From: Stephen Hemminger <stephen@networkplumber.org>
To: longli@linuxonhyperv.com
Cc: "K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
dev@dpdk.org, Long Li <longli@microsoft.com>,
stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 1/4] net/netvsc: move rxbuf_info from per-device to per-queue
Date: Sun, 16 Aug 2020 16:11:03 -0700 [thread overview]
Message-ID: <20200816161103.1e7473a6@hermes.lan> (raw)
In-Reply-To: <1597113194-90208-1-git-send-email-longli@linuxonhyperv.com>
On Mon, 10 Aug 2020 19:33:11 -0700
longli@linuxonhyperv.com wrote:
> From: Long Li <longli@microsoft.com>
>
> netvsc uses rxbuf_info buffer to track received packets attached via
> rte_pktmbuf_attach_extbuf() and ack the host based on usage count. It uses
> the transaction_id in the VMBus packet to locate where to use memory in the
> rxbuf_info.
>
> This is not correct in multiple channel setup, as different channels may
> return idential transaction_ids at a time, and may corrupt the rxbuf_info
> buffer.
>
> Fix this by defining rxbuf_info for each queue.
>
> Fixes: 4e9c73e96 ("net/netvsc: add Hyper-V network device")
> Cc: stable@dpdk.org
> Signed-off-by: Long Li <longli@microsoft.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
next prev parent reply other threads:[~2020-08-16 23:11 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-11 2:33 longli
2020-08-11 2:33 ` [dpdk-dev] [PATCH 2/4] bus/vmbus: remove vmbus_send_interrupt longli
2020-08-11 15:31 ` Stephen Hemminger
2020-08-11 2:33 ` [dpdk-dev] [PATCH 3/4] net/netvsc: mark chim_index as NVS_CHIM_IDX_INVALID after freeing it longli
2020-08-11 15:32 ` Stephen Hemminger
2020-08-11 2:33 ` [dpdk-dev] [PATCH 4/4] net/netvsc: check for overflow on packet info from host longli
2020-08-11 15:42 ` Stephen Hemminger
2020-10-27 17:10 ` Luca Boccassi
2020-10-27 23:07 ` Ferruh Yigit
2020-10-28 11:08 ` [dpdk-dev] [dpdk-stable] " Luca Boccassi
2020-10-29 8:43 ` Ferruh Yigit
2020-08-16 23:11 ` Stephen Hemminger [this message]
2020-08-19 15:36 ` [dpdk-dev] [PATCH 1/4] net/netvsc: move rxbuf_info from per-device to per-queue Ferruh Yigit
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