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android-kvm / linux / aec53e60e0e665b359328b946654bc3ef77aed57 / . / drivers / net / ethernet / marvell / octeontx2 / nic / otx2_ethtool.c
blob: d85db90632d647b6be2d74c6f3a95850f8b2e423 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/* Marvell RVU Ethernet driver
*
* Copyright (C) 2020 Marvell.
*
*/
#include <linux/pci.h>
#include <linux/ethtool.h>
#include <linux/stddef.h>
#include <linux/etherdevice.h>
#include <linux/log2.h>
#include <linux/net_tstamp.h>
#include <linux/linkmode.h>
#include "otx2_common.h"
#include "otx2_ptp.h"
#define DRV_NAME "rvu-nicpf"
#define DRV_VF_NAME "rvu-nicvf"
struct otx2_stat {
char name[ETH_GSTRING_LEN];
unsigned int index;
};
/* HW device stats */
#define OTX2_DEV_STAT(stat) { \
.name = #stat, \
.index = offsetof(struct otx2_dev_stats, stat) / sizeof(u64), \
}
enum link_mode {
OTX2_MODE_SUPPORTED,
OTX2_MODE_ADVERTISED
};
static const struct otx2_stat otx2_dev_stats[] = {
OTX2_DEV_STAT(rx_ucast_frames),
OTX2_DEV_STAT(rx_bcast_frames),
OTX2_DEV_STAT(rx_mcast_frames),
OTX2_DEV_STAT(tx_ucast_frames),
OTX2_DEV_STAT(tx_bcast_frames),
OTX2_DEV_STAT(tx_mcast_frames),
};
/* Driver level stats */
#define OTX2_DRV_STAT(stat) { \
.name = #stat, \
.index = offsetof(struct otx2_drv_stats, stat) / sizeof(atomic_t), \
}
static const struct otx2_stat otx2_drv_stats[] = {
OTX2_DRV_STAT(rx_fcs_errs),
OTX2_DRV_STAT(rx_oversize_errs),
OTX2_DRV_STAT(rx_undersize_errs),
OTX2_DRV_STAT(rx_csum_errs),
OTX2_DRV_STAT(rx_len_errs),
OTX2_DRV_STAT(rx_other_errs),
};
static const struct otx2_stat otx2_queue_stats[] = {
{ "bytes", 0 },
{ "frames", 1 },
};
static const unsigned int otx2_n_dev_stats = ARRAY_SIZE(otx2_dev_stats);
static const unsigned int otx2_n_drv_stats = ARRAY_SIZE(otx2_drv_stats);
static const unsigned int otx2_n_queue_stats = ARRAY_SIZE(otx2_queue_stats);
static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf);
static void otx2_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
strlcpy(info->bus_info, pci_name(pfvf->pdev), sizeof(info->bus_info));
}
static void otx2_get_qset_strings(struct otx2_nic *pfvf, u8 **data, int qset)
{
int start_qidx = qset * pfvf->hw.rx_queues;
int qidx, stats;
for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) {
for (stats = 0; stats < otx2_n_queue_stats; stats++) {
sprintf(*data, "rxq%d: %s", qidx + start_qidx,
otx2_queue_stats[stats].name);
*data += ETH_GSTRING_LEN;
}
}
for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) {
for (stats = 0; stats < otx2_n_queue_stats; stats++) {
sprintf(*data, "txq%d: %s", qidx + start_qidx,
otx2_queue_stats[stats].name);
*data += ETH_GSTRING_LEN;
}
}
}
static void otx2_get_strings(struct net_device *netdev, u32 sset, u8 *data)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
int stats;
if (sset != ETH_SS_STATS)
return;
for (stats = 0; stats < otx2_n_dev_stats; stats++) {
memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
for (stats = 0; stats < otx2_n_drv_stats; stats++) {
memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
otx2_get_qset_strings(pfvf, &data, 0);
if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) {
for (stats = 0; stats < CGX_RX_STATS_COUNT; stats++) {
sprintf(data, "cgx_rxstat%d: ", stats);
data += ETH_GSTRING_LEN;
}
for (stats = 0; stats < CGX_TX_STATS_COUNT; stats++) {
sprintf(data, "cgx_txstat%d: ", stats);
data += ETH_GSTRING_LEN;
}
}
strcpy(data, "reset_count");
data += ETH_GSTRING_LEN;
sprintf(data, "Fec Corrected Errors: ");
data += ETH_GSTRING_LEN;
sprintf(data, "Fec Uncorrected Errors: ");
data += ETH_GSTRING_LEN;
}
static void otx2_get_qset_stats(struct otx2_nic *pfvf,
struct ethtool_stats *stats, u64 **data)
{
int stat, qidx;
if (!pfvf)
return;
for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) {
if (!otx2_update_rq_stats(pfvf, qidx)) {
for (stat = 0; stat < otx2_n_queue_stats; stat++)
*((*data)++) = 0;
