1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* 33 * PCI bus interface and resource allocation. 34 */ 35 36 #include "opt_aac.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 42 #include <dev/aac/aac_compat.h> 43 #include <sys/bus.h> 44 #include <sys/conf.h> 45 #include <sys/devicestat.h> 46 #include <sys/disk.h> 47 48 #include <machine/bus_memio.h> 49 #include <machine/bus.h> 50 #include <machine/resource.h> 51 #include <sys/rman.h> 52 53 #include <pci/pcireg.h> 54 #include <pci/pcivar.h> 55 56 #include <dev/aac/aacreg.h> 57 #include <dev/aac/aac_ioctl.h> 58 #include <dev/aac/aacvar.h> 59 60 static int aac_pci_probe(device_t dev); 61 static int aac_pci_attach(device_t dev); 62 63 static device_method_t aac_methods[] = { 64 /* Device interface */ 65 DEVMETHOD(device_probe, aac_pci_probe), 66 DEVMETHOD(device_attach, aac_pci_attach), 67 DEVMETHOD(device_detach, aac_detach), 68 DEVMETHOD(device_suspend, aac_suspend), 69 DEVMETHOD(device_resume, aac_resume), 70 71 DEVMETHOD(bus_print_child, bus_generic_print_child), 72 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 73 { 0, 0 } 74 }; 75 76 static driver_t aac_pci_driver = { 77 "aac", 78 aac_methods, 79 sizeof(struct aac_softc) 80 }; 81 82 static devclass_t aac_devclass; 83 84 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0); 85 86 struct aac_ident 87 { 88 u_int16_t vendor; 89 u_int16_t device; 90 u_int16_t subvendor; 91 u_int16_t subdevice; 92 int hwif; 93 char *desc; 94 } aac_identifiers[] = { 95 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, "Dell PERC 2/Si"}, 96 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 97 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, "Dell PERC 3/Si"}, 98 {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, "Dell PERC 3/Si"}, 99 {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 100 {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 101 {0x1028, 0x0008, 0x1028, 0x00cf, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 102 {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 103 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"}, 104 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 105 "Adaptec SCSI RAID 5400S"}, 106 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"}, 107 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"}, 108 {0, 0, 0, 0, 0, 0} 109 }; 110 111 /* 112 * Determine whether this is one of our supported adapters. 113 */ 114 static int 115 aac_pci_probe(device_t dev) 116 { 117 struct aac_ident *m; 118 119 debug_called(1); 120 121 for (m = aac_identifiers; m->vendor != 0; m++) { 122 if ((m->vendor == pci_get_vendor(dev)) && 123 (m->device == pci_get_device(dev)) && 124 ((m->subvendor == 0) || (m->subvendor == 125 pci_get_subvendor(dev))) && 126 ((m->subdevice == 0) || ((m->subdevice == 127 pci_get_subdevice(dev))))) { 128 129 device_set_desc(dev, m->desc); 130 return(-10); /* allow room to be overridden */ 131 } 132 } 133 return(ENXIO); 134 } 135 136 /* 137 * Allocate resources for our device, set up the bus interface. 138 */ 139 static int 140 aac_pci_attach(device_t dev) 141 { 142 struct aac_softc *sc; 143 int i, error; 144 u_int32_t command; 145 146 debug_called(1); 147 148 /* 149 * Initialise softc. 150 */ 151 sc = device_get_softc(dev); 152 bzero(sc, sizeof(*sc)); 153 sc->aac_dev = dev; 154 155 /* assume failure is 'not configured' */ 156 error = ENXIO; 157 158 /* 159 * Verify that the adapter is correctly set up in PCI space. 160 */ 161 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 162 command |= PCIM_CMD_BUSMASTEREN; 163 pci_write_config(dev, PCIR_COMMAND, command, 2); 164 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 165 if (!(command & PCIM_CMD_BUSMASTEREN)) { 166 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 167 goto out; 168 } 169 if ((command & PCIM_CMD_MEMEN) == 0) { 170 device_printf(sc->aac_dev, "memory window not available\n"); 171 goto out; 172 } 173 174 /* 175 * Allocate the PCI register window. 176 */ 177 sc->aac_regs_rid = 0x10; /* first base address register */ 178 if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, 179 SYS_RES_MEMORY, 180 &sc->aac_regs_rid, 181 0, ~0, 1, 182 RF_ACTIVE)) == NULL) { 183 device_printf(sc->aac_dev, 184 "couldn't allocate register window\n"); 185 goto out; 186 } 187 sc->aac_btag = rman_get_bustag(sc->aac_regs_resource); 188 sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource); 189 190 /* 191 * Allocate and connect our interrupt. 192 */ 193 sc->aac_irq_rid = 0; 194 if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, 195 &sc->aac_irq_rid, 0, ~0, 1, 196 RF_SHAREABLE | 197 RF_ACTIVE)) == NULL) { 198 device_printf(sc->aac_dev, "can't allocate interrupt\n"); 199 goto out; 200 } 201 #ifndef INTR_ENTROPY 202 #define INTR_ENTROPY 0 203 #endif 204 if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY, 205 aac_intr, sc, &sc->aac_intr)) { 206 device_printf(sc->aac_dev, "can't set up interrupt\n"); 207 goto out; 208 } 209 210 /* assume failure is 'out of memory' */ 211 error = ENOMEM; 212 213 /* 214 * Allocate the parent bus DMA tag appropriate for our PCI interface. 215 * 216 * Note that some of these controllers are 64-bit capable. 217 */ 218 if (bus_dma_tag_create(NULL, /* parent */ 219 1, 0, /* algnmnt, boundary */ 220 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 221 BUS_SPACE_MAXADDR, /* highaddr */ 222 NULL, NULL, /* filter, filterarg */ 223 MAXBSIZE, /* maxsize */ 224 AAC_MAXSGENTRIES, /* nsegments */ 225 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 226 BUS_DMA_ALLOCNOW, /* flags */ 227 &sc->aac_parent_dmat)) { 228 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 229 goto out; 230 } 231 232 /* 233 * Create DMA tag for mapping buffers into controller-addressable space. 234 */ 235 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 236 1, 0, /* algnmnt, boundary */ 237 BUS_SPACE_MAXADDR, /* lowaddr */ 238 BUS_SPACE_MAXADDR, /* highaddr */ 239 NULL, NULL, /* filter, filterarg */ 240 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 241 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 242 0, /* flags */ 243 &sc->aac_buffer_dmat)) { 244 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 245 goto out; 246 } 247 248 /* 249 * Create DMA tag for mapping FIBs into controller-addressable space.. 250 */ 251 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 252 1, 0, /* algnmnt, boundary */ 253 BUS_SPACE_MAXADDR, /* lowaddr */ 254 BUS_SPACE_MAXADDR, /* highaddr */ 255 NULL, NULL, /* filter, filterarg */ 256 AAC_FIB_COUNT * 257 sizeof(struct aac_fib), 1, /* maxsize, nsegments */ 258 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 259 0, /* flags */ 260 &sc->aac_fib_dmat)) { 261 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n"); 262 goto out; 263 } 264 265 /* 266 * Detect the hardware interface version, set up the bus interface 267 * indirection. 268 */ 269 sc->aac_hwif = AAC_HWIF_UNKNOWN; 270 for (i = 0; aac_identifiers[i].vendor != 0; i++) { 271 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) && 272 (aac_identifiers[i].device == pci_get_device(dev))) { 273 sc->aac_hwif = aac_identifiers[i].hwif; 274 switch(sc->aac_hwif) { 275 case AAC_HWIF_I960RX: 276 debug(2, "set hardware up for i960Rx"); 277 sc->aac_if = aac_rx_interface; 278 break; 279 280 case AAC_HWIF_STRONGARM: 281 debug(2, "set hardware up for StrongARM"); 282 sc->aac_if = aac_sa_interface; 283 break; 284 case AAC_HWIF_FALCON: 285 debug(2, "set hardware up for Falcon/PPC"); 286 sc->aac_if = aac_fa_interface; 287 break; 288 } 289 break; 290 } 291 } 292 if (sc->aac_hwif == AAC_HWIF_UNKNOWN) { 293 device_printf(sc->aac_dev, "unknown hardware type\n"); 294 error = ENXIO; 295 goto out; 296 } 297 298 /* 299 * Do bus-independent initialisation. 300 */ 301 error = aac_attach(sc); 302 303 out: 304 if (error) 305 aac_free(sc); 306 return(error); 307 } 308