/* $NetBSD: if_bge.c,v 1.12 2002/06/28 18:46:46 thorpej Exp $ */ /* * 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. * * $FreeBSD: if_bge.c,v 1.13 2002/04/04 06:01:31 wpaul Exp $ */ /* * Broadcom BCM570x family gigabit ethernet driver for NetBSD. * * NetBSD version by: * * Frank van der Linden * Jason Thorpe * * Originally written for FreeBSD by Bill Paul * Senior Engineer, Wind River Systems */ /* * 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 BCM5700 * 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. */ #include "bpfilter.h" #include "vlan.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #include #include #endif #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include #include /* #define BGE_CHECKSUM */ int bge_probe(struct device *, struct cfdata *, void *); void bge_attach(struct device *, struct device *, void *); void bge_release_resources(struct bge_softc *); void bge_txeof(struct bge_softc *); void bge_rxeof(struct bge_softc *); void bge_tick(void *); void bge_stats_update(struct bge_softc *); int bge_encap(struct bge_softc *, struct mbuf *, u_int32_t *); int bge_intr(void *); void bge_start(struct ifnet *); int bge_ioctl(struct ifnet *, u_long, caddr_t); int bge_init(struct ifnet *); void bge_stop(struct bge_softc *); void bge_watchdog(struct ifnet *); void bge_shutdown(void *); int bge_ifmedia_upd(struct ifnet *); void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); u_int8_t bge_eeprom_getbyte(struct bge_softc *, int, u_int8_t *); int bge_read_eeprom(struct bge_softc *, caddr_t, int, int); u_int32_t bge_crc(struct bge_softc *, caddr_t); void bge_setmulti(struct bge_softc *); void bge_handle_events(struct bge_softc *); int bge_alloc_jumbo_mem(struct bge_softc *); void bge_free_jumbo_mem(struct bge_softc *); void *bge_jalloc(struct bge_softc *); void bge_jfree(struct mbuf *, caddr_t, u_int, void *); int bge_newbuf_std(struct bge_softc *, int, struct mbuf *, bus_dmamap_t); int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); int bge_init_rx_ring_std(struct bge_softc *); void bge_free_rx_ring_std(struct bge_softc *); int bge_init_rx_ring_jumbo(struct bge_softc *); void bge_free_rx_ring_jumbo(struct bge_softc *); void bge_free_tx_ring(struct bge_softc *); int bge_init_tx_ring(struct bge_softc *); int bge_chipinit(struct bge_softc *); int bge_blockinit(struct bge_softc *); #ifdef notdef u_int8_t bge_vpd_readbyte(struct bge_softc *, int); void bge_vpd_read_res(struct bge_softc *, struct vpd_res *, int); void bge_vpd_read(struct bge_softc *); #endif u_int32_t bge_readmem_ind(struct bge_softc *, int); void bge_writemem_ind(struct bge_softc *, int, int); #ifdef notdef u_int32_t bge_readreg_ind(struct bge_softc *, int); #endif void bge_writereg_ind(struct bge_softc *, int, int); int bge_miibus_readreg(struct device *, int, int); void bge_miibus_writereg(struct device *, int, int, int); void bge_miibus_statchg(struct device *); void bge_reset(struct bge_softc *); void bge_phy_hack(struct bge_softc *); void bge_dump_status(struct bge_softc *); void bge_dump_rxbd(struct bge_rx_bd *); #define BGE_DEBUG #ifdef BGE_DEBUG #define DPRINTF(x) if (bgedebug) printf x #define DPRINTFN(n,x) if (bgedebug >= (n)) printf x int bgedebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif struct cfattach bge_ca = { sizeof(struct bge_softc), bge_probe, bge_attach }; u_int32_t bge_readmem_ind(sc, off) struct bge_softc *sc; int off; { struct pci_attach_args *pa = &(sc->bge_pa); pcireg_t val; pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA); return val; } void bge_writemem_ind(sc, off, val) struct bge_softc *sc; int off, val; { struct pci_attach_args *pa = &(sc->bge_pa); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA, val); } #ifdef notdef u_int32_t bge_readreg_ind(sc, off) struct bge_softc *sc; int off; { struct pci_attach_args *pa = &(sc->bge_pa); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); return(pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA)); } #endif void bge_writereg_ind(sc, off, val) struct bge_softc *sc; int off, val; { struct pci_attach_args *pa = &(sc->bge_pa); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA, val); } #ifdef notdef u_int8_t bge_vpd_readbyte(sc, addr) struct bge_softc *sc; int addr; { int i; u_int32_t val; struct pci_attach_args *pa = &(sc->bge_pa); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR, addr); for (i = 0; i < BGE_TIMEOUT * 10; i++) { DELAY(10); if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR) & BGE_VPD_FLAG) break; } if (i == BGE_TIMEOUT) { printf("%s: VPD read timed out\n", sc->bge_dev.dv_xname); return(0); } val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_DATA); return((val >> ((addr % 4) * 8)) & 0xFF); } void bge_vpd_read_res(sc, res, addr) struct bge_softc *sc; struct vpd_res *res; int addr; { int i; u_int8_t *ptr; ptr = (u_int8_t *)res; for (i = 0; i < sizeof(struct vpd_res); i++) ptr[i] = bge_vpd_readbyte(sc, i + addr); } void bge_vpd_read(sc) struct bge_softc *sc; { int pos = 0, i; struct vpd_res res; 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); sc->bge_vpd_prodname = NULL; sc->bge_vpd_readonly = NULL; bge_vpd_read_res(sc, &res, pos); if (res.vr_id != VPD_RES_ID) { printf("%s: bad VPD resource id: expected %x got %x\n", sc->bge_dev.dv_xname, VPD_RES_ID, res.vr_id); return; } pos += sizeof(res); sc->bge_vpd_prodname = malloc(res.vr_len + 1, M_DEVBUF, M_NOWAIT); if (sc->bge_vpd_prodname == NULL) panic("bge_vpd_read"); for (i = 0; i < res.vr_len; i++) sc->bge_vpd_prodname[i] = bge_vpd_readbyte(sc, i + pos); sc->bge_vpd_prodname[i] = '\0'; pos += i; bge_vpd_read_res(sc, &res, pos); if (res.vr_id != VPD_RES_READ) { printf("%s: bad VPD resource id: expected %x got %x\n", sc->bge_dev.dv_xname, VPD_RES_READ, res.vr_id); return; } pos += sizeof(res); sc->bge_vpd_readonly = malloc(res.vr_len, M_DEVBUF, M_NOWAIT); if (sc->bge_vpd_readonly == NULL) panic("bge_vpd_read"); for (i = 0; i < res.vr_len + 1; i++) sc->bge_vpd_readonly[i] = bge_vpd_readbyte(sc, i + pos); } #endif /* * 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. */ u_int8_t bge_eeprom_getbyte(sc, addr, dest) struct bge_softc *sc; int addr; u_int8_t *dest; { int i; u_int32_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) { printf("%s: eeprom read timed out\n", sc->bge_dev.dv_xname); return(0); } /* 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. */ int bge_read_eeprom(sc, dest, off, cnt) struct bge_softc *sc; caddr_t dest; int off; int cnt; { int err = 0, i; u_int8_t byte = 0; for (i = 0; i < cnt; i++) { err = bge_eeprom_getbyte(sc, off + i, &byte); if (err) break; *(dest + i) = byte; } return(err ? 