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.
6 * Copyright (c) 1999-2005 LSI Logic Corporation
7 * (mailto:mpt_linux_developer@lsil.com)
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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.
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.
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.
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
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
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>
58 #include <linux/sort.h>
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>
65 #include <scsi/scsi_transport_fc.h>
70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71 #define my_NAME "Fusion MPT FC Host driver"
72 #define my_VERSION MPT_LINUX_VERSION_COMMON
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
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)");
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."
92 static int mptfcDoneCtx = -1;
93 static int mptfcTaskCtx = -1;
94 static int mptfcInternalCtx = -1; /* Used only for internal commands */
96 static int mptfc_target_alloc(struct scsi_target *starget);
97 static int mptfc_slave_alloc(struct scsi_device *sdev);
98 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
99 void (*done)(struct scsi_cmnd *));
100 static void mptfc_target_destroy(struct scsi_target *starget);
101 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
102 static void __devexit mptfc_remove(struct pci_dev *pdev);
104 static struct scsi_host_template mptfc_driver_template = {
105 .module = THIS_MODULE,
106 .proc_name = "mptfc",
107 .proc_info = mptscsih_proc_info,
108 .name = "MPT FC Host",
109 .info = mptscsih_info,
110 .queuecommand = mptfc_qcmd,
111 .target_alloc = mptfc_target_alloc,
112 .slave_alloc = mptfc_slave_alloc,
113 .slave_configure = mptscsih_slave_configure,
114 .target_destroy = mptfc_target_destroy,
115 .slave_destroy = mptscsih_slave_destroy,
116 .change_queue_depth = mptscsih_change_queue_depth,
117 .eh_abort_handler = mptscsih_abort,
118 .eh_device_reset_handler = mptscsih_dev_reset,
119 .eh_bus_reset_handler = mptscsih_bus_reset,
120 .eh_host_reset_handler = mptscsih_host_reset,
121 .bios_param = mptscsih_bios_param,
122 .can_queue = MPT_FC_CAN_QUEUE,
124 .sg_tablesize = MPT_SCSI_SG_DEPTH,
127 .use_clustering = ENABLE_CLUSTERING,
130 /****************************************************************************
134 static struct pci_device_id mptfc_pci_table[] = {
135 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
136 PCI_ANY_ID, PCI_ANY_ID },
137 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
138 PCI_ANY_ID, PCI_ANY_ID },
139 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
140 PCI_ANY_ID, PCI_ANY_ID },
141 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
142 PCI_ANY_ID, PCI_ANY_ID },
143 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
144 PCI_ANY_ID, PCI_ANY_ID },
145 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
146 PCI_ANY_ID, PCI_ANY_ID },
147 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
148 PCI_ANY_ID, PCI_ANY_ID },
149 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES,
150 PCI_ANY_ID, PCI_ANY_ID },
151 {0} /* Terminating entry */
153 MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
155 static struct scsi_transport_template *mptfc_transport_template = NULL;
157 static struct fc_function_template mptfc_transport_functions = {
158 .dd_fcrport_size = 8,
159 .show_host_node_name = 1,
160 .show_host_port_name = 1,
161 .show_host_supported_classes = 1,
162 .show_host_port_id = 1,
163 .show_rport_supported_classes = 1,
164 .show_starget_node_name = 1,
165 .show_starget_port_name = 1,
166 .show_starget_port_id = 1,
167 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
168 .show_rport_dev_loss_tmo = 1,
173 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
176 rport->dev_loss_tmo = timeout;
178 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
182 mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
184 FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
185 FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
187 if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
188 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
190 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
194 if ((*aa)->CurrentBus < (*bb)->CurrentBus)
200 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
201 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
203 ConfigPageHeader_t hdr;
205 FCDevicePage0_t *ppage0_alloc, *fc;
206 dma_addr_t page0_dma;
210 FCDevicePage0_t *p0_array=NULL, *p_p0;
211 FCDevicePage0_t **pp0_array=NULL, **p_pp0;
214 U32 port_id = 0xffffff;
216 int max_bus = ioc->facts.MaxBuses;
217 int max_targ = ioc->facts.MaxDevices;
219 if (max_bus == 0 || max_targ == 0)
222 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
223 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
227 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
228 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
233 /* Get FC Device Page 0 header */
237 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
238 cfg.cfghdr.hdr = &hdr;
240 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
242 cfg.pageAddr = port_id;
245 if ((rc = mpt_config(ioc, &cfg)) != 0)
248 if (hdr.PageLength <= 0)
251 data_sz = hdr.PageLength * 4;
252 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
258 cfg.physAddr = page0_dma;
259 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
261 if ((rc = mpt_config(ioc, &cfg)) == 0) {
262 ppage0_alloc->PortIdentifier =
263 le32_to_cpu(ppage0_alloc->PortIdentifier);
265 ppage0_alloc->WWNN.Low =
266 le32_to_cpu(ppage0_alloc->WWNN.Low);
268 ppage0_alloc->WWNN.High =
269 le32_to_cpu(ppage0_alloc->WWNN.High);
271 ppage0_alloc->WWPN.Low =
272 le32_to_cpu(ppage0_alloc->WWPN.Low);
274 ppage0_alloc->WWPN.High =
275 le32_to_cpu(ppage0_alloc->WWPN.High);
277 ppage0_alloc->BBCredit =
278 le16_to_cpu(ppage0_alloc->BBCredit);
280 ppage0_alloc->MaxRxFrameSize =
281 le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
283 port_id = ppage0_alloc->PortIdentifier;
285 *p_p0 = *ppage0_alloc; /* save data */
286 *p_pp0++ = p_p0++; /* save addr */
288 pci_free_consistent(ioc->pcidev, data_sz,
289 (u8 *) ppage0_alloc, page0_dma);
293 } while (port_id <= 0xff0000);
298 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
299 mptfc_FcDevPage0_cmp_func, NULL);
300 /* call caller's func for each targ */
301 for (ii = 0; ii < num_targ; ii++) {
302 fc = *(pp0_array+ii);
303 func(ioc, ioc_port, fc);
316 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
318 /* not currently usable */
319 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
320 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
323 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
326 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
330 * board data structure already normalized to platform endianness
331 * shifted to avoid unaligned access on 64 bit architecture
333 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
334 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
335 rid->port_id = pg0->PortIdentifier;
336 rid->roles = FC_RPORT_ROLE_UNKNOWN;
342 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
344 struct fc_rport_identifiers rport_ids;
345 struct fc_rport *rport;
346 struct mptfc_rport_info *ri;
350 u32 roles = FC_RPORT_ROLE_UNKNOWN;
352 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
355 roles |= FC_RPORT_ROLE_FCP_TARGET;
356 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
357 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
359 /* scan list looking for a match */
360 list_for_each_entry(ri, &ioc->fc_rports, list) {
361 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
362 if (pn == rport_ids.port_name) { /* match */
363 list_move_tail(&ri->list, &ioc->fc_rports);
368 if (new_ri) { /* allocate one */
369 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
372 list_add_tail(&ri->list, &ioc->fc_rports);
375 ri->pg0 = *pg0; /* add/update pg0 data */
376 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
378 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
379 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
380 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
381 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
384 if (new_ri) /* may have been reset by user */
385 rport->dev_loss_tmo = mptfc_dev_loss_tmo;
387 * if already mapped, remap here. If not mapped,
388 * target_alloc will allocate vtarget and map,
389 * slave_alloc will fill in vdev from vtarget.
392 vtarget = ri->starget->hostdata;
394 vtarget->target_id = pg0->CurrentTargetID;
395 vtarget->bus_id = pg0->CurrentBus;
398 *((struct mptfc_rport_info **)rport->dd_data) = ri;
399 /* scan will be scheduled once rport becomes a target */
400 fc_remote_port_rolechg(rport,roles);
402 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
403 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
404 dfcprintk ((MYIOC_s_INFO_FMT
405 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
406 "rport tid %d, tmo %d\n",
410 (unsigned long long)nn,
411 (unsigned long long)pn,
412 pg0->CurrentTargetID,
413 ri->rport->scsi_target_id,
414 ri->rport->dev_loss_tmo));
424 * OS entry point to allow for host driver to free allocated memory
425 * Called if no device present or device being unloaded
428 mptfc_target_destroy(struct scsi_target *starget)
430 struct fc_rport *rport;
431 struct mptfc_rport_info *ri;
433 rport = starget_to_rport(starget);
435 ri = *((struct mptfc_rport_info **)rport->dd_data);
436 if (ri) /* better be! */
439 if (starget->hostdata)
440 kfree(starget->hostdata);
441 starget->hostdata = NULL;
445 * OS entry point to allow host driver to alloc memory
446 * for each scsi target. Called once per device the bus scan.
447 * Return non-zero if allocation fails.
450 mptfc_target_alloc(struct scsi_target *starget)
453 struct fc_rport *rport;
454 struct mptfc_rport_info *ri;
457 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
460 starget->hostdata = vtarget;
463 rport = starget_to_rport(starget);
465 ri = *((struct mptfc_rport_info **)rport->dd_data);
466 if (ri) { /* better be! */
467 vtarget->target_id = ri->pg0.CurrentTargetID;
468 vtarget->bus_id = ri->pg0.CurrentBus;
469 ri->starget = starget;
475 starget->hostdata = NULL;
482 * OS entry point to allow host driver to alloc memory
483 * for each scsi device. Called once per device the bus scan.
484 * Return non-zero if allocation fails.
485 * Init memory once per LUN.
488 mptfc_slave_alloc(struct scsi_device *sdev)
493 struct scsi_target *starget;
494 struct fc_rport *rport;
497 starget = scsi_target(sdev);
498 rport = starget_to_rport(starget);
500 if (!rport || fc_remote_port_chkready(rport))
503 hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
505 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
507 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
508 hd->ioc->name, sizeof(VirtDevice));
513 sdev->hostdata = vdev;
514 vtarget = starget->hostdata;
516 if (vtarget->num_luns == 0) {
517 vtarget->ioc_id = hd->ioc->id;
518 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES |
519 MPT_TARGET_FLAGS_VALID_INQUIRY;
520 hd->Targets[sdev->id] = vtarget;
523 vdev->vtarget = vtarget;
524 vdev->lun = sdev->lun;
532 struct mptfc_rport_info *ri;
533 ri = *((struct mptfc_rport_info **)rport->dd_data);
534 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
535 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
536 dfcprintk ((MYIOC_s_INFO_FMT
537 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
538 "CurrentTargetID %d, %x %llx %llx\n",
542 sdev->id, ri->pg0.CurrentTargetID,
543 ri->pg0.PortIdentifier,
544 (unsigned long long)pn,
545 (unsigned long long)nn));
553 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
555 struct mptfc_rport_info *ri;
556 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
559 err = fc_remote_port_chkready(rport);
566 /* dd_data is null until finished adding target */
567 ri = *((struct mptfc_rport_info **)rport->dd_data);
569 dfcprintk ((MYIOC_s_INFO_FMT
570 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n",
571 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
572 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
573 SCpnt->device->id,SCpnt->device->lun));
574 SCpnt->result = DID_IMM_RETRY << 16;
579 err = mptscsih_qcmd(SCpnt,done);
582 dfcprintk ((MYIOC_s_INFO_FMT
583 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero, (%x).\n",
584 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name,
585 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no,
586 SCpnt->device->id,SCpnt->device->lun,err));
593 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
594 * @ioc: Pointer to MPT_ADAPTER structure
595 * @portnum: IOC Port number
597 * Return: 0 for success
598 * -ENOMEM if no memory available
599 * -EPERM if not allowed due to ISR context
600 * -EAGAIN if no msg frames currently available
601 * -EFAULT for non-successful reply or no reply (timeout)
602 * -EINVAL portnum arg out of range (hardwired to two elements)
605 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
607 ConfigPageHeader_t hdr;
609 FCPortPage0_t *ppage0_alloc;
610 FCPortPage0_t *pp0dest;
611 dma_addr_t page0_dma;
620 /* Get FCPort Page 0 header */
624 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
625 cfg.cfghdr.hdr = &hdr;
627 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
629 cfg.pageAddr = portnum;
632 if ((rc = mpt_config(ioc, &cfg)) != 0)
635 if (hdr.PageLength == 0)
638 data_sz = hdr.PageLength * 4;
640 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
644 memset((u8 *)ppage0_alloc, 0, data_sz);
645 cfg.physAddr = page0_dma;
646 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
648 if ((rc = mpt_config(ioc, &cfg)) == 0) {
650 pp0dest = &ioc->fc_port_page0[portnum];
651 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
652 memcpy(pp0dest, ppage0_alloc, copy_sz);
655 * Normalize endianness of structure data,
656 * by byte-swapping all > 1 byte fields!
658 pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
659 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
660 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
661 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
662 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
663 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
664 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
665 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
666 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
667 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
668 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
669 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
670 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
671 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
672 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
673 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
676 * if still doing discovery,
677 * hang loose a while until finished
679 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
684 printk(MYIOC_s_INFO_FMT "Firmware discovery not"
690 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
697 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
699 ConfigPageHeader_t hdr;
706 if (!(ioc->fc_data.fc_port_page1[portnum].data))
709 /* get fcport page 1 header */
713 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
714 cfg.cfghdr.hdr = &hdr;
716 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
718 cfg.pageAddr = portnum;
721 if ((rc = mpt_config(ioc, &cfg)) != 0)
724 if (hdr.PageLength == 0)
727 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
730 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
731 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
734 rc = mpt_config(ioc, &cfg);
740 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
742 ConfigPageHeader_t hdr;
744 FCPortPage1_t *page1_alloc;
745 dma_addr_t page1_dma;
752 /* get fcport page 1 header */
756 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
757 cfg.cfghdr.hdr = &hdr;
759 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
761 cfg.pageAddr = portnum;
764 if ((rc = mpt_config(ioc, &cfg)) != 0)
767 if (hdr.PageLength == 0)
772 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
773 data_sz = hdr.PageLength * 4;
774 if (data_sz < sizeof(FCPortPage1_t))
775 data_sz = sizeof(FCPortPage1_t);
777 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
784 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
785 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
786 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
787 if (hdr.PageLength * 4 > data_sz) {
788 ioc->fc_data.fc_port_page1[portnum].data = NULL;
789 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
790 page1_alloc, page1_dma);
795 memset(page1_alloc,0,data_sz);
797 cfg.physAddr = page1_dma;
798 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
800 if ((rc = mpt_config(ioc, &cfg)) == 0) {
801 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
802 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
803 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
806 ioc->fc_data.fc_port_page1[portnum].data = NULL;
807 pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
808 page1_alloc, page1_dma);
815 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
820 #define MPTFC_FW_DEVICE_TIMEOUT (1)
821 #define MPTFC_FW_IO_PEND_TIMEOUT (1)
822 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
823 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
825 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
826 if (mptfc_GetFcPortPage1(ioc, ii) != 0)
828 pp1 = ioc->fc_data.fc_port_page1[ii].data;
829 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
830 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
831 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
832 && ((pp1->Flags & OFF_FLAGS) == 0))
834 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
835 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
836 pp1->Flags &= ~OFF_FLAGS;
837 pp1->Flags |= ON_FLAGS;
838 mptfc_WriteFcPortPage1(ioc, ii);
844 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
846 unsigned class = 0, cos = 0;
848 /* don't know what to do as only one scsi (fc) host was allocated */
852 class = ioc->fc_port_page0[portnum].SupportedServiceClass;
853 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
854 cos |= FC_COS_CLASS1;
855 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
856 cos |= FC_COS_CLASS2;
857 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
858 cos |= FC_COS_CLASS3;
860 fc_host_node_name(ioc->sh) =
861 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32
862 | (u64)ioc->fc_port_page0[portnum].WWNN.Low;
864 fc_host_port_name(ioc->sh) =
865 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32
866 | (u64)ioc->fc_port_page0[portnum].WWPN.Low;
868 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier;
870 fc_host_supported_classes(ioc->sh) = cos;
872 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN;
876 mptfc_setup_reset(void *arg)
878 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
880 struct mptfc_rport_info *ri;
882 /* reset about to happen, delete (block) all rports */
883 list_for_each_entry(ri, &ioc->fc_rports, list) {
884 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
885 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
886 fc_remote_port_delete(ri->rport); /* won't sleep */
889 pn = (u64)ri->pg0.WWPN.High << 32 |
890 (u64)ri->pg0.WWPN.Low;
891 dfcprintk ((MYIOC_s_INFO_FMT
892 "mptfc_setup_reset.%d: %llx deleted\n",
895 (unsigned long long)pn));
901 mptfc_rescan_devices(void *arg)
903 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
908 struct mptfc_rport_info *ri;
911 /* start by tagging all ports as missing */
912 list_for_each_entry(ri, &ioc->fc_rports, list) {
913 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
914 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
919 * now rescan devices known to adapter,
920 * will reregister existing rports
922 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
923 (void) mptfc_GetFcPortPage0(ioc, ii);
924 mptfc_init_host_attr(ioc,ii); /* refresh */
925 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
928 /* delete devices still missing */
929 list_for_each_entry(ri, &ioc->fc_rports, list) {
930 /* if newly missing, delete it */
931 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
933 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
934 MPT_RPORT_INFO_FLAGS_MISSING);
935 fc_remote_port_delete(ri->rport); /* won't sleep */
938 pn = (u64)ri->pg0.WWPN.High << 32 |
939 (u64)ri->pg0.WWPN.Low;
940 dfcprintk ((MYIOC_s_INFO_FMT
941 "mptfc_rescan.%d: %llx deleted\n",
944 (unsigned long long)pn));
949 * allow multiple passes as target state
950 * might have changed during scan
952 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
953 if (ioc->fc_rescan_work_count > 2) /* only need one more */
954 ioc->fc_rescan_work_count = 2;
955 work_to_do = --ioc->fc_rescan_work_count;
956 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
957 } while (work_to_do);
961 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
963 struct Scsi_Host *sh;
974 if ((r = mpt_attach(pdev,id)) != 0)
977 ioc = pci_get_drvdata(pdev);
978 ioc->DoneCtx = mptfcDoneCtx;
979 ioc->TaskCtx = mptfcTaskCtx;
980 ioc->InternalCtx = mptfcInternalCtx;
982 /* Added sanity check on readiness of the MPT adapter.
984 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
985 printk(MYIOC_s_WARN_FMT
986 "Skipping because it's not operational!\n",
989 goto out_mptfc_probe;
993 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
996 goto out_mptfc_probe;
999 /* Sanity check - ensure at least 1 port is INITIATOR capable
1002 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1003 if (ioc->pfacts[ii].ProtocolFlags &
1004 MPI_PORTFACTS_PROTOCOL_INITIATOR)
1009 printk(MYIOC_s_WARN_FMT
1010 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
1015 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
1018 printk(MYIOC_s_WARN_FMT
1019 "Unable to register controller with SCSI subsystem\n",
1022 goto out_mptfc_probe;
1025 spin_lock_init(&ioc->fc_rescan_work_lock);
1026 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc);
1027 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset, (void *)ioc);
1029 spin_lock_irqsave(&ioc->FreeQlock, flags);
1031 /* Attach the SCSI Host to the IOC structure
1039 /* set 16 byte cdb's */
1040 sh->max_cmd_len = 16;
1042 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
1044 sh->max_lun = MPT_LAST_LUN + 1;
1045 sh->max_channel = 0;
1046 sh->this_id = ioc->pfacts[0].PortSCSIID;
1050 sh->unique_id = ioc->id;
1052 /* Verify that we won't exceed the maximum
1053 * number of chain buffers
1054 * We can optimize: ZZ = req_sz/sizeof(SGE)
1056 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
1057 * + (req_sz - 64)/sizeof(SGE)
1058 * A slightly different algorithm is required for
1061 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
1062 if (sizeof(dma_addr_t) == sizeof(u64)) {
1063 numSGE = (scale - 1) *
1064 (ioc->facts.MaxChainDepth-1) + scale +
1065 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
1068 numSGE = 1 + (scale - 1) *
1069 (ioc->facts.MaxChainDepth-1) + scale +
1070 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
1074 if (numSGE < sh->sg_tablesize) {
1075 /* Reset this value */
1076 dprintk((MYIOC_s_INFO_FMT
1077 "Resetting sg_tablesize to %d from %d\n",
1078 ioc->name, numSGE, sh->sg_tablesize));
1079 sh->sg_tablesize = numSGE;
1082 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1084 hd = (MPT_SCSI_HOST *) sh->hostdata;
1087 /* SCSI needs scsi_cmnd lookup table!
1088 * (with size equal to req_depth*PtrSz!)
1090 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1091 if (!hd->ScsiLookup) {
1093 goto out_mptfc_probe;
1096 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1097 ioc->name, hd->ScsiLookup));
1099 /* Allocate memory for the device structures.
1100 * A non-Null pointer at an offset
1101 * indicates a device exists.
1102 * max_id = 1 + maximum id (hosts.h)
1104 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
1107 goto out_mptfc_probe;
1110 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
1112 /* Clear the TM flags
1115 hd->tmState = TM_STATE_NONE;
1116 hd->resetPending = 0;
1117 hd->abortSCpnt = NULL;
1119 /* Clear the pointer used to store
1120 * single-threaded commands, i.e., those
1121 * issued during a bus scan, dv and
1122 * configuration pages.
1126 /* Initialize this SCSI Hosts' timers
1127 * To use, set the timer expires field
1130 init_timer(&hd->timer);
1131 hd->timer.data = (unsigned long) hd;
1132 hd->timer.function = mptscsih_timer_expired;
1134 hd->mpt_pq_filter = mpt_pq_filter;
1136 ddvprintk((MYIOC_s_INFO_FMT
1137 "mpt_pq_filter %x\n",
1141 init_waitqueue_head(&hd->scandv_waitq);
1142 hd->scandv_wait_done = 0;
1143 hd->last_queue_full = 0;
1145 sh->transportt = mptfc_transport_template;
1146 error = scsi_add_host (sh, &ioc->pcidev->dev);
1148 dprintk((KERN_ERR MYNAM
1149 "scsi_add_host failed\n"));
1150 goto out_mptfc_probe;
1153 /* initialize workqueue */
1155 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
1157 ioc->fc_rescan_work_q =
1158 create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
1159 if (!ioc->fc_rescan_work_q)
1160 goto out_mptfc_probe;
1163 * Pre-fetch FC port WWN and stuff...
1164 * (FCPortPage0_t stuff)
1166 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
1167 (void) mptfc_GetFcPortPage0(ioc, ii);
1169 mptfc_SetFcPortPage1_defaults(ioc);
1173 * by doing it via the workqueue, some locking is eliminated
1176 ioc->fc_rescan_work_count = 1;
1177 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1178 flush_workqueue(ioc->fc_rescan_work_q);
1184 mptscsih_remove(pdev);
1188 static struct pci_driver mptfc_driver = {
1190 .id_table = mptfc_pci_table,
1191 .probe = mptfc_probe,
1192 .remove = __devexit_p(mptfc_remove),
1193 .shutdown = mptscsih_shutdown,
1195 .suspend = mptscsih_suspend,
1196 .resume = mptscsih_resume,
1201 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1204 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
1205 unsigned long flags;
1208 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1211 if (ioc->sh == NULL ||
1212 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
1216 case MPI_EVENT_RESCAN:
1217 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1218 if (ioc->fc_rescan_work_q) {
1219 if (ioc->fc_rescan_work_count++ == 0) {
1220 queue_work(ioc->fc_rescan_work_q,
1221 &ioc->fc_rescan_work);
1224 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1227 rc = mptscsih_event_process(ioc,pEvReply);
1234 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1237 unsigned long flags;
1239 rc = mptscsih_ioc_reset(ioc,reset_phase);
1244 dtmprintk((KERN_WARNING MYNAM
1245 ": IOC %s_reset routed to FC host driver!\n",
1246 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
1247 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1249 if (reset_phase == MPT_IOC_SETUP_RESET) {
1250 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1251 if (ioc->fc_rescan_work_q) {
1252 queue_work(ioc->fc_rescan_work_q,
1253 &ioc->fc_setup_reset_work);
1255 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1258 else if (reset_phase == MPT_IOC_PRE_RESET) {
1261 else { /* MPT_IOC_POST_RESET */
1262 mptfc_SetFcPortPage1_defaults(ioc);
1263 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1264 if (ioc->fc_rescan_work_q) {
1265 if (ioc->fc_rescan_work_count++ == 0) {
1266 queue_work(ioc->fc_rescan_work_q,
1267 &ioc->fc_rescan_work);
1270 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1275 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1277 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with
1278 * linux scsi mid-layer.
1280 * Returns 0 for success, non-zero for failure.
1287 show_mptmod_ver(my_NAME, my_VERSION);
1289 /* sanity check module parameters */
1290 if (mptfc_dev_loss_tmo <= 0)
1291 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
1293 mptfc_transport_template =
1294 fc_attach_transport(&mptfc_transport_functions);
1296 if (!mptfc_transport_template)
1299 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
1300 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
1301 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
1303 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) {
1304 devtverboseprintk((KERN_INFO MYNAM
1305 ": Registered for IOC event notifications\n"));
1308 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) {
1309 dprintk((KERN_INFO MYNAM
1310 ": Registered for IOC reset notifications\n"));
1313 error = pci_register_driver(&mptfc_driver);
1315 fc_release_transport(mptfc_transport_template);
1320 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1322 * mptfc_remove - Removed fc infrastructure for devices
1323 * @pdev: Pointer to pci_dev structure
1326 static void __devexit
1327 mptfc_remove(struct pci_dev *pdev)
1329 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1330 struct mptfc_rport_info *p, *n;
1331 struct workqueue_struct *work_q;
1332 unsigned long flags;
1335 /* destroy workqueue */
1336 if ((work_q=ioc->fc_rescan_work_q)) {
1337 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1338 ioc->fc_rescan_work_q = NULL;
1339 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1340 destroy_workqueue(work_q);
1343 fc_remove_host(ioc->sh);
1345 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
1350 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
1351 if (ioc->fc_data.fc_port_page1[ii].data) {
1352 pci_free_consistent(ioc->pcidev,
1353 ioc->fc_data.fc_port_page1[ii].pg_sz,
1354 (u8 *) ioc->fc_data.fc_port_page1[ii].data,
1355 ioc->fc_data.fc_port_page1[ii].dma);
1356 ioc->fc_data.fc_port_page1[ii].data = NULL;
1360 mptscsih_remove(pdev);
1363 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1364 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1366 * mptfc_exit - Unregisters MPT adapter(s)
1372 pci_unregister_driver(&mptfc_driver);
1373 fc_release_transport(mptfc_transport_template);
1375 mpt_reset_deregister(mptfcDoneCtx);
1376 dprintk((KERN_INFO MYNAM
1377 ": Deregistered for IOC reset notifications\n"));
1379 mpt_event_deregister(mptfcDoneCtx);
1380 dprintk((KERN_INFO MYNAM
1381 ": Deregistered for IOC event notifications\n"));
1383 mpt_deregister(mptfcInternalCtx);
1384 mpt_deregister(mptfcTaskCtx);
1385 mpt_deregister(mptfcDoneCtx);
1388 module_init(mptfc_init);
1389 module_exit(mptfc_exit);