>
> 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: Yi Zou <[email protected]>
Won't say this one this a bug-fix as I was saying in the cover, but it's really
Nice to have this when debugging on fcp layer for the i/o.
Yi
> ---
>
> drivers/scsi/libfc/fc_libfc.h | 16 ++++++++++++++--
> 1 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/libfc/fc_libfc.h b/drivers/scsi/libfc/fc_libfc.h
> index 16d2162..eea0c35 100644
> --- a/drivers/scsi/libfc/fc_libfc.h
> +++ b/drivers/scsi/libfc/fc_libfc.h
> @@ -66,9 +66,21 @@ extern unsigned int fc_debug_logging;
>
> #define FC_FCP_DBG(pkt, fmt, args...)
> \
> FC_CHECK_LOGGING(FC_FCP_LOGGING, \
> - printk(KERN_INFO "host%u: fcp: %6.6x: " fmt, \
> + { \
> + 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, ##args))
> + (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); \
> + } \
> + })
>
> #define FC_EXCH_DBG(exch, fmt, args...)
> \
> FC_CHECK_LOGGING(FC_EXCH_LOGGING, \
>
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