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 |
| 106 | #define INT_EXT_TX 0x00000101 |
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)) |
| 112 | #define TXQ_CURRENT_DESC_PTR(p) (0x06c0 + ((p) << 10)) |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 113 | #define TXQ_BW_TOKENS(p) (0x0700 + ((p) << 10)) |
| 114 | #define TXQ_BW_CONF(p) (0x0704 + ((p) << 10)) |
| 115 | #define TXQ_BW_WRR_CONF(p) (0x0708 + ((p) << 10)) |
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 { |
| 306 | int tx_ring_size; |
| 307 | |
| 308 | int tx_desc_count; |
| 309 | int tx_curr_desc; |
| 310 | int tx_used_desc; |
| 311 | |
| 312 | struct tx_desc *tx_desc_area; |
| 313 | dma_addr_t tx_desc_dma; |
| 314 | int tx_desc_area_size; |
| 315 | struct sk_buff **tx_skb; |
| 316 | }; |
| 317 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 318 | struct mv643xx_eth_private { |
| 319 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 320 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 321 | |
| 322 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 323 | |
| 324 | struct mv643xx_eth_shared_private *shared_smi; |
| 325 | int phy_addr; |
| 326 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 327 | spinlock_t lock; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 328 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 329 | struct mib_counters mib_counters; |
| 330 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 331 | struct mii_if_info mii; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 332 | |
| 333 | /* |
| 334 | * RX state. |
| 335 | */ |
| 336 | int default_rx_ring_size; |
| 337 | unsigned long rx_desc_sram_addr; |
| 338 | int rx_desc_sram_size; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 339 | u8 rxq_mask; |
| 340 | int rxq_primary; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 341 | struct napi_struct napi; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 342 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 343 | |
| 344 | /* |
| 345 | * TX state. |
| 346 | */ |
| 347 | int default_tx_ring_size; |
| 348 | unsigned long tx_desc_sram_addr; |
| 349 | int tx_desc_sram_size; |
| 350 | struct tx_queue txq[1]; |
| 351 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
| 352 | int tx_clean_threshold; |
| 353 | #endif |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 354 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 356 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 357 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 358 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 360 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | } |
| 362 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 363 | 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] | 364 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 365 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 368 | |
| 369 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 370 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 372 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 373 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 375 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 376 | { |
| 377 | return container_of(txq, struct mv643xx_eth_private, txq[0]); |
| 378 | } |
| 379 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 380 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 381 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 382 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 383 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 384 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 385 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 386 | static void rxq_disable(struct rx_queue *rxq) |
| 387 | { |
| 388 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 389 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 390 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 391 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
| 392 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) |
| 393 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 394 | } |
| 395 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 396 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 397 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 398 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 399 | wrl(mp, TXQ_COMMAND(mp->port_num), 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 400 | } |
| 401 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 402 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 403 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 404 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 405 | u8 mask = 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 406 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 407 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
| 408 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) |
| 409 | udelay(10); |
| 410 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 411 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 412 | static void __txq_maybe_wake(struct tx_queue *txq) |
| 413 | { |
| 414 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
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 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB) |
| 417 | netif_wake_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | |
| 421 | /* rx ***********************************************************************/ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 422 | static void txq_reclaim(struct tx_queue *txq, int force); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 423 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 424 | static void rxq_refill(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 425 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 426 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 427 | unsigned long flags; |
| 428 | |
| 429 | spin_lock_irqsave(&mp->lock, flags); |
| 430 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 431 | while (rxq->rx_desc_count < rxq->rx_ring_size) { |
| 432 | int skb_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 433 | struct sk_buff *skb; |
| 434 | int unaligned; |
| 435 | int rx; |
| 436 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 437 | /* |
| 438 | * Reserve 2+14 bytes for an ethernet header (the |
| 439 | * hardware automatically prepends 2 bytes of dummy |
| 440 | * data to each received packet), 4 bytes for a VLAN |
| 441 | * header, and 4 bytes for the trailing FCS -- 24 |
| 442 | * bytes total. |
| 443 | */ |
| 444 | skb_size = mp->dev->mtu + 24; |
| 445 | |
| 446 | skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 447 | if (skb == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | break; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 449 | |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 450 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
Dale Farnsworth | b44cd57 | 2006-01-16 16:51:22 -0700 | [diff] [blame] | 451 | if (unaligned) |
Ralf Baechle | 908b637 | 2007-02-26 19:52:06 +0000 | [diff] [blame] | 452 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 453 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 454 | rxq->rx_desc_count++; |
| 455 | rx = rxq->rx_used_desc; |
| 456 | rxq->rx_used_desc = (rx + 1) % rxq->rx_ring_size; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 457 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 458 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
| 459 | skb_size, DMA_FROM_DEVICE); |
| 460 | rxq->rx_desc_area[rx].buf_size = skb_size; |
| 461 | rxq->rx_skb[rx] = skb; |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 462 | wmb(); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 463 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 464 | RX_ENABLE_INTERRUPT; |
| 465 | wmb(); |
| 466 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 467 | /* |
| 468 | * The hardware automatically prepends 2 bytes of |
| 469 | * dummy data to each received packet, so that the |
| 470 | * IP header ends up 16-byte aligned. |
| 471 | */ |
| 472 | skb_reserve(skb, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 474 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 475 | if (rxq->rx_desc_count == 0) { |
| 476 | rxq->rx_oom.expires = jiffies + (HZ / 10); |
| 477 | add_timer(&rxq->rx_oom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | } |
Lennert Buytenhek | de34f22 | 2008-06-01 10:07:49 +0200 | [diff] [blame] | 479 | |
| 480 | spin_unlock_irqrestore(&mp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | } |
| 482 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 483 | static inline void rxq_refill_timer_wrapper(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 485 | rxq_refill((struct rx_queue *)data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 488 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 490 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 491 | struct net_device_stats *stats = &mp->dev->stats; |
| 492 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 494 | rx = 0; |
| 495 | while (rx < budget) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 496 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 497 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 498 | struct sk_buff *skb; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 499 | unsigned long flags; |
| 500 | |
| 501 | spin_lock_irqsave(&mp->lock, flags); |
| 502 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 503 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 504 | |
| 505 | cmd_sts = rx_desc->cmd_sts; |
| 506 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 507 | spin_unlock_irqrestore(&mp->lock, flags); |
| 508 | break; |
| 509 | } |
| 510 | rmb(); |
| 511 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 512 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 513 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 514 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 515 | 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] | 516 | |
| 517 | spin_unlock_irqrestore(&mp->lock, flags); |
| 518 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 519 | dma_unmap_single(NULL, rx_desc->buf_ptr + 2, |
| 520 | mp->dev->mtu + 24, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 521 | rxq->rx_desc_count--; |
| 522 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 523 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 524 | /* |
| 525 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 526 | * |
| 527 | * Note that the descriptor byte count includes 2 dummy |
| 528 | * bytes automatically inserted by the hardware at the |
| 529 | * start of the packet (which we don't count), and a 4 |
| 530 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 531 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | stats->rx_packets++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 533 | stats->rx_bytes += rx_desc->byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 534 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 536 | * In case we received a packet without first / last bits |
| 537 | * on, or the error summary bit is set, the packet needs |
| 538 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | */ |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 540 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 541 | (RX_FIRST_DESC | RX_LAST_DESC)) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 542 | || (cmd_sts & ERROR_SUMMARY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | stats->rx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 544 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 545 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 546 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | if (net_ratelimit()) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 548 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 549 | "received packet spanning " |
