From: Justin Chen <justinpopo6@gmail.com>
To: netdev@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com,
"Justin Chen" <justinpopo6@gmail.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Doug Berger" <opendmb@gmail.com>, "Andrew Lunn" <andrew@lunn.ch>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Russell King" <linux@armlinux.org.uk>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Rafał Miłecki" <rafal@milecki.pl>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Michael Chan" <michael.chan@broadcom.com>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-kernel@vger.kernel.org (open list),
linux-media@vger.kernel.org (open list:DMA BUFFER SHARING
FRAMEWORK),
dri-devel@lists.freedesktop.org (open list:DMA BUFFER SHARING
FRAMEWORK),
linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER
SHARING FRAMEWORK)
Subject: [PATCH net-next 3/5] net: bcmasp: Add support for ASP2.0 Ethernet controller
Date: Fri, 24 Sep 2021 14:44:49 -0700 [thread overview]
Message-ID: <1632519891-26510-4-git-send-email-justinpopo6@gmail.com> (raw)
In-Reply-To: <1632519891-26510-1-git-send-email-justinpopo6@gmail.com>
Add support for the Broadcom ASP 2.0 Ethernet controller which is first
introduced with 72165. This controller features two distinct Ethernet
ports that can be independently operated.
This patch supports:
- Wake-on-LAN using magic packets
- basic ethtool operations (link, counters, message level)
- MAC destination address filtering (promiscuous, ALL_MULTI, etc.)
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/net/ethernet/broadcom/Kconfig | 11 +
drivers/net/ethernet/broadcom/Makefile | 1 +
drivers/net/ethernet/broadcom/asp2/Makefile | 2 +
drivers/net/ethernet/broadcom/asp2/bcmasp.c | 1351 +++++++++++++++++++
drivers/net/ethernet/broadcom/asp2/bcmasp.h | 565 ++++++++
.../net/ethernet/broadcom/asp2/bcmasp_ethtool.c | 628 +++++++++
drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c | 1414 ++++++++++++++++++++
.../net/ethernet/broadcom/asp2/bcmasp_intf_defs.h | 187 +++
8 files changed, 4159 insertions(+)
create mode 100644 drivers/net/ethernet/broadcom/asp2/Makefile
create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp.c
create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp.h
create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 56e0fb0..244b389 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -253,4 +253,15 @@ config BNXT_HWMON
Say Y if you want to expose the thermal sensor data on NetXtreme-C/E
devices, via the hwmon sysfs interface.
+config BCMASP
+ tristate "Broadcom ASP 2.0 Ethernet support"
+ default ARCH_BRCMSTB
+ depends on OF
+ select MII
+ select PHYLIB
+ select MDIO_BCM_UNIMAC
+ help
+ This configuration enables the Broadcom ASP 2.0 Ethernet controller
+ driver which is present in Broadcom STB SoCs such as 72165.
+
endif # NET_VENDOR_BROADCOM
diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile
index 0ddfb5b..bac5cb6 100644
--- a/drivers/net/ethernet/broadcom/Makefile
+++ b/drivers/net/ethernet/broadcom/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_BGMAC_BCMA) += bgmac-bcma.o bgmac-bcma-mdio.o
obj-$(CONFIG_BGMAC_PLATFORM) += bgmac-platform.o
obj-$(CONFIG_SYSTEMPORT) += bcmsysport.o
obj-$(CONFIG_BNXT) += bnxt/
+obj-$(CONFIG_BCMASP) += asp2/
diff --git a/drivers/net/ethernet/broadcom/asp2/Makefile b/drivers/net/ethernet/broadcom/asp2/Makefile
new file mode 100644
index 0000000..e075503
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_BCMASP) += bcm-asp.o
+bcm-asp-objs := bcmasp.o bcmasp_intf.o bcmasp_ethtool.o
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
new file mode 100644
index 0000000..72effa8
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -0,0 +1,1351 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Broadcom STB ASP 2.0 Driver
+ *
+ * Copyright (c) 2020 Broadcom
+ */
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+
+#include "bcmasp.h"
+
+static const struct of_device_id bcmasp_of_match[] = {
+ { .compatible = "brcm,asp-v2.0", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_of_match);
+
+static const struct of_device_id bcmasp_mdio_of_match[] = {
+ { .compatible = "brcm,asp-v2.0-mdio", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_of_match);
+
+static inline void _intr2_mask_clear(struct bcmasp_priv *priv, u32 mask)
+{
+ priv->irq_mask &= ~mask;
+ intr2_core_wl(priv, mask, ASP_INTR2_MASK_CLEAR);
+}
+
+static inline void _intr2_mask_set(struct bcmasp_priv *priv, u32 mask)
+{
+ intr2_core_wl(priv, mask, ASP_INTR2_MASK_SET);
+ priv->irq_mask |= mask;
+}
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ int ch = intf->channel;
+
+ if (en)
+ _intr2_mask_clear(priv, ASP_INTR2_TX_DESC(ch));
+ else
+ _intr2_mask_set(priv, ASP_INTR2_TX_DESC(ch));
+}
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ int ch = intf->channel;
+
+ if (en)
+ _intr2_mask_clear(priv, ASP_INTR2_RX_ECH(ch));
+ else
+ _intr2_mask_set(priv, ASP_INTR2_RX_ECH(ch));
+}
+
+static irqreturn_t bcmasp_isr(int irq, void *data)
+{
+ struct bcmasp_priv *priv = data;
+ struct bcmasp_intf *intf;
+ u32 status, i;
+
+ status = intr2_core_rl(priv, ASP_INTR2_STATUS) &
+ ~intr2_core_rl(priv, ASP_INTR2_MASK_STATUS);
+ intr2_core_wl(priv, status, ASP_INTR2_CLEAR);
+
+ if (unlikely(status == 0)) {
+ dev_warn(&priv->pdev->dev, "spurious interrupt\n");
+ return IRQ_NONE;
+ }
+
+ for (i = 0; i < priv->intf_count; i++) {
+ intf = priv->intfs[i];
+ if (unlikely(!intf))
+ continue;
+
+ if (status & ASP_INTR2_RX_ECH(intf->channel)) {
+ if (likely(napi_schedule_prep(&intf->rx_napi))) {
+ bcmasp_enable_rx_irq(intf, 0);
+ __napi_schedule_irqoff(&intf->rx_napi);
+ }
+ }
+
+ if (status & ASP_INTR2_TX_DESC(intf->channel)) {
+ if (likely(napi_schedule_prep(&intf->tx_napi))) {
+ bcmasp_enable_tx_irq(intf, 0);
+ __napi_schedule_irqoff(&intf->tx_napi);
+ }
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ u32 mask;
+
+ switch (intf->port) {
+ case 0:
+ mask = ASP_CTRL_UMAC0_FLUSH_MASK;
+ break;
+ case 1:
+ mask = ASP_CTRL_UMAC1_FLUSH_MASK;
+ break;
+ default:
+ /* Not valid port */
+ return;
+ }
+
+ rx_ctrl_core_wl(priv, mask, ASP_RX_CTRL_FLUSH);
+}
+
+static void bcmasp_netfilt_hw_en_wake(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt)
+{
+ rx_filter_core_wl(priv, ASP_RX_FILTER_NET_OFFSET_L3_1(64),
+ ASP_RX_FILTER_NET_OFFSET(nfilt->hw_index));
+
+ rx_filter_core_wl(priv, ASP_RX_FILTER_NET_OFFSET_L2(32) |
+ ASP_RX_FILTER_NET_OFFSET_L3_0(32) |
+ ASP_RX_FILTER_NET_OFFSET_L3_1(96) |
+ ASP_RX_FILTER_NET_OFFSET_L4(32),
+ ASP_RX_FILTER_NET_OFFSET(nfilt->hw_index + 1));
+
+ rx_filter_core_wl(priv, ASP_RX_FILTER_NET_CFG_CH(nfilt->port + 8) |
+ ASP_RX_FILTER_NET_CFG_EN |
+ ASP_RX_FILTER_NET_CFG_L2_EN |
+ ASP_RX_FILTER_NET_CFG_L3_EN |
+ ASP_RX_FILTER_NET_CFG_L4_EN |
+ ASP_RX_FILTER_NET_CFG_L3_FRM(2) |
+ ASP_RX_FILTER_NET_CFG_L4_FRM(2) |
+ ASP_RX_FILTER_NET_CFG_UMC(nfilt->port),
+ ASP_RX_FILTER_NET_CFG(nfilt->hw_index));
+
+ rx_filter_core_wl(priv, ASP_RX_FILTER_NET_CFG_CH(nfilt->port + 8) |
+ ASP_RX_FILTER_NET_CFG_EN |
+ ASP_RX_FILTER_NET_CFG_L2_EN |
+ ASP_RX_FILTER_NET_CFG_L3_EN |
+ ASP_RX_FILTER_NET_CFG_L4_EN |
+ ASP_RX_FILTER_NET_CFG_L3_FRM(2) |
+ ASP_RX_FILTER_NET_CFG_L4_FRM(2) |
+ ASP_RX_FILTER_NET_CFG_UMC(nfilt->port),
+ ASP_RX_FILTER_NET_CFG(nfilt->hw_index + 1));
+}
+
+#define MAX_WAKE_FILTER_SIZE 256
+enum asp_netfilt_reg_type {
+ ASP_NETFILT_MATCH = 0,
+ ASP_NETFILT_MASK,
+ ASP_NETFILT_MAX
+};
+
+static int bcmasp_netfilt_get_reg_offset(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ enum asp_netfilt_reg_type reg_type,
+ u32 offset)
+{
+ u32 block_index, filter_sel;
+
+ if (offset < 32) {
+ block_index = ASP_RX_FILTER_L2;
+ filter_sel = nfilt->hw_index;
+ } else if (offset < 64) {
+ block_index = ASP_RX_FILTER_L2;
+ filter_sel = nfilt->hw_index + 1;
+ } else if (offset < 96) {
+ block_index = ASP_RX_FILTER_L3_0;
+ filter_sel = nfilt->hw_index;
+ } else if (offset < 128) {
+ block_index = ASP_RX_FILTER_L3_0;
+ filter_sel = nfilt->hw_index + 1;
+ } else if (offset < 160) {
+ block_index = ASP_RX_FILTER_L3_1;
+ filter_sel = nfilt->hw_index;
+ } else if (offset < 192) {
+ block_index = ASP_RX_FILTER_L3_1;
+ filter_sel = nfilt->hw_index + 1;
+ } else if (offset < 224) {
+ block_index = ASP_RX_FILTER_L4;
+ filter_sel = nfilt->hw_index;
+ } else if (offset < 256) {
+ block_index = ASP_RX_FILTER_L4;
+ filter_sel = nfilt->hw_index + 1;
+ }
+
+ switch (reg_type) {
+ case ASP_NETFILT_MATCH:
+ return ASP_RX_FILTER_NET_PAT(filter_sel, block_index,
+ (offset % 32));
+ case ASP_NETFILT_MASK:
+ return ASP_RX_FILTER_NET_MASK(filter_sel, block_index,
+ (offset % 32));
+ default:
+ return -EINVAL;
+ }
+}
+
+static void bcmasp_netfilt_wr(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ enum asp_netfilt_reg_type reg_type,
+ u32 val, u32 offset)
+{
+ int reg_offset;
+
+ /* HW only accepts 4 byte aligned writes */
+ if (!IS_ALIGNED(offset, 4) || (offset > MAX_WAKE_FILTER_SIZE))
+ return;
+
+ reg_offset = bcmasp_netfilt_get_reg_offset(priv, nfilt, reg_type,
+ offset);
+
+ rx_filter_core_wl(priv, val, reg_offset);
+}
+
+static u32 bcmasp_netfilt_rd(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ enum asp_netfilt_reg_type reg_type,
+ u32 offset)
+{
+ int reg_offset;
+
+ /* HW only accepts 4 byte aligned writes */
+ if (!IS_ALIGNED(offset, 4) || (offset > MAX_WAKE_FILTER_SIZE))
+ return 0;
+
+ reg_offset = bcmasp_netfilt_get_reg_offset(priv, nfilt, reg_type,
+ offset);
+
+ return rx_filter_core_rl(priv, reg_offset);
+}
+
+static int bcmasp_netfilt_wr_m_wake(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ u32 offset, void *match, void *mask,
+ size_t size)
+{
+ u32 shift, mask_val = 0, match_val = 0;
+ bool first_byte = true;
+
+ if ((offset + size) > MAX_WAKE_FILTER_SIZE)
+ return -EINVAL;
+
+ while (size--) {
+ /* The HW only accepts 4 byte aligned writes, so if we
+ * begin unaligned or if remaining bytes less than 4,
+ * we need to read then write to avoid losing current
+ * register state
+ */
+ if (first_byte && (!IS_ALIGNED(offset, 4) || (size < 3))) {
+ match_val = bcmasp_netfilt_rd(priv, nfilt,
+ ASP_NETFILT_MATCH,
+ ALIGN_DOWN(offset, 4));
+ mask_val = bcmasp_netfilt_rd(priv, nfilt,
+ ASP_NETFILT_MASK,
+ ALIGN_DOWN(offset, 4));
+ }
+
+ shift = (3 - (offset % 4)) * 8;
+ match_val &= ~GENMASK(shift + 7, shift);
+ mask_val &= ~GENMASK(shift + 7, shift);
+ match_val |= (u32)(*((u8 *)match) << shift);
+ mask_val |= (u32)(*((u8 *)mask) << shift);
+
+
+ /* If last byte or last byte of word, write to reg */
+ if (!size || ((offset % 4) == 3)) {
+ bcmasp_netfilt_wr(priv, nfilt, ASP_NETFILT_MATCH,
+ match_val, ALIGN_DOWN(offset, 4));
+ bcmasp_netfilt_wr(priv, nfilt, ASP_NETFILT_MASK,
+ mask_val, ALIGN_DOWN(offset, 4));
+ first_byte = true;
+ } else {
+ first_byte = false;
+ }
+
+ offset++;
+ match++;
+ mask++;
+ }
+
+ return 0;
+}
+
+static void bcmasp_netfilt_reset_hw(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt)
+{
+ int i;
+
+ for (i = 0; i < MAX_WAKE_FILTER_SIZE; i += 4) {
+ bcmasp_netfilt_wr(priv, nfilt, ASP_NETFILT_MATCH, 0, i);
+ bcmasp_netfilt_wr(priv, nfilt, ASP_NETFILT_MASK, 0, i);
+ }
+}
+
+static void bcmasp_netfilt_tcpip4_wr(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ struct ethtool_tcpip4_spec *match,
+ struct ethtool_tcpip4_spec *mask,
+ u32 offset)
+{
+ __be16 val_16, mask_16;
+
+ val_16 = htons(ETH_P_IP);
+ mask_16 = 0xFFFF;
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, (ETH_ALEN * 2) + offset,
+ &val_16, &mask_16, sizeof(val_16));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 1,
+ &match->tos, &mask->tos,
+ sizeof(match->tos));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 12,
+ &match->ip4src, &mask->ip4src,
+ sizeof(match->ip4src));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 16,
+ &match->ip4dst, &mask->ip4dst,
+ sizeof(match->ip4dst));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 20,
+ &match->psrc, &mask->psrc,
+ sizeof(match->psrc));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 22,
+ &match->pdst, &mask->pdst,
+ sizeof(match->pdst));
+}
+
+static void bcmasp_netfilt_tcpip6_wr(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt,
+ struct ethtool_tcpip6_spec *match,
+ struct ethtool_tcpip6_spec *mask,
+ u32 offset)
+{
+ __be16 val_16, mask_16;
+
+ val_16 = htons(ETH_P_IPV6);
+ mask_16 = 0xFFFF;
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, (ETH_ALEN * 2) + offset,
+ &val_16, &mask_16, sizeof(val_16));
+ val_16 = match->tclass << 4;
+ mask_16 = mask->tclass << 4;
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset,
+ &val_16, &mask_16, sizeof(val_16));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 8,
+ &match->ip6src, &mask->ip6src,
+ sizeof(match->ip6src));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 24,
+ &match->ip6dst, &mask->ip6dst,
+ sizeof(match->ip6dst));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 40,
+ &match->psrc, &mask->psrc,
+ sizeof(match->psrc));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 42,
+ &match->pdst, &mask->pdst,
+ sizeof(match->pdst));
+}
+
+static int bcmasp_netfilt_wr_to_hw(struct bcmasp_priv *priv,
+ struct bcmasp_net_filter *nfilt)
+{
+ struct ethtool_rx_flow_spec *fs = &nfilt->fs;
+ unsigned int offset = 0;
+ __be16 val_16, mask_16;
+ u8 val_8, mask_8;
+
+ /* Shouldn't get here, but just a quick sanity test */
+ if (nfilt->reserved) {
+ dev_warn(&priv->pdev->dev, "Attempted to use reserved filter\n");
+ return -EINVAL;
+ }
+
+ /* Currently only supports wake filters */
+ if (!nfilt->wake_filter)
+ return -EINVAL;
+
+ bcmasp_netfilt_reset_hw(priv, nfilt);
+
+ if (fs->flow_type & FLOW_MAC_EXT) {
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, 0, &fs->h_ext.h_dest,
+ &fs->m_ext.h_dest,
+ sizeof(fs->h_ext.h_dest));
+ }
+
+ if ((fs->flow_type & FLOW_EXT) &&
+ (fs->m_ext.vlan_etype || fs->m_ext.vlan_tci)) {
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, (ETH_ALEN * 2),
+ &fs->h_ext.vlan_etype,
+ &fs->m_ext.vlan_etype,
+ sizeof(fs->h_ext.vlan_etype));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ((ETH_ALEN * 2) + 2),
+ &fs->h_ext.vlan_tci,
+ &fs->m_ext.vlan_tci,
+ sizeof(fs->h_ext.vlan_tci));
+ offset += VLAN_HLEN;
+ }
+
+ switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
+ case ETHER_FLOW:
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, 0,
+ &fs->h_u.ether_spec.h_dest,
+ &fs->m_u.ether_spec.h_dest,
+ sizeof(fs->h_u.ether_spec.h_dest));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_ALEN,
+ &fs->h_u.ether_spec.h_source,
+ &fs->m_u.ether_spec.h_source,
+ sizeof(fs->h_u.ether_spec.h_source));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, (ETH_ALEN * 2) + offset,
+ &fs->h_u.ether_spec.h_proto,
+ &fs->m_u.ether_spec.h_proto,
+ sizeof(fs->h_u.ether_spec.h_proto));
+
+ break;
+ case IP_USER_FLOW:
+ val_16 = htons(ETH_P_IP);
+ mask_16 = 0xFFFF;
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, (ETH_ALEN * 2) + offset,
+ &val_16, &mask_16, sizeof(val_16));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 1,
+ &fs->h_u.usr_ip4_spec.tos,
+ &fs->m_u.usr_ip4_spec.tos,
+ sizeof(fs->h_u.usr_ip4_spec.tos));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 9,
+ &fs->h_u.usr_ip4_spec.proto,
+ &fs->m_u.usr_ip4_spec.proto,
+ sizeof(fs->h_u.usr_ip4_spec.proto));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 12,
+ &fs->h_u.usr_ip4_spec.ip4src,
+ &fs->m_u.usr_ip4_spec.ip4src,
+ sizeof(fs->h_u.usr_ip4_spec.ip4src));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 16,
+ &fs->h_u.usr_ip4_spec.ip4dst,
+ &fs->m_u.usr_ip4_spec.ip4dst,
+ sizeof(fs->h_u.usr_ip4_spec.ip4dst));
+ if (!fs->m_u.usr_ip4_spec.l4_4_bytes)
+ break;
+
+ /* Only supports 20 byte IPv4 header */
+ val_8 = 0x45;
+ mask_8 = 0xFF;
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset,
+ &val_8, &mask_8, sizeof(val_8));
+ bcmasp_netfilt_wr_m_wake(priv, nfilt,
+ ETH_HLEN + 20 + offset,
+ &fs->h_u.usr_ip4_spec.l4_4_bytes,
+ &fs->m_u.usr_ip4_spec.l4_4_bytes,
+ sizeof(
+ fs->h_u.usr_ip4_spec.l4_4_bytes));
+ break;
+ case TCP_V4_FLOW:
+ val_8 = IPPROTO_TCP;
+ mask_8 = 0xFF;
+ bcmasp_netfilt_tcpip4_wr(priv, nfilt, &fs->h_u.tcp_ip4_spec,
+ &fs->m_u.tcp_ip4_spec, offset);
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 9,
+ &val_8, &mask_8, sizeof(val_8));
+ break;
+ case UDP_V4_FLOW:
+ val_8 = IPPROTO_UDP;
+ mask_8 = 0xFF;
+ bcmasp_netfilt_tcpip4_wr(priv, nfilt, &fs->h_u.udp_ip4_spec,
+ &fs->m_u.udp_ip4_spec, offset);
+
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 9,
+ &val_8, &mask_8, sizeof(val_8));
+ break;
+ case TCP_V6_FLOW:
+ val_8 = IPPROTO_TCP;
+ mask_8 = 0xFF;
+ bcmasp_netfilt_tcpip6_wr(priv, nfilt, &fs->h_u.tcp_ip6_spec,
+ &fs->m_u.tcp_ip6_spec, offset);
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 6,
+ &val_8, &mask_8, sizeof(val_8));
+ break;
+ case UDP_V6_FLOW:
+ val_8 = IPPROTO_UDP;
+ mask_8 = 0xFF;
+ bcmasp_netfilt_tcpip6_wr(priv, nfilt, &fs->h_u.udp_ip6_spec,
+ &fs->m_u.udp_ip6_spec, offset);
+ bcmasp_netfilt_wr_m_wake(priv, nfilt, ETH_HLEN + offset + 6,
+ &val_8, &mask_8, sizeof(val_8));
+ break;
+ }
+
+ bcmasp_netfilt_hw_en_wake(priv, nfilt);
+
+ return 0;
+}
+
+void bcmasp_netfilt_suspend(struct bcmasp_intf *intf)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ bool write = false;
+ int ret, i;
+
+ /* Write all filters to HW */
+ for (i = 0; i < ASP_RX_NET_FILTER_MAX; i++) {
+ /* If the filter is reserved by firmware or does not match
+ * the port, skip programming.
