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/* $OpenBSD: if_vgevar.h,v 1.2 2006/05/20 02:39:31 brad Exp $ */
/* $FreeBSD: if_vgevar.h,v 1.1 2004/09/10 20:57:45 wpaul Exp $ */
/*
* Copyright (c) 2004
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#define VGE_IFQ_MAXLEN 64
#define VGE_TX_DESC_CNT 256
#define VGE_RX_DESC_CNT 256 /* Must be a multiple of 4!! */
#define VGE_RING_ALIGN 256
#define VGE_RX_LIST_SZ (VGE_RX_DESC_CNT * sizeof(struct vge_rx_desc))
#define VGE_TX_LIST_SZ (VGE_TX_DESC_CNT * sizeof(struct vge_tx_desc))
#define VGE_TX_DESC_INC(x) (x = (x + 1) % VGE_TX_DESC_CNT)
#define VGE_RX_DESC_INC(x) (x = (x + 1) % VGE_RX_DESC_CNT)
#define VGE_ADDR_LO(y) ((u_int64_t) (y) & 0xFFFFFFFF)
#define VGE_ADDR_HI(y) ((u_int64_t) (y) >> 32)
#define VGE_BUFLEN(y) ((y) & 0x7FFF)
#define VGE_OWN(x) (letoh32((x)->vge_sts) & VGE_RDSTS_OWN)
#define VGE_RXBYTES(x) ((letoh32((x)->vge_sts) & \
VGE_RDSTS_BUFSIZ) >> 16)
#define VGE_MIN_FRAMELEN 60
#define MAX_NUM_MULTICAST_ADDRESSES 128
struct vge_softc;
struct vge_list_data {
struct mbuf *vge_tx_mbuf[VGE_TX_DESC_CNT];
struct mbuf *vge_rx_mbuf[VGE_RX_DESC_CNT];
int vge_tx_prodidx;
int vge_rx_prodidx;
int vge_tx_considx;
int vge_tx_free;
bus_dmamap_t vge_tx_dmamap[VGE_TX_DESC_CNT];
bus_dmamap_t vge_rx_dmamap[VGE_RX_DESC_CNT];
bus_dma_tag_t vge_mtag; /* mbuf mapping tag */
bus_dma_segment_t vge_rx_listseg;
bus_dmamap_t vge_rx_list_map;
struct vge_rx_desc *vge_rx_list;
bus_dma_segment_t vge_tx_listseg;
bus_dmamap_t vge_tx_list_map;
struct vge_tx_desc *vge_tx_list;
};
struct vge_softc {
struct device vge_dev;
struct arpcom arpcom; /* interface info */
bus_space_handle_t vge_bhandle; /* bus space handle */
bus_space_tag_t vge_btag; /* bus space tag */
void *vge_intrhand;
bus_dma_tag_t sc_dmat;
struct mii_data sc_mii;
int vge_if_flags;
int vge_rx_consumed;
int vge_link;
int vge_camidx;
struct timeout timer_handle;
struct mbuf *vge_head;
struct mbuf *vge_tail;
struct vge_list_data vge_ldata;
};
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_SETBIT_1(sc, reg, x) \
CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x))
#define CSR_SETBIT_2(sc, reg, x) \
CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x))
#define CSR_SETBIT_4(sc, reg, x) \
CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
#define CSR_CLRBIT_1(sc, reg, x) \
CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x))
#define CSR_CLRBIT_2(sc, reg, x) \
CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x))
#define CSR_CLRBIT_4(sc, reg, x) \
CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
#define VGE_TIMEOUT 10000
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