* [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
[not found] <1478700000-11624-1-git-send-email-igor.mitsyanko.os@quantenna.com>
@ 2016-11-09 14:00 ` igor.mitsyanko.os
2016-11-14 9:52 ` Johannes Berg
2016-11-15 9:06 ` Johannes Berg
2016-11-09 15:56 ` [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device Johannes Berg
1 sibling, 2 replies; 30+ messages in thread
From: igor.mitsyanko.os @ 2016-11-09 14:00 UTC (permalink / raw)
To: johannes, linux-wireless
Cc: btherthala, hwang, smaksimenko, dlebed, Sergey Matyukevich,
Kamlesh Rath, Avinash Patil, Igor Mitsyanko
From: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
This patch adds support for new FullMAC WiFi driver for Quantenna
QSR10G chipsets.
QSR10G is Quantenna's 8x8, 160M, 11ac offering. QSR10G supports
2 simultaneous WMACs - one 5G and one 2G. 5G WMAC supports 160M,
8x8 configuration. FW supports 8 concurrent virtual
interfaces on each WMAC.
Patch introduces 2 new drivers:
- qtnfmac.ko for interfacing with kernel wireless core
- qtnfmac_pcie.ko for interfacing with hardware over PCIe interface
Signed-off-by: Dmitrii Lebed <dlebed@quantenna.com>
Signed-off-by: Sergei Maksimenko <smaksimenko@quantenna.com>
Signed-off-by: Sergey Matyukevich <smatyukevich@quantenna.com>
Signed-off-by: Bindu Therthala <btherthala@quantenna.com>
Signed-off-by: Huizhao Wang <hwang@quantenna.com>
Signed-off-by: Kamlesh Rath <krath@quantenna.com>
Signed-off-by: Avinash Patil <avinashp@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
---
Changelist V2->V3:
0. Send an RFC patch for linux-firmware adding QSR10G firmware.
1. Get rid of quantenna/include subdirectory and move all headers
into quantenna/fmac.
2. Pass the whole qlink_channel structure instead of passing channel
number for commands operating on channels.
3. Fix printk format for dma_addr_t.
4. Drop unneeded SKB alignment and unused alignement helpers. This
fixes kbuild errors as a side effect.
5. Fix comments style.
6. Update usage of WARN_ON conditionals.
7. Drop custom unaligned readers in favor of kernel builtin functions.
8. Replace sysfs by debugfs custom entries.
9. Remove '#undef DEBUG'.
10. Change EP firmware paths and names according to linux-firmware
conventions.
11. Fix prefixes in pr_* functions.
12. Modify channels initialization logic to retreive a correct
channels list from EP fro both 2.4 and 5 GHz radios.
13. Remove various unused functions/data structures.
14. Use pr_fmt to setup driver specific prefixes for qtnfmac logging.
15. Drop excessive logging.
16. Drop qtnfmac duplicates of linux ieee80211 structures definitions.
17. Ensure proper alignment for bus_priv.
18. Fix sparse warning when setting __le16 structure field.
Changelist V1->V2:
1. Get rid of confidentiality footer.
2. Rewrite qlink.h header to make it easier to use, add
documentation to most of qlink.h definitions.
MAINTAINERS | 8 +
drivers/net/wireless/Kconfig | 1 +
drivers/net/wireless/Makefile | 1 +
drivers/net/wireless/quantenna/Kconfig | 16 +
drivers/net/wireless/quantenna/Makefile | 6 +
drivers/net/wireless/quantenna/qtnfmac/Kconfig | 23 +
drivers/net/wireless/quantenna/qtnfmac/Makefile | 32 +
drivers/net/wireless/quantenna/qtnfmac/bus.h | 139 ++
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 1049 +++++++++++
drivers/net/wireless/quantenna/qtnfmac/cfg80211.h | 36 +
drivers/net/wireless/quantenna/qtnfmac/commands.c | 1953 ++++++++++++++++++++
drivers/net/wireless/quantenna/qtnfmac/commands.h | 74 +
drivers/net/wireless/quantenna/qtnfmac/core.c | 235 +++
drivers/net/wireless/quantenna/qtnfmac/core.h | 175 ++
drivers/net/wireless/quantenna/qtnfmac/debug.c | 46 +
drivers/net/wireless/quantenna/qtnfmac/debug.h | 50 +
drivers/net/wireless/quantenna/qtnfmac/event.c | 438 +++++
drivers/net/wireless/quantenna/qtnfmac/event.h | 27 +
drivers/net/wireless/quantenna/qtnfmac/init.c | 386 ++++
.../net/wireless/quantenna/qtnfmac/pearl/pcie.c | 1368 ++++++++++++++
.../quantenna/qtnfmac/pearl/pcie_bus_priv.h | 89 +
.../wireless/quantenna/qtnfmac/pearl/pcie_ipc.h | 157 ++
.../quantenna/qtnfmac/pearl/pcie_regs_pearl.h | 353 ++++
drivers/net/wireless/quantenna/qtnfmac/qlink.h | 907 +++++++++
.../net/wireless/quantenna/qtnfmac/qlink_util.c | 71 +
.../net/wireless/quantenna/qtnfmac/qlink_util.h | 80 +
.../net/wireless/quantenna/qtnfmac/qtn_hw_ids.h | 32 +
drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c | 172 ++
drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h | 80 +
.../net/wireless/quantenna/qtnfmac/shm_ipc_defs.h | 46 +
drivers/net/wireless/quantenna/qtnfmac/trans.c | 224 +++
drivers/net/wireless/quantenna/qtnfmac/trans.h | 57 +
drivers/net/wireless/quantenna/qtnfmac/util.c | 114 ++
drivers/net/wireless/quantenna/qtnfmac/util.h | 45 +
34 files changed, 8490 insertions(+)
create mode 100644 drivers/net/wireless/quantenna/Kconfig
create mode 100644 drivers/net/wireless/quantenna/Makefile
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/Kconfig
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/Makefile
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/bus.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/commands.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/commands.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/core.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/core.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/debug.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/debug.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/event.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/event.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/init.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/qlink.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/qlink_util.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/trans.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/trans.h
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/util.c
create mode 100644 drivers/net/wireless/quantenna/qtnfmac/util.h
diff --git a/MAINTAINERS b/MAINTAINERS
index f18b546..d4fa138 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9969,6 +9969,14 @@ L: qemu-devel@nongnu.org
S: Maintained
F: drivers/firmware/qemu_fw_cfg.c
+QUANTENNA QTNFMAC WIRELESS DRIVER
+M: Igor Mitsyanko <imitsyanko@quantenna.com>
+M: Avinash Patil <avinashp@quantenna.com>
+M: Sergey Matyukevich <smatyukevich@quantenna.com>
+L: linux-wireless@vger.kernel.org
+S: Maintained
+F: drivers/net/wireless/quantenna
+
RADOS BLOCK DEVICE (RBD)
M: Ilya Dryomov <idryomov@gmail.com>
M: Sage Weil <sage@redhat.com>
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 8c8edaf..3a2d1b2 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -32,6 +32,7 @@ source "drivers/net/wireless/rsi/Kconfig"
source "drivers/net/wireless/st/Kconfig"
source "drivers/net/wireless/ti/Kconfig"
source "drivers/net/wireless/zydas/Kconfig"
+source "drivers/net/wireless/quantenna/Kconfig"
config PCMCIA_RAYCS
tristate "Aviator/Raytheon 2.4GHz wireless support"
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index f00d429..54b41ac 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_WLAN_VENDOR_RSI) += rsi/
obj-$(CONFIG_WLAN_VENDOR_ST) += st/
obj-$(CONFIG_WLAN_VENDOR_TI) += ti/
obj-$(CONFIG_WLAN_VENDOR_ZYDAS) += zydas/
+obj-$(CONFIG_WLAN_VENDOR_QUANTENNA) += quantenna/
# 16-bit wireless PCMCIA client drivers
obj-$(CONFIG_PCMCIA_RAYCS) += ray_cs.o
diff --git a/drivers/net/wireless/quantenna/Kconfig b/drivers/net/wireless/quantenna/Kconfig
new file mode 100644
index 0000000..c177dd5
--- /dev/null
+++ b/drivers/net/wireless/quantenna/Kconfig
@@ -0,0 +1,16 @@
+config WLAN_VENDOR_QUANTENNA
+ bool "Quantenna WLAN devices"
+ default y
+ ---help---
+ If you have a wireless card belonging to this class, say Y.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about cards. If you say Y, you will be asked for
+ your specific card in the following questions.
+
+if WLAN_VENDOR_QUANTENNA
+
+source "drivers/net/wireless/quantenna/qtnfmac/Kconfig"
+
+endif # WLAN_VENDOR_QUANTENNA
diff --git a/drivers/net/wireless/quantenna/Makefile b/drivers/net/wireless/quantenna/Makefile
new file mode 100644
index 0000000..baebfbd
--- /dev/null
+++ b/drivers/net/wireless/quantenna/Makefile
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2015-2016 Quantenna Communications, Inc.
+# All rights reserved.
+#
+
+obj-$(CONFIG_QTNFMAC) += qtnfmac/
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Kconfig b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
new file mode 100644
index 0000000..d51a36d
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
@@ -0,0 +1,23 @@
+config QTNFMAC
+ tristate "Quantenna WiFi FullMAC WLAN driver"
+ default n
+ depends on CFG80211
+ ---help---
+ This option adds core support for wireless adapters based on
+ Quantenna 802.11n/ac chipsets. You still need separate
+ bus drivers for PCIe to be able to use real devices.
+
+ If you choose to build it as a module, it will be
+ called qtnfmac.ko.
+
+config QTNFMAC_PEARL_PCIE
+ tristate "PCIE bus interface support for Quantenna QSR10g FullMAC driver"
+ default n
+ depends on HAS_DMA && PCI
+ depends on QTNFMAC
+ select FW_LOADER
+ select CRC32
+ ---help---
+ This option adds support for wireless adapters based on Quantenna
+ QSR10g FullMAC chipset running over PCIe. If you choose to build
+ it as a module, it will be called qtnfmac_pearl_pcie.ko.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile
new file mode 100644
index 0000000..f51497a
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile
@@ -0,0 +1,32 @@
+#
+# Copyright (c) 2015-2016 Quantenna Communications, Inc.
+# All rights reserved.
+#
+
+ccflags-y += \
+ -Idrivers/net/wireless/quantenna/qtnfmac
+
+obj-$(CONFIG_QTNFMAC) += qtnfmac.o
+qtnfmac-objs += \
+ core.o \
+ init.o \
+ commands.o \
+ trans.o \
+ cfg80211.o \
+ event.o \
+ util.o \
+ qlink_util.o
+
+#
+
+obj-$(CONFIG_QTNFMAC_PEARL_PCIE) += qtnfmac_pearl_pcie.o
+
+qtnfmac_pearl_pcie-objs += \
+ shm_ipc.o \
+ pearl/pcie.o
+
+qtnfmac_pearl_pcie-$(CONFIG_DEBUG_FS) += debug.o
+
+#
+
+ccflags-y += -D__CHECK_ENDIAN
diff --git a/drivers/net/wireless/quantenna/qtnfmac/bus.h b/drivers/net/wireless/quantenna/qtnfmac/bus.h
new file mode 100644
index 0000000..da2c799
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/bus.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2015 Quantenna Communications
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef QTNFMAC_BUS_H
+#define QTNFMAC_BUS_H
+
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+
+#define QTNF_MAX_MAC 3
+
+enum qtnf_fw_state {
+ QTNF_FW_STATE_RESET,
+ QTNF_FW_STATE_FW_DNLD_DONE,
+ QTNF_FW_STATE_BOOT_DONE,
+ QTNF_FW_STATE_ACTIVE,
+ QTNF_FW_STATE_DEAD,
+};
+
+struct qtnf_bus;
+
+struct qtnf_bus_ops {
+ /* mgmt methods */
+ int (*preinit)(struct qtnf_bus *);
+ void (*stop)(struct qtnf_bus *);
+
+ /* control path methods */
+ int (*control_tx)(struct qtnf_bus *, struct sk_buff *);
+
+ /* data xfer methods */
+ int (*data_tx)(struct qtnf_bus *, struct sk_buff *);
+ void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
+ void (*data_rx_start)(struct qtnf_bus *);
+ void (*data_rx_stop)(struct qtnf_bus *);
+};
+
+struct qtnf_bus {
+ struct device *dev;
+ enum qtnf_fw_state fw_state;
+ u32 chip;
+ u32 chiprev;
+ struct qtnf_bus_ops *bus_ops;
+ struct qtnf_wmac *mac[QTNF_MAX_MAC];
+ struct qtnf_qlink_transport trans;
+ struct qtnf_hw_info hw_info;
+ char fwname[32];
+ struct napi_struct mux_napi;
+ struct net_device mux_dev;
+ struct completion request_firmware_complete;
+ struct workqueue_struct *workqueue;
+ struct work_struct event_work;
+ struct mutex bus_lock; /* lock during command/event processing */
+ struct dentry *dbg_dir;
+ /* bus private data */
+ char bus_priv[0] __aligned(sizeof(void *));
+};
+
+static inline void *get_bus_priv(struct qtnf_bus *bus)
+{
+ if (WARN(!bus, "qtnfmac: invalid bus pointer"))
+ return NULL;
+
+ return &bus->bus_priv;
+}
+
+/* callback wrappers */
+
+static inline int qtnf_bus_preinit(struct qtnf_bus *bus)
+{
+ if (!bus->bus_ops->preinit)
+ return 0;
+ return bus->bus_ops->preinit(bus);
+}
+
+static inline void qtnf_bus_stop(struct qtnf_bus *bus)
+{
+ if (!bus->bus_ops->stop)
+ return;
+ bus->bus_ops->stop(bus);
+}
+
+static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ return bus->bus_ops->data_tx(bus, skb);
+}
+
+static inline void
+qtnf_bus_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+ return bus->bus_ops->data_tx_timeout(bus, ndev);
+}
+
+static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ return bus->bus_ops->control_tx(bus, skb);
+}
+
+static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus)
+{
+ return bus->bus_ops->data_rx_start(bus);
+}
+
+static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus)
+{
+ return bus->bus_ops->data_rx_stop(bus);
+}
+
+static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus)
+{
+ mutex_lock(&bus->bus_lock);
+}
+
+static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus)
+{
+ mutex_unlock(&bus->bus_lock);
+}
+
+/* interface functions from common layer */
+
+void qtnf_rx_frame(struct device *dev, struct sk_buff *rxp);
+int qtnf_core_attach(struct qtnf_bus *bus);
+void qtnf_core_detach(struct qtnf_bus *bus);
+void qtnf_txflowblock(struct device *dev, bool state);
+void qtnf_txcomplete(struct device *dev, struct sk_buff *txp, bool success);
+
+#endif /* QTNFMAC_BUS_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
new file mode 100644
index 0000000..0ef35c7
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -0,0 +1,1049 @@
+/*
+ * Copyright (c) 2012-2012 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+#include <net/netlink.h>
+
+#include "cfg80211.h"
+#include "commands.h"
+#include "core.h"
+#include "util.h"
+#include "bus.h"
+
+/* Supported rates to be advertised to the cfg80211 */
+static struct ieee80211_rate qtnf_rates_2g[] = {
+ {.bitrate = 10, .hw_value = 2, },
+ {.bitrate = 20, .hw_value = 4, },
+ {.bitrate = 55, .hw_value = 11, },
+ {.bitrate = 110, .hw_value = 22, },
+ {.bitrate = 60, .hw_value = 12, },
+ {.bitrate = 90, .hw_value = 18, },
+ {.bitrate = 120, .hw_value = 24, },
+ {.bitrate = 180, .hw_value = 36, },
+ {.bitrate = 240, .hw_value = 48, },
+ {.bitrate = 360, .hw_value = 72, },
+ {.bitrate = 480, .hw_value = 96, },
+ {.bitrate = 540, .hw_value = 108, },
+};
+
+/* Supported rates to be advertised to the cfg80211 */
+static struct ieee80211_rate qtnf_rates_5g[] = {
+ {.bitrate = 60, .hw_value = 12, },
+ {.bitrate = 90, .hw_value = 18, },
+ {.bitrate = 120, .hw_value = 24, },
+ {.bitrate = 180, .hw_value = 36, },
+ {.bitrate = 240, .hw_value = 48, },
+ {.bitrate = 360, .hw_value = 72, },
+ {.bitrate = 480, .hw_value = 96, },
+ {.bitrate = 540, .hw_value = 108, },
+};
+
+/* Supported crypto cipher suits to be advertised to cfg80211 */
+static const u32 qtnf_cipher_suites[] = {
+ WLAN_CIPHER_SUITE_TKIP,
+ WLAN_CIPHER_SUITE_CCMP,
+ WLAN_CIPHER_SUITE_AES_CMAC,
+};
+
+/* Supported mgmt frame types to be advertised to cfg80211 */
+static const struct ieee80211_txrx_stypes
+qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = {
+ [NL80211_IFTYPE_STATION] = {
+ .tx = BIT(IEEE80211_STYPE_ACTION >> 4),
+ .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+ BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+ },
+ [NL80211_IFTYPE_AP] = {
+ .tx = BIT(IEEE80211_STYPE_ACTION >> 4),
+ .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+ BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+ },
+};
+
+static int
+qtnf_change_virtual_intf(struct wiphy *wiphy,
+ struct net_device *dev,
+ enum nl80211_iftype type, u32 *flags,
+ struct vif_params *params)
+{
+ struct qtnf_vif *vif;
+ u8 *mac_addr;
+
+ vif = qtnf_netdev_get_priv(dev);
+
+ if (params)
+ mac_addr = params->macaddr;
+ else
+ mac_addr = NULL;
+
+ if (qtnf_cmd_send_change_intf_type(vif, type, mac_addr)) {
+ pr_err("failed to change interface type\n");
+ return -EFAULT;
+ }
+
+ vif->wdev.iftype = type;
+ return 0;
+}
+
+int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+ struct net_device *netdev = wdev->netdev;
+ struct qtnf_vif *vif;
+
+ if (WARN(!netdev, "qtnfmac: could not get netdev for wdev"))
+ return -EFAULT;
+
+ vif = qtnf_netdev_get_priv(wdev->netdev);
+
+ if (qtnf_cmd_send_del_intf(vif))
+ pr_err("failed to send del_intf command\n");
+
+ /* Stop data */
+ netif_tx_stop_all_queues(netdev);
+ if (netif_carrier_ok(netdev))
+ netif_carrier_off(netdev);
+
+ if (netdev->reg_state == NETREG_REGISTERED)
+ unregister_netdevice(netdev);
+
+ /* Clear the vif in mac */
+ vif->netdev->ieee80211_ptr = NULL;
+ vif->netdev = NULL;
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ eth_zero_addr(vif->mac_addr);
+
+ return 0;
+}
+
+struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
+ const char *name,
+ unsigned char name_assign_type,
+ enum nl80211_iftype type,
+ u32 *flags,
+ struct vif_params *params)
+{
+ struct qtnf_wmac *mac;
+ struct qtnf_vif *vif;
+ u8 *mac_addr = NULL;
+
+ mac = wiphy_priv(wiphy);
+
+ if (!mac)
+ return ERR_PTR(-EFAULT);
+
+ switch (type) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_AP:
+ vif = qtnf_get_free_vif(mac);
+ if (!vif) {
+ pr_err("could not get free private structure\n");
+ return ERR_PTR(-EFAULT);
+ }
+
+ eth_zero_addr(vif->mac_addr);
+ vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
+ vif->wdev.wiphy = wiphy;
+ vif->wdev.iftype = type;
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+ break;
+ default:
+ pr_err("unsupported virtual interface type (%d)\n", type);
+ return ERR_PTR(-ENOTSUPP);
+ }
+
+ if (params)
+ mac_addr = params->macaddr;
+
+ if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) {
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ pr_err("failed to send add_intf command\n");
+ return ERR_PTR(-EFAULT);
+ }
+
+ if (!is_valid_ether_addr(vif->mac_addr)) {
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ pr_err("FW reported invalid MAC for new interface: %pM\n",
+ vif->mac_addr);
+ return ERR_PTR(-EFAULT);
+ }
+
+ if (qtnf_net_attach(mac, vif, name, name_assign_type, type)) {
+ pr_err("could not attach netdev\n");
+ vif->netdev = NULL;
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ return ERR_PTR(-EFAULT);
+ }
+
+ vif->wdev.netdev = vif->netdev;
+ return &vif->wdev;
+}
+
+/* concatenate all the beacon IEs into one buffer
+ * Take IEs from head, tail and beacon_ies fields of cfg80211_beacon_data
+ * and append it to provided buffer.
+ * Checks total IE buf length to be <= than IEEE80211_MAX_DATA_LEN.
+ * Checks IE buffers to be valid, so that resulting buffer
+ * should be a valid IE buffer with length <= IEEE80211_MAX_DATA_LEN.
+ */
+static int qtnf_get_beacon_ie(const struct cfg80211_beacon_data *info,
+ uint8_t *buf)
+{
+ const struct ieee80211_mgmt *frame = (void *)info->head;
+ const size_t head_tlv_offset = offsetof(struct ieee80211_mgmt,
+ u.beacon.variable);
+ const size_t head_tlv_len = (info->head_len > head_tlv_offset) ?
+ info->head_len - head_tlv_offset : 0;
+ size_t pos = 0;
+
+ if (frame && head_tlv_len) {
+ if (pos + head_tlv_len > IEEE80211_MAX_DATA_LEN) {
+ pr_warn("too large beacon head IEs: %zu\n",
+ pos + head_tlv_len);
+ return -E2BIG;
+ }
+
+ memcpy(buf, frame->u.beacon.variable, head_tlv_len);
+ pos += head_tlv_len;
+ buf += head_tlv_len;
+ }
+
+ if (info->tail && info->tail_len) {
+ if (pos + info->tail_len > IEEE80211_MAX_DATA_LEN) {
+ pr_warn("too large beacon tail IEs: %zu\n",
+ pos + info->tail_len);
+ return -E2BIG;
+ }
+
+ memcpy(buf, info->tail, info->tail_len);
+ pos += info->tail_len;
+ buf += info->tail_len;
+ }
+
+ if (info->beacon_ies && info->beacon_ies_len) {
+ if (pos + info->beacon_ies_len > IEEE80211_MAX_DATA_LEN) {
+ pr_warn("too large beacon extra IEs: %zu\n",
+ pos + info->beacon_ies_len);
+ return -E2BIG;
+ }
+
+ memcpy(buf, info->beacon_ies, info->beacon_ies_len);
+ pos += info->beacon_ies_len;
+ buf += info->beacon_ies_len;
+ }
+
+ return pos;
+}
+
+static int qtnf_mgmt_set_appie(struct qtnf_vif *vif,
+ const struct cfg80211_beacon_data *info)
+{
+ u8 *beacon_ies;
+ int beacon_ies_len;
+ int ret = 0;
+
+ beacon_ies = kmalloc(IEEE80211_MAX_DATA_LEN, GFP_KERNEL);
+
+ if (unlikely(!beacon_ies))
+ return -ENOMEM;
+
+ beacon_ies_len = qtnf_get_beacon_ie(info, beacon_ies);
+
+ if (unlikely(beacon_ies_len < 0)) {
+ ret = beacon_ies_len;
+ goto out;
+ }
+
+ ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_MGMT_FRAME_BEACON,
+ beacon_ies, beacon_ies_len);
+
+ if (ret)
+ goto out;
+
+ if (!info->proberesp_ies || !info->proberesp_ies_len) {
+ ret = qtnf_cmd_send_mgmt_set_appie(vif,
+ QLINK_MGMT_FRAME_PROBE_RESP,
+ NULL, 0);
+ } else {
+ ret = qtnf_cmd_send_mgmt_set_appie(vif,
+ QLINK_MGMT_FRAME_PROBE_RESP,
+ info->proberesp_ies,
+ info->proberesp_ies_len);
+ }
+
+ if (ret)
+ goto out;
+
+ if (!info->assocresp_ies || !info->assocresp_ies_len) {
+ ret = qtnf_cmd_send_mgmt_set_appie(vif,
+ QLINK_MGMT_FRAME_ASSOC_RESP,
+ NULL, 0);
+ } else {
+ ret = qtnf_cmd_send_mgmt_set_appie(vif,
+ QLINK_MGMT_FRAME_ASSOC_RESP,
+ info->assocresp_ies,
+ info->assocresp_ies_len);
+ }
+
+out:
+ kfree(beacon_ies);
+ return ret;
+}
+
+static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_beacon_data *info)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ if (!(vif->bss_status & QTNF_STATE_AP_START)) {
+ pr_err("bss not started\n");
+ return -EFAULT;
+ }
+
+ return qtnf_mgmt_set_appie(vif, info);
+}
+
+static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_ap_settings *settings)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+ struct qtnf_bss_config *bss_cfg;
+
+ bss_cfg = &vif->bss_cfg;
+
+ memset(bss_cfg, 0, sizeof(*bss_cfg));
+
+ bss_cfg->bcn_period = settings->beacon_interval;
+ bss_cfg->dtim = settings->dtim_period;
+ bss_cfg->auth_type = settings->auth_type;
+ bss_cfg->privacy = settings->privacy;
+
+ bss_cfg->ssid_len = settings->ssid_len;
+ memcpy(&bss_cfg->ssid, settings->ssid, bss_cfg->ssid_len);
+
+ memcpy(&bss_cfg->chandef, &settings->chandef,
+ sizeof(struct cfg80211_chan_def));
+ memcpy(&bss_cfg->crypto, &settings->crypto,
+ sizeof(struct cfg80211_crypto_settings));
+
+ if (qtnf_cmd_send_config_ap(vif)) {
+ pr_err("failed to upload AP configuration to FW\n");
+ return -EFAULT;
+ }
+
+ if (!(vif->bss_status & QTNF_STATE_AP_CONFIG)) {
+ pr_err("failed to configure AP settings in FW\n");
+ return -EFAULT;
+ }
+
+ /* update beacon extra IEs */
+ if (qtnf_mgmt_set_appie(vif, &settings->beacon)) {
+ pr_err("failed to setup mgmt frames IEs in FW\n");
+ return -EFAULT;
+ }
+
+ if (qtnf_cmd_send_start_ap(vif)) {
+ pr_err("failed to issue start AP command\n");
+ return -EFAULT;
+ }
+
+ if (!(vif->bss_status & QTNF_STATE_AP_START)) {
+ pr_err("failed to start AP operations in FW\n");
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ if (qtnf_cmd_send_stop_ap(vif)) {
+ pr_err("failed to stop AP operation in FW\n");
+ vif->bss_status &= ~QTNF_STATE_AP_START;
+ vif->bss_status &= ~QTNF_STATE_AP_CONFIG;
+
+ netif_carrier_off(vif->netdev);
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+ struct qtnf_wmac *mac = wiphy_priv(wiphy);
+ struct qtnf_vif *vif;
+ int ret;
+
+ vif = qtnf_get_base_vif(mac);
+ if (!vif) {
+ pr_err("primary interface is not configured\n");
+ return -EFAULT;
+ }
+
+ if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) {
+ pr_err("device doesn't support modifing retry parameters\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = qtnf_cmd_send_update_phy_params(mac, QLINK_CMD_ACTION_SET,
+ changed);
+ if (ret)
+ pr_err("failed to configure phy thresholds\n");
+
+ return ret;
+}
+
+static void
+qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
+ u16 frame_type, bool reg)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+ u16 mgmt_type;
+ u16 new_mask;
+ u16 qlink_frame_type = 0;
+
+ mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
+
+ if (reg)
+ new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type);
+ else
+ new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type);
+
+ if (new_mask == vif->mgmt_frames_bitmask)
+ return;
+
+ switch (frame_type & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ;
+ break;
+ case IEEE80211_STYPE_ACTION:
+ qlink_frame_type = QLINK_MGMT_FRAME_ACTION;
+ break;
+ default:
+ pr_warn("unsupported frame type: %X\n",
+ (frame_type & IEEE80211_FCTL_STYPE) >> 4);
+ return;
+ }
+
+ if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) {
+ pr_warn("failed to %sregistered mgmt frame type 0x%x\n",
+ reg ? "" : "un", frame_type);
+ return;
+ }
+
+ vif->mgmt_frames_bitmask = new_mask;
+ pr_debug("%sregistered mgmt frame type 0x%x\n",
+ reg ? "" : "un", frame_type);
+}
+
+static int
+qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+ struct cfg80211_mgmt_tx_params *params, u64 *cookie)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+ const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf;
+ u32 short_cookie = prandom_u32();
+ u16 flags = 0;
+
+ *cookie = short_cookie;
+
+ if (params->offchan)
+ flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN;
+
+ if (params->no_cck)
+ flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK;
+
+ if (params->dont_wait_for_ack)
+ flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT;
+
+ pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n",
+ wdev->netdev->name, params->chan->center_freq,
+ le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da,
+ params->len, short_cookie, flags);
+
+ return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags,
+ params->chan->center_freq,
+ params->buf, params->len);
+}
+
+static int
+qtnf_get_station(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *mac, struct station_info *sinfo)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ return qtnf_cmd_get_sta_info(vif, mac, sinfo);
+}
+
+static int
+qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
+ int idx, u8 *mac, struct station_info *sinfo)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+ const struct qtnf_sta_node *sta_node;
+ int ret;
+
+ sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
+
+ if (unlikely(!sta_node))
+ return -ENOENT;
+
+ ether_addr_copy(mac, sta_node->mac_addr);
+
+ ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo);
+
+ if (unlikely(ret == -ENOENT)) {
+ sinfo->filled = 0;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_index, bool pairwise, const u8 *mac_addr,
+ struct key_params *params)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ pr_debug("cipher=%x idx=%u pairwise=%u\n", params->cipher,
+ key_index, pairwise);
+ if (qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr,
+ params)) {
+ pr_err("failed to add key\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_index, bool pairwise, const u8 *mac_addr)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ pr_debug("idx=%u pairwise=%u\n", key_index, pairwise);
+ if (qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr)) {
+ pr_err("failed to delete key\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_index, bool unicast, bool multicast)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ pr_debug("idx=%u unicast=%u multicast=%u\n", key_index,
+ unicast, multicast);
+ if (qtnf_cmd_send_set_default_key(vif, key_index, unicast,
+ multicast)) {
+ pr_err("failed to set default key\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int
+qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev,
+ u8 key_index)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ pr_debug("idx=%u\n", key_index);
+ if (qtnf_cmd_send_set_default_mgmt_key(vif, key_index)) {
+ pr_err("failed to set default mgmt key\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int
+qtnf_change_station(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *mac, struct station_parameters *params)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ if (qtnf_cmd_send_change_sta(vif, mac, params)) {
+ pr_err("failed to change STA\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int
+qtnf_del_station(struct wiphy *wiphy, struct net_device *dev,
+ struct station_del_parameters *params)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+ if (params->mac &&
+ (vif->wdev.iftype == NL80211_IFTYPE_AP) &&
+ !is_broadcast_ether_addr(params->mac) &&
+ !qtnf_sta_list_lookup(&vif->sta_list, params->mac))
+ return 0;
+ if (qtnf_cmd_send_del_sta(vif, params)) {
+ pr_err("failed to delete STA\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int
+qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
+{
+ struct qtnf_wmac *mac = wiphy_priv(wiphy);
+
+ mac->scan_req = request;
+
+ if (qtnf_cmd_send_scan(mac)) {
+ pr_err("failed to start scan\n");
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int
+qtnf_connect(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_connect_params *sme)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+ struct qtnf_bss_config *bss_cfg;
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+ pr_err("can't connect when not in STA mode\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (vif->sta_state != QTNF_STA_DISCONNECTED)
+ return -EBUSY;
+
+ bss_cfg = &vif->bss_cfg;
+ memset(bss_cfg, 0, sizeof(*bss_cfg));
+
+ bss_cfg->ssid_len = sme->ssid_len;
+ memcpy(&bss_cfg->ssid, sme->ssid, bss_cfg->ssid_len);
+ bss_cfg->chandef.chan = sme->channel;
+ bss_cfg->auth_type = sme->auth_type;
+ bss_cfg->privacy = sme->privacy;
+ bss_cfg->mfp = sme->mfp;
+ if ((sme->bg_scan_period > 0) &&
+ (sme->bg_scan_period <= QTNF_MAX_BG_SCAN_PERIOD))
+ bss_cfg->bg_scan_period = sme->bg_scan_period;
+ else if (sme->bg_scan_period == -1)
+ bss_cfg->bg_scan_period = QTNF_DEFAULT_BG_SCAN_PERIOD;
+ else
+ bss_cfg->bg_scan_period = 0; /* disabled */
+ bss_cfg->connect_flags = 0;
+ if (sme->flags & ASSOC_REQ_DISABLE_HT)
+ bss_cfg->connect_flags |= QLINK_STA_CONNECT_DISABLE_HT;
+ if (sme->flags & ASSOC_REQ_DISABLE_VHT)
+ bss_cfg->connect_flags |= QLINK_STA_CONNECT_DISABLE_VHT;
+ if (sme->flags & ASSOC_REQ_USE_RRM)
+ bss_cfg->connect_flags |= QLINK_STA_CONNECT_USE_RRM;
+ memcpy(&bss_cfg->crypto, &sme->crypto, sizeof(bss_cfg->crypto));
+ if (sme->bssid)
+ ether_addr_copy(bss_cfg->bssid, sme->bssid);
+ else
+ eth_zero_addr(bss_cfg->bssid);
+
+ if (qtnf_cmd_send_connect(vif, sme)) {
+ pr_err("failed to connect\n");
+ return -EFAULT;
+ }
+
+ vif->sta_state = QTNF_STA_CONNECTING;
+ return 0;
+}
+
+static int
+qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev,
+ u16 reason_code)
+{
+ struct qtnf_wmac *mac = wiphy_priv(wiphy);
+ struct qtnf_vif *vif;
+
+ vif = qtnf_get_base_vif(mac);
+ if (!vif) {
+ pr_err("primary interface is not configured\n");
+ return -EFAULT;
+ }
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+ pr_err("can't disconnect when not in STA mode\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (vif->sta_state == QTNF_STA_DISCONNECTED)
+ return 0;
+
+ if (qtnf_cmd_send_disconnect(vif, reason_code)) {
+ pr_err("failed to disconnect\n");
+ return -EFAULT;
+ }
+
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+ return 0;
+}
+
+static struct cfg80211_ops qtn_cfg80211_ops = {
+ .add_virtual_intf = qtnf_add_virtual_intf,
+ .change_virtual_intf = qtnf_change_virtual_intf,
+ .del_virtual_intf = qtnf_del_virtual_intf,
+ .start_ap = qtnf_start_ap,
+ .change_beacon = qtnf_change_beacon,
+ .stop_ap = qtnf_stop_ap,
+ .set_wiphy_params = qtnf_set_wiphy_params,
+ .mgmt_frame_register = qtnf_mgmt_frame_register,
+ .mgmt_tx = qtnf_mgmt_tx,
+ .change_station = qtnf_change_station,
+ .del_station = qtnf_del_station,
+ .get_station = qtnf_get_station,
+ .dump_station = qtnf_dump_station,
+ .add_key = qtnf_add_key,
+ .del_key = qtnf_del_key,
+ .set_default_key = qtnf_set_default_key,
+ .set_default_mgmt_key = qtnf_set_default_mgmt_key,
+ .scan = qtnf_scan,
+ .connect = qtnf_connect,
+ .disconnect = qtnf_disconnect
+};
+
+static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy,
+ struct regulatory_request *req)
+{
+ struct qtnf_wmac *mac = wiphy_priv(wiphy);
+ struct qtnf_bus *bus;
+ struct qtnf_vif *vif;
+ struct qtnf_wmac *chan_mac;
+ int i;
+ enum nl80211_band band;
+
+ bus = mac->bus;
+
+ pr_debug("initiator=%d, alpha=%c%c, mac=%d\n", req->initiator,
+ req->alpha2[0], req->alpha2[1], mac->macid);
+
+ vif = qtnf_get_base_vif(mac);
+ if (!vif) {
+ pr_err("primary interface is not configured\n");
+ return;
+ }
+ /* ignore non-ISO3166 country codes */
+ for (i = 0; i < sizeof(req->alpha2); i++) {
+ if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
+ pr_err("not a ISO3166 code\n");
+ return;
+ }
+ }
+ if (!strncasecmp(req->alpha2, bus->hw_info.alpha2_code,
+ sizeof(req->alpha2))) {
+ pr_warn("unchanged country code\n");
+ return;
+ }
+
+ if (qtnf_cmd_send_regulatory_config(mac, QLINK_CMD_ACTION_SET,
+ req->alpha2)) {
+ pr_err("failed to download regulatory configuration\n");
+ return;
+ }
+
+ for (i = 0; i < bus->hw_info.num_mac; i++) {
+ chan_mac = bus->mac[i];
+
+ if (!chan_mac || !chan_mac->mac_started)
+ continue;
+
+ if (!(bus->hw_info.mac_bitmap & BIT(i)))
+ continue;
+
+ for (band = 0; band < NUM_NL80211_BANDS; ++band) {
+ if (!wiphy->bands[band])
+ continue;
+
+ if (qtnf_cmd_get_mac_chan_info(chan_mac,
+ wiphy->bands[band])) {
+ pr_err("could not get channel information for mac%d\n",
+ chan_mac->macid);
+ qtnf_core_detach(bus);
+
+ return;
+ }
+ }
+ }
+}
+
+void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo,
+ struct ieee80211_supported_band *band)
+{
+ struct ieee80211_sta_ht_cap *ht_cap;
+ struct ieee80211_sta_vht_cap *vht_cap;
+
+ ht_cap = &band->ht_cap;
+ ht_cap->ht_supported = true;
+ memcpy(&ht_cap->cap, &macinfo->ht_cap.cap_info,
+ sizeof(u16));
+ ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+ ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
+ memcpy(&ht_cap->mcs, &macinfo->ht_cap.mcs,
+ sizeof(ht_cap->mcs));
+
+ if (macinfo->phymode_cap & QLINK_PHYMODE_AC) {
+ vht_cap = &band->vht_cap;
+ vht_cap->vht_supported = true;
+ memcpy(&vht_cap->cap,
+ &macinfo->vht_cap.vht_cap_info, sizeof(u32));
+ /* Update MCS support for VHT */
+ memcpy(&vht_cap->vht_mcs,
+ &macinfo->vht_cap.supp_mcs,
+ sizeof(struct ieee80211_vht_mcs_info));
+ }
+}
+
+struct wiphy *qtnf_allocate_wiphy(struct qtnf_bus *bus)
+{
+ struct wiphy *wiphy;
+
+ wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac));
+ if (!wiphy) {
+ pr_err("could not create new wiphy\n");
+ return NULL;
+ }
+
+ set_wiphy_dev(wiphy, bus->dev);
+
+ return wiphy;
+}
+
+static int qtnf_wiphy_setup_if_comb(struct wiphy *wiphy,
+ struct ieee80211_iface_combination *if_comb,
+ const struct qtnf_mac_info *mac_info)
+{
+ size_t max_interfaces = 0;
+ u16 interface_modes = 0;
+ size_t i;
+
+ if (unlikely(!mac_info->limits || !mac_info->n_limits)) {
+ pr_err("no interface types supported\n");
+ return -ENOENT;
+ }
+
+ if_comb->limits = mac_info->limits;
+ if_comb->n_limits = mac_info->n_limits;
+
+ for (i = 0; i < mac_info->n_limits; i++) {
+ max_interfaces += mac_info->limits[i].max;
+ interface_modes |= mac_info->limits[i].types;
+ }
+
+ if_comb->num_different_channels = 1;
+ if_comb->beacon_int_infra_match = true;
+ if_comb->max_interfaces = max_interfaces;
+ if_comb->radar_detect_widths = mac_info->radar_detect_widths;
+ wiphy->interface_modes = interface_modes;
+
+ pr_debug("MAX_IF: %zu; MODES: %.4X; RADAR WIDTHS: %.2X\n",
+ max_interfaces, interface_modes, if_comb->radar_detect_widths);
+
+ return 0;
+}
+
+int qtnf_register_wiphy(struct qtnf_bus *bus, struct qtnf_wmac *mac)
+{
+ struct wiphy *wiphy = priv_to_wiphy(mac);
+ struct ieee80211_iface_combination *iface_comb = NULL;
+ int ret;
+
+ if (!wiphy) {
+ pr_err("invalid wiphy pointer\n");
+ return -EFAULT;
+ }
+
+ iface_comb = kzalloc(sizeof(*iface_comb), GFP_KERNEL);
+ if (!iface_comb) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = qtnf_wiphy_setup_if_comb(wiphy, iface_comb, &mac->macinfo);
+ if (ret)
+ goto out;
+
+ pr_info("macid=%d, phymode=%#x\n", mac->macid,
+ mac->macinfo.phymode_cap);
+
+ wiphy->frag_threshold = mac->macinfo.frag_thr;
+ wiphy->rts_threshold = mac->macinfo.rts_thr;
+ wiphy->retry_short = mac->macinfo.sretry_limit;
+ wiphy->retry_long = mac->macinfo.lretry_limit;
+ wiphy->coverage_class = mac->macinfo.coverage_class;
+
+ wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH;
+ wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN;
+ wiphy->mgmt_stypes = qtnf_mgmt_stypes;
+ wiphy->max_remain_on_channel_duration = 5000;
+
+ wiphy->iface_combinations = iface_comb;
+ wiphy->n_iface_combinations = 1;
+
+ /* Initialize cipher suits */
+ wiphy->cipher_suites = qtnf_cipher_suites;
+ wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites);
+ wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+ wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
+ WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
+ WIPHY_FLAG_AP_UAPSD;
+
+ wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
+ NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
+
+ wiphy->available_antennas_tx = mac->macinfo.num_tx_chain;
+ wiphy->available_antennas_rx = mac->macinfo.num_rx_chain;
+
+ wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta;
+
+ ether_addr_copy(wiphy->perm_addr, mac->macaddr);
+
+ if (bus->hw_info.hw_capab & QLINK_HW_SUPPORTS_REG_UPDATE) {
+ pr_debug("device supports REG_UPDATE\n");
+ wiphy->reg_notifier = qtnf_cfg80211_reg_notifier;
+ pr_debug("hint regulatory about EP region: %c%c\n",
+ bus->hw_info.alpha2_code[0],
+ bus->hw_info.alpha2_code[1]);
+ regulatory_hint(wiphy, bus->hw_info.alpha2_code);
+ } else {
+ pr_debug("device doesn't support REG_UPDATE\n");
+ wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
+ }
+
+ pr_debug("registering regulatory for mac(%d)\n", mac->macid);
+ ret = wiphy_register(wiphy);
+
+out:
+ if (ret < 0) {
+ pr_err("could not register wiphy\n");
+ kfree(iface_comb);
+ return ret;
+ }
+
+ return 0;
+}
+
+void qtnf_netdev_updown(struct net_device *ndev, bool up)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+
+ if (qtnf_cmd_send_updown_intf(vif, up))
+ pr_err("failed to send up/down command to FW\n");
+}
+
+void qtnf_virtual_intf_cleanup(struct net_device *ndev)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+ struct qtnf_wmac *mac = mac = wiphy_priv(vif->wdev.wiphy);
+
+ if (vif->wdev.iftype == NL80211_IFTYPE_STATION) {
+ switch (vif->sta_state) {
+ case QTNF_STA_DISCONNECTED:
+ break;
+ case QTNF_STA_CONNECTING:
+ cfg80211_connect_result(vif->netdev,
+ vif->bss_cfg.bssid, NULL, 0,
+ NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
+ qtnf_disconnect(vif->wdev.wiphy, ndev,
+ WLAN_REASON_DEAUTH_LEAVING);
+ break;
+ case QTNF_STA_CONNECTED:
+ cfg80211_disconnected(vif->netdev,
+ WLAN_REASON_DEAUTH_LEAVING,
+ NULL, 0, 1, GFP_KERNEL);
+ qtnf_disconnect(vif->wdev.wiphy, ndev,
+ WLAN_REASON_DEAUTH_LEAVING);
+ break;
+ }
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+ if (mac->scan_req) {
+ struct cfg80211_scan_info info = {
+ .aborted = true,
+ };
+
+ cfg80211_scan_done(mac->scan_req, &info);
+ mac->scan_req = NULL;
+ }
+ }
+}
+
+void qtnf_virtual_intf_local_reset(struct net_device *ndev)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+ struct qtnf_wmac *mac = mac = wiphy_priv(vif->wdev.wiphy);
+
+ if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+ return;
+
+ /* stop tx completely */
+ netif_tx_stop_all_queues(ndev);
+ if (netif_carrier_ok(ndev))
+ netif_carrier_off(ndev);
+
+ /* nofity cfg80211 */
+ if (vif->wdev.iftype == NL80211_IFTYPE_STATION) {
+ switch (vif->sta_state) {
+ case QTNF_STA_CONNECTING:
+ cfg80211_connect_result(vif->netdev,
+ vif->bss_cfg.bssid, NULL, 0,
+ NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
+ break;
+ case QTNF_STA_CONNECTED:
+ cfg80211_disconnected(vif->netdev,
+ WLAN_REASON_DEAUTH_LEAVING,
+ NULL, 0, 1, GFP_KERNEL);
+ break;
+ case QTNF_STA_DISCONNECTED:
+ break;
+ }
+ }
+
+ cfg80211_shutdown_all_interfaces(vif->wdev.wiphy);
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+}
+
+void qtnf_band_init_rates(struct ieee80211_supported_band *band)
+{
+ switch (band->band) {
+ case NL80211_BAND_2GHZ:
+ band->bitrates = qtnf_rates_2g;
+ band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g);
+ break;
+ case NL80211_BAND_5GHZ:
+ band->bitrates = qtnf_rates_5g;
+ band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g);
+ break;
+ default:
+ band->bitrates = NULL;
+ band->n_bitrates = 0;
+ break;
+ }
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
new file mode 100644
index 0000000..724a4d2
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_CFG80211_H_
+#define _QTN_FMAC_CFG80211_H_
+
+#include <net/cfg80211.h>
+
+#include "core.h"
+
+int qtnf_register_wiphy(struct qtnf_bus *bus, struct qtnf_wmac *mac);
+int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev);
+void qtnf_virtual_intf_local_reset(struct net_device *ndev);
+struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
+ const char *name,
+ unsigned char name_assign_type,
+ enum nl80211_iftype type, u32 *flags,
+ struct vif_params *params);
+void qtnf_band_init_rates(struct ieee80211_supported_band *band);
+void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo,
+ struct ieee80211_supported_band *band);
+
+#endif /* _QTN_FMAC_CFG80211_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
new file mode 100644
index 0000000..5f7d434
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -0,0 +1,1953 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/skbuff.h>
+
+#include "cfg80211.h"
+#include "core.h"
+#include "qlink.h"
+#include "qlink_util.h"
+#include "bus.h"
+#include "commands.h"
+
+static int qtnf_cmd_check_reply_header(const struct qlink_resp *resp,
+ u16 cmd_id, u8 mac_id, u8 vif_id,
+ size_t resp_size)
+{
+ if (unlikely(le16_to_cpu(resp->cmd_id) != cmd_id)) {
+ pr_warn("invalid response cmd_id: 0x%.4X != 0x%.4X\n",
+ le16_to_cpu(resp->cmd_id), cmd_id);
+ return -EINVAL;
+ }
+
+ if (unlikely(resp->macid != mac_id)) {
+ pr_warn("invalid response macid: 0x%.2X != 0x%.2X\n",
+ resp->macid, mac_id);
+ return -EINVAL;
+ }
+
+ if (unlikely(resp->vifid != vif_id)) {
+ pr_warn("invalid response vif_id: 0x%.2X != 0x%.2X\n",
+ resp->vifid, vif_id);
+ return -EINVAL;
+ }
+
+ if (unlikely(le16_to_cpu(resp->mhdr.len) < resp_size)) {
+ pr_warn("invalid response size for cmd=0x%.4X mac=0x%.2X vif=0x%.2X: %u < %zu\n",
+ cmd_id, mac_id, vif_id,
+ le16_to_cpu(resp->mhdr.len), resp_size);
+ return -ENOSPC;
+ }
+
+ return 0;
+}
+
+static int qtnf_cmd_send_with_reply(struct qtnf_bus *bus,
+ struct sk_buff *cmd_skb,
+ struct sk_buff **response_skb,
+ u16 *result_code,
+ size_t const_resp_size,
+ size_t *var_resp_size)
+{
+ struct qlink_cmd *cmd;
+ const struct qlink_resp *resp;
+ struct sk_buff *resp_skb = NULL;
+ u16 cmd_id;
+ u8 mac_id, vif_id;
+ int ret;
+
+ if (unlikely(!cmd_skb)) {
+ pr_err("no command skb\n");
+ return -EFAULT;
+ }
+
+ if (unlikely(!cmd_skb->data) || unlikely(cmd_skb->len < sizeof(*cmd))) {
+ pr_err("invalid command skb data\n");
+ kfree_skb(cmd_skb);
+ return -EFAULT;
+ }
+
+ cmd = (struct qlink_cmd *)cmd_skb->data;
+ cmd_id = le16_to_cpu(cmd->cmd_id);
+ mac_id = cmd->macid;
+ vif_id = cmd->vifid;
+ cmd->mhdr.len = cpu_to_le16(cmd_skb->len);
+
+ if (unlikely(bus->fw_state != QTNF_FW_STATE_ACTIVE &&
+ le16_to_cpu(cmd->cmd_id) != QLINK_CMD_FW_INIT)) {
+ pr_warn("drop cmd 0x%.4X in fw state %d\n",
+ le16_to_cpu(cmd->cmd_id), bus->fw_state);
+ return -ENODEV;
+ }
+
+ pr_debug("cmd=0x%.4X macid=0x%.2X vif=0x%.2X\n",
+ le16_to_cpu(cmd->cmd_id), cmd->macid, cmd->vifid);
+
+ ret = qtnf_trans_send_cmd_with_resp(bus, cmd_skb, &resp_skb);
+
+ if (unlikely(ret))
+ goto out;
+
+ resp = (const struct qlink_resp *)resp_skb->data;
+ ret = qtnf_cmd_check_reply_header(resp, cmd_id, mac_id, vif_id,
+ const_resp_size);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (likely(result_code))
+ *result_code = le16_to_cpu(resp->result);
+
+ /* Return length of variable part of response */
+ if (response_skb && var_resp_size)
+ *var_resp_size = le16_to_cpu(resp->mhdr.len) - const_resp_size;
+
+out:
+ if (response_skb)
+ *response_skb = resp_skb;
+ else
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+static inline int qtnf_cmd_send(struct qtnf_bus *bus,
+ struct sk_buff *cmd_skb,
+ u16 *result_code)
+{
+ return qtnf_cmd_send_with_reply(bus, cmd_skb, NULL, result_code,
+ sizeof(struct qlink_resp), NULL);
+}
+
+static struct sk_buff *qtnf_cmd_alloc_new_cmdskb(u8 macid, u8 vifid, u16 cmd_no,
+ size_t cmd_size)
+{
+ struct qlink_cmd *cmd;
+ struct sk_buff *cmd_skb;
+
+ cmd_skb = __dev_alloc_skb(sizeof(*cmd) +
+ QTNF_MAX_CMD_BUF_SIZE, GFP_KERNEL);
+ if (unlikely(!cmd_skb)) {
+ pr_err("failed to allocate cmd_skb\n");
+ return NULL;
+ }
+
+ memset(skb_put(cmd_skb, cmd_size), 0, cmd_size);
+
+ cmd = (struct qlink_cmd *)cmd_skb->data;
+ cmd->mhdr.len = cpu_to_le16(cmd_skb->len);
+ cmd->mhdr.type = cpu_to_le16(QLINK_MSG_TYPE_CMD);
+ cmd->cmd_id = cpu_to_le16(cmd_no);
+ cmd->macid = macid;
+ cmd->vifid = vifid;
+
+ return cmd_skb;
+}
+
+int qtnf_cmd_send_start_ap(struct qtnf_vif *vif)
+{
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_START_AP,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ vif->bss_status |= QTNF_STATE_AP_START;
+ netif_carrier_on(vif->netdev);
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_regulatory_config(struct qtnf_wmac *mac, u16 action,
+ const char *alpha2)
+{
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ if ((action == QLINK_CMD_ACTION_SET) && !alpha2)
+ return -EINVAL;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+ QLINK_CMD_REG_REGION,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_cmd_skb_put_action(cmd_skb, action);
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_COUNTRY, alpha2,
+ QTNF_MAX_ALPHA_LEN);
+
+ ret = qtnf_cmd_send(mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ memcpy(mac->bus->hw_info.alpha2_code, alpha2,
+ sizeof(mac->bus->hw_info.alpha2_code));
+out:
+ return ret;
+}
+
+int qtnf_cmd_send_config_ap(struct qtnf_vif *vif)
+{
+ struct sk_buff *cmd_skb;
+ struct qtnf_bss_config *bss_cfg = &vif->bss_cfg;
+ struct cfg80211_chan_def *chandef = &bss_cfg->chandef;
+ struct qlink_tlv_channel *qchan;
+ struct qlink_auth_encr aen;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+ int i;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_CONFIG_AP,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ qtnf_cmd_skb_put_action(cmd_skb, QLINK_CMD_ACTION_SET);
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, bss_cfg->ssid,
+ bss_cfg->ssid_len);
+ qtnf_cmd_skb_put_tlv_u16(cmd_skb, QTN_TLV_ID_BCN_PERIOD,
+ bss_cfg->bcn_period);
+ qtnf_cmd_skb_put_tlv_u8(cmd_skb, QTN_TLV_ID_DTIM, bss_cfg->dtim);
+
+ qchan = (struct qlink_tlv_channel *)skb_put(cmd_skb, sizeof(*qchan));
+
+ memset(qchan, 0, sizeof(*qchan));
+ qchan->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANNEL);
+ qchan->hdr.len = cpu_to_le16(sizeof(*qchan) -
+ sizeof(struct qlink_tlv_hdr));
+ qchan->hw_value = cpu_to_le16(
+ ieee80211_frequency_to_channel(chandef->chan->center_freq));
+
+ memset(&aen, 0, sizeof(aen));
+ aen.auth_type = bss_cfg->auth_type;
+ aen.privacy = !!bss_cfg->privacy;
+ aen.mfp = bss_cfg->mfp;
+ aen.wpa_versions = cpu_to_le32(bss_cfg->crypto.wpa_versions);
+ aen.cipher_group = cpu_to_le32(bss_cfg->crypto.cipher_group);
+ aen.n_ciphers_pairwise = cpu_to_le32(
+ bss_cfg->crypto.n_ciphers_pairwise);
+ for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++)
+ aen.ciphers_pairwise[i] = cpu_to_le32(
+ bss_cfg->crypto.ciphers_pairwise[i]);
+ aen.n_akm_suites = cpu_to_le32(
+ bss_cfg->crypto.n_akm_suites);
+ for (i = 0; i < QLINK_MAX_NR_AKM_SUITES; i++)
+ aen.akm_suites[i] = cpu_to_le32(
+ bss_cfg->crypto.akm_suites[i]);
+ aen.control_port = bss_cfg->crypto.control_port;
+ aen.control_port_no_encrypt =
+ bss_cfg->crypto.control_port_no_encrypt;
+ aen.control_port_ethertype = cpu_to_le16(be16_to_cpu(
+ bss_cfg->crypto.control_port_ethertype));
+
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_CRYPTO, (u8 *)&aen,
+ sizeof(aen));
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ vif->bss_status |= QTNF_STATE_AP_CONFIG;
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif)
+{
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_STOP_AP,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ vif->bss_status &= ~QTNF_STATE_AP_START;
+ vif->bss_status &= ~QTNF_STATE_AP_CONFIG;
+
+ netif_carrier_off(vif->netdev);
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_mgmt_frame_register *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_REGISTER_MGMT,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_mgmt_frame_register *)cmd_skb->data;
+ cmd->frame_type = cpu_to_le16(frame_type);
+ cmd->do_register = reg;
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_mgmt_frame(struct qtnf_vif *vif, u32 cookie, u16 flags,
+ u16 freq, const u8 *buf, size_t len)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_mgmt_frame_tx *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ if (sizeof(*cmd) + len > QTNF_MAX_CMD_BUF_SIZE) {
+ pr_warn("frame is too big: %zu\n", len);
+ return -E2BIG;
+ }
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_SEND_MGMT_FRAME,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_mgmt_frame_tx *)cmd_skb->data;
+ cmd->cookie = cpu_to_le32(cookie);
+ cmd->freq = cpu_to_le16(freq);
+ cmd->flags = cpu_to_le16(flags);
+
+ if (len && buf)
+ qtnf_cmd_skb_put_buffer(cmd_skb, buf, len);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type,
+ const u8 *buf, size_t len)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_mgmt_append_ie *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ if (sizeof(*cmd) + len > QTNF_MAX_CMD_BUF_SIZE) {
+ pr_warn("frame is too big: %zu\n", len);
+ return -E2BIG;
+ }
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_MGMT_SET_APPIE,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_mgmt_append_ie *)cmd_skb->data;
+ cmd->type = frame_type;
+ cmd->flags = 0;
+
+ /* If len == 0 then IE buf for specified frame type
+ * should be cleared on EP.
