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 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 63 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 64 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 65 | #define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1) |
| 66 | #else |
| 67 | #define MAX_DESCS_PER_SKB 1 |
| 68 | #endif |
| 69 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 70 | /* |
| 71 | * Registers shared between all ports. |
| 72 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 73 | #define PHY_ADDR 0x0000 |
| 74 | #define SMI_REG 0x0004 |
| 75 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 76 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 77 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 78 | #define WINDOW_BAR_ENABLE 0x0290 |
| 79 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 80 | |
| 81 | /* |
| 82 | * Per-port registers. |
| 83 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 84 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 85 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 86 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
| 87 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) |
| 88 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) |
| 89 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) |
| 90 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) |
| 91 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 92 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 93 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 94 | #define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) |
| 95 | #define TX_BW_RATE(p) (0x0450 + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 96 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 97 | #define TX_BW_BURST(p) (0x045c + ((p) << 10)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 98 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 99 | #define INT_RX 0x0007fbfc |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 100 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 101 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 102 | #define INT_EXT_LINK 0x00100000 |
| 103 | #define INT_EXT_PHY 0x00010000 |
| 104 | #define INT_EXT_TX_ERROR_0 0x00000100 |
| 105 | #define INT_EXT_TX_0 0x00000001 |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 106 | #define INT_EXT_TX 0x0000ffff |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 107 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
| 108 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) |
| 109 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 110 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 111 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 112 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
| 113 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) |
| 114 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) |
| 115 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 116 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 117 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 118 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 119 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 120 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 121 | |
| 122 | /* |
| 123 | * SDMA configuration register. |
| 124 | */ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 125 | #define RX_BURST_SIZE_4_64BIT (2 << 1) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 126 | #define BLM_RX_NO_SWAP (1 << 4) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 127 | #define BLM_TX_NO_SWAP (1 << 5) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 128 | #define TX_BURST_SIZE_4_64BIT (2 << 22) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 129 | |
| 130 | #if defined(__BIG_ENDIAN) |
| 131 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
| 132 | RX_BURST_SIZE_4_64BIT | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 133 | TX_BURST_SIZE_4_64BIT |
| 134 | #elif defined(__LITTLE_ENDIAN) |
| 135 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
| 136 | RX_BURST_SIZE_4_64BIT | \ |
| 137 | BLM_RX_NO_SWAP | \ |
| 138 | BLM_TX_NO_SWAP | \ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 139 | TX_BURST_SIZE_4_64BIT |
| 140 | #else |
| 141 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 142 | #endif |
| 143 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 144 | |
| 145 | /* |
| 146 | * Port serial control register. |
| 147 | */ |
| 148 | #define SET_MII_SPEED_TO_100 (1 << 24) |
| 149 | #define SET_GMII_SPEED_TO_1000 (1 << 23) |
| 150 | #define SET_FULL_DUPLEX_MODE (1 << 21) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 151 | #define MAX_RX_PACKET_1522BYTE (1 << 17) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 152 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
| 153 | #define MAX_RX_PACKET_MASK (7 << 17) |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 154 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
| 155 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) |
| 156 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) |
| 157 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) |
| 158 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) |
| 159 | #define FORCE_LINK_PASS (1 << 1) |
| 160 | #define SERIAL_PORT_ENABLE (1 << 0) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 161 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 162 | #define DEFAULT_RX_QUEUE_SIZE 400 |
| 163 | #define DEFAULT_TX_QUEUE_SIZE 800 |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 164 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 165 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 166 | /* |
| 167 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 168 | */ |
| 169 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 170 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 171 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 172 | u16 buf_size; /* Buffer size */ |
| 173 | u32 cmd_sts; /* Descriptor command status */ |
| 174 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 175 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 176 | }; |
| 177 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 178 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 179 | u16 byte_cnt; /* buffer byte count */ |
| 180 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 181 | u32 cmd_sts; /* Command/status field */ |
| 182 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 183 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 184 | }; |
| 185 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 186 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 187 | u32 cmd_sts; /* Descriptor command status */ |
| 188 | u16 buf_size; /* Buffer size */ |
| 189 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 190 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 191 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 192 | }; |
| 193 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 194 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 195 | u32 cmd_sts; /* Command/status field */ |
| 196 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 197 | u16 byte_cnt; /* buffer byte count */ |
| 198 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 199 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 200 | }; |
| 201 | #else |
| 202 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 203 | #endif |
| 204 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 205 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 206 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 207 | |
| 208 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 209 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 210 | |
| 211 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 212 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 213 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 214 | #define RX_FIRST_DESC 0x08000000 |
| 215 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 216 | |
| 217 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 218 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 219 | #define GEN_CRC 0x00400000 |
| 220 | #define TX_FIRST_DESC 0x00200000 |
| 221 | #define TX_LAST_DESC 0x00100000 |
| 222 | #define ZERO_PADDING 0x00080000 |
| 223 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 224 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 225 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 226 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 227 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 228 | |
| 229 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 230 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 231 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 232 | /* |
| 233 | * Ethernet controller base address. |
| 234 | */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 235 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 236 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 237 | /* |
| 238 | * Protects access to SMI_REG, which is shared between ports. |
| 239 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 240 | spinlock_t phy_lock; |
| 241 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 242 | /* |
| 243 | * Per-port MBUS window access register value. |
| 244 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 245 | u32 win_protect; |
| 246 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 247 | /* |
| 248 | * Hardware-specific parameters. |
| 249 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 250 | unsigned int t_clk; |
| 251 | }; |
| 252 | |
| 253 | |
| 254 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 255 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 256 | u64 good_octets_received; |
| 257 | u32 bad_octets_received; |
| 258 | u32 internal_mac_transmit_err; |
| 259 | u32 good_frames_received; |
| 260 | u32 bad_frames_received; |
| 261 | u32 broadcast_frames_received; |
| 262 | u32 multicast_frames_received; |
| 263 | u32 frames_64_octets; |
| 264 | u32 frames_65_to_127_octets; |
| 265 | u32 frames_128_to_255_octets; |
| 266 | u32 frames_256_to_511_octets; |
| 267 | u32 frames_512_to_1023_octets; |
| 268 | u32 frames_1024_to_max_octets; |
| 269 | u64 good_octets_sent; |
| 270 | u32 good_frames_sent; |
| 271 | u32 excessive_collision; |
| 272 | u32 multicast_frames_sent; |
| 273 | u32 broadcast_frames_sent; |
| 274 | u32 unrec_mac_control_received; |
| 275 | u32 fc_sent; |
| 276 | u32 good_fc_received; |
| 277 | u32 bad_fc_received; |
| 278 | u32 undersize_received; |
| 279 | u32 fragments_received; |
| 280 | u32 oversize_received; |
| 281 | u32 jabber_received; |
| 282 | u32 mac_receive_error; |
| 283 | u32 bad_crc_event; |
| 284 | u32 collision; |
| 285 | u32 late_collision; |
| 286 | }; |
| 287 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 288 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 289 | int index; |
| 290 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 291 | int rx_ring_size; |
| 292 | |
| 293 | int rx_desc_count; |
| 294 | int rx_curr_desc; |
| 295 | int rx_used_desc; |
| 296 | |
| 297 | struct rx_desc *rx_desc_area; |
| 298 | dma_addr_t rx_desc_dma; |
| 299 | int rx_desc_area_size; |
| 300 | struct sk_buff **rx_skb; |
| 301 | |
| 302 | struct timer_list rx_oom; |
| 303 | }; |
| 304 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 305 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 306 | int index; |
| 307 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 308 | int tx_ring_size; |
| 309 | |
| 310 | int tx_desc_count; |
| 311 | int tx_curr_desc; |
| 312 | int tx_used_desc; |
| 313 | |
| 314 | struct tx_desc *tx_desc_area; |
| 315 | dma_addr_t tx_desc_dma; |
| 316 | int tx_desc_area_size; |
| 317 | struct sk_buff **tx_skb; |
| 318 | }; |
| 319 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 320 | struct mv643xx_eth_private { |
| 321 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 322 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 323 | |
| 324 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 325 | |
| 326 | struct mv643xx_eth_shared_private *shared_smi; |
| 327 | int phy_addr; |
| 328 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 329 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 330 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 331 | struct mib_counters mib_counters; |
| 332 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 333 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 334 | |
| 335 | /* |
| 336 | * RX state. |
| 337 | */ |
| 338 | int default_rx_ring_size; |
| 339 | unsigned long rx_desc_sram_addr; |
| 340 | int rx_desc_sram_size; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 341 | u8 rxq_mask; |
| 342 | int rxq_primary; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 343 | struct napi_struct napi; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 344 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 345 | |
| 346 | /* |
| 347 | * TX state. |
| 348 | */ |
| 349 | int default_tx_ring_size; |
| 350 | unsigned long tx_desc_sram_addr; |
