Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 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> |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 58 | #include <linux/sort.h> |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 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> |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 65 | #include <scsi/scsi_transport_fc.h> |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 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 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 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 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 92 | static int mptfcDoneCtx = -1; |
| 93 | static int mptfcTaskCtx = -1; |
| 94 | static int mptfcInternalCtx = -1; /* Used only for internal commands */ |
| 95 | |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 96 | static int mptfc_target_alloc(struct scsi_target *starget); |
| 97 | static int mptfc_slave_alloc(struct scsi_device *sdev); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 98 | static int mptfc_qcmd(struct scsi_cmnd *SCpnt, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 99 | void (*done)(struct scsi_cmnd *)); |
| 100 | static void mptfc_target_destroy(struct scsi_target *starget); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 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); |
| 103 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 104 | static struct scsi_host_template mptfc_driver_template = { |
Moore, Eric Dean | f78496d | 2005-11-16 18:54:14 -0700 | [diff] [blame] | 105 | .module = THIS_MODULE, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 106 | .proc_name = "mptfc", |
| 107 | .proc_info = mptscsih_proc_info, |
| 108 | .name = "MPT FC Host", |
| 109 | .info = mptscsih_info, |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 110 | .queuecommand = mptfc_qcmd, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 111 | .target_alloc = mptfc_target_alloc, |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 112 | .slave_alloc = mptfc_slave_alloc, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 113 | .slave_configure = mptscsih_slave_configure, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 114 | .target_destroy = mptfc_target_destroy, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 115 | .slave_destroy = mptscsih_slave_destroy, |
Moore, Eric Dean | 6e3815b | 2005-06-24 12:18:57 -0600 | [diff] [blame] | 116 | .change_queue_depth = mptscsih_change_queue_depth, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 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, |
| 123 | .this_id = -1, |
| 124 | .sg_tablesize = MPT_SCSI_SG_DEPTH, |
| 125 | .max_sectors = 8192, |
| 126 | .cmd_per_lun = 7, |
| 127 | .use_clustering = ENABLE_CLUSTERING, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 128 | }; |
| 129 | |
| 130 | /**************************************************************************** |
| 131 | * Supported hardware |
| 132 | */ |
| 133 | |
| 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 }, |
Moore, Eric Dean | 3fadc59 | 2005-05-11 17:46:52 -0600 | [diff] [blame] | 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 }, |
Moore, Eric | 6d5b0c3 | 2006-01-13 16:25:26 -0700 | [diff] [blame] | 149 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES, |
| 150 | PCI_ANY_ID, PCI_ANY_ID }, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 151 | {0} /* Terminating entry */ |
| 152 | }; |
| 153 | MODULE_DEVICE_TABLE(pci, mptfc_pci_table); |
| 154 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 155 | static struct scsi_transport_template *mptfc_transport_template = NULL; |
| 156 | |
Adrian Bunk | 03fbcbc | 2006-01-25 02:00:52 +0100 | [diff] [blame] | 157 | static struct fc_function_template mptfc_transport_functions = { |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 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, |
| 169 | |
| 170 | }; |
| 171 | |
| 172 | /* FIXME! values controlling firmware RESCAN event |
| 173 | * need to be set low to allow dev_loss_tmo to |
| 174 | * work as expected. Currently, firmware doesn't |
| 175 | * notify driver of RESCAN event until some number |
| 176 | * of seconds elapse. This value can be set via |
| 177 | * lsiutil. |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 178 | */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 179 | static void |
| 180 | mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) |
| 181 | { |
| 182 | if (timeout > 0) |
| 183 | rport->dev_loss_tmo = timeout; |
| 184 | else |
| 185 | rport->dev_loss_tmo = mptfc_dev_loss_tmo; |
| 186 | } |
| 187 | |
| 188 | static int |
| 189 | mptfc_FcDevPage0_cmp_func(const void *a, const void *b) |
| 190 | { |
| 191 | FCDevicePage0_t **aa = (FCDevicePage0_t **)a; |
| 192 | FCDevicePage0_t **bb = (FCDevicePage0_t **)b; |
| 193 | |
| 194 | if ((*aa)->CurrentBus == (*bb)->CurrentBus) { |
| 195 | if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) |
| 196 | return 0; |
| 197 | if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) |
| 198 | return -1; |
| 199 | return 1; |
| 200 | } |
| 201 | if ((*aa)->CurrentBus < (*bb)->CurrentBus) |
| 202 | return -1; |
| 203 | return 1; |
| 204 | } |
| 205 | |
| 206 | static int |
| 207 | mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, |
| 208 | void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) |
| 209 | { |
| 210 | ConfigPageHeader_t hdr; |
| 211 | CONFIGPARMS cfg; |
| 212 | FCDevicePage0_t *ppage0_alloc, *fc; |
| 213 | dma_addr_t page0_dma; |
| 214 | int data_sz; |
| 215 | int ii; |
| 216 | |
| 217 | FCDevicePage0_t *p0_array=NULL, *p_p0; |
| 218 | FCDevicePage0_t **pp0_array=NULL, **p_pp0; |
| 219 | |
| 220 | int rc = -ENOMEM; |
| 221 | U32 port_id = 0xffffff; |
| 222 | int num_targ = 0; |
| 223 | int max_bus = ioc->facts.MaxBuses; |
| 224 | int max_targ = ioc->facts.MaxDevices; |
| 225 | |
| 226 | if (max_bus == 0 || max_targ == 0) |
| 227 | goto out; |
| 228 | |
| 229 | data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; |
| 230 | p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); |
| 231 | if (!p0_array) |
| 232 | goto out; |
| 233 | |
| 234 | data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; |
| 235 | p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); |
| 236 | if (!pp0_array) |
| 237 | goto out; |
| 238 | |
| 239 | do { |
| 240 | /* Get FC Device Page 0 header */ |
| 241 | hdr.PageVersion = 0; |
| 242 | hdr.PageLength = 0; |
| 243 | hdr.PageNumber = 0; |
| 244 | hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; |
| 245 | cfg.cfghdr.hdr = &hdr; |
| 246 | cfg.physAddr = -1; |
| 247 | cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
| 248 | cfg.dir = 0; |
| 249 | cfg.pageAddr = port_id; |
| 250 | cfg.timeout = 0; |
| 251 | |
| 252 | if ((rc = mpt_config(ioc, &cfg)) != 0) |
| 253 | break; |
| 254 | |
| 255 | if (hdr.PageLength <= 0) |
| 256 | break; |
| 257 | |
| 258 | data_sz = hdr.PageLength * 4; |
| 259 | ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, |
| 260 | &page0_dma); |
| 261 | rc = -ENOMEM; |
| 262 | if (!ppage0_alloc) |
| 263 | break; |
| 264 | |
| 265 | cfg.physAddr = page0_dma; |
| 266 | cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; |
| 267 | |
| 268 | if ((rc = mpt_config(ioc, &cfg)) == 0) { |
| 269 | ppage0_alloc->PortIdentifier = |
| 270 | le32_to_cpu(ppage0_alloc->PortIdentifier); |
| 271 | |
| 272 | ppage0_alloc->WWNN.Low = |
| 273 | le32_to_cpu(ppage0_alloc->WWNN.Low); |
| 274 | |
| 275 | ppage0_alloc->WWNN.High = |
| 276 | le32_to_cpu(ppage0_alloc->WWNN.High); |
| 277 | |
| 278 | ppage0_alloc->WWPN.Low = |
| 279 | le32_to_cpu(ppage0_alloc->WWPN.Low); |
| 280 | |
| 281 | ppage0_alloc->WWPN.High = |
| 282 | le32_to_cpu(ppage0_alloc->WWPN.High); |
| 283 | |
| 284 | ppage0_alloc->BBCredit = |
| 285 | le16_to_cpu(ppage0_alloc->BBCredit); |
| 286 | |
| 287 | ppage0_alloc->MaxRxFrameSize = |
| 288 | le16_to_cpu(ppage0_alloc->MaxRxFrameSize); |
| 289 | |
| 290 | port_id = ppage0_alloc->PortIdentifier; |
| 291 | num_targ++; |
| 292 | *p_p0 = *ppage0_alloc; /* save data */ |
| 293 | *p_pp0++ = p_p0++; /* save addr */ |
| 294 | } |
| 295 | pci_free_consistent(ioc->pcidev, data_sz, |
| 296 | (u8 *) ppage0_alloc, page0_dma); |
| 297 | if (rc != 0) |
| 298 | break; |
| 299 | |
| 300 | } while (port_id <= 0xff0000); |
| 301 | |
| 302 | if (num_targ) { |
| 303 | /* sort array */ |
| 304 | if (num_targ > 1) |
| 305 | sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), |
| 306 | mptfc_FcDevPage0_cmp_func, NULL); |
| 307 | /* call caller's func for each targ */ |
| 308 | for (ii = 0; ii < num_targ; ii++) { |
| 309 | fc = *(pp0_array+ii); |
| 310 | func(ioc, ioc_port, fc); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | out: |
| 315 | if (pp0_array) |
| 316 | kfree(pp0_array); |
| 317 | if (p0_array) |
| 318 | kfree(p0_array); |
| 319 | return rc; |
| 320 | } |
| 321 | |
| 322 | static int |
| 323 | mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) |
| 324 | { |
| 325 | /* not currently usable */ |
| 326 | if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | |
| 327 | MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) |
| 328 | return -1; |
| 329 | |
| 330 | if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) |
| 331 | return -1; |
| 332 | |
| 333 | if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) |
| 334 | return -1; |
| 335 | |
| 336 | /* |
| 337 | * board data structure already normalized to platform endianness |
| 338 | * shifted to avoid unaligned access on 64 bit architecture |
| 339 | */ |
| 340 | rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; |
| 341 | rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; |
| 342 | rid->port_id = pg0->PortIdentifier; |
| 343 | rid->roles = FC_RPORT_ROLE_UNKNOWN; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 344 | |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) |
| 350 | { |
| 351 | struct fc_rport_identifiers rport_ids; |
| 352 | struct fc_rport *rport; |
| 353 | struct mptfc_rport_info *ri; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 354 | int new_ri = 1; |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 355 | u64 pn, nn; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 356 | VirtTarget *vtarget; |
mdr@sgi.com | 6dd727d | 2006-05-01 13:07:04 -0500 | [diff] [blame] | 357 | u32 roles = FC_RPORT_ROLE_UNKNOWN; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 358 | |
| 359 | if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) |
| 360 | return; |
| 361 | |
mdr@sgi.com | 6dd727d | 2006-05-01 13:07:04 -0500 | [diff] [blame] | 362 | roles |= FC_RPORT_ROLE_FCP_TARGET; |
| 363 | if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) |
| 364 | roles |= FC_RPORT_ROLE_FCP_INITIATOR; |
| 365 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 366 | /* scan list looking for a match */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 367 | list_for_each_entry(ri, &ioc->fc_rports, list) { |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 368 | pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| 369 | if (pn == rport_ids.port_name) { /* match */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 370 | list_move_tail(&ri->list, &ioc->fc_rports); |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 371 | new_ri = 0; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 372 | break; |
| 373 | } |
| 374 | } |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 375 | if (new_ri) { /* allocate one */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 376 | ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); |
| 377 | if (!ri) |
| 378 | return; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 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 | |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 385 | /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 386 | if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { |
| 387 | ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 388 | rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 389 | if (rport) { |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 390 | ri->rport = rport; |
| 391 | if (new_ri) /* may have been reset by user */ |
| 392 | rport->dev_loss_tmo = mptfc_dev_loss_tmo; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 393 | /* |
| 394 | * if already mapped, remap here. If not mapped, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 395 | * target_alloc will allocate vtarget and map, |
| 396 | * slave_alloc will fill in vdev from vtarget. |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 397 | */ |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 398 | if (ri->starget) { |
| 399 | vtarget = ri->starget->hostdata; |
| 400 | if (vtarget) { |
| 401 | vtarget->target_id = pg0->CurrentTargetID; |
| 402 | vtarget->bus_id = pg0->CurrentBus; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 403 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 404 | } |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 405 | *((struct mptfc_rport_info **)rport->dd_data) = ri; |
mdr@sgi.com | 6dd727d | 2006-05-01 13:07:04 -0500 | [diff] [blame] | 406 | /* scan will be scheduled once rport becomes a target */ |
| 407 | fc_remote_port_rolechg(rport,roles); |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 408 | |
| 409 | pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| 410 | nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 411 | dfcprintk ((MYIOC_s_INFO_FMT |
| 412 | "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 413 | "rport tid %d, tmo %d\n", |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 414 | ioc->name, |
Moore, Eric | 914c2d8 | 2006-03-14 09:19:36 -0700 | [diff] [blame] | 415 | ioc->sh->host_no, |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 416 | pg0->PortIdentifier, |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 417 | (unsigned long long)nn, |
| 418 | (unsigned long long)pn, |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 419 | pg0->CurrentTargetID, |
| 420 | ri->rport->scsi_target_id, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 421 | ri->rport->dev_loss_tmo)); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 422 | } else { |
| 423 | list_del(&ri->list); |
| 424 | kfree(ri); |
| 425 | ri = NULL; |
| 426 | } |
| 427 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | /* |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 431 | * OS entry point to allow for host driver to free allocated memory |
| 432 | * Called if no device present or device being unloaded |
| 433 | */ |
| 434 | static void |
| 435 | mptfc_target_destroy(struct scsi_target *starget) |
| 436 | { |
| 437 | struct fc_rport *rport; |
| 438 | struct mptfc_rport_info *ri; |
| 439 | |
| 440 | rport = starget_to_rport(starget); |
| 441 | if (rport) { |
| 442 | ri = *((struct mptfc_rport_info **)rport->dd_data); |
| 443 | if (ri) /* better be! */ |
| 444 | ri->starget = NULL; |
| 445 | } |
| 446 | if (starget->hostdata) |
| 447 | kfree(starget->hostdata); |
| 448 | starget->hostdata = NULL; |
| 449 | } |
| 450 | |
| 451 | /* |
| 452 | * OS entry point to allow host driver to alloc memory |
| 453 | * for each scsi target. Called once per device the bus scan. |
| 454 | * Return non-zero if allocation fails. |
| 455 | */ |
| 456 | static int |
| 457 | mptfc_target_alloc(struct scsi_target *starget) |
| 458 | { |
| 459 | VirtTarget *vtarget; |
| 460 | struct fc_rport *rport; |
| 461 | struct mptfc_rport_info *ri; |
| 462 | int rc; |
| 463 | |
| 464 | vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); |
| 465 | if (!vtarget) |
| 466 | return -ENOMEM; |
| 467 | starget->hostdata = vtarget; |
| 468 | |
| 469 | rc = -ENODEV; |
| 470 | rport = starget_to_rport(starget); |
| 471 | if (rport) { |
| 472 | ri = *((struct mptfc_rport_info **)rport->dd_data); |
| 473 | if (ri) { /* better be! */ |
| 474 | vtarget->target_id = ri->pg0.CurrentTargetID; |
| 475 | vtarget->bus_id = ri->pg0.CurrentBus; |
| 476 | ri->starget = starget; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 477 | rc = 0; |
| 478 | } |
| 479 | } |
| 480 | if (rc != 0) { |
| 481 | kfree(vtarget); |
| 482 | starget->hostdata = NULL; |
| 483 | } |
| 484 | |
| 485 | return rc; |
| 486 | } |
| 487 | |
| 488 | /* |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 489 | * OS entry point to allow host driver to alloc memory |
| 490 | * for each scsi device. Called once per device the bus scan. |
| 491 | * Return non-zero if allocation fails. |
| 492 | * Init memory once per LUN. |
| 493 | */ |
Adrian Bunk | 03fbcbc | 2006-01-25 02:00:52 +0100 | [diff] [blame] | 494 | static int |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 495 | mptfc_slave_alloc(struct scsi_device *sdev) |
| 496 | { |
| 497 | MPT_SCSI_HOST *hd; |
| 498 | VirtTarget *vtarget; |
| 499 | VirtDevice *vdev; |
| 500 | struct scsi_target *starget; |
| 501 | struct fc_rport *rport; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 502 | |
| 503 | |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 504 | starget = scsi_target(sdev); |
| 505 | rport = starget_to_rport(starget); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 506 | |
| 507 | if (!rport || fc_remote_port_chkready(rport)) |
| 508 | return -ENXIO; |
| 509 | |
| 510 | hd = (MPT_SCSI_HOST *)sdev->host->hostdata; |
| 511 | |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 512 | vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 513 | if (!vdev) { |
| 514 | printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", |
| 515 | hd->ioc->name, sizeof(VirtDevice)); |
| 516 | return -ENOMEM; |
| 517 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 518 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 519 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 520 | sdev->hostdata = vdev; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 521 | vtarget = starget->hostdata; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 522 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 523 | if (vtarget->num_luns == 0) { |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 524 | vtarget->ioc_id = hd->ioc->id; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 525 | vtarget->tflags = MPT_TARGET_FLAGS_Q_YES | |
| 526 | MPT_TARGET_FLAGS_VALID_INQUIRY; |
| 527 | hd->Targets[sdev->id] = vtarget; |
| 528 | } |
| 529 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 530 | vdev->vtarget = vtarget; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 531 | vdev->lun = sdev->lun; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 532 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 533 | vtarget->num_luns++; |
| 534 | |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 535 | |
Moore, Eric | 914c2d8 | 2006-03-14 09:19:36 -0700 | [diff] [blame] | 536 | #ifdef DMPT_DEBUG_FC |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 537 | { |
| 538 | u64 nn, pn; |
Moore, Eric | 914c2d8 | 2006-03-14 09:19:36 -0700 | [diff] [blame] | 539 | struct mptfc_rport_info *ri; |
| 540 | ri = *((struct mptfc_rport_info **)rport->dd_data); |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 541 | pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; |
| 542 | nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 543 | dfcprintk ((MYIOC_s_INFO_FMT |
| 544 | "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 545 | "CurrentTargetID %d, %x %llx %llx\n", |
Moore, Eric | 914c2d8 | 2006-03-14 09:19:36 -0700 | [diff] [blame] | 546 | hd->ioc->name, |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 547 | sdev->host->host_no, |
| 548 | vtarget->num_luns, |
| 549 | sdev->id, ri->pg0.CurrentTargetID, |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 550 | ri->pg0.PortIdentifier, |
| 551 | (unsigned long long)pn, |
| 552 | (unsigned long long)nn)); |
Moore, Eric | 914c2d8 | 2006-03-14 09:19:36 -0700 | [diff] [blame] | 553 | } |
| 554 | #endif |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 555 | |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | static int |
| 560 | mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) |
| 561 | { |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 562 | struct mptfc_rport_info *ri; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 563 | struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); |
| 564 | int err; |
| 565 | |
| 566 | err = fc_remote_port_chkready(rport); |
| 567 | if (unlikely(err)) { |
| 568 | SCpnt->result = err; |
| 569 | done(SCpnt); |
| 570 | return 0; |
| 571 | } |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 572 | |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 573 | /* dd_data is null until finished adding target */ |
| 574 | ri = *((struct mptfc_rport_info **)rport->dd_data); |
| 575 | if (unlikely(!ri)) { |
| 576 | dfcprintk ((MYIOC_s_INFO_FMT |
| 577 | "mptfc_qcmd.%d: %d:%d, dd_data is null.\n", |
| 578 | ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, |
| 579 | ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, |
| 580 | SCpnt->device->id,SCpnt->device->lun)); |
| 581 | SCpnt->result = DID_IMM_RETRY << 16; |
| 582 | done(SCpnt); |
| 583 | return 0; |
| 584 | } |
| 585 | |
| 586 | err = mptscsih_qcmd(SCpnt,done); |
| 587 | #ifdef DMPT_DEBUG_FC |
| 588 | if (unlikely(err)) { |
| 589 | dfcprintk ((MYIOC_s_INFO_FMT |
| 590 | "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero.\n", |
| 591 | ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, |
| 592 | ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, |
| 593 | SCpnt->device->id,SCpnt->device->lun)); |
| 594 | } |
| 595 | #endif |
| 596 | return err; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | static void |
| 600 | mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) |
| 601 | { |
| 602 | unsigned class = 0, cos = 0; |
| 603 | |
| 604 | /* don't know what to do as only one scsi (fc) host was allocated */ |
| 605 | if (portnum != 0) |
| 606 | return; |
| 607 | |
| 608 | class = ioc->fc_port_page0[portnum].SupportedServiceClass; |
| 609 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) |
| 610 | cos |= FC_COS_CLASS1; |
| 611 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) |
| 612 | cos |= FC_COS_CLASS2; |
| 613 | if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) |
| 614 | cos |= FC_COS_CLASS3; |
| 615 | |
| 616 | fc_host_node_name(ioc->sh) = |
| 617 | (u64)ioc->fc_port_page0[portnum].WWNN.High << 32 |
| 618 | | (u64)ioc->fc_port_page0[portnum].WWNN.Low; |
| 619 | |
| 620 | fc_host_port_name(ioc->sh) = |
| 621 | (u64)ioc->fc_port_page0[portnum].WWPN.High << 32 |
| 622 | | (u64)ioc->fc_port_page0[portnum].WWPN.Low; |
| 623 | |
| 624 | fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier; |
| 625 | |
| 626 | fc_host_supported_classes(ioc->sh) = cos; |
| 627 | |
| 628 | fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN; |
| 629 | } |
| 630 | |
| 631 | static void |
| 632 | mptfc_rescan_devices(void *arg) |
| 633 | { |
| 634 | MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; |
| 635 | int ii; |
| 636 | int work_to_do; |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 637 | u64 pn; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 638 | unsigned long flags; |
| 639 | struct mptfc_rport_info *ri; |
| 640 | |
| 641 | do { |
| 642 | /* start by tagging all ports as missing */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 643 | list_for_each_entry(ri, &ioc->fc_rports, list) { |
| 644 | if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { |
| 645 | ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; |
| 646 | } |
| 647 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 648 | |
| 649 | /* |
| 650 | * now rescan devices known to adapter, |
| 651 | * will reregister existing rports |
| 652 | */ |
| 653 | for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
| 654 | (void) mptbase_GetFcPortPage0(ioc, ii); |
| 655 | mptfc_init_host_attr(ioc,ii); /* refresh */ |
| 656 | mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); |
| 657 | } |
| 658 | |
| 659 | /* delete devices still missing */ |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 660 | list_for_each_entry(ri, &ioc->fc_rports, list) { |
| 661 | /* if newly missing, delete it */ |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 662 | if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 663 | |
| 664 | ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| |
| 665 | MPT_RPORT_INFO_FLAGS_MISSING); |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 666 | fc_remote_port_delete(ri->rport); /* won't sleep */ |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 667 | ri->rport = NULL; |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 668 | |
| 669 | pn = (u64)ri->pg0.WWPN.High << 32 | |
| 670 | (u64)ri->pg0.WWPN.Low; |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 671 | dfcprintk ((MYIOC_s_INFO_FMT |
| 672 | "mptfc_rescan.%d: %llx deleted\n", |
| 673 | ioc->name, |
| 674 | ioc->sh->host_no, |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 675 | (unsigned long long)pn)); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 676 | } |
| 677 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 678 | |
| 679 | /* |
| 680 | * allow multiple passes as target state |
| 681 | * might have changed during scan |
| 682 | */ |
| 683 | spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| 684 | if (ioc->fc_rescan_work_count > 2) /* only need one more */ |
| 685 | ioc->fc_rescan_work_count = 2; |
| 686 | work_to_do = --ioc->fc_rescan_work_count; |
| 687 | spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| 688 | } while (work_to_do); |
| 689 | } |
| 690 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 691 | static int |
| 692 | mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| 693 | { |
| 694 | struct Scsi_Host *sh; |
| 695 | MPT_SCSI_HOST *hd; |
| 696 | MPT_ADAPTER *ioc; |
| 697 | unsigned long flags; |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 698 | int ii; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 699 | int numSGE = 0; |
| 700 | int scale; |
| 701 | int ioc_cap; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 702 | int error=0; |
| 703 | int r; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 704 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 705 | if ((r = mpt_attach(pdev,id)) != 0) |
| 706 | return r; |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 707 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 708 | ioc = pci_get_drvdata(pdev); |
Moore, Eric Dean | d335cc3 | 2005-04-30 17:09:38 -0500 | [diff] [blame] | 709 | ioc->DoneCtx = mptfcDoneCtx; |
| 710 | ioc->TaskCtx = mptfcTaskCtx; |
| 711 | ioc->InternalCtx = mptfcInternalCtx; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 712 | |
| 713 | /* Added sanity check on readiness of the MPT adapter. |
| 714 | */ |
| 715 | if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { |
| 716 | printk(MYIOC_s_WARN_FMT |
| 717 | "Skipping because it's not operational!\n", |
| 718 | ioc->name); |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 719 | error = -ENODEV; |
| 720 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | if (!ioc->active) { |
| 724 | printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", |
| 725 | ioc->name); |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 726 | error = -ENODEV; |
| 727 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 728 | } |
| 729 | |
| 730 | /* Sanity check - ensure at least 1 port is INITIATOR capable |
| 731 | */ |
| 732 | ioc_cap = 0; |
| 733 | for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { |
| 734 | if (ioc->pfacts[ii].ProtocolFlags & |
| 735 | MPI_PORTFACTS_PROTOCOL_INITIATOR) |
| 736 | ioc_cap ++; |
| 737 | } |
| 738 | |
| 739 | if (!ioc_cap) { |
| 740 | printk(MYIOC_s_WARN_FMT |
| 741 | "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", |
| 742 | ioc->name, ioc); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 743 | return -ENODEV; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 744 | } |
| 745 | |
| 746 | sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); |
| 747 | |
| 748 | if (!sh) { |
| 749 | printk(MYIOC_s_WARN_FMT |
| 750 | "Unable to register controller with SCSI subsystem\n", |
| 751 | ioc->name); |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 752 | error = -1; |
| 753 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 754 | } |
| 755 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 756 | INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc); |
| 757 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 758 | spin_lock_irqsave(&ioc->FreeQlock, flags); |
| 759 | |
| 760 | /* Attach the SCSI Host to the IOC structure |
| 761 | */ |
| 762 | ioc->sh = sh; |
| 763 | |
| 764 | sh->io_port = 0; |
| 765 | sh->n_io_port = 0; |
| 766 | sh->irq = 0; |
| 767 | |
| 768 | /* set 16 byte cdb's */ |
| 769 | sh->max_cmd_len = 16; |
| 770 | |
| 771 | sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255; |
| 772 | |
| 773 | sh->max_lun = MPT_LAST_LUN + 1; |
| 774 | sh->max_channel = 0; |
| 775 | sh->this_id = ioc->pfacts[0].PortSCSIID; |
| 776 | |
| 777 | /* Required entry. |
| 778 | */ |
| 779 | sh->unique_id = ioc->id; |
| 780 | |
| 781 | /* Verify that we won't exceed the maximum |
| 782 | * number of chain buffers |
| 783 | * We can optimize: ZZ = req_sz/sizeof(SGE) |
| 784 | * For 32bit SGE's: |
| 785 | * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ |
| 786 | * + (req_sz - 64)/sizeof(SGE) |
| 787 | * A slightly different algorithm is required for |
| 788 | * 64bit SGEs. |
| 789 | */ |
| 790 | scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); |
| 791 | if (sizeof(dma_addr_t) == sizeof(u64)) { |
| 792 | numSGE = (scale - 1) * |
| 793 | (ioc->facts.MaxChainDepth-1) + scale + |
| 794 | (ioc->req_sz - 60) / (sizeof(dma_addr_t) + |
| 795 | sizeof(u32)); |
| 796 | } else { |
| 797 | numSGE = 1 + (scale - 1) * |
| 798 | (ioc->facts.MaxChainDepth-1) + scale + |
| 799 | (ioc->req_sz - 64) / (sizeof(dma_addr_t) + |
| 800 | sizeof(u32)); |
| 801 | } |
| 802 | |
| 803 | if (numSGE < sh->sg_tablesize) { |
| 804 | /* Reset this value */ |
| 805 | dprintk((MYIOC_s_INFO_FMT |
| 806 | "Resetting sg_tablesize to %d from %d\n", |
| 807 | ioc->name, numSGE, sh->sg_tablesize)); |
| 808 | sh->sg_tablesize = numSGE; |
| 809 | } |
| 810 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 811 | spin_unlock_irqrestore(&ioc->FreeQlock, flags); |
| 812 | |
| 813 | hd = (MPT_SCSI_HOST *) sh->hostdata; |
| 814 | hd->ioc = ioc; |
| 815 | |
| 816 | /* SCSI needs scsi_cmnd lookup table! |
| 817 | * (with size equal to req_depth*PtrSz!) |
| 818 | */ |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 819 | hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); |
| 820 | if (!hd->ScsiLookup) { |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 821 | error = -ENOMEM; |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 822 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 823 | } |
| 824 | |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 825 | dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n", |
| 826 | ioc->name, hd->ScsiLookup)); |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 827 | |
| 828 | /* Allocate memory for the device structures. |
| 829 | * A non-Null pointer at an offset |
| 830 | * indicates a device exists. |
| 831 | * max_id = 1 + maximum id (hosts.h) |
| 832 | */ |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 833 | hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC); |
| 834 | if (!hd->Targets) { |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 835 | error = -ENOMEM; |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 836 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 837 | } |
| 838 | |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 839 | dprintk((KERN_INFO " vdev @ %p\n", hd->Targets)); |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 840 | |
| 841 | /* Clear the TM flags |
| 842 | */ |
| 843 | hd->tmPending = 0; |
| 844 | hd->tmState = TM_STATE_NONE; |
| 845 | hd->resetPending = 0; |
| 846 | hd->abortSCpnt = NULL; |
| 847 | |
| 848 | /* Clear the pointer used to store |
| 849 | * single-threaded commands, i.e., those |
| 850 | * issued during a bus scan, dv and |
| 851 | * configuration pages. |
| 852 | */ |
| 853 | hd->cmdPtr = NULL; |
| 854 | |
| 855 | /* Initialize this SCSI Hosts' timers |
| 856 | * To use, set the timer expires field |
| 857 | * and add_timer |
| 858 | */ |
| 859 | init_timer(&hd->timer); |
| 860 | hd->timer.data = (unsigned long) hd; |
| 861 | hd->timer.function = mptscsih_timer_expired; |
| 862 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 863 | hd->mpt_pq_filter = mpt_pq_filter; |
| 864 | |
| 865 | ddvprintk((MYIOC_s_INFO_FMT |
| 866 | "mpt_pq_filter %x\n", |
| 867 | ioc->name, |
| 868 | mpt_pq_filter)); |
| 869 | |
| 870 | init_waitqueue_head(&hd->scandv_waitq); |
| 871 | hd->scandv_wait_done = 0; |
| 872 | hd->last_queue_full = 0; |
| 873 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 874 | sh->transportt = mptfc_transport_template; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 875 | error = scsi_add_host (sh, &ioc->pcidev->dev); |
| 876 | if(error) { |
| 877 | dprintk((KERN_ERR MYNAM |
| 878 | "scsi_add_host failed\n")); |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 879 | goto out_mptfc_probe; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 880 | } |
| 881 | |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 882 | /* initialize workqueue */ |
| 883 | |
| 884 | snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", |
| 885 | sh->host_no); |
| 886 | ioc->fc_rescan_work_q = |
| 887 | create_singlethread_workqueue(ioc->fc_rescan_work_q_name); |
| 888 | if (!ioc->fc_rescan_work_q) |
| 889 | goto out_mptfc_probe; |
| 890 | |
| 891 | /* |
| 892 | * scan for rports - |
| 893 | * by doing it via the workqueue, some locking is eliminated |
| 894 | */ |
| 895 | |
| 896 | ioc->fc_rescan_work_count = 1; |
| 897 | queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); |
| 898 | flush_workqueue(ioc->fc_rescan_work_q); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 899 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 900 | return 0; |
| 901 | |
Moore, Eric Dean | 7acec1e | 2005-11-16 18:54:17 -0700 | [diff] [blame] | 902 | out_mptfc_probe: |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 903 | |
| 904 | mptscsih_remove(pdev); |
| 905 | return error; |
| 906 | } |
| 907 | |
| 908 | static struct pci_driver mptfc_driver = { |
| 909 | .name = "mptfc", |
| 910 | .id_table = mptfc_pci_table, |
| 911 | .probe = mptfc_probe, |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 912 | .remove = __devexit_p(mptfc_remove), |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 913 | .shutdown = mptscsih_shutdown, |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 914 | #ifdef CONFIG_PM |
| 915 | .suspend = mptscsih_suspend, |
| 916 | .resume = mptscsih_resume, |
| 917 | #endif |
| 918 | }; |
| 919 | |
| 920 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 921 | /** |
| 922 | * mptfc_init - Register MPT adapter(s) as SCSI host(s) with |
| 923 | * linux scsi mid-layer. |
| 924 | * |
| 925 | * Returns 0 for success, non-zero for failure. |
| 926 | */ |
| 927 | static int __init |
| 928 | mptfc_init(void) |
| 929 | { |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 930 | int error; |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 931 | |
| 932 | show_mptmod_ver(my_NAME, my_VERSION); |
| 933 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 934 | /* sanity check module parameter */ |
| 935 | if (mptfc_dev_loss_tmo == 0) |
| 936 | mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; |
| 937 | |
| 938 | mptfc_transport_template = |
| 939 | fc_attach_transport(&mptfc_transport_functions); |
| 940 | |
| 941 | if (!mptfc_transport_template) |
| 942 | return -ENODEV; |
| 943 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 944 | mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); |
| 945 | mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); |
| 946 | mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); |
| 947 | |
| 948 | if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) { |
Moore, Eric | 3a892be | 2006-03-14 09:14:03 -0700 | [diff] [blame] | 949 | devtverboseprintk((KERN_INFO MYNAM |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 950 | ": Registered for IOC event notifications\n")); |
| 951 | } |
| 952 | |
| 953 | if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) { |
| 954 | dprintk((KERN_INFO MYNAM |
| 955 | ": Registered for IOC reset notifications\n")); |
| 956 | } |
| 957 | |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 958 | error = pci_register_driver(&mptfc_driver); |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 959 | if (error) |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 960 | fc_release_transport(mptfc_transport_template); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 961 | |
| 962 | return error; |
| 963 | } |
| 964 | |
| 965 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 966 | /** |
| 967 | * mptfc_remove - Removed fc infrastructure for devices |
| 968 | * @pdev: Pointer to pci_dev structure |
| 969 | * |
| 970 | */ |
Michael Reed | 3bc7bf1 | 2006-01-25 18:05:18 -0700 | [diff] [blame] | 971 | static void __devexit |
| 972 | mptfc_remove(struct pci_dev *pdev) |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 973 | { |
Moore, Eric | 65207fe | 2006-04-21 16:14:35 -0600 | [diff] [blame] | 974 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); |
| 975 | struct mptfc_rport_info *p, *n; |
| 976 | struct workqueue_struct *work_q; |
| 977 | unsigned long flags; |
| 978 | |
| 979 | /* destroy workqueue */ |
| 980 | if ((work_q=ioc->fc_rescan_work_q)) { |
| 981 | spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); |
| 982 | ioc->fc_rescan_work_q = NULL; |
| 983 | spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); |
| 984 | destroy_workqueue(work_q); |
| 985 | } |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 986 | |
| 987 | fc_remove_host(ioc->sh); |
| 988 | |
| 989 | list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { |
| 990 | list_del(&p->list); |
| 991 | kfree(p); |
| 992 | } |
| 993 | |
| 994 | mptscsih_remove(pdev); |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 998 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 999 | /** |
| 1000 | * mptfc_exit - Unregisters MPT adapter(s) |
| 1001 | * |
| 1002 | */ |
| 1003 | static void __exit |
| 1004 | mptfc_exit(void) |
| 1005 | { |
| 1006 | pci_unregister_driver(&mptfc_driver); |
Michael Reed | 05e8ec1 | 2006-01-13 14:31:54 -0600 | [diff] [blame] | 1007 | fc_release_transport(mptfc_transport_template); |
| 1008 | |
Moore, Eric Dean | 2496af3 | 2005-04-22 18:02:41 -0400 | [diff] [blame] | 1009 | mpt_reset_deregister(mptfcDoneCtx); |
| 1010 | dprintk((KERN_INFO MYNAM |
| 1011 | ": Deregistered for IOC reset notifications\n")); |
| 1012 | |
| 1013 | mpt_event_deregister(mptfcDoneCtx); |
| 1014 | dprintk((KERN_INFO MYNAM |
| 1015 | ": Deregistered for IOC event notifications\n")); |
| 1016 | |
| 1017 | mpt_deregister(mptfcInternalCtx); |
| 1018 | mpt_deregister(mptfcTaskCtx); |
| 1019 | mpt_deregister(mptfcDoneCtx); |
| 1020 | } |
| 1021 | |
| 1022 | module_init(mptfc_init); |
| 1023 | module_exit(mptfc_exit); |