[net-next-2.6.git] / include / scsi / sas.h

/*
 * SAS structures and definitions header file
 *
 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
 *
 * This file is licensed under GPLv2.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 */

#ifndef _SAS_H_
#define _SAS_H_

#include <linux/types.h>
#include <asm/byteorder.h>

#define SAS_ADDR_SIZE        8
#define HASHED_SAS_ADDR_SIZE 3
#define SAS_ADDR(_sa) ((unsigned long long) be64_to_cpu(*(__be64 *)(_sa)))

#define SMP_REQUEST             0x40
#define SMP_RESPONSE            0x41

#define SSP_DATA                0x01
#define SSP_XFER_RDY            0x05
#define SSP_COMMAND             0x06
#define SSP_RESPONSE            0x07
#define SSP_TASK                0x16

#define SMP_REPORT_GENERAL       0x00
#define SMP_REPORT_MANUF_INFO    0x01
#define SMP_READ_GPIO_REG        0x02
#define SMP_DISCOVER             0x10
#define SMP_REPORT_PHY_ERR_LOG   0x11
#define SMP_REPORT_PHY_SATA      0x12
#define SMP_REPORT_ROUTE_INFO    0x13
#define SMP_WRITE_GPIO_REG       0x82
#define SMP_CONF_ROUTE_INFO      0x90
#define SMP_PHY_CONTROL          0x91
#define SMP_PHY_TEST_FUNCTION    0x92

#define SMP_RESP_FUNC_ACC        0x00
#define SMP_RESP_FUNC_UNK        0x01
#define SMP_RESP_FUNC_FAILED     0x02
#define SMP_RESP_INV_FRM_LEN     0x03
#define SMP_RESP_NO_PHY          0x10
#define SMP_RESP_NO_INDEX        0x11
#define SMP_RESP_PHY_NO_SATA     0x12
#define SMP_RESP_PHY_UNK_OP      0x13
#define SMP_RESP_PHY_UNK_TESTF   0x14
#define SMP_RESP_PHY_TEST_INPROG 0x15
#define SMP_RESP_PHY_VACANT      0x16

/* SAM TMFs */
#define TMF_ABORT_TASK      0x01
#define TMF_ABORT_TASK_SET  0x02
#define TMF_CLEAR_TASK_SET  0x04
#define TMF_LU_RESET        0x08
#define TMF_CLEAR_ACA       0x40
#define TMF_QUERY_TASK      0x80

/* SAS TMF responses */
#define TMF_RESP_FUNC_COMPLETE   0x00
#define TMF_RESP_INVALID_FRAME   0x02
#define TMF_RESP_FUNC_ESUPP      0x04
#define TMF_RESP_FUNC_FAILED     0x05
#define TMF_RESP_FUNC_SUCC       0x08
#define TMF_RESP_NO_LUN          0x09
#define TMF_RESP_OVERLAPPED_TAG  0x0A

enum sas_oob_mode {
	OOB_NOT_CONNECTED,
	SATA_OOB_MODE,
	SAS_OOB_MODE
};

/* See sas_discover.c if you plan on changing these.
 */
enum sas_dev_type {
	NO_DEVICE   = 0,	  /* protocol */
	SAS_END_DEV = 1,	  /* protocol */
	EDGE_DEV    = 2,	  /* protocol */
	FANOUT_DEV  = 3,	  /* protocol */
	SAS_HA      = 4,
	SATA_DEV    = 5,
	SATA_PM     = 7,
	SATA_PM_PORT= 8,
};

enum sas_protocol {
	SAS_PROTOCOL_SATA		= 0x01,
	SAS_PROTOCOL_SMP		= 0x02,
	SAS_PROTOCOL_STP		= 0x04,
	SAS_PROTOCOL_SSP		= 0x08,
	SAS_PROTOCOL_ALL		= 0x0E,
};

/* From the spec; local phys only */
enum phy_func {
	PHY_FUNC_NOP,
	PHY_FUNC_LINK_RESET,		  /* Enables the phy */
	PHY_FUNC_HARD_RESET,
	PHY_FUNC_DISABLE,
	PHY_FUNC_CLEAR_ERROR_LOG = 5,
	PHY_FUNC_CLEAR_AFFIL,
	PHY_FUNC_TX_SATA_PS_SIGNAL,
	PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
	PHY_FUNC_SET_LINK_RATE,
};

/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.
 * Most of those are here for completeness.
 */
enum sas_prim {
	SAS_PRIM_AIP_NORMAL = 1,
	SAS_PRIM_AIP_R0     = 2,
	SAS_PRIM_AIP_R1     = 3,
	SAS_PRIM_AIP_R2     = 4,
	SAS_PRIM_AIP_WC     = 5,
	SAS_PRIM_AIP_WD     = 6,
	SAS_PRIM_AIP_WP     = 7,
	SAS_PRIM_AIP_RWP    = 8,