+ */
+ if (len && buf)
+ qtnf_cmd_skb_put_buffer(cmd_skb, buf, len);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+static void
+qtnf_sta_info_parse_basic_counters(struct station_info *sinfo,
+ const struct qlink_sta_stat_basic_counters *counters)
+{
+ sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES) |
+ BIT(NL80211_STA_INFO_TX_BYTES);
+ sinfo->rx_bytes = get_unaligned_le64(&counters->rx_bytes);
+ sinfo->tx_bytes = get_unaligned_le64(&counters->tx_bytes);
+
+ sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS) |
+ BIT(NL80211_STA_INFO_TX_PACKETS) |
+ BIT(NL80211_STA_INFO_BEACON_RX);
+ sinfo->rx_packets = get_unaligned_le32(&counters->rx_packets);
+ sinfo->tx_packets = get_unaligned_le32(&counters->tx_packets);
+ sinfo->rx_beacon = get_unaligned_le64(&counters->rx_beacons);
+
+ sinfo->filled |= BIT(NL80211_STA_INFO_RX_DROP_MISC) |
+ BIT(NL80211_STA_INFO_TX_FAILED);
+ sinfo->rx_dropped_misc = get_unaligned_le32(&counters->rx_dropped);
+ sinfo->tx_failed = get_unaligned_le32(&counters->tx_failed);
+}
+
+static void
+qtnf_sta_info_parse_rate(struct rate_info *rate_dst,
+ const struct qlink_sta_info_rate *rate_src)
+{
+ rate_dst->legacy = get_unaligned_le16(&rate_src->rate) * 10;
+
+ rate_dst->mcs = rate_src->mcs;
+ rate_dst->nss = rate_src->nss;
+ rate_dst->flags = 0;
+
+ switch (rate_src->bw) {
+ case QLINK_STA_INFO_RATE_BW_5:
+ rate_dst->bw = RATE_INFO_BW_5;
+ break;
+ case QLINK_STA_INFO_RATE_BW_10:
+ rate_dst->bw = RATE_INFO_BW_10;
+ break;
+ case QLINK_STA_INFO_RATE_BW_20:
+ rate_dst->bw = RATE_INFO_BW_20;
+ break;
+ case QLINK_STA_INFO_RATE_BW_40:
+ rate_dst->bw = RATE_INFO_BW_40;
+ break;
+ case QLINK_STA_INFO_RATE_BW_80:
+ rate_dst->bw = RATE_INFO_BW_80;
+ break;
+ case QLINK_STA_INFO_RATE_BW_160:
+ rate_dst->bw = RATE_INFO_BW_160;
+ break;
+ default:
+ rate_dst->bw = 0;
+ break;
+ }
+
+ if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_HT_MCS)
+ rate_dst->flags |= RATE_INFO_FLAGS_MCS;
+ else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_VHT_MCS)
+ rate_dst->flags |= RATE_INFO_FLAGS_VHT_MCS;
+}
+
+static void
+qtnf_sta_info_parse_flags(struct nl80211_sta_flag_update *dst,
+ const struct qlink_sta_info_state *src)
+{
+ u32 mask, value;
+
+ dst->mask = 0;
+ dst->set = 0;
+
+ mask = le32_to_cpu(src->mask);
+ value = le32_to_cpu(src->value);
+
+ if (mask & QLINK_STA_FLAG_AUTHORIZED) {
+ dst->mask |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+ if (value & QLINK_STA_FLAG_AUTHORIZED)
+ dst->set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+ }
+
+ if (mask & QLINK_STA_FLAG_SHORT_PREAMBLE) {
+ dst->mask |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+ if (value & QLINK_STA_FLAG_SHORT_PREAMBLE)
+ dst->set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+ }
+
+ if (mask & QLINK_STA_FLAG_WME) {
+ dst->mask |= BIT(NL80211_STA_FLAG_WME);
+ if (value & QLINK_STA_FLAG_WME)
+ dst->set |= BIT(NL80211_STA_FLAG_WME);
+ }
+
+ if (mask & QLINK_STA_FLAG_MFP) {
+ dst->mask |= BIT(NL80211_STA_FLAG_MFP);
+ if (value & QLINK_STA_FLAG_MFP)
+ dst->set |= BIT(NL80211_STA_FLAG_MFP);
+ }
+
+ if (mask & QLINK_STA_FLAG_AUTHENTICATED) {
+ dst->mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
+ if (value & QLINK_STA_FLAG_AUTHENTICATED)
+ dst->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
+ }
+
+ if (mask & QLINK_STA_FLAG_TDLS_PEER) {
+ dst->mask |= BIT(NL80211_STA_FLAG_TDLS_PEER);
+ if (value & QLINK_STA_FLAG_TDLS_PEER)
+ dst->set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
+ }
+
+ if (mask & QLINK_STA_FLAG_ASSOCIATED) {
+ dst->mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+ if (value & QLINK_STA_FLAG_ASSOCIATED)
+ dst->set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+ }
+}
+
+static void
+qtnf_sta_info_parse_generic_info(struct station_info *sinfo,
+ const struct qlink_sta_info_generic *info)
+{
+ sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME) |
+ BIT(NL80211_STA_INFO_INACTIVE_TIME);
+ sinfo->connected_time = get_unaligned_le32(&info->connected_time);
+ sinfo->inactive_time = get_unaligned_le32(&info->inactive_time);
+
+ sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL) |
+ BIT(NL80211_STA_INFO_SIGNAL_AVG);
+ sinfo->signal = info->rssi - 120;
+ sinfo->signal_avg = info->rssi_avg - QLINK_RSSI_OFFSET;
+
+ if (info->rx_rate.rate) {
+ sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
+ qtnf_sta_info_parse_rate(&sinfo->rxrate, &info->rx_rate);
+ }
+
+ if (info->tx_rate.rate) {
+ sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
+ qtnf_sta_info_parse_rate(&sinfo->txrate, &info->tx_rate);
+ }
+
+ sinfo->filled |= BIT(NL80211_STA_INFO_STA_FLAGS);
+ qtnf_sta_info_parse_flags(&sinfo->sta_flags, &info->state);
+}
+
+static int qtnf_cmd_sta_info_parse(struct station_info *sinfo,
+ const u8 *payload, size_t payload_size)
+{
+ const struct qlink_sta_stat_basic_counters *counters;
+ const struct qlink_sta_info_generic *sta_info;
+ u16 tlv_type;
+ u16 tlv_value_len;
+ size_t tlv_full_len;
+ const struct qlink_tlv_hdr *tlv;
+
+ sinfo->filled = 0;
+
+ tlv = (const struct qlink_tlv_hdr *)payload;
+ while (payload_size >= sizeof(struct qlink_tlv_hdr)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_value_len = le16_to_cpu(tlv->len);
+ tlv_full_len = tlv_value_len + sizeof(struct qlink_tlv_hdr);
+ if (tlv_full_len > payload_size) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+ tlv_type, tlv_value_len);
+ return -EINVAL;
+ }
+ switch (tlv_type) {
+ case QTN_TLV_ID_STA_BASIC_COUNTERS:
+ if (unlikely(tlv_value_len < sizeof(*counters))) {
+ pr_err("invalid TLV size %.4X: %u\n",
+ tlv_type, tlv_value_len);
+ break;
+ }
+
+ counters = (void *)tlv->val;
+ qtnf_sta_info_parse_basic_counters(sinfo, counters);
+ break;
+ case QTN_TLV_ID_STA_GENERIC_INFO:
+ if (unlikely(tlv_value_len < sizeof(*sta_info)))
+ break;
+
+ sta_info = (void *)tlv->val;
+ qtnf_sta_info_parse_generic_info(sinfo, sta_info);
+ break;
+ default:
+ pr_warn("unexpected TLV type: %.4X\n", tlv_type);
+ break;
+ }
+ payload_size -= tlv_full_len;
+ tlv = (struct qlink_tlv_hdr *)(tlv->val + tlv_value_len);
+ }
+
+ if (payload_size) {
+ pr_warn("malformed IEs buf; bytes left: %zu\n", payload_size);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac,
+ struct station_info *sinfo)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ struct qlink_cmd_get_sta_info *cmd;
+ const struct qlink_resp_get_sta_info *resp;
+ size_t var_resp_len;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_GET_STA_INFO,
+ sizeof(*cmd));
+
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_get_sta_info *)cmd_skb->data;
+ ether_addr_copy(cmd->sta_addr, sta_mac);
+
+ ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb,
+ &res_code, sizeof(*resp),
+ &var_resp_len);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ switch (res_code) {
+ case QLINK_CMD_RESULT_ENOTFOUND:
+ pr_warn("STA %pM not found\n", sta_mac);
+ ret = -ENOENT;
+ break;
+ default:
+ pr_err("error returned: %u\n", res_code);
+ ret = -EFAULT;
+ break;
+ }
+ goto out;
+ }
+
+ resp = (const struct qlink_resp_get_sta_info *)resp_skb->data;
+
+ if (unlikely(!ether_addr_equal(sta_mac, resp->sta_addr))) {
+ pr_err("wrong mac in reply: %pM != %pM\n",
+ resp->sta_addr, sta_mac);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = qtnf_cmd_sta_info_parse(sinfo, resp->info, var_resp_len);
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+static int qtnf_cmd_send_add_change_intf(struct qtnf_vif *vif,
+ enum nl80211_iftype iftype,
+ u8 *mac_addr,
+ enum qlink_cmd_type cmd_type)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ struct qlink_cmd_manage_intf *cmd;
+ const struct qlink_resp_manage_intf *resp;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ cmd_type,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data;
+ cmd->action = cpu_to_le16(QLINK_CMD_ACTION_SET);
+
+ switch (iftype) {
+ case NL80211_IFTYPE_AP:
+ cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP);
+ break;
+ case NL80211_IFTYPE_STATION:
+ cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION);
+ break;
+ default:
+ pr_err("unsupported iftype %d\n", iftype);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (mac_addr)
+ ether_addr_copy(cmd->intf_info.mac_addr, mac_addr);
+ else
+ eth_zero_addr(cmd->intf_info.mac_addr);
+
+ ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb,
+ &res_code, sizeof(*resp), NULL);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ resp = (const struct qlink_resp_manage_intf *)resp_skb->data;
+ ether_addr_copy(vif->mac_addr, resp->intf_info.mac_addr);
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_send_add_intf(struct qtnf_vif *vif,
+ enum nl80211_iftype iftype, u8 *mac_addr)
+{
+ return qtnf_cmd_send_add_change_intf(vif, iftype, mac_addr,
+ QLINK_CMD_ADD_INTF);
+}
+
+int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif,
+ enum nl80211_iftype iftype, u8 *mac_addr)
+{
+ return qtnf_cmd_send_add_change_intf(vif, iftype, mac_addr,
+ QLINK_CMD_CHANGE_INTF);
+}
+
+int qtnf_cmd_send_del_intf(struct qtnf_vif *vif)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_manage_intf *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_DEL_INTF,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data;
+ cmd->action = cpu_to_le16(QLINK_CMD_ACTION_SET);
+
+ switch (vif->wdev.iftype) {
+ case NL80211_IFTYPE_AP:
+ cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP);
+ break;
+ case NL80211_IFTYPE_STATION:
+ cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION);
+ break;
+ default:
+ pr_warn("unsupported iftype %d\n", vif->wdev.iftype);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ eth_zero_addr(cmd->intf_info.mac_addr);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+static int
+qtnf_cmd_resp_proc_hw_info(struct qtnf_bus *bus,
+ const struct qlink_resp_get_hw_info *resp)
+{
+ struct qtnf_hw_info *hwinfo = &bus->hw_info;
+
+ hwinfo->num_mac = resp->num_mac;
+ hwinfo->mac_bitmap = resp->mac_bitmap;
+ hwinfo->fw_ver = le32_to_cpu(resp->fw_ver);
+ hwinfo->ql_proto_ver = le16_to_cpu(resp->ql_proto_ver);
+ memcpy(hwinfo->alpha2_code, resp->alpha2_code,
+ sizeof(hwinfo->alpha2_code));
+ hwinfo->total_tx_chain = resp->total_tx_chain;
+ hwinfo->total_rx_chain = resp->total_rx_chain;
+ hwinfo->hw_capab = le32_to_cpu(resp->hw_capab);
+
+ pr_info("fw_version=%d, MACs map %#x, alpha2=\"%c%c\", chains Tx=%u Rx=%u\n",
+ hwinfo->fw_ver, hwinfo->mac_bitmap,
+ hwinfo->alpha2_code[0], hwinfo->alpha2_code[1],
+ hwinfo->total_tx_chain, hwinfo->total_rx_chain);
+
+ return 0;
+}
+
+static int qtnf_parse_variable_mac_info(struct qtnf_wmac *mac,
+ const u8 *tlv_buf, size_t tlv_buf_size)
+{
+ struct ieee80211_iface_limit *limits = NULL;
+ const struct qlink_iface_limit *limit_record;
+ size_t record_count = 0, rec = 0;
+ u16 tlv_type, tlv_value_len, mask;
+ struct qlink_iface_comb_num *comb;
+ size_t tlv_full_len;
+ const struct qlink_tlv_hdr *tlv;
+
+ mac->macinfo.n_limits = 0;
+
+ tlv = (const struct qlink_tlv_hdr *)tlv_buf;
+ while (tlv_buf_size >= sizeof(struct qlink_tlv_hdr)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_value_len = le16_to_cpu(tlv->len);
+ tlv_full_len = tlv_value_len + sizeof(struct qlink_tlv_hdr);
+ if (tlv_full_len > tlv_buf_size) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+ tlv_type, tlv_value_len);
+ return -EINVAL;
+ }
+
+ switch (tlv_type) {
+ case QTN_TLV_ID_NUM_IFACE_COMB:
+ if (unlikely(tlv_value_len != sizeof(*comb)))
+ return -EINVAL;
+
+ comb = (void *)tlv->val;
+ record_count = le16_to_cpu(comb->iface_comb_num);
+
+ mac->macinfo.n_limits = record_count;
+ /* free earlier iface limits memory */
+ kfree(mac->macinfo.limits);
+ mac->macinfo.limits =
+ kzalloc(sizeof(*mac->macinfo.limits) *
+ record_count, GFP_KERNEL);
+
+ if (unlikely(!mac->macinfo.limits))
+ return -ENOMEM;
+
+ limits = mac->macinfo.limits;
+ pr_debug("iface limit record count=%zu\n",
+ record_count);
+ break;
+ case QTN_TLV_ID_IFACE_LIMIT:
+ if (unlikely(!limits)) {
+ pr_warn("limits yet not initialized\n");
+ return -EINVAL;
+ }
+ if (unlikely(tlv_value_len != sizeof(*limit_record))) {
+ pr_warn("record size mismatch\n");
+ return -EINVAL;
+ }
+
+ limit_record = (void *)tlv->val;
+ limits[rec].max = le16_to_cpu(limit_record->max_num);
+ mask = le16_to_cpu(limit_record->type_mask);
+ limits[rec].types = qlink_iface_type_mask_to_nl(mask);
+ /* only AP and STA modes are supported */
+ limits[rec].types &= BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_STATION);
+
+ pr_debug("MAX: %u; TYPES: %.4X\n",
+ limits[rec].max, limits[rec].types);
+
+ if (limits[rec].types)
+ rec++;
+ break;
+ default:
+ break;
+ }
+ tlv_buf_size -= tlv_full_len;
+ tlv = (struct qlink_tlv_hdr *)(tlv->val + tlv_value_len);
+ }
+ if (tlv_buf_size) {
+ pr_warn("malformed IEs buf; bytes left: %zu\n", tlv_buf_size);
+ return -EINVAL;
+ }
+
+ if (mac->macinfo.n_limits != rec) {
+ pr_err("iface combination mismatch: reported=%zu, parsed=%zu\n",
+ mac->macinfo.n_limits, rec);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void
+qtnf_cmd_resp_proc_mac_info(struct qtnf_wmac *mac,
+ const struct qlink_resp_get_mac_info *resp_info)
+{
+ struct qtnf_mac_info *mac_info;
+ struct qtnf_vif *vif;
+
+ mac_info = &mac->macinfo;
+
+ mac_info->bands_cap = resp_info->bands_cap;
+ mac_info->phymode_cap = resp_info->phymode_cap;
+ memcpy(&mac_info->dev_mac, &resp_info->dev_mac,
+ sizeof(mac_info->dev_mac));
+
+ ether_addr_copy(mac->macaddr, mac_info->dev_mac);
+
+ vif = qtnf_get_base_vif(mac);
+ if (vif)
+ ether_addr_copy(vif->mac_addr, mac->macaddr);
+ else
+ pr_err("could not get valid base vif\n");
+
+ mac_info->num_tx_chain = resp_info->num_tx_chain;
+ mac_info->num_rx_chain = resp_info->num_rx_chain;
+
+ mac_info->max_ap_assoc_sta = le16_to_cpu(resp_info->max_ap_assoc_sta);
+ mac_info->radar_detect_widths =
+ qlink_chan_width_mask_to_nl(le16_to_cpu(
+ resp_info->radar_detect_widths));
+
+ memcpy(&mac_info->ht_cap, &resp_info->ht_cap, sizeof(mac_info->ht_cap));
+ memcpy(&mac_info->vht_cap, &resp_info->vht_cap,
+ sizeof(mac_info->vht_cap));
+}
+
+static int
+qtnf_cmd_resp_fill_channels_info(struct ieee80211_supported_band *band,
+ struct qlink_resp_get_chan_info *resp,
+ size_t payload_len)
+{
+ u16 tlv_type;
+ size_t tlv_len;
+ const struct qlink_tlv_hdr *tlv;
+ const struct qlink_tlv_channel *qchan;
+ struct ieee80211_channel *chan;
+ unsigned int chidx = 0;
+ u32 qflags;
+
+ kfree(band->channels);
+ band->channels = NULL;
+
+ band->n_channels = resp->num_chans;
+ if (band->n_channels == 0)
+ return 0;
+
+ band->channels = kcalloc(band->n_channels, sizeof(*chan), GFP_KERNEL);
+ if (!band->channels) {
+ band->n_channels = 0;
+ return -ENOMEM;
+ }
+
+ tlv = (struct qlink_tlv_hdr *)resp->info;
+
+ while (payload_len >= sizeof(*tlv)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_len = le16_to_cpu(tlv->len) + sizeof(*tlv);
+
+ if (tlv_len > payload_len) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %zu\n",
+ tlv_type, tlv_len);
+ goto error_ret;
+ }
+
+ switch (tlv_type) {
+ case QTN_TLV_ID_CHANNEL:
+ if (unlikely(tlv_len != sizeof(*qchan))) {
+ pr_err("invalid channel TLV len %zu\n",
+ tlv_len);
+ goto error_ret;
+ }
+
+ if (chidx == band->n_channels) {
+ pr_err("too many channel TLVs\n");
+ goto error_ret;
+ }
+
+ qchan = (const struct qlink_tlv_channel *)tlv;
+ chan = &band->channels[chidx++];
+ qflags = le32_to_cpu(qchan->flags);
+
+ chan->hw_value = le16_to_cpu(qchan->hw_value);
+ chan->band = band->band;
+ chan->center_freq = le16_to_cpu(qchan->center_freq);
+ chan->max_antenna_gain = (int)qchan->max_antenna_gain;
+ chan->max_power = (int)qchan->max_power;
+ chan->max_reg_power = (int)qchan->max_reg_power;
+ chan->beacon_found = qchan->beacon_found;
+ chan->dfs_cac_ms = le32_to_cpu(qchan->dfs_cac_ms);
+ chan->flags = 0;
+
+ if (qflags & QLINK_CHAN_DISABLED)
+ chan->flags |= IEEE80211_CHAN_DISABLED;
+
+ if (qflags & QLINK_CHAN_NO_IR)
+ chan->flags |= IEEE80211_CHAN_NO_IR;
+
+ if (qflags & QLINK_CHAN_NO_HT40PLUS)
+ chan->flags |= IEEE80211_CHAN_NO_HT40PLUS;
+
+ if (qflags & QLINK_CHAN_NO_HT40MINUS)
+ chan->flags |= IEEE80211_CHAN_NO_HT40MINUS;
+
+ if (qflags & QLINK_CHAN_NO_OFDM)
+ chan->flags |= IEEE80211_CHAN_NO_OFDM;
+
+ if (qflags & QLINK_CHAN_NO_80MHZ)
+ chan->flags |= IEEE80211_CHAN_NO_80MHZ;
+
+ if (qflags & QLINK_CHAN_NO_160MHZ)
+ chan->flags |= IEEE80211_CHAN_NO_160MHZ;
+
+ if (qflags & QLINK_CHAN_INDOOR_ONLY)
+ chan->flags |= IEEE80211_CHAN_INDOOR_ONLY;
+
+ if (qflags & QLINK_CHAN_IR_CONCURRENT)
+ chan->flags |= IEEE80211_CHAN_IR_CONCURRENT;
+
+ if (qflags & QLINK_CHAN_NO_20MHZ)
+ chan->flags |= IEEE80211_CHAN_NO_20MHZ;
+
+ if (qflags & QLINK_CHAN_NO_10MHZ)
+ chan->flags |= IEEE80211_CHAN_NO_10MHZ;
+
+ if (qflags & QLINK_CHAN_RADAR) {
+ chan->flags |= IEEE80211_CHAN_RADAR;
+ chan->dfs_state_entered = jiffies;
+
+ if (qchan->dfs_state == QLINK_DFS_USABLE)
+ chan->dfs_state = NL80211_DFS_USABLE;
+ else if (qchan->dfs_state ==
+ QLINK_DFS_AVAILABLE)
+ chan->dfs_state = NL80211_DFS_AVAILABLE;
+ else
+ chan->dfs_state =
+ NL80211_DFS_UNAVAILABLE;
+ }
+
+ pr_debug("chan=%d flags=%#x max_pow=%d max_reg_pow=%d\n",
+ chan->hw_value, chan->flags, chan->max_power,
+ chan->max_reg_power);
+ break;
+ default:
+ pr_warn("unknown TLV type: %#x\n", tlv_type);
+ break;
+ }
+
+ payload_len -= tlv_len;
+ tlv = (struct qlink_tlv_hdr *)((u8 *)tlv + tlv_len);
+ }
+
+ if (payload_len) {
+ pr_err("malformed IEs buf; bytes left: %zu\n", payload_len);
+ goto error_ret;
+ }
+
+ if (band->n_channels != chidx) {
+ pr_err("channel count mismatch: reported=%d, parsed=%d\n",
+ band->n_channels, chidx);
+ goto error_ret;
+ }
+
+ return 0;
+
+error_ret:
+ kfree(band->channels);
+ band->channels = NULL;
+ band->n_channels = 0;
+
+ return -EINVAL;
+}
+
+static int qtnf_cmd_resp_proc_phy_params(struct qtnf_wmac *mac,
+ const u8 *payload, size_t payload_len)
+{
+ struct qtnf_mac_info *mac_info;
+ struct qlink_tlv_frag_rts_thr *phy_thr;
+ struct qlink_tlv_rlimit *limit;
+ struct qlink_tlv_cclass *class;
+ u16 tlv_type;
+ u16 tlv_value_len;
+ size_t tlv_full_len;
+ const struct qlink_tlv_hdr *tlv;
+
+ mac_info = &mac->macinfo;
+
+ tlv = (struct qlink_tlv_hdr *)payload;
+ while (payload_len >= sizeof(struct qlink_tlv_hdr)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_value_len = le16_to_cpu(tlv->len);
+ tlv_full_len = tlv_value_len + sizeof(struct qlink_tlv_hdr);
+ if (tlv_full_len > payload_len) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+ tlv_type, tlv_value_len);
+ return -EINVAL;
+ }
+ switch (tlv_type) {
+ case QTN_TLV_ID_FRAG_THRESH:
+ phy_thr = (void *)tlv;
+ mac_info->frag_thr = (u32)le16_to_cpu(phy_thr->thr);
+ break;
+ case QTN_TLV_ID_RTS_THRESH:
+ phy_thr = (void *)tlv;
+ mac_info->rts_thr = (u32)le16_to_cpu(phy_thr->thr);
+ break;
+ case QTN_TLV_ID_SRETRY_LIMIT:
+ limit = (void *)tlv;
+ mac_info->sretry_limit = limit->rlimit;
+ break;
+ case QTN_TLV_ID_LRETRY_LIMIT:
+ limit = (void *)tlv;
+ mac_info->lretry_limit = limit->rlimit;
+ break;
+ case QTN_TLV_ID_COVERAGE_CLASS:
+ class = (void *)tlv;
+ mac_info->coverage_class = class->cclass;
+ break;
+ default:
+ pr_err("Unknown TLV type: %#x\n",
+ le16_to_cpu(tlv->type));
+ break;
+ }
+ payload_len -= tlv_full_len;
+ tlv = (struct qlink_tlv_hdr *)(tlv->val + tlv_value_len);
+ }
+
+ if (payload_len) {
+ pr_warn("malformed IEs buf; bytes left: %zu\n", payload_len);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ const struct qlink_resp_get_mac_info *resp;
+ size_t var_data_len;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+ QLINK_CMD_MAC_INFO,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(mac->bus);
+
+ ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, &res_code,
+ sizeof(*resp), &var_data_len);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ resp = (const struct qlink_resp_get_mac_info *)resp_skb->data;
+ qtnf_cmd_resp_proc_mac_info(mac, resp);
+ ret = qtnf_parse_variable_mac_info(mac, resp->var_info, var_data_len);
+
+out:
+ qtnf_bus_unlock(mac->bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_get_hw_info(struct qtnf_bus *bus)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ const struct qlink_resp_get_hw_info *resp;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
+ QLINK_CMD_GET_HW_INFO,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(bus);
+
+ ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, &res_code,
+ sizeof(*resp), NULL);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ resp = (const struct qlink_resp_get_hw_info *)resp_skb->data;
+ ret = qtnf_cmd_resp_proc_hw_info(bus, resp);
+
+out:
+ qtnf_bus_unlock(bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_get_mac_chan_info(struct qtnf_wmac *mac,
+ struct ieee80211_supported_band *band)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ size_t info_len;
+ struct qlink_cmd_chans_info_get *cmd;
+ struct qlink_resp_get_chan_info *resp;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+ u8 qband;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+ QLINK_CMD_CHANS_INFO_GET,
+ sizeof(*cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
+ switch (band->band) {
+ case NL80211_BAND_2GHZ:
+ qband = QLINK_BAND_2GHZ;
+ break;
+ case NL80211_BAND_5GHZ:
+ qband = QLINK_BAND_5GHZ;
+ break;
+ case NL80211_BAND_60GHZ:
+ qband = QLINK_BAND_60GHZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ cmd = (struct qlink_cmd_chans_info_get *)cmd_skb->data;
+ cmd->band = qband;
+ ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, &res_code,
+ sizeof(*resp), &info_len);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ resp = (struct qlink_resp_get_chan_info *)resp_skb->data;
+ if (resp->band != qband) {
+ pr_err("reply band %u != cmd band %u\n", resp->band, qband);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = qtnf_cmd_resp_fill_channels_info(band, resp, info_len);
+
+out:
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_send_get_phy_params(struct qtnf_wmac *mac)
+{
+ struct sk_buff *cmd_skb, *resp_skb = NULL;
+ size_t response_size;
+ struct qlink_resp_phy_params *resp;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+ QLINK_CMD_PHY_PARAMS,
+ sizeof(struct qlink_cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
+ qtnf_bus_lock(mac->bus);
+
+ qtnf_cmd_skb_put_action(cmd_skb, QLINK_CMD_ACTION_GET);
+ ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, &res_code,
+ sizeof(*resp), &response_size);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+ resp = (struct qlink_resp_phy_params *)resp_skb->data;
+ ret = qtnf_cmd_resp_proc_phy_params(mac, resp->info, response_size);
+
+out:
+ qtnf_bus_unlock(mac->bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u16 cmd_action,
+ u32 changed)
+{
+ struct wiphy *wiphy = priv_to_wiphy(mac);
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+ QLINK_CMD_PHY_PARAMS,
+ sizeof(struct qlink_cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
+ qtnf_bus_lock(mac->bus);
+
+ qtnf_cmd_skb_put_action(cmd_skb, cmd_action);
+
+ if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
+ qtnf_cmd_skb_put_tlv_u16(cmd_skb, QTN_TLV_ID_FRAG_THRESH,
+ wiphy->frag_threshold);
+ if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+ qtnf_cmd_skb_put_tlv_u16(cmd_skb, QTN_TLV_ID_RTS_THRESH,
+ wiphy->rts_threshold);
+ if (changed & WIPHY_PARAM_COVERAGE_CLASS)
+ qtnf_cmd_skb_put_tlv_u8(cmd_skb, QTN_TLV_ID_COVERAGE_CLASS,
+ wiphy->coverage_class);
+
+ ret = qtnf_cmd_send(mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_init_fw(struct qtnf_bus *bus)
+{
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
+ QLINK_CMD_FW_INIT,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(bus);
+
+ ret = qtnf_cmd_send(bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(bus);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(qtnf_cmd_send_init_fw);
+
+int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+ const u8 *mac_addr, struct key_params *params)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_add_key *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_ADD_KEY,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_add_key *)cmd_skb->data;
+
+ if (mac_addr)
+ ether_addr_copy(cmd->addr, mac_addr);
+ else
+ eth_broadcast_addr(cmd->addr);
+
+ cmd->cipher = cpu_to_le32(params->cipher);
+ cmd->key_index = key_index;
+ cmd->pairwise = pairwise;
+
+ if (params->key && params->key_len > 0)
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_KEY,
+ params->key,
+ params->key_len);
+
+ if (params->seq && params->seq_len > 0)
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_SEQ,
+ params->seq,
+ params->seq_len);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+ const u8 *mac_addr)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_del_key *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_DEL_KEY,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_del_key *)cmd_skb->data;
+
+ if (mac_addr)
+ ether_addr_copy(cmd->addr, mac_addr);
+ else
+ eth_broadcast_addr(cmd->addr);
+
+ cmd->key_index = key_index;
+ cmd->pairwise = pairwise;
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index,
+ bool unicast, bool multicast)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_set_def_key *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_SET_DEFAULT_KEY,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_set_def_key *)cmd_skb->data;
+ cmd->key_index = key_index;
+ cmd->unicast = unicast;
+ cmd->multicast = multicast;
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_set_def_mgmt_key *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_SET_DEFAULT_MGMT_KEY,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_set_def_mgmt_key *)cmd_skb->data;
+ cmd->key_index = key_index;
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+static u32 qtnf_encode_sta_flags(u32 flags)
+{
+ u32 code = 0;
+
+ if (flags & BIT(NL80211_STA_FLAG_AUTHORIZED))
+ code |= QLINK_STA_FLAG_AUTHORIZED;
+ if (flags & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
+ code |= QLINK_STA_FLAG_SHORT_PREAMBLE;
+ if (flags & BIT(NL80211_STA_FLAG_WME))
+ code |= QLINK_STA_FLAG_WME;
+ if (flags & BIT(NL80211_STA_FLAG_MFP))
+ code |= QLINK_STA_FLAG_MFP;
+ if (flags & BIT(NL80211_STA_FLAG_AUTHENTICATED))
+ code |= QLINK_STA_FLAG_AUTHENTICATED;
+ if (flags & BIT(NL80211_STA_FLAG_TDLS_PEER))
+ code |= QLINK_STA_FLAG_TDLS_PEER;
+ if (flags & BIT(NL80211_STA_FLAG_ASSOCIATED))
+ code |= QLINK_STA_FLAG_ASSOCIATED;
+ return code;
+}
+
+int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac,
+ struct station_parameters *params)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_change_sta *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_CHANGE_STA,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_change_sta *)cmd_skb->data;
+ ether_addr_copy(cmd->sta_addr, mac);
+ cmd->sta_flags_mask = cpu_to_le32(qtnf_encode_sta_flags(
+ params->sta_flags_mask));
+ cmd->sta_flags_set = cpu_to_le32(qtnf_encode_sta_flags(
+ params->sta_flags_set));
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_del_sta(struct qtnf_vif *vif,
+ struct station_del_parameters *params)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_del_sta *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_DEL_STA,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_del_sta *)cmd_skb->data;
+
+ if (params->mac)
+ ether_addr_copy(cmd->sta_addr, params->mac);
+ else
+ eth_broadcast_addr(cmd->sta_addr); /* flush all stations */
+
+ cmd->subtype = params->subtype;
+ cmd->reason_code = cpu_to_le16(params->reason_code);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_scan(struct qtnf_wmac *mac)
+{
+ struct sk_buff *cmd_skb;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ struct ieee80211_channel *sc;
+ struct cfg80211_scan_request *scan_req = mac->scan_req;
+ struct qlink_tlv_channel *qchan;
+ int n_channels;
+ int count = 0;
+ int ret;
+ u32 flags;
+
+ if (scan_req->n_ssids > QTNF_MAX_SSID_LIST_LENGTH) {
+ pr_err("too many SSIDs in scan request\n");
+ return -EINVAL;
+ }
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+ QLINK_CMD_SCAN,
+ sizeof(struct qlink_cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(mac->bus);
+
+ if (scan_req->n_ssids != 0) {
+ while (count < scan_req->n_ssids) {
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID,
+ scan_req->ssids[count].ssid,
+ scan_req->ssids[count].ssid_len);
+ count++;
+ }
+ }
+
+ if (scan_req->ie_len != 0)
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_IE_SET,
+ scan_req->ie,
+ scan_req->ie_len);
+
+ if (scan_req->n_channels) {
+ n_channels = scan_req->n_channels;
+ count = 0;
+
+ while (n_channels != 0) {
+ sc = scan_req->channels[count];
+ if (sc->flags & IEEE80211_CHAN_DISABLED) {
+ n_channels--;
+ continue;
+ }
+
+ pr_debug("scan chan=%d, freq=%d, flags=%#x\n",
+ sc->hw_value, sc->center_freq, sc->flags);
+ qchan = (struct qlink_tlv_channel *)
+ skb_put(cmd_skb, sizeof(*qchan));
+ memset(qchan, 0, sizeof(*qchan));
+ flags = 0;
+
+ qchan->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANNEL);
+ qchan->hdr.len = cpu_to_le16(sizeof(*qchan) -
+ sizeof(struct qlink_tlv_hdr));
+ qchan->center_freq = cpu_to_le16(sc->center_freq);
+ qchan->hw_value = cpu_to_le16(sc->hw_value);
+
+ if (sc->flags & IEEE80211_CHAN_NO_IR)
+ flags |= QLINK_CHAN_NO_IR;
+
+ if (sc->flags & IEEE80211_CHAN_RADAR)
+ flags |= QLINK_CHAN_RADAR;
+
+ qchan->flags = cpu_to_le32(flags);
+ n_channels--;
+ count++;
+ }
+ }
+
+ ret = qtnf_cmd_send(mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ pr_debug("scan started on mac(%u)\n", mac->macid);
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ qtnf_bus_unlock(mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_connect(struct qtnf_vif *vif,
+ struct cfg80211_connect_params *sme)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_connect *cmd;
+ struct qtnf_bss_config *bss_cfg = &vif->bss_cfg;
+ struct qlink_auth_encr aen;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+ int i;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_CONNECT,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_connect *)cmd_skb->data;
+
+ ether_addr_copy(cmd->bssid, bss_cfg->bssid);
+
+ if (bss_cfg->chandef.chan)
+ cmd->freq = cpu_to_le16(bss_cfg->chandef.chan->center_freq);
+
+ cmd->bg_scan_period = cpu_to_le16(bss_cfg->bg_scan_period);
+
+ memset(&aen, 0, sizeof(aen));
+ aen.auth_type = bss_cfg->auth_type;
+ aen.privacy = !!bss_cfg->privacy;
+ aen.mfp = bss_cfg->mfp;
+ aen.wpa_versions = cpu_to_le32(bss_cfg->crypto.wpa_versions);
+ aen.cipher_group = cpu_to_le32(bss_cfg->crypto.cipher_group);
+ aen.n_ciphers_pairwise = cpu_to_le32(
+ bss_cfg->crypto.n_ciphers_pairwise);
+
+ for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++)
+ aen.ciphers_pairwise[i] = cpu_to_le32(
+ bss_cfg->crypto.ciphers_pairwise[i]);
+
+ aen.n_akm_suites = cpu_to_le32(bss_cfg->crypto.n_akm_suites);
+
+ for (i = 0; i < QLINK_MAX_NR_AKM_SUITES; i++)
+ aen.akm_suites[i] = cpu_to_le32(
+ bss_cfg->crypto.akm_suites[i]);
+
+ aen.control_port = bss_cfg->crypto.control_port;
+ aen.control_port_no_encrypt =
+ bss_cfg->crypto.control_port_no_encrypt;
+ aen.control_port_ethertype = cpu_to_le16(be16_to_cpu(
+ bss_cfg->crypto.control_port_ethertype));
+
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, bss_cfg->ssid,
+ bss_cfg->ssid_len);
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_CRYPTO, (u8 *)&aen,
+ sizeof(aen));
+
+ if (sme->ie_len != 0)
+ qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_IE_SET,
+ sme->ie,
+ sme->ie_len);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_disconnect(struct qtnf_vif *vif, u16 reason_code)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_disconnect *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_DISCONNECT,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ qtnf_bus_lock(vif->mac->bus);
+
+ cmd = (struct qlink_cmd_disconnect *)cmd_skb->data;
+ cmd->reason = cpu_to_le16(reason_code);
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ qtnf_bus_unlock(vif->mac->bus);
+ return ret;
+}
+
+int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, bool up)
+{
+ struct sk_buff *cmd_skb;
+ struct qlink_cmd_updown *cmd;
+ u16 res_code = QLINK_CMD_RESULT_OK;
+ int ret;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_UPDOWN_INTF,
+ sizeof(*cmd));
+ if (unlikely(!cmd_skb))
+ return -ENOMEM;
+
+ cmd = (struct qlink_cmd_updown *)cmd_skb->data;
+ cmd->if_up = !!up;
+
+ ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
+
+ if (unlikely(ret))
+ goto out;
+
+ if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
+ pr_err("cmd exec failed: 0x%.4X\n", res_code);
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ return ret;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.h b/drivers/net/wireless/quantenna/qtnfmac/commands.h
new file mode 100644
index 0000000..1467779
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2016 Quantenna Communications, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef QLINK_COMMANDS_H_
+#define QLINK_COMMANDS_H_
+
+#include <linux/nl80211.h>
+
+#include "core.h"
+#include "bus.h"
+
+int qtnf_cmd_send_init_fw(struct qtnf_bus *bus);
+int qtnf_cmd_get_hw_info(struct qtnf_bus *bus);
+int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac);
+int qtnf_cmd_send_add_intf(struct qtnf_vif *vif, enum nl80211_iftype iftype,
+ u8 *mac_addr);
+int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif,
+ enum nl80211_iftype iftype, u8 *mac_addr);
+int qtnf_cmd_send_del_intf(struct qtnf_vif *vif);
+int qtnf_cmd_get_mac_chan_info(struct qtnf_wmac *mac,
+ struct ieee80211_supported_band *band);
+int qtnf_cmd_send_regulatory_config(struct qtnf_wmac *mac, u16 action,
+ const char *alpha2);
+int qtnf_cmd_send_config_ap(struct qtnf_vif *vif);
+int qtnf_cmd_send_start_ap(struct qtnf_vif *vif);
+int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif);
+int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg);
+int qtnf_cmd_send_mgmt_frame(struct qtnf_vif *vif, u32 cookie, u16 flags,
+ u16 freq, const u8 *buf, size_t len);
+int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type,
+ const u8 *buf, size_t len);
+int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac,
+ struct station_info *sinfo);
+int qtnf_cmd_send_phy_params(struct qtnf_wmac *mac, u16 cmd_action,
+ void *data_buf);
+int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+ const u8 *mac_addr, struct key_params *params);
+int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+ const u8 *mac_addr);
+int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index,
+ bool unicast, bool multicast);
+int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index);
+int qtnf_cmd_send_add_sta(struct qtnf_vif *vif, const u8 *mac,
+ struct station_parameters *params);
+int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac,
+ struct station_parameters *params);
+int qtnf_cmd_send_del_sta(struct qtnf_vif *vif,
+ struct station_del_parameters *params);
+
+int qtnf_cmd_resp_parse(struct qtnf_bus *bus, struct sk_buff *resp_skb);
+int qtnf_cmd_resp_check(const struct qtnf_vif *vif,
+ const struct sk_buff *resp_skb, u16 cmd_id,
+ u16 *result, const u8 **payload, size_t *payload_size);
+int qtnf_cmd_send_scan(struct qtnf_wmac *mac);
+int qtnf_cmd_send_connect(struct qtnf_vif *vif,
+ struct cfg80211_connect_params *sme);
+int qtnf_cmd_send_disconnect(struct qtnf_vif *vif,
+ u16 reason_code);
+int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif,
+ bool up);
+
+#endif /* QLINK_COMMANDS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c
new file mode 100644
index 0000000..7669a00
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/if_vlan.h>
+#include <linux/if_ether.h>
+
+#include "core.h"
+#include "bus.h"
+
+#define QTNF_DMP_MAX_LEN 48
+
+struct qtnf_frame_meta_info {
+ u8 magic_s;
+ u8 ifidx;
+ u8 macid;
+ u8 magic_e;
+} __packed;
+
+static inline int qtnf_is_frame_meta_magic_valid(struct qtnf_frame_meta_info *m)
+{
+ return m->magic_s == 0xAB && m->magic_e == 0xBA;
+}
+
+struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid)
+{
+ struct qtnf_wmac *mac = NULL;
+
+ if (unlikely(macid >= QTNF_MAX_MAC)) {
+ pr_err("received invalid mac(%u)\n", macid);
+ return NULL;
+ }
+
+ mac = bus->mac[macid];
+
+ if (unlikely(!mac) || unlikely(!mac->mac_started)) {
+ pr_err("mac(%u) not initialized\n", macid);
+ return NULL;
+ }
+
+ return mac;
+}
+
+struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ struct qtnf_frame_meta_info *meta;
+ struct net_device *ndev = NULL;
+ struct qtnf_wmac *mac;
+ struct qtnf_vif *vif;
+
+ meta = (struct qtnf_frame_meta_info *)
+ (skb_tail_pointer(skb) - sizeof(*meta));
+
+ if (unlikely(!qtnf_is_frame_meta_magic_valid(meta))) {
+ pr_err_ratelimited("invalid magic 0x%x:0x%x\n",
+ meta->magic_s, meta->magic_e);
+ goto out;
+ }
+
+ if (unlikely(meta->macid >= QTNF_MAX_MAC)) {
+ pr_err_ratelimited("invalid mac(%u)\n", meta->macid);
+ goto out;
+ }
+
+ if (unlikely(meta->ifidx >= QTNF_MAX_INTF)) {
+ pr_err_ratelimited("invalid vif(%u)\n", meta->ifidx);
+ goto out;
+ }
+
+ mac = bus->mac[meta->macid];
+
+ if (unlikely(!mac)) {
+ pr_err_ratelimited("mac(%d) does not exist\n", meta->macid);
+ goto out;
+ }
+
+ vif = &mac->iflist[meta->ifidx];
+
+ if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) {
+ pr_err_ratelimited("vif(%u) does not exists\n", meta->ifidx);
+ goto out;
+ }
+
+ ndev = vif->netdev;
+
+ if (unlikely(!ndev)) {
+ pr_err_ratelimited("netdev for wlan%u.%u does not exists\n",
+ meta->macid, meta->ifidx);
+ goto out;
+ }
+
+ __skb_trim(skb, skb->len - sizeof(*meta));
+
+ pr_debug("packet received from mac/vif = %d/%d\n",
+ meta->macid, meta->ifidx);
+
+out:
+ return ndev;
+}
+EXPORT_SYMBOL_GPL(qtnf_classify_skb);
+
+/* Netdev handler for open.
+ */
+static int qtnf_netdev_open(struct net_device *ndev)
+{
+ netif_carrier_off(ndev);
+ qtnf_netdev_updown(ndev, 1);
+ return 0;
+}
+
+/* Netdev handler for close.
+ */
+static int qtnf_netdev_close(struct net_device *ndev)
+{
+ netif_carrier_off(ndev);
+ qtnf_virtual_intf_cleanup(ndev);
+ qtnf_netdev_updown(ndev, 0);
+ return 0;
+}
+
+/* Netdev handler for data transmission.
+ */
+static int
+qtnf_netdev_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+ struct qtnf_vif *vif;
+ struct qtnf_wmac *mac;
+
+ vif = qtnf_netdev_get_priv(ndev);
+
+ if (unlikely(skb->dev != ndev)) {
+ pr_err_ratelimited("invalid skb->dev");
+ dev_kfree_skb_any(skb);
+ return 0;
+ }
+
+ if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) {
+ pr_err_ratelimited("unsupported vif type (%d)\n",
+ vif->wdev.iftype);
+ dev_kfree_skb_any(skb);
+ return 0;
+ }
+
+ mac = vif->mac;
+ if (unlikely(!mac)) {
+ pr_err_ratelimited("NULL mac pointer");
+ dev_kfree_skb_any(skb);
+ return 0;
+ }
+
+ if (!skb->len || (skb->len > ETH_FRAME_LEN)) {
+ pr_err_ratelimited("invalid skb len %d\n", skb->len);
+ dev_kfree_skb_any(skb);
+ ndev->stats.tx_dropped++;
+ return 0;
+ }
+
+ /* tx path is enabled: reset vif timeout */
+ vif->cons_tx_timeout_cnt = 0;
+
+ return qtnf_bus_data_tx(mac->bus, skb);
+}
+
+/* Netdev handler for getting stats.
+ */
+static struct net_device_stats *qtnf_netdev_get_stats(struct net_device *dev)
+{
+ return &dev->stats;
+}
+
+/* Netdev handler for transmission timeout.
+ */
+static void qtnf_netdev_tx_timeout(struct net_device *ndev)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+ struct qtnf_wmac *mac;
+ struct qtnf_bus *bus;
+
+ if (unlikely(!vif || !vif->mac || !vif->mac->bus))
+ return;
+
+ mac = vif->mac;
+ bus = mac->bus;
+
+ pr_warn("Tx timeout- %lu, mac/vif = %d/%d\n",
+ jiffies, mac->macid, vif->vifid);
+
+ qtnf_bus_data_tx_timeout(bus, ndev);
+ ndev->stats.tx_errors++;
+
+ if (++vif->cons_tx_timeout_cnt > QTNF_TX_TIMEOUT_TRSHLD) {
+ pr_err("Tx timeout threshold exceeded !\n");
+ pr_err("schedule interface %s reset !\n", netdev_name(ndev));
+ queue_work(bus->workqueue, &vif->reset_work);
+ }
+}
+
+/* Network device ops handlers */
+const struct net_device_ops qtnf_netdev_ops = {
+ .ndo_open = qtnf_netdev_open,
+ .ndo_stop = qtnf_netdev_close,
+ .ndo_start_xmit = qtnf_netdev_hard_start_xmit,
+ .ndo_tx_timeout = qtnf_netdev_tx_timeout,
+ .ndo_get_stats = qtnf_netdev_get_stats,
+};
+
+static int __init qtnf_module_init(void)
+{
+ return 0;
+}
+
+static void __exit qtnf_module_exit(void)
+{
+}
+
+module_init(qtnf_module_init);
+module_exit(qtnf_module_exit);
+
+MODULE_AUTHOR("Quantenna Communications");
+MODULE_DESCRIPTION("Quantenna 802.11 wireless LAN FullMAC driver.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h
new file mode 100644
index 0000000..e95a947
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_CORE_H_
+#define _QTN_FMAC_CORE_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <net/sock.h>
+#include <net/lib80211.h>
+#include <net/cfg80211.h>
+#include <linux/vmalloc.h>
+#include <linux/firmware.h>
+#include <linux/ctype.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+
+#include "qlink.h"
+#include "trans.h"
+
+#undef pr_fmt
+#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
+
+#define QTNF_MAX_SSID_LIST_LENGTH 2
+#define QTNF_MAX_VSIE_LEN 255
+#define QTNF_MAX_ALPHA_LEN 2
+#define QTNF_MAX_INTF 8
+#define QTNF_MAX_EVENT_QUEUE_LEN 255
+#define QTNF_DEFAULT_BG_SCAN_PERIOD 300
+#define QTNF_MAX_BG_SCAN_PERIOD 0xffff
+
+#define QTNF_DEF_BSS_PRIORITY 0
+#define QTNF_DEF_WDOG_TIMEOUT 5
+#define QTNF_TX_TIMEOUT_TRSHLD 100
+
+#define QTNF_STATE_AP_CONFIG BIT(2)
+#define QTNF_STATE_AP_START BIT(1)
+
+extern const struct net_device_ops qtnf_netdev_ops;
+struct qtnf_bus;
+struct qtnf_vif;
+
+struct qtnf_bss_config {
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 bssid[ETH_ALEN];
+ size_t ssid_len;
+ u8 dtim;
+ u16 bcn_period;
+ u16 auth_type;
+ bool privacy;
+ enum nl80211_mfp mfp;
+ struct cfg80211_chan_def chandef;
+ struct cfg80211_crypto_settings crypto;
+ u16 bg_scan_period;
+ u32 connect_flags;
+};
+
+struct qtnf_sta_node {
+ struct list_head list;
+ u8 mac_addr[ETH_ALEN];
+};
+
+struct qtnf_sta_list {
+ struct list_head head;
+ atomic_t size;
+};
+
+enum qtnf_sta_state {
+ QTNF_STA_DISCONNECTED,
+ QTNF_STA_CONNECTING,
+ QTNF_STA_CONNECTED
+};
+
+struct qtnf_vif {
+ struct wireless_dev wdev;
+ u8 vifid;
+ u8 bss_priority;
+ u8 bss_status;
+ enum qtnf_sta_state sta_state;
+ u16 mgmt_frames_bitmask;
+ struct net_device *netdev;
+ struct qtnf_wmac *mac;
+ u8 mac_addr[ETH_ALEN];
+ struct work_struct reset_work;
+ struct qtnf_bss_config bss_cfg;
+ struct qtnf_sta_list sta_list;
+ unsigned long cons_tx_timeout_cnt;
+};
+
+struct qtnf_mac_info {
+ u8 bands_cap;
+ u8 phymode_cap;
+ u8 dev_mac[ETH_ALEN];
+ u8 num_tx_chain;
+ u8 num_rx_chain;
+ u16 max_ap_assoc_sta;
+ u32 frag_thr;
+ u32 rts_thr;
+ u8 lretry_limit;
+ u8 sretry_limit;
+ u8 coverage_class;
+ u8 radar_detect_widths;
+ struct ieee80211_ht_cap ht_cap;
+ struct ieee80211_vht_cap vht_cap;
+ struct ieee80211_iface_limit *limits;
+ size_t n_limits;
+};
+
+struct qtnf_wmac {
+ u8 macid;
+ u8 mac_started;
+ u8 wiphy_registered;
+ struct qtnf_bus *bus;
+ u8 macaddr[ETH_ALEN];
+ struct qtnf_mac_info macinfo;
+ struct qtnf_vif iflist[QTNF_MAX_INTF];
+ struct cfg80211_scan_request *scan_req;
+};
+
+struct qtnf_hw_info {
+ u8 num_mac;
+ u8 mac_bitmap;
+ u8 alpha2_code[QTNF_MAX_ALPHA_LEN];
+ u32 fw_ver;
+ u16 ql_proto_ver;
+ u8 total_tx_chain;
+ u8 total_rx_chain;
+ u32 hw_capab;
+};
+
+struct qtnf_vif *qtnf_get_free_vif(struct qtnf_wmac *mac);
+struct qtnf_vif *qtnf_get_base_vif(struct qtnf_wmac *mac);
+struct wiphy *qtnf_allocate_wiphy(struct qtnf_bus *bus);
+int qtnf_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
+ const char *name, unsigned char name_assign_type,
+ enum nl80211_iftype iftype);
+void qtnf_main_work_queue(struct work_struct *work);
+int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u16 cmd_action,
+ u32 changed);
+int qtnf_cmd_send_get_phy_params(struct qtnf_wmac *mac);
+
+struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid);
+struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb);
+struct net_device *qtnf_classify_skb_no_mbss(struct qtnf_bus *bus,
+ struct sk_buff *skb);
+
+void qtnf_virtual_intf_cleanup(struct net_device *ndev);
+
+void qtnf_netdev_updown(struct net_device *ndev, bool up);
+
+static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev)
+{
+ return (struct qtnf_vif *)(*(unsigned long *)netdev_priv(dev));
+}
+
+#endif /* _QTN_FMAC_CORE_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.c b/drivers/net/wireless/quantenna/qtnfmac/debug.c
new file mode 100644
index 0000000..9f826b9
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/debug.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "debug.h"
+
+#undef pr_fmt
+#define pr_fmt(fmt) "qtnfmac dbg: %s: " fmt, __func__
+
+void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name)
+{
+ bus->dbg_dir = debugfs_create_dir(name, NULL);
+
+ if (IS_ERR_OR_NULL(bus->dbg_dir)) {
+ pr_warn("failed to create debugfs root dir\n");
+ bus->dbg_dir = NULL;
+ }
+}
+
+void qtnf_debugfs_remove(struct qtnf_bus *bus)
+{
+ debugfs_remove_recursive(bus->dbg_dir);
+ bus->dbg_dir = NULL;
+}
+
+void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+ int (*fn)(struct seq_file *seq, void *data))
+{
+ struct dentry *entry;
+
+ entry = debugfs_create_devm_seqfile(bus->dev, name, bus->dbg_dir, fn);
+ if (IS_ERR_OR_NULL(entry))
+ pr_warn("failed to add entry (%s)\n", name);
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.h b/drivers/net/wireless/quantenna/qtnfmac/debug.h
new file mode 100644
index 0000000..d6dd12b5
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/debug.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_DEBUG_H_
+#define _QTN_FMAC_DEBUG_H_
+
+#include <linux/debugfs.h>
+
+#include "core.h"
+#include "bus.h"
+
+#ifdef CONFIG_DEBUG_FS
+
+void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name);
+void qtnf_debugfs_remove(struct qtnf_bus *bus);
+void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+ int (*fn)(struct seq_file *seq, void *data));
+
+#else
+
+static inline void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name)
+{
+}
+
+static inline void qtnf_debugfs_remove(struct qtnf_bus *bus)
+{
+}
+
+static inline void
+qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+ int (*fn)(struct seq_file *seq, void *data))
+{
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* _QTN_FMAC_DEBUG_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
new file mode 100644
index 0000000..7bbb0b8
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -0,0 +1,438 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "cfg80211.h"
+#include "core.h"
+#include "qlink.h"
+#include "bus.h"
+#include "trans.h"
+#include "util.h"
+#include "event.h"
+
+static int
+qtnf_event_handle_sta_assoc(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+ const struct qlink_event_sta_assoc *sta_assoc,
+ u16 len)
+{
+ const u8 *sta_addr;
+ u16 frame_control;
+ struct station_info sinfo = { 0 };
+ size_t payload_len;
+ u16 tlv_type;
+ u16 tlv_value_len;
+ size_t tlv_full_len;
+ const struct qlink_tlv_hdr *tlv;
+
+ if (unlikely(len < sizeof(*sta_assoc))) {
+ pr_err("payload is too short (%u < %zu)\n",
+ len, sizeof(*sta_assoc));
+ return -EINVAL;
+ }
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_AP) {
+ pr_err("STA_ASSOC event when not in AP mode\n");
+ return -EPROTO;
+ }
+
+ if (!(vif->bss_status & QTNF_STATE_AP_START)) {
+ pr_err("STA_ASSOC event when AP is not started\n");
+ return -EPROTO;
+ }
+
+ sta_addr = sta_assoc->sta_addr;
+ frame_control = le16_to_cpu(sta_assoc->frame_control);
+
+ pr_debug("MAC:%pM FC:%x\n", sta_addr, frame_control);
+
+ qtnf_sta_list_add(&vif->sta_list, sta_addr);
+
+ sinfo.assoc_req_ies = NULL;
+ sinfo.assoc_req_ies_len = 0;
+
+ payload_len = len - sizeof(*sta_assoc);
+ tlv = (struct qlink_tlv_hdr *)sta_assoc->ies;
+
+ while (payload_len >= sizeof(struct qlink_tlv_hdr)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_value_len = le16_to_cpu(tlv->len);
+ tlv_full_len = tlv_value_len + sizeof(struct qlink_tlv_hdr);
+
+ if (tlv_full_len > payload_len) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+ tlv_type, tlv_value_len);
+ return -EINVAL;
+ }
+
+ if (tlv_type == QTN_TLV_ID_IE_SET) {
+ sinfo.assoc_req_ies = tlv->val;
+ sinfo.assoc_req_ies_len = tlv_value_len;
+ }
+
+ payload_len -= tlv_full_len;
+ tlv = (struct qlink_tlv_hdr *)(tlv->val + tlv_value_len);
+ }
+
+ if (payload_len) {
+ pr_warn("malformed IEs buf; bytes left: %zu\n", payload_len);
+ return -EINVAL;
+ }
+
+ cfg80211_new_sta(vif->netdev, sta_assoc->sta_addr, &sinfo,
+ GFP_KERNEL);
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_sta_deauth(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+ const struct qlink_event_sta_deauth *sta_deauth,
+ u16 len)
+{
+ const u8 *sta_addr;
+ u16 reason;
+
+ if (unlikely(len < sizeof(*sta_deauth))) {
+ pr_err("payload is too short (%u < %zu)\n", len,
+ sizeof(struct qlink_event_sta_deauth));
+ return -EINVAL;
+ }
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_AP) {
+ pr_err("STA_DEAUTH event when not in AP mode\n");
+ return -EPROTO;
+ }
+
+ if (!(vif->bss_status & QTNF_STATE_AP_START)) {
+ pr_err("STA_DEAUTH event when AP is not started\n");
+ return -EPROTO;
+ }
+
+ sta_addr = sta_deauth->sta_addr;
+ reason = le16_to_cpu(sta_deauth->reason);
+
+ pr_debug("MAC:%pM; reason:%x\n", sta_addr, reason);
+
+ if (qtnf_sta_list_del(&vif->sta_list, sta_addr))
+ cfg80211_del_sta(vif->netdev, sta_deauth->sta_addr,
+ GFP_KERNEL);
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_bss_join(struct qtnf_vif *vif,
+ const struct qlink_event_bss_join *join_info,
+ u16 len)
+{
+ if (unlikely(len < sizeof(*join_info))) {
+ pr_err("payload is too short (%u < %zu)\n", len,
+ sizeof(struct qlink_event_bss_join));
+ return -EINVAL;
+ }
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+ pr_err("BSS_JOIN event when not in STA mode\n");
+ return -EPROTO;
+ }
+
+ if (vif->sta_state != QTNF_STA_CONNECTING) {
+ pr_err("BSS_JOIN event when STA is not connecting\n");
+ return -EPROTO;
+ }
+
+ pr_debug("BSSID:%pM\n", join_info->bssid);
+
+ cfg80211_connect_result(vif->netdev, join_info->bssid, NULL, 0, NULL,
+ 0, le16_to_cpu(join_info->status), GFP_KERNEL);
+
+ if (le16_to_cpu(join_info->status) == WLAN_STATUS_SUCCESS) {
+ vif->sta_state = QTNF_STA_CONNECTED;
+ netif_carrier_on(vif->netdev);
+ } else {
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+ }
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_bss_leave(struct qtnf_vif *vif,
+ const struct qlink_event_bss_leave *leave_info,
+ u16 len)
+{
+ if (unlikely(len < sizeof(*leave_info))) {
+ pr_err("payload is too short (%u < %zu)\n", len,
+ sizeof(struct qlink_event_bss_leave));
+ return -EINVAL;
+ }
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+ pr_err("BSS_LEAVE event when not in STA mode\n");
+ return -EPROTO;
+ }
+
+ if (vif->sta_state != QTNF_STA_CONNECTED) {
+ pr_err("BSS_LEAVE event when STA is not connected\n");
+ return -EPROTO;
+ }
+
+ pr_debug("disconnected\n");
+
+ cfg80211_disconnected(vif->netdev, leave_info->reason, NULL, 0, 0,
+ GFP_KERNEL);
+
+ vif->sta_state = QTNF_STA_DISCONNECTED;
+ netif_carrier_off(vif->netdev);
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_mgmt_received(struct qtnf_vif *vif,
+ const struct qlink_event_rxmgmt *rxmgmt,
+ u16 len)
+{
+ const size_t min_len = sizeof(*rxmgmt) +
+ sizeof(struct ieee80211_hdr_3addr);
+ const struct ieee80211_hdr_3addr *frame = (void *)rxmgmt->frame_data;
+ const u16 frame_len = len - sizeof(*rxmgmt);
+ enum nl80211_rxmgmt_flags flags = 0;
+
+ if (unlikely(len < min_len)) {
+ pr_err("payload is too short (%u < %zu)\n", len, min_len);
+ return -EINVAL;
+ }
+
+ if (le32_to_cpu(rxmgmt->flags) & QLINK_RXMGMT_FLAG_ANSWERED)
+ flags |= NL80211_RXMGMT_FLAG_ANSWERED;
+
+ pr_debug("%s LEN:%u FC:%.4X SA:%pM\n", vif->netdev->name, frame_len,
+ le16_to_cpu(frame->frame_control), frame->addr2);
+
+ cfg80211_rx_mgmt(&vif->wdev, le32_to_cpu(rxmgmt->freq),
+ le32_to_cpu(rxmgmt->sig_dbm), rxmgmt->frame_data,
+ frame_len, flags);
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_scan_results(struct qtnf_vif *vif,
+ const struct qlink_event_scan_result *sr,
+ u16 len)
+{
+ struct cfg80211_bss *bss;
+ struct ieee80211_channel *channel;
+ struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+ enum cfg80211_bss_frame_type frame_type;
+ size_t payload_len;
+ u16 tlv_type;
+ u16 tlv_value_len;
+ size_t tlv_full_len;
+ const struct qlink_tlv_hdr *tlv;
+
+ const u8 *ies = NULL;
+ size_t ies_len = 0;
+
+ if (len < sizeof(*sr)) {
+ pr_err("payload is too short\n");
+ return -EINVAL;
+ }
+
+ channel = ieee80211_get_channel(wiphy, le16_to_cpu(sr->freq));
+ if (!channel) {
+ pr_err("channel at %u MHz not found\n", le16_to_cpu(sr->freq));
+ return -EINVAL;
+ }
+
+ switch (sr->frame_type) {
+ case QLINK_BSS_FTYPE_BEACON:
+ frame_type = CFG80211_BSS_FTYPE_BEACON;
+ break;
+ case QLINK_BSS_FTYPE_PRESP:
+ frame_type = CFG80211_BSS_FTYPE_PRESP;
+ break;
+ default:
+ frame_type = CFG80211_BSS_FTYPE_UNKNOWN;
+ }
+
+ payload_len = len - sizeof(*sr);
+ tlv = (struct qlink_tlv_hdr *)sr->payload;
+
+ while (payload_len >= sizeof(struct qlink_tlv_hdr)) {
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_value_len = le16_to_cpu(tlv->len);
+ tlv_full_len = tlv_value_len + sizeof(struct qlink_tlv_hdr);
+
+ if (tlv_full_len > payload_len) {
+ pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+ tlv_type, tlv_value_len);
+ return -EINVAL;
+ }
+
+ if (tlv_type == QTN_TLV_ID_IE_SET) {
+ ies = tlv->val;
+ ies_len = tlv_value_len;
+ }
+
+ payload_len -= tlv_full_len;
+ tlv = (struct qlink_tlv_hdr *)(tlv->val + tlv_value_len);
+ }
+
+ if (payload_len) {
+ pr_warn("malformed IEs buf; bytes left: %zu\n", payload_len);
+ return -EINVAL;
+ }
+
+ bss = cfg80211_inform_bss(wiphy, channel, frame_type,
+ sr->bssid, get_unaligned_le64(&sr->tsf),
+ le16_to_cpu(sr->capab),
+ le16_to_cpu(sr->bintval), ies, ies_len,
+ sr->signal, GFP_KERNEL);
+ if (!bss)
+ return -ENOMEM;
+
+ cfg80211_put_bss(wiphy, bss);
+
+ return 0;
+}
+
+static int
+qtnf_event_handle_scan_complete(struct qtnf_wmac *mac,
+ const struct qlink_event_scan_complete *status,
+ u16 len)
+{
+ struct cfg80211_scan_info info = {};
+
+ if (len < sizeof(*status)) {
+ pr_err("payload is too short\n");
+ return -EINVAL;
+ }
+
+ if (!mac->scan_req)
+ return 0;
+
+ info.aborted = le32_to_cpu(status->flags) & QLINK_SCAN_ABORTED;
+ cfg80211_scan_done(mac->scan_req, &info);
+ mac->scan_req = NULL;
+
+ return 0;
+}
+
+static int qtnf_event_parse(struct qtnf_wmac *mac,
+ const struct sk_buff *event_skb)
+{
+ const struct qlink_event *event;
+ struct qtnf_vif *vif = NULL;
+ int ret = -1;
+ u16 event_id;
+ u16 event_len;
+
+ event = (const struct qlink_event *)event_skb->data;
+ event_id = le16_to_cpu(event->event_id);
+ event_len = le16_to_cpu(event->mhdr.len);
+
+ if (likely(event->vifid < QTNF_MAX_INTF)) {
+ vif = &mac->iflist[event->vifid];
+ } else {
+ pr_err("invalid vif(%u)\n", event->vifid);
+ return -EINVAL;
+ }
+
+ switch (event_id) {
+ case QLINK_EVENT_STA_ASSOCIATED:
+ ret = qtnf_event_handle_sta_assoc(mac, vif, (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_STA_DEAUTH:
+ ret = qtnf_event_handle_sta_deauth(mac, vif,
+ (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_MGMT_RECEIVED:
+ ret = qtnf_event_handle_mgmt_received(vif, (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_SCAN_RESULTS:
+ ret = qtnf_event_handle_scan_results(vif, (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_SCAN_COMPLETE:
+ ret = qtnf_event_handle_scan_complete(mac, (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_BSS_JOIN:
+ ret = qtnf_event_handle_bss_join(vif, (const void *)event,
+ event_len);
+ break;
+ case QLINK_EVENT_BSS_LEAVE:
+ ret = qtnf_event_handle_bss_leave(vif, (const void *)event,
+ event_len);
+ break;
+ default:
+ pr_warn("unknown event type: %x\n", event_id);
+ break;
+ }
+
+ return ret;
+}
+
+static int qtnf_event_process_skb(struct qtnf_bus *bus,
+ const struct sk_buff *skb)
+{
+ const struct qlink_event *event;
+ struct qtnf_wmac *mac;
+ int res;
+
+ if (unlikely(!skb || skb->len < sizeof(*event))) {
+ pr_err("invalid event buffer\n");
+ return -EINVAL;
+ }
+
+ event = (struct qlink_event *)skb->data;
+
+ mac = qtnf_core_get_mac(bus, event->macid);
+
+ pr_debug("new event id:%x len:%u mac:%u vif:%u\n",
+ le16_to_cpu(event->event_id), le16_to_cpu(event->mhdr.len),
+ event->macid, event->vifid);
+
+ if (unlikely(!mac))
+ return -ENXIO;
+
+ qtnf_bus_lock(bus);
+ res = qtnf_event_parse(mac, skb);
+ qtnf_bus_unlock(bus);
+
+ return res;
+}
+
+void qtnf_event_work_handler(struct work_struct *work)
+{
+ struct qtnf_bus *bus = container_of(work, struct qtnf_bus, event_work);
+ struct sk_buff_head *event_queue = &bus->trans.event_queue;
+ struct sk_buff *current_event_skb = skb_dequeue(event_queue);
+
+ while (current_event_skb) {
+ qtnf_event_process_skb(bus, current_event_skb);
+ dev_kfree_skb_any(current_event_skb);
+ current_event_skb = skb_dequeue(event_queue);
+ }
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.h b/drivers/net/wireless/quantenna/qtnfmac/event.h
new file mode 100644
index 0000000..ae759b6
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_EVENT_H_
+#define _QTN_FMAC_EVENT_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "qlink.h"
+
+void qtnf_event_work_handler(struct work_struct *work);
+
+#endif /* _QTN_FMAC_EVENT_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/init.c b/drivers/net/wireless/quantenna/qtnfmac/init.c
new file mode 100644
index 0000000..9feb095
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/init.c
@@ -0,0 +1,386 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/export.h>
+#include <net/mac80211.h>
+
+#include "core.h"
+#include "bus.h"
+#include "commands.h"
+#include "event.h"
+#include "cfg80211.h"
+#include "util.h"
+
+struct qtnf_vif *qtnf_get_free_vif(struct qtnf_wmac *mac)
+{
+ struct qtnf_vif *vif;
+ int i;
+
+ for (i = 0; i < QTNF_MAX_INTF; i++) {
+ vif = &mac->iflist[i];
+ if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+ return vif;
+ }
+
+ return NULL;
+}
+
+struct qtnf_vif *qtnf_get_base_vif(struct qtnf_wmac *mac)
+{
+ struct qtnf_vif *vif;
+
+ vif = &mac->iflist[0];
+
+ if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+ return NULL;
+
+ return vif;
+}
+
+static void qtnf_vif_reset_handler(struct work_struct *work)
+{
+ struct qtnf_vif *vif = container_of(work, struct qtnf_vif, reset_work);
+
+ rtnl_lock();
+ qtnf_virtual_intf_local_reset(vif->netdev);
+ rtnl_unlock();
+}
+
+static int qtnf_add_default_intf(struct qtnf_wmac *mac)
+{
+ struct qtnf_vif *vif;
+
+ vif = qtnf_get_free_vif(mac);
+ if (!vif) {
+ pr_err("could not get free vif structure\n");
+ return -EFAULT;
+ }
+
+ vif->wdev.iftype = NL80211_IFTYPE_AP;
+ vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
+ vif->wdev.wiphy = priv_to_wiphy(mac);
+ INIT_WORK(&vif->reset_work, qtnf_vif_reset_handler);
+ vif->cons_tx_timeout_cnt = 0;
+
+ return 0;
+}
+
+static struct qtnf_wmac *qtnf_mac_init(struct qtnf_bus *bus, int macid)
+{
+ struct wiphy *wiphy;
+ struct qtnf_wmac *mac;
+ unsigned int i;
+
+ wiphy = qtnf_allocate_wiphy(bus);
+ if (!wiphy)
+ return ERR_PTR(-ENOMEM);
+
+ mac = wiphy_priv(wiphy);
+
+ mac->macid = macid;
+ mac->bus = bus;
+
+ for (i = 0; i < QTNF_MAX_INTF; i++) {
+ memset(&mac->iflist[i], 0, sizeof(struct qtnf_vif));
+ mac->iflist[i].wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ mac->iflist[i].mac = mac;
+ mac->iflist[i].vifid = i;
+ qtnf_sta_list_init(&mac->iflist[i].sta_list);
+ }
+
+ if (qtnf_add_default_intf(mac)) {
+ pr_err("failed to create primary interface for mac(%d)\n",
+ macid);
+ wiphy_free(wiphy);
+ return NULL;
+ }
+
+ mac->mac_started = 1;
+ bus->mac[macid] = mac;
+ return mac;
+}
+
+static int qtnf_mac_init_single_band(struct wiphy *wiphy,
+ struct qtnf_wmac *mac,
+ enum nl80211_band band)
+{
+ int ret;
+
+ wiphy->bands[band] = kzalloc(sizeof(*wiphy->bands[band]), GFP_KERNEL);
+ if (!wiphy->bands[band])
+ return -ENOMEM;
+
+ wiphy->bands[band]->band = band;
+
+ ret = qtnf_cmd_get_mac_chan_info(mac, wiphy->bands[band]);
+ if (ret) {
+ pr_err("failed to get chans info for band %u\n",
+ band);
+ return ret;
+ }
+
+ qtnf_band_init_rates(wiphy->bands[band]);
+ qtnf_band_setup_htvht_caps(&mac->macinfo, wiphy->bands[band]);
+
+ return 0;
+}
+
+static int qtnf_mac_init_bands(struct qtnf_wmac *mac)
+{
+ struct wiphy *wiphy = priv_to_wiphy(mac);
+ int ret = 0;
+
+ if (mac->macinfo.bands_cap & QLINK_BAND_2GHZ) {
+ ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_2GHZ);
+ if (ret)
+ goto out;
+ }
+
+ if (mac->macinfo.bands_cap & QLINK_BAND_5GHZ) {
+ ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_5GHZ);
+ if (ret)
+ goto out;
+ }
+
+ if (mac->macinfo.bands_cap & QLINK_BAND_60GHZ)
+ ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_60GHZ);
+
+out:
+ return ret;
+}
+
+int qtnf_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+ const char *name, unsigned char name_assign_type,
+ enum nl80211_iftype iftype)
+{
+ struct wiphy *wiphy = priv_to_wiphy(mac);
+ struct net_device *dev;
+ void *qdev_vif;
+
+ dev = alloc_netdev_mqs(sizeof(struct qtnf_vif *), name,
+ name_assign_type, ether_setup, 1, 1);
+ if (!dev) {
+ pr_err("failed to allocate net_device\n");
+ memset(&vif->wdev, 0, sizeof(vif->wdev));
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ return -ENOMEM;
+ }
+
+ vif->netdev = dev;
+
+ dev->netdev_ops = &qtnf_netdev_ops;
+ dev->destructor = free_netdev;
+ dev_net_set(dev, wiphy_net(wiphy));
+ dev->ieee80211_ptr = &vif->wdev;
+ dev->ieee80211_ptr->iftype = iftype;
+ ether_addr_copy(dev->dev_addr, vif->mac_addr);
+ SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
+ dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
+ dev->watchdog_timeo = QTNF_DEF_WDOG_TIMEOUT;
+ dev->tx_queue_len = 100;
+
+ qdev_vif = netdev_priv(dev);
+ *((unsigned long *)qdev_vif) = (unsigned long)vif;
+
+ SET_NETDEV_DEV(dev, mac->bus->dev);
+
+ if (register_netdevice(dev)) {
+ pr_err("failed to register virtual network device\n");
+ free_netdev(dev);
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int qtnf_core_mac_init(struct qtnf_bus *bus, int macid)
+{
+ struct qtnf_wmac *mac;
+ struct qtnf_vif *vif;
+
+ pr_debug("starting mac(%d) init\n", macid);
+
+ if (!(bus->hw_info.mac_bitmap & BIT(macid))) {
+ pr_info("mac(%d) is not available for host operations\n",
+ macid);
+ return 0;
+ }
+
+ mac = qtnf_mac_init(bus, macid);
+ if (!mac) {
+ pr_err("failed to initialize mac(%d)\n", macid);
+ return -1;
+ }
+
+ if (qtnf_cmd_get_mac_info(mac)) {
+ pr_err("failed to get mac(%d) info\n", macid);
+ return -1;
+ }
+
+ vif = qtnf_get_base_vif(mac);
+ if (!vif) {
+ pr_err("could not get valid vif pointer\n");
+ return -1;
+ }
+
+ if (qtnf_cmd_send_add_intf(vif, NL80211_IFTYPE_AP, vif->mac_addr)) {
+ pr_err("could not add primary vif for mac(%d)\n", macid);
+ return -1;
+ }
+
+ if (qtnf_cmd_send_get_phy_params(mac)) {
+ pr_err("could not get phy thresholds for mac(%d)\n", macid);
+ return -1;
+ }
+
+ if (qtnf_mac_init_bands(mac)) {
+ pr_err("could not get channel info for mac(%d)\n", macid);
+ return -1;
+ }
+
+ if (qtnf_register_wiphy(bus, mac)) {
+ pr_err("wiphy registration failed for mac(%d)\n", macid);
+ return -1;
+ }
+
+ mac->wiphy_registered = 1;
+
+ /* add primary networking interface */
+ rtnl_lock();
+ if (qtnf_net_attach(mac, vif, "wlan%d", NET_NAME_ENUM,
+ NL80211_IFTYPE_AP)) {
+ pr_err("could not attach primary interface for mac(%d)\n",
+ macid);
+ vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+ vif->netdev = NULL;
+ rtnl_unlock();
+ return -1;
+ }
+ rtnl_unlock();
+
+ return 0;
+}
+
+int qtnf_core_attach(struct qtnf_bus *bus)
+{
+ int i;
+
+ qtnf_trans_init(bus);
+
+ bus->fw_state = QTNF_FW_STATE_BOOT_DONE;
+ qtnf_bus_data_rx_start(bus);
+
+ bus->workqueue = alloc_ordered_workqueue("QTNF_BUS", 0);
+ if (!bus->workqueue) {
+ pr_err("failed to alloc main workqueue\n");
+ return -1;
+ }
+
+ INIT_WORK(&bus->event_work, qtnf_event_work_handler);
+
+ if (qtnf_cmd_send_init_fw(bus)) {
+ pr_err("failed to send FW init commands\n");
+ return -1;
+ }
+
+ bus->fw_state = QTNF_FW_STATE_ACTIVE;
+
+ if (qtnf_cmd_get_hw_info(bus)) {
+ pr_err("failed to get HW info\n");
+ return -1;
+ }
+
+ if (bus->hw_info.ql_proto_ver != QLINK_PROTO_VER) {
+ pr_err("qlink protocol version mismatch\n");
+ return -1;
+ }
+
+ if (bus->hw_info.num_mac > QTNF_MAX_MAC) {
+ pr_err("FW reported invalid mac count: %d\n",
+ bus->hw_info.num_mac);
+ return -1;
+ }
+
+ for (i = 0; i < bus->hw_info.num_mac; i++) {
+ if (qtnf_core_mac_init(bus, i)) {
+ pr_err("mac(%d) init failed\n", i);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qtnf_core_attach);
+
+void qtnf_core_detach(struct qtnf_bus *bus)
+{
+ struct wiphy *wiphy;
+ struct qtnf_wmac *mac;
+ struct qtnf_vif *vif;
+ int i, cnt;
+ enum nl80211_band band;
+
+ for (cnt = 0; cnt < QTNF_MAX_MAC; cnt++) {
+ mac = bus->mac[cnt];
+
+ if (!mac || !mac->mac_started)
+ continue;
+
+ wiphy = priv_to_wiphy(mac);
+
+ for (i = 0; i < QTNF_MAX_INTF; i++) {
+ vif = &mac->iflist[i];
+ rtnl_lock();
+ if (vif->netdev &&
+ vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) {
+ qtnf_virtual_intf_cleanup(vif->netdev);
+ qtnf_del_virtual_intf(wiphy, &vif->wdev);
+ }
+ rtnl_unlock();
+ qtnf_sta_list_free(&vif->sta_list);
+ }
+
+ if (mac->wiphy_registered)
+ wiphy_unregister(wiphy);
+
+ for (band = NL80211_BAND_2GHZ;
+ band < NUM_NL80211_BANDS; ++band) {
+ if (!wiphy->bands[band])
+ continue;
+
+ kfree(wiphy->bands[band]->channels);
+ wiphy->bands[band]->n_channels = 0;
+
+ kfree(wiphy->bands[band]);
+ wiphy->bands[band] = NULL;
+ }
+
+ kfree(mac->macinfo.limits);
+ kfree(wiphy->iface_combinations);
+ wiphy_free(wiphy);
+ bus->mac[cnt] = NULL;
+ }
+
+ if (bus->workqueue) {
+ flush_workqueue(bus->workqueue);
+ destroy_workqueue(bus->workqueue);
+ }
+
+ qtnf_trans_free(bus);
+}
+EXPORT_SYMBOL_GPL(qtnf_core_detach);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
new file mode 100644
index 0000000..2b60e89
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
@@ -0,0 +1,1368 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/completion.h>
+#include <linux/crc32.h>
+#include <linux/spinlock.h>
+
+#include "qtn_hw_ids.h"
+#include "pcie_bus_priv.h"
+#include "core.h"
+#include "bus.h"
+#include "debug.h"
+
+static bool use_msi = true;
+module_param(use_msi, bool, 0644);
+MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt");
+
+static unsigned int tx_bd_size_param = 256;
+module_param(tx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size");
+
+static unsigned int rx_bd_size_param = 256;
+module_param(rx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(rx_bd_size_param, "Rx descriptors queue size");
+
+static unsigned int rx_bd_reserved_param = 16;
+module_param(rx_bd_reserved_param, uint, 0644);
+MODULE_PARM_DESC(rx_bd_reserved_param, "Reserved RX descriptors");
+
+#define DRV_NAME "qtnfmac_pearl_pcie"
+
+static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
+{
+ writel(val, basereg);
+
+ /* flush posted write */
+ readl(basereg);
+}
+
+static inline void qtnf_init_hdp_irqs(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ priv->pcie_irq_mask = (PCIE_HDP_INT_RX_BITS | PCIE_HDP_INT_TX_BITS);
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_enable_hdp_irqs(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ writel(priv->pcie_irq_mask, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_disable_hdp_irqs(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ writel(0x0, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_en_rxdone_irq(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ priv->pcie_irq_mask |= PCIE_HDP_INT_RX_BITS;
+ writel(priv->pcie_irq_mask, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_dis_rxdone_irq(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ priv->pcie_irq_mask &= ~PCIE_HDP_INT_RX_BITS;
+ writel(priv->pcie_irq_mask, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_en_txdone_irq(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ priv->pcie_irq_mask |= PCIE_HDP_INT_TX_BITS;
+ writel(priv->pcie_irq_mask, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static inline void qtnf_dis_txdone_irq(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->irq_lock, flags);
+ priv->pcie_irq_mask &= ~PCIE_HDP_INT_TX_BITS;
+ writel(priv->pcie_irq_mask, PCIE_HDP_INT_EN(priv->pcie_reg_base));
+ spin_unlock_irqrestore(&priv->irq_lock, flags);
+}
+
+static int qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv)
+{
+ struct pci_dev *pdev = priv->pdev;
+
+ /* fall back to legacy INTx interrupts by default */
+ priv->msi_enabled = 0;
+
+ /* check if MSI capability is available */
+ if (use_msi) {
+ if (!pci_enable_msi(pdev)) {
+ pr_debug("MSI interrupt enabled\n");
+ priv->msi_enabled = 1;
+ } else {
+ pr_warn("failed to enable MSI interrupts");
+ }
+ }
+
+ if (!priv->msi_enabled) {
+ pr_warn("legacy PCIE interrupts enabled\n");
+ pci_intx(pdev, 1);
+ }
+
+ return 0;
+}
+
+static void qtnf_deassert_intx(struct qtnf_pcie_bus_priv *priv)
+{
+ void __iomem *reg = priv->sysctl_bar + PEARL_PCIE_CFG0_OFFSET;
+ u32 cfg;
+
+ cfg = readl(reg);
+ cfg &= ~PEARL_ASSERT_INTX;
+ qtnf_non_posted_write(cfg, reg);
+}
+
+static void qtnf_ipc_gen_ep_int(void *arg)
+{
+ const struct qtnf_pcie_bus_priv *priv = arg;
+ const u32 data = QTN_PEARL_IPC_IRQ_WORD(QTN_PEARL_LHOST_IPC_IRQ);
+ void __iomem *reg = priv->sysctl_bar +
+ QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET;
+
+ qtnf_non_posted_write(data, reg);
+}
+
+static void __iomem *qtnf_map_bar(struct qtnf_pcie_bus_priv *priv, u8 index)
+{
+ void __iomem *vaddr;
+ dma_addr_t busaddr;
+ size_t len;
+ int ret;
+
+ ret = pcim_iomap_regions(priv->pdev, 1 << index, DRV_NAME);
+ if (ret)
+ return IOMEM_ERR_PTR(ret);
+
+ busaddr = pci_resource_start(priv->pdev, index);
+ vaddr = pcim_iomap_table(priv->pdev)[index];
+ len = pci_resource_len(priv->pdev, index);
+
+ pr_debug("BAR%u vaddr=0x%p busaddr=%pad len=%u\n",
+ index, vaddr, &busaddr, (int)len);
+
+ return vaddr;
+}
+
+static void qtnf_pcie_control_rx_callback(void *arg, const u8 *buf, size_t len)
+{
+ struct qtnf_pcie_bus_priv *priv = arg;
+ struct qtnf_bus *bus = pci_get_drvdata(priv->pdev);
+ struct sk_buff *skb;
+
+ if (unlikely(len == 0)) {
+ pr_warn("zero length packet received\n");
+ return;
+ }
+
+ skb = __dev_alloc_skb(len, GFP_KERNEL);
+
+ if (unlikely(!skb)) {
+ pr_err("failed to allocate skb\n");
+ return;
+ }
+
+ memcpy(skb_put(skb, len), buf, len);
+
+ qtnf_trans_handle_rx_ctl_packet(bus, skb);
+}
+
+static int qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv)
+{
+ struct qtnf_shm_ipc_region __iomem *ipc_tx_reg;
+ struct qtnf_shm_ipc_region __iomem *ipc_rx_reg;
+ const struct qtnf_shm_ipc_int ipc_int = { qtnf_ipc_gen_ep_int, priv };
+ const struct qtnf_shm_ipc_rx_callback rx_callback = {
+ qtnf_pcie_control_rx_callback, priv };
+
+ ipc_tx_reg = &priv->bda->bda_shm_reg1;
+ ipc_rx_reg = &priv->bda->bda_shm_reg2;
+
+ qtnf_shm_ipc_init(&priv->shm_ipc_ep_in, QTNF_SHM_IPC_OUTBOUND,
+ ipc_tx_reg, priv->workqueue,
+ &ipc_int, &rx_callback);
+ qtnf_shm_ipc_init(&priv->shm_ipc_ep_out, QTNF_SHM_IPC_INBOUND,
+ ipc_rx_reg, priv->workqueue,
+ &ipc_int, &rx_callback);
+
+ return 0;
+}
+
+static void qtnf_pcie_free_shm_ipc(struct qtnf_pcie_bus_priv *priv)
+{
+ qtnf_shm_ipc_free(&priv->shm_ipc_ep_in);
+ qtnf_shm_ipc_free(&priv->shm_ipc_ep_out);
+}
+
+static int qtnf_pcie_init_memory(struct qtnf_pcie_bus_priv *priv)
+{
+ int ret;
+
+ priv->sysctl_bar = qtnf_map_bar(priv, QTN_SYSCTL_BAR);
+ if (IS_ERR_OR_NULL(priv->sysctl_bar)) {
+ pr_err("failed to map BAR%u\n", QTN_SYSCTL_BAR);
+ return ret;
+ }
+
+ priv->dmareg_bar = qtnf_map_bar(priv, QTN_DMA_BAR);
+ if (IS_ERR_OR_NULL(priv->dmareg_bar)) {
+ pr_err("failed to map BAR%u\n", QTN_DMA_BAR);
+ return ret;
+ }
+
+ priv->epmem_bar = qtnf_map_bar(priv, QTN_SHMEM_BAR);
+ if (IS_ERR_OR_NULL(priv->epmem_bar)) {
+ pr_err("failed to map BAR%u\n", QTN_SHMEM_BAR);
+ return ret;
+ }
+
+ priv->pcie_reg_base = priv->dmareg_bar;
+ priv->bda = priv->epmem_bar;
+ writel(priv->msi_enabled, &priv->bda->bda_rc_msi_enabled);
+
+ return 0;
+}
+
+static int
+qtnf_pcie_init_dma_mask(struct qtnf_pcie_bus_priv *priv, u64 dma_mask)
+{
+ int ret;
+
+ ret = dma_supported(&priv->pdev->dev, dma_mask);
+ if (!ret) {
+ pr_err("DMA mask %llu not supported\n", dma_mask);
+ return ret;
+ }
+
+ ret = pci_set_dma_mask(priv->pdev, dma_mask);
+ if (ret) {
+ pr_err("failed to set DMA mask %llu\n", dma_mask);
+ return ret;
+ }
+
+ ret = pci_set_consistent_dma_mask(priv->pdev, dma_mask);
+ if (ret) {
+ pr_err("failed to set consistent DMA mask %llu\n", dma_mask);
+ return ret;
+ }
+
+ return ret;
+}
+
+static void qtnf_tune_pcie_mps(struct qtnf_pcie_bus_priv *priv)
+{
+ struct pci_dev *pdev = priv->pdev;
+ struct pci_dev *parent;
+ int mps_p, mps_o, mps_m, mps;
+ int ret;
+
+ /* current mps */
+ mps_o = pcie_get_mps(pdev);
+
+ /* maximum supported mps */
+ mps_m = 128 << pdev->pcie_mpss;
+
+ /* suggested new mps value */
+ mps = mps_m;
+
+ if (pdev->bus && pdev->bus->self) {
+ /* parent (bus) mps */
+ parent = pdev->bus->self;
+
+ if (pci_is_pcie(parent)) {
+ mps_p = pcie_get_mps(parent);
+ mps = min(mps_m, mps_p);
+ }
+ }
+
+ ret = pcie_set_mps(pdev, mps);
+ if (ret) {
+ pr_err("failed to set mps to %d, keep using current %d\n",
+ mps, mps_o);
+ priv->mps = mps_o;
+ return;
+ }
+
+ pr_debug("set mps to %d (was %d, max %d)\n", mps, mps_o, mps_m);
+ priv->mps = mps;
+}
+
+static int qtnf_is_state(__le32 __iomem *reg, u32 state)
+{
+ u32 s = readl(reg);
+
+ return s & state;
+}
+
+static void qtnf_set_state(__le32 __iomem *reg, u32 state)
+{
+ u32 s = readl(reg);
+
+ qtnf_non_posted_write(state | s, reg);
+}
+
+static void qtnf_clear_state(__le32 __iomem *reg, u32 state)
+{
+ u32 s = readl(reg);
+
+ qtnf_non_posted_write(s & ~state, reg);
+}
+
+static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms)
+{
+ u32 timeout = 0;
+
+ while ((qtnf_is_state(reg, state) == 0)) {
+ usleep_range(1000, 1200);
+ if (++timeout > delay_in_ms)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int alloc_skb_array(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long addr;
+ int len;
+
+ len = priv->tx_bd_num * sizeof(*priv->tx_skb) +
+ priv->rx_bd_num * sizeof(*priv->rx_skb);
+ addr = (unsigned long)devm_kzalloc(&priv->pdev->dev, len, GFP_KERNEL);
+
+ if (!addr)
+ return -ENOMEM;
+
+ priv->tx_skb = (struct sk_buff **)addr;
+
+ addr += priv->tx_bd_num * sizeof(*priv->tx_skb);
+ priv->rx_skb = (struct sk_buff **)addr;
+
+ return 0;
+}
+
+static int alloc_bd_table(struct qtnf_pcie_bus_priv *priv)
+{
+ unsigned long vaddr;
+ dma_addr_t paddr;
+ int len;
+
+ len = priv->tx_bd_num * sizeof(struct qtnf_tx_bd) +
+ priv->rx_bd_num * sizeof(struct qtnf_rx_bd);
+
+ vaddr = (unsigned long)dmam_alloc_coherent(&priv->pdev->dev,
+ len, &paddr, GFP_KERNEL);
+ if (!vaddr)
+ return -ENOMEM;
+
+ /* tx bd */
+
+ memset((void *)vaddr, 0, len);
+
+ priv->bd_table_vaddr = vaddr;
+ priv->bd_table_paddr = paddr;
+ priv->bd_table_len = len;
+
+ priv->tx_bd_vbase = (struct qtnf_tx_bd *)vaddr;
+ priv->tx_bd_pbase = paddr;
+
+ pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n",
+ (void *)vaddr, &paddr);
+
+ priv->tx_bd_reclaim_start = 0;
+ priv->tx_bd_index = 0;
+ priv->tx_queue_len = 0;
+
+ /* rx bd */
+
+ vaddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
+ paddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
+
+ priv->rx_bd_vbase = (struct qtnf_rx_bd *)vaddr;
+ priv->rx_bd_pbase = paddr;
+
+ writel(QTN_HOST_LO32(paddr),
+ PCIE_HDP_TX_HOST_Q_BASE_L(priv->pcie_reg_base));
+ writel(QTN_HOST_HI32(paddr),
+ PCIE_HDP_TX_HOST_Q_BASE_H(priv->pcie_reg_base));
+ writel(priv->rx_bd_num | (sizeof(struct qtnf_rx_bd)) << 16,
+ PCIE_HDP_TX_HOST_Q_SZ_CTRL(priv->pcie_reg_base));
+
+ priv->hw_txproc_wr_ptr = priv->rx_bd_num - rx_bd_reserved_param;
+
+ writel(priv->hw_txproc_wr_ptr,
+ PCIE_HDP_TX_HOST_Q_WR_PTR(priv->pcie_reg_base));
+
+ pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n",
+ (void *)vaddr, &paddr);
+
+ priv->rx_bd_index = 0;
+
+ return 0;
+}
+
+static int skb2rbd_attach(struct qtnf_pcie_bus_priv *priv, u16 rx_bd_index)
+{
+ struct qtnf_rx_bd *rxbd;
+ struct sk_buff *skb;
+ dma_addr_t paddr;
+
+ skb = __dev_alloc_skb(SKB_BUF_SIZE + NET_IP_ALIGN,
+ GFP_ATOMIC);
+ if (!skb) {
+ priv->rx_skb[rx_bd_index] = NULL;
+ return -ENOMEM;
+ }
+
+ priv->rx_skb[rx_bd_index] = skb;
+
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ rxbd = &priv->rx_bd_vbase[rx_bd_index];
+
+ paddr = pci_map_single(priv->pdev, skb->data,
+ SKB_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(priv->pdev, paddr)) {
+ pr_err("skb DMA mapping error: %pad\n", &paddr);
+ return -ENOMEM;
+ }
+
+ writel(QTN_HOST_LO32(paddr),
+ PCIE_HDP_HHBM_BUF_PTR(priv->pcie_reg_base));
+ writel(QTN_HOST_HI32(paddr),
+ PCIE_HDP_HHBM_BUF_PTR_H(priv->pcie_reg_base));
+
+ /* keep rx skb paddrs in rx buffer descriptors for cleanup purposes */
+ rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr));
+ rxbd->addr_h = cpu_to_le32(QTN_HOST_HI32(paddr));
+
+ rxbd->info = 0x0;
+
+ return 0;
+}
+
+static int alloc_rx_buffers(struct qtnf_pcie_bus_priv *priv)
+{
+ u16 i;
+ int ret = 0;
+
+ memset((void *)priv->rx_bd_vbase, 0x0,
+ priv->rx_bd_num * sizeof(struct qtnf_rx_bd));
+
+ for (i = 0; i < priv->rx_bd_num; i++) {
+ ret = skb2rbd_attach(priv, i);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+/* all rx/tx activity should have ceased before calling this function */
+static void free_xfer_buffers(void *data)
+{
+ struct qtnf_pcie_bus_priv *priv = (struct qtnf_pcie_bus_priv *)data;
+ struct qtnf_rx_bd *rxbd;
+ dma_addr_t paddr;
+ int i;
+
+ /* free rx buffers */
+ for (i = 0; i < priv->rx_bd_num; i++) {
+ if (priv->rx_skb[i]) {
+ rxbd = &priv->rx_bd_vbase[i];
+ paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h),
+ le32_to_cpu(rxbd->addr));
+ pci_unmap_single(priv->pdev, paddr, SKB_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ dev_kfree_skb_any(priv->rx_skb[i]);
+ }
+ }
+
+ /* free tx buffers */
+ for (i = 0; i < priv->tx_bd_num; i++) {
+ if (priv->tx_skb[i]) {
+ dev_kfree_skb_any(priv->tx_skb[i]);
+ priv->tx_skb[i] = NULL;
+ }
+ }
+}
+
+static int qtnf_pcie_init_xfer(struct qtnf_pcie_bus_priv *priv)
+{
+ int ret;
+
+ priv->tx_bd_num = tx_bd_size_param;
+ priv->rx_bd_num = rx_bd_size_param;
+
+ ret = alloc_skb_array(priv);
+ if (ret) {
+ pr_err("failed to allocate skb array\n");
+ return ret;
+ }
+
+ ret = alloc_bd_table(priv);
+ if (ret) {
+ pr_err("failed to allocate bd table\n");
+ return ret;
+ }
+
+ ret = alloc_rx_buffers(priv);
+ if (ret) {
+ pr_err("failed to allocate rx buffers\n");
+ return ret;
+ }
+
+ return ret;
+}
+
+static int qtnf_pcie_data_tx_reclaim(struct qtnf_pcie_bus_priv *priv)
+{
+ struct qtnf_tx_bd *txbd;
+ struct sk_buff *skb;
+ dma_addr_t paddr;
+ int last_sent;
+ int count;
+ int i;
+
+ last_sent = readl(PCIE_HDP_RX0DMA_CNT(priv->pcie_reg_base))
+ % priv->tx_bd_num;
+ i = priv->tx_bd_reclaim_start;
+ count = 0;
+
+ while (i != last_sent) {
+ skb = priv->tx_skb[i];
+ if (!skb)
+ break;
+
+ txbd = &priv->tx_bd_vbase[i];
+ paddr = QTN_HOST_ADDR(le32_to_cpu(txbd->addr_h),
+ le32_to_cpu(txbd->addr));
+ pci_unmap_single(priv->pdev, paddr, skb->len, PCI_DMA_TODEVICE);
+
+ if (skb->dev) {
+ skb->dev->stats.tx_packets++;
+ skb->dev->stats.tx_bytes += skb->len;
+
+ if (netif_queue_stopped(skb->dev))
+ netif_wake_queue(skb->dev);
+ }
+
+ dev_kfree_skb_any(skb);
+ priv->tx_skb[i] = NULL;
+ priv->tx_queue_len--;
+ count++;
+
+ if (++i >= priv->tx_bd_num)
+ i = 0;
+ }
+
+ priv->tx_bd_reclaim_start = i;
+ priv->tx_reclaim_done += count;
+ priv->tx_reclaim_req++;
+
+ return count;
+}
+
+static bool qtnf_tx_queue_ready(struct qtnf_pcie_bus_priv *priv)
+{
+ if (priv->tx_queue_len >= priv->tx_bd_num - 1) {
+ pr_err_ratelimited("reclaim full Tx queue\n");
+ qtnf_pcie_data_tx_reclaim(priv);
+
+ if (priv->tx_queue_len >= priv->tx_bd_num - 1) {
+ priv->tx_full_count++;
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+ dma_addr_t txbd_paddr, skb_paddr;
+ struct qtnf_tx_bd *txbd;
+ unsigned long flags;
+ int len, i;
+ u32 info;
+ int ret = 0;
+
+ spin_lock_irqsave(&priv->tx_lock, flags);
+
+ priv->tx_done_count++;
+
+ if (!qtnf_tx_queue_ready(priv)) {
+ if (skb->dev)
+ netif_stop_queue(skb->dev);
+
+ spin_unlock_irqrestore(&priv->tx_lock, flags);
+ return NETDEV_TX_BUSY;
+ }
+
+ i = priv->tx_bd_index;
+ priv->tx_skb[i] = skb;
+ len = skb->len;
+
+ skb_paddr = pci_map_single(priv->pdev, skb->data,
+ skb->len, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(priv->pdev, skb_paddr)) {
+ pr_err("skb DMA mapping error: %pad\n", &skb_paddr);
+ ret = -ENOMEM;
+ goto tx_done;
+ }
+
+ txbd = &priv->tx_bd_vbase[i];
+ txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr));
+ txbd->addr_h = cpu_to_le32(QTN_HOST_HI32(skb_paddr));
+
+ info = (len & QTN_PCIE_TX_DESC_LEN_MASK) << QTN_PCIE_TX_DESC_LEN_SHIFT;
+ txbd->info = cpu_to_le32(info);
+
+ /* sync up all descriptor updates before passing them to EP */
+ wmb();
+
+ /* write new TX descriptor to PCIE_RX_FIFO on EP */
+ txbd_paddr = priv->tx_bd_pbase + i * sizeof(struct qtnf_tx_bd);
+ writel(QTN_HOST_LO32(txbd_paddr),
+ PCIE_HDP_HOST_WR_DESC0(priv->pcie_reg_base));
+ writel(QTN_HOST_HI32(txbd_paddr),
+ PCIE_HDP_HOST_WR_DESC0_H(priv->pcie_reg_base));
+
+ if (++i >= priv->tx_bd_num)
+ i = 0;
+
+ priv->tx_bd_index = i;
+ priv->tx_queue_len++;
+
+tx_done:
+ if (ret && skb) {
+ pr_err_ratelimited("drop skb\n");
+ if (skb->dev)
+ skb->dev->stats.tx_dropped++;
+ dev_kfree_skb_any(skb);
+ }
+
+ spin_unlock_irqrestore(&priv->tx_lock, flags);
+
+ return NETDEV_TX_OK;
+}
+
+static int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+
+ return qtnf_shm_ipc_send(&priv->shm_ipc_ep_in, skb->data, skb->len);
+}
+
+static irqreturn_t qtnf_interrupt(int irq, void *data)
+{
+ struct qtnf_bus *bus = (struct qtnf_bus *)data;
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+ u32 status;
+
+ priv->pcie_irq_count++;
+ status = readl(PCIE_HDP_INT_STATUS(priv->pcie_reg_base));
+
+ qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
+ qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out);
+
+ if (!(status & priv->pcie_irq_mask))
+ goto irq_done;
+
+ if (status & PCIE_HDP_INT_RX_BITS) {
+ priv->pcie_irq_rx_count++;
+ qtnf_dis_rxdone_irq(priv);
+ napi_schedule(&bus->mux_napi);
+ }
+
+ if (status & PCIE_HDP_INT_TX_BITS) {
+ priv->pcie_irq_tx_count++;
+ qtnf_dis_txdone_irq(priv);
+ tasklet_hi_schedule(&priv->reclaim_tq);
+ }
+
+irq_done:
+ /* H/W workaround: clean all bits, not only enabled */
+ qtnf_non_posted_write(~0U, PCIE_HDP_INT_STATUS(priv->pcie_reg_base));
+
+ if (!priv->msi_enabled)
+ qtnf_deassert_intx(priv);
+
+ return IRQ_HANDLED;
+}
+
+static inline void hw_txproc_wr_ptr_inc(struct qtnf_pcie_bus_priv *priv)
+{
+ u32 index;
+
+ index = priv->hw_txproc_wr_ptr;
+
+ if (++index >= priv->rx_bd_num)
+ index = 0;
+
+ priv->hw_txproc_wr_ptr = index;
+}
+
+static int qtnf_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi);
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+ struct net_device *ndev = NULL;
+ struct sk_buff *skb = NULL;
+ int processed = 0;
+ struct qtnf_rx_bd *rxbd;
+ dma_addr_t skb_paddr;
+ u32 descw;
+ u16 index;
+ int ret;
+
+ index = priv->rx_bd_index;
+ rxbd = &priv->rx_bd_vbase[index];
+
+ descw = le32_to_cpu(rxbd->info);
+
+ while ((descw & QTN_TXDONE_MASK) && (processed < budget)) {
+ skb = priv->rx_skb[index];
+
+ if (likely(skb)) {
+ skb_put(skb, QTN_GET_LEN(descw));
+
+ skb_paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h),
+ le32_to_cpu(rxbd->addr));
+ pci_unmap_single(priv->pdev, skb_paddr, SKB_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ ndev = qtnf_classify_skb(bus, skb);
+ if (likely(ndev)) {
+ ndev->stats.rx_packets++;
+ ndev->stats.rx_bytes += skb->len;
+ ndev->last_rx = jiffies;
+
+ skb->protocol = eth_type_trans(skb, ndev);
+ netif_receive_skb(skb);
+ } else {
+ pr_debug("drop untagged skb\n");
+ bus->mux_dev.stats.rx_dropped++;
+ dev_kfree_skb_any(skb);
+ }
+
+ processed++;
+ } else {
+ pr_err("missing rx_skb[%d]\n", index);
+ }
+
+ /* attached rx buffer is passed upstream: map a new one */
+ ret = skb2rbd_attach(priv, index);
+ if (likely(!ret)) {
+ if (++index >= priv->rx_bd_num)
+ index = 0;
+
+ priv->rx_bd_index = index;
+ hw_txproc_wr_ptr_inc(priv);
+
+ rxbd = &priv->rx_bd_vbase[index];
+ descw = le32_to_cpu(rxbd->info);
+ } else {
+ pr_err("failed to allocate new rx_skb[%d]\n", index);
+ break;
+ }
+
+ writel(priv->hw_txproc_wr_ptr,
+ PCIE_HDP_TX_HOST_Q_WR_PTR(priv->pcie_reg_base));
+ }
+
+ if (processed < budget) {
+ napi_complete(napi);
+ qtnf_en_rxdone_irq(priv);
+ }
+
+ return processed;
+}
+
+static void
+qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+
+ tasklet_hi_schedule(&priv->reclaim_tq);
+}
+
+static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+
+ qtnf_enable_hdp_irqs(priv);
+ napi_enable(&bus->mux_napi);
+}
+
+static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+
+ napi_disable(&bus->mux_napi);
+ qtnf_disable_hdp_irqs(priv);
+}
+
+static struct qtnf_bus_ops qtnf_pcie_bus_ops = {
+ /* control path methods */
+ .control_tx = qtnf_pcie_control_tx,
+
+ /* data path methods */
+ .data_tx = qtnf_pcie_data_tx,
+ .data_tx_timeout = qtnf_pcie_data_tx_timeout,
+ .data_rx_start = qtnf_pcie_data_rx_start,
+ .data_rx_stop = qtnf_pcie_data_rx_stop,
+};
+
+static int qtnf_ep_fw_send(struct qtnf_pcie_bus_priv *priv, uint32_t size,
+ int blk, const u8 *pblk, const u8 *fw)
+{
+ struct pci_dev *pdev = priv->pdev;
+ struct qtnf_bus *bus = pci_get_drvdata(pdev);
+
+ struct qtnf_pcie_fw_hdr *hdr;
+ u8 *pdata;
+
+ int hds = sizeof(*hdr);
+ struct sk_buff *skb = NULL;
+ int len = 0;
+ int ret;
+
+ skb = __dev_alloc_skb(QTN_PCIE_FW_BUFSZ, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ skb->len = QTN_PCIE_FW_BUFSZ;
+ skb->dev = NULL;
+
+ hdr = (struct qtnf_pcie_fw_hdr *)skb->data;
+ memcpy(hdr->boardflg, QTN_PCIE_BOARDFLG, strlen(QTN_PCIE_BOARDFLG));
+ hdr->fwsize = cpu_to_le32(size);
+ hdr->seqnum = cpu_to_le32(blk);
+
+ if (blk)
+ hdr->type = cpu_to_le32(QTN_FW_DSUB);
+ else
+ hdr->type = cpu_to_le32(QTN_FW_DBEGIN);
+
+ pdata = skb->data + hds;
+
+ len = QTN_PCIE_FW_BUFSZ - hds;
+ if (pblk >= (fw + size - len)) {
+ len = fw + size - pblk;
+ hdr->type = cpu_to_le32(QTN_FW_DEND);
+ }
+
+ hdr->pktlen = cpu_to_le32(len);
+ memcpy(pdata, pblk, len);
+ hdr->crc = cpu_to_le32(~crc32(0, pdata, len));
+
+ ret = qtnf_pcie_data_tx(bus, skb);
+
+ return (ret == NETDEV_TX_OK) ? len : 0;
+}
+
+static int
+qtnf_ep_fw_load(struct qtnf_pcie_bus_priv *priv, const u8 *fw, u32 fw_size)
+{
+ int blk_size = QTN_PCIE_FW_BUFSZ - sizeof(struct qtnf_pcie_fw_hdr);
+ int blk_count = fw_size / blk_size + 1;
+ const u8 *pblk = fw;
+ int threshold = 0;
+ int blk = 0;
+ int len;
+
+ pr_debug("FW upload started: fw_addr=0x%p size=%d\n", fw, fw_size);
+
+ while (blk < blk_count) {
+ if (++threshold > 10000) {
+ pr_err("FW upload failed: too many retries\n");
+ return -ETIMEDOUT;
+ }
+
+ len = qtnf_ep_fw_send(priv, fw_size, blk, pblk, fw);
+ if (len <= 0)
+ continue;
+
+ if (!((blk + 1) & QTN_PCIE_FW_DLMASK) ||
+ (blk == (blk_count - 1))) {
+ qtnf_set_state(&priv->bda->bda_rc_state,
+ QTN_RC_FW_SYNC);
+ if (qtnf_poll_state(&priv->bda->bda_ep_state,
+ QTN_EP_FW_SYNC,
+ QTN_FW_DL_TIMEOUT_MS)) {
+ pr_err("FW upload failed: SYNC timed out\n");
+ return -ETIMEDOUT;
+ }
+
+ qtnf_clear_state(&priv->bda->bda_ep_state,
+ QTN_EP_FW_SYNC);
+
+ if (qtnf_is_state(&priv->bda->bda_ep_state,
+ QTN_EP_FW_RETRY)) {
+ if (blk == (blk_count - 1)) {
+ int last_round =
+ blk_count & QTN_PCIE_FW_DLMASK;
+ blk -= last_round;
+ pblk -= ((last_round - 1) *
+ blk_size + len);
+ } else {
+ blk -= QTN_PCIE_FW_DLMASK;
+ pblk -= QTN_PCIE_FW_DLMASK * blk_size;
+ }
+
+ qtnf_clear_state(&priv->bda->bda_ep_state,
+ QTN_EP_FW_RETRY);
+
+ pr_warn("FW upload retry: block #%d\n", blk);
+ continue;
+ }
+
+ qtnf_pcie_data_tx_reclaim(priv);
+ }
+
+ pblk += len;
+ blk++;
+ }
+
+ pr_debug("FW upload completed: totally sent %d blocks\n", blk);
+ return 0;
+}
+
+static void qtnf_firmware_load(const struct firmware *fw, void *context)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)context;
+ struct pci_dev *pdev = priv->pdev;
+ struct qtnf_bus *bus = pci_get_drvdata(pdev);
+ int ret;
+
+ if (!fw) {
+ pr_err("failed to get firmware %s\n", bus->fwname);
+ goto fw_load_err;
+ }
+
+ ret = qtnf_ep_fw_load(priv, fw->data, fw->size);
+ if (ret) {
+ pr_err("FW upload error\n");
+ goto fw_load_err;
+ }
+
+ if (qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_DONE,
+ QTN_FW_DL_TIMEOUT_MS)) {
+ pr_err("FW bringup timed out\n");
+ goto fw_load_err;
+ }
+
+ bus->fw_state = QTNF_FW_STATE_FW_DNLD_DONE;
+ pr_info("firmware is up and running\n");
+
+fw_load_err:
+
+ if (fw)
+ release_firmware(fw);
+
+ complete(&bus->request_firmware_complete);
+}
+
+static int qtnf_bringup_fw(struct qtnf_bus *bus)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
+ struct pci_dev *pdev = priv->pdev;
+ int ret;
+
+ qtnf_set_state(&priv->bda->bda_rc_state,
+ QTN_RC_FW_LOADRDY | QTN_RC_FW_QLINK);
+ if (qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_LOADRDY,
+ QTN_FW_DL_TIMEOUT_MS)) {
+ pr_err("card is not ready\n");
+ return -ETIMEDOUT;
+ }
+
+ pr_info("starting firmware upload: %s\n", bus->fwname);
+
+ qtnf_clear_state(&priv->bda->bda_ep_state, QTN_EP_FW_LOADRDY);
+
+ ret = request_firmware_nowait(THIS_MODULE, 1, bus->fwname, &pdev->dev,
+ GFP_KERNEL, priv, qtnf_firmware_load);
+ if (ret)
+ pr_err("request_firmware_nowait error %d\n", ret);
+
+ return ret;
+}
+
+static void qtnf_reclaim_tasklet_fn(unsigned long data)
+{
+ struct qtnf_pcie_bus_priv *priv = (void *)data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->tx_lock, flags);
+ qtnf_pcie_data_tx_reclaim(priv);
+ spin_unlock_irqrestore(&priv->tx_lock, flags);
+ qtnf_en_txdone_irq(priv);
+}
+
+static int qtnf_dbg_mps_show(struct seq_file *s, void *data)
+{
+ struct qtnf_bus *bus = dev_get_drvdata(s->private);
+ struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+ seq_printf(s, "%d\n", priv->mps);
+
+ return 0;
+}
+
+static int qtnf_dbg_msi_show(struct seq_file *s, void *data)
+{
+ struct qtnf_bus *bus = dev_get_drvdata(s->private);
+ struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+ seq_printf(s, "%u\n", priv->msi_enabled);
+
+ return 0;
+}
+
+static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
+{
+ struct qtnf_bus *bus = dev_get_drvdata(s->private);
+ struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+ seq_printf(s, "pcie_irq_count(%u)\n", priv->pcie_irq_count);
+ seq_printf(s, "pcie_irq_tx_count(%u)\n", priv->pcie_irq_tx_count);
+ seq_printf(s, "pcie_irq_rx_count(%u)\n", priv->pcie_irq_rx_count);
+
+ return 0;
+}
+
+static int qtnf_dbg_hdp_stats(struct seq_file *s, void *data)
+{
+ struct qtnf_bus *bus = dev_get_drvdata(s->private);
+ struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+ seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
+ seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
+ seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
+ seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
+ seq_printf(s, "tx_bd_reclaim_start(%u)\n", priv->tx_bd_reclaim_start);
+ seq_printf(s, "tx_bd_index(%u)\n", priv->tx_bd_index);
+ seq_printf(s, "rx_bd_index(%u)\n", priv->rx_bd_index);
+ seq_printf(s, "tx_queue_len(%u)\n", priv->tx_queue_len);
+
+ return 0;
+}
+
+static int qtnf_dbg_shm_stats(struct seq_file *s, void *data)
+{
+ struct qtnf_bus *bus = dev_get_drvdata(s->private);
+ struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+ seq_printf(s, "shm_ipc_ep_in.tx_packet_count(%zu)\n",
+ priv->shm_ipc_ep_in.tx_packet_count);
+ seq_printf(s, "shm_ipc_ep_in.rx_packet_count(%zu)\n",
+ priv->shm_ipc_ep_in.rx_packet_count);
+ seq_printf(s, "shm_ipc_ep_out.tx_packet_count(%zu)\n",
+ priv->shm_ipc_ep_out.tx_timeout_count);
+ seq_printf(s, "shm_ipc_ep_out.rx_packet_count(%zu)\n",
+ priv->shm_ipc_ep_out.rx_packet_count);
+
+ return 0;
+}
+
+static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct qtnf_pcie_bus_priv *pcie_priv;
+ struct qtnf_bus *bus;
+ int ret;
+
+ bus = devm_kzalloc(&pdev->dev,
+ sizeof(*bus) + sizeof(*pcie_priv), GFP_KERNEL);
+ if (!bus) {
+ ret = -ENOMEM;
+ goto err_init;
+ }
+
+ pcie_priv = get_bus_priv(bus);
+
+ pci_set_drvdata(pdev, bus);
+ bus->bus_ops = &qtnf_pcie_bus_ops;
+ bus->dev = &pdev->dev;
+ bus->fw_state = QTNF_FW_STATE_RESET;
+ pcie_priv->pdev = pdev;
+
+ strcpy(bus->fwname, QTN_PCI_PEARL_FW_NAME);
+ init_completion(&bus->request_firmware_complete);
+ mutex_init(&bus->bus_lock);
+ spin_lock_init(&pcie_priv->irq_lock);
+ spin_lock_init(&pcie_priv->tx_lock);
+
+ /* init stats */
+ pcie_priv->tx_full_count = 0;
+ pcie_priv->tx_done_count = 0;
+ pcie_priv->pcie_irq_count = 0;
+ pcie_priv->pcie_irq_rx_count = 0;
+ pcie_priv->pcie_irq_tx_count = 0;
+ pcie_priv->tx_reclaim_done = 0;
+ pcie_priv->tx_reclaim_req = 0;
+
+ pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PEARL_PCIE");
+ if (!pcie_priv->workqueue) {
+ pr_err("failed to alloc bus workqueue\n");
+ ret = -ENODEV;
+ goto err_priv;
+ }
+
+ if (!pci_is_pcie(pdev)) {
+ pr_err("device %s is not PCI Express\n", pci_name(pdev));
+ ret = -EIO;
+ goto err_base;
+ }
+
+ qtnf_tune_pcie_mps(pcie_priv);
+
+ ret = pcim_enable_device(pdev);
+ if (ret) {
+ pr_err("failed to init PCI device %x\n", pdev->device);
+ goto err_base;
+ } else {
+ pr_debug("successful init of PCI device %x\n", pdev->device);
+ }
+
+ pcim_pin_device(pdev);
+ pci_set_master(pdev);
+
+ ret = qtnf_pcie_init_irq(pcie_priv);
+ if (ret < 0) {
+ pr_err("irq init failed\n");
+ goto err_base;
+ }
+
+ ret = qtnf_pcie_init_memory(pcie_priv);
+ if (ret < 0) {
+ pr_err("PCIE memory init failed\n");
+ goto err_base;
+ }
+
+ ret = qtnf_pcie_init_shm_ipc(pcie_priv);
+ if (ret < 0) {
+ pr_err("PCIE SHM IPC init failed\n");
+ goto err_base;
+ }
+
+ ret = qtnf_pcie_init_dma_mask(pcie_priv, DMA_BIT_MASK(32));
+ if (ret) {
+ pr_err("PCIE DMA mask init failed\n");
+ goto err_base;
+ }
+
+ ret = devm_add_action(&pdev->dev, free_xfer_buffers, (void *)pcie_priv);
+ if (ret) {
+ pr_err("custom release callback init failed\n");
+ goto err_base;
+ }
+
+ ret = qtnf_pcie_init_xfer(pcie_priv);
+ if (ret) {
+ pr_err("PCIE xfer init failed\n");
+ goto err_base;
+ }
+
+ /* init default irq settings */
+ qtnf_init_hdp_irqs(pcie_priv);
+
+ /* start with disabled irqs */
+ qtnf_disable_hdp_irqs(pcie_priv);
+
+ ret = devm_request_irq(&pdev->dev, pdev->irq, &qtnf_interrupt, 0,
+ "qtnf_pcie_irq", (void *)bus);
+ if (ret) {
+ pr_err("failed to request pcie irq %d\n", pdev->irq);
+ goto err_base;
+ }
+
+ tasklet_init(&pcie_priv->reclaim_tq, qtnf_reclaim_tasklet_fn,
+ (unsigned long)pcie_priv);
+ init_dummy_netdev(&bus->mux_dev);
+ netif_napi_add(&bus->mux_dev, &bus->mux_napi,
+ qtnf_rx_poll, 10);
+
+ ret = qtnf_bringup_fw(bus);
+ if (ret) {
+ pr_err("failed to upload FW\n");
+ goto err_bringup_fw;
+ }
+
+ wait_for_completion(&bus->request_firmware_complete);
+ if (bus->fw_state != QTNF_FW_STATE_FW_DNLD_DONE) {
+ pr_err("failed to start FW\n");
+ goto err_bringup_fw;
+ }
+
+ if (qtnf_poll_state(&pcie_priv->bda->bda_ep_state, QTN_EP_FW_QLINK_DONE,
+ QTN_FW_QLINK_TIMEOUT_MS)) {
+ pr_err("FW runtime failure\n");
+ goto err_bringup_fw;
+ }
+
+ ret = qtnf_core_attach(bus);
+ if (ret) {
+ pr_err("failed to attach core\n");
+ goto err_core_attach;
+ }
+
+ qtnf_debugfs_init(bus, DRV_NAME);
+ qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show);
+ qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show);
+ qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats);
+ qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
+ qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats);
+
+ return 0;
+
+err_core_attach:
+ qtnf_core_detach(bus);
+ qtnf_pcie_data_rx_stop(bus);
+
+err_bringup_fw:
+ netif_napi_del(&bus->mux_napi);
+
+err_base:
+ flush_workqueue(pcie_priv->workqueue);
+ destroy_workqueue(pcie_priv->workqueue);
+
+err_priv:
+ pci_set_drvdata(pdev, NULL);
+
+err_init:
+ return ret;
+}
+
+static void qtnf_pcie_remove(struct pci_dev *pdev)
+{
+ struct qtnf_pcie_bus_priv *priv;
+ struct qtnf_bus *bus;
+
+ bus = pci_get_drvdata(pdev);
+ if (!bus)
+ return;
+
+ priv = get_bus_priv(bus);
+
+ qtnf_core_detach(bus);
+ qtnf_bus_data_rx_stop(bus);
+ netif_napi_del(&bus->mux_napi);
+
+ flush_workqueue(priv->workqueue);
+ destroy_workqueue(priv->workqueue);
+ tasklet_kill(&priv->reclaim_tq);
+
+ qtnf_debugfs_remove(bus);
+
+ qtnf_pcie_free_shm_ipc(priv);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_suspend(struct device *dev)
+{
+ return -EOPNOTSUPP;
+}
+
+static int qtnf_pcie_resume(struct device *dev)
+{
+ return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM_SLEEP
+/* Power Management Hooks */
+static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend,
+ qtnf_pcie_resume);
+#endif
+
+static struct pci_device_id qtnf_pcie_devid_table[] = {
+ {
+ PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QTN_PEARL,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ },
+ { },
+};
+
+MODULE_DEVICE_TABLE(pci, qtnf_pcie_devid_table);
+
+static struct pci_driver qtnf_pcie_drv_data = {
+ .name = DRV_NAME,
+ .id_table = qtnf_pcie_devid_table,
+ .probe = qtnf_pcie_probe,
+ .remove = qtnf_pcie_remove,
+#ifdef CONFIG_PM_SLEEP
+ .driver = {
+ .pm = &qtnf_pcie_pm_ops,
+ },
+#endif
+};
+
+static int __init qtnf_pcie_register(void)
+{
+ pr_info("register Quantenna QSR10g FullMAC PCIE driver\n");
+ return pci_register_driver(&qtnf_pcie_drv_data);
+}
+
+static void __exit qtnf_pcie_exit(void)
+{
+ pr_info("unregister Quantenna QSR10g FullMAC PCIE driver\n");
+ pci_unregister_driver(&qtnf_pcie_drv_data);
+}
+
+module_init(qtnf_pcie_register);
+module_exit(qtnf_pcie_exit);
+
+MODULE_AUTHOR("Quantenna Communications");
+MODULE_DESCRIPTION("Quantenna QSR10g PCIe bus driver for 802.11 wireless LAN.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
new file mode 100644
index 0000000..ecd3d54
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_PCIE_H_
+#define _QTN_FMAC_PCIE_H_
+
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+
+#include "pcie_regs_pearl.h"
+#include "pcie_ipc.h"
+#include "shm_ipc.h"
+
+struct bus;
+
+struct qtnf_pcie_bus_priv {
+ struct pci_dev *pdev;
+
+ /* lock for irq configuration changes */
+ spinlock_t irq_lock;
+
+ /* lock for tx operations */
+ spinlock_t tx_lock;
+ u8 msi_enabled;
+ int mps;
+
+ struct workqueue_struct *workqueue;
