1 /*- 2 * Copyright (c) 2006 IronPort Systems 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 /*- 27 * Copyright (c) 2007 LSI Corp. 28 * Copyright (c) 2007 Rajesh Prabhakaran. 29 * All rights reserved. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 1. Redistributions of source code must retain the above copyright 35 * notice, this list of conditions and the following disclaimer. 36 * 2. Redistributions in binary form must reproduce the above copyright 37 * notice, this list of conditions and the following disclaimer in the 38 * documentation and/or other materials provided with the distribution. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 */ 52 /*- 53 * Redistribution and use in source and binary forms, with or without 54 * modification, are permitted provided that the following conditions 55 * are met: 56 * 57 * Copyright 1994-2009 The FreeBSD Project. 58 * All rights reserved. 59 * 60 * 1. Redistributions of source code must retain the above copyright 61 * notice, this list of conditions and the following disclaimer. 62 * 2. Redistributions in binary form must reproduce the above copyright 63 * notice, this list of conditions and the following disclaimer in the 64 * documentation and/or other materials provided with the distribution. 65 * 66 * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND 67 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 68 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 69 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR 70 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 71 * EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 72 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 73 * PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY 74 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 75 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 76 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 77 * 78 * The views and conclusions contained in the software and documentation 79 * are those of the authors and should not be interpreted as representing 80 * official policies,either expressed or implied, of the FreeBSD Project. 81 * 82 * $FreeBSD: src/sys/dev/mfi/mfi_pci.c,v 1.16 2010/03/02 17:34:11 kib Exp $ 83 */ 84 85 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */ 86 87 #include "opt_mfi.h" 88 89 #include <sys/param.h> 90 #include <sys/systm.h> 91 #include <sys/kernel.h> 92 #include <sys/module.h> 93 #include <sys/bus.h> 94 #include <sys/conf.h> 95 #include <sys/buf2.h> 96 #include <sys/malloc.h> 97 #include <sys/uio.h> 98 #include <sys/eventhandler.h> 99 100 #include <sys/rman.h> 101 102 #include <bus/pci/pcireg.h> 103 #include <bus/pci/pcivar.h> 104 105 #include <dev/raid/mfi/mfireg.h> 106 #include <dev/raid/mfi/mfi_ioctl.h> 107 #include <dev/raid/mfi/mfivar.h> 108 109 static int mfi_pci_probe(device_t); 110 static int mfi_pci_attach(device_t); 111 static int mfi_pci_detach(device_t); 112 static int mfi_pci_suspend(device_t); 113 static int mfi_pci_resume(device_t); 114 static void mfi_pci_free(struct mfi_softc *); 115 116 static device_method_t mfi_methods[] = { 117 DEVMETHOD(device_probe, mfi_pci_probe), 118 DEVMETHOD(device_attach, mfi_pci_attach), 119 DEVMETHOD(device_detach, mfi_pci_detach), 120 DEVMETHOD(device_suspend, mfi_pci_suspend), 121 DEVMETHOD(device_resume, mfi_pci_resume), 122 DEVMETHOD(bus_print_child, bus_generic_print_child), 123 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 124 { 0, 0 } 125 }; 126 127 static driver_t mfi_pci_driver = { 128 "mfi", 129 mfi_methods, 130 sizeof(struct mfi_softc) 131 }; 132 133 static devclass_t mfi_devclass; 134 DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, NULL, NULL); 135 MODULE_VERSION(mfi, 1); 136 137 struct mfi_ident { 138 uint16_t vendor; 139 uint16_t device; 140 uint16_t subvendor; 141 uint16_t subdevice; 142 int flags; 143 const char *desc; 144 } mfi_identifiers[] = { 145 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"}, 146 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 147 {0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 148 {0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 149 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 150 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"}, 151 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"}, 152 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"}, 153 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"}, 154 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"}, 155 {0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"}, 156 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"}, 157 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"}, 158 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 159 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 160 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */ 161 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */ 162 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"}, 163 {0, 0, 0, 0, 0, NULL} 164 }; 165 166 static struct mfi_ident * 167 mfi_find_ident(device_t dev) 168 { 169 struct mfi_ident *m; 170 171 for (m = mfi_identifiers; m->vendor != 0; m++) { 172 if ((m->vendor == pci_get_vendor(dev)) && 173 (m->device == pci_get_device(dev)) && 174 ((m->subvendor == pci_get_subvendor(dev)) || 175 (m->subvendor == 0xffff)) && 176 ((m->subdevice == pci_get_subdevice(dev)) || 177 (m->subdevice == 0xffff))) 178 return (m); 179 } 180 181 return (NULL); 182 } 183 184 static int 185 mfi_pci_probe(device_t dev) 186 { 187 struct mfi_ident *id; 188 189 if ((id = mfi_find_ident(dev)) != NULL) { 190 device_set_desc(dev, id->desc); 191 return (BUS_PROBE_DEFAULT); 192 } 193 return (ENXIO); 194 } 195 196 static int 197 mfi_pci_attach(device_t dev) 198 { 199 struct mfi_softc *sc; 200 struct mfi_ident *m; 201 uint32_t command; 202 int error; 203 204 sc = device_get_softc(dev); 205 bzero(sc, sizeof(*sc)); 206 sc->mfi_dev = dev; 207 m = mfi_find_ident(dev); 208 sc->mfi_flags = m->flags; 209 210 /* Verify that the adapter can be set up in PCI space */ 211 command = pci_read_config(dev, PCIR_COMMAND, 2); 212 command |= PCIM_CMD_BUSMASTEREN; 213 pci_write_config(dev, PCIR_COMMAND, command, 2); 214 command = pci_read_config(dev, PCIR_COMMAND, 2); 215 if ((command & PCIM_CMD_BUSMASTEREN) == 0) { 216 device_printf(dev, "Can't enable PCI busmaster\n"); 217 return (ENXIO); 218 } 219 if ((command & PCIM_CMD_MEMEN) == 0) { 220 device_printf(dev, "PCI memory window not available\n"); 221 return (ENXIO); 222 } 223 224 /* Allocate PCI registers */ 225 if ((sc->mfi_flags & MFI_FLAGS_1064R) || 226 (sc->mfi_flags & MFI_FLAGS_1078)) { 227 /* 1068/1078: Memory mapped BAR is at offset 0x10 */ 228 sc->mfi_regs_rid = PCIR_BAR(0); 229 } else if ((sc->mfi_flags & MFI_FLAGS_GEN2) || 230 (sc->mfi_flags & MFI_FLAGS_SKINNY)) { 231 /* GEN2/Skinny: Memory mapped BAR is at offset 0x14 */ 232 sc->mfi_regs_rid = PCIR_BAR(1); 233 } 234 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev, 235 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) { 236 device_printf(dev, "Cannot allocate PCI registers\n"); 237 return (ENXIO); 238 } 239 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource); 240 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource); 241 242 error = ENOMEM; 243 244 /* Allocate parent DMA tag */ 245 if (bus_dma_tag_create( NULL, /* parent */ 246 1, 0, /* algnmnt, boundary */ 247 BUS_SPACE_MAXADDR, /* lowaddr */ 248 BUS_SPACE_MAXADDR, /* highaddr */ 249 NULL, NULL, /* filter, filterarg */ 250 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 251 BUS_SPACE_UNRESTRICTED, /* nsegments */ 252 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 253 0, /* flags */ 254 &sc->mfi_parent_dmat)) { 255 device_printf(dev, "Cannot allocate parent DMA tag\n"); 256 goto out; 257 } 258 259 error = mfi_attach(sc); 260 out: 261 if (error) { 262 mfi_free(sc); 263 mfi_pci_free(sc); 264 } 265 266 return (error); 267 } 268 269 static int 270 mfi_pci_detach(device_t dev) 271 { 272 struct mfi_softc *sc; 273 struct mfi_disk *ld; 274 struct mfi_system_pd *syspd = NULL; 275 int error; 276 277 sc = device_get_softc(dev); 278 279 lockmgr(&sc->mfi_config_lock, LK_EXCLUSIVE); 280 lockmgr(&sc->mfi_io_lock, LK_EXCLUSIVE); 281 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) { 282 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 283 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 284 return (EBUSY); 285 } 286 sc->mfi_detaching = 1; 287 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 288 289 while ((ld = TAILQ_FIRST(&sc->mfi_ld_tqh)) != NULL) { 290 if ((error = device_delete_child(dev, ld->ld_dev)) != 0) { 291 sc->mfi_detaching = 0; 292 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 293 return (error); 294 } 295 } 296 while ((syspd = TAILQ_FIRST(&sc->mfi_syspd_tqh)) != NULL) { 297 if ((error = device_delete_child(dev,syspd->pd_dev)) != 0) { 298 sc->mfi_detaching = 0; 299 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 300 return (error); 301 } 302 } 303 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 304 305 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh); 306 307 mfi_shutdown(sc); 308 mfi_free(sc); 309 mfi_pci_free(sc); 310 return (0); 311 } 312 313 static void 314 mfi_pci_free(struct mfi_softc *sc) 315 { 316 317 if (sc->mfi_regs_resource != NULL) { 318 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY, 319 sc->mfi_regs_rid, sc->mfi_regs_resource); 320 } 321 322 return; 323 } 324 325 static int 326 mfi_pci_suspend(device_t dev) 327 { 328 329 return (EINVAL); 330 } 331 332 static int 333 mfi_pci_resume(device_t dev) 334 { 335 336 return (EINVAL); 337 } 338