if_re_pci.c revision 1.26.2.2
1 /* $NetBSD: if_re_pci.c,v 1.26.2.2 2007/08/20 18:37:14 ad 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 <sys/cdefs.h> 49 50 #include "bpfilter.h" 51 #include "vlan.h" 52 53 #include <sys/types.h> 54 55 #include <sys/param.h> 56 #include <sys/endian.h> 57 #include <sys/systm.h> 58 #include <sys/sockio.h> 59 #include <sys/mbuf.h> 60 #include <sys/malloc.h> 61 #include <sys/kernel.h> 62 #include <sys/socket.h> 63 #include <sys/device.h> 64 65 #include <net/if.h> 66 #include <net/if_arp.h> 67 #include <net/if_dl.h> 68 #include <net/if_ether.h> 69 #include <net/if_media.h> 70 #include <net/if_vlanvar.h> 71 72 #include <machine/bus.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 77 #include <dev/pci/pcireg.h> 78 #include <dev/pci/pcivar.h> 79 #include <dev/pci/pcidevs.h> 80 81 #include <dev/ic/rtl81x9reg.h> 82 #include <dev/ic/rtl81x9var.h> 83 #include <dev/ic/rtl8169var.h> 84 85 struct re_pci_softc { 86 struct rtk_softc sc_rtk; 87 88 void *sc_ih; 89 pci_chipset_tag_t sc_pc; 90 pcitag_t sc_pcitag; 91 }; 92 93 static int re_pci_match(struct device *, struct cfdata *, void *); 94 static void re_pci_attach(struct device *, struct device *, void *); 95 96 /* 97 * Various supported device vendors/types and their names. 98 */ 99 static const struct rtk_type re_devs[] = { 100 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 101 RTK_8139CPLUS, 102 "RealTek 8139C+ 10/100BaseTX" }, 103 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, 104 RTK_8101E, 105 "RealTek 8100E/8101E PCIe 10/100BaseTX" }, 106 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, 107 RTK_8168, 108 "RealTek 8168B/8111B PCIe Gigabit Ethernet" }, 109 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, 110 RTK_8169, 111 "RealTek 8169/8110 Gigabit Ethernet" }, 112 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, 113 RTK_8169, 114 "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, 115 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, 116 RTK_8169, 117 "Corega CG-LAPCIGT Gigabit Ethernet" }, 118 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, 119 RTK_8169, 120 "D-Link DGE-528T Gigabit Ethernet" }, 121 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, 122 RTK_8169, 123 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 124 { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, 125 RTK_8169, 126 "Linksys EG1032 rev. 3 Gigabit Ethernet" }, 127 { 0, 0, 0, NULL } 128 }; 129 130 #define RE_LINKSYS_EG1032_SUBID 0x00241737 131 132 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_match, re_pci_attach, 133 NULL, NULL); 134 135 /* 136 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 137 * IDs against our list and return a device name if we find a match. 138 */ 139 static int 140 re_pci_match(struct device *parent, struct cfdata *match, void *aux) 141 { 142 const struct rtk_type *t; 143 struct pci_attach_args *pa = aux; 144 pcireg_t subid; 145 146 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 147 148 /* special-case Linksys EG1032, since rev 2 uses sk(4) */ 149 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 150 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { 151 if (subid != RE_LINKSYS_EG1032_SUBID) 152 return 0; 153 } 154 /* Don't match 8139 other than C-PLUS */ 155 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 156 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { 157 if (PCI_REVISION(pa->pa_class) != 0x20) 158 return 0; 159 } 160 161 t = re_devs; 162 163 while (t->rtk_name != NULL) { 164 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 165 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 166 return 2; /* defect rtk(4) */ 167 } 168 t++; 169 } 170 171 return 0; 172 } 173 174 static void 175 re_pci_attach(struct device *parent, struct device *self, void *aux) 176 { 177 struct re_pci_softc *psc = (void *)self; 178 struct rtk_softc *sc = &psc->sc_rtk; 179 struct pci_attach_args *pa = aux; 180 pci_chipset_tag_t pc = pa->pa_pc; 181 pci_intr_handle_t ih; 182 const char *intrstr = NULL; 183 const struct rtk_type *t; 184 uint32_t hwrev; 185 int error = 0; 186 pcireg_t pmreg, memtype; 187 bool ioh_valid, memh_valid; 188 pcireg_t command; 189 bus_space_tag_t iot, memt; 190 bus_space_handle_t ioh, memh; 191 bus_size_t iosize, memsize, bsize; 192 193 194 /* 195 * Handle power management nonsense. 