[dpdk-dev] [PATCH v3] lib/librte_vhost: update used->idx when allocation of mbuf fails
Linhaifeng
haifeng.lin at huawei.com
Sat Mar 21 09:41:11 CET 2015
cc changchun.ouyang at intel.com
cc huawei.xie at intel.com
On 2015/3/21 9:47, linhaifeng wrote:
> From: Linhaifeng <haifeng.lin at huawei.com>
>
> When failed to malloc buffer from mempool we just update last_used_idx but
> not used->idx so after many times vhost thought have handle all packets
> but virtio_net thought vhost have not handle all packets and will not
> update avail->idx.
>
> Signed-off-by: Linhaifeng <haifeng.lin at huawei.com>
> ---
> lib/librte_vhost/vhost_rxtx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c
> index 535c7a1..510ffe8 100644
> --- a/lib/librte_vhost/vhost_rxtx.c
> +++ b/lib/librte_vhost/vhost_rxtx.c
> @@ -609,7 +609,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id,
> if (unlikely(m == NULL)) {
> RTE_LOG(ERR, VHOST_DATA,
> "Failed to allocate memory for mbuf.\n");
> - return entry_success;
> + break;
> }
> seg_offset = 0;
> seg_avail = m->buf_len - RTE_PKTMBUF_HEADROOM;
>
--
Regards,
Haifeng
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