	SAS_PRIM_BC_CH      = 9,
	SAS_PRIM_BC_RCH0    = 10,
	SAS_PRIM_BC_RCH1    = 11,
	SAS_PRIM_BC_R0      = 12,
	SAS_PRIM_BC_R1      = 13,
	SAS_PRIM_BC_R2      = 14,
	SAS_PRIM_BC_R3      = 15,
	SAS_PRIM_BC_R4      = 16,

	SAS_PRIM_NOTIFY_ENSP= 17,
	SAS_PRIM_NOTIFY_R0  = 18,
	SAS_PRIM_NOTIFY_R1  = 19,
	SAS_PRIM_NOTIFY_R2  = 20,

	SAS_PRIM_CLOSE_CLAF = 21,
	SAS_PRIM_CLOSE_NORM = 22,
	SAS_PRIM_CLOSE_R0   = 23,
	SAS_PRIM_CLOSE_R1   = 24,

	SAS_PRIM_OPEN_RTRY  = 25,
	SAS_PRIM_OPEN_RJCT  = 26,
	SAS_PRIM_OPEN_ACPT  = 27,

	SAS_PRIM_DONE       = 28,
	SAS_PRIM_BREAK      = 29,

	SATA_PRIM_DMAT      = 33,
	SATA_PRIM_PMNAK     = 34,
	SATA_PRIM_PMACK     = 35,
	SATA_PRIM_PMREQ_S   = 36,
	SATA_PRIM_PMREQ_P   = 37,
	SATA_SATA_R_ERR     = 38,
};

enum sas_open_rej_reason {
	/* Abandon open */
	SAS_OREJ_UNKNOWN   = 0,
	SAS_OREJ_BAD_DEST  = 1,
	SAS_OREJ_CONN_RATE = 2,
	SAS_OREJ_EPROTO    = 3,
	SAS_OREJ_RESV_AB0  = 4,
	SAS_OREJ_RESV_AB1  = 5,
	SAS_OREJ_RESV_AB2  = 6,
	SAS_OREJ_RESV_AB3  = 7,
	SAS_OREJ_WRONG_DEST= 8,
	SAS_OREJ_STP_NORES = 9,

	/* Retry open */
	SAS_OREJ_NO_DEST   = 10,
	SAS_OREJ_PATH_BLOCKED = 11,
	SAS_OREJ_RSVD_CONT0 = 12,
	SAS_OREJ_RSVD_CONT1 = 13,
	SAS_OREJ_RSVD_INIT0 = 14,
	SAS_OREJ_RSVD_INIT1 = 15,
	SAS_OREJ_RSVD_STOP0 = 16,
	SAS_OREJ_RSVD_STOP1 = 17,
	SAS_OREJ_RSVD_RETRY = 18,
};

struct  dev_to_host_fis {
	u8     fis_type;	  /* 0x34 */
	u8     flags;
	u8     status;
	u8     error;

	u8     lbal;
	union { u8 lbam; u8 byte_count_low; };
	union { u8 lbah; u8 byte_count_high; };
	u8     device;

	u8     lbal_exp;
	u8     lbam_exp;
	u8     lbah_exp;
	u8     _r_a;

	union { u8  sector_count; u8 interrupt_reason; };
	u8     sector_count_exp;
	u8     _r_b;
	u8     _r_c;

	u32    _r_d;
} __attribute__ ((packed));

struct host_to_dev_fis {
	u8     fis_type;	  /* 0x27 */
	u8     flags;
	u8     command;
	u8     features;

	u8     lbal;
	union { u8 lbam; u8 byte_count_low; };
	union { u8 lbah; u8 byte_count_high; };
	u8     device;

	u8     lbal_exp;
	u8     lbam_exp;
	u8     lbah_exp;
	u8     features_exp;

	union { u8  sector_count; u8 interrupt_reason; };
	u8     sector_count_exp;
	u8     _r_a;
	u8     control;

	u32    _r_b;
} __attribute__ ((packed));

/* Prefer to have code clarity over header file clarity.
 */
#ifdef __LITTLE_ENDIAN_BITFIELD
struct sas_identify_frame {
	/* Byte 0 */
	u8  frame_type:4;
	u8  dev_type:3;
	u8  _un0:1;

	/* Byte 1 */
	u8  _un1;

