linux-kernel - [v2, 2/3] staging: fsl-dpaa2/eth: add the get_ts

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Date:   Thu, 26 Apr 2018 18:23:48 +0800
From:   Yangbo Lu <yangbo.lu@....com>
To:     <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Richard Cochran <richardcochran@...il.com>,
        <dan.carpenter@...cle.com>,
        Ioana Radulescu <ruxandra.radulescu@....com>
CC:     Yangbo Lu <yangbo.lu@....com>
Subject: [v2, 2/3] staging: fsl-dpaa2/eth: add the get_ts_info interface for ethtool

Since hardware timestmaping has been supported in driver, this
patch is to add the get_ts_info interface for ethtool to show
timestamping capability.

Signed-off-by: Yangbo Lu <yangbo.lu@....com>
---
Changes for v2:
	- Added this patch.
---
 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h     |    1 +
 drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c |   23 ++++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
index ff204c2..905a4e6 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
@@ -390,6 +390,7 @@ struct dpaa2_eth_priv {
 
 extern const struct ethtool_ops dpaa2_ethtool_ops;
 extern const char dpaa2_eth_drv_version[];
+extern int dpaa2_phc_index;
 
 static inline int dpaa2_eth_cmp_dpni_ver(struct dpaa2_eth_priv *priv,
 					 u16 ver_major, u16 ver_minor)
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
index bfc8b64..1ae779a 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
@@ -30,6 +30,8 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <linux/net_tstamp.h>
+
 #include "dpni.h"	/* DPNI_LINK_OPT_* */
 #include "dpaa2-eth.h"
 
@@ -274,6 +276,26 @@ static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
 	return 0;
 }
 
+int dpaa2_phc_index = -1;
+EXPORT_SYMBOL(dpaa2_phc_index);
+
+static int dpaa2_eth_get_ts_info(struct net_device *dev,
+				 struct ethtool_ts_info *info)
+{
+	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+				SOF_TIMESTAMPING_RX_HARDWARE |
+				SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	info->phc_index = dpaa2_phc_index;
+
+	info->tx_types = (1 << HWTSTAMP_TX_OFF) |
+			 (1 << HWTSTAMP_TX_ON);
+
+	info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+			   (1 << HWTSTAMP_FILTER_ALL);
+	return 0;
+}
+
 const struct ethtool_ops dpaa2_ethtool_ops = {
 	.get_drvinfo = dpaa2_eth_get_drvinfo,
 	.get_link = ethtool_op_get_link,
@@ -283,4 +305,5 @@ static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
 	.get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
 	.get_strings = dpaa2_eth_get_strings,
 	.get_rxnfc = dpaa2_eth_get_rxnfc,
+	.get_ts_info = dpaa2_eth_get_ts_info,
 };
-- 
1.7.1