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[SCSI] libfc: change debug messages to give host number.

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libfc debug messages currently show 'lport: <fc-id>:'
wher <fc-id> is the hex assigned port-id.  When the lport
is logged off, that will be zero, so its hard to distinguish
which instance is involved.  The FC-ID can change
if the port is re-patched or changes VSANs.

Two lports may even have the same FC-ID if connected to isolated SANs.

Change the debug messages to print the SCSI host number "hostN:",
which will not change for the life of the lport.
Still show the FC_ID on lport messages.

Also, add a macro to FC_RPORT_ID_DBG for rport debugging where there's
no rdata structure involved.  It takes the lport and port_id as parameters.
Use this in fc_rport_recv_plogi_req() and fc_rport_recv_logo_req().

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@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Joe Eykholt 2009-07-29 17:04:12 -07:00 committed by James Bottomley
parent beb29a6d42
commit 7f74549ff6
1 changed files with 20 additions and 16 deletions
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36
include/scsi/libfc.h
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@ -59,47 +59,51 @@ do { \
#define FC_LPORT_DBG(lport, fmt, args...) \
FC_CHECK_LOGGING(FC_LPORT_LOGGING, \
printk(KERN_INFO "lport: %6x: " fmt, \
fc_host_port_id(lport->host), ##args))
printk(KERN_INFO "host%u: lport %6x: " fmt, \
(lport)->host->host_no, \
fc_host_port_id((lport)->host), ##args))
#define FC_DISC_DBG(disc, fmt, args...) \
FC_CHECK_LOGGING(FC_DISC_LOGGING, \
printk(KERN_INFO "disc: %6x: " fmt, \
fc_host_port_id(disc->lport->host), \
printk(KERN_INFO "host%u: disc: " fmt, \
(disc)->lport->host->host_no, \
##args))
#define FC_RPORT_ID_DBG(lport, port_id, fmt, args...) \
FC_CHECK_LOGGING(FC_RPORT_LOGGING, \
printk(KERN_INFO "host%u: rport %6x: " fmt, \
(lport)->host->host_no, \
(port_id), ##args))
#define FC_RPORT_DBG(rport, fmt, args...) \
do { \
struct fc_rport_libfc_priv *rdata = rport->dd_data; \
struct fc_lport *lport = rdata->local_port; \
FC_CHECK_LOGGING(FC_RPORT_LOGGING, \
printk(KERN_INFO "rport: %6x: %6x: " fmt, \
fc_host_port_id(lport->host), \
rport->port_id, ##args)); \
FC_RPORT_ID_DBG(lport, rport->port_id, fmt, ##args); \
} while (0)
#define FC_FCP_DBG(pkt, fmt, args...) \
FC_CHECK_LOGGING(FC_FCP_LOGGING, \
printk(KERN_INFO "fcp: %6x: %6x: " fmt, \
fc_host_port_id(pkt->lp->host), \
printk(KERN_INFO "host%u: fcp: %6x: " fmt, \
(pkt)->lp->host->host_no, \
pkt->rport->port_id, ##args))
#define FC_EM_DBG(em, fmt, args...) \
FC_CHECK_LOGGING(FC_EM_LOGGING, \
printk(KERN_INFO "em: %6x: " fmt, \
fc_host_port_id(em->lp->host), \
printk(KERN_INFO "host%u: em: " fmt, \
(em)->lp->host->host_no, \
##args))
#define FC_EXCH_DBG(exch, fmt, args...) \
FC_CHECK_LOGGING(FC_EXCH_LOGGING, \
printk(KERN_INFO "exch: %6x: %4x: " fmt, \
fc_host_port_id(exch->lp->host), \
printk(KERN_INFO "host%u: xid %4x: " fmt, \
(exch)->lp->host->host_no, \
exch->xid, ##args))
#define FC_SCSI_DBG(lport, fmt, args...) \
FC_CHECK_LOGGING(FC_SCSI_LOGGING, \
printk(KERN_INFO "scsi: %6x: " fmt, \
fc_host_port_id(lport->host), ##args))
printk(KERN_INFO "host%u: scsi: " fmt, \
(lport)->host->host_no, ##args))
/*
* libfc error codes