Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Lennert Buytenhek | 9c1bbdf | 2007-10-19 04:11:03 +0200 | [diff] [blame] | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
| 4 | * |
| 5 | * Based on the 64360 driver from: |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
| 7 | * Rabeeh Khoury <rabeeh@marvell.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 2003 PMC-Sierra, Inc., |
Olaf Hering | 3bb8a18 | 2006-01-05 22:45:45 -0800 | [diff] [blame] | 10 | * written by Manish Lachwani |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * |
| 12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> |
| 13 | * |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Dale Farnsworth <dale@farnsworth.org> |
| 16 | * |
| 17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> |
| 18 | * <sjhill@realitydiluted.com> |
| 19 | * |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
| 21 | * Lennert Buytenhek <buytenh@marvell.com> |
| 22 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | * This program is free software; you can redistribute it and/or |
| 24 | * modify it under the terms of the GNU General Public License |
| 25 | * as published by the Free Software Foundation; either version 2 |
| 26 | * of the License, or (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 31 | * GNU General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public License |
| 34 | * along with this program; if not, write to the Free Software |
| 35 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 36 | */ |
Lennert Buytenhek | a779d38 | 2008-06-01 00:54:05 +0200 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/init.h> |
| 39 | #include <linux/dma-mapping.h> |
Al Viro | b6298c2 | 2006-01-18 19:35:54 -0500 | [diff] [blame] | 40 | #include <linux/in.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <linux/tcp.h> |
| 42 | #include <linux/udp.h> |
| 43 | #include <linux/etherdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/delay.h> |
| 45 | #include <linux/ethtool.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 46 | #include <linux/platform_device.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 47 | #include <linux/module.h> |
| 48 | #include <linux/kernel.h> |
| 49 | #include <linux/spinlock.h> |
| 50 | #include <linux/workqueue.h> |
| 51 | #include <linux/mii.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 52 | #include <linux/mv643xx_eth.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/io.h> |
| 54 | #include <asm/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #include <asm/system.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 56 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 57 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 58 | static char mv643xx_eth_driver_version[] = "1.1"; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 59 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 60 | #define MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
| 61 | #define MV643XX_ETH_NAPI |
| 62 | #define MV643XX_ETH_TX_FAST_REFILL |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 63 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 64 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 65 | #define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1) |
| 66 | #else |
| 67 | #define MAX_DESCS_PER_SKB 1 |
| 68 | #endif |
| 69 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 70 | /* |
| 71 | * Registers shared between all ports. |
| 72 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 73 | #define PHY_ADDR 0x0000 |
| 74 | #define SMI_REG 0x0004 |
| 75 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 76 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 77 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 78 | #define WINDOW_BAR_ENABLE 0x0290 |
| 79 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 80 | |
| 81 | /* |
| 82 | * Per-port registers. |
| 83 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 84 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 85 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 86 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
| 87 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) |
| 88 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) |
| 89 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) |
| 90 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) |
| 91 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 92 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 93 | #define TX_IN_PROGRESS 0x00000080 |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame^] | 94 | #define PORT_SPEED_MASK 0x00000030 |
| 95 | #define PORT_SPEED_1000 0x00000010 |
| 96 | #define PORT_SPEED_100 0x00000020 |
| 97 | #define PORT_SPEED_10 0x00000000 |
| 98 | #define FLOW_CONTROL_ENABLED 0x00000008 |
| 99 | #define FULL_DUPLEX 0x00000004 |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 100 | #define LINK_UP 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 101 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 102 | #define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) |
| 103 | #define TX_BW_RATE(p) (0x0450 + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 104 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 105 | #define TX_BW_BURST(p) (0x045c + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 106 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 107 | #define INT_TX_END_0 0x00080000 |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 108 | #define INT_TX_END 0x07f80000 |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 109 | #define INT_RX 0x0007fbfc |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 110 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 111 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 112 | #define INT_EXT_LINK 0x00100000 |
| 113 | #define INT_EXT_PHY 0x00010000 |
| 114 | #define INT_EXT_TX_ERROR_0 0x00000100 |
| 115 | #define INT_EXT_TX_0 0x00000001 |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 116 | #define INT_EXT_TX 0x0000ffff |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 117 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 118 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 119 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 120 | #define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) |
| 121 | #define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) |
| 122 | #define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) |
| 123 | #define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 124 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 125 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 126 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
| 127 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) |
| 128 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) |
| 129 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 130 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 131 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 132 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 133 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 134 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 135 | |
| 136 | /* |
| 137 | * SDMA configuration register. |
| 138 | */ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 139 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 140 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 141 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 142 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 143 | |
| 144 | #if defined(__BIG_ENDIAN) |
| 145 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 146 | RX_BURST_SIZE_16_64BIT | \ |
| 147 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 148 | #elif defined(__LITTLE_ENDIAN) |
| 149 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 150 | RX_BURST_SIZE_16_64BIT | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 151 | BLM_RX_NO_SWAP | \ |
| 152 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | cd4ccf7 | 2008-07-10 14:40:51 +0200 | [diff] [blame] | 153 | TX_BURST_SIZE_16_64BIT |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 154 | #else |
| 155 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 156 | #endif |
| 157 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 158 | |
| 159 | /* |
| 160 | * Port serial control register. |
| 161 | */ |
| 162 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 163 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 164 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 165 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 166 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 167 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 168 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 169 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 170 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 171 | #define FORCE_LINK_PASS (1 << 1) |
| 172 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 173 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 174 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 175 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 176 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 177 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 178 | /* |
| 179 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 180 | */ |
| 181 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 182 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 183 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 184 | u16 buf_size; /* Buffer size */ |
| 185 | u32 cmd_sts; /* Descriptor command status */ |
| 186 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 187 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 188 | }; |
| 189 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 190 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 191 | u16 byte_cnt; /* buffer byte count */ |
| 192 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 193 | u32 cmd_sts; /* Command/status field */ |
| 194 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 195 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 196 | }; |
| 197 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 198 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 199 | u32 cmd_sts; /* Descriptor command status */ |
| 200 | u16 buf_size; /* Buffer size */ |
| 201 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 202 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 203 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 204 | }; |
| 205 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 206 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 207 | u32 cmd_sts; /* Command/status field */ |
| 208 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 209 | u16 byte_cnt; /* buffer byte count */ |
| 210 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 211 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 212 | }; |
| 213 | #else |
| 214 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 215 | #endif |
| 216 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 217 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 218 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 219 | |
| 220 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 221 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 222 | |
| 223 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 224 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 225 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 226 | #define RX_FIRST_DESC 0x08000000 |
| 227 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 228 | |
| 229 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 230 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 231 | #define GEN_CRC 0x00400000 |
| 232 | #define TX_FIRST_DESC 0x00200000 |
| 233 | #define TX_LAST_DESC 0x00100000 |
| 234 | #define ZERO_PADDING 0x00080000 |
| 235 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 236 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 237 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 238 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 239 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 240 | |
| 241 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 242 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 243 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 244 | /* |
| 245 | * Ethernet controller base address. |
| 246 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 247 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 248 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 249 | /* |
| 250 | * Protects access to SMI_REG, which is shared between ports. |
| 251 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 252 | spinlock_t phy_lock; |
| 253 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 254 | /* |
| 255 | * Per-port MBUS window access register value. |
| 256 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 257 | u32 win_protect; |
| 258 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 259 | /* |
| 260 | * Hardware-specific parameters. |
| 261 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 262 | unsigned int t_clk; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 263 | int extended_rx_coal_limit; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 264 | int tx_bw_control_moved; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 265 | }; |
| 266 | |
| 267 | |
| 268 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 269 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 270 | u64 good_octets_received; |
| 271 | u32 bad_octets_received; |
| 272 | u32 internal_mac_transmit_err; |
| 273 | u32 good_frames_received; |
| 274 | u32 bad_frames_received; |
| 275 | u32 broadcast_frames_received; |
| 276 | u32 multicast_frames_received; |
| 277 | u32 frames_64_octets; |
| 278 | u32 frames_65_to_127_octets; |
| 279 | u32 frames_128_to_255_octets; |
| 280 | u32 frames_256_to_511_octets; |
| 281 | u32 frames_512_to_1023_octets; |
| 282 | u32 frames_1024_to_max_octets; |
| 283 | u64 good_octets_sent; |
| 284 | u32 good_frames_sent; |
| 285 | u32 excessive_collision; |
| 286 | u32 multicast_frames_sent; |
| 287 | u32 broadcast_frames_sent; |
| 288 | u32 unrec_mac_control_received; |
| 289 | u32 fc_sent; |
| 290 | u32 good_fc_received; |
| 291 | u32 bad_fc_received; |
| 292 | u32 undersize_received; |
| 293 | u32 fragments_received; |
| 294 | u32 oversize_received; |
| 295 | u32 jabber_received; |
| 296 | u32 mac_receive_error; |
| 297 | u32 bad_crc_event; |
| 298 | u32 collision; |
