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"; |
| 58 | static char mv643xx_eth_driver_version[] = "1.0"; |
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 |
| 63 | #undef MV643XX_ETH_COAL |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 64 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 65 | #define MV643XX_ETH_TX_COAL 100 |
| 66 | #ifdef MV643XX_ETH_COAL |
| 67 | #define MV643XX_ETH_RX_COAL 100 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 68 | #endif |
| 69 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 70 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 71 | #define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1) |
| 72 | #else |
| 73 | #define MAX_DESCS_PER_SKB 1 |
| 74 | #endif |
| 75 | |
| 76 | #define ETH_VLAN_HLEN 4 |
| 77 | #define ETH_FCS_LEN 4 |
| 78 | #define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */ |
| 79 | #define ETH_WRAPPER_LEN (ETH_HW_IP_ALIGN + ETH_HLEN + \ |
| 80 | ETH_VLAN_HLEN + ETH_FCS_LEN) |
| 81 | #define ETH_RX_SKB_SIZE (dev->mtu + ETH_WRAPPER_LEN + \ |
| 82 | dma_get_cache_alignment()) |
| 83 | |
| 84 | /* |
| 85 | * Registers shared between all ports. |
| 86 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 87 | #define PHY_ADDR 0x0000 |
| 88 | #define SMI_REG 0x0004 |
| 89 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 90 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 91 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 92 | #define WINDOW_BAR_ENABLE 0x0290 |
| 93 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 94 | |
| 95 | /* |
| 96 | * Per-port registers. |
| 97 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 98 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 99 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 100 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
| 101 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) |
| 102 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) |
| 103 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) |
| 104 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) |
| 105 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 106 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 107 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
| 108 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
| 109 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 110 | #define INT_RX 0x00000804 |
| 111 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 112 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 113 | #define INT_EXT_LINK 0x00100000 |
| 114 | #define INT_EXT_PHY 0x00010000 |
| 115 | #define INT_EXT_TX_ERROR_0 0x00000100 |
| 116 | #define INT_EXT_TX_0 0x00000001 |
| 117 | #define INT_EXT_TX 0x00000101 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 118 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 119 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 120 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
| 121 | #define RXQ_CURRENT_DESC_PTR(p) (0x060c + ((p) << 10)) |
| 122 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
| 123 | #define TXQ_CURRENT_DESC_PTR(p) (0x06c0 + ((p) << 10)) |
| 124 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 125 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 126 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 127 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 128 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 129 | |
| 130 | /* |
| 131 | * SDMA configuration register. |
| 132 | */ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 133 | #define RX_BURST_SIZE_4_64BIT (2 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 134 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 135 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 136 | #define TX_BURST_SIZE_4_64BIT (2 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 137 | |
| 138 | #if defined(__BIG_ENDIAN) |
| 139 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
| 140 | RX_BURST_SIZE_4_64BIT | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 141 | TX_BURST_SIZE_4_64BIT |
| 142 | #elif defined(__LITTLE_ENDIAN) |
| 143 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
| 144 | RX_BURST_SIZE_4_64BIT | \ |
| 145 | BLM_RX_NO_SWAP | \ |
| 146 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 147 | TX_BURST_SIZE_4_64BIT |
| 148 | #else |
| 149 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 150 | #endif |
| 151 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 152 | |
| 153 | /* |
| 154 | * Port serial control register. |
| 155 | */ |
| 156 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 157 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 158 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 159 | #define MAX_RX_PACKET_1522BYTE (1 << 17) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 160 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
| 161 | #define MAX_RX_PACKET_MASK (7 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 162 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 163 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 164 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 165 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 166 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 167 | #define FORCE_LINK_PASS (1 << 1) |
| 168 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 169 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 170 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 171 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 172 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 173 | /* SMI reg */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 174 | #define SMI_BUSY 0x10000000 /* 0 - Write, 1 - Read */ |
| 175 | #define SMI_READ_VALID 0x08000000 /* 0 - Write, 1 - Read */ |
| 176 | #define SMI_OPCODE_WRITE 0 /* Completion of Read */ |
| 177 | #define SMI_OPCODE_READ 0x04000000 /* Operation is in progress */ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 178 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 179 | /* typedefs */ |
| 180 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 181 | typedef enum _func_ret_status { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 182 | ETH_OK, /* Returned as expected. */ |
| 183 | ETH_ERROR, /* Fundamental error. */ |
| 184 | ETH_RETRY, /* Could not process request. Try later.*/ |
| 185 | ETH_END_OF_JOB, /* Ring has nothing to process. */ |
| 186 | ETH_QUEUE_FULL, /* Ring resource error. */ |
| 187 | ETH_QUEUE_LAST_RESOURCE /* Ring resources about to exhaust. */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 188 | } FUNC_RET_STATUS; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 189 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 190 | /* |
| 191 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 192 | */ |
| 193 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 194 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 195 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 196 | u16 buf_size; /* Buffer size */ |
| 197 | u32 cmd_sts; /* Descriptor command status */ |
| 198 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 199 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 200 | }; |
| 201 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 202 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 203 | u16 byte_cnt; /* buffer byte count */ |
| 204 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 205 | u32 cmd_sts; /* Command/status field */ |
| 206 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 207 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 208 | }; |
| 209 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 210 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 211 | u32 cmd_sts; /* Descriptor command status */ |
| 212 | u16 buf_size; /* Buffer size */ |
| 213 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 214 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 215 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 216 | }; |
| 217 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 218 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 219 | u32 cmd_sts; /* Command/status field */ |
| 220 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 221 | u16 byte_cnt; /* buffer byte count */ |
| 222 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 223 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 224 | }; |
| 225 | #else |
| 226 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 227 | #endif |
| 228 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 229 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 230 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 231 | |
| 232 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 233 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 234 | |
| 235 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 236 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 237 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 238 | #define RX_FIRST_DESC 0x08000000 |
| 239 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 240 | |
| 241 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 242 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 243 | #define GEN_CRC 0x00400000 |
| 244 | #define TX_FIRST_DESC 0x00200000 |
| 245 | #define TX_LAST_DESC 0x00100000 |
| 246 | #define ZERO_PADDING 0x00080000 |
| 247 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 248 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 249 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 250 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 251 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 252 | |
| 253 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 254 | /* Unified struct for Rx and Tx operations. The user is not required to */ |
| 255 | /* be familier with neither Tx nor Rx descriptors. */ |
| 256 | struct pkt_info { |
| 257 | unsigned short byte_cnt; /* Descriptor buffer byte count */ |
| 258 | unsigned short l4i_chk; /* Tx CPU provided TCP Checksum */ |
| 259 | unsigned int cmd_sts; /* Descriptor command status */ |
| 260 | dma_addr_t buf_ptr; /* Descriptor buffer pointer */ |
| 261 | struct sk_buff *return_info; /* User resource return information */ |
| 262 | }; |
| 263 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 264 | |
| 265 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 266 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 267 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 268 | |
| 269 | /* used to protect SMI_REG, which is shared across ports */ |
| 270 | spinlock_t phy_lock; |
| 271 | |
| 272 | u32 win_protect; |
| 273 | |
| 274 | unsigned int t_clk; |
| 275 | }; |
| 276 | |
| 277 | |
| 278 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 279 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 280 | u64 good_octets_received; |
| 281 | u32 bad_octets_received; |
| 282 | u32 internal_mac_transmit_err; |
| 283 | u32 good_frames_received; |
| 284 | u32 bad_frames_received; |
| 285 | u32 broadcast_frames_received; |
| 286 | u32 multicast_frames_received; |
| 287 | u32 frames_64_octets; |
| 288 | u32 frames_65_to_127_octets; |
| 289 | u32 frames_128_to_255_octets; |
| 290 | u32 frames_256_to_511_octets; |
| 291 | u32 frames_512_to_1023_octets; |
| 292 | u32 frames_1024_to_max_octets; |
| 293 | u64 good_octets_sent; |
| 294 | u32 good_frames_sent; |
| 295 | u32 excessive_collision; |
| 296 | u32 multicast_frames_sent; |
| 297 | u32 broadcast_frames_sent; |
| 298 | u32 unrec_mac_control_received; |
| 299 | u32 fc_sent; |
| 300 | u32 good_fc_received; |
| 301 | u32 bad_fc_received; |
| 302 | u32 undersize_received; |
| 303 | u32 fragments_received; |
| 304 | u32 oversize_received; |
| 305 | u32 jabber_received; |
| 306 | u32 mac_receive_error; |
| 307 | u32 bad_crc_event; |
| 308 | u32 collision; |
| 309 | u32 late_collision; |
| 310 | }; |
| 311 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 312 | struct mv643xx_eth_private { |
| 313 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 314 | int port_num; /* User Ethernet port number */ |
| 315 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 316 | struct mv643xx_eth_shared_private *shared_smi; |
Lennert Buytenhek | ce4e2e4 | 2008-04-24 01:29:59 +0200 | [diff] [blame] | 317 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 318 | u32 rx_sram_addr; /* Base address of rx sram area */ |
| 319 | u32 rx_sram_size; /* Size of rx sram area */ |
| 320 | u32 tx_sram_addr; /* Base address of tx sram area */ |
| 321 | u32 tx_sram_size; /* Size of tx sram area */ |
| 322 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 323 | /* Tx/Rx rings managment indexes fields. For driver use */ |
| 324 | |
| 325 | /* Next available and first returning Rx resource */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 326 | int rx_curr_desc, rx_used_desc; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 327 | |
| 328 | /* Next available and first returning Tx resource */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 329 | int tx_curr_desc, tx_used_desc; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 330 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 331 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 332 | u32 tx_clean_threshold; |
| 333 | #endif |
| 334 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 335 | struct rx_desc *rx_desc_area; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 336 | dma_addr_t rx_desc_dma; |
| 337 | int rx_desc_area_size; |
| 338 | struct sk_buff **rx_skb; |
| 339 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 340 | struct tx_desc *tx_desc_area; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 341 | dma_addr_t tx_desc_dma; |
| 342 | int tx_desc_area_size; |
| 343 | struct sk_buff **tx_skb; |
| 344 | |
| 345 | struct work_struct tx_timeout_task; |
| 346 | |
| 347 | struct net_device *dev; |
| 348 | struct napi_struct napi; |
| 349 | struct net_device_stats stats; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 350 | struct mib_counters mib_counters; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 351 | spinlock_t lock; |
| 352 | /* Size of Tx Ring per queue */ |
| 353 | int tx_ring_size; |
| 354 | /* Number of tx descriptors in use */ |
| 355 | int tx_desc_count; |
| 356 | /* Size of Rx Ring per queue */ |
| 357 | int rx_ring_size; |
| 358 | /* Number of rx descriptors in use */ |
| 359 | int rx_desc_count; |
| 360 | |
| 361 | /* |
| 362 | * Used in case RX Ring is empty, which can be caused when |
| 363 | * system does not have resources (skb's) |
| 364 | */ |
| 365 | struct timer_list timeout; |
| 366 | |
| 367 | u32 rx_int_coal; |
| 368 | u32 tx_int_coal; |
| 369 | struct mii_if_info mii; |
| 370 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 372 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 373 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 374 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 376 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | } |
| 378 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 379 | 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] | 380 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 381 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | } |
| 383 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 384 | |
| 385 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 386 | static void mv643xx_eth_port_enable_rx(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 387 | unsigned int queues) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 389 | wrl(mp, RXQ_COMMAND(mp->port_num), queues); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 390 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 392 | static unsigned int mv643xx_eth_port_disable_rx(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 393 | { |
| 394 | unsigned int port_num = mp->port_num; |
| 395 | u32 queues; |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 396 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 397 | /* Stop Rx port activity. Check port Rx activity. */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 398 | queues = rdl(mp, RXQ_COMMAND(port_num)) & 0xFF; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 399 | if (queues) { |
| 400 | /* Issue stop command for active queues only */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 401 | wrl(mp, RXQ_COMMAND(port_num), (queues << 8)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 402 | |
| 403 | /* Wait for all Rx activity to terminate. */ |
| 404 | /* Check port cause register that all Rx queues are stopped */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 405 | while (rdl(mp, RXQ_COMMAND(port_num)) & 0xFF) |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 406 | udelay(10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | } |
| 408 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 409 | return queues; |
| 410 | } |
| 411 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 412 | static void mv643xx_eth_port_enable_tx(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 413 | unsigned int queues) |
| 414 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 415 | wrl(mp, TXQ_COMMAND(mp->port_num), queues); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 416 | } |
| 417 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 418 | static unsigned int mv643xx_eth_port_disable_tx(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 419 | { |
| 420 | unsigned int port_num = mp->port_num; |
| 421 | u32 queues; |
| 422 | |
| 423 | /* Stop Tx port activity. Check port Tx activity. */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 424 | queues = rdl(mp, TXQ_COMMAND(port_num)) & 0xFF; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 425 | if (queues) { |
| 426 | /* Issue stop command for active queues only */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 427 | wrl(mp, TXQ_COMMAND(port_num), (queues << 8)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 428 | |
| 429 | /* Wait for all Tx activity to terminate. */ |
| 430 | /* Check port cause register that all Tx queues are stopped */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 431 | while (rdl(mp, TXQ_COMMAND(port_num)) & 0xFF) |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 432 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 433 | |
| 434 | /* Wait for Tx FIFO to empty */ |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 435 | while (rdl(mp, PORT_STATUS(port_num)) & TX_FIFO_EMPTY) |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 436 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | return queues; |
| 440 | } |
| 441 | |
| 442 | |
| 443 | /* rx ***********************************************************************/ |
| 444 | static void mv643xx_eth_free_completed_tx_descs(struct net_device *dev); |
| 445 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 446 | static FUNC_RET_STATUS rx_return_buff(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 447 | struct pkt_info *pkt_info) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 448 | { |
| 449 | int used_rx_desc; /* Where to return Rx resource */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 450 | volatile struct rx_desc *rx_desc; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 451 | unsigned long flags; |
| 452 | |
| 453 | spin_lock_irqsave(&mp->lock, flags); |
| 454 | |
| 455 | /* Get 'used' Rx descriptor */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 456 | used_rx_desc = mp->rx_used_desc; |
| 457 | rx_desc = &mp->rx_desc_area[used_rx_desc]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 458 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 459 | rx_desc->buf_ptr = pkt_info->buf_ptr; |
| 460 | rx_desc->buf_size = pkt_info->byte_cnt; |
| 461 | mp->rx_skb[used_rx_desc] = pkt_info->return_info; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 462 | |
| 463 | /* Flush the write pipe */ |
| 464 | |
| 465 | /* Return the descriptor to DMA ownership */ |
| 466 | wmb(); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 467 | rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 468 | wmb(); |
| 469 | |
| 470 | /* Move the used descriptor pointer to the next descriptor */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 471 | mp->rx_used_desc = (used_rx_desc + 1) % mp->rx_ring_size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 472 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 473 | spin_unlock_irqrestore(&mp->lock, flags); |
| 474 | |
| 475 | return ETH_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | } |
| 477 | |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 478 | static void mv643xx_eth_rx_refill_descs(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 480 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | struct pkt_info pkt_info; |
| 482 | struct sk_buff *skb; |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 483 | int unaligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 485 | while (mp->rx_desc_count < mp->rx_ring_size) { |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 486 | skb = dev_alloc_skb(ETH_RX_SKB_SIZE + dma_get_cache_alignment()); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | if (!skb) |
| 488 | break; |
Dale Farnsworth | f98e36f1 | 2006-01-27 01:09:18 -0700 | [diff] [blame] | 489 | mp->rx_desc_count++; |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 490 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 491 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 492 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 493 | pkt_info.cmd_sts = RX_ENABLE_INTERRUPT; |
Dale Farnsworth | 7303fde | 2006-03-03 10:03:36 -0700 | [diff] [blame] | 494 | pkt_info.byte_cnt = ETH_RX_SKB_SIZE; |
| 495 | pkt_info.buf_ptr = dma_map_single(NULL, skb->data, |
| 496 | ETH_RX_SKB_SIZE, DMA_FROM_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | pkt_info.return_info = skb; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 498 | if (rx_return_buff(mp, &pkt_info) != ETH_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | printk(KERN_ERR |
| 500 | "%s: Error allocating RX Ring\n", dev->name); |
| 501 | break; |
| 502 | } |
Dale Farnsworth | 7303fde | 2006-03-03 10:03:36 -0700 | [diff] [blame] | 503 | skb_reserve(skb, ETH_HW_IP_ALIGN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | /* |
| 506 | * If RX ring is empty of SKB, set a timer to try allocating |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 507 | * again at a later time. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | */ |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 509 | if (mp->rx_desc_count == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | printk(KERN_INFO "%s: Rx ring is empty\n", dev->name); |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 511 | mp->timeout.expires = jiffies + (HZ / 10); /* 100 mSec */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | add_timer(&mp->timeout); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | } |
| 515 | |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 516 | static inline void mv643xx_eth_rx_refill_descs_timer_wrapper(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | { |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 518 | mv643xx_eth_rx_refill_descs((struct net_device *)data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | } |
| 520 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 521 | static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 522 | struct pkt_info *pkt_info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 524 | int rx_next_curr_desc, rx_curr_desc, rx_used_desc; |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 525 | volatile struct rx_desc *rx_desc; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 526 | unsigned int command_status; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 527 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 529 | spin_lock_irqsave(&mp->lock, flags); |
Dale Farnsworth | d344bff | 2007-01-23 09:52:25 -0700 | [diff] [blame] | 530 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 531 | /* Get the Rx Desc ring 'curr and 'used' indexes */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 532 | rx_curr_desc = mp->rx_curr_desc; |
| 533 | rx_used_desc = mp->rx_used_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 535 | rx_desc = &mp->rx_desc_area[rx_curr_desc]; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 536 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 537 | /* The following parameters are used to save readings from memory */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 538 | command_status = rx_desc->cmd_sts; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 539 | rmb(); |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 540 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 541 | /* Nothing to receive... */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 542 | if (command_status & BUFFER_OWNED_BY_DMA) { |
Dale Farnsworth | d344bff | 2007-01-23 09:52:25 -0700 | [diff] [blame] | 543 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 544 | return ETH_END_OF_JOB; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | } |
| 546 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 547 | pkt_info->byte_cnt = rx_desc->byte_cnt - ETH_HW_IP_ALIGN; |
| 548 | pkt_info->cmd_sts = command_status; |
| 549 | pkt_info->buf_ptr = rx_desc->buf_ptr + ETH_HW_IP_ALIGN; |
| 550 | pkt_info->return_info = mp->rx_skb[rx_curr_desc]; |
| 551 | pkt_info->l4i_chk = rx_desc->buf_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 553 | /* |
| 554 | * Clean the return info field to indicate that the |
| 555 | * packet has been moved to the upper layers |
| 556 | */ |
| 557 | mp->rx_skb[rx_curr_desc] = NULL; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 558 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 559 | /* Update current index in data structure */ |
| 560 | rx_next_curr_desc = (rx_curr_desc + 1) % mp->rx_ring_size; |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 561 | mp->rx_curr_desc = rx_next_curr_desc; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 562 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 563 | spin_unlock_irqrestore(&mp->lock, flags); |
| 564 | |
| 565 | return ETH_OK; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 566 | } |
| 567 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | static int mv643xx_eth_receive_queue(struct net_device *dev, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 570 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 571 | struct net_device_stats *stats = &dev->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | unsigned int received_packets = 0; |
| 573 | struct sk_buff *skb; |
| 574 | struct pkt_info pkt_info; |
| 575 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 576 | while (budget-- > 0 && port_receive(mp, &pkt_info) == ETH_OK) { |
Jeff Garzik | 54caf44 | 2006-09-21 00:08:10 -0400 | [diff] [blame] | 577 | dma_unmap_single(NULL, pkt_info.buf_ptr, ETH_RX_SKB_SIZE, |
Dale Farnsworth | 71d2872 | 2006-09-13 09:21:08 -0700 | [diff] [blame] | 578 | DMA_FROM_DEVICE); |
Dale Farnsworth | f98e36f1 | 2006-01-27 01:09:18 -0700 | [diff] [blame] | 579 | mp->rx_desc_count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | received_packets++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 581 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 582 | /* |
| 583 | * Update statistics. |
| 584 | * Note byte count includes 4 byte CRC count |
| 585 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | stats->rx_packets++; |
| 587 | stats->rx_bytes += pkt_info.byte_cnt; |
| 588 | skb = pkt_info.return_info; |
| 589 | /* |
| 590 | * In case received a packet without first / last bits on OR |
| 591 | * the error summary bit is on, the packets needs to be dropeed. |
| 592 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 593 | if (((pkt_info.cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
| 594 | (RX_FIRST_DESC | RX_LAST_DESC)) |
| 595 | || (pkt_info.cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | stats->rx_dropped++; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 597 | if ((pkt_info.cmd_sts & (RX_FIRST_DESC | |
| 598 | RX_LAST_DESC)) != |
| 599 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | if (net_ratelimit()) |
| 601 | printk(KERN_ERR |
| 602 | "%s: Received packet spread " |
| 603 | "on multiple descriptors\n", |
| 604 | dev->name); |
| 605 | } |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 606 | if (pkt_info.cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | stats->rx_errors++; |
| 608 | |
| 609 | dev_kfree_skb_irq(skb); |
| 610 | } else { |
| 611 | /* |
| 612 | * The -4 is for the CRC in the trailer of the |
| 613 | * received packet |
| 614 | */ |
| 615 | skb_put(skb, pkt_info.byte_cnt - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 617 | if (pkt_info.cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 619 | skb->csum = htons( |
| 620 | (pkt_info.cmd_sts & 0x0007fff8) >> 3); |
| 621 | } |
| 622 | skb->protocol = eth_type_trans(skb, dev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 623 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | netif_receive_skb(skb); |
| 625 | #else |
| 626 | netif_rx(skb); |
| 627 | #endif |
| 628 | } |
Paolo Galtieri | 12ad74f | 2006-01-27 01:03:38 -0700 | [diff] [blame] | 629 | dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | } |
Dale Farnsworth | f78fb47 | 2006-03-03 10:05:26 -0700 | [diff] [blame] | 631 | mv643xx_eth_rx_refill_descs(dev); /* Fill RX ring with skb's */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
| 633 | return received_packets; |
| 634 | } |
