Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Lennert Buytenhek | 9c1bbdf | 2007-10-19 04:11:03 +0200 | [diff] [blame] | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
| 4 | * |
| 5 | * Based on the 64360 driver from: |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
| 7 | * Rabeeh Khoury <rabeeh@marvell.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 2003 PMC-Sierra, Inc., |
Olaf Hering | 3bb8a18a | 2006-01-05 22:45:45 -0800 | [diff] [blame] | 10 | * written by Manish Lachwani |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * |
| 12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> |
| 13 | * |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Dale Farnsworth <dale@farnsworth.org> |
| 16 | * |
| 17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> |
| 18 | * <sjhill@realitydiluted.com> |
| 19 | * |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
| 21 | * Lennert Buytenhek <buytenh@marvell.com> |
| 22 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | * This program is free software; you can redistribute it and/or |
| 24 | * modify it under the terms of the GNU General Public License |
| 25 | * as published by the Free Software Foundation; either version 2 |
| 26 | * of the License, or (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 31 | * GNU General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public License |
| 34 | * along with this program; if not, write to the Free Software |
| 35 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 36 | */ |
Lennert Buytenhek | a779d38 | 2008-06-01 00:54:05 +0200 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/init.h> |
| 39 | #include <linux/dma-mapping.h> |
Al Viro | b6298c2 | 2006-01-18 19:35:54 -0500 | [diff] [blame] | 40 | #include <linux/in.h> |
Lennert Buytenhek | c3efab8 | 2008-10-02 00:52:39 +0000 | [diff] [blame] | 41 | #include <linux/ip.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <linux/tcp.h> |
| 43 | #include <linux/udp.h> |
| 44 | #include <linux/etherdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <linux/delay.h> |
| 46 | #include <linux/ethtool.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 47 | #include <linux/platform_device.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 48 | #include <linux/module.h> |
| 49 | #include <linux/kernel.h> |
| 50 | #include <linux/spinlock.h> |
| 51 | #include <linux/workqueue.h> |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 52 | #include <linux/phy.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 53 | #include <linux/mv643xx_eth.h> |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 54 | #include <linux/io.h> |
| 55 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | #include <asm/system.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 57 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 58 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
Lennert Buytenhek | 042af53 | 2008-08-24 09:01:57 +0200 | [diff] [blame] | 59 | static char mv643xx_eth_driver_version[] = "1.4"; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 60 | |
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 | /* |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 81 | * Main per-port registers. These live at offset 0x0400 for |
| 82 | * port #0, 0x0800 for port #1, and 0x0c00 for port #2. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 83 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 84 | #define PORT_CONFIG 0x0000 |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 85 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 86 | #define PORT_CONFIG_EXT 0x0004 |
| 87 | #define MAC_ADDR_LOW 0x0014 |
| 88 | #define MAC_ADDR_HIGH 0x0018 |
| 89 | #define SDMA_CONFIG 0x001c |
| 90 | #define PORT_SERIAL_CONTROL 0x003c |
| 91 | #define PORT_STATUS 0x0044 |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 92 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 93 | #define TX_IN_PROGRESS 0x00000080 |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 94 | #define PORT_SPEED_MASK 0x00000030 |
| 95 | #define PORT_SPEED_1000 0x00000010 |
| 96 | #define PORT_SPEED_100 0x00000020 |
| 97 | #define PORT_SPEED_10 0x00000000 |
| 98 | #define FLOW_CONTROL_ENABLED 0x00000008 |
| 99 | #define FULL_DUPLEX 0x00000004 |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 100 | #define LINK_UP 0x00000002 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 101 | #define TXQ_COMMAND 0x0048 |
| 102 | #define TXQ_FIX_PRIO_CONF 0x004c |
| 103 | #define TX_BW_RATE 0x0050 |
| 104 | #define TX_BW_MTU 0x0058 |
| 105 | #define TX_BW_BURST 0x005c |
| 106 | #define INT_CAUSE 0x0060 |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 107 | #define INT_TX_END 0x07f80000 |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame] | 108 | #define INT_RX 0x000003fc |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 109 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 110 | #define INT_CAUSE_EXT 0x0064 |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame] | 111 | #define INT_EXT_LINK_PHY 0x00110000 |
| 112 | #define INT_EXT_TX 0x000000ff |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 113 | #define INT_MASK 0x0068 |
| 114 | #define INT_MASK_EXT 0x006c |
| 115 | #define TX_FIFO_URGENT_THRESHOLD 0x0074 |
| 116 | #define TXQ_FIX_PRIO_CONF_MOVED 0x00dc |
| 117 | #define TX_BW_RATE_MOVED 0x00e0 |
| 118 | #define TX_BW_MTU_MOVED 0x00e8 |
| 119 | #define TX_BW_BURST_MOVED 0x00ec |
| 120 | #define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4)) |
| 121 | #define RXQ_COMMAND 0x0280 |
| 122 | #define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2)) |
| 123 | #define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4)) |
| 124 | #define TXQ_BW_CONF(q) (0x0304 + ((q) << 4)) |
| 125 | #define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4)) |
| 126 | |
| 127 | /* |
| 128 | * Misc per-port registers. |
| 129 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 130 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 131 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 132 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 133 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 134 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 135 | |
| 136 | /* |
| 137 | * SDMA configuration register. |
| 138 | */ |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 139 | #define RX_BURST_SIZE_4_64BIT (2 << 1) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 140 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 141 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 142 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 143 | #define TX_BURST_SIZE_4_64BIT (2 << 22) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 144 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 145 | |
| 146 | #if defined(__BIG_ENDIAN) |
| 147 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 148 | (RX_BURST_SIZE_4_64BIT | \ |
| 149 | TX_BURST_SIZE_4_64BIT) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 150 | #elif defined(__LITTLE_ENDIAN) |
| 151 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 152 | (RX_BURST_SIZE_4_64BIT | \ |
| 153 | BLM_RX_NO_SWAP | \ |
| 154 | BLM_TX_NO_SWAP | \ |
| 155 | TX_BURST_SIZE_4_64BIT) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 156 | #else |
| 157 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 158 | #endif |
| 159 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 160 | |
| 161 | /* |
| 162 | * Port serial control register. |
| 163 | */ |
| 164 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 165 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 166 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 167 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 168 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 169 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 170 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 171 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 172 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 173 | #define FORCE_LINK_PASS (1 << 1) |
| 174 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 175 | |
Lennert Buytenhek | 2b4a624 | 2008-09-14 14:09:59 +0200 | [diff] [blame] | 176 | #define DEFAULT_RX_QUEUE_SIZE 128 |
| 177 | #define DEFAULT_TX_QUEUE_SIZE 256 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 178 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 179 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 180 | /* |
| 181 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 182 | */ |
| 183 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 184 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 185 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 186 | u16 buf_size; /* Buffer size */ |
| 187 | u32 cmd_sts; /* Descriptor command status */ |
| 188 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 189 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 190 | }; |
| 191 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 192 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 193 | u16 byte_cnt; /* buffer byte count */ |
| 194 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 195 | u32 cmd_sts; /* Command/status field */ |
| 196 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 197 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 198 | }; |
| 199 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 200 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 201 | u32 cmd_sts; /* Descriptor command status */ |
| 202 | u16 buf_size; /* Buffer size */ |
| 203 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 204 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 205 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 206 | }; |
| 207 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 208 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 209 | u32 cmd_sts; /* Command/status field */ |
| 210 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 211 | u16 byte_cnt; /* buffer byte count */ |
| 212 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 213 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 214 | }; |
| 215 | #else |
| 216 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 217 | #endif |
| 218 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 219 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 220 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 221 | |
| 222 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 223 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 224 | |
| 225 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 226 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 227 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 228 | #define RX_FIRST_DESC 0x08000000 |
| 229 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 230 | |
| 231 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 232 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 233 | #define GEN_CRC 0x00400000 |
| 234 | #define TX_FIRST_DESC 0x00200000 |
| 235 | #define TX_LAST_DESC 0x00100000 |
| 236 | #define ZERO_PADDING 0x00080000 |
| 237 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 238 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 239 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 240 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
| 241 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 242 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 243 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 244 | |
| 245 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 246 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 247 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 248 | /* |
| 249 | * Ethernet controller base address. |
| 250 | */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 251 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 252 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 253 | /* |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 254 | * Points at the right SMI instance to use. |
| 255 | */ |
| 256 | struct mv643xx_eth_shared_private *smi; |
| 257 | |
| 258 | /* |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 259 | * Provides access to local SMI interface. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 260 | */ |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 261 | struct mii_bus *smi_bus; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 262 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 263 | /* |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 264 | * If we have access to the error interrupt pin (which is |
| 265 | * somewhat misnamed as it not only reflects internal errors |
| 266 | * but also reflects SMI completion), use that to wait for |
| 267 | * SMI access completion instead of polling the SMI busy bit. |
| 268 | */ |
| 269 | int err_interrupt; |
| 270 | wait_queue_head_t smi_busy_wait; |
| 271 | |
| 272 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 273 | * Per-port MBUS window access register value. |
| 274 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 275 | u32 win_protect; |
| 276 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 277 | /* |
| 278 | * Hardware-specific parameters. |
| 279 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 280 | unsigned int t_clk; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 281 | int extended_rx_coal_limit; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 282 | int tx_bw_control; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 283 | }; |
| 284 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 285 | #define TX_BW_CONTROL_ABSENT 0 |
| 286 | #define TX_BW_CONTROL_OLD_LAYOUT 1 |
| 287 | #define TX_BW_CONTROL_NEW_LAYOUT 2 |
| 288 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 289 | |
| 290 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 291 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 292 | u64 good_octets_received; |
| 293 | u32 bad_octets_received; |
| 294 | u32 internal_mac_transmit_err; |
| 295 | u32 good_frames_received; |
| 296 | u32 bad_frames_received; |
| 297 | u32 broadcast_frames_received; |
| 298 | u32 multicast_frames_received; |
| 299 | u32 frames_64_octets; |
| 300 | u32 frames_65_to_127_octets; |
| 301 | u32 frames_128_to_255_octets; |
| 302 | u32 frames_256_to_511_octets; |
| 303 | u32 frames_512_to_1023_octets; |
| 304 | u32 frames_1024_to_max_octets; |
| 305 | u64 good_octets_sent; |
| 306 | u32 good_frames_sent; |
| 307 | u32 excessive_collision; |
| 308 | u32 multicast_frames_sent; |
| 309 | u32 broadcast_frames_sent; |
| 310 | u32 unrec_mac_control_received; |
| 311 | u32 fc_sent; |
| 312 | u32 good_fc_received; |
| 313 | u32 bad_fc_received; |
| 314 | u32 undersize_received; |
| 315 | u32 fragments_received; |
| 316 | u32 oversize_received; |
| 317 | u32 jabber_received; |
| 318 | u32 mac_receive_error; |
| 319 | u32 bad_crc_event; |
| 320 | u32 collision; |
| 321 | u32 late_collision; |
| 322 | }; |
| 323 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 324 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 325 | int index; |
| 326 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 327 | int rx_ring_size; |
| 328 | |
| 329 | int rx_desc_count; |
| 330 | int rx_curr_desc; |
| 331 | int rx_used_desc; |
| 332 | |
| 333 | struct rx_desc *rx_desc_area; |
| 334 | dma_addr_t rx_desc_dma; |
| 335 | int rx_desc_area_size; |
| 336 | struct sk_buff **rx_skb; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 337 | }; |
| 338 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 339 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 340 | int index; |
| 341 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 342 | int tx_ring_size; |
| 343 | |
| 344 | int tx_desc_count; |
| 345 | int tx_curr_desc; |
| 346 | int tx_used_desc; |
| 347 | |
| 348 | struct tx_desc *tx_desc_area; |
| 349 | dma_addr_t tx_desc_dma; |
| 350 | int tx_desc_area_size; |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 351 | |
| 352 | struct sk_buff_head tx_skb; |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 353 | |
| 354 | unsigned long tx_packets; |
| 355 | unsigned long tx_bytes; |
| 356 | unsigned long tx_dropped; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 357 | }; |
| 358 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 359 | struct mv643xx_eth_private { |
| 360 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 361 | void __iomem *base; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 362 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 363 | |
| 364 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 365 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 366 | struct phy_device *phy; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 367 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 368 | struct timer_list mib_counters_timer; |
| 369 | spinlock_t mib_counters_lock; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 370 | struct mib_counters mib_counters; |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 371 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 372 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 373 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 374 | struct napi_struct napi; |
| 375 | u8 work_link; |
| 376 | u8 work_tx; |
| 377 | u8 work_tx_end; |
| 378 | u8 work_rx; |
| 379 | u8 work_rx_refill; |
| 380 | u8 work_rx_oom; |
| 381 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 382 | int skb_size; |
| 383 | struct sk_buff_head rx_recycle; |
| 384 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 385 | /* |
| 386 | * RX state. |
| 387 | */ |
| 388 | int default_rx_ring_size; |
| 389 | unsigned long rx_desc_sram_addr; |
| 390 | int rx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 391 | int rxq_count; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 392 | struct timer_list rx_oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 393 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 394 | |
| 395 | /* |
| 396 | * TX state. |
| 397 | */ |
| 398 | int default_tx_ring_size; |
| 399 | unsigned long tx_desc_sram_addr; |
| 400 | int tx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 401 | int txq_count; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 402 | struct tx_queue txq[8]; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 403 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 405 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 406 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 407 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 409 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | } |
| 411 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 412 | static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset) |
| 413 | { |
| 414 | return readl(mp->base + offset); |
| 415 | } |
| 416 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 417 | 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] | 418 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 419 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | } |
| 421 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 422 | static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data) |
| 423 | { |
| 424 | writel(data, mp->base + offset); |
| 425 | } |
| 426 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 427 | |
| 428 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 429 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 431 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 432 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 434 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 435 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 436 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 437 | } |
| 438 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 439 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 440 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 441 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 442 | wrlp(mp, RXQ_COMMAND, 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 443 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 444 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 445 | static void rxq_disable(struct rx_queue *rxq) |
| 446 | { |
| 447 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 448 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 449 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 450 | wrlp(mp, RXQ_COMMAND, mask << 8); |
| 451 | while (rdlp(mp, RXQ_COMMAND) & mask) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 452 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 453 | } |
| 454 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 455 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 456 | { |
| 457 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 458 | u32 addr; |
| 459 | |
| 460 | addr = (u32)txq->tx_desc_dma; |
| 461 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 462 | wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr); |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 463 | } |
| 464 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 465 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 466 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 467 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 468 | wrlp(mp, TXQ_COMMAND, 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 469 | } |
| 470 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 471 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 472 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 473 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 474 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 475 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 476 | wrlp(mp, TXQ_COMMAND, mask << 8); |
| 477 | while (rdlp(mp, TXQ_COMMAND) & mask) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 478 | udelay(10); |
| 479 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 480 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 481 | static void txq_maybe_wake(struct tx_queue *txq) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 482 | { |
| 483 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 484 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 485 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 486 | if (netif_tx_queue_stopped(nq)) { |
| 487 | __netif_tx_lock(nq, smp_processor_id()); |
| 488 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1) |
| 489 | netif_tx_wake_queue(nq); |
| 490 | __netif_tx_unlock(nq); |
| 491 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 492 | } |
| 493 | |
| 494 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 495 | /* rx napi ******************************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 496 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 498 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 499 | struct net_device_stats *stats = &mp->dev->stats; |
| 500 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 502 | rx = 0; |
Lennert Buytenhek | 9e1f377 | 2008-08-24 02:33:47 +0200 | [diff] [blame] | 503 | while (rx < budget && rxq->rx_desc_count) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 504 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 505 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 506 | struct sk_buff *skb; |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 507 | u16 byte_cnt; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 508 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 509 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 510 | |
| 511 | cmd_sts = rx_desc->cmd_sts; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 512 | if (cmd_sts & BUFFER_OWNED_BY_DMA) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 513 | break; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 514 | rmb(); |
| 515 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 516 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 517 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 518 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 519 | rxq->rx_curr_desc++; |
| 520 | if (rxq->rx_curr_desc == rxq->rx_ring_size) |
| 521 | rxq->rx_curr_desc = 0; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 522 | |
Lennert Buytenhek | 3a49948 | 2008-08-24 07:19:48 +0200 | [diff] [blame] | 523 | dma_unmap_single(NULL, rx_desc->buf_ptr, |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 524 | rx_desc->buf_size, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 525 | rxq->rx_desc_count--; |
| 526 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 527 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 528 | mp->work_rx_refill |= 1 << rxq->index; |
| 529 | |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 530 | byte_cnt = rx_desc->byte_cnt; |
| 531 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 532 | /* |
| 533 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 534 | * |
| 535 | * Note that the descriptor byte count includes 2 dummy |
| 536 | * bytes automatically inserted by the hardware at the |
| 537 | * start of the packet (which we don't count), and a 4 |
| 538 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 539 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | stats->rx_packets++; |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 541 | stats->rx_bytes += byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 542 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 544 | * In case we received a packet without first / last bits |
| 545 | * on, or the error summary bit is set, the packet needs |
| 546 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | */ |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 548 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY)) |
| 549 | != (RX_FIRST_DESC | RX_LAST_DESC)) |
| 550 | goto err; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 551 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 552 | /* |
| 553 | * The -4 is for the CRC in the trailer of the |
| 554 | * received packet |
| 555 | */ |
| 556 | skb_put(skb, byte_cnt - 2 - 4); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 557 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 558 | if (cmd_sts & LAYER_4_CHECKSUM_OK) |
| 559 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 560 | skb->protocol = eth_type_trans(skb, mp->dev); |
| 561 | netif_receive_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 563 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 565 | err: |
| 566 | stats->rx_dropped++; |
| 567 | |
| 568 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
| 569 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
| 570 | if (net_ratelimit()) |
| 571 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 572 | "received packet spanning " |
| 573 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | } |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 575 | |
| 576 | if (cmd_sts & ERROR_SUMMARY) |
| 577 | stats->rx_errors++; |
| 578 | |
| 579 | dev_kfree_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 581 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 582 | if (rx < budget) |
| 583 | mp->work_rx &= ~(1 << rxq->index); |
| 584 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 585 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | } |
| 587 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 588 | static int rxq_refill(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | { |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 590 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 591 | int refilled; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 592 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 593 | refilled = 0; |
| 594 | while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { |
| 595 | struct sk_buff *skb; |
| 596 | int unaligned; |
| 597 | int rx; |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 598 | struct rx_desc *rx_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 600 | skb = __skb_dequeue(&mp->rx_recycle); |
| 601 | if (skb == NULL) |
| 602 | skb = dev_alloc_skb(mp->skb_size + |
| 603 | dma_get_cache_alignment() - 1); |
| 604 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 605 | if (skb == NULL) { |
| 606 | mp->work_rx_oom |= 1 << rxq->index; |
| 607 | goto oom; |
| 608 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 610 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
| 611 | if (unaligned) |
| 612 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
| 613 | |
| 614 | refilled++; |
| 615 | rxq->rx_desc_count++; |
| 616 | |
| 617 | rx = rxq->rx_used_desc++; |
| 618 | if (rxq->rx_used_desc == rxq->rx_ring_size) |
| 619 | rxq->rx_used_desc = 0; |
| 620 | |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 621 | rx_desc = rxq->rx_desc_area + rx; |
| 622 | |
| 623 | rx_desc->buf_ptr = dma_map_single(NULL, skb->data, |
| 624 | mp->skb_size, DMA_FROM_DEVICE); |
| 625 | rx_desc->buf_size = mp->skb_size; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 626 | rxq->rx_skb[rx] = skb; |
| 627 | wmb(); |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 628 | rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 629 | wmb(); |
| 630 | |
| 631 | /* |
| 632 | * The hardware automatically prepends 2 bytes of |
| 633 | * dummy data to each received packet, so that the |
| 634 | * IP header ends up 16-byte aligned. |
| 635 | */ |
| 636 | skb_reserve(skb, 2); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 637 | } |
| 638 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 639 | if (refilled < budget) |
| 640 | mp->work_rx_refill &= ~(1 << rxq->index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 642 | oom: |
| 643 | return refilled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 646 | |
| 647 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 648 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 649 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 650 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 651 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 652 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 653 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 654 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 655 | return 1; |
| 656 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 657 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 658 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 659 | } |
| 660 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 661 | 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] | 662 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 663 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 664 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 665 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 666 | for (frag = 0; frag < nr_frags; frag++) { |
| 667 | skb_frag_t *this_frag; |
| 668 | int tx_index; |
| 669 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 670 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 671 | this_frag = &skb_shinfo(skb)->frags[frag]; |
Lennert Buytenhek | 66823b9 | 2008-11-20 03:58:09 -0800 | [diff] [blame] | 672 | tx_index = txq->tx_curr_desc++; |
| 673 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 674 | txq->tx_curr_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 675 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 676 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 677 | /* |
| 678 | * The last fragment will generate an interrupt |
| 679 | * which will free the skb on TX completion. |
| 680 | */ |
| 681 | if (frag == nr_frags - 1) { |
| 682 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 683 | ZERO_PADDING | TX_LAST_DESC | |
| 684 | TX_ENABLE_INTERRUPT; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 685 | } else { |
| 686 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 687 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 688 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 689 | desc->l4i_chk = 0; |
| 690 | desc->byte_cnt = this_frag->size; |
| 691 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 692 | this_frag->page_offset, |
| 693 | this_frag->size, |
| 694 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 695 | } |
| 696 | } |
| 697 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 698 | static inline __be16 sum16_as_be(__sum16 sum) |
| 699 | { |
| 700 | return (__force __be16)sum; |
| 701 | } |
