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 | 3bb8a18a | 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_TX_FAST_REFILL |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 61 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 62 | /* |
| 63 | * Registers shared between all ports. |
| 64 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 65 | #define PHY_ADDR 0x0000 |
| 66 | #define SMI_REG 0x0004 |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 67 | #define SMI_BUSY 0x10000000 |
| 68 | #define SMI_READ_VALID 0x08000000 |
| 69 | #define SMI_OPCODE_READ 0x04000000 |
| 70 | #define SMI_OPCODE_WRITE 0x00000000 |
| 71 | #define ERR_INT_CAUSE 0x0080 |
| 72 | #define ERR_INT_SMI_DONE 0x00000010 |
| 73 | #define ERR_INT_MASK 0x0084 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 74 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 75 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 76 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 77 | #define WINDOW_BAR_ENABLE 0x0290 |
| 78 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 79 | |
| 80 | /* |
| 81 | * Per-port registers. |
| 82 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 83 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 84 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 85 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
| 86 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) |
| 87 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) |
| 88 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) |
| 89 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) |
| 90 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 91 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 92 | #define TX_IN_PROGRESS 0x00000080 |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 93 | #define PORT_SPEED_MASK 0x00000030 |
| 94 | #define PORT_SPEED_1000 0x00000010 |
| 95 | #define PORT_SPEED_100 0x00000020 |
| 96 | #define PORT_SPEED_10 0x00000000 |
| 97 | #define FLOW_CONTROL_ENABLED 0x00000008 |
| 98 | #define FULL_DUPLEX 0x00000004 |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 99 | #define LINK_UP 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 100 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 101 | #define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) |
| 102 | #define TX_BW_RATE(p) (0x0450 + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 103 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 104 | #define TX_BW_BURST(p) (0x045c + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 105 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 106 | #define INT_TX_END_0 0x00080000 |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 107 | #define INT_TX_END 0x07f80000 |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame^] | 108 | #define INT_RX 0x000003fc |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 109 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 110 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame^] | 111 | #define INT_EXT_LINK_PHY 0x00110000 |
| 112 | #define INT_EXT_TX 0x000000ff |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 113 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 114 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 115 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 116 | #define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) |
| 117 | #define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) |
| 118 | #define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) |
| 119 | #define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 120 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 121 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 122 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
| 123 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) |
| 124 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) |
| 125 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 126 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 127 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 128 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 129 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 130 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 131 | |
| 132 | /* |
| 133 | * SDMA configuration register. |
| 134 | */ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 135 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 136 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 137 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 138 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 139 | |
| 140 | #if defined(__BIG_ENDIAN) |
| 141 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 142 | RX_BURST_SIZE_16_64BIT | \ |
| 143 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 144 | #elif defined(__LITTLE_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 | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 147 | BLM_RX_NO_SWAP | \ |
| 148 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 149 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 150 | #else |
| 151 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 152 | #endif |
| 153 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 154 | |
| 155 | /* |
| 156 | * Port serial control register. |
| 157 | */ |
| 158 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 159 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 160 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 161 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 162 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 163 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 164 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 165 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 166 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 167 | #define FORCE_LINK_PASS (1 << 1) |
| 168 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 169 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 170 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 171 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 172 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 173 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 174 | /* |
| 175 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 176 | */ |
| 177 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 178 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 179 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 180 | u16 buf_size; /* Buffer size */ |
| 181 | u32 cmd_sts; /* Descriptor command status */ |
| 182 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 183 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 184 | }; |
| 185 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 186 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 187 | u16 byte_cnt; /* buffer byte count */ |
| 188 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 189 | u32 cmd_sts; /* Command/status field */ |
| 190 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 191 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 192 | }; |
| 193 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 194 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 195 | u32 cmd_sts; /* Descriptor command status */ |
| 196 | u16 buf_size; /* Buffer size */ |
| 197 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 198 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 199 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 200 | }; |
| 201 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 202 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 203 | u32 cmd_sts; /* Command/status field */ |
| 204 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 205 | u16 byte_cnt; /* buffer byte count */ |
| 206 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 207 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 208 | }; |
| 209 | #else |
| 210 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 211 | #endif |
| 212 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 213 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 214 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 215 | |
| 216 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 217 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 218 | |
| 219 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 220 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 221 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 222 | #define RX_FIRST_DESC 0x08000000 |
| 223 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 224 | |
| 225 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 226 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 227 | #define GEN_CRC 0x00400000 |
| 228 | #define TX_FIRST_DESC 0x00200000 |
| 229 | #define TX_LAST_DESC 0x00100000 |
| 230 | #define ZERO_PADDING 0x00080000 |
| 231 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 232 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 233 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 234 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
| 235 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 236 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 237 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 238 | |
| 239 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 240 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 241 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 242 | /* |
| 243 | * Ethernet controller base address. |
| 244 | */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 245 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 246 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 247 | /* |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 248 | * Points at the right SMI instance to use. |
| 249 | */ |
| 250 | struct mv643xx_eth_shared_private *smi; |
| 251 | |
| 252 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 253 | * Protects access to SMI_REG, which is shared between ports. |
| 254 | */ |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 255 | struct mutex phy_lock; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 256 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 257 | /* |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 258 | * If we have access to the error interrupt pin (which is |
| 259 | * somewhat misnamed as it not only reflects internal errors |
| 260 | * but also reflects SMI completion), use that to wait for |
| 261 | * SMI access completion instead of polling the SMI busy bit. |
| 262 | */ |
| 263 | int err_interrupt; |
| 264 | wait_queue_head_t smi_busy_wait; |
| 265 | |
| 266 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 267 | * Per-port MBUS window access register value. |
| 268 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 269 | u32 win_protect; |
| 270 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 271 | /* |
| 272 | * Hardware-specific parameters. |
| 273 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 274 | unsigned int t_clk; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 275 | int extended_rx_coal_limit; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 276 | int tx_bw_control_moved; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 277 | }; |
| 278 | |
| 279 | |
| 280 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 281 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 282 | u64 good_octets_received; |
| 283 | u32 bad_octets_received; |
| 284 | u32 internal_mac_transmit_err; |
| 285 | u32 good_frames_received; |
| 286 | u32 bad_frames_received; |
| 287 | u32 broadcast_frames_received; |
| 288 | u32 multicast_frames_received; |
| 289 | u32 frames_64_octets; |
| 290 | u32 frames_65_to_127_octets; |
| 291 | u32 frames_128_to_255_octets; |
| 292 | u32 frames_256_to_511_octets; |
| 293 | u32 frames_512_to_1023_octets; |
| 294 | u32 frames_1024_to_max_octets; |
| 295 | u64 good_octets_sent; |
| 296 | u32 good_frames_sent; |
| 297 | u32 excessive_collision; |
| 298 | u32 multicast_frames_sent; |
| 299 | u32 broadcast_frames_sent; |
| 300 | u32 unrec_mac_control_received; |
| 301 | u32 fc_sent; |
| 302 | u32 good_fc_received; |
| 303 | u32 bad_fc_received; |
| 304 | u32 undersize_received; |
| 305 | u32 fragments_received; |
| 306 | u32 oversize_received; |
| 307 | u32 jabber_received; |
| 308 | u32 mac_receive_error; |
| 309 | u32 bad_crc_event; |
| 310 | u32 collision; |
| 311 | u32 late_collision; |
| 312 | }; |
| 313 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 314 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 315 | int index; |
| 316 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 317 | int rx_ring_size; |
| 318 | |
| 319 | int rx_desc_count; |
| 320 | int rx_curr_desc; |
| 321 | int rx_used_desc; |
| 322 | |
| 323 | struct rx_desc *rx_desc_area; |
| 324 | dma_addr_t rx_desc_dma; |
| 325 | int rx_desc_area_size; |
| 326 | struct sk_buff **rx_skb; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 327 | }; |
| 328 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 329 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 330 | int index; |
| 331 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 332 | int tx_ring_size; |
| 333 | |
| 334 | int tx_desc_count; |
| 335 | int tx_curr_desc; |
| 336 | int tx_used_desc; |
| 337 | |
| 338 | struct tx_desc *tx_desc_area; |
| 339 | dma_addr_t tx_desc_dma; |
| 340 | int tx_desc_area_size; |
| 341 | struct sk_buff **tx_skb; |
| 342 | }; |
| 343 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 344 | struct mv643xx_eth_private { |
| 345 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 346 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 347 | |
| 348 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 349 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 350 | int phy_addr; |
| 351 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 352 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 353 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 354 | struct mib_counters mib_counters; |
| 355 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 356 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 357 | |
| 358 | /* |
| 359 | * RX state. |
| 360 | */ |
| 361 | int default_rx_ring_size; |
| 362 | unsigned long rx_desc_sram_addr; |
| 363 | int rx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 364 | int rxq_count; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 365 | struct napi_struct napi; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 366 | struct timer_list rx_oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 367 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 368 | |
| 369 | /* |
