diff options
| author | Yi Zou <yi.zou@intel.com> | 2010-12-01 01:19:15 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-12-21 19:24:25 +0100 |
| commit | 9b90dc80ba2e566a48585174b1e5ab00e16f0456 (patch) | |
| tree | c4d9c836c6afb9bdeeabeaaba6e4a7421f615f8b /drivers/scsi/libfc | |
| parent | [SCSI] drivers/scsi/fcoe: Update WARN uses (diff) | |
| download | linux-9b90dc80ba2e566a48585174b1e5ab00e16f0456.tar.xz linux-9b90dc80ba2e566a48585174b1e5ab00e16f0456.zip | |
[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: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/libfc')
| -rw-r--r-- | 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 16d2162dda1f..eea0c3541b71 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, \ |