[SCSI] lpfc 8.3.4: Various SLI4 fixes
[linux-2.6/kvm.git] / drivers / scsi / lpfc / lpfc_sli4.h
blobb6f3e04f384825912cd9a66816893d539b7b7535
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
19 *******************************************************************/
21 #define LPFC_ACTIVE_MBOX_WAIT_CNT 100
22 #define LPFC_RELEASE_NOTIFICATION_INTERVAL 32
23 #define LPFC_GET_QE_REL_INT 32
24 #define LPFC_RPI_LOW_WATER_MARK 10
25 /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
26 #define LPFC_NEMBED_MBOX_SGL_CNT 254
28 /* Multi-queue arrangement for fast-path FCP work queues */
29 #define LPFC_FN_EQN_MAX 8
30 #define LPFC_SP_EQN_DEF 1
31 #define LPFC_FP_EQN_DEF 1
32 #define LPFC_FP_EQN_MIN 1
33 #define LPFC_FP_EQN_MAX (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)
35 #define LPFC_FN_WQN_MAX 32
36 #define LPFC_SP_WQN_DEF 1
37 #define LPFC_FP_WQN_DEF 4
38 #define LPFC_FP_WQN_MIN 1
39 #define LPFC_FP_WQN_MAX (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)
42 * Provide the default FCF Record attributes used by the driver
43 * when nonFIP mode is configured and there is no other default
44 * FCF Record attributes.
46 #define LPFC_FCOE_FCF_DEF_INDEX 0
47 #define LPFC_FCOE_FCF_GET_FIRST 0xFFFF
48 #define LPFC_FCOE_FCF_NEXT_NONE 0xFFFF
50 /* First 3 bytes of default FCF MAC is specified by FC_MAP */
51 #define LPFC_FCOE_FCF_MAC3 0xFF
52 #define LPFC_FCOE_FCF_MAC4 0xFF
53 #define LPFC_FCOE_FCF_MAC5 0xFE
54 #define LPFC_FCOE_FCF_MAP0 0x0E
55 #define LPFC_FCOE_FCF_MAP1 0xFC
56 #define LPFC_FCOE_FCF_MAP2 0x00
57 #define LPFC_FCOE_MAX_RCV_SIZE 0x5AC
58 #define LPFC_FCOE_FKA_ADV_PER 0
59 #define LPFC_FCOE_FIP_PRIORITY 0x80
61 enum lpfc_sli4_queue_type {
62 LPFC_EQ,
63 LPFC_GCQ,
64 LPFC_MCQ,
65 LPFC_WCQ,
66 LPFC_RCQ,
67 LPFC_MQ,
68 LPFC_WQ,
69 LPFC_HRQ,
70 LPFC_DRQ
73 /* The queue sub-type defines the functional purpose of the queue */
74 enum lpfc_sli4_queue_subtype {
75 LPFC_NONE,
76 LPFC_MBOX,
77 LPFC_FCP,
78 LPFC_ELS,
79 LPFC_USOL
82 union sli4_qe {
83 void *address;
84 struct lpfc_eqe *eqe;
85 struct lpfc_cqe *cqe;
86 struct lpfc_mcqe *mcqe;
87 struct lpfc_wcqe_complete *wcqe_complete;
88 struct lpfc_wcqe_release *wcqe_release;
89 struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
90 struct lpfc_rcqe_complete *rcqe_complete;
91 struct lpfc_mqe *mqe;
92 union lpfc_wqe *wqe;
93 struct lpfc_rqe *rqe;
96 struct lpfc_queue {
97 struct list_head list;
98 enum lpfc_sli4_queue_type type;
99 enum lpfc_sli4_queue_subtype subtype;
100 struct lpfc_hba *phba;
101 struct list_head child_list;
102 uint32_t entry_count; /* Number of entries to support on the queue */
103 uint32_t entry_size; /* Size of each queue entry. */
104 uint32_t queue_id; /* Queue ID assigned by the hardware */
105 struct list_head page_list;
106 uint32_t page_count; /* Number of pages allocated for this queue */
108 uint32_t host_index; /* The host's index for putting or getting */