| 370 | * TX state. |
| 371 | */ |
| 372 | int default_tx_ring_size; |
| 373 | unsigned long tx_desc_sram_addr; |
| 374 | int tx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 375 | int txq_count; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 376 | struct tx_queue txq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 377 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 378 | int tx_clean_threshold; |
| 379 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 380 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 382 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 383 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 384 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 386 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | } |
| 388 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 389 | 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] | 390 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 391 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | } |
| 393 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 394 | |
| 395 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 396 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 398 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 399 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 401 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 402 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 403 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 404 | } |
| 405 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 406 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 407 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 408 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 409 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 410 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 411 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 412 | static void rxq_disable(struct rx_queue *rxq) |
| 413 | { |
| 414 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 415 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 416 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 417 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 418 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 419 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 420 | } |
| 421 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 422 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 423 | { |
| 424 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 425 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index); |
| 426 | u32 addr; |
| 427 | |
| 428 | addr = (u32)txq->tx_desc_dma; |
| 429 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 430 | wrl(mp, off, addr); |
| 431 | } |
| 432 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 433 | static void txq_enable(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 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 437 | } |
| 438 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 439 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 440 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 441 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 442 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 443 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 444 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 445 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 446 | udelay(10); |
| 447 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 448 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 449 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 450 | { |
| 451 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 452 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 453 | /* |
| 454 | * netif_{stop,wake}_queue() flow control only applies to |
| 455 | * the primary queue. |
| 456 | */ |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 457 | BUG_ON(txq->index != 0); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 458 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame] | 459 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 460 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | |
| 464 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 465 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 466 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 467 | static int rxq_refill(struct rx_queue *rxq, int budget, int *oom) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 468 | { |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 469 | int skb_size; |
| 470 | int refilled; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 471 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 472 | /* |
| 473 | * Reserve 2+14 bytes for an ethernet header (the hardware |
| 474 | * automatically prepends 2 bytes of dummy data to each |
| 475 | * received packet), 16 bytes for up to four VLAN tags, and |
| 476 | * 4 bytes for the trailing FCS -- 36 bytes total. |
| 477 | */ |
| 478 | skb_size = rxq_to_mp(rxq)->dev->mtu + 36; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 479 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 480 | /* |
| 481 | * Make sure that the skb size is a multiple of 8 bytes, as |
| 482 | * the lower three bits of the receive descriptor's buffer |
| 483 | * size field are ignored by the hardware. |
| 484 | */ |
| 485 | skb_size = (skb_size + 7) & ~7; |
| 486 | |
| 487 | refilled = 0; |
| 488 | while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 489 | struct sk_buff *skb; |
| 490 | int unaligned; |
| 491 | int rx; |
| 492 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 493 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 494 | if (skb == NULL) { |
| 495 | *oom = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | break; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 497 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 498 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 499 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 500 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 501 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 502 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 503 | refilled++; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 504 | rxq->rx_desc_count++; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 505 | |
| 506 | rx = rxq->rx_used_desc++; |
| 507 | if (rxq->rx_used_desc == rxq->rx_ring_size) |
| 508 | rxq->rx_used_desc = 0; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 509 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 510 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 511 | skb_size, DMA_FROM_DEVICE); |
| 512 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 513 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 514 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 515 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 516 | RX_ENABLE_INTERRUPT; |
| 517 | wmb(); |
| 518 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 519 | /* |
| 520 | * The hardware automatically prepends 2 bytes of |
| 521 | * dummy data to each received packet, so that the |
| 522 | * IP header ends up 16-byte aligned. |
| 523 | */ |
| 524 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 526 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 527 | return refilled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | } |
| 529 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 530 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 532 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 533 | struct net_device_stats *stats = &mp->dev->stats; |
| 534 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 536 | rx = 0; |
Lennert Buytenhek | 9e1f377 | 2008-08-24 02:33:47 +0200 | [diff] [blame] | 537 | while (rx < budget && rxq->rx_desc_count) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 538 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 539 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 540 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 541 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 542 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 543 | |
| 544 | cmd_sts = rx_desc->cmd_sts; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 545 | if (cmd_sts & BUFFER_OWNED_BY_DMA) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 546 | break; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 547 | rmb(); |
| 548 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 549 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 550 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 551 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 552 | rxq->rx_curr_desc++; |
| 553 | if (rxq->rx_curr_desc == rxq->rx_ring_size) |
| 554 | rxq->rx_curr_desc = 0; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 555 | |
Lennert Buytenhek | 3a49948 | 2008-08-24 07:19:48 +0200 | [diff] [blame] | 556 | dma_unmap_single(NULL, rx_desc->buf_ptr, |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 557 | rx_desc->buf_size, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 558 | rxq->rx_desc_count--; |
| 559 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 560 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 561 | /* |
| 562 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 563 | * |
| 564 | * Note that the descriptor byte count includes 2 dummy |
| 565 | * bytes automatically inserted by the hardware at the |
| 566 | * start of the packet (which we don't count), and a 4 |
| 567 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 568 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 570 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 571 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 573 | * In case we received a packet without first / last bits |
| 574 | * on, or the error summary bit is set, the packet needs |
| 575 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 577 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 578 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 579 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 581 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 582 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 583 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 585 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 586 | "received packet spanning " |
| 587 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 589 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 590 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | stats->rx_errors++; |
| 592 | |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 593 | dev_kfree_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | } else { |
| 595 | /* |
| 596 | * The -4 is for the CRC in the trailer of the |
| 597 | * received packet |
| 598 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 599 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 601 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 603 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 604 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 606 | skb->protocol = eth_type_trans(skb, mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | netif_receive_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 609 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 610 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 612 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 613 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | } |
| 615 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 616 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 618 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 619 | int work_done; |
| 620 | int oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 621 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 622 | |
| 623 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 625 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | if (++mp->tx_clean_threshold > 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | mp->tx_clean_threshold = 0; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 628 | for (i = 0; i < mp->txq_count; i++) |
| 629 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 630 | |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 631 | spin_lock_irq(&mp->lock); |
| 632 | __txq_maybe_wake(mp->txq); |
| 633 | spin_unlock_irq(&mp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | } |
| 635 | #endif |
| 636 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 637 | work_done = 0; |
| 638 | oom = 0; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 639 | for (i = mp->rxq_count - 1; work_done < budget && i >= 0; i--) { |
| 640 | struct rx_queue *rxq = mp->rxq + i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 642 | work_done += rxq_process(rxq, budget - work_done); |
| 643 | work_done += rxq_refill(rxq, budget - work_done, &oom); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | if (work_done < budget) { |
| 647 | if (oom) |
| 648 | mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 649 | netif_rx_complete(mp->dev, napi); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 650 | 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] | 651 | } |
| 652 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 653 | return work_done; |
| 654 | } |
| 655 | |
| 656 | static inline void oom_timer_wrapper(unsigned long data) |
| 657 | { |
| 658 | struct mv643xx_eth_private *mp = (void *)data; |
| 659 | |
| 660 | napi_schedule(&mp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 663 | |
| 664 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 665 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 666 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 667 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 668 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 669 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 670 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 671 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 672 | return 1; |
| 673 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 674 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 675 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 676 | } |
| 677 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 678 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 679 | { |
| 680 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 681 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 682 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 683 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 684 | tx_desc_curr = txq->tx_curr_desc++; |