+ */
+ if (priv->net_filters[i].reserved ||
+ (priv->net_filters[i].port != intf->port))
+ continue;
+
+ if (i > 0 && (i % 2) &&
+ priv->net_filters[i].wake_filter &&
+ priv->net_filters[i - 1].wake_filter)
+ continue;
+
+ ret = bcmasp_netfilt_wr_to_hw(priv, &priv->net_filters[i]);
+ if (!ret)
+ write = true;
+ }
+
+ /* Successfully programmed at least one wake filter
+ * so enable top level wake config
+ */
+ if (write)
+ rx_filter_core_wl(priv, (ASP_RX_FILTER_OPUT_EN |
+ ASP_RX_FILTER_LNR_MD |
+ ASP_RX_FILTER_GEN_WK_EN |
+ ASP_RX_FILTER_NT_FLT_EN),
+ ASP_RX_FILTER_BLK_CTRL);
+}
+
+int bcmasp_netfilt_get_max(struct bcmasp_intf *intf)
+{
+ return intf->parent->net_filters_count_max;
+}
+
+void bcmasp_netfilt_get_all_active(struct bcmasp_intf *intf, u32 *rule_locs,
+ u32 *rule_cnt)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ int j = 0, i;
+
+ for (i = 0; i < ASP_RX_NET_FILTER_MAX; i++) {
+ if (priv->net_filters[i].reserved ||
+ !priv->net_filters[i].claimed ||
+ (priv->net_filters[i].port != intf->port))
+ continue;
+
+ if (i > 0 && (i % 2) &&
+ priv->net_filters[i].wake_filter &&
+ priv->net_filters[i - 1].wake_filter)
+ continue;
+
+ rule_locs[j++] = priv->net_filters[i].fs.location;
+ }
+
+ *rule_cnt = j;
+}
+
+int bcmasp_netfilt_get_active(struct bcmasp_intf *intf)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ int cnt = 0, i;
+
+ for (i = 0; i < ASP_RX_NET_FILTER_MAX; i++) {
+ if (priv->net_filters[i].reserved ||
+ !priv->net_filters[i].claimed ||
+ (priv->net_filters[i].port != intf->port))
+ continue;
+
+ /* Skip over a wake filter pair */
+ if (i > 0 && (i % 2) &&
+ priv->net_filters[i].wake_filter &&
+ priv->net_filters[i - 1].wake_filter)
+ continue;
+
+ cnt++;
+ }
+
+ return cnt;
+}
+
+int bcmasp_netfilt_check_dup(struct bcmasp_intf *intf,
+ struct ethtool_rx_flow_spec *fs)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ struct ethtool_rx_flow_spec *cur;
+ size_t fs_size = 0;
+ int i;
+
+ for ( i = 0; i < ASP_RX_NET_FILTER_MAX; i++) {
+
+ if (priv->net_filters[i].reserved ||
+ !priv->net_filters[i].claimed ||
+ (priv->net_filters[i].port != intf->port)) {
+ continue;
+ }
+
+ cur = &priv->net_filters[i].fs;
+
+ if (cur->flow_type != fs->flow_type ||
+ cur->ring_cookie != fs->ring_cookie)
+ continue;
+
+ switch (fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
+ case ETHER_FLOW:
+ fs_size = sizeof(struct ethhdr);
+ break;
+ case IP_USER_FLOW:
+ fs_size = sizeof(struct ethtool_usrip4_spec);
+ break;
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ fs_size = sizeof(struct ethtool_tcpip6_spec);
+ break;
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ fs_size = sizeof(struct ethtool_tcpip4_spec);
+ break;
+ default:
+ continue;
+ }
+
+ if (memcmp(&cur->h_u, &fs->h_u, fs_size) ||
+ memcmp(&cur->m_u, &fs->m_u, fs_size))
+ continue;
+
+ if (cur->flow_type & FLOW_EXT) {
+ if ((cur->h_ext.vlan_etype != fs->h_ext.vlan_etype) ||
+ (cur->m_ext.vlan_etype != fs->m_ext.vlan_etype) ||
+ (cur->h_ext.vlan_tci != fs->h_ext.vlan_tci) ||
+ (cur->m_ext.vlan_tci != fs->m_ext.vlan_tci) ||
+ (cur->h_ext.data[0] != fs->h_ext.data[0]))
+ continue;
+ }
+ if (cur->flow_type & FLOW_MAC_EXT) {
+ if (memcmp(&cur->h_ext.h_dest,
+ &fs->h_ext.h_dest, ETH_ALEN) ||
+ memcmp(&cur->m_ext.h_dest,
+ &fs->m_ext.h_dest, ETH_ALEN))
+ continue;
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+/* If no network filter found, return open filter.
+ * If no more open filters return NULL
+ */
+struct bcmasp_net_filter *bcmasp_netfilt_get_init(struct bcmasp_intf *intf,
+ int loc, bool wake_filter,
+ bool init)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ struct bcmasp_net_filter *nfilter = NULL;
+ int i, open_index = -1;
+
+ /* Check whether we exceed the filter table capacity */
+ if (loc != RX_CLS_LOC_ANY && loc >= ASP_RX_NET_FILTER_MAX)
+ return ERR_PTR(-EINVAL);
+
+ /* If the filter location is busy (already claimed or reserved) and we
+ * are initializing the filter (insertion), return a busy error code.
+ */
+ if (loc != RX_CLS_LOC_ANY && init &&
+ (priv->net_filters[loc].claimed || priv->net_filters[loc].reserved))
+ return ERR_PTR(-EBUSY);
+
+ /* We need two filters for wake-up, so we cannot use an odd filter */
+ if (wake_filter && loc != RX_CLS_LOC_ANY && (loc % 2))
+ return ERR_PTR(-EINVAL);
+
+ /* Initialize the loop index based on the desired location or from 0 */
+ i = loc == RX_CLS_LOC_ANY ? 0 : loc;
+
+ for ( ; i < ASP_RX_NET_FILTER_MAX; i++) {
+ if (priv->net_filters[i].reserved)
+ continue;
+
+ /* Found matching network filter */
+ if (!init &&
+ priv->net_filters[i].claimed &&
+ (priv->net_filters[i].hw_index == i) &&
+ (priv->net_filters[i].port == intf->port))
+ return &priv->net_filters[i];
+
+ /* If we don't need a new filter or new filter already found */
+ if (!init || open_index >= 0)
+ continue;
+
+ /* Wake filter conslidates two filters to cover more bytes
+ * Wake filter is open if...
+ * 1. It is an even filter
+ * 2. The current and next filter is not claimed
+ */
+ if (wake_filter && !(i % 2) && !priv->net_filters[i].claimed &&
+ !priv->net_filters[i + 1].claimed)
+ open_index = i;
+ else if (!priv->net_filters[i].claimed)
+ open_index = i;
+ }
+
+ if (open_index >= 0) {
+ nfilter = &priv->net_filters[open_index];
+ nfilter->claimed = true;
+ nfilter->port = intf->port;
+ nfilter->hw_index = open_index;
+ }
+
+ if (wake_filter && (open_index >= 0)) {
+ /* Claim next filter */
+ priv->net_filters[open_index + 1].claimed = true;
+ priv->net_filters[open_index + 1].wake_filter = true;
+ nfilter->wake_filter = true;
+ }
+
+ return nfilter ? nfilter : ERR_PTR(-EINVAL);
+}
+
+void bcmasp_netfilt_release(struct bcmasp_intf *intf,
+ struct bcmasp_net_filter *nfilt)
+{
+ struct bcmasp_priv *priv = intf->parent;
+
+ if (nfilt->wake_filter) {
+ memset(&priv->net_filters[nfilt->hw_index + 1], 0,
+ sizeof(struct bcmasp_net_filter));
+ }
+
+ memset(nfilt, 0, sizeof(struct bcmasp_net_filter));
+}
+
+static inline void bcmasp_addr_to_uint(unsigned char *addr, u32 *high, u32 *low)
+{
+ *high = (u32)(addr[0] << 8 | addr[1]);
+ *low = (u32)(addr[2] << 24 | addr[3] << 16 | addr[4] << 8 |
+ addr[5]);
+}
+
+static void bcmasp_set_mda_filter(struct bcmasp_intf *intf,
+ unsigned char *addr,
+ unsigned char *mask,
+ unsigned int i)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ u32 addr_h, addr_l, mask_h, mask_l;
+
+ /* Set local copy */
+ memcpy(priv->mda_filters[i].mask, mask, ETH_ALEN);
+ memcpy(priv->mda_filters[i].addr, addr, ETH_ALEN);
+
+ /* Write to HW */
+ bcmasp_addr_to_uint(priv->mda_filters[i].mask, &mask_h, &mask_l);
+ bcmasp_addr_to_uint(priv->mda_filters[i].addr, &addr_h, &addr_l);
+ rx_filter_core_wl(priv, addr_h, ASP_RX_FILTER_MDA_PAT_H(i));
+ rx_filter_core_wl(priv, addr_l, ASP_RX_FILTER_MDA_PAT_L(i));
+ rx_filter_core_wl(priv, mask_h, ASP_RX_FILTER_MDA_MSK_H(i));
+ rx_filter_core_wl(priv, mask_l, ASP_RX_FILTER_MDA_MSK_L(i));
+}
+
+static void bcmasp_en_mda_filter(struct bcmasp_intf *intf, bool en,
+ unsigned int i)
+{
+ struct bcmasp_priv *priv = intf->parent;
+
+ if (priv->mda_filters[i].en == en)
+ return;
+
+ priv->mda_filters[i].en = en;
+ priv->mda_filters[i].port = intf->port;
+
+ rx_filter_core_wl(priv, ((intf->channel + 8) |
+ (en << ASP_RX_FILTER_MDA_CFG_EN_SHIFT) |
+ ASP_RX_FILTER_MDA_CFG_UMC_SEL(intf->port)),
+ ASP_RX_FILTER_MDA_CFG(i));
+}
+
+/* There are 32 MDA filters shared between all ports, we reserve 4 filters per
+ * port for the following.
+ * - Promisc: Filter to allow all packets when promisc is enabled
+ * - All Multicast
+ * - Broadcast
+ * - Own address
+ *
+ * The reserved filters are identified as so.
+ * - Promisc: (Port * 4) + 0
+ * - All Multicast: (Port * 4) + 1
+ * - Broadcast: (Port * 4) + 2
+ * - Own address: (Port * 4) + 3
+ */
+enum asp_rx_filter_id {
+ ASP_RX_FILTER_PROMISC = 0,
+ ASP_RX_FILTER_ALLMULTI,
+ ASP_RX_FILTER_BROADCAST,
+ ASP_RX_FILTER_OWN_ADDR,
+ ASP_RX_FILTER_RES_COUNT,
+};
+
+#define ASP_RX_FILT_RES_COUNT(intf) ((intf)->parent->intf_count \
+ * ASP_RX_FILTER_RES_COUNT)
+
+#define ASP_RX_FILT(intf, name) (((intf)->port * \
+ ASP_RX_FILTER_RES_COUNT) \
+ + ASP_RX_FILTER_##name)
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en)
+{
+ unsigned char promisc[ETH_ALEN];
+ unsigned int i = ASP_RX_FILT(intf, PROMISC);
+
+ eth_zero_addr(promisc);
+ /* Set mask to 00:00:00:00:00:00 to match all packets */
+ bcmasp_set_mda_filter(intf, promisc, promisc, i);
+ bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en)
+{
+ unsigned char allmulti[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00};
+ unsigned int i = ASP_RX_FILT(intf, ALLMULTI);
+
+ /* Set mask to 01:00:00:00:00:00 to match all multicast */
+ bcmasp_set_mda_filter(intf, allmulti, allmulti, i);
+ bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en)
+{
+ unsigned char addr[ETH_ALEN];
+ unsigned int i = ASP_RX_FILT(intf, BROADCAST);
+
+ eth_broadcast_addr(addr);
+ bcmasp_set_mda_filter(intf, addr, addr, i);
+ bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, unsigned char *addr, bool en)
+{
+ unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ unsigned int i = ASP_RX_FILT(intf, OWN_ADDR);
+
+ bcmasp_set_mda_filter(intf, addr, mask, i);
+ bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ unsigned int i;
+
+ /* Disable all filters held by this port */
+ for (i = ASP_RX_FILT_RES_COUNT(intf); i < ASP_RX_FILTER_MAX; i++) {
+ if (priv->mda_filters[i].en &&
+ (priv->mda_filters[i].port == intf->port))
+ bcmasp_en_mda_filter(intf, 0, i);
+ }
+}
+
+static inline void u64_to_mac(unsigned char *addr, u64 val)
+{
+ addr[0] = (u8)(val >> 40);
+ addr[1] = (u8)(val >> 32);
+ addr[2] = (u8)(val >> 24);
+ addr[3] = (u8)(val >> 16);
+ addr[4] = (u8)(val >> 8);
+ addr[5] = (u8)val;
+}
+
+#define mac_to_u64(a) ((((u64)a[0]) << 40) | \
+ (((u64)a[1]) << 32) | \
+ (((u64)a[2]) << 24) | \
+ (((u64)a[3]) << 16) | \
+ (((u64)a[4]) << 8) | \
+ ((u64)a[5]))
+
+#define differ_one_bit(x, y) is_power_of_2((x) ^ (y))
+
+static int bcmasp_combine_set_filter(struct bcmasp_intf *intf,
+ unsigned char *addr, unsigned char *mask,
+ int i)
+{
+ u64 addr1, addr2, mask1, mask2, mask3;
+ unsigned char naddr[ETH_ALEN], nmask[ETH_ALEN];
+ struct bcmasp_priv *priv = intf->parent;
+
+ /* Switch to u64 to help with the calculations */
+ addr1 = mac_to_u64(priv->mda_filters[i].addr);
+ mask1 = mac_to_u64(priv->mda_filters[i].mask);
+ addr2 = mac_to_u64(addr);
+ mask2 = mac_to_u64(mask);
+
+ /* We can only combine filters in two cases
+ * 1. They share the same mask and are different by one bit
+ * 2. One filter resides within the other
+ */
+ if (mask1 == mask2) {
+ if (!differ_one_bit((addr1 & mask1), (addr2 & mask2)))
+ return -EINVAL;
+
+ /* Generate new mask */
+ mask3 = ((addr1 & mask1) ^ (addr2 & mask1)) ^ mask1;
+
+ /* Set new filter */
+ u64_to_mac(naddr, (addr1 & mask3));
+ u64_to_mac(nmask, mask3);
+ bcmasp_set_mda_filter(intf, naddr, nmask, i);
+ return 0;
+ }
+
+ /* Check if one filter resides within the other */
+ mask3 = mask1 & mask2;
+ if ((mask3 == mask1) && ((addr1 & mask1) == (addr2 & mask1))) {
+ /* Filter 2 resides within fitler 1, so everthing is good */
+ return 0;
+ } else if ((mask3 == mask2) && ((addr1 & mask2) == (addr2 & mask2))) {
+ /* Filter 1 resides within filter 2, so swap filters */
+ bcmasp_set_mda_filter(intf, addr, mask, i);
+ return 0;
+ }
+
+ /* Unable to combine */
+ return -EINVAL;
+}
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+ unsigned char *mask)
+{
+ struct bcmasp_priv *priv = intf->parent;
+ int i, ret;
+
+ for (i = ASP_RX_FILT_RES_COUNT(intf); i < ASP_RX_FILTER_MAX; i++) {
+ /* If filter not enabled or belongs to another port skip */
+ if (!priv->mda_filters[i].en ||
+ (priv->mda_filters[i].port != intf->port))
+ continue;
+
+ /* Attempt to combine filters */
+ ret = bcmasp_combine_set_filter(intf, addr, mask, i);
+ if (!ret) {
+ intf->mib.filters_combine_cnt++;
+ return 0;
+ }
+ }
+
+ /* Create new filter if possible */
+ for (i = ASP_RX_FILT_RES_COUNT(intf); i < ASP_RX_FILTER_MAX; i++) {
+ if (priv->mda_filters[i].en)
+ continue;
+
+ bcmasp_set_mda_filter(intf, addr, mask, i);
+ bcmasp_en_mda_filter(intf, 1, i);
+ return 0;
+ }
+
+ /* No room for new filter */
+ return -EINVAL;
+}
+
+static inline void bcmasp_core_init_filters(struct bcmasp_priv *priv)
+{
+ int i;
+
+ /* Disable all filters and reset software view since the HW
+ * can lose context while in deep sleep suspend states
+ */
+ for (i = 0; i < NUM_MDA_FILTERS; i++) {
+ rx_filter_core_wl(priv, 0x0, ASP_RX_FILTER_MDA_CFG(i));
+ priv->mda_filters[i].en = 0;
+ }
+
+ for (i = 0; i < NUM_NET_FILTERS; i++)
+ rx_filter_core_wl(priv, 0x0, ASP_RX_FILTER_NET_CFG(i));
+
+ /* Top level filter enable bit should be enabled at all times, set
+ * GEN_WAKE_CLEAR to clear the network filter wake-up which would
+ * otherwise be sticky
+ */
+ rx_filter_core_wl(priv, (ASP_RX_FILTER_OPUT_EN |
+ ASP_RX_FILTER_MDA_EN |
+ ASP_RX_FILTER_GEN_WK_CLR |
+ ASP_RX_FILTER_NT_FLT_EN),
+ ASP_RX_FILTER_BLK_CTRL);
+}
+
+/* ASP core initalization */
+static inline void bcmasp_core_init(struct bcmasp_priv *priv)
+{
+ tx_analytics_core_wl(priv, 0x0, ASP_TX_ANALYTICS_CTRL);
+ rx_analytics_core_wl(priv, 0x4, ASP_RX_ANALYTICS_CTRL);
+
+ rx_ctrl_core_wl(priv, (ASP_RX_CTRL_S2F_DEFAULT_EN |
+ (0xd << ASP_RX_CTRL_S2F_CHID_SHIFT)),
+ ASP_RX_CTRL_S2F);
+
+ rx_edpkt_core_wl(priv, (ASP_EDPKT_HDR_SZ_128 << ASP_EDPKT_HDR_SZ_SHIFT),
+ ASP_EDPKT_HDR_CFG);
+ rx_edpkt_core_wl(priv,
+ (ASP_EDPKT_ENDI_BT_SWP_WD << ASP_EDPKT_ENDI_DESC_SHIFT),
+ ASP_EDPKT_ENDI);
+
+ rx_edpkt_core_wl(priv, 0x1b, ASP_EDPKT_BURST_BUF_PSCAL_TOUT);
+ rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_WRITE_TOUT);
+ rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_READ_TOUT);
+
+ rx_edpkt_core_wl(priv, ASP_EDPKT_ENABLE_EN, ASP_EDPKT_ENABLE);
+
+ /* Disable and clear both UniMAC's wake-up interrupts to avoid
+ * sticky interrupts.
+ */
+ _intr2_mask_set(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE);
+ intr2_core_wl(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE,
+ ASP_INTR2_CLEAR);
+}
+
+static void bcmasp_core_clock_select(struct bcmasp_priv *priv, bool slow)
+{
+ u32 reg;
+
+ reg = ctrl_core_rl(priv, ASP_CTRL_CORE_CLOCK_SELECT);
+ if (slow)
+ reg &= ~ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+ else
+ reg |= ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+ ctrl_core_wl(priv, reg, ASP_CTRL_CORE_CLOCK_SELECT);
+}
+
+static void bcmasp_core_clock_set_ll(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+ u32 reg;
+
+ reg = ctrl_core_rl(priv, ASP_CTRL_CLOCK_CTRL);
+ reg &= ~clr;
+ reg |= set;
+ ctrl_core_wl(priv, reg, ASP_CTRL_CLOCK_CTRL);
+}
+
+static void bcmasp_core_clock_set(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->clk_lock, flags);
+ bcmasp_core_clock_set_ll(priv, clr, set);
+ spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en)
+{
+ u32 intf_mask = ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(intf->channel);
+ struct bcmasp_priv *priv = intf->parent;
+ unsigned long flags;
+ u32 reg;
+
+ /* When enabling an interface, if the RX or TX clocks were not enabled,
+ * enable them. Conversely, while disabling an interface, if this is
+ * the last one enabled, we can turn off the shared RX and TX clocks as
+ * well. We control enable bits which is why we test for equality on
+ * the RGMII clock bit mask.
+ */
+ spin_lock_irqsave(&priv->clk_lock, flags);
+ if (en) {
+ intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+ ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+ bcmasp_core_clock_set_ll(priv, intf_mask, 0);
+ } else {
+ reg = ctrl_core_rl(priv, ASP_CTRL_CLOCK_CTRL) | intf_mask;
+ if ((reg & ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK) ==
+ ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK)
+ intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+ ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+ bcmasp_core_clock_set_ll(priv, 0, intf_mask);
+ }
+ spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+static int bcmasp_probe(struct platform_device *pdev)
+{
+ struct bcmasp_priv *priv;
+ struct device_node *ports_node, *intf_node;
+ struct device *dev = &pdev->dev;
+ int ret, i, wol_irq, count = 0;
+ struct bcmasp_intf *intf;
+ struct resource *r;
+ u32 u32_reserved_filters_bitmask;
+ DECLARE_BITMAP(reserved_filters_bitmask, ASP_RX_NET_FILTER_MAX);
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->irq = platform_get_irq(pdev, 0);
+ if (priv->irq <= 0) {
+ dev_err(dev, "invalid interrupt\n");
+ return -EINVAL;
+ }
+
+ priv->clk = devm_clk_get(dev, "sw_asp");
+ if (IS_ERR(priv->clk)) {
+ if (PTR_ERR(priv->clk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_warn(dev, "failed to request clock\n");
+ priv->clk = NULL;
+ }
+
+ /* Base from parent node */
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(priv->base)) {
+ dev_err(dev, "failed to iomap\n");
+ return PTR_ERR(priv->base);
+ }
+
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
+ if (ret)
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(&pdev->dev, "unable to set DMA mask: %d\n", ret);
+ return ret;
+ }
+
+ dev_set_drvdata(&pdev->dev, priv);
+ priv->pdev = pdev;
+ spin_lock_init(&priv->mda_lock);
+ spin_lock_init(&priv->clk_lock);
+ mutex_init(&priv->net_lock);
+
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ /* Enable all clocks to ensure successful probing */
+ bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+ /* Switch to the main clock */
+ bcmasp_core_clock_select(priv, false);
+
+ _intr2_mask_set(priv, 0xffffffff);
+ intr2_core_wl(priv, 0xffffffff, ASP_INTR2_CLEAR);
+
+ ret = devm_request_irq(&pdev->dev, priv->irq, bcmasp_isr, 0,
+ pdev->name, priv);
+ if (ret) {
+ dev_err(dev, "failed to request ASP interrupt: %d\n", ret);
+ return ret;
+ }
+
+ /* Register mdio child nodes */
+ of_platform_populate(dev->of_node, bcmasp_mdio_of_match, NULL,
+ dev);
+
+ ret = of_property_read_u32(dev->of_node,
+ "brcm,reserved-net-filters-mask",
+ &u32_reserved_filters_bitmask);
+ if (ret)
+ u32_reserved_filters_bitmask = 0;
+
+ priv->net_filters_count_max = ASP_RX_NET_FILTER_MAX;
+ bitmap_zero(reserved_filters_bitmask, priv->net_filters_count_max);
+ bitmap_from_arr32(reserved_filters_bitmask,
+ &u32_reserved_filters_bitmask,
+ priv->net_filters_count_max);
+
+ /* Discover bitmask of reserved filters */
+ for_each_set_bit(i, reserved_filters_bitmask, ASP_RX_NET_FILTER_MAX) {
+ priv->net_filters[i].reserved = true;
+ priv->net_filters_count_max--;
+ }
+
+ /*
+ * ASP specific initialization, Needs to be done irregardless of
+ * of how many interfaces come up.
+ */
+ bcmasp_core_init(priv);
+ bcmasp_core_init_filters(priv);
+
+ ports_node = of_find_node_by_name(dev->of_node, "ethernet-ports");
+ if (!ports_node) {
+ dev_warn(dev, "No ports found\n");
+ return 0;
+ }
+
+ priv->intf_count = of_get_available_child_count(ports_node);
+
+ priv->intfs = devm_kcalloc(dev, priv->intf_count,
+ sizeof(struct bcmasp_intf *),
+ GFP_KERNEL);
+ if (!priv->intfs)
+ return -ENOMEM;
+
+ /* Probe each interface (Initalization should continue even if
+ * interfaces are unable to come up)
+ */
+ i = 0;
+ for_each_available_child_of_node(ports_node, intf_node) {
+ wol_irq = platform_get_irq_optional(pdev, i + 1);
+ priv->intfs[i++] = bcmasp_interface_create(priv, intf_node,
+ wol_irq);
+ }
+
+ /* Drop the clock reference count now and let ndo_open()/ndo_close()
+ * manage it for us from now on.
+ */
+ bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+ clk_disable_unprepare(priv->clk);
+
+ /* Now do the registration of the network ports which will take care of
+ * managing the clock properly.
+ */
+ for (i = 0; i < priv->intf_count; i++) {
+ intf = priv->intfs[i];
+ if (!intf)
+ continue;
+
+ ret = register_netdev(intf->ndev);
+ if (ret) {
+ netdev_err(intf->ndev,
+ "failed to register net_device: %d\n", ret);
+ bcmasp_interface_destroy(intf, false);
+ continue;
+ }
+ count++;
+ }
+
+ dev_info(dev, "Initialized %d port(s)\n", count);
+
+ return 0;
+}
+
+static int bcmasp_remove(struct platform_device *pdev)
+{
+ struct bcmasp_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct bcmasp_intf *intf;
+ int i;
+
+ for (i = 0; i < priv->intf_count; i++) {
+ intf = priv->intfs[i];
+ if (!intf)
+ continue;
+
+ bcmasp_interface_destroy(intf, true);
+ }
+
+ return 0;
+}
+
+static void bcmasp_shutdown(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = bcmasp_remove(pdev);
+ if (ret)
+ dev_err(&pdev->dev, "failed to remove: %d\n", ret);
+}
+
+static int __maybe_unused bcmasp_suspend(struct device *d)
+{
+ struct bcmasp_priv *priv = dev_get_drvdata(d);
+ struct bcmasp_intf *intf;
+ unsigned int i;
+ bool wol_keep_rx_en = 0;
+ int ret = 0;
+
+ for (i = 0; i < priv->intf_count; i++) {
+ intf = priv->intfs[i];
+ if (!intf)
+ continue;
+
+ ret = bcmasp_interface_suspend(intf, &wol_keep_rx_en);
+ if (ret)
+ break;
+ }
+
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ /* Whether Wake-on-LAN is enabled or not, we can always disable
+ * the shared TX clock
+ */
+ bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE);
+
+ /* Switch to slow clock if we do not need rx */
+ if (!wol_keep_rx_en)
+ bcmasp_core_clock_select(priv, true);
+
+ clk_disable_unprepare(priv->clk);
+
+ return ret;
+}
+
+static int __maybe_unused bcmasp_resume(struct device *d)
+{
+ struct bcmasp_priv *priv = dev_get_drvdata(d);
+ struct bcmasp_intf *intf;
+ unsigned int i;
+ int ret = 0;
+
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ /* Switch to the main clock domain */
+ bcmasp_core_clock_select(priv, false);
+
+ /* Re-enable all clocks for re-initialization */
+ bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+ bcmasp_core_init(priv);
+ bcmasp_core_init_filters(priv);
+
+ /* And disable them to let the network devices take care of them */
+ bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+ clk_disable_unprepare(priv->clk);
+
+ for (i = 0; i < priv->intf_count; i++) {
+ intf = priv->intfs[i];
+ if (!intf)
+ continue;
+
+ ret = bcmasp_interface_resume(intf);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(bcmasp_pm_ops,
+ bcmasp_suspend, bcmasp_resume);
+
+static struct platform_driver bcmasp_driver = {
+ .probe = bcmasp_probe,
+ .remove = bcmasp_remove,
+ .shutdown = bcmasp_shutdown,
+ .driver = {
+ .name = "brcm,asp-v2",
+ .of_match_table = bcmasp_of_match,
+ .pm = &bcmasp_pm_ops,
+ },
+};
+module_platform_driver(bcmasp_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("Broadcom ASP 2.0 Ethernet controller driver");
+MODULE_ALIAS("platform:brcm,asp-v2");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.h b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
new file mode 100644
index 0000000..e08b85e
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
@@ -0,0 +1,565 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __BCMASP_H
+#define __BCMASP_H
+
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/io-64-nonatomic-hi-lo.h>
+#include <uapi/linux/ethtool.h>
+
+#define ASP_INTR2_OFFSET 0x1000
+#define ASP_INTR2_STATUS 0x0
+#define ASP_INTR2_SET 0x4
+#define ASP_INTR2_CLEAR 0x8
+#define ASP_INTR2_MASK_STATUS 0xc
+#define ASP_INTR2_MASK_SET 0x10
+#define ASP_INTR2_MASK_CLEAR 0x14
+
+#define ASP_INTR2_NUM_INTR 6
+#define ASP_INTR2_RX_ECH(intr) BIT(intr)
+#define ASP_INTR2_TX_DESC(intr) BIT((intr) + 14)
+#define ASP_INTR2_UMC0_WAKE BIT(22)
+#define ASP_INTR2_UMC1_WAKE BIT(28)
+
+
+#define ASP_TX_ANALYTICS_OFFSET 0x4c000
+#define ASP_TX_ANALYTICS_CTRL 0x0
+
+#define ASP_RX_ANALYTICS_OFFSET 0x98000
+#define ASP_RX_ANALYTICS_CTRL 0x0
+
+#define ASP_RX_CTRL_OFFSET 0x9f000
+#define ASP_RX_CTRL_UMAC_0_FRAME_COUNT 0x8
+#define ASP_RX_CTRL_UMAC_1_FRAME_COUNT 0xc
+#define ASP_RX_CTRL_FB_0_FRAME_COUNT 0x14
+#define ASP_RX_CTRL_FB_1_FRAME_COUNT 0x18
+#define ASP_RX_CTRL_FB_8_FRAME_COUNT 0x1c
+#define ASP_RX_CTRL_FB_OUT_FRAME_COUNT 0x20
+#define ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT 0x24
+#define ASP_RX_CTRL_FLUSH 0x28
+#define ASP_CTRL_UMAC0_FLUSH_MASK 0x1001
+#define ASP_CTRL_UMAC1_FLUSH_MASK 0x2002
+#define ASP_RX_CTRL_FB_RX_FIFO_DEPTH 0x30
+#define ASP_RX_CTRL_S2F 0x44
+#define ASP_RX_CTRL_S2F_OPUT_EN BIT(0)
+#define ASP_RX_CTRL_S2F_VLN_EN BIT(1)
+#define ASP_RX_CTRL_S2F_SNP_EN BIT(2)
+#define ASP_RX_CTRL_S2F_BCM_TAG_EN BIT(3)
+#define ASP_RX_CTRL_S2F_CHID_SHIFT 8
+#define ASP_RX_CTRL_S2F_DEFAULT_EN \
+ (ASP_RX_CTRL_S2F_OPUT_EN | \
+ ASP_RX_CTRL_S2F_VLN_EN | \
+ ASP_RX_CTRL_S2F_SNP_EN)
+
+#define ASP_RX_FILTER_OFFSET 0x80000
+#define ASP_RX_FILTER_BLK_CTRL 0x0
+#define ASP_RX_FILTER_OPUT_EN BIT(0)
+#define ASP_RX_FILTER_MDA_EN BIT(1)
+#define ASP_RX_FILTER_LNR_MD BIT(2)
+#define ASP_RX_FILTER_GEN_WK_EN BIT(3)
+#define ASP_RX_FILTER_GEN_WK_CLR BIT(4)
+#define ASP_RX_FILTER_NT_FLT_EN BIT(5)
+#define ASP_RX_FILTER_MDA_CFG(sel) (((sel) * 0x14) + 0x100)
+#define ASP_RX_FILTER_MDA_CFG_EN_SHIFT 8
+#define ASP_RX_FILTER_MDA_CFG_UMC_SEL(sel) ((sel) > 1 ? BIT(17) : BIT((sel) + 9))
+#define ASP_RX_FILTER_MDA_PAT_H(sel) (((sel) * 0x14) + 0x104)
+#define ASP_RX_FILTER_MDA_PAT_L(sel) (((sel) * 0x14) + 0x108)
+#define ASP_RX_FILTER_MDA_MSK_H(sel) (((sel) * 0x14) + 0x10c)
+#define ASP_RX_FILTER_MDA_MSK_L(sel) (((sel) * 0x14) + 0x110)
+#define ASP_RX_FILTER_MDA_CFG(sel) (((sel) * 0x14) + 0x100)
+#define ASP_RX_FILTER_MDA_PAT_H(sel) (((sel) * 0x14) + 0x104)
+#define ASP_RX_FILTER_MDA_PAT_L(sel) (((sel) * 0x14) + 0x108)
+#define ASP_RX_FILTER_MDA_MSK_H(sel) (((sel) * 0x14) + 0x10c)
+#define ASP_RX_FILTER_MDA_MSK_L(sel) (((sel) * 0x14) + 0x110)
+#define ASP_RX_FILTER_NET_CFG(sel) (((sel) * 0xa04) + 0x400)
+#define ASP_RX_FILTER_NET_CFG_CH(sel) ((sel) << 0)
+#define ASP_RX_FILTER_NET_CFG_EN BIT(9)
+#define ASP_RX_FILTER_NET_CFG_L2_EN BIT(10)
+#define ASP_RX_FILTER_NET_CFG_L3_EN BIT(11)
+#define ASP_RX_FILTER_NET_CFG_L4_EN BIT(12)
+#define ASP_RX_FILTER_NET_CFG_L3_FRM(sel) ((sel) << 13)
+#define ASP_RX_FILTER_NET_CFG_L4_FRM(sel) ((sel) << 15)
+#define ASP_RX_FILTER_NET_CFG_UMC(sel) BIT((sel) + 19)
+#define ASP_RX_FILTER_NET_CFG_DMA_EN BIT(27)
+
+enum asp_rx_net_filter_block {
+ ASP_RX_FILTER_L2 = 0,
+ ASP_RX_FILTER_L3_0,
+ ASP_RX_FILTER_L3_1,
+ ASP_RX_FILTER_L4,
+ ASP_RX_FILTER_NET_BLOCK_MAX
+};
+
+#define ASP_RX_FILTER_NET_OFFSET_MAX 32
+#define ASP_RX_FILTER_NET_PAT(sel, block, off) \
+ (((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x600)
+#define ASP_RX_FILTER_NET_MASK(sel, block, off) \
+ (((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x700)
+
+#define ASP_RX_FILTER_NET_OFFSET(sel) (((sel) * 0xa04) + 0xe00)
+#define ASP_RX_FILTER_NET_OFFSET_L2(val) ((val) << 0)
+#define ASP_RX_FILTER_NET_OFFSET_L3_0(val) ((val) << 8)
+#define ASP_RX_FILTER_NET_OFFSET_L3_1(val) ((val) << 16)
+#define ASP_RX_FILTER_NET_OFFSET_L4(val) ((val) << 24)
+
+#define NUM_MDA_FILTERS 32
+#define NUM_NET_FILTERS 32
+
+#define ASP_EDPKT_OFFSET 0x9c000
+#define ASP_EDPKT_ENABLE 0x4
+#define ASP_EDPKT_ENABLE_EN BIT(0)
+#define ASP_EDPKT_HDR_CFG 0xc
+#define ASP_EDPKT_HDR_SZ_SHIFT 2
+#define ASP_EDPKT_HDR_SZ_32 0
+#define ASP_EDPKT_HDR_SZ_64 1
+#define ASP_EDPKT_HDR_SZ_96 2
+#define ASP_EDPKT_HDR_SZ_128 3
+#define ASP_EDPKT_BURST_BUF_PSCAL_TOUT 0x10
+#define ASP_EDPKT_BURST_BUF_WRITE_TOUT 0x14
+#define ASP_EDPKT_BURST_BUF_READ_TOUT 0x18
+#define ASP_EDPKT_RX_TS_COUNTER 0x38
+#define ASP_EDPKT_ENDI 0x48
+#define ASP_EDPKT_ENDI_DESC_SHIFT 8
+#define ASP_EDPKT_ENDI_NO_BT_SWP 0
+#define ASP_EDPKT_ENDI_BT_SWP_WD 1
+#define ASP_EDPKT_RX_PKT_CNT 0x138
+#define ASP_EDPKT_HDR_EXTR_CNT 0x13c
+#define ASP_EDPKT_HDR_OUT_CNT 0x140
+
+#define ASP_CTRL 0x101000
+#define ASP_CTRL_ASP_SW_INIT 0x04
+#define ASP_CTRL_ASP_SW_INIT_ACPUSS_CORE BIT(0)
+#define ASP_CTRL_ASP_SW_INIT_ASP_TX BIT(1)
+#define ASP_CTRL_ASP_SW_INIT_AS_RX BIT(2)
+#define ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC0 BIT(3)
+#define ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC1 BIT(4)
+#define ASP_CTRL_ASP_SW_INIT_ASP_XMEMIF BIT(5)
+#define ASP_CTRL_CLOCK_CTRL 0x04
+#define ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE BIT(0)
+#define ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE BIT(1)
+#define ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT 2
+#define ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK (0x3 << ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT)
