Re: [PATCH 1/2] scsi: ufs: Add Multi-Circular Queue support

From: John Garry
Date: Thu Jul 28 2022 - 15:10:38 EST


On 19/07/2022 08:01, Can Guo wrote:
+
+ hba->nr_queues[HCTX_TYPE_DEFAULT] = num_possible_cpus();
+ hba->nr_queues[HCTX_TYPE_READ] = 0;
+ hba->nr_queues[HCTX_TYPE_POLL] = 1;
+
+ for (i = 0; i < HCTX_MAX_TYPES; i++)
+ host->nr_hw_queues += hba->nr_queues[i];
+
+ host->can_queue = hba->nutrs;
+ host->cmd_per_lun = hba->nutrs;
+
+ /* One more reserved for dev_cmd_queue */
+ hba->nr_hw_queues = host->nr_hw_queues + 1;
+

So this would mean that the host can accept .can_queue * .nr_hw_queues numbers of requests simultaneously - is that true?

thanks,
John