netdev - [PATCH v2 net-next 09/12] net: aquantia: implement get_ts

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Date:   Tue, 8 Oct 2019 10:56:54 +0000
From:   Igor Russkikh <Igor.Russkikh@...antia.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        Egor Pomozov <Egor.Pomozov@...antia.com>,
        Dmitry Bezrukov <Dmitry.Bezrukov@...antia.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        Simon Edelhaus <sedelhaus@...vell.com>,
        Igor Russkikh <Igor.Russkikh@...antia.com>,
        Sergey Samoilenko <Sergey.Samoilenko@...antia.com>
Subject: [PATCH v2 net-next 09/12] net: aquantia: implement get_ts_info
 ethtool

From: Egor Pomozov <egor.pomozov@...antia.com>

Ethtool callback with basic information on what PTP features are supported
by the device.

Signed-off-by: Egor Pomozov <egor.pomozov@...antia.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@...antia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@...antia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@...antia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@...antia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@...antia.com>
---
 .../ethernet/aquantia/atlantic/aq_ethtool.c   | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
index 24df132384fb..fb40bd099a4e 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.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_ethtool.c: Definition of ethertool related functions. */
@@ -9,8 +9,11 @@
 #include "aq_ethtool.h"
 #include "aq_nic.h"
 #include "aq_vec.h"
+#include "aq_ptp.h"
 #include "aq_filters.h"
 
+#include <linux/ptp_clock_kernel.h>
+
 static void aq_ethtool_get_regs(struct net_device *ndev,
 				struct ethtool_regs *regs, void *p)
 {
@@ -377,6 +380,35 @@ static int aq_ethtool_set_wol(struct net_device *ndev,
 	return err;
 }
 
+static int aq_ethtool_get_ts_info(struct net_device *ndev,
+				  struct ethtool_ts_info *info)
+{
+	struct aq_nic_s *aq_nic = netdev_priv(ndev);
+
+	ethtool_op_get_ts_info(ndev, info);
+
+	info->so_timestamping |=
+		SOF_TIMESTAMPING_TX_HARDWARE |
+		SOF_TIMESTAMPING_RX_HARDWARE |
+		SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	info->tx_types =
+		BIT(HWTSTAMP_TX_OFF) |
+		BIT(HWTSTAMP_TX_ON);
+
+	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
+
+	if (aq_nic->aq_ptp)
+		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
+
+	info->phc_index = (aq_nic->aq_ptp) ?
+		ptp_clock_index(aq_ptp_get_ptp_clock(aq_nic->aq_ptp)) : -1;
+
+	return 0;
+}
+
 static enum hw_atl_fw2x_rate eee_mask_to_ethtool_mask(u32 speed)
 {
 	u32 rate = 0;
@@ -604,4 +636,5 @@ const struct ethtool_ops aq_ethtool_ops = {
 	.set_link_ksettings  = aq_ethtool_set_link_ksettings,
 	.get_coalesce	     = aq_ethtool_get_coalesce,
 	.set_coalesce	     = aq_ethtool_set_coalesce,
+	.get_ts_info         = aq_ethtool_get_ts_info,
 };
-- 
2.17.1