273 lines
8.6 KiB
C
273 lines
8.6 KiB
C
/* $NetBSD: rrunnervar.h,v 1.9 2005/02/27 00:27:02 perry Exp $ */
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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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/* RoadRunner software status per interface */
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struct rr_tuning {
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/* Performance tuning registers: */
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u_int32_t rt_mode_and_status;
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u_int32_t rt_conn_retry_count;
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u_int32_t rt_conn_retry_timer;
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u_int32_t rt_conn_timeout;
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u_int32_t rt_stats_timer;
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u_int32_t rt_interrupt_timer;
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u_int32_t rt_tx_timeout;
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u_int32_t rt_rx_timeout;
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/* DMA performance tuning registers: */
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u_int32_t rt_pci_state;
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u_int32_t rt_dma_write_state;
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u_int32_t rt_dma_read_state;
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u_int32_t rt_driver_param;
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};
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struct rr_eeprom {
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u_int32_t ifr_offset; /* initial offset in bytes */
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u_int32_t ifr_length; /* length in bytes to write */
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u_int32_t *ifr_buffer; /* data to be written */
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};
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#define EIOCGTUNE 1 /* retrieve tuning */
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#define EIOCSTUNE 2 /* set tuning */
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#define EIOCGEEPROM 3 /* get eeprom */
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#define EIOCSEEPROM 4 /* set eeprom */
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#define EIOCGSTATS 5 /* get statistics */
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#define EIOCRESET 6 /* reset the card */
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#ifdef _KERNEL
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/* Per-ring information for the SNAP (network) receive ring */
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struct esh_snap_ring_ctl {
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bus_dmamap_t ec_dma[RR_MAX_DESCR];
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struct mbuf *ec_m[RR_MAX_DESCR];
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struct mbuf *ec_cur_pkt; /* current packet being processed */
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struct mbuf *ec_cur_mbuf; /* current mbuf being processed */
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int ec_error; /* encountered error? */
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u_int16_t ec_producer; /* latest buffer driver produced */
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u_int16_t ec_consumer; /* latest buffer runcode consumed */
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struct rr_descr *ec_descr; /* array of descriptors for ring */
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};
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TAILQ_HEAD(esh_dmainfo_list, esh_dmainfo);
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struct esh_dmainfo {
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u_int32_t ed_flags;
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#define ESH_DI_BUSY 0x1
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#define ESH_DI_READING 0x2
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bus_dmamap_t ed_dma;
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struct buf *ed_buf;
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int ed_read_len;
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int ed_error;
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TAILQ_ENTRY(esh_dmainfo) ed_list;
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};
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struct esh_send_ring_ctl {
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bus_dmamap_t ec_dma; /* dmamap for data to transmit */
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int ec_offset; /* offset in dmamap to send next */
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size_t ec_len; /* total length of current buf */
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struct mbuf *ec_cur_mbuf; /* current mbuf being processed */
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struct buf *ec_cur_buf; /* current buf being processed */
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struct esh_dmainfo *ec_cur_dmainfo;
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/* current dmainfo being processed */
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struct bufq_state ec_buf_queue; /* queue of bufs to send */
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int ec_error; /* encountered error? */
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u_int16_t ec_producer; /* latest buffer driver produced */
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u_int16_t ec_consumer; /* latest buffer runcode consumed */
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struct rr_descr *ec_descr; /* array of descriptors for ring */
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struct esh_dmainfo_list ec_di_queue;
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};
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struct esh_fp_ring_ctl {
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struct esh_dmainfo *ec_dmainfo[RR_MAX_DESCR];
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struct esh_dmainfo *ec_cur_dmainfo;
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int ec_offset; /* offset of current buf */
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int ec_error; /* encountered error? */
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int ec_seen_end; /* seen the end of the buffer? */
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int ec_dmainfo_count; /* dmainfo buffers in use count */
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u_int16_t ec_producer; /* latest buffer driver produced */
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u_int16_t ec_consumer; /* latest buffer runcode consumed */
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u_int32_t ec_read_len; /* length of packet being read in */
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struct rr_descr *ec_descr; /* array of descriptors for ring */
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struct esh_dmainfo_list ec_queue;
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u_int ec_ulp; /* ULP for this ring */
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int ec_index; /* index into list of active rings */
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bus_dmamap_t ec_dma;
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bus_dma_segment_t ec_dmaseg;
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};
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struct esh_softc {
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struct device sc_dev;
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struct ifnet sc_if;
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struct ifmedia sc_media;
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volatile int sc_flags;
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#define ESH_FL_INITIALIZING 0x001
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#define ESH_FL_INITIALIZED 0x002
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#define ESH_FL_RUNCODE_UP 0x004
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#define ESH_FL_LINK_UP 0x008
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#define ESH_FL_SNAP_RING_UP 0x010
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#define ESH_FL_FP_RING_UP 0x020
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#define ESH_FL_EEPROM_BUSY 0x040
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#define ESH_FL_FP_OPEN 0x080
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#define ESH_FL_CRASHED 0x100
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#define ESH_FL_CLOSING_SNAP 0x200
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void *sc_ih;
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bus_space_tag_t sc_iot; /* bus cookie */
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bus_space_handle_t sc_ioh; /* bus i/o handle */
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bus_dma_tag_t sc_dmat; /* dma tag */
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bus_dma_segment_t sc_dmaseg; /* segment holding the various
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data structures in host memory
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that are DMA'ed to the NIC */
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bus_dmamap_t sc_dma; /* dma map for the segment */
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caddr_t sc_dma_addr; /* address in kernel of DMA mem */
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bus_size_t sc_dma_size; /* size of dma-able region */
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u_int8_t (*sc_bist_read)(struct esh_softc *);
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void (*sc_bist_write)(struct esh_softc *, u_int8_t);
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/*
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* Definitions for the various driver structures that sit in host
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* memory and are read by the NIC via DMA:
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*/
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struct rr_gen_info *sc_gen_info; /* gen info block pointer */
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bus_addr_t sc_gen_info_dma;
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struct rr_ring_ctl *sc_recv_ring_table;
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bus_addr_t sc_recv_ring_table_dma;
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struct rr_event *sc_event_ring;
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bus_addr_t sc_event_ring_dma;
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struct rr_descr *sc_send_ring;
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struct rr2_descr *sc2_send_ring;
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bus_addr_t sc_send_ring_dma;
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struct rr_descr *sc_snap_recv_ring;
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struct rr2_descr *sc2_snap_recv_ring;
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bus_addr_t sc_snap_recv_ring_dma;
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/*
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* Control structures for the various rings that we definitely
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* know we want to keep track of.
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*/
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struct esh_send_ring_ctl
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sc_send;
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struct esh_snap_ring_ctl
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sc_snap_recv;
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struct esh_fp_ring_ctl *sc_fp_recv[RR_ULP_COUNT];
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struct esh_fp_ring_ctl *sc_fp_recv_index[RR_MAX_RECV_RING];
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int sc_event_consumer;
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int sc_event_producer;
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int sc_cmd_consumer;
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int sc_cmd_producer;
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/*
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* Various maintainance values we need
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*/
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int sc_watchdog;
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/*
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* Various hardware parameters we need to keep track of.
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*/
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u_int32_t sc_sram_size;
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u_int32_t sc_runcode_start;
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u_int32_t sc_runcode_version;
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u_int32_t sc_version; /* interface of runcode (1 or 2) */
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u_int16_t sc_options; /* options in current RunCode */
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u_int sc_max_rings;
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u_int32_t sc_pci_latency;
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u_int32_t sc_pci_lat_gnt;
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u_int32_t sc_pci_cache_line;
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/* ULA assigned to hardware */
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u_int8_t sc_ula[6];
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/* Tuning parameters */
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struct rr_tuning sc_tune;
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/* Measure of how ugly this is. */
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u_int32_t sc_misaligned_bufs;
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u_int32_t sc_bad_lens;
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struct esh_dmainfo_list sc_dmainfo_freelist;
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u_int sc_dmainfo_freelist_count;
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u_int sc_fp_rings;
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};
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void eshconfig(struct esh_softc *);
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int eshintr(void *);
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#endif /* _KERNEL */
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/* Define a few constants for future use */
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#define ESH_MAX_NSEGS 512 /* room for 2MB of data */
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#define ESH_STATS_TIMER_DEFAULT 1030900
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/* 1000000 usecs / 0.97 usecs/tick */
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#define NEXT_EVENT(i) (((i) + 1) & (RR_EVENT_RING_SIZE - 1))
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#define NEXT_SEND(i) (((i) + 1) & (RR_SEND_RING_SIZE - 1))
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#define NEXT_RECV(i) (((i) + 1) & (RR_SNAP_RECV_RING_SIZE - 1))
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#define PREV_SEND(i) (((i) + RR_SEND_RING_SIZE - 1) & (RR_SEND_RING_SIZE - 1))
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#define PREV_RECV(i) \
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(((i) + RR_SNAP_RECV_RING_SIZE - 1) & (RR_SNAP_RECV_RING_SIZE - 1))
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