Commit | Line | Data |
---|---|---|
2496af39 MED |
1 | /* |
2 | * linux/drivers/message/fusion/mptfc.c | |
3 | * For use with LSI Logic PCI chip/adapter(s) | |
4 | * running LSI Logic Fusion MPT (Message Passing Technology) firmware. | |
5 | * | |
6 | * Copyright (c) 1999-2005 LSI Logic Corporation | |
7 | * (mailto:mpt_linux_developer@lsil.com) | |
8 | * | |
9 | */ | |
10 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
11 | /* | |
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; version 2 of the License. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | NO WARRANTY | |
22 | THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR | |
23 | CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT | |
24 | LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, | |
25 | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is | |
26 | solely responsible for determining the appropriateness of using and | |
27 | distributing the Program and assumes all risks associated with its | |
28 | exercise of rights under this Agreement, including but not limited to | |
29 | the risks and costs of program errors, damage to or loss of data, | |
30 | programs or equipment, and unavailability or interruption of operations. | |
31 | ||
32 | DISCLAIMER OF LIABILITY | |
33 | NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY | |
34 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
35 | DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND | |
36 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
37 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
38 | USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED | |
39 | HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES | |
40 | ||
41 | You should have received a copy of the GNU General Public License | |
42 | along with this program; if not, write to the Free Software | |
43 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
44 | */ | |
45 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
46 | #include "linux_compat.h" /* linux-2.6 tweaks */ | |
47 | #include <linux/module.h> | |
48 | #include <linux/kernel.h> | |
49 | #include <linux/init.h> | |
50 | #include <linux/errno.h> | |
51 | #include <linux/kdev_t.h> | |
52 | #include <linux/blkdev.h> | |
53 | #include <linux/delay.h> /* for mdelay */ | |
54 | #include <linux/interrupt.h> /* needed for in_interrupt() proto */ | |
55 | #include <linux/reboot.h> /* notifier code */ | |
56 | #include <linux/sched.h> | |
57 | #include <linux/workqueue.h> | |
05e8ec17 | 58 | #include <linux/sort.h> |
2496af39 MED |
59 | |
60 | #include <scsi/scsi.h> | |
61 | #include <scsi/scsi_cmnd.h> | |
62 | #include <scsi/scsi_device.h> | |
63 | #include <scsi/scsi_host.h> | |
64 | #include <scsi/scsi_tcq.h> | |
05e8ec17 | 65 | #include <scsi/scsi_transport_fc.h> |
2496af39 MED |
66 | |
67 | #include "mptbase.h" | |
68 | #include "mptscsih.h" | |
69 | ||
70 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
71 | #define my_NAME "Fusion MPT FC Host driver" | |
72 | #define my_VERSION MPT_LINUX_VERSION_COMMON | |
73 | #define MYNAM "mptfc" | |
74 | ||
75 | MODULE_AUTHOR(MODULEAUTHOR); | |
76 | MODULE_DESCRIPTION(my_NAME); | |
77 | MODULE_LICENSE("GPL"); | |
78 | ||
79 | /* Command line args */ | |
80 | static int mpt_pq_filter = 0; | |
81 | module_param(mpt_pq_filter, int, 0); | |
82 | MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)"); | |
83 | ||
05e8ec17 MR |
84 | #define MPTFC_DEV_LOSS_TMO (60) |
85 | static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ | |
86 | module_param(mptfc_dev_loss_tmo, int, 0); | |
87 | MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " | |
88 | " transport to wait for an rport to " | |
89 | " return following a device loss event." | |
90 | " Default=60."); | |
91 | ||
2496af39 MED |
92 | static int mptfcDoneCtx = -1; |
93 | static int mptfcTaskCtx = -1; | |
94 | static int mptfcInternalCtx = -1; /* Used only for internal commands */ | |
95 | ||
05e8ec17 MR |
96 | int mptfc_slave_alloc(struct scsi_device *device); |
97 | static int mptfc_qcmd(struct scsi_cmnd *SCpnt, | |
98 | void (*done)(struct scsi_cmnd *)); | |
99 | ||
100 | static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); | |
101 | static void __devexit mptfc_remove(struct pci_dev *pdev); | |
102 | ||
2496af39 | 103 | static struct scsi_host_template mptfc_driver_template = { |
f78496da | 104 | .module = THIS_MODULE, |
2496af39 MED |
105 | .proc_name = "mptfc", |
106 | .proc_info = mptscsih_proc_info, | |
107 | .name = "MPT FC Host", | |
108 | .info = mptscsih_info, | |
05e8ec17 | 109 | .queuecommand = mptfc_qcmd, |
c7c82987 | 110 | .target_alloc = mptscsih_target_alloc, |
05e8ec17 | 111 | .slave_alloc = mptfc_slave_alloc, |
2496af39 | 112 | .slave_configure = mptscsih_slave_configure, |
c7c82987 | 113 | .target_destroy = mptscsih_target_destroy, |
2496af39 | 114 | .slave_destroy = mptscsih_slave_destroy, |
6e3815ba | 115 | .change_queue_depth = mptscsih_change_queue_depth, |
2496af39 MED |
116 | .eh_abort_handler = mptscsih_abort, |
117 | .eh_device_reset_handler = mptscsih_dev_reset, | |
118 | .eh_bus_reset_handler = mptscsih_bus_reset, | |
119 | .eh_host_reset_handler = mptscsih_host_reset, | |
120 | .bios_param = mptscsih_bios_param, | |
121 | .can_queue = MPT_FC_CAN_QUEUE, | |
122 | .this_id = -1, | |
123 | .sg_tablesize = MPT_SCSI_SG_DEPTH, | |
124 | .max_sectors = 8192, | |
125 | .cmd_per_lun = 7, | |
126 | .use_clustering = ENABLE_CLUSTERING, | |
2496af39 MED |
127 | }; |
128 | ||
129 | /**************************************************************************** | |
130 | * Supported hardware | |
131 | */ | |
132 | ||
133 | static struct pci_device_id mptfc_pci_table[] = { | |
134 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909, | |
135 | PCI_ANY_ID, PCI_ANY_ID }, | |
136 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919, | |
137 | PCI_ANY_ID, PCI_ANY_ID }, | |
138 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929, | |
139 | PCI_ANY_ID, PCI_ANY_ID }, | |
140 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X, | |
141 | PCI_ANY_ID, PCI_ANY_ID }, | |
142 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X, | |
143 | PCI_ANY_ID, PCI_ANY_ID }, | |
3fadc59d MED |
144 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X, |
145 | PCI_ANY_ID, PCI_ANY_ID }, | |
146 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X, | |
147 | PCI_ANY_ID, PCI_ANY_ID }, | |
6d5b0c31 ME |
148 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES, |
149 | PCI_ANY_ID, PCI_ANY_ID }, | |
2496af39 MED |
150 | {0} /* Terminating entry */ |
151 | }; | |
152 | MODULE_DEVICE_TABLE(pci, mptfc_pci_table); | |
153 | ||
05e8ec17 MR |
154 | static struct scsi_transport_template *mptfc_transport_template = NULL; |
155 | ||
156 | struct fc_function_template mptfc_transport_functions = { | |
157 | .dd_fcrport_size = 8, | |
158 | .show_host_node_name = 1, | |
159 | .show_host_port_name = 1, | |
160 | .show_host_supported_classes = 1, | |
161 | .show_host_port_id = 1, | |
162 | .show_rport_supported_classes = 1, | |
163 | .show_starget_node_name = 1, | |
164 | .show_starget_port_name = 1, | |
165 | .show_starget_port_id = 1, | |
166 | .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, | |
167 | .show_rport_dev_loss_tmo = 1, | |
168 | ||
169 | }; | |
170 | ||
171 | /* FIXME! values controlling firmware RESCAN event | |
172 | * need to be set low to allow dev_loss_tmo to | |
173 | * work as expected. Currently, firmware doesn't | |
174 | * notify driver of RESCAN event until some number | |
175 | * of seconds elapse. This value can be set via | |
176 | * lsiutil. | |
177 | */ | |
178 | static void | |
179 | mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) | |
180 | { | |
181 | if (timeout > 0) | |
182 | rport->dev_loss_tmo = timeout; | |
183 | else | |
184 | rport->dev_loss_tmo = mptfc_dev_loss_tmo; | |
185 | } | |
186 | ||
187 | static int | |
188 | mptfc_FcDevPage0_cmp_func(const void *a, const void *b) | |
189 | { | |
190 | FCDevicePage0_t **aa = (FCDevicePage0_t **)a; | |
191 | FCDevicePage0_t **bb = (FCDevicePage0_t **)b; | |
192 | ||
193 | if ((*aa)->CurrentBus == (*bb)->CurrentBus) { | |
194 | if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) | |
195 | return 0; | |
196 | if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) | |
197 | return -1; | |
198 | return 1; | |
199 | } | |
200 | if ((*aa)->CurrentBus < (*bb)->CurrentBus) | |
201 | return -1; | |
202 | return 1; | |
203 | } | |
204 | ||
205 | static int | |
206 | mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, | |
207 | void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) | |
208 | { | |
209 | ConfigPageHeader_t hdr; | |
210 | CONFIGPARMS cfg; | |
211 | FCDevicePage0_t *ppage0_alloc, *fc; | |
212 | dma_addr_t page0_dma; | |
213 | int data_sz; | |
214 | int ii; | |
215 | ||
216 | FCDevicePage0_t *p0_array=NULL, *p_p0; | |
217 | FCDevicePage0_t **pp0_array=NULL, **p_pp0; | |
218 | ||
219 | int rc = -ENOMEM; | |
220 | U32 port_id = 0xffffff; | |
221 | int num_targ = 0; | |
222 | int max_bus = ioc->facts.MaxBuses; | |
223 | int max_targ = ioc->facts.MaxDevices; | |
224 | ||
225 | if (max_bus == 0 || max_targ == 0) | |
226 | goto out; | |
227 | ||
228 | data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; | |
229 | p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); | |
230 | if (!p0_array) | |
231 | goto out; | |
232 | ||
233 | data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; | |
234 | p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); | |
235 | if (!pp0_array) | |
236 | goto out; | |
237 | ||
238 | do { | |
239 | /* Get FC Device Page 0 header */ | |
240 | hdr.PageVersion = 0; | |
241 | hdr.PageLength = 0; | |
242 | hdr.PageNumber = 0; | |
243 | hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; | |
244 | cfg.cfghdr.hdr = &hdr; | |
245 | cfg.physAddr = -1; | |
246 | cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; | |
247 | cfg.dir = 0; | |
248 | cfg.pageAddr = port_id; | |
249 | cfg.timeout = 0; | |
250 | ||
251 | if ((rc = mpt_config(ioc, &cfg)) != 0) | |
252 | break; | |
253 | ||
254 | if (hdr.PageLength <= 0) | |
255 | break; | |
256 | ||
257 | data_sz = hdr.PageLength * 4; | |
258 | ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, | |
259 | &page0_dma); | |
260 | rc = -ENOMEM; | |
261 | if (!ppage0_alloc) | |
262 | break; | |
263 | ||
264 | cfg.physAddr = page0_dma; | |
265 | cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; | |
266 | ||
267 | if ((rc = mpt_config(ioc, &cfg)) == 0) { | |
268 | ppage0_alloc->PortIdentifier = | |
269 | le32_to_cpu(ppage0_alloc->PortIdentifier); | |
270 | ||
271 | ppage0_alloc->WWNN.Low = | |
272 | le32_to_cpu(ppage0_alloc->WWNN.Low); | |
273 | ||
274 | ppage0_alloc->WWNN.High = | |
275 | le32_to_cpu(ppage0_alloc->WWNN.High); | |
276 | ||
277 | ppage0_alloc->WWPN.Low = | |
278 | le32_to_cpu(ppage0_alloc->WWPN.Low); | |
279 | ||
280 | ppage0_alloc->WWPN.High = | |
281 | le32_to_cpu(ppage0_alloc->WWPN.High); | |
282 | ||
283 | ppage0_alloc->BBCredit = | |
284 | le16_to_cpu(ppage0_alloc->BBCredit); | |
285 | ||
286 | ppage0_alloc->MaxRxFrameSize = | |
287 | le16_to_cpu(ppage0_alloc->MaxRxFrameSize); | |
288 | ||
289 | port_id = ppage0_alloc->PortIdentifier; | |
290 | num_targ++; | |
291 | *p_p0 = *ppage0_alloc; /* save data */ | |
292 | *p_pp0++ = p_p0++; /* save addr */ | |
293 | } | |
294 | pci_free_consistent(ioc->pcidev, data_sz, | |
295 | (u8 *) ppage0_alloc, page0_dma); | |
296 | if (rc != 0) | |
297 | break; | |
298 | ||
299 | } while (port_id <= 0xff0000); | |
300 | ||
301 | if (num_targ) { | |
302 | /* sort array */ | |
303 | if (num_targ > 1) | |
304 | sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), | |
305 | mptfc_FcDevPage0_cmp_func, NULL); | |
306 | /* call caller's func for each targ */ | |
307 | for (ii = 0; ii < num_targ; ii++) { | |
308 | fc = *(pp0_array+ii); | |
309 | func(ioc, ioc_port, fc); | |
310 | } | |
311 | } | |
312 | ||
313 | out: | |
314 | if (pp0_array) | |
315 | kfree(pp0_array); | |
316 | if (p0_array) | |
317 | kfree(p0_array); | |
318 | return rc; | |
319 | } | |
320 | ||
321 | static int | |
322 | mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) | |
323 | { | |
324 | /* not currently usable */ | |
325 | if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | | |
326 | MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) | |
327 | return -1; | |
328 | ||
329 | if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) | |
330 | return -1; | |
331 | ||
332 | if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) | |
333 | return -1; | |
334 | ||
335 | /* | |
336 | * board data structure already normalized to platform endianness | |
337 | * shifted to avoid unaligned access on 64 bit architecture | |
338 | */ | |
339 | rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; | |
340 | rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; | |
341 | rid->port_id = pg0->PortIdentifier; | |
342 | rid->roles = FC_RPORT_ROLE_UNKNOWN; | |
343 | rid->roles |= FC_RPORT_ROLE_FCP_TARGET; | |
344 | if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) | |
345 | rid->roles |= FC_RPORT_ROLE_FCP_INITIATOR; | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | static void | |
351 | mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) | |
352 | { | |
353 | struct fc_rport_identifiers rport_ids; | |
354 | struct fc_rport *rport; | |
355 | struct mptfc_rport_info *ri; | |
356 | int match = 0; | |
357 | u64 port_name; | |
358 | unsigned long flags; | |
359 | ||
360 | if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) | |
361 | return; | |
362 | ||
363 | /* scan list looking for a match */ | |
364 | spin_lock_irqsave(&ioc->fc_rport_lock, flags); | |
365 | list_for_each_entry(ri, &ioc->fc_rports, list) { | |
366 | port_name = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; | |
367 | if (port_name == rport_ids.port_name) { /* match */ | |
368 | list_move_tail(&ri->list, &ioc->fc_rports); | |
369 | match = 1; | |
370 | break; | |
371 | } | |
372 | } | |
373 | if (!match) { /* allocate one */ | |
374 | spin_unlock_irqrestore(&ioc->fc_rport_lock, flags); | |
375 | ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); | |
376 | if (!ri) | |
377 | return; | |
378 | spin_lock_irqsave(&ioc->fc_rport_lock, flags); | |
379 | list_add_tail(&ri->list, &ioc->fc_rports); | |
380 | } | |
381 | ||
382 | ri->pg0 = *pg0; /* add/update pg0 data */ | |
383 | ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; | |
384 | ||
385 | if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { | |
386 | ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; | |
387 | spin_unlock_irqrestore(&ioc->fc_rport_lock, flags); | |
388 | rport = fc_remote_port_add(ioc->sh,channel, &rport_ids); | |
389 | spin_lock_irqsave(&ioc->fc_rport_lock, flags); | |
390 | if (rport) { | |
391 | if (*((struct mptfc_rport_info **)rport->dd_data) != ri) { | |
392 | ri->flags &= ~MPT_RPORT_INFO_FLAGS_MAPPED_VDEV; | |
393 | ri->vdev = NULL; | |
394 | ri->rport = rport; | |
395 | *((struct mptfc_rport_info **)rport->dd_data) = ri; | |
396 | } | |
397 | rport->dev_loss_tmo = mptfc_dev_loss_tmo; | |
398 | /* | |
399 | * if already mapped, remap here. If not mapped, | |
400 | * slave_alloc will allocate vdev and map | |
401 | */ | |
402 | if (ri->flags & MPT_RPORT_INFO_FLAGS_MAPPED_VDEV) { | |
403 | ri->vdev->target_id = ri->pg0.CurrentTargetID; | |
404 | ri->vdev->bus_id = ri->pg0.CurrentBus; | |
405 | ri->vdev->vtarget->target_id = ri->vdev->target_id; | |
406 | ri->vdev->vtarget->bus_id = ri->vdev->bus_id; | |
407 | } | |
408 | #ifdef MPT_DEBUG | |
409 | printk ("mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " | |
410 | "rport tid %d, tmo %d\n", | |
411 | ioc->sh->host_no, | |
412 | pg0->PortIdentifier, | |
413 | pg0->WWNN, | |
414 | pg0->WWPN, | |
415 | pg0->CurrentTargetID, | |
416 | ri->rport->scsi_target_id, | |
417 | ri->rport->dev_loss_tmo); | |
418 | #endif | |
419 | } else { | |
420 | list_del(&ri->list); | |
421 | kfree(ri); | |
422 | ri = NULL; | |
423 | } | |
424 | } | |
425 | spin_unlock_irqrestore(&ioc->fc_rport_lock,flags); | |
426 | ||
427 | } | |
428 | ||
2496af39 | 429 | /* |
05e8ec17 MR |
430 | * OS entry point to allow host driver to alloc memory |
431 | * for each scsi device. Called once per device the bus scan. | |
432 | * Return non-zero if allocation fails. | |
433 | * Init memory once per LUN. | |
2496af39 | 434 | */ |
05e8ec17 MR |
435 | int |
436 | mptfc_slave_alloc(struct scsi_device *sdev) | |
437 | { | |
438 | MPT_SCSI_HOST *hd; | |
439 | VirtTarget *vtarget; | |
440 | VirtDevice *vdev; | |
441 | struct scsi_target *starget; | |
442 | struct fc_rport *rport; | |
443 | struct mptfc_rport_info *ri; | |
444 | unsigned long flags; | |
445 | ||
446 | ||
447 | rport = starget_to_rport(scsi_target(sdev)); | |
448 | ||
449 | if (!rport || fc_remote_port_chkready(rport)) | |
450 | return -ENXIO; | |
451 | ||
452 | hd = (MPT_SCSI_HOST *)sdev->host->hostdata; | |
453 | ||
454 | vdev = kmalloc(sizeof(VirtDevice), GFP_KERNEL); | |
455 | if (!vdev) { | |
456 | printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", | |
457 | hd->ioc->name, sizeof(VirtDevice)); | |
458 | return -ENOMEM; | |
459 | } | |
460 | memset(vdev, 0, sizeof(VirtDevice)); | |
461 | ||
462 | spin_lock_irqsave(&hd->ioc->fc_rport_lock,flags); | |
463 | ||
464 | if (!(ri = *((struct mptfc_rport_info **)rport->dd_data))) { | |
465 | spin_unlock_irqrestore(&hd->ioc->fc_rport_lock,flags); | |
466 | kfree(vdev); | |
467 | return -ENODEV; | |
468 | } | |
469 | ||
470 | sdev->hostdata = vdev; | |
471 | starget = scsi_target(sdev); | |
472 | vtarget = starget->hostdata; | |
473 | if (vtarget->num_luns == 0) { | |
474 | vtarget->tflags = MPT_TARGET_FLAGS_Q_YES | | |
475 | MPT_TARGET_FLAGS_VALID_INQUIRY; | |
476 | hd->Targets[sdev->id] = vtarget; | |
477 | } | |
478 | ||
479 | vtarget->target_id = vdev->target_id; | |
480 | vtarget->bus_id = vdev->bus_id; | |
481 | ||
482 | vdev->vtarget = vtarget; | |
483 | vdev->ioc_id = hd->ioc->id; | |
484 | vdev->lun = sdev->lun; | |
485 | vdev->target_id = ri->pg0.CurrentTargetID; | |
486 | vdev->bus_id = ri->pg0.CurrentBus; | |
487 | ||
488 | ri->flags |= MPT_RPORT_INFO_FLAGS_MAPPED_VDEV; | |
489 | ri->vdev = vdev; | |
490 | ||
491 | spin_unlock_irqrestore(&hd->ioc->fc_rport_lock,flags); | |
492 | ||
493 | vtarget->num_luns++; | |
494 | ||
495 | #ifdef MPT_DEBUG | |
496 | printk ("mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " | |
497 | "CurrentTargetID %d, %x %llx %llx\n", | |
498 | sdev->host->host_no, | |
499 | vtarget->num_luns, | |
500 | sdev->id, ri->pg0.CurrentTargetID, | |
501 | ri->pg0.PortIdentifier, ri->pg0.WWPN, ri->pg0.WWNN); | |
502 | #endif | |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
507 | static int | |
508 | mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) | |
509 | { | |
510 | struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); | |
511 | int err; | |
512 | ||
513 | err = fc_remote_port_chkready(rport); | |
514 | if (unlikely(err)) { | |
515 | SCpnt->result = err; | |
516 | done(SCpnt); | |
517 | return 0; | |
518 | } | |
519 | return mptscsih_qcmd(SCpnt,done); | |
520 | } | |
521 | ||
522 | static void | |
523 | mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) | |
524 | { | |
525 | unsigned class = 0, cos = 0; | |
526 | ||
527 | /* don't know what to do as only one scsi (fc) host was allocated */ | |
528 | if (portnum != 0) | |
529 | return; | |
530 | ||
531 | class = ioc->fc_port_page0[portnum].SupportedServiceClass; | |
532 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) | |
533 | cos |= FC_COS_CLASS1; | |
534 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) | |
535 | cos |= FC_COS_CLASS2; | |
536 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) | |
537 | cos |= FC_COS_CLASS3; | |
538 | ||
539 | fc_host_node_name(ioc->sh) = | |
540 | (u64)ioc->fc_port_page0[portnum].WWNN.High << 32 | |
541 | | (u64)ioc->fc_port_page0[portnum].WWNN.Low; | |
542 | ||
543 | fc_host_port_name(ioc->sh) = | |
544 | (u64)ioc->fc_port_page0[portnum].WWPN.High << 32 | |
545 | | (u64)ioc->fc_port_page0[portnum].WWPN.Low; | |
546 | ||
547 | fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier; | |
548 | ||
549 | fc_host_supported_classes(ioc->sh) = cos; | |
550 | ||
551 | fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN; | |
552 | } | |
553 | ||
554 | static void | |
555 | mptfc_rescan_devices(void *arg) | |
556 | { | |
557 | MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; | |
558 | int ii; | |
559 | int work_to_do; | |
560 | unsigned long flags; | |
561 | struct mptfc_rport_info *ri; | |
562 | ||
563 | do { | |
564 | /* start by tagging all ports as missing */ | |
565 | spin_lock_irqsave(&ioc->fc_rport_lock,flags); | |
566 | list_for_each_entry(ri, &ioc->fc_rports, list) { | |
567 | if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { | |
568 | ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; | |
569 | } | |
570 | } | |
571 | spin_unlock_irqrestore(&ioc->fc_rport_lock,flags); | |
572 | ||
573 | /* | |
574 | * now rescan devices known to adapter, | |
575 | * will reregister existing rports | |
576 | */ | |
577 | for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { | |
578 | (void) mptbase_GetFcPortPage0(ioc, ii); | |
579 | mptfc_init_host_attr(ioc,ii); /* refresh */ | |
580 | mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); | |
581 | } | |
582 | ||
583 | /* delete devices still missing */ | |
584 | spin_lock_irqsave(&ioc->fc_rport_lock, flags); | |
585 | list_for_each_entry(ri, &ioc->fc_rports, list) { | |
586 | /* if newly missing, delete it */ | |
587 | if ((ri->flags & (MPT_RPORT_INFO_FLAGS_REGISTERED | | |
588 | MPT_RPORT_INFO_FLAGS_MISSING)) | |
589 | == (MPT_RPORT_INFO_FLAGS_REGISTERED | | |
590 | MPT_RPORT_INFO_FLAGS_MISSING)) { | |
591 | ||
592 | ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| | |
593 | MPT_RPORT_INFO_FLAGS_MISSING); | |
594 | fc_remote_port_delete(ri->rport); | |
595 | /* | |
596 | * remote port not really deleted 'cause | |
597 | * binding is by WWPN and driver only | |
598 | * registers FCP_TARGETs | |
599 | */ | |
600 | #ifdef MPT_DEBUG | |
601 | printk ("mptfc_rescan.%d: %llx deleted\n", | |
602 | ioc->sh->host_no, ri->pg0.WWPN); | |
603 | #endif | |
604 | } | |
605 | } | |
606 | spin_unlock_irqrestore(&ioc->fc_rport_lock,flags); | |
607 | ||
608 | /* | |
609 | * allow multiple passes as target state | |
610 | * might have changed during scan | |
611 | */ | |
612 | spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); | |
613 | if (ioc->fc_rescan_work_count > 2) /* only need one more */ | |
614 | ioc->fc_rescan_work_count = 2; | |
615 | work_to_do = --ioc->fc_rescan_work_count; | |
616 | spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); | |
617 | } while (work_to_do); | |
618 | } | |
619 | ||
2496af39 MED |
620 | static int |
621 | mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
622 | { | |
623 | struct Scsi_Host *sh; | |
624 | MPT_SCSI_HOST *hd; | |
625 | MPT_ADAPTER *ioc; | |
626 | unsigned long flags; | |
1ca00bb7 | 627 | int ii; |
2496af39 MED |
628 | int numSGE = 0; |
629 | int scale; | |
630 | int ioc_cap; | |
2496af39 MED |
631 | int error=0; |
632 | int r; | |
05e8ec17 | 633 | |
2496af39 MED |
634 | if ((r = mpt_attach(pdev,id)) != 0) |
635 | return r; | |
05e8ec17 | 636 | |
2496af39 | 637 | ioc = pci_get_drvdata(pdev); |
d335cc38 MED |
638 | ioc->DoneCtx = mptfcDoneCtx; |
639 | ioc->TaskCtx = mptfcTaskCtx; | |
640 | ioc->InternalCtx = mptfcInternalCtx; | |
2496af39 MED |
641 | |
642 | /* Added sanity check on readiness of the MPT adapter. | |
643 | */ | |
644 | if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { | |
645 | printk(MYIOC_s_WARN_FMT | |
646 | "Skipping because it's not operational!\n", | |
647 | ioc->name); | |
7acec1e7 MED |
648 | error = -ENODEV; |
649 | goto out_mptfc_probe; | |
2496af39 MED |
650 | } |
651 | ||
652 | if (!ioc->active) { | |
653 | printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", | |
654 | ioc->name); | |
7acec1e7 MED |
655 | error = -ENODEV; |
656 | goto out_mptfc_probe; | |
2496af39 MED |
657 | } |
658 | ||
659 | /* Sanity check - ensure at least 1 port is INITIATOR capable | |
660 | */ | |
661 | ioc_cap = 0; | |
662 | for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { | |
663 | if (ioc->pfacts[ii].ProtocolFlags & | |
664 | MPI_PORTFACTS_PROTOCOL_INITIATOR) | |
665 | ioc_cap ++; | |
666 | } | |
667 | ||
668 | if (!ioc_cap) { | |
669 | printk(MYIOC_s_WARN_FMT | |
670 | "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", | |
671 | ioc->name, ioc); | |
05e8ec17 | 672 | return -ENODEV; |
2496af39 MED |
673 | } |
674 | ||
675 | sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); | |
676 | ||
677 | if (!sh) { | |
678 | printk(MYIOC_s_WARN_FMT | |
679 | "Unable to register controller with SCSI subsystem\n", | |
680 | ioc->name); | |
7acec1e7 MED |
681 | error = -1; |
682 | goto out_mptfc_probe; | |
2496af39 MED |
683 | } |
684 | ||
05e8ec17 MR |
685 | INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc); |
686 | ||
2496af39 MED |
687 | spin_lock_irqsave(&ioc->FreeQlock, flags); |
688 | ||
689 | /* Attach the SCSI Host to the IOC structure | |
690 | */ | |
691 | ioc->sh = sh; | |
692 | ||
693 | sh->io_port = 0; | |
694 | sh->n_io_port = 0; | |
695 | sh->irq = 0; | |
696 | ||
697 | /* set 16 byte cdb's */ | |
698 | sh->max_cmd_len = 16; | |
699 | ||
700 | sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255; | |
701 | ||
702 | sh->max_lun = MPT_LAST_LUN + 1; | |
703 | sh->max_channel = 0; | |
704 | sh->this_id = ioc->pfacts[0].PortSCSIID; | |
705 | ||
706 | /* Required entry. | |
707 | */ | |
708 | sh->unique_id = ioc->id; | |
709 | ||
710 | /* Verify that we won't exceed the maximum | |
711 | * number of chain buffers | |
712 | * We can optimize: ZZ = req_sz/sizeof(SGE) | |
713 | * For 32bit SGE's: | |
714 | * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ | |
715 | * + (req_sz - 64)/sizeof(SGE) | |
716 | * A slightly different algorithm is required for | |
717 | * 64bit SGEs. | |
718 | */ | |
719 | scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); | |
720 | if (sizeof(dma_addr_t) == sizeof(u64)) { | |
721 | numSGE = (scale - 1) * | |
722 | (ioc->facts.MaxChainDepth-1) + scale + | |
723 | (ioc->req_sz - 60) / (sizeof(dma_addr_t) + | |
724 | sizeof(u32)); | |
725 | } else { | |
726 | numSGE = 1 + (scale - 1) * | |
727 | (ioc->facts.MaxChainDepth-1) + scale + | |
728 | (ioc->req_sz - 64) / (sizeof(dma_addr_t) + | |
729 | sizeof(u32)); | |
730 | } | |
731 | ||
732 | if (numSGE < sh->sg_tablesize) { | |
733 | /* Reset this value */ | |
734 | dprintk((MYIOC_s_INFO_FMT | |
735 | "Resetting sg_tablesize to %d from %d\n", | |
736 | ioc->name, numSGE, sh->sg_tablesize)); | |
737 | sh->sg_tablesize = numSGE; | |
738 | } | |
739 | ||
2496af39 MED |
740 | spin_unlock_irqrestore(&ioc->FreeQlock, flags); |
741 | ||
742 | hd = (MPT_SCSI_HOST *) sh->hostdata; | |
743 | hd->ioc = ioc; | |
744 | ||
745 | /* SCSI needs scsi_cmnd lookup table! | |
746 | * (with size equal to req_depth*PtrSz!) | |
747 | */ | |
1ca00bb7 CH |
748 | hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); |
749 | if (!hd->ScsiLookup) { | |
2496af39 | 750 | error = -ENOMEM; |
7acec1e7 | 751 | goto out_mptfc_probe; |
2496af39 MED |
752 | } |
753 | ||
1ca00bb7 CH |
754 | dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n", |
755 | ioc->name, hd->ScsiLookup)); | |
2496af39 MED |
756 | |
757 | /* Allocate memory for the device structures. | |
758 | * A non-Null pointer at an offset | |
759 | * indicates a device exists. | |
760 | * max_id = 1 + maximum id (hosts.h) | |
761 | */ | |
1ca00bb7 CH |
762 | hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC); |
763 | if (!hd->Targets) { | |
2496af39 | 764 | error = -ENOMEM; |
7acec1e7 | 765 | goto out_mptfc_probe; |
2496af39 MED |
766 | } |
767 | ||
1ca00bb7 | 768 | dprintk((KERN_INFO " vdev @ %p\n", hd->Targets)); |
2496af39 MED |
769 | |
770 | /* Clear the TM flags | |
771 | */ | |
772 | hd->tmPending = 0; | |
773 | hd->tmState = TM_STATE_NONE; | |
774 | hd->resetPending = 0; | |
775 | hd->abortSCpnt = NULL; | |
776 | ||
777 | /* Clear the pointer used to store | |
778 | * single-threaded commands, i.e., those | |
779 | * issued during a bus scan, dv and | |
780 | * configuration pages. | |
781 | */ | |
782 | hd->cmdPtr = NULL; | |
783 | ||
784 | /* Initialize this SCSI Hosts' timers | |
785 | * To use, set the timer expires field | |
786 | * and add_timer | |
787 | */ | |
788 | init_timer(&hd->timer); | |
789 | hd->timer.data = (unsigned long) hd; | |
790 | hd->timer.function = mptscsih_timer_expired; | |
791 | ||
2496af39 MED |
792 | hd->mpt_pq_filter = mpt_pq_filter; |
793 | ||
794 | ddvprintk((MYIOC_s_INFO_FMT | |
795 | "mpt_pq_filter %x\n", | |
796 | ioc->name, | |
797 | mpt_pq_filter)); | |
798 | ||
799 | init_waitqueue_head(&hd->scandv_waitq); | |
800 | hd->scandv_wait_done = 0; | |
801 | hd->last_queue_full = 0; | |
802 | ||
05e8ec17 | 803 | sh->transportt = mptfc_transport_template; |
2496af39 MED |
804 | error = scsi_add_host (sh, &ioc->pcidev->dev); |
805 | if(error) { | |
806 | dprintk((KERN_ERR MYNAM | |
807 | "scsi_add_host failed\n")); | |
7acec1e7 | 808 | goto out_mptfc_probe; |
2496af39 MED |
809 | } |
810 | ||
05e8ec17 MR |
811 | for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
812 | mptfc_init_host_attr(ioc,ii); | |
813 | mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); | |
814 | } | |
815 | ||
2496af39 MED |
816 | return 0; |
817 | ||
7acec1e7 | 818 | out_mptfc_probe: |
2496af39 MED |
819 | |
820 | mptscsih_remove(pdev); | |
821 | return error; | |
822 | } | |
823 | ||
824 | static struct pci_driver mptfc_driver = { | |
825 | .name = "mptfc", | |
826 | .id_table = mptfc_pci_table, | |
827 | .probe = mptfc_probe, | |
05e8ec17 | 828 | .remove = __devexit_p(mptfc_remove), |
d18c3db5 | 829 | .shutdown = mptscsih_shutdown, |
2496af39 MED |
830 | #ifdef CONFIG_PM |
831 | .suspend = mptscsih_suspend, | |
832 | .resume = mptscsih_resume, | |
833 | #endif | |
834 | }; | |
835 | ||
836 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
837 | /** | |
838 | * mptfc_init - Register MPT adapter(s) as SCSI host(s) with | |
839 | * linux scsi mid-layer. | |
840 | * | |
841 | * Returns 0 for success, non-zero for failure. | |
842 | */ | |
843 | static int __init | |
844 | mptfc_init(void) | |
845 | { | |
05e8ec17 | 846 | int error; |
2496af39 MED |
847 | |
848 | show_mptmod_ver(my_NAME, my_VERSION); | |
849 | ||
05e8ec17 MR |
850 | /* sanity check module parameter */ |
851 | if (mptfc_dev_loss_tmo == 0) | |
852 | mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; | |
853 | ||
854 | mptfc_transport_template = | |
855 | fc_attach_transport(&mptfc_transport_functions); | |
856 | ||
857 | if (!mptfc_transport_template) | |
858 | return -ENODEV; | |
859 | ||
2496af39 MED |
860 | mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); |
861 | mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); | |
862 | mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); | |
863 | ||
864 | if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) { | |
865 | devtprintk((KERN_INFO MYNAM | |
866 | ": Registered for IOC event notifications\n")); | |
867 | } | |
868 | ||
869 | if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) { | |
870 | dprintk((KERN_INFO MYNAM | |
871 | ": Registered for IOC reset notifications\n")); | |
872 | } | |
873 | ||
05e8ec17 MR |
874 | error = pci_register_driver(&mptfc_driver); |
875 | if (error) { | |
876 | fc_release_transport(mptfc_transport_template); | |
877 | } | |
878 | ||
879 | return error; | |
880 | } | |
881 | ||
882 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
883 | /** | |
884 | * mptfc_remove - Removed fc infrastructure for devices | |
885 | * @pdev: Pointer to pci_dev structure | |
886 | * | |
887 | */ | |
888 | static void __devexit mptfc_remove(struct pci_dev *pdev) | |
889 | { | |
890 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); | |
891 | struct mptfc_rport_info *p, *n; | |
892 | ||
893 | fc_remove_host(ioc->sh); | |
894 | ||
895 | list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { | |
896 | list_del(&p->list); | |
897 | kfree(p); | |
898 | } | |
899 | ||
900 | mptscsih_remove(pdev); | |
2496af39 MED |
901 | } |
902 | ||
903 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
904 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
905 | /** | |
906 | * mptfc_exit - Unregisters MPT adapter(s) | |
907 | * | |
908 | */ | |
909 | static void __exit | |
910 | mptfc_exit(void) | |
911 | { | |
912 | pci_unregister_driver(&mptfc_driver); | |
05e8ec17 MR |
913 | fc_release_transport(mptfc_transport_template); |
914 | ||
2496af39 MED |
915 | mpt_reset_deregister(mptfcDoneCtx); |
916 | dprintk((KERN_INFO MYNAM | |
917 | ": Deregistered for IOC reset notifications\n")); | |
918 | ||
919 | mpt_event_deregister(mptfcDoneCtx); | |
920 | dprintk((KERN_INFO MYNAM | |
921 | ": Deregistered for IOC event notifications\n")); | |
922 | ||
923 | mpt_deregister(mptfcInternalCtx); | |
924 | mpt_deregister(mptfcTaskCtx); | |
925 | mpt_deregister(mptfcDoneCtx); | |
926 | } | |
927 | ||
928 | module_init(mptfc_init); | |
929 | module_exit(mptfc_exit); |