+ struct tasklet_struct reclaim_tq;
+
+ void __iomem *sysctl_bar;
+ void __iomem *epmem_bar;
+ void __iomem *dmareg_bar;
+
+ struct qtnf_shm_ipc shm_ipc_ep_in;
+ struct qtnf_shm_ipc shm_ipc_ep_out;
+
+ struct qtnf_pcie_bda __iomem *bda;
+ void __iomem *pcie_reg_base;
+
+ u16 tx_bd_num;
+ u16 rx_bd_num;
+
+ struct sk_buff **tx_skb;
+ struct sk_buff **rx_skb;
+
+ struct qtnf_tx_bd *tx_bd_vbase;
+ dma_addr_t tx_bd_pbase;
+
+ struct qtnf_rx_bd *rx_bd_vbase;
+ dma_addr_t rx_bd_pbase;
+
+ unsigned long bd_table_vaddr;
+ dma_addr_t bd_table_paddr;
+ u32 bd_table_len;
+
+ u32 hw_txproc_wr_ptr;
+
+ u16 tx_bd_reclaim_start;
+ u16 tx_bd_index;
+ u32 tx_queue_len;
+
+ u16 rx_bd_index;
+
+ u32 pcie_irq_mask;
+
+ /* diagnostics stats */
+ u32 pcie_irq_count;
+ u32 pcie_irq_rx_count;
+ u32 pcie_irq_tx_count;
+ u32 tx_full_count;
+ u32 tx_done_count;
+ u32 tx_reclaim_done;
+ u32 tx_reclaim_req;
+};
+
+#endif /* _QTN_FMAC_PCIE_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
new file mode 100644
index 0000000..3d219b1
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_PCIE_IPC_H_
+#define _QTN_FMAC_PCIE_IPC_H_
+
+#include <linux/types.h>
+
+#include "shm_ipc_defs.h"
+
+/* bitmap for EP status and flags: updated by EP, read by RC */
+#define QTN_EP_HAS_UBOOT BIT(0)
+#define QTN_EP_HAS_FIRMWARE BIT(1)
+#define QTN_EP_REQ_UBOOT BIT(2)
+#define QTN_EP_REQ_FIRMWARE BIT(3)
+#define QTN_EP_ERROR_UBOOT BIT(4)
+#define QTN_EP_ERROR_FIRMWARE BIT(5)
+
+#define QTN_EP_FW_LOADRDY BIT(8)
+#define QTN_EP_FW_SYNC BIT(9)
+#define QTN_EP_FW_RETRY BIT(10)
+#define QTN_EP_FW_QLINK_DONE BIT(15)
+#define QTN_EP_FW_DONE BIT(16)
+
+/* bitmap for RC status and flags: updated by RC, read by EP */
+#define QTN_RC_PCIE_LINK BIT(0)
+#define QTN_RC_NET_LINK BIT(1)
+#define QTN_RC_FW_QLINK BIT(7)
+#define QTN_RC_FW_LOADRDY BIT(8)
+#define QTN_RC_FW_SYNC BIT(9)
+
+/* state transition timeouts */
+#define QTN_FW_DL_TIMEOUT_MS 3000
+#define QTN_FW_QLINK_TIMEOUT_MS 20000
+
+#define PCIE_HDP_INT_RX_BITS (0 \
+ | PCIE_HDP_INT_EP_TXDMA \
+ | PCIE_HDP_INT_EP_TXEMPTY \
+ )
+
+#define PCIE_HDP_INT_TX_BITS (0 \
+ | PCIE_HDP_INT_EP_RXDMA \
+ )
+
+#if BITS_PER_LONG == 64
+#define QTN_HOST_HI32(a) ((u32)(((u64)a) >> 32))
+#define QTN_HOST_LO32(a) ((u32)(((u64)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l) ((((u64)h) << 32) | ((u64)l))
+#elif BITS_PER_LONG == 32
+#define QTN_HOST_HI32(a) 0
+#define QTN_HOST_LO32(a) ((u32)(((u32)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l) ((u32)l)
+#else
+#error Unexpected BITS_PER_LONG value
+#endif
+
+#define QTN_SYSCTL_BAR 0
+#define QTN_SHMEM_BAR 2
+#define QTN_DMA_BAR 3
+
+#define QTN_PCIE_BDA_VERSION 0x1002
+
+#define PCIE_BDA_NAMELEN 32
+#define PCIE_HHBM_MAX_SIZE 512
+
+#define SKB_BUF_SIZE 2048
+
+#define QTN_PCIE_BOARDFLG "PCIEQTN"
+#define QTN_PCIE_FW_DLMASK 0xF
+#define QTN_PCIE_FW_BUFSZ 2048
+
+#define QTN_ENET_ADDR_LENGTH 6
+
+#define QTN_TXDONE_MASK ((u32)0x80000000)
+#define QTN_GET_LEN(x) ((x) & 0xFFFF)
+
+#define QTN_PCIE_TX_DESC_LEN_MASK 0xFFFF
+#define QTN_PCIE_TX_DESC_LEN_SHIFT 0
+#define QTN_PCIE_TX_DESC_PORT_MASK 0xF
+#define QTN_PCIE_TX_DESC_PORT_SHIFT 16
+#define QTN_PCIE_TX_DESC_TQE_BIT BIT(24)
+
+#define QTN_EP_LHOST_TQE_PORT 4
+
+enum qtnf_pcie_bda_ipc_flags {
+ QTN_PCIE_IPC_FLAG_HBM_MAGIC = BIT(0),
+ QTN_PCIE_IPC_FLAG_SHM_PIO = BIT(1),
+};
+
+struct qtnf_pcie_bda {
+ __le16 bda_len;
+ __le16 bda_version;
+ __le32 bda_pci_endian;
+ __le32 bda_ep_state;
+ __le32 bda_rc_state;
+ __le32 bda_dma_mask;
+ __le32 bda_msi_addr;
+ __le32 bda_flashsz;
+ u8 bda_boardname[PCIE_BDA_NAMELEN];
+ __le32 bda_rc_msi_enabled;
+ __le32 bda_hhbm_list[PCIE_HHBM_MAX_SIZE];
+ __le32 bda_dsbw_start_index;
+ __le32 bda_dsbw_end_index;
+ __le32 bda_dsbw_total_bytes;
+ __le32 bda_rc_tx_bd_base;
+ __le32 bda_rc_tx_bd_num;
+ u8 bda_pcie_mac[QTN_ENET_ADDR_LENGTH];
+ struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096); /* host TX */
+ struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096); /* host RX */
+} __packed;
+
+struct qtnf_tx_bd {
+ __le32 addr;
+ __le32 addr_h;
+ __le32 info;
+ __le32 info_h;
+} __packed;
+
+struct qtnf_rx_bd {
+ __le32 addr;
+ __le32 addr_h;
+ __le32 info;
+ __le32 info_h;
+ __le32 next_ptr;
+ __le32 next_ptr_h;
+} __packed;
+
+enum qtnf_fw_loadtype {
+ QTN_FW_DBEGIN,
+ QTN_FW_DSUB,
+ QTN_FW_DEND,
+ QTN_FW_CTRL
+};
+
+struct qtnf_pcie_fw_hdr {
+ u8 boardflg[8];
+ __le32 fwsize;
+ __le32 seqnum;
+ __le32 type;
+ __le32 pktlen;
+ __le32 crc;
+} __packed;
+
+#endif /* _QTN_FMAC_PCIE_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
new file mode 100644
index 0000000..78715b8
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
@@ -0,0 +1,353 @@
+/*
+ * Copyright (c) 2015 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __PEARL_PCIE_H
+#define __PEARL_PCIE_H
+
+#define PCIE_GEN2_BASE (0xe9000000)
+#define PCIE_GEN3_BASE (0xe7000000)
+
+#define PEARL_CUR_PCIE_BASE (PCIE_GEN2_BASE)
+#define PCIE_HDP_OFFSET (0x2000)
+
+#define PCIE_HDP_CTRL(base) ((base) + 0x2c00)
+#define PCIE_HDP_AXI_CTRL(base) ((base) + 0x2c04)
+#define PCIE_HDP_HOST_WR_DESC0(base) ((base) + 0x2c10)
+#define PCIE_HDP_HOST_WR_DESC0_H(base) ((base) + 0x2c14)
+#define PCIE_HDP_HOST_WR_DESC1(base) ((base) + 0x2c18)
+#define PCIE_HDP_HOST_WR_DESC1_H(base) ((base) + 0x2c1c)
+#define PCIE_HDP_HOST_WR_DESC2(base) ((base) + 0x2c20)
+#define PCIE_HDP_HOST_WR_DESC2_H(base) ((base) + 0x2c24)
+#define PCIE_HDP_HOST_WR_DESC3(base) ((base) + 0x2c28)
+#define PCIE_HDP_HOST_WR_DESC4_H(base) ((base) + 0x2c2c)
+#define PCIE_HDP_RX_INT_CTRL(base) ((base) + 0x2c30)
+#define PCIE_HDP_TX_INT_CTRL(base) ((base) + 0x2c34)
+#define PCIE_HDP_INT_STATUS(base) ((base) + 0x2c38)
+#define PCIE_HDP_INT_EN(base) ((base) + 0x2c3c)
+#define PCIE_HDP_RX_DESC0_PTR(base) ((base) + 0x2c40)
+#define PCIE_HDP_RX_DESC0_NOE(base) ((base) + 0x2c44)
+#define PCIE_HDP_RX_DESC1_PTR(base) ((base) + 0x2c48)
+#define PCIE_HDP_RX_DESC1_NOE(base) ((base) + 0x2c4c)
+#define PCIE_HDP_RX_DESC2_PTR(base) ((base) + 0x2c50)
+#define PCIE_HDP_RX_DESC2_NOE(base) ((base) + 0x2c54)
+#define PCIE_HDP_RX_DESC3_PTR(base) ((base) + 0x2c58)
+#define PCIE_HDP_RX_DESC3_NOE(base) ((base) + 0x2c5c)
+
+#define PCIE_HDP_TX0_BASE_ADDR(base) ((base) + 0x2c60)
+#define PCIE_HDP_TX1_BASE_ADDR(base) ((base) + 0x2c64)
+#define PCIE_HDP_TX0_Q_CTRL(base) ((base) + 0x2c70)
+#define PCIE_HDP_TX1_Q_CTRL(base) ((base) + 0x2c74)
+#define PCIE_HDP_CFG0(base) ((base) + 0x2c80)
+#define PCIE_HDP_CFG1(base) ((base) + 0x2c84)
+#define PCIE_HDP_CFG2(base) ((base) + 0x2c88)
+#define PCIE_HDP_CFG3(base) ((base) + 0x2c8c)
+#define PCIE_HDP_CFG4(base) ((base) + 0x2c90)
+#define PCIE_HDP_CFG5(base) ((base) + 0x2c94)
+#define PCIE_HDP_CFG6(base) ((base) + 0x2c98)
+#define PCIE_HDP_CFG7(base) ((base) + 0x2c9c)
+#define PCIE_HDP_CFG8(base) ((base) + 0x2ca0)
+#define PCIE_HDP_CFG9(base) ((base) + 0x2ca4)
+#define PCIE_HDP_CFG10(base) ((base) + 0x2ca8)
+#define PCIE_HDP_CFG11(base) ((base) + 0x2cac)
+#define PCIE_INT(base) ((base) + 0x2cb0)
+#define PCIE_INT_MASK(base) ((base) + 0x2cb4)
+#define PCIE_MSI_MASK(base) ((base) + 0x2cb8)
+#define PCIE_MSI_PNDG(base) ((base) + 0x2cbc)
+#define PCIE_PRI_CFG(base) ((base) + 0x2cc0)
+#define PCIE_PHY_CR(base) ((base) + 0x2cc4)
+#define PCIE_HDP_CTAG_CTRL(base) ((base) + 0x2cf4)
+#define PCIE_HDP_HHBM_BUF_PTR(base) ((base) + 0x2d00)
+#define PCIE_HDP_HHBM_BUF_PTR_H(base) ((base) + 0x2d04)
+#define PCIE_HDP_HHBM_BUF_FIFO_NOE(base) ((base) + 0x2d04)
+#define PCIE_HDP_RX0DMA_CNT(base) ((base) + 0x2d10)
+#define PCIE_HDP_RX1DMA_CNT(base) ((base) + 0x2d14)
+#define PCIE_HDP_RX2DMA_CNT(base) ((base) + 0x2d18)
+#define PCIE_HDP_RX3DMA_CNT(base) ((base) + 0x2d1c)
+#define PCIE_HDP_TX0DMA_CNT(base) ((base) + 0x2d20)
+#define PCIE_HDP_TX1DMA_CNT(base) ((base) + 0x2d24)
+#define PCIE_HDP_RXDMA_CTRL(base) ((base) + 0x2d28)
+#define PCIE_HDP_TX_HOST_Q_SZ_CTRL(base) ((base) + 0x2d2c)
+#define PCIE_HDP_TX_HOST_Q_BASE_L(base) ((base) + 0x2d30)
+#define PCIE_HDP_TX_HOST_Q_BASE_H(base) ((base) + 0x2d34)
+#define PCIE_HDP_TX_HOST_Q_WR_PTR(base) ((base) + 0x2d38)
+#define PCIE_HDP_TX_HOST_Q_RD_PTR(base) ((base) + 0x2d3c)
+#define PCIE_HDP_TX_HOST_Q_STS(base) ((base) + 0x2d40)
+
+/* Host HBM pool registers */
+#define PCIE_HHBM_CSR_REG(base) ((base) + 0x2e00)
+#define PCIE_HHBM_Q_BASE_REG(base) ((base) + 0x2e04)
+#define PCIE_HHBM_Q_LIMIT_REG(base) ((base) + 0x2e08)
+#define PCIE_HHBM_Q_WR_REG(base) ((base) + 0x2e0c)
+#define PCIE_HHBM_Q_RD_REG(base) ((base) + 0x2e10)
+#define PCIE_HHBM_POOL_DATA_0_H(base) ((base) + 0x2e90)
+#define PCIE_HHBM_CONFIG(base) ((base) + 0x2f9c)
+#define PCIE_HHBM_POOL_REQ_0(base) ((base) + 0x2f10)
+#define PCIE_HHBM_POOL_DATA_0(base) ((base) + 0x2f40)
+#define PCIE_HHBM_WATERMARK_MASKED_INT(base) ((base) + 0x2f68)
+#define PCIE_HHBM_WATERMARK_INT(base) ((base) + 0x2f6c)
+#define PCIE_HHBM_POOL_WATERMARK(base) ((base) + 0x2f70)
+#define PCIE_HHBM_POOL_OVERFLOW_CNT(base) ((base) + 0x2f90)
+#define PCIE_HHBM_POOL_UNDERFLOW_CNT(base) ((base) + 0x2f94)
+#define HBM_INT_STATUS(base) ((base) + 0x2f9c)
+#define PCIE_HHBM_POOL_CNFIG(base) ((base) + 0x2f9c)
+
+/* host HBM bit field definition */
+#define HHBM_CONFIG_SOFT_RESET (BIT(8))
+#define HHBM_WR_REQ (BIT(0))
+#define HHBM_RD_REQ (BIT(1))
+#define HHBM_DONE (BIT(31))
+
+/* offsets for dual PCIE */
+#define PCIE_PORT_LINK_CTL(base) ((base) + 0x0710)
+#define PCIE_GEN2_CTL(base) ((base) + 0x080C)
+#define PCIE_GEN3_OFF(base) ((base) + 0x0890)
+#define PCIE_ATU_CTRL1(base) ((base) + 0x0904)
+#define PCIE_ATU_CTRL2(base) ((base) + 0x0908)
+#define PCIE_ATU_BASE_LOW(base) ((base) + 0x090C)
+#define PCIE_ATU_BASE_HIGH(base) ((base) + 0x0910)
+#define PCIE_ATU_BASE_LIMIT(base) ((base) + 0x0914)
+#define PCIE_ATU_TGT_LOW(base) ((base) + 0x0918)
+#define PCIE_ATU_TGT_HIGH(base) ((base) + 0x091C)
+#define PCIE_DMA_WR_ENABLE(base) ((base) + 0x097C)
+#define PCIE_DMA_WR_CHWTLOW(base) ((base) + 0x0988)
+#define PCIE_DMA_WR_CHWTHIG(base) ((base) + 0x098C)
+#define PCIE_DMA_WR_INTSTS(base) ((base) + 0x09BC)
+#define PCIE_DMA_WR_INTMASK(base) ((base) + 0x09C4)
+#define PCIE_DMA_WR_INTCLER(base) ((base) + 0x09C8)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_L(base) ((base) + 0x09D0)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_H(base) ((base) + 0x09D4)
+#define PCIE_DMA_WR_ABORT_IMWR_ADDR_L(base) ((base) + 0x09D8)
+#define PCIE_DMA_WR_ABORT_IMWR_ADDR_H(base) ((base) + 0x09DC)
+#define PCIE_DMA_WR_IMWR_DATA(base) ((base) + 0x09E0)
+#define PCIE_DMA_WR_LL_ERR_EN(base) ((base) + 0x0A00)
+#define PCIE_DMA_WR_DOORBELL(base) ((base) + 0x0980)
+#define PCIE_DMA_RD_ENABLE(base) ((base) + 0x099C)
+#define PCIE_DMA_RD_DOORBELL(base) ((base) + 0x09A0)
+#define PCIE_DMA_RD_CHWTLOW(base) ((base) + 0x09A8)
+#define PCIE_DMA_RD_CHWTHIG(base) ((base) + 0x09AC)
+#define PCIE_DMA_RD_INTSTS(base) ((base) + 0x0A10)
+#define PCIE_DMA_RD_INTMASK(base) ((base) + 0x0A18)
+#define PCIE_DMA_RD_INTCLER(base) ((base) + 0x0A1C)
+#define PCIE_DMA_RD_ERR_STS_L(base) ((base) + 0x0A24)
+#define PCIE_DMA_RD_ERR_STS_H(base) ((base) + 0x0A28)
+#define PCIE_DMA_RD_LL_ERR_EN(base) ((base) + 0x0A34)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_L(base) ((base) + 0x0A3C)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_H(base) ((base) + 0x0A40)
+#define PCIE_DMA_RD_ABORT_IMWR_ADDR_L(base) ((base) + 0x0A44)
+#define PCIE_DMA_RD_ABORT_IMWR_ADDR_H(base) ((base) + 0x0A48)
+#define PCIE_DMA_RD_IMWR_DATA(base) ((base) + 0x0A4C)
+#define PCIE_DMA_CHNL_CONTEXT(base) ((base) + 0x0A6C)
+#define PCIE_DMA_CHNL_CNTRL(base) ((base) + 0x0A70)
+#define PCIE_DMA_XFR_SIZE(base) ((base) + 0x0A78)
+#define PCIE_DMA_SAR_LOW(base) ((base) + 0x0A7C)
+#define PCIE_DMA_SAR_HIGH(base) ((base) + 0x0A80)
+#define PCIE_DMA_DAR_LOW(base) ((base) + 0x0A84)
+#define PCIE_DMA_DAR_HIGH(base) ((base) + 0x0A88)
+#define PCIE_DMA_LLPTR_LOW(base) ((base) + 0x0A8C)
+#define PCIE_DMA_LLPTR_HIGH(base) ((base) + 0x0A90)
+#define PCIE_DMA_WRLL_ERR_ENB(base) ((base) + 0x0A00)
+#define PCIE_DMA_RDLL_ERR_ENB(base) ((base) + 0x0A34)
+#define PCIE_DMABD_CHNL_CNTRL(base) ((base) + 0x8000)
+#define PCIE_DMABD_XFR_SIZE(base) ((base) + 0x8004)
+#define PCIE_DMABD_SAR_LOW(base) ((base) + 0x8008)
+#define PCIE_DMABD_SAR_HIGH(base) ((base) + 0x800c)
+#define PCIE_DMABD_DAR_LOW(base) ((base) + 0x8010)
+#define PCIE_DMABD_DAR_HIGH(base) ((base) + 0x8014)
+#define PCIE_DMABD_LLPTR_LOW(base) ((base) + 0x8018)
+#define PCIE_DMABD_LLPTR_HIGH(base) ((base) + 0x801c)
+#define PCIE_WRDMA0_CHNL_CNTRL(base) ((base) + 0x8000)
+#define PCIE_WRDMA0_XFR_SIZE(base) ((base) + 0x8004)
+#define PCIE_WRDMA0_SAR_LOW(base) ((base) + 0x8008)
+#define PCIE_WRDMA0_SAR_HIGH(base) ((base) + 0x800c)
+#define PCIE_WRDMA0_DAR_LOW(base) ((base) + 0x8010)
+#define PCIE_WRDMA0_DAR_HIGH(base) ((base) + 0x8014)
+#define PCIE_WRDMA0_LLPTR_LOW(base) ((base) + 0x8018)
+#define PCIE_WRDMA0_LLPTR_HIGH(base) ((base) + 0x801c)
+#define PCIE_WRDMA1_CHNL_CNTRL(base) ((base) + 0x8020)
+#define PCIE_WRDMA1_XFR_SIZE(base) ((base) + 0x8024)
+#define PCIE_WRDMA1_SAR_LOW(base) ((base) + 0x8028)
+#define PCIE_WRDMA1_SAR_HIGH(base) ((base) + 0x802c)
+#define PCIE_WRDMA1_DAR_LOW(base) ((base) + 0x8030)
+#define PCIE_WRDMA1_DAR_HIGH(base) ((base) + 0x8034)
+#define PCIE_WRDMA1_LLPTR_LOW(base) ((base) + 0x8038)
+#define PCIE_WRDMA1_LLPTR_HIGH(base) ((base) + 0x803c)
+#define PCIE_RDDMA0_CHNL_CNTRL(base) ((base) + 0x8040)
+#define PCIE_RDDMA0_XFR_SIZE(base) ((base) + 0x8044)
+#define PCIE_RDDMA0_SAR_LOW(base) ((base) + 0x8048)
+#define PCIE_RDDMA0_SAR_HIGH(base) ((base) + 0x804c)
+#define PCIE_RDDMA0_DAR_LOW(base) ((base) + 0x8050)
+#define PCIE_RDDMA0_DAR_HIGH(base) ((base) + 0x8054)
+#define PCIE_RDDMA0_LLPTR_LOW(base) ((base) + 0x8058)
+#define PCIE_RDDMA0_LLPTR_HIGH(base) ((base) + 0x805c)
+#define PCIE_RDDMA1_CHNL_CNTRL(base) ((base) + 0x8060)
+#define PCIE_RDDMA1_XFR_SIZE(base) ((base) + 0x8064)
+#define PCIE_RDDMA1_SAR_LOW(base) ((base) + 0x8068)
+#define PCIE_RDDMA1_SAR_HIGH(base) ((base) + 0x806c)
+#define PCIE_RDDMA1_DAR_LOW(base) ((base) + 0x8070)
+#define PCIE_RDDMA1_DAR_HIGH(base) ((base) + 0x8074)
+#define PCIE_RDDMA1_LLPTR_LOW(base) ((base) + 0x8078)
+#define PCIE_RDDMA1_LLPTR_HIGH(base) ((base) + 0x807c)
+
+#define PCIE_ID(base) ((base) + 0x0000)
+#define PCIE_CMD(base) ((base) + 0x0004)
+#define PCIE_BAR(base, n) ((base) + 0x0010 + ((n) << 2))
+#define PCIE_CAP_PTR(base) ((base) + 0x0034)
+#define PCIE_MSI_LBAR(base) ((base) + 0x0054)
+#define PCIE_MSI_CTRL(base) ((base) + 0x0050)
+#define PCIE_MSI_ADDR_L(base) ((base) + 0x0054)
+#define PCIE_MSI_ADDR_H(base) ((base) + 0x0058)
+#define PCIE_MSI_DATA(base) ((base) + 0x005C)
+#define PCIE_MSI_MASK_BIT(base) ((base) + 0x0060)
+#define PCIE_MSI_PEND_BIT(base) ((base) + 0x0064)
+#define PCIE_DEVCAP(base) ((base) + 0x0074)
+#define PCIE_DEVCTLSTS(base) ((base) + 0x0078)
+
+#define PCIE_CMDSTS(base) ((base) + 0x0004)
+#define PCIE_LINK_STAT(base) ((base) + 0x80)
+#define PCIE_LINK_CTL2(base) ((base) + 0xa0)
+#define PCIE_ASPM_L1_CTRL(base) ((base) + 0x70c)
+#define PCIE_ASPM_LINK_CTRL(base) (PCIE_LINK_STAT)
+#define PCIE_ASPM_L1_SUBSTATE_TIMING(base) ((base) + 0xB44)
+#define PCIE_L1SUB_CTRL1(base) ((base) + 0x150)
+#define PCIE_PMCSR(base) ((base) + 0x44)
+#define PCIE_CFG_SPACE_LIMIT(base) ((base) + 0x100)
+
+/* PCIe link defines */
+#define PEARL_PCIE_LINKUP (0x7)
+#define PEARL_PCIE_DATA_LINK (BIT(0))
+#define PEARL_PCIE_PHY_LINK (BIT(1))
+#define PEARL_PCIE_LINK_RST (BIT(3))
+#define PEARL_PCIE_FATAL_ERR (BIT(5))
+#define PEARL_PCIE_NONFATAL_ERR (BIT(6))
+
+/* PCIe Lane defines */
+#define PCIE_G2_LANE_X1 ((BIT(0)) << 16)
+#define PCIE_G2_LANE_X2 ((BIT(0) | BIT(1)) << 16)
+
+/* PCIe DLL link enable */
+#define PCIE_DLL_LINK_EN ((BIT(0)) << 5)
+
+#define PCIE_LINK_GEN1 (BIT(0))
+#define PCIE_LINK_GEN2 (BIT(1))
+#define PCIE_LINK_GEN3 (BIT(2))
+#define PCIE_LINK_MODE(x) (((x) >> 16) & 0x7)
+
+#define MSI_EN (BIT(0))
+#define MSI_64_EN (BIT(7))
+#define PCIE_MSI_ADDR_OFFSET(a) ((a) & 0xFFFF)
+#define PCIE_MSI_ADDR_ALIGN(a) ((a) & (~0xFFFF))
+
+#define PCIE_BAR_MASK(base, n) ((base) + 0x1010 + ((n) << 2))
+#define PCIE_MAX_BAR (6)
+
+#define PCIE_ATU_VIEW(base) ((base) + 0x0900)
+#define PCIE_ATU_CTL1(base) ((base) + 0x0904)
+#define PCIE_ATU_CTL2(base) ((base) + 0x0908)
+#define PCIE_ATU_LBAR(base) ((base) + 0x090c)
+#define PCIE_ATU_UBAR(base) ((base) + 0x0910)
+#define PCIE_ATU_LAR(base) ((base) + 0x0914)
+#define PCIE_ATU_LTAR(base) ((base) + 0x0918)
+#define PCIE_ATU_UTAR(base) ((base) + 0x091c)
+
+#define PCIE_MSI_ADDR_LOWER(base) ((base) + 0x0820)
+#define PCIE_MSI_ADDR_UPPER(base) ((base) + 0x0824)
+#define PCIE_MSI_ENABLE(base) ((base) + 0x0828)
+#define PCIE_MSI_MASK_RC(base) ((base) + 0x082c)
+#define PCIE_MSI_STATUS(base) ((base) + 0x0830)
+#define PEARL_PCIE_MSI_REGION (0xce000000)
+#define PEARL_PCIE_MSI_DATA (0)
+#define PCIE_MSI_GPIO(base) ((base) + 0x0888)
+
+#define PCIE_HDP_HOST_QUEUE_FULL (BIT(17))
+#define USE_BAR_MATCH_MODE
+#define PCIE_ATU_OB_REGION (BIT(0))
+#define PCIE_ATU_EN_REGION (BIT(31))
+#define PCIE_ATU_EN_MATCH (BIT(30))
+#define PCIE_BASE_REGION (0xb0000000)
+#define PCIE_MEM_MAP_SIZE (512 * 1024)
+
+#define PCIE_OB_REG_REGION (0xcf000000)
+#define PCIE_CONFIG_REGION (0xcf000000)
+#define PCIE_CONFIG_SIZE (4096)
+#define PCIE_CONFIG_CH (1)
+
+/* inbound mapping */
+#define PCIE_IB_BAR0 (0x00000000) /* ddr */
+#define PCIE_IB_BAR0_CH (0)
+#define PCIE_IB_BAR3 (0xe0000000) /* sys_reg */
+#define PCIE_IB_BAR3_CH (1)
+
+/* outbound mapping */
+#define PCIE_MEM_CH (0)
+#define PCIE_REG_CH (1)
+#define PCIE_MEM_REGION (0xc0000000)
+#define PCIE_MEM_SIZE (0x000fffff)
+#define PCIE_MEM_TAR (0x80000000)
+
+#define PCIE_MSI_REGION (0xce000000)
+#define PCIE_MSI_SIZE (KBYTE(4) - 1)
+#define PCIE_MSI_CH (1)
+
+/* size of config region */
+#define PCIE_CFG_SIZE (0x0000ffff)
+
+#define PCIE_ATU_DIR_IB (BIT(31))
+#define PCIE_ATU_DIR_OB (0)
+#define PCIE_ATU_DIR_CFG (2)
+#define PCIE_ATU_DIR_MATCH_IB (BIT(31) | BIT(30))
+
+#define PCIE_DMA_WR_0 (0)
+#define PCIE_DMA_WR_1 (1)
+#define PCIE_DMA_RD_0 (2)
+#define PCIE_DMA_RD_1 (3)
+
+#define PCIE_DMA_CHNL_CNTRL_CB (BIT(0))
+#define PCIE_DMA_CHNL_CNTRL_TCB (BIT(1))
+#define PCIE_DMA_CHNL_CNTRL_LLP (BIT(2))
+#define PCIE_DMA_CHNL_CNTRL_LIE (BIT(3))
+#define PCIE_DMA_CHNL_CNTRL_RIE (BIT(4))
+#define PCIE_DMA_CHNL_CNTRL_CSS (BIT(8))
+#define PCIE_DMA_CHNL_CNTRL_LLE (BIT(9))
+#define PCIE_DMA_CHNL_CNTRL_TLP (BIT(26))
+
+#define PCIE_DMA_CHNL_CONTEXT_RD (BIT(31))
+#define PCIE_DMA_CHNL_CONTEXT_WR (0)
+#define PCIE_MAX_BAR (6)
+
+/* PCIe HDP interrupt status definition */
+#define PCIE_HDP_INT_EP_RXDMA (BIT(0))
+#define PCIE_HDP_INT_HBM_UF (BIT(1))
+#define PCIE_HDP_INT_RX_LEN_ERR (BIT(2))
+#define PCIE_HDP_INT_RX_HDR_LEN_ERR (BIT(3))
+#define PCIE_HDP_INT_EP_TXDMA (BIT(12))
+#define PCIE_HDP_INT_EP_TXEMPTY (BIT(15))
+#define PCIE_HDP_INT_IPC (BIT(29))
+
+/* PCIe interrupt status definition */
+#define PCIE_INT_MSI (BIT(24))
+#define PCIE_INT_INTX (BIT(23))
+
+/* PCIe legacy INTx */
+#define PEARL_PCIE_CFG0_OFFSET (0x6C)
+#define PEARL_ASSERT_INTX (BIT(9))
+
+/* SYS CTL regs */
+#define QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET (0x001C)
+
+#define QTN_PEARL_IPC_IRQ_WORD(irq) (BIT(irq) | BIT(irq + 16))
+#define QTN_PEARL_LHOST_IPC_IRQ (6)
+
+#endif /* __PEARL_PCIE_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
new file mode 100644
index 0000000..1416344
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -0,0 +1,907 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_QLINK_H_
+#define _QTN_QLINK_H_
+
+#include <linux/ieee80211.h>
+
+#define QLINK_PROTO_VER 2
+
+#define QLINK_MACID_RSVD 0xFF
+#define QLINK_VIFID_RSVD 0xFF
+
+/* Common QLINK protocol messages definitions.
+ */
+
+/**
+ * enum qlink_msg_type - QLINK message types
+ *
+ * Used to distinguish between message types of QLINK protocol.
+ *
+ * @QLINK_MSG_TYPE_CMD: Message is carrying data of a command sent from
+ * driver to wireless hardware.
+ * @QLINK_MSG_TYPE_CMDRSP: Message is carrying data of a response to a command.
+ * Sent from wireless HW to driver in reply to previously issued command.
+ * @QLINK_MSG_TYPE_EVENT: Data for an event originated in wireless hardware and
+ * sent asynchronously to driver.
+ */
+enum qlink_msg_type {
+ QLINK_MSG_TYPE_CMD = 1,
+ QLINK_MSG_TYPE_CMDRSP = 2,
+ QLINK_MSG_TYPE_EVENT = 3
+};
+
+/**
+ * struct qlink_msg_header - common QLINK protocol message header
+ *
+ * Portion of QLINK protocol header common for all message types.
+ *
+ * @type: Message type, one of &enum qlink_msg_type.
+ * @len: Total length of message including all headers.
+ */
+struct qlink_msg_header {
+ __le16 type;
+ __le16 len;
+} __packed;
+
+/* Generic definitions of data and information carried in QLINK messages
+ */
+
+enum qlink_hw_capab {
+ QLINK_HW_SUPPORTS_REG_UPDATE = BIT(0),
+};
+
+enum qlink_phy_mode {
+ QLINK_PHYMODE_BGN = BIT(0),
+ QLINK_PHYMODE_AN = BIT(1),
+ QLINK_PHYMODE_AC = BIT(2),
+};
+
+enum qlink_iface_type {
+ QLINK_IFTYPE_AP = 1,
+ QLINK_IFTYPE_STATION = 2,
+ QLINK_IFTYPE_ADHOC = 3,
+ QLINK_IFTYPE_MONITOR = 4,
+ QLINK_IFTYPE_WDS = 5,
+};
+
+/**
+ * struct qlink_intf_info - information on virtual interface.
+ *
+ * Data describing a single virtual interface.
+ *
+ * @if_type: Mode of interface operation, one of &enum qlink_iface_type
+ * @flags: interface flagsmap.
+ * @mac_addr: MAC address of virtual interface.
+ */
+struct qlink_intf_info {
+ __le16 if_type;
+ __le16 flags;
+ u8 mac_addr[ETH_ALEN];
+} __packed;
+
+enum qlink_sta_flags {
+ QLINK_STA_FLAG_INVALID = 0,
+ QLINK_STA_FLAG_AUTHORIZED = BIT(0),
+ QLINK_STA_FLAG_SHORT_PREAMBLE = BIT(1),
+ QLINK_STA_FLAG_WME = BIT(2),
+ QLINK_STA_FLAG_MFP = BIT(3),
+ QLINK_STA_FLAG_AUTHENTICATED = BIT(4),
+ QLINK_STA_FLAG_TDLS_PEER = BIT(5),
+ QLINK_STA_FLAG_ASSOCIATED = BIT(6),
+};
+
+enum qlink_channel_width {
+ QLINK_CHAN_WIDTH_5 = BIT(0),
+ QLINK_CHAN_WIDTH_10 = BIT(1),
+ QLINK_CHAN_WIDTH_20_NOHT = BIT(2),
+ QLINK_CHAN_WIDTH_20 = BIT(3),
+ QLINK_CHAN_WIDTH_40 = BIT(4),
+ QLINK_CHAN_WIDTH_80 = BIT(5),
+ QLINK_CHAN_WIDTH_80P80 = BIT(6),
+ QLINK_CHAN_WIDTH_160 = BIT(7),
+};
+
+/* QLINK Command messages related definitions
+ */
+
+enum qlink_cmd_action {
+ QLINK_CMD_ACTION_GET = 0,
+ QLINK_CMD_ACTION_SET = 1
+};
+
+/**
+ * enum qlink_cmd_type - list of supported commands
+ *
+ * Commands are QLINK messages of type @QLINK_MSG_TYPE_CMD, sent by driver to
+ * wireless network device for processing. Device is expected to send back a
+ * reply message of type &QLINK_MSG_TYPE_CMDRSP, containing at least command
+ * execution status (one of &enum qlink_cmd_result) at least. Reply message
+ * may also contain data payload specific to the command type.
+ *
+ * @QLINK_CMD_CHANS_INFO_GET: for the specified MAC and specified band, get
+ * number of operational channels and information on each of the channel.
+ * This command is generic to a specified MAC, interface index must be set
+ * to QLINK_VIFID_RSVD in command header.
+ */
+enum qlink_cmd_type {
+ QLINK_CMD_FW_INIT = 0x0001,
+ QLINK_CMD_FW_DEINIT = 0x0002,
+ QLINK_CMD_REGISTER_MGMT = 0x0003,
+ QLINK_CMD_SEND_MGMT_FRAME = 0x0004,
+ QLINK_CMD_MGMT_SET_APPIE = 0x0005,
+ QLINK_CMD_PHY_PARAMS = 0x0011,
+ QLINK_CMD_GET_HW_INFO = 0x0013,
+ QLINK_CMD_MAC_INFO = 0x0014,
+ QLINK_CMD_ADD_INTF = 0x0015,
+ QLINK_CMD_DEL_INTF = 0x0016,
+ QLINK_CMD_CHANGE_INTF = 0x0017,
+ QLINK_CMD_UPDOWN_INTF = 0x0018,
+ QLINK_CMD_REG_REGION = 0x0019,
+ QLINK_CMD_CHANS_INFO_GET = 0x001A,
+ QLINK_CMD_CONFIG_AP = 0x0020,
+ QLINK_CMD_START_AP = 0x0021,
+ QLINK_CMD_STOP_AP = 0x0022,
+ QLINK_CMD_GET_STA_INFO = 0x0030,
+ QLINK_CMD_ADD_KEY = 0x0040,
+ QLINK_CMD_DEL_KEY = 0x0041,
+ QLINK_CMD_SET_DEFAULT_KEY = 0x0042,
+ QLINK_CMD_SET_DEFAULT_MGMT_KEY = 0x0043,
+ QLINK_CMD_CHANGE_STA = 0x0051,
+ QLINK_CMD_DEL_STA = 0x0052,
+ QLINK_CMD_SCAN = 0x0053,
+ QLINK_CMD_CONNECT = 0x0060,
+ QLINK_CMD_DISCONNECT = 0x0061,
+};
+
+/**
+ * struct qlink_cmd - QLINK command message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_CMD type.
+ *
+ * @mhdr: Common QLINK message header.
+ * @cmd_id: command id, one of &enum qlink_cmd_type.
+ * @seq_num: sequence number of command message, used for matching with
+ * response message.
+ * @result: unused.
+ * @macid: index of physical radio device the command is destined to or
+ * QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the command
+ * is destined to or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_cmd {
+ struct qlink_msg_header mhdr;
+ __le16 cmd_id;
+ __le16 seq_num;
+ __le16 result;
+ u8 macid;
+ u8 vifid;
+} __packed;
+
+/**
+ * struct qlink_cmd_manage_intf - interface management command
+ *
+ * Data for interface management commands QLINK_CMD_ADD_INTF, QLINK_CMD_DEL_INTF
+ * and QLINK_CMD_CHANGE_INTF.
+ *
+ * @action: command action, one of &enum qlink_cmd_action.
+ * @intf_info: interface description.
+ */
+struct qlink_cmd_manage_intf {
+ struct qlink_cmd chdr;
+ __le16 action;
+ struct qlink_intf_info intf_info;
+} __packed;
+
+enum qlink_mgmt_frame_type {
+ QLINK_MGMT_FRAME_ASSOC_REQ = 0x00,
+ QLINK_MGMT_FRAME_ASSOC_RESP = 0x01,
+ QLINK_MGMT_FRAME_REASSOC_REQ = 0x02,
+ QLINK_MGMT_FRAME_REASSOC_RESP = 0x03,
+ QLINK_MGMT_FRAME_PROBE_REQ = 0x04,
+ QLINK_MGMT_FRAME_PROBE_RESP = 0x05,
+ QLINK_MGMT_FRAME_BEACON = 0x06,
+ QLINK_MGMT_FRAME_ATIM = 0x07,
+ QLINK_MGMT_FRAME_DISASSOC = 0x08,
+ QLINK_MGMT_FRAME_AUTH = 0x09,
+ QLINK_MGMT_FRAME_DEAUTH = 0x0A,
+ QLINK_MGMT_FRAME_ACTION = 0x0B,
+
+ QLINK_MGMT_FRAME_TYPE_COUNT
+};
+
+/**
+ * struct qlink_cmd_mgmt_frame_register - data for QLINK_CMD_REGISTER_MGMT
+ *
+ * @frame_type: MGMT frame type the registration request describes, one of
+ * &enum qlink_mgmt_frame_type.
+ * @do_register: 0 - unregister, otherwise register for reception of specified
+ * MGMT frame type.
+ */
+struct qlink_cmd_mgmt_frame_register {
+ struct qlink_cmd chdr;
+ __le16 frame_type;
+ u8 do_register;
+} __packed;
+
+enum qlink_mgmt_frame_tx_flags {
+ QLINK_MGMT_FRAME_TX_FLAG_NONE = 0,
+ QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN = BIT(0),
+ QLINK_MGMT_FRAME_TX_FLAG_NO_CCK = BIT(1),
+ QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT = BIT(2),
+};
+
+/**
+ * struct qlink_cmd_mgmt_frame_tx - data for QLINK_CMD_SEND_MGMT_FRAME command
+ *
+ * @cookie: opaque request identifier.
+ * @freq: Frequency to use for frame transmission.
+ * @flags: Transmission flags, one of &enum qlink_mgmt_frame_tx_flags.
+ * @frame_data: frame to transmit.
+ */
+struct qlink_cmd_mgmt_frame_tx {
+ struct qlink_cmd chdr;
+ __le32 cookie;
+ __le16 freq;
+ __le16 flags;
+ u8 frame_data[0];
+} __packed;
+
+/**
+ * struct qlink_cmd_mgmt_append_ie - data for QLINK_CMD_MGMT_SET_APPIE command
+ *
+ * @type: type of MGMT frame to appent requested IEs to, one of
+ * &enum qlink_mgmt_frame_type.
+ * @flags: for future use.
+ * @ie_data: IEs data to append.
+ */
+struct qlink_cmd_mgmt_append_ie {
+ struct qlink_cmd chdr;
+ u8 type;
+ u8 flags;
+ u8 ie_data[0];
+} __packed;
+
+/**
+ * struct qlink_cmd_get_sta_info - data for QLINK_CMD_GET_STA_INFO command
+ *
+ * @sta_addr: MAC address of the STA statistics is requested for.
+ */
+struct qlink_cmd_get_sta_info {
+ struct qlink_cmd chdr;
+ u8 sta_addr[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_cmd_add_key - data for QLINK_CMD_ADD_KEY command.
+ *
+ * @key_index: index of the key being installed.
+ * @pairwise: whether to use pairwise key.
+ * @addr: MAC address of a STA key is being installed to.
+ * @cipher: cipher suite.
+ * @key_data: key data itself.
+ */
+struct qlink_cmd_add_key {
+ struct qlink_cmd chdr;
+ u8 key_index;
+ u8 pairwise;
+ u8 addr[ETH_ALEN];
+ __le32 cipher;
+ u8 key_data[0];
+} __packed;
+
+/**
+ * struct qlink_cmd_del_key_req - data for QLINK_CMD_DEL_KEY command
+ *
+ * @key_index: index of the key being removed.
+ * @pairwise: whether to use pairwise key.
+ * @addr: MAC address of a STA for which a key is removed.
+ */
+struct qlink_cmd_del_key {
+ struct qlink_cmd chdr;
+ u8 key_index;
+ u8 pairwise;
+ u8 addr[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_cmd_set_def_key - data for QLINK_CMD_SET_DEFAULT_KEY command
+ *
+ * @key_index: index of the key to be set as default one.
+ * @unicast: key is unicast.
+ * @multicast: key is multicast.
+ */
+struct qlink_cmd_set_def_key {
+ struct qlink_cmd chdr;
+ u8 key_index;
+ u8 unicast;
+ u8 multicast;
+} __packed;
+
+/**
+ * struct qlink_cmd_set_def_mgmt_key - data for QLINK_CMD_SET_DEFAULT_MGMT_KEY
+ *
+ * @key_index: index of the key to be set as default MGMT key.
+ */
+struct qlink_cmd_set_def_mgmt_key {
+ struct qlink_cmd chdr;
+ u8 key_index;
+} __packed;
+
+/**
+ * struct qlink_cmd_change_sta - data for QLINK_CMD_CHANGE_STA command
+ *
+ * @sta_flags_mask: STA flags mask, bitmap of &enum qlink_sta_flags
+ * @sta_flags_set: STA flags values, bitmap of &enum qlink_sta_flags
+ * @sta_addr: address of the STA for which parameters are set.
+ */
+struct qlink_cmd_change_sta {
+ struct qlink_cmd chdr;
+ __le32 sta_flags_mask;
+ __le32 sta_flags_set;
+ u8 sta_addr[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_cmd_del_sta - data for QLINK_CMD_DEL_STA command.
+ *
+ * See &struct station_del_parameters
+ */
+struct qlink_cmd_del_sta {
+ struct qlink_cmd chdr;
+ __le16 reason_code;
+ u8 subtype;
+ u8 sta_addr[ETH_ALEN];
+} __packed;
+
+enum qlink_sta_connect_flags {
+ QLINK_STA_CONNECT_DISABLE_HT = BIT(0),
+ QLINK_STA_CONNECT_DISABLE_VHT = BIT(1),
+ QLINK_STA_CONNECT_USE_RRM = BIT(2),
+};
+
+/**
+ * struct qlink_cmd_connect - data for QLINK_CMD_CONNECT command
+ *
+ * @flags: for future use.
+ * @freq: center frequence of a channel which should be used to connect.
+ * @bg_scan_period: period of background scan.
+ * @bssid: BSSID of the BSS to connect to.
+ * @payload: variable portion of connection request.
+ */
+struct qlink_cmd_connect {
+ struct qlink_cmd chdr;
+ __le32 flags;
+ __le16 freq;
+ __le16 bg_scan_period;
+ u8 bssid[ETH_ALEN];
+ u8 payload[0];
+} __packed;
+
+/**
+ * struct qlink_cmd_disconnect - data for QLINK_CMD_DISCONNECT command
+ *
+ * @reason: code of the reason of disconnect, see &enum ieee80211_reasoncode.
+ */
+struct qlink_cmd_disconnect {
+ struct qlink_cmd chdr;
+ __le16 reason;
+} __packed;
+
+/**
+ * struct qlink_cmd_updown - data for QLINK_CMD_UPDOWN_INTF command
+ *
+ * @if_up: bring specified interface DOWN (if_up==0) or UP (otherwise).
+ * Interface is specified in common command header @chdr.
