Bart Van Assche d1b4289e16 IB/srp: One FMR pool per SRP connection ... Allocate one FMR pool per SRP connection instead of one SRP pool per HCA. This improves scalability of the SRP initiator. Only request the SCSI mid-layer to retry a SCSI command after a temporary mapping failure (-ENOMEM) but not after a permanent mapping failure. This avoids that SCSI commands are retried indefinitely if a permanent memory mapping failure occurs. Tell the SCSI mid-layer to reduce queue depth temporarily in the unlikely case where an application is queuing many requests with more than max_pages_per_fmr sg-list elements. For FMR pool allocation, base the max_pages_per_fmr parameter on the HCA memory registration limit. Only try to allocate an FMR pool if FMR is supported. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Roland Dreier <roland@purestorage.com>		2014-05-20 09:20:52 -07:00
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core	Merge branches 'core', 'cxgb4', 'ip-roce', 'iser', 'misc', 'mlx4', 'nes', 'ocrdma', 'qib', 'sgwrapper', 'srp' and 'usnic' into for-next	2014-04-03 08:30:17 -07:00
hw	RDMA/cxgb4: Update Kconfig to include Chelsio T5 adapter	2014-04-28 17:29:41 -07:00
ulp	IB/srp: One FMR pool per SRP connection	2014-05-20 09:20:52 -07:00
Kconfig	Merge branch 'ip-roce' into for-next	2014-01-22 23:24:21 -08:00
Makefile	IB/usnic: Add Cisco VIC low-level hardware driver	2014-01-14 00:44:28 -08:00