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      1  1.5   thorpej /*	$NetBSD: if_vtevar.h,v 1.5 2020/02/01 05:14:28 thorpej Exp $	*/
      2  1.1    bouyer 
      3  1.1    bouyer /*-
      4  1.1    bouyer  * Copyright (c) 2010, Pyun YongHyeon <yongari (at) FreeBSD.org>
      5  1.1    bouyer  * All rights reserved.
      6  1.1    bouyer  *
      7  1.1    bouyer  * Redistribution and use in source and binary forms, with or without
      8  1.1    bouyer  * modification, are permitted provided that the following conditions
      9  1.1    bouyer  * are met:
     10  1.1    bouyer  * 1. Redistributions of source code must retain the above copyright
     11  1.1    bouyer  *    notice unmodified, this list of conditions, and the following
     12  1.1    bouyer  *    disclaimer.
     13  1.1    bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.1    bouyer  *    notice, this list of conditions and the following disclaimer in the
     15  1.1    bouyer  *    documentation and/or other materials provided with the distribution.
     16  1.1    bouyer  *
     17  1.1    bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     18  1.1    bouyer  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  1.1    bouyer  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  1.1    bouyer  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     21  1.1    bouyer  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  1.1    bouyer  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  1.1    bouyer  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  1.1    bouyer  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  1.1    bouyer  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  1.1    bouyer  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  1.1    bouyer  * SUCH DAMAGE.
     28  1.1    bouyer  *
     29  1.1    bouyer  * FreeBSD: src/sys/dev/vte/if_vtevar.h,v 1.1 2010/12/31 00:21:41 yongari Exp
     30  1.1    bouyer  */
     31  1.1    bouyer 
     32  1.1    bouyer #ifndef	_IF_VTEVAR_H
     33  1.1    bouyer #define	_IF_VTEVAR_H
     34  1.1    bouyer 
     35  1.4  riastrad #include <sys/rndsource.h>
     36  1.4  riastrad 
     37  1.1    bouyer #define	VTE_TX_RING_CNT		64
     38  1.1    bouyer #define	VTE_TX_RING_ALIGN	16
     39  1.1    bouyer /*
     40  1.1    bouyer  * The TX/RX descriptor format has no limitation for number of
     41  1.1    bouyer  * descriptors in TX/RX ring.  However, the maximum number of
     42  1.1    bouyer  * descriptors that could be set as RX descriptor ring residue
     43  1.1    bouyer  * counter is 255.  This effectively limits number of RX
     44  1.1    bouyer  * descriptors available to be less than or equal to 255.
     45  1.1    bouyer  */
     46  1.1    bouyer #define	VTE_RX_RING_CNT		128
     47  1.1    bouyer #define	VTE_RX_RING_ALIGN	16
     48  1.1    bouyer #define	VTE_RX_BUF_ALIGN	4
     49  1.1    bouyer 
     50  1.1    bouyer #define	VTE_DESC_INC(x, y)	((x) = ((x) + 1) % (y))
     51  1.1    bouyer 
     52  1.1    bouyer #define	VTE_TX_RING_SZ		\
     53  1.1    bouyer 	(sizeof(struct vte_tx_desc) * VTE_TX_RING_CNT)
     54  1.1    bouyer #define	VTE_RX_RING_SZ		\
     55  1.1    bouyer 	(sizeof(struct vte_rx_desc) * VTE_RX_RING_CNT)
     56  1.1    bouyer 
     57  1.1    bouyer #define	VTE_RX_BUF_SIZE_MAX	(MCLBYTES - sizeof(uint32_t))
     58  1.1    bouyer 
     59  1.1    bouyer #define	VTE_MIN_FRAMELEN	(ETHER_MIN_LEN - ETHER_CRC_LEN)
     60  1.1    bouyer 
     61  1.1    bouyer struct vte_rxdesc {
     62  1.1    bouyer 	struct mbuf		*rx_m;
     63  1.1    bouyer 	bus_dma_segment_t	rx_seg;
     64  1.1    bouyer 	bus_dmamap_t		rx_dmamap;
     65  1.1    bouyer 	struct vte_rx_desc	*rx_desc;
     66  1.1    bouyer };
     67  1.1    bouyer 
     68  1.1    bouyer struct vte_txdesc {
     69  1.1    bouyer 	struct mbuf		*tx_m;
     70  1.1    bouyer 	bus_dma_segment_t	*tx_seg;
     71  1.1    bouyer 	bus_dmamap_t		tx_dmamap;
     72  1.1    bouyer 	struct vte_tx_desc	*tx_desc;
     73  1.1    bouyer 	int			tx_flags;
     74  1.1    bouyer #define	VTE_TXMBUF		0x0001
     75  1.1    bouyer };
     76  1.1    bouyer 
     77  1.1    bouyer struct vte_chain_data {
     78  1.1    bouyer 	struct vte_txdesc	vte_txdesc[VTE_TX_RING_CNT];
     79  1.1    bouyer 	struct mbuf		*vte_txmbufs[VTE_TX_RING_CNT];
     80  1.1    bouyer 	struct vte_rxdesc	vte_rxdesc[VTE_RX_RING_CNT];
     81  1.1    bouyer 	bus_dmamap_t		vte_tx_ring_map;
     82  1.1    bouyer 	bus_dma_segment_t	vte_tx_ring_seg[1];
     83  1.1    bouyer 	bus_dmamap_t		vte_rx_ring_map;
     84  1.1    bouyer 	bus_dma_segment_t	vte_rx_ring_seg[1];
     85  1.1    bouyer 	bus_dmamap_t		vte_rr_ring_map;
     86  1.1    bouyer 	bus_dma_segment_t	vte_rr_ring_seg[1];
     87  1.1    bouyer 	bus_dmamap_t		vte_rx_sparemap;
     88  1.1    bouyer 	bus_dmamap_t		vte_cmb_map;
     89  1.1    bouyer 	bus_dmamap_t		vte_smb_map;
     90  1.1    bouyer 	struct vte_tx_desc	*vte_tx_ring;
     91  1.1    bouyer 	struct vte_rx_desc	*vte_rx_ring;
     92  1.1    bouyer 
     93  1.1    bouyer 	int			vte_tx_prod;
     94  1.1    bouyer 	int			vte_tx_cons;
     95  1.1    bouyer 	int			vte_tx_cnt;
     96  1.1    bouyer 	int			vte_rx_cons;
     97  1.1    bouyer };
     98  1.1    bouyer 
     99  1.1    bouyer struct vte_hw_stats {
    100  1.1    bouyer 	/* RX stats. */
    101  1.1    bouyer 	uint32_t rx_frames;
    102  1.1    bouyer 	uint32_t rx_bcast_frames;
    103  1.1    bouyer 	uint32_t rx_mcast_frames;
    104  1.5   thorpej #if 0 /* unused fields; if_stats used instead. */
    105  1.1    bouyer 	uint32_t rx_runts;
    106  1.1    bouyer 	uint32_t rx_crcerrs;
    107  1.1    bouyer 	uint32_t rx_long_frames;
    108  1.1    bouyer 	uint32_t rx_fifo_full;
    109  1.5   thorpej #endif
    110  1.1    bouyer 	uint32_t rx_desc_unavail;
    111  1.1    bouyer 	uint32_t rx_pause_frames;
    112  1.1    bouyer 
    113  1.1    bouyer 	/* TX stats. */
    114  1.5   thorpej #if 0 /* unused fields; if_stats used instead. */
    115  1.1    bouyer 	uint32_t tx_frames;
    116  1.1    bouyer 	uint32_t tx_underruns;
    117  1.1    bouyer 	uint32_t tx_late_colls;
    118  1.5   thorpej #endif
    119  1.1    bouyer 	uint32_t tx_pause_frames;
    120  1.1    bouyer };
    121  1.1    bouyer 
    122  1.1    bouyer /*
    123  1.1    bouyer  * Software state per device.
    124  1.1    bouyer  */
    125  1.1    bouyer struct vte_softc {
    126  1.1    bouyer 	device_t		vte_dev;
    127  1.1    bouyer 	bus_space_tag_t		vte_bustag;
    128  1.1    bouyer 	bus_space_handle_t	vte_bushandle;
    129  1.1    bouyer 	bus_dma_tag_t		vte_dmatag;
    130  1.1    bouyer 	void*			vte_ih;
    131  1.1    bouyer 	struct ethercom		vte_ec;
    132  1.1    bouyer 	mii_data_t		vte_mii;
    133  1.1    bouyer 	device_t		vte_miibus;
    134  1.1    bouyer 	uint8_t			vte_eaddr[ETHER_ADDR_LEN];
    135  1.1    bouyer 	int			vte_flags;
    136  1.1    bouyer #define	VTE_FLAG_LINK		0x8000
    137  1.1    bouyer 
    138  1.1    bouyer 	struct callout		vte_tick_ch;
    139  1.1    bouyer 	struct vte_hw_stats	vte_stats;
    140  1.1    bouyer 	struct vte_chain_data	vte_cdata;
    141  1.1    bouyer 	int			vte_if_flags;
    142  1.1    bouyer 	int			vte_watchdog_timer;
    143  1.1    bouyer 	struct sysctllog	*vte_clog;
    144  1.1    bouyer 	int			vte_int_rx_mod;
    145  1.1    bouyer 	int			vte_int_tx_mod;
    146  1.1    bouyer 
    147  1.2       tls 	krndsource_t	rnd_source;
    148  1.1    bouyer };
    149  1.1    bouyer 
    150  1.1    bouyer #define vte_if	vte_ec.ec_if
    151  1.1    bouyer #define vte_bpf	vte_if.if_bpf
    152  1.1    bouyer 
    153  1.1    bouyer /* Register access macros. */
    154  1.1    bouyer #define	CSR_WRITE_2(_sc, reg, val)	\
    155  1.1    bouyer 	bus_space_write_2((_sc)->vte_bustag,  (_sc)->vte_bushandle, \
    156  1.1    bouyer 	(reg), (val))
    157  1.1    bouyer #define	CSR_READ_2(_sc, reg)		\
    158  1.1    bouyer 	bus_space_read_2((_sc)->vte_bustag,  (_sc)->vte_bushandle, (reg))
    159  1.1    bouyer 
    160  1.1    bouyer #define	VTE_TX_TIMEOUT		5
    161  1.1    bouyer #define	VTE_RESET_TIMEOUT	100
    162  1.1    bouyer #define	VTE_TIMEOUT		1000
    163  1.1    bouyer #define	VTE_PHY_TIMEOUT		1000
    164  1.1    bouyer 
    165  1.1    bouyer #endif	/* _IF_VTEVAR_H */
    166