From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Charles McLachlan <cmclachlan@solarflare.com>
Cc: <davem@davemloft.net>, <netdev@vger.kernel.org>,
<linux-net-drivers@solarflare.com>,
brouer@redhat.com
Subject: Re: [PATCH net-next v4 4/6] sfc: allocate channels for XDP tx queues
Date: Thu, 31 Oct 2019 21:04:09 +0100 [thread overview]
Message-ID: <20191031210409.0b45a68c@carbon> (raw)
In-Reply-To: <c7b5b78a-3679-cb63-7e7e-6386a32f374f@solarflare.com>
On Thu, 31 Oct 2019 10:23:49 +0000
Charles McLachlan <cmclachlan@solarflare.com> wrote:
> Each CPU needs access to its own queue to allow uncontested
> transmission of XDP_TX packets. This means we need to allocate (up
> front) enough channels ("xdp transmit channels") to provide at least
> one extra tx queue per CPU. These tx queues should not do TSO.
>
> Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2019-10-31 20:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-31 10:21 [PATCH net-next v4 0/6] sfc: Add XDP support Charles McLachlan
2019-10-31 10:23 ` [PATCH net-next v4 1/6] sfc: support encapsulation of xdp_frames in efx_tx_buffer Charles McLachlan
2019-10-31 19:54 ` Jesper Dangaard Brouer
2019-10-31 10:23 ` [PATCH net-next v4 2/6] sfc: perform XDP processing on received packets Charles McLachlan
2019-10-31 19:59 ` Jesper Dangaard Brouer
2019-10-31 10:23 ` [PATCH net-next v4 3/6] sfc: Enable setting of xdp_prog Charles McLachlan
2019-10-31 20:00 ` Jesper Dangaard Brouer
2019-10-31 10:23 ` [PATCH net-next v4 4/6] sfc: allocate channels for XDP tx queues Charles McLachlan
2019-10-31 20:04 ` Jesper Dangaard Brouer [this message]
2019-10-31 10:24 ` [PATCH net-next v4 5/6] sfc: handle XDP_TX outcomes of XDP eBPF programs Charles McLachlan
2019-10-31 20:14 ` Jesper Dangaard Brouer
2019-10-31 10:24 ` [PATCH net-next v4 6/6] sfc: add XDP counters to ethtool stats Charles McLachlan
2019-10-31 20:13 ` Jesper Dangaard Brouer
2019-10-31 20:20 ` David Ahern
2019-10-31 18:42 ` [PATCH net-next v4 0/6] sfc: Add XDP support David Miller
2019-10-31 21:15 ` David Miller
2019-10-31 22:18 ` David Ahern
2019-11-01 10:07 ` Martin Habets
2019-11-03 17:24 ` David Ahern
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191031210409.0b45a68c@carbon \
--to=brouer@redhat.com \
--cc=cmclachlan@solarflare.com \
--cc=davem@davemloft.net \
--cc=linux-net-drivers@solarflare.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.