From: Jason Gunthorpe <jgg@ziepe.ca>
To: Leon Romanovsky <leon@kernel.org>
Cc: Doug Ledford <dledford@redhat.com>,
Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Boris Pismenny <borisp@mellanox.com>,
Matan Barak <matanb@mellanox.com>,
Raed Salem <raeds@mellanox.com>,
Yishai Hadas <yishaih@mellanox.com>,
Saeed Mahameed <saeedm@mellanox.com>,
linux-netdev <netdev@vger.kernel.org>,
Alex Rosenbaum <alexr@mellanox.com>
Subject: Re: [PATCH mlx5-next v2 11/13] IB/mlx5: Add flow counters binding support
Date: Tue, 29 May 2018 13:56:27 -0600 [thread overview]
Message-ID: <20180529195627.GA31423@ziepe.ca> (raw)
In-Reply-To: <20180529130917.13592-12-leon@kernel.org>
On Tue, May 29, 2018 at 04:09:15PM +0300, Leon Romanovsky wrote:
> diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
> index 508ea8c82da7..ef3f430a7050 100644
> +++ b/include/uapi/rdma/mlx5-abi.h
> @@ -443,4 +443,18 @@ enum {
> enum {
> MLX5_IB_CLOCK_INFO_V1 = 0,
> };
> +
> +struct mlx5_ib_flow_counters_data {
> + __aligned_u64 counters_data;
> + __u32 ncounters;
> + __u32 reserved;
> +};
> +
> +struct mlx5_ib_create_flow {
> + __u32 ncounters_data;
> + __u32 reserved;
> + /* Following are counters data based on ncounters_data */
> + struct mlx5_ib_flow_counters_data data[];
> +};
> +
> #endif /* MLX5_ABI_USER_H */
This uapi thing still needs to be fixed as I pointed out before.
I still can't figure out why this should be a 2d array. I think it
should be written simply as:
struct mlx5_ib_flow_counter_desc {
__u32 description;
__u32 index;
};
struct mlx5_ib_create_flow {
RDMA_UAPI_PTR(struct mlx5_ib_flow_counter_desc, counters_data);
__u32 ncounters;
__u32 reserved;
};
With the corresponding changes elsewhere.
A flex array at the end of a struct means that the struct can never be
extended again which seems like a terrible idea, especially since I
can't fathom why we'd need more that one array of counters and the
current code doesn't even support more than one..
Jason
next prev parent reply other threads:[~2018-05-29 19:56 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-29 13:09 [PATCH rdma-next v2 00/13] Verbs flow counters support Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 01/13] IB/uverbs: Add an ib_uobject getter to ioctl() infrastructure Leon Romanovsky
2018-05-29 19:31 ` Ruhl, Michael J
2018-05-29 20:21 ` Jason Gunthorpe
2018-05-29 20:49 ` Ruhl, Michael J
2018-05-29 20:51 ` Jason Gunthorpe
2018-05-29 13:09 ` [PATCH mlx5-next v2 02/13] net/mlx5: Export flow counter related API Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 03/13] IB/core: Introduce counters object and its create/destroy Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 04/13] IB/uverbs: Add create/destroy counters support Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 05/13] IB/core: Introduce counters read verb Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 06/13] IB/uverbs: Add read counters support Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 07/13] IB/core: Support passing uhw for create_flow Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 08/13] IB/core: Add support for flow counters Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 09/13] IB/uverbs: " Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 10/13] IB/mlx5: Add counters create and destroy support Leon Romanovsky
2018-05-29 13:09 ` [PATCH mlx5-next v2 11/13] IB/mlx5: Add flow counters binding support Leon Romanovsky
2018-05-29 19:56 ` Jason Gunthorpe [this message]
2018-05-30 12:31 ` Yishai Hadas
2018-05-30 15:06 ` Jason Gunthorpe
2018-05-30 15:24 ` Yishai Hadas
2018-05-30 15:35 ` Jason Gunthorpe
2018-05-29 13:09 ` [PATCH rdma-next v2 12/13] IB/mlx5: Add flow counters read support Leon Romanovsky
2018-05-29 13:09 ` [PATCH rdma-next v2 13/13] IB/mlx5: Add " Leon Romanovsky
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=20180529195627.GA31423@ziepe.ca \
--to=jgg@ziepe.ca \
--cc=alexr@mellanox.com \
--cc=borisp@mellanox.com \
--cc=dledford@redhat.com \
--cc=leon@kernel.org \
--cc=leonro@mellanox.com \
--cc=linux-rdma@vger.kernel.org \
--cc=matanb@mellanox.com \
--cc=netdev@vger.kernel.org \
--cc=raeds@mellanox.com \
--cc=saeedm@mellanox.com \
--cc=yishaih@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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).