linux/drivers/scsi/aic94xx/aic94xx_sas.h
<<
>>
Prefs
   1/*
   2 * Aic94xx SAS/SATA driver SAS definitions and hardware interface 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 file is part of the aic94xx driver.
  10 *
  11 * The aic94xx driver is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License as
  13 * published by the Free Software Foundation; version 2 of the
  14 * License.
  15 *
  16 * The aic94xx driver is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 * General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with the aic94xx driver; if not, write to the Free Software
  23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  24 *
  25 */
  26
  27#ifndef _AIC94XX_SAS_H_
  28#define _AIC94XX_SAS_H_
  29
  30#include <scsi/libsas.h>
  31
  32/* ---------- DDBs ---------- */
  33/* DDBs are device descriptor blocks which describe a device in the
  34 * domain that this sequencer can maintain low-level connections for
  35 * us.  They are be 64 bytes.
  36 */
  37#define ASD_MAX_DDBS    128
  38
  39struct asd_ddb_ssp_smp_target_port {
  40        u8     conn_type;         /* byte 0 */
  41#define DDB_TP_CONN_TYPE 0x81     /* Initiator port and addr frame type 0x01 */
  42
  43        u8     conn_rate;
  44        __be16 init_conn_tag;
  45        u8     dest_sas_addr[8];  /* bytes 4-11 */
  46
  47        __le16 send_queue_head;
  48        u8     sq_suspended;
  49        u8     ddb_type;          /* DDB_TYPE_TARGET */
  50#define DDB_TYPE_UNUSED    0xFF
  51#define DDB_TYPE_TARGET    0xFE
  52#define DDB_TYPE_INITIATOR 0xFD
  53#define DDB_TYPE_PM_PORT   0xFC
  54
  55        __le16 _r_a;
  56        __be16 awt_def;
  57
  58        u8     compat_features;   /* byte 20 */
  59        u8     pathway_blocked_count;
  60        __be16 arb_wait_time;
  61        __be32 more_compat_features; /* byte 24 */
  62
  63        u8     conn_mask;
  64        u8     flags;     /* concurrent conn:2,2 and open:0(1) */
  65#define CONCURRENT_CONN_SUPP 0x04
  66#define OPEN_REQUIRED        0x01
  67
  68        u16    _r_b;
  69        __le16 exec_queue_tail;
  70        __le16 send_queue_tail;
  71        __le16 sister_ddb;
  72
  73        __le16 _r_c;
  74
  75        u8     max_concurrent_conn;
  76        u8     num_concurrent_conn;
  77        u8     num_contexts;
  78
  79        u8     _r_d;
  80
  81        __le16 active_task_count;
  82
  83        u8     _r_e[9];
  84
  85        u8     itnl_reason;       /* I_T nexus loss reason */
  86
  87        __le16 _r_f;
  88
  89        __le16 itnl_timeout;
  90#define ITNL_TIMEOUT_CONST 0x7D0 /* 2 seconds */
  91
  92        __le32 itnl_timestamp;
  93} __attribute__ ((packed));
  94
  95struct asd_ddb_stp_sata_target_port {
  96        u8     conn_type;         /* byte 0 */
  97        u8     conn_rate;
  98        __be16 init_conn_tag;
  99        u8     dest_sas_addr[8];  /* bytes 4-11 */
 100
 101        __le16 send_queue_head;
 102        u8     sq_suspended;
 103        u8     ddb_type;          /* DDB_TYPE_TARGET */
 104
 105        __le16 _r_a;
 106
 107        __be16 awt_def;
 108        u8     compat_features;   /* byte 20 */
 109        u8     pathway_blocked_count;
 110        __be16 arb_wait_time;
 111        __be32 more_compat_features; /* byte 24 */
 112
 113        u8     conn_mask;
 114        u8     flags;     /* concurrent conn:2,2 and open:0(1) */
 115#define SATA_MULTIPORT     0x80
 116#define SUPPORTS_AFFIL     0x40
 117#define STP_AFFIL_POL      0x20
 118
 119        u8     _r_b;
 120        u8     flags2;            /* STP close policy:0 */
 121#define STP_CL_POL_NO_TX    0x00
 122#define STP_CL_POL_BTW_CMDS 0x01
 123
 124        __le16 exec_queue_tail;
 125        __le16 send_queue_tail;
 126        __le16 sister_ddb;
 127        __le16 ata_cmd_scbptr;
 128        __le32 sata_tag_alloc_mask;
 129        __le16 active_task_count;
 130        __le16 _r_c;
 131        __le32 sata_sactive;
 132        u8     num_sata_tags;
 133        u8     sata_status;
 134        u8     sata_ending_status;
 135        u8     itnl_reason;       /* I_T nexus loss reason */
 136        __le16 ncq_data_scb_ptr;
 137        __le16 itnl_timeout;
 138        __le32 itnl_timestamp;
 139} __attribute__ ((packed));
 140
 141/* This struct asd_ddb_init_port, describes the device descriptor block
 142 * of an initiator port (when the sequencer is operating in target mode).
 143 * Bytes [0,11] and [20,27] are from the OPEN address frame.
 144 * The sequencer allocates an initiator port DDB entry.
 145 */
 146struct asd_ddb_init_port {
 147        u8     conn_type;         /* byte 0 */
 148        u8     conn_rate;
 149        __be16 init_conn_tag;     /* BE */
 150        u8     dest_sas_addr[8];
 151        __le16 send_queue_head;   /* LE, byte 12 */
 152        u8     sq_suspended;
 153        u8     ddb_type;          /* DDB_TYPE_INITIATOR */
 154        __le16 _r_a;
 155        __be16 awt_def;           /* BE */
 156        u8     compat_features;
 157        u8     pathway_blocked_count;
 158        __be16 arb_wait_time;     /* BE */
 159        __be32 more_compat_features; /* BE */
 160        u8     conn_mask;
 161        u8     flags;             /* == 5 */
 162        u16    _r_b;
 163        __le16 exec_queue_tail;   /* execution queue tail */
 164        __le16 send_queue_tail;
 165        __le16 sister_ddb;
 166        __le16 init_resp_timeout; /* initiator response timeout */
 167        __le32 _r_c;
 168        __le16 active_tasks;      /* active task count */
 169        __le16 init_list;         /* initiator list link pointer */
 170        __le32 _r_d;
 171        u8     max_conn_to[3]; /* from Conn-Disc mode page, in us, LE */
 172        u8     itnl_reason;       /* I_T nexus loss reason */
 173        __le16 bus_inact_to; /* from Conn-Disc mode page, in 100 us, LE */
 174        __le16 itnl_to;           /* from the Protocol Specific Port Ctrl MP */
 175        __le32 itnl_timestamp;
 176} __attribute__ ((packed));
 177
 178/* This struct asd_ddb_sata_tag, describes a look-up table to be used
 179 * by the sequencers.  SATA II, IDENTIFY DEVICE data, word 76, bit 8:
 180 * NCQ support.  This table is used by the sequencers to find the
 181 * corresponding SCB, given a SATA II tag value.
 182 */
 183struct asd_ddb_sata_tag {
 184        __le16 scb_pointer[32];
 185} __attribute__ ((packed));
 186
 187/* This struct asd_ddb_sata_pm_table, describes a port number to
 188 * connection handle look-up table.  SATA targets attached to a port
 189 * multiplier require a 4-bit port number value.  There is one DDB
 190 * entry of this type for each SATA port multiplier (sister DDB).
 191 * Given a SATA PM port number, this table gives us the SATA PM Port
 192 * DDB of the SATA port multiplier port (i.e. the SATA target
 193 * discovered on the port).
 194 */
 195struct asd_ddb_sata_pm_table {
 196        __le16 ddb_pointer[16];
 197        __le16 _r_a[16];
 198} __attribute__ ((packed));
 199
 200/* This struct asd_ddb_sata_pm_port, describes the SATA port multiplier
 201 * port format DDB.
 202 */
 203struct asd_ddb_sata_pm_port {
 204        u8     _r_a[15];
 205        u8     ddb_type;
 206        u8     _r_b[13];
 207        u8     pm_port_flags;
 208#define PM_PORT_MASK  0xF0
 209#define PM_PORT_SET   0x02
 210        u8     _r_c[6];
 211        __le16 sister_ddb;
 212        __le16 ata_cmd_scbptr;
 213        __le32 sata_tag_alloc_mask;
 214        __le16 active_task_count;
 215        __le16 parent_ddb;
 216        __le32 sata_sactive;
 217        u8     num_sata_tags;
 218        u8     sata_status;
 219        u8     sata_ending_status;
 220        u8     _r_d[9];
 221} __attribute__ ((packed));
 222
 223/* This struct asd_ddb_seq_shared, describes a DDB shared by the
 224 * central and link sequencers.  port_map_by_links is indexed phy
 225 * number [0,7]; each byte is a bit mask of all the phys that are in
 226 * the same port as the indexed phy.
 227 */
 228struct asd_ddb_seq_shared {
 229        __le16 q_free_ddb_head;
 230        __le16 q_free_ddb_tail;
 231        __le16 q_free_ddb_cnt;
 232        __le16 q_used_ddb_head;
 233        __le16 q_used_ddb_tail;
 234        __le16 shared_mem_lock;
 235        __le16 smp_conn_tag;
 236        __le16 est_nexus_buf_cnt;
 237        __le16 est_nexus_buf_thresh;
 238        u32    _r_a;
 239        u8     settable_max_contexts;
 240        u8     _r_b[23];
 241        u8     conn_not_active;
 242        u8     phy_is_up;
 243        u8     _r_c[8];
 244        u8     port_map_by_links[8];
 245} __attribute__ ((packed));
 246
 247/* ---------- SG Element ---------- */
 248
 249/* This struct sg_el, describes the hardware scatter gather buffer
 250 * element.  All entries are little endian.  In an SCB, there are 2 of
 251 * this, plus one more, called a link element of this indicating a
 252 * sublist if needed.
 253 *
 254 * A link element has only the bus address set and the flags (DS) bit
 255 * valid.  The bus address points to the start of the sublist.
 256 *
 257 * If a sublist is needed, then that sublist should also include the 2
 258 * sg_el embedded in the SCB, in which case next_sg_offset is 32,
 259 * since sizeof(sg_el) = 16; EOS should be 1 and EOL 0 in this case.
 260 */
 261struct sg_el {
 262        __le64 bus_addr;
 263        __le32 size;
 264        __le16 _r;
 265        u8     next_sg_offs;
 266        u8     flags;
 267#define ASD_SG_EL_DS_MASK   0x30
 268#define ASD_SG_EL_DS_OCM    0x10
 269#define ASD_SG_EL_DS_HM     0x00
 270#define ASD_SG_EL_LIST_MASK 0xC0
 271#define ASD_SG_EL_LIST_EOL  0x40
 272#define ASD_SG_EL_LIST_EOS  0x80
 273} __attribute__ ((packed));
 274
 275/* ---------- SCBs ---------- */
 276
 277/* An SCB (sequencer control block) is comprised of a common header
 278 * and a task part, for a total of 128 bytes.  All fields are in LE
 279 * order, unless otherwise noted.
 280 */
 281
 282/* This struct scb_header, defines the SCB header format.
 283 */
 284struct scb_header {
 285        __le64 next_scb;
 286        __le16 index;             /* transaction context */
 287        u8     opcode;
 288} __attribute__ ((packed));
 289
 290/* SCB opcodes: Execution queue
 291 */
 292#define INITIATE_SSP_TASK       0x00
 293#define INITIATE_LONG_SSP_TASK  0x01
 294#define INITIATE_BIDIR_SSP_TASK 0x02
 295#define SCB_ABORT_TASK          0x03
 296#define INITIATE_SSP_TMF        0x04
 297#define SSP_TARG_GET_DATA       0x05
 298#define SSP_TARG_GET_DATA_GOOD  0x06
 299#define SSP_TARG_SEND_RESP      0x07
 300#define QUERY_SSP_TASK          0x08
 301#define INITIATE_ATA_TASK       0x09
 302#define INITIATE_ATAPI_TASK     0x0a
 303#define CONTROL_ATA_DEV         0x0b
 304#define INITIATE_SMP_TASK       0x0c
 305#define SMP_TARG_SEND_RESP      0x0f
 306
 307/* SCB opcodes: Send Queue
 308 */
 309#define SSP_TARG_SEND_DATA      0x40
 310#define SSP_TARG_SEND_DATA_GOOD 0x41
 311
 312/* SCB opcodes: Link Queue
 313 */
 314#define CONTROL_PHY             0x80
 315#define SEND_PRIMITIVE          0x81
 316#define INITIATE_LINK_ADM_TASK  0x82
 317
 318/* SCB opcodes: other
 319 */
 320#define EMPTY_SCB               0xc0
 321#define INITIATE_SEQ_ADM_TASK   0xc1
 322#define EST_ICL_TARG_WINDOW     0xc2
 323#define COPY_MEM                0xc3
 324#define CLEAR_NEXUS             0xc4
 325#define INITIATE_DDB_ADM_TASK   0xc6
 326#define ESTABLISH_NEXUS_ESCB    0xd0
 327
 328#define LUN_SIZE                8
 329
 330#define EFB_MASK                0x80
 331#define TASK_PRIO_MASK          0x78
 332#define TASK_ATTR_MASK          0x07
 333/* ---------- SCB tasks ---------- */
 334
 335/* This is both ssp_task and long_ssp_task
 336 */
 337struct initiate_ssp_task {
 338        u8     proto_conn_rate;   /* proto:6,4, conn_rate:3,0 */
 339        __le32 total_xfer_len;
 340        struct ssp_frame_hdr  ssp_frame;
 341        struct ssp_command_iu ssp_cmd;
 342        __le16 sister_scb;        /* 0xFFFF */
 343        __le16 conn_handle;       /* index to DDB for the intended target */
 344        u8     data_dir;          /* :1,0 */
 345#define DATA_DIR_NONE   0x00
 346#define DATA_DIR_IN     0x01
 347#define DATA_DIR_OUT    0x02
 348#define DATA_DIR_BYRECIPIENT 0x03
 349
 350        u8     _r_a;
 351        u8     retry_count;
 352        u8     _r_b[5];
 353        struct sg_el sg_element[3]; /* 2 real and 1 link */
 354} __attribute__ ((packed));
 355
 356/* This defines both ata_task and atapi_task.
 357 * ata: C bit of FIS should be 1,
 358 * atapi: C bit of FIS should be 1, and command register should be 0xA0,
 359 * to indicate a packet command.
 360 */
 361struct initiate_ata_task {
 362        u8     proto_conn_rate;
 363        __le32 total_xfer_len;
 364        struct host_to_dev_fis fis;
 365        __le32 data_offs;
 366        u8     atapi_packet[16];
 367        u8     _r_a[12];
 368        __le16 sister_scb;
 369        __le16 conn_handle;
 370        u8     ata_flags;         /* CSMI:6,6, DTM:4,4, QT:3,3, data dir:1,0 */
 371#define CSMI_TASK           0x40
 372#define DATA_XFER_MODE_DMA  0x10
 373#define ATA_Q_TYPE_MASK     0x08
 374#define ATA_Q_TYPE_UNTAGGED 0x00
 375#define ATA_Q_TYPE_NCQ      0x08
 376
 377        u8     _r_b;
 378        u8     retry_count;
 379        u8     _r_c;
 380        u8     flags;
 381#define STP_AFFIL_POLICY   0x20
 382#define SET_AFFIL_POLICY   0x10
 383#define RET_PARTIAL_SGLIST 0x02
 384
 385        u8     _r_d[3];
 386        struct sg_el sg_element[3];
 387} __attribute__ ((packed));
 388
 389struct initiate_smp_task {
 390        u8     proto_conn_rate;
 391        u8     _r_a[40];
 392        struct sg_el smp_req;
 393        __le16 sister_scb;
 394        __le16 conn_handle;
 395        u8     _r_c[8];
 396        struct sg_el smp_resp;
 397        u8     _r_d[32];
 398} __attribute__ ((packed));
 399
 400struct control_phy {
 401        u8     phy_id;
 402        u8     sub_func;
 403#define DISABLE_PHY            0x00
 404#define ENABLE_PHY             0x01
 405#define RELEASE_SPINUP_HOLD    0x02
 406#define ENABLE_PHY_NO_SAS_OOB  0x03
 407#define ENABLE_PHY_NO_SATA_OOB 0x04
 408#define PHY_NO_OP              0x05
 409#define EXECUTE_HARD_RESET     0x81
 410
 411        u8     func_mask;
 412        u8     speed_mask;
 413        u8     hot_plug_delay;
 414        u8     port_type;
 415        u8     flags;
 416#define DEV_PRES_TIMER_OVERRIDE_ENABLE 0x01
 417#define DISABLE_PHY_IF_OOB_FAILS       0x02
 418
 419        __le32 timeout_override;
 420        u8     link_reset_retries;
 421        u8     _r_a[47];
 422        __le16 conn_handle;
 423        u8     _r_b[56];
 424} __attribute__ ((packed));
 425
 426struct control_ata_dev {
 427        u8     proto_conn_rate;
 428        __le32 _r_a;
 429        struct host_to_dev_fis fis;
 430        u8     _r_b[32];
 431        __le16 sister_scb;
 432        __le16 conn_handle;
 433        u8     ata_flags;         /* 0 */
 434        u8     _r_c[55];
 435} __attribute__ ((packed));
 436
 437struct empty_scb {
 438        u8     num_valid;
 439        __le32 _r_a;
 440#define ASD_EDBS_PER_SCB 7
 441/* header+data+CRC+DMA suffix data */
 442#define ASD_EDB_SIZE (24+1024+4+16)
 443        struct sg_el eb[ASD_EDBS_PER_SCB];
 444#define ELEMENT_NOT_VALID  0xC0
 445} __attribute__ ((packed));
 446
 447struct initiate_link_adm {
 448        u8     phy_id;
 449        u8     sub_func;
 450#define GET_LINK_ERROR_COUNT      0x00
 451#define RESET_LINK_ERROR_COUNT    0x01
 452#define ENABLE_NOTIFY_SPINUP_INTS 0x02
 453
 454        u8     _r_a[57];
 455        __le16 conn_handle;
 456        u8     _r_b[56];
 457} __attribute__ ((packed));
 458
 459struct copy_memory {
 460        u8     _r_a;
 461        __le16 xfer_len;
 462        __le16 _r_b;
 463        __le64 src_busaddr;
 464        u8     src_ds;            /* See definition of sg_el */
 465        u8     _r_c[45];
 466        __le16 conn_handle;
 467        __le64 _r_d;
 468        __le64 dest_busaddr;
 469        u8     dest_ds;           /* See definition of sg_el */
 470        u8     _r_e[39];
 471} __attribute__ ((packed));
 472
 473struct abort_task {
 474        u8     proto_conn_rate;
 475        __le32 _r_a;
 476        struct ssp_frame_hdr ssp_frame;
 477        struct ssp_tmf_iu ssp_task;
 478        __le16 sister_scb;
 479        __le16 conn_handle;
 480        u8     flags;     /* ovrd_itnl_timer:3,3, suspend_data_trans:2,2 */
 481#define SUSPEND_DATA_TRANS 0x04
 482
 483        u8     _r_b;
 484        u8     retry_count;
 485        u8     _r_c[5];
 486        __le16 index;  /* Transaction context of task to be queried */
 487        __le16 itnl_to;
 488        u8     _r_d[44];
 489} __attribute__ ((packed));
 490
 491struct clear_nexus {
 492        u8     nexus;
 493#define NEXUS_ADAPTER  0x00
 494#define NEXUS_PORT     0x01
 495#define NEXUS_I_T      0x02
 496#define NEXUS_I_T_L    0x03
 497#define NEXUS_TAG      0x04
 498#define NEXUS_TRANS_CX 0x05
 499#define NEXUS_SATA_TAG 0x06
 500#define NEXUS_T_L      0x07
 501#define NEXUS_L        0x08
 502#define NEXUS_T_TAG    0x09
 503
 504        __le32 _r_a;
 505        u8     flags;
 506#define SUSPEND_TX     0x80
 507#define RESUME_TX      0x40
 508#define SEND_Q         0x04
 509#define EXEC_Q         0x02
 510#define NOTINQ         0x01
 511
 512        u8     _r_b[3];
 513        u8     conn_mask;
 514        u8     _r_c[19];
 515        struct ssp_tmf_iu ssp_task; /* LUN and TAG */
 516        __le16 _r_d;
 517        __le16 conn_handle;
 518        __le64 _r_e;
 519        __le16 index;  /* Transaction context of task to be cleared */
 520        __le16 context;           /* Clear nexus context */
 521        u8     _r_f[44];
 522} __attribute__ ((packed));
 523
 524struct initiate_ssp_tmf {
 525        u8     proto_conn_rate;
 526        __le32 _r_a;
 527        struct ssp_frame_hdr ssp_frame;
 528        struct ssp_tmf_iu ssp_task;
 529        __le16 sister_scb;
 530        __le16 conn_handle;
 531        u8     flags;     /* itnl override and suspend data tx */
 532#define OVERRIDE_ITNL_TIMER  8
 533
 534        u8     _r_b;
 535        u8     retry_count;
 536        u8     _r_c[5];
 537        __le16 index;  /* Transaction context of task to be queried */
 538        __le16 itnl_to;
 539        u8     _r_d[44];
 540} __attribute__ ((packed));
 541
 542/* Transmits an arbitrary primitive on the link.
 543 * Used for NOTIFY and BROADCAST.
 544 */
 545struct send_prim {
 546        u8     phy_id;
 547        u8     wait_transmit;     /* :0,0 */
 548        u8     xmit_flags;
 549#define XMTPSIZE_MASK      0xF0
 550#define XMTPSIZE_SINGLE    0x10
 551#define XMTPSIZE_REPEATED  0x20
 552#define XMTPSIZE_CONT      0x20
 553#define XMTPSIZE_TRIPLE    0x30
 554#define XMTPSIZE_REDUNDANT 0x60
 555#define XMTPSIZE_INF       0
 556
 557#define XMTCONTEN          0x04
 558#define XMTPFRM            0x02   /* Transmit at the next frame boundary */
 559#define XMTPIMM            0x01   /* Transmit immediately */
 560
 561        __le16 _r_a;
 562        u8     prim[4];           /* K, D0, D1, D2 */
 563        u8     _r_b[50];
 564        __le16 conn_handle;
 565        u8     _r_c[56];
 566} __attribute__ ((packed));
 567
 568/* This describes both SSP Target Get Data and SSP Target Get Data And
 569 * Send Good Response SCBs.  Used when the sequencer is operating in
 570 * target mode...
 571 */
 572struct ssp_targ_get_data {
 573        u8     proto_conn_rate;
 574        __le32 total_xfer_len;
 575        struct ssp_frame_hdr ssp_frame;
 576        struct xfer_rdy_iu  xfer_rdy;
 577        u8     lun[LUN_SIZE];
 578        __le64 _r_a;
 579        __le16 sister_scb;
 580        __le16 conn_handle;
 581        u8     data_dir;          /* 01b */
 582        u8     _r_b;
 583        u8     retry_count;
 584        u8     _r_c[5];
 585        struct sg_el sg_element[3];
 586} __attribute__ ((packed));
 587
 588/* ---------- The actual SCB struct ---------- */
 589
 590struct scb {
 591        struct scb_header header;
 592        union {
 593                struct initiate_ssp_task ssp_task;
 594                struct initiate_ata_task ata_task;
 595                struct initiate_smp_task smp_task;
 596                struct control_phy       control_phy;
 597                struct control_ata_dev   control_ata_dev;
 598                struct empty_scb         escb;
 599                struct initiate_link_adm link_adm;
 600                struct copy_memory       cp_mem;
 601                struct abort_task        abort_task;
 602                struct clear_nexus       clear_nexus;
 603                struct initiate_ssp_tmf  ssp_tmf;
 604        };
 605} __attribute__ ((packed));
 606
 607/* ---------- Done List ---------- */
 608/* The done list entry opcode field is defined below.
 609 * The mnemonic encoding and meaning is as follows:
 610 * TC - Task Complete, status was received and acknowledged
 611 * TF - Task Failed, indicates an error prior to receiving acknowledgment
 612 *   for the command:
 613 *   - no conn,
 614 *   - NACK or R_ERR received in response to this command,
 615 *   - credit blocked or not available, or in the case of SMP request,
 616 *   - no SMP response was received.
 617 *   In these four cases it is known that the target didn't receive the
 618 *   command.
 619 * TI - Task Interrupted, error after the command was acknowledged.  It is
 620 *   known that the command was received by the target.
 621 * TU - Task Unacked, command was transmitted but neither ACK (R_OK) nor NAK
 622 *   (R_ERR) was received due to loss of signal, broken connection, loss of
 623 *   dword sync or other reason.  The application client should send the
 624 *   appropriate task query.
 625 * TA - Task Aborted, see TF.
 626 * _RESP - The completion includes an empty buffer containing status.
 627 * TO - Timeout.
 628 */
 629#define TC_NO_ERROR             0x00
 630#define TC_UNDERRUN             0x01
 631#define TC_OVERRUN              0x02
 632#define TF_OPEN_TO              0x03
 633#define TF_OPEN_REJECT          0x04
 634#define TI_BREAK                0x05
 635#define TI_PROTO_ERR            0x06
 636#define TC_SSP_RESP             0x07
 637#define TI_PHY_DOWN             0x08
 638#define TF_PHY_DOWN             0x09
 639#define TC_LINK_ADM_RESP        0x0a
 640#define TC_CSMI                 0x0b
 641#define TC_ATA_RESP             0x0c
 642#define TU_PHY_DOWN             0x0d
 643#define TU_BREAK                0x0e
 644#define TI_SATA_TO              0x0f
 645#define TI_NAK                  0x10
 646#define TC_CONTROL_PHY          0x11
 647#define TF_BREAK                0x12
 648#define TC_RESUME               0x13
 649#define TI_ACK_NAK_TO           0x14
 650#define TF_SMPRSP_TO            0x15
 651#define TF_SMP_XMIT_RCV_ERR     0x16
 652#define TC_PARTIAL_SG_LIST      0x17
 653#define TU_ACK_NAK_TO           0x18
 654#define TU_SATA_TO              0x19
 655#define TF_NAK_RECV             0x1a
 656#define TA_I_T_NEXUS_LOSS       0x1b
 657#define TC_ATA_R_ERR_RECV       0x1c
 658#define TF_TMF_NO_CTX           0x1d
 659#define TA_ON_REQ               0x1e
 660#define TF_TMF_NO_TAG           0x1f
 661#define TF_TMF_TAG_FREE         0x20
 662#define TF_TMF_TASK_DONE        0x21
 663#define TF_TMF_NO_CONN_HANDLE   0x22
 664#define TC_TASK_CLEARED         0x23
 665#define TI_SYNCS_RECV           0x24
 666#define TU_SYNCS_RECV           0x25
 667#define TF_IRTT_TO              0x26
 668#define TF_NO_SMP_CONN          0x27
 669#define TF_IU_SHORT             0x28
 670#define TF_DATA_OFFS_ERR        0x29
 671#define TF_INV_CONN_HANDLE      0x2a
 672#define TF_REQUESTED_N_PENDING  0x2b
 673
 674/* 0xc1 - 0xc7: empty buffer received,
 675   0xd1 - 0xd7: establish nexus empty buffer received
 676*/
 677/* This is the ESCB mask */
 678#define ESCB_RECVD              0xC0
 679
 680
 681/* This struct done_list_struct defines the done list entry.
 682 * All fields are LE.
 683 */
 684struct done_list_struct {
 685        __le16 index;             /* aka transaction context */
 686        u8     opcode;
 687        u8     status_block[4];
 688        u8     toggle;            /* bit 0 */
 689#define DL_TOGGLE_MASK     0x01
 690} __attribute__ ((packed));
 691
 692/* ---------- PHYS ---------- */
 693
 694struct asd_phy {
 695        struct asd_sas_phy        sas_phy;
 696        struct asd_phy_desc   *phy_desc; /* hw profile */
 697
 698        struct sas_identify_frame *identify_frame;
 699        struct asd_dma_tok  *id_frm_tok;
 700        struct asd_port     *asd_port;
 701
 702        u8         frame_rcvd[ASD_EDB_SIZE];
 703};
 704
 705
 706#define ASD_SCB_SIZE sizeof(struct scb)
 707#define ASD_DDB_SIZE sizeof(struct asd_ddb_ssp_smp_target_port)
 708
 709/* Define this to 0 if you do not want NOTIFY (ENABLE SPINIP) sent.
 710 * Default: 0x10 (it's a mask)
 711 */
 712#define ASD_NOTIFY_ENABLE_SPINUP  0x10
 713
 714/* If enabled, set this to the interval between transmission
 715 * of NOTIFY (ENABLE SPINUP). In units of 200 us.
 716 */
 717#define ASD_NOTIFY_TIMEOUT        2500
 718
 719/* Initial delay after OOB, before we transmit NOTIFY (ENABLE SPINUP).
 720 * If 0, transmit immediately. In milliseconds.
 721 */
 722#define ASD_NOTIFY_DOWN_COUNT     0
 723
 724/* Device present timer timeout constant, 10 ms. */
 725#define ASD_DEV_PRESENT_TIMEOUT   0x2710
 726
 727#define ASD_SATA_INTERLOCK_TIMEOUT 0
 728
 729/* How long to wait before shutting down an STP connection, unless
 730 * an STP target sent frame(s). 50 usec.
 731 * IGNORED by the sequencer (i.e. value 0 always).
 732 */
 733#define ASD_STP_SHUTDOWN_TIMEOUT  0x0
 734
 735/* ATA soft reset timer timeout. 5 usec. */
 736#define ASD_SRST_ASSERT_TIMEOUT   0x05
 737
 738/* 31 sec */
 739#define ASD_RCV_FIS_TIMEOUT       0x01D905C0
 740
 741#define ASD_ONE_MILLISEC_TIMEOUT  0x03e8
 742
 743/* COMINIT timer */
 744#define ASD_TEN_MILLISEC_TIMEOUT  0x2710
 745#define ASD_COMINIT_TIMEOUT ASD_TEN_MILLISEC_TIMEOUT
 746
 747/* 1 sec */
 748#define ASD_SMP_RCV_TIMEOUT       0x000F4240
 749
 750#endif
 751