1 : 0); } int bge_miibus_readreg(dev, phy, reg) struct device *dev; int phy, reg; { struct bge_softc *sc = (struct bge_softc *)dev; struct ifnet *ifp; u_int32_t val; int i; ifp = &sc->ethercom.ec_if; if (sc->bge_asicrev == BGE_ASICREV_BCM5701_B5 && phy != 1) return(0); 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; delay(10); } if (i == BGE_TIMEOUT) { printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); return(0); } val = CSR_READ_4(sc, BGE_MI_COMM); if (val & BGE_MICOMM_READFAIL) return(0); return(val & 0xFFFF); } void bge_miibus_writereg(dev, phy, reg, val) struct device *dev; int phy, reg, val; { struct bge_softc *sc = (struct bge_softc *)dev; int i; 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; delay(10); } if (i == BGE_TIMEOUT) { printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); } } void bge_miibus_statchg(dev) struct device *dev; { struct bge_softc *sc = (struct bge_softc *)dev; struct mii_data *mii = &sc->bge_mii; 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); } bge_phy_hack(sc); } /* * Handle events that have triggered interrupts. */ void bge_handle_events(sc) struct bge_softc *sc; { return; } /* * Memory management for jumbo frames. */ int bge_alloc_jumbo_mem(sc) struct bge_softc *sc; { caddr_t ptr, kva; bus_dma_segment_t seg; int i, rseg, state, error; struct bge_jpool_entry *entry; state = error = 0; /* Grab a big chunk o' storage. */ if (bus_dmamem_alloc(sc->bge_dmatag, BGE_JMEM, PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname); return ENOBUFS; } state = 1; if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, BGE_JMEM, &kva, BUS_DMA_NOWAIT)) { printf("%s: can't map dma buffers (%d bytes)\n", sc->bge_dev.dv_xname, (int)BGE_JMEM); error = ENOBUFS; goto out; } state = 2; if (bus_dmamap_create(sc->bge_dmatag, BGE_JMEM, 1, BGE_JMEM, 0, BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_jumbo_map)) { printf("%s: can't create dma map\n", sc->bge_dev.dv_xname); error = ENOBUFS; goto out; } state = 3; if (bus_dmamap_load(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map, kva, BGE_JMEM, NULL, BUS_DMA_NOWAIT)) { printf("%s: can't load dma map\n", sc->bge_dev.dv_xname); error = ENOBUFS; goto out; } state = 4; sc->bge_cdata.bge_jumbo_buf = (caddr_t)kva; DPRINTFN(1,("bge_jumbo_buf = 0x%p\n", sc->bge_cdata.bge_jumbo_buf)); SLIST_INIT(&sc->bge_jfree_listhead); SLIST_INIT(&sc->bge_jinuse_listhead); /* * Now divide it up into 9K pieces and save the addresses * in an array. */ ptr = sc->bge_cdata.bge_jumbo_buf; for (i = 0; i < BGE_JSLOTS; i++) { sc->bge_cdata.bge_jslots[i] = ptr; ptr += BGE_JLEN; entry = malloc(sizeof(struct bge_jpool_entry), M_DEVBUF, M_NOWAIT); if (entry == NULL) { printf("%s: no memory for jumbo buffer queue!\n", sc->bge_dev.dv_xname); error = ENOBUFS; goto out; } entry->slot = i; SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jpool_entries); } out: if (error != 0) { switch (state) { case 4: bus_dmamap_unload(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map); case 3: bus_dmamap_destroy(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map); case 2: bus_dmamem_unmap(sc->bge_dmatag, kva, BGE_JMEM); case 1: bus_dmamem_free(sc->bge_dmatag, &seg, rseg); break; default: break; } } return error; } /* * Allocate a jumbo buffer. */ void * bge_jalloc(sc) struct bge_softc *sc; { struct bge_jpool_entry *entry; entry = SLIST_FIRST(&sc->bge_jfree_listhead); if (entry == NULL) { printf("%s: no free jumbo buffers\n", sc->bge_dev.dv_xname); return(NULL); } SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries); SLIST_INSERT_HEAD(&sc->bge_jinuse_listhead, entry, jpool_entries); return(sc->bge_cdata.bge_jslots[entry->slot]); } /* * Release a jumbo buffer. */ void bge_jfree(m, buf, size, arg) struct mbuf *m; caddr_t buf; u_int size; void *arg; { struct bge_jpool_entry *entry; struct bge_softc *sc; int i, s; /* Extract the softc struct pointer. */ sc = (struct bge_softc *)arg; if (sc == NULL) panic("bge_jfree: can't find softc pointer!"); /* calculate the slot this buffer belongs to */ i = ((caddr_t)buf - (caddr_t)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN; if ((i < 0) || (i >= BGE_JSLOTS)) panic("bge_jfree: asked to free buffer that we don't manage!"); s = splvm(); entry = SLIST_FIRST(&sc->bge_jinuse_listhead); if (entry == NULL) panic("bge_jfree: buffer not in use!"); entry->slot = i; SLIST_REMOVE_HEAD(&sc->bge_jinuse_listhead, jpool_entries); SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jpool_entries); if (__predict_true(m != NULL)) pool_cache_put(&mbpool_cache, m); splx(s); } /* * Intialize a standard receive ring descriptor. */ int bge_newbuf_std(sc, i, m, dmamap) struct bge_softc *sc; int i; struct mbuf *m; bus_dmamap_t dmamap; { struct mbuf *m_new = NULL; struct bge_rx_bd *r; int error; if (dmamap == NULL) { error = bus_dmamap_create(sc->bge_dmatag, MCLBYTES, 1, MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap); if (error != 0) return error; } sc->bge_cdata.bge_rx_std_map[i] = dmamap; if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { return(ENOBUFS); } MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { m_freem(m_new); return(ENOBUFS); } m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_adj(m_new, ETHER_ALIGN); if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_new, BUS_DMA_READ|BUS_DMA_NOWAIT)) return(ENOBUFS); } else { m_new = m; m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_new->m_data = m_new->m_ext.ext_buf; m_adj(m_new, ETHER_ALIGN); } sc->bge_cdata.bge_rx_std_chain[i] = m_new; r = &sc->bge_rdata->bge_rx_std_ring[i]; bge_set_hostaddr(&r->bge_addr, dmamap->dm_segs[0].ds_addr); r->bge_flags = BGE_RXBDFLAG_END; r->bge_len = m_new->m_len; r->bge_idx = i; bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offsetof(struct bge_ring_data, bge_rx_std_ring) + i * sizeof (struct bge_rx_bd), sizeof (struct bge_rx_bd), BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); return(0); } /* * Initialize a jumbo receive ring descriptor. This allocates * a jumbo buffer from the pool managed internally by the driver. */ int bge_newbuf_jumbo(sc, i, m) struct bge_softc *sc; int i; struct mbuf *m; { struct mbuf *m_new = NULL; struct bge_rx_bd *r; if (m == NULL) { caddr_t *buf = NULL; /* Allocate the mbuf. */ MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { return(ENOBUFS); } /* Allocate the jumbo buffer */ buf = bge_jalloc(sc); if (buf == NULL) { m_freem(m_new); printf("%s: jumbo allocation failed " "-- packet dropped!