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| author | arybchik <arybchik@FreeBSD.org> | 2015-02-24 06:09:31 +0000 |
|---|---|---|
| committer | arybchik <arybchik@FreeBSD.org> | 2015-02-24 06:09:31 +0000 |
| commit | fa8630798cb68d399f17a2202982f0ce4ce6adbb (patch) | |
| tree | 59ad3e453271534fdc88226f56fccec2630bef6d | |
| parent | 207c0d5532afdd0c2e9620c80b9d804f02769757 (diff) | |
| download | FreeBSD-src-fa8630798cb68d399f17a2202982f0ce4ce6adbb.zip FreeBSD-src-fa8630798cb68d399f17a2202982f0ce4ce6adbb.tar.gz | |
sfxge: add put-list high watermark
It is interesting to know how long put-list grows.
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
| -rw-r--r-- | sys/dev/sfxge/sfxge_tx.c | 7 | ||||
| -rw-r--r-- | sys/dev/sfxge/sfxge_tx.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/sys/dev/sfxge/sfxge_tx.c b/sys/dev/sfxge/sfxge_tx.c index a7263c8..7622086 100644 --- a/sys/dev/sfxge/sfxge_tx.c +++ b/sys/dev/sfxge/sfxge_tx.c @@ -214,6 +214,9 @@ sfxge_tx_qdpl_swizzle(struct sfxge_txq *txq) count++; } while (mbuf != NULL); + if (count > stdp->std_put_hiwat) + stdp->std_put_hiwat = count; + /* Append the reversed put list to the get list. */ KASSERT(*get_tailp == NULL, ("*get_tailp != NULL")); *stdp->std_getp = get_next; @@ -1485,6 +1488,10 @@ sfxge_tx_qinit(struct sfxge_softc *sc, unsigned int txq_index, SYSCTL_CHILDREN(txq_node), OID_AUTO, "dpl_get_hiwat", CTLFLAG_RD | CTLFLAG_STATS, &stdp->std_get_hiwat, 0, ""); + SYSCTL_ADD_UINT(device_get_sysctl_ctx(sc->dev), + SYSCTL_CHILDREN(txq_node), OID_AUTO, + "dpl_put_hiwat", CTLFLAG_RD | CTLFLAG_STATS, + &stdp->std_put_hiwat, 0, ""); #endif txq->type = type; diff --git a/sys/dev/sfxge/sfxge_tx.h b/sys/dev/sfxge/sfxge_tx.h index c7a8c12..38309a3 100644 --- a/sys/dev/sfxge/sfxge_tx.h +++ b/sys/dev/sfxge/sfxge_tx.h @@ -102,6 +102,8 @@ struct sfxge_tx_dpl { * in get list */ unsigned int std_get_hiwat; /* Packets in get list * high watermark */ + unsigned int std_put_hiwat; /* Packets in put list + * high watermark */ }; |
