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sfxge: add statistics for each Tx queue

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Sponsored by:   Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D2082
This commit is contained in:
Andrew Rybchenko 2015-03-23 15:49:11 +00:00
parent a411fe4e80
commit f6222d7bd0
1 changed files with 49 additions and 19 deletions
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68
sys/dev/sfxge/sfxge_tx.c
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@ -109,6 +109,26 @@ SYSCTL_INT(_hw_sfxge, OID_AUTO, tx_dpl_put_max, CTLFLAG_RDTUN,
"Maximum number of any packets in deferred packet put-list");
static const struct {
const char *name;
size_t offset;
} sfxge_tx_stats[] = {
#define SFXGE_TX_STAT(name, member) \
{ #name, offsetof(struct sfxge_txq, member) }
SFXGE_TX_STAT(tso_bursts, tso_bursts),
SFXGE_TX_STAT(tso_packets, tso_packets),
SFXGE_TX_STAT(tso_long_headers, tso_long_headers),
SFXGE_TX_STAT(tso_pdrop_too_many, tso_pdrop_too_many),
SFXGE_TX_STAT(tso_pdrop_no_rsrc, tso_pdrop_no_rsrc),
SFXGE_TX_STAT(tx_collapses, collapses),
SFXGE_TX_STAT(tx_drops, drops),
SFXGE_TX_STAT(tx_get_overflow, get_overflow),
SFXGE_TX_STAT(tx_get_non_tcp_overflow, get_non_tcp_overflow),
SFXGE_TX_STAT(tx_put_overflow, put_overflow),
SFXGE_TX_STAT(tx_netdown_drops, netdown_drops),
};
/* Forward declarations. */
static void sfxge_tx_qdpl_service(struct sfxge_txq *txq);
static void sfxge_tx_qlist_post(struct sfxge_txq *txq);
@ -1259,6 +1279,30 @@ fail:
return (rc);
}
static int
sfxge_txq_stat_init(struct sfxge_txq *txq, struct sysctl_oid *txq_node)
{
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(txq->sc->dev);
struct sysctl_oid *stat_node;
unsigned int id;
stat_node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(txq_node), OID_AUTO,
"stats", CTLFLAG_RD, NULL,
"Tx queue statistics");
if (stat_node == NULL)
return (ENOMEM);
for (id = 0; id < nitems(sfxge_tx_stats); id++) {
SYSCTL_ADD_ULONG(
ctx, SYSCTL_CHILDREN(stat_node), OID_AUTO,
sfxge_tx_stats[id].name, CTLFLAG_RD | CTLFLAG_STATS,
(unsigned long *)((caddr_t)txq + sfxge_tx_stats[id].offset),
"");
}
return (0);
}
/**
* Destroy a transmit queue.
*/
@ -1412,6 +1456,10 @@ sfxge_tx_qinit(struct sfxge_softc *sc, unsigned int txq_index,
"put_hiwat", CTLFLAG_RD | CTLFLAG_STATS,
&stdp->std_put_hiwat, 0, "");
rc = sfxge_txq_stat_init(txq, txq_node);
if (rc != 0)
goto fail_txq_stat_init;
txq->type = type;
txq->evq_index = evq_index;
txq->txq_index = txq_index;
@ -1419,6 +1467,7 @@ sfxge_tx_qinit(struct sfxge_softc *sc, unsigned int txq_index,
return (0);
fail_txq_stat_init:
fail_dpl_node:
fail_tx_dpl_put_max:
fail_tx_dpl_get_max:
@ -1437,25 +1486,6 @@ fail:
return (rc);
}
static const struct {
const char *name;
size_t offset;
} sfxge_tx_stats[] = {
#define SFXGE_TX_STAT(name, member) \
{ #name, offsetof(struct sfxge_txq, member) }
SFXGE_TX_STAT(tso_bursts, tso_bursts),
SFXGE_TX_STAT(tso_packets, tso_packets),
SFXGE_TX_STAT(tso_long_headers, tso_long_headers),
SFXGE_TX_STAT(tso_pdrop_too_many, tso_pdrop_too_many),
SFXGE_TX_STAT(tso_pdrop_no_rsrc, tso_pdrop_no_rsrc),
SFXGE_TX_STAT(tx_collapses, collapses),
SFXGE_TX_STAT(tx_drops, drops),
SFXGE_TX_STAT(tx_get_overflow, get_overflow),
SFXGE_TX_STAT(tx_get_non_tcp_overflow, get_non_tcp_overflow),
SFXGE_TX_STAT(tx_put_overflow, put_overflow),
SFXGE_TX_STAT(tx_netdown_drops, netdown_drops),
};
static int
sfxge_tx_stat_handler(SYSCTL_HANDLER_ARGS)
{