13c6e15bcSPyun YongHyeon /*- 23c6e15bcSPyun YongHyeon * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> 33c6e15bcSPyun YongHyeon * All rights reserved. 43c6e15bcSPyun YongHyeon * 53c6e15bcSPyun YongHyeon * Redistribution and use in source and binary forms, with or without 63c6e15bcSPyun YongHyeon * modification, are permitted provided that the following conditions 73c6e15bcSPyun YongHyeon * are met: 83c6e15bcSPyun YongHyeon * 1. Redistributions of source code must retain the above copyright 93c6e15bcSPyun YongHyeon * notice unmodified, this list of conditions, and the following 103c6e15bcSPyun YongHyeon * disclaimer. 113c6e15bcSPyun YongHyeon * 2. Redistributions in binary form must reproduce the above copyright 123c6e15bcSPyun YongHyeon * notice, this list of conditions and the following disclaimer in the 133c6e15bcSPyun YongHyeon * documentation and/or other materials provided with the distribution. 143c6e15bcSPyun YongHyeon * 153c6e15bcSPyun YongHyeon * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 163c6e15bcSPyun YongHyeon * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 173c6e15bcSPyun YongHyeon * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 183c6e15bcSPyun YongHyeon * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 193c6e15bcSPyun YongHyeon * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 203c6e15bcSPyun YongHyeon * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 213c6e15bcSPyun YongHyeon * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 223c6e15bcSPyun YongHyeon * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 233c6e15bcSPyun YongHyeon * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 243c6e15bcSPyun YongHyeon * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 253c6e15bcSPyun YongHyeon * SUCH DAMAGE. 263c6e15bcSPyun YongHyeon */ 273c6e15bcSPyun YongHyeon 283c6e15bcSPyun YongHyeon /* Driver for Atheros AR8121/AR8113/AR8114 PCIe Ethernet. */ 293c6e15bcSPyun YongHyeon 303c6e15bcSPyun YongHyeon #include <sys/cdefs.h> 313c6e15bcSPyun YongHyeon __FBSDID("$FreeBSD$"); 323c6e15bcSPyun YongHyeon 333c6e15bcSPyun YongHyeon #include <sys/param.h> 343c6e15bcSPyun YongHyeon #include <sys/systm.h> 353c6e15bcSPyun YongHyeon #include <sys/bus.h> 363c6e15bcSPyun YongHyeon #include <sys/endian.h> 373c6e15bcSPyun YongHyeon #include <sys/kernel.h> 383c6e15bcSPyun YongHyeon #include <sys/malloc.h> 393c6e15bcSPyun YongHyeon #include <sys/mbuf.h> 403c6e15bcSPyun YongHyeon #include <sys/module.h> 413c6e15bcSPyun YongHyeon #include <sys/rman.h> 423c6e15bcSPyun YongHyeon #include <sys/queue.h> 433c6e15bcSPyun YongHyeon #include <sys/socket.h> 443c6e15bcSPyun YongHyeon #include <sys/sockio.h> 453c6e15bcSPyun YongHyeon #include <sys/sysctl.h> 463c6e15bcSPyun YongHyeon #include <sys/taskqueue.h> 473c6e15bcSPyun YongHyeon 483c6e15bcSPyun YongHyeon #include <net/bpf.h> 493c6e15bcSPyun YongHyeon #include <net/if.h> 5076039bc8SGleb Smirnoff #include <net/if_var.h> 513c6e15bcSPyun YongHyeon #include <net/if_arp.h> 523c6e15bcSPyun YongHyeon #include <net/ethernet.h> 533c6e15bcSPyun YongHyeon #include <net/if_dl.h> 543c6e15bcSPyun YongHyeon #include <net/if_llc.h> 553c6e15bcSPyun YongHyeon #include <net/if_media.h> 563c6e15bcSPyun YongHyeon #include <net/if_types.h> 573c6e15bcSPyun YongHyeon #include <net/if_vlan_var.h> 583c6e15bcSPyun YongHyeon 593c6e15bcSPyun YongHyeon #include <netinet/in.h> 603c6e15bcSPyun YongHyeon #include <netinet/in_systm.h> 613c6e15bcSPyun YongHyeon #include <netinet/ip.h> 623c6e15bcSPyun YongHyeon #include <netinet/tcp.h> 633c6e15bcSPyun YongHyeon 643c6e15bcSPyun YongHyeon #include <dev/mii/mii.h> 653c6e15bcSPyun YongHyeon #include <dev/mii/miivar.h> 663c6e15bcSPyun YongHyeon 673c6e15bcSPyun YongHyeon #include <dev/pci/pcireg.h> 683c6e15bcSPyun YongHyeon #include <dev/pci/pcivar.h> 693c6e15bcSPyun YongHyeon 703c6e15bcSPyun YongHyeon #include <machine/bus.h> 713c6e15bcSPyun YongHyeon #include <machine/in_cksum.h> 723c6e15bcSPyun YongHyeon 733c6e15bcSPyun YongHyeon #include <dev/ale/if_alereg.h> 743c6e15bcSPyun YongHyeon #include <dev/ale/if_alevar.h> 753c6e15bcSPyun YongHyeon 763c6e15bcSPyun YongHyeon /* "device miibus" required. See GENERIC if you get errors here. */ 773c6e15bcSPyun YongHyeon #include "miibus_if.h" 783c6e15bcSPyun YongHyeon 793c6e15bcSPyun YongHyeon /* For more information about Tx checksum offload issues see ale_encap(). */ 803c6e15bcSPyun YongHyeon #define ALE_CSUM_FEATURES (CSUM_TCP | CSUM_UDP) 813c6e15bcSPyun YongHyeon 823c6e15bcSPyun YongHyeon MODULE_DEPEND(ale, pci, 1, 1, 1); 833c6e15bcSPyun YongHyeon MODULE_DEPEND(ale, ether, 1, 1, 1); 843c6e15bcSPyun YongHyeon MODULE_DEPEND(ale, miibus, 1, 1, 1); 853c6e15bcSPyun YongHyeon 863c6e15bcSPyun YongHyeon /* Tunables. */ 873c6e15bcSPyun YongHyeon static int msi_disable = 0; 883c6e15bcSPyun YongHyeon static int msix_disable = 0; 893c6e15bcSPyun YongHyeon TUNABLE_INT("hw.ale.msi_disable", &msi_disable); 903c6e15bcSPyun YongHyeon TUNABLE_INT("hw.ale.msix_disable", &msix_disable); 913c6e15bcSPyun YongHyeon 923c6e15bcSPyun YongHyeon /* 933c6e15bcSPyun YongHyeon * Devices supported by this driver. 943c6e15bcSPyun YongHyeon */ 9526a93551SMarius Strobl static const struct ale_dev { 963c6e15bcSPyun YongHyeon uint16_t ale_vendorid; 973c6e15bcSPyun YongHyeon uint16_t ale_deviceid; 983c6e15bcSPyun YongHyeon const char *ale_name; 9929658c96SDimitry Andric } ale_devs[] = { 1003c6e15bcSPyun YongHyeon { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR81XX, 1013c6e15bcSPyun YongHyeon "Atheros AR8121/AR8113/AR8114 PCIe Ethernet" }, 1023c6e15bcSPyun YongHyeon }; 1033c6e15bcSPyun YongHyeon 1043c6e15bcSPyun YongHyeon static int ale_attach(device_t); 1053c6e15bcSPyun YongHyeon static int ale_check_boundary(struct ale_softc *); 1063c6e15bcSPyun YongHyeon static int ale_detach(device_t); 1073c6e15bcSPyun YongHyeon static int ale_dma_alloc(struct ale_softc *); 1083c6e15bcSPyun YongHyeon static void ale_dma_free(struct ale_softc *); 1093c6e15bcSPyun YongHyeon static void ale_dmamap_cb(void *, bus_dma_segment_t *, int, int); 1103c6e15bcSPyun YongHyeon static int ale_encap(struct ale_softc *, struct mbuf **); 1113c6e15bcSPyun YongHyeon static void ale_get_macaddr(struct ale_softc *); 1123c6e15bcSPyun YongHyeon static void ale_init(void *); 1133c6e15bcSPyun YongHyeon static void ale_init_locked(struct ale_softc *); 1143c6e15bcSPyun YongHyeon static void ale_init_rx_pages(struct ale_softc *); 1153c6e15bcSPyun YongHyeon static void ale_init_tx_ring(struct ale_softc *); 1163c6e15bcSPyun YongHyeon static void ale_int_task(void *, int); 1173c6e15bcSPyun YongHyeon static int ale_intr(void *); 1183c6e15bcSPyun YongHyeon static int ale_ioctl(struct ifnet *, u_long, caddr_t); 1193c6e15bcSPyun YongHyeon static void ale_mac_config(struct ale_softc *); 1203c6e15bcSPyun YongHyeon static int ale_miibus_readreg(device_t, int, int); 1213c6e15bcSPyun YongHyeon static void ale_miibus_statchg(device_t); 1223c6e15bcSPyun YongHyeon static int ale_miibus_writereg(device_t, int, int, int); 1233c6e15bcSPyun YongHyeon static int ale_mediachange(struct ifnet *); 1243c6e15bcSPyun YongHyeon static void ale_mediastatus(struct ifnet *, struct ifmediareq *); 1253c6e15bcSPyun YongHyeon static void ale_phy_reset(struct ale_softc *); 1263c6e15bcSPyun YongHyeon static int ale_probe(device_t); 1273c6e15bcSPyun YongHyeon static void ale_reset(struct ale_softc *); 1283c6e15bcSPyun YongHyeon static int ale_resume(device_t); 1293c6e15bcSPyun YongHyeon static void ale_rx_update_page(struct ale_softc *, struct ale_rx_page **, 1303c6e15bcSPyun YongHyeon uint32_t, uint32_t *); 1313c6e15bcSPyun YongHyeon static void ale_rxcsum(struct ale_softc *, struct mbuf *, uint32_t); 1323c6e15bcSPyun YongHyeon static int ale_rxeof(struct ale_softc *sc, int); 1333c6e15bcSPyun YongHyeon static void ale_rxfilter(struct ale_softc *); 1343c6e15bcSPyun YongHyeon static void ale_rxvlan(struct ale_softc *); 1353c6e15bcSPyun YongHyeon static void ale_setlinkspeed(struct ale_softc *); 1363c6e15bcSPyun YongHyeon static void ale_setwol(struct ale_softc *); 1373c6e15bcSPyun YongHyeon static int ale_shutdown(device_t); 1383c6e15bcSPyun YongHyeon static void ale_start(struct ifnet *); 13932341ad6SJohn Baldwin static void ale_start_locked(struct ifnet *); 1403c6e15bcSPyun YongHyeon static void ale_stats_clear(struct ale_softc *); 1413c6e15bcSPyun YongHyeon static void ale_stats_update(struct ale_softc *); 1423c6e15bcSPyun YongHyeon static void ale_stop(struct ale_softc *); 1433c6e15bcSPyun YongHyeon static void ale_stop_mac(struct ale_softc *); 1443c6e15bcSPyun YongHyeon static int ale_suspend(device_t); 1453c6e15bcSPyun YongHyeon static void ale_sysctl_node(struct ale_softc *); 1463c6e15bcSPyun YongHyeon static void ale_tick(void *); 1473c6e15bcSPyun YongHyeon static void ale_txeof(struct ale_softc *); 1483c6e15bcSPyun YongHyeon static void ale_watchdog(struct ale_softc *); 1493c6e15bcSPyun YongHyeon static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int); 1503c6e15bcSPyun YongHyeon static int sysctl_hw_ale_proc_limit(SYSCTL_HANDLER_ARGS); 1513c6e15bcSPyun YongHyeon static int sysctl_hw_ale_int_mod(SYSCTL_HANDLER_ARGS); 1523c6e15bcSPyun YongHyeon 1533c6e15bcSPyun YongHyeon static device_method_t ale_methods[] = { 1543c6e15bcSPyun YongHyeon /* Device interface. */ 1553c6e15bcSPyun YongHyeon DEVMETHOD(device_probe, ale_probe), 1563c6e15bcSPyun YongHyeon DEVMETHOD(device_attach, ale_attach), 1573c6e15bcSPyun YongHyeon DEVMETHOD(device_detach, ale_detach), 1583c6e15bcSPyun YongHyeon DEVMETHOD(device_shutdown, ale_shutdown), 1593c6e15bcSPyun YongHyeon DEVMETHOD(device_suspend, ale_suspend), 1603c6e15bcSPyun YongHyeon DEVMETHOD(device_resume, ale_resume), 1613c6e15bcSPyun YongHyeon 1623c6e15bcSPyun YongHyeon /* MII interface. */ 1633c6e15bcSPyun YongHyeon DEVMETHOD(miibus_readreg, ale_miibus_readreg), 1643c6e15bcSPyun YongHyeon DEVMETHOD(miibus_writereg, ale_miibus_writereg), 1653c6e15bcSPyun YongHyeon DEVMETHOD(miibus_statchg, ale_miibus_statchg), 1663c6e15bcSPyun YongHyeon 16726a93551SMarius Strobl DEVMETHOD_END 1683c6e15bcSPyun YongHyeon }; 1693c6e15bcSPyun YongHyeon 1703c6e15bcSPyun YongHyeon static driver_t ale_driver = { 1713c6e15bcSPyun YongHyeon "ale", 1723c6e15bcSPyun YongHyeon ale_methods, 1733c6e15bcSPyun YongHyeon sizeof(struct ale_softc) 1743c6e15bcSPyun YongHyeon }; 1753c6e15bcSPyun YongHyeon 1763c6e15bcSPyun YongHyeon static devclass_t ale_devclass; 1773c6e15bcSPyun YongHyeon 17826a93551SMarius Strobl DRIVER_MODULE(ale, pci, ale_driver, ale_devclass, NULL, NULL); 17926a93551SMarius Strobl DRIVER_MODULE(miibus, ale, miibus_driver, miibus_devclass, NULL, NULL); 1803c6e15bcSPyun YongHyeon 1813c6e15bcSPyun YongHyeon static struct resource_spec ale_res_spec_mem[] = { 1823c6e15bcSPyun YongHyeon { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE }, 1833c6e15bcSPyun YongHyeon { -1, 0, 0 } 1843c6e15bcSPyun YongHyeon }; 1853c6e15bcSPyun YongHyeon 1863c6e15bcSPyun YongHyeon static struct resource_spec ale_irq_spec_legacy[] = { 1873c6e15bcSPyun YongHyeon { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 1883c6e15bcSPyun YongHyeon { -1, 0, 0 } 1893c6e15bcSPyun YongHyeon }; 1903c6e15bcSPyun YongHyeon 1913c6e15bcSPyun YongHyeon static struct resource_spec ale_irq_spec_msi[] = { 1923c6e15bcSPyun YongHyeon { SYS_RES_IRQ, 1, RF_ACTIVE }, 1933c6e15bcSPyun YongHyeon { -1, 0, 0 } 1943c6e15bcSPyun YongHyeon }; 1953c6e15bcSPyun YongHyeon 1963c6e15bcSPyun YongHyeon static struct resource_spec ale_irq_spec_msix[] = { 1973c6e15bcSPyun YongHyeon { SYS_RES_IRQ, 1, RF_ACTIVE }, 1983c6e15bcSPyun YongHyeon { -1, 0, 0 } 1993c6e15bcSPyun YongHyeon }; 2003c6e15bcSPyun YongHyeon 2013c6e15bcSPyun YongHyeon static int 2023c6e15bcSPyun YongHyeon ale_miibus_readreg(device_t dev, int phy, int reg) 2033c6e15bcSPyun YongHyeon { 2043c6e15bcSPyun YongHyeon struct ale_softc *sc; 2053c6e15bcSPyun YongHyeon uint32_t v; 2063c6e15bcSPyun YongHyeon int i; 2073c6e15bcSPyun YongHyeon 2083c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 2093c6e15bcSPyun YongHyeon 2103c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ | 2113c6e15bcSPyun YongHyeon MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 2123c6e15bcSPyun YongHyeon for (i = ALE_PHY_TIMEOUT; i > 0; i--) { 2133c6e15bcSPyun YongHyeon DELAY(5); 2143c6e15bcSPyun YongHyeon v = CSR_READ_4(sc, ALE_MDIO); 2153c6e15bcSPyun YongHyeon if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 2163c6e15bcSPyun YongHyeon break; 2173c6e15bcSPyun YongHyeon } 2183c6e15bcSPyun YongHyeon 2193c6e15bcSPyun YongHyeon if (i == 0) { 2203c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "phy read timeout : %d\n", reg); 2213c6e15bcSPyun YongHyeon return (0); 2223c6e15bcSPyun YongHyeon } 2233c6e15bcSPyun YongHyeon 2243c6e15bcSPyun YongHyeon return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT); 2253c6e15bcSPyun YongHyeon } 2263c6e15bcSPyun YongHyeon 2273c6e15bcSPyun YongHyeon static int 2283c6e15bcSPyun YongHyeon ale_miibus_writereg(device_t dev, int phy, int reg, int val) 2293c6e15bcSPyun YongHyeon { 2303c6e15bcSPyun YongHyeon struct ale_softc *sc; 2313c6e15bcSPyun YongHyeon uint32_t v; 2323c6e15bcSPyun YongHyeon int i; 2333c6e15bcSPyun YongHyeon 2343c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 2353c6e15bcSPyun YongHyeon 2363c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE | 2373c6e15bcSPyun YongHyeon (val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT | 2383c6e15bcSPyun YongHyeon MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 2393c6e15bcSPyun YongHyeon for (i = ALE_PHY_TIMEOUT; i > 0; i--) { 2403c6e15bcSPyun YongHyeon DELAY(5); 2413c6e15bcSPyun YongHyeon v = CSR_READ_4(sc, ALE_MDIO); 2423c6e15bcSPyun YongHyeon if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 2433c6e15bcSPyun YongHyeon break; 2443c6e15bcSPyun YongHyeon } 2453c6e15bcSPyun YongHyeon 2463c6e15bcSPyun YongHyeon if (i == 0) 2473c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "phy write timeout : %d\n", reg); 2483c6e15bcSPyun YongHyeon 2493c6e15bcSPyun YongHyeon return (0); 2503c6e15bcSPyun YongHyeon } 2513c6e15bcSPyun YongHyeon 2523c6e15bcSPyun YongHyeon static void 2533c6e15bcSPyun YongHyeon ale_miibus_statchg(device_t dev) 2543c6e15bcSPyun YongHyeon { 2553c6e15bcSPyun YongHyeon struct ale_softc *sc; 2562b6f7122SPyun YongHyeon struct mii_data *mii; 2572b6f7122SPyun YongHyeon struct ifnet *ifp; 2582b6f7122SPyun YongHyeon uint32_t reg; 2593c6e15bcSPyun YongHyeon 2603c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 2612b6f7122SPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 2622b6f7122SPyun YongHyeon ifp = sc->ale_ifp; 2632b6f7122SPyun YongHyeon if (mii == NULL || ifp == NULL || 2642b6f7122SPyun YongHyeon (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 2652b6f7122SPyun YongHyeon return; 2663c6e15bcSPyun YongHyeon 2672b6f7122SPyun YongHyeon sc->ale_flags &= ~ALE_FLAG_LINK; 2682b6f7122SPyun YongHyeon if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 2692b6f7122SPyun YongHyeon (IFM_ACTIVE | IFM_AVALID)) { 2702b6f7122SPyun YongHyeon switch (IFM_SUBTYPE(mii->mii_media_active)) { 2712b6f7122SPyun YongHyeon case IFM_10_T: 2722b6f7122SPyun YongHyeon case IFM_100_TX: 2732b6f7122SPyun YongHyeon sc->ale_flags |= ALE_FLAG_LINK; 2742b6f7122SPyun YongHyeon break; 2752b6f7122SPyun YongHyeon case IFM_1000_T: 2762b6f7122SPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_FASTETHER) == 0) 2772b6f7122SPyun YongHyeon sc->ale_flags |= ALE_FLAG_LINK; 2782b6f7122SPyun YongHyeon break; 2792b6f7122SPyun YongHyeon default: 2802b6f7122SPyun YongHyeon break; 2812b6f7122SPyun YongHyeon } 2822b6f7122SPyun YongHyeon } 2832b6f7122SPyun YongHyeon 2842b6f7122SPyun YongHyeon /* Stop Rx/Tx MACs. */ 2852b6f7122SPyun YongHyeon ale_stop_mac(sc); 2862b6f7122SPyun YongHyeon 2872b6f7122SPyun YongHyeon /* Program MACs with resolved speed/duplex/flow-control. */ 2882b6f7122SPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_LINK) != 0) { 2892b6f7122SPyun YongHyeon ale_mac_config(sc); 2902b6f7122SPyun YongHyeon /* Reenable Tx/Rx MACs. */ 2912b6f7122SPyun YongHyeon reg = CSR_READ_4(sc, ALE_MAC_CFG); 2922b6f7122SPyun YongHyeon reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB; 2932b6f7122SPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 2942b6f7122SPyun YongHyeon } 2953c6e15bcSPyun YongHyeon } 2963c6e15bcSPyun YongHyeon 2973c6e15bcSPyun YongHyeon static void 2983c6e15bcSPyun YongHyeon ale_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 2993c6e15bcSPyun YongHyeon { 3003c6e15bcSPyun YongHyeon struct ale_softc *sc; 3013c6e15bcSPyun YongHyeon struct mii_data *mii; 3023c6e15bcSPyun YongHyeon 3033c6e15bcSPyun YongHyeon sc = ifp->if_softc; 3043c6e15bcSPyun YongHyeon ALE_LOCK(sc); 305fd3d448fSPyun YongHyeon if ((ifp->if_flags & IFF_UP) == 0) { 306fd3d448fSPyun YongHyeon ALE_UNLOCK(sc); 307fd3d448fSPyun YongHyeon return; 308fd3d448fSPyun YongHyeon } 3093c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 3103c6e15bcSPyun YongHyeon 3113c6e15bcSPyun YongHyeon mii_pollstat(mii); 3123c6e15bcSPyun YongHyeon ifmr->ifm_status = mii->mii_media_status; 3133c6e15bcSPyun YongHyeon ifmr->ifm_active = mii->mii_media_active; 31457c81d92SPyun YongHyeon ALE_UNLOCK(sc); 3153c6e15bcSPyun YongHyeon } 3163c6e15bcSPyun YongHyeon 3173c6e15bcSPyun YongHyeon static int 3183c6e15bcSPyun YongHyeon ale_mediachange(struct ifnet *ifp) 3193c6e15bcSPyun YongHyeon { 3203c6e15bcSPyun YongHyeon struct ale_softc *sc; 3213c6e15bcSPyun YongHyeon struct mii_data *mii; 3223c6e15bcSPyun YongHyeon struct mii_softc *miisc; 3233c6e15bcSPyun YongHyeon int error; 3243c6e15bcSPyun YongHyeon 3253c6e15bcSPyun YongHyeon sc = ifp->if_softc; 3263c6e15bcSPyun YongHyeon ALE_LOCK(sc); 3273c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 3283c6e15bcSPyun YongHyeon LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 3293fcb7a53SMarius Strobl PHY_RESET(miisc); 3303c6e15bcSPyun YongHyeon error = mii_mediachg(mii); 3313c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 3323c6e15bcSPyun YongHyeon 3333c6e15bcSPyun YongHyeon return (error); 3343c6e15bcSPyun YongHyeon } 3353c6e15bcSPyun YongHyeon 3363c6e15bcSPyun YongHyeon static int 3373c6e15bcSPyun YongHyeon ale_probe(device_t dev) 3383c6e15bcSPyun YongHyeon { 33926a93551SMarius Strobl const struct ale_dev *sp; 3403c6e15bcSPyun YongHyeon int i; 3413c6e15bcSPyun YongHyeon uint16_t vendor, devid; 3423c6e15bcSPyun YongHyeon 3433c6e15bcSPyun YongHyeon vendor = pci_get_vendor(dev); 3443c6e15bcSPyun YongHyeon devid = pci_get_device(dev); 3453c6e15bcSPyun YongHyeon sp = ale_devs; 346*73a1170aSPedro F. Giffuni for (i = 0; i < nitems(ale_devs); i++) { 3473c6e15bcSPyun YongHyeon if (vendor == sp->ale_vendorid && 3483c6e15bcSPyun YongHyeon devid == sp->ale_deviceid) { 3493c6e15bcSPyun YongHyeon device_set_desc(dev, sp->ale_name); 3503c6e15bcSPyun YongHyeon return (BUS_PROBE_DEFAULT); 3513c6e15bcSPyun YongHyeon } 3523c6e15bcSPyun YongHyeon sp++; 3533c6e15bcSPyun YongHyeon } 3543c6e15bcSPyun YongHyeon 3553c6e15bcSPyun YongHyeon return (ENXIO); 3563c6e15bcSPyun YongHyeon } 3573c6e15bcSPyun YongHyeon 3583c6e15bcSPyun YongHyeon static void 3593c6e15bcSPyun YongHyeon ale_get_macaddr(struct ale_softc *sc) 3603c6e15bcSPyun YongHyeon { 3613c6e15bcSPyun YongHyeon uint32_t ea[2], reg; 3623c6e15bcSPyun YongHyeon int i, vpdc; 3633c6e15bcSPyun YongHyeon 3643c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_SPI_CTRL); 3653c6e15bcSPyun YongHyeon if ((reg & SPI_VPD_ENB) != 0) { 3663c6e15bcSPyun YongHyeon reg &= ~SPI_VPD_ENB; 3673c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_SPI_CTRL, reg); 3683c6e15bcSPyun YongHyeon } 3693c6e15bcSPyun YongHyeon 3703b0a4aefSJohn Baldwin if (pci_find_cap(sc->ale_dev, PCIY_VPD, &vpdc) == 0) { 3713c6e15bcSPyun YongHyeon /* 3723c6e15bcSPyun YongHyeon * PCI VPD capability found, let TWSI reload EEPROM. 3733c6e15bcSPyun YongHyeon * This will set ethernet address of controller. 3743c6e15bcSPyun YongHyeon */ 3753c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TWSI_CTRL, CSR_READ_4(sc, ALE_TWSI_CTRL) | 3763c6e15bcSPyun YongHyeon TWSI_CTRL_SW_LD_START); 3773c6e15bcSPyun YongHyeon for (i = 100; i > 0; i--) { 3783c6e15bcSPyun YongHyeon DELAY(1000); 3793c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_TWSI_CTRL); 3803c6e15bcSPyun YongHyeon if ((reg & TWSI_CTRL_SW_LD_START) == 0) 3813c6e15bcSPyun YongHyeon break; 3823c6e15bcSPyun YongHyeon } 3833c6e15bcSPyun YongHyeon if (i == 0) 3843c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 3853c6e15bcSPyun YongHyeon "reloading EEPROM timeout!\n"); 3863c6e15bcSPyun YongHyeon } else { 3873c6e15bcSPyun YongHyeon if (bootverbose) 3883c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 3893c6e15bcSPyun YongHyeon "PCI VPD capability not found!