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iscsi/iser-target: Support multi-sequence sendtargets text response

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In case sendtargets response is larger than initiator MRDSL, we
send a partial sendtargets response (setting F=0, C=1, TTT!=0xffffffff),
accept a consecutive empty text message and send the rest of the payload.
In case we are done, we set F=1, C=0, TTT=0xffffffff.
We do that by storing the sendtargets response bytes done under
the session.

This patch also makes iscsit_find_cmd_from_itt public for isert.

(Re-add cmd->maxcmdsn_inc and clear in iscsit_build_text_rsp - nab)

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Sagi Grimberg
2015-02-09 18:07:25 +02:00
committed by Nicholas Bellinger
parent 11378cdbb6
commit e4f4e8016e
5 changed files with 82 additions and 26 deletions
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include/target/iscsi/iscsi_target_core.h
+1
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@@ -893,4 +893,5 @@ static inline u32 session_get_next_ttt(struct iscsi_session *session)
return ttt;
}
extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
#endif /* ISCSI_TARGET_CORE_H */