From: Kevin Traynor <ktraynor@redhat.com> To: Yongseok Koh <yskoh@mellanox.com>, olivier.matz@6wind.com, shahafs@mellanox.com Cc: dev@dpdk.org, arybchenko@solarflare.com, roszenrami@gmail.com, david.marchand@redhat.com, stable@dpdk.org Subject: Re: [dpdk-dev] [PATCH v5 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Date: Wed, 6 Feb 2019 15:54:04 +0000 Message-ID: <cf42c729-1127-7153-835d-cef7ef9ce5d4@redhat.com> (raw) In-Reply-To: <20190114211622.6900-2-yskoh@mellanox.com> On 01/14/2019 09:16 PM, Yongseok Koh wrote: > On replenishing Rx buffers for vectorized Rx, mbuf->buf_addr isn't needed > to be accessed as it is static and easily calculated from the mbuf address. > Accessing the mbuf content causes unnecessary load stall and it is worsened > on ARM. > > Fixes: 545b884b1da3 ("net/mlx5: fix buffer address posting in SSE Rx") > Cc: stable@dpdk.org > This is using the API introduced in 1/2, so it's not really suitable for backport. Maybe you want to send an alternative for stable? > Signed-off-by: Yongseok Koh <yskoh@mellanox.com> > Acked-by: Shahaf Shuler <shahafs@mellanox.com> > ---
next prev parent reply other threads:[~2019-02-06 15:54 UTC|newest] Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-09 8:54 [dpdk-dev] [PATCH] " Yongseok Koh 2019-01-09 9:38 ` David Marchand 2019-01-09 9:52 ` Olivier Matz 2019-01-09 9:56 ` Yongseok Koh 2019-01-09 10:05 ` David Marchand 2019-01-09 10:11 ` Yongseok Koh 2019-01-09 13:19 ` [dpdk-dev] [PATCH v2 1/2] mbuf: add function returning default buffer address Yongseok Koh 2019-01-09 13:19 ` [dpdk-dev] [PATCH v2 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh 2019-01-09 13:46 ` [dpdk-dev] [PATCH v2 1/2] mbuf: add function returning default buffer address David Marchand 2019-01-10 1:39 ` Rami Rosen 2019-01-10 18:18 ` Yongseok Koh 2019-01-10 18:22 ` Yongseok Koh 2019-01-10 18:35 ` [dpdk-dev] [PATCH v3 " Yongseok Koh 2019-01-10 18:35 ` [dpdk-dev] [PATCH v3 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh 2019-01-10 19:10 ` Shahaf Shuler 2019-01-11 8:14 ` [dpdk-dev] [PATCH v3 1/2] mbuf: add function returning default buffer address Andrew Rybchenko 2019-01-11 11:03 ` Yongseok Koh 2019-01-11 11:17 ` Andrew Rybchenko 2019-01-11 11:37 ` Yongseok Koh 2019-01-11 11:57 ` Bruce Richardson 2019-01-11 12:48 ` David Marchand 2019-01-14 15:51 ` Olivier Matz 2019-01-10 22:40 ` [dpdk-dev] [PATCH v4 " Yongseok Koh 2019-01-10 22:40 ` [dpdk-dev] [PATCH v4 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh 2019-01-11 8:05 ` [dpdk-dev] [PATCH v4 1/2] mbuf: add function returning default buffer address Olivier Matz 2019-01-11 8:11 ` David Marchand 2019-01-11 8:32 ` David Marchand 2019-01-11 11:09 ` Yongseok Koh 2019-01-11 10:25 ` Thomas Monjalon 2019-01-14 21:16 ` [dpdk-dev] [PATCH v5 1/2] mbuf: add function returning " Yongseok Koh 2019-01-14 21:16 ` [dpdk-dev] [PATCH v5 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh 2019-02-06 15:54 ` Kevin Traynor [this message] 2019-02-21 19:10 ` Kevin Traynor 2019-03-08 2:05 ` Yongseok Koh 2019-01-15 1:35 ` [dpdk-dev] [PATCH v5 1/2] mbuf: add function returning buffer address Thomas Monjalon
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