| 299 | u32 late_collision; |
| 300 | }; |
| 301 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 302 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 303 | int index; |
| 304 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 305 | int rx_ring_size; |
| 306 | |
| 307 | int rx_desc_count; |
| 308 | int rx_curr_desc; |
| 309 | int rx_used_desc; |
| 310 | |
| 311 | struct rx_desc *rx_desc_area; |
| 312 | dma_addr_t rx_desc_dma; |
| 313 | int rx_desc_area_size; |
| 314 | struct sk_buff **rx_skb; |
| 315 | |
| 316 | struct timer_list rx_oom; |
| 317 | }; |
| 318 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 319 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 320 | int index; |
| 321 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 322 | int tx_ring_size; |
| 323 | |
| 324 | int tx_desc_count; |
| 325 | int tx_curr_desc; |
| 326 | int tx_used_desc; |
| 327 | |
| 328 | struct tx_desc *tx_desc_area; |
| 329 | dma_addr_t tx_desc_dma; |
| 330 | int tx_desc_area_size; |
| 331 | struct sk_buff **tx_skb; |
| 332 | }; |
| 333 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 334 | struct mv643xx_eth_private { |
| 335 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 336 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 337 | |
| 338 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 339 | |
| 340 | struct mv643xx_eth_shared_private *shared_smi; |
| 341 | int phy_addr; |
| 342 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 343 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 344 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 345 | struct mib_counters mib_counters; |
| 346 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 347 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 348 | |
| 349 | /* |
| 350 | * RX state. |
| 351 | */ |
| 352 | int default_rx_ring_size; |
| 353 | unsigned long rx_desc_sram_addr; |
| 354 | int rx_desc_sram_size; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 355 | u8 rxq_mask; |
| 356 | int rxq_primary; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 357 | struct napi_struct napi; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 358 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 359 | |
| 360 | /* |
| 361 | * TX state. |
| 362 | */ |
| 363 | int default_tx_ring_size; |
| 364 | unsigned long tx_desc_sram_addr; |
| 365 | int tx_desc_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 366 | u8 txq_mask; |
| 367 | int txq_primary; |
| 368 | struct tx_queue txq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 369 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 370 | int tx_clean_threshold; |
| 371 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 372 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 374 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 375 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 376 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 378 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 381 | 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] | 382 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 383 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | } |
| 385 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 386 | |
| 387 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 388 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 390 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 391 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 393 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 394 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 395 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 396 | } |
| 397 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 398 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 399 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 400 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 401 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 402 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 403 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 404 | static void rxq_disable(struct rx_queue *rxq) |
| 405 | { |
| 406 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 407 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 408 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 409 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 410 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 411 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 412 | } |
| 413 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 414 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 415 | { |
| 416 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 417 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index); |
| 418 | u32 addr; |
| 419 | |
| 420 | addr = (u32)txq->tx_desc_dma; |
| 421 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 422 | wrl(mp, off, addr); |
| 423 | } |
| 424 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 425 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 426 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 427 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 428 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 429 | } |
| 430 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 431 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 432 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 433 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 434 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 435 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 436 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 437 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 438 | udelay(10); |
| 439 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 440 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 441 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 442 | { |
| 443 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 444 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 445 | /* |
| 446 | * netif_{stop,wake}_queue() flow control only applies to |
| 447 | * the primary queue. |
| 448 | */ |
| 449 | BUG_ON(txq->index != mp->txq_primary); |
| 450 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 451 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 452 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | |
| 456 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 457 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 458 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 459 | static void rxq_refill(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 460 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 461 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 462 | unsigned long flags; |
| 463 | |
| 464 | spin_lock_irqsave(&mp->lock, flags); |
| 465 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 466 | while (rxq->rx_desc_count < rxq->rx_ring_size) { |
| 467 | int skb_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 468 | struct sk_buff *skb; |
| 469 | int unaligned; |
| 470 | int rx; |
| 471 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 472 | /* |
| 473 | * Reserve 2+14 bytes for an ethernet header (the |
| 474 | * hardware automatically prepends 2 bytes of dummy |
| 475 | * data to each received packet), 4 bytes for a VLAN |
| 476 | * header, and 4 bytes for the trailing FCS -- 24 |
| 477 | * bytes total. |
| 478 | */ |
| 479 | skb_size = mp->dev->mtu + 24; |
| 480 | |
| 481 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 482 | if (skb == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | break; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 484 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 485 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 486 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 487 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 488 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 489 | rxq->rx_desc_count++; |
| 490 | rx = rxq->rx_used_desc; |
| 491 | rxq->rx_used_desc = (rx + 1) % rxq->rx_ring_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 492 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 493 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 494 | skb_size, DMA_FROM_DEVICE); |
| 495 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 496 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 497 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 498 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 499 | RX_ENABLE_INTERRUPT; |
| 500 | wmb(); |
| 501 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 502 | /* |
| 503 | * The hardware automatically prepends 2 bytes of |
| 504 | * dummy data to each received packet, so that the |
| 505 | * IP header ends up 16-byte aligned. |
| 506 | */ |
| 507 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 509 | |
Lennert Buytenhek | 12e4ab7 | 2008-06-02 01:58:01 +0200 | [diff] [blame] | 510 | if (rxq->rx_desc_count != rxq->rx_ring_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 511 | rxq->rx_oom.expires = jiffies + (HZ / 10); |
| 512 | add_timer(&rxq->rx_oom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 514 | |
| 515 | spin_unlock_irqrestore(&mp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | } |
| 517 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 518 | static inline void rxq_refill_timer_wrapper(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 520 | rxq_refill((struct rx_queue *)data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | } |
| 522 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 523 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 525 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 526 | struct net_device_stats *stats = &mp->dev->stats; |
| 527 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 529 | rx = 0; |
| 530 | while (rx < budget) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 531 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 532 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 533 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 534 | unsigned long flags; |
| 535 | |
| 536 | spin_lock_irqsave(&mp->lock, flags); |
| 537 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 538 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 539 | |
| 540 | cmd_sts = rx_desc->cmd_sts; |
| 541 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 542 | spin_unlock_irqrestore(&mp->lock, flags); |
| 543 | break; |
| 544 | } |
| 545 | rmb(); |
| 546 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 547 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 548 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 549 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 550 | rxq->rx_curr_desc = (rxq->rx_curr_desc + 1) % rxq->rx_ring_size; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 551 | |
| 552 | spin_unlock_irqrestore(&mp->lock, flags); |
| 553 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 554 | dma_unmap_single(NULL, rx_desc->buf_ptr + 2, |
| 555 | mp->dev->mtu + 24, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 556 | rxq->rx_desc_count--; |
| 557 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 558 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 559 | /* |
| 560 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 561 | * |
| 562 | * Note that the descriptor byte count includes 2 dummy |
| 563 | * bytes automatically inserted by the hardware at the |
| 564 | * start of the packet (which we don't count), and a 4 |
| 565 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 566 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 568 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 569 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 571 | * In case we received a packet without first / last bits |
| 572 | * on, or the error summary bit is set, the packet needs |
| 573 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 575 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 576 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 577 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 579 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 580 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 581 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 583 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 584 | "received packet spanning " |
| 585 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 587 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 588 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | stats->rx_errors++; |
| 590 | |
| 591 | dev_kfree_skb_irq(skb); |
| 592 | } else { |
| 593 | /* |
| 594 | * The -4 is for the CRC in the trailer of the |
| 595 | * received packet |
| 596 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 597 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 599 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 601 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 602 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 604 | skb->protocol = eth_type_trans(skb, mp->dev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 605 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | netif_receive_skb(skb); |
| 607 | #else |
| 608 | netif_rx(skb); |
| 609 | #endif |
| 610 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 611 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 612 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 614 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 615 | rxq_refill(rxq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 617 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 620 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 621 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 623 | struct mv643xx_eth_private *mp; |
| 624 | int rx; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 625 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 626 | |
| 627 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 629 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | if (++mp->tx_clean_threshold > 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | mp->tx_clean_threshold = 0; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 632 | for (i = 0; i < 8; i++) |
| 633 | if (mp->txq_mask & (1 << i)) |
| 634 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 4dfc1c8 | 2008-07-15 13:34:51 +0200 | [diff] [blame] | 635 | |
| 636 | if (netif_carrier_ok(mp->dev)) { |
| 637 | spin_lock(&mp->lock); |
| 638 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
| 639 | spin_unlock(&mp->lock); |
| 640 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | } |
| 642 | #endif |
| 643 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 644 | rx = 0; |
| 645 | for (i = 7; rx < budget && i >= 0; i--) |
| 646 | if (mp->rxq_mask & (1 << i)) |
| 647 | rx += rxq_process(mp->rxq + i, budget - rx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 649 | if (rx < budget) { |
| 650 | netif_rx_complete(mp->dev, napi); |
| 651 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 652 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 653 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | } |
| 655 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 656 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | } |
| 658 | #endif |
| 659 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 660 | |
| 661 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 662 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 663 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 664 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 665 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 666 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 667 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 668 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 669 | return 1; |
| 670 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 671 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 672 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 673 | } |
| 674 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 675 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 676 | { |
| 677 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 678 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 679 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 680 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 681 | tx_desc_curr = txq->tx_curr_desc; |
| 682 | txq->tx_curr_desc = (tx_desc_curr + 1) % txq->tx_ring_size; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 683 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 684 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 685 | |
| 686 | return tx_desc_curr; |
| 687 | } |
| 688 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 689 | 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] | 690 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 691 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 692 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 693 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 694 | for (frag = 0; frag < nr_frags; frag++) { |
| 695 | skb_frag_t *this_frag; |
| 696 | int tx_index; |
| 697 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 698 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 699 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 700 | tx_index = txq_alloc_desc_index(txq); |
| 701 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 702 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 703 | /* |
| 704 | * The last fragment will generate an interrupt |
| 705 | * which will free the skb on TX completion. |
| 706 | */ |
| 707 | if (frag == nr_frags - 1) { |
| 708 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 709 | ZERO_PADDING | TX_LAST_DESC | |
| 710 | TX_ENABLE_INTERRUPT; |
| 711 | txq->tx_skb[tx_index] = skb; |
| 712 | } else { |
| 713 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 714 | txq->tx_skb[tx_index] = NULL; |
| 715 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 716 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 717 | desc->l4i_chk = 0; |
| 718 | desc->byte_cnt = this_frag->size; |
| 719 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 720 | this_frag->page_offset, |
| 721 | this_frag->size, |
| 722 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 723 | } |
| 724 | } |
| 725 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 726 | static inline __be16 sum16_as_be(__sum16 sum) |
| 727 | { |
| 728 | return (__force __be16)sum; |
| 729 | } |
| 730 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 731 | static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 732 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 733 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 734 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 735 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 736 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 737 | u32 cmd_sts; |
| 738 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 739 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 740 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 741 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 742 | tx_index = txq_alloc_desc_index(txq); |
| 743 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 744 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 745 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 746 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 747 | |
| 748 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 749 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 750 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 751 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 752 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 753 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | desc->byte_cnt = length; |
| 757 | 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] | 758 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 759 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 760 | BUG_ON(skb->protocol != htons(ETH_P_IP)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 761 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 762 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 763 | GEN_IP_V4_CHECKSUM | |
| 764 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 765 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 766 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 767 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 768 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 769 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 770 | break; |
| 771 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 772 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 773 | break; |
| 774 | default: |
| 775 | BUG(); |
| 776 | } |
| 777 | } else { |
| 778 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 779 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 780 | desc->l4i_chk = 0; |
| 781 | } |
| 782 | |
| 783 | /* ensure all other descriptors are written before first cmd_sts */ |
| 784 | wmb(); |
| 785 | desc->cmd_sts = cmd_sts; |
| 786 | |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 787 | /* clear TX_END interrupt status */ |
| 788 | wrl(mp, INT_CAUSE(mp->port_num), ~(INT_TX_END_0 << txq->index)); |
| 789 | rdl(mp, INT_CAUSE(mp->port_num)); |
| 790 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 791 | /* ensure all descriptors are written before poking hardware */ |
| 792 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 793 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 794 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 795 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 796 | } |
| 797 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 798 | 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] | 799 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 800 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 801 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 802 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 805 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 806 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 807 | dev_printk(KERN_DEBUG, &dev->dev, |
| 808 | "failed to linearize skb with tiny " |
| 809 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 810 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 811 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | spin_lock_irqsave(&mp->lock, flags); |
| 814 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 815 | txq = mp->txq + mp->txq_primary; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 816 | |
| 817 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) { |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 818 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 819 | if (txq->index == mp->txq_primary && net_ratelimit()) |
| 820 | dev_printk(KERN_ERR, &dev->dev, |
| 821 | "primary tx queue full?!\n"); |
| 822 | kfree_skb(skb); |
| 823 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 824 | } |
| 825 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 826 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 827 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | stats->tx_packets++; |
| 829 | dev->trans_start = jiffies; |
| 830 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 831 | if (txq->index == mp->txq_primary) { |
| 832 | int entries_left; |
| 833 | |
| 834 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
| 835 | if (entries_left < MAX_DESCS_PER_SKB) |
| 836 | netif_stop_queue(dev); |
| 837 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 838 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | spin_unlock_irqrestore(&mp->lock, flags); |
| 840 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 841 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | } |
| 843 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 844 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 845 | /* tx rate control **********************************************************/ |
| 846 | /* |
| 847 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 848 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 849 | */ |
| 850 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 851 | { |
| 852 | int token_rate; |
| 853 | int mtu; |
| 854 | int bucket_size; |
| 855 | |
| 856 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 857 | if (token_rate > 1023) |
| 858 | token_rate = 1023; |
| 859 | |
| 860 | mtu = (mp->dev->mtu + 255) >> 8; |
| 861 | if (mtu > 63) |
| 862 | mtu = 63; |
| 863 | |
| 864 | bucket_size = (burst + 255) >> 8; |
| 865 | if (bucket_size > 65535) |
| 866 | bucket_size = 65535; |
| 867 | |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 868 | if (mp->shared->tx_bw_control_moved) { |
| 869 | wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); |
| 870 | wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); |
| 871 | wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); |
| 872 | } else { |
| 873 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 874 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 875 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 876 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 877 | } |
| 878 | |
| 879 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 880 | { |
| 881 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 882 | int token_rate; |
| 883 | int bucket_size; |
| 884 | |
| 885 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 886 | if (token_rate > 1023) |
| 887 | token_rate = 1023; |
| 888 | |
| 889 | bucket_size = (burst + 255) >> 8; |
| 890 | if (bucket_size > 65535) |
| 891 | bucket_size = 65535; |
| 892 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 893 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
| 894 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 895 | (bucket_size << 10) | token_rate); |
| 896 | } |
| 897 | |
| 898 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 899 | { |
| 900 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 901 | int off; |
| 902 | u32 val; |
| 903 | |
| 904 | /* |
| 905 | * Turn on fixed priority mode. |
| 906 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 907 | if (mp->shared->tx_bw_control_moved) |
| 908 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 909 | else |
| 910 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 911 | |
| 912 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 913 | val |= 1 << txq->index; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 914 | wrl(mp, off, val); |
| 915 | } |
| 916 | |
| 917 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 918 | { |
| 919 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 920 | int off; |
| 921 | u32 val; |
| 922 | |
| 923 | /* |
| 924 | * Turn off fixed priority mode. |
| 925 | */ |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 926 | if (mp->shared->tx_bw_control_moved) |
| 927 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); |
| 928 | else |
| 929 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 930 | |
| 931 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 932 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 933 | wrl(mp, off, val); |
| 934 | |
| 935 | /* |
| 936 | * Configure WRR weight for this queue. |
| 937 | */ |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 938 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 939 | |
| 940 | val = rdl(mp, off); |
| 941 | val = (val & ~0xff) | (weight & 0xff); |
| 942 | wrl(mp, off, val); |
| 943 | } |
| 944 | |
| 945 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 946 | /* mii management interface *************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 947 | #define SMI_BUSY 0x10000000 |
| 948 | #define SMI_READ_VALID 0x08000000 |
| 949 | #define SMI_OPCODE_READ 0x04000000 |
| 950 | #define SMI_OPCODE_WRITE 0x00000000 |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 951 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 952 | static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, |
| 953 | unsigned int reg, unsigned int *value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 954 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 955 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 956 | unsigned long flags; |
| 957 | int i; |
| 958 | |
| 959 | /* the SMI register is a shared resource */ |
| 960 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 961 | |
| 962 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 963 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 964 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 965 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 966 | goto out; |
| 967 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 968 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 969 | } |
| 970 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 971 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 972 | |
| 973 | /* now wait for the data to be valid */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 974 | for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 975 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 976 | printk("%s: PHY read timeout\n", mp->dev->name); |
| 977 | goto out; |
| 978 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 979 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 980 | } |
| 981 | |
| 982 | *value = readl(smi_reg) & 0xffff; |
| 983 | out: |
| 984 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 985 | } |
| 986 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 987 | static void smi_reg_write(struct mv643xx_eth_private *mp, |
| 988 | unsigned int addr, |
| 989 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 990 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 991 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 992 | unsigned long flags; |
| 993 | int i; |
| 994 | |
| 995 | /* the SMI register is a shared resource */ |
| 996 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 997 | |
| 998 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 999 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1000 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1001 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 1002 | goto out; |
| 1003 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 1004 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1005 | } |
| 1006 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1007 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 1008 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1009 | out: |
| 1010 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1015 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1016 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1017 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1018 | } |
| 1019 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1020 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1021 | { |
| 1022 | int i; |
| 1023 | |
| 1024 | for (i = 0; i < 0x80; i += 4) |
| 1025 | mib_read(mp, i); |
| 1026 | } |
| 1027 | |
| 1028 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1029 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1030 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1031 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1032 | p->good_octets_received += mib_read(mp, 0x00); |
| 1033 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 1034 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1035 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1036 | p->good_frames_received += mib_read(mp, 0x10); |
| 1037 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1038 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1039 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1040 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1041 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1042 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1043 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1044 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1045 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1046 | p->good_octets_sent += mib_read(mp, 0x38); |
| 1047 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1048 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1049 | p->excessive_collision += mib_read(mp, 0x44); |
| 1050 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1051 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1052 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1053 | p->fc_sent += mib_read(mp, 0x54); |
| 1054 | p->good_fc_received += mib_read(mp, 0x58); |
| 1055 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1056 | p->undersize_received += mib_read(mp, 0x60); |
| 1057 | p->fragments_received += mib_read(mp, 0x64); |
| 1058 | p->oversize_received += mib_read(mp, 0x68); |
| 1059 | p->jabber_received += mib_read(mp, 0x6c); |
| 1060 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1061 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1062 | p->collision += mib_read(mp, 0x78); |
| 1063 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1064 | } |
| 1065 | |
| 1066 | |
| 1067 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1068 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1069 | char stat_string[ETH_GSTRING_LEN]; |
| 1070 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1071 | int netdev_off; |
| 1072 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1073 | }; |
| 1074 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1075 | #define SSTAT(m) \ |
| 1076 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1077 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1078 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1079 | #define MIBSTAT(m) \ |
| 1080 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1081 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1082 | |
| 1083 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1084 | SSTAT(rx_packets), |
| 1085 | SSTAT(tx_packets), |
| 1086 | SSTAT(rx_bytes), |
| 1087 | SSTAT(tx_bytes), |
| 1088 | SSTAT(rx_errors), |
| 1089 | SSTAT(tx_errors), |
| 1090 | SSTAT(rx_dropped), |
| 1091 | SSTAT(tx_dropped), |
| 1092 | MIBSTAT(good_octets_received), |
| 1093 | MIBSTAT(bad_octets_received), |
| 1094 | MIBSTAT(internal_mac_transmit_err), |
| 1095 | MIBSTAT(good_frames_received), |
| 1096 | MIBSTAT(bad_frames_received), |
| 1097 | MIBSTAT(broadcast_frames_received), |
| 1098 | MIBSTAT(multicast_frames_received), |
| 1099 | MIBSTAT(frames_64_octets), |
| 1100 | MIBSTAT(frames_65_to_127_octets), |
| 1101 | MIBSTAT(frames_128_to_255_octets), |
| 1102 | MIBSTAT(frames_256_to_511_octets), |
| 1103 | MIBSTAT(frames_512_to_1023_octets), |
| 1104 | MIBSTAT(frames_1024_to_max_octets), |
| 1105 | MIBSTAT(good_octets_sent), |
| 1106 | MIBSTAT(good_frames_sent), |
| 1107 | MIBSTAT(excessive_collision), |
| 1108 | MIBSTAT(multicast_frames_sent), |
| 1109 | MIBSTAT(broadcast_frames_sent), |
| 1110 | MIBSTAT(unrec_mac_control_received), |
| 1111 | MIBSTAT(fc_sent), |
| 1112 | MIBSTAT(good_fc_received), |
| 1113 | MIBSTAT(bad_fc_received), |
| 1114 | MIBSTAT(undersize_received), |
| 1115 | MIBSTAT(fragments_received), |
| 1116 | MIBSTAT(oversize_received), |
| 1117 | MIBSTAT(jabber_received), |
| 1118 | MIBSTAT(mac_receive_error), |
| 1119 | MIBSTAT(bad_crc_event), |
| 1120 | MIBSTAT(collision), |
| 1121 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1122 | }; |
| 1123 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1124 | static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1125 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1126 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1127 | int err; |
| 1128 | |
| 1129 | spin_lock_irq(&mp->lock); |
| 1130 | err = mii_ethtool_gset(&mp->mii, cmd); |
| 1131 | spin_unlock_irq(&mp->lock); |
| 1132 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1133 | /* |
| 1134 | * The MAC does not support 1000baseT_Half. |
| 1135 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1136 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1137 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1138 | |
| 1139 | return err; |
| 1140 | } |
| 1141 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1142 | static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1143 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1144 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1145 | u32 port_status; |
| 1146 | |
| 1147 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1148 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1149 | cmd->supported = SUPPORTED_MII; |
| 1150 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1151 | switch (port_status & PORT_SPEED_MASK) { |
| 1152 | case PORT_SPEED_10: |
| 1153 | cmd->speed = SPEED_10; |
| 1154 | break; |
| 1155 | case PORT_SPEED_100: |
| 1156 | cmd->speed = SPEED_100; |
| 1157 | break; |
| 1158 | case PORT_SPEED_1000: |
| 1159 | cmd->speed = SPEED_1000; |
| 1160 | break; |
| 1161 | default: |
| 1162 | cmd->speed = -1; |
| 1163 | break; |
| 1164 | } |
| 1165 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1166 | cmd->port = PORT_MII; |
| 1167 | cmd->phy_address = 0; |
| 1168 | cmd->transceiver = XCVR_INTERNAL; |
| 1169 | cmd->autoneg = AUTONEG_DISABLE; |
| 1170 | cmd->maxtxpkt = 1; |
| 1171 | cmd->maxrxpkt = 1; |
| 1172 | |
| 1173 | return 0; |
| 1174 | } |
| 1175 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1176 | static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1177 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1178 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1179 | int err; |
| 1180 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1181 | /* |
| 1182 | * The MAC does not support 1000baseT_Half. |
| 1183 | */ |
| 1184 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1185 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1186 | spin_lock_irq(&mp->lock); |
| 1187 | err = mii_ethtool_sset(&mp->mii, cmd); |
| 1188 | spin_unlock_irq(&mp->lock); |
| 1189 | |
| 1190 | return err; |
| 1191 | } |
| 1192 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1193 | static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1194 | { |
| 1195 | return -EINVAL; |
| 1196 | } |
| 1197 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1198 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1199 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1200 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1201 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1202 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1203 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1204 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1205 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1206 | } |
| 1207 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1208 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1209 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1210 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1211 | |
| 1212 | return mii_nway_restart(&mp->mii); |
| 1213 | } |
| 1214 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1215 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
| 1216 | { |
| 1217 | return -EINVAL; |
| 1218 | } |
| 1219 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1220 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1221 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1222 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1223 | |
| 1224 | return mii_link_ok(&mp->mii); |
| 1225 | } |
| 1226 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1227 | static u32 mv643xx_eth_get_link_phyless(struct net_device *dev) |
| 1228 | { |
| 1229 | return 1; |
| 1230 | } |
| 1231 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1232 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1233 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1234 | { |
| 1235 | int i; |
| 1236 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1237 | if (stringset == ETH_SS_STATS) { |
| 1238 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1239 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1240 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1241 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1242 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1243 | } |
| 1244 | } |
| 1245 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1246 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1247 | struct ethtool_stats *stats, |
| 1248 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1249 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1250 | struct mv643xx_eth_private *mp = dev->priv; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1251 | int i; |
| 1252 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1253 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1254 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1255 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1256 | const struct mv643xx_eth_stats *stat; |
| 1257 | void *p; |
| 1258 | |
| 1259 | stat = mv643xx_eth_stats + i; |
| 1260 | |
| 1261 | if (stat->netdev_off >= 0) |
| 1262 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1263 | else |
| 1264 | p = ((void *)mp) + stat->mp_off; |
| 1265 | |
| 1266 | data[i] = (stat->sizeof_stat == 8) ? |
| 1267 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1268 | } |
| 1269 | } |
| 1270 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1271 | 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] | 1272 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1273 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1274 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1275 | |
| 1276 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1277 | } |
| 1278 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1279 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1280 | .get_settings = mv643xx_eth_get_settings, |
| 1281 | .set_settings = mv643xx_eth_set_settings, |
| 1282 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1283 | .nway_reset = mv643xx_eth_nway_reset, |
| 1284 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1285 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1286 | .get_strings = mv643xx_eth_get_strings, |
| 1287 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1288 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1289 | }; |
| 1290 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1291 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
| 1292 | .get_settings = mv643xx_eth_get_settings_phyless, |
| 1293 | .set_settings = mv643xx_eth_set_settings_phyless, |
| 1294 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1295 | .nway_reset = mv643xx_eth_nway_reset_phyless, |
| 1296 | .get_link = mv643xx_eth_get_link_phyless, |
| 1297 | .set_sg = ethtool_op_set_sg, |
| 1298 | .get_strings = mv643xx_eth_get_strings, |
| 1299 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1300 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1301 | }; |
| 1302 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1303 | |
| 1304 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1305 | 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] | 1306 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1307 | unsigned int mac_h; |
| 1308 | unsigned int mac_l; |
| 1309 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1310 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1311 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1312 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1313 | addr[0] = (mac_h >> 24) & 0xff; |
| 1314 | addr[1] = (mac_h >> 16) & 0xff; |
| 1315 | addr[2] = (mac_h >> 8) & 0xff; |
| 1316 | addr[3] = mac_h & 0xff; |
| 1317 | addr[4] = (mac_l >> 8) & 0xff; |
