[PATCH net-next v2, 2/4] enetc: add get_ts_info interface for ethtool

Y.b. Lu
2019-05-23T02:33:39Z

This patch is to add get_ts_info interface for ethtool
to support getting timestamping capability.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
Changes for v2:
- None.
---
drivers/net/ethernet/freescale/enetc/enetc.h | 3 ++
.../ethernet/freescale/enetc/enetc_ethtool.c | 31 +++++++++++++++++++
.../net/ethernet/freescale/enetc/enetc_ptp.c | 5 +++
3 files changed, 39 insertions(+)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index 281bb4368b98..ea443268bf70 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -209,6 +209,9 @@ struct enetc_msg_cmd_set_primary_mac {

#define ENETC_CBDR_TIMEOUT 1000 /* usecs */

+/* PTP driver exports */
+extern int enetc_phc_index;
+
/* SI common */
int enetc_pci_probe(struct pci_dev *pdev, const char *name, int sizeof_priv);
void enetc_pci_remove(struct pci_dev *pdev);
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
index b9519b6ad727..fcb52efec075 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
@@ -555,6 +555,35 @@ static void enetc_get_ringparam(struct net_device *ndev,
}
}

+static int enetc_get_ts_info(struct net_device *ndev,
+ struct ethtool_ts_info *info)
+{
+ int *phc_idx;
+
+ phc_idx = symbol_get(enetc_phc_index);
+ if (phc_idx) {
+ info->phc_index = *phc_idx;
+ symbol_put(enetc_phc_index);
+ } else {
+ info->phc_index = -1;
+ }
+
+#ifdef CONFIG_FSL_ENETC_HW_TIMESTAMPING
+ info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ info->tx_types = (1 << HWTSTAMP_TX_OFF) |
+ (1 << HWTSTAMP_TX_ON);
+ info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+ (1 << HWTSTAMP_FILTER_ALL);
+#else
+ info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE;
+#endif
+ return 0;
+}
+
static const struct ethtool_ops enetc_pf_ethtool_ops = {
.get_regs_len = enetc_get_reglen,
.get_regs = enetc_get_regs,
@@ -571,6 +600,7 @@ static const struct ethtool_ops enetc_pf_ethtool_ops = {
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
.get_link = ethtool_op_get_link,
+ .get_ts_info = enetc_get_ts_info,
};

static const struct ethtool_ops enetc_vf_ethtool_ops = {
@@ -586,6 +616,7 @@ static const struct ethtool_ops enetc_vf_ethtool_ops = {
.set_rxfh = enetc_set_rxfh,
.get_ringparam = enetc_get_ringparam,
.get_link = ethtool_op_get_link,
+ .get_ts_info = enetc_get_ts_info,
};

void enetc_set_ethtool_ops(struct net_device *ndev)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
index 8c1497e7d9c5..2fd2586e42bf 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
@@ -7,6 +7,9 @@

#include "enetc.h"

+int enetc_phc_index = -1;
+EXPORT_SYMBOL(enetc_phc_index);
+
static struct ptp_clock_info enetc_ptp_caps = {
.owner = THIS_MODULE,
.name = "ENETC PTP clock",
@@ -96,6 +99,7 @@ static int enetc_ptp_probe(struct pci_dev *pdev,
if (err)
goto err_no_clock;

+ enetc_phc_index = ptp_qoriq->phc_index;
pci_set_drvdata(pdev, ptp_qoriq);

return 0;
@@ -119,6 +123,7 @@ static void enetc_ptp_remove(struct pci_dev *pdev)
{
struct ptp_qoriq *ptp_qoriq = pci_get_drvdata(pdev);

+ enetc_phc_index = -1;
ptp_qoriq_free(ptp_qoriq);
kfree(ptp_qoriq);

--
2.17.1