| 550 | "multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 552 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 553 | if (cmd_sts & ERROR_SUMMARY) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | stats->rx_errors++; |
| 555 | |
| 556 | dev_kfree_skb_irq(skb); |
| 557 | } else { |
| 558 | /* |
| 559 | * The -4 is for the CRC in the trailer of the |
| 560 | * received packet |
| 561 | */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 562 | skb_put(skb, rx_desc->byte_cnt - 2 - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 564 | if (cmd_sts & LAYER_4_CHECKSUM_OK) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 566 | skb->csum = htons( |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 567 | (cmd_sts & 0x0007fff8) >> 3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 569 | skb->protocol = eth_type_trans(skb, mp->dev); |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 570 | #ifdef MV643XX_ETH_NAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | netif_receive_skb(skb); |
| 572 | #else |
| 573 | netif_rx(skb); |
| 574 | #endif |
| 575 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 576 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 577 | mp->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 579 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 580 | rxq_refill(rxq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 582 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | } |
| 584 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 585 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 586 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 588 | struct mv643xx_eth_private *mp; |
| 589 | int rx; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 590 | int i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 591 | |
| 592 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 594 | #ifdef MV643XX_ETH_TX_FAST_REFILL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | if (++mp->tx_clean_threshold > 5) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 596 | txq_reclaim(mp->txq, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | mp->tx_clean_threshold = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | } |
| 599 | #endif |
| 600 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 601 | rx = 0; |
| 602 | for (i = 7; rx < budget && i >= 0; i--) |
| 603 | if (mp->rxq_mask & (1 << i)) |
| 604 | rx += rxq_process(mp->rxq + i, budget - rx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 606 | if (rx < budget) { |
| 607 | netif_rx_complete(mp->dev, napi); |
| 608 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 609 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 610 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_EXT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 613 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | } |
| 615 | #endif |
| 616 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 617 | |
| 618 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 619 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 620 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 621 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 622 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 623 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 624 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 625 | if (fragp->size <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 626 | return 1; |
| 627 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 628 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 629 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 630 | } |
| 631 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 632 | static int txq_alloc_desc_index(struct tx_queue *txq) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 633 | { |
| 634 | int tx_desc_curr; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 635 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 636 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 637 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 638 | tx_desc_curr = txq->tx_curr_desc; |
| 639 | txq->tx_curr_desc = (tx_desc_curr + 1) % txq->tx_ring_size; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 640 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 641 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 642 | |
| 643 | return tx_desc_curr; |
| 644 | } |
| 645 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 646 | 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] | 647 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 648 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 649 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 650 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 651 | for (frag = 0; frag < nr_frags; frag++) { |
| 652 | skb_frag_t *this_frag; |
| 653 | int tx_index; |
| 654 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 655 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 656 | this_frag = &skb_shinfo(skb)->frags[frag]; |
| 657 | tx_index = txq_alloc_desc_index(txq); |
| 658 | desc = &txq->tx_desc_area[tx_index]; |
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 | /* |
| 661 | * The last fragment will generate an interrupt |
| 662 | * which will free the skb on TX completion. |
| 663 | */ |
| 664 | if (frag == nr_frags - 1) { |
| 665 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 666 | ZERO_PADDING | TX_LAST_DESC | |
| 667 | TX_ENABLE_INTERRUPT; |
| 668 | txq->tx_skb[tx_index] = skb; |
| 669 | } else { |
| 670 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
| 671 | txq->tx_skb[tx_index] = NULL; |
| 672 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 673 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 674 | desc->l4i_chk = 0; |
| 675 | desc->byte_cnt = this_frag->size; |
| 676 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, |
| 677 | this_frag->page_offset, |
| 678 | this_frag->size, |
| 679 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 680 | } |
| 681 | } |
| 682 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 683 | static inline __be16 sum16_as_be(__sum16 sum) |
| 684 | { |
| 685 | return (__force __be16)sum; |
| 686 | } |
| 687 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 688 | 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] | 689 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 690 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 691 | int tx_index; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 692 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 693 | u32 cmd_sts; |
| 694 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 695 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 696 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 697 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 698 | tx_index = txq_alloc_desc_index(txq); |
| 699 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 700 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 701 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 702 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 703 | |
| 704 | length = skb_headlen(skb); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 705 | txq->tx_skb[tx_index] = NULL; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 706 | } else { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 707 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 708 | length = skb->len; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 709 | txq->tx_skb[tx_index] = skb; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 710 | } |
| 711 | |
| 712 | desc->byte_cnt = length; |
| 713 | 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] | 714 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 715 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 716 | BUG_ON(skb->protocol != htons(ETH_P_IP)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 717 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 718 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 719 | GEN_IP_V4_CHECKSUM | |
| 720 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 721 | |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 722 | switch (ip_hdr(skb)->protocol) { |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 723 | case IPPROTO_UDP: |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 724 | cmd_sts |= UDP_FRAME; |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 725 | desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 726 | break; |
| 727 | case IPPROTO_TCP: |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 728 | desc->l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 729 | break; |
| 730 | default: |
| 731 | BUG(); |
| 732 | } |
| 733 | } else { |
| 734 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 735 | cmd_sts |= 5 << TX_IHL_SHIFT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 736 | desc->l4i_chk = 0; |
| 737 | } |
| 738 | |
| 739 | /* ensure all other descriptors are written before first cmd_sts */ |
| 740 | wmb(); |
| 741 | desc->cmd_sts = cmd_sts; |
| 742 | |
| 743 | /* ensure all descriptors are written before poking hardware */ |
| 744 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 745 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 746 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 747 | txq->tx_desc_count += nr_frags + 1; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 748 | } |
| 749 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 750 | 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] | 751 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 752 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 753 | struct net_device_stats *stats = &dev->stats; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 754 | struct tx_queue *txq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 757 | BUG_ON(netif_queue_stopped(dev)); |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 758 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 759 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
| 760 | stats->tx_dropped++; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 761 | dev_printk(KERN_DEBUG, &dev->dev, |
| 762 | "failed to linearize skb with tiny " |
| 763 | "unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 764 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 765 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | spin_lock_irqsave(&mp->lock, flags); |
| 768 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 769 | txq = mp->txq; |
| 770 | |
| 771 | 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] | 772 | printk(KERN_ERR "%s: transmit with queue full\n", dev->name); |
| 773 | netif_stop_queue(dev); |
| 774 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 775 | return NETDEV_TX_BUSY; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 776 | } |
| 777 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 778 | txq_submit_skb(txq, skb); |
Dale Farnsworth | e7e381f | 2007-09-14 11:23:16 -0700 | [diff] [blame] | 779 | stats->tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | stats->tx_packets++; |
| 781 | dev->trans_start = jiffies; |
| 782 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 783 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 784 | netif_stop_queue(dev); |
| 785 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | spin_unlock_irqrestore(&mp->lock, flags); |
| 787 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 788 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | } |
| 790 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 791 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 792 | /* tx rate control **********************************************************/ |
| 793 | /* |
| 794 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 795 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 796 | */ |
| 797 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 798 | { |
| 799 | int token_rate; |
| 800 | int mtu; |
| 801 | int bucket_size; |
| 802 | |
| 803 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 804 | if (token_rate > 1023) |
| 805 | token_rate = 1023; |
| 806 | |
| 807 | mtu = (mp->dev->mtu + 255) >> 8; |
| 808 | if (mtu > 63) |
| 809 | mtu = 63; |
| 810 | |
| 811 | bucket_size = (burst + 255) >> 8; |
| 812 | if (bucket_size > 65535) |
| 813 | bucket_size = 65535; |
| 814 | |
| 815 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
| 816 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); |
| 817 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); |
| 818 | } |
| 819 | |
| 820 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 821 | { |
| 822 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 823 | int token_rate; |
| 824 | int bucket_size; |
| 825 | |
| 826 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); |
| 827 | if (token_rate > 1023) |
| 828 | token_rate = 1023; |
| 829 | |
| 830 | bucket_size = (burst + 255) >> 8; |
| 831 | if (bucket_size > 65535) |
| 832 | bucket_size = 65535; |
| 833 | |
| 834 | wrl(mp, TXQ_BW_TOKENS(mp->port_num), token_rate << 14); |
| 835 | wrl(mp, TXQ_BW_CONF(mp->port_num), |
| 836 | (bucket_size << 10) | token_rate); |
| 837 | } |
| 838 | |
| 839 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 840 | { |
| 841 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 842 | int off; |
| 843 | u32 val; |
| 844 | |
| 845 | /* |
| 846 | * Turn on fixed priority mode. |
| 847 | */ |
| 848 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
| 849 | |
| 850 | val = rdl(mp, off); |
| 851 | val |= 1; |
| 852 | wrl(mp, off, val); |
| 853 | } |
| 854 | |
| 855 | static void txq_set_wrr(struct tx_queue *txq, int weight) |
| 856 | { |
| 857 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 858 | int off; |
| 859 | u32 val; |
| 860 | |
| 861 | /* |
| 862 | * Turn off fixed priority mode. |
| 863 | */ |
| 864 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
| 865 | |
| 866 | val = rdl(mp, off); |
| 867 | val &= ~1; |
| 868 | wrl(mp, off, val); |
| 869 | |
| 870 | /* |
| 871 | * Configure WRR weight for this queue. |
| 872 | */ |
| 873 | off = TXQ_BW_WRR_CONF(mp->port_num); |
| 874 | |
| 875 | val = rdl(mp, off); |
| 876 | val = (val & ~0xff) | (weight & 0xff); |
| 877 | wrl(mp, off, val); |
| 878 | } |
| 879 | |
| 880 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 881 | /* mii management interface *************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 882 | #define SMI_BUSY 0x10000000 |
| 883 | #define SMI_READ_VALID 0x08000000 |
| 884 | #define SMI_OPCODE_READ 0x04000000 |
| 885 | #define SMI_OPCODE_WRITE 0x00000000 |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 886 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 887 | static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, |
| 888 | unsigned int reg, unsigned int *value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 889 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 890 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 891 | unsigned long flags; |
| 892 | int i; |
| 893 | |
| 894 | /* the SMI register is a shared resource */ |
| 895 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 896 | |
| 897 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 898 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 899 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 900 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 901 | goto out; |
| 902 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 903 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 904 | } |
| 905 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 906 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 907 | |
| 908 | /* now wait for the data to be valid */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 909 | for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 910 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 911 | printk("%s: PHY read timeout\n", mp->dev->name); |
| 912 | goto out; |
| 913 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 914 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 915 | } |
| 916 | |
| 917 | *value = readl(smi_reg) & 0xffff; |
| 918 | out: |
| 919 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 920 | } |
| 921 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 922 | static void smi_reg_write(struct mv643xx_eth_private *mp, |
| 923 | unsigned int addr, |
| 924 | unsigned int reg, unsigned int value) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 925 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 926 | void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 927 | unsigned long flags; |
| 928 | int i; |
| 929 | |
| 930 | /* the SMI register is a shared resource */ |
| 931 | spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); |
| 932 | |
| 933 | /* wait for the SMI register to become available */ |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 934 | for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 935 | if (i == 1000) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 936 | printk("%s: PHY busy timeout\n", mp->dev->name); |
| 937 | goto out; |
| 938 | } |
Lennert Buytenhek | e1bea50 | 2008-06-01 01:29:14 +0200 | [diff] [blame] | 939 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 940 | } |
| 941 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 942 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
| 943 | (addr << 16) | (value & 0xffff), smi_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 944 | out: |
| 945 | spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); |
| 946 | } |
| 947 | |
| 948 | |
| 949 | /* mib counters *************************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 950 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 951 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 952 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 953 | } |
| 954 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 955 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 956 | { |
| 957 | int i; |
| 958 | |
| 959 | for (i = 0; i < 0x80; i += 4) |
| 960 | mib_read(mp, i); |
| 961 | } |
| 962 | |
| 963 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 964 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 965 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 966 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 967 | p->good_octets_received += mib_read(mp, 0x00); |
| 968 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; |
| 969 | p->bad_octets_received += mib_read(mp, 0x08); |
| 970 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 971 | p->good_frames_received += mib_read(mp, 0x10); |
| 972 | p->bad_frames_received += mib_read(mp, 0x14); |
| 973 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 974 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 975 | p->frames_64_octets += mib_read(mp, 0x20); |
| 976 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 977 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 978 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 979 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 980 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 981 | p->good_octets_sent += mib_read(mp, 0x38); |
| 982 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; |
| 983 | p->good_frames_sent += mib_read(mp, 0x40); |
| 984 | p->excessive_collision += mib_read(mp, 0x44); |
| 985 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 986 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 987 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 988 | p->fc_sent += mib_read(mp, 0x54); |
| 989 | p->good_fc_received += mib_read(mp, 0x58); |
| 990 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 991 | p->undersize_received += mib_read(mp, 0x60); |
| 992 | p->fragments_received += mib_read(mp, 0x64); |
| 993 | p->oversize_received += mib_read(mp, 0x68); |
| 994 | p->jabber_received += mib_read(mp, 0x6c); |
| 995 | p->mac_receive_error += mib_read(mp, 0x70); |
| 996 | p->bad_crc_event += mib_read(mp, 0x74); |
| 997 | p->collision += mib_read(mp, 0x78); |
| 998 | p->late_collision += mib_read(mp, 0x7c); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 999 | } |
| 1000 | |
| 1001 | |
| 1002 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1003 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1004 | char stat_string[ETH_GSTRING_LEN]; |
| 1005 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1006 | int netdev_off; |
| 1007 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1008 | }; |
| 1009 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1010 | #define SSTAT(m) \ |
| 1011 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1012 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1013 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1014 | #define MIBSTAT(m) \ |
| 1015 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1016 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1017 | |
| 1018 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1019 | SSTAT(rx_packets), |
| 1020 | SSTAT(tx_packets), |
| 1021 | SSTAT(rx_bytes), |
| 1022 | SSTAT(tx_bytes), |
| 1023 | SSTAT(rx_errors), |
| 1024 | SSTAT(tx_errors), |
| 1025 | SSTAT(rx_dropped), |
| 1026 | SSTAT(tx_dropped), |
| 1027 | MIBSTAT(good_octets_received), |
| 1028 | MIBSTAT(bad_octets_received), |
| 1029 | MIBSTAT(internal_mac_transmit_err), |
| 1030 | MIBSTAT(good_frames_received), |
| 1031 | MIBSTAT(bad_frames_received), |
| 1032 | MIBSTAT(broadcast_frames_received), |
| 1033 | MIBSTAT(multicast_frames_received), |
| 1034 | MIBSTAT(frames_64_octets), |
| 1035 | MIBSTAT(frames_65_to_127_octets), |
| 1036 | MIBSTAT(frames_128_to_255_octets), |
| 1037 | MIBSTAT(frames_256_to_511_octets), |
| 1038 | MIBSTAT(frames_512_to_1023_octets), |
| 1039 | MIBSTAT(frames_1024_to_max_octets), |
| 1040 | MIBSTAT(good_octets_sent), |
| 1041 | MIBSTAT(good_frames_sent), |
| 1042 | MIBSTAT(excessive_collision), |
| 1043 | MIBSTAT(multicast_frames_sent), |
| 1044 | MIBSTAT(broadcast_frames_sent), |
| 1045 | MIBSTAT(unrec_mac_control_received), |
| 1046 | MIBSTAT(fc_sent), |
| 1047 | MIBSTAT(good_fc_received), |
| 1048 | MIBSTAT(bad_fc_received), |
| 1049 | MIBSTAT(undersize_received), |
| 1050 | MIBSTAT(fragments_received), |
| 1051 | MIBSTAT(oversize_received), |
| 1052 | MIBSTAT(jabber_received), |
| 1053 | MIBSTAT(mac_receive_error), |
| 1054 | MIBSTAT(bad_crc_event), |
| 1055 | MIBSTAT(collision), |
| 1056 | MIBSTAT(late_collision), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1057 | }; |
| 1058 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1059 | 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] | 1060 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1061 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1062 | int err; |
| 1063 | |
| 1064 | spin_lock_irq(&mp->lock); |
| 1065 | err = mii_ethtool_gset(&mp->mii, cmd); |
| 1066 | spin_unlock_irq(&mp->lock); |
| 1067 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1068 | /* |
| 1069 | * The MAC does not support 1000baseT_Half. |
| 1070 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1071 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1072 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1073 | |
| 1074 | return err; |
| 1075 | } |
| 1076 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1077 | 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] | 1078 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1079 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1080 | int err; |
| 1081 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1082 | /* |
| 1083 | * The MAC does not support 1000baseT_Half. |
| 1084 | */ |
