blob: e1a18e3540adff1fe1fcb647a17b3b2bcfbb6ef5 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Lennert Buytenhek9c1bbdf2007-10-19 04:11:03 +02002 * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com>
4 *
5 * Based on the 64360 driver from:
Lennert Buytenhek4547fa62008-03-18 11:40:14 -07006 * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il>
7 * Rabeeh Khoury <rabeeh@marvell.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 *
9 * Copyright (C) 2003 PMC-Sierra, Inc.,
Olaf Hering3bb8a182006-01-05 22:45:45 -080010 * written by Manish Lachwani
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 *
12 * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org>
13 *
Dale Farnsworthc8aaea22006-03-03 10:02:05 -070014 * Copyright (C) 2004-2006 MontaVista Software, Inc.
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 * Dale Farnsworth <dale@farnsworth.org>
16 *
17 * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com>
18 * <sjhill@realitydiluted.com>
19 *
Lennert Buytenhek4547fa62008-03-18 11:40:14 -070020 * Copyright (C) 2007-2008 Marvell Semiconductor
21 * Lennert Buytenhek <buytenh@marvell.com>
22 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 * This program is free software; you can redistribute it and/or
24 * modify it under the terms of the GNU General Public License
25 * as published by the Free Software Foundation; either version 2
26 * of the License, or (at your option) any later version.
27 *
28 * This program is distributed in the hope that it will be useful,
29 * but WITHOUT ANY WARRANTY; without even the implied warranty of
30 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 * GNU General Public License for more details.
32 *
33 * You should have received a copy of the GNU General Public License
34 * along with this program; if not, write to the Free Software
35 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 */
Lennert Buytenheka779d382008-06-01 00:54:05 +020037
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#include <linux/init.h>
39#include <linux/dma-mapping.h>
Al Virob6298c22006-01-18 19:35:54 -050040#include <linux/in.h>
Lennert Buytenhekc3efab82008-10-02 00:52:39 +000041#include <linux/ip.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042#include <linux/tcp.h>
43#include <linux/udp.h>
44#include <linux/etherdevice.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#include <linux/delay.h>
46#include <linux/ethtool.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010047#include <linux/platform_device.h>
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020048#include <linux/module.h>
49#include <linux/kernel.h>
50#include <linux/spinlock.h>
51#include <linux/workqueue.h>
Lennert Buytenheked944932008-08-26 13:34:19 +020052#include <linux/phy.h>
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020053#include <linux/mv643xx_eth.h>
Lennert Buytenhek10a99482008-11-20 03:57:16 -080054#include <linux/io.h>
55#include <linux/types.h>
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +000056#include <linux/inet_lro.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070057#include <asm/system.h>
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020058
Lennert Buytenheke5371492008-06-01 02:18:13 +020059static char mv643xx_eth_driver_name[] = "mv643xx_eth";
Lennert Buytenhek042af532008-08-24 09:01:57 +020060static char mv643xx_eth_driver_version[] = "1.4";
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +020061
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020062
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020063/*
64 * Registers shared between all ports.
65 */
Lennert Buytenhek3cb46672008-06-01 01:03:23 +020066#define PHY_ADDR 0x0000
67#define SMI_REG 0x0004
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +020068#define SMI_BUSY 0x10000000
69#define SMI_READ_VALID 0x08000000
70#define SMI_OPCODE_READ 0x04000000
71#define SMI_OPCODE_WRITE 0x00000000
72#define ERR_INT_CAUSE 0x0080
73#define ERR_INT_SMI_DONE 0x00000010
74#define ERR_INT_MASK 0x0084
Lennert Buytenhek3cb46672008-06-01 01:03:23 +020075#define WINDOW_BASE(w) (0x0200 + ((w) << 3))
76#define WINDOW_SIZE(w) (0x0204 + ((w) << 3))
77#define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2))
78#define WINDOW_BAR_ENABLE 0x0290
79#define WINDOW_PROTECT(w) (0x0294 + ((w) << 4))
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020080
81/*
Lennert Buytenhek37a60842008-11-20 03:57:36 -080082 * Main per-port registers. These live at offset 0x0400 for
83 * port #0, 0x0800 for port #1, and 0x0c00 for port #2.
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +020084 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -080085#define PORT_CONFIG 0x0000
Lennert Buytenhekd9a073e2008-06-01 01:22:06 +020086#define UNICAST_PROMISCUOUS_MODE 0x00000001
Lennert Buytenhek37a60842008-11-20 03:57:36 -080087#define PORT_CONFIG_EXT 0x0004
88#define MAC_ADDR_LOW 0x0014
89#define MAC_ADDR_HIGH 0x0018
90#define SDMA_CONFIG 0x001c
91#define PORT_SERIAL_CONTROL 0x003c
92#define PORT_STATUS 0x0044
Lennert Buytenheka2a41682008-06-01 01:30:42 +020093#define TX_FIFO_EMPTY 0x00000400
Lennert Buytenhekae9ae062008-07-15 02:15:24 +020094#define TX_IN_PROGRESS 0x00000080
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +020095#define PORT_SPEED_MASK 0x00000030
96#define PORT_SPEED_1000 0x00000010
97#define PORT_SPEED_100 0x00000020
98#define PORT_SPEED_10 0x00000000
99#define FLOW_CONTROL_ENABLED 0x00000008
100#define FULL_DUPLEX 0x00000004
Lennert Buytenhek81600eea92008-07-14 14:29:40 +0200101#define LINK_UP 0x00000002
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800102#define TXQ_COMMAND 0x0048
103#define TXQ_FIX_PRIO_CONF 0x004c
104#define TX_BW_RATE 0x0050
105#define TX_BW_MTU 0x0058
106#define TX_BW_BURST 0x005c
107#define INT_CAUSE 0x0060
Lennert Buytenhek226bb6b2008-06-02 01:47:21 +0200108#define INT_TX_END 0x07f80000
Lennert Buytenhekbefefe22008-08-28 06:10:04 +0200109#define INT_RX 0x000003fc
Lennert Buytenhek073a3452008-06-01 02:00:31 +0200110#define INT_EXT 0x00000002
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800111#define INT_CAUSE_EXT 0x0064
Lennert Buytenhekbefefe22008-08-28 06:10:04 +0200112#define INT_EXT_LINK_PHY 0x00110000
113#define INT_EXT_TX 0x000000ff
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800114#define INT_MASK 0x0068
115#define INT_MASK_EXT 0x006c
116#define TX_FIFO_URGENT_THRESHOLD 0x0074
117#define TXQ_FIX_PRIO_CONF_MOVED 0x00dc
118#define TX_BW_RATE_MOVED 0x00e0
119#define TX_BW_MTU_MOVED 0x00e8
120#define TX_BW_BURST_MOVED 0x00ec
121#define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4))
122#define RXQ_COMMAND 0x0280
123#define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2))
124#define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4))
125#define TXQ_BW_CONF(q) (0x0304 + ((q) << 4))
126#define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4))
127
128/*
129 * Misc per-port registers.
130 */
Lennert Buytenhek3cb46672008-06-01 01:03:23 +0200131#define MIB_COUNTERS(p) (0x1000 + ((p) << 7))
132#define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10))
133#define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10))
134#define UNICAST_TABLE(p) (0x1600 + ((p) << 10))
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200135
Lennert Buytenhek2679a552008-06-01 01:18:58 +0200136
137/*
138 * SDMA configuration register.
139 */
Lennert Buytenheke0c6ef92009-01-19 17:16:00 -0800140#define RX_BURST_SIZE_4_64BIT (2 << 1)
Lennert Buytenhekcd4ccf72008-07-10 14:40:51 +0200141#define RX_BURST_SIZE_16_64BIT (4 << 1)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200142#define BLM_RX_NO_SWAP (1 << 4)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200143#define BLM_TX_NO_SWAP (1 << 5)
Lennert Buytenheke0c6ef92009-01-19 17:16:00 -0800144#define TX_BURST_SIZE_4_64BIT (2 << 22)
Lennert Buytenhekcd4ccf72008-07-10 14:40:51 +0200145#define TX_BURST_SIZE_16_64BIT (4 << 22)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200146
147#if defined(__BIG_ENDIAN)
148#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
Lennert Buytenheke0c6ef92009-01-19 17:16:00 -0800149 (RX_BURST_SIZE_4_64BIT | \
150 TX_BURST_SIZE_4_64BIT)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200151#elif defined(__LITTLE_ENDIAN)
152#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
Lennert Buytenheke0c6ef92009-01-19 17:16:00 -0800153 (RX_BURST_SIZE_4_64BIT | \
154 BLM_RX_NO_SWAP | \
155 BLM_TX_NO_SWAP | \
156 TX_BURST_SIZE_4_64BIT)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200157#else
158#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
159#endif
160
Lennert Buytenhek2beff772008-06-01 01:22:37 +0200161
162/*
163 * Port serial control register.
164 */
165#define SET_MII_SPEED_TO_100 (1 << 24)
166#define SET_GMII_SPEED_TO_1000 (1 << 23)
167#define SET_FULL_DUPLEX_MODE (1 << 21)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200168#define MAX_RX_PACKET_9700BYTE (5 << 17)
Lennert Buytenhek2beff772008-06-01 01:22:37 +0200169#define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13)
170#define DO_NOT_FORCE_LINK_FAIL (1 << 10)
171#define SERIAL_PORT_CONTROL_RESERVED (1 << 9)
172#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3)
173#define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2)
174#define FORCE_LINK_PASS (1 << 1)
175#define SERIAL_PORT_ENABLE (1 << 0)
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200176
Lennert Buytenhek2b4a6242008-09-14 14:09:59 +0200177#define DEFAULT_RX_QUEUE_SIZE 128
178#define DEFAULT_TX_QUEUE_SIZE 256
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200179
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200180
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200181/*
182 * RX/TX descriptors.
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200183 */
184#if defined(__BIG_ENDIAN)
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200185struct rx_desc {
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200186 u16 byte_cnt; /* Descriptor buffer byte count */
187 u16 buf_size; /* Buffer size */
188 u32 cmd_sts; /* Descriptor command status */
189 u32 next_desc_ptr; /* Next descriptor pointer */
190 u32 buf_ptr; /* Descriptor buffer pointer */
191};
192
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200193struct tx_desc {
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200194 u16 byte_cnt; /* buffer byte count */
195 u16 l4i_chk; /* CPU provided TCP checksum */
196 u32 cmd_sts; /* Command/status field */
197 u32 next_desc_ptr; /* Pointer to next descriptor */
198 u32 buf_ptr; /* pointer to buffer for this descriptor*/
199};
200#elif defined(__LITTLE_ENDIAN)
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200201struct rx_desc {
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200202 u32 cmd_sts; /* Descriptor command status */
203 u16 buf_size; /* Buffer size */
204 u16 byte_cnt; /* Descriptor buffer byte count */
205 u32 buf_ptr; /* Descriptor buffer pointer */
206 u32 next_desc_ptr; /* Next descriptor pointer */
207};
208
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200209struct tx_desc {
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200210 u32 cmd_sts; /* Command/status field */
211 u16 l4i_chk; /* CPU provided TCP checksum */
212 u16 byte_cnt; /* buffer byte count */
213 u32 buf_ptr; /* pointer to buffer for this descriptor*/
214 u32 next_desc_ptr; /* Pointer to next descriptor */
215};
216#else
217#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
218#endif
219
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200220/* RX & TX descriptor command */
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200221#define BUFFER_OWNED_BY_DMA 0x80000000
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200222
223/* RX & TX descriptor status */
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200224#define ERROR_SUMMARY 0x00000001
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200225
226/* RX descriptor status */
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200227#define LAYER_4_CHECKSUM_OK 0x40000000
228#define RX_ENABLE_INTERRUPT 0x20000000
229#define RX_FIRST_DESC 0x08000000
230#define RX_LAST_DESC 0x04000000
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000231#define RX_IP_HDR_OK 0x02000000
232#define RX_PKT_IS_IPV4 0x01000000
233#define RX_PKT_IS_ETHERNETV2 0x00800000
234#define RX_PKT_LAYER4_TYPE_MASK 0x00600000
235#define RX_PKT_LAYER4_TYPE_TCP_IPV4 0x00000000
236#define RX_PKT_IS_VLAN_TAGGED 0x00080000
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200237
238/* TX descriptor command */
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200239#define TX_ENABLE_INTERRUPT 0x00800000
240#define GEN_CRC 0x00400000
241#define TX_FIRST_DESC 0x00200000
242#define TX_LAST_DESC 0x00100000
243#define ZERO_PADDING 0x00080000
244#define GEN_IP_V4_CHECKSUM 0x00040000
245#define GEN_TCP_UDP_CHECKSUM 0x00020000
246#define UDP_FRAME 0x00010000
Lennert Buytenheke32b6612008-07-24 06:22:59 +0200247#define MAC_HDR_EXTRA_4_BYTES 0x00008000
248#define MAC_HDR_EXTRA_8_BYTES 0x00000200
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200249
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200250#define TX_IHL_SHIFT 11
Lennert Buytenhek7ca72a32008-06-01 01:41:29 +0200251
252
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200253/* global *******************************************************************/
Lennert Buytenheke5371492008-06-01 02:18:13 +0200254struct mv643xx_eth_shared_private {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200255 /*
256 * Ethernet controller base address.
257 */
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200258 void __iomem *base;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200259
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200260 /*
Lennert Buytenhekfc0eb9f2008-08-26 12:56:56 +0200261 * Points at the right SMI instance to use.
262 */
263 struct mv643xx_eth_shared_private *smi;
264
265 /*
Lennert Buytenheked944932008-08-26 13:34:19 +0200266 * Provides access to local SMI interface.
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200267 */
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -0700268 struct mii_bus *smi_bus;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200269
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200270 /*
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +0200271 * If we have access to the error interrupt pin (which is
272 * somewhat misnamed as it not only reflects internal errors
273 * but also reflects SMI completion), use that to wait for
274 * SMI access completion instead of polling the SMI busy bit.
275 */
276 int err_interrupt;
277 wait_queue_head_t smi_busy_wait;
278
279 /*
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200280 * Per-port MBUS window access register value.
281 */
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200282 u32 win_protect;
283
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200284 /*
285 * Hardware-specific parameters.
286 */
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200287 unsigned int t_clk;
Lennert Buytenhek773fc3e2008-06-02 01:54:16 +0200288 int extended_rx_coal_limit;
Lennert Buytenhek457b1d52008-09-04 12:22:34 +0200289 int tx_bw_control;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200290};
291
Lennert Buytenhek457b1d52008-09-04 12:22:34 +0200292#define TX_BW_CONTROL_ABSENT 0
293#define TX_BW_CONTROL_OLD_LAYOUT 1
294#define TX_BW_CONTROL_NEW_LAYOUT 2
295
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +0000296static int mv643xx_eth_open(struct net_device *dev);
297static int mv643xx_eth_stop(struct net_device *dev);
298
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200299
300/* per-port *****************************************************************/
Lennert Buytenheke5371492008-06-01 02:18:13 +0200301struct mib_counters {
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200302 u64 good_octets_received;
303 u32 bad_octets_received;
304 u32 internal_mac_transmit_err;
305 u32 good_frames_received;
306 u32 bad_frames_received;
307 u32 broadcast_frames_received;
308 u32 multicast_frames_received;
309 u32 frames_64_octets;
310 u32 frames_65_to_127_octets;
311 u32 frames_128_to_255_octets;
312 u32 frames_256_to_511_octets;
313 u32 frames_512_to_1023_octets;
314 u32 frames_1024_to_max_octets;
315 u64 good_octets_sent;
316 u32 good_frames_sent;
317 u32 excessive_collision;
318 u32 multicast_frames_sent;
319 u32 broadcast_frames_sent;
320 u32 unrec_mac_control_received;
321 u32 fc_sent;
322 u32 good_fc_received;
323 u32 bad_fc_received;
324 u32 undersize_received;
325 u32 fragments_received;
326 u32 oversize_received;
327 u32 jabber_received;
328 u32 mac_receive_error;
329 u32 bad_crc_event;
330 u32 collision;
331 u32 late_collision;
332};
333
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000334struct lro_counters {
335 u32 lro_aggregated;
336 u32 lro_flushed;
337 u32 lro_no_desc;
338};
339
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200340struct rx_queue {
Lennert Buytenhek64da80a2008-06-02 01:01:26 +0200341 int index;
342
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200343 int rx_ring_size;
344
345 int rx_desc_count;
346 int rx_curr_desc;
347 int rx_used_desc;
348
349 struct rx_desc *rx_desc_area;
350 dma_addr_t rx_desc_dma;
351 int rx_desc_area_size;
352 struct sk_buff **rx_skb;
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000353
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000354 struct net_lro_mgr lro_mgr;
355 struct net_lro_desc lro_arr[8];
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200356};
357
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200358struct tx_queue {
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200359 int index;
360
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200361 int tx_ring_size;
362
363 int tx_desc_count;
364 int tx_curr_desc;
365 int tx_used_desc;
366
367 struct tx_desc *tx_desc_area;
368 dma_addr_t tx_desc_dma;
369 int tx_desc_area_size;
Lennert Buytenhek99ab08e2008-08-28 05:53:18 +0200370
371 struct sk_buff_head tx_skb;
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200372
373 unsigned long tx_packets;
374 unsigned long tx_bytes;
375 unsigned long tx_dropped;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200376};
377
Lennert Buytenheke5371492008-06-01 02:18:13 +0200378struct mv643xx_eth_private {
379 struct mv643xx_eth_shared_private *shared;
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800380 void __iomem *base;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200381 int port_num;
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200382
383 struct net_device *dev;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200384
Lennert Buytenheked944932008-08-26 13:34:19 +0200385 struct phy_device *phy;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200386
Lennert Buytenhek4ff34952008-09-19 05:04:57 +0200387 struct timer_list mib_counters_timer;
388 spinlock_t mib_counters_lock;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200389 struct mib_counters mib_counters;
Lennert Buytenhek4ff34952008-09-19 05:04:57 +0200390
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000391 struct lro_counters lro_counters;
392
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200393 struct work_struct tx_timeout_task;
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200394
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200395 struct napi_struct napi;
396 u8 work_link;
397 u8 work_tx;
398 u8 work_tx_end;
399 u8 work_rx;
400 u8 work_rx_refill;
401 u8 work_rx_oom;
402
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -0700403 int skb_size;
404 struct sk_buff_head rx_recycle;
405
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200406 /*
407 * RX state.
408 */
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +0000409 int rx_ring_size;
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200410 unsigned long rx_desc_sram_addr;
411 int rx_desc_sram_size;
Lennert Buytenhekf7981c12008-08-26 10:23:22 +0200412 int rxq_count;
Lennert Buytenhek2257e052008-08-24 04:33:36 +0200413 struct timer_list rx_oom;
Lennert Buytenhek64da80a2008-06-02 01:01:26 +0200414 struct rx_queue rxq[8];
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200415
416 /*
417 * TX state.
418 */
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +0000419 int tx_ring_size;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200420 unsigned long tx_desc_sram_addr;
421 int tx_desc_sram_size;
Lennert Buytenhekf7981c12008-08-26 10:23:22 +0200422 int txq_count;
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200423 struct tx_queue txq[8];
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200424};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Lennert Buytenhekfbd6a752007-10-19 16:03:46 +0200426
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200427/* port register accessors **************************************************/
Lennert Buytenheke5371492008-06-01 02:18:13 +0200428static inline u32 rdl(struct mv643xx_eth_private *mp, int offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429{
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200430 return readl(mp->shared->base + offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431}
432
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800433static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset)
434{
435 return readl(mp->base + offset);
436}
437
Lennert Buytenheke5371492008-06-01 02:18:13 +0200438static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439{
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200440 writel(data, mp->shared->base + offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441}
442
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800443static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data)
444{
445 writel(data, mp->base + offset);
446}
447
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200448
449/* rxq/txq helper functions *************************************************/
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200450static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451{
Lennert Buytenhek64da80a2008-06-02 01:01:26 +0200452 return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200453}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200455static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq)
456{
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200457 return container_of(txq, struct mv643xx_eth_private, txq[txq->index]);
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200458}
459
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200460static void rxq_enable(struct rx_queue *rxq)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200461{
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200462 struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800463 wrlp(mp, RXQ_COMMAND, 1 << rxq->index);
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200464}
Lennert Buytenhekc0d0f2c2008-03-18 11:34:34 -0700465
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200466static void rxq_disable(struct rx_queue *rxq)
467{
468 struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
Lennert Buytenhek64da80a2008-06-02 01:01:26 +0200469 u8 mask = 1 << rxq->index;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200470
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800471 wrlp(mp, RXQ_COMMAND, mask << 8);
472 while (rdlp(mp, RXQ_COMMAND) & mask)
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200473 udelay(10);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200474}
475
Lennert Buytenhek6b368f62008-07-11 19:38:34 +0200476static void txq_reset_hw_ptr(struct tx_queue *txq)
477{
478 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek6b368f62008-07-11 19:38:34 +0200479 u32 addr;
480
481 addr = (u32)txq->tx_desc_dma;
482 addr += txq->tx_curr_desc * sizeof(struct tx_desc);
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800483 wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr);
Lennert Buytenhek6b368f62008-07-11 19:38:34 +0200484}
485
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200486static void txq_enable(struct tx_queue *txq)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200487{
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200488 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800489 wrlp(mp, TXQ_COMMAND, 1 << txq->index);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200490}
491
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200492static void txq_disable(struct tx_queue *txq)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200493{
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200494 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200495 u8 mask = 1 << txq->index;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200496
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800497 wrlp(mp, TXQ_COMMAND, mask << 8);
498 while (rdlp(mp, TXQ_COMMAND) & mask)
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200499 udelay(10);
500}
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200501
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200502static void txq_maybe_wake(struct tx_queue *txq)
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200503{
504 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +0200505 struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200506
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200507 if (netif_tx_queue_stopped(nq)) {
508 __netif_tx_lock(nq, smp_processor_id());
509 if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1)
510 netif_tx_wake_queue(nq);
511 __netif_tx_unlock(nq);
512 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200513}
514
515
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200516/* rx napi ******************************************************************/
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000517static int
518mv643xx_get_skb_header(struct sk_buff *skb, void **iphdr, void **tcph,
519 u64 *hdr_flags, void *priv)
520{
521 unsigned long cmd_sts = (unsigned long)priv;
522
523 /*
524 * Make sure that this packet is Ethernet II, is not VLAN
525 * tagged, is IPv4, has a valid IP header, and is TCP.
526 */
527 if ((cmd_sts & (RX_IP_HDR_OK | RX_PKT_IS_IPV4 |
528 RX_PKT_IS_ETHERNETV2 | RX_PKT_LAYER4_TYPE_MASK |
529 RX_PKT_IS_VLAN_TAGGED)) !=
530 (RX_IP_HDR_OK | RX_PKT_IS_IPV4 |
531 RX_PKT_IS_ETHERNETV2 | RX_PKT_LAYER4_TYPE_TCP_IPV4))
532 return -1;
533
534 skb_reset_network_header(skb);
535 skb_set_transport_header(skb, ip_hdrlen(skb));
536 *iphdr = ip_hdr(skb);
537 *tcph = tcp_hdr(skb);
538 *hdr_flags = LRO_IPV4 | LRO_TCP;
539
540 return 0;
541}
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000542
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200543static int rxq_process(struct rx_queue *rxq, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544{
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200545 struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
546 struct net_device_stats *stats = &mp->dev->stats;
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000547 int lro_flush_needed;
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200548 int rx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000550 lro_flush_needed = 0;
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200551 rx = 0;
Lennert Buytenhek9e1f3772008-08-24 02:33:47 +0200552 while (rx < budget && rxq->rx_desc_count) {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200553 struct rx_desc *rx_desc;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200554 unsigned int cmd_sts;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200555 struct sk_buff *skb;
Lennert Buytenhek6b8f90c2008-09-14 15:50:32 +0200556 u16 byte_cnt;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200557
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200558 rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc];
Lennert Buytenhek96587662008-06-01 10:31:56 +0200559
560 cmd_sts = rx_desc->cmd_sts;
Lennert Buytenhek2257e052008-08-24 04:33:36 +0200561 if (cmd_sts & BUFFER_OWNED_BY_DMA)
Lennert Buytenhek96587662008-06-01 10:31:56 +0200562 break;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200563 rmb();
564
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200565 skb = rxq->rx_skb[rxq->rx_curr_desc];
566 rxq->rx_skb[rxq->rx_curr_desc] = NULL;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200567
Lennert Buytenhek9da78742008-08-23 23:45:28 +0200568 rxq->rx_curr_desc++;
569 if (rxq->rx_curr_desc == rxq->rx_ring_size)
570 rxq->rx_curr_desc = 0;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200571
Lennert Buytenhek3a499482008-08-24 07:19:48 +0200572 dma_unmap_single(NULL, rx_desc->buf_ptr,
Lennert Buytenhekabe78712008-08-24 03:00:20 +0200573 rx_desc->buf_size, DMA_FROM_DEVICE);
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200574 rxq->rx_desc_count--;
575 rx++;
Dale Farnsworthb1dd9ca2005-09-01 09:59:23 -0700576
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200577 mp->work_rx_refill |= 1 << rxq->index;
578
Lennert Buytenhek6b8f90c2008-09-14 15:50:32 +0200579 byte_cnt = rx_desc->byte_cnt;
580
Dale Farnsworth468d09f2006-03-03 10:04:39 -0700581 /*
582 * Update statistics.
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200583 *
584 * Note that the descriptor byte count includes 2 dummy
585 * bytes automatically inserted by the hardware at the
586 * start of the packet (which we don't count), and a 4
587 * byte CRC at the end of the packet (which we do count).
Dale Farnsworth468d09f2006-03-03 10:04:39 -0700588 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 stats->rx_packets++;
Lennert Buytenhek6b8f90c2008-09-14 15:50:32 +0200590 stats->rx_bytes += byte_cnt - 2;
Lennert Buytenhek96587662008-06-01 10:31:56 +0200591
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 /*
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200593 * In case we received a packet without first / last bits
594 * on, or the error summary bit is set, the packet needs
595 * to be dropped.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 */
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800597 if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY))
598 != (RX_FIRST_DESC | RX_LAST_DESC))
599 goto err;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200600
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800601 /*
602 * The -4 is for the CRC in the trailer of the
603 * received packet
604 */
605 skb_put(skb, byte_cnt - 2 - 4);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200606
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800607 if (cmd_sts & LAYER_4_CHECKSUM_OK)
608 skb->ip_summed = CHECKSUM_UNNECESSARY;
609 skb->protocol = eth_type_trans(skb, mp->dev);
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000610
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000611 if (skb->dev->features & NETIF_F_LRO &&
612 skb->ip_summed == CHECKSUM_UNNECESSARY) {
613 lro_receive_skb(&rxq->lro_mgr, skb, (void *)cmd_sts);
614 lro_flush_needed = 1;
615 } else
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000616 netif_receive_skb(skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800618 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800620err:
621 stats->rx_dropped++;
622
623 if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
624 (RX_FIRST_DESC | RX_LAST_DESC)) {
625 if (net_ratelimit())
626 dev_printk(KERN_ERR, &mp->dev->dev,
627 "received packet spanning "
628 "multiple descriptors\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 }
Lennert Buytenhekf61e5542008-11-20 03:58:46 -0800630
631 if (cmd_sts & ERROR_SUMMARY)
632 stats->rx_errors++;
633
634 dev_kfree_skb(skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 }
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200636
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000637 if (lro_flush_needed)
638 lro_flush_all(&rxq->lro_mgr);
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +0000639
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200640 if (rx < budget)
641 mp->work_rx &= ~(1 << rxq->index);
642
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200643 return rx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644}
645
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200646static int rxq_refill(struct rx_queue *rxq, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647{
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200648 struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200649 int refilled;
Lennert Buytenhek8a578112008-06-01 18:09:35 +0200650
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200651 refilled = 0;
652 while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) {
653 struct sk_buff *skb;
654 int unaligned;
655 int rx;
Lennert Buytenhek53771522008-11-20 03:59:04 -0800656 struct rx_desc *rx_desc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -0700658 skb = __skb_dequeue(&mp->rx_recycle);
659 if (skb == NULL)
660 skb = dev_alloc_skb(mp->skb_size +
661 dma_get_cache_alignment() - 1);
662
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200663 if (skb == NULL) {
664 mp->work_rx_oom |= 1 << rxq->index;
665 goto oom;
666 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200668 unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1);
669 if (unaligned)
670 skb_reserve(skb, dma_get_cache_alignment() - unaligned);
671
672 refilled++;
673 rxq->rx_desc_count++;
674
675 rx = rxq->rx_used_desc++;
676 if (rxq->rx_used_desc == rxq->rx_ring_size)
677 rxq->rx_used_desc = 0;
678
Lennert Buytenhek53771522008-11-20 03:59:04 -0800679 rx_desc = rxq->rx_desc_area + rx;
680
681 rx_desc->buf_ptr = dma_map_single(NULL, skb->data,
682 mp->skb_size, DMA_FROM_DEVICE);
683 rx_desc->buf_size = mp->skb_size;
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200684 rxq->rx_skb[rx] = skb;
685 wmb();
Lennert Buytenhek53771522008-11-20 03:59:04 -0800686 rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT;
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200687 wmb();
688
689 /*
690 * The hardware automatically prepends 2 bytes of
691 * dummy data to each received packet, so that the
692 * IP header ends up 16-byte aligned.
693 */
694 skb_reserve(skb, 2);
Lennert Buytenhek2257e052008-08-24 04:33:36 +0200695 }
696
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200697 if (refilled < budget)
698 mp->work_rx_refill &= ~(1 << rxq->index);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200700oom:
701 return refilled;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200704
705/* tx ***********************************************************************/
Paul Janzenf7ea3332006-01-16 16:52:13 -0700706static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb)
707{
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200708 int frag;
Paul Janzenf7ea3332006-01-16 16:52:13 -0700709
Dale Farnsworthb4de9052006-01-27 01:04:43 -0700710 for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200711 skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag];
712 if (fragp->size <= 8 && fragp->page_offset & 7)
Dale Farnsworthb4de9052006-01-27 01:04:43 -0700713 return 1;
714 }
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200715
Dale Farnsworthb4de9052006-01-27 01:04:43 -0700716 return 0;
Paul Janzenf7ea3332006-01-16 16:52:13 -0700717}
718
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200719static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb)
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700720{
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200721 int nr_frags = skb_shinfo(skb)->nr_frags;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700722 int frag;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700723
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200724 for (frag = 0; frag < nr_frags; frag++) {
725 skb_frag_t *this_frag;
726 int tx_index;
727 struct tx_desc *desc;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700728
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200729 this_frag = &skb_shinfo(skb)->frags[frag];
Lennert Buytenhek66823b92008-11-20 03:58:09 -0800730 tx_index = txq->tx_curr_desc++;
731 if (txq->tx_curr_desc == txq->tx_ring_size)
732 txq->tx_curr_desc = 0;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200733 desc = &txq->tx_desc_area[tx_index];
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700734
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200735 /*
736 * The last fragment will generate an interrupt
737 * which will free the skb on TX completion.
738 */
739 if (frag == nr_frags - 1) {
740 desc->cmd_sts = BUFFER_OWNED_BY_DMA |
741 ZERO_PADDING | TX_LAST_DESC |
742 TX_ENABLE_INTERRUPT;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200743 } else {
744 desc->cmd_sts = BUFFER_OWNED_BY_DMA;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200745 }
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700746
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700747 desc->l4i_chk = 0;
748 desc->byte_cnt = this_frag->size;
749 desc->buf_ptr = dma_map_page(NULL, this_frag->page,
750 this_frag->page_offset,
751 this_frag->size,
752 DMA_TO_DEVICE);
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700753 }
754}
755
Byron Bradley324ff2c2008-02-04 23:47:15 -0800756static inline __be16 sum16_as_be(__sum16 sum)
757{
758 return (__force __be16)sum;
759}
760
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200761static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb)
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700762{
Lennert Buytenhek8fa89bf2008-07-14 22:56:55 +0200763 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200764 int nr_frags = skb_shinfo(skb)->nr_frags;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700765 int tx_index;
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200766 struct tx_desc *desc;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700767 u32 cmd_sts;
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200768 u16 l4i_chk;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700769 int length;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700770
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200771 cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA;
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200772 l4i_chk = 0;
773
774 if (skb->ip_summed == CHECKSUM_PARTIAL) {
775 int tag_bytes;
776
777 BUG_ON(skb->protocol != htons(ETH_P_IP) &&
778 skb->protocol != htons(ETH_P_8021Q));
779
780 tag_bytes = (void *)ip_hdr(skb) - (void *)skb->data - ETH_HLEN;
781 if (unlikely(tag_bytes & ~12)) {
782 if (skb_checksum_help(skb) == 0)
783 goto no_csum;
784 kfree_skb(skb);
785 return 1;
786 }
787
788 if (tag_bytes & 4)
789 cmd_sts |= MAC_HDR_EXTRA_4_BYTES;
790 if (tag_bytes & 8)
791 cmd_sts |= MAC_HDR_EXTRA_8_BYTES;
792
793 cmd_sts |= GEN_TCP_UDP_CHECKSUM |
794 GEN_IP_V4_CHECKSUM |
795 ip_hdr(skb)->ihl << TX_IHL_SHIFT;
796
797 switch (ip_hdr(skb)->protocol) {
798 case IPPROTO_UDP:
799 cmd_sts |= UDP_FRAME;
800 l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check));
801 break;
802 case IPPROTO_TCP:
803 l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check));
804 break;
805 default:
806 BUG();
807 }
808 } else {
809no_csum:
810 /* Errata BTS #50, IHL must be 5 if no HW checksum */
811 cmd_sts |= 5 << TX_IHL_SHIFT;
812 }
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700813
Lennert Buytenhek66823b92008-11-20 03:58:09 -0800814 tx_index = txq->tx_curr_desc++;
815 if (txq->tx_curr_desc == txq->tx_ring_size)
816 txq->tx_curr_desc = 0;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200817 desc = &txq->tx_desc_area[tx_index];
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700818
Dale Farnsworthff561ee2006-03-03 10:02:51 -0700819 if (nr_frags) {
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200820 txq_submit_frag_skb(txq, skb);
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700821 length = skb_headlen(skb);
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700822 } else {
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +0200823 cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700824 length = skb->len;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700825 }
826
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200827 desc->l4i_chk = l4i_chk;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700828 desc->byte_cnt = length;
829 desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE);
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700830
Lennert Buytenhek99ab08e2008-08-28 05:53:18 +0200831 __skb_queue_tail(&txq->tx_skb, skb);
832
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700833 /* ensure all other descriptors are written before first cmd_sts */
834 wmb();
835 desc->cmd_sts = cmd_sts;
836
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200837 /* clear TX_END status */
838 mp->work_tx_end &= ~(1 << txq->index);
Lennert Buytenhek8fa89bf2008-07-14 22:56:55 +0200839
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700840 /* ensure all descriptors are written before poking hardware */
841 wmb();
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200842 txq_enable(txq);
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700843
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200844 txq->tx_desc_count += nr_frags + 1;
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200845
846 return 0;
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700847}
848
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200849static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850{
Lennert Buytenheke5371492008-06-01 02:18:13 +0200851 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +0200852 int queue;
Lennert Buytenhek13d64282008-06-01 20:51:22 +0200853 struct tx_queue *txq;
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +0200854 struct netdev_queue *nq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200856 queue = skb_get_queue_mapping(skb);
857 txq = mp->txq + queue;
858 nq = netdev_get_tx_queue(dev, queue);
859
Lennert Buytenhek4d64e712008-03-18 11:32:41 -0700860 if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) {
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200861 txq->tx_dropped++;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +0200862 dev_printk(KERN_DEBUG, &dev->dev,
863 "failed to linearize skb with tiny "
864 "unaligned fragment\n");
Lennert Buytenhekc0d0f2c2008-03-18 11:34:34 -0700865 return NETDEV_TX_BUSY;
Dale Farnsworth94843562006-04-11 18:24:26 -0700866 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867
Lennert Buytenhek17cd0a52008-08-24 05:33:55 +0200868 if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) {
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +0200869 if (net_ratelimit())
870 dev_printk(KERN_ERR, &dev->dev, "tx queue full?!\n");
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +0200871 kfree_skb(skb);
872 return NETDEV_TX_OK;
Lennert Buytenhek4d64e712008-03-18 11:32:41 -0700873 }
874
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200875 if (!txq_submit_skb(txq, skb)) {
876 int entries_left;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Lennert Buytenhek4df89bd2008-09-19 04:05:00 +0200878 txq->tx_bytes += skb->len;
879 txq->tx_packets++;
880 dev->trans_start = jiffies;
881
882 entries_left = txq->tx_ring_size - txq->tx_desc_count;
883 if (entries_left < MAX_SKB_FRAGS + 1)
884 netif_tx_stop_queue(nq);
885 }
Dale Farnsworthc8aaea22006-03-03 10:02:05 -0700886
Lennert Buytenhekc0d0f2c2008-03-18 11:34:34 -0700887 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888}
889
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +0200890
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200891/* tx napi ******************************************************************/
892static void txq_kick(struct tx_queue *txq)
893{
894 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200895 struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200896 u32 hw_desc_ptr;
897 u32 expected_ptr;
898
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200899 __netif_tx_lock(nq, smp_processor_id());
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200900
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800901 if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index))
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200902 goto out;
903
Lennert Buytenhek37a60842008-11-20 03:57:36 -0800904 hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index));
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200905 expected_ptr = (u32)txq->tx_desc_dma +
906 txq->tx_curr_desc * sizeof(struct tx_desc);
907
908 if (hw_desc_ptr != expected_ptr)
909 txq_enable(txq);
910
911out:
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200912 __netif_tx_unlock(nq);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200913
914 mp->work_tx_end &= ~(1 << txq->index);
915}
916
917static int txq_reclaim(struct tx_queue *txq, int budget, int force)
918{
919 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200920 struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200921 int reclaimed;
922
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200923 __netif_tx_lock(nq, smp_processor_id());
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200924
925 reclaimed = 0;
926 while (reclaimed < budget && txq->tx_desc_count > 0) {
927 int tx_index;
928 struct tx_desc *desc;
929 u32 cmd_sts;
930 struct sk_buff *skb;
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200931
932 tx_index = txq->tx_used_desc;
933 desc = &txq->tx_desc_area[tx_index];
934 cmd_sts = desc->cmd_sts;
935
936 if (cmd_sts & BUFFER_OWNED_BY_DMA) {
937 if (!force)
938 break;
939 desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA;
940 }
941
942 txq->tx_used_desc = tx_index + 1;
943 if (txq->tx_used_desc == txq->tx_ring_size)
944 txq->tx_used_desc = 0;
945
946 reclaimed++;
947 txq->tx_desc_count--;
948
Lennert Buytenhek99ab08e2008-08-28 05:53:18 +0200949 skb = NULL;
950 if (cmd_sts & TX_LAST_DESC)
951 skb = __skb_dequeue(&txq->tx_skb);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200952
953 if (cmd_sts & ERROR_SUMMARY) {
954 dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n");
955 mp->dev->stats.tx_errors++;
956 }
957
Lennert Buytenheka4189502008-09-13 04:16:15 +0200958 if (cmd_sts & TX_FIRST_DESC) {
959 dma_unmap_single(NULL, desc->buf_ptr,
960 desc->byte_cnt, DMA_TO_DEVICE);
961 } else {
962 dma_unmap_page(NULL, desc->buf_ptr,
963 desc->byte_cnt, DMA_TO_DEVICE);
964 }
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200965
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -0700966 if (skb != NULL) {
967 if (skb_queue_len(&mp->rx_recycle) <
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +0000968 mp->rx_ring_size &&
Lennert Buytenhek11b4aa02008-11-18 04:28:58 +0000969 skb_recycle_check(skb, mp->skb_size +
970 dma_get_cache_alignment() - 1))
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -0700971 __skb_queue_head(&mp->rx_recycle, skb);
972 else
973 dev_kfree_skb(skb);
974 }
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200975 }
976
Lennert Buytenhek8fd89212008-08-28 08:26:28 +0200977 __netif_tx_unlock(nq);
978
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200979 if (reclaimed < budget)
980 mp->work_tx &= ~(1 << txq->index);
981
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +0200982 return reclaimed;
983}
984
985
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +0200986/* tx rate control **********************************************************/
987/*
988 * Set total maximum TX rate (shared by all TX queues for this port)
989 * to 'rate' bits per second, with a maximum burst of 'burst' bytes.
990 */
991static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst)
992{
993 int token_rate;
994 int mtu;
995 int bucket_size;
996
997 token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
998 if (token_rate > 1023)
999 token_rate = 1023;
1000
1001 mtu = (mp->dev->mtu + 255) >> 8;
1002 if (mtu > 63)
1003 mtu = 63;
1004
1005 bucket_size = (burst + 255) >> 8;
1006 if (bucket_size > 65535)
1007 bucket_size = 65535;
1008
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001009 switch (mp->shared->tx_bw_control) {
1010 case TX_BW_CONTROL_OLD_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001011 wrlp(mp, TX_BW_RATE, token_rate);
1012 wrlp(mp, TX_BW_MTU, mtu);
1013 wrlp(mp, TX_BW_BURST, bucket_size);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001014 break;
1015 case TX_BW_CONTROL_NEW_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001016 wrlp(mp, TX_BW_RATE_MOVED, token_rate);
1017 wrlp(mp, TX_BW_MTU_MOVED, mtu);
1018 wrlp(mp, TX_BW_BURST_MOVED, bucket_size);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001019 break;
Lennert Buytenhek1e881592008-06-02 01:57:36 +02001020 }
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001021}
1022
1023static void txq_set_rate(struct tx_queue *txq, int rate, int burst)
1024{
1025 struct mv643xx_eth_private *mp = txq_to_mp(txq);
1026 int token_rate;
1027 int bucket_size;
1028
1029 token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
1030 if (token_rate > 1023)
1031 token_rate = 1023;
1032
1033 bucket_size = (burst + 255) >> 8;
1034 if (bucket_size > 65535)
1035 bucket_size = 65535;
1036
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001037 wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14);
1038 wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate);
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001039}
1040
1041static void txq_set_fixed_prio_mode(struct tx_queue *txq)
1042{
1043 struct mv643xx_eth_private *mp = txq_to_mp(txq);
1044 int off;
1045 u32 val;
1046
1047 /*
1048 * Turn on fixed priority mode.
1049 */
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001050 off = 0;
1051 switch (mp->shared->tx_bw_control) {
1052 case TX_BW_CONTROL_OLD_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001053 off = TXQ_FIX_PRIO_CONF;
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001054 break;
1055 case TX_BW_CONTROL_NEW_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001056 off = TXQ_FIX_PRIO_CONF_MOVED;
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001057 break;
1058 }
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001059
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001060 if (off) {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001061 val = rdlp(mp, off);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001062 val |= 1 << txq->index;
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001063 wrlp(mp, off, val);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001064 }
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001065}
1066
1067static void txq_set_wrr(struct tx_queue *txq, int weight)
1068{
1069 struct mv643xx_eth_private *mp = txq_to_mp(txq);
1070 int off;
1071 u32 val;
1072
1073 /*
1074 * Turn off fixed priority mode.
1075 */
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001076 off = 0;
1077 switch (mp->shared->tx_bw_control) {
1078 case TX_BW_CONTROL_OLD_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001079 off = TXQ_FIX_PRIO_CONF;
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001080 break;
1081 case TX_BW_CONTROL_NEW_LAYOUT:
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001082 off = TXQ_FIX_PRIO_CONF_MOVED;
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001083 break;
1084 }
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001085
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001086 if (off) {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001087 val = rdlp(mp, off);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001088 val &= ~(1 << txq->index);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001089 wrlp(mp, off, val);
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001090
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001091 /*
1092 * Configure WRR weight for this queue.
1093 */
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001094
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001095 val = rdlp(mp, off);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001096 val = (val & ~0xff) | (weight & 0xff);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001097 wrlp(mp, TXQ_BW_WRR_CONF(txq->index), val);
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02001098 }
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02001099}
1100
1101
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001102/* mii management interface *************************************************/
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001103static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001104{
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001105 struct mv643xx_eth_shared_private *msp = dev_id;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001106
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001107 if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) {
1108 writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE);
1109 wake_up(&msp->smi_busy_wait);
1110 return IRQ_HANDLED;
1111 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001112
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001113 return IRQ_NONE;
1114}
1115
1116static int smi_is_done(struct mv643xx_eth_shared_private *msp)
1117{
1118 return !(readl(msp->base + SMI_REG) & SMI_BUSY);
1119}
1120
1121static int smi_wait_ready(struct mv643xx_eth_shared_private *msp)
1122{
1123 if (msp->err_interrupt == NO_IRQ) {
1124 int i;
1125
1126 for (i = 0; !smi_is_done(msp); i++) {
1127 if (i == 10)
1128 return -ETIMEDOUT;
1129 msleep(10);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001130 }
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001131
1132 return 0;
1133 }
1134
Lennert Buytenhekee044482008-11-01 06:32:20 +01001135 if (!smi_is_done(msp)) {
1136 wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
1137 msecs_to_jiffies(100));
1138 if (!smi_is_done(msp))
1139 return -ETIMEDOUT;
1140 }
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001141
1142 return 0;
1143}
1144
Lennert Buytenheked944932008-08-26 13:34:19 +02001145static int smi_bus_read(struct mii_bus *bus, int addr, int reg)
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001146{
Lennert Buytenheked944932008-08-26 13:34:19 +02001147 struct mv643xx_eth_shared_private *msp = bus->priv;
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001148 void __iomem *smi_reg = msp->base + SMI_REG;
1149 int ret;
1150
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001151 if (smi_wait_ready(msp)) {
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001152 printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
Lennert Buytenheked944932008-08-26 13:34:19 +02001153 return -ETIMEDOUT;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001154 }
1155
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001156 writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001157
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001158 if (smi_wait_ready(msp)) {
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001159 printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
Lennert Buytenheked944932008-08-26 13:34:19 +02001160 return -ETIMEDOUT;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001161 }
1162
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001163 ret = readl(smi_reg);
1164 if (!(ret & SMI_READ_VALID)) {
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001165 printk(KERN_WARNING "mv643xx_eth: SMI bus read not valid\n");
Lennert Buytenheked944932008-08-26 13:34:19 +02001166 return -ENODEV;
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001167 }
1168
Lennert Buytenheked944932008-08-26 13:34:19 +02001169 return ret & 0xffff;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001170}
1171
Lennert Buytenheked944932008-08-26 13:34:19 +02001172static int smi_bus_write(struct mii_bus *bus, int addr, int reg, u16 val)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001173{
Lennert Buytenheked944932008-08-26 13:34:19 +02001174 struct mv643xx_eth_shared_private *msp = bus->priv;
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001175 void __iomem *smi_reg = msp->base + SMI_REG;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001176
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001177 if (smi_wait_ready(msp)) {
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001178 printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001179 return -ETIMEDOUT;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001180 }
1181
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001182 writel(SMI_OPCODE_WRITE | (reg << 21) |
Lennert Buytenheked944932008-08-26 13:34:19 +02001183 (addr << 16) | (val & 0xffff), smi_reg);
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001184
Lennert Buytenheked944932008-08-26 13:34:19 +02001185 if (smi_wait_ready(msp)) {
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001186 printk(KERN_WARNING "mv643xx_eth: SMI bus busy timeout\n");
Lennert Buytenheked944932008-08-26 13:34:19 +02001187 return -ETIMEDOUT;
1188 }
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02001189
1190 return 0;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001191}
1192
1193
Lennert Buytenhek8fd89212008-08-28 08:26:28 +02001194/* statistics ***************************************************************/
1195static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev)
1196{
1197 struct mv643xx_eth_private *mp = netdev_priv(dev);
1198 struct net_device_stats *stats = &dev->stats;
1199 unsigned long tx_packets = 0;
1200 unsigned long tx_bytes = 0;
1201 unsigned long tx_dropped = 0;
1202 int i;
1203
1204 for (i = 0; i < mp->txq_count; i++) {
1205 struct tx_queue *txq = mp->txq + i;
1206
1207 tx_packets += txq->tx_packets;
1208 tx_bytes += txq->tx_bytes;
1209 tx_dropped += txq->tx_dropped;
1210 }
1211
1212 stats->tx_packets = tx_packets;
1213 stats->tx_bytes = tx_bytes;
1214 stats->tx_dropped = tx_dropped;
1215
1216 return stats;
1217}
1218
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001219static void mv643xx_eth_grab_lro_stats(struct mv643xx_eth_private *mp)
1220{
1221 u32 lro_aggregated = 0;
1222 u32 lro_flushed = 0;
1223 u32 lro_no_desc = 0;
1224 int i;
1225
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001226 for (i = 0; i < mp->rxq_count; i++) {
1227 struct rx_queue *rxq = mp->rxq + i;
1228
1229 lro_aggregated += rxq->lro_mgr.stats.aggregated;
1230 lro_flushed += rxq->lro_mgr.stats.flushed;
1231 lro_no_desc += rxq->lro_mgr.stats.no_desc;
1232 }
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001233
1234 mp->lro_counters.lro_aggregated = lro_aggregated;
1235 mp->lro_counters.lro_flushed = lro_flushed;
1236 mp->lro_counters.lro_no_desc = lro_no_desc;
1237}
1238
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001239static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001240{
Lennert Buytenhek3cb46672008-06-01 01:03:23 +02001241 return rdl(mp, MIB_COUNTERS(mp->port_num) + offset);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001242}
1243
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001244static void mib_counters_clear(struct mv643xx_eth_private *mp)
1245{
1246 int i;
1247
1248 for (i = 0; i < 0x80; i += 4)
1249 mib_read(mp, i);
1250}
1251
1252static void mib_counters_update(struct mv643xx_eth_private *mp)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001253{
Lennert Buytenheke5371492008-06-01 02:18:13 +02001254 struct mib_counters *p = &mp->mib_counters;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001255
Sebastian Siewior57e8f262009-02-16 11:28:15 +00001256 spin_lock_bh(&mp->mib_counters_lock);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001257 p->good_octets_received += mib_read(mp, 0x00);
1258 p->good_octets_received += (u64)mib_read(mp, 0x04) << 32;
1259 p->bad_octets_received += mib_read(mp, 0x08);
1260 p->internal_mac_transmit_err += mib_read(mp, 0x0c);
1261 p->good_frames_received += mib_read(mp, 0x10);
1262 p->bad_frames_received += mib_read(mp, 0x14);
1263 p->broadcast_frames_received += mib_read(mp, 0x18);
1264 p->multicast_frames_received += mib_read(mp, 0x1c);
1265 p->frames_64_octets += mib_read(mp, 0x20);
1266 p->frames_65_to_127_octets += mib_read(mp, 0x24);
1267 p->frames_128_to_255_octets += mib_read(mp, 0x28);
1268 p->frames_256_to_511_octets += mib_read(mp, 0x2c);
1269 p->frames_512_to_1023_octets += mib_read(mp, 0x30);
1270 p->frames_1024_to_max_octets += mib_read(mp, 0x34);
1271 p->good_octets_sent += mib_read(mp, 0x38);
1272 p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32;
1273 p->good_frames_sent += mib_read(mp, 0x40);
1274 p->excessive_collision += mib_read(mp, 0x44);
1275 p->multicast_frames_sent += mib_read(mp, 0x48);
1276 p->broadcast_frames_sent += mib_read(mp, 0x4c);
1277 p->unrec_mac_control_received += mib_read(mp, 0x50);
1278 p->fc_sent += mib_read(mp, 0x54);
1279 p->good_fc_received += mib_read(mp, 0x58);
1280 p->bad_fc_received += mib_read(mp, 0x5c);
1281 p->undersize_received += mib_read(mp, 0x60);
1282 p->fragments_received += mib_read(mp, 0x64);
1283 p->oversize_received += mib_read(mp, 0x68);
1284 p->jabber_received += mib_read(mp, 0x6c);
1285 p->mac_receive_error += mib_read(mp, 0x70);
1286 p->bad_crc_event += mib_read(mp, 0x74);
1287 p->collision += mib_read(mp, 0x78);
1288 p->late_collision += mib_read(mp, 0x7c);
Sebastian Siewior57e8f262009-02-16 11:28:15 +00001289 spin_unlock_bh(&mp->mib_counters_lock);
Lennert Buytenhek4ff34952008-09-19 05:04:57 +02001290
1291 mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
1292}
1293
1294static void mib_counters_timer_wrapper(unsigned long _mp)
1295{
1296 struct mv643xx_eth_private *mp = (void *)_mp;
1297
1298 mib_counters_update(mp);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001299}
1300
1301
Lennert Buytenhek3e508032009-02-12 14:07:09 +00001302/* interrupt coalescing *****************************************************/
1303/*
1304 * Hardware coalescing parameters are set in units of 64 t_clk
1305 * cycles. I.e.:
1306 *
1307 * coal_delay_in_usec = 64000000 * register_value / t_clk_rate
1308 *
1309 * register_value = coal_delay_in_usec * t_clk_rate / 64000000
1310 *
1311 * In the ->set*() methods, we round the computed register value
1312 * to the nearest integer.
1313 */
1314static unsigned int get_rx_coal(struct mv643xx_eth_private *mp)
1315{
1316 u32 val = rdlp(mp, SDMA_CONFIG);
1317 u64 temp;
1318
1319 if (mp->shared->extended_rx_coal_limit)
1320 temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7);
1321 else
1322 temp = (val & 0x003fff00) >> 8;
1323
1324 temp *= 64000000;
1325 do_div(temp, mp->shared->t_clk);
1326
1327 return (unsigned int)temp;
1328}
1329
1330static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
1331{
1332 u64 temp;
1333 u32 val;
1334
1335 temp = (u64)usec * mp->shared->t_clk;
1336 temp += 31999999;
1337 do_div(temp, 64000000);
1338
1339 val = rdlp(mp, SDMA_CONFIG);
1340 if (mp->shared->extended_rx_coal_limit) {
1341 if (temp > 0xffff)
1342 temp = 0xffff;
1343 val &= ~0x023fff80;
1344 val |= (temp & 0x8000) << 10;
1345 val |= (temp & 0x7fff) << 7;
1346 } else {
1347 if (temp > 0x3fff)
1348 temp = 0x3fff;
1349 val &= ~0x003fff00;
1350 val |= (temp & 0x3fff) << 8;
1351 }
1352 wrlp(mp, SDMA_CONFIG, val);
1353}
1354
1355static unsigned int get_tx_coal(struct mv643xx_eth_private *mp)
1356{
1357 u64 temp;
1358
1359 temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4;
1360 temp *= 64000000;
1361 do_div(temp, mp->shared->t_clk);
1362
1363 return (unsigned int)temp;
1364}
1365
1366static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
1367{
1368 u64 temp;
1369
1370 temp = (u64)usec * mp->shared->t_clk;
1371 temp += 31999999;
1372 do_div(temp, 64000000);
1373
1374 if (temp > 0x3fff)
1375 temp = 0x3fff;
1376
1377 wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4);
1378}
1379
1380
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001381/* ethtool ******************************************************************/
Lennert Buytenheke5371492008-06-01 02:18:13 +02001382struct mv643xx_eth_stats {
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001383 char stat_string[ETH_GSTRING_LEN];
1384 int sizeof_stat;
Lennert Buytenhek16820052008-06-01 11:40:29 +02001385 int netdev_off;
1386 int mp_off;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001387};
1388
Lennert Buytenhek16820052008-06-01 11:40:29 +02001389#define SSTAT(m) \
1390 { #m, FIELD_SIZEOF(struct net_device_stats, m), \
1391 offsetof(struct net_device, stats.m), -1 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001392
Lennert Buytenhek16820052008-06-01 11:40:29 +02001393#define MIBSTAT(m) \
1394 { #m, FIELD_SIZEOF(struct mib_counters, m), \
1395 -1, offsetof(struct mv643xx_eth_private, mib_counters.m) }
1396
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001397#define LROSTAT(m) \
1398 { #m, FIELD_SIZEOF(struct lro_counters, m), \
1399 -1, offsetof(struct mv643xx_eth_private, lro_counters.m) }
1400
Lennert Buytenhek16820052008-06-01 11:40:29 +02001401static const struct mv643xx_eth_stats mv643xx_eth_stats[] = {
1402 SSTAT(rx_packets),
1403 SSTAT(tx_packets),
1404 SSTAT(rx_bytes),
1405 SSTAT(tx_bytes),
1406 SSTAT(rx_errors),
1407 SSTAT(tx_errors),
1408 SSTAT(rx_dropped),
1409 SSTAT(tx_dropped),
1410 MIBSTAT(good_octets_received),
1411 MIBSTAT(bad_octets_received),
1412 MIBSTAT(internal_mac_transmit_err),
1413 MIBSTAT(good_frames_received),
1414 MIBSTAT(bad_frames_received),
1415 MIBSTAT(broadcast_frames_received),
1416 MIBSTAT(multicast_frames_received),
1417 MIBSTAT(frames_64_octets),
1418 MIBSTAT(frames_65_to_127_octets),
1419 MIBSTAT(frames_128_to_255_octets),
1420 MIBSTAT(frames_256_to_511_octets),
1421 MIBSTAT(frames_512_to_1023_octets),
1422 MIBSTAT(frames_1024_to_max_octets),
1423 MIBSTAT(good_octets_sent),
1424 MIBSTAT(good_frames_sent),
1425 MIBSTAT(excessive_collision),
1426 MIBSTAT(multicast_frames_sent),
1427 MIBSTAT(broadcast_frames_sent),
1428 MIBSTAT(unrec_mac_control_received),
1429 MIBSTAT(fc_sent),
1430 MIBSTAT(good_fc_received),
1431 MIBSTAT(bad_fc_received),
1432 MIBSTAT(undersize_received),
1433 MIBSTAT(fragments_received),
1434 MIBSTAT(oversize_received),
1435 MIBSTAT(jabber_received),
1436 MIBSTAT(mac_receive_error),
1437 MIBSTAT(bad_crc_event),
1438 MIBSTAT(collision),
1439 MIBSTAT(late_collision),
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001440 LROSTAT(lro_aggregated),
1441 LROSTAT(lro_flushed),
1442 LROSTAT(lro_no_desc),
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001443};
1444
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001445static int
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001446mv643xx_eth_get_settings_phy(struct mv643xx_eth_private *mp,
1447 struct ethtool_cmd *cmd)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001448{
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001449 int err;
1450
Lennert Buytenheked944932008-08-26 13:34:19 +02001451 err = phy_read_status(mp->phy);
1452 if (err == 0)
1453 err = phy_ethtool_gset(mp->phy, cmd);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001454
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001455 /*
1456 * The MAC does not support 1000baseT_Half.
1457 */
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001458 cmd->supported &= ~SUPPORTED_1000baseT_Half;
1459 cmd->advertising &= ~ADVERTISED_1000baseT_Half;
1460
1461 return err;
1462}
1463
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001464static int
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001465mv643xx_eth_get_settings_phyless(struct mv643xx_eth_private *mp,
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001466 struct ethtool_cmd *cmd)
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02001467{
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02001468 u32 port_status;
1469
Lennert Buytenhek37a60842008-11-20 03:57:36 -08001470 port_status = rdlp(mp, PORT_STATUS);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02001471
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02001472 cmd->supported = SUPPORTED_MII;
1473 cmd->advertising = ADVERTISED_MII;
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02001474 switch (port_status & PORT_SPEED_MASK) {
1475 case PORT_SPEED_10:
1476 cmd->speed = SPEED_10;
1477 break;
1478 case PORT_SPEED_100:
1479 cmd->speed = SPEED_100;
1480 break;
1481 case PORT_SPEED_1000:
1482 cmd->speed = SPEED_1000;
1483 break;
1484 default:
1485 cmd->speed = -1;
1486 break;
1487 }
1488 cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF;
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02001489 cmd->port = PORT_MII;
1490 cmd->phy_address = 0;
1491 cmd->transceiver = XCVR_INTERNAL;
1492 cmd->autoneg = AUTONEG_DISABLE;
1493 cmd->maxtxpkt = 1;
1494 cmd->maxrxpkt = 1;
1495
1496 return 0;
1497}
1498
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001499static int
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001500mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1501{
1502 struct mv643xx_eth_private *mp = netdev_priv(dev);
1503
1504 if (mp->phy != NULL)
1505 return mv643xx_eth_get_settings_phy(mp, cmd);
1506 else
1507 return mv643xx_eth_get_settings_phyless(mp, cmd);
1508}
1509
1510static int
Lennert Buytenhek10a99482008-11-20 03:57:16 -08001511mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001512{
Lennert Buytenheke5371492008-06-01 02:18:13 +02001513 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001514
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001515 if (mp->phy == NULL)
1516 return -EINVAL;
1517
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001518 /*
1519 * The MAC does not support 1000baseT_Half.
1520 */
1521 cmd->advertising &= ~ADVERTISED_1000baseT_Half;
1522
Lennert Buytenheked944932008-08-26 13:34:19 +02001523 return phy_ethtool_sset(mp->phy, cmd);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001524}
1525
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001526static void mv643xx_eth_get_drvinfo(struct net_device *dev,
1527 struct ethtool_drvinfo *drvinfo)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001528{
Lennert Buytenheke5371492008-06-01 02:18:13 +02001529 strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32);
1530 strncpy(drvinfo->version, mv643xx_eth_driver_version, 32);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001531 strncpy(drvinfo->fw_version, "N/A", 32);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001532 strncpy(drvinfo->bus_info, "platform", 32);
Lennert Buytenhek16820052008-06-01 11:40:29 +02001533 drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001534}
1535
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001536static int mv643xx_eth_nway_reset(struct net_device *dev)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001537{
Lennert Buytenheke5371492008-06-01 02:18:13 +02001538 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001539
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001540 if (mp->phy == NULL)
1541 return -EINVAL;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001542
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00001543 return genphy_restart_aneg(mp->phy);
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02001544}
1545
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001546static u32 mv643xx_eth_get_link(struct net_device *dev)
1547{
Lennert Buytenheked944932008-08-26 13:34:19 +02001548 return !!netif_carrier_ok(dev);
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02001549}
1550
Lennert Buytenhek3e508032009-02-12 14:07:09 +00001551static int
1552mv643xx_eth_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1553{
1554 struct mv643xx_eth_private *mp = netdev_priv(dev);
1555
1556 ec->rx_coalesce_usecs = get_rx_coal(mp);
1557 ec->tx_coalesce_usecs = get_tx_coal(mp);
1558
1559 return 0;
1560}
1561
1562static int
1563mv643xx_eth_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1564{
1565 struct mv643xx_eth_private *mp = netdev_priv(dev);
1566
1567 set_rx_coal(mp, ec->rx_coalesce_usecs);
1568 set_tx_coal(mp, ec->tx_coalesce_usecs);
1569
1570 return 0;
1571}
1572
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00001573static void
1574mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
1575{
1576 struct mv643xx_eth_private *mp = netdev_priv(dev);
1577
1578 er->rx_max_pending = 4096;
1579 er->tx_max_pending = 4096;
1580 er->rx_mini_max_pending = 0;
1581 er->rx_jumbo_max_pending = 0;
1582
1583 er->rx_pending = mp->rx_ring_size;
1584 er->tx_pending = mp->tx_ring_size;
1585 er->rx_mini_pending = 0;
1586 er->rx_jumbo_pending = 0;
1587}
1588
1589static int
1590mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
1591{
1592 struct mv643xx_eth_private *mp = netdev_priv(dev);
1593
1594 if (er->rx_mini_pending || er->rx_jumbo_pending)
1595 return -EINVAL;
1596
1597 mp->rx_ring_size = er->rx_pending < 4096 ? er->rx_pending : 4096;
1598 mp->tx_ring_size = er->tx_pending < 4096 ? er->tx_pending : 4096;
1599
1600 if (netif_running(dev)) {
1601 mv643xx_eth_stop(dev);
1602 if (mv643xx_eth_open(dev)) {
1603 dev_printk(KERN_ERR, &dev->dev,
1604 "fatal error on re-opening device after "
1605 "ring param change\n");
1606 return -ENOMEM;
1607 }
1608 }
1609
1610 return 0;
1611}
1612
Lennert Buytenhekd888b372009-02-12 14:07:56 +00001613static u32
1614mv643xx_eth_get_rx_csum(struct net_device *dev)
1615{
1616 struct mv643xx_eth_private *mp = netdev_priv(dev);
1617
1618 return !!(rdlp(mp, PORT_CONFIG) & 0x02000000);
1619}
1620
1621static int
1622mv643xx_eth_set_rx_csum(struct net_device *dev, u32 rx_csum)
1623{
1624 struct mv643xx_eth_private *mp = netdev_priv(dev);
1625
1626 wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000);
1627
1628 return 0;
1629}
1630
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001631static void mv643xx_eth_get_strings(struct net_device *dev,
1632 uint32_t stringset, uint8_t *data)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001633{
1634 int i;
1635
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001636 if (stringset == ETH_SS_STATS) {
1637 for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001638 memcpy(data + i * ETH_GSTRING_LEN,
Lennert Buytenhek16820052008-06-01 11:40:29 +02001639 mv643xx_eth_stats[i].stat_string,
Lennert Buytenheke5371492008-06-01 02:18:13 +02001640 ETH_GSTRING_LEN);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001641 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001642 }
1643}
1644
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001645static void mv643xx_eth_get_ethtool_stats(struct net_device *dev,
1646 struct ethtool_stats *stats,
1647 uint64_t *data)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001648{
Lennert Buytenhekb9873842008-08-24 05:59:16 +02001649 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001650 int i;
1651
Lennert Buytenhek8fd89212008-08-28 08:26:28 +02001652 mv643xx_eth_get_stats(dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001653 mib_counters_update(mp);
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001654 mv643xx_eth_grab_lro_stats(mp);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001655
Lennert Buytenhek16820052008-06-01 11:40:29 +02001656 for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
1657 const struct mv643xx_eth_stats *stat;
1658 void *p;
1659
1660 stat = mv643xx_eth_stats + i;
1661
1662 if (stat->netdev_off >= 0)
1663 p = ((void *)mp->dev) + stat->netdev_off;
1664 else
1665 p = ((void *)mp) + stat->mp_off;
1666
1667 data[i] = (stat->sizeof_stat == 8) ?
1668 *(uint64_t *)p : *(uint32_t *)p;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001669 }
1670}
1671
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001672static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001673{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001674 if (sset == ETH_SS_STATS)
Lennert Buytenhek16820052008-06-01 11:40:29 +02001675 return ARRAY_SIZE(mv643xx_eth_stats);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001676
1677 return -EOPNOTSUPP;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001678}
1679
Lennert Buytenheke5371492008-06-01 02:18:13 +02001680static const struct ethtool_ops mv643xx_eth_ethtool_ops = {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001681 .get_settings = mv643xx_eth_get_settings,
1682 .set_settings = mv643xx_eth_set_settings,
1683 .get_drvinfo = mv643xx_eth_get_drvinfo,
1684 .nway_reset = mv643xx_eth_nway_reset,
1685 .get_link = mv643xx_eth_get_link,
Lennert Buytenhek3e508032009-02-12 14:07:09 +00001686 .get_coalesce = mv643xx_eth_get_coalesce,
1687 .set_coalesce = mv643xx_eth_set_coalesce,
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00001688 .get_ringparam = mv643xx_eth_get_ringparam,
1689 .set_ringparam = mv643xx_eth_set_ringparam,
Lennert Buytenhekd888b372009-02-12 14:07:56 +00001690 .get_rx_csum = mv643xx_eth_get_rx_csum,
1691 .set_rx_csum = mv643xx_eth_set_rx_csum,
Lennert Buytenhekb8df1842009-02-12 14:08:07 +00001692 .set_tx_csum = ethtool_op_set_tx_csum,
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001693 .set_sg = ethtool_op_set_sg,
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001694 .get_strings = mv643xx_eth_get_strings,
1695 .get_ethtool_stats = mv643xx_eth_get_ethtool_stats,
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001696 .get_flags = ethtool_op_get_flags,
1697 .set_flags = ethtool_op_set_flags,
Lennert Buytenheke5371492008-06-01 02:18:13 +02001698 .get_sset_count = mv643xx_eth_get_sset_count,
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001699};
1700
1701
1702/* address handling *********************************************************/
Lennert Buytenhek5daffe92008-06-01 02:52:41 +02001703static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001704{
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001705 unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH);
1706 unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001707
Lennert Buytenhek5daffe92008-06-01 02:52:41 +02001708 addr[0] = (mac_h >> 24) & 0xff;
1709 addr[1] = (mac_h >> 16) & 0xff;
1710 addr[2] = (mac_h >> 8) & 0xff;
1711 addr[3] = mac_h & 0xff;
1712 addr[4] = (mac_l >> 8) & 0xff;
1713 addr[5] = mac_l & 0xff;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001714}
1715
Lennert Buytenhek5daffe92008-06-01 02:52:41 +02001716static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001717{
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001718 wrlp(mp, MAC_ADDR_HIGH,
1719 (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]);
1720 wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001721}
1722
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001723static u32 uc_addr_filter_mask(struct net_device *dev)
1724{
1725 struct dev_addr_list *uc_ptr;
1726 u32 nibbles;
1727
1728 if (dev->flags & IFF_PROMISC)
1729 return 0;
1730
1731 nibbles = 1 << (dev->dev_addr[5] & 0x0f);
1732 for (uc_ptr = dev->uc_list; uc_ptr != NULL; uc_ptr = uc_ptr->next) {
1733 if (memcmp(dev->dev_addr, uc_ptr->da_addr, 5))
1734 return 0;
1735 if ((dev->dev_addr[5] ^ uc_ptr->da_addr[5]) & 0xf0)
1736 return 0;
1737
1738 nibbles |= 1 << (uc_ptr->da_addr[5] & 0x0f);
1739 }
1740
1741 return nibbles;
1742}
1743
1744static void mv643xx_eth_program_unicast_filter(struct net_device *dev)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001745{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001746 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001747 u32 port_config;
1748 u32 nibbles;
1749 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001750
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001751 uc_addr_set(mp, dev->dev_addr);
1752
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001753 port_config = rdlp(mp, PORT_CONFIG);
1754 nibbles = uc_addr_filter_mask(dev);
1755 if (!nibbles) {
1756 port_config |= UNICAST_PROMISCUOUS_MODE;
1757 wrlp(mp, PORT_CONFIG, port_config);
1758 return;
1759 }
1760
1761 for (i = 0; i < 16; i += 4) {
1762 int off = UNICAST_TABLE(mp->port_num) + i;
1763 u32 v;
1764
1765 v = 0;
1766 if (nibbles & 1)
1767 v |= 0x00000001;
1768 if (nibbles & 2)
1769 v |= 0x00000100;
1770 if (nibbles & 4)
1771 v |= 0x00010000;
1772 if (nibbles & 8)
1773 v |= 0x01000000;
1774 nibbles >>= 4;
1775
1776 wrl(mp, off, v);
1777 }
1778
1779 port_config &= ~UNICAST_PROMISCUOUS_MODE;
1780 wrlp(mp, PORT_CONFIG, port_config);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001781}
1782
Lennert Buytenhek69876562008-06-01 11:43:32 +02001783static int addr_crc(unsigned char *addr)
1784{
1785 int crc = 0;
1786 int i;
1787
1788 for (i = 0; i < 6; i++) {
1789 int j;
1790
1791 crc = (crc ^ addr[i]) << 8;
1792 for (j = 7; j >= 0; j--) {
1793 if (crc & (0x100 << j))
1794 crc ^= 0x107 << j;
1795 }
1796 }
1797
1798 return crc;
1799}
1800
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001801static void mv643xx_eth_program_multicast_filter(struct net_device *dev)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001802{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001803 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001804 u32 *mc_spec;
1805 u32 *mc_other;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001806 struct dev_addr_list *addr;
1807 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001808
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001809 if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001810 int port_num;
1811 u32 accept;
1812 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001813
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001814oom:
1815 port_num = mp->port_num;
1816 accept = 0x01010101;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001817 for (i = 0; i < 0x100; i += 4) {
1818 wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept);
1819 wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001820 }
1821 return;
1822 }
1823
Sebastian Siewior82a5bd62009-02-14 23:26:18 +00001824 mc_spec = kmalloc(0x200, GFP_ATOMIC);
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001825 if (mc_spec == NULL)
1826 goto oom;
1827 mc_other = mc_spec + (0x100 >> 2);
1828
1829 memset(mc_spec, 0, 0x100);
1830 memset(mc_other, 0, 0x100);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001831
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001832 for (addr = dev->mc_list; addr != NULL; addr = addr->next) {
1833 u8 *a = addr->da_addr;
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001834 u32 *table;
1835 int entry;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001836
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001837 if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) {
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001838 table = mc_spec;
1839 entry = a[5];
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001840 } else {
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001841 table = mc_other;
1842 entry = addr_crc(a);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001843 }
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001844
Lennert Buytenhek2b448332009-01-19 17:17:18 -08001845 table[entry >> 2] |= 1 << (8 * (entry & 3));
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02001846 }
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08001847
1848 for (i = 0; i < 0x100; i += 4) {
1849 wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, mc_spec[i >> 2]);
1850 wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, mc_other[i >> 2]);
1851 }
1852
1853 kfree(mc_spec);
1854}
1855
1856static void mv643xx_eth_set_rx_mode(struct net_device *dev)
1857{
1858 mv643xx_eth_program_unicast_filter(dev);
1859 mv643xx_eth_program_multicast_filter(dev);
1860}
1861
1862static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
1863{
1864 struct sockaddr *sa = addr;
1865
1866 memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
1867
1868 netif_addr_lock_bh(dev);
1869 mv643xx_eth_program_unicast_filter(dev);
1870 netif_addr_unlock_bh(dev);
1871
1872 return 0;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001873}
1874
1875
1876/* rx/tx queue initialisation ***********************************************/
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02001877static int rxq_init(struct mv643xx_eth_private *mp, int index)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001878{
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02001879 struct rx_queue *rxq = mp->rxq + index;
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001880 struct rx_desc *rx_desc;
1881 int size;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001882 int i;
1883
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02001884 rxq->index = index;
1885
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00001886 rxq->rx_ring_size = mp->rx_ring_size;
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001887
1888 rxq->rx_desc_count = 0;
1889 rxq->rx_curr_desc = 0;
1890 rxq->rx_used_desc = 0;
1891
1892 size = rxq->rx_ring_size * sizeof(struct rx_desc);
1893
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02001894 if (index == 0 && size <= mp->rx_desc_sram_size) {
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001895 rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr,
1896 mp->rx_desc_sram_size);
1897 rxq->rx_desc_dma = mp->rx_desc_sram_addr;
1898 } else {
1899 rxq->rx_desc_area = dma_alloc_coherent(NULL, size,
1900 &rxq->rx_desc_dma,
1901 GFP_KERNEL);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001902 }
1903
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001904 if (rxq->rx_desc_area == NULL) {
1905 dev_printk(KERN_ERR, &mp->dev->dev,
1906 "can't allocate rx ring (%d bytes)\n", size);
1907 goto out;
1908 }
1909 memset(rxq->rx_desc_area, 0, size);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001910
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001911 rxq->rx_desc_area_size = size;
1912 rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb),
1913 GFP_KERNEL);
1914 if (rxq->rx_skb == NULL) {
1915 dev_printk(KERN_ERR, &mp->dev->dev,
1916 "can't allocate rx skb ring\n");
1917 goto out_free;
1918 }
1919
1920 rx_desc = (struct rx_desc *)rxq->rx_desc_area;
1921 for (i = 0; i < rxq->rx_ring_size; i++) {
Lennert Buytenhek9da78742008-08-23 23:45:28 +02001922 int nexti;
1923
1924 nexti = i + 1;
1925 if (nexti == rxq->rx_ring_size)
1926 nexti = 0;
1927
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001928 rx_desc[i].next_desc_ptr = rxq->rx_desc_dma +
1929 nexti * sizeof(struct rx_desc);
1930 }
1931
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001932 rxq->lro_mgr.dev = mp->dev;
1933 memset(&rxq->lro_mgr.stats, 0, sizeof(rxq->lro_mgr.stats));
1934 rxq->lro_mgr.features = LRO_F_NAPI;
1935 rxq->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
1936 rxq->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
1937 rxq->lro_mgr.max_desc = ARRAY_SIZE(rxq->lro_arr);
1938 rxq->lro_mgr.max_aggr = 32;
1939 rxq->lro_mgr.frag_align_pad = 0;
1940 rxq->lro_mgr.lro_arr = rxq->lro_arr;
1941 rxq->lro_mgr.get_skb_header = mv643xx_get_skb_header;
1942
1943 memset(&rxq->lro_arr, 0, sizeof(rxq->lro_arr));
Lennert Buytenhekeaf5d592009-02-12 14:08:39 +00001944
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001945 return 0;
1946
1947
1948out_free:
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02001949 if (index == 0 && size <= mp->rx_desc_sram_size)
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001950 iounmap(rxq->rx_desc_area);
1951 else
1952 dma_free_coherent(NULL, size,
1953 rxq->rx_desc_area,
1954 rxq->rx_desc_dma);
1955
1956out:
1957 return -ENOMEM;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001958}
1959
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001960static void rxq_deinit(struct rx_queue *rxq)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001961{
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001962 struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
1963 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001964
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001965 rxq_disable(rxq);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001966
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001967 for (i = 0; i < rxq->rx_ring_size; i++) {
1968 if (rxq->rx_skb[i]) {
1969 dev_kfree_skb(rxq->rx_skb[i]);
1970 rxq->rx_desc_count--;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001971 }
1972 }
1973
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001974 if (rxq->rx_desc_count) {
1975 dev_printk(KERN_ERR, &mp->dev->dev,
1976 "error freeing rx ring -- %d skbs stuck\n",
1977 rxq->rx_desc_count);
1978 }
1979
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02001980 if (rxq->index == 0 &&
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02001981 rxq->rx_desc_area_size <= mp->rx_desc_sram_size)
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001982 iounmap(rxq->rx_desc_area);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001983 else
Lennert Buytenhek8a578112008-06-01 18:09:35 +02001984 dma_free_coherent(NULL, rxq->rx_desc_area_size,
1985 rxq->rx_desc_area, rxq->rx_desc_dma);
1986
1987 kfree(rxq->rx_skb);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001988}
1989
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02001990static int txq_init(struct mv643xx_eth_private *mp, int index)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001991{
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02001992 struct tx_queue *txq = mp->txq + index;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02001993 struct tx_desc *tx_desc;
1994 int size;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02001995 int i;
1996
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02001997 txq->index = index;
1998
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00001999 txq->tx_ring_size = mp->tx_ring_size;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002000
2001 txq->tx_desc_count = 0;
2002 txq->tx_curr_desc = 0;
2003 txq->tx_used_desc = 0;
2004
2005 size = txq->tx_ring_size * sizeof(struct tx_desc);
2006
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002007 if (index == 0 && size <= mp->tx_desc_sram_size) {
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002008 txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr,
2009 mp->tx_desc_sram_size);
2010 txq->tx_desc_dma = mp->tx_desc_sram_addr;
2011 } else {
2012 txq->tx_desc_area = dma_alloc_coherent(NULL, size,
2013 &txq->tx_desc_dma,
2014 GFP_KERNEL);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002015 }
2016
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002017 if (txq->tx_desc_area == NULL) {
2018 dev_printk(KERN_ERR, &mp->dev->dev,
2019 "can't allocate tx ring (%d bytes)\n", size);
Lennert Buytenhek99ab08e2008-08-28 05:53:18 +02002020 return -ENOMEM;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002021 }
2022 memset(txq->tx_desc_area, 0, size);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002023
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002024 txq->tx_desc_area_size = size;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002025
2026 tx_desc = (struct tx_desc *)txq->tx_desc_area;
2027 for (i = 0; i < txq->tx_ring_size; i++) {
Lennert Buytenhek6b368f62008-07-11 19:38:34 +02002028 struct tx_desc *txd = tx_desc + i;
Lennert Buytenhek9da78742008-08-23 23:45:28 +02002029 int nexti;
2030
2031 nexti = i + 1;
2032 if (nexti == txq->tx_ring_size)
2033 nexti = 0;
Lennert Buytenhek6b368f62008-07-11 19:38:34 +02002034
2035 txd->cmd_sts = 0;
2036 txd->next_desc_ptr = txq->tx_desc_dma +
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002037 nexti * sizeof(struct tx_desc);
2038 }
2039
Lennert Buytenhek99ab08e2008-08-28 05:53:18 +02002040 skb_queue_head_init(&txq->tx_skb);
2041
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002042 return 0;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002043}
2044
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002045static void txq_deinit(struct tx_queue *txq)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002046{
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002047 struct mv643xx_eth_private *mp = txq_to_mp(txq);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002048
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002049 txq_disable(txq);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002050 txq_reclaim(txq, txq->tx_ring_size, 1);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002051
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002052 BUG_ON(txq->tx_used_desc != txq->tx_curr_desc);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002053
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002054 if (txq->index == 0 &&
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02002055 txq->tx_desc_area_size <= mp->tx_desc_sram_size)
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002056 iounmap(txq->tx_desc_area);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002057 else
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002058 dma_free_coherent(NULL, txq->tx_desc_area_size,
2059 txq->tx_desc_area, txq->tx_desc_dma);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002060}
2061
2062
2063/* netdev ops and related ***************************************************/
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002064static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp)
2065{
2066 u32 int_cause;
2067 u32 int_cause_ext;
2068
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002069 int_cause = rdlp(mp, INT_CAUSE) & (INT_TX_END | INT_RX | INT_EXT);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002070 if (int_cause == 0)
2071 return 0;
2072
2073 int_cause_ext = 0;
2074 if (int_cause & INT_EXT)
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002075 int_cause_ext = rdlp(mp, INT_CAUSE_EXT);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002076
2077 int_cause &= INT_TX_END | INT_RX;
2078 if (int_cause) {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002079 wrlp(mp, INT_CAUSE, ~int_cause);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002080 mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) &
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002081 ~(rdlp(mp, TXQ_COMMAND) & 0xff);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002082 mp->work_rx |= (int_cause & INT_RX) >> 2;
2083 }
2084
2085 int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX;
2086 if (int_cause_ext) {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002087 wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002088 if (int_cause_ext & INT_EXT_LINK_PHY)
2089 mp->work_link = 1;
2090 mp->work_tx |= int_cause_ext & INT_EXT_TX;
2091 }
2092
2093 return 1;
2094}
2095
2096static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
2097{
2098 struct net_device *dev = (struct net_device *)dev_id;
2099 struct mv643xx_eth_private *mp = netdev_priv(dev);
2100
2101 if (unlikely(!mv643xx_eth_collect_events(mp)))
2102 return IRQ_NONE;
2103
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002104 wrlp(mp, INT_MASK, 0);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002105 napi_schedule(&mp->napi);
2106
2107 return IRQ_HANDLED;
2108}
2109
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002110static void handle_link_event(struct mv643xx_eth_private *mp)
2111{
2112 struct net_device *dev = mp->dev;
2113 u32 port_status;
2114 int speed;
2115 int duplex;
2116 int fc;
2117
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002118 port_status = rdlp(mp, PORT_STATUS);
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002119 if (!(port_status & LINK_UP)) {
2120 if (netif_carrier_ok(dev)) {
2121 int i;
2122
2123 printk(KERN_INFO "%s: link down\n", dev->name);
2124
2125 netif_carrier_off(dev);
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002126
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002127 for (i = 0; i < mp->txq_count; i++) {
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002128 struct tx_queue *txq = mp->txq + i;
2129
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002130 txq_reclaim(txq, txq->tx_ring_size, 1);
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002131 txq_reset_hw_ptr(txq);
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002132 }
2133 }
2134 return;
2135 }
2136
2137 switch (port_status & PORT_SPEED_MASK) {
2138 case PORT_SPEED_10:
2139 speed = 10;
2140 break;
2141 case PORT_SPEED_100:
2142 speed = 100;
2143 break;
2144 case PORT_SPEED_1000:
2145 speed = 1000;
2146 break;
2147 default:
2148 speed = -1;
2149 break;
2150 }
2151 duplex = (port_status & FULL_DUPLEX) ? 1 : 0;
2152 fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0;
2153
2154 printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, "
2155 "flow control %sabled\n", dev->name,
2156 speed, duplex ? "full" : "half",
2157 fc ? "en" : "dis");
2158
Lennert Buytenhek4fdeca32008-08-28 05:39:13 +02002159 if (!netif_carrier_ok(dev))
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002160 netif_carrier_on(dev);
Lennert Buytenhek2f7eb472008-07-24 06:22:59 +02002161}
2162
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002163static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002164{
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002165 struct mv643xx_eth_private *mp;
2166 int work_done;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002167
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002168 mp = container_of(napi, struct mv643xx_eth_private, napi);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002169
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002170 mp->work_rx_refill |= mp->work_rx_oom;
2171 mp->work_rx_oom = 0;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002172
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002173 work_done = 0;
2174 while (work_done < budget) {
2175 u8 queue_mask;
2176 int queue;
2177 int work_tbd;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002178
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002179 if (mp->work_link) {
2180 mp->work_link = 0;
2181 handle_link_event(mp);
2182 continue;
Lennert Buytenhek226bb6b2008-06-02 01:47:21 +02002183 }
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002184
2185 queue_mask = mp->work_tx | mp->work_tx_end |
2186 mp->work_rx | mp->work_rx_refill;
2187 if (!queue_mask) {
2188 if (mv643xx_eth_collect_events(mp))
2189 continue;
2190 break;
2191 }
2192
2193 queue = fls(queue_mask) - 1;
2194 queue_mask = 1 << queue;
2195
2196 work_tbd = budget - work_done;
2197 if (work_tbd > 16)
2198 work_tbd = 16;
2199
2200 if (mp->work_tx_end & queue_mask) {
2201 txq_kick(mp->txq + queue);
2202 } else if (mp->work_tx & queue_mask) {
2203 work_done += txq_reclaim(mp->txq + queue, work_tbd, 0);
2204 txq_maybe_wake(mp->txq + queue);
2205 } else if (mp->work_rx & queue_mask) {
2206 work_done += rxq_process(mp->rxq + queue, work_tbd);
2207 } else if (mp->work_rx_refill & queue_mask) {
2208 work_done += rxq_refill(mp->rxq + queue, work_tbd);
2209 } else {
2210 BUG();
2211 }
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002212 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002213
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002214 if (work_done < budget) {
2215 if (mp->work_rx_oom)
2216 mod_timer(&mp->rx_oom, jiffies + (HZ / 10));
2217 napi_complete(napi);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002218 wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002219 }
2220
2221 return work_done;
2222}
2223
2224static inline void oom_timer_wrapper(unsigned long data)
2225{
2226 struct mv643xx_eth_private *mp = (void *)data;
2227
2228 napi_schedule(&mp->napi);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002229}
2230
Lennert Buytenheke5371492008-06-01 02:18:13 +02002231static void phy_reset(struct mv643xx_eth_private *mp)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002232{
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002233 int data;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002234
Lennert Buytenheked944932008-08-26 13:34:19 +02002235 data = phy_read(mp->phy, MII_BMCR);
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002236 if (data < 0)
2237 return;
2238
Lennert Buytenhek7f106c12008-07-15 02:28:47 +02002239 data |= BMCR_RESET;
Lennert Buytenheked944932008-08-26 13:34:19 +02002240 if (phy_write(mp->phy, MII_BMCR, data) < 0)
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002241 return;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002242
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002243 do {
Lennert Buytenheked944932008-08-26 13:34:19 +02002244 data = phy_read(mp->phy, MII_BMCR);
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002245 } while (data >= 0 && data & BMCR_RESET);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002246}
2247
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002248static void port_start(struct mv643xx_eth_private *mp)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002249{
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002250 u32 pscr;
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002251 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002252
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002253 /*
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02002254 * Perform PHY reset, if there is a PHY.
2255 */
Lennert Buytenheked944932008-08-26 13:34:19 +02002256 if (mp->phy != NULL) {
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02002257 struct ethtool_cmd cmd;
2258
2259 mv643xx_eth_get_settings(mp->dev, &cmd);
2260 phy_reset(mp);
2261 mv643xx_eth_set_settings(mp->dev, &cmd);
2262 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002263
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002264 /*
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002265 * Configure basic link parameters.
2266 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002267 pscr = rdlp(mp, PORT_SERIAL_CONTROL);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002268
2269 pscr |= SERIAL_PORT_ENABLE;
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002270 wrlp(mp, PORT_SERIAL_CONTROL, pscr);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002271
2272 pscr |= DO_NOT_FORCE_LINK_FAIL;
Lennert Buytenheked944932008-08-26 13:34:19 +02002273 if (mp->phy == NULL)
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002274 pscr |= FORCE_LINK_PASS;
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002275 wrlp(mp, PORT_SERIAL_CONTROL, pscr);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002276
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002277 wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002278
2279 /*
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002280 * Configure TX path and queues.
2281 */
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02002282 tx_set_rate(mp, 1000000000, 16777216);
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002283 for (i = 0; i < mp->txq_count; i++) {
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02002284 struct tx_queue *txq = mp->txq + i;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002285
Lennert Buytenhek6b368f62008-07-11 19:38:34 +02002286 txq_reset_hw_ptr(txq);
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02002287 txq_set_rate(txq, 1000000000, 16777216);
2288 txq_set_fixed_prio_mode(txq);
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002289 }
2290
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002291 /*
2292 * Add configured unicast address to address filter table.
2293 */
Lennert Buytenhek66e63ff2008-11-20 03:58:27 -08002294 mv643xx_eth_program_unicast_filter(mp->dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002295
Lennert Buytenhekd9a073e2008-06-01 01:22:06 +02002296 /*
2297 * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
Lennert Buytenhek170e7102008-09-19 02:58:50 +02002298 * frames to RX queue #0, and include the pseudo-header when
2299 * calculating receive checksums.
Lennert Buytenhekd9a073e2008-06-01 01:22:06 +02002300 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002301 wrlp(mp, PORT_CONFIG, 0x02000000);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002302
Lennert Buytenhek376489a2008-06-01 01:17:44 +02002303 /*
2304 * Treat BPDUs as normal multicasts, and disable partition mode.
2305 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002306 wrlp(mp, PORT_CONFIG_EXT, 0x00000000);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002307
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002308 /*
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002309 * Enable the receive queues.
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002310 */
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002311 for (i = 0; i < mp->rxq_count; i++) {
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002312 struct rx_queue *rxq = mp->rxq + i;
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002313 u32 addr;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002314
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002315 addr = (u32)rxq->rx_desc_dma;
2316 addr += rxq->rx_curr_desc * sizeof(struct rx_desc);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002317 wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002318
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002319 rxq_enable(rxq);
2320 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002321}
2322
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -07002323static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp)
2324{
2325 int skb_size;
2326
2327 /*
2328 * Reserve 2+14 bytes for an ethernet header (the hardware
2329 * automatically prepends 2 bytes of dummy data to each
2330 * received packet), 16 bytes for up to four VLAN tags, and
2331 * 4 bytes for the trailing FCS -- 36 bytes total.
2332 */
2333 skb_size = mp->dev->mtu + 36;
2334
2335 /*
2336 * Make sure that the skb size is a multiple of 8 bytes, as
2337 * the lower three bits of the receive descriptor's buffer
2338 * size field are ignored by the hardware.
2339 */
2340 mp->skb_size = (skb_size + 7) & ~7;
2341}
2342
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002343static int mv643xx_eth_open(struct net_device *dev)
2344{
Lennert Buytenheke5371492008-06-01 02:18:13 +02002345 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002346 int err;
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002347 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002348
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002349 wrlp(mp, INT_CAUSE, 0);
2350 wrlp(mp, INT_CAUSE_EXT, 0);
2351 rdlp(mp, INT_CAUSE_EXT);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002352
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002353 err = request_irq(dev->irq, mv643xx_eth_irq,
Lennert Buytenhek2a1867a2008-08-23 23:43:38 +02002354 IRQF_SHARED, dev->name, dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002355 if (err) {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002356 dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n");
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002357 return -EAGAIN;
2358 }
2359
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -07002360 mv643xx_eth_recalc_skb_size(mp);
2361
Lennert Buytenhek2257e052008-08-24 04:33:36 +02002362 napi_enable(&mp->napi);
2363
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -07002364 skb_queue_head_init(&mp->rx_recycle);
2365
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002366 for (i = 0; i < mp->rxq_count; i++) {
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002367 err = rxq_init(mp, i);
2368 if (err) {
2369 while (--i >= 0)
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002370 rxq_deinit(mp->rxq + i);
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002371 goto out;
2372 }
2373
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002374 rxq_refill(mp->rxq + i, INT_MAX);
Lennert Buytenhek2257e052008-08-24 04:33:36 +02002375 }
2376
Lennert Buytenhek1fa38c52008-08-28 08:09:10 +02002377 if (mp->work_rx_oom) {
Lennert Buytenhek2257e052008-08-24 04:33:36 +02002378 mp->rx_oom.expires = jiffies + (HZ / 10);
2379 add_timer(&mp->rx_oom);
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002380 }
Lennert Buytenhek8a578112008-06-01 18:09:35 +02002381
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002382 for (i = 0; i < mp->txq_count; i++) {
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02002383 err = txq_init(mp, i);
2384 if (err) {
2385 while (--i >= 0)
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002386 txq_deinit(mp->txq + i);
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02002387 goto out_free;
2388 }
2389 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002390
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002391 port_start(mp);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002392
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002393 wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
2394 wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002395
2396 return 0;
2397
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002398
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002399out_free:
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002400 for (i = 0; i < mp->rxq_count; i++)
2401 rxq_deinit(mp->rxq + i);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002402out:
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002403 free_irq(dev->irq, dev);
2404
2405 return err;
2406}
2407
Lennert Buytenheke5371492008-06-01 02:18:13 +02002408static void port_reset(struct mv643xx_eth_private *mp)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002409{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002410 unsigned int data;
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002411 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002412
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002413 for (i = 0; i < mp->rxq_count; i++)
2414 rxq_disable(mp->rxq + i);
2415 for (i = 0; i < mp->txq_count; i++)
2416 txq_disable(mp->txq + i);
Lennert Buytenhekae9ae062008-07-15 02:15:24 +02002417
2418 while (1) {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002419 u32 ps = rdlp(mp, PORT_STATUS);
Lennert Buytenhekae9ae062008-07-15 02:15:24 +02002420
2421 if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY)
2422 break;
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002423 udelay(10);
Lennert Buytenhekae9ae062008-07-15 02:15:24 +02002424 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002425
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002426 /* Reset the Enable bit in the Configuration Register */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002427 data = rdlp(mp, PORT_SERIAL_CONTROL);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002428 data &= ~(SERIAL_PORT_ENABLE |
2429 DO_NOT_FORCE_LINK_FAIL |
2430 FORCE_LINK_PASS);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002431 wrlp(mp, PORT_SERIAL_CONTROL, data);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002432}
2433
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002434static int mv643xx_eth_stop(struct net_device *dev)
2435{
Lennert Buytenheke5371492008-06-01 02:18:13 +02002436 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002437 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002438
Gabriel Paubertfe65e702009-01-19 17:18:09 -08002439 wrlp(mp, INT_MASK_EXT, 0x00000000);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002440 wrlp(mp, INT_MASK, 0x00000000);
2441 rdlp(mp, INT_MASK);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002442
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002443 napi_disable(&mp->napi);
Lennert Buytenhek78fff832008-08-24 01:03:57 +02002444
Lennert Buytenhek2257e052008-08-24 04:33:36 +02002445 del_timer_sync(&mp->rx_oom);
2446
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002447 netif_carrier_off(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002448
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002449 free_irq(dev->irq, dev);
2450
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +02002451 port_reset(mp);
Lennert Buytenhek8fd89212008-08-28 08:26:28 +02002452 mv643xx_eth_get_stats(dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002453 mib_counters_update(mp);
Sebastian Siewior57e8f262009-02-16 11:28:15 +00002454 del_timer_sync(&mp->mib_counters_timer);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002455
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -07002456 skb_queue_purge(&mp->rx_recycle);
2457
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002458 for (i = 0; i < mp->rxq_count; i++)
2459 rxq_deinit(mp->rxq + i);
2460 for (i = 0; i < mp->txq_count; i++)
2461 txq_deinit(mp->txq + i);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002462
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002463 return 0;
2464}
2465
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002466static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002467{
Lennert Buytenheke5371492008-06-01 02:18:13 +02002468 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002469
Lennert Buytenheked944932008-08-26 13:34:19 +02002470 if (mp->phy != NULL)
2471 return phy_mii_ioctl(mp->phy, if_mii(ifr), cmd);
Lennert Buytenhekbedfe322008-06-02 02:13:03 +02002472
2473 return -EOPNOTSUPP;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002474}
2475
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002476static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)
2477{
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02002478 struct mv643xx_eth_private *mp = netdev_priv(dev);
2479
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002480 if (new_mtu < 64 || new_mtu > 9500)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002481 return -EINVAL;
2482
2483 dev->mtu = new_mtu;
Lennert Buytenhek2bcb4b02008-10-01 02:33:57 -07002484 mv643xx_eth_recalc_skb_size(mp);
Lennert Buytenhek89df5fd2008-06-02 00:51:05 +02002485 tx_set_rate(mp, 1000000000, 16777216);
2486
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002487 if (!netif_running(dev))
2488 return 0;
2489
2490 /*
2491 * Stop and then re-open the interface. This will allocate RX
2492 * skbs of the new MTU.
2493 * There is a possible danger that the open will not succeed,
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002494 * due to memory being full.
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002495 */
2496 mv643xx_eth_stop(dev);
2497 if (mv643xx_eth_open(dev)) {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002498 dev_printk(KERN_ERR, &dev->dev,
2499 "fatal error on re-opening device after "
2500 "MTU change\n");
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002501 }
2502
2503 return 0;
2504}
2505
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002506static void tx_timeout_task(struct work_struct *ugly)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002507{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002508 struct mv643xx_eth_private *mp;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002509
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002510 mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task);
2511 if (netif_running(mp->dev)) {
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +02002512 netif_tx_stop_all_queues(mp->dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002513 port_reset(mp);
2514 port_start(mp);
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +02002515 netif_tx_wake_all_queues(mp->dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002516 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002517}
2518
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002519static void mv643xx_eth_tx_timeout(struct net_device *dev)
2520{
Lennert Buytenheke5371492008-06-01 02:18:13 +02002521 struct mv643xx_eth_private *mp = netdev_priv(dev);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002522
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002523 dev_printk(KERN_INFO, &dev->dev, "tx timeout\n");
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002524
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002525 schedule_work(&mp->tx_timeout_task);
2526}
2527
Dale Farnsworth63c9e542005-09-02 13:49:10 -07002528#ifdef CONFIG_NET_POLL_CONTROLLER
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002529static void mv643xx_eth_netpoll(struct net_device *dev)
Dale Farnsworth63c9e542005-09-02 13:49:10 -07002530{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002531 struct mv643xx_eth_private *mp = netdev_priv(dev);
Dale Farnsworth63c9e542005-09-02 13:49:10 -07002532
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002533 wrlp(mp, INT_MASK, 0x00000000);
2534 rdlp(mp, INT_MASK);
Dale Farnsworthc2e5b352006-01-16 17:00:24 -07002535
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002536 mv643xx_eth_irq(dev->irq, dev);
Dale Farnsworthc2e5b352006-01-16 17:00:24 -07002537
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002538 wrlp(mp, INT_MASK, INT_TX_END | INT_RX | INT_EXT);
Dale Farnsworth63c9e542005-09-02 13:49:10 -07002539}
2540#endif
2541
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002542
2543/* platform glue ************************************************************/
Lennert Buytenheke5371492008-06-01 02:18:13 +02002544static void
2545mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp,
2546 struct mbus_dram_target_info *dram)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002547{
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +02002548 void __iomem *base = msp->base;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002549 u32 win_enable;
2550 u32 win_protect;
2551 int i;
2552
2553 for (i = 0; i < 6; i++) {
2554 writel(0, base + WINDOW_BASE(i));
2555 writel(0, base + WINDOW_SIZE(i));
2556 if (i < 4)
2557 writel(0, base + WINDOW_REMAP_HIGH(i));
2558 }
2559
2560 win_enable = 0x3f;
2561 win_protect = 0;
2562
2563 for (i = 0; i < dram->num_cs; i++) {
2564 struct mbus_dram_window *cs = dram->cs + i;
2565
2566 writel((cs->base & 0xffff0000) |
2567 (cs->mbus_attr << 8) |
2568 dram->mbus_dram_target_id, base + WINDOW_BASE(i));
2569 writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i));
2570
2571 win_enable &= ~(1 << i);
2572 win_protect |= 3 << (2 * i);
2573 }
2574
2575 writel(win_enable, base + WINDOW_BAR_ENABLE);
2576 msp->win_protect = win_protect;
2577}
2578
Lennert Buytenhek773fc3e2008-06-02 01:54:16 +02002579static void infer_hw_params(struct mv643xx_eth_shared_private *msp)
2580{
2581 /*
2582 * Check whether we have a 14-bit coal limit field in bits
2583 * [21:8], or a 16-bit coal limit in bits [25,21:7] of the
2584 * SDMA config register.
2585 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002586 writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG);
2587 if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000)
Lennert Buytenhek773fc3e2008-06-02 01:54:16 +02002588 msp->extended_rx_coal_limit = 1;
2589 else
2590 msp->extended_rx_coal_limit = 0;
Lennert Buytenhek1e881592008-06-02 01:57:36 +02002591
2592 /*
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02002593 * Check whether the MAC supports TX rate control, and if
2594 * yes, whether its associated registers are in the old or
2595 * the new place.
Lennert Buytenhek1e881592008-06-02 01:57:36 +02002596 */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002597 writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED);
2598 if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) {
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02002599 msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT;
2600 } else {
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002601 writel(7, msp->base + 0x0400 + TX_BW_RATE);
2602 if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7)
Lennert Buytenhek457b1d52008-09-04 12:22:34 +02002603 msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT;
2604 else
2605 msp->tx_bw_control = TX_BW_CONTROL_ABSENT;
2606 }
Lennert Buytenhek773fc3e2008-06-02 01:54:16 +02002607}
2608
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002609static int mv643xx_eth_shared_probe(struct platform_device *pdev)
2610{
Lennert Buytenhek10a99482008-11-20 03:57:16 -08002611 static int mv643xx_eth_version_printed;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002612 struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
Lennert Buytenheke5371492008-06-01 02:18:13 +02002613 struct mv643xx_eth_shared_private *msp;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002614 struct resource *res;
2615 int ret;
2616
Lennert Buytenheke5371492008-06-01 02:18:13 +02002617 if (!mv643xx_eth_version_printed++)
Lennert Buytenhek7dde1542008-07-15 12:20:30 +02002618 printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet "
2619 "driver version %s\n", mv643xx_eth_driver_version);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002620
2621 ret = -EINVAL;
2622 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2623 if (res == NULL)
2624 goto out;
2625
2626 ret = -ENOMEM;
2627 msp = kmalloc(sizeof(*msp), GFP_KERNEL);
2628 if (msp == NULL)
2629 goto out;
2630 memset(msp, 0, sizeof(*msp));
2631
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +02002632 msp->base = ioremap(res->start, res->end - res->start + 1);
2633 if (msp->base == NULL)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002634 goto out_free;
2635
Lennert Buytenheked944932008-08-26 13:34:19 +02002636 /*
2637 * Set up and register SMI bus.
2638 */
2639 if (pd == NULL || pd->shared_smi == NULL) {
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002640 msp->smi_bus = mdiobus_alloc();
2641 if (msp->smi_bus == NULL)
Lennert Buytenheked944932008-08-26 13:34:19 +02002642 goto out_unmap;
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002643
2644 msp->smi_bus->priv = msp;
2645 msp->smi_bus->name = "mv643xx_eth smi";
2646 msp->smi_bus->read = smi_bus_read;
2647 msp->smi_bus->write = smi_bus_write,
2648 snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id);
2649 msp->smi_bus->parent = &pdev->dev;
2650 msp->smi_bus->phy_mask = 0xffffffff;
2651 if (mdiobus_register(msp->smi_bus) < 0)
2652 goto out_free_mii_bus;
Lennert Buytenheked944932008-08-26 13:34:19 +02002653 msp->smi = msp;
2654 } else {
Lennert Buytenhekfc0eb9f2008-08-26 12:56:56 +02002655 msp->smi = platform_get_drvdata(pd->shared_smi);
Lennert Buytenheked944932008-08-26 13:34:19 +02002656 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002657
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002658 msp->err_interrupt = NO_IRQ;
2659 init_waitqueue_head(&msp->smi_busy_wait);
2660
2661 /*
2662 * Check whether the error interrupt is hooked up.
2663 */
2664 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2665 if (res != NULL) {
2666 int err;
2667
2668 err = request_irq(res->start, mv643xx_eth_err_irq,
2669 IRQF_SHARED, "mv643xx_eth", msp);
2670 if (!err) {
2671 writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK);
2672 msp->err_interrupt = res->start;
2673 }
2674 }
2675
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002676 /*
2677 * (Re-)program MBUS remapping windows if we are asked to.
2678 */
2679 if (pd != NULL && pd->dram != NULL)
2680 mv643xx_eth_conf_mbus_windows(msp, pd->dram);
2681
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002682 /*
2683 * Detect hardware parameters.
2684 */
2685 msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000;
Lennert Buytenhek773fc3e2008-06-02 01:54:16 +02002686 infer_hw_params(msp);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002687
2688 platform_set_drvdata(pdev, msp);
2689
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002690 return 0;
2691
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002692out_free_mii_bus:
2693 mdiobus_free(msp->smi_bus);
Lennert Buytenheked944932008-08-26 13:34:19 +02002694out_unmap:
2695 iounmap(msp->base);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002696out_free:
2697 kfree(msp);
2698out:
2699 return ret;
2700}
2701
2702static int mv643xx_eth_shared_remove(struct platform_device *pdev)
2703{
Lennert Buytenheke5371492008-06-01 02:18:13 +02002704 struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
Lennert Buytenheked944932008-08-26 13:34:19 +02002705 struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002706
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002707 if (pd == NULL || pd->shared_smi == NULL) {
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002708 mdiobus_unregister(msp->smi_bus);
Lennert Buytenhekbcb33362008-11-18 04:28:35 +00002709 mdiobus_free(msp->smi_bus);
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002710 }
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002711 if (msp->err_interrupt != NO_IRQ)
2712 free_irq(msp->err_interrupt, msp);
Lennert Buytenhekcc9754b2008-06-01 02:10:27 +02002713 iounmap(msp->base);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002714 kfree(msp);
2715
2716 return 0;
2717}
2718
2719static struct platform_driver mv643xx_eth_shared_driver = {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002720 .probe = mv643xx_eth_shared_probe,
2721 .remove = mv643xx_eth_shared_remove,
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002722 .driver = {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002723 .name = MV643XX_ETH_SHARED_NAME,
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002724 .owner = THIS_MODULE,
2725 },
2726};
2727
Lennert Buytenheke5371492008-06-01 02:18:13 +02002728static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002729{
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002730 int addr_shift = 5 * mp->port_num;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002731 u32 data;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002732
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002733 data = rdl(mp, PHY_ADDR);
2734 data &= ~(0x1f << addr_shift);
2735 data |= (phy_addr & 0x1f) << addr_shift;
2736 wrl(mp, PHY_ADDR, data);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002737}
2738
Lennert Buytenheke5371492008-06-01 02:18:13 +02002739static int phy_addr_get(struct mv643xx_eth_private *mp)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002740{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002741 unsigned int data;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002742
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002743 data = rdl(mp, PHY_ADDR);
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002744
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002745 return (data >> (5 * mp->port_num)) & 0x1f;
2746}
2747
2748static void set_params(struct mv643xx_eth_private *mp,
2749 struct mv643xx_eth_platform_data *pd)
2750{
2751 struct net_device *dev = mp->dev;
2752
2753 if (is_valid_ether_addr(pd->mac_addr))
2754 memcpy(dev->dev_addr, pd->mac_addr, 6);
2755 else
2756 uc_addr_get(mp, dev->dev_addr);
2757
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00002758 mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002759 if (pd->rx_queue_size)
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00002760 mp->rx_ring_size = pd->rx_queue_size;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002761 mp->rx_desc_sram_addr = pd->rx_sram_addr;
2762 mp->rx_desc_sram_size = pd->rx_sram_size;
2763
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002764 mp->rxq_count = pd->rx_queue_count ? : 1;
Lennert Buytenhek64da80a2008-06-02 01:01:26 +02002765
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00002766 mp->tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002767 if (pd->tx_queue_size)
Lennert Buytenheke7d2f4d2009-02-12 14:07:37 +00002768 mp->tx_ring_size = pd->tx_queue_size;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002769 mp->tx_desc_sram_addr = pd->tx_sram_addr;
2770 mp->tx_desc_sram_size = pd->tx_sram_size;
Lennert Buytenhek3d6b35b2008-06-02 01:28:22 +02002771
Lennert Buytenhekf7981c12008-08-26 10:23:22 +02002772 mp->txq_count = pd->tx_queue_count ? : 1;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002773}
2774
Lennert Buytenheked944932008-08-26 13:34:19 +02002775static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
2776 int phy_addr)
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002777{
Lennert Buytenhek298cf9b2008-10-08 16:29:57 -07002778 struct mii_bus *bus = mp->shared->smi->smi_bus;
Lennert Buytenheked944932008-08-26 13:34:19 +02002779 struct phy_device *phydev;
2780 int start;
2781 int num;
2782 int i;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002783
Lennert Buytenheked944932008-08-26 13:34:19 +02002784 if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) {
2785 start = phy_addr_get(mp) & 0x1f;
2786 num = 32;
2787 } else {
2788 start = phy_addr & 0x1f;
2789 num = 1;
2790 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002791
Lennert Buytenheked944932008-08-26 13:34:19 +02002792 phydev = NULL;
2793 for (i = 0; i < num; i++) {
2794 int addr = (start + i) & 0x1f;
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002795
Lennert Buytenheked944932008-08-26 13:34:19 +02002796 if (bus->phy_map[addr] == NULL)
2797 mdiobus_scan(bus, addr);
Lennert Buytenhek45c5d3b2008-08-26 04:42:59 +02002798
Lennert Buytenheked944932008-08-26 13:34:19 +02002799 if (phydev == NULL) {
2800 phydev = bus->phy_map[addr];
2801 if (phydev != NULL)
2802 phy_addr_set(mp, addr);
2803 }
2804 }
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002805
Lennert Buytenheked944932008-08-26 13:34:19 +02002806 return phydev;
Lennert Buytenhekc9df406f2008-06-01 00:48:39 +02002807}
2808
Lennert Buytenheked944932008-08-26 13:34:19 +02002809static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex)
James Chapmand0412d92006-01-27 01:15:30 -07002810{
Lennert Buytenheked944932008-08-26 13:34:19 +02002811 struct phy_device *phy = mp->phy;
James Chapmand0412d92006-01-27 01:15:30 -07002812
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002813 phy_reset(mp);
2814
Kay Sieversdb1d7bf2009-01-26 21:12:58 -08002815 phy_attach(mp->dev, dev_name(&phy->dev), 0, PHY_INTERFACE_MODE_GMII);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002816
Lennert Buytenheked944932008-08-26 13:34:19 +02002817 if (speed == 0) {
2818 phy->autoneg = AUTONEG_ENABLE;
2819 phy->speed = 0;
2820 phy->duplex = 0;
2821 phy->advertising = phy->supported | ADVERTISED_Autoneg;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002822 } else {
Lennert Buytenheked944932008-08-26 13:34:19 +02002823 phy->autoneg = AUTONEG_DISABLE;
2824 phy->advertising = 0;
2825 phy->speed = speed;
2826 phy->duplex = duplex;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002827 }
Lennert Buytenheked944932008-08-26 13:34:19 +02002828 phy_start_aneg(phy);
James Chapmand0412d92006-01-27 01:15:30 -07002829}
2830
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002831static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex)
2832{
2833 u32 pscr;
2834
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002835 pscr = rdlp(mp, PORT_SERIAL_CONTROL);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002836 if (pscr & SERIAL_PORT_ENABLE) {
2837 pscr &= ~SERIAL_PORT_ENABLE;
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002838 wrlp(mp, PORT_SERIAL_CONTROL, pscr);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002839 }
2840
2841 pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED;
Lennert Buytenheked944932008-08-26 13:34:19 +02002842 if (mp->phy == NULL) {
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002843 pscr |= DISABLE_AUTO_NEG_SPEED_GMII;
2844 if (speed == SPEED_1000)
2845 pscr |= SET_GMII_SPEED_TO_1000;
2846 else if (speed == SPEED_100)
2847 pscr |= SET_MII_SPEED_TO_100;
2848
2849 pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL;
2850
2851 pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX;
2852 if (duplex == DUPLEX_FULL)
2853 pscr |= SET_FULL_DUPLEX_MODE;
2854 }
2855
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002856 wrlp(mp, PORT_SERIAL_CONTROL, pscr);
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002857}
2858
Lennert Buytenhekea8a8642009-02-24 15:41:40 +00002859static const struct net_device_ops mv643xx_eth_netdev_ops = {
2860 .ndo_open = mv643xx_eth_open,
2861 .ndo_stop = mv643xx_eth_stop,
2862 .ndo_start_xmit = mv643xx_eth_xmit,
2863 .ndo_set_rx_mode = mv643xx_eth_set_rx_mode,
2864 .ndo_set_mac_address = mv643xx_eth_set_mac_address,
2865 .ndo_do_ioctl = mv643xx_eth_ioctl,
2866 .ndo_change_mtu = mv643xx_eth_change_mtu,
2867 .ndo_tx_timeout = mv643xx_eth_tx_timeout,
2868 .ndo_get_stats = mv643xx_eth_get_stats,
2869#ifdef CONFIG_NET_POLL_CONTROLLER
2870 .ndo_poll_controller = mv643xx_eth_netpoll,
2871#endif
2872};
2873
Russell King3ae5eae2005-11-09 22:32:44 +00002874static int mv643xx_eth_probe(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002875{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002876 struct mv643xx_eth_platform_data *pd;
Lennert Buytenheke5371492008-06-01 02:18:13 +02002877 struct mv643xx_eth_private *mp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002878 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002879 struct resource *res;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002880 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002881
Dale Farnsworth84dd6192007-03-03 06:40:28 -07002882 pd = pdev->dev.platform_data;
2883 if (pd == NULL) {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002884 dev_printk(KERN_ERR, &pdev->dev,
2885 "no mv643xx_eth_platform_data\n");
Dale Farnsworth84dd6192007-03-03 06:40:28 -07002886 return -ENODEV;
2887 }
2888
Lennert Buytenhekfa3959f2008-04-24 01:27:02 +02002889 if (pd->shared == NULL) {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002890 dev_printk(KERN_ERR, &pdev->dev,
2891 "no mv643xx_eth_platform_data->shared\n");
Lennert Buytenhekfa3959f2008-04-24 01:27:02 +02002892 return -ENODEV;
2893 }
2894
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +02002895 dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002896 if (!dev)
2897 return -ENOMEM;
2898
Linus Torvalds1da177e2005-04-16 15:20:36 -07002899 mp = netdev_priv(dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002900 platform_set_drvdata(pdev, mp);
2901
2902 mp->shared = platform_get_drvdata(pd->shared);
Lennert Buytenhek37a60842008-11-20 03:57:36 -08002903 mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002904 mp->port_num = pd->port_number;
2905
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002906 mp->dev = dev;
Lennert Buytenhek78fff832008-08-24 01:03:57 +02002907
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002908 set_params(mp, pd);
Lennert Buytenheke5ef1de2008-08-28 06:26:23 +02002909 dev->real_num_tx_queues = mp->txq_count;
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002910
Lennert Buytenheked944932008-08-26 13:34:19 +02002911 if (pd->phy_addr != MV643XX_ETH_PHY_NONE)
2912 mp->phy = phy_scan(mp, pd->phy_addr);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002913
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00002914 if (mp->phy != NULL)
Lennert Buytenheked944932008-08-26 13:34:19 +02002915 phy_init(mp, pd->speed, pd->duplex);
Lennert Buytenhek6bdf5762009-02-12 14:06:46 +00002916
2917 SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
Lennert Buytenheked944932008-08-26 13:34:19 +02002918
Lennert Buytenhek81600eea92008-07-14 14:29:40 +02002919 init_pscr(mp, pd->speed, pd->duplex);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002920
Lennert Buytenhek4ff34952008-09-19 05:04:57 +02002921
2922 mib_counters_clear(mp);
2923
2924 init_timer(&mp->mib_counters_timer);
2925 mp->mib_counters_timer.data = (unsigned long)mp;
2926 mp->mib_counters_timer.function = mib_counters_timer_wrapper;
2927 mp->mib_counters_timer.expires = jiffies + 30 * HZ;
2928 add_timer(&mp->mib_counters_timer);
2929
2930 spin_lock_init(&mp->mib_counters_lock);
2931
2932 INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
2933
Lennert Buytenhek2257e052008-08-24 04:33:36 +02002934 netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128);
2935
2936 init_timer(&mp->rx_oom);
2937 mp->rx_oom.data = (unsigned long)mp;
2938 mp->rx_oom.function = oom_timer_wrapper;
2939
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002940
Linus Torvalds1da177e2005-04-16 15:20:36 -07002941 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2942 BUG_ON(!res);
2943 dev->irq = res->start;
2944
Lennert Buytenhekea8a8642009-02-24 15:41:40 +00002945 dev->netdev_ops = &mv643xx_eth_netdev_ops;
2946
Linus Torvalds1da177e2005-04-16 15:20:36 -07002947 dev->watchdog_timeo = 2 * HZ;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002948 dev->base_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002949
Wolfram Joost63890572006-01-16 16:57:41 -07002950 dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
Lennert Buytenheke32b6612008-07-24 06:22:59 +02002951 dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM;
James Chapmanc28a4f82006-01-27 01:13:15 -07002952
Olaf Heringb0b8dab2006-04-27 18:23:49 -07002953 SET_NETDEV_DEV(dev, &pdev->dev);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002954
2955 if (mp->shared->win_protect)
2956 wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect);
2957
Lennert Buytenheka5fe3612009-02-24 15:41:47 +00002958 netif_carrier_off(dev);
2959
2960 set_rx_coal(mp, 0);
2961 set_tx_coal(mp, 0);
2962
Linus Torvalds1da177e2005-04-16 15:20:36 -07002963 err = register_netdev(dev);
2964 if (err)
2965 goto out;
2966
Johannes Berge1749612008-10-27 15:59:26 -07002967 dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %pM\n",
2968 mp->port_num, dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002969
Lennert Buytenhek13d64282008-06-01 20:51:22 +02002970 if (mp->tx_desc_sram_size > 0)
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002971 dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n");
Nicolas DETb1529872005-10-28 17:46:30 -07002972
Linus Torvalds1da177e2005-04-16 15:20:36 -07002973 return 0;
2974
2975out:
2976 free_netdev(dev);
2977
2978 return err;
2979}
2980
Russell King3ae5eae2005-11-09 22:32:44 +00002981static int mv643xx_eth_remove(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002982{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002983 struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002984
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002985 unregister_netdev(mp->dev);
Lennert Buytenheked944932008-08-26 13:34:19 +02002986 if (mp->phy != NULL)
2987 phy_detach(mp->phy);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002988 flush_scheduled_work();
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002989 free_netdev(mp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002990
Russell King3ae5eae2005-11-09 22:32:44 +00002991 platform_set_drvdata(pdev, NULL);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002992
Linus Torvalds1da177e2005-04-16 15:20:36 -07002993 return 0;
2994}
2995
Dale Farnsworthd57ab6f2007-03-20 16:38:04 -07002996static void mv643xx_eth_shutdown(struct platform_device *pdev)
2997{
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02002998 struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
Dale Farnsworthd57ab6f2007-03-20 16:38:04 -07002999
3000 /* Mask all interrupts on ethernet port */
Lennert Buytenhek37a60842008-11-20 03:57:36 -08003001 wrlp(mp, INT_MASK, 0);
3002 rdlp(mp, INT_MASK);
Dale Farnsworthd57ab6f2007-03-20 16:38:04 -07003003
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003004 if (netif_running(mp->dev))
3005 port_reset(mp);
Dale Farnsworthd57ab6f2007-03-20 16:38:04 -07003006}
3007
Russell King3ae5eae2005-11-09 22:32:44 +00003008static struct platform_driver mv643xx_eth_driver = {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003009 .probe = mv643xx_eth_probe,
3010 .remove = mv643xx_eth_remove,
3011 .shutdown = mv643xx_eth_shutdown,
Russell King3ae5eae2005-11-09 22:32:44 +00003012 .driver = {
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003013 .name = MV643XX_ETH_NAME,
Kay Sievers72abb462008-04-18 13:50:44 -07003014 .owner = THIS_MODULE,
Russell King3ae5eae2005-11-09 22:32:44 +00003015 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07003016};
3017
Lennert Buytenheke5371492008-06-01 02:18:13 +02003018static int __init mv643xx_eth_init_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003019{
3020 int rc;
3021
Russell King3ae5eae2005-11-09 22:32:44 +00003022 rc = platform_driver_register(&mv643xx_eth_shared_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003023 if (!rc) {
Russell King3ae5eae2005-11-09 22:32:44 +00003024 rc = platform_driver_register(&mv643xx_eth_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003025 if (rc)
Russell King3ae5eae2005-11-09 22:32:44 +00003026 platform_driver_unregister(&mv643xx_eth_shared_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003027 }
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003028
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029 return rc;
3030}
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003031module_init(mv643xx_eth_init_module);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003032
Lennert Buytenheke5371492008-06-01 02:18:13 +02003033static void __exit mv643xx_eth_cleanup_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003034{
Russell King3ae5eae2005-11-09 22:32:44 +00003035 platform_driver_unregister(&mv643xx_eth_driver);
3036 platform_driver_unregister(&mv643xx_eth_shared_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003037}
Lennert Buytenheke5371492008-06-01 02:18:13 +02003038module_exit(mv643xx_eth_cleanup_module);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003039
Lennert Buytenhek45675bc2008-06-02 02:02:30 +02003040MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, "
3041 "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003042MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX");
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003043MODULE_LICENSE("GPL");
Kay Sievers72abb462008-04-18 13:50:44 -07003044MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME);
Lennert Buytenhekfc32b0e2008-06-02 00:28:40 +02003045MODULE_ALIAS("platform:" MV643XX_ETH_NAME);