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From: David Marchand <david.marchand@redhat.com>
To: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Cc: dev <dev@dpdk.org>, Raslan Darawsheh <rasland@nvidia.com>,
	Matan Azrad <matan@nvidia.com>,
	 Thomas Monjalon <thomas@monjalon.net>,
	dpdk stable <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2] common/mlx5: add provider query port support to glue library
Date: Wed, 23 Jun 2021 12:42:45 +0200	[thread overview]
Message-ID: <CAJFAV8z7UwefFxRHUpEQ1OqT_Mn7uvmmLOH+VWvbCpOv18g-qg@mail.gmail.com> (raw)
In-Reply-To: <20210619124830.25297-1-viacheslavo@nvidia.com>

On Sat, Jun 19, 2021 at 2:49 PM Viacheslav Ovsiienko
<viacheslavo@nvidia.com> wrote:
>
> The rdma-core mlx5 provider introduced the port attributes query
> API since version v35.0 - the mlx5dv_query_port routine. In order
> to support this change in the rdma-core the conditional compilation
> flag HAVE_MLX5DV_DR_DEVX_PORT_V35 is introduced by the this patch.
>
> In the OFED rdma-core version the new compatible mlx5dv_query_port
> routine was introduced as well, replacing the existing proprietary
> mlx5dv_query_devx_port routine. The proprietary routine was
> controlled in PMD code with HAVE_MLX5DV_DR_DEVX_PORT conditional
> flag.
>
> Currently, the OFED rdma-core library contains both versions of
> port query API. And this version is a transitional one, there are
> the plans to remove the proprietary mlx5dv_query_devx_port routine
> and the HAVE_MLX5DV_DR_DEVX_PORT flag in PMD will not work anymore.
>
> We had one more dependency on this flag in the code (for the
> mlx5dv_dr_action_create_dest_ib_port routine) and the patch
> fixes mentioned dependency also, by introducing the new
> dedicated conditional flag - HAVE_MLX5DV_DR_CREATE_DEST_IB_PORT.
>
> This patch is highly desirable to be provided in DPDK LTS releases
> due to it covers the major compatibility issue.

This patch is a fix, yet nothing tells this story in the title.
And the title does not reflect that it is a fix wrt versions of rdma-core.
Is this a build issue? or a runtime compat issue?

A good title makes life easier for users and people maintaining stable
versions of DPDK.


-- 
David Marchand


  parent reply	other threads:[~2021-06-23 10:43 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-19 12:48 Viacheslav Ovsiienko
2021-06-20  8:25 ` Raslan Darawsheh
2021-06-23 10:42 ` David Marchand [this message]
2021-06-23 11:27   ` Slava Ovsiienko
2021-06-23 13:51     ` David Marchand
2021-06-23 15:39       ` Slava Ovsiienko
2021-06-24 10:10       ` Slava Ovsiienko
2021-07-01  7:15       ` [dpdk-dev] [PATCH v3 1/2] " Viacheslav Ovsiienko
2021-07-01  7:15         ` [dpdk-dev] [PATCH v3 2/2] common/mlx5: fix compilation flag on port query API Viacheslav Ovsiienko
2021-07-06 13:49           ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2021-07-06 13:44         ` [dpdk-dev] [PATCH v3 1/2] common/mlx5: add provider query port support to glue library Thomas Monjalon
2021-07-07 15:54       ` [dpdk-dev] [PATCH v4 " Viacheslav Ovsiienko
2021-07-07 15:54         ` [dpdk-dev] [PATCH v4 2/2] common/mlx5: fix compilation flag on port query API Viacheslav Ovsiienko
2021-07-07 17:39           ` Thomas Monjalon
2021-07-07 17:12         ` [dpdk-dev] [PATCH v4 1/2] common/mlx5: add provider query port support to glue library Thomas Monjalon
2021-07-08 16:07         ` Raslan Darawsheh

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