if_xl.c (3b8f08459569bf0faa21473e5cec2491e95c9349) if_xl.c (ec4a89771940a2fc38cbfbbe97b0f8bc59893ff6)
1/*-
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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1861
1862 /*
1863 * If an error occurs, update stats, clear the
1864 * status word and leave the mbuf cluster in place:
1865 * it should simply get re-used next time this descriptor
1866 * comes up in the ring.
1867 */
1868 if (rxstat & XL_RXSTAT_UP_ERROR) {
1/*-
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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1861
1862 /*
1863 * If an error occurs, update stats, clear the
1864 * status word and leave the mbuf cluster in place:
1865 * it should simply get re-used next time this descriptor
1866 * comes up in the ring.
1867 */
1868 if (rxstat & XL_RXSTAT_UP_ERROR) {
1869 ifp->if_ierrors++;
1869 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1870 cur_rx->xl_ptr->xl_status = 0;
1871 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1872 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1873 continue;
1874 }
1875
1876 /*
1877 * If the error bit was not set, the upload complete
1878 * bit should be set which means we have a valid packet.
1879 * If not, something truly strange has happened.
1880 */
1881 if (!(rxstat & XL_RXSTAT_UP_CMPLT)) {
1882 device_printf(sc->xl_dev,
1883 "bad receive status -- packet dropped\n");
1870 cur_rx->xl_ptr->xl_status = 0;
1871 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1872 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1873 continue;
1874 }
1875
1876 /*
1877 * If the error bit was not set, the upload complete
1878 * bit should be set which means we have a valid packet.
1879 * If not, something truly strange has happened.
1880 */
1881 if (!(rxstat & XL_RXSTAT_UP_CMPLT)) {
1882 device_printf(sc->xl_dev,
1883 "bad receive status -- packet dropped\n");
1884 ifp->if_ierrors++;
1884 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1885 cur_rx->xl_ptr->xl_status = 0;
1886 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1887 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1888 continue;
1889 }
1890
1891 /* No errors; receive the packet. */
1892 bus_dmamap_sync(sc->xl_mtag, cur_rx->xl_map,
1893 BUS_DMASYNC_POSTREAD);
1894 m = cur_rx->xl_mbuf;
1895
1896 /*
1897 * Try to conjure up a new mbuf cluster. If that
1898 * fails, it means we have an out of memory condition and
1899 * should leave the buffer in place and continue. This will
1900 * result in a lost packet, but there's little else we
1901 * can do in this situation.
1902 */
1903 if (xl_newbuf(sc, cur_rx)) {
1885 cur_rx->xl_ptr->xl_status = 0;
1886 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1887 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1888 continue;
1889 }
1890
1891 /* No errors; receive the packet. */
1892 bus_dmamap_sync(sc->xl_mtag, cur_rx->xl_map,
1893 BUS_DMASYNC_POSTREAD);
1894 m = cur_rx->xl_mbuf;
1895
1896 /*
1897 * Try to conjure up a new mbuf cluster. If that
1898 * fails, it means we have an out of memory condition and
1899 * should leave the buffer in place and continue. This will
1900 * result in a lost packet, but there's little else we
1901 * can do in this situation.
1902 */
1903 if (xl_newbuf(sc, cur_rx)) {
1904 ifp->if_ierrors++;
1904 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1905 cur_rx->xl_ptr->xl_status = 0;
1906 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1907 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1908 continue;
1909 }
1910 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1911 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1912
1905 cur_rx->xl_ptr->xl_status = 0;
1906 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1907 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1908 continue;
1909 }
1910 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
1911 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1912
1913 ifp->if_ipackets++;
1913 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
1914 m->m_pkthdr.rcvif = ifp;
1915 m->m_pkthdr.len = m->m_len = total_len;
1916
1917 if (ifp->if_capenable & IFCAP_RXCSUM) {
1918 /* Do IP checksum checking. */
1919 if (rxstat & XL_RXSTAT_IPCKOK)
1920 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
1921 if (!(rxstat & XL_RXSTAT_IPCKERR))

