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iscsi/isert-target: Refactor ISCSI_OP_NOOP RX handling

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This patch refactors ISCSI_OP_NOOP handling within iscsi-target in
order to handle iscsi_nopout payloads in a transport specific manner.

This includes splitting existing iscsit_handle_nop_out() into
iscsit_setup_nop_out() and iscsit_process_nop_out() calls, and
makes iscsit_handle_nop_out() be only used internally by traditional
iscsi socket calls.

Next update iser-target code to use new callers and add FIXME for
the handling iscsi_nopout payloads.  Also fix reject response handling
in iscsit_setup_nop_out() to use proper iscsit_add_reject_from_cmd().

v2: Fix uninitialized iscsit_handle_nop_out() payload_length usage (Fengguang)
v3: Remove left-over dead code in iscsit_setup_nop_out() (DanC)

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger
2013-06-14 16:07:47 -07:00
parent 08234e3adc
commit 778de36896
3 changed files with 115 additions and 88 deletions
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6
include/target/iscsi/iscsi_transport.h
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@@ -45,8 +45,10 @@ extern int iscsit_check_dataout_hdr(struct iscsi_conn *, unsigned char *,
struct iscsi_cmd **);
extern int iscsit_check_dataout_payload(struct iscsi_cmd *, struct iscsi_data *,
bool);
extern int iscsit_handle_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
unsigned char *);
extern int iscsit_setup_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
struct iscsi_nopout *);
extern int iscsit_process_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
struct iscsi_nopout *);
extern int iscsit_handle_logout_cmd(struct iscsi_conn *, struct iscsi_cmd *,
unsigned char *);
extern int iscsit_handle_task_mgt_cmd(struct iscsi_conn *, struct iscsi_cmd *,