Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Lennert Buytenhek | 9c1bbdf | 2007-10-19 04:11:03 +0200 | [diff] [blame] | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
| 4 | * |
| 5 | * Based on the 64360 driver from: |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
| 7 | * Rabeeh Khoury <rabeeh@marvell.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 2003 PMC-Sierra, Inc., |
Olaf Hering | 3bb8a18a | 2006-01-05 22:45:45 -0800 | [diff] [blame] | 10 | * written by Manish Lachwani |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * |
| 12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> |
| 13 | * |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Dale Farnsworth <dale@farnsworth.org> |
| 16 | * |
| 17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> |
| 18 | * <sjhill@realitydiluted.com> |
| 19 | * |
Lennert Buytenhek | 4547fa6 | 2008-03-18 11:40:14 -0700 | [diff] [blame] | 20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
| 21 | * Lennert Buytenhek <buytenh@marvell.com> |
| 22 | * |
Michael Stapelberg | 3871c38 | 2013-03-11 13:56:45 +0000 | [diff] [blame] | 23 | * Copyright (C) 2013 Michael Stapelberg <michael@stapelberg.de> |
| 24 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | * This program is free software; you can redistribute it and/or |
| 26 | * modify it under the terms of the GNU General Public License |
| 27 | * as published by the Free Software Foundation; either version 2 |
| 28 | * of the License, or (at your option) any later version. |
| 29 | * |
| 30 | * This program is distributed in the hope that it will be useful, |
| 31 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 32 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 33 | * GNU General Public License for more details. |
| 34 | * |
| 35 | * You should have received a copy of the GNU General Public License |
| 36 | * along with this program; if not, write to the Free Software |
| 37 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 38 | */ |
Lennert Buytenhek | a779d38 | 2008-06-01 00:54:05 +0200 | [diff] [blame] | 39 | |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 40 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <linux/init.h> |
| 43 | #include <linux/dma-mapping.h> |
Al Viro | b6298c2 | 2006-01-18 19:35:54 -0500 | [diff] [blame] | 44 | #include <linux/in.h> |
Lennert Buytenhek | c3efab8 | 2008-10-02 00:52:39 +0000 | [diff] [blame] | 45 | #include <linux/ip.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #include <linux/tcp.h> |
| 47 | #include <linux/udp.h> |
| 48 | #include <linux/etherdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <linux/delay.h> |
| 50 | #include <linux/ethtool.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 51 | #include <linux/platform_device.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 52 | #include <linux/module.h> |
| 53 | #include <linux/kernel.h> |
| 54 | #include <linux/spinlock.h> |
| 55 | #include <linux/workqueue.h> |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 56 | #include <linux/phy.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 57 | #include <linux/mv643xx_eth.h> |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 58 | #include <linux/io.h> |
Sebastian Hesselbarth | 3619eb8 | 2013-04-11 23:20:00 +0000 | [diff] [blame] | 59 | #include <linux/interrupt.h> |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 60 | #include <linux/types.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 61 | #include <linux/slab.h> |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 62 | #include <linux/clk.h> |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 63 | #include <linux/of.h> |
| 64 | #include <linux/of_irq.h> |
| 65 | #include <linux/of_net.h> |
Sebastian Hesselbarth | cc9d459 | 2013-05-29 09:32:46 +0000 | [diff] [blame] | 66 | #include <linux/of_mdio.h> |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 67 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 68 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
Lennert Buytenhek | 042af53 | 2008-08-24 09:01:57 +0200 | [diff] [blame] | 69 | static char mv643xx_eth_driver_version[] = "1.4"; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 70 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 71 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 72 | /* |
| 73 | * Registers shared between all ports. |
| 74 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 75 | #define PHY_ADDR 0x0000 |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 76 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
| 77 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) |
| 78 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) |
| 79 | #define WINDOW_BAR_ENABLE 0x0290 |
| 80 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 81 | |
| 82 | /* |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 83 | * Main per-port registers. These live at offset 0x0400 for |
| 84 | * port #0, 0x0800 for port #1, and 0x0c00 for port #2. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 85 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 86 | #define PORT_CONFIG 0x0000 |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 87 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 88 | #define PORT_CONFIG_EXT 0x0004 |
| 89 | #define MAC_ADDR_LOW 0x0014 |
| 90 | #define MAC_ADDR_HIGH 0x0018 |
| 91 | #define SDMA_CONFIG 0x001c |
Lennert Buytenhek | becfad9 | 2009-05-06 03:01:17 +0000 | [diff] [blame] | 92 | #define TX_BURST_SIZE_16_64BIT 0x01000000 |
| 93 | #define TX_BURST_SIZE_4_64BIT 0x00800000 |
| 94 | #define BLM_TX_NO_SWAP 0x00000020 |
| 95 | #define BLM_RX_NO_SWAP 0x00000010 |
| 96 | #define RX_BURST_SIZE_16_64BIT 0x00000008 |
| 97 | #define RX_BURST_SIZE_4_64BIT 0x00000004 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 98 | #define PORT_SERIAL_CONTROL 0x003c |
Lennert Buytenhek | becfad9 | 2009-05-06 03:01:17 +0000 | [diff] [blame] | 99 | #define SET_MII_SPEED_TO_100 0x01000000 |
| 100 | #define SET_GMII_SPEED_TO_1000 0x00800000 |
| 101 | #define SET_FULL_DUPLEX_MODE 0x00200000 |
| 102 | #define MAX_RX_PACKET_9700BYTE 0x000a0000 |
| 103 | #define DISABLE_AUTO_NEG_SPEED_GMII 0x00002000 |
| 104 | #define DO_NOT_FORCE_LINK_FAIL 0x00000400 |
| 105 | #define SERIAL_PORT_CONTROL_RESERVED 0x00000200 |
| 106 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL 0x00000008 |
| 107 | #define DISABLE_AUTO_NEG_FOR_DUPLEX 0x00000004 |
| 108 | #define FORCE_LINK_PASS 0x00000002 |
| 109 | #define SERIAL_PORT_ENABLE 0x00000001 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 110 | #define PORT_STATUS 0x0044 |
Lennert Buytenhek | a2a4168 | 2008-06-01 01:30:42 +0200 | [diff] [blame] | 111 | #define TX_FIFO_EMPTY 0x00000400 |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 112 | #define TX_IN_PROGRESS 0x00000080 |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 113 | #define PORT_SPEED_MASK 0x00000030 |
| 114 | #define PORT_SPEED_1000 0x00000010 |
| 115 | #define PORT_SPEED_100 0x00000020 |
| 116 | #define PORT_SPEED_10 0x00000000 |
| 117 | #define FLOW_CONTROL_ENABLED 0x00000008 |
| 118 | #define FULL_DUPLEX 0x00000004 |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 119 | #define LINK_UP 0x00000002 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 120 | #define TXQ_COMMAND 0x0048 |
| 121 | #define TXQ_FIX_PRIO_CONF 0x004c |
Sebastian Hesselbarth | cb85215 | 2013-05-29 09:32:47 +0000 | [diff] [blame] | 122 | #define PORT_SERIAL_CONTROL1 0x004c |
| 123 | #define CLK125_BYPASS_EN 0x00000010 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 124 | #define TX_BW_RATE 0x0050 |
| 125 | #define TX_BW_MTU 0x0058 |
| 126 | #define TX_BW_BURST 0x005c |
| 127 | #define INT_CAUSE 0x0060 |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 128 | #define INT_TX_END 0x07f80000 |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 129 | #define INT_TX_END_0 0x00080000 |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame] | 130 | #define INT_RX 0x000003fc |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 131 | #define INT_RX_0 0x00000004 |
Lennert Buytenhek | 073a345 | 2008-06-01 02:00:31 +0200 | [diff] [blame] | 132 | #define INT_EXT 0x00000002 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 133 | #define INT_CAUSE_EXT 0x0064 |
Lennert Buytenhek | befefe2 | 2008-08-28 06:10:04 +0200 | [diff] [blame] | 134 | #define INT_EXT_LINK_PHY 0x00110000 |
| 135 | #define INT_EXT_TX 0x000000ff |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 136 | #define INT_MASK 0x0068 |
| 137 | #define INT_MASK_EXT 0x006c |
| 138 | #define TX_FIFO_URGENT_THRESHOLD 0x0074 |
Paulius Zaleckas | 302476c | 2012-01-23 01:16:35 +0000 | [diff] [blame] | 139 | #define RX_DISCARD_FRAME_CNT 0x0084 |
| 140 | #define RX_OVERRUN_FRAME_CNT 0x0088 |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 141 | #define TXQ_FIX_PRIO_CONF_MOVED 0x00dc |
| 142 | #define TX_BW_RATE_MOVED 0x00e0 |
| 143 | #define TX_BW_MTU_MOVED 0x00e8 |
| 144 | #define TX_BW_BURST_MOVED 0x00ec |
| 145 | #define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4)) |
| 146 | #define RXQ_COMMAND 0x0280 |
| 147 | #define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2)) |
| 148 | #define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4)) |
| 149 | #define TXQ_BW_CONF(q) (0x0304 + ((q) << 4)) |
| 150 | #define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4)) |
| 151 | |
| 152 | /* |
| 153 | * Misc per-port registers. |
| 154 | */ |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 155 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
| 156 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) |
| 157 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) |
| 158 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 159 | |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 160 | |
| 161 | /* |
Lennert Buytenhek | becfad9 | 2009-05-06 03:01:17 +0000 | [diff] [blame] | 162 | * SDMA configuration register default value. |
Lennert Buytenhek | 2679a55 | 2008-06-01 01:18:58 +0200 | [diff] [blame] | 163 | */ |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 164 | #if defined(__BIG_ENDIAN) |
| 165 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 166 | (RX_BURST_SIZE_4_64BIT | \ |
| 167 | TX_BURST_SIZE_4_64BIT) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 168 | #elif defined(__LITTLE_ENDIAN) |
| 169 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ |
Lennert Buytenhek | e0c6ef9 | 2009-01-19 17:16:00 -0800 | [diff] [blame] | 170 | (RX_BURST_SIZE_4_64BIT | \ |
| 171 | BLM_RX_NO_SWAP | \ |
| 172 | BLM_TX_NO_SWAP | \ |
| 173 | TX_BURST_SIZE_4_64BIT) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 174 | #else |
| 175 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 176 | #endif |
| 177 | |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 178 | |
| 179 | /* |
Lennert Buytenhek | becfad9 | 2009-05-06 03:01:17 +0000 | [diff] [blame] | 180 | * Misc definitions. |
Lennert Buytenhek | 2beff77 | 2008-06-01 01:22:37 +0200 | [diff] [blame] | 181 | */ |
Lennert Buytenhek | becfad9 | 2009-05-06 03:01:17 +0000 | [diff] [blame] | 182 | #define DEFAULT_RX_QUEUE_SIZE 128 |
| 183 | #define DEFAULT_TX_QUEUE_SIZE 256 |
Lennert Buytenhek | 7fd96ce | 2009-05-06 03:01:22 +0000 | [diff] [blame] | 184 | #define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES) |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 185 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 186 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 187 | /* |
| 188 | * RX/TX descriptors. |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 189 | */ |
| 190 | #if defined(__BIG_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 191 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 192 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 193 | u16 buf_size; /* Buffer size */ |
| 194 | u32 cmd_sts; /* Descriptor command status */ |
| 195 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 196 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 197 | }; |
| 198 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 199 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 200 | u16 byte_cnt; /* buffer byte count */ |
| 201 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 202 | u32 cmd_sts; /* Command/status field */ |
| 203 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 204 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 205 | }; |
| 206 | #elif defined(__LITTLE_ENDIAN) |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 207 | struct rx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 208 | u32 cmd_sts; /* Descriptor command status */ |
| 209 | u16 buf_size; /* Buffer size */ |
| 210 | u16 byte_cnt; /* Descriptor buffer byte count */ |
| 211 | u32 buf_ptr; /* Descriptor buffer pointer */ |
| 212 | u32 next_desc_ptr; /* Next descriptor pointer */ |
| 213 | }; |
| 214 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 215 | struct tx_desc { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 216 | u32 cmd_sts; /* Command/status field */ |
| 217 | u16 l4i_chk; /* CPU provided TCP checksum */ |
| 218 | u16 byte_cnt; /* buffer byte count */ |
| 219 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ |
| 220 | u32 next_desc_ptr; /* Pointer to next descriptor */ |
| 221 | }; |
| 222 | #else |
| 223 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined |
| 224 | #endif |
| 225 | |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 226 | /* RX & TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 227 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 228 | |
| 229 | /* RX & TX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 230 | #define ERROR_SUMMARY 0x00000001 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 231 | |
| 232 | /* RX descriptor status */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 233 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
| 234 | #define RX_ENABLE_INTERRUPT 0x20000000 |
| 235 | #define RX_FIRST_DESC 0x08000000 |
| 236 | #define RX_LAST_DESC 0x04000000 |
Lennert Buytenhek | eaf5d59 | 2009-02-12 14:08:39 +0000 | [diff] [blame] | 237 | #define RX_IP_HDR_OK 0x02000000 |
| 238 | #define RX_PKT_IS_IPV4 0x01000000 |
| 239 | #define RX_PKT_IS_ETHERNETV2 0x00800000 |
| 240 | #define RX_PKT_LAYER4_TYPE_MASK 0x00600000 |
| 241 | #define RX_PKT_LAYER4_TYPE_TCP_IPV4 0x00000000 |
| 242 | #define RX_PKT_IS_VLAN_TAGGED 0x00080000 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 243 | |
| 244 | /* TX descriptor command */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 245 | #define TX_ENABLE_INTERRUPT 0x00800000 |
| 246 | #define GEN_CRC 0x00400000 |
| 247 | #define TX_FIRST_DESC 0x00200000 |
| 248 | #define TX_LAST_DESC 0x00100000 |
| 249 | #define ZERO_PADDING 0x00080000 |
| 250 | #define GEN_IP_V4_CHECKSUM 0x00040000 |
| 251 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 |
| 252 | #define UDP_FRAME 0x00010000 |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 253 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
| 254 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 255 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 256 | #define TX_IHL_SHIFT 11 |
Lennert Buytenhek | 7ca72a3 | 2008-06-01 01:41:29 +0200 | [diff] [blame] | 257 | |
| 258 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 259 | /* global *******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 260 | struct mv643xx_eth_shared_private { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 261 | /* |
| 262 | * Ethernet controller base address. |
| 263 | */ |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 264 | void __iomem *base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 265 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 266 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 267 | * Per-port MBUS window access register value. |
| 268 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 269 | u32 win_protect; |
| 270 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 271 | /* |
| 272 | * Hardware-specific parameters. |
| 273 | */ |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 274 | int extended_rx_coal_limit; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 275 | int tx_bw_control; |
Saeed Bishara | 9b2c2ff | 2010-06-27 00:26:43 +0000 | [diff] [blame] | 276 | int tx_csum_limit; |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 277 | struct clk *clk; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 278 | }; |
| 279 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 280 | #define TX_BW_CONTROL_ABSENT 0 |
| 281 | #define TX_BW_CONTROL_OLD_LAYOUT 1 |
| 282 | #define TX_BW_CONTROL_NEW_LAYOUT 2 |
| 283 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 284 | static int mv643xx_eth_open(struct net_device *dev); |
| 285 | static int mv643xx_eth_stop(struct net_device *dev); |
| 286 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 287 | |
| 288 | /* per-port *****************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 289 | struct mib_counters { |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 290 | u64 good_octets_received; |
| 291 | u32 bad_octets_received; |
| 292 | u32 internal_mac_transmit_err; |
| 293 | u32 good_frames_received; |
| 294 | u32 bad_frames_received; |
| 295 | u32 broadcast_frames_received; |
| 296 | u32 multicast_frames_received; |
| 297 | u32 frames_64_octets; |
| 298 | u32 frames_65_to_127_octets; |
| 299 | u32 frames_128_to_255_octets; |
| 300 | u32 frames_256_to_511_octets; |
| 301 | u32 frames_512_to_1023_octets; |
| 302 | u32 frames_1024_to_max_octets; |
| 303 | u64 good_octets_sent; |
| 304 | u32 good_frames_sent; |
| 305 | u32 excessive_collision; |
| 306 | u32 multicast_frames_sent; |
| 307 | u32 broadcast_frames_sent; |
| 308 | u32 unrec_mac_control_received; |
| 309 | u32 fc_sent; |
| 310 | u32 good_fc_received; |
| 311 | u32 bad_fc_received; |
| 312 | u32 undersize_received; |
| 313 | u32 fragments_received; |
| 314 | u32 oversize_received; |
| 315 | u32 jabber_received; |
| 316 | u32 mac_receive_error; |
| 317 | u32 bad_crc_event; |
| 318 | u32 collision; |
| 319 | u32 late_collision; |
Paulius Zaleckas | 302476c | 2012-01-23 01:16:35 +0000 | [diff] [blame] | 320 | /* Non MIB hardware counters */ |
| 321 | u32 rx_discard; |
| 322 | u32 rx_overrun; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 323 | }; |
| 324 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 325 | struct rx_queue { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 326 | int index; |
| 327 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 328 | int rx_ring_size; |
| 329 | |
| 330 | int rx_desc_count; |
| 331 | int rx_curr_desc; |
| 332 | int rx_used_desc; |
| 333 | |
| 334 | struct rx_desc *rx_desc_area; |
| 335 | dma_addr_t rx_desc_dma; |
| 336 | int rx_desc_area_size; |
| 337 | struct sk_buff **rx_skb; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 338 | }; |
| 339 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 340 | struct tx_queue { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 341 | int index; |
| 342 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 343 | int tx_ring_size; |
| 344 | |
| 345 | int tx_desc_count; |
| 346 | int tx_curr_desc; |
| 347 | int tx_used_desc; |
| 348 | |
| 349 | struct tx_desc *tx_desc_area; |
| 350 | dma_addr_t tx_desc_dma; |
| 351 | int tx_desc_area_size; |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 352 | |
| 353 | struct sk_buff_head tx_skb; |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 354 | |
| 355 | unsigned long tx_packets; |
| 356 | unsigned long tx_bytes; |
| 357 | unsigned long tx_dropped; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 358 | }; |
| 359 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 360 | struct mv643xx_eth_private { |
| 361 | struct mv643xx_eth_shared_private *shared; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 362 | void __iomem *base; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 363 | int port_num; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 364 | |
| 365 | struct net_device *dev; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 366 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 367 | struct phy_device *phy; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 368 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 369 | struct timer_list mib_counters_timer; |
| 370 | spinlock_t mib_counters_lock; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 371 | struct mib_counters mib_counters; |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 372 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 373 | struct work_struct tx_timeout_task; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 374 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 375 | struct napi_struct napi; |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 376 | u32 int_mask; |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 377 | u8 oom; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 378 | u8 work_link; |
| 379 | u8 work_tx; |
| 380 | u8 work_tx_end; |
| 381 | u8 work_rx; |
| 382 | u8 work_rx_refill; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 383 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 384 | int skb_size; |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 385 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 386 | /* |
| 387 | * RX state. |
| 388 | */ |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 389 | int rx_ring_size; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 390 | unsigned long rx_desc_sram_addr; |
| 391 | int rx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 392 | int rxq_count; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 393 | struct timer_list rx_oom; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 394 | struct rx_queue rxq[8]; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 395 | |
| 396 | /* |
| 397 | * TX state. |
| 398 | */ |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 399 | int tx_ring_size; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 400 | unsigned long tx_desc_sram_addr; |
| 401 | int tx_desc_sram_size; |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 402 | int txq_count; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 403 | struct tx_queue txq[8]; |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 404 | |
| 405 | /* |
| 406 | * Hardware-specific parameters. |
| 407 | */ |
| 408 | struct clk *clk; |
| 409 | unsigned int t_clk; |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 410 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
Lennert Buytenhek | fbd6a75 | 2007-10-19 16:03:46 +0200 | [diff] [blame] | 412 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 413 | /* port register accessors **************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 414 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 416 | return readl(mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | } |
| 418 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 419 | static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset) |
| 420 | { |
| 421 | return readl(mp->base + offset); |
| 422 | } |
| 423 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 424 | 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] | 425 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 426 | writel(data, mp->shared->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | } |
| 428 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 429 | static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data) |
| 430 | { |
| 431 | writel(data, mp->base + offset); |
| 432 | } |
| 433 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 434 | |
| 435 | /* rxq/txq helper functions *************************************************/ |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 436 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 438 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 439 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 441 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
| 442 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 443 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 444 | } |
| 445 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 446 | static void rxq_enable(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 447 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 448 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 449 | wrlp(mp, RXQ_COMMAND, 1 << rxq->index); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 450 | } |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 451 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 452 | static void rxq_disable(struct rx_queue *rxq) |
| 453 | { |
| 454 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 455 | u8 mask = 1 << rxq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 456 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 457 | wrlp(mp, RXQ_COMMAND, mask << 8); |
| 458 | while (rdlp(mp, RXQ_COMMAND) & mask) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 459 | udelay(10); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 460 | } |
| 461 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 462 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
| 463 | { |
| 464 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 465 | u32 addr; |
| 466 | |
| 467 | addr = (u32)txq->tx_desc_dma; |
| 468 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 469 | wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr); |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 470 | } |
| 471 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 472 | static void txq_enable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 473 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 474 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 475 | wrlp(mp, TXQ_COMMAND, 1 << txq->index); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 476 | } |
| 477 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 478 | static void txq_disable(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 479 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 480 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 481 | u8 mask = 1 << txq->index; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 482 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 483 | wrlp(mp, TXQ_COMMAND, mask << 8); |
| 484 | while (rdlp(mp, TXQ_COMMAND) & mask) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 485 | udelay(10); |
| 486 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 487 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 488 | static void txq_maybe_wake(struct tx_queue *txq) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 489 | { |
| 490 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 491 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 492 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 493 | if (netif_tx_queue_stopped(nq)) { |
| 494 | __netif_tx_lock(nq, smp_processor_id()); |
| 495 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1) |
| 496 | netif_tx_wake_queue(nq); |
| 497 | __netif_tx_unlock(nq); |
| 498 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 499 | } |
| 500 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 501 | static int rxq_process(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 503 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 504 | struct net_device_stats *stats = &mp->dev->stats; |
| 505 | int rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 507 | rx = 0; |
Lennert Buytenhek | 9e1f377 | 2008-08-24 02:33:47 +0200 | [diff] [blame] | 508 | while (rx < budget && rxq->rx_desc_count) { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 509 | struct rx_desc *rx_desc; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 510 | unsigned int cmd_sts; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 511 | struct sk_buff *skb; |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 512 | u16 byte_cnt; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 513 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 514 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 515 | |
| 516 | cmd_sts = rx_desc->cmd_sts; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 517 | if (cmd_sts & BUFFER_OWNED_BY_DMA) |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 518 | break; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 519 | rmb(); |
| 520 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 521 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
| 522 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 523 | |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 524 | rxq->rx_curr_desc++; |
| 525 | if (rxq->rx_curr_desc == rxq->rx_ring_size) |
| 526 | rxq->rx_curr_desc = 0; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 527 | |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 528 | dma_unmap_single(mp->dev->dev.parent, rx_desc->buf_ptr, |
Lennert Buytenhek | abe7871 | 2008-08-24 03:00:20 +0200 | [diff] [blame] | 529 | rx_desc->buf_size, DMA_FROM_DEVICE); |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 530 | rxq->rx_desc_count--; |
| 531 | rx++; |
Dale Farnsworth | b1dd9ca | 2005-09-01 09:59:23 -0700 | [diff] [blame] | 532 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 533 | mp->work_rx_refill |= 1 << rxq->index; |
| 534 | |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 535 | byte_cnt = rx_desc->byte_cnt; |
| 536 | |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 537 | /* |
| 538 | * Update statistics. |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 539 | * |
| 540 | * Note that the descriptor byte count includes 2 dummy |
| 541 | * bytes automatically inserted by the hardware at the |
| 542 | * start of the packet (which we don't count), and a 4 |
| 543 | * byte CRC at the end of the packet (which we do count). |
Dale Farnsworth | 468d09f | 2006-03-03 10:04:39 -0700 | [diff] [blame] | 544 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | stats->rx_packets++; |
Lennert Buytenhek | 6b8f90c | 2008-09-14 15:50:32 +0200 | [diff] [blame] | 546 | stats->rx_bytes += byte_cnt - 2; |
Lennert Buytenhek | 9658766 | 2008-06-01 10:31:56 +0200 | [diff] [blame] | 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | /* |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 549 | * In case we received a packet without first / last bits |
| 550 | * on, or the error summary bit is set, the packet needs |
| 551 | * to be dropped. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | */ |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 553 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY)) |
| 554 | != (RX_FIRST_DESC | RX_LAST_DESC)) |
| 555 | goto err; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 556 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 557 | /* |
| 558 | * The -4 is for the CRC in the trailer of the |
| 559 | * received packet |
| 560 | */ |
| 561 | skb_put(skb, byte_cnt - 2 - 4); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 562 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 563 | if (cmd_sts & LAYER_4_CHECKSUM_OK) |
| 564 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 565 | skb->protocol = eth_type_trans(skb, mp->dev); |
Lennert Buytenhek | eaf5d59 | 2009-02-12 14:08:39 +0000 | [diff] [blame] | 566 | |
Sebastian Hesselbarth | 3619eb8 | 2013-04-11 23:20:00 +0000 | [diff] [blame] | 567 | napi_gro_receive(&mp->napi, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 569 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 571 | err: |
| 572 | stats->rx_dropped++; |
| 573 | |
| 574 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
| 575 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
| 576 | if (net_ratelimit()) |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 577 | netdev_err(mp->dev, |
| 578 | "received packet spanning multiple descriptors\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | } |
Lennert Buytenhek | f61e554 | 2008-11-20 03:58:46 -0800 | [diff] [blame] | 580 | |
| 581 | if (cmd_sts & ERROR_SUMMARY) |
| 582 | stats->rx_errors++; |
| 583 | |
| 584 | dev_kfree_skb(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 586 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 587 | if (rx < budget) |
| 588 | mp->work_rx &= ~(1 << rxq->index); |
| 589 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 590 | return rx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | } |
| 592 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 593 | static int rxq_refill(struct rx_queue *rxq, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | { |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 595 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 596 | int refilled; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 597 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 598 | refilled = 0; |
| 599 | while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { |
| 600 | struct sk_buff *skb; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 601 | int rx; |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 602 | struct rx_desc *rx_desc; |
Saeed Bishara | 530e557 | 2010-01-05 09:15:32 +0000 | [diff] [blame] | 603 | int size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
Eric Dumazet | acb600d | 2012-10-05 06:23:55 +0000 | [diff] [blame] | 605 | skb = netdev_alloc_skb(mp->dev, mp->skb_size); |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 606 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 607 | if (skb == NULL) { |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 608 | mp->oom = 1; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 609 | goto oom; |
| 610 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | |
Lennert Buytenhek | 7fd96ce | 2009-05-06 03:01:22 +0000 | [diff] [blame] | 612 | if (SKB_DMA_REALIGN) |
| 613 | skb_reserve(skb, SKB_DMA_REALIGN); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 614 | |
| 615 | refilled++; |
| 616 | rxq->rx_desc_count++; |
| 617 | |
| 618 | rx = rxq->rx_used_desc++; |
| 619 | if (rxq->rx_used_desc == rxq->rx_ring_size) |
| 620 | rxq->rx_used_desc = 0; |
| 621 | |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 622 | rx_desc = rxq->rx_desc_area + rx; |
| 623 | |
Isaku Yamahata | 18f1d05 | 2013-06-14 17:58:33 +0900 | [diff] [blame] | 624 | size = skb_end_pointer(skb) - skb->data; |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 625 | rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent, |
Saeed Bishara | 530e557 | 2010-01-05 09:15:32 +0000 | [diff] [blame] | 626 | skb->data, size, |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 627 | DMA_FROM_DEVICE); |
Saeed Bishara | 530e557 | 2010-01-05 09:15:32 +0000 | [diff] [blame] | 628 | rx_desc->buf_size = size; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 629 | rxq->rx_skb[rx] = skb; |
| 630 | wmb(); |
Lennert Buytenhek | 5377152 | 2008-11-20 03:59:04 -0800 | [diff] [blame] | 631 | rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 632 | wmb(); |
| 633 | |
| 634 | /* |
| 635 | * The hardware automatically prepends 2 bytes of |
| 636 | * dummy data to each received packet, so that the |
| 637 | * IP header ends up 16-byte aligned. |
| 638 | */ |
| 639 | skb_reserve(skb, 2); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 640 | } |
| 641 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 642 | if (refilled < budget) |
| 643 | mp->work_rx_refill &= ~(1 << rxq->index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 645 | oom: |
| 646 | return refilled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 649 | |
| 650 | /* tx ***********************************************************************/ |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 651 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
| 652 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 653 | int frag; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 654 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 655 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 656 | const skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
| 657 | |
| 658 | if (skb_frag_size(fragp) <= 8 && fragp->page_offset & 7) |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 659 | return 1; |
| 660 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 661 | |
Dale Farnsworth | b4de905 | 2006-01-27 01:04:43 -0700 | [diff] [blame] | 662 | return 0; |
Paul Janzen | f7ea333 | 2006-01-16 16:52:13 -0700 | [diff] [blame] | 663 | } |
| 664 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 665 | 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] | 666 | { |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 667 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 668 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 669 | int frag; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 670 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 671 | for (frag = 0; frag < nr_frags; frag++) { |
| 672 | skb_frag_t *this_frag; |
| 673 | int tx_index; |
| 674 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 675 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 676 | this_frag = &skb_shinfo(skb)->frags[frag]; |
Lennert Buytenhek | 66823b9 | 2008-11-20 03:58:09 -0800 | [diff] [blame] | 677 | tx_index = txq->tx_curr_desc++; |
| 678 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 679 | txq->tx_curr_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 680 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 681 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 682 | /* |
| 683 | * The last fragment will generate an interrupt |
| 684 | * which will free the skb on TX completion. |
| 685 | */ |
| 686 | if (frag == nr_frags - 1) { |
| 687 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | |
| 688 | ZERO_PADDING | TX_LAST_DESC | |
| 689 | TX_ENABLE_INTERRUPT; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 690 | } else { |
| 691 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 692 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 693 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 694 | desc->l4i_chk = 0; |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 695 | desc->byte_cnt = skb_frag_size(this_frag); |
Ian Campbell | f106358 | 2011-08-31 00:46:57 +0000 | [diff] [blame] | 696 | desc->buf_ptr = skb_frag_dma_map(mp->dev->dev.parent, |
| 697 | this_frag, 0, |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 698 | skb_frag_size(this_frag), |
Ian Campbell | f106358 | 2011-08-31 00:46:57 +0000 | [diff] [blame] | 699 | DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 700 | } |
| 701 | } |
| 702 | |
Byron Bradley | 324ff2c | 2008-02-04 23:47:15 -0800 | [diff] [blame] | 703 | static inline __be16 sum16_as_be(__sum16 sum) |
| 704 | { |
| 705 | return (__force __be16)sum; |
| 706 | } |
| 707 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 708 | static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 709 | { |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 710 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 711 | int nr_frags = skb_shinfo(skb)->nr_frags; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 712 | int tx_index; |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 713 | struct tx_desc *desc; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 714 | u32 cmd_sts; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 715 | u16 l4i_chk; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 716 | int length; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 717 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 718 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 719 | l4i_chk = 0; |
| 720 | |
| 721 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Saeed Bishara | 9b2c2ff | 2010-06-27 00:26:43 +0000 | [diff] [blame] | 722 | int hdr_len; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 723 | int tag_bytes; |
| 724 | |
| 725 | BUG_ON(skb->protocol != htons(ETH_P_IP) && |
