1 /* $NetBSD: if_vtevar.h,v 1.4 2015/04/14 20:32:36 riastradh 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 #include <sys/rndsource.h> 36 37 #define VTE_TX_RING_CNT 64 38 #define VTE_TX_RING_ALIGN 16 39 /* 40 * The TX/RX descriptor format has no limitation for number of 41 * descriptors in TX/RX ring. However, the maximum number of 42 * descriptors that could be set as RX descriptor ring residue 43 * counter is 255. This effectively limits number of RX 44 * descriptors available to be less than or equal to 255. 45 */ 46 #define VTE_RX_RING_CNT 128 47 #define VTE_RX_RING_ALIGN 16 48 #define VTE_RX_BUF_ALIGN 4 49 50 #define VTE_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) 51 52 #define VTE_TX_RING_SZ \ 53 (sizeof(struct vte_tx_desc) * VTE_TX_RING_CNT) 54 #define VTE_RX_RING_SZ \ 55 (sizeof(struct vte_rx_desc) * VTE_RX_RING_CNT) 56 57 #define VTE_RX_BUF_SIZE_MAX (MCLBYTES - sizeof(uint32_t)) 58 59 #define VTE_MIN_FRAMELEN (ETHER_MIN_LEN - ETHER_CRC_LEN) 60 61 struct vte_rxdesc { 62 struct mbuf *rx_m; 63 bus_dma_segment_t rx_seg; 64 bus_dmamap_t rx_dmamap; 65 struct vte_rx_desc *rx_desc; 66 }; 67 68 struct vte_txdesc { 69 struct mbuf *tx_m; 70 bus_dma_segment_t *tx_seg; 71 bus_dmamap_t tx_dmamap; 72 struct vte_tx_desc *tx_desc; 73 int tx_flags; 74 #define VTE_TXMBUF 0x0001 75 }; 76 77 struct vte_chain_data { 78 struct vte_txdesc vte_txdesc[VTE_TX_RING_CNT]; 79 struct mbuf *vte_txmbufs[VTE_TX_RING_CNT]; 80 struct vte_rxdesc vte_rxdesc[VTE_RX_RING_CNT]; 81 bus_dmamap_t vte_tx_ring_map; 82 bus_dma_segment_t vte_tx_ring_seg[1]; 83 bus_dmamap_t vte_rx_ring_map; 84 bus_dma_segment_t vte_rx_ring_seg[1]; 85 bus_dmamap_t vte_rr_ring_map; 86 bus_dma_segment_t vte_rr_ring_seg[1]; 87 bus_dmamap_t vte_rx_sparemap; 88 bus_dmamap_t vte_cmb_map; 89 bus_dmamap_t vte_smb_map; 90 struct vte_tx_desc *vte_tx_ring; 91 struct vte_rx_desc *vte_rx_ring; 92 93 int vte_tx_prod; 94 int vte_tx_cons; 95 int vte_tx_cnt; 96 int vte_rx_cons; 97 }; 98 99 struct vte_hw_stats { 100 /* RX stats. */ 101 uint32_t rx_frames; 102 uint32_t rx_bcast_frames; 103 uint32_t rx_mcast_frames; 104 uint32_t rx_runts; 105 uint32_t rx_crcerrs; 106 uint32_t rx_long_frames; 107 uint32_t rx_fifo_full; 108 uint32_t rx_desc_unavail; 109 uint32_t rx_pause_frames; 110 111 /* TX stats. */ 112 uint32_t tx_frames; 113 uint32_t tx_underruns; 114 uint32_t tx_late_colls; 115 uint32_t tx_pause_frames; 116 }; 117 118 /* 119 * Software state per device. 120 */ 121 struct vte_softc { 122 device_t vte_dev; 123 bus_space_tag_t vte_bustag; 124 bus_space_handle_t vte_bushandle; 125 bus_dma_tag_t vte_dmatag; 126 void* vte_ih; 127 struct ethercom vte_ec; 128 mii_data_t vte_mii; 129 device_t vte_miibus; 130 uint8_t vte_eaddr[ETHER_ADDR_LEN]; 131 int vte_flags; 132 #define VTE_FLAG_LINK 0x8000 133 134 struct callout vte_tick_ch; 135 struct vte_hw_stats vte_stats; 136 struct vte_chain_data vte_cdata; 137 int vte_if_flags; 138 int vte_watchdog_timer; 139 struct sysctllog *vte_clog; 140 int vte_int_rx_mod; 141 int vte_int_tx_mod; 142 143 krndsource_t rnd_source; 144 }; 145 146 #define vte_if vte_ec.ec_if 147 #define vte_bpf vte_if.if_bpf 148 149 /* Register access macros. */ 150 #define CSR_WRITE_2(_sc, reg, val) \ 151 bus_space_write_2((_sc)->vte_bustag, (_sc)->vte_bushandle, \ 152 (reg), (val)) 153 #define CSR_READ_2(_sc, reg) \ 154 bus_space_read_2((_sc)->vte_bustag, (_sc)->vte_bushandle, (reg)) 155 156 #define VTE_TX_TIMEOUT 5 157 #define VTE_RESET_TIMEOUT 100 158 #define VTE_TIMEOUT 1000 159 #define VTE_PHY_TIMEOUT 1000 160 161 #endif /* _IF_VTEVAR_H */ 162