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2009 break;
2010
2011 sc->xl_cdata.xl_tx_head = cur_tx->xl_next;
2012 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2013 BUS_DMASYNC_POSTWRITE);
2014 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2015 m_freem(cur_tx->xl_mbuf);
2016 cur_tx->xl_mbuf = NULL;
1914 m->m_pkthdr.rcvif = ifp;
1915 m->m_pkthdr.len = m->m_len = total_len;
1916
1917 if (ifp->if_capenable & IFCAP_RXCSUM) {
1918 /* Do IP checksum checking. */
1919 if (rxstat & XL_RXSTAT_IPCKOK)
1920 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
1921 if (!(rxstat & XL_RXSTAT_IPCKERR))

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2009 break;
2010
2011 sc->xl_cdata.xl_tx_head = cur_tx->xl_next;
2012 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2013 BUS_DMASYNC_POSTWRITE);
2014 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2015 m_freem(cur_tx->xl_mbuf);
2016 cur_tx->xl_mbuf = NULL;
2017 ifp->if_opackets++;
2017 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
2018 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2019
2020 cur_tx->xl_next = sc->xl_cdata.xl_tx_free;
2021 sc->xl_cdata.xl_tx_free = cur_tx;
2022 }
2023
2024 if (sc->xl_cdata.xl_tx_head == NULL) {
2025 sc->xl_wdog_timer = 0;

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2056 if (cur_tx->xl_mbuf != NULL) {
2057 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2058 BUS_DMASYNC_POSTWRITE);
2059 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2060 m_freem(cur_tx->xl_mbuf);
2061 cur_tx->xl_mbuf = NULL;
2062 }
2063
2018 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2019
2020 cur_tx->xl_next = sc->xl_cdata.xl_tx_free;
2021 sc->xl_cdata.xl_tx_free = cur_tx;
2022 }
2023
2024 if (sc->xl_cdata.xl_tx_head == NULL) {
2025 sc->xl_wdog_timer = 0;

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2056 if (cur_tx->xl_mbuf != NULL) {
2057 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2058 BUS_DMASYNC_POSTWRITE);
2059 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2060 m_freem(cur_tx->xl_mbuf);
2061 cur_tx->xl_mbuf = NULL;
2062 }
2063
2064 ifp->if_opackets++;
2064 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
2065
2066 sc->xl_cdata.xl_tx_cnt--;
2067 XL_INC(idx, XL_TX_LIST_CNT);
2068 }
2069
2070 if (sc->xl_cdata.xl_tx_cnt == 0)
2071 sc->xl_wdog_timer = 0;
2072 sc->xl_cdata.xl_tx_cons = idx;

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2180 if (status & XL_STAT_DOWN_COMPLETE) {
2181 if (sc->xl_type == XL_TYPE_905B)
2182 xl_txeof_90xB(sc);
2183 else
2184 xl_txeof(sc);
2185 }
2186
2187 if (status & XL_STAT_TX_COMPLETE) {
2065
2066 sc->xl_cdata.xl_tx_cnt--;
2067 XL_INC(idx, XL_TX_LIST_CNT);
2068 }
2069
2070 if (sc->xl_cdata.xl_tx_cnt == 0)
2071 sc->xl_wdog_timer = 0;
2072 sc->xl_cdata.xl_tx_cons = idx;

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2180 if (status & XL_STAT_DOWN_COMPLETE) {
2181 if (sc->xl_type == XL_TYPE_905B)
2182 xl_txeof_90xB(sc);
2183 else
2184 xl_txeof(sc);
2185 }
2186
2187 if (status & XL_STAT_TX_COMPLETE) {
2188 ifp->if_oerrors++;
2188 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2189 xl_txeoc(sc);
2190 }
2191
2192 if (status & XL_STAT_ADFAIL) {
2193 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2194 xl_init_locked(sc);
2195 break;
2196 }

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2250 u_int16_t status;
2251
2252 status = CSR_READ_2(sc, XL_STATUS);
2253 if (status & XL_INTRS && status != 0xFFFF) {
2254 CSR_WRITE_2(sc, XL_COMMAND,
2255 XL_CMD_INTR_ACK|(status & XL_INTRS));
2256
2257 if (status & XL_STAT_TX_COMPLETE) {
2189 xl_txeoc(sc);
2190 }
2191
2192 if (status & XL_STAT_ADFAIL) {
2193 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2194 xl_init_locked(sc);
2195 break;
2196 }

