From 262ef63627977acb7d8dd38c4f0f290bf49fbbfd Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Tue, 2 Dec 2008 00:32:13 -0600
Subject: [SCSI] libiscsi: allow drivers to modify the itt sent to the target
bnx2i and cxgb3i need to encode LLD info in the itt so that
the firmware/hardware can process the pdu. This patch allows
the LLDs to encode info in the task->hdr->itt that they
setup in the alloc_pdu callout (any resources that are allocated
can be freed with the pdu in the cleanup_task callout). If
the LLD encodes info in the itt they should implement a
parse_pdu_itt callout. If parse_pdu_itt is not implemented
libiscsi will do the right thing for the LLD.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
include/scsi/scsi_transport_iscsi.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include/scsi/scsi_transport_iscsi.h')
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index c928234c018f..e13cb20f1eae 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -122,6 +122,9 @@ struct iscsi_transport {
int (*xmit_pdu) (struct iscsi_task *task);
int (*init_pdu) (struct iscsi_task *task, unsigned int offset,
unsigned int count);
+ void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt,
+ int *index, int *age);
+
void (*session_recovery_timedout) (struct iscsi_cls_session *session);
struct iscsi_endpoint *(*ep_connect) (struct sockaddr *dst_addr,
int non_blocking);
--
cgit