From: Marvin Liu <yong.liu@intel.com>
To: maxime.coquelin@redhat.com, chenbo.xia@intel.com
Cc: dev@dpdk.org, Marvin Liu <yong.liu@intel.com>, stable@dpdk.org
Subject: [dpdk-dev] [PATCH] vhost: fix packed ring dequeue offloading
Date: Fri, 5 Feb 2021 15:47:58 +0800 [thread overview]
Message-ID: <20210205074758.28278-1-yong.liu@intel.com> (raw)
When vhost doing dequeue offloading, will parse ethernet and l3/l4
header of the packet. Then vhost will set corresponded value in mbuf
attributes. Thus mean offloading action should after packet data copy.
Fixes: 75ed51697820 ("vhost: add packed ring batch dequeue")
Cc: stable@dpdk.org
Signed-off-by: Marvin Liu <yong.liu@intel.com>
diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 730b92e478..0a7d008a91 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -2267,7 +2267,6 @@ vhost_reserve_avail_batch_packed(struct virtio_net *dev,
{
bool wrap = vq->avail_wrap_counter;
struct vring_packed_desc *descs = vq->desc_packed;
- struct virtio_net_hdr *hdr;
uint64_t lens[PACKED_BATCH_SIZE];
uint64_t buf_lens[PACKED_BATCH_SIZE];
uint32_t buf_offset = sizeof(struct virtio_net_hdr_mrg_rxbuf);
@@ -2324,13 +2323,6 @@ vhost_reserve_avail_batch_packed(struct virtio_net *dev,
ids[i] = descs[avail_idx + i].id;
}
- if (virtio_net_with_host_offload(dev)) {
- vhost_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
- hdr = (struct virtio_net_hdr *)(desc_addrs[i]);
- vhost_dequeue_offload(hdr, pkts[i]);
- }
- }
-
return 0;
free_buf:
@@ -2348,6 +2340,7 @@ virtio_dev_tx_batch_packed(struct virtio_net *dev,
{
uint16_t avail_idx = vq->last_avail_idx;
uint32_t buf_offset = sizeof(struct virtio_net_hdr_mrg_rxbuf);
+ struct virtio_net_hdr *hdr;
uintptr_t desc_addrs[PACKED_BATCH_SIZE];
uint16_t ids[PACKED_BATCH_SIZE];
uint16_t i;
@@ -2364,6 +2357,13 @@ virtio_dev_tx_batch_packed(struct virtio_net *dev,
(void *)(uintptr_t)(desc_addrs[i] + buf_offset),
pkts[i]->pkt_len);
+ if (virtio_net_with_host_offload(dev)) {
+ vhost_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
+ hdr = (struct virtio_net_hdr *)(desc_addrs[i]);
+ vhost_dequeue_offload(hdr, pkts[i]);
+ }
+ }
+
if (virtio_net_is_inorder(dev))
vhost_shadow_dequeue_batch_packed_inorder(vq,
ids[PACKED_BATCH_SIZE - 1]);
--
2.17.1
next reply other threads:[~2021-02-05 7:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 7:47 Marvin Liu [this message]
2021-02-09 14:52 ` Maxime Coquelin
2021-02-10 21:05 ` Thomas Monjalon
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