1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 * $FreeBSD$ 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 59 struct vte_rxdesc { 60 struct mbuf *rx_m; 61 bus_dmamap_t rx_dmamap; 62 struct vte_rx_desc *rx_desc; 63 }; 64 65 struct vte_txdesc { 66 struct mbuf *tx_m; 67 bus_dmamap_t tx_dmamap; 68 struct vte_tx_desc *tx_desc; 69 int tx_flags; 70 #define VTE_TXMBUF 0x0001 71 }; 72 73 struct vte_chain_data { 74 bus_dma_tag_t vte_parent_tag; 75 bus_dma_tag_t vte_buffer_tag; 76 bus_dma_tag_t vte_tx_tag; 77 struct vte_txdesc vte_txdesc[VTE_TX_RING_CNT]; 78 struct mbuf *vte_txmbufs[VTE_TX_RING_CNT]; 79 bus_dma_tag_t vte_rx_tag; 80 struct vte_rxdesc vte_rxdesc[VTE_RX_RING_CNT]; 81 bus_dma_tag_t vte_tx_ring_tag; 82 bus_dmamap_t vte_tx_ring_map; 83 bus_dma_tag_t vte_rx_ring_tag; 84 bus_dmamap_t vte_rx_ring_map; 85 bus_dmamap_t vte_rx_sparemap; 86 struct vte_tx_desc *vte_tx_ring; 87 bus_addr_t vte_tx_ring_paddr; 88 struct vte_rx_desc *vte_rx_ring; 89 bus_addr_t vte_rx_ring_paddr; 90 91 int vte_tx_prod; 92 int vte_tx_cons; 93 int vte_tx_cnt; 94 int vte_rx_cons; 95 }; 96 97 struct 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 struct vte_ident { 117 uint16_t vendorid; 118 uint16_t deviceid; 119 const char *name; 120 }; 121 122 /* 123 * Software state per device. 124 */ 125 struct vte_softc { 126 if_t vte_ifp; 127 device_t vte_dev; 128 device_t vte_miibus; 129 struct resource *vte_res; 130 int vte_res_id; 131 int vte_res_type; 132 struct resource *vte_irq; 133 void *vte_intrhand; 134 const struct vte_ident *vte_ident; 135 uint8_t vte_eaddr[ETHER_ADDR_LEN]; 136 int vte_flags; 137 #define VTE_FLAG_LINK 0x8000 138 139 struct callout vte_tick_ch; 140 struct vte_hw_stats vte_stats; 141 struct vte_chain_data vte_cdata; 142 int vte_if_flags; 143 int vte_watchdog_timer; 144 int vte_int_rx_mod; 145 int vte_int_tx_mod; 146 147 struct mtx vte_mtx; 148 }; 149 150 /* Register access macros. */ 151 #define CSR_WRITE_2(_sc, reg, val) \ 152 bus_write_2((_sc)->vte_res, (reg), (val)) 153 #define CSR_READ_2(_sc, reg) \ 154 bus_read_2((_sc)->vte_res, (reg)) 155 156 #define VTE_LOCK(_sc) mtx_lock(&(_sc)->vte_mtx) 157 #define VTE_UNLOCK(_sc) mtx_unlock(&(_sc)->vte_mtx) 158 #define VTE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vte_mtx, MA_OWNED) 159 160 #define VTE_TX_TIMEOUT 5 161 #define VTE_RESET_TIMEOUT 100 162 #define VTE_TIMEOUT 1000 163 #define VTE_PHY_TIMEOUT 1000 164 165 #endif /* _IF_VTEVAR_H */ 166