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[SCSI] libfc: add interface to allocate a sequence for incoming requests

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For incoming ELS and FCP requests, we often don't require an
exchange and sequence, however, sometimes we do.  For those cases,
(primarily FCP requests for targets) add a function to set up
the exchange and sequence.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Joe Eykholt
2010-07-20 15:21:07 -07:00
committed by James Bottomley
parent 24f089e2f2
commit 239e81048b
2 changed files with 32 additions and 0 deletions
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7
include/scsi/libfc.h
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@ -555,6 +555,13 @@ struct libfc_function_template {
*/
struct fc_seq *(*seq_start_next)(struct fc_seq *);
/*
* Assign a sequence for an incoming request frame.
*
* STATUS: OPTIONAL
*/
struct fc_seq *(*seq_assign)(struct fc_lport *, struct fc_frame *);
/*
* Reset an exchange manager, completing all sequences and exchanges.
* If s_id is non-zero, reset only exchanges originating from that FID.