Chandra Seetharaman 970f3f47e7 [SCSI] scsi_dh: Make rdac hardware handler's activate() async ... Batch up MODE_SELECT in rdac device handler. LSI RDAC storage has the capability of handling mode selects for multiple luns in a same command. Make use of that ability to send as few MODE SELECTs as possible to the storage controller as possible. This patch creates a work queue and queues up activate requests when a MODE SELECT is sent down the wire. When that MODE SELECT completes, it compiles queued up activate requests for multiple luns into a single MODE SELECT. This reduces the time to do failover/failback of large number of LUNS. Signed-off-by: Babu Moger <babu.moger@lsi.com> Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>		2009-12-04 12:00:47 -06:00
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Kconfig	[SCSI] scsi_dh: add generic SPC-3 alua handler	2008-07-26 15:14:52 -04:00
Makefile	[SCSI] scsi_dh: add generic SPC-3 alua handler	2008-07-26 15:14:52 -04:00
scsi_dh.c	[SCSI] scsi_dh: Change the scsidh_activate interface to be asynchronous	2009-12-04 12:00:46 -06:00
scsi_dh_alua.c	[SCSI] scsi_dh: Change the scsidh_activate interface to be asynchronous	2009-12-04 12:00:46 -06:00
scsi_dh_emc.c	[SCSI] scsi_dh: Change the scsidh_activate interface to be asynchronous	2009-12-04 12:00:46 -06:00
scsi_dh_hp_sw.c	[SCSI] scsi_dh: Change the scsidh_activate interface to be asynchronous	2009-12-04 12:00:46 -06:00
scsi_dh_rdac.c	[SCSI] scsi_dh: Make rdac hardware handler's activate() async	2009-12-04 12:00:47 -06:00