| 635 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 636 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 637 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 639 | struct mv643xx_eth_private *mp = container_of(napi, struct mv643xx_eth_private, napi); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 640 | struct net_device *dev = mp->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | unsigned int port_num = mp->port_num; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 642 | int work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 644 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | if (++mp->tx_clean_threshold > 5) { |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 646 | mv643xx_eth_free_completed_tx_descs(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | mp->tx_clean_threshold = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | } |
| 649 | #endif |
| 650 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 651 | work_done = 0; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 652 | if ((rdl(mp, RXQ_CURRENT_DESC_PTR(port_num))) |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 653 | != (u32) mp->rx_used_desc) |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 654 | work_done = mv643xx_eth_receive_queue(dev, budget); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 656 | if (work_done < budget) { |
| 657 | netif_rx_complete(dev, napi); |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 658 | wrl(mp, INT_CAUSE(port_num), 0); |
| 659 | wrl(mp, INT_CAUSE_EXT(port_num), 0); |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 660 | wrl(mp, INT_MASK(port_num), INT_RX | INT_EXT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | } |
| 662 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 663 | return work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | } |
| 665 | #endif |
| 666 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 667 | |
| 668 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 669 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 670 | { |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 671 | unsigned int frag; |
| 672 | skb_frag_t *fragp; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 673 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 674 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
| 675 | fragp = &skb_shinfo(skb)->frags[frag]; |
| 676 | if (fragp->size <= 8 && fragp->page_offset & 0x7) |
| 677 | return 1; |
| 678 | } |
| 679 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 680 | } |
| 681 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 682 | static int alloc_tx_desc_index(struct mv643xx_eth_private *mp) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 683 | { |
| 684 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 685 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 686 | BUG_ON(mp->tx_desc_count >= mp->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 687 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 688 | tx_desc_curr = mp->tx_curr_desc; |
| 689 | mp->tx_curr_desc = (tx_desc_curr + 1) % mp->tx_ring_size; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 690 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 691 | BUG_ON(mp->tx_curr_desc == mp->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 692 | |
| 693 | return tx_desc_curr; |
| 694 | } |
| 695 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 696 | static void tx_fill_frag_descs(struct mv643xx_eth_private *mp, |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 697 | struct sk_buff *skb) |
| 698 | { |
| 699 | int frag; |
| 700 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 701 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 702 | |
| 703 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
| 704 | skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; |
| 705 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 706 | tx_index = alloc_tx_desc_index(mp); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 707 | desc = &mp->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 708 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 709 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 710 | /* Last Frag enables interrupt and frees the skb */ |
| 711 | if (frag == (skb_shinfo(skb)->nr_frags - 1)) { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 712 | desc->cmd_sts |= ZERO_PADDING | |
| 713 | TX_LAST_DESC | |
| 714 | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 715 | mp->tx_skb[tx_index] = skb; |
| 716 | } else |
Al Viro | 0598077 | 2006-05-30 23:59:09 -0400 | [diff] [blame] | 717 | mp->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 718 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 719 | desc = &mp->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 720 | desc->l4i_chk = 0; |
| 721 | desc->byte_cnt = this_frag->size; |
| 722 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 723 | this_frag->page_offset, |
| 724 | this_frag->size, |
| 725 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 726 | } |
| 727 | } |
| 728 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 729 | static inline __be16 sum16_as_be(__sum16 sum) |
| 730 | { |
| 731 | return (__force __be16)sum; |
| 732 | } |
| 733 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 734 | static void tx_submit_descs_for_skb(struct mv643xx_eth_private *mp, |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 735 | struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 736 | { |
| 737 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 738 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 739 | u32 cmd_sts; |
| 740 | int length; |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 741 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 742 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 743 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 744 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 745 | tx_index = alloc_tx_desc_index(mp); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 746 | desc = &mp->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 747 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 748 | if (nr_frags) { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 749 | tx_fill_frag_descs(mp, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 750 | |
| 751 | length = skb_headlen(skb); |
Al Viro | 0598077 | 2006-05-30 23:59:09 -0400 | [diff] [blame] | 752 | mp->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 753 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 754 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 755 | length = skb->len; |
| 756 | mp->tx_skb[tx_index] = skb; |
| 757 | } |
| 758 | |
| 759 | desc->byte_cnt = length; |
| 760 | 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] | 761 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 762 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 763 | BUG_ON(skb->protocol != htons(ETH_P_IP)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 764 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 765 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 766 | GEN_IP_V4_CHECKSUM | |
| 767 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 768 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 769 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 770 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 771 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 772 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 773 | break; |
| 774 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 775 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 776 | break; |
| 777 | default: |
| 778 | BUG(); |
| 779 | } |
| 780 | } else { |
| 781 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 782 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 783 | desc->l4i_chk = 0; |
| 784 | } |
| 785 | |
| 786 | /* ensure all other descriptors are written before first cmd_sts */ |
| 787 | wmb(); |
| 788 | desc->cmd_sts = cmd_sts; |
| 789 | |
| 790 | /* ensure all descriptors are written before poking hardware */ |
| 791 | wmb(); |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 792 | mv643xx_eth_port_enable_tx(mp, 1); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 793 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 794 | mp->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 795 | } |
| 796 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 798 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 799 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 800 | struct net_device_stats *stats = &dev->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 803 | BUG_ON(netif_queue_stopped(dev)); |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -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++; |
| 807 | printk(KERN_DEBUG "%s: failed to linearize tiny " |
| 808 | "unaligned fragment\n", dev->name); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 809 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 810 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | spin_lock_irqsave(&mp->lock, flags); |
| 813 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 814 | if (mp->tx_ring_size - mp->tx_desc_count < MAX_DESCS_PER_SKB) { |
| 815 | printk(KERN_ERR "%s: transmit with queue full\n", dev->name); |
| 816 | netif_stop_queue(dev); |
| 817 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 818 | return NETDEV_TX_BUSY; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 819 | } |
| 820 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 821 | tx_submit_descs_for_skb(mp, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 822 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | stats->tx_packets++; |
| 824 | dev->trans_start = jiffies; |
| 825 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 826 | if (mp->tx_ring_size - mp->tx_desc_count < MAX_DESCS_PER_SKB) |
| 827 | netif_stop_queue(dev); |
| 828 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | spin_unlock_irqrestore(&mp->lock, flags); |
| 830 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 831 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | } |
| 833 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 834 | |
| 835 | /* mii management interface *************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 836 | static int phy_addr_get(struct mv643xx_eth_private *mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 837 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 838 | static void read_smi_reg(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 839 | unsigned int phy_reg, unsigned int *value) |
| 840 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 841 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
| 842 | int phy_addr = phy_addr_get(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 843 | unsigned long flags; |
| 844 | int i; |
| 845 | |
| 846 | /* the SMI register is a shared resource */ |
| 847 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 848 | |
| 849 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 850 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 851 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 852 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 853 | goto out; |
| 854 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 855 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 856 | } |
| 857 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 858 | writel((phy_addr << 16) | (phy_reg << 21) | SMI_OPCODE_READ, smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 859 | |
| 860 | /* now wait for the data to be valid */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 861 | for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 862 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 863 | printk("%s: PHY read timeout\n", mp->dev->name); |
| 864 | goto out; |
| 865 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 866 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | *value = readl(smi_reg) & 0xffff; |
| 870 | out: |
| 871 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 872 | } |
| 873 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 874 | static void write_smi_reg(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 875 | unsigned int phy_reg, unsigned int value) |
| 876 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 877 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
| 878 | int phy_addr = phy_addr_get(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 879 | unsigned long flags; |
| 880 | int i; |
| 881 | |
| 882 | /* the SMI register is a shared resource */ |
| 883 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 884 | |
| 885 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 886 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 887 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 888 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 889 | goto out; |
| 890 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 891 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 892 | } |
| 893 | |
| 894 | writel((phy_addr << 16) | (phy_reg << 21) | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 895 | SMI_OPCODE_WRITE | (value & 0xffff), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 896 | out: |
| 897 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 898 | } |
| 899 | |
| 900 | |
| 901 | /* mib counters *************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 902 | static void clear_mib_counters(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 903 | { |
| 904 | unsigned int port_num = mp->port_num; |
| 905 | int i; |
| 906 | |
| 907 | /* Perform dummy reads from MIB counters */ |
Lennert Buytenhek | 4b8e365 | 2008-06-01 01:29:58 +0200 | [diff] [blame] | 908 | for (i = 0; i < 0x80; i += 4) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 909 | rdl(mp, MIB_COUNTERS(port_num) + i); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 910 | } |
| 911 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 912 | static inline u32 read_mib(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 913 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 914 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 915 | } |
| 916 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 917 | static void update_mib_counters(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 918 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 919 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 920 | |
Lennert Buytenhek | 4b8e365 | 2008-06-01 01:29:58 +0200 | [diff] [blame] | 921 | p->good_octets_received += read_mib(mp, 0x00); |
| 922 | p->good_octets_received += (u64)read_mib(mp, 0x04) << 32; |
| 923 | p->bad_octets_received += read_mib(mp, 0x08); |
| 924 | p->internal_mac_transmit_err += read_mib(mp, 0x0c); |
| 925 | p->good_frames_received += read_mib(mp, 0x10); |
| 926 | p->bad_frames_received += read_mib(mp, 0x14); |
| 927 | p->broadcast_frames_received += read_mib(mp, 0x18); |
| 928 | p->multicast_frames_received += read_mib(mp, 0x1c); |
| 929 | p->frames_64_octets += read_mib(mp, 0x20); |
| 930 | p->frames_65_to_127_octets += read_mib(mp, 0x24); |
| 931 | p->frames_128_to_255_octets += read_mib(mp, 0x28); |
| 932 | p->frames_256_to_511_octets += read_mib(mp, 0x2c); |
| 933 | p->frames_512_to_1023_octets += read_mib(mp, 0x30); |
| 934 | p->frames_1024_to_max_octets += read_mib(mp, 0x34); |
| 935 | p->good_octets_sent += read_mib(mp, 0x38); |
| 936 | p->good_octets_sent += (u64)read_mib(mp, 0x3c) << 32; |
| 937 | p->good_frames_sent += read_mib(mp, 0x40); |
| 938 | p->excessive_collision += read_mib(mp, 0x44); |
| 939 | p->multicast_frames_sent += read_mib(mp, 0x48); |
| 940 | p->broadcast_frames_sent += read_mib(mp, 0x4c); |
| 941 | p->unrec_mac_control_received += read_mib(mp, 0x50); |
| 942 | p->fc_sent += read_mib(mp, 0x54); |
| 943 | p->good_fc_received += read_mib(mp, 0x58); |
| 944 | p->bad_fc_received += read_mib(mp, 0x5c); |
| 945 | p->undersize_received += read_mib(mp, 0x60); |
| 946 | p->fragments_received += read_mib(mp, 0x64); |
| 947 | p->oversize_received += read_mib(mp, 0x68); |
| 948 | p->jabber_received += read_mib(mp, 0x6c); |
| 949 | p->mac_receive_error += read_mib(mp, 0x70); |
| 950 | p->bad_crc_event += read_mib(mp, 0x74); |
| 951 | p->collision += read_mib(mp, 0x78); |
| 952 | p->late_collision += read_mib(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 953 | } |
| 954 | |
| 955 | |
| 956 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 957 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 958 | char stat_string[ETH_GSTRING_LEN]; |
| 959 | int sizeof_stat; |
| 960 | int stat_offset; |
| 961 | }; |
| 962 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 963 | #define MV643XX_ETH_STAT(m) FIELD_SIZEOF(struct mv643xx_eth_private, m), \ |
| 964 | offsetof(struct mv643xx_eth_private, m) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 965 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 966 | static const struct mv643xx_eth_stats mv643xx_eth_gstrings_stats[] = { |
| 967 | { "rx_packets", MV643XX_ETH_STAT(stats.rx_packets) }, |
| 968 | { "tx_packets", MV643XX_ETH_STAT(stats.tx_packets) }, |
| 969 | { "rx_bytes", MV643XX_ETH_STAT(stats.rx_bytes) }, |
| 970 | { "tx_bytes", MV643XX_ETH_STAT(stats.tx_bytes) }, |
| 971 | { "rx_errors", MV643XX_ETH_STAT(stats.rx_errors) }, |
| 972 | { "tx_errors", MV643XX_ETH_STAT(stats.tx_errors) }, |
| 973 | { "rx_dropped", MV643XX_ETH_STAT(stats.rx_dropped) }, |
| 974 | { "tx_dropped", MV643XX_ETH_STAT(stats.tx_dropped) }, |
| 975 | { "good_octets_received", MV643XX_ETH_STAT(mib_counters.good_octets_received) }, |
| 976 | { "bad_octets_received", MV643XX_ETH_STAT(mib_counters.bad_octets_received) }, |
| 977 | { "internal_mac_transmit_err", MV643XX_ETH_STAT(mib_counters.internal_mac_transmit_err) }, |
| 978 | { "good_frames_received", MV643XX_ETH_STAT(mib_counters.good_frames_received) }, |
| 979 | { "bad_frames_received", MV643XX_ETH_STAT(mib_counters.bad_frames_received) }, |
| 980 | { "broadcast_frames_received", MV643XX_ETH_STAT(mib_counters.broadcast_frames_received) }, |
| 981 | { "multicast_frames_received", MV643XX_ETH_STAT(mib_counters.multicast_frames_received) }, |
| 982 | { "frames_64_octets", MV643XX_ETH_STAT(mib_counters.frames_64_octets) }, |
| 983 | { "frames_65_to_127_octets", MV643XX_ETH_STAT(mib_counters.frames_65_to_127_octets) }, |
| 984 | { "frames_128_to_255_octets", MV643XX_ETH_STAT(mib_counters.frames_128_to_255_octets) }, |
| 985 | { "frames_256_to_511_octets", MV643XX_ETH_STAT(mib_counters.frames_256_to_511_octets) }, |
| 986 | { "frames_512_to_1023_octets", MV643XX_ETH_STAT(mib_counters.frames_512_to_1023_octets) }, |
| 987 | { "frames_1024_to_max_octets", MV643XX_ETH_STAT(mib_counters.frames_1024_to_max_octets) }, |
| 988 | { "good_octets_sent", MV643XX_ETH_STAT(mib_counters.good_octets_sent) }, |
| 989 | { "good_frames_sent", MV643XX_ETH_STAT(mib_counters.good_frames_sent) }, |
| 990 | { "excessive_collision", MV643XX_ETH_STAT(mib_counters.excessive_collision) }, |
| 991 | { "multicast_frames_sent", MV643XX_ETH_STAT(mib_counters.multicast_frames_sent) }, |
| 992 | { "broadcast_frames_sent", MV643XX_ETH_STAT(mib_counters.broadcast_frames_sent) }, |
| 993 | { "unrec_mac_control_received", MV643XX_ETH_STAT(mib_counters.unrec_mac_control_received) }, |
| 994 | { "fc_sent", MV643XX_ETH_STAT(mib_counters.fc_sent) }, |
| 995 | { "good_fc_received", MV643XX_ETH_STAT(mib_counters.good_fc_received) }, |
| 996 | { "bad_fc_received", MV643XX_ETH_STAT(mib_counters.bad_fc_received) }, |
| 997 | { "undersize_received", MV643XX_ETH_STAT(mib_counters.undersize_received) }, |
| 998 | { "fragments_received", MV643XX_ETH_STAT(mib_counters.fragments_received) }, |
| 999 | { "oversize_received", MV643XX_ETH_STAT(mib_counters.oversize_received) }, |
| 1000 | { "jabber_received", MV643XX_ETH_STAT(mib_counters.jabber_received) }, |
| 1001 | { "mac_receive_error", MV643XX_ETH_STAT(mib_counters.mac_receive_error) }, |
| 1002 | { "bad_crc_event", MV643XX_ETH_STAT(mib_counters.bad_crc_event) }, |
| 1003 | { "collision", MV643XX_ETH_STAT(mib_counters.collision) }, |
| 1004 | { "late_collision", MV643XX_ETH_STAT(mib_counters.late_collision) }, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1005 | }; |
| 1006 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1007 | #define MV643XX_ETH_STATS_LEN ARRAY_SIZE(mv643xx_eth_gstrings_stats) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1008 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1009 | 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] | 1010 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1011 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1012 | int err; |
| 1013 | |
| 1014 | spin_lock_irq(&mp->lock); |
| 1015 | err = mii_ethtool_gset(&mp->mii, cmd); |
| 1016 | spin_unlock_irq(&mp->lock); |
| 1017 | |
| 1018 | /* The PHY may support 1000baseT_Half, but the mv643xx does not */ |
| 1019 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1020 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1021 | |
| 1022 | return err; |
| 1023 | } |
| 1024 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1025 | 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] | 1026 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1027 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1028 | int err; |
| 1029 | |
| 1030 | spin_lock_irq(&mp->lock); |
| 1031 | err = mii_ethtool_sset(&mp->mii, cmd); |
| 1032 | spin_unlock_irq(&mp->lock); |
| 1033 | |
| 1034 | return err; |
| 1035 | } |
| 1036 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1037 | static void mv643xx_eth_get_drvinfo(struct net_device *netdev, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1038 | struct ethtool_drvinfo *drvinfo) |
| 1039 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1040 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1041 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1042 | strncpy(drvinfo->fw_version, "N/A", 32); |
| 1043 | strncpy(drvinfo->bus_info, "mv643xx", 32); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1044 | drvinfo->n_stats = MV643XX_ETH_STATS_LEN; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1045 | } |
| 1046 | |
| 1047 | static int mv643xx_eth_nway_restart(struct net_device *dev) |
| 1048 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1049 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1050 | |
| 1051 | return mii_nway_restart(&mp->mii); |
| 1052 | } |
| 1053 | |
| 1054 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1055 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1056 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1057 | |
| 1058 | return mii_link_ok(&mp->mii); |
| 1059 | } |
| 1060 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1061 | static void mv643xx_eth_get_strings(struct net_device *netdev, uint32_t stringset, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1062 | uint8_t *data) |
| 1063 | { |
| 1064 | int i; |
| 1065 | |
| 1066 | switch(stringset) { |
| 1067 | case ETH_SS_STATS: |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1068 | for (i=0; i < MV643XX_ETH_STATS_LEN; i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1069 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1070 | mv643xx_eth_gstrings_stats[i].stat_string, |
| 1071 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1072 | } |
| 1073 | break; |
| 1074 | } |
| 1075 | } |
| 1076 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1077 | static void mv643xx_eth_get_ethtool_stats(struct net_device *netdev, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1078 | struct ethtool_stats *stats, uint64_t *data) |
| 1079 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1080 | struct mv643xx_eth_private *mp = netdev->priv; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1081 | int i; |
| 1082 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1083 | update_mib_counters(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1084 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1085 | for (i = 0; i < MV643XX_ETH_STATS_LEN; i++) { |
| 1086 | char *p = (char *)mp+mv643xx_eth_gstrings_stats[i].stat_offset; |
| 1087 | data[i] = (mv643xx_eth_gstrings_stats[i].sizeof_stat == |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1088 | sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p; |
| 1089 | } |
| 1090 | } |
| 1091 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1092 | static int mv643xx_eth_get_sset_count(struct net_device *netdev, int sset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1093 | { |
| 1094 | switch (sset) { |
| 1095 | case ETH_SS_STATS: |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1096 | return MV643XX_ETH_STATS_LEN; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1097 | default: |
| 1098 | return -EOPNOTSUPP; |
| 1099 | } |
| 1100 | } |
| 1101 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1102 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
| 1103 | .get_settings = mv643xx_eth_get_settings, |
| 1104 | .set_settings = mv643xx_eth_set_settings, |
| 1105 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1106 | .get_link = mv643xx_eth_get_link, |
| 1107 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1108 | .get_sset_count = mv643xx_eth_get_sset_count, |
| 1109 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
| 1110 | .get_strings = mv643xx_eth_get_strings, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1111 | .nway_reset = mv643xx_eth_nway_restart, |
| 1112 | }; |
| 1113 | |
| 1114 | |
| 1115 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1116 | 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] | 1117 | { |
| 1118 | unsigned int port_num = mp->port_num; |
| 1119 | unsigned int mac_h; |
| 1120 | unsigned int mac_l; |
| 1121 | |
| 1122 | mac_h = rdl(mp, MAC_ADDR_HIGH(port_num)); |
| 1123 | mac_l = rdl(mp, MAC_ADDR_LOW(port_num)); |
| 1124 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1125 | addr[0] = (mac_h >> 24) & 0xff; |
| 1126 | addr[1] = (mac_h >> 16) & 0xff; |
| 1127 | addr[2] = (mac_h >> 8) & 0xff; |
| 1128 | addr[3] = mac_h & 0xff; |
| 1129 | addr[4] = (mac_l >> 8) & 0xff; |
| 1130 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1131 | } |
| 1132 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1133 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1134 | { |
| 1135 | unsigned int port_num = mp->port_num; |
| 1136 | int table_index; |
| 1137 | |
| 1138 | /* Clear DA filter unicast table (Ex_dFUT) */ |
| 1139 | for (table_index = 0; table_index <= 0xC; table_index += 4) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1140 | wrl(mp, UNICAST_TABLE(port_num) + table_index, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1141 | |
| 1142 | for (table_index = 0; table_index <= 0xFC; table_index += 4) { |
| 1143 | /* Clear DA filter special multicast table (Ex_dFSMT) */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1144 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1145 | /* Clear DA filter other multicast table (Ex_dFOMT) */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1146 | wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1147 | } |
| 1148 | } |
| 1149 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1150 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1151 | int table, unsigned char entry) |
| 1152 | { |
| 1153 | unsigned int table_reg; |
| 1154 | unsigned int tbl_offset; |
| 1155 | unsigned int reg_offset; |
| 1156 | |
| 1157 | tbl_offset = (entry / 4) * 4; /* Register offset of DA table entry */ |
| 1158 | reg_offset = entry % 4; /* Entry offset within the register */ |
| 1159 | |
| 1160 | /* Set "accepts frame bit" at specified table entry */ |
| 1161 | table_reg = rdl(mp, table + tbl_offset); |
| 1162 | table_reg |= 0x01 << (8 * reg_offset); |
| 1163 | wrl(mp, table + tbl_offset, table_reg); |
| 1164 | } |
| 1165 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1166 | 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] | 1167 | { |
| 1168 | unsigned int port_num = mp->port_num; |
| 1169 | unsigned int mac_h; |
| 1170 | unsigned int mac_l; |
| 1171 | int table; |
| 1172 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1173 | mac_l = (addr[4] << 8) | (addr[5]); |
| 1174 | mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | |
| 1175 | (addr[3] << 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1176 | |
| 1177 | wrl(mp, MAC_ADDR_LOW(port_num), mac_l); |
| 1178 | wrl(mp, MAC_ADDR_HIGH(port_num), mac_h); |
| 1179 | |
| 1180 | /* Accept frames with this address */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1181 | table = UNICAST_TABLE(port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1182 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1183 | } |
| 1184 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1185 | static void mv643xx_eth_update_mac_address(struct net_device *dev) |
| 1186 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1187 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1188 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1189 | init_mac_tables(mp); |
| 1190 | uc_addr_set(mp, dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1191 | } |
| 1192 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1193 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1194 | { |
| 1195 | int i; |
| 1196 | |
| 1197 | for (i = 0; i < 6; i++) |
| 1198 | /* +2 is for the offset of the HW addr type */ |
| 1199 | dev->dev_addr[i] = ((unsigned char *)addr)[i + 2]; |
| 1200 | mv643xx_eth_update_mac_address(dev); |
| 1201 | return 0; |
| 1202 | } |
| 1203 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1204 | static void mc_addr(struct mv643xx_eth_private *mp, unsigned char *addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1205 | { |
| 1206 | unsigned int port_num = mp->port_num; |
| 1207 | unsigned int mac_h; |
| 1208 | unsigned int mac_l; |
| 1209 | unsigned char crc_result = 0; |
| 1210 | int table; |
| 1211 | int mac_array[48]; |
| 1212 | int crc[8]; |
| 1213 | int i; |
| 1214 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1215 | if ((addr[0] == 0x01) && (addr[1] == 0x00) && |
| 1216 | (addr[2] == 0x5E) && (addr[3] == 0x00) && (addr[4] == 0x00)) { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1217 | table = SPECIAL_MCAST_TABLE(port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1218 | set_filter_table_entry(mp, table, addr[5]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1219 | return; |
| 1220 | } |
| 1221 | |
| 1222 | /* Calculate CRC-8 out of the given address */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1223 | mac_h = (addr[0] << 8) | (addr[1]); |
| 1224 | mac_l = (addr[2] << 24) | (addr[3] << 16) | |
| 1225 | (addr[4] << 8) | (addr[5] << 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1226 | |
| 1227 | for (i = 0; i < 32; i++) |
| 1228 | mac_array[i] = (mac_l >> i) & 0x1; |
| 1229 | for (i = 32; i < 48; i++) |
| 1230 | mac_array[i] = (mac_h >> (i - 32)) & 0x1; |
| 1231 | |
| 1232 | crc[0] = mac_array[45] ^ mac_array[43] ^ mac_array[40] ^ mac_array[39] ^ |
| 1233 | mac_array[35] ^ mac_array[34] ^ mac_array[31] ^ mac_array[30] ^ |
| 1234 | mac_array[28] ^ mac_array[23] ^ mac_array[21] ^ mac_array[19] ^ |
| 1235 | mac_array[18] ^ mac_array[16] ^ mac_array[14] ^ mac_array[12] ^ |
| 1236 | mac_array[8] ^ mac_array[7] ^ mac_array[6] ^ mac_array[0]; |
| 1237 | |
| 1238 | crc[1] = mac_array[46] ^ mac_array[45] ^ mac_array[44] ^ mac_array[43] ^ |
| 1239 | mac_array[41] ^ mac_array[39] ^ mac_array[36] ^ mac_array[34] ^ |
| 1240 | mac_array[32] ^ mac_array[30] ^ mac_array[29] ^ mac_array[28] ^ |
| 1241 | mac_array[24] ^ mac_array[23] ^ mac_array[22] ^ mac_array[21] ^ |
| 1242 | mac_array[20] ^ mac_array[18] ^ mac_array[17] ^ mac_array[16] ^ |
| 1243 | mac_array[15] ^ mac_array[14] ^ mac_array[13] ^ mac_array[12] ^ |
| 1244 | mac_array[9] ^ mac_array[6] ^ mac_array[1] ^ mac_array[0]; |
| 1245 | |
| 1246 | crc[2] = mac_array[47] ^ mac_array[46] ^ mac_array[44] ^ mac_array[43] ^ |
| 1247 | mac_array[42] ^ mac_array[39] ^ mac_array[37] ^ mac_array[34] ^ |
| 1248 | mac_array[33] ^ mac_array[29] ^ mac_array[28] ^ mac_array[25] ^ |
| 1249 | mac_array[24] ^ mac_array[22] ^ mac_array[17] ^ mac_array[15] ^ |
| 1250 | mac_array[13] ^ mac_array[12] ^ mac_array[10] ^ mac_array[8] ^ |
| 1251 | mac_array[6] ^ mac_array[2] ^ mac_array[1] ^ mac_array[0]; |
| 1252 | |
| 1253 | crc[3] = mac_array[47] ^ mac_array[45] ^ mac_array[44] ^ mac_array[43] ^ |
| 1254 | mac_array[40] ^ mac_array[38] ^ mac_array[35] ^ mac_array[34] ^ |
| 1255 | mac_array[30] ^ mac_array[29] ^ mac_array[26] ^ mac_array[25] ^ |
| 1256 | mac_array[23] ^ mac_array[18] ^ mac_array[16] ^ mac_array[14] ^ |
| 1257 | mac_array[13] ^ mac_array[11] ^ mac_array[9] ^ mac_array[7] ^ |
| 1258 | mac_array[3] ^ mac_array[2] ^ mac_array[1]; |
| 1259 | |
| 1260 | crc[4] = mac_array[46] ^ mac_array[45] ^ mac_array[44] ^ mac_array[41] ^ |
| 1261 | mac_array[39] ^ mac_array[36] ^ mac_array[35] ^ mac_array[31] ^ |
| 1262 | mac_array[30] ^ mac_array[27] ^ mac_array[26] ^ mac_array[24] ^ |
| 1263 | mac_array[19] ^ mac_array[17] ^ mac_array[15] ^ mac_array[14] ^ |
| 1264 | mac_array[12] ^ mac_array[10] ^ mac_array[8] ^ mac_array[4] ^ |
| 1265 | mac_array[3] ^ mac_array[2]; |
| 1266 | |
| 1267 | crc[5] = mac_array[47] ^ mac_array[46] ^ mac_array[45] ^ mac_array[42] ^ |
| 1268 | mac_array[40] ^ mac_array[37] ^ mac_array[36] ^ mac_array[32] ^ |
| 1269 | mac_array[31] ^ mac_array[28] ^ mac_array[27] ^ mac_array[25] ^ |
| 1270 | mac_array[20] ^ mac_array[18] ^ mac_array[16] ^ mac_array[15] ^ |
| 1271 | mac_array[13] ^ mac_array[11] ^ mac_array[9] ^ mac_array[5] ^ |
| 1272 | mac_array[4] ^ mac_array[3]; |
| 1273 | |
| 1274 | crc[6] = mac_array[47] ^ mac_array[46] ^ mac_array[43] ^ mac_array[41] ^ |
| 1275 | mac_array[38] ^ mac_array[37] ^ mac_array[33] ^ mac_array[32] ^ |
| 1276 | mac_array[29] ^ mac_array[28] ^ mac_array[26] ^ mac_array[21] ^ |
| 1277 | mac_array[19] ^ mac_array[17] ^ mac_array[16] ^ mac_array[14] ^ |
| 1278 | mac_array[12] ^ mac_array[10] ^ mac_array[6] ^ mac_array[5] ^ |
| 1279 | mac_array[4]; |
| 1280 | |
| 1281 | crc[7] = mac_array[47] ^ mac_array[44] ^ mac_array[42] ^ mac_array[39] ^ |
| 1282 | mac_array[38] ^ mac_array[34] ^ mac_array[33] ^ mac_array[30] ^ |
| 1283 | mac_array[29] ^ mac_array[27] ^ mac_array[22] ^ mac_array[20] ^ |
| 1284 | mac_array[18] ^ mac_array[17] ^ mac_array[15] ^ mac_array[13] ^ |
| 1285 | mac_array[11] ^ mac_array[7] ^ mac_array[6] ^ mac_array[5]; |
| 1286 | |
| 1287 | for (i = 0; i < 8; i++) |
| 1288 | crc_result = crc_result | (crc[i] << i); |
| 1289 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1290 | table = OTHER_MCAST_TABLE(port_num); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1291 | set_filter_table_entry(mp, table, crc_result); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1292 | } |
| 1293 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1294 | static void set_multicast_list(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1295 | { |
| 1296 | |
| 1297 | struct dev_mc_list *mc_list; |
| 1298 | int i; |
| 1299 | int table_index; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1300 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1301 | unsigned int port_num = mp->port_num; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1302 | |
| 1303 | /* If the device is in promiscuous mode or in all multicast mode, |
| 1304 | * we will fully populate both multicast tables with accept. |
| 1305 | * This is guaranteed to yield a match on all multicast addresses... |
| 1306 | */ |
| 1307 | if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI)) { |
| 1308 | for (table_index = 0; table_index <= 0xFC; table_index += 4) { |
| 1309 | /* Set all entries in DA filter special multicast |
| 1310 | * table (Ex_dFSMT) |
| 1311 | * Set for ETH_Q0 for now |
| 1312 | * Bits |
| 1313 | * 0 Accept=1, Drop=0 |
| 1314 | * 3-1 Queue ETH_Q0=0 |
| 1315 | * 7-4 Reserved = 0; |
| 1316 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1317 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0x01010101); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1318 | |
| 1319 | /* Set all entries in DA filter other multicast |
| 1320 | * table (Ex_dFOMT) |
| 1321 | * Set for ETH_Q0 for now |
| 1322 | * Bits |
| 1323 | * 0 Accept=1, Drop=0 |
| 1324 | * 3-1 Queue ETH_Q0=0 |
| 1325 | * 7-4 Reserved = 0; |
| 1326 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1327 | wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0x01010101); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1328 | } |
| 1329 | return; |
| 1330 | } |
| 1331 | |
| 1332 | /* We will clear out multicast tables every time we get the list. |
| 1333 | * Then add the entire new list... |
| 1334 | */ |
| 1335 | for (table_index = 0; table_index <= 0xFC; table_index += 4) { |
| 1336 | /* Clear DA filter special multicast table (Ex_dFSMT) */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1337 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1338 | |
| 1339 | /* Clear DA filter other multicast table (Ex_dFOMT) */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1340 | wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | /* Get pointer to net_device multicast list and add each one... */ |
| 1344 | for (i = 0, mc_list = dev->mc_list; |
| 1345 | (i < 256) && (mc_list != NULL) && (i < dev->mc_count); |
| 1346 | i++, mc_list = mc_list->next) |
| 1347 | if (mc_list->dmi_addrlen == 6) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1348 | mc_addr(mp, mc_list->dmi_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1349 | } |
| 1350 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1351 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
| 1352 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1353 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1354 | u32 config_reg; |
| 1355 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1356 | config_reg = rdl(mp, PORT_CONFIG(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1357 | if (dev->flags & IFF_PROMISC) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1358 | config_reg |= UNICAST_PROMISCUOUS_MODE; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1359 | else |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1360 | config_reg &= ~UNICAST_PROMISCUOUS_MODE; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1361 | wrl(mp, PORT_CONFIG(mp->port_num), config_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1362 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1363 | set_multicast_list(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1364 | } |
| 1365 | |
| 1366 | |
| 1367 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1368 | static void ether_init_rx_desc_ring(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1369 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1370 | volatile struct rx_desc *p_rx_desc; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1371 | int rx_desc_num = mp->rx_ring_size; |
| 1372 | int i; |
| 1373 | |
| 1374 | /* initialize the next_desc_ptr links in the Rx descriptors ring */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1375 | p_rx_desc = (struct rx_desc *)mp->rx_desc_area; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1376 | for (i = 0; i < rx_desc_num; i++) { |
| 1377 | p_rx_desc[i].next_desc_ptr = mp->rx_desc_dma + |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1378 | ((i + 1) % rx_desc_num) * sizeof(struct rx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1379 | } |
| 1380 | |
| 1381 | /* Save Rx desc pointer to driver struct. */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1382 | mp->rx_curr_desc = 0; |
| 1383 | mp->rx_used_desc = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1384 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1385 | mp->rx_desc_area_size = rx_desc_num * sizeof(struct rx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1386 | } |
| 1387 | |
| 1388 | static void mv643xx_eth_free_rx_rings(struct net_device *dev) |
| 1389 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1390 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1391 | int curr; |
| 1392 | |
| 1393 | /* Stop RX Queues */ |
| 1394 | mv643xx_eth_port_disable_rx(mp); |
| 1395 | |
| 1396 | /* Free preallocated skb's on RX rings */ |
| 1397 | for (curr = 0; mp->rx_desc_count && curr < mp->rx_ring_size; curr++) { |
| 1398 | if (mp->rx_skb[curr]) { |
| 1399 | dev_kfree_skb(mp->rx_skb[curr]); |
| 1400 | mp->rx_desc_count--; |
| 1401 | } |
| 1402 | } |
| 1403 | |
| 1404 | if (mp->rx_desc_count) |
| 1405 | printk(KERN_ERR |
| 1406 | "%s: Error in freeing Rx Ring. %d skb's still" |
| 1407 | " stuck in RX Ring - ignoring them\n", dev->name, |
| 1408 | mp->rx_desc_count); |
| 1409 | /* Free RX ring */ |
| 1410 | if (mp->rx_sram_size) |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1411 | iounmap(mp->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1412 | else |
| 1413 | dma_free_coherent(NULL, mp->rx_desc_area_size, |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1414 | mp->rx_desc_area, mp->rx_desc_dma); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1415 | } |
| 1416 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1417 | static void ether_init_tx_desc_ring(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1418 | { |
| 1419 | int tx_desc_num = mp->tx_ring_size; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1420 | struct tx_desc *p_tx_desc; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1421 | int i; |
| 1422 | |
| 1423 | /* Initialize the next_desc_ptr links in the Tx descriptors ring */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1424 | p_tx_desc = (struct tx_desc *)mp->tx_desc_area; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1425 | for (i = 0; i < tx_desc_num; i++) { |
| 1426 | p_tx_desc[i].next_desc_ptr = mp->tx_desc_dma + |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1427 | ((i + 1) % tx_desc_num) * sizeof(struct tx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1428 | } |
| 1429 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1430 | mp->tx_curr_desc = 0; |
| 1431 | mp->tx_used_desc = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1432 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1433 | mp->tx_desc_area_size = tx_desc_num * sizeof(struct tx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1434 | } |
| 1435 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1436 | static int mv643xx_eth_free_tx_descs(struct net_device *dev, int force) |
| 1437 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1438 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1439 | struct tx_desc *desc; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1440 | u32 cmd_sts; |
| 1441 | struct sk_buff *skb; |
| 1442 | unsigned long flags; |
| 1443 | int tx_index; |
| 1444 | dma_addr_t addr; |
| 1445 | int count; |
| 1446 | int released = 0; |
| 1447 | |
| 1448 | while (mp->tx_desc_count > 0) { |
| 1449 | spin_lock_irqsave(&mp->lock, flags); |
| 1450 | |
| 1451 | /* tx_desc_count might have changed before acquiring the lock */ |
| 1452 | if (mp->tx_desc_count <= 0) { |
| 1453 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1454 | return released; |
| 1455 | } |
| 1456 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1457 | tx_index = mp->tx_used_desc; |
| 1458 | desc = &mp->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1459 | cmd_sts = desc->cmd_sts; |
| 1460 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1461 | if (!force && (cmd_sts & BUFFER_OWNED_BY_DMA)) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1462 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1463 | return released; |
| 1464 | } |
| 1465 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1466 | mp->tx_used_desc = (tx_index + 1) % mp->tx_ring_size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1467 | mp->tx_desc_count--; |
| 1468 | |
| 1469 | addr = desc->buf_ptr; |
| 1470 | count = desc->byte_cnt; |
| 1471 | skb = mp->tx_skb[tx_index]; |
| 1472 | if (skb) |
| 1473 | mp->tx_skb[tx_index] = NULL; |
| 1474 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1475 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1476 | printk("%s: Error in TX\n", dev->name); |
| 1477 | dev->stats.tx_errors++; |
| 1478 | } |
| 1479 | |
| 1480 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1481 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1482 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1483 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1484 | else |
| 1485 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1486 | |
| 1487 | if (skb) |
| 1488 | dev_kfree_skb_irq(skb); |
| 1489 | |
| 1490 | released = 1; |
| 1491 | } |
| 1492 | |
| 1493 | return released; |
| 1494 | } |
| 1495 | |
| 1496 | static void mv643xx_eth_free_completed_tx_descs(struct net_device *dev) |
| 1497 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1498 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1499 | |
| 1500 | if (mv643xx_eth_free_tx_descs(dev, 0) && |
| 1501 | mp->tx_ring_size - mp->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 1502 | netif_wake_queue(dev); |