| 1085 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1086 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1087 | spin_lock_irq(&mp->lock); |
| 1088 | err = mii_ethtool_sset(&mp->mii, cmd); |
| 1089 | spin_unlock_irq(&mp->lock); |
| 1090 | |
| 1091 | return err; |
| 1092 | } |
| 1093 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1094 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1095 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1096 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1097 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
| 1098 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1099 | strncpy(drvinfo->fw_version, "N/A", 32); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1100 | strncpy(drvinfo->bus_info, "platform", 32); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1101 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1102 | } |
| 1103 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1104 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1105 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1106 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1107 | |
| 1108 | return mii_nway_restart(&mp->mii); |
| 1109 | } |
| 1110 | |
| 1111 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
| 1112 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1113 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1114 | |
| 1115 | return mii_link_ok(&mp->mii); |
| 1116 | } |
| 1117 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1118 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1119 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1120 | { |
| 1121 | int i; |
| 1122 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1123 | if (stringset == ETH_SS_STATS) { |
| 1124 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1125 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1126 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1127 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1128 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1129 | } |
| 1130 | } |
| 1131 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1132 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1133 | struct ethtool_stats *stats, |
| 1134 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1135 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1136 | struct mv643xx_eth_private *mp = dev->priv; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1137 | int i; |
| 1138 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1139 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1140 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1141 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1142 | const struct mv643xx_eth_stats *stat; |
| 1143 | void *p; |
| 1144 | |
| 1145 | stat = mv643xx_eth_stats + i; |
| 1146 | |
| 1147 | if (stat->netdev_off >= 0) |
| 1148 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1149 | else |
| 1150 | p = ((void *)mp) + stat->mp_off; |
| 1151 | |
| 1152 | data[i] = (stat->sizeof_stat == 8) ? |
| 1153 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1154 | } |
| 1155 | } |
| 1156 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1157 | 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] | 1158 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1159 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1160 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1161 | |
| 1162 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1163 | } |
| 1164 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1165 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1166 | .get_settings = mv643xx_eth_get_settings, |
| 1167 | .set_settings = mv643xx_eth_set_settings, |
| 1168 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1169 | .nway_reset = mv643xx_eth_nway_reset, |
| 1170 | .get_link = mv643xx_eth_get_link, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1171 | .set_sg = ethtool_op_set_sg, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1172 | .get_strings = mv643xx_eth_get_strings, |
| 1173 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1174 | .get_sset_count = mv643xx_eth_get_sset_count, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1175 | }; |
| 1176 | |
| 1177 | |
| 1178 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1179 | 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] | 1180 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1181 | unsigned int mac_h; |
| 1182 | unsigned int mac_l; |
| 1183 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1184 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
| 1185 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1186 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1187 | addr[0] = (mac_h >> 24) & 0xff; |
| 1188 | addr[1] = (mac_h >> 16) & 0xff; |
| 1189 | addr[2] = (mac_h >> 8) & 0xff; |
| 1190 | addr[3] = mac_h & 0xff; |
| 1191 | addr[4] = (mac_l >> 8) & 0xff; |
| 1192 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1193 | } |
| 1194 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1195 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1196 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1197 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1198 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1199 | for (i = 0; i < 0x100; i += 4) { |
| 1200 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1201 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1202 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1203 | |
| 1204 | for (i = 0; i < 0x10; i += 4) |
| 1205 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1206 | } |
| 1207 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1208 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1209 | int table, unsigned char entry) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1210 | { |
| 1211 | unsigned int table_reg; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1212 | |
| 1213 | /* Set "accepts frame bit" at specified table entry */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1214 | table_reg = rdl(mp, table + (entry & 0xfc)); |
| 1215 | table_reg |= 0x01 << (8 * (entry & 3)); |
| 1216 | wrl(mp, table + (entry & 0xfc), table_reg); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1217 | } |
| 1218 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1219 | 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] | 1220 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1221 | unsigned int mac_h; |
| 1222 | unsigned int mac_l; |
| 1223 | int table; |
| 1224 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1225 | mac_l = (addr[4] << 8) | addr[5]; |
| 1226 | 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] | 1227 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1228 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
| 1229 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1230 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1231 | table = UNICAST_TABLE(mp->port_num); |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1232 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1233 | } |
| 1234 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1235 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1236 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1237 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1238 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1239 | /* +2 is for the offset of the HW addr type */ |
| 1240 | memcpy(dev->dev_addr, addr + 2, 6); |
| 1241 | |
| 1242 | init_mac_tables(mp); |
| 1243 | uc_addr_set(mp, dev->dev_addr); |
| 1244 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1245 | return 0; |
| 1246 | } |
| 1247 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1248 | static int addr_crc(unsigned char *addr) |
| 1249 | { |
| 1250 | int crc = 0; |
| 1251 | int i; |
| 1252 | |
| 1253 | for (i = 0; i < 6; i++) { |
| 1254 | int j; |
| 1255 | |
| 1256 | crc = (crc ^ addr[i]) << 8; |
| 1257 | for (j = 7; j >= 0; j--) { |
| 1258 | if (crc & (0x100 << j)) |
| 1259 | crc ^= 0x107 << j; |
| 1260 | } |
| 1261 | } |
| 1262 | |
| 1263 | return crc; |
| 1264 | } |
| 1265 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1266 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1267 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1268 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1269 | u32 port_config; |
| 1270 | struct dev_addr_list *addr; |
| 1271 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1272 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1273 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
| 1274 | if (dev->flags & IFF_PROMISC) |
| 1275 | port_config |= UNICAST_PROMISCUOUS_MODE; |
| 1276 | else |
| 1277 | port_config &= ~UNICAST_PROMISCUOUS_MODE; |
| 1278 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1279 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1280 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
| 1281 | int port_num = mp->port_num; |
| 1282 | u32 accept = 0x01010101; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1283 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1284 | for (i = 0; i < 0x100; i += 4) { |
| 1285 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1286 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1287 | } |
| 1288 | return; |
| 1289 | } |
| 1290 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1291 | for (i = 0; i < 0x100; i += 4) { |
| 1292 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); |
| 1293 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1294 | } |
| 1295 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1296 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
| 1297 | u8 *a = addr->da_addr; |
| 1298 | int table; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1299 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1300 | if (addr->da_addrlen != 6) |
| 1301 | continue; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1302 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1303 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
| 1304 | table = SPECIAL_MCAST_TABLE(mp->port_num); |
| 1305 | set_filter_table_entry(mp, table, a[5]); |
| 1306 | } else { |
| 1307 | int crc = addr_crc(a); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1308 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1309 | table = OTHER_MCAST_TABLE(mp->port_num); |
| 1310 | set_filter_table_entry(mp, table, crc); |
| 1311 | } |
| 1312 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1313 | } |
| 1314 | |
| 1315 | |
| 1316 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1317 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1318 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1319 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1320 | struct rx_desc *rx_desc; |
| 1321 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1322 | int i; |
| 1323 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1324 | rxq->index = index; |
| 1325 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1326 | rxq->rx_ring_size = mp->default_rx_ring_size; |
| 1327 | |
| 1328 | rxq->rx_desc_count = 0; |
| 1329 | rxq->rx_curr_desc = 0; |
| 1330 | rxq->rx_used_desc = 0; |
| 1331 | |
| 1332 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1333 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1334 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1335 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1336 | mp->rx_desc_sram_size); |
| 1337 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1338 | } else { |
| 1339 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, |
| 1340 | &rxq->rx_desc_dma, |
| 1341 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1342 | } |
| 1343 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1344 | if (rxq->rx_desc_area == NULL) { |
| 1345 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1346 | "can't allocate rx ring (%d bytes)\n", size); |
| 1347 | goto out; |
| 1348 | } |
| 1349 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1350 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1351 | rxq->rx_desc_area_size = size; |
| 1352 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), |
| 1353 | GFP_KERNEL); |
| 1354 | if (rxq->rx_skb == NULL) { |
| 1355 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1356 | "can't allocate rx skb ring\n"); |
| 1357 | goto out_free; |
| 1358 | } |
| 1359 | |
| 1360 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; |
| 1361 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1362 | int nexti = (i + 1) % rxq->rx_ring_size; |
| 1363 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1364 | nexti * sizeof(struct rx_desc); |
| 1365 | } |
| 1366 | |
| 1367 | init_timer(&rxq->rx_oom); |
| 1368 | rxq->rx_oom.data = (unsigned long)rxq; |
| 1369 | rxq->rx_oom.function = rxq_refill_timer_wrapper; |
| 1370 | |
| 1371 | return 0; |
| 1372 | |
| 1373 | |
| 1374 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1375 | if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1376 | iounmap(rxq->rx_desc_area); |
| 1377 | else |
| 1378 | dma_free_coherent(NULL, size, |
| 1379 | rxq->rx_desc_area, |
| 1380 | rxq->rx_desc_dma); |
| 1381 | |
| 1382 | out: |
| 1383 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1384 | } |
| 1385 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1386 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1387 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1388 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1389 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1390 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1391 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1392 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1393 | del_timer_sync(&rxq->rx_oom); |
| 1394 | |
| 1395 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1396 | if (rxq->rx_skb[i]) { |
| 1397 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1398 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1399 | } |
| 1400 | } |
| 1401 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1402 | if (rxq->rx_desc_count) { |
| 1403 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1404 | "error freeing rx ring -- %d skbs stuck\n", |
| 1405 | rxq->rx_desc_count); |
| 1406 | } |
| 1407 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1408 | if (rxq->index == mp->rxq_primary && |
| 1409 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1410 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1411 | else |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1412 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
| 1413 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1414 | |
| 1415 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1416 | } |
| 1417 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1418 | static int txq_init(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1419 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1420 | struct tx_queue *txq = mp->txq; |
| 1421 | struct tx_desc *tx_desc; |
| 1422 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1423 | int i; |
| 1424 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1425 | txq->tx_ring_size = mp->default_tx_ring_size; |
| 1426 | |
| 1427 | txq->tx_desc_count = 0; |
| 1428 | txq->tx_curr_desc = 0; |
| 1429 | txq->tx_used_desc = 0; |
| 1430 | |
| 1431 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1432 | |
| 1433 | if (size <= mp->tx_desc_sram_size) { |
| 1434 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1435 | mp->tx_desc_sram_size); |
| 1436 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1437 | } else { |
| 1438 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, |
| 1439 | &txq->tx_desc_dma, |
| 1440 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1441 | } |
| 1442 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1443 | if (txq->tx_desc_area == NULL) { |
| 1444 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1445 | "can't allocate tx ring (%d bytes)\n", size); |
| 1446 | goto out; |
| 1447 | } |
| 1448 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1449 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1450 | txq->tx_desc_area_size = size; |
| 1451 | txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), |
| 1452 | GFP_KERNEL); |
| 1453 | if (txq->tx_skb == NULL) { |
| 1454 | dev_printk(KERN_ERR, &mp->dev->dev, |
| 1455 | "can't allocate tx skb ring\n"); |
| 1456 | goto out_free; |
| 1457 | } |
| 1458 | |
| 1459 | tx_desc = (struct tx_desc *)txq->tx_desc_area; |
| 1460 | for (i = 0; i < txq->tx_ring_size; i++) { |
| 1461 | int nexti = (i + 1) % txq->tx_ring_size; |
| 1462 | tx_desc[i].next_desc_ptr = txq->tx_desc_dma + |
| 1463 | nexti * sizeof(struct tx_desc); |
| 1464 | } |
| 1465 | |
| 1466 | return 0; |
| 1467 | |
| 1468 | |
| 1469 | out_free: |
| 1470 | if (size <= mp->tx_desc_sram_size) |
| 1471 | iounmap(txq->tx_desc_area); |
| 1472 | else |
| 1473 | dma_free_coherent(NULL, size, |
| 1474 | txq->tx_desc_area, |
| 1475 | txq->tx_desc_dma); |
| 1476 | |
| 1477 | out: |
| 1478 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1479 | } |
| 1480 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1481 | static void txq_reclaim(struct tx_queue *txq, int force) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1482 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1483 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1484 | unsigned long flags; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1485 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1486 | spin_lock_irqsave(&mp->lock, flags); |
| 1487 | while (txq->tx_desc_count > 0) { |
| 1488 | int tx_index; |
| 1489 | struct tx_desc *desc; |
| 1490 | u32 cmd_sts; |
| 1491 | struct sk_buff *skb; |
| 1492 | dma_addr_t addr; |
| 1493 | int count; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1494 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1495 | tx_index = txq->tx_used_desc; |
| 1496 | desc = &txq->tx_desc_area[tx_index]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1497 | cmd_sts = desc->cmd_sts; |
| 1498 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1499 | if (!force && (cmd_sts & BUFFER_OWNED_BY_DMA)) |
| 1500 | break; |
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 | txq->tx_used_desc = (tx_index + 1) % txq->tx_ring_size; |
| 1503 | txq->tx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1504 | |
| 1505 | addr = desc->buf_ptr; |
| 1506 | count = desc->byte_cnt; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1507 | skb = txq->tx_skb[tx_index]; |
| 1508 | txq->tx_skb[tx_index] = NULL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1509 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1510 | if (cmd_sts & ERROR_SUMMARY) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1511 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); |
| 1512 | mp->dev->stats.tx_errors++; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1513 | } |
| 1514 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1515 | /* |
| 1516 | * Drop mp->lock while we free the skb. |
| 1517 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1518 | spin_unlock_irqrestore(&mp->lock, flags); |
| 1519 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1520 | if (cmd_sts & TX_FIRST_DESC) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1521 | dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); |
| 1522 | else |
| 1523 | dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); |
| 1524 | |
| 1525 | if (skb) |
| 1526 | dev_kfree_skb_irq(skb); |
| 1527 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1528 | spin_lock_irqsave(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1529 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1530 | spin_unlock_irqrestore(&mp->lock, flags); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1531 | } |
| 1532 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1533 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1534 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1535 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1536 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1537 | txq_disable(txq); |
| 1538 | txq_reclaim(txq, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1539 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1540 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1541 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1542 | if (txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
| 1543 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1544 | else |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1545 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
| 1546 | txq->tx_desc_area, txq->tx_desc_dma); |
| 1547 | |
| 1548 | kfree(txq->tx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1553 | 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] | 1554 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1555 | u32 pscr_o; |
| 1556 | u32 pscr_n; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1557 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1558 | pscr_o = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1559 | |
| 1560 | /* clear speed, duplex and rx buffer size fields */ |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1561 | pscr_n = pscr_o & ~(SET_MII_SPEED_TO_100 | |
| 1562 | SET_GMII_SPEED_TO_1000 | |
| 1563 | SET_FULL_DUPLEX_MODE | |
| 1564 | MAX_RX_PACKET_MASK); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1565 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1566 | if (speed == SPEED_1000) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1567 | pscr_n |= SET_GMII_SPEED_TO_1000 | MAX_RX_PACKET_9700BYTE; |
| 1568 | } else { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1569 | if (speed == SPEED_100) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1570 | pscr_n |= SET_MII_SPEED_TO_100; |
| 1571 | pscr_n |= MAX_RX_PACKET_1522BYTE; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1572 | } |
| 1573 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1574 | if (duplex == DUPLEX_FULL) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1575 | pscr_n |= SET_FULL_DUPLEX_MODE; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1576 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1577 | if (pscr_n != pscr_o) { |
| 1578 | if ((pscr_o & SERIAL_PORT_ENABLE) == 0) |
| 1579 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
| 1580 | else { |
| 1581 | txq_disable(mp->txq); |
| 1582 | pscr_o &= ~SERIAL_PORT_ENABLE; |
| 1583 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_o); |
| 1584 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
| 1585 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); |
| 1586 | txq_enable(mp->txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1587 | } |
| 1588 | } |
| 1589 | } |
| 1590 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1591 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1592 | { |
| 1593 | struct net_device *dev = (struct net_device *)dev_id; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1594 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1595 | u32 int_cause; |
| 1596 | u32 int_cause_ext; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1597 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1598 | 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] | 1599 | if (int_cause == 0) |
| 1600 | return IRQ_NONE; |
| 1601 | |
| 1602 | int_cause_ext = 0; |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1603 | if (int_cause & INT_EXT) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1604 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 1605 | & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1606 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1607 | } |
| 1608 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1609 | if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1610 | if (mii_link_ok(&mp->mii)) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1611 | struct ethtool_cmd cmd; |
| 1612 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1613 | mii_ethtool_gset(&mp->mii, &cmd); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1614 | update_pscr(mp, cmd.speed, cmd.duplex); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1615 | txq_enable(mp->txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1616 | if (!netif_carrier_ok(dev)) { |
| 1617 | netif_carrier_on(dev); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1618 | __txq_maybe_wake(mp->txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1619 | } |
| 1620 | } else if (netif_carrier_ok(dev)) { |
| 1621 | netif_stop_queue(dev); |
| 1622 | netif_carrier_off(dev); |
| 1623 | } |
| 1624 | } |
| 1625 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1626 | /* |
| 1627 | * RxBuffer or RxError set for any of the 8 queues? |
| 1628 | */ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1629 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1630 | if (int_cause & INT_RX) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1631 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1632 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1633 | |
| 1634 | netif_rx_schedule(dev, &mp->napi); |
| 1635 | } |
| 1636 | #else |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1637 | if (int_cause & INT_RX) { |
| 1638 | int i; |
| 1639 | |
| 1640 | for (i = 7; i >= 0; i--) |
| 1641 | if (mp->rxq_mask & (1 << i)) |
| 1642 | rxq_process(mp->rxq + i, INT_MAX); |
| 1643 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1644 | #endif |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1645 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1646 | if (int_cause_ext & INT_EXT_TX) { |
| 1647 | txq_reclaim(mp->txq, 0); |
| 1648 | __txq_maybe_wake(mp->txq); |
| 1649 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1650 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1651 | return IRQ_HANDLED; |
| 1652 | } |
| 1653 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1654 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1655 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1656 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1657 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1658 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 1659 | data |= 0x8000; |
| 1660 | smi_reg_write(mp, mp->phy_addr, 0, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1661 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1662 | do { |
| 1663 | udelay(1); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1664 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 1665 | } while (data & 0x8000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1666 | } |
| 1667 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1668 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1669 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1670 | u32 pscr; |
| 1671 | struct ethtool_cmd ethtool_cmd; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1672 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1673 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1674 | /* |
| 1675 | * Configure basic link parameters. |
| 1676 | */ |
| 1677 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1678 | pscr &= ~(SERIAL_PORT_ENABLE | FORCE_LINK_PASS); |
| 1679 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1680 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL | |
| 1681 | DISABLE_AUTO_NEG_SPEED_GMII | |
| 1682 | DISABLE_AUTO_NEG_FOR_DUPLEX | |
| 1683 | DO_NOT_FORCE_LINK_FAIL | |
| 1684 | SERIAL_PORT_CONTROL_RESERVED; |
| 1685 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
| 1686 | pscr |= SERIAL_PORT_ENABLE; |
| 1687 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1688 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1689 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 1690 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1691 | mv643xx_eth_get_settings(mp->dev, ðtool_cmd); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1692 | phy_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1693 | mv643xx_eth_set_settings(mp->dev, ðtool_cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1694 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1695 | /* |
| 1696 | * Configure TX path and queues. |
| 1697 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1698 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1699 | for (i = 0; i < 1; i++) { |
| 1700 | struct tx_queue *txq = mp->txq; |
| 1701 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num); |
| 1702 | u32 addr; |
| 1703 | |
| 1704 | addr = (u32)txq->tx_desc_dma; |
| 1705 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
| 1706 | wrl(mp, off, addr); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1707 | |
| 1708 | txq_set_rate(txq, 1000000000, 16777216); |
| 1709 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1710 | } |
| 1711 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1712 | /* |
| 1713 | * Add configured unicast address to address filter table. |
| 1714 | */ |
| 1715 | uc_addr_set(mp, mp->dev->dev_addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1716 | |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 1717 | /* |
| 1718 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
| 1719 | * frames to RX queue #0. |
| 1720 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1721 | wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1722 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 1723 | /* |
| 1724 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 1725 | */ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1726 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1727 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1728 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1729 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1730 | */ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1731 | for (i = 0; i < 8; i++) { |
| 1732 | struct rx_queue *rxq = mp->rxq + i; |
| 1733 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1734 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1735 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1736 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1737 | continue; |
| 1738 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1739 | addr = (u32)rxq->rx_desc_dma; |
| 1740 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
| 1741 | wrl(mp, off, addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1742 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1743 | rxq_enable(rxq); |
| 1744 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1745 | } |
| 1746 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1747 | 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] | 1748 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1749 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1750 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1751 | if (coal > 0x3fff) |
| 1752 | coal = 0x3fff; |
| 1753 | |
| 1754 | wrl(mp, SDMA_CONFIG(mp->port_num), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1755 | ((coal & 0x3fff) << 8) | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1756 | (rdl(mp, SDMA_CONFIG(mp->port_num)) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1757 | & 0xffc000ff)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1758 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1759 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1760 | 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] | 1761 | { |
| 1762 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
| 1763 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1764 | if (coal > 0x3fff) |
| 1765 | coal = 0x3fff; |
| 1766 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1767 | } |
| 1768 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1769 | static int mv643xx_eth_open(struct net_device *dev) |
| 1770 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1771 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1772 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1773 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1774 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1775 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
| 1776 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); |
| 1777 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1778 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1779 | err = request_irq(dev->irq, mv643xx_eth_irq, |
| 1780 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, |
| 1781 | dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1782 | if (err) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1783 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1784 | return -EAGAIN; |
| 1785 | } |
| 1786 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1787 | init_mac_tables(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1788 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1789 | for (i = 0; i < 8; i++) { |
| 1790 | if ((mp->rxq_mask & (1 << i)) == 0) |
| 1791 | continue; |
| 1792 | |
| 1793 | err = rxq_init(mp, i); |
| 1794 | if (err) { |
| 1795 | while (--i >= 0) |
| 1796 | if (mp->rxq_mask & (1 << i)) |
| 1797 | rxq_deinit(mp->rxq + i); |
| 1798 | goto out; |
| 1799 | } |
| 1800 | |
| 1801 | rxq_refill(mp->rxq + i); |
| 1802 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1803 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1804 | err = txq_init(mp); |
| 1805 | if (err) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1806 | goto out_free; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1807 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1808 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1809 | napi_enable(&mp->napi); |
| 1810 | #endif |
| 1811 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1812 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1813 | |
Lennert Buytenhek | ffd86bb | 2008-06-01 21:59:27 +0200 | [diff] [blame] | 1814 | set_rx_coal(mp, 0); |
| 1815 | set_tx_coal(mp, 0); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1816 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1817 | wrl(mp, INT_MASK_EXT(mp->port_num), |
| 1818 | INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1819 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1820 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1821 | |
| 1822 | return 0; |
| 1823 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1824 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1825 | out_free: |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1826 | for (i = 0; i < 8; i++) |
| 1827 | if (mp->rxq_mask & (1 << i)) |
| 1828 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1829 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1830 | free_irq(dev->irq, dev); |
| 1831 | |
| 1832 | return err; |
| 1833 | } |
| 1834 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1835 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1836 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1837 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1838 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1839 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1840 | for (i = 0; i < 8; i++) { |
| 1841 | if (mp->rxq_mask & (1 << i)) |
| 1842 | rxq_disable(mp->rxq + i); |
| 1843 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1844 | txq_disable(mp->txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1845 | while (!(rdl(mp, PORT_STATUS(mp->port_num)) & TX_FIFO_EMPTY)) |
| 1846 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1847 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1848 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1849 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
