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From: Igor Russkikh <Igor.Russkikh@aquantia.com>
To: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Cc: "richardcochran@gmail.com" <richardcochran@gmail.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
	Egor Pomozov <Egor.Pomozov@aquantia.com>,
	Sergey Samoilenko <Sergey.Samoilenko@aquantia.com>,
	Dmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>,
	Igor Russkikh <Igor.Russkikh@aquantia.com>
Subject: [PATCH net-next 01/11] net: aquantia: PTP skeleton declarations and callbacks
Date: Mon, 9 Sep 2019 13:38:38 +0000
Message-ID: <cf60b1d3d797d0666a4828fcf5e521e0bd73f8d4.1568034880.git.igor.russkikh@aquantia.com> (raw)
In-Reply-To: <cover.1568034880.git.igor.russkikh@aquantia.com>

From: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>

Here we add basic function for PTP clock register/unregister.
We also declare FW/HW capability bits used to control PTP feature
on device.

PTP device is created if network card has appropriate FW that has PTP
enabled in config. HW supports timestamping for PTPv2 802.AS1 and
PTPv2 IPv4 UDP packets.

It also supports basic PTP callbacks for getting/setting time, adjusting
frequency and time as well.

Co-developed-by: Egor Pomozov <egor.pomozov@aquantia.com>
Signed-off-by: Egor Pomozov <egor.pomozov@aquantia.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
---
 .../net/ethernet/aquantia/atlantic/Makefile   |  1 +
 .../net/ethernet/aquantia/atlantic/aq_nic.c   | 10 +-
 .../net/ethernet/aquantia/atlantic/aq_nic.h   |  5 +-
 .../net/ethernet/aquantia/atlantic/aq_ptp.c   | 93 +++++++++++++++++++
 .../net/ethernet/aquantia/atlantic/aq_ptp.h   | 22 +++++
 .../aquantia/atlantic/hw_atl/hw_atl_utils.h   | 85 ++++++++++++++++-
 6 files changed, 210 insertions(+), 6 deletions(-)
 create mode 100644 drivers/net/ethernet/aquantia/atlantic/aq_ptp.c
 create mode 100644 drivers/net/ethernet/aquantia/atlantic/aq_ptp.h

diff --git a/drivers/net/ethernet/aquantia/atlantic/Makefile b/drivers/net/ethernet/aquantia/atlantic/Makefile
index 131cab855be7..cd12d9d824ec 100644
--- a/drivers/net/ethernet/aquantia/atlantic/Makefile
+++ b/drivers/net/ethernet/aquantia/atlantic/Makefile
@@ -24,6 +24,7 @@ atlantic-objs := aq_main.o \
 	aq_ethtool.o \
 	aq_drvinfo.o \
 	aq_filters.o \
+	aq_ptp.o \
 	hw_atl/hw_atl_a0.o \
 	hw_atl/hw_atl_b0.o \
 	hw_atl/hw_atl_utils.o \
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index 8f66e7817811..8721d43fd129 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+ * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
  */
 
 /* File aq_nic.c: Definition of common code for NIC. */
@@ -12,6 +12,7 @@
 #include "aq_hw.h"
 #include "aq_pci_func.h"
 #include "aq_main.h"
+#include "aq_ptp.h"
 
 #include <linux/moduleparam.h>
 #include <linux/netdevice.h>
@@ -331,6 +332,10 @@ int aq_nic_init(struct aq_nic_s *self)
 		self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
 		aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw);
 
+	err = aq_ptp_init(self, self->irqvecs - 1);
+	if (err < 0)
+		goto err_exit;
+
 	netif_carrier_off(self->ndev);
 
 err_exit:
@@ -970,6 +975,9 @@ void aq_nic_deinit(struct aq_nic_s *self)
 		self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
 		aq_vec_deinit(aq_vec);
 
