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Implement iSCSI TARGET COLD RESET task management function.

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Implement it as CTL_TASK_TARGET_RESET plus termination of all sessions.
This commit is contained in:
Alexander Motin 2015-09-13 20:22:18 +00:00
parent cf52bbe053
commit 4cbc0bc5ae
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=287764
1 changed files with 23 additions and 1 deletions
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24
sys/cam/ctl/ctl_frontend_iscsi.c
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@ -648,6 +648,12 @@ cfiscsi_pdu_handle_task_request(struct icl_pdu *request)
case BHSTMR_FUNCTION_TARGET_WARM_RESET:
#if 0
CFISCSI_SESSION_DEBUG(cs, "BHSTMR_FUNCTION_TARGET_WARM_RESET");
#endif
io->taskio.task_action = CTL_TASK_TARGET_RESET;
break;
case BHSTMR_FUNCTION_TARGET_COLD_RESET:
#if 0
CFISCSI_SESSION_DEBUG(cs, "BHSTMR_FUNCTION_TARGET_COLD_RESET");
#endif
io->taskio.task_action = CTL_TASK_TARGET_RESET;
break;
@ -2842,7 +2848,9 @@ cfiscsi_task_management_done(union ctl_io *io)
struct iscsi_bhs_task_management_request *bhstmr;
struct iscsi_bhs_task_management_response *bhstmr2;
struct cfiscsi_data_wait *cdw, *tmpcdw;
struct cfiscsi_session *cs;
struct cfiscsi_session *cs, *tcs;
struct cfiscsi_softc *softc;
int cold_reset = 0;
request = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
cs = PDU_SESSION(request);
@ -2880,6 +2888,10 @@ cfiscsi_task_management_done(union ctl_io *io)
}
CFISCSI_SESSION_UNLOCK(cs);
}
if ((bhstmr->bhstmr_function & ~0x80) ==
BHSTMR_FUNCTION_TARGET_COLD_RESET &&
io->io_hdr.status == CTL_SUCCESS)
cold_reset = 1;
response = cfiscsi_pdu_new_response(request, M_WAITOK);
bhstmr2 = (struct iscsi_bhs_task_management_response *)
@ -2903,6 +2915,16 @@ cfiscsi_task_management_done(union ctl_io *io)
ctl_free_io(io);
icl_pdu_free(request);
cfiscsi_pdu_queue(response);
if (cold_reset) {
softc = cs->cs_target->ct_softc;
mtx_lock(&softc->lock);
TAILQ_FOREACH(tcs, &softc->sessions, cs_next) {
if (tcs->cs_target == cs->cs_target)
cfiscsi_session_terminate(tcs);
}
mtx_unlock(&softc->lock);
}
}
static void