+ */
+struct qlink_cmd_updown {
+ struct qlink_cmd chdr;
+ u8 if_up;
+} __packed;
+
+/**
+ * enum qlink_band - a list of frequency bands
+ *
+ * @QLINK_BAND_2GHZ: 2.4GHz band
+ * @QLINK_BAND_5GHZ: 5GHz band
+ * @QLINK_BAND_60GHZ: 60GHz band
+ */
+enum qlink_band {
+ QLINK_BAND_2GHZ = BIT(0),
+ QLINK_BAND_5GHZ = BIT(1),
+ QLINK_BAND_60GHZ = BIT(2),
+};
+
+/**
+ * struct qlink_cmd_chans_info_get - data for QLINK_CMD_CHANS_INFO_GET command
+ *
+ * @band: a PHY band for which channels info is needed, one of @enum qlink_band
+ */
+struct qlink_cmd_chans_info_get {
+ struct qlink_cmd chdr;
+ u8 band;
+} __packed;
+
+/* QLINK Command Responses messages related definitions
+ */
+
+enum qlink_cmd_result {
+ QLINK_CMD_RESULT_OK = 0,
+ QLINK_CMD_RESULT_INVALID,
+ QLINK_CMD_RESULT_ENOTSUPP,
+ QLINK_CMD_RESULT_ENOTFOUND,
+};
+
+/**
+ * struct qlink_resp - QLINK command response message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_CMDRSP type.
+ *
+ * @mhdr: see &struct qlink_msg_header.
+ * @cmd_id: command ID the response corresponds to, one of &enum qlink_cmd_type.
+ * @seq_num: sequence number of command message, used for matching with
+ * response message.
+ * @result: result of the command execution, one of &enum qlink_cmd_result.
+ * @macid: index of physical radio device the response is sent from or
+ * QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the response
+ * is sent from or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_resp {
+ struct qlink_msg_header mhdr;
+ __le16 cmd_id;
+ __le16 seq_num;
+ __le16 result;
+ u8 macid;
+ u8 vifid;
+} __packed;
+
+/**
+ * struct qlink_resp_get_mac_info - response for QLINK_CMD_MAC_INFO command
+ *
+ * Data describing specific physical device providing wireless MAC
+ * functionality.
+ *
+ * @dev_mac: MAC address of physical WMAC device (used for first BSS on
+ * specified WMAC).
+ * @num_tx_chain: Number of transmit chains used by WMAC.
+ * @num_rx_chain: Number of receive chains used by WMAC.
+ * @vht_cap: VHT capabilities.
+ * @ht_cap: HT capabilities.
+ * @bands_cap: wireless bands WMAC can operate in, bitmap of &enum qlink_band.
+ * @phymode_cap: PHY modes WMAC can operate in, bitmap of &enum qlink_phy_mode.
+ * @max_ap_assoc_sta: Maximum number of associations supported by WMAC.
+ * @radar_detect_widths: bitmask of channels BW for which WMAC can detect radar.
+ * @var_info: variable-length WMAC info data.
+ */
+struct qlink_resp_get_mac_info {
+ struct qlink_resp rhdr;
+ u8 dev_mac[ETH_ALEN];
+ u8 num_tx_chain;
+ u8 num_rx_chain;
+ struct ieee80211_vht_cap vht_cap;
+ struct ieee80211_ht_cap ht_cap;
+ u8 bands_cap;
+ u8 phymode_cap;
+ __le16 max_ap_assoc_sta;
+ __le16 radar_detect_widths;
+ u8 var_info[0];
+} __packed;
+
+/**
+ * struct qlink_resp_get_hw_info - response for QLINK_CMD_GET_HW_INFO command
+ *
+ * Description of wireless hardware capabilities and features.
+ *
+ * @fw_ver: wireless hardware firmware version.
+ * @hw_capab: Bitmap of capabilities supported by firmware.
+ * @ql_proto_ver: Version of QLINK protocol used by firmware.
+ * @country_code: country code ID firmware is configured to.
+ * @num_mac: Number of separate physical radio devices provided by hardware.
+ * @mac_bitmap: Bitmap of MAC IDs that are active and can be used in firmware.
+ * @total_tx_chains: total number of transmit chains used by device.
+ * @total_rx_chains: total number of receive chains.
+ */
+struct qlink_resp_get_hw_info {
+ struct qlink_resp rhdr;
+ __le32 fw_ver;
+ __le32 hw_capab;
+ __le16 ql_proto_ver;
+ u8 alpha2_code[2];
+ u8 num_mac;
+ u8 mac_bitmap;
+ u8 total_tx_chain;
+ u8 total_rx_chain;
+} __packed;
+
+/**
+ * struct qlink_resp_manage_intf - response for interface management commands
+ *
+ * Response data for QLINK_CMD_ADD_INTF and QLINK_CMD_CHANGE_INTF commands.
+ *
+ * @rhdr: Common Command Response message header.
+ * @intf_info: interface description.
+ */
+struct qlink_resp_manage_intf {
+ struct qlink_resp rhdr;
+ struct qlink_intf_info intf_info;
+} __packed;
+
+/**
+ * struct qlink_resp_get_sta_info - response for QLINK_CMD_GET_STA_INFO command
+ *
+ * Response data containing statistics for specified STA.
+ *
+ * @sta_addr: MAC address of STA the response carries statistic for.
+ * @info: statistics for specified STA.
+ */
+struct qlink_resp_get_sta_info {
+ struct qlink_resp rhdr;
+ u8 sta_addr[ETH_ALEN];
+ u8 info[0];
+} __packed;
+
+/**
+ * struct qlink_resp_get_chan_info - response for QLINK_CMD_CHANS_INFO_GET cmd
+ *
+ * @band: frequency band to which channels belong to, one of @enum qlink_band.
+ * @num_chans: total number of channels info data contained in reply data.
+ * @info: variable-length channels info.
+ */
+struct qlink_resp_get_chan_info {
+ struct qlink_resp rhdr;
+ u8 band;
+ u8 num_chans;
+ u8 rsvd[2];
+ u8 info[0];
+} __packed;
+
+/**
+ * struct qlink_resp_phy_params - response for QLINK_CMD_PHY_PARAMS command
+ *
+ * @info: variable-length array of PHY params.
+ */
+struct qlink_resp_phy_params {
+ struct qlink_resp rhdr;
+ u8 info[0];
+} __packed;
+
+/* QLINK Events messages related definitions
+ */
+
+enum qlink_event_type {
+ QLINK_EVENT_STA_ASSOCIATED = 0x0021,
+ QLINK_EVENT_STA_DEAUTH = 0x0022,
+ QLINK_EVENT_MGMT_RECEIVED = 0x0023,
+ QLINK_EVENT_SCAN_RESULTS = 0x0024,
+ QLINK_EVENT_SCAN_COMPLETE = 0x0025,
+ QLINK_EVENT_BSS_JOIN = 0x0026,
+ QLINK_EVENT_BSS_LEAVE = 0x0027,
+};
+
+/**
+ * struct qlink_event - QLINK event message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_EVENT type.
+ *
+ * @mhdr: Common QLINK message header.
+ * @event_id: Specifies specific event ID, one of &enum qlink_event_type.
+ * @macid: index of physical radio device the event was generated on or
+ * QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the event
+ * was generated on or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_event {
+ struct qlink_msg_header mhdr;
+ __le16 event_id;
+ u8 macid;
+ u8 vifid;
+} __packed;
+
+/**
+ * struct qlink_event_sta_assoc - data for QLINK_EVENT_STA_ASSOCIATED event
+ *
+ * @sta_addr: Address of a STA for which new association event was generated
+ * @frame_control: control bits from 802.11 ASSOC_REQUEST header.
+ * @payload: IEs from association request.
+ */
+struct qlink_event_sta_assoc {
+ struct qlink_event ehdr;
+ u8 sta_addr[ETH_ALEN];
+ __le16 frame_control;
+ u8 ies[0];
+} __packed;
+
+/**
+ * struct qlink_event_sta_deauth - data for QLINK_EVENT_STA_DEAUTH event
+ *
+ * @sta_addr: Address of a deauthenticated STA.
+ * @reason: reason for deauthentication.
+ */
+struct qlink_event_sta_deauth {
+ struct qlink_event ehdr;
+ u8 sta_addr[ETH_ALEN];
+ __le16 reason;
+} __packed;
+
+/**
+ * struct qlink_event_bss_join - data for QLINK_EVENT_BSS_JOIN event
+ *
+ * @bssid: BSSID of a BSS which interface tried to joined.
+ * @status: status of joining attempt, see &enum ieee80211_statuscode.
+ */
+struct qlink_event_bss_join {
+ struct qlink_event ehdr;
+ u8 bssid[ETH_ALEN];
+ __le16 status;
+} __packed;
+
+/**
+ * struct qlink_event_bss_leave - data for QLINK_EVENT_BSS_LEAVE event
+ *
+ * @reason: reason of disconnecting from BSS.
+ */
+struct qlink_event_bss_leave {
+ struct qlink_event ehdr;
+ u16 reason;
+} __packed;
+
+enum qlink_rxmgmt_flags {
+ QLINK_RXMGMT_FLAG_ANSWERED = 1 << 0,
+};
+
+/**
+ * struct qlink_event_rxmgmt - data for QLINK_EVENT_MGMT_RECEIVED event
+ *
+ * @freq: Frequency on which the frame was received in MHz.
+ * @sig_dbm: signal strength in dBm.
+ * @flags: bitmap of &enum qlink_rxmgmt_flags.
+ * @frame_data: data of Rx'd frame itself.
+ */
+struct qlink_event_rxmgmt {
+ struct qlink_event ehdr;
+ __le32 freq;
+ __le32 sig_dbm;
+ __le32 flags;
+ u8 frame_data[0];
+} __packed;
+
+enum qlink_frame_type {
+ QLINK_BSS_FTYPE_UNKNOWN,
+ QLINK_BSS_FTYPE_BEACON,
+ QLINK_BSS_FTYPE_PRESP,
+};
+
+/**
+ * struct qlink_event_scan_result - data for QLINK_EVENT_SCAN_RESULTS event
+ *
+ * @tsf: TSF timestamp indicating when scan results were generated.
+ * @freq: Center frequency of the channel where BSS for which the scan result
+ * event was generated was discovered.
+ * @capab: capabilities field.
+ * @bintval: beacon interval announced by discovered BSS.
+ * @signal: signal strength.
+ * @frame_type: frame type used to get scan result, see &enum qlink_frame_type.
+ * @bssid: BSSID announced by discovered BSS.
+ * @ssid_len: length of SSID announced by BSS.
+ * @ssid: SSID announced by discovered BSS.
+ * @payload: IEs that are announced by discovered BSS in its MGMt frames.
+ */
+struct qlink_event_scan_result {
+ struct qlink_event ehdr;
+ __le64 tsf;
+ __le16 freq;
+ __le16 capab;
+ __le16 bintval;
+ s8 signal;
+ u8 frame_type;
+ u8 bssid[ETH_ALEN];
+ u8 ssid_len;
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 payload[0];
+} __packed;
+
+/**
+ * enum qlink_scan_complete_flags - indicates result of scan request.
+ *
+ * @QLINK_SCAN_NONE: Scan request was processed.
+ * @QLINK_SCAN_ABORTED: Scan was aborted.
+ */
+enum qlink_scan_complete_flags {
+ QLINK_SCAN_NONE = 0,
+ QLINK_SCAN_ABORTED = BIT(0),
+};
+
+/**
+ * struct qlink_event_scan_complete - data for QLINK_EVENT_SCAN_COMPLETE event
+ *
+ * @flags: flags indicating the status of pending scan request,
+ * see &enum qlink_scan_complete_flags.
+ */
+struct qlink_event_scan_complete {
+ struct qlink_event ehdr;
+ __le32 flags;
+} __packed;
+
+/* QLINK TLVs (Type-Length Values) definitions
+ */
+
+enum qlink_tlv_id {
+ QTN_TLV_ID_FRAG_THRESH = 0x0201,
+ QTN_TLV_ID_RTS_THRESH = 0x0202,
+ QTN_TLV_ID_SRETRY_LIMIT = 0x0203,
+ QTN_TLV_ID_LRETRY_LIMIT = 0x0204,
+ QTN_TLV_ID_BCN_PERIOD = 0x0205,
+ QTN_TLV_ID_DTIM = 0x0206,
+ QTN_TLV_ID_CHANNEL = 0x020F,
+ QTN_TLV_ID_COVERAGE_CLASS = 0x0213,
+ QTN_TLV_ID_IFACE_LIMIT = 0x0214,
+ QTN_TLV_ID_NUM_IFACE_COMB = 0x0215,
+ QTN_TLV_ID_STA_BASIC_COUNTERS = 0x0300,
+ QTN_TLV_ID_STA_GENERIC_INFO = 0x0301,
+ QTN_TLV_ID_KEY = 0x0302,
+ QTN_TLV_ID_SEQ = 0x0303,
+ QTN_TLV_ID_CRYPTO = 0x0304,
+ QTN_TLV_ID_IE_SET = 0x0305,
+};
+
+struct qlink_tlv_hdr {
+ __le16 type;
+ __le16 len;
+ u8 val[0];
+} __packed;
+
+struct qlink_iface_limit {
+ __le16 max_num;
+ __le16 type_mask;
+} __packed;
+
+struct qlink_iface_comb_num {
+ __le16 iface_comb_num;
+} __packed;
+
+struct qlink_sta_stat_basic_counters {
+ __le64 rx_bytes;
+ __le64 tx_bytes;
+ __le64 rx_beacons;
+ __le32 rx_packets;
+ __le32 tx_packets;
+ __le32 rx_dropped;
+ __le32 tx_failed;
+} __packed;
+
+enum qlink_sta_info_rate_flags {
+ QLINK_STA_INFO_RATE_FLAG_INVALID = 0,
+ QLINK_STA_INFO_RATE_FLAG_HT_MCS = BIT(0),
+ QLINK_STA_INFO_RATE_FLAG_VHT_MCS = BIT(1),
+ QLINK_STA_INFO_RATE_FLAG_SHORT_GI = BIT(2),
+ QLINK_STA_INFO_RATE_FLAG_60G = BIT(3),
+};
+
+enum qlink_sta_info_rate_bw {
+ QLINK_STA_INFO_RATE_BW_5 = 0,
+ QLINK_STA_INFO_RATE_BW_10 = 1,
+ QLINK_STA_INFO_RATE_BW_20 = 2,
+ QLINK_STA_INFO_RATE_BW_40 = 3,
+ QLINK_STA_INFO_RATE_BW_80 = 4,
+ QLINK_STA_INFO_RATE_BW_160 = 5,
+};
+
+/**
+ * struct qlink_sta_info_rate - STA rate statistics
+ *
+ * @rate: data rate in Mbps.
+ * @flags: bitmap of &enum qlink_sta_flags.
+ * @mcs: 802.11-defined MCS index.
+ * nss: Number of Spatial Streams.
+ * @bw: bandwidth, one of &enum qlink_sta_info_rate_bw.
+ */
+struct qlink_sta_info_rate {
+ __le16 rate;
+ u8 flags;
+ u8 mcs;
+ u8 nss;
+ u8 bw;
+} __packed;
+
+struct qlink_sta_info_state {
+ __le32 mask;
+ __le32 value;
+} __packed;
+
+#define QLINK_RSSI_OFFSET 120
+
+struct qlink_sta_info_generic {
+ struct qlink_sta_info_state state;
+ __le32 connected_time;
+ __le32 inactive_time;
+ struct qlink_sta_info_rate rx_rate;
+ struct qlink_sta_info_rate tx_rate;
+ u8 rssi;
+ u8 rssi_avg;
+} __packed;
+
+struct qlink_tlv_frag_rts_thr {
+ struct qlink_tlv_hdr hdr;
+ __le16 thr;
+} __packed;
+
+struct qlink_tlv_rlimit {
+ struct qlink_tlv_hdr hdr;
+ u8 rlimit;
+} __packed;
+
+struct qlink_tlv_cclass {
+ struct qlink_tlv_hdr hdr;
+ u8 cclass;
+} __packed;
+
+enum qlink_dfs_state {
+ QLINK_DFS_USABLE,
+ QLINK_DFS_UNAVAILABLE,
+ QLINK_DFS_AVAILABLE,
+};
+
+enum qlink_channel_flags {
+ QLINK_CHAN_DISABLED = BIT(0),
+ QLINK_CHAN_NO_IR = BIT(1),
+ QLINK_CHAN_RADAR = BIT(3),
+ QLINK_CHAN_NO_HT40PLUS = BIT(4),
+ QLINK_CHAN_NO_HT40MINUS = BIT(5),
+ QLINK_CHAN_NO_OFDM = BIT(6),
+ QLINK_CHAN_NO_80MHZ = BIT(7),
+ QLINK_CHAN_NO_160MHZ = BIT(8),
+ QLINK_CHAN_INDOOR_ONLY = BIT(9),
+ QLINK_CHAN_IR_CONCURRENT = BIT(10),
+ QLINK_CHAN_NO_20MHZ = BIT(11),
+ QLINK_CHAN_NO_10MHZ = BIT(12),
+};
+
+struct qlink_tlv_channel {
+ struct qlink_tlv_hdr hdr;
+ __le16 hw_value;
+ __le16 center_freq;
+ __le32 flags;
+ u8 band;
+ u8 max_antenna_gain;
+ u8 max_power;
+ u8 max_reg_power;
+ __le32 dfs_cac_ms;
+ u8 dfs_state;
+ u8 beacon_found;
+ u8 rsvd[2];
+} __packed;
+
+#define QLINK_MAX_NR_CIPHER_SUITES 5
+#define QLINK_MAX_NR_AKM_SUITES 2
+
+struct qlink_auth_encr {
+ __le32 wpa_versions;
+ __le32 cipher_group;
+ __le32 n_ciphers_pairwise;
+ __le32 ciphers_pairwise[QLINK_MAX_NR_CIPHER_SUITES];
+ __le32 n_akm_suites;
+ __le32 akm_suites[QLINK_MAX_NR_AKM_SUITES];
+ __le16 control_port_ethertype;
+ u8 auth_type;
+ u8 privacy;
+ u8 mfp;
+ u8 control_port;
+ u8 control_port_no_encrypt;
+} __packed;
+
+#endif /* _QTN_QLINK_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
new file mode 100644
index 0000000..49ae652
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/nl80211.h>
+
+#include "qlink_util.h"
+
+u16 qlink_iface_type_mask_to_nl(u16 qlink_mask)
+{
+ u16 result = 0;
+
+ if (qlink_mask & QLINK_IFTYPE_AP)
+ result |= BIT(NL80211_IFTYPE_AP);
+
+ if (qlink_mask & QLINK_IFTYPE_STATION)
+ result |= BIT(NL80211_IFTYPE_STATION);
+
+ if (qlink_mask & QLINK_IFTYPE_ADHOC)
+ result |= BIT(NL80211_IFTYPE_ADHOC);
+
+ if (qlink_mask & QLINK_IFTYPE_MONITOR)
+ result |= BIT(NL80211_IFTYPE_MONITOR);
+
+ if (qlink_mask & QLINK_IFTYPE_WDS)
+ result |= BIT(NL80211_IFTYPE_WDS);
+
+ return result;
+}
+
+u8 qlink_chan_width_mask_to_nl(u16 qlink_mask)
+{
+ u8 result = 0;
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_5)
+ result |= BIT(NL80211_CHAN_WIDTH_5);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_10)
+ result |= BIT(NL80211_CHAN_WIDTH_10);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_20_NOHT)
+ result |= BIT(NL80211_CHAN_WIDTH_20_NOHT);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_20)
+ result |= BIT(NL80211_CHAN_WIDTH_20);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_40)
+ result |= BIT(NL80211_CHAN_WIDTH_40);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_80)
+ result |= BIT(NL80211_CHAN_WIDTH_80);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_80P80)
+ result |= BIT(NL80211_CHAN_WIDTH_80P80);
+
+ if (qlink_mask & QLINK_CHAN_WIDTH_160)
+ result |= BIT(NL80211_CHAN_WIDTH_160);
+
+ return result;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h
new file mode 100644
index 0000000..d8de484
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_QLINK_UTIL_H_
+#define _QTN_FMAC_QLINK_UTIL_H_
+
+#include <linux/types.h>
+#include <linux/skbuff.h>
+
+#include "qlink.h"
+
+static inline void qtnf_cmd_skb_put_action(struct sk_buff *skb, u16 action)
+{
+ __le16 *buf_ptr;
+
+ buf_ptr = (__le16 *)skb_put(skb, sizeof(action));
+ *buf_ptr = cpu_to_le16(action);
+}
+
+static inline void
+qtnf_cmd_skb_put_buffer(struct sk_buff *skb, const u8 *buf_src, size_t len)
+{
+ u8 *buf_dst;
+
+ buf_dst = skb_put(skb, len);
+ memcpy(buf_dst, buf_src, len);
+}
+
+static inline void qtnf_cmd_skb_put_tlv_arr(struct sk_buff *skb,
+ u16 tlv_id, const u8 arr[],
+ size_t arr_len)
+{
+ struct qlink_tlv_hdr *hdr =
+ (void *)skb_put(skb, sizeof(*hdr) + arr_len);
+
+ hdr->type = cpu_to_le16(tlv_id);
+ hdr->len = cpu_to_le16(arr_len);
+ memcpy(hdr->val, arr, arr_len);
+}
+
+static inline void qtnf_cmd_skb_put_tlv_u8(struct sk_buff *skb, u16 tlv_id,
+ u8 value)
+{
+ struct qlink_tlv_hdr *hdr =
+ (void *)skb_put(skb, sizeof(*hdr) + sizeof(value));
+
+ hdr->type = cpu_to_le16(tlv_id);
+ hdr->len = cpu_to_le16(sizeof(value));
+ *hdr->val = value;
+}
+
+static inline void qtnf_cmd_skb_put_tlv_u16(struct sk_buff *skb,
+ u16 tlv_id, u16 value)
+{
+ struct qlink_tlv_hdr *hdr =
+ (void *)skb_put(skb, sizeof(*hdr) + sizeof(value));
+ __le16 tmp = cpu_to_le16(value);
+
+ hdr->type = cpu_to_le16(tlv_id);
+ hdr->len = cpu_to_le16(sizeof(value));
+ memcpy(hdr->val, &tmp, sizeof(tmp));
+}
+
+u16 qlink_iface_type_mask_to_nl(u16 qlink_mask);
+u8 qlink_chan_width_mask_to_nl(u16 qlink_mask);
+
+#endif /* _QTN_FMAC_QLINK_UTIL_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
new file mode 100644
index 0000000..c4ad40d
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_HW_IDS_H_
+#define _QTN_HW_IDS_H_
+
+#include <linux/pci_ids.h>
+
+#define PCIE_VENDOR_ID_QUANTENNA (0x1bb5)
+
+/* PCIE Device IDs */
+
+#define PCIE_DEVICE_ID_QTN_PEARL (0x0008)
+
+/* FW names */
+
+#define QTN_PCI_PEARL_FW_NAME "qtn/fmac_qsr10g.img"
+
+#endif /* _QTN_HW_IDS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c
new file mode 100644
index 0000000..061be56
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include "shm_ipc.h"
+
+#undef pr_fmt
+#define pr_fmt(fmt) "qtnfmac shm_ipc: %s: " fmt, __func__
+
+static bool qtnf_shm_ipc_has_new_data(struct qtnf_shm_ipc *ipc)
+{
+ const u32 flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+ return (flags & QTNF_SHM_IPC_NEW_DATA);
+}
+
+static void qtnf_shm_handle_new_data(struct qtnf_shm_ipc *ipc)
+{
+ size_t size;
+ bool rx_buff_ok = true;
+ struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr;
+
+ shm_reg_hdr = &ipc->shm_region->headroom.hdr;
+
+ size = readw(&shm_reg_hdr->data_len);
+
+ if (unlikely(size == 0 || size > QTN_IPC_MAX_DATA_SZ)) {
+ pr_err("wrong rx packet size: %zu\n", size);
+ rx_buff_ok = false;
+ } else {
+ memcpy_fromio(ipc->rx_data, ipc->shm_region->data, size);
+ }
+
+ writel(QTNF_SHM_IPC_ACK, &shm_reg_hdr->flags);
+ readl(&shm_reg_hdr->flags); /* flush PCIe write */
+
+ ipc->interrupt.fn(ipc->interrupt.arg);
+
+ if (likely(rx_buff_ok)) {
+ ipc->rx_packet_count++;
+ ipc->rx_callback.fn(ipc->rx_callback.arg, ipc->rx_data, size);
+ }
+}
+
+static void qtnf_shm_ipc_irq_work(struct work_struct *work)
+{
+ struct qtnf_shm_ipc *ipc = container_of(work, struct qtnf_shm_ipc,
+ irq_work);
+
+ while (qtnf_shm_ipc_has_new_data(ipc))
+ qtnf_shm_handle_new_data(ipc);
+}
+
+static void qtnf_shm_ipc_irq_inbound_handler(struct qtnf_shm_ipc *ipc)
+{
+ u32 flags;
+
+ flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+ if (flags & QTNF_SHM_IPC_NEW_DATA)
+ queue_work(ipc->workqueue, &ipc->irq_work);
+}
+
+static void qtnf_shm_ipc_irq_outbound_handler(struct qtnf_shm_ipc *ipc)
+{
+ u32 flags;
+
+ if (!READ_ONCE(ipc->waiting_for_ack))
+ return;
+
+ flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+ if (flags & QTNF_SHM_IPC_ACK) {
+ WRITE_ONCE(ipc->waiting_for_ack, 0);
+ complete(&ipc->tx_completion);
+ }
+}
+
+int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc,
+ enum qtnf_shm_ipc_direction direction,
+ struct qtnf_shm_ipc_region __iomem *shm_region,
+ struct workqueue_struct *workqueue,
+ const struct qtnf_shm_ipc_int *interrupt,
+ const struct qtnf_shm_ipc_rx_callback *rx_callback)
+{
+ BUILD_BUG_ON(offsetof(struct qtnf_shm_ipc_region, data) !=
+ QTN_IPC_REG_HDR_SZ);
+ BUILD_BUG_ON(sizeof(struct qtnf_shm_ipc_region) > QTN_IPC_REG_SZ);
+
+ ipc->shm_region = shm_region;
+ ipc->direction = direction;
+ ipc->interrupt = *interrupt;
+ ipc->rx_callback = *rx_callback;
+ ipc->tx_packet_count = 0;
+ ipc->rx_packet_count = 0;
+ ipc->workqueue = workqueue;
+ ipc->waiting_for_ack = 0;
+ ipc->tx_timeout_count = 0;
+
+ switch (direction) {
+ case QTNF_SHM_IPC_OUTBOUND:
+ ipc->irq_handler = qtnf_shm_ipc_irq_outbound_handler;
+ break;
+ case QTNF_SHM_IPC_INBOUND:
+ ipc->irq_handler = qtnf_shm_ipc_irq_inbound_handler;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ INIT_WORK(&ipc->irq_work, qtnf_shm_ipc_irq_work);
+ init_completion(&ipc->tx_completion);
+
+ return 0;
+}
+
+void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc)
+{
+ complete_all(&ipc->tx_completion);
+}
+
+int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size)
+{
+ int ret = 0;
+ struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr;
+
+ shm_reg_hdr = &ipc->shm_region->headroom.hdr;
+
+ if (unlikely(size > QTN_IPC_MAX_DATA_SZ))
+ return -E2BIG;
+
+ ipc->tx_packet_count++;
+
+ writew(size, &shm_reg_hdr->data_len);
+ memcpy_toio(ipc->shm_region->data, buf, size);
+
+ WRITE_ONCE(ipc->waiting_for_ack, 1);
+
+ wmb(); /* sync previous writes before announcing new data ready */
+
+ writel(QTNF_SHM_IPC_NEW_DATA, &shm_reg_hdr->flags);
+ readl(&shm_reg_hdr->flags); /* flush PCIe write */
+
+ ipc->interrupt.fn(ipc->interrupt.arg);
+
+ if (!wait_for_completion_timeout(&ipc->tx_completion,
+ QTN_SHM_IPC_ACK_TIMEOUT)) {
+ ret = -ETIMEDOUT;
+ ipc->tx_timeout_count++;
+ pr_err("TX ACK timeout\n");
+ }
+
+ /* now we're not waiting for ACK even in case of timeout */
+ WRITE_ONCE(ipc->waiting_for_ack, 0);
+
+ return ret;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h
new file mode 100644
index 0000000..453dd64
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_SHM_IPC_H_
+#define _QTN_FMAC_SHM_IPC_H_
+
+#include <linux/workqueue.h>
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+
+#include "shm_ipc_defs.h"
+
+#define QTN_SHM_IPC_ACK_TIMEOUT (2 * HZ)
+
+struct qtnf_shm_ipc_int {
+ void (*fn)(void *arg);
+ void *arg;
+};
+
+struct qtnf_shm_ipc_rx_callback {
+ void (*fn)(void *arg, const u8 *buf, size_t len);
+ void *arg;
+};
+
+enum qtnf_shm_ipc_direction {
+ QTNF_SHM_IPC_OUTBOUND = BIT(0),
+ QTNF_SHM_IPC_INBOUND = BIT(1),
+};
+
+struct qtnf_shm_ipc {
+ struct qtnf_shm_ipc_region __iomem *shm_region;
+ enum qtnf_shm_ipc_direction direction;
+ size_t tx_packet_count;
+ size_t rx_packet_count;
+
+ size_t tx_timeout_count;
+
+ u8 waiting_for_ack;
+
+ u8 rx_data[QTN_IPC_MAX_DATA_SZ] __aligned(sizeof(u32));
+
+ struct qtnf_shm_ipc_int interrupt;
+ struct qtnf_shm_ipc_rx_callback rx_callback;
+
+ void (*irq_handler)(struct qtnf_shm_ipc *ipc);
+
+ struct workqueue_struct *workqueue;
+ struct work_struct irq_work;
+ struct completion tx_completion;
+};
+
+int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc,
+ enum qtnf_shm_ipc_direction direction,
+ struct qtnf_shm_ipc_region __iomem *shm_region,
+ struct workqueue_struct *workqueue,
+ const struct qtnf_shm_ipc_int *interrupt,
+ const struct qtnf_shm_ipc_rx_callback *rx_callback);
+void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc);
+int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size);
+
+static inline void qtnf_shm_ipc_irq_handler(struct qtnf_shm_ipc *ipc)
+{
+ ipc->irq_handler(ipc);
+}
+
+#endif /* _QTN_FMAC_SHM_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h
new file mode 100644
index 0000000..95a5f89
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_SHM_IPC_DEFS_H_
+#define _QTN_FMAC_SHM_IPC_DEFS_H_
+
+#include <linux/types.h>
+
+#define QTN_IPC_REG_HDR_SZ (32)
+#define QTN_IPC_REG_SZ (4096)
+#define QTN_IPC_MAX_DATA_SZ (QTN_IPC_REG_SZ - QTN_IPC_REG_HDR_SZ)
+
+enum qtnf_shm_ipc_region_flags {
+ QTNF_SHM_IPC_NEW_DATA = BIT(0),
+ QTNF_SHM_IPC_ACK = BIT(1),
+};
+
+struct qtnf_shm_ipc_region_header {
+ __le32 flags;
+ __le16 data_len;
+} __packed;
+
+union qtnf_shm_ipc_region_headroom {
+ struct qtnf_shm_ipc_region_header hdr;
+ u8 headroom[QTN_IPC_REG_HDR_SZ];
+} __packed;
+
+struct qtnf_shm_ipc_region {
+ union qtnf_shm_ipc_region_headroom headroom;
+ u8 data[QTN_IPC_MAX_DATA_SZ];
+} __packed;
+
+#endif /* _QTN_FMAC_SHM_IPC_DEFS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.c b/drivers/net/wireless/quantenna/qtnfmac/trans.c
new file mode 100644
index 0000000..ccddfeb
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/trans.c
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+
+#include "core.h"
+#include "commands.h"
+#include "event.h"
+#include "bus.h"
+
+#define QTNF_DEF_SYNC_CMD_TIMEOUT (5 * HZ)
+
+int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus, struct sk_buff *cmd_skb,
+ struct sk_buff **response_skb)
+{
+ struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd;
+ struct qlink_cmd *cmd = (void *)cmd_skb->data;
+ int ret = 0;
+ long status;
+ bool resp_not_handled = true;
+ struct sk_buff *resp_skb = NULL;
+
+ if (unlikely(!response_skb))
+ return -EFAULT;
+
+ spin_lock(&ctl_node->resp_lock);
+ ctl_node->seq_num++;
+ cmd->seq_num = cpu_to_le16(ctl_node->seq_num);
+ WARN(ctl_node->resp_skb, "qtnfmac: response skb not empty\n");
+ ctl_node->waiting_for_resp = true;
+ spin_unlock(&ctl_node->resp_lock);
+
+ ret = qtnf_bus_control_tx(bus, cmd_skb);
+ dev_kfree_skb(cmd_skb);
+
+ if (unlikely(ret))
+ goto out;
+
+ status = wait_for_completion_interruptible_timeout(
+ &ctl_node->cmd_resp_completion,
+ QTNF_DEF_SYNC_CMD_TIMEOUT);
+
+ spin_lock(&ctl_node->resp_lock);
+ resp_not_handled = ctl_node->waiting_for_resp;
+ resp_skb = ctl_node->resp_skb;
+ ctl_node->resp_skb = NULL;
+ ctl_node->waiting_for_resp = false;
+ spin_unlock(&ctl_node->resp_lock);
+
+ if (unlikely(status <= 0)) {
+ if (status == 0) {
+ ret = -ETIMEDOUT;
+ pr_err("response timeout\n");
+ } else {
+ ret = -EINTR;
+ pr_debug("interrupted\n");
+ }
+ }
+
+ if (unlikely(!resp_skb || resp_not_handled)) {
+ if (!ret)
+ ret = -EFAULT;
+
+ goto out;
+ }
+
+ ret = 0;
+ *response_skb = resp_skb;
+
+out:
+ if (unlikely(resp_skb && resp_not_handled))
+ dev_kfree_skb(resp_skb);
+
+ return ret;
+}
+
+static void qtnf_trans_signal_cmdresp(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd;
+ const struct qlink_resp *resp = (const struct qlink_resp *)skb->data;
+ const u16 recvd_seq_num = le16_to_cpu(resp->seq_num);
+
+ spin_lock(&ctl_node->resp_lock);
+
+ if (unlikely(!ctl_node->waiting_for_resp)) {
+ pr_err("unexpected response\n");
+ goto out_err;
+ }
+
+ if (unlikely(recvd_seq_num != ctl_node->seq_num)) {
+ pr_err("seq num mismatch\n");
+ goto out_err;
+ }
+
+ ctl_node->resp_skb = skb;
+ ctl_node->waiting_for_resp = false;
+
+ spin_unlock(&ctl_node->resp_lock);
+
+ complete(&ctl_node->cmd_resp_completion);
+ return;
+
+out_err:
+ spin_unlock(&ctl_node->resp_lock);
+ dev_kfree_skb(skb);
+}
+
+static int qtnf_trans_event_enqueue(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ struct qtnf_qlink_transport *trans = &bus->trans;
+
+ if (likely(skb_queue_len(&trans->event_queue) <
+ trans->event_queue_max_len)) {
+ skb_queue_tail(&trans->event_queue, skb);
+ queue_work(bus->workqueue, &bus->event_work);
+ } else {
+ pr_warn("event dropped due to queue overflow\n");
+ dev_kfree_skb(skb);
+ return -1;
+ }
+
+ return 0;
+}
+
+void qtnf_trans_init(struct qtnf_bus *bus)
+{
+ struct qtnf_qlink_transport *trans = &bus->trans;
+
+ init_completion(&trans->curr_cmd.cmd_resp_completion);
+ spin_lock_init(&trans->curr_cmd.resp_lock);
+
+ spin_lock(&trans->curr_cmd.resp_lock);
+ trans->curr_cmd.seq_num = 0;
+ trans->curr_cmd.waiting_for_resp = false;
+ trans->curr_cmd.resp_skb = NULL;
+ spin_unlock(&trans->curr_cmd.resp_lock);
+
+ /* Init event handling related fields */
+ skb_queue_head_init(&trans->event_queue);
+ trans->event_queue_max_len = QTNF_MAX_EVENT_QUEUE_LEN;
+}
+
+static void qtnf_trans_free_events(struct qtnf_bus *bus)
+{
+ struct sk_buff_head *event_queue = &bus->trans.event_queue;
+ struct sk_buff *current_event_skb = skb_dequeue(event_queue);
+
+ while (current_event_skb) {
+ dev_kfree_skb_any(current_event_skb);
+ current_event_skb = skb_dequeue(event_queue);
+ }
+}
+
+void qtnf_trans_free(struct qtnf_bus *bus)
+{
+ if (!bus) {
+ pr_err("invalid bus pointer\n");
+ return;
+ }
+
+ qtnf_trans_free_events(bus);
+}
+
+int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+ const struct qlink_msg_header *header = (void *)skb->data;
+ int ret = -1;
+
+ if (unlikely(skb->len < sizeof(*header))) {
+ pr_warn("packet is too small: %u\n", skb->len);
+ dev_kfree_skb(skb);
+ return -EINVAL;
+ }
+
+ if (unlikely(skb->len != le16_to_cpu(header->len))) {
+ pr_warn("cmd reply length mismatch: %u != %u\n",
+ skb->len, le16_to_cpu(header->len));
+ dev_kfree_skb(skb);
+ return -EFAULT;
+ }
+
+ switch (le16_to_cpu(header->type)) {
+ case QLINK_MSG_TYPE_CMDRSP:
+ if (unlikely(skb->len < sizeof(struct qlink_cmd))) {
+ pr_warn("cmd reply too short: %u\n", skb->len);
+ dev_kfree_skb(skb);
+ break;
+ }
+
+ qtnf_trans_signal_cmdresp(bus, skb);
+ break;
+ case QLINK_MSG_TYPE_EVENT:
+ if (unlikely(skb->len < sizeof(struct qlink_event))) {
+ pr_warn("event too short: %u\n", skb->len);
+ dev_kfree_skb(skb);
+ break;
+ }
+
+ ret = qtnf_trans_event_enqueue(bus, skb);
+ break;
+ default:
+ pr_warn("unknown packet type: %x\n", le16_to_cpu(header->type));
+ dev_kfree_skb(skb);
+ break;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(qtnf_trans_handle_rx_ctl_packet);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.h b/drivers/net/wireless/quantenna/qtnfmac/trans.h
new file mode 100644
index 0000000..9a473e0
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/trans.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _QTN_FMAC_TRANS_H_
+#define _QTN_FMAC_TRANS_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/mutex.h>
+
+#include "qlink.h"
+
+#define QTNF_CMD_FLAG_RESP_REQ BIT(0)
+
+#define QTNF_MAX_CMD_BUF_SIZE 2048
+#define QTNF_DEF_CMD_HROOM 4
+
+struct qtnf_bus;
+
+struct qtnf_cmd_ctl_node {
+ struct completion cmd_resp_completion;
+ struct sk_buff *resp_skb;
+ u16 seq_num;
+ bool waiting_for_resp;
+ spinlock_t resp_lock; /* lock for resp_skb & waiting_for_resp changes */
+};
+
+struct qtnf_qlink_transport {
+ struct qtnf_cmd_ctl_node curr_cmd;
+ struct sk_buff_head event_queue;
+ size_t event_queue_max_len;
+};
+
+void qtnf_trans_init(struct qtnf_bus *bus);
+void qtnf_trans_free(struct qtnf_bus *bus);
+
+int qtnf_trans_send_next_cmd(struct qtnf_bus *bus);
+int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb);
+int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus,
+ struct sk_buff *cmd_skb,
+ struct sk_buff **response_skb);
+
+#endif /* _QTN_FMAC_TRANS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.c b/drivers/net/wireless/quantenna/qtnfmac/util.c
new file mode 100644
index 0000000..ed38e87
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2015-2016 Quantenna Communications, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "util.h"
+
+void qtnf_sta_list_init(struct qtnf_sta_list *list)
+{
+ if (unlikely(!list))
+ return;
+
+ INIT_LIST_HEAD(&list->head);
+ atomic_set(&list->size, 0);
+}
+
+struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,
+ const u8 *mac)
+{
+ struct qtnf_sta_node *node;
+
+ if (unlikely(!mac))
+ return NULL;
+
+ list_for_each_entry(node, &list->head, list) {
+ if (ether_addr_equal(node->mac_addr, mac))
+ return node;
+ }
+
+ return NULL;
+}
+
+struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list,
+ size_t index)
+{
+ struct qtnf_sta_node *node;
+
+ if (qtnf_sta_list_size(list) <= index)
+ return NULL;
+
+ list_for_each_entry(node, &list->head, list) {
+ if (index-- == 0)
+ return node;
+ }
+
+ return NULL;
+}
+
+struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_sta_list *list,
+ const u8 *mac)
+{
+ struct qtnf_sta_node *node;
+
+ if (unlikely(!mac))
+ return NULL;
+
+ node = qtnf_sta_list_lookup(list, mac);
+
+ if (node)
+ goto done;
+
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (unlikely(!node))
+ goto done;
+
+ ether_addr_copy(node->mac_addr, mac);
+ list_add_tail(&node->list, &list->head);
+ atomic_inc(&list->size);
+
+done:
+ return node;
+}
+
+bool qtnf_sta_list_del(struct qtnf_sta_list *list, const u8 *mac)
+{
+ struct qtnf_sta_node *node;
+ bool ret = false;
+
+ node = qtnf_sta_list_lookup(list, mac);
+
+ if (node) {
+ list_del(&node->list);
+ atomic_dec(&list->size);
+ kfree(node);
+ ret = true;
+ }
+
+ return ret;
+}
+
+void qtnf_sta_list_free(struct qtnf_sta_list *list)
+{
+ struct qtnf_sta_node *node, *tmp;
+
+ atomic_set(&list->size, 0);
+
+ list_for_each_entry_safe(node, tmp, &list->head, list) {
+ list_del(&node->list);
+ kfree(node);
+ }
+
+ INIT_LIST_HEAD(&list->head);
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.h b/drivers/net/wireless/quantenna/qtnfmac/util.h
new file mode 100644
index 0000000..0359eae
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015 Quantenna Communications
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef QTNFMAC_UTIL_H
+#define QTNFMAC_UTIL_H
+
+#include <linux/kernel.h>
+#include "core.h"
+
+void qtnf_sta_list_init(struct qtnf_sta_list *list);
+
+struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,
+ const u8 *mac);
+struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list,
+ size_t index);
+struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_sta_list *list,
+ const u8 *mac);
+bool qtnf_sta_list_del(struct qtnf_sta_list *list, const u8 *mac);
+
+void qtnf_sta_list_free(struct qtnf_sta_list *list);
+
+static inline size_t qtnf_sta_list_size(const struct qtnf_sta_list *list)
+{
+ return atomic_read(&list->size);
+}
+
+static inline bool qtnf_sta_list_empty(const struct qtnf_sta_list *list)
+{
+ return list_empty(&list->head);
+}
+
+#endif /* QTNFMAC_UTIL_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
[not found] <1478700000-11624-1-git-send-email-igor.mitsyanko.os@quantenna.com>
2016-11-09 14:00 ` [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets igor.mitsyanko.os
@ 2016-11-09 15:56 ` Johannes Berg
[not found] ` <2fcb5f28-808e-f296-7e91-e5185e7577c9@quantenna.com>
1 sibling, 1 reply; 30+ messages in thread
From: Johannes Berg @ 2016-11-09 15:56 UTC (permalink / raw)
To: igor.mitsyanko.os
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 2016-11-09 14:59, igor.mitsyanko.os@quantenna.com wrote:
>
> [...]
So I'm told this thing actually runs a full Linux, and consequently is
(or at least contains) GPL code.
With the carl9170 driver, the GPL firmware was required to be put as
buildable source code into the linux-firmware tree.
What should happen here? I expect the sources for this to be pretty big
unlike carl9170 (1.1MB source).
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
[not found] ` <2fcb5f28-808e-f296-7e91-e5185e7577c9@quantenna.com>
@ 2016-11-09 21:05 ` Johannes Berg
2016-11-10 14:02 ` IgorMitsyanko
0 siblings, 1 reply; 30+ messages in thread
From: Johannes Berg @ 2016-11-09 21:05 UTC (permalink / raw)
To: IgorMitsyanko
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil
> > With the carl9170 driver, the GPL firmware was required to be put
> > as buildable source code into the linux-firmware tree.
> An SDK that can be used to build QSR10G firmware is a ~240MB file in
> compressed archive format, it includes GPL code as well as
> proprietary components.
> Our legal team included following clause in licence file coming with
> firmware:
> Information regarding the Open Source Components included with the
> Software is available upon request to oslegal@quantenna.com
> So the idea is that GPL components used in firmware can be provided
> on request.
I understand, and I understand that you/they are actually providing it
when asked.
However, the carl9170 project has its (entirely GPL) source tree out in
the open, making it much *easier* and that was *still* thought to not
be sufficient; I don't recall the discussions but I'm guessing that's
because of something like redistributors having to make sure source is
available, and guaranteeing that for a long time, etc.
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-09 21:05 ` Johannes Berg
@ 2016-11-10 14:02 ` IgorMitsyanko
2016-11-11 11:35 ` Johannes Berg
0 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-10 14:02 UTC (permalink / raw)
To: Johannes Berg
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 11/10/2016 12:05 AM, Johannes Berg wrote:
> I understand, and I understand that you/they are actually providing it
> when asked.
>
> However, the carl9170 project has its (entirely GPL) source tree out in
> the open, making it much *easier* and that was *still* thought to not
> be sufficient; I don't recall the discussions but I'm guessing that's
> because of something like redistributors having to make sure source is
> available, and guaranteeing that for a long time, etc.
>
> johannes
Johannes, from that perspective, who are the "redistributors"?
Specifically, is linux-firmware git
repository considered a redistributor or its just hosting files? I mean,
at what moment
someone else other then Quantenna will start to be legally obliged to
make GPL code
used in firmware available for others?