+	aq_ptp_unregister(self);
+	aq_ptp_free(self);
+
 	if (likely(self->aq_fw_ops->deinit)) {
 		mutex_lock(&self->fwreq_mutex);
 		self->aq_fw_ops->deinit(self->aq_hw);
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
index 255b54a6ae07..d0979bba7ed3 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+ * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
  */
 
 /* File aq_nic.h: Declaration of common code for NIC. */
@@ -17,6 +17,7 @@ struct aq_ring_s;
 struct aq_hw_ops;
 struct aq_fw_s;
 struct aq_vec_s;
+struct aq_ptp_s;
 
 struct aq_nic_cfg_s {
 	const struct aq_hw_caps_s *aq_hw_caps;
@@ -108,6 +109,8 @@ struct aq_nic_s {
 	u32 irqvecs;
 	/* mutex to serialize FW interface access operations */
 	struct mutex fwreq_mutex;
+	/* PTP support */
+	struct aq_ptp_s *aq_ptp;
 	struct aq_hw_rx_fltrs_s aq_hw_rx_fltrs;
 };
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ptp.c b/drivers/net/ethernet/aquantia/atlantic/aq_ptp.c
new file mode 100644
index 000000000000..c6cdcdc1a6aa
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ptp.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Aquantia Corporation Network Driver
+ * Copyright (C) 2014-2019 Aquantia Corporation. All rights reserved
+ */
+
+/* File aq_ptp.c:
+ * Definition of functions for Linux PTP support.
+ */
+
+#include <linux/ptp_clock_kernel.h>
+#include <linux/clocksource.h>
+
+#include "aq_nic.h"
+#include "aq_ptp.h"
+
+struct aq_ptp_s {
+	struct aq_nic_s *aq_nic;
+
+	struct ptp_clock *ptp_clock;
+	struct ptp_clock_info ptp_info;
+};
+
+static struct ptp_clock_info aq_ptp_clock = {
+	.owner		= THIS_MODULE,
+	.name		= "atlantic ptp",
+	.n_ext_ts	= 0,
+	.pps		= 0,
+	.n_per_out     = 0,
+	.n_pins        = 0,
+	.pin_config    = NULL,
+};
+
+int aq_ptp_init(struct aq_nic_s *aq_nic, unsigned int idx_vec)
+{
+	struct hw_atl_utils_mbox mbox;
+	struct ptp_clock *clock;
+	struct aq_ptp_s *self;
+	int err = 0;
+
+	hw_atl_utils_mpi_read_stats(aq_nic->aq_hw, &mbox);
+
+	if (!(mbox.info.caps_ex & BIT(CAPS_EX_PHY_PTP_EN))) {
+		aq_nic->aq_ptp = NULL;
+		return 0;
+	}
+
+	self = kzalloc(sizeof(*self), GFP_KERNEL);
+	if (!self) {
+		err = -ENOMEM;
+		goto err_exit;
+	}
+
+	self->aq_nic = aq_nic;
+
+	self->ptp_info = aq_ptp_clock;
+	clock = ptp_clock_register(&self->ptp_info, &aq_nic->ndev->dev);
+	if (!clock) {
+		netdev_err(aq_nic->ndev, "ptp_clock_register failed\n");
+		err = 0;
+		goto err_exit;
+	}
+	self->ptp_clock = clock;
+
+	aq_nic->aq_ptp = self;
+
+	return 0;
+
+err_exit:
+	kfree(self);
+	aq_nic->aq_ptp = NULL;
+	return err;
+}
+
+void aq_ptp_unregister(struct aq_nic_s *aq_nic)
+{
+	struct aq_ptp_s *self = aq_nic->aq_ptp;
+
+	if (!self)
+		return;
+
+	ptp_clock_unregister(self->ptp_clock);
+}
+
+void aq_ptp_free(struct aq_nic_s *aq_nic)
+{
+	struct aq_ptp_s *self = aq_nic->aq_ptp;
+
+	if (!self)
+		return;
+
+	kfree(self);
+	aq_nic->aq_ptp = NULL;
+}
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ptp.h b/drivers/net/ethernet/aquantia/atlantic/aq_ptp.h
new file mode 100644
index 000000000000..cea238959b20
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ptp.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Aquantia Corporation Network Driver
+ * Copyright (C) 2014-2019 Aquantia Corporation. All rights reserved
+ */
+
+/* File aq_ptp.h: Declaration of PTP functions.
+ */
+#ifndef AQ_PTP_H
+#define AQ_PTP_H
+
+#include <linux/net_tstamp.h>
+#include <linux/version.h>
+
+/* Common functions */
+int aq_ptp_init(struct aq_nic_s *aq_nic, unsigned int idx_vec);
+
+void aq_ptp_unregister(struct aq_nic_s *aq_nic);
+void aq_ptp_free(struct aq_nic_s *aq_nic);
+
+void aq_ptp_clock_init(struct aq_nic_s *aq_nic);
+
+#endif /* AQ_PTP_H */
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
index 692bed70e104..7121248954df 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+ * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
  */
 
