/* $NetBSD: if_jme.c,v 1.31.8.3 2019/11/10 13:34:46 martin Exp $ */ /* * Copyright (c) 2008 Manuel Bouyer. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. */ /*- * Copyright (c) 2008, Pyun YongHyeon * 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 unmodified, 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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. */ /* * Driver for JMicron Technologies JMC250 (Giganbit) and JMC260 (Fast) * Ethernet Controllers. */ #include __KERNEL_RCSID(0, "$NetBSD: if_jme.c,v 1.31.8.3 2019/11/10 13:34:46 martin Exp $"); #include #include #include #include #include #include #include #include #include #include /* only for declaration of wakeup() used by vm.h */ #include #include #include #include #if defined(SIOCSIFMEDIA) #include #endif #include #include #include #include #include #include #include #include #include #ifdef INET #include #endif #include #include #if defined(INET) #include #endif #include #include #include #include #include #include #include #include struct jme_product_desc { u_int32_t jme_product; const char *jme_desc; }; /* number of entries in transmit and receive rings */ #define JME_NBUFS (PAGE_SIZE / sizeof(struct jme_desc)) #define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) /* Water mark to kick reclaiming Tx buffers. */ #define JME_TX_DESC_HIWAT (JME_NBUFS - (((JME_NBUFS) * 3) / 10)) struct jme_softc { device_t jme_dev; /* base device */ bus_space_tag_t jme_bt_mac; bus_space_handle_t jme_bh_mac; /* Mac registers */ bus_space_tag_t jme_bt_phy; bus_space_handle_t jme_bh_phy; /* PHY registers */ bus_space_tag_t jme_bt_misc; bus_space_handle_t jme_bh_misc; /* Misc registers */ bus_dma_tag_t jme_dmatag; bus_dma_segment_t jme_txseg; /* transmit ring seg */ bus_dmamap_t jme_txmap; /* transmit ring DMA map */ struct jme_desc* jme_txring; /* transmit ring */ bus_dmamap_t jme_txmbufm[JME_NBUFS]; /* transmit mbufs DMA map */ struct mbuf *jme_txmbuf[JME_NBUFS]; /* mbufs being transmitted */ int jme_tx_cons; /* transmit ring consumer */ int jme_tx_prod; /* transmit ring producer */ int jme_tx_cnt; /* transmit ring active count */ bus_dma_segment_t jme_rxseg; /* receive ring seg */ bus_dmamap_t jme_rxmap; /* receive ring DMA map */ struct jme_desc* jme_rxring; /* receive ring */ bus_dmamap_t jme_rxmbufm[JME_NBUFS]; /* receive mbufs DMA map */ struct mbuf *jme_rxmbuf[JME_NBUFS]; /* mbufs being received */ int jme_rx_cons; /* receive ring consumer */ int jme_rx_prod; /* receive ring producer */ void* jme_ih; /* our interrupt */ struct ethercom jme_ec; struct callout jme_tick_ch; /* tick callout */ u_int8_t jme_enaddr[ETHER_ADDR_LEN];/* hardware address */ u_int8_t jme_phyaddr; /* address of integrated phy */ u_int8_t jme_chip_rev; /* chip revision */ u_int8_t jme_rev; /* PCI revision */ mii_data_t jme_mii; /* mii bus */ u_int32_t jme_flags; /* device features, see below */ uint32_t jme_txcsr; /* TX config register */ uint32_t jme_rxcsr; /* RX config register */ krndsource_t rnd_source; /* interrupt coalition parameters */ struct sysctllog *jme_clog; int jme_intrxto; /* interrupt RX timeout */ int jme_intrxct; /* interrupt RX packets counter */ int jme_inttxto; /* interrupt TX timeout */ int jme_inttxct; /* interrupt TX packets counter */ }; #define JME_FLAG_FPGA 0x0001 /* FPGA version */ #define JME_FLAG_GIGA 0x0002 /* giga Ethernet capable */ #define jme_if jme_ec.ec_if #define jme_bpf jme_if.if_bpf typedef struct jme_softc jme_softc_t; typedef u_long ioctl_cmd_t; static int jme_pci_match(device_t, cfdata_t, void *); static void jme_pci_attach(device_t, device_t, void *); static void jme_intr_rx(jme_softc_t *); static int jme_intr(void *); static int jme_ifioctl(struct ifnet *, ioctl_cmd_t, void *); static int jme_mediachange(struct ifnet *); static void jme_ifwatchdog(struct ifnet *); static bool jme_shutdown(device_t, int); static void jme_txeof(struct jme_softc *); static void jme_ifstart(struct ifnet *); static void jme_reset(jme_softc_t *); static int jme_ifinit(struct ifnet *); static int jme_init(struct ifnet *, int); static void jme_stop(struct ifnet *, int); // static void jme_restart(void *); static void jme_ticks(void *); static void jme_mac_config(jme_softc_t *); static void jme_set_filter(jme_softc_t *); int jme_mii_read(device_t, int, int); void jme_mii_write(device_t, int, int, int); void jme_statchg(struct ifnet *); static int jme_eeprom_read_byte(struct jme_softc *, uint8_t, uint8_t *); static int jme_eeprom_macaddr(struct jme_softc *); static int jme_reg_macaddr(struct jme_softc *); #define JME_TIMEOUT 1000 #define JME_PHY_TIMEOUT 1000 #define JME_EEPROM_TIMEOUT 1000 static int jme_sysctl_intrxto(SYSCTLFN_PROTO); static int jme_sysctl_intrxct(SYSCTLFN_PROTO); static int jme_sysctl_inttxto(SYSCTLFN_PROTO); static int jme_sysctl_inttxct(SYSCTLFN_PROTO); static int jme_root_num; CFATTACH_DECL_NEW(jme, sizeof(jme_softc_t), jme_pci_match, jme_pci_attach, NULL, NULL); static const struct jme_product_desc jme_products[] = { { PCI_PRODUCT_JMICRON_JMC250, "JMicron JMC250 Gigabit Ethernet Controller" }, { PCI_PRODUCT_JMICRON_JMC260, "JMicron JMC260 Gigabit Ethernet Controller" }, { 0, NULL }, }; static const struct jme_product_desc *jme_lookup_product(uint32_t); static const struct jme_product_desc * jme_lookup_product(uint32_t id) { const struct jme_product_desc *jp; for (jp = jme_products ; jp->jme_desc != NULL; jp++) if (PCI_PRODUCT(id) == jp->jme_product) return jp; return NULL; } static int jme_pci_match(device_t parent, cfdata_t cf, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *)aux; if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_JMICRON) return 0; if (jme_lookup_product(pa->pa_id) != NULL) return 1; return 0; } static void jme_pci_attach(device_t parent, device_t self, void *aux) { jme_softc_t *sc = device_private(self); struct pci_attach_args * const pa = (struct pci_attach_args *)aux; const struct jme_product_desc *jp; struct ifnet * const ifp = &sc->jme_if; bus_space_tag_t iot1, iot2, memt; bus_space_handle_t ioh1, ioh2, memh; bus_size_t size, size2; pci_intr_handle_t intrhandle; const char *intrstr; pcireg_t csr; int nsegs, i; const struct sysctlnode *node; int jme_nodenum; char intrbuf[PCI_INTRSTR_LEN]; sc->jme_dev = self; aprint_normal("\n"); callout_init(&sc->jme_tick_ch, 0); jp = jme_lookup_product(pa->pa_id); if (jp == NULL) panic("jme_pci_attach: impossible"); if (jp->jme_product == PCI_PRODUCT_JMICRON_JMC250) sc->jme_flags = JME_FLAG_GIGA; /* * Map the card space. Try Mem first. */ if (pci_mapreg_map(pa, JME_PCI_BAR0, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &size) == 0) { sc->jme_bt_mac = memt; sc->jme_bh_mac = memh; sc->jme_bt_phy = memt; if (bus_space_subregion(memt, memh, JME_PHY_EEPROM_BASE_MEMOFF, JME_PHY_EEPROM_SIZE, &sc->jme_bh_phy) != 0) { aprint_error_dev(self, "can't subregion PHY space\n"); bus_space_unmap(memt, memh, size); return; } sc->jme_bt_misc = memt; if (bus_space_subregion(memt, memh, JME_MISC_BASE_MEMOFF, JME_MISC_SIZE, &sc->jme_bh_misc) != 0) { aprint_error_dev(self, "can't subregion misc space\n"); bus_space_unmap(memt, memh, size); return; } } else { if (pci_mapreg_map(pa, JME_PCI_BAR1, PCI_MAPREG_TYPE_IO, 0, &iot1, &ioh1, NULL, &size) != 0) { aprint_error_dev(self, "can't map I/O space 1\n"); return; } sc->jme_bt_mac = iot1; sc->jme_bh_mac = ioh1; if (pci_mapreg_map(pa, JME_PCI_BAR2, PCI_MAPREG_TYPE_IO, 0, &iot2, &ioh2, NULL, &size2) != 