Personally I still hope that linux-firmware itself is not legally
concerned with what is the content of
firmware its hosting, but looks like there already was a precedent case
with carl9170 driver and
we have to somehow deal with it.
There still may be a difference though: Quantenna is semiconductor
company only, software
used on actual products based on Quantenna chipsets is released by other
companies.
I just want to present our legal team with a clear case (and position of
Linux maintainers) so that they can
work with it and make decision on how to proceed.
From technical perspective, as I mentioned, SDK is quite huge and
include a lot of opensource
components including full Linux, I don't think its reasonable to have it
inside linux-firmware tree.
What are the options to share it other then providing it on request basis:
- git repository
- store tarball somewhere on official website
Thanks!
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-10 14:02 ` IgorMitsyanko
@ 2016-11-11 11:35 ` Johannes Berg
2016-11-14 8:26 ` IgorMitsyanko
2016-11-22 14:44 ` IgorMitsyanko
0 siblings, 2 replies; 30+ messages in thread
From: Johannes Berg @ 2016-11-11 11:35 UTC (permalink / raw)
To: IgorMitsyanko
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil,
Ben Hutchings, Kyle McMartin
Adding linux-firmware people to Cc, since presumably they don't
necessarily read linux-wireless...
> Johannes, from that perspective, who are the "redistributors"?
> Specifically, is linux-firmware git repository considered a
> redistributor or its just hosting files? I mean, at what moment
> someone else other then Quantenna will start to be legally obliged to
> make GPL code used in firmware available for others?
Look, I don't know. I'd assume people who ship it, like any regular
distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
images come with a redistribution license, but that obviously can't
work here.
There's some info from Ben here regarding the carl9170 case:
http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
> Personally I still hope that linux-firmware itself is not legally
> concerned with what is the content of firmware its hosting, but looks
> like there already was a precedent case with carl9170 driver and
> we have to somehow deal with it.
That's really all I wanted to bring up. I'm not involved with the
linux-firmware git tree.
> There still may be a difference though: Quantenna is semiconductor
> company only, software
> used on actual products based on Quantenna chipsets is released by
> other
> companies.
> I just want to present our legal team with a clear case (and position
> of
> Linux maintainers) so that they can
> work with it and make decision on how to proceed.
>
> From technical perspective, as I mentioned, SDK is quite huge and
> include a lot of opensource
> components including full Linux, I don't think its reasonable to have
> it
> inside linux-firmware tree.
> What are the options to share it other then providing it on request
> basis:
> - git repository
> - store tarball somewhere on official website
Clearly that wasn't deemed appropriate for carl9170, so I don't see why
it'd be different here.
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-11 11:35 ` Johannes Berg
@ 2016-11-14 8:26 ` IgorMitsyanko
2016-11-14 9:40 ` Johannes Berg
2016-11-23 15:25 ` Kalle Valo
2016-11-22 14:44 ` IgorMitsyanko
1 sibling, 2 replies; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-14 8:26 UTC (permalink / raw)
To: Johannes Berg
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil,
Ben Hutchings, Kyle McMartin
Thanks, Johannes.
To clarify with you and Kalle, as persons involved with linux-wireless:
is my understanding correct that submitting firmware into linux-fimware
repository is a prerequisite to accepting new driver into linux-wireless?
There is an option to start Quantenna device from internal flash memory,
no external binary files involved. If we will introduce this
functionality and remove code handling external firmware for now (until
firmware problem resolved), would that allow driver to be reviewed/accepted?
On 11/11/2016 02:35 PM, Johannes Berg wrote:
> Adding linux-firmware people to Cc, since presumably they don't
> necessarily read linux-wireless...
>
>> Johannes, from that perspective, who are the "redistributors"?
>> Specifically, is linux-firmware git repository considered a
>> redistributor or its just hosting files? I mean, at what moment
>> someone else other then Quantenna will start to be legally obliged to
>> make GPL code used in firmware available for others?
> Look, I don't know. I'd assume people who ship it, like any regular
> distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
> images come with a redistribution license, but that obviously can't
> work here.
>
> There's some info from Ben here regarding the carl9170 case:
> http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
>
>> Personally I still hope that linux-firmware itself is not legally
>> concerned with what is the content of firmware its hosting, but looks
>> like there already was a precedent case with carl9170 driver and
>> we have to somehow deal with it.
> That's really all I wanted to bring up. I'm not involved with the
> linux-firmware git tree.
>
>> There still may be a difference though: Quantenna is semiconductor
>> company only, software
>> used on actual products based on Quantenna chipsets is released by
>> other
>> companies.
>> I just want to present our legal team with a clear case (and position
>> of
>> Linux maintainers) so that they can
>> work with it and make decision on how to proceed.
>>
>> From technical perspective, as I mentioned, SDK is quite huge and
>> include a lot of opensource
>> components including full Linux, I don't think its reasonable to have
>> it
>> inside linux-firmware tree.
>> What are the options to share it other then providing it on request
>> basis:
>> - git repository
>> - store tarball somewhere on official website
> Clearly that wasn't deemed appropriate for carl9170, so I don't see why
> it'd be different here.
>
> johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-14 8:26 ` IgorMitsyanko
@ 2016-11-14 9:40 ` Johannes Berg
2016-11-23 15:25 ` Kalle Valo
1 sibling, 0 replies; 30+ messages in thread
From: Johannes Berg @ 2016-11-14 9:40 UTC (permalink / raw)
To: IgorMitsyanko
Cc: linux-wireless, btherthala, hwang, smaksimenko, dlebed,
Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich, Avinash Patil,
Ben Hutchings, Kyle McMartin
On Mon, 2016-11-14 at 11:26 +0300, IgorMitsyanko wrote:
> Thanks, Johannes.
>
> To clarify with you and Kalle, as persons involved with linux-
> wireless: is my understanding correct that submitting firmware into
> linux-fimware repository is a prerequisite to accepting new driver
> into linux-wireless?
I personally don't think it needs to be quite that strict, but I don't
think I've heard anyone else express an opinion either way.
Frankly, so far I only commented on the firmware patch because I
haven't had time to go over the driver code at all.
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
2016-11-09 14:00 ` [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets igor.mitsyanko.os
@ 2016-11-14 9:52 ` Johannes Berg
[not found] ` <62102ba6-cae0-f00d-f989-3f2e9ea43d9b@quantenna.com>
2016-11-15 9:06 ` Johannes Berg
1 sibling, 1 reply; 30+ messages in thread
From: Johannes Berg @ 2016-11-14 9:52 UTC (permalink / raw)
To: igor.mitsyanko.os, linux-wireless
Cc: btherthala, hwang, smaksimenko, dlebed, Sergey Matyukevich,
Kamlesh Rath, Avinash Patil
> +++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
> @@ -0,0 +1,23 @@
> +config QTNFMAC
> + tristate "Quantenna WiFi FullMAC WLAN driver"
> + default n
No need to state that default explicitly, but it also doesn't really
matter.
> + it as a module, it will be called qtnfmac_pearl_pcie.ko.
Where did the "pearl" come from? You didn't mention that in the commit
log.
Also, are you planning to add any other things to this soon? It seems
to me that perhaps the PCIe option should be the only one that's user-
visible, selecting the other one internally?
> + struct qtnf_bus_ops *bus_ops;
You should make that const and actually make all instances const, it's
better for security :)
> +/* Supported crypto cipher suits to be advertised to cfg80211 */
> +static const u32 qtnf_cipher_suites[] = {
> + WLAN_CIPHER_SUITE_TKIP,
> + WLAN_CIPHER_SUITE_CCMP,
> + WLAN_CIPHER_SUITE_AES_CMAC,
> +};
I'm surprised - no WEP? No CMAC and GCMP/GMAC?
> +static int
> +qtnf_change_virtual_intf(struct wiphy *wiphy,
> + struct net_device *dev,
> + enum nl80211_iftype type, u32 *flags,
> + struct vif_params *params)
> +{
> + struct qtnf_vif *vif;
> + u8 *mac_addr;
> +
> + vif = qtnf_netdev_get_priv(dev);
> +
> + if (params)
> + mac_addr = params->macaddr;
> + else
> + mac_addr = NULL;
> +
> + if (qtnf_cmd_send_change_intf_type(vif, type, mac_addr)) {
> + pr_err("failed to change interface type\n");
> + return -EFAULT;
Maybe -EIO would be better.
> +struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
> + const char *name,
> + unsigned char
> name_assign_type,
> + enum nl80211_iftype type,
> + u32 *flags,
> + struct vif_params
> *params)
> +{
> + struct qtnf_wmac *mac;
> + struct qtnf_vif *vif;
> + u8 *mac_addr = NULL;
> +
> + mac = wiphy_priv(wiphy);
> +
> + if (!mac)
> + return ERR_PTR(-EFAULT);
> +
> + switch (type) {
> + case NL80211_IFTYPE_STATION:
> + case NL80211_IFTYPE_AP:
> + vif = qtnf_get_free_vif(mac);
> + if (!vif) {
> + pr_err("could not get free private
> structure\n");
> + return ERR_PTR(-EFAULT);
> + }
This is probably fairly natural to do, and it's not the first driver to
do this (brcmfmac also does), but some users may assume that they can
add interfaces as much as they want, until they bring them up (netdev
open).
It's probably worth having a discussion about this behaviour difference
- not necessarily in the context of this driver submission though.
> + if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) {
> + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
> + pr_err("failed to send add_intf command\n");
> + return ERR_PTR(-EFAULT);
I can't really tell, does this leak "vif"?
OK I need to find another way to review this patch now, it's too big
for my email client to work responsively...
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
2016-11-09 14:00 ` [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets igor.mitsyanko.os
2016-11-14 9:52 ` Johannes Berg
@ 2016-11-15 9:06 ` Johannes Berg
2016-11-16 16:47 ` IgorMitsyanko
1 sibling, 1 reply; 30+ messages in thread
From: Johannes Berg @ 2016-11-15 9:06 UTC (permalink / raw)
To: igor.mitsyanko.os, linux-wireless
Cc: btherthala, hwang, smaksimenko, dlebed, Sergey Matyukevich,
Kamlesh Rath, Avinash Patil
On Wed, 2016-11-09 at 17:00 +0300, igor.mitsyanko.os@quantenna.com
wrote:
> +static int
> +qtnf_change_virtual_intf(struct wiphy *wiphy,
> + struct net_device *dev,
> + enum nl80211_iftype type, u32 *flags,
> + struct vif_params *params)
> +{
> + struct qtnf_vif *vif;
> + u8 *mac_addr;
> +
> + vif = qtnf_netdev_get_priv(dev);
> +
> + if (params)
> + mac_addr = params->macaddr;
> + else
> + mac_addr = NULL;
> +
> + if (qtnf_cmd_send_change_intf_type(vif, type, mac_addr)) {
> + pr_err("failed to change interface type\n");
> + return -EFAULT;
> + }
> +
> + vif->wdev.iftype = type;
> + return 0;
> +}
Do you really support arbitrary type changes?
You might even have to handle ongoing scans, etc.
> + /* Clear the vif in mac */
"mac"? Maybe you mean cfg80211?
> + vif->netdev->ieee80211_ptr = NULL;
> + vif->netdev = NULL;
> + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
> + eth_zero_addr(vif->mac_addr);
> +
> + return 0;
> +}
But I'm not sure this makes sense? You're not actually deleting the
interface here, so why sever all the links/clear all the data?
> +/* concatenate all the beacon IEs into one buffer
> + * Take IEs from head, tail and beacon_ies fields of
cfg80211_beacon_data
> + * and append it to provided buffer.
> + * Checks total IE buf length to be <= than IEEE80211_MAX_DATA_LEN.
> + * Checks IE buffers to be valid, so that resulting buffer
> + * should be a valid IE buffer with length <=
IEEE80211_MAX_DATA_LEN.
> + */
I'm not sure this is right - beacon_ies is head+tail already, I think?
> +static int
> +qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
> + int idx, u8 *mac, struct station_info *sinfo)
> +{
> + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
> + const struct qtnf_sta_node *sta_node;
> + int ret;
> +
> + sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
> +
> + if (unlikely(!sta_node))
> + return -ENOENT;
> +
> + ether_addr_copy(mac, sta_node->mac_addr);
> +
> + ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo);
> +
> + if (unlikely(ret == -ENOENT)) {
> + sinfo->filled = 0;
> + ret = 0;
> + }
This case seems slightly odd - what does it mean that the station
existed, but getting the information returned -ENOENT? Is that because
it's racy, somehow? If so, wouldn't it be better to take this as an
indication that the station doesn't exist, and skip this entry entirely
or something?
> + /* nofity cfg80211 */
typo :)
> + while (payload_len >= sizeof(struct qlink_tlv_hdr)) {
> + tlv_type = le16_to_cpu(tlv->type);
> + tlv_value_len = le16_to_cpu(tlv->len);
> + tlv_full_len = tlv_value_len + sizeof(struct
qlink_tlv_hdr);
> +
> + if (tlv_full_len > payload_len) {
> + pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
> + tlv_type, tlv_value_len);
> + return -EINVAL;
> + }
> +
> + if (tlv_type == QTN_TLV_ID_IE_SET) {
> + ies = tlv->val;
> + ies_len = tlv_value_len;
> + }
> +
> + payload_len -= tlv_full_len;
> + tlv = (struct qlink_tlv_hdr *)(tlv->val +
tlv_value_len);
> + }
> +
> + if (payload_len) {
> + pr_warn("malformed IEs buf; bytes left: %zu\n",
payload_len);
> + return -EINVAL;
> + }
Don't you mean "malformed TLVs buf"? It's obviously similar, but you
refer to this encoding as TLV, not IE.
Maybe you should ignore it too, since it's a firmware bug?
> + qdev_vif = netdev_priv(dev);
> + *((unsigned long *)qdev_vif) = (unsigned long)vif;
This seems very strange - why unsigned long, rather than void? I mean
*(void **)qdev_vif = vif;
> +static int qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv)
> +{
> + struct qtnf_shm_ipc_region __iomem *ipc_tx_reg;
> + struct qtnf_shm_ipc_region __iomem *ipc_rx_reg;
> + const struct qtnf_shm_ipc_int ipc_int = {
qtnf_ipc_gen_ep_int, priv };
> + const struct qtnf_shm_ipc_rx_callback rx_callback = {
> + qtnf_pcie_control_rx_callbac
k, priv };
If those are const, why not also static? In fact, it seems they really
should be, since they're registered below?
> +static int alloc_bd_table(struct qtnf_pcie_bus_priv *priv)
> +{
> + unsigned long vaddr;
> + dma_addr_t paddr;
> + int len;
> +
> + len = priv->tx_bd_num * sizeof(struct qtnf_tx_bd) +
> + priv->rx_bd_num * sizeof(struct qtnf_rx_bd);
> +
> + vaddr = (unsigned long)dmam_alloc_coherent(&priv->pdev->dev,
> + len, &paddr,
GFP_KERNEL);
> + if (!vaddr)
> + return -ENOMEM;
> +
> + /* tx bd */
> +
> + memset((void *)vaddr, 0, len);
Those unsigned long/void * casts look strange too. Why not use a "void
*vaddr" to start with?
> + priv->bd_table_vaddr = vaddr;
Maybe need a cast here, if that variable is needed at all (identical to
tx_bd_vbase), or make that struct member also void *?
> + priv->bd_table_paddr = paddr;
> + priv->bd_table_len = len;
> +
> + priv->tx_bd_vbase = (struct qtnf_tx_bd *)vaddr;
Don't even need that cast then.
> + priv->tx_bd_pbase = paddr;
> +
> + pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n",
> + (void *)vaddr, &paddr);
> +
> + priv->tx_bd_reclaim_start = 0;
> + priv->tx_bd_index = 0;
> + priv->tx_queue_len = 0;
> +
> + /* rx bd */
> +
> + vaddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
Here you can do something like
vaddr = ((struct qtnf_tx_bd)vaddr) + priv->tx_bd_num;
> + paddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
> +
> + priv->rx_bd_vbase = (struct qtnf_rx_bd *)vaddr;
no need for the cast here then.
> + priv->rx_bd_pbase = paddr;
> +
> + writel(QTN_HOST_LO32(paddr),
> + PCIE_HDP_TX_HOST_Q_BASE_L(priv->pcie_reg_base));
> + writel(QTN_HOST_HI32(paddr),
> + PCIE_HDP_TX_HOST_Q_BASE_H(priv->pcie_reg_base));
> + writel(priv->rx_bd_num | (sizeof(struct qtnf_rx_bd)) << 16,
> + PCIE_HDP_TX_HOST_Q_SZ_CTRL(priv->pcie_reg_base));
> +
> + priv->hw_txproc_wr_ptr = priv->rx_bd_num -
rx_bd_reserved_param;
> +
> + writel(priv->hw_txproc_wr_ptr,
> + PCIE_HDP_TX_HOST_Q_WR_PTR(priv->pcie_reg_base));
> +
> + pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n",
> + (void *)vaddr, &paddr);
Nor here.
On the whole, it probably doesn't really matter (I'd let Kalle decide I
guess). Just looks odd to me.
> + /* sync up all descriptor updates before passing them to EP
*/
> + wmb();
I think you need dma_wmb()?
So I mostly looked at the cfg80211 bits, obviously - the other comments
were just in passing.
I also didn't review the flows - some of these things are tricky (e.g.
are there races between userspace asking to disconnect, and disconnect
notification, and similar). Maybe it helps anyway :)
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
2016-11-15 9:06 ` Johannes Berg
@ 2016-11-16 16:47 ` IgorMitsyanko
2016-11-17 7:54 ` Johannes Berg
0 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-16 16:47 UTC (permalink / raw)
To: Johannes Berg, linux-wireless
Cc: btherthala, hwang, smaksimenko, dlebed, Sergey Matyukevich,
Kamlesh Rath, Avinash Patil
On 11/15/2016 12:06 PM, Johannes Berg wrote:
> On Wed, 2016-11-09 at 17:00 +0300, igor.mitsyanko.os@quantenna.com
> wrote:
>
>> +static int
>> +qtnf_change_virtual_intf(struct wiphy *wiphy,
>> + struct net_device *dev,
>> + enum nl80211_iftype type, u32 *flags,
>> + struct vif_params *params)
>> +{
>> + struct qtnf_vif *vif;
>> + u8 *mac_addr;
>> +
>> + vif = qtnf_netdev_get_priv(dev);
>> +
>> + if (params)
>> + mac_addr = params->macaddr;
>> + else
>> + mac_addr = NULL;
>> +
>> + if (qtnf_cmd_send_change_intf_type(vif, type, mac_addr)) {
>> + pr_err("failed to change interface type\n");
>> + return -EFAULT;
>> + }
>> +
>> + vif->wdev.iftype = type;
>> + return 0;
>> +}
> Do you really support arbitrary type changes?
We do, only if there are no secondary BSSIDs exist on a physical radio
in AP mode (MBSS is not active).
>
> You might even have to handle ongoing scans, etc.
Point taken, will review how we handle scans and other ongoing
operations. I guess in case of ongoing operation, we can return "busy"
error on attempt to change interface type.
>
>> + /* Clear the vif in mac */
> "mac"? Maybe you mean cfg80211?
It meant to indicate that "vif" is part of "struct qtnf_wmac". I think
we should remove this comment, don't see how it helps.
>
>> + vif->netdev->ieee80211_ptr = NULL;
>> + vif->netdev = NULL;
>> + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
>> + eth_zero_addr(vif->mac_addr);
>> +
>> + return 0;
>> +}
> But I'm not sure this makes sense? You're not actually deleting the
> interface here, so why sever all the links/clear all the data?
Setting "iftype = NL80211_IFTYPE_UNSPECIFIED" effectively marks
interface as free to use. Clearing all the data should not be strictly
necessary, but should help catch bugs in case inteface that was "freed"
is used by someone.
>
>
>> +/* concatenate all the beacon IEs into one buffer
>> + * Take IEs from head, tail and beacon_ies fields of
> cfg80211_beacon_data
>> + * and append it to provided buffer.
>> + * Checks total IE buf length to be <= than IEEE80211_MAX_DATA_LEN.
>> + * Checks IE buffers to be valid, so that resulting buffer
>> + * should be a valid IE buffer with length <=
> IEEE80211_MAX_DATA_LEN.
>> + */
> I'm not sure this is right - beacon_ies is head+tail already, I think?
Looking at hostapd sources, looks like you're right. Though it's not
immediately obvious.. Will review the code and handle this correctly.
>
>> +static int
>> +qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
>> + int idx, u8 *mac, struct station_info *sinfo)
>> +{
>> + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
>> + const struct qtnf_sta_node *sta_node;
>> + int ret;
>> +
>> + sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
>> +
>> + if (unlikely(!sta_node))
>> + return -ENOENT;
>> +
>> + ether_addr_copy(mac, sta_node->mac_addr);
>> +
>> + ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo);
>> +
>> + if (unlikely(ret == -ENOENT)) {
>> + sinfo->filled = 0;
>> + ret = 0;
>> + }
> This case seems slightly odd - what does it mean that the station
> existed, but getting the information returned -ENOENT? Is that because
> it's racy, somehow? If so, wouldn't it be better to take this as an
> indication that the station doesn't exist, and skip this entry entirely
> or something?
I see two possibilities here:
- it's possible that STAs will exit on device side while we're
processing dump_station(), and because commands and events processing is
serialized, driver will not know about that yet;
- it's a bug in state synchronization between driver and device
In both cases, I agree that we better to remove STAs from the list here
if returned ENOENT.
>
>> + /* nofity cfg80211 */
> typo :)
Will fix)
>
>> + while (payload_len >= sizeof(struct qlink_tlv_hdr)) {
>> + tlv_type = le16_to_cpu(tlv->type);
>> + tlv_value_len = le16_to_cpu(tlv->len);
>> + tlv_full_len = tlv_value_len + sizeof(struct
> qlink_tlv_hdr);
>> +
>> + if (tlv_full_len > payload_len) {
>> + pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
>> + tlv_type, tlv_value_len);
>> + return -EINVAL;
>> + }
>> +
>> + if (tlv_type == QTN_TLV_ID_IE_SET) {
>> + ies = tlv->val;
>> + ies_len = tlv_value_len;
>> + }
>> +
>> + payload_len -= tlv_full_len;
>> + tlv = (struct qlink_tlv_hdr *)(tlv->val +
> tlv_value_len);
>> + }
>> +
>> + if (payload_len) {
>> + pr_warn("malformed IEs buf; bytes left: %zu\n",
> payload_len);
>> + return -EINVAL;
>> + }
> Don't you mean "malformed TLVs buf"? It's obviously similar, but you
> refer to this encoding as TLV, not IE.
>
> Maybe you should ignore it too, since it's a firmware bug?
Agree, will change to "TLV". As for ignoring or not, there is probably
no harm in returning error if something went the way we did not expect,
since we do not do any parameters values validation we can at least
validate buffer integrity itself.
>
>> + qdev_vif = netdev_priv(dev);
>> + *((unsigned long *)qdev_vif) = (unsigned long)vif;
> This seems very strange - why unsigned long, rather than void? I mean
>
> *(void **)qdev_vif = vif;
Will fix.
>
>> +static int qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv)
>> +{
>> + struct qtnf_shm_ipc_region __iomem *ipc_tx_reg;
>> + struct qtnf_shm_ipc_region __iomem *ipc_rx_reg;
>> + const struct qtnf_shm_ipc_int ipc_int = {
> qtnf_ipc_gen_ep_int, priv };
>> + const struct qtnf_shm_ipc_rx_callback rx_callback = {
>> + qtnf_pcie_control_rx_callbac
> k, priv };
>
> If those are const, why not also static? In fact, it seems they really
> should be, since they're registered below?
Later qtnf_shm_ipc_init() will make a full copy of rx_callback (which
actually only contains two pointers), it does not expect it to have
static time of live, so no point in statically allocating it.
>
>> +static int alloc_bd_table(struct qtnf_pcie_bus_priv *priv)
>> +{
>> + unsigned long vaddr;
>> + dma_addr_t paddr;
>> + int len;
>> +
>> + len = priv->tx_bd_num * sizeof(struct qtnf_tx_bd) +
>> + priv->rx_bd_num * sizeof(struct qtnf_rx_bd);
>> +
>> + vaddr = (unsigned long)dmam_alloc_coherent(&priv->pdev->dev,
>> + len, &paddr,
> GFP_KERNEL);
>> + if (!vaddr)
>> + return -ENOMEM;
>> +
>> + /* tx bd */
>> +
>> + memset((void *)vaddr, 0, len);
> Those unsigned long/void * casts look strange too. Why not use a "void
> *vaddr" to start with?
Will review these
>
>> + priv->bd_table_vaddr = vaddr;
> Maybe need a cast here, if that variable is needed at all (identical to
> tx_bd_vbase), or make that struct member also void *?
>
>> + priv->bd_table_paddr = paddr;
>> + priv->bd_table_len = len;
>> +
>> + priv->tx_bd_vbase = (struct qtnf_tx_bd *)vaddr;
> Don't even need that cast then.
>
>> + priv->tx_bd_pbase = paddr;
>> +
>> + pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n",
>> + (void *)vaddr, &paddr);
>> +
>> + priv->tx_bd_reclaim_start = 0;
>> + priv->tx_bd_index = 0;
>> + priv->tx_queue_len = 0;
>> +
>> + /* rx bd */
>> +
>> + vaddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
> Here you can do something like
>
> vaddr = ((struct qtnf_tx_bd)vaddr) + priv->tx_bd_num;
>
>> + paddr += priv->tx_bd_num * sizeof(struct qtnf_tx_bd);
>> +
>> + priv->rx_bd_vbase = (struct qtnf_rx_bd *)vaddr;
> no need for the cast here then.
Ok, we will review to see how to make this code prettier.
>
>> + priv->rx_bd_pbase = paddr;
>> +
>> + writel(QTN_HOST_LO32(paddr),
>> + PCIE_HDP_TX_HOST_Q_BASE_L(priv->pcie_reg_base));
>> + writel(QTN_HOST_HI32(paddr),
>> + PCIE_HDP_TX_HOST_Q_BASE_H(priv->pcie_reg_base));
>> + writel(priv->rx_bd_num | (sizeof(struct qtnf_rx_bd)) << 16,
>> + PCIE_HDP_TX_HOST_Q_SZ_CTRL(priv->pcie_reg_base));
>> +
>> + priv->hw_txproc_wr_ptr = priv->rx_bd_num -
> rx_bd_reserved_param;
>> +
>> + writel(priv->hw_txproc_wr_ptr,
>> + PCIE_HDP_TX_HOST_Q_WR_PTR(priv->pcie_reg_base));
>> +
>> + pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n",
>> + (void *)vaddr, &paddr);
> Nor here.
>
> On the whole, it probably doesn't really matter (I'd let Kalle decide I
> guess). Just looks odd to me.
>
>> + /* sync up all descriptor updates before passing them to EP
> */
>> + wmb();
> I think you need dma_wmb()?
Looks like it, based on documentation. Will confirm and change, if
necessary.
>
>
> So I mostly looked at the cfg80211 bits, obviously - the other comments
> were just in passing.
>
> I also didn't review the flows - some of these things are tricky (e.g.
> are there races between userspace asking to disconnect, and disconnect
> notification, and similar). Maybe it helps anyway :)
The idea we used for flow synchronization is that all commands/events
processing is serialized with RTNL mutex. Not very smart approach, but
simple and in fact can be enough (there are not too much
commands/notifications going on anyway). In the future it is possible to
move to a more fine-grained locking.
Thanks for reviewing this, Johannes!
>
> johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
[not found] ` <62102ba6-cae0-f00d-f989-3f2e9ea43d9b@quantenna.com>
@ 2016-11-16 16:50 ` IgorMitsyanko
2016-11-17 8:51 ` Johannes Berg
0 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-16 16:50 UTC (permalink / raw)
To: linux-wireless
Resending because previous attempt was rejected by vger.kernel.org
On 11/16/2016 06:04 PM, IgorMitsyanko wrote:
> On 11/14/2016 12:52 PM, Johannes Berg wrote:
>>> +++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
>>> @@ -0,0 +1,23 @@
>>> +config QTNFMAC
>>> + tristate "Quantenna WiFi FullMAC WLAN driver"
>>> + default n
>> No need to state that default explicitly, but it also doesn't really
>> matter.
>>
>>> + it as a module, it will be called qtnfmac_pearl_pcie.ko.
>> Where did the "pearl" come from? You didn't mention that in the commit
>> log.
>
> Module name was changed to address future support for another device.
> And I forgot to modify commit message accordingly.
>
>> Also, are you planning to add any other things to this soon? It seems
>> to me that perhaps the PCIe option should be the only one that's user-
>> visible, selecting the other one internally?
>
> Yes, I think it actually makes sense; another option is useless
> without PCIe anyway.
>
>>> + struct qtnf_bus_ops *bus_ops;
>> You should make that const and actually make all instances const, it's
>> better for security :)
>
> Ok, will review this and add const where possible.
>
>>> +/* Supported crypto cipher suits to be advertised to cfg80211 */
>>> +static const u32 qtnf_cipher_suites[] = {
>>> + WLAN_CIPHER_SUITE_TKIP,
>>> + WLAN_CIPHER_SUITE_CCMP,
>>> + WLAN_CIPHER_SUITE_AES_CMAC,
>>> +};
>> I'm surprised - no WEP? No CMAC and GCMP/GMAC?
>
> For now we only advertise suits that we actually verified; HW supports
> CCMP/GCMP-128/256 which we plan to enable in followup patches.
> For WEP support, company decision was to drop WEP support from SW
> altogether since it does not provide security anyway, and we can reuse
> HW resources to support more clients instead.
>
>>
>>> +static int
>>> +qtnf_change_virtual_intf(struct wiphy *wiphy,
>>> + struct net_device *dev,
>>> + enum nl80211_iftype type, u32 *flags,
>>> + struct vif_params *params)
>>> +{
>>> + struct qtnf_vif *vif;
>>> + u8 *mac_addr;
>>> +
>>> + vif = qtnf_netdev_get_priv(dev);
>>> +
>>> + if (params)
>>> + mac_addr = params->macaddr;
>>> + else
>>> + mac_addr = NULL;
>>> +
>>> + if (qtnf_cmd_send_change_intf_type(vif, type, mac_addr)) {
>>> + pr_err("failed to change interface type\n");
>>> + return -EFAULT;
>> Maybe -EIO would be better.
>
> Ok
>
>>> +struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
>>> + const char *name,
>>> + unsigned char
>>> name_assign_type,
>>> + enum nl80211_iftype type,
>>> + u32 *flags,
>>> + struct vif_params
>>> *params)
>>> +{
>>> + struct qtnf_wmac *mac;
>>> + struct qtnf_vif *vif;
>>> + u8 *mac_addr = NULL;
>>> +
>>> + mac = wiphy_priv(wiphy);
>>> +
>>> + if (!mac)
>>> + return ERR_PTR(-EFAULT);
>>> +
>>> + switch (type) {
>>> + case NL80211_IFTYPE_STATION:
>>> + case NL80211_IFTYPE_AP:
>>> + vif = qtnf_get_free_vif(mac);
>>> + if (!vif) {
>>> + pr_err("could not get free private
>>> structure\n");
>>> + return ERR_PTR(-EFAULT);
>>> + }
>> This is probably fairly natural to do, and it's not the first driver to
>> do this (brcmfmac also does), but some users may assume that they can
>> add interfaces as much as they want, until they bring them up (netdev
>> open).
>>
>> It's probably worth having a discussion about this behaviour difference
>> - not necessarily in the context of this driver submission though.
>
> Do you mean that default is to allow to dynamically allocate resources
> (add_interface) for as much interfaces as memory allows, but only use
> (allow to open) a limited number of them? This seems like unnecessary
> complication, I can see only one relevant comment in documentation to
> "struct ieee80211_iface_combination" that does not clarify what should
> be the behavior:
>
> * @max_interfaces: maximum number of interfaces in total allowed
> in this
> * group
>
>
>>> + if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) {
>>> + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
>>> + pr_err("failed to send add_intf command\n");
>>> + return ERR_PTR(-EFAULT);
>> I can't really tell, does this leak "vif"?
>
> It frees "vif" in driver by setting "iftype =
> NL80211_IFTYPE_UNSPECIFIED", but does not free it on device side in
> case further operations fail! Will fix.
>
>> OK I need to find another way to review this patch now, it's too big
>> for my email client to work responsively...
>>
>> johannes
>>
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
2016-11-16 16:47 ` IgorMitsyanko
@ 2016-11-17 7:54 ` Johannes Berg
0 siblings, 0 replies; 30+ messages in thread
From: Johannes Berg @ 2016-11-17 7:54 UTC (permalink / raw)
To: IgorMitsyanko, linux-wireless
Cc: btherthala, hwang, smaksimenko, dlebed, Sergey Matyukevich,
Kamlesh Rath, Avinash Patil
> > > +static int qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv
> > > *priv)
> > > +{
> > > + struct qtnf_shm_ipc_region __iomem *ipc_tx_reg;
> > > + struct qtnf_shm_ipc_region __iomem *ipc_rx_reg;
> > > + const struct qtnf_shm_ipc_int ipc_int = {
> > qtnf_ipc_gen_ep_int, priv };
> > >
> > > + const struct qtnf_shm_ipc_rx_callback rx_callback = {
> > > + qtnf_pcie_control_rx_cal
> > > lbac
> > k, priv };
> >
> > If those are const, why not also static? In fact, it seems they
> > really
> > should be, since they're registered below?
>
> Later qtnf_shm_ipc_init() will make a full copy of rx_callback (which
> actually only contains two pointers), it does not expect it to have
> static time of live, so no point in statically allocating it.
Ok. Nevertheless, marking it static might reduce binary size - as right
now there are two options for the compiler
1) emit a static variable anyway since it's const - no changes then
2) actually put it on the stack
a) from a static variable - extra memcpy()
b) initialised by code - extra initialisation code
Anyway, it doesn't really matter, just seemed strange to me :)
> The idea we used for flow synchronization is that all commands/events
> processing is serialized with RTNL mutex. Not very smart approach,
> but simple and in fact can be enough (there are not too much
> commands/notifications going on anyway). In the future it is possible
> to move to a more fine-grained locking.
Using the rtnl is probably fine, you've offloaded most things so can't
really expect much to happen on the host. You still might have problems
though - if you get a notification that the device disconnected, while
cfg80211 is already holding the RTNL to disconnect itself, the firmware
would think it's disconnected, the driver wouldn't have processed that
notification yet, and would try to disconnect.
That's just one possible race that we found in the past, and it needs
to be handled in the firmware anyway (basically: don't do anything bad
if asked to disconnect while not connected). :)
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets
2016-11-16 16:50 ` IgorMitsyanko
@ 2016-11-17 8:51 ` Johannes Berg
0 siblings, 0 replies; 30+ messages in thread
From: Johannes Berg @ 2016-11-17 8:51 UTC (permalink / raw)
To: IgorMitsyanko, linux-wireless
> > > It's probably worth having a discussion about this behaviour
> > > difference - not necessarily in the context of this driver
> > > submission though.
> >
> > Do you mean that default is to allow to dynamically allocate
> > resources (add_interface) for as much interfaces as memory allows,
> > but only use (allow to open) a limited number of them?
Correct, this is how mac80211 works.
> > This seems like unnecessary complication,
Well, I don't really know where this came from. I suspect some types of
mode switching cases could benefit from it, say (completely
constructed) your hardware supports either two AP or two clients, but
not AP+client - then to switch from 2xAP to 2xclient you'd have to
destroy one of the interfaces, since you can't mode-switch both at the
same time.
Also, interfaces that are down (should!) have no runtime impact on the
device whatsoever, so it's just a little bit more software complexity
to handle.
I think there may also be cases of cfg80211 doing partial interface
combination enforcement only on interfaces that are up.
> > I can see only one relevant comment in documentation to "struct
> > ieee80211_iface_combination" that does not clarify what should be
> > the behavior:
Agree, we never thought about it since for mac80211 it was always
obvious, and for other drivers the other way seemed obvious - I only
found out about it after the fact :)
I think the mode-switching I outlined above is a slight advantage to
the mac80211 scheme, so I wouldn't want to switch mac80211 to this
other scheme, risking that being seen as an API/ABI regression.
At the same time, having all drivers behave the same way seems somewhat
useful, but the consequence would be all drivers having to adopt the
mac80211 scheme. I can't say how difficult that would be - might be
more difficult than it seems since you couldn't statically allocate
your interface pointers etc. as you do now.
johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-11 11:35 ` Johannes Berg
2016-11-14 8:26 ` IgorMitsyanko
@ 2016-11-22 14:44 ` IgorMitsyanko
2016-11-28 16:34 ` Kyle McMartin
1 sibling, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-22 14:44 UTC (permalink / raw)
To: Ben Hutchings, Kyle McMartin
Cc: Johannes Berg, linux-wireless, btherthala, hwang, smaksimenko,
dlebed, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil
Hi Ben, Kyle,
could you please share what is the position of linux-firmware regarding
firmware binaries that include GPL components? Does it require entire
GPL components codebase be present in linux-firmware tree, or maybe
having this clause in license file is enough:
+Open Source Software. The Software may include components that are licensed
+pursuant to open source software (“Open Source Components”). Information
+regarding the Open Source Components included with the Software is
available
+upon request to oslegal@quantenna.com. To the extent such Open Source
+Components are required to be licensed to you under the terms of a separate
+license (such as an open source license) then such other terms shall
apply, and
+nothing herein shall be deemed or interpreted to limit any rights you
may have
+under any such applicable license.
From technical perspective, size of the codebase used to build
Quantenna firmware is a few hundred MBs, it seems too much to include
into linux-firmware tree.
On 11/11/2016 02:35 PM, Johannes Berg wrote:
> Adding linux-firmware people to Cc, since presumably they don't
> necessarily read linux-wireless...
>
>> Johannes, from that perspective, who are the "redistributors"?
>> Specifically, is linux-firmware git repository considered a
>> redistributor or its just hosting files? I mean, at what moment
>> someone else other then Quantenna will start to be legally obliged to
>> make GPL code used in firmware available for others?
> Look, I don't know. I'd assume people who ship it, like any regular
> distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
> images come with a redistribution license, but that obviously can't
> work here.
>
> There's some info from Ben here regarding the carl9170 case:
> http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
>
>> Personally I still hope that linux-firmware itself is not legally
>> concerned with what is the content of firmware its hosting, but looks
>> like there already was a precedent case with carl9170 driver and
>> we have to somehow deal with it.
> That's really all I wanted to bring up. I'm not involved with the
> linux-firmware git tree.
>
>> There still may be a difference though: Quantenna is semiconductor
>> company only, software
>> used on actual products based on Quantenna chipsets is released by
>> other
>> companies.
>> I just want to present our legal team with a clear case (and position
>> of
>> Linux maintainers) so that they can
>> work with it and make decision on how to proceed.
>>
>> From technical perspective, as I mentioned, SDK is quite huge and
>> include a lot of opensource
>> components including full Linux, I don't think its reasonable to have
>> it
>> inside linux-firmware tree.
>> What are the options to share it other then providing it on request
>> basis:
>> - git repository
>> - store tarball somewhere on official website
> Clearly that wasn't deemed appropriate for carl9170, so I don't see why
> it'd be different here.
>
> johannes
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-14 8:26 ` IgorMitsyanko
2016-11-14 9:40 ` Johannes Berg
@ 2016-11-23 15:25 ` Kalle Valo
2016-11-23 16:45 ` igor.mitsyanko.os
` (2 more replies)
1 sibling, 3 replies; 30+ messages in thread
From: Kalle Valo @ 2016-11-23 15:25 UTC (permalink / raw)
To: IgorMitsyanko
Cc: Johannes Berg, linux-wireless, btherthala, hwang, smaksimenko,
dlebed, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil, Ben Hutchings, Kyle McMartin
IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
> To clarify with you and Kalle, as persons involved with
> linux-wireless: is my understanding correct that submitting firmware
> into linux-fimware repository is a prerequisite to accepting new
> driver into linux-wireless?
In my opinion the most important is that the device is usable with an
upstream driver so that anyone can start using the driver (if they have
the hardware).
> There is an option to start Quantenna device from internal flash
> memory, no external binary files involved. If we will introduce this
> functionality and remove code handling external firmware for now
> (until firmware problem resolved), would that allow driver to be
> reviewed/accepted?
Do all the publically available hardware contain the firmware in
internal flash (flashed in the factory)? Or is this something which must
be installed separately for each board's internal flash by the user?
BTW, the original mail with the firmware image didn't make it to the
list, I guess it was too big? It would be good if you could post the
license separately so that people can see it.
--
Kalle Valo
^ permalink raw reply [flat|nested] 30+ messages in thread
* [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-23 15:25 ` Kalle Valo
@ 2016-11-23 16:45 ` igor.mitsyanko.os
2016-11-23 17:09 ` IgorMitsyanko
2016-12-23 15:12 ` igor.mitsyanko.os
2 siblings, 0 replies; 30+ messages in thread
From: igor.mitsyanko.os @ 2016-11-23 16:45 UTC (permalink / raw)
To: linux-wireless
Cc: johannes, btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil, Igor Mitsyanko
From: Igor Mitsyanko <imitsyanko@quantenna.com>
QSR10G is Quantenna's 8x8, 160M, 11ac WiFi card.
Signed-off-by: Kamlesh Rath <krath@quantenna.com>
Signed-off-by: Sergey Matyukevich <smatyukevich@quantenna.com>
Signed-off-by: Avinash Patil <avinashp@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
---
LICENCE.Quantenna_fmac | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
WHENCE | 9 ++++++
qtn/fmac_qsr10g.img | Bin 0 -> 9559676 bytes
3 files changed, 83 insertions(+)
create mode 100644 LICENCE.Quantenna_fmac
create mode 100644 qtn/fmac_qsr10g.img
diff --git a/LICENCE.Quantenna_fmac b/LICENCE.Quantenna_fmac
new file mode 100644
index 0000000..e6f9f72
--- /dev/null
+++ b/LICENCE.Quantenna_fmac
@@ -0,0 +1,74 @@
+Copyright (c) 2016, Quantenna, Inc.
+All rights reserved.
+
+Redistribution. Reproduction and redistribution in binary form, without
+modification, for use solely in conjunction with a Quantenna, Inc. chipset, is
+permitted provided that the following conditions are met:
+
+ - Redistributions must reproduce the above copyright notice and the
+ following disclaimer in the documentation and/or other materials provided
+ with the distribution.
+
+ - Neither the name of Quantenna, Inc. nor the names of its suppliers may be
+ used to endorse or promote products derived from this Software without
+ specific prior written permission.
+
+ - No reverse engineering, decompilation, or disassembly of this Software is
+ permitted, except and solely to the extent that such a restriction is
+ impermissible pursuant to applicable law or third party license.
+
+ - Your reproduction and distribution must comply with all applicable laws,
+ including without limitation all applicable U.S., European, and other
+ export laws.
+
+Limited Patent License. Subject to your compliance with all terms of this
+license, Quantenna, Inc. (“Licensor”) grants you (“Licensee”) a limited,
+worldwide, royalty-free, non-exclusive license under the Licensed Patents to
+make, have made, use, import, offer to sell and sell the Software solely in
+conjunction with a validly purchased Quantenna, Inc. chipset. No hardware
+per se is licensed hereunder.
+
+The term “Licensed Patents” as used in this agreement means only those patents
+or patent applications owned solely and exclusively by Licensor as of the date
+of Licensor’s submission of the Software that would necessarily be infringed by
+the operation of the Software, alone, or in combination with a supported
+version of the Linux operating system. The patent license shall not apply to
+any other combinations which include the Software. The term “Licensed Patents”
+expressly excludes any patent or patent application owned by any current or
+future affiliate of Quantenna, Inc. The term “Software” as used in this
+agreement means the unmodified firmware image submitted by Licensor, under the
+terms of this license, to
+git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git.
+
+Notwithstanding anything to the contrary herein, Licensor does not grant and
+Licensee does not receive, by virtue of this agreement or the Licensor’s
+submission of any Software, any license or other rights under any patent or
+patent application owned by any current or future affiliate of Licensor or any
+other entity (other than Licensor), whether expressly, impliedly, by virtue of
+estoppel or exhaustion, or otherwise. If Licensee has a separate agreement with
+Licensor covering use of the Software, then that separate agreement shall
+control.
+
+Open Source Software. The Software may include components that are licensed
+pursuant to open source software (“Open Source Components”). Information
+regarding the Open Source Components included with the Software is available
+upon request to oslegal@quantenna.com. To the extent such Open Source
+Components are required to be licensed to you under the terms of a separate
+license (such as an open source license) then such other terms shall apply, and
+nothing herein shall be deemed or interpreted to limit any rights you may have
+under any such applicable license.
+
+DISCLAIMER. THIS SOFTWARE (INCLUDING ANY APPLICABLE OPEN SOURCE COMPONENTS) IS
+PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFREINGEMENT ARE
+EXPRESSLY DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNERS, AUTHORS, OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE, AND REGARDLESS OF ANY FAILURE OF ESSENTIAL PURPOSE OF ANY
+LIMITED REMEDY PROVIDED HEREIN.
+
diff --git a/WHENCE b/WHENCE
index 534c2da..78f6b73 100644
--- a/WHENCE
+++ b/WHENCE
@@ -3347,3 +3347,12 @@ File: rockchip/dptx.bin
Version: 2.9
Licence: Redistributable. See LICENCE.rockchip for details.