\n"); 3903c6e15bcSPyun YongHyeon } 3913c6e15bcSPyun YongHyeon 3923c6e15bcSPyun YongHyeon ea[0] = CSR_READ_4(sc, ALE_PAR0); 3933c6e15bcSPyun YongHyeon ea[1] = CSR_READ_4(sc, ALE_PAR1); 3943c6e15bcSPyun YongHyeon sc->ale_eaddr[0] = (ea[1] >> 8) & 0xFF; 3953c6e15bcSPyun YongHyeon sc->ale_eaddr[1] = (ea[1] >> 0) & 0xFF; 3963c6e15bcSPyun YongHyeon sc->ale_eaddr[2] = (ea[0] >> 24) & 0xFF; 3973c6e15bcSPyun YongHyeon sc->ale_eaddr[3] = (ea[0] >> 16) & 0xFF; 3983c6e15bcSPyun YongHyeon sc->ale_eaddr[4] = (ea[0] >> 8) & 0xFF; 3993c6e15bcSPyun YongHyeon sc->ale_eaddr[5] = (ea[0] >> 0) & 0xFF; 4003c6e15bcSPyun YongHyeon } 4013c6e15bcSPyun YongHyeon 4023c6e15bcSPyun YongHyeon static void 4033c6e15bcSPyun YongHyeon ale_phy_reset(struct ale_softc *sc) 4043c6e15bcSPyun YongHyeon { 4053c6e15bcSPyun YongHyeon 4063c6e15bcSPyun YongHyeon /* Reset magic from Linux. */ 4073c6e15bcSPyun YongHyeon CSR_WRITE_2(sc, ALE_GPHY_CTRL, 4083c6e15bcSPyun YongHyeon GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE | GPHY_CTRL_SEL_ANA_RESET | 4093c6e15bcSPyun YongHyeon GPHY_CTRL_PHY_PLL_ON); 4103c6e15bcSPyun YongHyeon DELAY(1000); 4113c6e15bcSPyun YongHyeon CSR_WRITE_2(sc, ALE_GPHY_CTRL, 4123c6e15bcSPyun YongHyeon GPHY_CTRL_EXT_RESET | GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE | 4133c6e15bcSPyun YongHyeon GPHY_CTRL_SEL_ANA_RESET | GPHY_CTRL_PHY_PLL_ON); 4143c6e15bcSPyun YongHyeon DELAY(1000); 41519042fb8SPyun YongHyeon 41619042fb8SPyun YongHyeon #define ATPHY_DBG_ADDR 0x1D 41719042fb8SPyun YongHyeon #define ATPHY_DBG_DATA 0x1E 41819042fb8SPyun YongHyeon 41919042fb8SPyun YongHyeon /* Enable hibernation mode. */ 42019042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 42119042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x0B); 42219042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 42319042fb8SPyun YongHyeon ATPHY_DBG_DATA, 0xBC00); 42419042fb8SPyun YongHyeon /* Set Class A/B for all modes. */ 42519042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 42619042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x00); 42719042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 42819042fb8SPyun YongHyeon ATPHY_DBG_DATA, 0x02EF); 42919042fb8SPyun YongHyeon /* Enable 10BT power saving. */ 43019042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 43119042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x12); 43219042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 43319042fb8SPyun YongHyeon ATPHY_DBG_DATA, 0x4C04); 43419042fb8SPyun YongHyeon /* Adjust 1000T power. */ 43519042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 43619042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x04); 43719042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 43819042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x8BBB); 43919042fb8SPyun YongHyeon /* 10BT center tap voltage. */ 44019042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 44119042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x05); 44219042fb8SPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 44319042fb8SPyun YongHyeon ATPHY_DBG_ADDR, 0x2C46); 44419042fb8SPyun YongHyeon 44519042fb8SPyun YongHyeon #undef ATPHY_DBG_ADDR 44619042fb8SPyun YongHyeon #undef ATPHY_DBG_DATA 44719042fb8SPyun YongHyeon DELAY(1000); 4483c6e15bcSPyun YongHyeon } 4493c6e15bcSPyun YongHyeon 4503c6e15bcSPyun YongHyeon static int 4513c6e15bcSPyun YongHyeon ale_attach(device_t dev) 4523c6e15bcSPyun YongHyeon { 4533c6e15bcSPyun YongHyeon struct ale_softc *sc; 4543c6e15bcSPyun YongHyeon struct ifnet *ifp; 4553c6e15bcSPyun YongHyeon uint16_t burst; 4563c6e15bcSPyun YongHyeon int error, i, msic, msixc, pmc; 4573c6e15bcSPyun YongHyeon uint32_t rxf_len, txf_len; 4583c6e15bcSPyun YongHyeon 4593c6e15bcSPyun YongHyeon error = 0; 4603c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 4613c6e15bcSPyun YongHyeon sc->ale_dev = dev; 4623c6e15bcSPyun YongHyeon 4633c6e15bcSPyun YongHyeon mtx_init(&sc->ale_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 4643c6e15bcSPyun YongHyeon MTX_DEF); 4653c6e15bcSPyun YongHyeon callout_init_mtx(&sc->ale_tick_ch, &sc->ale_mtx, 0); 4663c6e15bcSPyun YongHyeon TASK_INIT(&sc->ale_int_task, 0, ale_int_task, sc); 4673c6e15bcSPyun YongHyeon 4683c6e15bcSPyun YongHyeon /* Map the device. */ 4693c6e15bcSPyun YongHyeon pci_enable_busmaster(dev); 4703c6e15bcSPyun YongHyeon sc->ale_res_spec = ale_res_spec_mem; 4713c6e15bcSPyun YongHyeon sc->ale_irq_spec = ale_irq_spec_legacy; 4723c6e15bcSPyun YongHyeon error = bus_alloc_resources(dev, sc->ale_res_spec, sc->ale_res); 4733c6e15bcSPyun YongHyeon if (error != 0) { 4743c6e15bcSPyun YongHyeon device_printf(dev, "cannot allocate memory resources.\n"); 4753c6e15bcSPyun YongHyeon goto fail; 4763c6e15bcSPyun YongHyeon } 4773c6e15bcSPyun YongHyeon 4783c6e15bcSPyun YongHyeon /* Set PHY address. */ 4793c6e15bcSPyun YongHyeon sc->ale_phyaddr = ALE_PHY_ADDR; 4803c6e15bcSPyun YongHyeon 4813c6e15bcSPyun YongHyeon /* Reset PHY. */ 4823c6e15bcSPyun YongHyeon ale_phy_reset(sc); 4833c6e15bcSPyun YongHyeon 4843c6e15bcSPyun YongHyeon /* Reset the ethernet controller. */ 4853c6e15bcSPyun YongHyeon ale_reset(sc); 4863c6e15bcSPyun YongHyeon 4873c6e15bcSPyun YongHyeon /* Get PCI and chip id/revision. */ 4883c6e15bcSPyun YongHyeon sc->ale_rev = pci_get_revid(dev); 4893c6e15bcSPyun YongHyeon if (sc->ale_rev >= 0xF0) { 4903c6e15bcSPyun YongHyeon /* L2E Rev. B. AR8114 */ 4913c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_FASTETHER; 4923c6e15bcSPyun YongHyeon } else { 4933c6e15bcSPyun YongHyeon if ((CSR_READ_4(sc, ALE_PHY_STATUS) & PHY_STATUS_100M) != 0) { 4943c6e15bcSPyun YongHyeon /* L1E AR8121 */ 4953c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_JUMBO; 4963c6e15bcSPyun YongHyeon } else { 4973c6e15bcSPyun YongHyeon /* L2E Rev. A. AR8113 */ 4983c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_FASTETHER; 4993c6e15bcSPyun YongHyeon } 5003c6e15bcSPyun YongHyeon } 5013c6e15bcSPyun YongHyeon /* 5023c6e15bcSPyun YongHyeon * All known controllers seems to require 4 bytes alignment 5033c6e15bcSPyun YongHyeon * of Tx buffers to make Tx checksum offload with custom 5043c6e15bcSPyun YongHyeon * checksum generation method work. 5053c6e15bcSPyun YongHyeon */ 5063c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_TXCSUM_BUG; 5073c6e15bcSPyun YongHyeon /* 5083c6e15bcSPyun YongHyeon * All known controllers seems to have issues on Rx checksum 5093c6e15bcSPyun YongHyeon * offload for fragmented IP datagrams. 5103c6e15bcSPyun YongHyeon */ 5113c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_RXCSUM_BUG; 5123c6e15bcSPyun YongHyeon /* 5133c6e15bcSPyun YongHyeon * Don't use Tx CMB. It is known to cause RRS update failure 5143c6e15bcSPyun YongHyeon * under certain circumstances. Typical phenomenon of the 5153c6e15bcSPyun YongHyeon * issue would be unexpected sequence number encountered in 5163c6e15bcSPyun YongHyeon * Rx handler. 5173c6e15bcSPyun YongHyeon */ 5183c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_TXCMB_BUG; 5193c6e15bcSPyun YongHyeon sc->ale_chip_rev = CSR_READ_4(sc, ALE_MASTER_CFG) >> 5203c6e15bcSPyun YongHyeon MASTER_CHIP_REV_SHIFT; 5213c6e15bcSPyun YongHyeon if (bootverbose) { 5223c6e15bcSPyun YongHyeon device_printf(dev, "PCI device revision : 0x%04x\n", 5233c6e15bcSPyun YongHyeon sc->ale_rev); 5243c6e15bcSPyun YongHyeon device_printf(dev, "Chip id/revision : 0x%04x\n", 5253c6e15bcSPyun YongHyeon sc->ale_chip_rev); 5263c6e15bcSPyun YongHyeon } 5273c6e15bcSPyun YongHyeon txf_len = CSR_READ_4(sc, ALE_SRAM_TX_FIFO_LEN); 5283c6e15bcSPyun YongHyeon rxf_len = CSR_READ_4(sc, ALE_SRAM_RX_FIFO_LEN); 5293c6e15bcSPyun YongHyeon /* 5303c6e15bcSPyun YongHyeon * Uninitialized hardware returns an invalid chip id/revision 5313c6e15bcSPyun YongHyeon * as well as 0xFFFFFFFF for Tx/Rx fifo length. 5323c6e15bcSPyun YongHyeon */ 5333c6e15bcSPyun YongHyeon if (sc->ale_chip_rev == 0xFFFF || txf_len == 0xFFFFFFFF || 5343c6e15bcSPyun YongHyeon rxf_len == 0xFFFFFFF) { 5353c6e15bcSPyun YongHyeon device_printf(dev,"chip revision : 0x%04x, %u Tx FIFO " 5363c6e15bcSPyun YongHyeon "%u Rx FIFO -- not initialized?\n", sc->ale_chip_rev, 5373c6e15bcSPyun YongHyeon txf_len, rxf_len); 5383c6e15bcSPyun YongHyeon error = ENXIO; 5393c6e15bcSPyun YongHyeon goto fail; 5403c6e15bcSPyun YongHyeon } 5413c6e15bcSPyun YongHyeon device_printf(dev, "%u Tx FIFO, %u Rx FIFO\n", txf_len, rxf_len); 5423c6e15bcSPyun YongHyeon 5433c6e15bcSPyun YongHyeon /* Allocate IRQ resources. */ 5443c6e15bcSPyun YongHyeon msixc = pci_msix_count(dev); 5453c6e15bcSPyun YongHyeon msic = pci_msi_count(dev); 5463c6e15bcSPyun YongHyeon if (bootverbose) { 5473c6e15bcSPyun YongHyeon device_printf(dev, "MSIX count : %d\n", msixc); 5483c6e15bcSPyun YongHyeon device_printf(dev, "MSI count : %d\n", msic); 5493c6e15bcSPyun YongHyeon } 5503c6e15bcSPyun YongHyeon 5513c6e15bcSPyun YongHyeon /* Prefer MSIX over MSI. */ 5523c6e15bcSPyun YongHyeon if (msix_disable == 0 || msi_disable == 0) { 5533c6e15bcSPyun YongHyeon if (msix_disable == 0 && msixc == ALE_MSIX_MESSAGES && 5543c6e15bcSPyun YongHyeon pci_alloc_msix(dev, &msixc) == 0) { 5559dd3fa37SPyun YongHyeon if (msixc == ALE_MSIX_MESSAGES) { 5563c6e15bcSPyun YongHyeon device_printf(dev, "Using %d MSIX messages.\n", 5573c6e15bcSPyun YongHyeon msixc); 5583c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_MSIX; 5593c6e15bcSPyun YongHyeon sc->ale_irq_spec = ale_irq_spec_msix; 5603c6e15bcSPyun YongHyeon } else 5613c6e15bcSPyun YongHyeon pci_release_msi(dev); 5623c6e15bcSPyun YongHyeon } 5633c6e15bcSPyun YongHyeon if (msi_disable == 0 && (sc->ale_flags & ALE_FLAG_MSIX) == 0 && 5643c6e15bcSPyun YongHyeon msic == ALE_MSI_MESSAGES && 5653c6e15bcSPyun YongHyeon pci_alloc_msi(dev, &msic) == 0) { 5663c6e15bcSPyun YongHyeon if (msic == ALE_MSI_MESSAGES) { 5673c6e15bcSPyun YongHyeon device_printf(dev, "Using %d MSI messages.\n", 5683c6e15bcSPyun YongHyeon msic); 5693c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_MSI; 5703c6e15bcSPyun YongHyeon sc->ale_irq_spec = ale_irq_spec_msi; 5713c6e15bcSPyun YongHyeon } else 5723c6e15bcSPyun YongHyeon pci_release_msi(dev); 5733c6e15bcSPyun YongHyeon } 5743c6e15bcSPyun YongHyeon } 5753c6e15bcSPyun YongHyeon 5763c6e15bcSPyun YongHyeon error = bus_alloc_resources(dev, sc->ale_irq_spec, sc->ale_irq); 5773c6e15bcSPyun YongHyeon if (error != 0) { 5783c6e15bcSPyun YongHyeon device_printf(dev, "cannot allocate IRQ resources.\n"); 5793c6e15bcSPyun YongHyeon goto fail; 5803c6e15bcSPyun YongHyeon } 5813c6e15bcSPyun YongHyeon 5823c6e15bcSPyun YongHyeon /* Get DMA parameters from PCIe device control register. */ 5833b0a4aefSJohn Baldwin if (pci_find_cap(dev, PCIY_EXPRESS, &i) == 0) { 5843c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_PCIE; 5853c6e15bcSPyun YongHyeon burst = pci_read_config(dev, i + 0x08, 2); 5863c6e15bcSPyun YongHyeon /* Max read request size. */ 5873c6e15bcSPyun YongHyeon sc->ale_dma_rd_burst = ((burst >> 12) & 0x07) << 5883c6e15bcSPyun YongHyeon DMA_CFG_RD_BURST_SHIFT; 5893c6e15bcSPyun YongHyeon /* Max payload size. */ 5903c6e15bcSPyun YongHyeon sc->ale_dma_wr_burst = ((burst >> 5) & 0x07) << 5913c6e15bcSPyun YongHyeon DMA_CFG_WR_BURST_SHIFT; 5923c6e15bcSPyun YongHyeon if (bootverbose) { 5933c6e15bcSPyun YongHyeon device_printf(dev, "Read request size : %d bytes.\n", 5943c6e15bcSPyun YongHyeon 128 << ((burst >> 12) & 0x07)); 5953c6e15bcSPyun YongHyeon device_printf(dev, "TLP payload size : %d bytes.\n", 5963c6e15bcSPyun YongHyeon 128 << ((burst >> 5) & 0x07)); 5973c6e15bcSPyun YongHyeon } 5983c6e15bcSPyun YongHyeon } else { 5993c6e15bcSPyun YongHyeon sc->ale_dma_rd_burst = DMA_CFG_RD_BURST_128; 6003c6e15bcSPyun YongHyeon sc->ale_dma_wr_burst = DMA_CFG_WR_BURST_128; 6013c6e15bcSPyun YongHyeon } 6023c6e15bcSPyun YongHyeon 6033c6e15bcSPyun YongHyeon /* Create device sysctl node. */ 6043c6e15bcSPyun YongHyeon ale_sysctl_node(sc); 6053c6e15bcSPyun YongHyeon 6069dda5c8fSPyun YongHyeon if ((error = ale_dma_alloc(sc)) != 0) 6073c6e15bcSPyun YongHyeon goto fail; 6083c6e15bcSPyun YongHyeon 6093c6e15bcSPyun YongHyeon /* Load station address. */ 6103c6e15bcSPyun YongHyeon ale_get_macaddr(sc); 6113c6e15bcSPyun YongHyeon 6123c6e15bcSPyun YongHyeon ifp = sc->ale_ifp = if_alloc(IFT_ETHER); 6133c6e15bcSPyun YongHyeon if (ifp == NULL) { 6143c6e15bcSPyun YongHyeon device_printf(dev, "cannot allocate ifnet structure.\n"); 6153c6e15bcSPyun YongHyeon error = ENXIO; 6163c6e15bcSPyun YongHyeon goto fail; 6173c6e15bcSPyun YongHyeon } 6183c6e15bcSPyun YongHyeon 6193c6e15bcSPyun YongHyeon ifp->if_softc = sc; 6203c6e15bcSPyun YongHyeon if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 6213c6e15bcSPyun YongHyeon ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 6223c6e15bcSPyun YongHyeon ifp->if_ioctl = ale_ioctl; 6233c6e15bcSPyun YongHyeon ifp->if_start = ale_start; 6243c6e15bcSPyun YongHyeon ifp->if_init = ale_init; 6253c6e15bcSPyun YongHyeon ifp->if_snd.ifq_drv_maxlen = ALE_TX_RING_CNT - 1; 6263c6e15bcSPyun YongHyeon IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); 6273c6e15bcSPyun YongHyeon IFQ_SET_READY(&ifp->if_snd); 6283c6e15bcSPyun YongHyeon ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_TXCSUM | IFCAP_TSO4; 6293c6e15bcSPyun YongHyeon ifp->if_hwassist = ALE_CSUM_FEATURES | CSUM_TSO; 6303b0a4aefSJohn Baldwin if (pci_find_cap(dev, PCIY_PMG, &pmc) == 0) { 6313c6e15bcSPyun YongHyeon sc->ale_flags |= ALE_FLAG_PMCAP; 6323c6e15bcSPyun YongHyeon ifp->if_capabilities |= IFCAP_WOL_MAGIC | IFCAP_WOL_MCAST; 6333c6e15bcSPyun YongHyeon } 6343c6e15bcSPyun YongHyeon ifp->if_capenable = ifp->if_capabilities; 6353c6e15bcSPyun YongHyeon 6363c6e15bcSPyun YongHyeon /* Set up MII bus. */ 6378e5d93dbSMarius Strobl error = mii_attach(dev, &sc->ale_miibus, ifp, ale_mediachange, 6388e5d93dbSMarius Strobl ale_mediastatus, BMSR_DEFCAPMASK, sc->ale_phyaddr, MII_OFFSET_ANY, 63926a93551SMarius Strobl MIIF_DOPAUSE); 6408e5d93dbSMarius Strobl if (error != 0) { 6418e5d93dbSMarius Strobl device_printf(dev, "attaching PHYs failed\n"); 6423c6e15bcSPyun YongHyeon goto fail; 6433c6e15bcSPyun YongHyeon } 6443c6e15bcSPyun YongHyeon 6453c6e15bcSPyun YongHyeon ether_ifattach(ifp, sc->ale_eaddr); 6463c6e15bcSPyun YongHyeon 6473c6e15bcSPyun YongHyeon /* VLAN capability setup. */ 6485b8b73f6SPyun YongHyeon ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING | 6495b8b73f6SPyun YongHyeon IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO; 6503c6e15bcSPyun YongHyeon ifp->if_capenable = ifp->if_capabilities; 651ca406a44SPyun YongHyeon /* 652ca406a44SPyun YongHyeon * Even though controllers supported by ale(3) have Rx checksum 653ca406a44SPyun YongHyeon * offload bug the workaround for fragmented frames seemed to 654ca406a44SPyun YongHyeon * work so far. However it seems Rx checksum offload does not 655ca406a44SPyun YongHyeon * work under certain conditions. So disable Rx checksum offload 656ca406a44SPyun YongHyeon * until I find more clue about it but allow users to override it. 657ca406a44SPyun YongHyeon */ 658ca406a44SPyun YongHyeon ifp->if_capenable &= ~IFCAP_RXCSUM; 6593c6e15bcSPyun YongHyeon 6603c6e15bcSPyun YongHyeon /* Tell the upper layer(s) we support long frames. */ 6611bffa951SGleb Smirnoff ifp->if_hdrlen = sizeof(struct ether_vlan_header); 6623c6e15bcSPyun YongHyeon 6633c6e15bcSPyun YongHyeon /* Create local taskq. */ 6643c6e15bcSPyun YongHyeon sc->ale_tq = taskqueue_create_fast("ale_taskq", M_WAITOK, 6653c6e15bcSPyun YongHyeon taskqueue_thread_enqueue, &sc->ale_tq); 6663c6e15bcSPyun YongHyeon if (sc->ale_tq == NULL) { 6673c6e15bcSPyun YongHyeon device_printf(dev, "could not create taskqueue.\n"); 6683c6e15bcSPyun YongHyeon ether_ifdetach(ifp); 6693c6e15bcSPyun YongHyeon error = ENXIO; 6703c6e15bcSPyun YongHyeon goto fail; 6713c6e15bcSPyun YongHyeon } 6723c6e15bcSPyun YongHyeon taskqueue_start_threads(&sc->ale_tq, 1, PI_NET, "%s taskq", 6733c6e15bcSPyun YongHyeon device_get_nameunit(sc->ale_dev)); 6743c6e15bcSPyun YongHyeon 6753c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_MSIX) != 0) 6763c6e15bcSPyun YongHyeon msic = ALE_MSIX_MESSAGES; 6773c6e15bcSPyun YongHyeon else if ((sc->ale_flags & ALE_FLAG_MSI) != 0) 6783c6e15bcSPyun YongHyeon msic = ALE_MSI_MESSAGES; 6793c6e15bcSPyun YongHyeon else 6803c6e15bcSPyun YongHyeon msic = 1; 6813c6e15bcSPyun YongHyeon for (i = 0; i < msic; i++) { 6823c6e15bcSPyun YongHyeon error = bus_setup_intr(dev, sc->ale_irq[i], 6833c6e15bcSPyun YongHyeon INTR_TYPE_NET | INTR_MPSAFE, ale_intr, NULL, sc, 6843c6e15bcSPyun YongHyeon &sc->ale_intrhand[i]); 6853c6e15bcSPyun YongHyeon if (error != 0) 6863c6e15bcSPyun YongHyeon break; 6873c6e15bcSPyun YongHyeon } 6883c6e15bcSPyun YongHyeon if (error != 0) { 6893c6e15bcSPyun YongHyeon device_printf(dev, "could not set up interrupt handler.\n"); 6903c6e15bcSPyun YongHyeon taskqueue_free(sc->ale_tq); 6913c6e15bcSPyun YongHyeon sc->ale_tq = NULL; 6923c6e15bcSPyun YongHyeon ether_ifdetach(ifp); 6933c6e15bcSPyun YongHyeon goto fail; 6943c6e15bcSPyun YongHyeon } 6953c6e15bcSPyun YongHyeon 6963c6e15bcSPyun YongHyeon fail: 6973c6e15bcSPyun YongHyeon if (error != 0) 6983c6e15bcSPyun YongHyeon ale_detach(dev); 6993c6e15bcSPyun YongHyeon 7003c6e15bcSPyun YongHyeon return (error); 7013c6e15bcSPyun YongHyeon } 7023c6e15bcSPyun YongHyeon 7033c6e15bcSPyun YongHyeon static int 7043c6e15bcSPyun YongHyeon ale_detach(device_t dev) 7053c6e15bcSPyun YongHyeon { 7063c6e15bcSPyun YongHyeon struct ale_softc *sc; 7073c6e15bcSPyun YongHyeon struct ifnet *ifp; 7083c6e15bcSPyun YongHyeon int i, msic; 7093c6e15bcSPyun YongHyeon 7103c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 7113c6e15bcSPyun YongHyeon 7123c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 7133c6e15bcSPyun YongHyeon if (device_is_attached(dev)) { 714287e0d97SJohn Baldwin ether_ifdetach(ifp); 7153c6e15bcSPyun YongHyeon ALE_LOCK(sc); 7163c6e15bcSPyun YongHyeon ale_stop(sc); 7173c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 7183c6e15bcSPyun YongHyeon callout_drain(&sc->ale_tick_ch); 7193c6e15bcSPyun YongHyeon taskqueue_drain(sc->ale_tq, &sc->ale_int_task); 7203c6e15bcSPyun YongHyeon } 7213c6e15bcSPyun YongHyeon 7223c6e15bcSPyun YongHyeon if (sc->ale_tq != NULL) { 7233c6e15bcSPyun YongHyeon taskqueue_drain(sc->ale_tq, &sc->ale_int_task); 7243c6e15bcSPyun YongHyeon taskqueue_free(sc->ale_tq); 7253c6e15bcSPyun YongHyeon sc->ale_tq = NULL; 7263c6e15bcSPyun YongHyeon } 7273c6e15bcSPyun YongHyeon 7283c6e15bcSPyun YongHyeon if (sc->ale_miibus != NULL) { 7293c6e15bcSPyun YongHyeon device_delete_child(dev, sc->ale_miibus); 7303c6e15bcSPyun YongHyeon sc->ale_miibus = NULL; 7313c6e15bcSPyun YongHyeon } 7323c6e15bcSPyun YongHyeon bus_generic_detach(dev); 7333c6e15bcSPyun YongHyeon ale_dma_free(sc); 7343c6e15bcSPyun YongHyeon 7353c6e15bcSPyun YongHyeon if (ifp != NULL) { 7363c6e15bcSPyun YongHyeon if_free(ifp); 7373c6e15bcSPyun YongHyeon sc->ale_ifp = NULL; 7383c6e15bcSPyun YongHyeon } 7393c6e15bcSPyun YongHyeon 7403c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_MSIX) != 0) 7413c6e15bcSPyun YongHyeon msic = ALE_MSIX_MESSAGES; 7423c6e15bcSPyun YongHyeon else if ((sc->ale_flags & ALE_FLAG_MSI) != 0) 7433c6e15bcSPyun YongHyeon msic = ALE_MSI_MESSAGES; 7443c6e15bcSPyun YongHyeon else 7453c6e15bcSPyun YongHyeon msic = 1; 7463c6e15bcSPyun YongHyeon for (i = 0; i < msic; i++) { 7473c6e15bcSPyun YongHyeon if (sc->ale_intrhand[i] != NULL) { 7483c6e15bcSPyun YongHyeon bus_teardown_intr(dev, sc->ale_irq[i], 7493c6e15bcSPyun YongHyeon sc->ale_intrhand[i]); 7503c6e15bcSPyun YongHyeon sc->ale_intrhand[i] = NULL; 7513c6e15bcSPyun YongHyeon } 7523c6e15bcSPyun YongHyeon } 7533c6e15bcSPyun YongHyeon 7543c6e15bcSPyun YongHyeon bus_release_resources(dev, sc->ale_irq_spec, sc->ale_irq); 7553c6e15bcSPyun YongHyeon if ((sc->ale_flags & (ALE_FLAG_MSI | ALE_FLAG_MSIX)) != 0) 7563c6e15bcSPyun YongHyeon pci_release_msi(dev); 7573c6e15bcSPyun YongHyeon bus_release_resources(dev, sc->ale_res_spec, sc->ale_res); 7583c6e15bcSPyun YongHyeon mtx_destroy(&sc->ale_mtx); 7593c6e15bcSPyun YongHyeon 7603c6e15bcSPyun YongHyeon return (0); 7613c6e15bcSPyun YongHyeon } 7623c6e15bcSPyun YongHyeon 7633c6e15bcSPyun YongHyeon #define ALE_SYSCTL_STAT_ADD32(c, h, n, p, d) \ 7643c6e15bcSPyun YongHyeon SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d) 7653c6e15bcSPyun YongHyeon 7666dc7dc9aSMatthew D Fleming #if __FreeBSD_version >= 900030 7676dc7dc9aSMatthew D Fleming #define ALE_SYSCTL_STAT_ADD64(c, h, n, p, d) \ 7686dc7dc9aSMatthew D Fleming SYSCTL_ADD_UQUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d) 7696dc7dc9aSMatthew D Fleming #elif __FreeBSD_version > 800000 7703c6e15bcSPyun YongHyeon #define ALE_SYSCTL_STAT_ADD64(c, h, n, p, d) \ 7713c6e15bcSPyun YongHyeon SYSCTL_ADD_QUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d) 7723c6e15bcSPyun YongHyeon #else 7733c6e15bcSPyun YongHyeon #define ALE_SYSCTL_STAT_ADD64(c, h, n, p, d) \ 7743c6e15bcSPyun YongHyeon SYSCTL_ADD_ULONG(c, h, OID_AUTO, n, CTLFLAG_RD, p, d) 7753c6e15bcSPyun YongHyeon #endif 7763c6e15bcSPyun YongHyeon 7773c6e15bcSPyun YongHyeon static void 7783c6e15bcSPyun YongHyeon ale_sysctl_node(struct ale_softc *sc) 7793c6e15bcSPyun YongHyeon { 7803c6e15bcSPyun YongHyeon struct sysctl_ctx_list *ctx; 7813c6e15bcSPyun YongHyeon struct sysctl_oid_list *child, *parent; 7823c6e15bcSPyun YongHyeon struct sysctl_oid *tree; 7833c6e15bcSPyun YongHyeon struct ale_hw_stats *stats; 7843c6e15bcSPyun YongHyeon int error; 7853c6e15bcSPyun YongHyeon 7863c6e15bcSPyun YongHyeon stats = &sc->ale_stats; 7873c6e15bcSPyun YongHyeon ctx = device_get_sysctl_ctx(sc->ale_dev); 7883c6e15bcSPyun YongHyeon child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ale_dev)); 7893c6e15bcSPyun YongHyeon 7903c6e15bcSPyun YongHyeon SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_rx_mod", 7913c6e15bcSPyun YongHyeon CTLTYPE_INT | CTLFLAG_RW, &sc->ale_int_rx_mod, 0, 7923c6e15bcSPyun YongHyeon sysctl_hw_ale_int_mod, "I", "ale Rx interrupt moderation"); 7933c6e15bcSPyun YongHyeon SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_tx_mod", 7943c6e15bcSPyun YongHyeon CTLTYPE_INT | CTLFLAG_RW, &sc->ale_int_tx_mod, 0, 7953c6e15bcSPyun YongHyeon sysctl_hw_ale_int_mod, "I", "ale Tx interrupt moderation"); 7963c6e15bcSPyun YongHyeon /* Pull in device tunables. */ 7973c6e15bcSPyun YongHyeon sc->ale_int_rx_mod = ALE_IM_RX_TIMER_DEFAULT; 7983c6e15bcSPyun YongHyeon error = resource_int_value(device_get_name(sc->ale_dev), 7993c6e15bcSPyun YongHyeon device_get_unit(sc->ale_dev), "int_rx_mod", &sc->ale_int_rx_mod); 8003c6e15bcSPyun YongHyeon if (error == 0) { 8013c6e15bcSPyun YongHyeon if (sc->ale_int_rx_mod < ALE_IM_TIMER_MIN || 8023c6e15bcSPyun YongHyeon sc->ale_int_rx_mod > ALE_IM_TIMER_MAX) { 