3867 lines
97 KiB
C
3867 lines
97 KiB
C
/* $NetBSD: rrunner.c,v 1.13 1999/06/20 16:44:49 thorpej Exp $ */
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/*
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* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code contributed to The NetBSD Foundation by Kevin M. Lahey
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* of the Numerical Aerospace Simulation Facility, NASA Ames Research
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* Center.
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*
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* Partially based on a HIPPI driver written by Essential Communications
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* Corporation. Thanks to Jason Thorpe, Matt Jacob, and Fred Templin
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* for invaluable advice and encouragement!
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_inet.h"
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#include "opt_ns.h"
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#include "bpfilter.h"
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#include "esh.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/buf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <vm/vm.h>
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#include <uvm/uvm_extern.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/route.h>
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#include <net/if_hippi.h>
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#include <net/if_media.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_inarp.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ic/rrunnerreg.h>
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#include <dev/ic/rrunnervar.h>
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/*
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#define ESH_PRINTF
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*/
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/* Autoconfig defintion of driver back-end */
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extern struct cfdriver esh_cd;
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struct esh_softc *esh_softc_debug[22]; /* for gdb */
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#ifdef DIAGNOSTIC
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u_int32_t max_write_len;
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#endif
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/* Network device driver and initialization framework routines */
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void eshinit __P((struct esh_softc *));
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int eshioctl __P((struct ifnet *, u_long, caddr_t));
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void eshreset __P((struct esh_softc *));
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void eshstart __P((struct ifnet *));
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static int eshstatus __P((struct esh_softc *));
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void eshstop __P((struct esh_softc *));
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void eshwatchdog __P((struct ifnet *));
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/* Routines to support FP operation */
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int esh_fpopen __P((dev_t dev, int oflags, int devtype, struct proc *p));
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int esh_fpclose __P((dev_t dev, int fflag, int devtype, struct proc *));
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int esh_fpread __P((dev_t dev, struct uio *uio, int ioflag));
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int esh_fpwrite __P((dev_t dev, struct uio *uio, int ioflag));
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static void esh_fpstrategy __P((struct buf *bp));
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int esh_fpioctl __P((dev_t dev, u_long cmd, caddr_t data,
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int fflag, struct proc *p));
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void esh_fpstop __P((struct tty *tp, int rw));
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int esh_fppoll __P((dev_t dev, int events, struct proc *p));
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#ifdef MORE_DONE
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int esh_fpmmap __P((dev_t, int, int));
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#endif
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/* General routines, not externally visable */
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static struct mbuf *esh_adjust_mbufs __P((struct esh_softc *, struct mbuf *m));
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static void esh_dma_sync __P((struct esh_softc *, void *,
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int, int, int, int, int, int));
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static void esh_fill_snap_ring __P((struct esh_softc *));
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static void esh_init_snap_ring __P((struct esh_softc *));
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static void esh_close_snap_ring __P((struct esh_softc *));
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static void esh_read_snap_ring __P((struct esh_softc *, u_int16_t, int));
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static void esh_fill_fp_ring __P((struct esh_softc *,
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struct esh_fp_ring_ctl *));
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static void esh_flush_fp_ring __P((struct esh_softc *,
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struct esh_fp_ring_ctl *,
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struct esh_dmainfo *));
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static void esh_init_fp_rings __P((struct esh_softc *));
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static void esh_read_fp_ring __P((struct esh_softc *, u_int16_t, int, int));
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static void esh_reset_runcode __P((struct esh_softc *));
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static void esh_send __P((struct esh_softc *));
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static void esh_send_cmd __P((struct esh_softc *,
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u_int8_t, u_int8_t, u_int8_t));
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static u_int32_t esh_read_eeprom __P((struct esh_softc *, u_int32_t));
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static void esh_write_addr __P((bus_space_tag_t, bus_space_handle_t,
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bus_addr_t, bus_addr_t));
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static int esh_write_eeprom __P((struct esh_softc *,
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u_int32_t, u_int32_t));
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static void eshstart_cleanup __P((struct esh_softc *, u_int16_t, int));
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static struct esh_dmainfo *esh_new_dmainfo __P((struct esh_softc *));
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static void esh_free_dmainfo __P((struct esh_softc *, struct esh_dmainfo *));
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static int esh_generic_ioctl __P((struct esh_softc *, u_long, caddr_t, u_long,
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struct proc *));
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#ifdef ESH_PRINTF
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static int esh_check __P((struct esh_softc *));
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#endif
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#define ESHUNIT(x) ((minor(x) & 0xff00) >> 8)
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#define ESHULP(x) (minor(x) & 0x00ff)
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/*
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* Back-end attach and configure. Allocate DMA space and initialize
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* all structures.
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*/
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void
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eshconfig(sc)
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struct esh_softc *sc;
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{
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struct ifnet *ifp = &sc->sc_if;
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bus_space_tag_t iot = sc->sc_iot;
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bus_space_handle_t ioh = sc->sc_ioh;
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u_int32_t misc_host_ctl;
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u_int32_t misc_local_ctl;
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u_int32_t header_format;
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u_int32_t ula_tmp;
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bus_size_t size;
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int rseg;
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int error;
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int i;
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esh_softc_debug[sc->sc_dev.dv_unit] = sc;
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sc->sc_flags = 0;
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TAILQ_INIT(&sc->sc_dmainfo_freelist);
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sc->sc_dmainfo_freelist_count = 0;
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/*
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* Allocate and divvy up some host side memory that can hold
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* data structures that will be DMA'ed over to the NIC
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*/
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sc->sc_dma_size = sizeof(struct rr_gen_info) +
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sizeof(struct rr_ring_ctl) * RR_ULP_COUNT +
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sizeof(struct rr_descr) * RR_SEND_RING_SIZE +
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sizeof(struct rr_descr) * RR_SNAP_RECV_RING_SIZE +
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sizeof(struct rr_event) * RR_EVENT_RING_SIZE;
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error = bus_dmamem_alloc(sc->sc_dmat, sc->sc_dma_size,
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0, RR_DMA_BOUNDRY, &sc->sc_dmaseg, 1,
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&rseg, BUS_DMA_NOWAIT);
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if (error) {
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printf("%s: couldn't allocate space for host-side"
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"data structures\n", sc->sc_dev.dv_xname);
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return;
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}
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if (rseg > 1) {
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printf("%s: contiguous memory not available\n",
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sc->sc_dev.dv_xname);
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goto bad_dmamem_map;
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}
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error = bus_dmamem_map(sc->sc_dmat, &sc->sc_dmaseg, rseg,
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sc->sc_dma_size, &sc->sc_dma_addr,
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BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
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if (error) {
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printf("%s: couldn't map memory for host-side structures\n",
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sc->sc_dev.dv_xname);
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goto bad_dmamem_map;
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}
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if (bus_dmamap_create(sc->sc_dmat, sc->sc_dma_size,
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1, sc->sc_dma_size, RR_DMA_BOUNDRY,
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BUS_DMA_ALLOCNOW | BUS_DMA_NOWAIT,
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&sc->sc_dma)) {
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printf("%s: couldn't create DMA map\n", sc->sc_dev.dv_xname);
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goto bad_dmamap_create;
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}
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if (bus_dmamap_load(sc->sc_dmat, sc->sc_dma, sc->sc_dma_addr,
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sc->sc_dma_size, NULL, BUS_DMA_NOWAIT)) {
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printf("%s: couldn't load DMA map\n", sc->sc_dev.dv_xname);
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goto bad_dmamap_load;
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}
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bzero(sc->sc_dma_addr, sc->sc_dma_size);
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sc->sc_gen_info_dma = sc->sc_dma->dm_segs->ds_addr;
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sc->sc_gen_info = (struct rr_gen_info *) sc->sc_dma_addr;
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size = sizeof(struct rr_gen_info);
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sc->sc_recv_ring_table_dma = sc->sc_dma->dm_segs->ds_addr + size;
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sc->sc_recv_ring_table =
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(struct rr_ring_ctl *) (sc->sc_dma_addr + size);
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size += sizeof(struct rr_ring_ctl) * RR_ULP_COUNT;
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sc->sc_send_ring_dma = sc->sc_dma->dm_segs->ds_addr + size;
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sc->sc_send_ring = (struct rr_descr *) (sc->sc_dma_addr + size);
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sc->sc2_send_ring = (struct rr2_descr *) (sc->sc_dma_addr + size);
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size += sizeof(struct rr_descr) * RR_SEND_RING_SIZE;
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sc->sc_snap_recv_ring_dma = sc->sc_dma->dm_segs->ds_addr + size;
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sc->sc_snap_recv_ring = (struct rr_descr *) (sc->sc_dma_addr + size);
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sc->sc2_snap_recv_ring = (struct rr2_descr *) (sc->sc_dma_addr + size);
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size += sizeof(struct rr_descr) * RR_SNAP_RECV_RING_SIZE;
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sc->sc_event_ring_dma = sc->sc_dma->dm_segs->ds_addr + size;
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sc->sc_event_ring = (struct rr_event *) (sc->sc_dma_addr + size);
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size += sizeof(struct rr_event) * RR_EVENT_RING_SIZE;
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#ifdef DIAGNOSTIC
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if (size > sc->sc_dmaseg.ds_len) {
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printf("%s: bogus size calculation\n", sc->sc_dev.dv_xname);
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goto bad_other;
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}
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#endif
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/*
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* Allocate DMA maps for transfers. We do this here and now
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* so we won't have to wait for them in the middle of sending
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* or receiving something.
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*/
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if (bus_dmamap_create(sc->sc_dmat, ESH_MAX_NSEGS * RR_DMA_MAX,
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ESH_MAX_NSEGS, RR_DMA_MAX, RR_DMA_BOUNDRY,
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BUS_DMA_ALLOCNOW | BUS_DMA_NOWAIT,
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&sc->sc_send.ec_dma)) {
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printf("%s: failed bus_dmamap_create\n",
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sc->sc_dev.dv_xname);
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goto bad_other;
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}
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sc->sc_send.ec_offset = 0;
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sc->sc_send.ec_descr = sc->sc_send_ring;
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TAILQ_INIT(&sc->sc_send.ec_di_queue);
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for (i = 0; i < RR_MAX_SNAP_RECV_RING_SIZE; i++)
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if (bus_dmamap_create(sc->sc_dmat, RR_DMA_MAX, 1, RR_DMA_MAX,
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RR_DMA_BOUNDRY,
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BUS_DMA_ALLOCNOW | BUS_DMA_NOWAIT,
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&sc->sc_snap_recv.ec_dma[i])) {
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printf("%s: failed bus_dmamap_create\n",
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sc->sc_dev.dv_xname);
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for (i--; i >= 0; i--)
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bus_dmamap_destroy(sc->sc_dmat,
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sc->sc_snap_recv.ec_dma[i]);
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goto bad_ring_dmamap_create;
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}
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/*
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* If this is a coldboot, the NIC RunCode should be operational.
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* If it is a warmboot, it may or may not be operational.
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* Just to be sure, we'll stop the RunCode and reset everything.
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*/
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/* Halt the processor (preserve NO_SWAP, if set) */
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misc_host_ctl = bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL);
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bus_space_write_4(iot, ioh, RR_MISC_HOST_CTL,
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(misc_host_ctl & RR_MH_NO_SWAP) | RR_MH_HALT_PROC);
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/* Make the EEPROM readable */
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misc_local_ctl = bus_space_read_4(iot, ioh, RR_MISC_LOCAL_CTL);
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bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL,
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misc_local_ctl & ~(RR_LC_FAST_PROM | RR_LC_ADD_SRAM |
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RR_LC_PARITY_ON));
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/* Extract interesting information from the EEPROM: */
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header_format = esh_read_eeprom(sc, RR_EE_HEADER_FORMAT);
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if (header_format != RR_EE_HEADER_FORMAT_MAGIC) {
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printf("%s: bogus EEPROM header format value %x\n",
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sc->sc_dev.dv_xname, header_format);
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goto bad_other;
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}
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/*
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* As it is now, the runcode version in the EEPROM doesn't
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* reflect the actual runcode version number. That is only
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* available once the runcode starts up. We should probably
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* change the firmware update code to modify this value,
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* but Essential itself doesn't do it right now.
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*/
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sc->sc_sram_size = 4 * esh_read_eeprom(sc, RR_EE_SRAM_SIZE);
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sc->sc_runcode_start = esh_read_eeprom(sc, RR_EE_RUNCODE_START);
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sc->sc_runcode_version = esh_read_eeprom(sc, RR_EE_RUNCODE_VERSION);
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sc->sc_pci_latency = esh_read_eeprom(sc, RR_EE_PCI_LATENCY);
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sc->sc_pci_lat_gnt = esh_read_eeprom(sc, RR_EE_PCI_LAT_GNT);
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/* General tuning values */
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sc->sc_tune.rt_mode_and_status =
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esh_read_eeprom(sc, RR_EE_MODE_AND_STATUS);
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sc->sc_tune.rt_conn_retry_count =
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esh_read_eeprom(sc, RR_EE_CONN_RETRY_COUNT);
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sc->sc_tune.rt_conn_retry_timer =
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esh_read_eeprom(sc, RR_EE_CONN_RETRY_TIMER);
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sc->sc_tune.rt_conn_timeout =
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esh_read_eeprom(sc, RR_EE_CONN_TIMEOUT);
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sc->sc_tune.rt_interrupt_timer =
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esh_read_eeprom(sc, RR_EE_INTERRUPT_TIMER);
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sc->sc_tune.rt_tx_timeout =
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esh_read_eeprom(sc, RR_EE_TX_TIMEOUT);
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sc->sc_tune.rt_rx_timeout =
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esh_read_eeprom(sc, RR_EE_RX_TIMEOUT);
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sc->sc_tune.rt_stats_timer =
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esh_read_eeprom(sc, RR_EE_STATS_TIMER);
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sc->sc_tune.rt_stats_timer = ESH_STATS_TIMER_DEFAULT;
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/* DMA tuning values */
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sc->sc_tune.rt_pci_state =
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esh_read_eeprom(sc, RR_EE_PCI_STATE);
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sc->sc_tune.rt_dma_write_state =
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esh_read_eeprom(sc, RR_EE_DMA_WRITE_STATE);
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sc->sc_tune.rt_dma_read_state =
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esh_read_eeprom(sc, RR_EE_DMA_READ_STATE);
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sc->sc_tune.rt_driver_param =
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esh_read_eeprom(sc, RR_EE_DRIVER_PARAM);
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/*
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* Snag the ULA. The first two bytes are reserved.
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* We don't really use it immediately, but it would be good to
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* have for building IPv6 addresses, etc.
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*/
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ula_tmp = esh_read_eeprom(sc, RR_EE_ULA_HI);
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sc->sc_ula[0] = (ula_tmp >> 8) & 0xff;
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sc->sc_ula[1] = ula_tmp & 0xff;
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ula_tmp = esh_read_eeprom(sc, RR_EE_ULA_LO);
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sc->sc_ula[2] = (ula_tmp >> 24) & 0xff;
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sc->sc_ula[3] = (ula_tmp >> 16) & 0xff;
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sc->sc_ula[4] = (ula_tmp >> 8) & 0xff;
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sc->sc_ula[5] = ula_tmp & 0xff;
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/* Reset EEPROM readability */
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bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL, misc_local_ctl);
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bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
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ifp->if_softc = sc;
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ifp->if_start = eshstart;
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ifp->if_ioctl = eshioctl;
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ifp->if_watchdog = eshwatchdog;
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ifp->if_flags = IFF_SIMPLEX | IFF_NOTRAILERS | IFF_NOARP;
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if_attach(ifp);
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hippi_ifattach(ifp, sc->sc_ula);
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sc->sc_misaligned_bufs = sc->sc_bad_lens = 0;
|
|
sc->sc_fp_rings = 0;
|
|
|
|
#if NBPFILTER > 0
|
|
bpfattach(&sc->sc_if.if_bpf, ifp, DLT_HIPPI,
|
|
sizeof(struct hippi_header));
|
|
#endif
|
|
return;
|
|
|
|
bad_ring_dmamap_create:
|
|
bus_dmamap_destroy(sc->sc_dmat, sc->sc_send.ec_dma);
|
|
bad_other:
|
|
bus_dmamap_unload(sc->sc_dmat, sc->sc_dma);
|
|
bad_dmamap_load:
|
|
bus_dmamap_destroy(sc->sc_dmat, sc->sc_dma);
|
|
bad_dmamap_create:
|
|
bus_dmamem_unmap(sc->sc_dmat, sc->sc_dma_addr, sc->sc_dma_size);
|
|
bad_dmamem_map:
|
|
bus_dmamem_free(sc->sc_dmat, &sc->sc_dmaseg, rseg);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Bring device up.
|
|
*
|
|
* Assume that the on-board processor has already been stopped,
|
|
* the rings have been cleared of valid buffers, and everything
|
|
* is pretty much as it was when the system started.
|
|
*
|
|
* Stop the processor (just for good measure), clear the SRAM,
|
|
* reload the boot code, and start it all up again, with the PC
|
|
* pointing at the boot code. Once the boot code has had a chance
|
|
* to come up, adjust all of the appropriate parameters, and send
|
|
* the 'start firmware' command.
|
|
*
|
|
* The NIC won't actually be up until it gets an interrupt with an
|
|
* event indicating the RunCode is up.