| 351 | int tx_desc_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 352 | u8 txq_mask; |
| 353 | int txq_primary; |
| 354 | struct tx_queue txq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 355 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 356 | int tx_clean_threshold; |
| 357 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 358 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 360 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 361 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 362 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 364 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | } |
| 366 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 367 | 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] | 368 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 369 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 372 | |
| 373 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 374 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 376 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 377 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 379 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 380 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 381 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 382 | } |
| 383 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 384 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 385 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 386 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 387 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 388 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 389 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 390 | static void rxq_disable(struct rx_queue *rxq) |
| 391 | { |
| 392 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 393 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 394 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 395 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 396 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 397 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 398 | } |
| 399 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 400 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 401 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 402 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 403 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 404 | } |
| 405 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 406 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 407 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 408 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 409 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 410 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 411 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 412 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 413 | udelay(10); |
| 414 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 415 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 416 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 417 | { |
| 418 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 419 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 420 | /* |
| 421 | * netif_{stop,wake}_queue() flow control only applies to |
| 422 | * the primary queue. |
| 423 | */ |
| 424 | BUG_ON(txq->index != mp->txq_primary); |
| 425 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 426 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 427 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | |
| 431 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 432 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 433 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 434 | static void rxq_refill(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 435 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 436 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 437 | unsigned long flags; |
| 438 | |
| 439 | spin_lock_irqsave(&mp->lock, flags); |
| 440 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 441 | while (rxq->rx_desc_count < rxq->rx_ring_size) { |
| 442 | int skb_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 443 | struct sk_buff *skb; |
| 444 | int unaligned; |
| 445 | int rx; |
| 446 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 447 | /* |
| 448 | * Reserve 2+14 bytes for an ethernet header (the |
| 449 | * hardware automatically prepends 2 bytes of dummy |
| 450 | * data to each received packet), 4 bytes for a VLAN |
| 451 | * header, and 4 bytes for the trailing FCS -- 24 |
| 452 | * bytes total. |
| 453 | */ |
| 454 | skb_size = mp->dev->mtu + 24; |
| 455 | |
| 456 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 457 | if (skb == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | break; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 459 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 460 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 461 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 462 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 463 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 464 | rxq->rx_desc_count++; |
| 465 | rx = rxq->rx_used_desc; |
| 466 | rxq->rx_used_desc = (rx + 1) % rxq->rx_ring_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 467 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 468 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 469 | skb_size, DMA_FROM_DEVICE); |
| 470 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 471 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 472 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 473 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 474 | RX_ENABLE_INTERRUPT; |
| 475 | wmb(); |
| 476 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 477 | /* |
| 478 | * The hardware automatically prepends 2 bytes of |
| 479 | * dummy data to each received packet, so that the |
| 480 | * IP header ends up 16-byte aligned. |
| 481 | */ |
| 482 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 484 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 485 | if (rxq->rx_desc_count == 0) { |
| 486 | rxq->rx_oom.expires = jiffies + (HZ / 10); |
| 487 | add_timer(&rxq->rx_oom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 489 | |
| 490 | spin_unlock_irqrestore(&mp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 493 | static inline void rxq_refill_timer_wrapper(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 495 | rxq_refill((struct rx_queue *)data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | } |
| 497 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 498 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 500 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 501 | struct net_device_stats *stats = &mp->dev->stats; |
| 502 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 504 | rx = 0; |
| 505 | while (rx < budget) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 506 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 507 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 508 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 509 | unsigned long flags; |
| 510 | |
| 511 | spin_lock_irqsave(&mp->lock, flags); |
| 512 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 513 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 514 | |
| 515 | cmd_sts = rx_desc->cmd_sts; |
| 516 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 517 | spin_unlock_irqrestore(&mp->lock, flags); |
| 518 | break; |
| 519 | } |
| 520 | rmb(); |
| 521 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 522 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 523 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 524 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 525 | rxq->rx_curr_desc = (rxq->rx_curr_desc + 1) % rxq->rx_ring_size; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 526 | |
| 527 | spin_unlock_irqrestore(&mp->lock, flags); |
| 528 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 529 | dma_unmap_single(NULL, rx_desc->buf_ptr + 2, |
| 530 | mp->dev->mtu + 24, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 531 | rxq->rx_desc_count--; |
| 532 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 533 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 534 | /* |
| 535 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 536 | * |
| 537 | * Note that the descriptor byte count includes 2 dummy |
| 538 | * bytes automatically inserted by the hardware at the |
| 539 | * start of the packet (which we don't count), and a 4 |
| 540 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 541 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 543 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 544 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 546 | * In case we received a packet without first / last bits |
| 547 | * on, or the error summary bit is set, the packet needs |
| 548 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 550 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 551 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 552 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 554 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 555 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 556 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 558 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 559 | "received packet spanning " |
| 560 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 562 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 563 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | stats->rx_errors++; |
| 565 | |
| 566 | dev_kfree_skb_irq(skb); |
| 567 | } else { |
| 568 | /* |
| 569 | * The -4 is for the CRC in the trailer of the |
| 570 | * received packet |
| 571 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 572 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 574 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 576 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 577 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 579 | skb->protocol = eth_type_trans(skb, mp->dev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 580 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | netif_receive_skb(skb); |
| 582 | #else |
| 583 | netif_rx(skb); |
| 584 | #endif |
| 585 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 586 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 587 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 589 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 590 | rxq_refill(rxq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 592 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | } |
| 594 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 595 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 596 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 598 | struct mv643xx_eth_private *mp; |
| 599 | int rx; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 600 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 601 | |
| 602 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 604 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | if (++mp->tx_clean_threshold > 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | mp->tx_clean_threshold = 0; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 607 | for (i = 0; i < 8; i++) |
| 608 | if (mp->txq_mask & (1 << i)) |
| 609 | txq_reclaim(mp->txq + i, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | } |
| 611 | #endif |
| 612 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 613 | rx = 0; |
| 614 | for (i = 7; rx < budget && i >= 0; i--) |
| 615 | if (mp->rxq_mask & (1 << i)) |
| 616 | rx += rxq_process(mp->rxq + i, budget - rx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 618 | if (rx < budget) { |
| 619 | netif_rx_complete(mp->dev, napi); |
| 620 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 621 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 622 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_EXT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | } |
| 624 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 625 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | } |
| 627 | #endif |
| 628 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 629 | |
| 630 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 631 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 632 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 633 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 634 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 635 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 636 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 637 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 638 | return 1; |
| 639 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 640 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 641 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 642 | } |
| 643 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 644 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 645 | { |
| 646 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 647 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 648 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 649 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 650 | tx_desc_curr = txq->tx_curr_desc; |
| 651 | txq->tx_curr_desc = (tx_desc_curr + 1) % txq->tx_ring_size; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 652 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 653 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 654 | |
| 655 | return tx_desc_curr; |
| 656 | } |
| 657 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 658 | static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 659 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 660 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 661 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 662 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 663 | for (frag = 0; frag < nr_frags; frag++) { |
| 664 | skb_frag_t *this_frag; |
| 665 | int tx_index; |
| 666 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 667 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 668 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 669 | tx_index = txq_alloc_desc_index(txq); |
| 670 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 671 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 672 | /* |
| 673 | * The last fragment will generate an interrupt |
| 674 | * which will free the skb on TX completion. |
| 675 | */ |
| 676 | if (frag == nr_frags - 1) { |
| 677 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 678 | ZERO_PADDING | TX_LAST_DESC | |
| 679 | TX_ENABLE_INTERRUPT; |
| 680 | txq->tx_skb[tx_index] = skb; |
| 681 | } else { |
| 682 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 683 | txq->tx_skb[tx_index] = NULL; |
| 684 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 685 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 686 | desc->l4i_chk = 0; |
| 687 | desc->byte_cnt = this_frag->size; |
| 688 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 689 | this_frag->page_offset, |
| 690 | this_frag->size, |
| 691 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 692 | } |
| 693 | } |
| 694 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 695 | static inline __be16 sum16_as_be(__sum16 sum) |
| 696 | { |
| 697 | return (__force __be16)sum; |
| 698 | } |
| 699 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 700 | static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 701 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 702 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 703 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 704 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 705 | u32 cmd_sts; |
| 706 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 707 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 708 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 709 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 710 | tx_index = txq_alloc_desc_index(txq); |
| 711 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 712 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 713 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 714 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 715 | |
| 716 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 717 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 718 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 719 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 720 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 721 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | desc->byte_cnt = length; |
| 725 | 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] | 726 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 727 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 728 | BUG_ON(skb->protocol != htons(ETH_P_IP)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 729 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 730 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 731 | GEN_IP_V4_CHECKSUM | |
| 732 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 733 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 734 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 735 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 736 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 737 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 738 | break; |
| 739 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 740 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 741 | break; |
| 742 | default: |
| 743 | BUG(); |
| 744 | } |
| 745 | } else { |
| 746 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 747 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 748 | desc->l4i_chk = 0; |
| 749 | } |
| 750 | |
| 751 | /* ensure all other descriptors are written before first cmd_sts */ |
| 752 | wmb(); |
| 753 | desc->cmd_sts = cmd_sts; |
| 754 | |
| 755 | /* ensure all descriptors are written before poking hardware */ |
| 756 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 757 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 758 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 759 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 760 | } |
| 761 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 762 | static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 764 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 765 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 766 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 769 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 770 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 771 | dev_printk(KERN_DEBUG, &dev->dev, |
| 772 | "failed to linearize skb with tiny " |
| 773 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 774 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 775 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | spin_lock_irqsave(&mp->lock, flags); |
| 778 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 779 | txq = mp->txq + mp->txq_primary; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 780 | |
| 781 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) { |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 782 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 783 | if (txq->index == mp->txq_primary && net_ratelimit()) |
| 784 | dev_printk(KERN_ERR, &dev->dev, |
| 785 | "primary tx queue full?!\n"); |
| 786 | kfree_skb(skb); |
| 787 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 788 | } |
| 789 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 790 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 791 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | stats->tx_packets++; |
| 793 | dev->trans_start = jiffies; |
| 794 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 795 | if (txq->index == mp->txq_primary) { |
| 796 | int entries_left; |
| 797 | |
| 798 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
| 799 | if (entries_left < MAX_DESCS_PER_SKB) |
| 800 | netif_stop_queue(dev); |
| 801 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 802 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | spin_unlock_irqrestore(&mp->lock, flags); |
| 804 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 805 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | } |
| 807 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 808 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 809 | /* tx rate control **********************************************************/ |
| 810 | /* |
| 811 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 812 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 813 | */ |
| 814 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 815 | { |
| 816 | int token_rate; |
| 817 | int mtu; |
| 818 | int bucket_size; |
| 819 | |
| 820 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 821 | if (token_rate > 1023) |
| 822 | token_rate = 1023; |
| 823 | |
| 824 | mtu = (mp->dev->mtu + 255) >> 8; |
| 825 | if (mtu > 63) |
| 826 | mtu = 63; |
| 827 | |
| 828 | bucket_size = (burst + 255) >> 8; |
| 829 | if (bucket_size > 65535) |
| 830 | bucket_size = 65535; |
| 831 | |
| 832 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 833 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 834 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 835 | } |
| 836 | |
| 837 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 838 | { |
| 839 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 840 | int token_rate; |
| 841 | int bucket_size; |
| 842 | |
| 843 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 844 | if (token_rate > 1023) |
| 845 | token_rate = 1023; |
| 846 | |
| 847 | bucket_size = (burst + 255) >> 8; |
| 848 | if (bucket_size > 65535) |
| 849 | bucket_size = 65535; |
| 850 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 851 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
| 852 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 853 | (bucket_size << 10) | token_rate); |
| 854 | } |
| 855 | |
| 856 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 857 | { |
| 858 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 859 | int off; |
| 860 | u32 val; |
| 861 | |
| 862 | /* |
| 863 | * Turn on fixed priority mode. |
| 864 | */ |
| 865 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
| 866 | |
| 867 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 868 | val |= 1 << txq->index; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 869 | wrl(mp, off, val); |
| 870 | } |
| 871 | |
| 872 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 873 | { |
| 874 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 875 | int off; |
| 876 | u32 val; |
| 877 | |
| 878 | /* |
| 879 | * Turn off fixed priority mode. |
| 880 | */ |
| 881 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
| 882 | |
| 883 | val = rdl(mp, off); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 884 | val &= ~(1 << txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 885 | wrl(mp, off, val); |
| 886 | |
| 887 | /* |
| 888 | * Configure WRR weight for this queue. |
| 889 | */ |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 890 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 891 | |
| 892 | val = rdl(mp, off); |
| 893 | val = (val & ~0xff) | (weight & 0xff); |
| 894 | wrl(mp, off, val); |
| 895 | } |
| 896 | |
| 897 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 898 | /* mii management interface *************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 899 | #define SMI_BUSY 0x10000000 |
| 900 | #define SMI_READ_VALID 0x08000000 |
| 901 | #define SMI_OPCODE_READ 0x04000000 |
| 902 | #define SMI_OPCODE_WRITE 0x00000000 |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 903 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 904 | static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, |
| 905 | unsigned int reg, unsigned int *value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 906 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 907 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 908 | unsigned long flags; |
| 909 | int i; |
| 910 | |
| 911 | /* the SMI register is a shared resource */ |
| 912 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 913 | |
| 914 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 915 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 916 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 917 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 918 | goto out; |
| 919 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 920 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 921 | } |
| 922 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 923 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 924 | |
| 925 | /* now wait for the data to be valid */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 926 | for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 927 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 928 | printk("%s: PHY read timeout\n", mp->dev->name); |
| 929 | goto out; |
| 930 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 931 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 932 | } |
| 933 | |
| 934 | *value = readl(smi_reg) & 0xffff; |
| 935 | out: |
| 936 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 937 | } |
| 938 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 939 | static void smi_reg_write(struct mv643xx_eth_private *mp, |
| 940 | unsigned int addr, |
| 941 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 942 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 943 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 944 | unsigned long flags; |
| 945 | int i; |
| 946 | |
| 947 | /* the SMI register is a shared resource */ |
| 948 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 949 | |
| 950 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 951 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 952 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 953 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 954 | goto out; |
| 955 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 956 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 957 | } |
| 958 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 959 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 960 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 961 | out: |
| 962 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 963 | } |
| 964 | |
| 965 | |
| 966 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 967 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 968 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 969 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 970 | } |
| 971 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 972 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 973 | { |
| 974 | int i; |
| 975 | |
| 976 | for (i = 0; i < 0x80; i += 4) |
| 977 | mib_read(mp, i); |
| 978 | } |
| 979 | |
| 980 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 981 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 982 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 983 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 984 | p->good_octets_received += mib_read(mp, 0x00); |
| 985 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 986 | p->bad_octets_received += mib_read(mp, 0x08); |
| 987 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 988 | p->good_frames_received += mib_read(mp, 0x10); |
| 989 | p->bad_frames_received += mib_read(mp, 0x14); |
| 990 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 991 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 992 | p->frames_64_octets += mib_read(mp, 0x20); |
| 993 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 994 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 995 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 996 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 997 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 998 | p->good_octets_sent += mib_read(mp, 0x38); |
| 999 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 1000 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1001 | p->excessive_collision += mib_read(mp, 0x44); |
| 1002 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1003 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1004 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1005 | p->fc_sent += mib_read(mp, 0x54); |
| 1006 | p->good_fc_received += mib_read(mp, 0x58); |
| 1007 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1008 | p->undersize_received += mib_read(mp, 0x60); |
| 1009 | p->fragments_received += mib_read(mp, 0x64); |
| 1010 | p->oversize_received += mib_read(mp, 0x68); |
| 1011 | p->jabber_received += mib_read(mp, 0x6c); |
| 1012 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1013 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1014 | p->collision += mib_read(mp, 0x78); |
| 1015 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1016 | } |
| 1017 | |
| 1018 | |
| 1019 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1020 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1021 | char stat_string[ETH_GSTRING_LEN]; |
| 1022 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1023 | int netdev_off; |
| 1024 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1025 | }; |
| 1026 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1027 | #define SSTAT(m) \ |
| 1028 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1029 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1030 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1031 | #define MIBSTAT(m) \ |
| 1032 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1033 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1034 | |
| 1035 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1036 | SSTAT(rx_packets), |
| 1037 | SSTAT(tx_packets), |
| 1038 | SSTAT(rx_bytes), |
| 1039 | SSTAT(tx_bytes), |
| 1040 | SSTAT(rx_errors), |
| 1041 | SSTAT(tx_errors), |
| 1042 | SSTAT(rx_dropped), |
| 1043 | SSTAT(tx_dropped), |
| 1044 | MIBSTAT(good_octets_received), |
| 1045 | MIBSTAT(bad_octets_received), |
| 1046 | MIBSTAT(internal_mac_transmit_err), |
| 1047 | MIBSTAT(good_frames_received), |
| 1048 | MIBSTAT(bad_frames_received), |
| 1049 | MIBSTAT(broadcast_frames_received), |
| 1050 | MIBSTAT(multicast_frames_received), |
| 1051 | MIBSTAT(frames_64_octets), |
| 1052 | MIBSTAT(frames_65_to_127_octets), |
| 1053 | MIBSTAT(frames_128_to_255_octets), |
| 1054 | MIBSTAT(frames_256_to_511_octets), |
| 1055 | MIBSTAT(frames_512_to_1023_octets), |
| 1056 | MIBSTAT(frames_1024_to_max_octets), |
| 1057 | MIBSTAT(good_octets_sent), |
| 1058 | MIBSTAT(good_frames_sent), |
| 1059 | MIBSTAT(excessive_collision), |
| 1060 | MIBSTAT(multicast_frames_sent), |
| 1061 | MIBSTAT(broadcast_frames_sent), |
| 1062 | MIBSTAT(unrec_mac_control_received), |
| 1063 | MIBSTAT(fc_sent), |
| 1064 | MIBSTAT(good_fc_received), |
| 1065 | MIBSTAT(bad_fc_received), |
| 1066 | MIBSTAT(undersize_received), |
| 1067 | MIBSTAT(fragments_received), |
| 1068 | MIBSTAT(oversize_received), |
| 1069 | MIBSTAT(jabber_received), |
| 1070 | MIBSTAT(mac_receive_error), |
| 1071 | MIBSTAT(bad_crc_event), |
| 1072 | MIBSTAT(collision), |
| 1073 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1074 | }; |
| 1075 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1076 | 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] | 1077 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1078 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1079 | int err; |
| 1080 | |
| 1081 | spin_lock_irq(&mp->lock); |
| 1082 | err = mii_ethtool_gset(&mp->mii, cmd); |
| 1083 | spin_unlock_irq(&mp->lock); |
| 1084 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1085 | /* |
| 1086 | * The MAC does not support 1000baseT_Half. |
| 1087 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1088 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1089 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1090 | |
| 1091 | return err; |
| 1092 | } |
| 1093 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1094 | 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] | 1095 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1096 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1097 | int err; |
| 1098 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1099 | /* |
| 1100 | * The MAC does not support 1000baseT_Half. |
| 1101 | */ |
| 1102 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1103 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1104 | spin_lock_irq(&mp->lock); |
| 1105 | err = mii_ethtool_sset(&mp->mii, cmd); |
| 1106 | spin_unlock_irq(&mp->lock); |
| 1107 | |
| 1108 | return err; |
| 1109 | } |
| 1110 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1111 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1112 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1113 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1114 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1115 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1116 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1117 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1118 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1119 | } |
| 1120 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1121 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1122 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1123 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1124 | |
| 1125 | return mii_nway_restart(&mp->mii); |
| 1126 | } |
| 1127 | |
| 1128 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1129 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1130 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1131 | |
| 1132 | return mii_link_ok(&mp->mii); |
| 1133 | } |
| 1134 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1135 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1136 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1137 | { |
| 1138 | int i; |
| 1139 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1140 | if (stringset == ETH_SS_STATS) { |
| 1141 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1142 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1143 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1144 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1145 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1146 | } |
| 1147 | } |
| 1148 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1149 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1150 | struct ethtool_stats *stats, |
| 1151 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1152 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1153 | struct mv643xx_eth_private *mp = dev->priv; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1154 | int i; |
| 1155 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1156 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1157 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1158 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1159 | const struct mv643xx_eth_stats *stat; |
| 1160 | void *p; |
| 1161 | |
| 1162 | stat = mv643xx_eth_stats + i; |
| 1163 | |
| 1164 | if (stat->netdev_off >= 0) |
| 1165 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1166 | else |
| 1167 | p = ((void *)mp) + stat->mp_off; |
| 1168 | |
| 1169 | data[i] = (stat->sizeof_stat == 8) ? |
| 1170 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1171 | } |
| 1172 | } |
| 1173 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1174 | static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1175 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1176 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1177 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1178 | |
| 1179 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1180 | } |
| 1181 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1182 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1183 | .get_settings = mv643xx_eth_get_settings, |
| 1184 | .set_settings = mv643xx_eth_set_settings, |
| 1185 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1186 | .nway_reset = mv643xx_eth_nway_reset, |
| 1187 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1188 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1189 | .get_strings = mv643xx_eth_get_strings, |
| 1190 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1191 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1192 | }; |
| 1193 | |
| 1194 | |
| 1195 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1196 | 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] | 1197 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1198 | unsigned int mac_h; |
| 1199 | unsigned int mac_l; |
| 1200 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1201 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1202 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1203 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1204 | addr[0] = (mac_h >> 24) & 0xff; |
| 1205 | addr[1] = (mac_h >> 16) & 0xff; |
| 1206 | addr[2] = (mac_h >> 8) & 0xff; |
| 1207 | addr[3] = mac_h & 0xff; |
| 1208 | addr[4] = (mac_l >> 8) & 0xff; |
| 1209 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1210 | } |
| 1211 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1212 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1213 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1214 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1215 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1216 | for (i = 0; i < 0x100; i += 4) { |
| 1217 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1218 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1219 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1220 | |
| 1221 | for (i = 0; i < 0x10; i += 4) |
| 1222 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1223 | } |
| 1224 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1225 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1226 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1227 | { |
| 1228 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1229 | |
| 1230 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1231 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1232 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1233 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1234 | } |
| 1235 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1236 | 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] | 1237 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1238 | unsigned int mac_h; |
| 1239 | unsigned int mac_l; |
| 1240 | int table; |
| 1241 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1242 | mac_l = (addr[4] << 8) | addr[5]; |
| 1243 | mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1244 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1245 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1246 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1247 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1248 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1249 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1250 | } |
