1/** 2 * Copyright (C) 2005 - 2015 Avago Technologies 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License version 2 7 * as published by the Free Software Foundation. The full GNU General 8 * Public License is included in this distribution in the file called COPYING. 9 * 10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com) 11 * 12 * Contact Information: 13 * linux-drivers@avagotech.com 14 * 15 * Avago Technologies 16 * 3333 Susan Street 17 * Costa Mesa, CA 92626 18 */ 19 20#ifndef _BEISCSI_MAIN_ 21#define _BEISCSI_MAIN_ 22 23#include <linux/kernel.h> 24#include <linux/pci.h> 25#include <linux/if_ether.h> 26#include <linux/in.h> 27#include <linux/ctype.h> 28#include <linux/module.h> 29#include <linux/aer.h> 30#include <scsi/scsi.h> 31#include <scsi/scsi_cmnd.h> 32#include <scsi/scsi_device.h> 33#include <scsi/scsi_host.h> 34#include <scsi/iscsi_proto.h> 35#include <scsi/libiscsi.h> 36#include <scsi/scsi_transport_iscsi.h> 37 38#define DRV_NAME "be2iscsi" 39#define BUILD_STR "10.4.114.0" 40#define BE_NAME "Avago Technologies OneConnect" \ 41 "Open-iSCSI Driver version" BUILD_STR 42#define DRV_DESC BE_NAME " " "Driver" 43 44#define BE_VENDOR_ID 0x19A2 45#define ELX_VENDOR_ID 0x10DF 46/* DEVICE ID's for BE2 */ 47#define BE_DEVICE_ID1 0x212 48#define OC_DEVICE_ID1 0x702 49#define OC_DEVICE_ID2 0x703 50 51/* DEVICE ID's for BE3 */ 52#define BE_DEVICE_ID2 0x222 53#define OC_DEVICE_ID3 0x712 54 55/* DEVICE ID for SKH */ 56#define OC_SKH_ID1 0x722 57 58#define BE2_IO_DEPTH 1024 59#define BE2_MAX_SESSIONS 256 60#define BE2_CMDS_PER_CXN 128 61#define BE2_TMFS 16 62#define BE2_NOPOUT_REQ 16 63#define BE2_SGE 32 64#define BE2_DEFPDU_HDR_SZ 64 65#define BE2_DEFPDU_DATA_SZ 8192 66 67#define MAX_CPUS 64 68#define BEISCSI_MAX_NUM_CPUS 7 69 70#define BEISCSI_VER_STRLEN 32 71 72#define BEISCSI_SGLIST_ELEMENTS 30 73 74#define BEISCSI_CMD_PER_LUN 128 /* scsi_host->cmd_per_lun */ 75#define BEISCSI_MAX_SECTORS 1024 /* scsi_host->max_sectors */ 76#define BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE 128 /* Template size per cxn */ 77 78#define BEISCSI_MAX_CMD_LEN 16 /* scsi_host->max_cmd_len */ 79#define BEISCSI_NUM_MAX_LUN 256 /* scsi_host->max_lun */ 80#define BEISCSI_NUM_DEVICES_SUPPORTED 0x01 81#define BEISCSI_MAX_FRAGS_INIT 192 82#define BE_NUM_MSIX_ENTRIES 1 83 84#define MPU_EP_CONTROL 0 85#define MPU_EP_SEMAPHORE 0xac 86#define BE2_SOFT_RESET 0x5c 87#define BE2_PCI_ONLINE0 0xb0 88#define BE2_PCI_ONLINE1 0xb4 89#define BE2_SET_RESET 0x80 90#define BE2_MPU_IRAM_ONLINE 0x00000080 91 92#define BE_SENSE_INFO_SIZE 258 93#define BE_ISCSI_PDU_HEADER_SIZE 64 94#define BE_MIN_MEM_SIZE 16384 95#define MAX_CMD_SZ 65536 96#define IIOC_SCSI_DATA 0x05 /* Write Operation */ 97 98#define INVALID_SESS_HANDLE 0xFFFFFFFF 99 100/** 101 * Adapter States 102 **/ 103#define BE_ADAPTER_LINK_UP 0x001 104#define BE_ADAPTER_LINK_DOWN 0x002 105#define BE_ADAPTER_PCI_ERR 0x004 106#define BE_ADAPTER_STATE_SHUTDOWN 0x008 107#define BE_ADAPTER_CHECK_BOOT 0x010 108 109 110#define BEISCSI_CLEAN_UNLOAD 0x01 111#define BEISCSI_EEH_UNLOAD 0x02 112/** 113 * hardware needs the async PDU buffers to be posted in multiples of 8 114 * So have atleast 8 of them by default 115 */ 116 117#define HWI_GET_ASYNC_PDU_CTX(phwi, ulp_num) \ 118 (phwi->phwi_ctxt->pasync_ctx[ulp_num]) 119 120/********* Memory BAR register ************/ 121#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 0xfc 122/** 123 * Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt 124 * Disable" may still globally block interrupts in addition to individual 125 * interrupt masks; a mechanism for the device driver to block all interrupts 126 * atomically without having to arbitrate for the PCI Interrupt Disable bit 127 * with the OS. 128 */ 129#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK (1 << 29) /* bit 29 */ 130 131/********* ISR0 Register offset **********/ 132#define CEV_ISR0_OFFSET 0xC18 133#define CEV_ISR_SIZE 4 134 135/** 136 * Macros for reading/writing a protection domain or CSR registers 137 * in BladeEngine. 138 */ 139 140#define DB_TXULP0_OFFSET 0x40 141#define DB_RXULP0_OFFSET 0xA0 142/********* Event Q door bell *************/ 143#define DB_EQ_OFFSET DB_CQ_OFFSET 144#define DB_EQ_RING_ID_LOW_MASK 0x1FF /* bits 0 - 8 */ 145/* Clear the interrupt for this eq */ 146#define DB_EQ_CLR_SHIFT (9) /* bit 9 */ 147/* Must be 1 */ 148#define DB_EQ_EVNT_SHIFT (10) /* bit 10 */ 149/* Higher Order EQ_ID bit */ 150#define DB_EQ_RING_ID_HIGH_MASK 0x1F /* bits 11 - 15 */ 151#define DB_EQ_HIGH_SET_SHIFT 11 152#define DB_EQ_HIGH_FEILD_SHIFT 9 153/* Number of event entries processed */ 154#define DB_EQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */ 155/* Rearm bit */ 156#define DB_EQ_REARM_SHIFT (29) /* bit 29 */ 157 158/********* Compl Q door bell *************/ 159#define DB_CQ_OFFSET 0x120 160#define DB_CQ_RING_ID_LOW_MASK 0x3FF /* bits 0 - 9 */ 161/* Higher Order CQ_ID bit */ 162#define DB_CQ_RING_ID_HIGH_MASK 0x1F /* bits 11 - 15 */ 163#define DB_CQ_HIGH_SET_SHIFT 11 164#define DB_CQ_HIGH_FEILD_SHIFT 10 165 166/* Number of event entries processed */ 167#define DB_CQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */ 168/* Rearm bit */ 169#define DB_CQ_REARM_SHIFT (29) /* bit 29 */ 170 171#define GET_HWI_CONTROLLER_WS(pc) (pc->phwi_ctrlr) 172#define HWI_GET_DEF_BUFQ_ID(pc, ulp_num) (((struct hwi_controller *)\ 173 (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data[ulp_num].id) 174#define HWI_GET_DEF_HDRQ_ID(pc, ulp_num) (((struct hwi_controller *)\ 175 (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr[ulp_num].id) 176 177#define PAGES_REQUIRED(x) \ 178 ((x < PAGE_SIZE) ? 1 : ((x + PAGE_SIZE - 1) / PAGE_SIZE)) 179 180#define BEISCSI_MSI_NAME 20 /* size of msi_name string */ 181 182#define MEM_DESCR_OFFSET 8 183#define BEISCSI_DEFQ_HDR 1 184#define BEISCSI_DEFQ_DATA 0 185enum be_mem_enum { 186 HWI_MEM_ADDN_CONTEXT, 187 HWI_MEM_WRB, 188 HWI_MEM_WRBH, 189 HWI_MEM_SGLH, 190 HWI_MEM_SGE, 191 HWI_MEM_TEMPLATE_HDR_ULP0, 192 HWI_MEM_ASYNC_HEADER_BUF_ULP0, /* 6 */ 193 HWI_MEM_ASYNC_DATA_BUF_ULP0, 194 HWI_MEM_ASYNC_HEADER_RING_ULP0, 195 HWI_MEM_ASYNC_DATA_RING_ULP0, 196 HWI_MEM_ASYNC_HEADER_HANDLE_ULP0, 197 HWI_MEM_ASYNC_DATA_HANDLE_ULP0, /* 11 */ 198 HWI_MEM_ASYNC_PDU_CONTEXT_ULP0, 199 HWI_MEM_TEMPLATE_HDR_ULP1, 200 HWI_MEM_ASYNC_HEADER_BUF_ULP1, /* 14 */ 201 HWI_MEM_ASYNC_DATA_BUF_ULP1, 202 HWI_MEM_ASYNC_HEADER_RING_ULP1, 203 HWI_MEM_ASYNC_DATA_RING_ULP1, 204 HWI_MEM_ASYNC_HEADER_HANDLE_ULP1, 205 HWI_MEM_ASYNC_DATA_HANDLE_ULP1, /* 19 */ 206 HWI_MEM_ASYNC_PDU_CONTEXT_ULP1, 207 ISCSI_MEM_GLOBAL_HEADER, 208 SE_MEM_MAX 209}; 210 211struct be_bus_address32 { 212 unsigned int address_lo; 213 unsigned int address_hi; 214}; 215 216struct be_bus_address64 { 217 unsigned long long address; 218}; 219 220struct be_bus_address { 221 union { 222 struct be_bus_address32 a32; 223 struct be_bus_address64 a64; 224 } u; 225}; 226 227struct mem_array { 228 struct be_bus_address bus_address; /* Bus address of location */ 229 void *virtual_address; /* virtual address to the location */ 230 unsigned int size; /* Size required by memory block */ 231}; 232 233struct be_mem_descriptor { 234 unsigned int index; /* Index of this memory parameter */ 235 unsigned int category; /* type indicates cached/non-cached */ 236 unsigned int num_elements; /* number of elements in this 237 * descriptor 238 */ 239 unsigned int alignment_mask; /* Alignment mask for this block */ 240 unsigned int size_in_bytes; /* Size required by memory block */ 241 struct mem_array *mem_array; 242}; 243 244struct sgl_handle { 245 unsigned int sgl_index; 246 unsigned int type; 247 unsigned int cid; 248 struct iscsi_task *task; 249 struct iscsi_sge *pfrag; 250}; 251 252struct hba_parameters { 253 unsigned int ios_per_ctrl; 254 unsigned int cxns_per_ctrl; 255 unsigned int asyncpdus_per_ctrl; 256 unsigned int icds_per_ctrl; 257 unsigned int num_sge_per_io; 258 unsigned int defpdu_hdr_sz; 259 unsigned int defpdu_data_sz; 260 unsigned int num_cq_entries; 261 unsigned int num_eq_entries; 262 unsigned int wrbs_per_cxn; 263 unsigned int crashmode; 264 unsigned int hba_num; 265 266 unsigned int mgmt_ws_sz; 267 unsigned int hwi_ws_sz; 268 269 unsigned int eto; 270 unsigned int ldto; 271 272 unsigned int dbg_flags; 273 unsigned int num_cxn; 274 275 unsigned int eq_timer; 276 /** 277 * These are calculated from other params. They're here 278 * for debug purposes 279 */ 280 unsigned int num_mcc_pages; 281 unsigned int num_mcc_cq_pages; 282 unsigned int num_cq_pages; 283 unsigned int num_eq_pages; 284 285 unsigned int num_async_pdu_buf_pages; 286 unsigned int num_async_pdu_buf_sgl_pages; 287 unsigned int num_async_pdu_buf_cq_pages; 288 289 unsigned int num_async_pdu_hdr_pages; 290 unsigned int num_async_pdu_hdr_sgl_pages; 291 unsigned int num_async_pdu_hdr_cq_pages; 292 293 unsigned int num_sge; 294}; 295 296struct invalidate_command_table { 297 unsigned short icd; 298 unsigned short cid; 299} __packed; 300 301#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \ 302 (phwi_ctrlr->wrb_context[cri].ulp_num) 303struct hwi_wrb_context { 304 struct list_head wrb_handle_list; 305 struct list_head wrb_handle_drvr_list; 306 struct wrb_handle **pwrb_handle_base; 307 struct wrb_handle **pwrb_handle_basestd; 308 struct iscsi_wrb *plast_wrb; 309 unsigned short alloc_index; 310 unsigned short free_index; 311 unsigned short wrb_handles_available; 312 unsigned short cid; 313 uint8_t ulp_num; /* ULP to which CID binded */ 314 uint16_t register_set; 315 uint16_t doorbell_format; 316 uint32_t doorbell_offset; 317}; 318 319struct ulp_cid_info { 320 unsigned short *cid_array; 321 unsigned short avlbl_cids; 322 unsigned short cid_alloc; 323 unsigned short cid_free; 324}; 325 326#include "be.h" 327#define chip_be2(phba) (phba->generation == BE_GEN2) 328#define chip_be3_r(phba) (phba->generation == BE_GEN3) 329#define is_chip_be2_be3r(phba) (chip_be3_r(phba) || (chip_be2(phba))) 330 331#define BEISCSI_ULP0 0 332#define BEISCSI_ULP1 1 333#define BEISCSI_ULP_COUNT 2 334#define BEISCSI_ULP0_LOADED 0x01 335#define BEISCSI_ULP1_LOADED 0x02 336 337#define BEISCSI_ULP_AVLBL_CID(phba, ulp_num) \ 338 (((struct ulp_cid_info *)phba->cid_array_info[ulp_num])->avlbl_cids) 339#define BEISCSI_ULP0_AVLBL_CID(phba) \ 340 BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP0) 341#define BEISCSI_ULP1_AVLBL_CID(phba) \ 342 BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP1) 343 344struct beiscsi_hba { 345 struct hba_parameters params; 346 struct hwi_controller *phwi_ctrlr; 347 unsigned int mem_req[SE_MEM_MAX]; 348 /* PCI BAR mapped addresses */ 349 u8 __iomem *csr_va; /* CSR */ 350 u8 __iomem *db_va; /* Door Bell */ 351 u8 __iomem *pci_va; /* PCI Config */ 352 struct be_bus_address csr_pa; /* CSR */ 353 struct be_bus_address db_pa; /* CSR */ 354 struct be_bus_address pci_pa; /* CSR */ 355 /* PCI representation of our HBA */ 356 struct pci_dev *pcidev; 357 unsigned short asic_revision; 358 unsigned int num_cpus; 359 unsigned int nxt_cqid; 360 struct msix_entry msix_entries[MAX_CPUS]; 361 char *msi_name[MAX_CPUS]; 362 bool msix_enabled; 363 struct be_mem_descriptor *init_mem; 364 365 unsigned short io_sgl_alloc_index; 366 unsigned short io_sgl_free_index; 367 unsigned short io_sgl_hndl_avbl; 368 struct sgl_handle **io_sgl_hndl_base; 369 struct sgl_handle **sgl_hndl_array; 370 371 unsigned short eh_sgl_alloc_index; 372 unsigned short eh_sgl_free_index; 373 unsigned short eh_sgl_hndl_avbl; 374 struct sgl_handle **eh_sgl_hndl_base; 375 spinlock_t io_sgl_lock; 376 spinlock_t mgmt_sgl_lock; 377 spinlock_t isr_lock; 378 spinlock_t async_pdu_lock; 379 unsigned int age; 380 struct list_head hba_queue; 381#define BE_MAX_SESSION 2048 382#define BE_SET_CID_TO_CRI(cri_index, cid) \ 383 (phba->cid_to_cri_map[cid] = cri_index) 384#define BE_GET_CRI_FROM_CID(cid) (phba->cid_to_cri_map[cid]) 385 unsigned short cid_to_cri_map[BE_MAX_SESSION]; 386 struct ulp_cid_info *cid_array_info[BEISCSI_ULP_COUNT]; 387 struct iscsi_endpoint **ep_array; 388 struct beiscsi_conn **conn_table; 389 struct iscsi_boot_kset *boot_kset; 390 struct Scsi_Host *shost; 391 