+#define ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(x) BIT(ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT + (x))
+#define ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE GENMASK(3, 0)
+#define ASP_CTRL_CORE_CLOCK_SELECT 0x08
+#define ASP_CTRL_CORE_CLOCK_SELECT_MAIN BIT(0)
+
+struct bcmasp_tx_cb {
+ struct sk_buff *skb;
+ unsigned int bytes_sent;
+ bool last;
+
+ DEFINE_DMA_UNMAP_ADDR(dma_addr);
+ DEFINE_DMA_UNMAP_LEN(dma_len);
+};
+
+struct bcmasp_res {
+ /* Per interface resources */
+ /* Port */
+ void __iomem *umac;
+ void __iomem *umac2fb;
+ void __iomem *rgmii;
+
+ /* TX slowpath/configuration */
+ void __iomem *tx_spb_ctrl;
+ void __iomem *tx_spb_top;
+ void __iomem *tx_epkt_core;
+ void __iomem *tx_pause_ctrl;
+};
+
+#define DESC_ADDR(x) ((x) & GENMASK_ULL(39, 0))
+#define DESC_FLAGS(x) ((x) & GENMASK_ULL(63, 40))
+
+struct bcmasp_desc {
+ u64 buf;
+ #define DESC_CHKSUM BIT_ULL(40)
+ #define DESC_CRC_ERR BIT_ULL(41)
+ #define DESC_RX_SYM_ERR BIT_ULL(42)
+ #define DESC_NO_OCT_ALN BIT_ULL(43)
+ #define DESC_PKT_TRUC BIT_ULL(44)
+ /* 39:0 (TX/RX) bits 0-39 of buf addr
+ * 40 (RX) checksum
+ * 41 (RX) crc_error
+ * 42 (RX) rx_symbol_error
+ * 43 (RX) non_octet_aligned
+ * 44 (RX) pkt_truncated
+ * 45 Reserved
+ * 56:46 (RX) mac_filter_id
+ * 60:57 (RX) rx_port_num (0-unicmac0, 1-unimac1, 8-wifi)
+ * 61 Reserved
+ * 63:62 (TX) forward CRC, overwrite CRC
+ */
+ u32 size;
+ u32 flags;
+ #define DESC_INT_EN BIT(0)
+ #define DESC_SOF BIT(1)
+ #define DESC_EOF BIT(2)
+ #define DESC_EPKT_CMD BIT(3)
+ #define DESC_SCRAM_ST BIT(8)
+ #define DESC_SCRAM_END BIT(9)
+ #define DESC_PCPP BIT(10)
+ #define DESC_PPPP BIT(11)
+ /* 0 (TX) tx_int_en
+ * 1 (TX/RX) SOF
+ * 2 (TX/RX) EOF
+ * 3 (TX) epkt_command
+ * 6:4 (TX) PA
+ * 7 (TX) pause at desc end
+ * 8 (TX) scram_start
+ * 9 (TX) scram_end
+ * 10 (TX) PCPP
+ * 11 (TX) PPPP
+ * 14:12 Reserved
+ * 15 (TX) pid ch Valid
+ * 19:16 (TX) data_pkt_type
+ * 32:20 (TX) pid_channel (RX) nw_filter_id
+ */
+};
+
+/* Rx/Tx common counter group */
+struct bcmasp_pkt_counters {
+ u32 cnt_64; /* RO Received/Transmited 64 bytes packet */
+ u32 cnt_127; /* RO Rx/Tx 127 bytes packet */
+ u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */
+ u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */
+ u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */
+ u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */
+ u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */
+ u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/
+ u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/
+ u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/
+};
+
+/* RSV, Receive Status Vector */
+struct bcmasp_rx_counters {
+ struct bcmasp_pkt_counters pkt_cnt;
+ u32 pkt; /* RO (0x428) Received pkt count*/
+ u32 bytes; /* RO Received byte count */
+ u32 mca; /* RO # of Received multicast pkt */
+ u32 bca; /* RO # of Receive broadcast pkt */
+ u32 fcs; /* RO # of Received FCS error */
+ u32 cf; /* RO # of Received control frame pkt*/
+ u32 pf; /* RO # of Received pause frame pkt */
+ u32 uo; /* RO # of unknown op code pkt */
+ u32 aln; /* RO # of alignment error count */
+ u32 flr; /* RO # of frame length out of range count */
+ u32 cde; /* RO # of code error pkt */
+ u32 fcr; /* RO # of carrier sense error pkt */
+ u32 ovr; /* RO # of oversize pkt*/
+ u32 jbr; /* RO # of jabber count */
+ u32 mtue; /* RO # of MTU error pkt*/
+ u32 pok; /* RO # of Received good pkt */
+ u32 uc; /* RO # of unicast pkt */
+ u32 ppp; /* RO # of PPP pkt */
+ u32 rcrc; /* RO (0x470),# of CRC match pkt */
+};
+
+/* TSV, Transmit Status Vector */
+struct bcmasp_tx_counters {
+ struct bcmasp_pkt_counters pkt_cnt;
+ u32 pkts; /* RO (0x4a8) Transmited pkt */
+ u32 mca; /* RO # of xmited multicast pkt */
+ u32 bca; /* RO # of xmited broadcast pkt */
+ u32 pf; /* RO # of xmited pause frame count */
+ u32 cf; /* RO # of xmited control frame count */
+ u32 fcs; /* RO # of xmited FCS error count */
+ u32 ovr; /* RO # of xmited oversize pkt */
+ u32 drf; /* RO # of xmited deferral pkt */
+ u32 edf; /* RO # of xmited Excessive deferral pkt*/
+ u32 scl; /* RO # of xmited single collision pkt */
+ u32 mcl; /* RO # of xmited multiple collision pkt*/
+ u32 lcl; /* RO # of xmited late collision pkt */
+ u32 ecl; /* RO # of xmited excessive collision pkt*/
+ u32 frg; /* RO # of xmited fragments pkt*/
+ u32 ncl; /* RO # of xmited total collision count */
+ u32 jbr; /* RO # of xmited jabber count*/
+ u32 bytes; /* RO # of xmited byte count */
+ u32 pok; /* RO # of xmited good pkt */
+ u32 uc; /* RO (0x0x4f0)# of xmited unitcast pkt */
+};
+
+struct bcmasp_mib_counters {
+ struct bcmasp_rx_counters rx;
+ struct bcmasp_tx_counters tx;
+ u32 rx_runt_cnt;
+ u32 rx_runt_fcs;
+ u32 rx_runt_fcs_align;
+ u32 rx_runt_bytes;
+ u32 edpkt_ts;
+ u32 edpkt_rx_pkt_cnt;
+ u32 edpkt_hdr_ext_cnt;
+ u32 edpkt_hdr_out_cnt;
+ u32 umac_frm_cnt;
+ u32 fb_frm_cnt;
+ u32 fb_out_frm_cnt;
+ u32 fb_filt_out_frm_cnt;
+ u32 fb_rx_fifo_depth;
+ u32 alloc_rx_buff_failed;
+ u32 alloc_rx_skb_failed;
+ u32 rx_dma_failed;
+ u32 tx_dma_failed;
+ u32 mc_filters_full_cnt;
+ u32 uc_filters_full_cnt;
+ u32 filters_combine_cnt;
+ u32 promisc_filters_cnt;
+ u32 tx_realloc_offload_failed;
+ u32 tx_realloc_offload;
+};
+
+struct bcmasp_intf {
+ struct net_device *ndev;
+ struct bcmasp_priv *parent;
+
+ /* ASP Ch */
+ int channel;
+ int port;
+
+ struct napi_struct tx_napi;
+ /* TX ring, starts on a new cacheline boundary */
+ void __iomem *tx_spb_dma;
+ int tx_spb_index;
+ int tx_spb_clean_index;
+ struct bcmasp_desc *tx_spb_cpu;
+ dma_addr_t tx_spb_dma_addr;
+ dma_addr_t tx_spb_dma_valid;
+ dma_addr_t tx_spb_dma_read;
+ struct bcmasp_tx_cb *tx_cbs;
+ spinlock_t tx_lock;
+
+ /* RX ring, starts on a new cacheline boundary */
+ void __iomem *rx_edpkt_cfg;
+ void __iomem *rx_edpkt_dma;
+ int rx_edpkt_index;
+ int rx_buf_order;
+ struct bcmasp_desc *rx_edpkt_cpu;
+ dma_addr_t rx_edpkt_dma_addr;
+ dma_addr_t rx_edpkt_dma_read;
+
+ /* RX buffer prefetcher ring*/
+ void *rx_ring_cpu;
+ dma_addr_t rx_ring_dma;
+ dma_addr_t rx_ring_dma_valid;
+ struct napi_struct rx_napi;
+
+ struct bcmasp_res res;
+ unsigned int crc_fwd;
+
+ /* PHY device */
+ struct device_node *phy_dn;
+ struct device_node *ndev_dn;
+ phy_interface_t phy_interface;
+ bool internal_phy;
+ int old_pause;
+ int old_link;
+ int old_duplex;
+
+ u32 msg_enable;
+ /* MIB counters */
+ struct bcmasp_mib_counters mib;
+
+ /* Wake-on-LAN */
+ u32 wolopts;
+ u8 sopass[SOPASS_MAX];
+ int wol_irq;
+ unsigned int wol_irq_disabled:1;
+ unsigned int wol_keep_rx_en:1;
+
+ struct ethtool_eee eee;
+};
+
+#define __BCMASP_IO_MACRO(name, m) \
+static inline u32 name##_rl(struct bcmasp_intf *intf, u32 off) \
+{ \
+ u32 reg = readl_relaxed(intf->m + off); \
+ return reg; \
+} \
+static inline void name##_wl(struct bcmasp_intf *intf, u32 val, u32 off)\
+{ \
+ writel_relaxed(val, intf->m + off); \
+}
+
+#define BCMASP_IO_MACRO(name) __BCMASP_IO_MACRO(name, res.name)
+#define BCMASP_FP_IO_MACRO(name) __BCMASP_IO_MACRO(name, name)
+
+BCMASP_IO_MACRO(umac);
+BCMASP_IO_MACRO(umac2fb);
+BCMASP_IO_MACRO(rgmii);
+BCMASP_FP_IO_MACRO(tx_spb_dma);
+BCMASP_IO_MACRO(tx_spb_ctrl);
+BCMASP_IO_MACRO(tx_spb_top);
+BCMASP_IO_MACRO(tx_epkt_core);
+BCMASP_IO_MACRO(tx_pause_ctrl);
+BCMASP_FP_IO_MACRO(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO(rx_edpkt_cfg);
+
+#define __BCMASP_FP_IO_MACRO_Q(name, m) \
+static inline u64 name##_rq(struct bcmasp_intf *intf, u32 off) \
+{ \
+ u64 reg = readq_relaxed(intf->m + off); \
+ return reg; \
+} \
+static inline void name##_wq(struct bcmasp_intf *intf, u64 val, u32 off)\
+{ \
+ writeq_relaxed(val, intf->m + off); \
+}
+
+#define BCMASP_FP_IO_MACRO_Q(name) __BCMASP_FP_IO_MACRO_Q(name, name)
+
+BCMASP_FP_IO_MACRO_Q(tx_spb_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_cfg);
+
+#define ASP_RX_NET_FILTER_MAX 32
+#define ASP_MAX_FILTER_SIZE 128
+struct bcmasp_net_filter {
+ struct ethtool_rx_flow_spec fs;
+
+ bool reserved;
+ bool claimed;
+ bool wake_filter;
+
+ int port;
+ unsigned int hw_index;
+};
+
+#define ASP_RX_FILTER_MAX 32
+struct bcmasp_mda_filter {
+ /* Current owner of this filter */
+ int port;
+ bool en;
+ u8 addr[ETH_ALEN];
+ u8 mask[ETH_ALEN];
+};
+
+struct bcmasp_priv {
+ struct platform_device *pdev;
+ struct clk *clk;
+
+ int irq;
+ u32 irq_mask;
+
+ void __iomem *base;
+
+ unsigned int intf_count;
+ struct bcmasp_intf **intfs;
+
+ struct bcmasp_mda_filter mda_filters[ASP_RX_FILTER_MAX];
+ unsigned int filters_count;
+ /* MAC destination address filters lock */
+ spinlock_t mda_lock;
+
+ /* Protects accesses to ASP_CTRL_CLOCK_CTRL */
+ spinlock_t clk_lock;
+
+ struct bcmasp_net_filter net_filters[ASP_RX_NET_FILTER_MAX];
+ /* Max amount of filters minus reserved filters */
+ unsigned int net_filters_count_max;
+ struct mutex net_lock;
+};
+
+#define PKT_OFFLOAD_NOP (0 << 28)
+#define PKT_OFFLOAD_HDR_OP (1 << 28)
+#define PKT_OFFLOAD_HDR_WRBACK BIT(19)
+#define PKT_OFFLOAD_HDR_COUNT(x) ((x) << 16)
+#define PKT_OFFLOAD_HDR_SIZE_1(x) ((x) << 4)
+#define PKT_OFFLOAD_HDR_SIZE_2(x) (x)
+#define PKT_OFFLOAD_HDR2_SIZE_2(x) ((x) << 24)
+#define PKT_OFFLOAD_HDR2_SIZE_3(x) ((x) << 12)
+#define PKT_OFFLOAD_HDR2_SIZE_4(x) (x)
+#define PKT_OFFLOAD_EPKT_OP (2 << 28)
+#define PKT_OFFLOAD_EPKT_WRBACK BIT(23)
+#define PKT_OFFLOAD_EPKT_IP(x) ((x) << 21)
+#define PKT_OFFLOAD_EPKT_TP(x) ((x) << 19)
+#define PKT_OFFLOAD_EPKT_LEN(x) ((x) << 16)
+#define PKT_OFFLOAD_EPKT_CSUM_L3 BIT(15)
+#define PKT_OFFLOAD_EPKT_CSUM_L2 BIT(14)
+#define PKT_OFFLOAD_EPKT_ID(x) ((x) << 12)
+#define PKT_OFFLOAD_EPKT_SEQ(x) ((x) << 10)
+#define PKT_OFFLOAD_EPKT_TS(x) ((x) << 8)
+#define PKT_OFFLOAD_EPKT_BLOC(x) (x)
+#define PKT_OFFLOAD_END_OP (7 << 28)
+
+struct bcmasp_pkt_offload {
+ u32 nop;
+ u32 header;
+ u32 header2;
+ u32 epkt;
+ u32 end;
+};
+
+#define BCMASP_CORE_IO_MACRO(name, offset) \
+static inline u32 name##_core_rl(struct bcmasp_priv *priv, \
+ u32 off) \
+{ \
+ u32 reg = readl_relaxed(priv->base + (offset) + off); \
+ return reg; \
+} \
+static inline void name##_core_wl(struct bcmasp_priv *priv, \
+ u32 val, u32 off) \
+{ \
+ writel_relaxed(val, priv->base + (offset) + off); \
+}
+
+BCMASP_CORE_IO_MACRO(intr2, ASP_INTR2_OFFSET);
+BCMASP_CORE_IO_MACRO(tx_analytics, ASP_TX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_analytics, ASP_RX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_ctrl, ASP_RX_CTRL_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_filter, ASP_RX_FILTER_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_edpkt, ASP_EDPKT_OFFSET);
+BCMASP_CORE_IO_MACRO(ctrl, ASP_CTRL);
+
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+ struct device_node *ndev_dn,
+ int wol_irq);
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf, bool unregister);
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf);
+
+extern const struct ethtool_ops bcmasp_ethtool_ops;
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf, bool *wol_keep_rx_en);
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf);
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, unsigned char *addr, bool en);
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+ unsigned char *mask);
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf);
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en);
+
+struct bcmasp_net_filter *bcmasp_netfilt_get_init(struct bcmasp_intf *intf,
+ int loc, bool wake_filter,
+ bool init);
+
+int bcmasp_netfilt_check_dup(struct bcmasp_intf *intf,
+ struct ethtool_rx_flow_spec *fs);
+
+void bcmasp_netfilt_release(struct bcmasp_intf *intf,
+ struct bcmasp_net_filter *nfilt);
+
+int bcmasp_netfilt_get_active(struct bcmasp_intf *intf);
+
+void bcmasp_netfilt_get_all_active(struct bcmasp_intf *intf, u32 *rule_locs,
+ u32 *rule_cnt);
+
+int bcmasp_netfilt_get_max(struct bcmasp_intf *intf);
+
+void bcmasp_netfilt_suspend(struct bcmasp_intf *intf);
+
+void bcmasp_eee_enable_set(struct bcmasp_intf *intf, bool enable);
+
+#endif
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
new file mode 100644
index 0000000..a63524c
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
@@ -0,0 +1,628 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt) "bcmasp_ethtool: " fmt
+
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+/* private flags */
+static const char bcmasp_private_flags[][ETH_GSTRING_LEN] = {
+ "suspend-keep-rx",
+};
+
+#define BCMASP_PRIV_FLAGS_COUNT ARRAY_SIZE(bcmasp_private_flags)
+#define BCMASP_WOL_KEEP_RX_EN BIT(0)
+
+/* standard ethtool support functions. */
+enum bcmasp_stat_type {
+ BCMASP_STAT_NETDEV = -1,
+ BCMASP_STAT_MIB_RX,
+ BCMASP_STAT_MIB_TX,
+ BCMASP_STAT_RUNT,
+ BCMASP_STAT_RX_EDPKT,
+ BCMASP_STAT_RX_CTRL,
+ BCMASP_STAT_SOFT,
+};
+
+struct bcmasp_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int stat_sizeof;
+ int stat_offset;
+ enum bcmasp_stat_type type;
+ /* register offset from base for misc counters */
+ u16 reg_offset;
+};
+
+#define STAT_NETDEV(m) { \
+ .stat_string = __stringify(m), \
+ .stat_sizeof = sizeof(((struct net_device_stats *)0)->m), \
+ .stat_offset = offsetof(struct net_device_stats, m), \
+ .type = BCMASP_STAT_NETDEV, \
+}
+
+#define STAT_BCMASP_MIB(str, m, _type) { \
+ .stat_string = str, \
+ .stat_sizeof = sizeof(((struct bcmasp_intf *)0)->m), \
+ .stat_offset = offsetof(struct bcmasp_intf, m), \
+ .type = _type, \
+}
+
+#define STAT_BCMASP_OFFSET(str, m, _type, offset) { \
+ .stat_string = str, \
+ .stat_sizeof = sizeof(((struct bcmasp_intf *)0)->m), \
+ .stat_offset = offsetof(struct bcmasp_intf, m), \
+ .type = _type, \
+ .reg_offset = offset, \
+}
+
+#define STAT_BCMASP_MIB_RX(str, m) \
+ STAT_BCMASP_MIB(str, m, BCMASP_STAT_MIB_RX)
+#define STAT_BCMASP_MIB_TX(str, m) \
+ STAT_BCMASP_MIB(str, m, BCMASP_STAT_MIB_TX)
+#define STAT_BCMASP_RUNT(str, m) \
+ STAT_BCMASP_MIB(str, m, BCMASP_STAT_RUNT)
+#define STAT_BCMASP_RX_EDPKT(str, m, offset) \
+ STAT_BCMASP_OFFSET(str, m, BCMASP_STAT_RX_EDPKT, offset)
+#define STAT_BCMASP_RX_CTRL(str, m, offset) \
+ STAT_BCMASP_OFFSET(str, m, BCMASP_STAT_RX_CTRL, offset)
+#define STAT_BCMASP_SOFT_MIB(m) \
+ STAT_BCMASP_MIB(__stringify(m), mib.m, BCMASP_STAT_SOFT)
+
+/* There is a 0x10 gap in hardware between the end of RX and beginning of TX
+ * stats and then between the end of TX stats and the beginning of the RX RUNT.
+ * The software structure already accounts for sizeof(u32) between members so
+ * need to add 0xc to offset correctly into the hardware register.
+ */
+#define BCMASP_STAT_OFFSET 0xc
+
+/* Hardware counters must be kept in sync because the order/offset
+ * is important here (order in structure declaration = order in hardware)
+ */
+static const struct bcmasp_stats bcmasp_gstrings_stats[] = {
+ /* general stats */
+ STAT_NETDEV(rx_packets),
+ STAT_NETDEV(tx_packets),
+ STAT_NETDEV(rx_bytes),
+ STAT_NETDEV(tx_bytes),
+ STAT_NETDEV(rx_errors),
+ STAT_NETDEV(tx_errors),
+ STAT_NETDEV(rx_dropped),
+ STAT_NETDEV(tx_dropped),
+ STAT_NETDEV(multicast),
+ /* UniMAC RSV counters */
+ STAT_BCMASP_MIB_RX("rx_64_octets", mib.rx.pkt_cnt.cnt_64),
+ STAT_BCMASP_MIB_RX("rx_65_127_oct", mib.rx.pkt_cnt.cnt_127),
+ STAT_BCMASP_MIB_RX("rx_128_255_oct", mib.rx.pkt_cnt.cnt_255),
+ STAT_BCMASP_MIB_RX("rx_256_511_oct", mib.rx.pkt_cnt.cnt_511),
+ STAT_BCMASP_MIB_RX("rx_512_1023_oct", mib.rx.pkt_cnt.cnt_1023),
+ STAT_BCMASP_MIB_RX("rx_1024_1518_oct", mib.rx.pkt_cnt.cnt_1518),
+ STAT_BCMASP_MIB_RX("rx_vlan_1519_1522_oct", mib.rx.pkt_cnt.cnt_mgv),
+ STAT_BCMASP_MIB_RX("rx_1522_2047_oct", mib.rx.pkt_cnt.cnt_2047),
+ STAT_BCMASP_MIB_RX("rx_2048_4095_oct", mib.rx.pkt_cnt.cnt_4095),
+ STAT_BCMASP_MIB_RX("rx_4096_9216_oct", mib.rx.pkt_cnt.cnt_9216),
+ STAT_BCMASP_MIB_RX("rx_pkts", mib.rx.pkt),
+ STAT_BCMASP_MIB_RX("rx_bytes", mib.rx.bytes),
+ STAT_BCMASP_MIB_RX("rx_multicast", mib.rx.mca),
+ STAT_BCMASP_MIB_RX("rx_broadcast", mib.rx.bca),
+ STAT_BCMASP_MIB_RX("rx_fcs", mib.rx.fcs),
+ STAT_BCMASP_MIB_RX("rx_control", mib.rx.cf),
+ STAT_BCMASP_MIB_RX("rx_pause", mib.rx.pf),
+ STAT_BCMASP_MIB_RX("rx_unknown", mib.rx.uo),
+ STAT_BCMASP_MIB_RX("rx_align", mib.rx.aln),
+ STAT_BCMASP_MIB_RX("rx_outrange", mib.rx.flr),
+ STAT_BCMASP_MIB_RX("rx_code", mib.rx.cde),
+ STAT_BCMASP_MIB_RX("rx_carrier", mib.rx.fcr),
+ STAT_BCMASP_MIB_RX("rx_oversize", mib.rx.ovr),
+ STAT_BCMASP_MIB_RX("rx_jabber", mib.rx.jbr),
+ STAT_BCMASP_MIB_RX("rx_mtu_err", mib.rx.mtue),
+ STAT_BCMASP_MIB_RX("rx_good_pkts", mib.rx.pok),
+ STAT_BCMASP_MIB_RX("rx_unicast", mib.rx.uc),
+ STAT_BCMASP_MIB_RX("rx_ppp", mib.rx.ppp),
+ STAT_BCMASP_MIB_RX("rx_crc", mib.rx.rcrc),
+ /* UniMAC TSV counters */
+ STAT_BCMASP_MIB_TX("tx_64_octets", mib.tx.pkt_cnt.cnt_64),
+ STAT_BCMASP_MIB_TX("tx_65_127_oct", mib.tx.pkt_cnt.cnt_127),
+ STAT_BCMASP_MIB_TX("tx_128_255_oct", mib.tx.pkt_cnt.cnt_255),
+ STAT_BCMASP_MIB_TX("tx_256_511_oct", mib.tx.pkt_cnt.cnt_511),
+ STAT_BCMASP_MIB_TX("tx_512_1023_oct", mib.tx.pkt_cnt.cnt_1023),
+ STAT_BCMASP_MIB_TX("tx_1024_1518_oct", mib.tx.pkt_cnt.cnt_1518),
+ STAT_BCMASP_MIB_TX("tx_vlan_1519_1522_oct", mib.tx.pkt_cnt.cnt_mgv),
+ STAT_BCMASP_MIB_TX("tx_1522_2047_oct", mib.tx.pkt_cnt.cnt_2047),
+ STAT_BCMASP_MIB_TX("tx_2048_4095_oct", mib.tx.pkt_cnt.cnt_4095),
+ STAT_BCMASP_MIB_TX("tx_4096_9216_oct", mib.tx.pkt_cnt.cnt_9216),
+ STAT_BCMASP_MIB_TX("tx_pkts", mib.tx.pkts),
+ STAT_BCMASP_MIB_TX("tx_multicast", mib.tx.mca),
+ STAT_BCMASP_MIB_TX("tx_broadcast", mib.tx.bca),
+ STAT_BCMASP_MIB_TX("tx_pause", mib.tx.pf),
+ STAT_BCMASP_MIB_TX("tx_control", mib.tx.cf),
+ STAT_BCMASP_MIB_TX("tx_fcs_err", mib.tx.fcs),
+ STAT_BCMASP_MIB_TX("tx_oversize", mib.tx.ovr),
+ STAT_BCMASP_MIB_TX("tx_defer", mib.tx.drf),
+ STAT_BCMASP_MIB_TX("tx_excess_defer", mib.tx.edf),
+ STAT_BCMASP_MIB_TX("tx_single_col", mib.tx.scl),
+ STAT_BCMASP_MIB_TX("tx_multi_col", mib.tx.mcl),
+ STAT_BCMASP_MIB_TX("tx_late_col", mib.tx.lcl),
+ STAT_BCMASP_MIB_TX("tx_excess_col", mib.tx.ecl),
+ STAT_BCMASP_MIB_TX("tx_frags", mib.tx.frg),
+ STAT_BCMASP_MIB_TX("tx_total_col", mib.tx.ncl),
+ STAT_BCMASP_MIB_TX("tx_jabber", mib.tx.jbr),
+ STAT_BCMASP_MIB_TX("tx_bytes", mib.tx.bytes),
+ STAT_BCMASP_MIB_TX("tx_good_pkts", mib.tx.pok),
+ STAT_BCMASP_MIB_TX("tx_unicast", mib.tx.uc),
+ /* UniMAC RUNT counters */
+ STAT_BCMASP_RUNT("rx_runt_pkts", mib.rx_runt_cnt),
+ STAT_BCMASP_RUNT("rx_runt_valid_fcs", mib.rx_runt_fcs),
+ STAT_BCMASP_RUNT("rx_runt_inval_fcs_align", mib.rx_runt_fcs_align),
+ STAT_BCMASP_RUNT("rx_runt_bytes", mib.rx_runt_bytes),
+ /* EDPKT counters */
+ STAT_BCMASP_RX_EDPKT("edpkt_ts", mib.edpkt_ts,
+ ASP_EDPKT_RX_TS_COUNTER),
+ STAT_BCMASP_RX_EDPKT("edpkt_rx_pkt_cnt", mib.edpkt_rx_pkt_cnt,
+ ASP_EDPKT_RX_PKT_CNT),
+ STAT_BCMASP_RX_EDPKT("edpkt_hdr_ext_cnt", mib.edpkt_hdr_ext_cnt,
+ ASP_EDPKT_HDR_EXTR_CNT),
+ STAT_BCMASP_RX_EDPKT("edpkt_hdr_out_cnt", mib.edpkt_hdr_out_cnt,
+ ASP_EDPKT_HDR_OUT_CNT),
+ /* ASP RX control */
+ STAT_BCMASP_RX_CTRL("umac_frm_cnt", mib.umac_frm_cnt,
+ ASP_RX_CTRL_UMAC_0_FRAME_COUNT),
+ STAT_BCMASP_RX_CTRL("fb_frm_cnt", mib.fb_frm_cnt,
+ ASP_RX_CTRL_FB_0_FRAME_COUNT),
+ STAT_BCMASP_RX_CTRL("fb_out_frm_cnt", mib.fb_out_frm_cnt,
+ ASP_RX_CTRL_FB_OUT_FRAME_COUNT),
+ STAT_BCMASP_RX_CTRL("fb_filt_out_frm_cnt", mib.fb_filt_out_frm_cnt,
+ ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT),
+ STAT_BCMASP_RX_CTRL("fb_rx_fifo_depth", mib.fb_rx_fifo_depth,
+ ASP_RX_CTRL_FB_RX_FIFO_DEPTH),
+ /* Software maintained statistics */
+ STAT_BCMASP_SOFT_MIB(alloc_rx_buff_failed),
+ STAT_BCMASP_SOFT_MIB(alloc_rx_skb_failed),
+ STAT_BCMASP_SOFT_MIB(rx_dma_failed),
+ STAT_BCMASP_SOFT_MIB(tx_dma_failed),
+ STAT_BCMASP_SOFT_MIB(mc_filters_full_cnt),
+ STAT_BCMASP_SOFT_MIB(uc_filters_full_cnt),
+ STAT_BCMASP_SOFT_MIB(filters_combine_cnt),
+ STAT_BCMASP_SOFT_MIB(promisc_filters_cnt),
+ STAT_BCMASP_SOFT_MIB(tx_realloc_offload_failed),
+ STAT_BCMASP_SOFT_MIB(tx_realloc_offload),
+
+};
+
+#define BCMASP_STATS_LEN ARRAY_SIZE(bcmasp_gstrings_stats)
+
+static int bcmasp_get_sset_count(struct net_device *dev, int string_set)
+{
+ switch (string_set) {
+ case ETH_SS_STATS:
+ return BCMASP_STATS_LEN;
+ case ETH_SS_PRIV_FLAGS:
+ return BCMASP_PRIV_FLAGS_COUNT;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void bcmasp_get_strings(struct net_device *dev, u32 stringset,
+ u8 *data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < BCMASP_STATS_LEN; i++) {
+ memcpy(data + i * ETH_GSTRING_LEN,
+ bcmasp_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ }
+ break;
+ case ETH_SS_PRIV_FLAGS:
+ for (i = 0; i < BCMASP_PRIV_FLAGS_COUNT; i++) {
+ memcpy(data + i * ETH_GSTRING_LEN,
+ bcmasp_private_flags[i],
+ ETH_GSTRING_LEN);
+ }
+ break;
+ }
+}
+
+static void bcmasp_update_mib_counters(struct bcmasp_intf *priv)
+{
+ int i, j = 0;
+
+ for (i = 0; i < BCMASP_STATS_LEN; i++) {
+ const struct bcmasp_stats *s;
+ u16 offset = 0;
+ u32 val = 0;
+ char *p;
+
+ s = &bcmasp_gstrings_stats[i];
+ switch (s->type) {
+ case BCMASP_STAT_NETDEV:
+ case BCMASP_STAT_SOFT:
+ continue;
+ case BCMASP_STAT_RUNT:
+ offset += BCMASP_STAT_OFFSET;
+ fallthrough;
+ case BCMASP_STAT_MIB_TX:
+ offset += BCMASP_STAT_OFFSET;
+ fallthrough;
+ case BCMASP_STAT_MIB_RX:
+ val = umac_rl(priv, UMC_MIB_START + j + offset);
+ offset = 0; /* Reset Offset */
+ break;
+ case BCMASP_STAT_RX_EDPKT:
+ val = rx_edpkt_core_rl(priv->parent, s->reg_offset);
+ break;
+ case BCMASP_STAT_RX_CTRL:
+ offset = s->reg_offset;
+ if (offset != ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT)
+ offset += sizeof(u32) * priv->port;
+ val = rx_ctrl_core_rl(priv->parent, offset);
+ break;
+ }
+
+ j += s->stat_sizeof;
+ p = (char *)priv + s->stat_offset;
+ *(u32 *)p = val;
+ }
+}
+
+static void bcmasp_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct bcmasp_intf *priv = netdev_priv(dev);
+ int i;
+
+ if (netif_running(dev))
+ bcmasp_update_mib_counters(priv);
+
+ dev->netdev_ops->ndo_get_stats(dev);
+
+ for (i = 0; i < BCMASP_STATS_LEN; i++) {
+ const struct bcmasp_stats *s;
+ char *p;
+
+ s = &bcmasp_gstrings_stats[i];
+ if (s->type == BCMASP_STAT_NETDEV)
+ p = (char *)&dev->stats;
+ else
+ p = (char *)priv;
+ p += s->stat_offset;
+ if (sizeof(unsigned long) != sizeof(u32) &&
+ s->stat_sizeof == sizeof(unsigned long))
+ data[i] = *(unsigned long *)p;
+ else
+ data[i] = *(u32 *)p;
+ }
+}
+
+static void bcmasp_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strlcpy(info->driver, "bcmasp", sizeof(info->driver));
+ strlcpy(info->version, "v2.0", sizeof(info->version));
+ strlcpy(info->bus_info, dev_name(dev->dev.parent),
+ sizeof(info->bus_info));
+ info->n_priv_flags = BCMASP_PRIV_FLAGS_COUNT;
+}
+
+static int bcmasp_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ if (!dev->phydev)
+ return -ENODEV;
+
+ phy_ethtool_ksettings_get(dev->phydev, cmd);
+
+ return 0;
+}
+
+static int bcmasp_set_link_ksettings(struct net_device *dev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ if (!dev->phydev)
+ return -ENODEV;
+
+ return phy_ethtool_ksettings_set(dev->phydev, cmd);
+}
+
+static u32 bcmasp_get_msglevel(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ return intf->msg_enable;
+}
+
+static void bcmasp_set_msglevel(struct net_device *dev, u32 level)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ intf->msg_enable = level;
+}
+
+static int bcmasp_nway_reset(struct net_device *dev)
+{
+ if (!dev->phydev)
+ return -ENODEV;
+
+ return genphy_restart_aneg(dev->phydev);
+}
+
+static void bcmasp_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER;
+ wol->wolopts = intf->wolopts;
+ memset(wol->sopass, 0, sizeof(wol->sopass));
+
+ if (wol->wolopts & WAKE_MAGICSECURE)
+ memcpy(wol->sopass, intf->sopass, sizeof(intf->sopass));
+}
+
+static int bcmasp_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct device *kdev = &intf->parent->pdev->dev;
+
+ if (!device_can_wakeup(kdev))
+ return -EOPNOTSUPP;
+
+ if (wol->wolopts & ~(WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER))
+ return -EINVAL;
+
+ if (wol->wolopts & WAKE_MAGICSECURE)
+ memcpy(intf->sopass, wol->sopass, sizeof(wol->sopass));
+
+ if (wol->wolopts) {
+ device_set_wakeup_enable(kdev, 1);
+ if (intf->wol_irq_disabled)
+ enable_irq_wake(intf->wol_irq);
+ intf->wol_irq_disabled = false;
+ } else {
+ device_set_wakeup_enable(kdev, 0);
+ if (!intf->wol_irq_disabled)
+ disable_irq_wake(intf->wol_irq);
+ intf->wol_irq_disabled = true;
+ }
+
+ intf->wolopts = wol->wolopts;
+
+ return 0;
+}
+
+static int bcmasp_flow_insert(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct bcmasp_net_filter *nfilter;
+ u32 loc = cmd->fs.location;
+ bool wake = false;
+
+ if (cmd->fs.ring_cookie == RX_CLS_FLOW_WAKE)
+ wake = true;
+
+ /* Currently only supports WAKE filters */
+ if (!wake)
+ return -EOPNOTSUPP;
+
+ switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
+ case ETHER_FLOW:
+ case IP_USER_FLOW:
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ /* Check if filter already exists */
+ if (bcmasp_netfilt_check_dup(intf, &cmd->fs))
+ return -EINVAL;
+
+ nfilter = bcmasp_netfilt_get_init(intf, loc, wake, true);
+ if (IS_ERR(nfilter))
+ return PTR_ERR(nfilter);
+
+ /* Return the location where we did insert the filter */
+ cmd->fs.location = nfilter->hw_index;
+ memcpy(&nfilter->fs, &cmd->fs, sizeof(struct ethtool_rx_flow_spec));
+
+ /* Since we only support wake filters, defer register programming till
+ * suspend time.
