| 1 | /* $NetBSD: if_re_pci.c,v 1.45 2015/12/14 20:01:17 jakllsch Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1997, 1998-2003 |
| 5 | * Bill Paul <wpaul@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@windriver.com> |
| 41 | * Senior Networking Software Engineer |
| 42 | * Wind River Systems |
| 43 | * |
| 44 | * NetBSD bus-specific frontends for written by |
| 45 | * Jonathan Stone <jonathan@netbsd.org> |
| 46 | */ |
| 47 | |
| 48 | #include <sys/cdefs.h> |
| 49 | __KERNEL_RCSID(0, "$NetBSD: if_re_pci.c,v 1.45 2015/12/14 20:01:17 jakllsch 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_intr_handle_t *sc_pihp; |
| 79 | pci_chipset_tag_t sc_pc; |
| 80 | }; |
| 81 | |
| 82 | static int re_pci_match(device_t, cfdata_t, void *); |
| 83 | static void re_pci_attach(device_t, device_t, void *); |
| 84 | static int re_pci_detach(device_t, int); |
| 85 | |
| 86 | CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc), |
| 87 | re_pci_match, re_pci_attach, re_pci_detach, NULL); |
| 88 | |
| 89 | /* |
| 90 | * Various supported device vendors/types and their names. |
| 91 | */ |
| 92 | static const struct rtk_type re_devs[] = { |
| 93 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, |
| 94 | RTK_8139CPLUS, |
| 95 | "RealTek 8139C+ 10/100BaseTX" }, |
| 96 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, |
| 97 | RTK_8101E, |
| 98 | "RealTek 8100E/8101E/8102E/8102EL PCIe 10/100BaseTX" }, |
| 99 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, |
| 100 | RTK_8168, |
| 101 | "RealTek 8168/8111 PCIe Gigabit Ethernet" }, |
| 102 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, |
| 103 | RTK_8169, |
| 104 | "RealTek 8169/8110 Gigabit Ethernet" }, |
| 105 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, |
| 106 | RTK_8169, |
| 107 | "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, |
| 108 | { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, |
| 109 | RTK_8169, |
| 110 | "Corega CG-LAPCIGT Gigabit Ethernet" }, |
| 111 | { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, |
| 112 | RTK_8169, |
| 113 | "D-Link DGE-528T Gigabit Ethernet" }, |
| 114 | { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, |
| 115 | RTK_8169, |
| 116 | "US Robotics (3Com) USR997902 Gigabit Ethernet" }, |
| 117 | { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, |
| 118 | RTK_8169, |
| 119 | "Linksys EG1032 rev. 3 Gigabit Ethernet" }, |
| 120 | }; |
| 121 | |
| 122 | static const struct rtk_type * |
| 123 | re_pci_lookup(const struct pci_attach_args * pa) |
| 124 | { |
| 125 | int i; |
| 126 | |
| 127 | for(i = 0; i < __arraycount(re_devs); i++) { |
| 128 | if (PCI_VENDOR(pa->pa_id) != re_devs[i].rtk_vid) |
| 129 | continue; |
| 130 | if (PCI_PRODUCT(pa->pa_id) == re_devs[i].rtk_did) |
| 131 | return &re_devs[i]; |
| 132 | } |
| 133 | |
| 134 | return NULL; |
| 135 | } |
| 136 | |
| 137 | #define RE_LINKSYS_EG1032_SUBID 0x00241737 |
| 138 | |
| 139 | /* |
| 140 | * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device |
| 141 | * IDs against our list and return a device name if we find a match. |
| 142 | */ |
| 143 | static int |
| 144 | re_pci_match(device_t parent, cfdata_t cf, void *aux) |
| 145 | { |
| 146 | struct pci_attach_args *pa = aux; |
| 147 | pcireg_t subid; |
| 148 | |
| 149 | subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); |
| 150 | |
| 151 | /* special-case Linksys EG1032, since rev 2 uses sk(4) */ |
| 152 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && |
| 153 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { |
| 154 | if (subid != RE_LINKSYS_EG1032_SUBID) |
| 155 | return 0; |
| 156 | } |
| 157 | |
| 158 | /* Don't match 8139 other than C-PLUS */ |
| 159 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && |
| 160 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { |
| 161 | if (PCI_REVISION(pa->pa_class) != 0x20) |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | if (re_pci_lookup(pa) != NULL) |
| 166 | return 2; /* defeat rtk(4) */ |
| 167 | |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | static void |
| 172 | re_pci_attach(device_t parent, device_t self, void *aux) |
| 173 | { |
| 174 | struct re_pci_softc *psc = device_private(self); |
| 175 | struct rtk_softc *sc = &psc->sc_rtk; |
| 176 | struct pci_attach_args *pa = aux; |
| 177 | pci_chipset_tag_t pc = pa->pa_pc; |
| 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_alloc(pa, &psc->sc_pihp, NULL, 0)) { |
| 257 | aprint_error_dev(self, "couldn't map interrupt\n" ); |
| 258 | return; |
| 259 | } |
| 260 | intrstr = pci_intr_string(pc, psc->sc_pihp[0], intrbuf, |
| 261 | sizeof(intrbuf)); |
| 262 | psc->sc_ih = pci_intr_establish(pc, psc->sc_pihp[0], IPL_NET, |
| 263 | re_intr, sc); |
| 264 | if (psc->sc_ih == NULL) { |
| 265 | aprint_error_dev(self, "couldn't establish interrupt" ); |
| 266 | if (intrstr != NULL) |
| 267 | aprint_error(" at %s" , intrstr); |
| 268 | aprint_error("\n" ); |
| 269 | return; |
| 270 | } |
| 271 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
| 272 | |
| 273 | re_attach(sc); |
| 274 | |
| 275 | hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; |
| 276 | |
| 277 | /* |
| 278 | * Perform hardware diagnostic on the original RTL8169. |
| 279 | * Some 32-bit cards were incorrectly wired and would |
| 280 | * malfunction if plugged into a 64-bit slot. |
| 281 | */ |
| 282 | if (hwrev == RTK_HWREV_8169) { |
| 283 | if (re_diag(sc)) { |
| 284 | re_pci_detach(self, 0); |
| 285 | aprint_error_dev(self, "disabled\n" ); |
| 286 | } |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | static int |
| 291 | re_pci_detach(device_t self, int flags) |
| 292 | { |
| 293 | struct re_pci_softc *psc = device_private(self); |
| 294 | struct rtk_softc *sc = &psc->sc_rtk; |
| 295 | int rv; |
| 296 | |
| 297 | if ((sc->sc_flags & RTK_ATTACHED) != 0) |
| 298 | /* re_stop() */ |
| 299 | sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0); |
| 300 | |
| 301 | rv = re_detach(sc); |
| 302 | if (rv) |
| 303 | return rv; |
| 304 | |
| 305 | if (psc->sc_ih != NULL) { |
| 306 | pci_intr_disestablish(psc->sc_pc, psc->sc_ih); |
| 307 | psc->sc_ih = NULL; |
| 308 | } |
| 309 | |
| 310 | if (psc->sc_pihp != NULL) { |
| 311 | pci_intr_release(psc->sc_pc, psc->sc_pihp, 1); |
| 312 | psc->sc_pihp = NULL; |
| 313 | } |
| 314 | |
| 315 | if (sc->rtk_bsize != 0) { |
| 316 | bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize); |
| 317 | sc->rtk_bsize = 0; |
| 318 | } |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | |