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 {0x6000, "Chelsio T6-DBG-25"}, /* 2 x 10/25G, debug */ 96 {0x6001, "Chelsio T6225-CR"}, /* 2 x 10/25G */ 97 {0x6002, "Chelsio T6225-SO-CR"}, /* 2 x 10/25G, nomem */ 98 {0x6003, "Chelsio T6425-CR"}, /* 4 x 10/25G */ 99 {0x6004, "Chelsio T6425-SO-CR"}, /* 4 x 10/25G, nomem */ 100 {0x6005, "Chelsio T6225-OCP-SO"}, /* 2 x 10/25G, nomem */ 101 {0x6006, "Chelsio T62100-OCP-SO"}, /* 2 x 40/50/100G, nomem */ 102 {0x6007, "Chelsio T62100-LP-CR"}, /* 2 x 40/50/100G */ 103 {0x6008, "Chelsio T62100-SO-CR"}, /* 2 x 40/50/100G, nomem */ 104 {0x6009, "Chelsio T6210-BT"}, /* 2 x 10GBASE-T */ 105 {0x600d, "Chelsio T62100-CR"}, /* 2 x 40/50/100G */ 106 {0x6010, "Chelsio T6-DBG-100"}, /* 2 x 40/50/100G, debug */ 107 {0x6011, "Chelsio T6225-LL-CR"}, /* 2 x 10/25G */ 108 {0x6014, "Chelsio T61100-OCP-SO"}, /* 1 x 40/50/100G, nomem */ 109 {0x6015, "Chelsio T6201-BT"}, /* 2 x 1000BASE-T */ 110 111 /* Custom */ 112 {0x6080, "Chelsio T6225 80"}, 113 {0x6081, "Chelsio T62100 81"}, 114 }; 115 116 static int t4iov_attach_child(device_t dev); 117 118 static int 119 t4iov_probe(device_t dev) 120 { 121 uint16_t d; 122 size_t i; 123 124 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 125 return (ENXIO); 126 127 d = pci_get_device(dev); 128 for (i = 0; i < nitems(t4iov_pciids); i++) { 129 if (d == t4iov_pciids[i].device) { 130 device_set_desc(dev, t4iov_pciids[i].desc); 131 device_quiet(dev); 132 return (BUS_PROBE_DEFAULT); 133 } 134 } 135 return (ENXIO); 136 } 137 138 static int 139 t5iov_probe(device_t dev) 140 { 141 uint16_t d; 142 size_t i; 143 144 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 145 return (ENXIO); 146 147 d = pci_get_device(dev); 148 for (i = 0; i < nitems(t5iov_pciids); i++) { 149 if (d == t5iov_pciids[i].device) { 150 device_set_desc(dev, t5iov_pciids[i].desc); 151 device_quiet(dev); 152 return (BUS_PROBE_DEFAULT); 153 } 154 } 155 return (ENXIO); 156 } 157 158 static int 159 t6iov_probe(device_t dev) 160 { 161 uint16_t d; 162 size_t i; 163 164 if (pci_get_vendor(dev) != PCI_VENDOR_ID_CHELSIO) 165 return (ENXIO); 166 167 d = pci_get_device(dev); 168 for (i = 0; i < nitems(t6iov_pciids); i++) { 169 if (d == t6iov_pciids[i].device) { 170 device_set_desc(dev, t6iov_pciids[i].desc); 171 device_quiet(dev); 172 return (BUS_PROBE_DEFAULT); 173 } 174 } 175 return (ENXIO); 176 } 177 178 static int 179 t4iov_attach(device_t dev) 180 { 181 struct t4iov_softc *sc; 182 183 sc = device_get_softc(dev); 184 sc->sc_dev = dev; 185 186 sc->sc_main = pci_find_dbsf(pci_get_domain(dev), pci_get_bus(dev), 187 pci_get_slot(dev), 4); 188 if (sc->sc_main == NULL) 189 return (ENXIO); 190 if (T4_IS_MAIN_READY(sc->sc_main) == 0) 191 return (t4iov_attach_child(dev)); 192 return (0); 193 } 194 195 static int 196 t4iov_attach_child(device_t dev) 197 { 198 struct t4iov_softc *sc; 199 #ifdef PCI_IOV 200 nvlist_t *pf_schema, *vf_schema; 201 #endif 202 device_t pdev; 203 int error; 204 205 sc = device_get_softc(dev); 206 MPASS(!sc->sc_attached); 207 208 /* 209 * PF0-3 are associated with a specific port on the NIC (PF0 210 * with port 0, etc.). Ask the PF4 driver for the device for 211 * this function's associated port to determine if the port is 212 * present. 213 */ 214 error = T4_READ_PORT_DEVICE(sc->sc_main, pci_get_function(dev), &pdev); 215 if (error) 216 return (0); 217 218 #ifdef PCI_IOV 219 pf_schema = pci_iov_schema_alloc_node(); 220 vf_schema = pci_iov_schema_alloc_node(); 221 error = pci_iov_attach_name(dev, pf_schema, vf_schema, "%s", 222 device_get_nameunit(pdev)); 223 if (error) { 224 device_printf(dev, "Failed to initialize SR-IOV: %d\n", error); 225 return (0); 226 } 227 #endif 228 229 sc->sc_attached = true; 230 return (0); 231 } 232 233 static int 234 t4iov_detach_child(device_t dev) 235 { 236 struct t4iov_softc *sc; 237 #ifdef PCI_IOV 238 int error; 239 #endif 240 241 sc = device_get_softc(dev); 242 if (!sc->sc_attached) 243 return (0); 244 245 #ifdef PCI_IOV 246 error = pci_iov_detach(dev); 247 if (error != 0) { 248 device_printf(dev, "Failed to disable SR-IOV\n"); 249 return (error); 250 } 251 #endif 252 253 sc->sc_attached = false; 254 return (0); 255 } 256 257 static int 258 t4iov_detach(device_t dev) 259 { 260 struct t4iov_softc *sc; 261 int error; 262 263 sc = device_get_softc(dev); 264 if (sc->sc_attached) { 265 error = t4iov_detach_child(dev); 266 if (error) 267 return (error); 268 } 269 return (0); 270 } 271 272 #ifdef PCI_IOV 273 static int 274 t4iov_iov_init(device_t dev, uint16_t num_vfs, const struct nvlist *config) 275 { 276 277 /* XXX: The Linux driver sets up a vf_monitor task on T4 adapters. */ 278 return (0); 279 } 280 281 static void 282 t4iov_iov_uninit(device_t dev) 283 { 284 } 285 286 static int 287 t4iov_add_vf(device_t dev, uint16_t vfnum, const struct nvlist *config) 288 { 289 290 return (0); 291 } 292 #endif 293 294 static device_method_t t4iov_methods[] = { 295 DEVMETHOD(device_probe, t4iov_probe), 296 DEVMETHOD(device_attach, t4iov_attach), 297 DEVMETHOD(device_detach, t4iov_detach), 298 299 #ifdef PCI_IOV 300 DEVMETHOD(pci_iov_init, t4iov_iov_init), 301 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 302 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 303 #endif 304 305 DEVMETHOD(t4_attach_child, t4iov_attach_child), 306 DEVMETHOD(t4_detach_child, t4iov_detach_child), 307 308 DEVMETHOD_END 309 }; 310 311 static driver_t t4iov_driver = { 312 "t4iov", 313 t4iov_methods, 314 sizeof(struct t4iov_softc) 315 }; 316 317 static device_method_t t5iov_methods[] = { 318 DEVMETHOD(device_probe, t5iov_probe), 319 DEVMETHOD(device_attach, t4iov_attach), 320 DEVMETHOD(device_detach, t4iov_detach), 321 322 #ifdef PCI_IOV 323 DEVMETHOD(pci_iov_init, t4iov_iov_init), 324 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 325 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 326 #endif 327 328 DEVMETHOD(t4_attach_child, t4iov_attach_child), 329 DEVMETHOD(t4_detach_child, t4iov_detach_child), 330 331 DEVMETHOD_END 332 }; 333 334 static driver_t t5iov_driver = { 335 "t5iov", 336 t5iov_methods, 337 sizeof(struct t4iov_softc) 338 }; 339 340 static device_method_t t6iov_methods[] = { 341 DEVMETHOD(device_probe, t6iov_probe), 342 DEVMETHOD(device_attach, t4iov_attach), 343 DEVMETHOD(device_detach, t4iov_detach), 344 345 #ifdef PCI_IOV 346 DEVMETHOD(pci_iov_init, t4iov_iov_init), 347 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 348 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 349 #endif 350 351 DEVMETHOD(t4_attach_child, t4iov_attach_child), 352 DEVMETHOD(t4_detach_child, t4iov_detach_child), 353 354 DEVMETHOD_END 355 }; 356 357 static driver_t t6iov_driver = { 358 "t6iov", 359 t6iov_methods, 360 sizeof(struct t4iov_softc) 361 }; 362 363 static devclass_t t4iov_devclass, t5iov_devclass, t6iov_devclass; 364 365 DRIVER_MODULE(t4iov, pci, t4iov_driver, t4iov_devclass, 0, 0); 366 MODULE_VERSION(t4iov, 1); 367 368 DRIVER_MODULE(t5iov, pci, t5iov_driver, t5iov_devclass, 0, 0); 369 MODULE_VERSION(t5iov, 1); 370 371 DRIVER_MODULE(t6iov, pci, t6iov_driver, t6iov_devclass, 0, 0); 372 MODULE_VERSION(t6iov, 1); 373