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target: simplify alua support

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We always support ALUA for virtual backends, and never for physical ones.  Simplify
the code to just deal with these two cases and remove the superflous abstractions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2012-10-10 17:37:16 -04:00
committed by Nicholas Bellinger
parent d977f4377f
commit c87fbd5656
7 changed files with 65 additions and 166 deletions
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include/target/target_core_base.h
-13
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@@ -220,16 +220,6 @@ enum tcm_tmrsp_table {
TMR_FUNCTION_REJECTED = 255,
};
/*
* Used by TCM Core internally to signal if ALUA emulation is enabled or
* disabled, or running in with TCM/pSCSI passthrough mode
*/
typedef enum {
SPC_ALUA_PASSTHROUGH,
SPC2_ALUA_DISABLED,
SPC3_ALUA_EMULATED
} t10_alua_index_t;
/*
* Used for target SCSI statistics
*/
@@ -243,7 +233,6 @@ typedef enum {
struct se_cmd;
struct t10_alua {
t10_alua_index_t alua_type;
/* ALUA Target Port Group ID */
u16 alua_tg_pt_gps_counter;
u32 alua_tg_pt_gps_count;
@@ -253,7 +242,6 @@ struct t10_alua {
struct t10_alua_tg_pt_gp *default_tg_pt_gp;
/* Used for default ALUA Target Port Group ConfigFS group */
struct config_group alua_tg_pt_gps_group;
int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
struct list_head tg_pt_gps_list;
};
@@ -605,7 +593,6 @@ struct se_dev_attrib {
int emulate_tas;
int emulate_tpu;
int emulate_tpws;
int emulate_alua;
int enforce_pr_isids;
int is_nonrot;
int emulate_rest_reord;