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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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4
drivers/net/ethernet/sfc/net_driver.h
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@@ -444,6 +444,8 @@ enum efx_sync_events_state {
* @rfs_last_expiry: value of jiffies last time some accelerated RFS filters
* were checked for expiry
* @rfs_expire_index: next accelerated RFS filter ID to check for expiry
* @n_rfs_succeeded: number of successful accelerated RFS filter insertions
* @n_rfs_failed; number of failed accelerated RFS filter insertions
* @filter_work: Work item for efx_filter_rfs_expire()
* @rps_flow_id: Flow IDs of filters allocated for accelerated RFS,
* indexed by filter ID
@@ -497,6 +499,8 @@ struct efx_channel {
unsigned int rfs_filter_count;
unsigned int rfs_last_expiry;
unsigned int rfs_expire_index;
unsigned int n_rfs_succeeded;
unsigned int n_rfs_failed;
struct work_struct filter_work;
#define RPS_FLOW_ID_INVALID 0xFFFFFFFF
u32 *rps_flow_id;