From: Bart Van Assche <bvanassche@acm.org>
To: Can Guo <quic_cang@quicinc.com>,
stanley.chu@mediatek.com, adrian.hunter@intel.com,
alim.akhtar@samsung.com, avri.altman@wdc.com, beanhuo@micron.com,
quic_asutoshd@quicinc.com, quic_nguyenb@quicinc.com,
quic_ziqichen@quicinc.com, linux-scsi@vger.kernel.org,
kernel-team@android.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Daejun Park <daejun7.park@samsung.com>,
Jinyoung Choi <j-young.choi@samsung.com>,
Kiwoong Kim <kwmad.kim@samsung.com>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] scsi: ufs: Add Multi-Circular Queue support
Date: Thu, 28 Jul 2022 12:38:14 -0700 [thread overview]
Message-ID: <f803e7fb-9dde-e4d4-a55c-6427516dfdbb@acm.org> (raw)
In-Reply-To: <1658214120-22772-2-git-send-email-quic_cang@quicinc.com>
On 7/19/22 00:01, Can Guo wrote:
> static int ufshcd_map_queues(struct Scsi_Host *shost)
> {
> - int i, ret;
> + int i, queue_offset = 0, ret;
> + struct ufs_hba *hba = shost_priv(shost);
>
> for (i = 0; i < shost->nr_maps; i++) {
> struct blk_mq_queue_map *map = &shost->tag_set.map[i];
>
> - switch (i) {
> - case HCTX_TYPE_DEFAULT:
> - case HCTX_TYPE_POLL:
> - map->nr_queues = 1;
> - break;
> - case HCTX_TYPE_READ:
> - map->nr_queues = 0;
> + map->nr_queues = hba->nr_queues[i];
> + if (!map->nr_queues)
> continue;
> - default:
> - WARN_ON_ONCE(true);
> - }
> - map->queue_offset = 0;
> +
> + map->queue_offset = queue_offset;
> + if (i == HCTX_TYPE_POLL && !is_mcq_enabled(hba))
> + map->queue_offset = 0;
> +
> ret = blk_mq_map_queues(map);
> - WARN_ON_ONCE(ret);
> +
> + if (ret)
> + return ret;
> +
> + queue_offset += map->nr_queues;
> }
It is not clear to me why the WARN_ON_ONCE(ret) statement has been
changed into "if (ret) return ret;"?
Thanks,
Bart.
next prev parent reply other threads:[~2022-07-28 19:38 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1658214120-22772-1-git-send-email-quic_cang@quicinc.com>
2022-07-19 7:01 ` [PATCH 1/2] scsi: ufs: Add Multi-Circular Queue support Can Guo
2022-07-19 23:01 ` Bart Van Assche
2022-07-19 23:07 ` Bart Van Assche
2022-07-20 17:34 ` Asutosh Das (asd)
2022-07-20 7:57 ` kernel test robot
2022-07-20 11:41 ` kernel test robot
2022-07-20 16:36 ` kernel test robot
2022-07-22 7:31 ` Avri Altman
2022-07-22 17:35 ` Asutosh Das (asd)
2022-07-22 19:37 ` Avri Altman
2022-07-22 20:14 ` Asutosh Das (asd)
2022-07-22 20:22 ` Avri Altman
2022-07-22 21:05 ` Asutosh Das (asd)
2022-07-22 17:58 ` Bart Van Assche
2022-07-26 6:48 ` Can Guo
2022-07-22 14:42 ` Avri Altman
2022-07-23 14:59 ` Avri Altman
2022-07-26 2:55 ` Can Guo
2022-07-23 15:26 ` Avri Altman
2022-07-24 3:14 ` Bart Van Assche
2022-07-25 16:24 ` Asutosh Das (asd)
2022-07-23 20:22 ` Avri Altman
2022-07-25 16:26 ` Asutosh Das (asd)
2022-07-25 19:50 ` Avri Altman
2022-07-25 20:24 ` Asutosh Das (asd)
2022-07-23 21:23 ` Avri Altman
2022-07-24 3:15 ` Bart Van Assche
2022-07-25 16:35 ` Asutosh Das (asd)
2022-07-26 22:47 ` Bart Van Assche
2022-07-24 4:07 ` Avri Altman
2022-07-25 16:38 ` Asutosh Das (asd)
2022-07-26 6:35 ` Can Guo
2022-07-26 9:46 ` Avri Altman
2022-07-24 4:32 ` Avri Altman
2022-07-26 6:21 ` Can Guo
2022-07-24 7:21 ` Avri Altman
2022-07-24 21:54 ` Bean Huo
2022-07-25 17:35 ` Asutosh Das (asd)
2022-07-25 9:16 ` Dan Carpenter
2022-07-28 19:10 ` John Garry
2022-07-28 19:15 ` Asutosh Das (asd)
2022-07-28 20:29 ` Bart Van Assche
2022-07-28 21:07 ` Asutosh Das (asd)
2022-07-29 16:43 ` Asutosh Das (asd)
2022-07-29 18:59 ` Bart Van Assche
2022-07-28 19:38 ` Bart Van Assche [this message]
2022-07-28 20:00 ` Asutosh Das (asd)
2022-07-19 7:01 ` [PATCH 2/2] scsi: ufs-qcom: Implement three CMQ related vops Can Guo
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