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dpif-netdev: Add a partial HWOL PMD statistic.

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It is possible for packets traversing the userspace datapath to match a
flow before hitting on EMC by using a mark ID provided by a NIC. Add a
PMD statistic for this hit.

Signed-off-by: Cian Ferriter <cian.ferriter@intel.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Cian Ferriter
2021-07-09 15:58:20 +00:00
committed by Ian Stokes
parent 3f86fdf5ce
commit d76a719a7a
7 changed files with 21 additions and 4 deletions
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3
lib/dpif-netdev-avx512.c
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@@ -127,6 +127,7 @@ dp_netdev_input_outer_avx512(struct dp_netdev_pmd_thread *pmd,
uint32_t emc_hits = 0;
uint32_t smc_hits = 0;
uint32_t phwol_hits = 0;
/* A 1 bit in this mask indicates a hit, so no DPCLS lookup on the pkt. */
uint32_t hwol_emc_smc_hitmask = 0;
@@ -178,6 +179,7 @@ dp_netdev_input_outer_avx512(struct dp_netdev_pmd_thread *pmd,
rules[i] = &f->cr;
pkt_meta[i].tcp_flags = parse_tcp_flags(packet);
pkt_meta[i].bytes = dp_packet_size(packet);
phwol_hits++;
hwol_emc_smc_hitmask |= (1 << i);
continue;
}
@@ -286,6 +288,7 @@ dp_netdev_input_outer_avx512(struct dp_netdev_pmd_thread *pmd,
/* At this point we don't return error anymore, so commit stats here. */
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_RECV, batch_size);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_PHWOL_HIT, phwol_hits);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_EXACT_HIT, emc_hits);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_SMC_HIT, smc_hits);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_MASKED_HIT,