| 1251 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1252 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1253 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1254 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1255 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1256 | /* +2 is for the offset of the HW addr type */ |
| 1257 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1258 | |
| 1259 | init_mac_tables(mp); |
| 1260 | uc_addr_set(mp, dev->dev_addr); |
| 1261 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1262 | return 0; |
| 1263 | } |
| 1264 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1265 | static int addr_crc(unsigned char *addr) |
| 1266 | { |
| 1267 | int crc = 0; |
| 1268 | int i; |
| 1269 | |
| 1270 | for (i = 0; i < 6; i++) { |
| 1271 | int j; |
| 1272 | |
| 1273 | crc = (crc ^ addr[i]) << 8; |
| 1274 | for (j = 7; j >= 0; j--) { |
| 1275 | if (crc & (0x100 << j)) |
| 1276 | crc ^= 0x107 << j; |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | return crc; |
| 1281 | } |
| 1282 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1283 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1284 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1285 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1286 | u32 port_config; |
| 1287 | struct dev_addr_list *addr; |
| 1288 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1289 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1290 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1291 | if (dev->flags & IFF_PROMISC) |
| 1292 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1293 | else |
| 1294 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1295 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1296 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1297 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1298 | int port_num = mp->port_num; |
| 1299 | u32 accept = 0x01010101; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1300 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1301 | for (i = 0; i < 0x100; i += 4) { |
| 1302 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1303 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1304 | } |
| 1305 | return; |
| 1306 | } |
| 1307 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1308 | for (i = 0; i < 0x100; i += 4) { |
| 1309 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1310 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1311 | } |
| 1312 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1313 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1314 | u8 *a = addr->da_addr; |
| 1315 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1316 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1317 | if (addr->da_addrlen != 6) |
| 1318 | continue; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1319 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1320 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1321 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1322 | set_filter_table_entry(mp, table, a[5]); |
| 1323 | } else { |
| 1324 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1325 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1326 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1327 | set_filter_table_entry(mp, table, crc); |
| 1328 | } |
| 1329 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1330 | } |
| 1331 | |
| 1332 | |
| 1333 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1334 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1335 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1336 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1337 | struct rx_desc *rx_desc; |
| 1338 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1339 | int i; |
| 1340 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1341 | rxq->index = index; |
| 1342 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1343 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1344 | |
| 1345 | rxq->rx_desc_count = 0; |
| 1346 | rxq->rx_curr_desc = 0; |
| 1347 | rxq->rx_used_desc = 0; |
| 1348 | |
| 1349 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1350 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1351 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1352 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1353 | mp->rx_desc_sram_size); |
| 1354 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1355 | } else { |
| 1356 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1357 | &rxq->rx_desc_dma, |
| 1358 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1359 | } |
| 1360 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1361 | if (rxq->rx_desc_area == NULL) { |
| 1362 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1363 | "can't allocate rx ring (%d bytes)\n", size); |
| 1364 | goto out; |
| 1365 | } |
| 1366 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1367 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1368 | rxq->rx_desc_area_size = size; |
| 1369 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1370 | GFP_KERNEL); |
| 1371 | if (rxq->rx_skb == NULL) { |
| 1372 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1373 | "can't allocate rx skb ring\n"); |
| 1374 | goto out_free; |
| 1375 | } |
| 1376 | |
| 1377 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1378 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1379 | int nexti = (i + 1) % rxq->rx_ring_size; |
| 1380 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1381 | nexti * sizeof(struct rx_desc); |
| 1382 | } |
| 1383 | |
| 1384 | init_timer(&rxq->rx_oom); |
| 1385 | rxq->rx_oom.data = (unsigned long)rxq; |
| 1386 | rxq->rx_oom.function = rxq_refill_timer_wrapper; |
| 1387 | |
| 1388 | return 0; |
| 1389 | |
| 1390 | |
| 1391 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1392 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1393 | iounmap(rxq->rx_desc_area); |
| 1394 | else |
| 1395 | dma_free_coherent(NULL, size, |
| 1396 | rxq->rx_desc_area, |
| 1397 | rxq->rx_desc_dma); |
| 1398 | |
| 1399 | out: |
| 1400 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1401 | } |
| 1402 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1403 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1404 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1405 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1406 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1407 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1408 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1409 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1410 | del_timer_sync(&rxq->rx_oom); |
| 1411 | |
| 1412 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1413 | if (rxq->rx_skb[i]) { |
| 1414 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1415 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1416 | } |
| 1417 | } |
| 1418 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1419 | if (rxq->rx_desc_count) { |
| 1420 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1421 | "error freeing rx ring -- %d skbs stuck\n", |
| 1422 | rxq->rx_desc_count); |
| 1423 | } |
| 1424 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1425 | if (rxq->index == mp->rxq_primary && |
| 1426 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1427 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1428 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1429 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1430 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1431 | |
| 1432 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1433 | } |
| 1434 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1435 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1436 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1437 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1438 | struct tx_desc *tx_desc; |
| 1439 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1440 | int i; |
| 1441 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1442 | txq->index = index; |
| 1443 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1444 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1445 | |
| 1446 | txq->tx_desc_count = 0; |
| 1447 | txq->tx_curr_desc = 0; |
| 1448 | txq->tx_used_desc = 0; |
| 1449 | |
| 1450 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1451 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1452 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1453 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1454 | mp->tx_desc_sram_size); |
| 1455 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1456 | } else { |
| 1457 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1458 | &txq->tx_desc_dma, |
| 1459 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1460 | } |
| 1461 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1462 | if (txq->tx_desc_area == NULL) { |
| 1463 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1464 | "can't allocate tx ring (%d bytes)\n", size); |
| 1465 | goto out; |
| 1466 | } |
| 1467 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1468 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1469 | txq->tx_desc_area_size = size; |
| 1470 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1471 | GFP_KERNEL); |
| 1472 | if (txq->tx_skb == NULL) { |
| 1473 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1474 | "can't allocate tx skb ring\n"); |
| 1475 | goto out_free; |
| 1476 | } |
| 1477 | |
| 1478 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1479 | for (i = 0; i < txq->tx_ring_size; i++) { |
| 1480 | int nexti = (i + 1) % txq->tx_ring_size; |
| 1481 | tx_desc[i].next_desc_ptr = txq->tx_desc_dma + |
| 1482 | nexti * sizeof(struct tx_desc); |
| 1483 | } |
| 1484 | |
| 1485 | return 0; |
| 1486 | |
| 1487 | |
| 1488 | out_free: |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1489 | if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1490 | iounmap(txq->tx_desc_area); |
| 1491 | else |
| 1492 | dma_free_coherent(NULL, size, |
| 1493 | txq->tx_desc_area, |
| 1494 | txq->tx_desc_dma); |
| 1495 | |
| 1496 | out: |
| 1497 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1498 | } |
| 1499 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1500 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1501 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1502 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1503 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1504 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1505 | spin_lock_irqsave(&mp->lock, flags); |
| 1506 | while (txq->tx_desc_count > 0) { |
| 1507 | int tx_index; |
| 1508 | struct tx_desc *desc; |
| 1509 | u32 cmd_sts; |
| 1510 | struct sk_buff *skb; |
| 1511 | dma_addr_t addr; |
| 1512 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1513 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1514 | tx_index = txq->tx_used_desc; |
| 1515 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1516 | cmd_sts = desc->cmd_sts; |
| 1517 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1518 | if (!force && (cmd_sts & BUFFER_OWNED_BY_DMA)) |
| 1519 | break; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1520 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1521 | txq->tx_used_desc = (tx_index + 1) % txq->tx_ring_size; |
| 1522 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1523 | |
| 1524 | addr = desc->buf_ptr; |
| 1525 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1526 | skb = txq->tx_skb[tx_index]; |
| 1527 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1528 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1529 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1530 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1531 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1532 | } |
| 1533 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1534 | /* |
| 1535 | * Drop mp->lock while we free the skb. |
| 1536 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1537 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1538 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1539 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1540 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1541 | else |
| 1542 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1543 | |
| 1544 | if (skb) |
| 1545 | dev_kfree_skb_irq(skb); |
| 1546 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1547 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1548 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1549 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1550 | } |
| 1551 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1552 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1553 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1554 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1555 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1556 | txq_disable(txq); |
| 1557 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1558 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1559 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1560 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1561 | if (txq->index == mp->txq_primary && |
