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octeontx2-nicvf: Add PTP hardware clock support to NIX VF

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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@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Naveen Mamindlapalli 2021-09-28 23:13:46 +05:30 committed by David S. Miller
parent ffd2f89ad0
commit 43510ef4dd
7 changed files with 23 additions and 3 deletions
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3
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
View File

@ -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);
}

2
drivers/net/ethernet/marvell/octeontx2/nic/Makefile
View File

@ -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

3
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
View File

@ -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);

1
drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
View File

@ -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)

6
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
View File

@ -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)
{

5
drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c
View File

@ -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);

6
drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
View File

@ -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);