|
|
*/
|
|
|
|
void
|
|
eshinit(sc)
|
|
register struct esh_softc *sc;
|
|
{
|
|
register struct ifnet *ifp = &sc->sc_if;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
struct rr_ring_ctl *ring;
|
|
u_int32_t misc_host_ctl;
|
|
u_int32_t misc_local_ctl;
|
|
u_int32_t value;
|
|
u_int32_t mode;
|
|
|
|
/* If we're already doing an init, don't try again simultaniously */
|
|
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZING) != 0)
|
|
return;
|
|
sc->sc_flags = ESH_FL_INITIALIZING;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma, 0, sc->sc_dma_size,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
/* Halt the processor (preserve NO_SWAP, if set) */
|
|
|
|
misc_host_ctl = bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL);
|
|
bus_space_write_4(iot, ioh, RR_MISC_HOST_CTL,
|
|
(misc_host_ctl & RR_MH_NO_SWAP)
|
|
| RR_MH_HALT_PROC | RR_MH_CLEAR_INT);
|
|
|
|
/* Make the EEPROM readable */
|
|
|
|
misc_local_ctl = bus_space_read_4(iot, ioh, RR_MISC_LOCAL_CTL);
|
|
bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL,
|
|
misc_local_ctl & ~(RR_LC_FAST_PROM |
|
|
RR_LC_ADD_SRAM |
|
|
RR_LC_PARITY_ON));
|
|
|
|
/* Reset DMA */
|
|
|
|
bus_space_write_4(iot, ioh, RR_RX_STATE, RR_RS_RESET);
|
|
bus_space_write_4(iot, ioh, RR_TX_STATE, 0);
|
|
bus_space_write_4(iot, ioh, RR_DMA_READ_STATE, RR_DR_RESET);
|
|
bus_space_write_4(iot, ioh, RR_DMA_WRITE_STATE, RR_DW_RESET);
|
|
bus_space_write_4(iot, ioh, RR_PCI_STATE, 0);
|
|
bus_space_write_4(iot, ioh, RR_TIMER, 0);
|
|
bus_space_write_4(iot, ioh, RR_TIMER_REF, 0);
|
|
|
|
/*
|
|
* Reset the assist register that the documentation suggests
|
|
* resetting. Too bad that the docs don't mention anything
|
|
* else about the register!
|
|
*/
|
|
|
|
bus_space_write_4(iot, ioh, 0x15C, 1);
|
|
|
|
/* Clear BIST, set the PC to the start of the code and let 'er rip */
|
|
|
|
value = bus_space_read_4(iot, ioh, RR_PCI_BIST);
|
|
bus_space_write_4(iot, ioh, RR_PCI_BIST, (value & ~0xff) | 8);
|
|
|
|
sc->sc_bist_write(sc, 0);
|
|
esh_reset_runcode(sc);
|
|
|
|
bus_space_write_4(iot, ioh, RR_PROC_PC, sc->sc_runcode_start);
|
|
bus_space_write_4(iot, ioh, RR_PROC_BREAKPT, 0x00000001);
|
|
|
|
misc_host_ctl &= ~RR_MH_HALT_PROC;
|
|
bus_space_write_4(iot, ioh, RR_MISC_HOST_CTL, misc_host_ctl);
|
|
|
|
/* XXX: should we sleep rather than delaying for 1ms!? */
|
|
|
|
delay(1000); /* Need 500 us, but we'll give it more */
|
|
|
|
value = sc->sc_bist_read(sc);
|
|
if (value != 0) {
|
|
printf("%s: BIST is %d, not 0!\n",
|
|
sc->sc_dev.dv_xname, value);
|
|
goto bad_init;
|
|
}
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("%s: BIST is %x\n", sc->sc_dev.dv_xname, value);
|
|
eshstatus(sc);
|
|
#endif
|
|
|
|
/* RunCode is up. Initialize NIC */
|
|
|
|
esh_write_addr(iot, ioh, RR_GEN_INFO_PTR, sc->sc_gen_info_dma);
|
|
esh_write_addr(iot, ioh, RR_RECV_RING_PTR, sc->sc_recv_ring_table_dma);
|
|
|
|
sc->sc_event_consumer = 0;
|
|
bus_space_write_4(iot, ioh, RR_EVENT_CONSUMER, sc->sc_event_consumer);
|
|
sc->sc_event_producer = bus_space_read_4(iot, ioh, RR_EVENT_PRODUCER);
|
|
sc->sc_cmd_producer = RR_INIT_CMD;
|
|
sc->sc_cmd_consumer = 0;
|
|
|
|
mode = bus_space_read_4(iot, ioh, RR_MODE_AND_STATUS);
|
|
mode |= (RR_MS_WARNINGS |
|
|
RR_MS_ERR_TERM |
|
|
RR_MS_NO_RESTART |
|
|
RR_MS_SWAP_DATA);
|
|
mode &= ~RR_MS_PH_MODE;
|
|
bus_space_write_4(iot, ioh, RR_MODE_AND_STATUS, mode);
|
|
|
|
#if 0
|
|
#ifdef ESH_PRINTF
|
|
printf("eshinit: misc_local_ctl %x, SRAM size %d\n", misc_local_ctl,
|
|
sc->sc_sram_size);
|
|
#endif
|
|
/*
|
|
misc_local_ctl |= (RR_LC_FAST_PROM | RR_LC_PARITY_ON);
|
|
*/
|
|
if (sc->sc_sram_size > 256 * 1024) {
|
|
misc_local_ctl |= RR_LC_ADD_SRAM;
|
|
}
|
|
#endif
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("eshinit: misc_local_ctl %x\n", misc_local_ctl);
|
|
#endif
|
|
bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL, misc_local_ctl);
|
|
|
|
/* Set tuning parameters */
|
|
|
|
bus_space_write_4(iot, ioh, RR_CONN_RETRY_COUNT,
|
|
sc->sc_tune.rt_conn_retry_count);
|
|
bus_space_write_4(iot, ioh, RR_CONN_RETRY_TIMER,
|
|
sc->sc_tune.rt_conn_retry_timer);
|
|
bus_space_write_4(iot, ioh, RR_CONN_TIMEOUT,
|
|
sc->sc_tune.rt_conn_timeout);
|
|
bus_space_write_4(iot, ioh, RR_INTERRUPT_TIMER,
|
|
sc->sc_tune.rt_interrupt_timer);
|
|
bus_space_write_4(iot, ioh, RR_TX_TIMEOUT,
|
|
sc->sc_tune.rt_tx_timeout);
|
|
bus_space_write_4(iot, ioh, RR_RX_TIMEOUT,
|
|
sc->sc_tune.rt_rx_timeout);
|
|
bus_space_write_4(iot, ioh, RR_STATS_TIMER,
|
|
sc->sc_tune.rt_stats_timer);
|
|
bus_space_write_4(iot, ioh, RR_PCI_STATE,
|
|
sc->sc_tune.rt_pci_state);
|
|
bus_space_write_4(iot, ioh, RR_DMA_WRITE_STATE,
|
|
sc->sc_tune.rt_dma_write_state);
|
|
bus_space_write_4(iot, ioh, RR_DMA_READ_STATE,
|
|
sc->sc_tune.rt_dma_read_state);
|
|
|
|
sc->sc_max_rings = bus_space_read_4(iot, ioh, RR_MAX_RECV_RINGS);
|
|
|
|
sc->sc_runcode_version =
|
|
bus_space_read_4(iot, ioh, RR_RUNCODE_VERSION);
|
|
sc->sc_version = sc->sc_runcode_version >> 16;
|
|
if (sc->sc_version != 1 && sc->sc_version != 2) {
|
|
printf("%s: bad version number %d in runcode\n",
|
|
sc->sc_dev.dv_xname, sc->sc_version);
|
|
goto bad_init;
|
|
}
|
|
|
|
if (sc->sc_version == 1) {
|
|
sc->sc_options = 0;
|
|
} else {
|
|
value = bus_space_read_4(iot, ioh, RR_ULA);
|
|
sc->sc_options = value >> 16;
|
|
}
|
|
|
|
if (sc->sc_options & (RR_OP_LONG_TX | RR_OP_LONG_RX)) {
|
|
printf("%s: unsupported firmware -- long descriptors\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto bad_init;
|
|
}
|
|
|
|
printf("%s: startup runcode version %d.%d.%d, options %x\n",
|
|
sc->sc_dev.dv_xname,
|
|
sc->sc_version,
|
|
(sc->sc_runcode_version >> 8) & 0xff,
|
|
sc->sc_runcode_version & 0xff,
|
|
sc->sc_options);
|
|
|
|
/* Initialize the general ring information */
|
|
|
|
bzero(sc->sc_recv_ring_table,
|
|
sizeof(struct rr_ring_ctl) * RR_ULP_COUNT);
|
|
|
|
ring = &sc->sc_gen_info->ri_event_ring_ctl;
|
|
ring->rr_ring_addr = sc->sc_event_ring_dma;
|
|
ring->rr_entry_size = sizeof(struct rr_event);
|
|
ring->rr_free_bufs = RR_EVENT_RING_SIZE / 4;
|
|
ring->rr_entries = RR_EVENT_RING_SIZE;
|
|
ring->rr_prod_index = 0;
|
|
|
|
ring = &sc->sc_gen_info->ri_cmd_ring_ctl;
|
|
ring->rr_free_bufs = 8;
|
|
ring->rr_entry_size = sizeof(union rr_cmd);
|
|
ring->rr_prod_index = RR_INIT_CMD;
|
|
|
|
ring = &sc->sc_gen_info->ri_send_ring_ctl;
|
|
ring->rr_ring_addr = sc->sc_send_ring_dma;
|
|
if (sc->sc_version == 1) {
|
|
ring->rr_free_bufs = RR_RR_DONT_COMPLAIN;
|
|
} else {
|
|
ring->rr_free_bufs = 0;
|
|
}
|
|
|
|
ring->rr_entries = RR_SEND_RING_SIZE;
|
|
ring->rr_entry_size = sizeof(struct rr_descr);
|
|
|
|
ring->rr_prod_index = sc->sc_send.ec_producer =
|
|
sc->sc_send.ec_consumer = 0;
|
|
sc->sc_send.ec_cur_mbuf = NULL;
|
|
sc->sc_send.ec_cur_buf = NULL;
|
|
|
|
sc->sc_snap_recv.ec_descr = sc->sc_snap_recv_ring;
|
|
sc->sc_snap_recv.ec_consumer = sc->sc_snap_recv.ec_producer = 0;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma, 0, sc->sc_dma_size,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
/* Set up the watchdog to make sure something happens! */
|
|
|
|
sc->sc_watchdog = 0;
|
|
ifp->if_timer = 5;
|
|
|
|
/*
|
|
* Can't actually turn on interface until we see some events,
|
|
* so set initialized flag, but don't start sending.
|
|
*/
|
|
|
|
sc->sc_flags = ESH_FL_INITIALIZED;
|
|
esh_send_cmd(sc, RR_CC_START_RUNCODE, 0, 0);
|
|
return;
|
|
|
|
bad_init:
|
|
sc->sc_flags = 0;
|
|
wakeup((void *) sc);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Code to handle the Framing Protocol (FP) interface to the esh.
|
|
* This will allow us to write directly to the wire, with no
|
|
* intervening bcopy's to slow us down.
|
|
*/
|
|
|
|
int
|
|
esh_fpopen(dev, oflags, devtype, p)
|
|
dev_t dev;
|
|
int oflags;
|
|
int devtype;
|
|
struct proc *p;
|
|
{
|
|
struct esh_softc *sc;
|
|
struct rr_ring_ctl *ring_ctl;
|
|
struct esh_fp_ring_ctl *recv;
|
|
int unit = ESHUNIT(dev);
|
|
int ulp = ESHULP(dev);
|
|
int error = 0;
|
|
bus_size_t size;
|
|
int rseg;
|
|
int s;
|
|
|
|
|
|
if (unit >= esh_cd.cd_ndevs || ulp == HIPPI_ULP_802)
|
|
return (ENXIO);
|
|
|
|
sc = esh_cd.cd_devs[unit];
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: opening board %d, ulp %d\n", unit, ulp);
|
|
#endif
|
|
|
|
/* If the card is not up, initialize it. */
|
|
|
|
s = splnet();
|
|
|
|
if (sc->sc_fp_rings >= sc->sc_max_rings - 1) {
|
|
splx(s);
|
|
return (ENOSPC);
|
|
}
|
|
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
eshinit(sc);
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0)
|
|
return EIO;
|
|
}
|
|
|
|
if ((sc->sc_flags & ESH_FL_RUNCODE_UP) == 0) {
|
|
/*
|
|
* Wait for the runcode to indicate that it is up,
|
|
* while watching to make sure we haven't crashed.
|
|
*/
|
|
|
|
error = 0;
|
|
while (error == 0 &&
|
|
(sc->sc_flags & ESH_FL_INITIALIZED) != 0 &&
|
|
(sc->sc_flags & ESH_FL_RUNCODE_UP) == 0) {
|
|
error = tsleep((void *) sc, PCATCH | PRIBIO,
|
|
"eshinit", 0);
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: tslept\n");
|
|
#endif
|
|
}
|
|
|
|
if (error != 0) {
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
if ((sc->sc_flags & ESH_FL_RUNCODE_UP) == 0) {
|
|
splx(s);
|
|
return EIO;
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: card up\n");
|
|
#endif
|
|
|
|
/* Look at the ring descriptor to see if the ULP is in use */
|
|
|
|
ring_ctl = &sc->sc_recv_ring_table[ulp];
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
(caddr_t) ring_ctl - (caddr_t) sc->sc_dma_addr,
|
|
sizeof(*ring_ctl),
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
if (ring_ctl->rr_entry_size != 0) {
|
|
splx(s);
|
|
return (EBUSY);
|
|
}
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: ring %d okay\n", ulp);
|
|
#endif
|
|
|
|
/*
|
|
* Allocate the DMA space for the ring; space for the
|
|
* ring control blocks has already been staticly allocated.
|
|
*/
|
|
|
|
recv = (struct esh_fp_ring_ctl *)
|
|
malloc(sizeof(*recv), M_DEVBUF, M_WAITOK);
|
|
if (recv == NULL)
|
|
return(ENOMEM);
|
|
bzero(recv, sizeof(*recv));
|
|
TAILQ_INIT(&recv->ec_queue);
|
|
|
|
size = RR_FP_RECV_RING_SIZE * sizeof(struct rr_descr);
|
|
error = bus_dmamem_alloc(sc->sc_dmat, size, 0, RR_DMA_BOUNDRY,
|
|
&recv->ec_dmaseg, 1,
|
|
&rseg, BUS_DMA_WAITOK);
|
|
|
|
if (error) {
|
|
printf("%s: couldn't allocate space for FP receive ring"
|
|
"data structures\n", sc->sc_dev.dv_xname);
|
|
goto bad_fp_dmamem_alloc;
|
|
}
|
|
|
|
if (rseg > 1) {
|
|
printf("%s: contiguous memory not available for "
|
|
"FP receive ring\n", sc->sc_dev.dv_xname);
|
|
goto bad_fp_dmamem_map;
|
|
}
|
|
|
|
error = bus_dmamem_map(sc->sc_dmat, &recv->ec_dmaseg, rseg,
|
|
size, (caddr_t *) &recv->ec_descr,
|
|
BUS_DMA_WAITOK | BUS_DMA_COHERENT);
|
|
if (error) {
|
|
printf("%s: couldn't map memory for FP receive ring\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto bad_fp_dmamem_map;
|
|
}
|
|
|
|
if (bus_dmamap_create(sc->sc_dmat, size, 1, size, RR_DMA_BOUNDRY,
|
|
BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
|
|
&recv->ec_dma)) {
|
|
printf("%s: couldn't create DMA map for FP receive ring\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto bad_fp_dmamap_create;
|
|
}
|
|
|
|
if (bus_dmamap_load(sc->sc_dmat, recv->ec_dma, recv->ec_descr,
|
|
size, NULL, BUS_DMA_WAITOK)) {
|
|
printf("%s: couldn't load DMA map for FP receive ring\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto bad_fp_dmamap_load;
|
|
}
|
|
|
|
bzero(recv->ec_descr, size);
|
|
|
|
/*
|
|
* Create the ring:
|
|
*
|
|
* XXX: HTF are we gonna deal with the fact that we don't know
|
|
* if the open succeeded until we get a responce from
|
|
* the event handler? I guess we could go to sleep waiting
|
|
* for the interrupt, and get woken up by the eshintr
|
|
* case handling it.
|
|
*/
|
|
|
|
ring_ctl->rr_ring_addr = recv->ec_dma->dm_segs->ds_addr;
|
|
ring_ctl->rr_free_bufs = RR_FP_RECV_RING_SIZE / 4;
|
|
ring_ctl->rr_entries = RR_FP_RECV_RING_SIZE;
|
|
ring_ctl->rr_entry_size = sizeof(struct rr_descr);
|
|
ring_ctl->rr_prod_index = recv->ec_producer = recv->ec_consumer = 0;
|
|
ring_ctl->rr_mode = RR_RR_CHARACTER;
|
|
recv->ec_ulp = ulp;
|
|
recv->ec_index = -1;
|
|
|
|
sc->sc_fp_recv[ulp] = recv;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
(caddr_t) ring_ctl - (caddr_t) sc->sc_dma_addr,
|
|
sizeof(*ring_ctl),
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, recv->ec_dma, 0, size,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
esh_send_cmd(sc, RR_CC_ENABLE_RING, ulp, recv->ec_producer);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: sent create ring cmd\n");
|
|
#endif
|
|
|
|
while (recv->ec_index == -1) {
|
|
error = tsleep((void *) &recv->ec_ulp, PCATCH | PRIBIO,
|
|
"eshfpopen", 0);
|
|
if (error != 0 || recv->ec_index == -1) {
|
|
splx(s);
|
|
goto bad_fp_ring_create;
|
|
}
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: created ring\n");
|
|
#endif
|
|
|
|
/*
|
|
* Ring is created. Set up various pointers to the ring
|
|
* information, fill the ring, and get going...
