Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/mfi/mfi_pci.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause 3 * 4 * Copyright (c) 2006 IronPort Systems 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 /*- 29 * Copyright (c) 2007 LSI Corp. 30 * Copyright (c) 2007 Rajesh Prabhakaran. 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 42 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52 * SUCH DAMAGE. 53 */ 54 55 #include <sys/cdefs.h> 56 __FBSDID("$FreeBSD: releng/12.0/sys/dev/mfi/mfi_pci.c 338949 2018-09-26 17:12:30Z imp $"); 57 58 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */ 59 60 #include "opt_mfi.h" 61 62 #include <sys/param.h> 63 #include <sys/systm.h> 64 #include <sys/kernel.h> 65 #include <sys/selinfo.h> 66 #include <sys/module.h> 67 #include <sys/bus.h> 68 #include <sys/conf.h> 69 #include <sys/bio.h> 70 #include <sys/malloc.h> 71 #include <sys/sysctl.h> 72 #include <sys/uio.h> 73 74 #include <machine/bus.h> 75 #include <machine/resource.h> 76 #include <sys/rman.h> 77 78 #include <dev/pci/pcireg.h> 79 #include <dev/pci/pcivar.h> 80 81 #include <dev/mfi/mfireg.h> 82 #include <dev/mfi/mfi_ioctl.h> 83 #include <dev/mfi/mfivar.h> 84 85 static int mfi_pci_probe(device_t); 86 static int mfi_pci_attach(device_t); 87 static int mfi_pci_detach(device_t); 88 static int mfi_pci_suspend(device_t); 89 static int mfi_pci_resume(device_t); 90 static void mfi_pci_free(struct mfi_softc *); 91 92 static device_method_t mfi_methods[] = { 93 DEVMETHOD(device_probe, mfi_pci_probe), 94 DEVMETHOD(device_attach, mfi_pci_attach), 95 DEVMETHOD(device_detach, mfi_pci_detach), 96 DEVMETHOD(device_suspend, mfi_pci_suspend), 97 DEVMETHOD(device_resume, mfi_pci_resume), 98 99 DEVMETHOD_END 100 }; 101 102 static driver_t mfi_pci_driver = { 103 "mfi", 104 mfi_methods, 105 sizeof(struct mfi_softc) 106 }; 107 108 static devclass_t mfi_devclass; 109 110 static int mfi_msi = 1; 111 SYSCTL_INT(_hw_mfi, OID_AUTO, msi, CTLFLAG_RDTUN, &mfi_msi, 0, 112 "Enable use of MSI interrupts"); 113 114 static int mfi_mrsas_enable; 115 SYSCTL_INT(_hw_mfi, OID_AUTO, mrsas_enable, CTLFLAG_RDTUN, &mfi_mrsas_enable, 116 0, "Allow mrasas to take newer cards"); 117 118 struct mfi_ident { 119 uint16_t vendor; 120 uint16_t device; 121 uint16_t subvendor; 122 uint16_t subdevice; 123 int flags; 124 const char *desc; 125 } mfi_identifiers[] = { 126 {0x1000, 0x005b, 0x1028, 0x1f2d, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H810 Adapter"}, 127 {0x1000, 0x005b, 0x1028, 0x1f30, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Embedded"}, 128 {0x1000, 0x005b, 0x1028, 0x1f31, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Adapter"}, 129 {0x1000, 0x005b, 0x1028, 0x1f33, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (blades)"}, 130 {0x1000, 0x005b, 0x1028, 0x1f34, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (monolithics)"}, 131 {0x1000, 0x005b, 0x1028, 0x1f35, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Adapter"}, 132 {0x1000, 0x005b, 0x1028, 0x1f37, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (blades)"}, 133 {0x1000, 0x005b, 0x1028, 0x1f38, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (monolithics)"}, 134 {0x1000, 0x005b, 0x8086, 0x9265, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25DB080"}, 135 {0x1000, 0x005b, 0x8086, 0x9285, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25NB008"}, 136 {0x1000, 0x005b, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "ThunderBolt"}, 137 {0x1000, 0x005d, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_INVADER, "Invader"}, 138 {0x1000, 0x005f, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_FURY, "Fury"}, 139 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"}, 140 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 141 {0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 142 {0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 143 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 144 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"}, 145 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"}, 146 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"}, 147 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"}, 148 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"}, 149 {0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"}, 150 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"}, 151 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"}, 152 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 153 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 154 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */ 155 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */ 156 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"}, 157 {0, 0, 0, 0, 0, NULL} 158 }; 159 160 DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, 0, 0); 161 MODULE_PNP_INFO("U16:vendor;U16:device;U16:subvendor;U16:subdevice", pci, mfi, 162 mfi_identifiers, nitems(mfi_identifiers) - 1); 163 MODULE_VERSION(mfi, 1); 164 165 static struct mfi_ident * 166 mfi_find_ident(device_t dev) 167 { 168 struct mfi_ident *m; 169 170 for (m = mfi_identifiers; m->vendor != 0; m++) { 171 if ((m->vendor == pci_get_vendor(dev)) && 172 (m->device == pci_get_device(dev)) && 173 ((m->subvendor == pci_get_subvendor(dev)) || 174 (m->subvendor == 0xffff)) && 175 ((m->subdevice == pci_get_subdevice(dev)) || 176 (m->subdevice == 0xffff))) 177 return (m); 178 } 179 180 return (NULL); 181 } 182 183 static int 184 mfi_pci_probe(device_t dev) 185 { 186 struct mfi_ident *id; 187 188 if ((id = mfi_find_ident(dev)) != NULL) { 189 device_set_desc(dev, id->desc); 190 191 /* give priority to mrsas if tunable set */ 192 if ((id->flags & MFI_FLAGS_MRSAS) && mfi_mrsas_enable) 193 return (BUS_PROBE_LOW_PRIORITY); 194 else 195 return (BUS_PROBE_DEFAULT); 196 } 197 return (ENXIO); 198 } 199 200 static int 201 mfi_pci_attach(device_t dev) 202 { 203 struct mfi_softc *sc; 204 struct mfi_ident *m; 205 int count, error; 206 207 sc = device_get_softc(dev); 208 bzero(sc, sizeof(*sc)); 209 sc->mfi_dev = dev; 210 m = mfi_find_ident(dev); 211 sc->mfi_flags = m->flags; 212 213 /* Ensure busmastering is enabled */ 214 pci_enable_busmaster(dev); 215 216 /* Allocate PCI registers */ 217 if ((sc->mfi_flags & MFI_FLAGS_1064R) || 218 (sc->mfi_flags & MFI_FLAGS_1078)) { 219 /* 1068/1078: Memory mapped BAR is at offset 0x10 */ 220 sc->mfi_regs_rid = PCIR_BAR(0); 221 } 222 else if ((sc->mfi_flags & MFI_FLAGS_GEN2) || 223 (sc->mfi_flags & MFI_FLAGS_SKINNY) || 224 (sc->mfi_flags & MFI_FLAGS_TBOLT)) { 225 /* Gen2/Skinny: Memory mapped BAR is at offset 0x14 */ 226 sc->mfi_regs_rid = PCIR_BAR(1); 227 } 228 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev, 229 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) { 230 device_printf(dev, "Cannot allocate PCI registers\n"); 231 return (ENXIO); 232 } 233 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource); 234 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource); 235 236 error = ENOMEM; 237 238 /* Allocate parent DMA tag */ 239 if (bus_dma_tag_create( bus_get_dma_tag(dev), /* PCI parent */ 240 1, 0, /* algnmnt, boundary */ 241 BUS_SPACE_MAXADDR, /* lowaddr */ 242 BUS_SPACE_MAXADDR, /* highaddr */ 243 NULL, NULL, /* filter, filterarg */ 244 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 245 BUS_SPACE_UNRESTRICTED, /* nsegments */ 246 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 247 0, /* flags */ 248 NULL, NULL, /* lockfunc, lockarg */ 249 &sc->mfi_parent_dmat)) { 250 device_printf(dev, "Cannot allocate parent DMA tag\n"); 251 goto out; 252 } 253 254 /* Allocate IRQ resource. */ 255 sc->mfi_irq_rid = 0; 256 count = 1; 257 if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) { 258 device_printf(sc->mfi_dev, "Using MSI\n"); 259 sc->mfi_irq_rid = 1; 260 } 261 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 262 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 263 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 264 error = EINVAL; 265 goto out; 266 } 267 268 error = mfi_attach(sc); 269 out: 270 if (error) { 271 mfi_free(sc); 272 mfi_pci_free(sc); 273 } 274 275 return (error); 276 } 277 278 static int 279 mfi_pci_detach(device_t dev) 280 { 281 struct mfi_softc *sc; 282 int error, devcount, i; 283 device_t *devlist; 284 285 sc = device_get_softc(dev); 286 287 sx_xlock(&sc->mfi_config_lock); 288 mtx_lock(&sc->mfi_io_lock); 289 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) { 290 mtx_unlock(&sc->mfi_io_lock); 291 sx_xunlock(&sc->mfi_config_lock); 292 return (EBUSY); 293 } 294 sc->mfi_detaching = 1; 295 mtx_unlock(&sc->mfi_io_lock); 296 297 if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) { 298 sx_xunlock(&sc->mfi_config_lock); 299 return error; 300 } 301 for (i = 0; i < devcount; i++) 302 device_delete_child(sc->mfi_dev, devlist[i]); 303 free(devlist, M_TEMP); 304 sx_xunlock(&sc->mfi_config_lock); 305 306 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh); 307 308 mfi_shutdown(sc); 309 mfi_free(sc); 310 mfi_pci_free(sc); 311 return (0); 312 } 313 314 static void 315 mfi_pci_free(struct mfi_softc *sc) 316 { 317 318 if (sc->mfi_regs_resource != NULL) { 319 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY, 320 sc->mfi_regs_rid, sc->mfi_regs_resource); 321 } 322 if (sc->mfi_irq_rid != 0) 323 pci_release_msi(sc->mfi_dev); 324 325 return; 326 } 327 328 static int 329 mfi_pci_suspend(device_t dev) 330 { 331 332 return (EINVAL); 333 } 334 335 static int 336 mfi_pci_resume(device_t dev) 337 { 338 339 return (EINVAL); 340 }
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