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sfc: add statistics for ARFS

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Report the number of successful and failed insertions, and also the
 current count of filters, to aid in tuning e.g. rps_flow_cnt.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Edward Cree
2019-11-22 17:57:27 +00:00
committed by Jakub Kicinski
parent 0aa6608dae
commit ca70bd423f
3 changed files with 12 additions and 0 deletions
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2
drivers/net/ethernet/sfc/rx.c
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@@ -1032,6 +1032,7 @@ static void efx_filter_rfs_work(struct work_struct *data)
req->spec.rem_host, ntohs(req->spec.rem_port),
req->spec.loc_host, ntohs(req->spec.loc_port),
req->rxq_index, req->flow_id, rc, arfs_id);
channel->n_rfs_succeeded++;
} else {
if (req->spec.ether_type == htons(ETH_P_IP))
netif_dbg(efx, rx_status, efx->net_dev,
@@ -1047,6 +1048,7 @@ static void efx_filter_rfs_work(struct work_struct *data)
req->spec.rem_host, ntohs(req->spec.rem_port),
req->spec.loc_host, ntohs(req->spec.loc_port),
req->rxq_index, req->flow_id, rc, arfs_id);
channel->n_rfs_failed++;
/* We're overloading the NIC's filter tables, so let's do a
* chunk of extra expiry work.
*/