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eth: fbnic: add ethtool timestamping statistics

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Add counters of packets with HW timestamps requests and lost timestamps
with no associated skbs. Use ethtool interface to report these counters.

Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Vadim Fedorenko
2024-10-08 11:14:36 -07:00
committed by Paolo Abeni
parent ad3d9f8bc6
commit 96f358f75d
3 changed files with 34 additions and 1 deletions
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24
drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
View File

@@ -93,9 +93,33 @@ fbnic_get_eth_mac_stats(struct net_device *netdev,
&mac_stats->eth_mac.FrameTooLongErrors);
}
static void fbnic_get_ts_stats(struct net_device *netdev,
struct ethtool_ts_stats *ts_stats)
{
struct fbnic_net *fbn = netdev_priv(netdev);
u64 ts_packets, ts_lost;
struct fbnic_ring *ring;
unsigned int start;
int i;
ts_stats->pkts = fbn->tx_stats.ts_packets;
ts_stats->lost = fbn->tx_stats.ts_lost;
for (i = 0; i < fbn->num_tx_queues; i++) {
ring = fbn->tx[i];
do {
start = u64_stats_fetch_begin(&ring->stats.syncp);
ts_packets = ring->stats.ts_packets;
ts_lost = ring->stats.ts_lost;
} while (u64_stats_fetch_retry(&ring->stats.syncp, start));
ts_stats->pkts += ts_packets;
ts_stats->lost += ts_lost;
}
}
static const struct ethtool_ops fbnic_ethtool_ops = {
.get_drvinfo = fbnic_get_drvinfo,
.get_ts_info = fbnic_get_ts_info,
.get_ts_stats = fbnic_get_ts_stats,
.get_eth_mac_stats = fbnic_get_eth_mac_stats,
};

9
drivers/net/ethernet/meta/fbnic/fbnic_txrx.c
View File

@@ -385,7 +385,7 @@ static void fbnic_clean_twq0(struct fbnic_napi_vector *nv, int napi_budget,
struct fbnic_ring *ring, bool discard,
unsigned int hw_head)
{
u64 total_bytes = 0, total_packets = 0;
u64 total_bytes = 0, total_packets = 0, ts_lost = 0;
unsigned int head = ring->head;
struct netdev_queue *txq;
unsigned int clean_desc;
@@ -404,6 +404,7 @@ static void fbnic_clean_twq0(struct fbnic_napi_vector *nv, int napi_budget,
FBNIC_XMIT_CB(skb)->hw_head = hw_head;
if (likely(!discard))
break;
ts_lost++;
}
ring->tx_buf[head] = NULL;
@@ -443,6 +444,7 @@ static void fbnic_clean_twq0(struct fbnic_napi_vector *nv, int napi_budget,
if (unlikely(discard)) {
u64_stats_update_begin(&ring->stats.syncp);
ring->stats.dropped += total_packets;
ring->stats.ts_lost += ts_lost;
u64_stats_update_end(&ring->stats.syncp);
netdev_tx_completed_queue(txq, total_packets, total_bytes);
@@ -504,6 +506,9 @@ static void fbnic_clean_tsq(struct fbnic_napi_vector *nv,
}
skb_tstamp_tx(skb, &hwtstamp);
u64_stats_update_begin(&ring->stats.syncp);
ring->stats.ts_packets++;
u64_stats_update_end(&ring->stats.syncp);
}
static void fbnic_page_pool_init(struct fbnic_ring *ring, unsigned int idx,
@@ -1060,6 +1065,8 @@ static void fbnic_aggregate_ring_tx_counters(struct fbnic_net *fbn,
fbn->tx_stats.bytes += stats->bytes;
fbn->tx_stats.packets += stats->packets;
fbn->tx_stats.dropped += stats->dropped;
fbn->tx_stats.ts_lost += stats->ts_lost;
fbn->tx_stats.ts_packets += stats->ts_packets;
}
static void fbnic_remove_tx_ring(struct fbnic_net *fbn,

2
drivers/net/ethernet/meta/fbnic/fbnic_txrx.h
View File

@@ -57,6 +57,8 @@ struct fbnic_queue_stats {
u64 packets;
u64 bytes;
u64 dropped;
u64 ts_packets;
u64 ts_lost;
struct u64_stats_sync syncp;
};