From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Ciara Loftus <ciara.loftus@intel.com>
Cc: dev@dpdk.org, kevin.laatz@intel.com, bruce.richardson@intel.com
Subject: Re: [dpdk-dev] [PATCH v2 3/3] net/af_xdp: enable support for unaligned umem chunks
Date: Sat, 19 Oct 2019 07:48:15 +0800 [thread overview]
Message-ID: <20191018234815.GB44515@intel.com> (raw)
In-Reply-To: <20190930164205.19419-4-ciara.loftus@intel.com>
On 09/30, Ciara Loftus wrote:
>This patch enables the unaligned chunks feature for AF_XDP which allows
>chunks to be placed at arbitrary places in the umem, as opposed to them
>being required to be aligned to 2k. This allows for DPDK application
>mempools to be mapped directly into the umem and in turn enable zero copy
>transfer between umem and the PMD.
>
>This patch replaces the zero copy via external mbuf mechanism introduced
>in commit e9ff8bb71943 ("net/af_xdp: enable zero copy by external mbuf").
>The pmd_zero copy vdev argument is also removed as now the PMD will
>auto-detect presence of the unaligned chunks feature and enable it if so
>and otherwise fall back to copy mode if not detected.
>
>Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
>Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
>---
> doc/guides/nics/af_xdp.rst | 2 +-
> doc/guides/rel_notes/release_19_11.rst | 4 +
> drivers/net/af_xdp/rte_eth_af_xdp.c | 402 ++++++++++++++++++++-----
> 3 files changed, 325 insertions(+), 83 deletions(-)
>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>
next prev parent reply other threads:[~2019-10-18 23:51 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-30 16:42 [dpdk-dev] [PATCH v2 0/3] AF_XDP tx halt fix, IRQ pinning and unaligned chunks Ciara Loftus
2019-09-30 16:42 ` [dpdk-dev] [PATCH v2 1/3] net/af_xdp: fix Tx halt when no recv packets Ciara Loftus
2019-10-22 5:32 ` Ye Xiaolong
2019-09-30 16:42 ` [dpdk-dev] [PATCH v2 2/3] net/af_xdp: support pinning of IRQs Ciara Loftus
2019-09-30 17:11 ` Stephen Hemminger
2019-10-03 13:23 ` Loftus, Ciara
2019-10-14 14:43 ` Bruce Richardson
2019-10-21 15:24 ` Ferruh Yigit
2019-10-21 15:54 ` Bruce Richardson
2019-10-21 16:02 ` Ferruh Yigit
2019-10-21 16:14 ` Bruce Richardson
2019-10-15 11:14 ` Ray Kinsella
2019-10-21 10:04 ` Loftus, Ciara
2019-10-21 12:52 ` Varghese, Vipin
2019-10-21 13:04 ` Bruce Richardson
2019-10-21 13:11 ` Varghese, Vipin
2019-10-21 13:17 ` Bruce Richardson
2019-10-21 13:45 ` Varghese, Vipin
2019-10-21 13:56 ` Bruce Richardson
2019-10-21 14:06 ` Varghese, Vipin
2019-10-18 23:49 ` Ye Xiaolong
2019-09-30 16:42 ` [dpdk-dev] [PATCH v2 3/3] net/af_xdp: enable support for unaligned umem chunks Ciara Loftus
2019-10-18 23:48 ` Ye Xiaolong [this message]
2019-10-22 14:28 ` Ferruh Yigit
2019-10-24 11:10 ` David Marchand
2019-10-24 12:18 ` David Marchand
2019-10-24 14:18 ` Ferruh Yigit
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