+ */
+ return 0;
+}
+
+static int bcmasp_flow_delete(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct bcmasp_net_filter *nfilter;
+
+ nfilter = bcmasp_netfilt_get_init(intf, cmd->fs.location, false, false);
+ if (IS_ERR(nfilter))
+ return PTR_ERR(nfilter);
+
+ bcmasp_netfilt_release(intf, nfilter);
+
+ return 0;
+}
+
+static int bcmasp_flow_get(struct bcmasp_intf *intf, struct ethtool_rxnfc *cmd)
+{
+ struct bcmasp_net_filter *nfilter;
+
+ nfilter = bcmasp_netfilt_get_init(intf, cmd->fs.location, false, false);
+ if (IS_ERR(nfilter))
+ return PTR_ERR(nfilter);
+
+ memcpy(&cmd->fs, &nfilter->fs, sizeof(nfilter->fs));
+
+ cmd->data = bcmasp_netfilt_get_max(intf);
+
+ return 0;
+}
+
+static int bcmasp_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ int ret = -EOPNOTSUPP;
+
+ mutex_lock(&intf->parent->net_lock);
+
+ switch (cmd->cmd) {
+ case ETHTOOL_SRXCLSRLINS:
+ ret = bcmasp_flow_insert(dev, cmd);
+ break;
+ case ETHTOOL_SRXCLSRLDEL:
+ ret = bcmasp_flow_delete(dev, cmd);
+ break;
+ default:
+ break;
+ }
+
+ mutex_unlock(&intf->parent->net_lock);
+
+ return ret;
+}
+
+static int bcmasp_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
+ u32 *rule_locs)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ int err = 0;
+
+ mutex_lock(&intf->parent->net_lock);
+
+ switch (cmd->cmd) {
+ case ETHTOOL_GRXCLSRLCNT:
+ cmd->rule_cnt = bcmasp_netfilt_get_active(intf);
+ /* We support specifying rule locations */
+ cmd->data |= RX_CLS_LOC_SPECIAL;
+ break;
+ case ETHTOOL_GRXCLSRULE:
+ err = bcmasp_flow_get(intf, cmd);
+ break;
+ case ETHTOOL_GRXCLSRLALL:
+ bcmasp_netfilt_get_all_active(intf, rule_locs, &cmd->rule_cnt);
+ cmd->data = bcmasp_netfilt_get_max(intf);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ mutex_unlock(&intf->parent->net_lock);
+
+ return err;
+}
+
+static int bcmasp_set_priv_flags(struct net_device *dev, u32 flags)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ intf->wol_keep_rx_en = flags & BCMASP_WOL_KEEP_RX_EN ? 1 : 0;
+
+ return 0;
+}
+
+static u32 bcmasp_get_priv_flags(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ u32 ret_flags = 0;
+
+ ret_flags |= intf->wol_keep_rx_en ? BCMASP_WOL_KEEP_RX_EN : 0;
+
+ return ret_flags;
+}
+
+void bcmasp_eee_enable_set(struct bcmasp_intf *intf, bool enable)
+{
+ u32 reg;
+
+ reg = umac_rl(intf, UMC_EEE_CTRL);
+ if (enable)
+ reg |= EEE_EN;
+ else
+ reg &= ~EEE_EN;
+ umac_wl(intf, reg, UMC_EEE_CTRL);
+
+ intf->eee.eee_enabled = enable;
+ intf->eee.eee_active = enable;
+}
+
+static int bcmasp_get_eee(struct net_device *dev, struct ethtool_eee *e)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct ethtool_eee *p = &intf->eee;
+
+ if (!dev->phydev)
+ return -ENODEV;
+
+ e->eee_enabled = p->eee_enabled;
+ e->eee_active = p->eee_active;
+ e->tx_lpi_enabled = p->tx_lpi_enabled;
+ e->tx_lpi_timer = umac_rl(intf, UMC_EEE_LPI_TIMER);
+
+ return phy_ethtool_get_eee(dev->phydev, e);
+}
+
+static int bcmasp_set_eee(struct net_device *dev, struct ethtool_eee *e)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct ethtool_eee *p = &intf->eee;
+ int ret;
+
+ if (!dev->phydev)
+ return -ENODEV;
+
+ if (!p->eee_enabled) {
+ bcmasp_eee_enable_set(intf, false);
+ } else {
+ ret = phy_init_eee(dev->phydev, 0);
+ if (ret) {
+ netif_err(intf, hw, dev,
+ "EEE initialization failed: %d\n", ret);
+ return ret;
+ }
+
+ umac_wl(intf, e->tx_lpi_timer, UMC_EEE_LPI_TIMER);
+ intf->eee.eee_active = ret >= 0;
+ intf->eee.tx_lpi_enabled = e->tx_lpi_enabled;
+ bcmasp_eee_enable_set(intf, true);
+ }
+
+ return phy_ethtool_set_eee(dev->phydev, e);
+}
+
+const struct ethtool_ops bcmasp_ethtool_ops = {
+ .get_drvinfo = bcmasp_get_drvinfo,
+ .get_wol = bcmasp_get_wol,
+ .set_wol = bcmasp_set_wol,
+ .get_link = ethtool_op_get_link,
+ .get_strings = bcmasp_get_strings,
+ .get_ethtool_stats = bcmasp_get_ethtool_stats,
+ .get_sset_count = bcmasp_get_sset_count,
+ .get_link_ksettings = bcmasp_get_link_ksettings,
+ .set_link_ksettings = bcmasp_set_link_ksettings,
+ .get_msglevel = bcmasp_get_msglevel,
+ .set_msglevel = bcmasp_set_msglevel,
+ .nway_reset = bcmasp_nway_reset,
+ .get_rxnfc = bcmasp_get_rxnfc,
+ .set_rxnfc = bcmasp_set_rxnfc,
+ .get_priv_flags = bcmasp_get_priv_flags,
+ .set_priv_flags = bcmasp_set_priv_flags,
+ .set_eee = bcmasp_set_eee,
+ .get_eee = bcmasp_get_eee,
+};
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
new file mode 100644
index 0000000..f9c073a
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
@@ -0,0 +1,1414 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt) "bcmasp_intf: " fmt
+
+#include <asm/byteorder.h>
+#include <linux/brcmphy.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/phy_fixed.h>
+#include <linux/ptp_classify.h>
+#include <linux/platform_device.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static inline int incr_ring(int index, int ring_count)
+{
+ index++;
+ if (index == ring_count)
+ return 0;
+
+ return index;
+}
+
+/* Points to last byte of descriptor */
+static inline dma_addr_t incr_last_byte(dma_addr_t addr, dma_addr_t beg,
+ int ring_count)
+{
+ dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+ addr += DESC_SIZE;
+ if (addr > end)
+ return beg + DESC_SIZE - 1;
+
+ return addr;
+}
+
+/* Points to first byte of descriptor */
+static inline dma_addr_t incr_first_byte(dma_addr_t addr, dma_addr_t beg,
+ int ring_count)
+{
+ dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+ addr += DESC_SIZE;
+ if (addr >= end)
+ return beg;
+
+ return addr;
+}
+
+static inline void bcmasp_enable_tx(struct bcmasp_intf *intf, int en)
+{
+ if (en) {
+ tx_spb_ctrl_wl(intf, TX_SPB_CTRL_ENABLE_EN, TX_SPB_CTRL_ENABLE);
+ tx_epkt_core_wl(intf, (TX_EPKT_C_CFG_MISC_EN |
+ TX_EPKT_C_CFG_MISC_PT |
+ (intf->port << TX_EPKT_C_CFG_MISC_PS_SHIFT)),
+ TX_EPKT_C_CFG_MISC);
+ } else {
+ tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+ tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+ }
+}
+
+static inline void bcmasp_enable_rx(struct bcmasp_intf *intf, int en)
+{
+ if (en)
+ rx_edpkt_cfg_wl(intf, RX_EDPKT_CFG_ENABLE_EN,
+ RX_EDPKT_CFG_ENABLE);
+ else
+ rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+}
+
+static void bcmasp_set_rx_mode(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+ unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ int ret;
+
+ spin_lock_bh(&intf->parent->mda_lock);
+
+ bcmasp_disable_all_filters(intf);
+
+ if (dev->flags & IFF_PROMISC)
+ goto set_promisc;
+
+ bcmasp_set_promisc(intf, 0);
+
+ bcmasp_set_broad(intf, 1);
+
+ bcmasp_set_oaddr(intf, dev->dev_addr, 1);
+
+ if (dev->flags & IFF_ALLMULTI) {
+ bcmasp_set_allmulti(intf, 1);
+ } else {
+ bcmasp_set_allmulti(intf, 0);
+
+ netdev_for_each_mc_addr(ha, dev) {
+ ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+ if (ret) {
+ intf->mib.mc_filters_full_cnt++;
+ goto set_promisc;
+ }
+ }
+ }
+
+ netdev_for_each_uc_addr(ha, dev) {
+ ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+ if (ret) {
+ intf->mib.uc_filters_full_cnt++;
+ goto set_promisc;
+ }
+ }
+
+ spin_unlock_bh(&intf->parent->mda_lock);
+ return;
+
+set_promisc:
+ bcmasp_set_promisc(intf, 1);
+ intf->mib.promisc_filters_cnt++;
+
+ /* disable all filters used by this port */
+ bcmasp_disable_all_filters(intf);
+
+ spin_unlock_bh(&intf->parent->mda_lock);
+}
+
+static void bcmasp_clean_txcb(struct bcmasp_intf *intf, int index)
+{
+ struct bcmasp_tx_cb *txcb = &intf->tx_cbs[index];
+
+ txcb->skb = NULL;
+ dma_unmap_addr_set(txcb, dma_addr, 0);
+ dma_unmap_len_set(txcb, dma_len, 0);
+ txcb->last = false;
+}
+
+static int tx_spb_ring_full(struct bcmasp_intf *intf, int cnt)
+{
+ int next_index, i;
+
+ /* Check if we have enough room for cnt descriptors */
+ for (i = 0; i < cnt; i++) {
+ next_index = incr_ring(intf->tx_spb_index, DESC_RING_COUNT);
+ if (next_index == intf->tx_spb_clean_index)
+ return 1;
+ }
+
+ return 0;
+}
+
+static struct sk_buff *bcmasp_csum_offload(struct net_device *dev,
+ struct sk_buff *skb,
+ bool *csum_hw)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ u32 header = 0, header2 = 0, epkt = 0;
+ struct bcmasp_pkt_offload *offload;
+ struct sk_buff *new_skb;
+ unsigned int header_cnt = 0;
+ u16 ip_ver;
+ u8 ip_proto;
+
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return skb;
+
+ if (unlikely(skb_headroom(skb) < sizeof(*offload))) {
+ new_skb = skb_realloc_headroom(skb, sizeof(*offload));
+ if (!new_skb) {
+ intf->mib.tx_realloc_offload_failed++;
+ goto help;
+ }
+
+ dev_consume_skb_any(skb);
+ skb = new_skb;
+ intf->mib.tx_realloc_offload++;
+ }
+
+ ip_ver = htons(skb->protocol);
+ switch (ip_ver) {
+ case ETH_P_IP:
+ header |= PKT_OFFLOAD_HDR_SIZE_2((ip_hdrlen(skb) >> 8) & 0xf);
+ header2 |= PKT_OFFLOAD_HDR2_SIZE_2(ip_hdrlen(skb) & 0xff);
+ epkt |= PKT_OFFLOAD_EPKT_IP(0) | PKT_OFFLOAD_EPKT_CSUM_L2;
+ ip_proto = ip_hdr(skb)->protocol;
+ header_cnt += 2;
+ break;
+ case ETH_P_IPV6:
+ header |= PKT_OFFLOAD_HDR_SIZE_2((IP6_HLEN >> 8) & 0xf);
+ header2 |= PKT_OFFLOAD_HDR2_SIZE_2(IP6_HLEN & 0xff);
+ epkt |= PKT_OFFLOAD_EPKT_IP(1) | PKT_OFFLOAD_EPKT_CSUM_L2;
+ ip_proto = ipv6_hdr(skb)->nexthdr;
+ header_cnt += 2;
+ break;
+ default:
+ goto help;
+ }
+
+ switch (ip_proto) {
+ case IPPROTO_TCP:
+ header2 |= PKT_OFFLOAD_HDR2_SIZE_3(tcp_hdrlen(skb));
+ epkt |= PKT_OFFLOAD_EPKT_TP(0) | PKT_OFFLOAD_EPKT_CSUM_L3;
+ header_cnt++;
+ break;
+ case IPPROTO_UDP:
+ header2 |= PKT_OFFLOAD_HDR2_SIZE_3(UDP_HLEN);
+ epkt |= PKT_OFFLOAD_EPKT_TP(1) | PKT_OFFLOAD_EPKT_CSUM_L3;
+ header_cnt++;
+ break;
+ default:
+ goto help;
+ }
+
+ offload = (struct bcmasp_pkt_offload *)skb_push(skb, sizeof(*offload));
+
+ header |= PKT_OFFLOAD_HDR_OP | PKT_OFFLOAD_HDR_COUNT(header_cnt) |
+ PKT_OFFLOAD_HDR_SIZE_1(ETH_HLEN);
+ epkt |= PKT_OFFLOAD_EPKT_OP;
+
+ offload->nop = htonl(PKT_OFFLOAD_NOP);
+ offload->header = htonl(header);
+ offload->header2 = htonl(header2);
+ offload->epkt = htonl(epkt);
+ offload->end = htonl(PKT_OFFLOAD_END_OP);
+ *csum_hw = true;
+
+ return skb;
+
+help:
+ skb_checksum_help(skb);
+
+ return skb;
+}
+
+static netdev_tx_t bcmasp_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct device *kdev = &intf->parent->pdev->dev;
+ struct bcmasp_desc *desc;
+ struct bcmasp_tx_cb *txcb;
+ dma_addr_t mapping, valid;
+ bool csum_hw = false;
+ unsigned int total_bytes, size;
+ int spb_index, nr_frags, ret, i, j;
+ skb_frag_t *frag;
+
+ spin_lock(&intf->tx_lock);
+
+ nr_frags = skb_shinfo(skb)->nr_frags;
+
+ if (tx_spb_ring_full(intf, nr_frags + 1)) {
+ netif_stop_queue(dev);
+ netdev_err(dev, "Tx Ring Full!\n");
+ ret = NETDEV_TX_BUSY;
+ goto out;
+ }
+
+ /* Save skb len before adding csum offload header */
+ total_bytes = skb->len;
+ skb = bcmasp_csum_offload(dev, skb, &csum_hw);
+ if (!skb) {
+ ret = NETDEV_TX_OK;
+ goto out;
+ }
+
+ spb_index = intf->tx_spb_index;
+ valid = intf->tx_spb_dma_valid;
+ for (i = 0; i <= nr_frags; i++) {
+ if (!i) {
+ size = skb_headlen(skb);
+ mapping = dma_map_single(kdev, skb->data, size,
+ DMA_TO_DEVICE);
+ } else {
+ frag = &skb_shinfo(skb)->frags[i - 1];
+ size = skb_frag_size(frag);
+ mapping = skb_frag_dma_map(kdev, frag, 0, size,
+ DMA_TO_DEVICE);
+ }
+
+ if (dma_mapping_error(kdev, mapping)) {
+ netif_err(intf, tx_err, dev,
+ "DMA map failed at %p (len=%d\n",
+ skb->data, skb->len);
+ ret = NETDEV_TX_OK;
+ intf->mib.tx_dma_failed++;
+ goto out_unmap_frags;
+ }
+
+ txcb = &intf->tx_cbs[spb_index];
+ desc = &intf->tx_spb_cpu[spb_index];
+ memset(desc, 0, sizeof(*desc));
+ txcb->skb = skb;
+ txcb->bytes_sent = total_bytes;
+ dma_unmap_addr_set(txcb, dma_addr, mapping);
+ dma_unmap_len_set(txcb, dma_len, size);
+ if (!i) {
+ desc->flags |= DESC_SOF;
+ if (csum_hw)
+ desc->flags |= DESC_EPKT_CMD;
+ }
+
+ if (i == nr_frags) {
+ desc->flags |= DESC_EOF;
+ txcb->last = true;
+ }
+
+ desc->buf = mapping;
+ desc->size = size;
+ desc->flags |= DESC_INT_EN;
+
+ netif_dbg(intf, tx_queued, dev,
+ "%s dma_buf=%pad dma_len=0x%x flags=0x%x index=0x%x\n",
+ __func__, &mapping, desc->size, desc->flags,
+ spb_index);
+
+ spb_index = incr_ring(spb_index, DESC_RING_COUNT);
+ valid = incr_last_byte(valid, intf->tx_spb_dma_addr,
+ DESC_RING_COUNT);
+ }
+
+ /* Ensure all descriptors have been written to DRAM for the
+ * hardware to see up-to-date contents.
+ */
+ wmb();
+
+ intf->tx_spb_index = spb_index;
+ intf->tx_spb_dma_valid = valid;
+ tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_VALID);
+
+ if (tx_spb_ring_full(intf, MAX_SKB_FRAGS + 1))
+ netif_stop_queue(dev);
+
+ spin_unlock(&intf->tx_lock);
+ return NETDEV_TX_OK;
+
+out_unmap_frags:
+ spb_index = intf->tx_spb_index;
+ for (j = 0; j < i; j++) {
+ bcmasp_clean_txcb(intf, spb_index);
+ spb_index = incr_ring(spb_index, DESC_RING_COUNT);
+ }
+out:
+ spin_unlock(&intf->tx_lock);
+ return ret;
+}
+
+static void bcmasp_netif_start(struct net_device *dev, bool start_phy)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ bcmasp_set_rx_mode(dev);
+ napi_enable(&intf->tx_napi);
+ napi_enable(&intf->rx_napi);
+
+ bcmasp_enable_rx_irq(intf, 1);
+ bcmasp_enable_tx_irq(intf, 1);
+
+ if (start_phy)
+ phy_start(dev->phydev);
+}
+
+static inline void umac_reset(struct bcmasp_intf *intf)
+{
+ umac_wl(intf, 0x0, UMC_CMD);
+ umac_wl(intf, UMC_CMD_SW_RESET, UMC_CMD);
+ udelay(10);
+ umac_wl(intf, 0x0, UMC_CMD);
+}
+
+static void umac_set_hw_addr(struct bcmasp_intf *intf,
+ unsigned char *addr)
+{
+ u32 mac0 = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) |
+ addr[3];
+ u32 mac1 = (addr[4] << 8) | addr[5];
+
+ umac_wl(intf, mac0, UMC_MAC0);
+ umac_wl(intf, mac1, UMC_MAC1);
+}
+
+static inline void umac_enable_set(struct bcmasp_intf *intf,
+ u32 mask, unsigned int enable)
+{
+ u32 reg;
+
+ reg = umac_rl(intf, UMC_CMD);
+ if (enable)
+ reg |= mask;
+ else
+ reg &= ~mask;
+ umac_wl(intf, reg, UMC_CMD);
+
+ /* UniMAC stops on a packet boundary, wait for a full-sized packet
+ * to be processed (1 msec).
+ */
+ if (enable == 0)
+ usleep_range(1000, 2000);
+}
+
+static inline void umac_init(struct bcmasp_intf *intf)
+{
+ umac_wl(intf, 0x800, UMC_FRM_LEN);
+ umac_wl(intf, 0xffff, UMC_PAUSE_CNTRL);
+ umac_wl(intf, 0x800, UMC_RX_MAX_PKT_SZ);
+}
+
+static int bcmasp_tx_poll(struct napi_struct *napi, int budget)
+{
+ struct bcmasp_intf *intf =
+ container_of(napi, struct bcmasp_intf, tx_napi);
+ struct device *kdev = &intf->parent->pdev->dev;
+ struct bcmasp_tx_cb *txcb;
+ struct bcmasp_desc *desc;
+ unsigned long read, released = 0;
+ dma_addr_t mapping;
+
+ read = tx_spb_dma_rq(intf, TX_SPB_DMA_READ);
+ while (intf->tx_spb_dma_read != read) {
+ txcb = &intf->tx_cbs[intf->tx_spb_clean_index];
+ mapping = dma_unmap_addr(txcb, dma_addr);
+
+ dma_unmap_single(kdev, mapping,
+ dma_unmap_len(txcb, dma_len),
+ DMA_TO_DEVICE);
+
+ if (txcb->last) {
+ dev_consume_skb_any(txcb->skb);
+ intf->ndev->stats.tx_packets++;
+ intf->ndev->stats.tx_bytes += txcb->bytes_sent;
+ }
+
+ desc = &intf->tx_spb_cpu[intf->tx_spb_clean_index];
+
+ netif_dbg(intf, tx_done, intf->ndev,
+ "%s dma_buf=%pad dma_len=0x%x flags=0x%x c_index=0x%x\n",
+ __func__, &mapping, desc->size, desc->flags,
+ intf->tx_spb_clean_index);
+
+ bcmasp_clean_txcb(intf, intf->tx_spb_clean_index);
+ released++;
+
+ intf->tx_spb_clean_index = incr_ring(intf->tx_spb_clean_index,
+ DESC_RING_COUNT);
+ intf->tx_spb_dma_read = incr_first_byte(intf->tx_spb_dma_read,
+ intf->tx_spb_dma_addr,
+ DESC_RING_COUNT);
+ }
+
+ /* Ensure all descriptors have been written to DRAM for the hardware
+ * to see updated contents.
