[PATCH 1/1] net/mlx5: show rx/tx descriptor ring limitations in rte_eth_dev_info

[Igor Gutorov]

Hi Stephen,

On Thu, Oct 10, 2024 at 3:18 AM Stephen Hemminger
<stephen at networkplumber.org> wrote:
>
> On Mon, 17 Jun 2024 07:18:58 +0000
> Slava Ovsiienko <viacheslavo at nvidia.com> wrote:
>
> > Hi, Igor
> >
> > Thank you for the patch.
> >
> > 1. The absolute max descriptor number supported by ConnectX hardware is 32768.
> > 2. The actual max descriptor number supported by the port (and its related representors)
> >     reported in log_max_wq_sz in HCA.caps.  This value should be queried and save in mlx5_devx_cmd_query_hca_attr() routine.
> > 3. mlx5_rx_queue_pre_setup() should check requested descriptor number and reject if it exceeds log_max_wq_sz
> > 4. Please, format your patch according to the "fix" template.
> >
> > With best regards,
> > Slava
>
>
> Marking this patch as Changes Requested.
> Yes, this comment expands the scope of the original patch; but if this part of the mlx5
> is going to change, might as well get it right.

I'm new to DPDK development, but if it makes sense, I guess this can
be marked as "Canceled" (or something like that).
There's a v2 of this patch [1], and a v3 [2]. You've left some
suggestions on v2, so I'm going to send a v4.

[1]: https://lore.kernel.org/all/20241009171853.77e8dce7@hermes.local/T/#mecef40b9e98711313e4189d42b0d50676e6d9e5e
[2]: https://lore.kernel.org/all/20241009171853.77e8dce7@hermes.local/T/#md042e15b4642df69127b023144948681b3072af5

--
Igor