| 1503 | } |
| 1504 | |
| 1505 | static void mv643xx_eth_free_all_tx_descs(struct net_device *dev) |
| 1506 | { |
| 1507 | mv643xx_eth_free_tx_descs(dev, 1); |
| 1508 | } |
| 1509 | |
| 1510 | static void mv643xx_eth_free_tx_rings(struct net_device *dev) |
| 1511 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1512 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1513 | |
| 1514 | /* Stop Tx Queues */ |
| 1515 | mv643xx_eth_port_disable_tx(mp); |
| 1516 | |
| 1517 | /* Free outstanding skb's on TX ring */ |
| 1518 | mv643xx_eth_free_all_tx_descs(dev); |
| 1519 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1520 | BUG_ON(mp->tx_used_desc != mp->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1521 | |
| 1522 | /* Free TX ring */ |
| 1523 | if (mp->tx_sram_size) |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1524 | iounmap(mp->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1525 | else |
| 1526 | dma_free_coherent(NULL, mp->tx_desc_area_size, |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1527 | mp->tx_desc_area, mp->tx_desc_dma); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1528 | } |
| 1529 | |
| 1530 | |
| 1531 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1532 | static void port_reset(struct mv643xx_eth_private *mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1533 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1534 | static void mv643xx_eth_update_pscr(struct net_device *dev, |
| 1535 | struct ethtool_cmd *ecmd) |
| 1536 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1537 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1538 | int port_num = mp->port_num; |
| 1539 | u32 o_pscr, n_pscr; |
| 1540 | unsigned int queues; |
| 1541 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1542 | o_pscr = rdl(mp, PORT_SERIAL_CONTROL(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1543 | n_pscr = o_pscr; |
| 1544 | |
| 1545 | /* clear speed, duplex and rx buffer size fields */ |
| 1546 | n_pscr &= ~(SET_MII_SPEED_TO_100 | |
| 1547 | SET_GMII_SPEED_TO_1000 | |
| 1548 | SET_FULL_DUPLEX_MODE | |
| 1549 | MAX_RX_PACKET_MASK); |
| 1550 | |
| 1551 | if (ecmd->duplex == DUPLEX_FULL) |
| 1552 | n_pscr |= SET_FULL_DUPLEX_MODE; |
| 1553 | |
| 1554 | if (ecmd->speed == SPEED_1000) |
| 1555 | n_pscr |= SET_GMII_SPEED_TO_1000 | |
| 1556 | MAX_RX_PACKET_9700BYTE; |
| 1557 | else { |
| 1558 | if (ecmd->speed == SPEED_100) |
| 1559 | n_pscr |= SET_MII_SPEED_TO_100; |
| 1560 | n_pscr |= MAX_RX_PACKET_1522BYTE; |
| 1561 | } |
| 1562 | |
| 1563 | if (n_pscr != o_pscr) { |
| 1564 | if ((o_pscr & SERIAL_PORT_ENABLE) == 0) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1565 | wrl(mp, PORT_SERIAL_CONTROL(port_num), n_pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1566 | else { |
| 1567 | queues = mv643xx_eth_port_disable_tx(mp); |
| 1568 | |
| 1569 | o_pscr &= ~SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1570 | wrl(mp, PORT_SERIAL_CONTROL(port_num), o_pscr); |
| 1571 | wrl(mp, PORT_SERIAL_CONTROL(port_num), n_pscr); |
| 1572 | wrl(mp, PORT_SERIAL_CONTROL(port_num), n_pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1573 | if (queues) |
| 1574 | mv643xx_eth_port_enable_tx(mp, queues); |
| 1575 | } |
| 1576 | } |
| 1577 | } |
| 1578 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1579 | static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id) |
| 1580 | { |
| 1581 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1582 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1583 | u32 int_cause, int_cause_ext = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1584 | unsigned int port_num = mp->port_num; |
| 1585 | |
| 1586 | /* Read interrupt cause registers */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1587 | int_cause = rdl(mp, INT_CAUSE(port_num)) & (INT_RX | INT_EXT); |
| 1588 | if (int_cause & INT_EXT) { |
| 1589 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1590 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1591 | wrl(mp, INT_CAUSE_EXT(port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | /* PHY status changed */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1595 | if (int_cause_ext & (INT_EXT_LINK | INT_EXT_PHY)) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1596 | struct ethtool_cmd cmd; |
| 1597 | |
| 1598 | if (mii_link_ok(&mp->mii)) { |
| 1599 | mii_ethtool_gset(&mp->mii, &cmd); |
| 1600 | mv643xx_eth_update_pscr(dev, &cmd); |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1601 | mv643xx_eth_port_enable_tx(mp, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1602 | if (!netif_carrier_ok(dev)) { |
| 1603 | netif_carrier_on(dev); |
| 1604 | if (mp->tx_ring_size - mp->tx_desc_count >= |
| 1605 | MAX_DESCS_PER_SKB) |
| 1606 | netif_wake_queue(dev); |
| 1607 | } |
| 1608 | } else if (netif_carrier_ok(dev)) { |
| 1609 | netif_stop_queue(dev); |
| 1610 | netif_carrier_off(dev); |
| 1611 | } |
| 1612 | } |
| 1613 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1614 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1615 | if (int_cause & INT_RX) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1616 | /* schedule the NAPI poll routine to maintain port */ |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1617 | wrl(mp, INT_MASK(port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1618 | |
| 1619 | /* wait for previous write to complete */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1620 | rdl(mp, INT_MASK(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1621 | |
| 1622 | netif_rx_schedule(dev, &mp->napi); |
| 1623 | } |
| 1624 | #else |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1625 | if (int_cause & INT_RX) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1626 | mv643xx_eth_receive_queue(dev, INT_MAX); |
| 1627 | #endif |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1628 | if (int_cause_ext & INT_EXT_TX) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1629 | mv643xx_eth_free_completed_tx_descs(dev); |
| 1630 | |
| 1631 | /* |
| 1632 | * If no real interrupt occured, exit. |
| 1633 | * This can happen when using gigE interrupt coalescing mechanism. |
| 1634 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1635 | if ((int_cause == 0x0) && (int_cause_ext == 0x0)) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1636 | return IRQ_NONE; |
| 1637 | |
| 1638 | return IRQ_HANDLED; |
| 1639 | } |
| 1640 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1641 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1642 | { |
| 1643 | unsigned int phy_reg_data; |
| 1644 | |
| 1645 | /* Reset the PHY */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1646 | read_smi_reg(mp, 0, &phy_reg_data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1647 | phy_reg_data |= 0x8000; /* Set bit 15 to reset the PHY */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1648 | write_smi_reg(mp, 0, phy_reg_data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1649 | |
| 1650 | /* wait for PHY to come out of reset */ |
| 1651 | do { |
| 1652 | udelay(1); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1653 | read_smi_reg(mp, 0, &phy_reg_data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1654 | } while (phy_reg_data & 0x8000); |
| 1655 | } |
| 1656 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1657 | static void port_start(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1658 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1659 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1660 | unsigned int port_num = mp->port_num; |
| 1661 | int tx_curr_desc, rx_curr_desc; |
| 1662 | u32 pscr; |
| 1663 | struct ethtool_cmd ethtool_cmd; |
| 1664 | |
| 1665 | /* Assignment of Tx CTRP of given queue */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1666 | tx_curr_desc = mp->tx_curr_desc; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1667 | wrl(mp, TXQ_CURRENT_DESC_PTR(port_num), |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1668 | (u32)((struct tx_desc *)mp->tx_desc_dma + tx_curr_desc)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1669 | |
| 1670 | /* Assignment of Rx CRDP of given queue */ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1671 | rx_curr_desc = mp->rx_curr_desc; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1672 | wrl(mp, RXQ_CURRENT_DESC_PTR(port_num), |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1673 | (u32)((struct rx_desc *)mp->rx_desc_dma + rx_curr_desc)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1674 | |
| 1675 | /* Add the assigned Ethernet address to the port's address table */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1676 | uc_addr_set(mp, dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1677 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1678 | /* |
| 1679 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1680 | * frames to RX queue #0. |
| 1681 | */ |
| 1682 | wrl(mp, PORT_CONFIG(port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1683 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1684 | /* |
| 1685 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1686 | */ |
| 1687 | wrl(mp, PORT_CONFIG_EXT(port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1688 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1689 | pscr = rdl(mp, PORT_SERIAL_CONTROL(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1690 | |
| 1691 | pscr &= ~(SERIAL_PORT_ENABLE | FORCE_LINK_PASS); |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1692 | wrl(mp, PORT_SERIAL_CONTROL(port_num), pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1693 | |
| 1694 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL | |
| 1695 | DISABLE_AUTO_NEG_SPEED_GMII | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 1696 | DISABLE_AUTO_NEG_FOR_DUPLEX | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1697 | DO_NOT_FORCE_LINK_FAIL | |
| 1698 | SERIAL_PORT_CONTROL_RESERVED; |
| 1699 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1700 | wrl(mp, PORT_SERIAL_CONTROL(port_num), pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1701 | |
| 1702 | pscr |= SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1703 | wrl(mp, PORT_SERIAL_CONTROL(port_num), pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1704 | |
| 1705 | /* Assign port SDMA configuration */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1706 | wrl(mp, SDMA_CONFIG(port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1707 | |
| 1708 | /* Enable port Rx. */ |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1709 | mv643xx_eth_port_enable_rx(mp, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1710 | |
| 1711 | /* Disable port bandwidth limits by clearing MTU register */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1712 | wrl(mp, TX_BW_MTU(port_num), 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1713 | |
| 1714 | /* save phy settings across reset */ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1715 | mv643xx_eth_get_settings(dev, ðtool_cmd); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1716 | phy_reset(mp); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1717 | mv643xx_eth_set_settings(dev, ðtool_cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1718 | } |
| 1719 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1720 | #ifdef MV643XX_ETH_COAL |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1721 | static unsigned int set_rx_coal(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1722 | unsigned int delay) |
| 1723 | { |
| 1724 | unsigned int port_num = mp->port_num; |
| 1725 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1726 | |
| 1727 | /* Set RX Coalescing mechanism */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1728 | wrl(mp, SDMA_CONFIG(port_num), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1729 | ((coal & 0x3fff) << 8) | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1730 | (rdl(mp, SDMA_CONFIG(port_num)) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1731 | & 0xffc000ff)); |
| 1732 | |
| 1733 | return coal; |
| 1734 | } |
| 1735 | #endif |
| 1736 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1737 | static unsigned int set_tx_coal(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1738 | unsigned int delay) |
| 1739 | { |
| 1740 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1741 | |
| 1742 | /* Set TX Coalescing mechanism */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1743 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), coal << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1744 | |
| 1745 | return coal; |
| 1746 | } |
| 1747 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1748 | static void port_init(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1749 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1750 | port_reset(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1751 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1752 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1753 | } |
| 1754 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1755 | static int mv643xx_eth_open(struct net_device *dev) |
| 1756 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1757 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1758 | unsigned int port_num = mp->port_num; |
| 1759 | unsigned int size; |
| 1760 | int err; |
| 1761 | |
| 1762 | /* Clear any pending ethernet port interrupts */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1763 | wrl(mp, INT_CAUSE(port_num), 0); |
| 1764 | wrl(mp, INT_CAUSE_EXT(port_num), 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1765 | /* wait for previous write to complete */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1766 | rdl(mp, INT_CAUSE_EXT(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1767 | |
| 1768 | err = request_irq(dev->irq, mv643xx_eth_int_handler, |
| 1769 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev); |
| 1770 | if (err) { |
| 1771 | printk(KERN_ERR "%s: Can not assign IRQ\n", dev->name); |
| 1772 | return -EAGAIN; |
| 1773 | } |
| 1774 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1775 | port_init(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1776 | |
| 1777 | memset(&mp->timeout, 0, sizeof(struct timer_list)); |
| 1778 | mp->timeout.function = mv643xx_eth_rx_refill_descs_timer_wrapper; |
| 1779 | mp->timeout.data = (unsigned long)dev; |
| 1780 | |
| 1781 | /* Allocate RX and TX skb rings */ |
| 1782 | mp->rx_skb = kmalloc(sizeof(*mp->rx_skb) * mp->rx_ring_size, |
| 1783 | GFP_KERNEL); |
| 1784 | if (!mp->rx_skb) { |
| 1785 | printk(KERN_ERR "%s: Cannot allocate Rx skb ring\n", dev->name); |
| 1786 | err = -ENOMEM; |
| 1787 | goto out_free_irq; |
| 1788 | } |
| 1789 | mp->tx_skb = kmalloc(sizeof(*mp->tx_skb) * mp->tx_ring_size, |
| 1790 | GFP_KERNEL); |
| 1791 | if (!mp->tx_skb) { |
| 1792 | printk(KERN_ERR "%s: Cannot allocate Tx skb ring\n", dev->name); |
| 1793 | err = -ENOMEM; |
| 1794 | goto out_free_rx_skb; |
| 1795 | } |
| 1796 | |
| 1797 | /* Allocate TX ring */ |
| 1798 | mp->tx_desc_count = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1799 | size = mp->tx_ring_size * sizeof(struct tx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1800 | mp->tx_desc_area_size = size; |
| 1801 | |
| 1802 | if (mp->tx_sram_size) { |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1803 | mp->tx_desc_area = ioremap(mp->tx_sram_addr, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1804 | mp->tx_sram_size); |
| 1805 | mp->tx_desc_dma = mp->tx_sram_addr; |
| 1806 | } else |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1807 | mp->tx_desc_area = dma_alloc_coherent(NULL, size, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1808 | &mp->tx_desc_dma, |
| 1809 | GFP_KERNEL); |
| 1810 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1811 | if (!mp->tx_desc_area) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1812 | printk(KERN_ERR "%s: Cannot allocate Tx Ring (size %d bytes)\n", |
| 1813 | dev->name, size); |
| 1814 | err = -ENOMEM; |
| 1815 | goto out_free_tx_skb; |
| 1816 | } |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1817 | BUG_ON((u32) mp->tx_desc_area & 0xf); /* check 16-byte alignment */ |
| 1818 | memset((void *)mp->tx_desc_area, 0, mp->tx_desc_area_size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1819 | |
| 1820 | ether_init_tx_desc_ring(mp); |
| 1821 | |
| 1822 | /* Allocate RX ring */ |
| 1823 | mp->rx_desc_count = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1824 | size = mp->rx_ring_size * sizeof(struct rx_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1825 | mp->rx_desc_area_size = size; |
| 1826 | |
| 1827 | if (mp->rx_sram_size) { |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1828 | mp->rx_desc_area = ioremap(mp->rx_sram_addr, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1829 | mp->rx_sram_size); |
| 1830 | mp->rx_desc_dma = mp->rx_sram_addr; |
| 1831 | } else |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1832 | mp->rx_desc_area = dma_alloc_coherent(NULL, size, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1833 | &mp->rx_desc_dma, |
| 1834 | GFP_KERNEL); |
| 1835 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1836 | if (!mp->rx_desc_area) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1837 | printk(KERN_ERR "%s: Cannot allocate Rx ring (size %d bytes)\n", |
| 1838 | dev->name, size); |
| 1839 | printk(KERN_ERR "%s: Freeing previously allocated TX queues...", |
| 1840 | dev->name); |
| 1841 | if (mp->rx_sram_size) |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1842 | iounmap(mp->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1843 | else |
| 1844 | dma_free_coherent(NULL, mp->tx_desc_area_size, |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1845 | mp->tx_desc_area, mp->tx_desc_dma); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1846 | err = -ENOMEM; |
| 1847 | goto out_free_tx_skb; |
| 1848 | } |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame^] | 1849 | memset((void *)mp->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1850 | |
| 1851 | ether_init_rx_desc_ring(mp); |
| 1852 | |
| 1853 | mv643xx_eth_rx_refill_descs(dev); /* Fill RX ring with skb's */ |
| 1854 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1855 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1856 | napi_enable(&mp->napi); |
| 1857 | #endif |
| 1858 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1859 | port_start(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1860 | |
| 1861 | /* Interrupt Coalescing */ |
| 1862 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1863 | #ifdef MV643XX_ETH_COAL |
| 1864 | mp->rx_int_coal = set_rx_coal(mp, MV643XX_ETH_RX_COAL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1865 | #endif |
| 1866 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1867 | mp->tx_int_coal = set_tx_coal(mp, MV643XX_ETH_TX_COAL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1868 | |
| 1869 | /* Unmask phy and link status changes interrupts */ |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1870 | wrl(mp, INT_MASK_EXT(port_num), INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1871 | |
| 1872 | /* Unmask RX buffer and TX end interrupt */ |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1873 | wrl(mp, INT_MASK(port_num), INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1874 | |
| 1875 | return 0; |
| 1876 | |
| 1877 | out_free_tx_skb: |
| 1878 | kfree(mp->tx_skb); |
| 1879 | out_free_rx_skb: |
| 1880 | kfree(mp->rx_skb); |
| 1881 | out_free_irq: |
| 1882 | free_irq(dev->irq, dev); |
| 1883 | |
| 1884 | return err; |
| 1885 | } |
| 1886 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1887 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1888 | { |
| 1889 | unsigned int port_num = mp->port_num; |
| 1890 | unsigned int reg_data; |
| 1891 | |
| 1892 | mv643xx_eth_port_disable_tx(mp); |
| 1893 | mv643xx_eth_port_disable_rx(mp); |
| 1894 | |
| 1895 | /* Clear all MIB counters */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1896 | clear_mib_counters(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1897 | |
| 1898 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1899 | reg_data = rdl(mp, PORT_SERIAL_CONTROL(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1900 | reg_data &= ~(SERIAL_PORT_ENABLE | |
| 1901 | DO_NOT_FORCE_LINK_FAIL | |
| 1902 | FORCE_LINK_PASS); |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1903 | wrl(mp, PORT_SERIAL_CONTROL(port_num), reg_data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1904 | } |
| 1905 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1906 | static int mv643xx_eth_stop(struct net_device *dev) |
| 1907 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1908 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1909 | unsigned int port_num = mp->port_num; |
| 1910 | |
| 1911 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1912 | wrl(mp, INT_MASK(port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1913 | /* wait for previous write to complete */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1914 | rdl(mp, INT_MASK(port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1915 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1916 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1917 | napi_disable(&mp->napi); |
| 1918 | #endif |
| 1919 | netif_carrier_off(dev); |
| 1920 | netif_stop_queue(dev); |
| 1921 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1922 | port_reset(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1923 | |
| 1924 | mv643xx_eth_free_tx_rings(dev); |
| 1925 | mv643xx_eth_free_rx_rings(dev); |
| 1926 | |
| 1927 | free_irq(dev->irq, dev); |
| 1928 | |
| 1929 | return 0; |
| 1930 | } |
| 1931 | |
| 1932 | static int mv643xx_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 1933 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1934 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1935 | |
| 1936 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 1937 | } |
| 1938 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1939 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 1940 | { |
| 1941 | if ((new_mtu > 9500) || (new_mtu < 64)) |
| 1942 | return -EINVAL; |
| 1943 | |
| 1944 | dev->mtu = new_mtu; |
| 1945 | if (!netif_running(dev)) |
| 1946 | return 0; |
| 1947 | |
| 1948 | /* |
| 1949 | * Stop and then re-open the interface. This will allocate RX |
| 1950 | * skbs of the new MTU. |
| 1951 | * There is a possible danger that the open will not succeed, |
| 1952 | * due to memory being full, which might fail the open function. |
| 1953 | */ |
| 1954 | mv643xx_eth_stop(dev); |
| 1955 | if (mv643xx_eth_open(dev)) { |
| 1956 | printk(KERN_ERR "%s: Fatal error on opening device\n", |
| 1957 | dev->name); |
| 1958 | } |
| 1959 | |
| 1960 | return 0; |
| 1961 | } |
| 1962 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1963 | static void mv643xx_eth_tx_timeout_task(struct work_struct *ugly) |
| 1964 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1965 | struct mv643xx_eth_private *mp = container_of(ugly, struct mv643xx_eth_private, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1966 | tx_timeout_task); |
| 1967 | struct net_device *dev = mp->dev; |
| 1968 | |
| 1969 | if (!netif_running(dev)) |
| 1970 | return; |
| 1971 | |
| 1972 | netif_stop_queue(dev); |
| 1973 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1974 | port_reset(mp); |
| 1975 | port_start(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1976 | |
| 1977 | if (mp->tx_ring_size - mp->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 1978 | netif_wake_queue(dev); |
| 1979 | } |
| 1980 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1981 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 1982 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1983 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1984 | |
| 1985 | printk(KERN_INFO "%s: TX timeout ", dev->name); |
| 1986 | |
| 1987 | /* Do the reset outside of interrupt context */ |
| 1988 | schedule_work(&mp->tx_timeout_task); |
| 1989 | } |
| 1990 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1991 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1992 | static void mv643xx_eth_netpoll(struct net_device *netdev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1993 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1994 | struct mv643xx_eth_private *mp = netdev_priv(netdev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 1995 | int port_num = mp->port_num; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1996 | |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1997 | wrl(mp, INT_MASK(port_num), 0x00000000); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 1998 | /* wait for previous write to complete */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1999 | rdl(mp, INT_MASK(port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2000 | |
Al Viro | 9da3b1a | 2006-10-08 15:00:44 +0100 | [diff] [blame] | 2001 | mv643xx_eth_int_handler(netdev->irq, netdev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2002 | |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 2003 | wrl(mp, INT_MASK(port_num), INT_RX | INT_CAUSE_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2004 | } |
| 2005 | #endif |
| 2006 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2007 | static int mv643xx_eth_mdio_read(struct net_device *dev, int phy_id, int location) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2008 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2009 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2010 | int val; |
| 2011 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2012 | read_smi_reg(mp, location, &val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2013 | return val; |
| 2014 | } |
| 2015 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2016 | static void mv643xx_eth_mdio_write(struct net_device *dev, int phy_id, int location, int val) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2017 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2018 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2019 | write_smi_reg(mp, location, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2020 | } |
| 2021 | |
| 2022 | |
| 2023 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2024 | static void |
| 2025 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2026 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2027 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2028 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2029 | u32 win_enable; |
| 2030 | u32 win_protect; |
| 2031 | int i; |
| 2032 | |
| 2033 | for (i = 0; i < 6; i++) { |
| 2034 | writel(0, base + WINDOW_BASE(i)); |
| 2035 | writel(0, base + WINDOW_SIZE(i)); |
| 2036 | if (i < 4) |
| 2037 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2038 | } |
| 2039 | |
| 2040 | win_enable = 0x3f; |
| 2041 | win_protect = 0; |
| 2042 | |
| 2043 | for (i = 0; i < dram->num_cs; i++) { |
| 2044 | struct mbus_dram_window *cs = dram->cs + i; |
| 2045 | |
| 2046 | writel((cs->base & 0xffff0000) | |
| 2047 | (cs->mbus_attr << 8) | |
| 2048 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2049 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2050 | |
| 2051 | win_enable &= ~(1 << i); |
| 2052 | win_protect |= 3 << (2 * i); |
| 2053 | } |
| 2054 | |
| 2055 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2056 | msp->win_protect = win_protect; |
| 2057 | } |
| 2058 | |
| 2059 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2060 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2061 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2062 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2063 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2064 | struct resource *res; |
| 2065 | int ret; |
| 2066 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2067 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2068 | printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); |
| 2069 | |
| 2070 | ret = -EINVAL; |
| 2071 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2072 | if (res == NULL) |
| 2073 | goto out; |
| 2074 | |
| 2075 | ret = -ENOMEM; |
| 2076 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2077 | if (msp == NULL) |
| 2078 | goto out; |
| 2079 | memset(msp, 0, sizeof(*msp)); |
| 2080 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2081 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2082 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2083 | goto out_free; |
| 2084 | |
| 2085 | spin_lock_init(&msp->phy_lock); |
| 2086 | msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; |
| 2087 | |
| 2088 | platform_set_drvdata(pdev, msp); |
| 2089 | |
| 2090 | /* |
| 2091 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2092 | */ |
| 2093 | if (pd != NULL && pd->dram != NULL) |
| 2094 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2095 | |
| 2096 | return 0; |
| 2097 | |
| 2098 | out_free: |
| 2099 | kfree(msp); |
| 2100 | out: |
| 2101 | return ret; |
| 2102 | } |
| 2103 | |
| 2104 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2105 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2106 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2107 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2108 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2109 | kfree(msp); |
| 2110 | |
| 2111 | return 0; |
| 2112 | } |
| 2113 | |
| 2114 | static struct platform_driver mv643xx_eth_shared_driver = { |
| 2115 | .probe = mv643xx_eth_shared_probe, |
| 2116 | .remove = mv643xx_eth_shared_remove, |
| 2117 | .driver = { |
| 2118 | .name = MV643XX_ETH_SHARED_NAME, |
| 2119 | .owner = THIS_MODULE, |
| 2120 | }, |
| 2121 | }; |
| 2122 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2123 | 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] | 2124 | { |
| 2125 | u32 reg_data; |
| 2126 | int addr_shift = 5 * mp->port_num; |
