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15d014d1 LB |
1 | /* |
2 | * IXP2000 MSF network device driver | |
3 | * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org> | |
4 | * Dedicated to Marija Kulikova. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef __IXPDEV_PRIV_H | |
13 | #define __IXPDEV_PRIV_H | |
14 | ||
15 | #define RX_BUF_DESC_BASE 0x00001000 | |
16 | #define RX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_rx_desc))) | |
17 | #define TX_BUF_DESC_BASE 0x00002000 | |
18 | #define TX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_tx_desc))) | |
19 | #define TX_BUF_COUNT_PER_CHAN (TX_BUF_COUNT / 4) | |
20 | ||
21 | #define RING_RX_PENDING ((u32 *)IXP2000_SCRATCH_RING_VIRT_BASE) | |
22 | #define RING_RX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 4)) | |
23 | #define RING_TX_PENDING ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 8)) | |
24 | #define RING_TX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 12)) | |
25 | ||
26 | #define SCRATCH_REG(x) ((u32 *)(IXP2000_GLOBAL_REG_VIRT_BASE | 0x0800 | (x))) | |
27 | #define RING_RX_PENDING_BASE SCRATCH_REG(0x00) | |
28 | #define RING_RX_PENDING_HEAD SCRATCH_REG(0x04) | |
29 | #define RING_RX_PENDING_TAIL SCRATCH_REG(0x08) | |
30 | #define RING_RX_DONE_BASE SCRATCH_REG(0x10) | |
31 | #define RING_RX_DONE_HEAD SCRATCH_REG(0x14) | |
32 | #define RING_RX_DONE_TAIL SCRATCH_REG(0x18) | |
33 | #define RING_TX_PENDING_BASE SCRATCH_REG(0x20) | |
34 | #define RING_TX_PENDING_HEAD SCRATCH_REG(0x24) | |
35 | #define RING_TX_PENDING_TAIL SCRATCH_REG(0x28) | |
36 | #define RING_TX_DONE_BASE SCRATCH_REG(0x30) | |
37 | #define RING_TX_DONE_HEAD SCRATCH_REG(0x34) | |
38 | #define RING_TX_DONE_TAIL SCRATCH_REG(0x38) | |
39 | ||
40 | struct ixpdev_rx_desc | |
41 | { | |
42 | u32 buf_addr; | |
43 | u32 buf_length; | |
44 | u32 channel; | |
45 | u32 pkt_length; | |
46 | }; | |
47 | ||
48 | struct ixpdev_tx_desc | |
49 | { | |
50 | u32 buf_addr; | |
51 | u32 pkt_length; | |
52 | u32 channel; | |
53 | u32 unused; | |
54 | }; | |
55 | ||
56 | ||
57 | #endif |