 /* File hw_atl_utils.h: Declaration of common functions for Atlantic hardware
@@ -168,6 +168,34 @@ struct __packed hw_atl_utils_mbox_header {
 	u32 error;
 };
 
+struct __packed hw_aq_ptp_offset {
+	u16 ingress_100;
+	u16 egress_100;
+	u16 ingress_1000;
+	u16 egress_1000;
+	u16 ingress_2500;
+	u16 egress_2500;
+	u16 ingress_5000;
+	u16 egress_5000;
+	u16 ingress_10000;
+	u16 egress_10000;
+};
+
+enum gpio_pin_function {
+	GPIO_PIN_FUNCTION_NC,
+	GPIO_PIN_FUNCTION_VAUX_ENABLE,
+	GPIO_PIN_FUNCTION_EFUSE_BURN_ENABLE,
+	GPIO_PIN_FUNCTION_SFP_PLUS_DETECT,
+	GPIO_PIN_FUNCTION_TX_DISABLE,
+	GPIO_PIN_FUNCTION_RATE_SEL_0,
+	GPIO_PIN_FUNCTION_RATE_SEL_1,
+	GPIO_PIN_FUNCTION_TX_FAULT,
+	GPIO_PIN_FUNCTION_PTP0,
+	GPIO_PIN_FUNCTION_PTP1,
+	GPIO_PIN_FUNCTION_PTP2,
+	GPIO_PIN_FUNCTION_SIZE
+};
+
 struct __packed hw_aq_info {
 	u8 reserved[6];
 	u16 phy_fault_code;
@@ -175,9 +203,23 @@ struct __packed hw_aq_info {
 	u8 cable_len;
 	u8 reserved1;
 	u32 cable_diag_data[4];
-	u8 reserved2[32];
+	struct hw_aq_ptp_offset ptp_offset;
+	u8 reserved2[12];
 	u32 caps_lo;
 	u32 caps_hi;
+	u32 reserved_datapath;
+	u32 reserved3[7];
+	u32 reserved_simpleresp[3];
+	u32 reserved_linkstat[7];
+	u32 reserved_wakes_count;
+	u32 reserved_eee_stat[12];
+	u32 tx_stuck_cnt;
+	u32 setting_address;
+	u32 setting_length;
+	u32 caps_ex;
+	enum gpio_pin_function gpio_pin[3];
+	u32 pcie_aer_dump[18];
+	u16 snr_margin[4];
 };
 
 struct __packed hw_atl_utils_mbox {
@@ -372,7 +414,7 @@ enum hw_atl_fw2x_caps_hi {
 	CAPS_HI_2P5GBASET_FD_EEE,
 	CAPS_HI_5GBASET_FD_EEE,
 	CAPS_HI_10GBASET_FD_EEE,
-	CAPS_HI_RESERVED5,
+	CAPS_HI_FW_REQUEST,
 	CAPS_HI_RESERVED6,
 	CAPS_HI_RESERVED7,
 	CAPS_HI_RESERVED8,
@@ -380,7 +422,7 @@ enum hw_atl_fw2x_caps_hi {
 	CAPS_HI_CABLE_DIAG,
 	CAPS_HI_TEMPERATURE,
 	CAPS_HI_DOWNSHIFT,
-	CAPS_HI_PTP_AVB_EN,
+	CAPS_HI_PTP_AVB_EN_FW2X   = 20,
 	CAPS_HI_MEDIA_DETECT,
 	CAPS_HI_LINK_DROP,
 	CAPS_HI_SLEEP_PROXY,
@@ -429,6 +471,41 @@ enum hw_atl_fw2x_ctrl {
 	CTRL_FORCE_RECONNECT,
 };
 
+enum hw_atl_caps_ex {
+	CAPS_EX_LED_CONTROL       =  0,
+	CAPS_EX_LED0_MODE_LO,
+	CAPS_EX_LED0_MODE_HI,
+	CAPS_EX_LED1_MODE_LO,
+	CAPS_EX_LED1_MODE_HI,
+	CAPS_EX_LED2_MODE_LO      =  5,
+	CAPS_EX_LED2_MODE_HI,
+	CAPS_EX_RESERVED07,
+	CAPS_EX_RESERVED08,
+	CAPS_EX_RESERVED09,
+	CAPS_EX_RESERVED10        = 10,
+	CAPS_EX_RESERVED11,
+	CAPS_EX_RESERVED12,
+	CAPS_EX_RESERVED13,
+	CAPS_EX_RESERVED14,
+	CAPS_EX_RESERVED15        = 15,
+	CAPS_EX_PHY_PTP_EN,
+	CAPS_EX_MAC_PTP_EN,
+	CAPS_EX_EXT_CLK_EN,
+	CAPS_EX_SCHED_DMA_EN,
+	CAPS_EX_PTP_GPIO_EN       = 20,
+	CAPS_EX_UPDATE_SETTINGS,
+	CAPS_EX_PHY_CTRL_TS_PIN,
+	CAPS_EX_SNR_OPERATING_MARGIN,
+	CAPS_EX_RESERVED24,
+	CAPS_EX_RESERVED25        = 25,
+	CAPS_EX_RESERVED26,
+	CAPS_EX_RESERVED27,
+	CAPS_EX_RESERVED28,
+	CAPS_EX_RESERVED29,
+	CAPS_EX_RESERVED30        = 30,
+	CAPS_EX_RESERVED31
+};
+
 struct aq_hw_s;
 struct aq_fw_ops;
 struct aq_hw_caps_s;
-- 
2.17.1


  reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09 13:38 [PATCH net-next 00/11] net: aquantia: PTP support for AQC devices Igor Russkikh
2019-09-09 13:38 ` Igor Russkikh [this message]
2019-09-10 19:10   ` [PATCH net-next 01/11] net: aquantia: PTP skeleton declarations and callbacks Andrew Lunn
2019-09-11 11:41     ` Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 02/11] net: aquantia: unify styling of bit enums Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 03/11] net: aquantia: add basic ptp_clock callbacks Igor Russkikh
2019-09-09 23:27   ` kbuild test robot
2019-09-10  2:45   ` kbuild test robot
2019-09-10 19:20   ` Andrew Lunn
2019-09-09 13:38 ` [PATCH net-next 04/11] net: aquantia: add PTP rings infrastructure Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 05/11] net: aquantia: styling fixes on ptp related functions Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 06/11] net: aquantia: implement data PTP datapath Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 07/11] net: aquantia: rx filters for ptp Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 08/11] net: aquantia: add support for ptp ioctls Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 09/11] net: aquantia: implement get_ts_info ethtool Igor Russkikh
2019-09-09 13:38 ` [PATCH net-next 10/11] net: aquantia: add support for Phy access Igor Russkikh
2019-09-09 13:39 ` [PATCH net-next 11/11] net: aquantia: add support for PIN funcs Igor Russkikh
2019-09-10  2:45   ` kbuild test robot
2019-09-10 13:03   ` kbuild test robot

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