Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Lennert Buytenhek | 9c1bbdf | 2007-10-19 04:11:03 +0200 | [diff] [blame] | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
| 4 | * |
| 5 | * Based on the 64360 driver from: |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
| 7 | * Rabeeh Khoury <rabeeh@marvell.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 2003 PMC-Sierra, Inc., |
Olaf Hering | 3bb8a18 | 2006-01-05 22:45:45 -0800 | [diff] [blame] | 10 | * written by Manish Lachwani |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * |
| 12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> |
| 13 | * |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Dale Farnsworth <dale@farnsworth.org> |
| 16 | * |
| 17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> |
| 18 | * <sjhill@realitydiluted.com> |
| 19 | * |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
| 21 | * Lennert Buytenhek <buytenh@marvell.com> |
| 22 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | * This program is free software; you can redistribute it and/or |
| 24 | * modify it under the terms of the GNU General Public License |
| 25 | * as published by the Free Software Foundation; either version 2 |
| 26 | * of the License, or (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 31 | * GNU General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public License |
| 34 | * along with this program; if not, write to the Free Software |
| 35 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 36 | */ |
Lennert Buytenhek | a779d38 | 2008-06-01 00:54:05 +0200 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/init.h> |
| 39 | #include <linux/dma-mapping.h> |
Al Viro | b6298c2 | 2006-01-18 19:35:54 -0500 | [diff] [blame] | 40 | #include <linux/in.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <linux/tcp.h> |
| 42 | #include <linux/udp.h> |
| 43 | #include <linux/etherdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/delay.h> |
| 45 | #include <linux/ethtool.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 46 | #include <linux/platform_device.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 47 | #include <linux/module.h> |
| 48 | #include <linux/kernel.h> |
| 49 | #include <linux/spinlock.h> |
| 50 | #include <linux/workqueue.h> |
| 51 | #include <linux/mii.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 52 | #include <linux/mv643xx_eth.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/io.h> |
| 54 | #include <asm/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #include <asm/system.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 56 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 57 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
Lennert Buytenhek | c456031 | 2008-08-24 07:33:05 +0200 | [diff] [blame] | 58 | static char mv643xx_eth_driver_version[] = "1.3"; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 59 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 60 | #define MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
| 61 | #define MV643XX_ETH_NAPI |
| 62 | #define MV643XX_ETH_TX_FAST_REFILL |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 63 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 64 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 65 | #define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1) |
| 66 | #else |
| 67 | #define MAX_DESCS_PER_SKB 1 |
| 68 | #endif |
| 69 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 70 | /* |
| 71 | * Registers shared between all ports. |
| 72 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 73 | #define PHY_ADDR 0x0000 |
| 74 | #define SMI_REG 0x0004 |
| 75 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 76 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 77 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 78 | #define WINDOW_BAR_ENABLE 0x0290 |
| 79 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 80 | |
| 81 | /* |
| 82 | * Per-port registers. |
| 83 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 84 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 85 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 86 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
| 87 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) |
| 88 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) |
| 89 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) |
| 90 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) |
| 91 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 92 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 93 | #define TX_IN_PROGRESS 0x00000080 |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 94 | #define PORT_SPEED_MASK 0x00000030 |
| 95 | #define PORT_SPEED_1000 0x00000010 |
| 96 | #define PORT_SPEED_100 0x00000020 |
| 97 | #define PORT_SPEED_10 0x00000000 |
| 98 | #define FLOW_CONTROL_ENABLED 0x00000008 |
| 99 | #define FULL_DUPLEX 0x00000004 |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 100 | #define LINK_UP 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 101 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 102 | #define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) |
| 103 | #define TX_BW_RATE(p) (0x0450 + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 104 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 105 | #define TX_BW_BURST(p) (0x045c + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 106 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 107 | #define INT_TX_END_0 0x00080000 |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 108 | #define INT_TX_END 0x07f80000 |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 109 | #define INT_RX 0x0007fbfc |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 110 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 111 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 112 | #define INT_EXT_LINK 0x00100000 |
| 113 | #define INT_EXT_PHY 0x00010000 |
| 114 | #define INT_EXT_TX_ERROR_0 0x00000100 |
| 115 | #define INT_EXT_TX_0 0x00000001 |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 116 | #define INT_EXT_TX 0x0000ffff |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 117 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 118 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 119 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 120 | #define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) |
| 121 | #define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) |
| 122 | #define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) |
| 123 | #define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 124 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 125 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 126 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
| 127 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) |
| 128 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) |
| 129 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 130 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 131 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 132 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 133 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 134 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 135 | |
| 136 | /* |
| 137 | * SDMA configuration register. |
| 138 | */ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 139 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 140 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 141 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 142 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 143 | |
| 144 | #if defined(__BIG_ENDIAN) |
| 145 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 146 | RX_BURST_SIZE_16_64BIT | \ |
| 147 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 148 | #elif defined(__LITTLE_ENDIAN) |
| 149 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 150 | RX_BURST_SIZE_16_64BIT | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 151 | BLM_RX_NO_SWAP | \ |
| 152 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 153 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 154 | #else |
| 155 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 156 | #endif |
| 157 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 158 | |
| 159 | /* |
| 160 | * Port serial control register. |
| 161 | */ |
| 162 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 163 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 164 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 165 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 166 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 167 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 168 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 169 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 170 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 171 | #define FORCE_LINK_PASS (1 << 1) |
| 172 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 173 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 174 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 175 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 176 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 177 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 178 | /* |
| 179 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 180 | */ |
| 181 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 182 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 183 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 184 | u16 buf_size; /* Buffer size */ |
| 185 | u32 cmd_sts; /* Descriptor command status */ |
| 186 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 187 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 188 | }; |
| 189 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 190 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 191 | u16 byte_cnt; /* buffer byte count */ |
| 192 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 193 | u32 cmd_sts; /* Command/status field */ |
| 194 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 195 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 196 | }; |
| 197 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 198 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 199 | u32 cmd_sts; /* Descriptor command status */ |
| 200 | u16 buf_size; /* Buffer size */ |
| 201 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 202 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 203 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 204 | }; |
| 205 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 206 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 207 | u32 cmd_sts; /* Command/status field */ |
| 208 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 209 | u16 byte_cnt; /* buffer byte count */ |
| 210 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 211 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 212 | }; |
| 213 | #else |
| 214 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 215 | #endif |
| 216 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 217 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 218 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 219 | |
| 220 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 221 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 222 | |
| 223 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 224 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 225 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 226 | #define RX_FIRST_DESC 0x08000000 |
| 227 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 228 | |
| 229 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 230 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 231 | #define GEN_CRC 0x00400000 |
| 232 | #define TX_FIRST_DESC 0x00200000 |
| 233 | #define TX_LAST_DESC 0x00100000 |
| 234 | #define ZERO_PADDING 0x00080000 |
| 235 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 236 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 237 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 238 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
| 239 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 240 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 241 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 242 | |
| 243 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 244 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 245 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 246 | /* |
| 247 | * Ethernet controller base address. |
| 248 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 249 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 250 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 251 | /* |
| 252 | * Protects access to SMI_REG, which is shared between ports. |
| 253 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 254 | spinlock_t phy_lock; |
| 255 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 256 | /* |
| 257 | * Per-port MBUS window access register value. |
| 258 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 259 | u32 win_protect; |
| 260 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 261 | /* |
| 262 | * Hardware-specific parameters. |
| 263 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 264 | unsigned int t_clk; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 265 | int extended_rx_coal_limit; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 266 | int tx_bw_control_moved; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 267 | }; |
| 268 | |
| 269 | |
| 270 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 271 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 272 | u64 good_octets_received; |
| 273 | u32 bad_octets_received; |
| 274 | u32 internal_mac_transmit_err; |
| 275 | u32 good_frames_received; |
| 276 | u32 bad_frames_received; |
| 277 | u32 broadcast_frames_received; |
| 278 | u32 multicast_frames_received; |
| 279 | u32 frames_64_octets; |
| 280 | u32 frames_65_to_127_octets; |
| 281 | u32 frames_128_to_255_octets; |
| 282 | u32 frames_256_to_511_octets; |
| 283 | u32 frames_512_to_1023_octets; |
| 284 | u32 frames_1024_to_max_octets; |
| 285 | u64 good_octets_sent; |
| 286 | u32 good_frames_sent; |
| 287 | u32 excessive_collision; |
| 288 | u32 multicast_frames_sent; |
| 289 | u32 broadcast_frames_sent; |
| 290 | u32 unrec_mac_control_received; |
| 291 | u32 fc_sent; |
| 292 | u32 good_fc_received; |
| 293 | u32 bad_fc_received; |
| 294 | u32 undersize_received; |
| 295 | u32 fragments_received; |
| 296 | u32 oversize_received; |
| 297 | u32 jabber_received; |
| 298 | u32 mac_receive_error; |
| 299 | u32 bad_crc_event; |
| 300 | u32 collision; |
| 301 | u32 late_collision; |
| 302 | }; |
| 303 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 304 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 305 | int index; |
| 306 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 307 | int rx_ring_size; |
| 308 | |
| 309 | int rx_desc_count; |
| 310 | int rx_curr_desc; |
| 311 | int rx_used_desc; |
| 312 | |
| 313 | struct rx_desc *rx_desc_area; |
| 314 | dma_addr_t rx_desc_dma; |
| 315 | int rx_desc_area_size; |
| 316 | struct sk_buff **rx_skb; |
| 317 | |
| 318 | struct timer_list rx_oom; |
| 319 | }; |
| 320 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 321 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 322 | int index; |
| 323 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 324 | int tx_ring_size; |
| 325 | |
| 326 | int tx_desc_count; |
| 327 | int tx_curr_desc; |
| 328 | int tx_used_desc; |
| 329 | |
| 330 | struct tx_desc *tx_desc_area; |
| 331 | dma_addr_t tx_desc_dma; |
| 332 | int tx_desc_area_size; |
| 333 | struct sk_buff **tx_skb; |
| 334 | }; |
| 335 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 336 | struct mv643xx_eth_private { |
| 337 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 338 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 339 | |
| 340 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 341 | |
| 342 | struct mv643xx_eth_shared_private *shared_smi; |
| 343 | int phy_addr; |
| 344 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 345 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 346 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 347 | struct mib_counters mib_counters; |
| 348 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 349 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 350 | |
| 351 | /* |
| 352 | * RX state. |
| 353 | */ |
| 354 | int default_rx_ring_size; |
| 355 | unsigned long rx_desc_sram_addr; |
| 356 | int rx_desc_sram_size; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 357 | u8 rxq_mask; |
| 358 | int rxq_primary; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 359 | struct napi_struct napi; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 360 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 361 | |
| 362 | /* |
| 363 | * TX state. |
| 364 | */ |
| 365 | int default_tx_ring_size; |
| 366 | unsigned long tx_desc_sram_addr; |
| 367 | int tx_desc_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 368 | u8 txq_mask; |
| 369 | int txq_primary; |
| 370 | struct tx_queue txq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 371 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 372 | int tx_clean_threshold; |
| 373 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 374 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 376 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 377 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 378 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 380 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | } |
| 382 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 383 | static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 385 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | } |
| 387 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 388 | |
| 389 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 390 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 392 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 393 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 395 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 396 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 397 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 398 | } |
| 399 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 400 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 401 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 402 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 403 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 404 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 405 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 406 | static void rxq_disable(struct rx_queue *rxq) |
| 407 | { |
| 408 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 409 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 410 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 411 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 412 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 413 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 414 | } |
| 415 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 416 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 417 | { |
| 418 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 419 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index); |
| 420 | u32 addr; |
| 421 | |
| 422 | addr = (u32)txq->tx_desc_dma; |
| 423 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 424 | wrl(mp, off, addr); |
| 425 | } |
| 426 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 427 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 428 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 429 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 430 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 431 | } |
| 432 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 433 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 434 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 435 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 436 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 437 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 438 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 439 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 440 | udelay(10); |
| 441 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 442 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 443 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 444 | { |
| 445 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 446 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 447 | /* |
| 448 | * netif_{stop,wake}_queue() flow control only applies to |
| 449 | * the primary queue. |
| 450 | */ |
| 451 | BUG_ON(txq->index != mp->txq_primary); |
| 452 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 453 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 454 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | |
| 458 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 459 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 460 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 461 | static void rxq_refill(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 462 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 463 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 464 | unsigned long flags; |
| 465 | |
| 466 | spin_lock_irqsave(&mp->lock, flags); |
| 467 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 468 | while (rxq->rx_desc_count < rxq->rx_ring_size) { |
| 469 | int skb_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 470 | struct sk_buff *skb; |
| 471 | int unaligned; |
| 472 | int rx; |
| 473 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 474 | /* |
| 475 | * Reserve 2+14 bytes for an ethernet header (the |
| 476 | * hardware automatically prepends 2 bytes of dummy |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 477 | * data to each received packet), 16 bytes for up to |
| 478 | * four VLAN tags, and 4 bytes for the trailing FCS |
| 479 | * -- 36 bytes total. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 480 | */ |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 481 | skb_size = mp->dev->mtu + 36; |
| 482 | |
| 483 | /* |
| 484 | * Make sure that the skb size is a multiple of 8 |
| 485 | * bytes, as the lower three bits of the receive |
| 486 | * descriptor's buffer size field are ignored by |
| 487 | * the hardware. |
| 488 | */ |
| 489 | skb_size = (skb_size + 7) & ~7; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 490 | |
| 491 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 492 | if (skb == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | break; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 494 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 495 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 496 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 497 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 498 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 499 | rxq->rx_desc_count++; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 500 | |
| 501 | rx = rxq->rx_used_desc++; |
| 502 | if (rxq->rx_used_desc == rxq->rx_ring_size) |
| 503 | rxq->rx_used_desc = 0; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 504 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 505 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 506 | skb_size, DMA_FROM_DEVICE); |
| 507 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 508 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 509 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 510 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 511 | RX_ENABLE_INTERRUPT; |
| 512 | wmb(); |
| 513 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 514 | /* |
| 515 | * The hardware automatically prepends 2 bytes of |
| 516 | * dummy data to each received packet, so that the |
| 517 | * IP header ends up 16-byte aligned. |
| 518 | */ |
| 519 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 521 | |
Lennert Buytenhek | 92c70f2 | 2008-08-24 01:59:05 +0200 | [diff] [blame] | 522 | if (rxq->rx_desc_count != rxq->rx_ring_size) |
| 523 | mod_timer(&rxq->rx_oom, jiffies + (HZ / 10)); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 524 | |
| 525 | spin_unlock_irqrestore(&mp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 528 | static inline void rxq_refill_timer_wrapper(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 530 | rxq_refill((struct rx_queue *)data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | } |
| 532 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 533 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 535 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 536 | struct net_device_stats *stats = &mp->dev->stats; |
| 537 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 539 | rx = 0; |
Lennert Buytenhek | 9e1f377 | 2008-08-24 02:33:47 +0200 | [diff] [blame] | 540 | while (rx < budget && rxq->rx_desc_count) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 541 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 542 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 543 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 544 | unsigned long flags; |
| 545 | |
| 546 | spin_lock_irqsave(&mp->lock, flags); |
| 547 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 548 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 549 | |
| 550 | cmd_sts = rx_desc->cmd_sts; |
| 551 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 552 | spin_unlock_irqrestore(&mp->lock, flags); |
| 553 | break; |
| 554 | } |
| 555 | rmb(); |
| 556 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 557 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 558 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 559 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 560 | rxq->rx_curr_desc++; |
| 561 | if (rxq->rx_curr_desc == rxq->rx_ring_size) |
| 562 | rxq->rx_curr_desc = 0; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 563 | |
| 564 | spin_unlock_irqrestore(&mp->lock, flags); |
| 565 | |
Lennert Buytenhek | 3a49948 | 2008-08-24 07:19:48 +0200 | [diff] [blame] | 566 | dma_unmap_single(NULL, rx_desc->buf_ptr, |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 567 | rx_desc->buf_size, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 568 | rxq->rx_desc_count--; |
| 569 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 570 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 571 | /* |
| 572 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 573 | * |
| 574 | * Note that the descriptor byte count includes 2 dummy |
| 575 | * bytes automatically inserted by the hardware at the |
| 576 | * start of the packet (which we don't count), and a 4 |
| 577 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 578 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 580 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 581 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 583 | * In case we received a packet without first / last bits |
| 584 | * on, or the error summary bit is set, the packet needs |
| 585 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 587 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 588 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 589 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 591 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 592 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 593 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 595 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 596 | "received packet spanning " |
| 597 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 599 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 600 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | stats->rx_errors++; |
| 602 | |
| 603 | dev_kfree_skb_irq(skb); |
| 604 | } else { |
| 605 | /* |
| 606 | * The -4 is for the CRC in the trailer of the |
| 607 | * received packet |
| 608 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 609 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 611 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 613 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 614 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 616 | skb->protocol = eth_type_trans(skb, mp->dev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 617 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | netif_receive_skb(skb); |
| 619 | #else |
| 620 | netif_rx(skb); |
| 621 | #endif |
| 622 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 623 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 624 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 626 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 627 | rxq_refill(rxq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 629 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | } |
| 631 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 632 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 633 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 635 | struct mv643xx_eth_private *mp; |
| 636 | int rx; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 637 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 638 | |
| 639 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 641 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | if (++mp->tx_clean_threshold > 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | mp->tx_clean_threshold = 0; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 644 | for (i = 0; i < 8; i++) |
| 645 | if (mp->txq_mask & (1 << i)) |
| 646 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 647 | |
| 648 | if (netif_carrier_ok(mp->dev)) { |
Lennert Buytenhek | 8e0b1bf | 2008-08-24 02:30:42 +0200 | [diff] [blame] | 649 | spin_lock_irq(&mp->lock); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 650 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | 8e0b1bf | 2008-08-24 02:30:42 +0200 | [diff] [blame] | 651 | spin_unlock_irq(&mp->lock); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 652 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | } |
| 654 | #endif |
| 655 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 656 | rx = 0; |
| 657 | for (i = 7; rx < budget && i >= 0; i--) |
| 658 | if (mp->rxq_mask & (1 << i)) |
| 659 | rx += rxq_process(mp->rxq + i, budget - rx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 661 | if (rx < budget) { |
| 662 | netif_rx_complete(mp->dev, napi); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 663 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | } |
| 665 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 666 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | } |
| 668 | #endif |
| 669 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 670 | |
| 671 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 672 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 673 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 674 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 675 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 676 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 677 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 678 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 679 | return 1; |
| 680 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 681 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 682 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 683 | } |
| 684 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 685 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 686 | { |
| 687 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 688 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 689 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 690 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 691 | tx_desc_curr = txq->tx_curr_desc++; |
| 692 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 693 | txq->tx_curr_desc = 0; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 694 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 695 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 696 | |
| 697 | return tx_desc_curr; |
| 698 | } |
| 699 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 700 | static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 701 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 702 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 703 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 704 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 705 | for (frag = 0; frag < nr_frags; frag++) { |
| 706 | skb_frag_t *this_frag; |
| 707 | int tx_index; |
| 708 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 709 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 710 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 711 | tx_index = txq_alloc_desc_index(txq); |
| 712 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 713 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 714 | /* |
| 715 | * The last fragment will generate an interrupt |
| 716 | * which will free the skb on TX completion. |
| 717 | */ |
| 718 | if (frag == nr_frags - 1) { |
| 719 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 720 | ZERO_PADDING | TX_LAST_DESC | |
| 721 | TX_ENABLE_INTERRUPT; |
| 722 | txq->tx_skb[tx_index] = skb; |
| 723 | } else { |
| 724 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 725 | txq->tx_skb[tx_index] = NULL; |
| 726 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 727 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 728 | desc->l4i_chk = 0; |
| 729 | desc->byte_cnt = this_frag->size; |
| 730 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 731 | this_frag->page_offset, |
| 732 | this_frag->size, |
| 733 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 734 | } |
| 735 | } |
| 736 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 737 | static inline __be16 sum16_as_be(__sum16 sum) |
| 738 | { |
| 739 | return (__force __be16)sum; |
| 740 | } |
| 741 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 742 | static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 743 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 744 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 745 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 746 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 747 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 748 | u32 cmd_sts; |
| 749 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 750 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 751 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 752 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 753 | tx_index = txq_alloc_desc_index(txq); |
| 754 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 755 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 756 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 757 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 758 | |
| 759 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 760 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 761 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 762 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 763 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 764 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | desc->byte_cnt = length; |
| 768 | desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 769 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 770 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 771 | int mac_hdr_len; |
| 772 | |
| 773 | BUG_ON(skb->protocol != htons(ETH_P_IP) && |
| 774 | skb->protocol != htons(ETH_P_8021Q)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 775 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 776 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 777 | GEN_IP_V4_CHECKSUM | |
| 778 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 779 | |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 780 | mac_hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; |
| 781 | switch (mac_hdr_len - ETH_HLEN) { |
| 782 | case 0: |
| 783 | break; |
| 784 | case 4: |
| 785 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 786 | break; |
| 787 | case 8: |
| 788 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 789 | break; |
| 790 | case 12: |
| 791 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 792 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 793 | break; |
| 794 | default: |
| 795 | if (net_ratelimit()) |
| 796 | dev_printk(KERN_ERR, &txq_to_mp(txq)->dev->dev, |
| 797 | "mac header length is %d?!\n", mac_hdr_len); |
| 798 | break; |
| 799 | } |
| 800 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 801 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 802 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 803 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 804 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 805 | break; |
| 806 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 807 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 808 | break; |
| 809 | default: |
| 810 | BUG(); |
| 811 | } |
| 812 | } else { |
| 813 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 814 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 815 | desc->l4i_chk = 0; |
| 816 | } |
| 817 | |
| 818 | /* ensure all other descriptors are written before first cmd_sts */ |
| 819 | wmb(); |
| 820 | desc->cmd_sts = cmd_sts; |
| 821 | |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 822 | /* clear TX_END interrupt status */ |
| 823 | wrl(mp, INT_CAUSE(mp->port_num), ~(INT_TX_END_0 << txq->index)); |
| 824 | rdl(mp, INT_CAUSE(mp->port_num)); |
| 825 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 826 | /* ensure all descriptors are written before poking hardware */ |
| 827 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 828 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 829 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 830 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 831 | } |
| 832 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 833 | static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 835 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 836 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 837 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 840 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 841 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 842 | dev_printk(KERN_DEBUG, &dev->dev, |
| 843 | "failed to linearize skb with tiny " |
| 844 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 845 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 846 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | spin_lock_irqsave(&mp->lock, flags); |
| 849 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 850 | txq = mp->txq + mp->txq_primary; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 851 | |
| 852 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) { |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 853 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 854 | if (txq->index == mp->txq_primary && net_ratelimit()) |
| 855 | dev_printk(KERN_ERR, &dev->dev, |
| 856 | "primary tx queue full?!\n"); |
| 857 | kfree_skb(skb); |
| 858 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 859 | } |
| 860 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 861 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 862 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | stats->tx_packets++; |
| 864 | dev->trans_start = jiffies; |
| 865 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 866 | if (txq->index == mp->txq_primary) { |
| 867 | int entries_left; |
| 868 | |
| 869 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
| 870 | if (entries_left < MAX_DESCS_PER_SKB) |
| 871 | netif_stop_queue(dev); |
| 872 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 873 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | spin_unlock_irqrestore(&mp->lock, flags); |
| 875 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 876 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | } |
| 878 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 879 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 880 | /* tx rate control **********************************************************/ |
| 881 | /* |
| 882 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 883 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 884 | */ |
| 885 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 886 | { |
| 887 | int token_rate; |
| 888 | int mtu; |
| 889 | int bucket_size; |
| 890 | |
| 891 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 892 | if (token_rate > 1023) |
| 893 | token_rate = 1023; |
| 894 | |
| 895 | mtu = (mp->dev->mtu + 255) >> 8; |
| 896 | if (mtu > 63) |
| 897 | mtu = 63; |
| 898 | |
| 899 | bucket_size = (burst + 255) >> 8; |
| 900 | if (bucket_size > 65535) |
| 901 | bucket_size = 65535; |
| 902 | |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 903 | if (mp->shared->tx_bw_control_moved) { |
| 904 | wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); |
| 905 | wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); |
| 906 | wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); |
| 907 | } else { |
| 908 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 909 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 910 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 911 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 915 | { |
| 916 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 917 | int token_rate; |
| 918 | int bucket_size; |
| 919 | |
| 920 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 921 | if (token_rate > 1023) |
| 922 | token_rate = 1023; |
| 923 | |
| 924 | bucket_size = (burst + 255) >> 8; |
| 925 | if (bucket_size > 65535) |
| 926 | bucket_size = 65535; |
| 927 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 928 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
| 929 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 930 | (bucket_size << 10) | token_rate); |
| 931 | } |
| 932 | |
| 933 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 934 | { |
| 935 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 936 | int off; |
| 937 | u32 val; |
| 938 | |
| 939 | /* |
| 940 | * Turn on fixed priority mode. |
| 941 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 942 | if (mp->shared->tx_bw_control_moved) |
| 943 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 944 | else |
| 945 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 946 | |
| 947 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 948 | val |= 1 << txq->index; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 949 | wrl(mp, off, val); |
| 950 | } |
| 951 | |
| 952 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 953 | { |
| 954 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 955 | int off; |
| 956 | u32 val; |
| 957 | |
| 958 | /* |
| 959 | * Turn off fixed priority mode. |
| 960 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 961 | if (mp->shared->tx_bw_control_moved) |
| 962 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 963 | else |
| 964 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 965 | |
| 966 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 967 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 968 | wrl(mp, off, val); |
| 969 | |
| 970 | /* |
| 971 | * Configure WRR weight for this queue. |
| 972 | */ |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 973 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 974 | |
| 975 | val = rdl(mp, off); |
| 976 | val = (val & ~0xff) | (weight & 0xff); |
| 977 | wrl(mp, off, val); |
| 978 | } |
| 979 | |
| 980 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 981 | /* mii management interface *************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 982 | #define SMI_BUSY 0x10000000 |
| 983 | #define SMI_READ_VALID 0x08000000 |
| 984 | #define SMI_OPCODE_READ 0x04000000 |
| 985 | #define SMI_OPCODE_WRITE 0x00000000 |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 986 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 987 | static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, |
| 988 | unsigned int reg, unsigned int *value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 989 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 990 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 991 | unsigned long flags; |
| 992 | int i; |
| 993 | |
| 994 | /* the SMI register is a shared resource */ |
| 995 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 996 | |
| 997 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 998 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 999 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1000 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 1001 | goto out; |
| 1002 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1003 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1004 | } |
| 1005 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1006 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1007 | |
| 1008 | /* now wait for the data to be valid */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1009 | for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1010 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1011 | printk("%s: PHY read timeout\n", mp->dev->name); |
| 1012 | goto out; |
| 1013 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1014 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | *value = readl(smi_reg) & 0xffff; |
| 1018 | out: |
| 1019 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 1020 | } |
| 1021 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1022 | static void smi_reg_write(struct mv643xx_eth_private *mp, |
| 1023 | unsigned int addr, |
| 1024 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1025 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1026 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1027 | unsigned long flags; |
| 1028 | int i; |
| 1029 | |
| 1030 | /* the SMI register is a shared resource */ |
| 1031 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 1032 | |
| 1033 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1034 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1035 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1036 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 1037 | goto out; |
| 1038 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1039 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1040 | } |
| 1041 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1042 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 1043 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1044 | out: |
| 1045 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 1046 | } |
| 1047 | |
| 1048 | |
| 1049 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1050 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1051 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1052 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1053 | } |
| 1054 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1055 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1056 | { |
| 1057 | int i; |
| 1058 | |
| 1059 | for (i = 0; i < 0x80; i += 4) |
| 1060 | mib_read(mp, i); |
| 1061 | } |
| 1062 | |
| 1063 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1064 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1065 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1066 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1067 | p->good_octets_received += mib_read(mp, 0x00); |
| 1068 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 1069 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1070 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1071 | p->good_frames_received += mib_read(mp, 0x10); |
| 1072 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1073 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1074 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1075 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1076 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1077 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1078 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1079 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1080 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1081 | p->good_octets_sent += mib_read(mp, 0x38); |
| 1082 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1083 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1084 | p->excessive_collision += mib_read(mp, 0x44); |
| 1085 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1086 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1087 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1088 | p->fc_sent += mib_read(mp, 0x54); |
| 1089 | p->good_fc_received += mib_read(mp, 0x58); |
| 1090 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1091 | p->undersize_received += mib_read(mp, 0x60); |
| 1092 | p->fragments_received += mib_read(mp, 0x64); |
| 1093 | p->oversize_received += mib_read(mp, 0x68); |
| 1094 | p->jabber_received += mib_read(mp, 0x6c); |
| 1095 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1096 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1097 | p->collision += mib_read(mp, 0x78); |
| 1098 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1099 | } |
| 1100 | |
| 1101 | |
| 1102 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1103 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1104 | char stat_string[ETH_GSTRING_LEN]; |
| 1105 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1106 | int netdev_off; |
| 1107 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1108 | }; |
| 1109 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1110 | #define SSTAT(m) \ |
| 1111 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1112 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1113 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1114 | #define MIBSTAT(m) \ |
| 1115 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1116 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1117 | |
| 1118 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1119 | SSTAT(rx_packets), |
| 1120 | SSTAT(tx_packets), |
| 1121 | SSTAT(rx_bytes), |
| 1122 | SSTAT(tx_bytes), |
| 1123 | SSTAT(rx_errors), |
| 1124 | SSTAT(tx_errors), |
| 1125 | SSTAT(rx_dropped), |
| 1126 | SSTAT(tx_dropped), |
| 1127 | MIBSTAT(good_octets_received), |
| 1128 | MIBSTAT(bad_octets_received), |
| 1129 | MIBSTAT(internal_mac_transmit_err), |
| 1130 | MIBSTAT(good_frames_received), |
| 1131 | MIBSTAT(bad_frames_received), |
| 1132 | MIBSTAT(broadcast_frames_received), |
| 1133 | MIBSTAT(multicast_frames_received), |
| 1134 | MIBSTAT(frames_64_octets), |
| 1135 | MIBSTAT(frames_65_to_127_octets), |
| 1136 | MIBSTAT(frames_128_to_255_octets), |
| 1137 | MIBSTAT(frames_256_to_511_octets), |
| 1138 | MIBSTAT(frames_512_to_1023_octets), |
| 1139 | MIBSTAT(frames_1024_to_max_octets), |
| 1140 | MIBSTAT(good_octets_sent), |
| 1141 | MIBSTAT(good_frames_sent), |
| 1142 | MIBSTAT(excessive_collision), |
| 1143 | MIBSTAT(multicast_frames_sent), |
| 1144 | MIBSTAT(broadcast_frames_sent), |
| 1145 | MIBSTAT(unrec_mac_control_received), |
| 1146 | MIBSTAT(fc_sent), |
| 1147 | MIBSTAT(good_fc_received), |
| 1148 | MIBSTAT(bad_fc_received), |
| 1149 | MIBSTAT(undersize_received), |
| 1150 | MIBSTAT(fragments_received), |
| 1151 | MIBSTAT(oversize_received), |
| 1152 | MIBSTAT(jabber_received), |
| 1153 | MIBSTAT(mac_receive_error), |
| 1154 | MIBSTAT(bad_crc_event), |
| 1155 | MIBSTAT(collision), |
| 1156 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1157 | }; |
| 1158 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1159 | static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1160 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1161 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1162 | int err; |
| 1163 | |
| 1164 | spin_lock_irq(&mp->lock); |
| 1165 | err = mii_ethtool_gset(&mp->mii, cmd); |
| 1166 | spin_unlock_irq(&mp->lock); |
| 1167 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1168 | /* |
| 1169 | * The MAC does not support 1000baseT_Half. |
| 1170 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1171 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1172 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1173 | |
| 1174 | return err; |
| 1175 | } |
| 1176 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1177 | static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1178 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1179 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1180 | u32 port_status; |
| 1181 | |
| 1182 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1183 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1184 | cmd->supported = SUPPORTED_MII; |
| 1185 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1186 | switch (port_status & PORT_SPEED_MASK) { |
| 1187 | case PORT_SPEED_10: |
| 1188 | cmd->speed = SPEED_10; |
| 1189 | break; |
| 1190 | case PORT_SPEED_100: |
| 1191 | cmd->speed = SPEED_100; |
| 1192 | break; |
| 1193 | case PORT_SPEED_1000: |
| 1194 | cmd->speed = SPEED_1000; |
| 1195 | break; |
| 1196 | default: |
| 1197 | cmd->speed = -1; |
| 1198 | break; |
| 1199 | } |
| 1200 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1201 | cmd->port = PORT_MII; |
| 1202 | cmd->phy_address = 0; |
| 1203 | cmd->transceiver = XCVR_INTERNAL; |
| 1204 | cmd->autoneg = AUTONEG_DISABLE; |
| 1205 | cmd->maxtxpkt = 1; |
| 1206 | cmd->maxrxpkt = 1; |
| 1207 | |
| 1208 | return 0; |
| 1209 | } |
| 1210 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1211 | static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1212 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1213 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1214 | int err; |
| 1215 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1216 | /* |
| 1217 | * The MAC does not support 1000baseT_Half. |
| 1218 | */ |
| 1219 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1220 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1221 | spin_lock_irq(&mp->lock); |
| 1222 | err = mii_ethtool_sset(&mp->mii, cmd); |
| 1223 | spin_unlock_irq(&mp->lock); |
| 1224 | |
| 1225 | return err; |
| 1226 | } |
| 1227 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1228 | static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1229 | { |
| 1230 | return -EINVAL; |
| 1231 | } |
| 1232 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1233 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1234 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1235 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1236 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1237 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1238 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1239 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1240 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1241 | } |
| 1242 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1243 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1244 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1245 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1246 | |
| 1247 | return mii_nway_restart(&mp->mii); |
| 1248 | } |
| 1249 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1250 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
| 1251 | { |
| 1252 | return -EINVAL; |
| 1253 | } |
| 1254 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1255 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1256 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1257 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1258 | |
| 1259 | return mii_link_ok(&mp->mii); |
| 1260 | } |
| 1261 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1262 | static u32 mv643xx_eth_get_link_phyless(struct net_device *dev) |
| 1263 | { |
| 1264 | return 1; |
| 1265 | } |
| 1266 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1267 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1268 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1269 | { |
| 1270 | int i; |
| 1271 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1272 | if (stringset == ETH_SS_STATS) { |
| 1273 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1274 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1275 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1276 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1277 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1278 | } |
| 1279 | } |
| 1280 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1281 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1282 | struct ethtool_stats *stats, |
| 1283 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1284 | { |
Lennert Buytenhek | b987384 | 2008-08-24 05:59:16 +0200 | [diff] [blame] | 1285 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1286 | int i; |
| 1287 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1288 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1289 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1290 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1291 | const struct mv643xx_eth_stats *stat; |
| 1292 | void *p; |
| 1293 | |
| 1294 | stat = mv643xx_eth_stats + i; |
| 1295 | |
| 1296 | if (stat->netdev_off >= 0) |
| 1297 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1298 | else |
| 1299 | p = ((void *)mp) + stat->mp_off; |
| 1300 | |
| 1301 | data[i] = (stat->sizeof_stat == 8) ? |
| 1302 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1303 | } |
| 1304 | } |
| 1305 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1306 | static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1307 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1308 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1309 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1310 | |
| 1311 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1312 | } |
| 1313 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1314 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1315 | .get_settings = mv643xx_eth_get_settings, |
| 1316 | .set_settings = mv643xx_eth_set_settings, |
| 1317 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1318 | .nway_reset = mv643xx_eth_nway_reset, |
| 1319 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1320 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1321 | .get_strings = mv643xx_eth_get_strings, |
| 1322 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1323 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1324 | }; |
| 1325 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1326 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
| 1327 | .get_settings = mv643xx_eth_get_settings_phyless, |
| 1328 | .set_settings = mv643xx_eth_set_settings_phyless, |
| 1329 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1330 | .nway_reset = mv643xx_eth_nway_reset_phyless, |
| 1331 | .get_link = mv643xx_eth_get_link_phyless, |
| 1332 | .set_sg = ethtool_op_set_sg, |
| 1333 | .get_strings = mv643xx_eth_get_strings, |
| 1334 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1335 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1336 | }; |
| 1337 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1338 | |
| 1339 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1340 | static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1341 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1342 | unsigned int mac_h; |
| 1343 | unsigned int mac_l; |
| 1344 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1345 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1346 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1347 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1348 | addr[0] = (mac_h >> 24) & 0xff; |
| 1349 | addr[1] = (mac_h >> 16) & 0xff; |
| 1350 | addr[2] = (mac_h >> 8) & 0xff; |
| 1351 | addr[3] = mac_h & 0xff; |
| 1352 | addr[4] = (mac_l >> 8) & 0xff; |
| 1353 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1354 | } |
| 1355 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1356 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1357 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1358 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1359 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1360 | for (i = 0; i < 0x100; i += 4) { |
| 1361 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1362 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1363 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1364 | |
| 1365 | for (i = 0; i < 0x10; i += 4) |
| 1366 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1367 | } |
| 1368 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1369 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1370 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1371 | { |
| 1372 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1373 | |
| 1374 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1375 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1376 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1377 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1378 | } |
| 1379 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1380 | static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1381 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1382 | unsigned int mac_h; |
| 1383 | unsigned int mac_l; |
| 1384 | int table; |
| 1385 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1386 | mac_l = (addr[4] << 8) | addr[5]; |
| 1387 | mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1388 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1389 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1390 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1391 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1392 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1393 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1394 | } |
| 1395 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1396 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1397 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1398 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1399 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1400 | /* +2 is for the offset of the HW addr type */ |
| 1401 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1402 | |
| 1403 | init_mac_tables(mp); |
| 1404 | uc_addr_set(mp, dev->dev_addr); |
| 1405 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1406 | return 0; |
| 1407 | } |
| 1408 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1409 | static int addr_crc(unsigned char *addr) |
| 1410 | { |
| 1411 | int crc = 0; |
| 1412 | int i; |
| 1413 | |
| 1414 | for (i = 0; i < 6; i++) { |
| 1415 | int j; |
| 1416 | |
| 1417 | crc = (crc ^ addr[i]) << 8; |
| 1418 | for (j = 7; j >= 0; j--) { |
| 1419 | if (crc & (0x100 << j)) |
| 1420 | crc ^= 0x107 << j; |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | return crc; |
| 1425 | } |
| 1426 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1427 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1428 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1429 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1430 | u32 port_config; |
| 1431 | struct dev_addr_list *addr; |
| 1432 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1433 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1434 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1435 | if (dev->flags & IFF_PROMISC) |
| 1436 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1437 | else |
| 1438 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1439 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1440 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1441 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1442 | int port_num = mp->port_num; |
| 1443 | u32 accept = 0x01010101; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1444 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1445 | for (i = 0; i < 0x100; i += 4) { |
| 1446 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1447 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1448 | } |
| 1449 | return; |
| 1450 | } |
| 1451 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1452 | for (i = 0; i < 0x100; i += 4) { |
| 1453 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1454 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1455 | } |
| 1456 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1457 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1458 | u8 *a = addr->da_addr; |
| 1459 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1460 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1461 | if (addr->da_addrlen != 6) |
| 1462 | continue; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1463 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1464 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1465 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1466 | set_filter_table_entry(mp, table, a[5]); |
| 1467 | } else { |
| 1468 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1469 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1470 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1471 | set_filter_table_entry(mp, table, crc); |
| 1472 | } |
| 1473 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1474 | } |
| 1475 | |
| 1476 | |
| 1477 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1478 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1479 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1480 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1481 | struct rx_desc *rx_desc; |
| 1482 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1483 | int i; |
| 1484 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1485 | rxq->index = index; |
| 1486 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1487 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1488 | |
| 1489 | rxq->rx_desc_count = 0; |
| 1490 | rxq->rx_curr_desc = 0; |
| 1491 | rxq->rx_used_desc = 0; |
| 1492 | |
| 1493 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1494 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1495 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1496 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1497 | mp->rx_desc_sram_size); |
| 1498 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1499 | } else { |
| 1500 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1501 | &rxq->rx_desc_dma, |
| 1502 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1503 | } |
| 1504 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1505 | if (rxq->rx_desc_area == NULL) { |
| 1506 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1507 | "can't allocate rx ring (%d bytes)\n", size); |
| 1508 | goto out; |
| 1509 | } |
| 1510 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1511 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1512 | rxq->rx_desc_area_size = size; |
| 1513 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1514 | GFP_KERNEL); |
| 1515 | if (rxq->rx_skb == NULL) { |
| 1516 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1517 | "can't allocate rx skb ring\n"); |
| 1518 | goto out_free; |
| 1519 | } |
| 1520 | |
| 1521 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1522 | for (i = 0; i < rxq->rx_ring_size; i++) { |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 1523 | int nexti; |
| 1524 | |
| 1525 | nexti = i + 1; |
| 1526 | if (nexti == rxq->rx_ring_size) |
| 1527 | nexti = 0; |
| 1528 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1529 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1530 | nexti * sizeof(struct rx_desc); |
| 1531 | } |
| 1532 | |
| 1533 | init_timer(&rxq->rx_oom); |
| 1534 | rxq->rx_oom.data = (unsigned long)rxq; |
| 1535 | rxq->rx_oom.function = rxq_refill_timer_wrapper; |
| 1536 | |
| 1537 | return 0; |
| 1538 | |
| 1539 | |
| 1540 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1541 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1542 | iounmap(rxq->rx_desc_area); |
| 1543 | else |
| 1544 | dma_free_coherent(NULL, size, |
| 1545 | rxq->rx_desc_area, |
| 1546 | rxq->rx_desc_dma); |
| 1547 | |
| 1548 | out: |
| 1549 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1550 | } |
| 1551 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1552 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1553 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1554 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1555 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1556 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1557 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1558 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1559 | del_timer_sync(&rxq->rx_oom); |
| 1560 | |
| 1561 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1562 | if (rxq->rx_skb[i]) { |
| 1563 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1564 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1565 | } |
| 1566 | } |
| 1567 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1568 | if (rxq->rx_desc_count) { |
| 1569 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1570 | "error freeing rx ring -- %d skbs stuck\n", |
| 1571 | rxq->rx_desc_count); |
| 1572 | } |
| 1573 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1574 | if (rxq->index == mp->rxq_primary && |
| 1575 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1576 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1577 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1578 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1579 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1580 | |
| 1581 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1582 | } |
| 1583 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1584 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1585 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1586 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1587 | struct tx_desc *tx_desc; |
| 1588 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1589 | int i; |
| 1590 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1591 | txq->index = index; |
| 1592 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1593 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1594 | |
| 1595 | txq->tx_desc_count = 0; |
| 1596 | txq->tx_curr_desc = 0; |
| 1597 | txq->tx_used_desc = 0; |
| 1598 | |
| 1599 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1600 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1601 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1602 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1603 | mp->tx_desc_sram_size); |
| 1604 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1605 | } else { |
| 1606 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1607 | &txq->tx_desc_dma, |
| 1608 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1609 | } |
| 1610 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1611 | if (txq->tx_desc_area == NULL) { |
| 1612 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1613 | "can't allocate tx ring (%d bytes)\n", size); |
| 1614 | goto out; |
| 1615 | } |
| 1616 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1617 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1618 | txq->tx_desc_area_size = size; |
| 1619 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1620 | GFP_KERNEL); |
| 1621 | if (txq->tx_skb == NULL) { |
| 1622 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1623 | "can't allocate tx skb ring\n"); |
| 1624 | goto out_free; |
| 1625 | } |
| 1626 | |
| 1627 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1628 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1629 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 1630 | int nexti; |
| 1631 | |
| 1632 | nexti = i + 1; |
| 1633 | if (nexti == txq->tx_ring_size) |
| 1634 | nexti = 0; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1635 | |
| 1636 | txd->cmd_sts = 0; |
| 1637 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1638 | nexti * sizeof(struct tx_desc); |
| 1639 | } |
| 1640 | |
| 1641 | return 0; |
| 1642 | |
| 1643 | |
| 1644 | out_free: |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1645 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1646 | iounmap(txq->tx_desc_area); |
| 1647 | else |
| 1648 | dma_free_coherent(NULL, size, |
| 1649 | txq->tx_desc_area, |
| 1650 | txq->tx_desc_dma); |
| 1651 | |
| 1652 | out: |
| 1653 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1654 | } |
| 1655 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1656 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1657 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1658 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1659 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1660 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1661 | spin_lock_irqsave(&mp->lock, flags); |
| 1662 | while (txq->tx_desc_count > 0) { |
| 1663 | int tx_index; |
| 1664 | struct tx_desc *desc; |
| 1665 | u32 cmd_sts; |
| 1666 | struct sk_buff *skb; |
| 1667 | dma_addr_t addr; |
| 1668 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1669 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1670 | tx_index = txq->tx_used_desc; |
| 1671 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1672 | cmd_sts = desc->cmd_sts; |
| 1673 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1674 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 1675 | if (!force) |
| 1676 | break; |
| 1677 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 1678 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1679 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame^] | 1680 | txq->tx_used_desc = tx_index + 1; |
| 1681 | if (txq->tx_used_desc == txq->tx_ring_size) |
| 1682 | txq->tx_used_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1683 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1684 | |
| 1685 | addr = desc->buf_ptr; |
| 1686 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1687 | skb = txq->tx_skb[tx_index]; |
| 1688 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1689 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1690 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1691 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1692 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1693 | } |
| 1694 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1695 | /* |
| 1696 | * Drop mp->lock while we free the skb. |
| 1697 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1698 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1699 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1700 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1701 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1702 | else |
| 1703 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1704 | |
| 1705 | if (skb) |
| 1706 | dev_kfree_skb_irq(skb); |
| 1707 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1708 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1709 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1710 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1711 | } |
| 1712 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1713 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1714 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1715 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1716 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1717 | txq_disable(txq); |
| 1718 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1719 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1720 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1721 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1722 | if (txq->index == mp->txq_primary && |
| 1723 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1724 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1725 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1726 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1727 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1728 | |
| 1729 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1730 | } |
| 1731 | |
| 1732 | |
| 1733 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1734 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1735 | { |
| 1736 | struct net_device *dev = mp->dev; |
| 1737 | u32 port_status; |
| 1738 | int speed; |
| 1739 | int duplex; |
| 1740 | int fc; |
| 1741 | |
| 1742 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1743 | if (!(port_status & LINK_UP)) { |
| 1744 | if (netif_carrier_ok(dev)) { |
| 1745 | int i; |
| 1746 | |
| 1747 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 1748 | |
| 1749 | netif_carrier_off(dev); |
| 1750 | netif_stop_queue(dev); |
| 1751 | |
| 1752 | for (i = 0; i < 8; i++) { |
| 1753 | struct tx_queue *txq = mp->txq + i; |
| 1754 | |
| 1755 | if (mp->txq_mask & (1 << i)) { |
| 1756 | txq_reclaim(txq, 1); |
| 1757 | txq_reset_hw_ptr(txq); |
| 1758 | } |
| 1759 | } |
| 1760 | } |
| 1761 | return; |
| 1762 | } |
| 1763 | |
| 1764 | switch (port_status & PORT_SPEED_MASK) { |
| 1765 | case PORT_SPEED_10: |
| 1766 | speed = 10; |
| 1767 | break; |
| 1768 | case PORT_SPEED_100: |
| 1769 | speed = 100; |
| 1770 | break; |
| 1771 | case PORT_SPEED_1000: |
| 1772 | speed = 1000; |
| 1773 | break; |
| 1774 | default: |
| 1775 | speed = -1; |
| 1776 | break; |
| 1777 | } |
| 1778 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1779 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1780 | |
| 1781 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " |
| 1782 | "flow control %sabled\n", dev->name, |
| 1783 | speed, duplex ? "full" : "half", |
| 1784 | fc ? "en" : "dis"); |
| 1785 | |
| 1786 | if (!netif_carrier_ok(dev)) { |
| 1787 | netif_carrier_on(dev); |
| 1788 | netif_wake_queue(dev); |
| 1789 | } |
| 1790 | } |
| 1791 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1792 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1793 | { |
| 1794 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1795 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1796 | u32 int_cause; |
| 1797 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1798 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1799 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & |
| 1800 | (INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1801 | if (int_cause == 0) |
| 1802 | return IRQ_NONE; |
| 1803 | |
| 1804 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1805 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1806 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1807 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1808 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1809 | } |
| 1810 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1811 | if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) |
| 1812 | handle_link_event(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1813 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1814 | /* |
| 1815 | * RxBuffer or RxError set for any of the 8 queues? |
| 1816 | */ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1817 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1818 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 819ddca | 2008-08-24 02:45:32 +0200 | [diff] [blame] | 1819 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_RX)); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1820 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1821 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1822 | |
| 1823 | netif_rx_schedule(dev, &mp->napi); |
| 1824 | } |
| 1825 | #else |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1826 | if (int_cause & INT_RX) { |
| 1827 | int i; |
| 1828 | |
| 1829 | for (i = 7; i >= 0; i--) |
| 1830 | if (mp->rxq_mask & (1 << i)) |
| 1831 | rxq_process(mp->rxq + i, INT_MAX); |
| 1832 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1833 | #endif |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1834 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1835 | /* |
| 1836 | * TxBuffer or TxError set for any of the 8 queues? |
| 1837 | */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1838 | if (int_cause_ext & INT_EXT_TX) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1839 | int i; |
| 1840 | |
| 1841 | for (i = 0; i < 8; i++) |
| 1842 | if (mp->txq_mask & (1 << i)) |
| 1843 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1844 | |
| 1845 | /* |
| 1846 | * Enough space again in the primary TX queue for a |
| 1847 | * full packet? |
| 1848 | */ |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1849 | if (netif_carrier_ok(dev)) { |
| 1850 | spin_lock(&mp->lock); |
| 1851 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
| 1852 | spin_unlock(&mp->lock); |
| 1853 | } |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1854 | } |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1855 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1856 | /* |
| 1857 | * Any TxEnd interrupts? |
| 1858 | */ |
| 1859 | if (int_cause & INT_TX_END) { |
| 1860 | int i; |
| 1861 | |
| 1862 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_TX_END)); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1863 | |
| 1864 | spin_lock(&mp->lock); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1865 | for (i = 0; i < 8; i++) { |
| 1866 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1867 | u32 hw_desc_ptr; |
| 1868 | u32 expected_ptr; |
| 1869 | |
| 1870 | if ((int_cause & (INT_TX_END_0 << i)) == 0) |
| 1871 | continue; |
| 1872 | |
| 1873 | hw_desc_ptr = |
| 1874 | rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, i)); |
| 1875 | expected_ptr = (u32)txq->tx_desc_dma + |
| 1876 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1877 | |
| 1878 | if (hw_desc_ptr != expected_ptr) |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1879 | txq_enable(txq); |
| 1880 | } |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1881 | spin_unlock(&mp->lock); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1882 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1883 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1884 | return IRQ_HANDLED; |
| 1885 | } |
| 1886 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1887 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1888 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1889 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1890 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1891 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 1892 | data |= BMCR_RESET; |
| 1893 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1894 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1895 | do { |
| 1896 | udelay(1); |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1897 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 1898 | } while (data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1899 | } |
| 1900 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1901 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1902 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1903 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1904 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1905 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1906 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1907 | * Perform PHY reset, if there is a PHY. |
| 1908 | */ |
| 1909 | if (mp->phy_addr != -1) { |
| 1910 | struct ethtool_cmd cmd; |
| 1911 | |
| 1912 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 1913 | phy_reset(mp); |
| 1914 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 1915 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1916 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1917 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1918 | * Configure basic link parameters. |
| 1919 | */ |
| 1920 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1921 | |
| 1922 | pscr |= SERIAL_PORT_ENABLE; |
| 1923 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1924 | |
| 1925 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
| 1926 | if (mp->phy_addr == -1) |
| 1927 | pscr |= FORCE_LINK_PASS; |
| 1928 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1929 | |
| 1930 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1931 | |
| 1932 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1933 | * Configure TX path and queues. |
| 1934 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1935 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1936 | for (i = 0; i < 8; i++) { |
| 1937 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1938 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1939 | if ((mp->txq_mask & (1 << i)) == 0) |
| 1940 | continue; |
| 1941 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1942 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1943 | txq_set_rate(txq, 1000000000, 16777216); |
| 1944 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1945 | } |
| 1946 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1947 | /* |
| 1948 | * Add configured unicast address to address filter table. |
| 1949 | */ |
| 1950 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1951 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1952 | /* |
| 1953 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1954 | * frames to RX queue #0. |
| 1955 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1956 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1957 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1958 | /* |
| 1959 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1960 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1961 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1962 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1963 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1964 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1965 | */ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1966 | for (i = 0; i < 8; i++) { |
| 1967 | struct rx_queue *rxq = mp->rxq + i; |
| 1968 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1969 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1970 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1971 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1972 | continue; |
| 1973 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1974 | addr = (u32)rxq->rx_desc_dma; |
| 1975 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1976 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1977 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1978 | rxq_enable(rxq); |
| 1979 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1980 | } |
| 1981 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1982 | static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1983 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1984 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1985 | u32 val; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1986 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1987 | val = rdl(mp, SDMA_CONFIG(mp->port_num)); |
| 1988 | if (mp->shared->extended_rx_coal_limit) { |
| 1989 | if (coal > 0xffff) |
| 1990 | coal = 0xffff; |
| 1991 | val &= ~0x023fff80; |
| 1992 | val |= (coal & 0x8000) << 10; |
| 1993 | val |= (coal & 0x7fff) << 7; |
| 1994 | } else { |
| 1995 | if (coal > 0x3fff) |
| 1996 | coal = 0x3fff; |
| 1997 | val &= ~0x003fff00; |
| 1998 | val |= (coal & 0x3fff) << 8; |
| 1999 | } |
| 2000 | wrl(mp, SDMA_CONFIG(mp->port_num), val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2001 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2002 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2003 | static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2004 | { |
| 2005 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 2006 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2007 | if (coal > 0x3fff) |
| 2008 | coal = 0x3fff; |
| 2009 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2010 | } |
| 2011 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2012 | static int mv643xx_eth_open(struct net_device *dev) |
| 2013 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2014 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2015 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2016 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2017 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2018 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 2019 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 2020 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2021 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2022 | err = request_irq(dev->irq, mv643xx_eth_irq, |
Lennert Buytenhek | 2a1867a | 2008-08-23 23:43:38 +0200 | [diff] [blame] | 2023 | IRQF_SHARED, dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2024 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2025 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2026 | return -EAGAIN; |
| 2027 | } |
| 2028 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2029 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2030 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2031 | for (i = 0; i < 8; i++) { |
| 2032 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 2033 | continue; |
| 2034 | |
| 2035 | err = rxq_init(mp, i); |
| 2036 | if (err) { |
| 2037 | while (--i >= 0) |
| 2038 | if (mp->rxq_mask & (1 << i)) |
| 2039 | rxq_deinit(mp->rxq + i); |
| 2040 | goto out; |
| 2041 | } |
| 2042 | |
| 2043 | rxq_refill(mp->rxq + i); |
| 2044 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2045 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2046 | for (i = 0; i < 8; i++) { |
| 2047 | if ((mp->txq_mask & (1 << i)) == 0) |
| 2048 | continue; |
| 2049 | |
| 2050 | err = txq_init(mp, i); |
| 2051 | if (err) { |
| 2052 | while (--i >= 0) |
| 2053 | if (mp->txq_mask & (1 << i)) |
| 2054 | txq_deinit(mp->txq + i); |
| 2055 | goto out_free; |
| 2056 | } |
| 2057 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2058 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2059 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2060 | napi_enable(&mp->napi); |
| 2061 | #endif |
| 2062 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2063 | netif_carrier_off(dev); |
| 2064 | netif_stop_queue(dev); |
| 2065 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2066 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2067 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2068 | set_rx_coal(mp, 0); |
| 2069 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2070 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2071 | wrl(mp, INT_MASK_EXT(mp->port_num), |
| 2072 | INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2073 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 2074 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2075 | |
| 2076 | return 0; |
| 2077 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2078 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2079 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2080 | for (i = 0; i < 8; i++) |
| 2081 | if (mp->rxq_mask & (1 << i)) |
| 2082 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2083 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2084 | free_irq(dev->irq, dev); |
| 2085 | |
| 2086 | return err; |
| 2087 | } |
| 2088 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2089 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2090 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2091 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2092 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2093 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2094 | for (i = 0; i < 8; i++) { |
| 2095 | if (mp->rxq_mask & (1 << i)) |
| 2096 | rxq_disable(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2097 | if (mp->txq_mask & (1 << i)) |
| 2098 | txq_disable(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2099 | } |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2100 | |
| 2101 | while (1) { |
| 2102 | u32 ps = rdl(mp, PORT_STATUS(mp->port_num)); |
| 2103 | |
| 2104 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2105 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2106 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2107 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2108 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2109 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2110 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2111 | data &= ~(SERIAL_PORT_ENABLE | |
| 2112 | DO_NOT_FORCE_LINK_FAIL | |
| 2113 | FORCE_LINK_PASS); |
| 2114 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2115 | } |
| 2116 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2117 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2118 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2119 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2120 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2121 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2122 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2123 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2124 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2125 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2126 | napi_disable(&mp->napi); |
| 2127 | #endif |
| 2128 | netif_carrier_off(dev); |
| 2129 | netif_stop_queue(dev); |
| 2130 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2131 | free_irq(dev->irq, dev); |
| 2132 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2133 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2134 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2135 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2136 | for (i = 0; i < 8; i++) { |
| 2137 | if (mp->rxq_mask & (1 << i)) |
| 2138 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2139 | if (mp->txq_mask & (1 << i)) |
| 2140 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2141 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2142 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2143 | return 0; |
| 2144 | } |
| 2145 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2146 | static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2147 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2148 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2149 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2150 | if (mp->phy_addr != -1) |
| 2151 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 2152 | |
| 2153 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2154 | } |
| 2155 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2156 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2157 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2158 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2159 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2160 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2161 | return -EINVAL; |
| 2162 | |
| 2163 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2164 | tx_set_rate(mp, 1000000000, 16777216); |
| 2165 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2166 | if (!netif_running(dev)) |
| 2167 | return 0; |
| 2168 | |
| 2169 | /* |
| 2170 | * Stop and then re-open the interface. This will allocate RX |
| 2171 | * skbs of the new MTU. |
| 2172 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2173 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2174 | */ |
| 2175 | mv643xx_eth_stop(dev); |
| 2176 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2177 | dev_printk(KERN_ERR, &dev->dev, |
| 2178 | "fatal error on re-opening device after " |
| 2179 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2180 | } |
| 2181 | |
| 2182 | return 0; |
| 2183 | } |
| 2184 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2185 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2186 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2187 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2188 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2189 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2190 | if (netif_running(mp->dev)) { |
| 2191 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2192 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2193 | port_reset(mp); |
| 2194 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2195 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2196 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2197 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2198 | } |
| 2199 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2200 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2201 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2202 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2203 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2204 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2205 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2206 | schedule_work(&mp->tx_timeout_task); |
| 2207 | } |
| 2208 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2209 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2210 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2211 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2212 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2213 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2214 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2215 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2216 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2217 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2218 | |
Lennert Buytenhek | f2ca60f | 2008-07-07 00:03:00 +0200 | [diff] [blame] | 2219 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2220 | } |
| 2221 | #endif |
| 2222 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2223 | static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2224 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2225 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2226 | int val; |
| 2227 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2228 | smi_reg_read(mp, addr, reg, &val); |
| 2229 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2230 | return val; |
| 2231 | } |
| 2232 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2233 | static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2234 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2235 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2236 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2237 | } |
| 2238 | |
| 2239 | |
| 2240 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2241 | static void |
| 2242 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2243 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2244 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2245 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2246 | u32 win_enable; |
| 2247 | u32 win_protect; |
| 2248 | int i; |
| 2249 | |
| 2250 | for (i = 0; i < 6; i++) { |
| 2251 | writel(0, base + WINDOW_BASE(i)); |
| 2252 | writel(0, base + WINDOW_SIZE(i)); |
| 2253 | if (i < 4) |
| 2254 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2255 | } |
| 2256 | |
| 2257 | win_enable = 0x3f; |
| 2258 | win_protect = 0; |
| 2259 | |
| 2260 | for (i = 0; i < dram->num_cs; i++) { |
| 2261 | struct mbus_dram_window *cs = dram->cs + i; |
| 2262 | |
| 2263 | writel((cs->base & 0xffff0000) | |
| 2264 | (cs->mbus_attr << 8) | |
| 2265 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2266 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2267 | |
| 2268 | win_enable &= ~(1 << i); |
| 2269 | win_protect |= 3 << (2 * i); |
| 2270 | } |
| 2271 | |
| 2272 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2273 | msp->win_protect = win_protect; |
| 2274 | } |
| 2275 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2276 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2277 | { |
| 2278 | /* |
| 2279 | * Check whether we have a 14-bit coal limit field in bits |
| 2280 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2281 | * SDMA config register. |
| 2282 | */ |
| 2283 | writel(0x02000000, msp->base + SDMA_CONFIG(0)); |
| 2284 | if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) |
| 2285 | msp->extended_rx_coal_limit = 1; |
| 2286 | else |
| 2287 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2288 | |
| 2289 | /* |
| 2290 | * Check whether the TX rate control registers are in the |
| 2291 | * old or the new place. |
| 2292 | */ |
| 2293 | writel(1, msp->base + TX_BW_MTU_MOVED(0)); |
| 2294 | if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) |
| 2295 | msp->tx_bw_control_moved = 1; |
| 2296 | else |
| 2297 | msp->tx_bw_control_moved = 0; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2298 | } |
| 2299 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2300 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2301 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2302 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2303 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2304 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2305 | struct resource *res; |
| 2306 | int ret; |
| 2307 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2308 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | 7dde154 | 2008-07-15 12:20:30 +0200 | [diff] [blame] | 2309 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
| 2310 | "driver version %s\n", mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2311 | |
| 2312 | ret = -EINVAL; |
| 2313 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2314 | if (res == NULL) |
| 2315 | goto out; |
| 2316 | |
| 2317 | ret = -ENOMEM; |
| 2318 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2319 | if (msp == NULL) |
| 2320 | goto out; |
| 2321 | memset(msp, 0, sizeof(*msp)); |
| 2322 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2323 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2324 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2325 | goto out_free; |
| 2326 | |
| 2327 | spin_lock_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2328 | |
| 2329 | /* |
| 2330 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2331 | */ |
| 2332 | if (pd != NULL && pd->dram != NULL) |
| 2333 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2334 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2335 | /* |
| 2336 | * Detect hardware parameters. |
| 2337 | */ |
| 2338 | msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2339 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2340 | |
| 2341 | platform_set_drvdata(pdev, msp); |
| 2342 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2343 | return 0; |
| 2344 | |
| 2345 | out_free: |
| 2346 | kfree(msp); |
| 2347 | out: |
| 2348 | return ret; |
| 2349 | } |
| 2350 | |
| 2351 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2352 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2353 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2354 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2355 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2356 | kfree(msp); |
| 2357 | |
| 2358 | return 0; |
| 2359 | } |
| 2360 | |
| 2361 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2362 | .probe = mv643xx_eth_shared_probe, |
| 2363 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2364 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2365 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2366 | .owner = THIS_MODULE, |
| 2367 | }, |
| 2368 | }; |
| 2369 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2370 | static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2371 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2372 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2373 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2374 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2375 | data = rdl(mp, PHY_ADDR); |
| 2376 | data &= ~(0x1f << addr_shift); |
| 2377 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2378 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2379 | } |
| 2380 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2381 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2382 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2383 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2384 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2385 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2386 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2387 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2388 | } |
| 2389 | |
| 2390 | static void set_params(struct mv643xx_eth_private *mp, |
| 2391 | struct mv643xx_eth_platform_data *pd) |
| 2392 | { |
| 2393 | struct net_device *dev = mp->dev; |
| 2394 | |
| 2395 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2396 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2397 | else |
| 2398 | uc_addr_get(mp, dev->dev_addr); |
| 2399 | |
| 2400 | if (pd->phy_addr == -1) { |
| 2401 | mp->shared_smi = NULL; |
| 2402 | mp->phy_addr = -1; |
| 2403 | } else { |
| 2404 | mp->shared_smi = mp->shared; |
| 2405 | if (pd->shared_smi != NULL) |
| 2406 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2407 | |
| 2408 | if (pd->force_phy_addr || pd->phy_addr) { |
| 2409 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2410 | phy_addr_set(mp, mp->phy_addr); |
| 2411 | } else { |
| 2412 | mp->phy_addr = phy_addr_get(mp); |
| 2413 | } |
| 2414 | } |
| 2415 | |
| 2416 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2417 | if (pd->rx_queue_size) |
| 2418 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2419 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2420 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2421 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2422 | if (pd->rx_queue_mask) |
| 2423 | mp->rxq_mask = pd->rx_queue_mask; |
| 2424 | else |
| 2425 | mp->rxq_mask = 0x01; |
| 2426 | mp->rxq_primary = fls(mp->rxq_mask) - 1; |
| 2427 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2428 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2429 | if (pd->tx_queue_size) |
| 2430 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2431 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2432 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2433 | |
| 2434 | if (pd->tx_queue_mask) |
| 2435 | mp->txq_mask = pd->tx_queue_mask; |
| 2436 | else |
| 2437 | mp->txq_mask = 0x01; |
| 2438 | mp->txq_primary = fls(mp->txq_mask) - 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2439 | } |
| 2440 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2441 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2442 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2443 | unsigned int data; |
| 2444 | unsigned int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2445 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2446 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 2447 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data ^ BMCR_ANENABLE); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2448 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2449 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data2); |
| 2450 | if (((data ^ data2) & BMCR_ANENABLE) == 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2451 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2452 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2453 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2454 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2455 | return 0; |
| 2456 | } |
| 2457 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2458 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2459 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2460 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2461 | struct ethtool_cmd cmd; |
| 2462 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2463 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2464 | err = phy_detect(mp); |
| 2465 | if (err) { |
| 2466 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2467 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2468 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2469 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2470 | phy_reset(mp); |
| 2471 | |
| 2472 | mp->mii.phy_id = mp->phy_addr; |
| 2473 | mp->mii.phy_id_mask = 0x3f; |
| 2474 | mp->mii.reg_num_mask = 0x1f; |
| 2475 | mp->mii.dev = mp->dev; |
| 2476 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2477 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2478 | |
| 2479 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2480 | |
| 2481 | memset(&cmd, 0, sizeof(cmd)); |
| 2482 | |
| 2483 | cmd.port = PORT_MII; |
| 2484 | cmd.transceiver = XCVR_INTERNAL; |
| 2485 | cmd.phy_address = mp->phy_addr; |
| 2486 | if (pd->speed == 0) { |
| 2487 | cmd.autoneg = AUTONEG_ENABLE; |
| 2488 | cmd.speed = SPEED_100; |
| 2489 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2490 | ADVERTISED_10baseT_Full | |
| 2491 | ADVERTISED_100baseT_Half | |
| 2492 | ADVERTISED_100baseT_Full; |
| 2493 | if (mp->mii.supports_gmii) |
| 2494 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2495 | } else { |
| 2496 | cmd.autoneg = AUTONEG_DISABLE; |
| 2497 | cmd.speed = pd->speed; |
| 2498 | cmd.duplex = pd->duplex; |
| 2499 | } |
| 2500 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2501 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2502 | |
| 2503 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2504 | } |
| 2505 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2506 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2507 | { |
| 2508 | u32 pscr; |
| 2509 | |
| 2510 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2511 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2512 | pscr &= ~SERIAL_PORT_ENABLE; |
| 2513 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2514 | } |
| 2515 | |
| 2516 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
| 2517 | if (mp->phy_addr == -1) { |
| 2518 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2519 | if (speed == SPEED_1000) |
| 2520 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2521 | else if (speed == SPEED_100) |
| 2522 | pscr |= SET_MII_SPEED_TO_100; |
| 2523 | |
| 2524 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2525 | |
| 2526 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2527 | if (duplex == DUPLEX_FULL) |
| 2528 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2529 | } |
| 2530 | |
| 2531 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2532 | } |
| 2533 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2534 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2535 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2536 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2537 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2538 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2539 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2540 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2541 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2542 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2543 | pd = pdev->dev.platform_data; |
| 2544 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2545 | dev_printk(KERN_ERR, &pdev->dev, |
| 2546 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2547 | return -ENODEV; |
| 2548 | } |
| 2549 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2550 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2551 | dev_printk(KERN_ERR, &pdev->dev, |
| 2552 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2553 | return -ENODEV; |
| 2554 | } |
| 2555 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2556 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | if (!dev) |
| 2558 | return -ENOMEM; |
| 2559 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2561 | platform_set_drvdata(pdev, mp); |
| 2562 | |
| 2563 | mp->shared = platform_get_drvdata(pd->shared); |
| 2564 | mp->port_num = pd->port_number; |
| 2565 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2566 | mp->dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2567 | #ifdef MV643XX_ETH_NAPI |
| 2568 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2569 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2571 | set_params(mp, pd); |
| 2572 | |
| 2573 | spin_lock_init(&mp->lock); |
| 2574 | |
| 2575 | mib_counters_clear(mp); |
| 2576 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2577 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2578 | if (mp->phy_addr != -1) { |
| 2579 | err = phy_init(mp, pd); |
| 2580 | if (err) |
| 2581 | goto out; |
| 2582 | |
| 2583 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2584 | } else { |
| 2585 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); |
| 2586 | } |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2587 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2588 | |
| 2589 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2590 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2591 | BUG_ON(!res); |
| 2592 | dev->irq = res->start; |
| 2593 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2594 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2595 | dev->open = mv643xx_eth_open; |
| 2596 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2597 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2598 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2599 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2600 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2602 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2603 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2604 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2605 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2606 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2607 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2608 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2609 | /* |
| 2610 | * Zero copy can only work if we use Discovery II memory. Else, we will |
| 2611 | * have to map the buffers to ISA memory which is only 16 MB |
| 2612 | */ |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2613 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2614 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | #endif |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2616 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2617 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2618 | |
| 2619 | if (mp->shared->win_protect) |
| 2620 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2621 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | err = register_netdev(dev); |
| 2623 | if (err) |
| 2624 | goto out; |
| 2625 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2626 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2627 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2628 | |
| 2629 | if (dev->features & NETIF_F_SG) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2630 | dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2631 | |
| 2632 | if (dev->features & NETIF_F_IP_CSUM) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2633 | dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2634 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2635 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2636 | dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | #endif |
| 2638 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2639 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2640 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2641 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2642 | return 0; |
| 2643 | |
| 2644 | out: |
| 2645 | free_netdev(dev); |
| 2646 | |
| 2647 | return err; |
| 2648 | } |
| 2649 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2650 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2651 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2652 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2653 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2654 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2655 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2656 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2657 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2658 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2659 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2660 | return 0; |
| 2661 | } |
| 2662 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2663 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2664 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2665 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2666 | |
| 2667 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2668 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2669 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2670 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2671 | if (netif_running(mp->dev)) |
| 2672 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2673 | } |
| 2674 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2675 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2676 | .probe = mv643xx_eth_probe, |
| 2677 | .remove = mv643xx_eth_remove, |
| 2678 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2679 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2680 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2681 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2682 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2683 | }; |
| 2684 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2685 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2686 | { |
| 2687 | int rc; |
| 2688 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2689 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2690 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2691 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2692 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2693 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2694 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2695 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2696 | return rc; |
| 2697 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2698 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2700 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2701 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2702 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2703 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2704 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2705 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2706 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 2707 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 2708 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2709 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2710 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2711 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2712 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |