/* $NetBSD: if_re_pci.c,v 1.49.4.1 2019/11/19 13:10:50 martin Exp $ */ /* * Copyright (c) 1997, 1998-2003 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */ /* * RealTek 8139C+/8169/8169S/8110S PCI NIC driver * * Written by Bill Paul * Senior Networking Software Engineer * Wind River Systems * * NetBSD bus-specific frontends for written by * Jonathan Stone */ #include __KERNEL_RCSID(0, "$NetBSD: if_re_pci.c,v 1.49.4.1 2019/11/19 13:10:50 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct re_pci_softc { struct rtk_softc sc_rtk; void *sc_ih; pci_intr_handle_t *sc_pihp; pci_chipset_tag_t sc_pc; }; static int re_pci_match(device_t, cfdata_t, void *); static void re_pci_attach(device_t, device_t, void *); static int re_pci_detach(device_t, int); CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc), re_pci_match, re_pci_attach, re_pci_detach, NULL); /* * Various supported device vendors/types and their names. */ static const struct rtk_type re_devs[] = { { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_8139CPLUS, "RealTek 8139C+ 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, RTK_8101E, "RealTek 8100E/8101E/8102E/8102EL PCIe 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, RTK_8168, "RealTek 8168/8111 PCIe Gigabit Ethernet" }, { PCI_VENDOR_NCUBE, PCI_PRODUCT_NCUBE_TG3648, RTK_8168, "TP-Link TG-3468 v2 (RTL8168) Gigabit Ethernet" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_8169, "RealTek 8169/8110 Gigabit Ethernet" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, RTK_8169, "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, RTK_8169, "Corega CG-LAPCIGT Gigabit Ethernet" }, { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, RTK_8169, "D-Link DGE-528T Gigabit Ethernet" }, { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE530T_C1, RTK_8169, "D-Link DGE-530T C1 Gigabit Ethernet" }, { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, RTK_8169, "US Robotics (3Com) USR997902 Gigabit Ethernet" }, { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, RTK_8169, "Linksys EG1032 rev. 3 Gigabit Ethernet" }, }; static const struct rtk_type * re_pci_lookup(const struct pci_attach_args * pa) { int i; for(i = 0; i < __arraycount(re_devs); i++) { if (PCI_VENDOR(pa->pa_id) != re_devs[i].rtk_vid) continue; if (PCI_PRODUCT(pa->pa_id) == re_devs[i].rtk_did) return &re_devs[i]; } return NULL; } #define RE_LINKSYS_EG1032_SUBID 0x00241737 /* * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device * IDs against our list and return a device name if we find a match. */ static int re_pci_match(device_t parent, cfdata_t cf, void *aux) { struct pci_attach_args *pa = aux; pcireg_t subid; subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); /* special-case Linksys EG1032, since rev 2 uses sk(4) */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { if (subid != RE_LINKSYS_EG1032_SUBID) return 0; } /* Don't match 8139 other than C-PLUS */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { if (PCI_REVISION(pa->pa_class) != 0x20) return 0; } if (re_pci_lookup(pa) != NULL) return 2; /* defeat rtk(4) */ return 0; } static void re_pci_attach(device_t parent, device_t self, void *aux) { struct re_pci_softc *psc = device_private(self); struct rtk_softc *sc = &psc->sc_rtk; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; const char *intrstr = NULL; const struct rtk_type *t; uint32_t hwrev; pcireg_t command, memtype; bool ioh_valid, memh_valid; bus_space_tag_t iot, memt; bus_space_handle_t ioh, memh; bus_size_t iosize, memsize; char intrbuf[PCI_INTRSTR_LEN]; sc->sc_dev = self; psc->sc_pc = pa->pa_pc; command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); command |= PCI_COMMAND_MASTER_ENABLE; pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); /* * Map control/status registers. */ ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, &iosize) == 0); memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); switch (memtype) { case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, memtype, 0, &memt, &memh, NULL, &memsize) == 0) || (pci_mapreg_map(pa, RTK_PCI_LOMEM + 4, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT, 0, &memt, &memh, NULL, &memsize) == 0); break; default: memh_valid = 0; break; } if (ioh_valid) { sc->rtk_btag = iot; sc->rtk_bhandle = ioh; sc->rtk_bsize = iosize; if (memh_valid) bus_space_unmap(memt, memh, memsize); } else if (memh_valid) { sc->rtk_btag = memt; sc->rtk_bhandle = memh; sc->rtk_bsize = memsize; } else { aprint_error(": can't map registers\n"); return; } t = re_pci_lookup(pa); KASSERT(t != NULL); pci_aprint_devinfo_fancy(pa, NULL, t->rtk_name, 1); if (t->rtk_basetype == RTK_8139CPLUS) sc->sc_quirk |= RTKQ_8139CPLUS; if (t->rtk_basetype == RTK_8168 || t->rtk_basetype == RTK_8101E) sc->sc_quirk |= RTKQ_PCIE; if (t->rtk_basetype == RTK_8168) sc->sc_quirk |= RTKQ_IM_HW; if (pci_dma64_available(pa) && (sc->sc_quirk & RTKQ_PCIE)) sc->sc_dmat = pa->pa_dmat64; else sc->sc_dmat = pa->pa_dmat; /* * No power/enable/disable machinery for PCI attach; * mark the card enabled now. */ sc->sc_flags |= RTK_ENABLED; /* Hook interrupt last to avoid having to lock softc */ /* Allocate interrupt */ if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0)) { aprint_error_dev(self, "couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, psc->sc_pihp[0], intrbuf, sizeof(intrbuf)); psc->sc_ih = pci_intr_establish_xname(pc, psc->sc_pihp[0], IPL_NET, re_intr, sc, device_xname(sc->sc_dev)); if (psc->sc_ih == NULL) { aprint_error_dev(self, "couldn't establish interrupt"); if (intrstr != NULL) aprint_error(" at %s", intrstr); aprint_error("\n"); return; } aprint_normal_dev(self, "interrupting at %s\n", intrstr); re_attach(sc); hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; /* * Perform hardware diagnostic on the original RTL8169. * Some 32-bit cards were incorrectly wired and would * malfunction if plugged into a 64-bit slot. */ if (hwrev == RTK_HWREV_8169) { if (re_diag(sc)) { re_pci_detach(self, 0); aprint_error_dev(self, "disabled\n"); } } } static int re_pci_detach(device_t self, int flags) { struct re_pci_softc *psc = device_private(self); struct rtk_softc *sc = &psc->sc_rtk; int rv; if ((sc->sc_flags & RTK_ATTACHED) != 0) /* re_stop() */ sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0); rv = re_detach(sc); if (rv) return rv; if (psc->sc_ih != NULL) { pci_intr_disestablish(psc->sc_pc, psc->sc_ih); psc->sc_ih = NULL; } if (psc->sc_pihp != NULL) { pci_intr_release(psc->sc_pc, psc->sc_pihp, 1); psc->sc_pihp = NULL; } if (sc->rtk_bsize != 0) { bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize); sc->rtk_bsize = 0; } return 0; }