DPDK patches and discussions
 help / color / mirror / Atom feed
From: David Marchand <david.marchand@redhat.com>
To: Xueming Li <xuemingl@mellanox.com>
Cc: dev <dev@dpdk.org>,
	Asaf@dpdk.org,  Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: Re: [dpdk-dev] [v2] vdpa/mlx5: fix event queue number query
Date: Tue, 28 Jul 2020 14:05:17 +0200
Message-ID: <CAJFAV8ykV4-3h_QV4gJzZL9xMjHWSouguRh8RTLhLtQXmdhdmQ@mail.gmail.com> (raw)
In-Reply-To: <1595928159-10346-1-git-send-email-xuemingl@mellanox.com>

On Tue, Jul 28, 2020 at 11:23 AM Xueming Li <xuemingl@mellanox.com> wrote:
>
> With latest rte api, vdpa example failed on vq setup, the api to get
> event queue of specified core failed.
>
> After
> commit 67ae5936c4fc36 ("eal: fix lcore accessors for non-EAL threads"),
> code of "vhost-event" thread to get current cpu id returns -1.
>

This is how you figured this problem, but the first part of the
commitlog gives the impression there is a regression in the EAL.
I would prefer it is removed (maybe simply when applying?).


> On the other hand, internal api devx_query_eqn expects index of event
> queue vectors, no need to use cpu id. As the doorbell handling thread is
> per device, it's sufficient to use default event queue.
>
> This patch uses the default id(0) as event queue index.
>
> Fixes: 8395927cdfaf ("vdpa/mlx5: prepare HW queues")
>
> Signed-off-by: Xueming Li <xuemingl@mellanox.com>
> Acked-by: Matan Azrad <matan@mellanox.com>


Thanks.

-- 
David Marchand


  reply	other threads:[~2020-07-28 12:05 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28  6:11 [dpdk-dev] [PATCH] vdpa/mlx5: use master core Id for vhost thread Xueming Li
2020-07-28  6:22 ` [dpdk-dev] [v1] vdpa/mlx5: use control " Xueming Li
2020-07-28  7:08 ` [dpdk-dev] [PATCH] vdpa/mlx5: use master " David Marchand
2020-07-28  7:19   ` Matan Azrad
2020-07-28  7:25     ` David Marchand
2020-07-28  7:30       ` Matan Azrad
2020-07-28  7:53         ` David Marchand
2020-07-28  8:06           ` Xueming(Steven) Li
2020-07-28  8:27             ` Matan Azrad
2020-07-28  8:30               ` David Marchand
2020-07-28  8:24 ` Xueming(Steven) Li
2020-07-28  9:22 ` [dpdk-dev] [v2] vdpa/mlx5: fix event queue number query Xueming Li
2020-07-28 12:05   ` David Marchand [this message]
2020-07-28 12:26     ` Xueming(Steven) Li
2020-07-28 12:32 ` [dpdk-dev] [v3] " Xueming Li
2020-07-28 14:04   ` Maxime Coquelin
2020-07-28 15:55   ` Maxime Coquelin

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=CAJFAV8ykV4-3h_QV4gJzZL9xMjHWSouguRh8RTLhLtQXmdhdmQ@mail.gmail.com \
    --to=david.marchand@redhat.com \
    --cc=Asaf@dpdk.org \
    --cc=dev@dpdk.org \
    --cc=maxime.coquelin@redhat.com \
    --cc=xuemingl@mellanox.com \
    /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

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git