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Message-ID: <20230914105759.GY401982@kernel.org> 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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