+
+--------------------------------------------------------------------------
+
+Driver: qtnfmac - FullMAC driver for Quantenna QSR10G wireless card
+
+File: qtn/fmac_qsr10g.img
+
+Licence: Redistributable. See LICENCE.Quantenna_fmac for details.
+
diff --git a/qtn/fmac_qsr10g.img b/qtn/fmac_qsr10g.img
new file mode 100644
index 0000000..a65e6ec
Binary files /dev/null and b/qtn/fmac_qsr10g.img differ
--
2.7.4
^ permalink raw reply related [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-23 15:25 ` Kalle Valo
2016-11-23 16:45 ` igor.mitsyanko.os
@ 2016-11-23 17:09 ` IgorMitsyanko
2016-11-24 11:59 ` Kalle Valo
2016-12-23 15:12 ` igor.mitsyanko.os
2 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-23 17:09 UTC (permalink / raw)
To: Kalle Valo
Cc: Johannes Berg, linux-wireless, btherthala, hwang, smaksimenko,
dlebed, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil, Ben Hutchings, Kyle McMartin
On 11/23/2016 06:25 PM, Kalle Valo wrote:
> IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
>
>> To clarify with you and Kalle, as persons involved with
>> linux-wireless: is my understanding correct that submitting firmware
>> into linux-fimware repository is a prerequisite to accepting new
>> driver into linux-wireless?
> In my opinion the most important is that the device is usable with an
> upstream driver so that anyone can start using the driver (if they have
> the hardware).
>
>> There is an option to start Quantenna device from internal flash
>> memory, no external binary files involved. If we will introduce this
>> functionality and remove code handling external firmware for now
>> (until firmware problem resolved), would that allow driver to be
>> reviewed/accepted?
> Do all the publically available hardware contain the firmware in
> internal flash (flashed in the factory)? Or is this something which must
> be installed separately for each board's internal flash by the user?
Each board must have flash installed on it, preflashed in the factory
with uboot and firmware binary, otherwise board won't boot (won't boot
without uboot, firmware itself is not mandatory).
Booting from flash is default behavior on boards that are currently on
the market, but for developemnt purpuses it's not very convenient and
harder to upgrade.
>
> BTW, the original mail with the firmware image didn't make it to the
> list, I guess it was too big? It would be good if you could post the
> license separately so that people can see it.
>
I resent the email without binary patch to linux-wireless. Yes, it was
big, I guess next time we better use pull requests on github.
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-23 17:09 ` IgorMitsyanko
@ 2016-11-24 11:59 ` Kalle Valo
2016-11-25 10:16 ` IgorMitsyanko
0 siblings, 1 reply; 30+ messages in thread
From: Kalle Valo @ 2016-11-24 11:59 UTC (permalink / raw)
To: IgorMitsyanko
Cc: Johannes Berg, linux-wireless, btherthala, hwang, smaksimenko,
dlebed, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil, Ben Hutchings, Kyle McMartin
IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
> On 11/23/2016 06:25 PM, Kalle Valo wrote:
>> IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
>>
>>> To clarify with you and Kalle, as persons involved with
>>> linux-wireless: is my understanding correct that submitting firmware
>>> into linux-fimware repository is a prerequisite to accepting new
>>> driver into linux-wireless?
>> In my opinion the most important is that the device is usable with an
>> upstream driver so that anyone can start using the driver (if they have
>> the hardware).
>>
>>> There is an option to start Quantenna device from internal flash
>>> memory, no external binary files involved. If we will introduce this
>>> functionality and remove code handling external firmware for now
>>> (until firmware problem resolved), would that allow driver to be
>>> reviewed/accepted?
>> Do all the publically available hardware contain the firmware in
>> internal flash (flashed in the factory)? Or is this something which must
>> be installed separately for each board's internal flash by the user?
>
> Each board must have flash installed on it, preflashed in the factory
> with uboot and firmware binary, otherwise board won't boot
Will the preflashed firmware binary will have all the normal
functionality needed by this driver? I mean that you can start an AP
interface etc.
> (won't boot without uboot, firmware itself is not mandatory).
Are you expecting that there are devices on the field which have uboot
preflashed but not the firmware?
> Booting from flash is default behavior on boards that are currently on
> the market, but for developemnt purpuses it's not very convenient and
> harder to upgrade.
Sure, I understand.
>> BTW, the original mail with the firmware image didn't make it to the
>> list, I guess it was too big? It would be good if you could post the
>> license separately so that people can see it.
>>
>
> I resent the email without binary patch to linux-wireless.
Saw it now, thanks.
--
Kalle Valo
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-24 11:59 ` Kalle Valo
@ 2016-11-25 10:16 ` IgorMitsyanko
0 siblings, 0 replies; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-25 10:16 UTC (permalink / raw)
To: Kalle Valo
Cc: Johannes Berg, linux-wireless, btherthala, hwang, smaksimenko,
dlebed, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil, Ben Hutchings, Kyle McMartin
On 11/24/2016 02:59 PM, Kalle Valo wrote:
> IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
>
>> On 11/23/2016 06:25 PM, Kalle Valo wrote:
>>> IgorMitsyanko <igor.mitsyanko.os@quantenna.com> writes:
>>>
>>>> To clarify with you and Kalle, as persons involved with
>>>> linux-wireless: is my understanding correct that submitting firmware
>>>> into linux-fimware repository is a prerequisite to accepting new
>>>> driver into linux-wireless?
>>> In my opinion the most important is that the device is usable with an
>>> upstream driver so that anyone can start using the driver (if they have
>>> the hardware).
>>>
>>>> There is an option to start Quantenna device from internal flash
>>>> memory, no external binary files involved. If we will introduce this
>>>> functionality and remove code handling external firmware for now
>>>> (until firmware problem resolved), would that allow driver to be
>>>> reviewed/accepted?
>>> Do all the publically available hardware contain the firmware in
>>> internal flash (flashed in the factory)? Or is this something which must
>>> be installed separately for each board's internal flash by the user?
>> Each board must have flash installed on it, preflashed in the factory
>> with uboot and firmware binary, otherwise board won't boot
> Will the preflashed firmware binary will have all the normal
> functionality needed by this driver? I mean that you can start an AP
> interface etc.
Yes, we tried to design system in a way that the same firmware will
support working as a FullMAC device with cfg80211 framework, as well as
working in a default mode of emulating ethernet card (when all wireless
rated components are hidden inside device itself); it's just a problem
of telling device which mode it should boot to.
>> (won't boot without uboot, firmware itself is not mandatory).
> Are you expecting that there are devices on the field which have uboot
> preflashed but not the firmware?
For the new QSR10G chipset, there are no such devices right now. I think
it is possible for them to appear in the future: makes sense to have
designs with smaller flash sizes, to save a few cents on each device,
but hopefully by that time we will have firmware binary accepted in
linux-firmare.
>
>> Booting from flash is default behavior on boards that are currently on
>> the market, but for developemnt purpuses it's not very convenient and
>> harder to upgrade.
> Sure, I understand.
>
>>> BTW, the original mail with the firmware image didn't make it to the
>>> list, I guess it was too big? It would be good if you could post the
>>> license separately so that people can see it.
>>>
>> I resent the email without binary patch to linux-wireless.
> Saw it now, thanks.
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-22 14:44 ` IgorMitsyanko
@ 2016-11-28 16:34 ` Kyle McMartin
2016-11-28 17:10 ` Oleksij Rempel
2016-11-28 22:07 ` IgorMitsyanko
0 siblings, 2 replies; 30+ messages in thread
From: Kyle McMartin @ 2016-11-28 16:34 UTC (permalink / raw)
To: IgorMitsyanko
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
<igor.mitsyanko.os@quantenna.com> wrote:
> Hi Ben, Kyle,
> could you please share what is the position of linux-firmware regarding
> firmware binaries that include GPL components? Does it require entire GPL
> components codebase be present in linux-firmware tree, or maybe having th=
is
> clause in license file is enough:
> +Open Source Software. The Software may include components that are licen=
sed
> +pursuant to open source software (=E2=80=9COpen Source Components=E2=80=
=9D). Information
> +regarding the Open Source Components included with the Software is
> available
> +upon request to oslegal@quantenna.com. To the extent such Open Source
> +Components are required to be licensed to you under the terms of a separ=
ate
> +license (such as an open source license) then such other terms shall app=
ly,
> and
> +nothing herein shall be deemed or interpreted to limit any rights you ma=
y
> have
> +under any such applicable license.
>
> From technical perspective, size of the codebase used to build Quantenna
> firmware is a few hundred MBs, it seems too much to include into
> linux-firmware tree.
>
I don't have strong feelings one way or another. I'd prefer not having
several hundred
MB of source that's unlikely to change included in the linux-firmware
git tree. I'm also not
a lawyer, so I can't help you decide what would satisfy the
distribution clause of the GPLv2.
We already have one GPL firmware (carl9170fw) which includes the
source, but just references
a seperate toolchain for downloading, so it's only approximately 1MB
in size in the tree.
Is your firmware source really that large, or is it just including the
entire build toolchain with it?
regards,
--Kyle
> On 11/11/2016 02:35 PM, Johannes Berg wrote:
>>
>> Adding linux-firmware people to Cc, since presumably they don't
>> necessarily read linux-wireless...
>>
>>> Johannes, from that perspective, who are the "redistributors"?
>>> Specifically, is linux-firmware git repository considered a
>>> redistributor or its just hosting files? I mean, at what moment
>>> someone else other then Quantenna will start to be legally obliged to
>>> make GPL code used in firmware available for others?
>>
>> Look, I don't know. I'd assume people who ship it, like any regular
>> distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
>> images come with a redistribution license, but that obviously can't
>> work here.
>>
>> There's some info from Ben here regarding the carl9170 case:
>> http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
>>
>>> Personally I still hope that linux-firmware itself is not legally
>>> concerned with what is the content of firmware its hosting, but looks
>>> like there already was a precedent case with carl9170 driver and
>>> we have to somehow deal with it.
>>
>> That's really all I wanted to bring up. I'm not involved with the
>> linux-firmware git tree.
>>
>>> There still may be a difference though: Quantenna is semiconductor
>>> company only, software
>>> used on actual products based on Quantenna chipsets is released by
>>> other
>>> companies.
>>> I just want to present our legal team with a clear case (and position
>>> of
>>> Linux maintainers) so that they can
>>> work with it and make decision on how to proceed.
>>>
>>> From technical perspective, as I mentioned, SDK is quite huge and
>>> include a lot of opensource
>>> components including full Linux, I don't think its reasonable to have
>>> it
>>> inside linux-firmware tree.
>>> What are the options to share it other then providing it on request
>>> basis:
>>> - git repository
>>> - store tarball somewhere on official website
>>
>> Clearly that wasn't deemed appropriate for carl9170, so I don't see why
>> it'd be different here.
>>
>> johannes
>
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-28 16:34 ` Kyle McMartin
@ 2016-11-28 17:10 ` Oleksij Rempel
2016-11-28 17:33 ` Oleksij Rempel
2016-11-28 22:07 ` IgorMitsyanko
1 sibling, 1 reply; 30+ messages in thread
From: Oleksij Rempel @ 2016-11-28 17:10 UTC (permalink / raw)
To: Kyle McMartin, IgorMitsyanko
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
[-- Attachment #1.1: Type: text/plain, Size: 2289 bytes --]
Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
> <igor.mitsyanko.os@quantenna.com> wrote:
>> Hi Ben, Kyle,
>> could you please share what is the position of linux-firmware regarding
>> firmware binaries that include GPL components? Does it require entire GPL
>> components codebase be present in linux-firmware tree, or maybe having this
>> clause in license file is enough:
>> +Open Source Software. The Software may include components that are licensed
>> +pursuant to open source software (“Open Source Components”). Information
>> +regarding the Open Source Components included with the Software is
>> available
>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>> +Components are required to be licensed to you under the terms of a separate
>> +license (such as an open source license) then such other terms shall apply,
>> and
>> +nothing herein shall be deemed or interpreted to limit any rights you may
>> have
>> +under any such applicable license.
>>
>> From technical perspective, size of the codebase used to build Quantenna
>> firmware is a few hundred MBs, it seems too much to include into
>> linux-firmware tree.
>>
>
> I don't have strong feelings one way or another. I'd prefer not having
> several hundred
> MB of source that's unlikely to change included in the linux-firmware
> git tree. I'm also not
> a lawyer, so I can't help you decide what would satisfy the
> distribution clause of the GPLv2.
> We already have one GPL firmware (carl9170fw) which includes the
> source, but just references
> a seperate toolchain for downloading, so it's only approximately 1MB
> in size in the tree.
>
> Is your firmware source really that large, or is it just including the
> entire build toolchain with it?
>
> regards,
> --Kyle
We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
out of source too.
https://github.com/qca/open-ath9k-htc-firmware
and here is location of carl firmware:
https://github.com/chunkeey/carl9170fw
So, what is actual problem with Quantenna QSR10G FW?
I would be really interesting to take a look on it. Is it somewhere
available? Are there some devices to get hand on?
--
Regards,
Oleksij
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^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-28 17:10 ` Oleksij Rempel
@ 2016-11-28 17:33 ` Oleksij Rempel
2016-11-28 19:01 ` IgorMitsyanko
0 siblings, 1 reply; 30+ messages in thread
From: Oleksij Rempel @ 2016-11-28 17:33 UTC (permalink / raw)
To: Kyle McMartin, IgorMitsyanko
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
[-- Attachment #1.1: Type: text/plain, Size: 2511 bytes --]
Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>> <igor.mitsyanko.os@quantenna.com> wrote:
>>> Hi Ben, Kyle,
>>> could you please share what is the position of linux-firmware regarding
>>> firmware binaries that include GPL components? Does it require entire GPL
>>> components codebase be present in linux-firmware tree, or maybe having this
>>> clause in license file is enough:
>>> +Open Source Software. The Software may include components that are licensed
>>> +pursuant to open source software (“Open Source Components”). Information
>>> +regarding the Open Source Components included with the Software is
>>> available
>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>> +Components are required to be licensed to you under the terms of a separate
>>> +license (such as an open source license) then such other terms shall apply,
>>> and
>>> +nothing herein shall be deemed or interpreted to limit any rights you may
>>> have
>>> +under any such applicable license.
>>>
>>> From technical perspective, size of the codebase used to build Quantenna
>>> firmware is a few hundred MBs, it seems too much to include into
>>> linux-firmware tree.
>>>
>>
>> I don't have strong feelings one way or another. I'd prefer not having
>> several hundred
>> MB of source that's unlikely to change included in the linux-firmware
>> git tree. I'm also not
>> a lawyer, so I can't help you decide what would satisfy the
>> distribution clause of the GPLv2.
>> We already have one GPL firmware (carl9170fw) which includes the
>> source, but just references
>> a seperate toolchain for downloading, so it's only approximately 1MB
>> in size in the tree.
>>
>> Is your firmware source really that large, or is it just including the
>> entire build toolchain with it?
>>
>> regards,
>> --Kyle
>
> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
> out of source too.
> https://github.com/qca/open-ath9k-htc-firmware
> and here is location of carl firmware:
> https://github.com/chunkeey/carl9170fw
>
> So, what is actual problem with Quantenna QSR10G FW?
> I would be really interesting to take a look on it. Is it somewhere
> available? Are there some devices to get hand on?
After seeing specs of this device i have strong feeling that "some open
source part" is actual linux kernel.
--
Regards,
Oleksij
[-- Attachment #2: OpenPGP digital signature --]
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^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-28 17:33 ` Oleksij Rempel
@ 2016-11-28 19:01 ` IgorMitsyanko
2016-11-29 3:49 ` Oleksij Rempel
0 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-28 19:01 UTC (permalink / raw)
To: Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
>> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>>> <igor.mitsyanko.os@quantenna.com> wrote:
>>>> Hi Ben, Kyle,
>>>> could you please share what is the position of linux-firmware regarding
>>>> firmware binaries that include GPL components? Does it require entire GPL
>>>> components codebase be present in linux-firmware tree, or maybe having this
>>>> clause in license file is enough:
>>>> +Open Source Software. The Software may include components that are licensed
>>>> +pursuant to open source software (“Open Source Components”). Information
>>>> +regarding the Open Source Components included with the Software is
>>>> available
>>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>>> +Components are required to be licensed to you under the terms of a separate
>>>> +license (such as an open source license) then such other terms shall apply,
>>>> and
>>>> +nothing herein shall be deemed or interpreted to limit any rights you may
>>>> have
>>>> +under any such applicable license.
>>>>
>>>> From technical perspective, size of the codebase used to build Quantenna
>>>> firmware is a few hundred MBs, it seems too much to include into
>>>> linux-firmware tree.
>>>>
>>> I don't have strong feelings one way or another. I'd prefer not having
>>> several hundred
>>> MB of source that's unlikely to change included in the linux-firmware
>>> git tree. I'm also not
>>> a lawyer, so I can't help you decide what would satisfy the
>>> distribution clause of the GPLv2.
>>> We already have one GPL firmware (carl9170fw) which includes the
>>> source, but just references
>>> a seperate toolchain for downloading, so it's only approximately 1MB
>>> in size in the tree.
>>>
>>> Is your firmware source really that large, or is it just including the
>>> entire build toolchain with it?
>>>
>>> regards,
>>> --Kyle
>> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
>> out of source too.
>> https://github.com/qca/open-ath9k-htc-firmware
>> and here is location of carl firmware:
>> https://github.com/chunkeey/carl9170fw
>>
>> So, what is actual problem with Quantenna QSR10G FW?
>> I would be really interesting to take a look on it. Is it somewhere
>> available? Are there some devices to get hand on?
> After seeing specs of this device i have strong feeling that "some open
> source part" is actual linux kernel.
>
>
Oleksij, yes, that's correct, it includes entire Linux environment; the
reasoning is that it allows to hide all WiFi-related logic inside device
itself, and emulate simple Ethernet device for external system
(therefore, freeing external system resources).
This approach was working really well for us until recently, but now
that company is expanding, we want to have more flexible and standardize
interface available for external system to manage wireless connection,
and FullMAC driver seems to be the best solution here.
For the availability of FW sources, QSR10G-based products are still
under development at this moment (not in the market yet), but many
products based on previous generation chipset QSR1000 are available. For
example, Asus has a retail design with QSR1000 chipset, and has all GPL
sourcecode available on their website (including what Quantenna has
provided):
http://www.asus.com/Networking/RTAC87U/HelpDesk_Download/
Quantenna provided code is in, for example, "GPL of ASUS RT-AC87U for
firmware 3.0.0.4.378.7410" archive.
It's basically the same as used for QSR10G.
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-28 16:34 ` Kyle McMartin
2016-11-28 17:10 ` Oleksij Rempel
@ 2016-11-28 22:07 ` IgorMitsyanko
1 sibling, 0 replies; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-28 22:07 UTC (permalink / raw)
To: Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 11/28/2016 07:34 PM, Kyle McMartin wrote:
> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
> <igor.mitsyanko.os@quantenna.com> wrote:
>> Hi Ben, Kyle,
>> could you please share what is the position of linux-firmware regarding
>> firmware binaries that include GPL components? Does it require entire GPL
>> components codebase be present in linux-firmware tree, or maybe having this
>> clause in license file is enough:
>> +Open Source Software. The Software may include components that are licensed
>> +pursuant to open source software (“Open Source Components”). Information
>> +regarding the Open Source Components included with the Software is
>> available
>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>> +Components are required to be licensed to you under the terms of a separate
>> +license (such as an open source license) then such other terms shall apply,
>> and
>> +nothing herein shall be deemed or interpreted to limit any rights you may
>> have
>> +under any such applicable license.
>>
>> From technical perspective, size of the codebase used to build Quantenna
>> firmware is a few hundred MBs, it seems too much to include into
>> linux-firmware tree.
>>
> I don't have strong feelings one way or another. I'd prefer not having
> several hundred
> MB of source that's unlikely to change included in the linux-firmware
> git tree. I'm also not
> a lawyer, so I can't help you decide what would satisfy the
> distribution clause of the GPLv2.
> We already have one GPL firmware (carl9170fw) which includes the
> source, but just references
> a seperate toolchain for downloading, so it's only approximately 1MB
> in size in the tree.
>
> Is your firmware source really that large, or is it just including the
> entire build toolchain with it?
It does include Linux environment with userspace tools, toolchain and
some other components that are not actually needed, you're right.
Maybe its possible to skip providing entire build environment, but
simply provide GPL code and patches to 3-d party opensource components?
Just state which version the patch is based on: for example, patch to
apply on top of Linux 3.14 sources, but no sources themselves. In this
case, it won't be possible to build firmware manually, but GPL code
modifications will be available.
>
> regards,
> --Kyle
>
>> On 11/11/2016 02:35 PM, Johannes Berg wrote:
>>> Adding linux-firmware people to Cc, since presumably they don't
>>> necessarily read linux-wireless...
>>>
>>>> Johannes, from that perspective, who are the "redistributors"?
>>>> Specifically, is linux-firmware git repository considered a
>>>> redistributor or its just hosting files? I mean, at what moment
>>>> someone else other then Quantenna will start to be legally obliged to
>>>> make GPL code used in firmware available for others?
>>> Look, I don't know. I'd assume people who ship it, like any regular
>>> distro, would be (re)distributors thereof. "Normal" (non-GPL) firmware
>>> images come with a redistribution license, but that obviously can't
>>> work here.
>>>
>>> There's some info from Ben here regarding the carl9170 case:
>>> http://lkml.iu.edu/hypermail/linux/kernel/1605.3/01176.html
>>>
>>>> Personally I still hope that linux-firmware itself is not legally
>>>> concerned with what is the content of firmware its hosting, but looks
>>>> like there already was a precedent case with carl9170 driver and
>>>> we have to somehow deal with it.
>>> That's really all I wanted to bring up. I'm not involved with the
>>> linux-firmware git tree.
>>>
>>>> There still may be a difference though: Quantenna is semiconductor
>>>> company only, software
>>>> used on actual products based on Quantenna chipsets is released by
>>>> other
>>>> companies.
>>>> I just want to present our legal team with a clear case (and position
>>>> of
>>>> Linux maintainers) so that they can
>>>> work with it and make decision on how to proceed.
>>>>
>>>> From technical perspective, as I mentioned, SDK is quite huge and
>>>> include a lot of opensource
>>>> components including full Linux, I don't think its reasonable to have
>>>> it
>>>> inside linux-firmware tree.
>>>> What are the options to share it other then providing it on request
>>>> basis:
>>>> - git repository
>>>> - store tarball somewhere on official website
>>> Clearly that wasn't deemed appropriate for carl9170, so I don't see why
>>> it'd be different here.
>>>
>>> johannes
>>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-28 19:01 ` IgorMitsyanko
@ 2016-11-29 3:49 ` Oleksij Rempel
2016-11-29 9:10 ` IgorMitsyanko
0 siblings, 1 reply; 30+ messages in thread
From: Oleksij Rempel @ 2016-11-29 3:49 UTC (permalink / raw)
To: IgorMitsyanko, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
[-- Attachment #1.1: Type: text/plain, Size: 4140 bytes --]
Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
>>> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>>>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>>>> <igor.mitsyanko.os@quantenna.com> wrote:
>>>>> Hi Ben, Kyle,
>>>>> could you please share what is the position of linux-firmware
>>>>> regarding
>>>>> firmware binaries that include GPL components? Does it require
>>>>> entire GPL
>>>>> components codebase be present in linux-firmware tree, or maybe
>>>>> having this
>>>>> clause in license file is enough:
>>>>> +Open Source Software. The Software may include components that are
>>>>> licensed
>>>>> +pursuant to open source software (“Open Source Components”).
>>>>> Information
>>>>> +regarding the Open Source Components included with the Software is
>>>>> available
>>>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>>>> +Components are required to be licensed to you under the terms of a
>>>>> separate
>>>>> +license (such as an open source license) then such other terms
>>>>> shall apply,
>>>>> and
>>>>> +nothing herein shall be deemed or interpreted to limit any rights
>>>>> you may
>>>>> have
>>>>> +under any such applicable license.
>>>>>
>>>>> From technical perspective, size of the codebase used to build
>>>>> Quantenna
>>>>> firmware is a few hundred MBs, it seems too much to include into
>>>>> linux-firmware tree.
>>>>>
>>>> I don't have strong feelings one way or another. I'd prefer not having
>>>> several hundred
>>>> MB of source that's unlikely to change included in the linux-firmware
>>>> git tree. I'm also not
>>>> a lawyer, so I can't help you decide what would satisfy the
>>>> distribution clause of the GPLv2.
>>>> We already have one GPL firmware (carl9170fw) which includes the
>>>> source, but just references
>>>> a seperate toolchain for downloading, so it's only approximately 1MB
>>>> in size in the tree.
>>>>
>>>> Is your firmware source really that large, or is it just including the
>>>> entire build toolchain with it?
>>>>
>>>> regards,
>>>> --Kyle
>>> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
>>> out of source too.
>>> https://github.com/qca/open-ath9k-htc-firmware
>>> and here is location of carl firmware:
>>> https://github.com/chunkeey/carl9170fw
>>>
>>> So, what is actual problem with Quantenna QSR10G FW?
>>> I would be really interesting to take a look on it. Is it somewhere
>>> available? Are there some devices to get hand on?
>> After seeing specs of this device i have strong feeling that "some open
>> source part" is actual linux kernel.
>>
>>
> Oleksij, yes, that's correct, it includes entire Linux environment; the
> reasoning is that it allows to hide all WiFi-related logic inside device
> itself, and emulate simple Ethernet device for external system
> (therefore, freeing external system resources).
>
> This approach was working really well for us until recently, but now
> that company is expanding, we want to have more flexible and standardize
> interface available for external system to manage wireless connection,
> and FullMAC driver seems to be the best solution here.
you mean, this driver will not use mac80211 framework provided by kernel?
> For the availability of FW sources, QSR10G-based products are still
> under development at this moment (not in the market yet), but many
> products based on previous generation chipset QSR1000 are available. For
> example, Asus has a retail design with QSR1000 chipset, and has all GPL
> sourcecode available on their website (including what Quantenna has
> provided):
>
> http://www.asus.com/Networking/RTAC87U/HelpDesk_Download/
> Quantenna provided code is in, for example, "GPL of ASUS RT-AC87U for
> firmware 3.0.0.4.378.7410" archive.
> It's basically the same as used for QSR10G.
Will Quantenna provide documentation for at least old chipsats? Playing
fair with OSS developer community has some advantages :)
--
Regards,
Oleksij
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 213 bytes --]
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-29 3:49 ` Oleksij Rempel
@ 2016-11-29 9:10 ` IgorMitsyanko
2016-11-29 9:34 ` Arend Van Spriel
0 siblings, 1 reply; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-29 9:10 UTC (permalink / raw)
To: Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
>>>> Am 28.11.2016 um 17:34 schrieb Kyle McMartin:
>>>>> On Tue, Nov 22, 2016 at 9:44 AM, IgorMitsyanko
>>>>> <igor.mitsyanko.os@quantenna.com> wrote:
>>>>>> Hi Ben, Kyle,
>>>>>> could you please share what is the position of linux-firmware
>>>>>> regarding
>>>>>> firmware binaries that include GPL components? Does it require
>>>>>> entire GPL
>>>>>> components codebase be present in linux-firmware tree, or maybe
>>>>>> having this
>>>>>> clause in license file is enough:
>>>>>> +Open Source Software. The Software may include components that are
>>>>>> licensed
>>>>>> +pursuant to open source software (“Open Source Components”).
>>>>>> Information
>>>>>> +regarding the Open Source Components included with the Software is
>>>>>> available
>>>>>> +upon request to oslegal@quantenna.com. To the extent such Open Source
>>>>>> +Components are required to be licensed to you under the terms of a
>>>>>> separate
>>>>>> +license (such as an open source license) then such other terms
>>>>>> shall apply,
>>>>>> and
>>>>>> +nothing herein shall be deemed or interpreted to limit any rights
>>>>>> you may
>>>>>> have
>>>>>> +under any such applicable license.
>>>>>>
>>>>>> From technical perspective, size of the codebase used to build
>>>>>> Quantenna
>>>>>> firmware is a few hundred MBs, it seems too much to include into
>>>>>> linux-firmware tree.
>>>>>>
>>>>> I don't have strong feelings one way or another. I'd prefer not having
>>>>> several hundred
>>>>> MB of source that's unlikely to change included in the linux-firmware
>>>>> git tree. I'm also not
>>>>> a lawyer, so I can't help you decide what would satisfy the
>>>>> distribution clause of the GPLv2.
>>>>> We already have one GPL firmware (carl9170fw) which includes the
>>>>> source, but just references
>>>>> a seperate toolchain for downloading, so it's only approximately 1MB
>>>>> in size in the tree.
>>>>>
>>>>> Is your firmware source really that large, or is it just including the
>>>>> entire build toolchain with it?
>>>>>
>>>>> regards,
>>>>> --Kyle
>>>> We also have open BSD licensed open-ath9k-htc-firmware. Which is locate
>>>> out of source too.
>>>> https://github.com/qca/open-ath9k-htc-firmware
>>>> and here is location of carl firmware:
>>>> https://github.com/chunkeey/carl9170fw
>>>>
>>>> So, what is actual problem with Quantenna QSR10G FW?
>>>> I would be really interesting to take a look on it. Is it somewhere
>>>> available? Are there some devices to get hand on?
>>> After seeing specs of this device i have strong feeling that "some open
>>> source part" is actual linux kernel.
>>>
>>>
>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>> reasoning is that it allows to hide all WiFi-related logic inside device
>> itself, and emulate simple Ethernet device for external system
>> (therefore, freeing external system resources).
>>
>> This approach was working really well for us until recently, but now
>> that company is expanding, we want to have more flexible and standardize
>> interface available for external system to manage wireless connection,
>> and FullMAC driver seems to be the best solution here.
> you mean, this driver will not use mac80211 framework provided by kernel?
Yes, this driver is FullMAC - converting Quantenna drivers codebase to
mac80211 framework will require significant effort from developers and
QA, but I think in the future it will have to be done anyway.
>
>> For the availability of FW sources, QSR10G-based products are still
>> under development at this moment (not in the market yet), but many
>> products based on previous generation chipset QSR1000 are available. For
>> example, Asus has a retail design with QSR1000 chipset, and has all GPL
>> sourcecode available on their website (including what Quantenna has
>> provided):
>>
>> http://www.asus.com/Networking/RTAC87U/HelpDesk_Download/
>> Quantenna provided code is in, for example, "GPL of ASUS RT-AC87U for
>> firmware 3.0.0.4.378.7410" archive.
>> It's basically the same as used for QSR10G.
> Will Quantenna provide documentation for at least old chipsats? Playing
> fair with OSS developer community has some advantages :)
Will forward the request.
I agree with this, though this is more about protecting from other wifi
vendors on a highly competitive market rather than hiding something from
community) QSR1000 chipset that I mentioned is actually "current"
chipset while QSR10G can be considered future chipset.
>
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-29 9:10 ` IgorMitsyanko
@ 2016-11-29 9:34 ` Arend Van Spriel
2016-11-29 10:22 ` IgorMitsyanko
0 siblings, 1 reply; 30+ messages in thread
From: Arend Van Spriel @ 2016-11-29 9:34 UTC (permalink / raw)
To: IgorMitsyanko, Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 29-11-2016 10:10, IgorMitsyanko wrote:
> On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
>> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
[...]
>>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>>> reasoning is that it allows to hide all WiFi-related logic inside device
>>> itself, and emulate simple Ethernet device for external system
>>> (therefore, freeing external system resources).
>>>
>>> This approach was working really well for us until recently, but now
>>> that company is expanding, we want to have more flexible and standardize
>>> interface available for external system to manage wireless connection,
>>> and FullMAC driver seems to be the best solution here.
>> you mean, this driver will not use mac80211 framework provided by kernel?
>
> Yes, this driver is FullMAC - converting Quantenna drivers codebase to
> mac80211 framework will require significant effort from developers and
> QA, but I think in the future it will have to be done anyway.
Why? The linux wireless subsystem supports both models, ie.
cfg80211-based drivers and mac80211-based drivers, so there is no
technical reason for making the effort. There are clearly benefits in
using a generic and freely available 802.11 stack like mac80211.
Regards,
Arend
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-29 9:34 ` Arend Van Spriel
@ 2016-11-29 10:22 ` IgorMitsyanko
0 siblings, 0 replies; 30+ messages in thread
From: IgorMitsyanko @ 2016-11-29 10:22 UTC (permalink / raw)
To: Arend Van Spriel, Oleksij Rempel, Kyle McMartin
Cc: Ben Hutchings, Kyle McMartin, Johannes Berg, linux-wireless,
btherthala, hwang, smaksimenko, dlebed, Igor Mitsyanko,
Kamlesh Rath, Sergey Matyukevich, Avinash Patil
On 11/29/2016 12:34 PM, Arend Van Spriel wrote:
>
> On 29-11-2016 10:10, IgorMitsyanko wrote:
>> On 11/29/2016 06:49 AM, Oleksij Rempel wrote:
>>> Am 28.11.2016 um 20:01 schrieb IgorMitsyanko:
>>>> On 11/28/2016 08:33 PM, Oleksij Rempel wrote:
>>>>> Am 28.11.2016 um 18:10 schrieb Oleksij Rempel:
> [...]
>
>>>> Oleksij, yes, that's correct, it includes entire Linux environment; the
>>>> reasoning is that it allows to hide all WiFi-related logic inside device
>>>> itself, and emulate simple Ethernet device for external system
>>>> (therefore, freeing external system resources).
>>>>
>>>> This approach was working really well for us until recently, but now
>>>> that company is expanding, we want to have more flexible and standardize
>>>> interface available for external system to manage wireless connection,
>>>> and FullMAC driver seems to be the best solution here.
>>> you mean, this driver will not use mac80211 framework provided by kernel?
>> Yes, this driver is FullMAC - converting Quantenna drivers codebase to
>> mac80211 framework will require significant effort from developers and
>> QA, but I think in the future it will have to be done anyway.
> Why? The linux wireless subsystem supports both models, ie.
> cfg80211-based drivers and mac80211-based drivers, so there is no
> technical reason for making the effort. There are clearly benefits in
> using a generic and freely available 802.11 stack like mac80211.
There is definitely a benefit if starting a new product development,
however with existing products its not that simple due to highly
conservative approach:
- for many years development was based on old MadWiFi driver and older
kernel. Over time it was modified and rewritten to fit internal needs,
and integrating it into mac80211 (to preserve the same behavior) would
require significant effort.
- it takes a lot of resources to validate that system works as expected.
Quantenna itself is doing QA testing and certification + engineering has
to be sure there is no performance/feature regression + end product
manufacturers has to do their own QA. Each change means a lot of time
and money spend on validation, new potential bugs to fix etc
With FullMAC driver on the other hand, device firmware is a "black box"
for external system and firmware changes can be kept to a minimum.
I'd like to clarify that I think that moving to mac80211 is inevitable
in any case and will happen in the future.
>
> Regards,
> Arend
^ permalink raw reply [flat|nested] 30+ messages in thread
* [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-11-23 15:25 ` Kalle Valo
2016-11-23 16:45 ` igor.mitsyanko.os
2016-11-23 17:09 ` IgorMitsyanko
@ 2016-12-23 15:12 ` igor.mitsyanko.os
2016-12-23 17:47 ` Christian Lamparter
2 siblings, 1 reply; 30+ messages in thread
From: igor.mitsyanko.os @ 2016-12-23 15:12 UTC (permalink / raw)
To: linux-firmware
Cc: linux-wireless, Igor Mitsyanko, Kamlesh Rath, Sergey Matyukevich,
Avinash Patil, Igor Mitsyanko
From: Igor Mitsyanko <imitsyanko@quantenna.com>
QSR10G is Quantenna's 8x8, 160M, 11ac WiFi card.
Signed-off-by: Kamlesh Rath <krath@quantenna.com>
Signed-off-by: Sergey Matyukevich <smatyukevich@quantenna.com>
Signed-off-by: Avinash Patil <avinashp@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
---
This is an RFC patch that we sent to linux-wireless mailing list a while ago,
and it spawned a discussion regarding whether GPL sources has to be submitted
together with this firmware. We would like to clarify with linux-firmware maintainers
to understnad what should be our actions to allow this to be accepted.
- firmware contains GPL components;
- LICENCE file states that sources for GPL components will be provided on request
to oslegal@quantenna.com
There was an opinion that it is not enough: precedent case like this with carl9170
firmware was resolved by submitting GPL sources into linux-firmware repository
itself.
Does the same applies to qsr10g firmware?
The SDK that we use to build it is quite heavy (> 100MB, but with toolchain).
Maybe we can take another approach to place SDK separately on Quantenna website
(as a compressed archive), and add a link in linux-firmware?
LICENCE.Quantenna_fmac | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
WHENCE | 9 ++++++
qtn/fmac_qsr10g.img | Bin 0 -> 9559676 bytes
3 files changed, 83 insertions(+)
create mode 100644 LICENCE.Quantenna_fmac
create mode 100644 qtn/fmac_qsr10g.img
diff --git a/LICENCE.Quantenna_fmac b/LICENCE.Quantenna_fmac
new file mode 100644
index 0000000..e6f9f72
--- /dev/null
+++ b/LICENCE.Quantenna_fmac
@@ -0,0 +1,74 @@
+Copyright (c) 2016, Quantenna, Inc.
+All rights reserved.
+
+Redistribution. Reproduction and redistribution in binary form, without
+modification, for use solely in conjunction with a Quantenna, Inc. chipset, is
+permitted provided that the following conditions are met:
+
+ - Redistributions must reproduce the above copyright notice and the
+ following disclaimer in the documentation and/or other materials provided
+ with the distribution.
+
+ - Neither the name of Quantenna, Inc. nor the names of its suppliers may be
+ used to endorse or promote products derived from this Software without
+ specific prior written permission.
+
+ - No reverse engineering, decompilation, or disassembly of this Software is
+ permitted, except and solely to the extent that such a restriction is
+ impermissible pursuant to applicable law or third party license.
+
+ - Your reproduction and distribution must comply with all applicable laws,
+ including without limitation all applicable U.S., European, and other
+ export laws.
+
+Limited Patent License. Subject to your compliance with all terms of this
+license, Quantenna, Inc. (“Licensor”) grants you (“Licensee”) a limited,
+worldwide, royalty-free, non-exclusive license under the Licensed Patents to
+make, have made, use, import, offer to sell and sell the Software solely in
+conjunction with a validly purchased Quantenna, Inc. chipset. No hardware
+per se is licensed hereunder.
+
+The term “Licensed Patents” as used in this agreement means only those patents
+or patent applications owned solely and exclusively by Licensor as of the date
+of Licensor’s submission of the Software that would necessarily be infringed by
+the operation of the Software, alone, or in combination with a supported
+version of the Linux operating system. The patent license shall not apply to
+any other combinations which include the Software. The term “Licensed Patents”
+expressly excludes any patent or patent application owned by any current or
+future affiliate of Quantenna, Inc. The term “Software” as used in this
+agreement means the unmodified firmware image submitted by Licensor, under the
+terms of this license, to
+git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git.
+
+Notwithstanding anything to the contrary herein, Licensor does not grant and
+Licensee does not receive, by virtue of this agreement or the Licensor’s
+submission of any Software, any license or other rights under any patent or
+patent application owned by any current or future affiliate of Licensor or any
+other entity (other than Licensor), whether expressly, impliedly, by virtue of
+estoppel or exhaustion, or otherwise. If Licensee has a separate agreement with
+Licensor covering use of the Software, then that separate agreement shall
+control.
+
+Open Source Software. The Software may include components that are licensed
+pursuant to open source software (“Open Source Components”). Information
+regarding the Open Source Components included with the Software is available
+upon request to oslegal@quantenna.com. To the extent such Open Source
+Components are required to be licensed to you under the terms of a separate
+license (such as an open source license) then such other terms shall apply, and
+nothing herein shall be deemed or interpreted to limit any rights you may have
+under any such applicable license.
+
+DISCLAIMER. THIS SOFTWARE (INCLUDING ANY APPLICABLE OPEN SOURCE COMPONENTS) IS
+PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFREINGEMENT ARE
+EXPRESSLY DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNERS, AUTHORS, OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE, AND REGARDLESS OF ANY FAILURE OF ESSENTIAL PURPOSE OF ANY
+LIMITED REMEDY PROVIDED HEREIN.
+
diff --git a/WHENCE b/WHENCE
index 534c2da..78f6b73 100644
--- a/WHENCE
+++ b/WHENCE
@@ -3347,3 +3347,12 @@ File: rockchip/dptx.bin
Version: 2.9
Licence: Redistributable. See LICENCE.rockchip for details.
+
+--------------------------------------------------------------------------
+
+Driver: qtnfmac - FullMAC driver for Quantenna QSR10G wireless card
+
+File: qtn/fmac_qsr10g.img
+
+Licence: Redistributable. See LICENCE.Quantenna_fmac for details.
+
diff --git a/qtn/fmac_qsr10g.img b/qtn/fmac_qsr10g.img
new file mode 100644
index 0000000..a65e6ec
Binary files /dev/null and b/qtn/fmac_qsr10g.img differ
--
2.7.4
^ permalink raw reply related [flat|nested] 30+ messages in thread
* Re: [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device
2016-12-23 15:12 ` igor.mitsyanko.os
@ 2016-12-23 17:47 ` Christian Lamparter
0 siblings, 0 replies; 30+ messages in thread
From: Christian Lamparter @ 2016-12-23 17:47 UTC (permalink / raw)
To: igor.mitsyanko.os
Cc: linux-firmware, linux-wireless, Igor Mitsyanko, Kamlesh Rath,
Sergey Matyukevich, Avinash Patil
On Friday, December 23, 2016 6:12:35 PM CET igor.mitsyanko.os@quantenna.com wrote:
> From: Igor Mitsyanko <imitsyanko@quantenna.com>
>
> QSR10G is Quantenna's 8x8, 160M, 11ac WiFi card.
>
> Signed-off-by: Kamlesh Rath <krath@quantenna.com>
> Signed-off-by: Sergey Matyukevich <smatyukevich@quantenna.com>
> Signed-off-by: Avinash Patil <avinashp@quantenna.com>
> Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
> ---
> This is an RFC patch that we sent to linux-wireless mailing list a while ago,
> and it spawned a discussion regarding whether GPL sources has to be submitted
> together with this firmware. We would like to clarify with linux-firmware maintainers
> to understnad what should be our actions to allow this to be accepted.
> - firmware contains GPL components;
> - LICENCE file states that sources for GPL components will be provided on request
> to oslegal@quantenna.com
>
> There was an opinion that it is not enough: precedent case like this with carl9170
> firmware was resolved by submitting GPL sources into linux-firmware repository
> itself.
The ar9170-usb firmware was released as GPL v2.0 from the get-go.
<http://git.sipsolutions.net/ar9170-fw.git/commit/GPL?id=2e3574ce10c74a82047a06b046855de14d969948>
And this was never a problem. What is THE PROBLEM though:
"if all the patches from ar9170fw to carl9170fw and beyond (i.e new versions)
have to be added to linux-firmware.git." Or not.
That's why there was never a update to the carl9170fw.
So be prepared for this scenario too.
> Does the same applies to qsr10g firmware?
>
> The SDK that we use to build it is quite heavy (> 100MB, but with toolchain).
> Maybe we can take another approach to place SDK separately on Quantenna website
> (as a compressed archive), and add a link in linux-firmware?
Yes, I would like to know this as well.
Regards,
Christian
^ permalink raw reply [flat|nested] 30+ messages in thread
end of thread, other threads:[~2016-12-23 17:47 UTC | newest]
Thread overview: 30+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <1478700000-11624-1-git-send-email-igor.mitsyanko.os@quantenna.com>
2016-11-09 14:00 ` [PATCH V3] qtnfmac: announcement of new FullMAC driver for Quantenna chipsets igor.mitsyanko.os
2016-11-14 9:52 ` Johannes Berg
[not found] ` <62102ba6-cae0-f00d-f989-3f2e9ea43d9b@quantenna.com>
2016-11-16 16:50 ` IgorMitsyanko
2016-11-17 8:51 ` Johannes Berg
2016-11-15 9:06 ` Johannes Berg
2016-11-16 16:47 ` IgorMitsyanko
2016-11-17 7:54 ` Johannes Berg
2016-11-09 15:56 ` [RFC] qtn: add FullMAC firmware for Quantenna QSR10G wifi device Johannes Berg
[not found] ` <2fcb5f28-808e-f296-7e91-e5185e7577c9@quantenna.com>
2016-11-09 21:05 ` Johannes Berg
2016-11-10 14:02 ` IgorMitsyanko
2016-11-11 11:35 ` Johannes Berg
2016-11-14 8:26 ` IgorMitsyanko
2016-11-14 9:40 ` Johannes Berg
2016-11-23 15:25 ` Kalle Valo
2016-11-23 16:45 ` igor.mitsyanko.os
2016-11-23 17:09 ` IgorMitsyanko
2016-11-24 11:59 ` Kalle Valo
2016-11-25 10:16 ` IgorMitsyanko
2016-12-23 15:12 ` igor.mitsyanko.os
2016-12-23 17:47 ` Christian Lamparter
2016-11-22 14:44 ` IgorMitsyanko
2016-11-28 16:34 ` Kyle McMartin
2016-11-28 17:10 ` Oleksij Rempel
2016-11-28 17:33 ` Oleksij Rempel
2016-11-28 19:01 ` IgorMitsyanko
2016-11-29 3:49 ` Oleksij Rempel
2016-11-29 9:10 ` IgorMitsyanko
2016-11-29 9:34 ` Arend Van Spriel
2016-11-29 10:22 ` IgorMitsyanko
2016-11-28 22:07 ` IgorMitsyanko
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