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[SCSI] libiscsi, iscsi_tcp, iser: add session cmds array accessor

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Currently to get a ctask from the session cmd array, you have to
know to use the itt modifier. To make this easier on LLDs and
so in the future we can easilly kill the session array and use
the host shared map instead, this patch adds a nice wrapper
to strip the itt into a session->cmds index and return a ctask.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Mike Christie
2008-05-21 15:54:04 -05:00
committed by James Bottomley
parent b40977d95f
commit 0af967f5d4
5 changed files with 65 additions and 43 deletions
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8
drivers/infiniband/ulp/iser/iscsi_iser.c
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@@ -98,7 +98,6 @@ iscsi_iser_recv(struct iscsi_conn *conn,
struct iscsi_hdr *hdr, char *rx_data, int rx_data_len)
{
int rc = 0;
uint32_t ret_itt;
int datalen;
int ahslen;
@@ -114,12 +113,7 @@ iscsi_iser_recv(struct iscsi_conn *conn,
/* read AHS */
ahslen = hdr->hlength * 4;
/* verify itt (itt encoding: age+cid+itt) */
rc = iscsi_verify_itt(conn, hdr, &ret_itt);
if (!rc)
rc = iscsi_complete_pdu(conn, hdr, rx_data, rx_data_len);
rc = iscsi_complete_pdu(conn, hdr, rx_data, rx_data_len);
if (rc && rc != ISCSI_ERR_NO_SCSI_CMD)
goto error;