\n", sc->bge_dev.dv_xname); return(ENOBUFS); } /* Attach the buffer to the mbuf. */ m_new->m_len = m_new->m_pkthdr.len = BGE_JUMBO_FRAMELEN; MEXTADD(m_new, buf, BGE_JUMBO_FRAMELEN, M_DEVBUF, bge_jfree, sc); } else { m_new = m; m_new->m_data = m_new->m_ext.ext_buf; m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN; } m_adj(m_new, ETHER_ALIGN); /* Set up the descriptor. */ r = &sc->bge_rdata->bge_rx_jumbo_ring[i]; sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; bge_set_hostaddr(&r->bge_addr, BGE_JUMBO_DMA_ADDR(sc, m_new)); r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING; r->bge_len = m_new->m_len; r->bge_idx = i; bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offsetof(struct bge_ring_data, bge_rx_jumbo_ring) + i * sizeof (struct bge_rx_bd), sizeof (struct bge_rx_bd), BUS_DMASYNC_PREWRITE|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. */ int bge_init_rx_ring_std(sc) struct bge_softc *sc; { int i; if (sc->bge_flags & BGE_RXRING_VALID) return 0; for (i = 0; i < BGE_SSLOTS; i++) { if (bge_newbuf_std(sc, i, NULL, 0) == ENOBUFS) return(ENOBUFS); } sc->bge_std = i - 1; CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); sc->bge_flags |= BGE_RXRING_VALID; return(0); } void bge_free_rx_ring_std(sc) struct bge_softc *sc; { int i; if (!(sc->bge_flags & BGE_RXRING_VALID)) return; for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { m_freem(sc->bge_cdata.bge_rx_std_chain[i]); sc->bge_cdata.bge_rx_std_chain[i] = NULL; bus_dmamap_destroy(sc->bge_dmatag, sc->bge_cdata.bge_rx_std_map[i]); } memset((char *)&sc->bge_rdata->bge_rx_std_ring[i], 0, sizeof(struct bge_rx_bd)); } sc->bge_flags &= ~BGE_RXRING_VALID; } int bge_init_rx_ring_jumbo(sc) struct bge_softc *sc; { int i; struct bge_rcb *rcb; struct bge_rcb_opaque *rcbo; for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) return(ENOBUFS); }; sc->bge_jumbo = i - 1; rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; rcbo = (struct bge_rcb_opaque *)rcb; rcb->bge_flags = 0; CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); return(0); } void bge_free_rx_ring_jumbo(sc) struct bge_softc *sc; { int i; if (!(sc->bge_flags & BGE_JUMBO_RXRING_VALID)) return; for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; } memset((char *)&sc->bge_rdata->bge_rx_jumbo_ring[i], 0, sizeof(struct bge_rx_bd)); } sc->bge_flags &= ~BGE_JUMBO_RXRING_VALID; } void bge_free_tx_ring(sc) struct bge_softc *sc; { int i, freed; struct txdmamap_pool_entry *dma; if (!(sc->bge_flags & BGE_TXRING_VALID)) return; freed = 0; for (i = 0; i < BGE_TX_RING_CNT; i++) { if (sc->bge_cdata.bge_tx_chain[i] != NULL) { freed++; m_freem(sc->bge_cdata.bge_tx_chain[i]); sc->bge_cdata.bge_tx_chain[i] = NULL; SLIST_INSERT_HEAD(&sc->txdma_list, sc->txdma[i], link); sc->txdma[i] = 0; } memset((char *)&sc->bge_rdata->bge_tx_ring[i], 0, sizeof(struct bge_tx_bd)); } while ((dma = SLIST_FIRST(&sc->txdma_list))) { SLIST_REMOVE_HEAD(&sc->txdma_list, link); bus_dmamap_destroy(sc->bge_dmatag, dma->dmamap); free(dma, M_DEVBUF); } sc->bge_flags &= ~BGE_TXRING_VALID; } int bge_init_tx_ring(sc) struct bge_softc *sc; { int i; bus_dmamap_t dmamap; struct txdmamap_pool_entry *dma; if (sc->bge_flags & BGE_TXRING_VALID) return 0; sc->bge_txcnt = 0; sc->bge_tx_saved_considx = 0; CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0); CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); SLIST_INIT(&sc->txdma_list); for (i = 0; i < BGE_RSLOTS; i++) { if (bus_dmamap_create(sc->bge_dmatag, ETHER_MAX_LEN_JUMBO, BGE_NTXSEG, ETHER_MAX_LEN_JUMBO, 0, BUS_DMA_NOWAIT, &dmamap)) return(ENOBUFS); if (dmamap == NULL) panic("dmamap NULL in bge_init_tx_ring"); dma = malloc(sizeof(*dma), M_DEVBUF, M_NOWAIT); if (dma == NULL) { printf("%s: can't alloc txdmamap_pool_entry\n", sc->bge_dev.dv_xname); bus_dmamap_destroy(sc->bge_dmatag, dmamap); return (ENOMEM); } dma->dmamap = dmamap; SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); } sc->bge_flags |= BGE_TXRING_VALID; return(0); } #define BGE_POLY 0xEDB88320 u_int32_t bge_crc(sc, addr) struct bge_softc *sc; caddr_t addr; { u_int32_t idx, bit, data, crc; /* Compute CRC for the address value. */ crc = 0xFFFFFFFF; /* initial value */ for (idx = 0; idx < 6; idx++) { for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) crc = (crc >> 1) ^ (((crc ^ data) & 1) ? BGE_POLY : 0); } return(crc & 0x7F); } void bge_setmulti(sc) struct bge_softc *sc; { struct ethercom *ac = &sc->ethercom; struct ifnet *ifp = &ac->ec_if; struct ether_multi *enm; struct ether_multistep step; u_int32_t hashes[4] = { 0, 0, 0, 0 }; u_int32_t h; int i; 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. */ ETHER_FIRST_MULTI(step, ac, enm); while (enm != NULL) { h = bge_crc(sc, LLADDR((struct sockaddr_dl *)enm->enm_addrlo)); hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); ETHER_NEXT_MULTI(step, enm); } for (i = 0; i < 4; i++) CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); } int bge_swapbits[] = { 0, BGE_MODECTL_BYTESWAP_DATA, BGE_MODECTL_WORDSWAP_DATA, BGE_MODECTL_BYTESWAP_NONFRAME, BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| BGE_MODECTL_BYTESWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| BGE_MODECTL_WORDSWAP_NONFRAME, BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, }; int bge_swapindex = 0; /* * Do endian, PCI and DMA initialization. Also check the on-board ROM * self-test results. */ int bge_chipinit(sc) struct bge_softc *sc; { u_int32_t cachesize; int i; struct pci_attach_args *pa = &(sc->bge_pa); /* Set endianness before we access any non-PCI registers. */ pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, BGE_INIT); /* * 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) { printf("%s: RX CPU self-diagnostics failed!\n", sc->bge_dev.dv_xname); 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(u_int32_t)) BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); for (i = BGE_STATUS_BLOCK; i < BGE_STATUS_BLOCK_END + 1; i += sizeof(u_int32_t)) BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); /* Set up the PCI DMA control register. */ pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD|0x0F); /* * 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_NO_RX_CRC|BGE_MODECTL_TX_NO_PHDR_CSUM| BGE_MODECTL_RX_NO_PHDR_CSUM); /* Get cache line size. */ cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); /* * Avoid violating PCI spec on certain chip revs. */ if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD) & PCIM_CMD_MWIEN) { switch(cachesize) { case 1: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_16BYTES); break; case 2: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_32BYTES); break; case 4: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_64BYTES); break; case 8: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_128BYTES); break; case 16: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_256BYTES); break; case 32: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_512BYTES); break; case 64: PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, BGE_PCI_WRITE_BNDRY_1024BYTES); break; default: /* Disable PCI memory write and invalidate. */ #if 0 if (bootverbose) printf("%s: cache line size %d not " "supported; disabling PCI MWI\n", sc->bge_dev.dv_xname, cachesize); #endif PCI_CLRBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, PCIM_CMD_MWIEN); break; } } #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_PCI_DMA_RW_CTL, BGE_PCI_READ_BNDRY_1024, 4); #endif /* Set the timer prescaler (always 66Mhz) */ CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); return(0); } int bge_blockinit(sc) struct bge_softc *sc; { struct bge_rcb *rcb; struct bge_rcb_opaque *rcbo; bus_size_t rcb_addr; int i; struct ifnet *ifp = &sc->ethercom.ec_if; bge_hostaddr taddr; /* * 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. */ pci_conf_write(sc->bge_pa.pa_pc, sc->bge_pa.pa_tag, BGE_PCI_MEMWIN_BASEADDR, 0); /* Configure mbuf memory pool */ if (sc->bge_extram) { CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_EXT_SSRAM); CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); } else { CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1); 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 */ CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 24); CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 24); CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 48); /* 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 */ 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) { printf("%s: buffer manager failed to start\n", sc->bge_dev.dv_xname); 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) { printf("%s: flow-through queue init failed\n", sc->bge_dev.dv_xname); return(ENXIO); } /* Initialize the standard RX ring control block */ rcb = &sc->bge_rdata->bge_info.bge_std_rx_rcb; bge_set_hostaddr(&rcb->bge_hostaddr, BGE_RING_DMA_ADDR(sc, bge_rx_std_ring)); rcb->bge_max_len = BGE_MAX_FRAMELEN; if (sc->bge_extram) rcb->bge_nicaddr = BGE_EXT_STD_RX_RINGS; else rcb->bge_nicaddr = BGE_STD_RX_RINGS; rcb->bge_flags = 0; rcbo = (struct bge_rcb_opaque *)rcb; CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcbo->bge_reg0); CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcbo->bge_reg1); CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcbo->bge_reg3); /* * 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). */ rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; bge_set_hostaddr(&rcb->bge_hostaddr, BGE_RING_DMA_ADDR(sc, bge_rx_jumbo_ring)); rcb->bge_max_len = BGE_MAX_FRAMELEN; if (sc->bge_extram) rcb->bge_nicaddr = BGE_EXT_JUMBO_RX_RINGS; else rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; rcb->bge_flags = BGE_RCB_FLAG_RING_DISABLED; rcbo = (struct bge_rcb_opaque *)rcb; CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, rcbo->bge_reg0); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, rcbo->bge_reg1); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcbo->bge_reg3); /* Set up dummy disabled mini ring RCB */ rcb = &sc->bge_rdata->bge_info.bge_mini_rx_rcb; rcb->bge_flags = BGE_RCB_FLAG_RING_DISABLED; rcbo = (struct bge_rcb_opaque *)rcb; CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offsetof(struct bge_ring_data, bge_info), sizeof (struct bge_gib), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); /* * Set the BD ring replentish thresholds. The recommended * values are 1/8th the number of descriptors allocated to * each ring. */ CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, BGE_STD_RX_RING_CNT/8); 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. */ rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { RCB_WRITE_2(sc, rcb_addr, bge_flags, BGE_RCB_FLAG_RING_DISABLED); RCB_WRITE_2(sc, rcb_addr, bge_max_len, 0); RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); rcb_addr += sizeof(struct bge_rcb); } /* Configure TX RCB 0 (we use only the first ring) */ rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_tx_ring)); RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_TX_RING_CNT); RCB_WRITE_2(sc, rcb_addr, bge_flags, 0); /* Disable all unused RX return rings */ rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; for (i = 0; i < BGE_RX_RINGS_MAX; i++) { RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, 0); RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, 0); RCB_WRITE_2(sc, rcb_addr, bge_flags, BGE_RCB_FLAG_RING_DISABLED); RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_RETURN_RING_CNT); RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + (i * (sizeof(u_int64_t))), 0); rcb_addr += 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. */ rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_rx_return_ring)); RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0x00000000); RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_RETURN_RING_CNT); RCB_WRITE_2(sc, rcb_addr, bge_flags, 0); /* Set random backoff seed for TX */ CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, LLADDR(ifp->if_sadl)[0] + LLADDR(ifp->if_sadl)[1] + LLADDR(ifp->if_sadl)[2] + LLADDR(ifp->if_sadl)[3] + LLADDR(ifp->if_sadl)[4] + LLADDR(ifp->if_sadl)[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) { printf("%s: host coalescing engine failed to idle\n", sc->bge_dev.dv_xname); 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); 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); CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); /* Set up address of statistics block */ bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_info.bge_stats)); CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, taddr.bge_addr_hi); CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, taddr.bge_addr_lo); /* Set up address of status block */ bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_status_block)); CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, taddr.bge_addr_hi); CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, taddr.bge_addr_lo); sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx = 0; sc->bge_rdata->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. */ 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_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 */ CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); /* Turn on write DMA state machine */ CSR_WRITE_4(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS); /* 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 */ 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); /* init LED register */ CSR_WRITE_4(sc, BGE_MAC_LED_CTL, 0x00000000); /* ack/clear link change events */ CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| BGE_MACSTAT_CFG_CHANGED); CSR_WRITE_4(sc, BGE_MI_STS, 0); /* Enable PHY auto polling (for MII/GMII only) */ if (sc->bge_tbi) { CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); } else { BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); if (BGE_IS_5700_Ax_Bx(sc->bge_asicrev)) CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT); } /* Enable link state change attentions. */ BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); return(0); } static const struct bge_product { pci_vendor_id_t bp_vendor; pci_product_id_t bp_product; const char *bp_name; } bge_products[] = { /* * The BCM5700 documentation seems to indicate that the hardware * still has the Alteon vendor ID burned into it, though it * should always be overridden by the value in the EEPROM. We'll * check for it anyway. */ { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700, "Broadcom BCM5700 Gigabit Ethernet" }, { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5701, "Broadcom BCM5701 Gigabit Ethernet" }, { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000, "Altima AC1000 Gigabit Ethernet" }, { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100, "Altima AC9100 Gigabit Ethernet" }, { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700, "Broadcom BCM5700 Gigabit Ethernet" }, { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701, "Broadcom BCM5700 Gigabit Ethernet" }, { PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1, "SysKonnect SK-9Dx1 Gigabit Ethernet" }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C996, "3Com 3c996 Gigabit Ethernet" }, { 0, 0, NULL }, }; static const struct bge_product * bge_lookup(const struct pci_attach_args *pa) { const struct bge_product *bp; for (bp = bge_products; bp->bp_name != NULL; bp++) { if (PCI_VENDOR(pa->pa_id) == bp->bp_vendor && PCI_PRODUCT(pa->pa_id) == bp->bp_product) return (bp); } 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. */ int bge_probe(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct pci_attach_args *pa = (struct pci_attach_args *)aux; if (bge_lookup(pa) != NULL) return (1); return (0); } void bge_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct bge_softc *sc = (struct bge_softc *)self; struct pci_attach_args *pa = aux; const struct bge_product *bp; pci_chipset_tag_t pc = pa->pa_pc; pci_intr_handle_t ih; const char *intrstr = NULL; bus_dma_segment_t seg; int rseg; u_int32_t hwcfg = 0; u_int32_t command; struct ifnet *ifp; int unit; caddr_t kva; u_char eaddr[ETHER_ADDR_LEN]; pcireg_t memtype; bus_addr_t memaddr; bus_size_t memsize; bp = bge_lookup(pa); KASSERT(bp != NULL); sc->bge_pa = *pa; printf(": %s, rev. 0x%02x\n", bp->bp_name, PCI_REVISION(pa->pa_class)); /* * Map control/status registers. */ DPRINTFN(5, ("Map control/status regs\n")); command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); if (!(command & PCI_COMMAND_MEM_ENABLE)) { printf("%s: failed to enable memory mapping!\n", sc->bge_dev.dv_xname); return; } DPRINTFN(5, ("pci_mem_find\n")); memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BGE_PCI_BAR0); switch (memtype) { case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: if (pci_mapreg_map(pa, BGE_PCI_BAR0, memtype, 0, &sc->bge_btag, &sc->bge_bhandle, &memaddr, &memsize) == 0) break; default: printf("%s: can't find mem space\n", sc->bge_dev.dv_xname); return; } DPRINTFN(5, ("pci_intr_map\n")); if (pci_intr_map(pa, &ih)) { printf("%s: couldn't map interrupt\n", sc->bge_dev.dv_xname); return; } DPRINTFN(5, ("pci_intr_string\n")); intrstr = pci_intr_string(pc, ih); DPRINTFN(5, ("pci_intr_establish\n")); sc->bge_intrhand = pci_intr_establish(pc, ih, IPL_NET, bge_intr, sc); if (sc->bge_intrhand == NULL) { printf("%s: couldn't establish interrupt", sc->bge_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf("%s: interrupting at %s\n", sc->bge_dev.dv_xname, intrstr); /* Try to reset the chip. */ DPRINTFN(5, ("bge_reset\n")); bge_reset(sc); if (bge_chipinit(sc)) { printf("%s: chip initializatino failed\n", sc->bge_dev.dv_xname); bge_release_resources(sc); return; } /* * Get station address from the EEPROM. */ if (bge_read_eeprom(sc, (caddr_t)eaddr, BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { printf("bge%d: failed to read station address\n", unit); bge_release_resources(sc); return; } /* * A Broadcom chip was detected. Inform the world. */ printf("%s: Ethernet address %s\n", sc->bge_dev.dv_xname, ether_sprintf(eaddr)); /* Allocate the general information block and ring buffers. */ sc->bge_dmatag = pa->pa_dmat; DPRINTFN(5, ("bus_dmamem_alloc\n")); if (bus_dmamem_alloc(sc->bge_dmatag, sizeof(struct bge_ring_data), PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname); return; } DPRINTFN(5, ("bus_dmamem_map\n")); if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, sizeof(struct bge_ring_data), &kva, BUS_DMA_NOWAIT)) { printf("%s: can't map dma buffers (%d bytes)\n", sc->bge_dev.dv_xname, (int)sizeof(struct bge_ring_data)); bus_dmamem_free(sc->bge_dmatag, &seg, rseg); return; } DPRINTFN(5, ("bus_dmamem_create\n")); if (bus_dmamap_create(sc->bge_dmatag, sizeof(struct bge_ring_data), 1, sizeof(struct bge_ring_data), 0, BUS_DMA_NOWAIT, &sc->bge_ring_map)) { printf("%s: can't create dma map\n", sc->bge_dev.dv_xname); bus_dmamem_unmap(sc->bge_dmatag, kva, sizeof(struct bge_ring_data)); bus_dmamem_free(sc->bge_dmatag, &seg, rseg); return; } DPRINTFN(5, ("bus_dmamem_load\n")); if (bus_dmamap_load(sc->bge_dmatag, sc->bge_ring_map, kva, sizeof(struct bge_ring_data), NULL, BUS_DMA_NOWAIT)) { bus_dmamap_destroy(sc->bge_dmatag, sc->bge_ring_map); bus_dmamem_unmap(sc->bge_dmatag, kva, sizeof(struct bge_ring_data)); bus_dmamem_free(sc->bge_dmatag, &seg, rseg); return; } DPRINTFN(5, ("bzero\n")); sc->bge_rdata = (struct bge_ring_data *)kva; memset(sc->bge_rdata, sizeof(struct bge_ring_data), 0); /* Try to allocate memory for jumbo buffers. */ if (bge_alloc_jumbo_mem(sc)) { printf("%s: jumbo buffer allocation failed\n", sc->bge_dev.dv_xname); } else sc->ethercom.ec_capabilities |= ETHERCAP_JUMBO_MTU; /* 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 = 64; sc->bge_tx_max_coal_bds = 128; /* Set up ifnet structure */ ifp = &sc->ethercom.ec_if; ifp->if_softc = sc; 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_watchdog = bge_watchdog; IFQ_SET_MAXLEN(&ifp->if_snd, BGE_TX_RING_CNT - 1); IFQ_SET_READY(&ifp->if_snd); DPRINTFN(5, ("bcopy\n")); strcpy(ifp->if_xname, sc->bge_dev.dv_xname); sc->ethercom.ec_if.if_capabilities |= IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | IFCAP_CSUM_UDPv4; sc->ethercom.ec_capabilities |= ETHERCAP_VLAN_HWTAGGING | ETHERCAP_VLAN_MTU; /* * Do MII setup. */ DPRINTFN(5, ("mii setup\n")); sc->bge_mii.mii_ifp = ifp; sc->bge_mii.mii_readreg = bge_miibus_readreg; sc->bge_mii.mii_writereg = bge_miibus_writereg; sc->bge_mii.mii_statchg = bge_miibus_statchg; /* Save ASIC rev. */ sc->bge_asicrev = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL) & BGE_PCIMISCCTL_ASICREV; /* * Figure out what sort of media we have by checking the * hardware config word in the EEPROM. 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. */ bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET, sizeof(hwcfg)); if ((be32toh(hwcfg) & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) sc->bge_tbi = 1; /* The SysKonnect SK-9D41 is a 1000baseSX card. */ if ((pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_SUBSYS) >> 16) == SK_SUBSYSID_9D41) sc->bge_tbi = 1; if (sc->bge_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); } else { /* * Do transceiver setup. */ ifmedia_init(&sc->bge_mii.mii_media, 0, bge_ifmedia_upd, bge_ifmedia_sts); mii_attach(&sc->bge_dev, &sc->bge_mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); if (LIST_FIRST(&sc->bge_mii.mii_phys) == NULL) { printf("%s: no PHY found!\n", sc->bge_dev.dv_xname); ifmedia_add(&sc->bge_mii.mii_media, IFM_ETHER|IFM_MANUAL, 0, NULL); ifmedia_set(&sc->bge_mii.mii_media, IFM_ETHER|IFM_MANUAL); } else ifmedia_set(&sc->bge_mii.mii_media, IFM_ETHER|IFM_AUTO); } /* * Call MI attach routine. */ DPRINTFN(5, ("if_attach\n")); if_attach(ifp); DPRINTFN(5, ("ether_ifattach\n")); ether_ifattach(ifp, eaddr); DPRINTFN(5, ("callout_init\n")); callout_init(&sc->bge_timeout); } void bge_release_resources(sc) struct bge_softc *sc; { 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); } void bge_reset(sc) struct bge_softc *sc; { struct pci_attach_args *pa = &sc->bge_pa; u_int32_t cachesize, command, pcistate; int i, val = 0; /* Save some important PCI state. */ cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); command = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD); pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); /* Issue global reset */ bge_writereg_ind(sc, BGE_MISC_CFG, BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1)); DELAY(1000); /* Reset some of the PCI state that got zapped by reset */ pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, command); pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ, cachesize); bge_writereg_ind(sc, BGE_MISC_CFG, (65 << 1)); /* Enable memory arbiter. */ CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); /* * Prevent PXE restart: write a magic number to the * general communications memory at 0xB50. */ bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); /* * Poll the value location we just wrote until * we see the 1's complement of the magic number. * This indicates that the firmware initialization * is complete. */ for (i = 0; i < 750; i++) { val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); if (val == ~BGE_MAGIC_NUMBER) break; DELAY(1000); } if (i == 750) { printf("%s: firmware handshake timed out, val = %x\n", sc->bge_dev.dv_xname, val); return; } /* * 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_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE) == pcistate) break; DELAY(10); } /* Enable memory arbiter. */ CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); /* Fix up byte swapping */ CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS); CSR_WRITE_4(sc, BGE_MAC_MODE, 0); DELAY(10000); } /* * 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 recieve ring * 2) the frame is from the standard receive ring */ void bge_rxeof(sc) struct bge_softc *sc; { struct ifnet *ifp; int stdcnt = 0, jumbocnt = 0; int have_tag = 0; u_int16_t vlan_tag = 0; bus_dmamap_t dmamap; bus_addr_t offset, toff; bus_size_t tlen; int tosync; ifp = &sc->ethercom.ec_if; bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offsetof(struct bge_ring_data, bge_status_block), sizeof (struct bge_status_block), BUS_DMASYNC_POSTREAD); offset = offsetof(struct bge_ring_data, bge_rx_return_ring); tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx - sc->bge_rx_saved_considx; toff = offset + (sc->bge_rx_saved_considx * sizeof (struct bge_rx_bd)); if (tosync < 0) { tlen = (BGE_RETURN_RING_CNT - sc->bge_rx_saved_considx) * sizeof (struct bge_rx_bd); bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, toff, tlen, BUS_DMASYNC_POSTREAD); tosync = -tosync; } bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offset, tosync * sizeof (struct bge_rx_bd), BUS_DMASYNC_POSTREAD); while(sc->bge_rx_saved_considx != sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx) { struct bge_rx_bd *cur_rx; u_int32_t rxidx; struct mbuf *m = NULL; cur_rx = &sc->bge_rdata-> bge_rx_return_ring[sc->bge_rx_saved_considx]; rxidx = cur_rx->bge_idx; BGE_INC(sc->bge_rx_saved_considx, BGE_RETURN_RING_CNT); if (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); 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); m = sc->bge_cdata.bge_rx_std_chain[rxidx]; sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; stdcnt++; dmamap = sc->bge_cdata.bge_rx_std_map[rxidx]; sc->bge_cdata.bge_rx_std_map[rxidx] = 0; if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { ifp->if_ierrors++; bge_newbuf_std(sc, sc->bge_std, m, dmamap); continue; } if (bge_newbuf_std(sc, sc->bge_std, NULL, dmamap) == ENOBUFS) { ifp->if_ierrors++; bge_newbuf_std(sc, sc->bge_std, m, dmamap); continue; } } ifp->if_ipackets++; m->m_pkthdr.len = m->m_len = cur_rx->bge_len; m->m_pkthdr.rcvif = ifp; #if NBPFILTER > 0 /* * Handle BPF listeners. Let the BPF user see the packet. */ if (ifp->if_bpf) bpf_mtap(ifp->if_bpf, m); #endif if (sc->bge_asicrev != BGE_ASICREV_BCM5700_B0) { m->m_pkthdr.csum_flags |= M_CSUM_IPv4; if ((cur_rx->bge_ip_csum ^ 0xffff) != 0) m->m_pkthdr.csum_flags |= M_CSUM_IPv4_BAD; #if 0 /* XXX appears to be broken */ if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) { m->m_pkthdr.csum_data = cur_rx->bge_tcp_udp_csum; m->m_pkthdr.csum_flags |= (M_CSUM_TCPv4|M_CSUM_UDPv4|M_CSUM_DATA); } #endif } /* * If we received a packet with a vlan tag, pass it * to vlan_input() instead of ether_input(). */ if (have_tag) { struct mbuf *n; n = m_aux_add(m, AF_LINK, ETHERTYPE_VLAN); if (n != NULL) { *mtod(n, int *) = vlan_tag; n->m_len = sizeof(int); have_tag = vlan_tag = 0; } else { printf("%s: no mbuf for tag\n", ifp->if_xname); m_freem(m); have_tag = vlan_tag = 0; continue; } } (*ifp->if_input)(ifp, m); } 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); } void bge_txeof(sc) struct bge_softc *sc; { struct bge_tx_bd *cur_tx = NULL; struct ifnet *ifp; struct txdmamap_pool_entry *dma; bus_addr_t offset, toff; bus_size_t tlen; int tosync; struct mbuf *m; ifp = &sc->ethercom.ec_if; bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offsetof(struct bge_ring_data, bge_status_block), sizeof (struct bge_status_block), BUS_DMASYNC_POSTREAD); offset = offsetof(struct bge_ring_data, bge_tx_ring); tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx - sc->bge_tx_saved_considx; toff = offset + (sc->bge_tx_saved_considx * sizeof (struct bge_tx_bd)); if (tosync < 0) { tlen = (BGE_TX_RING_CNT - sc->bge_tx_saved_considx) * sizeof (struct bge_tx_bd); bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, toff, tlen, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); tosync = -tosync; } bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, offset, tosync * sizeof (struct bge_tx_bd), 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_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx) { u_int32_t idx = 0; idx = sc->bge_tx_saved_considx; cur_tx = &sc->bge_rdata->bge_tx_ring[idx]; if (cur_tx->bge_flags & BGE_TXBDFLAG_END) ifp->if_opackets++; m = sc->bge_cdata.bge_tx_chain[idx]; if (m != NULL) { sc->bge_cdata.bge_tx_chain[idx] = NULL; dma = sc->txdma[idx]; bus_dmamap_sync(sc->bge_dmatag, dma->dmamap, 0, dma->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->bge_dmatag, dma->dmamap); SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); sc->txdma[idx] = NULL; m_freem(m); } sc->bge_txcnt--; BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); ifp->if_timer = 0; } if (cur_tx != NULL) ifp->if_flags &= ~IFF_OACTIVE; } int bge_intr(xsc) void *xsc; { struct bge_softc *sc; struct ifnet *ifp; sc = xsc; ifp = &sc->ethercom.ec_if; #ifdef notdef /* Avoid this for now -- checking this register is expensive. */ /* Make sure this is really our interrupt. */ if (!(CSR_READ_4(sc, BGE_MISC_LOCAL_CTL) & BGE_MLC_INTR_STATE)) return (0); #endif /* Ack interrupt and stop others from occuring. */ CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); /* * 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 avaibable 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. */ if (BGE_IS_5700_Ax_Bx(sc->bge_asicrev)) { u_int32_t status; status = CSR_READ_4(sc, BGE_MAC_STS); if (status & BGE_MACSTAT_MI_INTERRUPT) { sc->bge_link = 0; callout_stop(&sc->bge_timeout); bge_tick(sc); /* 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); } } else { if (sc->bge_rdata->bge_status_block.bge_status & BGE_STATFLAG_LINKSTATE_CHANGED) { sc->bge_link = 0; callout_stop(&sc->bge_timeout); bge_tick(sc); /* Clear the interrupt */ CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| BGE_MACSTAT_CFG_CHANGED); } } if (ifp->if_flags & IFF_RUNNING) { /* Check RX return ring producer/consumer */ bge_rxeof(sc); /* Check TX ring producer/consumer */ bge_txeof(sc); } bge_handle_events(sc); /* Re-enable interrupts. */ CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); if (ifp->if_flags & IFF_RUNNING && !IFQ_IS_EMPTY(&ifp->if_snd)) bge_start(ifp); return (1); } void bge_tick(xsc) void *xsc; { struct bge_softc *sc = xsc; struct mii_data *mii = &sc->bge_mii; struct ifmedia *ifm = NULL; struct ifnet *ifp = &sc->ethercom.ec_if; int s; s = splnet(); bge_stats_update(sc); callout_reset(&sc->bge_timeout, hz, bge_tick, sc); if (sc->bge_link) { splx(s); return; } if (sc->bge_tbi) { ifm = &sc->bge_ifmedia; if (CSR_READ_4(sc, BGE_MAC_STS) & BGE_MACSTAT_TBI_PCS_SYNCHED) { sc->bge_link++; CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); printf("%s: gigabit link up\n", sc->bge_dev.dv_xname); if (!IFQ_IS_EMPTY(&ifp->if_snd)) bge_start(ifp); } splx(s); return; } mii_tick(mii); if (!sc->bge_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { sc->bge_link++; if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T || IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) printf("%s: gigabit link up\n", sc->bge_dev.dv_xname); if (!IFQ_IS_EMPTY(&ifp->if_snd)) bge_start(ifp); } splx(s); } void bge_stats_update(sc) struct bge_softc *sc; { struct ifnet *ifp = &sc->ethercom.ec_if; bus_size_t stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; #define READ_STAT(sc, stats, stat) \ CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) ifp->if_collisions += (READ_STAT(sc, stats, dot3StatsSingleCollisionFrames.bge_addr_lo) + READ_STAT(sc, stats, dot3StatsMultipleCollisionFrames.bge_addr_lo) + READ_STAT(sc, stats, dot3StatsExcessiveCollisions.bge_addr_lo) + READ_STAT(sc, stats, dot3StatsLateCollisions.bge_addr_lo)) - ifp->if_collisions; #undef READ_STAT #ifdef notdef ifp->if_collisions += (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames + sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames + sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions + sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) - ifp->if_collisions; #endif } /* * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data * pointers to descriptors. */ int bge_encap(sc, m_head, txidx) struct bge_softc *sc; struct mbuf *m_head; u_int32_t *txidx; { struct bge_tx_bd *f = NULL; u_int32_t frag, cur, cnt = 0; u_int16_t csum_flags = 0; struct txdmamap_pool_entry *dma; bus_dmamap_t dmamap; int i = 0; struct mbuf *n; cur = frag = *txidx; if (m_head->m_pkthdr.csum_flags) { if (m_head->m_pkthdr.csum_flags & M_CSUM_IPv4) csum_flags |= BGE_TXBDFLAG_IP_CSUM; if (m_head->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_UDPv4)) csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; } dma = SLIST_FIRST(&sc->txdma_list); if (dma == NULL) return ENOBUFS; dmamap = dma->dmamap; /* * Start packing the mbufs in this chain into * the fragment pointers. Stop when we run out * of fragments or hit the end of the mbuf chain. */ if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_head, BUS_DMA_NOWAIT)) return(ENOBUFS); n = sc->ethercom.ec_nvlans ? m_aux_find(m_head, AF_LINK, ETHERTYPE_VLAN) : NULL; for (i = 0; i < dmamap->dm_nsegs; i++) { f = &sc->bge_rdata->bge_tx_ring[frag]; if (sc->bge_cdata.bge_tx_chain[frag] != NULL) break; bge_set_hostaddr(&f->bge_addr, dmamap->dm_segs[i].ds_addr); f->bge_len = dmamap->dm_segs[i].ds_len; f->bge_flags = csum_flags; if (n != NULL) { f->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; f->bge_vlan_tag = *mtod(n, int *); } else { f->bge_vlan_tag = 0; } /* * Sanity check: avoid coming within 16 descriptors * of the end of the ring. */ if ((BGE_TX_RING_CNT - (sc->bge_txcnt + cnt)) < 16) return(ENOBUFS); cur = frag; BGE_INC(frag, BGE_TX_RING_CNT); cnt++; } if (i < dmamap->dm_nsegs) return ENOBUFS; bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE); if (frag == sc->bge_tx_saved_considx) return(ENOBUFS); sc->bge_rdata->bge_tx_ring[cur].bge_flags |= BGE_TXBDFLAG_END; sc->bge_cdata.bge_tx_chain[cur] = m_head; SLIST_REMOVE_HEAD(&sc->txdma_list, link); sc->txdma[cur] = dma; sc->bge_txcnt += cnt; *txidx = frag; 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. */ void