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[SCSI] libfc: add hook to notify providers of local port changes

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When an SCST provider is registered, it needs to know what
local ports are available for configuration as targets.

Add a notifier chain that is invoked when any local port
that is added or deleted.

Maintain a global list of local ports and add an
interator function that calls a given function for
every existing local port.  This is used when first
loading a provider.

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
2011-01-28 16:04:18 -08:00
committed by James Bottomley
parent baf9fdf076
commit 70d53b046a
4 changed files with 58 additions and 1 deletions
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2
drivers/scsi/libfc/fc_libfc.h
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@@ -123,6 +123,8 @@ void fc_destroy_fcp(void);
* Internal libfc functions
*/
const char *fc_els_resp_type(struct fc_frame *);
extern void fc_fc4_add_lport(struct fc_lport *);
extern void fc_fc4_del_lport(struct fc_lport *);
/*
* Copies a buffer into an sg list