1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2000 Michael Smith 5 * Copyright (c) 2001 Scott Long 6 * Copyright (c) 2000 BSDi 7 * Copyright (c) 2001-2010 Adaptec, Inc. 8 * Copyright (c) 2010-2012 PMC-Sierra, Inc. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 /* 37 * PCI bus interface and resource allocation. 38 */ 39 40 #include "opt_aacraid.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/module.h> 46 47 #include <sys/bio.h> 48 #include <sys/bus.h> 49 #include <sys/conf.h> 50 #include <sys/disk.h> 51 52 #include <machine/bus.h> 53 #include <machine/resource.h> 54 #include <sys/rman.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 59 #include <dev/aacraid/aacraid_reg.h> 60 #include <sys/aac_ioctl.h> 61 #include <dev/aacraid/aacraid_debug.h> 62 #include <dev/aacraid/aacraid_var.h> 63 64 static int aacraid_pci_probe(device_t dev); 65 static int aacraid_pci_attach(device_t dev); 66 67 static device_method_t aacraid_methods[] = { 68 /* Device interface */ 69 DEVMETHOD(device_probe, aacraid_pci_probe), 70 DEVMETHOD(device_attach, aacraid_pci_attach), 71 DEVMETHOD(device_detach, aacraid_detach), 72 DEVMETHOD(device_suspend, aacraid_suspend), 73 DEVMETHOD(device_resume, aacraid_resume), 74 75 DEVMETHOD(bus_print_child, bus_generic_print_child), 76 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 77 { 0, 0 } 78 }; 79 80 static driver_t aacraid_pci_driver = { 81 "aacraid", 82 aacraid_methods, 83 sizeof(struct aac_softc) 84 }; 85 86 static devclass_t aacraid_devclass; 87 88 struct aac_ident 89 { 90 u_int16_t vendor; 91 u_int16_t device; 92 u_int16_t subvendor; 93 u_int16_t subdevice; 94 int hwif; 95 int quirks; 96 char *desc; 97 } aacraid_family_identifiers[] = { 98 {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0, 99 "Adaptec RAID Controller"}, 100 {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0, 101 "Adaptec RAID Controller"}, 102 {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0, 103 "Adaptec RAID Controller"}, 104 {0, 0, 0, 0, 0, 0, 0} 105 }; 106 107 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, aacraid_devclass, 0, 0); 108 MODULE_PNP_INFO("U16:vendor;U16:device", pci, aacraid, 109 aacraid_family_identifiers, sizeof(aacraid_family_identifiers[0]), 110 nitems(aacraid_family_identifiers) - 1); 111 MODULE_DEPEND(aacraid, pci, 1, 1, 1); 112 113 static struct aac_ident * 114 aac_find_ident(device_t dev) 115 { 116 struct aac_ident *m; 117 u_int16_t vendid, devid; 118 119 vendid = pci_get_vendor(dev); 120 devid = pci_get_device(dev); 121 122 for (m = aacraid_family_identifiers; m->vendor != 0; m++) { 123 if ((m->vendor == vendid) && (m->device == devid)) 124 return (m); 125 } 126 127 return (NULL); 128 } 129 130 /* 131 * Determine whether this is one of our supported adapters. 132 */ 133 static int 134 aacraid_pci_probe(device_t dev) 135 { 136 struct aac_ident *id; 137 138 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 139 140 if ((id = aac_find_ident(dev)) != NULL) { 141 device_set_desc(dev, id->desc); 142 return(BUS_PROBE_DEFAULT); 143 } 144 return(ENXIO); 145 } 146 147 /* 148 * Allocate resources for our device, set up the bus interface. 149 */ 150 static int 151 aacraid_pci_attach(device_t dev) 152 { 153 struct aac_softc *sc; 154 struct aac_ident *id; 155 int error; 156 u_int32_t command; 157 158 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 159 160 /* 161 * Initialise softc. 162 */ 163 sc = device_get_softc(dev); 164 bzero(sc, sizeof(*sc)); 165 sc->aac_dev = dev; 166 167 /* assume failure is 'not configured' */ 168 error = ENXIO; 169 170 /* 171 * Verify that the adapter is correctly set up in PCI space. 172 */ 173 pci_enable_busmaster(dev); 174 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 175 if (!(command & PCIM_CMD_BUSMASTEREN)) { 176 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 177 goto out; 178 } 179 180 /* 181 * Detect the hardware interface version, set up the bus interface 182 * indirection. 183 */ 184 id = aac_find_ident(dev); 185 sc->aac_hwif = id->hwif; 186 switch(sc->aac_hwif) { 187 case AAC_HWIF_SRC: 188 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC"); 189 sc->aac_if = aacraid_src_interface; 190 break; 191 case AAC_HWIF_SRCV: 192 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv"); 193 sc->aac_if = aacraid_srcv_interface; 194 break; 195 default: 196 sc->aac_hwif = AAC_HWIF_UNKNOWN; 197 device_printf(sc->aac_dev, "unknown hardware type\n"); 198 error = ENXIO; 199 goto out; 200 } 201 202 /* assume failure is 'out of memory' */ 203 error = ENOMEM; 204 205 /* 206 * Allocate the PCI register window. 207 */ 208 sc->aac_regs_rid0 = PCIR_BAR(0); 209 if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev, 210 SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) { 211 device_printf(sc->aac_dev, 212 "couldn't allocate register window 0\n"); 213 goto out; 214 } 215 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); 216 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); 217 218 sc->aac_regs_rid1 = PCIR_BAR(2); 219 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev, 220 SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) { 221 device_printf(sc->aac_dev, 222 "couldn't allocate register window 1\n"); 223 goto out; 224 } 225 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); 226 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); 227 228 /* 229 * Allocate the parent bus DMA tag appropriate for our PCI interface. 230 * 231 * Note that some of these controllers are 64-bit capable. 232 */ 233 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 234 PAGE_SIZE, 0, /* algnmnt, boundary */ 235 BUS_SPACE_MAXADDR, /* lowaddr */ 236 BUS_SPACE_MAXADDR, /* highaddr */ 237 NULL, NULL, /* filter, filterarg */ 238 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 239 BUS_SPACE_UNRESTRICTED, /* nsegments */ 240 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 241 0, /* flags */ 242 NULL, NULL, /* No locking needed */ 243 &sc->aac_parent_dmat)) { 244 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 245 goto out; 246 } 247 248 /* Set up quirks */ 249 sc->flags = id->quirks; 250 251 /* 252 * Do bus-independent initialisation. 253 */ 254 error = aacraid_attach(sc); 255 256 out: 257 if (error) 258 aacraid_free(sc); 259 return(error); 260 } 261