196 */ 197 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 198 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 199 if (command & PCI_PMCSR_STATE_MASK) { 200 u_int32_t iobase, membase, irq; 201 202 /* Save important PCI config data. */ 203 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 204 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 205 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 206 207 /* Reset the power state. */ 208 aprint_normal("%s: chip is is in D%d power mode " 209 "-- setting to D0\n", sc->sc_dev.dv_xname, 210 command & PCI_PMCSR_STATE_MASK); 211 212 command &= ~PCI_PMCSR_STATE_MASK; 213 pci_conf_write(pc, pa->pa_tag, 214 pmreg + PCI_PMCSR, command); 215 216 /* Restore PCI config data. */ 217 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 218 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 219 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 220 } 221 } 222 223 /* 224 * Map control/status registers. 225 */ 226 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 227 command |= PCI_COMMAND_MASTER_ENABLE; 228 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 229 230 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 231 &iot, &ioh, NULL, &iosize) == 0); 232 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); 233 switch (memtype) { 234 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 235 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 236 memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, 237 memtype, 0, &memt, &memh, NULL, &memsize) == 0); 238 break; 239 default: 240 memh_valid = 0; 241 break; 242 } 243 244 if (ioh_valid) { 245 sc->rtk_btag = iot; 246 sc->rtk_bhandle = ioh; 247 bsize = iosize; 248 } else if (memh_valid) { 249 sc->rtk_btag = memt; 250 sc->rtk_bhandle = memh; 251 bsize = memsize; 252 } else { 253 aprint_error("%s: can't map registers\n", sc->sc_dev.dv_xname); 254 return; 255 } 256 257 t = re_devs; 258 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 259 260 while (t->rtk_name != NULL) { 261 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 262 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 263 break; 264 } 265 t++; 266 } 267 268 if (t->rtk_basetype == RTK_8139CPLUS) 269 sc->sc_quirk |= RTKQ_8139CPLUS; 270 271 if (t->rtk_basetype == RTK_8168 || 272 t->rtk_basetype == RTK_8101E) 273 sc->sc_quirk |= RTKQ_PCIE; 274 275 aprint_normal(": %s (rev. 0x%02x)\n", 276 t->rtk_name, PCI_REVISION(pa->pa_class)); 277 278 sc->sc_dmat = pa->pa_dmat; 279 280 /* 281 * No power/enable/disable machinery for PCI attach; 282 * mark the card enabled now. 283 */ 284 sc->sc_flags |= RTK_ENABLED; 285 286 /* Hook interrupt last to avoid having to lock softc */ 287 /* Allocate interrupt */ 288 if (pci_intr_map(pa, &ih)) { 289 aprint_error("%s: couldn't map interrupt\n", 290 sc->sc_dev.dv_xname); 291 return; 292 } 293 intrstr = pci_intr_string(pc, ih); 294 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 295 if (psc->sc_ih == NULL) { 296 aprint_error("%s: couldn't establish interrupt", 297 sc->sc_dev.dv_xname); 298 if (intrstr != NULL) 299 aprint_error(" at %s", intrstr); 300 aprint_error("\n"); 301 return; 302 } 303 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 304 305 re_attach(sc); 306 307 /* 308 * Perform hardware diagnostic on the original RTL8169. 309 * Some 32-bit cards were incorrectly wired and would 310 * malfunction if plugged into a 64-bit slot. 311 */ 312 if (hwrev == RTK_HWREV_8169) { 313 error = re_diag(sc); 314 if (error) { 315 aprint_error( 316 "%s: attach aborted due to hardware diag failure\n", 317 sc->sc_dev.dv_xname); 318 319 re_detach(sc); 320 321 if (psc->sc_ih != NULL) { 322 pci_intr_disestablish(pc, psc->sc_ih); 323 psc->sc_ih = NULL; 324 } 325 326 if (ioh_valid) 327 bus_space_unmap(iot, ioh, iosize); 328 if (memh_valid) 329 bus_space_unmap(memt, memh, memsize); 330 } 331 } 332 } 333
Indexes created Tue Oct 28 12:10:06 GMT 2025