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[SCSI] hpsa: add ioaccel mode 2 structure definitions

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Signed-off-by: Mike Miller <michael.miller@canonical.com>
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Mike Miller 2014-02-18 13:56:04 -06:00 committed by James Bottomley
parent 0e7a7fcea0
commit b66cc250ee
3 changed files with 129 additions and 0 deletions
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22
drivers/scsi/hpsa.c
View file

@ -6133,6 +6133,28 @@ static void __exit hpsa_cleanup(void)
static void __attribute__((unused)) verify_offsets(void)
{
#define VERIFY_OFFSET(member, offset) \
BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
VERIFY_OFFSET(IU_type, 0);
VERIFY_OFFSET(direction, 1);
VERIFY_OFFSET(reply_queue, 2);
/* VERIFY_OFFSET(reserved1, 3); */
VERIFY_OFFSET(scsi_nexus, 4);
VERIFY_OFFSET(Tag, 8);
VERIFY_OFFSET(cdb, 16);
VERIFY_OFFSET(cciss_lun, 32);
VERIFY_OFFSET(data_len, 40);
VERIFY_OFFSET(cmd_priority_task_attr, 44);
VERIFY_OFFSET(sg_count, 45);
/* VERIFY_OFFSET(reserved3 */
VERIFY_OFFSET(err_ptr, 48);
VERIFY_OFFSET(err_len, 56);
/* VERIFY_OFFSET(reserved4 */
VERIFY_OFFSET(sg, 64);
#undef VERIFY_OFFSET
#define VERIFY_OFFSET(member, offset) \
BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)

8
drivers/scsi/hpsa.h
View file

@ -258,6 +258,14 @@ struct ctlr_info {
#define HPSA_INTR_ON 1
#define HPSA_INTR_OFF 0
/*
* Inbound Post Queue offsets for IO Accelerator Mode 2
*/
#define IOACCEL2_INBOUND_POSTQ_32 0x48
#define IOACCEL2_INBOUND_POSTQ_64_LOW 0xd0
#define IOACCEL2_INBOUND_POSTQ_64_HI 0xd4
/*
Send the command to the hardware
*/

99
drivers/scsi/hpsa_cmd.h
View file

@ -332,6 +332,7 @@ struct ErrorInfo {
#define CMD_IOCTL_PEND 0x01
#define CMD_SCSI 0x03
#define CMD_IOACCEL1 0x04
#define CMD_IOACCEL2 0x05
#define DIRECT_LOOKUP_SHIFT 5
#define DIRECT_LOOKUP_BIT 0x10
@ -384,6 +385,7 @@ struct CommandList {
/* Max S/G elements in I/O accelerator command */
#define IOACCEL1_MAXSGENTRIES 24
#define IOACCEL2_MAXSGENTRIES 28
/*
* Structure for I/O accelerator (mode 1) commands.
@ -444,6 +446,103 @@ struct io_accel1_cmd {
#define IOACCEL1_BUSADDR_CMDTYPE 0x00000060
struct ioaccel2_sg_element {
u64 address;
u32 length;
u8 reserved[3];
u8 chain_indicator;
#define IOACCEL2_CHAIN 0x80
};
/*
* SCSI Response Format structure for IO Accelerator Mode 2
*/
struct io_accel2_scsi_response {
u8 IU_type;
#define IOACCEL2_IU_TYPE_SRF 0x60
u8 reserved1[3];
u8 req_id[4]; /* request identifier */
u8 reserved2[4];
u8 serv_response; /* service response */
#define IOACCEL2_SERV_RESPONSE_COMPLETE 0x000
#define IOACCEL2_SERV_RESPONSE_FAILURE 0x001
#define IOACCEL2_SERV_RESPONSE_TMF_COMPLETE 0x002
#define IOACCEL2_SERV_RESPONSE_TMF_SUCCESS 0x003
#define IOACCEL2_SERV_RESPONSE_TMF_REJECTED 0x004
#define IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN 0x005
u8 status; /* status */
#define IOACCEL2_STATUS_SR_TASK_COMP_GOOD 0x00
#define IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND 0x02
#define IOACCEL2_STATUS_SR_TASK_COMP_BUSY 0x08
#define IOACCEL2_STATUS_SR_TASK_COMP_RES_CON 0x18
#define IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL 0x28
#define IOACCEL2_STATUS_SR_TASK_COMP_ABORTED 0x40
u8 data_present; /* low 2 bits */
#define IOACCEL2_NO_DATAPRESENT 0x000
#define IOACCEL2_RESPONSE_DATAPRESENT 0x001
#define IOACCEL2_SENSE_DATA_PRESENT 0x002
#define IOACCEL2_RESERVED 0x003
u8 sense_data_len; /* sense/response data length */
u8 resid_cnt[4]; /* residual count */
u8 sense_data_buff[32]; /* sense/response data buffer */
};
#define IOACCEL2_64_PAD 76
#define IOACCEL2_32_PAD 76
#define IOACCEL2_PAD (IS_32_BIT * IOACCEL2_32_PAD + \
IS_64_BIT * IOACCEL2_64_PAD)
/*
* Structure for I/O accelerator (mode 2 or m2) commands.
* Note that this structure must be 128-byte aligned in size.
*/
struct io_accel2_cmd {
u8 IU_type; /* IU Type */
u8 direction; /* Transfer direction, 2 bits */
u8 reply_queue; /* Reply Queue ID */
u8 reserved1; /* Reserved */
u32 scsi_nexus; /* Device Handle */
struct vals32 Tag; /* cciss tag */
u8 cdb[16]; /* SCSI Command Descriptor Block */
u8 cciss_lun[8]; /* 8 byte SCSI address */
u32 data_len; /* Total bytes to transfer */
u8 cmd_priority_task_attr; /* priority and task attrs */
#define IOACCEL2_PRIORITY_MASK 0x78
#define IOACCEL2_ATTR_MASK 0x07
u8 sg_count; /* Number of sg elements */
u8 reserved3[2]; /* Reserved */
u64 err_ptr; /* Error Pointer */
u32 err_len; /* Error Length*/
u8 reserved4[4]; /* Reserved */
struct ioaccel2_sg_element sg[IOACCEL2_MAXSGENTRIES];
struct io_accel2_scsi_response error_data;
u8 pad[IOACCEL2_PAD];
};
/*
* defines for Mode 2 command struct
* FIXME: this can't be all I need mfm
*/
#define IOACCEL2_IU_TYPE 0x40
#define IU_TYPE_TMF 0x41
#define IOACCEL2_DIR_NO_DATA 0x00
#define IOACCEL2_DIR_DATA_IN 0x01
#define IOACCEL2_DIR_DATA_OUT 0x02
/*
* SCSI Task Management Request format for Accelerator Mode 2
*/
struct hpsa_tmf_struct {
u8 iu_type; /* Information Unit Type */
u8 reply_queue; /* Reply Queue ID */
u8 tmf; /* Task Management Function */
u8 reserved1; /* byte 3 Reserved */
u32 it_nexus; /* SCSI I-T Nexus */
u8 lun_id[8]; /* LUN ID for TMF request */
struct vals32 Tag; /* cciss tag associated w/ request */
struct vals32 abort_tag;/* cciss tag of SCSI cmd or task to abort */
u64 error_ptr; /* Error Pointer */
u32 error_len; /* Error Length */
};
/* Configuration Table Structure */
struct HostWrite {
u32 TransportRequest;