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 "t4_if.h" 45 46 struct t4iov_softc { 47 device_t sc_dev; 48 device_t sc_main; 49 bool sc_attached; 50 }; 51 52 struct { 53 uint16_t device; 54 char *desc; 55 } t4iov_pciids[] = { 56 {0x4000, "Chelsio T440-dbg"}, 57 {0x4001, "Chelsio T420-CR"}, 58 {0x4002, "Chelsio T422-CR"}, 59 {0x4003, "Chelsio T440-CR"}, 60 {0x4004, "Chelsio T420-BCH"}, 61 {0x4005, "Chelsio T440-BCH"}, 62 {0x4006, "Chelsio T440-CH"}, 63 {0x4007, "Chelsio T420-SO"}, 64 {0x4008, "Chelsio T420-CX"}, 65 {0x4009, "Chelsio T420-BT"}, 66 {0x400a, "Chelsio T404-BT"}, 67 {0x400e, "Chelsio T440-LP-CR"}, 68 }, t5iov_pciids[] = { 69 {0x5000, "Chelsio T580-dbg"}, 70 {0x5001, "Chelsio T520-CR"}, /* 2 x 10G */ 71 {0x5002, "Chelsio T522-CR"}, /* 2 x 10G, 2 X 1G */ 72 {0x5003, "Chelsio T540-CR"}, /* 4 x 10G */ 73 {0x5007, "Chelsio T520-SO"}, /* 2 x 10G, nomem */ 74 {0x5009, "Chelsio T520-BT"}, /* 2 x 10GBaseT */ 75 {0x500a, "Chelsio T504-BT"}, /* 4 x 1G */ 76 {0x500d, "Chelsio T580-CR"}, /* 2 x 40G */ 77 {0x500e, "Chelsio T540-LP-CR"}, /* 4 x 10G */ 78 {0x5010, "Chelsio T580-LP-CR"}, /* 2 x 40G */ 79 {0x5011, "Chelsio T520-LL-CR"}, /* 2 x 10G */ 80 {0x5012, "Chelsio T560-CR"}, /* 1 x 40G, 2 x 10G */ 81 {0x5014, "Chelsio T580-LP-SO-CR"}, /* 2 x 40G, nomem */ 82 {0x5015, "Chelsio T502-BT"}, /* 2 x 1G */ 83 #ifdef notyet 84 {0x5004, "Chelsio T520-BCH"}, 85 {0x5005, "Chelsio T540-BCH"}, 86 {0x5006, "Chelsio T540-CH"}, 87 {0x5008, "Chelsio T520-CX"}, 88 {0x500b, "Chelsio B520-SR"}, 89 {0x500c, "Chelsio B504-BT"}, 90 {0x500f, "Chelsio Amsterdam"}, 91 {0x5013, "Chelsio T580-CHR"}, 92 #endif 93 }, t6iov_pciids[] = { 94 {0x6001, "Chelsio T6225-CR"}, /* 2 x 10/25G */ 95 {0x6002, "Chelsio T6225-SO-CR"}, /* 2 x 10/25G, nomem */ 96 {0x6007, "Chelsio T62100-LP-CR"}, /* 2 x 40/50/100G */ 97 {0x6008, "Chelsio T62100-SO-CR"}, /* 2 x 40/50/100G, nomem */ 98 {0x600d, "Chelsio T62100-CR"}, /* 2 x 40/50/100G */ 99 }; 100 101 static int t4iov_attach_child(device_t dev); 102 103 static int 104 t4iov_probe(device_t dev) 105 { 106 uint16_t d; 107 size_t i; 108 109 d = pci_get_device(dev); 110 for (i = 0; i < nitems(t4iov_pciids); i++) { 111 if (d == t4iov_pciids[i].device) { 112 device_set_desc(dev, t4iov_pciids[i].desc); 113 device_quiet(dev); 114 return (BUS_PROBE_DEFAULT); 115 } 116 } 117 return (ENXIO); 118 } 119 120 static int 121 t5iov_probe(device_t dev) 122 { 123 uint16_t d; 124 size_t i; 125 126 d = pci_get_device(dev); 127 for (i = 0; i < nitems(t5iov_pciids); i++) { 128 if (d == t5iov_pciids[i].device) { 129 device_set_desc(dev, t5iov_pciids[i].desc); 130 device_quiet(dev); 131 return (BUS_PROBE_DEFAULT); 132 } 133 } 134 return (ENXIO); 135 } 136 137 static int 138 t6iov_probe(device_t dev) 139 { 140 uint16_t d; 141 size_t i; 142 143 d = pci_get_device(dev); 144 for (i = 0; i < nitems(t6iov_pciids); i++) { 145 if (d == t6iov_pciids[i].device) { 146 device_set_desc(dev, t6iov_pciids[i].desc); 147 device_quiet(dev); 148 return (BUS_PROBE_DEFAULT); 149 } 150 } 151 return (ENXIO); 152 } 153 154 static int 155 t4iov_attach(device_t dev) 156 { 157 struct t4iov_softc *sc; 158 159 sc = device_get_softc(dev); 160 sc->sc_dev = dev; 161 162 sc->sc_main = pci_find_dbsf(pci_get_domain(dev), pci_get_bus(dev), 163 pci_get_slot(dev), 4); 164 if (T4_IS_MAIN_READY(sc->sc_main) == 0) 165 return (t4iov_attach_child(dev)); 166 return (0); 167 } 168 169 static int 170 t4iov_attach_child(device_t dev) 171 { 172 struct t4iov_softc *sc; 173 #ifdef PCI_IOV 174 nvlist_t *pf_schema, *vf_schema; 175 #endif 176 device_t pdev; 177 int error; 178 179 sc = device_get_softc(dev); 180 MPASS(!sc->sc_attached); 181 182 /* 183 * PF0-3 are associated with a specific port on the NIC (PF0 184 * with port 0, etc.). Ask the PF4 driver for the device for 185 * this function's associated port to determine if the port is 186 * present. 187 */ 188 error = T4_READ_PORT_DEVICE(sc->sc_main, pci_get_function(dev), &pdev); 189 if (error) 190 return (0); 191 192 #ifdef PCI_IOV 193 pf_schema = pci_iov_schema_alloc_node(); 194 vf_schema = pci_iov_schema_alloc_node(); 195 error = pci_iov_attach_name(dev, pf_schema, vf_schema, "%s", 196 device_get_nameunit(pdev)); 197 if (error) { 198 device_printf(dev, "Failed to initialize SR-IOV: %d\n", error); 199 return (0); 200 } 201 #endif 202 203 sc->sc_attached = true; 204 return (0); 205 } 206 207 static int 208 t4iov_detach_child(device_t dev) 209 { 210 struct t4iov_softc *sc; 211 #ifdef PCI_IOV 212 int error; 213 #endif 214 215 sc = device_get_softc(dev); 216 if (!sc->sc_attached) 217 return (0); 218 219 #ifdef PCI_IOV 220 error = pci_iov_detach(dev); 221 if (error != 0) { 222 device_printf(dev, "Failed to disable SR-IOV\n"); 223 return (error); 224 } 225 #endif 226 227 sc->sc_attached = false; 228 return (0); 229 } 230 231 static int 232 t4iov_detach(device_t dev) 233 { 234 struct t4iov_softc *sc; 235 int error; 236 237 sc = device_get_softc(dev); 238 if (sc->sc_attached) { 239 error = t4iov_detach_child(dev); 240 if (error) 241 return (error); 242 } 243 return (0); 244 } 245 246 #ifdef PCI_IOV 247 static int 248 t4iov_iov_init(device_t dev, uint16_t num_vfs, const struct nvlist *config) 249 { 250 251 /* XXX: The Linux driver sets up a vf_monitor task on T4 adapters. */ 252 return (0); 253 } 254 255 static void 256 t4iov_iov_uninit(device_t dev) 257 { 258 } 259 260 static int 261 t4iov_add_vf(device_t dev, uint16_t vfnum, const struct nvlist *config) 262 { 263 264 return (0); 265 } 266 #endif 267 268 static device_method_t t4iov_methods[] = { 269 DEVMETHOD(device_probe, t4iov_probe), 270 DEVMETHOD(device_attach, t4iov_attach), 271 DEVMETHOD(device_detach, t4iov_detach), 272 273 #ifdef PCI_IOV 274 DEVMETHOD(pci_iov_init, t4iov_iov_init), 275 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 276 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 277 #endif 278 279 DEVMETHOD(t4_attach_child, t4iov_attach_child), 280 DEVMETHOD(t4_detach_child, t4iov_detach_child), 281 282 DEVMETHOD_END 283 }; 284 285 static driver_t t4iov_driver = { 286 "t4iov", 287 t4iov_methods, 288 sizeof(struct t4iov_softc) 289 }; 290 291 static device_method_t t5iov_methods[] = { 292 DEVMETHOD(device_probe, t5iov_probe), 293 DEVMETHOD(device_attach, t4iov_attach), 294 DEVMETHOD(device_detach, t4iov_detach), 295 296 #ifdef PCI_IOV 297 DEVMETHOD(pci_iov_init, t4iov_iov_init), 298 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 299 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 300 #endif 301 302 DEVMETHOD(t4_attach_child, t4iov_attach_child), 303 DEVMETHOD(t4_detach_child, t4iov_detach_child), 304 305 DEVMETHOD_END 306 }; 307 308 static driver_t t5iov_driver = { 309 "t5iov", 310 t5iov_methods, 311 sizeof(struct t4iov_softc) 312 }; 313 314 static device_method_t t6iov_methods[] = { 315 DEVMETHOD(device_probe, t6iov_probe), 316 DEVMETHOD(device_attach, t4iov_attach), 317 DEVMETHOD(device_detach, t4iov_detach), 318 319 #ifdef PCI_IOV 320 DEVMETHOD(pci_iov_init, t4iov_iov_init), 321 DEVMETHOD(pci_iov_uninit, t4iov_iov_uninit), 322 DEVMETHOD(pci_iov_add_vf, t4iov_add_vf), 323 #endif 324 325 DEVMETHOD(t4_attach_child, t4iov_attach_child), 326 DEVMETHOD(t4_detach_child, t4iov_detach_child), 327 328 DEVMETHOD_END 329 }; 330 331 static driver_t t6iov_driver = { 332 "t6iov", 333 t6iov_methods, 334 sizeof(struct t4iov_softc) 335 }; 336 337 static devclass_t t4iov_devclass, t5iov_devclass, t6iov_devclass; 338 339 DRIVER_MODULE(t4iov, pci, t4iov_driver, t4iov_devclass, 0, 0); 340 MODULE_VERSION(t4iov, 1); 341 342 DRIVER_MODULE(t5iov, pci, t5iov_driver, t5iov_devclass, 0, 0); 343 MODULE_VERSION(t5iov, 1); 344 345 DRIVER_MODULE(t6iov, pci, t6iov_driver, t6iov_devclass, 0, 0); 346 MODULE_VERSION(t6iov, 1); 347