| 1318 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1319 | } |
| 1320 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1321 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1322 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1323 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1324 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1325 | for (i = 0; i < 0x100; i += 4) { |
| 1326 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1327 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1328 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1329 | |
| 1330 | for (i = 0; i < 0x10; i += 4) |
| 1331 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1332 | } |
| 1333 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1334 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1335 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1336 | { |
| 1337 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1338 | |
| 1339 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1340 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1341 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1342 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1343 | } |
| 1344 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1345 | 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] | 1346 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1347 | unsigned int mac_h; |
| 1348 | unsigned int mac_l; |
| 1349 | int table; |
| 1350 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1351 | mac_l = (addr[4] << 8) | addr[5]; |
| 1352 | mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1353 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1354 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1355 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1356 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1357 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1358 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1359 | } |
| 1360 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1361 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1362 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1363 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1364 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1365 | /* +2 is for the offset of the HW addr type */ |
| 1366 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1367 | |
| 1368 | init_mac_tables(mp); |
| 1369 | uc_addr_set(mp, dev->dev_addr); |
| 1370 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1371 | return 0; |
| 1372 | } |
| 1373 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1374 | static int addr_crc(unsigned char *addr) |
| 1375 | { |
| 1376 | int crc = 0; |
| 1377 | int i; |
| 1378 | |
| 1379 | for (i = 0; i < 6; i++) { |
| 1380 | int j; |
| 1381 | |
| 1382 | crc = (crc ^ addr[i]) << 8; |
| 1383 | for (j = 7; j >= 0; j--) { |
| 1384 | if (crc & (0x100 << j)) |
| 1385 | crc ^= 0x107 << j; |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | return crc; |
| 1390 | } |
| 1391 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1392 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1393 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1394 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1395 | u32 port_config; |
| 1396 | struct dev_addr_list *addr; |
| 1397 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1398 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1399 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1400 | if (dev->flags & IFF_PROMISC) |
| 1401 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1402 | else |
| 1403 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1404 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1405 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1406 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1407 | int port_num = mp->port_num; |
| 1408 | u32 accept = 0x01010101; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1409 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1410 | for (i = 0; i < 0x100; i += 4) { |
| 1411 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1412 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1413 | } |
| 1414 | return; |
| 1415 | } |
| 1416 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1417 | for (i = 0; i < 0x100; i += 4) { |
| 1418 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1419 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1420 | } |
| 1421 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1422 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1423 | u8 *a = addr->da_addr; |
| 1424 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1425 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1426 | if (addr->da_addrlen != 6) |
| 1427 | continue; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1428 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1429 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1430 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1431 | set_filter_table_entry(mp, table, a[5]); |
| 1432 | } else { |
| 1433 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1434 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1435 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1436 | set_filter_table_entry(mp, table, crc); |
| 1437 | } |
| 1438 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1439 | } |
| 1440 | |
| 1441 | |
| 1442 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1443 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1444 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1445 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1446 | struct rx_desc *rx_desc; |
| 1447 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1448 | int i; |
| 1449 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1450 | rxq->index = index; |
| 1451 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1452 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1453 | |
| 1454 | rxq->rx_desc_count = 0; |
| 1455 | rxq->rx_curr_desc = 0; |
| 1456 | rxq->rx_used_desc = 0; |
| 1457 | |
| 1458 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1459 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1460 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1461 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1462 | mp->rx_desc_sram_size); |
| 1463 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1464 | } else { |
| 1465 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1466 | &rxq->rx_desc_dma, |
| 1467 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1468 | } |
| 1469 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1470 | if (rxq->rx_desc_area == NULL) { |
| 1471 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1472 | "can't allocate rx ring (%d bytes)\n", size); |
| 1473 | goto out; |
| 1474 | } |
| 1475 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1476 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1477 | rxq->rx_desc_area_size = size; |
| 1478 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1479 | GFP_KERNEL); |
| 1480 | if (rxq->rx_skb == NULL) { |
| 1481 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1482 | "can't allocate rx skb ring\n"); |
| 1483 | goto out_free; |
| 1484 | } |
| 1485 | |
| 1486 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1487 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1488 | int nexti = (i + 1) % rxq->rx_ring_size; |
| 1489 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1490 | nexti * sizeof(struct rx_desc); |
| 1491 | } |
| 1492 | |
| 1493 | init_timer(&rxq->rx_oom); |
| 1494 | rxq->rx_oom.data = (unsigned long)rxq; |
| 1495 | rxq->rx_oom.function = rxq_refill_timer_wrapper; |
| 1496 | |
| 1497 | return 0; |
| 1498 | |
| 1499 | |
| 1500 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1501 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1502 | iounmap(rxq->rx_desc_area); |
| 1503 | else |
| 1504 | dma_free_coherent(NULL, size, |
| 1505 | rxq->rx_desc_area, |
| 1506 | rxq->rx_desc_dma); |
| 1507 | |
| 1508 | out: |
| 1509 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1510 | } |
| 1511 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1512 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1513 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1514 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1515 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1516 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1517 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1518 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1519 | del_timer_sync(&rxq->rx_oom); |
| 1520 | |
| 1521 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1522 | if (rxq->rx_skb[i]) { |
| 1523 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1524 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1525 | } |
| 1526 | } |
| 1527 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1528 | if (rxq->rx_desc_count) { |
| 1529 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1530 | "error freeing rx ring -- %d skbs stuck\n", |
| 1531 | rxq->rx_desc_count); |
| 1532 | } |
| 1533 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1534 | if (rxq->index == mp->rxq_primary && |
| 1535 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1536 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1537 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1538 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1539 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1540 | |
| 1541 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1542 | } |
| 1543 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1544 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1545 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1546 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1547 | struct tx_desc *tx_desc; |
| 1548 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1549 | int i; |
| 1550 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1551 | txq->index = index; |
| 1552 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1553 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1554 | |
| 1555 | txq->tx_desc_count = 0; |
| 1556 | txq->tx_curr_desc = 0; |
| 1557 | txq->tx_used_desc = 0; |
| 1558 | |
| 1559 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1560 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1561 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1562 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1563 | mp->tx_desc_sram_size); |
| 1564 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1565 | } else { |
| 1566 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1567 | &txq->tx_desc_dma, |
| 1568 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1569 | } |
| 1570 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1571 | if (txq->tx_desc_area == NULL) { |
| 1572 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1573 | "can't allocate tx ring (%d bytes)\n", size); |
| 1574 | goto out; |
| 1575 | } |
| 1576 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1577 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1578 | txq->tx_desc_area_size = size; |
| 1579 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1580 | GFP_KERNEL); |
| 1581 | if (txq->tx_skb == NULL) { |
| 1582 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1583 | "can't allocate tx skb ring\n"); |
| 1584 | goto out_free; |
| 1585 | } |
| 1586 | |
| 1587 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1588 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1589 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1590 | int nexti = (i + 1) % txq->tx_ring_size; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1591 | |
| 1592 | txd->cmd_sts = 0; |
| 1593 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1594 | nexti * sizeof(struct tx_desc); |
| 1595 | } |
| 1596 | |
| 1597 | return 0; |
| 1598 | |
| 1599 | |
| 1600 | out_free: |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1601 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1602 | iounmap(txq->tx_desc_area); |
| 1603 | else |
| 1604 | dma_free_coherent(NULL, size, |
| 1605 | txq->tx_desc_area, |
| 1606 | txq->tx_desc_dma); |
| 1607 | |
| 1608 | out: |
| 1609 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1610 | } |
| 1611 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1612 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1613 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1614 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1615 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1616 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1617 | spin_lock_irqsave(&mp->lock, flags); |
| 1618 | while (txq->tx_desc_count > 0) { |
| 1619 | int tx_index; |
| 1620 | struct tx_desc *desc; |
| 1621 | u32 cmd_sts; |
| 1622 | struct sk_buff *skb; |
| 1623 | dma_addr_t addr; |
| 1624 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1625 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1626 | tx_index = txq->tx_used_desc; |
| 1627 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1628 | cmd_sts = desc->cmd_sts; |
| 1629 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1630 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 1631 | if (!force) |
| 1632 | break; |
| 1633 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 1634 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1635 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1636 | txq->tx_used_desc = (tx_index + 1) % txq->tx_ring_size; |
| 1637 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1638 | |
| 1639 | addr = desc->buf_ptr; |
| 1640 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1641 | skb = txq->tx_skb[tx_index]; |
| 1642 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1643 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1644 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1645 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1646 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1647 | } |
| 1648 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1649 | /* |
| 1650 | * Drop mp->lock while we free the skb. |
| 1651 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1652 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1653 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1654 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1655 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1656 | else |
| 1657 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1658 | |
| 1659 | if (skb) |
| 1660 | dev_kfree_skb_irq(skb); |
