Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Lennert Buytenhek | 9c1bbdf | 2007-10-19 04:11:03 +0200 | [diff] [blame] | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
| 4 | * |
| 5 | * Based on the 64360 driver from: |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
| 7 | * Rabeeh Khoury <rabeeh@marvell.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 2003 PMC-Sierra, Inc., |
Olaf Hering | 3bb8a18 | 2006-01-05 22:45:45 -0800 | [diff] [blame] | 10 | * written by Manish Lachwani |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * |
| 12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> |
| 13 | * |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Dale Farnsworth <dale@farnsworth.org> |
| 16 | * |
| 17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> |
| 18 | * <sjhill@realitydiluted.com> |
| 19 | * |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
| 21 | * Lennert Buytenhek <buytenh@marvell.com> |
| 22 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | * This program is free software; you can redistribute it and/or |
| 24 | * modify it under the terms of the GNU General Public License |
| 25 | * as published by the Free Software Foundation; either version 2 |
| 26 | * of the License, or (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 31 | * GNU General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public License |
| 34 | * along with this program; if not, write to the Free Software |
| 35 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 36 | */ |
Lennert Buytenhek | a779d38 | 2008-06-01 00:54:05 +0200 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/init.h> |
| 39 | #include <linux/dma-mapping.h> |
Al Viro | b6298c2 | 2006-01-18 19:35:54 -0500 | [diff] [blame] | 40 | #include <linux/in.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <linux/tcp.h> |
| 42 | #include <linux/udp.h> |
| 43 | #include <linux/etherdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/delay.h> |
| 45 | #include <linux/ethtool.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 46 | #include <linux/platform_device.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 47 | #include <linux/module.h> |
| 48 | #include <linux/kernel.h> |
| 49 | #include <linux/spinlock.h> |
| 50 | #include <linux/workqueue.h> |
| 51 | #include <linux/mii.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 52 | #include <linux/mv643xx_eth.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/io.h> |
| 54 | #include <asm/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #include <asm/system.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 56 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 57 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
Lennert Buytenhek | c456031 | 2008-08-24 07:33:05 +0200 | [diff] [blame] | 58 | static char mv643xx_eth_driver_version[] = "1.3"; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 59 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 60 | #define MV643XX_ETH_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 | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 108 | #define INT_RX 0x0007fbfc |
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 | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 111 | #define INT_EXT_LINK 0x00100000 |
| 112 | #define INT_EXT_PHY 0x00010000 |
| 113 | #define INT_EXT_TX_ERROR_0 0x00000100 |
| 114 | #define INT_EXT_TX_0 0x00000001 |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 115 | #define INT_EXT_TX 0x0000ffff |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 116 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 117 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 118 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 119 | #define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) |
| 120 | #define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) |
| 121 | #define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) |
| 122 | #define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 123 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 124 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 125 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
| 126 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) |
| 127 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) |
| 128 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 129 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 130 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 131 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 132 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 133 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 134 | |
| 135 | /* |
| 136 | * SDMA configuration register. |
| 137 | */ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 138 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 139 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 140 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 141 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 142 | |
| 143 | #if defined(__BIG_ENDIAN) |
| 144 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 145 | RX_BURST_SIZE_16_64BIT | \ |
| 146 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 147 | #elif defined(__LITTLE_ENDIAN) |
| 148 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 149 | RX_BURST_SIZE_16_64BIT | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 150 | BLM_RX_NO_SWAP | \ |
| 151 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 152 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 153 | #else |
| 154 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 155 | #endif |
| 156 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 157 | |
| 158 | /* |
| 159 | * Port serial control register. |
| 160 | */ |
| 161 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 162 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 163 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 164 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 165 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 166 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 167 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 168 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 169 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 170 | #define FORCE_LINK_PASS (1 << 1) |
| 171 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 172 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 173 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 174 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 175 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 176 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 177 | /* |
| 178 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 179 | */ |
| 180 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 181 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 182 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 183 | u16 buf_size; /* Buffer size */ |
| 184 | u32 cmd_sts; /* Descriptor command status */ |
| 185 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 186 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 187 | }; |
| 188 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 189 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 190 | u16 byte_cnt; /* buffer byte count */ |
| 191 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 192 | u32 cmd_sts; /* Command/status field */ |
| 193 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 194 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 195 | }; |
| 196 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 197 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 198 | u32 cmd_sts; /* Descriptor command status */ |
| 199 | u16 buf_size; /* Buffer size */ |
| 200 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 201 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 202 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 203 | }; |
| 204 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 205 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 206 | u32 cmd_sts; /* Command/status field */ |
| 207 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 208 | u16 byte_cnt; /* buffer byte count */ |
| 209 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 210 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 211 | }; |
| 212 | #else |
| 213 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 214 | #endif |
| 215 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 216 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 217 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 218 | |
| 219 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 220 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 221 | |
| 222 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 223 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 224 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 225 | #define RX_FIRST_DESC 0x08000000 |
| 226 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 227 | |
| 228 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 229 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 230 | #define GEN_CRC 0x00400000 |
| 231 | #define TX_FIRST_DESC 0x00200000 |
| 232 | #define TX_LAST_DESC 0x00100000 |
| 233 | #define ZERO_PADDING 0x00080000 |
| 234 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 235 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 236 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 237 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
| 238 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 239 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 240 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 241 | |
| 242 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 243 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 244 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 245 | /* |
| 246 | * Ethernet controller base address. |
| 247 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 248 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 249 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 250 | /* |
| 251 | * Protects access to SMI_REG, which is shared between ports. |
| 252 | */ |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 253 | struct mutex phy_lock; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 254 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 255 | /* |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 256 | * If we have access to the error interrupt pin (which is |
| 257 | * somewhat misnamed as it not only reflects internal errors |
| 258 | * but also reflects SMI completion), use that to wait for |
| 259 | * SMI access completion instead of polling the SMI busy bit. |
| 260 | */ |
| 261 | int err_interrupt; |
| 262 | wait_queue_head_t smi_busy_wait; |
| 263 | |
| 264 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 265 | * Per-port MBUS window access register value. |
| 266 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 267 | u32 win_protect; |
| 268 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 269 | /* |
| 270 | * Hardware-specific parameters. |
| 271 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 272 | unsigned int t_clk; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 273 | int extended_rx_coal_limit; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 274 | int tx_bw_control_moved; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 275 | }; |
| 276 | |
| 277 | |
| 278 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 279 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 280 | u64 good_octets_received; |
| 281 | u32 bad_octets_received; |
| 282 | u32 internal_mac_transmit_err; |
| 283 | u32 good_frames_received; |
| 284 | u32 bad_frames_received; |
| 285 | u32 broadcast_frames_received; |
| 286 | u32 multicast_frames_received; |
| 287 | u32 frames_64_octets; |
| 288 | u32 frames_65_to_127_octets; |
| 289 | u32 frames_128_to_255_octets; |
| 290 | u32 frames_256_to_511_octets; |
| 291 | u32 frames_512_to_1023_octets; |
| 292 | u32 frames_1024_to_max_octets; |
| 293 | u64 good_octets_sent; |
| 294 | u32 good_frames_sent; |
| 295 | u32 excessive_collision; |
| 296 | u32 multicast_frames_sent; |
| 297 | u32 broadcast_frames_sent; |
| 298 | u32 unrec_mac_control_received; |
| 299 | u32 fc_sent; |
| 300 | u32 good_fc_received; |
| 301 | u32 bad_fc_received; |
| 302 | u32 undersize_received; |
| 303 | u32 fragments_received; |
| 304 | u32 oversize_received; |
| 305 | u32 jabber_received; |
| 306 | u32 mac_receive_error; |
| 307 | u32 bad_crc_event; |
| 308 | u32 collision; |
| 309 | u32 late_collision; |
| 310 | }; |
| 311 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 312 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 313 | int index; |
| 314 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 315 | int rx_ring_size; |
| 316 | |
| 317 | int rx_desc_count; |
| 318 | int rx_curr_desc; |
| 319 | int rx_used_desc; |
| 320 | |
| 321 | struct rx_desc *rx_desc_area; |
| 322 | dma_addr_t rx_desc_dma; |
| 323 | int rx_desc_area_size; |
| 324 | struct sk_buff **rx_skb; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 325 | }; |
| 326 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 327 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 328 | int index; |
| 329 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 330 | int tx_ring_size; |
| 331 | |
| 332 | int tx_desc_count; |
| 333 | int tx_curr_desc; |
| 334 | int tx_used_desc; |
| 335 | |
| 336 | struct tx_desc *tx_desc_area; |
| 337 | dma_addr_t tx_desc_dma; |
| 338 | int tx_desc_area_size; |
| 339 | struct sk_buff **tx_skb; |
| 340 | }; |
| 341 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 342 | struct mv643xx_eth_private { |
| 343 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 344 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 345 | |
| 346 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 347 | |
| 348 | struct mv643xx_eth_shared_private *shared_smi; |
| 349 | int phy_addr; |
| 350 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 351 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 352 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 353 | struct mib_counters mib_counters; |
| 354 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 355 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 356 | |
| 357 | /* |
| 358 | * RX state. |
| 359 | */ |
| 360 | int default_rx_ring_size; |
| 361 | unsigned long rx_desc_sram_addr; |
| 362 | int rx_desc_sram_size; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 363 | u8 rxq_mask; |
| 364 | int rxq_primary; |
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 | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 375 | u8 txq_mask; |