| 1562 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1563 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1564 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1565 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1566 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1567 | |
| 1568 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1569 | } |
| 1570 | |
| 1571 | |
| 1572 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1573 | static void update_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1574 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1575 | u32 pscr_o; |
| 1576 | u32 pscr_n; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1577 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1578 | pscr_o = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1579 | |
| 1580 | /* clear speed, duplex and rx buffer size fields */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1581 | pscr_n = pscr_o & ~(SET_MII_SPEED_TO_100 | |
| 1582 | SET_GMII_SPEED_TO_1000 | |
| 1583 | SET_FULL_DUPLEX_MODE | |
| 1584 | MAX_RX_PACKET_MASK); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1585 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1586 | if (speed == SPEED_1000) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1587 | pscr_n |= SET_GMII_SPEED_TO_1000 | MAX_RX_PACKET_9700BYTE; |
| 1588 | } else { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1589 | if (speed == SPEED_100) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1590 | pscr_n |= SET_MII_SPEED_TO_100; |
| 1591 | pscr_n |= MAX_RX_PACKET_1522BYTE; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1592 | } |
| 1593 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1594 | if (duplex == DUPLEX_FULL) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1595 | pscr_n |= SET_FULL_DUPLEX_MODE; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1596 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1597 | if (pscr_n != pscr_o) { |
| 1598 | if ((pscr_o & SERIAL_PORT_ENABLE) == 0) |
| 1599 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
| 1600 | else { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1601 | int i; |
| 1602 | |
| 1603 | for (i = 0; i < 8; i++) |
| 1604 | if (mp->txq_mask & (1 << i)) |
| 1605 | txq_disable(mp->txq + i); |
| 1606 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1607 | pscr_o &= ~SERIAL_PORT_ENABLE; |
| 1608 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_o); |
| 1609 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
| 1610 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1611 | |
| 1612 | for (i = 0; i < 8; i++) |
| 1613 | if (mp->txq_mask & (1 << i)) |
| 1614 | txq_enable(mp->txq + i); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1615 | } |
| 1616 | } |
| 1617 | } |
| 1618 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1619 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1620 | { |
| 1621 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1622 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1623 | u32 int_cause; |
| 1624 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1625 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1626 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & (INT_RX | INT_EXT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1627 | if (int_cause == 0) |
| 1628 | return IRQ_NONE; |
| 1629 | |
| 1630 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1631 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1632 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1633 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1634 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1635 | } |
| 1636 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1637 | if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1638 | if (mii_link_ok(&mp->mii)) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1639 | struct ethtool_cmd cmd; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1640 | int i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1641 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1642 | mii_ethtool_gset(&mp->mii, &cmd); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1643 | update_pscr(mp, cmd.speed, cmd.duplex); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1644 | for (i = 0; i < 8; i++) |
| 1645 | if (mp->txq_mask & (1 << i)) |
| 1646 | txq_enable(mp->txq + i); |
| 1647 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1648 | if (!netif_carrier_ok(dev)) { |
| 1649 | netif_carrier_on(dev); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1650 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1651 | } |
| 1652 | } else if (netif_carrier_ok(dev)) { |
| 1653 | netif_stop_queue(dev); |
| 1654 | netif_carrier_off(dev); |
| 1655 | } |
| 1656 | } |
| 1657 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1658 | /* |
| 1659 | * RxBuffer or RxError set for any of the 8 queues? |
| 1660 | */ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1661 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1662 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1663 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1664 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1665 | |
| 1666 | netif_rx_schedule(dev, &mp->napi); |
| 1667 | } |
| 1668 | #else |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1669 | if (int_cause & INT_RX) { |
| 1670 | int i; |
| 1671 | |
| 1672 | for (i = 7; i >= 0; i--) |
| 1673 | if (mp->rxq_mask & (1 << i)) |
| 1674 | rxq_process(mp->rxq + i, INT_MAX); |
| 1675 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1676 | #endif |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1677 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1678 | /* |
| 1679 | * TxBuffer or TxError set for any of the 8 queues? |
| 1680 | */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1681 | if (int_cause_ext & INT_EXT_TX) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1682 | int i; |
| 1683 | |
| 1684 | for (i = 0; i < 8; i++) |
| 1685 | if (mp->txq_mask & (1 << i)) |
| 1686 | txq_reclaim(mp->txq + i, 0); |
| 1687 | |
| 1688 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1689 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1690 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1691 | return IRQ_HANDLED; |
| 1692 | } |
| 1693 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1694 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1695 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1696 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1697 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1698 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 1699 | data |= 0x8000; |
| 1700 | smi_reg_write(mp, mp->phy_addr, 0, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1701 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1702 | do { |
| 1703 | udelay(1); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1704 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 1705 | } while (data & 0x8000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1706 | } |
| 1707 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1708 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1709 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1710 | u32 pscr; |
| 1711 | struct ethtool_cmd ethtool_cmd; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1712 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1713 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1714 | /* |
| 1715 | * Configure basic link parameters. |
| 1716 | */ |
| 1717 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1718 | pscr &= ~(SERIAL_PORT_ENABLE | FORCE_LINK_PASS); |
| 1719 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1720 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL | |
| 1721 | DISABLE_AUTO_NEG_SPEED_GMII | |
| 1722 | DISABLE_AUTO_NEG_FOR_DUPLEX | |
| 1723 | DO_NOT_FORCE_LINK_FAIL | |
| 1724 | SERIAL_PORT_CONTROL_RESERVED; |
| 1725 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1726 | pscr |= SERIAL_PORT_ENABLE; |
| 1727 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1728 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1729 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1730 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1731 | mv643xx_eth_get_settings(mp->dev, ðtool_cmd); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1732 | phy_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1733 | mv643xx_eth_set_settings(mp->dev, ðtool_cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1734 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1735 | /* |
| 1736 | * Configure TX path and queues. |
| 1737 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1738 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1739 | for (i = 0; i < 8; i++) { |
| 1740 | struct tx_queue *txq = mp->txq + i; |
| 1741 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1742 | u32 addr; |
| 1743 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1744 | if ((mp->txq_mask & (1 << i)) == 0) |
| 1745 | continue; |
| 1746 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1747 | addr = (u32)txq->tx_desc_dma; |
| 1748 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1749 | wrl(mp, off, addr); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1750 | |
| 1751 | txq_set_rate(txq, 1000000000, 16777216); |
| 1752 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1753 | } |
| 1754 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1755 | /* |
| 1756 | * Add configured unicast address to address filter table. |
| 1757 | */ |
| 1758 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1759 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1760 | /* |
| 1761 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1762 | * frames to RX queue #0. |
| 1763 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1764 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1765 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1766 | /* |
| 1767 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1768 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1769 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1770 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1771 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1772 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1773 | */ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1774 | for (i = 0; i < 8; i++) { |
| 1775 | struct rx_queue *rxq = mp->rxq + i; |
| 1776 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1777 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1778 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1779 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1780 | continue; |
| 1781 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1782 | addr = (u32)rxq->rx_desc_dma; |
| 1783 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1784 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1785 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1786 | rxq_enable(rxq); |
| 1787 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1788 | } |
| 1789 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1790 | static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1791 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1792 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1793 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1794 | if (coal > 0x3fff) |
| 1795 | coal = 0x3fff; |
| 1796 | |
| 1797 | wrl(mp, SDMA_CONFIG(mp->port_num), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1798 | ((coal & 0x3fff) << 8) | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1799 | (rdl(mp, SDMA_CONFIG(mp->port_num)) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1800 | & 0xffc000ff)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1801 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1802 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1803 | static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1804 | { |
| 1805 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1806 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1807 | if (coal > 0x3fff) |
| 1808 | coal = 0x3fff; |
| 1809 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1810 | } |
| 1811 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1812 | static int mv643xx_eth_open(struct net_device *dev) |
| 1813 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1814 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1815 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1816 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1817 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1818 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 1819 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 1820 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1821 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1822 | err = request_irq(dev->irq, mv643xx_eth_irq, |
| 1823 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, |
| 1824 | dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1825 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1826 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1827 | return -EAGAIN; |
