svn commit: r296381 - head/sys/dev/hyperv/netvsc

[Sepherosa Ziehau]

Author: sephe
Date: Fri Mar  4 07:07:42 2016
New Revision: 296381
URL: https://svnweb.freebsd.org/changeset/base/296381

Log:
  hyperv/hn: Add per-TX ring stats for # of transmitted packets
  
  MFC after:	2 weeks
  Sponsored by:	Microsoft OSTC

Modified:
  head/sys/dev/hyperv/netvsc/hv_net_vsc.h
  head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c

Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.h
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_net_vsc.h	Fri Mar  4 07:00:37 2016	(r296380)
+++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h	Fri Mar  4 07:07:42 2016	(r296381)
@@ -1208,6 +1208,7 @@ struct hn_tx_ring {
 	u_long		hn_txdma_failed;
 	u_long		hn_tx_collapsed;
 	u_long		hn_tx_chimney;
+	u_long		hn_pkts;
 
 	/* Rarely used stuffs */
 	struct hn_txdesc *hn_txdesc;

Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c	Fri Mar  4 07:00:37 2016	(r296380)
+++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c	Fri Mar  4 07:07:42 2016	(r296381)
@@ -1021,6 +1021,7 @@ again:
 			if (txd->m->m_flags & M_MCAST)
 				if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
 		}
+		txr->hn_pkts++;
 	}
 	hn_txdesc_put(txr, txd);
 
@@ -2402,6 +2403,9 @@ hn_create_tx_ring(struct hn_softc *sc, i
 				    CTLFLAG_RD, &txr->hn_oactive, 0,
 				    "over active");
 			}
+			SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "packets",
+			    CTLFLAG_RW, &txr->hn_pkts,
+			    "# of packets transmitted");
 		}
 	}