| 376 | int txq_primary; |
| 377 | struct tx_queue txq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 378 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 379 | int tx_clean_threshold; |
| 380 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 381 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 383 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 384 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 385 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 387 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 390 | 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] | 391 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 392 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | } |
| 394 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 395 | |
| 396 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 397 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 399 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 400 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 402 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 403 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 404 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 405 | } |
| 406 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 407 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 408 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 409 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 410 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 411 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 412 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 413 | static void rxq_disable(struct rx_queue *rxq) |
| 414 | { |
| 415 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 416 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 417 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 418 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 419 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 420 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 421 | } |
| 422 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 423 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 424 | { |
| 425 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 426 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index); |
| 427 | u32 addr; |
| 428 | |
| 429 | addr = (u32)txq->tx_desc_dma; |
| 430 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 431 | wrl(mp, off, addr); |
| 432 | } |
| 433 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 434 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 435 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 436 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 437 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 438 | } |
| 439 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 440 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 441 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 442 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 443 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 444 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 445 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 446 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 447 | udelay(10); |
| 448 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 449 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 450 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 451 | { |
| 452 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 453 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 454 | /* |
| 455 | * netif_{stop,wake}_queue() flow control only applies to |
| 456 | * the primary queue. |
| 457 | */ |
| 458 | BUG_ON(txq->index != mp->txq_primary); |
| 459 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame^] | 460 | 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] | 461 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | |
| 465 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 466 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 467 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 468 | static int rxq_refill(struct rx_queue *rxq, int budget, int *oom) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 469 | { |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 470 | int skb_size; |
| 471 | int refilled; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 472 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 473 | /* |
| 474 | * Reserve 2+14 bytes for an ethernet header (the hardware |
| 475 | * automatically prepends 2 bytes of dummy data to each |
| 476 | * received packet), 16 bytes for up to four VLAN tags, and |
| 477 | * 4 bytes for the trailing FCS -- 36 bytes total. |
| 478 | */ |
| 479 | skb_size = rxq_to_mp(rxq)->dev->mtu + 36; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 480 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 481 | /* |
| 482 | * Make sure that the skb size is a multiple of 8 bytes, as |
| 483 | * the lower three bits of the receive descriptor's buffer |
| 484 | * size field are ignored by the hardware. |
| 485 | */ |
| 486 | skb_size = (skb_size + 7) & ~7; |
| 487 | |
| 488 | refilled = 0; |
| 489 | while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 490 | struct sk_buff *skb; |
| 491 | int unaligned; |
| 492 | int rx; |
| 493 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 494 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 495 | if (skb == NULL) { |
| 496 | *oom = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | break; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 498 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 499 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 500 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 501 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 502 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 503 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 504 | refilled++; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 505 | rxq->rx_desc_count++; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 506 | |
| 507 | rx = rxq->rx_used_desc++; |
| 508 | if (rxq->rx_used_desc == rxq->rx_ring_size) |
| 509 | rxq->rx_used_desc = 0; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 510 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 511 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 512 | skb_size, DMA_FROM_DEVICE); |
| 513 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 514 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 515 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 516 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 517 | RX_ENABLE_INTERRUPT; |
| 518 | wmb(); |
| 519 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 520 | /* |
| 521 | * The hardware automatically prepends 2 bytes of |
| 522 | * dummy data to each received packet, so that the |
| 523 | * IP header ends up 16-byte aligned. |
| 524 | */ |
| 525 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 527 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 528 | return refilled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | } |
| 530 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 531 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 533 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 534 | struct net_device_stats *stats = &mp->dev->stats; |
| 535 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 537 | rx = 0; |
Lennert Buytenhek | 9e1f377 | 2008-08-24 02:33:47 +0200 | [diff] [blame] | 538 | while (rx < budget && rxq->rx_desc_count) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 539 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 540 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 541 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 542 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 543 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 544 | |
| 545 | cmd_sts = rx_desc->cmd_sts; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 546 | if (cmd_sts & BUFFER_OWNED_BY_DMA) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 547 | break; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 548 | rmb(); |
| 549 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 550 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 551 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 552 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 553 | rxq->rx_curr_desc++; |
| 554 | if (rxq->rx_curr_desc == rxq->rx_ring_size) |
| 555 | rxq->rx_curr_desc = 0; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 556 | |
Lennert Buytenhek | 3a49948 | 2008-08-24 07:19:48 +0200 | [diff] [blame] | 557 | dma_unmap_single(NULL, rx_desc->buf_ptr, |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 558 | rx_desc->buf_size, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 559 | rxq->rx_desc_count--; |
| 560 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 561 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 562 | /* |
| 563 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 564 | * |
| 565 | * Note that the descriptor byte count includes 2 dummy |
| 566 | * bytes automatically inserted by the hardware at the |
| 567 | * start of the packet (which we don't count), and a 4 |
| 568 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 569 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 571 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 574 | * In case we received a packet without first / last bits |
| 575 | * on, or the error summary bit is set, the packet needs |
| 576 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 578 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 579 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 580 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 582 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 583 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 584 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 586 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 587 | "received packet spanning " |
| 588 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 590 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 591 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | stats->rx_errors++; |
| 593 | |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 594 | dev_kfree_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | } else { |
| 596 | /* |
| 597 | * The -4 is for the CRC in the trailer of the |
| 598 | * received packet |
| 599 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 600 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 602 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 604 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 605 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 607 | skb->protocol = eth_type_trans(skb, mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | netif_receive_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 610 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 611 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 613 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 614 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | } |
| 616 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 617 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 619 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 620 | int work_done; |
| 621 | int oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 622 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 623 | |
| 624 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 626 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | if (++mp->tx_clean_threshold > 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | mp->tx_clean_threshold = 0; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 629 | for (i = 0; i < 8; i++) |
| 630 | if (mp->txq_mask & (1 << i)) |
| 631 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 632 | |
| 633 | if (netif_carrier_ok(mp->dev)) { |
Lennert Buytenhek | 8e0b1bf | 2008-08-24 02:30:42 +0200 | [diff] [blame] | 634 | spin_lock_irq(&mp->lock); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 635 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | 8e0b1bf | 2008-08-24 02:30:42 +0200 | [diff] [blame] | 636 | spin_unlock_irq(&mp->lock); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 637 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | } |
| 639 | #endif |
| 640 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 641 | work_done = 0; |
| 642 | oom = 0; |
| 643 | for (i = 7; work_done < budget && i >= 0; i--) { |
| 644 | if (mp->rxq_mask & (1 << i)) { |
| 645 | struct rx_queue *rxq = mp->rxq + i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 647 | work_done += rxq_process(rxq, budget - work_done); |
| 648 | work_done += rxq_refill(rxq, budget - work_done, &oom); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (work_done < budget) { |
| 653 | if (oom) |
| 654 | mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 655 | netif_rx_complete(mp->dev, napi); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 656 | 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] | 657 | } |
| 658 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 659 | return work_done; |
| 660 | } |
| 661 | |
| 662 | static inline void oom_timer_wrapper(unsigned long data) |
| 663 | { |
| 664 | struct mv643xx_eth_private *mp = (void *)data; |
| 665 | |
| 666 | napi_schedule(&mp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 669 | |
| 670 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 671 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 672 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 673 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 674 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 675 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 676 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 677 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 678 | return 1; |
| 679 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 680 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 681 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 682 | } |
| 683 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 684 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 685 | { |
| 686 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 687 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 688 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 689 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 690 | tx_desc_curr = txq->tx_curr_desc++; |
| 691 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 692 | txq->tx_curr_desc = 0; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 693 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 694 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 695 | |
| 696 | return tx_desc_curr; |
| 697 | } |
| 698 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 699 | 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] | 700 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 701 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 702 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 703 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 704 | for (frag = 0; frag < nr_frags; frag++) { |
| 705 | skb_frag_t *this_frag; |
| 706 | int tx_index; |
| 707 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 708 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 709 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 710 | tx_index = txq_alloc_desc_index(txq); |
| 711 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 712 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 713 | /* |
| 714 | * The last fragment will generate an interrupt |
| 715 | * which will free the skb on TX completion. |
| 716 | */ |
| 717 | if (frag == nr_frags - 1) { |
| 718 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 719 | ZERO_PADDING | TX_LAST_DESC | |
| 720 | TX_ENABLE_INTERRUPT; |
| 721 | txq->tx_skb[tx_index] = skb; |
| 722 | } else { |
| 723 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 724 | txq->tx_skb[tx_index] = NULL; |
| 725 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 726 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 727 | desc->l4i_chk = 0; |
| 728 | desc->byte_cnt = this_frag->size; |
| 729 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 730 | this_frag->page_offset, |
| 731 | this_frag->size, |
| 732 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 733 | } |
| 734 | } |
| 735 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 736 | static inline __be16 sum16_as_be(__sum16 sum) |
| 737 | { |
| 738 | return (__force __be16)sum; |
| 739 | } |
| 740 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 741 | 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] | 742 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 743 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 744 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 745 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 746 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 747 | u32 cmd_sts; |
| 748 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 749 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 750 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 751 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 752 | tx_index = txq_alloc_desc_index(txq); |
| 753 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 754 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 755 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 756 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 757 | |
| 758 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 759 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 760 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 761 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 762 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 763 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 764 | } |
| 765 | |
| 766 | desc->byte_cnt = length; |
| 767 | 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] | 768 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 769 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 770 | int mac_hdr_len; |
| 771 | |
| 772 | BUG_ON(skb->protocol != htons(ETH_P_IP) && |
| 773 | skb->protocol != htons(ETH_P_8021Q)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 774 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 775 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 776 | GEN_IP_V4_CHECKSUM | |
| 777 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 778 | |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 779 | mac_hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; |
| 780 | switch (mac_hdr_len - ETH_HLEN) { |
| 781 | case 0: |
| 782 | break; |
| 783 | case 4: |
| 784 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 785 | break; |
| 786 | case 8: |
| 787 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 788 | break; |
| 789 | case 12: |
| 790 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 791 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 792 | break; |
| 793 | default: |
| 794 | if (net_ratelimit()) |
| 795 | dev_printk(KERN_ERR, &txq_to_mp(txq)->dev->dev, |
| 796 | "mac header length is %d?!\n", mac_hdr_len); |
| 797 | break; |
| 798 | } |
| 799 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 800 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 801 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 802 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 803 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 804 | break; |
| 805 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 806 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 807 | break; |
| 808 | default: |
| 809 | BUG(); |
| 810 | } |
| 811 | } else { |
| 812 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 813 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 814 | desc->l4i_chk = 0; |
| 815 | } |
| 816 | |
| 817 | /* ensure all other descriptors are written before first cmd_sts */ |
| 818 | wmb(); |
| 819 | desc->cmd_sts = cmd_sts; |
| 820 | |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 821 | /* clear TX_END interrupt status */ |
| 822 | wrl(mp, INT_CAUSE(mp->port_num), ~(INT_TX_END_0 << txq->index)); |
| 823 | rdl(mp, INT_CAUSE(mp->port_num)); |
| 824 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 825 | /* ensure all descriptors are written before poking hardware */ |
| 826 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 827 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 828 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 829 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 832 | 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] | 833 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 834 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 835 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 836 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 839 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 840 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 841 | dev_printk(KERN_DEBUG, &dev->dev, |
| 842 | "failed to linearize skb with tiny " |
| 843 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 844 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 845 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | spin_lock_irqsave(&mp->lock, flags); |
| 848 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 849 | txq = mp->txq + mp->txq_primary; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 850 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame^] | 851 | 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] | 852 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 853 | if (txq->index == mp->txq_primary && net_ratelimit()) |
| 854 | dev_printk(KERN_ERR, &dev->dev, |
| 855 | "primary tx queue full?!\n"); |
| 856 | kfree_skb(skb); |
| 857 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 858 | } |
| 859 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 860 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 861 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | stats->tx_packets++; |
| 863 | dev->trans_start = jiffies; |
| 864 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 865 | if (txq->index == mp->txq_primary) { |
| 866 | int entries_left; |
| 867 | |
| 868 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame^] | 869 | if (entries_left < MAX_SKB_FRAGS + 1) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 870 | netif_stop_queue(dev); |
| 871 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 872 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | spin_unlock_irqrestore(&mp->lock, flags); |
| 874 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 875 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 878 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 879 | /* tx rate control **********************************************************/ |
| 880 | /* |
| 881 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 882 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 883 | */ |
| 884 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 885 | { |
| 886 | int token_rate; |
| 887 | int mtu; |
| 888 | int bucket_size; |
| 889 | |
| 890 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 891 | if (token_rate > 1023) |
| 892 | token_rate = 1023; |
| 893 | |
| 894 | mtu = (mp->dev->mtu + 255) >> 8; |
| 895 | if (mtu > 63) |
| 896 | mtu = 63; |
| 897 | |
| 898 | bucket_size = (burst + 255) >> 8; |
| 899 | if (bucket_size > 65535) |
| 900 | bucket_size = 65535; |
| 901 | |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 902 | if (mp->shared->tx_bw_control_moved) { |
| 903 | wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); |
| 904 | wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); |
| 905 | wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); |
| 906 | } else { |
| 907 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 908 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 909 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 910 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 911 | } |
| 912 | |
| 913 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 914 | { |
| 915 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 916 | int token_rate; |
| 917 | int bucket_size; |
| 918 | |
| 919 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 920 | if (token_rate > 1023) |
| 921 | token_rate = 1023; |
| 922 | |
| 923 | bucket_size = (burst + 255) >> 8; |
| 924 | if (bucket_size > 65535) |
| 925 | bucket_size = 65535; |
| 926 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 927 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
| 928 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 929 | (bucket_size << 10) | token_rate); |
| 930 | } |
| 931 | |
| 932 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 933 | { |
| 934 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 935 | int off; |
| 936 | u32 val; |
| 937 | |
| 938 | /* |
| 939 | * Turn on fixed priority mode. |
| 940 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 941 | if (mp->shared->tx_bw_control_moved) |
| 942 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 943 | else |
| 944 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 945 | |
| 946 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 947 | val |= 1 << txq->index; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 948 | wrl(mp, off, val); |
| 949 | } |
| 950 | |
| 951 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 952 | { |
| 953 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 954 | int off; |
| 955 | u32 val; |
| 956 | |
| 957 | /* |
| 958 | * Turn off fixed priority mode. |
| 959 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 960 | if (mp->shared->tx_bw_control_moved) |
| 961 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 962 | else |
| 963 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 964 | |
| 965 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 966 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 967 | wrl(mp, off, val); |
| 968 | |
| 969 | /* |
| 970 | * Configure WRR weight for this queue. |
| 971 | */ |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 972 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 973 | |
| 974 | val = rdl(mp, off); |
| 975 | val = (val & ~0xff) | (weight & 0xff); |
| 976 | wrl(mp, off, val); |
| 977 | } |
| 978 | |
| 979 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 980 | /* mii management interface *************************************************/ |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 981 | static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 982 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 983 | struct mv643xx_eth_shared_private *msp = dev_id; |
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 | if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) { |
| 986 | writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE); |
| 987 | wake_up(&msp->smi_busy_wait); |
| 988 | return IRQ_HANDLED; |
| 989 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 990 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 991 | return IRQ_NONE; |
| 992 | } |
| 993 | |
| 994 | static int smi_is_done(struct mv643xx_eth_shared_private *msp) |
| 995 | { |
| 996 | return !(readl(msp->base + SMI_REG) & SMI_BUSY); |
| 997 | } |
| 998 | |
| 999 | static int smi_wait_ready(struct mv643xx_eth_shared_private *msp) |
| 1000 | { |
| 1001 | if (msp->err_interrupt == NO_IRQ) { |
| 1002 | int i; |
| 1003 | |
| 1004 | for (i = 0; !smi_is_done(msp); i++) { |
| 1005 | if (i == 10) |
| 1006 | return -ETIMEDOUT; |
| 1007 | msleep(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1008 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1009 | |
| 1010 | return 0; |
| 1011 | } |
| 1012 | |
| 1013 | if (!wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp), |
| 1014 | msecs_to_jiffies(100))) |
| 1015 | return -ETIMEDOUT; |
| 1016 | |
| 1017 | return 0; |
| 1018 | } |
| 1019 | |
| 1020 | static int smi_reg_read(struct mv643xx_eth_private *mp, |
| 1021 | unsigned int addr, unsigned int reg) |
| 1022 | { |
| 1023 | struct mv643xx_eth_shared_private *msp = mp->shared_smi; |
| 1024 | void __iomem *smi_reg = msp->base + SMI_REG; |
| 1025 | int ret; |
| 1026 | |
| 1027 | mutex_lock(&msp->phy_lock); |
| 1028 | |
| 1029 | if (smi_wait_ready(msp)) { |
| 1030 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1031 | ret = -ETIMEDOUT; |
| 1032 | goto out; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1033 | } |
| 1034 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1035 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1036 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1037 | if (smi_wait_ready(msp)) { |
| 1038 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1039 | ret = -ETIMEDOUT; |
| 1040 | goto out; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1041 | } |
| 1042 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1043 | ret = readl(smi_reg); |
| 1044 | if (!(ret & SMI_READ_VALID)) { |
| 1045 | printk("%s: SMI bus read not valid\n", mp->dev->name); |
| 1046 | ret = -ENODEV; |
| 1047 | goto out; |
| 1048 | } |
| 1049 | |
| 1050 | ret &= 0xffff; |
| 1051 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1052 | out: |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1053 | mutex_unlock(&msp->phy_lock); |
| 1054 | |
| 1055 | return ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1056 | } |
| 1057 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1058 | static int smi_reg_write(struct mv643xx_eth_private *mp, unsigned int addr, |
| 1059 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1060 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1061 | struct mv643xx_eth_shared_private *msp = mp->shared_smi; |
| 1062 | void __iomem *smi_reg = msp->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1063 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1064 | mutex_lock(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1065 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1066 | if (smi_wait_ready(msp)) { |
| 1067 | printk("%s: SMI bus busy timeout\n", mp->dev->name); |
| 1068 | mutex_unlock(&msp->phy_lock); |
| 1069 | return -ETIMEDOUT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1070 | } |
| 1071 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1072 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 1073 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1074 | |
| 1075 | mutex_unlock(&msp->phy_lock); |
| 1076 | |
| 1077 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1078 | } |
| 1079 | |
| 1080 | |
| 1081 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1082 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1083 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1084 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1085 | } |
| 1086 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1087 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1088 | { |
| 1089 | int i; |
| 1090 | |
| 1091 | for (i = 0; i < 0x80; i += 4) |
| 1092 | mib_read(mp, i); |
| 1093 | } |
| 1094 | |
| 1095 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1096 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1097 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1098 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1099 | p->good_octets_received += mib_read(mp, 0x00); |
| 1100 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 1101 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1102 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1103 | p->good_frames_received += mib_read(mp, 0x10); |
| 1104 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1105 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1106 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1107 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1108 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1109 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1110 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1111 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1112 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1113 | p->good_octets_sent += mib_read(mp, 0x38); |
| 1114 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1115 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1116 | p->excessive_collision += mib_read(mp, 0x44); |
| 1117 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1118 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1119 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1120 | p->fc_sent += mib_read(mp, 0x54); |
| 1121 | p->good_fc_received += mib_read(mp, 0x58); |
| 1122 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1123 | p->undersize_received += mib_read(mp, 0x60); |
| 1124 | p->fragments_received += mib_read(mp, 0x64); |
| 1125 | p->oversize_received += mib_read(mp, 0x68); |
| 1126 | p->jabber_received += mib_read(mp, 0x6c); |
| 1127 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1128 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1129 | p->collision += mib_read(mp, 0x78); |
| 1130 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1131 | } |
| 1132 | |
| 1133 | |
| 1134 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1135 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1136 | char stat_string[ETH_GSTRING_LEN]; |
| 1137 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1138 | int netdev_off; |
| 1139 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1140 | }; |
| 1141 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1142 | #define SSTAT(m) \ |
| 1143 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1144 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1145 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1146 | #define MIBSTAT(m) \ |
| 1147 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1148 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1149 | |
| 1150 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1151 | SSTAT(rx_packets), |
| 1152 | SSTAT(tx_packets), |
| 1153 | SSTAT(rx_bytes), |
| 1154 | SSTAT(tx_bytes), |
| 1155 | SSTAT(rx_errors), |
| 1156 | SSTAT(tx_errors), |
| 1157 | SSTAT(rx_dropped), |
| 1158 | SSTAT(tx_dropped), |
| 1159 | MIBSTAT(good_octets_received), |
| 1160 | MIBSTAT(bad_octets_received), |
| 1161 | MIBSTAT(internal_mac_transmit_err), |
| 1162 | MIBSTAT(good_frames_received), |
| 1163 | MIBSTAT(bad_frames_received), |
| 1164 | MIBSTAT(broadcast_frames_received), |
| 1165 | MIBSTAT(multicast_frames_received), |
| 1166 | MIBSTAT(frames_64_octets), |
| 1167 | MIBSTAT(frames_65_to_127_octets), |
| 1168 | MIBSTAT(frames_128_to_255_octets), |
| 1169 | MIBSTAT(frames_256_to_511_octets), |
| 1170 | MIBSTAT(frames_512_to_1023_octets), |
| 1171 | MIBSTAT(frames_1024_to_max_octets), |
| 1172 | MIBSTAT(good_octets_sent), |
| 1173 | MIBSTAT(good_frames_sent), |
| 1174 | MIBSTAT(excessive_collision), |
| 1175 | MIBSTAT(multicast_frames_sent), |
| 1176 | MIBSTAT(broadcast_frames_sent), |
| 1177 | MIBSTAT(unrec_mac_control_received), |
| 1178 | MIBSTAT(fc_sent), |
| 1179 | MIBSTAT(good_fc_received), |
| 1180 | MIBSTAT(bad_fc_received), |
| 1181 | MIBSTAT(undersize_received), |
| 1182 | MIBSTAT(fragments_received), |
| 1183 | MIBSTAT(oversize_received), |
| 1184 | MIBSTAT(jabber_received), |
| 1185 | MIBSTAT(mac_receive_error), |
| 1186 | MIBSTAT(bad_crc_event), |
| 1187 | MIBSTAT(collision), |
| 1188 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1189 | }; |
| 1190 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1191 | 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] | 1192 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1193 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1194 | int err; |
| 1195 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1196 | err = mii_ethtool_gset(&mp->mii, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1197 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1198 | /* |
| 1199 | * The MAC does not support 1000baseT_Half. |
| 1200 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1201 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1202 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1203 | |
| 1204 | return err; |
| 1205 | } |
| 1206 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1207 | static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1208 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1209 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1210 | u32 port_status; |
| 1211 | |
| 1212 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1213 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1214 | cmd->supported = SUPPORTED_MII; |
| 1215 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1216 | switch (port_status & PORT_SPEED_MASK) { |
| 1217 | case PORT_SPEED_10: |
| 1218 | cmd->speed = SPEED_10; |
| 1219 | break; |
| 1220 | case PORT_SPEED_100: |
| 1221 | cmd->speed = SPEED_100; |
| 1222 | break; |
| 1223 | case PORT_SPEED_1000: |
| 1224 | cmd->speed = SPEED_1000; |
| 1225 | break; |
| 1226 | default: |
| 1227 | cmd->speed = -1; |
| 1228 | break; |
| 1229 | } |
| 1230 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1231 | cmd->port = PORT_MII; |
| 1232 | cmd->phy_address = 0; |
| 1233 | cmd->transceiver = XCVR_INTERNAL; |
| 1234 | cmd->autoneg = AUTONEG_DISABLE; |
| 1235 | cmd->maxtxpkt = 1; |
| 1236 | cmd->maxrxpkt = 1; |
| 1237 | |
| 1238 | return 0; |
| 1239 | } |
| 1240 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1241 | 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] | 1242 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1243 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1244 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1245 | /* |
| 1246 | * The MAC does not support 1000baseT_Half. |
| 1247 | */ |
| 1248 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1249 | |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 1250 | return mii_ethtool_sset(&mp->mii, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1251 | } |
| 1252 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1253 | static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1254 | { |
| 1255 | return -EINVAL; |
| 1256 | } |
| 1257 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1258 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1259 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1260 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1261 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1262 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1263 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1264 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1265 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1266 | } |
| 1267 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1268 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1269 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1270 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1271 | |
| 1272 | return mii_nway_restart(&mp->mii); |
| 1273 | } |
| 1274 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1275 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
| 1276 | { |
| 1277 | return -EINVAL; |
| 1278 | } |
| 1279 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1280 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1281 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1282 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1283 | |
| 1284 | return mii_link_ok(&mp->mii); |
| 1285 | } |
| 1286 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1287 | static u32 mv643xx_eth_get_link_phyless(struct net_device *dev) |
| 1288 | { |
| 1289 | return 1; |
| 1290 | } |
| 1291 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1292 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1293 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1294 | { |
| 1295 | int i; |
| 1296 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1297 | if (stringset == ETH_SS_STATS) { |
| 1298 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1299 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1300 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1301 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1302 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1303 | } |
| 1304 | } |
| 1305 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1306 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1307 | struct ethtool_stats *stats, |
| 1308 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1309 | { |
Lennert Buytenhek | b987384 | 2008-08-24 05:59:16 +0200 | [diff] [blame] | 1310 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1311 | int i; |
| 1312 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1313 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1314 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1315 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1316 | const struct mv643xx_eth_stats *stat; |
| 1317 | void *p; |
| 1318 | |
| 1319 | stat = mv643xx_eth_stats + i; |
| 1320 | |
| 1321 | if (stat->netdev_off >= 0) |
| 1322 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1323 | else |
| 1324 | p = ((void *)mp) + stat->mp_off; |
| 1325 | |
| 1326 | data[i] = (stat->sizeof_stat == 8) ? |
| 1327 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1328 | } |
| 1329 | } |
| 1330 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1331 | 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] | 1332 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1333 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1334 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1335 | |
| 1336 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1337 | } |
| 1338 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1339 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1340 | .get_settings = mv643xx_eth_get_settings, |
| 1341 | .set_settings = mv643xx_eth_set_settings, |
| 1342 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1343 | .nway_reset = mv643xx_eth_nway_reset, |
| 1344 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1345 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1346 | .get_strings = mv643xx_eth_get_strings, |
| 1347 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1348 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1349 | }; |
| 1350 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1351 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
| 1352 | .get_settings = mv643xx_eth_get_settings_phyless, |
| 1353 | .set_settings = mv643xx_eth_set_settings_phyless, |
| 1354 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1355 | .nway_reset = mv643xx_eth_nway_reset_phyless, |
| 1356 | .get_link = mv643xx_eth_get_link_phyless, |
| 1357 | .set_sg = ethtool_op_set_sg, |
| 1358 | .get_strings = mv643xx_eth_get_strings, |
| 1359 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1360 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1361 | }; |
| 1362 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1363 | |
| 1364 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1365 | 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] | 1366 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1367 | unsigned int mac_h; |
| 1368 | unsigned int mac_l; |
| 1369 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1370 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1371 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1372 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1373 | addr[0] = (mac_h >> 24) & 0xff; |
| 1374 | addr[1] = (mac_h >> 16) & 0xff; |
| 1375 | addr[2] = (mac_h >> 8) & 0xff; |
| 1376 | addr[3] = mac_h & 0xff; |
| 1377 | addr[4] = (mac_l >> 8) & 0xff; |
| 1378 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1379 | } |
| 1380 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1381 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
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 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1384 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1385 | for (i = 0; i < 0x100; i += 4) { |
| 1386 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1387 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1388 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1389 | |
| 1390 | for (i = 0; i < 0x10; i += 4) |
| 1391 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1392 | } |
| 1393 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1394 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1395 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1396 | { |
| 1397 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1398 | |
| 1399 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1400 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1401 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1402 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1403 | } |
| 1404 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1405 | 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] | 1406 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1407 | unsigned int mac_h; |
| 1408 | unsigned int mac_l; |
| 1409 | int table; |
| 1410 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1411 | mac_l = (addr[4] << 8) | addr[5]; |
| 1412 | 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] | 1413 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1414 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1415 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1416 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1417 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1418 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1419 | } |
| 1420 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1421 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1422 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1423 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1424 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1425 | /* +2 is for the offset of the HW addr type */ |
| 1426 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1427 | |
| 1428 | init_mac_tables(mp); |
| 1429 | uc_addr_set(mp, dev->dev_addr); |
| 1430 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1431 | return 0; |
| 1432 | } |
| 1433 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1434 | static int addr_crc(unsigned char *addr) |
| 1435 | { |
| 1436 | int crc = 0; |
| 1437 | int i; |
| 1438 | |
| 1439 | for (i = 0; i < 6; i++) { |
| 1440 | int j; |
| 1441 | |
| 1442 | crc = (crc ^ addr[i]) << 8; |
| 1443 | for (j = 7; j >= 0; j--) { |
| 1444 | if (crc & (0x100 << j)) |
| 1445 | crc ^= 0x107 << j; |
| 1446 | } |
| 1447 | } |
| 1448 | |
| 1449 | return crc; |
| 1450 | } |
| 1451 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1452 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1453 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1454 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1455 | u32 port_config; |
| 1456 | struct dev_addr_list *addr; |
| 1457 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1458 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1459 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1460 | if (dev->flags & IFF_PROMISC) |
| 1461 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1462 | else |
| 1463 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1464 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1465 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1466 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1467 | int port_num = mp->port_num; |
| 1468 | u32 accept = 0x01010101; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1469 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1470 | for (i = 0; i < 0x100; i += 4) { |
| 1471 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1472 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1473 | } |
| 1474 | return; |
| 1475 | } |
| 1476 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1477 | for (i = 0; i < 0x100; i += 4) { |
| 1478 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1479 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1480 | } |
| 1481 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1482 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1483 | u8 *a = addr->da_addr; |
| 1484 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1485 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1486 | if (addr->da_addrlen != 6) |
| 1487 | continue; |
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 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1490 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1491 | set_filter_table_entry(mp, table, a[5]); |
| 1492 | } else { |
| 1493 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1494 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1495 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1496 | set_filter_table_entry(mp, table, crc); |
| 1497 | } |
| 1498 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1499 | } |
| 1500 | |
| 1501 | |
| 1502 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1503 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1504 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1505 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1506 | struct rx_desc *rx_desc; |
| 1507 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1508 | int i; |
| 1509 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1510 | rxq->index = index; |
| 1511 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1512 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1513 | |
| 1514 | rxq->rx_desc_count = 0; |
| 1515 | rxq->rx_curr_desc = 0; |
| 1516 | rxq->rx_used_desc = 0; |
| 1517 | |
| 1518 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1519 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1520 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1521 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1522 | mp->rx_desc_sram_size); |
| 1523 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1524 | } else { |
| 1525 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1526 | &rxq->rx_desc_dma, |
| 1527 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1528 | } |
| 1529 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1530 | if (rxq->rx_desc_area == NULL) { |
| 1531 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1532 | "can't allocate rx ring (%d bytes)\n", size); |
| 1533 | goto out; |
| 1534 | } |
| 1535 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1536 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1537 | rxq->rx_desc_area_size = size; |
| 1538 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1539 | GFP_KERNEL); |
| 1540 | if (rxq->rx_skb == NULL) { |
| 1541 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1542 | "can't allocate rx skb ring\n"); |
| 1543 | goto out_free; |
| 1544 | } |
| 1545 | |
| 1546 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1547 | for (i = 0; i < rxq->rx_ring_size; i++) { |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1548 | int nexti; |
| 1549 | |
| 1550 | nexti = i + 1; |
| 1551 | if (nexti == rxq->rx_ring_size) |
| 1552 | nexti = 0; |
| 1553 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1554 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1555 | nexti * sizeof(struct rx_desc); |
| 1556 | } |
| 1557 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1558 | return 0; |
| 1559 | |
| 1560 | |
| 1561 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1562 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1563 | iounmap(rxq->rx_desc_area); |
| 1564 | else |
| 1565 | dma_free_coherent(NULL, size, |
| 1566 | rxq->rx_desc_area, |
| 1567 | rxq->rx_desc_dma); |
| 1568 | |
| 1569 | out: |
| 1570 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1571 | } |
| 1572 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1573 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1574 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1575 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1576 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1577 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1578 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1579 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1580 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1581 | if (rxq->rx_skb[i]) { |
| 1582 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1583 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1584 | } |
| 1585 | } |
| 1586 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1587 | if (rxq->rx_desc_count) { |
| 1588 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1589 | "error freeing rx ring -- %d skbs stuck\n", |
| 1590 | rxq->rx_desc_count); |
| 1591 | } |
| 1592 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1593 | if (rxq->index == mp->rxq_primary && |
| 1594 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1595 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1596 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1597 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1598 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1599 | |
| 1600 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1601 | } |
| 1602 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1603 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1604 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1605 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1606 | struct tx_desc *tx_desc; |
| 1607 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1608 | int i; |
| 1609 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1610 | txq->index = index; |
| 1611 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1612 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1613 | |
| 1614 | txq->tx_desc_count = 0; |
| 1615 | txq->tx_curr_desc = 0; |
| 1616 | txq->tx_used_desc = 0; |
| 1617 | |
| 1618 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1619 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1620 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1621 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1622 | mp->tx_desc_sram_size); |
| 1623 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1624 | } else { |
| 1625 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1626 | &txq->tx_desc_dma, |
| 1627 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1628 | } |
| 1629 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1630 | if (txq->tx_desc_area == NULL) { |
| 1631 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1632 | "can't allocate tx ring (%d bytes)\n", size); |
| 1633 | goto out; |
| 1634 | } |
| 1635 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1636 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1637 | txq->tx_desc_area_size = size; |
| 1638 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1639 | GFP_KERNEL); |
| 1640 | if (txq->tx_skb == NULL) { |
| 1641 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1642 | "can't allocate tx skb ring\n"); |
| 1643 | goto out_free; |
| 1644 | } |
| 1645 | |
| 1646 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1647 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1648 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1649 | int nexti; |
| 1650 | |
| 1651 | nexti = i + 1; |
| 1652 | if (nexti == txq->tx_ring_size) |
| 1653 | nexti = 0; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1654 | |
| 1655 | txd->cmd_sts = 0; |
| 1656 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1657 | nexti * sizeof(struct tx_desc); |
| 1658 | } |
| 1659 | |
| 1660 | return 0; |
| 1661 | |
| 1662 | |
| 1663 | out_free: |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1664 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1665 | iounmap(txq->tx_desc_area); |
| 1666 | else |
| 1667 | dma_free_coherent(NULL, size, |
| 1668 | txq->tx_desc_area, |
| 1669 | txq->tx_desc_dma); |
| 1670 | |
| 1671 | out: |
| 1672 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1673 | } |
| 1674 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1675 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1676 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1677 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1678 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1679 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1680 | spin_lock_irqsave(&mp->lock, flags); |
| 1681 | while (txq->tx_desc_count > 0) { |
| 1682 | int tx_index; |
| 1683 | struct tx_desc *desc; |
| 1684 | u32 cmd_sts; |
| 1685 | struct sk_buff *skb; |
| 1686 | dma_addr_t addr; |
| 1687 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1688 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1689 | tx_index = txq->tx_used_desc; |
| 1690 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1691 | cmd_sts = desc->cmd_sts; |
| 1692 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1693 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 1694 | if (!force) |
| 1695 | break; |
| 1696 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 1697 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1698 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1699 | txq->tx_used_desc = tx_index + 1; |
| 1700 | if (txq->tx_used_desc == txq->tx_ring_size) |
| 1701 | txq->tx_used_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1702 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1703 | |
| 1704 | addr = desc->buf_ptr; |
| 1705 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1706 | skb = txq->tx_skb[tx_index]; |
| 1707 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1708 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1709 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1710 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1711 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1712 | } |
| 1713 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1714 | /* |
| 1715 | * Drop mp->lock while we free the skb. |
| 1716 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1717 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1718 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1719 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1720 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1721 | else |
| 1722 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1723 | |
| 1724 | if (skb) |
| 1725 | dev_kfree_skb_irq(skb); |
| 1726 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1727 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1728 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1729 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1730 | } |
| 1731 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1732 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1733 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1734 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1735 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1736 | txq_disable(txq); |
| 1737 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1738 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1739 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1740 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1741 | if (txq->index == mp->txq_primary && |
| 1742 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1743 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1744 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1745 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1746 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1747 | |
| 1748 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1749 | } |
| 1750 | |
| 1751 | |
| 1752 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1753 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1754 | { |
| 1755 | struct net_device *dev = mp->dev; |
| 1756 | u32 port_status; |
| 1757 | int speed; |
| 1758 | int duplex; |
| 1759 | int fc; |
| 1760 | |
| 1761 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1762 | if (!(port_status & LINK_UP)) { |
| 1763 | if (netif_carrier_ok(dev)) { |
| 1764 | int i; |
| 1765 | |
| 1766 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 1767 | |
| 1768 | netif_carrier_off(dev); |
| 1769 | netif_stop_queue(dev); |
| 1770 | |
| 1771 | for (i = 0; i < 8; i++) { |
| 1772 | struct tx_queue *txq = mp->txq + i; |
| 1773 | |
| 1774 | if (mp->txq_mask & (1 << i)) { |
| 1775 | txq_reclaim(txq, 1); |
| 1776 | txq_reset_hw_ptr(txq); |
| 1777 | } |
| 1778 | } |
| 1779 | } |
| 1780 | return; |
| 1781 | } |
| 1782 | |
| 1783 | switch (port_status & PORT_SPEED_MASK) { |
| 1784 | case PORT_SPEED_10: |
| 1785 | speed = 10; |
| 1786 | break; |
| 1787 | case PORT_SPEED_100: |
| 1788 | speed = 100; |
| 1789 | break; |
| 1790 | case PORT_SPEED_1000: |
| 1791 | speed = 1000; |
| 1792 | break; |
| 1793 | default: |
| 1794 | speed = -1; |
| 1795 | break; |
| 1796 | } |
| 1797 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1798 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1799 | |
| 1800 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " |
| 1801 | "flow control %sabled\n", dev->name, |
| 1802 | speed, duplex ? "full" : "half", |
| 1803 | fc ? "en" : "dis"); |
| 1804 | |
| 1805 | if (!netif_carrier_ok(dev)) { |
| 1806 | netif_carrier_on(dev); |
| 1807 | netif_wake_queue(dev); |
| 1808 | } |
| 1809 | } |
| 1810 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1811 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1812 | { |
| 1813 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1814 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1815 | u32 int_cause; |
| 1816 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1817 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1818 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & |
| 1819 | (INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1820 | if (int_cause == 0) |
| 1821 | return IRQ_NONE; |
| 1822 | |
| 1823 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1824 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1825 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1826 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1827 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1828 | } |
| 1829 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1830 | if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) |
| 1831 | handle_link_event(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1832 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1833 | /* |
| 1834 | * RxBuffer or RxError set for any of the 8 queues? |
| 1835 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1836 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 819ddca | 2008-08-24 02:45:32 +0200 | [diff] [blame] | 1837 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_RX)); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1838 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1839 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1840 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 1841 | napi_schedule(&mp->napi); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1842 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1843 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1844 | /* |
| 1845 | * TxBuffer or TxError set for any of the 8 queues? |
| 1846 | */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1847 | if (int_cause_ext & INT_EXT_TX) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1848 | int i; |
| 1849 | |
| 1850 | for (i = 0; i < 8; i++) |
| 1851 | if (mp->txq_mask & (1 << i)) |
| 1852 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1853 | |
| 1854 | /* |
| 1855 | * Enough space again in the primary TX queue for a |
| 1856 | * full packet? |
| 1857 | */ |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1858 | if (netif_carrier_ok(dev)) { |
| 1859 | spin_lock(&mp->lock); |
| 1860 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
| 1861 | spin_unlock(&mp->lock); |
| 1862 | } |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1863 | } |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1864 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1865 | /* |
| 1866 | * Any TxEnd interrupts? |
| 1867 | */ |
| 1868 | if (int_cause & INT_TX_END) { |
| 1869 | int i; |
| 1870 | |
| 1871 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_TX_END)); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1872 | |
| 1873 | spin_lock(&mp->lock); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1874 | for (i = 0; i < 8; i++) { |
| 1875 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1876 | u32 hw_desc_ptr; |
| 1877 | u32 expected_ptr; |
| 1878 | |
| 1879 | if ((int_cause & (INT_TX_END_0 << i)) == 0) |
| 1880 | continue; |
| 1881 | |
| 1882 | hw_desc_ptr = |
| 1883 | rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, i)); |
| 1884 | expected_ptr = (u32)txq->tx_desc_dma + |
| 1885 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1886 | |
| 1887 | if (hw_desc_ptr != expected_ptr) |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1888 | txq_enable(txq); |
| 1889 | } |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1890 | spin_unlock(&mp->lock); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1891 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1892 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1893 | return IRQ_HANDLED; |
| 1894 | } |
| 1895 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1896 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1897 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1898 | int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1899 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1900 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 1901 | if (data < 0) |
| 1902 | return; |
| 1903 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1904 | data |= BMCR_RESET; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1905 | if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data) < 0) |
| 1906 | return; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1907 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1908 | do { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1909 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 1910 | } while (data >= 0 && data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1911 | } |
| 1912 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1913 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1914 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1915 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1916 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1917 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1918 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1919 | * Perform PHY reset, if there is a PHY. |
| 1920 | */ |
| 1921 | if (mp->phy_addr != -1) { |
| 1922 | struct ethtool_cmd cmd; |
| 1923 | |
| 1924 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 1925 | phy_reset(mp); |
| 1926 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 1927 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1928 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1929 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1930 | * Configure basic link parameters. |
| 1931 | */ |
| 1932 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1933 | |
| 1934 | pscr |= SERIAL_PORT_ENABLE; |
| 1935 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1936 | |
| 1937 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
| 1938 | if (mp->phy_addr == -1) |
| 1939 | pscr |= FORCE_LINK_PASS; |
| 1940 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1941 | |
| 1942 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1943 | |
| 1944 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1945 | * Configure TX path and queues. |
| 1946 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1947 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1948 | for (i = 0; i < 8; i++) { |
| 1949 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1950 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1951 | if ((mp->txq_mask & (1 << i)) == 0) |
| 1952 | continue; |
| 1953 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1954 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1955 | txq_set_rate(txq, 1000000000, 16777216); |
| 1956 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1957 | } |
| 1958 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1959 | /* |
| 1960 | * Add configured unicast address to address filter table. |
| 1961 | */ |
| 1962 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1963 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1964 | /* |
| 1965 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1966 | * frames to RX queue #0. |
| 1967 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1968 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1969 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1970 | /* |
| 1971 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1972 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1973 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1974 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1975 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1976 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1977 | */ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1978 | for (i = 0; i < 8; i++) { |
| 1979 | struct rx_queue *rxq = mp->rxq + i; |
| 1980 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1981 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1982 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1983 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1984 | continue; |
| 1985 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1986 | addr = (u32)rxq->rx_desc_dma; |
| 1987 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1988 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1989 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1990 | rxq_enable(rxq); |
| 1991 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1992 | } |
| 1993 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1994 | 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] | 1995 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1996 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1997 | u32 val; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1998 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1999 | val = rdl(mp, SDMA_CONFIG(mp->port_num)); |
| 2000 | if (mp->shared->extended_rx_coal_limit) { |
| 2001 | if (coal > 0xffff) |
| 2002 | coal = 0xffff; |
| 2003 | val &= ~0x023fff80; |
| 2004 | val |= (coal & 0x8000) << 10; |
| 2005 | val |= (coal & 0x7fff) << 7; |
| 2006 | } else { |
| 2007 | if (coal > 0x3fff) |
| 2008 | coal = 0x3fff; |
| 2009 | val &= ~0x003fff00; |
| 2010 | val |= (coal & 0x3fff) << 8; |
| 2011 | } |
| 2012 | wrl(mp, SDMA_CONFIG(mp->port_num), val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2013 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2014 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2015 | 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] | 2016 | { |
| 2017 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 2018 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2019 | if (coal > 0x3fff) |
| 2020 | coal = 0x3fff; |
| 2021 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2022 | } |
| 2023 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2024 | static int mv643xx_eth_open(struct net_device *dev) |
| 2025 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2026 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2027 | int err; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2028 | int oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2029 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2030 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2031 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 2032 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 2033 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2034 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2035 | err = request_irq(dev->irq, mv643xx_eth_irq, |
Lennert Buytenhek | 2a1867a | 2008-08-23 23:43:38 +0200 | [diff] [blame] | 2036 | IRQF_SHARED, dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2037 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2038 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2039 | return -EAGAIN; |
| 2040 | } |
| 2041 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2042 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2043 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2044 | napi_enable(&mp->napi); |
| 2045 | |
| 2046 | oom = 0; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2047 | for (i = 0; i < 8; i++) { |
| 2048 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 2049 | continue; |
| 2050 | |
| 2051 | err = rxq_init(mp, i); |
| 2052 | if (err) { |
| 2053 | while (--i >= 0) |
| 2054 | if (mp->rxq_mask & (1 << i)) |
| 2055 | rxq_deinit(mp->rxq + i); |
| 2056 | goto out; |
| 2057 | } |
| 2058 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2059 | rxq_refill(mp->rxq + i, INT_MAX, &oom); |
| 2060 | } |
| 2061 | |
| 2062 | if (oom) { |
| 2063 | mp->rx_oom.expires = jiffies + (HZ / 10); |
| 2064 | add_timer(&mp->rx_oom); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2065 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2066 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2067 | for (i = 0; i < 8; i++) { |
| 2068 | if ((mp->txq_mask & (1 << i)) == 0) |
| 2069 | continue; |
| 2070 | |
| 2071 | err = txq_init(mp, i); |
| 2072 | if (err) { |
| 2073 | while (--i >= 0) |
| 2074 | if (mp->txq_mask & (1 << i)) |
| 2075 | txq_deinit(mp->txq + i); |
| 2076 | goto out_free; |
| 2077 | } |
| 2078 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2079 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2080 | netif_carrier_off(dev); |
| 2081 | netif_stop_queue(dev); |
| 2082 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2083 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2084 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2085 | set_rx_coal(mp, 0); |
| 2086 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2087 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2088 | wrl(mp, INT_MASK_EXT(mp->port_num), |
| 2089 | INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2090 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 2091 | 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] | 2092 | |
| 2093 | return 0; |
| 2094 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2095 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2096 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2097 | for (i = 0; i < 8; i++) |
| 2098 | if (mp->rxq_mask & (1 << i)) |
| 2099 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2100 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2101 | free_irq(dev->irq, dev); |
| 2102 | |
| 2103 | return err; |
| 2104 | } |
| 2105 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2106 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2107 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2108 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2109 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2110 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2111 | for (i = 0; i < 8; i++) { |
| 2112 | if (mp->rxq_mask & (1 << i)) |
| 2113 | rxq_disable(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2114 | if (mp->txq_mask & (1 << i)) |
| 2115 | txq_disable(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2116 | } |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2117 | |
| 2118 | while (1) { |
| 2119 | u32 ps = rdl(mp, PORT_STATUS(mp->port_num)); |
| 2120 | |
| 2121 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2122 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2123 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2124 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2125 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2126 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2127 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2128 | data &= ~(SERIAL_PORT_ENABLE | |
| 2129 | DO_NOT_FORCE_LINK_FAIL | |
| 2130 | FORCE_LINK_PASS); |
| 2131 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2132 | } |
| 2133 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2134 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2135 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2136 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2137 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2138 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2139 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2140 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2141 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2142 | napi_disable(&mp->napi); |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2143 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2144 | del_timer_sync(&mp->rx_oom); |
| 2145 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2146 | netif_carrier_off(dev); |
| 2147 | netif_stop_queue(dev); |
| 2148 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2149 | free_irq(dev->irq, dev); |
| 2150 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2151 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2152 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2153 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2154 | for (i = 0; i < 8; i++) { |
| 2155 | if (mp->rxq_mask & (1 << i)) |
| 2156 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2157 | if (mp->txq_mask & (1 << i)) |
| 2158 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2159 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2160 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2161 | return 0; |
| 2162 | } |
| 2163 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2164 | 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] | 2165 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2166 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2167 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2168 | if (mp->phy_addr != -1) |
| 2169 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 2170 | |
| 2171 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2172 | } |
| 2173 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2174 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2175 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2176 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2177 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2178 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2179 | return -EINVAL; |
| 2180 | |
| 2181 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2182 | tx_set_rate(mp, 1000000000, 16777216); |
| 2183 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2184 | if (!netif_running(dev)) |
| 2185 | return 0; |
| 2186 | |
| 2187 | /* |
| 2188 | * Stop and then re-open the interface. This will allocate RX |
| 2189 | * skbs of the new MTU. |
| 2190 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2191 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2192 | */ |
| 2193 | mv643xx_eth_stop(dev); |
| 2194 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2195 | dev_printk(KERN_ERR, &dev->dev, |
| 2196 | "fatal error on re-opening device after " |
| 2197 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2198 | } |
| 2199 | |
| 2200 | return 0; |
| 2201 | } |
| 2202 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2203 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2204 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2205 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2206 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2207 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2208 | if (netif_running(mp->dev)) { |
| 2209 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2210 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2211 | port_reset(mp); |
| 2212 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2213 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2214 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2215 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2216 | } |
| 2217 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2218 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2219 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2220 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2221 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2222 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2223 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2224 | schedule_work(&mp->tx_timeout_task); |
| 2225 | } |
| 2226 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2227 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2228 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2229 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2230 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2231 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2232 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2233 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2234 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2235 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2236 | |
Lennert Buytenhek | f2ca60f | 2008-07-07 00:03:00 +0200 | [diff] [blame] | 2237 | 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] | 2238 | } |
| 2239 | #endif |
| 2240 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2241 | 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] | 2242 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2243 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2244 | return smi_reg_read(mp, addr, reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2245 | } |
| 2246 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2247 | 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] | 2248 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2249 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2250 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2251 | } |
| 2252 | |
| 2253 | |
| 2254 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2255 | static void |
| 2256 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2257 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2258 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2259 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2260 | u32 win_enable; |
| 2261 | u32 win_protect; |
| 2262 | int i; |
| 2263 | |
| 2264 | for (i = 0; i < 6; i++) { |
| 2265 | writel(0, base + WINDOW_BASE(i)); |
| 2266 | writel(0, base + WINDOW_SIZE(i)); |
| 2267 | if (i < 4) |
| 2268 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2269 | } |
| 2270 | |
| 2271 | win_enable = 0x3f; |
| 2272 | win_protect = 0; |
| 2273 | |
| 2274 | for (i = 0; i < dram->num_cs; i++) { |
| 2275 | struct mbus_dram_window *cs = dram->cs + i; |
| 2276 | |
| 2277 | writel((cs->base & 0xffff0000) | |
| 2278 | (cs->mbus_attr << 8) | |
| 2279 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2280 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2281 | |
| 2282 | win_enable &= ~(1 << i); |
| 2283 | win_protect |= 3 << (2 * i); |
| 2284 | } |
| 2285 | |
| 2286 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2287 | msp->win_protect = win_protect; |
| 2288 | } |
| 2289 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2290 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2291 | { |
| 2292 | /* |
| 2293 | * Check whether we have a 14-bit coal limit field in bits |
| 2294 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2295 | * SDMA config register. |
| 2296 | */ |
| 2297 | writel(0x02000000, msp->base + SDMA_CONFIG(0)); |
| 2298 | if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) |
| 2299 | msp->extended_rx_coal_limit = 1; |
| 2300 | else |
| 2301 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2302 | |
| 2303 | /* |
| 2304 | * Check whether the TX rate control registers are in the |
| 2305 | * old or the new place. |
| 2306 | */ |
| 2307 | writel(1, msp->base + TX_BW_MTU_MOVED(0)); |
| 2308 | if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) |
| 2309 | msp->tx_bw_control_moved = 1; |
| 2310 | else |
| 2311 | msp->tx_bw_control_moved = 0; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2312 | } |
| 2313 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2314 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2315 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2316 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2317 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2318 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2319 | struct resource *res; |
| 2320 | int ret; |
| 2321 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2322 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | 7dde154 | 2008-07-15 12:20:30 +0200 | [diff] [blame] | 2323 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
| 2324 | "driver version %s\n", mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2325 | |
| 2326 | ret = -EINVAL; |
| 2327 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2328 | if (res == NULL) |
| 2329 | goto out; |
| 2330 | |
| 2331 | ret = -ENOMEM; |
| 2332 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2333 | if (msp == NULL) |
| 2334 | goto out; |
| 2335 | memset(msp, 0, sizeof(*msp)); |
| 2336 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2337 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2338 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2339 | goto out_free; |
| 2340 | |
Lennert Buytenhek | 2b3ba0e | 2008-08-24 05:41:09 +0200 | [diff] [blame] | 2341 | mutex_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2342 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2343 | msp->err_interrupt = NO_IRQ; |
| 2344 | init_waitqueue_head(&msp->smi_busy_wait); |
| 2345 | |
| 2346 | /* |
| 2347 | * Check whether the error interrupt is hooked up. |
| 2348 | */ |
| 2349 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2350 | if (res != NULL) { |
| 2351 | int err; |
| 2352 | |
| 2353 | err = request_irq(res->start, mv643xx_eth_err_irq, |
| 2354 | IRQF_SHARED, "mv643xx_eth", msp); |
| 2355 | if (!err) { |
| 2356 | writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK); |
| 2357 | msp->err_interrupt = res->start; |
| 2358 | } |
| 2359 | } |
| 2360 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2361 | /* |
| 2362 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2363 | */ |
| 2364 | if (pd != NULL && pd->dram != NULL) |
| 2365 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2366 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2367 | /* |
| 2368 | * Detect hardware parameters. |
| 2369 | */ |
| 2370 | 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] | 2371 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2372 | |
| 2373 | platform_set_drvdata(pdev, msp); |
| 2374 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2375 | return 0; |
| 2376 | |
| 2377 | out_free: |
| 2378 | kfree(msp); |
| 2379 | out: |
| 2380 | return ret; |
| 2381 | } |
| 2382 | |
| 2383 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2384 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2385 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2386 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2387 | if (msp->err_interrupt != NO_IRQ) |
| 2388 | free_irq(msp->err_interrupt, msp); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2389 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2390 | kfree(msp); |
| 2391 | |
| 2392 | return 0; |
| 2393 | } |
| 2394 | |
| 2395 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2396 | .probe = mv643xx_eth_shared_probe, |
| 2397 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2398 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2399 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2400 | .owner = THIS_MODULE, |
| 2401 | }, |
| 2402 | }; |
| 2403 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2404 | 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] | 2405 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2406 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2407 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2408 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2409 | data = rdl(mp, PHY_ADDR); |
| 2410 | data &= ~(0x1f << addr_shift); |
| 2411 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2412 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2413 | } |
| 2414 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2415 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2416 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2417 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2418 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2419 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2420 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2421 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2422 | } |
| 2423 | |
| 2424 | static void set_params(struct mv643xx_eth_private *mp, |
| 2425 | struct mv643xx_eth_platform_data *pd) |
| 2426 | { |
| 2427 | struct net_device *dev = mp->dev; |
| 2428 | |
| 2429 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2430 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2431 | else |
| 2432 | uc_addr_get(mp, dev->dev_addr); |
| 2433 | |
| 2434 | if (pd->phy_addr == -1) { |
| 2435 | mp->shared_smi = NULL; |
| 2436 | mp->phy_addr = -1; |
| 2437 | } else { |
| 2438 | mp->shared_smi = mp->shared; |
| 2439 | if (pd->shared_smi != NULL) |
| 2440 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2441 | |
| 2442 | if (pd->force_phy_addr || pd->phy_addr) { |
| 2443 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2444 | phy_addr_set(mp, mp->phy_addr); |
| 2445 | } else { |
| 2446 | mp->phy_addr = phy_addr_get(mp); |
| 2447 | } |
| 2448 | } |
| 2449 | |
| 2450 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2451 | if (pd->rx_queue_size) |
| 2452 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2453 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2454 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2455 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2456 | if (pd->rx_queue_mask) |
| 2457 | mp->rxq_mask = pd->rx_queue_mask; |
| 2458 | else |
| 2459 | mp->rxq_mask = 0x01; |
| 2460 | mp->rxq_primary = fls(mp->rxq_mask) - 1; |
| 2461 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2462 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2463 | if (pd->tx_queue_size) |
| 2464 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2465 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2466 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2467 | |
| 2468 | if (pd->tx_queue_mask) |
| 2469 | mp->txq_mask = pd->tx_queue_mask; |
| 2470 | else |
| 2471 | mp->txq_mask = 0x01; |
| 2472 | mp->txq_primary = fls(mp->txq_mask) - 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2473 | } |
| 2474 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2475 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2476 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2477 | int data; |
| 2478 | int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2479 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2480 | data = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 2481 | if (data < 0) |
| 2482 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2483 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2484 | if (smi_reg_write(mp, mp->phy_addr, MII_BMCR, data ^ BMCR_ANENABLE) < 0) |
| 2485 | return -ENODEV; |
| 2486 | |
| 2487 | data2 = smi_reg_read(mp, mp->phy_addr, MII_BMCR); |
| 2488 | if (data2 < 0) |
| 2489 | return -ENODEV; |
| 2490 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2491 | if (((data ^ data2) & BMCR_ANENABLE) == 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2492 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2493 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2494 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2495 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2496 | return 0; |
| 2497 | } |
| 2498 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2499 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2500 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2501 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2502 | struct ethtool_cmd cmd; |
| 2503 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2504 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2505 | err = phy_detect(mp); |
| 2506 | if (err) { |
| 2507 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2508 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2509 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2510 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2511 | phy_reset(mp); |
| 2512 | |
| 2513 | mp->mii.phy_id = mp->phy_addr; |
| 2514 | mp->mii.phy_id_mask = 0x3f; |
| 2515 | mp->mii.reg_num_mask = 0x1f; |
| 2516 | mp->mii.dev = mp->dev; |
| 2517 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2518 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2519 | |
| 2520 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2521 | |
| 2522 | memset(&cmd, 0, sizeof(cmd)); |
| 2523 | |
| 2524 | cmd.port = PORT_MII; |
| 2525 | cmd.transceiver = XCVR_INTERNAL; |
| 2526 | cmd.phy_address = mp->phy_addr; |
| 2527 | if (pd->speed == 0) { |
| 2528 | cmd.autoneg = AUTONEG_ENABLE; |
| 2529 | cmd.speed = SPEED_100; |
| 2530 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2531 | ADVERTISED_10baseT_Full | |
| 2532 | ADVERTISED_100baseT_Half | |
| 2533 | ADVERTISED_100baseT_Full; |
| 2534 | if (mp->mii.supports_gmii) |
| 2535 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2536 | } else { |
| 2537 | cmd.autoneg = AUTONEG_DISABLE; |
| 2538 | cmd.speed = pd->speed; |
| 2539 | cmd.duplex = pd->duplex; |
| 2540 | } |
| 2541 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2542 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2543 | |
| 2544 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2545 | } |
| 2546 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2547 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2548 | { |
| 2549 | u32 pscr; |
| 2550 | |
| 2551 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2552 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2553 | pscr &= ~SERIAL_PORT_ENABLE; |
| 2554 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2555 | } |
| 2556 | |
| 2557 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
| 2558 | if (mp->phy_addr == -1) { |
| 2559 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2560 | if (speed == SPEED_1000) |
| 2561 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2562 | else if (speed == SPEED_100) |
| 2563 | pscr |= SET_MII_SPEED_TO_100; |
| 2564 | |
| 2565 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2566 | |
| 2567 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2568 | if (duplex == DUPLEX_FULL) |
| 2569 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2570 | } |
| 2571 | |
| 2572 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2573 | } |
| 2574 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2575 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2576 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2577 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2578 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2579 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2580 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2581 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2582 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2584 | pd = pdev->dev.platform_data; |
| 2585 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2586 | dev_printk(KERN_ERR, &pdev->dev, |
| 2587 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2588 | return -ENODEV; |
| 2589 | } |
| 2590 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2591 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2592 | dev_printk(KERN_ERR, &pdev->dev, |
| 2593 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2594 | return -ENODEV; |
| 2595 | } |
| 2596 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2597 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2598 | if (!dev) |
| 2599 | return -ENOMEM; |
| 2600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2602 | platform_set_drvdata(pdev, mp); |
| 2603 | |
| 2604 | mp->shared = platform_get_drvdata(pd->shared); |
| 2605 | mp->port_num = pd->port_number; |
| 2606 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2607 | mp->dev = dev; |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2608 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2609 | set_params(mp, pd); |
| 2610 | |
| 2611 | spin_lock_init(&mp->lock); |
| 2612 | |
| 2613 | mib_counters_clear(mp); |
| 2614 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2615 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2616 | if (mp->phy_addr != -1) { |
| 2617 | err = phy_init(mp, pd); |
| 2618 | if (err) |
| 2619 | goto out; |
| 2620 | |
| 2621 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2622 | } else { |
| 2623 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); |
| 2624 | } |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2625 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2626 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2627 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128); |
| 2628 | |
| 2629 | init_timer(&mp->rx_oom); |
| 2630 | mp->rx_oom.data = (unsigned long)mp; |
| 2631 | mp->rx_oom.function = oom_timer_wrapper; |
| 2632 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2633 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2634 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2635 | BUG_ON(!res); |
| 2636 | dev->irq = res->start; |
| 2637 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2638 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2639 | dev->open = mv643xx_eth_open; |
| 2640 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2641 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2642 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2643 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2644 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2645 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2646 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2647 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2648 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2649 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2650 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2651 | |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2652 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2653 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2654 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2655 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2656 | |
| 2657 | if (mp->shared->win_protect) |
| 2658 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2659 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2660 | err = register_netdev(dev); |
| 2661 | if (err) |
| 2662 | goto out; |
| 2663 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2664 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2665 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2667 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2668 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2669 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2670 | return 0; |
| 2671 | |
| 2672 | out: |
| 2673 | free_netdev(dev); |
| 2674 | |
| 2675 | return err; |
| 2676 | } |
| 2677 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2678 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2679 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2680 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2682 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2683 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2684 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2685 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2686 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2687 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2688 | return 0; |
| 2689 | } |
| 2690 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2691 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2692 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2693 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2694 | |
| 2695 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2696 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2697 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2698 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2699 | if (netif_running(mp->dev)) |
| 2700 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2701 | } |
| 2702 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2703 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2704 | .probe = mv643xx_eth_probe, |
| 2705 | .remove = mv643xx_eth_remove, |
| 2706 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2707 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2708 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2709 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2710 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2711 | }; |
| 2712 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2713 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | { |
| 2715 | int rc; |
| 2716 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2717 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2718 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2719 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2720 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2721 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2722 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2723 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2724 | return rc; |
| 2725 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2726 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2727 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2728 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2729 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2730 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2731 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2732 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2733 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2734 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 2735 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 2736 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2737 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2738 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2739 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2740 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |