Author: imp
Date: Mon Dec  7 04:14:29 2015
New Revision: 291920
URL: https://svnweb.freebsd.org/changeset/base/291920

Log:
  Improve cam tracing a little by including the function code in the
  traces for xpt_action. Note up-calls (down-calls?) to the SIM as well.
  
  Differential Review: https://reviews.freebsd.org/D4382

Modified:
  head/sys/cam/cam_xpt.c

Modified: head/sys/cam/cam_xpt.c
==============================================================================
--- head/sys/cam/cam_xpt.c      Mon Dec  7 04:03:01 2015        (r291919)
+++ head/sys/cam/cam_xpt.c      Mon Dec  7 04:14:29 2015        (r291920)
@@ -2450,7 +2450,8 @@ void
 xpt_action(union ccb *start_ccb)
 {
 
-       CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("xpt_action\n"));
+       CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
+           ("xpt_action: func=%#x\n", start_ccb->ccb_h.func_code));
 
        start_ccb->ccb_h.status = CAM_REQ_INPROG;
        (*(start_ccb->ccb_h.path->bus->xport->action))(start_ccb);
@@ -2464,7 +2465,8 @@ xpt_action_default(union ccb *start_ccb)
        int lock;
 
        path = start_ccb->ccb_h.path;
-       CAM_DEBUG(path, CAM_DEBUG_TRACE, ("xpt_action_default\n"));
+       CAM_DEBUG(path, CAM_DEBUG_TRACE,
+           ("xpt_action_default: func=%#x\n", start_ccb->ccb_h.func_code));
 
        switch (start_ccb->ccb_h.func_code) {
        case XPT_SCSI_IO:
@@ -2618,7 +2620,11 @@ call_sim:
                lock = (mtx_owned(sim->mtx) == 0);
                if (lock)
                        CAM_SIM_LOCK(sim);
+               CAM_DEBUG(path, CAM_DEBUG_TRACE,
+                   ("sim->sim_action: func=%#x\n", 
start_ccb->ccb_h.func_code));
                (*(sim->sim_action))(sim, start_ccb);
+               CAM_DEBUG(path, CAM_DEBUG_TRACE,
+                   ("sim->sim_action: status=%#x\n", start_ccb->ccb_h.status));
                if (lock)
                        CAM_SIM_UNLOCK(sim);
                break;
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