| 1828 | } |
| 1829 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1830 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1831 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1832 | for (i = 0; i < 8; i++) { |
| 1833 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1834 | continue; |
| 1835 | |
| 1836 | err = rxq_init(mp, i); |
| 1837 | if (err) { |
| 1838 | while (--i >= 0) |
| 1839 | if (mp->rxq_mask & (1 << i)) |
| 1840 | rxq_deinit(mp->rxq + i); |
| 1841 | goto out; |
| 1842 | } |
| 1843 | |
| 1844 | rxq_refill(mp->rxq + i); |
| 1845 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1846 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1847 | for (i = 0; i < 8; i++) { |
| 1848 | if ((mp->txq_mask & (1 << i)) == 0) |
| 1849 | continue; |
| 1850 | |
| 1851 | err = txq_init(mp, i); |
| 1852 | if (err) { |
| 1853 | while (--i >= 0) |
| 1854 | if (mp->txq_mask & (1 << i)) |
| 1855 | txq_deinit(mp->txq + i); |
| 1856 | goto out_free; |
| 1857 | } |
| 1858 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1859 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1860 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1861 | napi_enable(&mp->napi); |
| 1862 | #endif |
| 1863 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1864 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1865 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1866 | set_rx_coal(mp, 0); |
| 1867 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1868 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1869 | wrl(mp, INT_MASK_EXT(mp->port_num), |
| 1870 | INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1871 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1872 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1873 | |
| 1874 | return 0; |
| 1875 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1876 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1877 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1878 | for (i = 0; i < 8; i++) |
| 1879 | if (mp->rxq_mask & (1 << i)) |
| 1880 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1881 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 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 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1889 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1890 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1891 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1892 | for (i = 0; i < 8; i++) { |
| 1893 | if (mp->rxq_mask & (1 << i)) |
| 1894 | rxq_disable(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1895 | if (mp->txq_mask & (1 << i)) |
| 1896 | txq_disable(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1897 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1898 | while (!(rdl(mp, PORT_STATUS(mp->port_num)) & TX_FIFO_EMPTY)) |
| 1899 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1900 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1901 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1902 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1903 | data &= ~(SERIAL_PORT_ENABLE | |
| 1904 | DO_NOT_FORCE_LINK_FAIL | |
| 1905 | FORCE_LINK_PASS); |
| 1906 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1907 | } |
| 1908 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1909 | static int mv643xx_eth_stop(struct net_device *dev) |
| 1910 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1911 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1912 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1913 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1914 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 1915 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1916 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1917 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1918 | napi_disable(&mp->napi); |
| 1919 | #endif |
| 1920 | netif_carrier_off(dev); |
| 1921 | netif_stop_queue(dev); |
| 1922 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1923 | free_irq(dev->irq, dev); |
| 1924 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1925 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1926 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1927 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1928 | for (i = 0; i < 8; i++) { |
| 1929 | if (mp->rxq_mask & (1 << i)) |
| 1930 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1931 | if (mp->txq_mask & (1 << i)) |
| 1932 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1933 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1934 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1935 | return 0; |
| 1936 | } |
| 1937 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1938 | static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1939 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1940 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1941 | |
| 1942 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 1943 | } |
| 1944 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1945 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 1946 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1947 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1948 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1949 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1950 | return -EINVAL; |
| 1951 | |
| 1952 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1953 | tx_set_rate(mp, 1000000000, 16777216); |
| 1954 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1955 | if (!netif_running(dev)) |
| 1956 | return 0; |
| 1957 | |
| 1958 | /* |
| 1959 | * Stop and then re-open the interface. This will allocate RX |
| 1960 | * skbs of the new MTU. |
| 1961 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1962 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1963 | */ |
| 1964 | mv643xx_eth_stop(dev); |
| 1965 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1966 | dev_printk(KERN_ERR, &dev->dev, |
| 1967 | "fatal error on re-opening device after " |
| 1968 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1969 | } |
| 1970 | |
| 1971 | return 0; |
| 1972 | } |
| 1973 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1974 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1975 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1976 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1977 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1978 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 1979 | if (netif_running(mp->dev)) { |
| 1980 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1981 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1982 | port_reset(mp); |
| 1983 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1984 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 1985 | __txq_maybe_wake(mp->txq + mp->txq_primary); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1986 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1987 | } |
| 1988 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1989 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 1990 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1991 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1992 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1993 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1994 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1995 | schedule_work(&mp->tx_timeout_task); |
| 1996 | } |
| 1997 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1998 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1999 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2000 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2001 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2002 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2003 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 2004 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2005 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2006 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2007 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2008 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_CAUSE_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2009 | } |
| 2010 | #endif |
| 2011 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2012 | static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2013 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2014 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2015 | int val; |
| 2016 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2017 | smi_reg_read(mp, addr, reg, &val); |
| 2018 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2019 | return val; |
| 2020 | } |
| 2021 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2022 | static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2023 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2024 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2025 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2026 | } |
| 2027 | |
| 2028 | |
| 2029 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2030 | static void |
| 2031 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 2032 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2033 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2034 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2035 | u32 win_enable; |
| 2036 | u32 win_protect; |
| 2037 | int i; |
| 2038 | |
| 2039 | for (i = 0; i < 6; i++) { |
| 2040 | writel(0, base + WINDOW_BASE(i)); |
| 2041 | writel(0, base + WINDOW_SIZE(i)); |
| 2042 | if (i < 4) |
| 2043 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2044 | } |
| 2045 | |
| 2046 | win_enable = 0x3f; |
| 2047 | win_protect = 0; |
| 2048 | |
| 2049 | for (i = 0; i < dram->num_cs; i++) { |
| 2050 | struct mbus_dram_window *cs = dram->cs + i; |
| 2051 | |
| 2052 | writel((cs->base & 0xffff0000) | |
| 2053 | (cs->mbus_attr << 8) | |
| 2054 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2055 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2056 | |
| 2057 | win_enable &= ~(1 << i); |
| 2058 | win_protect |= 3 << (2 * i); |
| 2059 | } |
| 2060 | |
| 2061 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2062 | msp->win_protect = win_protect; |
| 2063 | } |
| 2064 | |
| 2065 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2066 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2067 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2068 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2069 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2070 | struct resource *res; |
| 2071 | int ret; |
| 2072 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2073 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2074 | printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); |
| 2075 | |
| 2076 | ret = -EINVAL; |
| 2077 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2078 | if (res == NULL) |
| 2079 | goto out; |
| 2080 | |
| 2081 | ret = -ENOMEM; |
| 2082 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2083 | if (msp == NULL) |
| 2084 | goto out; |
| 2085 | memset(msp, 0, sizeof(*msp)); |
| 2086 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2087 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2088 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2089 | goto out_free; |
| 2090 | |
| 2091 | spin_lock_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2092 | |
| 2093 | /* |
| 2094 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2095 | */ |
| 2096 | if (pd != NULL && pd->dram != NULL) |
| 2097 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2098 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2099 | /* |
| 2100 | * Detect hardware parameters. |
| 2101 | */ |
| 2102 | msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; |
| 2103 | |
| 2104 | platform_set_drvdata(pdev, msp); |
| 2105 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2106 | return 0; |
| 2107 | |
| 2108 | out_free: |
| 2109 | kfree(msp); |
| 2110 | out: |
| 2111 | return ret; |
| 2112 | } |
| 2113 | |
| 2114 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2115 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2116 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2117 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2118 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2119 | kfree(msp); |
| 2120 | |
| 2121 | return 0; |
| 2122 | } |
| 2123 | |
| 2124 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2125 | .probe = mv643xx_eth_shared_probe, |
| 2126 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2127 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2128 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2129 | .owner = THIS_MODULE, |
| 2130 | }, |
| 2131 | }; |
| 2132 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2133 | 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] | 2134 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2135 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2136 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2137 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2138 | data = rdl(mp, PHY_ADDR); |
