svn commit: r295305 - head/sys/dev/hyperv/netvsc

[Sepherosa Ziehau]

Author: sephe
Date: Fri Feb  5 05:44:31 2016
New Revision: 295305
URL: https://svnweb.freebsd.org/changeset/base/295305

Log:
  hyperv/hn: Move LRO flush to the channel processing rollup
  
  This significantly increases LRO aggregation ratio when there are
  large amount of connections (improves reception performance a lot).
  
  Reviewed by:	adrian
  Approved by:	adrian (mentor)
  MFC after:	1 week
  Sponsored by:	Microsoft OSTC
  Differential Revision:	https://reviews.freebsd.org/D5167

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

Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c	Fri Feb  5 05:38:01 2016	(r295304)
+++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c	Fri Feb  5 05:44:31 2016	(r295305)
@@ -764,6 +764,15 @@ void
 netvsc_channel_rollup(struct hv_device *device_ctx)
 {
 	struct hn_softc *sc = device_get_softc(device_ctx->device);
+#if defined(INET) || defined(INET6)
+	struct lro_ctrl *lro = &sc->hn_lro;
+	struct lro_entry *queued;
+
+	while ((queued = SLIST_FIRST(&lro->lro_active)) != NULL) {
+		SLIST_REMOVE_HEAD(&lro->lro_active, next);
+		tcp_lro_flush(lro, queued);
+	}
+#endif
 
 	if (!sc->hn_txeof)
 		return;
@@ -1338,18 +1347,8 @@ skip:
 }
 
 void
-netvsc_recv_rollup(struct hv_device *device_ctx)
+netvsc_recv_rollup(struct hv_device *device_ctx __unused)
 {
-#if defined(INET) || defined(INET6)
-	hn_softc_t *sc = device_get_softc(device_ctx->device);
-	struct lro_ctrl *lro = &sc->hn_lro;
-	struct lro_entry *queued;
-
-	while ((queued = SLIST_FIRST(&lro->lro_active)) != NULL) {
-		SLIST_REMOVE_HEAD(&lro->lro_active, next);
-		tcp_lro_flush(lro, queued);
-	}
-#endif
 }
 
 /*