58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
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/*
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* IXP2000 MSF network device driver
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* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
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* Dedicated to Marija Kulikova.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __IXPDEV_PRIV_H
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#define __IXPDEV_PRIV_H
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#define RX_BUF_DESC_BASE 0x00001000
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#define RX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_rx_desc)))
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#define TX_BUF_DESC_BASE 0x00002000
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#define TX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_tx_desc)))
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#define TX_BUF_COUNT_PER_CHAN (TX_BUF_COUNT / 4)
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#define RING_RX_PENDING ((u32 *)IXP2000_SCRATCH_RING_VIRT_BASE)
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#define RING_RX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 4))
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#define RING_TX_PENDING ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 8))
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#define RING_TX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 12))
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#define SCRATCH_REG(x) ((u32 *)(IXP2000_GLOBAL_REG_VIRT_BASE | 0x0800 | (x)))
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#define RING_RX_PENDING_BASE SCRATCH_REG(0x00)
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#define RING_RX_PENDING_HEAD SCRATCH_REG(0x04)
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#define RING_RX_PENDING_TAIL SCRATCH_REG(0x08)
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#define RING_RX_DONE_BASE SCRATCH_REG(0x10)
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#define RING_RX_DONE_HEAD SCRATCH_REG(0x14)
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#define RING_RX_DONE_TAIL SCRATCH_REG(0x18)
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#define RING_TX_PENDING_BASE SCRATCH_REG(0x20)
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#define RING_TX_PENDING_HEAD SCRATCH_REG(0x24)
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#define RING_TX_PENDING_TAIL SCRATCH_REG(0x28)
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#define RING_TX_DONE_BASE SCRATCH_REG(0x30)
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#define RING_TX_DONE_HEAD SCRATCH_REG(0x34)
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#define RING_TX_DONE_TAIL SCRATCH_REG(0x38)
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struct ixpdev_rx_desc
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{
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u32 buf_addr;
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u32 buf_length;
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u32 channel;
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u32 pkt_length;
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};
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struct ixpdev_tx_desc
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{
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u32 buf_addr;
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u32 pkt_length;
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u32 channel;
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u32 unused;
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};
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#endif
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