2 * Copyright (C) 2005 - 2011 Emulex
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.
10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com)
12 * Contact Information:
13 * linux-drivers@emulex.com
17 * Costa Mesa, CA 92626
20 #ifndef _BEISCSI_MAIN_
21 #define _BEISCSI_MAIN_
23 #include <linux/kernel.h>
24 #include <linux/pci.h>
25 #include <linux/if_ether.h>
27 #include <linux/ctype.h>
28 #include <linux/module.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/iscsi_proto.h>
34 #include <scsi/libiscsi.h>
35 #include <scsi/scsi_transport_iscsi.h>
38 #define DRV_NAME "be2iscsi"
39 #define BUILD_STR "4.4.58.0"
40 #define BE_NAME "Emulex OneConnect" \
41 "Open-iSCSI Driver version" BUILD_STR
42 #define DRV_DESC BE_NAME " " "Driver"
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
51 /* DEVICE ID's for BE3 */
52 #define BE_DEVICE_ID2 0x222
53 #define OC_DEVICE_ID3 0x712
55 /* DEVICE ID for SKH */
56 #define OC_SKH_ID1 0x722
58 #define BE2_IO_DEPTH 1024
59 #define BE2_MAX_SESSIONS 256
60 #define BE2_CMDS_PER_CXN 128
62 #define BE2_NOPOUT_REQ 16
64 #define BE2_DEFPDU_HDR_SZ 64
65 #define BE2_DEFPDU_DATA_SZ 8192
68 #define BEISCSI_MAX_NUM_CPU 8
69 #define BEISCSI_SGLIST_ELEMENTS 30
71 #define BEISCSI_CMD_PER_LUN 128 /* scsi_host->cmd_per_lun */
72 #define BEISCSI_MAX_SECTORS 2048 /* scsi_host->max_sectors */
74 #define BEISCSI_MAX_CMD_LEN 16 /* scsi_host->max_cmd_len */
75 #define BEISCSI_NUM_MAX_LUN 256 /* scsi_host->max_lun */
76 #define BEISCSI_NUM_DEVICES_SUPPORTED 0x01
77 #define BEISCSI_MAX_FRAGS_INIT 192
78 #define BE_NUM_MSIX_ENTRIES 1
80 #define MPU_EP_CONTROL 0
81 #define MPU_EP_SEMAPHORE 0xac
82 #define BE2_SOFT_RESET 0x5c
83 #define BE2_PCI_ONLINE0 0xb0
84 #define BE2_PCI_ONLINE1 0xb4
85 #define BE2_SET_RESET 0x80
86 #define BE2_MPU_IRAM_ONLINE 0x00000080
88 #define BE_SENSE_INFO_SIZE 258
89 #define BE_ISCSI_PDU_HEADER_SIZE 64
90 #define BE_MIN_MEM_SIZE 16384
91 #define MAX_CMD_SZ 65536
92 #define IIOC_SCSI_DATA 0x05 /* Write Operation */
94 #define INVALID_SESS_HANDLE 0xFFFFFFFF
96 #define BE_ADAPTER_UP 0x00000000
97 #define BE_ADAPTER_LINK_DOWN 0x00000001
99 * hardware needs the async PDU buffers to be posted in multiples of 8
100 * So have atleast 8 of them by default
103 #define HWI_GET_ASYNC_PDU_CTX(phwi) (phwi->phwi_ctxt->pasync_ctx)
105 /********* Memory BAR register ************/
106 #define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 0xfc
108 * Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
109 * Disable" may still globally block interrupts in addition to individual
110 * interrupt masks; a mechanism for the device driver to block all interrupts
111 * atomically without having to arbitrate for the PCI Interrupt Disable bit
114 #define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK (1 << 29) /* bit 29 */
116 /********* ISR0 Register offset **********/
117 #define CEV_ISR0_OFFSET 0xC18
118 #define CEV_ISR_SIZE 4
121 * Macros for reading/writing a protection domain or CSR registers
125 #define DB_TXULP0_OFFSET 0x40
126 #define DB_RXULP0_OFFSET 0xA0
127 /********* Event Q door bell *************/
128 #define DB_EQ_OFFSET DB_CQ_OFFSET
129 #define DB_EQ_RING_ID_MASK 0x1FF /* bits 0 - 8 */
130 /* Clear the interrupt for this eq */
131 #define DB_EQ_CLR_SHIFT (9) /* bit 9 */
133 #define DB_EQ_EVNT_SHIFT (10) /* bit 10 */
134 /* Number of event entries processed */
135 #define DB_EQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
137 #define DB_EQ_REARM_SHIFT (29) /* bit 29 */
139 /********* Compl Q door bell *************/
140 #define DB_CQ_OFFSET 0x120
141 #define DB_CQ_RING_ID_MASK 0x3FF /* bits 0 - 9 */
142 /* Number of event entries processed */
143 #define DB_CQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
145 #define DB_CQ_REARM_SHIFT (29) /* bit 29 */
147 #define GET_HWI_CONTROLLER_WS(pc) (pc->phwi_ctrlr)
148 #define HWI_GET_DEF_BUFQ_ID(pc) (((struct hwi_controller *)\
149 (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data.id)
150 #define HWI_GET_DEF_HDRQ_ID(pc) (((struct hwi_controller *)\
151 (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr.id)
153 #define PAGES_REQUIRED(x) \
154 ((x < PAGE_SIZE) ? 1 : ((x + PAGE_SIZE - 1) / PAGE_SIZE))
156 #define BEISCSI_MSI_NAME 20 /* size of msi_name string */
159 HWI_MEM_ADDN_CONTEXT,
164 HWI_MEM_ASYNC_HEADER_BUF, /* 5 */
165 HWI_MEM_ASYNC_DATA_BUF,
166 HWI_MEM_ASYNC_HEADER_RING,
167 HWI_MEM_ASYNC_DATA_RING,
168 HWI_MEM_ASYNC_HEADER_HANDLE,
169 HWI_MEM_ASYNC_DATA_HANDLE, /* 10 */
170 HWI_MEM_ASYNC_PDU_CONTEXT,
171 ISCSI_MEM_GLOBAL_HEADER,
175 struct be_bus_address32 {
176 unsigned int address_lo;
177 unsigned int address_hi;
180 struct be_bus_address64 {
181 unsigned long long address;
184 struct be_bus_address {
186 struct be_bus_address32 a32;
187 struct be_bus_address64 a64;
192 struct be_bus_address bus_address; /* Bus address of location */
193 void *virtual_address; /* virtual address to the location */
194 unsigned int size; /* Size required by memory block */
197 struct be_mem_descriptor {
198 unsigned int index; /* Index of this memory parameter */
199 unsigned int category; /* type indicates cached/non-cached */
200 unsigned int num_elements; /* number of elements in this
203 unsigned int alignment_mask; /* Alignment mask for this block */
204 unsigned int size_in_bytes; /* Size required by memory block */
205 struct mem_array *mem_array;
209 unsigned int sgl_index;
212 struct iscsi_task *task;
213 struct iscsi_sge *pfrag;
216 struct hba_parameters {
217 unsigned int ios_per_ctrl;
218 unsigned int cxns_per_ctrl;
219 unsigned int asyncpdus_per_ctrl;
220 unsigned int icds_per_ctrl;
221 unsigned int num_sge_per_io;
222 unsigned int defpdu_hdr_sz;
223 unsigned int defpdu_data_sz;
224 unsigned int num_cq_entries;
225 unsigned int num_eq_entries;
226 unsigned int wrbs_per_cxn;
227 unsigned int crashmode;
228 unsigned int hba_num;
230 unsigned int mgmt_ws_sz;
231 unsigned int hwi_ws_sz;
236 unsigned int dbg_flags;
237 unsigned int num_cxn;
239 unsigned int eq_timer;
241 * These are calculated from other params. They're here
244 unsigned int num_mcc_pages;
245 unsigned int num_mcc_cq_pages;
246 unsigned int num_cq_pages;
247 unsigned int num_eq_pages;
249 unsigned int num_async_pdu_buf_pages;
250 unsigned int num_async_pdu_buf_sgl_pages;
251 unsigned int num_async_pdu_buf_cq_pages;
253 unsigned int num_async_pdu_hdr_pages;
254 unsigned int num_async_pdu_hdr_sgl_pages;
255 unsigned int num_async_pdu_hdr_cq_pages;
257 unsigned int num_sge;
260 struct invalidate_command_table {
266 struct hba_parameters params;
267 struct hwi_controller *phwi_ctrlr;
268 unsigned int mem_req[SE_MEM_MAX];
269 /* PCI BAR mapped addresses */
270 u8 __iomem *csr_va; /* CSR */
271 u8 __iomem *db_va; /* Door Bell */
272 u8 __iomem *pci_va; /* PCI Config */
273 struct be_bus_address csr_pa; /* CSR */
274 struct be_bus_address db_pa; /* CSR */
275 struct be_bus_address pci_pa; /* CSR */
276 /* PCI representation of our HBA */
277 struct pci_dev *pcidev;
279 unsigned short asic_revision;
280 unsigned int num_cpus;
281 unsigned int nxt_cqid;
282 struct msix_entry msix_entries[MAX_CPUS + 1];
283 char *msi_name[MAX_CPUS + 1];
285 struct be_mem_descriptor *init_mem;
287 unsigned short io_sgl_alloc_index;
288 unsigned short io_sgl_free_index;
289 unsigned short io_sgl_hndl_avbl;
290 struct sgl_handle **io_sgl_hndl_base;
291 struct sgl_handle **sgl_hndl_array;
293 unsigned short eh_sgl_alloc_index;
294 unsigned short eh_sgl_free_index;
295 unsigned short eh_sgl_hndl_avbl;
296 struct sgl_handle **eh_sgl_hndl_base;
297 spinlock_t io_sgl_lock;
298 spinlock_t mgmt_sgl_lock;
301 unsigned short avlbl_cids;
302 unsigned short cid_alloc;
303 unsigned short cid_free;
304 struct beiscsi_conn *conn_table[BE2_MAX_SESSIONS * 2];
305 struct list_head hba_queue;
306 unsigned short *cid_array;
307 struct iscsi_endpoint **ep_array;
308 struct iscsi_boot_kset *boot_kset;
309 struct Scsi_Host *shost;
310 struct iscsi_iface *ipv4_iface;
311 struct iscsi_iface *ipv6_iface;
314 * group together since they are used most frequently
315 * for cid to cri conversion
317 unsigned int iscsi_cid_start;
318 unsigned int phys_port;
320 unsigned int isr_offset;
321 unsigned int iscsi_icd_start;
322 unsigned int iscsi_cid_count;
323 unsigned int iscsi_icd_count;
324 unsigned int pci_function;
326 unsigned short cid_alloc;
327 unsigned short cid_free;
328 unsigned short avlbl_cids;
329 unsigned short iscsi_features;
333 u8 mac_address[ETH_ALEN];
335 struct workqueue_struct *wq; /* The actuak work queue */
336 struct be_ctrl_info ctrl;
337 unsigned int generation;
338 unsigned int interface_handle;
339 struct mgmt_session_info boot_sess;
340 struct invalidate_command_table inv_tbl[128];
342 unsigned int attr_log_enable;
346 struct beiscsi_session {
347 struct pci_pool *bhs_pool;
351 * struct beiscsi_conn - iscsi connection structure
353 struct beiscsi_conn {
354 struct iscsi_conn *conn;
355 struct beiscsi_hba *phba;
357 u32 beiscsi_conn_cid;
358 struct beiscsi_endpoint *ep;
359 unsigned short login_in_progress;
360 struct wrb_handle *plogin_wrb_handle;
361 struct sgl_handle *plogin_sgl_handle;
362 struct beiscsi_session *beiscsi_sess;
363 struct iscsi_task *task;
366 /* This structure is used by the chip */
367 struct pdu_data_out {
371 * Pseudo amap definition in which each bit of the actual structure is defined
372 * as a byte: used to calculate offset/shift/mask of each field
374 struct amap_pdu_data_out {
375 u8 opcode[6]; /* opcode */
376 u8 rsvd0[2]; /* should be 0 */
378 u8 final_bit; /* F bit */
380 u8 ahs_length[8]; /* no AHS */
382 u8 data_len_lo[16]; /* DataSegmentLength */
384 u8 itt[32]; /* ITT; initiator task tag */
385 u8 ttt[32]; /* TTT; valid for R2T or 0xffffffff */
390 u8 buffer_offset[32];
395 struct iscsi_scsi_req iscsi_hdr;
396 unsigned char pad1[16];
397 struct pdu_data_out iscsi_data_pdu;
398 unsigned char pad2[BE_SENSE_INFO_SIZE -
399 sizeof(struct pdu_data_out)];
402 struct beiscsi_io_task {
403 struct wrb_handle *pwrb_handle;
404 struct sgl_handle *psgl_handle;
405 struct beiscsi_conn *conn;
406 struct scsi_cmnd *scsi_cmnd;
410 unsigned short header_len;
412 struct be_cmd_bhs *cmd_bhs;
413 struct be_bus_address bhs_pa;
414 unsigned short bhs_len;
415 dma_addr_t mtask_addr;
416 uint32_t mtask_data_count;
419 struct be_nonio_bhs {
420 struct iscsi_hdr iscsi_hdr;
421 unsigned char pad1[16];
422 struct pdu_data_out iscsi_data_pdu;
423 unsigned char pad2[BE_SENSE_INFO_SIZE -
424 sizeof(struct pdu_data_out)];
427 struct be_status_bhs {
428 struct iscsi_scsi_req iscsi_hdr;
429 unsigned char pad1[16];
431 * The plus 2 below is to hold the sense info length that gets
434 unsigned char sense_info[BE_SENSE_INFO_SIZE];
442 * Pseudo amap definition in which each bit of the actual structure is defined
443 * as a byte: used to calculate offset/shift/mask of each field
445 struct amap_iscsi_sge {
448 u8 sge_offset[22]; /* DWORD 2 */
449 u8 rsvd0[9]; /* DWORD 2 */
450 u8 last_sge; /* DWORD 2 */
451 u8 len[17]; /* DWORD 3 */
452 u8 rsvd1[15]; /* DWORD 3 */
455 struct beiscsi_offload_params {
459 #define OFFLD_PARAMS_ERL 0x00000003
460 #define OFFLD_PARAMS_DDE 0x00000004
461 #define OFFLD_PARAMS_HDE 0x00000008
462 #define OFFLD_PARAMS_IR2T 0x00000010
463 #define OFFLD_PARAMS_IMD 0x00000020
466 * Pseudo amap definition in which each bit of the actual structure is defined
467 * as a byte: used to calculate offset/shift/mask of each field
469 struct amap_beiscsi_offload_params {
470 u8 max_burst_length[32];
471 u8 max_send_data_segment_length[32];
472 u8 first_burst_length[32];
482 /* void hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
483 struct beiscsi_hba *phba, struct sol_cqe *psol);*/
485 struct async_pdu_handle {
486 struct list_head link;
487 struct be_bus_address pa;
489 unsigned int consumed;
491 unsigned char is_header;
493 unsigned long buffer_len;
496 struct hwi_async_entry {