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2250 u_int16_t status;
2251
2252 status = CSR_READ_2(sc, XL_STATUS);
2253 if (status & XL_INTRS && status != 0xFFFF) {
2254 CSR_WRITE_2(sc, XL_COMMAND,
2255 XL_CMD_INTR_ACK|(status & XL_INTRS));
2256
2257 if (status & XL_STAT_TX_COMPLETE) {
2258 ifp->if_oerrors++;
2258 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2259 xl_txeoc(sc);
2260 }
2261
2262 if (status & XL_STAT_ADFAIL) {
2263 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2264 xl_init_locked(sc);
2265 }
2266

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2307 p = (u_int8_t *)&xl_stats;
2308
2309 /* Read all the stats registers. */
2310 XL_SEL_WIN(6);
2311
2312 for (i = 0; i < 16; i++)
2313 *p++ = CSR_READ_1(sc, XL_W6_CARRIER_LOST + i);
2314
2259 xl_txeoc(sc);
2260 }
2261
2262 if (status & XL_STAT_ADFAIL) {
2263 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2264 xl_init_locked(sc);
2265 }
2266

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2307 p = (u_int8_t *)&xl_stats;
2308
2309 /* Read all the stats registers. */
2310 XL_SEL_WIN(6);
2311
2312 for (i = 0; i < 16; i++)
2313 *p++ = CSR_READ_1(sc, XL_W6_CARRIER_LOST + i);
2314
2315 ifp->if_ierrors += xl_stats.xl_rx_overrun;
2315 if_inc_counter(ifp, IFCOUNTER_IERRORS, xl_stats.xl_rx_overrun);
2316
2316
2317 ifp->if_collisions += xl_stats.xl_tx_multi_collision +
2318 xl_stats.xl_tx_single_collision + xl_stats.xl_tx_late_collision;
2317 if_inc_counter(ifp, IFCOUNTER_COLLISIONS,
2318 xl_stats.xl_tx_multi_collision +
2319 xl_stats.xl_tx_single_collision +
2320 xl_stats.xl_tx_late_collision);
2319
2320 /*
2321 * Boomerang and cyclone chips have an extra stats counter
2322 * in window 4 (BadSSD). We have to read this too in order
2323 * to clear out all the stats registers and avoid a statsoflow
2324 * interrupt.
2325 */
2326 XL_SEL_WIN(4);

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3116 misintr++;
3117 }
3118 if (misintr != 0) {
3119 device_printf(sc->xl_dev,
3120 "watchdog timeout (missed Tx interrupts) -- recovering\n");
3121 return (0);
3122 }
3123
2321
2322 /*
2323 * Boomerang and cyclone chips have an extra stats counter
2324 * in window 4 (BadSSD). We have to read this too in order
2325 * to clear out all the stats registers and avoid a statsoflow
2326 * interrupt.
2327 */
2328 XL_SEL_WIN(4);

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3118 misintr++;
3119 }
3120 if (misintr != 0) {
3121 device_printf(sc->xl_dev,
3122 "watchdog timeout (missed Tx interrupts) -- recovering\n");
3123 return (0);
3124 }
3125
3124 ifp->if_oerrors++;
3126 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
3125 XL_SEL_WIN(4);
3126 status = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
3127 device_printf(sc->xl_dev, "watchdog timeout\n");
3128
3129 if (status & XL_MEDIASTAT_CARRIER)
3130 device_printf(sc->xl_dev,
3131 "no carrier - transceiver cable problem?\n");
3132

--- 163 unchanged lines hidden --- 		3127 XL_SEL_WIN(4);
3128 status = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
3129 device_printf(sc->xl_dev, "watchdog timeout\n");
3130
3131 if (status & XL_MEDIASTAT_CARRIER)
3132 device_printf(sc->xl_dev,
3133 "no carrier - transceiver cable problem?\n");
3134

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