Messages in this thread | | | Date | Sat, 14 Oct 2017 00:45:20 +0800 | From | Ming Lei <> | Subject | Re: [PATCH V7 4/6] blk-mq: introduce .get_budget and .put_budget in blk_mq_ops |
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On Fri, Oct 13, 2017 at 04:31:04PM +0000, Bart Van Assche wrote: > On Sat, 2017-10-14 at 00:07 +0800, Ming Lei wrote: > > Actually it is in hot path, for example, lpfc and qla2xx's queue depth is 3, > > Sorry but I doubt whether that is correct. More in general, I don't know any modern > storage HBA for which the default queue depth is so low.
You can grep:
[ming@ming linux]$ git grep -n cmd_per_lun ./drivers/scsi/ | grep -E "qla2xxx|lpfc"
Even SRP/IB isn't big too, just 32.
-- Ming
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