1 /*- 2 * Copyright (c) 2009 Yahoo! Inc. 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 * $FreeBSD: src/sys/dev/mps/mps_pci.c,v 1.4 2012/01/26 18:17:21 ken Exp $ 27 */ 28 29 /* PCI/PCI-X/PCIe bus interface for the LSI MPT2 controllers */ 30 31 /* TODO Move headers to mpsvar */ 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/bus.h> 38 #include <sys/conf.h> 39 #include <sys/eventhandler.h> 40 #include <sys/malloc.h> 41 #include <sys/sysctl.h> 42 #include <sys/uio.h> 43 44 #include <sys/rman.h> 45 46 #include <bus/pci/pcireg.h> 47 #include <bus/pci/pcivar.h> 48 #include <bus/pci/pci_private.h> 49 50 #include <dev/raid/mps/mpi/mpi2_type.h> 51 #include <dev/raid/mps/mpi/mpi2.h> 52 #include <dev/raid/mps/mpi/mpi2_ioc.h> 53 #include <dev/raid/mps/mpi/mpi2_cnfg.h> 54 #include <dev/raid/mps/mpi/mpi2_tool.h> 55 56 #include <sys/queue.h> 57 #include <sys/kthread.h> 58 #include <dev/raid/mps/mps_ioctl.h> 59 #include <dev/raid/mps/mpsvar.h> 60 61 static int mps_pci_probe(device_t); 62 static int mps_pci_attach(device_t); 63 static int mps_pci_detach(device_t); 64 static int mps_pci_suspend(device_t); 65 static int mps_pci_resume(device_t); 66 static void mps_pci_free(struct mps_softc *); 67 #if 0 /* XXX swildner */ 68 static int mps_alloc_msix(struct mps_softc *sc, int msgs); 69 #endif 70 71 static device_method_t mps_methods[] = { 72 DEVMETHOD(device_probe, mps_pci_probe), 73 DEVMETHOD(device_attach, mps_pci_attach), 74 DEVMETHOD(device_detach, mps_pci_detach), 75 DEVMETHOD(device_suspend, mps_pci_suspend), 76 DEVMETHOD(device_resume, mps_pci_resume), 77 78 { 0, 0 } 79 }; 80 81 static driver_t mps_pci_driver = { 82 "mps", 83 mps_methods, 84 sizeof(struct mps_softc) 85 }; 86 87 static devclass_t mps_devclass; 88 DRIVER_MODULE(mps, pci, mps_pci_driver, mps_devclass, 0, 0); 89 MODULE_VERSION(mps, 1); 90 91 struct mps_ident { 92 uint16_t vendor; 93 uint16_t device; 94 uint16_t subvendor; 95 uint16_t subdevice; 96 u_int flags; 97 const char *desc; 98 } mps_identifiers[] = { 99 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004, 100 0xffff, 0xffff, 0, "LSI SAS2004" }, 101 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008, 102 0xffff, 0xffff, 0, "LSI SAS2008" }, 103 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1, 104 0xffff, 0xffff, 0, "LSI SAS2108" }, 105 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2, 106 0xffff, 0xffff, 0, "LSI SAS2108" }, 107 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3, 108 0xffff, 0xffff, 0, "LSI SAS2108" }, 109 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1, 110 0xffff, 0xffff, 0, "LSI SAS2116" }, 111 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2, 112 0xffff, 0xffff, 0, "LSI SAS2116" }, 113 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1, 114 0xffff, 0xffff, 0, "LSI SAS2208" }, 115 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2, 116 0xffff, 0xffff, 0, "LSI SAS2208" }, 117 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3, 118 0xffff, 0xffff, 0, "LSI SAS2208" }, 119 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4, 120 0xffff, 0xffff, 0, "LSI SAS2208" }, 121 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5, 122 0xffff, 0xffff, 0, "LSI SAS2208" }, 123 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6, 124 0xffff, 0xffff, 0, "LSI SAS2208" }, 125 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1, 126 0xffff, 0xffff, 0, "LSI SAS2308" }, 127 // Add Customer specific vender/subdevice id before generic 128 // (0xffff) vender/subdevice id. 129 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, 130 0x8086, 0x3516, 0, "Intel(R) Integrated RAID Module RMS25JB080" }, 131 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, 132 0x8086, 0x3517, 0, "Intel(R) Integrated RAID Module RMS25JB040" }, 133 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, 134 0x8086, 0x3518, 0, "Intel(R) Integrated RAID Module RMS25KB080" }, 135 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, 136 0x8086, 0x3519, 0, "Intel(R) Integrated RAID Module RMS25KB040" }, 137 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, 138 0xffff, 0xffff, 0, "LSI SAS2308" }, 139 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3, 140 0xffff, 0xffff, 0, "LSI SAS2308" }, 141 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200, 142 0xffff, 0xffff, MPS_FLAGS_WD_AVAILABLE, "LSI SSS6200" }, 143 { 0, 0, 0, 0, 0, NULL } 144 }; 145 146 static struct mps_ident * 147 mps_find_ident(device_t dev) 148 { 149 struct mps_ident *m; 150 151 for (m = mps_identifiers; m->vendor != 0; m++) { 152 if (m->vendor != pci_get_vendor(dev)) 153 continue; 154 if (m->device != pci_get_device(dev)) 155 continue; 156 if ((m->subvendor != 0xffff) && 157 (m->subvendor != pci_get_subvendor(dev))) 158 continue; 159 if ((m->subdevice != 0xffff) && 160 (m->subdevice != pci_get_subdevice(dev))) 161 continue; 162 return (m); 163 } 164 165 return (NULL); 166 } 167 168 static int 169 mps_pci_probe(device_t dev) 170 { 171 struct mps_ident *id; 172 173 if ((id = mps_find_ident(dev)) != NULL) { 174 device_set_desc(dev, id->desc); 175 return (BUS_PROBE_VENDOR); 176 } 177 return (ENXIO); 178 } 179 180 static int 181 mps_pci_attach(device_t dev) 182 { 183 struct mps_softc *sc; 184 struct mps_ident *m; 185 uint16_t command; 186 int error; 187 188 sc = device_get_softc(dev); 189 bzero(sc, sizeof(*sc)); 190 sc->mps_dev = dev; 191 m = mps_find_ident(dev); 192 sc->mps_flags = m->flags; 193 194 /* Twiddle basic PCI config bits for a sanity check */ 195 command = pci_read_config(dev, PCIR_COMMAND, 2); 196 command |= PCIM_CMD_BUSMASTEREN; 197 pci_write_config(dev, PCIR_COMMAND, command, 2); 198 command = pci_read_config(dev, PCIR_COMMAND, 2); 199 if ((command & PCIM_CMD_BUSMASTEREN) == 0) { 200 device_printf(dev, "Cannot enable PCI busmaster\n"); 201 return (ENXIO); 202 } 203 if ((command & PCIM_CMD_MEMEN) == 0) { 204 device_printf(dev, "PCI memory window not available\n"); 205 return (ENXIO); 206 } 207 208 /* Allocate the System Interface Register Set */ 209 sc->mps_regs_rid = PCIR_BAR(1); 210 if ((sc->mps_regs_resource = bus_alloc_resource_any(dev, 211 SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) { 212 device_printf(dev, "Cannot allocate PCI registers\n"); 213 return (ENXIO); 214 } 215 sc->mps_btag = rman_get_bustag(sc->mps_regs_resource); 216 sc->mps_bhandle = rman_get_bushandle(sc->mps_regs_resource); 217 218 /* Allocate the parent DMA tag */ 219 if (bus_dma_tag_create(NULL, /* parent */ 220 1, 0, /* algnmnt, boundary */ 221 BUS_SPACE_MAXADDR, /* lowaddr */ 222 BUS_SPACE_MAXADDR, /* highaddr */ 223 NULL, NULL, /* filter, filterarg */ 224 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 225 BUS_SPACE_UNRESTRICTED, /* nsegments */ 226 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 227 0, /* flags */ 228 &sc->mps_parent_dmat)) { 229 device_printf(dev, "Cannot allocate parent DMA tag\n"); 230 mps_pci_free(sc); 231 return (ENOMEM); 232 } 233 234 if ((error = mps_attach(sc)) != 0) 235 mps_pci_free(sc); 236 237 return (error); 238 } 239 240 int 241 mps_pci_setup_interrupts(struct mps_softc *sc) 242 { 243 device_t dev; 244 int error; 245 u_int irq_flags; 246 247 dev = sc->mps_dev; 248 #if 0 /* XXX swildner */ 249 if ((sc->disable_msix == 0) && 250 ((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT)) 251 error = mps_alloc_msix(sc, MPS_MSI_COUNT); 252 #endif 253 254 sc->mps_irq_rid[0] = 0; 255 sc->mps_irq_type[0] = pci_alloc_1intr(dev, sc->enable_msi, 256 &sc->mps_irq_rid[0], &irq_flags); 257 sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ, 258 &sc->mps_irq_rid[0], irq_flags); 259 if (sc->mps_irq[0] == NULL) { 260 device_printf(dev, "Cannot allocate interrupt\n"); 261 return (ENXIO); 262 } 263 error = bus_setup_intr(dev, sc->mps_irq[0], INTR_MPSAFE, mps_intr, sc, 264 &sc->mps_intrhand[0], NULL); 265 if (error) 266 device_printf(dev, "Cannot setup interrupt\n"); 267 268 return (error); 269 } 270 271 static int 272 mps_pci_detach(device_t dev) 273 { 274 struct mps_softc *sc; 275 int error; 276 277 sc = device_get_softc(dev); 278 279 if ((error = mps_free(sc)) != 0) 280 return (error); 281 282 mps_pci_free(sc); 283 return (0); 284 } 285 286 static void 287 mps_pci_free(struct mps_softc *sc) 288 { 289 if (sc->mps_parent_dmat != NULL) { 290 bus_dma_tag_destroy(sc->mps_parent_dmat); 291 } 292 293 bus_teardown_intr(sc->mps_dev, sc->mps_irq[0], sc->mps_intrhand[0]); 294 bus_release_resource(sc->mps_dev, SYS_RES_IRQ, sc->mps_irq_rid[0], 295 sc->mps_irq[0]); 296 if (sc->mps_irq_type[0] == PCI_INTR_TYPE_MSI) 297 pci_release_msi(sc->mps_dev); 298 299 if (sc->mps_regs_resource != NULL) { 300 bus_release_resource(sc->mps_dev, SYS_RES_MEMORY, 301 sc->mps_regs_rid, sc->mps_regs_resource); 302 } 303 304 return; 305 } 306 307 static int 308 mps_pci_suspend(device_t dev) 309 { 310 return (EINVAL); 311 } 312 313 static int 314 mps_pci_resume(device_t dev) 315 { 316 return (EINVAL); 317 } 318 319 #if 0 /* XXX swildner */ 320 static int 321 mps_alloc_msix(struct mps_softc *sc, int msgs) 322 { 323 int error; 324 325 error = pci_alloc_msix(sc->mps_dev, &msgs); 326 return (error); 327 } 328 #endif 329 330 int 331 mps_pci_restore(struct mps_softc *sc) 332 { 333 struct pci_devinfo *dinfo; 334 335 mps_dprint(sc, MPS_TRACE, "%s\n", __func__); 336 337 dinfo = device_get_ivars(sc->mps_dev); 338 if (dinfo == NULL) { 339 mps_dprint(sc, MPS_FAULT, "%s: NULL dinfo\n", __func__); 340 return (EINVAL); 341 } 342 343 pci_cfg_restore(sc->mps_dev, dinfo); 344 return (0); 345 } 346