Hi Sagi,
Hi Ming,
I'm looking at why there is only 1 HW queue for iser.
2185 int scsi_mq_setup_tags(struct Scsi_Host *shost)
2186 {
...
2199 shost->tag_set.nr_hw_queues = shost->nr_hw_queues ? : 1;
It seems because iser code does not set shost->nr_hw_queues at all.
Why?
The iscsi driver has not yet been converted to scsi_mq and iser as
an iscsi transport still does not use multi-queue.
In iscsi, a hw queue maps to an iscsi session. In order to support
multi-queue we need to have iscsi open multiple sessions and map
a session to a queue.
I had some preliminary works on this (joint with Mike Christie) but I
didn't have time thus far to implement a full conversion to scsi-mq.
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