1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001-2010 Adaptec, Inc. 6 * Copyright (c) 2010-2012 PMC-Sierra, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 /* 35 * PCI bus interface and resource allocation. 36 */ 37 38 #include "opt_aacraid.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/module.h> 44 45 #include <sys/bio.h> 46 #include <sys/bus.h> 47 #include <sys/conf.h> 48 #include <sys/disk.h> 49 50 #include <machine/bus.h> 51 #include <machine/resource.h> 52 #include <sys/rman.h> 53 54 #include <dev/pci/pcireg.h> 55 #include <dev/pci/pcivar.h> 56 57 #include <dev/aacraid/aacraid_reg.h> 58 #include <sys/aac_ioctl.h> 59 #include <dev/aacraid/aacraid_debug.h> 60 #include <dev/aacraid/aacraid_var.h> 61 62 static int aacraid_pci_probe(device_t dev); 63 static int aacraid_pci_attach(device_t dev); 64 65 static device_method_t aacraid_methods[] = { 66 /* Device interface */ 67 DEVMETHOD(device_probe, aacraid_pci_probe), 68 DEVMETHOD(device_attach, aacraid_pci_attach), 69 DEVMETHOD(device_detach, aacraid_detach), 70 DEVMETHOD(device_suspend, aacraid_suspend), 71 DEVMETHOD(device_resume, aacraid_resume), 72 73 DEVMETHOD(bus_print_child, bus_generic_print_child), 74 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 75 { 0, 0 } 76 }; 77 78 static driver_t aacraid_pci_driver = { 79 "aacraid", 80 aacraid_methods, 81 sizeof(struct aac_softc) 82 }; 83 84 static devclass_t aacraid_devclass; 85 86 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, aacraid_devclass, 0, 0); 87 MODULE_DEPEND(aacraid, pci, 1, 1, 1); 88 89 struct aac_ident 90 { 91 u_int16_t vendor; 92 u_int16_t device; 93 u_int16_t subvendor; 94 u_int16_t subdevice; 95 int hwif; 96 int quirks; 97 char *desc; 98 } aacraid_family_identifiers[] = { 99 {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0, 100 "Adaptec RAID Controller"}, 101 {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0, 102 "Adaptec RAID Controller"}, 103 {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0, 104 "Adaptec RAID Controller"}, 105 {0x9005, 0x028f, 0, 0, AAC_HWIF_SRCV, 0, 106 "Adaptec RAID Controller"}, 107 {0, 0, 0, 0, 0, 0, 0} 108 }; 109 110 static struct aac_ident * 111 aac_find_ident(device_t dev) 112 { 113 struct aac_ident *m; 114 u_int16_t vendid, devid; 115 116 vendid = pci_get_vendor(dev); 117 devid = pci_get_device(dev); 118 119 for (m = aacraid_family_identifiers; m->vendor != 0; m++) { 120 if ((m->vendor == vendid) && (m->device == devid)) 121 return (m); 122 } 123 124 return (NULL); 125 } 126 127 /* 128 * Determine whether this is one of our supported adapters. 129 */ 130 static int 131 aacraid_pci_probe(device_t dev) 132 { 133 struct aac_ident *id; 134 135 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 136 137 if ((id = aac_find_ident(dev)) != NULL) { 138 device_set_desc(dev, id->desc); 139 return(BUS_PROBE_DEFAULT); 140 } 141 return(ENXIO); 142 } 143 144 /* 145 * Allocate resources for our device, set up the bus interface. 146 */ 147 static int 148 aacraid_pci_attach(device_t dev) 149 { 150 struct aac_softc *sc; 151 struct aac_ident *id; 152 int error; 153 u_int32_t command; 154 155 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 156 157 /* 158 * Initialise softc. 159 */ 160 sc = device_get_softc(dev); 161 bzero(sc, sizeof(*sc)); 162 sc->aac_dev = dev; 163 164 /* assume failure is 'not configured' */ 165 error = ENXIO; 166 167 /* 168 * Verify that the adapter is correctly set up in PCI space. 169 */ 170 pci_enable_busmaster(dev); 171 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 172 if (!(command & PCIM_CMD_BUSMASTEREN)) { 173 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 174 goto out; 175 } 176 177 /* 178 * Detect the hardware interface version, set up the bus interface 179 * indirection. 180 */ 181 id = aac_find_ident(dev); 182 sc->aac_hwif = id->hwif; 183 switch(sc->aac_hwif) { 184 case AAC_HWIF_SRC: 185 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC"); 186 sc->aac_if = aacraid_src_interface; 187 break; 188 case AAC_HWIF_SRCV: 189 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv"); 190 sc->aac_if = aacraid_srcv_interface; 191 break; 192 default: 193 sc->aac_hwif = AAC_HWIF_UNKNOWN; 194 device_printf(sc->aac_dev, "unknown hardware type\n"); 195 error = ENXIO; 196 goto out; 197 } 198 199 /* assume failure is 'out of memory' */ 200 error = ENOMEM; 201 202 /* 203 * Allocate the PCI register window. 204 */ 205 sc->aac_regs_rid0 = PCIR_BAR(0); 206 if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev, 207 SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) { 208 device_printf(sc->aac_dev, 209 "couldn't allocate register window 0\n"); 210 goto out; 211 } 212 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); 213 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); 214 215 sc->aac_regs_rid1 = PCIR_BAR(2); 216 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev, 217 SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) { 218 device_printf(sc->aac_dev, 219 "couldn't allocate register window 1\n"); 220 goto out; 221 } 222 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); 223 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); 224 225 /* 226 * Allocate the parent bus DMA tag appropriate for our PCI interface. 227 * 228 * Note that some of these controllers are 64-bit capable. 229 */ 230 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 231 PAGE_SIZE, 0, /* algnmnt, boundary */ 232 BUS_SPACE_MAXADDR, /* lowaddr */ 233 BUS_SPACE_MAXADDR, /* highaddr */ 234 NULL, NULL, /* filter, filterarg */ 235 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 236 BUS_SPACE_UNRESTRICTED, /* nsegments */ 237 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 238 0, /* flags */ 239 NULL, NULL, /* No locking needed */ 240 &sc->aac_parent_dmat)) { 241 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 242 goto out; 243 } 244 245 /* Set up quirks */ 246 sc->flags = id->quirks; 247 248 /* 249 * Do bus-independent initialisation. 250 */ 251 error = aacraid_attach(sc); 252 253 out: 254 if (error) 255 aacraid_free(sc); 256 return(error); 257 } 258