bge_start(ifp) struct ifnet *ifp; { struct bge_softc *sc; struct mbuf *m_head = NULL; u_int32_t prodidx = 0; int pkts = 0; sc = ifp->if_softc; if (!sc->bge_link && ifp->if_snd.ifq_len < 10) return; prodidx = CSR_READ_4(sc, BGE_MBX_TX_HOST_PROD0_LO); while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) break; #if 0 /* * 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) { ifp->if_flags |= IFF_OACTIVE; break; } } #endif /* * 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)) { ifp->if_flags |= IFF_OACTIVE; break; } /* now we are committed to transmit the packet */ IFQ_DEQUEUE(&ifp->if_snd, m_head); pkts++; #if NBPFILTER > 0 /* * If there's a BPF listener, bounce a copy of this frame * to him. */ if (ifp->if_bpf) bpf_mtap(ifp->if_bpf, m_head); #endif } if (pkts == 0) return; /* Transmit */ CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; } /* * If we have a BCM5400 or BCM5401 PHY, we need to properly * program its internal DSP. Failing to do this can result in * massive packet loss at 1Gb speeds. */ void bge_phy_hack(sc) struct bge_softc *sc; { struct bge_bcom_hack bhack[] = { { BRGPHY_MII_AUXCTL, 0x4C20 }, { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, { BRGPHY_MII_DSP_ADDR_REG, 0x201F }, { BRGPHY_MII_DSP_RW_PORT, 0x0A20 }, { 0, 0 } }; u_int16_t vid, did; int i; vid = bge_miibus_readreg(&sc->bge_dev, 1, MII_PHYIDR1); did = bge_miibus_readreg(&sc->bge_dev, 1, MII_PHYIDR2); if (MII_OUI(vid, did) == MII_OUI_BROADCOM && (MII_MODEL(did) == MII_MODEL_BROADCOM_BCM5400 || MII_MODEL(did) == MII_MODEL_BROADCOM_BCM5401)) { i = 0; while (bhack[i].reg) { bge_miibus_writereg(&sc->bge_dev, 1, bhack[i].reg, bhack[i].val); i++; } } } int bge_init(ifp) struct ifnet *ifp; { struct bge_softc *sc = ifp->if_softc; u_int16_t *m; int s, error; s = splnet(); ifp = &sc->ethercom.ec_if; /* Cancel pending I/O and flush buffers. */ bge_stop(sc); bge_reset(sc); bge_chipinit(sc); /* * Init the various state machines, ring * control blocks and firmware. */ error = bge_blockinit(sc); if (error != 0) { printf("%s: initialization error %d\n", sc->bge_dev.dv_xname, error); splx(s); return error; } ifp = &sc->ethercom.ec_if; /* Specify MTU. */ CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN); /* Load our MAC address. */ m = (u_int16_t *)&(LLADDR(ifp->if_sadl)[0]); 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])); /* Enable or disable promiscuous mode as needed. */ if (ifp->if_flags & IFF_PROMISC) { BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); } else { BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); } /* Program multicast filter. */ bge_setmulti(sc); /* Init RX ring. */ bge_init_rx_ring_std(sc); /* 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 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); /* 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(ifp); ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; splx(s); callout_reset(&sc->bge_timeout, hz, bge_tick, sc); return 0; } /* * Set media options. */ int bge_ifmedia_upd(ifp) struct ifnet *ifp; { struct bge_softc *sc = ifp->if_softc; struct mii_data *mii = &sc->bge_mii; struct ifmedia *ifm = &sc->bge_ifmedia; /* If this is a 1000baseX NIC, enable the TBI port. */ if (sc->bge_tbi) { if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) return(EINVAL); switch(IFM_SUBTYPE(ifm->ifm_media)) { case IFM_AUTO: 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 = 0; 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); } bge_phy_hack(sc); mii_mediachg(mii); return(0); } /* * Report current media status. */ void bge_ifmedia_sts(ifp, ifmr) struct ifnet *ifp; struct ifmediareq *ifmr; { struct bge_softc *sc = ifp->if_softc; struct mii_data *mii = &sc->bge_mii; if (sc->bge_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; 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; return; } mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } int bge_ioctl(ifp, command, data) struct ifnet *ifp; u_long command; caddr_t data; { struct bge_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *) data; int s, error = 0; struct mii_data *mii; s = splnet(); switch(command) { case SIOCSIFFLAGS: 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. */ if (ifp->if_flags & IFF_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->bge_if_flags & IFF_PROMISC)) { BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); } else if (ifp->if_flags & IFF_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->bge_if_flags & IFF_PROMISC) { BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); } else bge_init(ifp); } else { if (ifp->if_flags & IFF_RUNNING) { bge_stop(sc); } } sc->bge_if_flags = ifp->if_flags; error = 0; break; case SIOCSIFMEDIA: case SIOCGIFMEDIA: if (sc->bge_tbi) { error = ifmedia_ioctl(ifp, ifr, &sc->bge_ifmedia, command); } else { mii = &sc->bge_mii; error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); } error = 0; break; default: error = ether_ioctl(ifp, command, data); if (error == ENETRESET) { bge_setmulti(sc); error = 0; } break; } splx(s); return(error); } void bge_watchdog(ifp) struct ifnet *ifp; { struct bge_softc *sc; sc = ifp->if_softc; printf("%s: watchdog timeout -- resetting\n", sc->bge_dev.dv_xname); ifp->if_flags &= ~IFF_RUNNING; bge_init(ifp); ifp->if_oerrors++; } static void bge_stop_block(struct bge_softc *sc, bus_addr_t reg, uint32_t bit) { int i; BGE_CLRBIT(sc, reg, bit); for (i = 0; i < BGE_TIMEOUT; i++) { if ((CSR_READ_4(sc, reg) & bit) == 0) return; delay(100); } printf("%s: block failed to stop: reg 0x%lx, bit 0x%08x\n", sc->bge_dev.dv_xname, (u_long) reg, bit); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ void bge_stop(sc) struct bge_softc *sc; { struct ifnet *ifp = &sc->ethercom.ec_if; callout_stop(&sc->bge_timeout); /* * Disable all of the receiver blocks */ bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); /* * Disable all of the transmit blocks */ bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); /* * Shut down all of the memory managers and related * state machines. */ bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); bge_stop_block(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); bge_stop_block(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_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); /* Free the RX lists. */ bge_free_rx_ring_std(sc); /* Free jumbo RX list. */ bge_free_rx_ring_jumbo(sc); /* Free TX buffers. */ bge_free_tx_ring(sc); /* * Isolate/power down the PHY. */ if (!sc->bge_tbi) mii_down(&sc->bge_mii); sc->bge_link = 0; sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ void bge_shutdown(xsc) void *xsc; { struct bge_softc *sc = (struct bge_softc *)xsc; bge_stop(sc); bge_reset(sc); }