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Initial support for PERSISTENT_RESERVER_OUT and add a simple test to show the api

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This commit is contained in:
Ronnie Sahlberg
2012-12-17 21:25:46 -08:00
parent d324a94051
commit 2a74fc00bc
11 changed files with 296 additions and 3 deletions
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10
include/iscsi.h
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@@ -778,6 +778,11 @@ iscsi_persistent_reserve_in_task(struct iscsi_context *iscsi, int lun,
int sa, uint16_t xferlen,
iscsi_command_cb cb, void *private_data);
EXTERN struct scsi_task *
iscsi_persistent_reserve_out_task(struct iscsi_context *iscsi, int lun,
int sa, int scope, int type, void *params,
iscsi_command_cb cb, void *private_data);
EXTERN struct scsi_task *
iscsi_unmap_task(struct iscsi_context *iscsi, int lun, int anchor, int group,
struct unmap_list *list, int list_len,
@@ -953,6 +958,11 @@ iscsi_writesame16_sync(struct iscsi_context *iscsi, int lun,
EXTERN struct scsi_task *
iscsi_persistent_reserve_in_sync(struct iscsi_context *iscsi, int lun,
int sa, uint16_t xferlen);
EXTERN struct scsi_task *
iscsi_persistent_reserve_out_sync(struct iscsi_context *iscsi, int lun,
int sa, int scope, int type, void *params);
EXTERN struct scsi_task *
iscsi_unmap_sync(struct iscsi_context *iscsi, int lun, int anchor, int group,
struct unmap_list *list, int list_len);

38
include/scsi-lowlevel.h
View File

@@ -48,7 +48,8 @@ enum scsi_opcode {
SCSI_OPCODE_WRITE_SAME10 = 0x41,
SCSI_OPCODE_UNMAP = 0x42,
SCSI_OPCODE_READTOC = 0x43,
SCSI_OPCODE_PERSISTENT_RESERVE_IN = 0x5E,
SCSI_OPCODE_PERSISTENT_RESERVE_IN = 0x5E,
SCSI_OPCODE_PERSISTENT_RESERVE_OUT = 0x5F,
SCSI_OPCODE_READ16 = 0x88,
SCSI_OPCODE_COMPARE_AND_WRITE = 0x89,
SCSI_OPCODE_WRITE16 = 0x8A,
@@ -79,6 +80,38 @@ enum scsi_service_action_in {
SCSI_GET_LBA_STATUS = 0x12
};
enum scsi_persistent_out_sa {
SCSI_PERSISTENT_RESERVE_REGISTER = 0,
SCSI_PERSISTENT_RESERVE_RESERVE = 1,
SCSI_PERSISTENT_RESERVE_RELEASE = 2,
SCSI_PERSISTENT_RESERVE_CLEAR = 3,
SCSI_PERSISTENT_RESERVE_PREEMPT = 4,
SCSI_PERSISTENT_RESERVE_PREEMPT_AND_ABORT = 5,
SCSI_PERSISTENT_RESERVE_REGISTER_AND_IGNORE_EXISTING_KEY = 6,
SCSI_PERSISTENT_RESERVE_REGISTER_AND_MOVE = 7
};
enum scsi_persistent_out_scope {
SCSI_PERSISTENT_RESERVE_SCOPE_LU = 0
};
enum scsi_persistent_out_type {
SCSI_PERSISTENT_RESERVE_TYPE_WRITE_EXCLUSIVE = 1,
SCSI_PERSISTENT_RESERVE_TYPE_EXCLUSIVE_ACCESS = 3,
SCSI_PERSISTENT_RESERVE_TYPE_WRITE_EXCLUSIVE_REGISTRANTS_ONLY = 5,
SCSI_PERSISTENT_RESERVE_TYPE_EXCLUSIVE_ACCESS_REGISTRANTS_ONLY = 6,
SCSI_PERSISTENT_RESERVE_TYPE_WRITE_EXCLUSIVE_ALL_REGISTRANTS = 7,
SCSI_PERSISTENT_RESERVE_TYPE_EXCLUSIVE_ACCESS_ALL_REGISTRANTS = 8
};
struct scsi_persistent_reserve_out_basic {
uint64_t reservation_key;
uint64_t service_action_reservation_key;
uint8_t spec_i_pt;
uint8_t all_tg_pt;
uint8_t aptpl;
};
enum scsi_maintenance_in {
SCSI_REPORT_SUPPORTED_OP_CODES = 0x0c
};
@@ -146,7 +179,7 @@ enum scsi_readtoc_fmt {
SCSI_READ_PMA = 3,
SCSI_READ_ATIP = 4
};
struct scsi_readtoc_desc{
struct scsi_readtoc_desc {
union {
struct scsi_toc_desc {
int adr;
@@ -735,6 +768,7 @@ EXTERN struct scsi_task *scsi_cdb_readcapacity16(void);
EXTERN struct scsi_task *scsi_cdb_get_lba_status(uint64_t starting_lba, uint32_t alloc_len);
EXTERN struct scsi_task *scsi_cdb_unmap(int anchor, int group, uint16_t xferlen);
EXTERN struct scsi_task *scsi_cdb_persistent_reserve_in(enum scsi_persistent_in_sa sa, uint16_t xferlen);
EXTERN struct scsi_task *scsi_cdb_persistent_reserve_out(enum scsi_persistent_out_sa sa, enum scsi_persistent_out_scope scope, enum scsi_persistent_out_type type, void *params);
EXTERN struct scsi_task *scsi_cdb_writesame10(int wrprotect, int anchor, int unmap, int pbdata, int lbdata, uint32_t lba, int group, uint16_t num_blocks);
EXTERN struct scsi_task *scsi_cdb_writesame16(int wrprotect, int anchor, int unmap, int pbdata, int lbdata, uint64_t lba, int group, uint32_t num_blocks);
EXTERN struct scsi_task *scsi_cdb_prefetch10(uint32_t lba, int num_blocks, int immed, int group);