0) { aprint_error_dev(self, "can't map I/O space 2\n"); bus_space_unmap(iot1, ioh1, size); return; } sc->jme_bt_phy = iot2; sc->jme_bh_phy = ioh2; sc->jme_bt_misc = iot2; if (bus_space_subregion(iot2, ioh2, JME_MISC_BASE_IOOFF, JME_MISC_SIZE, &sc->jme_bh_misc) != 0) { aprint_error_dev(self, "can't subregion misc space\n"); bus_space_unmap(iot1, ioh1, size); bus_space_unmap(iot2, ioh2, size2); return; } } if (pci_dma64_available(pa)) sc->jme_dmatag = pa->pa_dmat64; else sc->jme_dmatag = pa->pa_dmat; /* Enable the device. */ csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MASTER_ENABLE); aprint_normal_dev(self, "%s\n", jp->jme_desc); sc->jme_rev = PCI_REVISION(pa->pa_class); csr = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_CHIPMODE); if (((csr & CHIPMODE_FPGA_REV_MASK) >> CHIPMODE_FPGA_REV_SHIFT) != CHIPMODE_NOT_FPGA) sc->jme_flags |= JME_FLAG_FPGA; sc->jme_chip_rev = (csr & CHIPMODE_REV_MASK) >> CHIPMODE_REV_SHIFT; aprint_verbose_dev(self, "PCI device revision : 0x%x, Chip revision: " "0x%x", sc->jme_rev, sc->jme_chip_rev); if (sc->jme_flags & JME_FLAG_FPGA) aprint_verbose(" FPGA revision: 0x%x", (csr & CHIPMODE_FPGA_REV_MASK) >> CHIPMODE_FPGA_REV_SHIFT); aprint_verbose("\n"); /* * Save PHY address. * Integrated JR0211 has fixed PHY address whereas FPGA version * requires PHY probing to get correct PHY address. */ if ((sc->jme_flags & JME_FLAG_FPGA) == 0) { sc->jme_phyaddr = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_GPREG0) & GPREG0_PHY_ADDR_MASK; } else sc->jme_phyaddr = 0; jme_reset(sc); /* read mac addr */ if (jme_eeprom_macaddr(sc) && jme_reg_macaddr(sc)) { aprint_error_dev(self, "error reading Ethernet address\n"); /* return; */ } aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(sc->jme_enaddr)); /* Map and establish interrupts */ if (pci_intr_map(pa, &intrhandle)) { aprint_error_dev(self, "couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pa->pa_pc, intrhandle, intrbuf, sizeof(intrbuf)); sc->jme_if.if_softc = sc; sc->jme_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET, jme_intr, sc); if (sc->jme_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); /* allocate and map DMA-safe memory for transmit ring */ if (bus_dmamem_alloc(sc->jme_dmatag, PAGE_SIZE, 0, PAGE_SIZE, &sc->jme_txseg, 1, &nsegs, BUS_DMA_NOWAIT) != 0 || bus_dmamem_map(sc->jme_dmatag, &sc->jme_txseg, nsegs, PAGE_SIZE, (void **)&sc->jme_txring, BUS_DMA_NOWAIT | BUS_DMA_COHERENT) != 0 || bus_dmamap_create(sc->jme_dmatag, PAGE_SIZE, 1, PAGE_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->jme_txmap) != 0 || bus_dmamap_load(sc->jme_dmatag, sc->jme_txmap, sc->jme_txring, PAGE_SIZE, NULL, BUS_DMA_NOWAIT) != 0) { aprint_error_dev(self, "can't allocate DMA memory TX ring\n"); return; } /* allocate and map DMA-safe memory for receive ring */ if (bus_dmamem_alloc(sc->jme_dmatag, PAGE_SIZE, 0, PAGE_SIZE, &sc->jme_rxseg, 1, &nsegs, BUS_DMA_NOWAIT) != 0 || bus_dmamem_map(sc->jme_dmatag, &sc->jme_rxseg, nsegs, PAGE_SIZE, (void **)&sc->jme_rxring, BUS_DMA_NOWAIT | BUS_DMA_COHERENT) != 0 || bus_dmamap_create(sc->jme_dmatag, PAGE_SIZE, 1, PAGE_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->jme_rxmap) != 0 || bus_dmamap_load(sc->jme_dmatag, sc->jme_rxmap, sc->jme_rxring, PAGE_SIZE, NULL, BUS_DMA_NOWAIT) != 0) { aprint_error_dev(self, "can't allocate DMA memory RX ring\n"); return; } for (i = 0; i < JME_NBUFS; i++) { sc->jme_txmbuf[i] = sc->jme_rxmbuf[i] = NULL; if (bus_dmamap_create(sc->jme_dmatag, JME_MAX_TX_LEN, JME_NBUFS, JME_MAX_TX_LEN, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->jme_txmbufm[i]) != 0) { aprint_error_dev(self, "can't allocate DMA TX map\n"); return; } if (bus_dmamap_create(sc->jme_dmatag, JME_MAX_RX_LEN, 1, JME_MAX_RX_LEN, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->jme_rxmbufm[i]) != 0) { aprint_error_dev(self, "can't allocate DMA RX map\n"); return; } } /* * Initialize our media structures and probe the MII. * * Note that we don't care about the media instance. We * are expecting to have multiple PHYs on the 10/100 cards, * and on those cards we exclude the internal PHY from providing * 10baseT. By ignoring the instance, it allows us to not have * to specify it on the command line when switching media. */ sc->jme_mii.mii_ifp = ifp; sc->jme_mii.mii_readreg = jme_mii_read; sc->jme_mii.mii_writereg = jme_mii_write; sc->jme_mii.mii_statchg = jme_statchg; sc->jme_ec.ec_mii = &sc->jme_mii; ifmedia_init(&sc->jme_mii.mii_media, IFM_IMASK, jme_mediachange, ether_mediastatus); mii_attach(self, &sc->jme_mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); if (LIST_FIRST(&sc->jme_mii.mii_phys) == NULL) { ifmedia_add(&sc->jme_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); ifmedia_set(&sc->jme_mii.mii_media, IFM_ETHER|IFM_NONE); } else ifmedia_set(&sc->jme_mii.mii_media, IFM_ETHER|IFM_AUTO); /* * We can support 802.1Q VLAN-sized frames. */ sc->jme_ec.ec_capabilities |= ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING; if (sc->jme_flags & JME_FLAG_GIGA) sc->jme_ec.ec_capabilities |= ETHERCAP_JUMBO_MTU; strlcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST; ifp->if_ioctl = jme_ifioctl; ifp->if_start = jme_ifstart; ifp->if_watchdog = jme_ifwatchdog; ifp->if_init = jme_ifinit; ifp->if_stop = jme_stop; ifp->if_timer = 0; ifp->if_capabilities |= IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_TCPv6_Tx | /* IFCAP_CSUM_TCPv6_Rx | hardware bug */ IFCAP_CSUM_UDPv6_Tx | /* IFCAP_CSUM_UDPv6_Rx | hardware bug */ IFCAP_TSOv4 | IFCAP_TSOv6; IFQ_SET_READY(&ifp->if_snd); if_attach(ifp); ether_ifattach(&(sc)->jme_if, (sc)->jme_enaddr); /* * Add shutdown hook so that DMA is disabled prior to reboot. */ if (pmf_device_register1(self, NULL, NULL, jme_shutdown)) pmf_class_network_register(self, ifp); else aprint_error_dev(self, "couldn't establish power handler\n"); rnd_attach_source(&sc->rnd_source, device_xname(self), RND_TYPE_NET, RND_FLAG_DEFAULT); sc->jme_intrxto = PCCRX_COAL_TO_DEFAULT; sc->jme_intrxct = PCCRX_COAL_PKT_DEFAULT; sc->jme_inttxto = PCCTX_COAL_TO_DEFAULT; sc->jme_inttxct = PCCTX_COAL_PKT_DEFAULT; if (sysctl_createv(&sc->jme_clog, 0, NULL, &node, 0, CTLTYPE_NODE, device_xname(sc->jme_dev), SYSCTL_DESCR("jme per-controller controls"), NULL, 0, NULL, 0, CTL_HW, jme_root_num, CTL_CREATE, CTL_EOL) != 0) { aprint_normal_dev(sc->jme_dev, "couldn't create sysctl node\n"); return; } jme_nodenum = node->sysctl_num; /* interrupt moderation sysctls */ if (sysctl_createv(&sc->jme_clog, 0, NULL, &node, CTLFLAG_READWRITE, CTLTYPE_INT, "int_rxto", SYSCTL_DESCR("jme RX interrupt moderation timer"), jme_sysctl_intrxto, 0, (void *)sc, 0, CTL_HW, jme_root_num, jme_nodenum, CTL_CREATE, CTL_EOL) != 0) { aprint_normal_dev(sc->jme_dev, "couldn't create int_rxto sysctl node\n"); } if (sysctl_createv(&sc->jme_clog, 0, NULL, &node, CTLFLAG_READWRITE, CTLTYPE_INT, "int_rxct", SYSCTL_DESCR("jme RX interrupt moderation packet counter"), jme_sysctl_intrxct, 0, (void *)sc, 0, CTL_HW, jme_root_num, jme_nodenum, CTL_CREATE, CTL_EOL) != 0) { aprint_normal_dev(sc->jme_dev, "couldn't create int_rxct sysctl node\n"); } if (sysctl_createv(&sc->jme_clog, 0, NULL, &node, CTLFLAG_READWRITE, CTLTYPE_INT, "int_txto", SYSCTL_DESCR("jme TX interrupt moderation timer"), jme_sysctl_inttxto, 0, (void *)sc, 0, CTL_HW, jme_root_num, jme_nodenum, CTL_CREATE, CTL_EOL) != 0) { aprint_normal_dev(sc->jme_dev, "couldn't create int_txto sysctl node\n"); } if (sysctl_createv(&sc->jme_clog, 0, NULL, &node, CTLFLAG_READWRITE, CTLTYPE_INT, "int_txct", SYSCTL_DESCR("jme TX interrupt moderation packet counter"), jme_sysctl_inttxct, 0, (void *)sc, 0, CTL_HW, jme_root_num, jme_nodenum, CTL_CREATE, CTL_EOL) != 0) { aprint_normal_dev(sc->jme_dev, "couldn't create int_txct sysctl node\n"); } } static void jme_stop_rx(jme_softc_t *sc) { uint32_t reg; int i; reg = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR); if ((reg & RXCSR_RX_ENB) == 0) return; reg &= ~RXCSR_RX_ENB; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR, reg); for (i = JME_TIMEOUT / 10; i > 0; i--) { DELAY(10); if ((bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR) & RXCSR_RX_ENB) == 0) break; } if (i == 0) aprint_error_dev(sc->jme_dev, "stopping recevier timeout!