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1/*
2 * PMC-Sierra PM8001/8081/8088/8089 SAS/SATA based host adapters driver
3 *
4 * Copyright (c) 2008-2009 USI Co., Ltd.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * substantially similar to the "NO WARRANTY" disclaimer below
15 * ("Disclaimer") and any redistribution must be conditioned upon
16 * including a substantially similar Disclaimer requirement for further
17 * binary redistribution.
18 * 3. Neither the names of the above-listed copyright holders nor the names
19 * of any contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * Alternatively, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2 as published by the Free
24 * Software Foundation.
25 *
26 * NO WARRANTY
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGES.
38 *
39 */
40
41#include <linux/slab.h>
42#include "pm8001_sas.h"
43#include "pm8001_chips.h"
44
45static struct scsi_transport_template *pm8001_stt;
46
47/**
48 * chip info structure to identify chip key functionality as
49 * encryption available/not, no of ports, hw specific function ref
50 */
51static const struct pm8001_chip_info pm8001_chips[] = {
52 [chip_8001] = {0, 8, &pm8001_8001_dispatch,},
53 [chip_8008] = {0, 8, &pm8001_80xx_dispatch,},
54 [chip_8009] = {1, 8, &pm8001_80xx_dispatch,},
55 [chip_8018] = {0, 16, &pm8001_80xx_dispatch,},
56 [chip_8019] = {1, 16, &pm8001_80xx_dispatch,},
57 [chip_8074] = {0, 8, &pm8001_80xx_dispatch,},
58 [chip_8076] = {0, 16, &pm8001_80xx_dispatch,},
59 [chip_8077] = {0, 16, &pm8001_80xx_dispatch,},
60 [chip_8006] = {0, 16, &pm8001_80xx_dispatch,},
61 [chip_8070] = {0, 8, &pm8001_80xx_dispatch,},
62 [chip_8072] = {0, 16, &pm8001_80xx_dispatch,},
63};
64static int pm8001_id;
65
66LIST_HEAD(hba_list);
67
68struct workqueue_struct *pm8001_wq;
69
70/**
71 * The main structure which LLDD must register for scsi core.
72 */
73static struct scsi_host_template pm8001_sht = {
74 .module = THIS_MODULE,
75 .name = DRV_NAME,
76 .queuecommand = sas_queuecommand,
77 .target_alloc = sas_target_alloc,
78 .slave_configure = sas_slave_configure,
79 .scan_finished = pm8001_scan_finished,
80 .scan_start = pm8001_scan_start,
81 .change_queue_depth = sas_change_queue_depth,
82 .bios_param = sas_bios_param,
83 .can_queue = 1,
84 .this_id = -1,
85 .sg_tablesize = SG_ALL,
86 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
87 .use_clustering = ENABLE_CLUSTERING,
88 .eh_device_reset_handler = sas_eh_device_reset_handler,
89 .eh_target_reset_handler = sas_eh_target_reset_handler,
90 .target_destroy = sas_target_destroy,
91 .ioctl = sas_ioctl,
92 .shost_attrs = pm8001_host_attrs,
93 .track_queue_depth = 1,
94};
95
96/**
97 * Sas layer call this function to execute specific task.
98 */
99static struct sas_domain_function_template pm8001_transport_ops = {
100 .lldd_dev_found = pm8001_dev_found,
101 .lldd_dev_gone = pm8001_dev_gone,
102
103 .lldd_execute_task = pm8001_queue_command,
104 .lldd_control_phy = pm8001_phy_control,
105
106 .lldd_abort_task = pm8001_abort_task,
107 .lldd_abort_task_set = pm8001_abort_task_set,
108 .lldd_clear_aca = pm8001_clear_aca,
109 .lldd_clear_task_set = pm8001_clear_task_set,
110 .lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset,
111 .lldd_lu_reset = pm8001_lu_reset,
112 .lldd_query_task = pm8001_query_task,
113};
114
115/**
116 *pm8001_phy_init - initiate our adapter phys
117 *@pm8001_ha: our hba structure.
118 *@phy_id: phy id.
119 */
120static void pm8001_phy_init(struct pm8001_hba_info *pm8001_ha, int phy_id)
121{
122 struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
123 struct asd_sas_phy *sas_phy = &phy->sas_phy;
124 phy->phy_state = 0;
125 phy->pm8001_ha = pm8001_ha;
126 sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0;
127 sas_phy->class = SAS;
128 sas_phy->iproto = SAS_PROTOCOL_ALL;
129 sas_phy->tproto = 0;
130 sas_phy->type = PHY_TYPE_PHYSICAL;
131 sas_phy->role = PHY_ROLE_INITIATOR;
132 sas_phy->oob_mode = OOB_NOT_CONNECTED;
133 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
134 sas_phy->id = phy_id;
135 sas_phy->sas_addr = (u8 *)&phy->dev_sas_addr;
136 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
137 sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata;
138 sas_phy->lldd_phy = phy;
139}
140
141/**
142 *pm8001_free - free hba
143 *@pm8001_ha: our hba structure.
144 *
145 */
146static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
147{
148 int i;
149
150 if (!pm8001_ha)
151 return;
152
153 for (i = 0; i < USI_MAX_MEMCNT; i++) {
154 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
155 pci_free_consistent(pm8001_ha->pdev,
156 (pm8001_ha->memoryMap.region[i].total_len +
157 pm8001_ha->memoryMap.region[i].alignment),
158 pm8001_ha->memoryMap.region[i].virt_ptr,
159 pm8001_ha->memoryMap.region[i].phys_addr);
160 }
161 }
162 PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
163 flush_workqueue(pm8001_wq);
164 kfree(pm8001_ha->tags);
165 kfree(pm8001_ha);
166}
167
168#ifdef PM8001_USE_TASKLET
169
170/**
171 * tasklet for 64 msi-x interrupt handler
172 * @opaque: the passed general host adapter struct
173 * Note: pm8001_tasklet is common for pm8001 & pm80xx
174 */
175static void pm8001_tasklet(unsigned long opaque)
176{
177 struct pm8001_hba_info *pm8001_ha;
178 struct isr_param *irq_vector;
179
180 irq_vector = (struct isr_param *)opaque;
181 pm8001_ha = irq_vector->drv_inst;
182 if (unlikely(!pm8001_ha))
183 BUG_ON(1);
184 PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
185}
186#endif
187
188/**
189 * pm8001_interrupt_handler_msix - main MSIX interrupt handler.
190 * It obtains the vector number and calls the equivalent bottom
191 * half or services directly.
192 * @opaque: the passed outbound queue/vector. Host structure is
193 * retrieved from the same.
194 */
195static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
196{
197 struct isr_param *irq_vector;
198 struct pm8001_hba_info *pm8001_ha;
199 irqreturn_t ret = IRQ_HANDLED;
200 irq_vector = (struct isr_param *)opaque;
201 pm8001_ha = irq_vector->drv_inst;
202
203 if (unlikely(!pm8001_ha))
204 return IRQ_NONE;
205 if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
206 return IRQ_NONE;
207#ifdef PM8001_USE_TASKLET
208 tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]);
209#else
210 ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
211#endif
212 return ret;
213}
214
215/**
216 * pm8001_interrupt_handler_intx - main INTx interrupt handler.
217 * @dev_id: sas_ha structure. The HBA is retrieved from sas_has structure.
218 */
219
220static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
221{
222 struct pm8001_hba_info *pm8001_ha;
223 irqreturn_t ret = IRQ_HANDLED;
224 struct sas_ha_struct *sha = dev_id;
225 pm8001_ha = sha->lldd_ha;
226 if (unlikely(!pm8001_ha))
227 return IRQ_NONE;
228 if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
229 return IRQ_NONE;
230
231#ifdef PM8001_USE_TASKLET
232 tasklet_schedule(&pm8001_ha->tasklet[0]);
233#else
234 ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0);
235#endif
236 return ret;
237}
238
239/**
240 * pm8001_alloc - initiate our hba structure and 6 DMAs area.
241 * @pm8001_ha:our hba structure.
242 *
243 */
244static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
245 const struct pci_device_id *ent)
246{
247 int i;
248 spin_lock_init(&pm8001_ha->lock);
249 spin_lock_init(&pm8001_ha->bitmap_lock);
250 PM8001_INIT_DBG(pm8001_ha,
251 pm8001_printk("pm8001_alloc: PHY:%x\n",
252 pm8001_ha->chip->n_phy));
253 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
254 pm8001_phy_init(pm8001_ha, i);
255 pm8001_ha->port[i].wide_port_phymap = 0;
256 pm8001_ha->port[i].port_attached = 0;
257 pm8001_ha->port[i].port_state = 0;
258 INIT_LIST_HEAD(&pm8001_ha->port[i].list);
259 }
260
261 pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL);
262 if (!pm8001_ha->tags)
263 goto err_out;
264 /* MPI Memory region 1 for AAP Event Log for fw */
265 pm8001_ha->memoryMap.region[AAP1].num_elements = 1;
266 pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE;
267 pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE;
268 pm8001_ha->memoryMap.region[AAP1].alignment = 32;
269
270 /* MPI Memory region 2 for IOP Event Log for fw */
271 pm8001_ha->memoryMap.region[IOP].num_elements = 1;
272 pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE;
273 pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE;
274 pm8001_ha->memoryMap.region[IOP].alignment = 32;
275
276 for (i = 0; i < PM8001_MAX_SPCV_INB_NUM; i++) {
277 /* MPI Memory region 3 for consumer Index of inbound queues */
278 pm8001_ha->memoryMap.region[CI+i].num_elements = 1;
279 pm8001_ha->memoryMap.region[CI+i].element_size = 4;
280 pm8001_ha->memoryMap.region[CI+i].total_len = 4;
281 pm8001_ha->memoryMap.region[CI+i].alignment = 4;
282
283 if ((ent->driver_data) != chip_8001) {
284 /* MPI Memory region 5 inbound queues */
285 pm8001_ha->memoryMap.region[IB+i].num_elements =
286 PM8001_MPI_QUEUE;
287 pm8001_ha->memoryMap.region[IB+i].element_size = 128;
288 pm8001_ha->memoryMap.region[IB+i].total_len =
289 PM8001_MPI_QUEUE * 128;
290 pm8001_ha->memoryMap.region[IB+i].alignment = 128;
291 } else {
292 pm8001_ha->memoryMap.region[IB+i].num_elements =
293 PM8001_MPI_QUEUE;
294 pm8001_ha->memoryMap.region[IB+i].element_size = 64;
295 pm8001_ha->memoryMap.region[IB+i].total_len =
296 PM8001_MPI_QUEUE * 64;
297 pm8001_ha->memoryMap.region[IB+i].alignment = 64;
298 }
299 }
300
301 for (i = 0; i < PM8001_MAX_SPCV_OUTB_NUM; i++) {
302 /* MPI Memory region 4 for producer Index of outbound queues */
303 pm8001_ha->memoryMap.region[PI+i].num_elements = 1;
304 pm8001_ha->memoryMap.region[PI+i].element_size = 4;
305 pm8001_ha->memoryMap.region[PI+i].total_len = 4;
306 pm8001_ha->memoryMap.region[PI+i].alignment = 4;
307
308 if (ent->driver_data != chip_8001) {
309 /* MPI Memory region 6 Outbound queues */
310 pm8001_ha->memoryMap.region[OB+i].num_elements =
311 PM8001_MPI_QUEUE;
312 pm8001_ha->memoryMap.region[OB+i].element_size = 128;
313 pm8001_ha->memoryMap.region[OB+i].total_len =
314 PM8001_MPI_QUEUE * 128;
315 pm8001_ha->memoryMap.region[OB+i].alignment = 128;
316 } else {
317 /* MPI Memory region 6 Outbound queues */
318 pm8001_ha->memoryMap.region[OB+i].num_elements =
319 PM8001_MPI_QUEUE;
320 pm8001_ha->memoryMap.region[OB+i].element_size = 64;
321 pm8001_ha->memoryMap.region[OB+i].total_len =
322 PM8001_MPI_QUEUE * 64;
323 pm8001_ha->memoryMap.region[OB+i].alignment = 64;
324 }
325
326 }
327 /* Memory region write DMA*/
328 pm8001_ha->memoryMap.region[NVMD].num_elements = 1;
329 pm8001_ha->memoryMap.region[NVMD].element_size = 4096;
330 pm8001_ha->memoryMap.region[NVMD].total_len = 4096;
331 /* Memory region for devices*/
332 pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1;
333 pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES *
334 sizeof(struct pm8001_device);
335 pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES *
336 sizeof(struct pm8001_device);
337
338 /* Memory region for ccb_info*/
339 pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1;
340 pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB *
341 sizeof(struct pm8001_ccb_info);
342 pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB *
343 sizeof(struct pm8001_ccb_info);
344
345 /* Memory region for fw flash */
346 pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096;
347
348 pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1;
349 pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000;
350 pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000;
351 pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000;
352 for (i = 0; i < USI_MAX_MEMCNT; i++) {
353 if (pm8001_mem_alloc(pm8001_ha->pdev,
354 &pm8001_ha->memoryMap.region[i].virt_ptr,
355 &pm8001_ha->memoryMap.region[i].phys_addr,
356 &pm8001_ha->memoryMap.region[i].phys_addr_hi,
357 &pm8001_ha->memoryMap.region[i].phys_addr_lo,
358 pm8001_ha->memoryMap.region[i].total_len,
359 pm8001_ha->memoryMap.region[i].alignment) != 0) {
360 PM8001_FAIL_DBG(pm8001_ha,
361 pm8001_printk("Mem%d alloc failed\n",
362 i));
363 goto err_out;
364 }
365 }
366
367 pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr;
368 for (i = 0; i < PM8001_MAX_DEVICES; i++) {
369 pm8001_ha->devices[i].dev_type = SAS_PHY_UNUSED;
370 pm8001_ha->devices[i].id = i;
371 pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
372 pm8001_ha->devices[i].running_req = 0;
373 }
374 pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr;
375 for (i = 0; i < PM8001_MAX_CCB; i++) {
376 pm8001_ha->ccb_info[i].ccb_dma_handle =
377 pm8001_ha->memoryMap.region[CCB_MEM].phys_addr +
378 i * sizeof(struct pm8001_ccb_info);
379 pm8001_ha->ccb_info[i].task = NULL;
380 pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
381 pm8001_ha->ccb_info[i].device = NULL;
382 ++pm8001_ha->tags_num;
383 }
384 pm8001_ha->flags = PM8001F_INIT_TIME;
385 /* Initialize tags */
386 pm8001_tag_init(pm8001_ha);
387 return 0;
388err_out:
389 return 1;
390}
391
392/**
393 * pm8001_ioremap - remap the pci high physical address to kernal virtual
394 * address so that we can access them.
395 * @pm8001_ha:our hba structure.
396 */
397static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
398{
399 u32 bar;
400 u32 logicalBar = 0;
401 struct pci_dev *pdev;
402
403 pdev = pm8001_ha->pdev;
404 /* map pci mem (PMC pci base 0-3)*/
405 for (bar = 0; bar < 6; bar++) {
406 /*
407 ** logical BARs for SPC:
408 ** bar 0 and 1 - logical BAR0
409 ** bar 2 and 3 - logical BAR1
410 ** bar4 - logical BAR2
411 ** bar5 - logical BAR3
412 ** Skip the appropriate assignments:
413 */
414 if ((bar == 1) || (bar == 3))
415 continue;
416 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
417 pm8001_ha->io_mem[logicalBar].membase =
418 pci_resource_start(pdev, bar);
419 pm8001_ha->io_mem[logicalBar].memsize =
420 pci_resource_len(pdev, bar);
421 pm8001_ha->io_mem[logicalBar].memvirtaddr =
422 ioremap(pm8001_ha->io_mem[logicalBar].membase,
423 pm8001_ha->io_mem[logicalBar].memsize);
424 PM8001_INIT_DBG(pm8001_ha,
425 pm8001_printk("PCI: bar %d, logicalBar %d ",
426 bar, logicalBar));
427 PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
428 "base addr %llx virt_addr=%llx len=%d\n",
429 (u64)pm8001_ha->io_mem[logicalBar].membase,
430 (u64)(unsigned long)
431 pm8001_ha->io_mem[logicalBar].memvirtaddr,
432 pm8001_ha->io_mem[logicalBar].memsize));
433 } else {
434 pm8001_ha->io_mem[logicalBar].membase = 0;
435 pm8001_ha->io_mem[logicalBar].memsize = 0;
436 pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
437 }
438 logicalBar++;
439 }
440 return 0;
441}
442
443/**
444 * pm8001_pci_alloc - initialize our ha card structure
445 * @pdev: pci device.
446 * @ent: ent
447 * @shost: scsi host struct which has been initialized before.
448 */
449static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
450 const struct pci_device_id *ent,
451 struct Scsi_Host *shost)
452
453{
454 struct pm8001_hba_info *pm8001_ha;
455 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
456 int j;
457
458 pm8001_ha = sha->lldd_ha;
459 if (!pm8001_ha)
460 return NULL;
461
462 pm8001_ha->pdev = pdev;
463 pm8001_ha->dev = &pdev->dev;
464 pm8001_ha->chip_id = ent->driver_data;
465 pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id];
466 pm8001_ha->irq = pdev->irq;
467 pm8001_ha->sas = sha;
468 pm8001_ha->shost = shost;
469 pm8001_ha->id = pm8001_id++;
470 pm8001_ha->logging_level = 0x01;
471 sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
472 /* IOMB size is 128 for 8088/89 controllers */
473 if (pm8001_ha->chip_id != chip_8001)
474 pm8001_ha->iomb_size = IOMB_SIZE_SPCV;
475 else
476 pm8001_ha->iomb_size = IOMB_SIZE_SPC;
477
478#ifdef PM8001_USE_TASKLET
479 /* Tasklet for non msi-x interrupt handler */
480 if ((!pdev->msix_cap || !pci_msi_enabled())
481 || (pm8001_ha->chip_id == chip_8001))
482 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
483 (unsigned long)&(pm8001_ha->irq_vector[0]));
484 else
485 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
486 tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
487 (unsigned long)&(pm8001_ha->irq_vector[j]));
488#endif
489 pm8001_ioremap(pm8001_ha);
490 if (!pm8001_alloc(pm8001_ha, ent))
491 return pm8001_ha;
492 pm8001_free(pm8001_ha);
493 return NULL;
494}
495
496/**
497 * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit
498 * @pdev: pci device.
499 */
500static int pci_go_44(struct pci_dev *pdev)
501{
502 int rc;
503
504 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) {
505 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44));
506 if (rc) {
507 rc = pci_set_consistent_dma_mask(pdev,
508 DMA_BIT_MASK(32));
509 if (rc) {
510 dev_printk(KERN_ERR, &pdev->dev,
511 "44-bit DMA enable failed\n");
512 return rc;
513 }
514 }
515 } else {
516 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
517 if (rc) {
518 dev_printk(KERN_ERR, &pdev->dev,
519 "32-bit DMA enable failed\n");
520 return rc;
521 }
522 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
523 if (rc) {
524 dev_printk(KERN_ERR, &pdev->dev,
525 "32-bit consistent DMA enable failed\n");
526 return rc;
527 }
528 }
529 return rc;
530}
531
532/**
533 * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them.
534 * @shost: scsi host which has been allocated outside.
535 * @chip_info: our ha struct.
536 */
537static int pm8001_prep_sas_ha_init(struct Scsi_Host *shost,
538 const struct pm8001_chip_info *chip_info)
539{
540 int phy_nr, port_nr;
541 struct asd_sas_phy **arr_phy;
542 struct asd_sas_port **arr_port;
543 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
544
545 phy_nr = chip_info->n_phy;
546 port_nr = phy_nr;
547 memset(sha, 0x00, sizeof(*sha));
548 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
549 if (!arr_phy)
550 goto exit;
551 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
552 if (!arr_port)
553 goto exit_free2;
554
555 sha->sas_phy = arr_phy;
556 sha->sas_port = arr_port;
557 sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL);
558 if (!sha->lldd_ha)
559 goto exit_free1;
560
561 shost->transportt = pm8001_stt;
562 shost->max_id = PM8001_MAX_DEVICES;
563 shost->max_lun = 8;
564 shost->max_channel = 0;
565 shost->unique_id = pm8001_id;
566 shost->max_cmd_len = 16;
567 shost->can_queue = PM8001_CAN_QUEUE;
568 shost->cmd_per_lun = 32;
569 return 0;
570exit_free1:
571 kfree(arr_port);
572exit_free2:
573 kfree(arr_phy);
574exit:
575 return -1;
576}
577
578/**
579 * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas
580 * @shost: scsi host which has been allocated outside
581 * @chip_info: our ha struct.
582 */
583static void pm8001_post_sas_ha_init(struct Scsi_Host *shost,
584 const struct pm8001_chip_info *chip_info)
585{
586 int i = 0;
587 struct pm8001_hba_info *pm8001_ha;
588 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
589
590 pm8001_ha = sha->lldd_ha;
591 for (i = 0; i < chip_info->n_phy; i++) {
592 sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy;
593 sha->sas_port[i] = &pm8001_ha->port[i].sas_port;
594 sha->sas_phy[i]->sas_addr =
595 (u8 *)&pm8001_ha->phy[i].dev_sas_addr;
596 }
597 sha->sas_ha_name = DRV_NAME;
598 sha->dev = pm8001_ha->dev;
599 sha->strict_wide_ports = 1;
600 sha->lldd_module = THIS_MODULE;
601 sha->sas_addr = &pm8001_ha->sas_addr[0];
602 sha->num_phys = chip_info->n_phy;
603 sha->core.shost = shost;
604}
605
606/**
607 * pm8001_init_sas_add - initialize sas address
608 * @chip_info: our ha struct.
609 *
610 * Currently we just set the fixed SAS address to our HBA,for manufacture,
611 * it should read from the EEPROM
612 */
613static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
614{
615 u8 i, j;
616 u8 sas_add[8];
617#ifdef PM8001_READ_VPD
618 /* For new SPC controllers WWN is stored in flash vpd
619 * For SPC/SPCve controllers WWN is stored in EEPROM
620 * For Older SPC WWN is stored in NVMD
621 */
622 DECLARE_COMPLETION_ONSTACK(completion);
623 struct pm8001_ioctl_payload payload;
624 u16 deviceid;
625 int rc;
626
627 pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
628 pm8001_ha->nvmd_completion = &completion;
629
630 if (pm8001_ha->chip_id == chip_8001) {
631 if (deviceid == 0x8081 || deviceid == 0x0042) {
632 payload.minor_function = 4;
633 payload.length = 4096;
634 } else {
635 payload.minor_function = 0;
636 payload.length = 128;
637 }
638 } else if ((pm8001_ha->chip_id == chip_8070 ||
639 pm8001_ha->chip_id == chip_8072) &&
640 pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) {
641 payload.minor_function = 4;
642 payload.length = 4096;
643 } else {
644 payload.minor_function = 1;
645 payload.length = 4096;
646 }
647 payload.offset = 0;
648 payload.func_specific = kzalloc(payload.length, GFP_KERNEL);
649 if (!payload.func_specific) {
650 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("mem alloc fail\n"));
651 return;
652 }
653 rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
654 if (rc) {
655 kfree(payload.func_specific);
656 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
657 return;
658 }
659 wait_for_completion(&completion);
660
661 for (i = 0, j = 0; i <= 7; i++, j++) {
662 if (pm8001_ha->chip_id == chip_8001) {
663 if (deviceid == 0x8081)
664 pm8001_ha->sas_addr[j] =
665 payload.func_specific[0x704 + i];
666 else if (deviceid == 0x0042)
667 pm8001_ha->sas_addr[j] =
668 payload.func_specific[0x010 + i];
669 } else if ((pm8001_ha->chip_id == chip_8070 ||
670 pm8001_ha->chip_id == chip_8072) &&
671 pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) {
672 pm8001_ha->sas_addr[j] =
673 payload.func_specific[0x010 + i];
674 } else
675 pm8001_ha->sas_addr[j] =
676 payload.func_specific[0x804 + i];
677 }
678 memcpy(sas_add, pm8001_ha->sas_addr, SAS_ADDR_SIZE);
679 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
680 if (i && ((i % 4) == 0))
681 sas_add[7] = sas_add[7] + 4;
682 memcpy(&pm8001_ha->phy[i].dev_sas_addr,
683 sas_add, SAS_ADDR_SIZE);
684 PM8001_INIT_DBG(pm8001_ha,
685 pm8001_printk("phy %d sas_addr = %016llx\n", i,
686 pm8001_ha->phy[i].dev_sas_addr));
687 }
688 kfree(payload.func_specific);
689#else
690 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
691 pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
692 pm8001_ha->phy[i].dev_sas_addr =
693 cpu_to_be64((u64)
694 (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
695 }
696 memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
697 SAS_ADDR_SIZE);
698#endif
699}
700
701/*
702 * pm8001_get_phy_settings_info : Read phy setting values.
703 * @pm8001_ha : our hba.
704 */
705static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
706{
707
708#ifdef PM8001_READ_VPD
709 /*OPTION ROM FLASH read for the SPC cards */
710 DECLARE_COMPLETION_ONSTACK(completion);
711 struct pm8001_ioctl_payload payload;
712 int rc;
713
714 pm8001_ha->nvmd_completion = &completion;
715 /* SAS ADDRESS read from flash / EEPROM */
716 payload.minor_function = 6;
717 payload.offset = 0;
718 payload.length = 4096;
719 payload.func_specific = kzalloc(4096, GFP_KERNEL);
720 if (!payload.func_specific)
721 return -ENOMEM;
722 /* Read phy setting values from flash */
723 rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
724 if (rc) {
725 kfree(payload.func_specific);
726 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
727 return -ENOMEM;
728 }
729 wait_for_completion(&completion);
730 pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
731 kfree(payload.func_specific);
732#endif
733 return 0;
734}
735
736struct pm8001_mpi3_phy_pg_trx_config {
737 u32 LaneLosCfg;
738 u32 LanePgaCfg1;
739 u32 LanePisoCfg1;
740 u32 LanePisoCfg2;
741 u32 LanePisoCfg3;
742 u32 LanePisoCfg4;
743 u32 LanePisoCfg5;
744 u32 LanePisoCfg6;
745 u32 LaneBctCtrl;
746};
747
748/**
749 * pm8001_get_internal_phy_settings : Retrieves the internal PHY settings
750 * @pm8001_ha : our adapter
751 * @phycfg : PHY config page to populate
752 */
753static
754void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha,
755 struct pm8001_mpi3_phy_pg_trx_config *phycfg)
756{
757 phycfg->LaneLosCfg = 0x00000132;
758 phycfg->LanePgaCfg1 = 0x00203949;
759 phycfg->LanePisoCfg1 = 0x000000FF;
760 phycfg->LanePisoCfg2 = 0xFF000001;
761 phycfg->LanePisoCfg3 = 0xE7011300;
762 phycfg->LanePisoCfg4 = 0x631C40C0;
763 phycfg->LanePisoCfg5 = 0xF8102036;
764 phycfg->LanePisoCfg6 = 0xF74A1000;
765 phycfg->LaneBctCtrl = 0x00FB33F8;
766}
767
768/**
769 * pm8001_get_external_phy_settings : Retrieves the external PHY settings
770 * @pm8001_ha : our adapter
771 * @phycfg : PHY config page to populate
772 */
773static
774void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha,
775 struct pm8001_mpi3_phy_pg_trx_config *phycfg)
776{
777 phycfg->LaneLosCfg = 0x00000132;
778 phycfg->LanePgaCfg1 = 0x00203949;
779 phycfg->LanePisoCfg1 = 0x000000FF;
780 phycfg->LanePisoCfg2 = 0xFF000001;
781 phycfg->LanePisoCfg3 = 0xE7011300;
782 phycfg->LanePisoCfg4 = 0x63349140;
783 phycfg->LanePisoCfg5 = 0xF8102036;
784 phycfg->LanePisoCfg6 = 0xF80D9300;
785 phycfg->LaneBctCtrl = 0x00FB33F8;
786}
787
788/**
789 * pm8001_get_phy_mask : Retrieves the mask that denotes if a PHY is int/ext
790 * @pm8001_ha : our adapter
791 * @phymask : The PHY mask
792 */
793static
794void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask)
795{
796 switch (pm8001_ha->pdev->subsystem_device) {
797 case 0x0070: /* H1280 - 8 external 0 internal */
798 case 0x0072: /* H12F0 - 16 external 0 internal */
799 *phymask = 0x0000;
800 break;
801
802 case 0x0071: /* H1208 - 0 external 8 internal */
803 case 0x0073: /* H120F - 0 external 16 internal */
804 *phymask = 0xFFFF;
805 break;
806
807 case 0x0080: /* H1244 - 4 external 4 internal */
808 *phymask = 0x00F0;
809 break;
810
811 case 0x0081: /* H1248 - 4 external 8 internal */
812 *phymask = 0x0FF0;
813 break;
814
815 case 0x0082: /* H1288 - 8 external 8 internal */
816 *phymask = 0xFF00;
817 break;
818
819 default:
820 PM8001_INIT_DBG(pm8001_ha,
821 pm8001_printk("Unknown subsystem device=0x%.04x",
822 pm8001_ha->pdev->subsystem_device));
823 }
824}
825
826/**
827 * pm8001_set_phy_settings_ven_117c_12Gb : Configure ATTO 12Gb PHY settings
828 * @pm8001_ha : our adapter
829 */
830static
831int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha)
832{
833 struct pm8001_mpi3_phy_pg_trx_config phycfg_int;
834 struct pm8001_mpi3_phy_pg_trx_config phycfg_ext;
835 int phymask = 0;
836 int i = 0;
837
838 memset(&phycfg_int, 0, sizeof(phycfg_int));
839 memset(&phycfg_ext, 0, sizeof(phycfg_ext));
840
841 pm8001_get_internal_phy_settings(pm8001_ha, &phycfg_int);
842 pm8001_get_external_phy_settings(pm8001_ha, &phycfg_ext);
843 pm8001_get_phy_mask(pm8001_ha, &phymask);
844
845 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
846 if (phymask & (1 << i)) {/* Internal PHY */
847 pm8001_set_phy_profile_single(pm8001_ha, i,
848 sizeof(phycfg_int) / sizeof(u32),
849 (u32 *)&phycfg_int);
850
851 } else { /* External PHY */
852 pm8001_set_phy_profile_single(pm8001_ha, i,
853 sizeof(phycfg_ext) / sizeof(u32),
854 (u32 *)&phycfg_ext);
855 }
856 }
857
858 return 0;
859}
860
861/**
862 * pm8001_configure_phy_settings : Configures PHY settings based on vendor ID.
863 * @pm8001_ha : our hba.
864 */
865static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha)
866{
867 switch (pm8001_ha->pdev->subsystem_vendor) {
868 case PCI_VENDOR_ID_ATTO:
869 if (pm8001_ha->pdev->device == 0x0042) /* 6Gb */
870 return 0;
871 else
872 return pm8001_set_phy_settings_ven_117c_12G(pm8001_ha);
873
874 case PCI_VENDOR_ID_ADAPTEC2:
875 case 0:
876 return 0;
877
878 default:
879 return pm8001_get_phy_settings_info(pm8001_ha);
880 }
881}
882
883#ifdef PM8001_USE_MSIX
884/**
885 * pm8001_setup_msix - enable MSI-X interrupt
886 * @chip_info: our ha struct.
887 * @irq_handler: irq_handler
888 */
889static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
890{
891 u32 i = 0, j = 0;
892 u32 number_of_intr;
893 int flag = 0;
894 int rc;
895 static char intr_drvname[PM8001_MAX_MSIX_VEC][sizeof(DRV_NAME)+3];
896
897 /* SPCv controllers supports 64 msi-x */
898 if (pm8001_ha->chip_id == chip_8001) {
899 number_of_intr = 1;
900 } else {
901 number_of_intr = PM8001_MAX_MSIX_VEC;
902 flag &= ~IRQF_SHARED;
903 }
904
905 rc = pci_alloc_irq_vectors(pm8001_ha->pdev, number_of_intr,
906 number_of_intr, PCI_IRQ_MSIX);
907 if (rc < 0)
908 return rc;
909 pm8001_ha->number_of_intr = number_of_intr;
910
911 PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
912 "pci_alloc_irq_vectors request ret:%d no of intr %d\n",
913 rc, pm8001_ha->number_of_intr));
914
915 for (i = 0; i < number_of_intr; i++) {
916 snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
917 DRV_NAME"%d", i);
918 pm8001_ha->irq_vector[i].irq_id = i;
919 pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
920
921 rc = request_irq(pci_irq_vector(pm8001_ha->pdev, i),
922 pm8001_interrupt_handler_msix, flag,
923 intr_drvname[i], &(pm8001_ha->irq_vector[i]));
924 if (rc) {
925 for (j = 0; j < i; j++) {
926 free_irq(pci_irq_vector(pm8001_ha->pdev, i),
927 &(pm8001_ha->irq_vector[i]));
928 }
929 pci_free_irq_vectors(pm8001_ha->pdev);
930 break;
931 }
932 }
933
934 return rc;
935}
936#endif
937
938/**
939 * pm8001_request_irq - register interrupt
940 * @chip_info: our ha struct.
941 */
942static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
943{
944 struct pci_dev *pdev;
945 int rc;
946
947 pdev = pm8001_ha->pdev;
948
949#ifdef PM8001_USE_MSIX
950 if (pdev->msix_cap && pci_msi_enabled())
951 return pm8001_setup_msix(pm8001_ha);
952 else {
953 PM8001_INIT_DBG(pm8001_ha,
954 pm8001_printk("MSIX not supported!!!\n"));
955 goto intx;
956 }
957#endif
958
959intx:
960 /* initialize the INT-X interrupt */
961 pm8001_ha->irq_vector[0].irq_id = 0;
962 pm8001_ha->irq_vector[0].drv_inst = pm8001_ha;
963 rc = request_irq(pdev->irq, pm8001_interrupt_handler_intx, IRQF_SHARED,
964 DRV_NAME, SHOST_TO_SAS_HA(pm8001_ha->shost));
965 return rc;
966}
967
968/**
969 * pm8001_pci_probe - probe supported device
970 * @pdev: pci device which kernel has been prepared for.
971 * @ent: pci device id
972 *
973 * This function is the main initialization function, when register a new
974 * pci driver it is invoked, all struct an hardware initilization should be done
975 * here, also, register interrupt
976 */
977static int pm8001_pci_probe(struct pci_dev *pdev,
978 const struct pci_device_id *ent)
979{
980 unsigned int rc;
981 u32 pci_reg;
982 u8 i = 0;
983 struct pm8001_hba_info *pm8001_ha;
984 struct Scsi_Host *shost = NULL;
985 const struct pm8001_chip_info *chip;
986
987 dev_printk(KERN_INFO, &pdev->dev,
988 "pm80xx: driver version %s\n", DRV_VERSION);
989 rc = pci_enable_device(pdev);
990 if (rc)
991 goto err_out_enable;
992 pci_set_master(pdev);
993 /*
994 * Enable pci slot busmaster by setting pci command register.
995 * This is required by FW for Cyclone card.
996 */
997
998 pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg);
999 pci_reg |= 0x157;
1000 pci_write_config_dword(pdev, PCI_COMMAND, pci_reg);
1001 rc = pci_request_regions(pdev, DRV_NAME);
1002 if (rc)
1003 goto err_out_disable;
1004 rc = pci_go_44(pdev);
1005 if (rc)
1006 goto err_out_regions;
1007
1008 shost = scsi_host_alloc(&pm8001_sht, sizeof(void *));
1009 if (!shost) {
1010 rc = -ENOMEM;
1011 goto err_out_regions;
1012 }
1013 chip = &pm8001_chips[ent->driver_data];
1014 SHOST_TO_SAS_HA(shost) =
1015 kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL);
1016 if (!SHOST_TO_SAS_HA(shost)) {
1017 rc = -ENOMEM;
1018 goto err_out_free_host;
1019 }
1020
1021 rc = pm8001_prep_sas_ha_init(shost, chip);
1022 if (rc) {
1023 rc = -ENOMEM;
1024 goto err_out_free;
1025 }
1026 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
1027 /* ent->driver variable is used to differentiate between controllers */
1028 pm8001_ha = pm8001_pci_alloc(pdev, ent, shost);
1029 if (!pm8001_ha) {
1030 rc = -ENOMEM;
1031 goto err_out_free;
1032 }
1033 list_add_tail(&pm8001_ha->list, &hba_list);
1034 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1035 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
1036 if (rc) {
1037 PM8001_FAIL_DBG(pm8001_ha, pm8001_printk(
1038 "chip_init failed [ret: %d]\n", rc));
1039 goto err_out_ha_free;
1040 }
1041
1042 rc = scsi_add_host(shost, &pdev->dev);
1043 if (rc)
1044 goto err_out_ha_free;
1045 rc = pm8001_request_irq(pm8001_ha);
1046 if (rc) {
1047 PM8001_FAIL_DBG(pm8001_ha, pm8001_printk(
1048 "pm8001_request_irq failed [ret: %d]\n", rc));
1049 goto err_out_shost;
1050 }
1051
1052 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
1053 if (pm8001_ha->chip_id != chip_8001) {
1054 for (i = 1; i < pm8001_ha->number_of_intr; i++)
1055 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i);
1056 /* setup thermal configuration. */
1057 pm80xx_set_thermal_config(pm8001_ha);
1058 }
1059
1060 pm8001_init_sas_add(pm8001_ha);
1061 /* phy setting support for motherboard controller */
1062 if (pm8001_configure_phy_settings(pm8001_ha))
1063 goto err_out_shost;
1064
1065 pm8001_post_sas_ha_init(shost, chip);
1066 rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
1067 if (rc)
1068 goto err_out_shost;
1069 scsi_scan_host(pm8001_ha->shost);
1070 return 0;
1071
1072err_out_shost:
1073 scsi_remove_host(pm8001_ha->shost);
1074err_out_ha_free:
1075 pm8001_free(pm8001_ha);
1076err_out_free:
1077 kfree(SHOST_TO_SAS_HA(shost));
1078err_out_free_host:
1079 scsi_host_put(shost);
1080err_out_regions:
1081 pci_release_regions(pdev);
1082err_out_disable:
1083 pci_disable_device(pdev);
1084err_out_enable:
1085 return rc;
1086}
1087
1088static void pm8001_pci_remove(struct pci_dev *pdev)
1089{
1090 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1091 struct pm8001_hba_info *pm8001_ha;
1092 int i, j;
1093 pm8001_ha = sha->lldd_ha;
1094 sas_unregister_ha(sha);
1095 sas_remove_host(pm8001_ha->shost);
1096 list_del(&pm8001_ha->list);
1097 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1098 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1099
1100#ifdef PM8001_USE_MSIX
1101 for (i = 0; i < pm8001_ha->number_of_intr; i++)
1102 synchronize_irq(pci_irq_vector(pdev, i));
1103 for (i = 0; i < pm8001_ha->number_of_intr; i++)
1104 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
1105 pci_free_irq_vectors(pdev);
1106#else
1107 free_irq(pm8001_ha->irq, sha);
1108#endif
1109#ifdef PM8001_USE_TASKLET
1110 /* For non-msix and msix interrupts */
1111 if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1112 (pm8001_ha->chip_id == chip_8001))
1113 tasklet_kill(&pm8001_ha->tasklet[0]);
1114 else
1115 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1116 tasklet_kill(&pm8001_ha->tasklet[j]);
1117#endif
1118 scsi_host_put(pm8001_ha->shost);
1119 pm8001_free(pm8001_ha);
1120 kfree(sha->sas_phy);
1121 kfree(sha->sas_port);
1122 kfree(sha);
1123 pci_release_regions(pdev);
1124 pci_disable_device(pdev);
1125}
1126
1127/**
1128 * pm8001_pci_suspend - power management suspend main entry point
1129 * @pdev: PCI device struct
1130 * @state: PM state change to (usually PCI_D3)
1131 *
1132 * Returns 0 success, anything else error.
1133 */
1134static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1135{
1136 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1137 struct pm8001_hba_info *pm8001_ha;
1138 int i, j;
1139 u32 device_state;
1140 pm8001_ha = sha->lldd_ha;
1141 sas_suspend_ha(sha);
1142 flush_workqueue(pm8001_wq);
1143 scsi_block_requests(pm8001_ha->shost);
1144 if (!pdev->pm_cap) {
1145 dev_err(&pdev->dev, " PCI PM not supported\n");
1146 return -ENODEV;
1147 }
1148 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1149 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1150#ifdef PM8001_USE_MSIX
1151 for (i = 0; i < pm8001_ha->number_of_intr; i++)
1152 synchronize_irq(pci_irq_vector(pdev, i));
1153 for (i = 0; i < pm8001_ha->number_of_intr; i++)
1154 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
1155 pci_free_irq_vectors(pdev);
1156#else
1157 free_irq(pm8001_ha->irq, sha);
1158#endif
1159#ifdef PM8001_USE_TASKLET
1160 /* For non-msix and msix interrupts */
1161 if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1162 (pm8001_ha->chip_id == chip_8001))
1163 tasklet_kill(&pm8001_ha->tasklet[0]);
1164 else
1165 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1166 tasklet_kill(&pm8001_ha->tasklet[j]);
1167#endif
1168 device_state = pci_choose_state(pdev, state);
1169 pm8001_printk("pdev=0x%p, slot=%s, entering "
1170 "operating state [D%d]\n", pdev,
1171 pm8001_ha->name, device_state);
1172 pci_save_state(pdev);
1173 pci_disable_device(pdev);
1174 pci_set_power_state(pdev, device_state);
1175 return 0;
1176}
1177
1178/**
1179 * pm8001_pci_resume - power management resume main entry point
1180 * @pdev: PCI device struct
1181 *
1182 * Returns 0 success, anything else error.
1183 */
1184static int pm8001_pci_resume(struct pci_dev *pdev)
1185{
1186 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1187 struct pm8001_hba_info *pm8001_ha;
1188 int rc;
1189 u8 i = 0, j;
1190 u32 device_state;
1191 DECLARE_COMPLETION_ONSTACK(completion);
1192 pm8001_ha = sha->lldd_ha;
1193 device_state = pdev->current_state;
1194
1195 pm8001_printk("pdev=0x%p, slot=%s, resuming from previous "
1196 "operating state [D%d]\n", pdev, pm8001_ha->name, device_state);
1197
1198 pci_set_power_state(pdev, PCI_D0);
1199 pci_enable_wake(pdev, PCI_D0, 0);
1200 pci_restore_state(pdev);
1201 rc = pci_enable_device(pdev);
1202 if (rc) {
1203 pm8001_printk("slot=%s Enable device failed during resume\n",
1204 pm8001_ha->name);
1205 goto err_out_enable;
1206 }
1207
1208 pci_set_master(pdev);
1209 rc = pci_go_44(pdev);
1210 if (rc)
1211 goto err_out_disable;
1212 sas_prep_resume_ha(sha);
1213 /* chip soft rst only for spc */
1214 if (pm8001_ha->chip_id == chip_8001) {
1215 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1216 PM8001_INIT_DBG(pm8001_ha,
1217 pm8001_printk("chip soft reset successful\n"));
1218 }
1219 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
1220 if (rc)
1221 goto err_out_disable;
1222
1223 /* disable all the interrupt bits */
1224 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1225
1226 rc = pm8001_request_irq(pm8001_ha);
1227 if (rc)
1228 goto err_out_disable;
1229#ifdef PM8001_USE_TASKLET
1230 /* Tasklet for non msi-x interrupt handler */
1231 if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1232 (pm8001_ha->chip_id == chip_8001))
1233 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
1234 (unsigned long)&(pm8001_ha->irq_vector[0]));
1235 else
1236 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1237 tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
1238 (unsigned long)&(pm8001_ha->irq_vector[j]));
1239#endif
1240 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
1241 if (pm8001_ha->chip_id != chip_8001) {
1242 for (i = 1; i < pm8001_ha->number_of_intr; i++)
1243 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i);
1244 }
1245
1246 /* Chip documentation for the 8070 and 8072 SPCv */
1247 /* states that a 500ms minimum delay is required */
1248 /* before issuing commands. Otherwise, the firmware */
1249 /* will enter an unrecoverable state. */
1250
1251 if (pm8001_ha->chip_id == chip_8070 ||
1252 pm8001_ha->chip_id == chip_8072) {
1253 mdelay(500);
1254 }
1255
1256 /* Spin up the PHYs */
1257
1258 pm8001_ha->flags = PM8001F_RUN_TIME;
1259 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
1260 pm8001_ha->phy[i].enable_completion = &completion;
1261 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i);
1262 wait_for_completion(&completion);
1263 }
1264 sas_resume_ha(sha);
1265 return 0;
1266
1267err_out_disable:
1268 scsi_remove_host(pm8001_ha->shost);
1269 pci_disable_device(pdev);
1270err_out_enable:
1271 return rc;
1272}
1273
1274/* update of pci device, vendor id and driver data with
1275 * unique value for each of the controller
1276 */
1277static struct pci_device_id pm8001_pci_table[] = {
1278 { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 },
1279 { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 },
1280 { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 },
1281 { PCI_VDEVICE(ATTO, 0x0042), chip_8001 },
1282 /* Support for SPC/SPCv/SPCve controllers */
1283 { PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 },
1284 { PCI_VDEVICE(PMC_Sierra, 0x8008), chip_8008 },
1285 { PCI_VDEVICE(ADAPTEC2, 0x8008), chip_8008 },
1286 { PCI_VDEVICE(PMC_Sierra, 0x8018), chip_8018 },
1287 { PCI_VDEVICE(ADAPTEC2, 0x8018), chip_8018 },
1288 { PCI_VDEVICE(PMC_Sierra, 0x8009), chip_8009 },
1289 { PCI_VDEVICE(ADAPTEC2, 0x8009), chip_8009 },
1290 { PCI_VDEVICE(PMC_Sierra, 0x8019), chip_8019 },
1291 { PCI_VDEVICE(ADAPTEC2, 0x8019), chip_8019 },
1292 { PCI_VDEVICE(PMC_Sierra, 0x8074), chip_8074 },
1293 { PCI_VDEVICE(ADAPTEC2, 0x8074), chip_8074 },
1294 { PCI_VDEVICE(PMC_Sierra, 0x8076), chip_8076 },
1295 { PCI_VDEVICE(ADAPTEC2, 0x8076), chip_8076 },
1296 { PCI_VDEVICE(PMC_Sierra, 0x8077), chip_8077 },
1297 { PCI_VDEVICE(ADAPTEC2, 0x8077), chip_8077 },
1298 { PCI_VENDOR_ID_ADAPTEC2, 0x8081,
1299 PCI_VENDOR_ID_ADAPTEC2, 0x0400, 0, 0, chip_8001 },
1300 { PCI_VENDOR_ID_ADAPTEC2, 0x8081,
1301 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8001 },
1302 { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1303 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8008 },
1304 { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1305 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8008 },
1306 { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1307 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8009 },
1308 { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1309 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8009 },
1310 { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1311 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8018 },
1312 { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1313 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8018 },
1314 { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1315 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8019 },
1316 { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1317 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8019 },
1318 { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1319 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8074 },
1320 { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1321 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8076 },
1322 { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1323 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8077 },
1324 { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1325 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8074 },
1326 { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1327 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8076 },
1328 { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1329 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8077 },
1330 { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1331 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8076 },
1332 { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1333 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8077 },
1334 { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1335 PCI_VENDOR_ID_ADAPTEC2, 0x0404, 0, 0, chip_8074 },
1336 { PCI_VENDOR_ID_ATTO, 0x8070,
1337 PCI_VENDOR_ID_ATTO, 0x0070, 0, 0, chip_8070 },
1338 { PCI_VENDOR_ID_ATTO, 0x8070,
1339 PCI_VENDOR_ID_ATTO, 0x0071, 0, 0, chip_8070 },
1340 { PCI_VENDOR_ID_ATTO, 0x8072,
1341 PCI_VENDOR_ID_ATTO, 0x0072, 0, 0, chip_8072 },
1342 { PCI_VENDOR_ID_ATTO, 0x8072,
1343 PCI_VENDOR_ID_ATTO, 0x0073, 0, 0, chip_8072 },
1344 { PCI_VENDOR_ID_ATTO, 0x8070,
1345 PCI_VENDOR_ID_ATTO, 0x0080, 0, 0, chip_8070 },
1346 { PCI_VENDOR_ID_ATTO, 0x8072,
1347 PCI_VENDOR_ID_ATTO, 0x0081, 0, 0, chip_8072 },
1348 { PCI_VENDOR_ID_ATTO, 0x8072,
1349 PCI_VENDOR_ID_ATTO, 0x0082, 0, 0, chip_8072 },
1350 {} /* terminate list */
1351};
1352
1353static struct pci_driver pm8001_pci_driver = {
1354 .name = DRV_NAME,
1355 .id_table = pm8001_pci_table,
1356 .probe = pm8001_pci_probe,
1357 .remove = pm8001_pci_remove,
1358 .suspend = pm8001_pci_suspend,
1359 .resume = pm8001_pci_resume,
1360};
1361
1362/**
1363 * pm8001_init - initialize scsi transport template
1364 */
1365static int __init pm8001_init(void)
1366{
1367 int rc = -ENOMEM;
1368
1369 pm8001_wq = alloc_workqueue("pm80xx", 0, 0);
1370 if (!pm8001_wq)
1371 goto err;
1372
1373 pm8001_id = 0;
1374 pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
1375 if (!pm8001_stt)
1376 goto err_wq;
1377 rc = pci_register_driver(&pm8001_pci_driver);
1378 if (rc)
1379 goto err_tp;
1380 return 0;
1381
1382err_tp:
1383 sas_release_transport(pm8001_stt);
1384err_wq:
1385 destroy_workqueue(pm8001_wq);
1386err:
1387 return rc;
1388}
1389
1390static void __exit pm8001_exit(void)
1391{
1392 pci_unregister_driver(&pm8001_pci_driver);
1393 sas_release_transport(pm8001_stt);
1394 destroy_workqueue(pm8001_wq);
1395}
1396
1397module_init(pm8001_init);
1398module_exit(pm8001_exit);
1399
1400MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
1401MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>");
1402MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>");
1403MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>");
1404MODULE_DESCRIPTION(
1405 "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077/8070/8072 "
1406 "SAS/SATA controller driver");
1407MODULE_VERSION(DRV_VERSION);
1408MODULE_LICENSE("GPL");
1409MODULE_DEVICE_TABLE(pci, pm8001_pci_table);
1410
1/*
2 * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
3 *
4 * Copyright (c) 2008-2009 USI Co., Ltd.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * substantially similar to the "NO WARRANTY" disclaimer below
15 * ("Disclaimer") and any redistribution must be conditioned upon
16 * including a substantially similar Disclaimer requirement for further
17 * binary redistribution.
18 * 3. Neither the names of the above-listed copyright holders nor the names
19 * of any contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * Alternatively, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2 as published by the Free
24 * Software Foundation.
25 *
26 * NO WARRANTY
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGES.
38 *
39 */
40
41#include <linux/slab.h>
42#include "pm8001_sas.h"
43#include "pm8001_chips.h"
44
45static struct scsi_transport_template *pm8001_stt;
46
47static const struct pm8001_chip_info pm8001_chips[] = {
48 [chip_8001] = { 8, &pm8001_8001_dispatch,},
49};
50static int pm8001_id;
51
52LIST_HEAD(hba_list);
53
54struct workqueue_struct *pm8001_wq;
55
56/**
57 * The main structure which LLDD must register for scsi core.
58 */
59static struct scsi_host_template pm8001_sht = {
60 .module = THIS_MODULE,
61 .name = DRV_NAME,
62 .queuecommand = sas_queuecommand,
63 .target_alloc = sas_target_alloc,
64 .slave_configure = sas_slave_configure,
65 .scan_finished = pm8001_scan_finished,
66 .scan_start = pm8001_scan_start,
67 .change_queue_depth = sas_change_queue_depth,
68 .change_queue_type = sas_change_queue_type,
69 .bios_param = sas_bios_param,
70 .can_queue = 1,
71 .cmd_per_lun = 1,
72 .this_id = -1,
73 .sg_tablesize = SG_ALL,
74 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
75 .use_clustering = ENABLE_CLUSTERING,
76 .eh_device_reset_handler = sas_eh_device_reset_handler,
77 .eh_bus_reset_handler = sas_eh_bus_reset_handler,
78 .target_destroy = sas_target_destroy,
79 .ioctl = sas_ioctl,
80 .shost_attrs = pm8001_host_attrs,
81};
82
83/**
84 * Sas layer call this function to execute specific task.
85 */
86static struct sas_domain_function_template pm8001_transport_ops = {
87 .lldd_dev_found = pm8001_dev_found,
88 .lldd_dev_gone = pm8001_dev_gone,
89
90 .lldd_execute_task = pm8001_queue_command,
91 .lldd_control_phy = pm8001_phy_control,
92
93 .lldd_abort_task = pm8001_abort_task,
94 .lldd_abort_task_set = pm8001_abort_task_set,
95 .lldd_clear_aca = pm8001_clear_aca,
96 .lldd_clear_task_set = pm8001_clear_task_set,
97 .lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset,
98 .lldd_lu_reset = pm8001_lu_reset,
99 .lldd_query_task = pm8001_query_task,
100};
101
102/**
103 *pm8001_phy_init - initiate our adapter phys
104 *@pm8001_ha: our hba structure.
105 *@phy_id: phy id.
106 */
107static void __devinit pm8001_phy_init(struct pm8001_hba_info *pm8001_ha,
108 int phy_id)
109{
110 struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
111 struct asd_sas_phy *sas_phy = &phy->sas_phy;
112 phy->phy_state = 0;
113 phy->pm8001_ha = pm8001_ha;
114 sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0;
115 sas_phy->class = SAS;
116 sas_phy->iproto = SAS_PROTOCOL_ALL;
117 sas_phy->tproto = 0;
118 sas_phy->type = PHY_TYPE_PHYSICAL;
119 sas_phy->role = PHY_ROLE_INITIATOR;
120 sas_phy->oob_mode = OOB_NOT_CONNECTED;
121 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
122 sas_phy->id = phy_id;
123 sas_phy->sas_addr = &pm8001_ha->sas_addr[0];
124 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
125 sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata;
126 sas_phy->lldd_phy = phy;
127}
128
129/**
130 *pm8001_free - free hba
131 *@pm8001_ha: our hba structure.
132 *
133 */
134static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
135{
136 int i;
137
138 if (!pm8001_ha)
139 return;
140
141 for (i = 0; i < USI_MAX_MEMCNT; i++) {
142 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
143 pci_free_consistent(pm8001_ha->pdev,
144 pm8001_ha->memoryMap.region[i].element_size,
145 pm8001_ha->memoryMap.region[i].virt_ptr,
146 pm8001_ha->memoryMap.region[i].phys_addr);
147 }
148 }
149 PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
150 if (pm8001_ha->shost)
151 scsi_host_put(pm8001_ha->shost);
152 flush_workqueue(pm8001_wq);
153 kfree(pm8001_ha->tags);
154 kfree(pm8001_ha);
155}
156
157#ifdef PM8001_USE_TASKLET
158static void pm8001_tasklet(unsigned long opaque)
159{
160 struct pm8001_hba_info *pm8001_ha;
161 pm8001_ha = (struct pm8001_hba_info *)opaque;
162 if (unlikely(!pm8001_ha))
163 BUG_ON(1);
164 PM8001_CHIP_DISP->isr(pm8001_ha);
165}
166#endif
167
168
169 /**
170 * pm8001_interrupt - when HBA originate a interrupt,we should invoke this
171 * dispatcher to handle each case.
172 * @irq: irq number.
173 * @opaque: the passed general host adapter struct
174 */
175static irqreturn_t pm8001_interrupt(int irq, void *opaque)
176{
177 struct pm8001_hba_info *pm8001_ha;
178 irqreturn_t ret = IRQ_HANDLED;
179 struct sas_ha_struct *sha = opaque;
180 pm8001_ha = sha->lldd_ha;
181 if (unlikely(!pm8001_ha))
182 return IRQ_NONE;
183 if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
184 return IRQ_NONE;
185#ifdef PM8001_USE_TASKLET
186 tasklet_schedule(&pm8001_ha->tasklet);
187#else
188 ret = PM8001_CHIP_DISP->isr(pm8001_ha);
189#endif
190 return ret;
191}
192
193/**
194 * pm8001_alloc - initiate our hba structure and 6 DMAs area.
195 * @pm8001_ha:our hba structure.
196 *
197 */
198static int __devinit pm8001_alloc(struct pm8001_hba_info *pm8001_ha)
199{
200 int i;
201 spin_lock_init(&pm8001_ha->lock);
202 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
203 pm8001_phy_init(pm8001_ha, i);
204 pm8001_ha->port[i].wide_port_phymap = 0;
205 pm8001_ha->port[i].port_attached = 0;
206 pm8001_ha->port[i].port_state = 0;
207 INIT_LIST_HEAD(&pm8001_ha->port[i].list);
208 }
209
210 pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL);
211 if (!pm8001_ha->tags)
212 goto err_out;
213 /* MPI Memory region 1 for AAP Event Log for fw */
214 pm8001_ha->memoryMap.region[AAP1].num_elements = 1;
215 pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE;
216 pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE;
217 pm8001_ha->memoryMap.region[AAP1].alignment = 32;
218
219 /* MPI Memory region 2 for IOP Event Log for fw */
220 pm8001_ha->memoryMap.region[IOP].num_elements = 1;
221 pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE;
222 pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE;
223 pm8001_ha->memoryMap.region[IOP].alignment = 32;
224
225 /* MPI Memory region 3 for consumer Index of inbound queues */
226 pm8001_ha->memoryMap.region[CI].num_elements = 1;
227 pm8001_ha->memoryMap.region[CI].element_size = 4;
228 pm8001_ha->memoryMap.region[CI].total_len = 4;
229 pm8001_ha->memoryMap.region[CI].alignment = 4;
230
231 /* MPI Memory region 4 for producer Index of outbound queues */
232 pm8001_ha->memoryMap.region[PI].num_elements = 1;
233 pm8001_ha->memoryMap.region[PI].element_size = 4;
234 pm8001_ha->memoryMap.region[PI].total_len = 4;
235 pm8001_ha->memoryMap.region[PI].alignment = 4;
236
237 /* MPI Memory region 5 inbound queues */
238 pm8001_ha->memoryMap.region[IB].num_elements = PM8001_MPI_QUEUE;
239 pm8001_ha->memoryMap.region[IB].element_size = 64;
240 pm8001_ha->memoryMap.region[IB].total_len = PM8001_MPI_QUEUE * 64;
241 pm8001_ha->memoryMap.region[IB].alignment = 64;
242
243 /* MPI Memory region 6 outbound queues */
244 pm8001_ha->memoryMap.region[OB].num_elements = PM8001_MPI_QUEUE;
245 pm8001_ha->memoryMap.region[OB].element_size = 64;
246 pm8001_ha->memoryMap.region[OB].total_len = PM8001_MPI_QUEUE * 64;
247 pm8001_ha->memoryMap.region[OB].alignment = 64;
248
249 /* Memory region write DMA*/
250 pm8001_ha->memoryMap.region[NVMD].num_elements = 1;
251 pm8001_ha->memoryMap.region[NVMD].element_size = 4096;
252 pm8001_ha->memoryMap.region[NVMD].total_len = 4096;
253 /* Memory region for devices*/
254 pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1;
255 pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES *
256 sizeof(struct pm8001_device);
257 pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES *
258 sizeof(struct pm8001_device);
259
260 /* Memory region for ccb_info*/
261 pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1;
262 pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB *
263 sizeof(struct pm8001_ccb_info);
264 pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB *
265 sizeof(struct pm8001_ccb_info);
266
267 for (i = 0; i < USI_MAX_MEMCNT; i++) {
268 if (pm8001_mem_alloc(pm8001_ha->pdev,
269 &pm8001_ha->memoryMap.region[i].virt_ptr,
270 &pm8001_ha->memoryMap.region[i].phys_addr,
271 &pm8001_ha->memoryMap.region[i].phys_addr_hi,
272 &pm8001_ha->memoryMap.region[i].phys_addr_lo,
273 pm8001_ha->memoryMap.region[i].total_len,
274 pm8001_ha->memoryMap.region[i].alignment) != 0) {
275 PM8001_FAIL_DBG(pm8001_ha,
276 pm8001_printk("Mem%d alloc failed\n",
277 i));
278 goto err_out;
279 }
280 }
281
282 pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr;
283 for (i = 0; i < PM8001_MAX_DEVICES; i++) {
284 pm8001_ha->devices[i].dev_type = NO_DEVICE;
285 pm8001_ha->devices[i].id = i;
286 pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
287 pm8001_ha->devices[i].running_req = 0;
288 }
289 pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr;
290 for (i = 0; i < PM8001_MAX_CCB; i++) {
291 pm8001_ha->ccb_info[i].ccb_dma_handle =
292 pm8001_ha->memoryMap.region[CCB_MEM].phys_addr +
293 i * sizeof(struct pm8001_ccb_info);
294 pm8001_ha->ccb_info[i].task = NULL;
295 pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
296 pm8001_ha->ccb_info[i].device = NULL;
297 ++pm8001_ha->tags_num;
298 }
299 pm8001_ha->flags = PM8001F_INIT_TIME;
300 /* Initialize tags */
301 pm8001_tag_init(pm8001_ha);
302 return 0;
303err_out:
304 return 1;
305}
306
307/**
308 * pm8001_ioremap - remap the pci high physical address to kernal virtual
309 * address so that we can access them.
310 * @pm8001_ha:our hba structure.
311 */
312static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
313{
314 u32 bar;
315 u32 logicalBar = 0;
316 struct pci_dev *pdev;
317
318 pdev = pm8001_ha->pdev;
319 /* map pci mem (PMC pci base 0-3)*/
320 for (bar = 0; bar < 6; bar++) {
321 /*
322 ** logical BARs for SPC:
323 ** bar 0 and 1 - logical BAR0
324 ** bar 2 and 3 - logical BAR1
325 ** bar4 - logical BAR2
326 ** bar5 - logical BAR3
327 ** Skip the appropriate assignments:
328 */
329 if ((bar == 1) || (bar == 3))
330 continue;
331 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
332 pm8001_ha->io_mem[logicalBar].membase =
333 pci_resource_start(pdev, bar);
334 pm8001_ha->io_mem[logicalBar].membase &=
335 (u32)PCI_BASE_ADDRESS_MEM_MASK;
336 pm8001_ha->io_mem[logicalBar].memsize =
337 pci_resource_len(pdev, bar);
338 pm8001_ha->io_mem[logicalBar].memvirtaddr =
339 ioremap(pm8001_ha->io_mem[logicalBar].membase,
340 pm8001_ha->io_mem[logicalBar].memsize);
341 PM8001_INIT_DBG(pm8001_ha,
342 pm8001_printk("PCI: bar %d, logicalBar %d "
343 "virt_addr=%lx,len=%d\n", bar, logicalBar,
344 (unsigned long)
345 pm8001_ha->io_mem[logicalBar].memvirtaddr,
346 pm8001_ha->io_mem[logicalBar].memsize));
347 } else {
348 pm8001_ha->io_mem[logicalBar].membase = 0;
349 pm8001_ha->io_mem[logicalBar].memsize = 0;
350 pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
351 }
352 logicalBar++;
353 }
354 return 0;
355}
356
357/**
358 * pm8001_pci_alloc - initialize our ha card structure
359 * @pdev: pci device.
360 * @ent: ent
361 * @shost: scsi host struct which has been initialized before.
362 */
363static struct pm8001_hba_info *__devinit
364pm8001_pci_alloc(struct pci_dev *pdev, u32 chip_id, struct Scsi_Host *shost)
365{
366 struct pm8001_hba_info *pm8001_ha;
367 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
368
369
370 pm8001_ha = sha->lldd_ha;
371 if (!pm8001_ha)
372 return NULL;
373
374 pm8001_ha->pdev = pdev;
375 pm8001_ha->dev = &pdev->dev;
376 pm8001_ha->chip_id = chip_id;
377 pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id];
378 pm8001_ha->irq = pdev->irq;
379 pm8001_ha->sas = sha;
380 pm8001_ha->shost = shost;
381 pm8001_ha->id = pm8001_id++;
382 pm8001_ha->logging_level = 0x01;
383 sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
384#ifdef PM8001_USE_TASKLET
385 tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
386 (unsigned long)pm8001_ha);
387#endif
388 pm8001_ioremap(pm8001_ha);
389 if (!pm8001_alloc(pm8001_ha))
390 return pm8001_ha;
391 pm8001_free(pm8001_ha);
392 return NULL;
393}
394
395/**
396 * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit
397 * @pdev: pci device.
398 */
399static int pci_go_44(struct pci_dev *pdev)
400{
401 int rc;
402
403 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) {
404 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44));
405 if (rc) {
406 rc = pci_set_consistent_dma_mask(pdev,
407 DMA_BIT_MASK(32));
408 if (rc) {
409 dev_printk(KERN_ERR, &pdev->dev,
410 "44-bit DMA enable failed\n");
411 return rc;
412 }
413 }
414 } else {
415 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
416 if (rc) {
417 dev_printk(KERN_ERR, &pdev->dev,
418 "32-bit DMA enable failed\n");
419 return rc;
420 }
421 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
422 if (rc) {
423 dev_printk(KERN_ERR, &pdev->dev,
424 "32-bit consistent DMA enable failed\n");
425 return rc;
426 }
427 }
428 return rc;
429}
430
431/**
432 * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them.
433 * @shost: scsi host which has been allocated outside.
434 * @chip_info: our ha struct.
435 */
436static int __devinit pm8001_prep_sas_ha_init(struct Scsi_Host * shost,
437 const struct pm8001_chip_info *chip_info)
438{
439 int phy_nr, port_nr;
440 struct asd_sas_phy **arr_phy;
441 struct asd_sas_port **arr_port;
442 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
443
444 phy_nr = chip_info->n_phy;
445 port_nr = phy_nr;
446 memset(sha, 0x00, sizeof(*sha));
447 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
448 if (!arr_phy)
449 goto exit;
450 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
451 if (!arr_port)
452 goto exit_free2;
453
454 sha->sas_phy = arr_phy;
455 sha->sas_port = arr_port;
456 sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL);
457 if (!sha->lldd_ha)
458 goto exit_free1;
459
460 shost->transportt = pm8001_stt;
461 shost->max_id = PM8001_MAX_DEVICES;
462 shost->max_lun = 8;
463 shost->max_channel = 0;
464 shost->unique_id = pm8001_id;
465 shost->max_cmd_len = 16;
466 shost->can_queue = PM8001_CAN_QUEUE;
467 shost->cmd_per_lun = 32;
468 return 0;
469exit_free1:
470 kfree(arr_port);
471exit_free2:
472 kfree(arr_phy);
473exit:
474 return -1;
475}
476
477/**
478 * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas
479 * @shost: scsi host which has been allocated outside
480 * @chip_info: our ha struct.
481 */
482static void __devinit pm8001_post_sas_ha_init(struct Scsi_Host *shost,
483 const struct pm8001_chip_info *chip_info)
484{
485 int i = 0;
486 struct pm8001_hba_info *pm8001_ha;
487 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
488
489 pm8001_ha = sha->lldd_ha;
490 for (i = 0; i < chip_info->n_phy; i++) {
491 sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy;
492 sha->sas_port[i] = &pm8001_ha->port[i].sas_port;
493 }
494 sha->sas_ha_name = DRV_NAME;
495 sha->dev = pm8001_ha->dev;
496
497 sha->lldd_module = THIS_MODULE;
498 sha->sas_addr = &pm8001_ha->sas_addr[0];
499 sha->num_phys = chip_info->n_phy;
500 sha->lldd_max_execute_num = 1;
501 sha->lldd_queue_size = PM8001_CAN_QUEUE;
502 sha->core.shost = shost;
503}
504
505/**
506 * pm8001_init_sas_add - initialize sas address
507 * @chip_info: our ha struct.
508 *
509 * Currently we just set the fixed SAS address to our HBA,for manufacture,
510 * it should read from the EEPROM
511 */
512static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
513{
514 u8 i;
515#ifdef PM8001_READ_VPD
516 DECLARE_COMPLETION_ONSTACK(completion);
517 struct pm8001_ioctl_payload payload;
518 pm8001_ha->nvmd_completion = &completion;
519 payload.minor_function = 0;
520 payload.length = 128;
521 payload.func_specific = kzalloc(128, GFP_KERNEL);
522 PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
523 wait_for_completion(&completion);
524 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
525 memcpy(&pm8001_ha->phy[i].dev_sas_addr, pm8001_ha->sas_addr,
526 SAS_ADDR_SIZE);
527 PM8001_INIT_DBG(pm8001_ha,
528 pm8001_printk("phy %d sas_addr = %016llx \n", i,
529 pm8001_ha->phy[i].dev_sas_addr));
530 }
531#else
532 for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
533 pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
534 pm8001_ha->phy[i].dev_sas_addr =
535 cpu_to_be64((u64)
536 (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
537 }
538 memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
539 SAS_ADDR_SIZE);
540#endif
541}
542
543#ifdef PM8001_USE_MSIX
544/**
545 * pm8001_setup_msix - enable MSI-X interrupt
546 * @chip_info: our ha struct.
547 * @irq_handler: irq_handler
548 */
549static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha,
550 irq_handler_t irq_handler)
551{
552 u32 i = 0, j = 0;
553 u32 number_of_intr = 1;
554 int flag = 0;
555 u32 max_entry;
556 int rc;
557 max_entry = sizeof(pm8001_ha->msix_entries) /
558 sizeof(pm8001_ha->msix_entries[0]);
559 flag |= IRQF_DISABLED;
560 for (i = 0; i < max_entry ; i++)
561 pm8001_ha->msix_entries[i].entry = i;
562 rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
563 number_of_intr);
564 pm8001_ha->number_of_intr = number_of_intr;
565 if (!rc) {
566 for (i = 0; i < number_of_intr; i++) {
567 if (request_irq(pm8001_ha->msix_entries[i].vector,
568 irq_handler, flag, DRV_NAME,
569 SHOST_TO_SAS_HA(pm8001_ha->shost))) {
570 for (j = 0; j < i; j++)
571 free_irq(
572 pm8001_ha->msix_entries[j].vector,
573 SHOST_TO_SAS_HA(pm8001_ha->shost));
574 pci_disable_msix(pm8001_ha->pdev);
575 break;
576 }
577 }
578 }
579 return rc;
580}
581#endif
582
583/**
584 * pm8001_request_irq - register interrupt
585 * @chip_info: our ha struct.
586 */
587static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
588{
589 struct pci_dev *pdev;
590 irq_handler_t irq_handler = pm8001_interrupt;
591 int rc;
592
593 pdev = pm8001_ha->pdev;
594
595#ifdef PM8001_USE_MSIX
596 if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
597 return pm8001_setup_msix(pm8001_ha, irq_handler);
598 else
599 goto intx;
600#endif
601
602intx:
603 /* initialize the INT-X interrupt */
604 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME,
605 SHOST_TO_SAS_HA(pm8001_ha->shost));
606 return rc;
607}
608
609/**
610 * pm8001_pci_probe - probe supported device
611 * @pdev: pci device which kernel has been prepared for.
612 * @ent: pci device id
613 *
614 * This function is the main initialization function, when register a new
615 * pci driver it is invoked, all struct an hardware initilization should be done
616 * here, also, register interrupt
617 */
618static int __devinit pm8001_pci_probe(struct pci_dev *pdev,
619 const struct pci_device_id *ent)
620{
621 unsigned int rc;
622 u32 pci_reg;
623 struct pm8001_hba_info *pm8001_ha;
624 struct Scsi_Host *shost = NULL;
625 const struct pm8001_chip_info *chip;
626
627 dev_printk(KERN_INFO, &pdev->dev,
628 "pm8001: driver version %s\n", DRV_VERSION);
629 rc = pci_enable_device(pdev);
630 if (rc)
631 goto err_out_enable;
632 pci_set_master(pdev);
633 /*
634 * Enable pci slot busmaster by setting pci command register.
635 * This is required by FW for Cyclone card.
636 */
637
638 pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg);
639 pci_reg |= 0x157;
640 pci_write_config_dword(pdev, PCI_COMMAND, pci_reg);
641 rc = pci_request_regions(pdev, DRV_NAME);
642 if (rc)
643 goto err_out_disable;
644 rc = pci_go_44(pdev);
645 if (rc)
646 goto err_out_regions;
647
648 shost = scsi_host_alloc(&pm8001_sht, sizeof(void *));
649 if (!shost) {
650 rc = -ENOMEM;
651 goto err_out_regions;
652 }
653 chip = &pm8001_chips[ent->driver_data];
654 SHOST_TO_SAS_HA(shost) =
655 kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL);
656 if (!SHOST_TO_SAS_HA(shost)) {
657 rc = -ENOMEM;
658 goto err_out_free_host;
659 }
660
661 rc = pm8001_prep_sas_ha_init(shost, chip);
662 if (rc) {
663 rc = -ENOMEM;
664 goto err_out_free;
665 }
666 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
667 pm8001_ha = pm8001_pci_alloc(pdev, chip_8001, shost);
668 if (!pm8001_ha) {
669 rc = -ENOMEM;
670 goto err_out_free;
671 }
672 list_add_tail(&pm8001_ha->list, &hba_list);
673 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
674 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
675 if (rc)
676 goto err_out_ha_free;
677
678 rc = scsi_add_host(shost, &pdev->dev);
679 if (rc)
680 goto err_out_ha_free;
681 rc = pm8001_request_irq(pm8001_ha);
682 if (rc)
683 goto err_out_shost;
684
685 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
686 pm8001_init_sas_add(pm8001_ha);
687 pm8001_post_sas_ha_init(shost, chip);
688 rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
689 if (rc)
690 goto err_out_shost;
691 scsi_scan_host(pm8001_ha->shost);
692 return 0;
693
694err_out_shost:
695 scsi_remove_host(pm8001_ha->shost);
696err_out_ha_free:
697 pm8001_free(pm8001_ha);
698err_out_free:
699 kfree(SHOST_TO_SAS_HA(shost));
700err_out_free_host:
701 kfree(shost);
702err_out_regions:
703 pci_release_regions(pdev);
704err_out_disable:
705 pci_disable_device(pdev);
706err_out_enable:
707 return rc;
708}
709
710static void __devexit pm8001_pci_remove(struct pci_dev *pdev)
711{
712 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
713 struct pm8001_hba_info *pm8001_ha;
714 int i;
715 pm8001_ha = sha->lldd_ha;
716 pci_set_drvdata(pdev, NULL);
717 sas_unregister_ha(sha);
718 sas_remove_host(pm8001_ha->shost);
719 list_del(&pm8001_ha->list);
720 scsi_remove_host(pm8001_ha->shost);
721 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
722 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
723
724#ifdef PM8001_USE_MSIX
725 for (i = 0; i < pm8001_ha->number_of_intr; i++)
726 synchronize_irq(pm8001_ha->msix_entries[i].vector);
727 for (i = 0; i < pm8001_ha->number_of_intr; i++)
728 free_irq(pm8001_ha->msix_entries[i].vector, sha);
729 pci_disable_msix(pdev);
730#else
731 free_irq(pm8001_ha->irq, sha);
732#endif
733#ifdef PM8001_USE_TASKLET
734 tasklet_kill(&pm8001_ha->tasklet);
735#endif
736 pm8001_free(pm8001_ha);
737 kfree(sha->sas_phy);
738 kfree(sha->sas_port);
739 kfree(sha);
740 pci_release_regions(pdev);
741 pci_disable_device(pdev);
742}
743
744/**
745 * pm8001_pci_suspend - power management suspend main entry point
746 * @pdev: PCI device struct
747 * @state: PM state change to (usually PCI_D3)
748 *
749 * Returns 0 success, anything else error.
750 */
751static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
752{
753 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
754 struct pm8001_hba_info *pm8001_ha;
755 int i , pos;
756 u32 device_state;
757 pm8001_ha = sha->lldd_ha;
758 flush_workqueue(pm8001_wq);
759 scsi_block_requests(pm8001_ha->shost);
760 pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
761 if (pos == 0) {
762 printk(KERN_ERR " PCI PM not supported\n");
763 return -ENODEV;
764 }
765 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
766 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
767#ifdef PM8001_USE_MSIX
768 for (i = 0; i < pm8001_ha->number_of_intr; i++)
769 synchronize_irq(pm8001_ha->msix_entries[i].vector);
770 for (i = 0; i < pm8001_ha->number_of_intr; i++)
771 free_irq(pm8001_ha->msix_entries[i].vector, sha);
772 pci_disable_msix(pdev);
773#else
774 free_irq(pm8001_ha->irq, sha);
775#endif
776#ifdef PM8001_USE_TASKLET
777 tasklet_kill(&pm8001_ha->tasklet);
778#endif
779 device_state = pci_choose_state(pdev, state);
780 pm8001_printk("pdev=0x%p, slot=%s, entering "
781 "operating state [D%d]\n", pdev,
782 pm8001_ha->name, device_state);
783 pci_save_state(pdev);
784 pci_disable_device(pdev);
785 pci_set_power_state(pdev, device_state);
786 return 0;
787}
788
789/**
790 * pm8001_pci_resume - power management resume main entry point
791 * @pdev: PCI device struct
792 *
793 * Returns 0 success, anything else error.
794 */
795static int pm8001_pci_resume(struct pci_dev *pdev)
796{
797 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
798 struct pm8001_hba_info *pm8001_ha;
799 int rc;
800 u32 device_state;
801 pm8001_ha = sha->lldd_ha;
802 device_state = pdev->current_state;
803
804 pm8001_printk("pdev=0x%p, slot=%s, resuming from previous "
805 "operating state [D%d]\n", pdev, pm8001_ha->name, device_state);
806
807 pci_set_power_state(pdev, PCI_D0);
808 pci_enable_wake(pdev, PCI_D0, 0);
809 pci_restore_state(pdev);
810 rc = pci_enable_device(pdev);
811 if (rc) {
812 pm8001_printk("slot=%s Enable device failed during resume\n",
813 pm8001_ha->name);
814 goto err_out_enable;
815 }
816
817 pci_set_master(pdev);
818 rc = pci_go_44(pdev);
819 if (rc)
820 goto err_out_disable;
821
822 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
823 rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
824 if (rc)
825 goto err_out_disable;
826 PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
827 rc = pm8001_request_irq(pm8001_ha);
828 if (rc)
829 goto err_out_disable;
830 #ifdef PM8001_USE_TASKLET
831 tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
832 (unsigned long)pm8001_ha);
833 #endif
834 PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
835 scsi_unblock_requests(pm8001_ha->shost);
836 return 0;
837
838err_out_disable:
839 scsi_remove_host(pm8001_ha->shost);
840 pci_disable_device(pdev);
841err_out_enable:
842 return rc;
843}
844
845static struct pci_device_id __devinitdata pm8001_pci_table[] = {
846 {
847 PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001
848 },
849 {
850 PCI_DEVICE(0x117c, 0x0042),
851 .driver_data = chip_8001
852 },
853 {} /* terminate list */
854};
855
856static struct pci_driver pm8001_pci_driver = {
857 .name = DRV_NAME,
858 .id_table = pm8001_pci_table,
859 .probe = pm8001_pci_probe,
860 .remove = __devexit_p(pm8001_pci_remove),
861 .suspend = pm8001_pci_suspend,
862 .resume = pm8001_pci_resume,
863};
864
865/**
866 * pm8001_init - initialize scsi transport template
867 */
868static int __init pm8001_init(void)
869{
870 int rc = -ENOMEM;
871
872 pm8001_wq = alloc_workqueue("pm8001", 0, 0);
873 if (!pm8001_wq)
874 goto err;
875
876 pm8001_id = 0;
877 pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
878 if (!pm8001_stt)
879 goto err_wq;
880 rc = pci_register_driver(&pm8001_pci_driver);
881 if (rc)
882 goto err_tp;
883 return 0;
884
885err_tp:
886 sas_release_transport(pm8001_stt);
887err_wq:
888 destroy_workqueue(pm8001_wq);
889err:
890 return rc;
891}
892
893static void __exit pm8001_exit(void)
894{
895 pci_unregister_driver(&pm8001_pci_driver);
896 sas_release_transport(pm8001_stt);
897 destroy_workqueue(pm8001_wq);
898}
899
900module_init(pm8001_init);
901module_exit(pm8001_exit);
902
903MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
904MODULE_DESCRIPTION("PMC-Sierra PM8001 SAS/SATA controller driver");
905MODULE_VERSION(DRV_VERSION);
906MODULE_LICENSE("GPL");
907MODULE_DEVICE_TABLE(pci, pm8001_pci_table);
908