continue;
}
for (stat = 0; stat < otx2_n_queue_stats; stat++)
*((*data)++) = ((u64 *)&pfvf->qset.rq[qidx].stats)
[otx2_queue_stats[stat].index];
}
for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) {
if (!otx2_update_sq_stats(pfvf, qidx)) {
for (stat = 0; stat < otx2_n_queue_stats; stat++)
*((*data)++) = 0;
continue;
}
for (stat = 0; stat < otx2_n_queue_stats; stat++)
*((*data)++) = ((u64 *)&pfvf->qset.sq[qidx].stats)
[otx2_queue_stats[stat].index];
}
}
static int otx2_get_phy_fec_stats(struct otx2_nic *pfvf)
{
struct msg_req *req;
int rc = -ENOMEM;
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_cgx_get_phy_fec_stats(&pfvf->mbox);
if (!req)
goto end;
if (!otx2_sync_mbox_msg(&pfvf->mbox))
rc = 0;
end:
mutex_unlock(&pfvf->mbox.lock);
return rc;
}
/* Get device and per queue statistics */
static void otx2_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
u64 fec_corr_blks, fec_uncorr_blks;
struct cgx_fw_data *rsp;
int stat;
otx2_get_dev_stats(pfvf);
for (stat = 0; stat < otx2_n_dev_stats; stat++)
*(data++) = ((u64 *)&pfvf->hw.dev_stats)
[otx2_dev_stats[stat].index];
for (stat = 0; stat < otx2_n_drv_stats; stat++)
*(data++) = atomic_read(&((atomic_t *)&pfvf->hw.drv_stats)
[otx2_drv_stats[stat].index]);
otx2_get_qset_stats(pfvf, stats, &data);
if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) {
otx2_update_lmac_stats(pfvf);
for (stat = 0; stat < CGX_RX_STATS_COUNT; stat++)
*(data++) = pfvf->hw.cgx_rx_stats[stat];
for (stat = 0; stat < CGX_TX_STATS_COUNT; stat++)
*(data++) = pfvf->hw.cgx_tx_stats[stat];
}
*(data++) = pfvf->reset_count;
fec_corr_blks = pfvf->hw.cgx_fec_corr_blks;
fec_uncorr_blks = pfvf->hw.cgx_fec_uncorr_blks;
rsp = otx2_get_fwdata(pfvf);
if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats &&
!otx2_get_phy_fec_stats(pfvf)) {
/* Fetch fwdata again because it's been recently populated with
* latest PHY FEC stats.
*/
rsp = otx2_get_fwdata(pfvf);
if (!IS_ERR(rsp)) {
struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats;
if (pfvf->linfo.fec == OTX2_FEC_BASER) {
fec_corr_blks = p->brfec_corr_blks;
fec_uncorr_blks = p->brfec_uncorr_blks;
} else {
fec_corr_blks = p->rsfec_corr_cws;
fec_uncorr_blks = p->rsfec_uncorr_cws;
}
}
}
*(data++) = fec_corr_blks;
*(data++) = fec_uncorr_blks;
}
static int otx2_get_sset_count(struct net_device *netdev, int sset)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
int qstats_count, mac_stats = 0;
if (sset != ETH_SS_STATS)
return -EINVAL;
qstats_count = otx2_n_queue_stats *
(pfvf->hw.rx_queues + pfvf->hw.tx_queues);
if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag))
mac_stats = CGX_RX_STATS_COUNT + CGX_TX_STATS_COUNT;
otx2_update_lmac_fec_stats(pfvf);
return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count +
mac_stats + OTX2_FEC_STATS_CNT + 1;
}
/* Get no of queues device supports and current queue count */
static void otx2_get_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct otx2_nic *pfvf = netdev_priv(dev);
channel->max_rx = pfvf->hw.max_queues;
channel->max_tx = pfvf->hw.max_queues;
channel->rx_count = pfvf->hw.rx_queues;
channel->tx_count = pfvf->hw.tx_queues;
}
/* Set no of Tx, Rx queues to be used */
static int otx2_set_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct otx2_nic *pfvf = netdev_priv(dev);
bool if_up = netif_running(dev);
int err = 0;
if (!channel->rx_count || !channel->tx_count)
return -EINVAL;
if (bitmap_weight(&pfvf->rq_bmap, pfvf->hw.rx_queues) > 1) {
netdev_err(dev,
"Receive queues are in use by TC police action\n");
return -EINVAL;
}
if (if_up)
dev->netdev_ops->ndo_stop(dev);
err = otx2_set_real_num_queues(dev, channel->tx_count,
channel->rx_count);
if (err)
return err;
pfvf->hw.rx_queues = channel->rx_count;
pfvf->hw.tx_queues = channel->tx_count;
pfvf->qset.cq_cnt = pfvf->hw.tx_queues + pfvf->hw.rx_queues;
if (if_up)
err = dev->netdev_ops->ndo_open(dev);
netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
pfvf->hw.tx_queues, pfvf->hw.rx_queues);
return err;
}
static void otx2_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct cgx_pause_frm_cfg *req, *rsp;
if (is_otx2_lbkvf(pfvf->pdev))
return;
req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox);
if (!req)
return;
if (!otx2_sync_mbox_msg(&pfvf->mbox)) {
rsp = (struct cgx_pause_frm_cfg *)
otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
pause->rx_pause = rsp->rx_pause;
pause->tx_pause = rsp->tx_pause;
}
}
static int otx2_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
if (pause->autoneg)
return -EOPNOTSUPP;
if (is_otx2_lbkvf(pfvf->pdev))
return -EOPNOTSUPP;
if (pause->rx_pause)
pfvf->flags |= OTX2_FLAG_RX_PAUSE_ENABLED;
else
pfvf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED;
if (pause->tx_pause)
pfvf->flags |= OTX2_FLAG_TX_PAUSE_ENABLED;
else
pfvf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED;
return otx2_config_pause_frm(pfvf);
}
static void otx2_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct otx2_qset *qs = &pfvf->qset;
ring->rx_max_pending = Q_COUNT(Q_SIZE_MAX);
ring->rx_pending = qs->rqe_cnt ? qs->rqe_cnt : Q_COUNT(Q_SIZE_256);
ring->tx_max_pending = Q_COUNT(Q_SIZE_MAX);
ring->tx_pending = qs->sqe_cnt ? qs->sqe_cnt : Q_COUNT(Q_SIZE_4K);
}
static int otx2_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
bool if_up = netif_running(netdev);
struct otx2_qset *qs = &pfvf->qset;
u32 rx_count, tx_count;
if (ring->rx_mini_pending || ring->rx_jumbo_pending)
return -EINVAL;
/* Permitted lengths are 16 64 256 1K 4K 16K 64K 256K 1M */
rx_count = ring->rx_pending;
/* On some silicon variants a skid or reserved CQEs are
* needed to avoid CQ overflow.
*/
if (rx_count < pfvf->hw.rq_skid)
rx_count = pfvf->hw.rq_skid;
rx_count = Q_COUNT(Q_SIZE(rx_count, 3));
/* Due pipelining impact minimum 2000 unused SQ CQE's
* need to be maintained to avoid CQ overflow, hence the
* minimum 4K size.
*/
tx_count = clamp_t(u32, ring->tx_pending,
Q_COUNT(Q_SIZE_4K), Q_COUNT(Q_SIZE_MAX));
tx_count = Q_COUNT(Q_SIZE(tx_count, 3));
if (tx_count == qs->sqe_cnt && rx_count == qs->rqe_cnt)
return 0;
if (if_up)
netdev->netdev_ops->ndo_stop(netdev);
/* Assigned to the nearest possible exponent. */
qs->sqe_cnt = tx_count;
qs->rqe_cnt = rx_count;
if (if_up)
return netdev->netdev_ops->ndo_open(netdev);
return 0;
}
static int otx2_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *cmd,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct otx2_hw *hw = &pfvf->hw;
cmd->rx_coalesce_usecs = hw->cq_time_wait;
cmd->rx_max_coalesced_frames = hw->cq_ecount_wait;
cmd->tx_coalesce_usecs = hw->cq_time_wait;
cmd->tx_max_coalesced_frames = hw->cq_ecount_wait;
return 0;
}
static int otx2_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct otx2_hw *hw = &pfvf->hw;
int qidx;
if (!ec->rx_max_coalesced_frames || !ec->tx_max_coalesced_frames)
return 0;
/* 'cq_time_wait' is 8bit and is in multiple of 100ns,
* so clamp the user given value to the range of 1 to 25usec.
*/
ec->rx_coalesce_usecs = clamp_t(u32, ec->rx_coalesce_usecs,
1, CQ_TIMER_THRESH_MAX);
ec->tx_coalesce_usecs = clamp_t(u32, ec->tx_coalesce_usecs,
1, CQ_TIMER_THRESH_MAX);
/* Rx and Tx are mapped to same CQ, check which one
* is changed, if both then choose the min.
*/
if (hw->cq_time_wait == ec->rx_coalesce_usecs)
hw->cq_time_wait = ec->tx_coalesce_usecs;
else if (hw->cq_time_wait == ec->tx_coalesce_usecs)
hw->cq_time_wait = ec->rx_coalesce_usecs;
else
hw->cq_time_wait = min_t(u8, ec->rx_coalesce_usecs,
ec->tx_coalesce_usecs);
/* Max ecount_wait supported is 16bit,
* so clamp the user given value to the range of 1 to 64k.
*/
ec->rx_max_coalesced_frames = clamp_t(u32, ec->rx_max_coalesced_frames,
1, U16_MAX);
ec->tx_max_coalesced_frames = clamp_t(u32, ec->tx_max_coalesced_frames,
1, U16_MAX);
/* Rx and Tx are mapped to same CQ, check which one
* is changed, if both then choose the min.
*/
if (hw->cq_ecount_wait == ec->rx_max_coalesced_frames)
hw->cq_ecount_wait = ec->tx_max_coalesced_frames;
else if (hw->cq_ecount_wait == ec->tx_max_coalesced_frames)
hw->cq_ecount_wait = ec->rx_max_coalesced_frames;
else
hw->cq_ecount_wait = min_t(u16, ec->rx_max_coalesced_frames,
ec->tx_max_coalesced_frames);
if (netif_running(netdev)) {
for (qidx = 0; qidx < pfvf->hw.cint_cnt; qidx++)
otx2_config_irq_coalescing(pfvf, qidx);
}
return 0;
}
static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf,
struct ethtool_rxnfc *nfc)
{
struct otx2_rss_info *rss = &pfvf->hw.rss_info;
if (!(rss->flowkey_cfg &
(NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6)))
return 0;
/* Mimimum is IPv4 and IPv6, SIP/DIP */
nfc->data = RXH_IP_SRC | RXH_IP_DST;
if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_VLAN)
nfc->data |= RXH_VLAN;
switch (nfc->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_TCP)
nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case UDP_V4_FLOW:
case UDP_V6_FLOW:
if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_UDP)
nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_SCTP)
nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case AH_ESP_V4_FLOW:
case AH_ESP_V6_FLOW:
if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_ESP)
nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case AH_V4_FLOW:
case ESP_V4_FLOW:
case IPV4_FLOW:
break;
case AH_V6_FLOW:
case ESP_V6_FLOW:
case IPV6_FLOW:
break;
default:
return -EINVAL;
}
return 0;
}
static int otx2_set_rss_hash_opts(struct otx2_nic *pfvf,
struct ethtool_rxnfc *nfc)
{
struct otx2_rss_info *rss = &pfvf->hw.rss_info;
u32 rxh_l4 = RXH_L4_B_0_1 | RXH_L4_B_2_3;
u32 rss_cfg = rss->flowkey_cfg;
if (!rss->enable) {
netdev_err(pfvf->netdev,
"RSS is disabled, cannot change settings\n");
return -EIO;
}
/* Mimimum is IPv4 and IPv6, SIP/DIP */
if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST))
return -EINVAL;
if (nfc->data & RXH_VLAN)
rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN;
else
rss_cfg &= ~NIX_FLOW_KEY_TYPE_VLAN;
switch (nfc->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
/* Different config for v4 and v6 is not supported.
* Both of them have to be either 4-tuple or 2-tuple.
*/
switch (nfc->data & rxh_l4) {
case 0:
rss_cfg &= ~NIX_FLOW_KEY_TYPE_TCP;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= NIX_FLOW_KEY_TYPE_TCP;
break;
default:
return -EINVAL;
}
break;
case UDP_V4_FLOW:
case UDP_V6_FLOW:
switch (nfc->data & rxh_l4) {
case 0:
rss_cfg &= ~NIX_FLOW_KEY_TYPE_UDP;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= NIX_FLOW_KEY_TYPE_UDP;
break;
default:
return -EINVAL;
}
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
switch (nfc->data & rxh_l4) {
case 0:
rss_cfg &= ~NIX_FLOW_KEY_TYPE_SCTP;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= NIX_FLOW_KEY_TYPE_SCTP;
break;
default:
return -EINVAL;
}
break;
case AH_ESP_V4_FLOW:
case AH_ESP_V6_FLOW:
switch (nfc->data & rxh_l4) {
case 0:
rss_cfg &= ~(NIX_FLOW_KEY_TYPE_ESP |
NIX_FLOW_KEY_TYPE_AH);
rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN |
NIX_FLOW_KEY_TYPE_IPV4_PROTO;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
/* If VLAN hashing is also requested for ESP then do not
* allow because of hardware 40 bytes flow key limit.
*/
if (rss_cfg & NIX_FLOW_KEY_TYPE_VLAN) {
netdev_err(pfvf->netdev,
"RSS hash of ESP or AH with VLAN is not supported\n");
return -EOPNOTSUPP;
}
rss_cfg |= NIX_FLOW_KEY_TYPE_ESP | NIX_FLOW_KEY_TYPE_AH;
/* Disable IPv4 proto hashing since IPv6 SA+DA(32 bytes)
* and ESP SPI+sequence(8 bytes) uses hardware maximum
* limit of 40 byte flow key.