\n"); } static void jme_stop_tx(jme_softc_t *sc) { uint32_t reg; int i; reg = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR); if ((reg & TXCSR_TX_ENB) == 0) return; reg &= ~TXCSR_TX_ENB; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR, reg); for (i = JME_TIMEOUT / 10; i > 0; i--) { DELAY(10); if ((bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR) & TXCSR_TX_ENB) == 0) break; } if (i == 0) aprint_error_dev(sc->jme_dev, "stopping transmitter timeout!\n"); } static void jme_reset(jme_softc_t *sc) { bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_GHC, GHC_RESET); DELAY(10); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_GHC, 0); } static bool jme_shutdown(device_t self, int howto) { jme_softc_t *sc; struct ifnet *ifp; sc = device_private(self); ifp = &sc->jme_if; jme_stop(ifp, 1); return true; } static void jme_stop(struct ifnet *ifp, int disable) { jme_softc_t *sc = ifp->if_softc; int i; /* Stop receiver, transmitter. */ jme_stop_rx(sc); jme_stop_tx(sc); /* free receive mbufs */ for (i = 0; i < JME_NBUFS; i++) { if (sc->jme_rxmbuf[i]) { bus_dmamap_unload(sc->jme_dmatag, sc->jme_rxmbufm[i]); m_freem(sc->jme_rxmbuf[i]); } sc->jme_rxmbuf[i] = NULL; } /* process completed transmits */ jme_txeof(sc); /* free abort pending transmits */ for (i = 0; i < JME_NBUFS; i++) { if (sc->jme_txmbuf[i]) { bus_dmamap_unload(sc->jme_dmatag, sc->jme_txmbufm[i]); m_freem(sc->jme_txmbuf[i]); sc->jme_txmbuf[i] = NULL; } } ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); ifp->if_timer = 0; } #if 0 static void jme_restart(void *v) { jme_init(v); } #endif static int jme_add_rxbuf(jme_softc_t *sc, struct mbuf *m) { int error; bus_dmamap_t map; int i = sc->jme_rx_prod; if (sc->jme_rxmbuf[i] != NULL) { aprint_error_dev(sc->jme_dev, "mbuf already here: rxprod %d rxcons %d\n", sc->jme_rx_prod, sc->jme_rx_cons); if (m) m_freem(m); return EINVAL; } if (m == NULL) { sc->jme_rxmbuf[i] = NULL; MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) return (ENOBUFS); MCLGET(m, M_DONTWAIT); if ((m->m_flags & M_EXT) == 0) { m_freem(m); return (ENOBUFS); } } map = sc->jme_rxmbufm[i]; m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; KASSERT(m->m_len == MCLBYTES); error = bus_dmamap_load_mbuf(sc->jme_dmatag, map, m, BUS_DMA_READ|BUS_DMA_NOWAIT); if (error) { sc->jme_rxmbuf[i] = NULL; aprint_error_dev(sc->jme_dev, "unable to load rx DMA map %d, error = %d\n", i, error); m_freem(m); return (error); } bus_dmamap_sync(sc->jme_dmatag, map, 0, map->dm_mapsize, BUS_DMASYNC_PREREAD); sc->jme_rxmbuf[i] = m; sc->jme_rxring[i].buflen = htole32(map->dm_segs[0].ds_len); sc->jme_rxring[i].addr_lo = htole32(JME_ADDR_LO(map->dm_segs[0].ds_addr)); sc->jme_rxring[i].addr_hi = htole32(JME_ADDR_HI(map->dm_segs[0].ds_addr)); sc->jme_rxring[i].flags = htole32(JME_RD_OWN | JME_RD_INTR | JME_RD_64BIT); bus_dmamap_sync(sc->jme_dmatag, sc->jme_rxmap, i * sizeof(struct jme_desc), sizeof(struct jme_desc), BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); JME_DESC_INC(sc->jme_rx_prod, JME_NBUFS); return (0); } static int jme_ifinit(struct ifnet *ifp) { return jme_init(ifp, 1); } static int jme_init(struct ifnet *ifp, int do_ifinit) { jme_softc_t *sc = ifp->if_softc; int i, s; uint8_t eaddr[ETHER_ADDR_LEN]; uint32_t reg; s = splnet(); /* cancel any pending IO */ jme_stop(ifp, 1); jme_reset(sc); if ((sc->jme_if.if_flags & IFF_UP) == 0) { splx(s); return 0; } /* allocate receive ring */ sc->jme_rx_prod = 0; for (i = 0; i < JME_NBUFS; i++) { if (jme_add_rxbuf(sc, NULL) < 0) { aprint_error_dev(sc->jme_dev, "can't allocate rx mbuf\n"); for (i--; i >= 0; i--) { bus_dmamap_unload(sc->jme_dmatag, sc->jme_rxmbufm[i]); m_freem(sc->jme_rxmbuf[i]); sc->jme_rxmbuf[i] = NULL; } splx(s); return ENOMEM; } } /* init TX ring */ memset(sc->jme_txring, 0, JME_NBUFS * sizeof(struct jme_desc)); bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmap, 0, JME_NBUFS * sizeof(struct jme_desc), BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); for (i = 0; i < JME_NBUFS; i++) sc->jme_txmbuf[i] = NULL; sc->jme_tx_cons = sc->jme_tx_prod = sc->jme_tx_cnt = 0; /* Reprogram the station address. */ memcpy(eaddr, CLLADDR(ifp->if_sadl), ETHER_ADDR_LEN); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR0, eaddr[3] << 24 | eaddr[2] << 16 | eaddr[1] << 8 | eaddr[0]); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR1, eaddr[5] << 8 | eaddr[4]); /* * Configure Tx queue. * Tx priority queue weight value : 0 * Tx FIFO threshold for processing next packet : 16QW * Maximum Tx DMA length : 512 * Allow Tx DMA burst. */ sc->jme_txcsr = TXCSR_TXQ_N_SEL(TXCSR_TXQ0); sc->jme_txcsr |= TXCSR_TXQ_WEIGHT(TXCSR_TXQ_WEIGHT_MIN); sc->jme_txcsr |= TXCSR_FIFO_THRESH_16QW; sc->jme_txcsr |= TXCSR_DMA_SIZE_512; sc->jme_txcsr |= TXCSR_DMA_BURST; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR, sc->jme_txcsr); /* Set Tx descriptor counter. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXQDC, JME_NBUFS); /* Set Tx ring address to the hardware. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_HI, JME_ADDR_HI(sc->jme_txmap->dm_segs[0].ds_addr)); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_LO, JME_ADDR_LO(sc->jme_txmap->dm_segs[0].ds_addr)); /* Configure TxMAC parameters. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXMAC, TXMAC_IFG1_DEFAULT | TXMAC_IFG2_DEFAULT | TXMAC_IFG_ENB | TXMAC_THRESH_1_PKT | TXMAC_CRC_ENB | TXMAC_PAD_ENB); /* * Configure Rx queue. * FIFO full threshold for transmitting Tx pause packet : 128T * FIFO threshold for processing next packet : 128QW * Rx queue 0 select * Max Rx DMA length : 128 * Rx descriptor retry : 32 * Rx descriptor retry time gap : 256ns * Don't receive runt/bad frame. */ sc->jme_rxcsr = RXCSR_FIFO_FTHRESH_128T; /* * Since Rx FIFO size is 4K bytes, receiving frames larger * than 4K bytes will suffer from Rx FIFO overruns. So * decrease FIFO threshold to reduce the FIFO overruns for * frames larger than 4000 bytes. * For best performance of standard MTU sized frames use * maximum allowable FIFO threshold, 128QW. */ if ((ifp->if_mtu + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + ETHER_CRC_LEN) > JME_RX_FIFO_SIZE) sc->jme_rxcsr |= RXCSR_FIFO_THRESH_16QW; else sc->jme_rxcsr |= RXCSR_FIFO_THRESH_128QW; sc->jme_rxcsr |= RXCSR_DMA_SIZE_128 | RXCSR_RXQ_N_SEL(RXCSR_RXQ0); sc->jme_rxcsr |= RXCSR_DESC_RT_CNT(RXCSR_DESC_RT_CNT_DEFAULT); sc->jme_rxcsr |= RXCSR_DESC_RT_GAP_256 & RXCSR_DESC_RT_GAP_MASK; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR, sc->jme_rxcsr); /* Set Rx descriptor counter. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXQDC, JME_NBUFS); /* Set Rx ring address to the hardware. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXDBA_HI, JME_ADDR_HI(sc->jme_rxmap->dm_segs[0].ds_addr)); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXDBA_LO, JME_ADDR_LO(sc->jme_rxmap->dm_segs[0].ds_addr)); /* Clear receive filter. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC, 0); /* Set up the receive filter. */ jme_set_filter(sc); /* * Disable all WOL bits as WOL can interfere normal Rx * operation. Also clear WOL detection status bits. */ reg = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PMCS); reg &= ~PMCS_WOL_ENB_MASK; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PMCS, reg); reg = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC); /* * Pad 10bytes right before received frame. This will greatly * help Rx performance on strict-alignment architectures as * it does not need to copy the frame to align the payload. */ reg |= RXMAC_PAD_10BYTES; if ((ifp->if_capenable & (IFCAP_CSUM_IPv4_Rx|IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx| IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx)) != 0) reg |= RXMAC_CSUM_ENB; reg |= RXMAC_VLAN_ENB; /* enable hardware vlan */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC, reg); /* Configure general purpose reg0 */ reg = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_GPREG0); reg &= ~GPREG0_PCC_UNIT_MASK; /* Set PCC timer resolution to micro-seconds unit. */ reg |= GPREG0_PCC_UNIT_US; /* * Disable all shadow register posting as we have to read * JME_INTR_STATUS register in jme_int_task. Also it seems * that it's hard to synchronize interrupt status between * hardware and software with shadow posting due to * requirements of bus_dmamap_sync(9). */ reg |= GPREG0_SH_POST_DW7_DIS | GPREG0_SH_POST_DW6_DIS | GPREG0_SH_POST_DW5_DIS | GPREG0_SH_POST_DW4_DIS | GPREG0_SH_POST_DW3_DIS | GPREG0_SH_POST_DW2_DIS | GPREG0_SH_POST_DW1_DIS | GPREG0_SH_POST_DW0_DIS; /* Disable posting of DW0. */ reg &= ~GPREG0_POST_DW0_ENB; /* Clear PME message. */ reg &= ~GPREG0_PME_ENB; /* Set PHY address. */ reg &= ~GPREG0_PHY_ADDR_MASK; reg |= sc->jme_phyaddr; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_GPREG0, reg); /* Configure Tx queue 0 packet completion coalescing. */ reg = (sc->jme_inttxto << PCCTX_COAL_TO_SHIFT) & PCCTX_COAL_TO_MASK; reg |= (sc->jme_inttxct << PCCTX_COAL_PKT_SHIFT) & PCCTX_COAL_PKT_MASK; reg |= PCCTX_COAL_TXQ0; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCTX, reg); /* Configure Rx queue 0 packet completion coalescing. */ reg = (sc->jme_intrxto << PCCRX_COAL_TO_SHIFT) & PCCRX_COAL_TO_MASK; reg |= (sc->jme_intrxct << PCCRX_COAL_PKT_SHIFT) & PCCRX_COAL_PKT_MASK; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCRX0, reg); /* Disable Timers */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_TMCSR, 0); bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_TIMER1, 0); bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_TIMER2, 0); /* Configure retry transmit period, retry limit value. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD, ((TXTRHD_RT_PERIOD_DEFAULT << TXTRHD_RT_PERIOD_SHIFT) & TXTRHD_RT_PERIOD_MASK) | ((TXTRHD_RT_LIMIT_DEFAULT << TXTRHD_RT_LIMIT_SHIFT) & TXTRHD_RT_LIMIT_SHIFT)); /* Disable RSS. */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_RSSC, RSSC_DIS_RSS); /* Initialize the interrupt mask. */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_MASK_SET, JME_INTRS_ENABLE); bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_STATUS, 0xFFFFFFFF); /* set media, if not already handling a media change */ if (do_ifinit) { int error; if ((error = mii_mediachg(&sc->jme_mii)) == ENXIO) error = 0; else if (error != 0) { aprint_error_dev(sc->jme_dev, "could not set media\n"); splx(s); return error; } } /* Program MAC with resolved speed/duplex/flow-control. */ jme_mac_config(sc); /* Start receiver/transmitter. */ sc->jme_rx_cons = 0; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR, sc->jme_rxcsr | RXCSR_RX_ENB | RXCSR_RXQ_START); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB); /* start ticks calls */ callout_reset(&sc->jme_tick_ch, hz, jme_ticks, sc); sc->jme_if.if_flags |= IFF_RUNNING; sc->jme_if.if_flags &= ~IFF_OACTIVE; splx(s); return 0; } int jme_mii_read(device_t self, int phy, int reg) { struct jme_softc *sc = device_private(self); int val, i; /* For FPGA version, PHY address 0 should be ignored. */ if ((sc->jme_flags & JME_FLAG_FPGA) != 0) { if (phy == 0) return (0); } else { if (sc->jme_phyaddr != phy) return (0); } bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_SMI, SMI_OP_READ | SMI_OP_EXECUTE | SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg)); for (i = JME_PHY_TIMEOUT / 10; i > 0; i--) { delay(10); if (((val = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_SMI)) & SMI_OP_EXECUTE) == 0) break; } if (i == 0) { aprint_error_dev(sc->jme_dev, "phy read timeout : %d\n", reg); return (0); } return ((val & SMI_DATA_MASK) >> SMI_DATA_SHIFT); } void jme_mii_write(device_t self, int phy, int reg, int val) { struct jme_softc *sc = device_private(self); int i; /* For FPGA version, PHY address 0 should be ignored. */ if ((sc->jme_flags & JME_FLAG_FPGA) != 0) { if (phy == 0) return; } else { if (sc->jme_phyaddr != phy) return; } bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_SMI, SMI_OP_WRITE | SMI_OP_EXECUTE | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg)); for (i = JME_PHY_TIMEOUT / 10; i > 0; i--) { delay(10); if (((val = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_SMI)) & SMI_OP_EXECUTE) == 0) break; } if (i == 0) aprint_error_dev(sc->jme_dev, "phy write timeout : %d\n", reg); return; } void jme_statchg(struct ifnet *ifp) { if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) == (IFF_UP|IFF_RUNNING)) jme_init(ifp, 0); } static void jme_intr_rx(jme_softc_t *sc) { struct mbuf *m, *mhead; bus_dmamap_t mmap; struct ifnet *ifp = &sc->jme_if; uint32_t flags, buflen; int i, ipackets, nsegs, seg, error; struct jme_desc *desc; bus_dmamap_sync(sc->jme_dmatag, sc->jme_rxmap, 0, sizeof(struct jme_desc) * JME_NBUFS, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); #ifdef JMEDEBUG_RX printf("rxintr sc->jme_rx_cons %d flags 0x%x\n", sc->jme_rx_cons, le32toh(sc->jme_rxring[sc->jme_rx_cons].flags)); #endif ipackets = 0; while((le32toh(sc->jme_rxring[sc->jme_rx_cons].flags) & JME_RD_OWN) == 0) { i = sc->jme_rx_cons; desc = &sc->jme_rxring[i]; #ifdef JMEDEBUG_RX printf("rxintr i %d flags 0x%x buflen 0x%x\n", i, le32toh(desc->flags), le32toh(desc->buflen)); #endif if (sc->jme_rxmbuf[i] == NULL) { if ((error = jme_add_rxbuf(sc, NULL)) != 0) { aprint_error_dev(sc->jme_dev, "can't add new mbuf to empty slot: %d\n", error); break; } JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); i = sc->jme_rx_cons; continue; } if ((le32toh(desc->buflen) & JME_RD_VALID) == 0) break; buflen = le32toh(desc->buflen); nsegs = JME_RX_NSEGS(buflen); flags = le32toh(desc->flags); if ((buflen & JME_RX_ERR_STAT) != 0 || JME_RX_BYTES(buflen) < sizeof(struct ether_header) || JME_RX_BYTES(buflen) > (ifp->if_mtu + ETHER_HDR_LEN + JME_RX_PAD_BYTES)) { #ifdef JMEDEBUG_RX printf("rx error flags 0x%x buflen 0x%x\n", flags, buflen); #endif ifp->if_ierrors++; /* reuse the mbufs */ for (seg = 0; seg < nsegs; seg++) { m = sc->jme_rxmbuf[i]; sc->jme_rxmbuf[i] = NULL; mmap = sc->jme_rxmbufm[i]; bus_dmamap_sync(sc->jme_dmatag, mmap, 0, mmap->dm_mapsize, BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->jme_dmatag, mmap); if ((error = jme_add_rxbuf(sc, m)) != 0) aprint_error_dev(sc->jme_dev, "can't reuse mbuf: %d\n", error); JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); i = sc->jme_rx_cons; } continue; } /* receive this packet */ mhead = m = sc->jme_rxmbuf[i]; sc->jme_rxmbuf[i] = NULL; mmap = sc->jme_rxmbufm[i]; bus_dmamap_sync(sc->jme_dmatag, mmap, 0, mmap->dm_mapsize, BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->jme_dmatag, mmap); /* add a new buffer to chain */ if (jme_add_rxbuf(sc, NULL) != 0) { if ((error = jme_add_rxbuf(sc, m)) != 0) aprint_error_dev(sc->jme_dev, "can't reuse mbuf: %d\n", error); JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); i = sc->jme_rx_cons; for (seg = 1; seg < nsegs; seg++) { m = sc->jme_rxmbuf[i]; sc->jme_rxmbuf[i] = NULL; mmap = sc->jme_rxmbufm[i]; bus_dmamap_sync(sc->jme_dmatag, mmap, 0, mmap->dm_mapsize, BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->jme_dmatag, mmap); if ((error = jme_add_rxbuf(sc, m)) != 0) aprint_error_dev(sc->jme_dev, "can't reuse mbuf: %d\n", error); JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); i = sc->jme_rx_cons; } ifp->if_ierrors++; continue; } /* build mbuf chain: head, then remaining segments */ m_set_rcvif(m, ifp); m->m_pkthdr.len = JME_RX_BYTES(buflen) - JME_RX_PAD_BYTES; m->m_len = (nsegs > 1) ? (MCLBYTES - JME_RX_PAD_BYTES) : m->m_pkthdr.len; m->m_data = m->m_ext.ext_buf + JME_RX_PAD_BYTES; JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); for (seg = 1; seg < nsegs; seg++) { i = sc->jme_rx_cons; m = sc->jme_rxmbuf[i]; sc->jme_rxmbuf[i] = NULL; mmap = sc->jme_rxmbufm[i]; bus_dmamap_sync(sc->jme_dmatag, mmap, 0, mmap->dm_mapsize, BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->jme_dmatag, mmap); if ((error = jme_add_rxbuf(sc, NULL)) != 0) aprint_error_dev(sc->jme_dev, "can't add new mbuf: %d\n", error); m->m_flags &= ~M_PKTHDR; m_cat(mhead, m); JME_DESC_INC(sc->jme_rx_cons, JME_NBUFS); } /* and adjust last mbuf's size */ if (nsegs > 1) { m->m_len = JME_RX_BYTES(buflen) - (MCLBYTES * (nsegs - 1)); } ipackets++; if ((ifp->if_capenable & IFCAP_CSUM_IPv4_Rx) && (flags & JME_RD_IPV4)) { mhead->m_pkthdr.csum_flags |= M_CSUM_IPv4; if (!(flags & JME_RD_IPCSUM)) mhead->m_pkthdr.csum_flags |= M_CSUM_IPv4_BAD; } if ((ifp->if_capenable & IFCAP_CSUM_TCPv4_Rx) && (flags & JME_RD_TCPV4) == JME_RD_TCPV4) { mhead->m_pkthdr.csum_flags |= M_CSUM_TCPv4; if (!(flags & JME_RD_TCPCSUM)) mhead->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD; } if ((ifp->if_capenable & IFCAP_CSUM_UDPv4_Rx) && (flags & JME_RD_UDPV4) == JME_RD_UDPV4) { mhead->m_pkthdr.csum_flags |= M_CSUM_UDPv4; if (!(flags & JME_RD_UDPCSUM)) mhead->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD; } if ((ifp->if_capenable & IFCAP_CSUM_TCPv6_Rx) && (flags & JME_RD_TCPV6) == JME_RD_TCPV6) { mhead->m_pkthdr.csum_flags |= M_CSUM_TCPv6; if (!(flags & JME_RD_TCPCSUM)) mhead->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD; } if ((ifp->if_capenable & IFCAP_CSUM_UDPv6_Rx) && (flags & JME_RD_UDPV6) == JME_RD_UDPV6) { m->m_pkthdr.csum_flags |= M_CSUM_UDPv6; if (!(flags & JME_RD_UDPCSUM)) mhead->m_pkthdr.csum_flags |= M_CSUM_TCP_UDP_BAD; } if (flags & JME_RD_VLAN_TAG) { /* pass to vlan_input() */ vlan_set_tag(mhead, (flags & JME_RD_VLAN_MASK)); } if_percpuq_enqueue(ifp->if_percpuq, mhead); } if (ipackets) rnd_add_uint32(&sc->rnd_source, ipackets); } static int jme_intr(void *v) { jme_softc_t *sc = v; uint32_t istatus; istatus = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_STATUS); if (istatus == 0 || istatus == 0xFFFFFFFF) return 0; /* Disable interrupts. */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_MASK_CLR, 0xFFFFFFFF); again: /* and update istatus */ istatus = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_STATUS); if ((istatus & JME_INTRS_CHECK) == 0) goto done; /* Reset PCC counter/timer and Ack interrupts. */ if ((istatus & (INTR_TXQ_COMP | INTR_TXQ_COAL | INTR_TXQ_COAL_TO)) != 0) istatus |= INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP; if ((istatus & (INTR_RXQ_COMP | INTR_RXQ_COAL | INTR_RXQ_COAL_TO)) != 0) istatus |= INTR_RXQ_COAL | INTR_RXQ_COAL_TO | INTR_RXQ_COMP; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_STATUS, istatus); if ((sc->jme_if.if_flags & IFF_RUNNING) == 0) goto done; #ifdef JMEDEBUG_RX printf("jme_intr 0x%x RXCS 0x%x RXDBA 0x%x 0x%x RXQDC 0x%x RXNDA 0x%x RXMCS 0x%x\n", istatus, bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXDBA_LO), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXDBA_HI), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXQDC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXNDA), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC)); printf("jme_intr RXUMA 0x%x 0x%x RXMCHT 0x%x 0x%x GHC 0x%x\n", bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR0), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR1), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR0), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR1), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_GHC)); #endif if ((istatus & (INTR_RXQ_COMP | INTR_RXQ_COAL | INTR_RXQ_COAL_TO)) != 0) jme_intr_rx(sc); if ((istatus & INTR_RXQ_DESC_EMPTY) != 0) { /* * Notify hardware availability of new Rx * buffers. * Reading RXCSR takes very long time under * heavy load so cache RXCSR value and writes * the ORed value with the kick command to * the RXCSR. This saves one register access * cycle. */ sc->jme_rx_cons = 0; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXCSR, sc->jme_rxcsr | RXCSR_RX_ENB | RXCSR_RXQ_START); } if ((istatus & (INTR_TXQ_COMP | INTR_TXQ_COAL | INTR_TXQ_COAL_TO)) != 0) jme_ifstart(&sc->jme_if); goto again; done: /* enable interrupts. */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_MASK_SET, JME_INTRS_ENABLE); return 1; } static int jme_ifioctl(struct ifnet *ifp, unsigned long cmd, void *data) { struct jme_softc *sc = ifp->if_softc; int s, error; struct ifreq *ifr; struct ifcapreq *ifcr; s = splnet(); /* * we can't support at the same time jumbo frames and * TX checksums offload/TSO */ switch(cmd) { case SIOCSIFMTU: ifr = data; if (ifr->ifr_mtu > JME_TX_FIFO_SIZE && (ifp->if_capenable & ( IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx| IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx| IFCAP_TSOv4|IFCAP_TSOv6)) != 0) { splx(s); return EINVAL; } break; case SIOCSIFCAP: ifcr = data; if (ifp->if_mtu > JME_TX_FIFO_SIZE && (ifcr->ifcr_capenable & ( IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx| IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx| IFCAP_TSOv4|IFCAP_TSOv6)) != 0) { splx(s); return EINVAL; } break; } error = ether_ioctl(ifp, cmd, data); if (error == ENETRESET && (ifp->if_flags & IFF_RUNNING)) { if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) { jme_set_filter(sc); error = 0; } else { error = jme_init(ifp, 0); } } splx(s); return error; } static int jme_encap(struct jme_softc *sc, struct mbuf **m_head) { struct jme_desc *desc; struct mbuf *m; int error, i, prod, headdsc, nsegs; uint32_t cflags, tso_segsz; if (((*m_head)->m_pkthdr.csum_flags & (M_CSUM_TSOv4|M_CSUM_TSOv6)) != 0){ /* * Due to the adherence to NDIS specification JMC250 * assumes upper stack computed TCP pseudo checksum * without including payload length. This breaks * checksum offload for TSO case so recompute TCP * pseudo checksum for JMC250. Hopefully this wouldn't * be much burden on modern CPUs. */ bool v4 = ((*m_head)->m_pkthdr.csum_flags & M_CSUM_TSOv4) != 0; int iphl = v4 ? M_CSUM_DATA_IPv4_IPHL((*m_head)->m_pkthdr.csum_data) : M_CSUM_DATA_IPv6_HL((*m_head)->m_pkthdr.csum_data); /* * note: we support vlan offloading, so we should never have * a ETHERTYPE_VLAN packet here - so ETHER_HDR_LEN is always * right. */ int hlen = ETHER_HDR_LEN + iphl; if (__predict_false((*m_head)->m_len < (hlen + sizeof(struct tcphdr)))) { /* * TCP/IP headers are not in the first mbuf; we need * to do this the slow and painful way. Let's just * hope this doesn't happen very often. */ struct tcphdr th; m_copydata((*m_head), hlen, sizeof(th), &th); if (v4) { struct ip ip; m_copydata((*m_head), ETHER_HDR_LEN, sizeof(ip), &ip); ip.ip_len = 0; m_copyback((*m_head), ETHER_HDR_LEN + offsetof(struct ip, ip_len), sizeof(ip.ip_len), &ip.ip_len); th.th_sum = in_cksum_phdr(ip.ip_src.s_addr, ip.ip_dst.s_addr, htons(IPPROTO_TCP)); } else { #if INET6 struct ip6_hdr ip6; m_copydata((*m_head), ETHER_HDR_LEN, sizeof(ip6), &ip6); ip6.ip6_plen = 0; m_copyback((*m_head), ETHER_HDR_LEN + offsetof(struct ip6_hdr, ip6_plen), sizeof(ip6.ip6_plen), &ip6.ip6_plen); th.th_sum = in6_cksum_phdr(&ip6.ip6_src, &ip6.ip6_dst, 0, htonl(IPPROTO_TCP)); #endif /* INET6 */ } m_copyback((*m_head), hlen + offsetof(struct tcphdr, th_sum), sizeof(th.th_sum), &th.th_sum); hlen += th.th_off << 2; } else { /* * TCP/IP headers are in the first mbuf; we can do * this the easy way. */ struct tcphdr *th; if (v4) { struct ip *ip = (void *)(mtod((*m_head), char *) + ETHER_HDR_LEN); th = (void *)(mtod((*m_head), char *) + hlen); ip->ip_len = 0; th->th_sum = in_cksum_phdr(ip->ip_src.s_addr, ip->ip_dst.s_addr, htons(IPPROTO_TCP)); } else { #if INET6 struct ip6_hdr *ip6 = (void *)(mtod((*m_head), char *) + ETHER_HDR_LEN); th = (void *)(mtod((*m_head), char *) + hlen); ip6->ip6_plen = 0; th->th_sum = in6_cksum_phdr(&ip6->ip6_src, &ip6->ip6_dst, 0, htonl(IPPROTO_TCP)); #endif /* INET6 */ } hlen += th->th_off << 2; } } prod = sc->jme_tx_prod; error = bus_dmamap_load_mbuf(sc->jme_dmatag, sc->jme_txmbufm[prod], *m_head, BUS_DMA_NOWAIT | BUS_DMA_WRITE); if (error) { if (error == EFBIG) { log(LOG_ERR, "%s: Tx packet consumes too many " "DMA segments, dropping...\n", device_xname(sc->jme_dev)); m_freem(*m_head); *m_head = NULL; } return (error); } /* * Check descriptor overrun. Leave one free descriptor. * Since we always use 64bit address mode for transmitting, * each Tx request requires one more dummy descriptor. */ nsegs = sc->jme_txmbufm[prod]->dm_nsegs; #ifdef JMEDEBUG_TX printf("jme_encap prod %d nsegs %d jme_tx_cnt %d\n", prod, nsegs, sc->jme_tx_cnt); #endif if (sc->jme_tx_cnt + nsegs + 1 > JME_NBUFS - 1) { bus_dmamap_unload(sc->jme_dmatag, sc->jme_txmbufm[prod]); return (ENOBUFS); } bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmbufm[prod], 0, sc->jme_txmbufm[prod]->dm_mapsize, BUS_DMASYNC_PREWRITE); m = *m_head; cflags = 0; tso_segsz = 0; /* Configure checksum offload and TSO. */ if ((m->m_pkthdr.csum_flags & (M_CSUM_TSOv4|M_CSUM_TSOv6)) != 0) { tso_segsz = (uint32_t)m->m_pkthdr.segsz << JME_TD_MSS_SHIFT; cflags |= JME_TD_TSO; } else { if ((m->m_pkthdr.csum_flags & M_CSUM_IPv4) != 0) cflags |= JME_TD_IPCSUM; if ((m->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_TCPv6)) != 0) cflags |= JME_TD_TCPCSUM; if ((m->m_pkthdr.csum_flags & (M_CSUM_UDPv4|M_CSUM_UDPv6)) != 0) cflags |= JME_TD_UDPCSUM; } /* Configure VLAN. */ if (vlan_has_tag(m)) { cflags |= (vlan_get_tag(m) & JME_TD_VLAN_MASK); cflags |= JME_TD_VLAN_TAG; } desc = &sc->jme_txring[prod]; desc->flags = htole32(cflags); desc->buflen = htole32(tso_segsz); desc->addr_hi = htole32(m->m_pkthdr.len); desc->addr_lo = 0; headdsc = prod; sc->jme_tx_cnt++; JME_DESC_INC(prod, JME_NBUFS); for (i = 0; i < nsegs; i++) { desc = &sc->jme_txring[prod]; desc->flags = htole32(JME_TD_OWN | JME_TD_64BIT); desc->buflen = htole32(sc->jme_txmbufm[headdsc]->dm_segs[i].ds_len); desc->addr_hi = htole32( JME_ADDR_HI(sc->jme_txmbufm[headdsc]->dm_segs[i].ds_addr)); desc->addr_lo = htole32( JME_ADDR_LO(sc->jme_txmbufm[headdsc]->dm_segs[i].ds_addr)); bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmap, prod * sizeof(struct jme_desc), sizeof(struct jme_desc), BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); sc->jme_txmbuf[prod] = NULL; sc->jme_tx_cnt++; JME_DESC_INC(prod, JME_NBUFS); } /* Update producer index. */ sc->jme_tx_prod = prod; #ifdef JMEDEBUG_TX printf("jme_encap prod now %d\n", sc->jme_tx_prod); #endif /* * Finally request interrupt and give the first descriptor * owenership to hardware. */ desc = &sc->jme_txring[headdsc]; desc->flags |= htole32(JME_TD_OWN | JME_TD_INTR); bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmap, headdsc * sizeof(struct jme_desc), sizeof(struct jme_desc), BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); sc->jme_txmbuf[headdsc] = m; return (0); } static void jme_txeof(struct jme_softc *sc) { struct ifnet *ifp; struct jme_desc *desc; uint32_t status; int cons, cons0, nsegs, seg; ifp = &sc->jme_if; #ifdef JMEDEBUG_TX printf("jme_txeof cons %d prod %d\n", sc->jme_tx_cons, sc->jme_tx_prod); printf("jme_txeof JME_TXCSR 0x%x JME_TXDBA_LO 0x%x JME_TXDBA_HI 0x%x " "JME_TXQDC 0x%x JME_TXNDA 0x%x JME_TXMAC 0x%x JME_TXPFC 0x%x " "JME_TXTRHD 0x%x\n", bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_LO), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_HI), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXQDC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXNDA), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXMAC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXPFC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD)); for (cons = sc->jme_tx_cons; cons != sc->jme_tx_prod; ) { desc = &sc->jme_txring[cons]; printf("ring[%d] 0x%x 0x%x 0x%x 0x%x\n", cons, desc->flags, desc->buflen, desc->addr_hi, desc->addr_lo); JME_DESC_INC(cons, JME_NBUFS); } #endif cons = sc->jme_tx_cons; if (cons == sc->jme_tx_prod) return; /* * Go through our Tx list and free mbufs for those * frames which have been transmitted. */ for (; cons != sc->jme_tx_prod;) { bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmap, cons * sizeof(struct jme_desc), sizeof(struct jme_desc), BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); desc = &sc->jme_txring[cons]; status = le32toh(desc->flags); #ifdef JMEDEBUG_TX printf("jme_txeof %i status 0x%x nsegs %d\n", cons, status, sc->jme_txmbufm[cons]->dm_nsegs); #endif if (status & JME_TD_OWN) break; if ((status & (JME_TD_TMOUT | JME_TD_RETRY_EXP)) != 0) ifp->if_oerrors++; else { ifp->if_opackets++; if ((status & JME_TD_COLLISION) != 0) ifp->if_collisions += le32toh(desc->buflen) & JME_TD_BUF_LEN_MASK; } /* * Only the first descriptor of multi-descriptor * transmission is updated so driver have to skip entire * chained buffers for the transmiited frame. In other * words, JME_TD_OWN bit is valid only at the first * descriptor of a multi-descriptor transmission. */ nsegs = sc->jme_txmbufm[cons]->dm_nsegs; cons0 = cons; JME_DESC_INC(cons, JME_NBUFS); for (seg = 1; seg < nsegs + 1; seg++) { bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmap, cons * sizeof(struct jme_desc), sizeof(struct jme_desc), BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); sc->jme_txring[cons].flags = 0; JME_DESC_INC(cons, JME_NBUFS); } /* Reclaim transferred mbufs. */ bus_dmamap_sync(sc->jme_dmatag, sc->jme_txmbufm[cons0], 0, sc->jme_txmbufm[cons0]->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->jme_dmatag, sc->jme_txmbufm[cons0]); KASSERT(sc->jme_txmbuf[cons0] != NULL); m_freem(sc->jme_txmbuf[cons0]); sc->jme_txmbuf[cons0] = NULL; sc->jme_tx_cnt -= nsegs + 1; KASSERT(sc->jme_tx_cnt >= 0); sc->jme_if.if_flags &= ~IFF_OACTIVE; } sc->jme_tx_cons = cons; /* Unarm watchog timer when there is no pending descriptors in queue. */ if (sc->jme_tx_cnt == 0) ifp->if_timer = 0; #ifdef JMEDEBUG_TX printf("jme_txeof jme_tx_cnt %d\n", sc->jme_tx_cnt); #endif } static void jme_ifstart(struct ifnet *ifp) { jme_softc_t *sc = ifp->if_softc; struct mbuf *mb_head; int enq; /* * check if we can free some desc. * Clear TX interrupt status to reset TX coalescing counters. */ bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_INTR_STATUS, INTR_TXQ_COMP); jme_txeof(sc); if ((sc->jme_if.if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING) return; for (enq = 0;; enq++) { nexttx: /* Grab a paquet for output */ IFQ_DEQUEUE(&ifp->if_snd, mb_head); if (mb_head == NULL) { #ifdef JMEDEBUG_TX printf("%s: nothing to send\n", __func__); #endif break; } /* try to add this mbuf to the TX ring */ if (jme_encap(sc, &mb_head)) { if (mb_head == NULL) { ifp->if_oerrors++; /* packet dropped, try next one */ goto nexttx; } /* resource shortage, try again later */ IF_PREPEND(&ifp->if_snd, mb_head); ifp->if_flags |= IFF_OACTIVE; break; } /* Pass packet to bpf if there is a listener */ bpf_mtap(ifp, mb_head); } #ifdef JMEDEBUG_TX printf("jme_ifstart enq %d\n", enq); #endif if (enq) { /* * Set a 5 second timer just in case we don't hear from * the card again. */ ifp->if_timer = 5; /* * Reading TXCSR takes very long time under heavy load * so cache TXCSR value and writes the ORed value with * the kick command to the TXCSR. This saves one register * access cycle. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB | TXCSR_TXQ_N_START(TXCSR_TXQ0)); #ifdef JMEDEBUG_TX printf("jme_ifstart JME_TXCSR 0x%x JME_TXDBA_LO 0x%x JME_TXDBA_HI 0x%x " "JME_TXQDC 0x%x JME_TXNDA 0x%x JME_TXMAC 0x%x JME_TXPFC 0x%x " "JME_TXTRHD 0x%x\n", bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXCSR), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_LO), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXDBA_HI), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXQDC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXNDA), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXMAC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXPFC), bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD)); #endif } } static void jme_ifwatchdog(struct ifnet *ifp) { jme_softc_t *sc = ifp->if_softc; if ((ifp->if_flags & IFF_RUNNING) == 0) return; printf("%s: device timeout\n", device_xname(sc->jme_dev)); ifp->if_oerrors++; jme_init(ifp, 0); } static int jme_mediachange(struct ifnet *ifp) { int error; jme_softc_t *sc = ifp->if_softc; if ((error = mii_mediachg(&sc->jme_mii)) == ENXIO) error = 0; else if (error != 0) { aprint_error_dev(sc->jme_dev, "could not set media\n"); return error; } return 0; } static void jme_ticks(void *v) { jme_softc_t *sc = v; int s = splnet(); /* Tick the MII. */ mii_tick(&sc->jme_mii); /* every seconds */ callout_reset(&sc->jme_tick_ch, hz, jme_ticks, sc); splx(s); } static void jme_mac_config(jme_softc_t *sc) { uint32_t ghc, gpreg, rxmac, txmac, txpause; struct mii_data *mii = &sc->jme_mii; ghc = 0; rxmac = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC); rxmac &= ~RXMAC_FC_ENB; txmac = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXMAC); txmac &= ~(TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST); txpause = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXPFC); txpause &= ~TXPFC_PAUSE_ENB; if (mii->mii_media_active & IFM_FDX) { ghc |= GHC_FULL_DUPLEX; rxmac &= ~RXMAC_COLL_DET_ENB; txmac &= ~(TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE | TXMAC_BACKOFF | TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST); /* Disable retry transmit timer/retry limit. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD, bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD) & ~(TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB)); } else { rxmac |= RXMAC_COLL_DET_ENB; txmac |= TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE | TXMAC_BACKOFF; /* Enable retry transmit timer/retry limit. */ bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD, bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXTRHD) | TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB); } /* Reprogram Tx/Rx MACs with resolved speed/duplex. */ switch (IFM_SUBTYPE(mii->mii_media_active)) { case IFM_10_T: ghc |= GHC_SPEED_10 | GHC_CLKSRC_10_100; break; case IFM_100_TX: ghc |= GHC_SPEED_100 | GHC_CLKSRC_10_100; break; case IFM_1000_T: ghc |= GHC_SPEED_1000 | GHC_CLKSRC_1000; if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) == 0) txmac |= TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST; break; default: break; } if ((sc->jme_flags & JME_FLAG_GIGA) && sc->jme_chip_rev == DEVICEREVID_JMC250_A2) { /* * Workaround occasional packet loss issue of JMC250 A2 * when it runs on half-duplex media. */ #ifdef JMEDEBUG printf("JME250 A2 workaround\n"); #endif gpreg = bus_space_read_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_GPREG1); if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) gpreg &= ~GPREG1_HDPX_FIX; else gpreg |= GPREG1_HDPX_FIX; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_GPREG1, gpreg); /* Workaround CRC errors at 100Mbps on JMC250 A2. */ if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) { /* Extend interface FIFO depth. */ jme_mii_write(sc->jme_dev, sc->jme_phyaddr, 0x1B, 0x0000); } else { /* Select default interface FIFO depth. */ jme_mii_write(sc->jme_dev, sc->jme_phyaddr, 0x1B, 0x0004); } } bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_GHC, ghc); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC, rxmac); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXMAC, txmac); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_TXPFC, txpause); } static void jme_set_filter(jme_softc_t *sc) { struct ifnet *ifp = &sc->jme_if; struct ether_multistep step; struct ether_multi *enm; uint32_t hash[2] = {0, 0}; int i; uint32_t rxcfg; rxcfg = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC); rxcfg &= ~ (RXMAC_BROADCAST | RXMAC_PROMISC | RXMAC_MULTICAST | RXMAC_ALLMULTI); /* Always accept frames destined to our station address. */ rxcfg |= RXMAC_UNICAST; if ((ifp->if_flags & IFF_BROADCAST) != 0) rxcfg |= RXMAC_BROADCAST; if ((ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0) { if ((ifp->if_flags & IFF_PROMISC) != 0) rxcfg |= RXMAC_PROMISC; if ((ifp->if_flags & IFF_ALLMULTI) != 0) rxcfg |= RXMAC_ALLMULTI; bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR0, 0xFFFFFFFF); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR1, 0xFFFFFFFF); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC, rxcfg); return; } /* * Set up the multicast address filter by passing all multicast * addresses through a CRC generator, and then using the low-order * 6 bits as an index into the 64 bit multicast hash table. The * high order bits select the register, while the rest of the bits * select the bit within the register. */ rxcfg |= RXMAC_MULTICAST; memset(hash, 0, sizeof(hash)); ETHER_FIRST_MULTI(step, &sc->jme_ec, enm); while (enm != NULL) { #ifdef JEMDBUG printf("%s: addrs %s %s\n", __func__, ether_sprintf(enm->enm_addrlo), ether_sprintf(enm->enm_addrhi)); #endif