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 */ 54 55 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */ 56 57 #include "opt_mfi.h" 58 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/kernel.h> 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <sys/conf.h> 65 #include <sys/buf2.h> 66 #include <sys/malloc.h> 67 #include <sys/uio.h> 68 #include <sys/eventhandler.h> 69 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, 0, 0); 105 MODULE_VERSION(mfi, 1); 106 107 struct mfi_ident { 108 uint16_t vendor; 109 uint16_t device; 110 uint16_t subvendor; 111 uint16_t subdevice; 112 int flags; 113 const char *desc; 114 } mfi_identifiers[] = { 115 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"}, 116 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 117 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 118 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"}, 119 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"}, 120 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"}, 121 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"}, 122 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"}, 123 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"}, 124 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"}, 125 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"}, 126 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"}, 127 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */ 128 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */ 129 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"}, 130 {0, 0, 0, 0, 0, NULL} 131 }; 132 133 static struct mfi_ident * 134 mfi_find_ident(device_t dev) 135 { 136 struct mfi_ident *m; 137 138 for (m = mfi_identifiers; m->vendor != 0; m++) { 139 if ((m->vendor == pci_get_vendor(dev)) && 140 (m->device == pci_get_device(dev)) && 141 ((m->subvendor == pci_get_subvendor(dev)) || 142 (m->subvendor == 0xffff)) && 143 ((m->subdevice == pci_get_subdevice(dev)) || 144 (m->subdevice == 0xffff))) 145 return (m); 146 } 147 148 return (NULL); 149 } 150 151 static int 152 mfi_pci_probe(device_t dev) 153 { 154 struct mfi_ident *id; 155 156 if ((id = mfi_find_ident(dev)) != NULL) { 157 device_set_desc(dev, id->desc); 158 return (BUS_PROBE_DEFAULT); 159 } 160 return (ENXIO); 161 } 162 163 static int 164 mfi_pci_attach(device_t dev) 165 { 166 struct mfi_softc *sc; 167 struct mfi_ident *m; 168 uint32_t command; 169 int error; 170 171 sc = device_get_softc(dev); 172 bzero(sc, sizeof(*sc)); 173 sc->mfi_dev = dev; 174 m = mfi_find_ident(dev); 175 sc->mfi_flags = m->flags; 176 177 /* Verify that the adapter can be set up in PCI space */ 178 command = pci_read_config(dev, PCIR_COMMAND, 2); 179 command |= PCIM_CMD_BUSMASTEREN; 180 pci_write_config(dev, PCIR_COMMAND, command, 2); 181 command = pci_read_config(dev, PCIR_COMMAND, 2); 182 if ((command & PCIM_CMD_BUSMASTEREN) == 0) { 183 device_printf(dev, "Can't enable PCI busmaster\n"); 184 return (ENXIO); 185 } 186 if ((command & PCIM_CMD_MEMEN) == 0) { 187 device_printf(dev, "PCI memory window not available\n"); 188 return (ENXIO); 189 } 190 191 /* Allocate PCI registers */ 192 if ((sc->mfi_flags & MFI_FLAGS_1064R) || 193 (sc->mfi_flags & MFI_FLAGS_1078)) { 194 /* 1068/1078: Memory mapped BAR is at offset 0x10 */ 195 sc->mfi_regs_rid = PCIR_BAR(0); 196 } else if (sc->mfi_flags & MFI_FLAGS_GEN2) { 197 /* GEN2: Memory mapped BAR is at offset 0x14 */ 198 sc->mfi_regs_rid = PCIR_BAR(1); 199 } 200 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev, 201 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) { 202 device_printf(dev, "Cannot allocate PCI registers\n"); 203 return (ENXIO); 204 } 205 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource); 206 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource); 207 208 error = ENOMEM; 209 210 /* Allocate parent DMA tag */ 211 if (bus_dma_tag_create( NULL, /* parent */ 212 1, 0, /* algnmnt, boundary */ 213 BUS_SPACE_MAXADDR, /* lowaddr */ 214 BUS_SPACE_MAXADDR, /* highaddr */ 215 NULL, NULL, /* filter, filterarg */ 216 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 217 BUS_SPACE_UNRESTRICTED, /* nsegments */ 218 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 219 0, /* flags */ 220 &sc->mfi_parent_dmat)) { 221 device_printf(dev, "Cannot allocate parent DMA tag\n"); 222 goto out; 223 } 224 225 error = mfi_attach(sc); 226 out: 227 if (error) { 228 mfi_free(sc); 229 mfi_pci_free(sc); 230 } 231 232 return (error); 233 } 234 235 static int 236 mfi_pci_detach(device_t dev) 237 { 238 struct mfi_softc *sc; 239 struct mfi_disk *ld; 240 int error; 241 242 sc = device_get_softc(dev); 243 244 lockmgr(&sc->mfi_config_lock, LK_EXCLUSIVE); 245 lockmgr(&sc->mfi_io_lock, LK_EXCLUSIVE); 246 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) { 247 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 248 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 249 return (EBUSY); 250 } 251 sc->mfi_detaching = 1; 252 lockmgr(&sc->mfi_io_lock, LK_RELEASE); 253 254 while ((ld = TAILQ_FIRST(&sc->mfi_ld_tqh)) != NULL) { 255 if ((error = device_delete_child(dev, ld->ld_dev)) != 0) { 256 sc->mfi_detaching = 0; 257 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 258 return (error); 259 } 260 } 261 lockmgr(&sc->mfi_config_lock, LK_RELEASE); 262 263 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh); 264 265 mfi_shutdown(sc); 266 mfi_free(sc); 267 mfi_pci_free(sc); 268 return (0); 269 } 270 271 static void 272 mfi_pci_free(struct mfi_softc *sc) 273 { 274 275 if (sc->mfi_regs_resource != NULL) { 276 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY, 277 sc->mfi_regs_rid, sc->mfi_regs_resource); 278 } 279 280 return; 281 } 282 283 static int 284 mfi_pci_suspend(device_t dev) 285 { 286 287 return (EINVAL); 288 } 289 290 static int 291 mfi_pci_resume(device_t dev) 292 { 293 294 return (EINVAL); 295 } 296