[SCSI] zfcp: Use unchained mode for small ct and els requests

Browse source

The ELS ADISC and the GID_PN requests sent from zfcp fit into
unchained FSF requests. Change the FSF allocation logic to use
unchained requests whenever possible where everything fits in one
SBAL. This avoids acquiring more SBALs than necessary, especially
during zfcp recovery when things might be stalled.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

...

This commit is contained in:

Christof Schmitt 2009-07-13 15:06:06 +02:00 • committed by James Bottomley

parent 688a1820bd

commit 426f6059b0

1 changed files with 25 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

33

drivers/s390/scsi/zfcp_fsf.c

View file