if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 6) == 0) { i = ether_crc32_be(enm->enm_addrlo, 6); /* Just want the 6 least significant bits. */ i &= 0x3f; hash[i / 32] |= 1 << (i%32); } else { hash[0] = hash[1] = 0xffffffff; sc->jme_if.if_flags |= IFF_ALLMULTI; break; } ETHER_NEXT_MULTI(step, enm); } #ifdef JMEDEBUG printf("%s: hash1 %x has2 %x\n", __func__, hash[0], hash[1]); #endif bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR0, hash[0]); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_MAR1, hash[1]); bus_space_write_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_RXMAC, rxcfg); } #if 0 static int jme_multicast_hash(uint8_t *a) { int hash; #define DA(addr,bit) (addr[5 - (bit / 8)] & (1 << (bit % 8))) #define xor8(a,b,c,d,e,f,g,h) \ (((a != 0) + (b != 0) + (c != 0) + (d != 0) + \ (e != 0) + (f != 0) + (g != 0) + (h != 0)) & 1) hash = xor8(DA(a,0), DA(a, 6), DA(a,12), DA(a,18), DA(a,24), DA(a,30), DA(a,36), DA(a,42)); hash |= xor8(DA(a,1), DA(a, 7), DA(a,13), DA(a,19), DA(a,25), DA(a,31), DA(a,37), DA(a,43)) << 1; hash |= xor8(DA(a,2), DA(a, 8), DA(a,14), DA(a,20), DA(a,26), DA(a,32), DA(a,38), DA(a,44)) << 2; hash |= xor8(DA(a,3), DA(a, 9), DA(a,15), DA(a,21), DA(a,27), DA(a,33), DA(a,39), DA(a,45)) << 3; hash |= xor8(DA(a,4), DA(a,10), DA(a,16), DA(a,22), DA(a,28), DA(a,34), DA(a,40), DA(a,46)) << 4; hash |= xor8(DA(a,5), DA(a,11), DA(a,17), DA(a,23), DA(a,29), DA(a,35), DA(a,41), DA(a,47)) << 5; return hash; } #endif static int jme_eeprom_read_byte(struct jme_softc *sc, uint8_t addr, uint8_t *val) { uint32_t reg; int i; *val = 0; for (i = JME_EEPROM_TIMEOUT / 10; i > 0; i--) { reg = bus_space_read_4(sc->jme_bt_phy, sc->jme_bh_phy, JME_SMBCSR); if ((reg & SMBCSR_HW_BUSY_MASK) == SMBCSR_HW_IDLE) break; delay(10); } if (i == 0) { aprint_error_dev(sc->jme_dev, "EEPROM idle timeout!\n"); return (ETIMEDOUT); } reg = ((uint32_t)addr << SMBINTF_ADDR_SHIFT) & SMBINTF_ADDR_MASK; bus_space_write_4(sc->jme_bt_phy, sc->jme_bh_phy, JME_SMBINTF, reg | SMBINTF_RD | SMBINTF_CMD_TRIGGER); for (i = JME_EEPROM_TIMEOUT / 10; i > 0; i--) { delay(10); reg = bus_space_read_4(sc->jme_bt_phy, sc->jme_bh_phy, JME_SMBINTF); if ((reg & SMBINTF_CMD_TRIGGER) == 0) break; } if (i == 0) { aprint_error_dev(sc->jme_dev, "EEPROM read timeout!\n"); return (ETIMEDOUT); } reg = bus_space_read_4(sc->jme_bt_phy, sc->jme_bh_phy, JME_SMBINTF); *val = (reg & SMBINTF_RD_DATA_MASK) >> SMBINTF_RD_DATA_SHIFT; return (0); } static int jme_eeprom_macaddr(struct jme_softc *sc) { uint8_t eaddr[ETHER_ADDR_LEN]; uint8_t fup, reg, val; uint32_t offset; int match; offset = 0; if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 || fup != JME_EEPROM_SIG0) return (ENOENT); if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 || fup != JME_EEPROM_SIG1) return (ENOENT); match = 0; do { if (jme_eeprom_read_byte(sc, offset, &fup) != 0) break; if (JME_EEPROM_MKDESC(JME_EEPROM_FUNC0, JME_EEPROM_PAGE_BAR1) == (fup & (JME_EEPROM_FUNC_MASK|JME_EEPROM_PAGE_MASK))) { if (jme_eeprom_read_byte(sc, offset + 1, ®) != 0) break; if (reg >= JME_PAR0 && reg < JME_PAR0 + ETHER_ADDR_LEN) { if (jme_eeprom_read_byte(sc, offset + 2, &val) != 0) break; eaddr[reg - JME_PAR0] = val; match++; } } if (fup & JME_EEPROM_DESC_END) break; /* Try next eeprom descriptor. */ offset += JME_EEPROM_DESC_BYTES; } while (match != ETHER_ADDR_LEN && offset < JME_EEPROM_END); if (match == ETHER_ADDR_LEN) { memcpy(sc->jme_enaddr, eaddr, ETHER_ADDR_LEN); return (0); } return (ENOENT); } static int jme_reg_macaddr(struct jme_softc *sc) { uint32_t par0, par1; par0 = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR0); par1 = bus_space_read_4(sc->jme_bt_mac, sc->jme_bh_mac, JME_PAR1); par1 &= 0xffff; if ((par0 == 0 && par1 == 0) || (par0 == 0xffffffff && par1 == 0xffff)) { return (ENOENT); } else { sc->jme_enaddr[0] = (par0 >> 0) & 0xff; sc->jme_enaddr[1] = (par0 >> 8) & 0xff; sc->jme_enaddr[2] = (par0 >> 16) & 0xff; sc->jme_enaddr[3] = (par0 >> 24) & 0xff; sc->jme_enaddr[4] = (par1 >> 0) & 0xff; sc->jme_enaddr[5] = (par1 >> 8) & 0xff; } return (0); } /* * Set up sysctl(3) MIB, hw.jme.* - Individual controllers will be * set up in jme_pci_attach() */ SYSCTL_SETUP(sysctl_jme, "sysctl jme subtree setup") { int rc; const struct sysctlnode *node; if ((rc = sysctl_createv(clog, 0, NULL, &node, 0, CTLTYPE_NODE, "jme", SYSCTL_DESCR("jme interface controls"), NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { goto err; } jme_root_num = node->sysctl_num; return; err: aprint_error("%s: syctl_createv failed (rc = %d)\n", __func__, rc); } static int jme_sysctl_intrxto(SYSCTLFN_ARGS) { int error, t; struct sysctlnode node; struct jme_softc *sc; uint32_t reg; node = *rnode; sc = node.sysctl_data; t = sc->jme_intrxto; node.sysctl_data = &t; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (t < PCCRX_COAL_TO_MIN || t > PCCRX_COAL_TO_MAX) return EINVAL; /* * update the softc with sysctl-changed value, and mark * for hardware update */ sc->jme_intrxto = t; /* Configure Rx queue 0 packet completion coalescing. */ reg = (sc->jme_intrxto << PCCRX_COAL_TO_SHIFT) & PCCRX_COAL_TO_MASK; reg |= (sc->jme_intrxct << PCCRX_COAL_PKT_SHIFT) & PCCRX_COAL_PKT_MASK; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCRX0, reg); return 0; } static int jme_sysctl_intrxct(SYSCTLFN_ARGS) { int error, t; struct sysctlnode node; struct jme_softc *sc; uint32_t reg; node = *rnode; sc = node.sysctl_data; t = sc->jme_intrxct; node.sysctl_data = &t; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (t < PCCRX_COAL_PKT_MIN || t > PCCRX_COAL_PKT_MAX) return EINVAL; /* * update the softc with sysctl-changed value, and mark * for hardware update */ sc->jme_intrxct = t; /* Configure Rx queue 0 packet completion coalescing. */ reg = (sc->jme_intrxto << PCCRX_COAL_TO_SHIFT) & PCCRX_COAL_TO_MASK; reg |= (sc->jme_intrxct << PCCRX_COAL_PKT_SHIFT) & PCCRX_COAL_PKT_MASK; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCRX0, reg); return 0; } static int jme_sysctl_inttxto(SYSCTLFN_ARGS) { int error, t; struct sysctlnode node; struct jme_softc *sc; uint32_t reg; node = *rnode; sc = node.sysctl_data; t = sc->jme_inttxto; node.sysctl_data = &t; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (t < PCCTX_COAL_TO_MIN || t > PCCTX_COAL_TO_MAX) return EINVAL; /* * update the softc with sysctl-changed value, and mark * for hardware update */ sc->jme_inttxto = t; /* Configure Tx queue 0 packet completion coalescing. */ reg = (sc->jme_inttxto << PCCTX_COAL_TO_SHIFT) & PCCTX_COAL_TO_MASK; reg |= (sc->jme_inttxct << PCCTX_COAL_PKT_SHIFT) & PCCTX_COAL_PKT_MASK; reg |= PCCTX_COAL_TXQ0; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCTX, reg); return 0; } static int jme_sysctl_inttxct(SYSCTLFN_ARGS) { int error, t; struct sysctlnode node; struct jme_softc *sc; uint32_t reg; node = *rnode; sc = node.sysctl_data; t = sc->jme_inttxct; node.sysctl_data = &t; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (t < PCCTX_COAL_PKT_MIN || t > PCCTX_COAL_PKT_MAX) return EINVAL; /* * update the softc with sysctl-changed value, and mark * for hardware update */ sc->jme_inttxct = t; /* Configure Tx queue 0 packet completion coalescing. */ reg = (sc->jme_inttxto << PCCTX_COAL_TO_SHIFT) & PCCTX_COAL_TO_MASK; reg |= (sc->jme_inttxct << PCCTX_COAL_PKT_SHIFT) & PCCTX_COAL_PKT_MASK; reg |= PCCTX_COAL_TXQ0; bus_space_write_4(sc->jme_bt_misc, sc->jme_bh_misc, JME_PCCTX, reg); return 0; }