/*- * Copyright (c) 2001 Wind River Systems * Copyright (c) 1997, 1998, 1999, 2001 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); /* * Broadcom BCM570x family gigabit ethernet driver for FreeBSD. * * The Broadcom BCM5700 is based on technology originally developed by * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has * two on-board MIPS R4000 CPUs and can have as much as 16MB of external * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo * frames, highly configurable RX filtering, and 16 RX and TX queues * (which, along with RX filter rules, can be used for QOS applications). * Other features, such as TCP segmentation, may be available as part * of value-added firmware updates. Unlike the Tigon I and Tigon II, * firmware images can be stored in hardware and need not be compiled * into the driver. * * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus. * * The BCM5701 is a single-chip solution incorporating both the BCM5700 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701 * does not support external SSRAM. * * Broadcom also produces a variation of the BCM5700 under the "Altima" * brand name, which is functionally similar but lacks PCI-X support. * * Without external SSRAM, you can only have at most 4 TX rings, * and the use of the mini RX ring is disabled. This seems to imply * that these features are simply not available on the BCM5701. As a * result, this driver does not implement any support for the mini RX * ring. */ #ifdef HAVE_KERNEL_OPTION_HEADERS #include "opt_device_polling.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include #include #include #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) #define ETHER_MIN_NOPAD (ETHER_MIN_LEN - ETHER_CRC_LEN) /* i.e., 60 */ MODULE_DEPEND(bge, pci, 1, 1, 1); MODULE_DEPEND(bge, ether, 1, 1, 1); MODULE_DEPEND(bge, miibus, 1, 1, 1); /* "device miibus" required. See GENERIC if you get errors here. */ #include "miibus_if.h" /* * Various supported device vendors/types and their names. Note: the * spec seems to indicate that the hardware still has Alteon's vendor * ID burned into it, though it will always be overriden by the vendor * ID in the EEPROM. Just to be safe, we cover all possibilities. */ static struct bge_type { uint16_t bge_vid; uint16_t bge_did; } bge_devs[] = { { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5700 }, { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5701 }, { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1000 }, { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1002 }, { ALTIMA_VENDORID, ALTIMA_DEVICE_AC9100 }, { APPLE_VENDORID, APPLE_DEVICE_BCM5701 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5700 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5701 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5702 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5702_ALT }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5702X }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5703 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5703_ALT }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5703X }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5704C }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S_ALT }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5705 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5705F }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5705K }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M_ALT }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5714C }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5714S }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5715 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5715S }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5720 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5721 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5750 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5750M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5751 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5751F }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5751M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5752 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5752M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5753 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5753F }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5753M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5754 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5754M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5755 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5755M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5780 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5780S }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5781 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5782 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5786 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5787 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5787M }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5788 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5789 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5901 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5901A2 }, { BCOM_VENDORID, BCOM_DEVICEID_BCM5903M }, { SK_VENDORID, SK_DEVICEID_ALTIMA }, { TC_VENDORID, TC_DEVICEID_3C996 }, { 0, 0 } }; static const struct bge_vendor { uint16_t v_id; const char *v_name; } bge_vendors[] = { { ALTEON_VENDORID, "Alteon" }, { ALTIMA_VENDORID, "Altima" }, { APPLE_VENDORID, "Apple" }, { BCOM_VENDORID, "Broadcom" }, { SK_VENDORID, "SysKonnect" }, { TC_VENDORID, "3Com" }, { 0, NULL } }; static const struct bge_revision { uint32_t br_chipid; const char *br_name; } bge_revisions[] = { { BGE_CHIPID_BCM5700_A0, "BCM5700 A0" }, { BGE_CHIPID_BCM5700_A1, "BCM5700 A1" }, { BGE_CHIPID_BCM5700_B0, "BCM5700 B0" }, { BGE_CHIPID_BCM5700_B1, "BCM5700 B1" }, { BGE_CHIPID_BCM5700_B2, "BCM5700 B2" }, { BGE_CHIPID_BCM5700_B3, "BCM5700 B3" }, { BGE_CHIPID_BCM5700_ALTIMA, "BCM5700 Altima" }, { BGE_CHIPID_BCM5700_C0, "BCM5700 C0" }, { BGE_CHIPID_BCM5701_A0, "BCM5701 A0" }, { BGE_CHIPID_BCM5701_B0, "BCM5701 B0" }, { BGE_CHIPID_BCM5701_B2, "BCM5701 B2" }, { BGE_CHIPID_BCM5701_B5, "BCM5701 B5" }, { BGE_CHIPID_BCM5703_A0, "BCM5703 A0" }, { BGE_CHIPID_BCM5703_A1, "BCM5703 A1" }, { BGE_CHIPID_BCM5703_A2, "BCM5703 A2" }, { BGE_CHIPID_BCM5703_A3, "BCM5703 A3" }, { BGE_CHIPID_BCM5703_B0, "BCM5703 B0" }, { BGE_CHIPID_BCM5704_A0, "BCM5704 A0" }, { BGE_CHIPID_BCM5704_A1, "BCM5704 A1" }, { BGE_CHIPID_BCM5704_A2, "BCM5704 A2" }, { BGE_CHIPID_BCM5704_A3, "BCM5704 A3" }, { BGE_CHIPID_BCM5704_B0, "BCM5704 B0" }, { BGE_CHIPID_BCM5705_A0, "BCM5705 A0" }, { BGE_CHIPID_BCM5705_A1, "BCM5705 A1" }, { BGE_CHIPID_BCM5705_A2, "BCM5705 A2" }, { BGE_CHIPID_BCM5705_A3, "BCM5705 A3" }, { BGE_CHIPID_BCM5750_A0, "BCM5750 A0" }, { BGE_CHIPID_BCM5750_A1, "BCM5750 A1" }, { BGE_CHIPID_BCM5750_A3, "BCM5750 A3" }, { BGE_CHIPID_BCM5750_B0, "BCM5750 B0" }, { BGE_CHIPID_BCM5750_B1, "BCM5750 B1" }, { BGE_CHIPID_BCM5750_C0, "BCM5750 C0" }, { BGE_CHIPID_BCM5750_C1, "BCM5750 C1" }, { BGE_CHIPID_BCM5750_C2, "BCM5750 C2" }, { BGE_CHIPID_BCM5714_A0, "BCM5714 A0" }, { BGE_CHIPID_BCM5752_A0, "BCM5752 A0" }, { BGE_CHIPID_BCM5752_A1, "BCM5752 A1" }, { BGE_CHIPID_BCM5752_A2, "BCM5752 A2" }, { BGE_CHIPID_BCM5714_B0, "BCM5714 B0" }, { BGE_CHIPID_BCM5714_B3, "BCM5714 B3" }, { BGE_CHIPID_BCM5715_A0, "BCM5715 A0" }, { BGE_CHIPID_BCM5715_A1, "BCM5715 A1" }, /* 5784 and 5787 share the same ASIC ID */ { BGE_CHIPID_BCM5787_A0, "BCM5754/5787 A0" }, { BGE_CHIPID_BCM5787_A1, "BCM5754/5787 A1" }, { BGE_CHIPID_BCM5787_A2, "BCM5754/5787 A2" }, { 0, NULL } }; /* * Some defaults for major revisions, so that newer steppings * that we don't know about have a shot at working. */ static const struct bge_revision bge_majorrevs[] = { { BGE_ASICREV_BCM5700, "unknown BCM5700" }, { BGE_ASICREV_BCM5701, "unknown BCM5701" }, { BGE_ASICREV_BCM5703, "unknown BCM5703" }, { BGE_ASICREV_BCM5704, "unknown BCM5704" }, { BGE_ASICREV_BCM5705, "unknown BCM5705" }, { BGE_ASICREV_BCM5750, "unknown BCM5750" }, { BGE_ASICREV_BCM5714_A0, "unknown BCM5714" }, { BGE_ASICREV_BCM5752, "unknown BCM5752" }, { BGE_ASICREV_BCM5780, "unknown BCM5780" }, { BGE_ASICREV_BCM5714, "unknown BCM5714" }, { BGE_ASICREV_BCM5755, "unknown BCM5755" }, /* 5784 and 5787 share the same ASIC ID */ { BGE_ASICREV_BCM5787, "unknown BCM5754/5787" }, { 0, NULL } }; #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO) #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY) #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS) #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY) #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS) const struct bge_revision * bge_lookup_rev(uint32_t); const struct bge_vendor * bge_lookup_vendor(uint16_t); static int bge_probe(device_t); static int bge_attach(device_t); static int bge_detach(device_t); static int bge_suspend(device_t); static int bge_resume(device_t); static void bge_release_resources(struct bge_softc *); static void bge_dma_map_addr(void *, bus_dma_segment_t *, int, int); static int bge_dma_alloc(device_t); static void bge_dma_free(struct bge_softc *); static void bge_txeof(struct bge_softc *); static void bge_rxeof(struct bge_softc *); static void bge_asf_driver_up (struct bge_softc *); static void bge_tick(void *); static void bge_stats_update(struct bge_softc *); static void bge_stats_update_regs(struct bge_softc *); static int bge_encap(struct bge_softc *, struct mbuf **, uint32_t *); static void bge_intr(void *); static void bge_start_locked(struct ifnet *); static void bge_start(struct ifnet *); static int bge_ioctl(struct ifnet *, u_long, caddr_t); static void bge_init_locked(struct bge_softc *); static void bge_init(void *); static void bge_stop(struct bge_softc *); static void bge_watchdog(struct bge_softc *); static void bge_shutdown(device_t); static int bge_ifmedia_upd_locked(struct ifnet *); static int bge_ifmedia_upd(struct ifnet *); static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); static uint8_t bge_eeprom_getbyte(struct bge_softc *, int, uint8_t *); static int bge_read_eeprom(struct bge_softc *, caddr_t, int, int); static void bge_setpromisc(struct bge_softc *); static void bge_setmulti(struct bge_softc *); static int bge_newbuf_std(struct bge_softc *, int, struct mbuf *); static int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); static int bge_init_rx_ring_std(struct bge_softc *); static void bge_free_rx_ring_std(struct bge_softc *); static int bge_init_rx_ring_jumbo(struct bge_softc *); static void bge_free_rx_ring_jumbo(struct bge_softc *); static void bge_free_tx_ring(struct bge_softc *); static int bge_init_tx_ring(struct bge_softc *); static int bge_chipinit(struct bge_softc *); static int bge_blockinit(struct bge_softc *); static uint32_t bge_readmem_ind(struct bge_softc *, int); static void bge_writemem_ind(struct bge_softc *, int, int); #ifdef notdef static uint32_t bge_readreg_ind(struct bge_softc *, int); #endif static void bge_writereg_ind(struct bge_softc *, int, int); static void bge_writemem_direct(struct bge_softc *, int, int) __unused; static int bge_miibus_readreg(device_t, int, int); static int bge_miibus_writereg(device_t, int, int, int); static void bge_miibus_statchg(device_t); #ifdef DEVICE_POLLING static void bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count); #endif #define BGE_RESET_START 1 #define BGE_RESET_STOP 2 static void bge_sig_post_reset(struct bge_softc *, int); static void bge_sig_legacy(struct bge_softc *, int); static void bge_sig_pre_reset(struct bge_softc *, int); static int bge_reset(struct bge_softc *); static void bge_link_upd(struct bge_softc *); /* * The BGE_REGISTER_DEBUG option is only for low-level debugging. It may * leak information to untrusted users. It is also known to cause alignment * traps on certain architectures. */ #ifdef BGE_REGISTER_DEBUG static int bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS); static int bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS); static int bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS); #endif static void bge_add_sysctls(struct bge_softc *); static device_method_t bge_methods[] = { /* Device interface */ DEVMETHOD(device_probe, bge_probe), DEVMETHOD(device_attach, bge_attach), DEVMETHOD(device_detach, bge_detach), DEVMETHOD(device_shutdown, bge_shutdown), DEVMETHOD(device_suspend, bge_suspend), DEVMETHOD(device_resume, bge_resume), /* bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), /* MII interface */ DEVMETHOD(miibus_readreg, bge_miibus_readreg), DEVMETHOD(miibus_writereg, bge_miibus_writereg), DEVMETHOD(miibus_statchg, bge_miibus_statchg), { 0, 0 } }; static driver_t bge_driver = { "bge", bge_methods, sizeof(struct bge_softc) }; static devclass_t bge_devclass; DRIVER_MODULE(bge, pci, bge_driver, bge_devclass, 0, 0); DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, 0, 0); static int bge_fake_autoneg = 0; static int bge_allow_asf = 1; TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg); TUNABLE_INT("hw.bge.allow_asf", &bge_allow_asf); SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD, 0, "BGE driver parameters"); SYSCTL_INT(_hw_bge, OID_AUTO, fake_autoneg, CTLFLAG_RD, &bge_fake_autoneg, 0, "Enable fake autonegotiation for certain blade systems"); SYSCTL_INT(_hw_bge, OID_AUTO, allow_asf, CTLFLAG_RD, &bge_allow_asf, 0, "Allow ASF mode if available"); static uint32_t bge_readmem_ind(struct bge_softc *sc, int off) { device_t dev; uint32_t val; dev = sc->bge_dev; pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4); pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); return (val); } static void bge_writemem_ind(struct bge_softc *sc, int off, int val) { device_t dev; dev = sc->bge_dev; pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4); pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); } #ifdef notdef static uint32_t bge_readreg_ind(struct bge_softc *sc, int off) { device_t dev; dev = sc->bge_dev; pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); return (pci_read_config(dev, BGE_PCI_REG_DATA, 4)); } #endif static void bge_writereg_ind(struct bge_softc *sc, int off, int val) { device_t dev; dev = sc->bge_dev; pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); pci_write_config(dev, BGE_PCI_REG_DATA, val, 4); } static void bge_writemem_direct(struct bge_softc *sc, int off, int val) { CSR_WRITE_4(sc, off, val); } /* * Map a single buffer address. */ static void bge_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct bge_dmamap_arg *ctx; if (error) return; ctx = arg; if (nseg > ctx->bge_maxsegs) { ctx->bge_maxsegs = 0; return; } ctx->bge_busaddr = segs->ds_addr; } /* * Read a byte of data stored in the EEPROM at address 'addr.' The * BCM570x supports both the traditional bitbang interface and an * auto access interface for reading the EEPROM. We use the auto * access method. */ static uint8_t bge_eeprom_getbyte(struct bge_softc *sc, int addr, uint8_t *dest) { int i; uint32_t byte = 0; /* * Enable use of auto EEPROM access so we can avoid * having to use the bitbang method. */ BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); /* Reset the EEPROM, load the clock period. */ CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); DELAY(20); /* Issue the read EEPROM command. */ CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); /* Wait for completion */ for(i = 0; i < BGE_TIMEOUT * 10; i++) { DELAY(10); if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) break; } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "EEPROM read timed out\n"); return (1); } /* Get result. */ byte = CSR_READ_4(sc, BGE_EE_DATA); *dest = (byte >> ((addr % 4) * 8)) & 0xFF; return (0); } /* * Read a sequence of bytes from the EEPROM. */ static int bge_read_eeprom(struct bge_softc *sc, caddr_t dest, int off, int cnt) { int i, error = 0; uint8_t byte = 0; for (i = 0; i < cnt; i++) { error = bge_eeprom_getbyte(sc, off + i, &byte); if (error) break; *(dest + i) = byte; } return (error ? 1 : 0); } static int bge_miibus_readreg(device_t dev, int phy, int reg) { struct bge_softc *sc; uint32_t val, autopoll; int i; sc = device_get_softc(dev); /* * Broadcom's own driver always assumes the internal * PHY is at GMII address 1. On some chips, the PHY responds * to accesses at all addresses, which could cause us to * bogusly attach the PHY 32 times at probe type. Always * restricting the lookup to address 1 is simpler than * trying to figure out which chips revisions should be * special-cased. */ if (phy != 1) return (0); /* Reading with autopolling on may trigger PCI errors */ autopoll = CSR_READ_4(sc, BGE_MI_MODE); if (autopoll & BGE_MIMODE_AUTOPOLL) { BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); DELAY(40); } CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY| BGE_MIPHY(phy)|BGE_MIREG(reg)); for (i = 0; i < BGE_TIMEOUT; i++) { val = CSR_READ_4(sc, BGE_MI_COMM); if (!(val & BGE_MICOMM_BUSY)) break; } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "PHY read timed out\n"); val = 0; goto done; } val = CSR_READ_4(sc, BGE_MI_COMM); done: if (autopoll & BGE_MIMODE_AUTOPOLL) { BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); DELAY(40); } if (val & BGE_MICOMM_READFAIL) return (0); return (val & 0xFFFF); } static int bge_miibus_writereg(device_t dev, int phy, int reg, int val) { struct bge_softc *sc; uint32_t autopoll; int i; sc = device_get_softc(dev); /* Reading with autopolling on may trigger PCI errors */ autopoll = CSR_READ_4(sc, BGE_MI_MODE); if (autopoll & BGE_MIMODE_AUTOPOLL) { BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); DELAY(40); } CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY| BGE_MIPHY(phy)|BGE_MIREG(reg)|val); for (i = 0; i < BGE_TIMEOUT; i++) { if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) break; } if (autopoll & BGE_MIMODE_AUTOPOLL) { BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); DELAY(40); } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "PHY read timed out\n"); return (0); } return (0); } static void bge_miibus_statchg(device_t dev) { struct bge_softc *sc; struct mii_data *mii; sc = device_get_softc(dev); mii = device_get_softc(sc->bge_miibus); BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); else BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); else BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); } /* * Intialize a standard receive ring descriptor. */ static int bge_newbuf_std(struct bge_softc *sc, int i, struct mbuf *m) { struct mbuf *m_new = NULL; struct bge_rx_bd *r; struct bge_dmamap_arg ctx; int error; if (m == NULL) { m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); if (m_new == NULL) return (ENOBUFS); m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; } else { m_new = m; m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_new->m_data = m_new->m_ext.ext_buf; } if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) m_adj(m_new, ETHER_ALIGN); sc->bge_cdata.bge_rx_std_chain[i] = m_new; r = &sc->bge_ldata.bge_rx_std_ring[i]; ctx.bge_maxsegs = 1; ctx.sc = sc; error = bus_dmamap_load(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[i], mtod(m_new, void *), m_new->m_len, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error || ctx.bge_maxsegs == 0) { if (m == NULL) { sc->bge_cdata.bge_rx_std_chain[i] = NULL; m_freem(m_new); } return (ENOMEM); } r->bge_addr.bge_addr_lo = BGE_ADDR_LO(ctx.bge_busaddr); r->bge_addr.bge_addr_hi = BGE_ADDR_HI(ctx.bge_busaddr); r->bge_flags = BGE_RXBDFLAG_END; r->bge_len = m_new->m_len; r->bge_idx = i; bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[i], BUS_DMASYNC_PREREAD); return (0); } /* * Initialize a jumbo receive ring descriptor. This allocates * a jumbo buffer from the pool managed internally by the driver. */ static int bge_newbuf_jumbo(struct bge_softc *sc, int i, struct mbuf *m) { bus_dma_segment_t segs[BGE_NSEG_JUMBO]; struct bge_extrx_bd *r; struct mbuf *m_new = NULL; int nsegs; int error; if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) return (ENOBUFS); m_cljget(m_new, M_DONTWAIT, MJUM9BYTES); if (!(m_new->m_flags & M_EXT)) { m_freem(m_new); return (ENOBUFS); } m_new->m_len = m_new->m_pkthdr.len = MJUM9BYTES; } else { m_new = m; m_new->m_len = m_new->m_pkthdr.len = MJUM9BYTES; m_new->m_data = m_new->m_ext.ext_buf; } if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) m_adj(m_new, ETHER_ALIGN); error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[i], m_new, segs, &nsegs, BUS_DMA_NOWAIT); if (error) { if (m == NULL) m_freem(m_new); return (error); } sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; /* * Fill in the extended RX buffer descriptor. */ r = &sc->bge_ldata.bge_rx_jumbo_ring[i]; r->bge_flags = BGE_RXBDFLAG_JUMBO_RING|BGE_RXBDFLAG_END; r->bge_idx = i; r->bge_len3 = r->bge_len2 = r->bge_len1 = 0; switch (nsegs) { case 4: r->bge_addr3.bge_addr_lo = BGE_ADDR_LO(segs[3].ds_addr); r->bge_addr3.bge_addr_hi = BGE_ADDR_HI(segs[3].ds_addr); r->bge_len3 = segs[3].ds_len; case 3: r->bge_addr2.bge_addr_lo = BGE_ADDR_LO(segs[2].ds_addr); r->bge_addr2.bge_addr_hi = BGE_ADDR_HI(segs[2].ds_addr); r->bge_len2 = segs[2].ds_len; case 2: r->bge_addr1.bge_addr_lo = BGE_ADDR_LO(segs[1].ds_addr); r->bge_addr1.bge_addr_hi = BGE_ADDR_HI(segs[1].ds_addr); r->bge_len1 = segs[1].ds_len; case 1: r->bge_addr0.bge_addr_lo = BGE_ADDR_LO(segs[0].ds_addr); r->bge_addr0.bge_addr_hi = BGE_ADDR_HI(segs[0].ds_addr); r->bge_len0 = segs[0].ds_len; break; default: panic("%s: %d segments\n", __func__, nsegs); } bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_jumbo_dmamap[i], BUS_DMASYNC_PREREAD); return (0); } /* * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, * that's 1MB or memory, which is a lot. For now, we fill only the first * 256 ring entries and hope that our CPU is fast enough to keep up with * the NIC. */ static int bge_init_rx_ring_std(struct bge_softc *sc) { int i; for (i = 0; i < BGE_SSLOTS; i++) { if (bge_newbuf_std(sc, i, NULL) == ENOBUFS) return (ENOBUFS); }; bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); sc->bge_std = i - 1; CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); return (0); } static void bge_free_rx_ring_std(struct bge_softc *sc) { int i; for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[i], BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[i]); m_freem(sc->bge_cdata.bge_rx_std_chain[i]); sc->bge_cdata.bge_rx_std_chain[i] = NULL; } bzero((char *)&sc->bge_ldata.bge_rx_std_ring[i], sizeof(struct bge_rx_bd)); } } static int bge_init_rx_ring_jumbo(struct bge_softc *sc) { struct bge_rcb *rcb; int i; for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) return (ENOBUFS); }; bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); sc->bge_jumbo = i - 1; rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_USE_EXT_RX_BD); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); return (0); } static void bge_free_rx_ring_jumbo(struct bge_softc *sc) { int i; for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[i], BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[i]); m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; } bzero((char *)&sc->bge_ldata.bge_rx_jumbo_ring[i], sizeof(struct bge_extrx_bd)); } } static void bge_free_tx_ring(struct bge_softc *sc) { int i; if (sc->bge_ldata.bge_tx_ring == NULL) return; for (i = 0; i < BGE_TX_RING_CNT; i++) { if (sc->bge_cdata.bge_tx_chain[i] != NULL) { bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_tx_dmamap[i], BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_tx_dmamap[i]); m_freem(sc->bge_cdata.bge_tx_chain[i]); sc->bge_cdata.bge_tx_chain[i] = NULL; } bzero((char *)&sc->bge_ldata.bge_tx_ring[i], sizeof(struct bge_tx_bd)); } } static int bge_init_tx_ring(struct bge_softc *sc) { sc->bge_txcnt = 0; sc->bge_tx_saved_considx = 0; /* Initialize transmit producer index for host-memory send ring. */ sc->bge_tx_prodidx = 0; CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); /* 5700 b2 errata */ if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); /* NIC-memory send ring not used; initialize to zero. */ CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); /* 5700 b2 errata */ if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); return (0); } static void bge_setpromisc(struct bge_softc *sc) { struct ifnet *ifp; BGE_LOCK_ASSERT(sc); ifp = sc->bge_ifp; /* * Enable or disable promiscuous mode as needed. * Do not strip VLAN tag when promiscuous mode is enabled. */ if (ifp->if_flags & IFF_PROMISC) BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC | BGE_RXMODE_RX_KEEP_VLAN_DIAG); else BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC | BGE_RXMODE_RX_KEEP_VLAN_DIAG); } static void bge_setmulti(struct bge_softc *sc) { struct ifnet *ifp; struct ifmultiaddr *ifma; uint32_t hashes[4] = { 0, 0, 0, 0 }; int h, i; BGE_LOCK_ASSERT(sc); ifp = sc->bge_ifp; if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { for (i = 0; i < 4; i++) CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF); return; } /* First, zot all the existing filters. */ for (i = 0; i < 4; i++) CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0); /* Now program new ones. */ IF_ADDR_LOCK(ifp); TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; h = ether_crc32_le(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), ETHER_ADDR_LEN) & 0x7F; hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); } IF_ADDR_UNLOCK(ifp); for (i = 0; i < 4; i++) CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); } static void bge_sig_pre_reset(sc, type) struct bge_softc *sc; int type; { /* * Some chips don't like this so only do this if ASF is enabled */ if (sc->bge_asf_mode) bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { switch (type) { case BGE_RESET_START: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x1); /* START */ break; case BGE_RESET_STOP: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x2); /* UNLOAD */ break; } } } static void bge_sig_post_reset(sc, type) struct bge_softc *sc; int type; { if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { switch (type) { case BGE_RESET_START: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x80000001); /* START DONE */ break; case BGE_RESET_STOP: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x80000002); break; } } } static void bge_sig_legacy(sc, type) struct bge_softc *sc; int type; { if (sc->bge_asf_mode) { switch (type) { case BGE_RESET_START: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x1); /* START */ break; case BGE_RESET_STOP: bge_writemem_ind(sc, BGE_SDI_STATUS, 0x2); /* UNLOAD */ break; } } } void bge_stop_fw(struct bge_softc *); void bge_stop_fw(sc) struct bge_softc *sc; { int i; if (sc->bge_asf_mode) { bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM_FW, BGE_FW_PAUSE); CSR_WRITE_4(sc, BGE_CPU_EVENT, CSR_READ_4(sc, BGE_CPU_EVENT) != (1 << 14)); for (i = 0; i < 100; i++ ) { if (!(CSR_READ_4(sc, BGE_CPU_EVENT) & (1 << 14))) break; DELAY(10); } } } /* * Do endian, PCI and DMA initialization. Also check the on-board ROM * self-test results. */ static int bge_chipinit(struct bge_softc *sc) { uint32_t dma_rw_ctl; int i; /* Set endianness before we access any non-PCI registers. */ pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_INIT, 4); /* * Check the 'ROM failed' bit on the RX CPU to see if * self-tests passed. */ if (CSR_READ_4(sc, BGE_RXCPU_MODE) & BGE_RXCPUMODE_ROMFAIL) { device_printf(sc->bge_dev, "RX CPU self-diagnostics failed!\n"); return (ENODEV); } /* Clear the MAC control register */ CSR_WRITE_4(sc, BGE_MAC_MODE, 0); /* * Clear the MAC statistics block in the NIC's * internal memory. */ for (i = BGE_STATS_BLOCK; i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t)) BGE_MEMWIN_WRITE(sc, i, 0); for (i = BGE_STATUS_BLOCK; i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t)) BGE_MEMWIN_WRITE(sc, i, 0); /* Set up the PCI DMA control register. */ if (sc->bge_flags & BGE_FLAG_PCIE) { /* PCI Express bus */ dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); } else if (sc->bge_flags & BGE_FLAG_PCIX) { /* PCI-X bus */ if (BGE_IS_5714_FAMILY(sc)) { dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD; dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */ /* XXX magic values, Broadcom-supplied Linux driver */ if (sc->bge_asicrev == BGE_ASICREV_BCM5780) dma_rw_ctl |= (1 << 20) | (1 << 18) | BGE_PCIDMARWCTL_ONEDMA_ATONCE; else dma_rw_ctl |= (1 << 20) | (1 << 18) | (1 << 15); } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) /* * The 5704 uses a different encoding of read/write * watermarks. */ dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); else dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | (0x0F); /* * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround * for hardware bugs. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || sc->bge_asicrev == BGE_ASICREV_BCM5704) { uint32_t tmp; tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f; if (tmp == 0x6 || tmp == 0x7) dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE; } } else /* Conventional PCI bus */ dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | (0x0F); if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || sc->bge_asicrev == BGE_ASICREV_BCM5704 || sc->bge_asicrev == BGE_ASICREV_BCM5705) dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA; pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4); /* * Set up general mode register. */ CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS| BGE_MODECTL_TX_NO_PHDR_CSUM); /* * Tell the firmware the driver is running */ if (sc->bge_asf_mode & ASF_STACKUP) BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); /* * Disable memory write invalidate. Apparently it is not supported * properly by these devices. */ PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4); #ifdef __brokenalpha__ /* * Must insure that we do not cross an 8K (bytes) boundary * for DMA reads. Our highest limit is 1K bytes. This is a * restriction on some ALPHA platforms with early revision * 21174 PCI chipsets, such as the AlphaPC 164lx */ PCI_SETBIT(sc->bge_dev, BGE_PCI_DMA_RW_CTL, BGE_PCI_READ_BNDRY_1024BYTES, 4); #endif /* Set the timer prescaler (always 66Mhz) */ CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); return (0); } static int bge_blockinit(struct bge_softc *sc) { struct bge_rcb *rcb; bus_size_t vrcb; bge_hostaddr taddr; uint32_t val; int i; /* * Initialize the memory window pointer register so that * we can access the first 32K of internal NIC RAM. This will * allow us to set up the TX send ring RCBs and the RX return * ring RCBs, plus other things which live in NIC memory. */ CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0); /* Note: the BCM5704 has a smaller mbuf space than other chips. */ if (!(BGE_IS_5705_PLUS(sc))) { /* Configure mbuf memory pool */ CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1); if (sc->bge_asicrev == BGE_ASICREV_BCM5704) CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); else CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); /* Configure DMA resource pool */ CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, BGE_DMA_DESCRIPTORS); CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); } /* Configure mbuf pool watermarks */ if (!(BGE_IS_5705_PLUS(sc))) { CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10); } else { CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50); CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20); } CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); /* Configure DMA resource watermarks */ CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); /* Enable buffer manager */ if (!(BGE_IS_5705_PLUS(sc))) { CSR_WRITE_4(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN); /* Poll for buffer manager start indication */ for (i = 0; i < BGE_TIMEOUT; i++) { if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) break; DELAY(10); } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "buffer manager failed to start\n"); return (ENXIO); } } /* Enable flow-through queues */ CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); /* Wait until queue initialization is complete */ for (i = 0; i < BGE_TIMEOUT; i++) { if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) break; DELAY(10); } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "flow-through queue init failed\n"); return (ENXIO); } /* Initialize the standard RX ring control block */ rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb; rcb->bge_hostaddr.bge_addr_lo = BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr); rcb->bge_hostaddr.bge_addr_hi = BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr); bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREREAD); if (BGE_IS_5705_PLUS(sc)) rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0); else rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0); rcb->bge_nicaddr = BGE_STD_RX_RINGS; CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr); /* * Initialize the jumbo RX ring control block * We set the 'ring disabled' bit in the flags * field until we're actually ready to start * using this ring (i.e. once we set the MTU * high enough to require it). */ if (BGE_IS_JUMBO_CAPABLE(sc)) { rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; rcb->bge_hostaddr.bge_addr_lo = BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr); rcb->bge_hostaddr.bge_addr_hi = BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr); bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREREAD); rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_USE_EXT_RX_BD|BGE_RCB_FLAG_RING_DISABLED); rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr); /* Set up dummy disabled mini ring RCB */ rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb; rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED); CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); } /* * Set the BD ring replentish thresholds. The recommended * values are 1/8th the number of descriptors allocated to * each ring. */ if (BGE_IS_5705_PLUS(sc)) val = 8; else val = BGE_STD_RX_RING_CNT / 8; CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val); CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8); /* * Disable all unused send rings by setting the 'ring disabled' * bit in the flags field of all the TX send ring control blocks. * These are located in NIC memory. */ vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED)); RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); vrcb += sizeof(struct bge_rcb); } /* Configure TX RCB 0 (we use only the first ring) */ vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr); RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); RCB_WRITE_4(sc, vrcb, bge_nicaddr, BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); if (!(BGE_IS_5705_PLUS(sc))) RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0)); /* Disable all unused RX return rings */ vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; for (i = 0; i < BGE_RX_RINGS_MAX; i++) { RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0); RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0); RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, BGE_RCB_FLAG_RING_DISABLED)); RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + (i * (sizeof(uint64_t))), 0); vrcb += sizeof(struct bge_rcb); } /* Initialize RX ring indexes */ CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0); CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0); /* * Set up RX return ring 0 * Note that the NIC address for RX return rings is 0x00000000. * The return rings live entirely within the host, so the * nicaddr field in the RCB isn't used. */ vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr); RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0x00000000); RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0)); /* Set random backoff seed for TX */ CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, IF_LLADDR(sc->bge_ifp)[0] + IF_LLADDR(sc->bge_ifp)[1] + IF_LLADDR(sc->bge_ifp)[2] + IF_LLADDR(sc->bge_ifp)[3] + IF_LLADDR(sc->bge_ifp)[4] + IF_LLADDR(sc->bge_ifp)[5] + BGE_TX_BACKOFF_SEED_MASK); /* Set inter-packet gap */ CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620); /* * Specify which ring to use for packets that don't match * any RX rules. */ CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); /* * Configure number of RX lists. One interrupt distribution * list, sixteen active lists, one bad frames class. */ CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); /* Inialize RX list placement stats mask. */ CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); /* Disable host coalescing until we get it set up */ CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); /* Poll to make sure it's shut down. */ for (i = 0; i < BGE_TIMEOUT; i++) { if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) break; DELAY(10); } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "host coalescing engine failed to idle\n"); return (ENXIO); } /* Set up host coalescing defaults */ CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); if (!(BGE_IS_5705_PLUS(sc))) { CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); } CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0); CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0); /* Set up address of statistics block */ if (!(BGE_IS_5705_PLUS(sc))) { CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr)); CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr)); CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); } /* Set up address of status block */ CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr)); CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr)); sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx = 0; sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx = 0; /* Turn on host coalescing state machine */ CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); /* Turn on RX BD completion state machine and enable attentions */ CSR_WRITE_4(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN); /* Turn on RX list placement state machine */ CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); /* Turn on RX list selector state machine. */ if (!(BGE_IS_5705_PLUS(sc))) CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); /* Turn on DMA, clear stats */ CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB| BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR| BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB| BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB| ((sc->bge_flags & BGE_FLAG_TBI) ? BGE_PORTMODE_TBI : BGE_PORTMODE_MII)); /* Set misc. local control, enable interrupts on attentions */ CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN); #ifdef notdef /* Assert GPIO pins for PHY reset */ BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0| BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2); BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0| BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2); #endif /* Turn on DMA completion state machine */ if (!(BGE_IS_5705_PLUS(sc))) CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS; /* Enable host coalescing bug fix. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5755 || sc->bge_asicrev == BGE_ASICREV_BCM5787) val |= (1 << 29); /* Turn on write DMA state machine */ CSR_WRITE_4(sc, BGE_WDMA_MODE, val); /* Turn on read DMA state machine */ CSR_WRITE_4(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE|BGE_RDMAMODE_ALL_ATTNS); /* Turn on RX data completion state machine */ CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); /* Turn on RX BD initiator state machine */ CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); /* Turn on RX data and RX BD initiator state machine */ CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); /* Turn on Mbuf cluster free state machine */ if (!(BGE_IS_5705_PLUS(sc))) CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); /* Turn on send BD completion state machine */ CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); /* Turn on send data completion state machine */ CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); /* Turn on send data initiator state machine */ CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); /* Turn on send BD initiator state machine */ CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); /* Turn on send BD selector state machine */ CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER); /* ack/clear link change events */ CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| BGE_MACSTAT_LINK_CHANGED); CSR_WRITE_4(sc, BGE_MI_STS, 0); /* Enable PHY auto polling (for MII/GMII only) */ if (sc->bge_flags & BGE_FLAG_TBI) { CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); } else { BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && sc->bge_chipid != BGE_CHIPID_BCM5700_B2) CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT); } /* * Clear any pending link state attention. * Otherwise some link state change events may be lost until attention * is cleared by bge_intr() -> bge_link_upd() sequence. * It's not necessary on newer BCM chips - perhaps enabling link * state change attentions implies clearing pending attention. */ CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| BGE_MACSTAT_LINK_CHANGED); /* Enable link state change attentions. */ BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); return (0); } const struct bge_revision * bge_lookup_rev(uint32_t chipid) { const struct bge_revision *br; for (br = bge_revisions; br->br_name != NULL; br++) { if (br->br_chipid == chipid) return (br); } for (br = bge_majorrevs; br->br_name != NULL; br++) { if (br->br_chipid == BGE_ASICREV(chipid)) return (br); } return (NULL); } const struct bge_vendor * bge_lookup_vendor(uint16_t vid) { const struct bge_vendor *v; for (v = bge_vendors; v->v_name != NULL; v++) if (v->v_id == vid) return (v); panic("%s: unknown vendor %d", __func__, vid); return (NULL); } /* * Probe for a Broadcom chip. Check the PCI vendor and device IDs * against our list and return its name if we find a match. * * Note that since the Broadcom controller contains VPD support, we * can get the device name string from the controller itself instead * of the compiled-in string. This is a little slow, but it guarantees * we'll always announce the right product name. Unfortunately, this * is possible only later in bge_attach(), when we have established * access to EEPROM. */ static int bge_probe(device_t dev) { struct bge_type *t = bge_devs; struct bge_softc *sc = device_get_softc(dev); bzero(sc, sizeof(struct bge_softc)); sc->bge_dev = dev; while(t->bge_vid != 0) { if ((pci_get_vendor(dev) == t->bge_vid) && (pci_get_device(dev) == t->bge_did)) { char buf[64]; const struct bge_revision *br; const struct bge_vendor *v; uint32_t id; id = pci_read_config(dev, BGE_PCI_MISC_CTL, 4) & BGE_PCIMISCCTL_ASICREV; br = bge_lookup_rev(id); id >>= 16; v = bge_lookup_vendor(t->bge_vid); if (br == NULL) snprintf(buf, 64, "%s unknown ASIC (%#04x)", v->v_name, id); else snprintf(buf, 64, "%s %s, ASIC rev. %#04x", v->v_name, br->br_name, id); device_set_desc_copy(dev, buf); if (pci_get_subvendor(dev) == DELL_VENDORID) sc->bge_flags |= BGE_FLAG_NO3LED; return (0); } t++; } return (ENXIO); } static void bge_dma_free(struct bge_softc *sc) { int i; /* Destroy DMA maps for RX buffers. */ for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_std_dmamap[i]) bus_dmamap_destroy(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[i]); } /* Destroy DMA maps for jumbo RX buffers. */ for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_jumbo_dmamap[i]) bus_dmamap_destroy(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[i]); } /* Destroy DMA maps for TX buffers. */ for (i = 0; i < BGE_TX_RING_CNT; i++) { if (sc->bge_cdata.bge_tx_dmamap[i]) bus_dmamap_destroy(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_tx_dmamap[i]); } if (sc->bge_cdata.bge_mtag) bus_dma_tag_destroy(sc->bge_cdata.bge_mtag); /* Destroy standard RX ring. */ if (sc->bge_cdata.bge_rx_std_ring_map) bus_dmamap_unload(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map); if (sc->bge_cdata.bge_rx_std_ring_map && sc->bge_ldata.bge_rx_std_ring) bus_dmamem_free(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_ldata.bge_rx_std_ring, sc->bge_cdata.bge_rx_std_ring_map); if (sc->bge_cdata.bge_rx_std_ring_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_rx_std_ring_tag); /* Destroy jumbo RX ring. */ if (sc->bge_cdata.bge_rx_jumbo_ring_map) bus_dmamap_unload(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map); if (sc->bge_cdata.bge_rx_jumbo_ring_map && sc->bge_ldata.bge_rx_jumbo_ring) bus_dmamem_free(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_ldata.bge_rx_jumbo_ring, sc->bge_cdata.bge_rx_jumbo_ring_map); if (sc->bge_cdata.bge_rx_jumbo_ring_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_rx_jumbo_ring_tag); /* Destroy RX return ring. */ if (sc->bge_cdata.bge_rx_return_ring_map) bus_dmamap_unload(sc->bge_cdata.bge_rx_return_ring_tag, sc->bge_cdata.bge_rx_return_ring_map); if (sc->bge_cdata.bge_rx_return_ring_map && sc->bge_ldata.bge_rx_return_ring) bus_dmamem_free(sc->bge_cdata.bge_rx_return_ring_tag, sc->bge_ldata.bge_rx_return_ring, sc->bge_cdata.bge_rx_return_ring_map); if (sc->bge_cdata.bge_rx_return_ring_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_rx_return_ring_tag); /* Destroy TX ring. */ if (sc->bge_cdata.bge_tx_ring_map) bus_dmamap_unload(sc->bge_cdata.bge_tx_ring_tag, sc->bge_cdata.bge_tx_ring_map); if (sc->bge_cdata.bge_tx_ring_map && sc->bge_ldata.bge_tx_ring) bus_dmamem_free(sc->bge_cdata.bge_tx_ring_tag, sc->bge_ldata.bge_tx_ring, sc->bge_cdata.bge_tx_ring_map); if (sc->bge_cdata.bge_tx_ring_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_tx_ring_tag); /* Destroy status block. */ if (sc->bge_cdata.bge_status_map) bus_dmamap_unload(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map); if (sc->bge_cdata.bge_status_map && sc->bge_ldata.bge_status_block) bus_dmamem_free(sc->bge_cdata.bge_status_tag, sc->bge_ldata.bge_status_block, sc->bge_cdata.bge_status_map); if (sc->bge_cdata.bge_status_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_status_tag); /* Destroy statistics block. */ if (sc->bge_cdata.bge_stats_map) bus_dmamap_unload(sc->bge_cdata.bge_stats_tag, sc->bge_cdata.bge_stats_map); if (sc->bge_cdata.bge_stats_map && sc->bge_ldata.bge_stats) bus_dmamem_free(sc->bge_cdata.bge_stats_tag, sc->bge_ldata.bge_stats, sc->bge_cdata.bge_stats_map); if (sc->bge_cdata.bge_stats_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_stats_tag); /* Destroy the parent tag. */ if (sc->bge_cdata.bge_parent_tag) bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag); } static int bge_dma_alloc(device_t dev) { struct bge_dmamap_arg ctx; struct bge_softc *sc; int i, error; sc = device_get_softc(dev); /* * Allocate the parent bus DMA tag appropriate for PCI. */ error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev),/* parent */ 1, 0, /* alignment, boundary */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ MAXBSIZE, BGE_NSEG_NEW, /* maxsize, nsegments */ BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 0, /* flags */ NULL, NULL, /* lockfunc, lockarg */ &sc->bge_cdata.bge_parent_tag); if (error != 0) { device_printf(sc->bge_dev, "could not allocate parent dma tag\n"); return (ENOMEM); } /* * Create tag for RX mbufs. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES * BGE_NSEG_NEW, BGE_NSEG_NEW, MCLBYTES, BUS_DMA_ALLOCNOW, NULL, NULL, &sc->bge_cdata.bge_mtag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Create DMA maps for RX buffers. */ for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { error = bus_dmamap_create(sc->bge_cdata.bge_mtag, 0, &sc->bge_cdata.bge_rx_std_dmamap[i]); if (error) { device_printf(sc->bge_dev, "can't create DMA map for RX\n"); return (ENOMEM); } } /* Create DMA maps for TX buffers. */ for (i = 0; i < BGE_TX_RING_CNT; i++) { error = bus_dmamap_create(sc->bge_cdata.bge_mtag, 0, &sc->bge_cdata.bge_tx_dmamap[i]); if (error) { device_printf(sc->bge_dev, "can't create DMA map for RX\n"); return (ENOMEM); } } /* Create tag for standard RX ring. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_STD_RX_RING_SZ, 1, BGE_STD_RX_RING_SZ, 0, NULL, NULL, &sc->bge_cdata.bge_rx_std_ring_tag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for standard RX ring. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_std_ring_tag, (void **)&sc->bge_ldata.bge_rx_std_ring, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_std_ring_map); if (error) return (ENOMEM); bzero((char *)sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ); /* Load the address of the standard RX ring. */ ctx.bge_maxsegs = 1; ctx.sc = sc; error = bus_dmamap_load(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map, sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_rx_std_ring_paddr = ctx.bge_busaddr; /* Create tags for jumbo mbufs. */ if (BGE_IS_JUMBO_CAPABLE(sc)) { error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MJUM9BYTES, BGE_NSEG_JUMBO, PAGE_SIZE, 0, NULL, NULL, &sc->bge_cdata.bge_mtag_jumbo); if (error) { device_printf(sc->bge_dev, "could not allocate jumbo dma tag\n"); return (ENOMEM); } /* Create tag for jumbo RX ring. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_JUMBO_RX_RING_SZ, 1, BGE_JUMBO_RX_RING_SZ, 0, NULL, NULL, &sc->bge_cdata.bge_rx_jumbo_ring_tag); if (error) { device_printf(sc->bge_dev, "could not allocate jumbo ring dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for jumbo RX ring. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_jumbo_ring_tag, (void **)&sc->bge_ldata.bge_rx_jumbo_ring, BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->bge_cdata.bge_rx_jumbo_ring_map); if (error) return (ENOMEM); /* Load the address of the jumbo RX ring. */ ctx.bge_maxsegs = 1; ctx.sc = sc; error = bus_dmamap_load(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map, sc->bge_ldata.bge_rx_jumbo_ring, BGE_JUMBO_RX_RING_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_rx_jumbo_ring_paddr = ctx.bge_busaddr; /* Create DMA maps for jumbo RX buffers. */ for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { error = bus_dmamap_create(sc->bge_cdata.bge_mtag_jumbo, 0, &sc->bge_cdata.bge_rx_jumbo_dmamap[i]); if (error) { device_printf(sc->bge_dev, "can't create DMA map for jumbo RX\n"); return (ENOMEM); } } } /* Create tag for RX return ring. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_RX_RTN_RING_SZ(sc), 1, BGE_RX_RTN_RING_SZ(sc), 0, NULL, NULL, &sc->bge_cdata.bge_rx_return_ring_tag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for RX return ring. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_return_ring_tag, (void **)&sc->bge_ldata.bge_rx_return_ring, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_return_ring_map); if (error) return (ENOMEM); bzero((char *)sc->bge_ldata.bge_rx_return_ring, BGE_RX_RTN_RING_SZ(sc)); /* Load the address of the RX return ring. */ ctx.bge_maxsegs = 1; ctx.sc = sc; error = bus_dmamap_load(sc->bge_cdata.bge_rx_return_ring_tag, sc->bge_cdata.bge_rx_return_ring_map, sc->bge_ldata.bge_rx_return_ring, BGE_RX_RTN_RING_SZ(sc), bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_rx_return_ring_paddr = ctx.bge_busaddr; /* Create tag for TX ring. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_TX_RING_SZ, 1, BGE_TX_RING_SZ, 0, NULL, NULL, &sc->bge_cdata.bge_tx_ring_tag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for TX ring. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_tx_ring_tag, (void **)&sc->bge_ldata.bge_tx_ring, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_tx_ring_map); if (error) return (ENOMEM); bzero((char *)sc->bge_ldata.bge_tx_ring, BGE_TX_RING_SZ); /* Load the address of the TX ring. */ ctx.bge_maxsegs = 1; ctx.sc = sc; error = bus_dmamap_load(sc->bge_cdata.bge_tx_ring_tag, sc->bge_cdata.bge_tx_ring_map, sc->bge_ldata.bge_tx_ring, BGE_TX_RING_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_tx_ring_paddr = ctx.bge_busaddr; /* Create tag for status block. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_STATUS_BLK_SZ, 1, BGE_STATUS_BLK_SZ, 0, NULL, NULL, &sc->bge_cdata.bge_status_tag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for status block. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_status_tag, (void **)&sc->bge_ldata.bge_status_block, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_status_map); if (error) return (ENOMEM); bzero((char *)sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ); /* Load the address of the status block. */ ctx.sc = sc; ctx.bge_maxsegs = 1; error = bus_dmamap_load(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map, sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_status_block_paddr = ctx.bge_busaddr; /* Create tag for statistics block. */ error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, BGE_STATS_SZ, 1, BGE_STATS_SZ, 0, NULL, NULL, &sc->bge_cdata.bge_stats_tag); if (error) { device_printf(sc->bge_dev, "could not allocate dma tag\n"); return (ENOMEM); } /* Allocate DMA'able memory for statistics block. */ error = bus_dmamem_alloc(sc->bge_cdata.bge_stats_tag, (void **)&sc->bge_ldata.bge_stats, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_stats_map); if (error) return (ENOMEM); bzero((char *)sc->bge_ldata.bge_stats, BGE_STATS_SZ); /* Load the address of the statstics block. */ ctx.sc = sc; ctx.bge_maxsegs = 1; error = bus_dmamap_load(sc->bge_cdata.bge_stats_tag, sc->bge_cdata.bge_stats_map, sc->bge_ldata.bge_stats, BGE_STATS_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); if (error) return (ENOMEM); sc->bge_ldata.bge_stats_paddr = ctx.bge_busaddr; return (0); } static int bge_attach(device_t dev) { struct ifnet *ifp; struct bge_softc *sc; uint32_t hwcfg = 0; uint32_t mac_tmp = 0; u_char eaddr[6]; int error = 0, rid; int trys, reg; sc = device_get_softc(dev); sc->bge_dev = dev; /* * Map control/status registers. */ pci_enable_busmaster(dev); rid = BGE_PCI_BAR0; sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE|PCI_RF_DENSE); if (sc->bge_res == NULL) { device_printf (sc->bge_dev, "couldn't map memory\n"); error = ENXIO; goto fail; } sc->bge_btag = rman_get_bustag(sc->bge_res); sc->bge_bhandle = rman_get_bushandle(sc->bge_res); /* Allocate interrupt. */ rid = 0; sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE); if (sc->bge_irq == NULL) { device_printf(sc->bge_dev, "couldn't map interrupt\n"); error = ENXIO; goto fail; } BGE_LOCK_INIT(sc, device_get_nameunit(dev)); /* Save ASIC rev. */ sc->bge_chipid = pci_read_config(dev, BGE_PCI_MISC_CTL, 4) & BGE_PCIMISCCTL_ASICREV; sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid); sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid); /* Save chipset family. */ switch (sc->bge_asicrev) { case BGE_ASICREV_BCM5700: case BGE_ASICREV_BCM5701: case BGE_ASICREV_BCM5703: case BGE_ASICREV_BCM5704: sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO; break; case BGE_ASICREV_BCM5714_A0: case BGE_ASICREV_BCM5780: case BGE_ASICREV_BCM5714: sc->bge_flags |= BGE_FLAG_5714_FAMILY /* | BGE_FLAG_JUMBO */; /* Fall through */ case BGE_ASICREV_BCM5750: case BGE_ASICREV_BCM5752: case BGE_ASICREV_BCM5755: case BGE_ASICREV_BCM5787: sc->bge_flags |= BGE_FLAG_575X_PLUS; /* Fall through */ case BGE_ASICREV_BCM5705: sc->bge_flags |= BGE_FLAG_5705_PLUS; break; } /* * Check if this is a PCI-X or PCI Express device. */ #if __FreeBSD_version > 700010 if (pci_find_extcap(dev, PCIY_EXPRESS, ®) == 0) { /* * Found a PCI Express capabilities register, this * must be a PCI Express device. */ if (reg != 0) sc->bge_flags |= BGE_FLAG_PCIE; } else if (pci_find_extcap(dev, PCIY_PCIX, ®) == 0) { if (reg != 0) sc->bge_flags |= BGE_FLAG_PCIX; } #else if (BGE_IS_5705_PLUS(sc)) { reg = pci_read_config(dev, BGE_PCIE_CAPID_REG, 4); if ((reg & 0xff) == BGE_PCIE_CAPID) sc->bge_flags |= BGE_FLAG_PCIE; } else { /* * Check if the device is in PCI-X Mode. * (This bit is not valid on PCI Express controllers.) */ if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) & BGE_PCISTATE_PCI_BUSMODE) == 0) sc->bge_flags |= BGE_FLAG_PCIX; } #endif /* Try to reset the chip. */ if (bge_reset(sc)) { device_printf(sc->bge_dev, "chip reset failed\n"); bge_release_resources(sc); error = ENXIO; goto fail; } sc->bge_asf_mode = 0; if (bge_allow_asf && (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER)) { if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG) & BGE_HWCFG_ASF) { sc->bge_asf_mode |= ASF_ENABLE; sc->bge_asf_mode |= ASF_STACKUP; if (sc->bge_asicrev == BGE_ASICREV_BCM5750) { sc->bge_asf_mode |= ASF_NEW_HANDSHAKE; } } } /* Try to reset the chip again the nice way. */ bge_stop_fw(sc); bge_sig_pre_reset(sc, BGE_RESET_STOP); if (bge_reset(sc)) { device_printf(sc->bge_dev, "chip reset failed\n"); bge_release_resources(sc); error = ENXIO; goto fail; } bge_sig_legacy(sc, BGE_RESET_STOP); bge_sig_post_reset(sc, BGE_RESET_STOP); if (bge_chipinit(sc)) { device_printf(sc->bge_dev, "chip initialization failed\n"); bge_release_resources(sc); error = ENXIO; goto fail; } /* * Get station address from the EEPROM. */ mac_tmp = bge_readmem_ind(sc, 0x0c14); if ((mac_tmp >> 16) == 0x484b) { eaddr[0] = (u_char)(mac_tmp >> 8); eaddr[1] = (u_char)mac_tmp; mac_tmp = bge_readmem_ind(sc, 0x0c18); eaddr[2] = (u_char)(mac_tmp >> 24); eaddr[3] = (u_char)(mac_tmp >> 16); eaddr[4] = (u_char)(mac_tmp >> 8); eaddr[5] = (u_char)mac_tmp; } else if (bge_read_eeprom(sc, eaddr, BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { device_printf(sc->bge_dev, "failed to read station address\n"); bge_release_resources(sc); error = ENXIO; goto fail; } /* 5705 limits RX return ring to 512 entries. */ if (BGE_IS_5705_PLUS(sc)) sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705; else sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; if (bge_dma_alloc(dev)) { device_printf(sc->bge_dev, "failed to allocate DMA resources\n"); bge_release_resources(sc); error = ENXIO; goto fail; } /* Set default tuneable values. */ sc->bge_stat_ticks = BGE_TICKS_PER_SEC; sc->bge_rx_coal_ticks = 150; sc->bge_tx_coal_ticks = 150; sc->bge_rx_max_coal_bds = 10; sc->bge_tx_max_coal_bds = 10; /* Set up ifnet structure */ ifp = sc->bge_ifp = if_alloc(IFT_ETHER); if (ifp == NULL) { device_printf(sc->bge_dev, "failed to if_alloc()\n"); bge_release_resources(sc); error = ENXIO; goto fail; } ifp->if_softc = sc; if_initname(ifp, device_get_name(dev), device_get_unit(dev)); ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = bge_ioctl; ifp->if_start = bge_start; ifp->if_init = bge_init; ifp->if_mtu = ETHERMTU; ifp->if_snd.ifq_drv_maxlen = BGE_TX_RING_CNT - 1; IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); IFQ_SET_READY(&ifp->if_snd); ifp->if_hwassist = BGE_CSUM_FEATURES; ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM; ifp->if_capenable = ifp->if_capabilities; #ifdef DEVICE_POLLING ifp->if_capabilities |= IFCAP_POLLING; #endif /* * 5700 B0 chips do not support checksumming correctly due * to hardware bugs. */ if (sc->bge_chipid == BGE_CHIPID_BCM5700_B0) { ifp->if_capabilities &= ~IFCAP_HWCSUM; ifp->if_capenable &= IFCAP_HWCSUM; ifp->if_hwassist = 0; } /* * Figure out what sort of media we have by checking the * hardware config word in the first 32k of NIC internal memory, * or fall back to examining the EEPROM if necessary. * Note: on some BCM5700 cards, this value appears to be unset. * If that's the case, we have to rely on identifying the NIC * by its PCI subsystem ID, as we do below for the SysKonnect * SK-9D41. */ if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG); else { if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET, sizeof(hwcfg))) { device_printf(sc->bge_dev, "failed to read EEPROM\n"); bge_release_resources(sc); error = ENXIO; goto fail; } hwcfg = ntohl(hwcfg); } if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) sc->bge_flags |= BGE_FLAG_TBI; /* The SysKonnect SK-9D41 is a 1000baseSX card. */ if ((pci_read_config(dev, BGE_PCI_SUBSYS, 4) >> 16) == SK_SUBSYSID_9D41) sc->bge_flags |= BGE_FLAG_TBI; if (sc->bge_flags & BGE_FLAG_TBI) { ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, bge_ifmedia_upd, bge_ifmedia_sts); ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO); sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media; } else { /* * Do transceiver setup and tell the firmware the * driver is down so we can try to get access the * probe if ASF is running. Retry a couple of times * if we get a conflict with the ASF firmware accessing * the PHY. */ BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); again: bge_asf_driver_up(sc); trys = 0; if (mii_phy_probe(dev, &sc->bge_miibus, bge_ifmedia_upd, bge_ifmedia_sts)) { if (trys++ < 4) { device_printf(sc->bge_dev, "Try again\n"); bge_miibus_writereg(sc->bge_dev, 1, MII_BMCR, BMCR_RESET); goto again; } device_printf(sc->bge_dev, "MII without any PHY!\n"); bge_release_resources(sc); error = ENXIO; goto fail; } /* * Now tell the firmware we are going up after probing the PHY */ if (sc->bge_asf_mode & ASF_STACKUP) BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); } /* * When using the BCM5701 in PCI-X mode, data corruption has * been observed in the first few bytes of some received packets. * Aligning the packet buffer in memory eliminates the corruption. * Unfortunately, this misaligns the packet payloads. On platforms * which do not support unaligned accesses, we will realign the * payloads by copying the received packets. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5701 && sc->bge_flags & BGE_FLAG_PCIX) sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG; /* * Call MI attach routine. */ ether_ifattach(ifp, eaddr); callout_init_mtx(&sc->bge_stat_ch, &sc->bge_mtx, 0); /* * Hookup IRQ last. */ error = bus_setup_intr(dev, sc->bge_irq, INTR_TYPE_NET | INTR_MPSAFE, bge_intr, sc, &sc->bge_intrhand); if (error) { bge_detach(dev); device_printf(sc->bge_dev, "couldn't set up irq\n"); } bge_add_sysctls(sc); fail: return (error); } static int bge_detach(device_t dev) { struct bge_softc *sc; struct ifnet *ifp; sc = device_get_softc(dev); ifp = sc->bge_ifp; #ifdef DEVICE_POLLING if (ifp->if_capenable & IFCAP_POLLING) ether_poll_deregister(ifp); #endif BGE_LOCK(sc); bge_stop(sc); bge_reset(sc); BGE_UNLOCK(sc); ether_ifdetach(ifp); if (sc->bge_flags & BGE_FLAG_TBI) { ifmedia_removeall(&sc->bge_ifmedia); } else { bus_generic_detach(dev); device_delete_child(dev, sc->bge_miibus); } bge_release_resources(sc); return (0); } static void bge_release_resources(struct bge_softc *sc) { device_t dev; dev = sc->bge_dev; if (sc->bge_vpd_prodname != NULL) free(sc->bge_vpd_prodname, M_DEVBUF); if (sc->bge_vpd_readonly != NULL) free(sc->bge_vpd_readonly, M_DEVBUF); if (sc->bge_intrhand != NULL) bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand); if (sc->bge_irq != NULL) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq); if (sc->bge_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, BGE_PCI_BAR0, sc->bge_res); if (sc->bge_ifp != NULL) if_free(sc->bge_ifp); bge_dma_free(sc); if (mtx_initialized(&sc->bge_mtx)) /* XXX */ BGE_LOCK_DESTROY(sc); } static int bge_reset(struct bge_softc *sc) { device_t dev; uint32_t cachesize, command, pcistate, reset; void (*write_op)(struct bge_softc *, int, int); int i, val = 0; dev = sc->bge_dev; if (BGE_IS_5705_PLUS(sc) && !BGE_IS_5714_FAMILY(sc)) if (sc->bge_flags & BGE_FLAG_PCIE) write_op = bge_writemem_direct; else write_op = bge_writemem_ind; else write_op = bge_writereg_ind; /* Save some important PCI state. */ cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4); command = pci_read_config(dev, BGE_PCI_CMD, 4); pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4); pci_write_config(dev, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4); /* Disable fastboot on controllers that support it. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5752 || sc->bge_asicrev == BGE_ASICREV_BCM5755 || sc->bge_asicrev == BGE_ASICREV_BCM5787) { if (bootverbose) device_printf(sc->bge_dev, "%s: Disabling fastboot\n", __FUNCTION__); CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0); } /* * Write the magic number to SRAM at offset 0xB50. * When firmware finishes its initialization it will * write ~BGE_MAGIC_NUMBER to the same location. */ bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1); /* XXX: Broadcom Linux driver. */ if (sc->bge_flags & BGE_FLAG_PCIE) { if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */ CSR_WRITE_4(sc, 0x7e2c, 0x20); if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { /* Prevent PCIE link training during global reset */ CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29)); reset |= (1<<29); } } /* * Set GPHY Power Down Override to leave GPHY * powered up in D0 uninitialized. */ if (BGE_IS_5705_PLUS(sc)) reset |= 0x04000000; /* Issue global reset */ write_op(sc, BGE_MISC_CFG, reset); DELAY(1000); /* XXX: Broadcom Linux driver. */ if (sc->bge_flags & BGE_FLAG_PCIE) { if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) { uint32_t v; DELAY(500000); /* wait for link training to complete */ v = pci_read_config(dev, 0xc4, 4); pci_write_config(dev, 0xc4, v | (1<<15), 4); } /* Set PCIE max payload size to 128 bytes and clear error status. */ pci_write_config(dev, 0xd8, 0xf5000, 4); } /* Reset some of the PCI state that got zapped by reset. */ pci_write_config(dev, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4); pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4); pci_write_config(dev, BGE_PCI_CMD, command, 4); write_op(sc, BGE_MISC_CFG, (65 << 1)); /* Enable memory arbiter. */ if (BGE_IS_5714_FAMILY(sc)) { uint32_t val; val = CSR_READ_4(sc, BGE_MARB_MODE); CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val); } else CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); /* * Poll until we see the 1's complement of the magic number. * This indicates that the firmware initialization * is complete. */ for (i = 0; i < BGE_TIMEOUT; i++) { val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); if (val == ~BGE_MAGIC_NUMBER) break; DELAY(10); } if (i == BGE_TIMEOUT) { device_printf(sc->bge_dev, "firmware handshake timed out! " "found 0x%08X\n", val); } /* * XXX Wait for the value of the PCISTATE register to * return to its original pre-reset state. This is a * fairly good indicator of reset completion. If we don't * wait for the reset to fully complete, trying to read * from the device's non-PCI registers may yield garbage * results. */ for (i = 0; i < BGE_TIMEOUT; i++) { if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate) break; DELAY(10); } if (sc->bge_flags & BGE_FLAG_PCIE) { reset = bge_readmem_ind(sc, 0x7c00); bge_writemem_ind(sc, 0x7c00, reset | (1 << 25)); } /* Fix up byte swapping. */ CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| BGE_MODECTL_BYTESWAP_DATA); /* Tell the ASF firmware we are up */ if (sc->bge_asf_mode & ASF_STACKUP) BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); CSR_WRITE_4(sc, BGE_MAC_MODE, 0); /* * The 5704 in TBI mode apparently needs some special * adjustment to insure the SERDES drive level is set * to 1.2V. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5704 && sc->bge_flags & BGE_FLAG_TBI) { uint32_t serdescfg; serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG); serdescfg = (serdescfg & ~0xFFF) | 0x880; CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg); } /* XXX: Broadcom Linux driver. */ if (sc->bge_flags & BGE_FLAG_PCIE && sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { uint32_t v; v = CSR_READ_4(sc, 0x7c00); CSR_WRITE_4(sc, 0x7c00, v | (1<<25)); } DELAY(10000); return(0); } /* * Frame reception handling. This is called if there's a frame * on the receive return list. * * Note: we have to be able to handle two possibilities here: * 1) the frame is from the jumbo receive ring * 2) the frame is from the standard receive ring */ static void bge_rxeof(struct bge_softc *sc) { struct ifnet *ifp; int stdcnt = 0, jumbocnt = 0; BGE_LOCK_ASSERT(sc); /* Nothing to do. */ if (sc->bge_rx_saved_considx == sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) return; ifp = sc->bge_ifp; bus_dmamap_sync(sc->bge_cdata.bge_rx_return_ring_tag, sc->bge_cdata.bge_rx_return_ring_map, BUS_DMASYNC_POSTREAD); bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_POSTREAD); if (BGE_IS_JUMBO_CAPABLE(sc)) bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_POSTREAD); while(sc->bge_rx_saved_considx != sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) { struct bge_rx_bd *cur_rx; uint32_t rxidx; struct mbuf *m = NULL; uint16_t vlan_tag = 0; int have_tag = 0; #ifdef DEVICE_POLLING if (ifp->if_capenable & IFCAP_POLLING) { if (sc->rxcycles <= 0) break; sc->rxcycles--; } #endif cur_rx = &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx]; rxidx = cur_rx->bge_idx; BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt); if (!(ifp->if_flags & IFF_PROMISC) && (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG)) { have_tag = 1; vlan_tag = cur_rx->bge_vlan_tag; } if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[rxidx], BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, sc->bge_cdata.bge_rx_jumbo_dmamap[rxidx]); m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL; jumbocnt++; if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { ifp->if_ierrors++; bge_newbuf_jumbo(sc, sc->bge_jumbo, m); continue; } if (bge_newbuf_jumbo(sc, sc->bge_jumbo, NULL) == ENOBUFS) { ifp->if_ierrors++; bge_newbuf_jumbo(sc, sc->bge_jumbo, m); continue; } } else { BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[rxidx], BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_rx_std_dmamap[rxidx]); m = sc->bge_cdata.bge_rx_std_chain[rxidx]; sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; stdcnt++; if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { ifp->if_ierrors++; bge_newbuf_std(sc, sc->bge_std, m); continue; } if (bge_newbuf_std(sc, sc->bge_std, NULL) == ENOBUFS) { ifp->if_ierrors++; bge_newbuf_std(sc, sc->bge_std, m); continue; } } ifp->if_ipackets++; #ifndef __NO_STRICT_ALIGNMENT /* * For architectures with strict alignment we must make sure * the payload is aligned. */ if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) { bcopy(m->m_data, m->m_data + ETHER_ALIGN, cur_rx->bge_len); m->m_data += ETHER_ALIGN; } #endif m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN; m->m_pkthdr.rcvif = ifp; if (ifp->if_capenable & IFCAP_RXCSUM) { if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) { m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; if ((cur_rx->bge_ip_csum ^ 0xffff) == 0) m->m_pkthdr.csum_flags |= CSUM_IP_VALID; } if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM && m->m_pkthdr.len >= ETHER_MIN_NOPAD) { m->m_pkthdr.csum_data = cur_rx->bge_tcp_udp_csum; m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | CSUM_PSEUDO_HDR; } } /* * If we received a packet with a vlan tag, * attach that information to the packet. */ if (have_tag) { m->m_pkthdr.ether_vtag = vlan_tag; m->m_flags |= M_VLANTAG; } BGE_UNLOCK(sc); (*ifp->if_input)(ifp, m); BGE_LOCK(sc); } if (stdcnt > 0) bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREWRITE); if (BGE_IS_JUMBO_CAPABLE(sc) && jumbocnt > 0) bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); if (stdcnt) CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); if (jumbocnt) CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); #ifdef notyet /* * This register wraps very quickly under heavy packet drops. * If you need correct statistics, you can enable this check. */ if (BGE_IS_5705_PLUS(sc)) ifp->if_ierrors += CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); #endif } static void bge_txeof(struct bge_softc *sc) { struct bge_tx_bd *cur_tx = NULL; struct ifnet *ifp; BGE_LOCK_ASSERT(sc); /* Nothing to do. */ if (sc->bge_tx_saved_considx == sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) return; ifp = sc->bge_ifp; bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); /* * Go through our tx ring and free mbufs for those * frames that have been sent. */ while (sc->bge_tx_saved_considx != sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) { uint32_t idx = 0; idx = sc->bge_tx_saved_considx; cur_tx = &sc->bge_ldata.bge_tx_ring[idx]; if (cur_tx->bge_flags & BGE_TXBDFLAG_END) ifp->if_opackets++; if (sc->bge_cdata.bge_tx_chain[idx] != NULL) { bus_dmamap_sync(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_tx_dmamap[idx], BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->bge_cdata.bge_mtag, sc->bge_cdata.bge_tx_dmamap[idx]); m_freem(sc->bge_cdata.bge_tx_chain[idx]); sc->bge_cdata.bge_tx_chain[idx] = NULL; } sc->bge_txcnt--; BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); sc->bge_timer = 0; } if (cur_tx != NULL) ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; } #ifdef DEVICE_POLLING static void bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) { struct bge_softc *sc = ifp->if_softc; uint32_t statusword; BGE_LOCK(sc); if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { BGE_UNLOCK(sc); return; } bus_dmamap_sync(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map, BUS_DMASYNC_POSTREAD); statusword = atomic_readandclear_32( &sc->bge_ldata.bge_status_block->bge_status); bus_dmamap_sync(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map, BUS_DMASYNC_PREREAD); /* Note link event. It will be processed by POLL_AND_CHECK_STATUS cmd */ if (statusword & BGE_STATFLAG_LINKSTATE_CHANGED) sc->bge_link_evt++; if (cmd == POLL_AND_CHECK_STATUS) if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || sc->bge_link_evt || (sc->bge_flags & BGE_FLAG_TBI)) bge_link_upd(sc); sc->rxcycles = count; bge_rxeof(sc); bge_txeof(sc); if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) bge_start_locked(ifp); BGE_UNLOCK(sc); } #endif /* DEVICE_POLLING */ static void bge_intr(void *xsc) { struct bge_softc *sc; struct ifnet *ifp; uint32_t statusword; sc = xsc; BGE_LOCK(sc); ifp = sc->bge_ifp; #ifdef DEVICE_POLLING if (ifp->if_capenable & IFCAP_POLLING) { BGE_UNLOCK(sc); return; } #endif /* * Do the mandatory PCI flush as well as get the link status. */ statusword = CSR_READ_4(sc, BGE_MAC_STS) & BGE_MACSTAT_LINK_CHANGED; /* Ack interrupt and stop others from occuring. */ CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); /* Make sure the descriptor ring indexes are coherent. */ bus_dmamap_sync(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map, BUS_DMASYNC_POSTREAD); bus_dmamap_sync(sc->bge_cdata.bge_status_tag, sc->bge_cdata.bge_status_map, BUS_DMASYNC_PREREAD); if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || statusword || sc->bge_link_evt) bge_link_upd(sc); if (ifp->if_drv_flags & IFF_DRV_RUNNING) { /* Check RX return ring producer/consumer. */ bge_rxeof(sc); /* Check TX ring producer/consumer. */ bge_txeof(sc); } /* Re-enable interrupts. */ CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); if (ifp->if_drv_flags & IFF_DRV_RUNNING && !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) bge_start_locked(ifp); BGE_UNLOCK(sc); } static void bge_asf_driver_up(struct bge_softc *sc) { if (sc->bge_asf_mode & ASF_STACKUP) { /* Send ASF heartbeat aprox. every 2s */ if (sc->bge_asf_count) sc->bge_asf_count --; else { sc->bge_asf_count = 5; bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM_FW, BGE_FW_DRV_ALIVE); bge_writemem_ind(sc, BGE_SOFTWARE_GENNCOMM_FW_LEN, 4); bge_writemem_ind(sc, BGE_SOFTWARE_GENNCOMM_FW_DATA, 3); CSR_WRITE_4(sc, BGE_CPU_EVENT, CSR_READ_4(sc, BGE_CPU_EVENT) != (1 << 14)); } } } static void bge_tick(void *xsc) { struct bge_softc *sc = xsc; struct mii_data *mii = NULL; BGE_LOCK_ASSERT(sc); if (BGE_IS_5705_PLUS(sc)) bge_stats_update_regs(sc); else bge_stats_update(sc); if ((sc->bge_flags & BGE_FLAG_TBI) == 0) { mii = device_get_softc(sc->bge_miibus); /* Don't mess with the PHY in IPMI/ASF mode */ if (!((sc->bge_asf_mode & ASF_STACKUP) && (sc->bge_link))) mii_tick(mii); } else { /* * Since in TBI mode auto-polling can't be used we should poll * link status manually. Here we register pending link event * and trigger interrupt. */ #ifdef DEVICE_POLLING /* In polling mode we poll link state in bge_poll(). */ if (!(sc->bge_ifp->if_capenable & IFCAP_POLLING)) #endif { sc->bge_link_evt++; BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET); } } bge_asf_driver_up(sc); bge_watchdog(sc); callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); } static void bge_stats_update_regs(struct bge_softc *sc) { struct ifnet *ifp; ifp = sc->bge_ifp; ifp->if_collisions += CSR_READ_4(sc, BGE_MAC_STATS + offsetof(struct bge_mac_stats_regs, etherStatsCollisions)); ifp->if_ierrors += CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); } static void bge_stats_update(struct bge_softc *sc) { struct ifnet *ifp; bus_size_t stats; uint32_t cnt; /* current register value */ ifp = sc->bge_ifp; stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; #define READ_STAT(sc, stats, stat) \ CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) cnt = READ_STAT(sc, stats, txstats.etherStatsCollisions.bge_addr_lo); ifp->if_collisions += (uint32_t)(cnt - sc->bge_tx_collisions); sc->bge_tx_collisions = cnt; cnt = READ_STAT(sc, stats, ifInDiscards.bge_addr_lo); ifp->if_ierrors += (uint32_t)(cnt - sc->bge_rx_discards); sc->bge_rx_discards = cnt; cnt = READ_STAT(sc, stats, txstats.ifOutDiscards.bge_addr_lo); ifp->if_oerrors += (uint32_t)(cnt - sc->bge_tx_discards); sc->bge_tx_discards = cnt; #undef READ_STAT } /* * Pad outbound frame to ETHER_MIN_NOPAD for an unusual reason. * The bge hardware will pad out Tx runts to ETHER_MIN_NOPAD, * but when such padded frames employ the bge IP/TCP checksum offload, * the hardware checksum assist gives incorrect results (possibly * from incorporating its own padding into the UDP/TCP checksum; who knows). * If we pad such runts with zeros, the onboard checksum comes out correct. */ static __inline int bge_cksum_pad(struct mbuf *m) { int padlen = ETHER_MIN_NOPAD - m->m_pkthdr.len; struct mbuf *last; /* If there's only the packet-header and we can pad there, use it. */ if (m->m_pkthdr.len == m->m_len && M_WRITABLE(m) && M_TRAILINGSPACE(m) >= padlen) { last = m; } else { /* * Walk packet chain to find last mbuf. We will either * pad there, or append a new mbuf and pad it. */ for (last = m; last->m_next != NULL; last = last->m_next); if (!(M_WRITABLE(last) && M_TRAILINGSPACE(last) >= padlen)) { /* Allocate new empty mbuf, pad it. Compact later. */ struct mbuf *n; MGET(n, M_DONTWAIT, MT_DATA); if (n == NULL) return (ENOBUFS); n->m_len = 0; last->m_next = n; last = n; } } /* Now zero the pad area, to avoid the bge cksum-assist bug. */ memset(mtod(last, caddr_t) + last->m_len, 0, padlen); last->m_len += padlen; m->m_pkthdr.len += padlen; return (0); } /* * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data * pointers to descriptors. */ static int bge_encap(struct bge_softc *sc, struct mbuf **m_head, uint32_t *txidx) { bus_dma_segment_t segs[BGE_NSEG_NEW]; bus_dmamap_t map; struct bge_tx_bd *d; struct mbuf *m = *m_head; uint32_t idx = *txidx; uint16_t csum_flags; int nsegs, i, error; csum_flags = 0; if (m->m_pkthdr.csum_flags) { if (m->m_pkthdr.csum_flags & CSUM_IP) csum_flags |= BGE_TXBDFLAG_IP_CSUM; if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) { csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; if (m->m_pkthdr.len < ETHER_MIN_NOPAD && (error = bge_cksum_pad(m)) != 0) { m_freem(m); *m_head = NULL; return (error); } } if (m->m_flags & M_LASTFRAG) csum_flags |= BGE_TXBDFLAG_IP_FRAG_END; else if (m->m_flags & M_FRAG) csum_flags |= BGE_TXBDFLAG_IP_FRAG; } map = sc->bge_cdata.bge_tx_dmamap[idx]; error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag, map, m, segs, &nsegs, BUS_DMA_NOWAIT); if (error == EFBIG) { m = m_defrag(m, M_DONTWAIT); if (m == NULL) { m_freem(*m_head); *m_head = NULL; return (ENOBUFS); } *m_head = m; error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag, map, m, segs, &nsegs, BUS_DMA_NOWAIT); if (error) { m_freem(m); *m_head = NULL; return (error); } } else if (error != 0) return (error); /* * Sanity check: avoid coming within 16 descriptors * of the end of the ring. */ if (nsegs > (BGE_TX_RING_CNT - sc->bge_txcnt - 16)) { bus_dmamap_unload(sc->bge_cdata.bge_mtag, map); return (ENOBUFS); } bus_dmamap_sync(sc->bge_cdata.bge_mtag, map, BUS_DMASYNC_PREWRITE); for (i = 0; ; i++) { d = &sc->bge_ldata.bge_tx_ring[idx]; d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr); d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr); d->bge_len = segs[i].ds_len; d->bge_flags = csum_flags; if (i == nsegs - 1) break; BGE_INC(idx, BGE_TX_RING_CNT); } /* Mark the last segment as end of packet... */ d->bge_flags |= BGE_TXBDFLAG_END; /* ... and put VLAN tag into first segment. */ d = &sc->bge_ldata.bge_tx_ring[*txidx]; if (m->m_flags & M_VLANTAG) { d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; d->bge_vlan_tag = m->m_pkthdr.ether_vtag; } else d->bge_vlan_tag = 0; /* * Insure that the map for this transmission * is placed at the array index of the last descriptor * in this chain. */ sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx]; sc->bge_cdata.bge_tx_dmamap[idx] = map; sc->bge_cdata.bge_tx_chain[idx] = m; sc->bge_txcnt += nsegs; BGE_INC(idx, BGE_TX_RING_CNT); *txidx = idx; return (0); } /* * Main transmit routine. To avoid having to do mbuf copies, we put pointers * to the mbuf data regions directly in the transmit descriptors. */ static void bge_start_locked(struct ifnet *ifp) { struct bge_softc *sc; struct mbuf *m_head = NULL; uint32_t prodidx; int count = 0; sc = ifp->if_softc; if (!sc->bge_link || IFQ_DRV_IS_EMPTY(&ifp->if_snd)) return; prodidx = sc->bge_tx_prodidx; while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); if (m_head == NULL) break; /* * XXX * The code inside the if() block is never reached since we * must mark CSUM_IP_FRAGS in our if_hwassist to start getting * requests to checksum TCP/UDP in a fragmented packet. * * XXX * safety overkill. If this is a fragmented packet chain * with delayed TCP/UDP checksums, then only encapsulate * it if we have enough descriptors to handle the entire * chain at once. * (paranoia -- may not actually be needed) */ if (m_head->m_flags & M_FIRSTFRAG && m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { if ((BGE_TX_RING_CNT - sc->bge_txcnt) < m_head->m_pkthdr.csum_data + 16) { IFQ_DRV_PREPEND(&ifp->if_snd, m_head); ifp->if_drv_flags |= IFF_DRV_OACTIVE; break; } } /* * Pack the data into the transmit ring. If we * don't have room, set the OACTIVE flag and wait * for the NIC to drain the ring. */ if (bge_encap(sc, &m_head, &prodidx)) { if (m_head == NULL) break; IFQ_DRV_PREPEND(&ifp->if_snd, m_head); ifp->if_drv_flags |= IFF_DRV_OACTIVE; break; } ++count; /* * If there's a BPF listener, bounce a copy of this frame * to him. */ BPF_MTAP(ifp, m_head); } if (count == 0) /* No packets were dequeued. */ return; /* Transmit. */ CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); /* 5700 b2 errata */ if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); sc->bge_tx_prodidx = prodidx; /* * Set a timeout in case the chip goes out to lunch. */ sc->bge_timer = 5; } /* * Main transmit routine. To avoid having to do mbuf copies, we put pointers * to the mbuf data regions directly in the transmit descriptors. */ static void bge_start(struct ifnet *ifp) { struct bge_softc *sc; sc = ifp->if_softc; BGE_LOCK(sc); bge_start_locked(ifp); BGE_UNLOCK(sc); } static void bge_init_locked(struct bge_softc *sc) { struct ifnet *ifp; uint16_t *m; BGE_LOCK_ASSERT(sc); ifp = sc->bge_ifp; if (ifp->if_drv_flags & IFF_DRV_RUNNING) return; /* Cancel pending I/O and flush buffers. */ bge_stop(sc); bge_stop_fw(sc); bge_sig_pre_reset(sc, BGE_RESET_START); bge_reset(sc); bge_sig_legacy(sc, BGE_RESET_START); bge_sig_post_reset(sc, BGE_RESET_START); bge_chipinit(sc); /* * Init the various state machines, ring * control blocks and firmware. */ if (bge_blockinit(sc)) { device_printf(sc->bge_dev, "initialization failure\n"); return; } ifp = sc->bge_ifp; /* Specify MTU. */ CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN); /* Load our MAC address. */ m = (uint16_t *)IF_LLADDR(sc->bge_ifp); CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); /* Program promiscuous mode. */ bge_setpromisc(sc); /* Program multicast filter. */ bge_setmulti(sc); /* Init RX ring. */ bge_init_rx_ring_std(sc); /* * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's * memory to insure that the chip has in fact read the first * entry of the ring. */ if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) { uint32_t v, i; for (i = 0; i < 10; i++) { DELAY(20); v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8); if (v == (MCLBYTES - ETHER_ALIGN)) break; } if (i == 10) device_printf (sc->bge_dev, "5705 A0 chip failed to load RX ring\n"); } /* Init jumbo RX ring. */ if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) bge_init_rx_ring_jumbo(sc); /* Init our RX return ring index. */ sc->bge_rx_saved_considx = 0; /* Init our RX/TX stat counters. */ sc->bge_rx_discards = sc->bge_tx_discards = sc->bge_tx_collisions = 0; /* Init TX ring. */ bge_init_tx_ring(sc); /* Turn on transmitter. */ BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE); /* Turn on receiver. */ BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); /* Tell firmware we're alive. */ BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); #ifdef DEVICE_POLLING /* Disable interrupts if we are polling. */ if (ifp->if_capenable & IFCAP_POLLING) { BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1); CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1); } else #endif /* Enable host interrupts. */ { BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); } bge_ifmedia_upd_locked(ifp); ifp->if_drv_flags |= IFF_DRV_RUNNING; ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); } static void bge_init(void *xsc) { struct bge_softc *sc = xsc; BGE_LOCK(sc); bge_init_locked(sc); BGE_UNLOCK(sc); } /* * Set media options. */ static int bge_ifmedia_upd(struct ifnet *ifp) { struct bge_softc *sc = ifp->if_softc; int res; BGE_LOCK(sc); res = bge_ifmedia_upd_locked(ifp); BGE_UNLOCK(sc); return (res); } static int bge_ifmedia_upd_locked(struct ifnet *ifp) { struct bge_softc *sc = ifp->if_softc; struct mii_data *mii; struct ifmedia *ifm; BGE_LOCK_ASSERT(sc); ifm = &sc->bge_ifmedia; /* If this is a 1000baseX NIC, enable the TBI port. */ if (sc->bge_flags & BGE_FLAG_TBI) { if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) return (EINVAL); switch(IFM_SUBTYPE(ifm->ifm_media)) { case IFM_AUTO: /* * The BCM5704 ASIC appears to have a special * mechanism for programming the autoneg * advertisement registers in TBI mode. */ if (bge_fake_autoneg == 0 && sc->bge_asicrev == BGE_ASICREV_BCM5704) { uint32_t sgdig; CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0); sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG); sgdig |= BGE_SGDIGCFG_AUTO| BGE_SGDIGCFG_PAUSE_CAP| BGE_SGDIGCFG_ASYM_PAUSE; CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig|BGE_SGDIGCFG_SEND); DELAY(5); CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig); } break; case IFM_1000_SX: if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); } else { BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); } break; default: return (EINVAL); } return (0); } sc->bge_link_evt++; mii = device_get_softc(sc->bge_miibus); if (mii->mii_instance) { struct mii_softc *miisc; for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL; miisc = LIST_NEXT(miisc, mii_list)) mii_phy_reset(miisc); } mii_mediachg(mii); return (0); } /* * Report current media status. */ static void bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct bge_softc *sc = ifp->if_softc; struct mii_data *mii; BGE_LOCK(sc); if (sc->bge_flags & BGE_FLAG_TBI) { ifmr->ifm_status = IFM_AVALID; ifmr->ifm_active = IFM_ETHER; if (CSR_READ_4(sc, BGE_MAC_STS) & BGE_MACSTAT_TBI_PCS_SYNCHED) ifmr->ifm_status |= IFM_ACTIVE; else { ifmr->ifm_active |= IFM_NONE; BGE_UNLOCK(sc); return; } ifmr->ifm_active |= IFM_1000_SX; if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) ifmr->ifm_active |= IFM_HDX; else ifmr->ifm_active |= IFM_FDX; BGE_UNLOCK(sc); return; } mii = device_get_softc(sc->bge_miibus); mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; BGE_UNLOCK(sc); } static int bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data) { struct bge_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *) data; struct mii_data *mii; int flags, mask, error = 0; switch (command) { case SIOCSIFMTU: if (ifr->ifr_mtu < ETHERMIN || ((BGE_IS_JUMBO_CAPABLE(sc)) && ifr->ifr_mtu > BGE_JUMBO_MTU) || ((!BGE_IS_JUMBO_CAPABLE(sc)) && ifr->ifr_mtu > ETHERMTU)) error = EINVAL; else if (ifp->if_mtu != ifr->ifr_mtu) { ifp->if_mtu = ifr->ifr_mtu; ifp->if_drv_flags &= ~IFF_DRV_RUNNING; bge_init(sc); } break; case SIOCSIFFLAGS: BGE_LOCK(sc); if (ifp->if_flags & IFF_UP) { /* * If only the state of the PROMISC flag changed, * then just use the 'set promisc mode' command * instead of reinitializing the entire NIC. Doing * a full re-init means reloading the firmware and * waiting for it to start up, which may take a * second or two. Similarly for ALLMULTI. */ if (ifp->if_drv_flags & IFF_DRV_RUNNING) { flags = ifp->if_flags ^ sc->bge_if_flags; if (flags & IFF_PROMISC) bge_setpromisc(sc); if (flags & IFF_ALLMULTI) bge_setmulti(sc); } else bge_init_locked(sc); } else { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { bge_stop(sc); } } sc->bge_if_flags = ifp->if_flags; BGE_UNLOCK(sc); error = 0; break; case SIOCADDMULTI: case SIOCDELMULTI: if (ifp->if_drv_flags & IFF_DRV_RUNNING) { BGE_LOCK(sc); bge_setmulti(sc); BGE_UNLOCK(sc); error = 0; } break; case SIOCSIFMEDIA: case SIOCGIFMEDIA: if (sc->bge_flags & BGE_FLAG_TBI) { error = ifmedia_ioctl(ifp, ifr, &sc->bge_ifmedia, command); } else { mii = device_get_softc(sc->bge_miibus); error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); } break; case SIOCSIFCAP: mask = ifr->ifr_reqcap ^ ifp->if_capenable; #ifdef DEVICE_POLLING if (mask & IFCAP_POLLING) { if (ifr->ifr_reqcap & IFCAP_POLLING) { error = ether_poll_register(bge_poll, ifp); if (error) return (error); BGE_LOCK(sc); BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1); CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1); ifp->if_capenable |= IFCAP_POLLING; BGE_UNLOCK(sc); } else { error = ether_poll_deregister(ifp); /* Enable interrupt even in error case */ BGE_LOCK(sc); CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0); CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0); BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); ifp->if_capenable &= ~IFCAP_POLLING; BGE_UNLOCK(sc); } } #endif if (mask & IFCAP_HWCSUM) { ifp->if_capenable ^= IFCAP_HWCSUM; if (IFCAP_HWCSUM & ifp->if_capenable && IFCAP_HWCSUM & ifp->if_capabilities) ifp->if_hwassist = BGE_CSUM_FEATURES; else ifp->if_hwassist = 0; VLAN_CAPABILITIES(ifp); } break; default: error = ether_ioctl(ifp, command, data); break; } return (error); } static void bge_watchdog(struct bge_softc *sc) { struct ifnet *ifp; BGE_LOCK_ASSERT(sc); if (sc->bge_timer == 0 || --sc->bge_timer) return; ifp = sc->bge_ifp; if_printf(ifp, "watchdog timeout -- resetting\n"); ifp->if_drv_flags &= ~IFF_DRV_RUNNING; bge_init_locked(sc); ifp->if_oerrors++; } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ static void bge_stop(struct bge_softc *sc) { struct ifnet *ifp; struct ifmedia_entry *ifm; struct mii_data *mii = NULL; int mtmp, itmp; BGE_LOCK_ASSERT(sc); ifp = sc->bge_ifp; if ((sc->bge_flags & BGE_FLAG_TBI) == 0) mii = device_get_softc(sc->bge_miibus); callout_stop(&sc->bge_stat_ch); /* * Disable all of the receiver blocks. */ BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); if (!(BGE_IS_5705_PLUS(sc))) BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); /* * Disable all of the transmit blocks. */ BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); if (!(BGE_IS_5705_PLUS(sc))) BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); /* * Shut down all of the memory managers and related * state machines. */ BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); if (!(BGE_IS_5705_PLUS(sc))) BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); if (!(BGE_IS_5705_PLUS(sc))) { BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); } /* Disable host interrupts. */ BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); /* * Tell firmware we're shutting down. */ bge_stop_fw(sc); bge_sig_pre_reset(sc, BGE_RESET_STOP); bge_reset(sc); bge_sig_legacy(sc, BGE_RESET_STOP); bge_sig_post_reset(sc, BGE_RESET_STOP); /* * Keep the ASF firmware running if up. */ if (sc->bge_asf_mode & ASF_STACKUP) BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); else BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); /* Free the RX lists. */ bge_free_rx_ring_std(sc); /* Free jumbo RX list. */ if (BGE_IS_JUMBO_CAPABLE(sc)) bge_free_rx_ring_jumbo(sc); /* Free TX buffers. */ bge_free_tx_ring(sc); /* * Isolate/power down the PHY, but leave the media selection * unchanged so that things will be put back to normal when * we bring the interface back up. */ if ((sc->bge_flags & BGE_FLAG_TBI) == 0) { itmp = ifp->if_flags; ifp->if_flags |= IFF_UP; /* * If we are called from bge_detach(), mii is already NULL. */ if (mii != NULL) { ifm = mii->mii_media.ifm_cur; mtmp = ifm->ifm_media; ifm->ifm_media = IFM_ETHER|IFM_NONE; mii_mediachg(mii); ifm->ifm_media = mtmp; } ifp->if_flags = itmp; } sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; /* * We can't just call bge_link_upd() cause chip is almost stopped so * bge_link_upd -> bge_tick_locked -> bge_stats_update sequence may * lead to hardware deadlock. So we just clearing MAC's link state * (PHY may still have link UP). */ if (bootverbose && sc->bge_link) if_printf(sc->bge_ifp, "link DOWN\n"); sc->bge_link = 0; ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ static void bge_shutdown(device_t dev) { struct bge_softc *sc; sc = device_get_softc(dev); BGE_LOCK(sc); bge_stop(sc); bge_reset(sc); BGE_UNLOCK(sc); } static int bge_suspend(device_t dev) { struct bge_softc *sc; sc = device_get_softc(dev); BGE_LOCK(sc); bge_stop(sc); BGE_UNLOCK(sc); return (0); } static int bge_resume(device_t dev) { struct bge_softc *sc; struct ifnet *ifp; sc = device_get_softc(dev); BGE_LOCK(sc); ifp = sc->bge_ifp; if (ifp->if_flags & IFF_UP) { bge_init_locked(sc); if (ifp->if_drv_flags & IFF_DRV_RUNNING) bge_start_locked(ifp); } BGE_UNLOCK(sc); return (0); } static void bge_link_upd(struct bge_softc *sc) { struct mii_data *mii; uint32_t link, status; BGE_LOCK_ASSERT(sc); /* Clear 'pending link event' flag. */ sc->bge_link_evt = 0; /* * Process link state changes. * Grrr. The link status word in the status block does * not work correctly on the BCM5700 rev AX and BX chips, * according to all available information. Hence, we have * to enable MII interrupts in order to properly obtain * async link changes. Unfortunately, this also means that * we have to read the MAC status register to detect link * changes, thereby adding an additional register access to * the interrupt handler. * * XXX: perhaps link state detection procedure used for * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions. */ if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && sc->bge_chipid != BGE_CHIPID_BCM5700_B2) { status = CSR_READ_4(sc, BGE_MAC_STS); if (status & BGE_MACSTAT_MI_INTERRUPT) { callout_stop(&sc->bge_stat_ch); bge_tick(sc); mii = device_get_softc(sc->bge_miibus); if (!sc->bge_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { sc->bge_link++; if (bootverbose) if_printf(sc->bge_ifp, "link UP\n"); } else if (sc->bge_link && (!(mii->mii_media_status & IFM_ACTIVE) || IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { sc->bge_link = 0; if (bootverbose) if_printf(sc->bge_ifp, "link DOWN\n"); } /* Clear the interrupt. */ CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT); bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR); bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS); } return; } if (sc->bge_flags & BGE_FLAG_TBI) { status = CSR_READ_4(sc, BGE_MAC_STS); if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) { if (!sc->bge_link) { sc->bge_link++; if (sc->bge_asicrev == BGE_ASICREV_BCM5704) BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_TBI_SEND_CFGS); CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); if (bootverbose) if_printf(sc->bge_ifp, "link UP\n"); if_link_state_change(sc->bge_ifp, LINK_STATE_UP); } } else if (sc->bge_link) { sc->bge_link = 0; if (bootverbose) if_printf(sc->bge_ifp, "link DOWN\n"); if_link_state_change(sc->bge_ifp, LINK_STATE_DOWN); } /* Discard link events for MII/GMII cards if MI auto-polling disabled */ } else if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) { /* * Some broken BCM chips have BGE_STATFLAG_LINKSTATE_CHANGED bit * in status word always set. Workaround this bug by reading * PHY link status directly. */ link = (CSR_READ_4(sc, BGE_MI_STS) & BGE_MISTS_LINK) ? 1 : 0; if (link != sc->bge_link || sc->bge_asicrev == BGE_ASICREV_BCM5700) { callout_stop(&sc->bge_stat_ch); bge_tick(sc); mii = device_get_softc(sc->bge_miibus); if (!sc->bge_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { sc->bge_link++; if (bootverbose) if_printf(sc->bge_ifp, "link UP\n"); } else if (sc->bge_link && (!(mii->mii_media_status & IFM_ACTIVE) || IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { sc->bge_link = 0; if (bootverbose) if_printf(sc->bge_ifp, "link DOWN\n"); } } } /* Clear the attention. */ CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| BGE_MACSTAT_LINK_CHANGED); } static void bge_add_sysctls(struct bge_softc *sc) { struct sysctl_ctx_list *ctx; struct sysctl_oid_list *children; ctx = device_get_sysctl_ctx(sc->bge_dev); children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->bge_dev)); #ifdef BGE_REGISTER_DEBUG SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "debug_info", CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_debug_info, "I", "Debug Information"); SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reg_read", CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_reg_read, "I", "Register Read"); SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mem_read", CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_mem_read, "I", "Memory Read"); SYSCTL_ADD_ULONG(ctx, children, OID_AUTO, "stat_IfHcInOctets", CTLFLAG_RD, &sc->bge_ldata.bge_stats->rxstats.ifHCInOctets.bge_addr_lo, "Bytes received"); SYSCTL_ADD_ULONG(ctx, children, OID_AUTO, "stat_IfHcOutOctets", CTLFLAG_RD, &sc->bge_ldata.bge_stats->txstats.ifHCOutOctets.bge_addr_lo, "Bytes received"); #endif } #ifdef BGE_REGISTER_DEBUG static int bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS) { struct bge_softc *sc; uint16_t *sbdata; int error; int result; int i, j; result = -1; error = sysctl_handle_int(oidp, &result, 0, req); if (error || (req->newptr == NULL)) return (error); if (result == 1) { sc = (struct bge_softc *)arg1; sbdata = (uint16_t *)sc->bge_ldata.bge_status_block; printf("Status Block:\n"); for (i = 0x0; i < (BGE_STATUS_BLK_SZ / 4); ) { printf("%06x:", i); for (j = 0; j < 8; j++) { printf(" %04x", sbdata[i]); i += 4; } printf("\n"); } printf("Registers:\n"); for (i = 0x800; i < 0xa00; ) { printf("%06x:", i); for (j = 0; j < 8; j++) { printf(" %08x", CSR_READ_4(sc, i)); i += 4; } printf("\n"); } printf("Hardware Flags:\n"); if (BGE_IS_575X_PLUS(sc)) printf(" - 575X Plus\n"); if (BGE_IS_5705_PLUS(sc)) printf(" - 5705 Plus\n"); if (BGE_IS_5714_FAMILY(sc)) printf(" - 5714 Family\n"); if (BGE_IS_5700_FAMILY(sc)) printf(" - 5700 Family\n"); if (sc->bge_flags & BGE_FLAG_JUMBO) printf(" - Supports Jumbo Frames\n"); if (sc->bge_flags & BGE_FLAG_PCIX) printf(" - PCI-X Bus\n"); if (sc->bge_flags & BGE_FLAG_PCIE) printf(" - PCI Express Bus\n"); if (sc->bge_flags & BGE_FLAG_NO3LED) printf(" - No 3 LEDs\n"); if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) printf(" - RX Alignment Bug\n"); } return (error); } static int bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS) { struct bge_softc *sc; int error; uint16_t result; uint32_t val; result = -1; error = sysctl_handle_int(oidp, &result, 0, req); if (error || (req->newptr == NULL)) return (error); if (result < 0x8000) { sc = (struct bge_softc *)arg1; val = CSR_READ_4(sc, result); printf("reg 0x%06X = 0x%08X\n", result, val); } return (error); } static int bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS) { struct bge_softc *sc; int error; uint16_t result; uint32_t val; result = -1; error = sysctl_handle_int(oidp, &result, 0, req); if (error || (req->newptr == NULL)) return (error); if (result < 0x8000) { sc = (struct bge_softc *)arg1; val = bge_readmem_ind(sc, result); printf("mem 0x%06X = 0x%08X\n", result, val); } return (error); } #endif