Update the CAM API for FreeBSD 10:

- Remove the timeout_ch field.  It's been deprecated since FreeBSD 7.0;
  MPSAFE drivers should be managing their own timeout storage.  The
  remaining non-MPSAFE drivers have been modified to also manage their own
  storage, and should be considered for updating to MPSAFE (or removal)
  during the FreeBSD 10.x lifecycle.

- Add fields related to soft timeouts and quality of service, to be used
  in upcoming work.

- Add room for more flags in the CCB header and path_inq structures.

- Begin support for extended 64-bit LUNs.

- Bump the CAM version number to 0x18, but add compat shims.  Tested with
  camcontrol and smartctl.

Reviewed by:    nathanw, ken, kib
Approved by:    re
Obtained from:  Netflix

2 files changed, 4 insertions, 3 deletions

diff --git a/sys/dev/hpt27xx/hpt27xx_osm_bsd.c b/sys/dev/hpt27xx/hpt27xx_osm_bsd.c
index 3c9f0ac..d66db18 100644
--- a/sys/dev/hpt27xx/hpt27xx_osm_bsd.c
+++ b/sys/dev/hpt27xx/hpt27xx_osm_bsd.c
@@ -432,7 +432,7 @@ static void os_cmddone(PCOMMAND pCmd)
 
 	KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 	
-	untimeout(hpt_timeout, pCmd, ccb->ccb_h.timeout_ch);
+	untimeout(hpt_timeout, pCmd, ext->timeout_ch);
 
 	switch(pCmd->Result) {
 	case RETURN_SUCCESS:
@@ -510,8 +510,7 @@ static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs
 			    BUS_DMASYNC_PREWRITE);
 		}
 	}
-
-	ext->ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
+	ext->timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
 	ldm_queue_cmd(pCmd);
 }
 
@@ -1048,6 +1047,7 @@ static void hpt_final_init(void *dummy)
 				os_printk("Can't create dma map(%d)", i);
 				return ;
 			}
+			callout_handle_init(&ext->timeout_ch);
 		}
 
 		if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
diff --git a/sys/dev/hpt27xx/os_bsd.h b/sys/dev/hpt27xx/os_bsd.h
index e3f8e7d..6de4dbb 100644
--- a/sys/dev/hpt27xx/os_bsd.h
+++ b/sys/dev/hpt27xx/os_bsd.h
@@ -174,6 +174,7 @@ typedef struct _os_cmdext {
 	struct _os_cmdext *next;
 	union ccb         *ccb;
 	bus_dmamap_t       dma_map;
+	struct callout_handle timeout_ch;
 	SG                 psg[os_max_sg_descriptors];
 }
 OS_CMDEXT, *POS_CMDEXT;