diff options
Diffstat (limited to 'sys/dev/pci/if_sf.c')
| -rw-r--r-- | sys/dev/pci/if_sf.c | 1395 |
1 files changed, 0 insertions, 1395 deletions
diff --git a/sys/dev/pci/if_sf.c b/sys/dev/pci/if_sf.c deleted file mode 100644 index 77cd73aebe7..00000000000 --- a/sys/dev/pci/if_sf.c +++ /dev/null @@ -1,1395 +0,0 @@ -/* $OpenBSD: if_sf.c,v 1.40 2006/08/22 19:11:46 martin Exp $ */ -/* - * Copyright (c) 1997, 1998, 1999 - * Bill Paul <wpaul@ctr.columbia.edu>. 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: src/sys/pci/if_sf.c,v 1.23 2000/07/14 19:11:02 wpaul Exp $ - */ - -/* - * Adaptec AIC-6915 "Starfire" PCI fast ethernet driver for FreeBSD. - * Programming manual is available from: - * http://download.adaptec.com/pdfs/user_guides/aic6915_pg.pdf. - * - * Written by Bill Paul <wpaul@ctr.columbia.edu> - * Department of Electical Engineering - * Columbia University, New York City - */ - -/* - * The Adaptec AIC-6915 "Starfire" is a 64-bit 10/100 PCI ethernet - * controller designed with flexibility and reducing CPU load in mind. - * The Starfire offers high and low priority buffer queues, a - * producer/consumer index mechanism and several different buffer - * queue and completion queue descriptor types. Any one of a number - * of different driver designs can be used, depending on system and - * OS requirements. This driver makes use of type0 transmit frame - * descriptors (since BSD fragments packets across an mbuf chain) - * and two RX buffer queues prioritized on size (one queue for small - * frames that will fit into a single mbuf, another with full size - * mbuf clusters for everything else). The producer/consumer indexes - * and completion queues are also used. - * - * One downside to the Starfire has to do with alignment: buffer - * queues must be aligned on 256-byte boundaries, and receive buffers - * must be aligned on longword boundaries. The receive buffer alignment - * causes problems on the Alpha platform, where the packet payload - * should be longword aligned. There is no simple way around this. - * - * For receive filtering, the Starfire offers 16 perfect filter slots - * and a 512-bit hash table. - * - * The Starfire has no internal transceiver, relying instead on an - * external MII-based transceiver. Accessing registers on external - * PHYs is done through a special register map rather than with the - * usual bitbang MDIO method. - * - * Accessing the registers on the Starfire is a little tricky. The - * Starfire has a 512K internal register space. When programmed for - * PCI memory mapped mode, the entire register space can be accessed - * directly. However in I/O space mode, only 256 bytes are directly - * mapped into PCI I/O space. The other registers can be accessed - * indirectly using the SF_INDIRECTIO_ADDR and SF_INDIRECTIO_DATA - * registers inside the 256-byte I/O window. - */ - -#include "bpfilter.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/protosw.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <sys/errno.h> -#include <sys/malloc.h> -#include <sys/kernel.h> -#include <sys/timeout.h> - -#include <net/if.h> -#include <net/if_dl.h> -#include <net/if_types.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/in_var.h> -#include <netinet/ip.h> -#include <netinet/if_ether.h> - -#include <net/if_media.h> - -#if NBPFILTER > 0 -#include <net/bpf.h> -#endif - -#include <uvm/uvm_extern.h> /* for vtophys */ - -#include <sys/device.h> - -#include <dev/mii/mii.h> -#include <dev/mii/miivar.h> - -#include <dev/pci/pcireg.h> -#include <dev/pci/pcivar.h> -#include <dev/pci/pcidevs.h> - -#define SF_USEIOSPACE - -#include <dev/pci/if_sfreg.h> - -int sf_probe(struct device *, void *, void *); -void sf_attach(struct device *, struct device *, void *); -int sf_intr(void *); -void sf_shutdown(void *); -void sf_stats_update(void *); -void sf_rxeof(struct sf_softc *); -void sf_txeof(struct sf_softc *); -int sf_encap(struct sf_softc *, struct sf_tx_bufdesc_type0 *, - struct mbuf *); -void sf_start(struct ifnet *); -int sf_ioctl(struct ifnet *, u_long, caddr_t); -void sf_init(void *); -void sf_stop(struct sf_softc *); -void sf_watchdog(struct ifnet *); -int sf_ifmedia_upd(struct ifnet *); -void sf_ifmedia_sts(struct ifnet *, struct ifmediareq *); -void sf_reset(struct sf_softc *); -int sf_init_rx_ring(struct sf_softc *); -void sf_init_tx_ring(struct sf_softc *); -int sf_newbuf(struct sf_softc *, struct sf_rx_bufdesc_type0 *, - struct mbuf *); -void sf_setmulti(struct sf_softc *); -int sf_setperf(struct sf_softc *, int, caddr_t); -int sf_sethash(struct sf_softc *, caddr_t, int); -#ifdef notdef -int sf_setvlan(struct sf_softc *, int, u_int32_t); -#endif - -u_int8_t sf_read_eeprom(struct sf_softc *, int); - -int sf_miibus_readreg(struct device *, int, int); -void sf_miibus_writereg(struct device *, int, int, int); -void sf_miibus_statchg(struct device *); - -u_int32_t csr_read_4(struct sf_softc *, int); -void csr_write_4(struct sf_softc *, int, u_int32_t); -void sf_txthresh_adjust(struct sf_softc *); - -#define SF_SETBIT(sc, reg, x) \ - csr_write_4(sc, reg, csr_read_4(sc, reg) | x) - -#define SF_CLRBIT(sc, reg, x) \ - csr_write_4(sc, reg, csr_read_4(sc, reg) & ~x) - -u_int32_t csr_read_4(sc, reg) - struct sf_softc *sc; - int reg; -{ - u_int32_t val; - -#ifdef SF_USEIOSPACE - CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE); - val = CSR_READ_4(sc, SF_INDIRECTIO_DATA); -#else - val = CSR_READ_4(sc, (reg + SF_RMAP_INTREG_BASE)); -#endif - - return(val); -} - -u_int8_t sf_read_eeprom(sc, reg) - struct sf_softc *sc; - int reg; -{ - u_int8_t val; - - val = (csr_read_4(sc, SF_EEADDR_BASE + - (reg & 0xFFFFFFFC)) >> (8 * (reg & 3))) & 0xFF; - - return(val); -} - -void csr_write_4(sc, reg, val) - struct sf_softc *sc; - int reg; - u_int32_t val; -{ -#ifdef SF_USEIOSPACE - CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE); - CSR_WRITE_4(sc, SF_INDIRECTIO_DATA, val); -#else - CSR_WRITE_4(sc, (reg + SF_RMAP_INTREG_BASE), val); -#endif - return; -} - -/* - * Copy the address 'mac' into the perfect RX filter entry at - * offset 'idx.' The perfect filter only has 16 entries so do - * some sanity tests. - */ -int sf_setperf(sc, idx, mac) - struct sf_softc *sc; - int idx; - caddr_t mac; -{ - u_int16_t *p; - - if (idx < 0 || idx > SF_RXFILT_PERFECT_CNT) - return(EINVAL); - - if (mac == NULL) - return(EINVAL); - - p = (u_int16_t *)mac; - - csr_write_4(sc, SF_RXFILT_PERFECT_BASE + - (idx * SF_RXFILT_PERFECT_SKIP), htons(p[2])); - csr_write_4(sc, SF_RXFILT_PERFECT_BASE + - (idx * SF_RXFILT_PERFECT_SKIP) + 4, htons(p[1])); - csr_write_4(sc, SF_RXFILT_PERFECT_BASE + - (idx * SF_RXFILT_PERFECT_SKIP) + 8, htons(p[0])); - - return(0); -} - -/* - * Set the bit in the 512-bit hash table that corresponds to the - * specified mac address 'mac.' If 'prio' is nonzero, update the - * priority hash table instead of the filter hash table. - */ -int sf_sethash(sc, mac, prio) - struct sf_softc *sc; - caddr_t mac; - int prio; -{ - u_int32_t h = 0; - - if (mac == NULL) - return(EINVAL); - - h = (ether_crc32_be(mac, ETHER_ADDR_LEN) >> 23) & 0x1FF; - - if (prio) { - SF_SETBIT(sc, SF_RXFILT_HASH_BASE + SF_RXFILT_HASH_PRIOOFF + - (SF_RXFILT_HASH_SKIP * (h >> 4)), (1 << (h & 0xF))); - } else { - SF_SETBIT(sc, SF_RXFILT_HASH_BASE + SF_RXFILT_HASH_ADDROFF + - (SF_RXFILT_HASH_SKIP * (h >> 4)), (1 << (h & 0xF))); - } - - return(0); -} - -#ifdef notdef -/* - * Set a VLAN tag in the receive filter. - */ -int sf_setvlan(sc, idx, vlan) - struct sf_softc *sc; - int idx; - u_int32_t vlan; -{ - if (idx < 0 || idx >> SF_RXFILT_HASH_CNT) - return(EINVAL); - - csr_write_4(sc, SF_RXFILT_HASH_BASE + - (idx * SF_RXFILT_HASH_SKIP) + SF_RXFILT_HASH_VLANOFF, vlan); - - return(0); -} -#endif - -int sf_miibus_readreg(self, phy, reg) - struct device *self; - int phy, reg; -{ - struct sf_softc *sc = (struct sf_softc *)self; - int i; - u_int32_t val = 0; - - for (i = 0; i < SF_TIMEOUT; i++) { - val = csr_read_4(sc, SF_PHY_REG(phy, reg)); - if (val & SF_MII_DATAVALID) - break; - } - - if (i == SF_TIMEOUT) - return(0); - - if ((val & 0x0000FFFF) == 0xFFFF) - return(0); - - return(val & 0x0000FFFF); -} - -void sf_miibus_writereg(self, phy, reg, val) - struct device *self; - int phy, reg, val; -{ - struct sf_softc *sc = (struct sf_softc *)self; - int i; - int busy; - - csr_write_4(sc, SF_PHY_REG(phy, reg), val); - - for (i = 0; i < SF_TIMEOUT; i++) { - busy = csr_read_4(sc, SF_PHY_REG(phy, reg)); - if (!(busy & SF_MII_BUSY)) - break; - } - - return; -} - -void sf_miibus_statchg(self) - struct device *self; -{ - struct sf_softc *sc = (struct sf_softc *)self; - struct mii_data *mii; - - mii = &sc->sc_mii; - - if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { - SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_FULLDUPLEX); - csr_write_4(sc, SF_BKTOBKIPG, SF_IPGT_FDX); - } else { - SF_CLRBIT(sc, SF_MACCFG_1, SF_MACCFG1_FULLDUPLEX); - csr_write_4(sc, SF_BKTOBKIPG, SF_IPGT_HDX); - } - - return; -} - -void sf_setmulti(sc) - struct sf_softc *sc; -{ - struct ifnet *ifp; - int i; - struct arpcom *ac = &sc->arpcom; - struct ether_multi *enm; - struct ether_multistep step; - u_int8_t dummy[] = { 0, 0, 0, 0, 0, 0 }; - - ifp = &sc->arpcom.ac_if; - - /* First zot all the existing filters. */ - for (i = 1; i < SF_RXFILT_PERFECT_CNT; i++) - sf_setperf(sc, i, (char *)&dummy); - for (i = SF_RXFILT_HASH_BASE; - i < (SF_RXFILT_HASH_MAX + 1); i += 4) - csr_write_4(sc, i, 0); - SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_ALLMULTI); - - /* Now program new ones. */ -allmulti: - if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { - SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_ALLMULTI); - } else { - i = 1; - /* First find the tail of the list. */ - ETHER_FIRST_MULTI(step, ac, enm); - - /* Now traverse the list backwards. */ - while (enm != NULL) { - if (bcmp(enm->enm_addrlo, enm->enm_addrhi, - ETHER_ADDR_LEN)) { - ifp->if_flags |= IFF_ALLMULTI; - goto allmulti; - } - - /* if (enm->enm_addrlo->sa_family != AF_LINK) - continue; */ - /* - * Program the first 15 multicast groups - * into the perfect filter. For all others, - * use the hash table. - */ - if (i < SF_RXFILT_PERFECT_CNT) { - sf_setperf(sc, i, enm->enm_addrlo); - i++; - continue; - } - - sf_sethash(sc, enm->enm_addrlo, 0); - ETHER_NEXT_MULTI(step, enm); - } - } - - return; -} - -/* - * Set media options. - */ -int sf_ifmedia_upd(ifp) - struct ifnet *ifp; -{ - struct sf_softc *sc; - struct mii_data *mii; - - sc = ifp->if_softc; - mii = &sc->sc_mii; - sc->sf_link = 0; - if (mii->mii_instance) { - struct mii_softc *miisc; - LIST_FOREACH(miisc, &mii->mii_phys, mii_list) - mii_phy_reset(miisc); - } - mii_mediachg(mii); - - return(0); -} - -/* - * Report current media status. - */ -void sf_ifmedia_sts(ifp, ifmr) - struct ifnet *ifp; - struct ifmediareq *ifmr; -{ - struct sf_softc *sc; - struct mii_data *mii; - - sc = ifp->if_softc; - mii = &sc->sc_mii; - - mii_pollstat(mii); - ifmr->ifm_active = mii->mii_media_active; - ifmr->ifm_status = mii->mii_media_status; - - return; -} - -int sf_ioctl(ifp, command, data) - struct ifnet *ifp; - u_long command; - caddr_t data; -{ - struct sf_softc *sc = ifp->if_softc; - struct ifreq *ifr = (struct ifreq *) data; - struct ifaddr *ifa = (struct ifaddr *)data; - struct mii_data *mii; - int s, error = 0; - - s = splnet(); - - if ((error = ether_ioctl(ifp, &sc->arpcom, command, data)) > 0) { - splx(s); - return error; - } - - switch(command) { - case SIOCSIFADDR: - ifp->if_flags |= IFF_UP; - switch (ifa->ifa_addr->sa_family) { - case AF_INET: - sf_init(sc); - arp_ifinit(&sc->arpcom, ifa); - break; - default: - sf_init(sc); - break; - } - break; - case SIOCSIFFLAGS: - if (ifp->if_flags & IFF_UP) { - if (ifp->if_flags & IFF_RUNNING && - ifp->if_flags & IFF_PROMISC && - !(sc->sf_if_flags & IFF_PROMISC)) { - SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); - } else if (ifp->if_flags & IFF_RUNNING && - !(ifp->if_flags & IFF_PROMISC) && - sc->sf_if_flags & IFF_PROMISC) { - SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); - } else if (!(ifp->if_flags & IFF_RUNNING)) - sf_init(sc); - } else { - if (ifp->if_flags & IFF_RUNNING) - sf_stop(sc); - } - sc->sf_if_flags = ifp->if_flags; - error = 0; - break; - case SIOCADDMULTI: - case SIOCDELMULTI: - error = (command == SIOCADDMULTI) ? - ether_addmulti(ifr, &sc->arpcom) : - ether_delmulti(ifr, &sc->arpcom); - - if (error == ENETRESET) { - /* - * Multicast list has changed; set the hardware - * filter accordingly. - */ - if (ifp->if_flags & IFF_RUNNING) - sf_setmulti(sc); - error = 0; - } - break; - case SIOCGIFMEDIA: - case SIOCSIFMEDIA: - mii = &sc->sc_mii; - error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); - break; - default: - error = ENOTTY; - break; - } - - splx(s); - - return(error); -} - -void sf_reset(sc) - struct sf_softc *sc; -{ - int i; - - csr_write_4(sc, SF_GEN_ETH_CTL, 0); - SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_SOFTRESET); - DELAY(1000); - SF_CLRBIT(sc, SF_MACCFG_1, SF_MACCFG1_SOFTRESET); - - SF_SETBIT(sc, SF_PCI_DEVCFG, SF_PCIDEVCFG_RESET); - - for (i = 0; i < SF_TIMEOUT; i++) { - DELAY(10); - if (!(csr_read_4(sc, SF_PCI_DEVCFG) & SF_PCIDEVCFG_RESET)) - break; - } - - if (i == SF_TIMEOUT) - printf("%s: reset never completed!\n", sc->sc_dev.dv_xname); - - /* Wait a little while for the chip to get its brains in order. */ - DELAY(1000); - return; -} - -/* - * Probe for an Adaptec AIC-6915 chip. Check the PCI vendor and device - * IDs against our list and return a device name if we find a match. - * We also check the subsystem ID so that we can identify exactly which - * NIC has been found, if possible. - */ -int sf_probe(parent, match, aux) - struct device *parent; - void *match; - void *aux; -{ - struct pci_attach_args *pa = (struct pci_attach_args *)aux; - - if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADP && - PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADP_AIC6915) - return(1); - - return(0); -} - -/* - * Attach the interface. Allocate softc structures, do ifmedia - * setup and ethernet/BPF attach. - */ -void sf_attach(parent, self, aux) - struct device *parent, *self; - void *aux; -{ - int i; - const char *intrstr = NULL; - u_int32_t command; - struct sf_softc *sc = (struct sf_softc *)self; - struct pci_attach_args *pa = aux; - pci_chipset_tag_t pc = pa->pa_pc; - pci_intr_handle_t ih; - struct ifnet *ifp; - bus_size_t size; - - /* - * Handle power management nonsense. - */ - command = pci_conf_read(pc, pa->pa_tag, SF_PCI_CAPID) & 0x000000FF; - if (command == 0x01) { - - command = pci_conf_read(pc, pa->pa_tag, SF_PCI_PWRMGMTCTRL); - if (command & SF_PSTATE_MASK) { - u_int32_t iobase, membase, irq; - - /* Save important PCI config data. */ - iobase = pci_conf_read(pc, pa->pa_tag, SF_PCI_LOIO); - membase = pci_conf_read(pc, pa->pa_tag, SF_PCI_LOMEM); - irq = pci_conf_read(pc, pa->pa_tag, SF_PCI_INTLINE); - - /* Reset the power state. */ - printf("%s: chip is in D%d power mode -- setting to D0\n", - sc->sc_dev.dv_xname, command & SF_PSTATE_MASK); - command &= 0xFFFFFFFC; - pci_conf_write(pc, pa->pa_tag, SF_PCI_PWRMGMTCTRL, command); - - /* Restore PCI config data. */ - pci_conf_write(pc, pa->pa_tag, SF_PCI_LOIO, iobase); - pci_conf_write(pc, pa->pa_tag, SF_PCI_LOMEM, membase); - pci_conf_write(pc, pa->pa_tag, SF_PCI_INTLINE, irq); - } - } - - /* - * Map control/status registers. - */ - -#ifdef SF_USEIOSPACE - if (pci_mapreg_map(pa, SF_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, - &sc->sf_btag, &sc->sf_bhandle, NULL, &size, 0)) { - printf(": can't map I/O space\n"); - return; - } -#else - if (pci_mapreg_map(pa, SF_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, - &sc->sf_btag, &sc->sf_bhandle, NULL, &size, 0)){ - printf(": can't map mem space\n"); - return; - } -#endif - - /* Allocate interrupt */ - if (pci_intr_map(pa, &ih)) { - printf(": couldn't map interrupt\n"); - goto fail_1; - } - intrstr = pci_intr_string(pc, ih); - sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, sf_intr, sc, - self->dv_xname); - if (sc->sc_ih == NULL) { - printf(": couldn't establish interrupt"); - if (intrstr != NULL) - printf(" at %s", intrstr); - printf("\n"); - goto fail_1; - } - printf(": %s", intrstr); - - /* Reset the adapter. */ - sf_reset(sc); - - /* - * Get station address from the EEPROM. - */ - for (i = 0; i < ETHER_ADDR_LEN; i++) - sc->arpcom.ac_enaddr[i] = - sf_read_eeprom(sc, SF_EE_NODEADDR + ETHER_ADDR_LEN - i); - - printf(", address %s\n", ether_sprintf(sc->arpcom.ac_enaddr)); - - /* Allocate the descriptor queues. */ - sc->sf_ldata_ptr = malloc(sizeof(struct sf_list_data) + 8, - M_DEVBUF, M_NOWAIT); - if (sc->sf_ldata_ptr == NULL) { - printf(": no memory for list buffers!