1 /*- 2 * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com> 3 * All rights reserved. 4 * 5 * This software was developed by SRI International and the University of 6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 7 * ("CTSRD"), as part of the DARPA CRASH research programme. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 /* 34 * Ethernet media access controller (EMAC) 35 * Chapter 17, Altera Cyclone V Device Handbook (CV-5V2 2014.07.22) 36 * 37 * EMAC is an instance of the Synopsys DesignWare 3504-0 38 * Universal 10/100/1000 Ethernet MAC (DWC_gmac). 39 */ 40 41 #ifndef __IF_DWCVAR_H__ 42 #define __IF_DWCVAR_H__ 43 44 /* 45 * Driver data and defines. 46 */ 47 #define RX_DESC_COUNT 1024 48 #define RX_DESC_SIZE (sizeof(struct dwc_hwdesc) * RX_DESC_COUNT) 49 #define TX_DESC_COUNT 1024 50 #define TX_MAP_COUNT TX_DESC_COUNT 51 #define TX_DESC_SIZE (sizeof(struct dwc_hwdesc) * TX_DESC_COUNT) 52 #define TX_MAP_MAX_SEGS 32 53 54 struct dwc_bufmap { 55 bus_dmamap_t map; 56 struct mbuf *mbuf; 57 /* Only used for TX descirptors */ 58 int last_desc_idx; 59 }; 60 61 struct dwc_softc { 62 struct resource *res[2]; 63 device_t dev; 64 int mactype; 65 int mii_clk; 66 device_t miibus; 67 struct mii_data * mii_softc; 68 if_t ifp; 69 int if_flags; 70 struct mtx mtx; 71 void * intr_cookie; 72 struct callout dwc_callout; 73 bool link_is_up; 74 bool is_attached; 75 bool is_detaching; 76 int tx_watchdog_count; 77 int stats_harvest_count; 78 int phy_mode; 79 80 /* RX */ 81 bus_dma_tag_t rxdesc_tag; 82 bus_dmamap_t rxdesc_map; 83 struct dwc_hwdesc *rxdesc_ring; 84 bus_addr_t rxdesc_ring_paddr; 85 bus_dma_tag_t rxbuf_tag; 86 struct dwc_bufmap rxbuf_map[RX_DESC_COUNT]; 87 uint32_t rx_idx; 88 89 /* TX */ 90 bus_dma_tag_t txdesc_tag; 91 bus_dmamap_t txdesc_map; 92 struct dwc_hwdesc *txdesc_ring; 93 bus_addr_t txdesc_ring_paddr; 94 bus_dma_tag_t txbuf_tag; 95 struct dwc_bufmap txbuf_map[TX_DESC_COUNT]; 96 uint32_t tx_desc_head; 97 uint32_t tx_desc_tail; 98 uint32_t tx_map_head; 99 uint32_t tx_map_tail; 100 int tx_desccount; 101 int tx_mapcount; 102 }; 103 104 #endif /* __IF_DWCVAR_H__ */ 105