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873e65bc | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f0c568a4 JL |
2 | /* |
3 | * Marvell UMI driver | |
4 | * | |
5 | * Copyright 2011 Marvell. <jyli@marvell.com> | |
f0c568a4 JL |
6 | */ |
7 | ||
8 | #include <linux/kernel.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/moduleparam.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/list.h> | |
15 | #include <linux/spinlock.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/delay.h> | |
36f8ef7f | 18 | #include <linux/ktime.h> |
f0c568a4 JL |
19 | #include <linux/blkdev.h> |
20 | #include <linux/io.h> | |
21 | #include <scsi/scsi.h> | |
22 | #include <scsi/scsi_cmnd.h> | |
bd756dde | 23 | #include <scsi/scsi_device.h> |
f0c568a4 JL |
24 | #include <scsi/scsi_host.h> |
25 | #include <scsi/scsi_transport.h> | |
26 | #include <scsi/scsi_eh.h> | |
27 | #include <linux/uaccess.h> | |
bd756dde | 28 | #include <linux/kthread.h> |
f0c568a4 JL |
29 | |
30 | #include "mvumi.h" | |
31 | ||
32 | MODULE_LICENSE("GPL"); | |
33 | MODULE_AUTHOR("jyli@marvell.com"); | |
34 | MODULE_DESCRIPTION("Marvell UMI Driver"); | |
35 | ||
9baa3c34 | 36 | static const struct pci_device_id mvumi_pci_table[] = { |
c85bcadc MS |
37 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, PCI_DEVICE_ID_MARVELL_MV9143) }, |
38 | { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, PCI_DEVICE_ID_MARVELL_MV9580) }, | |
f0c568a4 JL |
39 | { 0 } |
40 | }; | |
41 | ||
42 | MODULE_DEVICE_TABLE(pci, mvumi_pci_table); | |
43 | ||
44 | static void tag_init(struct mvumi_tag *st, unsigned short size) | |
45 | { | |
46 | unsigned short i; | |
47 | BUG_ON(size != st->size); | |
48 | st->top = size; | |
49 | for (i = 0; i < size; i++) | |
50 | st->stack[i] = size - 1 - i; | |
51 | } | |
52 | ||
53 | static unsigned short tag_get_one(struct mvumi_hba *mhba, struct mvumi_tag *st) | |
54 | { | |
55 | BUG_ON(st->top <= 0); | |
56 | return st->stack[--st->top]; | |
57 | } | |
58 | ||
59 | static void tag_release_one(struct mvumi_hba *mhba, struct mvumi_tag *st, | |
60 | unsigned short tag) | |
61 | { | |
62 | BUG_ON(st->top >= st->size); | |
63 | st->stack[st->top++] = tag; | |
64 | } | |
65 | ||
66 | static bool tag_is_empty(struct mvumi_tag *st) | |
67 | { | |
68 | if (st->top == 0) | |
59f90f5e | 69 | return true; |
f0c568a4 | 70 | else |
59f90f5e | 71 | return false; |
f0c568a4 JL |
72 | } |
73 | ||
74 | static void mvumi_unmap_pci_addr(struct pci_dev *dev, void **addr_array) | |
75 | { | |
76 | int i; | |
77 | ||
78 | for (i = 0; i < MAX_BASE_ADDRESS; i++) | |
79 | if ((pci_resource_flags(dev, i) & IORESOURCE_MEM) && | |
80 | addr_array[i]) | |
81 | pci_iounmap(dev, addr_array[i]); | |
82 | } | |
83 | ||
84 | static int mvumi_map_pci_addr(struct pci_dev *dev, void **addr_array) | |
85 | { | |
86 | int i; | |
87 | ||
88 | for (i = 0; i < MAX_BASE_ADDRESS; i++) { | |
89 | if (pci_resource_flags(dev, i) & IORESOURCE_MEM) { | |
90 | addr_array[i] = pci_iomap(dev, i, 0); | |
91 | if (!addr_array[i]) { | |
92 | dev_err(&dev->dev, "failed to map Bar[%d]\n", | |
93 | i); | |
94 | mvumi_unmap_pci_addr(dev, addr_array); | |
95 | return -ENOMEM; | |
96 | } | |
97 | } else | |
98 | addr_array[i] = NULL; | |
99 | ||
100 | dev_dbg(&dev->dev, "Bar %d : %p.\n", i, addr_array[i]); | |
101 | } | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
106 | static struct mvumi_res *mvumi_alloc_mem_resource(struct mvumi_hba *mhba, | |
107 | enum resource_type type, unsigned int size) | |
108 | { | |
bd756dde | 109 | struct mvumi_res *res = kzalloc(sizeof(*res), GFP_ATOMIC); |
f0c568a4 JL |
110 | |
111 | if (!res) { | |
112 | dev_err(&mhba->pdev->dev, | |
59e13d48 | 113 | "Failed to allocate memory for resource manager.\n"); |
f0c568a4 JL |
114 | return NULL; |
115 | } | |
116 | ||
117 | switch (type) { | |
118 | case RESOURCE_CACHED_MEMORY: | |
bd756dde | 119 | res->virt_addr = kzalloc(size, GFP_ATOMIC); |
f0c568a4 JL |
120 | if (!res->virt_addr) { |
121 | dev_err(&mhba->pdev->dev, | |
122 | "unable to allocate memory,size = %d.\n", size); | |
123 | kfree(res); | |
124 | return NULL; | |
125 | } | |
126 | break; | |
127 | ||
128 | case RESOURCE_UNCACHED_MEMORY: | |
129 | size = round_up(size, 8); | |
750afb08 LC |
130 | res->virt_addr = dma_alloc_coherent(&mhba->pdev->dev, size, |
131 | &res->bus_addr, | |
132 | GFP_KERNEL); | |
f0c568a4 JL |
133 | if (!res->virt_addr) { |
134 | dev_err(&mhba->pdev->dev, | |
135 | "unable to allocate consistent mem," | |
136 | "size = %d.\n", size); | |
137 | kfree(res); | |
138 | return NULL; | |
139 | } | |
f0c568a4 JL |
140 | break; |
141 | ||
142 | default: | |
143 | dev_err(&mhba->pdev->dev, "unknown resource type %d.\n", type); | |
144 | kfree(res); | |
145 | return NULL; | |
146 | } | |
147 | ||
148 | res->type = type; | |
149 | res->size = size; | |
150 | INIT_LIST_HEAD(&res->entry); | |
151 | list_add_tail(&res->entry, &mhba->res_list); | |
152 | ||
153 | return res; | |
154 | } | |
155 | ||
156 | static void mvumi_release_mem_resource(struct mvumi_hba *mhba) | |
157 | { | |
158 | struct mvumi_res *res, *tmp; | |
159 | ||
160 | list_for_each_entry_safe(res, tmp, &mhba->res_list, entry) { | |
161 | switch (res->type) { | |
162 | case RESOURCE_UNCACHED_MEMORY: | |
ab8e7f4b | 163 | dma_free_coherent(&mhba->pdev->dev, res->size, |
f0c568a4 JL |
164 | res->virt_addr, res->bus_addr); |
165 | break; | |
166 | case RESOURCE_CACHED_MEMORY: | |
167 | kfree(res->virt_addr); | |
168 | break; | |
169 | default: | |
170 | dev_err(&mhba->pdev->dev, | |
171 | "unknown resource type %d\n", res->type); | |
172 | break; | |
173 | } | |
174 | list_del(&res->entry); | |
175 | kfree(res); | |
176 | } | |
177 | mhba->fw_flag &= ~MVUMI_FW_ALLOC; | |
178 | } | |
179 | ||
180 | /** | |
181 | * mvumi_make_sgl - Prepares SGL | |
182 | * @mhba: Adapter soft state | |
183 | * @scmd: SCSI command from the mid-layer | |
184 | * @sgl_p: SGL to be filled in | |
5ccd6265 | 185 | * @sg_count: return the number of SG elements |
f0c568a4 JL |
186 | * |
187 | * If successful, this function returns 0. otherwise, it returns -1. | |
188 | */ | |
189 | static int mvumi_make_sgl(struct mvumi_hba *mhba, struct scsi_cmnd *scmd, | |
190 | void *sgl_p, unsigned char *sg_count) | |
191 | { | |
192 | struct scatterlist *sg; | |
193 | struct mvumi_sgl *m_sg = (struct mvumi_sgl *) sgl_p; | |
194 | unsigned int i; | |
195 | unsigned int sgnum = scsi_sg_count(scmd); | |
196 | dma_addr_t busaddr; | |
197 | ||
3c1a30df | 198 | *sg_count = dma_map_sg(&mhba->pdev->dev, scsi_sglist(scmd), sgnum, |
ab8e7f4b | 199 | scmd->sc_data_direction); |
4bd13a07 AK |
200 | if (*sg_count > mhba->max_sge) { |
201 | dev_err(&mhba->pdev->dev, | |
202 | "sg count[0x%x] is bigger than max sg[0x%x].\n", | |
203 | *sg_count, mhba->max_sge); | |
3c1a30df | 204 | dma_unmap_sg(&mhba->pdev->dev, scsi_sglist(scmd), sgnum, |
ab8e7f4b | 205 | scmd->sc_data_direction); |
4bd13a07 AK |
206 | return -1; |
207 | } | |
3c1a30df ML |
208 | scsi_for_each_sg(scmd, sg, *sg_count, i) { |
209 | busaddr = sg_dma_address(sg); | |
f0c568a4 JL |
210 | m_sg->baseaddr_l = cpu_to_le32(lower_32_bits(busaddr)); |
211 | m_sg->baseaddr_h = cpu_to_le32(upper_32_bits(busaddr)); | |
4bd13a07 | 212 | m_sg->flags = 0; |
3c1a30df | 213 | sgd_setsz(mhba, m_sg, cpu_to_le32(sg_dma_len(sg))); |
4bd13a07 AK |
214 | if ((i + 1) == *sg_count) |
215 | m_sg->flags |= 1U << mhba->eot_flag; | |
216 | ||
217 | sgd_inc(mhba, m_sg); | |
f0c568a4 JL |
218 | } |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
223 | static int mvumi_internal_cmd_sgl(struct mvumi_hba *mhba, struct mvumi_cmd *cmd, | |
224 | unsigned int size) | |
225 | { | |
226 | struct mvumi_sgl *m_sg; | |
227 | void *virt_addr; | |
228 | dma_addr_t phy_addr; | |
229 | ||
230 | if (size == 0) | |
231 | return 0; | |
232 | ||
750afb08 LC |
233 | virt_addr = dma_alloc_coherent(&mhba->pdev->dev, size, &phy_addr, |
234 | GFP_KERNEL); | |
f0c568a4 JL |
235 | if (!virt_addr) |
236 | return -1; | |
237 | ||
f0c568a4 JL |
238 | m_sg = (struct mvumi_sgl *) &cmd->frame->payload[0]; |
239 | cmd->frame->sg_counts = 1; | |
240 | cmd->data_buf = virt_addr; | |
241 | ||
242 | m_sg->baseaddr_l = cpu_to_le32(lower_32_bits(phy_addr)); | |
243 | m_sg->baseaddr_h = cpu_to_le32(upper_32_bits(phy_addr)); | |
bd756dde SF |
244 | m_sg->flags = 1U << mhba->eot_flag; |
245 | sgd_setsz(mhba, m_sg, cpu_to_le32(size)); | |
f0c568a4 JL |
246 | |
247 | return 0; | |
248 | } | |
249 | ||
250 | static struct mvumi_cmd *mvumi_create_internal_cmd(struct mvumi_hba *mhba, | |
251 | unsigned int buf_size) | |
252 | { | |
253 | struct mvumi_cmd *cmd; | |
254 | ||
255 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
256 | if (!cmd) { | |
257 | dev_err(&mhba->pdev->dev, "failed to create a internal cmd\n"); | |
258 | return NULL; | |
259 | } | |
260 | INIT_LIST_HEAD(&cmd->queue_pointer); | |
261 | ||
ab8e7f4b CH |
262 | cmd->frame = dma_alloc_coherent(&mhba->pdev->dev, mhba->ib_max_size, |
263 | &cmd->frame_phys, GFP_KERNEL); | |
f0c568a4 JL |
264 | if (!cmd->frame) { |
265 | dev_err(&mhba->pdev->dev, "failed to allocate memory for FW" | |
266 | " frame,size = %d.\n", mhba->ib_max_size); | |
267 | kfree(cmd); | |
268 | return NULL; | |
269 | } | |
270 | ||
271 | if (buf_size) { | |
272 | if (mvumi_internal_cmd_sgl(mhba, cmd, buf_size)) { | |
273 | dev_err(&mhba->pdev->dev, "failed to allocate memory" | |
274 | " for internal frame\n"); | |
ab8e7f4b | 275 | dma_free_coherent(&mhba->pdev->dev, mhba->ib_max_size, |
bd756dde | 276 | cmd->frame, cmd->frame_phys); |
f0c568a4 JL |
277 | kfree(cmd); |
278 | return NULL; | |
279 | } | |
280 | } else | |
281 | cmd->frame->sg_counts = 0; | |
282 | ||
283 | return cmd; | |
284 | } | |
285 | ||
286 | static void mvumi_delete_internal_cmd(struct mvumi_hba *mhba, | |
287 | struct mvumi_cmd *cmd) | |
288 | { | |
289 | struct mvumi_sgl *m_sg; | |
290 | unsigned int size; | |
291 | dma_addr_t phy_addr; | |
292 | ||
293 | if (cmd && cmd->frame) { | |
294 | if (cmd->frame->sg_counts) { | |
295 | m_sg = (struct mvumi_sgl *) &cmd->frame->payload[0]; | |
bd756dde | 296 | sgd_getsz(mhba, m_sg, size); |
f0c568a4 JL |
297 | |
298 | phy_addr = (dma_addr_t) m_sg->baseaddr_l | | |
299 | (dma_addr_t) ((m_sg->baseaddr_h << 16) << 16); | |
300 | ||
ab8e7f4b | 301 | dma_free_coherent(&mhba->pdev->dev, size, cmd->data_buf, |
f0c568a4 JL |
302 | phy_addr); |
303 | } | |
ab8e7f4b | 304 | dma_free_coherent(&mhba->pdev->dev, mhba->ib_max_size, |
bd756dde | 305 | cmd->frame, cmd->frame_phys); |
f0c568a4 JL |
306 | kfree(cmd); |
307 | } | |
308 | } | |
309 | ||
310 | /** | |
311 | * mvumi_get_cmd - Get a command from the free pool | |
312 | * @mhba: Adapter soft state | |
313 | * | |
314 | * Returns a free command from the pool | |
315 | */ | |
316 | static struct mvumi_cmd *mvumi_get_cmd(struct mvumi_hba *mhba) | |
317 | { | |
318 | struct mvumi_cmd *cmd = NULL; | |
319 | ||
320 | if (likely(!list_empty(&mhba->cmd_pool))) { | |
321 | cmd = list_entry((&mhba->cmd_pool)->next, | |
322 | struct mvumi_cmd, queue_pointer); | |
323 | list_del_init(&cmd->queue_pointer); | |
324 | } else | |
325 | dev_warn(&mhba->pdev->dev, "command pool is empty!\n"); | |
326 | ||
327 | return cmd; | |
328 | } | |
329 | ||
330 | /** | |
331 | * mvumi_return_cmd - Return a cmd to free command pool | |
332 | * @mhba: Adapter soft state | |
333 | * @cmd: Command packet to be returned to free command pool | |
334 | */ | |
335 | static inline void mvumi_return_cmd(struct mvumi_hba *mhba, | |
336 | struct mvumi_cmd *cmd) | |
337 | { | |
338 | cmd->scmd = NULL; | |
339 | list_add_tail(&cmd->queue_pointer, &mhba->cmd_pool); | |
340 | } | |
341 | ||
342 | /** | |
343 | * mvumi_free_cmds - Free all the cmds in the free cmd pool | |
344 | * @mhba: Adapter soft state | |
345 | */ | |
346 | static void mvumi_free_cmds(struct mvumi_hba *mhba) | |
347 | { | |
348 | struct mvumi_cmd *cmd; | |
349 | ||
350 | while (!list_empty(&mhba->cmd_pool)) { | |
351 | cmd = list_first_entry(&mhba->cmd_pool, struct mvumi_cmd, | |
352 | queue_pointer); | |
353 | list_del(&cmd->queue_pointer); | |
bd756dde SF |
354 | if (!(mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC)) |
355 | kfree(cmd->frame); | |
f0c568a4 JL |
356 | kfree(cmd); |
357 | } | |
358 | } | |
359 | ||
360 | /** | |
361 | * mvumi_alloc_cmds - Allocates the command packets | |
362 | * @mhba: Adapter soft state | |
363 | * | |
364 | */ | |
365 | static int mvumi_alloc_cmds(struct mvumi_hba *mhba) | |
366 | { | |
367 | int i; | |
368 | struct mvumi_cmd *cmd; | |
369 | ||
370 | for (i = 0; i < mhba->max_io; i++) { | |
371 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
372 | if (!cmd) | |
373 | goto err_exit; | |
374 | ||
375 | INIT_LIST_HEAD(&cmd->queue_pointer); | |
376 | list_add_tail(&cmd->queue_pointer, &mhba->cmd_pool); | |
bd756dde SF |
377 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) { |
378 | cmd->frame = mhba->ib_frame + i * mhba->ib_max_size; | |
379 | cmd->frame_phys = mhba->ib_frame_phys | |
380 | + i * mhba->ib_max_size; | |
381 | } else | |
382 | cmd->frame = kzalloc(mhba->ib_max_size, GFP_KERNEL); | |
f0c568a4 JL |
383 | if (!cmd->frame) |
384 | goto err_exit; | |
385 | } | |
386 | return 0; | |
387 | ||
388 | err_exit: | |
389 | dev_err(&mhba->pdev->dev, | |
390 | "failed to allocate memory for cmd[0x%x].\n", i); | |
391 | while (!list_empty(&mhba->cmd_pool)) { | |
392 | cmd = list_first_entry(&mhba->cmd_pool, struct mvumi_cmd, | |
393 | queue_pointer); | |
394 | list_del(&cmd->queue_pointer); | |
bd756dde SF |
395 | if (!(mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC)) |
396 | kfree(cmd->frame); | |
f0c568a4 JL |
397 | kfree(cmd); |
398 | } | |
399 | return -ENOMEM; | |
400 | } | |
401 | ||
bd756dde | 402 | static unsigned int mvumi_check_ib_list_9143(struct mvumi_hba *mhba) |
f0c568a4 | 403 | { |
bd756dde SF |
404 | unsigned int ib_rp_reg; |
405 | struct mvumi_hw_regs *regs = mhba->regs; | |
406 | ||
407 | ib_rp_reg = ioread32(mhba->regs->inb_read_pointer); | |
f0c568a4 | 408 | |
bd756dde SF |
409 | if (unlikely(((ib_rp_reg & regs->cl_slot_num_mask) == |
410 | (mhba->ib_cur_slot & regs->cl_slot_num_mask)) && | |
411 | ((ib_rp_reg & regs->cl_pointer_toggle) | |
412 | != (mhba->ib_cur_slot & regs->cl_pointer_toggle)))) { | |
413 | dev_warn(&mhba->pdev->dev, "no free slot to use.\n"); | |
414 | return 0; | |
415 | } | |
f0c568a4 JL |
416 | if (atomic_read(&mhba->fw_outstanding) >= mhba->max_io) { |
417 | dev_warn(&mhba->pdev->dev, "firmware io overflow.\n"); | |
bd756dde SF |
418 | return 0; |
419 | } else { | |
420 | return mhba->max_io - atomic_read(&mhba->fw_outstanding); | |
f0c568a4 | 421 | } |
bd756dde | 422 | } |
f0c568a4 | 423 | |
bd756dde SF |
424 | static unsigned int mvumi_check_ib_list_9580(struct mvumi_hba *mhba) |
425 | { | |
426 | unsigned int count; | |
427 | if (atomic_read(&mhba->fw_outstanding) >= (mhba->max_io - 1)) | |
428 | return 0; | |
429 | count = ioread32(mhba->ib_shadow); | |
430 | if (count == 0xffff) | |
431 | return 0; | |
432 | return count; | |
433 | } | |
434 | ||
435 | static void mvumi_get_ib_list_entry(struct mvumi_hba *mhba, void **ib_entry) | |
436 | { | |
437 | unsigned int cur_ib_entry; | |
f0c568a4 | 438 | |
bd756dde | 439 | cur_ib_entry = mhba->ib_cur_slot & mhba->regs->cl_slot_num_mask; |
f0c568a4 JL |
440 | cur_ib_entry++; |
441 | if (cur_ib_entry >= mhba->list_num_io) { | |
442 | cur_ib_entry -= mhba->list_num_io; | |
bd756dde SF |
443 | mhba->ib_cur_slot ^= mhba->regs->cl_pointer_toggle; |
444 | } | |
445 | mhba->ib_cur_slot &= ~mhba->regs->cl_slot_num_mask; | |
446 | mhba->ib_cur_slot |= (cur_ib_entry & mhba->regs->cl_slot_num_mask); | |
447 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) { | |
448 | *ib_entry = mhba->ib_list + cur_ib_entry * | |
449 | sizeof(struct mvumi_dyn_list_entry); | |
450 | } else { | |
451 | *ib_entry = mhba->ib_list + cur_ib_entry * mhba->ib_max_size; | |
f0c568a4 | 452 | } |
f0c568a4 | 453 | atomic_inc(&mhba->fw_outstanding); |
f0c568a4 JL |
454 | } |
455 | ||
456 | static void mvumi_send_ib_list_entry(struct mvumi_hba *mhba) | |
457 | { | |
bd756dde SF |
458 | iowrite32(0xffff, mhba->ib_shadow); |
459 | iowrite32(mhba->ib_cur_slot, mhba->regs->inb_write_pointer); | |
f0c568a4 JL |
460 | } |
461 | ||
462 | static char mvumi_check_ob_frame(struct mvumi_hba *mhba, | |
463 | unsigned int cur_obf, struct mvumi_rsp_frame *p_outb_frame) | |
464 | { | |
465 | unsigned short tag, request_id; | |
466 | ||
467 | udelay(1); | |
468 | p_outb_frame = mhba->ob_list + cur_obf * mhba->ob_max_size; | |
469 | request_id = p_outb_frame->request_id; | |
470 | tag = p_outb_frame->tag; | |
471 | if (tag > mhba->tag_pool.size) { | |
472 | dev_err(&mhba->pdev->dev, "ob frame data error\n"); | |
473 | return -1; | |
474 | } | |
475 | if (mhba->tag_cmd[tag] == NULL) { | |
476 | dev_err(&mhba->pdev->dev, "tag[0x%x] with NO command\n", tag); | |
477 | return -1; | |
478 | } else if (mhba->tag_cmd[tag]->request_id != request_id && | |
479 | mhba->request_id_enabled) { | |
480 | dev_err(&mhba->pdev->dev, "request ID from FW:0x%x," | |
481 | "cmd request ID:0x%x\n", request_id, | |
482 | mhba->tag_cmd[tag]->request_id); | |
483 | return -1; | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
bd756dde SF |
489 | static int mvumi_check_ob_list_9143(struct mvumi_hba *mhba, |
490 | unsigned int *cur_obf, unsigned int *assign_obf_end) | |
f0c568a4 | 491 | { |
bd756dde SF |
492 | unsigned int ob_write, ob_write_shadow; |
493 | struct mvumi_hw_regs *regs = mhba->regs; | |
f0c568a4 JL |
494 | |
495 | do { | |
bd756dde SF |
496 | ob_write = ioread32(regs->outb_copy_pointer); |
497 | ob_write_shadow = ioread32(mhba->ob_shadow); | |
498 | } while ((ob_write & regs->cl_slot_num_mask) != ob_write_shadow); | |
f0c568a4 | 499 | |
bd756dde SF |
500 | *cur_obf = mhba->ob_cur_slot & mhba->regs->cl_slot_num_mask; |
501 | *assign_obf_end = ob_write & mhba->regs->cl_slot_num_mask; | |
f0c568a4 | 502 | |
bd756dde SF |
503 | if ((ob_write & regs->cl_pointer_toggle) != |
504 | (mhba->ob_cur_slot & regs->cl_pointer_toggle)) { | |
505 | *assign_obf_end += mhba->list_num_io; | |
f0c568a4 | 506 | } |
bd756dde SF |
507 | return 0; |
508 | } | |
509 | ||
510 | static int mvumi_check_ob_list_9580(struct mvumi_hba *mhba, | |
511 | unsigned int *cur_obf, unsigned int *assign_obf_end) | |
512 | { | |
513 | unsigned int ob_write; | |
514 | struct mvumi_hw_regs *regs = mhba->regs; | |
515 | ||
516 | ob_write = ioread32(regs->outb_read_pointer); | |
517 | ob_write = ioread32(regs->outb_copy_pointer); | |
518 | *cur_obf = mhba->ob_cur_slot & mhba->regs->cl_slot_num_mask; | |
519 | *assign_obf_end = ob_write & mhba->regs->cl_slot_num_mask; | |
520 | if (*assign_obf_end < *cur_obf) | |
521 | *assign_obf_end += mhba->list_num_io; | |
522 | else if (*assign_obf_end == *cur_obf) | |
523 | return -1; | |
524 | return 0; | |
525 | } | |
526 | ||
527 | static void mvumi_receive_ob_list_entry(struct mvumi_hba *mhba) | |
528 | { | |
529 | unsigned int cur_obf, assign_obf_end, i; | |
530 | struct mvumi_ob_data *ob_data; | |
531 | struct mvumi_rsp_frame *p_outb_frame; | |
532 | struct mvumi_hw_regs *regs = mhba->regs; | |
533 | ||
534 | if (mhba->instancet->check_ob_list(mhba, &cur_obf, &assign_obf_end)) | |
535 | return; | |
f0c568a4 JL |
536 | |
537 | for (i = (assign_obf_end - cur_obf); i != 0; i--) { | |
538 | cur_obf++; | |
539 | if (cur_obf >= mhba->list_num_io) { | |
540 | cur_obf -= mhba->list_num_io; | |
bd756dde | 541 | mhba->ob_cur_slot ^= regs->cl_pointer_toggle; |
f0c568a4 JL |
542 | } |
543 | ||
544 | p_outb_frame = mhba->ob_list + cur_obf * mhba->ob_max_size; | |
545 | ||
546 | /* Copy pointer may point to entry in outbound list | |
547 | * before entry has valid data | |
548 | */ | |
549 | if (unlikely(p_outb_frame->tag > mhba->tag_pool.size || | |
550 | mhba->tag_cmd[p_outb_frame->tag] == NULL || | |
551 | p_outb_frame->request_id != | |
552 | mhba->tag_cmd[p_outb_frame->tag]->request_id)) | |
553 | if (mvumi_check_ob_frame(mhba, cur_obf, p_outb_frame)) | |
554 | continue; | |
555 | ||
556 | if (!list_empty(&mhba->ob_data_list)) { | |
557 | ob_data = (struct mvumi_ob_data *) | |
558 | list_first_entry(&mhba->ob_data_list, | |
559 | struct mvumi_ob_data, list); | |
560 | list_del_init(&ob_data->list); | |
561 | } else { | |
562 | ob_data = NULL; | |
563 | if (cur_obf == 0) { | |
564 | cur_obf = mhba->list_num_io - 1; | |
bd756dde | 565 | mhba->ob_cur_slot ^= regs->cl_pointer_toggle; |
f0c568a4 JL |
566 | } else |
567 | cur_obf -= 1; | |
568 | break; | |
569 | } | |
570 | ||
571 | memcpy(ob_data->data, p_outb_frame, mhba->ob_max_size); | |
572 | p_outb_frame->tag = 0xff; | |
573 | ||
574 | list_add_tail(&ob_data->list, &mhba->free_ob_list); | |
575 | } | |
bd756dde SF |
576 | mhba->ob_cur_slot &= ~regs->cl_slot_num_mask; |
577 | mhba->ob_cur_slot |= (cur_obf & regs->cl_slot_num_mask); | |
578 | iowrite32(mhba->ob_cur_slot, regs->outb_read_pointer); | |
f0c568a4 JL |
579 | } |
580 | ||
bd756dde | 581 | static void mvumi_reset(struct mvumi_hba *mhba) |
f0c568a4 | 582 | { |
bd756dde SF |
583 | struct mvumi_hw_regs *regs = mhba->regs; |
584 | ||
585 | iowrite32(0, regs->enpointa_mask_reg); | |
586 | if (ioread32(regs->arm_to_pciea_msg1) != HANDSHAKE_DONESTATE) | |
f0c568a4 JL |
587 | return; |
588 | ||
bd756dde | 589 | iowrite32(DRBL_SOFT_RESET, regs->pciea_to_arm_drbl_reg); |
f0c568a4 JL |
590 | } |
591 | ||
592 | static unsigned char mvumi_start(struct mvumi_hba *mhba); | |
593 | ||
594 | static int mvumi_wait_for_outstanding(struct mvumi_hba *mhba) | |
595 | { | |
596 | mhba->fw_state = FW_STATE_ABORT; | |
bd756dde | 597 | mvumi_reset(mhba); |
f0c568a4 JL |
598 | |
599 | if (mvumi_start(mhba)) | |
600 | return FAILED; | |
601 | else | |
602 | return SUCCESS; | |
603 | } | |
604 | ||
bd756dde SF |
605 | static int mvumi_wait_for_fw(struct mvumi_hba *mhba) |
606 | { | |
607 | struct mvumi_hw_regs *regs = mhba->regs; | |
608 | u32 tmp; | |
609 | unsigned long before; | |
610 | before = jiffies; | |
611 | ||
612 | iowrite32(0, regs->enpointa_mask_reg); | |
613 | tmp = ioread32(regs->arm_to_pciea_msg1); | |
614 | while (tmp != HANDSHAKE_READYSTATE) { | |
615 | iowrite32(DRBL_MU_RESET, regs->pciea_to_arm_drbl_reg); | |
616 | if (time_after(jiffies, before + FW_MAX_DELAY * HZ)) { | |
617 | dev_err(&mhba->pdev->dev, | |
618 | "FW reset failed [0x%x].\n", tmp); | |
619 | return FAILED; | |
620 | } | |
621 | ||
622 | msleep(500); | |
623 | rmb(); | |
624 | tmp = ioread32(regs->arm_to_pciea_msg1); | |
625 | } | |
626 | ||
627 | return SUCCESS; | |
628 | } | |
629 | ||
630 | static void mvumi_backup_bar_addr(struct mvumi_hba *mhba) | |
631 | { | |
632 | unsigned char i; | |
633 | ||
634 | for (i = 0; i < MAX_BASE_ADDRESS; i++) { | |
635 | pci_read_config_dword(mhba->pdev, 0x10 + i * 4, | |
636 | &mhba->pci_base[i]); | |
637 | } | |
638 | } | |
639 | ||
640 | static void mvumi_restore_bar_addr(struct mvumi_hba *mhba) | |
641 | { | |
642 | unsigned char i; | |
643 | ||
644 | for (i = 0; i < MAX_BASE_ADDRESS; i++) { | |
645 | if (mhba->pci_base[i]) | |
646 | pci_write_config_dword(mhba->pdev, 0x10 + i * 4, | |
647 | mhba->pci_base[i]); | |
648 | } | |
649 | } | |
650 | ||
ab8e7f4b | 651 | static int mvumi_pci_set_master(struct pci_dev *pdev) |
bd756dde | 652 | { |
ab8e7f4b CH |
653 | int ret = 0; |
654 | ||
bd756dde SF |
655 | pci_set_master(pdev); |
656 | ||
657 | if (IS_DMA64) { | |
ab8e7f4b CH |
658 | if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) |
659 | ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); | |
bd756dde | 660 | } else |
ab8e7f4b | 661 | ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
bd756dde SF |
662 | |
663 | return ret; | |
664 | } | |
665 | ||
666 | static int mvumi_reset_host_9580(struct mvumi_hba *mhba) | |
667 | { | |
668 | mhba->fw_state = FW_STATE_ABORT; | |
669 | ||
670 | iowrite32(0, mhba->regs->reset_enable); | |
671 | iowrite32(0xf, mhba->regs->reset_request); | |
672 | ||
673 | iowrite32(0x10, mhba->regs->reset_enable); | |
674 | iowrite32(0x10, mhba->regs->reset_request); | |
675 | msleep(100); | |
676 | pci_disable_device(mhba->pdev); | |
677 | ||
678 | if (pci_enable_device(mhba->pdev)) { | |
679 | dev_err(&mhba->pdev->dev, "enable device failed\n"); | |
680 | return FAILED; | |
681 | } | |
682 | if (mvumi_pci_set_master(mhba->pdev)) { | |
683 | dev_err(&mhba->pdev->dev, "set master failed\n"); | |
684 | return FAILED; | |
685 | } | |
686 | mvumi_restore_bar_addr(mhba); | |
687 | if (mvumi_wait_for_fw(mhba) == FAILED) | |
688 | return FAILED; | |
689 | ||
690 | return mvumi_wait_for_outstanding(mhba); | |
691 | } | |
692 | ||
693 | static int mvumi_reset_host_9143(struct mvumi_hba *mhba) | |
694 | { | |
695 | return mvumi_wait_for_outstanding(mhba); | |
696 | } | |
697 | ||
f0c568a4 JL |
698 | static int mvumi_host_reset(struct scsi_cmnd *scmd) |
699 | { | |
700 | struct mvumi_hba *mhba; | |
701 | ||
702 | mhba = (struct mvumi_hba *) scmd->device->host->hostdata; | |
703 | ||
7df158ce HR |
704 | scmd_printk(KERN_NOTICE, scmd, "RESET -%u cmd=%x retries=%x\n", |
705 | scmd->request->tag, scmd->cmnd[0], scmd->retries); | |
f0c568a4 | 706 | |
bd756dde | 707 | return mhba->instancet->reset_host(mhba); |
f0c568a4 JL |
708 | } |
709 | ||
710 | static int mvumi_issue_blocked_cmd(struct mvumi_hba *mhba, | |
711 | struct mvumi_cmd *cmd) | |
712 | { | |
713 | unsigned long flags; | |
714 | ||
715 | cmd->cmd_status = REQ_STATUS_PENDING; | |
716 | ||
717 | if (atomic_read(&cmd->sync_cmd)) { | |
718 | dev_err(&mhba->pdev->dev, | |
719 | "last blocked cmd not finished, sync_cmd = %d\n", | |
720 | atomic_read(&cmd->sync_cmd)); | |
721 | BUG_ON(1); | |
722 | return -1; | |
723 | } | |
724 | atomic_inc(&cmd->sync_cmd); | |
725 | spin_lock_irqsave(mhba->shost->host_lock, flags); | |
726 | mhba->instancet->fire_cmd(mhba, cmd); | |
727 | spin_unlock_irqrestore(mhba->shost->host_lock, flags); | |
728 | ||
729 | wait_event_timeout(mhba->int_cmd_wait_q, | |
730 | (cmd->cmd_status != REQ_STATUS_PENDING), | |
731 | MVUMI_INTERNAL_CMD_WAIT_TIME * HZ); | |
732 | ||
733 | /* command timeout */ | |
734 | if (atomic_read(&cmd->sync_cmd)) { | |
735 | spin_lock_irqsave(mhba->shost->host_lock, flags); | |
736 | atomic_dec(&cmd->sync_cmd); | |
737 | if (mhba->tag_cmd[cmd->frame->tag]) { | |
7512ddef | 738 | mhba->tag_cmd[cmd->frame->tag] = NULL; |
f0c568a4 JL |
739 | dev_warn(&mhba->pdev->dev, "TIMEOUT:release tag [%d]\n", |
740 | cmd->frame->tag); | |
741 | tag_release_one(mhba, &mhba->tag_pool, cmd->frame->tag); | |
742 | } | |
743 | if (!list_empty(&cmd->queue_pointer)) { | |
744 | dev_warn(&mhba->pdev->dev, | |
745 | "TIMEOUT:A internal command doesn't send!\n"); | |
746 | list_del_init(&cmd->queue_pointer); | |
747 | } else | |
748 | atomic_dec(&mhba->fw_outstanding); | |
749 | ||
750 | spin_unlock_irqrestore(mhba->shost->host_lock, flags); | |
751 | } | |
752 | return 0; | |
753 | } | |
754 | ||
755 | static void mvumi_release_fw(struct mvumi_hba *mhba) | |
756 | { | |
757 | mvumi_free_cmds(mhba); | |
758 | mvumi_release_mem_resource(mhba); | |
759 | mvumi_unmap_pci_addr(mhba->pdev, mhba->base_addr); | |
ab8e7f4b | 760 | dma_free_coherent(&mhba->pdev->dev, HSP_MAX_SIZE, |
bd756dde SF |
761 | mhba->handshake_page, mhba->handshake_page_phys); |
762 | kfree(mhba->regs); | |
f0c568a4 JL |
763 | pci_release_regions(mhba->pdev); |
764 | } | |
765 | ||
766 | static unsigned char mvumi_flush_cache(struct mvumi_hba *mhba) | |
767 | { | |
768 | struct mvumi_cmd *cmd; | |
769 | struct mvumi_msg_frame *frame; | |
770 | unsigned char device_id, retry = 0; | |
771 | unsigned char bitcount = sizeof(unsigned char) * 8; | |
772 | ||
773 | for (device_id = 0; device_id < mhba->max_target_id; device_id++) { | |
774 | if (!(mhba->target_map[device_id / bitcount] & | |
775 | (1 << (device_id % bitcount)))) | |
776 | continue; | |
777 | get_cmd: cmd = mvumi_create_internal_cmd(mhba, 0); | |
778 | if (!cmd) { | |
779 | if (retry++ >= 5) { | |
780 | dev_err(&mhba->pdev->dev, "failed to get memory" | |
781 | " for internal flush cache cmd for " | |
782 | "device %d", device_id); | |
783 | retry = 0; | |
784 | continue; | |
785 | } else | |
786 | goto get_cmd; | |
787 | } | |
788 | cmd->scmd = NULL; | |
789 | cmd->cmd_status = REQ_STATUS_PENDING; | |
790 | atomic_set(&cmd->sync_cmd, 0); | |
791 | frame = cmd->frame; | |
792 | frame->req_function = CL_FUN_SCSI_CMD; | |
793 | frame->device_id = device_id; | |
794 | frame->cmd_flag = CMD_FLAG_NON_DATA; | |
795 | frame->data_transfer_length = 0; | |
796 | frame->cdb_length = MAX_COMMAND_SIZE; | |
797 | memset(frame->cdb, 0, MAX_COMMAND_SIZE); | |
798 | frame->cdb[0] = SCSI_CMD_MARVELL_SPECIFIC; | |
bd756dde | 799 | frame->cdb[1] = CDB_CORE_MODULE; |
f0c568a4 JL |
800 | frame->cdb[2] = CDB_CORE_SHUTDOWN; |
801 | ||
802 | mvumi_issue_blocked_cmd(mhba, cmd); | |
803 | if (cmd->cmd_status != SAM_STAT_GOOD) { | |
804 | dev_err(&mhba->pdev->dev, | |
805 | "device %d flush cache failed, status=0x%x.\n", | |
806 | device_id, cmd->cmd_status); | |
807 | } | |
808 | ||
809 | mvumi_delete_internal_cmd(mhba, cmd); | |
810 | } | |
811 | return 0; | |
812 | } | |
813 | ||
814 | static unsigned char | |
815 | mvumi_calculate_checksum(struct mvumi_hs_header *p_header, | |
816 | unsigned short len) | |
817 | { | |
818 | unsigned char *ptr; | |
819 | unsigned char ret = 0, i; | |
820 | ||
821 | ptr = (unsigned char *) p_header->frame_content; | |
822 | for (i = 0; i < len; i++) { | |
823 | ret ^= *ptr; | |
824 | ptr++; | |
825 | } | |
826 | ||
827 | return ret; | |
828 | } | |
829 | ||
bd756dde | 830 | static void mvumi_hs_build_page(struct mvumi_hba *mhba, |
f0c568a4 JL |
831 | struct mvumi_hs_header *hs_header) |
832 | { | |
833 | struct mvumi_hs_page2 *hs_page2; | |
834 | struct mvumi_hs_page4 *hs_page4; | |
835 | struct mvumi_hs_page3 *hs_page3; | |
36f8ef7f TR |
836 | u64 time; |
837 | u64 local_time; | |
f0c568a4 JL |
838 | |
839 | switch (hs_header->page_code) { | |
840 | case HS_PAGE_HOST_INFO: | |
841 | hs_page2 = (struct mvumi_hs_page2 *) hs_header; | |
842 | hs_header->frame_length = sizeof(*hs_page2) - 4; | |
843 | memset(hs_header->frame_content, 0, hs_header->frame_length); | |
844 | hs_page2->host_type = 3; /* 3 mean linux*/ | |
bd756dde SF |
845 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) |
846 | hs_page2->host_cap = 0x08;/* host dynamic source mode */ | |
f0c568a4 JL |
847 | hs_page2->host_ver.ver_major = VER_MAJOR; |
848 | hs_page2->host_ver.ver_minor = VER_MINOR; | |
849 | hs_page2->host_ver.ver_oem = VER_OEM; | |
850 | hs_page2->host_ver.ver_build = VER_BUILD; | |
851 | hs_page2->system_io_bus = 0; | |
852 | hs_page2->slot_number = 0; | |
853 | hs_page2->intr_level = 0; | |
854 | hs_page2->intr_vector = 0; | |
36f8ef7f TR |
855 | time = ktime_get_real_seconds(); |
856 | local_time = (time - (sys_tz.tz_minuteswest * 60)); | |
f0c568a4 JL |
857 | hs_page2->seconds_since1970 = local_time; |
858 | hs_header->checksum = mvumi_calculate_checksum(hs_header, | |
859 | hs_header->frame_length); | |
860 | break; | |
861 | ||
862 | case HS_PAGE_FIRM_CTL: | |
863 | hs_page3 = (struct mvumi_hs_page3 *) hs_header; | |
864 | hs_header->frame_length = sizeof(*hs_page3) - 4; | |
865 | memset(hs_header->frame_content, 0, hs_header->frame_length); | |
866 | hs_header->checksum = mvumi_calculate_checksum(hs_header, | |
867 | hs_header->frame_length); | |
868 | break; | |
869 | ||
870 | case HS_PAGE_CL_INFO: | |
871 | hs_page4 = (struct mvumi_hs_page4 *) hs_header; | |
872 | hs_header->frame_length = sizeof(*hs_page4) - 4; | |
873 | memset(hs_header->frame_content, 0, hs_header->frame_length); | |
874 | hs_page4->ib_baseaddr_l = lower_32_bits(mhba->ib_list_phys); | |
875 | hs_page4->ib_baseaddr_h = upper_32_bits(mhba->ib_list_phys); | |
876 | ||
877 | hs_page4->ob_baseaddr_l = lower_32_bits(mhba->ob_list_phys); | |
878 | hs_page4->ob_baseaddr_h = upper_32_bits(mhba->ob_list_phys); | |
879 | hs_page4->ib_entry_size = mhba->ib_max_size_setting; | |
880 | hs_page4->ob_entry_size = mhba->ob_max_size_setting; | |
bd756dde SF |
881 | if (mhba->hba_capability |
882 | & HS_CAPABILITY_NEW_PAGE_IO_DEPTH_DEF) { | |
883 | hs_page4->ob_depth = find_first_bit((unsigned long *) | |
884 | &mhba->list_num_io, | |
885 | BITS_PER_LONG); | |
886 | hs_page4->ib_depth = find_first_bit((unsigned long *) | |
887 | &mhba->list_num_io, | |
888 | BITS_PER_LONG); | |
889 | } else { | |
890 | hs_page4->ob_depth = (u8) mhba->list_num_io; | |
891 | hs_page4->ib_depth = (u8) mhba->list_num_io; | |
892 | } | |
f0c568a4 JL |
893 | hs_header->checksum = mvumi_calculate_checksum(hs_header, |
894 | hs_header->frame_length); | |
895 | break; | |
896 | ||
897 | default: | |
898 | dev_err(&mhba->pdev->dev, "cannot build page, code[0x%x]\n", | |
899 | hs_header->page_code); | |
900 | break; | |
901 | } | |
902 | } | |
903 | ||
904 | /** | |
905 | * mvumi_init_data - Initialize requested date for FW | |
906 | * @mhba: Adapter soft state | |
907 | */ | |
908 | static int mvumi_init_data(struct mvumi_hba *mhba) | |
909 | { | |
910 | struct mvumi_ob_data *ob_pool; | |
911 | struct mvumi_res *res_mgnt; | |
912 | unsigned int tmp_size, offset, i; | |
913 | void *virmem, *v; | |
914 | dma_addr_t p; | |
915 | ||
916 | if (mhba->fw_flag & MVUMI_FW_ALLOC) | |
917 | return 0; | |
918 | ||
919 | tmp_size = mhba->ib_max_size * mhba->max_io; | |
bd756dde SF |
920 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) |
921 | tmp_size += sizeof(struct mvumi_dyn_list_entry) * mhba->max_io; | |
922 | ||
f0c568a4 | 923 | tmp_size += 128 + mhba->ob_max_size * mhba->max_io; |
bd756dde | 924 | tmp_size += 8 + sizeof(u32)*2 + 16; |
f0c568a4 JL |
925 | |
926 | res_mgnt = mvumi_alloc_mem_resource(mhba, | |
927 | RESOURCE_UNCACHED_MEMORY, tmp_size); | |
928 | if (!res_mgnt) { | |
929 | dev_err(&mhba->pdev->dev, | |
930 | "failed to allocate memory for inbound list\n"); | |
931 | goto fail_alloc_dma_buf; | |
932 | } | |
933 | ||
934 | p = res_mgnt->bus_addr; | |
935 | v = res_mgnt->virt_addr; | |
936 | /* ib_list */ | |
937 | offset = round_up(p, 128) - p; | |
938 | p += offset; | |
939 | v += offset; | |
940 | mhba->ib_list = v; | |
941 | mhba->ib_list_phys = p; | |
bd756dde SF |
942 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) { |
943 | v += sizeof(struct mvumi_dyn_list_entry) * mhba->max_io; | |
944 | p += sizeof(struct mvumi_dyn_list_entry) * mhba->max_io; | |
945 | mhba->ib_frame = v; | |
946 | mhba->ib_frame_phys = p; | |
947 | } | |
f0c568a4 JL |
948 | v += mhba->ib_max_size * mhba->max_io; |
949 | p += mhba->ib_max_size * mhba->max_io; | |
bd756dde | 950 | |
f0c568a4 JL |
951 | /* ib shadow */ |
952 | offset = round_up(p, 8) - p; | |
953 | p += offset; | |
954 | v += offset; | |
955 | mhba->ib_shadow = v; | |
956 | mhba->ib_shadow_phys = p; | |
bd756dde SF |
957 | p += sizeof(u32)*2; |
958 | v += sizeof(u32)*2; | |
f0c568a4 | 959 | /* ob shadow */ |
bd756dde SF |
960 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9580) { |
961 | offset = round_up(p, 8) - p; | |
962 | p += offset; | |
963 | v += offset; | |
964 | mhba->ob_shadow = v; | |
965 | mhba->ob_shadow_phys = p; | |
966 | p += 8; | |
967 | v += 8; | |
968 | } else { | |
969 | offset = round_up(p, 4) - p; | |
970 | p += offset; | |
971 | v += offset; | |
972 | mhba->ob_shadow = v; | |
973 | mhba->ob_shadow_phys = p; | |
974 | p += 4; | |
975 | v += 4; | |
976 | } | |
f0c568a4 JL |
977 | |
978 | /* ob list */ | |
979 | offset = round_up(p, 128) - p; | |
980 | p += offset; | |
981 | v += offset; | |
982 | ||
983 | mhba->ob_list = v; | |
984 | mhba->ob_list_phys = p; | |
985 | ||
986 | /* ob data pool */ | |
987 | tmp_size = mhba->max_io * (mhba->ob_max_size + sizeof(*ob_pool)); | |
988 | tmp_size = round_up(tmp_size, 8); | |
989 | ||
990 | res_mgnt = mvumi_alloc_mem_resource(mhba, | |
991 | RESOURCE_CACHED_MEMORY, tmp_size); | |
992 | if (!res_mgnt) { | |
993 | dev_err(&mhba->pdev->dev, | |
994 | "failed to allocate memory for outbound data buffer\n"); | |
995 | goto fail_alloc_dma_buf; | |
996 | } | |
997 | virmem = res_mgnt->virt_addr; | |
998 | ||
999 | for (i = mhba->max_io; i != 0; i--) { | |
1000 | ob_pool = (struct mvumi_ob_data *) virmem; | |
1001 | list_add_tail(&ob_pool->list, &mhba->ob_data_list); | |
1002 | virmem += mhba->ob_max_size + sizeof(*ob_pool); | |
1003 | } | |
1004 | ||
1005 | tmp_size = sizeof(unsigned short) * mhba->max_io + | |
1006 | sizeof(struct mvumi_cmd *) * mhba->max_io; | |
1007 | tmp_size += round_up(mhba->max_target_id, sizeof(unsigned char) * 8) / | |
1008 | (sizeof(unsigned char) * 8); | |
1009 | ||
1010 | res_mgnt = mvumi_alloc_mem_resource(mhba, | |
1011 | RESOURCE_CACHED_MEMORY, tmp_size); | |
1012 | if (!res_mgnt) { | |
1013 | dev_err(&mhba->pdev->dev, | |
1014 | "failed to allocate memory for tag and target map\n"); | |
1015 | goto fail_alloc_dma_buf; | |
1016 | } | |
1017 | ||
1018 | virmem = res_mgnt->virt_addr; | |
1019 | mhba->tag_pool.stack = virmem; | |
1020 | mhba->tag_pool.size = mhba->max_io; | |
1021 | tag_init(&mhba->tag_pool, mhba->max_io); | |
1022 | virmem += sizeof(unsigned short) * mhba->max_io; | |
1023 | ||
1024 | mhba->tag_cmd = virmem; | |
1025 | virmem += sizeof(struct mvumi_cmd *) * mhba->max_io; | |
1026 | ||
1027 | mhba->target_map = virmem; | |
1028 | ||
1029 | mhba->fw_flag |= MVUMI_FW_ALLOC; | |
1030 | return 0; | |
1031 | ||
1032 | fail_alloc_dma_buf: | |
1033 | mvumi_release_mem_resource(mhba); | |
1034 | return -1; | |
1035 | } | |
1036 | ||
1037 | static int mvumi_hs_process_page(struct mvumi_hba *mhba, | |
1038 | struct mvumi_hs_header *hs_header) | |
1039 | { | |
1040 | struct mvumi_hs_page1 *hs_page1; | |
1041 | unsigned char page_checksum; | |
1042 | ||
1043 | page_checksum = mvumi_calculate_checksum(hs_header, | |
1044 | hs_header->frame_length); | |
1045 | if (page_checksum != hs_header->checksum) { | |
1046 | dev_err(&mhba->pdev->dev, "checksum error\n"); | |
1047 | return -1; | |
1048 | } | |
1049 | ||
1050 | switch (hs_header->page_code) { | |
1051 | case HS_PAGE_FIRM_CAP: | |
1052 | hs_page1 = (struct mvumi_hs_page1 *) hs_header; | |
1053 | ||
1054 | mhba->max_io = hs_page1->max_io_support; | |
1055 | mhba->list_num_io = hs_page1->cl_inout_list_depth; | |
1056 | mhba->max_transfer_size = hs_page1->max_transfer_size; | |
1057 | mhba->max_target_id = hs_page1->max_devices_support; | |
1058 | mhba->hba_capability = hs_page1->capability; | |
1059 | mhba->ib_max_size_setting = hs_page1->cl_in_max_entry_size; | |
1060 | mhba->ib_max_size = (1 << hs_page1->cl_in_max_entry_size) << 2; | |
1061 | ||
1062 | mhba->ob_max_size_setting = hs_page1->cl_out_max_entry_size; | |
1063 | mhba->ob_max_size = (1 << hs_page1->cl_out_max_entry_size) << 2; | |
1064 | ||
1065 | dev_dbg(&mhba->pdev->dev, "FW version:%d\n", | |
1066 | hs_page1->fw_ver.ver_build); | |
1067 | ||
bd756dde SF |
1068 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG) |
1069 | mhba->eot_flag = 22; | |
1070 | else | |
1071 | mhba->eot_flag = 27; | |
1072 | if (mhba->hba_capability & HS_CAPABILITY_NEW_PAGE_IO_DEPTH_DEF) | |
1073 | mhba->list_num_io = 1 << hs_page1->cl_inout_list_depth; | |
f0c568a4 JL |
1074 | break; |
1075 | default: | |
1076 | dev_err(&mhba->pdev->dev, "handshake: page code error\n"); | |
1077 | return -1; | |
1078 | } | |
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | /** | |
1083 | * mvumi_handshake - Move the FW to READY state | |
1084 | * @mhba: Adapter soft state | |
1085 | * | |
1086 | * During the initialization, FW passes can potentially be in any one of | |
1087 | * several possible states. If the FW in operational, waiting-for-handshake | |
1088 | * states, driver must take steps to bring it to ready state. Otherwise, it | |
1089 | * has to wait for the ready state. | |
1090 | */ | |
1091 | static int mvumi_handshake(struct mvumi_hba *mhba) | |
1092 | { | |
1093 | unsigned int hs_state, tmp, hs_fun; | |
1094 | struct mvumi_hs_header *hs_header; | |
bd756dde | 1095 | struct mvumi_hw_regs *regs = mhba->regs; |
f0c568a4 JL |
1096 | |
1097 | if (mhba->fw_state == FW_STATE_STARTING) | |
1098 | hs_state = HS_S_START; | |
1099 | else { | |
bd756dde | 1100 | tmp = ioread32(regs->arm_to_pciea_msg0); |
f0c568a4 JL |
1101 | hs_state = HS_GET_STATE(tmp); |
1102 | dev_dbg(&mhba->pdev->dev, "handshake state[0x%x].\n", hs_state); | |
1103 | if (HS_GET_STATUS(tmp) != HS_STATUS_OK) { | |
1104 | mhba->fw_state = FW_STATE_STARTING; | |
1105 | return -1; | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | hs_fun = 0; | |
1110 | switch (hs_state) { | |
1111 | case HS_S_START: | |
1112 | mhba->fw_state = FW_STATE_HANDSHAKING; | |
1113 | HS_SET_STATUS(hs_fun, HS_STATUS_OK); | |
1114 | HS_SET_STATE(hs_fun, HS_S_RESET); | |
bd756dde SF |
1115 | iowrite32(HANDSHAKE_SIGNATURE, regs->pciea_to_arm_msg1); |
1116 | iowrite32(hs_fun, regs->pciea_to_arm_msg0); | |
1117 | iowrite32(DRBL_HANDSHAKE, regs->pciea_to_arm_drbl_reg); | |
f0c568a4 JL |
1118 | break; |
1119 | ||
1120 | case HS_S_RESET: | |
1121 | iowrite32(lower_32_bits(mhba->handshake_page_phys), | |
bd756dde | 1122 | regs->pciea_to_arm_msg1); |
f0c568a4 | 1123 | iowrite32(upper_32_bits(mhba->handshake_page_phys), |
bd756dde | 1124 | regs->arm_to_pciea_msg1); |
f0c568a4 JL |
1125 | HS_SET_STATUS(hs_fun, HS_STATUS_OK); |
1126 | HS_SET_STATE(hs_fun, HS_S_PAGE_ADDR); | |
bd756dde SF |
1127 | iowrite32(hs_fun, regs->pciea_to_arm_msg0); |
1128 | iowrite32(DRBL_HANDSHAKE, regs->pciea_to_arm_drbl_reg); | |
f0c568a4 JL |
1129 | break; |
1130 | ||
1131 | case HS_S_PAGE_ADDR: | |
1132 | case HS_S_QUERY_PAGE: | |
1133 | case HS_S_SEND_PAGE: | |
1134 | hs_header = (struct mvumi_hs_header *) mhba->handshake_page; | |
1135 | if (hs_header->page_code == HS_PAGE_FIRM_CAP) { | |
1136 | mhba->hba_total_pages = | |
1137 | ((struct mvumi_hs_page1 *) hs_header)->total_pages; | |
1138 | ||
1139 | if (mhba->hba_total_pages == 0) | |
1140 | mhba->hba_total_pages = HS_PAGE_TOTAL-1; | |
1141 | } | |
1142 | ||
1143 | if (hs_state == HS_S_QUERY_PAGE) { | |
1144 | if (mvumi_hs_process_page(mhba, hs_header)) { | |
1145 | HS_SET_STATE(hs_fun, HS_S_ABORT); | |
1146 | return -1; | |
1147 | } | |
1148 | if (mvumi_init_data(mhba)) { | |
1149 | HS_SET_STATE(hs_fun, HS_S_ABORT); | |
1150 | return -1; | |
1151 | } | |
1152 | } else if (hs_state == HS_S_PAGE_ADDR) { | |
1153 | hs_header->page_code = 0; | |
1154 | mhba->hba_total_pages = HS_PAGE_TOTAL-1; | |
1155 | } | |
1156 | ||
1157 | if ((hs_header->page_code + 1) <= mhba->hba_total_pages) { | |
1158 | hs_header->page_code++; | |
1159 | if (hs_header->page_code != HS_PAGE_FIRM_CAP) { | |
1160 | mvumi_hs_build_page(mhba, hs_header); | |
1161 | HS_SET_STATE(hs_fun, HS_S_SEND_PAGE); | |
1162 | } else | |
1163 | HS_SET_STATE(hs_fun, HS_S_QUERY_PAGE); | |
1164 | } else | |
1165 | HS_SET_STATE(hs_fun, HS_S_END); | |
1166 | ||
1167 | HS_SET_STATUS(hs_fun, HS_STATUS_OK); | |
bd756dde SF |
1168 | iowrite32(hs_fun, regs->pciea_to_arm_msg0); |
1169 | iowrite32(DRBL_HANDSHAKE, regs->pciea_to_arm_drbl_reg); | |
f0c568a4 JL |
1170 | break; |
1171 | ||
1172 | case HS_S_END: | |
1173 | /* Set communication list ISR */ | |
bd756dde SF |
1174 | tmp = ioread32(regs->enpointa_mask_reg); |
1175 | tmp |= regs->int_comaout | regs->int_comaerr; | |
1176 | iowrite32(tmp, regs->enpointa_mask_reg); | |
f0c568a4 | 1177 | iowrite32(mhba->list_num_io, mhba->ib_shadow); |
59e13d48 | 1178 | /* Set InBound List Available count shadow */ |
f0c568a4 | 1179 | iowrite32(lower_32_bits(mhba->ib_shadow_phys), |
bd756dde | 1180 | regs->inb_aval_count_basel); |
f0c568a4 | 1181 | iowrite32(upper_32_bits(mhba->ib_shadow_phys), |
bd756dde SF |
1182 | regs->inb_aval_count_baseh); |
1183 | ||
1184 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9143) { | |
1185 | /* Set OutBound List Available count shadow */ | |
1186 | iowrite32((mhba->list_num_io-1) | | |
1187 | regs->cl_pointer_toggle, | |
1188 | mhba->ob_shadow); | |
1189 | iowrite32(lower_32_bits(mhba->ob_shadow_phys), | |
1190 | regs->outb_copy_basel); | |
1191 | iowrite32(upper_32_bits(mhba->ob_shadow_phys), | |
1192 | regs->outb_copy_baseh); | |
1193 | } | |
f0c568a4 | 1194 | |
bd756dde SF |
1195 | mhba->ib_cur_slot = (mhba->list_num_io - 1) | |
1196 | regs->cl_pointer_toggle; | |
1197 | mhba->ob_cur_slot = (mhba->list_num_io - 1) | | |
1198 | regs->cl_pointer_toggle; | |
f0c568a4 JL |
1199 | mhba->fw_state = FW_STATE_STARTED; |
1200 | ||
1201 | break; | |
1202 | default: | |
1203 | dev_err(&mhba->pdev->dev, "unknown handshake state [0x%x].\n", | |
1204 | hs_state); | |
1205 | return -1; | |
1206 | } | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static unsigned char mvumi_handshake_event(struct mvumi_hba *mhba) | |
1211 | { | |
1212 | unsigned int isr_status; | |
1213 | unsigned long before; | |
1214 | ||
1215 | before = jiffies; | |
1216 | mvumi_handshake(mhba); | |
1217 | do { | |
bd756dde | 1218 | isr_status = mhba->instancet->read_fw_status_reg(mhba); |
f0c568a4 JL |
1219 | |
1220 | if (mhba->fw_state == FW_STATE_STARTED) | |
1221 | return 0; | |
1222 | if (time_after(jiffies, before + FW_MAX_DELAY * HZ)) { | |
1223 | dev_err(&mhba->pdev->dev, | |
1224 | "no handshake response at state 0x%x.\n", | |
1225 | mhba->fw_state); | |
1226 | dev_err(&mhba->pdev->dev, | |
1227 | "isr : global=0x%x,status=0x%x.\n", | |
1228 | mhba->global_isr, isr_status); | |
1229 | return -1; | |
1230 | } | |
1231 | rmb(); | |
1232 | usleep_range(1000, 2000); | |
1233 | } while (!(isr_status & DRBL_HANDSHAKE_ISR)); | |
1234 | ||
1235 | return 0; | |
1236 | } | |
1237 | ||
1238 | static unsigned char mvumi_check_handshake(struct mvumi_hba *mhba) | |
1239 | { | |
f0c568a4 JL |
1240 | unsigned int tmp; |
1241 | unsigned long before; | |
1242 | ||
1243 | before = jiffies; | |
bd756dde | 1244 | tmp = ioread32(mhba->regs->arm_to_pciea_msg1); |
f0c568a4 JL |
1245 | while ((tmp != HANDSHAKE_READYSTATE) && (tmp != HANDSHAKE_DONESTATE)) { |
1246 | if (tmp != HANDSHAKE_READYSTATE) | |
1247 | iowrite32(DRBL_MU_RESET, | |
bd756dde | 1248 | mhba->regs->pciea_to_arm_drbl_reg); |
f0c568a4 JL |
1249 | if (time_after(jiffies, before + FW_MAX_DELAY * HZ)) { |
1250 | dev_err(&mhba->pdev->dev, | |
1251 | "invalid signature [0x%x].\n", tmp); | |
1252 | return -1; | |
1253 | } | |
1254 | usleep_range(1000, 2000); | |
1255 | rmb(); | |
bd756dde | 1256 | tmp = ioread32(mhba->regs->arm_to_pciea_msg1); |
f0c568a4 JL |
1257 | } |
1258 | ||
1259 | mhba->fw_state = FW_STATE_STARTING; | |
1260 | dev_dbg(&mhba->pdev->dev, "start firmware handshake...\n"); | |
1261 | do { | |
1262 | if (mvumi_handshake_event(mhba)) { | |
1263 | dev_err(&mhba->pdev->dev, | |
1264 | "handshake failed at state 0x%x.\n", | |
1265 | mhba->fw_state); | |
1266 | return -1; | |
1267 | } | |
1268 | } while (mhba->fw_state != FW_STATE_STARTED); | |
1269 | ||
1270 | dev_dbg(&mhba->pdev->dev, "firmware handshake done\n"); | |
1271 | ||
1272 | return 0; | |
1273 | } | |
1274 | ||
1275 | static unsigned char mvumi_start(struct mvumi_hba *mhba) | |
1276 | { | |
f0c568a4 | 1277 | unsigned int tmp; |
bd756dde SF |
1278 | struct mvumi_hw_regs *regs = mhba->regs; |
1279 | ||
f0c568a4 | 1280 | /* clear Door bell */ |
bd756dde SF |
1281 | tmp = ioread32(regs->arm_to_pciea_drbl_reg); |
1282 | iowrite32(tmp, regs->arm_to_pciea_drbl_reg); | |
f0c568a4 | 1283 | |
bd756dde SF |
1284 | iowrite32(regs->int_drbl_int_mask, regs->arm_to_pciea_mask_reg); |
1285 | tmp = ioread32(regs->enpointa_mask_reg) | regs->int_dl_cpu2pciea; | |
1286 | iowrite32(tmp, regs->enpointa_mask_reg); | |
1287 | msleep(100); | |
f0c568a4 JL |
1288 | if (mvumi_check_handshake(mhba)) |
1289 | return -1; | |
1290 | ||
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | /** | |
1295 | * mvumi_complete_cmd - Completes a command | |
1296 | * @mhba: Adapter soft state | |
1297 | * @cmd: Command to be completed | |
5ccd6265 | 1298 | * @ob_frame: Command response |
f0c568a4 JL |
1299 | */ |
1300 | static void mvumi_complete_cmd(struct mvumi_hba *mhba, struct mvumi_cmd *cmd, | |
1301 | struct mvumi_rsp_frame *ob_frame) | |
1302 | { | |
1303 | struct scsi_cmnd *scmd = cmd->scmd; | |
1304 | ||
1305 | cmd->scmd->SCp.ptr = NULL; | |
1306 | scmd->result = ob_frame->req_status; | |
1307 | ||
1308 | switch (ob_frame->req_status) { | |
1309 | case SAM_STAT_GOOD: | |
1310 | scmd->result |= DID_OK << 16; | |
1311 | break; | |
1312 | case SAM_STAT_BUSY: | |
1313 | scmd->result |= DID_BUS_BUSY << 16; | |
1314 | break; | |
1315 | case SAM_STAT_CHECK_CONDITION: | |
1316 | scmd->result |= (DID_OK << 16); | |
1317 | if (ob_frame->rsp_flag & CL_RSP_FLAG_SENSEDATA) { | |
1318 | memcpy(cmd->scmd->sense_buffer, ob_frame->payload, | |
1319 | sizeof(struct mvumi_sense_data)); | |
1320 | scmd->result |= (DRIVER_SENSE << 24); | |
1321 | } | |
1322 | break; | |
1323 | default: | |
1324 | scmd->result |= (DRIVER_INVALID << 24) | (DID_ABORT << 16); | |
1325 | break; | |
1326 | } | |
1327 | ||
4bd13a07 | 1328 | if (scsi_bufflen(scmd)) |
ab8e7f4b | 1329 | dma_unmap_sg(&mhba->pdev->dev, scsi_sglist(scmd), |
4bd13a07 | 1330 | scsi_sg_count(scmd), |
ab8e7f4b | 1331 | scmd->sc_data_direction); |
f0c568a4 JL |
1332 | cmd->scmd->scsi_done(scmd); |
1333 | mvumi_return_cmd(mhba, cmd); | |
1334 | } | |
bd756dde | 1335 | |
f0c568a4 JL |
1336 | static void mvumi_complete_internal_cmd(struct mvumi_hba *mhba, |
1337 | struct mvumi_cmd *cmd, | |
1338 | struct mvumi_rsp_frame *ob_frame) | |
1339 | { | |
1340 | if (atomic_read(&cmd->sync_cmd)) { | |
1341 | cmd->cmd_status = ob_frame->req_status; | |
1342 | ||
1343 | if ((ob_frame->req_status == SAM_STAT_CHECK_CONDITION) && | |
1344 | (ob_frame->rsp_flag & CL_RSP_FLAG_SENSEDATA) && | |
1345 | cmd->data_buf) { | |
1346 | memcpy(cmd->data_buf, ob_frame->payload, | |
1347 | sizeof(struct mvumi_sense_data)); | |
1348 | } | |
1349 | atomic_dec(&cmd->sync_cmd); | |
1350 | wake_up(&mhba->int_cmd_wait_q); | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | static void mvumi_show_event(struct mvumi_hba *mhba, | |
1355 | struct mvumi_driver_event *ptr) | |
1356 | { | |
1357 | unsigned int i; | |
1358 | ||
1359 | dev_warn(&mhba->pdev->dev, | |
1360 | "Event[0x%x] id[0x%x] severity[0x%x] device id[0x%x]\n", | |
1361 | ptr->sequence_no, ptr->event_id, ptr->severity, ptr->device_id); | |
1362 | if (ptr->param_count) { | |
1363 | printk(KERN_WARNING "Event param(len 0x%x): ", | |
1364 | ptr->param_count); | |
1365 | for (i = 0; i < ptr->param_count; i++) | |
1366 | printk(KERN_WARNING "0x%x ", ptr->params[i]); | |
1367 | ||
1368 | printk(KERN_WARNING "\n"); | |
1369 | } | |
1370 | ||
1371 | if (ptr->sense_data_length) { | |
1372 | printk(KERN_WARNING "Event sense data(len 0x%x): ", | |
1373 | ptr->sense_data_length); | |
1374 | for (i = 0; i < ptr->sense_data_length; i++) | |
1375 | printk(KERN_WARNING "0x%x ", ptr->sense_data[i]); | |
1376 | printk(KERN_WARNING "\n"); | |
1377 | } | |
1378 | } | |
1379 | ||
bd756dde SF |
1380 | static int mvumi_handle_hotplug(struct mvumi_hba *mhba, u16 devid, int status) |
1381 | { | |
1382 | struct scsi_device *sdev; | |
1383 | int ret = -1; | |
1384 | ||
1385 | if (status == DEVICE_OFFLINE) { | |
1386 | sdev = scsi_device_lookup(mhba->shost, 0, devid, 0); | |
1387 | if (sdev) { | |
1388 | dev_dbg(&mhba->pdev->dev, "remove disk %d-%d-%d.\n", 0, | |
1389 | sdev->id, 0); | |
1390 | scsi_remove_device(sdev); | |
1391 | scsi_device_put(sdev); | |
1392 | ret = 0; | |
1393 | } else | |
1394 | dev_err(&mhba->pdev->dev, " no disk[%d] to remove\n", | |
1395 | devid); | |
1396 | } else if (status == DEVICE_ONLINE) { | |
1397 | sdev = scsi_device_lookup(mhba->shost, 0, devid, 0); | |
1398 | if (!sdev) { | |
1399 | scsi_add_device(mhba->shost, 0, devid, 0); | |
1400 | dev_dbg(&mhba->pdev->dev, " add disk %d-%d-%d.\n", 0, | |
1401 | devid, 0); | |
1402 | ret = 0; | |
1403 | } else { | |
1404 | dev_err(&mhba->pdev->dev, " don't add disk %d-%d-%d.\n", | |
1405 | 0, devid, 0); | |
1406 | scsi_device_put(sdev); | |
1407 | } | |
1408 | } | |
1409 | return ret; | |
1410 | } | |
1411 | ||
1412 | static u64 mvumi_inquiry(struct mvumi_hba *mhba, | |
1413 | unsigned int id, struct mvumi_cmd *cmd) | |
1414 | { | |
1415 | struct mvumi_msg_frame *frame; | |
1416 | u64 wwid = 0; | |
1417 | int cmd_alloc = 0; | |
1418 | int data_buf_len = 64; | |
1419 | ||
1420 | if (!cmd) { | |
1421 | cmd = mvumi_create_internal_cmd(mhba, data_buf_len); | |
1422 | if (cmd) | |
1423 | cmd_alloc = 1; | |
1424 | else | |
1425 | return 0; | |
1426 | } else { | |
1427 | memset(cmd->data_buf, 0, data_buf_len); | |
1428 | } | |
1429 | cmd->scmd = NULL; | |
1430 | cmd->cmd_status = REQ_STATUS_PENDING; | |
1431 | atomic_set(&cmd->sync_cmd, 0); | |
1432 | frame = cmd->frame; | |
1433 | frame->device_id = (u16) id; | |
1434 | frame->cmd_flag = CMD_FLAG_DATA_IN; | |
1435 | frame->req_function = CL_FUN_SCSI_CMD; | |
1436 | frame->cdb_length = 6; | |
1437 | frame->data_transfer_length = MVUMI_INQUIRY_LENGTH; | |
1438 | memset(frame->cdb, 0, frame->cdb_length); | |
1439 | frame->cdb[0] = INQUIRY; | |
1440 | frame->cdb[4] = frame->data_transfer_length; | |
1441 | ||
1442 | mvumi_issue_blocked_cmd(mhba, cmd); | |
1443 | ||
1444 | if (cmd->cmd_status == SAM_STAT_GOOD) { | |
1445 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9143) | |
1446 | wwid = id + 1; | |
1447 | else | |
1448 | memcpy((void *)&wwid, | |
1449 | (cmd->data_buf + MVUMI_INQUIRY_UUID_OFF), | |
1450 | MVUMI_INQUIRY_UUID_LEN); | |
1451 | dev_dbg(&mhba->pdev->dev, | |
1452 | "inquiry device(0:%d:0) wwid(%llx)\n", id, wwid); | |
1453 | } else { | |
1454 | wwid = 0; | |
1455 | } | |
1456 | if (cmd_alloc) | |
1457 | mvumi_delete_internal_cmd(mhba, cmd); | |
1458 | ||
1459 | return wwid; | |
1460 | } | |
1461 | ||
1462 | static void mvumi_detach_devices(struct mvumi_hba *mhba) | |
1463 | { | |
1464 | struct mvumi_device *mv_dev = NULL , *dev_next; | |
1465 | struct scsi_device *sdev = NULL; | |
1466 | ||
1467 | mutex_lock(&mhba->device_lock); | |
1468 | ||
1469 | /* detach Hard Disk */ | |
1470 | list_for_each_entry_safe(mv_dev, dev_next, | |
1471 | &mhba->shost_dev_list, list) { | |
1472 | mvumi_handle_hotplug(mhba, mv_dev->id, DEVICE_OFFLINE); | |
1473 | list_del_init(&mv_dev->list); | |
1474 | dev_dbg(&mhba->pdev->dev, "release device(0:%d:0) wwid(%llx)\n", | |
1475 | mv_dev->id, mv_dev->wwid); | |
1476 | kfree(mv_dev); | |
1477 | } | |
1478 | list_for_each_entry_safe(mv_dev, dev_next, &mhba->mhba_dev_list, list) { | |
1479 | list_del_init(&mv_dev->list); | |
1480 | dev_dbg(&mhba->pdev->dev, "release device(0:%d:0) wwid(%llx)\n", | |
1481 | mv_dev->id, mv_dev->wwid); | |
1482 | kfree(mv_dev); | |
1483 | } | |
1484 | ||
1485 | /* detach virtual device */ | |
1486 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9580) | |
1487 | sdev = scsi_device_lookup(mhba->shost, 0, | |
1488 | mhba->max_target_id - 1, 0); | |
1489 | ||
1490 | if (sdev) { | |
1491 | scsi_remove_device(sdev); | |
1492 | scsi_device_put(sdev); | |
1493 | } | |
1494 | ||
1495 | mutex_unlock(&mhba->device_lock); | |
1496 | } | |
1497 | ||
1498 | static void mvumi_rescan_devices(struct mvumi_hba *mhba, int id) | |
1499 | { | |
1500 | struct scsi_device *sdev; | |
1501 | ||
1502 | sdev = scsi_device_lookup(mhba->shost, 0, id, 0); | |
1503 | if (sdev) { | |
1504 | scsi_rescan_device(&sdev->sdev_gendev); | |
1505 | scsi_device_put(sdev); | |
1506 | } | |
1507 | } | |
1508 | ||
1509 | static int mvumi_match_devices(struct mvumi_hba *mhba, int id, u64 wwid) | |
1510 | { | |
1511 | struct mvumi_device *mv_dev = NULL; | |
1512 | ||
1513 | list_for_each_entry(mv_dev, &mhba->shost_dev_list, list) { | |
1514 | if (mv_dev->wwid == wwid) { | |
1515 | if (mv_dev->id != id) { | |
1516 | dev_err(&mhba->pdev->dev, | |
1517 | "%s has same wwid[%llx] ," | |
1518 | " but different id[%d %d]\n", | |
1519 | __func__, mv_dev->wwid, mv_dev->id, id); | |
1520 | return -1; | |
1521 | } else { | |
1522 | if (mhba->pdev->device == | |
1523 | PCI_DEVICE_ID_MARVELL_MV9143) | |
1524 | mvumi_rescan_devices(mhba, id); | |
1525 | return 1; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | return 0; | |
1530 | } | |
1531 | ||
1532 | static void mvumi_remove_devices(struct mvumi_hba *mhba, int id) | |
1533 | { | |
1534 | struct mvumi_device *mv_dev = NULL, *dev_next; | |
1535 | ||
1536 | list_for_each_entry_safe(mv_dev, dev_next, | |
1537 | &mhba->shost_dev_list, list) { | |
1538 | if (mv_dev->id == id) { | |
1539 | dev_dbg(&mhba->pdev->dev, | |
1540 | "detach device(0:%d:0) wwid(%llx) from HOST\n", | |
1541 | mv_dev->id, mv_dev->wwid); | |
1542 | mvumi_handle_hotplug(mhba, mv_dev->id, DEVICE_OFFLINE); | |
1543 | list_del_init(&mv_dev->list); | |
1544 | kfree(mv_dev); | |
1545 | } | |
1546 | } | |
1547 | } | |
1548 | ||
1549 | static int mvumi_probe_devices(struct mvumi_hba *mhba) | |
1550 | { | |
1551 | int id, maxid; | |
1552 | u64 wwid = 0; | |
1553 | struct mvumi_device *mv_dev = NULL; | |
1554 | struct mvumi_cmd *cmd = NULL; | |
1555 | int found = 0; | |
1556 | ||
1557 | cmd = mvumi_create_internal_cmd(mhba, 64); | |
1558 | if (!cmd) | |
1559 | return -1; | |
1560 | ||
1561 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9143) | |
1562 | maxid = mhba->max_target_id; | |
1563 | else | |
1564 | maxid = mhba->max_target_id - 1; | |
1565 | ||
1566 | for (id = 0; id < maxid; id++) { | |
1567 | wwid = mvumi_inquiry(mhba, id, cmd); | |
1568 | if (!wwid) { | |
1569 | /* device no response, remove it */ | |
1570 | mvumi_remove_devices(mhba, id); | |
1571 | } else { | |
1572 | /* device response, add it */ | |
1573 | found = mvumi_match_devices(mhba, id, wwid); | |
1574 | if (!found) { | |
1575 | mvumi_remove_devices(mhba, id); | |
1576 | mv_dev = kzalloc(sizeof(struct mvumi_device), | |
1577 | GFP_KERNEL); | |
1578 | if (!mv_dev) { | |
1579 | dev_err(&mhba->pdev->dev, | |
1580 | "%s alloc mv_dev failed\n", | |
1581 | __func__); | |
1582 | continue; | |
1583 | } | |
1584 | mv_dev->id = id; | |
1585 | mv_dev->wwid = wwid; | |
1586 | mv_dev->sdev = NULL; | |
1587 | INIT_LIST_HEAD(&mv_dev->list); | |
1588 | list_add_tail(&mv_dev->list, | |
1589 | &mhba->mhba_dev_list); | |
1590 | dev_dbg(&mhba->pdev->dev, | |
1591 | "probe a new device(0:%d:0)" | |
1592 | " wwid(%llx)\n", id, mv_dev->wwid); | |
1593 | } else if (found == -1) | |
1594 | return -1; | |
1595 | else | |
1596 | continue; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | if (cmd) | |
1601 | mvumi_delete_internal_cmd(mhba, cmd); | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | ||
1606 | static int mvumi_rescan_bus(void *data) | |
1607 | { | |
1608 | int ret = 0; | |
1609 | struct mvumi_hba *mhba = (struct mvumi_hba *) data; | |
1610 | struct mvumi_device *mv_dev = NULL , *dev_next; | |
1611 | ||
1612 | while (!kthread_should_stop()) { | |
1613 | ||
1614 | set_current_state(TASK_INTERRUPTIBLE); | |
1615 | if (!atomic_read(&mhba->pnp_count)) | |
1616 | schedule(); | |
1617 | msleep(1000); | |
1618 | atomic_set(&mhba->pnp_count, 0); | |
1619 | __set_current_state(TASK_RUNNING); | |
1620 | ||
1621 | mutex_lock(&mhba->device_lock); | |
1622 | ret = mvumi_probe_devices(mhba); | |
1623 | if (!ret) { | |
1624 | list_for_each_entry_safe(mv_dev, dev_next, | |
1625 | &mhba->mhba_dev_list, list) { | |
1626 | if (mvumi_handle_hotplug(mhba, mv_dev->id, | |
1627 | DEVICE_ONLINE)) { | |
1628 | dev_err(&mhba->pdev->dev, | |
1629 | "%s add device(0:%d:0) failed" | |
1630 | "wwid(%llx) has exist\n", | |
1631 | __func__, | |
1632 | mv_dev->id, mv_dev->wwid); | |
1633 | list_del_init(&mv_dev->list); | |
1634 | kfree(mv_dev); | |
1635 | } else { | |
1636 | list_move_tail(&mv_dev->list, | |
1637 | &mhba->shost_dev_list); | |
1638 | } | |
1639 | } | |
1640 | } | |
1641 | mutex_unlock(&mhba->device_lock); | |
1642 | } | |
1643 | return 0; | |
1644 | } | |
1645 | ||
1646 | static void mvumi_proc_msg(struct mvumi_hba *mhba, | |
1647 | struct mvumi_hotplug_event *param) | |
1648 | { | |
1649 | u16 size = param->size; | |
1650 | const unsigned long *ar_bitmap; | |
1651 | const unsigned long *re_bitmap; | |
1652 | int index; | |
1653 | ||
1654 | if (mhba->fw_flag & MVUMI_FW_ATTACH) { | |
1655 | index = -1; | |
1656 | ar_bitmap = (const unsigned long *) param->bitmap; | |
1657 | re_bitmap = (const unsigned long *) ¶m->bitmap[size >> 3]; | |
1658 | ||
1659 | mutex_lock(&mhba->sas_discovery_mutex); | |
1660 | do { | |
1661 | index = find_next_zero_bit(ar_bitmap, size, index + 1); | |
1662 | if (index >= size) | |
1663 | break; | |
1664 | mvumi_handle_hotplug(mhba, index, DEVICE_ONLINE); | |
1665 | } while (1); | |
1666 | ||
1667 | index = -1; | |
1668 | do { | |
1669 | index = find_next_zero_bit(re_bitmap, size, index + 1); | |
1670 | if (index >= size) | |
1671 | break; | |
1672 | mvumi_handle_hotplug(mhba, index, DEVICE_OFFLINE); | |
1673 | } while (1); | |
1674 | mutex_unlock(&mhba->sas_discovery_mutex); | |
1675 | } | |
1676 | } | |
1677 | ||
f0c568a4 JL |
1678 | static void mvumi_notification(struct mvumi_hba *mhba, u8 msg, void *buffer) |
1679 | { | |
1680 | if (msg == APICDB1_EVENT_GETEVENT) { | |
1681 | int i, count; | |
1682 | struct mvumi_driver_event *param = NULL; | |
1683 | struct mvumi_event_req *er = buffer; | |
1684 | count = er->count; | |
1685 | if (count > MAX_EVENTS_RETURNED) { | |
1686 | dev_err(&mhba->pdev->dev, "event count[0x%x] is bigger" | |
1687 | " than max event count[0x%x].\n", | |
1688 | count, MAX_EVENTS_RETURNED); | |
1689 | return; | |
1690 | } | |
1691 | for (i = 0; i < count; i++) { | |
1692 | param = &er->events[i]; | |
1693 | mvumi_show_event(mhba, param); | |
1694 | } | |
bd756dde SF |
1695 | } else if (msg == APICDB1_HOST_GETEVENT) { |
1696 | mvumi_proc_msg(mhba, buffer); | |
f0c568a4 JL |
1697 | } |
1698 | } | |
1699 | ||
1700 | static int mvumi_get_event(struct mvumi_hba *mhba, unsigned char msg) | |
1701 | { | |
1702 | struct mvumi_cmd *cmd; | |
1703 | struct mvumi_msg_frame *frame; | |
1704 | ||
1705 | cmd = mvumi_create_internal_cmd(mhba, 512); | |
1706 | if (!cmd) | |
1707 | return -1; | |
1708 | cmd->scmd = NULL; | |
1709 | cmd->cmd_status = REQ_STATUS_PENDING; | |
1710 | atomic_set(&cmd->sync_cmd, 0); | |
1711 | frame = cmd->frame; | |
1712 | frame->device_id = 0; | |
1713 | frame->cmd_flag = CMD_FLAG_DATA_IN; | |
1714 | frame->req_function = CL_FUN_SCSI_CMD; | |
1715 | frame->cdb_length = MAX_COMMAND_SIZE; | |
1716 | frame->data_transfer_length = sizeof(struct mvumi_event_req); | |
1717 | memset(frame->cdb, 0, MAX_COMMAND_SIZE); | |
1718 | frame->cdb[0] = APICDB0_EVENT; | |
1719 | frame->cdb[1] = msg; | |
1720 | mvumi_issue_blocked_cmd(mhba, cmd); | |
1721 | ||
1722 | if (cmd->cmd_status != SAM_STAT_GOOD) | |
1723 | dev_err(&mhba->pdev->dev, "get event failed, status=0x%x.\n", | |
1724 | cmd->cmd_status); | |
1725 | else | |
1726 | mvumi_notification(mhba, cmd->frame->cdb[1], cmd->data_buf); | |
1727 | ||
1728 | mvumi_delete_internal_cmd(mhba, cmd); | |
1729 | return 0; | |
1730 | } | |
1731 | ||
1732 | static void mvumi_scan_events(struct work_struct *work) | |
1733 | { | |
1734 | struct mvumi_events_wq *mu_ev = | |
1735 | container_of(work, struct mvumi_events_wq, work_q); | |
1736 | ||
1737 | mvumi_get_event(mu_ev->mhba, mu_ev->event); | |
1738 | kfree(mu_ev); | |
1739 | } | |
1740 | ||
bd756dde | 1741 | static void mvumi_launch_events(struct mvumi_hba *mhba, u32 isr_status) |
f0c568a4 JL |
1742 | { |
1743 | struct mvumi_events_wq *mu_ev; | |
1744 | ||
bd756dde SF |
1745 | while (isr_status & (DRBL_BUS_CHANGE | DRBL_EVENT_NOTIFY)) { |
1746 | if (isr_status & DRBL_BUS_CHANGE) { | |
1747 | atomic_inc(&mhba->pnp_count); | |
1748 | wake_up_process(mhba->dm_thread); | |
1749 | isr_status &= ~(DRBL_BUS_CHANGE); | |
1750 | continue; | |
1751 | } | |
1752 | ||
1753 | mu_ev = kzalloc(sizeof(*mu_ev), GFP_ATOMIC); | |
1754 | if (mu_ev) { | |
1755 | INIT_WORK(&mu_ev->work_q, mvumi_scan_events); | |
1756 | mu_ev->mhba = mhba; | |
1757 | mu_ev->event = APICDB1_EVENT_GETEVENT; | |
1758 | isr_status &= ~(DRBL_EVENT_NOTIFY); | |
1759 | mu_ev->param = NULL; | |
1760 | schedule_work(&mu_ev->work_q); | |
1761 | } | |
f0c568a4 JL |
1762 | } |
1763 | } | |
1764 | ||
1765 | static void mvumi_handle_clob(struct mvumi_hba *mhba) | |
1766 | { | |
1767 | struct mvumi_rsp_frame *ob_frame; | |
1768 | struct mvumi_cmd *cmd; | |
1769 | struct mvumi_ob_data *pool; | |
1770 | ||
1771 | while (!list_empty(&mhba->free_ob_list)) { | |
1772 | pool = list_first_entry(&mhba->free_ob_list, | |
1773 | struct mvumi_ob_data, list); | |
1774 | list_del_init(&pool->list); | |
1775 | list_add_tail(&pool->list, &mhba->ob_data_list); | |
1776 | ||
1777 | ob_frame = (struct mvumi_rsp_frame *) &pool->data[0]; | |
1778 | cmd = mhba->tag_cmd[ob_frame->tag]; | |
1779 | ||
1780 | atomic_dec(&mhba->fw_outstanding); | |
7512ddef | 1781 | mhba->tag_cmd[ob_frame->tag] = NULL; |
f0c568a4 JL |
1782 | tag_release_one(mhba, &mhba->tag_pool, ob_frame->tag); |
1783 | if (cmd->scmd) | |
1784 | mvumi_complete_cmd(mhba, cmd, ob_frame); | |
1785 | else | |
1786 | mvumi_complete_internal_cmd(mhba, cmd, ob_frame); | |
1787 | } | |
1788 | mhba->instancet->fire_cmd(mhba, NULL); | |
1789 | } | |
1790 | ||
1791 | static irqreturn_t mvumi_isr_handler(int irq, void *devp) | |
1792 | { | |
1793 | struct mvumi_hba *mhba = (struct mvumi_hba *) devp; | |
1794 | unsigned long flags; | |
1795 | ||
1796 | spin_lock_irqsave(mhba->shost->host_lock, flags); | |
1797 | if (unlikely(mhba->instancet->clear_intr(mhba) || !mhba->global_isr)) { | |
1798 | spin_unlock_irqrestore(mhba->shost->host_lock, flags); | |
1799 | return IRQ_NONE; | |
1800 | } | |
1801 | ||
bd756dde SF |
1802 | if (mhba->global_isr & mhba->regs->int_dl_cpu2pciea) { |
1803 | if (mhba->isr_status & (DRBL_BUS_CHANGE | DRBL_EVENT_NOTIFY)) | |
1804 | mvumi_launch_events(mhba, mhba->isr_status); | |
f0c568a4 JL |
1805 | if (mhba->isr_status & DRBL_HANDSHAKE_ISR) { |
1806 | dev_warn(&mhba->pdev->dev, "enter handshake again!\n"); | |
1807 | mvumi_handshake(mhba); | |
1808 | } | |
bd756dde | 1809 | |
f0c568a4 JL |
1810 | } |
1811 | ||
bd756dde | 1812 | if (mhba->global_isr & mhba->regs->int_comaout) |
f0c568a4 JL |
1813 | mvumi_receive_ob_list_entry(mhba); |
1814 | ||
1815 | mhba->global_isr = 0; | |
1816 | mhba->isr_status = 0; | |
1817 | if (mhba->fw_state == FW_STATE_STARTED) | |
1818 | mvumi_handle_clob(mhba); | |
1819 | spin_unlock_irqrestore(mhba->shost->host_lock, flags); | |
1820 | return IRQ_HANDLED; | |
1821 | } | |
1822 | ||
1823 | static enum mvumi_qc_result mvumi_send_command(struct mvumi_hba *mhba, | |
1824 | struct mvumi_cmd *cmd) | |
1825 | { | |
1826 | void *ib_entry; | |
1827 | struct mvumi_msg_frame *ib_frame; | |
1828 | unsigned int frame_len; | |
1829 | ||
1830 | ib_frame = cmd->frame; | |
1831 | if (unlikely(mhba->fw_state != FW_STATE_STARTED)) { | |
1832 | dev_dbg(&mhba->pdev->dev, "firmware not ready.\n"); | |
1833 | return MV_QUEUE_COMMAND_RESULT_NO_RESOURCE; | |
1834 | } | |
1835 | if (tag_is_empty(&mhba->tag_pool)) { | |
1836 | dev_dbg(&mhba->pdev->dev, "no free tag.\n"); | |
1837 | return MV_QUEUE_COMMAND_RESULT_NO_RESOURCE; | |
1838 | } | |
bd756dde | 1839 | mvumi_get_ib_list_entry(mhba, &ib_entry); |
f0c568a4 JL |
1840 | |
1841 | cmd->frame->tag = tag_get_one(mhba, &mhba->tag_pool); | |
1842 | cmd->frame->request_id = mhba->io_seq++; | |
1843 | cmd->request_id = cmd->frame->request_id; | |
1844 | mhba->tag_cmd[cmd->frame->tag] = cmd; | |
1845 | frame_len = sizeof(*ib_frame) - 4 + | |
1846 | ib_frame->sg_counts * sizeof(struct mvumi_sgl); | |
bd756dde SF |
1847 | if (mhba->hba_capability & HS_CAPABILITY_SUPPORT_DYN_SRC) { |
1848 | struct mvumi_dyn_list_entry *dle; | |
1849 | dle = ib_entry; | |
1850 | dle->src_low_addr = | |
1851 | cpu_to_le32(lower_32_bits(cmd->frame_phys)); | |
1852 | dle->src_high_addr = | |
1853 | cpu_to_le32(upper_32_bits(cmd->frame_phys)); | |
1854 | dle->if_length = (frame_len >> 2) & 0xFFF; | |
1855 | } else { | |
1856 | memcpy(ib_entry, ib_frame, frame_len); | |
1857 | } | |
f0c568a4 JL |
1858 | return MV_QUEUE_COMMAND_RESULT_SENT; |
1859 | } | |
1860 | ||
1861 | static void mvumi_fire_cmd(struct mvumi_hba *mhba, struct mvumi_cmd *cmd) | |
1862 | { | |
1863 | unsigned short num_of_cl_sent = 0; | |
bd756dde | 1864 | unsigned int count; |
f0c568a4 JL |
1865 | enum mvumi_qc_result result; |
1866 | ||
1867 | if (cmd) | |
1868 | list_add_tail(&cmd->queue_pointer, &mhba->waiting_req_list); | |
bd756dde SF |
1869 | count = mhba->instancet->check_ib_list(mhba); |
1870 | if (list_empty(&mhba->waiting_req_list) || !count) | |
1871 | return; | |
f0c568a4 | 1872 | |
bd756dde | 1873 | do { |
f0c568a4 | 1874 | cmd = list_first_entry(&mhba->waiting_req_list, |
bd756dde | 1875 | struct mvumi_cmd, queue_pointer); |
f0c568a4 JL |
1876 | list_del_init(&cmd->queue_pointer); |
1877 | result = mvumi_send_command(mhba, cmd); | |
1878 | switch (result) { | |
1879 | case MV_QUEUE_COMMAND_RESULT_SENT: | |
1880 | num_of_cl_sent++; | |
1881 | break; | |
1882 | case MV_QUEUE_COMMAND_RESULT_NO_RESOURCE: | |
1883 | list_add(&cmd->queue_pointer, &mhba->waiting_req_list); | |
1884 | if (num_of_cl_sent > 0) | |
1885 | mvumi_send_ib_list_entry(mhba); | |
1886 | ||
1887 | return; | |
1888 | } | |
bd756dde SF |
1889 | } while (!list_empty(&mhba->waiting_req_list) && count--); |
1890 | ||
f0c568a4 JL |
1891 | if (num_of_cl_sent > 0) |
1892 | mvumi_send_ib_list_entry(mhba); | |
1893 | } | |
1894 | ||
1895 | /** | |
1896 | * mvumi_enable_intr - Enables interrupts | |
bd756dde | 1897 | * @mhba: Adapter soft state |
f0c568a4 | 1898 | */ |
bd756dde | 1899 | static void mvumi_enable_intr(struct mvumi_hba *mhba) |
f0c568a4 JL |
1900 | { |
1901 | unsigned int mask; | |
bd756dde | 1902 | struct mvumi_hw_regs *regs = mhba->regs; |
f0c568a4 | 1903 | |
bd756dde SF |
1904 | iowrite32(regs->int_drbl_int_mask, regs->arm_to_pciea_mask_reg); |
1905 | mask = ioread32(regs->enpointa_mask_reg); | |
1906 | mask |= regs->int_dl_cpu2pciea | regs->int_comaout | regs->int_comaerr; | |
1907 | iowrite32(mask, regs->enpointa_mask_reg); | |
f0c568a4 JL |
1908 | } |
1909 | ||
1910 | /** | |
1911 | * mvumi_disable_intr -Disables interrupt | |
bd756dde | 1912 | * @mhba: Adapter soft state |
f0c568a4 | 1913 | */ |
bd756dde | 1914 | static void mvumi_disable_intr(struct mvumi_hba *mhba) |
f0c568a4 JL |
1915 | { |
1916 | unsigned int mask; | |
bd756dde | 1917 | struct mvumi_hw_regs *regs = mhba->regs; |
f0c568a4 | 1918 | |
bd756dde SF |
1919 | iowrite32(0, regs->arm_to_pciea_mask_reg); |
1920 | mask = ioread32(regs->enpointa_mask_reg); | |
1921 | mask &= ~(regs->int_dl_cpu2pciea | regs->int_comaout | | |
1922 | regs->int_comaerr); | |
1923 | iowrite32(mask, regs->enpointa_mask_reg); | |
f0c568a4 JL |
1924 | } |
1925 | ||
1926 | static int mvumi_clear_intr(void *extend) | |
1927 | { | |
1928 | struct mvumi_hba *mhba = (struct mvumi_hba *) extend; | |
1929 | unsigned int status, isr_status = 0, tmp = 0; | |
bd756dde | 1930 | struct mvumi_hw_regs *regs = mhba->regs; |
f0c568a4 | 1931 | |
bd756dde SF |
1932 | status = ioread32(regs->main_int_cause_reg); |
1933 | if (!(status & regs->int_mu) || status == 0xFFFFFFFF) | |
f0c568a4 | 1934 | return 1; |
bd756dde SF |
1935 | if (unlikely(status & regs->int_comaerr)) { |
1936 | tmp = ioread32(regs->outb_isr_cause); | |
1937 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9580) { | |
1938 | if (tmp & regs->clic_out_err) { | |
1939 | iowrite32(tmp & regs->clic_out_err, | |
1940 | regs->outb_isr_cause); | |
1941 | } | |
1942 | } else { | |
1943 | if (tmp & (regs->clic_in_err | regs->clic_out_err)) | |
1944 | iowrite32(tmp & (regs->clic_in_err | | |
1945 | regs->clic_out_err), | |
1946 | regs->outb_isr_cause); | |
1947 | } | |
1948 | status ^= mhba->regs->int_comaerr; | |
f0c568a4 JL |
1949 | /* inbound or outbound parity error, command will timeout */ |
1950 | } | |
bd756dde SF |
1951 | if (status & regs->int_comaout) { |
1952 | tmp = ioread32(regs->outb_isr_cause); | |
1953 | if (tmp & regs->clic_irq) | |
1954 | iowrite32(tmp & regs->clic_irq, regs->outb_isr_cause); | |
f0c568a4 | 1955 | } |
bd756dde SF |
1956 | if (status & regs->int_dl_cpu2pciea) { |
1957 | isr_status = ioread32(regs->arm_to_pciea_drbl_reg); | |
f0c568a4 | 1958 | if (isr_status) |
bd756dde | 1959 | iowrite32(isr_status, regs->arm_to_pciea_drbl_reg); |
f0c568a4 JL |
1960 | } |
1961 | ||
1962 | mhba->global_isr = status; | |
1963 | mhba->isr_status = isr_status; | |
1964 | ||
1965 | return 0; | |
1966 | } | |
1967 | ||
1968 | /** | |
1969 | * mvumi_read_fw_status_reg - returns the current FW status value | |
bd756dde | 1970 | * @mhba: Adapter soft state |
f0c568a4 | 1971 | */ |
bd756dde | 1972 | static unsigned int mvumi_read_fw_status_reg(struct mvumi_hba *mhba) |
f0c568a4 JL |
1973 | { |
1974 | unsigned int status; | |
1975 | ||
bd756dde | 1976 | status = ioread32(mhba->regs->arm_to_pciea_drbl_reg); |
f0c568a4 | 1977 | if (status) |
bd756dde | 1978 | iowrite32(status, mhba->regs->arm_to_pciea_drbl_reg); |
f0c568a4 JL |
1979 | return status; |
1980 | } | |
1981 | ||
bd756dde | 1982 | static struct mvumi_instance_template mvumi_instance_9143 = { |
f0c568a4 JL |
1983 | .fire_cmd = mvumi_fire_cmd, |
1984 | .enable_intr = mvumi_enable_intr, | |
1985 | .disable_intr = mvumi_disable_intr, | |
1986 | .clear_intr = mvumi_clear_intr, | |
1987 | .read_fw_status_reg = mvumi_read_fw_status_reg, | |
bd756dde SF |
1988 | .check_ib_list = mvumi_check_ib_list_9143, |
1989 | .check_ob_list = mvumi_check_ob_list_9143, | |
1990 | .reset_host = mvumi_reset_host_9143, | |
1991 | }; | |
1992 | ||
1993 | static struct mvumi_instance_template mvumi_instance_9580 = { | |
1994 | .fire_cmd = mvumi_fire_cmd, | |
1995 | .enable_intr = mvumi_enable_intr, | |
1996 | .disable_intr = mvumi_disable_intr, | |
1997 | .clear_intr = mvumi_clear_intr, | |
1998 | .read_fw_status_reg = mvumi_read_fw_status_reg, | |
1999 | .check_ib_list = mvumi_check_ib_list_9580, | |
2000 | .check_ob_list = mvumi_check_ob_list_9580, | |
2001 | .reset_host = mvumi_reset_host_9580, | |
f0c568a4 JL |
2002 | }; |
2003 | ||
2004 | static int mvumi_slave_configure(struct scsi_device *sdev) | |
2005 | { | |
2006 | struct mvumi_hba *mhba; | |
2007 | unsigned char bitcount = sizeof(unsigned char) * 8; | |
2008 | ||
2009 | mhba = (struct mvumi_hba *) sdev->host->hostdata; | |
2010 | if (sdev->id >= mhba->max_target_id) | |
2011 | return -EINVAL; | |
2012 | ||
2013 | mhba->target_map[sdev->id / bitcount] |= (1 << (sdev->id % bitcount)); | |
2014 | return 0; | |
2015 | } | |
2016 | ||
2017 | /** | |
2018 | * mvumi_build_frame - Prepares a direct cdb (DCDB) command | |
2019 | * @mhba: Adapter soft state | |
2020 | * @scmd: SCSI command | |
2021 | * @cmd: Command to be prepared in | |
2022 | * | |
2023 | * This function prepares CDB commands. These are typcially pass-through | |
2024 | * commands to the devices. | |
2025 | */ | |
2026 | static unsigned char mvumi_build_frame(struct mvumi_hba *mhba, | |
2027 | struct scsi_cmnd *scmd, struct mvumi_cmd *cmd) | |
2028 | { | |
2029 | struct mvumi_msg_frame *pframe; | |
2030 | ||
2031 | cmd->scmd = scmd; | |
2032 | cmd->cmd_status = REQ_STATUS_PENDING; | |
2033 | pframe = cmd->frame; | |
2034 | pframe->device_id = ((unsigned short) scmd->device->id) | | |
2035 | (((unsigned short) scmd->device->lun) << 8); | |
2036 | pframe->cmd_flag = 0; | |
2037 | ||
2038 | switch (scmd->sc_data_direction) { | |
2039 | case DMA_NONE: | |
2040 | pframe->cmd_flag |= CMD_FLAG_NON_DATA; | |
2041 | break; | |
2042 | case DMA_FROM_DEVICE: | |
2043 | pframe->cmd_flag |= CMD_FLAG_DATA_IN; | |
2044 | break; | |
2045 | case DMA_TO_DEVICE: | |
2046 | pframe->cmd_flag |= CMD_FLAG_DATA_OUT; | |
2047 | break; | |
2048 | case DMA_BIDIRECTIONAL: | |
2049 | default: | |
2050 | dev_warn(&mhba->pdev->dev, "unexpected data direction[%d] " | |
2051 | "cmd[0x%x]\n", scmd->sc_data_direction, scmd->cmnd[0]); | |
2052 | goto error; | |
2053 | } | |
2054 | ||
2055 | pframe->cdb_length = scmd->cmd_len; | |
2056 | memcpy(pframe->cdb, scmd->cmnd, pframe->cdb_length); | |
2057 | pframe->req_function = CL_FUN_SCSI_CMD; | |
2058 | if (scsi_bufflen(scmd)) { | |
2059 | if (mvumi_make_sgl(mhba, scmd, &pframe->payload[0], | |
2060 | &pframe->sg_counts)) | |
2061 | goto error; | |
2062 | ||
2063 | pframe->data_transfer_length = scsi_bufflen(scmd); | |
2064 | } else { | |
2065 | pframe->sg_counts = 0; | |
2066 | pframe->data_transfer_length = 0; | |
2067 | } | |
2068 | return 0; | |
2069 | ||
2070 | error: | |
2071 | scmd->result = (DID_OK << 16) | (DRIVER_SENSE << 24) | | |
2072 | SAM_STAT_CHECK_CONDITION; | |
2073 | scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x24, | |
2074 | 0); | |
2075 | return -1; | |
2076 | } | |
2077 | ||
2078 | /** | |
2079 | * mvumi_queue_command - Queue entry point | |
5ccd6265 | 2080 | * @shost: Scsi host to queue command on |
f0c568a4 | 2081 | * @scmd: SCSI command to be queued |
f0c568a4 JL |
2082 | */ |
2083 | static int mvumi_queue_command(struct Scsi_Host *shost, | |
2084 | struct scsi_cmnd *scmd) | |
2085 | { | |
2086 | struct mvumi_cmd *cmd; | |
2087 | struct mvumi_hba *mhba; | |
2088 | unsigned long irq_flags; | |
2089 | ||
2090 | spin_lock_irqsave(shost->host_lock, irq_flags); | |
f0c568a4 JL |
2091 | |
2092 | mhba = (struct mvumi_hba *) shost->hostdata; | |
2093 | scmd->result = 0; | |
2094 | cmd = mvumi_get_cmd(mhba); | |
2095 | if (unlikely(!cmd)) { | |
2096 | spin_unlock_irqrestore(shost->host_lock, irq_flags); | |
2097 | return SCSI_MLQUEUE_HOST_BUSY; | |
2098 | } | |
2099 | ||
2100 | if (unlikely(mvumi_build_frame(mhba, scmd, cmd))) | |
2101 | goto out_return_cmd; | |
2102 | ||
2103 | cmd->scmd = scmd; | |
2104 | scmd->SCp.ptr = (char *) cmd; | |
2105 | mhba->instancet->fire_cmd(mhba, cmd); | |
2106 | spin_unlock_irqrestore(shost->host_lock, irq_flags); | |
2107 | return 0; | |
2108 | ||
2109 | out_return_cmd: | |
2110 | mvumi_return_cmd(mhba, cmd); | |
2111 | scmd->scsi_done(scmd); | |
2112 | spin_unlock_irqrestore(shost->host_lock, irq_flags); | |
2113 | return 0; | |
2114 | } | |
2115 | ||
2116 | static enum blk_eh_timer_return mvumi_timed_out(struct scsi_cmnd *scmd) | |
2117 | { | |
2118 | struct mvumi_cmd *cmd = (struct mvumi_cmd *) scmd->SCp.ptr; | |
2119 | struct Scsi_Host *host = scmd->device->host; | |
2120 | struct mvumi_hba *mhba = shost_priv(host); | |
2121 | unsigned long flags; | |
2122 | ||
2123 | spin_lock_irqsave(mhba->shost->host_lock, flags); | |
2124 | ||
2125 | if (mhba->tag_cmd[cmd->frame->tag]) { | |
7512ddef | 2126 | mhba->tag_cmd[cmd->frame->tag] = NULL; |
f0c568a4 JL |
2127 | tag_release_one(mhba, &mhba->tag_pool, cmd->frame->tag); |
2128 | } | |
2129 | if (!list_empty(&cmd->queue_pointer)) | |
2130 | list_del_init(&cmd->queue_pointer); | |
2131 | else | |
2132 | atomic_dec(&mhba->fw_outstanding); | |
2133 | ||
2134 | scmd->result = (DRIVER_INVALID << 24) | (DID_ABORT << 16); | |
2135 | scmd->SCp.ptr = NULL; | |
2136 | if (scsi_bufflen(scmd)) { | |
ab8e7f4b | 2137 | dma_unmap_sg(&mhba->pdev->dev, scsi_sglist(scmd), |
4bd13a07 | 2138 | scsi_sg_count(scmd), |
ab8e7f4b | 2139 | scmd->sc_data_direction); |
f0c568a4 JL |
2140 | } |
2141 | mvumi_return_cmd(mhba, cmd); | |
2142 | spin_unlock_irqrestore(mhba->shost->host_lock, flags); | |
2143 | ||
6600593c | 2144 | return BLK_EH_DONE; |
f0c568a4 JL |
2145 | } |
2146 | ||
2147 | static int | |
2148 | mvumi_bios_param(struct scsi_device *sdev, struct block_device *bdev, | |
2149 | sector_t capacity, int geom[]) | |
2150 | { | |
2151 | int heads, sectors; | |
2152 | sector_t cylinders; | |
2153 | unsigned long tmp; | |
2154 | ||
2155 | heads = 64; | |
2156 | sectors = 32; | |
2157 | tmp = heads * sectors; | |
2158 | cylinders = capacity; | |
2159 | sector_div(cylinders, tmp); | |
2160 | ||
2161 | if (capacity >= 0x200000) { | |
2162 | heads = 255; | |
2163 | sectors = 63; | |
2164 | tmp = heads * sectors; | |
2165 | cylinders = capacity; | |
2166 | sector_div(cylinders, tmp); | |
2167 | } | |
2168 | geom[0] = heads; | |
2169 | geom[1] = sectors; | |
2170 | geom[2] = cylinders; | |
2171 | ||
2172 | return 0; | |
2173 | } | |
2174 | ||
2175 | static struct scsi_host_template mvumi_template = { | |
2176 | ||
2177 | .module = THIS_MODULE, | |
2178 | .name = "Marvell Storage Controller", | |
2179 | .slave_configure = mvumi_slave_configure, | |
2180 | .queuecommand = mvumi_queue_command, | |
103eb3b5 | 2181 | .eh_timed_out = mvumi_timed_out, |
f0c568a4 JL |
2182 | .eh_host_reset_handler = mvumi_host_reset, |
2183 | .bios_param = mvumi_bios_param, | |
4af14d11 | 2184 | .dma_boundary = PAGE_SIZE - 1, |
f0c568a4 JL |
2185 | .this_id = -1, |
2186 | }; | |
2187 | ||
bd756dde SF |
2188 | static int mvumi_cfg_hw_reg(struct mvumi_hba *mhba) |
2189 | { | |
2190 | void *base = NULL; | |
2191 | struct mvumi_hw_regs *regs; | |
2192 | ||
2193 | switch (mhba->pdev->device) { | |
2194 | case PCI_DEVICE_ID_MARVELL_MV9143: | |
2195 | mhba->mmio = mhba->base_addr[0]; | |
2196 | base = mhba->mmio; | |
2197 | if (!mhba->regs) { | |
2198 | mhba->regs = kzalloc(sizeof(*regs), GFP_KERNEL); | |
2199 | if (mhba->regs == NULL) | |
2200 | return -ENOMEM; | |
2201 | } | |
2202 | regs = mhba->regs; | |
2203 | ||
2204 | /* For Arm */ | |
2205 | regs->ctrl_sts_reg = base + 0x20104; | |
2206 | regs->rstoutn_mask_reg = base + 0x20108; | |
2207 | regs->sys_soft_rst_reg = base + 0x2010C; | |
2208 | regs->main_int_cause_reg = base + 0x20200; | |
2209 | regs->enpointa_mask_reg = base + 0x2020C; | |
2210 | regs->rstoutn_en_reg = base + 0xF1400; | |
2211 | /* For Doorbell */ | |
2212 | regs->pciea_to_arm_drbl_reg = base + 0x20400; | |
2213 | regs->arm_to_pciea_drbl_reg = base + 0x20408; | |
2214 | regs->arm_to_pciea_mask_reg = base + 0x2040C; | |
2215 | regs->pciea_to_arm_msg0 = base + 0x20430; | |
2216 | regs->pciea_to_arm_msg1 = base + 0x20434; | |
2217 | regs->arm_to_pciea_msg0 = base + 0x20438; | |
2218 | regs->arm_to_pciea_msg1 = base + 0x2043C; | |
2219 | ||
2220 | /* For Message Unit */ | |
2221 | ||
2222 | regs->inb_aval_count_basel = base + 0x508; | |
2223 | regs->inb_aval_count_baseh = base + 0x50C; | |
2224 | regs->inb_write_pointer = base + 0x518; | |
2225 | regs->inb_read_pointer = base + 0x51C; | |
2226 | regs->outb_coal_cfg = base + 0x568; | |
2227 | regs->outb_copy_basel = base + 0x5B0; | |
2228 | regs->outb_copy_baseh = base + 0x5B4; | |
2229 | regs->outb_copy_pointer = base + 0x544; | |
2230 | regs->outb_read_pointer = base + 0x548; | |
2231 | regs->outb_isr_cause = base + 0x560; | |
2232 | regs->outb_coal_cfg = base + 0x568; | |
2233 | /* Bit setting for HW */ | |
2234 | regs->int_comaout = 1 << 8; | |
2235 | regs->int_comaerr = 1 << 6; | |
2236 | regs->int_dl_cpu2pciea = 1 << 1; | |
2237 | regs->cl_pointer_toggle = 1 << 12; | |
2238 | regs->clic_irq = 1 << 1; | |
2239 | regs->clic_in_err = 1 << 8; | |
2240 | regs->clic_out_err = 1 << 12; | |
2241 | regs->cl_slot_num_mask = 0xFFF; | |
2242 | regs->int_drbl_int_mask = 0x3FFFFFFF; | |
2243 | regs->int_mu = regs->int_dl_cpu2pciea | regs->int_comaout | | |
2244 | regs->int_comaerr; | |
2245 | break; | |
2246 | case PCI_DEVICE_ID_MARVELL_MV9580: | |
2247 | mhba->mmio = mhba->base_addr[2]; | |
2248 | base = mhba->mmio; | |
2249 | if (!mhba->regs) { | |
2250 | mhba->regs = kzalloc(sizeof(*regs), GFP_KERNEL); | |
2251 | if (mhba->regs == NULL) | |
2252 | return -ENOMEM; | |
2253 | } | |
2254 | regs = mhba->regs; | |
2255 | /* For Arm */ | |
2256 | regs->ctrl_sts_reg = base + 0x20104; | |
2257 | regs->rstoutn_mask_reg = base + 0x1010C; | |
2258 | regs->sys_soft_rst_reg = base + 0x10108; | |
2259 | regs->main_int_cause_reg = base + 0x10200; | |
2260 | regs->enpointa_mask_reg = base + 0x1020C; | |
2261 | regs->rstoutn_en_reg = base + 0xF1400; | |
2262 | ||
2263 | /* For Doorbell */ | |
2264 | regs->pciea_to_arm_drbl_reg = base + 0x10460; | |
2265 | regs->arm_to_pciea_drbl_reg = base + 0x10480; | |
2266 | regs->arm_to_pciea_mask_reg = base + 0x10484; | |
2267 | regs->pciea_to_arm_msg0 = base + 0x10400; | |
2268 | regs->pciea_to_arm_msg1 = base + 0x10404; | |
2269 | regs->arm_to_pciea_msg0 = base + 0x10420; | |
2270 | regs->arm_to_pciea_msg1 = base + 0x10424; | |
2271 | ||
2272 | /* For reset*/ | |
2273 | regs->reset_request = base + 0x10108; | |
2274 | regs->reset_enable = base + 0x1010c; | |
2275 | ||
2276 | /* For Message Unit */ | |
2277 | regs->inb_aval_count_basel = base + 0x4008; | |
2278 | regs->inb_aval_count_baseh = base + 0x400C; | |
2279 | regs->inb_write_pointer = base + 0x4018; | |
2280 | regs->inb_read_pointer = base + 0x401C; | |
2281 | regs->outb_copy_basel = base + 0x4058; | |
2282 | regs->outb_copy_baseh = base + 0x405C; | |
2283 | regs->outb_copy_pointer = base + 0x406C; | |
2284 | regs->outb_read_pointer = base + 0x4070; | |
2285 | regs->outb_coal_cfg = base + 0x4080; | |
2286 | regs->outb_isr_cause = base + 0x4088; | |
2287 | /* Bit setting for HW */ | |
2288 | regs->int_comaout = 1 << 4; | |
2289 | regs->int_dl_cpu2pciea = 1 << 12; | |
2290 | regs->int_comaerr = 1 << 29; | |
2291 | regs->cl_pointer_toggle = 1 << 14; | |
2292 | regs->cl_slot_num_mask = 0x3FFF; | |
2293 | regs->clic_irq = 1 << 0; | |
2294 | regs->clic_out_err = 1 << 1; | |
2295 | regs->int_drbl_int_mask = 0x3FFFFFFF; | |
2296 | regs->int_mu = regs->int_dl_cpu2pciea | regs->int_comaout; | |
2297 | break; | |
2298 | default: | |
2299 | return -1; | |
bd756dde SF |
2300 | } |
2301 | ||
2302 | return 0; | |
2303 | } | |
2304 | ||
f0c568a4 JL |
2305 | /** |
2306 | * mvumi_init_fw - Initializes the FW | |
2307 | * @mhba: Adapter soft state | |
2308 | * | |
2309 | * This is the main function for initializing firmware. | |
2310 | */ | |
2311 | static int mvumi_init_fw(struct mvumi_hba *mhba) | |
2312 | { | |
2313 | int ret = 0; | |
2314 | ||
2315 | if (pci_request_regions(mhba->pdev, MV_DRIVER_NAME)) { | |
2316 | dev_err(&mhba->pdev->dev, "IO memory region busy!\n"); | |
2317 | return -EBUSY; | |
2318 | } | |
2319 | ret = mvumi_map_pci_addr(mhba->pdev, mhba->base_addr); | |
2320 | if (ret) | |
2321 | goto fail_ioremap; | |
2322 | ||
f0c568a4 JL |
2323 | switch (mhba->pdev->device) { |
2324 | case PCI_DEVICE_ID_MARVELL_MV9143: | |
bd756dde | 2325 | mhba->instancet = &mvumi_instance_9143; |
f0c568a4 JL |
2326 | mhba->io_seq = 0; |
2327 | mhba->max_sge = MVUMI_MAX_SG_ENTRY; | |
2328 | mhba->request_id_enabled = 1; | |
2329 | break; | |
bd756dde SF |
2330 | case PCI_DEVICE_ID_MARVELL_MV9580: |
2331 | mhba->instancet = &mvumi_instance_9580; | |
2332 | mhba->io_seq = 0; | |
2333 | mhba->max_sge = MVUMI_MAX_SG_ENTRY; | |
2334 | break; | |
f0c568a4 JL |
2335 | default: |
2336 | dev_err(&mhba->pdev->dev, "device 0x%x not supported!\n", | |
2337 | mhba->pdev->device); | |
2338 | mhba->instancet = NULL; | |
2339 | ret = -EINVAL; | |
2340 | goto fail_alloc_mem; | |
2341 | } | |
2342 | dev_dbg(&mhba->pdev->dev, "device id : %04X is found.\n", | |
2343 | mhba->pdev->device); | |
bd756dde SF |
2344 | ret = mvumi_cfg_hw_reg(mhba); |
2345 | if (ret) { | |
2346 | dev_err(&mhba->pdev->dev, | |
2347 | "failed to allocate memory for reg\n"); | |
2348 | ret = -ENOMEM; | |
2349 | goto fail_alloc_mem; | |
2350 | } | |
ab8e7f4b CH |
2351 | mhba->handshake_page = dma_alloc_coherent(&mhba->pdev->dev, |
2352 | HSP_MAX_SIZE, &mhba->handshake_page_phys, GFP_KERNEL); | |
f0c568a4 JL |
2353 | if (!mhba->handshake_page) { |
2354 | dev_err(&mhba->pdev->dev, | |
2355 | "failed to allocate memory for handshake\n"); | |
2356 | ret = -ENOMEM; | |
bd756dde | 2357 | goto fail_alloc_page; |
f0c568a4 | 2358 | } |
f0c568a4 JL |
2359 | |
2360 | if (mvumi_start(mhba)) { | |
2361 | ret = -EINVAL; | |
2362 | goto fail_ready_state; | |
2363 | } | |
2364 | ret = mvumi_alloc_cmds(mhba); | |
2365 | if (ret) | |
2366 | goto fail_ready_state; | |
2367 | ||
2368 | return 0; | |
2369 | ||
2370 | fail_ready_state: | |
2371 | mvumi_release_mem_resource(mhba); | |
ab8e7f4b | 2372 | dma_free_coherent(&mhba->pdev->dev, HSP_MAX_SIZE, |
bd756dde SF |
2373 | mhba->handshake_page, mhba->handshake_page_phys); |
2374 | fail_alloc_page: | |
2375 | kfree(mhba->regs); | |
f0c568a4 JL |
2376 | fail_alloc_mem: |
2377 | mvumi_unmap_pci_addr(mhba->pdev, mhba->base_addr); | |
2378 | fail_ioremap: | |
2379 | pci_release_regions(mhba->pdev); | |
2380 | ||
2381 | return ret; | |
2382 | } | |
2383 | ||
2384 | /** | |
2385 | * mvumi_io_attach - Attaches this driver to SCSI mid-layer | |
2386 | * @mhba: Adapter soft state | |
2387 | */ | |
2388 | static int mvumi_io_attach(struct mvumi_hba *mhba) | |
2389 | { | |
2390 | struct Scsi_Host *host = mhba->shost; | |
bd756dde | 2391 | struct scsi_device *sdev = NULL; |
f0c568a4 JL |
2392 | int ret; |
2393 | unsigned int max_sg = (mhba->ib_max_size + 4 - | |
2394 | sizeof(struct mvumi_msg_frame)) / sizeof(struct mvumi_sgl); | |
2395 | ||
2396 | host->irq = mhba->pdev->irq; | |
2397 | host->unique_id = mhba->unique_id; | |
2398 | host->can_queue = (mhba->max_io - 1) ? (mhba->max_io - 1) : 1; | |
2399 | host->sg_tablesize = mhba->max_sge > max_sg ? max_sg : mhba->max_sge; | |
2400 | host->max_sectors = mhba->max_transfer_size / 512; | |
bd756dde | 2401 | host->cmd_per_lun = (mhba->max_io - 1) ? (mhba->max_io - 1) : 1; |
f0c568a4 JL |
2402 | host->max_id = mhba->max_target_id; |
2403 | host->max_cmd_len = MAX_COMMAND_SIZE; | |
f0c568a4 JL |
2404 | |
2405 | ret = scsi_add_host(host, &mhba->pdev->dev); | |
2406 | if (ret) { | |
2407 | dev_err(&mhba->pdev->dev, "scsi_add_host failed\n"); | |
2408 | return ret; | |
2409 | } | |
2410 | mhba->fw_flag |= MVUMI_FW_ATTACH; | |
f0c568a4 | 2411 | |
bd756dde SF |
2412 | mutex_lock(&mhba->sas_discovery_mutex); |
2413 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9580) | |
2414 | ret = scsi_add_device(host, 0, mhba->max_target_id - 1, 0); | |
2415 | else | |
2416 | ret = 0; | |
2417 | if (ret) { | |
2418 | dev_err(&mhba->pdev->dev, "add virtual device failed\n"); | |
2419 | mutex_unlock(&mhba->sas_discovery_mutex); | |
2420 | goto fail_add_device; | |
2421 | } | |
2422 | ||
2423 | mhba->dm_thread = kthread_create(mvumi_rescan_bus, | |
2424 | mhba, "mvumi_scanthread"); | |
2425 | if (IS_ERR(mhba->dm_thread)) { | |
2426 | dev_err(&mhba->pdev->dev, | |
2427 | "failed to create device scan thread\n"); | |
055f15ab | 2428 | ret = PTR_ERR(mhba->dm_thread); |
bd756dde SF |
2429 | mutex_unlock(&mhba->sas_discovery_mutex); |
2430 | goto fail_create_thread; | |
2431 | } | |
2432 | atomic_set(&mhba->pnp_count, 1); | |
2433 | wake_up_process(mhba->dm_thread); | |
2434 | ||
2435 | mutex_unlock(&mhba->sas_discovery_mutex); | |
f0c568a4 | 2436 | return 0; |
bd756dde SF |
2437 | |
2438 | fail_create_thread: | |
2439 | if (mhba->pdev->device == PCI_DEVICE_ID_MARVELL_MV9580) | |
2440 | sdev = scsi_device_lookup(mhba->shost, 0, | |
2441 | mhba->max_target_id - 1, 0); | |
2442 | if (sdev) { | |
2443 | scsi_remove_device(sdev); | |
2444 | scsi_device_put(sdev); | |
2445 | } | |
2446 | fail_add_device: | |
2447 | scsi_remove_host(mhba->shost); | |
2448 | return ret; | |
f0c568a4 JL |
2449 | } |
2450 | ||
2451 | /** | |
2452 | * mvumi_probe_one - PCI hotplug entry point | |
2453 | * @pdev: PCI device structure | |
2454 | * @id: PCI ids of supported hotplugged adapter | |
2455 | */ | |
6f039790 | 2456 | static int mvumi_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
f0c568a4 JL |
2457 | { |
2458 | struct Scsi_Host *host; | |
2459 | struct mvumi_hba *mhba; | |
2460 | int ret; | |
2461 | ||
2462 | dev_dbg(&pdev->dev, " %#4.04x:%#4.04x:%#4.04x:%#4.04x: ", | |
2463 | pdev->vendor, pdev->device, pdev->subsystem_vendor, | |
2464 | pdev->subsystem_device); | |
2465 | ||
2466 | ret = pci_enable_device(pdev); | |
2467 | if (ret) | |
2468 | return ret; | |
2469 | ||
ab8e7f4b CH |
2470 | ret = mvumi_pci_set_master(pdev); |
2471 | if (ret) | |
2472 | goto fail_set_dma_mask; | |
f0c568a4 JL |
2473 | |
2474 | host = scsi_host_alloc(&mvumi_template, sizeof(*mhba)); | |
2475 | if (!host) { | |
2476 | dev_err(&pdev->dev, "scsi_host_alloc failed\n"); | |
2477 | ret = -ENOMEM; | |
2478 | goto fail_alloc_instance; | |
2479 | } | |
2480 | mhba = shost_priv(host); | |
2481 | ||
2482 | INIT_LIST_HEAD(&mhba->cmd_pool); | |
2483 | INIT_LIST_HEAD(&mhba->ob_data_list); | |
2484 | INIT_LIST_HEAD(&mhba->free_ob_list); | |
2485 | INIT_LIST_HEAD(&mhba->res_list); | |
2486 | INIT_LIST_HEAD(&mhba->waiting_req_list); | |
bd756dde SF |
2487 | mutex_init(&mhba->device_lock); |
2488 | INIT_LIST_HEAD(&mhba->mhba_dev_list); | |
2489 | INIT_LIST_HEAD(&mhba->shost_dev_list); | |
f0c568a4 JL |
2490 | atomic_set(&mhba->fw_outstanding, 0); |
2491 | init_waitqueue_head(&mhba->int_cmd_wait_q); | |
bd756dde | 2492 | mutex_init(&mhba->sas_discovery_mutex); |
f0c568a4 JL |
2493 | |
2494 | mhba->pdev = pdev; | |
2495 | mhba->shost = host; | |
2496 | mhba->unique_id = pdev->bus->number << 8 | pdev->devfn; | |
2497 | ||
2498 | ret = mvumi_init_fw(mhba); | |
2499 | if (ret) | |
2500 | goto fail_init_fw; | |
2501 | ||
2502 | ret = request_irq(mhba->pdev->irq, mvumi_isr_handler, IRQF_SHARED, | |
2503 | "mvumi", mhba); | |
2504 | if (ret) { | |
2505 | dev_err(&pdev->dev, "failed to register IRQ\n"); | |
2506 | goto fail_init_irq; | |
2507 | } | |
bd756dde SF |
2508 | |
2509 | mhba->instancet->enable_intr(mhba); | |
f0c568a4 JL |
2510 | pci_set_drvdata(pdev, mhba); |
2511 | ||
2512 | ret = mvumi_io_attach(mhba); | |
2513 | if (ret) | |
2514 | goto fail_io_attach; | |
bd756dde SF |
2515 | |
2516 | mvumi_backup_bar_addr(mhba); | |
f0c568a4 JL |
2517 | dev_dbg(&pdev->dev, "probe mvumi driver successfully.\n"); |
2518 | ||
2519 | return 0; | |
2520 | ||
2521 | fail_io_attach: | |
bd756dde | 2522 | mhba->instancet->disable_intr(mhba); |
f0c568a4 JL |
2523 | free_irq(mhba->pdev->irq, mhba); |
2524 | fail_init_irq: | |
2525 | mvumi_release_fw(mhba); | |
2526 | fail_init_fw: | |
2527 | scsi_host_put(host); | |
2528 | ||
2529 | fail_alloc_instance: | |
2530 | fail_set_dma_mask: | |
2531 | pci_disable_device(pdev); | |
2532 | ||
2533 | return ret; | |
2534 | } | |
2535 | ||
2536 | static void mvumi_detach_one(struct pci_dev *pdev) | |
2537 | { | |
2538 | struct Scsi_Host *host; | |
2539 | struct mvumi_hba *mhba; | |
2540 | ||
2541 | mhba = pci_get_drvdata(pdev); | |
bd756dde SF |
2542 | if (mhba->dm_thread) { |
2543 | kthread_stop(mhba->dm_thread); | |
2544 | mhba->dm_thread = NULL; | |
2545 | } | |
2546 | ||
2547 | mvumi_detach_devices(mhba); | |
f0c568a4 JL |
2548 | host = mhba->shost; |
2549 | scsi_remove_host(mhba->shost); | |
2550 | mvumi_flush_cache(mhba); | |
2551 | ||
bd756dde | 2552 | mhba->instancet->disable_intr(mhba); |
f0c568a4 JL |
2553 | free_irq(mhba->pdev->irq, mhba); |
2554 | mvumi_release_fw(mhba); | |
2555 | scsi_host_put(host); | |
f0c568a4 JL |
2556 | pci_disable_device(pdev); |
2557 | dev_dbg(&pdev->dev, "driver is removed!\n"); | |
2558 | } | |
2559 | ||
2560 | /** | |
2561 | * mvumi_shutdown - Shutdown entry point | |
53fdec73 | 2562 | * @pdev: PCI device structure |
f0c568a4 JL |
2563 | */ |
2564 | static void mvumi_shutdown(struct pci_dev *pdev) | |
2565 | { | |
2566 | struct mvumi_hba *mhba = pci_get_drvdata(pdev); | |
2567 | ||
2568 | mvumi_flush_cache(mhba); | |
2569 | } | |
2570 | ||
0572edbc | 2571 | static int __maybe_unused mvumi_suspend(struct device *dev) |
f0c568a4 | 2572 | { |
0572edbc VG |
2573 | struct pci_dev *pdev = to_pci_dev(dev); |
2574 | struct mvumi_hba *mhba = pci_get_drvdata(pdev); | |
f0c568a4 | 2575 | |
f0c568a4 JL |
2576 | mvumi_flush_cache(mhba); |
2577 | ||
bd756dde | 2578 | mhba->instancet->disable_intr(mhba); |
f0c568a4 | 2579 | mvumi_unmap_pci_addr(pdev, mhba->base_addr); |
f0c568a4 JL |
2580 | |
2581 | return 0; | |
2582 | } | |
2583 | ||
0572edbc | 2584 | static int __maybe_unused mvumi_resume(struct device *dev) |
f0c568a4 JL |
2585 | { |
2586 | int ret; | |
0572edbc VG |
2587 | struct pci_dev *pdev = to_pci_dev(dev); |
2588 | struct mvumi_hba *mhba = pci_get_drvdata(pdev); | |
ab8e7f4b | 2589 | |
bddbd00c | 2590 | ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
f0c568a4 JL |
2591 | if (ret) |
2592 | goto fail; | |
2593 | ret = mvumi_map_pci_addr(mhba->pdev, mhba->base_addr); | |
2594 | if (ret) | |
2595 | goto release_regions; | |
2596 | ||
bd756dde SF |
2597 | if (mvumi_cfg_hw_reg(mhba)) { |
2598 | ret = -EINVAL; | |
2599 | goto unmap_pci_addr; | |
2600 | } | |
2601 | ||
f0c568a4 | 2602 | mhba->mmio = mhba->base_addr[0]; |
bd756dde | 2603 | mvumi_reset(mhba); |
f0c568a4 JL |
2604 | |
2605 | if (mvumi_start(mhba)) { | |
2606 | ret = -EINVAL; | |
2607 | goto unmap_pci_addr; | |
2608 | } | |
2609 | ||
bd756dde | 2610 | mhba->instancet->enable_intr(mhba); |
f0c568a4 JL |
2611 | |
2612 | return 0; | |
2613 | ||
2614 | unmap_pci_addr: | |
2615 | mvumi_unmap_pci_addr(pdev, mhba->base_addr); | |
2616 | release_regions: | |
2617 | pci_release_regions(pdev); | |
2618 | fail: | |
f0c568a4 JL |
2619 | |
2620 | return ret; | |
2621 | } | |
2622 | ||
0572edbc VG |
2623 | static SIMPLE_DEV_PM_OPS(mvumi_pm_ops, mvumi_suspend, mvumi_resume); |
2624 | ||
f0c568a4 JL |
2625 | static struct pci_driver mvumi_pci_driver = { |
2626 | ||
2627 | .name = MV_DRIVER_NAME, | |
2628 | .id_table = mvumi_pci_table, | |
2629 | .probe = mvumi_probe_one, | |
6f039790 | 2630 | .remove = mvumi_detach_one, |
f0c568a4 | 2631 | .shutdown = mvumi_shutdown, |
0572edbc | 2632 | .driver.pm = &mvumi_pm_ops, |
f0c568a4 JL |
2633 | }; |
2634 | ||
f9c25ccf | 2635 | module_pci_driver(mvumi_pci_driver); |