1/* 2 * linux/drivers/scsi/esas2r/esas2r.h 3 * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers 4 * 5 * Copyright (c) 2001-2013 ATTO Technology, Inc. 6 * (mailto:linuxdrivers@attotech.com) 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * as published by the Free Software Foundation; either version 2 11 * of the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * NO WARRANTY 19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 23 * solely responsible for determining the appropriateness of using and 24 * distributing the Program and assumes all risks associated with its 25 * exercise of rights under this Agreement, including but not limited to 26 * the risks and costs of program errors, damage to or loss of data, 27 * programs or equipment, and unavailability or interruption of operations. 28 * 29 * DISCLAIMER OF LIABILITY 30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 37 * 38 * You should have received a copy of the GNU General Public License 39 * along with this program; if not, write to the Free Software 40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 41 * USA. 42 */ 43 44#include <linux/kernel.h> 45#include <linux/delay.h> 46#include <linux/pci.h> 47#include <linux/proc_fs.h> 48#include <linux/workqueue.h> 49#include <linux/interrupt.h> 50#include <linux/module.h> 51#include <linux/vmalloc.h> 52#include <scsi/scsi.h> 53#include <scsi/scsi_host.h> 54#include <scsi/scsi_cmnd.h> 55#include <scsi/scsi_device.h> 56#include <scsi/scsi_eh.h> 57#include <scsi/scsi_tcq.h> 58 59#include "esas2r_log.h" 60#include "atioctl.h" 61#include "atvda.h" 62 63#ifndef ESAS2R_H 64#define ESAS2R_H 65 66/* Global Variables */ 67extern struct esas2r_adapter *esas2r_adapters[]; 68extern u8 *esas2r_buffered_ioctl; 69extern dma_addr_t esas2r_buffered_ioctl_addr; 70extern u32 esas2r_buffered_ioctl_size; 71extern struct pci_dev *esas2r_buffered_ioctl_pcid; 72#define SGL_PG_SZ_MIN 64 73#define SGL_PG_SZ_MAX 1024 74extern int sgl_page_size; 75#define NUM_SGL_MIN 8 76#define NUM_SGL_MAX 2048 77extern int num_sg_lists; 78#define NUM_REQ_MIN 4 79#define NUM_REQ_MAX 256 80extern int num_requests; 81#define NUM_AE_MIN 2 82#define NUM_AE_MAX 8 83extern int num_ae_requests; 84extern int cmd_per_lun; 85extern int can_queue; 86extern int esas2r_max_sectors; 87extern int sg_tablesize; 88extern int interrupt_mode; 89extern int num_io_requests; 90 91/* Macro defintions */ 92#define ESAS2R_MAX_ID 255 93#define MAX_ADAPTERS 32 94#define ESAS2R_DRVR_NAME "esas2r" 95#define ESAS2R_LONGNAME "ATTO ExpressSAS 6GB RAID Adapter" 96#define ESAS2R_MAX_DEVICES 32 97#define ATTONODE_NAME "ATTONode" 98#define ESAS2R_MAJOR_REV 1 99#define ESAS2R_MINOR_REV 00 100#define ESAS2R_VERSION_STR DEFINED_NUM_TO_STR(ESAS2R_MAJOR_REV) "." \ 101 DEFINED_NUM_TO_STR(ESAS2R_MINOR_REV) 102#define ESAS2R_COPYRIGHT_YEARS "2001-2013" 103#define ESAS2R_DEFAULT_SGL_PAGE_SIZE 384 104#define ESAS2R_DEFAULT_CMD_PER_LUN 64 105#define ESAS2R_DEFAULT_NUM_SG_LISTS 1024 106#define DEFINED_NUM_TO_STR(num) NUM_TO_STR(num) 107#define NUM_TO_STR(num) #num 108 109#define ESAS2R_SGL_ALIGN 16 110#define ESAS2R_LIST_ALIGN 16 111#define ESAS2R_LIST_EXTRA ESAS2R_NUM_EXTRA 112#define ESAS2R_DATA_BUF_LEN 256 113#define ESAS2R_DEFAULT_TMO 5000 114#define ESAS2R_DISC_BUF_LEN 512 115#define ESAS2R_FWCOREDUMP_SZ 0x80000 116#define ESAS2R_NUM_PHYS 8 117#define ESAS2R_TARG_ID_INV 0xFFFF 118#define ESAS2R_INT_STS_MASK MU_INTSTAT_MASK 119#define ESAS2R_INT_ENB_MASK MU_INTSTAT_MASK 120#define ESAS2R_INT_DIS_MASK 0 121#define ESAS2R_MAX_TARGETS 256 122#define ESAS2R_KOBJ_NAME_LEN 20 123 124/* u16 (WORD) component macros */ 125#define LOBYTE(w) ((u8)(u16)(w)) 126#define HIBYTE(w) ((u8)(((u16)(w)) >> 8)) 127#define MAKEWORD(lo, hi) ((u16)((u8)(lo) | ((u16)(u8)(hi) << 8))) 128 129/* u32 (DWORD) component macros */ 130#define LOWORD(d) ((u16)(u32)(d)) 131#define HIWORD(d) ((u16)(((u32)(d)) >> 16)) 132#define MAKEDWORD(lo, hi) ((u32)((u16)(lo) | ((u32)(u16)(hi) << 16))) 133 134/* macro to get the lowest nonzero bit of a value */ 135#define LOBIT(x) ((x) & (0 - (x))) 136 137/* These functions are provided to access the chip's control registers. 138 * The register is specified by its byte offset from the register base 139 * for the adapter. 140 */ 141#define esas2r_read_register_dword(a, reg) \ 142 readl((void __iomem *)a->regs + (reg) + MW_REG_OFFSET_HWREG) 143 144#define esas2r_write_register_dword(a, reg, data) \ 145 writel(data, (void __iomem *)(a->regs + (reg) + MW_REG_OFFSET_HWREG)) 146 147#define esas2r_flush_register_dword(a, r) esas2r_read_register_dword(a, r) 148 149/* This function is provided to access the chip's data window. The 150 * register is specified by its byte offset from the window base 151 * for the adapter. 152 */ 153#define esas2r_read_data_byte(a, reg) \ 154 readb((void __iomem *)a->data_window + (reg)) 155 156/* ATTO vendor and device Ids */ 157#define ATTO_VENDOR_ID 0x117C 158#define ATTO_DID_INTEL_IOP348 0x002C 159#define ATTO_DID_MV_88RC9580 0x0049 160#define ATTO_DID_MV_88RC9580TS 0x0066 161#define ATTO_DID_MV_88RC9580TSE 0x0067 162#define ATTO_DID_MV_88RC9580TL 0x0068 163 164/* ATTO subsystem device Ids */ 165#define ATTO_SSDID_TBT 0x4000 166#define ATTO_TSSC_3808 0x4066 167#define ATTO_TSSC_3808E 0x4067 168#define ATTO_TLSH_1068 0x4068 169#define ATTO_ESAS_R680 0x0049 170#define ATTO_ESAS_R608 0x004A 171#define ATTO_ESAS_R60F 0x004B 172#define ATTO_ESAS_R6F0 0x004C 173#define ATTO_ESAS_R644 0x004D 174#define ATTO_ESAS_R648 0x004E 175 176/* 177 * flash definitions & structures 178 * define the code types 179 */ 180#define FBT_CPYR 0xAA00 181#define FBT_SETUP 0xAA02 182#define FBT_FLASH_VER 0xAA04 183 184/* offsets to various locations in flash */ 185#define FLS_OFFSET_BOOT (u32)(0x00700000) 186#define FLS_OFFSET_NVR (u32)(0x007C0000) 187#define FLS_OFFSET_CPYR FLS_OFFSET_NVR 188#define FLS_LENGTH_BOOT (FLS_OFFSET_CPYR - FLS_OFFSET_BOOT) 189#define FLS_BLOCK_SIZE (u32)(0x00020000) 190#define FI_NVR_2KB 0x0800 191#define FI_NVR_8KB 0x2000 192#define FM_BUF_SZ 0x800 193 194/* 195 * marvell frey (88R9580) register definitions 196 * chip revision identifiers 197 */ 198#define MVR_FREY_B2 0xB2 199 200/* 201 * memory window definitions. window 0 is the data window with definitions 202 * of MW_DATA_XXX. window 1 is the register window with definitions of 203 * MW_REG_XXX. 204 */ 205#define MW_REG_WINDOW_SIZE (u32)(0x00040000) 206#define MW_REG_OFFSET_HWREG (u32)(0x00000000) 207#define MW_REG_OFFSET_PCI (u32)(0x00008000) 208#define MW_REG_PCI_HWREG_DELTA (MW_REG_OFFSET_PCI - MW_REG_OFFSET_HWREG) 209#define MW_DATA_WINDOW_SIZE (u32)(0x00020000) 210#define MW_DATA_ADDR_SER_FLASH (u32)(0xEC000000) 211#define MW_DATA_ADDR_SRAM (u32)(0xF4000000) 212#define MW_DATA_ADDR_PAR_FLASH (u32)(0xFC000000) 213 214/* 215 * the following registers are for the communication 216 * list interface (AKA message unit (MU)) 217 */ 218#define MU_IN_LIST_ADDR_LO (u32)(0x00004000) 219#define MU_IN_LIST_ADDR_HI (u32)(0x00004004) 220 221#define MU_IN_LIST_WRITE (u32)(0x00004018) 222 #define MU_ILW_TOGGLE (u32)(0x00004000) 223 224#define MU_IN_LIST_READ (u32)(0x0000401C) 225 #define MU_ILR_TOGGLE (u32)(0x00004000) 226 #define MU_ILIC_LIST (u32)(0x0000000F) 227 #define MU_ILIC_LIST_F0 (u32)(0x00000000) 228 #define MU_ILIC_DEST (u32)(0x00000F00) 229 #define MU_ILIC_DEST_DDR (u32)(0x00000200) 230#define MU_IN_LIST_IFC_CONFIG (u32)(0x00004028) 231 232#define MU_IN_LIST_CONFIG (u32)(0x0000402C) 233 #define MU_ILC_ENABLE (u32)(0x00000001) 234 #define MU_ILC_ENTRY_MASK (u32)(0x000000F0) 235 #define MU_ILC_ENTRY_4_DW (u32)(0x00000020) 236 #define MU_ILC_DYNAMIC_SRC (u32)(0x00008000) 237 #define MU_ILC_NUMBER_MASK (u32)(0x7FFF0000) 238 #define MU_ILC_NUMBER_SHIFT 16 239 240#define MU_OUT_LIST_ADDR_LO (u32)(0x00004050) 241#define MU_OUT_LIST_ADDR_HI (u32)(0x00004054) 242 243#define MU_OUT_LIST_COPY_PTR_LO (u32)(0x00004058) 244#define MU_OUT_LIST_COPY_PTR_HI (u32)(0x0000405C) 245 246#define MU_OUT_LIST_WRITE (u32)(0x00004068) 247 #define MU_OLW_TOGGLE (u32)(0x00004000) 248 249#define MU_OUT_LIST_COPY (u32)(0x0000406C) 250 #define MU_OLC_TOGGLE (u32)(0x00004000) 251 #define MU_OLC_WRT_PTR (u32)(0x00003FFF) 252 253#define MU_OUT_LIST_IFC_CONFIG (u32)(0x00004078) 254 #define MU_OLIC_LIST (u32)(0x0000000F) 255 #define MU_OLIC_LIST_F0 (u32)(0x00000000) 256 #define MU_OLIC_SOURCE (u32)(0x00000F00) 257 #define MU_OLIC_SOURCE_DDR (u32)(0x00000200) 258 259#define MU_OUT_LIST_CONFIG (u32)(0x0000407C) 260 #define MU_OLC_ENABLE (u32)(0x00000001) 261 #define MU_OLC_ENTRY_MASK (u32)(0x000000F0) 262 #define MU_OLC_ENTRY_4_DW (u32)(0x00000020) 263 #define MU_OLC_NUMBER_MASK (u32)(0x7FFF0000) 264 #define MU_OLC_NUMBER_SHIFT 16 265 266#define MU_OUT_LIST_INT_STAT (u32)(0x00004088) 267 #define MU_OLIS_INT (u32)(0x00000001) 268 269#define MU_OUT_LIST_INT_MASK (u32)(0x0000408C) 270 #define MU_OLIS_MASK (u32)(0x00000001) 271 272/* 273 * the maximum size of the communication lists is two greater than the 274 * maximum amount of VDA requests. the extra are to prevent queue overflow. 275 */ 276#define ESAS2R_MAX_NUM_REQS 256 277#define ESAS2R_NUM_EXTRA 2 278#define ESAS2R_MAX_COMM_LIST_SIZE (ESAS2R_MAX_NUM_REQS + ESAS2R_NUM_EXTRA) 279 280/* 281 * the following registers are for the CPU interface 282 */ 283#define MU_CTL_STATUS_IN (u32)(0x00010108) 284 #define MU_CTL_IN_FULL_RST (u32)(0x00000020) 285#define MU_CTL_STATUS_IN_B2 (u32)(0x00010130) 286 #define MU_CTL_IN_FULL_RST2 (u32)(0x80000000) 287#define MU_DOORBELL_IN (u32)(0x00010460) 288 #define DRBL_RESET_BUS (u32)(0x00000002) 289 #define DRBL_PAUSE_AE (u32)(0x00000004) 290 #define DRBL_RESUME_AE (u32)(0x00000008) 291 #define DRBL_MSG_IFC_DOWN (u32)(0x00000010) 292 #define DRBL_FLASH_REQ (u32)(0x00000020) 293 #define DRBL_FLASH_DONE (u32)(0x00000040) 294 #define DRBL_FORCE_INT (u32)(0x00000080) 295 #define DRBL_MSG_IFC_INIT (u32)(0x00000100) 296 #define DRBL_POWER_DOWN (u32)(0x00000200) 297 #define DRBL_DRV_VER_1 (u32)(0x00010000) 298 #define DRBL_DRV_VER DRBL_DRV_VER_1 299#define MU_DOORBELL_IN_ENB (u32)(0x00010464) 300#define MU_DOORBELL_OUT (u32)(0x00010480) 301 #define DRBL_PANIC_REASON_MASK (u32)(0x00F00000) 302 #define DRBL_UNUSED_HANDLER (u32)(0x00100000) 303 #define DRBL_UNDEF_INSTR (u32)(0x00200000) 304 #define DRBL_PREFETCH_ABORT (u32)(0x00300000) 305 #define DRBL_DATA_ABORT (u32)(0x00400000) 306 #define DRBL_JUMP_TO_ZERO (u32)(0x00500000) 307 #define DRBL_FW_RESET (u32)(0x00080000) 308 #define DRBL_FW_VER_MSK (u32)(0x00070000) 309 #define DRBL_FW_VER_0 (u32)(0x00000000) 310 #define DRBL_FW_VER_1 (u32)(0x00010000) 311 #define DRBL_FW_VER DRBL_FW_VER_1 312#define MU_DOORBELL_OUT_ENB (u32)(0x00010484) 313 #define DRBL_ENB_MASK (u32)(0x00F803FF) 314#define MU_INT_STATUS_OUT (u32)(0x00010200) 315 #define MU_INTSTAT_POST_OUT (u32)(0x00000010) 316 #define MU_INTSTAT_DRBL_IN (u32)(0x00000100) 317 #define MU_INTSTAT_DRBL (u32)(0x00001000) 318 #define MU_INTSTAT_MASK (u32)(0x00001010) 319#define MU_INT_MASK_OUT (u32)(0x0001020C) 320 321/* PCI express registers accessed via window 1 */ 322#define MVR_PCI_WIN1_REMAP (u32)(0x00008438) 323 #define MVRPW1R_ENABLE (u32)(0x00000001) 324 325 326/* structures */ 327 328/* inbound list dynamic source entry */ 329struct esas2r_inbound_list_source_entry { 330 u64 address; 331 u32 length; 332 #define HWILSE_INTERFACE_F0 0x00000000 333 u32 reserved; 334}; 335 336/* PCI data structure in expansion ROM images */ 337struct __packed esas2r_boot_header { 338 char signature[4]; 339 u16 vendor_id; 340 u16 device_id; 341 u16 VPD; 342 u16 struct_length; 343 u8 struct_revision; 344 u8 class_code[3]; 345 u16 image_length; 346 u16 code_revision; 347 u8 code_type; 348 #define CODE_TYPE_PC 0 349 #define CODE_TYPE_OPEN 1 350 #define CODE_TYPE_EFI 3 351 u8 indicator; 352 #define INDICATOR_LAST 0x80 353 u8 reserved[2]; 354}; 355 356struct __packed esas2r_boot_image { 357 u16 signature; 358 u8 reserved[22]; 359 u16 header_offset; 360 u16 pnp_offset; 361}; 362 363struct __packed esas2r_pc_image { 364 u16 signature; 365 u8 length; 366 u8 entry_point[3]; 367 u8 checksum; 368 u16 image_end; 369 u16 min_size; 370 u8 rom_flags; 371 u8 reserved[12]; 372 u16 header_offset; 373 u16 pnp_offset; 374 struct esas2r_boot_header boot_image; 375}; 376 377struct __packed esas2r_efi_image { 378 u16 signature; 379 u16 length; 380 u32 efi_signature; 381 #define EFI_ROM_SIG 0x00000EF1 382 u16 image_type; 383 #define EFI_IMAGE_APP 10 384 #define EFI_IMAGE_BSD 11 385 #define EFI_IMAGE_RTD 12 386 u16 machine_type; 387 #define EFI_MACHINE_IA32 0x014c 388 #define EFI_MACHINE_IA64 0x0200 389 #define EFI_MACHINE_X64 0x8664 390 #define EFI_MACHINE_EBC 0x0EBC 391 u16 compression; 392 #define EFI_UNCOMPRESSED 0x0000 393 #define EFI_COMPRESSED 0x0001 394 u8 reserved[8]; 395 u16 efi_offset; 396 u16 header_offset; 397 u16 reserved2; 398 struct esas2r_boot_header boot_image; 399}; 400 401struct esas2r_adapter; 402struct esas2r_sg_context; 403struct esas2r_request; 404 405typedef void (*RQCALLBK) (struct esas2r_adapter *a, 406 struct esas2r_request *rq); 407typedef bool (*RQBUILDSGL) (struct esas2r_adapter *a, 408 struct esas2r_sg_context *sgc); 409 410struct esas2r_component_header { 411 u8 img_type; 412 #define CH_IT_FW 0x00 413 #define CH_IT_NVR 0x01 414 #define CH_IT_BIOS 0x02 415 #define CH_IT_MAC 0x03 416 #define CH_IT_CFG 0x04 417 #define CH_IT_EFI 0x05 418 u8 status; 419 #define CH_STAT_PENDING 0xff 420 #define CH_STAT_FAILED 0x00 421 #define CH_STAT_SUCCESS 0x01 422 #define CH_STAT_RETRY 0x02 423 #define CH_STAT_INVALID 0x03 424 u8 pad[2]; 425 u32 version; 426 u32 length; 427 u32 image_offset; 428}; 429 430#define FI_REL_VER_SZ 16 431 432struct esas2r_flash_img_v0 { 433 u8 fi_version; 434 #define FI_VERSION_0 00 435 u8 status; 436 u8 adap_typ; 437 u8 action; 438 u32 length; 439 u16 checksum; 440 u16 driver_error; 441 u16 flags; 442 u16 num_comps; 443 #define FI_NUM_COMPS_V0 5 444 u8 rel_version[FI_REL_VER_SZ]; 445 struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V0]; 446 u8 scratch_buf[FM_BUF_SZ]; 447}; 448 449struct esas2r_flash_img { 450 u8 fi_version; 451 #define FI_VERSION_1 01 452 u8 status; 453 #define FI_STAT_SUCCESS 0x00 454 #define FI_STAT_FAILED 0x01 455 #define FI_STAT_REBOOT 0x02 456 #define FI_STAT_ADAPTYP 0x03 457 #define FI_STAT_INVALID 0x04 458 #define FI_STAT_CHKSUM 0x05 459 #define FI_STAT_LENGTH 0x06 460 #define FI_STAT_UNKNOWN 0x07 461 #define FI_STAT_IMG_VER 0x08 462 #define FI_STAT_BUSY 0x09 463 #define FI_STAT_DUAL 0x0A 464 #define FI_STAT_MISSING 0x0B 465 #define FI_STAT_UNSUPP 0x0C 466 #define FI_STAT_ERASE 0x0D 467 #define FI_STAT_FLASH 0x0E 468 #define FI_STAT_DEGRADED 0x0F 469 u8 adap_typ; 470 #define FI_AT_UNKNWN 0xFF 471 #define FI_AT_SUN_LAKE 0x0B 472 #define FI_AT_MV_9580 0x0F 473 u8 action; 474 #define FI_ACT_DOWN 0x00 475 #define FI_ACT_UP 0x01 476 #define FI_ACT_UPSZ 0x02 477 #define FI_ACT_MAX 0x02 478 #define FI_ACT_DOWN1 0x80 479 u32 length; 480 u16 checksum; 481 u16 driver_error; 482 u16 flags; 483 #define FI_FLG_NVR_DEF 0x0001 484 u16 num_comps; 485 #define FI_NUM_COMPS_V1 6 486 u8 rel_version[FI_REL_VER_SZ]; 487 struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V1]; 488 u8 scratch_buf[FM_BUF_SZ]; 489}; 490 491/* definitions for flash script (FS) commands */ 492struct esas2r_ioctlfs_command { 493 u8 command; 494 #define ESAS2R_FS_CMD_ERASE 0 495 #define ESAS2R_FS_CMD_READ 1 496 #define ESAS2R_FS_CMD_BEGINW 2 497 #define ESAS2R_FS_CMD_WRITE 3 498 #define ESAS2R_FS_CMD_COMMIT 4 499 #define ESAS2R_FS_CMD_CANCEL 5 500 u8 checksum; 501 u8 reserved[2]; 502 u32 flash_addr; 503 u32 length; 504 u32 image_offset; 505}; 506 507struct esas2r_ioctl_fs { 508 u8 version; 509 #define ESAS2R_FS_VER 0 510 u8 status; 511 u8 driver_error; 512 u8 adap_type; 513 #define ESAS2R_FS_AT_ESASRAID2 3 514 #define ESAS2R_FS_AT_TSSASRAID2 4 515 #define ESAS2R_FS_AT_TSSASRAID2E 5 516 #define ESAS2R_FS_AT_TLSASHBA 6 517 u8 driver_ver; 518 u8 reserved[11]; 519 struct esas2r_ioctlfs_command command; 520 u8 data[1]; 521}; 522 523struct esas2r_sas_nvram { 524 u8 signature[4]; 525 u8 version; 526 #define SASNVR_VERSION_0 0x00 527 #define SASNVR_VERSION SASNVR_VERSION_0 528 u8 checksum; 529 #define SASNVR_CKSUM_SEED 0x5A 530 u8 max_lun_for_target; 531 u8 pci_latency; 532 #define SASNVR_PCILAT_DIS 0x00 533 #define SASNVR_PCILAT_MIN 0x10 534 #define SASNVR_PCILAT_MAX 0xF8 535 u8 options1; 536 #define SASNVR1_BOOT_DRVR 0x01 537 #define SASNVR1_BOOT_SCAN 0x02 538 #define SASNVR1_DIS_PCI_MWI 0x04 539 #define SASNVR1_FORCE_ORD_Q 0x08 540 #define SASNVR1_CACHELINE_0 0x10 541 #define SASNVR1_DIS_DEVSORT 0x20 542 #define SASNVR1_PWR_MGT_EN 0x40 543 #define SASNVR1_WIDEPORT 0x80 544 u8 options2; 545 #define SASNVR2_SINGLE_BUS 0x01 546 #define SASNVR2_SLOT_BIND 0x02 547 #define SASNVR2_EXP_PROG 0x04 548 #define SASNVR2_CMDTHR_LUN 0x08 549 #define SASNVR2_HEARTBEAT 0x10 550 #define SASNVR2_INT_CONNECT 0x20 551 #define SASNVR2_SW_MUX_CTRL 0x40 552 #define SASNVR2_DISABLE_NCQ 0x80 553 u8 int_coalescing; 554 #define SASNVR_COAL_DIS 0x00 555 #define SASNVR_COAL_LOW 0x01 556 #define SASNVR_COAL_MED 0x02 557 #define SASNVR_COAL_HI 0x03 558 u8 cmd_throttle; 559 #define SASNVR_CMDTHR_NONE 0x00 560 u8 dev_wait_time; 561 u8 dev_wait_count; 562 u8 spin_up_delay; 563 #define SASNVR_SPINUP_MAX 0x14 564 u8 ssp_align_rate; 565 u8 sas_addr[8]; 566 u8 phy_speed[16]; 567 #define SASNVR_SPEED_AUTO 0x00 568 #define SASNVR_SPEED_1_5GB 0x01 569 #define SASNVR_SPEED_3GB 0x02 570 #define SASNVR_SPEED_6GB 0x03 571 #define SASNVR_SPEED_12GB 0x04 572 u8 phy_mux[16]; 573 #define SASNVR_MUX_DISABLED 0x00 574 #define SASNVR_MUX_1_5GB 0x01 575 #define SASNVR_MUX_3GB 0x02 576 #define SASNVR_MUX_6GB 0x03 577 u8 phy_flags[16]; 578 #define SASNVR_PHF_DISABLED 0x01 579 #define SASNVR_PHF_RD_ONLY 0x02 580 u8 sort_type; 581 #define SASNVR_SORT_SAS_ADDR 0x00 582 #define SASNVR_SORT_H308_CONN 0x01 583 #define SASNVR_SORT_PHY_ID 0x02 584 #define SASNVR_SORT_SLOT_ID 0x03 585 u8 dpm_reqcmd_lmt; 586 u8 dpm_stndby_time; 587 u8 dpm_active_time; 588 u8 phy_target_id[16]; 589 #define SASNVR_PTI_DISABLED 0xFF 590 u8 virt_ses_mode; 591 #define SASNVR_VSMH_DISABLED 0x00 592 u8 read_write_mode; 593 #define SASNVR_RWM_DEFAULT 0x00 594 u8 link_down_to; 595 u8 reserved[0xA1]; 596}; 597 598typedef u32 (*PGETPHYSADDR) (struct esas2r_sg_context *sgc, u64 *addr); 599 600struct esas2r_sg_context { 601 struct esas2r_adapter *adapter; 602 struct esas2r_request *first_req; 603 u32 length; 604 u8 *cur_offset; 605 PGETPHYSADDR get_phys_addr; 606 union { 607 struct { 608 struct atto_vda_sge *curr; 609 struct atto_vda_sge *last; 610 struct atto_vda_sge *limit; 611 struct atto_vda_sge *chain; 612 } a64; 613 struct { 614 struct atto_physical_region_description *curr; 615 struct atto_physical_region_description *chain; 616 u32 sgl_max_cnt; 617 u32 sge_cnt; 618 } prd; 619 } sge; 620 struct scatterlist *cur_sgel; 621 u8 *exp_offset; 622 int num_sgel; 623 int sgel_count; 624}; 625 626struct esas2r_target { 627 u8 flags; 628 #define TF_PASS_THRU 0x01 629 #define TF_USED 0x02 630 u8 new_target_state; 631 u8 target_state; 632 u8 buffered_target_state; 633#define TS_NOT_PRESENT 0x00 634#define TS_PRESENT 0x05 635#define TS_LUN_CHANGE 0x06 636#define TS_INVALID 0xFF 637 u32 block_size; 638 u32 inter_block; 639 u32 inter_byte; 640 u16 virt_targ_id; 641 u16 phys_targ_id; 642 u8 identifier_len; 643 u64 sas_addr; 644 u8 identifier[60]; 645 struct atto_vda_ae_lu lu_event; 646}; 647 648struct esas2r_request { 649 struct list_head comp_list; 650 struct list_head req_list; 651 union atto_vda_req *vrq; 652 struct esas2r_mem_desc *vrq_md; 653 union { 654 void *data_buf; 655 union atto_vda_rsp_data *vda_rsp_data; 656 }; 657 u8 *sense_buf; 658 struct list_head sg_table_head; 659 struct esas2r_mem_desc *sg_table; 660 u32 timeout; 661 #define RQ_TIMEOUT_S1 0xFFFFFFFF 662 #define RQ_TIMEOUT_S2 0xFFFFFFFE 663 #define RQ_MAX_TIMEOUT 0xFFFFFFFD 664 u16 target_id; 665 u8 req_type; 666 #define RT_INI_REQ 0x01 667 #define RT_DISC_REQ 0x02 668 u8 sense_len; 669 union atto_vda_func_rsp func_rsp; 670 RQCALLBK comp_cb; 671 RQCALLBK interrupt_cb; 672 void *interrupt_cx; 673 u8 flags; 674 #define RF_1ST_IBLK_BASE 0x04 675 #define RF_FAILURE_OK 0x08 676 u8 req_stat; 677 u16 vda_req_sz; 678 #define RQ_SIZE_DEFAULT 0 679 u64 lba; 680 RQCALLBK aux_req_cb; 681 void *aux_req_cx; 682 u32 blk_len; 683 u32 max_blk_len; 684 union { 685 struct scsi_cmnd *cmd; 686 u8 *task_management_status_ptr; 687 }; 688}; 689 690struct esas2r_flash_context { 691 struct esas2r_flash_img *fi; 692 RQCALLBK interrupt_cb; 693 u8 *sgc_offset; 694 u8 *scratch; 695 u32 fi_hdr_len; 696 u8 task; 697 #define FMTSK_ERASE_BOOT 0 698 #define FMTSK_WRTBIOS 1 699 #define FMTSK_READBIOS 2 700 #define FMTSK_WRTMAC 3 701 #define FMTSK_READMAC 4 702 #define FMTSK_WRTEFI 5 703 #define FMTSK_READEFI 6 704 #define FMTSK_WRTCFG 7 705 #define FMTSK_READCFG 8 706 u8 func; 707 u16 num_comps; 708 u32 cmp_len; 709 u32 flsh_addr; 710 u32 curr_len; 711 u8 comp_typ; 712 struct esas2r_sg_context sgc; 713}; 714 715struct esas2r_disc_context { 716 u8 disc_evt; 717 #define DCDE_DEV_CHANGE 0x01 718 #define DCDE_DEV_SCAN 0x02 719 u8 state; 720 #define DCS_DEV_RMV 0x00 721 #define DCS_DEV_ADD 0x01 722 #define DCS_BLOCK_DEV_SCAN 0x02 723 #define DCS_RAID_GRP_INFO 0x03 724 #define DCS_PART_INFO 0x04 725 #define DCS_PT_DEV_INFO 0x05 726 #define DCS_PT_DEV_ADDR 0x06 727 #define DCS_DISC_DONE 0xFF 728 u16 flags; 729 #define DCF_DEV_CHANGE 0x0001 730 #define DCF_DEV_SCAN 0x0002 731 #define DCF_POLLED 0x8000 732 u32 interleave; 733 u32 block_size; 734 u16 dev_ix; 735 u8 part_num; 736 u8 raid_grp_ix; 737 char raid_grp_name[16]; 738 struct esas2r_target *curr_targ; 739 u16 curr_virt_id; 740 u16 curr_phys_id; 741 u8 scan_gen; 742 u8 dev_addr_type; 743 u64 sas_addr; 744}; 745 746struct esas2r_mem_desc { 747 struct list_head next_desc; 748 void *virt_addr; 749 u64 phys_addr; 750 void *pad; 751 void *esas2r_data; 752 u32 esas2r_param; 753 u32 size; 754}; 755 756enum fw_event_type { 757 fw_event_null, 758 fw_event_lun_change, 759 fw_event_present, 760 fw_event_not_present, 761 fw_event_vda_ae 762}; 763 764struct esas2r_vda_ae { 765 u32 signature; 766#define ESAS2R_VDA_EVENT_SIG 0x4154544F 767 u8 bus_number; 768 u8 devfn; 769 u8 pad[2]; 770 union atto_vda_ae vda_ae; 771}; 772 773struct esas2r_fw_event_work { 774 struct list_head list; 775 struct delayed_work work; 776 struct esas2r_adapter *a; 777 enum fw_event_type type; 778 u8 data[sizeof(struct esas2r_vda_ae)]; 779}; 780 781enum state { 782 FW_INVALID_ST, 783 FW_STATUS_ST, 784 FW_COMMAND_ST 785}; 786 787struct esas2r_firmware { 788 enum state state; 789 struct esas2r_flash_img header; 790 u8 *data; 791 u64 phys; 792 int orig_len; 793 void *header_buff; 794 u64 header_buff_phys; 795}; 796 797struct esas2r_adapter { 798 struct esas2r_target targetdb[ESAS2R_MAX_TARGETS]; 799 struct esas2r_target *targetdb_end; 800 unsigned char *regs; 801 unsigned char *data_window; 802 long flags; 803 #define AF_PORT_CHANGE 0 804 #define AF_CHPRST_NEEDED 1 805 #define AF_CHPRST_PENDING 2 806 #define AF_CHPRST_DETECTED 3 807 #define AF_BUSRST_NEEDED 4 808 #define AF_BUSRST_PENDING 5 809 #define AF_BUSRST_DETECTED 6 810 #define AF_DISABLED 7 811 #define AF_FLASH_LOCK 8 812 #define AF_OS_RESET 9 813 #define AF_FLASHING 10 814 #define AF_POWER_MGT 11 815 #define AF_NVR_VALID 12 816 #define AF_DEGRADED_MODE 13 817 #define AF_DISC_PENDING 14 818 #define AF_TASKLET_SCHEDULED 15 819 #define AF_HEARTBEAT 16 820 #define AF_HEARTBEAT_ENB 17 821 #define AF_NOT_PRESENT 18 822 #define AF_CHPRST_STARTED 19 823 #define AF_FIRST_INIT 20 824 #define AF_POWER_DOWN 21 825 #define AF_DISC_IN_PROG 22 826 #define AF_COMM_LIST_TOGGLE 23 827 #define AF_LEGACY_SGE_MODE 24 828 #define AF_DISC_POLLED 25 829 long flags2; 830 #define AF2_SERIAL_FLASH 0 831 #define AF2_DEV_SCAN 1 832 #define AF2_DEV_CNT_OK 2 833 #define AF2_COREDUMP_AVAIL 3 834 #define AF2_COREDUMP_SAVED 4 835 #define AF2_VDA_POWER_DOWN 5 836 #define AF2_THUNDERLINK 6 837 #define AF2_THUNDERBOLT 7 838 #define AF2_INIT_DONE 8 839 #define AF2_INT_PENDING 9 840 #define AF2_TIMER_TICK 10 841 #define AF2_IRQ_CLAIMED 11 842 #define AF2_MSI_ENABLED 12 843 atomic_t disable_cnt; 844 atomic_t dis_ints_cnt; 845 u32 int_stat; 846 u32 int_mask; 847 u32 volatile *outbound_copy; 848 struct list_head avail_request; 849 spinlock_t request_lock; 850 spinlock_t sg_list_lock; 851 spinlock_t queue_lock; 852 spinlock_t mem_lock; 853 struct list_head free_sg_list_head; 854 struct esas2r_mem_desc *sg_list_mds; 855 struct list_head active_list; 856 struct list_head defer_list; 857 struct esas2r_request **req_table; 858 union { 859 u16 prev_dev_cnt; 860 u32 heartbeat_time; 861 #define ESAS2R_HEARTBEAT_TIME (3000) 862 }; 863 u32 chip_uptime; 864 #define ESAS2R_CHP_UPTIME_MAX (60000) 865 #define ESAS2R_CHP_UPTIME_CNT (20000) 866 u64 uncached_phys; 867 u8 *uncached; 868 struct esas2r_sas_nvram *nvram; 869 struct esas2r_request general_req; 870 u8 init_msg; 871 #define ESAS2R_INIT_MSG_START 1 872 #define ESAS2R_INIT_MSG_INIT 2 873 #define ESAS2R_INIT_MSG_GET_INIT 3 874 #define ESAS2R_INIT_MSG_REINIT 4 875 u16 cmd_ref_no; 876 u32 fw_version; 877 u32 fw_build; 878 u32 chip_init_time; 879 #define ESAS2R_CHPRST_TIME (180000) 880 #define ESAS2R_CHPRST_WAIT_TIME (2000) 881 u32 last_tick_time; 882 u32 window_base; 883 RQBUILDSGL build_sgl; 884 struct esas2r_request *first_ae_req; 885 u32 list_size; 886 u32 last_write; 887 u32 last_read; 888 u16 max_vdareq_size; 889 u16 disc_wait_cnt; 890 struct esas2r_mem_desc inbound_list_md; 891 struct esas2r_mem_desc outbound_list_md; 892 struct esas2r_disc_context disc_ctx; 893 u8 *disc_buffer; 894 u32 disc_start_time; 895 u32 disc_wait_time; 896 u32 flash_ver; 897 char flash_rev[16]; 898 char fw_rev[16]; 899 char image_type[16]; 900 struct esas2r_flash_context flash_context; 901 u32 num_targets_backend; 902 u32 ioctl_tunnel; 903 struct tasklet_struct tasklet; 904 struct pci_dev *pcid; 905 struct Scsi_Host *host; 906 unsigned int index; 907 char name[32]; 908 struct timer_list timer; 909 struct esas2r_firmware firmware; 910 wait_queue_head_t nvram_waiter; 911 int nvram_command_done; 912 wait_queue_head_t fm_api_waiter; 913 int fm_api_command_done; 914 wait_queue_head_t vda_waiter; 915 int vda_command_done; 916 u8 *vda_buffer; 917 u64 ppvda_buffer; 918#define VDA_BUFFER_HEADER_SZ (offsetof(struct atto_ioctl_vda, data)) 919#define VDA_MAX_BUFFER_SIZE (0x40000 + VDA_BUFFER_HEADER_SZ) 920 wait_queue_head_t fs_api_waiter; 921 int fs_api_command_done; 922 u64 ppfs_api_buffer; 923 u8 *fs_api_buffer; 924 u32 fs_api_buffer_size; 925 wait_queue_head_t buffered_ioctl_waiter; 926 int buffered_ioctl_done; 927 int uncached_size; 928 struct workqueue_struct *fw_event_q; 929 struct list_head fw_event_list; 930 spinlock_t fw_event_lock; 931 u8 fw_events_off; /* if '1', then ignore events */ 932 char fw_event_q_name[ESAS2R_KOBJ_NAME_LEN]; 933 /* 934 * intr_mode stores the interrupt mode currently being used by this 935 * adapter. it is based on the interrupt_mode module parameter, but 936 * can be changed based on the ability (or not) to utilize the 937 * mode requested by the parameter. 938 */ 939 int intr_mode; 940#define INTR_MODE_LEGACY 0 941#define INTR_MODE_MSI 1 942#define INTR_MODE_MSIX 2 943 struct esas2r_sg_context fm_api_sgc; 944 u8 *save_offset; 945 struct list_head vrq_mds_head; 946 struct esas2r_mem_desc *vrq_mds; 947 int num_vrqs; 948 struct mutex fm_api_mutex; 949 struct mutex fs_api_mutex; 950 struct semaphore nvram_semaphore; 951 struct atto_ioctl *local_atto_ioctl; 952 u8 fw_coredump_buff[ESAS2R_FWCOREDUMP_SZ]; 953 unsigned int sysfs_fw_created:1; 954 unsigned int sysfs_fs_created:1; 955 unsigned int sysfs_vda_created:1; 956 unsigned int sysfs_hw_created:1; 957 unsigned int sysfs_live_nvram_created:1; 958 unsigned int sysfs_default_nvram_created:1; 959}; 960 961/* 962 * Function Declarations 963 * SCSI functions 964 */ 965const char *esas2r_info(struct Scsi_Host *); 966int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq, 967 struct esas2r_sas_nvram *data); 968int esas2r_ioctl_handler(void *hostdata, unsigned int cmd, void __user *arg); 969int esas2r_ioctl(struct scsi_device *dev, unsigned int cmd, void __user *arg); 970u8 handle_hba_ioctl(struct esas2r_adapter *a, 971 struct atto_ioctl *ioctl_hba); 972int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd); 973int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh); 974long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); 975 976/* SCSI error handler (eh) functions */ 977int esas2r_eh_abort(struct scsi_cmnd *cmd); 978int esas2r_device_reset(struct scsi_cmnd *cmd); 979int esas2r_host_reset(struct scsi_cmnd *cmd); 980int esas2r_bus_reset(struct scsi_cmnd *cmd); 981int esas2r_target_reset(struct scsi_cmnd *cmd); 982 983/* Internal functions */ 984int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid, 985 int index); 986int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count); 987int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off, 988 int count); 989int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count); 990int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off, 991 int count); 992int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count); 993int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off, 994 int count); 995void esas2r_adapter_tasklet(unsigned long context); 996irqreturn_t esas2r_interrupt(int irq, void *dev_id); 997irqreturn_t esas2r_msi_interrupt(int irq, void *dev_id); 998void esas2r_kickoff_timer(struct esas2r_adapter *a); 999 1000extern const struct dev_pm_ops esas2r_pm_ops; 1001 1002void esas2r_fw_event_off(struct esas2r_adapter *a); 1003void esas2r_fw_event_on(struct esas2r_adapter *a); 1004bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq, 1005 struct esas2r_sas_nvram *nvram); 1006void esas2r_nvram_get_defaults(struct esas2r_adapter *a, 1007 struct esas2r_sas_nvram *nvram); 1008void esas2r_complete_request_cb(struct esas2r_adapter *a, 1009 struct esas2r_request *rq); 1010void esas2r_reset_detected(struct esas2r_adapter *a); 1011void esas2r_target_state_changed(struct esas2r_adapter *ha, u16 targ_id, 1012 u8 state); 1013int esas2r_req_status_to_error(u8 req_stat); 1014void esas2r_kill_adapter(int i); 1015void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq); 1016struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a); 1017u32 esas2r_get_uncached_size(struct esas2r_adapter *a); 1018bool esas2r_init_adapter_struct(struct esas2r_adapter *a, 1019 void **uncached_area); 1020bool esas2r_check_adapter(struct esas2r_adapter *a); 1021bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll); 1022void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq); 1023bool esas2r_send_task_mgmt(struct esas2r_adapter *a, 1024 struct esas2r_request *rqaux, u8 task_mgt_func); 1025void esas2r_do_tasklet_tasks(struct esas2r_adapter *a); 1026void esas2r_adapter_interrupt(struct esas2r_adapter *a); 1027void esas2r_do_deferred_processes(struct esas2r_adapter *a); 1028void esas2r_reset_bus(struct esas2r_adapter *a); 1029void esas2r_reset_adapter(struct esas2r_adapter *a); 1030void esas2r_timer_tick(struct esas2r_adapter *a); 1031const char *esas2r_get_model_name(struct esas2r_adapter *a); 1032const char *esas2r_get_model_name_short(struct esas2r_adapter *a); 1033u32 esas2r_stall_execution(struct esas2r_adapter *a, u32 start_time, 1034 u32 *delay); 1035void esas2r_build_flash_req(struct esas2r_adapter *a, 1036 struct esas2r_request *rq, 1037 u8 sub_func, 1038 u8 cksum, 1039 u32 addr, 1040 u32 length); 1041void esas2r_build_mgt_req(struct esas2r_adapter *a, 1042 struct esas2r_request *rq, 1043 u8 sub_func, 1044 u8 scan_gen, 1045 u16 dev_index, 1046 u32 length, 1047 void *data); 1048void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq); 1049void esas2r_build_cli_req(struct esas2r_adapter *a, 1050 struct esas2r_request *rq, 1051 u32 length, 1052 u32 cmd_rsp_len); 1053void esas2r_build_ioctl_req(struct esas2r_adapter *a, 1054 struct esas2r_request *rq, 1055 u32 length, 1056 u8 sub_func); 1057void esas2r_build_cfg_req(struct esas2r_adapter *a, 1058 struct esas2r_request *rq, 1059 u8 sub_func, 1060 u32 length, 1061 void *data); 1062void esas2r_power_down(struct esas2r_adapter *a); 1063bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll); 1064void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq); 1065u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo); 1066bool esas2r_process_fs_ioctl(struct esas2r_adapter *a, 1067 struct esas2r_ioctl_fs *fs, 1068 struct esas2r_request *rq, 1069 struct esas2r_sg_context *sgc); 1070bool esas2r_read_flash_block(struct esas2r_adapter *a, void *to, u32 from, 1071 u32 size); 1072bool esas2r_read_mem_block(struct esas2r_adapter *a, void *to, u32 from, 1073 u32 size); 1074bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi, 1075 struct esas2r_request *rq, struct esas2r_sg_context *sgc); 1076void esas2r_force_interrupt(struct esas2r_adapter *a); 1077void esas2r_local_start_request(struct esas2r_adapter *a, 1078 struct esas2r_request *rq); 1079void esas2r_process_adapter_reset(struct esas2r_adapter *a); 1080void esas2r_complete_request(struct esas2r_adapter *a, 1081 struct esas2r_request *rq); 1082void esas2r_dummy_complete(struct esas2r_adapter *a, 1083 struct esas2r_request *rq); 1084void esas2r_ae_complete(struct esas2r_adapter *a, struct esas2r_request *rq); 1085void esas2r_start_vda_request(struct esas2r_adapter *a, 1086 struct esas2r_request *rq); 1087bool esas2r_read_flash_rev(struct esas2r_adapter *a); 1088bool esas2r_read_image_type(struct esas2r_adapter *a); 1089bool esas2r_nvram_read_direct(struct esas2r_adapter *a); 1090bool esas2r_nvram_validate(struct esas2r_adapter *a); 1091void esas2r_nvram_set_defaults(struct esas2r_adapter *a); 1092bool esas2r_print_flash_rev(struct esas2r_adapter *a); 1093void esas2r_send_reset_ae(struct esas2r_adapter *a, bool pwr_mgt); 1094bool esas2r_init_msgs(struct esas2r_adapter *a); 1095bool esas2r_is_adapter_present(struct esas2r_adapter *a); 1096void esas2r_nuxi_mgt_data(u8 function, void *data); 1097void esas2r_nuxi_cfg_data(u8 function, void *data); 1098void esas2r_nuxi_ae_data(union atto_vda_ae *ae); 1099void esas2r_reset_chip(struct esas2r_adapter *a); 1100void esas2r_log_request_failure(struct esas2r_adapter *a, 1101 struct esas2r_request *rq); 1102void esas2r_polled_interrupt(struct esas2r_adapter *a); 1103bool esas2r_ioreq_aborted(struct esas2r_adapter *a, struct esas2r_request *rq, 1104 u8 status); 1105bool esas2r_build_sg_list_sge(struct esas2r_adapter *a, 1106 struct esas2r_sg_context *sgc); 1107bool esas2r_build_sg_list_prd(struct esas2r_adapter *a, 1108 struct esas2r_sg_context *sgc); 1109void esas2r_targ_db_initialize(struct esas2r_adapter *a); 1110void esas2r_targ_db_remove_all(struct esas2r_adapter *a, bool notify); 1111void esas2r_targ_db_report_changes(struct esas2r_adapter *a); 1112struct esas2r_target *esas2r_targ_db_add_raid(struct esas2r_adapter *a, 1113 struct esas2r_disc_context *dc); 1114struct esas2r_target *esas2r_targ_db_add_pthru(struct esas2r_adapter *a, 1115 struct esas2r_disc_context *dc, 1116 u8 *ident, 1117 u8 ident_len); 1118void esas2r_targ_db_remove(struct esas2r_adapter *a, struct esas2r_target *t); 1119struct esas2r_target *esas2r_targ_db_find_by_sas_addr(struct esas2r_adapter *a, 1120 u64 *sas_addr); 1121struct esas2r_target *esas2r_targ_db_find_by_ident(struct esas2r_adapter *a, 1122 void *identifier, 1123 u8 ident_len); 1124u16 esas2r_targ_db_find_next_present(struct esas2r_adapter *a, u16 target_id); 1125struct esas2r_target *esas2r_targ_db_find_by_virt_id(struct esas2r_adapter *a, 1126 u16 virt_id); 1127u16 esas2r_targ_db_get_tgt_cnt(struct esas2r_adapter *a); 1128void esas2r_disc_initialize(struct esas2r_adapter *a); 1129void esas2r_disc_start_waiting(struct esas2r_adapter *a); 1130void esas2r_disc_check_for_work(struct esas2r_adapter *a); 1131void esas2r_disc_check_complete(struct esas2r_adapter *a); 1132void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt); 1133bool esas2r_disc_start_port(struct esas2r_adapter *a); 1134void esas2r_disc_local_start_request(struct esas2r_adapter *a, 1135 struct esas2r_request *rq); 1136bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str); 1137bool esas2r_process_vda_ioctl(struct esas2r_adapter *a, 1138 struct atto_ioctl_vda *vi, 1139 struct esas2r_request *rq, 1140 struct esas2r_sg_context *sgc); 1141void esas2r_queue_fw_event(struct esas2r_adapter *a, 1142 enum fw_event_type type, 1143 void *data, 1144 int data_sz); 1145 1146/* Inline functions */ 1147 1148/* Allocate a chip scatter/gather list entry */ 1149static inline struct esas2r_mem_desc *esas2r_alloc_sgl(struct esas2r_adapter *a) 1150{ 1151 unsigned long flags; 1152 struct list_head *sgl; 1153 struct esas2r_mem_desc *result = NULL; 1154 1155 spin_lock_irqsave(&a->sg_list_lock, flags); 1156 if (likely(!list_empty(&a->free_sg_list_head))) { 1157 sgl = a->free_sg_list_head.next; 1158 result = list_entry(sgl, struct esas2r_mem_desc, next_desc); 1159 list_del_init(sgl); 1160 } 1161 spin_unlock_irqrestore(&a->sg_list_lock, flags); 1162 1163 return result; 1164} 1165 1166/* Initialize a scatter/gather context */ 1167static inline void esas2r_sgc_init(struct esas2r_sg_context *sgc, 1168 struct esas2r_adapter *a, 1169 struct esas2r_request *rq, 1170 struct atto_vda_sge *first) 1171{ 1172 sgc->adapter = a; 1173 sgc->first_req = rq; 1174 1175 /* 1176 * set the limit pointer such that an SGE pointer above this value 1177 * would be the first one to overflow the SGL. 1178 */ 1179 sgc->sge.a64.limit = (struct atto_vda_sge *)((u8 *)rq->vrq 1180 + (sizeof(union 1181 atto_vda_req) / 1182 8) 1183 - sizeof(struct 1184 atto_vda_sge)); 1185 if (first) { 1186 sgc->sge.a64.last = 1187 sgc->sge.a64.curr = first; 1188 rq->vrq->scsi.sg_list_offset = (u8) 1189 ((u8 *)first - 1190 (u8 *)rq->vrq); 1191 } else { 1192 sgc->sge.a64.last = 1193 sgc->sge.a64.curr = &rq->vrq->scsi.u.sge[0]; 1194 rq->vrq->scsi.sg_list_offset = 1195 (u8)offsetof(struct atto_vda_scsi_req, u.sge); 1196 } 1197 sgc->sge.a64.chain = NULL; 1198} 1199 1200static inline void esas2r_rq_init_request(struct esas2r_request *rq, 1201 struct esas2r_adapter *a) 1202{ 1203 union atto_vda_req *vrq = rq->vrq; 1204 1205 INIT_LIST_HEAD(&rq->sg_table_head); 1206 rq->data_buf = (void *)(vrq + 1); 1207 rq->interrupt_cb = NULL; 1208 rq->comp_cb = esas2r_complete_request_cb; 1209 rq->flags = 0; 1210 rq->timeout = 0; 1211 rq->req_stat = RS_PENDING; 1212 rq->req_type = RT_INI_REQ; 1213 1214 /* clear the outbound response */ 1215 rq->func_rsp.dwords[0] = 0; 1216 rq->func_rsp.dwords[1] = 0; 1217 1218 /* 1219 * clear the size of the VDA request. esas2r_build_sg_list() will 1220 * only allow the size of the request to grow. there are some 1221 * management requests that go through there twice and the second 1222 * time through sets a smaller request size. if this is not modified 1223 * at all we'll set it to the size of the entire VDA request. 1224 */ 1225 rq->vda_req_sz = RQ_SIZE_DEFAULT; 1226 1227 /* req_table entry should be NULL at this point - if not, halt */ 1228 1229 if (a->req_table[LOWORD(vrq->scsi.handle)]) { 1230 esas2r_bugon(); 1231 } 1232 1233 /* fill in the table for this handle so we can get back to the 1234 * request. 1235 */ 1236 a->req_table[LOWORD(vrq->scsi.handle)] = rq; 1237 1238 /* 1239 * add a reference number to the handle to make it unique (until it 1240 * wraps of course) while preserving the least significant word 1241 */ 1242 vrq->scsi.handle = (a->cmd_ref_no++ << 16) | (u16)vrq->scsi.handle; 1243 1244 /* 1245 * the following formats a SCSI request. the caller can override as 1246 * necessary. clear_vda_request can be called to clear the VDA 1247 * request for another type of request. 1248 */ 1249 vrq->scsi.function = VDA_FUNC_SCSI; 1250 vrq->scsi.sense_len = SENSE_DATA_SZ; 1251 1252 /* clear out sg_list_offset and chain_offset */ 1253 vrq->scsi.sg_list_offset = 0; 1254 vrq->scsi.chain_offset = 0; 1255 vrq->scsi.flags = 0; 1256 vrq->scsi.reserved = 0; 1257 1258 /* set the sense buffer to be the data payload buffer */ 1259 vrq->scsi.ppsense_buf 1260 = cpu_to_le64(rq->vrq_md->phys_addr + 1261 sizeof(union atto_vda_req)); 1262} 1263 1264static inline void esas2r_rq_free_sg_lists(struct esas2r_request *rq, 1265 struct esas2r_adapter *a) 1266{ 1267 unsigned long flags; 1268 1269 if (list_empty(&rq->sg_table_head)) 1270 return; 1271 1272 spin_lock_irqsave(&a->sg_list_lock, flags); 1273 list_splice_tail_init(&rq->sg_table_head, &a->free_sg_list_head); 1274 spin_unlock_irqrestore(&a->sg_list_lock, flags); 1275} 1276 1277static inline void esas2r_rq_destroy_request(struct esas2r_request *rq, 1278 struct esas2r_adapter *a) 1279 1280{ 1281 esas2r_rq_free_sg_lists(rq, a); 1282 a->req_table[LOWORD(rq->vrq->scsi.handle)] = NULL; 1283 rq->data_buf = NULL; 1284} 1285 1286static inline bool esas2r_is_tasklet_pending(struct esas2r_adapter *a) 1287{ 1288 1289 return test_bit(AF_BUSRST_NEEDED, &a->flags) || 1290 test_bit(AF_BUSRST_DETECTED, &a->flags) || 1291 test_bit(AF_CHPRST_NEEDED, &a->flags) || 1292 test_bit(AF_CHPRST_DETECTED, &a->flags) || 1293 test_bit(AF_PORT_CHANGE, &a->flags); 1294 1295} 1296 1297/* 1298 * Build the scatter/gather list for an I/O request according to the 1299 * specifications placed in the esas2r_sg_context. The caller must initialize 1300 * struct esas2r_sg_context prior to the initial call by calling 1301 * esas2r_sgc_init() 1302 */ 1303static inline bool esas2r_build_sg_list(struct esas2r_adapter *a, 1304 struct esas2r_request *rq, 1305 struct esas2r_sg_context *sgc) 1306{ 1307 if (unlikely(le32_to_cpu(rq->vrq->scsi.length) == 0)) 1308 return true; 1309 1310 return (*a->build_sgl)(a, sgc); 1311} 1312 1313static inline void esas2r_disable_chip_interrupts(struct esas2r_adapter *a) 1314{ 1315 if (atomic_inc_return(&a->dis_ints_cnt) == 1) 1316 esas2r_write_register_dword(a, MU_INT_MASK_OUT, 1317 ESAS2R_INT_DIS_MASK); 1318} 1319 1320static inline void esas2r_enable_chip_interrupts(struct esas2r_adapter *a) 1321{ 1322 if (atomic_dec_return(&a->dis_ints_cnt) == 0) 1323 esas2r_write_register_dword(a, MU_INT_MASK_OUT, 1324 ESAS2R_INT_ENB_MASK); 1325} 1326 1327/* Schedule a TASKLET to perform non-interrupt tasks that may require delays 1328 * or long completion times. 1329 */ 1330static inline void esas2r_schedule_tasklet(struct esas2r_adapter *a) 1331{ 1332 /* make sure we don't schedule twice */ 1333 if (!test_and_set_bit(AF_TASKLET_SCHEDULED, &a->flags)) 1334 tasklet_hi_schedule(&a->tasklet); 1335} 1336 1337static inline void esas2r_enable_heartbeat(struct esas2r_adapter *a) 1338{ 1339 if (!test_bit(AF_DEGRADED_MODE, &a->flags) && 1340 !test_bit(AF_CHPRST_PENDING, &a->flags) && 1341 (a->nvram->options2 & SASNVR2_HEARTBEAT)) 1342 set_bit(AF_HEARTBEAT_ENB, &a->flags); 1343 else 1344 clear_bit(AF_HEARTBEAT_ENB, &a->flags); 1345} 1346 1347static inline void esas2r_disable_heartbeat(struct esas2r_adapter *a) 1348{ 1349 clear_bit(AF_HEARTBEAT_ENB, &a->flags); 1350 clear_bit(AF_HEARTBEAT, &a->flags); 1351} 1352 1353/* Set the initial state for resetting the adapter on the next pass through 1354 * esas2r_do_deferred. 1355 */ 1356static inline void esas2r_local_reset_adapter(struct esas2r_adapter *a) 1357{ 1358 esas2r_disable_heartbeat(a); 1359 1360 set_bit(AF_CHPRST_NEEDED, &a->flags); 1361 set_bit(AF_CHPRST_PENDING, &a->flags); 1362 set_bit(AF_DISC_PENDING, &a->flags); 1363} 1364 1365/* See if an interrupt is pending on the adapter. */ 1366static inline bool esas2r_adapter_interrupt_pending(struct esas2r_adapter *a) 1367{ 1368 u32 intstat; 1369 1370 if (a->int_mask == 0) 1371 return false; 1372 1373 intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT); 1374 1375 if ((intstat & a->int_mask) == 0) 1376 return false; 1377 1378 esas2r_disable_chip_interrupts(a); 1379 1380 a->int_stat = intstat; 1381 a->int_mask = 0; 1382 1383 return true; 1384} 1385 1386static inline u16 esas2r_targ_get_id(struct esas2r_target *t, 1387 struct esas2r_adapter *a) 1388{ 1389 return (u16)(uintptr_t)(t - a->targetdb); 1390} 1391 1392/* Build and start an asynchronous event request */ 1393static inline void esas2r_start_ae_request(struct esas2r_adapter *a, 1394 struct esas2r_request *rq) 1395{ 1396 unsigned long flags; 1397 1398 esas2r_build_ae_req(a, rq); 1399 1400 spin_lock_irqsave(&a->queue_lock, flags); 1401 esas2r_start_vda_request(a, rq); 1402 spin_unlock_irqrestore(&a->queue_lock, flags); 1403} 1404 1405static inline void esas2r_comp_list_drain(struct esas2r_adapter *a, 1406 struct list_head *comp_list) 1407{ 1408 struct esas2r_request *rq; 1409 struct list_head *element, *next; 1410 1411 list_for_each_safe(element, next, comp_list) { 1412 rq = list_entry(element, struct esas2r_request, comp_list); 1413 list_del_init(element); 1414 esas2r_complete_request(a, rq); 1415 } 1416} 1417 1418/* sysfs handlers */ 1419extern struct bin_attribute bin_attr_fw; 1420extern struct bin_attribute bin_attr_fs; 1421extern struct bin_attribute bin_attr_vda; 1422extern struct bin_attribute bin_attr_hw; 1423extern struct bin_attribute bin_attr_live_nvram; 1424extern struct bin_attribute bin_attr_default_nvram; 1425 1426#endif /* ESAS2R_H */ 1427