if_re_pci.c revision 1.44
1 /* $NetBSD: if_re_pci.c,v 1.44 2015/05/03 00:04:06 matt 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 1.44 2015/05/03 00:04:06 matt Exp $"); 50 51 #include <sys/types.h> 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/device.h> 56 57 #include <net/if.h> 58 #include <net/if_ether.h> 59 #include <net/if_media.h> 60 61 #include <sys/bus.h> 62 63 #include <dev/mii/mii.h> 64 #include <dev/mii/miivar.h> 65 66 #include <dev/pci/pcireg.h> 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/pcidevs.h> 69 70 #include <dev/ic/rtl81x9reg.h> 71 #include <dev/ic/rtl81x9var.h> 72 #include <dev/ic/rtl8169var.h> 73 74 struct re_pci_softc { 75 struct rtk_softc sc_rtk; 76 77 void *sc_ih; 78 pci_chipset_tag_t sc_pc; 79 }; 80 81 static int re_pci_match(device_t, cfdata_t, void *); 82 static void re_pci_attach(device_t, device_t, void *); 83 static int re_pci_detach(device_t, int); 84 85 CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc), 86 re_pci_match, re_pci_attach, re_pci_detach, NULL); 87 88 /* 89 * Various supported device vendors/types and their names. 90 */ 91 static const struct rtk_type re_devs[] = { 92 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 93 RTK_8139CPLUS, 94 "RealTek 8139C+ 10/100BaseTX" }, 95 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, 96 RTK_8101E, 97 "RealTek 8100E/8101E/8102E/8102EL PCIe 10/100BaseTX" }, 98 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, 99 RTK_8168, 100 "RealTek 8168/8111 PCIe Gigabit Ethernet" }, 101 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, 102 RTK_8169, 103 "RealTek 8169/8110 Gigabit Ethernet" }, 104 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, 105 RTK_8169, 106 "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, 107 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, 108 RTK_8169, 109 "Corega CG-LAPCIGT Gigabit Ethernet" }, 110 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, 111 RTK_8169, 112 "D-Link DGE-528T Gigabit Ethernet" }, 113 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, 114 RTK_8169, 115 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 116 { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, 117 RTK_8169, 118 "Linksys EG1032 rev. 3 Gigabit Ethernet" }, 119 }; 120 121 static const struct rtk_type * 122 re_pci_lookup(const struct pci_attach_args * pa) 123 { 124 int i; 125 126 for(i = 0; i < __arraycount(re_devs); i++) { 127 if (PCI_VENDOR(pa->pa_id) != re_devs[i].rtk_vid) 128 continue; 129 if (PCI_PRODUCT(pa->pa_id) == re_devs[i].rtk_did) 130 return &re_devs[i]; 131 } 132 133 return NULL; 134 } 135 136 #define RE_LINKSYS_EG1032_SUBID 0x00241737 137 138 /* 139 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 140 * IDs against our list and return a device name if we find a match. 141 */ 142 static int 143 re_pci_match(device_t parent, cfdata_t cf, void *aux) 144 { 145 struct pci_attach_args *pa = aux; 146 pcireg_t subid; 147 148 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 149 150 /* special-case Linksys EG1032, since rev 2 uses sk(4) */ 151 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 152 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { 153 if (subid != RE_LINKSYS_EG1032_SUBID) 154 return 0; 155 } 156 157 /* Don't match 8139 other than C-PLUS */ 158 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 159 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { 160 if (PCI_REVISION(pa->pa_class) != 0x20) 161 return 0; 162 } 163 164 if (re_pci_lookup(pa) != NULL) 165 return 2; /* defeat rtk(4) */ 166 167 return 0; 168 } 169 170 static void 171 re_pci_attach(device_t parent, device_t self, void *aux) 172 { 173 struct re_pci_softc *psc = device_private(self); 174 struct rtk_softc *sc = &psc->sc_rtk; 175 struct pci_attach_args *pa = aux; 176 pci_chipset_tag_t pc = pa->pa_pc; 177 pci_intr_handle_t ih; 178 const char *intrstr = NULL; 179 const struct rtk_type *t; 180 uint32_t hwrev; 181 pcireg_t command, memtype; 182 bool ioh_valid, memh_valid; 183 bus_space_tag_t iot, memt; 184 bus_space_handle_t ioh, memh; 185 bus_size_t iosize, memsize; 186 char intrbuf[PCI_INTRSTR_LEN]; 187 188 sc->sc_dev = self; 189 psc->sc_pc = pa->pa_pc; 190 191 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 192 command |= PCI_COMMAND_MASTER_ENABLE; 193 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 194 195 /* 196 * Map control/status registers. 197 */ 198 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 199 &iot, &ioh, NULL, &iosize) == 0); 200 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); 201 switch (memtype) { 202 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 203 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 204 memh_valid = 205 (pci_mapreg_map(pa, RTK_PCI_LOMEM, 206 memtype, 0, &memt, &memh, NULL, &memsize) == 0) || 207 (pci_mapreg_map(pa, RTK_PCI_LOMEM + 4, 208 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT, 209 0, &memt, &memh, NULL, &memsize) == 0); 210 break; 211 default: 212 memh_valid = 0; 213 break; 214 } 215 216 if (ioh_valid) { 217 sc->rtk_btag = iot; 218 sc->rtk_bhandle = ioh; 219 sc->rtk_bsize = iosize; 220 if (memh_valid) 221 bus_space_unmap(memt, memh, memsize); 222 } else if (memh_valid) { 223 sc->rtk_btag = memt; 224 sc->rtk_bhandle = memh; 225 sc->rtk_bsize = memsize; 226 } else { 227 aprint_error(": can't map registers\n"); 228 return; 229 } 230 231 t = re_pci_lookup(pa); 232 KASSERT(t != NULL); 233 234 pci_aprint_devinfo_fancy(pa, NULL, t->rtk_name, 1); 235 236 if (t->rtk_basetype == RTK_8139CPLUS) 237 sc->sc_quirk |= RTKQ_8139CPLUS; 238 239 if (t->rtk_basetype == RTK_8168 || 240 t->rtk_basetype == RTK_8101E) 241 sc->sc_quirk |= RTKQ_PCIE; 242 243 if (pci_dma64_available(pa) && (sc->sc_quirk & RTKQ_PCIE)) 244 sc->sc_dmat = pa->pa_dmat64; 245 else 246 sc->sc_dmat = pa->pa_dmat; 247 248 /* 249 * No power/enable/disable machinery for PCI attach; 250 * mark the card enabled now. 251 */ 252 sc->sc_flags |= RTK_ENABLED; 253 254 /* Hook interrupt last to avoid having to lock softc */ 255 /* Allocate interrupt */ 256 if (pci_intr_map(pa, &ih)) { 257 aprint_error_dev(self, "couldn't map interrupt\n"); 258 return; 259 } 260 intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); 261 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 262 if (psc->sc_ih == NULL) { 263 aprint_error_dev(self, "couldn't establish interrupt"); 264 if (intrstr != NULL) 265 aprint_error(" at %s", intrstr); 266 aprint_error("\n"); 267 return; 268 } 269 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 270 271 re_attach(sc); 272 273 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 274 275 /* 276 * Perform hardware diagnostic on the original RTL8169. 277 * Some 32-bit cards were incorrectly wired and would 278 * malfunction if plugged into a 64-bit slot. 279 */ 280 if (hwrev == RTK_HWREV_8169) { 281 if (re_diag(sc)) { 282 re_pci_detach(self, 0); 283 aprint_error_dev(self, "disabled\n"); 284 } 285 } 286 } 287 288 static int 289 re_pci_detach(device_t self, int flags) 290 { 291 struct re_pci_softc *psc = device_private(self); 292 struct rtk_softc *sc = &psc->sc_rtk; 293 int rv; 294 295 if ((sc->sc_flags & RTK_ATTACHED) != 0) 296 /* re_stop() */ 297 sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0); 298 299 rv = re_detach(sc); 300 if (rv) 301 return rv; 302 303 if (psc->sc_ih != NULL) { 304 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 305 psc->sc_ih = NULL; 306 } 307 308 if (sc->rtk_bsize != 0) { 309 bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize); 310 sc->rtk_bsize = 0; 311 } 312 313 return 0; 314 } 315
Indexes created Tue Oct 28 12:10:06 GMT 2025