1/* $NetBSD: if_vtevar.h,v 1.2 2011/11/19 22:51:23 tls Exp $ */ 2 3/*- 4 * Copyright (c) 2010, Pyun YongHyeon <yongari@FreeBSD.org> 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 unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * FreeBSD: src/sys/dev/vte/if_vtevar.h,v 1.1 2010/12/31 00:21:41 yongari Exp 30 */ 31 32#ifndef _IF_VTEVAR_H 33#define _IF_VTEVAR_H 34 35#define VTE_TX_RING_CNT 64 36#define VTE_TX_RING_ALIGN 16 37/* 38 * The TX/RX descriptor format has no limitation for number of 39 * descriptors in TX/RX ring. However, the maximum number of 40 * descriptors that could be set as RX descriptor ring residue 41 * counter is 255. This effectively limits number of RX 42 * descriptors available to be less than or equal to 255. 43 */ 44#define VTE_RX_RING_CNT 128 45#define VTE_RX_RING_ALIGN 16 46#define VTE_RX_BUF_ALIGN 4 47 48#define VTE_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) 49 50#define VTE_TX_RING_SZ \ 51 (sizeof(struct vte_tx_desc) * VTE_TX_RING_CNT) 52#define VTE_RX_RING_SZ \ 53 (sizeof(struct vte_rx_desc) * VTE_RX_RING_CNT) 54 55#define VTE_RX_BUF_SIZE_MAX (MCLBYTES - sizeof(uint32_t)) 56 57#define VTE_MIN_FRAMELEN (ETHER_MIN_LEN - ETHER_CRC_LEN) 58 59struct vte_rxdesc { 60 struct mbuf *rx_m; 61 bus_dma_segment_t rx_seg; 62 bus_dmamap_t rx_dmamap; 63 struct vte_rx_desc *rx_desc; 64}; 65 66struct vte_txdesc { 67 struct mbuf *tx_m; 68 bus_dma_segment_t *tx_seg; 69 bus_dmamap_t tx_dmamap; 70 struct vte_tx_desc *tx_desc; 71 int tx_flags; 72#define VTE_TXMBUF 0x0001 73}; 74 75struct vte_chain_data { 76 struct vte_txdesc vte_txdesc[VTE_TX_RING_CNT]; 77 struct mbuf *vte_txmbufs[VTE_TX_RING_CNT]; 78 struct vte_rxdesc vte_rxdesc[VTE_RX_RING_CNT]; 79 bus_dmamap_t vte_tx_ring_map; 80 bus_dma_segment_t vte_tx_ring_seg[1]; 81 bus_dmamap_t vte_rx_ring_map; 82 bus_dma_segment_t vte_rx_ring_seg[1]; 83 bus_dmamap_t vte_rr_ring_map; 84 bus_dma_segment_t vte_rr_ring_seg[1]; 85 bus_dmamap_t vte_rx_sparemap; 86 bus_dmamap_t vte_cmb_map; 87 bus_dmamap_t vte_smb_map; 88 struct vte_tx_desc *vte_tx_ring; 89 struct vte_rx_desc *vte_rx_ring; 90 91 int vte_tx_prod; 92 int vte_tx_cons; 93 int vte_tx_cnt; 94 int vte_rx_cons; 95}; 96 97struct vte_hw_stats { 98 /* RX stats. */ 99 uint32_t rx_frames; 100 uint32_t rx_bcast_frames; 101 uint32_t rx_mcast_frames; 102 uint32_t rx_runts; 103 uint32_t rx_crcerrs; 104 uint32_t rx_long_frames; 105 uint32_t rx_fifo_full; 106 uint32_t rx_desc_unavail; 107 uint32_t rx_pause_frames; 108 109 /* TX stats. */ 110 uint32_t tx_frames; 111 uint32_t tx_underruns; 112 uint32_t tx_late_colls; 113 uint32_t tx_pause_frames; 114}; 115 116/* 117 * Software state per device. 118 */ 119struct vte_softc { 120 device_t vte_dev; 121 bus_space_tag_t vte_bustag; 122 bus_space_handle_t vte_bushandle; 123 bus_dma_tag_t vte_dmatag; 124 void* vte_ih; 125 struct ethercom vte_ec; 126 mii_data_t vte_mii; 127 device_t vte_miibus; 128 uint8_t vte_eaddr[ETHER_ADDR_LEN]; 129 int vte_flags; 130#define VTE_FLAG_LINK 0x8000 131 132 struct callout vte_tick_ch; 133 struct vte_hw_stats vte_stats; 134 struct vte_chain_data vte_cdata; 135 int vte_if_flags; 136 int vte_watchdog_timer; 137 struct sysctllog *vte_clog; 138 int vte_int_rx_mod; 139 int vte_int_tx_mod; 140 141 krndsource_t rnd_source; 142}; 143 144#define vte_if vte_ec.ec_if 145#define vte_bpf vte_if.if_bpf 146 147/* Register access macros. */ 148#define CSR_WRITE_2(_sc, reg, val) \ 149 bus_space_write_2((_sc)->vte_bustag, (_sc)->vte_bushandle, \ 150 (reg), (val)) 151#define CSR_READ_2(_sc, reg) \ 152 bus_space_read_2((_sc)->vte_bustag, (_sc)->vte_bushandle, (reg)) 153 154#define VTE_TX_TIMEOUT 5 155#define VTE_RESET_TIMEOUT 100 156#define VTE_TIMEOUT 1000 157#define VTE_PHY_TIMEOUT 1000 158 159#endif /* _IF_VTEVAR_H */ 160