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RECONNECT do not increase CmdSN for immediate PDUs

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Immediate PDUs such as queued NOP-Outs will cause
a protocol error on reconnect.

Signed-off-by: Peter Lieven <pl@kamp.de>
This commit is contained in:
Peter Lieven
2012-11-29 15:17:30 +01:00
parent 5da6ea7275
commit 14bee1007f
1 changed files with 6 additions and 2 deletions
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8
lib/connect.c
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@@ -282,7 +282,9 @@ try_again:
pdu->itt = iscsi_itt_post_increment(iscsi);
iscsi_pdu_set_itt(pdu, pdu->itt);
pdu->cmdsn = iscsi->cmdsn++;
/* do not increase cmdsn for PDUs marked for immediate delivery
* this will result in a protocol error */
pdu->cmdsn = (pdu->outdata.data[0] & ISCSI_PDU_IMMEDIATE)?iscsi->cmdsn:iscsi->cmdsn++;
iscsi_pdu_set_cmdsn(pdu, pdu->cmdsn);
iscsi_pdu_set_expstatsn(pdu, iscsi->statsn);
@@ -312,7 +314,9 @@ try_again:
pdu->itt = iscsi_itt_post_increment(iscsi);
iscsi_pdu_set_itt(pdu, pdu->itt);
pdu->cmdsn = iscsi->cmdsn++;
/* do not increase cmdsn for PDUs marked for immediate delivery
* this will result in a protocol error */
pdu->cmdsn = (pdu->outdata.data[0] & ISCSI_PDU_IMMEDIATE)?iscsi->cmdsn:iscsi->cmdsn++;
iscsi_pdu_set_cmdsn(pdu, pdu->cmdsn);
iscsi_pdu_set_expstatsn(pdu, iscsi->statsn);