|
|
*/
|
|
|
|
sc->sc_fp_rings++;
|
|
splx(s);
|
|
return 0;
|
|
|
|
bad_fp_ring_create:
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpopen: bad ring create\n");
|
|
#endif
|
|
sc->sc_fp_recv[ulp] = NULL;
|
|
bzero(ring_ctl, sizeof(*ring_ctl));
|
|
bus_dmamap_unload(sc->sc_dmat, recv->ec_dma);
|
|
bad_fp_dmamap_load:
|
|
bus_dmamap_destroy(sc->sc_dmat, recv->ec_dma);
|
|
bad_fp_dmamap_create:
|
|
bus_dmamem_unmap(sc->sc_dmat, (caddr_t) recv->ec_descr, size);
|
|
bad_fp_dmamem_map:
|
|
bus_dmamem_free(sc->sc_dmat, &recv->ec_dmaseg, rseg);
|
|
bad_fp_dmamem_alloc:
|
|
free(recv, M_DEVBUF);
|
|
if (error == 0)
|
|
error = ENOMEM;
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
|
|
|
|
int
|
|
esh_fpclose(dev, fflag, devtype, p)
|
|
dev_t dev;
|
|
int fflag;
|
|
int devtype;
|
|
struct proc *p;
|
|
{
|
|
struct esh_softc *sc;
|
|
struct rr_ring_ctl *ring_ctl;
|
|
struct esh_fp_ring_ctl *ring;
|
|
int unit = ESHUNIT(dev);
|
|
int ulp = ESHULP(dev);
|
|
int index;
|
|
int error = 0;
|
|
int s;
|
|
|
|
|
|
if (unit >= esh_cd.cd_ndevs || ulp == HIPPI_ULP_802)
|
|
return (ENXIO);
|
|
|
|
s = splnet();
|
|
|
|
sc = esh_cd.cd_devs[unit];
|
|
ring = sc->sc_fp_recv[ulp];
|
|
ring_ctl = &sc->sc_recv_ring_table[ulp];
|
|
index = ring->ec_index;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpclose: closing unit %d, ulp %d\n", unit, ulp);
|
|
#endif
|
|
assert(ring);
|
|
assert(ring_ctl);
|
|
|
|
/*
|
|
* Disable the ring, wait for notification, and get rid of DMA
|
|
* stuff and dynamically allocated memory. Loop, waiting to
|
|
* learn that the ring has been disabled, or the card
|
|
* has been shut down.
|
|
*/
|
|
|
|
do {
|
|
esh_send_cmd(sc, RR_CC_DISABLE_RING, ulp, ring->ec_producer);
|
|
|
|
error = tsleep((void *) &ring->ec_index, PCATCH | PRIBIO,
|
|
"esh_fpclose", 0);
|
|
if (error != 0 && error != EAGAIN) {
|
|
printf("%s: esh_fpclose: wait on ring disable bad\n",
|
|
sc->sc_dev.dv_xname);
|
|
ring->ec_index = -1;
|
|
break;
|
|
}
|
|
} while (ring->ec_index != -1 && sc->sc_flags != 0);
|
|
|
|
/*
|
|
* XXX: Gotta unload the ring, removing old descriptors!
|
|
* *Can* there be outstanding reads with a close issued!?
|
|
*/
|
|
|
|
bus_dmamap_unload(sc->sc_dmat, ring->ec_dma);
|
|
bus_dmamap_destroy(sc->sc_dmat, ring->ec_dma);
|
|
bus_dmamem_unmap(sc->sc_dmat, (caddr_t) ring->ec_descr,
|
|
RR_FP_RECV_RING_SIZE * sizeof(struct rr_descr));
|
|
bus_dmamem_free(sc->sc_dmat, &ring->ec_dmaseg, ring->ec_dma->dm_nsegs);
|
|
free(ring, M_DEVBUF);
|
|
bzero(ring_ctl, sizeof(*ring_ctl));
|
|
sc->sc_fp_recv[ulp] = NULL;
|
|
sc->sc_fp_recv_index[index] = NULL;
|
|
|
|
sc->sc_fp_rings--;
|
|
if (sc->sc_fp_rings == 0)
|
|
sc->sc_flags &= ~ESH_FL_FP_RING_UP;
|
|
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
esh_fpread(dev, uio, ioflag)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int ioflag;
|
|
{
|
|
struct proc *p = curproc;
|
|
struct iovec *iovp;
|
|
struct esh_softc *sc;
|
|
struct esh_fp_ring_ctl *ring;
|
|
struct esh_dmainfo *di;
|
|
int unit = ESHUNIT(dev);
|
|
int ulp = ESHULP(dev);
|
|
int flags = B_READ;
|
|
int error;
|
|
int i;
|
|
int s;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpread: dev %x\n", dev);
|
|
#endif
|
|
|
|
s = splnet();
|
|
if (unit >= esh_cd.cd_ndevs || ulp == HIPPI_ULP_802) {
|
|
error = ENXIO;
|
|
goto fpread_done;
|
|
}
|
|
|
|
sc = esh_cd.cd_devs[unit];
|
|
ring = sc->sc_fp_recv[ulp];
|
|
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
error = ENXIO;
|
|
goto fpread_done;
|
|
}
|
|
|
|
/* Check for validity */
|
|
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
/* XXXCDC: map not locked, rethink */
|
|
if (!uvm_useracc(uio->uio_iov[i].iov_base,
|
|
uio->uio_iov[i].iov_len,
|
|
(flags == B_READ) ? B_WRITE : B_READ)) {
|
|
error = EFAULT;
|
|
goto fpread_done;
|
|
}
|
|
/* Check for valid offsets and sizes */
|
|
|
|
if (((u_long) uio->uio_iov[i].iov_base & 3) != 0 ||
|
|
(i < uio->uio_iovcnt - 1 &&
|
|
(uio->uio_iov[i].iov_len & 3) != 0)) {
|
|
error = EFAULT;
|
|
goto fpread_done;
|
|
}
|
|
}
|
|
|
|
PHOLD(p); /* Lock process info into memory */
|
|
|
|
/* Lock down the pages */
|
|
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
iovp = &uio->uio_iov[i];
|
|
if (uvm_vslock(p, iovp->iov_base, iovp->iov_len,
|
|
VM_PROT_READ | VM_PROT_WRITE) != KERN_SUCCESS) {
|
|
/* Unlock what we've locked so far. */
|
|
for (--i; i >= 0; i--) {
|
|
iovp = &uio->uio_iov[i];
|
|
uvm_vsunlock(p, iovp->iov_base,
|
|
iovp->iov_len);
|
|
}
|
|
error = EFAULT;
|
|
goto fpread_done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Perform preliminary DMA mapping and throw the buffers
|
|
* onto the queue to be sent.
|
|
*/
|
|
|
|
di = esh_new_dmainfo(sc);
|
|
if (di == NULL) {
|
|
error = ENOMEM;
|
|
goto fpread_done;
|
|
}
|
|
di->ed_buf = NULL;
|
|
di->ed_error = 0;
|
|
di->ed_read_len = 0;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpread: ulp %d, uio offset %qd, resid %d, iovcnt %d\n",
|
|
ulp, uio->uio_offset, uio->uio_resid, uio->uio_iovcnt);
|
|
#endif
|
|
|
|
error = bus_dmamap_load_uio(sc->sc_dmat, di->ed_dma,
|
|
uio, BUS_DMA_WAITOK);
|
|
if (error) {
|
|
printf("%s: esh_fpread: bus_dmamap_load_uio "
|
|
"failed\terror code %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
error = ENOBUFS;
|
|
esh_free_dmainfo(sc, di);
|
|
goto fpread_done;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, di->ed_dma,
|
|
0, di->ed_dma->dm_mapsize,
|
|
BUS_DMASYNC_PREREAD);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpread: ulp %d, di %p, nsegs %d, uio len %d\n",
|
|
ulp, di, di->ed_dma->dm_nsegs, uio->uio_resid);
|
|
#endif
|
|
|
|
di->ed_flags |= ESH_DI_BUSY;
|
|
|
|
TAILQ_INSERT_TAIL(&ring->ec_queue, di, ed_list);
|
|
esh_fill_fp_ring(sc, ring);
|
|
|
|
while ((di->ed_flags & ESH_DI_BUSY) != 0 && error == 0) {
|
|
error = tsleep((void *) di, PCATCH | PRIBIO, "esh_fpread", 0);
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpread: ulp %d, tslept %d\n", ulp, error);
|
|
#endif
|
|
if (error) {
|
|
/*
|
|
* Remove the buffer entries from the ring; this
|
|
* is gonna require a DISCARD_PKT command, and
|
|
* will certainly disrupt things. This is why we
|
|
* can have only one outstanding read on a ring
|
|
* at a time. :-(
|
|
*/
|
|
|
|
printf("esh_fpread: was that a ^C!? error %d, ulp %d\n",
|
|
error, ulp);
|
|
if (error == EINTR || error == ERESTART)
|
|
error = 0;
|
|
if ((di->ed_flags & ESH_DI_BUSY) != 0) {
|
|
esh_flush_fp_ring(sc, ring, di);
|
|
error = EINTR;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error == 0 && di->ed_error != 0)
|
|
error = EIO;
|
|
|
|
/*
|
|
* How do we let the caller know how much has been read?
|
|
* Adjust the uio_resid stuff!?
|
|
*/
|
|
|
|
assert(uio->uio_resid >= di->ed_read_len);
|
|
|
|
uio->uio_resid -= di->ed_read_len;
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
iovp = &uio->uio_iov[i];
|
|
uvm_vsunlock(p, iovp->iov_base, iovp->iov_len);
|
|
}
|
|
|
|
PRELE(p); /* Release process info */
|
|
esh_free_dmainfo(sc, di);
|
|
|
|
fpread_done:
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpread: ulp %d, error %d\n", ulp, error);
|
|
#endif
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
|
|
int
|
|
esh_fpwrite(dev, uio, ioflag)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int ioflag;
|
|
{
|
|
struct proc *p = curproc;
|
|
struct iovec *iovp;
|
|
struct esh_softc *sc;
|
|
struct esh_send_ring_ctl *ring;
|
|
struct esh_dmainfo *di;
|
|
int unit = ESHUNIT(dev);
|
|
int ulp = ESHULP(dev);
|
|
int flags = B_WRITE;
|
|
int error;
|
|
int len;
|
|
int i;
|
|
int s;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpwrite: dev %x\n", dev);
|
|
#endif
|
|
|
|
s = splnet();
|
|
if (unit >= esh_cd.cd_ndevs || ulp == HIPPI_ULP_802) {
|
|
error = EPROTOTYPE; /* XXX: Not really kosher, but obvious */
|
|
goto fpwrite_done;
|
|
}
|
|
|
|
sc = esh_cd.cd_devs[unit];
|
|
ring = &sc->sc_send;
|
|
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
error = ENXIO;
|
|
goto fpwrite_done;
|
|
}
|
|
|
|
/* Check for validity */
|
|
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
/* XXXCDC: map not locked, rethink */
|
|
if (!uvm_useracc(uio->uio_iov[i].iov_base,
|
|
uio->uio_iov[i].iov_len,
|
|
(flags == B_READ) ? B_WRITE : B_READ)) {
|
|
error = EFAULT;
|
|
goto fpwrite_done;
|
|
}
|
|
|
|
if (((u_long) uio->uio_iov[i].iov_base & 3) != 0 ||
|
|
(i < uio->uio_iovcnt - 1 &&
|
|
(uio->uio_iov[i].iov_len & 3) != 0)) {
|
|
error = EFAULT;
|
|
goto fpwrite_done;
|
|
}
|
|
}
|
|
|
|
PHOLD(p); /* Lock process info into memory */
|
|
|
|
/* Lock down the pages */
|
|
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
iovp = &uio->uio_iov[i];
|
|
if (uvm_vslock(p, iovp->iov_base, iovp->iov_len,
|
|
VM_PROT_READ) != KERN_SUCCESS) {
|
|
/* Unlock what we've locked so far. */
|
|
for (--i; i >= 0; i--) {
|
|
iovp = &uio->uio_iov[i];
|
|
uvm_vsunlock(p, iovp->iov_base,
|
|
iovp->iov_len);
|
|
}
|
|
error = EFAULT;
|
|
goto fpwrite_done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Perform preliminary DMA mapping and throw the buffers
|
|
* onto the queue to be sent.
|
|
*/
|
|
|
|
di = esh_new_dmainfo(sc);
|
|
if (di == NULL) {
|
|
error = ENOMEM;
|
|
goto fpwrite_done;
|
|
}
|
|
di->ed_buf = NULL;
|
|
di->ed_error = 0;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpwrite: uio offset %qd, resid %d, iovcnt %d\n",
|
|
uio->uio_offset, uio->uio_resid, uio->uio_iovcnt);
|
|
#endif
|
|
|
|
error = bus_dmamap_load_uio(sc->sc_dmat, di->ed_dma,
|
|
uio, BUS_DMA_WAITOK);
|
|
if (error) {
|
|
printf("%s: esh_fpwrite: bus_dmamap_load_uio "
|
|
"failed\terror code %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
error = ENOBUFS;
|
|
esh_free_dmainfo(sc, di);
|
|
goto fpwrite_done;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, di->ed_dma,
|
|
0, di->ed_dma->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpwrite: di %p, nsegs %d, uio len %d\n",
|
|
di, di->ed_dma->dm_nsegs, uio->uio_resid);
|
|
#endif
|
|
|
|
len = di->ed_dma->dm_mapsize;
|
|
di->ed_flags |= ESH_DI_BUSY;
|
|
|
|
TAILQ_INSERT_TAIL(&ring->ec_di_queue, di, ed_list);
|
|
eshstart(&sc->sc_if);
|
|
|
|
while ((di->ed_flags & ESH_DI_BUSY) != 0 && error == 0) {
|
|
error = tsleep((void *) di, PRIBIO, "esh_fpwrite", 0);
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpwrite: tslept %d\n", error);
|
|
#endif
|
|
if (error) {
|
|
printf("esh_fpwrite: was that a ^C!? Shouldn't be! Error %d\n",
|
|
error);
|
|
if (error == EINTR || error == ERESTART)
|
|
error = 0;
|
|
if ((di->ed_flags & ESH_DI_BUSY) != 0) {
|
|
panic("interrupted eshwrite!");
|
|
#if 0
|
|
/* Better do *something* here! */
|
|
esh_flush_send_ring(sc, di);
|
|
#endif
|
|
error = EINTR;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error == 0 && di->ed_error != 0)
|
|
error = EIO;
|
|
|
|
/*
|
|
* How do we let the caller know how much has been written?
|
|
* Adjust the uio_resid stuff!?
|
|
*/
|
|
|
|
uio->uio_resid -= len;
|
|
uio->uio_offset += len;
|
|
|
|
for (i = 0; i < uio->uio_iovcnt; i++) {
|
|
iovp = &uio->uio_iov[i];
|
|
uvm_vsunlock(p, iovp->iov_base, iovp->iov_len);
|
|
}
|
|
|
|
PRELE(p); /* Release process info */
|
|
esh_free_dmainfo(sc, di);
|
|
|
|
fpwrite_done:
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpwrite: error %d\n", error);
|
|
#endif
|
|
splx(s);
|
|
return error;
|
|
|
|
/* To shut up compiler */
|
|
error = physio(esh_fpstrategy, NULL, dev, B_WRITE, minphys, uio);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
esh_fpstrategy(bp)
|
|
struct buf *bp;
|
|
{
|
|
struct esh_softc *sc;
|
|
int unit = ESHUNIT(bp->b_dev);
|
|
int ulp = ESHULP(bp->b_dev);
|
|
int error = 0;
|
|
int s;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpstrategy: starting, bcount %ld, flags %lx, dev %x\n"
|
|
"\tunit %x, ulp %d\n",
|
|
bp->b_bcount, bp->b_flags, bp->b_dev, unit, ulp);
|
|
#endif
|
|
|
|
s = splnet();
|
|
if (unit >= esh_cd.cd_ndevs || ulp == HIPPI_ULP_802) {
|
|
bp->b_error = ENXIO;
|
|
bp->b_flags |= B_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
sc = esh_cd.cd_devs[unit];
|
|
|
|
if (bp->b_bcount == 0)
|
|
goto done;
|
|
|
|
#define UP_FLAGS (ESH_FL_INITIALIZED | ESH_FL_RUNCODE_UP)
|
|
|
|
if ((sc->sc_flags & UP_FLAGS) != UP_FLAGS) {
|
|
bp->b_error = EBUSY;
|
|
bp->b_flags |= B_ERROR;
|
|
goto done;
|
|
}
|
|
#undef UP_FLAGS
|
|
|
|
if (bp->b_flags & B_READ) {
|
|
/*
|
|
* Perform preliminary DMA mapping and throw the buffers
|
|
* onto the queue to be sent.
|
|
*/
|
|
|
|
struct esh_fp_ring_ctl *ring = sc->sc_fp_recv[ulp];
|
|
struct esh_dmainfo *di = esh_new_dmainfo(sc);
|
|
|
|
if (di == NULL) {
|
|
bp->b_error = ENOMEM;
|
|
bp->b_flags |= B_ERROR;
|
|
goto done;
|
|
}
|
|
di->ed_buf = bp;
|
|
error = bus_dmamap_load(sc->sc_dmat, di->ed_dma,
|
|
bp->b_data, bp->b_bcount,
|
|
bp->b_proc, BUS_DMA_WAITOK);
|
|
if (error) {
|
|
printf("%s: esh_fpstrategy: "
|
|
"bus_dmamap_load "
|
|
"failed\terror code %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
bp->b_error = ENOBUFS;
|
|
bp->b_flags |= B_ERROR;
|
|
esh_free_dmainfo(sc, di);
|
|
goto done;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, di->ed_dma,
|
|
0, di->ed_dma->dm_mapsize,
|
|
BUS_DMASYNC_PREREAD);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("fpstrategy: di %p\n", di);
|
|
#endif
|
|
|
|
TAILQ_INSERT_TAIL(&ring->ec_queue, di, ed_list);
|
|
esh_fill_fp_ring(sc, ring);
|
|
} else {
|
|
/*
|
|
* Queue up the buffer for future sending. If the card
|
|
* isn't already transmitting, give it a kick.
|
|
*/
|
|
|
|
struct esh_send_ring_ctl *ring = &sc->sc_send;
|
|
|
|
if (ring->ec_queue != NULL) {
|
|
assert(ring->ec_lastqueue);
|
|
|
|
ring->ec_lastqueue->b_actf = bp;
|
|
} else {
|
|
ring->ec_queue = bp;
|
|
}
|
|
ring->ec_lastqueue = bp;
|
|
bp->b_actf = NULL;
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpstrategy: ready to call eshstart to write!\n");
|
|
#endif
|
|
eshstart(&sc->sc_if);
|
|
}
|
|
splx(s);
|
|
return;
|
|
|
|
done:
|
|
splx(s);
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fpstrategy: failing, bp->b_error %d!\n",
|
|
bp->b_error);
|
|
#endif
|
|
biodone(bp);
|
|
}
|
|
|
|
|
|
int
|
|
esh_fpioctl(dev, cmd, data, fflag, p)
|
|
dev_t dev;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
int fflag;
|
|
struct proc *p;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
void
|
|
esh_fpstop(tp, rw)
|
|
struct tty *tp;
|
|
int rw;
|
|
{
|
|
}
|
|
|
|
int
|
|
esh_fppoll(dev, events, p)
|
|
dev_t dev;
|
|
int events;
|
|
struct proc *p;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Handle interrupts. This is basicly event handling code; version two
|
|
* firmware tries to speed things up by just telling us the location
|
|
* of the producer and consumer indices, rather than sending us an event.
|
|
*/
|
|
|
|
int
|
|
eshintr(arg)
|
|
void *arg;
|
|
{
|
|
register struct esh_softc *sc = arg;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
u_int32_t rc_offsets;
|
|
u_int32_t misc_host_ctl;
|
|
int rc_send_consumer = 0; /* shut up compiler */
|
|
int rc_snap_ring_consumer = 0; /* ditto */
|
|
u_int8_t fp_ring_consumer[RR_MAX_RECV_RING];
|
|
int start_consumer;
|
|
int ret = 0;
|
|
|
|
int okay = 0;
|
|
int blah = 0;
|
|
char buf[100];
|
|
char t[100];
|
|
|
|
|
|
/* Check to see if this is our interrupt. */
|
|
|
|
misc_host_ctl = bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL);
|
|
if ((misc_host_ctl & RR_MH_INTERRUPT) == 0)
|
|
return 0;
|
|
|
|
/* If we can't do anything with the interrupt, just drop it */
|
|
|
|
if (sc->sc_flags == 0)
|
|
return 1;
|
|
|
|
rc_offsets = bus_space_read_4(iot, ioh, RR_EVENT_PRODUCER);
|
|
sc->sc_event_producer = rc_offsets & 0xff;
|
|
if (sc->sc_version == 2) {
|
|
int i;
|
|
|
|
buf[0] = '\0';
|
|
strcat(buf, "rc: ");
|
|
rc_send_consumer = (rc_offsets >> 8) & 0xff;
|
|
rc_snap_ring_consumer = (rc_offsets >> 16) & 0xff;
|
|
for (i = 0; i < RR_MAX_RECV_RING; i += 4) {
|
|
rc_offsets =
|
|
bus_space_read_4(iot, ioh,
|
|
RR_RUNCODE_RECV_CONS + i);
|
|
/* XXX: should do this right! */
|
|
NTOHL(rc_offsets);
|
|
*((u_int32_t *) &fp_ring_consumer[i]) = rc_offsets;
|
|
sprintf(t, "%.8x|", rc_offsets);
|
|
strcat(buf, t);
|
|
}
|
|
}
|
|
start_consumer = sc->sc_event_consumer;
|
|
|
|
/* Take care of synchronizing DMA with entries we read... */
|
|
|
|
esh_dma_sync(sc, sc->sc_event_ring,
|
|
start_consumer, sc->sc_event_producer,
|
|
RR_EVENT_RING_SIZE, sizeof(struct rr_event), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (sc->sc_event_consumer != sc->sc_event_producer) {
|
|
struct rr_event *event =
|
|
&sc->sc_event_ring[sc->sc_event_consumer];
|
|
|
|
#ifdef ESH_PRINTF
|
|
if (event->re_code != RR_EC_WATCHDOG &&
|
|
event->re_code != RR_EC_STATS_UPDATE &&
|
|
event->re_code != RR_EC_SET_CMD_CONSUMER) {
|
|
printf("%s: event code %x, ring %d, index %d\n",
|
|
sc->sc_dev.dv_xname, event->re_code,
|
|
event->re_ring, event->re_index);
|
|
if (okay == 0)
|
|
printf("%s\n", buf);
|
|
okay = 1;
|
|
}
|
|
#endif
|
|
ret = 1; /* some action was taken by card */
|
|
|
|
switch(event->re_code) {
|
|
case RR_EC_RUNCODE_UP:
|
|
printf("%s: firmware up\n", sc->sc_dev.dv_xname);
|
|
sc->sc_flags |= ESH_FL_RUNCODE_UP;
|
|
esh_send_cmd(sc, RR_CC_WATCHDOG, 0, 0);
|
|
esh_send_cmd(sc, RR_CC_UPDATE_STATS, 0, 0);
|
|
#ifdef ESH_PRINTF
|
|
eshstatus(sc);
|
|
#endif
|
|
if ((ifp->if_flags & IFF_UP) != 0)
|
|
esh_init_snap_ring(sc);
|
|
if (sc->sc_fp_rings > 0)
|
|
esh_init_fp_rings(sc);
|
|
|
|
/*
|
|
* XXX: crank up FP rings that might be
|
|
* in use after a reset!
|
|
*/
|
|
wakeup((void *) sc);
|
|
break;
|
|
|
|
case RR_EC_WATCHDOG:
|
|
/*
|
|
* Record the watchdog event.
|
|
* This is checked by eshwatchdog
|
|
*/
|
|
|
|
sc->sc_watchdog = 1;
|
|
break;
|
|
|
|
case RR_EC_SET_CMD_CONSUMER:
|
|
sc->sc_cmd_consumer = event->re_index;
|
|
break;
|
|
|
|
case RR_EC_LINK_ON:
|
|
printf("%s: link up\n", sc->sc_dev.dv_xname);
|
|
sc->sc_flags |= ESH_FL_LINK_UP;
|
|
|
|
esh_send_cmd(sc, RR_CC_WATCHDOG, 0, 0);
|
|
esh_send_cmd(sc, RR_CC_UPDATE_STATS, 0, 0);
|
|
if ((sc->sc_flags & ESH_FL_SNAP_RING_UP) != 0) {
|
|
/*
|
|
* Interface is now `running', with no
|
|
* output active.
|
|
*/
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
/* Attempt to start output, if any. */
|
|
}
|
|
eshstart(ifp);
|
|
break;
|
|
|
|
case RR_EC_LINK_OFF:
|
|
sc->sc_flags &= ~ESH_FL_LINK_UP;
|
|
printf("%s: link down\n", sc->sc_dev.dv_xname);
|
|
break;
|
|
|
|
/*
|
|
* These are all unexpected. We need to handle all
|
|
* of them, though.
|
|
*/
|
|
|
|
case RR_EC_INVALID_CMD:
|
|
case RR_EC_INTERNAL_ERROR:
|
|
case RR2_EC_INTERNAL_ERROR:
|
|
case RR_EC_BAD_SEND_RING:
|
|
case RR_EC_BAD_SEND_BUF:
|
|
case RR_EC_BAD_SEND_DESC:
|
|
case RR_EC_RECV_RING_FLUSH:
|
|
case RR_EC_RECV_ERROR_INFO:
|
|
case RR_EC_BAD_RECV_BUF:
|
|
case RR_EC_BAD_RECV_DESC:
|
|
case RR_EC_BAD_RECV_RING:
|
|
case RR_EC_UNIMPLEMENTED:
|
|
printf("%s: unexpected event %x;"
|
|
"shutting down interface\n",
|
|
sc->sc_dev.dv_xname, event->re_code);
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
sc->sc_flags = ESH_FL_CRASHED;
|
|
#ifdef ESH_PRINTF
|
|
eshstatus(sc);
|
|
#endif
|
|
break;
|
|
|
|
#define CALLOUT(a) case a: \
|
|
printf("%s: Event " #a " received -- " \
|
|
"ring %d index %d timestamp %x\n", \
|
|
sc->sc_dev.dv_xname, event->re_ring, event->re_index, \
|
|
event->re_timestamp); \
|
|
break;
|
|
|
|
CALLOUT(RR_EC_NO_RING_FOR_ULP);
|
|
CALLOUT(RR_EC_REJECTING); /* dropping packets */
|
|
#undef CALLOUT
|
|
|
|
/* Send events */
|
|
|
|
case RR_EC_PACKET_SENT: /* not used in firmware 2.x */
|
|
ifp->if_opackets++;
|
|
/* FALLTHROUGH */
|
|
|
|
case RR_EC_SET_SND_CONSUMER:
|
|
assert(sc->sc_version == 1);
|
|
/* FALLTHROUGH */
|
|
|
|
case RR_EC_SEND_RING_LOW:
|
|
eshstart_cleanup(sc, event->re_index, 0);
|
|
break;
|
|
|
|
|
|
case RR_EC_CONN_REJECT:
|
|
case RR_EC_CAMPON_TIMEOUT:
|
|
case RR_EC_CONN_TIMEOUT:
|
|
case RR_EC_DISCONN_ERR:
|
|
case RR_EC_INTERNAL_PARITY:
|
|
case RR_EC_TX_IDLE:
|
|
case RR_EC_SEND_LINK_OFF:
|
|
eshstart_cleanup(sc, event->re_index, event->re_code);
|
|
break;
|
|
|
|
/* Receive events */
|
|
|
|
case RR_EC_RING_ENABLED:
|
|
if (event->re_ring == HIPPI_ULP_802) {
|
|
rc_snap_ring_consumer = 0; /* prevent read */
|
|
sc->sc_flags |= ESH_FL_SNAP_RING_UP;
|
|
esh_fill_snap_ring(sc);
|
|
|
|
if (sc->sc_flags & ESH_FL_LINK_UP) {
|
|
/*
|
|
* Interface is now `running', with no
|
|
* output active.
|
|
*/
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
/* Attempt to start output, if any. */
|
|
|
|
eshstart(ifp);
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
if (event->re_index != 0)
|
|
printf("ENABLE snap ring -- index %d instead of 0!\n",
|
|
event->re_index);
|
|
#endif
|
|
} else {
|
|
struct esh_fp_ring_ctl *ring =
|
|
sc->sc_fp_recv[event->re_ring];
|
|
|
|
sc->sc_flags |= ESH_FL_FP_RING_UP;
|
|
#ifdef ESH_PRINTF
|
|
printf("eshintr: FP ring %d up\n",
|
|
event->re_ring);
|
|
#endif
|
|
|
|
sc->sc_fp_recv_index[event->re_index] = ring;
|
|
ring->ec_index = event->re_index;
|
|
wakeup((void *) &ring->ec_ulp);
|
|
}
|
|
break;
|
|
|
|
case RR_EC_RING_DISABLED:
|
|
#ifdef ESH_PRINTF
|
|
printf("eshintr: disabling ring %d\n",
|
|
event->re_ring);
|
|
#endif
|
|
if (event->re_ring == HIPPI_ULP_802) {
|
|
struct rr_ring_ctl *ring =
|
|
sc->sc_recv_ring_table + HIPPI_ULP_802;
|
|
bzero(ring, sizeof(*ring));
|
|
sc->sc_flags &= ~ESH_FL_CLOSING_SNAP;
|
|
sc->sc_flags &= ~ESH_FL_SNAP_RING_UP;
|
|
while (sc->sc_snap_recv.ec_consumer
|
|
!= sc->sc_snap_recv.ec_producer) {
|
|
struct mbuf *m0;
|
|
u_int16_t offset = sc->sc_snap_recv.ec_consumer;
|
|
|
|
bus_dmamap_unload(sc->sc_dmat,
|
|
sc->sc_snap_recv.ec_dma[offset]);
|
|
MFREE(sc->sc_snap_recv.ec_m[offset], m0);
|
|
sc->sc_snap_recv.ec_m[offset] = NULL;
|
|
sc->sc_snap_recv.ec_consumer =
|
|
NEXT_RECV(sc->sc_snap_recv.ec_consumer);
|
|
}
|
|
sc->sc_snap_recv.ec_consumer =
|
|
rc_snap_ring_consumer;
|
|
sc->sc_snap_recv.ec_producer =
|
|
rc_snap_ring_consumer;
|
|
wakeup((void *) &sc->sc_snap_recv);
|
|
} else {
|
|
struct esh_fp_ring_ctl *recv =
|
|
sc->sc_fp_recv[event->re_ring];
|
|
assert(recv != NULL);
|
|
recv->ec_consumer = recv->ec_producer =
|
|
fp_ring_consumer[recv->ec_index];
|
|
recv->ec_index = -1;
|
|
wakeup((void *) &recv->ec_index);
|
|
}
|
|
break;
|
|
|
|
case RR_EC_RING_ENABLE_ERR:
|
|
if (event->re_ring == HIPPI_ULP_802) {
|
|
printf("%s: unable to enable SNAP ring!?\n\t"
|
|
"shutting down interface\n",
|
|
sc->sc_dev.dv_xname);
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
#ifdef ESH_PRINTF
|
|
eshstatus(sc);
|
|
#endif
|
|
} else {
|
|
/*
|
|
* If we just leave the ring index as-is,
|
|
* the driver will figure out that
|
|
* we failed to open the ring.
|
|
*/
|
|
wakeup((void *) &(sc->sc_fp_recv[event->re_ring]->ec_ulp));
|
|
}
|
|
break;
|
|
|
|
case RR_EC_PACKET_DISCARDED:
|
|
/*
|
|
* Determine the dmainfo for the current packet
|
|
* we just discarded and wake up the waiting
|
|
* process.
|
|
*
|
|
* This should never happen on the network ring!
|
|
*/
|
|
|
|
if (event->re_ring == HIPPI_ULP_802) {
|
|
printf("%s: discard on SNAP ring!?\n\t"
|
|
"shutting down interface\n",
|
|
sc->sc_dev.dv_xname);
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
sc->sc_flags = ESH_FL_CRASHED;
|
|
} else {
|
|
struct esh_fp_ring_ctl *ring =
|
|
sc->sc_fp_recv[event->re_ring];
|
|
struct esh_dmainfo *di =
|
|
ring->ec_cur_dmainfo;
|
|
|
|
if (di == NULL)
|
|
di = ring->ec_dmainfo[ring->ec_producer];
|
|
printf("eshintr: DISCARD: index %d,"
|
|
"ring prod %d, di %p, ring[index] %p\n",
|
|
event->re_index, ring->ec_producer, di,
|
|
ring->ec_dmainfo[event->re_index]);
|
|
|
|
if (di == NULL)
|
|
di = ring->ec_dmainfo[event->re_index];
|
|
|
|
if (di == NULL) {
|
|
printf("eshintr: DISCARD: NULL di, skipping...\n");
|
|
break;
|
|
}
|
|
|
|
di->ed_flags &=
|
|
~(ESH_DI_READING | ESH_DI_BUSY);
|
|
wakeup((void *) &di->ed_flags);
|
|
}
|
|
break;
|
|
|
|
case RR_EC_OUT_OF_BUF:
|
|
case RR_EC_RECV_RING_OUT:
|
|
case RR_EC_RECV_RING_LOW:
|
|
break;
|
|
|
|
case RR_EC_SET_RECV_CONSUMER:
|
|
case RR_EC_PACKET_RECVED:
|
|
if (event->re_ring == HIPPI_ULP_802)
|
|
esh_read_snap_ring(sc, event->re_index, 0);
|
|
else if (sc->sc_fp_recv[event->re_ring] != NULL)
|
|
esh_read_fp_ring(sc, event->re_index, 0,
|
|
event->re_ring);
|
|
break;
|
|
|
|
case RR_EC_RECV_IDLE:
|
|
case RR_EC_PARITY_ERR:
|
|
case RR_EC_LLRC_ERR:
|
|
case RR_EC_PKT_LENGTH_ERR:
|
|
case RR_EC_IP_HDR_CKSUM_ERR:
|
|
case RR_EC_DATA_CKSUM_ERR:
|
|
case RR_EC_SHORT_BURST_ERR:
|
|
case RR_EC_RECV_LINK_OFF:
|
|
case RR_EC_FLAG_SYNC_ERR:
|
|
case RR_EC_FRAME_ERR:
|
|
case RR_EC_STATE_TRANS_ERR:
|
|
case RR_EC_NO_READY_PULSE:
|
|
if (event->re_ring == HIPPI_ULP_802) {
|
|
esh_read_snap_ring(sc, event->re_index,
|
|
event->re_code);
|
|
} else {
|
|
struct esh_fp_ring_ctl *r;
|
|
|
|
r = sc->sc_fp_recv[event->re_ring];
|
|
if (r)
|
|
r->ec_error = event->re_code;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* Statistics events can be ignored for now. They might become
|
|
* necessary if we have to deliver stats on demand, rather than
|
|
* just returning the statistics block of memory.
|
|
*/
|
|
|
|
case RR_EC_STATS_UPDATE:
|
|
case RR_EC_STATS_RETRIEVED:
|
|
case RR_EC_TRACE:
|
|
break;
|
|
|
|
default:
|
|
printf("%s: Bogus event code %x, "
|
|
"ring %d, index %d, timestamp %x\n",
|
|
sc->sc_dev.dv_xname, event->re_code,
|
|
event->re_ring, event->re_index,
|
|
event->re_timestamp);
|
|
break;
|
|
}
|
|
|
|
sc->sc_event_consumer = NEXT_EVENT(sc->sc_event_consumer);
|
|
}
|
|
|
|
/* Do the receive and send ring processing for version 2 RunCode */
|
|
|
|
if (sc->sc_version == 2) {
|
|
int i;
|
|
if (sc->sc_send.ec_consumer != rc_send_consumer) {
|
|
eshstart_cleanup(sc, rc_send_consumer, 0);
|
|
ret = 1;
|
|
blah++;
|
|
}
|
|
if (sc->sc_snap_recv.ec_consumer != rc_snap_ring_consumer &&
|
|
(sc->sc_flags & ESH_FL_SNAP_RING_UP) != 0) {
|
|
esh_read_snap_ring(sc, rc_snap_ring_consumer, 0);
|
|
ret = 1;
|
|
blah++;
|
|
}
|
|
for (i = 0; i < RR_MAX_RECV_RING; i++) {
|
|
struct esh_fp_ring_ctl *r = sc->sc_fp_recv_index[i];
|
|
|
|
if (r != NULL &&
|
|
r->ec_consumer != fp_ring_consumer[i]) {
|
|
#ifdef ESH_PRINTF
|
|
printf("eshintr: performed read on ring %d, index %d\n",
|
|
r->ec_ulp, i);
|
|
#endif
|
|
blah++;
|
|
esh_read_fp_ring(sc, fp_ring_consumer[i],
|
|
0, r->ec_ulp);
|
|
fp_ring_consumer[i] = r->ec_consumer;
|
|
}
|
|
}
|
|
if (blah != 0 && okay == 0) {
|
|
okay = 1;
|
|
#ifdef ESH_PRINTF
|
|
printf("%s\n", buf);
|
|
#endif
|
|
}
|
|
rc_offsets = (sc->sc_snap_recv.ec_consumer << 16) |
|
|
(sc->sc_send.ec_consumer << 8) | sc->sc_event_consumer;
|
|
} else {
|
|
rc_offsets = sc->sc_event_consumer;
|
|
}
|
|
|
|
esh_dma_sync(sc, sc->sc_event_ring,
|
|
start_consumer, sc->sc_event_producer,
|
|
RR_EVENT_RING_SIZE, sizeof(struct rr_event), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
/* Write out new values for the FP segments... */
|
|
|
|
if (sc->sc_version == 2) {
|
|
int i;
|
|
u_int32_t u;
|
|
|
|
buf[0] = '\0';
|
|
strcat(buf, "drv: ");
|
|
for (i = 0; i < RR_MAX_RECV_RING; i += 4) {
|
|
/* XXX: should do this right! */
|
|
u = *((u_int32_t *) &fp_ring_consumer[i]);
|
|
sprintf(t, "%.8x|", u);
|
|
strcat(buf, t);
|
|
NTOHL(u);
|
|
bus_space_write_4(iot, ioh,
|
|
RR_DRIVER_RECV_CONS + i, u);
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
if (okay == 1)
|
|
printf("%s\n", buf);
|
|
#endif
|
|
|
|
buf[0] = '\0';
|
|
strcat(buf, "rcn: ");
|
|
for (i = 0; i < RR_MAX_RECV_RING; i += 4) {
|
|
u = bus_space_read_4(iot, ioh,
|
|
RR_RUNCODE_RECV_CONS + i);
|
|
/* XXX: should do this right! */
|
|
NTOHL(u);
|
|
sprintf(t, "%.8x|", u);
|
|
strcat(buf, t);
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
if (okay == 1)
|
|
printf("%s\n", buf);
|
|
#endif
|
|
}
|
|
|
|
/* Clear interrupt */
|
|
bus_space_write_4(iot, ioh, RR_EVENT_CONSUMER, rc_offsets);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
|
|
/*
|
|
* Start output on the interface. Always called at splnet().
|
|
* Check to see if there are any mbufs that didn't get sent the
|
|
* last time this was called. If there are none, get more mbufs
|
|
* and send 'em.
|
|
*
|
|
* For now, we only send one packet at a time.
|
|
*/
|
|
|
|
void
|
|
eshstart(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
register struct esh_softc *sc = ifp->if_softc;
|
|
struct esh_send_ring_ctl *send = &sc->sc_send;
|
|
struct mbuf *m = NULL;
|
|
int error;
|
|
|
|
/* Don't transmit if interface is busy or not running */
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("eshstart: ready to look; flags %x\n", sc->sc_flags);
|
|
#endif
|
|
|
|
#define LINK_UP_FLAGS (ESH_FL_LINK_UP | ESH_FL_INITIALIZED | ESH_FL_RUNCODE_UP)
|
|
if ((sc->sc_flags & LINK_UP_FLAGS) != LINK_UP_FLAGS)
|
|
return;
|
|
#undef LINK_UP_FLAGS
|
|
|
|
#ifdef ESH_PRINTF
|
|
if (esh_check(sc))
|
|
return;
|
|
#endif
|
|
|
|
/* If we have sent the current packet, get another */
|
|
|
|
while ((sc->sc_flags & ESH_FL_SNAP_RING_UP) != 0 &&
|
|
(m = send->ec_cur_mbuf) == NULL && send->ec_cur_buf == NULL &&
|
|
send->ec_cur_dmainfo == NULL) {
|
|
IF_DEQUEUE(&ifp->if_snd, m);
|
|
if (m == 0) /* not really needed */
|
|
break;
|
|
|
|
#if NBPFILTER > 0
|
|
if (ifp->if_bpf) {
|
|
/*
|
|
* On output, the raw packet has a eight-byte CCI
|
|
* field prepended. On input, there is no such field.
|
|
* The bpf expects the packet to look the same in both
|
|
* places, so we temporarily lop off the prepended CCI
|
|
* field here, then replace it. Ugh.
|
|
*
|
|
* XXX: Need to use standard mbuf manipulation
|
|
* functions, first mbuf may be less than
|
|
* 8 bytes long.
|
|
*/
|
|
|
|
m->m_len -= 8;
|
|
m->m_data += 8;
|
|
m->m_pkthdr.len -= 8;
|
|
bpf_mtap(ifp->if_bpf, m);
|
|
m->m_len += 8;
|
|
m->m_data -= 8;
|
|
m->m_pkthdr.len += 8;
|
|
}
|
|
#endif
|
|
|
|
send->ec_len = m->m_pkthdr.len;
|
|
m = send->ec_cur_mbuf = esh_adjust_mbufs(sc, m);
|
|
if (m == NULL)
|
|
continue;
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, send->ec_dma,
|
|
m, BUS_DMA_NOWAIT);
|
|
if (error)
|
|
panic("%s: eshstart: "
|
|
"bus_dmamap_load_mbuf failed err %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
send->ec_offset = 0;
|
|
}
|
|
|
|
/*
|
|
* If there are no network packets to send, see if there
|
|
* are any FP packets to send.
|
|
*
|
|
* XXX: Some users may disagree with these priorities;
|
|
* this reduces network latency by increasing FP latency...
|
|
* Note that it also means that FP packets can get
|
|
* locked out so that they *never* get sent, if the
|
|
* network constantly fills up the pipe. Not good!
|
|
*/
|
|
|
|
if ((sc->sc_flags & ESH_FL_FP_RING_UP) != 0 &&
|
|
send->ec_cur_mbuf == NULL && send->ec_cur_buf == NULL &&
|
|
send->ec_cur_dmainfo == NULL && send->ec_queue != NULL) {
|
|
struct buf *bp;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("eshstart: getting a buf from send->ec_queue %p\n",
|
|
send->ec_queue);
|
|
#endif
|
|
|
|
bp = send->ec_cur_buf = send->ec_queue;
|
|
send->ec_queue = send->ec_queue->b_actf;
|
|
if (send->ec_queue == NULL)
|
|
send->ec_lastqueue = NULL;
|
|
send->ec_offset = 0;
|
|
send->ec_len = bp->b_bcount;
|
|
|
|
/*
|
|
* Determine the DMA mapping for the buffer.
|
|
* If this is too large, what do we do!?
|
|
*/
|
|
|
|
error = bus_dmamap_load(sc->sc_dmat, send->ec_dma,
|
|
bp->b_data, bp->b_bcount, bp->b_proc,
|
|
BUS_DMA_NOWAIT);
|
|
|
|
if (error)
|
|
panic("%s: eshstart: "
|
|
"bus_dmamap_load failed err %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
}
|
|
|
|
/*
|
|
* If there are no packets from strategy to send, see if there
|
|
* are any FP packets to send from fpwrite.
|
|
*/
|
|
|
|
if ((sc->sc_flags & ESH_FL_FP_RING_UP) != 0 &&
|
|
send->ec_cur_mbuf == NULL && send->ec_cur_buf == NULL &&
|
|
send->ec_cur_dmainfo == NULL) {
|
|
struct esh_dmainfo *di;
|
|
|
|
di = TAILQ_FIRST(&send->ec_di_queue);
|
|
if (di == NULL)
|
|
return;
|
|
TAILQ_REMOVE(&send->ec_di_queue, di, ed_list);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("eshstart: getting a di from send->ec_di_queue %p\n",
|
|
&send->ec_di_queue);
|
|
#endif
|
|
|
|
send->ec_cur_dmainfo = di;
|
|
send->ec_offset = 0;
|
|
send->ec_len = di->ed_dma->dm_mapsize;
|
|
}
|
|
|
|
if (send->ec_cur_mbuf == NULL && send->ec_cur_buf == NULL &&
|
|
send->ec_cur_dmainfo == NULL)
|
|
return;
|
|
|
|
assert(send->ec_len);
|
|
assert(send->ec_dma->dm_nsegs ||
|
|
send->ec_cur_dmainfo->ed_dma->dm_nsegs);
|
|
assert(send->ec_cur_mbuf || send->ec_cur_buf || send->ec_cur_dmainfo);
|
|
|
|
esh_send(sc);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Put the buffers from the send dmamap into the descriptors and
|
|
* send 'em off...
|
|
*/
|
|
|
|
static void
|
|
esh_send(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
struct esh_send_ring_ctl *send = &sc->sc_send;
|
|
u_int start_producer = send->ec_producer;
|
|
bus_dmamap_t dma;
|
|
|
|
if (send->ec_cur_dmainfo != NULL)
|
|
dma = send->ec_cur_dmainfo->ed_dma;
|
|
else
|
|
dma = send->ec_dma;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_send: producer %x consumer %x nsegs %d\n",
|
|
send->ec_producer, send->ec_consumer, dma->dm_nsegs);
|
|
#endif
|
|
|
|
esh_dma_sync(sc, send->ec_descr, send->ec_producer, send->ec_consumer,
|
|
RR_SEND_RING_SIZE, sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (NEXT_SEND(send->ec_producer) != send->ec_consumer &&
|
|
send->ec_offset < dma->dm_nsegs) {
|
|
int offset = send->ec_producer;
|
|
|
|
send->ec_descr[offset].rd_buffer_addr =
|
|
dma->dm_segs[send->ec_offset].ds_addr;
|
|
send->ec_descr[offset].rd_length =
|
|
dma->dm_segs[send->ec_offset].ds_len;
|
|
send->ec_descr[offset].rd_control = 0;
|
|
|
|
if (send->ec_offset == 0) {
|
|
/* Start of the dmamap... */
|
|
send->ec_descr[offset].rd_control |=
|
|
RR_CT_PACKET_START;
|
|
}
|
|
|
|
if (send->ec_offset + 1 == dma->dm_nsegs) {
|
|
send->ec_descr[offset].rd_control |= RR_CT_PACKET_END;
|
|
}
|
|
|
|
send->ec_offset++;
|
|
send->ec_producer = NEXT_SEND(send->ec_producer);
|
|
}
|
|
|
|
/*
|
|
* XXX: we could optimize the dmamap_sync to just get what we've
|
|
* just set up, rather than the whole buffer...
|
|
*/
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, dma, 0, dma->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
esh_dma_sync(sc, send->ec_descr,
|
|
start_producer, send->ec_consumer,
|
|
RR_SEND_RING_SIZE, sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
#ifdef ESH_PRINTF
|
|
if (send->ec_offset != dma->dm_nsegs)
|
|
printf("eshstart: couldn't fit packet in send ring!\n");
|
|
#endif
|
|
|
|
if (sc->sc_version == 1) {
|
|
esh_send_cmd(sc, RR_CC_SET_SEND_PRODUCER,
|
|
0, send->ec_producer);
|
|
} else {
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_SEND_PRODUCER, send->ec_producer);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Cleanup for the send routine. When the NIC sends us an event to
|
|
* let us know that it has consumed our buffers, we need to free the
|
|
* buffers, and possibly send another packet.
|
|
*/
|
|
|
|
static void
|
|
eshstart_cleanup(sc, consumer, error)
|
|
register struct esh_softc *sc;
|
|
u_int16_t consumer;
|
|
int error;
|
|
{
|
|
struct esh_send_ring_ctl *send = &sc->sc_send;
|
|
int start_consumer = send->ec_consumer;
|
|
bus_dmamap_t dma;
|
|
|
|
if (send->ec_cur_dmainfo != NULL)
|
|
dma = send->ec_cur_dmainfo->ed_dma;
|
|
else
|
|
dma = send->ec_dma;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("eshstart_cleanup: consumer %x, send->consumer %x\n",
|
|
consumer, send->ec_consumer);
|
|
#endif
|
|
|
|
esh_dma_sync(sc, send->ec_descr,
|
|
send->ec_consumer, consumer,
|
|
RR_SEND_RING_SIZE, sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (send->ec_consumer != consumer) {
|
|
assert(dma->dm_nsegs);
|
|
assert(send->ec_cur_mbuf || send->ec_cur_buf ||
|
|
send->ec_cur_dmainfo);
|
|
|
|
if (send->ec_descr[send->ec_consumer].rd_control &
|
|
RR_CT_PACKET_END) {
|
|
#ifdef ESH_PRINT
|
|
printf("eshstart_cleanup: dmamap_sync mapsize %d\n",
|
|
send->ec_dma->dm_mapsize);
|
|
#endif
|
|
bus_dmamap_sync(sc->sc_dmat, dma, 0, dma->dm_mapsize,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, dma);
|
|
if (send->ec_cur_mbuf) {
|
|
m_freem(send->ec_cur_mbuf);
|
|
send->ec_cur_mbuf = NULL;
|
|
} else if (send->ec_cur_dmainfo) {
|
|
send->ec_cur_dmainfo->ed_flags &= ~ESH_DI_BUSY;
|
|
send->ec_cur_dmainfo->ed_error =
|
|
(send->ec_error ? send->ec_error : error);
|
|
send->ec_error = 0;
|
|
wakeup((void *) send->ec_cur_dmainfo);
|
|
send->ec_cur_dmainfo = NULL;
|
|
} else if (send->ec_cur_buf) {
|
|
biodone(send->ec_cur_buf);
|
|
send->ec_cur_buf = NULL;
|
|
} else {
|
|
panic("%s: eshstart_cleanup: "
|
|
"no current mbuf, buf, or dmainfo!\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
/*
|
|
* Version 1 of the firmware sent an event each
|
|
* time it sent out a packet. Later versions do not
|
|
* (which results in a considerable speedup), so we
|
|
* have to keep track here.
|
|
*/
|
|
|
|
if (sc->sc_version != 1)
|
|
sc->sc_if.if_opackets++;
|
|
}
|
|
if (error != 0)
|
|
send->ec_error = error;
|
|
|
|
send->ec_consumer = NEXT_SEND(send->ec_consumer);
|
|
}
|
|
|
|
esh_dma_sync(sc, send->ec_descr,
|
|
start_consumer, consumer,
|
|
RR_SEND_RING_SIZE, sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
eshstart(&sc->sc_if);
|
|
}
|
|
|
|
|
|
/*
|
|
* XXX: Ouch: The NIC can only send word-aligned buffers, and only
|
|
* the last buffer in the packet can have a length that is not
|
|
* a multiple of four!
|
|
*
|
|
* Here we traverse the packet, pick out the bogus mbufs, and fix 'em
|
|
* if possible. The fix is amazingly expensive, so we sure hope that
|
|
* this is a rare occurance (it seems to be).
|
|
*/
|
|
|
|
static struct mbuf *
|
|
esh_adjust_mbufs(sc, m)
|
|
struct esh_softc *sc;
|
|
struct mbuf *m;
|
|
{
|
|
struct mbuf *m0, *n, *n0;
|
|
u_int32_t write_len;
|
|
|
|
write_len = m->m_pkthdr.len;
|
|
#ifdef DIAGNOSTIC
|
|
if (write_len > max_write_len)
|
|
max_write_len = write_len;
|
|
#endif
|
|
|
|
for (n0 = n = m; n; n = n->m_next) {
|
|
while (n && n->m_len == 0) {
|
|
MFREE(n, m0);
|
|
if (n == m)
|
|
n = n0 = m = m0;
|
|
else
|
|
n = n0->m_next = m0;
|
|
}
|
|
if (n == NULL)
|
|
break;
|
|
|
|
if (mtod(n, long) & 3 || (n->m_next && n->m_len & 3)) {
|
|
/* Gotta clean it up */
|
|
struct mbuf *o;
|
|
u_int32_t len;
|
|
|
|
sc->sc_misaligned_bufs++;
|
|
MGETHDR(o, M_DONTWAIT, MT_DATA);
|
|
if (!o)
|
|
goto bogosity;
|
|
|
|
MCLGET(o, M_DONTWAIT);
|
|
if (!(o->m_flags & M_EXT)) {
|
|
MFREE(o, m0);
|
|
goto bogosity;
|
|
}
|
|
|
|
/*
|
|
* XXX: Copy as much as we can into the
|
|
* cluster. For now we can't have more
|
|
* than a cluster in there. May change.
|
|
* I'd prefer not to get this
|
|
* down-n-dirty, but we have to be able
|
|
* to do this kind of funky copy.
|
|
*/
|
|
|
|
len = min(MCLBYTES, write_len);
|
|
#ifdef DIAGNOSTIC
|
|
assert(n->m_len <= len);
|
|
assert(len <= MCLBYTES);
|
|
#endif
|
|
|
|
m_copydata(n, 0, len, mtod(o, void *));
|
|
o->m_pkthdr.len = len;
|
|
m_adj(n, len);
|
|
o->m_len = len;
|
|
o->m_next = n;
|
|
|
|
if (n == m)
|
|
m = o;
|
|
else
|
|
n0->m_next = o;
|
|
n = o;
|
|
}
|
|
n0 = n;
|
|
write_len -= n->m_len;
|
|
}
|
|
return m;
|
|
|
|
bogosity:
|
|
printf("%s: esh_adjust_mbuf: unable to allocate cluster for "
|
|
"mbuf %p, len %x\n",
|
|
sc->sc_dev.dv_xname, mtod(m, void *), m->m_len);
|
|
m_freem(m);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
* Read in the current valid entries from the ring and forward
|
|
* them to the upper layer protocols. It is possible that we
|
|
* haven't received the whole packet yet, in which case we just
|
|
* add each of the buffers into the packet until we have the whole
|
|
* thing.
|
|
*/
|
|
|
|
static void
|
|
esh_read_snap_ring(sc, consumer, error)
|
|
register struct esh_softc *sc;
|
|
u_int16_t consumer;
|
|
int error;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
struct esh_snap_ring_ctl *recv = &sc->sc_snap_recv;
|
|
int start_consumer = recv->ec_consumer;
|
|
u_int16_t control;
|
|
|
|
if ((sc->sc_flags & ESH_FL_SNAP_RING_UP) == 0)
|
|
return;
|
|
|
|
if (error)
|
|
recv->ec_error = error;
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_consumer, consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (recv->ec_consumer != consumer) {
|
|
u_int16_t offset = recv->ec_consumer;
|
|
struct mbuf *m;
|
|
|
|
m = recv->ec_m[offset];
|
|
m->m_len = recv->ec_descr[offset].rd_length;
|
|
control = recv->ec_descr[offset].rd_control;
|
|
bus_dmamap_sync(sc->sc_dmat, recv->ec_dma[offset], 0, m->m_len,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->sc_dmat, recv->ec_dma[offset]);
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_read_snap_ring: offset %x addr %p len %x flags %x\n",
|
|
offset, mtod(m, void *), m->m_len, control);
|
|
#endif
|
|
if (control & RR_CT_PACKET_START || !recv->ec_cur_mbuf) {
|
|
if (recv->ec_cur_pkt) {
|
|
m_freem(recv->ec_cur_pkt);
|
|
recv->ec_cur_pkt = NULL;
|
|
printf("%s: possible skipped packet!\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
recv->ec_cur_pkt = recv->ec_cur_mbuf = m;
|
|
/* allocated buffers all have pkthdrs... */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len;
|
|
} else {
|
|
if (!recv->ec_cur_pkt)
|
|
panic("esh_read_snap_ring: no cur_pkt");
|
|
|
|
recv->ec_cur_mbuf->m_next = m;
|
|
recv->ec_cur_mbuf = m;
|
|
recv->ec_cur_pkt->m_pkthdr.len += m->m_len;
|
|
}
|
|
|
|
recv->ec_m[offset] = NULL;
|
|
recv->ec_descr[offset].rd_length = 0;
|
|
recv->ec_descr[offset].rd_buffer_addr = 0;
|
|
|
|
/* Note that we can START and END on the same buffer */
|
|
|
|
if (control & RR_CT_PACKET_END) { /* XXX: RR2_ matches */
|
|
m = recv->ec_cur_pkt;
|
|
if (!error && !recv->ec_error) {
|
|
/*
|
|
* We have a complete packet, send it up
|
|
* the stack...
|
|
*/
|
|
ifp->if_ipackets++;
|
|
|
|
#if NBPFILTER > 0
|
|
/*
|
|
* Check if there's a BPF listener on this
|
|
* interface. If so, hand off the raw packet
|
|
* to BPF.
|
|
*/
|
|
if (ifp->if_bpf) {
|
|
/*
|
|
* Incoming packets start with the FP
|
|
* data, so no alignment problems
|
|
* here...
|
|
*/
|
|
bpf_mtap(ifp->if_bpf, m);
|
|
}
|
|
#endif
|
|
if ((ifp->if_flags & IFF_RUNNING) == 0) {
|
|
m_freem(m);
|
|
} else {
|
|
m = m_pullup(m,
|
|
sizeof(struct hippi_header));
|
|
(*ifp->if_input)(ifp, m);
|
|
}
|
|
} else {
|
|
ifp->if_ierrors++;
|
|
recv->ec_error = 0;
|
|
m_freem(m);
|
|
}
|
|
recv->ec_cur_pkt = recv->ec_cur_mbuf = NULL;
|
|
}
|
|
|
|
recv->ec_descr[offset].rd_control = 0;
|
|
recv->ec_consumer = NEXT_RECV(recv->ec_consumer);
|
|
}
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_consumer, consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
esh_fill_snap_ring(sc);
|
|
}
|
|
|
|
|
|
/*
|
|
* Add the SNAP (IEEE 802) receive ring to the NIC. It is possible
|
|
* that we are doing this after resetting the card, in which case
|
|
* the structures have already been filled in and we may need to
|
|
* resume sending data.
|
|
*/
|
|
|
|
static void
|
|
esh_init_snap_ring(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
struct rr_ring_ctl *ring = sc->sc_recv_ring_table + HIPPI_ULP_802;
|
|
|
|
if ((sc->sc_flags & ESH_FL_CLOSING_SNAP) != 0) {
|
|
printf("%s: can't reopen SNAP ring until ring disable is completed\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
if (ring->rr_entry_size == 0) {
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
(caddr_t) ring - (caddr_t) sc->sc_dma_addr,
|
|
sizeof(*ring),
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
ring->rr_ring_addr = sc->sc_snap_recv_ring_dma;
|
|
ring->rr_free_bufs = RR_SNAP_RECV_RING_SIZE / 4;
|
|
ring->rr_entries = RR_SNAP_RECV_RING_SIZE;
|
|
ring->rr_entry_size = sizeof(struct rr_descr);
|
|
ring->rr_prod_index = 0;
|
|
sc->sc_snap_recv.ec_producer = 0;
|
|
sc->sc_snap_recv.ec_consumer = 0;
|
|
ring->rr_mode = RR_RR_IP;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
(caddr_t) ring - (caddr_t) sc->sc_dma_addr,
|
|
sizeof(ring),
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
esh_send_cmd(sc, RR_CC_ENABLE_RING, HIPPI_ULP_802,
|
|
sc->sc_snap_recv.ec_producer);
|
|
} else {
|
|
printf("%s: snap receive ring already initialized!\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
}
|
|
|
|
static void
|
|
esh_close_snap_ring(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_close_snap_ring: starting\n");
|
|
#endif
|
|
|
|
if ((sc->sc_flags & ESH_FL_SNAP_RING_UP) == 0)
|
|
return;
|
|
|
|
sc->sc_flags |= ESH_FL_CLOSING_SNAP;
|
|
esh_send_cmd(sc, RR_CC_DISABLE_RING, HIPPI_ULP_802, 0);
|
|
|
|
/* Disable event will trigger the rest of the cleanup. */
|
|
}
|
|
|
|
/*
|
|
* Fill in the snap ring with more mbuf buffers so that we can
|
|
* receive traffic.
|
|
*/
|
|
|
|
static void
|
|
esh_fill_snap_ring(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
struct esh_snap_ring_ctl *recv = &sc->sc_snap_recv;
|
|
int start_producer = recv->ec_producer;
|
|
int error;
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
recv->ec_producer, recv->ec_consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (NEXT_RECV(recv->ec_producer) != recv->ec_consumer) {
|
|
int offset = recv->ec_producer;
|
|
struct mbuf *m, *m0;
|
|
|
|
MGETHDR(m, M_DONTWAIT, MT_DATA);
|
|
if (!m)
|
|
break;
|
|
MCLGET(m, M_DONTWAIT);
|
|
if ((m->m_flags & M_EXT) == 0) {
|
|
MFREE(m, m0);
|
|
break;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->sc_dmat, recv->ec_dma[offset],
|
|
mtod(m, void *), MCLBYTES,
|
|
NULL, BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
printf("%s: esh_fill_recv_ring: bus_dmamap_load "
|
|
"failed\toffset %x, error code %d\n",
|
|
sc->sc_dev.dv_xname, offset, error);
|
|
MFREE(m, m0);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* In this implementation, we should only see one segment
|
|
* per DMA.
|
|
*/
|
|
|
|
assert(recv->ec_dma[offset]->dm_nsegs == 1);
|
|
|
|
/*
|
|
* Load into the descriptors.
|
|
*/
|
|
|
|
recv->ec_descr[offset].rd_ring =
|
|
(sc->sc_version == 1) ? HIPPI_ULP_802 : 0;
|
|
recv->ec_descr[offset].rd_buffer_addr =
|
|
recv->ec_dma[offset]->dm_segs->ds_addr;
|
|
recv->ec_descr[offset].rd_length =
|
|
recv->ec_dma[offset]->dm_segs->ds_len;
|
|
recv->ec_descr[offset].rd_control = 0;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, recv->ec_dma[offset], 0, MCLBYTES,
|
|
BUS_DMASYNC_PREREAD);
|
|
|
|
recv->ec_m[offset] = m;
|
|
|
|
recv->ec_producer = NEXT_RECV(recv->ec_producer);
|
|
}
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_producer, recv->ec_consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
if (sc->sc_version == 1)
|
|
esh_send_cmd(sc, RR_CC_SET_RECV_PRODUCER, HIPPI_ULP_802,
|
|
recv->ec_producer);
|
|
else
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_SNAP_RECV_PRODUCER, recv->ec_producer);
|
|
}
|
|
|
|
static void
|
|
esh_init_fp_rings(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
struct esh_fp_ring_ctl *recv;
|
|
struct rr_ring_ctl *ring_ctl;
|
|
int ulp;
|
|
|
|
for (ulp = 0; ulp < RR_ULP_COUNT; ulp++) {
|
|
ring_ctl = &sc->sc_recv_ring_table[ulp];
|
|
recv = sc->sc_fp_recv[ulp];
|
|
|
|
if (recv == NULL)
|
|
continue;
|
|
|
|
ring_ctl->rr_ring_addr = recv->ec_dma->dm_segs->ds_addr;
|
|
ring_ctl->rr_free_bufs = RR_FP_RECV_RING_SIZE / 4;
|
|
ring_ctl->rr_entries = RR_FP_RECV_RING_SIZE;
|
|
ring_ctl->rr_entry_size = sizeof(struct rr_descr);
|
|
ring_ctl->rr_prod_index = 0;
|
|
ring_ctl->rr_mode = RR_RR_CHARACTER;
|
|
recv->ec_producer = 0;
|
|
recv->ec_consumer = 0;
|
|
recv->ec_index = -1;
|
|
|
|
esh_send_cmd(sc, RR_CC_ENABLE_RING, ulp, recv->ec_producer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
esh_read_fp_ring(sc, consumer, error, ulp)
|
|
register struct esh_softc *sc;
|
|
u_int16_t consumer;
|
|
int error;
|
|
int ulp;
|
|
{
|
|
struct esh_fp_ring_ctl *recv = sc->sc_fp_recv[ulp];
|
|
int start_consumer = recv->ec_consumer;
|
|
u_int16_t control;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_read_fp_ring: ulp %d, consumer %d, producer %d, old consumer %d\n",
|
|
recv->ec_ulp, consumer, recv->ec_producer, recv->ec_consumer);
|
|
#endif
|
|
if ((sc->sc_flags & ESH_FL_FP_RING_UP) == 0)
|
|
return;
|
|
|
|
if (error != 0)
|
|
recv->ec_error = error;
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_consumer, consumer,
|
|
RR_FP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (recv->ec_consumer != consumer) {
|
|
u_int16_t offset = recv->ec_consumer;
|
|
|
|
control = recv->ec_descr[offset].rd_control;
|
|
|
|
if (control & RR_CT_PACKET_START) {
|
|
if (recv->ec_read_len) {
|
|
recv->ec_error = 0;
|
|
printf("%s: ulp %d: possible skipped FP packet!\n",
|
|
sc->sc_dev.dv_xname, recv->ec_ulp);
|
|
}
|
|
recv->ec_seen_end = 0;
|
|
recv->ec_read_len = 0;
|
|
}
|
|
if (recv->ec_seen_end == 0)
|
|
recv->ec_read_len += recv->ec_descr[offset].rd_length;
|
|
|
|
#if NOT_LAME
|
|
recv->ec_descr[offset].rd_length = 0;
|
|
recv->ec_descr[offset].rd_buffer_addr = 0;
|
|
#endif
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_read_fp_ring: offset %d addr %d len %d flags %x, total %d\n",
|
|
offset, recv->ec_descr[offset].rd_buffer_addr,
|
|
recv->ec_descr[offset].rd_length, control, recv->ec_read_len);
|
|
#endif
|
|
/* Note that we can START and END on the same buffer */
|
|
|
|
if ((control & RR_CT_PACKET_END) == RR_CT_PACKET_END) {
|
|
if (recv->ec_dmainfo[offset] != NULL) {
|
|
struct esh_dmainfo *di =
|
|
recv->ec_dmainfo[offset];
|
|
|
|
recv->ec_dmainfo[offset] = NULL;
|
|
bus_dmamap_sync(sc->sc_dmat, di->ed_dma,
|
|
0, recv->ec_read_len,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->sc_dmat, di->ed_dma);
|
|
|
|
if (!error && !recv->ec_error) {
|
|
/*
|
|
* XXX: we oughta do this right, with full
|
|
* BPF support and the rest...
|
|
*/
|
|
if (di->ed_buf != NULL) {
|
|
di->ed_buf->b_resid =
|
|
di->ed_buf->b_bcount -
|
|
recv->ec_read_len;
|
|
} else {
|
|
di->ed_read_len =
|
|
recv->ec_read_len;
|
|
}
|
|
} else {
|
|
if (di->ed_buf != NULL) {
|
|
di->ed_buf->b_resid =
|
|
di->ed_buf->b_bcount;
|
|
di->ed_buf->b_error = EIO;
|
|
di->ed_buf->b_flags |= B_ERROR;
|
|
} else {
|
|
di->ed_error = EIO;
|
|
recv->ec_error = 0;
|
|
}
|
|
}
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_read_fp_ring: ulp %d, read %d, resid %ld\n",
|
|
recv->ec_ulp, recv->ec_read_len, (di->ed_buf ? di->ed_buf->b_resid : di->ed_read_len));
|
|
#endif
|
|
di->ed_flags &=
|
|
~(ESH_DI_BUSY | ESH_DI_READING);
|
|
if (di->ed_buf != NULL)
|
|
biodone(di->ed_buf);
|
|
else
|
|
wakeup((void *) di);
|
|
recv->ec_read_len = 0;
|
|
} else {
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_read_fp_ring: ulp %d, seen end at %d\n",
|
|
recv->ec_ulp, offset);
|
|
#endif
|
|
recv->ec_seen_end = 1;
|
|
}
|
|
}
|
|
|
|
#if NOT_LAME
|
|
recv->ec_descr[offset].rd_control = 0;
|
|
#endif
|
|
recv->ec_consumer = NEXT_RECV(recv->ec_consumer);
|
|
}
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_consumer, consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
esh_fill_fp_ring(sc, recv);
|
|
}
|
|
|
|
|
|
static void
|
|
esh_fill_fp_ring(sc, recv)
|
|
struct esh_softc *sc;
|
|
struct esh_fp_ring_ctl *recv;
|
|
{
|
|
struct esh_dmainfo *di = recv->ec_cur_dmainfo;
|
|
int start_producer = recv->ec_producer;
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fill_fp_ring: ulp %d, di %p, producer %d\n",
|
|
recv->ec_ulp, di, start_producer);
|
|
#endif
|
|
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
recv->ec_producer, recv->ec_consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (NEXT_RECV(recv->ec_producer) != recv->ec_consumer) {
|
|
int offset = recv->ec_producer;
|
|
|
|
if (di == NULL) {
|
|
/*
|
|
* Must allow only one reader at a time; see
|
|
* esh_flush_fp_ring().
|
|
*/
|
|
|
|
if (offset != start_producer)
|
|
goto fp_fill_done;
|
|
|
|
di = TAILQ_FIRST(&recv->ec_queue);
|
|
if (di == NULL)
|
|
goto fp_fill_done;
|
|
TAILQ_REMOVE(&recv->ec_queue, di, ed_list);
|
|
recv->ec_offset = 0;
|
|
recv->ec_cur_dmainfo = di;
|
|
di->ed_flags |= ESH_DI_READING;
|
|
#ifdef ESH_PRINTF
|
|
printf("\toffset %d nsegs %d\n",
|
|
recv->ec_offset, di->ed_dma->dm_nsegs);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Load into the descriptors.
|
|
*/
|
|
|
|
recv->ec_descr[offset].rd_ring = 0;
|
|
recv->ec_descr[offset].rd_buffer_addr =
|
|
di->ed_dma->dm_segs[recv->ec_offset].ds_addr;
|
|
recv->ec_descr[offset].rd_length =
|
|
di->ed_dma->dm_segs[recv->ec_offset].ds_len;
|
|
recv->ec_descr[offset].rd_control = 0;
|
|
recv->ec_dmainfo[offset] = NULL;
|
|
|
|
if (recv->ec_offset == 0) {
|
|
/* Start of the dmamap... */
|
|
recv->ec_descr[offset].rd_control |=
|
|
RR_CT_PACKET_START;
|
|
}
|
|
|
|
assert(recv->ec_offset < di->ed_dma->dm_nsegs);
|
|
|
|
recv->ec_offset++;
|
|
if (recv->ec_offset == di->ed_dma->dm_nsegs) {
|
|
recv->ec_descr[offset].rd_control |= RR_CT_PACKET_END;
|
|
recv->ec_dmainfo[offset] = di;
|
|
di = NULL;
|
|
recv->ec_offset = 0;
|
|
recv->ec_cur_dmainfo = NULL;
|
|
}
|
|
|
|
recv->ec_producer = NEXT_RECV(recv->ec_producer);
|
|
}
|
|
|
|
fp_fill_done:
|
|
esh_dma_sync(sc, recv->ec_descr,
|
|
start_producer, recv->ec_consumer,
|
|
RR_SNAP_RECV_RING_SIZE,
|
|
sizeof(struct rr_descr), 1,
|
|
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
|
|
|
|
|
|
if (sc->sc_version == 1) {
|
|
esh_send_cmd(sc, RR_CC_SET_RECV_PRODUCER, recv->ec_ulp,
|
|
recv->ec_producer);
|
|
} else {
|
|
union {
|
|
u_int32_t producer;
|
|
u_int8_t indices[4];
|
|
} v;
|
|
int which;
|
|
int i;
|
|
struct esh_fp_ring_ctl *r;
|
|
|
|
which = (recv->ec_index / 4) * 4;
|
|
#if BAD_PRODUCER
|
|
v.producer = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_RECVS_PRODUCER + which);
|
|
NTOHL(v.producer);
|
|
#endif
|
|
for (i = 0; i < 4; i++) {
|
|
r = sc->sc_fp_recv_index[i + which];
|
|
if (r != NULL)
|
|
v.indices[i] = r->ec_producer;
|
|
else
|
|
v.indices[i] = 0;
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fill_fp_ring: ulp %d, updating producer %d: %.8x\n",
|
|
recv->ec_ulp, which, v.producer);
|
|
#endif
|
|
HTONL(v.producer);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_RECVS_PRODUCER + which, v.producer);
|
|
}
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_fill_fp_ring: ulp %d, final producer %d\n",
|
|
recv->ec_ulp, recv->ec_producer);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* When a read is interrupted, we need to flush the buffers out of
|
|
* the ring; otherwise, a driver error could lock a process up,
|
|
* with no way to exit.
|
|
*/
|
|
|
|
static void
|
|
esh_flush_fp_ring(sc, recv, di)
|
|
struct esh_softc *sc;
|
|
struct esh_fp_ring_ctl *recv;
|
|
struct esh_dmainfo *di;
|
|
{
|
|
int error = 0;
|
|
|
|
/*
|
|
* If the read request hasn't yet made it to the top of the queue,
|
|
* just remove it from the queue, and return.
|
|
*/
|
|
|
|
if ((di->ed_flags & ESH_DI_READING) != ESH_DI_READING) {
|
|
TAILQ_REMOVE(&recv->ec_queue, di, ed_list);
|
|
return;
|
|
}
|
|
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_flush_fp_ring: di->ed_flags %x, ulp %d, producer %x\n",
|
|
di->ed_flags, recv->ec_ulp, recv->ec_producer);
|
|
#endif
|
|
|
|
/* Now we gotta get tough. Issue a discard packet command */
|
|
|
|
esh_send_cmd(sc, RR_CC_DISCARD_PKT, recv->ec_ulp,
|
|
recv->ec_producer - 1);
|
|
|
|
/* Wait for it to finish */
|
|
|
|
while ((di->ed_flags & ESH_DI_READING) != ESH_DI_READING &&
|
|
error == 0) {
|
|
error = tsleep((void *) &di->ed_flags, PRIBIO,
|
|
"esh_flush_fp_ring", hz);
|
|
printf("esh_flush_fp_ring: di->ed_flags %x, error %d\n",
|
|
di->ed_flags, error);
|
|
/*
|
|
* What do I do if this times out or gets interrupted?
|
|
* Reset the card? I could get an interrupt before
|
|
* giving it a chance to check. Perhaps I oughta wait
|
|
* awhile? What about not giving the user a chance
|
|
* to interrupt, and just expecting a quick answer?
|
|
* That way I could reset the card if it doesn't
|
|
* come back right away!
|
|
*/
|
|
if (error != 0) {
|
|
eshreset(sc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* XXX: Do we need to clear out the dmainfo pointers */
|
|
}
|
|
|
|
|
|
int
|
|
eshioctl(ifp, cmd, data)
|
|
register struct ifnet *ifp;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
{
|
|
int error = 0;
|
|
struct esh_softc *sc = ifp->if_softc;
|
|
struct ifaddr *ifa = (struct ifaddr *)data;
|
|
struct ifdrv *ifd = (struct ifdrv *) data;
|
|
u_long len;
|
|
int s;
|
|
|
|
s = splnet();
|
|
|
|
while (sc->sc_flags & ESH_FL_EEPROM_BUSY) {
|
|
error = tsleep((void *)&sc->sc_flags, PCATCH | PRIBIO,
|
|
"esheeprom", 0);
|
|
if (error != 0)
|
|
goto ioctl_done;
|
|
}
|
|
|
|
switch (cmd) {
|
|
|
|
case SIOCSIFADDR:
|
|
ifp->if_flags |= IFF_UP;
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
eshinit(sc);
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
error = EIO;
|
|
goto ioctl_done;
|
|
}
|
|
}
|
|
|
|
if ((sc->sc_flags & (ESH_FL_RUNCODE_UP | ESH_FL_SNAP_RING_UP))
|
|
== ESH_FL_RUNCODE_UP) {
|
|
while (sc->sc_flags & ESH_FL_CLOSING_SNAP) {
|
|
error = tsleep((void *) &sc->sc_snap_recv,
|
|
PRIBIO, "esh_closing_fp_ring",
|
|
hz);
|
|
if (error != 0)
|
|
goto ioctl_done;
|
|
}
|
|
esh_init_snap_ring(sc);
|
|
}
|
|
|
|
switch (ifa->ifa_addr->sa_family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
/* The driver doesn't really care about IP addresses */
|
|
break;
|
|
#endif
|
|
#ifdef NS
|
|
case AF_NS:
|
|
{
|
|
register struct ns_addr *ina =
|
|
&IA_SNS(ifa)->sns_addr;
|
|
|
|
if (ns_nullhost(*ina))
|
|
ina->x_host = *(union ns_host *)
|
|
LLADDR(ifp->if_sadl);
|
|
else
|
|
bcopy(ina->x_host.c_host,
|
|
LLADDR(ifp->if_sadl),
|
|
ifp->if_addrlen);
|
|
/* Set new address. */
|
|
eshinit(sc);
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case SIOCSIFFLAGS:
|
|
if ((ifp->if_flags & IFF_UP) == 0 &&
|
|
(ifp->if_flags & IFF_RUNNING) != 0) {
|
|
/*
|
|
* If interface is marked down and it is running, then
|
|
* stop it.
|
|
*/
|
|
|
|
ifp->if_flags &= ~IFF_RUNNING;
|
|
esh_close_snap_ring(sc);
|
|
while (sc->sc_flags & ESH_FL_CLOSING_SNAP) {
|
|
error = tsleep((void *) &sc->sc_snap_recv,
|
|
PRIBIO, "esh_closing_fp_ring",
|
|
hz);
|
|
if (error != 0)
|
|
goto ioctl_done;
|
|
}
|
|
|
|
} else if ((ifp->if_flags & IFF_UP) != 0 &&
|
|
(ifp->if_flags & IFF_RUNNING) == 0) {
|
|
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
eshinit(sc);
|
|
if ((sc->sc_flags & ESH_FL_INITIALIZED) == 0) {
|
|
error = EIO;
|
|
goto ioctl_done;
|
|
}
|
|
}
|
|
|
|
if ((sc->sc_flags & (ESH_FL_RUNCODE_UP | ESH_FL_SNAP_RING_UP)) == ESH_FL_RUNCODE_UP) {
|
|
while (sc->sc_flags & ESH_FL_CLOSING_SNAP) {
|
|
error = tsleep((void *) &sc->sc_snap_recv, PRIBIO, "esh_closing_fp_ring", hz);
|
|
if (error != 0)
|
|
goto ioctl_done;
|
|
}
|
|
esh_init_snap_ring(sc);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SIOCSDRVSPEC: /* Driver-specific configuration calls */
|
|
cmd = ifd->ifd_cmd;
|
|
len = ifd->ifd_len;
|
|
data = ifd->ifd_data;
|
|
|
|
esh_generic_ioctl(sc, cmd, data, len, NULL);
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
ioctl_done:
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
|
|
|
|
static int
|
|
esh_generic_ioctl(struct esh_softc *sc, u_long cmd, caddr_t data,
|
|
u_long len, struct proc *p)
|
|
{
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
struct rr_eeprom rr_eeprom;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
u_int32_t misc_host_ctl;
|
|
u_int32_t misc_local_ctl;
|
|
u_int32_t address;
|
|
u_int32_t value;
|
|
u_int32_t offset;
|
|
u_int32_t length;
|
|
int error = 0;
|
|
int s = 0;
|
|
int i;
|
|
|
|
/*
|
|
* If we have a proc pointer, check to make sure that the
|
|
* user is privileged before performing any destruction operations.
|
|
*/
|
|
|
|
if (p != NULL) {
|
|
switch (cmd) {
|
|
case EIOCGTUNE:
|
|
case EIOCGEEPROM:
|
|
case EIOCGSTATS:
|
|
break;
|
|
|
|
default:
|
|
error = suser(p->p_ucred, &p->p_acflag);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
switch (cmd) {
|
|
case EIOCGTUNE:
|
|
if (len != sizeof(struct rr_tuning))
|
|
error = EMSGSIZE;
|
|
else {
|
|
error = copyout((caddr_t) &sc->sc_tune, data,
|
|
sizeof(struct rr_tuning));
|
|
}
|
|
break;
|
|
|
|
case EIOCSTUNE:
|
|
if ((ifp->if_flags & IFF_UP) == 0) {
|
|
if (len != sizeof(struct rr_tuning)) {
|
|
error = EMSGSIZE;
|
|
} else {
|
|
error = copyin(data, (caddr_t) &sc->sc_tune,
|
|
sizeof(struct rr_tuning));
|
|
}
|
|
} else {
|
|
error = EBUSY;
|
|
}
|
|
break;
|
|
|
|
case EIOCGSTATS:
|
|
if (len != sizeof(struct rr_stats))
|
|
error = EMSGSIZE;
|
|
else
|
|
error = copyout((caddr_t) &sc->sc_gen_info->ri_stats,
|
|
data, sizeof(struct rr_stats));
|
|
break;
|
|
|
|
case EIOCGEEPROM:
|
|
case EIOCSEEPROM:
|
|
if ((ifp->if_flags & IFF_UP) != 0) {
|
|
error = EBUSY;
|
|
break;
|
|
}
|
|
|
|
if (len != sizeof(struct rr_eeprom)) {
|
|
error = EMSGSIZE;
|
|
break;
|
|
}
|
|
|
|
error = copyin(data, (caddr_t) &rr_eeprom, sizeof(rr_eeprom));
|
|
if (error != 0)
|
|
break;
|
|
|
|
offset = rr_eeprom.ifr_offset;
|
|
length = rr_eeprom.ifr_length;
|
|
|
|
if (length > RR_EE_MAX_LEN * sizeof(u_int32_t)) {
|
|
error = EFBIG;
|
|
break;
|
|
}
|
|
|
|
if (offset + length > RR_EE_MAX_LEN * sizeof(u_int32_t)) {
|
|
error = EFAULT;
|
|
break;
|
|
}
|
|
|
|
if (offset % 4 || length % 4) {
|
|
error = EIO;
|
|
break;
|
|
}
|
|
|
|
/* Halt the processor (preserve NO_SWAP, if set) */
|
|
|
|
misc_host_ctl = bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL);
|
|
bus_space_write_4(iot, ioh, RR_MISC_HOST_CTL,
|
|
(misc_host_ctl & RR_MH_NO_SWAP) |
|
|
RR_MH_HALT_PROC);
|
|
|
|
/* Make the EEPROM accessable */
|
|
|
|
misc_local_ctl = bus_space_read_4(iot, ioh, RR_MISC_LOCAL_CTL);
|
|
value = misc_local_ctl &
|
|
~(RR_LC_FAST_PROM | RR_LC_ADD_SRAM | RR_LC_PARITY_ON);
|
|
if (cmd == EIOCSEEPROM) /* make writeable! */
|
|
value |= RR_LC_WRITE_PROM;
|
|
bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL, value);
|
|
|
|
if (cmd == EIOCSEEPROM) {
|
|
printf("%s: writing EEPROM\n", sc->sc_dev.dv_xname);
|
|
sc->sc_flags |= ESH_FL_EEPROM_BUSY;
|
|
s = spl0();
|
|
}
|
|
|
|
/* Do that EEPROM voodoo that you do so well... */
|
|
|
|
address = offset * RR_EE_BYTE_LEN;
|
|
for (i = 0; i < length; i += 4) {
|
|
if (cmd == EIOCGEEPROM) {
|
|
value = esh_read_eeprom(sc, address);
|
|
address += RR_EE_WORD_LEN;
|
|
if (copyout(&value,
|
|
(caddr_t) rr_eeprom.ifr_buffer + i,
|
|
sizeof(u_int32_t)) != 0) {
|
|
error = EFAULT;
|
|
break;
|
|
}
|
|
} else {
|
|
if (copyin((caddr_t) rr_eeprom.ifr_buffer + i,
|
|
&value, sizeof(u_int32_t)) != 0) {
|
|
error = EFAULT;
|
|
break;
|
|
}
|
|
if (esh_write_eeprom(sc, address,
|
|
value) != 0) {
|
|
error = EIO;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Have to give up control now and
|
|
* then, so sleep for a clock tick.
|
|
* Might be good to figure out how
|
|
* long a tick is, so that we could
|
|
* intelligently chose the frequency
|
|
* of these pauses.
|
|
*/
|
|
|
|
if (i % 40 == 0) {
|
|
tsleep((void *)&sc->sc_flags,
|
|
PRIBIO, "eshweeprom", 1);
|
|
}
|
|
|
|
address += RR_EE_WORD_LEN;
|
|
}
|
|
}
|
|
|
|
bus_space_write_4(iot, ioh, RR_MISC_LOCAL_CTL, misc_local_ctl);
|
|
if (cmd == EIOCSEEPROM) {
|
|
sc->sc_flags &= ~ESH_FL_EEPROM_BUSY;
|
|
wakeup((void *)&sc->sc_flags);
|
|
splx(s);
|
|
printf("%s: done writing EEPROM\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
break;
|
|
|
|
case EIOCRESET:
|
|
eshreset(sc);
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
void
|
|
eshreset(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
int s;
|
|
|
|
s = splnet();
|
|
eshstop(sc);
|
|
eshinit(sc);
|
|
splx(s);
|
|
}
|
|
|
|
/*
|
|
* The NIC expects a watchdog command every 10 seconds. If it doesn't
|
|
* get the watchdog, it figures the host is dead and stops. When it does
|
|
* get the command, it'll generate a watchdog event to let the host know
|
|
* that it is still alive. We watch for this.
|
|
*/
|
|
|
|
void
|
|
eshwatchdog(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
struct esh_softc *sc = ifp->if_softc;
|
|
|
|
if (!sc->sc_watchdog) {
|
|
printf("%s: watchdog timer expired. "
|
|
"Should reset interface!\n",
|
|
sc->sc_dev.dv_xname);
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
eshstatus(sc);
|
|
#if 0
|
|
eshstop(sc); /* DON'T DO THIS, it'll clear data we
|
|
could use to debug it! */
|
|
#endif
|
|
} else {
|
|
sc->sc_watchdog = 0;
|
|
|
|
esh_send_cmd(sc, RR_CC_WATCHDOG, 0, 0);
|
|
ifp->if_timer = 5;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Stop the NIC and throw away packets that have started to be sent,
|
|
* but didn't make it all the way. Re-adjust the various queue
|
|
* pointers to account for this.
|
|
*/
|
|
|
|
void
|
|
eshstop(sc)
|
|
register struct esh_softc *sc;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
struct rr_ring_ctl *ring;
|
|
u_int32_t misc_host_ctl;
|
|
int i;
|
|
|
|
if (!(sc->sc_flags & ESH_FL_INITIALIZED))
|
|
return;
|
|
|
|
/* Just shut it all down. This isn't pretty, but it works */
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma, 0, sc->sc_dma_size,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
misc_host_ctl = bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL);
|
|
bus_space_write_4(iot, ioh, RR_MISC_HOST_CTL,
|
|
(misc_host_ctl & RR_MH_NO_SWAP) | RR_MH_HALT_PROC);
|
|
sc->sc_flags = 0;
|
|
ifp->if_timer = 0; /* turn off watchdog timer */
|
|
|
|
ring = sc->sc_recv_ring_table + HIPPI_ULP_802;
|
|
while (sc->sc_snap_recv.ec_consumer
|
|
!= sc->sc_snap_recv.ec_producer) {
|
|
struct mbuf *m0;
|
|
u_int16_t offset = sc->sc_snap_recv.ec_consumer;
|
|
|
|
bus_dmamap_unload(sc->sc_dmat,
|
|
sc->sc_snap_recv.ec_dma[offset]);
|
|
MFREE(sc->sc_snap_recv.ec_m[offset], m0);
|
|
sc->sc_snap_recv.ec_m[offset] = NULL;
|
|
sc->sc_snap_recv.ec_consumer =
|
|
NEXT_RECV(sc->sc_snap_recv.ec_consumer);
|
|
wakeup((void *) &sc->sc_snap_recv);
|
|
}
|
|
|
|
/* Handle FP rings */
|
|
|
|
for (i = 0; i < RR_ULP_COUNT; i++) {
|
|
struct esh_fp_ring_ctl *ring = sc->sc_fp_recv[i];
|
|
struct esh_dmainfo *di = NULL;
|
|
|
|
if (ring == NULL)
|
|
continue;
|
|
|
|
/* Get rid of outstanding buffers */
|
|
|
|
esh_dma_sync(sc, ring->ec_descr,
|
|
ring->ec_consumer, ring->ec_producer,
|
|
RR_FP_RECV_RING_SIZE, sizeof(struct rr_descr), 0,
|
|
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
|
|
|
|
while (ring->ec_consumer != ring->ec_producer) {
|
|
di = ring->ec_dmainfo[ring->ec_consumer];
|
|
if (di != NULL)
|
|
break;
|
|
ring->ec_consumer = NEXT_RECV(ring->ec_consumer);
|
|
}
|
|
if (di == NULL)
|
|
di = ring->ec_cur_dmainfo;
|
|
|
|
if (di != NULL) {
|
|
bus_dmamap_unload(sc->sc_dmat, di->ed_dma);
|
|
di->ed_error = EIO;
|
|
di->ed_flags = 0;
|
|
wakeup((void *) &di->ed_flags); /* packet discard */
|
|
wakeup((void *) di); /* wait on read */
|
|
}
|
|
wakeup((void *) &ring->ec_ulp); /* ring create */
|
|
wakeup((void *) &ring->ec_index); /* ring disable */
|
|
}
|
|
|
|
/* XXX: doesn't clear bufs being sent */
|
|
|
|
ring = &sc->sc_gen_info->ri_send_ring_ctl;
|
|
bus_dmamap_unload(sc->sc_dmat, sc->sc_send.ec_dma);
|
|
if (sc->sc_send.ec_cur_mbuf) {
|
|
m_freem(sc->sc_send.ec_cur_mbuf);
|
|
} else if (sc->sc_send.ec_cur_buf) {
|
|
struct buf *bp = sc->sc_send.ec_cur_buf;
|
|
|
|
bp->b_resid = bp->b_bcount;
|
|
bp->b_error = EIO;
|
|
bp->b_flags |= B_ERROR;
|
|
biodone(bp);
|
|
} else if (sc->sc_send.ec_cur_dmainfo) {
|
|
struct esh_dmainfo *di = sc->sc_send.ec_cur_dmainfo;
|
|
|
|
di->ed_flags &= ~ESH_DI_BUSY;
|
|
di->ed_error = EIO;
|
|
wakeup((void *) di);
|
|
}
|
|
sc->sc_send.ec_cur_mbuf = NULL;
|
|
sc->sc_send.ec_cur_buf = NULL;
|
|
sc->sc_send.ec_cur_dmainfo = NULL;
|
|
|
|
/*
|
|
* Clear out the index values, since they'll be useless
|
|
* when we restart.
|
|
*/
|
|
|
|
bzero(sc->sc_fp_recv_index,
|
|
sizeof(struct esh_fp_ring_ctl *) * RR_MAX_RECV_RING);
|
|
|
|
/* Be sure to wake up any other processes waiting on driver action. */
|
|
|
|
wakeup((void *) sc); /* Wait on initialization */
|
|
wakeup((void *) &sc->sc_flags); /* Wait on EEPROM write */
|
|
|
|
/*
|
|
* XXX: I have to come up with a way to avoid handling interrupts
|
|
* received before this shuts down the card, but processed
|
|
* afterwards!
|
|
*/
|
|
}
|
|
|
|
/*
|
|
* Read a value from the eeprom. This expects that the NIC has already
|
|
* been tweaked to put it into the right state for reading from the
|
|
* EEPROM -- the HALT bit is set in the MISC_HOST_CTL register,
|
|
* and the FAST_PROM, ADD_SRAM, and PARITY flags have been cleared
|
|
* in the MISC_LOCAL_CTL register.
|
|
*
|
|
* The EEPROM layout is a little weird. There is a valid byte every
|
|
* eight bytes. Words are then smeared out over 32 bytes.
|
|
* All addresses listed here are the actual starting addresses.
|
|
*/
|
|
|
|
static u_int32_t
|
|
esh_read_eeprom(sc, addr)
|
|
struct esh_softc *sc;
|
|
u_int32_t addr;
|
|
{
|
|
int i;
|
|
u_int32_t tmp;
|
|
u_int32_t value = 0;
|
|
|
|
/* If the offset hasn't been added, add it. Otherwise pass through */
|
|
|
|
if (!(addr & RR_EE_OFFSET))
|
|
addr += RR_EE_OFFSET;
|
|
|
|
for (i = 0; i < 4; i++, addr += RR_EE_BYTE_LEN) {
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_WINDOW_BASE, addr);
|
|
tmp = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_WINDOW_DATA);
|
|
value = (value << 8) | ((tmp >> 24) & 0xff);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
|
|
/*
|
|
* Write a value to the eeprom. Just like esh_read_eeprom, this routine
|
|
* expects that the NIC has already been tweaked to put it into the right
|
|
* state for reading from the EEPROM. Things are further complicated
|
|
* in that we need to read each byte after we write it to ensure that
|
|
* the new value has been successfully written. It can take as long
|
|
* as 1ms (!) to write a byte.
|
|
*/
|
|
|
|
static int
|
|
esh_write_eeprom(sc, addr, value)
|
|
struct esh_softc *sc;
|
|
u_int32_t addr;
|
|
u_int32_t value;
|
|
{
|
|
int i, j;
|
|
u_int32_t shifted_value, tmp;
|
|
|
|
/* If the offset hasn't been added, add it. Otherwise pass through */
|
|
|
|
if (!(addr & RR_EE_OFFSET))
|
|
addr += RR_EE_OFFSET;
|
|
|
|
for (i = 0; i < 4; i++, addr += RR_EE_BYTE_LEN) {
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_WINDOW_BASE, addr);
|
|
|
|
/*
|
|
* Get the byte out of value, starting with the top, and
|
|
* put it into the top byte of the word to write.
|
|
*/
|
|
|
|
shifted_value = ((value >> ((3 - i) * 8)) & 0xff) << 24;
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh, RR_WINDOW_DATA,
|
|
shifted_value);
|
|
for (j = 0; j < 50; j++) {
|
|
tmp = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_WINDOW_DATA);
|
|
if (tmp == shifted_value)
|
|
break;
|
|
delay(500); /* 50us break * 20 = 1ms */
|
|
}
|
|
if (tmp != shifted_value)
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Send a command to the NIC. If there is no room in the command ring,
|
|
* panic.
|
|
*/
|
|
|
|
static void
|
|
esh_send_cmd(sc, cmd, ring, index)
|
|
struct esh_softc *sc;
|
|
u_int8_t cmd;
|
|
u_int8_t ring;
|
|
u_int8_t index;
|
|
{
|
|
union rr_cmd c;
|
|
|
|
#define NEXT_CMD(i) (((i) + 0x10 - 1) & 0x0f)
|
|
|
|
c.l = 0;
|
|
c.b.rc_code = cmd;
|
|
c.b.rc_ring = ring;
|
|
c.b.rc_index = index;
|
|
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
|
|
RR_COMMAND_RING + sizeof(c) * sc->sc_cmd_producer,
|
|
c.l);
|
|
|
|
#ifdef ESH_PRINTF
|
|
/* avoid annoying messages when possible */
|
|
if (cmd != RR_CC_WATCHDOG)
|
|
printf("esh_send_cmd: cmd %x ring %d index %d slot %x\n",
|
|
cmd, ring, index, sc->sc_cmd_producer);
|
|
#endif
|
|
|
|
sc->sc_cmd_producer = NEXT_CMD(sc->sc_cmd_producer);
|
|
}
|
|
|
|
|
|
/*
|
|
* Write an address to the device.
|
|
* XXX: This belongs in bus-dependent land!
|
|
*/
|
|
|
|
static void
|
|
esh_write_addr(iot, ioh, addr, value)
|
|
bus_space_tag_t iot;
|
|
bus_space_handle_t ioh;
|
|
bus_addr_t addr;
|
|
bus_addr_t value;
|
|
{
|
|
bus_space_write_4(iot, ioh, addr, 0);
|
|
bus_space_write_4(iot, ioh, addr + sizeof(u_int32_t), value);
|
|
}
|
|
|
|
|
|
/* Copy the RunCode from EEPROM to SRAM. Ughly. */
|
|
|
|
static void
|
|
esh_reset_runcode(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
u_int32_t value;
|
|
u_int32_t len;
|
|
u_int32_t i;
|
|
u_int32_t segments;
|
|
u_int32_t ee_addr;
|
|
u_int32_t rc_addr;
|
|
u_int32_t sram_addr;
|
|
|
|
/* Zero the SRAM */
|
|
|
|
for (i = 0; i < sc->sc_sram_size; i += 4) {
|
|
bus_space_write_4(iot, ioh, RR_WINDOW_BASE, i);
|
|
bus_space_write_4(iot, ioh, RR_WINDOW_DATA, 0);
|
|
}
|
|
|
|
/* Find the address of the segment description section */
|
|
|
|
rc_addr = esh_read_eeprom(sc, RR_EE_RUNCODE_SEGMENTS);
|
|
segments = esh_read_eeprom(sc, rc_addr);
|
|
|
|
for (i = 0; i < segments; i++) {
|
|
rc_addr += RR_EE_WORD_LEN;
|
|
sram_addr = esh_read_eeprom(sc, rc_addr);
|
|
rc_addr += RR_EE_WORD_LEN;
|
|
len = esh_read_eeprom(sc, rc_addr);
|
|
rc_addr += RR_EE_WORD_LEN;
|
|
ee_addr = esh_read_eeprom(sc, rc_addr);
|
|
|
|
while (len--) {
|
|
value = esh_read_eeprom(sc, ee_addr);
|
|
bus_space_write_4(iot, ioh, RR_WINDOW_BASE, sram_addr);
|
|
bus_space_write_4(iot, ioh, RR_WINDOW_DATA, value);
|
|
|
|
ee_addr += RR_EE_WORD_LEN;
|
|
sram_addr += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Perform bus DMA syncing operations on various rings.
|
|
* We have to worry about our relative position in the ring,
|
|
* and whether the ring has wrapped. All of this code should take
|
|
* care of those worries.
|
|
*/
|
|
|
|
static void
|
|
esh_dma_sync(sc, mem, start, end, entries, size, do_equal, ops)
|
|
struct esh_softc *sc;
|
|
void *mem;
|
|
int start;
|
|
int end;
|
|
int size;
|
|
int do_equal;
|
|
int ops;
|
|
{
|
|
int offset = (char *)mem - (char *)sc->sc_dma_addr;
|
|
|
|
if (start < end) {
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
offset + start * size,
|
|
(end - start) * size, ops);
|
|
} else if (do_equal || start != end) {
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
offset,
|
|
end * size, ops);
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dma,
|
|
offset + start * size,
|
|
(entries - start) * size, ops);
|
|
}
|
|
}
|
|
|
|
|
|
static struct esh_dmainfo *
|
|
esh_new_dmainfo(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
struct esh_dmainfo *di;
|
|
int s;
|
|
|
|
s = splnet();
|
|
|
|
di = TAILQ_FIRST(&sc->sc_dmainfo_freelist);
|
|
if (di != NULL) {
|
|
TAILQ_REMOVE(&sc->sc_dmainfo_freelist, di, ed_list);
|
|
sc->sc_dmainfo_freelist_count--;
|
|
splx(s);
|
|
return di;
|
|
}
|
|
|
|
/* None sitting around, so build one now... */
|
|
|
|
di = (struct esh_dmainfo *) malloc(sizeof(*di), M_DEVBUF, M_WAITOK);
|
|
assert(di != NULL);
|
|
bzero(di, sizeof(*di));
|
|
|
|
if (bus_dmamap_create(sc->sc_dmat, ESH_MAX_NSEGS * RR_DMA_MAX,
|
|
ESH_MAX_NSEGS, RR_DMA_MAX, RR_DMA_BOUNDRY,
|
|
BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
|
|
&di->ed_dma)) {
|
|
printf("%s: failed dmainfo bus_dmamap_create\n",
|
|
sc->sc_dev.dv_xname);
|
|
free(di, M_DEVBUF);
|
|
di = NULL;
|
|
}
|
|
|
|
splx(s);
|
|
return di;
|
|
}
|
|
|
|
static void
|
|
esh_free_dmainfo(sc, di)
|
|
struct esh_softc *sc;
|
|
struct esh_dmainfo *di;
|
|
{
|
|
int s = splnet();
|
|
|
|
assert(di != NULL);
|
|
di->ed_buf = NULL;
|
|
TAILQ_INSERT_TAIL(&sc->sc_dmainfo_freelist, di, ed_list);
|
|
sc->sc_dmainfo_freelist_count++;
|
|
#ifdef ESH_PRINTF
|
|
printf("esh_free_dmainfo: freelist count %d\n", sc->sc_dmainfo_freelist_count);
|
|
#endif
|
|
|
|
splx(s);
|
|
}
|
|
|
|
|
|
/* ------------------------- debugging functions --------------------------- */
|
|
|
|
/*
|
|
* Print out status information about the NIC and the driver.
|
|
*/
|
|
|
|
static int
|
|
eshstatus(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
int i;
|
|
|
|
/* XXX: This looks pathetic, and should be improved! */
|
|
|
|
printf("%s: status -- fail1 %x fail2 %x\n",
|
|
sc->sc_dev.dv_xname,
|
|
bus_space_read_4(iot, ioh, RR_RUNCODE_FAIL1),
|
|
bus_space_read_4(iot, ioh, RR_RUNCODE_FAIL2));
|
|
printf("\tmisc host ctl %x misc local ctl %x\n",
|
|
bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL),
|
|
bus_space_read_4(iot, ioh, RR_MISC_LOCAL_CTL));
|
|
printf("\toperating mode %x event producer %x\n",
|
|
bus_space_read_4(iot, ioh, RR_MODE_AND_STATUS),
|
|
bus_space_read_4(iot, ioh, RR_EVENT_PRODUCER));
|
|
printf("\tPC %x max rings %x\n",
|
|
bus_space_read_4(iot, ioh, RR_PROC_PC),
|
|
bus_space_read_4(iot, ioh, RR_MAX_RECV_RINGS));
|
|
printf("\tHIPPI tx state %x rx state %x\n",
|
|
bus_space_read_4(iot, ioh, RR_TX_STATE),
|
|
bus_space_read_4(iot, ioh, RR_RX_STATE));
|
|
printf("\tDMA write state %x read state %x\n",
|
|
bus_space_read_4(iot, ioh, RR_DMA_WRITE_STATE),
|
|
bus_space_read_4(iot, ioh, RR_DMA_READ_STATE));
|
|
printf("\tDMA write addr %x%x read addr %x%x\n",
|
|
bus_space_read_4(iot, ioh, RR_WRITE_HOST),
|
|
bus_space_read_4(iot, ioh, RR_WRITE_HOST + 4),
|
|
bus_space_read_4(iot, ioh, RR_READ_HOST),
|
|
bus_space_read_4(iot, ioh, RR_READ_HOST + 4));
|
|
|
|
for (i = 0; i < 64; i++)
|
|
if (sc->sc_gen_info->ri_stats.rs_stats[i])
|
|
printf("stat %x is %x\n", i * 4,
|
|
sc->sc_gen_info->ri_stats.rs_stats[i]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef ESH_PRINTF
|
|
|
|
/* Check to make sure that the NIC is still running */
|
|
|
|
static int
|
|
esh_check(sc)
|
|
struct esh_softc *sc;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
|
|
if (bus_space_read_4(iot, ioh, RR_MISC_HOST_CTL) & RR_MH_HALT_PROC) {
|
|
printf("esh_check: NIC stopped\n");
|
|
eshstatus(sc);
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
|