| 1850 | data &= ~(SERIAL_PORT_ENABLE | |
| 1851 | DO_NOT_FORCE_LINK_FAIL | |
| 1852 | FORCE_LINK_PASS); |
| 1853 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1854 | } |
| 1855 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1856 | static int mv643xx_eth_stop(struct net_device *dev) |
| 1857 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1858 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1859 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1860 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1861 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 1862 | rdl(mp, INT_MASK(mp->port_num)); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1863 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1864 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1865 | napi_disable(&mp->napi); |
| 1866 | #endif |
| 1867 | netif_carrier_off(dev); |
| 1868 | netif_stop_queue(dev); |
| 1869 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1870 | free_irq(dev->irq, dev); |
| 1871 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1872 | port_reset(mp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1873 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1874 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 1875 | for (i = 0; i < 8; i++) { |
| 1876 | if (mp->rxq_mask & (1 << i)) |
| 1877 | rxq_deinit(mp->rxq + i); |
| 1878 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1879 | txq_deinit(mp->txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1880 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1881 | return 0; |
| 1882 | } |
| 1883 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1884 | 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] | 1885 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1886 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1887 | |
| 1888 | return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); |
| 1889 | } |
| 1890 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1891 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 1892 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1893 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1894 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1895 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1896 | return -EINVAL; |
| 1897 | |
| 1898 | dev->mtu = new_mtu; |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1899 | tx_set_rate(mp, 1000000000, 16777216); |
| 1900 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1901 | if (!netif_running(dev)) |
| 1902 | return 0; |
| 1903 | |
| 1904 | /* |
| 1905 | * Stop and then re-open the interface. This will allocate RX |
| 1906 | * skbs of the new MTU. |
| 1907 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1908 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1909 | */ |
| 1910 | mv643xx_eth_stop(dev); |
| 1911 | if (mv643xx_eth_open(dev)) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1912 | dev_printk(KERN_ERR, &dev->dev, |
| 1913 | "fatal error on re-opening device after " |
| 1914 | "MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1915 | } |
| 1916 | |
| 1917 | return 0; |
| 1918 | } |
| 1919 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1920 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1921 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1922 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1923 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1924 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 1925 | if (netif_running(mp->dev)) { |
| 1926 | netif_stop_queue(mp->dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1927 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1928 | port_reset(mp); |
| 1929 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1930 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1931 | __txq_maybe_wake(mp->txq); |
| 1932 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1933 | } |
| 1934 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1935 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 1936 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1937 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1938 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1939 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1940 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1941 | schedule_work(&mp->tx_timeout_task); |
| 1942 | } |
| 1943 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1944 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1945 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1946 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1947 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1948 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1949 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
| 1950 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 1951 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1952 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 1953 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1954 | wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_CAUSE_EXT); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 1955 | } |
| 1956 | #endif |
| 1957 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1958 | 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] | 1959 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1960 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1961 | int val; |
| 1962 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1963 | smi_reg_read(mp, addr, reg, &val); |
| 1964 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1965 | return val; |
| 1966 | } |
| 1967 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1968 | 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] | 1969 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1970 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1971 | smi_reg_write(mp, addr, reg, val); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1972 | } |
| 1973 | |
| 1974 | |
| 1975 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1976 | static void |
| 1977 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
| 1978 | struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1979 | { |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 1980 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1981 | u32 win_enable; |
| 1982 | u32 win_protect; |
| 1983 | int i; |
| 1984 | |
| 1985 | for (i = 0; i < 6; i++) { |
| 1986 | writel(0, base + WINDOW_BASE(i)); |
| 1987 | writel(0, base + WINDOW_SIZE(i)); |
| 1988 | if (i < 4) |
| 1989 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 1990 | } |
| 1991 | |
| 1992 | win_enable = 0x3f; |
| 1993 | win_protect = 0; |
| 1994 | |
| 1995 | for (i = 0; i < dram->num_cs; i++) { |
| 1996 | struct mbus_dram_window *cs = dram->cs + i; |
| 1997 | |
| 1998 | writel((cs->base & 0xffff0000) | |
| 1999 | (cs->mbus_attr << 8) | |
| 2000 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2001 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2002 | |
| 2003 | win_enable &= ~(1 << i); |
| 2004 | win_protect |= 3 << (2 * i); |
| 2005 | } |
| 2006 | |
| 2007 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2008 | msp->win_protect = win_protect; |
| 2009 | } |
| 2010 | |
| 2011 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2012 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2013 | static int mv643xx_eth_version_printed = 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2014 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2015 | struct mv643xx_eth_shared_private *msp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2016 | struct resource *res; |
| 2017 | int ret; |
| 2018 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2019 | if (!mv643xx_eth_version_printed++) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2020 | printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); |
| 2021 | |
| 2022 | ret = -EINVAL; |
| 2023 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2024 | if (res == NULL) |
| 2025 | goto out; |
| 2026 | |
| 2027 | ret = -ENOMEM; |
| 2028 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); |
| 2029 | if (msp == NULL) |
| 2030 | goto out; |
| 2031 | memset(msp, 0, sizeof(*msp)); |
| 2032 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2033 | msp->base = ioremap(res->start, res->end - res->start + 1); |
| 2034 | if (msp->base == NULL) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2035 | goto out_free; |
| 2036 | |
| 2037 | spin_lock_init(&msp->phy_lock); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2038 | |
| 2039 | /* |
| 2040 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2041 | */ |
| 2042 | if (pd != NULL && pd->dram != NULL) |
| 2043 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); |
| 2044 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2045 | /* |
| 2046 | * Detect hardware parameters. |
| 2047 | */ |
| 2048 | msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; |
| 2049 | |
| 2050 | platform_set_drvdata(pdev, msp); |
| 2051 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2052 | return 0; |
| 2053 | |
| 2054 | out_free: |
| 2055 | kfree(msp); |
| 2056 | out: |
| 2057 | return ret; |
| 2058 | } |
| 2059 | |
| 2060 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2061 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2062 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2063 | |
Lennert Buytenhek | cc9754b | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2064 | iounmap(msp->base); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2065 | kfree(msp); |
| 2066 | |
| 2067 | return 0; |
| 2068 | } |
| 2069 | |
| 2070 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2071 | .probe = mv643xx_eth_shared_probe, |
| 2072 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2073 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2074 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2075 | .owner = THIS_MODULE, |
| 2076 | }, |
| 2077 | }; |
| 2078 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2079 | 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] | 2080 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2081 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2082 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2083 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2084 | data = rdl(mp, PHY_ADDR); |
| 2085 | data &= ~(0x1f << addr_shift); |
| 2086 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2087 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2088 | } |
| 2089 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2090 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2091 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2092 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2093 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2094 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2095 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2096 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2097 | } |
| 2098 | |
| 2099 | static void set_params(struct mv643xx_eth_private *mp, |
| 2100 | struct mv643xx_eth_platform_data *pd) |
| 2101 | { |
| 2102 | struct net_device *dev = mp->dev; |
| 2103 | |
| 2104 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2105 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2106 | else |
| 2107 | uc_addr_get(mp, dev->dev_addr); |
| 2108 | |
| 2109 | if (pd->phy_addr == -1) { |
| 2110 | mp->shared_smi = NULL; |
| 2111 | mp->phy_addr = -1; |
| 2112 | } else { |
| 2113 | mp->shared_smi = mp->shared; |
| 2114 | if (pd->shared_smi != NULL) |
| 2115 | mp->shared_smi = platform_get_drvdata(pd->shared_smi); |
| 2116 | |
| 2117 | if (pd->force_phy_addr || pd->phy_addr) { |
| 2118 | mp->phy_addr = pd->phy_addr & 0x3f; |
| 2119 | phy_addr_set(mp, mp->phy_addr); |
| 2120 | } else { |
| 2121 | mp->phy_addr = phy_addr_get(mp); |
| 2122 | } |
| 2123 | } |
| 2124 | |
| 2125 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
| 2126 | if (pd->rx_queue_size) |
| 2127 | mp->default_rx_ring_size = pd->rx_queue_size; |
| 2128 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2129 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2130 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame^] | 2131 | if (pd->rx_queue_mask) |
| 2132 | mp->rxq_mask = pd->rx_queue_mask; |
| 2133 | else |
| 2134 | mp->rxq_mask = 0x01; |
| 2135 | mp->rxq_primary = fls(mp->rxq_mask) - 1; |
| 2136 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2137 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
| 2138 | if (pd->tx_queue_size) |
| 2139 | mp->default_tx_ring_size = pd->tx_queue_size; |
| 2140 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2141 | mp->tx_desc_sram_size = pd->tx_sram_size; |
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_detect(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; |
| 2147 | unsigned int data2; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2148 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2149 | smi_reg_read(mp, mp->phy_addr, 0, &data); |
| 2150 | smi_reg_write(mp, mp->phy_addr, 0, data ^ 0x1000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2151 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2152 | smi_reg_read(mp, mp->phy_addr, 0, &data2); |
| 2153 | if (((data ^ data2) & 0x1000) == 0) |
| 2154 | return -ENODEV; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2155 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2156 | smi_reg_write(mp, mp->phy_addr, 0, data); |
| 2157 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2158 | return 0; |
| 2159 | } |
| 2160 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2161 | static int phy_init(struct mv643xx_eth_private *mp, |
| 2162 | struct mv643xx_eth_platform_data *pd) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2163 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2164 | struct ethtool_cmd cmd; |
| 2165 | int err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2166 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2167 | err = phy_detect(mp); |
| 2168 | if (err) { |
| 2169 | dev_printk(KERN_INFO, &mp->dev->dev, |
| 2170 | "no PHY detected at addr %d\n", mp->phy_addr); |
| 2171 | return err; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2172 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2173 | phy_reset(mp); |
| 2174 | |
| 2175 | mp->mii.phy_id = mp->phy_addr; |
| 2176 | mp->mii.phy_id_mask = 0x3f; |
| 2177 | mp->mii.reg_num_mask = 0x1f; |
| 2178 | mp->mii.dev = mp->dev; |
| 2179 | mp->mii.mdio_read = mv643xx_eth_mdio_read; |
| 2180 | mp->mii.mdio_write = mv643xx_eth_mdio_write; |
| 2181 | |
| 2182 | mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); |
| 2183 | |
| 2184 | memset(&cmd, 0, sizeof(cmd)); |
| 2185 | |
| 2186 | cmd.port = PORT_MII; |
| 2187 | cmd.transceiver = XCVR_INTERNAL; |
| 2188 | cmd.phy_address = mp->phy_addr; |
| 2189 | if (pd->speed == 0) { |
| 2190 | cmd.autoneg = AUTONEG_ENABLE; |
| 2191 | cmd.speed = SPEED_100; |
| 2192 | cmd.advertising = ADVERTISED_10baseT_Half | |
| 2193 | ADVERTISED_10baseT_Full | |
| 2194 | ADVERTISED_100baseT_Half | |
| 2195 | ADVERTISED_100baseT_Full; |
| 2196 | if (mp->mii.supports_gmii) |
| 2197 | cmd.advertising |= ADVERTISED_1000baseT_Full; |
| 2198 | } else { |
| 2199 | cmd.autoneg = AUTONEG_DISABLE; |
| 2200 | cmd.speed = pd->speed; |
| 2201 | cmd.duplex = pd->duplex; |
| 2202 | } |
| 2203 | |
| 2204 | update_pscr(mp, cmd.speed, cmd.duplex); |
| 2205 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2206 | |
| 2207 | return 0; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2208 | } |
| 2209 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2210 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2211 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2212 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2213 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2214 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2215 | struct resource *res; |
Al Viro | c5d6471 | 2007-10-13 08:30:26 +0100 | [diff] [blame] | 2216 | DECLARE_MAC_BUF(mac); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2217 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2218 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2219 | pd = pdev->dev.platform_data; |
| 2220 | if (pd == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2221 | dev_printk(KERN_ERR, &pdev->dev, |
| 2222 | "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2223 | return -ENODEV; |
| 2224 | } |
| 2225 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2226 | if (pd->shared == NULL) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2227 | dev_printk(KERN_ERR, &pdev->dev, |
| 2228 | "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2229 | return -ENODEV; |
| 2230 | } |
| 2231 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2232 | dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | if (!dev) |
| 2234 | return -ENOMEM; |
| 2235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2236 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2237 | platform_set_drvdata(pdev, mp); |
| 2238 | |
| 2239 | mp->shared = platform_get_drvdata(pd->shared); |
| 2240 | mp->port_num = pd->port_number; |
| 2241 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2242 | mp->dev = dev; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2243 | #ifdef MV643XX_ETH_NAPI |
| 2244 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2245 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2247 | set_params(mp, pd); |
| 2248 | |
| 2249 | spin_lock_init(&mp->lock); |
| 2250 | |
| 2251 | mib_counters_clear(mp); |
| 2252 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2253 | |
| 2254 | err = phy_init(mp, pd); |
| 2255 | if (err) |
| 2256 | goto out; |
| 2257 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
| 2258 | |
| 2259 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2260 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2261 | BUG_ON(!res); |
| 2262 | dev->irq = res->start; |
| 2263 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2264 | dev->hard_start_xmit = mv643xx_eth_xmit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2265 | dev->open = mv643xx_eth_open; |
| 2266 | dev->stop = mv643xx_eth_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2267 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2268 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
| 2269 | dev->do_ioctl = mv643xx_eth_ioctl; |
| 2270 | dev->change_mtu = mv643xx_eth_change_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2272 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2273 | dev->poll_controller = mv643xx_eth_netpoll; |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2274 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2276 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2277 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2278 | #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2279 | /* |
| 2280 | * Zero copy can only work if we use Discovery II memory. Else, we will |
| 2281 | * have to map the buffers to ISA memory which is only 16 MB |
| 2282 | */ |
Wolfram Joost | 6389057 | 2006-01-16 16:57:41 -0700 | [diff] [blame] | 2283 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2284 | #endif |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2285 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2286 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2287 | |
| 2288 | if (mp->shared->win_protect) |
| 2289 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2291 | err = register_netdev(dev); |
| 2292 | if (err) |
| 2293 | goto out; |
| 2294 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2295 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", |
| 2296 | mp->port_num, print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2297 | |
| 2298 | if (dev->features & NETIF_F_SG) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2299 | dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2300 | |
| 2301 | if (dev->features & NETIF_F_IP_CSUM) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2302 | dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2304 | #ifdef MV643XX_ETH_NAPI |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2305 | dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2306 | #endif |
| 2307 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2308 | if (mp->tx_desc_sram_size > 0) |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2309 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2311 | return 0; |
| 2312 | |
| 2313 | out: |
| 2314 | free_netdev(dev); |
| 2315 | |
| 2316 | return err; |
| 2317 | } |
| 2318 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2319 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2320 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2321 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2322 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2323 | unregister_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2324 | flush_scheduled_work(); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2325 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2326 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2327 | platform_set_drvdata(pdev, NULL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2329 | return 0; |
| 2330 | } |
| 2331 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2332 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2333 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2334 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2335 | |
| 2336 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2337 | wrl(mp, INT_MASK(mp->port_num), 0); |
| 2338 | rdl(mp, INT_MASK(mp->port_num)); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2339 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2340 | if (netif_running(mp->dev)) |
| 2341 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2342 | } |
| 2343 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2344 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2345 | .probe = mv643xx_eth_probe, |
| 2346 | .remove = mv643xx_eth_remove, |
| 2347 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2348 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2349 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2350 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2351 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | }; |
| 2353 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2354 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | { |
| 2356 | int rc; |
| 2357 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2358 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2359 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2360 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2362 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2364 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2365 | return rc; |
| 2366 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2367 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2368 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2369 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2371 | platform_driver_unregister(&mv643xx_eth_driver); |
| 2372 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2374 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2375 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2376 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani " |
| 2377 | "and Dale Farnsworth"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2378 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2379 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 2380 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2381 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |