Author: np
Date: Tue Jan 29 20:59:22 2013
New Revision: 246093
URL: http://svnweb.freebsd.org/changeset/base/246093
Log:
Provide a statistic to track the number of drops in each of the port's
txq's buf_ring. The aggregate for all the queues of a port is already
provided in ifnet->if_snd.ifq_drops.
MFC after: 3 days.
Modified:
head/sys/dev/cxgbe/t4_main.c
head/sys/dev/cxgbe/t4_sge.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Tue Jan 29 20:28:11 2013
(r246092)
+++ head/sys/dev/cxgbe/t4_main.c Tue Jan 29 20:59:22 2013
(r246093)
@@ -5533,6 +5533,7 @@ t4_ioctl(struct cdev *dev, unsigned long
txq->txpkt_wrs = 0;
txq->txpkts_wrs = 0;
txq->txpkts_pkts = 0;
+ txq->br->br_drops = 0;
txq->no_dmamap = 0;
txq->no_desc = 0;
}
Modified: head/sys/dev/cxgbe/t4_sge.c
==============================================================================
--- head/sys/dev/cxgbe/t4_sge.c Tue Jan 29 20:28:11 2013 (r246092)
+++ head/sys/dev/cxgbe/t4_sge.c Tue Jan 29 20:59:22 2013 (r246093)
@@ -2362,6 +2362,8 @@ alloc_txq(struct port_info *pi, struct s
SYSCTL_ADD_UQUAD(&pi->ctx, children, OID_AUTO, "txpkts_pkts",
CTLFLAG_RD,
&txq->txpkts_pkts, "# of frames tx'd using txpkts work requests");
+ SYSCTL_ADD_UQUAD(&pi->ctx, children, OID_AUTO, "br_drops", CTLFLAG_RD,
+ &txq->br->br_drops, "# of drops in the buf_ring for this queue");
SYSCTL_ADD_UINT(&pi->ctx, children, OID_AUTO, "no_dmamap", CTLFLAG_RD,
&txq->no_dmamap, 0, "# of times txq ran out of DMA maps");
SYSCTL_ADD_UINT(&pi->ctx, children, OID_AUTO, "no_desc", CTLFLAG_RD,
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