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Review of the eq coalescing logic showed the code was a bit fragmented.
Sometimes it would save/set via an interrupt max value, while in others it
would do so via a usdelay. There were also two places changing eq delay,
one place that issued mailbox commands, and another that changed via
register writes if supported.
Clean this up by:
- Standardizing the operation of lpfc_modify_hba_eq_delay() routine so
that it is always told of a us delay to impose. The routine then chooses
the best way to set that - via register or via mbx.
- Rather than two value types stored in eq->q_mode (usdelay if change via
register, imax if change via mbox) - q_mode always contains usdelay.
Before any value change, old vs new value is compared and only if
different is a change done.
- Revised the dmult calculation. dmult is not set based on overall imax
divided by hardware queues - instead imax applies to a single cpu and
the value will be replicated to all cpus.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
cb733e3587