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enic: Report some per queue statistics in ethtool

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Make 'ethtool -S <intf>' output show some per rq/wq statistics that
don't exist in the netdev qstats.

Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Signed-off-by: John Daley <johndale@cisco.com>
Signed-off-by: Satish Kharat <satishkh@cisco.com>
Link: https://patch.msgid.link/20240912005039.10797-5-neescoba@cisco.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nelson Escobar 2024-09-11 17:50:39 -07:00 committed by Jakub Kicinski
parent 77805ddb57
commit bde04d9876
1 changed files with 81 additions and 2 deletions
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83
drivers/net/ethernet/cisco/enic/enic_ethtool.c
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@ -32,6 +32,41 @@ struct enic_stat {
.index = offsetof(struct vnic_gen_stats, stat) / sizeof(u64)\
}
#define ENIC_PER_RQ_STAT(stat) { \
.name = "rq[%d]_"#stat, \
.index = offsetof(struct enic_rq_stats, stat) / sizeof(u64) \
}
#define ENIC_PER_WQ_STAT(stat) { \
.name = "wq[%d]_"#stat, \
.index = offsetof(struct enic_wq_stats, stat) / sizeof(u64) \
}
static const struct enic_stat enic_per_rq_stats[] = {
ENIC_PER_RQ_STAT(l4_rss_hash),
ENIC_PER_RQ_STAT(l3_rss_hash),
ENIC_PER_RQ_STAT(csum_unnecessary_encap),
ENIC_PER_RQ_STAT(vlan_stripped),
ENIC_PER_RQ_STAT(napi_complete),
ENIC_PER_RQ_STAT(napi_repoll),
ENIC_PER_RQ_STAT(no_skb),
ENIC_PER_RQ_STAT(desc_skip),
};
#define NUM_ENIC_PER_RQ_STATS ARRAY_SIZE(enic_per_rq_stats)
static const struct enic_stat enic_per_wq_stats[] = {
ENIC_PER_WQ_STAT(encap_tso),
ENIC_PER_WQ_STAT(encap_csum),
ENIC_PER_WQ_STAT(add_vlan),
ENIC_PER_WQ_STAT(cq_work),
ENIC_PER_WQ_STAT(cq_bytes),
ENIC_PER_WQ_STAT(null_pkt),
ENIC_PER_WQ_STAT(skb_linear_fail),
ENIC_PER_WQ_STAT(desc_full_awake),
};
#define NUM_ENIC_PER_WQ_STATS ARRAY_SIZE(enic_per_wq_stats)
static const struct enic_stat enic_tx_stats[] = {
ENIC_TX_STAT(tx_frames_ok),
ENIC_TX_STAT(tx_unicast_frames_ok),
@ -143,7 +178,9 @@ static void enic_get_drvinfo(struct net_device *netdev,
static void enic_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
struct enic *enic = netdev_priv(netdev);
unsigned int i;
unsigned int j;
switch (stringset) {
case ETH_SS_STATS:
@ -159,6 +196,20 @@ static void enic_get_strings(struct net_device *netdev, u32 stringset,
memcpy(data, enic_gen_stats[i].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
for (i = 0; i < enic->rq_count; i++) {
for (j = 0; j < NUM_ENIC_PER_RQ_STATS; j++) {
snprintf(data, ETH_GSTRING_LEN,
enic_per_rq_stats[j].name, i);
data += ETH_GSTRING_LEN;
}
}
for (i = 0; i < enic->wq_count; i++) {
for (j = 0; j < NUM_ENIC_PER_WQ_STATS; j++) {
snprintf(data, ETH_GSTRING_LEN,
enic_per_wq_stats[j].name, i);
data += ETH_GSTRING_LEN;
}
}
break;
}
}
@ -244,10 +295,19 @@ err_out:
static int enic_get_sset_count(struct net_device *netdev, int sset)
{
struct enic *enic = netdev_priv(netdev);
unsigned int n_per_rq_stats;
unsigned int n_per_wq_stats;
unsigned int n_stats;
switch (sset) {
case ETH_SS_STATS:
return NUM_ENIC_TX_STATS + NUM_ENIC_RX_STATS +
NUM_ENIC_GEN_STATS;
n_per_rq_stats = NUM_ENIC_PER_RQ_STATS * enic->rq_count;
n_per_wq_stats = NUM_ENIC_PER_WQ_STATS * enic->wq_count;
n_stats = NUM_ENIC_TX_STATS + NUM_ENIC_RX_STATS +
NUM_ENIC_GEN_STATS +
n_per_rq_stats + n_per_wq_stats;
return n_stats;
default:
return -EOPNOTSUPP;
}
@ -259,6 +319,7 @@ static void enic_get_ethtool_stats(struct net_device *netdev,
struct enic *enic = netdev_priv(netdev);
struct vnic_stats *vstats;
unsigned int i;
unsigned int j;
int err;
err = enic_dev_stats_dump(enic, &vstats);
@ -275,6 +336,24 @@ static void enic_get_ethtool_stats(struct net_device *netdev,
*(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index];
for (i = 0; i < NUM_ENIC_GEN_STATS; i++)
*(data++) = ((u64 *)&enic->gen_stats)[enic_gen_stats[i].index];
for (i = 0; i < enic->rq_count; i++) {
struct enic_rq_stats *rqstats = &enic->rq_stats[i];
int index;
for (j = 0; j < NUM_ENIC_PER_RQ_STATS; j++) {
index = enic_per_rq_stats[j].index;
*(data++) = ((u64 *)rqstats)[index];
}
}
for (i = 0; i < enic->wq_count; i++) {
struct enic_wq_stats *wqstats = &enic->wq_stats[i];
int index;
for (j = 0; j < NUM_ENIC_PER_WQ_STATS; j++) {
index = enic_per_wq_stats[j].index;
*(data++) = ((u64 *)wqstats)[index];
}
}
}
static u32 enic_get_msglevel(struct net_device *netdev)