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Fix few bugs in isp(4) target mode support:

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- in destroy_lun_state() assert hold == 1 instead of 0, as it should
receive hold taken by the create_lun_state() or get_lun_statep() before;
 - fix hold count leak inside rls_lun_statep() that also fired above assert;
 - in destroy_lun_state() use SIM bus number instead of SIM path id for
ISP_GET_PC_ADDR(), as it was before r196008;
 - make isp_disable_lun() to set status in CCB;
 - make isp_target_mark_aborted() set status into the proper CCB.

Reviewed by:	mjacob
Sponsored by:	iXsystems, inc.
MFC after:	1 month
This commit is contained in:
Alexander Motin 2011-12-13 09:58:05 +00:00
parent 2162cff196
commit 45210a2512
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=228461
1 changed files with 15 additions and 11 deletions
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26
sys/dev/isp/isp_freebsd.c
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@ -1087,8 +1087,9 @@ static ISP_INLINE void
destroy_lun_state(ispsoftc_t *isp, tstate_t *tptr)
{
struct tslist *lhp;
KASSERT((tptr->hold == 0), ("tptr still held"));
ISP_GET_PC_ADDR(isp, xpt_path_path_id(tptr->owner), lun_hash[LUN_HASH_FUNC(xpt_path_lun_id(tptr->owner))], lhp);
KASSERT((tptr->hold != 0), ("tptr is not held"));
KASSERT((tptr->hold == 1), ("tptr still held (%d)", tptr->hold));
ISP_GET_PC_ADDR(isp, cam_sim_bus(xpt_path_sim(tptr->owner)), lun_hash[LUN_HASH_FUNC(xpt_path_lun_id(tptr->owner))], lhp);
SLIST_REMOVE(lhp, tptr, tstate, next);
xpt_free_path(tptr->owner);
free(tptr, M_DEVBUF);
@ -1316,12 +1317,13 @@ isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
mtx_sleep(isp, &isp->isp_lock, PRIBIO, "want_isp_disable_lun", 0);
}
isp->isp_osinfo.tmbusy = 1;
status = CAM_REQ_INPROG;
/*
* Find the state pointer.
*/
if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
ccb->ccb_h.status = CAM_PATH_INVALID;
status = CAM_PATH_INVALID;
goto done;
}
@ -1341,13 +1343,13 @@ isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
}
isp->isp_osinfo.rptr = &status;
status = CAM_REQ_INPROG;
if (isp_lun_cmd(isp, RQSTYPE_ENABLE_LUN, bus, lun, 0, 0)) {
status = CAM_RESRC_UNAVAIL;
} else {
mtx_sleep(ccb, &isp->isp_lock, PRIBIO, "isp_disable_lun", 0);
}
done:
ccb->ccb_h.status = status;
if (status == CAM_REQ_CMP) {
xpt_print(ccb->ccb_h.path, "now disabled for target mode\n");
}
@ -2949,23 +2951,25 @@ isp_target_mark_aborted(ispsoftc_t *isp, union ccb *ccb)
{
tstate_t *tptr;
atio_private_data_t *atp;
union ccb *accb = ccb->cab.abort_ccb;
tptr = get_lun_statep(isp, XS_CHANNEL(ccb), XS_LUN(ccb));
tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
if (tptr == NULL) {
tptr = get_lun_statep(isp, XS_CHANNEL(ccb), CAM_LUN_WILDCARD);
tptr = get_lun_statep(isp, XS_CHANNEL(accb), CAM_LUN_WILDCARD);
if (tptr == NULL) {
ccb->ccb_h.status = CAM_REQ_INVALID;
return;
}
}
atp = isp_get_atpd(isp, tptr, ccb->atio.tag_id);
atp = isp_get_atpd(isp, tptr, accb->atio.tag_id);
if (atp == NULL) {
ccb->ccb_h.status = CAM_REQ_INVALID;
return;
} else {
atp->dead = 1;
ccb->ccb_h.status = CAM_REQ_CMP;
}
atp->dead = 1;
ccb->ccb_h.status = CAM_REQ_CMP;
rls_lun_statep(isp, tptr);
}
static void
@ -4519,7 +4523,7 @@ isp_action(struct cam_sim *sim, union ccb *ccb)
switch (accb->ccb_h.func_code) {
#ifdef ISP_TARGET_MODE
case XPT_ACCEPT_TARGET_IO:
isp_target_mark_aborted(isp, accb);
isp_target_mark_aborted(isp, ccb);
break;
#endif
case XPT_SCSI_IO: