/* $NetBSD: if_re_pci.c,v 1.38 2009/09/02 15:11:13 tsutsui 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 1.38 2009/09/02 15:11:13 tsutsui 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_chipset_tag_t sc_pc; pcitag_t sc_pcitag; }; static int re_pci_match(device_t, cfdata_t, void *); static void re_pci_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc), re_pci_match, re_pci_attach, NULL, 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_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_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" }, { 0, 0, 0, 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) { const struct rtk_type *t; 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; } t = re_devs; while (t->rtk_name != NULL) { if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { return 2; /* defect rtk(4) */ } t++; } 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; pci_intr_handle_t ih; const char *intrstr = NULL; const struct rtk_type *t; uint32_t hwrev; int error = 0; 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, bsize; sc->sc_dev = self; /* * Map control/status registers. */ 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); 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); break; default: memh_valid = 0; break; } if (ioh_valid) { sc->rtk_btag = iot; sc->rtk_bhandle = ioh; bsize = iosize; } else if (memh_valid) { sc->rtk_btag = memt; sc->rtk_bhandle = memh; bsize = memsize; } else { aprint_error(": can't map registers\n"); return; } t = re_devs; hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; while (t->rtk_name != NULL) { if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { break; } t++; } aprint_normal(": %s (rev. 0x%02x)\n", t->rtk_name, PCI_REVISION(pa->pa_class)); 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; 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_map(pa, &ih)) { aprint_error_dev(self, "couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 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); /* * 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) { error = re_diag(sc); if (error) { aprint_error_dev(self, "attach aborted due to hardware diag failure\n"); re_detach(sc); if (psc->sc_ih != NULL) { pci_intr_disestablish(pc, psc->sc_ih); psc->sc_ih = NULL; } if (ioh_valid) bus_space_unmap(iot, ioh, iosize); if (memh_valid) bus_space_unmap(memt, memh, memsize); } } }