325 lines
9.2 KiB
C
325 lines
9.2 KiB
C
/* $NetBSD: if_re_pci.c,v 1.48 2017/05/18 18:33:48 jakllsch Exp $ */
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/*
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* Copyright (c) 1997, 1998-2003
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */
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/*
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* RealTek 8139C+/8169/8169S/8110S PCI NIC driver
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*
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* Written by Bill Paul <wpaul@windriver.com>
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* Senior Networking Software Engineer
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* Wind River Systems
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*
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* NetBSD bus-specific frontends for written by
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* Jonathan Stone <jonathan@netbsd.org>
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_re_pci.c,v 1.48 2017/05/18 18:33:48 jakllsch Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <sys/bus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/rtl81x9reg.h>
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#include <dev/ic/rtl81x9var.h>
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#include <dev/ic/rtl8169var.h>
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struct re_pci_softc {
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struct rtk_softc sc_rtk;
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void *sc_ih;
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pci_intr_handle_t *sc_pihp;
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pci_chipset_tag_t sc_pc;
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};
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static int re_pci_match(device_t, cfdata_t, void *);
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static void re_pci_attach(device_t, device_t, void *);
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static int re_pci_detach(device_t, int);
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CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc),
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re_pci_match, re_pci_attach, re_pci_detach, NULL);
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/*
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* Various supported device vendors/types and their names.
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*/
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static const struct rtk_type re_devs[] = {
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139,
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RTK_8139CPLUS,
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"RealTek 8139C+ 10/100BaseTX" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E,
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RTK_8101E,
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"RealTek 8100E/8101E/8102E/8102EL PCIe 10/100BaseTX" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168,
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RTK_8168,
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"RealTek 8168/8111 PCIe Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169,
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RTK_8169,
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"RealTek 8169/8110 Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC,
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RTK_8169,
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"RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" },
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{ PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT,
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RTK_8169,
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"Corega CG-LAPCIGT Gigabit Ethernet" },
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{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T,
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RTK_8169,
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"D-Link DGE-528T Gigabit Ethernet" },
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{ PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902,
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RTK_8169,
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"US Robotics (3Com) USR997902 Gigabit Ethernet" },
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{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032,
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RTK_8169,
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"Linksys EG1032 rev. 3 Gigabit Ethernet" },
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};
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static const struct rtk_type *
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re_pci_lookup(const struct pci_attach_args * pa)
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{
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int i;
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for(i = 0; i < __arraycount(re_devs); i++) {
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if (PCI_VENDOR(pa->pa_id) != re_devs[i].rtk_vid)
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continue;
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if (PCI_PRODUCT(pa->pa_id) == re_devs[i].rtk_did)
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return &re_devs[i];
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}
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return NULL;
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}
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#define RE_LINKSYS_EG1032_SUBID 0x00241737
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/*
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* Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device
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* IDs against our list and return a device name if we find a match.
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*/
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static int
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re_pci_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct pci_attach_args *pa = aux;
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pcireg_t subid;
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subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
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/* special-case Linksys EG1032, since rev 2 uses sk(4) */
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) {
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if (subid != RE_LINKSYS_EG1032_SUBID)
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return 0;
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}
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/* Don't match 8139 other than C-PLUS */
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) {
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if (PCI_REVISION(pa->pa_class) != 0x20)
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return 0;
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}
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if (re_pci_lookup(pa) != NULL)
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return 2; /* defeat rtk(4) */
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return 0;
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}
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static void
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re_pci_attach(device_t parent, device_t self, void *aux)
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{
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struct re_pci_softc *psc = device_private(self);
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struct rtk_softc *sc = &psc->sc_rtk;
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struct pci_attach_args *pa = aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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const char *intrstr = NULL;
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const struct rtk_type *t;
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uint32_t hwrev;
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pcireg_t command, memtype;
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bool ioh_valid, memh_valid;
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bus_space_tag_t iot, memt;
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bus_space_handle_t ioh, memh;
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bus_size_t iosize, memsize;
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char intrbuf[PCI_INTRSTR_LEN];
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sc->sc_dev = self;
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psc->sc_pc = pa->pa_pc;
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command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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command |= PCI_COMMAND_MASTER_ENABLE;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
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/*
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* Map control/status registers.
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*/
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ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
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&iot, &ioh, NULL, &iosize) == 0);
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memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM);
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switch (memtype) {
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case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
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case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
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memh_valid =
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(pci_mapreg_map(pa, RTK_PCI_LOMEM,
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memtype, 0, &memt, &memh, NULL, &memsize) == 0) ||
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(pci_mapreg_map(pa, RTK_PCI_LOMEM + 4,
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PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT,
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0, &memt, &memh, NULL, &memsize) == 0);
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break;
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default:
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memh_valid = 0;
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break;
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}
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if (ioh_valid) {
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sc->rtk_btag = iot;
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sc->rtk_bhandle = ioh;
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sc->rtk_bsize = iosize;
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if (memh_valid)
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bus_space_unmap(memt, memh, memsize);
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} else if (memh_valid) {
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sc->rtk_btag = memt;
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sc->rtk_bhandle = memh;
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sc->rtk_bsize = memsize;
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} else {
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aprint_error(": can't map registers\n");
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return;
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}
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t = re_pci_lookup(pa);
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KASSERT(t != NULL);
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pci_aprint_devinfo_fancy(pa, NULL, t->rtk_name, 1);
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if (t->rtk_basetype == RTK_8139CPLUS)
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sc->sc_quirk |= RTKQ_8139CPLUS;
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if (t->rtk_basetype == RTK_8168 ||
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t->rtk_basetype == RTK_8101E)
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sc->sc_quirk |= RTKQ_PCIE;
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if (t->rtk_basetype == RTK_8168)
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sc->sc_quirk |= RTKQ_IM_HW;
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if (pci_dma64_available(pa) && (sc->sc_quirk & RTKQ_PCIE))
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sc->sc_dmat = pa->pa_dmat64;
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else
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sc->sc_dmat = pa->pa_dmat;
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/*
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* No power/enable/disable machinery for PCI attach;
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* mark the card enabled now.
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*/
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sc->sc_flags |= RTK_ENABLED;
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/* Hook interrupt last to avoid having to lock softc */
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/* Allocate interrupt */
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if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0)) {
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aprint_error_dev(self, "couldn't map interrupt\n");
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return;
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}
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intrstr = pci_intr_string(pc, psc->sc_pihp[0], intrbuf,
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sizeof(intrbuf));
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psc->sc_ih = pci_intr_establish(pc, psc->sc_pihp[0], IPL_NET,
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re_intr, sc);
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if (psc->sc_ih == NULL) {
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aprint_error_dev(self, "couldn't establish interrupt");
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if (intrstr != NULL)
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aprint_error(" at %s", intrstr);
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aprint_error("\n");
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return;
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}
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aprint_normal_dev(self, "interrupting at %s\n", intrstr);
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re_attach(sc);
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hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV;
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/*
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* Perform hardware diagnostic on the original RTL8169.
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* Some 32-bit cards were incorrectly wired and would
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* malfunction if plugged into a 64-bit slot.
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*/
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if (hwrev == RTK_HWREV_8169) {
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if (re_diag(sc)) {
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re_pci_detach(self, 0);
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aprint_error_dev(self, "disabled\n");
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}
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}
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}
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static int
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re_pci_detach(device_t self, int flags)
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{
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struct re_pci_softc *psc = device_private(self);
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struct rtk_softc *sc = &psc->sc_rtk;
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int rv;
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if ((sc->sc_flags & RTK_ATTACHED) != 0)
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/* re_stop() */
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sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0);
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rv = re_detach(sc);
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if (rv)
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return rv;
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if (psc->sc_ih != NULL) {
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pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
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psc->sc_ih = NULL;
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}
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if (psc->sc_pihp != NULL) {
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pci_intr_release(psc->sc_pc, psc->sc_pihp, 1);
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psc->sc_pihp = NULL;
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}
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if (sc->rtk_bsize != 0) {
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bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize);
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sc->rtk_bsize = 0;
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}
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return 0;
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}
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