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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 1 normalized pattern(s): this program is free software you can distribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.839345787@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
115 lines
2.3 KiB
C
115 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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*
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* Alchemy Au1x00 ethernet driver include file
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*
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* Author: Pete Popov <ppopov@mvista.com>
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*
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* Copyright 2001 MontaVista Software Inc.
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*/
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#define MAC_IOSIZE 0x10000
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#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
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#define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */
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#define NUM_RX_BUFFS 4
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#define NUM_TX_BUFFS 4
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#define MAX_BUF_SIZE 2048
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#define ETH_TX_TIMEOUT (HZ/4)
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#define MAC_MIN_PKT_SIZE 64
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#define MULTICAST_FILTER_LIMIT 64
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/*
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* Data Buffer Descriptor. Data buffers must be aligned on 32 byte
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* boundary for both, receive and transmit.
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*/
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struct db_dest {
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struct db_dest *pnext;
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u32 *vaddr;
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dma_addr_t dma_addr;
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};
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/*
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* The transmit and receive descriptors are memory
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* mapped registers.
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*/
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struct tx_dma {
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u32 status;
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u32 buff_stat;
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u32 len;
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u32 pad;
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};
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struct rx_dma {
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u32 status;
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u32 buff_stat;
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u32 pad[2];
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};
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/*
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* MAC control registers, memory mapped.
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*/
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struct mac_reg {
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u32 control;
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u32 mac_addr_high;
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u32 mac_addr_low;
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u32 multi_hash_high;
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u32 multi_hash_low;
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u32 mii_control;
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u32 mii_data;
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u32 flow_control;
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u32 vlan1_tag;
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u32 vlan2_tag;
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};
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struct au1000_private {
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struct db_dest *pDBfree;
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struct db_dest db[NUM_RX_BUFFS+NUM_TX_BUFFS];
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struct rx_dma *rx_dma_ring[NUM_RX_DMA];
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struct tx_dma *tx_dma_ring[NUM_TX_DMA];
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struct db_dest *rx_db_inuse[NUM_RX_DMA];
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struct db_dest *tx_db_inuse[NUM_TX_DMA];
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u32 rx_head;
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u32 tx_head;
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u32 tx_tail;
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u32 tx_full;
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int mac_id;
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int mac_enabled; /* whether MAC is currently enabled and running
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* (req. for mdio)
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*/
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int old_link; /* used by au1000_adjust_link */
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int old_speed;
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int old_duplex;
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struct mii_bus *mii_bus;
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/* PHY configuration */
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int phy_static_config;
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int phy_search_highest_addr;
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int phy1_search_mac0;
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int phy_addr;
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int phy_busid;
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int phy_irq;
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/* These variables are just for quick access
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* to certain regs addresses.
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*/
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struct mac_reg *mac; /* mac registers */
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u32 *enable; /* address of MAC Enable Register */
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void __iomem *macdma; /* base of MAC DMA port */
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u32 vaddr; /* virtual address of rx/tx buffers */
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dma_addr_t dma_addr; /* dma address of rx/tx buffers */
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spinlock_t lock; /* Serialise access to device */
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u32 msg_enable;
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};
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