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Date: Thu, 14 Sep 2023 12:57:59 +0200
From: Simon Horman <horms@...nel.org>
To: Shinas Rasheed <srasheed@...vell.com>
Cc: aayarekar@...vell.com, davem@...emloft.net, edumazet@...gle.com,
egallen@...hat.com, hgani@...vell.com, kuba@...nel.org,
linux-kernel@...r.kernel.org, mschmidt@...hat.com,
netdev@...r.kernel.org, pabeni@...hat.com, sburla@...vell.com,
sedara@...vell.com, vburru@...vell.com, vimleshk@...vell.com
Subject: Re: [net PATCH v2] octeon_ep: fix tx dma unmap len values in SG
On Wed, Sep 13, 2023 at 01:41:56AM -0700, Shinas Rasheed wrote:
> Lengths of SG pointers are kept in the following order in
> the SG entries in hardware.
> 63 48|47 32|31 16|15 0
> -----------------------------------------
> | Len 0 | Len 1 | Len 2 | Len 3 |
> -----------------------------------------
> | Ptr 0 |
> -----------------------------------------
> | Ptr 1 |
> -----------------------------------------
> | Ptr 2 |
> -----------------------------------------
> | Ptr 3 |
> -----------------------------------------
> Dma pointers have to be unmapped based on their
> respective lengths given in this format.
>
> Fixes: 37d79d059606 ("octeon_ep: add Tx/Rx processing and interrupt support")
> Signed-off-by: Shinas Rasheed <srasheed@...vell.com>
Reviewed-by: Simon Horman <horms@...nel.org>
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