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Message-ID: <1632851026-5415-3-git-send-email-sbhatta@marvell.com>
Date: Tue, 28 Sep 2021 23:13:46 +0530
From: Subbaraya Sundeep <sbhatta@...vell.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <netdev@...r.kernel.org>
CC: <sgoutham@...vell.com>, <hkelam@...vell.com>, <gakula@...vell.com>,
<naveenm@...vell.com>, <rsaladi2@...vell.com>,
Subbaraya Sundeep <sbhatta@...vell.com>
Subject: [net-next PATCH 2/2] octeontx2-nicvf: Add PTP hardware clock support to NIX VF
From: Naveen Mamindlapalli <naveenm@...vell.com>
This patch adds PTP PHC support to NIX VF interfaces. This enables
a VF to run PTP master/slave instance. PTP block being a shared
hardware resource it is recommended to avoid running multiple
PTP instances in the system which will impact the PTP clock
accuracy.
Signed-off-by: Naveen Mamindlapalli <naveenm@...vell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@...vell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@...vell.com>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c | 3 +++
drivers/net/ethernet/marvell/octeontx2/nic/Makefile | 2 +-
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 3 +++
drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 1 +
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 6 ++++--
drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c | 5 +++++
drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 6 ++++++
7 files changed, 23 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 5bdbc77..c3842e45 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -730,6 +730,9 @@ static int rvu_cgx_ptp_rx_cfg(struct rvu *rvu, u16 pcifunc, bool enable)
int rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
+ if (!is_pf_cgxmapped(rvu, rvu_get_pf(req->hdr.pcifunc)))
+ return -EPERM;
+
return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, true);
}
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/Makefile b/drivers/net/ethernet/marvell/octeontx2/nic/Makefile
index b92c267..aaf9acc 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/Makefile
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/Makefile
@@ -9,6 +9,6 @@ obj-$(CONFIG_OCTEONTX2_VF) += rvu_nicvf.o
rvu_nicpf-y := otx2_pf.o otx2_common.o otx2_txrx.o otx2_ethtool.o \
otx2_ptp.o otx2_flows.o otx2_tc.o cn10k.o otx2_dmac_flt.o \
otx2_devlink.o
-rvu_nicvf-y := otx2_vf.o otx2_devlink.o
+rvu_nicvf-y := otx2_vf.o otx2_devlink.o otx2_ptp.o
ccflags-y += -I$(srctree)/drivers/net/ethernet/marvell/octeontx2/af
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index 069d1b9..bf86a55 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -834,6 +834,9 @@ int otx2_open(struct net_device *netdev);
int otx2_stop(struct net_device *netdev);
int otx2_set_real_num_queues(struct net_device *netdev,
int tx_queues, int rx_queues);
+int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd);
+int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr);
+
/* MCAM filter related APIs */
int otx2_mcam_flow_init(struct otx2_nic *pf);
int otx2vf_mcam_flow_init(struct otx2_nic *pfvf);
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
index 38e5924..b0f57bd 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
@@ -1347,6 +1347,7 @@ static const struct ethtool_ops otx2vf_ethtool_ops = {
.get_pauseparam = otx2_get_pauseparam,
.set_pauseparam = otx2_set_pauseparam,
.get_link_ksettings = otx2vf_get_link_ksettings,
+ .get_ts_info = otx2_get_ts_info,
};
void otx2vf_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 53a3e8d..ab07964 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1975,7 +1975,7 @@ static int otx2_config_hw_tx_tstamp(struct otx2_nic *pfvf, bool enable)
return 0;
}
-static int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
+int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct hwtstamp_config config;
@@ -2031,8 +2031,9 @@ static int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
return copy_to_user(ifr->ifr_data, &config,
sizeof(config)) ? -EFAULT : 0;
}
+EXPORT_SYMBOL(otx2_config_hwtstamp);
-static int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd)
+int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct hwtstamp_config *cfg = &pfvf->tstamp;
@@ -2047,6 +2048,7 @@ static int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd)
return -EOPNOTSUPP;
}
}
+EXPORT_SYMBOL(otx2_ioctl);
static int otx2_do_set_vf_mac(struct otx2_nic *pf, int vf, const u8 *mac)
{
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c
index 5e3056a..977a8a4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c
@@ -223,6 +223,11 @@ int otx2_ptp_init(struct otx2_nic *pfvf)
struct ptp_req *req;
int err;
+ if (is_otx2_lbkvf(pfvf->pdev)) {
+ pfvf->ptp = NULL;
+ return 0;
+ }
+
mutex_lock(&pfvf->mbox.lock);
/* check if PTP block is available */
req = otx2_mbox_alloc_msg_ptp_op(&pfvf->mbox);
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index 03b4ec6..f1fddae 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
@@ -8,9 +8,11 @@
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/net_tstamp.h>
#include "otx2_common.h"
#include "otx2_reg.h"
+#include "otx2_ptp.h"
#include "cn10k.h"
#define DRV_NAME "rvu_nicvf"
@@ -500,6 +502,7 @@ static const struct net_device_ops otx2vf_netdev_ops = {
.ndo_set_features = otx2vf_set_features,
.ndo_get_stats64 = otx2_get_stats64,
.ndo_tx_timeout = otx2_tx_timeout,
+ .ndo_do_ioctl = otx2_ioctl,
};
static int otx2_wq_init(struct otx2_nic *vf)
@@ -640,6 +643,9 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (err)
goto err_detach_rsrc;
+ /* Don't check for error. Proceed without ptp */
+ otx2_ptp_init(vf);
+
/* Assign default mac address */
otx2_get_mac_from_af(netdev);
--
2.7.4
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