\n"); - goto fail_2; - } - - sc->sf_ldata = (struct sf_list_data *)sc->sf_ldata_ptr; - bzero(sc->sf_ldata, sizeof(struct sf_list_data)); - - ifp = &sc->arpcom.ac_if; - ifp->if_softc = sc; - ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; - ifp->if_ioctl = sf_ioctl; - ifp->if_start = sf_start; - ifp->if_watchdog = sf_watchdog; - ifp->if_baudrate = 10000000; - IFQ_SET_MAXLEN(&ifp->if_snd, SF_TX_DLIST_CNT - 1); - IFQ_SET_READY(&ifp->if_snd); - bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); - - /* - * Initialize our media structures and probe the MII. - */ - sc->sc_mii.mii_ifp = ifp; - sc->sc_mii.mii_readreg = sf_miibus_readreg; - sc->sc_mii.mii_writereg = sf_miibus_writereg; - sc->sc_mii.mii_statchg = sf_miibus_statchg; - ifmedia_init(&sc->sc_mii.mii_media, 0, sf_ifmedia_upd, sf_ifmedia_sts); - mii_attach(self, &sc->sc_mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, - 0); - if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { - ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); - ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE); - } else - ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); - - /* - * Call MI attach routines. - */ - if_attach(ifp); - ether_ifattach(ifp); - - shutdownhook_establish(sf_shutdown, sc); - return; - -fail_2: - pci_intr_disestablish(pc, sc->sc_ih); - -fail_1: - bus_space_unmap(sc->sf_btag, sc->sf_bhandle, size); -} - -int sf_init_rx_ring(sc) - struct sf_softc *sc; -{ - struct sf_list_data *ld; - int i; - - ld = sc->sf_ldata; - - bzero((char *)ld->sf_rx_dlist_big, - sizeof(struct sf_rx_bufdesc_type0) * SF_RX_DLIST_CNT); - bzero((char *)ld->sf_rx_clist, - sizeof(struct sf_rx_cmpdesc_type3) * SF_RX_CLIST_CNT); - - for (i = 0; i < SF_RX_DLIST_CNT; i++) { - if (sf_newbuf(sc, &ld->sf_rx_dlist_big[i], NULL) == ENOBUFS) - return(ENOBUFS); - } - - return(0); -} - -void sf_init_tx_ring(sc) - struct sf_softc *sc; -{ - struct sf_list_data *ld; - int i; - - ld = sc->sf_ldata; - - bzero((char *)ld->sf_tx_dlist, - sizeof(struct sf_tx_bufdesc_type0) * SF_TX_DLIST_CNT); - bzero((char *)ld->sf_tx_clist, - sizeof(struct sf_tx_cmpdesc_type0) * SF_TX_CLIST_CNT); - - for (i = 0; i < SF_TX_DLIST_CNT; i++) - ld->sf_tx_dlist[i].sf_id = SF_TX_BUFDESC_ID; - for (i = 0; i < SF_TX_CLIST_CNT; i++) - ld->sf_tx_clist[i].sf_type = SF_TXCMPTYPE_TX; - - ld->sf_tx_dlist[SF_TX_DLIST_CNT - 1].sf_end = 1; - sc->sf_tx_cnt = 0; - - return; -} - -int sf_newbuf(sc, c, m) - struct sf_softc *sc; - struct sf_rx_bufdesc_type0 *c; - struct mbuf *m; -{ - struct mbuf *m_new = NULL; - - 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; - } 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, sizeof(u_int64_t)); - - c->sf_mbuf = m_new; - c->sf_addrlo = SF_RX_HOSTADDR(vtophys(mtod(m_new, vaddr_t))); - c->sf_valid = 1; - - return(0); -} - -/* - * The starfire is programmed to use 'normal' mode for packet reception, - * which means we use the consumer/producer model for both the buffer - * descriptor queue and the completion descriptor queue. The only problem - * with this is that it involves a lot of register accesses: we have to - * read the RX completion consumer and producer indexes and the RX buffer - * producer index, plus the RX completion consumer and RX buffer producer - * indexes have to be updated. It would have been easier if Adaptec had - * put each index in a separate register, especially given that the damn - * NIC has a 512K register space. - * - * In spite of all the lovely features that Adaptec crammed into the 6915, - * it is marred by one truly stupid design flaw, which is that receive - * buffer addresses must be aligned on a longword boundary. This forces - * the packet payload to be unaligned, which is suboptimal on the x86 and - * completely unuseable on the Alpha. Our only recourse is to copy received - * packets into properly aligned buffers before handing them off. - */ - -void sf_rxeof(sc) - struct sf_softc *sc; -{ - struct mbuf *m; - struct ifnet *ifp; - struct sf_rx_bufdesc_type0 *desc; - struct sf_rx_cmpdesc_type3 *cur_rx; - u_int32_t rxcons, rxprod; - int cmpprodidx, cmpconsidx, bufprodidx; - - ifp = &sc->arpcom.ac_if; - - rxcons = csr_read_4(sc, SF_CQ_CONSIDX); - rxprod = csr_read_4(sc, SF_RXDQ_PTR_Q1); - cmpprodidx = SF_IDX_LO(csr_read_4(sc, SF_CQ_PRODIDX)); - cmpconsidx = SF_IDX_LO(rxcons); - bufprodidx = SF_IDX_LO(rxprod); - - while (cmpconsidx != cmpprodidx) { - struct mbuf *m0; - - cur_rx = &sc->sf_ldata->sf_rx_clist[cmpconsidx]; - desc = &sc->sf_ldata->sf_rx_dlist_big[cur_rx->sf_endidx]; - m = desc->sf_mbuf; - SF_INC(cmpconsidx, SF_RX_CLIST_CNT); - SF_INC(bufprodidx, SF_RX_DLIST_CNT); - - if (!(cur_rx->sf_status1 & SF_RXSTAT1_OK)) { - ifp->if_ierrors++; - sf_newbuf(sc, desc, m); - continue; - } - - m0 = m_devget(mtod(m, char *) - ETHER_ALIGN, - cur_rx->sf_len + ETHER_ALIGN, 0, ifp, NULL); - sf_newbuf(sc, desc, m); - if (m0 == NULL) { - ifp->if_ierrors++; - continue; - } - m_adj(m0, ETHER_ALIGN); - m = m0; - - ifp->if_ipackets++; - -#if NBPFILTER > 0 - if (ifp->if_bpf) - bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN); -#endif - - /* pass it on. */ - ether_input_mbuf(ifp, m); - } - - csr_write_4(sc, SF_CQ_CONSIDX, - (rxcons & ~SF_CQ_CONSIDX_RXQ1) | cmpconsidx); - csr_write_4(sc, SF_RXDQ_PTR_Q1, - (rxprod & ~SF_RXDQ_PRODIDX) | bufprodidx); - - return; -} - -/* - * Read the transmit status from the completion queue and release - * mbufs. Note that the buffer descriptor index in the completion - * descriptor is an offset from the start of the transmit buffer - * descriptor list in bytes. This is important because the manual - * gives the impression that it should match the producer/consumer - * index, which is the offset in 8 byte blocks. - */ -void sf_txeof(sc) - struct sf_softc *sc; -{ - int txcons, cmpprodidx, cmpconsidx; - struct sf_tx_cmpdesc_type1 *cur_cmp; - struct sf_tx_bufdesc_type0 *cur_tx; - struct ifnet *ifp; - - ifp = &sc->arpcom.ac_if; - - txcons = csr_read_4(sc, SF_CQ_CONSIDX); - cmpprodidx = SF_IDX_HI(csr_read_4(sc, SF_CQ_PRODIDX)); - cmpconsidx = SF_IDX_HI(txcons); - - while (cmpconsidx != cmpprodidx) { - cur_cmp = &sc->sf_ldata->sf_tx_clist[cmpconsidx]; - cur_tx = &sc->sf_ldata->sf_tx_dlist[cur_cmp->sf_index >> 7]; - - if (cur_cmp->sf_txstat & SF_TXSTAT_TX_OK) - ifp->if_opackets++; - else { - if (cur_cmp->sf_txstat & SF_TXSTAT_TX_UNDERRUN) - sf_txthresh_adjust(sc); - ifp->if_oerrors++; - } - - sc->sf_tx_cnt--; - if (cur_tx->sf_mbuf != NULL) { - m_freem(cur_tx->sf_mbuf); - cur_tx->sf_mbuf = NULL; - } else - break; - SF_INC(cmpconsidx, SF_TX_CLIST_CNT); - } - - ifp->if_timer = 0; - ifp->if_flags &= ~IFF_OACTIVE; - - csr_write_4(sc, SF_CQ_CONSIDX, - (txcons & ~SF_CQ_CONSIDX_TXQ) | - ((cmpconsidx << 16) & 0xFFFF0000)); - - return; -} - -void -sf_txthresh_adjust(sc) - struct sf_softc *sc; -{ - u_int32_t txfctl; - u_int8_t txthresh; - - txfctl = csr_read_4(sc, SF_TX_FRAMCTL); - txthresh = txfctl & SF_TXFRMCTL_TXTHRESH; - if (txthresh < 0xFF) { - txthresh++; - txfctl &= ~SF_TXFRMCTL_TXTHRESH; - txfctl |= txthresh; -#ifdef SF_DEBUG - printf("%s: tx underrun, increasing tx threshold to %d bytes\n", - sc->sc_dev.dv_xname, txthresh * 4); -#endif - csr_write_4(sc, SF_TX_FRAMCTL, txfctl); - } - - return; -} - -int sf_intr(arg) - void *arg; -{ - struct sf_softc *sc; - struct ifnet *ifp; - u_int32_t status; - int claimed = 0; - - sc = arg; - ifp = &sc->arpcom.ac_if; - - if (!(csr_read_4(sc, SF_ISR_SHADOW) & SF_ISR_PCIINT_ASSERTED)) - return claimed; - - /* Disable interrupts. */ - csr_write_4(sc, SF_IMR, 0x00000000); - - for (;;) { - status = csr_read_4(sc, SF_ISR); - if (status) - csr_write_4(sc, SF_ISR, status); - - if (!(status & SF_INTRS)) - break; - - claimed = 1; - - if (status & SF_ISR_RXDQ1_DMADONE) - sf_rxeof(sc); - - if (status & SF_ISR_TX_TXDONE || - status & SF_ISR_TX_DMADONE || - status & SF_ISR_TX_QUEUEDONE || - status & SF_ISR_TX_LOFIFO) - sf_txeof(sc); - - if (status & SF_ISR_TX_LOFIFO) - sf_txthresh_adjust(sc); - - if (status & SF_ISR_ABNORMALINTR) { - if (status & SF_ISR_STATSOFLOW) { - timeout_del(&sc->sc_stats_tmo); - sf_stats_update(sc); - } else - sf_init(sc); - } - } - - /* Re-enable interrupts. */ - csr_write_4(sc, SF_IMR, SF_INTRS); - - if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) - sf_start(ifp); - - return claimed; -} - -void sf_init(xsc) - void *xsc; -{ - struct sf_softc *sc = xsc; - struct ifnet *ifp = &sc->arpcom.ac_if; - struct mii_data *mii; - int i, s; - - s = splnet(); - - mii = &sc->sc_mii; - - sf_stop(sc); - sf_reset(sc); - - /* Init all the receive filter registers */ - for (i = SF_RXFILT_PERFECT_BASE; - i < (SF_RXFILT_HASH_MAX + 1); i += 4) - csr_write_4(sc, i, 0); - - /* Empty stats counter registers. */ - for (i = 0; i < sizeof(struct sf_stats)/sizeof(u_int32_t); i++) - csr_write_4(sc, SF_STATS_BASE + - (i + sizeof(u_int32_t)), 0); - - /* Init our MAC address */ - csr_write_4(sc, SF_PAR0, *(u_int32_t *)(&sc->arpcom.ac_enaddr[0])); - csr_write_4(sc, SF_PAR1, *(u_int32_t *)(&sc->arpcom.ac_enaddr[4])); - sf_setperf(sc, 0, (caddr_t)&sc->arpcom.ac_enaddr); - - if (sf_init_rx_ring(sc) == ENOBUFS) { - printf("%s: initialization failed: no " - "memory for rx buffers\n", sc->sc_dev.dv_xname); - splx(s); - return; - } - - sf_init_tx_ring(sc); - - csr_write_4(sc, SF_RXFILT, SF_PERFMODE_NORMAL|SF_HASHMODE_WITHVLAN); - - /* If we want promiscuous mode, set the allframes bit. */ - if (ifp->if_flags & IFF_PROMISC) { - SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); - } else { - SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); - } - - if (ifp->if_flags & IFF_BROADCAST) { - SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_BROAD); - } else { - SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_BROAD); - } - - /* - * Load the multicast filter. - */ - sf_setmulti(sc); - - /* Init the completion queue indexes */ - csr_write_4(sc, SF_CQ_CONSIDX, 0); - csr_write_4(sc, SF_CQ_PRODIDX, 0); - - /* Init the RX completion queue */ - csr_write_4(sc, SF_RXCQ_CTL_1, - vtophys((vaddr_t)sc->sf_ldata->sf_rx_clist) & SF_RXCQ_ADDR); - SF_SETBIT(sc, SF_RXCQ_CTL_1, SF_RXCQTYPE_3); - - /* Init RX DMA control. */ - SF_SETBIT(sc, SF_RXDMA_CTL, SF_RXDMA_REPORTBADPKTS); - - /* Init the RX buffer descriptor queue. */ - csr_write_4(sc, SF_RXDQ_ADDR_Q1, - vtophys((vaddr_t)sc->sf_ldata->sf_rx_dlist_big)); - csr_write_4(sc, SF_RXDQ_CTL_1, (MCLBYTES << 16) | SF_DESCSPACE_16BYTES); - csr_write_4(sc, SF_RXDQ_PTR_Q1, SF_RX_DLIST_CNT - 1); - - /* Init the TX completion queue */ - csr_write_4(sc, SF_TXCQ_CTL, - vtophys((vaddr_t)sc->sf_ldata->sf_tx_clist) & SF_RXCQ_ADDR); - - /* Init the TX buffer descriptor queue. */ - csr_write_4(sc, SF_TXDQ_ADDR_HIPRIO, - vtophys((vaddr_t)sc->sf_ldata->sf_tx_dlist)); - SF_SETBIT(sc, SF_TX_FRAMCTL, SF_TXFRMCTL_CPLAFTERTX); - csr_write_4(sc, SF_TXDQ_CTL, - SF_TXBUFDESC_TYPE0|SF_TXMINSPACE_128BYTES|SF_TXSKIPLEN_8BYTES); - SF_SETBIT(sc, SF_TXDQ_CTL, SF_TXDQCTL_NODMACMP); - - /* Enable autopadding of short TX frames. */ - SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_AUTOPAD); - - /* Enable interrupts. */ - csr_write_4(sc, SF_IMR, SF_INTRS); - SF_SETBIT(sc, SF_PCI_DEVCFG, SF_PCIDEVCFG_INTR_ENB); - - /* Enable the RX and TX engines. */ - SF_SETBIT(sc, SF_GEN_ETH_CTL, SF_ETHCTL_RX_ENB|SF_ETHCTL_RXDMA_ENB); - SF_SETBIT(sc, SF_GEN_ETH_CTL, SF_ETHCTL_TX_ENB|SF_ETHCTL_TXDMA_ENB); - - sf_ifmedia_upd(ifp); - - ifp->if_flags |= IFF_RUNNING; - ifp->if_flags &= ~IFF_OACTIVE; - - splx(s); - - timeout_set(&sc->sc_stats_tmo, sf_stats_update, sc); - timeout_add(&sc->sc_stats_tmo, hz); - - return; -} - -int sf_encap(sc, c, m_head) - struct sf_softc *sc; - struct sf_tx_bufdesc_type0 *c; - struct mbuf *m_head; -{ - int frag = 0; - struct sf_frag *f = NULL; - struct mbuf *m; - - m = m_head; - - for (m = m_head, frag = 0; m != NULL; m = m->m_next) { - if (m->m_len != 0) { - if (frag == SF_MAXFRAGS) - break; - f = &c->sf_frags[frag]; - if (frag == 0) - f->sf_pktlen = m_head->m_pkthdr.len; - f->sf_fraglen = m->m_len; - f->sf_addr = vtophys(mtod(m, vaddr_t)); - frag++; - } - } - - if (m != NULL) { - struct mbuf *m_new = NULL; - - MGETHDR(m_new, M_DONTWAIT, MT_DATA); - if (m_new == NULL) { - printf("%s: no memory for tx list\n", - sc->sc_dev.dv_xname); - return(1); - } - - if (m_head->m_pkthdr.len > MHLEN) { - MCLGET(m_new, M_DONTWAIT); - if (!(m_new->m_flags & M_EXT)) { - m_freem(m_new); - printf("%s: no memory for tx list\n", - sc->sc_dev.dv_xname); - return(1); - } - } - m_copydata(m_head, 0, m_head->m_pkthdr.len, - mtod(m_new, caddr_t)); - m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; - m_freem(m_head); - m_head = m_new; - f = &c->sf_frags[0]; - f->sf_fraglen = f->sf_pktlen = m_head->m_pkthdr.len; - f->sf_addr = vtophys(mtod(m_head, vaddr_t)); - frag = 1; - } - - c->sf_mbuf = m_head; - c->sf_id = SF_TX_BUFDESC_ID; - c->sf_fragcnt = frag; - c->sf_intr = 1; - c->sf_caltcp = 0; - c->sf_crcen = 1; - - return(0); -} - -void sf_start(ifp) - struct ifnet *ifp; -{ - struct sf_softc *sc; - struct sf_tx_bufdesc_type0 *cur_tx = NULL; - struct mbuf *m_head = NULL; - int i, txprod; - - sc = ifp->if_softc; - - if (!sc->sf_link && ifp->if_snd.ifq_len < 10) - return; - - if (ifp->if_flags & IFF_OACTIVE) - return; - - txprod = csr_read_4(sc, SF_TXDQ_PRODIDX); - i = SF_IDX_HI(txprod) >> 4; - - if (sc->sf_ldata->sf_tx_dlist[i].sf_mbuf != NULL) { - printf("%s: TX ring full, resetting\n", sc->sc_dev.dv_xname); - sf_init(sc); - txprod = csr_read_4(sc, SF_TXDQ_PRODIDX); - i = SF_IDX_HI(txprod) >> 4; - } - - while(sc->sf_ldata->sf_tx_dlist[i].sf_mbuf == NULL) { - if (sc->sf_tx_cnt >= (SF_TX_DLIST_CNT - 5)) { - ifp->if_flags |= IFF_OACTIVE; - cur_tx = NULL; - break; - } - IFQ_DEQUEUE(&ifp->if_snd, m_head); - if (m_head == NULL) - break; - - cur_tx = &sc->sf_ldata->sf_tx_dlist[i]; - if (sf_encap(sc, cur_tx, m_head)) { - m_freem(m_head); - continue; - } - -#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, cur_tx->sf_mbuf, - BPF_DIRECTION_OUT); -#endif - - SF_INC(i, SF_TX_DLIST_CNT); - sc->sf_tx_cnt++; - /* - * Don't let the TX DMA queue get too full. - */ - if (sc->sf_tx_cnt > 64) - break; - } - - if (cur_tx == NULL) - return; - - /* Transmit */ - csr_write_4(sc, SF_TXDQ_PRODIDX, - (txprod & ~SF_TXDQ_PRODIDX_HIPRIO) | - ((i << 20) & 0xFFFF0000)); - - ifp->if_timer = 5; - - return; -} - -void sf_stop(sc) - struct sf_softc *sc; -{ - int i; - struct ifnet *ifp; - - ifp = &sc->arpcom.ac_if; - - timeout_del(&sc->sc_stats_tmo); - - ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); - - csr_write_4(sc, SF_GEN_ETH_CTL, 0); - csr_write_4(sc, SF_CQ_CONSIDX, 0); - csr_write_4(sc, SF_CQ_PRODIDX, 0); - csr_write_4(sc, SF_RXDQ_ADDR_Q1, 0); - csr_write_4(sc, SF_RXDQ_CTL_1, 0); - csr_write_4(sc, SF_RXDQ_PTR_Q1, 0); - csr_write_4(sc, SF_TXCQ_CTL, 0); - csr_write_4(sc, SF_TXDQ_ADDR_HIPRIO, 0); - csr_write_4(sc, SF_TXDQ_CTL, 0); - sf_reset(sc); - - sc->sf_link = 0; - - for (i = 0; i < SF_RX_DLIST_CNT; i++) { - if (sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf != NULL) { - m_freem(sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf); - sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf = NULL; - } - } - - for (i = 0; i < SF_TX_DLIST_CNT; i++) { - if (sc->sf_ldata->sf_tx_dlist[i].sf_mbuf != NULL) { - m_freem(sc->sf_ldata->sf_tx_dlist[i].sf_mbuf); - sc->sf_ldata->sf_tx_dlist[i].sf_mbuf = NULL; - } - } - - return; -} - -/* - * Note: it is important that this function not be interrupted. We - * use a two-stage register access scheme: if we are interrupted in - * between setting the indirect address register and reading from the - * indirect data register, the contents of the address register could - * be changed out from under us. - */ -void sf_stats_update(xsc) - void *xsc; -{ - struct sf_softc *sc; - struct ifnet *ifp; - struct mii_data *mii; - struct sf_stats stats; - u_int32_t *ptr; - int i, s; - - s = splnet(); - - sc = xsc; - ifp = &sc->arpcom.ac_if; - mii = &sc->sc_mii; - - ptr = (u_int32_t *)&stats; - for (i = 0; i < sizeof(stats)/sizeof(u_int32_t); i++) - ptr[i] = csr_read_4(sc, SF_STATS_BASE + - (i + sizeof(u_int32_t))); - - for (i = 0; i < sizeof(stats)/sizeof(u_int32_t); i++) - csr_write_4(sc, SF_STATS_BASE + - (i + sizeof(u_int32_t)), 0); - - ifp->if_collisions += stats.sf_tx_single_colls + - stats.sf_tx_multi_colls + stats.sf_tx_excess_colls; - - mii_tick(mii); - if (!sc->sf_link && mii->mii_media_status & IFM_ACTIVE && - IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { - sc->sf_link++; - if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) - sf_start(ifp); - } - - splx(s); - - timeout_add(&sc->sc_stats_tmo, hz); - - return; -} - -void sf_watchdog(ifp) - struct ifnet *ifp; -{ - struct sf_softc *sc; - - sc = ifp->if_softc; - - ifp->if_oerrors++; - printf("%s: watchdog timeout\n", sc->sc_dev.dv_xname); - - sf_stop(sc); - sf_reset(sc); - sf_init(sc); - - if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) - sf_start(ifp); - - return; -} - -void sf_shutdown(v) - void *v; -{ - struct sf_softc *sc = (struct sf_softc *)v; - - sf_stop(sc); -} - -struct cfattach sf_ca = { - sizeof(struct sf_softc), sf_probe, sf_attach -}; - -struct cfdriver sf_cd = { - 0, "sf", DV_IFNET -}; - |