8033c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "int_rx_mod value out of " 8043c6e15bcSPyun YongHyeon "range; using default: %d\n", 8053c6e15bcSPyun YongHyeon ALE_IM_RX_TIMER_DEFAULT); 8063c6e15bcSPyun YongHyeon sc->ale_int_rx_mod = ALE_IM_RX_TIMER_DEFAULT; 8073c6e15bcSPyun YongHyeon } 8083c6e15bcSPyun YongHyeon } 8093c6e15bcSPyun YongHyeon sc->ale_int_tx_mod = ALE_IM_TX_TIMER_DEFAULT; 8103c6e15bcSPyun YongHyeon error = resource_int_value(device_get_name(sc->ale_dev), 8113c6e15bcSPyun YongHyeon device_get_unit(sc->ale_dev), "int_tx_mod", &sc->ale_int_tx_mod); 8123c6e15bcSPyun YongHyeon if (error == 0) { 8133c6e15bcSPyun YongHyeon if (sc->ale_int_tx_mod < ALE_IM_TIMER_MIN || 8143c6e15bcSPyun YongHyeon sc->ale_int_tx_mod > ALE_IM_TIMER_MAX) { 8153c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "int_tx_mod value out of " 8163c6e15bcSPyun YongHyeon "range; using default: %d\n", 8173c6e15bcSPyun YongHyeon ALE_IM_TX_TIMER_DEFAULT); 8183c6e15bcSPyun YongHyeon sc->ale_int_tx_mod = ALE_IM_TX_TIMER_DEFAULT; 8193c6e15bcSPyun YongHyeon } 8203c6e15bcSPyun YongHyeon } 8213c6e15bcSPyun YongHyeon SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit", 8223c6e15bcSPyun YongHyeon CTLTYPE_INT | CTLFLAG_RW, &sc->ale_process_limit, 0, 8233c6e15bcSPyun YongHyeon sysctl_hw_ale_proc_limit, "I", 8243c6e15bcSPyun YongHyeon "max number of Rx events to process"); 8253c6e15bcSPyun YongHyeon /* Pull in device tunables. */ 8263c6e15bcSPyun YongHyeon sc->ale_process_limit = ALE_PROC_DEFAULT; 8273c6e15bcSPyun YongHyeon error = resource_int_value(device_get_name(sc->ale_dev), 8283c6e15bcSPyun YongHyeon device_get_unit(sc->ale_dev), "process_limit", 8293c6e15bcSPyun YongHyeon &sc->ale_process_limit); 8303c6e15bcSPyun YongHyeon if (error == 0) { 8313c6e15bcSPyun YongHyeon if (sc->ale_process_limit < ALE_PROC_MIN || 8323c6e15bcSPyun YongHyeon sc->ale_process_limit > ALE_PROC_MAX) { 8333c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 8343c6e15bcSPyun YongHyeon "process_limit value out of range; " 8353c6e15bcSPyun YongHyeon "using default: %d\n", ALE_PROC_DEFAULT); 8363c6e15bcSPyun YongHyeon sc->ale_process_limit = ALE_PROC_DEFAULT; 8373c6e15bcSPyun YongHyeon } 8383c6e15bcSPyun YongHyeon } 8393c6e15bcSPyun YongHyeon 8403c6e15bcSPyun YongHyeon /* Misc statistics. */ 8413c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "reset_brk_seq", 8423c6e15bcSPyun YongHyeon &stats->reset_brk_seq, 8433c6e15bcSPyun YongHyeon "Controller resets due to broken Rx sequnce number"); 8443c6e15bcSPyun YongHyeon 8453c6e15bcSPyun YongHyeon tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD, 8463c6e15bcSPyun YongHyeon NULL, "ATE statistics"); 8473c6e15bcSPyun YongHyeon parent = SYSCTL_CHILDREN(tree); 8483c6e15bcSPyun YongHyeon 8493c6e15bcSPyun YongHyeon /* Rx statistics. */ 8503c6e15bcSPyun YongHyeon tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD, 8513c6e15bcSPyun YongHyeon NULL, "Rx MAC statistics"); 8523c6e15bcSPyun YongHyeon child = SYSCTL_CHILDREN(tree); 8533c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_frames", 8543c6e15bcSPyun YongHyeon &stats->rx_frames, "Good frames"); 8553c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_bcast_frames", 8563c6e15bcSPyun YongHyeon &stats->rx_bcast_frames, "Good broadcast frames"); 8573c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_mcast_frames", 8583c6e15bcSPyun YongHyeon &stats->rx_mcast_frames, "Good multicast frames"); 8593c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "pause_frames", 8603c6e15bcSPyun YongHyeon &stats->rx_pause_frames, "Pause control frames"); 8613c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "control_frames", 8623c6e15bcSPyun YongHyeon &stats->rx_control_frames, "Control frames"); 8633c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "crc_errs", 8643c6e15bcSPyun YongHyeon &stats->rx_crcerrs, "CRC errors"); 8653c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "len_errs", 8663c6e15bcSPyun YongHyeon &stats->rx_lenerrs, "Frames with length mismatched"); 8673c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_octets", 8683c6e15bcSPyun YongHyeon &stats->rx_bytes, "Good octets"); 8693c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_bcast_octets", 8703c6e15bcSPyun YongHyeon &stats->rx_bcast_bytes, "Good broadcast octets"); 8713c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_mcast_octets", 8723c6e15bcSPyun YongHyeon &stats->rx_mcast_bytes, "Good multicast octets"); 8733c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "runts", 8743c6e15bcSPyun YongHyeon &stats->rx_runts, "Too short frames"); 8753c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "fragments", 8763c6e15bcSPyun YongHyeon &stats->rx_fragments, "Fragmented frames"); 8773c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_64", 8783c6e15bcSPyun YongHyeon &stats->rx_pkts_64, "64 bytes frames"); 8793c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_65_127", 8803c6e15bcSPyun YongHyeon &stats->rx_pkts_65_127, "65 to 127 bytes frames"); 8813c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_128_255", 8823c6e15bcSPyun YongHyeon &stats->rx_pkts_128_255, "128 to 255 bytes frames"); 8833c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_256_511", 8843c6e15bcSPyun YongHyeon &stats->rx_pkts_256_511, "256 to 511 bytes frames"); 8853c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_512_1023", 8863c6e15bcSPyun YongHyeon &stats->rx_pkts_512_1023, "512 to 1023 bytes frames"); 8873c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_1024_1518", 8883c6e15bcSPyun YongHyeon &stats->rx_pkts_1024_1518, "1024 to 1518 bytes frames"); 8893c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_1519_max", 8903c6e15bcSPyun YongHyeon &stats->rx_pkts_1519_max, "1519 to max frames"); 8913c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "trunc_errs", 8923c6e15bcSPyun YongHyeon &stats->rx_pkts_truncated, "Truncated frames due to MTU size"); 8933c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "fifo_oflows", 8943c6e15bcSPyun YongHyeon &stats->rx_fifo_oflows, "FIFO overflows"); 8953c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "rrs_errs", 8963c6e15bcSPyun YongHyeon &stats->rx_rrs_errs, "Return status write-back errors"); 8973c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "align_errs", 8983c6e15bcSPyun YongHyeon &stats->rx_alignerrs, "Alignment errors"); 8993c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "filtered", 9003c6e15bcSPyun YongHyeon &stats->rx_pkts_filtered, 9013c6e15bcSPyun YongHyeon "Frames dropped due to address filtering"); 9023c6e15bcSPyun YongHyeon 9033c6e15bcSPyun YongHyeon /* Tx statistics. */ 9043c6e15bcSPyun YongHyeon tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD, 9053c6e15bcSPyun YongHyeon NULL, "Tx MAC statistics"); 9063c6e15bcSPyun YongHyeon child = SYSCTL_CHILDREN(tree); 9073c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_frames", 9083c6e15bcSPyun YongHyeon &stats->tx_frames, "Good frames"); 9093c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_bcast_frames", 9103c6e15bcSPyun YongHyeon &stats->tx_bcast_frames, "Good broadcast frames"); 9113c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "good_mcast_frames", 9123c6e15bcSPyun YongHyeon &stats->tx_mcast_frames, "Good multicast frames"); 9133c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "pause_frames", 9143c6e15bcSPyun YongHyeon &stats->tx_pause_frames, "Pause control frames"); 9153c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "control_frames", 9163c6e15bcSPyun YongHyeon &stats->tx_control_frames, "Control frames"); 9173c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "excess_defers", 9183c6e15bcSPyun YongHyeon &stats->tx_excess_defer, "Frames with excessive derferrals"); 9193c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "defers", 9203c6e15bcSPyun YongHyeon &stats->tx_excess_defer, "Frames with derferrals"); 9213c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_octets", 9223c6e15bcSPyun YongHyeon &stats->tx_bytes, "Good octets"); 9233c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_bcast_octets", 9243c6e15bcSPyun YongHyeon &stats->tx_bcast_bytes, "Good broadcast octets"); 9253c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD64(ctx, child, "good_mcast_octets", 9263c6e15bcSPyun YongHyeon &stats->tx_mcast_bytes, "Good multicast octets"); 9273c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_64", 9283c6e15bcSPyun YongHyeon &stats->tx_pkts_64, "64 bytes frames"); 9293c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_65_127", 9303c6e15bcSPyun YongHyeon &stats->tx_pkts_65_127, "65 to 127 bytes frames"); 9313c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_128_255", 9323c6e15bcSPyun YongHyeon &stats->tx_pkts_128_255, "128 to 255 bytes frames"); 9333c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_256_511", 9343c6e15bcSPyun YongHyeon &stats->tx_pkts_256_511, "256 to 511 bytes frames"); 9353c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_512_1023", 9363c6e15bcSPyun YongHyeon &stats->tx_pkts_512_1023, "512 to 1023 bytes frames"); 9373c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_1024_1518", 9383c6e15bcSPyun YongHyeon &stats->tx_pkts_1024_1518, "1024 to 1518 bytes frames"); 9393c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "frames_1519_max", 9403c6e15bcSPyun YongHyeon &stats->tx_pkts_1519_max, "1519 to max frames"); 9413c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "single_colls", 9423c6e15bcSPyun YongHyeon &stats->tx_single_colls, "Single collisions"); 9433c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "multi_colls", 9443c6e15bcSPyun YongHyeon &stats->tx_multi_colls, "Multiple collisions"); 9453c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "late_colls", 9463c6e15bcSPyun YongHyeon &stats->tx_late_colls, "Late collisions"); 9473c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "excess_colls", 9483c6e15bcSPyun YongHyeon &stats->tx_excess_colls, "Excessive collisions"); 9493c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "underruns", 9503c6e15bcSPyun YongHyeon &stats->tx_underrun, "FIFO underruns"); 9513c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "desc_underruns", 9523c6e15bcSPyun YongHyeon &stats->tx_desc_underrun, "Descriptor write-back errors"); 9533c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "len_errs", 9543c6e15bcSPyun YongHyeon &stats->tx_lenerrs, "Frames with length mismatched"); 9553c6e15bcSPyun YongHyeon ALE_SYSCTL_STAT_ADD32(ctx, child, "trunc_errs", 9563c6e15bcSPyun YongHyeon &stats->tx_pkts_truncated, "Truncated frames due to MTU size"); 9573c6e15bcSPyun YongHyeon } 9583c6e15bcSPyun YongHyeon 9593c6e15bcSPyun YongHyeon #undef ALE_SYSCTL_STAT_ADD32 9603c6e15bcSPyun YongHyeon #undef ALE_SYSCTL_STAT_ADD64 9613c6e15bcSPyun YongHyeon 9623c6e15bcSPyun YongHyeon struct ale_dmamap_arg { 9633c6e15bcSPyun YongHyeon bus_addr_t ale_busaddr; 9643c6e15bcSPyun YongHyeon }; 9653c6e15bcSPyun YongHyeon 9663c6e15bcSPyun YongHyeon static void 9673c6e15bcSPyun YongHyeon ale_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 9683c6e15bcSPyun YongHyeon { 9693c6e15bcSPyun YongHyeon struct ale_dmamap_arg *ctx; 9703c6e15bcSPyun YongHyeon 9713c6e15bcSPyun YongHyeon if (error != 0) 9723c6e15bcSPyun YongHyeon return; 9733c6e15bcSPyun YongHyeon 9743c6e15bcSPyun YongHyeon KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 9753c6e15bcSPyun YongHyeon 9763c6e15bcSPyun YongHyeon ctx = (struct ale_dmamap_arg *)arg; 9773c6e15bcSPyun YongHyeon ctx->ale_busaddr = segs[0].ds_addr; 9783c6e15bcSPyun YongHyeon } 9793c6e15bcSPyun YongHyeon 9803c6e15bcSPyun YongHyeon /* 9813c6e15bcSPyun YongHyeon * Tx descriptors/RXF0/CMB DMA blocks share ALE_DESC_ADDR_HI register 9823c6e15bcSPyun YongHyeon * which specifies high address region of DMA blocks. Therefore these 9833c6e15bcSPyun YongHyeon * blocks should have the same high address of given 4GB address 9843c6e15bcSPyun YongHyeon * space(i.e. crossing 4GB boundary is not allowed). 9853c6e15bcSPyun YongHyeon */ 9863c6e15bcSPyun YongHyeon static int 9873c6e15bcSPyun YongHyeon ale_check_boundary(struct ale_softc *sc) 9883c6e15bcSPyun YongHyeon { 9893c6e15bcSPyun YongHyeon bus_addr_t rx_cmb_end[ALE_RX_PAGES], tx_cmb_end; 9903c6e15bcSPyun YongHyeon bus_addr_t rx_page_end[ALE_RX_PAGES], tx_ring_end; 9913c6e15bcSPyun YongHyeon 9923c6e15bcSPyun YongHyeon rx_page_end[0] = sc->ale_cdata.ale_rx_page[0].page_paddr + 9933c6e15bcSPyun YongHyeon sc->ale_pagesize; 9943c6e15bcSPyun YongHyeon rx_page_end[1] = sc->ale_cdata.ale_rx_page[1].page_paddr + 9953c6e15bcSPyun YongHyeon sc->ale_pagesize; 9963c6e15bcSPyun YongHyeon tx_ring_end = sc->ale_cdata.ale_tx_ring_paddr + ALE_TX_RING_SZ; 9973c6e15bcSPyun YongHyeon tx_cmb_end = sc->ale_cdata.ale_tx_cmb_paddr + ALE_TX_CMB_SZ; 9983c6e15bcSPyun YongHyeon rx_cmb_end[0] = sc->ale_cdata.ale_rx_page[0].cmb_paddr + ALE_RX_CMB_SZ; 9993c6e15bcSPyun YongHyeon rx_cmb_end[1] = sc->ale_cdata.ale_rx_page[1].cmb_paddr + ALE_RX_CMB_SZ; 10003c6e15bcSPyun YongHyeon 10013c6e15bcSPyun YongHyeon if ((ALE_ADDR_HI(tx_ring_end) != 10023c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_tx_ring_paddr)) || 10033c6e15bcSPyun YongHyeon (ALE_ADDR_HI(rx_page_end[0]) != 10043c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_rx_page[0].page_paddr)) || 10053c6e15bcSPyun YongHyeon (ALE_ADDR_HI(rx_page_end[1]) != 10063c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_rx_page[1].page_paddr)) || 10073c6e15bcSPyun YongHyeon (ALE_ADDR_HI(tx_cmb_end) != 10083c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_tx_cmb_paddr)) || 10093c6e15bcSPyun YongHyeon (ALE_ADDR_HI(rx_cmb_end[0]) != 10103c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_rx_page[0].cmb_paddr)) || 10113c6e15bcSPyun YongHyeon (ALE_ADDR_HI(rx_cmb_end[1]) != 10123c6e15bcSPyun YongHyeon ALE_ADDR_HI(sc->ale_cdata.ale_rx_page[1].cmb_paddr))) 10133c6e15bcSPyun YongHyeon return (EFBIG); 10143c6e15bcSPyun YongHyeon 10153c6e15bcSPyun YongHyeon if ((ALE_ADDR_HI(tx_ring_end) != ALE_ADDR_HI(rx_page_end[0])) || 10163c6e15bcSPyun YongHyeon (ALE_ADDR_HI(tx_ring_end) != ALE_ADDR_HI(rx_page_end[1])) || 10173c6e15bcSPyun YongHyeon (ALE_ADDR_HI(tx_ring_end) != ALE_ADDR_HI(rx_cmb_end[0])) || 10183c6e15bcSPyun YongHyeon (ALE_ADDR_HI(tx_ring_end) != ALE_ADDR_HI(rx_cmb_end[1])) || 10193c6e15bcSPyun YongHyeon (ALE_ADDR_HI(tx_ring_end) != ALE_ADDR_HI(tx_cmb_end))) 10203c6e15bcSPyun YongHyeon return (EFBIG); 10213c6e15bcSPyun YongHyeon 10223c6e15bcSPyun YongHyeon return (0); 10233c6e15bcSPyun YongHyeon } 10243c6e15bcSPyun YongHyeon 10253c6e15bcSPyun YongHyeon static int 10263c6e15bcSPyun YongHyeon ale_dma_alloc(struct ale_softc *sc) 10273c6e15bcSPyun YongHyeon { 10283c6e15bcSPyun YongHyeon struct ale_txdesc *txd; 10293c6e15bcSPyun YongHyeon bus_addr_t lowaddr; 10303c6e15bcSPyun YongHyeon struct ale_dmamap_arg ctx; 10313c6e15bcSPyun YongHyeon int error, guard_size, i; 10323c6e15bcSPyun YongHyeon 10333c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_JUMBO) != 0) 10343c6e15bcSPyun YongHyeon guard_size = ALE_JUMBO_FRAMELEN; 10353c6e15bcSPyun YongHyeon else 10363c6e15bcSPyun YongHyeon guard_size = ALE_MAX_FRAMELEN; 10373c6e15bcSPyun YongHyeon sc->ale_pagesize = roundup(guard_size + ALE_RX_PAGE_SZ, 10383c6e15bcSPyun YongHyeon ALE_RX_PAGE_ALIGN); 10393c6e15bcSPyun YongHyeon lowaddr = BUS_SPACE_MAXADDR; 10403c6e15bcSPyun YongHyeon again: 10413c6e15bcSPyun YongHyeon /* Create parent DMA tag. */ 10423c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 10433c6e15bcSPyun YongHyeon bus_get_dma_tag(sc->ale_dev), /* parent */ 10443c6e15bcSPyun YongHyeon 1, 0, /* alignment, boundary */ 10453c6e15bcSPyun YongHyeon lowaddr, /* lowaddr */ 10463c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 10473c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 10483c6e15bcSPyun YongHyeon BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 10493c6e15bcSPyun YongHyeon 0, /* nsegments */ 10503c6e15bcSPyun YongHyeon BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 10513c6e15bcSPyun YongHyeon 0, /* flags */ 10523c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 10533c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_parent_tag); 10543c6e15bcSPyun YongHyeon if (error != 0) { 10553c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 10563c6e15bcSPyun YongHyeon "could not create parent DMA tag.\n"); 10573c6e15bcSPyun YongHyeon goto fail; 10583c6e15bcSPyun YongHyeon } 10593c6e15bcSPyun YongHyeon 10603c6e15bcSPyun YongHyeon /* Create DMA tag for Tx descriptor ring. */ 10613c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 10623c6e15bcSPyun YongHyeon sc->ale_cdata.ale_parent_tag, /* parent */ 10633c6e15bcSPyun YongHyeon ALE_TX_RING_ALIGN, 0, /* alignment, boundary */ 10643c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 10653c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 10663c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 10673c6e15bcSPyun YongHyeon ALE_TX_RING_SZ, /* maxsize */ 10683c6e15bcSPyun YongHyeon 1, /* nsegments */ 10693c6e15bcSPyun YongHyeon ALE_TX_RING_SZ, /* maxsegsize */ 10703c6e15bcSPyun YongHyeon 0, /* flags */ 10713c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 10723c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_tx_ring_tag); 10733c6e15bcSPyun YongHyeon if (error != 0) { 10743c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 10753c6e15bcSPyun YongHyeon "could not create Tx ring DMA tag.\n"); 10763c6e15bcSPyun YongHyeon goto fail; 10773c6e15bcSPyun YongHyeon } 10783c6e15bcSPyun YongHyeon 10793c6e15bcSPyun YongHyeon /* Create DMA tag for Rx pages. */ 10803c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 10813c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 10823c6e15bcSPyun YongHyeon sc->ale_cdata.ale_parent_tag, /* parent */ 10833c6e15bcSPyun YongHyeon ALE_RX_PAGE_ALIGN, 0, /* alignment, boundary */ 10843c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 10853c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 10863c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 10873c6e15bcSPyun YongHyeon sc->ale_pagesize, /* maxsize */ 10883c6e15bcSPyun YongHyeon 1, /* nsegments */ 10893c6e15bcSPyun YongHyeon sc->ale_pagesize, /* maxsegsize */ 10903c6e15bcSPyun YongHyeon 0, /* flags */ 10913c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 10923c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_rx_page[i].page_tag); 10933c6e15bcSPyun YongHyeon if (error != 0) { 10943c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 10953c6e15bcSPyun YongHyeon "could not create Rx page %d DMA tag.\n", i); 10963c6e15bcSPyun YongHyeon goto fail; 10973c6e15bcSPyun YongHyeon } 10983c6e15bcSPyun YongHyeon } 10993c6e15bcSPyun YongHyeon 11003c6e15bcSPyun YongHyeon /* Create DMA tag for Tx coalescing message block. */ 11013c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 11023c6e15bcSPyun YongHyeon sc->ale_cdata.ale_parent_tag, /* parent */ 11033c6e15bcSPyun YongHyeon ALE_CMB_ALIGN, 0, /* alignment, boundary */ 11043c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 11053c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 11063c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 11073c6e15bcSPyun YongHyeon ALE_TX_CMB_SZ, /* maxsize */ 11083c6e15bcSPyun YongHyeon 1, /* nsegments */ 11093c6e15bcSPyun YongHyeon ALE_TX_CMB_SZ, /* maxsegsize */ 11103c6e15bcSPyun YongHyeon 0, /* flags */ 11113c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 11123c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_tx_cmb_tag); 11133c6e15bcSPyun YongHyeon if (error != 0) { 11143c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11153c6e15bcSPyun YongHyeon "could not create Tx CMB DMA tag.\n"); 11163c6e15bcSPyun YongHyeon goto fail; 11173c6e15bcSPyun YongHyeon } 11183c6e15bcSPyun YongHyeon 11193c6e15bcSPyun YongHyeon /* Create DMA tag for Rx coalescing message block. */ 11203c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 11213c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 11223c6e15bcSPyun YongHyeon sc->ale_cdata.ale_parent_tag, /* parent */ 11233c6e15bcSPyun YongHyeon ALE_CMB_ALIGN, 0, /* alignment, boundary */ 11243c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 11253c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 11263c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 11273c6e15bcSPyun YongHyeon ALE_RX_CMB_SZ, /* maxsize */ 11283c6e15bcSPyun YongHyeon 1, /* nsegments */ 11293c6e15bcSPyun YongHyeon ALE_RX_CMB_SZ, /* maxsegsize */ 11303c6e15bcSPyun YongHyeon 0, /* flags */ 11313c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 11323c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_rx_page[i].cmb_tag); 11333c6e15bcSPyun YongHyeon if (error != 0) { 11343c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11353c6e15bcSPyun YongHyeon "could not create Rx page %d CMB DMA tag.\n", i); 11363c6e15bcSPyun YongHyeon goto fail; 11373c6e15bcSPyun YongHyeon } 11383c6e15bcSPyun YongHyeon } 11393c6e15bcSPyun YongHyeon 11403c6e15bcSPyun YongHyeon /* Allocate DMA'able memory and load the DMA map for Tx ring. */ 11413c6e15bcSPyun YongHyeon error = bus_dmamem_alloc(sc->ale_cdata.ale_tx_ring_tag, 11423c6e15bcSPyun YongHyeon (void **)&sc->ale_cdata.ale_tx_ring, 11433c6e15bcSPyun YongHyeon BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 11443c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_tx_ring_map); 11453c6e15bcSPyun YongHyeon if (error != 0) { 11463c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11473c6e15bcSPyun YongHyeon "could not allocate DMA'able memory for Tx ring.\n"); 11483c6e15bcSPyun YongHyeon goto fail; 11493c6e15bcSPyun YongHyeon } 11503c6e15bcSPyun YongHyeon ctx.ale_busaddr = 0; 11513c6e15bcSPyun YongHyeon error = bus_dmamap_load(sc->ale_cdata.ale_tx_ring_tag, 11523c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map, sc->ale_cdata.ale_tx_ring, 11533c6e15bcSPyun YongHyeon ALE_TX_RING_SZ, ale_dmamap_cb, &ctx, 0); 11543c6e15bcSPyun YongHyeon if (error != 0 || ctx.ale_busaddr == 0) { 11553c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11563c6e15bcSPyun YongHyeon "could not load DMA'able memory for Tx ring.\n"); 11573c6e15bcSPyun YongHyeon goto fail; 11583c6e15bcSPyun YongHyeon } 11593c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_paddr = ctx.ale_busaddr; 11603c6e15bcSPyun YongHyeon 11613c6e15bcSPyun YongHyeon /* Rx pages. */ 11623c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 11633c6e15bcSPyun YongHyeon error = bus_dmamem_alloc(sc->ale_cdata.ale_rx_page[i].page_tag, 11643c6e15bcSPyun YongHyeon (void **)&sc->ale_cdata.ale_rx_page[i].page_addr, 11653c6e15bcSPyun YongHyeon BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 11663c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_rx_page[i].page_map); 11673c6e15bcSPyun YongHyeon if (error != 0) { 11683c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11693c6e15bcSPyun YongHyeon "could not allocate DMA'able memory for " 11703c6e15bcSPyun YongHyeon "Rx page %d.\n", i); 11713c6e15bcSPyun YongHyeon goto fail; 11723c6e15bcSPyun YongHyeon } 11733c6e15bcSPyun YongHyeon ctx.ale_busaddr = 0; 11743c6e15bcSPyun YongHyeon error = bus_dmamap_load(sc->ale_cdata.ale_rx_page[i].page_tag, 11753c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_map, 11763c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_addr, 11773c6e15bcSPyun YongHyeon sc->ale_pagesize, ale_dmamap_cb, &ctx, 0); 11783c6e15bcSPyun YongHyeon if (error != 0 || ctx.ale_busaddr == 0) { 11793c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11803c6e15bcSPyun YongHyeon "could not load DMA'able memory for " 11813c6e15bcSPyun YongHyeon "Rx page %d.\n", i); 11823c6e15bcSPyun YongHyeon goto fail; 11833c6e15bcSPyun YongHyeon } 11843c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_paddr = ctx.ale_busaddr; 11853c6e15bcSPyun YongHyeon } 11863c6e15bcSPyun YongHyeon 11873c6e15bcSPyun YongHyeon /* Tx CMB. */ 11883c6e15bcSPyun YongHyeon error = bus_dmamem_alloc(sc->ale_cdata.ale_tx_cmb_tag, 11893c6e15bcSPyun YongHyeon (void **)&sc->ale_cdata.ale_tx_cmb, 11903c6e15bcSPyun YongHyeon BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 11913c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_tx_cmb_map); 11923c6e15bcSPyun YongHyeon if (error != 0) { 11933c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 11943c6e15bcSPyun YongHyeon "could not allocate DMA'able memory for Tx CMB.\n"); 11953c6e15bcSPyun YongHyeon goto fail; 11963c6e15bcSPyun YongHyeon } 11973c6e15bcSPyun YongHyeon ctx.ale_busaddr = 0; 11983c6e15bcSPyun YongHyeon error = bus_dmamap_load(sc->ale_cdata.ale_tx_cmb_tag, 11993c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_map, sc->ale_cdata.ale_tx_cmb, 12003c6e15bcSPyun YongHyeon ALE_TX_CMB_SZ, ale_dmamap_cb, &ctx, 0); 12013c6e15bcSPyun YongHyeon if (error != 0 || ctx.ale_busaddr == 0) { 12023c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 12033c6e15bcSPyun YongHyeon "could not load DMA'able memory for Tx CMB.\n"); 12043c6e15bcSPyun YongHyeon goto fail; 12053c6e15bcSPyun YongHyeon } 12063c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_paddr = ctx.ale_busaddr; 12073c6e15bcSPyun YongHyeon 12083c6e15bcSPyun YongHyeon /* Rx CMB. */ 12093c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 12103c6e15bcSPyun YongHyeon error = bus_dmamem_alloc(sc->ale_cdata.ale_rx_page[i].cmb_tag, 12113c6e15bcSPyun YongHyeon (void **)&sc->ale_cdata.ale_rx_page[i].cmb_addr, 12123c6e15bcSPyun YongHyeon BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 12133c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_rx_page[i].cmb_map); 12143c6e15bcSPyun YongHyeon if (error != 0) { 12153c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "could not allocate " 12163c6e15bcSPyun YongHyeon "DMA'able memory for Rx page %d CMB.\n", i); 12173c6e15bcSPyun YongHyeon goto fail; 12183c6e15bcSPyun YongHyeon } 12193c6e15bcSPyun YongHyeon ctx.ale_busaddr = 0; 12203c6e15bcSPyun YongHyeon error = bus_dmamap_load(sc->ale_cdata.ale_rx_page[i].cmb_tag, 12213c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_map, 12223c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_addr, 12233c6e15bcSPyun YongHyeon ALE_RX_CMB_SZ, ale_dmamap_cb, &ctx, 0); 12243c6e15bcSPyun YongHyeon if (error != 0 || ctx.ale_busaddr == 0) { 12253c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "could not load DMA'able " 12263c6e15bcSPyun YongHyeon "memory for Rx page %d CMB.\n", i); 12273c6e15bcSPyun YongHyeon goto fail; 12283c6e15bcSPyun YongHyeon } 12293c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_paddr = ctx.ale_busaddr; 12303c6e15bcSPyun YongHyeon } 12313c6e15bcSPyun YongHyeon 12323c6e15bcSPyun YongHyeon /* 12333c6e15bcSPyun YongHyeon * Tx descriptors/RXF0/CMB DMA blocks share the same 12343c6e15bcSPyun YongHyeon * high address region of 64bit DMA address space. 12353c6e15bcSPyun YongHyeon */ 12363c6e15bcSPyun YongHyeon if (lowaddr != BUS_SPACE_MAXADDR_32BIT && 12373c6e15bcSPyun YongHyeon (error = ale_check_boundary(sc)) != 0) { 12383c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "4GB boundary crossed, " 12393c6e15bcSPyun YongHyeon "switching to 32bit DMA addressing mode.\n"); 12403c6e15bcSPyun YongHyeon ale_dma_free(sc); 12413c6e15bcSPyun YongHyeon /* 12423c6e15bcSPyun YongHyeon * Limit max allowable DMA address space to 32bit 12433c6e15bcSPyun YongHyeon * and try again. 12443c6e15bcSPyun YongHyeon */ 12453c6e15bcSPyun YongHyeon lowaddr = BUS_SPACE_MAXADDR_32BIT; 12463c6e15bcSPyun YongHyeon goto again; 12473c6e15bcSPyun YongHyeon } 12483c6e15bcSPyun YongHyeon 12493c6e15bcSPyun YongHyeon /* 12503c6e15bcSPyun YongHyeon * Create Tx buffer parent tag. 12513c6e15bcSPyun YongHyeon * AR81xx allows 64bit DMA addressing of Tx buffers so it 12523c6e15bcSPyun YongHyeon * needs separate parent DMA tag as parent DMA address space 12533c6e15bcSPyun YongHyeon * could be restricted to be within 32bit address space by 12543c6e15bcSPyun YongHyeon * 4GB boundary crossing. 12553c6e15bcSPyun YongHyeon */ 12563c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 12573c6e15bcSPyun YongHyeon bus_get_dma_tag(sc->ale_dev), /* parent */ 12583c6e15bcSPyun YongHyeon 1, 0, /* alignment, boundary */ 12593c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 12603c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 12613c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 12623c6e15bcSPyun YongHyeon BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 12633c6e15bcSPyun YongHyeon 0, /* nsegments */ 12643c6e15bcSPyun YongHyeon BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 12653c6e15bcSPyun YongHyeon 0, /* flags */ 12663c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 12673c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_buffer_tag); 12683c6e15bcSPyun YongHyeon if (error != 0) { 12693c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 12703c6e15bcSPyun YongHyeon "could not create parent buffer DMA tag.\n"); 12713c6e15bcSPyun YongHyeon goto fail; 12723c6e15bcSPyun YongHyeon } 12733c6e15bcSPyun YongHyeon 12743c6e15bcSPyun YongHyeon /* Create DMA tag for Tx buffers. */ 12753c6e15bcSPyun YongHyeon error = bus_dma_tag_create( 12763c6e15bcSPyun YongHyeon sc->ale_cdata.ale_buffer_tag, /* parent */ 12773c6e15bcSPyun YongHyeon 1, 0, /* alignment, boundary */ 12783c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* lowaddr */ 12793c6e15bcSPyun YongHyeon BUS_SPACE_MAXADDR, /* highaddr */ 12803c6e15bcSPyun YongHyeon NULL, NULL, /* filter, filterarg */ 12813c6e15bcSPyun YongHyeon ALE_TSO_MAXSIZE, /* maxsize */ 12823c6e15bcSPyun YongHyeon ALE_MAXTXSEGS, /* nsegments */ 12833c6e15bcSPyun YongHyeon ALE_TSO_MAXSEGSIZE, /* maxsegsize */ 12843c6e15bcSPyun YongHyeon 0, /* flags */ 12853c6e15bcSPyun YongHyeon NULL, NULL, /* lockfunc, lockarg */ 12863c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_tx_tag); 12873c6e15bcSPyun YongHyeon if (error != 0) { 12883c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "could not create Tx DMA tag.\n"); 12893c6e15bcSPyun YongHyeon goto fail; 12903c6e15bcSPyun YongHyeon } 12913c6e15bcSPyun YongHyeon 12923c6e15bcSPyun YongHyeon /* Create DMA maps for Tx buffers. */ 12933c6e15bcSPyun YongHyeon for (i = 0; i < ALE_TX_RING_CNT; i++) { 12943c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[i]; 12953c6e15bcSPyun YongHyeon txd->tx_m = NULL; 12963c6e15bcSPyun YongHyeon txd->tx_dmamap = NULL; 12973c6e15bcSPyun YongHyeon error = bus_dmamap_create(sc->ale_cdata.ale_tx_tag, 0, 12983c6e15bcSPyun YongHyeon &txd->tx_dmamap); 12993c6e15bcSPyun YongHyeon if (error != 0) { 13003c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 13013c6e15bcSPyun YongHyeon "could not create Tx dmamap.\n"); 13023c6e15bcSPyun YongHyeon goto fail; 13033c6e15bcSPyun YongHyeon } 13043c6e15bcSPyun YongHyeon } 13053c6e15bcSPyun YongHyeon 13063c6e15bcSPyun YongHyeon fail: 13073c6e15bcSPyun YongHyeon return (error); 13083c6e15bcSPyun YongHyeon } 13093c6e15bcSPyun YongHyeon 13103c6e15bcSPyun YongHyeon static void 13113c6e15bcSPyun YongHyeon ale_dma_free(struct ale_softc *sc) 13123c6e15bcSPyun YongHyeon { 13133c6e15bcSPyun YongHyeon struct ale_txdesc *txd; 13143c6e15bcSPyun YongHyeon int i; 13153c6e15bcSPyun YongHyeon 13163c6e15bcSPyun YongHyeon /* Tx buffers. */ 13173c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_tag != NULL) { 13183c6e15bcSPyun YongHyeon for (i = 0; i < ALE_TX_RING_CNT; i++) { 13193c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[i]; 13203c6e15bcSPyun YongHyeon if (txd->tx_dmamap != NULL) { 13213c6e15bcSPyun YongHyeon bus_dmamap_destroy(sc->ale_cdata.ale_tx_tag, 13223c6e15bcSPyun YongHyeon txd->tx_dmamap); 13233c6e15bcSPyun YongHyeon txd->tx_dmamap = NULL; 13243c6e15bcSPyun YongHyeon } 13253c6e15bcSPyun YongHyeon } 13263c6e15bcSPyun YongHyeon bus_dma_tag_destroy(sc->ale_cdata.ale_tx_tag); 13273c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_tag = NULL; 13283c6e15bcSPyun YongHyeon } 13293c6e15bcSPyun YongHyeon /* Tx descriptor ring. */ 13303c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_ring_tag != NULL) { 1331068d8643SJohn Baldwin if (sc->ale_cdata.ale_tx_ring_paddr != 0) 13323c6e15bcSPyun YongHyeon bus_dmamap_unload(sc->ale_cdata.ale_tx_ring_tag, 13333c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map); 1334068d8643SJohn Baldwin if (sc->ale_cdata.ale_tx_ring != NULL) 13353c6e15bcSPyun YongHyeon bus_dmamem_free(sc->ale_cdata.ale_tx_ring_tag, 13363c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring, 13373c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map); 1338068d8643SJohn Baldwin sc->ale_cdata.ale_tx_ring_paddr = 0; 13393c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring = NULL; 13403c6e15bcSPyun YongHyeon bus_dma_tag_destroy(sc->ale_cdata.ale_tx_ring_tag); 13413c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_tag = NULL; 13423c6e15bcSPyun YongHyeon } 13433c6e15bcSPyun YongHyeon /* Rx page block. */ 13443c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 13453c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_rx_page[i].page_tag != NULL) { 1346068d8643SJohn Baldwin if (sc->ale_cdata.ale_rx_page[i].page_paddr != 0) 13473c6e15bcSPyun YongHyeon bus_dmamap_unload( 13483c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_tag, 13493c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_map); 1350068d8643SJohn Baldwin if (sc->ale_cdata.ale_rx_page[i].page_addr != NULL) 13513c6e15bcSPyun YongHyeon bus_dmamem_free( 13523c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_tag, 13533c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_addr, 13543c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_map); 1355068d8643SJohn Baldwin sc->ale_cdata.ale_rx_page[i].page_paddr = 0; 13563c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_addr = NULL; 13573c6e15bcSPyun YongHyeon bus_dma_tag_destroy( 13583c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_tag); 13593c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].page_tag = NULL; 13603c6e15bcSPyun YongHyeon } 13613c6e15bcSPyun YongHyeon } 13623c6e15bcSPyun YongHyeon /* Rx CMB. */ 13633c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 13643c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_rx_page[i].cmb_tag != NULL) { 1365068d8643SJohn Baldwin if (sc->ale_cdata.ale_rx_page[i].cmb_paddr != 0) 13663c6e15bcSPyun YongHyeon bus_dmamap_unload( 13673c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_tag, 13683c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_map); 1369068d8643SJohn Baldwin if (sc->ale_cdata.ale_rx_page[i].cmb_addr != NULL) 13703c6e15bcSPyun YongHyeon bus_dmamem_free( 13713c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_tag, 13723c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_addr, 13733c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_map); 1374068d8643SJohn Baldwin sc->ale_cdata.ale_rx_page[i].cmb_paddr = 0; 13753c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_addr = NULL; 13763c6e15bcSPyun YongHyeon bus_dma_tag_destroy( 13773c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_tag); 13783c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_page[i].cmb_tag = NULL; 13793c6e15bcSPyun YongHyeon } 13803c6e15bcSPyun YongHyeon } 13813c6e15bcSPyun YongHyeon /* Tx CMB. */ 13823c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_cmb_tag != NULL) { 1383068d8643SJohn Baldwin if (sc->ale_cdata.ale_tx_cmb_paddr != 0) 13843c6e15bcSPyun YongHyeon bus_dmamap_unload(sc->ale_cdata.ale_tx_cmb_tag, 13853c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_map); 1386068d8643SJohn Baldwin if (sc->ale_cdata.ale_tx_cmb != NULL) 13873c6e15bcSPyun YongHyeon bus_dmamem_free(sc->ale_cdata.ale_tx_cmb_tag, 13883c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb, 13893c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_map); 1390068d8643SJohn Baldwin sc->ale_cdata.ale_tx_cmb_paddr = 0; 13913c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb = NULL; 13923c6e15bcSPyun YongHyeon bus_dma_tag_destroy(sc->ale_cdata.ale_tx_cmb_tag); 13933c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_tag = NULL; 13943c6e15bcSPyun YongHyeon } 13953c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_buffer_tag != NULL) { 13963c6e15bcSPyun YongHyeon bus_dma_tag_destroy(sc->ale_cdata.ale_buffer_tag); 13973c6e15bcSPyun YongHyeon sc->ale_cdata.ale_buffer_tag = NULL; 13983c6e15bcSPyun YongHyeon } 13993c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_parent_tag != NULL) { 14003c6e15bcSPyun YongHyeon bus_dma_tag_destroy(sc->ale_cdata.ale_parent_tag); 14013c6e15bcSPyun YongHyeon sc->ale_cdata.ale_parent_tag = NULL; 14023c6e15bcSPyun YongHyeon } 14033c6e15bcSPyun YongHyeon } 14043c6e15bcSPyun YongHyeon 14053c6e15bcSPyun YongHyeon static int 14063c6e15bcSPyun YongHyeon ale_shutdown(device_t dev) 14073c6e15bcSPyun YongHyeon { 14083c6e15bcSPyun YongHyeon 14093c6e15bcSPyun YongHyeon return (ale_suspend(dev)); 14103c6e15bcSPyun YongHyeon } 14113c6e15bcSPyun YongHyeon 14123c6e15bcSPyun YongHyeon /* 14133c6e15bcSPyun YongHyeon * Note, this driver resets the link speed to 10/100Mbps by 14143c6e15bcSPyun YongHyeon * restarting auto-negotiation in suspend/shutdown phase but we 14153c6e15bcSPyun YongHyeon * don't know whether that auto-negotiation would succeed or not 14163c6e15bcSPyun YongHyeon * as driver has no control after powering off/suspend operation. 14173c6e15bcSPyun YongHyeon * If the renegotiation fail WOL may not work. Running at 1Gbps 14183c6e15bcSPyun YongHyeon * will draw more power than 375mA at 3.3V which is specified in 14193c6e15bcSPyun YongHyeon * PCI specification and that would result in complete 14203c6e15bcSPyun YongHyeon * shutdowning power to ethernet controller. 14213c6e15bcSPyun YongHyeon * 14223c6e15bcSPyun YongHyeon * TODO 14233c6e15bcSPyun YongHyeon * Save current negotiated media speed/duplex/flow-control to 14243c6e15bcSPyun YongHyeon * softc and restore the same link again after resuming. PHY 14253c6e15bcSPyun YongHyeon * handling such as power down/resetting to 100Mbps may be better 14263c6e15bcSPyun YongHyeon * handled in suspend method in phy driver. 14273c6e15bcSPyun YongHyeon */ 14283c6e15bcSPyun YongHyeon static void 14293c6e15bcSPyun YongHyeon ale_setlinkspeed(struct ale_softc *sc) 14303c6e15bcSPyun YongHyeon { 14313c6e15bcSPyun YongHyeon struct mii_data *mii; 14323c6e15bcSPyun YongHyeon int aneg, i; 14333c6e15bcSPyun YongHyeon 14343c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 14353c6e15bcSPyun YongHyeon mii_pollstat(mii); 14363c6e15bcSPyun YongHyeon aneg = 0; 14373c6e15bcSPyun YongHyeon if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 14383c6e15bcSPyun YongHyeon (IFM_ACTIVE | IFM_AVALID)) { 14393c6e15bcSPyun YongHyeon switch IFM_SUBTYPE(mii->mii_media_active) { 14403c6e15bcSPyun YongHyeon case IFM_10_T: 14413c6e15bcSPyun YongHyeon case IFM_100_TX: 14423c6e15bcSPyun YongHyeon return; 14433c6e15bcSPyun YongHyeon case IFM_1000_T: 14443c6e15bcSPyun YongHyeon aneg++; 14453c6e15bcSPyun YongHyeon break; 14463c6e15bcSPyun YongHyeon default: 14473c6e15bcSPyun YongHyeon break; 14483c6e15bcSPyun YongHyeon } 14493c6e15bcSPyun YongHyeon } 14503c6e15bcSPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, MII_100T2CR, 0); 14513c6e15bcSPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 14523c6e15bcSPyun YongHyeon MII_ANAR, ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10 | ANAR_CSMA); 14533c6e15bcSPyun YongHyeon ale_miibus_writereg(sc->ale_dev, sc->ale_phyaddr, 14543c6e15bcSPyun YongHyeon MII_BMCR, BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG); 14553c6e15bcSPyun YongHyeon DELAY(1000); 14563c6e15bcSPyun YongHyeon if (aneg != 0) { 14573c6e15bcSPyun YongHyeon /* 14583c6e15bcSPyun YongHyeon * Poll link state until ale(4) get a 10/100Mbps link. 14593c6e15bcSPyun YongHyeon */ 14603c6e15bcSPyun YongHyeon for (i = 0; i < MII_ANEGTICKS_GIGE; i++) { 14613c6e15bcSPyun YongHyeon mii_pollstat(mii); 14623c6e15bcSPyun YongHyeon if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) 14633c6e15bcSPyun YongHyeon == (IFM_ACTIVE | IFM_AVALID)) { 14643c6e15bcSPyun YongHyeon switch (IFM_SUBTYPE( 14653c6e15bcSPyun YongHyeon mii->mii_media_active)) { 14663c6e15bcSPyun YongHyeon case IFM_10_T: 14673c6e15bcSPyun YongHyeon case IFM_100_TX: 14683c6e15bcSPyun YongHyeon ale_mac_config(sc); 14693c6e15bcSPyun YongHyeon return; 14703c6e15bcSPyun YongHyeon default: 14713c6e15bcSPyun YongHyeon break; 14723c6e15bcSPyun YongHyeon } 14733c6e15bcSPyun YongHyeon } 14743c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 14753c6e15bcSPyun YongHyeon pause("alelnk", hz); 14763c6e15bcSPyun YongHyeon ALE_LOCK(sc); 14773c6e15bcSPyun YongHyeon } 14783c6e15bcSPyun YongHyeon if (i == MII_ANEGTICKS_GIGE) 14793c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 14803c6e15bcSPyun YongHyeon "establishing a link failed, WOL may not work!"); 14813c6e15bcSPyun YongHyeon } 14823c6e15bcSPyun YongHyeon /* 14833c6e15bcSPyun YongHyeon * No link, force MAC to have 100Mbps, full-duplex link. 14843c6e15bcSPyun YongHyeon * This is the last resort and may/may not work. 14853c6e15bcSPyun YongHyeon */ 14863c6e15bcSPyun YongHyeon mii->mii_media_status = IFM_AVALID | IFM_ACTIVE; 14873c6e15bcSPyun YongHyeon mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 14883c6e15bcSPyun YongHyeon ale_mac_config(sc); 14893c6e15bcSPyun YongHyeon } 14903c6e15bcSPyun YongHyeon 14913c6e15bcSPyun YongHyeon static void 14923c6e15bcSPyun YongHyeon ale_setwol(struct ale_softc *sc) 14933c6e15bcSPyun YongHyeon { 14943c6e15bcSPyun YongHyeon struct ifnet *ifp; 14953c6e15bcSPyun YongHyeon uint32_t reg, pmcs; 14963c6e15bcSPyun YongHyeon uint16_t pmstat; 14973c6e15bcSPyun YongHyeon int pmc; 14983c6e15bcSPyun YongHyeon 14993c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 15003c6e15bcSPyun YongHyeon 15013b0a4aefSJohn Baldwin if (pci_find_cap(sc->ale_dev, PCIY_PMG, &pmc) != 0) { 15023c6e15bcSPyun YongHyeon /* Disable WOL. */ 15033c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_WOL_CFG, 0); 15043c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_PCIE_PHYMISC); 15053c6e15bcSPyun YongHyeon reg |= PCIE_PHYMISC_FORCE_RCV_DET; 15063c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_PCIE_PHYMISC, reg); 15073c6e15bcSPyun YongHyeon /* Force PHY power down. */ 15083c6e15bcSPyun YongHyeon CSR_WRITE_2(sc, ALE_GPHY_CTRL, 15093c6e15bcSPyun YongHyeon GPHY_CTRL_EXT_RESET | GPHY_CTRL_HIB_EN | 15103c6e15bcSPyun YongHyeon GPHY_CTRL_HIB_PULSE | GPHY_CTRL_PHY_PLL_ON | 15113c6e15bcSPyun YongHyeon GPHY_CTRL_SEL_ANA_RESET | GPHY_CTRL_PHY_IDDQ | 15123c6e15bcSPyun YongHyeon GPHY_CTRL_PCLK_SEL_DIS | GPHY_CTRL_PWDOWN_HW); 15133c6e15bcSPyun YongHyeon return; 15143c6e15bcSPyun YongHyeon } 15153c6e15bcSPyun YongHyeon 15163c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 15173c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL) != 0) { 15183c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_FASTETHER) == 0) 15193c6e15bcSPyun YongHyeon ale_setlinkspeed(sc); 15203c6e15bcSPyun YongHyeon } 15213c6e15bcSPyun YongHyeon 15223c6e15bcSPyun YongHyeon pmcs = 0; 15233c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0) 15243c6e15bcSPyun YongHyeon pmcs |= WOL_CFG_MAGIC | WOL_CFG_MAGIC_ENB; 15253c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_WOL_CFG, pmcs); 15263c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_MAC_CFG); 15273c6e15bcSPyun YongHyeon reg &= ~(MAC_CFG_DBG | MAC_CFG_PROMISC | MAC_CFG_ALLMULTI | 15283c6e15bcSPyun YongHyeon MAC_CFG_BCAST); 15293c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL_MCAST) != 0) 15303c6e15bcSPyun YongHyeon reg |= MAC_CFG_ALLMULTI | MAC_CFG_BCAST; 15313c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL) != 0) 15323c6e15bcSPyun YongHyeon reg |= MAC_CFG_RX_ENB; 15333c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 15343c6e15bcSPyun YongHyeon 15353c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL) == 0) { 15363c6e15bcSPyun YongHyeon /* WOL disabled, PHY power down. */ 15373c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_PCIE_PHYMISC); 15383c6e15bcSPyun YongHyeon reg |= PCIE_PHYMISC_FORCE_RCV_DET; 15393c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_PCIE_PHYMISC, reg); 15403c6e15bcSPyun YongHyeon CSR_WRITE_2(sc, ALE_GPHY_CTRL, 15413c6e15bcSPyun YongHyeon GPHY_CTRL_EXT_RESET | GPHY_CTRL_HIB_EN | 15423c6e15bcSPyun YongHyeon GPHY_CTRL_HIB_PULSE | GPHY_CTRL_SEL_ANA_RESET | 15433c6e15bcSPyun YongHyeon GPHY_CTRL_PHY_IDDQ | GPHY_CTRL_PCLK_SEL_DIS | 15443c6e15bcSPyun YongHyeon GPHY_CTRL_PWDOWN_HW); 15453c6e15bcSPyun YongHyeon } 15463c6e15bcSPyun YongHyeon /* Request PME. */ 15473c6e15bcSPyun YongHyeon pmstat = pci_read_config(sc->ale_dev, pmc + PCIR_POWER_STATUS, 2); 15483c6e15bcSPyun YongHyeon pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE); 15493c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_WOL) != 0) 15503c6e15bcSPyun YongHyeon pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE; 15513c6e15bcSPyun YongHyeon pci_write_config(sc->ale_dev, pmc + PCIR_POWER_STATUS, pmstat, 2); 15523c6e15bcSPyun YongHyeon } 15533c6e15bcSPyun YongHyeon 15543c6e15bcSPyun YongHyeon static int 15553c6e15bcSPyun YongHyeon ale_suspend(device_t dev) 15563c6e15bcSPyun YongHyeon { 15573c6e15bcSPyun YongHyeon struct ale_softc *sc; 15583c6e15bcSPyun YongHyeon 15593c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 15603c6e15bcSPyun YongHyeon 15613c6e15bcSPyun YongHyeon ALE_LOCK(sc); 15623c6e15bcSPyun YongHyeon ale_stop(sc); 15633c6e15bcSPyun YongHyeon ale_setwol(sc); 15643c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 15653c6e15bcSPyun YongHyeon 15663c6e15bcSPyun YongHyeon return (0); 15673c6e15bcSPyun YongHyeon } 15683c6e15bcSPyun YongHyeon 15693c6e15bcSPyun YongHyeon static int 15703c6e15bcSPyun YongHyeon ale_resume(device_t dev) 15713c6e15bcSPyun YongHyeon { 15723c6e15bcSPyun YongHyeon struct ale_softc *sc; 15733c6e15bcSPyun YongHyeon struct ifnet *ifp; 15743c6e15bcSPyun YongHyeon int pmc; 157559f72548SPyun YongHyeon uint16_t pmstat; 15763c6e15bcSPyun YongHyeon 15773c6e15bcSPyun YongHyeon sc = device_get_softc(dev); 15783c6e15bcSPyun YongHyeon 15793c6e15bcSPyun YongHyeon ALE_LOCK(sc); 15803b0a4aefSJohn Baldwin if (pci_find_cap(sc->ale_dev, PCIY_PMG, &pmc) == 0) { 15813c6e15bcSPyun YongHyeon /* Disable PME and clear PME status. */ 15823c6e15bcSPyun YongHyeon pmstat = pci_read_config(sc->ale_dev, 15833c6e15bcSPyun YongHyeon pmc + PCIR_POWER_STATUS, 2); 15843c6e15bcSPyun YongHyeon if ((pmstat & PCIM_PSTAT_PMEENABLE) != 0) { 15853c6e15bcSPyun YongHyeon pmstat &= ~PCIM_PSTAT_PMEENABLE; 15863c6e15bcSPyun YongHyeon pci_write_config(sc->ale_dev, 15873c6e15bcSPyun YongHyeon pmc + PCIR_POWER_STATUS, pmstat, 2); 15883c6e15bcSPyun YongHyeon } 15893c6e15bcSPyun YongHyeon } 15903c6e15bcSPyun YongHyeon /* Reset PHY. */ 15913c6e15bcSPyun YongHyeon ale_phy_reset(sc); 15923c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 15933c6e15bcSPyun YongHyeon if ((ifp->if_flags & IFF_UP) != 0) { 15943c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 15953c6e15bcSPyun YongHyeon ale_init_locked(sc); 15963c6e15bcSPyun YongHyeon } 15973c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 15983c6e15bcSPyun YongHyeon 15993c6e15bcSPyun YongHyeon return (0); 16003c6e15bcSPyun YongHyeon } 16013c6e15bcSPyun YongHyeon 16023c6e15bcSPyun YongHyeon static int 16033c6e15bcSPyun YongHyeon ale_encap(struct ale_softc *sc, struct mbuf **m_head) 16043c6e15bcSPyun YongHyeon { 16053c6e15bcSPyun YongHyeon struct ale_txdesc *txd, *txd_last; 16063c6e15bcSPyun YongHyeon struct tx_desc *desc; 16073c6e15bcSPyun YongHyeon struct mbuf *m; 16083c6e15bcSPyun YongHyeon struct ip *ip; 16093c6e15bcSPyun YongHyeon struct tcphdr *tcp; 16103c6e15bcSPyun YongHyeon bus_dma_segment_t txsegs[ALE_MAXTXSEGS]; 16113c6e15bcSPyun YongHyeon bus_dmamap_t map; 16124c7421aaSPyun YongHyeon uint32_t cflags, hdrlen, ip_off, poff, vtag; 16133c6e15bcSPyun YongHyeon int error, i, nsegs, prod, si; 16143c6e15bcSPyun YongHyeon 16153c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 16163c6e15bcSPyun YongHyeon 16173c6e15bcSPyun YongHyeon M_ASSERTPKTHDR((*m_head)); 16183c6e15bcSPyun YongHyeon 16193c6e15bcSPyun YongHyeon m = *m_head; 16203c6e15bcSPyun YongHyeon ip = NULL; 16213c6e15bcSPyun YongHyeon tcp = NULL; 16223c6e15bcSPyun YongHyeon cflags = vtag = 0; 16233c6e15bcSPyun YongHyeon ip_off = poff = 0; 16243c6e15bcSPyun YongHyeon if ((m->m_pkthdr.csum_flags & (ALE_CSUM_FEATURES | CSUM_TSO)) != 0) { 16253c6e15bcSPyun YongHyeon /* 16263c6e15bcSPyun YongHyeon * AR81xx requires offset of TCP/UDP payload in its Tx 16273c6e15bcSPyun YongHyeon * descriptor to perform hardware Tx checksum offload. 16283c6e15bcSPyun YongHyeon * Additionally, TSO requires IP/TCP header size and 16293c6e15bcSPyun YongHyeon * modification of IP/TCP header in order to make TSO 16303c6e15bcSPyun YongHyeon * engine work. This kind of operation takes many CPU 16313c6e15bcSPyun YongHyeon * cycles on FreeBSD so fast host CPU is required to 16323c6e15bcSPyun YongHyeon * get smooth TSO performance. 16333c6e15bcSPyun YongHyeon */ 16343c6e15bcSPyun YongHyeon struct ether_header *eh; 16353c6e15bcSPyun YongHyeon 16363c6e15bcSPyun YongHyeon if (M_WRITABLE(m) == 0) { 16373c6e15bcSPyun YongHyeon /* Get a writable copy. */ 1638c6499eccSGleb Smirnoff m = m_dup(*m_head, M_NOWAIT); 16393c6e15bcSPyun YongHyeon /* Release original mbufs. */ 16403c6e15bcSPyun YongHyeon m_freem(*m_head); 16413c6e15bcSPyun YongHyeon if (m == NULL) { 16423c6e15bcSPyun YongHyeon *m_head = NULL; 16433c6e15bcSPyun YongHyeon return (ENOBUFS); 16443c6e15bcSPyun YongHyeon } 16453c6e15bcSPyun YongHyeon *m_head = m; 16463c6e15bcSPyun YongHyeon } 16473c6e15bcSPyun YongHyeon 16483c6e15bcSPyun YongHyeon /* 16493c6e15bcSPyun YongHyeon * Buggy-controller requires 4 byte aligned Tx buffer 16503c6e15bcSPyun YongHyeon * to make custom checksum offload work. 16513c6e15bcSPyun YongHyeon */ 16523c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_TXCSUM_BUG) != 0 && 16533c6e15bcSPyun YongHyeon (m->m_pkthdr.csum_flags & ALE_CSUM_FEATURES) != 0 && 16543c6e15bcSPyun YongHyeon (mtod(m, intptr_t) & 3) != 0) { 1655c6499eccSGleb Smirnoff m = m_defrag(*m_head, M_NOWAIT); 16563c6e15bcSPyun YongHyeon if (m == NULL) { 16572c6d18ebSPyun YongHyeon m_freem(*m_head); 16583c6e15bcSPyun YongHyeon *m_head = NULL; 16593c6e15bcSPyun YongHyeon return (ENOBUFS); 16603c6e15bcSPyun YongHyeon } 16613c6e15bcSPyun YongHyeon *m_head = m; 16623c6e15bcSPyun YongHyeon } 16633c6e15bcSPyun YongHyeon 16643c6e15bcSPyun YongHyeon ip_off = sizeof(struct ether_header); 16653c6e15bcSPyun YongHyeon m = m_pullup(m, ip_off); 16663c6e15bcSPyun YongHyeon if (m == NULL) { 16673c6e15bcSPyun YongHyeon *m_head = NULL; 16683c6e15bcSPyun YongHyeon return (ENOBUFS); 16693c6e15bcSPyun YongHyeon } 16703c6e15bcSPyun YongHyeon eh = mtod(m, struct ether_header *); 16713c6e15bcSPyun YongHyeon /* 16723c6e15bcSPyun YongHyeon * Check if hardware VLAN insertion is off. 16733c6e15bcSPyun YongHyeon * Additional check for LLC/SNAP frame? 16743c6e15bcSPyun YongHyeon */ 16753c6e15bcSPyun YongHyeon if (eh->ether_type == htons(ETHERTYPE_VLAN)) { 16763c6e15bcSPyun YongHyeon ip_off = sizeof(struct ether_vlan_header); 16773c6e15bcSPyun YongHyeon m = m_pullup(m, ip_off); 16783c6e15bcSPyun YongHyeon if (m == NULL) { 16793c6e15bcSPyun YongHyeon *m_head = NULL; 16803c6e15bcSPyun YongHyeon return (ENOBUFS); 16813c6e15bcSPyun YongHyeon } 16823c6e15bcSPyun YongHyeon } 16833c6e15bcSPyun YongHyeon m = m_pullup(m, ip_off + sizeof(struct ip)); 16843c6e15bcSPyun YongHyeon if (m == NULL) { 16853c6e15bcSPyun YongHyeon *m_head = NULL; 16863c6e15bcSPyun YongHyeon return (ENOBUFS); 16873c6e15bcSPyun YongHyeon } 16883c6e15bcSPyun YongHyeon ip = (struct ip *)(mtod(m, char *) + ip_off); 16893c6e15bcSPyun YongHyeon poff = ip_off + (ip->ip_hl << 2); 16903c6e15bcSPyun YongHyeon if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 16913c6e15bcSPyun YongHyeon /* 16923c6e15bcSPyun YongHyeon * XXX 16933c6e15bcSPyun YongHyeon * AR81xx requires the first descriptor should 16943c6e15bcSPyun YongHyeon * not include any TCP playload for TSO case. 16953c6e15bcSPyun YongHyeon * (i.e. ethernet header + IP + TCP header only) 16963c6e15bcSPyun YongHyeon * m_pullup(9) above will ensure this too. 16973c6e15bcSPyun YongHyeon * However it's not correct if the first mbuf 16983c6e15bcSPyun YongHyeon * of the chain does not use cluster. 16993c6e15bcSPyun YongHyeon */ 17003c6e15bcSPyun YongHyeon m = m_pullup(m, poff + sizeof(struct tcphdr)); 17013c6e15bcSPyun YongHyeon if (m == NULL) { 17023c6e15bcSPyun YongHyeon *m_head = NULL; 17033c6e15bcSPyun YongHyeon return (ENOBUFS); 17043c6e15bcSPyun YongHyeon } 170596486faaSPyun YongHyeon ip = (struct ip *)(mtod(m, char *) + ip_off); 17063c6e15bcSPyun YongHyeon tcp = (struct tcphdr *)(mtod(m, char *) + poff); 17074c7421aaSPyun YongHyeon m = m_pullup(m, poff + (tcp->th_off << 2)); 17084c7421aaSPyun YongHyeon if (m == NULL) { 17094c7421aaSPyun YongHyeon *m_head = NULL; 17104c7421aaSPyun YongHyeon return (ENOBUFS); 17114c7421aaSPyun YongHyeon } 17123c6e15bcSPyun YongHyeon /* 17133c6e15bcSPyun YongHyeon * AR81xx requires IP/TCP header size and offset as 17143c6e15bcSPyun YongHyeon * well as TCP pseudo checksum which complicates 17153c6e15bcSPyun YongHyeon * TSO configuration. I guess this comes from the 17163c6e15bcSPyun YongHyeon * adherence to Microsoft NDIS Large Send 17173c6e15bcSPyun YongHyeon * specification which requires insertion of 17183c6e15bcSPyun YongHyeon * pseudo checksum by upper stack. The pseudo 17193c6e15bcSPyun YongHyeon * checksum that NDIS refers to doesn't include 17203c6e15bcSPyun YongHyeon * TCP payload length so ale(4) should recompute 17213c6e15bcSPyun YongHyeon * the pseudo checksum here. Hopefully this wouldn't 17223c6e15bcSPyun YongHyeon * be much burden on modern CPUs. 17233c6e15bcSPyun YongHyeon * Reset IP checksum and recompute TCP pseudo 17243c6e15bcSPyun YongHyeon * checksum as NDIS specification said. 17253c6e15bcSPyun YongHyeon */ 17263c6e15bcSPyun YongHyeon ip->ip_sum = 0; 17273c6e15bcSPyun YongHyeon tcp->th_sum = in_pseudo(ip->ip_src.s_addr, 17283c6e15bcSPyun YongHyeon ip->ip_dst.s_addr, htons(IPPROTO_TCP)); 17293c6e15bcSPyun YongHyeon } 17303c6e15bcSPyun YongHyeon *m_head = m; 17313c6e15bcSPyun YongHyeon } 17323c6e15bcSPyun YongHyeon 17333c6e15bcSPyun YongHyeon si = prod = sc->ale_cdata.ale_tx_prod; 17343c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[prod]; 17353c6e15bcSPyun YongHyeon txd_last = txd; 17363c6e15bcSPyun YongHyeon map = txd->tx_dmamap; 17373c6e15bcSPyun YongHyeon 17383c6e15bcSPyun YongHyeon error = bus_dmamap_load_mbuf_sg(sc->ale_cdata.ale_tx_tag, map, 17393c6e15bcSPyun YongHyeon *m_head, txsegs, &nsegs, 0); 17403c6e15bcSPyun YongHyeon if (error == EFBIG) { 1741c6499eccSGleb Smirnoff m = m_collapse(*m_head, M_NOWAIT, ALE_MAXTXSEGS); 17423c6e15bcSPyun YongHyeon if (m == NULL) { 17433c6e15bcSPyun YongHyeon m_freem(*m_head); 17443c6e15bcSPyun YongHyeon *m_head = NULL; 17453c6e15bcSPyun YongHyeon return (ENOMEM); 17463c6e15bcSPyun YongHyeon } 17473c6e15bcSPyun YongHyeon *m_head = m; 17483c6e15bcSPyun YongHyeon error = bus_dmamap_load_mbuf_sg(sc->ale_cdata.ale_tx_tag, map, 17493c6e15bcSPyun YongHyeon *m_head, txsegs, &nsegs, 0); 17503c6e15bcSPyun YongHyeon if (error != 0) { 17513c6e15bcSPyun YongHyeon m_freem(*m_head); 17523c6e15bcSPyun YongHyeon *m_head = NULL; 17533c6e15bcSPyun YongHyeon return (error); 17543c6e15bcSPyun YongHyeon } 17553c6e15bcSPyun YongHyeon } else if (error != 0) 17563c6e15bcSPyun YongHyeon return (error); 17573c6e15bcSPyun YongHyeon if (nsegs == 0) { 17583c6e15bcSPyun YongHyeon m_freem(*m_head); 17593c6e15bcSPyun YongHyeon *m_head = NULL; 17603c6e15bcSPyun YongHyeon return (EIO); 17613c6e15bcSPyun YongHyeon } 17623c6e15bcSPyun YongHyeon 17633c6e15bcSPyun YongHyeon /* Check descriptor overrun. */ 17644c7421aaSPyun YongHyeon if (sc->ale_cdata.ale_tx_cnt + nsegs >= ALE_TX_RING_CNT - 3) { 17653c6e15bcSPyun YongHyeon bus_dmamap_unload(sc->ale_cdata.ale_tx_tag, map); 17663c6e15bcSPyun YongHyeon return (ENOBUFS); 17673c6e15bcSPyun YongHyeon } 17683c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_tag, map, BUS_DMASYNC_PREWRITE); 17693c6e15bcSPyun YongHyeon 17703c6e15bcSPyun YongHyeon m = *m_head; 17716da6d0a9SPyun YongHyeon if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 17726da6d0a9SPyun YongHyeon /* Request TSO and set MSS. */ 17736da6d0a9SPyun YongHyeon cflags |= ALE_TD_TSO; 17746da6d0a9SPyun YongHyeon cflags |= ((uint32_t)m->m_pkthdr.tso_segsz << ALE_TD_MSS_SHIFT); 17756da6d0a9SPyun YongHyeon /* Set IP/TCP header size. */ 17766da6d0a9SPyun YongHyeon cflags |= ip->ip_hl << ALE_TD_IPHDR_LEN_SHIFT; 17776da6d0a9SPyun YongHyeon cflags |= tcp->th_off << ALE_TD_TCPHDR_LEN_SHIFT; 17786da6d0a9SPyun YongHyeon } else if ((m->m_pkthdr.csum_flags & ALE_CSUM_FEATURES) != 0) { 17793c6e15bcSPyun YongHyeon /* 17803c6e15bcSPyun YongHyeon * AR81xx supports Tx custom checksum offload feature 17813c6e15bcSPyun YongHyeon * that offloads single 16bit checksum computation. 17823c6e15bcSPyun YongHyeon * So you can choose one among IP, TCP and UDP. 17833c6e15bcSPyun YongHyeon * Normally driver sets checksum start/insertion 17843c6e15bcSPyun YongHyeon * position from the information of TCP/UDP frame as 17853c6e15bcSPyun YongHyeon * TCP/UDP checksum takes more time than that of IP. 17863c6e15bcSPyun YongHyeon * However it seems that custom checksum offload 17873c6e15bcSPyun YongHyeon * requires 4 bytes aligned Tx buffers due to hardware 17883c6e15bcSPyun YongHyeon * bug. 17893c6e15bcSPyun YongHyeon * AR81xx also supports explicit Tx checksum computation 17903c6e15bcSPyun YongHyeon * if it is told that the size of IP header and TCP 17913c6e15bcSPyun YongHyeon * header(for UDP, the header size does not matter 17923c6e15bcSPyun YongHyeon * because it's fixed length). However with this scheme 17933c6e15bcSPyun YongHyeon * TSO does not work so you have to choose one either 17943c6e15bcSPyun YongHyeon * TSO or explicit Tx checksum offload. I chosen TSO 17953c6e15bcSPyun YongHyeon * plus custom checksum offload with work-around which 17963c6e15bcSPyun YongHyeon * will cover most common usage for this consumer 17973c6e15bcSPyun YongHyeon * ethernet controller. The work-around takes a lot of 17983c6e15bcSPyun YongHyeon * CPU cycles if Tx buffer is not aligned on 4 bytes 17993c6e15bcSPyun YongHyeon * boundary, though. 18003c6e15bcSPyun YongHyeon */ 18013c6e15bcSPyun YongHyeon cflags |= ALE_TD_CXSUM; 18023c6e15bcSPyun YongHyeon /* Set checksum start offset. */ 18033c6e15bcSPyun YongHyeon cflags |= (poff << ALE_TD_CSUM_PLOADOFFSET_SHIFT); 18043c6e15bcSPyun YongHyeon /* Set checksum insertion position of TCP/UDP. */ 18053c6e15bcSPyun YongHyeon cflags |= ((poff + m->m_pkthdr.csum_data) << 18063c6e15bcSPyun YongHyeon ALE_TD_CSUM_XSUMOFFSET_SHIFT); 18073c6e15bcSPyun YongHyeon } 18083c6e15bcSPyun YongHyeon 18093c6e15bcSPyun YongHyeon /* Configure VLAN hardware tag insertion. */ 18103c6e15bcSPyun YongHyeon if ((m->m_flags & M_VLANTAG) != 0) { 18113c6e15bcSPyun YongHyeon vtag = ALE_TX_VLAN_TAG(m->m_pkthdr.ether_vtag); 18123c6e15bcSPyun YongHyeon vtag = ((vtag << ALE_TD_VLAN_SHIFT) & ALE_TD_VLAN_MASK); 18133c6e15bcSPyun YongHyeon cflags |= ALE_TD_INSERT_VLAN_TAG; 18143c6e15bcSPyun YongHyeon } 18153c6e15bcSPyun YongHyeon 18164c7421aaSPyun YongHyeon i = 0; 18174c7421aaSPyun YongHyeon if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 18184c7421aaSPyun YongHyeon /* 18194c7421aaSPyun YongHyeon * Make sure the first fragment contains 18204c7421aaSPyun YongHyeon * only ethernet and IP/TCP header with options. 18214c7421aaSPyun YongHyeon */ 18224c7421aaSPyun YongHyeon hdrlen = poff + (tcp->th_off << 2); 18234c7421aaSPyun YongHyeon desc = &sc->ale_cdata.ale_tx_ring[prod]; 18244c7421aaSPyun YongHyeon desc->addr = htole64(txsegs[i].ds_addr); 18254c7421aaSPyun YongHyeon desc->len = htole32(ALE_TX_BYTES(hdrlen) | vtag); 18264c7421aaSPyun YongHyeon desc->flags = htole32(cflags); 18274c7421aaSPyun YongHyeon sc->ale_cdata.ale_tx_cnt++; 18284c7421aaSPyun YongHyeon ALE_DESC_INC(prod, ALE_TX_RING_CNT); 18294c7421aaSPyun YongHyeon if (m->m_len - hdrlen > 0) { 18304c7421aaSPyun YongHyeon /* Handle remaining payload of the first fragment. */ 18314c7421aaSPyun YongHyeon desc = &sc->ale_cdata.ale_tx_ring[prod]; 18324c7421aaSPyun YongHyeon desc->addr = htole64(txsegs[i].ds_addr + hdrlen); 18334c7421aaSPyun YongHyeon desc->len = htole32(ALE_TX_BYTES(m->m_len - hdrlen) | 18344c7421aaSPyun YongHyeon vtag); 18354c7421aaSPyun YongHyeon desc->flags = htole32(cflags); 18364c7421aaSPyun YongHyeon sc->ale_cdata.ale_tx_cnt++; 18374c7421aaSPyun YongHyeon ALE_DESC_INC(prod, ALE_TX_RING_CNT); 18384c7421aaSPyun YongHyeon } 18394c7421aaSPyun YongHyeon i = 1; 18404c7421aaSPyun YongHyeon } 18414c7421aaSPyun YongHyeon for (; i < nsegs; i++) { 18423c6e15bcSPyun YongHyeon desc = &sc->ale_cdata.ale_tx_ring[prod]; 18433c6e15bcSPyun YongHyeon desc->addr = htole64(txsegs[i].ds_addr); 18443c6e15bcSPyun YongHyeon desc->len = htole32(ALE_TX_BYTES(txsegs[i].ds_len) | vtag); 18453c6e15bcSPyun YongHyeon desc->flags = htole32(cflags); 18463c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cnt++; 18473c6e15bcSPyun YongHyeon ALE_DESC_INC(prod, ALE_TX_RING_CNT); 18483c6e15bcSPyun YongHyeon } 18493c6e15bcSPyun YongHyeon /* Update producer index. */ 18503c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_prod = prod; 18513c6e15bcSPyun YongHyeon /* Set TSO header on the first descriptor. */ 18523c6e15bcSPyun YongHyeon if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 18533c6e15bcSPyun YongHyeon desc = &sc->ale_cdata.ale_tx_ring[si]; 18543c6e15bcSPyun YongHyeon desc->flags |= htole32(ALE_TD_TSO_HDR); 18553c6e15bcSPyun YongHyeon } 18563c6e15bcSPyun YongHyeon 18573c6e15bcSPyun YongHyeon /* Finally set EOP on the last descriptor. */ 18583c6e15bcSPyun YongHyeon prod = (prod + ALE_TX_RING_CNT - 1) % ALE_TX_RING_CNT; 18593c6e15bcSPyun YongHyeon desc = &sc->ale_cdata.ale_tx_ring[prod]; 18603c6e15bcSPyun YongHyeon desc->flags |= htole32(ALE_TD_EOP); 18613c6e15bcSPyun YongHyeon 18623c6e15bcSPyun YongHyeon /* Swap dmamap of the first and the last. */ 18633c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[prod]; 18643c6e15bcSPyun YongHyeon map = txd_last->tx_dmamap; 18653c6e15bcSPyun YongHyeon txd_last->tx_dmamap = txd->tx_dmamap; 18663c6e15bcSPyun YongHyeon txd->tx_dmamap = map; 18673c6e15bcSPyun YongHyeon txd->tx_m = m; 18683c6e15bcSPyun YongHyeon 18693c6e15bcSPyun YongHyeon /* Sync descriptors. */ 18703c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_ring_tag, 18713c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map, 18723c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 18733c6e15bcSPyun YongHyeon 18743c6e15bcSPyun YongHyeon return (0); 18753c6e15bcSPyun YongHyeon } 18763c6e15bcSPyun YongHyeon 18773c6e15bcSPyun YongHyeon static void 187832341ad6SJohn Baldwin ale_start(struct ifnet *ifp) 18793c6e15bcSPyun YongHyeon { 188032341ad6SJohn Baldwin struct ale_softc *sc; 18813c6e15bcSPyun YongHyeon 188232341ad6SJohn Baldwin sc = ifp->if_softc; 188332341ad6SJohn Baldwin ALE_LOCK(sc); 188432341ad6SJohn Baldwin ale_start_locked(ifp); 188532341ad6SJohn Baldwin ALE_UNLOCK(sc); 18863c6e15bcSPyun YongHyeon } 18873c6e15bcSPyun YongHyeon 18883c6e15bcSPyun YongHyeon static void 188932341ad6SJohn Baldwin ale_start_locked(struct ifnet *ifp) 18903c6e15bcSPyun YongHyeon { 18913c6e15bcSPyun YongHyeon struct ale_softc *sc; 18923c6e15bcSPyun YongHyeon struct mbuf *m_head; 18933c6e15bcSPyun YongHyeon int enq; 18943c6e15bcSPyun YongHyeon 18953c6e15bcSPyun YongHyeon sc = ifp->if_softc; 18963c6e15bcSPyun YongHyeon 189732341ad6SJohn Baldwin ALE_LOCK_ASSERT(sc); 18983c6e15bcSPyun YongHyeon 18993c6e15bcSPyun YongHyeon /* Reclaim transmitted frames. */ 19003c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_cnt >= ALE_TX_DESC_HIWAT) 19013c6e15bcSPyun YongHyeon ale_txeof(sc); 19023c6e15bcSPyun YongHyeon 19033c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 190432341ad6SJohn Baldwin IFF_DRV_RUNNING || (sc->ale_flags & ALE_FLAG_LINK) == 0) 19053c6e15bcSPyun YongHyeon return; 19063c6e15bcSPyun YongHyeon 19073c6e15bcSPyun YongHyeon for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd); ) { 19083c6e15bcSPyun YongHyeon IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 19093c6e15bcSPyun YongHyeon if (m_head == NULL) 19103c6e15bcSPyun YongHyeon break; 19113c6e15bcSPyun YongHyeon /* 19123c6e15bcSPyun YongHyeon * Pack the data into the transmit ring. If we 19133c6e15bcSPyun YongHyeon * don't have room, set the OACTIVE flag and wait 19143c6e15bcSPyun YongHyeon * for the NIC to drain the ring. 19153c6e15bcSPyun YongHyeon */ 19163c6e15bcSPyun YongHyeon if (ale_encap(sc, &m_head)) { 19173c6e15bcSPyun YongHyeon if (m_head == NULL) 19183c6e15bcSPyun YongHyeon break; 19193c6e15bcSPyun YongHyeon IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 19203c6e15bcSPyun YongHyeon ifp->if_drv_flags |= IFF_DRV_OACTIVE; 19213c6e15bcSPyun YongHyeon break; 19223c6e15bcSPyun YongHyeon } 19233c6e15bcSPyun YongHyeon 19243c6e15bcSPyun YongHyeon enq++; 19253c6e15bcSPyun YongHyeon /* 19263c6e15bcSPyun YongHyeon * If there's a BPF listener, bounce a copy of this frame 19273c6e15bcSPyun YongHyeon * to him. 19283c6e15bcSPyun YongHyeon */ 19293c6e15bcSPyun YongHyeon ETHER_BPF_MTAP(ifp, m_head); 19303c6e15bcSPyun YongHyeon } 19313c6e15bcSPyun YongHyeon 19323c6e15bcSPyun YongHyeon if (enq > 0) { 19333c6e15bcSPyun YongHyeon /* Kick. */ 19343c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MBOX_TPD_PROD_IDX, 19353c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_prod); 19363c6e15bcSPyun YongHyeon /* Set a timeout in case the chip goes out to lunch. */ 19373c6e15bcSPyun YongHyeon sc->ale_watchdog_timer = ALE_TX_TIMEOUT; 19383c6e15bcSPyun YongHyeon } 19393c6e15bcSPyun YongHyeon } 19403c6e15bcSPyun YongHyeon 19413c6e15bcSPyun YongHyeon static void 19423c6e15bcSPyun YongHyeon ale_watchdog(struct ale_softc *sc) 19433c6e15bcSPyun YongHyeon { 19443c6e15bcSPyun YongHyeon struct ifnet *ifp; 19453c6e15bcSPyun YongHyeon 19463c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 19473c6e15bcSPyun YongHyeon 19483c6e15bcSPyun YongHyeon if (sc->ale_watchdog_timer == 0 || --sc->ale_watchdog_timer) 19493c6e15bcSPyun YongHyeon return; 19503c6e15bcSPyun YongHyeon 19513c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 19523c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_LINK) == 0) { 19533c6e15bcSPyun YongHyeon if_printf(sc->ale_ifp, "watchdog timeout (lost link)\n"); 195449998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 19553c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 19563c6e15bcSPyun YongHyeon ale_init_locked(sc); 19573c6e15bcSPyun YongHyeon return; 19583c6e15bcSPyun YongHyeon } 19593c6e15bcSPyun YongHyeon if_printf(sc->ale_ifp, "watchdog timeout -- resetting\n"); 196049998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 19613c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 19623c6e15bcSPyun YongHyeon ale_init_locked(sc); 19633c6e15bcSPyun YongHyeon if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 196432341ad6SJohn Baldwin ale_start_locked(ifp); 19653c6e15bcSPyun YongHyeon } 19663c6e15bcSPyun YongHyeon 19673c6e15bcSPyun YongHyeon static int 19683c6e15bcSPyun YongHyeon ale_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 19693c6e15bcSPyun YongHyeon { 19703c6e15bcSPyun YongHyeon struct ale_softc *sc; 19713c6e15bcSPyun YongHyeon struct ifreq *ifr; 19723c6e15bcSPyun YongHyeon struct mii_data *mii; 19733c6e15bcSPyun YongHyeon int error, mask; 19743c6e15bcSPyun YongHyeon 19753c6e15bcSPyun YongHyeon sc = ifp->if_softc; 19763c6e15bcSPyun YongHyeon ifr = (struct ifreq *)data; 19773c6e15bcSPyun YongHyeon error = 0; 19783c6e15bcSPyun YongHyeon switch (cmd) { 19793c6e15bcSPyun YongHyeon case SIOCSIFMTU: 19803c6e15bcSPyun YongHyeon if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ALE_JUMBO_MTU || 19813c6e15bcSPyun YongHyeon ((sc->ale_flags & ALE_FLAG_JUMBO) == 0 && 19823c6e15bcSPyun YongHyeon ifr->ifr_mtu > ETHERMTU)) 19833c6e15bcSPyun YongHyeon error = EINVAL; 19843c6e15bcSPyun YongHyeon else if (ifp->if_mtu != ifr->ifr_mtu) { 19853c6e15bcSPyun YongHyeon ALE_LOCK(sc); 19863c6e15bcSPyun YongHyeon ifp->if_mtu = ifr->ifr_mtu; 19873c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 19883c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 19893c6e15bcSPyun YongHyeon ale_init_locked(sc); 19903c6e15bcSPyun YongHyeon } 19913c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 19923c6e15bcSPyun YongHyeon } 19933c6e15bcSPyun YongHyeon break; 19943c6e15bcSPyun YongHyeon case SIOCSIFFLAGS: 19953c6e15bcSPyun YongHyeon ALE_LOCK(sc); 19963c6e15bcSPyun YongHyeon if ((ifp->if_flags & IFF_UP) != 0) { 19973c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 19983c6e15bcSPyun YongHyeon if (((ifp->if_flags ^ sc->ale_if_flags) 19993c6e15bcSPyun YongHyeon & (IFF_PROMISC | IFF_ALLMULTI)) != 0) 20003c6e15bcSPyun YongHyeon ale_rxfilter(sc); 20013c6e15bcSPyun YongHyeon } else { 20023c6e15bcSPyun YongHyeon ale_init_locked(sc); 20033c6e15bcSPyun YongHyeon } 20043c6e15bcSPyun YongHyeon } else { 20053c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 20063c6e15bcSPyun YongHyeon ale_stop(sc); 20073c6e15bcSPyun YongHyeon } 20083c6e15bcSPyun YongHyeon sc->ale_if_flags = ifp->if_flags; 20093c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 20103c6e15bcSPyun YongHyeon break; 20113c6e15bcSPyun YongHyeon case SIOCADDMULTI: 20123c6e15bcSPyun YongHyeon case SIOCDELMULTI: 20133c6e15bcSPyun YongHyeon ALE_LOCK(sc); 20143c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 20153c6e15bcSPyun YongHyeon ale_rxfilter(sc); 20163c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 20173c6e15bcSPyun YongHyeon break; 20183c6e15bcSPyun YongHyeon case SIOCSIFMEDIA: 20193c6e15bcSPyun YongHyeon case SIOCGIFMEDIA: 20203c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 20213c6e15bcSPyun YongHyeon error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd); 20223c6e15bcSPyun YongHyeon break; 20233c6e15bcSPyun YongHyeon case SIOCSIFCAP: 20243c6e15bcSPyun YongHyeon ALE_LOCK(sc); 20253c6e15bcSPyun YongHyeon mask = ifr->ifr_reqcap ^ ifp->if_capenable; 20263c6e15bcSPyun YongHyeon if ((mask & IFCAP_TXCSUM) != 0 && 20273c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 20283c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_TXCSUM; 20293c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 20303c6e15bcSPyun YongHyeon ifp->if_hwassist |= ALE_CSUM_FEATURES; 20313c6e15bcSPyun YongHyeon else 20323c6e15bcSPyun YongHyeon ifp->if_hwassist &= ~ALE_CSUM_FEATURES; 20333c6e15bcSPyun YongHyeon } 20343c6e15bcSPyun YongHyeon if ((mask & IFCAP_RXCSUM) != 0 && 20353c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_RXCSUM) != 0) 20363c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_RXCSUM; 20373c6e15bcSPyun YongHyeon if ((mask & IFCAP_TSO4) != 0 && 20383c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_TSO4) != 0) { 20393c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_TSO4; 20403c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_TSO4) != 0) 20413c6e15bcSPyun YongHyeon ifp->if_hwassist |= CSUM_TSO; 20423c6e15bcSPyun YongHyeon else 20433c6e15bcSPyun YongHyeon ifp->if_hwassist &= ~CSUM_TSO; 20443c6e15bcSPyun YongHyeon } 20453c6e15bcSPyun YongHyeon 20463c6e15bcSPyun YongHyeon if ((mask & IFCAP_WOL_MCAST) != 0 && 20473c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_WOL_MCAST) != 0) 20483c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_WOL_MCAST; 20493c6e15bcSPyun YongHyeon if ((mask & IFCAP_WOL_MAGIC) != 0 && 20503c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_WOL_MAGIC) != 0) 20513c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_WOL_MAGIC; 20523c6e15bcSPyun YongHyeon if ((mask & IFCAP_VLAN_HWCSUM) != 0 && 20533c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_VLAN_HWCSUM) != 0) 20543c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_VLAN_HWCSUM; 20553c6e15bcSPyun YongHyeon if ((mask & IFCAP_VLAN_HWTSO) != 0 && 20563c6e15bcSPyun YongHyeon (ifp->if_capabilities & IFCAP_VLAN_HWTSO) != 0) 20573c6e15bcSPyun YongHyeon ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 20585b8b73f6SPyun YongHyeon if ((mask & IFCAP_VLAN_HWTAGGING) != 0 && 20595b8b73f6SPyun YongHyeon (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0) { 20605b8b73f6SPyun YongHyeon ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 20613c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) == 0) 20625b8b73f6SPyun YongHyeon ifp->if_capenable &= ~IFCAP_VLAN_HWTSO; 20635b8b73f6SPyun YongHyeon ale_rxvlan(sc); 20645b8b73f6SPyun YongHyeon } 20653c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 20663c6e15bcSPyun YongHyeon VLAN_CAPABILITIES(ifp); 20673c6e15bcSPyun YongHyeon break; 20683c6e15bcSPyun YongHyeon default: 20693c6e15bcSPyun YongHyeon error = ether_ioctl(ifp, cmd, data); 20703c6e15bcSPyun YongHyeon break; 20713c6e15bcSPyun YongHyeon } 20723c6e15bcSPyun YongHyeon 20733c6e15bcSPyun YongHyeon return (error); 20743c6e15bcSPyun YongHyeon } 20753c6e15bcSPyun YongHyeon 20763c6e15bcSPyun YongHyeon static void 20773c6e15bcSPyun YongHyeon ale_mac_config(struct ale_softc *sc) 20783c6e15bcSPyun YongHyeon { 20793c6e15bcSPyun YongHyeon struct mii_data *mii; 20803c6e15bcSPyun YongHyeon uint32_t reg; 20813c6e15bcSPyun YongHyeon 20823c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 20833c6e15bcSPyun YongHyeon 20843c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 20853c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_MAC_CFG); 20863c6e15bcSPyun YongHyeon reg &= ~(MAC_CFG_FULL_DUPLEX | MAC_CFG_TX_FC | MAC_CFG_RX_FC | 20873c6e15bcSPyun YongHyeon MAC_CFG_SPEED_MASK); 20883c6e15bcSPyun YongHyeon /* Reprogram MAC with resolved speed/duplex. */ 20893c6e15bcSPyun YongHyeon switch (IFM_SUBTYPE(mii->mii_media_active)) { 20903c6e15bcSPyun YongHyeon case IFM_10_T: 20913c6e15bcSPyun YongHyeon case IFM_100_TX: 20923c6e15bcSPyun YongHyeon reg |= MAC_CFG_SPEED_10_100; 20933c6e15bcSPyun YongHyeon break; 20943c6e15bcSPyun YongHyeon case IFM_1000_T: 20953c6e15bcSPyun YongHyeon reg |= MAC_CFG_SPEED_1000; 20963c6e15bcSPyun YongHyeon break; 20973c6e15bcSPyun YongHyeon } 20983c6e15bcSPyun YongHyeon if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 20993c6e15bcSPyun YongHyeon reg |= MAC_CFG_FULL_DUPLEX; 21003c6e15bcSPyun YongHyeon if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 21013c6e15bcSPyun YongHyeon reg |= MAC_CFG_TX_FC; 21023c6e15bcSPyun YongHyeon if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 21033c6e15bcSPyun YongHyeon reg |= MAC_CFG_RX_FC; 21043c6e15bcSPyun YongHyeon } 21053c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 21063c6e15bcSPyun YongHyeon } 21073c6e15bcSPyun YongHyeon 21083c6e15bcSPyun YongHyeon static void 21093c6e15bcSPyun YongHyeon ale_stats_clear(struct ale_softc *sc) 21103c6e15bcSPyun YongHyeon { 21113c6e15bcSPyun YongHyeon struct smb sb; 21123c6e15bcSPyun YongHyeon uint32_t *reg; 21133c6e15bcSPyun YongHyeon int i; 21143c6e15bcSPyun YongHyeon 21153c6e15bcSPyun YongHyeon for (reg = &sb.rx_frames, i = 0; reg <= &sb.rx_pkts_filtered; reg++) { 21163c6e15bcSPyun YongHyeon CSR_READ_4(sc, ALE_RX_MIB_BASE + i); 21173c6e15bcSPyun YongHyeon i += sizeof(uint32_t); 21183c6e15bcSPyun YongHyeon } 21193c6e15bcSPyun YongHyeon /* Read Tx statistics. */ 21203c6e15bcSPyun YongHyeon for (reg = &sb.tx_frames, i = 0; reg <= &sb.tx_mcast_bytes; reg++) { 21213c6e15bcSPyun YongHyeon CSR_READ_4(sc, ALE_TX_MIB_BASE + i); 21223c6e15bcSPyun YongHyeon i += sizeof(uint32_t); 21233c6e15bcSPyun YongHyeon } 21243c6e15bcSPyun YongHyeon } 21253c6e15bcSPyun YongHyeon 21263c6e15bcSPyun YongHyeon static void 21273c6e15bcSPyun YongHyeon ale_stats_update(struct ale_softc *sc) 21283c6e15bcSPyun YongHyeon { 21293c6e15bcSPyun YongHyeon struct ale_hw_stats *stat; 21303c6e15bcSPyun YongHyeon struct smb sb, *smb; 21313c6e15bcSPyun YongHyeon struct ifnet *ifp; 21323c6e15bcSPyun YongHyeon uint32_t *reg; 21333c6e15bcSPyun YongHyeon int i; 21343c6e15bcSPyun YongHyeon 21353c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 21363c6e15bcSPyun YongHyeon 21373c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 21383c6e15bcSPyun YongHyeon stat = &sc->ale_stats; 21393c6e15bcSPyun YongHyeon smb = &sb; 21403c6e15bcSPyun YongHyeon 21413c6e15bcSPyun YongHyeon /* Read Rx statistics. */ 21423c6e15bcSPyun YongHyeon for (reg = &sb.rx_frames, i = 0; reg <= &sb.rx_pkts_filtered; reg++) { 21433c6e15bcSPyun YongHyeon *reg = CSR_READ_4(sc, ALE_RX_MIB_BASE + i); 21443c6e15bcSPyun YongHyeon i += sizeof(uint32_t); 21453c6e15bcSPyun YongHyeon } 21463c6e15bcSPyun YongHyeon /* Read Tx statistics. */ 21473c6e15bcSPyun YongHyeon for (reg = &sb.tx_frames, i = 0; reg <= &sb.tx_mcast_bytes; reg++) { 21483c6e15bcSPyun YongHyeon *reg = CSR_READ_4(sc, ALE_TX_MIB_BASE + i); 21493c6e15bcSPyun YongHyeon i += sizeof(uint32_t); 21503c6e15bcSPyun YongHyeon } 21513c6e15bcSPyun YongHyeon 21523c6e15bcSPyun YongHyeon /* Rx stats. */ 21533c6e15bcSPyun YongHyeon stat->rx_frames += smb->rx_frames; 21543c6e15bcSPyun YongHyeon stat->rx_bcast_frames += smb->rx_bcast_frames; 21553c6e15bcSPyun YongHyeon stat->rx_mcast_frames += smb->rx_mcast_frames; 21563c6e15bcSPyun YongHyeon stat->rx_pause_frames += smb->rx_pause_frames; 21573c6e15bcSPyun YongHyeon stat->rx_control_frames += smb->rx_control_frames; 21583c6e15bcSPyun YongHyeon stat->rx_crcerrs += smb->rx_crcerrs; 21593c6e15bcSPyun YongHyeon stat->rx_lenerrs += smb->rx_lenerrs; 21603c6e15bcSPyun YongHyeon stat->rx_bytes += smb->rx_bytes; 21613c6e15bcSPyun YongHyeon stat->rx_runts += smb->rx_runts; 21623c6e15bcSPyun YongHyeon stat->rx_fragments += smb->rx_fragments; 21633c6e15bcSPyun YongHyeon stat->rx_pkts_64 += smb->rx_pkts_64; 21643c6e15bcSPyun YongHyeon stat->rx_pkts_65_127 += smb->rx_pkts_65_127; 21653c6e15bcSPyun YongHyeon stat->rx_pkts_128_255 += smb->rx_pkts_128_255; 21663c6e15bcSPyun YongHyeon stat->rx_pkts_256_511 += smb->rx_pkts_256_511; 21673c6e15bcSPyun YongHyeon stat->rx_pkts_512_1023 += smb->rx_pkts_512_1023; 21683c6e15bcSPyun YongHyeon stat->rx_pkts_1024_1518 += smb->rx_pkts_1024_1518; 21693c6e15bcSPyun YongHyeon stat->rx_pkts_1519_max += smb->rx_pkts_1519_max; 21703c6e15bcSPyun YongHyeon stat->rx_pkts_truncated += smb->rx_pkts_truncated; 21713c6e15bcSPyun YongHyeon stat->rx_fifo_oflows += smb->rx_fifo_oflows; 21723c6e15bcSPyun YongHyeon stat->rx_rrs_errs += smb->rx_rrs_errs; 21733c6e15bcSPyun YongHyeon stat->rx_alignerrs += smb->rx_alignerrs; 21743c6e15bcSPyun YongHyeon stat->rx_bcast_bytes += smb->rx_bcast_bytes; 21753c6e15bcSPyun YongHyeon stat->rx_mcast_bytes += smb->rx_mcast_bytes; 21763c6e15bcSPyun YongHyeon stat->rx_pkts_filtered += smb->rx_pkts_filtered; 21773c6e15bcSPyun YongHyeon 21783c6e15bcSPyun YongHyeon /* Tx stats. */ 21793c6e15bcSPyun YongHyeon stat->tx_frames += smb->tx_frames; 21803c6e15bcSPyun YongHyeon stat->tx_bcast_frames += smb->tx_bcast_frames; 21813c6e15bcSPyun YongHyeon stat->tx_mcast_frames += smb->tx_mcast_frames; 21823c6e15bcSPyun YongHyeon stat->tx_pause_frames += smb->tx_pause_frames; 21833c6e15bcSPyun YongHyeon stat->tx_excess_defer += smb->tx_excess_defer; 21843c6e15bcSPyun YongHyeon stat->tx_control_frames += smb->tx_control_frames; 21853c6e15bcSPyun YongHyeon stat->tx_deferred += smb->tx_deferred; 21863c6e15bcSPyun YongHyeon stat->tx_bytes += smb->tx_bytes; 21873c6e15bcSPyun YongHyeon stat->tx_pkts_64 += smb->tx_pkts_64; 21883c6e15bcSPyun YongHyeon stat->tx_pkts_65_127 += smb->tx_pkts_65_127; 21893c6e15bcSPyun YongHyeon stat->tx_pkts_128_255 += smb->tx_pkts_128_255; 21903c6e15bcSPyun YongHyeon stat->tx_pkts_256_511 += smb->tx_pkts_256_511; 21913c6e15bcSPyun YongHyeon stat->tx_pkts_512_1023 += smb->tx_pkts_512_1023; 21923c6e15bcSPyun YongHyeon stat->tx_pkts_1024_1518 += smb->tx_pkts_1024_1518; 21933c6e15bcSPyun YongHyeon stat->tx_pkts_1519_max += smb->tx_pkts_1519_max; 21943c6e15bcSPyun YongHyeon stat->tx_single_colls += smb->tx_single_colls; 21953c6e15bcSPyun YongHyeon stat->tx_multi_colls += smb->tx_multi_colls; 21963c6e15bcSPyun YongHyeon stat->tx_late_colls += smb->tx_late_colls; 21973c6e15bcSPyun YongHyeon stat->tx_excess_colls += smb->tx_excess_colls; 21983c6e15bcSPyun YongHyeon stat->tx_underrun += smb->tx_underrun; 21993c6e15bcSPyun YongHyeon stat->tx_desc_underrun += smb->tx_desc_underrun; 22003c6e15bcSPyun YongHyeon stat->tx_lenerrs += smb->tx_lenerrs; 22013c6e15bcSPyun YongHyeon stat->tx_pkts_truncated += smb->tx_pkts_truncated; 22023c6e15bcSPyun YongHyeon stat->tx_bcast_bytes += smb->tx_bcast_bytes; 22033c6e15bcSPyun YongHyeon stat->tx_mcast_bytes += smb->tx_mcast_bytes; 22043c6e15bcSPyun YongHyeon 22053c6e15bcSPyun YongHyeon /* Update counters in ifnet. */ 220649998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_OPACKETS, smb->tx_frames); 22073c6e15bcSPyun YongHyeon 220849998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_COLLISIONS, smb->tx_single_colls + 22093c6e15bcSPyun YongHyeon smb->tx_multi_colls * 2 + smb->tx_late_colls + 22100999f75aSPyun YongHyeon smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT); 22113c6e15bcSPyun YongHyeon 22120999f75aSPyun YongHyeon if_inc_counter(ifp, IFCOUNTER_OERRORS, smb->tx_late_colls + 22130999f75aSPyun YongHyeon smb->tx_excess_colls + smb->tx_underrun + smb->tx_pkts_truncated); 22143c6e15bcSPyun YongHyeon 221549998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_IPACKETS, smb->rx_frames); 22163c6e15bcSPyun YongHyeon 221749998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_IERRORS, 221849998654SGleb Smirnoff smb->rx_crcerrs + smb->rx_lenerrs + 22193c6e15bcSPyun YongHyeon smb->rx_runts + smb->rx_pkts_truncated + 22203c6e15bcSPyun YongHyeon smb->rx_fifo_oflows + smb->rx_rrs_errs + 222149998654SGleb Smirnoff smb->rx_alignerrs); 22223c6e15bcSPyun YongHyeon } 22233c6e15bcSPyun YongHyeon 22243c6e15bcSPyun YongHyeon static int 22253c6e15bcSPyun YongHyeon ale_intr(void *arg) 22263c6e15bcSPyun YongHyeon { 22273c6e15bcSPyun YongHyeon struct ale_softc *sc; 22283c6e15bcSPyun YongHyeon uint32_t status; 22293c6e15bcSPyun YongHyeon 22303c6e15bcSPyun YongHyeon sc = (struct ale_softc *)arg; 22313c6e15bcSPyun YongHyeon 22323c6e15bcSPyun YongHyeon status = CSR_READ_4(sc, ALE_INTR_STATUS); 22333c6e15bcSPyun YongHyeon if ((status & ALE_INTRS) == 0) 22343c6e15bcSPyun YongHyeon return (FILTER_STRAY); 22353c6e15bcSPyun YongHyeon /* Disable interrupts. */ 22363c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, INTR_DIS_INT); 22373c6e15bcSPyun YongHyeon taskqueue_enqueue(sc->ale_tq, &sc->ale_int_task); 22383c6e15bcSPyun YongHyeon 22393c6e15bcSPyun YongHyeon return (FILTER_HANDLED); 22403c6e15bcSPyun YongHyeon } 22413c6e15bcSPyun YongHyeon 22423c6e15bcSPyun YongHyeon static void 22433c6e15bcSPyun YongHyeon ale_int_task(void *arg, int pending) 22443c6e15bcSPyun YongHyeon { 22453c6e15bcSPyun YongHyeon struct ale_softc *sc; 22463c6e15bcSPyun YongHyeon struct ifnet *ifp; 22473c6e15bcSPyun YongHyeon uint32_t status; 22483c6e15bcSPyun YongHyeon int more; 22493c6e15bcSPyun YongHyeon 22503c6e15bcSPyun YongHyeon sc = (struct ale_softc *)arg; 22513c6e15bcSPyun YongHyeon 22523c6e15bcSPyun YongHyeon status = CSR_READ_4(sc, ALE_INTR_STATUS); 2253287e0d97SJohn Baldwin ALE_LOCK(sc); 2254e23559dbSPyun YongHyeon if (sc->ale_morework != 0) 22553c6e15bcSPyun YongHyeon status |= INTR_RX_PKT; 22563c6e15bcSPyun YongHyeon if ((status & ALE_INTRS) == 0) 22573c6e15bcSPyun YongHyeon goto done; 22583c6e15bcSPyun YongHyeon 22593c6e15bcSPyun YongHyeon /* Acknowledge interrupts but still disable interrupts. */ 22603c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, status | INTR_DIS_INT); 22613c6e15bcSPyun YongHyeon 22623c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 22633c6e15bcSPyun YongHyeon more = 0; 22643c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 22653c6e15bcSPyun YongHyeon more = ale_rxeof(sc, sc->ale_process_limit); 22663c6e15bcSPyun YongHyeon if (more == EAGAIN) 2267e23559dbSPyun YongHyeon sc->ale_morework = 1; 22683c6e15bcSPyun YongHyeon else if (more == EIO) { 22693c6e15bcSPyun YongHyeon sc->ale_stats.reset_brk_seq++; 22703c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 22713c6e15bcSPyun YongHyeon ale_init_locked(sc); 22723c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 22733c6e15bcSPyun YongHyeon return; 22743c6e15bcSPyun YongHyeon } 22753c6e15bcSPyun YongHyeon 22763c6e15bcSPyun YongHyeon if ((status & (INTR_DMA_RD_TO_RST | INTR_DMA_WR_TO_RST)) != 0) { 22773c6e15bcSPyun YongHyeon if ((status & INTR_DMA_RD_TO_RST) != 0) 22783c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 22793c6e15bcSPyun YongHyeon "DMA read error! -- resetting\n"); 22803c6e15bcSPyun YongHyeon if ((status & INTR_DMA_WR_TO_RST) != 0) 22813c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 22823c6e15bcSPyun YongHyeon "DMA write error! -- resetting\n"); 22833c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 22843c6e15bcSPyun YongHyeon ale_init_locked(sc); 22853c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 22863c6e15bcSPyun YongHyeon return; 22873c6e15bcSPyun YongHyeon } 22883c6e15bcSPyun YongHyeon if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 228932341ad6SJohn Baldwin ale_start_locked(ifp); 22903c6e15bcSPyun YongHyeon } 22913c6e15bcSPyun YongHyeon 22923c6e15bcSPyun YongHyeon if (more == EAGAIN || 22933c6e15bcSPyun YongHyeon (CSR_READ_4(sc, ALE_INTR_STATUS) & ALE_INTRS) != 0) { 2294287e0d97SJohn Baldwin ALE_UNLOCK(sc); 22953c6e15bcSPyun YongHyeon taskqueue_enqueue(sc->ale_tq, &sc->ale_int_task); 22963c6e15bcSPyun YongHyeon return; 22973c6e15bcSPyun YongHyeon } 22983c6e15bcSPyun YongHyeon 22993c6e15bcSPyun YongHyeon done: 2300287e0d97SJohn Baldwin ALE_UNLOCK(sc); 2301287e0d97SJohn Baldwin 23023c6e15bcSPyun YongHyeon /* Re-enable interrupts. */ 23033c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, 0x7FFFFFFF); 23043c6e15bcSPyun YongHyeon } 23053c6e15bcSPyun YongHyeon 23063c6e15bcSPyun YongHyeon static void 23073c6e15bcSPyun YongHyeon ale_txeof(struct ale_softc *sc) 23083c6e15bcSPyun YongHyeon { 23093c6e15bcSPyun YongHyeon struct ifnet *ifp; 23103c6e15bcSPyun YongHyeon struct ale_txdesc *txd; 23113c6e15bcSPyun YongHyeon uint32_t cons, prod; 23123c6e15bcSPyun YongHyeon int prog; 23133c6e15bcSPyun YongHyeon 23143c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 23153c6e15bcSPyun YongHyeon 23163c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 23173c6e15bcSPyun YongHyeon 23183c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_cnt == 0) 23193c6e15bcSPyun YongHyeon return; 23203c6e15bcSPyun YongHyeon 23213c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_ring_tag, 23223c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map, 23233c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 23243c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_TXCMB_BUG) == 0) { 23253c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_cmb_tag, 23263c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_map, 23273c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 23283c6e15bcSPyun YongHyeon prod = *sc->ale_cdata.ale_tx_cmb & TPD_CNT_MASK; 23293c6e15bcSPyun YongHyeon } else 23303c6e15bcSPyun YongHyeon prod = CSR_READ_2(sc, ALE_TPD_CONS_IDX); 23313c6e15bcSPyun YongHyeon cons = sc->ale_cdata.ale_tx_cons; 23323c6e15bcSPyun YongHyeon /* 23333c6e15bcSPyun YongHyeon * Go through our Tx list and free mbufs for those 23343c6e15bcSPyun YongHyeon * frames which have been transmitted. 23353c6e15bcSPyun YongHyeon */ 23363c6e15bcSPyun YongHyeon for (prog = 0; cons != prod; prog++, 23373c6e15bcSPyun YongHyeon ALE_DESC_INC(cons, ALE_TX_RING_CNT)) { 23383c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_cnt <= 0) 23393c6e15bcSPyun YongHyeon break; 23403c6e15bcSPyun YongHyeon prog++; 23413c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 23423c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cnt--; 23433c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[cons]; 23443c6e15bcSPyun YongHyeon if (txd->tx_m != NULL) { 23453c6e15bcSPyun YongHyeon /* Reclaim transmitted mbufs. */ 23463c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_tag, 23473c6e15bcSPyun YongHyeon txd->tx_dmamap, BUS_DMASYNC_POSTWRITE); 23483c6e15bcSPyun YongHyeon bus_dmamap_unload(sc->ale_cdata.ale_tx_tag, 23493c6e15bcSPyun YongHyeon txd->tx_dmamap); 23503c6e15bcSPyun YongHyeon m_freem(txd->tx_m); 23513c6e15bcSPyun YongHyeon txd->tx_m = NULL; 23523c6e15bcSPyun YongHyeon } 23533c6e15bcSPyun YongHyeon } 23543c6e15bcSPyun YongHyeon 23553c6e15bcSPyun YongHyeon if (prog > 0) { 23563c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cons = cons; 23573c6e15bcSPyun YongHyeon /* 23583c6e15bcSPyun YongHyeon * Unarm watchdog timer only when there is no pending 23593c6e15bcSPyun YongHyeon * Tx descriptors in queue. 23603c6e15bcSPyun YongHyeon */ 23613c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_tx_cnt == 0) 23623c6e15bcSPyun YongHyeon sc->ale_watchdog_timer = 0; 23633c6e15bcSPyun YongHyeon } 23643c6e15bcSPyun YongHyeon } 23653c6e15bcSPyun YongHyeon 23663c6e15bcSPyun YongHyeon static void 23673c6e15bcSPyun YongHyeon ale_rx_update_page(struct ale_softc *sc, struct ale_rx_page **page, 23683c6e15bcSPyun YongHyeon uint32_t length, uint32_t *prod) 23693c6e15bcSPyun YongHyeon { 23703c6e15bcSPyun YongHyeon struct ale_rx_page *rx_page; 23713c6e15bcSPyun YongHyeon 23723c6e15bcSPyun YongHyeon rx_page = *page; 23733c6e15bcSPyun YongHyeon /* Update consumer position. */ 23743c6e15bcSPyun YongHyeon rx_page->cons += roundup(length + sizeof(struct rx_rs), 23753c6e15bcSPyun YongHyeon ALE_RX_PAGE_ALIGN); 23763c6e15bcSPyun YongHyeon if (rx_page->cons >= ALE_RX_PAGE_SZ) { 23773c6e15bcSPyun YongHyeon /* 23783c6e15bcSPyun YongHyeon * End of Rx page reached, let hardware reuse 23793c6e15bcSPyun YongHyeon * this page. 23803c6e15bcSPyun YongHyeon */ 23813c6e15bcSPyun YongHyeon rx_page->cons = 0; 23823c6e15bcSPyun YongHyeon *rx_page->cmb_addr = 0; 23833c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->cmb_tag, rx_page->cmb_map, 23843c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 23853c6e15bcSPyun YongHyeon CSR_WRITE_1(sc, ALE_RXF0_PAGE0 + sc->ale_cdata.ale_rx_curp, 23863c6e15bcSPyun YongHyeon RXF_VALID); 23873c6e15bcSPyun YongHyeon /* Switch to alternate Rx page. */ 23883c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_curp ^= 1; 23893c6e15bcSPyun YongHyeon rx_page = *page = 23903c6e15bcSPyun YongHyeon &sc->ale_cdata.ale_rx_page[sc->ale_cdata.ale_rx_curp]; 23913c6e15bcSPyun YongHyeon /* Page flipped, sync CMB and Rx page. */ 23923c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->page_tag, rx_page->page_map, 23933c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 23943c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->cmb_tag, rx_page->cmb_map, 23953c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 23963c6e15bcSPyun YongHyeon /* Sync completed, cache updated producer index. */ 23973c6e15bcSPyun YongHyeon *prod = *rx_page->cmb_addr; 23983c6e15bcSPyun YongHyeon } 23993c6e15bcSPyun YongHyeon } 24003c6e15bcSPyun YongHyeon 24013c6e15bcSPyun YongHyeon 24023c6e15bcSPyun YongHyeon /* 24033c6e15bcSPyun YongHyeon * It seems that AR81xx controller can compute partial checksum. 24043c6e15bcSPyun YongHyeon * The partial checksum value can be used to accelerate checksum 24053c6e15bcSPyun YongHyeon * computation for fragmented TCP/UDP packets. Upper network stack 24063c6e15bcSPyun YongHyeon * already takes advantage of the partial checksum value in IP 24073c6e15bcSPyun YongHyeon * reassembly stage. But I'm not sure the correctness of the 24083c6e15bcSPyun YongHyeon * partial hardware checksum assistance due to lack of data sheet. 24093c6e15bcSPyun YongHyeon * In addition, the Rx feature of controller that requires copying 24103c6e15bcSPyun YongHyeon * for every frames effectively nullifies one of most nice offload 24113c6e15bcSPyun YongHyeon * capability of controller. 24123c6e15bcSPyun YongHyeon */ 24133c6e15bcSPyun YongHyeon static void 24143c6e15bcSPyun YongHyeon ale_rxcsum(struct ale_softc *sc, struct mbuf *m, uint32_t status) 24153c6e15bcSPyun YongHyeon { 24163c6e15bcSPyun YongHyeon struct ifnet *ifp; 24173c6e15bcSPyun YongHyeon struct ip *ip; 24183c6e15bcSPyun YongHyeon char *p; 24193c6e15bcSPyun YongHyeon 24203c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 24213c6e15bcSPyun YongHyeon m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 24223c6e15bcSPyun YongHyeon if ((status & ALE_RD_IPCSUM_NOK) == 0) 24233c6e15bcSPyun YongHyeon m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 24243c6e15bcSPyun YongHyeon 24253c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_RXCSUM_BUG) == 0) { 24263c6e15bcSPyun YongHyeon if (((status & ALE_RD_IPV4_FRAG) == 0) && 24273c6e15bcSPyun YongHyeon ((status & (ALE_RD_TCP | ALE_RD_UDP)) != 0) && 24283c6e15bcSPyun YongHyeon ((status & ALE_RD_TCP_UDPCSUM_NOK) == 0)) { 24293c6e15bcSPyun YongHyeon m->m_pkthdr.csum_flags |= 24303c6e15bcSPyun YongHyeon CSUM_DATA_VALID | CSUM_PSEUDO_HDR; 24313c6e15bcSPyun YongHyeon m->m_pkthdr.csum_data = 0xffff; 24323c6e15bcSPyun YongHyeon } 24333c6e15bcSPyun YongHyeon } else { 24343c6e15bcSPyun YongHyeon if ((status & (ALE_RD_TCP | ALE_RD_UDP)) != 0 && 24353c6e15bcSPyun YongHyeon (status & ALE_RD_TCP_UDPCSUM_NOK) == 0) { 24363c6e15bcSPyun YongHyeon p = mtod(m, char *); 24373c6e15bcSPyun YongHyeon p += ETHER_HDR_LEN; 24383c6e15bcSPyun YongHyeon if ((status & ALE_RD_802_3) != 0) 24393c6e15bcSPyun YongHyeon p += LLC_SNAPFRAMELEN; 24403c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) == 0 && 24413c6e15bcSPyun YongHyeon (status & ALE_RD_VLAN) != 0) 24423c6e15bcSPyun YongHyeon p += ETHER_VLAN_ENCAP_LEN; 24433c6e15bcSPyun YongHyeon ip = (struct ip *)p; 24443c6e15bcSPyun YongHyeon if (ip->ip_off != 0 && (status & ALE_RD_IPV4_DF) == 0) 24453c6e15bcSPyun YongHyeon return; 24463c6e15bcSPyun YongHyeon m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 24473c6e15bcSPyun YongHyeon CSUM_PSEUDO_HDR; 24483c6e15bcSPyun YongHyeon m->m_pkthdr.csum_data = 0xffff; 24493c6e15bcSPyun YongHyeon } 24503c6e15bcSPyun YongHyeon } 24513c6e15bcSPyun YongHyeon /* 24523c6e15bcSPyun YongHyeon * Don't mark bad checksum for TCP/UDP frames 24533c6e15bcSPyun YongHyeon * as fragmented frames may always have set 24543c6e15bcSPyun YongHyeon * bad checksummed bit of frame status. 24553c6e15bcSPyun YongHyeon */ 24563c6e15bcSPyun YongHyeon } 24573c6e15bcSPyun YongHyeon 24583c6e15bcSPyun YongHyeon /* Process received frames. */ 24593c6e15bcSPyun YongHyeon static int 24603c6e15bcSPyun YongHyeon ale_rxeof(struct ale_softc *sc, int count) 24613c6e15bcSPyun YongHyeon { 24623c6e15bcSPyun YongHyeon struct ale_rx_page *rx_page; 24633c6e15bcSPyun YongHyeon struct rx_rs *rs; 24643c6e15bcSPyun YongHyeon struct ifnet *ifp; 24653c6e15bcSPyun YongHyeon struct mbuf *m; 24663c6e15bcSPyun YongHyeon uint32_t length, prod, seqno, status, vtags; 24673c6e15bcSPyun YongHyeon int prog; 24683c6e15bcSPyun YongHyeon 24693c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 24703c6e15bcSPyun YongHyeon rx_page = &sc->ale_cdata.ale_rx_page[sc->ale_cdata.ale_rx_curp]; 24713c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->cmb_tag, rx_page->cmb_map, 24723c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 24733c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->page_tag, rx_page->page_map, 24743c6e15bcSPyun YongHyeon BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 24753c6e15bcSPyun YongHyeon /* 24763c6e15bcSPyun YongHyeon * Don't directly access producer index as hardware may 24773c6e15bcSPyun YongHyeon * update it while Rx handler is in progress. It would 24783c6e15bcSPyun YongHyeon * be even better if there is a way to let hardware 24793c6e15bcSPyun YongHyeon * know how far driver processed its received frames. 24803c6e15bcSPyun YongHyeon * Alternatively, hardware could provide a way to disable 24813c6e15bcSPyun YongHyeon * CMB updates until driver acknowledges the end of CMB 24823c6e15bcSPyun YongHyeon * access. 24833c6e15bcSPyun YongHyeon */ 24843c6e15bcSPyun YongHyeon prod = *rx_page->cmb_addr; 24853c6e15bcSPyun YongHyeon for (prog = 0; prog < count; prog++) { 24863c6e15bcSPyun YongHyeon if (rx_page->cons >= prod) 24873c6e15bcSPyun YongHyeon break; 24883c6e15bcSPyun YongHyeon rs = (struct rx_rs *)(rx_page->page_addr + rx_page->cons); 24893c6e15bcSPyun YongHyeon seqno = ALE_RX_SEQNO(le32toh(rs->seqno)); 24903c6e15bcSPyun YongHyeon if (sc->ale_cdata.ale_rx_seqno != seqno) { 24913c6e15bcSPyun YongHyeon /* 24923c6e15bcSPyun YongHyeon * Normally I believe this should not happen unless 24933c6e15bcSPyun YongHyeon * severe driver bug or corrupted memory. However 24943c6e15bcSPyun YongHyeon * it seems to happen under certain conditions which 24953c6e15bcSPyun YongHyeon * is triggered by abrupt Rx events such as initiation 24963c6e15bcSPyun YongHyeon * of bulk transfer of remote host. It's not easy to 24973c6e15bcSPyun YongHyeon * reproduce this and I doubt it could be related 24983c6e15bcSPyun YongHyeon * with FIFO overflow of hardware or activity of Tx 24993c6e15bcSPyun YongHyeon * CMB updates. I also remember similar behaviour 25003c6e15bcSPyun YongHyeon * seen on RealTek 8139 which uses resembling Rx 25013c6e15bcSPyun YongHyeon * scheme. 25023c6e15bcSPyun YongHyeon */ 25033c6e15bcSPyun YongHyeon if (bootverbose) 25043c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 25053c6e15bcSPyun YongHyeon "garbled seq: %u, expected: %u -- " 25063c6e15bcSPyun YongHyeon "resetting!\n", seqno, 25073c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_seqno); 25083c6e15bcSPyun YongHyeon return (EIO); 25093c6e15bcSPyun YongHyeon } 25103c6e15bcSPyun YongHyeon /* Frame received. */ 25113c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_seqno++; 25123c6e15bcSPyun YongHyeon length = ALE_RX_BYTES(le32toh(rs->length)); 25133c6e15bcSPyun YongHyeon status = le32toh(rs->flags); 25143c6e15bcSPyun YongHyeon if ((status & ALE_RD_ERROR) != 0) { 25153c6e15bcSPyun YongHyeon /* 25163c6e15bcSPyun YongHyeon * We want to pass the following frames to upper 25173c6e15bcSPyun YongHyeon * layer regardless of error status of Rx return 25183c6e15bcSPyun YongHyeon * status. 25193c6e15bcSPyun YongHyeon * 25203c6e15bcSPyun YongHyeon * o IP/TCP/UDP checksum is bad. 25213c6e15bcSPyun YongHyeon * o frame length and protocol specific length 25223c6e15bcSPyun YongHyeon * does not match. 25233c6e15bcSPyun YongHyeon */ 25243c6e15bcSPyun YongHyeon if ((status & (ALE_RD_CRC | ALE_RD_CODE | 25253c6e15bcSPyun YongHyeon ALE_RD_DRIBBLE | ALE_RD_RUNT | ALE_RD_OFLOW | 25263c6e15bcSPyun YongHyeon ALE_RD_TRUNC)) != 0) { 25273c6e15bcSPyun YongHyeon ale_rx_update_page(sc, &rx_page, length, &prod); 25283c6e15bcSPyun YongHyeon continue; 25293c6e15bcSPyun YongHyeon } 25303c6e15bcSPyun YongHyeon } 25313c6e15bcSPyun YongHyeon /* 25323c6e15bcSPyun YongHyeon * m_devget(9) is major bottle-neck of ale(4)(It comes 25333c6e15bcSPyun YongHyeon * from hardware limitation). For jumbo frames we could 25343c6e15bcSPyun YongHyeon * get a slightly better performance if driver use 25353c6e15bcSPyun YongHyeon * m_getjcl(9) with proper buffer size argument. However 25363c6e15bcSPyun YongHyeon * that would make code more complicated and I don't 25373c6e15bcSPyun YongHyeon * think users would expect good Rx performance numbers 25383c6e15bcSPyun YongHyeon * on these low-end consumer ethernet controller. 25393c6e15bcSPyun YongHyeon */ 25403c6e15bcSPyun YongHyeon m = m_devget((char *)(rs + 1), length - ETHER_CRC_LEN, 25413c6e15bcSPyun YongHyeon ETHER_ALIGN, ifp, NULL); 25423c6e15bcSPyun YongHyeon if (m == NULL) { 254349998654SGleb Smirnoff if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 25443c6e15bcSPyun YongHyeon ale_rx_update_page(sc, &rx_page, length, &prod); 25453c6e15bcSPyun YongHyeon continue; 25463c6e15bcSPyun YongHyeon } 25473c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_RXCSUM) != 0 && 25483c6e15bcSPyun YongHyeon (status & ALE_RD_IPV4) != 0) 25493c6e15bcSPyun YongHyeon ale_rxcsum(sc, m, status); 25503c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0 && 25513c6e15bcSPyun YongHyeon (status & ALE_RD_VLAN) != 0) { 25523c6e15bcSPyun YongHyeon vtags = ALE_RX_VLAN(le32toh(rs->vtags)); 25533c6e15bcSPyun YongHyeon m->m_pkthdr.ether_vtag = ALE_RX_VLAN_TAG(vtags); 25543c6e15bcSPyun YongHyeon m->m_flags |= M_VLANTAG; 25553c6e15bcSPyun YongHyeon } 25563c6e15bcSPyun YongHyeon 25573c6e15bcSPyun YongHyeon /* Pass it to upper layer. */ 2558287e0d97SJohn Baldwin ALE_UNLOCK(sc); 25593c6e15bcSPyun YongHyeon (*ifp->if_input)(ifp, m); 2560287e0d97SJohn Baldwin ALE_LOCK(sc); 25613c6e15bcSPyun YongHyeon 25623c6e15bcSPyun YongHyeon ale_rx_update_page(sc, &rx_page, length, &prod); 25633c6e15bcSPyun YongHyeon } 25643c6e15bcSPyun YongHyeon 25653c6e15bcSPyun YongHyeon return (count > 0 ? 0 : EAGAIN); 25663c6e15bcSPyun YongHyeon } 25673c6e15bcSPyun YongHyeon 25683c6e15bcSPyun YongHyeon static void 25693c6e15bcSPyun YongHyeon ale_tick(void *arg) 25703c6e15bcSPyun YongHyeon { 25713c6e15bcSPyun YongHyeon struct ale_softc *sc; 25723c6e15bcSPyun YongHyeon struct mii_data *mii; 25733c6e15bcSPyun YongHyeon 25743c6e15bcSPyun YongHyeon sc = (struct ale_softc *)arg; 25753c6e15bcSPyun YongHyeon 25763c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 25773c6e15bcSPyun YongHyeon 25783c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 25793c6e15bcSPyun YongHyeon mii_tick(mii); 25803c6e15bcSPyun YongHyeon ale_stats_update(sc); 25813c6e15bcSPyun YongHyeon /* 25823c6e15bcSPyun YongHyeon * Reclaim Tx buffers that have been transferred. It's not 25833c6e15bcSPyun YongHyeon * needed here but it would release allocated mbuf chains 25843c6e15bcSPyun YongHyeon * faster and limit the maximum delay to a hz. 25853c6e15bcSPyun YongHyeon */ 25863c6e15bcSPyun YongHyeon ale_txeof(sc); 25873c6e15bcSPyun YongHyeon ale_watchdog(sc); 25883c6e15bcSPyun YongHyeon callout_reset(&sc->ale_tick_ch, hz, ale_tick, sc); 25893c6e15bcSPyun YongHyeon } 25903c6e15bcSPyun YongHyeon 25913c6e15bcSPyun YongHyeon static void 25923c6e15bcSPyun YongHyeon ale_reset(struct ale_softc *sc) 25933c6e15bcSPyun YongHyeon { 25943c6e15bcSPyun YongHyeon uint32_t reg; 25953c6e15bcSPyun YongHyeon int i; 25963c6e15bcSPyun YongHyeon 25973c6e15bcSPyun YongHyeon /* Initialize PCIe module. From Linux. */ 25983c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 25993c6e15bcSPyun YongHyeon 26003c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MASTER_CFG, MASTER_RESET); 26013c6e15bcSPyun YongHyeon for (i = ALE_RESET_TIMEOUT; i > 0; i--) { 26023c6e15bcSPyun YongHyeon DELAY(10); 26033c6e15bcSPyun YongHyeon if ((CSR_READ_4(sc, ALE_MASTER_CFG) & MASTER_RESET) == 0) 26043c6e15bcSPyun YongHyeon break; 26053c6e15bcSPyun YongHyeon } 26063c6e15bcSPyun YongHyeon if (i == 0) 26073c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "master reset timeout!\n"); 26083c6e15bcSPyun YongHyeon 26093c6e15bcSPyun YongHyeon for (i = ALE_RESET_TIMEOUT; i > 0; i--) { 26103c6e15bcSPyun YongHyeon if ((reg = CSR_READ_4(sc, ALE_IDLE_STATUS)) == 0) 26113c6e15bcSPyun YongHyeon break; 26123c6e15bcSPyun YongHyeon DELAY(10); 26133c6e15bcSPyun YongHyeon } 26143c6e15bcSPyun YongHyeon 26153c6e15bcSPyun YongHyeon if (i == 0) 26163c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, "reset timeout(0x%08x)!\n", reg); 26173c6e15bcSPyun YongHyeon } 26183c6e15bcSPyun YongHyeon 26193c6e15bcSPyun YongHyeon static void 26203c6e15bcSPyun YongHyeon ale_init(void *xsc) 26213c6e15bcSPyun YongHyeon { 26223c6e15bcSPyun YongHyeon struct ale_softc *sc; 26233c6e15bcSPyun YongHyeon 26243c6e15bcSPyun YongHyeon sc = (struct ale_softc *)xsc; 26253c6e15bcSPyun YongHyeon ALE_LOCK(sc); 26263c6e15bcSPyun YongHyeon ale_init_locked(sc); 26273c6e15bcSPyun YongHyeon ALE_UNLOCK(sc); 26283c6e15bcSPyun YongHyeon } 26293c6e15bcSPyun YongHyeon 26303c6e15bcSPyun YongHyeon static void 26313c6e15bcSPyun YongHyeon ale_init_locked(struct ale_softc *sc) 26323c6e15bcSPyun YongHyeon { 26333c6e15bcSPyun YongHyeon struct ifnet *ifp; 26343c6e15bcSPyun YongHyeon struct mii_data *mii; 26353c6e15bcSPyun YongHyeon uint8_t eaddr[ETHER_ADDR_LEN]; 26363c6e15bcSPyun YongHyeon bus_addr_t paddr; 26373c6e15bcSPyun YongHyeon uint32_t reg, rxf_hi, rxf_lo; 26383c6e15bcSPyun YongHyeon 26393c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 26403c6e15bcSPyun YongHyeon 26413c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 26423c6e15bcSPyun YongHyeon mii = device_get_softc(sc->ale_miibus); 26433c6e15bcSPyun YongHyeon 26443c6e15bcSPyun YongHyeon if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 26453c6e15bcSPyun YongHyeon return; 26463c6e15bcSPyun YongHyeon /* 26473c6e15bcSPyun YongHyeon * Cancel any pending I/O. 26483c6e15bcSPyun YongHyeon */ 26493c6e15bcSPyun YongHyeon ale_stop(sc); 26503c6e15bcSPyun YongHyeon /* 26513c6e15bcSPyun YongHyeon * Reset the chip to a known state. 26523c6e15bcSPyun YongHyeon */ 26533c6e15bcSPyun YongHyeon ale_reset(sc); 26543c6e15bcSPyun YongHyeon /* Initialize Tx descriptors, DMA memory blocks. */ 26553c6e15bcSPyun YongHyeon ale_init_rx_pages(sc); 26563c6e15bcSPyun YongHyeon ale_init_tx_ring(sc); 26573c6e15bcSPyun YongHyeon 26583c6e15bcSPyun YongHyeon /* Reprogram the station address. */ 26593c6e15bcSPyun YongHyeon bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN); 26603c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_PAR0, 26613c6e15bcSPyun YongHyeon eaddr[2] << 24 | eaddr[3] << 16 | eaddr[4] << 8 | eaddr[5]); 26623c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_PAR1, eaddr[0] << 8 | eaddr[1]); 26633c6e15bcSPyun YongHyeon /* 26643c6e15bcSPyun YongHyeon * Clear WOL status and disable all WOL feature as WOL 26653c6e15bcSPyun YongHyeon * would interfere Rx operation under normal environments. 26663c6e15bcSPyun YongHyeon */ 26673c6e15bcSPyun YongHyeon CSR_READ_4(sc, ALE_WOL_CFG); 26683c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_WOL_CFG, 0); 26693c6e15bcSPyun YongHyeon /* 26703c6e15bcSPyun YongHyeon * Set Tx descriptor/RXF0/CMB base addresses. They share 26713c6e15bcSPyun YongHyeon * the same high address part of DMAable region. 26723c6e15bcSPyun YongHyeon */ 26733c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_tx_ring_paddr; 26743c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TPD_ADDR_HI, ALE_ADDR_HI(paddr)); 26753c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TPD_ADDR_LO, ALE_ADDR_LO(paddr)); 26763c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TPD_CNT, 26773c6e15bcSPyun YongHyeon (ALE_TX_RING_CNT << TPD_CNT_SHIFT) & TPD_CNT_MASK); 26783c6e15bcSPyun YongHyeon /* Set Rx page base address, note we use single queue. */ 26793c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_rx_page[0].page_paddr; 26803c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXF0_PAGE0_ADDR_LO, ALE_ADDR_LO(paddr)); 26813c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_rx_page[1].page_paddr; 26823c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXF0_PAGE1_ADDR_LO, ALE_ADDR_LO(paddr)); 26833c6e15bcSPyun YongHyeon /* Set Tx/Rx CMB addresses. */ 26843c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_tx_cmb_paddr; 26853c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TX_CMB_ADDR_LO, ALE_ADDR_LO(paddr)); 26863c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_rx_page[0].cmb_paddr; 26873c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXF0_CMB0_ADDR_LO, ALE_ADDR_LO(paddr)); 26883c6e15bcSPyun YongHyeon paddr = sc->ale_cdata.ale_rx_page[1].cmb_paddr; 26893c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXF0_CMB1_ADDR_LO, ALE_ADDR_LO(paddr)); 26903c6e15bcSPyun YongHyeon /* Mark RXF0 is valid. */ 26913c6e15bcSPyun YongHyeon CSR_WRITE_1(sc, ALE_RXF0_PAGE0, RXF_VALID); 26923c6e15bcSPyun YongHyeon CSR_WRITE_1(sc, ALE_RXF0_PAGE1, RXF_VALID); 26933c6e15bcSPyun YongHyeon /* 26943c6e15bcSPyun YongHyeon * No need to initialize RFX1/RXF2/RXF3. We don't use 26953c6e15bcSPyun YongHyeon * multi-queue yet. 26963c6e15bcSPyun YongHyeon */ 26973c6e15bcSPyun YongHyeon 26983c6e15bcSPyun YongHyeon /* Set Rx page size, excluding guard frame size. */ 26993c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXF_PAGE_SIZE, ALE_RX_PAGE_SZ); 27003c6e15bcSPyun YongHyeon /* Tell hardware that we're ready to load DMA blocks. */ 27013c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_DMA_BLOCK, DMA_BLOCK_LOAD); 27023c6e15bcSPyun YongHyeon 27033c6e15bcSPyun YongHyeon /* Set Rx/Tx interrupt trigger threshold. */ 27043c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INT_TRIG_THRESH, (1 << INT_TRIG_RX_THRESH_SHIFT) | 27053c6e15bcSPyun YongHyeon (4 << INT_TRIG_TX_THRESH_SHIFT)); 27063c6e15bcSPyun YongHyeon /* 27073c6e15bcSPyun YongHyeon * XXX 27083c6e15bcSPyun YongHyeon * Set interrupt trigger timer, its purpose and relation 27093c6e15bcSPyun YongHyeon * with interrupt moderation mechanism is not clear yet. 27103c6e15bcSPyun YongHyeon */ 27113c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INT_TRIG_TIMER, 27123c6e15bcSPyun YongHyeon ((ALE_USECS(10) << INT_TRIG_RX_TIMER_SHIFT) | 27133c6e15bcSPyun YongHyeon (ALE_USECS(1000) << INT_TRIG_TX_TIMER_SHIFT))); 27143c6e15bcSPyun YongHyeon 27153c6e15bcSPyun YongHyeon /* Configure interrupt moderation timer. */ 27163c6e15bcSPyun YongHyeon reg = ALE_USECS(sc->ale_int_rx_mod) << IM_TIMER_RX_SHIFT; 27173c6e15bcSPyun YongHyeon reg |= ALE_USECS(sc->ale_int_tx_mod) << IM_TIMER_TX_SHIFT; 27183c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_IM_TIMER, reg); 27193c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_MASTER_CFG); 27203c6e15bcSPyun YongHyeon reg &= ~(MASTER_CHIP_REV_MASK | MASTER_CHIP_ID_MASK); 27213c6e15bcSPyun YongHyeon reg &= ~(MASTER_IM_RX_TIMER_ENB | MASTER_IM_TX_TIMER_ENB); 27223c6e15bcSPyun YongHyeon if (ALE_USECS(sc->ale_int_rx_mod) != 0) 27233c6e15bcSPyun YongHyeon reg |= MASTER_IM_RX_TIMER_ENB; 27243c6e15bcSPyun YongHyeon if (ALE_USECS(sc->ale_int_tx_mod) != 0) 27253c6e15bcSPyun YongHyeon reg |= MASTER_IM_TX_TIMER_ENB; 27263c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MASTER_CFG, reg); 27273c6e15bcSPyun YongHyeon CSR_WRITE_2(sc, ALE_INTR_CLR_TIMER, ALE_USECS(1000)); 27283c6e15bcSPyun YongHyeon 27293c6e15bcSPyun YongHyeon /* Set Maximum frame size of controller. */ 27303c6e15bcSPyun YongHyeon if (ifp->if_mtu < ETHERMTU) 27313c6e15bcSPyun YongHyeon sc->ale_max_frame_size = ETHERMTU; 27323c6e15bcSPyun YongHyeon else 27333c6e15bcSPyun YongHyeon sc->ale_max_frame_size = ifp->if_mtu; 27343c6e15bcSPyun YongHyeon sc->ale_max_frame_size += ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + 27353c6e15bcSPyun YongHyeon ETHER_CRC_LEN; 27363c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_FRAME_SIZE, sc->ale_max_frame_size); 27373c6e15bcSPyun YongHyeon /* Configure IPG/IFG parameters. */ 27383c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_IPG_IFG_CFG, 27393c6e15bcSPyun YongHyeon ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) & IPG_IFG_IPGT_MASK) | 27403c6e15bcSPyun YongHyeon ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) & IPG_IFG_MIFG_MASK) | 27413c6e15bcSPyun YongHyeon ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) & IPG_IFG_IPG1_MASK) | 27423c6e15bcSPyun YongHyeon ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) & IPG_IFG_IPG2_MASK)); 27433c6e15bcSPyun YongHyeon /* Set parameters for half-duplex media. */ 27443c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_HDPX_CFG, 27453c6e15bcSPyun YongHyeon ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) & 27463c6e15bcSPyun YongHyeon HDPX_CFG_LCOL_MASK) | 27473c6e15bcSPyun YongHyeon ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) & 27483c6e15bcSPyun YongHyeon HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN | 27493c6e15bcSPyun YongHyeon ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) & 27503c6e15bcSPyun YongHyeon HDPX_CFG_ABEBT_MASK) | 27513c6e15bcSPyun YongHyeon ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) & 27523c6e15bcSPyun YongHyeon HDPX_CFG_JAMIPG_MASK)); 27533c6e15bcSPyun YongHyeon 27543c6e15bcSPyun YongHyeon /* Configure Tx jumbo frame parameters. */ 27553c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_JUMBO) != 0) { 27563c6e15bcSPyun YongHyeon if (ifp->if_mtu < ETHERMTU) 27573c6e15bcSPyun YongHyeon reg = sc->ale_max_frame_size; 27583c6e15bcSPyun YongHyeon else if (ifp->if_mtu < 6 * 1024) 27593c6e15bcSPyun YongHyeon reg = (sc->ale_max_frame_size * 2) / 3; 27603c6e15bcSPyun YongHyeon else 27613c6e15bcSPyun YongHyeon reg = sc->ale_max_frame_size / 2; 27623c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TX_JUMBO_THRESH, 27633c6e15bcSPyun YongHyeon roundup(reg, TX_JUMBO_THRESH_UNIT) >> 27643c6e15bcSPyun YongHyeon TX_JUMBO_THRESH_UNIT_SHIFT); 27653c6e15bcSPyun YongHyeon } 27663c6e15bcSPyun YongHyeon /* Configure TxQ. */ 27673c6e15bcSPyun YongHyeon reg = (128 << (sc->ale_dma_rd_burst >> DMA_CFG_RD_BURST_SHIFT)) 27683c6e15bcSPyun YongHyeon << TXQ_CFG_TX_FIFO_BURST_SHIFT; 27693c6e15bcSPyun YongHyeon reg |= (TXQ_CFG_TPD_BURST_DEFAULT << TXQ_CFG_TPD_BURST_SHIFT) & 27703c6e15bcSPyun YongHyeon TXQ_CFG_TPD_BURST_MASK; 27713c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TXQ_CFG, reg | TXQ_CFG_ENHANCED_MODE | TXQ_CFG_ENB); 27723c6e15bcSPyun YongHyeon 27733c6e15bcSPyun YongHyeon /* Configure Rx jumbo frame & flow control parameters. */ 27743c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_JUMBO) != 0) { 27753c6e15bcSPyun YongHyeon reg = roundup(sc->ale_max_frame_size, RX_JUMBO_THRESH_UNIT); 27763c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RX_JUMBO_THRESH, 27773c6e15bcSPyun YongHyeon (((reg >> RX_JUMBO_THRESH_UNIT_SHIFT) << 27783c6e15bcSPyun YongHyeon RX_JUMBO_THRESH_MASK_SHIFT) & RX_JUMBO_THRESH_MASK) | 27793c6e15bcSPyun YongHyeon ((RX_JUMBO_LKAH_DEFAULT << RX_JUMBO_LKAH_SHIFT) & 27803c6e15bcSPyun YongHyeon RX_JUMBO_LKAH_MASK)); 27813c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_SRAM_RX_FIFO_LEN); 27823c6e15bcSPyun YongHyeon rxf_hi = (reg * 7) / 10; 27833c6e15bcSPyun YongHyeon rxf_lo = (reg * 3)/ 10; 27843c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RX_FIFO_PAUSE_THRESH, 27853c6e15bcSPyun YongHyeon ((rxf_lo << RX_FIFO_PAUSE_THRESH_LO_SHIFT) & 27863c6e15bcSPyun YongHyeon RX_FIFO_PAUSE_THRESH_LO_MASK) | 27873c6e15bcSPyun YongHyeon ((rxf_hi << RX_FIFO_PAUSE_THRESH_HI_SHIFT) & 27883c6e15bcSPyun YongHyeon RX_FIFO_PAUSE_THRESH_HI_MASK)); 27893c6e15bcSPyun YongHyeon } 27903c6e15bcSPyun YongHyeon 27913c6e15bcSPyun YongHyeon /* Disable RSS. */ 27923c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RSS_IDT_TABLE0, 0); 27933c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RSS_CPU, 0); 27943c6e15bcSPyun YongHyeon 27953c6e15bcSPyun YongHyeon /* Configure RxQ. */ 27963c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXQ_CFG, 27973c6e15bcSPyun YongHyeon RXQ_CFG_ALIGN_32 | RXQ_CFG_CUT_THROUGH_ENB | RXQ_CFG_ENB); 27983c6e15bcSPyun YongHyeon 27993c6e15bcSPyun YongHyeon /* Configure DMA parameters. */ 28003c6e15bcSPyun YongHyeon reg = 0; 28013c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_TXCMB_BUG) == 0) 28023c6e15bcSPyun YongHyeon reg |= DMA_CFG_TXCMB_ENB; 28033c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_DMA_CFG, 28043c6e15bcSPyun YongHyeon DMA_CFG_OUT_ORDER | DMA_CFG_RD_REQ_PRI | DMA_CFG_RCB_64 | 28053c6e15bcSPyun YongHyeon sc->ale_dma_rd_burst | reg | 28063c6e15bcSPyun YongHyeon sc->ale_dma_wr_burst | DMA_CFG_RXCMB_ENB | 28073c6e15bcSPyun YongHyeon ((DMA_CFG_RD_DELAY_CNT_DEFAULT << DMA_CFG_RD_DELAY_CNT_SHIFT) & 28083c6e15bcSPyun YongHyeon DMA_CFG_RD_DELAY_CNT_MASK) | 28093c6e15bcSPyun YongHyeon ((DMA_CFG_WR_DELAY_CNT_DEFAULT << DMA_CFG_WR_DELAY_CNT_SHIFT) & 28103c6e15bcSPyun YongHyeon DMA_CFG_WR_DELAY_CNT_MASK)); 28113c6e15bcSPyun YongHyeon 28123c6e15bcSPyun YongHyeon /* 28133c6e15bcSPyun YongHyeon * Hardware can be configured to issue SMB interrupt based 28143c6e15bcSPyun YongHyeon * on programmed interval. Since there is a callout that is 28153c6e15bcSPyun YongHyeon * invoked for every hz in driver we use that instead of 28163c6e15bcSPyun YongHyeon * relying on periodic SMB interrupt. 28173c6e15bcSPyun YongHyeon */ 28183c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_SMB_STAT_TIMER, ALE_USECS(0)); 28193c6e15bcSPyun YongHyeon /* Clear MAC statistics. */ 28203c6e15bcSPyun YongHyeon ale_stats_clear(sc); 28213c6e15bcSPyun YongHyeon 28223c6e15bcSPyun YongHyeon /* 28233c6e15bcSPyun YongHyeon * Configure Tx/Rx MACs. 28243c6e15bcSPyun YongHyeon * - Auto-padding for short frames. 28253c6e15bcSPyun YongHyeon * - Enable CRC generation. 28263c6e15bcSPyun YongHyeon * Actual reconfiguration of MAC for resolved speed/duplex 28273c6e15bcSPyun YongHyeon * is followed after detection of link establishment. 28283c6e15bcSPyun YongHyeon * AR81xx always does checksum computation regardless of 28293c6e15bcSPyun YongHyeon * MAC_CFG_RXCSUM_ENB bit. In fact, setting the bit will 28303c6e15bcSPyun YongHyeon * cause Rx handling issue for fragmented IP datagrams due 28313c6e15bcSPyun YongHyeon * to silicon bug. 28323c6e15bcSPyun YongHyeon */ 28333c6e15bcSPyun YongHyeon reg = MAC_CFG_TX_CRC_ENB | MAC_CFG_TX_AUTO_PAD | MAC_CFG_FULL_DUPLEX | 28343c6e15bcSPyun YongHyeon ((MAC_CFG_PREAMBLE_DEFAULT << MAC_CFG_PREAMBLE_SHIFT) & 28353c6e15bcSPyun YongHyeon MAC_CFG_PREAMBLE_MASK); 28363c6e15bcSPyun YongHyeon if ((sc->ale_flags & ALE_FLAG_FASTETHER) != 0) 28373c6e15bcSPyun YongHyeon reg |= MAC_CFG_SPEED_10_100; 28383c6e15bcSPyun YongHyeon else 28393c6e15bcSPyun YongHyeon reg |= MAC_CFG_SPEED_1000; 28403c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 28413c6e15bcSPyun YongHyeon 28423c6e15bcSPyun YongHyeon /* Set up the receive filter. */ 28433c6e15bcSPyun YongHyeon ale_rxfilter(sc); 28443c6e15bcSPyun YongHyeon ale_rxvlan(sc); 28453c6e15bcSPyun YongHyeon 28463c6e15bcSPyun YongHyeon /* Acknowledge all pending interrupts and clear it. */ 28473c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_MASK, ALE_INTRS); 28483c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, 0xFFFFFFFF); 28493c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, 0); 28503c6e15bcSPyun YongHyeon 28512b6f7122SPyun YongHyeon ifp->if_drv_flags |= IFF_DRV_RUNNING; 28522b6f7122SPyun YongHyeon ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 28532b6f7122SPyun YongHyeon 28543c6e15bcSPyun YongHyeon sc->ale_flags &= ~ALE_FLAG_LINK; 28553c6e15bcSPyun YongHyeon /* Switch to the current media. */ 28563c6e15bcSPyun YongHyeon mii_mediachg(mii); 28573c6e15bcSPyun YongHyeon 28583c6e15bcSPyun YongHyeon callout_reset(&sc->ale_tick_ch, hz, ale_tick, sc); 28593c6e15bcSPyun YongHyeon } 28603c6e15bcSPyun YongHyeon 28613c6e15bcSPyun YongHyeon static void 28623c6e15bcSPyun YongHyeon ale_stop(struct ale_softc *sc) 28633c6e15bcSPyun YongHyeon { 28643c6e15bcSPyun YongHyeon struct ifnet *ifp; 28653c6e15bcSPyun YongHyeon struct ale_txdesc *txd; 28663c6e15bcSPyun YongHyeon uint32_t reg; 28673c6e15bcSPyun YongHyeon int i; 28683c6e15bcSPyun YongHyeon 28693c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 28703c6e15bcSPyun YongHyeon /* 28713c6e15bcSPyun YongHyeon * Mark the interface down and cancel the watchdog timer. 28723c6e15bcSPyun YongHyeon */ 28733c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 28743c6e15bcSPyun YongHyeon ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 28753c6e15bcSPyun YongHyeon sc->ale_flags &= ~ALE_FLAG_LINK; 28763c6e15bcSPyun YongHyeon callout_stop(&sc->ale_tick_ch); 28773c6e15bcSPyun YongHyeon sc->ale_watchdog_timer = 0; 28783c6e15bcSPyun YongHyeon ale_stats_update(sc); 28793c6e15bcSPyun YongHyeon /* Disable interrupts. */ 28803c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_MASK, 0); 28813c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, 0xFFFFFFFF); 28823c6e15bcSPyun YongHyeon /* Disable queue processing and DMA. */ 28833c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_TXQ_CFG); 28843c6e15bcSPyun YongHyeon reg &= ~TXQ_CFG_ENB; 28853c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_TXQ_CFG, reg); 28863c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_RXQ_CFG); 28873c6e15bcSPyun YongHyeon reg &= ~RXQ_CFG_ENB; 28883c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_RXQ_CFG, reg); 28893c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_DMA_CFG); 28903c6e15bcSPyun YongHyeon reg &= ~(DMA_CFG_TXCMB_ENB | DMA_CFG_RXCMB_ENB); 28913c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_DMA_CFG, reg); 28923c6e15bcSPyun YongHyeon DELAY(1000); 28933c6e15bcSPyun YongHyeon /* Stop Rx/Tx MACs. */ 28943c6e15bcSPyun YongHyeon ale_stop_mac(sc); 28953c6e15bcSPyun YongHyeon /* Disable interrupts which might be touched in taskq handler. */ 28963c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_INTR_STATUS, 0xFFFFFFFF); 28973c6e15bcSPyun YongHyeon 28983c6e15bcSPyun YongHyeon /* 28993c6e15bcSPyun YongHyeon * Free TX mbufs still in the queues. 29003c6e15bcSPyun YongHyeon */ 29013c6e15bcSPyun YongHyeon for (i = 0; i < ALE_TX_RING_CNT; i++) { 29023c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[i]; 29033c6e15bcSPyun YongHyeon if (txd->tx_m != NULL) { 29043c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_tag, 29053c6e15bcSPyun YongHyeon txd->tx_dmamap, BUS_DMASYNC_POSTWRITE); 29063c6e15bcSPyun YongHyeon bus_dmamap_unload(sc->ale_cdata.ale_tx_tag, 29073c6e15bcSPyun YongHyeon txd->tx_dmamap); 29083c6e15bcSPyun YongHyeon m_freem(txd->tx_m); 29093c6e15bcSPyun YongHyeon txd->tx_m = NULL; 29103c6e15bcSPyun YongHyeon } 29113c6e15bcSPyun YongHyeon } 29123c6e15bcSPyun YongHyeon } 29133c6e15bcSPyun YongHyeon 29143c6e15bcSPyun YongHyeon static void 29153c6e15bcSPyun YongHyeon ale_stop_mac(struct ale_softc *sc) 29163c6e15bcSPyun YongHyeon { 29173c6e15bcSPyun YongHyeon uint32_t reg; 29183c6e15bcSPyun YongHyeon int i; 29193c6e15bcSPyun YongHyeon 29203c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 29213c6e15bcSPyun YongHyeon 29223c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_MAC_CFG); 29233c6e15bcSPyun YongHyeon if ((reg & (MAC_CFG_TX_ENB | MAC_CFG_RX_ENB)) != 0) { 29249f988ef1SPyun YongHyeon reg &= ~(MAC_CFG_TX_ENB | MAC_CFG_RX_ENB); 29253c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 29263c6e15bcSPyun YongHyeon } 29273c6e15bcSPyun YongHyeon 29283c6e15bcSPyun YongHyeon for (i = ALE_TIMEOUT; i > 0; i--) { 29293c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_IDLE_STATUS); 29303c6e15bcSPyun YongHyeon if (reg == 0) 29313c6e15bcSPyun YongHyeon break; 29323c6e15bcSPyun YongHyeon DELAY(10); 29333c6e15bcSPyun YongHyeon } 29343c6e15bcSPyun YongHyeon if (i == 0) 29353c6e15bcSPyun YongHyeon device_printf(sc->ale_dev, 29363c6e15bcSPyun YongHyeon "could not disable Tx/Rx MAC(0x%08x)!\n", reg); 29373c6e15bcSPyun YongHyeon } 29383c6e15bcSPyun YongHyeon 29393c6e15bcSPyun YongHyeon static void 29403c6e15bcSPyun YongHyeon ale_init_tx_ring(struct ale_softc *sc) 29413c6e15bcSPyun YongHyeon { 29423c6e15bcSPyun YongHyeon struct ale_txdesc *txd; 29433c6e15bcSPyun YongHyeon int i; 29443c6e15bcSPyun YongHyeon 29453c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 29463c6e15bcSPyun YongHyeon 29473c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_prod = 0; 29483c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cons = 0; 29493c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cnt = 0; 29503c6e15bcSPyun YongHyeon 29513c6e15bcSPyun YongHyeon bzero(sc->ale_cdata.ale_tx_ring, ALE_TX_RING_SZ); 29523c6e15bcSPyun YongHyeon bzero(sc->ale_cdata.ale_tx_cmb, ALE_TX_CMB_SZ); 29533c6e15bcSPyun YongHyeon for (i = 0; i < ALE_TX_RING_CNT; i++) { 29543c6e15bcSPyun YongHyeon txd = &sc->ale_cdata.ale_txdesc[i]; 29553c6e15bcSPyun YongHyeon txd->tx_m = NULL; 29563c6e15bcSPyun YongHyeon } 29573c6e15bcSPyun YongHyeon *sc->ale_cdata.ale_tx_cmb = 0; 29583c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_cmb_tag, 29593c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_cmb_map, 29603c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 29613c6e15bcSPyun YongHyeon bus_dmamap_sync(sc->ale_cdata.ale_tx_ring_tag, 29623c6e15bcSPyun YongHyeon sc->ale_cdata.ale_tx_ring_map, 29633c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 29643c6e15bcSPyun YongHyeon } 29653c6e15bcSPyun YongHyeon 29663c6e15bcSPyun YongHyeon static void 29673c6e15bcSPyun YongHyeon ale_init_rx_pages(struct ale_softc *sc) 29683c6e15bcSPyun YongHyeon { 29693c6e15bcSPyun YongHyeon struct ale_rx_page *rx_page; 29703c6e15bcSPyun YongHyeon int i; 29713c6e15bcSPyun YongHyeon 29723c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 29733c6e15bcSPyun YongHyeon 2974e23559dbSPyun YongHyeon sc->ale_morework = 0; 29753c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_seqno = 0; 29763c6e15bcSPyun YongHyeon sc->ale_cdata.ale_rx_curp = 0; 29773c6e15bcSPyun YongHyeon 29783c6e15bcSPyun YongHyeon for (i = 0; i < ALE_RX_PAGES; i++) { 29793c6e15bcSPyun YongHyeon rx_page = &sc->ale_cdata.ale_rx_page[i]; 29803c6e15bcSPyun YongHyeon bzero(rx_page->page_addr, sc->ale_pagesize); 29813c6e15bcSPyun YongHyeon bzero(rx_page->cmb_addr, ALE_RX_CMB_SZ); 29823c6e15bcSPyun YongHyeon rx_page->cons = 0; 29833c6e15bcSPyun YongHyeon *rx_page->cmb_addr = 0; 29843c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->page_tag, rx_page->page_map, 29853c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 29863c6e15bcSPyun YongHyeon bus_dmamap_sync(rx_page->cmb_tag, rx_page->cmb_map, 29873c6e15bcSPyun YongHyeon BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 29883c6e15bcSPyun YongHyeon } 29893c6e15bcSPyun YongHyeon } 29903c6e15bcSPyun YongHyeon 29913c6e15bcSPyun YongHyeon static void 29923c6e15bcSPyun YongHyeon ale_rxvlan(struct ale_softc *sc) 29933c6e15bcSPyun YongHyeon { 29943c6e15bcSPyun YongHyeon struct ifnet *ifp; 29953c6e15bcSPyun YongHyeon uint32_t reg; 29963c6e15bcSPyun YongHyeon 29973c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 29983c6e15bcSPyun YongHyeon 29993c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 30003c6e15bcSPyun YongHyeon reg = CSR_READ_4(sc, ALE_MAC_CFG); 30013c6e15bcSPyun YongHyeon reg &= ~MAC_CFG_VLAN_TAG_STRIP; 30023c6e15bcSPyun YongHyeon if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) 30033c6e15bcSPyun YongHyeon reg |= MAC_CFG_VLAN_TAG_STRIP; 30043c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, reg); 30053c6e15bcSPyun YongHyeon } 30063c6e15bcSPyun YongHyeon 30073c6e15bcSPyun YongHyeon static void 30083c6e15bcSPyun YongHyeon ale_rxfilter(struct ale_softc *sc) 30093c6e15bcSPyun YongHyeon { 30103c6e15bcSPyun YongHyeon struct ifnet *ifp; 30113c6e15bcSPyun YongHyeon struct ifmultiaddr *ifma; 30123c6e15bcSPyun YongHyeon uint32_t crc; 30133c6e15bcSPyun YongHyeon uint32_t mchash[2]; 30143c6e15bcSPyun YongHyeon uint32_t rxcfg; 30153c6e15bcSPyun YongHyeon 30163c6e15bcSPyun YongHyeon ALE_LOCK_ASSERT(sc); 30173c6e15bcSPyun YongHyeon 30183c6e15bcSPyun YongHyeon ifp = sc->ale_ifp; 30193c6e15bcSPyun YongHyeon 30203c6e15bcSPyun YongHyeon rxcfg = CSR_READ_4(sc, ALE_MAC_CFG); 30213c6e15bcSPyun YongHyeon rxcfg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST | MAC_CFG_PROMISC); 30223c6e15bcSPyun YongHyeon if ((ifp->if_flags & IFF_BROADCAST) != 0) 30233c6e15bcSPyun YongHyeon rxcfg |= MAC_CFG_BCAST; 30243c6e15bcSPyun YongHyeon if ((ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0) { 30253c6e15bcSPyun YongHyeon if ((ifp->if_flags & IFF_PROMISC) != 0) 30263c6e15bcSPyun YongHyeon rxcfg |= MAC_CFG_PROMISC; 30273c6e15bcSPyun YongHyeon if ((ifp->if_flags & IFF_ALLMULTI) != 0) 30283c6e15bcSPyun YongHyeon rxcfg |= MAC_CFG_ALLMULTI; 30293c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAR0, 0xFFFFFFFF); 30303c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAR1, 0xFFFFFFFF); 30313c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, rxcfg); 30323c6e15bcSPyun YongHyeon return; 30333c6e15bcSPyun YongHyeon } 30343c6e15bcSPyun YongHyeon 30353c6e15bcSPyun YongHyeon /* Program new filter. */ 30363c6e15bcSPyun YongHyeon bzero(mchash, sizeof(mchash)); 30373c6e15bcSPyun YongHyeon 3038eb956cd0SRobert Watson if_maddr_rlock(ifp); 30393c6e15bcSPyun YongHyeon TAILQ_FOREACH(ifma, &sc->ale_ifp->if_multiaddrs, ifma_link) { 30403c6e15bcSPyun YongHyeon if (ifma->ifma_addr->sa_family != AF_LINK) 30413c6e15bcSPyun YongHyeon continue; 3042cb2cdeceSPyun YongHyeon crc = ether_crc32_be(LLADDR((struct sockaddr_dl *) 30433c6e15bcSPyun YongHyeon ifma->ifma_addr), ETHER_ADDR_LEN); 30443c6e15bcSPyun YongHyeon mchash[crc >> 31] |= 1 << ((crc >> 26) & 0x1f); 30453c6e15bcSPyun YongHyeon } 3046eb956cd0SRobert Watson if_maddr_runlock(ifp); 30473c6e15bcSPyun YongHyeon 30483c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAR0, mchash[0]); 30493c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAR1, mchash[1]); 30503c6e15bcSPyun YongHyeon CSR_WRITE_4(sc, ALE_MAC_CFG, rxcfg); 30513c6e15bcSPyun YongHyeon } 30523c6e15bcSPyun YongHyeon 30533c6e15bcSPyun YongHyeon static int 30543c6e15bcSPyun YongHyeon sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high) 30553c6e15bcSPyun YongHyeon { 30563c6e15bcSPyun YongHyeon int error, value; 30573c6e15bcSPyun YongHyeon 30583c6e15bcSPyun YongHyeon if (arg1 == NULL) 30593c6e15bcSPyun YongHyeon return (EINVAL); 30603c6e15bcSPyun YongHyeon value = *(int *)arg1; 30613c6e15bcSPyun YongHyeon error = sysctl_handle_int(oidp, &value, 0, req); 30623c6e15bcSPyun YongHyeon if (error || req->newptr == NULL) 30633c6e15bcSPyun YongHyeon return (error); 30643c6e15bcSPyun YongHyeon if (value < low || value > high) 30653c6e15bcSPyun YongHyeon return (EINVAL); 30663c6e15bcSPyun YongHyeon *(int *)arg1 = value; 30673c6e15bcSPyun YongHyeon 30683c6e15bcSPyun YongHyeon return (0); 30693c6e15bcSPyun YongHyeon } 30703c6e15bcSPyun YongHyeon 30713c6e15bcSPyun YongHyeon static int 30723c6e15bcSPyun YongHyeon sysctl_hw_ale_proc_limit(SYSCTL_HANDLER_ARGS) 30733c6e15bcSPyun YongHyeon { 30743c6e15bcSPyun YongHyeon return (sysctl_int_range(oidp, arg1, arg2, req, 30753c6e15bcSPyun YongHyeon ALE_PROC_MIN, ALE_PROC_MAX)); 30763c6e15bcSPyun YongHyeon } 30773c6e15bcSPyun YongHyeon 30783c6e15bcSPyun YongHyeon static int 30793c6e15bcSPyun YongHyeon sysctl_hw_ale_int_mod(SYSCTL_HANDLER_ARGS) 30803c6e15bcSPyun YongHyeon { 30813c6e15bcSPyun YongHyeon 30823c6e15bcSPyun YongHyeon return (sysctl_int_range(oidp, arg1, arg2, req, 30833c6e15bcSPyun YongHyeon ALE_IM_TIMER_MIN, ALE_IM_TIMER_MAX)); 30843c6e15bcSPyun YongHyeon } 3085