	/* Byte 2 */
	union {
		struct {
			u8  _un20:1;
			u8  smp_iport:1;
			u8  stp_iport:1;
			u8  ssp_iport:1;
			u8  _un247:4;
		};
		u8 initiator_bits;
	};

	/* Byte 3 */
	union {
		struct {
			u8  _un30:1;
			u8 smp_tport:1;
			u8 stp_tport:1;
			u8 ssp_tport:1;
			u8 _un347:4;
		};
		u8 target_bits;
	};

	/* Byte 4 - 11 */
	u8 _un4_11[8];

	/* Byte 12 - 19 */
	u8 sas_addr[SAS_ADDR_SIZE];

	/* Byte 20 */
	u8 phy_id;

	u8 _un21_27[7];

	__be32 crc;
} __attribute__ ((packed));

struct ssp_frame_hdr {
	u8     frame_type;
	u8     hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
	u8     _r_a;
	u8     hashed_src_addr[HASHED_SAS_ADDR_SIZE];
	__be16 _r_b;

	u8     changing_data_ptr:1;
	u8     retransmit:1;
	u8     retry_data_frames:1;
	u8     _r_c:5;

	u8     num_fill_bytes:2;
	u8     _r_d:6;

	u32    _r_e;
	__be16 tag;
	__be16 tptt;
	__be32 data_offs;
} __attribute__ ((packed));

struct ssp_response_iu {
	u8     _r_a[10];

	u8     datapres:2;
	u8     _r_b:6;

	u8     status;

	u32    _r_c;

	__be32 sense_data_len;
	__be32 response_data_len;

	u8     resp_data[0];
	u8     sense_data[0];
} __attribute__ ((packed));

/* ---------- SMP ---------- */

struct report_general_resp {
	__be16  change_count;
	__be16  route_indexes;
	u8      _r_a;
	u8      num_phys;

	u8      conf_route_table:1;
	u8      configuring:1;
	u8      _r_b:6;

	u8      _r_c;

	u8      enclosure_logical_id[8];

	u8      _r_d[12];
} __attribute__ ((packed));

struct discover_resp {
	u8    _r_a[5];

	u8    phy_id;
	__be16 _r_b;

	u8    _r_c:4;
	u8    attached_dev_type:3;
	u8    _r_d:1;

	u8    linkrate:4;
	u8    _r_e:4;

	u8    attached_sata_host:1;
	u8    iproto:3;
	u8    _r_f:4;

	u8    attached_sata_dev:1;
	u8    tproto:3;
	u8    _r_g:3;
	u8    attached_sata_ps:1;

	u8    sas_addr[8];
	u8    attached_sas_addr[8];
	u8    attached_phy_id;

	u8    _r_h[7];

	u8    hmin_linkrate:4;
	u8    pmin_linkrate:4;
	u8    hmax_linkrate:4;
	u8    pmax_linkrate:4;

	u8    change_count;

	u8    pptv:4;
	u8    _r_i:3;
	u8    virtual:1;

	u8    routing_attr:4;
	u8    _r_j:4;

	u8    conn_type;
	u8    conn_el_index;
	u8    conn_phy_link;

	u8    _r_k[8];
} __attribute__ ((packed));

struct report_phy_sata_resp {
	u8    _r_a[5];

	u8    phy_id;
	u8    _r_b;

	u8    affil_valid:1;
	u8    affil_supp:1;
	u8    _r_c:6;

	u32    _r_d;

	u8    stp_sas_addr[8];

	struct dev_to_host_fis fis;

	u32   _r_e;

	u8    affil_stp_ini_addr[8];

	__be32 crc;
} __attribute__ ((packed));

struct smp_resp {
	u8    frame_type;
	u8    function;
	u8    result;
	u8    reserved;
	union {
		struct report_general_resp  rg;
		struct discover_resp        disc;
		struct report_phy_sata_resp rps;
	};
} __attribute__ ((packed));

#elif defined(__BIG_ENDIAN_BITFIELD)
struct sas_identify_frame {
	/* Byte 0 */
	u8  _un0:1;
	u8  dev_type:3;
	u8  frame_type:4;

	/* Byte 1 */
	u8  _un1;

	/* Byte 2 */
	union {
		struct {
			u8  _un247:4;
			u8  ssp_iport:1;
			u8  stp_iport:1;
			u8  smp_iport:1;
			u8  _un20:1;
		};
		u8 initiator_bits;
	};

	/* Byte 3 */
	union {
		struct {
			u8 _un347:4;
			u8 ssp_tport:1;
			u8 stp_tport:1;
			u8 smp_tport:1;
			u8 _un30:1;
		};
		u8 target_bits;
	};

	/* Byte 4 - 11 */
	u8 _un4_11[8];

	/* Byte 12 - 19 */
	u8 sas_addr[SAS_ADDR_SIZE];

	/* Byte 20 */
	u8 phy_id;

	u8 _un21_27[7];

	__be32 crc;
} __attribute__ ((packed));

struct ssp_frame_hdr {
	u8     frame_type;
	u8     hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
	u8     _r_a;
	u8     hashed_src_addr[HASHED_SAS_ADDR_SIZE];
	__be16 _r_b;

	u8     _r_c:5;
	u8     retry_data_frames:1;
	u8     retransmit:1;
	u8     changing_data_ptr:1;

	u8     _r_d:6;
	u8     num_fill_bytes:2;

	u32    _r_e;
	__be16 tag;
	__be16 tptt;
	__be32 data_offs;
} __attribute__ ((packed));

struct ssp_response_iu {
	u8     _r_a[10];

	u8     _r_b:6;
	u8     datapres:2;

	u8     status;

	u32    _r_c;

	__be32 sense_data_len;
	__be32 response_data_len;

	u8     resp_data[0];
	u8     sense_data[0];
} __attribute__ ((packed));

/* ---------- SMP ---------- */

struct report_general_resp {
	__be16  change_count;
	__be16  route_indexes;
	u8      _r_a;
	u8      num_phys;

	u8      _r_b:6;
	u8      configuring:1;
	u8      conf_route_table:1;

	u8      _r_c;

	u8      enclosure_logical_id[8];

	u8      _r_d[12];
} __attribute__ ((packed));

struct discover_resp {
	u8    _r_a[5];

	u8    phy_id;
	__be16 _r_b;

	u8    _r_d:1;
	u8    attached_dev_type:3;
	u8    _r_c:4;

	u8    _r_e:4;
	u8    linkrate:4;

	u8    _r_f:4;
	u8    iproto:3;
	u8    attached_sata_host:1;

	u8    attached_sata_ps:1;
	u8    _r_g:3;
	u8    tproto:3;
	u8    attached_sata_dev:1;

	u8    sas_addr[8];
	u8    attached_sas_addr[8];
	u8    attached_phy_id;

	u8    _r_h[7];

	u8    pmin_linkrate:4;
	u8    hmin_linkrate:4;
	u8    pmax_linkrate:4;
	u8    hmax_linkrate:4;

	u8    change_count;

	u8    virtual:1;
	u8    _r_i:3;
	u8    pptv:4;

	u8    _r_j:4;
	u8    routing_attr:4;

	u8    conn_type;
	u8    conn_el_index;
	u8    conn_phy_link;

	u8    _r_k[8];
} __attribute__ ((packed));

struct report_phy_sata_resp {
	u8    _r_a[5];

	u8    phy_id;
	u8    _r_b;

	u8    _r_c:6;
	u8    affil_supp:1;
	u8    affil_valid:1;

	u32   _r_d;

	u8    stp_sas_addr[8];

	struct dev_to_host_fis fis;

	u32   _r_e;

	u8    affil_stp_ini_addr[8];

	__be32 crc;
} __attribute__ ((packed));

struct smp_resp {
	u8    frame_type;
	u8    function;
	u8    result;
	u8    reserved;
	union {
		struct report_general_resp  rg;
		struct discover_resp        disc;
		struct report_phy_sata_resp rps;
	};
} __attribute__ ((packed));