struct iscsi_iface *ipv4_iface; 392 struct iscsi_iface *ipv6_iface; 393 struct { 394 /** 395 * group together since they are used most frequently 396 * for cid to cri conversion 397 */ 398 unsigned int phys_port; 399 unsigned int eqid_count; 400 unsigned int cqid_count; 401 unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT]; 402#define BEISCSI_GET_CID_COUNT(phba, ulp_num) \ 403 (phba->fw_config.iscsi_cid_count[ulp_num]) 404 unsigned int iscsi_cid_count[BEISCSI_ULP_COUNT]; 405 unsigned int iscsi_icd_count[BEISCSI_ULP_COUNT]; 406 unsigned int iscsi_icd_start[BEISCSI_ULP_COUNT]; 407 unsigned int iscsi_chain_start[BEISCSI_ULP_COUNT]; 408 unsigned int iscsi_chain_count[BEISCSI_ULP_COUNT]; 409 410 unsigned short iscsi_features; 411 uint16_t dual_ulp_aware; 412 unsigned long ulp_supported; 413 } fw_config; 414 415 unsigned int state; 416 bool fw_timeout; 417 bool ue_detected; 418 struct delayed_work beiscsi_hw_check_task; 419 420 bool mac_addr_set; 421 u8 mac_address[ETH_ALEN]; 422 char fw_ver_str[BEISCSI_VER_STRLEN]; 423 char wq_name[20]; 424 struct workqueue_struct *wq; /* The actuak work queue */ 425 struct be_ctrl_info ctrl; 426 unsigned int generation; 427 unsigned int interface_handle; 428 struct mgmt_session_info boot_sess; 429 struct invalidate_command_table inv_tbl[128]; 430 431 struct be_aic_obj aic_obj[MAX_CPUS]; 432 unsigned int attr_log_enable; 433 int (*iotask_fn)(struct iscsi_task *, 434 struct scatterlist *sg, 435 uint32_t num_sg, uint32_t xferlen, 436 uint32_t writedir); 437}; 438 439struct beiscsi_session { 440 struct pci_pool *bhs_pool; 441}; 442 443/** 444 * struct beiscsi_conn - iscsi connection structure 445 */ 446struct beiscsi_conn { 447 struct iscsi_conn *conn; 448 struct beiscsi_hba *phba; 449 u32 exp_statsn; 450 u32 doorbell_offset; 451 u32 beiscsi_conn_cid; 452 struct beiscsi_endpoint *ep; 453 unsigned short login_in_progress; 454 struct wrb_handle *plogin_wrb_handle; 455 struct sgl_handle *plogin_sgl_handle; 456 struct beiscsi_session *beiscsi_sess; 457 struct iscsi_task *task; 458}; 459 460/* This structure is used by the chip */ 461struct pdu_data_out { 462 u32 dw[12]; 463}; 464/** 465 * Pseudo amap definition in which each bit of the actual structure is defined 466 * as a byte: used to calculate offset/shift/mask of each field 467 */ 468struct amap_pdu_data_out { 469 u8 opcode[6]; /* opcode */ 470 u8 rsvd0[2]; /* should be 0 */ 471 u8 rsvd1[7]; 472 u8 final_bit; /* F bit */ 473 u8 rsvd2[16]; 474 u8 ahs_length[8]; /* no AHS */ 475 u8 data_len_hi[8]; 476 u8 data_len_lo[16]; /* DataSegmentLength */ 477 u8 lun[64]; 478 u8 itt[32]; /* ITT; initiator task tag */ 479 u8 ttt[32]; /* TTT; valid for R2T or 0xffffffff */ 480 u8 rsvd3[32]; 481 u8 exp_stat_sn[32]; 482 u8 rsvd4[32]; 483 u8 data_sn[32]; 484 u8 buffer_offset[32]; 485 u8 rsvd5[32]; 486}; 487 488struct be_cmd_bhs { 489 struct iscsi_scsi_req iscsi_hdr; 490 unsigned char pad1[16]; 491 struct pdu_data_out iscsi_data_pdu; 492 unsigned char pad2[BE_SENSE_INFO_SIZE - 493 sizeof(struct pdu_data_out)]; 494}; 495 496struct beiscsi_io_task { 497 struct wrb_handle *pwrb_handle; 498 struct sgl_handle *psgl_handle; 499 struct beiscsi_conn *conn; 500 struct scsi_cmnd *scsi_cmnd; 501 unsigned int cmd_sn; 502 unsigned int flags; 503 unsigned short cid; 504 unsigned short header_len; 505 itt_t libiscsi_itt; 506 struct be_cmd_bhs *cmd_bhs; 507 struct be_bus_address bhs_pa; 508 unsigned short bhs_len; 509 dma_addr_t mtask_addr; 510 uint32_t mtask_data_count; 511 uint8_t wrb_type; 512}; 513 514struct be_nonio_bhs { 515 struct iscsi_hdr iscsi_hdr; 516 unsigned char pad1[16]; 517 struct pdu_data_out iscsi_data_pdu; 518 unsigned char pad2[BE_SENSE_INFO_SIZE - 519 sizeof(struct pdu_data_out)]; 520}; 521 522struct be_status_bhs { 523 struct iscsi_scsi_req iscsi_hdr; 524 unsigned char pad1[16]; 525 /** 526 * The plus 2 below is to hold the sense info length that gets 527 * DMA'ed by RxULP 528 */ 529 unsigned char sense_info[BE_SENSE_INFO_SIZE]; 530}; 531 532struct iscsi_sge { 533 u32 dw[4]; 534}; 535 536/** 537 * Pseudo amap definition in which each bit of the actual structure is defined 538 * as a byte: used to calculate offset/shift/mask of each field 539 */ 540struct amap_iscsi_sge { 541 u8 addr_hi[32]; 542 u8 addr_lo[32]; 543 u8 sge_offset[22]; /* DWORD 2 */ 544 u8 rsvd0[9]; /* DWORD 2 */ 545 u8 last_sge; /* DWORD 2 */ 546 u8 len[17]; /* DWORD 3 */ 547 u8 rsvd1[15]; /* DWORD 3 */ 548}; 549 550struct beiscsi_offload_params { 551 u32 dw[6]; 552}; 553 554#define OFFLD_PARAMS_ERL 0x00000003 555#define OFFLD_PARAMS_DDE 0x00000004 556#define OFFLD_PARAMS_HDE 0x00000008 557#define OFFLD_PARAMS_IR2T 0x00000010 558#define OFFLD_PARAMS_IMD 0x00000020 559#define OFFLD_PARAMS_DATA_SEQ_INORDER 0x00000040 560#define OFFLD_PARAMS_PDU_SEQ_INORDER 0x00000080 561#define OFFLD_PARAMS_MAX_R2T 0x00FFFF00 562 563/** 564 * Pseudo amap definition in which each bit of the actual structure is defined 565 * as a byte: used to calculate offset/shift/mask of each field 566 */ 567struct amap_beiscsi_offload_params { 568 u8 max_burst_length[32]; 569 u8 max_send_data_segment_length[32]; 570 u8 first_burst_length[32]; 571 u8 erl[2]; 572 u8 dde[1]; 573 u8 hde[1]; 574 u8 ir2t[1]; 575 u8 imd[1]; 576 u8 data_seq_inorder[1]; 577 u8 pdu_seq_inorder[1]; 578 u8 max_r2t[16]; 579 u8 pad[8]; 580 u8 exp_statsn[32]; 581 u8 max_recv_data_segment_length[32]; 582}; 583 584/* void hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 585 struct beiscsi_hba *phba, struct sol_cqe *psol);*/ 586 587struct async_pdu_handle { 588 struct list_head link; 589 struct be_bus_address pa; 590 void *pbuffer; 591 unsigned int consumed; 592 unsigned char index; 593 unsigned char is_header; 594 unsigned short cri; 595 unsigned long buffer_len; 596}; 597 598struct hwi_async_entry { 599 struct { 600 unsigned char hdr_received; 601 unsigned char hdr_len; 602 unsigned short bytes_received; 603 unsigned int bytes_needed; 604 struct list_head list; 605 } wait_queue; 606 607 struct list_head header_busy_list; 608 struct list_head data_busy_list; 609}; 610 611struct hwi_async_pdu_context { 612 struct { 613 struct be_bus_address pa_base; 614 void *va_base; 615 void *ring_base; 616 struct async_pdu_handle *handle_base; 617 618 unsigned int host_write_ptr; 619 unsigned int ep_read_ptr; 620 unsigned int writables; 621 622 unsigned int free_entries; 623 unsigned int busy_entries; 624 625 struct list_head free_list; 626 } async_header; 627 628 struct { 629 struct be_bus_address pa_base; 630 void *va_base; 631 void *ring_base; 632 struct async_pdu_handle *handle_base; 633 634 unsigned int host_write_ptr; 635 unsigned int ep_read_ptr; 636 unsigned int writables; 637 638 unsigned int free_entries; 639 unsigned int busy_entries; 640 struct list_head free_list; 641 } async_data; 642 643 unsigned int buffer_size; 644 unsigned int num_entries; 645#define BE_GET_ASYNC_CRI_FROM_CID(cid) (pasync_ctx->cid_to_async_cri_map[cid]) 646 unsigned short cid_to_async_cri_map[BE_MAX_SESSION]; 647 /** 648 * This is a varying size list! Do not add anything 649 * after this entry!! 650 */ 651 struct hwi_async_entry *async_entry; 652}; 653 654#define PDUCQE_CODE_MASK 0x0000003F 655#define PDUCQE_DPL_MASK 0xFFFF0000 656#define PDUCQE_INDEX_MASK 0x0000FFFF 657 658struct i_t_dpdu_cqe { 659 u32 dw[4]; 660} __packed; 661 662/** 663 * Pseudo amap definition in which each bit of the actual structure is defined 664 * as a byte: used to calculate offset/shift/mask of each field 665 */ 666struct amap_i_t_dpdu_cqe { 667 u8 db_addr_hi[32]; 668 u8 db_addr_lo[32]; 669 u8 code[6]; 670 u8 cid[10]; 671 u8 dpl[16]; 672 u8 index[16]; 673 u8 num_cons[10]; 674 u8 rsvd0[4]; 675 u8 final; 676 u8 valid; 677} __packed; 678 679struct amap_i_t_dpdu_cqe_v2 { 680 u8 db_addr_hi[32]; /* DWORD 0 */ 681 u8 db_addr_lo[32]; /* DWORD 1 */ 682 u8 code[6]; /* DWORD 2 */ 683 u8 num_cons; /* DWORD 2*/ 684 u8 rsvd0[8]; /* DWORD 2 */ 685 u8 dpl[17]; /* DWORD 2 */ 686 u8 index[16]; /* DWORD 3 */ 687 u8 cid[13]; /* DWORD 3 */ 688 u8 rsvd1; /* DWORD 3 */ 689 u8 final; /* DWORD 3 */ 690 u8 valid; /* DWORD 3 */ 691} __packed; 692 693#define CQE_VALID_MASK 0x80000000 694#define CQE_CODE_MASK 0x0000003F 695#define CQE_CID_MASK 0x0000FFC0 696 697#define EQE_VALID_MASK 0x00000001 698#define EQE_MAJORCODE_MASK 0x0000000E 699#define EQE_RESID_MASK 0xFFFF0000 700 701struct be_eq_entry { 702 u32 dw[1]; 703} __packed; 704 705/** 706 * Pseudo amap definition in which each bit of the actual structure is defined 707 * as a byte: used to calculate offset/shift/mask of each field 708 */ 709struct amap_eq_entry { 710 u8 valid; /* DWORD 0 */ 711 u8 major_code[3]; /* DWORD 0 */ 712 u8 minor_code[12]; /* DWORD 0 */ 713 u8 resource_id[16]; /* DWORD 0 */ 714 715} __packed; 716 717struct cq_db { 718 u32 dw[1]; 719} __packed; 720 721/** 722 * Pseudo amap definition in which each bit of the actual structure is defined 723 * as a byte: used to calculate offset/shift/mask of each field 724 */ 725struct amap_cq_db { 726 u8 qid[10]; 727 u8 event[1]; 728 u8 rsvd0[5]; 729 u8 num_popped[13]; 730 u8 rearm[1]; 731 u8 rsvd1[2]; 732} __packed; 733 734void beiscsi_process_eq(struct beiscsi_hba *phba); 735 736struct iscsi_wrb { 737 u32 dw[16]; 738} __packed; 739 740#define WRB_TYPE_MASK 0xF0000000 741#define SKH_WRB_TYPE_OFFSET 27 742#define BE_WRB_TYPE_OFFSET 28 743 744#define ADAPTER_SET_WRB_TYPE(pwrb, wrb_type, type_offset) \ 745 (pwrb->dw[0] |= (wrb_type << type_offset)) 746 747/** 748 * Pseudo amap definition in which each bit of the actual structure is defined 749 * as a byte: used to calculate offset/shift/mask of each field 750 */ 751struct amap_iscsi_wrb { 752 u8 lun[14]; /* DWORD 0 */ 753 u8 lt; /* DWORD 0 */ 754 u8 invld; /* DWORD 0 */ 755 u8 wrb_idx[8]; /* DWORD 0 */ 756 u8 dsp; /* DWORD 0 */ 757 u8 dmsg; /* DWORD 0 */ 758 u8 undr_run; /* DWORD 0 */ 759 u8 over_run; /* DWORD 0 */ 760 u8 type[4]; /* DWORD 0 */ 761 u8 ptr2nextwrb[8]; /* DWORD 1 */ 762 u8 r2t_exp_dtl[24]; /* DWORD 1 */ 763 u8 sgl_icd_idx[12]; /* DWORD 2 */ 764 u8 rsvd0[20]; /* DWORD 2 */ 765 u8 exp_data_sn[32]; /* DWORD 3 */ 766 u8 iscsi_bhs_addr_hi[32]; /* DWORD 4 */ 767 u8 iscsi_bhs_addr_lo[32]; /* DWORD 5 */ 768 u8 cmdsn_itt[32]; /* DWORD 6 */ 769 u8 dif_ref_tag[32]; /* DWORD 7 */ 770 u8 sge0_addr_hi[32]; /* DWORD 8 */ 771 u8 sge0_addr_lo[32]; /* DWORD 9 */ 772 u8 sge0_offset[22]; /* DWORD 10 */ 773 u8 pbs; /* DWORD 10 */ 774 u8 dif_mode[2]; /* DWORD 10 */ 775 u8 rsvd1[6]; /* DWORD 10 */ 776 u8 sge0_last; /* DWORD 10 */ 777 u8 sge0_len[17]; /* DWORD 11 */ 778 u8 dif_meta_tag[14]; /* DWORD 11 */ 779 u8 sge0_in_ddr; /* DWORD 11 */ 780 u8 sge1_addr_hi[32]; /* DWORD 12 */ 781 u8 sge1_addr_lo[32]; /* DWORD 13 */ 782 u8 sge1_r2t_offset[22]; /* DWORD 14 */ 783 u8 rsvd2[9]; /* DWORD 14 */ 784 u8 sge1_last; /* DWORD 14 */ 785 u8 sge1_len[17]; /* DWORD 15 */ 786 u8 ref_sgl_icd_idx[12]; /* DWORD 15 */ 787 u8 rsvd3[2]; /* DWORD 15 */ 788 u8 sge1_in_ddr; /* DWORD 15 */ 789 790} __packed; 791 792struct amap_iscsi_wrb_v2 { 793 u8 r2t_exp_dtl[25]; /* DWORD 0 */ 794 u8 rsvd0[2]; /* DWORD 0*/ 795 u8 type[5]; /* DWORD 0 */ 796 u8 ptr2nextwrb[8]; /* DWORD 1 */ 797 u8 wrb_idx[8]; /* DWORD 1 */ 798 u8 lun[16]; /* DWORD 1 */ 799 u8 sgl_idx[16]; /* DWORD 2 */ 800 u8 ref_sgl_icd_idx[16]; /* DWORD 2 */ 801 u8 exp_data_sn[32]; /* DWORD 3 */ 802 u8 iscsi_bhs_addr_hi[32]; /* DWORD 4 */ 803 u8 iscsi_bhs_addr_lo[32]; /* DWORD 5 */ 804 u8 cq_id[16]; /* DWORD 6 */ 805 u8 rsvd1[16]; /* DWORD 6 */ 806 u8 cmdsn_itt[32]; /* DWORD 7 */ 807 u8 sge0_addr_hi[32]; /* DWORD 8 */ 808 u8 sge0_addr_lo[32]; /* DWORD 9 */ 809 u8 sge0_offset[24]; /* DWORD 10 */ 810 u8 rsvd2[7]; /* DWORD 10 */ 811 u8 sge0_last; /* DWORD 10 */ 812 u8 sge0_len[17]; /* DWORD 11 */ 813 u8 rsvd3[7]; /* DWORD 11 */ 814 u8 diff_enbl; /* DWORD 11 */ 815 u8 u_run; /* DWORD 11 */ 816 u8 o_run; /* DWORD 11 */ 817 u8 invalid; /* DWORD 11 */ 818 u8 dsp; /* DWORD 11 */ 819 u8 dmsg; /* DWORD 11 */ 820 u8 rsvd4; /* DWORD 11 */ 821 u8 lt; /* DWORD 11 */ 822 u8 sge1_addr_hi[32]; /* DWORD 12 */ 823 u8 sge1_addr_lo[32]; /* DWORD 13 */ 824 u8 sge1_r2t_offset[24]; /* DWORD 14 */ 825 u8 rsvd5[7]; /* DWORD 14 */ 826 u8 sge1_last; /* DWORD 14 */ 827 u8 sge1_len[17]; /* DWORD 15 */ 828 u8 rsvd6[15]; /* DWORD 15 */ 829} __packed; 830 831 832struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid); 833void 834free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle); 835 836void beiscsi_process_all_cqs(struct work_struct *work); 837void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, 838 struct iscsi_task *task); 839 840void hwi_ring_cq_db(struct beiscsi_hba *phba, 841 unsigned int id, unsigned int num_processed, 842 unsigned char rearm, unsigned char event); 843 844unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq); 845 846static inline bool beiscsi_error(struct beiscsi_hba *phba) 847{ 848 return phba->ue_detected || phba->fw_timeout; 849} 850 851struct pdu_nop_out { 852 u32 dw[12]; 853}; 854 855/** 856 * Pseudo amap definition in which each bit of the actual structure is defined 857 * as a byte: used to calculate offset/shift/mask of each field 858 */ 859struct amap_pdu_nop_out { 860 u8 opcode[6]; /* opcode 0x00 */ 861 u8 i_bit; /* I Bit */ 862 u8 x_bit; /* reserved; should be 0 */ 863 u8 fp_bit_filler1[7]; 864 u8 f_bit; /* always 1 */ 865 u8 reserved1[16]; 866 u8 ahs_length[8]; /* no AHS */ 867 u8 data_len_hi[8]; 868 u8 data_len_lo[16]; /* DataSegmentLength */ 869 u8 lun[64]; 870 u8 itt[32]; /* initiator id for ping or 0xffffffff */ 871 u8 ttt[32]; /* target id for ping or 0xffffffff */ 872 u8 cmd_sn[32]; 873 u8 exp_stat_sn[32]; 874 u8 reserved5[128]; 875}; 876 877#define PDUBASE_OPCODE_MASK 0x0000003F 878#define PDUBASE_DATALENHI_MASK 0x0000FF00 879#define PDUBASE_DATALENLO_MASK 0xFFFF0000 880 881struct pdu_base { 882 u32 dw[16]; 883} __packed; 884 885/** 886 * Pseudo amap definition in which each bit of the actual structure is defined 887 * as a byte: used to calculate offset/shift/mask of each field 888 */ 889struct amap_pdu_base { 890 u8 opcode[6]; 891 u8 i_bit; /* immediate bit */ 892 u8 x_bit; /* reserved, always 0 */ 893 u8 reserved1[24]; /* opcode-specific fields */ 894 u8 ahs_length[8]; /* length units is 4 byte words */ 895 u8 data_len_hi[8]; 896 u8 data_len_lo[16]; /* DatasegmentLength */ 897 u8 lun[64]; /* lun or opcode-specific fields */ 898 u8 itt[32]; /* initiator task tag */ 899 u8 reserved4[224]; 900}; 901 902struct iscsi_target_context_update_wrb { 903 u32 dw[16]; 904} __packed; 905 906/** 907 * Pseudo amap definition in which each bit of the actual structure is defined 908 * as a byte: used to calculate offset/shift/mask of each field 909 */ 910#define BE_TGT_CTX_UPDT_CMD 0x07 911struct amap_iscsi_target_context_update_wrb { 912 u8 lun[14]; /* DWORD 0 */ 913 u8 lt; /* DWORD 0 */ 914 u8 invld; /* DWORD 0 */ 915 u8 wrb_idx[8]; /* DWORD 0 */ 916 u8 dsp; /* DWORD 0 */ 917 u8 dmsg; /* DWORD 0 */ 918 u8 undr_run; /* DWORD 0 */ 919 u8 over_run; /* DWORD 0 */ 920 u8 type[4]; /* DWORD 0 */ 921 u8 ptr2nextwrb[8]; /* DWORD 1 */ 922 u8 max_burst_length[19]; /* DWORD 1 */ 923 u8 rsvd0[5]; /* DWORD 1 */ 924 u8 rsvd1[15]; /* DWORD 2 */ 925 u8 max_send_data_segment_length[17]; /* DWORD 2 */ 926 u8 first_burst_length[14]; /* DWORD 3 */ 927 u8 rsvd2[2]; /* DWORD 3 */ 928 u8 tx_wrbindex_drv_msg[8]; /* DWORD 3 */ 929 u8 rsvd3[5]; /* DWORD 3 */ 930 u8 session_state[3]; /* DWORD 3 */ 931 u8 rsvd4[16]; /* DWORD 4 */ 932 u8 tx_jumbo; /* DWORD 4 */ 933 u8 hde; /* DWORD 4 */ 934 u8 dde; /* DWORD 4 */ 935 u8 erl[2]; /* DWORD 4 */ 936 u8 domain_id[5]; /* DWORD 4 */ 937 u8 mode; /* DWORD 4 */ 938 u8 imd; /* DWORD 4 */ 939 u8 ir2t; /* DWORD 4 */ 940 u8 notpredblq[2]; /* DWORD 4 */ 941 u8 compltonack; /* DWORD 4 */ 942 u8 stat_sn[32]; /* DWORD 5 */ 943 u8 pad_buffer_addr_hi[32]; /* DWORD 6 */ 944 u8 pad_buffer_addr_lo[32]; /* DWORD 7 */ 945 u8 pad_addr_hi[32]; /* DWORD 8 */ 946 u8 pad_addr_lo[32]; /* DWORD 9 */ 947 u8 rsvd5[32]; /* DWORD 10 */ 948 u8 rsvd6[32]; /* DWORD 11 */ 949 u8 rsvd7[32]; /* DWORD 12 */ 950 u8 rsvd8[32]; /* DWORD 13 */ 951 u8 rsvd9[32]; /* DWORD 14 */ 952 u8 rsvd10[32]; /* DWORD 15 */ 953 954} __packed; 955 956#define BEISCSI_MAX_RECV_DATASEG_LEN (64 * 1024) 957#define BEISCSI_MAX_CXNS 1 958struct amap_iscsi_target_context_update_wrb_v2 { 959 u8 max_burst_length[24]; /* DWORD 0 */ 960 u8 rsvd0[3]; /* DWORD 0 */ 961 u8 type[5]; /* DWORD 0 */ 962 u8 ptr2nextwrb[8]; /* DWORD 1 */ 963 u8 wrb_idx[8]; /* DWORD 1 */ 964 u8 rsvd1[16]; /* DWORD 1 */ 965 u8 max_send_data_segment_length[24]; /* DWORD 2 */ 966 u8 rsvd2[8]; /* DWORD 2 */ 967 u8 first_burst_length[24]; /* DWORD 3 */ 968 u8 rsvd3[8]; /* DOWRD 3 */ 969 u8 max_r2t[16]; /* DWORD 4 */ 970 u8 rsvd4; /* DWORD 4 */ 971 u8 hde; /* DWORD 4 */ 972 u8 dde; /* DWORD 4 */ 973 u8 erl[2]; /* DWORD 4 */ 974 u8 rsvd5[6]; /* DWORD 4 */ 975 u8 imd; /* DWORD 4 */ 976 u8 ir2t; /* DWORD 4 */ 977 u8 rsvd6[3]; /* DWORD 4 */ 978 u8 stat_sn[32]; /* DWORD 5 */ 979 u8 rsvd7[32]; /* DWORD 6 */ 980 u8 rsvd8[32]; /* DWORD 7 */ 981 u8 max_recv_dataseg_len[24]; /* DWORD 8 */ 982 u8 rsvd9[8]; /* DWORD 8 */ 983 u8 rsvd10[32]; /* DWORD 9 */ 984 u8 rsvd11[32]; /* DWORD 10 */ 985 u8 max_cxns[16]; /* DWORD 11 */ 986 u8 rsvd12[11]; /* DWORD 11*/ 987 u8 invld; /* DWORD 11 */ 988 u8 rsvd13;/* DWORD 11*/ 989 u8 dmsg; /* DWORD 11 */ 990 u8 data_seq_inorder; /* DWORD 11 */ 991 u8 pdu_seq_inorder; /* DWORD 11 */ 992 u8 rsvd14[32]; /*DWORD 12 */ 993 u8 rsvd15[32]; /* DWORD 13 */ 994 u8 rsvd16[32]; /* DWORD 14 */ 995 u8 rsvd17[32]; /* DWORD 15 */ 996} __packed; 997 998 999struct be_ring { 1000 u32 pages; /* queue size in pages */ 1001 u32 id; /* queue id assigned by beklib */ 1002 u32 num; /* number of elements in queue */ 1003 u32 cidx; /* consumer index */ 1004 u32 pidx; /* producer index -- not used by most rings */ 1005 u32 item_size; /* size in bytes of one object */ 1006 u8 ulp_num; /* ULP to which CID binded */ 1007 u16 register_set; 1008 u16 doorbell_format; 1009 u32 doorbell_offset; 1010 1011 void *va; /* The virtual address of the ring. This 1012 * should be last to allow 32 & 64 bit debugger 1013 * extensions to work. 1014 */ 1015}; 1016 1017struct hwi_controller { 1018 struct list_head io_sgl_list; 1019 struct list_head eh_sgl_list; 1020 struct sgl_handle *psgl_handle_base; 1021 unsigned int wrb_mem_index; 1022 1023 struct hwi_wrb_context *wrb_context; 1024 struct mcc_wrb *pmcc_wrb_base; 1025 struct be_ring default_pdu_hdr[BEISCSI_ULP_COUNT]; 1026 struct be_ring default_pdu_data[BEISCSI_ULP_COUNT]; 1027 struct hwi_context_memory *phwi_ctxt; 1028}; 1029 1030enum hwh_type_enum { 1031 HWH_TYPE_IO = 1, 1032 HWH_TYPE_LOGOUT = 2, 1033 HWH_TYPE_TMF = 3, 1034 HWH_TYPE_NOP = 4, 1035 HWH_TYPE_IO_RD = 5, 1036 HWH_TYPE_LOGIN = 11, 1037 HWH_TYPE_INVALID = 0xFFFFFFFF 1038}; 1039 1040struct wrb_handle { 1041 enum hwh_type_enum type; 1042 unsigned short wrb_index; 1043 unsigned short nxt_wrb_index; 1044 1045 struct iscsi_task *pio_handle; 1046 struct iscsi_wrb *pwrb; 1047}; 1048 1049struct hwi_context_memory { 1050 /* Adaptive interrupt coalescing (AIC) info */ 1051 u16 min_eqd; /* in usecs */ 1052 u16 max_eqd; /* in usecs */ 1053 u16 cur_eqd; /* in usecs */ 1054 struct be_eq_obj be_eq[MAX_CPUS]; 1055 struct be_queue_info be_cq[MAX_CPUS - 1]; 1056 1057 struct be_queue_info *be_wrbq; 1058 struct be_queue_info be_def_hdrq[BEISCSI_ULP_COUNT]; 1059 struct be_queue_info be_def_dataq[BEISCSI_ULP_COUNT]; 1060 struct hwi_async_pdu_context *pasync_ctx[BEISCSI_ULP_COUNT]; 1061}; 1062 1063/* Logging related definitions */ 1064#define BEISCSI_LOG_INIT 0x0001 /* Initialization events */ 1065#define BEISCSI_LOG_MBOX 0x0002 /* Mailbox Events */ 1066#define BEISCSI_LOG_MISC 0x0004 /* Miscllaneous Events */ 1067#define BEISCSI_LOG_EH 0x0008 /* Error Handler */ 1068#define BEISCSI_LOG_IO 0x0010 /* IO Code Path */ 1069#define BEISCSI_LOG_CONFIG 0x0020 /* CONFIG Code Path */ 1070#define BEISCSI_LOG_ISCSI 0x0040 /* SCSI/iSCSI Protocol related Logs */ 1071 1072#define beiscsi_log(phba, level, mask, fmt, arg...) \ 1073do { \ 1074 uint32_t log_value = phba->attr_log_enable; \ 1075 if (((mask) & log_value) || (level[1] <= '3')) \ 1076 shost_printk(level, phba->shost, \ 1077 fmt, __LINE__, ##arg); \ 1078} while (0) 1079 1080#endif 1081