| 726 | skb->protocol != htons(ETH_P_8021Q)); |
| 727 | |
Saeed Bishara | 9b2c2ff | 2010-06-27 00:26:43 +0000 | [diff] [blame] | 728 | hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; |
| 729 | tag_bytes = hdr_len - ETH_HLEN; |
| 730 | if (skb->len - hdr_len > mp->shared->tx_csum_limit || |
| 731 | unlikely(tag_bytes & ~12)) { |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 732 | if (skb_checksum_help(skb) == 0) |
| 733 | goto no_csum; |
| 734 | kfree_skb(skb); |
| 735 | return 1; |
| 736 | } |
| 737 | |
| 738 | if (tag_bytes & 4) |
| 739 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
| 740 | if (tag_bytes & 8) |
| 741 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
| 742 | |
| 743 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | |
| 744 | GEN_IP_V4_CHECKSUM | |
| 745 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; |
| 746 | |
| 747 | switch (ip_hdr(skb)->protocol) { |
| 748 | case IPPROTO_UDP: |
| 749 | cmd_sts |= UDP_FRAME; |
| 750 | l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
| 751 | break; |
| 752 | case IPPROTO_TCP: |
| 753 | l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
| 754 | break; |
| 755 | default: |
| 756 | BUG(); |
| 757 | } |
| 758 | } else { |
| 759 | no_csum: |
| 760 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
| 761 | cmd_sts |= 5 << TX_IHL_SHIFT; |
| 762 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 763 | |
Lennert Buytenhek | 66823b9 | 2008-11-20 03:58:09 -0800 | [diff] [blame] | 764 | tx_index = txq->tx_curr_desc++; |
| 765 | if (txq->tx_curr_desc == txq->tx_ring_size) |
| 766 | txq->tx_curr_desc = 0; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 767 | desc = &txq->tx_desc_area[tx_index]; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 768 | |
Dale Farnsworth | ff561ee | 2006-03-03 10:02:51 -0700 | [diff] [blame] | 769 | if (nr_frags) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 770 | txq_submit_frag_skb(txq, skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 771 | length = skb_headlen(skb); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 772 | } else { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 773 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 774 | length = skb->len; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 775 | } |
| 776 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 777 | desc->l4i_chk = l4i_chk; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 778 | desc->byte_cnt = length; |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 779 | desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data, |
| 780 | length, DMA_TO_DEVICE); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 781 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 782 | __skb_queue_tail(&txq->tx_skb, skb); |
| 783 | |
Richard Cochran | 3b182d7 | 2011-06-21 16:01:11 -0700 | [diff] [blame] | 784 | skb_tx_timestamp(skb); |
| 785 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 786 | /* ensure all other descriptors are written before first cmd_sts */ |
| 787 | wmb(); |
| 788 | desc->cmd_sts = cmd_sts; |
| 789 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 790 | /* clear TX_END status */ |
| 791 | mp->work_tx_end &= ~(1 << txq->index); |
Lennert Buytenhek | 8fa89bf | 2008-07-14 22:56:55 +0200 | [diff] [blame] | 792 | |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 793 | /* ensure all descriptors are written before poking hardware */ |
| 794 | wmb(); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 795 | txq_enable(txq); |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 796 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 797 | txq->tx_desc_count += nr_frags + 1; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 798 | |
| 799 | return 0; |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 800 | } |
| 801 | |
Denis Kirjanov | 0ccfe64 | 2009-11-29 17:04:31 -0800 | [diff] [blame] | 802 | static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 804 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Richard Cochran | 73151ce | 2011-06-21 16:00:24 -0700 | [diff] [blame] | 805 | int length, queue; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 806 | struct tx_queue *txq; |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 807 | struct netdev_queue *nq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 809 | queue = skb_get_queue_mapping(skb); |
| 810 | txq = mp->txq + queue; |
| 811 | nq = netdev_get_tx_queue(dev, queue); |
| 812 | |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 813 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 814 | txq->tx_dropped++; |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 815 | netdev_printk(KERN_DEBUG, dev, |
| 816 | "failed to linearize skb with tiny unaligned fragment\n"); |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 817 | return NETDEV_TX_BUSY; |
Dale Farnsworth | 9484356 | 2006-04-11 18:24:26 -0700 | [diff] [blame] | 818 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | |
Lennert Buytenhek | 17cd0a5 | 2008-08-24 05:33:55 +0200 | [diff] [blame] | 820 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 821 | if (net_ratelimit()) |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 822 | netdev_err(dev, "tx queue full?!\n"); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 823 | kfree_skb(skb); |
| 824 | return NETDEV_TX_OK; |
Lennert Buytenhek | 4d64e71 | 2008-03-18 11:32:41 -0700 | [diff] [blame] | 825 | } |
| 826 | |
Richard Cochran | 73151ce | 2011-06-21 16:00:24 -0700 | [diff] [blame] | 827 | length = skb->len; |
| 828 | |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 829 | if (!txq_submit_skb(txq, skb)) { |
| 830 | int entries_left; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | |
Richard Cochran | 73151ce | 2011-06-21 16:00:24 -0700 | [diff] [blame] | 832 | txq->tx_bytes += length; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 833 | txq->tx_packets++; |
Lennert Buytenhek | 4df89bd | 2008-09-19 04:05:00 +0200 | [diff] [blame] | 834 | |
| 835 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
| 836 | if (entries_left < MAX_SKB_FRAGS + 1) |
| 837 | netif_tx_stop_queue(nq); |
| 838 | } |
Dale Farnsworth | c8aaea2 | 2006-03-03 10:02:05 -0700 | [diff] [blame] | 839 | |
Lennert Buytenhek | c0d0f2c | 2008-03-18 11:34:34 -0700 | [diff] [blame] | 840 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | } |
| 842 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 843 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 844 | /* tx napi ******************************************************************/ |
| 845 | static void txq_kick(struct tx_queue *txq) |
| 846 | { |
| 847 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 848 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 849 | u32 hw_desc_ptr; |
| 850 | u32 expected_ptr; |
| 851 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 852 | __netif_tx_lock(nq, smp_processor_id()); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 853 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 854 | if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index)) |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 855 | goto out; |
| 856 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 857 | hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index)); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 858 | expected_ptr = (u32)txq->tx_desc_dma + |
| 859 | txq->tx_curr_desc * sizeof(struct tx_desc); |
| 860 | |
| 861 | if (hw_desc_ptr != expected_ptr) |
| 862 | txq_enable(txq); |
| 863 | |
| 864 | out: |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 865 | __netif_tx_unlock(nq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 866 | |
| 867 | mp->work_tx_end &= ~(1 << txq->index); |
| 868 | } |
| 869 | |
| 870 | static int txq_reclaim(struct tx_queue *txq, int budget, int force) |
| 871 | { |
| 872 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 873 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 874 | int reclaimed; |
| 875 | |
Russell King | 3aefe2b | 2013-05-16 06:31:42 +0000 | [diff] [blame] | 876 | __netif_tx_lock_bh(nq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 877 | |
| 878 | reclaimed = 0; |
| 879 | while (reclaimed < budget && txq->tx_desc_count > 0) { |
| 880 | int tx_index; |
| 881 | struct tx_desc *desc; |
| 882 | u32 cmd_sts; |
| 883 | struct sk_buff *skb; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 884 | |
| 885 | tx_index = txq->tx_used_desc; |
| 886 | desc = &txq->tx_desc_area[tx_index]; |
| 887 | cmd_sts = desc->cmd_sts; |
| 888 | |
| 889 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { |
| 890 | if (!force) |
| 891 | break; |
| 892 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; |
| 893 | } |
| 894 | |
| 895 | txq->tx_used_desc = tx_index + 1; |
| 896 | if (txq->tx_used_desc == txq->tx_ring_size) |
| 897 | txq->tx_used_desc = 0; |
| 898 | |
| 899 | reclaimed++; |
| 900 | txq->tx_desc_count--; |
| 901 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 902 | skb = NULL; |
| 903 | if (cmd_sts & TX_LAST_DESC) |
| 904 | skb = __skb_dequeue(&txq->tx_skb); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 905 | |
| 906 | if (cmd_sts & ERROR_SUMMARY) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 907 | netdev_info(mp->dev, "tx error\n"); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 908 | mp->dev->stats.tx_errors++; |
| 909 | } |
| 910 | |
Lennert Buytenhek | a418950 | 2008-09-13 04:16:15 +0200 | [diff] [blame] | 911 | if (cmd_sts & TX_FIRST_DESC) { |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 912 | dma_unmap_single(mp->dev->dev.parent, desc->buf_ptr, |
Lennert Buytenhek | a418950 | 2008-09-13 04:16:15 +0200 | [diff] [blame] | 913 | desc->byte_cnt, DMA_TO_DEVICE); |
| 914 | } else { |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 915 | dma_unmap_page(mp->dev->dev.parent, desc->buf_ptr, |
Lennert Buytenhek | a418950 | 2008-09-13 04:16:15 +0200 | [diff] [blame] | 916 | desc->byte_cnt, DMA_TO_DEVICE); |
| 917 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 918 | |
Eric Dumazet | acb600d | 2012-10-05 06:23:55 +0000 | [diff] [blame] | 919 | dev_kfree_skb(skb); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 920 | } |
| 921 | |
Russell King | 3aefe2b | 2013-05-16 06:31:42 +0000 | [diff] [blame] | 922 | __netif_tx_unlock_bh(nq); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 923 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 924 | if (reclaimed < budget) |
| 925 | mp->work_tx &= ~(1 << txq->index); |
| 926 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 927 | return reclaimed; |
| 928 | } |
| 929 | |
| 930 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 931 | /* tx rate control **********************************************************/ |
| 932 | /* |
| 933 | * Set total maximum TX rate (shared by all TX queues for this port) |
| 934 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. |
| 935 | */ |
| 936 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) |
| 937 | { |
| 938 | int token_rate; |
| 939 | int mtu; |
| 940 | int bucket_size; |
| 941 | |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 942 | token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 943 | if (token_rate > 1023) |
| 944 | token_rate = 1023; |
| 945 | |
| 946 | mtu = (mp->dev->mtu + 255) >> 8; |
| 947 | if (mtu > 63) |
| 948 | mtu = 63; |
| 949 | |
| 950 | bucket_size = (burst + 255) >> 8; |
| 951 | if (bucket_size > 65535) |
| 952 | bucket_size = 65535; |
| 953 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 954 | switch (mp->shared->tx_bw_control) { |
| 955 | case TX_BW_CONTROL_OLD_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 956 | wrlp(mp, TX_BW_RATE, token_rate); |
| 957 | wrlp(mp, TX_BW_MTU, mtu); |
| 958 | wrlp(mp, TX_BW_BURST, bucket_size); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 959 | break; |
| 960 | case TX_BW_CONTROL_NEW_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 961 | wrlp(mp, TX_BW_RATE_MOVED, token_rate); |
| 962 | wrlp(mp, TX_BW_MTU_MOVED, mtu); |
| 963 | wrlp(mp, TX_BW_BURST_MOVED, bucket_size); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 964 | break; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 965 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 966 | } |
| 967 | |
| 968 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) |
| 969 | { |
| 970 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 971 | int token_rate; |
| 972 | int bucket_size; |
| 973 | |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 974 | token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 975 | if (token_rate > 1023) |
| 976 | token_rate = 1023; |
| 977 | |
| 978 | bucket_size = (burst + 255) >> 8; |
| 979 | if (bucket_size > 65535) |
| 980 | bucket_size = 65535; |
| 981 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 982 | wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14); |
| 983 | wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 984 | } |
| 985 | |
| 986 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) |
| 987 | { |
| 988 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
| 989 | int off; |
| 990 | u32 val; |
| 991 | |
| 992 | /* |
| 993 | * Turn on fixed priority mode. |
| 994 | */ |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 995 | off = 0; |
| 996 | switch (mp->shared->tx_bw_control) { |
| 997 | case TX_BW_CONTROL_OLD_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 998 | off = TXQ_FIX_PRIO_CONF; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 999 | break; |
| 1000 | case TX_BW_CONTROL_NEW_LAYOUT: |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1001 | off = TXQ_FIX_PRIO_CONF_MOVED; |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1002 | break; |
| 1003 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1004 | |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1005 | if (off) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1006 | val = rdlp(mp, off); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1007 | val |= 1 << txq->index; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1008 | wrlp(mp, off, val); |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 1009 | } |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1010 | } |
| 1011 | |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 1012 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1013 | /* mii management interface *************************************************/ |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 1014 | static void mv643xx_adjust_pscr(struct mv643xx_eth_private *mp) |
| 1015 | { |
| 1016 | u32 pscr = rdlp(mp, PORT_SERIAL_CONTROL); |
| 1017 | u32 autoneg_disable = FORCE_LINK_PASS | |
| 1018 | DISABLE_AUTO_NEG_SPEED_GMII | |
| 1019 | DISABLE_AUTO_NEG_FOR_FLOW_CTRL | |
| 1020 | DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 1021 | |
| 1022 | if (mp->phy->autoneg == AUTONEG_ENABLE) { |
| 1023 | /* enable auto negotiation */ |
| 1024 | pscr &= ~autoneg_disable; |
| 1025 | goto out_write; |
| 1026 | } |
| 1027 | |
| 1028 | pscr |= autoneg_disable; |
| 1029 | |
| 1030 | if (mp->phy->speed == SPEED_1000) { |
| 1031 | /* force gigabit, half duplex not supported */ |
| 1032 | pscr |= SET_GMII_SPEED_TO_1000; |
| 1033 | pscr |= SET_FULL_DUPLEX_MODE; |
| 1034 | goto out_write; |
| 1035 | } |
| 1036 | |
| 1037 | pscr &= ~SET_GMII_SPEED_TO_1000; |
| 1038 | |
| 1039 | if (mp->phy->speed == SPEED_100) |
| 1040 | pscr |= SET_MII_SPEED_TO_100; |
| 1041 | else |
| 1042 | pscr &= ~SET_MII_SPEED_TO_100; |
| 1043 | |
| 1044 | if (mp->phy->duplex == DUPLEX_FULL) |
| 1045 | pscr |= SET_FULL_DUPLEX_MODE; |
| 1046 | else |
| 1047 | pscr &= ~SET_FULL_DUPLEX_MODE; |
| 1048 | |
| 1049 | out_write: |
| 1050 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
| 1051 | } |
| 1052 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 1053 | /* statistics ***************************************************************/ |
| 1054 | static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev) |
| 1055 | { |
| 1056 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1057 | struct net_device_stats *stats = &dev->stats; |
| 1058 | unsigned long tx_packets = 0; |
| 1059 | unsigned long tx_bytes = 0; |
| 1060 | unsigned long tx_dropped = 0; |
| 1061 | int i; |
| 1062 | |
| 1063 | for (i = 0; i < mp->txq_count; i++) { |
| 1064 | struct tx_queue *txq = mp->txq + i; |
| 1065 | |
| 1066 | tx_packets += txq->tx_packets; |
| 1067 | tx_bytes += txq->tx_bytes; |
| 1068 | tx_dropped += txq->tx_dropped; |
| 1069 | } |
| 1070 | |
| 1071 | stats->tx_packets = tx_packets; |
| 1072 | stats->tx_bytes = tx_bytes; |
| 1073 | stats->tx_dropped = tx_dropped; |
| 1074 | |
| 1075 | return stats; |
| 1076 | } |
| 1077 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1078 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1079 | { |
Lennert Buytenhek | 3cb4667 | 2008-06-01 01:03:23 +0200 | [diff] [blame] | 1080 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1081 | } |
| 1082 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1083 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
| 1084 | { |
| 1085 | int i; |
| 1086 | |
| 1087 | for (i = 0; i < 0x80; i += 4) |
| 1088 | mib_read(mp, i); |
Paulius Zaleckas | 302476c | 2012-01-23 01:16:35 +0000 | [diff] [blame] | 1089 | |
| 1090 | /* Clear non MIB hw counters also */ |
| 1091 | rdlp(mp, RX_DISCARD_FRAME_CNT); |
| 1092 | rdlp(mp, RX_OVERRUN_FRAME_CNT); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1093 | } |
| 1094 | |
| 1095 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
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 | struct mib_counters *p = &mp->mib_counters; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1098 | |
Sebastian Siewior | 57e8f26 | 2009-02-16 11:28:15 +0000 | [diff] [blame] | 1099 | spin_lock_bh(&mp->mib_counters_lock); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1100 | p->good_octets_received += mib_read(mp, 0x00); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1101 | p->bad_octets_received += mib_read(mp, 0x08); |
| 1102 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); |
| 1103 | p->good_frames_received += mib_read(mp, 0x10); |
| 1104 | p->bad_frames_received += mib_read(mp, 0x14); |
| 1105 | p->broadcast_frames_received += mib_read(mp, 0x18); |
| 1106 | p->multicast_frames_received += mib_read(mp, 0x1c); |
| 1107 | p->frames_64_octets += mib_read(mp, 0x20); |
| 1108 | p->frames_65_to_127_octets += mib_read(mp, 0x24); |
| 1109 | p->frames_128_to_255_octets += mib_read(mp, 0x28); |
| 1110 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); |
| 1111 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); |
| 1112 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); |
| 1113 | p->good_octets_sent += mib_read(mp, 0x38); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1114 | p->good_frames_sent += mib_read(mp, 0x40); |
| 1115 | p->excessive_collision += mib_read(mp, 0x44); |
| 1116 | p->multicast_frames_sent += mib_read(mp, 0x48); |
| 1117 | p->broadcast_frames_sent += mib_read(mp, 0x4c); |
| 1118 | p->unrec_mac_control_received += mib_read(mp, 0x50); |
| 1119 | p->fc_sent += mib_read(mp, 0x54); |
| 1120 | p->good_fc_received += mib_read(mp, 0x58); |
| 1121 | p->bad_fc_received += mib_read(mp, 0x5c); |
| 1122 | p->undersize_received += mib_read(mp, 0x60); |
| 1123 | p->fragments_received += mib_read(mp, 0x64); |
| 1124 | p->oversize_received += mib_read(mp, 0x68); |
| 1125 | p->jabber_received += mib_read(mp, 0x6c); |
| 1126 | p->mac_receive_error += mib_read(mp, 0x70); |
| 1127 | p->bad_crc_event += mib_read(mp, 0x74); |
| 1128 | p->collision += mib_read(mp, 0x78); |
| 1129 | p->late_collision += mib_read(mp, 0x7c); |
Paulius Zaleckas | 302476c | 2012-01-23 01:16:35 +0000 | [diff] [blame] | 1130 | /* Non MIB hardware counters */ |
| 1131 | p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT); |
| 1132 | p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT); |
Sebastian Siewior | 57e8f26 | 2009-02-16 11:28:15 +0000 | [diff] [blame] | 1133 | spin_unlock_bh(&mp->mib_counters_lock); |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 1134 | |
| 1135 | mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); |
| 1136 | } |
| 1137 | |
| 1138 | static void mib_counters_timer_wrapper(unsigned long _mp) |
| 1139 | { |
| 1140 | struct mv643xx_eth_private *mp = (void *)_mp; |
| 1141 | |
| 1142 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1146 | /* interrupt coalescing *****************************************************/ |
| 1147 | /* |
| 1148 | * Hardware coalescing parameters are set in units of 64 t_clk |
| 1149 | * cycles. I.e.: |
| 1150 | * |
| 1151 | * coal_delay_in_usec = 64000000 * register_value / t_clk_rate |
| 1152 | * |
| 1153 | * register_value = coal_delay_in_usec * t_clk_rate / 64000000 |
| 1154 | * |
| 1155 | * In the ->set*() methods, we round the computed register value |
| 1156 | * to the nearest integer. |
| 1157 | */ |
| 1158 | static unsigned int get_rx_coal(struct mv643xx_eth_private *mp) |
| 1159 | { |
| 1160 | u32 val = rdlp(mp, SDMA_CONFIG); |
| 1161 | u64 temp; |
| 1162 | |
| 1163 | if (mp->shared->extended_rx_coal_limit) |
| 1164 | temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7); |
| 1165 | else |
| 1166 | temp = (val & 0x003fff00) >> 8; |
| 1167 | |
| 1168 | temp *= 64000000; |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 1169 | do_div(temp, mp->t_clk); |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1170 | |
| 1171 | return (unsigned int)temp; |
| 1172 | } |
| 1173 | |
| 1174 | static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec) |
| 1175 | { |
| 1176 | u64 temp; |
| 1177 | u32 val; |
| 1178 | |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 1179 | temp = (u64)usec * mp->t_clk; |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1180 | temp += 31999999; |
| 1181 | do_div(temp, 64000000); |
| 1182 | |
| 1183 | val = rdlp(mp, SDMA_CONFIG); |
| 1184 | if (mp->shared->extended_rx_coal_limit) { |
| 1185 | if (temp > 0xffff) |
| 1186 | temp = 0xffff; |
| 1187 | val &= ~0x023fff80; |
| 1188 | val |= (temp & 0x8000) << 10; |
| 1189 | val |= (temp & 0x7fff) << 7; |
| 1190 | } else { |
| 1191 | if (temp > 0x3fff) |
| 1192 | temp = 0x3fff; |
| 1193 | val &= ~0x003fff00; |
| 1194 | val |= (temp & 0x3fff) << 8; |
| 1195 | } |
| 1196 | wrlp(mp, SDMA_CONFIG, val); |
| 1197 | } |
| 1198 | |
| 1199 | static unsigned int get_tx_coal(struct mv643xx_eth_private *mp) |
| 1200 | { |
| 1201 | u64 temp; |
| 1202 | |
| 1203 | temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4; |
| 1204 | temp *= 64000000; |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 1205 | do_div(temp, mp->t_clk); |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1206 | |
| 1207 | return (unsigned int)temp; |
| 1208 | } |
| 1209 | |
| 1210 | static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec) |
| 1211 | { |
| 1212 | u64 temp; |
| 1213 | |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 1214 | temp = (u64)usec * mp->t_clk; |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1215 | temp += 31999999; |
| 1216 | do_div(temp, 64000000); |
| 1217 | |
| 1218 | if (temp > 0x3fff) |
| 1219 | temp = 0x3fff; |
| 1220 | |
| 1221 | wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4); |
| 1222 | } |
| 1223 | |
| 1224 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1225 | /* ethtool ******************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1226 | struct mv643xx_eth_stats { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1227 | char stat_string[ETH_GSTRING_LEN]; |
| 1228 | int sizeof_stat; |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1229 | int netdev_off; |
| 1230 | int mp_off; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1231 | }; |
| 1232 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1233 | #define SSTAT(m) \ |
| 1234 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ |
| 1235 | offsetof(struct net_device, stats.m), -1 } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1236 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1237 | #define MIBSTAT(m) \ |
| 1238 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ |
| 1239 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } |
| 1240 | |
| 1241 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { |
| 1242 | SSTAT(rx_packets), |
| 1243 | SSTAT(tx_packets), |
| 1244 | SSTAT(rx_bytes), |
| 1245 | SSTAT(tx_bytes), |
| 1246 | SSTAT(rx_errors), |
| 1247 | SSTAT(tx_errors), |
| 1248 | SSTAT(rx_dropped), |
| 1249 | SSTAT(tx_dropped), |
| 1250 | MIBSTAT(good_octets_received), |
| 1251 | MIBSTAT(bad_octets_received), |
| 1252 | MIBSTAT(internal_mac_transmit_err), |
| 1253 | MIBSTAT(good_frames_received), |
| 1254 | MIBSTAT(bad_frames_received), |
| 1255 | MIBSTAT(broadcast_frames_received), |
| 1256 | MIBSTAT(multicast_frames_received), |
| 1257 | MIBSTAT(frames_64_octets), |
| 1258 | MIBSTAT(frames_65_to_127_octets), |
| 1259 | MIBSTAT(frames_128_to_255_octets), |
| 1260 | MIBSTAT(frames_256_to_511_octets), |
| 1261 | MIBSTAT(frames_512_to_1023_octets), |
| 1262 | MIBSTAT(frames_1024_to_max_octets), |
| 1263 | MIBSTAT(good_octets_sent), |
| 1264 | MIBSTAT(good_frames_sent), |
| 1265 | MIBSTAT(excessive_collision), |
| 1266 | MIBSTAT(multicast_frames_sent), |
| 1267 | MIBSTAT(broadcast_frames_sent), |
| 1268 | MIBSTAT(unrec_mac_control_received), |
| 1269 | MIBSTAT(fc_sent), |
| 1270 | MIBSTAT(good_fc_received), |
| 1271 | MIBSTAT(bad_fc_received), |
| 1272 | MIBSTAT(undersize_received), |
| 1273 | MIBSTAT(fragments_received), |
| 1274 | MIBSTAT(oversize_received), |
| 1275 | MIBSTAT(jabber_received), |
| 1276 | MIBSTAT(mac_receive_error), |
| 1277 | MIBSTAT(bad_crc_event), |
| 1278 | MIBSTAT(collision), |
| 1279 | MIBSTAT(late_collision), |
Paulius Zaleckas | 302476c | 2012-01-23 01:16:35 +0000 | [diff] [blame] | 1280 | MIBSTAT(rx_discard), |
| 1281 | MIBSTAT(rx_overrun), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1282 | }; |
| 1283 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1284 | static int |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1285 | mv643xx_eth_get_settings_phy(struct mv643xx_eth_private *mp, |
| 1286 | struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1287 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1288 | int err; |
| 1289 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 1290 | err = phy_read_status(mp->phy); |
| 1291 | if (err == 0) |
| 1292 | err = phy_ethtool_gset(mp->phy, cmd); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1293 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1294 | /* |
| 1295 | * The MAC does not support 1000baseT_Half. |
| 1296 | */ |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1297 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
| 1298 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1299 | |
| 1300 | return err; |
| 1301 | } |
| 1302 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1303 | static int |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1304 | mv643xx_eth_get_settings_phyless(struct mv643xx_eth_private *mp, |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1305 | struct ethtool_cmd *cmd) |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1306 | { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1307 | u32 port_status; |
| 1308 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1309 | port_status = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1310 | |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1311 | cmd->supported = SUPPORTED_MII; |
| 1312 | cmd->advertising = ADVERTISED_MII; |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1313 | switch (port_status & PORT_SPEED_MASK) { |
| 1314 | case PORT_SPEED_10: |
David Decotigny | 7073949 | 2011-04-27 18:32:40 +0000 | [diff] [blame] | 1315 | ethtool_cmd_speed_set(cmd, SPEED_10); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1316 | break; |
| 1317 | case PORT_SPEED_100: |
David Decotigny | 7073949 | 2011-04-27 18:32:40 +0000 | [diff] [blame] | 1318 | ethtool_cmd_speed_set(cmd, SPEED_100); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1319 | break; |
| 1320 | case PORT_SPEED_1000: |
David Decotigny | 7073949 | 2011-04-27 18:32:40 +0000 | [diff] [blame] | 1321 | ethtool_cmd_speed_set(cmd, SPEED_1000); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 1322 | break; |
| 1323 | default: |
| 1324 | cmd->speed = -1; |
| 1325 | break; |
| 1326 | } |
| 1327 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1328 | cmd->port = PORT_MII; |
| 1329 | cmd->phy_address = 0; |
| 1330 | cmd->transceiver = XCVR_INTERNAL; |
| 1331 | cmd->autoneg = AUTONEG_DISABLE; |
| 1332 | cmd->maxtxpkt = 1; |
| 1333 | cmd->maxrxpkt = 1; |
| 1334 | |
| 1335 | return 0; |
| 1336 | } |
| 1337 | |
Michael Stapelberg | 3871c38 | 2013-03-11 13:56:45 +0000 | [diff] [blame] | 1338 | static void |
| 1339 | mv643xx_eth_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1340 | { |
| 1341 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1342 | wol->supported = 0; |
| 1343 | wol->wolopts = 0; |
| 1344 | if (mp->phy) |
| 1345 | phy_ethtool_get_wol(mp->phy, wol); |
| 1346 | } |
| 1347 | |
| 1348 | static int |
| 1349 | mv643xx_eth_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1350 | { |
| 1351 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1352 | int err; |
| 1353 | |
| 1354 | if (mp->phy == NULL) |
| 1355 | return -EOPNOTSUPP; |
| 1356 | |
| 1357 | err = phy_ethtool_set_wol(mp->phy, wol); |
| 1358 | /* Given that mv643xx_eth works without the marvell-specific PHY driver, |
| 1359 | * this debugging hint is useful to have. |
| 1360 | */ |
| 1361 | if (err == -EOPNOTSUPP) |
| 1362 | netdev_info(dev, "The PHY does not support set_wol, was CONFIG_MARVELL_PHY enabled?\n"); |
| 1363 | return err; |
| 1364 | } |
| 1365 | |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1366 | static int |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1367 | mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1368 | { |
| 1369 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1370 | |
| 1371 | if (mp->phy != NULL) |
| 1372 | return mv643xx_eth_get_settings_phy(mp, cmd); |
| 1373 | else |
| 1374 | return mv643xx_eth_get_settings_phyless(mp, cmd); |
| 1375 | } |
| 1376 | |
| 1377 | static int |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 1378 | mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1379 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1380 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 1381 | int ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1382 | |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1383 | if (mp->phy == NULL) |
| 1384 | return -EINVAL; |
| 1385 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1386 | /* |
| 1387 | * The MAC does not support 1000baseT_Half. |
| 1388 | */ |
| 1389 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; |
| 1390 | |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 1391 | ret = phy_ethtool_sset(mp->phy, cmd); |
| 1392 | if (!ret) |
| 1393 | mv643xx_adjust_pscr(mp); |
| 1394 | return ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1395 | } |
| 1396 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1397 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
| 1398 | struct ethtool_drvinfo *drvinfo) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1399 | { |
Axel Lin | 6f39da2 | 2011-11-24 00:41:55 -0500 | [diff] [blame] | 1400 | strlcpy(drvinfo->driver, mv643xx_eth_driver_name, |
| 1401 | sizeof(drvinfo->driver)); |
Rick Jones | 68aad78 | 2011-11-07 13:29:27 +0000 | [diff] [blame] | 1402 | strlcpy(drvinfo->version, mv643xx_eth_driver_version, |
Axel Lin | 6f39da2 | 2011-11-24 00:41:55 -0500 | [diff] [blame] | 1403 | sizeof(drvinfo->version)); |
| 1404 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
| 1405 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1406 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1407 | } |
| 1408 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1409 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1410 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1411 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1412 | |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1413 | if (mp->phy == NULL) |
| 1414 | return -EINVAL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1415 | |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 1416 | return genphy_restart_aneg(mp->phy); |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 1417 | } |
| 1418 | |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1419 | static int |
| 1420 | mv643xx_eth_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) |
| 1421 | { |
| 1422 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1423 | |
| 1424 | ec->rx_coalesce_usecs = get_rx_coal(mp); |
| 1425 | ec->tx_coalesce_usecs = get_tx_coal(mp); |
| 1426 | |
| 1427 | return 0; |
| 1428 | } |
| 1429 | |
| 1430 | static int |
| 1431 | mv643xx_eth_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) |
| 1432 | { |
| 1433 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1434 | |
| 1435 | set_rx_coal(mp, ec->rx_coalesce_usecs); |
| 1436 | set_tx_coal(mp, ec->tx_coalesce_usecs); |
| 1437 | |
| 1438 | return 0; |
| 1439 | } |
| 1440 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1441 | static void |
| 1442 | mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er) |
| 1443 | { |
| 1444 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1445 | |
| 1446 | er->rx_max_pending = 4096; |
| 1447 | er->tx_max_pending = 4096; |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1448 | |
| 1449 | er->rx_pending = mp->rx_ring_size; |
| 1450 | er->tx_pending = mp->tx_ring_size; |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1451 | } |
| 1452 | |
| 1453 | static int |
| 1454 | mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er) |
| 1455 | { |
| 1456 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1457 | |
| 1458 | if (er->rx_mini_pending || er->rx_jumbo_pending) |
| 1459 | return -EINVAL; |
| 1460 | |
| 1461 | mp->rx_ring_size = er->rx_pending < 4096 ? er->rx_pending : 4096; |
| 1462 | mp->tx_ring_size = er->tx_pending < 4096 ? er->tx_pending : 4096; |
| 1463 | |
| 1464 | if (netif_running(dev)) { |
| 1465 | mv643xx_eth_stop(dev); |
| 1466 | if (mv643xx_eth_open(dev)) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1467 | netdev_err(dev, |
| 1468 | "fatal error on re-opening device after ring param change\n"); |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1469 | return -ENOMEM; |
| 1470 | } |
| 1471 | } |
| 1472 | |
| 1473 | return 0; |
| 1474 | } |
| 1475 | |
Lennert Buytenhek | d888b37 | 2009-02-12 14:07:56 +0000 | [diff] [blame] | 1476 | |
| 1477 | static int |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 1478 | mv643xx_eth_set_features(struct net_device *dev, netdev_features_t features) |
Lennert Buytenhek | d888b37 | 2009-02-12 14:07:56 +0000 | [diff] [blame] | 1479 | { |
| 1480 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Michał Mirosław | 3ad9b35 | 2011-11-16 14:05:33 +0000 | [diff] [blame] | 1481 | bool rx_csum = features & NETIF_F_RXCSUM; |
Lennert Buytenhek | d888b37 | 2009-02-12 14:07:56 +0000 | [diff] [blame] | 1482 | |
| 1483 | wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000); |
| 1484 | |
| 1485 | return 0; |
| 1486 | } |
| 1487 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1488 | static void mv643xx_eth_get_strings(struct net_device *dev, |
| 1489 | uint32_t stringset, uint8_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1490 | { |
| 1491 | int i; |
| 1492 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1493 | if (stringset == ETH_SS_STATS) { |
| 1494 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1495 | memcpy(data + i * ETH_GSTRING_LEN, |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1496 | mv643xx_eth_stats[i].stat_string, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1497 | ETH_GSTRING_LEN); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1498 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1499 | } |
| 1500 | } |
| 1501 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1502 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
| 1503 | struct ethtool_stats *stats, |
| 1504 | uint64_t *data) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1505 | { |
Lennert Buytenhek | b987384 | 2008-08-24 05:59:16 +0200 | [diff] [blame] | 1506 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1507 | int i; |
| 1508 | |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 1509 | mv643xx_eth_get_stats(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1510 | mib_counters_update(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1511 | |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1512 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
| 1513 | const struct mv643xx_eth_stats *stat; |
| 1514 | void *p; |
| 1515 | |
| 1516 | stat = mv643xx_eth_stats + i; |
| 1517 | |
| 1518 | if (stat->netdev_off >= 0) |
| 1519 | p = ((void *)mp->dev) + stat->netdev_off; |
| 1520 | else |
| 1521 | p = ((void *)mp) + stat->mp_off; |
| 1522 | |
| 1523 | data[i] = (stat->sizeof_stat == 8) ? |
| 1524 | *(uint64_t *)p : *(uint32_t *)p; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1525 | } |
| 1526 | } |
| 1527 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1528 | 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] | 1529 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1530 | if (sset == ETH_SS_STATS) |
Lennert Buytenhek | 1682005 | 2008-06-01 11:40:29 +0200 | [diff] [blame] | 1531 | return ARRAY_SIZE(mv643xx_eth_stats); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1532 | |
| 1533 | return -EOPNOTSUPP; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1534 | } |
| 1535 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1536 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1537 | .get_settings = mv643xx_eth_get_settings, |
| 1538 | .set_settings = mv643xx_eth_set_settings, |
| 1539 | .get_drvinfo = mv643xx_eth_get_drvinfo, |
| 1540 | .nway_reset = mv643xx_eth_nway_reset, |
Ben Hutchings | ed4ba4b | 2010-12-09 12:10:25 +0000 | [diff] [blame] | 1541 | .get_link = ethtool_op_get_link, |
Lennert Buytenhek | 3e50803 | 2009-02-12 14:07:09 +0000 | [diff] [blame] | 1542 | .get_coalesce = mv643xx_eth_get_coalesce, |
| 1543 | .set_coalesce = mv643xx_eth_set_coalesce, |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1544 | .get_ringparam = mv643xx_eth_get_ringparam, |
| 1545 | .set_ringparam = mv643xx_eth_set_ringparam, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1546 | .get_strings = mv643xx_eth_get_strings, |
| 1547 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 1548 | .get_sset_count = mv643xx_eth_get_sset_count, |
Richard Cochran | ebad0a8 | 2012-04-03 22:59:32 +0000 | [diff] [blame] | 1549 | .get_ts_info = ethtool_op_get_ts_info, |
Michael Stapelberg | 3871c38 | 2013-03-11 13:56:45 +0000 | [diff] [blame] | 1550 | .get_wol = mv643xx_eth_get_wol, |
| 1551 | .set_wol = mv643xx_eth_set_wol, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1552 | }; |
| 1553 | |
| 1554 | |
| 1555 | /* address handling *********************************************************/ |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1556 | 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] | 1557 | { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1558 | unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH); |
| 1559 | unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1560 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1561 | addr[0] = (mac_h >> 24) & 0xff; |
| 1562 | addr[1] = (mac_h >> 16) & 0xff; |
| 1563 | addr[2] = (mac_h >> 8) & 0xff; |
| 1564 | addr[3] = mac_h & 0xff; |
| 1565 | addr[4] = (mac_l >> 8) & 0xff; |
| 1566 | addr[5] = mac_l & 0xff; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1567 | } |
| 1568 | |
Lennert Buytenhek | 5daffe9 | 2008-06-01 02:52:41 +0200 | [diff] [blame] | 1569 | 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] | 1570 | { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1571 | wrlp(mp, MAC_ADDR_HIGH, |
| 1572 | (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]); |
| 1573 | wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1574 | } |
| 1575 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1576 | static u32 uc_addr_filter_mask(struct net_device *dev) |
| 1577 | { |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 1578 | struct netdev_hw_addr *ha; |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1579 | u32 nibbles; |
| 1580 | |
| 1581 | if (dev->flags & IFF_PROMISC) |
| 1582 | return 0; |
| 1583 | |
| 1584 | nibbles = 1 << (dev->dev_addr[5] & 0x0f); |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 1585 | netdev_for_each_uc_addr(ha, dev) { |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 1586 | if (memcmp(dev->dev_addr, ha->addr, 5)) |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1587 | return 0; |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 1588 | if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0) |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1589 | return 0; |
| 1590 | |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 1591 | nibbles |= 1 << (ha->addr[5] & 0x0f); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | return nibbles; |
| 1595 | } |
| 1596 | |
| 1597 | static void mv643xx_eth_program_unicast_filter(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1598 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1599 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1600 | u32 port_config; |
| 1601 | u32 nibbles; |
| 1602 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1603 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1604 | uc_addr_set(mp, dev->dev_addr); |
| 1605 | |
Prabhanjan Sarnaik | 6877f54 | 2009-06-18 11:35:02 +0000 | [diff] [blame] | 1606 | port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE; |
| 1607 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1608 | nibbles = uc_addr_filter_mask(dev); |
| 1609 | if (!nibbles) { |
| 1610 | port_config |= UNICAST_PROMISCUOUS_MODE; |
Prabhanjan Sarnaik | 6877f54 | 2009-06-18 11:35:02 +0000 | [diff] [blame] | 1611 | nibbles = 0xffff; |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1612 | } |
| 1613 | |
| 1614 | for (i = 0; i < 16; i += 4) { |
| 1615 | int off = UNICAST_TABLE(mp->port_num) + i; |
| 1616 | u32 v; |
| 1617 | |
| 1618 | v = 0; |
| 1619 | if (nibbles & 1) |
| 1620 | v |= 0x00000001; |
| 1621 | if (nibbles & 2) |
| 1622 | v |= 0x00000100; |
| 1623 | if (nibbles & 4) |
| 1624 | v |= 0x00010000; |
| 1625 | if (nibbles & 8) |
| 1626 | v |= 0x01000000; |
| 1627 | nibbles >>= 4; |
| 1628 | |
| 1629 | wrl(mp, off, v); |
| 1630 | } |
| 1631 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1632 | wrlp(mp, PORT_CONFIG, port_config); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1633 | } |
| 1634 | |
Lennert Buytenhek | 6987656 | 2008-06-01 11:43:32 +0200 | [diff] [blame] | 1635 | static int addr_crc(unsigned char *addr) |
| 1636 | { |
| 1637 | int crc = 0; |
| 1638 | int i; |
| 1639 | |
| 1640 | for (i = 0; i < 6; i++) { |
| 1641 | int j; |
| 1642 | |
| 1643 | crc = (crc ^ addr[i]) << 8; |
| 1644 | for (j = 7; j >= 0; j--) { |
| 1645 | if (crc & (0x100 << j)) |
| 1646 | crc ^= 0x107 << j; |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | return crc; |
| 1651 | } |
| 1652 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1653 | static void mv643xx_eth_program_multicast_filter(struct net_device *dev) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1654 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1655 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1656 | u32 *mc_spec; |
| 1657 | u32 *mc_other; |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 1658 | struct netdev_hw_addr *ha; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1659 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1660 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1661 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1662 | int port_num; |
| 1663 | u32 accept; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1664 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1665 | oom: |
| 1666 | port_num = mp->port_num; |
| 1667 | accept = 0x01010101; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1668 | for (i = 0; i < 0x100; i += 4) { |
| 1669 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); |
| 1670 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1671 | } |
| 1672 | return; |
| 1673 | } |
| 1674 | |
Sebastian Siewior | 82a5bd6 | 2009-02-14 23:26:18 +0000 | [diff] [blame] | 1675 | mc_spec = kmalloc(0x200, GFP_ATOMIC); |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1676 | if (mc_spec == NULL) |
| 1677 | goto oom; |
| 1678 | mc_other = mc_spec + (0x100 >> 2); |
| 1679 | |
| 1680 | memset(mc_spec, 0, 0x100); |
| 1681 | memset(mc_other, 0, 0x100); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1682 | |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 1683 | netdev_for_each_mc_addr(ha, dev) { |
| 1684 | u8 *a = ha->addr; |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1685 | u32 *table; |
| 1686 | int entry; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1687 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1688 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1689 | table = mc_spec; |
| 1690 | entry = a[5]; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1691 | } else { |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1692 | table = mc_other; |
| 1693 | entry = addr_crc(a); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1694 | } |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1695 | |
Lennert Buytenhek | 2b44833 | 2009-01-19 17:17:18 -0800 | [diff] [blame] | 1696 | table[entry >> 2] |= 1 << (8 * (entry & 3)); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 1697 | } |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1698 | |
| 1699 | for (i = 0; i < 0x100; i += 4) { |
| 1700 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, mc_spec[i >> 2]); |
| 1701 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, mc_other[i >> 2]); |
| 1702 | } |
| 1703 | |
| 1704 | kfree(mc_spec); |
| 1705 | } |
| 1706 | |
| 1707 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
| 1708 | { |
| 1709 | mv643xx_eth_program_unicast_filter(dev); |
| 1710 | mv643xx_eth_program_multicast_filter(dev); |
| 1711 | } |
| 1712 | |
| 1713 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
| 1714 | { |
| 1715 | struct sockaddr *sa = addr; |
| 1716 | |
Denis Kirjanov | a29ec08 | 2009-12-08 20:36:00 -0800 | [diff] [blame] | 1717 | if (!is_valid_ether_addr(sa->sa_data)) |
Danny Kukawka | 504f9b5 | 2012-02-21 02:07:49 +0000 | [diff] [blame] | 1718 | return -EADDRNOTAVAIL; |
Denis Kirjanov | a29ec08 | 2009-12-08 20:36:00 -0800 | [diff] [blame] | 1719 | |
Lennert Buytenhek | 66e63ff | 2008-11-20 03:58:27 -0800 | [diff] [blame] | 1720 | memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); |
| 1721 | |
| 1722 | netif_addr_lock_bh(dev); |
| 1723 | mv643xx_eth_program_unicast_filter(dev); |
| 1724 | netif_addr_unlock_bh(dev); |
| 1725 | |
| 1726 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1727 | } |
| 1728 | |
| 1729 | |
| 1730 | /* rx/tx queue initialisation ***********************************************/ |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1731 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1732 | { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1733 | struct rx_queue *rxq = mp->rxq + index; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1734 | struct rx_desc *rx_desc; |
| 1735 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1736 | int i; |
| 1737 | |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1738 | rxq->index = index; |
| 1739 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1740 | rxq->rx_ring_size = mp->rx_ring_size; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1741 | |
| 1742 | rxq->rx_desc_count = 0; |
| 1743 | rxq->rx_curr_desc = 0; |
| 1744 | rxq->rx_used_desc = 0; |
| 1745 | |
| 1746 | size = rxq->rx_ring_size * sizeof(struct rx_desc); |
| 1747 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1748 | if (index == 0 && size <= mp->rx_desc_sram_size) { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1749 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
| 1750 | mp->rx_desc_sram_size); |
| 1751 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; |
| 1752 | } else { |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 1753 | rxq->rx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, |
| 1754 | size, &rxq->rx_desc_dma, |
| 1755 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1756 | } |
| 1757 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1758 | if (rxq->rx_desc_area == NULL) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1759 | netdev_err(mp->dev, |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1760 | "can't allocate rx ring (%d bytes)\n", size); |
| 1761 | goto out; |
| 1762 | } |
| 1763 | memset(rxq->rx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1764 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1765 | rxq->rx_desc_area_size = size; |
Lubomir Rintel | 9fa8e98 | 2013-06-18 19:32:38 +0200 | [diff] [blame] | 1766 | rxq->rx_skb = kcalloc(rxq->rx_ring_size, sizeof(*rxq->rx_skb), |
Joe Perches | b2adaca | 2013-02-03 17:43:58 +0000 | [diff] [blame] | 1767 | GFP_KERNEL); |
| 1768 | if (rxq->rx_skb == NULL) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1769 | goto out_free; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1770 | |
Joe Perches | 6469933 | 2012-06-04 12:44:16 +0000 | [diff] [blame] | 1771 | rx_desc = rxq->rx_desc_area; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1772 | for (i = 0; i < rxq->rx_ring_size; i++) { |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1773 | int nexti; |
| 1774 | |
| 1775 | nexti = i + 1; |
| 1776 | if (nexti == rxq->rx_ring_size) |
| 1777 | nexti = 0; |
| 1778 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1779 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
| 1780 | nexti * sizeof(struct rx_desc); |
| 1781 | } |
| 1782 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1783 | return 0; |
| 1784 | |
| 1785 | |
| 1786 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1787 | if (index == 0 && size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1788 | iounmap(rxq->rx_desc_area); |
| 1789 | else |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 1790 | dma_free_coherent(mp->dev->dev.parent, size, |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1791 | rxq->rx_desc_area, |
| 1792 | rxq->rx_desc_dma); |
| 1793 | |
| 1794 | out: |
| 1795 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1796 | } |
| 1797 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1798 | static void rxq_deinit(struct rx_queue *rxq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1799 | { |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1800 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
| 1801 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1802 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1803 | rxq_disable(rxq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1804 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1805 | for (i = 0; i < rxq->rx_ring_size; i++) { |
| 1806 | if (rxq->rx_skb[i]) { |
| 1807 | dev_kfree_skb(rxq->rx_skb[i]); |
| 1808 | rxq->rx_desc_count--; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1809 | } |
| 1810 | } |
| 1811 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1812 | if (rxq->rx_desc_count) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1813 | netdev_err(mp->dev, "error freeing rx ring -- %d skbs stuck\n", |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1814 | rxq->rx_desc_count); |
| 1815 | } |
| 1816 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1817 | if (rxq->index == 0 && |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 1818 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1819 | iounmap(rxq->rx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1820 | else |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 1821 | dma_free_coherent(mp->dev->dev.parent, rxq->rx_desc_area_size, |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 1822 | rxq->rx_desc_area, rxq->rx_desc_dma); |
| 1823 | |
| 1824 | kfree(rxq->rx_skb); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1825 | } |
| 1826 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1827 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1828 | { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1829 | struct tx_queue *txq = mp->txq + index; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1830 | struct tx_desc *tx_desc; |
| 1831 | int size; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1832 | int i; |
| 1833 | |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1834 | txq->index = index; |
| 1835 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 1836 | txq->tx_ring_size = mp->tx_ring_size; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1837 | |
| 1838 | txq->tx_desc_count = 0; |
| 1839 | txq->tx_curr_desc = 0; |
| 1840 | txq->tx_used_desc = 0; |
| 1841 | |
| 1842 | size = txq->tx_ring_size * sizeof(struct tx_desc); |
| 1843 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1844 | if (index == 0 && size <= mp->tx_desc_sram_size) { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1845 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
| 1846 | mp->tx_desc_sram_size); |
| 1847 | txq->tx_desc_dma = mp->tx_desc_sram_addr; |
| 1848 | } else { |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 1849 | txq->tx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, |
| 1850 | size, &txq->tx_desc_dma, |
| 1851 | GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1852 | } |
| 1853 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1854 | if (txq->tx_desc_area == NULL) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1855 | netdev_err(mp->dev, |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1856 | "can't allocate tx ring (%d bytes)\n", size); |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 1857 | return -ENOMEM; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1858 | } |
| 1859 | memset(txq->tx_desc_area, 0, size); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1860 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1861 | txq->tx_desc_area_size = size; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1862 | |
Joe Perches | 6469933 | 2012-06-04 12:44:16 +0000 | [diff] [blame] | 1863 | tx_desc = txq->tx_desc_area; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1864 | for (i = 0; i < txq->tx_ring_size; i++) { |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1865 | struct tx_desc *txd = tx_desc + i; |
Lennert Buytenhek | 9da7874 | 2008-08-23 23:45:28 +0200 | [diff] [blame] | 1866 | int nexti; |
| 1867 | |
| 1868 | nexti = i + 1; |
| 1869 | if (nexti == txq->tx_ring_size) |
| 1870 | nexti = 0; |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 1871 | |
| 1872 | txd->cmd_sts = 0; |
| 1873 | txd->next_desc_ptr = txq->tx_desc_dma + |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1874 | nexti * sizeof(struct tx_desc); |
| 1875 | } |
| 1876 | |
Lennert Buytenhek | 99ab08e | 2008-08-28 05:53:18 +0200 | [diff] [blame] | 1877 | skb_queue_head_init(&txq->tx_skb); |
| 1878 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1879 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1880 | } |
| 1881 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1882 | static void txq_deinit(struct tx_queue *txq) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1883 | { |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1884 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1885 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1886 | txq_disable(txq); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1887 | txq_reclaim(txq, txq->tx_ring_size, 1); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1888 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1889 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1890 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1891 | if (txq->index == 0 && |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 1892 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1893 | iounmap(txq->tx_desc_area); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1894 | else |
Gabriel Paubert | eb0519b | 2009-05-17 21:16:47 -0700 | [diff] [blame] | 1895 | dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size, |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 1896 | txq->tx_desc_area, txq->tx_desc_dma); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 1897 | } |
| 1898 | |
| 1899 | |
| 1900 | /* netdev ops and related ***************************************************/ |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1901 | static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp) |
| 1902 | { |
| 1903 | u32 int_cause; |
| 1904 | u32 int_cause_ext; |
| 1905 | |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 1906 | int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1907 | if (int_cause == 0) |
| 1908 | return 0; |
| 1909 | |
| 1910 | int_cause_ext = 0; |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 1911 | if (int_cause & INT_EXT) { |
| 1912 | int_cause &= ~INT_EXT; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1913 | int_cause_ext = rdlp(mp, INT_CAUSE_EXT); |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 1914 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1915 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1916 | if (int_cause) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1917 | wrlp(mp, INT_CAUSE, ~int_cause); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1918 | mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) & |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1919 | ~(rdlp(mp, TXQ_COMMAND) & 0xff); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1920 | mp->work_rx |= (int_cause & INT_RX) >> 2; |
| 1921 | } |
| 1922 | |
| 1923 | int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX; |
| 1924 | if (int_cause_ext) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1925 | wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1926 | if (int_cause_ext & INT_EXT_LINK_PHY) |
| 1927 | mp->work_link = 1; |
| 1928 | mp->work_tx |= int_cause_ext & INT_EXT_TX; |
| 1929 | } |
| 1930 | |
| 1931 | return 1; |
| 1932 | } |
| 1933 | |
| 1934 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) |
| 1935 | { |
| 1936 | struct net_device *dev = (struct net_device *)dev_id; |
| 1937 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 1938 | |
| 1939 | if (unlikely(!mv643xx_eth_collect_events(mp))) |
| 1940 | return IRQ_NONE; |
| 1941 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1942 | wrlp(mp, INT_MASK, 0); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1943 | napi_schedule(&mp->napi); |
| 1944 | |
| 1945 | return IRQ_HANDLED; |
| 1946 | } |
| 1947 | |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1948 | static void handle_link_event(struct mv643xx_eth_private *mp) |
| 1949 | { |
| 1950 | struct net_device *dev = mp->dev; |
| 1951 | u32 port_status; |
| 1952 | int speed; |
| 1953 | int duplex; |
| 1954 | int fc; |
| 1955 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 1956 | port_status = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1957 | if (!(port_status & LINK_UP)) { |
| 1958 | if (netif_carrier_ok(dev)) { |
| 1959 | int i; |
| 1960 | |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1961 | netdev_info(dev, "link down\n"); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1962 | |
| 1963 | netif_carrier_off(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1964 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1965 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1966 | struct tx_queue *txq = mp->txq + i; |
| 1967 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1968 | txq_reclaim(txq, txq->tx_ring_size, 1); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 1969 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1970 | } |
| 1971 | } |
| 1972 | return; |
| 1973 | } |
| 1974 | |
| 1975 | switch (port_status & PORT_SPEED_MASK) { |
| 1976 | case PORT_SPEED_10: |
| 1977 | speed = 10; |
| 1978 | break; |
| 1979 | case PORT_SPEED_100: |
| 1980 | speed = 100; |
| 1981 | break; |
| 1982 | case PORT_SPEED_1000: |
| 1983 | speed = 1000; |
| 1984 | break; |
| 1985 | default: |
| 1986 | speed = -1; |
| 1987 | break; |
| 1988 | } |
| 1989 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; |
| 1990 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; |
| 1991 | |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 1992 | netdev_info(dev, "link up, %d Mb/s, %s duplex, flow control %sabled\n", |
| 1993 | speed, duplex ? "full" : "half", fc ? "en" : "dis"); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1994 | |
Lennert Buytenhek | 4fdeca3 | 2008-08-28 05:39:13 +0200 | [diff] [blame] | 1995 | if (!netif_carrier_ok(dev)) |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1996 | netif_carrier_on(dev); |
Lennert Buytenhek | 2f7eb47 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 1997 | } |
| 1998 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 1999 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2000 | { |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2001 | struct mv643xx_eth_private *mp; |
| 2002 | int work_done; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2003 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2004 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2005 | |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 2006 | if (unlikely(mp->oom)) { |
| 2007 | mp->oom = 0; |
| 2008 | del_timer(&mp->rx_oom); |
| 2009 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2010 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2011 | work_done = 0; |
| 2012 | while (work_done < budget) { |
| 2013 | u8 queue_mask; |
| 2014 | int queue; |
| 2015 | int work_tbd; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2016 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2017 | if (mp->work_link) { |
| 2018 | mp->work_link = 0; |
| 2019 | handle_link_event(mp); |
Lennert Buytenhek | 26ef1f1 | 2009-05-06 03:01:10 +0000 | [diff] [blame] | 2020 | work_done++; |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2021 | continue; |
Lennert Buytenhek | 226bb6b | 2008-06-02 01:47:21 +0200 | [diff] [blame] | 2022 | } |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2023 | |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 2024 | queue_mask = mp->work_tx | mp->work_tx_end | mp->work_rx; |
| 2025 | if (likely(!mp->oom)) |
| 2026 | queue_mask |= mp->work_rx_refill; |
| 2027 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2028 | if (!queue_mask) { |
| 2029 | if (mv643xx_eth_collect_events(mp)) |
| 2030 | continue; |
| 2031 | break; |
| 2032 | } |
| 2033 | |
| 2034 | queue = fls(queue_mask) - 1; |
| 2035 | queue_mask = 1 << queue; |
| 2036 | |
| 2037 | work_tbd = budget - work_done; |
| 2038 | if (work_tbd > 16) |
| 2039 | work_tbd = 16; |
| 2040 | |
| 2041 | if (mp->work_tx_end & queue_mask) { |
| 2042 | txq_kick(mp->txq + queue); |
| 2043 | } else if (mp->work_tx & queue_mask) { |
| 2044 | work_done += txq_reclaim(mp->txq + queue, work_tbd, 0); |
| 2045 | txq_maybe_wake(mp->txq + queue); |
| 2046 | } else if (mp->work_rx & queue_mask) { |
| 2047 | work_done += rxq_process(mp->rxq + queue, work_tbd); |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 2048 | } else if (!mp->oom && (mp->work_rx_refill & queue_mask)) { |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2049 | work_done += rxq_refill(mp->rxq + queue, work_tbd); |
| 2050 | } else { |
| 2051 | BUG(); |
| 2052 | } |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2053 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2054 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2055 | if (work_done < budget) { |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 2056 | if (mp->oom) |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2057 | mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); |
| 2058 | napi_complete(napi); |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2059 | wrlp(mp, INT_MASK, mp->int_mask); |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2060 | } |
| 2061 | |
| 2062 | return work_done; |
| 2063 | } |
| 2064 | |
| 2065 | static inline void oom_timer_wrapper(unsigned long data) |
| 2066 | { |
| 2067 | struct mv643xx_eth_private *mp = (void *)data; |
| 2068 | |
| 2069 | napi_schedule(&mp->napi); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2070 | } |
| 2071 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2072 | static void phy_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2073 | { |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2074 | int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2075 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2076 | data = phy_read(mp->phy, MII_BMCR); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2077 | if (data < 0) |
| 2078 | return; |
| 2079 | |
Lennert Buytenhek | 7f106c1 | 2008-07-15 02:28:47 +0200 | [diff] [blame] | 2080 | data |= BMCR_RESET; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2081 | if (phy_write(mp->phy, MII_BMCR, data) < 0) |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2082 | return; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2083 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2084 | do { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2085 | data = phy_read(mp->phy, MII_BMCR); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2086 | } while (data >= 0 && data & BMCR_RESET); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2087 | } |
| 2088 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2089 | static void port_start(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2090 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2091 | u32 pscr; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2092 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2093 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2094 | /* |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2095 | * Perform PHY reset, if there is a PHY. |
| 2096 | */ |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2097 | if (mp->phy != NULL) { |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2098 | struct ethtool_cmd cmd; |
| 2099 | |
| 2100 | mv643xx_eth_get_settings(mp->dev, &cmd); |
| 2101 | phy_reset(mp); |
| 2102 | mv643xx_eth_set_settings(mp->dev, &cmd); |
| 2103 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2104 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2105 | /* |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2106 | * Configure basic link parameters. |
| 2107 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2108 | pscr = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2109 | |
| 2110 | pscr |= SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2111 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2112 | |
| 2113 | pscr |= DO_NOT_FORCE_LINK_FAIL; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2114 | if (mp->phy == NULL) |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2115 | pscr |= FORCE_LINK_PASS; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2116 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2117 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2118 | /* |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2119 | * Configure TX path and queues. |
| 2120 | */ |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2121 | tx_set_rate(mp, 1000000000, 16777216); |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2122 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2123 | struct tx_queue *txq = mp->txq + i; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2124 | |
Lennert Buytenhek | 6b368f6 | 2008-07-11 19:38:34 +0200 | [diff] [blame] | 2125 | txq_reset_hw_ptr(txq); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2126 | txq_set_rate(txq, 1000000000, 16777216); |
| 2127 | txq_set_fixed_prio_mode(txq); |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2128 | } |
| 2129 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2130 | /* |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 2131 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast |
Lennert Buytenhek | 170e710 | 2008-09-19 02:58:50 +0200 | [diff] [blame] | 2132 | * frames to RX queue #0, and include the pseudo-header when |
| 2133 | * calculating receive checksums. |
Lennert Buytenhek | d9a073e | 2008-06-01 01:22:06 +0200 | [diff] [blame] | 2134 | */ |
David S. Miller | e138f96 | 2011-04-21 15:19:02 -0700 | [diff] [blame] | 2135 | mv643xx_eth_set_features(mp->dev, mp->dev->features); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2136 | |
Lennert Buytenhek | 376489a | 2008-06-01 01:17:44 +0200 | [diff] [blame] | 2137 | /* |
| 2138 | * Treat BPDUs as normal multicasts, and disable partition mode. |
| 2139 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2140 | wrlp(mp, PORT_CONFIG_EXT, 0x00000000); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2141 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2142 | /* |
Lennert Buytenhek | 5a89392 | 2009-03-13 15:48:02 -0700 | [diff] [blame] | 2143 | * Add configured unicast addresses to address filter table. |
| 2144 | */ |
| 2145 | mv643xx_eth_program_unicast_filter(mp->dev); |
| 2146 | |
| 2147 | /* |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2148 | * Enable the receive queues. |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2149 | */ |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2150 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2151 | struct rx_queue *rxq = mp->rxq + i; |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2152 | u32 addr; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2153 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2154 | addr = (u32)rxq->rx_desc_dma; |
| 2155 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2156 | wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2157 | |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2158 | rxq_enable(rxq); |
| 2159 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2160 | } |
| 2161 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2162 | static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp) |
| 2163 | { |
| 2164 | int skb_size; |
| 2165 | |
| 2166 | /* |
| 2167 | * Reserve 2+14 bytes for an ethernet header (the hardware |
| 2168 | * automatically prepends 2 bytes of dummy data to each |
| 2169 | * received packet), 16 bytes for up to four VLAN tags, and |
| 2170 | * 4 bytes for the trailing FCS -- 36 bytes total. |
| 2171 | */ |
| 2172 | skb_size = mp->dev->mtu + 36; |
| 2173 | |
| 2174 | /* |
| 2175 | * Make sure that the skb size is a multiple of 8 bytes, as |
| 2176 | * the lower three bits of the receive descriptor's buffer |
| 2177 | * size field are ignored by the hardware. |
| 2178 | */ |
| 2179 | mp->skb_size = (skb_size + 7) & ~7; |
Lennert Buytenhek | 7fd96ce | 2009-05-06 03:01:22 +0000 | [diff] [blame] | 2180 | |
| 2181 | /* |
| 2182 | * If NET_SKB_PAD is smaller than a cache line, |
| 2183 | * netdev_alloc_skb() will cause skb->data to be misaligned |
| 2184 | * to a cache line boundary. If this is the case, include |
| 2185 | * some extra space to allow re-aligning the data area. |
| 2186 | */ |
| 2187 | mp->skb_size += SKB_DMA_REALIGN; |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2188 | } |
| 2189 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2190 | static int mv643xx_eth_open(struct net_device *dev) |
| 2191 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2192 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2193 | int err; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2194 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2195 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2196 | wrlp(mp, INT_CAUSE, 0); |
| 2197 | wrlp(mp, INT_CAUSE_EXT, 0); |
| 2198 | rdlp(mp, INT_CAUSE_EXT); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2199 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2200 | err = request_irq(dev->irq, mv643xx_eth_irq, |
Lennert Buytenhek | 2a1867a | 2008-08-23 23:43:38 +0200 | [diff] [blame] | 2201 | IRQF_SHARED, dev->name, dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2202 | if (err) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2203 | netdev_err(dev, "can't assign irq\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2204 | return -EAGAIN; |
| 2205 | } |
| 2206 | |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2207 | mv643xx_eth_recalc_skb_size(mp); |
| 2208 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2209 | napi_enable(&mp->napi); |
| 2210 | |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2211 | mp->int_mask = INT_EXT; |
| 2212 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2213 | for (i = 0; i < mp->rxq_count; i++) { |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2214 | err = rxq_init(mp, i); |
| 2215 | if (err) { |
| 2216 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2217 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2218 | goto out; |
| 2219 | } |
| 2220 | |
Lennert Buytenhek | 1fa38c5 | 2008-08-28 08:09:10 +0200 | [diff] [blame] | 2221 | rxq_refill(mp->rxq + i, INT_MAX); |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2222 | mp->int_mask |= INT_RX_0 << i; |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2223 | } |
| 2224 | |
Lennert Buytenhek | 1319eba | 2009-04-29 11:57:34 +0000 | [diff] [blame] | 2225 | if (mp->oom) { |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2226 | mp->rx_oom.expires = jiffies + (HZ / 10); |
| 2227 | add_timer(&mp->rx_oom); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2228 | } |
Lennert Buytenhek | 8a57811 | 2008-06-01 18:09:35 +0200 | [diff] [blame] | 2229 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2230 | for (i = 0; i < mp->txq_count; i++) { |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2231 | err = txq_init(mp, i); |
| 2232 | if (err) { |
| 2233 | while (--i >= 0) |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2234 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2235 | goto out_free; |
| 2236 | } |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2237 | mp->int_mask |= INT_TX_END_0 << i; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2238 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2239 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2240 | port_start(mp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2241 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2242 | wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX); |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2243 | wrlp(mp, INT_MASK, mp->int_mask); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2244 | |
| 2245 | return 0; |
| 2246 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2247 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2248 | out_free: |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2249 | for (i = 0; i < mp->rxq_count; i++) |
| 2250 | rxq_deinit(mp->rxq + i); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2251 | out: |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2252 | free_irq(dev->irq, dev); |
| 2253 | |
| 2254 | return err; |
| 2255 | } |
| 2256 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2257 | static void port_reset(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2258 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2259 | unsigned int data; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2260 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2261 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2262 | for (i = 0; i < mp->rxq_count; i++) |
| 2263 | rxq_disable(mp->rxq + i); |
| 2264 | for (i = 0; i < mp->txq_count; i++) |
| 2265 | txq_disable(mp->txq + i); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2266 | |
| 2267 | while (1) { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2268 | u32 ps = rdlp(mp, PORT_STATUS); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2269 | |
| 2270 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) |
| 2271 | break; |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2272 | udelay(10); |
Lennert Buytenhek | ae9ae06 | 2008-07-15 02:15:24 +0200 | [diff] [blame] | 2273 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2274 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2275 | /* Reset the Enable bit in the Configuration Register */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2276 | data = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2277 | data &= ~(SERIAL_PORT_ENABLE | |
| 2278 | DO_NOT_FORCE_LINK_FAIL | |
| 2279 | FORCE_LINK_PASS); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2280 | wrlp(mp, PORT_SERIAL_CONTROL, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2281 | } |
| 2282 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2283 | static int mv643xx_eth_stop(struct net_device *dev) |
| 2284 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2285 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2286 | int i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2287 | |
Gabriel Paubert | fe65e70 | 2009-01-19 17:18:09 -0800 | [diff] [blame] | 2288 | wrlp(mp, INT_MASK_EXT, 0x00000000); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2289 | wrlp(mp, INT_MASK, 0x00000000); |
| 2290 | rdlp(mp, INT_MASK); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2291 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2292 | napi_disable(&mp->napi); |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2293 | |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2294 | del_timer_sync(&mp->rx_oom); |
| 2295 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2296 | netif_carrier_off(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2297 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2298 | free_irq(dev->irq, dev); |
| 2299 | |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2300 | port_reset(mp); |
Lennert Buytenhek | 8fd8921 | 2008-08-28 08:26:28 +0200 | [diff] [blame] | 2301 | mv643xx_eth_get_stats(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2302 | mib_counters_update(mp); |
Sebastian Siewior | 57e8f26 | 2009-02-16 11:28:15 +0000 | [diff] [blame] | 2303 | del_timer_sync(&mp->mib_counters_timer); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2304 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2305 | for (i = 0; i < mp->rxq_count; i++) |
| 2306 | rxq_deinit(mp->rxq + i); |
| 2307 | for (i = 0; i < mp->txq_count; i++) |
| 2308 | txq_deinit(mp->txq + i); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2309 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2310 | return 0; |
| 2311 | } |
| 2312 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2313 | 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] | 2314 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2315 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 2316 | int ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2317 | |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 2318 | if (mp->phy == NULL) |
| 2319 | return -ENOTSUPP; |
Lennert Buytenhek | bedfe32 | 2008-06-02 02:13:03 +0200 | [diff] [blame] | 2320 | |
Phil Sutter | 260055b | 2013-03-06 07:49:02 +0000 | [diff] [blame] | 2321 | ret = phy_mii_ioctl(mp->phy, ifr, cmd); |
| 2322 | if (!ret) |
| 2323 | mv643xx_adjust_pscr(mp); |
| 2324 | return ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2325 | } |
| 2326 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2327 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
| 2328 | { |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2329 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2330 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2331 | if (new_mtu < 64 || new_mtu > 9500) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2332 | return -EINVAL; |
| 2333 | |
| 2334 | dev->mtu = new_mtu; |
Lennert Buytenhek | 2bcb4b0 | 2008-10-01 02:33:57 -0700 | [diff] [blame] | 2335 | mv643xx_eth_recalc_skb_size(mp); |
Lennert Buytenhek | 89df5fd | 2008-06-02 00:51:05 +0200 | [diff] [blame] | 2336 | tx_set_rate(mp, 1000000000, 16777216); |
| 2337 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2338 | if (!netif_running(dev)) |
| 2339 | return 0; |
| 2340 | |
| 2341 | /* |
| 2342 | * Stop and then re-open the interface. This will allocate RX |
| 2343 | * skbs of the new MTU. |
| 2344 | * There is a possible danger that the open will not succeed, |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2345 | * due to memory being full. |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2346 | */ |
| 2347 | mv643xx_eth_stop(dev); |
| 2348 | if (mv643xx_eth_open(dev)) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2349 | netdev_err(dev, |
| 2350 | "fatal error on re-opening device after MTU change\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2351 | } |
| 2352 | |
| 2353 | return 0; |
| 2354 | } |
| 2355 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2356 | static void tx_timeout_task(struct work_struct *ugly) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2357 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2358 | struct mv643xx_eth_private *mp; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2359 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2360 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
| 2361 | if (netif_running(mp->dev)) { |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2362 | netif_tx_stop_all_queues(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2363 | port_reset(mp); |
| 2364 | port_start(mp); |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2365 | netif_tx_wake_all_queues(mp->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2366 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2367 | } |
| 2368 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2369 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
| 2370 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2371 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2372 | |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2373 | netdev_info(dev, "tx timeout\n"); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2374 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2375 | schedule_work(&mp->tx_timeout_task); |
| 2376 | } |
| 2377 | |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2378 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2379 | static void mv643xx_eth_netpoll(struct net_device *dev) |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2380 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2381 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2382 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2383 | wrlp(mp, INT_MASK, 0x00000000); |
| 2384 | rdlp(mp, INT_MASK); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2385 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2386 | mv643xx_eth_irq(dev->irq, dev); |
Dale Farnsworth | c2e5b35 | 2006-01-16 17:00:24 -0700 | [diff] [blame] | 2387 | |
Saeed Bishara | e0ca841 | 2009-05-06 03:02:01 +0000 | [diff] [blame] | 2388 | wrlp(mp, INT_MASK, mp->int_mask); |
Dale Farnsworth | 63c9e54 | 2005-09-02 13:49:10 -0700 | [diff] [blame] | 2389 | } |
| 2390 | #endif |
| 2391 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2392 | |
| 2393 | /* platform glue ************************************************************/ |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2394 | static void |
| 2395 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, |
Andrew Lunn | 63a9332 | 2011-12-07 21:48:07 +0100 | [diff] [blame] | 2396 | const struct mbus_dram_target_info *dram) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2397 | { |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2398 | void __iomem *base = msp->base; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2399 | u32 win_enable; |
| 2400 | u32 win_protect; |
| 2401 | int i; |
| 2402 | |
| 2403 | for (i = 0; i < 6; i++) { |
| 2404 | writel(0, base + WINDOW_BASE(i)); |
| 2405 | writel(0, base + WINDOW_SIZE(i)); |
| 2406 | if (i < 4) |
| 2407 | writel(0, base + WINDOW_REMAP_HIGH(i)); |
| 2408 | } |
| 2409 | |
| 2410 | win_enable = 0x3f; |
| 2411 | win_protect = 0; |
| 2412 | |
| 2413 | for (i = 0; i < dram->num_cs; i++) { |
Andrew Lunn | 63a9332 | 2011-12-07 21:48:07 +0100 | [diff] [blame] | 2414 | const struct mbus_dram_window *cs = dram->cs + i; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2415 | |
| 2416 | writel((cs->base & 0xffff0000) | |
| 2417 | (cs->mbus_attr << 8) | |
| 2418 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); |
| 2419 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); |
| 2420 | |
| 2421 | win_enable &= ~(1 << i); |
| 2422 | win_protect |= 3 << (2 * i); |
| 2423 | } |
| 2424 | |
| 2425 | writel(win_enable, base + WINDOW_BAR_ENABLE); |
| 2426 | msp->win_protect = win_protect; |
| 2427 | } |
| 2428 | |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2429 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
| 2430 | { |
| 2431 | /* |
| 2432 | * Check whether we have a 14-bit coal limit field in bits |
| 2433 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the |
| 2434 | * SDMA config register. |
| 2435 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2436 | writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG); |
| 2437 | if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000) |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2438 | msp->extended_rx_coal_limit = 1; |
| 2439 | else |
| 2440 | msp->extended_rx_coal_limit = 0; |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2441 | |
| 2442 | /* |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2443 | * Check whether the MAC supports TX rate control, and if |
| 2444 | * yes, whether its associated registers are in the old or |
| 2445 | * the new place. |
Lennert Buytenhek | 1e88159 | 2008-06-02 01:57:36 +0200 | [diff] [blame] | 2446 | */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2447 | writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED); |
| 2448 | if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) { |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2449 | msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT; |
| 2450 | } else { |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2451 | writel(7, msp->base + 0x0400 + TX_BW_RATE); |
| 2452 | if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7) |
Lennert Buytenhek | 457b1d5 | 2008-09-04 12:22:34 +0200 | [diff] [blame] | 2453 | msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT; |
| 2454 | else |
| 2455 | msp->tx_bw_control = TX_BW_CONTROL_ABSENT; |
| 2456 | } |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2457 | } |
| 2458 | |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2459 | #if defined(CONFIG_OF) |
| 2460 | static const struct of_device_id mv643xx_eth_shared_ids[] = { |
| 2461 | { .compatible = "marvell,orion-eth", }, |
| 2462 | { .compatible = "marvell,kirkwood-eth", }, |
| 2463 | { } |
| 2464 | }; |
| 2465 | MODULE_DEVICE_TABLE(of, mv643xx_eth_shared_ids); |
| 2466 | #endif |
| 2467 | |
| 2468 | #if defined(CONFIG_OF) && !defined(CONFIG_MV64X60) |
| 2469 | #define mv643xx_eth_property(_np, _name, _v) \ |
| 2470 | do { \ |
| 2471 | u32 tmp; \ |
| 2472 | if (!of_property_read_u32(_np, "marvell," _name, &tmp)) \ |
| 2473 | _v = tmp; \ |
| 2474 | } while (0) |
| 2475 | |
| 2476 | static struct platform_device *port_platdev[3]; |
| 2477 | |
| 2478 | static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev, |
| 2479 | struct device_node *pnp) |
| 2480 | { |
| 2481 | struct platform_device *ppdev; |
| 2482 | struct mv643xx_eth_platform_data ppd; |
| 2483 | struct resource res; |
| 2484 | const char *mac_addr; |
| 2485 | int ret; |
Jonas Gorski | 785bf6f | 2013-07-08 00:44:55 +0200 | [diff] [blame] | 2486 | int dev_num = 0; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2487 | |
| 2488 | memset(&ppd, 0, sizeof(ppd)); |
| 2489 | ppd.shared = pdev; |
| 2490 | |
| 2491 | memset(&res, 0, sizeof(res)); |
| 2492 | if (!of_irq_to_resource(pnp, 0, &res)) { |
| 2493 | dev_err(&pdev->dev, "missing interrupt on %s\n", pnp->name); |
| 2494 | return -EINVAL; |
| 2495 | } |
| 2496 | |
| 2497 | if (of_property_read_u32(pnp, "reg", &ppd.port_number)) { |
| 2498 | dev_err(&pdev->dev, "missing reg property on %s\n", pnp->name); |
| 2499 | return -EINVAL; |
| 2500 | } |
| 2501 | |
| 2502 | if (ppd.port_number >= 3) { |
| 2503 | dev_err(&pdev->dev, "invalid reg property on %s\n", pnp->name); |
| 2504 | return -EINVAL; |
| 2505 | } |
| 2506 | |
Jonas Gorski | 785bf6f | 2013-07-08 00:44:55 +0200 | [diff] [blame] | 2507 | while (dev_num < 3 && port_platdev[dev_num]) |
| 2508 | dev_num++; |
| 2509 | |
| 2510 | if (dev_num == 3) { |
| 2511 | dev_err(&pdev->dev, "too many ports registered\n"); |
| 2512 | return -EINVAL; |
| 2513 | } |
| 2514 | |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2515 | mac_addr = of_get_mac_address(pnp); |
| 2516 | if (mac_addr) |
| 2517 | memcpy(ppd.mac_addr, mac_addr, 6); |
| 2518 | |
| 2519 | mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size); |
| 2520 | mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr); |
| 2521 | mv643xx_eth_property(pnp, "tx-sram-size", ppd.tx_sram_size); |
| 2522 | mv643xx_eth_property(pnp, "rx-queue-size", ppd.rx_queue_size); |
| 2523 | mv643xx_eth_property(pnp, "rx-sram-addr", ppd.rx_sram_addr); |
| 2524 | mv643xx_eth_property(pnp, "rx-sram-size", ppd.rx_sram_size); |
| 2525 | |
| 2526 | ppd.phy_node = of_parse_phandle(pnp, "phy-handle", 0); |
| 2527 | if (!ppd.phy_node) { |
| 2528 | ppd.phy_addr = MV643XX_ETH_PHY_NONE; |
| 2529 | of_property_read_u32(pnp, "speed", &ppd.speed); |
| 2530 | of_property_read_u32(pnp, "duplex", &ppd.duplex); |
| 2531 | } |
| 2532 | |
Jonas Gorski | 785bf6f | 2013-07-08 00:44:55 +0200 | [diff] [blame] | 2533 | ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num); |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2534 | if (!ppdev) |
| 2535 | return -ENOMEM; |
| 2536 | ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); |
| 2537 | |
| 2538 | ret = platform_device_add_resources(ppdev, &res, 1); |
| 2539 | if (ret) |
| 2540 | goto port_err; |
| 2541 | |
| 2542 | ret = platform_device_add_data(ppdev, &ppd, sizeof(ppd)); |
| 2543 | if (ret) |
| 2544 | goto port_err; |
| 2545 | |
| 2546 | ret = platform_device_add(ppdev); |
| 2547 | if (ret) |
| 2548 | goto port_err; |
| 2549 | |
Jonas Gorski | 785bf6f | 2013-07-08 00:44:55 +0200 | [diff] [blame] | 2550 | port_platdev[dev_num] = ppdev; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2551 | |
| 2552 | return 0; |
| 2553 | |
| 2554 | port_err: |
| 2555 | platform_device_put(ppdev); |
| 2556 | return ret; |
| 2557 | } |
| 2558 | |
| 2559 | static int mv643xx_eth_shared_of_probe(struct platform_device *pdev) |
| 2560 | { |
| 2561 | struct mv643xx_eth_shared_platform_data *pd; |
| 2562 | struct device_node *pnp, *np = pdev->dev.of_node; |
| 2563 | int ret; |
| 2564 | |
| 2565 | /* bail out if not registered from DT */ |
| 2566 | if (!np) |
| 2567 | return 0; |
| 2568 | |
| 2569 | pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL); |
| 2570 | if (!pd) |
| 2571 | return -ENOMEM; |
| 2572 | pdev->dev.platform_data = pd; |
| 2573 | |
| 2574 | mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit); |
| 2575 | |
| 2576 | for_each_available_child_of_node(np, pnp) { |
| 2577 | ret = mv643xx_eth_shared_of_add_port(pdev, pnp); |
| 2578 | if (ret) |
| 2579 | return ret; |
| 2580 | } |
| 2581 | return 0; |
| 2582 | } |
| 2583 | |
| 2584 | static void mv643xx_eth_shared_of_remove(void) |
| 2585 | { |
| 2586 | int n; |
| 2587 | |
| 2588 | for (n = 0; n < 3; n++) { |
| 2589 | platform_device_del(port_platdev[n]); |
| 2590 | port_platdev[n] = NULL; |
| 2591 | } |
| 2592 | } |
| 2593 | #else |
Arnd Bergmann | ff20877 | 2013-06-03 03:11:24 +0000 | [diff] [blame] | 2594 | static inline int mv643xx_eth_shared_of_probe(struct platform_device *pdev) |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2595 | { |
Arnd Bergmann | ff20877 | 2013-06-03 03:11:24 +0000 | [diff] [blame] | 2596 | return 0; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2597 | } |
| 2598 | |
Arnd Bergmann | ff20877 | 2013-06-03 03:11:24 +0000 | [diff] [blame] | 2599 | static inline void mv643xx_eth_shared_of_remove(void) |
| 2600 | { |
| 2601 | } |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2602 | #endif |
| 2603 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2604 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
| 2605 | { |
Lennert Buytenhek | 10a9948 | 2008-11-20 03:57:16 -0800 | [diff] [blame] | 2606 | static int mv643xx_eth_version_printed; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2607 | struct mv643xx_eth_shared_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2608 | struct mv643xx_eth_shared_private *msp; |
Andrew Lunn | 63a9332 | 2011-12-07 21:48:07 +0100 | [diff] [blame] | 2609 | const struct mbus_dram_target_info *dram; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2610 | struct resource *res; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2611 | int ret; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2612 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2613 | if (!mv643xx_eth_version_printed++) |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2614 | pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n", |
| 2615 | mv643xx_eth_driver_version); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2616 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2617 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 2618 | if (res == NULL) |
Sebastian Hesselbarth | 727f957 | 2013-04-10 23:29:34 +0000 | [diff] [blame] | 2619 | return -EINVAL; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2620 | |
Sebastian Hesselbarth | 727f957 | 2013-04-10 23:29:34 +0000 | [diff] [blame] | 2621 | msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2622 | if (msp == NULL) |
Sebastian Hesselbarth | 727f957 | 2013-04-10 23:29:34 +0000 | [diff] [blame] | 2623 | return -ENOMEM; |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2624 | platform_set_drvdata(pdev, msp); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2625 | |
Sebastian Hesselbarth | 65a6f96 | 2013-05-29 09:32:44 +0000 | [diff] [blame] | 2626 | msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); |
Lennert Buytenhek | cc9754b3 | 2008-06-01 02:10:27 +0200 | [diff] [blame] | 2627 | if (msp->base == NULL) |
Sebastian Hesselbarth | 727f957 | 2013-04-10 23:29:34 +0000 | [diff] [blame] | 2628 | return -ENOMEM; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2629 | |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2630 | msp->clk = devm_clk_get(&pdev->dev, NULL); |
| 2631 | if (!IS_ERR(msp->clk)) |
| 2632 | clk_prepare_enable(msp->clk); |
| 2633 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2634 | /* |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2635 | * (Re-)program MBUS remapping windows if we are asked to. |
| 2636 | */ |
Andrew Lunn | 63a9332 | 2011-12-07 21:48:07 +0100 | [diff] [blame] | 2637 | dram = mv_mbus_dram_info(); |
| 2638 | if (dram) |
| 2639 | mv643xx_eth_conf_mbus_windows(msp, dram); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2640 | |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2641 | ret = mv643xx_eth_shared_of_probe(pdev); |
| 2642 | if (ret) |
| 2643 | return ret; |
| 2644 | pd = pdev->dev.platform_data; |
| 2645 | |
Dan Carpenter | 50a749c | 2010-07-23 01:05:05 +0000 | [diff] [blame] | 2646 | msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ? |
| 2647 | pd->tx_csum_limit : 9 * 1024; |
Lennert Buytenhek | 773fc3e | 2008-06-02 01:54:16 +0200 | [diff] [blame] | 2648 | infer_hw_params(msp); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2649 | |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2650 | return 0; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2651 | } |
| 2652 | |
| 2653 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) |
| 2654 | { |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2655 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2656 | |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2657 | mv643xx_eth_shared_of_remove(); |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2658 | if (!IS_ERR(msp->clk)) |
| 2659 | clk_disable_unprepare(msp->clk); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2660 | return 0; |
| 2661 | } |
| 2662 | |
| 2663 | static struct platform_driver mv643xx_eth_shared_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2664 | .probe = mv643xx_eth_shared_probe, |
| 2665 | .remove = mv643xx_eth_shared_remove, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2666 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2667 | .name = MV643XX_ETH_SHARED_NAME, |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2668 | .owner = THIS_MODULE, |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2669 | .of_match_table = of_match_ptr(mv643xx_eth_shared_ids), |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2670 | }, |
| 2671 | }; |
| 2672 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2673 | 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] | 2674 | { |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2675 | int addr_shift = 5 * mp->port_num; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2676 | u32 data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2677 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2678 | data = rdl(mp, PHY_ADDR); |
| 2679 | data &= ~(0x1f << addr_shift); |
| 2680 | data |= (phy_addr & 0x1f) << addr_shift; |
| 2681 | wrl(mp, PHY_ADDR, data); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2682 | } |
| 2683 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2684 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2685 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2686 | unsigned int data; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2687 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2688 | data = rdl(mp, PHY_ADDR); |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2689 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2690 | return (data >> (5 * mp->port_num)) & 0x1f; |
| 2691 | } |
| 2692 | |
| 2693 | static void set_params(struct mv643xx_eth_private *mp, |
| 2694 | struct mv643xx_eth_platform_data *pd) |
| 2695 | { |
| 2696 | struct net_device *dev = mp->dev; |
| 2697 | |
| 2698 | if (is_valid_ether_addr(pd->mac_addr)) |
| 2699 | memcpy(dev->dev_addr, pd->mac_addr, 6); |
| 2700 | else |
| 2701 | uc_addr_get(mp, dev->dev_addr); |
| 2702 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 2703 | mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2704 | if (pd->rx_queue_size) |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 2705 | mp->rx_ring_size = pd->rx_queue_size; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2706 | mp->rx_desc_sram_addr = pd->rx_sram_addr; |
| 2707 | mp->rx_desc_sram_size = pd->rx_sram_size; |
| 2708 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2709 | mp->rxq_count = pd->rx_queue_count ? : 1; |
Lennert Buytenhek | 64da80a | 2008-06-02 01:01:26 +0200 | [diff] [blame] | 2710 | |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 2711 | mp->tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2712 | if (pd->tx_queue_size) |
Lennert Buytenhek | e7d2f4d | 2009-02-12 14:07:37 +0000 | [diff] [blame] | 2713 | mp->tx_ring_size = pd->tx_queue_size; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2714 | mp->tx_desc_sram_addr = pd->tx_sram_addr; |
| 2715 | mp->tx_desc_sram_size = pd->tx_sram_size; |
Lennert Buytenhek | 3d6b35b | 2008-06-02 01:28:22 +0200 | [diff] [blame] | 2716 | |
Lennert Buytenhek | f7981c1 | 2008-08-26 10:23:22 +0200 | [diff] [blame] | 2717 | mp->txq_count = pd->tx_queue_count ? : 1; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2718 | } |
| 2719 | |
Florian Fainelli | c3a0713 | 2013-03-22 03:39:28 +0000 | [diff] [blame] | 2720 | static void mv643xx_eth_adjust_link(struct net_device *dev) |
| 2721 | { |
| 2722 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
| 2723 | |
| 2724 | mv643xx_adjust_pscr(mp); |
| 2725 | } |
| 2726 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2727 | static struct phy_device *phy_scan(struct mv643xx_eth_private *mp, |
| 2728 | int phy_addr) |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2729 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2730 | struct phy_device *phydev; |
| 2731 | int start; |
| 2732 | int num; |
| 2733 | int i; |
Florian Fainelli | c3a0713 | 2013-03-22 03:39:28 +0000 | [diff] [blame] | 2734 | char phy_id[MII_BUS_ID_SIZE + 3]; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2735 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2736 | if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) { |
| 2737 | start = phy_addr_get(mp) & 0x1f; |
| 2738 | num = 32; |
| 2739 | } else { |
| 2740 | start = phy_addr & 0x1f; |
| 2741 | num = 1; |
| 2742 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2743 | |
Florian Fainelli | c3a0713 | 2013-03-22 03:39:28 +0000 | [diff] [blame] | 2744 | /* Attempt to connect to the PHY using orion-mdio */ |
Simon Baatz | 976c90b | 2013-03-24 10:34:00 +0000 | [diff] [blame] | 2745 | phydev = ERR_PTR(-ENODEV); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2746 | for (i = 0; i < num; i++) { |
| 2747 | int addr = (start + i) & 0x1f; |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2748 | |
Florian Fainelli | c3a0713 | 2013-03-22 03:39:28 +0000 | [diff] [blame] | 2749 | snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, |
| 2750 | "orion-mdio-mii", addr); |
Lennert Buytenhek | 45c5d3b | 2008-08-26 04:42:59 +0200 | [diff] [blame] | 2751 | |
Florian Fainelli | c3a0713 | 2013-03-22 03:39:28 +0000 | [diff] [blame] | 2752 | phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link, |
| 2753 | PHY_INTERFACE_MODE_GMII); |
| 2754 | if (!IS_ERR(phydev)) { |
| 2755 | phy_addr_set(mp, addr); |
| 2756 | break; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2757 | } |
| 2758 | } |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2759 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2760 | return phydev; |
Lennert Buytenhek | c9df406f | 2008-06-01 00:48:39 +0200 | [diff] [blame] | 2761 | } |
| 2762 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2763 | static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex) |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2764 | { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2765 | struct phy_device *phy = mp->phy; |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2766 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2767 | phy_reset(mp); |
| 2768 | |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2769 | if (speed == 0) { |
| 2770 | phy->autoneg = AUTONEG_ENABLE; |
| 2771 | phy->speed = 0; |
| 2772 | phy->duplex = 0; |
| 2773 | phy->advertising = phy->supported | ADVERTISED_Autoneg; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2774 | } else { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2775 | phy->autoneg = AUTONEG_DISABLE; |
| 2776 | phy->advertising = 0; |
| 2777 | phy->speed = speed; |
| 2778 | phy->duplex = duplex; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2779 | } |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2780 | phy_start_aneg(phy); |
James Chapman | d0412d9 | 2006-01-27 01:15:30 -0700 | [diff] [blame] | 2781 | } |
| 2782 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2783 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
| 2784 | { |
| 2785 | u32 pscr; |
| 2786 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2787 | pscr = rdlp(mp, PORT_SERIAL_CONTROL); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2788 | if (pscr & SERIAL_PORT_ENABLE) { |
| 2789 | pscr &= ~SERIAL_PORT_ENABLE; |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2790 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2791 | } |
| 2792 | |
| 2793 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2794 | if (mp->phy == NULL) { |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2795 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
| 2796 | if (speed == SPEED_1000) |
| 2797 | pscr |= SET_GMII_SPEED_TO_1000; |
| 2798 | else if (speed == SPEED_100) |
| 2799 | pscr |= SET_MII_SPEED_TO_100; |
| 2800 | |
| 2801 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; |
| 2802 | |
| 2803 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; |
| 2804 | if (duplex == DUPLEX_FULL) |
| 2805 | pscr |= SET_FULL_DUPLEX_MODE; |
| 2806 | } |
| 2807 | |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2808 | wrlp(mp, PORT_SERIAL_CONTROL, pscr); |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2809 | } |
| 2810 | |
Lennert Buytenhek | ea8a864 | 2009-02-24 15:41:40 +0000 | [diff] [blame] | 2811 | static const struct net_device_ops mv643xx_eth_netdev_ops = { |
| 2812 | .ndo_open = mv643xx_eth_open, |
| 2813 | .ndo_stop = mv643xx_eth_stop, |
| 2814 | .ndo_start_xmit = mv643xx_eth_xmit, |
| 2815 | .ndo_set_rx_mode = mv643xx_eth_set_rx_mode, |
| 2816 | .ndo_set_mac_address = mv643xx_eth_set_mac_address, |
kirjanov@gmail.com | 1d4bd94 | 2010-02-16 20:40:11 +0000 | [diff] [blame] | 2817 | .ndo_validate_addr = eth_validate_addr, |
Lennert Buytenhek | ea8a864 | 2009-02-24 15:41:40 +0000 | [diff] [blame] | 2818 | .ndo_do_ioctl = mv643xx_eth_ioctl, |
| 2819 | .ndo_change_mtu = mv643xx_eth_change_mtu, |
Michał Mirosław | aad59c4 | 2011-04-17 00:15:46 +0000 | [diff] [blame] | 2820 | .ndo_set_features = mv643xx_eth_set_features, |
Lennert Buytenhek | ea8a864 | 2009-02-24 15:41:40 +0000 | [diff] [blame] | 2821 | .ndo_tx_timeout = mv643xx_eth_tx_timeout, |
| 2822 | .ndo_get_stats = mv643xx_eth_get_stats, |
| 2823 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2824 | .ndo_poll_controller = mv643xx_eth_netpoll, |
| 2825 | #endif |
| 2826 | }; |
| 2827 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2828 | static int mv643xx_eth_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2830 | struct mv643xx_eth_platform_data *pd; |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 2831 | struct mv643xx_eth_private *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2833 | struct resource *res; |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2834 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2835 | |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2836 | pd = pdev->dev.platform_data; |
| 2837 | if (pd == NULL) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2838 | dev_err(&pdev->dev, "no mv643xx_eth_platform_data\n"); |
Dale Farnsworth | 84dd619 | 2007-03-03 06:40:28 -0700 | [diff] [blame] | 2839 | return -ENODEV; |
| 2840 | } |
| 2841 | |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2842 | if (pd->shared == NULL) { |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2843 | dev_err(&pdev->dev, "no mv643xx_eth_platform_data->shared\n"); |
Lennert Buytenhek | fa3959f | 2008-04-24 01:27:02 +0200 | [diff] [blame] | 2844 | return -ENODEV; |
| 2845 | } |
| 2846 | |
Lennert Buytenhek | e5ef1de | 2008-08-28 06:26:23 +0200 | [diff] [blame] | 2847 | dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2848 | if (!dev) |
| 2849 | return -ENOMEM; |
| 2850 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2851 | mp = netdev_priv(dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2852 | platform_set_drvdata(pdev, mp); |
| 2853 | |
| 2854 | mp->shared = platform_get_drvdata(pd->shared); |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 2855 | mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2856 | mp->port_num = pd->port_number; |
| 2857 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2858 | mp->dev = dev; |
Lennert Buytenhek | 78fff83 | 2008-08-24 01:03:57 +0200 | [diff] [blame] | 2859 | |
Sebastian Hesselbarth | cb85215 | 2013-05-29 09:32:47 +0000 | [diff] [blame] | 2860 | /* Kirkwood resets some registers on gated clocks. Especially |
| 2861 | * CLK125_BYPASS_EN must be cleared but is not available on |
| 2862 | * all other SoCs/System Controllers using this driver. |
| 2863 | */ |
| 2864 | if (of_device_is_compatible(pdev->dev.of_node, |
| 2865 | "marvell,kirkwood-eth-port")) |
| 2866 | wrlp(mp, PORT_SERIAL_CONTROL1, |
| 2867 | rdlp(mp, PORT_SERIAL_CONTROL1) & ~CLK125_BYPASS_EN); |
| 2868 | |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2869 | /* |
Andrew Lunn | 9a43a02 | 2012-06-06 06:40:43 +0000 | [diff] [blame] | 2870 | * Start with a default rate, and if there is a clock, allow |
| 2871 | * it to override the default. |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2872 | */ |
Andrew Lunn | 9a43a02 | 2012-06-06 06:40:43 +0000 | [diff] [blame] | 2873 | mp->t_clk = 133000000; |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2874 | mp->clk = devm_clk_get(&pdev->dev, NULL); |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2875 | if (!IS_ERR(mp->clk)) { |
| 2876 | clk_prepare_enable(mp->clk); |
| 2877 | mp->t_clk = clk_get_rate(mp->clk); |
Sebastian Hesselbarth | 76723bc | 2013-05-29 09:32:48 +0000 | [diff] [blame] | 2878 | } else if (!IS_ERR(mp->shared->clk)) { |
| 2879 | mp->t_clk = clk_get_rate(mp->shared->clk); |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2880 | } |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2881 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2882 | set_params(mp, pd); |
Ben Hutchings | 206d6b3 | 2010-09-27 08:30:05 +0000 | [diff] [blame] | 2883 | netif_set_real_num_tx_queues(dev, mp->txq_count); |
| 2884 | netif_set_real_num_rx_queues(dev, mp->rxq_count); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2885 | |
Sebastian Hesselbarth | cc9d459 | 2013-05-29 09:32:46 +0000 | [diff] [blame] | 2886 | err = 0; |
| 2887 | if (pd->phy_node) { |
| 2888 | mp->phy = of_phy_connect(mp->dev, pd->phy_node, |
| 2889 | mv643xx_eth_adjust_link, 0, |
| 2890 | PHY_INTERFACE_MODE_GMII); |
| 2891 | if (!mp->phy) |
| 2892 | err = -ENODEV; |
| 2893 | } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) { |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2894 | mp->phy = phy_scan(mp, pd->phy_addr); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2895 | |
Sebastian Hesselbarth | cc9d459 | 2013-05-29 09:32:46 +0000 | [diff] [blame] | 2896 | if (IS_ERR(mp->phy)) |
Simon Baatz | 976c90b | 2013-03-24 10:34:00 +0000 | [diff] [blame] | 2897 | err = PTR_ERR(mp->phy); |
Sebastian Hesselbarth | cc9d459 | 2013-05-29 09:32:46 +0000 | [diff] [blame] | 2898 | else |
| 2899 | phy_init(mp, pd->speed, pd->duplex); |
Simon Baatz | 976c90b | 2013-03-24 10:34:00 +0000 | [diff] [blame] | 2900 | } |
Sebastian Hesselbarth | cc9d459 | 2013-05-29 09:32:46 +0000 | [diff] [blame] | 2901 | if (err == -ENODEV) { |
| 2902 | err = -EPROBE_DEFER; |
| 2903 | goto out; |
| 2904 | } |
| 2905 | if (err) |
| 2906 | goto out; |
Lennert Buytenhek | 6bdf576 | 2009-02-12 14:06:46 +0000 | [diff] [blame] | 2907 | |
| 2908 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2909 | |
Lennert Buytenhek | 81600eea9 | 2008-07-14 14:29:40 +0200 | [diff] [blame] | 2910 | init_pscr(mp, pd->speed, pd->duplex); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2911 | |
Lennert Buytenhek | 4ff3495 | 2008-09-19 05:04:57 +0200 | [diff] [blame] | 2912 | |
| 2913 | mib_counters_clear(mp); |
| 2914 | |
| 2915 | init_timer(&mp->mib_counters_timer); |
| 2916 | mp->mib_counters_timer.data = (unsigned long)mp; |
| 2917 | mp->mib_counters_timer.function = mib_counters_timer_wrapper; |
| 2918 | mp->mib_counters_timer.expires = jiffies + 30 * HZ; |
| 2919 | add_timer(&mp->mib_counters_timer); |
| 2920 | |
| 2921 | spin_lock_init(&mp->mib_counters_lock); |
| 2922 | |
| 2923 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); |
| 2924 | |
Andrew Lunn | a3659aa | 2013-05-13 23:54:20 +0000 | [diff] [blame] | 2925 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, NAPI_POLL_WEIGHT); |
Lennert Buytenhek | 2257e05 | 2008-08-24 04:33:36 +0200 | [diff] [blame] | 2926 | |
| 2927 | init_timer(&mp->rx_oom); |
| 2928 | mp->rx_oom.data = (unsigned long)mp; |
| 2929 | mp->rx_oom.function = oom_timer_wrapper; |
| 2930 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2931 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2932 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 2933 | BUG_ON(!res); |
| 2934 | dev->irq = res->start; |
| 2935 | |
Lennert Buytenhek | ea8a864 | 2009-02-24 15:41:40 +0000 | [diff] [blame] | 2936 | dev->netdev_ops = &mv643xx_eth_netdev_ops; |
| 2937 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2938 | dev->watchdog_timeo = 2 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2939 | dev->base_addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2940 | |
Sebastian Hesselbarth | 3619eb8 | 2013-04-11 23:20:00 +0000 | [diff] [blame] | 2941 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM; |
Michał Mirosław | aad59c4 | 2011-04-17 00:15:46 +0000 | [diff] [blame] | 2942 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM; |
Lennert Buytenhek | e32b661 | 2008-07-24 06:22:59 +0200 | [diff] [blame] | 2943 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
James Chapman | c28a4f8 | 2006-01-27 01:13:15 -0700 | [diff] [blame] | 2944 | |
Jiri Pirko | 0178934 | 2011-08-16 06:29:00 +0000 | [diff] [blame] | 2945 | dev->priv_flags |= IFF_UNICAST_FLT; |
| 2946 | |
Olaf Hering | b0b8dab | 2006-04-27 18:23:49 -0700 | [diff] [blame] | 2947 | SET_NETDEV_DEV(dev, &pdev->dev); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2948 | |
| 2949 | if (mp->shared->win_protect) |
| 2950 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
| 2951 | |
Lennert Buytenhek | a5fe361 | 2009-02-24 15:41:47 +0000 | [diff] [blame] | 2952 | netif_carrier_off(dev); |
| 2953 | |
Lennert Buytenhek | b5e86db | 2009-04-08 15:42:46 -0700 | [diff] [blame] | 2954 | wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE); |
| 2955 | |
Lennert Buytenhek | 4fb0a54 | 2009-02-24 15:42:05 +0000 | [diff] [blame] | 2956 | set_rx_coal(mp, 250); |
Lennert Buytenhek | a5fe361 | 2009-02-24 15:41:47 +0000 | [diff] [blame] | 2957 | set_tx_coal(mp, 0); |
| 2958 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2959 | err = register_netdev(dev); |
| 2960 | if (err) |
| 2961 | goto out; |
| 2962 | |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2963 | netdev_notice(dev, "port %d with MAC address %pM\n", |
| 2964 | mp->port_num, dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2965 | |
Lennert Buytenhek | 13d6428 | 2008-06-01 20:51:22 +0200 | [diff] [blame] | 2966 | if (mp->tx_desc_sram_size > 0) |
Joe Perches | 7542db8 | 2011-03-02 17:50:35 +0000 | [diff] [blame] | 2967 | netdev_notice(dev, "configured with sram\n"); |
Nicolas DET | b152987 | 2005-10-28 17:46:30 -0700 | [diff] [blame] | 2968 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2969 | return 0; |
| 2970 | |
| 2971 | out: |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2972 | if (!IS_ERR(mp->clk)) |
Simon Baatz | baffab2 | 2012-07-19 00:04:09 +0200 | [diff] [blame] | 2973 | clk_disable_unprepare(mp->clk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | free_netdev(dev); |
| 2975 | |
| 2976 | return err; |
| 2977 | } |
| 2978 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 2979 | static int mv643xx_eth_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2980 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2981 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2982 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2983 | unregister_netdev(mp->dev); |
Lennert Buytenhek | ed94493 | 2008-08-26 13:34:19 +0200 | [diff] [blame] | 2984 | if (mp->phy != NULL) |
Sebastian Hesselbarth | cec753f | 2013-05-29 09:32:43 +0000 | [diff] [blame] | 2985 | phy_disconnect(mp->phy); |
Tejun Heo | 23f333a | 2010-12-12 16:45:14 +0100 | [diff] [blame] | 2986 | cancel_work_sync(&mp->tx_timeout_task); |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2987 | |
Sebastian Hesselbarth | 2092248 | 2013-04-10 23:29:33 +0000 | [diff] [blame] | 2988 | if (!IS_ERR(mp->clk)) |
Andrew Lunn | 452503e | 2011-12-24 01:24:24 +0100 | [diff] [blame] | 2989 | clk_disable_unprepare(mp->clk); |
Andrew Lunn | 9a43a02 | 2012-06-06 06:40:43 +0000 | [diff] [blame] | 2990 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2991 | free_netdev(mp->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2992 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2993 | return 0; |
| 2994 | } |
| 2995 | |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2996 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
| 2997 | { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 2998 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 2999 | |
| 3000 | /* Mask all interrupts on ethernet port */ |
Lennert Buytenhek | 37a6084 | 2008-11-20 03:57:36 -0800 | [diff] [blame] | 3001 | wrlp(mp, INT_MASK, 0); |
| 3002 | rdlp(mp, INT_MASK); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 3003 | |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3004 | if (netif_running(mp->dev)) |
| 3005 | port_reset(mp); |
Dale Farnsworth | d57ab6f | 2007-03-20 16:38:04 -0700 | [diff] [blame] | 3006 | } |
| 3007 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3008 | static struct platform_driver mv643xx_eth_driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3009 | .probe = mv643xx_eth_probe, |
| 3010 | .remove = mv643xx_eth_remove, |
| 3011 | .shutdown = mv643xx_eth_shutdown, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3012 | .driver = { |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3013 | .name = MV643XX_ETH_NAME, |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 3014 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3015 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3016 | }; |
| 3017 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 3018 | static int __init mv643xx_eth_init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3019 | { |
| 3020 | int rc; |
| 3021 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3022 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3023 | if (!rc) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3024 | rc = platform_driver_register(&mv643xx_eth_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3025 | if (rc) |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3026 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3027 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3028 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3029 | return rc; |
| 3030 | } |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3031 | module_init(mv643xx_eth_init_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3032 | |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 3033 | static void __exit mv643xx_eth_cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3034 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 3035 | platform_driver_unregister(&mv643xx_eth_driver); |
| 3036 | platform_driver_unregister(&mv643xx_eth_shared_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3037 | } |
Lennert Buytenhek | e537149 | 2008-06-01 02:18:13 +0200 | [diff] [blame] | 3038 | module_exit(mv643xx_eth_cleanup_module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3039 | |
Lennert Buytenhek | 45675bc | 2008-06-02 02:02:30 +0200 | [diff] [blame] | 3040 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
| 3041 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3042 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3043 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 3044 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
Lennert Buytenhek | fc32b0e | 2008-06-02 00:28:40 +0200 | [diff] [blame] | 3045 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |