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Exclude reserved iSCSI Target Transfer Tag.

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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
This commit is contained in:
Alexander Motin 2021-01-24 13:58:29 -05:00
parent 7680431a38
commit b31dae0caa
1 changed files with 4 additions and 0 deletions
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4
sys/cam/ctl/ctl_frontend_iscsi.c
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@ -2693,6 +2693,10 @@ cfiscsi_datamove_out(union ctl_io *io)
target_transfer_tag = target_transfer_tag =
atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1); 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, cdw = cfiscsi_data_wait_new(cs, io, bhssc->bhssc_initiator_task_tag,
&target_transfer_tag); &target_transfer_tag);
if (cdw == NULL) { if (cdw == NULL) {