if_re_pci.c revision 1.12.8.2
1 /* $NetBSD: if_re_pci.c,v 1.12.8.2 2006/06/26 12:51:21 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998-2003 5 * Bill Paul <wpaul (at) windriver.com>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */ 36 37 /* 38 * RealTek 8139C+/8169/8169S/8110S PCI NIC driver 39 * 40 * Written by Bill Paul <wpaul (at) windriver.com> 41 * Senior Networking Software Engineer 42 * Wind River Systems 43 * 44 * Netbsd bus-specific frontends for written by 45 * Jonathan Stone <jonathan (at) netbsd.org> 46 */ 47 48 #include "bpfilter.h" 49 #include "vlan.h" 50 51 #include <sys/types.h> 52 53 #include <sys/param.h> 54 #include <sys/endian.h> 55 #include <sys/systm.h> 56 #include <sys/sockio.h> 57 #include <sys/mbuf.h> 58 #include <sys/malloc.h> 59 #include <sys/kernel.h> 60 #include <sys/socket.h> 61 #include <sys/device.h> 62 63 #include <net/if.h> 64 #include <net/if_arp.h> 65 #include <net/if_dl.h> 66 #include <net/if_ether.h> 67 #include <net/if_media.h> 68 #include <net/if_vlanvar.h> 69 70 #include <machine/bus.h> 71 72 #include <dev/mii/mii.h> 73 #include <dev/mii/miivar.h> 74 75 #include <dev/pci/pcireg.h> 76 #include <dev/pci/pcivar.h> 77 #include <dev/pci/pcidevs.h> 78 79 /* 80 * Default to using PIO access for this driver. 81 */ 82 /*#define RE_USEIOSPACE */ 83 #undef RE_USEIOSPACE 84 85 #include <dev/ic/rtl81x9reg.h> 86 #include <dev/ic/rtl81x9var.h> 87 #include <dev/ic/rtl8169var.h> 88 89 struct re_pci_softc { 90 struct rtk_softc sc_rtk; 91 92 void *sc_ih; 93 pci_chipset_tag_t sc_pc; 94 pcitag_t sc_pcitag; 95 }; 96 97 static int re_pci_probe(struct device *, struct cfdata *, void *); 98 static void re_pci_attach(struct device *, struct device *, void *); 99 100 /* 101 * Various supported device vendors/types and their names. 102 */ 103 static const struct rtk_type re_devs[] = { 104 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_HWREV_8139CPLUS, 105 "RealTek 8139C+ 10/100BaseTX" }, 106 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, RTK_HWREV_8168, 107 "RealTek 8168B/8111B Gigabit Ethernet" }, 108 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169, 109 "RealTek 8169 Gigabit Ethernet" }, 110 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169S, 111 "RealTek 8169S Single-chip Gigabit Ethernet" }, 112 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169SB, 113 "RealTek 8169SB Single-chip Gigabit Ethernet" }, 114 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, RTK_HWREV_8169S, 115 "Corega CG-LAPCIGT Gigabit Ethernet" }, 116 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8110S, 117 "RealTek 8110S Single-chip Gigabit Ethernet" }, 118 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, RTK_HWREV_8169S, 119 "D-Link DGE-528T Gigabit Ethernet" }, 120 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, RTK_HWREV_8169S, 121 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 122 { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, RTK_HWREV_8169S, 123 "Linksys EG1032 rev. 3 Gigabit Ethernet" }, 124 { 0, 0, 0, NULL } 125 }; 126 127 static const struct rtk_hwrev re_hwrevs[] = { 128 { RTK_HWREV_8139, RTK_8139, "" }, 129 { RTK_HWREV_8139A, RTK_8139, "A" }, 130 { RTK_HWREV_8139AG, RTK_8139, "A-G" }, 131 { RTK_HWREV_8139B, RTK_8139, "B" }, 132 { RTK_HWREV_8130, RTK_8139, "8130" }, 133 { RTK_HWREV_8139C, RTK_8139, "C" }, 134 { RTK_HWREV_8139D, RTK_8139, "8139D/8100B/8100C" }, 135 { RTK_HWREV_8139CPLUS, RTK_8139CPLUS, "C+"}, 136 { RTK_HWREV_8168, RTK_8169, "8168B/8111B"}, 137 { RTK_HWREV_8169, RTK_8169, "8169"}, 138 { RTK_HWREV_8169S, RTK_8169, "8169S"}, 139 { RTK_HWREV_8169SB, RTK_8169, "8169SB"}, 140 { RTK_HWREV_8110S, RTK_8169, "8110S"}, 141 { RTK_HWREV_8100, RTK_8139, "8100"}, 142 { RTK_HWREV_8101, RTK_8139, "8101"}, 143 { 0, 0, NULL } 144 }; 145 146 #define RE_LINKSYS_EG1032_SUBID 0x00241737 147 148 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_probe, re_pci_attach, 149 NULL, NULL); 150 151 /* 152 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 153 * IDs against our list and return a device name if we find a match. 154 */ 155 static int 156 re_pci_probe(struct device *parent, struct cfdata *match, void *aux) 157 { 158 const struct rtk_type *t; 159 struct pci_attach_args *pa = aux; 160 bus_space_tag_t rtk_btag; 161 bus_space_handle_t rtk_bhandle; 162 bus_size_t bsize; 163 u_int32_t hwrev; 164 pcireg_t subid; 165 166 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 167 168 /* special-case Linksys EG1032, since rev 2 uses sk(4) */ 169 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 170 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032 && 171 subid == RE_LINKSYS_EG1032_SUBID) 172 return 1; 173 174 t = re_devs; 175 176 while (t->rtk_name != NULL) { 177 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 178 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 179 180 /* 181 * Temporarily map the I/O space 182 * so we can read the chip ID register. 183 */ 184 #ifdef RE_USEIOSPACE 185 if (pci_mapreg_map(pa, RTK_PCI_LOIO, 186 PCI_MAPREG_TYPE_IO, 0, &rtk_btag, 187 &rtk_bhandle, NULL, &bsize)) { 188 aprint_error("can't map i/o space\n"); 189 return 0; 190 } 191 #else 192 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, 193 PCI_MAPREG_TYPE_MEM, 0, &rtk_btag, 194 &rtk_bhandle, NULL, &bsize)) { 195 aprint_error("can't map mem space\n"); 196 return 0; 197 } 198 #endif 199 hwrev = bus_space_read_4(rtk_btag, rtk_bhandle, 200 RTK_TXCFG) & RTK_TXCFG_HWREV; 201 bus_space_unmap(rtk_btag, rtk_bhandle, bsize); 202 if (t->rtk_basetype == hwrev) 203 return 2; /* defeat rtk(4) */ 204 } 205 t++; 206 } 207 208 return 0; 209 } 210 211 static void 212 re_pci_attach(struct device *parent, struct device *self, void *aux) 213 { 214 struct re_pci_softc *psc = (void *)self; 215 struct rtk_softc *sc = &psc->sc_rtk; 216 struct pci_attach_args *pa = aux; 217 pci_chipset_tag_t pc = pa->pa_pc; 218 pci_intr_handle_t ih; 219 const char *intrstr = NULL; 220 const struct rtk_type *t; 221 const struct rtk_hwrev *hw_rev; 222 int hwrev; 223 int error = 0; 224 int pmreg; 225 pcireg_t command; 226 bus_size_t bsize; 227 228 229 /* 230 * Handle power management nonsense. 231 */ 232 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 233 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 234 if (command & RTK_PSTATE_MASK) { 235 u_int32_t iobase, membase, irq; 236 237 /* Save important PCI config data. */ 238 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 239 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 240 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 241 242 /* Reset the power state. */ 243 aprint_normal("%s: chip is is in D%d power mode " 244 "-- setting to D0\n", sc->sc_dev.dv_xname, 245 command & RTK_PSTATE_MASK); 246 247 command &= ~RTK_PSTATE_MASK; 248 pci_conf_write(pc, pa->pa_tag, 249 pmreg + PCI_PMCSR, command); 250 251 /* Restore PCI config data. */ 252 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 253 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 254 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 255 } 256 } 257 258 /* 259 * Map control/status registers. 260 */ 261 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 262 command |= PCI_COMMAND_MASTER_ENABLE; 263 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 264 265 #ifdef RE_USEIOSPACE 266 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 267 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 268 aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 269 return; 270 } 271 #else 272 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 273 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 274 aprint_error("%s: can't map mem space\n", sc->sc_dev.dv_xname); 275 return; 276 } 277 #endif 278 t = re_devs; 279 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 280 281 while (t->rtk_name != NULL) { 282 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 283 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 284 285 if (t->rtk_basetype == hwrev) 286 break; 287 } 288 t++; 289 } 290 aprint_normal(": %s\n", t->rtk_name); 291 292 hw_rev = re_hwrevs; 293 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 294 while (hw_rev->rtk_desc != NULL) { 295 if (hw_rev->rtk_rev == hwrev) { 296 sc->rtk_type = hw_rev->rtk_type; 297 break; 298 } 299 hw_rev++; 300 } 301 302 sc->sc_dmat = pa->pa_dmat; 303 304 /* 305 * No power/enable/disable machinery for PCI attac; 306 * mark the card enabled now. 307 */ 308 sc->sc_flags |= RTK_ENABLED; 309 310 /* Hook interrupt last to avoid having to lock softc */ 311 /* Allocate interrupt */ 312 if (pci_intr_map(pa, &ih)) { 313 aprint_error("%s: couldn't map interrupt\n", 314 sc->sc_dev.dv_xname); 315 return; 316 } 317 intrstr = pci_intr_string(pc, ih); 318 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 319 if (psc->sc_ih == NULL) { 320 aprint_error("%s: couldn't establish interrupt", 321 sc->sc_dev.dv_xname); 322 if (intrstr != NULL) 323 aprint_error(" at %s", intrstr); 324 aprint_error("\n"); 325 return; 326 } 327 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 328 329 re_attach(sc); 330 331 /* 332 * Perform hardware diagnostic. 333 * XXX: this diagnostic only makes sense for attachemnts with 64-bit 334 * busses: PCI, but not CardBus. 335 */ 336 error = re_diag(sc); 337 if (error) { 338 aprint_error( 339 "%s: attach aborted due to hardware diag failure\n", 340 sc->sc_dev.dv_xname); 341 342 re_detach(sc); 343 344 if (psc->sc_ih != NULL) { 345 pci_intr_disestablish(pc, psc->sc_ih); 346 psc->sc_ih = NULL; 347 } 348 349 if (bsize) 350 bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, bsize); 351 } 352 } 353
Indexes created Tue Oct 28 12:10:06 GMT 2025