Author: mav
Date: Sun Sep 13 20:22:18 2015
New Revision: 287764
URL: https://svnweb.freebsd.org/changeset/base/287764
Log:
Implement iSCSI TARGET COLD RESET task management function.
Implement it as CTL_TASK_TARGET_RESET plus termination of all sessions.
Modified:
head/sys/cam/ctl/ctl_frontend_iscsi.c
Modified: head/sys/cam/ctl/ctl_frontend_iscsi.c
==============================================================================
--- head/sys/cam/ctl/ctl_frontend_iscsi.c Sun Sep 13 19:17:26 2015
(r287763)
+++ head/sys/cam/ctl/ctl_frontend_iscsi.c Sun Sep 13 20:22:18 2015
(r287764)
@@ -651,6 +651,12 @@ cfiscsi_pdu_handle_task_request(struct i
#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;
default:
CFISCSI_SESSION_DEBUG(cs, "unsupported function 0x%x",
bhstmr->bhstmr_function & ~0x80);
@@ -2842,7 +2848,9 @@ cfiscsi_task_management_done(union ctl_i
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_i
}
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_i
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
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