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ISCSI fix broken send logic in iscsi_scsi_async_command [v2]

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This fixes the IMMEDIATE_DATA_YES case if the paylaod did
not fit into the first PDU and fixes no unsolicited data
sent out iff IMMEDIATE_DATA_NO and INITIAL_R2T_NO.

Signed-off-by: Peter Lieven <pl@kamp.de>
This commit is contained in:
Peter Lieven
2012-11-30 21:06:39 +01:00
parent 30df192634
commit 92114f5d7a
1 changed files with 6 additions and 2 deletions
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8
lib/iscsi-command.c
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@@ -207,6 +207,7 @@ iscsi_scsi_command_async(struct iscsi_context *iscsi, int lun,
if (len > iscsi->first_burst_length) {
len = iscsi->first_burst_length;
flags &= ~ISCSI_PDU_SCSI_FINAL;
}
pdu->out_offset = 0;
@@ -253,8 +254,11 @@ iscsi_scsi_command_async(struct iscsi_context *iscsi, int lun,
}
/* Can we send some unsolicited data ? */
if (pdu->out_len != 0 && iscsi->use_initial_r2t == ISCSI_INITIAL_R2T_NO && iscsi->use_immediate_data == ISCSI_IMMEDIATE_DATA_NO) {
uint32_t len = task->expxferlen - pdu->out_len;
if (task->xfer_dir == SCSI_XFER_WRITE
&& iscsi->use_initial_r2t == ISCSI_INITIAL_R2T_NO
&& iscsi->use_immediate_data == ISCSI_IMMEDIATE_DATA_NO) {
uint32_t len = task->expxferlen;
if (len > iscsi->first_burst_length) {
len = iscsi->first_burst_length;