From b31dae0caa0286820805951842fa871f71b33d75 Mon Sep 17 00:00:00 2001 From: Alexander Motin Date: Sun, 24 Jan 2021 13:58:29 -0500 Subject: Exclude reserved iSCSI Target Transfer Tag. RFC 7143 (11.7.4): The Target Transfer Tag values are not specified by this protocol, except that the value 0xffffffff is reserved and means that the Target Transfer Tag is not supplied. MFC after: 1 month --- sys/cam/ctl/ctl_frontend_iscsi.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sys/cam/ctl/ctl_frontend_iscsi.c') diff --git a/sys/cam/ctl/ctl_frontend_iscsi.c b/sys/cam/ctl/ctl_frontend_iscsi.c index 996ab4e44fc0..8b0effcaf393 100644 --- a/sys/cam/ctl/ctl_frontend_iscsi.c +++ b/sys/cam/ctl/ctl_frontend_iscsi.c @@ -2693,6 +2693,10 @@ cfiscsi_datamove_out(union ctl_io *io) target_transfer_tag = atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1); + if (target_transfer_tag == 0xffffffff) { + target_transfer_tag = + atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1); + } cdw = cfiscsi_data_wait_new(cs, io, bhssc->bhssc_initiator_task_tag, &target_transfer_tag); if (cdw == NULL) { -- cgit v1.2.3