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hpsa: factor out hpsa_ciss_submit function
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1/*
2 * Disk Array driver for HP Smart Array SAS controllers
51c35139 3 * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
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4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
12 * NON INFRINGEMENT. See the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 *
18 * Questions/Comments/Bugfixes to iss_storagedev@hp.com
19 *
20 */
21#ifndef HPSA_H
22#define HPSA_H
23
24#include <scsi/scsicam.h>
25
26#define IO_OK 0
27#define IO_ERROR 1
28
29struct ctlr_info;
30
31struct access_method {
32 void (*submit_command)(struct ctlr_info *h,
33 struct CommandList *c);
34 void (*set_intr_mask)(struct ctlr_info *h, unsigned long val);
900c5440 35 bool (*intr_pending)(struct ctlr_info *h);
254f796b 36 unsigned long (*command_completed)(struct ctlr_info *h, u8 q);
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37};
38
39struct hpsa_scsi_dev_t {
40 int devtype;
41 int bus, target, lun; /* as presented to the OS */
42 unsigned char scsi3addr[8]; /* as presented to the HW */
43#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
44 unsigned char device_id[16]; /* from inquiry pg. 0x83 */
45 unsigned char vendor[8]; /* bytes 8-15 of inquiry data */
46 unsigned char model[16]; /* bytes 16-31 of inquiry data */
edd16368 47 unsigned char raid_level; /* from inquiry page 0xC1 */
9846590e 48 unsigned char volume_offline; /* discovered via TUR or VPD */
e1f7de0c 49 u32 ioaccel_handle;
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50 int offload_config; /* I/O accel RAID offload configured */
51 int offload_enabled; /* I/O accel RAID offload enabled */
52 int offload_to_mirror; /* Send next I/O accelerator RAID
53 * offload request to mirror drive
54 */
55 struct raid_map_data raid_map; /* I/O accelerator RAID map */
56
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57};
58
072b0518 59struct reply_queue_buffer {
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60 u64 *head;
61 size_t size;
62 u8 wraparound;
63 u32 current_entry;
072b0518 64 dma_addr_t busaddr;
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65};
66
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67#pragma pack(1)
68struct bmic_controller_parameters {
69 u8 led_flags;
70 u8 enable_command_list_verification;
71 u8 backed_out_write_drives;
72 u16 stripes_for_parity;
73 u8 parity_distribution_mode_flags;
74 u16 max_driver_requests;
75 u16 elevator_trend_count;
76 u8 disable_elevator;
77 u8 force_scan_complete;
78 u8 scsi_transfer_mode;
79 u8 force_narrow;
80 u8 rebuild_priority;
81 u8 expand_priority;
82 u8 host_sdb_asic_fix;
83 u8 pdpi_burst_from_host_disabled;
84 char software_name[64];
85 char hardware_name[32];
86 u8 bridge_revision;
87 u8 snapshot_priority;
88 u32 os_specific;
89 u8 post_prompt_timeout;
90 u8 automatic_drive_slamming;
91 u8 reserved1;
92 u8 nvram_flags;
6e8e8088 93#define HBA_MODE_ENABLED_FLAG (1 << 3)
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94 u8 cache_nvram_flags;
95 u8 drive_config_flags;
96 u16 reserved2;
97 u8 temp_warning_level;
98 u8 temp_shutdown_level;
99 u8 temp_condition_reset;
100 u8 max_coalesce_commands;
101 u32 max_coalesce_delay;
102 u8 orca_password[4];
103 u8 access_id[16];
104 u8 reserved[356];
105};
106#pragma pack()
107
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108struct ctlr_info {
109 int ctlr;
110 char devname[8];
111 char *product_name;
edd16368 112 struct pci_dev *pdev;
01a02ffc 113 u32 board_id;
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114 void __iomem *vaddr;
115 unsigned long paddr;
116 int nr_cmds; /* Number of commands allowed on this controller */
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117#define HPSA_CMDS_RESERVED_FOR_ABORTS 2