| 702 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 703 | static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 704 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 705 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 706 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 707 | int tx_index; |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 708 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 709 | u32 cmd_sts; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 710 | u16 l4i_chk; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 711 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 712 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 713 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 714 | l4i_chk = 0; |
| 715 | |
| 716 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| 717 | int tag_bytes; |
| 718 | |
| 719 | BUG_ON(skb->protocol != htons(ETH_P_IP) && |
| 720 | skb->protocol != htons(ETH_P_8021Q)); |
| 721 | |
| 722 | tag_bytes = (void *)ip_hdr(skb) - (void *)skb->data - ETH_HLEN; |
| 723 | if (unlikely(tag_bytes & ~12)) { |
| 724 | if (skb_checksum_help(skb) == 0) |
| 725 | goto no_csum; |
| 726 | kfree_skb(skb); |
| 727 | return 1; |
| 728 | } |
| 729 | |
| 730 | if (tag_bytes & 4) |
| 731 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 732 | if (tag_bytes & 8) |
| 733 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 734 | |
| 735 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 736 | GEN_IP_V4_CHECKSUM | |
| 737 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
| 738 | |
| 739 | switch (ip_hdr(skb)->protocol) { |
| 740 | case IPPROTO_UDP: |
| 741 | cmd_sts |= UDP_FRAME; |
| 742 | l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
| 743 | break; |
| 744 | case IPPROTO_TCP: |
| 745 | l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
| 746 | break; |
| 747 | default: |
| 748 | BUG(); |
| 749 | } |
| 750 | } else { |
| 751 | no_csum: |
| 752 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
| 753 | cmd_sts |= 5 << TX_IHL_SHIFT; |
| 754 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 755 | |
Lennert Buytenhek | 66823b9 | 2008-11-20 03:58:09 -0800 | [diff] [blame] | 756 | tx_index = txq->tx_curr_desc++; |
| 757 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 758 | txq->tx_curr_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 759 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 760 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 761 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 762 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 763 | length = skb_headlen(skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 764 | } else { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 765 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 766 | length = skb->len; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 767 | } |
| 768 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 769 | desc->l4i_chk = l4i_chk; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 770 | desc->byte_cnt = length; |
| 771 | 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] | 772 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 773 | __skb_queue_tail(&txq->tx_skb, skb); |
| 774 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 775 | /* ensure all other descriptors are written before first cmd_sts */ |
| 776 | wmb(); |
| 777 | desc->cmd_sts = cmd_sts; |
| 778 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 779 | /* clear TX_END status */ |
| 780 | mp->work_tx_end &= ~(1 << txq->index); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 781 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 782 | /* ensure all descriptors are written before poking hardware */ |
| 783 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 784 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 785 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 786 | txq->tx_desc_count += nr_frags + 1; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 787 | |
| 788 | return 0; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 789 | } |
| 790 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 791 | 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] | 792 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 793 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 794 | int queue; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 795 | struct tx_queue *txq; |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 796 | struct netdev_queue *nq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 798 | queue = skb_get_queue_mapping(skb); |
| 799 | txq = mp->txq + queue; |
| 800 | nq = netdev_get_tx_queue(dev, queue); |
| 801 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 802 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 803 | txq->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 804 | dev_printk(KERN_DEBUG, &dev->dev, |
| 805 | "failed to linearize skb with tiny " |
| 806 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 807 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 808 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame] | 810 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 811 | if (net_ratelimit()) |
| 812 | dev_printk(KERN_ERR, &dev->dev, "tx queue full?!\n"); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 813 | kfree_skb(skb); |
| 814 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 815 | } |
| 816 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 817 | if (!txq_submit_skb(txq, skb)) { |
| 818 | int entries_left; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 820 | txq->tx_bytes += skb->len; |
| 821 | txq->tx_packets++; |
| 822 | dev->trans_start = jiffies; |
| 823 | |
| 824 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
| 825 | if (entries_left < MAX_SKB_FRAGS + 1) |
| 826 | netif_tx_stop_queue(nq); |
| 827 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 828 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 829 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 832 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 833 | /* tx napi ******************************************************************/ |
| 834 | static void txq_kick(struct tx_queue *txq) |
| 835 | { |
| 836 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 837 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 838 | u32 hw_desc_ptr; |
| 839 | u32 expected_ptr; |
| 840 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 841 | __netif_tx_lock(nq, smp_processor_id()); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 842 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 843 | if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index)) |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 844 | goto out; |
| 845 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 846 | hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index)); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 847 | expected_ptr = (u32)txq->tx_desc_dma + |
| 848 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 849 | |
| 850 | if (hw_desc_ptr != expected_ptr) |
| 851 | txq_enable(txq); |
| 852 | |
| 853 | out: |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 854 | __netif_tx_unlock(nq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 855 | |
| 856 | mp->work_tx_end &= ~(1 << txq->index); |
| 857 | } |
| 858 | |
| 859 | static int txq_reclaim(struct tx_queue *txq, int budget, int force) |
| 860 | { |
| 861 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 862 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 863 | int reclaimed; |
| 864 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 865 | __netif_tx_lock(nq, smp_processor_id()); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 866 | |
| 867 | reclaimed = 0; |
| 868 | while (reclaimed < budget && txq->tx_desc_count > 0) { |
| 869 | int tx_index; |
| 870 | struct tx_desc *desc; |
| 871 | u32 cmd_sts; |
| 872 | struct sk_buff *skb; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 873 | |
| 874 | tx_index = txq->tx_used_desc; |
| 875 | desc = &txq->tx_desc_area[tx_index]; |
| 876 | cmd_sts = desc->cmd_sts; |
| 877 | |
| 878 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 879 | if (!force) |
| 880 | break; |
| 881 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 882 | } |
| 883 | |
| 884 | txq->tx_used_desc = tx_index + 1; |
| 885 | if (txq->tx_used_desc == txq->tx_ring_size) |
| 886 | txq->tx_used_desc = 0; |
| 887 | |
| 888 | reclaimed++; |
| 889 | txq->tx_desc_count--; |
| 890 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 891 | skb = NULL; |
| 892 | if (cmd_sts & TX_LAST_DESC) |
| 893 | skb = __skb_dequeue(&txq->tx_skb); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 894 | |
| 895 | if (cmd_sts & ERROR_SUMMARY) { |
| 896 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 897 | mp->dev->stats.tx_errors++; |
| 898 | } |
| 899 | |
Lennert Buytenhek | a418950 | 2008-09-13 04:16:15 +0200 | [diff] [blame] | 900 | if (cmd_sts & TX_FIRST_DESC) { |
| 901 | dma_unmap_single(NULL, desc->buf_ptr, |
| 902 | desc->byte_cnt, DMA_TO_DEVICE); |
| 903 | } else { |
| 904 | dma_unmap_page(NULL, desc->buf_ptr, |
| 905 | desc->byte_cnt, DMA_TO_DEVICE); |
| 906 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 907 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 908 | if (skb != NULL) { |
| 909 | if (skb_queue_len(&mp->rx_recycle) < |
| 910 | mp->default_rx_ring_size && |
Lennert Buytenhek | 11b4aa0 | 2008-11-18 04:28:58 +0000 | [diff] [blame] | 911 | skb_recycle_check(skb, mp->skb_size + |
| 912 | dma_get_cache_alignment() - 1)) |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 913 | __skb_queue_head(&mp->rx_recycle, skb); |
| 914 | else |
| 915 | dev_kfree_skb(skb); |
| 916 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 917 | } |
| 918 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 919 | __netif_tx_unlock(nq); |
| 920 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 921 | if (reclaimed < budget) |
| 922 | mp->work_tx &= ~(1 << txq->index); |
| 923 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 924 | return reclaimed; |
| 925 | } |
| 926 | |
| 927 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 928 | /* tx rate control **********************************************************/ |
| 929 | /* |
| 930 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 931 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 932 | */ |
| 933 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 934 | { |
| 935 | int token_rate; |
| 936 | int mtu; |
| 937 | int bucket_size; |
| 938 | |
| 939 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 940 | if (token_rate > 1023) |
| 941 | token_rate = 1023; |
| 942 | |
| 943 | mtu = (mp->dev->mtu + 255) >> 8; |
| 944 | if (mtu > 63) |
| 945 | mtu = 63; |
| 946 | |
| 947 | bucket_size = (burst + 255) >> 8; |
| 948 | if (bucket_size > 65535) |
| 949 | bucket_size = 65535; |
| 950 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 951 | switch (mp->shared->tx_bw_control) { |
| 952 | case TX_BW_CONTROL_OLD_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 953 | wrlp(mp, TX_BW_RATE, token_rate); |
| 954 | wrlp(mp, TX_BW_MTU, mtu); |
| 955 | wrlp(mp, TX_BW_BURST, bucket_size); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 956 | break; |
| 957 | case TX_BW_CONTROL_NEW_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 958 | wrlp(mp, TX_BW_RATE_MOVED, token_rate); |
| 959 | wrlp(mp, TX_BW_MTU_MOVED, mtu); |
| 960 | wrlp(mp, TX_BW_BURST_MOVED, bucket_size); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 961 | break; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 962 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 963 | } |
| 964 | |
| 965 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 966 | { |
| 967 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 968 | int token_rate; |
| 969 | int bucket_size; |
| 970 | |
| 971 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 972 | if (token_rate > 1023) |
| 973 | token_rate = 1023; |
| 974 | |
| 975 | bucket_size = (burst + 255) >> 8; |
| 976 | if (bucket_size > 65535) |
| 977 | bucket_size = 65535; |
| 978 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 979 | wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14); |
| 980 | wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 981 | } |
| 982 | |
| 983 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 984 | { |
| 985 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 986 | int off; |
| 987 | u32 val; |
| 988 | |
| 989 | /* |
| 990 | * Turn on fixed priority mode. |
| 991 | */ |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 992 | off = 0; |
| 993 | switch (mp->shared->tx_bw_control) { |
| 994 | case TX_BW_CONTROL_OLD_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 995 | off = TXQ_FIX_PRIO_CONF; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 996 | break; |
| 997 | case TX_BW_CONTROL_NEW_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 998 | off = TXQ_FIX_PRIO_CONF_MOVED; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 999 | break; |
| 1000 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1001 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1002 | if (off) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1003 | val = rdlp(mp, off); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1004 | val |= 1 << txq->index; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1005 | wrlp(mp, off, val); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1006 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1007 | } |
| 1008 | |
| 1009 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 1010 | { |
| 1011 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 1012 | int off; |
| 1013 | u32 val; |
| 1014 | |
| 1015 | /* |
| 1016 | * Turn off fixed priority mode. |
| 1017 | */ |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1018 | off = 0; |
| 1019 | switch (mp->shared->tx_bw_control) { |
| 1020 | case TX_BW_CONTROL_OLD_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1021 | off = TXQ_FIX_PRIO_CONF; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1022 | break; |
| 1023 | case TX_BW_CONTROL_NEW_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1024 | off = TXQ_FIX_PRIO_CONF_MOVED; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1025 | break; |
| 1026 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1027 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1028 | if (off) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1029 | val = rdlp(mp, off); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1030 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1031 | wrlp(mp, off, val); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1032 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1033 | /* |
| 1034 | * Configure WRR weight for this queue. |
| 1035 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1036 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1037 | val = rdlp(mp, off); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1038 | val = (val & ~0xff) | (weight & 0xff); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1039 | wrlp(mp, TXQ_BW_WRR_CONF(txq->index), val); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1040 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1041 | } |
| 1042 | |
| 1043 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1044 | /* mii management interface *************************************************/ |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1045 | static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1046 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1047 | struct mv643xx_eth_shared_private *msp = dev_id; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1048 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1049 | if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) { |
| 1050 | writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE); |
| 1051 | wake_up(&msp->smi_busy_wait); |
| 1052 | return IRQ_HANDLED; |
| 1053 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1054 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1055 | return IRQ_NONE; |
| 1056 | } |
| 1057 | |
| 1058 | static int smi_is_done(struct mv643xx_eth_shared_private *msp) |
| 1059 | { |
| 1060 | return !(readl(msp->base + SMI_REG) & SMI_BUSY); |
| 1061 | } |
| 1062 | |
| 1063 | static int smi_wait_ready(struct mv643xx_eth_shared_private *msp) |
| 1064 | { |
| 1065 | if (msp->err_interrupt == NO_IRQ) { |
| 1066 | int i; |
| 1067 | |
| 1068 | for (i = 0; !smi_is_done(msp); i++) { |
| 1069 | if (i == 10) |
| 1070 | return -ETIMEDOUT; |
| 1071 | msleep(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1072 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1073 | |
| 1074 | return 0; |
| 1075 | } |
| 1076 | |
Lennert Buytenhek | ee04448 | 2008-11-01 06:32:20 +0100 | [diff] [blame] | 1077 | if (!smi_is_done(msp)) { |
| 1078 | wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp), |
| 1079 | msecs_to_jiffies(100)); |
| 1080 | if (!smi_is_done(msp)) |
| 1081 | return -ETIMEDOUT; |
| 1082 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1083 | |
| 1084 | return 0; |
| 1085 | } |
| 1086 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1087 | static int smi_bus_read(struct mii_bus *bus, int addr, int reg) |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1088 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1089 | struct mv643xx_eth_shared_private *msp = bus->priv; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1090 | void __iomem *smi_reg = msp->base + SMI_REG; |
| 1091 | int ret; |
| 1092 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1093 | if (smi_wait_ready(msp)) { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1094 | printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n"); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1095 | return -ETIMEDOUT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1096 | } |
| 1097 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1098 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1099 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1100 | if (smi_wait_ready(msp)) { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1101 | printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n"); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1102 | return -ETIMEDOUT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1103 | } |
| 1104 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1105 | ret = readl(smi_reg); |
| 1106 | if (!(ret & SMI_READ_VALID)) { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1107 | printk(KERN_WARNING "mv643xx_eth: SMI bus read not valid\n"); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1108 | return -ENODEV; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1109 | } |
| 1110 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1111 | return ret & 0xffff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1112 | } |
| 1113 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1114 | static int smi_bus_write(struct mii_bus *bus, int addr, int reg, u16 val) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1115 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1116 | struct mv643xx_eth_shared_private *msp = bus->priv; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1117 | void __iomem *smi_reg = msp->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1118 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1119 | if (smi_wait_ready(msp)) { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1120 | printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n"); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1121 | return -ETIMEDOUT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1122 | } |
| 1123 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1124 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1125 | (addr << 16) | (val & 0xffff), smi_reg); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1126 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1127 | if (smi_wait_ready(msp)) { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1128 | printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n"); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1129 | return -ETIMEDOUT; |
| 1130 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1131 | |
| 1132 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1133 | } |
| 1134 | |
| 1135 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 1136 | /* statistics ***************************************************************/ |
| 1137 | static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev) |
| 1138 | { |
| 1139 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1140 | struct net_device_stats *stats = &dev->stats; |
| 1141 | unsigned long tx_packets = 0; |
| 1142 | unsigned long tx_bytes = 0; |
| 1143 | unsigned long tx_dropped = 0; |
| 1144 | int i; |
| 1145 | |
| 1146 | for (i = 0; i < mp->txq_count; i++) { |
| 1147 | struct tx_queue *txq = mp->txq + i; |
| 1148 | |
| 1149 | tx_packets += txq->tx_packets; |
| 1150 | tx_bytes += txq->tx_bytes; |
| 1151 | tx_dropped += txq->tx_dropped; |
| 1152 | } |
| 1153 | |
| 1154 | stats->tx_packets = tx_packets; |
| 1155 | stats->tx_bytes = tx_bytes; |
| 1156 | stats->tx_dropped = tx_dropped; |
| 1157 | |
| 1158 | return stats; |
| 1159 | } |
| 1160 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1161 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1162 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1163 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1164 | } |
| 1165 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1166 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1167 | { |
| 1168 | int i; |
| 1169 | |
| 1170 | for (i = 0; i < 0x80; i += 4) |
| 1171 | mib_read(mp, i); |
| 1172 | } |
| 1173 | |
| 1174 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1175 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1176 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1177 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 1178 | spin_lock(&mp->mib_counters_lock); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1179 | p->good_octets_received += mib_read(mp, 0x00); |
| 1180 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 1181 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1182 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1183 | p->good_frames_received += mib_read(mp, 0x10); |
| 1184 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1185 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1186 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1187 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1188 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1189 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1190 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1191 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1192 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1193 | p->good_octets_sent += mib_read(mp, 0x38); |
| 1194 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1195 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1196 | p->excessive_collision += mib_read(mp, 0x44); |
| 1197 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1198 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1199 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1200 | p->fc_sent += mib_read(mp, 0x54); |
| 1201 | p->good_fc_received += mib_read(mp, 0x58); |
| 1202 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1203 | p->undersize_received += mib_read(mp, 0x60); |
| 1204 | p->fragments_received += mib_read(mp, 0x64); |
| 1205 | p->oversize_received += mib_read(mp, 0x68); |
| 1206 | p->jabber_received += mib_read(mp, 0x6c); |
| 1207 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1208 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1209 | p->collision += mib_read(mp, 0x78); |
| 1210 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 1211 | spin_unlock(&mp->mib_counters_lock); |
| 1212 | |
| 1213 | mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); |
| 1214 | } |
| 1215 | |
| 1216 | static void mib_counters_timer_wrapper(unsigned long _mp) |
| 1217 | { |
| 1218 | struct mv643xx_eth_private *mp = (void *)_mp; |
| 1219 | |
| 1220 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1221 | } |
| 1222 | |
| 1223 | |
| 1224 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1225 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1226 | char stat_string[ETH_GSTRING_LEN]; |
| 1227 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1228 | int netdev_off; |
| 1229 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1230 | }; |
| 1231 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1232 | #define SSTAT(m) \ |
| 1233 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1234 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1235 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1236 | #define MIBSTAT(m) \ |
| 1237 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1238 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1239 | |
| 1240 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1241 | SSTAT(rx_packets), |
| 1242 | SSTAT(tx_packets), |
| 1243 | SSTAT(rx_bytes), |
| 1244 | SSTAT(tx_bytes), |
| 1245 | SSTAT(rx_errors), |
| 1246 | SSTAT(tx_errors), |
| 1247 | SSTAT(rx_dropped), |
| 1248 | SSTAT(tx_dropped), |
| 1249 | MIBSTAT(good_octets_received), |
| 1250 | MIBSTAT(bad_octets_received), |
| 1251 | MIBSTAT(internal_mac_transmit_err), |
| 1252 | MIBSTAT(good_frames_received), |
| 1253 | MIBSTAT(bad_frames_received), |
| 1254 | MIBSTAT(broadcast_frames_received), |
| 1255 | MIBSTAT(multicast_frames_received), |
| 1256 | MIBSTAT(frames_64_octets), |
| 1257 | MIBSTAT(frames_65_to_127_octets), |
| 1258 | MIBSTAT(frames_128_to_255_octets), |
| 1259 | MIBSTAT(frames_256_to_511_octets), |
| 1260 | MIBSTAT(frames_512_to_1023_octets), |
| 1261 | MIBSTAT(frames_1024_to_max_octets), |
| 1262 | MIBSTAT(good_octets_sent), |
| 1263 | MIBSTAT(good_frames_sent), |
| 1264 | MIBSTAT(excessive_collision), |
| 1265 | MIBSTAT(multicast_frames_sent), |
| 1266 | MIBSTAT(broadcast_frames_sent), |
| 1267 | MIBSTAT(unrec_mac_control_received), |
| 1268 | MIBSTAT(fc_sent), |
| 1269 | MIBSTAT(good_fc_received), |
| 1270 | MIBSTAT(bad_fc_received), |
| 1271 | MIBSTAT(undersize_received), |
| 1272 | MIBSTAT(fragments_received), |
| 1273 | MIBSTAT(oversize_received), |
| 1274 | MIBSTAT(jabber_received), |
| 1275 | MIBSTAT(mac_receive_error), |
| 1276 | MIBSTAT(bad_crc_event), |
| 1277 | MIBSTAT(collision), |
| 1278 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1279 | }; |
| 1280 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1281 | static int |
| 1282 | mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1283 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1284 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1285 | int err; |
| 1286 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1287 | err = phy_read_status(mp->phy); |
| 1288 | if (err == 0) |
| 1289 | err = phy_ethtool_gset(mp->phy, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1290 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1291 | /* |
| 1292 | * The MAC does not support 1000baseT_Half. |
| 1293 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1294 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1295 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1296 | |
| 1297 | return err; |
| 1298 | } |
| 1299 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1300 | static int |
| 1301 | mv643xx_eth_get_settings_phyless(struct net_device *dev, |
| 1302 | struct ethtool_cmd *cmd) |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1303 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1304 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1305 | u32 port_status; |
| 1306 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1307 | port_status = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1308 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1309 | cmd->supported = SUPPORTED_MII; |
| 1310 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1311 | switch (port_status & PORT_SPEED_MASK) { |
| 1312 | case PORT_SPEED_10: |
| 1313 | cmd->speed = SPEED_10; |
| 1314 | break; |
| 1315 | case PORT_SPEED_100: |
| 1316 | cmd->speed = SPEED_100; |
| 1317 | break; |
| 1318 | case PORT_SPEED_1000: |
| 1319 | cmd->speed = SPEED_1000; |
| 1320 | break; |
| 1321 | default: |
| 1322 | cmd->speed = -1; |
| 1323 | break; |
| 1324 | } |
| 1325 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1326 | cmd->port = PORT_MII; |
| 1327 | cmd->phy_address = 0; |
| 1328 | cmd->transceiver = XCVR_INTERNAL; |
| 1329 | cmd->autoneg = AUTONEG_DISABLE; |
| 1330 | cmd->maxtxpkt = 1; |
| 1331 | cmd->maxrxpkt = 1; |
| 1332 | |
| 1333 | return 0; |
| 1334 | } |
| 1335 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1336 | static int |
| 1337 | mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1338 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1339 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1340 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1341 | /* |
| 1342 | * The MAC does not support 1000baseT_Half. |
| 1343 | */ |
| 1344 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1345 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1346 | return phy_ethtool_sset(mp->phy, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1347 | } |
| 1348 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1349 | static int |
| 1350 | mv643xx_eth_set_settings_phyless(struct net_device *dev, |
| 1351 | struct ethtool_cmd *cmd) |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1352 | { |
| 1353 | return -EINVAL; |
| 1354 | } |
| 1355 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1356 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1357 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1358 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1359 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1360 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1361 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1362 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1363 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1364 | } |
| 1365 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1366 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1367 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1368 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1369 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1370 | return genphy_restart_aneg(mp->phy); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1371 | } |
| 1372 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1373 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
| 1374 | { |
| 1375 | return -EINVAL; |
| 1376 | } |
| 1377 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1378 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1379 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1380 | return !!netif_carrier_ok(dev); |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1381 | } |
| 1382 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1383 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1384 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1385 | { |
| 1386 | int i; |
| 1387 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1388 | if (stringset == ETH_SS_STATS) { |
| 1389 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1390 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1391 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1392 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1393 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1394 | } |
| 1395 | } |
| 1396 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1397 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1398 | struct ethtool_stats *stats, |
| 1399 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1400 | { |
Lennert Buytenhek | b987384 | 2008-08-24 05:59:16 +0200 | [diff] [blame] | 1401 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1402 | int i; |
| 1403 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 1404 | mv643xx_eth_get_stats(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1405 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1406 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1407 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1408 | const struct mv643xx_eth_stats *stat; |
| 1409 | void *p; |
| 1410 | |
| 1411 | stat = mv643xx_eth_stats + i; |
| 1412 | |
| 1413 | if (stat->netdev_off >= 0) |
| 1414 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1415 | else |
| 1416 | p = ((void *)mp) + stat->mp_off; |
| 1417 | |
| 1418 | data[i] = (stat->sizeof_stat == 8) ? |
| 1419 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1420 | } |
| 1421 | } |
| 1422 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1423 | 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] | 1424 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1425 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1426 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1427 | |
| 1428 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1429 | } |
| 1430 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1431 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1432 | .get_settings = mv643xx_eth_get_settings, |
| 1433 | .set_settings = mv643xx_eth_set_settings, |
| 1434 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1435 | .nway_reset = mv643xx_eth_nway_reset, |
| 1436 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1437 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1438 | .get_strings = mv643xx_eth_get_strings, |
| 1439 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1440 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1441 | }; |
| 1442 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1443 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
| 1444 | .get_settings = mv643xx_eth_get_settings_phyless, |
| 1445 | .set_settings = mv643xx_eth_set_settings_phyless, |
| 1446 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1447 | .nway_reset = mv643xx_eth_nway_reset_phyless, |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1448 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1449 | .set_sg = ethtool_op_set_sg, |
| 1450 | .get_strings = mv643xx_eth_get_strings, |
| 1451 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1452 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1453 | }; |
| 1454 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1455 | |
| 1456 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1457 | 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] | 1458 | { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1459 | unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH); |
| 1460 | unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1461 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1462 | addr[0] = (mac_h >> 24) & 0xff; |
| 1463 | addr[1] = (mac_h >> 16) & 0xff; |
| 1464 | addr[2] = (mac_h >> 8) & 0xff; |
| 1465 | addr[3] = mac_h & 0xff; |
| 1466 | addr[4] = (mac_l >> 8) & 0xff; |
| 1467 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1468 | } |
| 1469 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1470 | 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] | 1471 | { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1472 | wrlp(mp, MAC_ADDR_HIGH, |
| 1473 | (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]); |
| 1474 | wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1475 | } |
| 1476 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1477 | static u32 uc_addr_filter_mask(struct net_device *dev) |
| 1478 | { |
| 1479 | struct dev_addr_list *uc_ptr; |
| 1480 | u32 nibbles; |
| 1481 | |
| 1482 | if (dev->flags & IFF_PROMISC) |
| 1483 | return 0; |
| 1484 | |
| 1485 | nibbles = 1 << (dev->dev_addr[5] & 0x0f); |
| 1486 | for (uc_ptr = dev->uc_list; uc_ptr != NULL; uc_ptr = uc_ptr->next) { |
| 1487 | if (memcmp(dev->dev_addr, uc_ptr->da_addr, 5)) |
| 1488 | return 0; |
| 1489 | if ((dev->dev_addr[5] ^ uc_ptr->da_addr[5]) & 0xf0) |
| 1490 | return 0; |
| 1491 | |
| 1492 | nibbles |= 1 << (uc_ptr->da_addr[5] & 0x0f); |
| 1493 | } |
| 1494 | |
| 1495 | return nibbles; |
| 1496 | } |
| 1497 | |
| 1498 | static void mv643xx_eth_program_unicast_filter(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1499 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1500 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1501 | u32 port_config; |
| 1502 | u32 nibbles; |
| 1503 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1504 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1505 | uc_addr_set(mp, dev->dev_addr); |
| 1506 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1507 | port_config = rdlp(mp, PORT_CONFIG); |
| 1508 | nibbles = uc_addr_filter_mask(dev); |
| 1509 | if (!nibbles) { |
| 1510 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1511 | wrlp(mp, PORT_CONFIG, port_config); |
| 1512 | return; |
| 1513 | } |
| 1514 | |
| 1515 | for (i = 0; i < 16; i += 4) { |
| 1516 | int off = UNICAST_TABLE(mp->port_num) + i; |
| 1517 | u32 v; |
| 1518 | |
| 1519 | v = 0; |
| 1520 | if (nibbles & 1) |
| 1521 | v |= 0x00000001; |
| 1522 | if (nibbles & 2) |
| 1523 | v |= 0x00000100; |
| 1524 | if (nibbles & 4) |
| 1525 | v |= 0x00010000; |
| 1526 | if (nibbles & 8) |
| 1527 | v |= 0x01000000; |
| 1528 | nibbles >>= 4; |
| 1529 | |
| 1530 | wrl(mp, off, v); |
| 1531 | } |
| 1532 | |
| 1533 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1534 | wrlp(mp, PORT_CONFIG, port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1535 | } |
| 1536 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1537 | static int addr_crc(unsigned char *addr) |
| 1538 | { |
| 1539 | int crc = 0; |
| 1540 | int i; |
| 1541 | |
| 1542 | for (i = 0; i < 6; i++) { |
| 1543 | int j; |
| 1544 | |
| 1545 | crc = (crc ^ addr[i]) << 8; |
| 1546 | for (j = 7; j >= 0; j--) { |
| 1547 | if (crc & (0x100 << j)) |
| 1548 | crc ^= 0x107 << j; |
| 1549 | } |
| 1550 | } |
| 1551 | |
| 1552 | return crc; |
| 1553 | } |
| 1554 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1555 | static void mv643xx_eth_program_multicast_filter(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1556 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1557 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1558 | u32 *mc_spec; |
| 1559 | u32 *mc_other; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1560 | struct dev_addr_list *addr; |
| 1561 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1562 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1563 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1564 | int port_num; |
| 1565 | u32 accept; |
| 1566 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1567 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1568 | oom: |
| 1569 | port_num = mp->port_num; |
| 1570 | accept = 0x01010101; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1571 | for (i = 0; i < 0x100; i += 4) { |
| 1572 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1573 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1574 | } |
| 1575 | return; |
| 1576 | } |
| 1577 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1578 | mc_spec = kmalloc(0x200, GFP_KERNEL); |
| 1579 | if (mc_spec == NULL) |
| 1580 | goto oom; |
| 1581 | mc_other = mc_spec + (0x100 >> 2); |
| 1582 | |
| 1583 | memset(mc_spec, 0, 0x100); |
| 1584 | memset(mc_other, 0, 0x100); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1585 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1586 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1587 | u8 *a = addr->da_addr; |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1588 | u32 *table; |
| 1589 | int entry; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1590 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1591 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1592 | table = mc_spec; |
| 1593 | entry = a[5]; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1594 | } else { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1595 | table = mc_other; |
| 1596 | entry = addr_crc(a); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1597 | } |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1598 | |
Lennert Buytenhek | 2b44833 | 2009-01-19 17:17:18 -0800 | [diff] [blame] | 1599 | table[entry >> 2] |= 1 << (8 * (entry & 3)); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1600 | } |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1601 | |
| 1602 | for (i = 0; i < 0x100; i += 4) { |
| 1603 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, mc_spec[i >> 2]); |
| 1604 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, mc_other[i >> 2]); |
| 1605 | } |
| 1606 | |
| 1607 | kfree(mc_spec); |
| 1608 | } |
| 1609 | |
| 1610 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
| 1611 | { |
| 1612 | mv643xx_eth_program_unicast_filter(dev); |
| 1613 | mv643xx_eth_program_multicast_filter(dev); |
| 1614 | } |
| 1615 | |
| 1616 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1617 | { |
| 1618 | struct sockaddr *sa = addr; |
| 1619 | |
| 1620 | memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); |
| 1621 | |
| 1622 | netif_addr_lock_bh(dev); |
| 1623 | mv643xx_eth_program_unicast_filter(dev); |
| 1624 | netif_addr_unlock_bh(dev); |
| 1625 | |
| 1626 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1627 | } |
| 1628 | |
| 1629 | |
| 1630 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1631 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1632 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1633 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1634 | struct rx_desc *rx_desc; |
| 1635 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1636 | int i; |
| 1637 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1638 | rxq->index = index; |
| 1639 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1640 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1641 | |
| 1642 | rxq->rx_desc_count = 0; |
| 1643 | rxq->rx_curr_desc = 0; |
| 1644 | rxq->rx_used_desc = 0; |
| 1645 | |
| 1646 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1647 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1648 | if (index == 0 && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1649 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1650 | mp->rx_desc_sram_size); |
| 1651 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1652 | } else { |
| 1653 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1654 | &rxq->rx_desc_dma, |
| 1655 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1656 | } |
| 1657 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1658 | if (rxq->rx_desc_area == NULL) { |
| 1659 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1660 | "can't allocate rx ring (%d bytes)\n", size); |
| 1661 | goto out; |
| 1662 | } |
| 1663 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1664 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1665 | rxq->rx_desc_area_size = size; |
| 1666 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1667 | GFP_KERNEL); |
| 1668 | if (rxq->rx_skb == NULL) { |
| 1669 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1670 | "can't allocate rx skb ring\n"); |
| 1671 | goto out_free; |
| 1672 | } |
| 1673 | |
| 1674 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1675 | for (i = 0; i < rxq->rx_ring_size; i++) { |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1676 | int nexti; |
| 1677 | |
| 1678 | nexti = i + 1; |
| 1679 | if (nexti == rxq->rx_ring_size) |
| 1680 | nexti = 0; |
| 1681 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1682 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1683 | nexti * sizeof(struct rx_desc); |
| 1684 | } |
| 1685 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1686 | return 0; |
| 1687 | |
| 1688 | |
| 1689 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1690 | if (index == 0 && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1691 | iounmap(rxq->rx_desc_area); |
| 1692 | else |
| 1693 | dma_free_coherent(NULL, size, |
| 1694 | rxq->rx_desc_area, |
| 1695 | rxq->rx_desc_dma); |
| 1696 | |
| 1697 | out: |
| 1698 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1699 | } |
| 1700 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1701 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1702 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1703 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1704 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1705 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1706 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1707 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1708 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1709 | if (rxq->rx_skb[i]) { |
| 1710 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1711 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1712 | } |
| 1713 | } |
| 1714 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1715 | if (rxq->rx_desc_count) { |
| 1716 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1717 | "error freeing rx ring -- %d skbs stuck\n", |
| 1718 | rxq->rx_desc_count); |
| 1719 | } |
| 1720 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1721 | if (rxq->index == 0 && |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1722 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1723 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1724 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1725 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1726 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1727 | |
| 1728 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1729 | } |
| 1730 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1731 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1732 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1733 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1734 | struct tx_desc *tx_desc; |
| 1735 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1736 | int i; |
| 1737 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1738 | txq->index = index; |
| 1739 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1740 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1741 | |
| 1742 | txq->tx_desc_count = 0; |
| 1743 | txq->tx_curr_desc = 0; |
| 1744 | txq->tx_used_desc = 0; |
| 1745 | |
| 1746 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1747 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1748 | if (index == 0 && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1749 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1750 | mp->tx_desc_sram_size); |
| 1751 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1752 | } else { |
| 1753 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1754 | &txq->tx_desc_dma, |
| 1755 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1756 | } |
| 1757 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1758 | if (txq->tx_desc_area == NULL) { |
| 1759 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1760 | "can't allocate tx ring (%d bytes)\n", size); |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 1761 | return -ENOMEM; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1762 | } |
| 1763 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1764 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1765 | txq->tx_desc_area_size = size; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1766 | |
| 1767 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1768 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1769 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1770 | int nexti; |
| 1771 | |
| 1772 | nexti = i + 1; |
| 1773 | if (nexti == txq->tx_ring_size) |
| 1774 | nexti = 0; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1775 | |
| 1776 | txd->cmd_sts = 0; |
| 1777 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1778 | nexti * sizeof(struct tx_desc); |
| 1779 | } |
| 1780 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 1781 | skb_queue_head_init(&txq->tx_skb); |
| 1782 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1783 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1784 | } |
| 1785 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1786 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1787 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1788 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1789 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1790 | txq_disable(txq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1791 | txq_reclaim(txq, txq->tx_ring_size, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1792 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1793 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1794 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1795 | if (txq->index == 0 && |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1796 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1797 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1798 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1799 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1800 | txq->tx_desc_area, txq->tx_desc_dma); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1801 | } |
| 1802 | |
| 1803 | |
| 1804 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1805 | static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp) |
| 1806 | { |
| 1807 | u32 int_cause; |
| 1808 | u32 int_cause_ext; |
| 1809 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1810 | int_cause = rdlp(mp, INT_CAUSE) & (INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1811 | if (int_cause == 0) |
| 1812 | return 0; |
| 1813 | |
| 1814 | int_cause_ext = 0; |
| 1815 | if (int_cause & INT_EXT) |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1816 | int_cause_ext = rdlp(mp, INT_CAUSE_EXT); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1817 | |
| 1818 | int_cause &= INT_TX_END | INT_RX; |
| 1819 | if (int_cause) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1820 | wrlp(mp, INT_CAUSE, ~int_cause); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1821 | mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) & |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1822 | ~(rdlp(mp, TXQ_COMMAND) & 0xff); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1823 | mp->work_rx |= (int_cause & INT_RX) >> 2; |
| 1824 | } |
| 1825 | |
| 1826 | int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX; |
| 1827 | if (int_cause_ext) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1828 | wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1829 | if (int_cause_ext & INT_EXT_LINK_PHY) |
| 1830 | mp->work_link = 1; |
| 1831 | mp->work_tx |= int_cause_ext & INT_EXT_TX; |
| 1832 | } |
| 1833 | |
| 1834 | return 1; |
| 1835 | } |
| 1836 | |
| 1837 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
| 1838 | { |
| 1839 | struct net_device *dev = (struct net_device *)dev_id; |
| 1840 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1841 | |
| 1842 | if (unlikely(!mv643xx_eth_collect_events(mp))) |
| 1843 | return IRQ_NONE; |
| 1844 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1845 | wrlp(mp, INT_MASK, 0); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1846 | napi_schedule(&mp->napi); |
| 1847 | |
| 1848 | return IRQ_HANDLED; |
| 1849 | } |
| 1850 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1851 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1852 | { |
| 1853 | struct net_device *dev = mp->dev; |
| 1854 | u32 port_status; |
| 1855 | int speed; |
| 1856 | int duplex; |
| 1857 | int fc; |
| 1858 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1859 | port_status = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1860 | if (!(port_status & LINK_UP)) { |
| 1861 | if (netif_carrier_ok(dev)) { |
| 1862 | int i; |
| 1863 | |
| 1864 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 1865 | |
| 1866 | netif_carrier_off(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1867 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1868 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1869 | struct tx_queue *txq = mp->txq + i; |
| 1870 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1871 | txq_reclaim(txq, txq->tx_ring_size, 1); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1872 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1873 | } |
| 1874 | } |
| 1875 | return; |
| 1876 | } |
| 1877 | |
| 1878 | switch (port_status & PORT_SPEED_MASK) { |
| 1879 | case PORT_SPEED_10: |
| 1880 | speed = 10; |
| 1881 | break; |
| 1882 | case PORT_SPEED_100: |
| 1883 | speed = 100; |
| 1884 | break; |
| 1885 | case PORT_SPEED_1000: |
| 1886 | speed = 1000; |
| 1887 | break; |
| 1888 | default: |
| 1889 | speed = -1; |
| 1890 | break; |
| 1891 | } |
| 1892 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1893 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1894 | |
| 1895 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " |
| 1896 | "flow control %sabled\n", dev->name, |
| 1897 | speed, duplex ? "full" : "half", |
| 1898 | fc ? "en" : "dis"); |
| 1899 | |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 1900 | if (!netif_carrier_ok(dev)) |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1901 | netif_carrier_on(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1902 | } |
| 1903 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1904 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1905 | { |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1906 | struct mv643xx_eth_private *mp; |
| 1907 | int work_done; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1908 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1909 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1910 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1911 | mp->work_rx_refill |= mp->work_rx_oom; |
| 1912 | mp->work_rx_oom = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1913 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1914 | work_done = 0; |
| 1915 | while (work_done < budget) { |
| 1916 | u8 queue_mask; |
| 1917 | int queue; |
| 1918 | int work_tbd; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1919 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1920 | if (mp->work_link) { |
| 1921 | mp->work_link = 0; |
| 1922 | handle_link_event(mp); |
| 1923 | continue; |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1924 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1925 | |
| 1926 | queue_mask = mp->work_tx | mp->work_tx_end | |
| 1927 | mp->work_rx | mp->work_rx_refill; |
| 1928 | if (!queue_mask) { |
| 1929 | if (mv643xx_eth_collect_events(mp)) |
| 1930 | continue; |
| 1931 | break; |
| 1932 | } |
| 1933 | |
| 1934 | queue = fls(queue_mask) - 1; |
| 1935 | queue_mask = 1 << queue; |
| 1936 | |
| 1937 | work_tbd = budget - work_done; |
| 1938 | if (work_tbd > 16) |
| 1939 | work_tbd = 16; |
| 1940 | |
| 1941 | if (mp->work_tx_end & queue_mask) { |
| 1942 | txq_kick(mp->txq + queue); |
| 1943 | } else if (mp->work_tx & queue_mask) { |
| 1944 | work_done += txq_reclaim(mp->txq + queue, work_tbd, 0); |
| 1945 | txq_maybe_wake(mp->txq + queue); |
| 1946 | } else if (mp->work_rx & queue_mask) { |
| 1947 | work_done += rxq_process(mp->rxq + queue, work_tbd); |
| 1948 | } else if (mp->work_rx_refill & queue_mask) { |
| 1949 | work_done += rxq_refill(mp->rxq + queue, work_tbd); |
| 1950 | } else { |
| 1951 | BUG(); |
| 1952 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1953 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1954 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1955 | if (work_done < budget) { |
| 1956 | if (mp->work_rx_oom) |
| 1957 | mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); |
| 1958 | napi_complete(napi); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1959 | wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1960 | } |
| 1961 | |
| 1962 | return work_done; |
| 1963 | } |
| 1964 | |
| 1965 | static inline void oom_timer_wrapper(unsigned long data) |
| 1966 | { |
| 1967 | struct mv643xx_eth_private *mp = (void *)data; |
| 1968 | |
| 1969 | napi_schedule(&mp->napi); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1970 | } |
| 1971 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1972 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1973 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1974 | int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1975 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1976 | data = phy_read(mp->phy, MII_BMCR); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1977 | if (data < 0) |
| 1978 | return; |
| 1979 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1980 | data |= BMCR_RESET; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1981 | if (phy_write(mp->phy, MII_BMCR, data) < 0) |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1982 | return; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1983 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1984 | do { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1985 | data = phy_read(mp->phy, MII_BMCR); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 1986 | } while (data >= 0 && data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1987 | } |
| 1988 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1989 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1990 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1991 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1992 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1993 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1994 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1995 | * Perform PHY reset, if there is a PHY. |
| 1996 | */ |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1997 | if (mp->phy != NULL) { |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1998 | struct ethtool_cmd cmd; |
| 1999 | |
| 2000 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 2001 | phy_reset(mp); |
| 2002 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2003 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2004 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2005 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2006 | * Configure basic link parameters. |
| 2007 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2008 | pscr = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2009 | |
| 2010 | pscr |= SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2011 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2012 | |
| 2013 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2014 | if (mp->phy == NULL) |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2015 | pscr |= FORCE_LINK_PASS; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2016 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2017 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2018 | wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2019 | |
| 2020 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2021 | * Configure TX path and queues. |
| 2022 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2023 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2024 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2025 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2026 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 2027 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2028 | txq_set_rate(txq, 1000000000, 16777216); |
| 2029 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2030 | } |
| 2031 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2032 | /* |
| 2033 | * Add configured unicast address to address filter table. |
| 2034 | */ |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 2035 | mv643xx_eth_program_unicast_filter(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2036 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 2037 | /* |
| 2038 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
Lennert Buytenhek | 170e710 | 2008-09-19 02:58:50 +0200 | [diff] [blame] | 2039 | * frames to RX queue #0, and include the pseudo-header when |
| 2040 | * calculating receive checksums. |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 2041 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2042 | wrlp(mp, PORT_CONFIG, 0x02000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2043 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 2044 | /* |
| 2045 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 2046 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2047 | wrlp(mp, PORT_CONFIG_EXT, 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2048 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2049 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2050 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2051 | */ |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2052 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2053 | struct rx_queue *rxq = mp->rxq + i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2054 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2055 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2056 | addr = (u32)rxq->rx_desc_dma; |
| 2057 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2058 | wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2059 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2060 | rxq_enable(rxq); |
| 2061 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2062 | } |
| 2063 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2064 | 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] | 2065 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2066 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2067 | u32 val; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2068 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2069 | val = rdlp(mp, SDMA_CONFIG); |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2070 | if (mp->shared->extended_rx_coal_limit) { |
| 2071 | if (coal > 0xffff) |
| 2072 | coal = 0xffff; |
| 2073 | val &= ~0x023fff80; |
| 2074 | val |= (coal & 0x8000) << 10; |
| 2075 | val |= (coal & 0x7fff) << 7; |
| 2076 | } else { |
| 2077 | if (coal > 0x3fff) |
| 2078 | coal = 0x3fff; |
| 2079 | val &= ~0x003fff00; |
| 2080 | val |= (coal & 0x3fff) << 8; |
| 2081 | } |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2082 | wrlp(mp, SDMA_CONFIG, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2083 | } |
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 | 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] | 2086 | { |
| 2087 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 2088 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2089 | if (coal > 0x3fff) |
| 2090 | coal = 0x3fff; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2091 | wrlp(mp, TX_FIFO_URGENT_THRESHOLD, (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2092 | } |
| 2093 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2094 | static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp) |
| 2095 | { |
| 2096 | int skb_size; |
| 2097 | |
| 2098 | /* |
| 2099 | * Reserve 2+14 bytes for an ethernet header (the hardware |
| 2100 | * automatically prepends 2 bytes of dummy data to each |
| 2101 | * received packet), 16 bytes for up to four VLAN tags, and |
| 2102 | * 4 bytes for the trailing FCS -- 36 bytes total. |
| 2103 | */ |
| 2104 | skb_size = mp->dev->mtu + 36; |
| 2105 | |
| 2106 | /* |
| 2107 | * Make sure that the skb size is a multiple of 8 bytes, as |
| 2108 | * the lower three bits of the receive descriptor's buffer |
| 2109 | * size field are ignored by the hardware. |
| 2110 | */ |
| 2111 | mp->skb_size = (skb_size + 7) & ~7; |
| 2112 | } |
| 2113 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2114 | static int mv643xx_eth_open(struct net_device *dev) |
| 2115 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2116 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2117 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2118 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2119 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2120 | wrlp(mp, INT_CAUSE, 0); |
| 2121 | wrlp(mp, INT_CAUSE_EXT, 0); |
| 2122 | rdlp(mp, INT_CAUSE_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2123 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2124 | err = request_irq(dev->irq, mv643xx_eth_irq, |
Lennert Buytenhek | 2a1867a | 2008-08-23 23:43:38 +0200 | [diff] [blame] | 2125 | IRQF_SHARED, dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2126 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2127 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2128 | return -EAGAIN; |
| 2129 | } |
| 2130 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2131 | mv643xx_eth_recalc_skb_size(mp); |
| 2132 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2133 | napi_enable(&mp->napi); |
| 2134 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2135 | skb_queue_head_init(&mp->rx_recycle); |
| 2136 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2137 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2138 | err = rxq_init(mp, i); |
| 2139 | if (err) { |
| 2140 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2141 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2142 | goto out; |
| 2143 | } |
| 2144 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2145 | rxq_refill(mp->rxq + i, INT_MAX); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2146 | } |
| 2147 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2148 | if (mp->work_rx_oom) { |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2149 | mp->rx_oom.expires = jiffies + (HZ / 10); |
| 2150 | add_timer(&mp->rx_oom); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2151 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2152 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2153 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2154 | err = txq_init(mp, i); |
| 2155 | if (err) { |
| 2156 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2157 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2158 | goto out_free; |
| 2159 | } |
| 2160 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2161 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2162 | netif_carrier_off(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2163 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2164 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2165 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2166 | set_rx_coal(mp, 0); |
| 2167 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2168 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2169 | wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX); |
| 2170 | wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2171 | |
| 2172 | return 0; |
| 2173 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2174 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2175 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2176 | for (i = 0; i < mp->rxq_count; i++) |
| 2177 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2178 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2179 | free_irq(dev->irq, dev); |
| 2180 | |
| 2181 | return err; |
| 2182 | } |
| 2183 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2184 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2185 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2186 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2187 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2188 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2189 | for (i = 0; i < mp->rxq_count; i++) |
| 2190 | rxq_disable(mp->rxq + i); |
| 2191 | for (i = 0; i < mp->txq_count; i++) |
| 2192 | txq_disable(mp->txq + i); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2193 | |
| 2194 | while (1) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2195 | u32 ps = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2196 | |
| 2197 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2198 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2199 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2200 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2201 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2202 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2203 | data = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2204 | data &= ~(SERIAL_PORT_ENABLE | |
| 2205 | DO_NOT_FORCE_LINK_FAIL | |
| 2206 | FORCE_LINK_PASS); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2207 | wrlp(mp, PORT_SERIAL_CONTROL, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2208 | } |
| 2209 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2210 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2211 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2212 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2213 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2214 | |
Gabriel Paubert | fe65e70 | 2009-01-19 17:18:09 -0800 | [diff] [blame] | 2215 | wrlp(mp, INT_MASK_EXT, 0x00000000); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2216 | wrlp(mp, INT_MASK, 0x00000000); |
| 2217 | rdlp(mp, INT_MASK); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2218 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 2219 | del_timer_sync(&mp->mib_counters_timer); |
| 2220 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2221 | napi_disable(&mp->napi); |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2222 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2223 | del_timer_sync(&mp->rx_oom); |
| 2224 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2225 | netif_carrier_off(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2226 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2227 | free_irq(dev->irq, dev); |
| 2228 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2229 | port_reset(mp); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 2230 | mv643xx_eth_get_stats(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2231 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2232 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2233 | skb_queue_purge(&mp->rx_recycle); |
| 2234 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2235 | for (i = 0; i < mp->rxq_count; i++) |
| 2236 | rxq_deinit(mp->rxq + i); |
| 2237 | for (i = 0; i < mp->txq_count; i++) |
| 2238 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2239 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2240 | return 0; |
| 2241 | } |
| 2242 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2243 | 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] | 2244 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2245 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2246 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2247 | if (mp->phy != NULL) |
| 2248 | return phy_mii_ioctl(mp->phy, if_mii(ifr), cmd); |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2249 | |
| 2250 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2251 | } |
| 2252 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2253 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2254 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2255 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2256 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2257 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2258 | return -EINVAL; |
| 2259 | |
| 2260 | dev->mtu = new_mtu; |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2261 | mv643xx_eth_recalc_skb_size(mp); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2262 | tx_set_rate(mp, 1000000000, 16777216); |
| 2263 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2264 | if (!netif_running(dev)) |
| 2265 | return 0; |
| 2266 | |
| 2267 | /* |
| 2268 | * Stop and then re-open the interface. This will allocate RX |
| 2269 | * skbs of the new MTU. |
| 2270 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2271 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2272 | */ |
| 2273 | mv643xx_eth_stop(dev); |
| 2274 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2275 | dev_printk(KERN_ERR, &dev->dev, |
| 2276 | "fatal error on re-opening device after " |
| 2277 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2278 | } |
| 2279 | |
| 2280 | return 0; |
| 2281 | } |
| 2282 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2283 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2284 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2285 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2286 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2287 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2288 | if (netif_running(mp->dev)) { |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2289 | netif_tx_stop_all_queues(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2290 | port_reset(mp); |
| 2291 | port_start(mp); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2292 | netif_tx_wake_all_queues(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2293 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2294 | } |
| 2295 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2296 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2297 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2298 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2299 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2300 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2301 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2302 | schedule_work(&mp->tx_timeout_task); |
| 2303 | } |
| 2304 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2305 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2306 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2307 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2308 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2309 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2310 | wrlp(mp, INT_MASK, 0x00000000); |
| 2311 | rdlp(mp, INT_MASK); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2312 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2313 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2314 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2315 | wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2316 | } |
| 2317 | #endif |
| 2318 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2319 | |
| 2320 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2321 | static void |
| 2322 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2323 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2324 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2325 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2326 | u32 win_enable; |
| 2327 | u32 win_protect; |
| 2328 | int i; |
| 2329 | |
| 2330 | for (i = 0; i < 6; i++) { |
| 2331 | writel(0, base + WINDOW_BASE(i)); |
| 2332 | writel(0, base + WINDOW_SIZE(i)); |
| 2333 | if (i < 4) |
| 2334 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2335 | } |
| 2336 | |
| 2337 | win_enable = 0x3f; |
| 2338 | win_protect = 0; |
| 2339 | |
| 2340 | for (i = 0; i < dram->num_cs; i++) { |
| 2341 | struct mbus_dram_window *cs = dram->cs + i; |
| 2342 | |
| 2343 | writel((cs->base & 0xffff0000) | |
| 2344 | (cs->mbus_attr << 8) | |
| 2345 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2346 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2347 | |
| 2348 | win_enable &= ~(1 << i); |
| 2349 | win_protect |= 3 << (2 * i); |
| 2350 | } |
| 2351 | |
| 2352 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2353 | msp->win_protect = win_protect; |
| 2354 | } |
| 2355 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2356 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2357 | { |
| 2358 | /* |
| 2359 | * Check whether we have a 14-bit coal limit field in bits |
| 2360 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2361 | * SDMA config register. |
| 2362 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2363 | writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG); |
| 2364 | if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000) |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2365 | msp->extended_rx_coal_limit = 1; |
| 2366 | else |
| 2367 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2368 | |
| 2369 | /* |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2370 | * Check whether the MAC supports TX rate control, and if |
| 2371 | * yes, whether its associated registers are in the old or |
| 2372 | * the new place. |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2373 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2374 | writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED); |
| 2375 | if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) { |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2376 | msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT; |
| 2377 | } else { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2378 | writel(7, msp->base + 0x0400 + TX_BW_RATE); |
| 2379 | if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7) |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2380 | msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT; |
| 2381 | else |
| 2382 | msp->tx_bw_control = TX_BW_CONTROL_ABSENT; |
| 2383 | } |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2384 | } |
| 2385 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2386 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2387 | { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 2388 | static int mv643xx_eth_version_printed; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2389 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2390 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2391 | struct resource *res; |
| 2392 | int ret; |
| 2393 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2394 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | 7dde154 | 2008-07-15 12:20:30 +0200 | [diff] [blame] | 2395 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
| 2396 | "driver version %s\n", mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2397 | |
| 2398 | ret = -EINVAL; |
| 2399 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2400 | if (res == NULL) |
| 2401 | goto out; |
| 2402 | |
| 2403 | ret = -ENOMEM; |
| 2404 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2405 | if (msp == NULL) |
| 2406 | goto out; |
| 2407 | memset(msp, 0, sizeof(*msp)); |
| 2408 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2409 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2410 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2411 | goto out_free; |
| 2412 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2413 | /* |
| 2414 | * Set up and register SMI bus. |
| 2415 | */ |
| 2416 | if (pd == NULL || pd->shared_smi == NULL) { |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2417 | msp->smi_bus = mdiobus_alloc(); |
| 2418 | if (msp->smi_bus == NULL) |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2419 | goto out_unmap; |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2420 | |
| 2421 | msp->smi_bus->priv = msp; |
| 2422 | msp->smi_bus->name = "mv643xx_eth smi"; |
| 2423 | msp->smi_bus->read = smi_bus_read; |
| 2424 | msp->smi_bus->write = smi_bus_write, |
| 2425 | snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id); |
| 2426 | msp->smi_bus->parent = &pdev->dev; |
| 2427 | msp->smi_bus->phy_mask = 0xffffffff; |
| 2428 | if (mdiobus_register(msp->smi_bus) < 0) |
| 2429 | goto out_free_mii_bus; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2430 | msp->smi = msp; |
| 2431 | } else { |
Lennert Buytenhek | fc0eb9f | 2008-08-26 12:56:56 +0200 | [diff] [blame] | 2432 | msp->smi = platform_get_drvdata(pd->shared_smi); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2433 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2434 | |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2435 | msp->err_interrupt = NO_IRQ; |
| 2436 | init_waitqueue_head(&msp->smi_busy_wait); |
| 2437 | |
| 2438 | /* |
| 2439 | * Check whether the error interrupt is hooked up. |
| 2440 | */ |
| 2441 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2442 | if (res != NULL) { |
| 2443 | int err; |
| 2444 | |
| 2445 | err = request_irq(res->start, mv643xx_eth_err_irq, |
| 2446 | IRQF_SHARED, "mv643xx_eth", msp); |
| 2447 | if (!err) { |
| 2448 | writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK); |
| 2449 | msp->err_interrupt = res->start; |
| 2450 | } |
| 2451 | } |
| 2452 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2453 | /* |
| 2454 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2455 | */ |
| 2456 | if (pd != NULL && pd->dram != NULL) |
| 2457 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2458 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2459 | /* |
| 2460 | * Detect hardware parameters. |
| 2461 | */ |
| 2462 | 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] | 2463 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2464 | |
| 2465 | platform_set_drvdata(pdev, msp); |
| 2466 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2467 | return 0; |
| 2468 | |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2469 | out_free_mii_bus: |
| 2470 | mdiobus_free(msp->smi_bus); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2471 | out_unmap: |
| 2472 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2473 | out_free: |
| 2474 | kfree(msp); |
| 2475 | out: |
| 2476 | return ret; |
| 2477 | } |
| 2478 | |
| 2479 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2480 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2481 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2482 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2483 | |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2484 | if (pd == NULL || pd->shared_smi == NULL) { |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2485 | mdiobus_unregister(msp->smi_bus); |
Lennert Buytenhek | bcb3336 | 2008-11-18 04:28:35 +0000 | [diff] [blame] | 2486 | mdiobus_free(msp->smi_bus); |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2487 | } |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2488 | if (msp->err_interrupt != NO_IRQ) |
| 2489 | free_irq(msp->err_interrupt, msp); |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2490 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2491 | kfree(msp); |
| 2492 | |
| 2493 | return 0; |
| 2494 | } |
| 2495 | |
| 2496 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2497 | .probe = mv643xx_eth_shared_probe, |
| 2498 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2499 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2500 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2501 | .owner = THIS_MODULE, |
| 2502 | }, |
| 2503 | }; |
| 2504 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2505 | 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] | 2506 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2507 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2508 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2509 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2510 | data = rdl(mp, PHY_ADDR); |
| 2511 | data &= ~(0x1f << addr_shift); |
| 2512 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2513 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2514 | } |
| 2515 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2516 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2517 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2518 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2519 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2520 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2521 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2522 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2523 | } |
| 2524 | |
| 2525 | static void set_params(struct mv643xx_eth_private *mp, |
| 2526 | struct mv643xx_eth_platform_data *pd) |
| 2527 | { |
| 2528 | struct net_device *dev = mp->dev; |
| 2529 | |
| 2530 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2531 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2532 | else |
| 2533 | uc_addr_get(mp, dev->dev_addr); |
| 2534 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2535 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2536 | if (pd->rx_queue_size) |
| 2537 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2538 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2539 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2540 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2541 | mp->rxq_count = pd->rx_queue_count ? : 1; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2542 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2543 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2544 | if (pd->tx_queue_size) |
| 2545 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2546 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2547 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2548 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2549 | mp->txq_count = pd->tx_queue_count ? : 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2550 | } |
| 2551 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2552 | static struct phy_device *phy_scan(struct mv643xx_eth_private *mp, |
| 2553 | int phy_addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2554 | { |
Lennert Buytenhek | 298cf9be | 2008-10-08 16:29:57 -0700 | [diff] [blame] | 2555 | struct mii_bus *bus = mp->shared->smi->smi_bus; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2556 | struct phy_device *phydev; |
| 2557 | int start; |
| 2558 | int num; |
| 2559 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2560 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2561 | if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) { |
| 2562 | start = phy_addr_get(mp) & 0x1f; |
| 2563 | num = 32; |
| 2564 | } else { |
| 2565 | start = phy_addr & 0x1f; |
| 2566 | num = 1; |
| 2567 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2568 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2569 | phydev = NULL; |
| 2570 | for (i = 0; i < num; i++) { |
| 2571 | int addr = (start + i) & 0x1f; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2572 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2573 | if (bus->phy_map[addr] == NULL) |
| 2574 | mdiobus_scan(bus, addr); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2575 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2576 | if (phydev == NULL) { |
| 2577 | phydev = bus->phy_map[addr]; |
| 2578 | if (phydev != NULL) |
| 2579 | phy_addr_set(mp, addr); |
| 2580 | } |
| 2581 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2582 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2583 | return phydev; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2584 | } |
| 2585 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2586 | static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2587 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2588 | struct phy_device *phy = mp->phy; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2589 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2590 | phy_reset(mp); |
| 2591 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2592 | phy_attach(mp->dev, phy->dev.bus_id, 0, PHY_INTERFACE_MODE_GMII); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2593 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2594 | if (speed == 0) { |
| 2595 | phy->autoneg = AUTONEG_ENABLE; |
| 2596 | phy->speed = 0; |
| 2597 | phy->duplex = 0; |
| 2598 | phy->advertising = phy->supported | ADVERTISED_Autoneg; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2599 | } else { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2600 | phy->autoneg = AUTONEG_DISABLE; |
| 2601 | phy->advertising = 0; |
| 2602 | phy->speed = speed; |
| 2603 | phy->duplex = duplex; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2604 | } |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2605 | phy_start_aneg(phy); |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2606 | } |
| 2607 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2608 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2609 | { |
| 2610 | u32 pscr; |
| 2611 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2612 | pscr = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2613 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2614 | pscr &= ~SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2615 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2616 | } |
| 2617 | |
| 2618 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2619 | if (mp->phy == NULL) { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2620 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2621 | if (speed == SPEED_1000) |
| 2622 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2623 | else if (speed == SPEED_100) |
| 2624 | pscr |= SET_MII_SPEED_TO_100; |
| 2625 | |
| 2626 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2627 | |
| 2628 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2629 | if (duplex == DUPLEX_FULL) |
| 2630 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2631 | } |
| 2632 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2633 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2634 | } |
| 2635 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2636 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2638 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2639 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2640 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2641 | struct resource *res; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2642 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2643 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2644 | pd = pdev->dev.platform_data; |
| 2645 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2646 | dev_printk(KERN_ERR, &pdev->dev, |
| 2647 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2648 | return -ENODEV; |
| 2649 | } |
| 2650 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2651 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2652 | dev_printk(KERN_ERR, &pdev->dev, |
| 2653 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2654 | return -ENODEV; |
| 2655 | } |
| 2656 | |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2657 | dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2658 | if (!dev) |
| 2659 | return -ENOMEM; |
| 2660 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2662 | platform_set_drvdata(pdev, mp); |
| 2663 | |
| 2664 | mp->shared = platform_get_drvdata(pd->shared); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2665 | mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2666 | mp->port_num = pd->port_number; |
| 2667 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2668 | mp->dev = dev; |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2669 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2670 | set_params(mp, pd); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2671 | dev->real_num_tx_queues = mp->txq_count; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2672 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2673 | if (pd->phy_addr != MV643XX_ETH_PHY_NONE) |
| 2674 | mp->phy = phy_scan(mp, pd->phy_addr); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2675 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2676 | if (mp->phy != NULL) { |
| 2677 | phy_init(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2678 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2679 | } else { |
| 2680 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); |
| 2681 | } |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2682 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2683 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2684 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 2685 | |
| 2686 | mib_counters_clear(mp); |
| 2687 | |
| 2688 | init_timer(&mp->mib_counters_timer); |
| 2689 | mp->mib_counters_timer.data = (unsigned long)mp; |
| 2690 | mp->mib_counters_timer.function = mib_counters_timer_wrapper; |
| 2691 | mp->mib_counters_timer.expires = jiffies + 30 * HZ; |
| 2692 | add_timer(&mp->mib_counters_timer); |
| 2693 | |
| 2694 | spin_lock_init(&mp->mib_counters_lock); |
| 2695 | |
| 2696 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2697 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2698 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128); |
| 2699 | |
| 2700 | init_timer(&mp->rx_oom); |
| 2701 | mp->rx_oom.data = (unsigned long)mp; |
| 2702 | mp->rx_oom.function = oom_timer_wrapper; |
| 2703 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2705 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2706 | BUG_ON(!res); |
| 2707 | dev->irq = res->start; |
| 2708 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 2709 | dev->get_stats = mv643xx_eth_get_stats; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2710 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2711 | dev->open = mv643xx_eth_open; |
| 2712 | dev->stop = mv643xx_eth_stop; |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 2713 | dev->set_rx_mode = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2714 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2715 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2716 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2717 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2718 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2719 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2720 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2721 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2722 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2724 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2725 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2726 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2727 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2728 | |
| 2729 | if (mp->shared->win_protect) |
| 2730 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2731 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2732 | err = register_netdev(dev); |
| 2733 | if (err) |
| 2734 | goto out; |
| 2735 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 2736 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %pM\n", |
| 2737 | mp->port_num, dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2738 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2739 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2740 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2741 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2742 | return 0; |
| 2743 | |
| 2744 | out: |
| 2745 | free_netdev(dev); |
| 2746 | |
| 2747 | return err; |
| 2748 | } |
| 2749 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2750 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2751 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2752 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2753 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2754 | unregister_netdev(mp->dev); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2755 | if (mp->phy != NULL) |
| 2756 | phy_detach(mp->phy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2757 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2758 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2759 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2760 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2761 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2762 | return 0; |
| 2763 | } |
| 2764 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2765 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2766 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2767 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2768 | |
| 2769 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2770 | wrlp(mp, INT_MASK, 0); |
| 2771 | rdlp(mp, INT_MASK); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2772 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2773 | if (netif_running(mp->dev)) |
| 2774 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2775 | } |
| 2776 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2777 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2778 | .probe = mv643xx_eth_probe, |
| 2779 | .remove = mv643xx_eth_remove, |
| 2780 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2781 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2782 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2783 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2784 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2785 | }; |
| 2786 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2787 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2788 | { |
| 2789 | int rc; |
| 2790 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2791 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2792 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2793 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2794 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2795 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2796 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2797 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2798 | return rc; |
| 2799 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2800 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2801 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2802 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2803 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2804 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2805 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2807 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 2809 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 2810 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2811 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2812 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2813 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2814 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |