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[SCSI] scsi_transport_sas: add support for transport layer retries (TLR)

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The mpt2sas driver wants to use transport layer retries (TLR) so the
simplest thing to do seems to be to add the enabling flags and checks
to the SAS transport class, since they're a SAS specific protocol
feature.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Bottomley
2010-01-18 10:14:51 -06:00
parent 8605c46c17
commit 0f88009d5c
3 changed files with 105 additions and 7 deletions
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2
drivers/scsi/scsi_sas_internal.h
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@@ -5,7 +5,7 @@
#define SAS_PHY_ATTRS 17
#define SAS_PORT_ATTRS 1
#define SAS_RPORT_ATTRS 7
#define SAS_END_DEV_ATTRS 3
#define SAS_END_DEV_ATTRS 5
#define SAS_EXPANDER_ATTRS 7
struct sas_internal {