if_re_pci.c revision 1.23.2.3
1 /* $NetBSD: if_re_pci.c,v 1.23.2.3 2007/03/24 14:55:31 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 #include <dev/ic/rtl81x9reg.h> 80 #include <dev/ic/rtl81x9var.h> 81 #include <dev/ic/rtl8169var.h> 82 83 struct re_pci_softc { 84 struct rtk_softc sc_rtk; 85 86 void *sc_ih; 87 pci_chipset_tag_t sc_pc; 88 pcitag_t sc_pcitag; 89 }; 90 91 static int re_pci_match(struct device *, struct cfdata *, void *); 92 static void re_pci_attach(struct device *, struct device *, void *); 93 94 /* 95 * Various supported device vendors/types and their names. 96 */ 97 static const struct rtk_type re_devs[] = { 98 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 99 RTK_8139CPLUS, 100 "RealTek 8139C+ 10/100BaseTX" }, 101 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, 102 RTK_8101E, 103 "RealTek 8100E/8101E PCIe 10/100BaseTX" }, 104 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, 105 RTK_8168, 106 "RealTek 8168B/8111B PCIe Gigabit Ethernet" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, 108 RTK_8169, 109 "RealTek 8169/8110 Gigabit Ethernet" }, 110 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, 111 RTK_8169, 112 "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, 113 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, 114 RTK_8169, 115 "Corega CG-LAPCIGT Gigabit Ethernet" }, 116 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, 117 RTK_8169, 118 "D-Link DGE-528T Gigabit Ethernet" }, 119 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, 120 RTK_8169, 121 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 122 { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, 123 RTK_8169, 124 "Linksys EG1032 rev. 3 Gigabit Ethernet" }, 125 { 0, 0, 0, NULL } 126 }; 127 128 #define RE_LINKSYS_EG1032_SUBID 0x00241737 129 130 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_match, re_pci_attach, 131 NULL, NULL); 132 133 /* 134 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 135 * IDs against our list and return a device name if we find a match. 136 */ 137 static int 138 re_pci_match(struct device *parent, struct cfdata *match, void *aux) 139 { 140 const struct rtk_type *t; 141 struct pci_attach_args *pa = aux; 142 pcireg_t subid; 143 144 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 145 146 /* special-case Linksys EG1032, since rev 2 uses sk(4) */ 147 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 148 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { 149 if (subid != RE_LINKSYS_EG1032_SUBID) 150 return 0; 151 } 152 /* Don't match 8139 other than C-PLUS */ 153 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 154 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { 155 if (PCI_REVISION(pa->pa_class) != 0x20) 156 return 0; 157 } 158 159 t = re_devs; 160 161 while (t->rtk_name != NULL) { 162 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 163 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 164 return 2; /* defect rtk(4) */ 165 } 166 t++; 167 } 168 169 return 0; 170 } 171 172 static void 173 re_pci_attach(struct device *parent, struct device *self, void *aux) 174 { 175 struct re_pci_softc *psc = (void *)self; 176 struct rtk_softc *sc = &psc->sc_rtk; 177 struct pci_attach_args *pa = aux; 178 pci_chipset_tag_t pc = pa->pa_pc; 179 pci_intr_handle_t ih; 180 const char *intrstr = NULL; 181 const struct rtk_type *t; 182 uint32_t hwrev; 183 int error = 0; 184 pcireg_t pmreg, memtype; 185 bool ioh_valid, memh_valid; 186 pcireg_t command; 187 bus_space_tag_t iot, memt; 188 bus_space_handle_t ioh, memh; 189 bus_size_t iosize, memsize, bsize; 190 191 192 /* 193 * Handle power management nonsense. 194 */ 195 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 196 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 197 if (command & PCI_PMCSR_STATE_MASK) { 198 u_int32_t iobase, membase, irq; 199 200 /* Save important PCI config data. */ 201 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 202 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 203 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 204 205 /* Reset the power state. */ 206 aprint_normal("%s: chip is is in D%d power mode " 207 "-- setting to D0\n", sc->sc_dev.dv_xname, 208 command & PCI_PMCSR_STATE_MASK); 209 210 command &= ~PCI_PMCSR_STATE_MASK; 211 pci_conf_write(pc, pa->pa_tag, 212 pmreg + PCI_PMCSR, command); 213 214 /* Restore PCI config data. */ 215 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 216 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 217 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 218 } 219 } 220 221 /* 222 * Map control/status registers. 223 */ 224 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 225 command |= PCI_COMMAND_MASTER_ENABLE; 226 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 227 228 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 229 &iot, &ioh, NULL, &iosize) == 0); 230 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); 231 switch (memtype) { 232 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 233 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 234 memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, 235 memtype, 0, &memt, &memh, NULL, &memsize) == 0); 236 break; 237 default: 238 memh_valid = 0; 239 break; 240 } 241 242 if (ioh_valid) { 243 sc->rtk_btag = iot; 244 sc->rtk_bhandle = ioh; 245 bsize = iosize; 246 } else if (memh_valid) { 247 sc->rtk_btag = memt; 248 sc->rtk_bhandle = memh; 249 bsize = memsize; 250 } else { 251 aprint_error("%s: can't map registers\n", sc->sc_dev.dv_xname); 252 return; 253 } 254 255 t = re_devs; 256 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 257 258 while (t->rtk_name != NULL) { 259 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 260 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 261 break; 262 } 263 t++; 264 } 265 266 if (t->rtk_basetype == RTK_8139CPLUS) 267 sc->sc_quirk |= RTKQ_8139CPLUS; 268 269 if (t->rtk_basetype == RTK_8168 || 270 t->rtk_basetype == RTK_8101E) 271 sc->sc_quirk |= RTKQ_PCIE; 272 273 aprint_normal(": %s (rev. 0x%02x)\n", 274 t->rtk_name, PCI_REVISION(pa->pa_class)); 275 276 sc->sc_dmat = pa->pa_dmat; 277 278 /* 279 * No power/enable/disable machinery for PCI attac; 280 * mark the card enabled now. 281 */ 282 sc->sc_flags |= RTK_ENABLED; 283 284 /* Hook interrupt last to avoid having to lock softc */ 285 /* Allocate interrupt */ 286 if (pci_intr_map(pa, &ih)) { 287 aprint_error("%s: couldn't map interrupt\n", 288 sc->sc_dev.dv_xname); 289 return; 290 } 291 intrstr = pci_intr_string(pc, ih); 292 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 293 if (psc->sc_ih == NULL) { 294 aprint_error("%s: couldn't establish interrupt", 295 sc->sc_dev.dv_xname); 296 if (intrstr != NULL) 297 aprint_error(" at %s", intrstr); 298 aprint_error("\n"); 299 return; 300 } 301 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 302 303 re_attach(sc); 304 305 /* 306 * Perform hardware diagnostic on the original RTL8169. 307 * Some 32-bit cards were incorrectly wired and would 308 * malfunction if plugged into a 64-bit slot. 309 */ 310 if (hwrev == RTK_HWREV_8169) { 311 error = re_diag(sc); 312 if (error) { 313 aprint_error( 314 "%s: attach aborted due to hardware diag failure\n", 315 sc->sc_dev.dv_xname); 316 317 re_detach(sc); 318 319 if (psc->sc_ih != NULL) { 320 pci_intr_disestablish(pc, psc->sc_ih); 321 psc->sc_ih = NULL; 322 } 323 324 if (ioh_valid) 325 bus_space_unmap(iot, ioh, iosize); 326 if (memh_valid) 327 bus_space_unmap(memt, memh, memsize); 328 } 329 } 330 } 331
Indexes created Tue Oct 28 12:10:06 GMT 2025