diff options
| author |   Christoph Hellwig <hch@infradead.org> | 2012-10-10 17:37:15 -0400 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2012-11-06 20:55:45 -0800 |
| commit | d977f4377fbc396b888e12fdb3b13118b09ca7db (patch) | |
| tree | f3de282b1df951ec599908e24590dbcbac5b9047 /include/target/target_core_base.h | |
| parent | target: kill dev->dev_task_attr_type (diff) | |
| download | linux-dev-d977f4377fbc396b888e12fdb3b13118b09ca7db.tar.xz linux-dev-d977f4377fbc396b888e12fdb3b13118b09ca7db.zip | |
target: simplify reservations code
We do not support host-level reservations for the pscsi backend, and all
virtual backends are newere than SCSI-2, so just make the combined
SPC-3 + SCSI-2 support the only supported variant and kill the switches
for the different implementations, given that this code handles the no-op
version just fine.
(hch: Update DRF_SPC2_RESERVATIONS lock usage)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/target/target_core_base.h')
| -rw-r--r-- | include/target/target_core_base.h | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 15af1307d064..892a93dec19c 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -93,8 +93,6 @@ */ #define DA_EMULATE_TPWS 0 /* No Emulation for PSCSI by default */ -#define DA_EMULATE_RESERVATIONS 0 -/* No Emulation for PSCSI by default */ #define DA_EMULATE_ALUA 0 /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ #define DA_ENFORCE_PR_ISIDS 1 @@ -333,18 +331,6 @@ struct t10_wwn { struct list_head t10_vpd_list; }; - -/* - * Used by TCM Core internally to signal if >= SPC-3 persistent reservations - * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough - * mode - */ -typedef enum { - SPC_PASSTHROUGH, - SPC2_RESERVATIONS, - SPC3_PERSISTENT_RESERVATIONS -} t10_reservations_index_t; - struct t10_pr_registration { /* Used for fabrics that contain WWN+ISID */ #define PR_REG_ISID_LEN 16 @@ -386,18 +372,6 @@ struct t10_pr_registration { struct list_head pr_reg_atp_mem_list; }; -/* - * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, - * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c: - * core_setup_reservations() - */ -struct t10_reservation_ops { - int (*t10_reservation_check)(struct se_cmd *, u32 *); - int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); - int (*t10_pr_register)(struct se_cmd *); - int (*t10_pr_clear)(struct se_cmd *); -}; - struct t10_reservation { /* Reservation effects all target ports */ int pr_all_tg_pt; @@ -408,7 +382,6 @@ struct t10_reservation { #define PR_APTPL_BUF_LEN 8192 u32 pr_aptpl_buf_len; u32 pr_generation; - t10_reservations_index_t res_type; spinlock_t registration_lock; spinlock_t aptpl_reg_lock; /* @@ -424,7 +397,6 @@ struct t10_reservation { struct se_node_acl *pr_res_holder; struct list_head registration_list; struct list_head aptpl_reg_list; - struct t10_reservation_ops pr_ops; }; struct se_tmr_req { @@ -633,7 +605,6 @@ struct se_dev_attrib { int emulate_tas; int emulate_tpu; int emulate_tpws; - int emulate_reservations; int emulate_alua; int enforce_pr_isids; int is_nonrot; |