*/
rss_cfg &= ~NIX_FLOW_KEY_TYPE_IPV4_PROTO;
break;
default:
return -EINVAL;
}
break;
case IPV4_FLOW:
case IPV6_FLOW:
rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6;
break;
default:
return -EINVAL;
}
rss->flowkey_cfg = rss_cfg;
otx2_set_flowkey_cfg(pfvf);
return 0;
}
static int otx2_get_rxnfc(struct net_device *dev,
struct ethtool_rxnfc *nfc, u32 *rules)
{
bool ntuple = !!(dev->features & NETIF_F_NTUPLE);
struct otx2_nic *pfvf = netdev_priv(dev);
int ret = -EOPNOTSUPP;
switch (nfc->cmd) {
case ETHTOOL_GRXRINGS:
nfc->data = pfvf->hw.rx_queues;
ret = 0;
break;
case ETHTOOL_GRXCLSRLCNT:
if (netif_running(dev) && ntuple) {
nfc->rule_cnt = pfvf->flow_cfg->nr_flows;
ret = 0;
}
break;
case ETHTOOL_GRXCLSRULE:
if (netif_running(dev) && ntuple)
ret = otx2_get_flow(pfvf, nfc, nfc->fs.location);
break;
case ETHTOOL_GRXCLSRLALL:
if (netif_running(dev) && ntuple)
ret = otx2_get_all_flows(pfvf, nfc, rules);
break;
case ETHTOOL_GRXFH:
return otx2_get_rss_hash_opts(pfvf, nfc);
default:
break;
}
return ret;
}
static int otx2_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc)
{
bool ntuple = !!(dev->features & NETIF_F_NTUPLE);
struct otx2_nic *pfvf = netdev_priv(dev);
int ret = -EOPNOTSUPP;
switch (nfc->cmd) {
case ETHTOOL_SRXFH:
ret = otx2_set_rss_hash_opts(pfvf, nfc);
break;
case ETHTOOL_SRXCLSRLINS:
if (netif_running(dev) && ntuple)
ret = otx2_add_flow(pfvf, nfc);
break;
case ETHTOOL_SRXCLSRLDEL:
if (netif_running(dev) && ntuple)
ret = otx2_remove_flow(pfvf, nfc->fs.location);
break;
default:
break;
}
return ret;
}
static u32 otx2_get_rxfh_key_size(struct net_device *netdev)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct otx2_rss_info *rss;
rss = &pfvf->hw.rss_info;
return sizeof(rss->key);
}
static u32 otx2_get_rxfh_indir_size(struct net_device *dev)
{
return MAX_RSS_INDIR_TBL_SIZE;
}
static int otx2_rss_ctx_delete(struct otx2_nic *pfvf, int ctx_id)
{
struct otx2_rss_info *rss = &pfvf->hw.rss_info;
otx2_rss_ctx_flow_del(pfvf, ctx_id);
kfree(rss->rss_ctx[ctx_id]);
rss->rss_ctx[ctx_id] = NULL;
return 0;
}
static int otx2_rss_ctx_create(struct otx2_nic *pfvf,
u32 *rss_context)
{
struct otx2_rss_info *rss = &pfvf->hw.rss_info;
u8 ctx;
for (ctx = 0; ctx < MAX_RSS_GROUPS; ctx++) {
if (!rss->rss_ctx[ctx])
break;
}
if (ctx == MAX_RSS_GROUPS)
return -EINVAL;
rss->rss_ctx[ctx] = kzalloc(sizeof(*rss->rss_ctx[ctx]), GFP_KERNEL);
if (!rss->rss_ctx[ctx])
return -ENOMEM;
*rss_context = ctx;
return 0;
}
/* RSS context configuration */
static int otx2_set_rxfh_context(struct net_device *dev, const u32 *indir,
const u8 *hkey, const u8 hfunc,
u32 *rss_context, bool delete)
{
struct otx2_nic *pfvf = netdev_priv(dev);
struct otx2_rss_ctx *rss_ctx;
struct otx2_rss_info *rss;
int ret, idx;
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (*rss_context != ETH_RXFH_CONTEXT_ALLOC &&
*rss_context >= MAX_RSS_GROUPS)
return -EINVAL;
rss = &pfvf->hw.rss_info;
if (!rss->enable) {
netdev_err(dev, "RSS is disabled, cannot change settings\n");
return -EIO;
}
if (hkey) {
memcpy(rss->key, hkey, sizeof(rss->key));
otx2_set_rss_key(pfvf);
}
if (delete)
return otx2_rss_ctx_delete(pfvf, *rss_context);
if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
ret = otx2_rss_ctx_create(pfvf, rss_context);
if (ret)
return ret;
}
if (indir) {
rss_ctx = rss->rss_ctx[*rss_context];
for (idx = 0; idx < rss->rss_size; idx++)
rss_ctx->ind_tbl[idx] = indir[idx];
}
otx2_set_rss_table(pfvf, *rss_context);
return 0;
}
static int otx2_get_rxfh_context(struct net_device *dev, u32 *indir,
u8 *hkey, u8 *hfunc, u32 rss_context)
{
struct otx2_nic *pfvf = netdev_priv(dev);
struct otx2_rss_ctx *rss_ctx;
struct otx2_rss_info *rss;
int idx, rx_queues;
rss = &pfvf->hw.rss_info;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (!indir)
return 0;
if (!rss->enable && rss_context == DEFAULT_RSS_CONTEXT_GROUP) {
rx_queues = pfvf->hw.rx_queues;
for (idx = 0; idx < MAX_RSS_INDIR_TBL_SIZE; idx++)
indir[idx] = ethtool_rxfh_indir_default(idx, rx_queues);
return 0;
}
if (rss_context >= MAX_RSS_GROUPS)
return -ENOENT;
rss_ctx = rss->rss_ctx[rss_context];
if (!rss_ctx)
