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if_skvar.h revision 1.9
      1 /* $NetBSD: if_skvar.h,v 1.9 2006/02/14 00:19:17 riz Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the NetBSD
     18  *	Foundation, Inc. and its contributors.
     19  * 4. Neither the name of The NetBSD Foundation nor the names of its
     20  *    contributors may be used to endorse or promote products derived
     21  *    from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 /*	$OpenBSD: if_skreg.h,v 1.10 2003/08/12 05:23:06 nate Exp $	*/
     36 
     37 /*
     38  * Copyright (c) 1997, 1998, 1999, 2000
     39  *	Bill Paul <wpaul (at) ctr.columbia.edu>.  All rights reserved.
     40  *
     41  * Redistribution and use in source and binary forms, with or without
     42  * modification, are permitted provided that the following conditions
     43  * are met:
     44  * 1. Redistributions of source code must retain the above copyright
     45  *    notice, this list of conditions and the following disclaimer.
     46  * 2. Redistributions in binary form must reproduce the above copyright
     47  *    notice, this list of conditions and the following disclaimer in the
     48  *    documentation and/or other materials provided with the distribution.
     49  * 3. All advertising materials mentioning features or use of this software
     50  *    must display the following acknowledgement:
     51  *	This product includes software developed by Bill Paul.
     52  * 4. Neither the name of the author nor the names of any co-contributors
     53  *    may be used to endorse or promote products derived from this software
     54  *    without specific prior written permission.
     55  *
     56  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     57  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     58  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     59  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     60  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     61  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     62  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     63  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     64  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     65  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     66  * THE POSSIBILITY OF SUCH DAMAGE.
     67  *
     68  * $FreeBSD: /c/ncvs/src/sys/pci/if_skreg.h,v 1.9 2000/04/22 02:16:37 wpaul Exp $
     69  */
     70 
     71 /*
     72  * Copyright (c) 2003 Nathan L. Binkert <binkertn (at) umich.edu>
     73  *
     74  * Permission to use, copy, modify, and distribute this software for any
     75  * purpose with or without fee is hereby granted, provided that the above
     76  * copyright notice and this permission notice appear in all copies.
     77  *
     78  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     79  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     80  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     81  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     82  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     83  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     84  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     85  */
     86 
     87 #ifndef _DEV_PCI_IF_SKVAR_H_
     88 #define _DEV_PCI_IF_SKVAR_H_
     89 
     90 #include "rnd.h"
     91 
     92 #if NRND > 0
     93 #include <sys/rnd.h>
     94 #endif
     95 
     96 struct sk_jslot {
     97 	caddr_t			sk_buf;
     98 	int			sk_inuse;
     99 };
    100 
    101 struct sk_jpool_entry {
    102 	int                             slot;
    103 	LIST_ENTRY(sk_jpool_entry)	jpool_entries;
    104 };
    105 
    106 struct sk_chain {
    107 	void			*sk_desc;
    108 	struct mbuf		*sk_mbuf;
    109 	struct sk_chain		*sk_next;
    110 };
    111 
    112 /*
    113  * Number of DMA segments in a TxCB. Note that this is carefully
    114  * chosen to make the total struct size an even power of two. It's
    115  * critical that no TxCB be split across a page boundary since
    116  * no attempt is made to allocate physically contiguous memory.
    117  *
    118  */
    119 #define SK_NTXSEG      30
    120 
    121 struct sk_txmap_entry {
    122 	bus_dmamap_t			dmamap;
    123 	SIMPLEQ_ENTRY(sk_txmap_entry)	link;
    124 };
    125 
    126 struct sk_chain_data {
    127 	struct sk_chain		sk_tx_chain[SK_TX_RING_CNT];
    128 	struct sk_chain		sk_rx_chain[SK_RX_RING_CNT];
    129 	struct sk_txmap_entry	*sk_tx_map[SK_TX_RING_CNT];
    130 	bus_dmamap_t		sk_rx_map[SK_RX_RING_CNT];
    131 	int			sk_tx_prod;
    132 	int			sk_tx_cons;
    133 	int			sk_tx_cnt;
    134 	int			sk_rx_prod;
    135 	int			sk_rx_cons;
    136 	int			sk_rx_cnt;
    137 	/* Stick the jumbo mem management stuff here too. */
    138 	struct sk_jslot		sk_jslots[SK_JSLOTS];
    139 	void			*sk_jumbo_buf;
    140 
    141 };
    142 
    143 struct sk_ring_data {
    144 	struct sk_tx_desc	sk_tx_ring[SK_TX_RING_CNT];
    145 	struct sk_rx_desc	sk_rx_ring[SK_RX_RING_CNT];
    146 };
    147 
    148 #define SK_TX_RING_ADDR(sc, i) \
    149     ((sc)->sk_ring_map->dm_segs[0].ds_addr + \
    150      offsetof(struct sk_ring_data, sk_tx_ring[(i)]))
    151 
    152 #define SK_RX_RING_ADDR(sc, i) \
    153     ((sc)->sk_ring_map->dm_segs[0].ds_addr + \
    154      offsetof(struct sk_ring_data, sk_rx_ring[(i)]))
    155 
    156 #define SK_CDOFF(x)	offsetof(struct sk_ring_data, x)
    157 #define SK_CDTXOFF(x)	SK_CDOFF(sk_tx_ring[(x)])
    158 #define SK_CDRXOFF(x)	SK_CDOFF(sk_rx_ring[(x)])
    159 
    160 #define SK_CDTXSYNC(sc, x, n, ops)					\
    161 do {									\
    162 	int __x, __n;							\
    163 									\
    164 	__x = (x);							\
    165 	__n = (n);							\
    166 									\
    167 	/* If it will wrap around, sync to the end of the ring. */	\
    168 	if ((__x + __n) > SK_TX_RING_CNT) {				\
    169 		bus_dmamap_sync((sc)->sk_softc->sc_dmatag,		\
    170 		    (sc)->sk_ring_map, SK_CDTXOFF(__x),			\
    171 		    sizeof(struct sk_tx_desc) *	 (SK_TX_RING_CNT - __x),\
    172 		    (ops));						\
    173 		__n -= (SK_TX_RING_CNT - __x);				\
    174 		__x = 0;						\
    175 	}								\
    176 									\
    177 	/* Now sync whatever is left. */				\
    178 	bus_dmamap_sync((sc)->sk_softc->sc_dmatag, (sc)->sk_ring_map,	\
    179 	    SK_CDTXOFF((__x)), sizeof(struct sk_tx_desc) * __n, (ops));	\
    180 } while (/*CONSTCOND*/0)
    181 
    182 #define SK_CDRXSYNC(sc, x, ops)						\
    183 do {									\
    184 	bus_dmamap_sync((sc)->sk_softc->sc_dmatag, (sc)->sk_ring_map,	\
    185 	    SK_CDRXOFF((x)), sizeof(struct sk_rx_desc), (ops));		\
    186 } while (/*CONSTCOND*/0)
    187 
    188 struct sk_bcom_hack {
    189 	int			reg;
    190 	int			val;
    191 };
    192 
    193 #define SK_INC(x, y)	(x) = (x + 1) % y
    194 
    195 /* Forward decl. */
    196 struct sk_if_softc;
    197 
    198 /* Softc for the GEnesis controller. */
    199 struct sk_softc {
    200 	struct device		sk_dev;		/* generic device */
    201 	bus_space_handle_t	sk_bhandle;	/* bus space handle */
    202 	bus_space_tag_t		sk_btag;	/* bus space tag */
    203 	void			*sk_intrhand;	/* irq handler handle */
    204 	struct resource		*sk_irq;	/* IRQ resource handle */
    205 	struct resource		*sk_res;	/* I/O or shared mem handle */
    206 	u_int8_t		sk_type;
    207 	u_int8_t		sk_rev;
    208   	const char		*sk_name;
    209 	char			*sk_vpd_prodname;
    210 	char			*sk_vpd_readonly;
    211 	u_int32_t		sk_rboff;	/* RAMbuffer offset */
    212 	u_int32_t		sk_ramsize;	/* amount of RAM on NIC */
    213 	u_int32_t		sk_pmd;		/* physical media type */
    214 	u_int32_t		sk_intrmask;
    215 	struct sysctllog	*sk_clog;
    216 	int			sk_int_mod;
    217 	int			sk_int_mod_pending;
    218 	bus_dma_tag_t		sc_dmatag;
    219 	struct sk_if_softc	*sk_if[2];
    220 #if NRND > 0
    221 	rndsource_element_t     rnd_source;
    222 #endif
    223 };
    224 
    225 /* Softc for each logical interface */
    226 struct sk_if_softc {
    227 	struct device		sk_dev;		/* generic device */
    228 	struct ethercom		sk_ethercom;	/* interface info */
    229 	struct mii_data		sk_mii;
    230 	u_int8_t                sk_enaddr[ETHER_ADDR_LEN]; /* station addr */
    231 	u_int8_t		sk_port;	/* port # on controller */
    232 	u_int8_t		sk_xmac_rev;	/* XMAC chip rev (B2 or C1) */
    233 	u_int32_t		sk_rx_ramstart;
    234 	u_int32_t		sk_rx_ramend;
    235 	u_int32_t		sk_tx_ramstart;
    236 	u_int32_t		sk_tx_ramend;
    237 	int			sk_phytype;
    238 	int			sk_phyaddr;
    239 	int			sk_cnt;
    240 	int			sk_link;
    241 	struct callout		sk_tick_ch;
    242 	struct sk_chain_data	sk_cdata;
    243 	struct sk_ring_data	*sk_rdata;
    244 	bus_dmamap_t		sk_ring_map;
    245 	struct sk_softc		*sk_softc;	/* parent controller */
    246 	int			sk_tx_bmu;	/* TX BMU register */
    247 	int			sk_if_flags;
    248 	LIST_HEAD(__sk_jfreehead, sk_jpool_entry)	sk_jfree_listhead;
    249 	LIST_HEAD(__sk_jinusehead, sk_jpool_entry)	sk_jinuse_listhead;
    250 	SIMPLEQ_HEAD(__sk_txmaphead, sk_txmap_entry) sk_txmap_head;
    251 };
    252 
    253 struct skc_attach_args {
    254 	u_int16_t	skc_port;
    255 };
    256 
    257 #endif /* _DEV_PCI_IF_SKVAR_H_ */
    258