498 unsigned char hdr_received;
499 unsigned char hdr_len;
500 unsigned short bytes_received;
501 unsigned int bytes_needed;
502 struct list_head list;
505 struct list_head header_busy_list;
506 struct list_head data_busy_list;
509 struct hwi_async_pdu_context {
511 struct be_bus_address pa_base;
514 struct async_pdu_handle *handle_base;
516 unsigned int host_write_ptr;
517 unsigned int ep_read_ptr;
518 unsigned int writables;
520 unsigned int free_entries;
521 unsigned int busy_entries;
523 struct list_head free_list;
527 struct be_bus_address pa_base;
530 struct async_pdu_handle *handle_base;
532 unsigned int host_write_ptr;
533 unsigned int ep_read_ptr;
534 unsigned int writables;
536 unsigned int free_entries;
537 unsigned int busy_entries;
538 struct list_head free_list;
541 unsigned int buffer_size;
542 unsigned int num_entries;
545 * This is a varying size list! Do not add anything
548 struct hwi_async_entry async_entry[BE2_MAX_SESSIONS * 2];
551 #define PDUCQE_CODE_MASK 0x0000003F
552 #define PDUCQE_DPL_MASK 0xFFFF0000
553 #define PDUCQE_INDEX_MASK 0x0000FFFF
555 struct i_t_dpdu_cqe {
560 * Pseudo amap definition in which each bit of the actual structure is defined
561 * as a byte: used to calculate offset/shift/mask of each field
563 struct amap_i_t_dpdu_cqe {
576 #define CQE_VALID_MASK 0x80000000
577 #define CQE_CODE_MASK 0x0000003F
578 #define CQE_CID_MASK 0x0000FFC0
580 #define EQE_VALID_MASK 0x00000001
581 #define EQE_MAJORCODE_MASK 0x0000000E
582 #define EQE_RESID_MASK 0xFFFF0000
589 * Pseudo amap definition in which each bit of the actual structure is defined
590 * as a byte: used to calculate offset/shift/mask of each field
592 struct amap_eq_entry {
593 u8 valid; /* DWORD 0 */
594 u8 major_code[3]; /* DWORD 0 */
595 u8 minor_code[12]; /* DWORD 0 */
596 u8 resource_id[16]; /* DWORD 0 */
605 * Pseudo amap definition in which each bit of the actual structure is defined
606 * as a byte: used to calculate offset/shift/mask of each field
617 void beiscsi_process_eq(struct beiscsi_hba *phba);
623 #define WRB_TYPE_MASK 0xF0000000
626 * Pseudo amap definition in which each bit of the actual structure is defined
627 * as a byte: used to calculate offset/shift/mask of each field
629 struct amap_iscsi_wrb {
630 u8 lun[14]; /* DWORD 0 */
632 u8 invld; /* DWORD 0 */
633 u8 wrb_idx[8]; /* DWORD 0 */
634 u8 dsp; /* DWORD 0 */
635 u8 dmsg; /* DWORD 0 */
636 u8 undr_run; /* DWORD 0 */
637 u8 over_run; /* DWORD 0 */
638 u8 type[4]; /* DWORD 0 */
639 u8 ptr2nextwrb[8]; /* DWORD 1 */
640 u8 r2t_exp_dtl[24]; /* DWORD 1 */
641 u8 sgl_icd_idx[12]; /* DWORD 2 */
642 u8 rsvd0[20]; /* DWORD 2 */
643 u8 exp_data_sn[32]; /* DWORD 3 */
644 u8 iscsi_bhs_addr_hi[32]; /* DWORD 4 */
645 u8 iscsi_bhs_addr_lo[32]; /* DWORD 5 */
646 u8 cmdsn_itt[32]; /* DWORD 6 */
647 u8 dif_ref_tag[32]; /* DWORD 7 */
648 u8 sge0_addr_hi[32]; /* DWORD 8 */
649 u8 sge0_addr_lo[32]; /* DWORD 9 */
650 u8 sge0_offset[22]; /* DWORD 10 */
651 u8 pbs; /* DWORD 10 */
652 u8 dif_mode[2]; /* DWORD 10 */
653 u8 rsvd1[6]; /* DWORD 10 */
654 u8 sge0_last; /* DWORD 10 */
655 u8 sge0_len[17]; /* DWORD 11 */
656 u8 dif_meta_tag[14]; /* DWORD 11 */
657 u8 sge0_in_ddr; /* DWORD 11 */
658 u8 sge1_addr_hi[32]; /* DWORD 12 */
659 u8 sge1_addr_lo[32]; /* DWORD 13 */
660 u8 sge1_r2t_offset[22]; /* DWORD 14 */
661 u8 rsvd2[9]; /* DWORD 14 */
662 u8 sge1_last; /* DWORD 14 */
663 u8 sge1_len[17]; /* DWORD 15 */
664 u8 ref_sgl_icd_idx[12]; /* DWORD 15 */
665 u8 rsvd3[2]; /* DWORD 15 */
666 u8 sge1_in_ddr; /* DWORD 15 */
670 struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid);
672 free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle);
674 void beiscsi_process_all_cqs(struct work_struct *work);
681 * Pseudo amap definition in which each bit of the actual structure is defined
682 * as a byte: used to calculate offset/shift/mask of each field
684 struct amap_pdu_nop_out {
685 u8 opcode[6]; /* opcode 0x00 */
686 u8 i_bit; /* I Bit */
687 u8 x_bit; /* reserved; should be 0 */
688 u8 fp_bit_filler1[7];
689 u8 f_bit; /* always 1 */
691 u8 ahs_length[8]; /* no AHS */
693 u8 data_len_lo[16]; /* DataSegmentLength */
695 u8 itt[32]; /* initiator id for ping or 0xffffffff */
696 u8 ttt[32]; /* target id for ping or 0xffffffff */
702 #define PDUBASE_OPCODE_MASK 0x0000003F
703 #define PDUBASE_DATALENHI_MASK 0x0000FF00
704 #define PDUBASE_DATALENLO_MASK 0xFFFF0000
711 * Pseudo amap definition in which each bit of the actual structure is defined
712 * as a byte: used to calculate offset/shift/mask of each field
714 struct amap_pdu_base {
716 u8 i_bit; /* immediate bit */
717 u8 x_bit; /* reserved, always 0 */
718 u8 reserved1[24]; /* opcode-specific fields */
719 u8 ahs_length[8]; /* length units is 4 byte words */
721 u8 data_len_lo[16]; /* DatasegmentLength */
722 u8 lun[64]; /* lun or opcode-specific fields */
723 u8 itt[32]; /* initiator task tag */
727 struct iscsi_target_context_update_wrb {
732 * Pseudo amap definition in which each bit of the actual structure is defined
733 * as a byte: used to calculate offset/shift/mask of each field
735 struct amap_iscsi_target_context_update_wrb {
736 u8 lun[14]; /* DWORD 0 */
738 u8 invld; /* DWORD 0 */
739 u8 wrb_idx[8]; /* DWORD 0 */
740 u8 dsp; /* DWORD 0 */
741 u8 dmsg; /* DWORD 0 */
742 u8 undr_run; /* DWORD 0 */
743 u8 over_run; /* DWORD 0 */
744 u8 type[4]; /* DWORD 0 */
745 u8 ptr2nextwrb[8]; /* DWORD 1 */
746 u8 max_burst_length[19]; /* DWORD 1 */
747 u8 rsvd0[5]; /* DWORD 1 */
748 u8 rsvd1[15]; /* DWORD 2 */
749 u8 max_send_data_segment_length[17]; /* DWORD 2 */
750 u8 first_burst_length[14]; /* DWORD 3 */
751 u8 rsvd2[2]; /* DWORD 3 */
752 u8 tx_wrbindex_drv_msg[8]; /* DWORD 3 */
753 u8 rsvd3[5]; /* DWORD 3 */
754 u8 session_state[3]; /* DWORD 3 */
755 u8 rsvd4[16]; /* DWORD 4 */
756 u8 tx_jumbo; /* DWORD 4 */
757 u8 hde; /* DWORD 4 */
758 u8 dde; /* DWORD 4 */
759 u8 erl[2]; /* DWORD 4 */
760 u8 domain_id[5]; /* DWORD 4 */
761 u8 mode; /* DWORD 4 */
762 u8 imd; /* DWORD 4 */
763 u8 ir2t; /* DWORD 4 */
764 u8 notpredblq[2]; /* DWORD 4 */
765 u8 compltonack; /* DWORD 4 */
766 u8 stat_sn[32]; /* DWORD 5 */
767 u8 pad_buffer_addr_hi[32]; /* DWORD 6 */
768 u8 pad_buffer_addr_lo[32]; /* DWORD 7 */
769 u8 pad_addr_hi[32]; /* DWORD 8 */
770 u8 pad_addr_lo[32]; /* DWORD 9 */
771 u8 rsvd5[32]; /* DWORD 10 */
772 u8 rsvd6[32]; /* DWORD 11 */
773 u8 rsvd7[32]; /* DWORD 12 */
774 u8 rsvd8[32]; /* DWORD 13 */
775 u8 rsvd9[32]; /* DWORD 14 */
776 u8 rsvd10[32]; /* DWORD 15 */
781 u32 pages; /* queue size in pages */
782 u32 id; /* queue id assigned by beklib */
783 u32 num; /* number of elements in queue */
784 u32 cidx; /* consumer index */
785 u32 pidx; /* producer index -- not used by most rings */
786 u32 item_size; /* size in bytes of one object */
788 void *va; /* The virtual address of the ring. This
789 * should be last to allow 32 & 64 bit debugger
790 * extensions to work.
794 struct hwi_wrb_context {
795 struct list_head wrb_handle_list;
796 struct list_head wrb_handle_drvr_list;
797 struct wrb_handle **pwrb_handle_base;
798 struct wrb_handle **pwrb_handle_basestd;
799 struct iscsi_wrb *plast_wrb;
800 unsigned short alloc_index;
801 unsigned short free_index;
802 unsigned short wrb_handles_available;
806 struct hwi_controller {
807 struct list_head io_sgl_list;
808 struct list_head eh_sgl_list;
809 struct sgl_handle *psgl_handle_base;
810 unsigned int wrb_mem_index;
812 struct hwi_wrb_context wrb_context[BE2_MAX_SESSIONS * 2];
813 struct mcc_wrb *pmcc_wrb_base;
814 struct be_ring default_pdu_hdr;
815 struct be_ring default_pdu_data;
816 struct hwi_context_memory *phwi_ctxt;
826 HWH_TYPE_INVALID = 0xFFFFFFFF
830 enum hwh_type_enum type;
831 unsigned short wrb_index;
832 unsigned short nxt_wrb_index;
834 struct iscsi_task *pio_handle;
835 struct iscsi_wrb *pwrb;
838 struct hwi_context_memory {
839 /* Adaptive interrupt coalescing (AIC) info */
840 u16 min_eqd; /* in usecs */
841 u16 max_eqd; /* in usecs */
842 u16 cur_eqd; /* in usecs */
843 struct be_eq_obj be_eq[MAX_CPUS];
844 struct be_queue_info be_cq[MAX_CPUS];
846 struct be_queue_info be_def_hdrq;
847 struct be_queue_info be_def_dataq;
849 struct be_queue_info be_wrbq[BE2_MAX_SESSIONS];
850 struct be_mcc_wrb_context *pbe_mcc_context;
852 struct hwi_async_pdu_context *pasync_ctx;
855 /* Logging related definitions */
856 #define BEISCSI_LOG_INIT 0x0001 /* Initialization events */
857 #define BEISCSI_LOG_MBOX 0x0002 /* Mailbox Events */
858 #define BEISCSI_LOG_MISC 0x0004 /* Miscllaneous Events */
859 #define BEISCSI_LOG_EH 0x0008 /* Error Handler */
860 #define BEISCSI_LOG_IO 0x0010 /* IO Code Path */
861 #define BEISCSI_LOG_CONFIG 0x0020 /* CONFIG Code Path */
863 #define beiscsi_log(phba, level, mask, fmt, arg...) \
865 uint32_t log_value = phba->attr_log_enable; \
866 if (((mask) & log_value) || (level[1] <= '3')) \
867 shost_printk(level, phba->shost, \
868 fmt, __LINE__, ##arg); \