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Commit 9b90dc80 authored by Yi Zou's avatar Yi Zou Committed by James Bottomley
Browse files

[SCSI] libfc: add print of exchange id for debugging fc_fcp 



This is very helpful to match up the corresponding exchange to the actual I/O
described by the fsp, particularly when you do a side-by-side comparison of
the syslog with your trace.

Signed-off-by: default avatarYi Zou <yi.zou@intel.com>
Signed-off-by: default avatarRobert Love <robert.w.love@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 11aa9900

drivers/scsi/libfc/fc_libfc.h

+14 −2
Original line number Diff line number Diff line
@@ -66,9 +66,21 @@ extern unsigned int fc_debug_logging; 


#define FC_FCP_DBG(pkt, fmt, args...)					\

	FC_CHECK_LOGGING(FC_FCP_LOGGING,				\

	{								\

		if ((pkt)->seq_ptr) {					\

			struct fc_exch *_ep = NULL;			\

			_ep = fc_seq_exch((pkt)->seq_ptr);		\

			printk(KERN_INFO "host%u: fcp: %6.6x: "		\

				"xid %04x-%04x: " fmt,			\

				(pkt)->lp->host->host_no,		\

				(pkt)->rport->port_id,			\

				(_ep)->oxid, (_ep)->rxid, ##args);	\

		} else {						\

			printk(KERN_INFO "host%u: fcp: %6.6x: " fmt,	\

				(pkt)->lp->host->host_no,		\

				pkt->rport->port_id, ##args))

				(pkt)->rport->port_id, ##args);		\

		}							\

	})



#define FC_EXCH_DBG(exch, fmt, args...)					\

	FC_CHECK_LOGGING(FC_EXCH_LOGGING,				\