From: Stephen Hemminger <stephen@networkplumber.org>
To: longli@linuxonhyperv.com
Cc: dev@dpdk.org, Stephen Hemminger <sthemmin@microsoft.com>,
Jonathan Erb <jonathan.erb@banduracyber.com>,
Long Li <longli@microsoft.com>,
stable@dpdk.org
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] bus/vmbus: map to the correct ring buffer addresses for the secondary process
Date: Tue, 31 Aug 2021 10:15:14 -0700 [thread overview]
Message-ID: <20210831101514.2e6d1bba@hermes.local> (raw)
In-Reply-To: <1630389404-13468-1-git-send-email-longli@linuxonhyperv.com>
On Mon, 30 Aug 2021 22:56:44 -0700
longli@linuxonhyperv.com wrote:
> From: Long Li <longli@microsoft.com>
>
> The driver code had wrong assumption that all the addresses to ring buffers
> in the secondary process are the same as those in the primary process. This
> is not always correct as the channels could be mapped to different
> addresses in the secondary process.
>
> Fix this by keeping track of all the mapped addresses from the primary
> process in the shared uio_res, and have second process map to the same
> addresses.
>
> Reported-by: Jonathan Erb <jonathan.erb@banduracyber.com>
> Cc: stable@dpdk.org
> Signed-off-by: Long Li <longli@microsoft.com>
I prefer that messages not get split across lines, but this looks fine.
Fixes: 831dba47bd36 ("bus/vmbus: add Hyper-V virtual bus support")
Acked-by: Stephen Hemminger <sthemmin@microsoft.com>
prev parent reply other threads:[~2021-08-31 17:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-31 5:56 [dpdk-stable] " longli
2021-08-31 17:15 ` Stephen Hemminger [this message]
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