| 2139 | data &= ~(0x1f << addr_shift); |
| 2140 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2141 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2142 | } |
| 2143 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2144 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2145 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2146 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2147 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2148 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2149 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2150 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2151 | } |
| 2152 | |
| 2153 | static void set_params(struct mv643xx_eth_private *mp, |
| 2154 | struct mv643xx_eth_platform_data *pd) |
| 2155 | { |
| 2156 | struct net_device *dev = mp->dev; |
| 2157 | |
| 2158 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2159 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2160 | else |
| 2161 | uc_addr_get(mp, dev->dev_addr); |
| 2162 | |
| 2163 | if (pd->phy_addr == -1) { |
| 2164 | mp->shared_smi = NULL; |
| 2165 | mp->phy_addr = -1; |
| 2166 | } else { |
| 2167 | mp->shared_smi = mp->shared; |
| 2168 | if (pd->shared_smi != NULL) |
| 2169 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2170 | |
| 2171 | if (pd->force_phy_addr || pd->phy_addr) { |
| 2172 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2173 | phy_addr_set(mp, mp->phy_addr); |
| 2174 | } else { |
| 2175 | mp->phy_addr = phy_addr_get(mp); |
| 2176 | } |
| 2177 | } |
| 2178 | |
| 2179 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2180 | if (pd->rx_queue_size) |
| 2181 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2182 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2183 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2184 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2185 | if (pd->rx_queue_mask) |
| 2186 | mp->rxq_mask = pd->rx_queue_mask; |
| 2187 | else |
| 2188 | mp->rxq_mask = 0x01; |
| 2189 | mp->rxq_primary = fls(mp->rxq_mask) - 1; |
| 2190 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2191 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2192 | if (pd->tx_queue_size) |
| 2193 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2194 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2195 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame^] | 2196 | |
| 2197 | if (pd->tx_queue_mask) |
| 2198 | mp->txq_mask = pd->tx_queue_mask; |
| 2199 | else |
| 2200 | mp->txq_mask = 0x01; |
| 2201 | mp->txq_primary = fls(mp->txq_mask) - 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2202 | } |
| 2203 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2204 | static int phy_detect(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2205 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2206 | unsigned int data; |
| 2207 | unsigned int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2208 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2209 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 2210 | smi_reg_write(mp, mp->phy_addr, 0, data ^ 0x1000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2211 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2212 | smi_reg_read(mp, mp->phy_addr, 0, &data2); |
| 2213 | if (((data ^ data2) & 0x1000) == 0) |
| 2214 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2215 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2216 | smi_reg_write(mp, mp->phy_addr, 0, data); |
| 2217 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2218 | return 0; |
| 2219 | } |
| 2220 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2221 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2222 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2223 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2224 | struct ethtool_cmd cmd; |
| 2225 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2226 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2227 | err = phy_detect(mp); |
| 2228 | if (err) { |
| 2229 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2230 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2231 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2232 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2233 | phy_reset(mp); |
| 2234 | |
| 2235 | mp->mii.phy_id = mp->phy_addr; |
| 2236 | mp->mii.phy_id_mask = 0x3f; |
| 2237 | mp->mii.reg_num_mask = 0x1f; |
| 2238 | mp->mii.dev = mp->dev; |
| 2239 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2240 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2241 | |
| 2242 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2243 | |
| 2244 | memset(&cmd, 0, sizeof(cmd)); |
| 2245 | |
| 2246 | cmd.port = PORT_MII; |
| 2247 | cmd.transceiver = XCVR_INTERNAL; |
| 2248 | cmd.phy_address = mp->phy_addr; |
| 2249 | if (pd->speed == 0) { |
| 2250 | cmd.autoneg = AUTONEG_ENABLE; |
| 2251 | cmd.speed = SPEED_100; |
| 2252 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2253 | ADVERTISED_10baseT_Full | |
| 2254 | ADVERTISED_100baseT_Half | |
| 2255 | ADVERTISED_100baseT_Full; |
| 2256 | if (mp->mii.supports_gmii) |
| 2257 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2258 | } else { |
| 2259 | cmd.autoneg = AUTONEG_DISABLE; |
| 2260 | cmd.speed = pd->speed; |
| 2261 | cmd.duplex = pd->duplex; |
| 2262 | } |
| 2263 | |
| 2264 | update_pscr(mp, cmd.speed, cmd.duplex); |
| 2265 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2266 | |
| 2267 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2268 | } |
| 2269 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2270 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2272 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2273 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2276 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2277 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2278 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2279 | pd = pdev->dev.platform_data; |
| 2280 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2281 | dev_printk(KERN_ERR, &pdev->dev, |
| 2282 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2283 | return -ENODEV; |
| 2284 | } |
| 2285 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2286 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2287 | dev_printk(KERN_ERR, &pdev->dev, |
| 2288 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2289 | return -ENODEV; |
| 2290 | } |
| 2291 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2292 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2293 | if (!dev) |
| 2294 | return -ENOMEM; |
| 2295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2297 | platform_set_drvdata(pdev, mp); |
| 2298 | |
| 2299 | mp->shared = platform_get_drvdata(pd->shared); |
| 2300 | mp->port_num = pd->port_number; |
| 2301 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2302 | mp->dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2303 | #ifdef MV643XX_ETH_NAPI |
| 2304 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2305 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2306 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2307 | set_params(mp, pd); |
| 2308 | |
| 2309 | spin_lock_init(&mp->lock); |
| 2310 | |
| 2311 | mib_counters_clear(mp); |
| 2312 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2313 | |
| 2314 | err = phy_init(mp, pd); |
| 2315 | if (err) |
| 2316 | goto out; |
| 2317 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2318 | |
| 2319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2320 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2321 | BUG_ON(!res); |
| 2322 | dev->irq = res->start; |
| 2323 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2324 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2325 | dev->open = mv643xx_eth_open; |
| 2326 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2327 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2328 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2329 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2330 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2331 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2332 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2333 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2334 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2335 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2336 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2337 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2338 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2339 | /* |
| 2340 | * Zero copy can only work if we use Discovery II memory. Else, we will |
| 2341 | * have to map the buffers to ISA memory which is only 16 MB |
| 2342 | */ |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2343 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2344 | #endif |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2345 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2346 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2347 | |
| 2348 | if (mp->shared->win_protect) |
| 2349 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2350 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2351 | err = register_netdev(dev); |
| 2352 | if (err) |
| 2353 | goto out; |
| 2354 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2355 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2356 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2357 | |
| 2358 | if (dev->features & NETIF_F_SG) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2359 | dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | |
| 2361 | if (dev->features & NETIF_F_IP_CSUM) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2362 | dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2364 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2365 | dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2366 | #endif |
| 2367 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2368 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2369 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2371 | return 0; |
| 2372 | |
| 2373 | out: |
| 2374 | free_netdev(dev); |
| 2375 | |
| 2376 | return err; |
| 2377 | } |
| 2378 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2379 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2381 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2383 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2385 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2387 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2388 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | return 0; |
| 2390 | } |
| 2391 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2392 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2393 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2394 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2395 | |
| 2396 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2397 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2398 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2399 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2400 | if (netif_running(mp->dev)) |
| 2401 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2402 | } |
| 2403 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2404 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2405 | .probe = mv643xx_eth_probe, |
| 2406 | .remove = mv643xx_eth_remove, |
| 2407 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2408 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2409 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2410 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2411 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | }; |
| 2413 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2414 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2415 | { |
| 2416 | int rc; |
| 2417 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2418 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2419 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2420 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2422 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2424 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2425 | return rc; |
| 2426 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2427 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2428 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2429 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2430 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2431 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2432 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2433 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2434 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2435 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2436 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani " |
| 2437 | "and Dale Farnsworth"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2438 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2439 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2440 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2441 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |