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 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 int quirks; 94 char *desc; 95 } aacraid_family_identifiers[] = { 96 {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0, 97 "Adaptec RAID Controller"}, 98 {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0, 99 "Adaptec RAID Controller"}, 100 {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0, 101 "Adaptec RAID Controller"}, 102 {0, 0, 0, 0, 0, 0, 0} 103 }; 104 105 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, 0, 0); 106 MODULE_PNP_INFO("U16:vendor;U16:device", pci, aacraid, 107 aacraid_family_identifiers, 108 nitems(aacraid_family_identifiers) - 1); 109 MODULE_DEPEND(aacraid, pci, 1, 1, 1); 110 111 static struct aac_ident * 112 aac_find_ident(device_t dev) 113 { 114 struct aac_ident *m; 115 u_int16_t vendid, devid; 116 117 vendid = pci_get_vendor(dev); 118 devid = pci_get_device(dev); 119 120 for (m = aacraid_family_identifiers; m->vendor != 0; m++) { 121 if ((m->vendor == vendid) && (m->device == devid)) 122 return (m); 123 } 124 125 return (NULL); 126 } 127 128 /* 129 * Determine whether this is one of our supported adapters. 130 */ 131 static int 132 aacraid_pci_probe(device_t dev) 133 { 134 struct aac_ident *id; 135 136 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 137 138 if ((id = aac_find_ident(dev)) != NULL) { 139 device_set_desc(dev, id->desc); 140 return(BUS_PROBE_DEFAULT); 141 } 142 return(ENXIO); 143 } 144 145 /* 146 * Allocate resources for our device, set up the bus interface. 147 */ 148 static int 149 aacraid_pci_attach(device_t dev) 150 { 151 struct aac_softc *sc; 152 struct aac_ident *id; 153 int error; 154 u_int32_t command; 155 156 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 157 158 /* 159 * Initialise softc. 160 */ 161 sc = device_get_softc(dev); 162 bzero(sc, sizeof(*sc)); 163 sc->aac_dev = dev; 164 165 /* assume failure is 'not configured' */ 166 error = ENXIO; 167 168 /* 169 * Verify that the adapter is correctly set up in PCI space. 170 */ 171 pci_enable_busmaster(dev); 172 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 173 if (!(command & PCIM_CMD_BUSMASTEREN)) { 174 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 175 goto out; 176 } 177 178 /* 179 * Detect the hardware interface version, set up the bus interface 180 * indirection. 181 */ 182 id = aac_find_ident(dev); 183 sc->aac_hwif = id->hwif; 184 switch(sc->aac_hwif) { 185 case AAC_HWIF_SRC: 186 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC"); 187 sc->aac_if = aacraid_src_interface; 188 break; 189 case AAC_HWIF_SRCV: 190 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv"); 191 sc->aac_if = aacraid_srcv_interface; 192 break; 193 default: 194 sc->aac_hwif = AAC_HWIF_UNKNOWN; 195 device_printf(sc->aac_dev, "unknown hardware type\n"); 196 error = ENXIO; 197 goto out; 198 } 199 200 /* assume failure is 'out of memory' */ 201 error = ENOMEM; 202 203 /* 204 * Allocate the PCI register window. 205 */ 206 sc->aac_regs_rid0 = PCIR_BAR(0); 207 if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev, 208 SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) { 209 device_printf(sc->aac_dev, 210 "couldn't allocate register window 0\n"); 211 goto out; 212 } 213 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); 214 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); 215 216 sc->aac_regs_rid1 = PCIR_BAR(2); 217 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev, 218 SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) { 219 device_printf(sc->aac_dev, 220 "couldn't allocate register window 1\n"); 221 goto out; 222 } 223 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); 224 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); 225 226 /* 227 * Allocate the parent bus DMA tag appropriate for our PCI interface. 228 * 229 * Note that some of these controllers are 64-bit capable. 230 */ 231 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 232 PAGE_SIZE, 0, /* algnmnt, boundary */ 233 BUS_SPACE_MAXADDR, /* lowaddr */ 234 BUS_SPACE_MAXADDR, /* highaddr */ 235 NULL, NULL, /* filter, filterarg */ 236 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 237 BUS_SPACE_UNRESTRICTED, /* nsegments */ 238 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 239 0, /* flags */ 240 NULL, NULL, /* No locking needed */ 241 &sc->aac_parent_dmat)) { 242 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 243 goto out; 244 } 245 246 /* Set up quirks */ 247 sc->flags = id->quirks; 248 249 /* 250 * Do bus-independent initialisation. 251 */ 252 error = aacraid_attach(sc); 253 254 out: 255 if (error) 256 aacraid_free(sc); 257 return(error); 258 } 259