+ */
+ wmb();
+
+ napi_complete(&intf->tx_napi);
+
+ bcmasp_enable_tx_irq(intf, 1);
+
+ if (released)
+ netif_wake_queue(intf->ndev);
+
+ return 0;
+}
+
+static int bcmasp_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct bcmasp_intf *intf =
+ container_of(napi, struct bcmasp_intf, rx_napi);
+ struct device *kdev = &intf->parent->pdev->dev;
+ struct bcmasp_desc *desc;
+ struct sk_buff *skb;
+ unsigned long processed = 0;
+ dma_addr_t valid;
+ void *data;
+ u64 flags;
+ u32 len;
+
+ valid = rx_edpkt_dma_rq(intf, RX_EDPKT_DMA_VALID) + 1;
+ if (valid == intf->rx_edpkt_dma_addr + DESC_RING_SIZE)
+ valid = intf->rx_edpkt_dma_addr;
+
+ while ((processed < budget) && (valid != intf->rx_edpkt_dma_read)) {
+ desc = &intf->rx_edpkt_cpu[intf->rx_edpkt_index];
+
+ /* Ensure that descriptor has been fully written to DRAM by
+ * hardware before reading by the CPU
+ */
+ rmb();
+
+ /* Calculate virt addr by offsetting from physical addr */
+ data = intf->rx_ring_cpu +
+ (DESC_ADDR(desc->buf) - intf->rx_ring_dma);
+
+ flags = DESC_FLAGS(desc->buf);
+ if (unlikely(flags & (DESC_CRC_ERR | DESC_RX_SYM_ERR))) {
+ netif_err(intf, rx_status, intf->ndev, "flags=0x%llx\n",
+ flags);
+
+ intf->ndev->stats.rx_errors++;
+ intf->ndev->stats.rx_dropped++;
+ goto next;
+ }
+
+ dma_sync_single_for_cpu(kdev, DESC_ADDR(desc->buf), desc->size,
+ DMA_FROM_DEVICE);
+
+ len = desc->size;
+
+ skb = __netdev_alloc_skb(intf->ndev, len,
+ GFP_ATOMIC | __GFP_NOWARN);
+ if (!skb) {
+ intf->ndev->stats.rx_errors++;
+ intf->mib.alloc_rx_skb_failed++;
+ netif_warn(intf, rx_err, intf->ndev,
+ "SKB alloc failed\n");
+ goto next;
+ }
+
+ skb_put(skb, len);
+ memcpy(skb->data, data, len);
+
+ skb_pull(skb, 2);
+ len -= 2;
+ if (likely(intf->crc_fwd)) {
+ skb_trim(skb, len - ETH_FCS_LEN);
+ len -= ETH_FCS_LEN;
+ }
+
+ if ((intf->ndev->features & NETIF_F_RXCSUM) &&
+ (desc->buf & DESC_CHKSUM))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ skb->protocol = eth_type_trans(skb, intf->ndev);
+
+ napi_gro_receive(napi, skb);
+
+ intf->ndev->stats.rx_packets++;
+ intf->ndev->stats.rx_bytes += len;
+
+next:
+ rx_edpkt_cfg_wq(intf, (DESC_ADDR(desc->buf) + desc->size),
+ RX_EDPKT_RING_BUFFER_READ);
+ processed++;
+ intf->rx_edpkt_dma_read =
+ incr_first_byte(intf->rx_edpkt_dma_read,
+ intf->rx_edpkt_dma_addr,
+ DESC_RING_COUNT);
+ intf->rx_edpkt_index = incr_ring(intf->rx_edpkt_index,
+ DESC_RING_COUNT);
+ }
+
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_read, RX_EDPKT_DMA_READ);
+
+ if (processed < budget) {
+ napi_complete_done(&intf->rx_napi, processed);
+ bcmasp_enable_rx_irq(intf, 1);
+ }
+
+ return processed;
+}
+
+static void bcmasp_adj_link(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ struct phy_device *phydev = dev->phydev;
+ int changed = 0;
+ u32 cmd_bits = 0, reg;
+
+ if (intf->old_link != phydev->link) {
+ changed = 1;
+ intf->old_link = phydev->link;
+ }
+
+ if (intf->old_duplex != phydev->duplex) {
+ changed = 1;
+ intf->old_duplex = phydev->duplex;
+ }
+
+ switch (phydev->speed) {
+ case SPEED_2500:
+ cmd_bits = UMC_CMD_SPEED_2500;
+ break;
+ case SPEED_1000:
+ cmd_bits = UMC_CMD_SPEED_1000;
+ break;
+ case SPEED_100:
+ cmd_bits = UMC_CMD_SPEED_100;
+ break;
+ case SPEED_10:
+ cmd_bits = UMC_CMD_SPEED_10;
+ break;
+ default:
+ break;
+ }
+ cmd_bits <<= UMC_CMD_SPEED_SHIFT;
+
+ if (phydev->duplex == DUPLEX_HALF)
+ cmd_bits |= UMC_CMD_HD_EN;
+
+ if (intf->old_pause != phydev->pause) {
+ changed = 1;
+ intf->old_pause = phydev->pause;
+ }
+
+ if (!phydev->pause)
+ cmd_bits |= UMC_CMD_RX_PAUSE_IGNORE | UMC_CMD_TX_PAUSE_IGNORE;
+
+ if (!changed)
+ return;
+
+ if (phydev->link) {
+ reg = umac_rl(intf, UMC_CMD);
+ reg &= ~((UMC_CMD_SPEED_MASK << UMC_CMD_SPEED_SHIFT) |
+ UMC_CMD_HD_EN | UMC_CMD_RX_PAUSE_IGNORE |
+ UMC_CMD_TX_PAUSE_IGNORE);
+ reg |= cmd_bits;
+ umac_wl(intf, reg, UMC_CMD);
+
+ /* Enable RGMII pad */
+ reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+ reg |= RGMII_MODE_EN;
+ rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+
+ intf->eee.eee_active = phy_init_eee(phydev, 0) >= 0;
+ bcmasp_eee_enable_set(intf, intf->eee.eee_active);
+ } else {
+ /* Disable RGMII pad */
+ reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+ reg &= ~RGMII_MODE_EN;
+ rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+ }
+
+ if (changed)
+ phy_print_status(phydev);
+}
+
+/* Restart and set the RX ring */
+static void bcmasp_rx_reset_ring(struct bcmasp_intf *intf)
+{
+ intf->rx_edpkt_dma_read = intf->rx_edpkt_dma_addr;
+ intf->rx_edpkt_index = 0;
+
+ /* Make sure channels are disabled */
+ rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+
+ /* Rx SPB */
+ rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_READ);
+ rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_WRITE);
+ rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_BASE);
+ rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+ RX_EDPKT_RING_BUFFER_END);
+ rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+ RX_EDPKT_RING_BUFFER_VALID);
+
+ /* EDPKT */
+ rx_edpkt_cfg_wl(intf, (RX_EDPKT_CFG_CFG0_RBUF_4K <<
+ RX_EDPKT_CFG_CFG0_DBUF_SHIFT) |
+ (RX_EDPKT_CFG_CFG0_64_ALN <<
+ RX_EDPKT_CFG_CFG0_BALN_SHIFT) |
+ (RX_EDPKT_CFG_CFG0_EFRM_STUF),
+ RX_EDPKT_CFG_CFG0);
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_WRITE);
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_READ);
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_BASE);
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+ RX_EDPKT_DMA_END);
+ rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+ RX_EDPKT_DMA_VALID);
+
+ /* RX Unimac Init */
+ umac2fb_wl(intf, UMAC2FB_CFG_DEFAULT_EN |
+ ((intf->channel + 13) << UMAC2FB_CFG_CHID_SHIFT) |
+ (0xc << UMAC2FB_CFG_OK_SEND_SHIFT), UMAC2FB_CFG);
+}
+
+static int bcmasp_init_rx(struct bcmasp_intf *intf)
+{
+ struct device *kdev = &intf->parent->pdev->dev;
+ struct net_device *ndev = intf->ndev;
+ void *p;
+ dma_addr_t dma;
+ struct page *buffer_pg;
+ int ret;
+
+ intf->rx_buf_order = get_order(RING_BUFFER_SIZE);
+ buffer_pg = alloc_pages(GFP_KERNEL, intf->rx_buf_order);
+
+ dma = dma_map_page(kdev, buffer_pg, 0, RING_BUFFER_SIZE,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(kdev, dma)) {
+ netdev_err(ndev, "Cannot allocate RX buffer\n");
+ __free_pages(buffer_pg, intf->rx_buf_order);
+ return -ENOMEM;
+ }
+ intf->rx_ring_cpu = page_to_virt(buffer_pg);
+ intf->rx_ring_dma = dma;
+ intf->rx_ring_dma_valid = intf->rx_ring_dma + RING_BUFFER_SIZE - 1;
+
+ p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->rx_edpkt_dma_addr,
+ GFP_KERNEL);
+ if (!p) {
+ netdev_err(ndev, "Cannot allocate edpkt desc ring\n");
+ ret = -ENOMEM;
+ goto free_rx_ring;
+ }
+ intf->rx_edpkt_cpu = p;
+
+ netif_napi_add(intf->ndev, &intf->rx_napi, bcmasp_rx_poll,
+ NAPI_POLL_WEIGHT);
+
+ bcmasp_rx_reset_ring(intf);
+
+ return 0;
+
+free_rx_ring:
+ dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+ DMA_FROM_DEVICE);
+ __free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+
+ return ret;
+}
+
+static void bcmasp_reclaim_free_all_rx(struct bcmasp_intf *intf)
+{
+ struct device *kdev = &intf->parent->pdev->dev;
+
+ dma_free_coherent(kdev, DESC_RING_SIZE, intf->rx_edpkt_cpu,
+ intf->rx_edpkt_dma_addr);
+ dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+ DMA_FROM_DEVICE);
+ __free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+}
+
+static int bcmasp_init_tx(struct bcmasp_intf *intf)
+{
+ struct device *kdev = &intf->parent->pdev->dev;
+ void *p;
+ int ret;
+
+ p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->tx_spb_dma_addr,
+ GFP_KERNEL);
+ if (!p)
+ return -ENOMEM;
+
+ intf->tx_spb_cpu = p;
+ intf->tx_spb_dma_valid = intf->tx_spb_dma_addr + DESC_RING_SIZE - 1;
+ intf->tx_spb_dma_read = intf->tx_spb_dma_addr;
+
+ intf->tx_cbs = kcalloc(DESC_RING_COUNT, sizeof(struct bcmasp_tx_cb),
+ GFP_KERNEL);
+ if (!intf->tx_cbs) {
+ ret = -ENOMEM;
+ goto free_tx_spb;
+ }
+
+ spin_lock_init(&intf->tx_lock);
+ intf->tx_spb_index = 0;
+ intf->tx_spb_clean_index = 0;
+
+ netif_tx_napi_add(intf->ndev, &intf->tx_napi, bcmasp_tx_poll,
+ NAPI_POLL_WEIGHT);
+
+ /* Make sure channels are disabled */
+ tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+ tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+
+ /* Tx SPB */
+ tx_spb_ctrl_wl(intf, ((intf->channel + 8) << TX_SPB_CTRL_XF_BID_SHIFT),
+ TX_SPB_CTRL_XF_CTRL2);
+ tx_pause_ctrl_wl(intf, (1 << (intf->channel + 8)), TX_PAUSE_MAP_VECTOR);
+ tx_spb_top_wl(intf, 0x1e, TX_SPB_TOP_BLKOUT);
+ tx_spb_top_wl(intf, 0x0, TX_SPB_TOP_SPRE_BW_CTRL);
+
+ tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_READ);
+ tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_BASE);
+ tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_END);
+ tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_VALID);
+
+ return 0;
+
+free_tx_spb:
+ dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+ intf->tx_spb_dma_addr);
+
+ return ret;
+}
+
+static void bcmasp_reclaim_free_all_tx(struct bcmasp_intf *intf)
+{
+ struct device *kdev = &intf->parent->pdev->dev;
+
+ /* Free descriptors */
+ dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+ intf->tx_spb_dma_addr);
+
+ /* Free cbs */
+ kfree(intf->tx_cbs);
+}
+
+static void bcmasp_ephy_enable_set(struct bcmasp_intf *intf, bool enable)
+{
+ u32 mask = RGMII_EPHY_CFG_IDDQ_BIAS | RGMII_EPHY_CFG_EXT_PWRDOWN |
+ RGMII_EPHY_CFG_IDDQ_GLOBAL;
+ u32 reg;
+
+ reg = rgmii_rl(intf, RGMII_EPHY_CNTRL);
+ if (enable) {
+ reg &= ~RGMII_EPHY_CK25_DIS;
+ rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+ mdelay(1);
+
+ reg &= ~mask;
+ reg |= RGMII_EPHY_RESET;
+ rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+ mdelay(1);
+
+ reg &= ~RGMII_EPHY_RESET;
+ } else {
+ reg |= mask | RGMII_EPHY_RESET;
+ rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+ mdelay(1);
+ reg |= RGMII_EPHY_CK25_DIS;
+ }
+ rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+ mdelay(1);
+}
+
+static void bcmasp_netif_deinit(struct net_device *dev, bool stop_phy,
+ bool stop_rx)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ u32 reg, timeout = 1000;
+
+ napi_disable(&intf->tx_napi);
+
+ bcmasp_enable_tx(intf, 0);
+
+ /* Flush any TX packets in the pipe */
+ tx_spb_dma_wl(intf, TX_SPB_DMA_FIFO_FLUSH, TX_SPB_DMA_FIFO_CTRL);
+ do {
+ reg = tx_spb_dma_rl(intf, TX_SPB_DMA_FIFO_STATUS);
+ if (!(reg & TX_SPB_DMA_FIFO_FLUSH))
+ break;
+ usleep_range(1000, 2000);
+ } while (timeout-- > 0);
+ tx_spb_dma_wl(intf, 0x0, TX_SPB_DMA_FIFO_CTRL);
+
+ umac_enable_set(intf, UMC_CMD_TX_EN, 0);
+
+ if (stop_phy)
+ phy_stop(dev->phydev);
+
+ /* Shut down RX */
+ umac_enable_set(intf, UMC_CMD_RX_EN, 0);
+
+ if (stop_phy || stop_rx) {
+ bcmasp_flush_rx_port(intf);
+ usleep_range(1000, 2000);
+ bcmasp_enable_rx(intf, 0);
+ }
+
+ napi_disable(&intf->rx_napi);
+
+ /* Disable interrupts */
+ bcmasp_enable_tx_irq(intf, 0);
+ bcmasp_enable_rx_irq(intf, 0);
+
+ netif_napi_del(&intf->tx_napi);
+ bcmasp_reclaim_free_all_tx(intf);
+
+ if (stop_phy || stop_rx) {
+ netif_napi_del(&intf->rx_napi);
+ bcmasp_reclaim_free_all_rx(intf);
+ }
+}
+
+static int bcmasp_stop(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ netif_dbg(intf, ifdown, dev, "%s\n", __func__);
+
+ /* Stop tx from updating HW */
+ netif_tx_disable(dev);
+
+ bcmasp_netif_deinit(dev, true, true);
+
+ phy_disconnect(dev->phydev);
+
+ /* Disable internal EPHY */
+ if (intf->internal_phy)
+ bcmasp_ephy_enable_set(intf, false);
+
+ /* Disable the interface clocks */
+ bcmasp_core_clock_set_intf(intf, false);
+
+ clk_disable_unprepare(intf->parent->clk);
+
+ return 0;
+}
+
+static void bcmasp_configure_port(struct bcmasp_intf *intf)
+{
+ u32 reg, id_mode_dis = 0;
+
+ reg = rgmii_rl(intf, RGMII_PORT_CNTRL);
+ reg &= ~RGMII_PORT_MODE_MASK;
+
+ switch (intf->phy_interface) {
+ case PHY_INTERFACE_MODE_RGMII:
+ /* RGMII_NO_ID: TXC transitions at the same time as TXD
+ * (requires PCB or receiver-side delay)
+ * RGMII: Add 2ns delay on TXC (90 degree shift)
+ *
+ * ID is implicitly disabled for 100Mbps (RG)MII operation.
+ */
+ id_mode_dis = RGMII_ID_MODE_DIS;
+ fallthrough;
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ reg |= RGMII_PORT_MODE_EXT_GPHY;
+ break;
+ case PHY_INTERFACE_MODE_MII:
+ reg |= RGMII_PORT_MODE_EXT_EPHY;
+ break;
+ default:
+ break;
+ }
+
+ if (intf->internal_phy)
+ reg |= RGMII_PORT_MODE_EPHY;
+
+ rgmii_wl(intf, reg, RGMII_PORT_CNTRL);
+
+ reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+ reg &= ~RGMII_ID_MODE_DIS;
+ reg |= id_mode_dis;
+ rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+}
+
+static int bcmasp_netif_init(struct net_device *dev, bool phy_connect,
+ bool init_rx)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ phy_interface_t phy_iface = intf->phy_interface;
+ u32 phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE |
+ PHY_BRCM_DIS_TXCRXC_NOENRGY |
+ PHY_BRCM_IDDQ_SUSPEND;
+ struct phy_device *phydev = NULL;
+ int ret;
+
+ /* Always enable interface clocks */
+ bcmasp_core_clock_set_intf(intf, true);
+
+ /* Enable internal PHY before any MAC activity */
+ if (intf->internal_phy)
+ bcmasp_ephy_enable_set(intf, true);
+
+ bcmasp_configure_port(intf);
+
+ /* This is an ugly quirk but we have not been correctly interpreting
+ * the phy_interface values and we have done that across different
+ * drivers, so at least we are consistent in our mistakes.
+ *
+ * When the Generic PHY driver is in use either the PHY has been
+ * strapped or programmed correctly by the boot loader so we should
+ * stick to our incorrect interpretation since we have validated it.
+ *
+ * Now when a dedicated PHY driver is in use, we need to reverse the
+ * meaning of the phy_interface_mode values to something that the PHY
+ * driver will interpret and act on such that we have two mistakes
+ * canceling themselves so to speak. We only do this for the two
+ * modes that GENET driver officially supports on Broadcom STB chips:
+ * PHY_INTERFACE_MODE_RGMII and PHY_INTERFACE_MODE_RGMII_TXID. Other
+ * modes are not *officially* supported with the boot loader and the
+ * scripted environment generating Device Tree blobs for those
+ * platforms.
+ *
+ * Note that internal PHY and fixed-link configurations are not
+ * affected because they use different phy_interface_t values or the
+ * Generic PHY driver.
+ */
+ switch (phy_iface) {
+ case PHY_INTERFACE_MODE_RGMII:
+ phy_iface = PHY_INTERFACE_MODE_RGMII_ID;
+ break;
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ phy_iface = PHY_INTERFACE_MODE_RGMII_RXID;
+ break;
+ default:
+ break;
+ }
+
+ if (phy_connect) {
+ phydev = of_phy_connect(dev, intf->phy_dn, bcmasp_adj_link,
+ phy_flags, phy_iface);
+ if (!phydev) {
+ ret = -ENODEV;
+ netdev_err(dev, "could not attach to PHY\n");
+ goto err_phy_disable;
+ }
+ } else if (!intf->wolopts) {
+ ret = phy_resume(dev->phydev);
+ if (ret)
+ goto err_phy_disable;
+ }
+
+ umac_reset(intf);
+
+ umac_init(intf);
+
+ /* Disable the UniMAC RX/TX */
+ umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 0);
+
+ umac_set_hw_addr(intf, dev->dev_addr);
+
+ intf->old_duplex = -1;
+ intf->old_link = -1;
+ intf->old_pause = -1;
+
+ ret = bcmasp_init_tx(intf);
+ if (ret)
+ goto err_phy_disconnect;
+
+ /* Turn on asp */
+ bcmasp_enable_tx(intf, 1);
+
+ if (init_rx || phy_connect) {
+ ret = bcmasp_init_rx(intf);
+ if (ret)
+ goto err_reclaim_tx;
+ bcmasp_enable_rx(intf, 1);
+ } else if (!rx_edpkt_cfg_rl(intf, RX_EDPKT_CFG_ENABLE)) {
+ /* Do a partial init of RX if register state was reset */
+ bcmasp_rx_reset_ring(intf);
+ bcmasp_enable_rx(intf, 1);
+ }
+
+ /* Turn on UniMAC TX/RX */
+ umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 1);
+
+ intf->crc_fwd = !!(umac_rl(intf, UMC_CMD) & UMC_CMD_CRC_FWD);
+
+ bcmasp_netif_start(dev, phy_connect);
+
+ netif_start_queue(dev);
+
+ return 0;
+
+err_reclaim_tx:
+ bcmasp_reclaim_free_all_tx(intf);
+err_phy_disconnect:
+ if (phydev)
+ phy_disconnect(phydev);
+err_phy_disable:
