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dpif-netdev: Count exact match cache hits.

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We used to count exact match cache hits and masked classifier hits
together. This commit splits the DP_STAT_HIT counter into two.
This change will be used by future commits.

Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
This commit is contained in:
Daniele Di Proietto
2015-04-07 20:02:15 +01:00
committed by Ethan Jackson
parent eb94da30ae
commit abcf3ef4c3
1 changed files with 10 additions and 6 deletions
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16
lib/dpif-netdev.c
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@@ -220,7 +220,8 @@ static struct dp_netdev_port *dp_netdev_lookup_port(const struct dp_netdev *dp,
odp_port_t);
enum dp_stat_type {
DP_STAT_HIT, /* Packets that matched in the flow table. */
DP_STAT_EXACT_HIT, /* Packets that had an exact match (emc). */
DP_STAT_MASKED_HIT, /* Packets that matched in the flow table. */
DP_STAT_MISS, /* Packets that did not match. */
DP_STAT_LOST, /* Packets not passed up to the client. */
DP_N_STATS
@@ -772,7 +773,9 @@ dpif_netdev_get_stats(const struct dpif *dpif, struct dpif_dp_stats *stats)
unsigned long long n;
stats->n_flows += cmap_count(&pmd->flow_table);
atomic_read_relaxed(&pmd->stats.n[DP_STAT_HIT], &n);
atomic_read_relaxed(&pmd->stats.n[DP_STAT_MASKED_HIT], &n);
stats->n_hit += n;
atomic_read_relaxed(&pmd->stats.n[DP_STAT_EXACT_HIT], &n);
stats->n_hit += n;
atomic_read_relaxed(&pmd->stats.n[DP_STAT_MISS], &n);
stats->n_missed += n;
@@ -2810,7 +2813,8 @@ packet_batch_init(struct packet_batch *batch, struct dp_netdev_flow *flow)
static inline void
packet_batch_execute(struct packet_batch *batch,
struct dp_netdev_pmd_thread *pmd)
struct dp_netdev_pmd_thread *pmd,
enum dp_stat_type hit_type)
{
struct dp_netdev_actions *actions;
struct dp_netdev_flow *flow = batch->flow;
@@ -2823,7 +2827,7 @@ packet_batch_execute(struct packet_batch *batch,
dp_netdev_execute_actions(pmd, batch->packets, batch->packet_count, true,
actions->actions, actions->size);
dp_netdev_count_packet(pmd, DP_STAT_HIT, batch->packet_count);
dp_netdev_count_packet(pmd, hit_type, batch->packet_count);
}
static inline bool
@@ -2914,7 +2918,7 @@ emc_processing(struct dp_netdev_pmd_thread *pmd, struct dp_packet **packets,
}
for (i = 0; i < n_batches; i++) {
packet_batch_execute(&batches[i], pmd);
packet_batch_execute(&batches[i], pmd, DP_STAT_EXACT_HIT);
}
return notfound_cnt;
@@ -3051,7 +3055,7 @@ fast_path_processing(struct dp_netdev_pmd_thread *pmd,
}
for (i = 0; i < n_batches; i++) {
packet_batch_execute(&batches[i], pmd);
packet_batch_execute(&batches[i], pmd, DP_STAT_MASKED_HIT);
}
}