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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[net-next-2.6.git] / drivers / message / fusion / mptfc.c
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2496af39
MED		 1/*
2 * linux/drivers/message/fusion/mptfc.c
f36789e2
PS		 3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
2496af39 5 *
cddc0ab7 6 * Copyright (c) 1999-2008 LSI Corporation
16d20101 7 * (mailto:DL-MPTFusionLinux@lsi.com)
2496af39
MED		 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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2496af39
MED		 46#include <linux/module.h>
47#include <linux/kernel.h>
48#include <linux/init.h>
49#include <linux/errno.h>
50#include <linux/kdev_t.h>
51#include <linux/blkdev.h>
52#include <linux/delay.h> /* for mdelay */
53#include <linux/interrupt.h> /* needed for in_interrupt() proto */
54#include <linux/reboot.h> /* notifier code */
2496af39 55#include <linux/workqueue.h>
05e8ec17 56#include <linux/sort.h>
5a0e3ad6 57#include <linux/slab.h>
2496af39
MED		 58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
05e8ec17 64#include <scsi/scsi_transport_fc.h>
2496af39
MED		 65
66#include "mptbase.h"
67#include "mptscsih.h"
68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT FC Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptfc"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
9f4203b3 77MODULE_VERSION(my_VERSION);
2496af39
MED		 78
79/* Command line args */
05e8ec17
MR		 80#define MPTFC_DEV_LOSS_TMO (60)
81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
82module_param(mptfc_dev_loss_tmo, int, 0);
83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
84 " transport to wait for an rport to "
85 " return following a device loss event."
86 " Default=60.");
87
793955f5
EM		 88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
89#define MPTFC_MAX_LUN (16895)
90static int max_lun = MPTFC_MAX_LUN;
91module_param(max_lun, int, 0);
92MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
93
f606f571
PS		 94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
2496af39 97
3bc7bf1d
MR		 98static int mptfc_target_alloc(struct scsi_target *starget);
99static int mptfc_slave_alloc(struct scsi_device *sdev);
05e8ec17 100static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
3bc7bf1d
MR		 101 void (*done)(struct scsi_cmnd *));
102static void mptfc_target_destroy(struct scsi_target *starget);
05e8ec17
MR		 103static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
104static void __devexit mptfc_remove(struct pci_dev *pdev);
35508e46
MR		 105static int mptfc_abort(struct scsi_cmnd *SCpnt);
106static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
107static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
108static int mptfc_host_reset(struct scsi_cmnd *SCpnt);
05e8ec17 109
2496af39 110static struct scsi_host_template mptfc_driver_template = {
f78496da 111 .module = THIS_MODULE,
2496af39
MED		 112 .proc_name = "mptfc",
113 .proc_info = mptscsih_proc_info,
114 .name = "MPT FC Host",
115 .info = mptscsih_info,
05e8ec17 116 .queuecommand = mptfc_qcmd,
3bc7bf1d 117 .target_alloc = mptfc_target_alloc,
05e8ec17 118 .slave_alloc = mptfc_slave_alloc,
2496af39 119 .slave_configure = mptscsih_slave_configure,
3bc7bf1d 120 .target_destroy = mptfc_target_destroy,
2496af39 121 .slave_destroy = mptscsih_slave_destroy,
6e3815ba 122 .change_queue_depth = mptscsih_change_queue_depth,
35508e46
MR		 123 .eh_abort_handler = mptfc_abort,
124 .eh_device_reset_handler = mptfc_dev_reset,
125 .eh_bus_reset_handler = mptfc_bus_reset,
126 .eh_host_reset_handler = mptfc_host_reset,
2496af39
MED		 127 .bios_param = mptscsih_bios_param,
128 .can_queue = MPT_FC_CAN_QUEUE,
129 .this_id = -1,
130 .sg_tablesize = MPT_SCSI_SG_DEPTH,
131 .max_sectors = 8192,
132 .cmd_per_lun = 7,
133 .use_clustering = ENABLE_CLUSTERING,
edb9068d 134 .shost_attrs = mptscsih_host_attrs,
2496af39
MED		 135};
136
137/****************************************************************************
138 * Supported hardware
139 */
140
141static struct pci_device_id mptfc_pci_table[] = {
87cf8986 142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
2496af39 143 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
2496af39 145 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
2496af39 147 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
2496af39 149 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
2496af39 151 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
3fadc59d 153 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
3fadc59d 155 PCI_ANY_ID, PCI_ANY_ID },
87cf8986 156 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
6d5b0c31 157 PCI_ANY_ID, PCI_ANY_ID },
ef1d8df7
PS		 158 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
159 PCI_ANY_ID, PCI_ANY_ID },
2496af39
MED		 160 {0} /* Terminating entry */
161};
162MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
163
05e8ec17
MR		 164static struct scsi_transport_template *mptfc_transport_template = NULL;
165
03fbcbcd 166static struct fc_function_template mptfc_transport_functions = {
05e8ec17
MR		 167 .dd_fcrport_size = 8,
168 .show_host_node_name = 1,
169 .show_host_port_name = 1,
170 .show_host_supported_classes = 1,
171 .show_host_port_id = 1,
172 .show_rport_supported_classes = 1,
173 .show_starget_node_name = 1,
174 .show_starget_port_name = 1,
175 .show_starget_port_id = 1,
176 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
177 .show_rport_dev_loss_tmo = 1,
5d947f2b
MR		 178 .show_host_supported_speeds = 1,
179 .show_host_maxframe_size = 1,
180 .show_host_speed = 1,
181 .show_host_fabric_name = 1,
182 .show_host_port_type = 1,
183 .show_host_port_state = 1,
184 .show_host_symbolic_name = 1,
05e8ec17
MR		 185};
186
35508e46
MR		 187static int
188mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
189 int (*func)(struct scsi_cmnd *SCpnt),
190 const char *caller)
191{
d6ecdd63 192 MPT_SCSI_HOST *hd;
35508e46
MR		 193 struct scsi_device *sdev = SCpnt->device;
194 struct Scsi_Host *shost = sdev->host;
195 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
196 unsigned long flags;
197 int ready;
e80b002b 198 MPT_ADAPTER *ioc;
03cb3829 199 int loops = 40; /* seconds */
35508e46 200
e7eae9f6 201 hd = shost_priv(SCpnt->device->host);
e80b002b 202 ioc = hd->ioc;
35508e46 203 spin_lock_irqsave(shost->host_lock, flags);
03cb3829
MR		 204 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
205 || (loops > 0 && ioc->active == 0)) {
35508e46 206 spin_unlock_irqrestore(shost->host_lock, flags);
e80b002b 207 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
35508e46 208 "mptfc_block_error_handler.%d: %d:%d, port status is "
03cb3829 209 "%x, active flag %d, deferring %s recovery.\n",
e7eae9f6 210 ioc->name, ioc->sh->host_no,
03cb3829
MR		 211 SCpnt->device->id, SCpnt->device->lun,
212 ready, ioc->active, caller));
35508e46
MR		 213 msleep(1000);
214 spin_lock_irqsave(shost->host_lock, flags);
03cb3829 215 loops --;
35508e46
MR		 216 }
217 spin_unlock_irqrestore(shost->host_lock, flags);
218
03cb3829
MR		 219 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
220 || ioc->active == 0) {
e80b002b 221 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
35508e46 222 "%s.%d: %d:%d, failing recovery, "
03cb3829 223 "port state %x, active %d, vdevice %p.\n", caller,
e7eae9f6 224 ioc->name, ioc->sh->host_no,
29dd3609 225 SCpnt->device->id, SCpnt->device->lun, ready,
03cb3829 226 ioc->active, SCpnt->device->hostdata));
35508e46
MR		 227 return FAILED;
228 }
e80b002b 229 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
35508e46 230 "%s.%d: %d:%d, executing recovery.\n", caller,
e7eae9f6 231 ioc->name, ioc->sh->host_no,
29dd3609 232 SCpnt->device->id, SCpnt->device->lun));
35508e46
MR		 233 return (*func)(SCpnt);
234}
235
236static int
237mptfc_abort(struct scsi_cmnd *SCpnt)
238{
239 return
cadbd4a5 240 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
35508e46
MR		 241}
242
243static int
244mptfc_dev_reset(struct scsi_cmnd *SCpnt)
245{
246 return
cadbd4a5 247 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
35508e46
MR		 248}
249
250static int
251mptfc_bus_reset(struct scsi_cmnd *SCpnt)
252{
253 return
cadbd4a5 254 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
35508e46
MR		 255}
256
257static int
258mptfc_host_reset(struct scsi_cmnd *SCpnt)
259{
260 return
cadbd4a5 261 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__);
35508e46
MR		 262}
263
05e8ec17
MR		 264static void
265mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
266{
267 if (timeout > 0)
268 rport->dev_loss_tmo = timeout;
269 else
270 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
271}
272
273static int
274mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
275{
276 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
277 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
278
279 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
280 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
281 return 0;
282 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
283 return -1;
284 return 1;
285 }
286 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
287 return -1;
288 return 1;
289}
290
291static int
292mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
293 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
294{
295 ConfigPageHeader_t hdr;
296 CONFIGPARMS cfg;
297 FCDevicePage0_t *ppage0_alloc, *fc;
298 dma_addr_t page0_dma;
299 int data_sz;
300 int ii;
301
302 FCDevicePage0_t *p0_array=NULL, *p_p0;
303 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
304
305 int rc = -ENOMEM;
306 U32 port_id = 0xffffff;
307 int num_targ = 0;
308 int max_bus = ioc->facts.MaxBuses;
793955f5 309 int max_targ;
05e8ec17 310
793955f5 311 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
05e8ec17
MR		 312
313 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
314 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
315 if (!p0_array)
316 goto out;
317
318 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
319 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
320 if (!pp0_array)
321 goto out;
322
323 do {
324 /* Get FC Device Page 0 header */
325 hdr.PageVersion = 0;
326 hdr.PageLength = 0;
327 hdr.PageNumber = 0;
328 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
329 cfg.cfghdr.hdr = &hdr;
330 cfg.physAddr = -1;
331 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
332 cfg.dir = 0;
333 cfg.pageAddr = port_id;
334 cfg.timeout = 0;
335
336 if ((rc = mpt_config(ioc, &cfg)) != 0)
337 break;
338
339 if (hdr.PageLength <= 0)
340 break;
341
342 data_sz = hdr.PageLength * 4;
343 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
344 &page0_dma);
345 rc = -ENOMEM;
346 if (!ppage0_alloc)
347 break;
348
349 cfg.physAddr = page0_dma;
350 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
351
352 if ((rc = mpt_config(ioc, &cfg)) == 0) {
353 ppage0_alloc->PortIdentifier =
354 le32_to_cpu(ppage0_alloc->PortIdentifier);
355
356 ppage0_alloc->WWNN.Low =
357 le32_to_cpu(ppage0_alloc->WWNN.Low);
358
359 ppage0_alloc->WWNN.High =
360 le32_to_cpu(ppage0_alloc->WWNN.High);
361
362 ppage0_alloc->WWPN.Low =
363 le32_to_cpu(ppage0_alloc->WWPN.Low);
364
365 ppage0_alloc->WWPN.High =
366 le32_to_cpu(ppage0_alloc->WWPN.High);
367
368 ppage0_alloc->BBCredit =
369 le16_to_cpu(ppage0_alloc->BBCredit);
370
371 ppage0_alloc->MaxRxFrameSize =
372 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
373
374 port_id = ppage0_alloc->PortIdentifier;
375 num_targ++;
376 *p_p0 = *ppage0_alloc; /* save data */
377 *p_pp0++ = p_p0++; /* save addr */
378 }
379 pci_free_consistent(ioc->pcidev, data_sz,
380 (u8 *) ppage0_alloc, page0_dma);
381 if (rc != 0)
382 break;
383
384 } while (port_id <= 0xff0000);
385
386 if (num_targ) {
387 /* sort array */
388 if (num_targ > 1)
389 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
390 mptfc_FcDevPage0_cmp_func, NULL);
391 /* call caller's func for each targ */
392 for (ii = 0; ii < num_targ; ii++) {
393 fc = *(pp0_array+ii);
394 func(ioc, ioc_port, fc);
395 }
396 }
397
398 out:
8f760780
JJ		 399 kfree(pp0_array);
400 kfree(p0_array);
05e8ec17
MR		 401 return rc;
402}
403
404static int
405mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
406{
407 /* not currently usable */
408 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
409 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
410 return -1;
411
412 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
413 return -1;
414
415 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
416 return -1;
417
418 /*
419 * board data structure already normalized to platform endianness
420 * shifted to avoid unaligned access on 64 bit architecture
421 */
422 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
423 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
424 rid->port_id = pg0->PortIdentifier;
425 rid->roles = FC_RPORT_ROLE_UNKNOWN;
05e8ec17
MR		 426
427 return 0;
428}
429
430static void
431mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
432{
433 struct fc_rport_identifiers rport_ids;
434 struct fc_rport *rport;
435 struct mptfc_rport_info *ri;
3bc7bf1d 436 int new_ri = 1;
65207fed 437 u64 pn, nn;
3bc7bf1d 438 VirtTarget *vtarget;
6dd727da 439 u32 roles = FC_RPORT_ROLE_UNKNOWN;
05e8ec17
MR		 440
441 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
442 return;
443
6dd727da 444 roles |= FC_RPORT_ROLE_FCP_TARGET;
445 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
446 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
447
05e8ec17 448 /* scan list looking for a match */
05e8ec17 449 list_for_each_entry(ri, &ioc->fc_rports, list) {
3bc7bf1d
MR		 450 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
451 if (pn == rport_ids.port_name) { /* match */
05e8ec17 452 list_move_tail(&ri->list, &ioc->fc_rports);
3bc7bf1d 453 new_ri = 0;
05e8ec17
MR		 454 break;
455 }
456 }
3bc7bf1d 457 if (new_ri) { /* allocate one */
05e8ec17
MR		 458 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
459 if (!ri)
460 return;
05e8ec17
MR		 461 list_add_tail(&ri->list, &ioc->fc_rports);
462 }
463
464 ri->pg0 = *pg0; /* add/update pg0 data */
465 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
466
3bc7bf1d 467 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
05e8ec17
MR		 468 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
469 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
3bc7bf1d 470 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
05e8ec17 471 if (rport) {
3bc7bf1d
MR		 472 ri->rport = rport;
473 if (new_ri) /* may have been reset by user */
474 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
05e8ec17
MR		 475 /*
476 * if already mapped, remap here. If not mapped,
3bc7bf1d 477 * target_alloc will allocate vtarget and map,
a69de507 478 * slave_alloc will fill in vdevice from vtarget.
05e8ec17 479 */
3bc7bf1d
MR		 480 if (ri->starget) {
481 vtarget = ri->starget->hostdata;
482 if (vtarget) {
793955f5
EM		 483 vtarget->id = pg0->CurrentTargetID;
484 vtarget->channel = pg0->CurrentBus;
3bc7bf1d 485 }
05e8ec17 486 }
65207fed 487 *((struct mptfc_rport_info **)rport->dd_data) = ri;
6dd727da 488 /* scan will be scheduled once rport becomes a target */
489 fc_remote_port_rolechg(rport,roles);
65207fed
ME		 490
491 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
492 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
d6ecdd63 493 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
3bc7bf1d 494 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
05e8ec17 495 "rport tid %d, tmo %d\n",
3bc7bf1d 496 ioc->name,
914c2d8e 497 ioc->sh->host_no,
05e8ec17 498 pg0->PortIdentifier,
65207fed
ME		 499 (unsigned long long)nn,
500 (unsigned long long)pn,
05e8ec17
MR		 501 pg0->CurrentTargetID,
502 ri->rport->scsi_target_id,
3bc7bf1d 503 ri->rport->dev_loss_tmo));
05e8ec17
MR		 504 } else {
505 list_del(&ri->list);
506 kfree(ri);
507 ri = NULL;
508 }
509 }
05e8ec17
MR		 510}
511
3bc7bf1d
MR		 512/*
513 * OS entry point to allow for host driver to free allocated memory
514 * Called if no device present or device being unloaded
515 */
516static void
517mptfc_target_destroy(struct scsi_target *starget)
518{
519 struct fc_rport *rport;
520 struct mptfc_rport_info *ri;
521
522 rport = starget_to_rport(starget);
523 if (rport) {
524 ri = *((struct mptfc_rport_info **)rport->dd_data);
525 if (ri) /* better be! */
526 ri->starget = NULL;
527 }
528 if (starget->hostdata)
529 kfree(starget->hostdata);
530 starget->hostdata = NULL;
531}
532
533/*
534 * OS entry point to allow host driver to alloc memory
535 * for each scsi target. Called once per device the bus scan.
536 * Return non-zero if allocation fails.
537 */
538static int
539mptfc_target_alloc(struct scsi_target *starget)
540{
541 VirtTarget *vtarget;
542 struct fc_rport *rport;
543 struct mptfc_rport_info *ri;
544 int rc;
545
546 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
547 if (!vtarget)
548 return -ENOMEM;
549 starget->hostdata = vtarget;
550
551 rc = -ENODEV;
552 rport = starget_to_rport(starget);
553 if (rport) {
554 ri = *((struct mptfc_rport_info **)rport->dd_data);
555 if (ri) { /* better be! */
793955f5
EM		 556 vtarget->id = ri->pg0.CurrentTargetID;
557 vtarget->channel = ri->pg0.CurrentBus;
3bc7bf1d 558 ri->starget = starget;
3bc7bf1d
MR		 559 rc = 0;
560 }
561 }
562 if (rc != 0) {
563 kfree(vtarget);
564 starget->hostdata = NULL;
565 }
566
567 return rc;
568}
d6ecdd63
PS		 569/*
570 * mptfc_dump_lun_info
571 * @ioc
572 * @rport
573 * @sdev
574 *
575 */
576static void
577mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
578 VirtTarget *vtarget)
579{
580 u64 nn, pn;
581 struct mptfc_rport_info *ri;
582
583 ri = *((struct mptfc_rport_info **)rport->dd_data);
584 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
585 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
586 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
587 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
588 "CurrentTargetID %d, %x %llx %llx\n",
589 ioc->name,
590 sdev->host->host_no,
591 vtarget->num_luns,
592 sdev->id, ri->pg0.CurrentTargetID,
593 ri->pg0.PortIdentifier,
594 (unsigned long long)pn,
595 (unsigned long long)nn));
596}
597
3bc7bf1d 598
2496af39 599/*
05e8ec17
MR		 600 * OS entry point to allow host driver to alloc memory
601 * for each scsi device. Called once per device the bus scan.
602 * Return non-zero if allocation fails.
603 * Init memory once per LUN.
2496af39 604 */
03fbcbcd 605static int
05e8ec17
MR		 606mptfc_slave_alloc(struct scsi_device *sdev)
607{
608 MPT_SCSI_HOST *hd;
609 VirtTarget *vtarget;
a69de507 610 VirtDevice *vdevice;
05e8ec17
MR		 611 struct scsi_target *starget;
612 struct fc_rport *rport;
e80b002b 613 MPT_ADAPTER *ioc;
05e8ec17 614
65207fed
ME		 615 starget = scsi_target(sdev);
616 rport = starget_to_rport(starget);
05e8ec17
MR		 617
618 if (!rport || fc_remote_port_chkready(rport))
619 return -ENXIO;
620
e7eae9f6 621 hd = shost_priv(sdev->host);
e80b002b 622 ioc = hd->ioc;
05e8ec17 623
a69de507
EM		 624 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
625 if (!vdevice) {
05e8ec17 626 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
e80b002b 627 ioc->name, sizeof(VirtDevice));
05e8ec17
MR		 628 return -ENOMEM;
629 }
05e8ec17 630
05e8ec17 631
a69de507 632 sdev->hostdata = vdevice;
05e8ec17 633 vtarget = starget->hostdata;
3bc7bf1d 634
05e8ec17 635 if (vtarget->num_luns == 0) {
e80b002b 636 vtarget->ioc_id = ioc->id;
ba856d32 637 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
05e8ec17
MR		 638 }
639
a69de507
EM		 640 vdevice->vtarget = vtarget;
641 vdevice->lun = sdev->lun;
05e8ec17 642
05e8ec17
MR		 643 vtarget->num_luns++;
644
65207fed 645
e80b002b 646 mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
05e8ec17
MR		 647
648 return 0;
649}
650
651static int
652mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
653{
3bc7bf1d 654 struct mptfc_rport_info *ri;
05e8ec17
MR		 655 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
656 int err;
a69de507 657 VirtDevice *vdevice = SCpnt->device->hostdata;
05e8ec17 658
a69de507 659 if (!vdevice || !vdevice->vtarget) {
793955f5 660 SCpnt->result = DID_NO_CONNECT << 16;
05e8ec17
MR		 661 done(SCpnt);
662 return 0;
663 }
65207fed 664
793955f5
EM		 665 err = fc_remote_port_chkready(rport);
666 if (unlikely(err)) {
667 SCpnt->result = err;
35508e46
MR		 668 done(SCpnt);
669 return 0;
670 }
671
65207fed 672 /* dd_data is null until finished adding target */
3bc7bf1d 673 ri = *((struct mptfc_rport_info **)rport->dd_data);
65207fed 674 if (unlikely(!ri)) {
65207fed
ME		 675 SCpnt->result = DID_IMM_RETRY << 16;
676 done(SCpnt);
677 return 0;
678 }
3bc7bf1d 679
d6ecdd63 680 return mptscsih_qcmd(SCpnt,done);
05e8ec17
MR		 681}
682
eb5329f4
PS		 683/*
684 * mptfc_display_port_link_speed - displaying link speed
685 * @ioc: Pointer to MPT_ADAPTER structure
686 * @portnum: IOC Port number
687 * @pp0dest: port page0 data payload
688 *
689 */
690static void
691mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
692{
693 u8 old_speed, new_speed, state;
694 char *old, *new;
695
696 if (portnum >= 2)
697 return;
698
699 old_speed = ioc->fc_link_speed[portnum];
700 new_speed = pp0dest->CurrentSpeed;
701 state = pp0dest->PortState;
702
703 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
704 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
705
706 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
708 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
709 "Unknown";
710 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
712 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
713 "Unknown";
714 if (old_speed == 0)
715 printk(MYIOC_s_NOTE_FMT
716 "FC Link Established, Speed = %s\n",
717 ioc->name, new);
718 else if (old_speed != new_speed)
719 printk(MYIOC_s_WARN_FMT
720 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
721 ioc->name, old, new);
722
723 ioc->fc_link_speed[portnum] = new_speed;
724 }
725}
726
80d3ac77
MR		 727/*
728 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
729 * @ioc: Pointer to MPT_ADAPTER structure
730 * @portnum: IOC Port number
731 *
732 * Return: 0 for success
733 * -ENOMEM if no memory available
734 * -EPERM if not allowed due to ISR context
735 * -EAGAIN if no msg frames currently available
736 * -EFAULT for non-successful reply or no reply (timeout)
737 * -EINVAL portnum arg out of range (hardwired to two elements)
738 */
739static int
740mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
741{
742 ConfigPageHeader_t hdr;
743 CONFIGPARMS cfg;
744 FCPortPage0_t *ppage0_alloc;
745 FCPortPage0_t *pp0dest;
746 dma_addr_t page0_dma;
747 int data_sz;
748 int copy_sz;
749 int rc;
750 int count = 400;
751
752 if (portnum > 1)
753 return -EINVAL;
754
755 /* Get FCPort Page 0 header */
756 hdr.PageVersion = 0;
757 hdr.PageLength = 0;
758 hdr.PageNumber = 0;
759 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
760 cfg.cfghdr.hdr = &hdr;
761 cfg.physAddr = -1;
762 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
763 cfg.dir = 0;
764 cfg.pageAddr = portnum;
765 cfg.timeout = 0;
766
767 if ((rc = mpt_config(ioc, &cfg)) != 0)
768 return rc;
769
770 if (hdr.PageLength == 0)
771 return 0;
772
773 data_sz = hdr.PageLength * 4;
774 rc = -ENOMEM;
775 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
776 if (ppage0_alloc) {
777
778 try_again:
779 memset((u8 *)ppage0_alloc, 0, data_sz);
780 cfg.physAddr = page0_dma;
781 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
782
783 if ((rc = mpt_config(ioc, &cfg)) == 0) {
784 /* save the data */
785 pp0dest = &ioc->fc_port_page0[portnum];
786 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
787 memcpy(pp0dest, ppage0_alloc, copy_sz);
788
789 /*
790 * Normalize endianness of structure data,
791 * by byte-swapping all > 1 byte fields!
792 */
793 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
794 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
795 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
796 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
797 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
798 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
799 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
800 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
801 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
802 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
803 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
804 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
805 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
806 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
807 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
808 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
809
810 /*
811 * if still doing discovery,
812 * hang loose a while until finished
813 */
77d88ee2
MR		 814 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
815 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
816 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
817 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
80d3ac77 818 if (count-- > 0) {
d6be06c8 819 msleep(100);
80d3ac77
MR		 820 goto try_again;
821 }
822 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
823 " complete.\n",
824 ioc->name);
825 }
eb5329f4 826 mptfc_display_port_link_speed(ioc, portnum, pp0dest);
80d3ac77
MR		 827 }
828
829 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
830 }
831
832 return rc;
833}
834
ca2f938e
MR		 835static int
836mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
837{
838 ConfigPageHeader_t hdr;
839 CONFIGPARMS cfg;
840 int rc;
841
842 if (portnum > 1)
843 return -EINVAL;
844
845 if (!(ioc->fc_data.fc_port_page1[portnum].data))
846 return -EINVAL;
847
848 /* get fcport page 1 header */
849 hdr.PageVersion = 0;
850 hdr.PageLength = 0;
851 hdr.PageNumber = 1;
852 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
853 cfg.cfghdr.hdr = &hdr;
854 cfg.physAddr = -1;
855 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
856 cfg.dir = 0;
857 cfg.pageAddr = portnum;
858 cfg.timeout = 0;
859
860 if ((rc = mpt_config(ioc, &cfg)) != 0)
861 return rc;
862
863 if (hdr.PageLength == 0)
864 return -ENODEV;
865
866 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
867 return -EINVAL;
868
869 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
870 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
871 cfg.dir = 1;
872
873 rc = mpt_config(ioc, &cfg);
874
875 return rc;
876}
877
878static int
879mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
880{
881 ConfigPageHeader_t hdr;
882 CONFIGPARMS cfg;
883 FCPortPage1_t *page1_alloc;
884 dma_addr_t page1_dma;
885 int data_sz;
886 int rc;
887
888 if (portnum > 1)
889 return -EINVAL;
890
891 /* get fcport page 1 header */
892 hdr.PageVersion = 0;
893 hdr.PageLength = 0;
894 hdr.PageNumber = 1;
895 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
896 cfg.cfghdr.hdr = &hdr;
897 cfg.physAddr = -1;
898 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
899 cfg.dir = 0;
900 cfg.pageAddr = portnum;
901 cfg.timeout = 0;
902
903 if ((rc = mpt_config(ioc, &cfg)) != 0)
904 return rc;
905
906 if (hdr.PageLength == 0)
907 return -ENODEV;
908
909start_over:
910
911 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
912 data_sz = hdr.PageLength * 4;
913 if (data_sz < sizeof(FCPortPage1_t))
914 data_sz = sizeof(FCPortPage1_t);
915
916 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
917 data_sz,
918 &page1_dma);
919 if (!page1_alloc)
920 return -ENOMEM;
921 }
922 else {
923 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
924 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
925 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
926 if (hdr.PageLength * 4 > data_sz) {
927 ioc->fc_data.fc_port_page1[portnum].data = NULL;
928 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
929 page1_alloc, page1_dma);
930 goto start_over;
931 }
932 }
933
934 memset(page1_alloc,0,data_sz);
935
936 cfg.physAddr = page1_dma;
937 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
938
939 if ((rc = mpt_config(ioc, &cfg)) == 0) {
940 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
941 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
942 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
943 }
944 else {
945 ioc->fc_data.fc_port_page1[portnum].data = NULL;
946 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
947 page1_alloc, page1_dma);
948 }
949
950 return rc;
951}
952
953static void
954mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
955{
956 int ii;
957 FCPortPage1_t *pp1;
958
959 #define MPTFC_FW_DEVICE_TIMEOUT (1)
960 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
961 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
962 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
963
964 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
965 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
966 continue;
967 pp1 = ioc->fc_data.fc_port_page1[ii].data;
968 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
969 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
970 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
971 && ((pp1->Flags & OFF_FLAGS) == 0))
972 continue;
973 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
974 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
975 pp1->Flags &= ~OFF_FLAGS;
976 pp1->Flags |= ON_FLAGS;
977 mptfc_WriteFcPortPage1(ioc, ii);
978 }
979}
980
981
05e8ec17
MR		 982static void
983mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
984{
5d947f2b
MR		 985 unsigned class = 0;
986 unsigned cos = 0;
987 unsigned speed;
988 unsigned port_type;
989 unsigned port_state;
990 FCPortPage0_t *pp0;
991 struct Scsi_Host *sh;
992 char *sn;
05e8ec17
MR		 993
994 /* don't know what to do as only one scsi (fc) host was allocated */
995 if (portnum != 0)
996 return;
997
5d947f2b
MR		 998 pp0 = &ioc->fc_port_page0[portnum];
999 sh = ioc->sh;
1000
1001 sn = fc_host_symbolic_name(sh);
1002 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
1003 ioc->prod_name,
1004 MPT_FW_REV_MAGIC_ID_STRING,
1005 ioc->facts.FWVersion.Word);
1006
1007 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
1008
1009 fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
1010
1011 fc_host_node_name(sh) =
1012 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
1013
1014 fc_host_port_name(sh) =
1015 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
1016
1017 fc_host_port_id(sh) = pp0->PortIdentifier;
1018
1019 class = pp0->SupportedServiceClass;
05e8ec17
MR		 1020 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
1021 cos |= FC_COS_CLASS1;
1022 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
1023 cos |= FC_COS_CLASS2;
1024 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
1025 cos |= FC_COS_CLASS3;
5d947f2b
MR		 1026 fc_host_supported_classes(sh) = cos;
1027
1028 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
1029 speed = FC_PORTSPEED_1GBIT;
1030 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
1031 speed = FC_PORTSPEED_2GBIT;
1032 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
1033 speed = FC_PORTSPEED_4GBIT;
1034 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
1035 speed = FC_PORTSPEED_10GBIT;
1036 else
1037 speed = FC_PORTSPEED_UNKNOWN;
1038 fc_host_speed(sh) = speed;
1039
1040 speed = 0;
1041 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
1042 speed |= FC_PORTSPEED_1GBIT;
1043 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
1044 speed |= FC_PORTSPEED_2GBIT;
1045 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
1046 speed |= FC_PORTSPEED_4GBIT;
1047 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
1048 speed |= FC_PORTSPEED_10GBIT;
1049 fc_host_supported_speeds(sh) = speed;
1050
1051 port_state = FC_PORTSTATE_UNKNOWN;
1052 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
1053 port_state = FC_PORTSTATE_ONLINE;
1054 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
1055 port_state = FC_PORTSTATE_LINKDOWN;
1056 fc_host_port_state(sh) = port_state;
1057
1058 port_type = FC_PORTTYPE_UNKNOWN;
1059 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
1060 port_type = FC_PORTTYPE_PTP;
1061 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
1062 port_type = FC_PORTTYPE_LPORT;
1063 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
1064 port_type = FC_PORTTYPE_NLPORT;
1065 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
1066 port_type = FC_PORTTYPE_NPORT;
1067 fc_host_port_type(sh) = port_type;
1068
1069 fc_host_fabric_name(sh) =
1070 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
1071 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
1072 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
05e8ec17 1073
05e8ec17
MR		 1074}
1075
eb5329f4
PS		 1076static void
1077mptfc_link_status_change(struct work_struct *work)
1078{
1079 MPT_ADAPTER *ioc =
1080 container_of(work, MPT_ADAPTER, fc_rescan_work);
1081 int ii;
1082
1083 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
1084 (void) mptfc_GetFcPortPage0(ioc, ii);
1085
1086}
1087
419835e2 1088static void
c4028958 1089mptfc_setup_reset(struct work_struct *work)
419835e2 1090{
c4028958
DH		 1091 MPT_ADAPTER *ioc =
1092 container_of(work, MPT_ADAPTER, fc_setup_reset_work);
419835e2
MR		 1093 u64 pn;
1094 struct mptfc_rport_info *ri;
1095
1096 /* reset about to happen, delete (block) all rports */
1097 list_for_each_entry(ri, &ioc->fc_rports, list) {
1098 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1099 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
1100 fc_remote_port_delete(ri->rport); /* won't sleep */
1101 ri->rport = NULL;
1102
1103 pn = (u64)ri->pg0.WWPN.High << 32 |
1104 (u64)ri->pg0.WWPN.Low;
d6ecdd63 1105 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
419835e2
MR		 1106 "mptfc_setup_reset.%d: %llx deleted\n",
1107 ioc->name,
1108 ioc->sh->host_no,
1109 (unsigned long long)pn));
1110 }
1111 }
1112}
1113
05e8ec17 1114static void
c4028958 1115mptfc_rescan_devices(struct work_struct *work)
05e8ec17 1116{
c4028958
DH		 1117 MPT_ADAPTER *ioc =
1118 container_of(work, MPT_ADAPTER, fc_rescan_work);
05e8ec17 1119 int ii;
65207fed 1120 u64 pn;
05e8ec17
MR		 1121 struct mptfc_rport_info *ri;
1122
3a0c56d8
MR		 1123 /* start by tagging all ports as missing */
1124 list_for_each_entry(ri, &ioc->fc_rports, list) {
1125 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
1126 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
05e8ec17 1127 }
3a0c56d8 1128 }
05e8ec17 1129
3a0c56d8
MR		 1130 /*
1131 * now rescan devices known to adapter,
1132 * will reregister existing rports
1133 */
1134 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1135 (void) mptfc_GetFcPortPage0(ioc, ii);
1136 mptfc_init_host_attr(ioc, ii); /* refresh */
1137 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
1138 }
05e8ec17 1139
3a0c56d8
MR		 1140 /* delete devices still missing */
1141 list_for_each_entry(ri, &ioc->fc_rports, list) {
1142 /* if newly missing, delete it */
1143 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
05e8ec17 1144
3a0c56d8
MR		 1145 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
1146 MPT_RPORT_INFO_FLAGS_MISSING);
1147 fc_remote_port_delete(ri->rport); /* won't sleep */
1148 ri->rport = NULL;
65207fed 1149
3a0c56d8
MR		 1150 pn = (u64)ri->pg0.WWPN.High << 32 |
1151 (u64)ri->pg0.WWPN.Low;
d6ecdd63 1152 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
3a0c56d8
MR		 1153 "mptfc_rescan.%d: %llx deleted\n",
1154 ioc->name,
1155 ioc->sh->host_no,
1156 (unsigned long long)pn));
05e8ec17 1157 }
3a0c56d8 1158 }
05e8ec17
MR		 1159}
1160
2496af39
MED		 1161static int
1162mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1163{
1164 struct Scsi_Host *sh;
1165 MPT_SCSI_HOST *hd;
1166 MPT_ADAPTER *ioc;
1167 unsigned long flags;
1ca00bb7 1168 int ii;
2496af39
MED		 1169 int numSGE = 0;
1170 int scale;
1171 int ioc_cap;
2496af39
MED		 1172 int error=0;
1173 int r;
05e8ec17 1174
2496af39
MED		 1175 if ((r = mpt_attach(pdev,id)) != 0)
1176 return r;
05e8ec17 1177
2496af39 1178 ioc = pci_get_drvdata(pdev);
d335cc38
MED		 1179 ioc->DoneCtx = mptfcDoneCtx;
1180 ioc->TaskCtx = mptfcTaskCtx;
1181 ioc->InternalCtx = mptfcInternalCtx;
2496af39
MED		 1182
1183 /* Added sanity check on readiness of the MPT adapter.
1184 */
1185 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
1186 printk(MYIOC_s_WARN_FMT
1187 "Skipping because it's not operational!\n",
1188 ioc->name);
7acec1e7
MED		 1189 error = -ENODEV;
1190 goto out_mptfc_probe;
2496af39
MED		 1191 }
1192
1193 if (!ioc->active) {
1194 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
1195 ioc->name);
7acec1e7
MED		 1196 error = -ENODEV;
1197 goto out_mptfc_probe;
2496af39
MED		 1198 }
1199
1200 /* Sanity check - ensure at least 1 port is INITIATOR capable
1201 */
1202 ioc_cap = 0;
1203 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1204 if (ioc->pfacts[ii].ProtocolFlags &
1205 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1206 ioc_cap ++;
1207 }
1208
1209 if (!ioc_cap) {
1210 printk(MYIOC_s_WARN_FMT
1211 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1212 ioc->name, ioc);
793955f5 1213 return 0;
2496af39
MED		 1214 }
1215
1216 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1217
1218 if (!sh) {
1219 printk(MYIOC_s_WARN_FMT
1220 "Unable to register controller with SCSI subsystem\n",
1221 ioc->name);
7acec1e7
MED		 1222 error = -1;
1223 goto out_mptfc_probe;
2496af39
MED		 1224 }
1225
80d3ac77 1226 spin_lock_init(&ioc->fc_rescan_work_lock);
c4028958
DH		 1227 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
1228 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
eb5329f4 1229 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
05e8ec17 1230
2496af39
MED		 1231 spin_lock_irqsave(&ioc->FreeQlock, flags);
1232
1233 /* Attach the SCSI Host to the IOC structure
1234 */
1235 ioc->sh = sh;
1236
1237 sh->io_port = 0;
1238 sh->n_io_port = 0;
1239 sh->irq = 0;
1240
1241 /* set 16 byte cdb's */
1242 sh->max_cmd_len = 16;
1243
793955f5
EM		 1244 sh->max_id = ioc->pfacts->MaxDevices;
1245 sh->max_lun = max_lun;
2496af39 1246
2496af39
MED		 1247 /* Required entry.
1248 */
1249 sh->unique_id = ioc->id;
1250
1251 /* Verify that we won't exceed the maximum
1252 * number of chain buffers
1253 * We can optimize: ZZ = req_sz/sizeof(SGE)
1254 * For 32bit SGE's:
1255 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1256 * + (req_sz - 64)/sizeof(SGE)
1257 * A slightly different algorithm is required for
1258 * 64bit SGEs.
1259 */
14d0f0b0
KD		 1260 scale = ioc->req_sz/ioc->SGE_size;
1261 if (ioc->sg_addr_size == sizeof(u64)) {
2496af39
MED		 1262 numSGE = (scale - 1) *
1263 (ioc->facts.MaxChainDepth-1) + scale +
14d0f0b0 1264 (ioc->req_sz - 60) / ioc->SGE_size;
2496af39
MED		 1265 } else {
1266 numSGE = 1 + (scale - 1) *
1267 (ioc->facts.MaxChainDepth-1) + scale +
14d0f0b0 1268 (ioc->req_sz - 64) / ioc->SGE_size;
2496af39
MED		 1269 }
1270
1271 if (numSGE < sh->sg_tablesize) {
1272 /* Reset this value */
d6ecdd63 1273 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2496af39
MED		 1274 "Resetting sg_tablesize to %d from %d\n",
1275 ioc->name, numSGE, sh->sg_tablesize));
1276 sh->sg_tablesize = numSGE;
1277 }
1278
2496af39
MED		 1279 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1280
e7eae9f6 1281 hd = shost_priv(sh);
2496af39
MED		 1282 hd->ioc = ioc;
1283
1284 /* SCSI needs scsi_cmnd lookup table!
1285 * (with size equal to req_depth*PtrSz!)
1286 */
e8206381
EM		 1287 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1288 if (!ioc->ScsiLookup) {
2496af39 1289 error = -ENOMEM;
7acec1e7 1290 goto out_mptfc_probe;
2496af39 1291 }
e8206381 1292 spin_lock_init(&ioc->scsi_lookup_lock);
2496af39 1293
d6ecdd63 1294 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
e8206381 1295 ioc->name, ioc->ScsiLookup));
2496af39 1296
2496af39
MED		 1297 hd->last_queue_full = 0;
1298
05e8ec17 1299 sh->transportt = mptfc_transport_template;
2496af39
MED		 1300 error = scsi_add_host (sh, &ioc->pcidev->dev);
1301 if(error) {
29dd3609
EM		 1302 dprintk(ioc, printk(MYIOC_s_ERR_FMT
1303 "scsi_add_host failed\n", ioc->name));
7acec1e7 1304 goto out_mptfc_probe;
2496af39
MED		 1305 }
1306
65207fed
ME		 1307 /* initialize workqueue */
1308
aab0de24
KS		 1309 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
1310 "mptfc_wq_%d", sh->host_no);
65207fed
ME		 1311 ioc->fc_rescan_work_q =
1312 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1313 if (!ioc->fc_rescan_work_q)
1314 goto out_mptfc_probe;
1315
80d3ac77
MR		 1316 /*
1317 * Pre-fetch FC port WWN and stuff...
1318 * (FCPortPage0_t stuff)
1319 */
1320 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1321 (void) mptfc_GetFcPortPage0(ioc, ii);
1322 }
ca2f938e 1323 mptfc_SetFcPortPage1_defaults(ioc);
80d3ac77 1324
65207fed
ME		 1325 /*
1326 * scan for rports -
1327 * by doing it via the workqueue, some locking is eliminated
1328 */
1329
65207fed
ME		 1330 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1331 flush_workqueue(ioc->fc_rescan_work_q);
05e8ec17 1332
2496af39
MED		 1333 return 0;
1334
7acec1e7 1335out_mptfc_probe:
2496af39
MED		 1336
1337 mptscsih_remove(pdev);
1338 return error;
1339}
1340
1341static struct pci_driver mptfc_driver = {
1342 .name = "mptfc",
1343 .id_table = mptfc_pci_table,
1344 .probe = mptfc_probe,
05e8ec17 1345 .remove = __devexit_p(mptfc_remove),
d18c3db5 1346 .shutdown = mptscsih_shutdown,
2496af39
MED		 1347#ifdef CONFIG_PM
1348 .suspend = mptscsih_suspend,
1349 .resume = mptscsih_resume,
1350#endif
1351};
1352
80d3ac77
MR		 1353static int
1354mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1355{
1356 MPT_SCSI_HOST *hd;
1357 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1358 unsigned long flags;
1359 int rc=1;
1360
d6ecdd63 1361 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
80d3ac77
MR		 1362 ioc->name, event));
1363
1364 if (ioc->sh == NULL ||
e7eae9f6 1365 ((hd = shost_priv(ioc->sh)) == NULL))
80d3ac77
MR		 1366 return 1;
1367
1368 switch (event) {
1369 case MPI_EVENT_RESCAN:
1370 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1371 if (ioc->fc_rescan_work_q) {
3a0c56d8
MR		 1372 queue_work(ioc->fc_rescan_work_q,
1373 &ioc->fc_rescan_work);
80d3ac77
MR		 1374 }
1375 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1376 break;
eb5329f4
PS		 1377 case MPI_EVENT_LINK_STATUS_CHANGE:
1378 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1379 if (ioc->fc_rescan_work_q) {
1380 queue_work(ioc->fc_rescan_work_q,
1381 &ioc->fc_lsc_work);
1382 }
1383 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1384 break;
80d3ac77
MR		 1385 default:
1386 rc = mptscsih_event_process(ioc,pEvReply);
1387 break;
1388 }
1389 return rc;
1390}
1391
1392static int
1393mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1394{
1395 int rc;
1396 unsigned long flags;
1397
1398 rc = mptscsih_ioc_reset(ioc,reset_phase);
1399 if (rc == 0)
1400 return rc;
1401
1402
d6ecdd63
PS		 1403 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1404 ": IOC %s_reset routed to FC host driver!\n",ioc->name,
80d3ac77
MR		 1405 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1406 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1407
1408 if (reset_phase == MPT_IOC_SETUP_RESET) {
419835e2
MR		 1409 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1410 if (ioc->fc_rescan_work_q) {
1411 queue_work(ioc->fc_rescan_work_q,
1412 &ioc->fc_setup_reset_work);
1413 }
1414 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
80d3ac77
MR		 1415 }
1416
1417 else if (reset_phase == MPT_IOC_PRE_RESET) {
1418 }
1419
1420 else { /* MPT_IOC_POST_RESET */
ca2f938e 1421 mptfc_SetFcPortPage1_defaults(ioc);
80d3ac77
MR		 1422 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1423 if (ioc->fc_rescan_work_q) {
3a0c56d8
MR		 1424 queue_work(ioc->fc_rescan_work_q,
1425 &ioc->fc_rescan_work);
80d3ac77
MR		 1426 }
1427 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1428 }
1429 return 1;
1430}
1431
2496af39
MED		 1432/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1433/**
d9489fb6 1434 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
2496af39
MED		 1435 *
1436 * Returns 0 for success, non-zero for failure.
1437 */
1438static int __init
1439mptfc_init(void)
1440{
05e8ec17 1441 int error;
2496af39
MED		 1442
1443 show_mptmod_ver(my_NAME, my_VERSION);
1444
ca2f938e
MR		 1445 /* sanity check module parameters */
1446 if (mptfc_dev_loss_tmo <= 0)
05e8ec17
MR		 1447 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1448
1449 mptfc_transport_template =
1450 fc_attach_transport(&mptfc_transport_functions);
1451
1452 if (!mptfc_transport_template)
1453 return -ENODEV;
1454
2496af39
MED		 1455 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1456 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1457 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1458
d6ecdd63
PS		 1459 mpt_event_register(mptfcDoneCtx, mptfc_event_process);
1460 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
2496af39 1461
05e8ec17 1462 error = pci_register_driver(&mptfc_driver);
3bc7bf1d 1463 if (error)
05e8ec17 1464 fc_release_transport(mptfc_transport_template);
05e8ec17
MR		 1465
1466 return error;
1467}
1468
1469/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1470/**
d9489fb6 1471 * mptfc_remove - Remove fc infrastructure for devices
05e8ec17
MR		 1472 * @pdev: Pointer to pci_dev structure
1473 *
1474 */
3bc7bf1d
MR		 1475static void __devexit
1476mptfc_remove(struct pci_dev *pdev)
05e8ec17 1477{
65207fed
ME		 1478 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1479 struct mptfc_rport_info *p, *n;
1480 struct workqueue_struct *work_q;
1481 unsigned long flags;
ca2f938e 1482 int ii;
65207fed
ME		 1483
1484 /* destroy workqueue */
1485 if ((work_q=ioc->fc_rescan_work_q)) {
1486 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1487 ioc->fc_rescan_work_q = NULL;
1488 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1489 destroy_workqueue(work_q);
1490 }
05e8ec17
MR		 1491
1492 fc_remove_host(ioc->sh);
1493
1494 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1495 list_del(&p->list);
1496 kfree(p);
1497 }
1498
ca2f938e
MR		 1499 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1500 if (ioc->fc_data.fc_port_page1[ii].data) {
1501 pci_free_consistent(ioc->pcidev,
1502 ioc->fc_data.fc_port_page1[ii].pg_sz,
1503 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1504 ioc->fc_data.fc_port_page1[ii].dma);
1505 ioc->fc_data.fc_port_page1[ii].data = NULL;
1506 }
1507 }
1508
05e8ec17 1509 mptscsih_remove(pdev);
2496af39
MED		 1510}
1511
1512/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1513/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1514/**
1515 * mptfc_exit - Unregisters MPT adapter(s)
1516 *
1517 */
1518static void __exit
1519mptfc_exit(void)
1520{
1521 pci_unregister_driver(&mptfc_driver);
05e8ec17
MR		 1522 fc_release_transport(mptfc_transport_template);
1523
2496af39 1524 mpt_reset_deregister(mptfcDoneCtx);
2496af39 1525 mpt_event_deregister(mptfcDoneCtx);
2496af39
MED		 1526
1527 mpt_deregister(mptfcInternalCtx);
1528 mpt_deregister(mptfcTaskCtx);
1529 mpt_deregister(mptfcDoneCtx);
1530}
1531
1532module_init(mptfc_init);
1533module_exit(mptfc_exit);
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