#else
#error "Bitfield order not defined!"
#endif

#endif /* _SAS_H_ */
Commit	Line	Data
2908d778 JB	1	/*
	2	* SAS structures and definitions header file
	3	*
	4	* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
	5	* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
	6	*
	7	* This file is licensed under GPLv2.
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of the
	12	* License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful, but
	15	* WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	22	* USA
	23	*
	24	*/
	25
	26	#ifndef _SAS_H_
	27	#define _SAS_H_
	28
	29	#include <linux/types.h>
	30	#include <asm/byteorder.h>
	31
	32	#define SAS_ADDR_SIZE 8
	33	#define HASHED_SAS_ADDR_SIZE 3
	34	#define SAS_ADDR(_sa) ((unsigned long long) be64_to_cpu((__be64 )(_sa)))
	35
	36	#define SMP_REQUEST 0x40
	37	#define SMP_RESPONSE 0x41
	38
	39	#define SSP_DATA 0x01
	40	#define SSP_XFER_RDY 0x05
	41	#define SSP_COMMAND 0x06
	42	#define SSP_RESPONSE 0x07
	43	#define SSP_TASK 0x16
	44
	45	#define SMP_REPORT_GENERAL 0x00
	46	#define SMP_REPORT_MANUF_INFO 0x01
	47	#define SMP_READ_GPIO_REG 0x02
	48	#define SMP_DISCOVER 0x10
	49	#define SMP_REPORT_PHY_ERR_LOG 0x11
	50	#define SMP_REPORT_PHY_SATA 0x12
	51	#define SMP_REPORT_ROUTE_INFO 0x13
	52	#define SMP_WRITE_GPIO_REG 0x82
	53	#define SMP_CONF_ROUTE_INFO 0x90
	54	#define SMP_PHY_CONTROL 0x91
	55	#define SMP_PHY_TEST_FUNCTION 0x92
	56
	57	#define SMP_RESP_FUNC_ACC 0x00
	58	#define SMP_RESP_FUNC_UNK 0x01
	59	#define SMP_RESP_FUNC_FAILED 0x02
	60	#define SMP_RESP_INV_FRM_LEN 0x03
	61	#define SMP_RESP_NO_PHY 0x10
	62	#define SMP_RESP_NO_INDEX 0x11
	63	#define SMP_RESP_PHY_NO_SATA 0x12
	64	#define SMP_RESP_PHY_UNK_OP 0x13
65	#define SMP_RESP_PHY_UNK_TESTF 0x14
66	#define SMP_RESP_PHY_TEST_INPROG 0x15
67	#define SMP_RESP_PHY_VACANT 0x16
68
69	/* SAM TMFs */
70	#define TMF_ABORT_TASK 0x01
71	#define TMF_ABORT_TASK_SET 0x02
72	#define TMF_CLEAR_TASK_SET 0x04
73	#define TMF_LU_RESET 0x08
74	#define TMF_CLEAR_ACA 0x40
75	#define TMF_QUERY_TASK 0x80
76
77	/* SAS TMF responses */
78	#define TMF_RESP_FUNC_COMPLETE 0x00
79	#define TMF_RESP_INVALID_FRAME 0x02
80	#define TMF_RESP_FUNC_ESUPP 0x04
81	#define TMF_RESP_FUNC_FAILED 0x05
82	#define TMF_RESP_FUNC_SUCC 0x08
83	#define TMF_RESP_NO_LUN 0x09
84	#define TMF_RESP_OVERLAPPED_TAG 0x0A
85
86	enum sas_oob_mode {
87	OOB_NOT_CONNECTED,
88	SATA_OOB_MODE,
89	SAS_OOB_MODE
90	};
91
92	/* See sas_discover.c if you plan on changing these.
93	*/
94	enum sas_dev_type {
95	NO_DEVICE = 0, /* protocol */
96	SAS_END_DEV = 1, /* protocol */
97	EDGE_DEV = 2, /* protocol */
98	FANOUT_DEV = 3, /* protocol */
99	SAS_HA = 4,
100	SATA_DEV = 5,
101	SATA_PM = 7,
102	SATA_PM_PORT= 8,
103	};
104
5929faf3 DW	105	enum sas_protocol {
	106	SAS_PROTOCOL_SATA = 0x01,
	107	SAS_PROTOCOL_SMP = 0x02,
	108	SAS_PROTOCOL_STP = 0x04,
	109	SAS_PROTOCOL_SSP = 0x08,
	110	SAS_PROTOCOL_ALL = 0x0E,
2908d778 JB	111	};
	112
	113	/* From the spec; local phys only */
	114	enum phy_func {
	115	PHY_FUNC_NOP,
	116	PHY_FUNC_LINK_RESET, /* Enables the phy */
	117	PHY_FUNC_HARD_RESET,
	118	PHY_FUNC_DISABLE,
	119	PHY_FUNC_CLEAR_ERROR_LOG = 5,
	120	PHY_FUNC_CLEAR_AFFIL,
	121	PHY_FUNC_TX_SATA_PS_SIGNAL,
	122	PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
a01e70e5	123	PHY_FUNC_SET_LINK_RATE,
2908d778 JB	124	};
	125
	126	/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.
	127	* Most of those are here for completeness.
	128	*/
	129	enum sas_prim {
	130	SAS_PRIM_AIP_NORMAL = 1,
	131	SAS_PRIM_AIP_R0 = 2,
	132	SAS_PRIM_AIP_R1 = 3,
	133	SAS_PRIM_AIP_R2 = 4,
	134	SAS_PRIM_AIP_WC = 5,
	135	SAS_PRIM_AIP_WD = 6,
	136	SAS_PRIM_AIP_WP = 7,
	137	SAS_PRIM_AIP_RWP = 8,
	138
	139	SAS_PRIM_BC_CH = 9,
	140	SAS_PRIM_BC_RCH0 = 10,
	141	SAS_PRIM_BC_RCH1 = 11,
	142	SAS_PRIM_BC_R0 = 12,
	143	SAS_PRIM_BC_R1 = 13,
	144	SAS_PRIM_BC_R2 = 14,
	145	SAS_PRIM_BC_R3 = 15,
	146	SAS_PRIM_BC_R4 = 16,
	147
	148	SAS_PRIM_NOTIFY_ENSP= 17,
	149	SAS_PRIM_NOTIFY_R0 = 18,
	150	SAS_PRIM_NOTIFY_R1 = 19,
	151	SAS_PRIM_NOTIFY_R2 = 20,
	152
	153	SAS_PRIM_CLOSE_CLAF = 21,
	154	SAS_PRIM_CLOSE_NORM = 22,
	155	SAS_PRIM_CLOSE_R0 = 23,
	156	SAS_PRIM_CLOSE_R1 = 24,
	157
	158	SAS_PRIM_OPEN_RTRY = 25,
	159	SAS_PRIM_OPEN_RJCT = 26,
	160	SAS_PRIM_OPEN_ACPT = 27,
	161
	162	SAS_PRIM_DONE = 28,
	163	SAS_PRIM_BREAK = 29,
	164
	165	SATA_PRIM_DMAT = 33,
	166	SATA_PRIM_PMNAK = 34,
	167	SATA_PRIM_PMACK = 35,
	168	SATA_PRIM_PMREQ_S = 36,
	169	SATA_PRIM_PMREQ_P = 37,
	170	SATA_SATA_R_ERR = 38,
	171	};
	172
	173	enum sas_open_rej_reason {
	174	/* Abandon open */
	175	SAS_OREJ_UNKNOWN = 0,
	176	SAS_OREJ_BAD_DEST = 1,
	177	SAS_OREJ_CONN_RATE = 2,
	178	SAS_OREJ_EPROTO = 3,
	179	SAS_OREJ_RESV_AB0 = 4,
	180	SAS_OREJ_RESV_AB1 = 5,
	181	SAS_OREJ_RESV_AB2 = 6,
	182	SAS_OREJ_RESV_AB3 = 7,
	183	SAS_OREJ_WRONG_DEST= 8,
	184	SAS_OREJ_STP_NORES = 9,
	185
	186	/* Retry open */
	187	SAS_OREJ_NO_DEST = 10,
188	SAS_OREJ_PATH_BLOCKED = 11,
189	SAS_OREJ_RSVD_CONT0 = 12,
190	SAS_OREJ_RSVD_CONT1 = 13,
191	SAS_OREJ_RSVD_INIT0 = 14,
192	SAS_OREJ_RSVD_INIT1 = 15,
193	SAS_OREJ_RSVD_STOP0 = 16,
194	SAS_OREJ_RSVD_STOP1 = 17,
195	SAS_OREJ_RSVD_RETRY = 18,
196	};
197
198	struct dev_to_host_fis {
199	u8 fis_type; /* 0x34 */
200	u8 flags;
201	u8 status;
202	u8 error;
203
204	u8 lbal;
205	union { u8 lbam; u8 byte_count_low; };
206	union { u8 lbah; u8 byte_count_high; };
207	u8 device;
208
209	u8 lbal_exp;
210	u8 lbam_exp;
211	u8 lbah_exp;
212	u8 _r_a;
213
214	union { u8 sector_count; u8 interrupt_reason; };
215	u8 sector_count_exp;
216	u8 _r_b;
217	u8 _r_c;
218
219	u32 _r_d;
220	} __attribute__ ((packed));
221
222	struct host_to_dev_fis {
223	u8 fis_type; /* 0x27 */
224	u8 flags;
225	u8 command;
226	u8 features;
227
228	u8 lbal;
229	union { u8 lbam; u8 byte_count_low; };
230	union { u8 lbah; u8 byte_count_high; };
231	u8 device;
232
233	u8 lbal_exp;
234	u8 lbam_exp;
235	u8 lbah_exp;
236	u8 features_exp;
237
238	union { u8 sector_count; u8 interrupt_reason; };
239	u8 sector_count_exp;
240	u8 _r_a;
241	u8 control;
242
243	u32 _r_b;
244	} __attribute__ ((packed));
245
246	/* Prefer to have code clarity over header file clarity.
247	*/
248	#ifdef __LITTLE_ENDIAN_BITFIELD
249	struct sas_identify_frame {
250	/* Byte 0 */
251	u8 frame_type:4;
252	u8 dev_type:3;
253	u8 _un0:1;
254
255	/* Byte 1 */
256	u8 _un1;
257
258	/* Byte 2 */
259	union {
260	struct {
261	u8 _un20:1;
262	u8 smp_iport:1;
263	u8 stp_iport:1;
264	u8 ssp_iport:1;
265	u8 _un247:4;
266	};
267	u8 initiator_bits;
268	};
269
270	/* Byte 3 */
271	union {
272	struct {
273	u8 _un30:1;
274	u8 smp_tport:1;
275	u8 stp_tport:1;
276	u8 ssp_tport:1;
277	u8 _un347:4;
278	};
279	u8 target_bits;
280	};
281
282	/* Byte 4 - 11 */
283	u8 _un4_11[8];
284
285	/* Byte 12 - 19 */
286	u8 sas_addr[SAS_ADDR_SIZE];
287
288	/* Byte 20 */
289	u8 phy_id;
290
291	u8 _un21_27[7];
292
293	__be32 crc;
294	} __attribute__ ((packed));
295
296	struct ssp_frame_hdr {
297	u8 frame_type;
298	u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
299	u8 _r_a;
300	u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
301	__be16 _r_b;
302
303	u8 changing_data_ptr:1;
304	u8 retransmit:1;
305	u8 retry_data_frames:1;
306	u8 _r_c:5;
307
308	u8 num_fill_bytes:2;
309	u8 _r_d:6;
310
311	u32 _r_e;
312	__be16 tag;
313	__be16 tptt;
314	__be32 data_offs;
315	} __attribute__ ((packed));
316
317	struct ssp_response_iu {
318	u8 _r_a[10];
319
320	u8 datapres:2;
321	u8 _r_b:6;
322
323	u8 status;
324
325	u32 _r_c;
326
327	__be32 sense_data_len;
328	__be32 response_data_len;
329
330	u8 resp_data[0];
331	u8 sense_data[0];
332	} __attribute__ ((packed));
333
334	/* ---------- SMP ---------- */
335
336	struct report_general_resp {
337	__be16 change_count;
338	__be16 route_indexes;
339	u8 _r_a;
340	u8 num_phys;
341
342	u8 conf_route_table:1;
343	u8 configuring:1;
344	u8 _r_b:6;
345
346	u8 _r_c;
347
348	u8 enclosure_logical_id[8];
349
350	u8 _r_d[12];
351	} __attribute__ ((packed));
352
353	struct discover_resp {
354	u8 _r_a[5];
355
356	u8 phy_id;
357	__be16 _r_b;
358
359	u8 _r_c:4;
360	u8 attached_dev_type:3;
361	u8 _r_d:1;
362
363	u8 linkrate:4;
364	u8 _r_e:4;
365
366	u8 attached_sata_host:1;
367	u8 iproto:3;
368	u8 _r_f:4;
369
370	u8 attached_sata_dev:1;
371	u8 tproto:3;
372	u8 _r_g:3;
373	u8 attached_sata_ps:1;
374
375	u8 sas_addr[8];
376	u8 attached_sas_addr[8];
377	u8 attached_phy_id;
378
379	u8 _r_h[7];
380
381	u8 hmin_linkrate:4;
382	u8 pmin_linkrate:4;
383	u8 hmax_linkrate:4;
384	u8 pmax_linkrate:4;
385
386	u8 change_count;
387
388	u8 pptv:4;
389	u8 _r_i:3;
390	u8 virtual:1;
391
392	u8 routing_attr:4;
393	u8 _r_j:4;
394
395	u8 conn_type;
396	u8 conn_el_index;
397	u8 conn_phy_link;
398
399	u8 _r_k[8];
400	} __attribute__ ((packed));
401
402	struct report_phy_sata_resp {
403	u8 _r_a[5];
404
405	u8 phy_id;
406	u8 _r_b;
407
408	u8 affil_valid:1;
409	u8 affil_supp:1;
410	u8 _r_c:6;
411
412	u32 _r_d;
413
414	u8 stp_sas_addr[8];
415
416	struct dev_to_host_fis fis;
417
418	u32 _r_e;
419
420	u8 affil_stp_ini_addr[8];
421
422	__be32 crc;
423	} __attribute__ ((packed));
424
425	struct smp_resp {
426	u8 frame_type;
427	u8 function;
428	u8 result;
429	u8 reserved;
430	union {
431	struct report_general_resp rg;
432	struct discover_resp disc;
433	struct report_phy_sata_resp rps;
434	};
435	} __attribute__ ((packed));
436
437	#elif defined(__BIG_ENDIAN_BITFIELD)
438	struct sas_identify_frame {
439	/* Byte 0 */
440	u8 _un0:1;
441	u8 dev_type:3;
442	u8 frame_type:4;
443
444	/* Byte 1 */
445	u8 _un1;
446
447	/* Byte 2 */
448	union {
449	struct {
450	u8 _un247:4;
451	u8 ssp_iport:1;
452	u8 stp_iport:1;
453	u8 smp_iport:1;
454	u8 _un20:1;
455	};
456	u8 initiator_bits;
457	};
458
459	/* Byte 3 */
460	union {
461	struct {
462	u8 _un347:4;
463	u8 ssp_tport:1;
464	u8 stp_tport:1;
465	u8 smp_tport:1;
466	u8 _un30:1;
467	};
468	u8 target_bits;
469	};
470
471	/* Byte 4 - 11 */
472	u8 _un4_11[8];
473
474	/* Byte 12 - 19 */
475	u8 sas_addr[SAS_ADDR_SIZE];
476
477	/* Byte 20 */
478	u8 phy_id;
479
480	u8 _un21_27[7];
481
482	__be32 crc;
483	} __attribute__ ((packed));
484
485	struct ssp_frame_hdr {
486	u8 frame_type;
487	u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
488	u8 _r_a;
489	u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
490	__be16 _r_b;
491
492	u8 _r_c:5;
493	u8 retry_data_frames:1;
494	u8 retransmit:1;
495	u8 changing_data_ptr:1;
496
497	u8 _r_d:6;
498	u8 num_fill_bytes:2;
499
500	u32 _r_e;
501	__be16 tag;
502	__be16 tptt;
503	__be32 data_offs;
504	} __attribute__ ((packed));
505
506	struct ssp_response_iu {
507	u8 _r_a[10];
508
509	u8 _r_b:6;
510	u8 datapres:2;
511
512	u8 status;
513
514	u32 _r_c;
515
516	__be32 sense_data_len;
517	__be32 response_data_len;
518
519	u8 resp_data[0];
520	u8 sense_data[0];
521	} __attribute__ ((packed));
522
523	/* ---------- SMP ---------- */
524
525	struct report_general_resp {
526	__be16 change_count;
527	__be16 route_indexes;
528	u8 _r_a;
529	u8 num_phys;
530
531	u8 _r_b:6;
532	u8 configuring:1;
533	u8 conf_route_table:1;
534
535	u8 _r_c;
536
537	u8 enclosure_logical_id[8];
538
539	u8 _r_d[12];
540	} __attribute__ ((packed));
541
542	struct discover_resp {
543	u8 _r_a[5];
544
545	u8 phy_id;
546	__be16 _r_b;
547
548	u8 _r_d:1;
549	u8 attached_dev_type:3;
550	u8 _r_c:4;
551
552	u8 _r_e:4;
553	u8 linkrate:4;
554
555	u8 _r_f:4;
556	u8 iproto:3;
557	u8 attached_sata_host:1;
558
559	u8 attached_sata_ps:1;
560	u8 _r_g:3;
561	u8 tproto:3;
562	u8 attached_sata_dev:1;
563
564	u8 sas_addr[8];
565	u8 attached_sas_addr[8];
566	u8 attached_phy_id;
567
568	u8 _r_h[7];
569
570	u8 pmin_linkrate:4;
571	u8 hmin_linkrate:4;
572	u8 pmax_linkrate:4;
573	u8 hmax_linkrate:4;
574
575	u8 change_count;
576
577	u8 virtual:1;
578	u8 _r_i:3;
579	u8 pptv:4;
580
581	u8 _r_j:4;
582	u8 routing_attr:4;
583
584	u8 conn_type;
585	u8 conn_el_index;
586	u8 conn_phy_link;
587
588	u8 _r_k[8];
589	} __attribute__ ((packed));
590
591	struct report_phy_sata_resp {
592	u8 _r_a[5];
593
594	u8 phy_id;
595	u8 _r_b;
596
597	u8 _r_c:6;
598	u8 affil_supp:1;
599	u8 affil_valid:1;
600
601	u32 _r_d;
602
603	u8 stp_sas_addr[8];
604
605	struct dev_to_host_fis fis;
606
607	u32 _r_e;
608
609	u8 affil_stp_ini_addr[8];
610
611	__be32 crc;
612	} __attribute__ ((packed));
613
614	struct smp_resp {
615	u8 frame_type;
616	u8 function;
617	u8 result;
618	u8 reserved;
619	union {
620	struct report_general_resp rg;
621	struct discover_resp disc;
622	struct report_phy_sata_resp rps;
623	};
624	} __attribute__ ((packed));
625
626	#else
627	#error "Bitfield order not defined!"
628	#endif
629
630	#endif /* _SAS_H_ */