118#define HPSA_CMDS_RESERVED_FOR_DRIVER 1
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119 struct CfgTable __iomem *cfgtable;
120 int interrupts_enabled;
edd16368 121 int max_commands;
0cbf768e 122 atomic_t commands_outstanding;
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123# define PERF_MODE_INT 0
124# define DOORBELL_INT 1
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125# define SIMPLE_MODE_INT 2
126# define MEMQ_MODE_INT 3
254f796b 127 unsigned int intr[MAX_REPLY_QUEUES];
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128 unsigned int msix_vector;
129 unsigned int msi_vector;
a9a3a273 130 int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
edd16368 131 struct access_method access;
316b221a 132 char hba_mode_enabled;
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133
134 /* queue and queue Info */
edd16368 135 unsigned int Qdepth;
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136 unsigned int maxSG;
137 spinlock_t lock;
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138 int maxsgentries;
139 u8 max_cmd_sg_entries;
140 int chainsize;
141 struct SGDescriptor **cmd_sg_list;
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142
143 /* pointers to command and error info pool */
144 struct CommandList *cmd_pool;
145 dma_addr_t cmd_pool_dhandle;
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146 struct io_accel1_cmd *ioaccel_cmd_pool;
147 dma_addr_t ioaccel_cmd_pool_dhandle;
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148 struct io_accel2_cmd *ioaccel2_cmd_pool;
149 dma_addr_t ioaccel2_cmd_pool_dhandle;
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150 struct ErrorInfo *errinfo_pool;
151 dma_addr_t errinfo_pool_dhandle;
152 unsigned long *cmd_pool_bits;
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153 int scan_finished;
154 spinlock_t scan_lock;
155 wait_queue_head_t scan_wait_queue;
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156
157 struct Scsi_Host *scsi_host;
158 spinlock_t devlock; /* to protect hba[ctlr]->dev[]; */
159 int ndevices; /* number of used elements in .dev[] array. */
cfe5badc 160 struct hpsa_scsi_dev_t *dev[HPSA_MAX_DEVICES];
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161 /*
162 * Performant mode tables.
163 */
164 u32 trans_support;
165 u32 trans_offset;
42a91641 166 struct TransTable_struct __iomem *transtable;
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167 unsigned long transMethod;
168
0390f0c0 169 /* cap concurrent passthrus at some reasonable maximum */
45fcb86e 170#define HPSA_MAX_CONCURRENT_PASSTHRUS (10)
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171 spinlock_t passthru_count_lock; /* protects passthru_count */
172 int passthru_count;
173
303932fd 174 /*
254f796b 175 * Performant mode completion buffers
303932fd 176 */
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177 size_t reply_queue_size;
178 struct reply_queue_buffer reply_queue[MAX_REPLY_QUEUES];
254f796b 179 u8 nreply_queues;
303932fd 180 u32 *blockFetchTable;
e1f7de0c 181 u32 *ioaccel1_blockFetchTable;
aca9012a 182 u32 *ioaccel2_blockFetchTable;
42a91641 183 u32 __iomem *ioaccel2_bft2_regs;
339b2b14 184 unsigned char *hba_inquiry_data;
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185 u32 driver_support;
186 u32 fw_support;
187 int ioaccel_support;
188 int ioaccel_maxsg;
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189 u64 last_intr_timestamp;
190 u32 last_heartbeat;
191 u64 last_heartbeat_timestamp;
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192 u32 heartbeat_sample_interval;
193 atomic_t firmware_flash_in_progress;
42a91641 194 u32 __percpu *lockup_detected;
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195 struct delayed_work monitor_ctlr_work;
196 int remove_in_progress;
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197 /* Address of h->q[x] is passed to intr handler to know which queue */
198 u8 q[MAX_REPLY_QUEUES];
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199 u32 TMFSupportFlags; /* cache what task mgmt funcs are supported. */
200#define HPSATMF_BITS_SUPPORTED (1 << 0)
201#define HPSATMF_PHYS_LUN_RESET (1 << 1)
202#define HPSATMF_PHYS_NEX_RESET (1 << 2)
203#define HPSATMF_PHYS_TASK_ABORT (1 << 3)
204#define HPSATMF_PHYS_TSET_ABORT (1 << 4)
205#define HPSATMF_PHYS_CLEAR_ACA (1 << 5)
206#define HPSATMF_PHYS_CLEAR_TSET (1 << 6)
207#define HPSATMF_PHYS_QRY_TASK (1 << 7)
208#define HPSATMF_PHYS_QRY_TSET (1 << 8)
209#define HPSATMF_PHYS_QRY_ASYNC (1 << 9)
210#define HPSATMF_MASK_SUPPORTED (1 << 16)
211#define HPSATMF_LOG_LUN_RESET (1 << 17)
212#define HPSATMF_LOG_NEX_RESET (1 << 18)
213#define HPSATMF_LOG_TASK_ABORT (1 << 19)
214#define HPSATMF_LOG_TSET_ABORT (1 << 20)
215#define HPSATMF_LOG_CLEAR_ACA (1 << 21)
216#define HPSATMF_LOG_CLEAR_TSET (1 << 22)
217#define HPSATMF_LOG_QRY_TASK (1 << 23)
218#define HPSATMF_LOG_QRY_TSET (1 << 24)
219#define HPSATMF_LOG_QRY_ASYNC (1 << 25)
76438d08 220 u32 events;
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221#define CTLR_STATE_CHANGE_EVENT (1 << 0)
222#define CTLR_ENCLOSURE_HOT_PLUG_EVENT (1 << 1)
223#define CTLR_STATE_CHANGE_EVENT_PHYSICAL_DRV (1 << 4)
224#define CTLR_STATE_CHANGE_EVENT_LOGICAL_DRV (1 << 5)
225#define CTLR_STATE_CHANGE_EVENT_REDUNDANT_CNTRL (1 << 6)
226#define CTLR_STATE_CHANGE_EVENT_AIO_ENABLED_DISABLED (1 << 30)
227#define CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE (1 << 31)
228
229#define RESCAN_REQUIRED_EVENT_BITS \
7b2c46ee 230 (CTLR_ENCLOSURE_HOT_PLUG_EVENT | \
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231 CTLR_STATE_CHANGE_EVENT_PHYSICAL_DRV | \
232 CTLR_STATE_CHANGE_EVENT_LOGICAL_DRV | \
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233 CTLR_STATE_CHANGE_EVENT_AIO_ENABLED_DISABLED | \
234 CTLR_STATE_CHANGE_EVENT_AIO_CONFIG_CHANGE)
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235 spinlock_t offline_device_lock;
236 struct list_head offline_device_list;
da0697bd 237 int acciopath_status;
2ba8bfc8 238 int raid_offload_debug;
edd16368 239};
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240
241struct offline_device_entry {
242 unsigned char scsi3addr[8];
243 struct list_head offline_list;
244};
245
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246#define HPSA_ABORT_MSG 0
247#define HPSA_DEVICE_RESET_MSG 1
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248#define HPSA_RESET_TYPE_CONTROLLER 0x00
249#define HPSA_RESET_TYPE_BUS 0x01
250#define HPSA_RESET_TYPE_TARGET 0x03
251#define HPSA_RESET_TYPE_LUN 0x04
edd16368 252#define HPSA_MSG_SEND_RETRY_LIMIT 10
516fda49 253#define HPSA_MSG_SEND_RETRY_INTERVAL_MSECS (10000)
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254
255/* Maximum time in seconds driver will wait for command completions
256 * when polling before giving up.
257 */
258#define HPSA_MAX_POLL_TIME_SECS (20)
259
260/* During SCSI error recovery, HPSA_TUR_RETRY_LIMIT defines
261 * how many times to retry TEST UNIT READY on a device
262 * while waiting for it to become ready before giving up.
263 * HPSA_MAX_WAIT_INTERVAL_SECS is the max wait interval
264 * between sending TURs while waiting for a device
265 * to become ready.
266 */
267#define HPSA_TUR_RETRY_LIMIT (20)
268#define HPSA_MAX_WAIT_INTERVAL_SECS (30)
269
270/* HPSA_BOARD_READY_WAIT_SECS is how long to wait for a board
271 * to become ready, in seconds, before giving up on it.
272 * HPSA_BOARD_READY_POLL_INTERVAL_MSECS * is how long to wait
273 * between polling the board to see if it is ready, in
274 * milliseconds. HPSA_BOARD_READY_POLL_INTERVAL and
275 * HPSA_BOARD_READY_ITERATIONS are derived from those.
276 */
277#define HPSA_BOARD_READY_WAIT_SECS (120)
2ed7127b 278#define HPSA_BOARD_NOT_READY_WAIT_SECS (100)
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279#define HPSA_BOARD_READY_POLL_INTERVAL_MSECS (100)
280#define HPSA_BOARD_READY_POLL_INTERVAL \
281 ((HPSA_BOARD_READY_POLL_INTERVAL_MSECS * HZ) / 1000)
282#define HPSA_BOARD_READY_ITERATIONS \
283 ((HPSA_BOARD_READY_WAIT_SECS * 1000) / \
284 HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
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285#define HPSA_BOARD_NOT_READY_ITERATIONS \
286 ((HPSA_BOARD_NOT_READY_WAIT_SECS * 1000) / \
287 HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
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288#define HPSA_POST_RESET_PAUSE_MSECS (3000)
289#define HPSA_POST_RESET_NOOP_RETRIES (12)
290
291/* Defining the diffent access_menthods */
292/*
293 * Memory mapped FIFO interface (SMART 53xx cards)
294 */
295#define SA5_DOORBELL 0x20
296#define SA5_REQUEST_PORT_OFFSET 0x40
297#define SA5_REPLY_INTR_MASK_OFFSET 0x34
298#define SA5_REPLY_PORT_OFFSET 0x44
299#define SA5_INTR_STATUS 0x30
300#define SA5_SCRATCHPAD_OFFSET 0xB0
301
302#define SA5_CTCFG_OFFSET 0xB4
303#define SA5_CTMEM_OFFSET 0xB8
304
305#define SA5_INTR_OFF 0x08
306#define SA5B_INTR_OFF 0x04
307#define SA5_INTR_PENDING 0x08
308#define SA5B_INTR_PENDING 0x04
309#define FIFO_EMPTY 0xffffffff
310#define HPSA_FIRMWARE_READY 0xffff0000 /* value in scratchpad register */
311
312#define HPSA_ERROR_BIT 0x02
edd16368 313
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314/* Performant mode flags */
315#define SA5_PERF_INTR_PENDING 0x04
316#define SA5_PERF_INTR_OFF 0x05
317#define SA5_OUTDB_STATUS_PERF_BIT 0x01
318#define SA5_OUTDB_CLEAR_PERF_BIT 0x01
319#define SA5_OUTDB_CLEAR 0xA0
320#define SA5_OUTDB_CLEAR_PERF_BIT 0x01
321#define SA5_OUTDB_STATUS 0x9C
322
323
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324#define HPSA_INTR_ON 1
325#define HPSA_INTR_OFF 0
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326
327/*
328 * Inbound Post Queue offsets for IO Accelerator Mode 2
329 */
330#define IOACCEL2_INBOUND_POSTQ_32 0x48
331#define IOACCEL2_INBOUND_POSTQ_64_LOW 0xd0
332#define IOACCEL2_INBOUND_POSTQ_64_HI 0xd4
333
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334/*
335 Send the command to the hardware
336*/
337static void SA5_submit_command(struct ctlr_info *h,
338 struct CommandList *c)
339{
edd16368 340 writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
fec62c36 341 (void) readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
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342}
343
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344static void SA5_submit_command_no_read(struct ctlr_info *h,
345 struct CommandList *c)
346{
347 writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
348}
349
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350static void SA5_submit_command_ioaccel2(struct ctlr_info *h,
351 struct CommandList *c)
352{
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353 if (c->cmd_type == CMD_IOACCEL2)
354 writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32);
355 else
356 writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
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357}
358
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359/*
360 * This card is the opposite of the other cards.
361 * 0 turns interrupts on...
362 * 0x08 turns them off...
363 */
364static void SA5_intr_mask(struct ctlr_info *h, unsigned long val)
365{
366 if (val) { /* Turn interrupts on */
367 h->interrupts_enabled = 1;
368 writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
8cd21da7 369 (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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370 } else { /* Turn them off */
371 h->interrupts_enabled = 0;
372 writel(SA5_INTR_OFF,
373 h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
8cd21da7 374 (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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375 }
376}
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377
378static void SA5_performant_intr_mask(struct ctlr_info *h, unsigned long val)
379{
380 if (val) { /* turn on interrupts */
381 h->interrupts_enabled = 1;
382 writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
8cd21da7 383 (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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384 } else {
385 h->interrupts_enabled = 0;
386 writel(SA5_PERF_INTR_OFF,
387 h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
8cd21da7 388 (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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389 }
390}
391
254f796b 392static unsigned long SA5_performant_completed(struct ctlr_info *h, u8 q)
303932fd 393{
072b0518 394 struct reply_queue_buffer *rq = &h->reply_queue[q];
0cbf768e 395 unsigned long register_value = FIFO_EMPTY;
303932fd 396
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397 /* msi auto clears the interrupt pending bit. */
398 if (!(h->msi_vector || h->msix_vector)) {
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399 /* flush the controller write of the reply queue by reading
400 * outbound doorbell status register.
401 */
402 register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
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403 writel(SA5_OUTDB_CLEAR_PERF_BIT, h->vaddr + SA5_OUTDB_CLEAR);
404 /* Do a read in order to flush the write to the controller
405 * (as per spec.)
406 */
407 register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
408 }
409
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410 if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
411 register_value = rq->head[rq->current_entry];
412 rq->current_entry++;
0cbf768e 413 atomic_dec(&h->commands_outstanding);
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414 } else {
415 register_value = FIFO_EMPTY;
416 }
417 /* Check for wraparound */
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418 if (rq->current_entry == h->max_commands) {
419 rq->current_entry = 0;
420 rq->wraparound ^= 1;
303932fd 421 }
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422 return register_value;
423}
424
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425/*
426 * returns value read from hardware.
427 * returns FIFO_EMPTY if there is nothing to read
428 */
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429static unsigned long SA5_completed(struct ctlr_info *h,
430 __attribute__((unused)) u8 q)
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431{
432 unsigned long register_value
433 = readl(h->vaddr + SA5_REPLY_PORT_OFFSET);
434
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435 if (register_value != FIFO_EMPTY)
436 atomic_dec(&h->commands_outstanding);
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437
438#ifdef HPSA_DEBUG
439 if (register_value != FIFO_EMPTY)
84ca0be2 440 dev_dbg(&h->pdev->dev, "Read %lx back from board\n",
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441 register_value);
442 else
f79cfec6 443 dev_dbg(&h->pdev->dev, "FIFO Empty read\n");
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444#endif
445
446 return register_value;
447}
448/*
449 * Returns true if an interrupt is pending..
450 */
900c5440 451static bool SA5_intr_pending(struct ctlr_info *h)
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452{
453 unsigned long register_value =
454 readl(h->vaddr + SA5_INTR_STATUS);
900c5440 455 return register_value & SA5_INTR_PENDING;
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456}
457
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458static bool SA5_performant_intr_pending(struct ctlr_info *h)
459{
460 unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS);
461
462 if (!register_value)
463 return false;
464
465 if (h->msi_vector || h->msix_vector)
466 return true;
467
468 /* Read outbound doorbell to flush */
469 register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
470 return register_value & SA5_OUTDB_STATUS_PERF_BIT;
471}
edd16368 472
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473#define SA5_IOACCEL_MODE1_INTR_STATUS_CMP_BIT 0x100
474
475static bool SA5_ioaccel_mode1_intr_pending(struct ctlr_info *h)
476{
477 unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS);
478
479 return (register_value & SA5_IOACCEL_MODE1_INTR_STATUS_CMP_BIT) ?
480 true : false;
481}
482
483#define IOACCEL_MODE1_REPLY_QUEUE_INDEX 0x1A0
484#define IOACCEL_MODE1_PRODUCER_INDEX 0x1B8
485#define IOACCEL_MODE1_CONSUMER_INDEX 0x1BC
486#define IOACCEL_MODE1_REPLY_UNUSED 0xFFFFFFFFFFFFFFFFULL
487
283b4a9b 488static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q)
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489{
490 u64 register_value;
072b0518 491 struct reply_queue_buffer *rq = &h->reply_queue[q];
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492
493 BUG_ON(q >= h->nreply_queues);
494
495 register_value = rq->head[rq->current_entry];
496 if (register_value != IOACCEL_MODE1_REPLY_UNUSED) {
497 rq->head[rq->current_entry] = IOACCEL_MODE1_REPLY_UNUSED;
498 if (++rq->current_entry == rq->size)
499 rq->current_entry = 0;
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500 /*
501 * @todo
502 *
503 * Don't really need to write the new index after each command,
504 * but with current driver design this is easiest.
505 */
506 wmb();
507 writel((q << 24) | rq->current_entry, h->vaddr +
508 IOACCEL_MODE1_CONSUMER_INDEX);
0cbf768e 509 atomic_dec(&h->commands_outstanding);
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510 }
511 return (unsigned long) register_value;
512}
513
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514static struct access_method SA5_access = {
515 SA5_submit_command,
516 SA5_intr_mask,
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517 SA5_intr_pending,
518 SA5_completed,
519};
520
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521static struct access_method SA5_ioaccel_mode1_access = {
522 SA5_submit_command,
523 SA5_performant_intr_mask,
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524 SA5_ioaccel_mode1_intr_pending,
525 SA5_ioaccel_mode1_completed,
526};
527
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528static struct access_method SA5_ioaccel_mode2_access = {
529 SA5_submit_command_ioaccel2,
530 SA5_performant_intr_mask,
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531 SA5_performant_intr_pending,
532 SA5_performant_completed,
533};
534
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535static struct access_method SA5_performant_access = {
536 SA5_submit_command,
537 SA5_performant_intr_mask,
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538 SA5_performant_intr_pending,
539 SA5_performant_completed,
540};
541
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542static struct access_method SA5_performant_access_no_read = {
543 SA5_submit_command_no_read,
544 SA5_performant_intr_mask,
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545 SA5_performant_intr_pending,
546 SA5_performant_completed,
547};
548
edd16368 549struct board_type {
01a02ffc 550 u32 board_id;
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551 char *product_name;
552 struct access_method *access;
553};
554
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555#endif /* HPSA_H */
556