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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: "Dabilpuram, Nithin" <Nithin.Dabilpuram@cavium.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"Jacob,  Jerin" <Jerin.JacobKollanukkaran@cavium.com>,
	"Czekaj, Maciej" <Maciej.Czekaj@cavium.com>,
	"Nilla, Subrahmanyam" <Subrahmanyam.Nilla@cavium.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [PATCH] net/thunderx: fix Tx desc corruption in scatter-gather mode
Date: Fri, 9 Nov 2018 08:20:15 +0000	[thread overview]
Message-ID: <20181109082000.GA4934@jerin> (raw)
In-Reply-To: <1541742633-798-1-git-send-email-nithin.dabilpuram@caviumnetworks.com>

-----Original Message-----
> Date: Fri, 9 Nov 2018 11:20:55 +0530
> From: "Dabilpuram, Nithin" <Nithin.Dabilpuram@cavium.com>
> To: "dev@dpdk.org" <dev@dpdk.org>, "Jacob,  Jerin"
>  <Jerin.JacobKollanukkaran@cavium.com>, "Czekaj, Maciej"
>  <Maciej.Czekaj@cavium.com>
> CC: "Nilla, Subrahmanyam" <Subrahmanyam.Nilla@cavium.com>,
>  "stable@dpdk.org" <stable@dpdk.org>, "Dabilpuram, Nithin"
>  <Nithin.Dabilpuram@cavium.com>
> Subject: [PATCH] net/thunderx:  fix Tx desc corruption in scatter-gather
>  mode
> 
> From: Subrahmanyam Nilla <snilla@caviumnetworks.com>
> 
> For performance reasons, word1 of send_hdr_s
> sub descriptor was not cleared assuming it is always
> having default value of zero since it comes from fixed
> offsets of SQ buffer.
> This is causing issues in case of SG mode because,
> the size of send command might change and hence the word1
> of send_hdr_s is not always at fixed offsets of the SQ buffer
> and hence not having default value of zero.
> 
> This fixes the issue by clearing the word1 in case of SG mode
> for every packet.
> 
> Fixes: 1c421f18e0 ("net/thunderx: add single and multi-segment Tx")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Subrahmanyam Nilla <snilla@caviumnetworks.com>
> Signed-off-by: Nithin Dabilpuram <ndabilpuram@caviumnetworks.com>
> ---

Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>

  reply	other threads:[~2018-11-09  8:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09  5:50 Nithin Dabilpuram
2018-11-09  8:20 ` Jerin Jacob [this message]
2018-11-09 20:25   ` Ferruh Yigit
2018-11-12  7:21 ` [dpdk-stable] [dpdk-dev] " Verma, Shally

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