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From: Ferruh Yigit <ferruh.yigit@amd.com>
To: Chaoyong He <chaoyong.he@corigine.com>, dev@dpdk.org
Cc: oss-drivers@corigine.com, niklas.soderlund@corigine.com,
	Peng Zhang <peng.zhang@corigine.com>,
	jin.liu@corigine.com, stable@dpdk.org
Subject: Re: [PATCH v2] net/nfp: fix 48-bit DMA address support for NFDk
Date: Mon, 20 Feb 2023 14:02:38 +0000	[thread overview]
Message-ID: <c0c8b0c7-04e4-93de-f96b-fdb968dfee3e@amd.com> (raw)
In-Reply-To: <20230220090254.10641-1-chaoyong.he@corigine.com>

On 2/20/2023 9:02 AM, Chaoyong He wrote:
> From: Peng Zhang <peng.zhang@corigine.com>
> 
> Initializing of the NFP PMD fails when a NFDk device is used in a PCIe
> slot that supports 48-bit DMA address. The failure is due to an
> incorrect check by the PMD that limits the support to 40-bit DMA
> address. While this check is correct for NFD3 devices, it is incorrect
> for NFDk that can support 48-bit DMA address.
> 
> Fix this by correcting the DMA mask check at initialization to allow for
> different DMA address masks for NFD3 and NFDk.
> 
> The RX free list descriptor code is also updated to allow for 48-bit DMA
> address. While this code is shared by the NFD3 and NFDk code paths,
> this is not an issue as for 40-bit address the top bits are always 0.
> 
> Fixes: c73dced48c8c ("net/nfp: add NFDk Tx")
> Cc: jin.liu@corigine.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Peng Zhang <peng.zhang@corigine.com>
> Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
> Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>

Applied to dpdk-next-net/main, thanks.

      reply	other threads:[~2023-02-20 14:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-08  9:15 [PATCH] net/nfp: support 48-bit DMA address for firmware with NFDk Chaoyong He
2023-02-15 13:42 ` Ferruh Yigit
2023-02-15 17:47   ` Niklas Söderlund
2023-02-15 18:28     ` Ferruh Yigit
2023-02-16 10:28       ` Kevin Traynor
2023-02-16 10:37         ` Niklas Söderlund
2023-02-16 10:41           ` Chaoyong He
2023-02-16 10:55             ` Niklas Soderlund
2023-02-16 10:59             ` Ferruh Yigit
2023-02-16 11:11               ` Nole Zhang
2023-02-16 11:17                 ` Ferruh Yigit
2023-02-20  9:02 ` [PATCH v2] net/nfp: fix 48-bit DMA address support for NFDk Chaoyong He
2023-02-20 14:02   ` Ferruh Yigit [this message]

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