return -ENOENT;
if (indir) {
for (idx = 0; idx < rss->rss_size; idx++)
indir[idx] = rss_ctx->ind_tbl[idx];
}
if (hkey)
memcpy(hkey, rss->key, sizeof(rss->key));
return 0;
}
/* Get RSS configuration */
static int otx2_get_rxfh(struct net_device *dev, u32 *indir,
u8 *hkey, u8 *hfunc)
{
return otx2_get_rxfh_context(dev, indir, hkey, hfunc,
DEFAULT_RSS_CONTEXT_GROUP);
}
/* Configure RSS table and hash key */
static int otx2_set_rxfh(struct net_device *dev, const u32 *indir,
const u8 *hkey, const u8 hfunc)
{
u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP;
return otx2_set_rxfh_context(dev, indir, hkey, hfunc, &rss_context, 0);
}
static u32 otx2_get_msglevel(struct net_device *netdev)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
return pfvf->msg_enable;
}
static void otx2_set_msglevel(struct net_device *netdev, u32 val)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
pfvf->msg_enable = val;
}
static u32 otx2_get_link(struct net_device *netdev)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
/* LBK link is internal and always UP */
if (is_otx2_lbkvf(pfvf->pdev))
return 1;
return pfvf->linfo.link_up;
}
static int otx2_get_ts_info(struct net_device *netdev,
struct ethtool_ts_info *info)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
if (!pfvf->ptp)
return ethtool_op_get_ts_info(netdev, info);
info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->phc_index = otx2_ptp_clock_index(pfvf);
info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_ALL);
return 0;
}
static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf)
{
struct cgx_fw_data *rsp = NULL;
struct msg_req *req;
int err = 0;
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_cgx_get_aux_link_info(&pfvf->mbox);
if (!req) {
mutex_unlock(&pfvf->mbox.lock);
return ERR_PTR(-ENOMEM);
}
err = otx2_sync_mbox_msg(&pfvf->mbox);
if (!err) {
rsp = (struct cgx_fw_data *)
otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
} else {
rsp = ERR_PTR(err);
}
mutex_unlock(&pfvf->mbox.lock);
return rsp;
}
static int otx2_get_fecparam(struct net_device *netdev,
struct ethtool_fecparam *fecparam)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct cgx_fw_data *rsp;
const int fec[] = {
ETHTOOL_FEC_OFF,
ETHTOOL_FEC_BASER,
ETHTOOL_FEC_RS,
ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS};
#define FEC_MAX_INDEX 4
if (pfvf->linfo.fec < FEC_MAX_INDEX)
fecparam->active_fec = fec[pfvf->linfo.fec];
rsp = otx2_get_fwdata(pfvf);
if (IS_ERR(rsp))
return PTR_ERR(rsp);
if (rsp->fwdata.supported_fec < FEC_MAX_INDEX) {
if (!rsp->fwdata.supported_fec)
fecparam->fec = ETHTOOL_FEC_NONE;
else
fecparam->fec = fec[rsp->fwdata.supported_fec];
}
return 0;
}
static int otx2_set_fecparam(struct net_device *netdev,
struct ethtool_fecparam *fecparam)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct mbox *mbox = &pfvf->mbox;
struct fec_mode *req, *rsp;
int err = 0, fec = 0;
switch (fecparam->fec) {
/* Firmware does not support AUTO mode consider it as FEC_OFF */
case ETHTOOL_FEC_OFF:
case ETHTOOL_FEC_AUTO:
fec = OTX2_FEC_OFF;
break;
case ETHTOOL_FEC_RS:
fec = OTX2_FEC_RS;
break;
case ETHTOOL_FEC_BASER:
fec = OTX2_FEC_BASER;
break;
default:
netdev_warn(pfvf->netdev, "Unsupported FEC mode: %d",
fecparam->fec);
return -EINVAL;
}
if (fec == pfvf->linfo.fec)
return 0;
mutex_lock(&mbox->lock);
req = otx2_mbox_alloc_msg_cgx_set_fec_param(&pfvf->mbox);
if (!req) {
err = -ENOMEM;
goto end;
}
req->fec = fec;
err = otx2_sync_mbox_msg(&pfvf->mbox);
if (err)
goto end;
rsp = (struct fec_mode *)otx2_mbox_get_rsp(&pfvf->mbox.mbox,
0, &req->hdr);
if (rsp->fec >= 0)
pfvf->linfo.fec = rsp->fec;
else
err = rsp->fec;
end:
mutex_unlock(&mbox->lock);
return err;
}
static void otx2_get_fec_info(u64 index, int req_mode,
struct ethtool_link_ksettings *link_ksettings)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_fec_modes) = { 0, };
switch (index) {
case OTX2_FEC_NONE:
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT,
otx2_fec_modes);
break;
case OTX2_FEC_BASER:
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
otx2_fec_modes);
break;
case OTX2_FEC_RS:
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
otx2_fec_modes);
break;
case OTX2_FEC_BASER | OTX2_FEC_RS:
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
otx2_fec_modes);
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
otx2_fec_modes);
break;
}
/* Add fec modes to existing modes */
if (req_mode == OTX2_MODE_ADVERTISED)
linkmode_or(link_ksettings->link_modes.advertising,
link_ksettings->link_modes.advertising,
otx2_fec_modes);
else
linkmode_or(link_ksettings->link_modes.supported,
link_ksettings->link_modes.supported,
otx2_fec_modes);
}
static void otx2_get_link_mode_info(u64 link_mode_bmap,
bool req_mode,
struct ethtool_link_ksettings
*link_ksettings)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_link_modes) = { 0, };
const int otx2_sgmii_features[6] = {
ETHTOOL_LINK_MODE_10baseT_Half_BIT,
ETHTOOL_LINK_MODE_10baseT_Full_BIT,
ETHTOOL_LINK_MODE_100baseT_Half_BIT,
ETHTOOL_LINK_MODE_100baseT_Full_BIT,
ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
};
/* CGX link modes to Ethtool link mode mapping */
const int cgx_link_mode[27] = {
0, /* SGMII Mode */
ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
0,
ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
0,
0,
ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
0,
ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
0,
ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
0,
ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT
};
u8 bit;
for_each_set_bit(bit, (unsigned long *)&link_mode_bmap, 27) {
/* SGMII mode is set */
if (bit == 0)
linkmode_set_bit_array(otx2_sgmii_features,
ARRAY_SIZE(otx2_sgmii_features),
otx2_link_modes);
else
linkmode_set_bit(cgx_link_mode[bit], otx2_link_modes);
}
if (req_mode == OTX2_MODE_ADVERTISED)
linkmode_copy(link_ksettings->link_modes.advertising,
otx2_link_modes);
else
linkmode_copy(link_ksettings->link_modes.supported,
otx2_link_modes);
}
static int otx2_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *cmd)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
struct cgx_fw_data *rsp = NULL;
cmd->base.duplex = pfvf->linfo.full_duplex;
cmd->base.speed = pfvf->linfo.speed;
cmd->base.autoneg = pfvf->linfo.an;
rsp = otx2_get_fwdata(pfvf);
if (IS_ERR(rsp))
return PTR_ERR(rsp);
if (rsp->fwdata.supported_an)
ethtool_link_ksettings_add_link_mode(cmd,
supported,
Autoneg);
otx2_get_link_mode_info(rsp->fwdata.advertised_link_modes,
OTX2_MODE_ADVERTISED, cmd);
otx2_get_fec_info(rsp->fwdata.advertised_fec,
OTX2_MODE_ADVERTISED, cmd);
otx2_get_link_mode_info(rsp->fwdata.supported_link_modes,
OTX2_MODE_SUPPORTED, cmd);
otx2_get_fec_info(rsp->fwdata.supported_fec,
OTX2_MODE_SUPPORTED, cmd);
return 0;
}
static void otx2_get_advertised_mode(const struct ethtool_link_ksettings *cmd,
u64 *mode)
{
u32 bit_pos;
/* Firmware does not support requesting multiple advertised modes
* return first set bit
*/
bit_pos = find_first_bit(cmd->link_modes.advertising,
__ETHTOOL_LINK_MODE_MASK_NBITS);
if (bit_pos != __ETHTOOL_LINK_MODE_MASK_NBITS)
*mode = bit_pos;
}
static int otx2_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *cmd)
{
struct otx2_nic *pf = netdev_priv(netdev);
struct ethtool_link_ksettings cur_ks;
struct cgx_set_link_mode_req *req;
struct mbox *mbox = &pf->mbox;
int err = 0;
memset(&cur_ks, 0, sizeof(struct ethtool_link_ksettings));
if (!ethtool_validate_speed(cmd->base.speed) ||
!ethtool_validate_duplex(cmd->base.duplex))
return -EINVAL;
if (cmd->base.autoneg != AUTONEG_ENABLE &&
cmd->base.autoneg != AUTONEG_DISABLE)
return -EINVAL;
otx2_get_link_ksettings(netdev, &cur_ks);
/* Check requested modes against supported modes by hardware */
if (!linkmode_subset(cmd->link_modes.advertising,
cur_ks.link_modes.supported))
return -EINVAL;
mutex_lock(&mbox->lock);
req = otx2_mbox_alloc_msg_cgx_set_link_mode(&pf->mbox);
if (!req) {
err = -ENOMEM;
goto end;
}
req->args.speed = cmd->base.speed;
/* firmware expects 1 for half duplex and 0 for full duplex
* hence inverting
*/
req->args.duplex = cmd->base.duplex ^ 0x1;
req->args.an = cmd->base.autoneg;
otx2_get_advertised_mode(cmd, &req->args.mode);
err = otx2_sync_mbox_msg(&pf->mbox);
end:
mutex_unlock(&mbox->lock);
return err;
}
static const struct ethtool_ops otx2_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
.get_link = otx2_get_link,
.get_drvinfo = otx2_get_drvinfo,
.get_strings = otx2_get_strings,
.get_ethtool_stats = otx2_get_ethtool_stats,
.get_sset_count = otx2_get_sset_count,
.set_channels = otx2_set_channels,
.get_channels = otx2_get_channels,
.get_ringparam = otx2_get_ringparam,
.set_ringparam = otx2_set_ringparam,
.get_coalesce = otx2_get_coalesce,
.set_coalesce = otx2_set_coalesce,
.get_rxnfc = otx2_get_rxnfc,
.set_rxnfc = otx2_set_rxnfc,
.get_rxfh_key_size = otx2_get_rxfh_key_size,
.get_rxfh_indir_size = otx2_get_rxfh_indir_size,
.get_rxfh = otx2_get_rxfh,
.set_rxfh = otx2_set_rxfh,
.get_rxfh_context = otx2_get_rxfh_context,
.set_rxfh_context = otx2_set_rxfh_context,
.get_msglevel = otx2_get_msglevel,
.set_msglevel = otx2_set_msglevel,
.get_pauseparam = otx2_get_pauseparam,
.set_pauseparam = otx2_set_pauseparam,
.get_ts_info = otx2_get_ts_info,
.get_fecparam = otx2_get_fecparam,
.set_fecparam = otx2_set_fecparam,
.get_link_ksettings = otx2_get_link_ksettings,
.set_link_ksettings = otx2_set_link_ksettings,
};
void otx2_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &otx2_ethtool_ops;
}
/* VF's ethtool APIs */
static void otx2vf_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct otx2_nic *vf = netdev_priv(netdev);
strlcpy(info->driver, DRV_VF_NAME, sizeof(info->driver));
strlcpy(info->bus_info, pci_name(vf->pdev), sizeof(info->bus_info));
}
static void otx2vf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
{
struct otx2_nic *vf = netdev_priv(netdev);
int stats;
if (sset != ETH_SS_STATS)
return;
for (stats = 0; stats < otx2_n_dev_stats; stats++) {
memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
for (stats = 0; stats < otx2_n_drv_stats; stats++) {
memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
otx2_get_qset_strings(vf, &data, 0);
strcpy(data, "reset_count");
data += ETH_GSTRING_LEN;
}
static void otx2vf_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct otx2_nic *vf = netdev_priv(netdev);
int stat;
otx2_get_dev_stats(vf);
for (stat = 0; stat < otx2_n_dev_stats; stat++)
*(data++) = ((u64 *)&vf->hw.dev_stats)
[otx2_dev_stats[stat].index];
for (stat = 0; stat < otx2_n_drv_stats; stat++)
*(data++) = atomic_read(&((atomic_t *)&vf->hw.drv_stats)
[otx2_drv_stats[stat].index]);
otx2_get_qset_stats(vf, stats, &data);
*(data++) = vf->reset_count;
}
static int otx2vf_get_sset_count(struct net_device *netdev, int sset)
{
struct otx2_nic *vf = netdev_priv(netdev);
int qstats_count;
if (sset != ETH_SS_STATS)
return -EINVAL;
qstats_count = otx2_n_queue_stats *
(vf->hw.rx_queues + vf->hw.tx_queues);
return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + 1;
}
static int otx2vf_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *cmd)
{
struct otx2_nic *pfvf = netdev_priv(netdev);
if (is_otx2_lbkvf(pfvf->pdev)) {
cmd->base.duplex = DUPLEX_FULL;
cmd->base.speed = SPEED_100000;
} else {
return otx2_get_link_ksettings(netdev, cmd);
}
return 0;
}
static const struct ethtool_ops otx2vf_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
.get_link = otx2_get_link,
.get_drvinfo = otx2vf_get_drvinfo,
.get_strings = otx2vf_get_strings,
.get_ethtool_stats = otx2vf_get_ethtool_stats,
.get_sset_count = otx2vf_get_sset_count,
.set_channels = otx2_set_channels,
.get_channels = otx2_get_channels,
.get_rxnfc = otx2_get_rxnfc,
.set_rxnfc = otx2_set_rxnfc,
.get_rxfh_key_size = otx2_get_rxfh_key_size,
.get_rxfh_indir_size = otx2_get_rxfh_indir_size,
.get_rxfh = otx2_get_rxfh,
.set_rxfh = otx2_set_rxfh,
.get_rxfh_context = otx2_get_rxfh_context,
.set_rxfh_context = otx2_set_rxfh_context,
.get_ringparam = otx2_get_ringparam,
.set_ringparam = otx2_set_ringparam,
.get_coalesce = otx2_get_coalesce,
.set_coalesce = otx2_set_coalesce,
.get_msglevel = otx2_get_msglevel,
.set_msglevel = otx2_set_msglevel,
.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)
{
netdev->ethtool_ops = &otx2vf_ethtool_ops;
}
EXPORT_SYMBOL(otx2vf_set_ethtool_ops);