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 * $FreeBSD: src/sys/dev/mfi/mfi_pci.c,v 1.16 2010/03/02 17:34:11 kib Exp $ 53 * FreeBSD projects/head_mfi/ r232888 54 */ 55 56 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */ 57 58 #include "opt_mfi.h" 59 60 #include <sys/param.h> 61 #include <sys/systm.h> 62 #include <sys/kernel.h> 63 #include <sys/module.h> 64 #include <sys/bus.h> 65 #include <sys/conf.h> 66 #include <sys/buf2.h> 67 #include <sys/malloc.h> 68 #include <sys/uio.h> 69 #include <sys/eventhandler.h> 70 #include <sys/rman.h> 71 72 #include <bus/pci/pcireg.h> 73 #include <bus/pci/pcivar.h> 74 75 #include <dev/raid/mfi/mfireg.h> 76 #include <dev/raid/mfi/mfi_ioctl.h> 77 #include <dev/raid/mfi/mfivar.h> 78 79 static int mfi_pci_probe(device_t); 80 static int mfi_pci_attach(device_t); 81 static int mfi_pci_detach(device_t); 82 static int mfi_pci_suspend(device_t); 83 static int mfi_pci_resume(device_t); 84 static void mfi_pci_free(struct mfi_softc *); 85 86 static device_method_t mfi_methods[] = { 87 DEVMETHOD(device_probe, mfi_pci_probe), 88 DEVMETHOD(device_attach, mfi_pci_attach), 89 DEVMETHOD(device_detach, mfi_pci_detach), 90 DEVMETHOD(device_suspend, mfi_pci_suspend), 91 DEVMETHOD(device_resume, mfi_pci_resume), 92 DEVMETHOD(bus_print_child, bus_generic_print_child), 93 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 94 { 0, 0 } 95 }; 96 97 static driver_t mfi_pci_driver = { 98 "mfi", 99 mfi_methods, 100 sizeof(struct mfi_softc) 101 }; 102 103 static devclass_t mfi_devclass; 104 DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, NULL, NULL); 105 MODULE_VERSION(mfi, 1); 106 107 static int mfi_msi_enable = 1; 108 TUNABLE_INT("hw.mfi.msi.enable", &mfi_msi_enable); 109 110 struct mfi_ident { 111 uint16_t vendor; 112 uint16_t device; 113 uint16_t subvendor; 114 uint16_t subdevice; 115 int flags; 116 const char *desc; 117 } mfi_identifiers[] = { 118 {0x1000, 0x005b, 0x1028, 0x1f2d, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H810 Adapter"}, 119 {0x1000, 0x005b, 0x1028, 0x1f30, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Embedded"}, 120 {0x1000, 0x005b, 0x1028, 0x1f31, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Adapter"}, 121 {0x1000, 0x005b, 0x1028, 0x1f33, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Mini (blades)"}, 122 {0x1000, 0x005b, 0x1028, 0x1f34, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Mini (monolithics)"}, 123 {0x1000, 0x005b, 0x1028, 0x1f35, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Adapter"}, 124 {0x1000, 0x005b, 0x1028, 0x1f37, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Mini (blades)"}, 125 {0x1000, 0x005b, 0x1028, 0x1f38, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Mini (monolithics)"}, 126 {0x1000, 0x005b, 0x8086, 0x9265, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Intel (R) RAID Controller RS25DB080"}, 127 {0x1000, 0x005b, 0x8086, 0x9285, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Intel (R) RAID Controller RS25NB008"}, 128 {0x1000, 0x005b, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "ThunderBolt"}, 129 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"}, 130 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 131 {0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 132 {0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"}, 133 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 134 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"}, 135 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"}, 136 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"}, 137 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"}, 138 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"}, 139 {0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"}, 140 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"}, 141 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"}, 142 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 143 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 144 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */ 145 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */ 146 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"}, 147 {0, 0, 0, 0, 0, NULL} 148 }; 149 150 static struct mfi_ident * 151 mfi_find_ident(device_t dev) 152 { 153 struct mfi_ident *m; 154 155 for (m = mfi_identifiers; m->vendor != 0; m++) { 156 if ((m->vendor == pci_get_vendor(dev)) && 157 (m->device == pci_get_device(dev)) && 158 ((m->subvendor == pci_get_subvendor(dev)) || 159 (m->subvendor == 0xffff)) && 160 ((m->subdevice == pci_get_subdevice(dev)) || 161 (m->subdevice == 0xffff))) 162 return (m); 163 } 164 165 return (NULL); 166 } 167 168 static int 169 mfi_pci_probe(device_t dev) 170 { 171 struct mfi_ident *id; 172 173 if ((id = mfi_find_ident(dev)) != NULL) { 174 device_set_desc(dev, id->desc); 175 return (BUS_PROBE_DEFAULT); 176 } 177 return (ENXIO); 178 } 179 180 static int 181 mfi_pci_attach(device_t dev) 182 { 183 struct mfi_softc *sc; 184 struct mfi_ident *m; 185 uint32_t command; 186 int error; 187 u_int irq_flags; 188 189 sc = device_get_softc(dev); 190 bzero(sc, sizeof(*sc)); 191 sc->mfi_dev = dev; 192 m = mfi_find_ident(dev); 193 sc->mfi_flags = m->flags; 194 195 /* Verify that the adapter can be set up in PCI space */ 196 command = pci_read_config(dev, PCIR_COMMAND, 2); 197 command |= PCIM_CMD_BUSMASTEREN; 198 pci_write_config(dev, PCIR_COMMAND, command, 2); 199 command = pci_read_config(dev, PCIR_COMMAND, 2); 200 if ((command & PCIM_CMD_BUSMASTEREN) == 0) { 201 device_printf(dev, "Can't enable PCI busmaster\n"); 202 return (ENXIO); 203 } 204 if ((command & PCIM_CMD_MEMEN) == 0) { 205 device_printf(dev, "PCI memory window not available\n"); 206 return (ENXIO); 207 } 208 209 /* Allocate PCI registers */ 210 if ((sc->mfi_flags & MFI_FLAGS_1064R) || 211 (sc->mfi_flags & MFI_FLAGS_1078)) { 212 /* 1068/1078: Memory mapped BAR is at offset 0x10 */ 213 sc->mfi_regs_rid = PCIR_BAR(0); 214 } else if ((sc->mfi_flags & MFI_FLAGS_GEN2) || 215 (sc->mfi_flags & MFI_FLAGS_SKINNY) || 216 (sc->mfi_flags & MFI_FLAGS_TBOLT)) { 217 /* GEN2/Skinny: Memory mapped BAR is at offset 0x14 */ 218 sc->mfi_regs_rid = PCIR_BAR(1); 219 } 220 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev, 221 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) { 222 device_printf(dev, "Cannot allocate PCI registers\n"); 223 return (ENXIO); 224 } 225 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource); 226 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource); 227 228 error = ENOMEM; 229 230 /* Allocate parent DMA tag */ 231 if (bus_dma_tag_create( NULL, /* parent */ 232 1, 0, /* algnmnt, boundary */ 233 BUS_SPACE_MAXADDR, /* lowaddr */ 234 BUS_SPACE_MAXADDR, /* highaddr */ 235 NULL, NULL, /* filter, filterarg */ 236 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 237 BUS_SPACE_UNRESTRICTED, /* nsegments */ 238 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 239 0, /* flags */ 240 &sc->mfi_parent_dmat)) { 241 device_printf(dev, "Cannot allocate parent DMA tag\n"); 242 goto out; 243 } 244 245 /* Allocate IRQ resource. */ 246 sc->mfi_irq_rid = 0; 247 sc->mfi_irq_type = pci_alloc_1intr(sc->mfi_dev, mfi_msi_enable, 248 &sc->mfi_irq_rid, &irq_flags); 249 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 250 &sc->mfi_irq_rid, irq_flags)) == NULL) { 251 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 252 return (EINVAL); 253 } 254 255 error = mfi_attach(sc); 256 out: 257 if (error) { 258 mfi_free(sc); 259 mfi_pci_free(sc); 260 } 261 262 return (error); 263 } 264 265 static int 266 mfi_pci_detach(device_t dev) 267 { 268 struct mfi_softc *sc; 269 device_t *devlist; 270 int error, devcount, i; 271 272 sc = device_get_softc(dev); 273 274 lockmgr(&sc->mfi_config_lock, LK_EXCLUSIVE); 275 lockmgr(&sc->mfi_io_lock, LK_EXCLUSIVE); 276 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) { 277 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 278 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 279 return (EBUSY); 280 } 281 sc->mfi_detaching = 1; 282 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 283 284 if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) { 285 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 286 return error; 287 } 288 for (i = 0; i < devcount; i++) 289 device_delete_child(sc->mfi_dev, devlist[i]); 290 kfree(devlist, M_TEMP); 291 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 292 293 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh); 294 295 mfi_shutdown(sc); 296 mfi_free(sc); 297 mfi_pci_free(sc); 298 return (0); 299 } 300 301 static void 302 mfi_pci_free(struct mfi_softc *sc) 303 { 304 305 if (sc->mfi_regs_resource != NULL) { 306 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY, 307 sc->mfi_regs_rid, sc->mfi_regs_resource); 308 } 309 if (sc->mfi_irq_type == PCI_INTR_TYPE_MSI) 310 pci_release_msi(sc->mfi_dev); 311 } 312 313 static int 314 mfi_pci_suspend(device_t dev) 315 { 316 317 return (EINVAL); 318 } 319 320 static int 321 mfi_pci_resume(device_t dev) 322 { 323 324 return (EINVAL); 325 } 326