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[SCSI] iscsi: increment expstatsn during login

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debugged by Ming and Rohan:

The problem Ming and Rohan debugged was that during a normal session
login, open-iscsi is not incrementing the exp_statsn counter. It was
stuck at zero. From the RFC, it looks like if the login response PDU has
a successful status then we should be incrementing that value. Also from
the RFC, it looks like if when we drop a connection then reconnect, we
should be using the exp_statsn from the old connection in the next
relogin attempt.

Signed-off-by: Mike Christie <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Mike Christie 2006-05-02 19:46:47 -05:00 • committed by James Bottomley
commit 8d2860b3c3
4 changed files with 32 additions and 21 deletions
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2
include/scsi/iscsi_if.h
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@ -188,6 +188,7 @@ enum iscsi_param {
ISCSI_PARAM_ERL,
ISCSI_PARAM_IFMARKER_EN,
ISCSI_PARAM_OFMARKER_EN,
ISCSI_PARAM_EXP_STATSN,
ISCSI_PARAM_TARGET_NAME,
ISCSI_PARAM_TPGT,
ISCSI_PARAM_PERSISTENT_ADDRESS,
@ -216,6 +217,7 @@ enum iscsi_param {
#define ISCSI_ERL (1 << ISCSI_PARAM_ERL)
#define ISCSI_IFMARKER_EN (1 << ISCSI_PARAM_IFMARKER_EN)
#define ISCSI_OFMARKER_EN (1 << ISCSI_PARAM_OFMARKER_EN)
#define ISCSI_EXP_STATSN (1 << ISCSI_PARAM_EXP_STATSN)
#define ISCSI_TARGET_NAME (1 << ISCSI_PARAM_TARGET_NAME)
#define ISCSI_TPGT (1 << ISCSI_PARAM_TPGT)
#define ISCSI_PERSISTENT_ADDRESS (1 << ISCSI_PARAM_PERSISTENT_ADDRESS)