109 uint32_t hba_index; /* The last known hba index for get or put */
110 union sli4_qe qe[1]; /* array to index entries (must be last) */
113 struct lpfc_cq_event {
114 struct list_head list;
115 union {
116 struct lpfc_mcqe mcqe_cmpl;
117 struct lpfc_acqe_link acqe_link;
118 struct lpfc_acqe_fcoe acqe_fcoe;
119 struct lpfc_acqe_dcbx acqe_dcbx;
120 struct lpfc_rcqe rcqe_cmpl;
121 struct sli4_wcqe_xri_aborted wcqe_axri;
122 } cqe;
125 struct lpfc_sli4_link {
126 uint8_t speed;
127 uint8_t duplex;
128 uint8_t status;
129 uint8_t physical;
130 uint8_t fault;
133 struct lpfc_fcf {
134 uint8_t fabric_name[8];
135 uint8_t switch_name[8];
136 uint8_t mac_addr[6];
137 uint16_t fcf_indx;
138 uint16_t fcfi;
139 uint32_t fcf_flag;
140 #define FCF_AVAILABLE 0x01 /* FCF available for discovery */
141 #define FCF_REGISTERED 0x02 /* FCF registered with FW */
142 #define FCF_DISCOVERED 0x04 /* FCF discovery started */
143 #define FCF_BOOT_ENABLE 0x08 /* Boot bios use this FCF */
144 #define FCF_IN_USE 0x10 /* Atleast one discovery completed */
145 #define FCF_VALID_VLAN 0x20 /* Use the vlan id specified */
146 uint32_t priority;
147 uint32_t addr_mode;
148 uint16_t vlan_id;
151 #define LPFC_REGION23_SIGNATURE "RG23"
152 #define LPFC_REGION23_VERSION 1
153 #define LPFC_REGION23_LAST_REC 0xff
154 struct lpfc_fip_param_hdr {
155 uint8_t type;
156 #define FCOE_PARAM_TYPE 0xA0
157 uint8_t length;
158 #define FCOE_PARAM_LENGTH 2
159 uint8_t parm_version;
160 #define FIPP_VERSION 0x01
161 uint8_t parm_flags;
162 #define lpfc_fip_param_hdr_fipp_mode_SHIFT 6
163 #define lpfc_fip_param_hdr_fipp_mode_MASK 0x3
164 #define lpfc_fip_param_hdr_fipp_mode_WORD parm_flags
165 #define FIPP_MODE_ON 0x2
166 #define FIPP_MODE_OFF 0x0
167 #define FIPP_VLAN_VALID 0x1
170 struct lpfc_fcoe_params {
171 uint8_t fc_map[3];
172 uint8_t reserved1;
173 uint16_t vlan_tag;
174 uint8_t reserved[2];
177 struct lpfc_fcf_conn_hdr {
178 uint8_t type;
179 #define FCOE_CONN_TBL_TYPE 0xA1
180 uint8_t length; /* words */
181 uint8_t reserved[2];
184 struct lpfc_fcf_conn_rec {
185 uint16_t flags;
186 #define FCFCNCT_VALID 0x0001
187 #define FCFCNCT_BOOT 0x0002
188 #define FCFCNCT_PRIMARY 0x0004 /* if not set, Secondary */
189 #define FCFCNCT_FBNM_VALID 0x0008
190 #define FCFCNCT_SWNM_VALID 0x0010
191 #define FCFCNCT_VLAN_VALID 0x0020
192 #define FCFCNCT_AM_VALID 0x0040
193 #define FCFCNCT_AM_PREFERRED 0x0080 /* if not set, AM Required */
194 #define FCFCNCT_AM_SPMA 0x0100 /* if not set, FPMA */
196 uint16_t vlan_tag;
197 uint8_t fabric_name[8];
198 uint8_t switch_name[8];
201 struct lpfc_fcf_conn_entry {
202 struct list_head list;
203 struct lpfc_fcf_conn_rec conn_rec;
207 * Define the host's bootstrap mailbox. This structure contains
208 * the member attributes needed to create, use, and destroy the
209 * bootstrap mailbox region.
211 * The macro definitions for the bmbx data structure are defined
212 * in lpfc_hw4.h with the register definition.
214 struct lpfc_bmbx {
215 struct lpfc_dmabuf *dmabuf;
216 struct dma_address dma_address;
217 void *avirt;
218 dma_addr_t aphys;
219 uint32_t bmbx_size;
222 #define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
224 #define LPFC_EQE_SIZE_4B 4
225 #define LPFC_EQE_SIZE_16B 16
226 #define LPFC_CQE_SIZE 16
227 #define LPFC_WQE_SIZE 64
228 #define LPFC_MQE_SIZE 256
229 #define LPFC_RQE_SIZE 8
231 #define LPFC_EQE_DEF_COUNT 1024
232 #define LPFC_CQE_DEF_COUNT 256
233 #define LPFC_WQE_DEF_COUNT 256
234 #define LPFC_MQE_DEF_COUNT 16
235 #define LPFC_RQE_DEF_COUNT 512
237 #define LPFC_QUEUE_NOARM false
238 #define LPFC_QUEUE_REARM true
242 * SLI4 CT field defines
244 #define SLI4_CT_RPI 0
245 #define SLI4_CT_VPI 1
246 #define SLI4_CT_VFI 2
247 #define SLI4_CT_FCFI 3
249 #define LPFC_SLI4_MAX_SEGMENT_SIZE 0x10000
252 * SLI4 specific data structures
254 struct lpfc_max_cfg_param {
255 uint16_t max_xri;
256 uint16_t xri_base;
257 uint16_t xri_used;
258 uint16_t max_rpi;
259 uint16_t rpi_base;
260 uint16_t rpi_used;
261 uint16_t max_vpi;
262 uint16_t vpi_base;
263 uint16_t vpi_used;
264 uint16_t max_vfi;
265 uint16_t vfi_base;
266 uint16_t vfi_used;
267 uint16_t max_fcfi;
268 uint16_t fcfi_base;
269 uint16_t fcfi_used;
270 uint16_t max_eq;
271 uint16_t max_rq;
272 uint16_t max_cq;
273 uint16_t max_wq;
276 struct lpfc_hba;
277 /* SLI4 HBA multi-fcp queue handler struct */
278 struct lpfc_fcp_eq_hdl {
279 uint32_t idx;
280 struct lpfc_hba *phba;
283 /* SLI4 HBA data structure entries */
284 struct lpfc_sli4_hba {
285 void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
286 PCI BAR0, config space registers */
287 void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
288 PCI BAR1, control registers */
289 void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
290 PCI BAR2, doorbell registers */
291 /* BAR0 PCI config space register memory map */
292 void __iomem *UERRLOregaddr; /* Address to UERR_STATUS_LO register */
293 void __iomem *UERRHIregaddr; /* Address to UERR_STATUS_HI register */
294 void __iomem *ONLINE0regaddr; /* Address to components of internal UE */
295 void __iomem *ONLINE1regaddr; /* Address to components of internal UE */
296 #define LPFC_ONLINE_NERR 0xFFFFFFFF
297 void __iomem *SCRATCHPADregaddr; /* Address to scratchpad register */
298 /* BAR1 FCoE function CSR register memory map */
299 void __iomem *STAregaddr; /* Address to HST_STATE register */
300 void __iomem *ISRregaddr; /* Address to HST_ISR register */
301 void __iomem *IMRregaddr; /* Address to HST_IMR register */
302 void __iomem *ISCRregaddr; /* Address to HST_ISCR register */
303 /* BAR2 VF-0 doorbell register memory map */
304 void __iomem *RQDBregaddr; /* Address to RQ_DOORBELL register */
305 void __iomem *WQDBregaddr; /* Address to WQ_DOORBELL register */
306 void __iomem *EQCQDBregaddr; /* Address to EQCQ_DOORBELL register */
307 void __iomem *MQDBregaddr; /* Address to MQ_DOORBELL register */
308 void __iomem *BMBXregaddr; /* Address to BootStrap MBX register */
310 struct msix_entry *msix_entries;
311 uint32_t cfg_eqn;
312 struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
313 /* Pointers to the constructed SLI4 queues */
314 struct lpfc_queue **fp_eq; /* Fast-path event queue */
315 struct lpfc_queue *sp_eq; /* Slow-path event queue */
316 struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
317 struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
318 struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
319 struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
320 struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
321 struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
322 struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
323 struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
324 struct lpfc_queue *rxq_cq; /* Slow-path unsolicited complete queue */
326 /* Setup information for various queue parameters */
327 int eq_esize;
328 int eq_ecount;
329 int cq_esize;
330 int cq_ecount;
331 int wq_esize;
332 int wq_ecount;
333 int mq_esize;
334 int mq_ecount;
335 int rq_esize;
336 int rq_ecount;
337 #define LPFC_SP_EQ_MAX_INTR_SEC 10000
338 #define LPFC_FP_EQ_MAX_INTR_SEC 10000
340 uint32_t intr_enable;
341 struct lpfc_bmbx bmbx;
342 struct lpfc_max_cfg_param max_cfg_param;
343 uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
344 uint16_t next_rpi;
345 uint16_t scsi_xri_max;
346 uint16_t scsi_xri_cnt;
347 struct list_head lpfc_free_sgl_list;
348 struct list_head lpfc_sgl_list;
349 struct lpfc_sglq **lpfc_els_sgl_array;
350 struct list_head lpfc_abts_els_sgl_list;
351 struct lpfc_scsi_buf **lpfc_scsi_psb_array;
352 struct list_head lpfc_abts_scsi_buf_list;
353 uint32_t total_sglq_bufs;
354 struct lpfc_sglq **lpfc_sglq_active_list;
355 struct list_head lpfc_rpi_hdr_list;
356 unsigned long *rpi_bmask;
357 uint16_t rpi_count;
358 struct lpfc_sli4_flags sli4_flags;
359 struct list_head sp_rspiocb_work_queue;
360 struct list_head sp_cqe_event_pool;
361 struct list_head sp_asynce_work_queue;
362 struct list_head sp_fcp_xri_aborted_work_queue;
363 struct list_head sp_els_xri_aborted_work_queue;
364 struct list_head sp_unsol_work_queue;
365 struct lpfc_sli4_link link_state;
366 spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
367 spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
370 enum lpfc_sge_type {
371 GEN_BUFF_TYPE,
372 SCSI_BUFF_TYPE
375 struct lpfc_sglq {
376 /* lpfc_sglqs are used in double linked lists */
377 struct list_head list;
378 struct list_head clist;
379 enum lpfc_sge_type buff_type; /* is this a scsi sgl */
380 uint16_t iotag; /* pre-assigned IO tag */
381 uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
382 struct sli4_sge *sgl; /* pre-assigned SGL */
383 void *virt; /* virtual address. */
384 dma_addr_t phys; /* physical address */
387 struct lpfc_rpi_hdr {
388 struct list_head list;
389 uint32_t len;
390 struct lpfc_dmabuf *dmabuf;
391 uint32_t page_count;
392 uint32_t start_rpi;
396 * SLI4 specific function prototypes
398 int lpfc_pci_function_reset(struct lpfc_hba *);
399 int lpfc_sli4_hba_setup(struct lpfc_hba *);
400 int lpfc_sli4_hba_down(struct lpfc_hba *);
401 int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
402 uint8_t, uint32_t, bool);
403 void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
404 void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
405 void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
406 struct lpfc_mbx_sge *);
408 void lpfc_sli4_hba_reset(struct lpfc_hba *);
409 struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
410 uint32_t);
411 void lpfc_sli4_queue_free(struct lpfc_queue *);
412 uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint16_t);
413 uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
414 struct lpfc_queue *, uint32_t, uint32_t);
415 uint32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
416 struct lpfc_queue *, uint32_t);
417 uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
418 struct lpfc_queue *, uint32_t);
419 uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
420 struct lpfc_queue *, struct lpfc_queue *, uint32_t);
421 uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
422 uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
423 uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
424 uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
425 uint32_t lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
426 struct lpfc_queue *);
427 int lpfc_sli4_queue_setup(struct lpfc_hba *);
428 void lpfc_sli4_queue_unset(struct lpfc_hba *);
429 int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
430 int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
431 int lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *);
432 uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
433 int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
434 int lpfc_sli4_post_sgl_list(struct lpfc_hba *phba);
435 int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
436 struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
437 struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
438 void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
439 void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
440 int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
441 int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
442 int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
443 struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
444 void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
445 int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
446 void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
447 void lpfc_sli4_remove_rpis(struct lpfc_hba *);
448 void lpfc_sli4_async_event_proc(struct lpfc_hba *);
449 int lpfc_sli4_resume_rpi(struct lpfc_nodelist *);
450 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
451 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
452 void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
453 struct sli4_wcqe_xri_aborted *);
454 void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
455 struct sli4_wcqe_xri_aborted *);
456 int lpfc_sli4_brdreset(struct lpfc_hba *);
457 int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
458 void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
459 int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
460 int lpfc_sli4_init_vpi(struct lpfc_hba *, uint16_t);
461 uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
462 uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
463 void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
464 int lpfc_sli4_read_fcf_record(struct lpfc_hba *, uint16_t);
465 void lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *, LPFC_MBOXQ_t *);
466 int lpfc_sli4_post_status_check(struct lpfc_hba *);
467 uint8_t lpfc_sli4_mbox_opcode_get(struct lpfc_hba *, struct lpfcMboxq *);