+ if (intf->internal_phy)
+ bcmasp_ephy_enable_set(intf, false);
+ return ret;
+}
+
+static int bcmasp_open(struct net_device *dev)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+ int ret;
+
+ netif_dbg(intf, ifup, dev, "%s\n", __func__);
+
+ ret = clk_prepare_enable(intf->parent->clk);
+ if (ret)
+ return ret;
+
+ ret = bcmasp_netif_init(dev, true, true);
+ if (ret)
+ clk_disable_unprepare(intf->parent->clk);
+
+ return ret;
+}
+
+static void bcmasp_reset_mib(struct bcmasp_intf *intf)
+{
+ umac_wl(intf, UMC_MIB_CNTRL_RX_CNT_RST |
+ UMC_MIB_CNTRL_RUNT_CNT_RST |
+ UMC_MIB_CNTRL_TX_CNT_RST, UMC_MIB_CNTRL);
+ usleep_range(1000, 2000);
+ umac_wl(intf, 0, UMC_MIB_CNTRL);
+}
+
+static void bcmasp_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ netif_dbg(intf, tx_err, dev, "transmit timeout!\n");
+
+ netif_trans_update(dev);
+ dev->stats.tx_errors++;
+
+ netif_wake_queue(dev);
+}
+
+static int bcmasp_get_phys_port_name(struct net_device *dev,
+ char *name, size_t len)
+{
+ struct bcmasp_intf *intf = netdev_priv(dev);
+
+ if (snprintf(name, len, "p%d", intf->port) >= len)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct net_device_stats *bcmasp_get_stats(struct net_device *dev)
+{
+ return &dev->stats;
+}
+
+static int bcmasp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ if (!dev->phydev)
+ return -ENODEV;
+
+ return phy_mii_ioctl(dev->phydev, rq, cmd);
+}
+
+static const struct net_device_ops bcmasp_netdev_ops = {
+ .ndo_open = bcmasp_open,
+ .ndo_stop = bcmasp_stop,
+ .ndo_start_xmit = bcmasp_xmit,
+ .ndo_tx_timeout = bcmasp_tx_timeout,
+ .ndo_set_rx_mode = bcmasp_set_rx_mode,
+ .ndo_get_phys_port_name = bcmasp_get_phys_port_name,
+ .ndo_get_stats = bcmasp_get_stats,
+ .ndo_do_ioctl = bcmasp_ioctl,
+};
+
+static inline void bcmasp_map_res(struct bcmasp_priv *priv,
+ struct bcmasp_intf *intf)
+{
+ /* Per port */
+ intf->res.umac = priv->base + UMC_OFFSET(intf);
+ intf->res.umac2fb = priv->base + UMAC2FB_OFFSET(intf);
+ intf->res.rgmii = priv->base + RGMII_OFFSET(intf);
+
+ /* Per ch */
+ intf->tx_spb_dma = priv->base + TX_SPB_DMA_OFFSET(intf);
+ intf->res.tx_spb_ctrl = priv->base + TX_SPB_CTRL_OFFSET(intf);
+ /*
+ * Stop gap solution. This should be removed when 72165a0 is
+ * deprecated
+ */
+ if (of_machine_is_compatible("brcm,bcm72165a0")) {
+ intf->res.tx_spb_top = priv->base +
+ TX_SPB_TOP_OFFSET_LEGACY(intf);
+ } else {
+ intf->res.tx_spb_top = priv->base +
+ TX_SPB_TOP_OFFSET(intf);
+ }
+ intf->res.tx_epkt_core = priv->base + TX_EPKT_C_OFFSET(intf);
+ intf->res.tx_pause_ctrl = priv->base + TX_PAUSE_CTRL_OFFSET(intf);
+
+ intf->rx_edpkt_dma = priv->base + RX_EDPKT_DMA_OFFSET(intf);
+ intf->rx_edpkt_cfg = priv->base + RX_EDPKT_CFG_OFFSET(intf);
+}
+
+static irqreturn_t bcmasp_wol_isr(int irq, void *dev_id)
+{
+ struct bcmasp_priv *priv = dev_id;
+
+ pm_wakeup_event(&priv->pdev->dev, 0);
+
+ return IRQ_HANDLED;
+}
+
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+ struct device_node *ndev_dn,
+ int wol_irq)
+{
+ struct device *dev = &priv->pdev->dev;
+ struct bcmasp_intf *intf;
+ struct net_device *ndev;
+ int ch, port, ret;
+
+ if (of_property_read_u32(ndev_dn, "reg", &port)) {
+ dev_warn(dev, "%s: invalid ch number\n", ndev_dn->name);
+ goto err;
+ }
+
+ if (of_property_read_u32(ndev_dn, "channel", &ch)) {
+ dev_warn(dev, "%s: invalid ch number\n", ndev_dn->name);
+ goto err;
+ }
+
+ ndev = alloc_etherdev(sizeof(struct bcmasp_intf));
+ if (!dev) {
+ dev_warn(dev, "%s: unable to alloc ndev\n", ndev_dn->name);
+ goto err;
+ }
+ intf = netdev_priv(ndev);
+
+ /* Interrupt is optional */
+ if (wol_irq > 0) {
+ intf->wol_irq_disabled = true;
+ ret = request_irq(wol_irq, bcmasp_wol_isr, 0, ndev->name, priv);
+ if (ret) {
+ netdev_err(ndev, "unable to request WoL IRQ (%d)\n",
+ ret);
+ goto err_free_netdev;
+ }
+ device_set_wakeup_capable(dev, 1);
+ }
+
+ intf->wol_irq = wol_irq;
+ intf->parent = priv;
+ intf->ndev = ndev;
+ intf->channel = ch;
+ intf->port = port;
+ intf->ndev_dn = ndev_dn;
+
+ ret = of_get_phy_mode(ndev_dn, &intf->phy_interface);
+ if (ret < 0) {
+ dev_err(dev, "invalid PHY mode property\n");
+ goto err_free_irq;
+ }
+
+ if (intf->phy_interface == PHY_INTERFACE_MODE_INTERNAL)
+ intf->internal_phy = true;
+
+ intf->phy_dn = of_parse_phandle(ndev_dn, "phy-handle", 0);
+ if (!intf->phy_dn && of_phy_is_fixed_link(ndev_dn)) {
+ ret = of_phy_register_fixed_link(ndev_dn);
+ if (ret) {
+ dev_warn(dev, "%s: failed to register fixed PHY\n",
+ ndev_dn->name);
+ goto err_free_irq;
+ }
+ intf->phy_dn = ndev_dn;
+ }
+
+ /* Map resource */
+ bcmasp_map_res(priv, intf);
+
+ if ((!phy_interface_mode_is_rgmii(intf->phy_interface) &&
+ intf->phy_interface != PHY_INTERFACE_MODE_MII &&
+ intf->phy_interface != PHY_INTERFACE_MODE_INTERNAL) ||
+ (intf->port != 1 && intf->internal_phy)) {
+ netdev_err(intf->ndev, "invalid PHY mode: %s for port %d\n",
+ phy_modes(intf->phy_interface), intf->port);
+ ret = -EINVAL;
+ goto err_free_irq;
+ }
+
+ bcmasp_reset_mib(intf);
+
+ ret = of_get_mac_address(ndev_dn, ndev->dev_addr);
+ if (ret) {
+ dev_warn(dev, "%s: using random Ethernet MAC\n",
+ ndev_dn->name);
+ eth_hw_addr_random(ndev);
+ }
+
+ SET_NETDEV_DEV(ndev, dev);
+ ndev->netdev_ops = &bcmasp_netdev_ops;
+ ndev->ethtool_ops = &bcmasp_ethtool_ops;
+ intf->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+ NETIF_MSG_PROBE |
+ NETIF_MSG_LINK);
+ ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
+ NETIF_F_RXCSUM;
+ ndev->hw_features |= ndev->features;
+ ndev->needed_headroom += sizeof(struct bcmasp_pkt_offload);
+
+ return intf;
+
+err_free_irq:
+ if (wol_irq > 0)
+ free_irq(wol_irq, priv);
+err_free_netdev:
+ free_netdev(ndev);
+err:
+ return NULL;
+}
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf, bool unregister)
+{
+ if (intf->wol_irq > 0)
+ free_irq(intf->wol_irq, intf->parent);
+ if (unregister)
+ unregister_netdev(intf->ndev);
+ if (of_phy_is_fixed_link(intf->ndev_dn))
+ of_phy_deregister_fixed_link(intf->ndev_dn);
+ free_netdev(intf->ndev);
+}
+
+static void bcmasp_suspend_to_wol(struct bcmasp_intf *intf)
+{
+ struct net_device *ndev = intf->ndev;
+ u32 reg;
+
+ reg = umac_rl(intf, UMC_MPD_CTRL);
+ if (intf->wolopts & (WAKE_MAGIC | WAKE_MAGICSECURE))
+ reg |= UMC_MPD_CTRL_MPD_EN;
+ reg &= ~UMC_MPD_CTRL_PSW_EN;
+ if (intf->wolopts & WAKE_MAGICSECURE) {
+ /* Program the SecureOn password */
+ umac_wl(intf, get_unaligned_be16(&intf->sopass[0]),
+ UMC_PSW_MS);
+ umac_wl(intf, get_unaligned_be32(&intf->sopass[2]),
+ UMC_PSW_LS);
+ reg |= UMC_MPD_CTRL_PSW_EN;
+ }
+ umac_wl(intf, reg, UMC_MPD_CTRL);
+
+ if (intf->wolopts & WAKE_FILTER)
+ bcmasp_netfilt_suspend(intf);
+
+ /* UniMAC receive needs to be turned on */
+ umac_enable_set(intf, UMC_CMD_RX_EN, 1);
+
+ netif_dbg(intf, wol, ndev, "entered WOL mode\n");
+}
+
+static inline bool bcmasp_needs_rx_on(struct bcmasp_intf *intf)
+{
+ return intf->wol_keep_rx_en && intf->wolopts
+ && device_may_wakeup(&intf->parent->pdev->dev);
+}
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf, bool *wol_keep_rx_en)
+{
+ struct device *kdev = &intf->parent->pdev->dev;
+ struct net_device *dev = intf->ndev;
+ bool keep_rx = bcmasp_needs_rx_on(intf);
+ int ret = 0;
+
+ if (!netif_running(dev))
+ return 0;
+
+ netif_device_detach(dev);
+
+ bcmasp_netif_deinit(dev, false, !keep_rx);
+
+ if (!intf->wolopts) {
+ ret = phy_suspend(dev->phydev);
+ if (ret)
+ goto out;
+
+ if (intf->internal_phy)
+ bcmasp_ephy_enable_set(intf, false);
+
+ /* If Wake-on-LAN is disabled, we can safely
+ * disable the network interface clocks.
+ */
+ bcmasp_core_clock_set_intf(intf, false);
+ }
+
+ if (device_may_wakeup(kdev) && intf->wolopts)
+ bcmasp_suspend_to_wol(intf);
+
+ clk_disable_unprepare(intf->parent->clk);
+
+ *wol_keep_rx_en |= keep_rx;
+
+ return ret;
+
+out:
+ bcmasp_netif_init(dev, false, keep_rx);
+ return ret;
+}
+
+static void bcmasp_resume_from_wol(struct bcmasp_intf *intf)
+{
+ u32 reg;
+
+ reg = umac_rl(intf, UMC_MPD_CTRL);
+ reg &= ~UMC_MPD_CTRL_MPD_EN;
+ umac_wl(intf, reg, UMC_MPD_CTRL);
+}
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf)
+{
+ struct net_device *dev = intf->ndev;
+ bool no_init_rx = bcmasp_needs_rx_on(intf);
+ int ret;
+
+ if (!netif_running(dev))
+ return 0;
+
+ ret = clk_prepare_enable(intf->parent->clk);
+ if (ret)
+ return ret;
+
+ ret = bcmasp_netif_init(dev, false, !no_init_rx);
+ if (ret)
+ goto out;
+
+ bcmasp_resume_from_wol(intf);
+
+ if (intf->eee.eee_enabled)
+ bcmasp_eee_enable_set(intf, true);
+
+ netif_device_attach(dev);
+
+ return 0;
+
+out:
+ clk_disable_unprepare(intf->parent->clk);
+ return ret;
+}
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
new file mode 100644
index 0000000..9d3d8ac
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __BCMASP_INTF_DEFS_H
+#define __BCMASP_INTF_DEFS_H
+
+#define UMC_OFFSET(intf) \
+ ((((intf)->port) * 0x800) + 0xc000)
+#define UMC_CMD 0x008
+#define UMC_CMD_TX_EN BIT(0)
+#define UMC_CMD_RX_EN BIT(1)
+#define UMC_CMD_SPEED_SHIFT 0x2
+#define UMC_CMD_SPEED_MASK 0x3
+#define UMC_CMD_SPEED_10 0x0
+#define UMC_CMD_SPEED_100 0x1
+#define UMC_CMD_SPEED_1000 0x2
+#define UMC_CMD_SPEED_2500 0x3
+#define UMC_CMD_PROMISC BIT(4)
+#define UMC_CMD_PAD_EN BIT(5)
+#define UMC_CMD_CRC_FWD BIT(6)
+#define UMC_CMD_PAUSE_FWD BIT(7)
+#define UMC_CMD_RX_PAUSE_IGNORE BIT(8)
+#define UMC_CMD_TX_ADDR_INS BIT(9)
+#define UMC_CMD_HD_EN BIT(10)
+#define UMC_CMD_SW_RESET BIT(13)
+#define UMC_CMD_LCL_LOOP_EN BIT(15)
+#define UMC_CMD_AUTO_CONFIG BIT(22)
+#define UMC_CMD_CNTL_FRM_EN BIT(23)
+#define UMC_CMD_NO_LEN_CHK BIT(24)
+#define UMC_CMD_RMT_LOOP_EN BIT(25)
+#define UMC_CMD_PRBL_EN BIT(27)
+#define UMC_CMD_TX_PAUSE_IGNORE BIT(28)
+#define UMC_CMD_TX_RX_EN BIT(29)
+#define UMC_CMD_RUNT_FILTER_DIS BIT(30)
+#define UMC_MAC0 0x0c
+#define UMC_MAC1 0x10
+#define UMC_FRM_LEN 0x14
+#define UMC_EEE_CTRL 0x64
+#define EN_LPI_RX_PAUSE (1 << 0)
+#define EN_LPI_TX_PFC (1 << 1)
+#define EN_LPI_TX_PAUSE (1 << 2)
+#define EEE_EN (1 << 3)
+#define RX_FIFO_CHECK (1 << 4)
+#define EEE_TX_CLK_DIS (1 << 5)
+#define DIS_EEE_10M (1 << 6)
+#define LP_IDLE_PREDICTION_MODE (1 << 7)
+#define UMC_EEE_LPI_TIMER 0x68
+#define UMC_PAUSE_CNTRL 0x330
+#define UMC_TX_FLUSH 0x334
+#define UMC_MIB_START 0x400
+#define UMC_MIB_CNTRL 0x580
+#define UMC_MIB_CNTRL_RX_CNT_RST BIT(0)
+#define UMC_MIB_CNTRL_RUNT_CNT_RST BIT(1)
+#define UMC_MIB_CNTRL_TX_CNT_RST BIT(2)
+#define UMC_RX_MAX_PKT_SZ 0x608
+#define UMC_MPD_CTRL 0x620
+#define UMC_MPD_CTRL_MPD_EN BIT(0)
+#define UMC_MPD_CTRL_PSW_EN BIT(27)
+#define UMC_PSW_MS 0x624
+#define UMC_PSW_LS 0x628
+
+#define UMAC2FB_OFFSET(intf) \
+ ((((intf)->port) * 0x4) + 0x9f03c)
+#define UMAC2FB_CFG 0x0
+#define UMAC2FB_CFG_OPUT_EN BIT(0)
+#define UMAC2FB_CFG_VLAN_EN BIT(1)
+#define UMAC2FB_CFG_SNAP_EN BIT(2)
+#define UMAC2FB_CFG_BCM_TG_EN BIT(3)
+#define UMAC2FB_CFG_IPUT_EN BIT(4)
+#define UMAC2FB_CFG_CHID_SHIFT 8
+#define UMAC2FB_CFG_OK_SEND_SHIFT 24
+#define UMAC2FB_CFG_DEFAULT_EN \
+ (UMAC2FB_CFG_OPUT_EN | UMAC2FB_CFG_VLAN_EN \
+ | UMAC2FB_CFG_SNAP_EN | UMAC2FB_CFG_IPUT_EN)
+
+#define RGMII_OFFSET(intf) \
+ ((((intf)->port) * 0x100) + 0xd000)
+#define RGMII_EPHY_CNTRL 0x00
+#define RGMII_EPHY_CFG_IDDQ_BIAS BIT(0)
+#define RGMII_EPHY_CFG_EXT_PWRDOWN BIT(1)
+#define RGMII_EPHY_CFG_FORCE_DLL_EN BIT(2)
+#define RGMII_EPHY_CFG_IDDQ_GLOBAL BIT(3)
+#define RGMII_EPHY_CK25_DIS BIT(4)
+#define RGMII_EPHY_RESET BIT(7)
+#define RGMII_OOB_CNTRL 0x0c
+#define RGMII_MODE_EN BIT(6)
+#define RGMII_ID_MODE_DIS BIT(16)
+
+#define RGMII_PORT_CNTRL 0x60
+#define RGMII_PORT_MODE_EPHY 0
+#define RGMII_PORT_MODE_GPHY 1
+#define RGMII_PORT_MODE_EXT_EPHY 2
+#define RGMII_PORT_MODE_EXT_GPHY 3
+#define RGMII_PORT_MODE_EXT_RVMII 4
+#define RGMII_PORT_MODE_MASK GENMASK(2, 0)
+
+#define TX_SPB_DMA_OFFSET(intf) \
+ ((((intf)->channel) * 0x30) + 0x48180)
+#define TX_SPB_DMA_READ 0x00
+#define TX_SPB_DMA_BASE 0x08
+#define TX_SPB_DMA_END 0x10
+#define TX_SPB_DMA_VALID 0x18
+#define TX_SPB_DMA_FIFO_CTRL 0x20
+#define TX_SPB_DMA_FIFO_FLUSH BIT(0)
+#define TX_SPB_DMA_FIFO_STATUS 0x24
+
+#define TX_SPB_CTRL_OFFSET(intf) \
+ ((((intf)->channel) * 0x68) + 0x49340)
+#define TX_SPB_CTRL_ENABLE 0x0
+#define TX_SPB_CTRL_ENABLE_EN BIT(0)
+#define TX_SPB_CTRL_XF_CTRL2 0x20
+#define TX_SPB_CTRL_XF_BID_SHIFT 16
+
+#define TX_SPB_TOP_OFFSET_LEGACY(intf) \
+ ((((intf)->channel) * 0x14) + 0x4a0a0)
+#define TX_SPB_TOP_OFFSET(intf) \
+ ((((intf)->channel) * 0x1c) + 0x4a0e0)
+#define TX_SPB_TOP_BLKOUT 0x0
+#define TX_SPB_TOP_SPRE_BW_CTRL 0x4
+
+#define TX_EPKT_C_OFFSET(intf) \
+ ((((intf)->channel) * 0x120) + 0x40900)
+#define TX_EPKT_C_CFG_MISC 0x0
+#define TX_EPKT_C_CFG_MISC_EN BIT(0)
+#define TX_EPKT_C_CFG_MISC_PT BIT(1)
+#define TX_EPKT_C_CFG_MISC_PS_SHIFT 14
+
+#define TX_PAUSE_CTRL_OFFSET(intf) \
+ ((((intf)->channel * 0xc) + 0x49a20))
+#define TX_PAUSE_MAP_VECTOR 0x8
+
+#define RX_EDPKT_DMA_OFFSET(intf) \
+ ((((intf)->channel) * 0x38) + 0x9ca00)
+#define RX_EDPKT_DMA_WRITE 0x00
+#define RX_EDPKT_DMA_READ 0x08
+#define RX_EDPKT_DMA_BASE 0x10
+#define RX_EDPKT_DMA_END 0x18
+#define RX_EDPKT_DMA_VALID 0x20
+#define RX_EDPKT_DMA_FULLNESS 0x28
+#define RX_EDPKT_DMA_MIN_THRES 0x2c
+#define RX_EDPKT_DMA_CH_XONOFF 0x30
+
+#define RX_EDPKT_CFG_OFFSET(intf) \
+ ((((intf)->channel) * 0x70) + 0x9c600)
+#define RX_EDPKT_CFG_CFG0 0x0
+#define RX_EDPKT_CFG_CFG0_DBUF_SHIFT 9
+#define RX_EDPKT_CFG_CFG0_RBUF 0x0
+#define RX_EDPKT_CFG_CFG0_RBUF_4K 0x1
+#define RX_EDPKT_CFG_CFG0_BUF_4K 0x2
+/* EFRM STUFF, 0 = no byte stuff, 1 = two byte stuff */
+#define RX_EDPKT_CFG_CFG0_EFRM_STUF BIT(11)
+#define RX_EDPKT_CFG_CFG0_BALN_SHIFT 12
+#define RX_EDPKT_CFG_CFG0_NO_ALN 0
+#define RX_EDPKT_CFG_CFG0_4_ALN 2
+#define RX_EDPKT_CFG_CFG0_64_ALN 6
+#define RX_EDPKT_RING_BUFFER_WRITE 0x38
+#define RX_EDPKT_RING_BUFFER_READ 0x40
+#define RX_EDPKT_RING_BUFFER_BASE 0x48
+#define RX_EDPKT_RING_BUFFER_END 0x50
+#define RX_EDPKT_RING_BUFFER_VALID 0x58
+#define RX_EDPKT_CFG_ENABLE 0x6c
+#define RX_EDPKT_CFG_ENABLE_EN BIT(0)
+
+#define RX_SPB_DMA_OFFSET(intf) \
+ ((((intf)->channel) * 0x30) + 0xa0000)
+#define RX_SPB_DMA_READ 0x00
+#define RX_SPB_DMA_BASE 0x08
+#define RX_SPB_DMA_END 0x10
+#define RX_SPB_DMA_VALID 0x18
+#define RX_SPB_DMA_FIFO_CTRL 0x20
+#define RX_SPB_DMA_FIFO_STATUS 0x24
+
+#define RX_SPB_DPCTRL_OFFSET(intf) \
+ ((((intf)->channel) * 0x20) + 0xa3000)
+#define RX_SPB_DPCTRL_WAKE 0x0
+#define RX_SPB_DPCTRL_WAKE_WK BIT(0)
+#define RX_SPB_DPCTRL_FIFO_CTRL 0x8
+#define RX_SPB_DPCTRL_FIFO_STATUS 0xc
+#define RX_SPB_DPCTRL_ENABLE 0x14
+#define RX_SPB_DPCTRL_ENABLE_EN BIT(0)
+
+#define NUM_4K_BUFFERS 32
+#define RING_BUFFER_SIZE (PAGE_SIZE * NUM_4K_BUFFERS)
+
+#define DESC_RING_COUNT (64 * NUM_4K_BUFFERS)
+#define DESC_SIZE 16
+#define DESC_RING_SIZE (DESC_RING_COUNT * DESC_SIZE)
+
+#endif
--
2.7.4
next prev parent reply other threads:[~2021-09-24 21:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-24 21:44 [PATCH net-next 0/5] brcm ASP 2.0 Ethernet controller Justin Chen
2021-09-24 21:44 ` [PATCH net-next 1/5] dt-bindings: net: Brcm " Justin Chen
2021-09-25 22:16 ` Rob Herring
2021-09-24 21:44 ` [PATCH net-next 2/5] dt-bindings: net: brcm,unimac-mdio: Add asp-v2.0 Justin Chen
2021-09-25 22:16 ` Rob Herring
2021-10-04 17:50 ` Rob Herring
2021-09-24 21:44 ` Justin Chen [this message]
2021-09-25 0:05 ` [PATCH net-next 3/5] net: bcmasp: Add support for ASP2.0 Ethernet controller Jakub Kicinski
2021-09-25 1:05 ` Justin Chen
2021-09-25 16:45 ` Andrew Lunn
2021-09-26 2:39 ` Florian Fainelli
2021-09-26 13:58 ` Andrew Lunn
2021-09-29 23:04 ` Justin Chen
2021-09-24 21:44 ` [PATCH net-next 4/5] net: phy: mdio-bcm-unimac: Add asp v2.0 support Justin Chen
2021-09-24 21:44 ` [PATCH net-next 5/5] MAINTAINERS: ASP 2.0 Ethernet driver maintainers Justin Chen
2021-09-25 14:25 ` [PATCH net-next 0/5] brcm ASP 2.0 Ethernet controller Andrew Lunn
2021-09-26 2:22 ` Florian Fainelli
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