1 /*- 2 * Copyright (c) 2015-2016 Chelsio Communications, Inc. 3 * All rights reserved. 4 * Written by: John Baldwin <jhb@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/bus.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/systm.h> 36 #include <dev/pci/pcivar.h> 37 38 #ifdef PCI_IOV 39 #include <sys/nv.h> 40 #include <sys/iov_schema.h> 41 #include <dev/pci/pci_iov.h> 42 #endif 43 44 #include "common/common.h" 45 #include "t4_if.h" 46 47 struct t4iov_softc { 48 device_t sc_dev; 49 device_t sc_main; 50 bool sc_attached; 51 }; 52 53 struct { 54 uint16_t device; 55 char *desc; 56 } t4iov_pciids[] = { 57 {0x4000, "Chelsio T440-dbg"}, 58 {0x4001, "Chelsio T420-CR"}, 59 {0x4002, "Chelsio T422-CR"}, 60 {0x4003, "Chelsio T440-CR"}, 61 {0x4004, "Chelsio T420-BCH"}, 62 {0x4005, "Chelsio T440-BCH"}, 63 {0x4006, "Chelsio T440-CH"}, 64 {0x4007, "Chelsio T420-SO"}, 65 {0x4008, "Chelsio T420-CX"}, 66 {0x4009, "Chelsio T420-BT"}, 67 {0x400a, "Chelsio T404-BT"}, 68 {0x400e, "Chelsio T440-LP-CR"}, 69 }, t5iov_pciids[] = { 70 {0x5000, "Chelsio T580-dbg"}, 71 {0x5001, "Chelsio T520-CR"}, /* 2 x 10G */ 72 {0x5002, "Chelsio T522-CR"}, /* 2 x 10G, 2 X 1G */ 73 {0x5003, "Chelsio T540-CR"}, /* 4 x 10G */ 74 {0x5007, "Chelsio T520-SO"}, /* 2 x 10G, nomem */ 75 {0x5009, "Chelsio T520-BT"}, /* 2 x 10GBaseT */ 76 {0x500a, "Chelsio T504-BT"}, /* 4 x 1G */ 77 {0x500d, "Chelsio T580-CR"}, /* 2 x 40G */ 78 {0x500e, "Chelsio T540-LP-CR"}, /* 4 x 10G */ 79 {0x5010, "Chelsio T580-LP-CR"}, /* 2 x 40G */ 80 {0x5011, "Chelsio T520-LL-CR"}, /* 2 x 10G */ 81 {0x5012, "Chelsio T560-CR"}, /* 1 x 40G, 2 x 10G */ 82 {0x5014, "Chelsio T580-LP-SO-CR"}, /* 2 x 40G, nomem */ 83 {0x5015, "Chelsio T502-BT"}, /* 2 x 1G */ 84 #ifdef notyet 85 {0x5004, "Chelsio T520-BCH"}, 86 {0x5005, "Chelsio T540-BCH"}, 87 {0x5006, "Chelsio T540-CH"}, 88 {0x5008, "Chelsio T520-CX"}, 89 {0x500b, "Chelsio B520-SR"}, 90 {0x500c, "Chelsio B504-BT"}, 91 {0x500f, "Chelsio Amsterdam"}, 92 {0x5013, "Chelsio T580-CHR"}, 93 #endif 94 }, t6iov_pciids[] = { 95 {0x6001, "Chelsio T6225-CR"}, /* 2 x 10/25G */ 96 {0x6002, "Chelsio T6225-SO-CR"}, /* 2 x 10/25G, nomem */ 97 {0x6007, "Chelsio T62100-LP-CR"}, /* 2 x 40/50/100G */ 98 {0x6008, "Chelsio T62100-SO-CR"}, /* 2 x 40/50/100G, nomem */ 99 {0x600d, "Chelsio T62100-CR"}, /* 2 x 40/50/100G */ 100 }; 101 102 static int t4iov_attach_child(device_t dev); 103 104 static int 105 t4iov_probe(device_t dev) 106 { 107 uint16_t d; 108 size_t i; 109 110 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 111 return (ENXIO); 112 113 d = pci_get_device(dev); 114 for (i = 0; i < nitems(t4iov_pciids); i++) { 115 if (d == t4iov_pciids[i].device) { 116 device_set_desc(dev, t4iov_pciids[i].desc); 117 device_quiet(dev); 118 return (BUS_PROBE_DEFAULT); 119 } 120 } 121 return (ENXIO); 122 } 123 124 static int 125 t5iov_probe(device_t dev) 126 { 127 uint16_t d; 128 size_t i; 129 130 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 131 return (ENXIO); 132 133 d = pci_get_device(dev); 134 for (i = 0; i < nitems(t5iov_pciids); i++) { 135 if (d == t5iov_pciids[i].device) { 136 device_set_desc(dev, t5iov_pciids[i].desc); 137 device_quiet(dev); 138 return (BUS_PROBE_DEFAULT); 139 } 140 } 141 return (ENXIO); 142 } 143 144 static int 145 t6iov_probe(device_t dev) 146 { 147 uint16_t d; 148 size_t i; 149 150 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 151 return (ENXIO); 152 153 d = pci_get_device(dev); 154 for (i = 0; i < nitems(t6iov_pciids); i++) { 155 if (d == t6iov_pciids[i].device) { 156 device_set_desc(dev, t6iov_pciids[i].desc); 157 device_quiet(dev); 158 return (BUS_PROBE_DEFAULT); 159 } 160 } 161 return (ENXIO); 162 } 163 164 static int 165 t4iov_attach(device_t dev) 166 { 167 struct t4iov_softc *sc; 168 169 sc = device_get_softc(dev); 170 sc->sc_dev = dev; 171 172 sc->sc_main = pci_find_dbsf(pci_get_domain(dev), pci_get_bus(dev), 173 pci_get_slot(dev), 4); 174 if (sc->sc_main == NULL) 175 return (ENXIO); 176 if (T4_IS_MAIN_READY(sc->sc_main) == 0) 177 return (t4iov_attach_child(dev)); 178 return (0); 179 } 180 181 static int 182 t4iov_attach_child(device_t dev) 183 { 184 struct t4iov_softc *sc; 185 #ifdef PCI_IOV 186 nvlist_t *pf_schema, *vf_schema; 187 #endif 188 device_t pdev; 189 int error; 190 191 sc = device_get_softc(dev); 192 MPASS(!sc->sc_attached); 193 194 /* 195 * PF0-3 are associated with a specific port on the NIC (PF0 196 * with port 0, etc.). Ask the PF4 driver for the device for 197 * this function's associated port to determine if the port is 198 * present. 199 */ 200 error = T4_READ_PORT_DEVICE(sc->sc_main, pci_get_function(dev), &pdev); 201 if (error) 202 return (0); 203 204 #ifdef PCI_IOV 205 pf_schema = pci_iov_schema_alloc_node(); 206 vf_schema = pci_iov_schema_alloc_node(); 207 error = pci_iov_attach_name(dev, pf_schema, vf_schema, "%s", 208 device_get_nameunit(pdev)); 209 if (error) { 210 device_printf(dev, "Failed to initialize SR-IOV: %d\n", error); 211 return (0); 212 } 213 #endif 214 215 sc->sc_attached = true; 216 return (0); 217 } 218 219 static int 220 t4iov_detach_child(device_t dev) 221 { 222 struct t4iov_softc *sc; 223 #ifdef PCI_IOV 224 int error; 225 #endif 226 227 sc = device_get_softc(dev); 228 if (!sc->sc_attached) 229 return (0); 230 231 #ifdef PCI_IOV 232 error = pci_iov_detach(dev); 233 if (error != 0) { 234 device_printf(dev, "Failed to disable SR-IOV\n"); 235 return (error); 236 } 237 #endif 238 239 sc->sc_attached = false; 240 return (0); 241 } 242 243 static int 244 t4iov_detach(device_t dev) 245 { 246 struct t4iov_softc *sc; 247 int error; 248 249 sc = device_get_softc(dev); 250 if (sc->sc_attached) { 251 error = t4iov_detach_child(dev); 252 if (error) 253 return (error); 254 } 255 return (0); 256 } 257 258 #ifdef PCI_IOV 259 static int 260 t4iov_iov_init(device_t dev, uint16_t num_vfs, const struct nvlist *config) 261 { 262 263 /* XXX: The Linux driver sets up a vf_monitor task on T4 adapters. */ 264 return (0); 265 } 266 267 static void 268 t4iov_iov_uninit(device_t dev) 269 { 270 } 271 272 static int 273 t4iov_add_vf(device_t dev, uint16_t vfnum, const struct nvlist *config) 274 { 275 276 return (0); 277 } 278 #endif 279 280 static device_method_t t4iov_methods[] = { 281 DEVMETHOD(device_probe, t4iov_probe), 282 DEVMETHOD(device_attach, t4iov_attach), 283 DEVMETHOD(device_detach, t4iov_detach), 284 285 #ifdef PCI_IOV 286 DEVMETHOD(pci_iov_init, t4iov_iov_init), 287 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 288 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 289 #endif 290 291 DEVMETHOD(t4_attach_child, t4iov_attach_child), 292 DEVMETHOD(t4_detach_child, t4iov_detach_child), 293 294 DEVMETHOD_END 295 }; 296 297 static driver_t t4iov_driver = { 298 "t4iov", 299 t4iov_methods, 300 sizeof(struct t4iov_softc) 301 }; 302 303 static device_method_t t5iov_methods[] = { 304 DEVMETHOD(device_probe, t5iov_probe), 305 DEVMETHOD(device_attach, t4iov_attach), 306 DEVMETHOD(device_detach, t4iov_detach), 307 308 #ifdef PCI_IOV 309 DEVMETHOD(pci_iov_init, t4iov_iov_init), 310 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 311 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 312 #endif 313 314 DEVMETHOD(t4_attach_child, t4iov_attach_child), 315 DEVMETHOD(t4_detach_child, t4iov_detach_child), 316 317 DEVMETHOD_END 318 }; 319 320 static driver_t t5iov_driver = { 321 "t5iov", 322 t5iov_methods, 323 sizeof(struct t4iov_softc) 324 }; 325 326 static device_method_t t6iov_methods[] = { 327 DEVMETHOD(device_probe, t6iov_probe), 328 DEVMETHOD(device_attach, t4iov_attach), 329 DEVMETHOD(device_detach, t4iov_detach), 330 331 #ifdef PCI_IOV 332 DEVMETHOD(pci_iov_init, t4iov_iov_init), 333 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 334 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 335 #endif 336 337 DEVMETHOD(t4_attach_child, t4iov_attach_child), 338 DEVMETHOD(t4_detach_child, t4iov_detach_child), 339 340 DEVMETHOD_END 341 }; 342 343 static driver_t t6iov_driver = { 344 "t6iov", 345 t6iov_methods, 346 sizeof(struct t4iov_softc) 347 }; 348 349 static devclass_t t4iov_devclass, t5iov_devclass, t6iov_devclass; 350 351 DRIVER_MODULE(t4iov, pci, t4iov_driver, t4iov_devclass, 0, 0); 352 MODULE_VERSION(t4iov, 1); 353 354 DRIVER_MODULE(t5iov, pci, t5iov_driver, t5iov_devclass, 0, 0); 355 MODULE_VERSION(t5iov, 1); 356 357 DRIVER_MODULE(t6iov, pci, t6iov_driver, t6iov_devclass, 0, 0); 358 MODULE_VERSION(t6iov, 1); 359