| 685 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 686 | txq->tx_curr_desc = 0; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 687 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 688 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 689 | |
| 690 | return tx_desc_curr; |
| 691 | } |
| 692 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 693 | 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] | 694 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 695 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 696 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 697 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 698 | for (frag = 0; frag < nr_frags; frag++) { |
| 699 | skb_frag_t *this_frag; |
| 700 | int tx_index; |
| 701 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 702 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 703 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 704 | tx_index = txq_alloc_desc_index(txq); |
| 705 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 706 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 707 | /* |
| 708 | * The last fragment will generate an interrupt |
| 709 | * which will free the skb on TX completion. |
| 710 | */ |
| 711 | if (frag == nr_frags - 1) { |
| 712 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 713 | ZERO_PADDING | TX_LAST_DESC | |
| 714 | TX_ENABLE_INTERRUPT; |
| 715 | txq->tx_skb[tx_index] = skb; |
| 716 | } else { |
| 717 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 718 | txq->tx_skb[tx_index] = NULL; |
| 719 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 720 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 721 | desc->l4i_chk = 0; |
| 722 | desc->byte_cnt = this_frag->size; |
| 723 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 724 | this_frag->page_offset, |
| 725 | this_frag->size, |
| 726 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 727 | } |
| 728 | } |
| 729 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 730 | static inline __be16 sum16_as_be(__sum16 sum) |
| 731 | { |
| 732 | return (__force __be16)sum; |
| 733 | } |
| 734 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 735 | 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] | 736 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 737 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 738 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 739 | int tx_index; |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 740 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 741 | u32 cmd_sts; |
| 742 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 743 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 744 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 745 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 746 | tx_index = txq_alloc_desc_index(txq); |
| 747 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 748 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 749 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 750 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 751 | |
| 752 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 753 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 754 | } else { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 755 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 756 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 757 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | desc->byte_cnt = length; |
| 761 | 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] | 762 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 763 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 764 | int mac_hdr_len; |
| 765 | |
| 766 | BUG_ON(skb->protocol != htons(ETH_P_IP) && |
| 767 | skb->protocol != htons(ETH_P_8021Q)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 768 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 769 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 770 | GEN_IP_V4_CHECKSUM | |
| 771 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 772 | |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 773 | mac_hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; |
| 774 | switch (mac_hdr_len - ETH_HLEN) { |
| 775 | case 0: |
| 776 | break; |
| 777 | case 4: |
| 778 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 779 | break; |
| 780 | case 8: |
| 781 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 782 | break; |
| 783 | case 12: |
| 784 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 785 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 786 | break; |
| 787 | default: |
| 788 | if (net_ratelimit()) |
| 789 | dev_printk(KERN_ERR, &txq_to_mp(txq)->dev->dev, |
| 790 | "mac header length is %d?!\n", mac_hdr_len); |
| 791 | break; |
| 792 | } |
| 793 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 794 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 795 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 796 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 797 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 798 | break; |
| 799 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 800 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 801 | break; |
| 802 | default: |
| 803 | BUG(); |
| 804 | } |
| 805 | } else { |
| 806 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 807 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 808 | desc->l4i_chk = 0; |
| 809 | } |
| 810 | |
| 811 | /* ensure all other descriptors are written before first cmd_sts */ |
| 812 | wmb(); |
| 813 | desc->cmd_sts = cmd_sts; |
| 814 | |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 815 | /* clear TX_END interrupt status */ |
| 816 | wrl(mp, INT_CAUSE(mp->port_num), ~(INT_TX_END_0 << txq->index)); |
| 817 | rdl(mp, INT_CAUSE(mp->port_num)); |
| 818 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 819 | /* ensure all descriptors are written before poking hardware */ |
| 820 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 821 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 822 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 823 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 824 | } |
| 825 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 826 | 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] | 827 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 828 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 829 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 830 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 833 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 834 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 835 | dev_printk(KERN_DEBUG, &dev->dev, |
| 836 | "failed to linearize skb with tiny " |
| 837 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 838 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 839 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | spin_lock_irqsave(&mp->lock, flags); |
| 842 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 843 | txq = mp->txq; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 844 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame] | 845 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 846 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 847 | if (txq->index == 0 && net_ratelimit()) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 848 | dev_printk(KERN_ERR, &dev->dev, |
| 849 | "primary tx queue full?!\n"); |
| 850 | kfree_skb(skb); |
| 851 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 852 | } |
| 853 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 854 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 855 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | stats->tx_packets++; |
| 857 | dev->trans_start = jiffies; |
| 858 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 859 | if (txq->index == 0) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 860 | int entries_left; |
| 861 | |
| 862 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame] | 863 | if (entries_left < MAX_SKB_FRAGS + 1) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 864 | netif_stop_queue(dev); |
| 865 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | spin_unlock_irqrestore(&mp->lock, flags); |
| 868 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 869 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | } |
| 871 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 872 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 873 | /* tx rate control **********************************************************/ |
| 874 | /* |
| 875 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 876 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 877 | */ |
| 878 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 879 | { |
| 880 | int token_rate; |
| 881 | int mtu; |
| 882 | int bucket_size; |
| 883 | |
| 884 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 885 | if (token_rate > 1023) |
| 886 | token_rate = 1023; |
| 887 | |
| 888 | mtu = (mp->dev->mtu + 255) >> 8; |
| 889 | if (mtu > 63) |
| 890 | mtu = 63; |
| 891 | |
| 892 | bucket_size = (burst + 255) >> 8; |
| 893 | if (bucket_size > 65535) |
| 894 | bucket_size = 65535; |
| 895 | |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 896 | if (mp->shared->tx_bw_control_moved) { |
| 897 | wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); |
| 898 | wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); |
| 899 | wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); |
| 900 | } else { |
| 901 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 902 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 903 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 904 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 908 | { |
| 909 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 910 | int token_rate; |
| 911 | int bucket_size; |
| 912 | |
| 913 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 914 | if (token_rate > 1023) |
| 915 | token_rate = 1023; |
| 916 | |
| 917 | bucket_size = (burst + 255) >> 8; |
| 918 | if (bucket_size > 65535) |
| 919 | bucket_size = 65535; |
| 920 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 921 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
| 922 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 923 | (bucket_size << 10) | token_rate); |
| 924 | } |
| 925 | |
| 926 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 927 | { |
| 928 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 929 | int off; |
| 930 | u32 val; |
| 931 | |
| 932 | /* |
| 933 | * Turn on fixed priority mode. |
| 934 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 935 | if (mp->shared->tx_bw_control_moved) |
| 936 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 937 | else |
| 938 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 939 | |
| 940 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 941 | val |= 1 << txq->index; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 942 | wrl(mp, off, val); |
| 943 | } |
| 944 | |
| 945 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 946 | { |
| 947 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 948 | int off; |
| 949 | u32 val; |
| 950 | |
| 951 | /* |
| 952 | * Turn off fixed priority mode. |
| 953 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 954 | if (mp->shared->tx_bw_control_moved) |
| 955 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 956 | else |
| 957 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 958 | |
| 959 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 960 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 961 | wrl(mp, off, val); |
| 962 | |
| 963 | /* |
| 964 | * Configure WRR weight for this queue. |
| 965 | */ |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 966 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 967 | |
| 968 | val = rdl(mp, off); |
| 969 | val = (val & ~0xff) | (weight & 0xff); |
| 970 | wrl(mp, off, val); |
| 971 | } |
| 972 | |
| 973 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 974 | /* mii management interface *************************************************/ |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 975 | static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 976 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 977 | struct mv643xx_eth_shared_private *msp = dev_id; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 978 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 979 | if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) { |
| 980 | writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE); |
| 981 | wake_up(&msp->smi_busy_wait); |
| 982 | return IRQ_HANDLED; |
| 983 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 984 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 985 | return IRQ_NONE; |
| 986 | } |
| 987 | |
| 988 | static int smi_is_done(struct mv643xx_eth_shared_private *msp) |
| 989 | { |
| 990 | return !(readl(msp->base + SMI_REG) & SMI_BUSY); |
| 991 | } |
| 992 | |
| 993 | static int smi_wait_ready(struct mv643xx_eth_shared_private *msp) |
| 994 | { |
| 995 | if (msp->err_interrupt == NO_IRQ) { |
| 996 | int i; |
| 997 | |
| 998 | for (i = 0; !smi_is_done(msp); i++) { |
| 999 | if (i == 10) |
| 1000 | return -ETIMEDOUT; |
| 1001 | msleep(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1002 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1003 | |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | if (!wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp), |
| 1008 | msecs_to_jiffies(100))) |
| 1009 | return -ETIMEDOUT; |
| 1010 | |
| 1011 | return 0; |
| 1012 | } |
| 1013 | |
| 1014 | static int smi_reg_read(struct mv643xx_eth_private *mp, |
| 1015 | unsigned int addr, unsigned int reg) |
| 1016 | { |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 1017 | struct mv643xx_eth_shared_private *msp = mp->shared->smi; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1018 | void __iomem *smi_reg = msp->base + SMI_REG; |
| 1019 | int ret; |
| 1020 | |
| 1021 | mutex_lock(&msp->phy_lock); |
| 1022 | |
| 1023 | if (smi_wait_ready(msp)) { |
| 1024 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1025 | ret = -ETIMEDOUT; |
| 1026 | goto out; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1027 | } |
| 1028 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1029 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1030 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1031 | if (smi_wait_ready(msp)) { |
| 1032 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1033 | ret = -ETIMEDOUT; |
| 1034 | goto out; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1035 | } |
| 1036 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1037 | ret = readl(smi_reg); |
| 1038 | if (!(ret & SMI_READ_VALID)) { |
| 1039 | printk("%s: SMI bus read not valid\n", mp->dev->name); |
| 1040 | ret = -ENODEV; |
| 1041 | goto out; |
| 1042 | } |
| 1043 | |
| 1044 | ret &= 0xffff; |
| 1045 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1046 | out: |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1047 | mutex_unlock(&msp->phy_lock); |
| 1048 | |
| 1049 | return ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1050 | } |
| 1051 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1052 | static int smi_reg_write(struct mv643xx_eth_private *mp, unsigned int addr, |
| 1053 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1054 | { |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 1055 | struct mv643xx_eth_shared_private *msp = mp->shared->smi; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1056 | void __iomem *smi_reg = msp->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1057 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1058 | mutex_lock(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1059 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1060 | if (smi_wait_ready(msp)) { |
| 1061 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1062 | mutex_unlock(&msp->phy_lock); |
| 1063 | return -ETIMEDOUT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1064 | } |
| 1065 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1066 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 1067 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1068 | |
| 1069 | mutex_unlock(&msp->phy_lock); |
| 1070 | |
| 1071 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1072 | } |
| 1073 | |
| 1074 | |
| 1075 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1076 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1077 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1078 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1079 | } |
| 1080 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1081 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1082 | { |
| 1083 | int i; |
| 1084 | |
| 1085 | for (i = 0; i < 0x80; i += 4) |
| 1086 | mib_read(mp, i); |
| 1087 | } |
| 1088 | |
| 1089 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1090 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1091 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1092 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1093 | p->good_octets_received += mib_read(mp, 0x00); |
| 1094 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 1095 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1096 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1097 | p->good_frames_received += mib_read(mp, 0x10); |
| 1098 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1099 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1100 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1101 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1102 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1103 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1104 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1105 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1106 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1107 | p->good_octets_sent += mib_read(mp, 0x38); |
| 1108 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1109 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1110 | p->excessive_collision += mib_read(mp, 0x44); |
| 1111 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1112 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1113 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1114 | p->fc_sent += mib_read(mp, 0x54); |
| 1115 | p->good_fc_received += mib_read(mp, 0x58); |
| 1116 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1117 | p->undersize_received += mib_read(mp, 0x60); |
| 1118 | p->fragments_received += mib_read(mp, 0x64); |
| 1119 | p->oversize_received += mib_read(mp, 0x68); |
| 1120 | p->jabber_received += mib_read(mp, 0x6c); |
| 1121 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1122 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1123 | p->collision += mib_read(mp, 0x78); |
| 1124 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1125 | } |
| 1126 | |
| 1127 | |
| 1128 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1129 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1130 | char stat_string[ETH_GSTRING_LEN]; |
| 1131 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1132 | int netdev_off; |
| 1133 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1134 | }; |
| 1135 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1136 | #define SSTAT(m) \ |
| 1137 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1138 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1139 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1140 | #define MIBSTAT(m) \ |
| 1141 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1142 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1143 | |
| 1144 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1145 | SSTAT(rx_packets), |
| 1146 | SSTAT(tx_packets), |
| 1147 | SSTAT(rx_bytes), |
| 1148 | SSTAT(tx_bytes), |
| 1149 | SSTAT(rx_errors), |
| 1150 | SSTAT(tx_errors), |
| 1151 | SSTAT(rx_dropped), |
| 1152 | SSTAT(tx_dropped), |
| 1153 | MIBSTAT(good_octets_received), |
| 1154 | MIBSTAT(bad_octets_received), |
| 1155 | MIBSTAT(internal_mac_transmit_err), |
| 1156 | MIBSTAT(good_frames_received), |
| 1157 | MIBSTAT(bad_frames_received), |
| 1158 | MIBSTAT(broadcast_frames_received), |
| 1159 | MIBSTAT(multicast_frames_received), |
| 1160 | MIBSTAT(frames_64_octets), |
| 1161 | MIBSTAT(frames_65_to_127_octets), |
| 1162 | MIBSTAT(frames_128_to_255_octets), |
| 1163 | MIBSTAT(frames_256_to_511_octets), |
| 1164 | MIBSTAT(frames_512_to_1023_octets), |
| 1165 | MIBSTAT(frames_1024_to_max_octets), |
| 1166 | MIBSTAT(good_octets_sent), |
| 1167 | MIBSTAT(good_frames_sent), |
| 1168 | MIBSTAT(excessive_collision), |
| 1169 | MIBSTAT(multicast_frames_sent), |
| 1170 | MIBSTAT(broadcast_frames_sent), |
| 1171 | MIBSTAT(unrec_mac_control_received), |
| 1172 | MIBSTAT(fc_sent), |
| 1173 | MIBSTAT(good_fc_received), |
| 1174 | MIBSTAT(bad_fc_received), |
| 1175 | MIBSTAT(undersize_received), |
| 1176 | MIBSTAT(fragments_received), |
| 1177 | MIBSTAT(oversize_received), |
| 1178 | MIBSTAT(jabber_received), |
| 1179 | MIBSTAT(mac_receive_error), |
| 1180 | MIBSTAT(bad_crc_event), |
| 1181 | MIBSTAT(collision), |
| 1182 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1183 | }; |
| 1184 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1185 | 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] | 1186 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1187 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1188 | int err; |
| 1189 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1190 | err = mii_ethtool_gset(&mp->mii, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1191 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1192 | /* |
| 1193 | * The MAC does not support 1000baseT_Half. |
| 1194 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1195 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1196 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1197 | |
| 1198 | return err; |
| 1199 | } |
| 1200 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1201 | static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1202 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1203 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1204 | u32 port_status; |
| 1205 | |
| 1206 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1207 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1208 | cmd->supported = SUPPORTED_MII; |
| 1209 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1210 | switch (port_status & PORT_SPEED_MASK) { |
| 1211 | case PORT_SPEED_10: |
| 1212 | cmd->speed = SPEED_10; |
| 1213 | break; |
| 1214 | case PORT_SPEED_100: |
| 1215 | cmd->speed = SPEED_100; |
| 1216 | break; |
| 1217 | case PORT_SPEED_1000: |
| 1218 | cmd->speed = SPEED_1000; |
| 1219 | break; |
| 1220 | default: |
| 1221 | cmd->speed = -1; |
| 1222 | break; |
| 1223 | } |
| 1224 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1225 | cmd->port = PORT_MII; |
| 1226 | cmd->phy_address = 0; |
| 1227 | cmd->transceiver = XCVR_INTERNAL; |
| 1228 | cmd->autoneg = AUTONEG_DISABLE; |
| 1229 | cmd->maxtxpkt = 1; |
| 1230 | cmd->maxrxpkt = 1; |
| 1231 | |
| 1232 | return 0; |
| 1233 | } |
| 1234 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1235 | 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] | 1236 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1237 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1238 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1239 | /* |
| 1240 | * The MAC does not support 1000baseT_Half. |
| 1241 | */ |
| 1242 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1243 | |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 1244 | return mii_ethtool_sset(&mp->mii, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1245 | } |
| 1246 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1247 | static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1248 | { |
| 1249 | return -EINVAL; |
| 1250 | } |
| 1251 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1252 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1253 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1254 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1255 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1256 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1257 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1258 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1259 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1260 | } |
| 1261 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1262 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1263 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1264 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1265 | |
| 1266 | return mii_nway_restart(&mp->mii); |
| 1267 | } |
| 1268 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1269 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
| 1270 | { |
| 1271 | return -EINVAL; |
| 1272 | } |
| 1273 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1274 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1275 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1276 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1277 | |
| 1278 | return mii_link_ok(&mp->mii); |
| 1279 | } |
| 1280 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1281 | static u32 mv643xx_eth_get_link_phyless(struct net_device *dev) |
| 1282 | { |
| 1283 | return 1; |
| 1284 | } |
| 1285 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1286 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1287 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1288 | { |
| 1289 | int i; |
| 1290 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1291 | if (stringset == ETH_SS_STATS) { |
| 1292 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1293 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1294 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1295 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1296 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1297 | } |
| 1298 | } |
| 1299 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1300 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1301 | struct ethtool_stats *stats, |
| 1302 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1303 | { |
Lennert Buytenhek | b987384 | 2008-08-24 05:59:16 +0200 | [diff] [blame] | 1304 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1305 | int i; |
| 1306 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1307 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1308 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1309 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1310 | const struct mv643xx_eth_stats *stat; |
| 1311 | void *p; |
| 1312 | |
| 1313 | stat = mv643xx_eth_stats + i; |
| 1314 | |
| 1315 | if (stat->netdev_off >= 0) |
| 1316 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1317 | else |
| 1318 | p = ((void *)mp) + stat->mp_off; |
| 1319 | |
| 1320 | data[i] = (stat->sizeof_stat == 8) ? |
| 1321 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1322 | } |
| 1323 | } |
| 1324 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1325 | 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] | 1326 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1327 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1328 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1329 | |
| 1330 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1331 | } |
| 1332 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1333 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1334 | .get_settings = mv643xx_eth_get_settings, |
| 1335 | .set_settings = mv643xx_eth_set_settings, |
| 1336 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1337 | .nway_reset = mv643xx_eth_nway_reset, |
| 1338 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1339 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1340 | .get_strings = mv643xx_eth_get_strings, |
| 1341 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1342 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1343 | }; |
| 1344 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1345 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
| 1346 | .get_settings = mv643xx_eth_get_settings_phyless, |
| 1347 | .set_settings = mv643xx_eth_set_settings_phyless, |
| 1348 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1349 | .nway_reset = mv643xx_eth_nway_reset_phyless, |
| 1350 | .get_link = mv643xx_eth_get_link_phyless, |
| 1351 | .set_sg = ethtool_op_set_sg, |
| 1352 | .get_strings = mv643xx_eth_get_strings, |
| 1353 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1354 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1355 | }; |
| 1356 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1357 | |
| 1358 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1359 | 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] | 1360 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1361 | unsigned int mac_h; |
| 1362 | unsigned int mac_l; |
| 1363 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1364 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1365 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1366 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1367 | addr[0] = (mac_h >> 24) & 0xff; |
| 1368 | addr[1] = (mac_h >> 16) & 0xff; |
| 1369 | addr[2] = (mac_h >> 8) & 0xff; |
| 1370 | addr[3] = mac_h & 0xff; |
| 1371 | addr[4] = (mac_l >> 8) & 0xff; |
| 1372 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1373 | } |
| 1374 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1375 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1376 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1377 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1378 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1379 | for (i = 0; i < 0x100; i += 4) { |
| 1380 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1381 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1382 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1383 | |
| 1384 | for (i = 0; i < 0x10; i += 4) |
| 1385 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1386 | } |
| 1387 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1388 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1389 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1390 | { |
| 1391 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1392 | |
| 1393 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1394 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1395 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1396 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1397 | } |
| 1398 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1399 | 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] | 1400 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1401 | unsigned int mac_h; |
| 1402 | unsigned int mac_l; |
| 1403 | int table; |
| 1404 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1405 | mac_l = (addr[4] << 8) | addr[5]; |
| 1406 | 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] | 1407 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1408 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1409 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1410 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1411 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1412 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1413 | } |
| 1414 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1415 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1416 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1417 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1418 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1419 | /* +2 is for the offset of the HW addr type */ |
| 1420 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1421 | |
| 1422 | init_mac_tables(mp); |
| 1423 | uc_addr_set(mp, dev->dev_addr); |
| 1424 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1425 | return 0; |
| 1426 | } |
| 1427 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1428 | static int addr_crc(unsigned char *addr) |
| 1429 | { |
| 1430 | int crc = 0; |
| 1431 | int i; |
| 1432 | |
| 1433 | for (i = 0; i < 6; i++) { |
| 1434 | int j; |
| 1435 | |
| 1436 | crc = (crc ^ addr[i]) << 8; |
| 1437 | for (j = 7; j >= 0; j--) { |
| 1438 | if (crc & (0x100 << j)) |
| 1439 | crc ^= 0x107 << j; |
| 1440 | } |
| 1441 | } |
| 1442 | |
| 1443 | return crc; |
| 1444 | } |
| 1445 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1446 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1447 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1448 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1449 | u32 port_config; |
| 1450 | struct dev_addr_list *addr; |
| 1451 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1452 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1453 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1454 | if (dev->flags & IFF_PROMISC) |
| 1455 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1456 | else |
| 1457 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1458 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1459 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1460 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1461 | int port_num = mp->port_num; |
| 1462 | u32 accept = 0x01010101; |
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 | for (i = 0; i < 0x100; i += 4) { |
| 1465 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1466 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1467 | } |
| 1468 | return; |
| 1469 | } |
| 1470 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1471 | for (i = 0; i < 0x100; i += 4) { |
| 1472 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1473 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1474 | } |
| 1475 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1476 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1477 | u8 *a = addr->da_addr; |
| 1478 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1479 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1480 | if (addr->da_addrlen != 6) |
| 1481 | continue; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1482 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1483 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1484 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1485 | set_filter_table_entry(mp, table, a[5]); |
| 1486 | } else { |
| 1487 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1488 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1489 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1490 | set_filter_table_entry(mp, table, crc); |
| 1491 | } |
| 1492 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1493 | } |
| 1494 | |
| 1495 | |
| 1496 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1497 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1498 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1499 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1500 | struct rx_desc *rx_desc; |
| 1501 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1502 | int i; |
| 1503 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1504 | rxq->index = index; |
| 1505 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1506 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1507 | |
| 1508 | rxq->rx_desc_count = 0; |
| 1509 | rxq->rx_curr_desc = 0; |
| 1510 | rxq->rx_used_desc = 0; |
| 1511 | |
| 1512 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1513 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1514 | if (index == 0 && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1515 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1516 | mp->rx_desc_sram_size); |
| 1517 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1518 | } else { |
| 1519 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1520 | &rxq->rx_desc_dma, |
| 1521 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1522 | } |
| 1523 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1524 | if (rxq->rx_desc_area == NULL) { |
| 1525 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1526 | "can't allocate rx ring (%d bytes)\n", size); |
| 1527 | goto out; |
| 1528 | } |
| 1529 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1530 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1531 | rxq->rx_desc_area_size = size; |
| 1532 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1533 | GFP_KERNEL); |
| 1534 | if (rxq->rx_skb == NULL) { |
| 1535 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1536 | "can't allocate rx skb ring\n"); |
| 1537 | goto out_free; |
| 1538 | } |
| 1539 | |
| 1540 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1541 | for (i = 0; i < rxq->rx_ring_size; i++) { |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1542 | int nexti; |
| 1543 | |
| 1544 | nexti = i + 1; |
| 1545 | if (nexti == rxq->rx_ring_size) |
| 1546 | nexti = 0; |
| 1547 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1548 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1549 | nexti * sizeof(struct rx_desc); |
| 1550 | } |
| 1551 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1552 | return 0; |
| 1553 | |
| 1554 | |
| 1555 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1556 | if (index == 0 && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1557 | iounmap(rxq->rx_desc_area); |
| 1558 | else |
| 1559 | dma_free_coherent(NULL, size, |
| 1560 | rxq->rx_desc_area, |
| 1561 | rxq->rx_desc_dma); |
| 1562 | |
| 1563 | out: |
| 1564 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1565 | } |
| 1566 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1567 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1568 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1569 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1570 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1571 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1572 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1573 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1574 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1575 | if (rxq->rx_skb[i]) { |
| 1576 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1577 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1578 | } |
| 1579 | } |
| 1580 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1581 | if (rxq->rx_desc_count) { |
| 1582 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1583 | "error freeing rx ring -- %d skbs stuck\n", |
| 1584 | rxq->rx_desc_count); |
| 1585 | } |
| 1586 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1587 | if (rxq->index == 0 && |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1588 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1589 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1590 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1591 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1592 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1593 | |
| 1594 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1595 | } |
| 1596 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1597 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1598 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1599 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1600 | struct tx_desc *tx_desc; |
| 1601 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1602 | int i; |
| 1603 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1604 | txq->index = index; |
| 1605 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1606 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1607 | |
| 1608 | txq->tx_desc_count = 0; |
| 1609 | txq->tx_curr_desc = 0; |
| 1610 | txq->tx_used_desc = 0; |
| 1611 | |
| 1612 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1613 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1614 | if (index == 0 && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1615 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1616 | mp->tx_desc_sram_size); |
| 1617 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1618 | } else { |
| 1619 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1620 | &txq->tx_desc_dma, |
| 1621 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1622 | } |
| 1623 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1624 | if (txq->tx_desc_area == NULL) { |
| 1625 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1626 | "can't allocate tx ring (%d bytes)\n", size); |
| 1627 | goto out; |
| 1628 | } |
| 1629 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1630 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1631 | txq->tx_desc_area_size = size; |
| 1632 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1633 | GFP_KERNEL); |
| 1634 | if (txq->tx_skb == NULL) { |
| 1635 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1636 | "can't allocate tx skb ring\n"); |
| 1637 | goto out_free; |
| 1638 | } |
| 1639 | |
| 1640 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1641 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1642 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1643 | int nexti; |
| 1644 | |
| 1645 | nexti = i + 1; |
| 1646 | if (nexti == txq->tx_ring_size) |
| 1647 | nexti = 0; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1648 | |
| 1649 | txd->cmd_sts = 0; |
| 1650 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1651 | nexti * sizeof(struct tx_desc); |
| 1652 | } |
| 1653 | |
| 1654 | return 0; |
| 1655 | |
| 1656 | |
| 1657 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1658 | if (index == 0 && size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1659 | iounmap(txq->tx_desc_area); |
| 1660 | else |
| 1661 | dma_free_coherent(NULL, size, |
| 1662 | txq->tx_desc_area, |
| 1663 | txq->tx_desc_dma); |
| 1664 | |
| 1665 | out: |
| 1666 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1667 | } |
| 1668 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1669 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1670 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1671 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1672 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1673 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1674 | spin_lock_irqsave(&mp->lock, flags); |
| 1675 | while (txq->tx_desc_count > 0) { |
| 1676 | int tx_index; |
| 1677 | struct tx_desc *desc; |
| 1678 | u32 cmd_sts; |
| 1679 | struct sk_buff *skb; |
| 1680 | dma_addr_t addr; |
| 1681 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1682 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1683 | tx_index = txq->tx_used_desc; |
| 1684 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1685 | cmd_sts = desc->cmd_sts; |
| 1686 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1687 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 1688 | if (!force) |
| 1689 | break; |
| 1690 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 1691 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1692 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1693 | txq->tx_used_desc = tx_index + 1; |
| 1694 | if (txq->tx_used_desc == txq->tx_ring_size) |
| 1695 | txq->tx_used_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1696 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1697 | |
| 1698 | addr = desc->buf_ptr; |
| 1699 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1700 | skb = txq->tx_skb[tx_index]; |
| 1701 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1702 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1703 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1704 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1705 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1706 | } |
| 1707 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1708 | /* |
| 1709 | * Drop mp->lock while we free the skb. |
| 1710 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1711 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1712 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1713 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1714 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1715 | else |
| 1716 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1717 | |
| 1718 | if (skb) |
| 1719 | dev_kfree_skb_irq(skb); |
| 1720 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1721 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1722 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1723 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1724 | } |
| 1725 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1726 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1727 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1728 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1729 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1730 | txq_disable(txq); |
| 1731 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1732 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1733 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1734 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1735 | if (txq->index == 0 && |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1736 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1737 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1738 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1739 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1740 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1741 | |
| 1742 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1743 | } |
| 1744 | |
| 1745 | |
| 1746 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1747 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1748 | { |
| 1749 | struct net_device *dev = mp->dev; |
| 1750 | u32 port_status; |
| 1751 | int speed; |
| 1752 | int duplex; |
| 1753 | int fc; |
| 1754 | |
| 1755 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1756 | if (!(port_status & LINK_UP)) { |
| 1757 | if (netif_carrier_ok(dev)) { |
| 1758 | int i; |
| 1759 | |
| 1760 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 1761 | |
| 1762 | netif_carrier_off(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1763 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1764 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1765 | struct tx_queue *txq = mp->txq + i; |
| 1766 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1767 | txq_reclaim(txq, 1); |
| 1768 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1769 | } |
| 1770 | } |
| 1771 | return; |
| 1772 | } |
| 1773 | |
| 1774 | switch (port_status & PORT_SPEED_MASK) { |
| 1775 | case PORT_SPEED_10: |
| 1776 | speed = 10; |
| 1777 | break; |
| 1778 | case PORT_SPEED_100: |
| 1779 | speed = 100; |
| 1780 | break; |
| 1781 | case PORT_SPEED_1000: |
| 1782 | speed = 1000; |
| 1783 | break; |
| 1784 | default: |
| 1785 | speed = -1; |
| 1786 | break; |
| 1787 | } |
| 1788 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1789 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1790 | |
| 1791 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " |
| 1792 | "flow control %sabled\n", dev->name, |
| 1793 | speed, duplex ? "full" : "half", |
| 1794 | fc ? "en" : "dis"); |
| 1795 | |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 1796 | if (!netif_carrier_ok(dev)) |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1797 | netif_carrier_on(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1798 | } |
| 1799 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1800 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1801 | { |
| 1802 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1803 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1804 | u32 int_cause; |
| 1805 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1806 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1807 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & |
| 1808 | (INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1809 | if (int_cause == 0) |
| 1810 | return IRQ_NONE; |
| 1811 | |
| 1812 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1813 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1814 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame^] | 1815 | & (INT_EXT_LINK_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1816 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1817 | } |
| 1818 | |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame^] | 1819 | if (int_cause_ext & INT_EXT_LINK_PHY) |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1820 | handle_link_event(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1821 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1822 | /* |
| 1823 | * RxBuffer or RxError set for any of the 8 queues? |
| 1824 | */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1825 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 819ddca | 2008-08-24 02:45:32 +0200 | [diff] [blame] | 1826 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_RX)); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1827 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1828 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1829 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 1830 | napi_schedule(&mp->napi); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1831 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1832 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1833 | /* |
| 1834 | * TxBuffer or TxError set for any of the 8 queues? |
| 1835 | */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1836 | if (int_cause_ext & INT_EXT_TX) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1837 | int i; |
| 1838 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1839 | for (i = 0; i < mp->txq_count; i++) |
| 1840 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1841 | |
| 1842 | /* |
| 1843 | * Enough space again in the primary TX queue for a |
| 1844 | * full packet? |
| 1845 | */ |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 1846 | spin_lock(&mp->lock); |
| 1847 | __txq_maybe_wake(mp->txq); |
| 1848 | spin_unlock(&mp->lock); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1849 | } |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1850 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1851 | /* |
| 1852 | * Any TxEnd interrupts? |
| 1853 | */ |
| 1854 | if (int_cause & INT_TX_END) { |
| 1855 | int i; |
| 1856 | |
| 1857 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_TX_END)); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1858 | |
| 1859 | spin_lock(&mp->lock); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1860 | for (i = 0; i < 8; i++) { |
| 1861 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1862 | u32 hw_desc_ptr; |
| 1863 | u32 expected_ptr; |
| 1864 | |
| 1865 | if ((int_cause & (INT_TX_END_0 << i)) == 0) |
| 1866 | continue; |
| 1867 | |
| 1868 | hw_desc_ptr = |
| 1869 | rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, i)); |
| 1870 | expected_ptr = (u32)txq->tx_desc_dma + |
| 1871 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1872 | |
| 1873 | if (hw_desc_ptr != expected_ptr) |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1874 | txq_enable(txq); |
| 1875 | } |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1876 | spin_unlock(&mp->lock); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1877 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1878 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1879 | return IRQ_HANDLED; |
| 1880 | } |
| 1881 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1882 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1883 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1884 | int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1885 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1886 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 1887 | if (data < 0) |
| 1888 | return; |
| 1889 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1890 | data |= BMCR_RESET; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1891 | if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data) < 0) |
| 1892 | return; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1893 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1894 | do { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1895 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 1896 | } while (data >= 0 && data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1897 | } |
| 1898 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1899 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1900 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1901 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1902 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1903 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1904 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1905 | * Perform PHY reset, if there is a PHY. |
| 1906 | */ |
| 1907 | if (mp->phy_addr != -1) { |
| 1908 | struct ethtool_cmd cmd; |
| 1909 | |
| 1910 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 1911 | phy_reset(mp); |
| 1912 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 1913 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1914 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1915 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1916 | * Configure basic link parameters. |
| 1917 | */ |
| 1918 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1919 | |
| 1920 | pscr |= SERIAL_PORT_ENABLE; |
| 1921 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1922 | |
| 1923 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
| 1924 | if (mp->phy_addr == -1) |
| 1925 | pscr |= FORCE_LINK_PASS; |
| 1926 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1927 | |
| 1928 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1929 | |
| 1930 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1931 | * Configure TX path and queues. |
| 1932 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1933 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1934 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1935 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1936 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1937 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1938 | txq_set_rate(txq, 1000000000, 16777216); |
| 1939 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1940 | } |
| 1941 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1942 | /* |
| 1943 | * Add configured unicast address to address filter table. |
| 1944 | */ |
| 1945 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1946 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1947 | /* |
| 1948 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1949 | * frames to RX queue #0. |
| 1950 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1951 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1952 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1953 | /* |
| 1954 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1955 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1956 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1957 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1958 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1959 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1960 | */ |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1961 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1962 | struct rx_queue *rxq = mp->rxq + i; |
| 1963 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1964 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1965 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1966 | addr = (u32)rxq->rx_desc_dma; |
| 1967 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1968 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1969 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1970 | rxq_enable(rxq); |
| 1971 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1972 | } |
| 1973 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1974 | 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] | 1975 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1976 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1977 | u32 val; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1978 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1979 | val = rdl(mp, SDMA_CONFIG(mp->port_num)); |
| 1980 | if (mp->shared->extended_rx_coal_limit) { |
| 1981 | if (coal > 0xffff) |
| 1982 | coal = 0xffff; |
| 1983 | val &= ~0x023fff80; |
| 1984 | val |= (coal & 0x8000) << 10; |
| 1985 | val |= (coal & 0x7fff) << 7; |
| 1986 | } else { |
| 1987 | if (coal > 0x3fff) |
| 1988 | coal = 0x3fff; |
| 1989 | val &= ~0x003fff00; |
| 1990 | val |= (coal & 0x3fff) << 8; |
| 1991 | } |
| 1992 | wrl(mp, SDMA_CONFIG(mp->port_num), val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1993 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1994 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1995 | 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] | 1996 | { |
| 1997 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1998 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1999 | if (coal > 0x3fff) |
| 2000 | coal = 0x3fff; |
| 2001 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2002 | } |
| 2003 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2004 | static int mv643xx_eth_open(struct net_device *dev) |
| 2005 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2006 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2007 | int err; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2008 | int oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2009 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2010 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2011 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 2012 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 2013 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2014 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2015 | err = request_irq(dev->irq, mv643xx_eth_irq, |
Lennert Buytenhek | 2a1867a | 2008-08-23 23:43:38 +0200 | [diff] [blame] | 2016 | IRQF_SHARED, dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2017 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2018 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2019 | return -EAGAIN; |
| 2020 | } |
| 2021 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2022 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2023 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2024 | napi_enable(&mp->napi); |
| 2025 | |
| 2026 | oom = 0; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2027 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2028 | err = rxq_init(mp, i); |
| 2029 | if (err) { |
| 2030 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2031 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2032 | goto out; |
| 2033 | } |
| 2034 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2035 | rxq_refill(mp->rxq + i, INT_MAX, &oom); |
| 2036 | } |
| 2037 | |
| 2038 | if (oom) { |
| 2039 | mp->rx_oom.expires = jiffies + (HZ / 10); |
| 2040 | add_timer(&mp->rx_oom); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2041 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2042 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2043 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2044 | err = txq_init(mp, i); |
| 2045 | if (err) { |
| 2046 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2047 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2048 | goto out_free; |
| 2049 | } |
| 2050 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2051 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2052 | netif_carrier_off(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2053 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2054 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2055 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2056 | set_rx_coal(mp, 0); |
| 2057 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2058 | |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame^] | 2059 | wrl(mp, INT_MASK_EXT(mp->port_num), INT_EXT_LINK_PHY | INT_EXT_TX); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 2060 | 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] | 2061 | |
| 2062 | return 0; |
| 2063 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2064 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2065 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2066 | for (i = 0; i < mp->rxq_count; i++) |
| 2067 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2068 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2069 | free_irq(dev->irq, dev); |
| 2070 | |
| 2071 | return err; |
| 2072 | } |
| 2073 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2074 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2075 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2076 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2077 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2078 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2079 | for (i = 0; i < mp->rxq_count; i++) |
| 2080 | rxq_disable(mp->rxq + i); |
| 2081 | for (i = 0; i < mp->txq_count; i++) |
| 2082 | txq_disable(mp->txq + i); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2083 | |
| 2084 | while (1) { |
| 2085 | u32 ps = rdl(mp, PORT_STATUS(mp->port_num)); |
| 2086 | |
| 2087 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2088 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2089 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2090 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2091 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2092 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2093 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2094 | data &= ~(SERIAL_PORT_ENABLE | |
| 2095 | DO_NOT_FORCE_LINK_FAIL | |
| 2096 | FORCE_LINK_PASS); |
| 2097 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2098 | } |
| 2099 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2100 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2101 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2102 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2103 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2104 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2105 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2106 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2107 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2108 | napi_disable(&mp->napi); |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2109 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2110 | del_timer_sync(&mp->rx_oom); |
| 2111 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2112 | netif_carrier_off(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2113 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2114 | free_irq(dev->irq, dev); |
| 2115 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2116 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2117 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2118 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2119 | for (i = 0; i < mp->rxq_count; i++) |
| 2120 | rxq_deinit(mp->rxq + i); |
| 2121 | for (i = 0; i < mp->txq_count; i++) |
| 2122 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2123 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2124 | return 0; |
| 2125 | } |
| 2126 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2127 | 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] | 2128 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2129 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2130 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2131 | if (mp->phy_addr != -1) |
| 2132 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 2133 | |
| 2134 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2135 | } |
| 2136 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2137 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2138 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2139 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2140 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2141 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2142 | return -EINVAL; |
| 2143 | |
| 2144 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2145 | tx_set_rate(mp, 1000000000, 16777216); |
| 2146 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2147 | if (!netif_running(dev)) |
| 2148 | return 0; |
| 2149 | |
| 2150 | /* |
| 2151 | * Stop and then re-open the interface. This will allocate RX |
| 2152 | * skbs of the new MTU. |
| 2153 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2154 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2155 | */ |
| 2156 | mv643xx_eth_stop(dev); |
| 2157 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2158 | dev_printk(KERN_ERR, &dev->dev, |
| 2159 | "fatal error on re-opening device after " |
| 2160 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2161 | } |
| 2162 | |
| 2163 | return 0; |
| 2164 | } |
| 2165 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2166 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2167 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2168 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2169 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2170 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2171 | if (netif_running(mp->dev)) { |
| 2172 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2173 | port_reset(mp); |
| 2174 | port_start(mp); |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 2175 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2176 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2177 | } |
| 2178 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2179 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2180 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2181 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2182 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2183 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2184 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2185 | schedule_work(&mp->tx_timeout_task); |
| 2186 | } |
| 2187 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2188 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2189 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2190 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2191 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2192 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2193 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2194 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2195 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2196 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2197 | |
Lennert Buytenhek | f2ca60f | 2008-07-07 00:03:00 +0200 | [diff] [blame] | 2198 | 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] | 2199 | } |
| 2200 | #endif |
| 2201 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2202 | 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] | 2203 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2204 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2205 | return smi_reg_read(mp, addr, reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2206 | } |
| 2207 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2208 | 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] | 2209 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2210 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2211 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2212 | } |
| 2213 | |
| 2214 | |
| 2215 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2216 | static void |
| 2217 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2218 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2219 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2220 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2221 | u32 win_enable; |
| 2222 | u32 win_protect; |
| 2223 | int i; |
| 2224 | |
| 2225 | for (i = 0; i < 6; i++) { |
| 2226 | writel(0, base + WINDOW_BASE(i)); |
| 2227 | writel(0, base + WINDOW_SIZE(i)); |
| 2228 | if (i < 4) |
| 2229 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2230 | } |
| 2231 | |
| 2232 | win_enable = 0x3f; |
| 2233 | win_protect = 0; |
| 2234 | |
| 2235 | for (i = 0; i < dram->num_cs; i++) { |
| 2236 | struct mbus_dram_window *cs = dram->cs + i; |
| 2237 | |
| 2238 | writel((cs->base & 0xffff0000) | |
| 2239 | (cs->mbus_attr << 8) | |
| 2240 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2241 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2242 | |
| 2243 | win_enable &= ~(1 << i); |
| 2244 | win_protect |= 3 << (2 * i); |
| 2245 | } |
| 2246 | |
| 2247 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2248 | msp->win_protect = win_protect; |
| 2249 | } |
| 2250 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2251 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2252 | { |
| 2253 | /* |
| 2254 | * Check whether we have a 14-bit coal limit field in bits |
| 2255 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2256 | * SDMA config register. |
| 2257 | */ |
| 2258 | writel(0x02000000, msp->base + SDMA_CONFIG(0)); |
| 2259 | if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) |
| 2260 | msp->extended_rx_coal_limit = 1; |
| 2261 | else |
| 2262 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2263 | |
| 2264 | /* |
| 2265 | * Check whether the TX rate control registers are in the |
| 2266 | * old or the new place. |
| 2267 | */ |
| 2268 | writel(1, msp->base + TX_BW_MTU_MOVED(0)); |
| 2269 | if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) |
| 2270 | msp->tx_bw_control_moved = 1; |
| 2271 | else |
| 2272 | msp->tx_bw_control_moved = 0; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2273 | } |
| 2274 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2275 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2276 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2277 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2278 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2279 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2280 | struct resource *res; |
| 2281 | int ret; |
| 2282 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2283 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | 7dde154 | 2008-07-15 12:20:30 +0200 | [diff] [blame] | 2284 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
| 2285 | "driver version %s\n", mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2286 | |
| 2287 | ret = -EINVAL; |
| 2288 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2289 | if (res == NULL) |
| 2290 | goto out; |
| 2291 | |
| 2292 | ret = -ENOMEM; |
| 2293 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2294 | if (msp == NULL) |
| 2295 | goto out; |
| 2296 | memset(msp, 0, sizeof(*msp)); |
| 2297 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2298 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2299 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2300 | goto out_free; |
| 2301 | |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 2302 | msp->smi = msp; |
| 2303 | if (pd != NULL && pd->shared_smi != NULL) |
| 2304 | msp->smi = platform_get_drvdata(pd->shared_smi); |
| 2305 | |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 2306 | mutex_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2307 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2308 | msp->err_interrupt = NO_IRQ; |
| 2309 | init_waitqueue_head(&msp->smi_busy_wait); |
| 2310 | |
| 2311 | /* |
| 2312 | * Check whether the error interrupt is hooked up. |
| 2313 | */ |
| 2314 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2315 | if (res != NULL) { |
| 2316 | int err; |
| 2317 | |
| 2318 | err = request_irq(res->start, mv643xx_eth_err_irq, |
| 2319 | IRQF_SHARED, "mv643xx_eth", msp); |
| 2320 | if (!err) { |
| 2321 | writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK); |
| 2322 | msp->err_interrupt = res->start; |
| 2323 | } |
| 2324 | } |
| 2325 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2326 | /* |
| 2327 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2328 | */ |
| 2329 | if (pd != NULL && pd->dram != NULL) |
| 2330 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2331 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2332 | /* |
| 2333 | * Detect hardware parameters. |
| 2334 | */ |
| 2335 | 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] | 2336 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2337 | |
| 2338 | platform_set_drvdata(pdev, msp); |
| 2339 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2340 | return 0; |
| 2341 | |
| 2342 | out_free: |
| 2343 | kfree(msp); |
| 2344 | out: |
| 2345 | return ret; |
| 2346 | } |
| 2347 | |
| 2348 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2349 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2350 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2351 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2352 | if (msp->err_interrupt != NO_IRQ) |
| 2353 | free_irq(msp->err_interrupt, msp); |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2354 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2355 | kfree(msp); |
| 2356 | |
| 2357 | return 0; |
| 2358 | } |
| 2359 | |
| 2360 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2361 | .probe = mv643xx_eth_shared_probe, |
| 2362 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2363 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2364 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2365 | .owner = THIS_MODULE, |
| 2366 | }, |
| 2367 | }; |
| 2368 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2369 | 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] | 2370 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2371 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2372 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2373 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2374 | data = rdl(mp, PHY_ADDR); |
| 2375 | data &= ~(0x1f << addr_shift); |
| 2376 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2377 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2378 | } |
| 2379 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2380 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2381 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2382 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2383 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2384 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2385 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2386 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2387 | } |
| 2388 | |
| 2389 | static void set_params(struct mv643xx_eth_private *mp, |
| 2390 | struct mv643xx_eth_platform_data *pd) |
| 2391 | { |
| 2392 | struct net_device *dev = mp->dev; |
| 2393 | |
| 2394 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2395 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2396 | else |
| 2397 | uc_addr_get(mp, dev->dev_addr); |
| 2398 | |
Lennert Buytenhek | ac840605 | 2008-08-26 14:06:47 +0200 | [diff] [blame] | 2399 | if (pd->phy_addr == MV643XX_ETH_PHY_NONE) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2400 | mp->phy_addr = -1; |
| 2401 | } else { |
Lennert Buytenhek | ac840605 | 2008-08-26 14:06:47 +0200 | [diff] [blame] | 2402 | if (pd->phy_addr != MV643XX_ETH_PHY_ADDR_DEFAULT) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2403 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2404 | phy_addr_set(mp, mp->phy_addr); |
| 2405 | } else { |
| 2406 | mp->phy_addr = phy_addr_get(mp); |
| 2407 | } |
| 2408 | } |
| 2409 | |
| 2410 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2411 | if (pd->rx_queue_size) |
| 2412 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2413 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2414 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2415 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2416 | mp->rxq_count = pd->rx_queue_count ? : 1; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2417 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2418 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2419 | if (pd->tx_queue_size) |
| 2420 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2421 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2422 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2423 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2424 | mp->txq_count = pd->tx_queue_count ? : 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2425 | } |
| 2426 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2427 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2428 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2429 | int data; |
| 2430 | int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2431 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2432 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 2433 | if (data < 0) |
| 2434 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2435 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2436 | if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data ^ BMCR_ANENABLE) < 0) |
| 2437 | return -ENODEV; |
| 2438 | |
| 2439 | data2 = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 2440 | if (data2 < 0) |
| 2441 | return -ENODEV; |
| 2442 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2443 | if (((data ^ data2) & BMCR_ANENABLE) == 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2444 | return -ENODEV; |
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_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2447 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2448 | return 0; |
| 2449 | } |
| 2450 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2451 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2452 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2453 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2454 | struct ethtool_cmd cmd; |
| 2455 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2456 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2457 | err = phy_detect(mp); |
| 2458 | if (err) { |
| 2459 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2460 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2461 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2462 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2463 | phy_reset(mp); |
| 2464 | |
| 2465 | mp->mii.phy_id = mp->phy_addr; |
| 2466 | mp->mii.phy_id_mask = 0x3f; |
| 2467 | mp->mii.reg_num_mask = 0x1f; |
| 2468 | mp->mii.dev = mp->dev; |
| 2469 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2470 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2471 | |
| 2472 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2473 | |
| 2474 | memset(&cmd, 0, sizeof(cmd)); |
| 2475 | |
| 2476 | cmd.port = PORT_MII; |
| 2477 | cmd.transceiver = XCVR_INTERNAL; |
| 2478 | cmd.phy_address = mp->phy_addr; |
| 2479 | if (pd->speed == 0) { |
| 2480 | cmd.autoneg = AUTONEG_ENABLE; |
| 2481 | cmd.speed = SPEED_100; |
| 2482 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2483 | ADVERTISED_10baseT_Full | |
| 2484 | ADVERTISED_100baseT_Half | |
| 2485 | ADVERTISED_100baseT_Full; |
| 2486 | if (mp->mii.supports_gmii) |
| 2487 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2488 | } else { |
| 2489 | cmd.autoneg = AUTONEG_DISABLE; |
| 2490 | cmd.speed = pd->speed; |
| 2491 | cmd.duplex = pd->duplex; |
| 2492 | } |
| 2493 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2494 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2495 | |
| 2496 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2497 | } |
| 2498 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2499 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2500 | { |
| 2501 | u32 pscr; |
| 2502 | |
| 2503 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2504 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2505 | pscr &= ~SERIAL_PORT_ENABLE; |
| 2506 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2507 | } |
| 2508 | |
| 2509 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
| 2510 | if (mp->phy_addr == -1) { |
| 2511 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2512 | if (speed == SPEED_1000) |
| 2513 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2514 | else if (speed == SPEED_100) |
| 2515 | pscr |= SET_MII_SPEED_TO_100; |
| 2516 | |
| 2517 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2518 | |
| 2519 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2520 | if (duplex == DUPLEX_FULL) |
| 2521 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2522 | } |
| 2523 | |
| 2524 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2525 | } |
| 2526 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2527 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2528 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2529 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2530 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2531 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2532 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2533 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2534 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2535 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2536 | pd = pdev->dev.platform_data; |
| 2537 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2538 | dev_printk(KERN_ERR, &pdev->dev, |
| 2539 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2540 | return -ENODEV; |
| 2541 | } |
| 2542 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2543 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2544 | dev_printk(KERN_ERR, &pdev->dev, |
| 2545 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2546 | return -ENODEV; |
| 2547 | } |
| 2548 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2549 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2550 | if (!dev) |
| 2551 | return -ENOMEM; |
| 2552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2553 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2554 | platform_set_drvdata(pdev, mp); |
| 2555 | |
| 2556 | mp->shared = platform_get_drvdata(pd->shared); |
| 2557 | mp->port_num = pd->port_number; |
| 2558 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2559 | mp->dev = dev; |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2560 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2561 | set_params(mp, pd); |
| 2562 | |
| 2563 | spin_lock_init(&mp->lock); |
| 2564 | |
| 2565 | mib_counters_clear(mp); |
| 2566 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2567 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2568 | if (mp->phy_addr != -1) { |
| 2569 | err = phy_init(mp, pd); |
| 2570 | if (err) |
| 2571 | goto out; |
| 2572 | |
| 2573 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2574 | } else { |
| 2575 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); |
| 2576 | } |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2577 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2578 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2579 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128); |
| 2580 | |
| 2581 | init_timer(&mp->rx_oom); |
| 2582 | mp->rx_oom.data = (unsigned long)mp; |
| 2583 | mp->rx_oom.function = oom_timer_wrapper; |
| 2584 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2586 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2587 | BUG_ON(!res); |
| 2588 | dev->irq = res->start; |
| 2589 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2590 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2591 | dev->open = mv643xx_eth_open; |
| 2592 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2593 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2594 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2595 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2596 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2597 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2598 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2599 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2600 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2602 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2603 | |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2604 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2605 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2606 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2607 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2608 | |
| 2609 | if (mp->shared->win_protect) |
| 2610 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2611 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2612 | err = register_netdev(dev); |
| 2613 | if (err) |
| 2614 | goto out; |
| 2615 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2616 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2617 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2618 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2619 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2620 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2621 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | return 0; |
| 2623 | |
| 2624 | out: |
| 2625 | free_netdev(dev); |
| 2626 | |
| 2627 | return err; |
| 2628 | } |
| 2629 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2630 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2631 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2632 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2633 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2634 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2635 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2636 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2638 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2640 | return 0; |
| 2641 | } |
| 2642 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2643 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2644 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2645 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2646 | |
| 2647 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2648 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2649 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2650 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2651 | if (netif_running(mp->dev)) |
| 2652 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2653 | } |
| 2654 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2655 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2656 | .probe = mv643xx_eth_probe, |
| 2657 | .remove = mv643xx_eth_remove, |
| 2658 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2659 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2660 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2661 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2662 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2663 | }; |
| 2664 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2665 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | { |
| 2667 | int rc; |
| 2668 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2669 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2670 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2671 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2672 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2673 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2674 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2675 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2676 | return rc; |
| 2677 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2678 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2679 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2680 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2682 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2683 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2685 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2686 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 2687 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 2688 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2689 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2690 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2691 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2692 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |