25b218cbd7
Fix tx queue (slist can be corrupted when tx interrupts hit within tx_encap. Lower interrupt moderation timer to (improves performance). Improve chip identification. (from linux sk98lin driver). Keep tx queue running by kicking the tx bmu repeatedly.
246 lines
8.9 KiB
C
246 lines
8.9 KiB
C
/* $NetBSD: if_skvar.h,v 1.4 2004/09/26 14:23:58 skd Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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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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/* $OpenBSD: if_skreg.h,v 1.10 2003/08/12 05:23:06 nate Exp $ */
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/*
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* Copyright (c) 1997, 1998, 1999, 2000
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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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 Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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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
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD: /c/ncvs/src/sys/pci/if_skreg.h,v 1.9 2000/04/22 02:16:37 wpaul Exp $
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*/
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/*
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* Copyright (c) 2003 Nathan L. Binkert <binkertn@umich.edu>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DEV_PCI_IF_SKVAR_H_
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#define _DEV_PCI_IF_SKVAR_H_
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struct sk_jslot {
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caddr_t sk_buf;
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int sk_inuse;
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};
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struct sk_jpool_entry {
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int slot;
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LIST_ENTRY(sk_jpool_entry) jpool_entries;
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};
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struct sk_chain {
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void *sk_desc;
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struct mbuf *sk_mbuf;
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struct sk_chain *sk_next;
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};
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/*
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* Number of DMA segments in a TxCB. Note that this is carefully
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* chosen to make the total struct size an even power of two. It's
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* critical that no TxCB be split across a page boundary since
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* no attempt is made to allocate physically contiguous memory.
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*
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*/
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#define SK_NTXSEG 30
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struct sk_txmap_entry {
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bus_dmamap_t dmamap;
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SIMPLEQ_ENTRY(sk_txmap_entry) link;
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};
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struct sk_chain_data {
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struct sk_chain sk_tx_chain[SK_TX_RING_CNT];
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struct sk_chain sk_rx_chain[SK_RX_RING_CNT];
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struct sk_txmap_entry *sk_tx_map[SK_TX_RING_CNT];
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bus_dmamap_t sk_rx_map[SK_RX_RING_CNT];
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int sk_tx_prod;
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int sk_tx_cons;
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int sk_tx_cnt;
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int sk_rx_prod;
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int sk_rx_cons;
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int sk_rx_cnt;
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/* Stick the jumbo mem management stuff here too. */
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struct sk_jslot sk_jslots[SK_JSLOTS];
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void *sk_jumbo_buf;
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};
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struct sk_ring_data {
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struct sk_tx_desc sk_tx_ring[SK_TX_RING_CNT];
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struct sk_rx_desc sk_rx_ring[SK_RX_RING_CNT];
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};
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#define SK_TX_RING_ADDR(sc, i) \
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((sc)->sk_ring_map->dm_segs[0].ds_addr + \
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offsetof(struct sk_ring_data, sk_tx_ring[(i)]))
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#define SK_RX_RING_ADDR(sc, i) \
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((sc)->sk_ring_map->dm_segs[0].ds_addr + \
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offsetof(struct sk_ring_data, sk_rx_ring[(i)]))
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#define SK_CDOFF(x) offsetof(struct sk_ring_data, x)
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#define SK_CDTXOFF(x) SK_CDOFF(sk_tx_ring[(x)])
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#define SK_CDRXOFF(x) SK_CDOFF(sk_rx_ring[(x)])
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#define SK_CDTXSYNC(sc, x, n, ops) \
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do { \
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int __x, __n; \
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\
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__x = (x); \
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__n = (n); \
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\
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/* If it will wrap around, sync to the end of the ring. */ \
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if ((__x + __n) > SK_TX_RING_CNT) { \
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bus_dmamap_sync((sc)->sk_softc->sc_dmatag, \
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(sc)->sk_ring_map, SK_CDTXOFF(__x), \
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sizeof(struct sk_tx_desc) * (SK_TX_RING_CNT - __x),\
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(ops)); \
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__n -= (SK_TX_RING_CNT - __x); \
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__x = 0; \
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} \
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\
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/* Now sync whatever is left. */ \
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bus_dmamap_sync((sc)->sk_softc->sc_dmatag, (sc)->sk_ring_map, \
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SK_CDTXOFF((__x)), sizeof(struct sk_tx_desc) * __n, (ops)); \
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} while (/*CONSTCOND*/0)
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#define SK_CDRXSYNC(sc, x, ops) \
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do { \
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bus_dmamap_sync((sc)->sk_softc->sc_dmatag, (sc)->sk_ring_map, \
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SK_CDRXOFF((x)), sizeof(struct sk_rx_desc), (ops)); \
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} while (/*CONSTCOND*/0)
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struct sk_bcom_hack {
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int reg;
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int val;
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};
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#define SK_INC(x, y) (x) = (x + 1) % y
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/* Forward decl. */
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struct sk_if_softc;
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/* Softc for the GEnesis controller. */
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struct sk_softc {
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struct device sk_dev; /* generic device */
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bus_space_handle_t sk_bhandle; /* bus space handle */
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bus_space_tag_t sk_btag; /* bus space tag */
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void *sk_intrhand; /* irq handler handle */
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struct resource *sk_irq; /* IRQ resource handle */
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struct resource *sk_res; /* I/O or shared mem handle */
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u_int8_t sk_type;
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u_int8_t sk_rev;
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char *sk_name;
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char *sk_vpd_prodname;
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char *sk_vpd_readonly;
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u_int32_t sk_rboff; /* RAMbuffer offset */
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u_int32_t sk_ramsize; /* amount of RAM on NIC */
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u_int32_t sk_pmd; /* physical media type */
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u_int32_t sk_intrmask;
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bus_dma_tag_t sc_dmatag;
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struct sk_if_softc *sk_if[2];
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};
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/* Softc for each logical interface */
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struct sk_if_softc {
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struct device sk_dev; /* generic device */
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struct ethercom sk_ethercom; /* interface info */
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struct mii_data sk_mii;
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u_int8_t sk_enaddr[ETHER_ADDR_LEN]; /* station addr */
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u_int8_t sk_port; /* port # on controller */
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u_int8_t sk_xmac_rev; /* XMAC chip rev (B2 or C1) */
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u_int32_t sk_rx_ramstart;
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u_int32_t sk_rx_ramend;
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u_int32_t sk_tx_ramstart;
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u_int32_t sk_tx_ramend;
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int sk_phytype;
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int sk_phyaddr;
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int sk_cnt;
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int sk_link;
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struct callout sk_tick_ch;
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struct sk_chain_data sk_cdata;
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struct sk_ring_data *sk_rdata;
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bus_dmamap_t sk_ring_map;
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struct sk_softc *sk_softc; /* parent controller */
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int sk_tx_bmu; /* TX BMU register */
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int sk_if_flags;
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LIST_HEAD(__sk_jfreehead, sk_jpool_entry) sk_jfree_listhead;
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LIST_HEAD(__sk_jinusehead, sk_jpool_entry) sk_jinuse_listhead;
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SIMPLEQ_HEAD(__sk_txmaphead, sk_txmap_entry) sk_txmap_head;
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};
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struct skc_attach_args {
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u_int16_t skc_port;
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};
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#endif /* _DEV_PCI_IF_SKVAR_H_ */
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