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authorDavid Brown <davidb@codeaurora.org>2011-03-17 01:13:16 -0400
committerDavid Brown <davidb@codeaurora.org>2011-03-17 01:13:16 -0400
commit92c260f755c42337c550d8ac1f8ccd1b32bffb20 (patch)
tree6d04fefc1adeecabfb2b00c201e0db78fa2b5529 /drivers/net/virtio_net.c
parent8e76a80960bf06c245160a484d5a363ca6b520bb (diff)
parent05e34754518b6a90d5c392790c032575fab12d66 (diff)
Merge remote branch 'rmk/for-linus' into for-linus
* rmk/for-linus: (1557 commits) ARM: 6806/1: irq: introduce entry and exit functions for chained handlers ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas ARM: 6747/1: P2V: Thumb2 support ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9 ARM: 6772/1: errata: possible fault MMU translations following an ASID switch ARM: 6776/1: mach-ux500: activate fix for errata 753970 ARM: 6794/1: SPEAr: Append UL to device address macros. ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files. ARM: 6681/1: SPEAr: add debugfs support to clk API ARM: 6703/1: SPEAr: update clk API support ARM: 6679/1: SPEAr: make clk API functions more generic ARM: 6737/1: SPEAr: formalized timer support ... Conflicts: arch/arm/mach-msm/board-msm7x27.c arch/arm/mach-msm/board-msm7x30.c arch/arm/mach-msm/board-qsd8x50.c arch/arm/mach-msm/board-sapphire.c arch/arm/mach-msm/include/mach/memory.h
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 90a23e410d1b..82dba5aaf423 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -446,6 +446,20 @@ static void skb_recv_done(struct virtqueue *rvq)
446 } 446 }
447} 447}
448 448
449static void virtnet_napi_enable(struct virtnet_info *vi)
450{
451 napi_enable(&vi->napi);
452
453 /* If all buffers were filled by other side before we napi_enabled, we
454 * won't get another interrupt, so process any outstanding packets
455 * now. virtnet_poll wants re-enable the queue, so we disable here.
456 * We synchronize against interrupts via NAPI_STATE_SCHED */
457 if (napi_schedule_prep(&vi->napi)) {
458 virtqueue_disable_cb(vi->rvq);
459 __napi_schedule(&vi->napi);
460 }
461}
462
449static void refill_work(struct work_struct *work) 463static void refill_work(struct work_struct *work)
450{ 464{
451 struct virtnet_info *vi; 465 struct virtnet_info *vi;
@@ -454,7 +468,7 @@ static void refill_work(struct work_struct *work)
454 vi = container_of(work, struct virtnet_info, refill.work); 468 vi = container_of(work, struct virtnet_info, refill.work);
455 napi_disable(&vi->napi); 469 napi_disable(&vi->napi);
456 still_empty = !try_fill_recv(vi, GFP_KERNEL); 470 still_empty = !try_fill_recv(vi, GFP_KERNEL);
457 napi_enable(&vi->napi); 471 virtnet_napi_enable(vi);
458 472
459 /* In theory, this can happen: if we don't get any buffers in 473 /* In theory, this can happen: if we don't get any buffers in
460 * we will *never* try to fill again. */ 474 * we will *never* try to fill again. */
@@ -638,16 +652,7 @@ static int virtnet_open(struct net_device *dev)
638{ 652{
639 struct virtnet_info *vi = netdev_priv(dev); 653 struct virtnet_info *vi = netdev_priv(dev);
640 654
641 napi_enable(&vi->napi); 655 virtnet_napi_enable(vi);
642
643 /* If all buffers were filled by other side before we napi_enabled, we
644 * won't get another interrupt, so process any outstanding packets
645 * now. virtnet_poll wants re-enable the queue, so we disable here.
646 * We synchronize against interrupts via NAPI_STATE_SCHED */
647 if (napi_schedule_prep(&vi->napi)) {
648 virtqueue_disable_cb(vi->rvq);
649 __napi_schedule(&vi->napi);
650 }
651 return 0; 656 return 0;
652} 657}
653 658