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Code Issues Releases Activity

- Fix timeout for unodered excution.

Browse Source 
In unodered excution case, we cannot detect link-chain end only
	by prev == NULL if lastest ORB is executed earlyer than the former
	ORBs. Use ORB_LINK_DEAD flag for this case.

- Don't reset agent for management ORB.
- Improve debug messages.

Spotted by: sbp target mode
This commit is contained in:
Hidetoshi Shimokawa 2003-10-06 03:44:37 +00:00
parent a844eb934c
commit baaf74b248
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=120842
1 changed files with 32 additions and 12 deletions
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44
sys/dev/firewire/sbp.c
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@ -157,7 +157,9 @@ struct sbp_dev{
timeout:4;
u_int8_t type;
u_int16_t lun_id;
int freeze;
u_int16_t freeze;
#define ORB_LINK_DEAD 1
u_int16_t flags;
struct cam_path *path;
struct sbp_target *target;
struct fwdma_alloc dma;
@ -194,8 +196,6 @@ struct sbp_softc {
struct sbp_target targets[SBP_NUM_TARGETS];
struct fw_bind fwb;
bus_dma_tag_t dmat;
#define SBP_RESOURCE_SHORTAGE 0x10
unsigned char flags;
};
static void sbp_post_explore __P((void *));
static void sbp_recv __P((struct fw_xfer *));
@ -811,6 +811,10 @@ SBP_DEBUG(2)
sbp_show_sdev_info(sdev, 2);
printf("sbp_cmd_callback\n");
END_DEBUG
if (xfer->resp != 0) {
/* XXX */
printf("%s: xfer->resp != 0\n", __FUNCTION__);
}
sbp_xfer_free(xfer);
return;
}
@ -1536,6 +1540,7 @@ END_DEBUG
switch(ocb->flags) {
case OCB_ACT_MGM:
orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
reset_agent = 0;
switch(orb_fun) {
case ORB_FUN_LGI:
fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
@ -1953,7 +1958,8 @@ sbp_mgm_timeout(void *arg)
struct sbp_target *target = sdev->target;
sbp_show_sdev_info(sdev, 2);
printf("management ORB timeout\n");
printf("request timeout(mgm orb:0x%08x) ... ",
(u_int32_t)ocb->bus_addr);
target->mgm_ocb_cur = NULL;
sbp_free_ocb(sdev, ocb);
#if 0
@ -1972,7 +1978,8 @@ sbp_timeout(void *arg)
struct sbp_dev *sdev = ocb->sdev;
sbp_show_sdev_info(sdev, 2);
printf("request timeout ... ");
printf("request timeout(cmd orb:0x%08x) ... ",
(u_int32_t)ocb->bus_addr);
sdev->timeout ++;
switch(sdev->timeout) {
@ -2366,8 +2373,10 @@ END_DEBUG
BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
prev = sbp_enqueue_ocb(ocb->sdev, ocb);
fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
if (prev == NULL)
if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
ocb->sdev->flags &= ~ORB_LINK_DEAD;
sbp_orb_pointer(ocb->sdev, ocb);
}
}
static void
@ -2413,8 +2422,18 @@ END_DEBUG
bus_dmamap_unload(sdev->target->sbp->dmat,
ocb->dmamap);
}
if (next != NULL && sbp_status->src == 1)
sbp_orb_pointer(sdev, next);
if (sbp_status->src == SRC_NO_NEXT) {
if (next != NULL)
sbp_orb_pointer(sdev, next);
else if (order > 0) {
/*
* Unordered execution
* We need to send pointer for
* next ORB
*/
sdev->flags |= ORB_LINK_DEAD;
}
}
break;
} else
order ++;
@ -2451,13 +2470,14 @@ END_DEBUG
ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
(ocb->ccb->ccb_h.timeout * hz) / 1000);
if (prev != NULL ) {
if (prev != NULL) {
SBP_DEBUG(1)
#if __FreeBSD_version >= 500000
printf("linking chain 0x%jx -> 0x%jx\n",
(uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
printf("linking chain 0x%jx -> 0x%jx\n",
(uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
#else
printf("linking chain 0x%x -> 0x%x\n", prev->bus_addr, ocb->bus_addr);
printf("linking chain 0x%x -> 0x%x\n",
prev->bus_addr, ocb->bus_addr);
#endif
END_DEBUG
prev->orb[1] = htonl(ocb->bus_addr);