if_re_pci.c revision 1.33
1 /* $NetBSD: if_re_pci.c,v 1.33 2008/04/10 19:13:37 cegger 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 __KERNEL_RCSID(0, "$NetBSD: if_re_pci.c,v 1.33 2008/04/10 19:13:37 cegger Exp $"); 50 51 #include "bpfilter.h" 52 #include "vlan.h" 53 54 #include <sys/types.h> 55 56 #include <sys/param.h> 57 #include <sys/endian.h> 58 #include <sys/systm.h> 59 #include <sys/sockio.h> 60 #include <sys/mbuf.h> 61 #include <sys/malloc.h> 62 #include <sys/kernel.h> 63 #include <sys/socket.h> 64 #include <sys/device.h> 65 66 #include <net/if.h> 67 #include <net/if_arp.h> 68 #include <net/if_dl.h> 69 #include <net/if_ether.h> 70 #include <net/if_media.h> 71 #include <net/if_vlanvar.h> 72 73 #include <sys/bus.h> 74 75 #include <dev/mii/mii.h> 76 #include <dev/mii/miivar.h> 77 78 #include <dev/pci/pcireg.h> 79 #include <dev/pci/pcivar.h> 80 #include <dev/pci/pcidevs.h> 81 82 #include <dev/ic/rtl81x9reg.h> 83 #include <dev/ic/rtl81x9var.h> 84 #include <dev/ic/rtl8169var.h> 85 86 struct re_pci_softc { 87 struct rtk_softc sc_rtk; 88 89 void *sc_ih; 90 pci_chipset_tag_t sc_pc; 91 pcitag_t sc_pcitag; 92 }; 93 94 static int re_pci_match(struct device *, struct cfdata *, void *); 95 static void re_pci_attach(struct device *, struct device *, void *); 96 97 /* 98 * Various supported device vendors/types and their names. 99 */ 100 static const struct rtk_type re_devs[] = { 101 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 102 RTK_8139CPLUS, 103 "RealTek 8139C+ 10/100BaseTX" }, 104 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, 105 RTK_8101E, 106 "RealTek 8100E/8101E PCIe 10/100BaseTX" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, 108 RTK_8168, 109 "RealTek 8168B/8111B PCIe Gigabit Ethernet" }, 110 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, 111 RTK_8169, 112 "RealTek 8169/8110 Gigabit Ethernet" }, 113 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, 114 RTK_8169, 115 "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, 116 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, 117 RTK_8169, 118 "Corega CG-LAPCIGT Gigabit Ethernet" }, 119 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, 120 RTK_8169, 121 "D-Link DGE-528T Gigabit Ethernet" }, 122 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, 123 RTK_8169, 124 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 125 { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, 126 RTK_8169, 127 "Linksys EG1032 rev. 3 Gigabit Ethernet" }, 128 { 0, 0, 0, NULL } 129 }; 130 131 #define RE_LINKSYS_EG1032_SUBID 0x00241737 132 133 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_match, re_pci_attach, 134 NULL, NULL); 135 136 /* 137 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 138 * IDs against our list and return a device name if we find a match. 139 */ 140 static int 141 re_pci_match(struct device *parent, struct cfdata *match, void *aux) 142 { 143 const struct rtk_type *t; 144 struct pci_attach_args *pa = aux; 145 pcireg_t subid; 146 147 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 148 149 /* special-case Linksys EG1032, since rev 2 uses sk(4) */ 150 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 151 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { 152 if (subid != RE_LINKSYS_EG1032_SUBID) 153 return 0; 154 } 155 /* Don't match 8139 other than C-PLUS */ 156 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 157 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { 158 if (PCI_REVISION(pa->pa_class) != 0x20) 159 return 0; 160 } 161 162 t = re_devs; 163 164 while (t->rtk_name != NULL) { 165 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 166 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 167 return 2; /* defect rtk(4) */ 168 } 169 t++; 170 } 171 172 return 0; 173 } 174 175 static void 176 re_pci_attach(struct device *parent, struct device *self, void *aux) 177 { 178 struct re_pci_softc *psc = (void *)self; 179 struct rtk_softc *sc = &psc->sc_rtk; 180 struct pci_attach_args *pa = aux; 181 pci_chipset_tag_t pc = pa->pa_pc; 182 pci_intr_handle_t ih; 183 const char *intrstr = NULL; 184 const struct rtk_type *t; 185 uint32_t hwrev; 186 int error = 0; 187 pcireg_t memtype; 188 bool ioh_valid, memh_valid; 189 pcireg_t command; 190 bus_space_tag_t iot, memt; 191 bus_space_handle_t ioh, memh; 192 bus_size_t iosize, memsize, bsize; 193 194 /* 195 * Map control/status registers. 196 */ 197 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 198 command |= PCI_COMMAND_MASTER_ENABLE; 199 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 200 201 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 202 &iot, &ioh, NULL, &iosize) == 0); 203 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); 204 switch (memtype) { 205 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 206 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 207 memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, 208 memtype, 0, &memt, &memh, NULL, &memsize) == 0); 209 break; 210 default: 211 memh_valid = 0; 212 break; 213 } 214 215 if (ioh_valid) { 216 sc->rtk_btag = iot; 217 sc->rtk_bhandle = ioh; 218 bsize = iosize; 219 } else if (memh_valid) { 220 sc->rtk_btag = memt; 221 sc->rtk_bhandle = memh; 222 bsize = memsize; 223 } else { 224 aprint_error_dev(&sc->sc_dev, "can't map registers\n"); 225 return; 226 } 227 228 t = re_devs; 229 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 230 231 while (t->rtk_name != NULL) { 232 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 233 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 234 break; 235 } 236 t++; 237 } 238 239 if (t->rtk_basetype == RTK_8139CPLUS) 240 sc->sc_quirk |= RTKQ_8139CPLUS; 241 242 if (t->rtk_basetype == RTK_8168 || 243 t->rtk_basetype == RTK_8101E) 244 sc->sc_quirk |= RTKQ_PCIE; 245 246 aprint_normal(": %s (rev. 0x%02x)\n", 247 t->rtk_name, PCI_REVISION(pa->pa_class)); 248 249 sc->sc_dmat = pa->pa_dmat; 250 251 /* 252 * No power/enable/disable machinery for PCI attach; 253 * mark the card enabled now. 254 */ 255 sc->sc_flags |= RTK_ENABLED; 256 257 /* Hook interrupt last to avoid having to lock softc */ 258 /* Allocate interrupt */ 259 if (pci_intr_map(pa, &ih)) { 260 aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n"); 261 return; 262 } 263 intrstr = pci_intr_string(pc, ih); 264 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 265 if (psc->sc_ih == NULL) { 266 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt"); 267 if (intrstr != NULL) 268 aprint_error(" at %s", intrstr); 269 aprint_error("\n"); 270 return; 271 } 272 aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr); 273 274 re_attach(sc); 275 276 /* 277 * Perform hardware diagnostic on the original RTL8169. 278 * Some 32-bit cards were incorrectly wired and would 279 * malfunction if plugged into a 64-bit slot. 280 */ 281 if (hwrev == RTK_HWREV_8169) { 282 error = re_diag(sc); 283 if (error) { 284 aprint_error_dev(&sc->sc_dev, 285 "attach aborted due to hardware diag failure\n"); 286 287 re_detach(sc); 288 289 if (psc->sc_ih != NULL) { 290 pci_intr_disestablish(pc, psc->sc_ih); 291 psc->sc_ih = NULL; 292 } 293 294 if (ioh_valid) 295 bus_space_unmap(iot, ioh, iosize); 296 if (memh_valid) 297 bus_space_unmap(memt, memh, memsize); 298 } 299 } 300 301 if (!pmf_device_register(self, NULL, NULL)) 302 aprint_error_dev(self, "couldn't establish power handler\n"); 303 else 304 pmf_class_network_register(self, &sc->ethercom.ec_if); 305 } 306
Indexes created Tue Oct 28 12:10:06 GMT 2025