| 2127 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 2128 | reg_data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2129 | reg_data &= ~(0x1f << addr_shift); |
| 2130 | reg_data |= (phy_addr & 0x1f) << addr_shift; |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 2131 | wrl(mp, PHY_ADDR, reg_data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2132 | } |
| 2133 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2134 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2135 | { |
| 2136 | unsigned int reg_data; |
| 2137 | |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 2138 | reg_data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2139 | |
| 2140 | return ((reg_data >> (5 * mp->port_num)) & 0x1f); |
| 2141 | } |
| 2142 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2143 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2144 | { |
| 2145 | unsigned int phy_reg_data0; |
| 2146 | int auto_neg; |
| 2147 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2148 | read_smi_reg(mp, 0, &phy_reg_data0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2149 | auto_neg = phy_reg_data0 & 0x1000; |
| 2150 | phy_reg_data0 ^= 0x1000; /* invert auto_neg */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2151 | write_smi_reg(mp, 0, phy_reg_data0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2152 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2153 | read_smi_reg(mp, 0, &phy_reg_data0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2154 | if ((phy_reg_data0 & 0x1000) == auto_neg) |
| 2155 | return -ENODEV; /* change didn't take */ |
| 2156 | |
| 2157 | phy_reg_data0 ^= 0x1000; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2158 | write_smi_reg(mp, 0, phy_reg_data0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2159 | return 0; |
| 2160 | } |
| 2161 | |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2162 | static void mv643xx_init_ethtool_cmd(struct net_device *dev, int phy_address, |
| 2163 | int speed, int duplex, |
| 2164 | struct ethtool_cmd *cmd) |
| 2165 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2166 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2167 | |
| 2168 | memset(cmd, 0, sizeof(*cmd)); |
| 2169 | |
| 2170 | cmd->port = PORT_MII; |
| 2171 | cmd->transceiver = XCVR_INTERNAL; |
| 2172 | cmd->phy_address = phy_address; |
| 2173 | |
| 2174 | if (speed == 0) { |
| 2175 | cmd->autoneg = AUTONEG_ENABLE; |
| 2176 | /* mii lib checks, but doesn't use speed on AUTONEG_ENABLE */ |
| 2177 | cmd->speed = SPEED_100; |
| 2178 | cmd->advertising = ADVERTISED_10baseT_Half | |
| 2179 | ADVERTISED_10baseT_Full | |
| 2180 | ADVERTISED_100baseT_Half | |
| 2181 | ADVERTISED_100baseT_Full; |
| 2182 | if (mp->mii.supports_gmii) |
| 2183 | cmd->advertising |= ADVERTISED_1000baseT_Full; |
| 2184 | } else { |
| 2185 | cmd->autoneg = AUTONEG_DISABLE; |
| 2186 | cmd->speed = speed; |
| 2187 | cmd->duplex = duplex; |
| 2188 | } |
| 2189 | } |
| 2190 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2191 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | struct mv643xx_eth_platform_data *pd; |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2194 | int port_num; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2195 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2196 | struct net_device *dev; |
| 2197 | u8 *p; |
| 2198 | struct resource *res; |
| 2199 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2200 | struct ethtool_cmd cmd; |
Dale Farnsworth | 0199987 | 2006-01-27 01:18:01 -0700 | [diff] [blame] | 2201 | int duplex = DUPLEX_HALF; |
| 2202 | int speed = 0; /* default to auto-negotiation */ |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2203 | DECLARE_MAC_BUF(mac); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2205 | pd = pdev->dev.platform_data; |
| 2206 | if (pd == NULL) { |
| 2207 | printk(KERN_ERR "No mv643xx_eth_platform_data\n"); |
| 2208 | return -ENODEV; |
| 2209 | } |
| 2210 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2211 | if (pd->shared == NULL) { |
| 2212 | printk(KERN_ERR "No mv643xx_eth_platform_data->shared\n"); |
| 2213 | return -ENODEV; |
| 2214 | } |
| 2215 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2216 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2217 | if (!dev) |
| 2218 | return -ENOMEM; |
| 2219 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2220 | platform_set_drvdata(pdev, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2221 | |
| 2222 | mp = netdev_priv(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2223 | mp->dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2224 | #ifdef MV643XX_ETH_NAPI |
| 2225 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2226 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | |
| 2228 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2229 | BUG_ON(!res); |
| 2230 | dev->irq = res->start; |
| 2231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2232 | dev->open = mv643xx_eth_open; |
| 2233 | dev->stop = mv643xx_eth_stop; |
| 2234 | dev->hard_start_xmit = mv643xx_eth_start_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2235 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2236 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
| 2237 | |
| 2238 | /* No need to Tx Timeout */ |
| 2239 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2240 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2241 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2242 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2243 | #endif |
| 2244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | dev->base_addr = 0; |
| 2247 | dev->change_mtu = mv643xx_eth_change_mtu; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2248 | dev->do_ioctl = mv643xx_eth_do_ioctl; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2249 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2250 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2251 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2252 | #ifdef MAX_SKB_FRAGS |
| 2253 | /* |
| 2254 | * Zero copy can only work if we use Discovery II memory. Else, we will |
| 2255 | * have to map the buffers to ISA memory which is only 16 MB |
| 2256 | */ |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2257 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | #endif |
| 2259 | #endif |
| 2260 | |
| 2261 | /* Configure the timeout task */ |
Al Viro | 91c7c56 | 2006-12-06 19:50:06 +0000 | [diff] [blame] | 2262 | INIT_WORK(&mp->tx_timeout_task, mv643xx_eth_tx_timeout_task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | |
| 2264 | spin_lock_init(&mp->lock); |
| 2265 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2266 | mp->shared = platform_get_drvdata(pd->shared); |
Gabriel Paubert | fadac40 | 2007-03-23 12:03:52 -0700 | [diff] [blame] | 2267 | port_num = mp->port_num = pd->port_number; |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2268 | |
Lennert Buytenhek | f2ce825 | 2008-04-24 01:27:17 +0200 | [diff] [blame] | 2269 | if (mp->shared->win_protect) |
| 2270 | wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect); |
| 2271 | |
Lennert Buytenhek | ce4e2e4 | 2008-04-24 01:29:59 +0200 | [diff] [blame] | 2272 | mp->shared_smi = mp->shared; |
| 2273 | if (pd->shared_smi != NULL) |
| 2274 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2276 | /* set default config values */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2277 | uc_addr_get(mp, dev->dev_addr); |
| 2278 | mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2279 | mp->tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2280 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2281 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2282 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2283 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2284 | if (pd->phy_addr || pd->force_phy_addr) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2285 | phy_addr_set(mp, pd->phy_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2287 | if (pd->rx_queue_size) |
| 2288 | mp->rx_ring_size = pd->rx_queue_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2289 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2290 | if (pd->tx_queue_size) |
| 2291 | mp->tx_ring_size = pd->tx_queue_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2292 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2293 | if (pd->tx_sram_size) { |
| 2294 | mp->tx_sram_size = pd->tx_sram_size; |
| 2295 | mp->tx_sram_addr = pd->tx_sram_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | } |
| 2297 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2298 | if (pd->rx_sram_size) { |
| 2299 | mp->rx_sram_size = pd->rx_sram_size; |
| 2300 | mp->rx_sram_addr = pd->rx_sram_addr; |
| 2301 | } |
| 2302 | |
| 2303 | duplex = pd->duplex; |
| 2304 | speed = pd->speed; |
| 2305 | |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2306 | /* Hook up MII support for ethtool */ |
| 2307 | mp->mii.dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2308 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2309 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2310 | mp->mii.phy_id = phy_addr_get(mp); |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2311 | mp->mii.phy_id_mask = 0x3f; |
| 2312 | mp->mii.reg_num_mask = 0x1f; |
| 2313 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2314 | err = phy_detect(mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2315 | if (err) { |
Lennert Buytenhek | c1b35a2 | 2008-03-18 11:37:19 -0700 | [diff] [blame] | 2316 | pr_debug("%s: No PHY detected at addr %d\n", |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2317 | dev->name, phy_addr_get(mp)); |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2318 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | } |
| 2320 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2321 | phy_reset(mp); |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2322 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2323 | mv643xx_init_ethtool_cmd(dev, mp->mii.phy_id, speed, duplex, &cmd); |
| 2324 | mv643xx_eth_update_pscr(dev, &cmd); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2325 | mv643xx_eth_set_settings(dev, &cmd); |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2326 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2327 | SET_NETDEV_DEV(dev, &pdev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | err = register_netdev(dev); |
| 2329 | if (err) |
| 2330 | goto out; |
| 2331 | |
| 2332 | p = dev->dev_addr; |
| 2333 | printk(KERN_NOTICE |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 2334 | "%s: port %d with MAC address %s\n", |
| 2335 | dev->name, port_num, print_mac(mac, p)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2336 | |
| 2337 | if (dev->features & NETIF_F_SG) |
| 2338 | printk(KERN_NOTICE "%s: Scatter Gather Enabled\n", dev->name); |
| 2339 | |
| 2340 | if (dev->features & NETIF_F_IP_CSUM) |
| 2341 | printk(KERN_NOTICE "%s: TX TCP/IP Checksumming Supported\n", |
| 2342 | dev->name); |
| 2343 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2344 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2345 | printk(KERN_NOTICE "%s: RX TCP/UDP Checksum Offload ON \n", dev->name); |
| 2346 | #endif |
| 2347 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2348 | #ifdef MV643XX_ETH_COAL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2349 | printk(KERN_NOTICE "%s: TX and RX Interrupt Coalescing ON \n", |
| 2350 | dev->name); |
| 2351 | #endif |
| 2352 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2353 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2354 | printk(KERN_NOTICE "%s: RX NAPI Enabled \n", dev->name); |
| 2355 | #endif |
| 2356 | |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2357 | if (mp->tx_sram_size > 0) |
| 2358 | printk(KERN_NOTICE "%s: Using SRAM\n", dev->name); |
| 2359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | return 0; |
| 2361 | |
| 2362 | out: |
| 2363 | free_netdev(dev); |
| 2364 | |
| 2365 | return err; |
| 2366 | } |
| 2367 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2368 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2369 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2370 | struct net_device *dev = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2371 | |
| 2372 | unregister_netdev(dev); |
| 2373 | flush_scheduled_work(); |
| 2374 | |
| 2375 | free_netdev(dev); |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2376 | platform_set_drvdata(pdev, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | return 0; |
| 2378 | } |
| 2379 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2380 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2381 | { |
| 2382 | struct net_device *dev = platform_get_drvdata(pdev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2383 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2384 | unsigned int port_num = mp->port_num; |
| 2385 | |
| 2386 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 2387 | wrl(mp, INT_MASK(port_num), 0); |
| 2388 | rdl(mp, INT_MASK(port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2389 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2390 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2391 | } |
| 2392 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2393 | static struct platform_driver mv643xx_eth_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2394 | .probe = mv643xx_eth_probe, |
| 2395 | .remove = mv643xx_eth_remove, |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2396 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2397 | .driver = { |
| 2398 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2399 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2400 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2401 | }; |
| 2402 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2403 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2404 | { |
| 2405 | int rc; |
| 2406 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2407 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2409 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2410 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2411 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | } |
| 2413 | return rc; |
| 2414 | } |
| 2415 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2416 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2417 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2418 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2419 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2420 | } |
| 2421 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2422 | module_init(mv643xx_eth_init_module); |
| 2423 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2424 | |
| 2425 | MODULE_LICENSE("GPL"); |
| 2426 | MODULE_AUTHOR( "Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani" |
| 2427 | " and Dale Farnsworth"); |
| 2428 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2429 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |
| 2430 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |