[dpdk-dev] [PATCH] net/mlx5: check Tx queue size overflow
Yongseok Koh
yskoh at mellanox.com
Wed May 1 02:43:23 CEST 2019
> On Apr 30, 2019, at 1:46 PM, Stephen Hemminger <stephen at networkplumber.org> wrote:
>
> On Tue, 30 Apr 2019 12:04:26 -0700
> Yongseok Koh <yskoh at mellanox.com> wrote:
>
>> + priv->sh->device_attr.orig_attr.max_qp_wr) {
>> + DRV_LOG(DEBUG,
>> + "port %u Tx WQEBB count exceeds the limit (%d),"
>> + " try smaller queue size again",
>> + dev->data->port_id,
>
> The patch looks good, but it could be improved to make life easier
> for the users.
>
> This is an error, why not print it at NOTICE level since DEBUG messages
> are usually suppressed.
Okay, better to set ERROR.
> Please don't break long lines in log messages.
That doesn't add new-line and mlx5 specific coding style.
> The latter part of the message
> is obvious, why not skip it.
Because not all users know what WQEBB means, I wanted to make user's life easier
by informing what to do.
> Also since max_qp_wr is __u32, the print format should be %u
It was copied from the removing line but agree to change.
> Instead:
> DRV_LOG(NOTICE,
> "port %u Tx WQEBB count (%u) exceeds the limit (%u)",
> dev->data->port_id,
> txq_calc_wqebb_cnt(tmpl),
> priv->sh->device_attr.orig_attr.max_qp_wr);
>
> Also, should it have a Fixes: tag to backport to stable?
Okay, no harm to give more information.
Thanks for the review.
Yongseok
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