| 1661 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1662 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1663 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1664 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1665 | } |
| 1666 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1667 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1668 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1669 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1670 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1671 | txq_disable(txq); |
| 1672 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1673 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1674 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1675 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1676 | if (txq->index == mp->txq_primary && |
| 1677 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1678 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1679 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1680 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1681 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1682 | |
| 1683 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1684 | } |
| 1685 | |
| 1686 | |
| 1687 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame^] | 1688 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1689 | { |
| 1690 | struct net_device *dev = mp->dev; |
| 1691 | u32 port_status; |
| 1692 | int speed; |
| 1693 | int duplex; |
| 1694 | int fc; |
| 1695 | |
| 1696 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); |
| 1697 | if (!(port_status & LINK_UP)) { |
| 1698 | if (netif_carrier_ok(dev)) { |
| 1699 | int i; |
| 1700 | |
| 1701 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 1702 | |
| 1703 | netif_carrier_off(dev); |
| 1704 | netif_stop_queue(dev); |
| 1705 | |
| 1706 | for (i = 0; i < 8; i++) { |
| 1707 | struct tx_queue *txq = mp->txq + i; |
| 1708 | |
| 1709 | if (mp->txq_mask & (1 << i)) { |
| 1710 | txq_reclaim(txq, 1); |
| 1711 | txq_reset_hw_ptr(txq); |
| 1712 | } |
| 1713 | } |
| 1714 | } |
| 1715 | return; |
| 1716 | } |
| 1717 | |
| 1718 | switch (port_status & PORT_SPEED_MASK) { |
| 1719 | case PORT_SPEED_10: |
| 1720 | speed = 10; |
| 1721 | break; |
| 1722 | case PORT_SPEED_100: |
| 1723 | speed = 100; |
| 1724 | break; |
| 1725 | case PORT_SPEED_1000: |
| 1726 | speed = 1000; |
| 1727 | break; |
| 1728 | default: |
| 1729 | speed = -1; |
| 1730 | break; |
| 1731 | } |
| 1732 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1733 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1734 | |
| 1735 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " |
| 1736 | "flow control %sabled\n", dev->name, |
| 1737 | speed, duplex ? "full" : "half", |
| 1738 | fc ? "en" : "dis"); |
| 1739 | |
| 1740 | if (!netif_carrier_ok(dev)) { |
| 1741 | netif_carrier_on(dev); |
| 1742 | netif_wake_queue(dev); |
| 1743 | } |
| 1744 | } |
| 1745 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1746 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1747 | { |
| 1748 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1749 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1750 | u32 int_cause; |
| 1751 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1752 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1753 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & |
| 1754 | (INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1755 | if (int_cause == 0) |
| 1756 | return IRQ_NONE; |
| 1757 | |
| 1758 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1759 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1760 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1761 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1762 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1763 | } |
| 1764 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame^] | 1765 | if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) |
| 1766 | handle_link_event(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1767 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1768 | /* |
| 1769 | * RxBuffer or RxError set for any of the 8 queues? |
| 1770 | */ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1771 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1772 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1773 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1774 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1775 | |
| 1776 | netif_rx_schedule(dev, &mp->napi); |
| 1777 | } |
| 1778 | #else |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1779 | if (int_cause & INT_RX) { |
| 1780 | int i; |
| 1781 | |
| 1782 | for (i = 7; i >= 0; i--) |
| 1783 | if (mp->rxq_mask & (1 << i)) |
| 1784 | rxq_process(mp->rxq + i, INT_MAX); |
| 1785 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1786 | #endif |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1787 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1788 | /* |
| 1789 | * TxBuffer or TxError set for any of the 8 queues? |
| 1790 | */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1791 | if (int_cause_ext & INT_EXT_TX) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1792 | int i; |
| 1793 | |
| 1794 | for (i = 0; i < 8; i++) |
| 1795 | if (mp->txq_mask & (1 << i)) |
| 1796 | txq_reclaim(mp->txq + i, 0); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1797 | |
| 1798 | /* |
| 1799 | * Enough space again in the primary TX queue for a |
| 1800 | * full packet? |
| 1801 | */ |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1802 | if (netif_carrier_ok(dev)) { |
| 1803 | spin_lock(&mp->lock); |
| 1804 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
| 1805 | spin_unlock(&mp->lock); |
| 1806 | } |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1807 | } |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1808 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1809 | /* |
| 1810 | * Any TxEnd interrupts? |
| 1811 | */ |
| 1812 | if (int_cause & INT_TX_END) { |
| 1813 | int i; |
| 1814 | |
| 1815 | wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_TX_END)); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1816 | |
| 1817 | spin_lock(&mp->lock); |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1818 | for (i = 0; i < 8; i++) { |
| 1819 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1820 | u32 hw_desc_ptr; |
| 1821 | u32 expected_ptr; |
| 1822 | |
| 1823 | if ((int_cause & (INT_TX_END_0 << i)) == 0) |
| 1824 | continue; |
| 1825 | |
| 1826 | hw_desc_ptr = |
| 1827 | rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, i)); |
| 1828 | expected_ptr = (u32)txq->tx_desc_dma + |
| 1829 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1830 | |
| 1831 | if (hw_desc_ptr != expected_ptr) |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 1832 | txq_enable(txq); |
| 1833 | } |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 1834 | spin_unlock(&mp->lock); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1835 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1836 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1837 | return IRQ_HANDLED; |
| 1838 | } |
| 1839 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1840 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1841 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1842 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1843 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1844 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 1845 | data |= BMCR_RESET; |
| 1846 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1847 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1848 | do { |
| 1849 | udelay(1); |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 1850 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 1851 | } while (data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1852 | } |
| 1853 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1854 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1855 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1856 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1857 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1858 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1859 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1860 | * Perform PHY reset, if there is a PHY. |
| 1861 | */ |
| 1862 | if (mp->phy_addr != -1) { |
| 1863 | struct ethtool_cmd cmd; |
| 1864 | |
| 1865 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 1866 | phy_reset(mp); |
| 1867 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 1868 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1869 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1870 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1871 | * Configure basic link parameters. |
| 1872 | */ |
| 1873 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1874 | |
| 1875 | pscr |= SERIAL_PORT_ENABLE; |
| 1876 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1877 | |
| 1878 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
| 1879 | if (mp->phy_addr == -1) |
| 1880 | pscr |= FORCE_LINK_PASS; |
| 1881 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1882 | |
| 1883 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1884 | |
| 1885 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1886 | * Configure TX path and queues. |
| 1887 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1888 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1889 | for (i = 0; i < 8; i++) { |
| 1890 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1891 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1892 | if ((mp->txq_mask & (1 << i)) == 0) |
| 1893 | continue; |
| 1894 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1895 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1896 | txq_set_rate(txq, 1000000000, 16777216); |
| 1897 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1898 | } |
| 1899 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1900 | /* |
| 1901 | * Add configured unicast address to address filter table. |
| 1902 | */ |
| 1903 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1904 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1905 | /* |
| 1906 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1907 | * frames to RX queue #0. |
| 1908 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1909 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1910 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1911 | /* |
| 1912 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1913 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1914 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1915 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1916 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1917 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1918 | */ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1919 | for (i = 0; i < 8; i++) { |
| 1920 | struct rx_queue *rxq = mp->rxq + i; |
| 1921 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1922 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1923 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1924 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1925 | continue; |
| 1926 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1927 | addr = (u32)rxq->rx_desc_dma; |
| 1928 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1929 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1930 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1931 | rxq_enable(rxq); |
| 1932 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1933 | } |
| 1934 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1935 | 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] | 1936 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1937 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1938 | u32 val; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1939 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 1940 | val = rdl(mp, SDMA_CONFIG(mp->port_num)); |
| 1941 | if (mp->shared->extended_rx_coal_limit) { |
| 1942 | if (coal > 0xffff) |
| 1943 | coal = 0xffff; |
| 1944 | val &= ~0x023fff80; |
| 1945 | val |= (coal & 0x8000) << 10; |
| 1946 | val |= (coal & 0x7fff) << 7; |
| 1947 | } else { |
| 1948 | if (coal > 0x3fff) |
| 1949 | coal = 0x3fff; |
| 1950 | val &= ~0x003fff00; |
| 1951 | val |= (coal & 0x3fff) << 8; |
| 1952 | } |
| 1953 | wrl(mp, SDMA_CONFIG(mp->port_num), val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1954 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1955 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1956 | 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] | 1957 | { |
| 1958 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1959 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1960 | if (coal > 0x3fff) |
| 1961 | coal = 0x3fff; |
| 1962 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1963 | } |
| 1964 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1965 | static int mv643xx_eth_open(struct net_device *dev) |
| 1966 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1967 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1968 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1969 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1970 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1971 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 1972 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 1973 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1974 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1975 | err = request_irq(dev->irq, mv643xx_eth_irq, |
| 1976 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, |
| 1977 | dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1978 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1979 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1980 | return -EAGAIN; |
| 1981 | } |
| 1982 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1983 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1984 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1985 | for (i = 0; i < 8; i++) { |
| 1986 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1987 | continue; |
| 1988 | |
| 1989 | err = rxq_init(mp, i); |
| 1990 | if (err) { |
| 1991 | while (--i >= 0) |
| 1992 | if (mp->rxq_mask & (1 << i)) |
| 1993 | rxq_deinit(mp->rxq + i); |
| 1994 | goto out; |
| 1995 | } |
| 1996 | |
| 1997 | rxq_refill(mp->rxq + i); |
| 1998 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1999 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2000 | for (i = 0; i < 8; i++) { |
| 2001 | if ((mp->txq_mask & (1 << i)) == 0) |
| 2002 | continue; |
| 2003 | |
| 2004 | err = txq_init(mp, i); |
| 2005 | if (err) { |
| 2006 | while (--i >= 0) |
| 2007 | if (mp->txq_mask & (1 << i)) |
| 2008 | txq_deinit(mp->txq + i); |
| 2009 | goto out_free; |
| 2010 | } |
| 2011 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2012 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2013 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2014 | napi_enable(&mp->napi); |
| 2015 | #endif |
| 2016 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame^] | 2017 | netif_carrier_off(dev); |
| 2018 | netif_stop_queue(dev); |
| 2019 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2020 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2021 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 2022 | set_rx_coal(mp, 0); |
| 2023 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2024 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2025 | wrl(mp, INT_MASK_EXT(mp->port_num), |
| 2026 | INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2027 | |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 2028 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2029 | |
| 2030 | return 0; |
| 2031 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2032 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2033 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2034 | for (i = 0; i < 8; i++) |
| 2035 | if (mp->rxq_mask & (1 << i)) |
| 2036 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2037 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2038 | free_irq(dev->irq, dev); |
| 2039 | |
| 2040 | return err; |
| 2041 | } |
| 2042 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2043 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2044 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2045 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2046 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2047 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2048 | for (i = 0; i < 8; i++) { |
| 2049 | if (mp->rxq_mask & (1 << i)) |
| 2050 | rxq_disable(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2051 | if (mp->txq_mask & (1 << i)) |
| 2052 | txq_disable(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2053 | } |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2054 | |
| 2055 | while (1) { |
| 2056 | u32 ps = rdl(mp, PORT_STATUS(mp->port_num)); |
| 2057 | |
| 2058 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2059 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2060 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2061 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2062 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2063 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2064 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2065 | data &= ~(SERIAL_PORT_ENABLE | |
| 2066 | DO_NOT_FORCE_LINK_FAIL | |
| 2067 | FORCE_LINK_PASS); |
| 2068 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2069 | } |
| 2070 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2071 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2072 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2073 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2074 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2075 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2076 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2077 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2078 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2079 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2080 | napi_disable(&mp->napi); |
| 2081 | #endif |
| 2082 | netif_carrier_off(dev); |
| 2083 | netif_stop_queue(dev); |
| 2084 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2085 | free_irq(dev->irq, dev); |
| 2086 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2087 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2088 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2089 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2090 | for (i = 0; i < 8; i++) { |
| 2091 | if (mp->rxq_mask & (1 << i)) |
| 2092 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2093 | if (mp->txq_mask & (1 << i)) |
| 2094 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2095 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2096 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2097 | return 0; |
| 2098 | } |
| 2099 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2100 | 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] | 2101 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2102 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2103 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2104 | if (mp->phy_addr != -1) |
| 2105 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 2106 | |
| 2107 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2108 | } |
| 2109 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2110 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2111 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2112 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2113 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2114 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2115 | return -EINVAL; |
| 2116 | |
| 2117 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2118 | tx_set_rate(mp, 1000000000, 16777216); |
| 2119 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2120 | if (!netif_running(dev)) |
| 2121 | return 0; |
| 2122 | |
| 2123 | /* |
| 2124 | * Stop and then re-open the interface. This will allocate RX |
| 2125 | * skbs of the new MTU. |
| 2126 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2127 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2128 | */ |
| 2129 | mv643xx_eth_stop(dev); |
| 2130 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2131 | dev_printk(KERN_ERR, &dev->dev, |
| 2132 | "fatal error on re-opening device after " |
| 2133 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2134 | } |
| 2135 | |
| 2136 | return 0; |
| 2137 | } |
| 2138 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2139 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2140 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2141 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2142 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2143 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2144 | if (netif_running(mp->dev)) { |
| 2145 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2146 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2147 | port_reset(mp); |
| 2148 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2149 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2150 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2151 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2152 | } |
| 2153 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2154 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2155 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2156 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2157 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2158 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2159 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2160 | schedule_work(&mp->tx_timeout_task); |
| 2161 | } |
| 2162 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2163 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2164 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2165 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2166 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2167 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2168 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2169 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2170 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2171 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2172 | |
Lennert Buytenhek | f2ca60f | 2008-07-07 00:03:00 +0200 | [diff] [blame] | 2173 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2174 | } |
| 2175 | #endif |
| 2176 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2177 | static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2178 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2179 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2180 | int val; |
| 2181 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2182 | smi_reg_read(mp, addr, reg, &val); |
| 2183 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2184 | return val; |
| 2185 | } |
| 2186 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2187 | static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2188 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2189 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2190 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2191 | } |
| 2192 | |
| 2193 | |
| 2194 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2195 | static void |
| 2196 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2197 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2198 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2199 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2200 | u32 win_enable; |
| 2201 | u32 win_protect; |
| 2202 | int i; |
| 2203 | |
| 2204 | for (i = 0; i < 6; i++) { |
| 2205 | writel(0, base + WINDOW_BASE(i)); |
| 2206 | writel(0, base + WINDOW_SIZE(i)); |
| 2207 | if (i < 4) |
| 2208 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2209 | } |
| 2210 | |
| 2211 | win_enable = 0x3f; |
| 2212 | win_protect = 0; |
| 2213 | |
| 2214 | for (i = 0; i < dram->num_cs; i++) { |
| 2215 | struct mbus_dram_window *cs = dram->cs + i; |
| 2216 | |
| 2217 | writel((cs->base & 0xffff0000) | |
| 2218 | (cs->mbus_attr << 8) | |
| 2219 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2220 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2221 | |
| 2222 | win_enable &= ~(1 << i); |
| 2223 | win_protect |= 3 << (2 * i); |
| 2224 | } |
| 2225 | |
| 2226 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2227 | msp->win_protect = win_protect; |
| 2228 | } |
| 2229 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2230 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2231 | { |
| 2232 | /* |
| 2233 | * Check whether we have a 14-bit coal limit field in bits |
| 2234 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2235 | * SDMA config register. |
| 2236 | */ |
| 2237 | writel(0x02000000, msp->base + SDMA_CONFIG(0)); |
| 2238 | if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) |
| 2239 | msp->extended_rx_coal_limit = 1; |
| 2240 | else |
| 2241 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2242 | |
| 2243 | /* |
| 2244 | * Check whether the TX rate control registers are in the |
| 2245 | * old or the new place. |
| 2246 | */ |
| 2247 | writel(1, msp->base + TX_BW_MTU_MOVED(0)); |
| 2248 | if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) |
| 2249 | msp->tx_bw_control_moved = 1; |
| 2250 | else |
| 2251 | msp->tx_bw_control_moved = 0; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2252 | } |
| 2253 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2254 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2255 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2256 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2257 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2258 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2259 | struct resource *res; |
| 2260 | int ret; |
| 2261 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2262 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | 7dde154 | 2008-07-15 12:20:30 +0200 | [diff] [blame] | 2263 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
| 2264 | "driver version %s\n", mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2265 | |
| 2266 | ret = -EINVAL; |
| 2267 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2268 | if (res == NULL) |
| 2269 | goto out; |
| 2270 | |
| 2271 | ret = -ENOMEM; |
| 2272 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2273 | if (msp == NULL) |
| 2274 | goto out; |
| 2275 | memset(msp, 0, sizeof(*msp)); |
| 2276 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2277 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2278 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2279 | goto out_free; |
| 2280 | |
| 2281 | spin_lock_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2282 | |
| 2283 | /* |
| 2284 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2285 | */ |
| 2286 | if (pd != NULL && pd->dram != NULL) |
| 2287 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2288 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2289 | /* |
| 2290 | * Detect hardware parameters. |
| 2291 | */ |
| 2292 | 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] | 2293 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2294 | |
| 2295 | platform_set_drvdata(pdev, msp); |
| 2296 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2297 | return 0; |
| 2298 | |
| 2299 | out_free: |
| 2300 | kfree(msp); |
| 2301 | out: |
| 2302 | return ret; |
| 2303 | } |
| 2304 | |
| 2305 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2306 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2307 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2308 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2309 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2310 | kfree(msp); |
| 2311 | |
| 2312 | return 0; |
| 2313 | } |
| 2314 | |
| 2315 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2316 | .probe = mv643xx_eth_shared_probe, |
| 2317 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2318 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2319 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2320 | .owner = THIS_MODULE, |
| 2321 | }, |
| 2322 | }; |
| 2323 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2324 | 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] | 2325 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2326 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2327 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2328 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2329 | data = rdl(mp, PHY_ADDR); |
| 2330 | data &= ~(0x1f << addr_shift); |
| 2331 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2332 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2333 | } |
| 2334 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2335 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2336 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2337 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2338 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2339 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2340 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2341 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2342 | } |
| 2343 | |
| 2344 | static void set_params(struct mv643xx_eth_private *mp, |
| 2345 | struct mv643xx_eth_platform_data *pd) |
| 2346 | { |
| 2347 | struct net_device *dev = mp->dev; |
| 2348 | |
| 2349 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2350 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2351 | else |
| 2352 | uc_addr_get(mp, dev->dev_addr); |
| 2353 | |
| 2354 | if (pd->phy_addr == -1) { |
| 2355 | mp->shared_smi = NULL; |
| 2356 | mp->phy_addr = -1; |
| 2357 | } else { |
| 2358 | mp->shared_smi = mp->shared; |
| 2359 | if (pd->shared_smi != NULL) |
| 2360 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2361 | |
| 2362 | if (pd->force_phy_addr || pd->phy_addr) { |
| 2363 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2364 | phy_addr_set(mp, mp->phy_addr); |
| 2365 | } else { |
| 2366 | mp->phy_addr = phy_addr_get(mp); |
| 2367 | } |
| 2368 | } |
| 2369 | |
| 2370 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2371 | if (pd->rx_queue_size) |
| 2372 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2373 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2374 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2375 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2376 | if (pd->rx_queue_mask) |
| 2377 | mp->rxq_mask = pd->rx_queue_mask; |
| 2378 | else |
| 2379 | mp->rxq_mask = 0x01; |
| 2380 | mp->rxq_primary = fls(mp->rxq_mask) - 1; |
| 2381 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2382 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2383 | if (pd->tx_queue_size) |
| 2384 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2385 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2386 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2387 | |
| 2388 | if (pd->tx_queue_mask) |
| 2389 | mp->txq_mask = pd->tx_queue_mask; |
| 2390 | else |
| 2391 | mp->txq_mask = 0x01; |
| 2392 | mp->txq_primary = fls(mp->txq_mask) - 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2393 | } |
| 2394 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2395 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2396 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2397 | unsigned int data; |
| 2398 | unsigned int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2399 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2400 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data); |
| 2401 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data ^ BMCR_ANENABLE); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2402 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2403 | smi_reg_read(mp, mp->phy_addr, MII_BMCR, &data2); |
| 2404 | if (((data ^ data2) & BMCR_ANENABLE) == 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2405 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2406 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2407 | smi_reg_write(mp, mp->phy_addr, MII_BMCR, data); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2408 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2409 | return 0; |
| 2410 | } |
| 2411 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2412 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2413 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2414 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2415 | struct ethtool_cmd cmd; |
| 2416 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2417 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2418 | err = phy_detect(mp); |
| 2419 | if (err) { |
| 2420 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2421 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2422 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2423 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2424 | phy_reset(mp); |
| 2425 | |
| 2426 | mp->mii.phy_id = mp->phy_addr; |
| 2427 | mp->mii.phy_id_mask = 0x3f; |
| 2428 | mp->mii.reg_num_mask = 0x1f; |
| 2429 | mp->mii.dev = mp->dev; |
| 2430 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2431 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2432 | |
| 2433 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2434 | |
| 2435 | memset(&cmd, 0, sizeof(cmd)); |
| 2436 | |
| 2437 | cmd.port = PORT_MII; |
| 2438 | cmd.transceiver = XCVR_INTERNAL; |
| 2439 | cmd.phy_address = mp->phy_addr; |
| 2440 | if (pd->speed == 0) { |
| 2441 | cmd.autoneg = AUTONEG_ENABLE; |
| 2442 | cmd.speed = SPEED_100; |
| 2443 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2444 | ADVERTISED_10baseT_Full | |
| 2445 | ADVERTISED_100baseT_Half | |
| 2446 | ADVERTISED_100baseT_Full; |
| 2447 | if (mp->mii.supports_gmii) |
| 2448 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2449 | } else { |
| 2450 | cmd.autoneg = AUTONEG_DISABLE; |
| 2451 | cmd.speed = pd->speed; |
| 2452 | cmd.duplex = pd->duplex; |
| 2453 | } |
| 2454 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2455 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2456 | |
| 2457 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2458 | } |
| 2459 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2460 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2461 | { |
| 2462 | u32 pscr; |
| 2463 | |
| 2464 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 2465 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2466 | pscr &= ~SERIAL_PORT_ENABLE; |
| 2467 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2468 | } |
| 2469 | |
| 2470 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
| 2471 | if (mp->phy_addr == -1) { |
| 2472 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2473 | if (speed == SPEED_1000) |
| 2474 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2475 | else if (speed == SPEED_100) |
| 2476 | pscr |= SET_MII_SPEED_TO_100; |
| 2477 | |
| 2478 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2479 | |
| 2480 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2481 | if (duplex == DUPLEX_FULL) |
| 2482 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2483 | } |
| 2484 | |
| 2485 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 2486 | } |
| 2487 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2488 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2489 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2490 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2491 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2492 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2493 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2494 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2495 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2496 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2497 | pd = pdev->dev.platform_data; |
| 2498 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2499 | dev_printk(KERN_ERR, &pdev->dev, |
| 2500 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2501 | return -ENODEV; |
| 2502 | } |
| 2503 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2504 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2505 | dev_printk(KERN_ERR, &pdev->dev, |
| 2506 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2507 | return -ENODEV; |
| 2508 | } |
| 2509 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2510 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2511 | if (!dev) |
| 2512 | return -ENOMEM; |
| 2513 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2514 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2515 | platform_set_drvdata(pdev, mp); |
| 2516 | |
| 2517 | mp->shared = platform_get_drvdata(pd->shared); |
| 2518 | mp->port_num = pd->port_number; |
| 2519 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2520 | mp->dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2521 | #ifdef MV643XX_ETH_NAPI |
| 2522 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2523 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2524 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2525 | set_params(mp, pd); |
| 2526 | |
| 2527 | spin_lock_init(&mp->lock); |
| 2528 | |
| 2529 | mib_counters_clear(mp); |
| 2530 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2531 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2532 | if (mp->phy_addr != -1) { |
| 2533 | err = phy_init(mp, pd); |
| 2534 | if (err) |
| 2535 | goto out; |
| 2536 | |
| 2537 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2538 | } else { |
| 2539 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); |
| 2540 | } |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2541 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2542 | |
| 2543 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2544 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2545 | BUG_ON(!res); |
| 2546 | dev->irq = res->start; |
| 2547 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2548 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2549 | dev->open = mv643xx_eth_open; |
| 2550 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2551 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2552 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2553 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2554 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2555 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2556 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2557 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2558 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2559 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2561 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2562 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | /* |
| 2564 | * Zero copy can only work if we use Discovery II memory. Else, we will |
| 2565 | * have to map the buffers to ISA memory which is only 16 MB |
| 2566 | */ |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2567 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2568 | #endif |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2569 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2570 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2571 | |
| 2572 | if (mp->shared->win_protect) |
| 2573 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2574 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | err = register_netdev(dev); |
| 2576 | if (err) |
| 2577 | goto out; |
| 2578 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2579 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2580 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2581 | |
| 2582 | if (dev->features & NETIF_F_SG) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2583 | dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2584 | |
| 2585 | if (dev->features & NETIF_F_IP_CSUM) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2586 | dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2587 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2588 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2589 | dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2590 | #endif |
| 2591 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2592 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2593 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2594 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2595 | return 0; |
| 2596 | |
| 2597 | out: |
| 2598 | free_netdev(dev); |
| 2599 | |
| 2600 | return err; |
| 2601 | } |
| 2602 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2603 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2605 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2606 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2607 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2608 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2609 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2610 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2611 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2613 | return 0; |
| 2614 | } |
| 2615 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2616 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2617 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2618 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2619 | |
| 2620 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2621 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2622 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2623 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2624 | if (netif_running(mp->dev)) |
| 2625 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2626 | } |
| 2627 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2628 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2629 | .probe = mv643xx_eth_probe, |
| 2630 | .remove = mv643xx_eth_remove, |
| 2631 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2632 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2633 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2634 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2635 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2636 | }; |
| 2637 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2638 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2639 | { |
| 2640 | int rc; |
| 2641 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2642 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2643 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2644 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2645 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2646 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2647 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2648 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2649 | return rc; |
| 2650 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2651 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2652 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2653 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2654 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2655 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2656 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2657 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2658 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2659 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 2660 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 2661 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2662 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2663 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2664 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2665 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |