Date: Tue, 23 Feb 2021 00:33:25 GMT From: Alexander Motin <mav@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 0004227346d0 - stable/12 - Exclude reserved iSCSI Initiator Task Tag. Message-ID: <202102230033.11N0XPjC062875@gitrepo.freebsd.org>
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The branch stable/12 has been updated by mav: URL: https://cgit.FreeBSD.org/src/commit/?id=0004227346d0ceea713b456300794d55e787a5e6 commit 0004227346d0ceea713b456300794d55e787a5e6 Author: Alexander Motin <mav@FreeBSD.org> AuthorDate: 2021-01-24 19:23:04 +0000 Commit: Alexander Motin <mav@FreeBSD.org> CommitDate: 2021-02-23 00:33:20 +0000 Exclude reserved iSCSI Initiator Task Tag. RFC 7143 (11.2.1.8): An ITT value of 0xffffffff is reserved and MUST NOT be assigned for a task by the initiator. The only instance in which it may be seen on the wire is in a target-initiated NOP-In PDU (Section 11.19) and in the initiator response to that PDU, if necessary. MFC after: 1 month --- sys/dev/iscsi/iscsi.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/dev/iscsi/iscsi.c b/sys/dev/iscsi/iscsi.c index f0ba48fa7a67..0c891a32feea 100644 --- a/sys/dev/iscsi/iscsi.c +++ b/sys/dev/iscsi/iscsi.c @@ -2194,6 +2194,8 @@ iscsi_action_abort(struct iscsi_session *is, union ccb *ccb) } initiator_task_tag = is->is_initiator_task_tag++; + if (initiator_task_tag == 0xffffffff) + initiator_task_tag = is->is_initiator_task_tag++; io = iscsi_outstanding_add(is, request, NULL, &initiator_task_tag); if (io == NULL) { @@ -2254,6 +2256,9 @@ iscsi_action_scsiio(struct iscsi_session *is, union ccb *ccb) } initiator_task_tag = is->is_initiator_task_tag++; + if (initiator_task_tag == 0xffffffff) + initiator_task_tag = is->is_initiator_task_tag++; + io = iscsi_outstanding_add(is, request, ccb, &initiator_task_tag); if (io == NULL) { icl_pdu_free(request);
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