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1da177e4 | 1 | /* |
9c1bbdfe | 2 | * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports |
1da177e4 LT |
3 | * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> |
4 | * | |
5 | * Based on the 64360 driver from: | |
4547fa61 LB |
6 | * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> |
7 | * Rabeeh Khoury <rabeeh@marvell.com> | |
1da177e4 LT |
8 | * |
9 | * Copyright (C) 2003 PMC-Sierra, Inc., | |
3bb8a18a | 10 | * written by Manish Lachwani |
1da177e4 LT |
11 | * |
12 | * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> | |
13 | * | |
c8aaea25 | 14 | * Copyright (C) 2004-2006 MontaVista Software, Inc. |
1da177e4 LT |
15 | * Dale Farnsworth <dale@farnsworth.org> |
16 | * | |
17 | * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> | |
18 | * <sjhill@realitydiluted.com> | |
19 | * | |
4547fa61 LB |
20 | * Copyright (C) 2007-2008 Marvell Semiconductor |
21 | * Lennert Buytenhek <buytenh@marvell.com> | |
22 | * | |
1da177e4 LT |
23 | * This program is free software; you can redistribute it and/or |
24 | * modify it under the terms of the GNU General Public License | |
25 | * as published by the Free Software Foundation; either version 2 | |
26 | * of the License, or (at your option) any later version. | |
27 | * | |
28 | * This program is distributed in the hope that it will be useful, | |
29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
31 | * GNU General Public License for more details. | |
32 | * | |
33 | * You should have received a copy of the GNU General Public License | |
34 | * along with this program; if not, write to the Free Software | |
35 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
36 | */ | |
a779d38c | 37 | |
1da177e4 LT |
38 | #include <linux/init.h> |
39 | #include <linux/dma-mapping.h> | |
b6298c22 | 40 | #include <linux/in.h> |
c3efab8e | 41 | #include <linux/ip.h> |
1da177e4 LT |
42 | #include <linux/tcp.h> |
43 | #include <linux/udp.h> | |
44 | #include <linux/etherdevice.h> | |
1da177e4 LT |
45 | #include <linux/delay.h> |
46 | #include <linux/ethtool.h> | |
d052d1be | 47 | #include <linux/platform_device.h> |
fbd6a754 LB |
48 | #include <linux/module.h> |
49 | #include <linux/kernel.h> | |
50 | #include <linux/spinlock.h> | |
51 | #include <linux/workqueue.h> | |
ed94493f | 52 | #include <linux/phy.h> |
fbd6a754 | 53 | #include <linux/mv643xx_eth.h> |
1da177e4 LT |
54 | #include <asm/io.h> |
55 | #include <asm/types.h> | |
1da177e4 | 56 | #include <asm/system.h> |
fbd6a754 | 57 | |
e5371493 | 58 | static char mv643xx_eth_driver_name[] = "mv643xx_eth"; |
042af53c | 59 | static char mv643xx_eth_driver_version[] = "1.4"; |
c9df406f | 60 | |
fbd6a754 | 61 | |
fbd6a754 LB |
62 | /* |
63 | * Registers shared between all ports. | |
64 | */ | |
3cb4667c LB |
65 | #define PHY_ADDR 0x0000 |
66 | #define SMI_REG 0x0004 | |
45c5d3bc LB |
67 | #define SMI_BUSY 0x10000000 |
68 | #define SMI_READ_VALID 0x08000000 | |
69 | #define SMI_OPCODE_READ 0x04000000 | |
70 | #define SMI_OPCODE_WRITE 0x00000000 | |
71 | #define ERR_INT_CAUSE 0x0080 | |
72 | #define ERR_INT_SMI_DONE 0x00000010 | |
73 | #define ERR_INT_MASK 0x0084 | |
3cb4667c LB |
74 | #define WINDOW_BASE(w) (0x0200 + ((w) << 3)) |
75 | #define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) | |
76 | #define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) | |
77 | #define WINDOW_BAR_ENABLE 0x0290 | |
78 | #define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) | |
fbd6a754 LB |
79 | |
80 | /* | |
81 | * Per-port registers. | |
82 | */ | |
3cb4667c | 83 | #define PORT_CONFIG(p) (0x0400 + ((p) << 10)) |
d9a073ea | 84 | #define UNICAST_PROMISCUOUS_MODE 0x00000001 |
3cb4667c LB |
85 | #define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) |
86 | #define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) | |
87 | #define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) | |
88 | #define SDMA_CONFIG(p) (0x041c + ((p) << 10)) | |
89 | #define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) | |
90 | #define PORT_STATUS(p) (0x0444 + ((p) << 10)) | |
a2a41689 | 91 | #define TX_FIFO_EMPTY 0x00000400 |
ae9ae064 | 92 | #define TX_IN_PROGRESS 0x00000080 |
2f7eb47a LB |
93 | #define PORT_SPEED_MASK 0x00000030 |
94 | #define PORT_SPEED_1000 0x00000010 | |
95 | #define PORT_SPEED_100 0x00000020 | |
96 | #define PORT_SPEED_10 0x00000000 | |
97 | #define FLOW_CONTROL_ENABLED 0x00000008 | |
98 | #define FULL_DUPLEX 0x00000004 | |
81600eea | 99 | #define LINK_UP 0x00000002 |
3cb4667c | 100 | #define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) |
89df5fdc LB |
101 | #define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) |
102 | #define TX_BW_RATE(p) (0x0450 + ((p) << 10)) | |
3cb4667c | 103 | #define TX_BW_MTU(p) (0x0458 + ((p) << 10)) |
89df5fdc | 104 | #define TX_BW_BURST(p) (0x045c + ((p) << 10)) |
3cb4667c | 105 | #define INT_CAUSE(p) (0x0460 + ((p) << 10)) |
226bb6b7 | 106 | #define INT_TX_END 0x07f80000 |
befefe21 | 107 | #define INT_RX 0x000003fc |
073a345c | 108 | #define INT_EXT 0x00000002 |
3cb4667c | 109 | #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) |
befefe21 LB |
110 | #define INT_EXT_LINK_PHY 0x00110000 |
111 | #define INT_EXT_TX 0x000000ff | |
3cb4667c LB |
112 | #define INT_MASK(p) (0x0468 + ((p) << 10)) |
113 | #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) | |
114 | #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) | |
1e881592 LB |
115 | #define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) |
116 | #define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) | |
117 | #define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) | |
118 | #define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) | |
64da80a2 | 119 | #define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) |
3cb4667c | 120 | #define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) |
3d6b35bc LB |
121 | #define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) |
122 | #define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) | |
123 | #define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) | |
124 | #define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) | |
3cb4667c LB |
125 | #define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) |
126 | #define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) | |
127 | #define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) | |
128 | #define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) | |
fbd6a754 | 129 | |
2679a550 LB |
130 | |
131 | /* | |
132 | * SDMA configuration register. | |
133 | */ | |
cd4ccf76 | 134 | #define RX_BURST_SIZE_16_64BIT (4 << 1) |
fbd6a754 | 135 | #define BLM_RX_NO_SWAP (1 << 4) |
fbd6a754 | 136 | #define BLM_TX_NO_SWAP (1 << 5) |
cd4ccf76 | 137 | #define TX_BURST_SIZE_16_64BIT (4 << 22) |
fbd6a754 LB |
138 | |
139 | #if defined(__BIG_ENDIAN) | |
140 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ | |
cd4ccf76 LB |
141 | RX_BURST_SIZE_16_64BIT | \ |
142 | TX_BURST_SIZE_16_64BIT | |
fbd6a754 LB |
143 | #elif defined(__LITTLE_ENDIAN) |
144 | #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ | |
cd4ccf76 | 145 | RX_BURST_SIZE_16_64BIT | \ |
fbd6a754 LB |
146 | BLM_RX_NO_SWAP | \ |
147 | BLM_TX_NO_SWAP | \ | |
cd4ccf76 | 148 | TX_BURST_SIZE_16_64BIT |
fbd6a754 LB |
149 | #else |
150 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined | |
151 | #endif | |
152 | ||
2beff77b LB |
153 | |
154 | /* | |
155 | * Port serial control register. | |
156 | */ | |
157 | #define SET_MII_SPEED_TO_100 (1 << 24) | |
158 | #define SET_GMII_SPEED_TO_1000 (1 << 23) | |
159 | #define SET_FULL_DUPLEX_MODE (1 << 21) | |
fbd6a754 | 160 | #define MAX_RX_PACKET_9700BYTE (5 << 17) |
2beff77b LB |
161 | #define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) |
162 | #define DO_NOT_FORCE_LINK_FAIL (1 << 10) | |
163 | #define SERIAL_PORT_CONTROL_RESERVED (1 << 9) | |
164 | #define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) | |
165 | #define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) | |
166 | #define FORCE_LINK_PASS (1 << 1) | |
167 | #define SERIAL_PORT_ENABLE (1 << 0) | |
fbd6a754 | 168 | |
2b4a624d LB |
169 | #define DEFAULT_RX_QUEUE_SIZE 128 |
170 | #define DEFAULT_TX_QUEUE_SIZE 256 | |
fbd6a754 | 171 | |
fbd6a754 | 172 | |
7ca72a3b LB |
173 | /* |
174 | * RX/TX descriptors. | |
fbd6a754 LB |
175 | */ |
176 | #if defined(__BIG_ENDIAN) | |
cc9754b3 | 177 | struct rx_desc { |
fbd6a754 LB |
178 | u16 byte_cnt; /* Descriptor buffer byte count */ |
179 | u16 buf_size; /* Buffer size */ | |
180 | u32 cmd_sts; /* Descriptor command status */ | |
181 | u32 next_desc_ptr; /* Next descriptor pointer */ | |
182 | u32 buf_ptr; /* Descriptor buffer pointer */ | |
183 | }; | |
184 | ||
cc9754b3 | 185 | struct tx_desc { |
fbd6a754 LB |
186 | u16 byte_cnt; /* buffer byte count */ |
187 | u16 l4i_chk; /* CPU provided TCP checksum */ | |
188 | u32 cmd_sts; /* Command/status field */ | |
189 | u32 next_desc_ptr; /* Pointer to next descriptor */ | |
190 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ | |
191 | }; | |
192 | #elif defined(__LITTLE_ENDIAN) | |
cc9754b3 | 193 | struct rx_desc { |
fbd6a754 LB |
194 | u32 cmd_sts; /* Descriptor command status */ |
195 | u16 buf_size; /* Buffer size */ | |
196 | u16 byte_cnt; /* Descriptor buffer byte count */ | |
197 | u32 buf_ptr; /* Descriptor buffer pointer */ | |
198 | u32 next_desc_ptr; /* Next descriptor pointer */ | |
199 | }; | |
200 | ||
cc9754b3 | 201 | struct tx_desc { |
fbd6a754 LB |
202 | u32 cmd_sts; /* Command/status field */ |
203 | u16 l4i_chk; /* CPU provided TCP checksum */ | |
204 | u16 byte_cnt; /* buffer byte count */ | |
205 | u32 buf_ptr; /* pointer to buffer for this descriptor*/ | |
206 | u32 next_desc_ptr; /* Pointer to next descriptor */ | |
207 | }; | |
208 | #else | |
209 | #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined | |
210 | #endif | |
211 | ||
7ca72a3b | 212 | /* RX & TX descriptor command */ |
cc9754b3 | 213 | #define BUFFER_OWNED_BY_DMA 0x80000000 |
7ca72a3b LB |
214 | |
215 | /* RX & TX descriptor status */ | |
cc9754b3 | 216 | #define ERROR_SUMMARY 0x00000001 |
7ca72a3b LB |
217 | |
218 | /* RX descriptor status */ | |
cc9754b3 LB |
219 | #define LAYER_4_CHECKSUM_OK 0x40000000 |
220 | #define RX_ENABLE_INTERRUPT 0x20000000 | |
221 | #define RX_FIRST_DESC 0x08000000 | |
222 | #define RX_LAST_DESC 0x04000000 | |
7ca72a3b LB |
223 | |
224 | /* TX descriptor command */ | |
cc9754b3 LB |
225 | #define TX_ENABLE_INTERRUPT 0x00800000 |
226 | #define GEN_CRC 0x00400000 | |
227 | #define TX_FIRST_DESC 0x00200000 | |
228 | #define TX_LAST_DESC 0x00100000 | |
229 | #define ZERO_PADDING 0x00080000 | |
230 | #define GEN_IP_V4_CHECKSUM 0x00040000 | |
231 | #define GEN_TCP_UDP_CHECKSUM 0x00020000 | |
232 | #define UDP_FRAME 0x00010000 | |
e32b6617 LB |
233 | #define MAC_HDR_EXTRA_4_BYTES 0x00008000 |
234 | #define MAC_HDR_EXTRA_8_BYTES 0x00000200 | |
7ca72a3b | 235 | |
cc9754b3 | 236 | #define TX_IHL_SHIFT 11 |
7ca72a3b LB |
237 | |
238 | ||
c9df406f | 239 | /* global *******************************************************************/ |
e5371493 | 240 | struct mv643xx_eth_shared_private { |
fc32b0e2 LB |
241 | /* |
242 | * Ethernet controller base address. | |
243 | */ | |
cc9754b3 | 244 | void __iomem *base; |
c9df406f | 245 | |
fc0eb9f2 LB |
246 | /* |
247 | * Points at the right SMI instance to use. | |
248 | */ | |
249 | struct mv643xx_eth_shared_private *smi; | |
250 | ||
fc32b0e2 | 251 | /* |
ed94493f | 252 | * Provides access to local SMI interface. |
fc32b0e2 | 253 | */ |
298cf9be | 254 | struct mii_bus *smi_bus; |
c9df406f | 255 | |
45c5d3bc LB |
256 | /* |
257 | * If we have access to the error interrupt pin (which is | |
258 | * somewhat misnamed as it not only reflects internal errors | |
259 | * but also reflects SMI completion), use that to wait for | |
260 | * SMI access completion instead of polling the SMI busy bit. | |
261 | */ | |
262 | int err_interrupt; | |
263 | wait_queue_head_t smi_busy_wait; | |
264 | ||
fc32b0e2 LB |
265 | /* |
266 | * Per-port MBUS window access register value. | |
267 | */ | |
c9df406f LB |
268 | u32 win_protect; |
269 | ||
fc32b0e2 LB |
270 | /* |
271 | * Hardware-specific parameters. | |
272 | */ | |
c9df406f | 273 | unsigned int t_clk; |
773fc3ee | 274 | int extended_rx_coal_limit; |
457b1d5a | 275 | int tx_bw_control; |
c9df406f LB |
276 | }; |
277 | ||
457b1d5a LB |
278 | #define TX_BW_CONTROL_ABSENT 0 |
279 | #define TX_BW_CONTROL_OLD_LAYOUT 1 | |
280 | #define TX_BW_CONTROL_NEW_LAYOUT 2 | |
281 | ||
c9df406f LB |
282 | |
283 | /* per-port *****************************************************************/ | |
e5371493 | 284 | struct mib_counters { |
fbd6a754 LB |
285 | u64 good_octets_received; |
286 | u32 bad_octets_received; | |
287 | u32 internal_mac_transmit_err; | |
288 | u32 good_frames_received; | |
289 | u32 bad_frames_received; | |
290 | u32 broadcast_frames_received; | |
291 | u32 multicast_frames_received; | |
292 | u32 frames_64_octets; | |
293 | u32 frames_65_to_127_octets; | |
294 | u32 frames_128_to_255_octets; | |
295 | u32 frames_256_to_511_octets; | |
296 | u32 frames_512_to_1023_octets; | |
297 | u32 frames_1024_to_max_octets; | |
298 | u64 good_octets_sent; | |
299 | u32 good_frames_sent; | |
300 | u32 excessive_collision; | |
301 | u32 multicast_frames_sent; | |
302 | u32 broadcast_frames_sent; | |
303 | u32 unrec_mac_control_received; | |
304 | u32 fc_sent; | |
305 | u32 good_fc_received; | |
306 | u32 bad_fc_received; | |
307 | u32 undersize_received; | |
308 | u32 fragments_received; | |
309 | u32 oversize_received; | |
310 | u32 jabber_received; | |
311 | u32 mac_receive_error; | |
312 | u32 bad_crc_event; | |
313 | u32 collision; | |
314 | u32 late_collision; | |
315 | }; | |
316 | ||
8a578111 | 317 | struct rx_queue { |
64da80a2 LB |
318 | int index; |
319 | ||
8a578111 LB |
320 | int rx_ring_size; |
321 | ||
322 | int rx_desc_count; | |
323 | int rx_curr_desc; | |
324 | int rx_used_desc; | |
325 | ||
326 | struct rx_desc *rx_desc_area; | |
327 | dma_addr_t rx_desc_dma; | |
328 | int rx_desc_area_size; | |
329 | struct sk_buff **rx_skb; | |
8a578111 LB |
330 | }; |
331 | ||
13d64285 | 332 | struct tx_queue { |
3d6b35bc LB |
333 | int index; |
334 | ||
13d64285 | 335 | int tx_ring_size; |
fbd6a754 | 336 | |
13d64285 LB |
337 | int tx_desc_count; |
338 | int tx_curr_desc; | |
339 | int tx_used_desc; | |
fbd6a754 | 340 | |
5daffe94 | 341 | struct tx_desc *tx_desc_area; |
fbd6a754 LB |
342 | dma_addr_t tx_desc_dma; |
343 | int tx_desc_area_size; | |
99ab08e0 LB |
344 | |
345 | struct sk_buff_head tx_skb; | |
8fd89211 LB |
346 | |
347 | unsigned long tx_packets; | |
348 | unsigned long tx_bytes; | |
349 | unsigned long tx_dropped; | |
13d64285 LB |
350 | }; |
351 | ||
352 | struct mv643xx_eth_private { | |
353 | struct mv643xx_eth_shared_private *shared; | |
fc32b0e2 | 354 | int port_num; |
13d64285 | 355 | |
fc32b0e2 | 356 | struct net_device *dev; |
fbd6a754 | 357 | |
ed94493f | 358 | struct phy_device *phy; |
fbd6a754 | 359 | |
4ff3495a LB |
360 | struct timer_list mib_counters_timer; |
361 | spinlock_t mib_counters_lock; | |
fc32b0e2 | 362 | struct mib_counters mib_counters; |
4ff3495a | 363 | |
fc32b0e2 | 364 | struct work_struct tx_timeout_task; |
8a578111 | 365 | |
1fa38c58 LB |
366 | struct napi_struct napi; |
367 | u8 work_link; | |
368 | u8 work_tx; | |
369 | u8 work_tx_end; | |
370 | u8 work_rx; | |
371 | u8 work_rx_refill; | |
372 | u8 work_rx_oom; | |
373 | ||
2bcb4b0f LB |
374 | int skb_size; |
375 | struct sk_buff_head rx_recycle; | |
376 | ||
8a578111 LB |
377 | /* |
378 | * RX state. | |
379 | */ | |
380 | int default_rx_ring_size; | |
381 | unsigned long rx_desc_sram_addr; | |
382 | int rx_desc_sram_size; | |
f7981c1c | 383 | int rxq_count; |
2257e05c | 384 | struct timer_list rx_oom; |
64da80a2 | 385 | struct rx_queue rxq[8]; |
13d64285 LB |
386 | |
387 | /* | |
388 | * TX state. | |
389 | */ | |
390 | int default_tx_ring_size; | |
391 | unsigned long tx_desc_sram_addr; | |
392 | int tx_desc_sram_size; | |
f7981c1c | 393 | int txq_count; |
3d6b35bc | 394 | struct tx_queue txq[8]; |
fbd6a754 | 395 | }; |
1da177e4 | 396 | |
fbd6a754 | 397 | |
c9df406f | 398 | /* port register accessors **************************************************/ |
e5371493 | 399 | static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) |
c9df406f | 400 | { |
cc9754b3 | 401 | return readl(mp->shared->base + offset); |
c9df406f | 402 | } |
fbd6a754 | 403 | |
e5371493 | 404 | static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data) |
c9df406f | 405 | { |
cc9754b3 | 406 | writel(data, mp->shared->base + offset); |
c9df406f | 407 | } |
fbd6a754 | 408 | |
fbd6a754 | 409 | |
c9df406f | 410 | /* rxq/txq helper functions *************************************************/ |
8a578111 | 411 | static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) |
c9df406f | 412 | { |
64da80a2 | 413 | return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); |
c9df406f | 414 | } |
fbd6a754 | 415 | |
13d64285 LB |
416 | static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) |
417 | { | |
3d6b35bc | 418 | return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); |
13d64285 LB |
419 | } |
420 | ||
8a578111 | 421 | static void rxq_enable(struct rx_queue *rxq) |
c9df406f | 422 | { |
8a578111 | 423 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
64da80a2 | 424 | wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); |
8a578111 | 425 | } |
1da177e4 | 426 | |
8a578111 LB |
427 | static void rxq_disable(struct rx_queue *rxq) |
428 | { | |
429 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); | |
64da80a2 | 430 | u8 mask = 1 << rxq->index; |
1da177e4 | 431 | |
8a578111 LB |
432 | wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); |
433 | while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) | |
434 | udelay(10); | |
c9df406f LB |
435 | } |
436 | ||
6b368f68 LB |
437 | static void txq_reset_hw_ptr(struct tx_queue *txq) |
438 | { | |
439 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
440 | int off = TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index); | |
441 | u32 addr; | |
442 | ||
443 | addr = (u32)txq->tx_desc_dma; | |
444 | addr += txq->tx_curr_desc * sizeof(struct tx_desc); | |
445 | wrl(mp, off, addr); | |
446 | } | |
447 | ||
13d64285 | 448 | static void txq_enable(struct tx_queue *txq) |
1da177e4 | 449 | { |
13d64285 | 450 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
3d6b35bc | 451 | wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); |
1da177e4 LT |
452 | } |
453 | ||
13d64285 | 454 | static void txq_disable(struct tx_queue *txq) |
1da177e4 | 455 | { |
13d64285 | 456 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
3d6b35bc | 457 | u8 mask = 1 << txq->index; |
c9df406f | 458 | |
13d64285 LB |
459 | wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); |
460 | while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) | |
461 | udelay(10); | |
462 | } | |
463 | ||
1fa38c58 | 464 | static void txq_maybe_wake(struct tx_queue *txq) |
13d64285 LB |
465 | { |
466 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
e5ef1de1 | 467 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
3d6b35bc | 468 | |
8fd89211 LB |
469 | if (netif_tx_queue_stopped(nq)) { |
470 | __netif_tx_lock(nq, smp_processor_id()); | |
471 | if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1) | |
472 | netif_tx_wake_queue(nq); | |
473 | __netif_tx_unlock(nq); | |
474 | } | |
1da177e4 LT |
475 | } |
476 | ||
c9df406f | 477 | |
1fa38c58 | 478 | /* rx napi ******************************************************************/ |
8a578111 | 479 | static int rxq_process(struct rx_queue *rxq, int budget) |
1da177e4 | 480 | { |
8a578111 LB |
481 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
482 | struct net_device_stats *stats = &mp->dev->stats; | |
483 | int rx; | |
1da177e4 | 484 | |
8a578111 | 485 | rx = 0; |
9e1f3772 | 486 | while (rx < budget && rxq->rx_desc_count) { |
fc32b0e2 | 487 | struct rx_desc *rx_desc; |
96587661 | 488 | unsigned int cmd_sts; |
fc32b0e2 | 489 | struct sk_buff *skb; |
6b8f90c2 | 490 | u16 byte_cnt; |
ff561eef | 491 | |
8a578111 | 492 | rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; |
1da177e4 | 493 | |
96587661 | 494 | cmd_sts = rx_desc->cmd_sts; |
2257e05c | 495 | if (cmd_sts & BUFFER_OWNED_BY_DMA) |
96587661 | 496 | break; |
96587661 | 497 | rmb(); |
1da177e4 | 498 | |
8a578111 LB |
499 | skb = rxq->rx_skb[rxq->rx_curr_desc]; |
500 | rxq->rx_skb[rxq->rx_curr_desc] = NULL; | |
ff561eef | 501 | |
9da78745 LB |
502 | rxq->rx_curr_desc++; |
503 | if (rxq->rx_curr_desc == rxq->rx_ring_size) | |
504 | rxq->rx_curr_desc = 0; | |
ff561eef | 505 | |
3a499481 | 506 | dma_unmap_single(NULL, rx_desc->buf_ptr, |
abe78717 | 507 | rx_desc->buf_size, DMA_FROM_DEVICE); |
8a578111 LB |
508 | rxq->rx_desc_count--; |
509 | rx++; | |
b1dd9ca1 | 510 | |
1fa38c58 LB |
511 | mp->work_rx_refill |= 1 << rxq->index; |
512 | ||
6b8f90c2 LB |
513 | byte_cnt = rx_desc->byte_cnt; |
514 | ||
468d09f8 DF |
515 | /* |
516 | * Update statistics. | |
fc32b0e2 LB |
517 | * |
518 | * Note that the descriptor byte count includes 2 dummy | |
519 | * bytes automatically inserted by the hardware at the | |
520 | * start of the packet (which we don't count), and a 4 | |
521 | * byte CRC at the end of the packet (which we do count). | |
468d09f8 | 522 | */ |
1da177e4 | 523 | stats->rx_packets++; |
6b8f90c2 | 524 | stats->rx_bytes += byte_cnt - 2; |
96587661 | 525 | |
1da177e4 | 526 | /* |
fc32b0e2 LB |
527 | * In case we received a packet without first / last bits |
528 | * on, or the error summary bit is set, the packet needs | |
529 | * to be dropped. | |
1da177e4 | 530 | */ |
96587661 | 531 | if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
cc9754b3 | 532 | (RX_FIRST_DESC | RX_LAST_DESC)) |
96587661 | 533 | || (cmd_sts & ERROR_SUMMARY)) { |
1da177e4 | 534 | stats->rx_dropped++; |
fc32b0e2 | 535 | |
96587661 | 536 | if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != |
cc9754b3 | 537 | (RX_FIRST_DESC | RX_LAST_DESC)) { |
1da177e4 | 538 | if (net_ratelimit()) |
fc32b0e2 LB |
539 | dev_printk(KERN_ERR, &mp->dev->dev, |
540 | "received packet spanning " | |
541 | "multiple descriptors\n"); | |
1da177e4 | 542 | } |
fc32b0e2 | 543 | |
96587661 | 544 | if (cmd_sts & ERROR_SUMMARY) |
1da177e4 LT |
545 | stats->rx_errors++; |
546 | ||
78fff83b | 547 | dev_kfree_skb(skb); |
1da177e4 LT |
548 | } else { |
549 | /* | |
550 | * The -4 is for the CRC in the trailer of the | |
551 | * received packet | |
552 | */ | |
6b8f90c2 | 553 | skb_put(skb, byte_cnt - 2 - 4); |
1da177e4 | 554 | |
170e7108 | 555 | if (cmd_sts & LAYER_4_CHECKSUM_OK) |
1da177e4 | 556 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
8a578111 | 557 | skb->protocol = eth_type_trans(skb, mp->dev); |
1da177e4 | 558 | netif_receive_skb(skb); |
1da177e4 LT |
559 | } |
560 | } | |
fc32b0e2 | 561 | |
1fa38c58 LB |
562 | if (rx < budget) |
563 | mp->work_rx &= ~(1 << rxq->index); | |
564 | ||
8a578111 | 565 | return rx; |
1da177e4 LT |
566 | } |
567 | ||
1fa38c58 | 568 | static int rxq_refill(struct rx_queue *rxq, int budget) |
d0412d96 | 569 | { |
1fa38c58 | 570 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
1fa38c58 | 571 | int refilled; |
8a578111 | 572 | |
1fa38c58 LB |
573 | refilled = 0; |
574 | while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { | |
575 | struct sk_buff *skb; | |
576 | int unaligned; | |
577 | int rx; | |
d0412d96 | 578 | |
2bcb4b0f LB |
579 | skb = __skb_dequeue(&mp->rx_recycle); |
580 | if (skb == NULL) | |
581 | skb = dev_alloc_skb(mp->skb_size + | |
582 | dma_get_cache_alignment() - 1); | |
583 | ||
1fa38c58 LB |
584 | if (skb == NULL) { |
585 | mp->work_rx_oom |= 1 << rxq->index; | |
586 | goto oom; | |
587 | } | |
d0412d96 | 588 | |
1fa38c58 LB |
589 | unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); |
590 | if (unaligned) | |
591 | skb_reserve(skb, dma_get_cache_alignment() - unaligned); | |
2257e05c | 592 | |
1fa38c58 LB |
593 | refilled++; |
594 | rxq->rx_desc_count++; | |
c9df406f | 595 | |
1fa38c58 LB |
596 | rx = rxq->rx_used_desc++; |
597 | if (rxq->rx_used_desc == rxq->rx_ring_size) | |
598 | rxq->rx_used_desc = 0; | |
2257e05c | 599 | |
1fa38c58 | 600 | rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, |
2bcb4b0f LB |
601 | mp->skb_size, DMA_FROM_DEVICE); |
602 | rxq->rx_desc_area[rx].buf_size = mp->skb_size; | |
1fa38c58 LB |
603 | rxq->rx_skb[rx] = skb; |
604 | wmb(); | |
605 | rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | | |
606 | RX_ENABLE_INTERRUPT; | |
607 | wmb(); | |
2257e05c | 608 | |
1fa38c58 LB |
609 | /* |
610 | * The hardware automatically prepends 2 bytes of | |
611 | * dummy data to each received packet, so that the | |
612 | * IP header ends up 16-byte aligned. | |
613 | */ | |
614 | skb_reserve(skb, 2); | |
615 | } | |
616 | ||
617 | if (refilled < budget) | |
618 | mp->work_rx_refill &= ~(1 << rxq->index); | |
619 | ||
620 | oom: | |
621 | return refilled; | |
d0412d96 JC |
622 | } |
623 | ||
c9df406f LB |
624 | |
625 | /* tx ***********************************************************************/ | |
c9df406f | 626 | static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) |
1da177e4 | 627 | { |
13d64285 | 628 | int frag; |
1da177e4 | 629 | |
c9df406f | 630 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { |
13d64285 LB |
631 | skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; |
632 | if (fragp->size <= 8 && fragp->page_offset & 7) | |
c9df406f | 633 | return 1; |
1da177e4 | 634 | } |
13d64285 | 635 | |
c9df406f LB |
636 | return 0; |
637 | } | |
7303fde8 | 638 | |
13d64285 | 639 | static int txq_alloc_desc_index(struct tx_queue *txq) |
c9df406f LB |
640 | { |
641 | int tx_desc_curr; | |
d0412d96 | 642 | |
13d64285 | 643 | BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); |
1da177e4 | 644 | |
9da78745 LB |
645 | tx_desc_curr = txq->tx_curr_desc++; |
646 | if (txq->tx_curr_desc == txq->tx_ring_size) | |
647 | txq->tx_curr_desc = 0; | |
e4d00fa9 | 648 | |
13d64285 | 649 | BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); |
468d09f8 | 650 | |
c9df406f LB |
651 | return tx_desc_curr; |
652 | } | |
468d09f8 | 653 | |
13d64285 | 654 | static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) |
c9df406f | 655 | { |
13d64285 | 656 | int nr_frags = skb_shinfo(skb)->nr_frags; |
c9df406f | 657 | int frag; |
1da177e4 | 658 | |
13d64285 LB |
659 | for (frag = 0; frag < nr_frags; frag++) { |
660 | skb_frag_t *this_frag; | |
661 | int tx_index; | |
662 | struct tx_desc *desc; | |
663 | ||
664 | this_frag = &skb_shinfo(skb)->frags[frag]; | |
665 | tx_index = txq_alloc_desc_index(txq); | |
666 | desc = &txq->tx_desc_area[tx_index]; | |
667 | ||
668 | /* | |
669 | * The last fragment will generate an interrupt | |
670 | * which will free the skb on TX completion. | |
671 | */ | |
672 | if (frag == nr_frags - 1) { | |
673 | desc->cmd_sts = BUFFER_OWNED_BY_DMA | | |
674 | ZERO_PADDING | TX_LAST_DESC | | |
675 | TX_ENABLE_INTERRUPT; | |
13d64285 LB |
676 | } else { |
677 | desc->cmd_sts = BUFFER_OWNED_BY_DMA; | |
13d64285 LB |
678 | } |
679 | ||
c9df406f LB |
680 | desc->l4i_chk = 0; |
681 | desc->byte_cnt = this_frag->size; | |
682 | desc->buf_ptr = dma_map_page(NULL, this_frag->page, | |
683 | this_frag->page_offset, | |
684 | this_frag->size, | |
685 | DMA_TO_DEVICE); | |
686 | } | |
1da177e4 LT |
687 | } |
688 | ||
c9df406f LB |
689 | static inline __be16 sum16_as_be(__sum16 sum) |
690 | { | |
691 | return (__force __be16)sum; | |
692 | } | |
1da177e4 | 693 | |
4df89bd5 | 694 | static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) |
1da177e4 | 695 | { |
8fa89bf5 | 696 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
13d64285 | 697 | int nr_frags = skb_shinfo(skb)->nr_frags; |
c9df406f | 698 | int tx_index; |
cc9754b3 | 699 | struct tx_desc *desc; |
c9df406f | 700 | u32 cmd_sts; |
4df89bd5 | 701 | u16 l4i_chk; |
c9df406f | 702 | int length; |
1da177e4 | 703 | |
cc9754b3 | 704 | cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; |
4df89bd5 | 705 | l4i_chk = 0; |
c9df406f LB |
706 | |
707 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
4df89bd5 | 708 | int tag_bytes; |
e32b6617 LB |
709 | |
710 | BUG_ON(skb->protocol != htons(ETH_P_IP) && | |
711 | skb->protocol != htons(ETH_P_8021Q)); | |
c9df406f | 712 | |
4df89bd5 LB |
713 | tag_bytes = (void *)ip_hdr(skb) - (void *)skb->data - ETH_HLEN; |
714 | if (unlikely(tag_bytes & ~12)) { | |
715 | if (skb_checksum_help(skb) == 0) | |
716 | goto no_csum; | |
717 | kfree_skb(skb); | |
718 | return 1; | |
719 | } | |
c9df406f | 720 | |
4df89bd5 | 721 | if (tag_bytes & 4) |
e32b6617 | 722 | cmd_sts |= MAC_HDR_EXTRA_4_BYTES; |
4df89bd5 | 723 | if (tag_bytes & 8) |
e32b6617 | 724 | cmd_sts |= MAC_HDR_EXTRA_8_BYTES; |
4df89bd5 LB |
725 | |
726 | cmd_sts |= GEN_TCP_UDP_CHECKSUM | | |
727 | GEN_IP_V4_CHECKSUM | | |
728 | ip_hdr(skb)->ihl << TX_IHL_SHIFT; | |
e32b6617 | 729 | |
c9df406f LB |
730 | switch (ip_hdr(skb)->protocol) { |
731 | case IPPROTO_UDP: | |
cc9754b3 | 732 | cmd_sts |= UDP_FRAME; |
4df89bd5 | 733 | l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); |
c9df406f LB |
734 | break; |
735 | case IPPROTO_TCP: | |
4df89bd5 | 736 | l4i_chk = ntohs(sum16_as_be(tcp_hdr(skb)->check)); |
c9df406f LB |
737 | break; |
738 | default: | |
739 | BUG(); | |
740 | } | |
741 | } else { | |
4df89bd5 | 742 | no_csum: |
c9df406f | 743 | /* Errata BTS #50, IHL must be 5 if no HW checksum */ |
cc9754b3 | 744 | cmd_sts |= 5 << TX_IHL_SHIFT; |
c9df406f LB |
745 | } |
746 | ||
4df89bd5 LB |
747 | tx_index = txq_alloc_desc_index(txq); |
748 | desc = &txq->tx_desc_area[tx_index]; | |
749 | ||
750 | if (nr_frags) { | |
751 | txq_submit_frag_skb(txq, skb); | |
752 | length = skb_headlen(skb); | |
753 | } else { | |
754 | cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; | |
755 | length = skb->len; | |
756 | } | |
757 | ||
758 | desc->l4i_chk = l4i_chk; | |
759 | desc->byte_cnt = length; | |
760 | desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE); | |
761 | ||
99ab08e0 LB |
762 | __skb_queue_tail(&txq->tx_skb, skb); |
763 | ||
c9df406f LB |
764 | /* ensure all other descriptors are written before first cmd_sts */ |
765 | wmb(); | |
766 | desc->cmd_sts = cmd_sts; | |
767 | ||
1fa38c58 LB |
768 | /* clear TX_END status */ |
769 | mp->work_tx_end &= ~(1 << txq->index); | |
8fa89bf5 | 770 | |
c9df406f LB |
771 | /* ensure all descriptors are written before poking hardware */ |
772 | wmb(); | |
13d64285 | 773 | txq_enable(txq); |
c9df406f | 774 | |
13d64285 | 775 | txq->tx_desc_count += nr_frags + 1; |
4df89bd5 LB |
776 | |
777 | return 0; | |
1da177e4 | 778 | } |
1da177e4 | 779 | |
fc32b0e2 | 780 | static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 781 | { |
e5371493 | 782 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
e5ef1de1 | 783 | int queue; |
13d64285 | 784 | struct tx_queue *txq; |
e5ef1de1 | 785 | struct netdev_queue *nq; |
afdb57a2 | 786 | |
8fd89211 LB |
787 | queue = skb_get_queue_mapping(skb); |
788 | txq = mp->txq + queue; | |
789 | nq = netdev_get_tx_queue(dev, queue); | |
790 | ||
c9df406f | 791 | if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { |
8fd89211 | 792 | txq->tx_dropped++; |
fc32b0e2 LB |
793 | dev_printk(KERN_DEBUG, &dev->dev, |
794 | "failed to linearize skb with tiny " | |
795 | "unaligned fragment\n"); | |
c9df406f LB |
796 | return NETDEV_TX_BUSY; |
797 | } | |
798 | ||
17cd0a59 | 799 | if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { |
e5ef1de1 LB |
800 | if (net_ratelimit()) |
801 | dev_printk(KERN_ERR, &dev->dev, "tx queue full?!\n"); | |
3d6b35bc LB |
802 | kfree_skb(skb); |
803 | return NETDEV_TX_OK; | |
c9df406f LB |
804 | } |
805 | ||
4df89bd5 LB |
806 | if (!txq_submit_skb(txq, skb)) { |
807 | int entries_left; | |
808 | ||
809 | txq->tx_bytes += skb->len; | |
810 | txq->tx_packets++; | |
811 | dev->trans_start = jiffies; | |
c9df406f | 812 | |
4df89bd5 LB |
813 | entries_left = txq->tx_ring_size - txq->tx_desc_count; |
814 | if (entries_left < MAX_SKB_FRAGS + 1) | |
815 | netif_tx_stop_queue(nq); | |
816 | } | |
c9df406f | 817 | |
c9df406f | 818 | return NETDEV_TX_OK; |
1da177e4 LT |
819 | } |
820 | ||
c9df406f | 821 | |
1fa38c58 LB |
822 | /* tx napi ******************************************************************/ |
823 | static void txq_kick(struct tx_queue *txq) | |
824 | { | |
825 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
8fd89211 | 826 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
1fa38c58 LB |
827 | u32 hw_desc_ptr; |
828 | u32 expected_ptr; | |
829 | ||
8fd89211 | 830 | __netif_tx_lock(nq, smp_processor_id()); |
1fa38c58 LB |
831 | |
832 | if (rdl(mp, TXQ_COMMAND(mp->port_num)) & (1 << txq->index)) | |
833 | goto out; | |
834 | ||
835 | hw_desc_ptr = rdl(mp, TXQ_CURRENT_DESC_PTR(mp->port_num, txq->index)); | |
836 | expected_ptr = (u32)txq->tx_desc_dma + | |
837 | txq->tx_curr_desc * sizeof(struct tx_desc); | |
838 | ||
839 | if (hw_desc_ptr != expected_ptr) | |
840 | txq_enable(txq); | |
841 | ||
842 | out: | |
8fd89211 | 843 | __netif_tx_unlock(nq); |
1fa38c58 LB |
844 | |
845 | mp->work_tx_end &= ~(1 << txq->index); | |
846 | } | |
847 | ||
848 | static int txq_reclaim(struct tx_queue *txq, int budget, int force) | |
849 | { | |
850 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
8fd89211 | 851 | struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); |
1fa38c58 LB |
852 | int reclaimed; |
853 | ||
8fd89211 | 854 | __netif_tx_lock(nq, smp_processor_id()); |
1fa38c58 LB |
855 | |
856 | reclaimed = 0; | |
857 | while (reclaimed < budget && txq->tx_desc_count > 0) { | |
858 | int tx_index; | |
859 | struct tx_desc *desc; | |
860 | u32 cmd_sts; | |
861 | struct sk_buff *skb; | |
1fa38c58 LB |
862 | |
863 | tx_index = txq->tx_used_desc; | |
864 | desc = &txq->tx_desc_area[tx_index]; | |
865 | cmd_sts = desc->cmd_sts; | |
866 | ||
867 | if (cmd_sts & BUFFER_OWNED_BY_DMA) { | |
868 | if (!force) | |
869 | break; | |
870 | desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; | |
871 | } | |
872 | ||
873 | txq->tx_used_desc = tx_index + 1; | |
874 | if (txq->tx_used_desc == txq->tx_ring_size) | |
875 | txq->tx_used_desc = 0; | |
876 | ||
877 | reclaimed++; | |
878 | txq->tx_desc_count--; | |
879 | ||
99ab08e0 LB |
880 | skb = NULL; |
881 | if (cmd_sts & TX_LAST_DESC) | |
882 | skb = __skb_dequeue(&txq->tx_skb); | |
1fa38c58 LB |
883 | |
884 | if (cmd_sts & ERROR_SUMMARY) { | |
885 | dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); | |
886 | mp->dev->stats.tx_errors++; | |
887 | } | |
888 | ||
a418950c LB |
889 | if (cmd_sts & TX_FIRST_DESC) { |
890 | dma_unmap_single(NULL, desc->buf_ptr, | |
891 | desc->byte_cnt, DMA_TO_DEVICE); | |
892 | } else { | |
893 | dma_unmap_page(NULL, desc->buf_ptr, | |
894 | desc->byte_cnt, DMA_TO_DEVICE); | |
895 | } | |
1fa38c58 | 896 | |
2bcb4b0f LB |
897 | if (skb != NULL) { |
898 | if (skb_queue_len(&mp->rx_recycle) < | |
899 | mp->default_rx_ring_size && | |
900 | skb_recycle_check(skb, mp->skb_size)) | |
901 | __skb_queue_head(&mp->rx_recycle, skb); | |
902 | else | |
903 | dev_kfree_skb(skb); | |
904 | } | |
1fa38c58 LB |
905 | } |
906 | ||
8fd89211 LB |
907 | __netif_tx_unlock(nq); |
908 | ||
1fa38c58 LB |
909 | if (reclaimed < budget) |
910 | mp->work_tx &= ~(1 << txq->index); | |
911 | ||
1fa38c58 LB |
912 | return reclaimed; |
913 | } | |
914 | ||
915 | ||
89df5fdc LB |
916 | /* tx rate control **********************************************************/ |
917 | /* | |
918 | * Set total maximum TX rate (shared by all TX queues for this port) | |
919 | * to 'rate' bits per second, with a maximum burst of 'burst' bytes. | |
920 | */ | |
921 | static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) | |
922 | { | |
923 | int token_rate; | |
924 | int mtu; | |
925 | int bucket_size; | |
926 | ||
927 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); | |
928 | if (token_rate > 1023) | |
929 | token_rate = 1023; | |
930 | ||
931 | mtu = (mp->dev->mtu + 255) >> 8; | |
932 | if (mtu > 63) | |
933 | mtu = 63; | |
934 | ||
935 | bucket_size = (burst + 255) >> 8; | |
936 | if (bucket_size > 65535) | |
937 | bucket_size = 65535; | |
938 | ||
457b1d5a LB |
939 | switch (mp->shared->tx_bw_control) { |
940 | case TX_BW_CONTROL_OLD_LAYOUT: | |
1e881592 LB |
941 | wrl(mp, TX_BW_RATE(mp->port_num), token_rate); |
942 | wrl(mp, TX_BW_MTU(mp->port_num), mtu); | |
943 | wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); | |
457b1d5a LB |
944 | break; |
945 | case TX_BW_CONTROL_NEW_LAYOUT: | |
946 | wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); | |
947 | wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); | |
948 | wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); | |
949 | break; | |
1e881592 | 950 | } |
89df5fdc LB |
951 | } |
952 | ||
953 | static void txq_set_rate(struct tx_queue *txq, int rate, int burst) | |
954 | { | |
955 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
956 | int token_rate; | |
957 | int bucket_size; | |
958 | ||
959 | token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); | |
960 | if (token_rate > 1023) | |
961 | token_rate = 1023; | |
962 | ||
963 | bucket_size = (burst + 255) >> 8; | |
964 | if (bucket_size > 65535) | |
965 | bucket_size = 65535; | |
966 | ||
3d6b35bc LB |
967 | wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); |
968 | wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), | |
89df5fdc LB |
969 | (bucket_size << 10) | token_rate); |
970 | } | |
971 | ||
972 | static void txq_set_fixed_prio_mode(struct tx_queue *txq) | |
973 | { | |
974 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
975 | int off; | |
976 | u32 val; | |
977 | ||
978 | /* | |
979 | * Turn on fixed priority mode. | |
980 | */ | |
457b1d5a LB |
981 | off = 0; |
982 | switch (mp->shared->tx_bw_control) { | |
983 | case TX_BW_CONTROL_OLD_LAYOUT: | |
1e881592 | 984 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
457b1d5a LB |
985 | break; |
986 | case TX_BW_CONTROL_NEW_LAYOUT: | |
987 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); | |
988 | break; | |
989 | } | |
89df5fdc | 990 | |
457b1d5a LB |
991 | if (off) { |
992 | val = rdl(mp, off); | |
993 | val |= 1 << txq->index; | |
994 | wrl(mp, off, val); | |
995 | } | |
89df5fdc LB |
996 | } |
997 | ||
998 | static void txq_set_wrr(struct tx_queue *txq, int weight) | |
999 | { | |
1000 | struct mv643xx_eth_private *mp = txq_to_mp(txq); | |
1001 | int off; | |
1002 | u32 val; | |
1003 | ||
1004 | /* | |
1005 | * Turn off fixed priority mode. | |
1006 | */ | |
457b1d5a LB |
1007 | off = 0; |
1008 | switch (mp->shared->tx_bw_control) { | |
1009 | case TX_BW_CONTROL_OLD_LAYOUT: | |
1e881592 | 1010 | off = TXQ_FIX_PRIO_CONF(mp->port_num); |
457b1d5a LB |
1011 | break; |
1012 | case TX_BW_CONTROL_NEW_LAYOUT: | |
1013 | off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); | |
1014 | break; | |
1015 | } | |
89df5fdc | 1016 | |
457b1d5a LB |
1017 | if (off) { |
1018 | val = rdl(mp, off); | |
1019 | val &= ~(1 << txq->index); | |
1020 | wrl(mp, off, val); | |
89df5fdc | 1021 | |
457b1d5a LB |
1022 | /* |
1023 | * Configure WRR weight for this queue. | |
1024 | */ | |
1025 | off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); | |
89df5fdc | 1026 | |
457b1d5a LB |
1027 | val = rdl(mp, off); |
1028 | val = (val & ~0xff) | (weight & 0xff); | |
1029 | wrl(mp, off, val); | |
1030 | } | |
89df5fdc LB |
1031 | } |
1032 | ||
1033 | ||
c9df406f | 1034 | /* mii management interface *************************************************/ |
45c5d3bc LB |
1035 | static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id) |
1036 | { | |
1037 | struct mv643xx_eth_shared_private *msp = dev_id; | |
1038 | ||
1039 | if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) { | |
1040 | writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE); | |
1041 | wake_up(&msp->smi_busy_wait); | |
1042 | return IRQ_HANDLED; | |
1043 | } | |
1044 | ||
1045 | return IRQ_NONE; | |
1046 | } | |
c9df406f | 1047 | |
45c5d3bc | 1048 | static int smi_is_done(struct mv643xx_eth_shared_private *msp) |
1da177e4 | 1049 | { |
45c5d3bc LB |
1050 | return !(readl(msp->base + SMI_REG) & SMI_BUSY); |
1051 | } | |
1da177e4 | 1052 | |
45c5d3bc LB |
1053 | static int smi_wait_ready(struct mv643xx_eth_shared_private *msp) |
1054 | { | |
1055 | if (msp->err_interrupt == NO_IRQ) { | |
1056 | int i; | |
c9df406f | 1057 | |
45c5d3bc LB |
1058 | for (i = 0; !smi_is_done(msp); i++) { |
1059 | if (i == 10) | |
1060 | return -ETIMEDOUT; | |
1061 | msleep(10); | |
c9df406f | 1062 | } |
45c5d3bc LB |
1063 | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | if (!wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp), | |
1068 | msecs_to_jiffies(100))) | |
1069 | return -ETIMEDOUT; | |
1070 | ||
1071 | return 0; | |
1072 | } | |
1073 | ||
ed94493f | 1074 | static int smi_bus_read(struct mii_bus *bus, int addr, int reg) |
45c5d3bc | 1075 | { |
ed94493f | 1076 | struct mv643xx_eth_shared_private *msp = bus->priv; |
45c5d3bc LB |
1077 | void __iomem *smi_reg = msp->base + SMI_REG; |
1078 | int ret; | |
1079 | ||
45c5d3bc | 1080 | if (smi_wait_ready(msp)) { |
ed94493f LB |
1081 | printk("mv643xx_eth: SMI bus busy timeout\n"); |
1082 | return -ETIMEDOUT; | |
1da177e4 LT |
1083 | } |
1084 | ||
fc32b0e2 | 1085 | writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); |
1da177e4 | 1086 | |
45c5d3bc | 1087 | if (smi_wait_ready(msp)) { |
ed94493f LB |
1088 | printk("mv643xx_eth: SMI bus busy timeout\n"); |
1089 | return -ETIMEDOUT; | |
45c5d3bc LB |
1090 | } |
1091 | ||
1092 | ret = readl(smi_reg); | |
1093 | if (!(ret & SMI_READ_VALID)) { | |
ed94493f LB |
1094 | printk("mv643xx_eth: SMI bus read not valid\n"); |
1095 | return -ENODEV; | |
c9df406f LB |
1096 | } |
1097 | ||
ed94493f | 1098 | return ret & 0xffff; |
1da177e4 LT |
1099 | } |
1100 | ||
ed94493f | 1101 | static int smi_bus_write(struct mii_bus *bus, int addr, int reg, u16 val) |
1da177e4 | 1102 | { |
ed94493f | 1103 | struct mv643xx_eth_shared_private *msp = bus->priv; |
45c5d3bc | 1104 | void __iomem *smi_reg = msp->base + SMI_REG; |
1da177e4 | 1105 | |
45c5d3bc | 1106 | if (smi_wait_ready(msp)) { |
ed94493f | 1107 | printk("mv643xx_eth: SMI bus busy timeout\n"); |
45c5d3bc | 1108 | return -ETIMEDOUT; |
1da177e4 LT |
1109 | } |
1110 | ||
fc32b0e2 | 1111 | writel(SMI_OPCODE_WRITE | (reg << 21) | |
ed94493f | 1112 | (addr << 16) | (val & 0xffff), smi_reg); |
45c5d3bc | 1113 | |
ed94493f LB |
1114 | if (smi_wait_ready(msp)) { |
1115 | printk("mv643xx_eth: SMI bus busy timeout\n"); | |
1116 | return -ETIMEDOUT; | |
1117 | } | |
45c5d3bc LB |
1118 | |
1119 | return 0; | |
c9df406f | 1120 | } |
1da177e4 | 1121 | |
c9df406f | 1122 | |
8fd89211 LB |
1123 | /* statistics ***************************************************************/ |
1124 | static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev) | |
1125 | { | |
1126 | struct mv643xx_eth_private *mp = netdev_priv(dev); | |
1127 | struct net_device_stats *stats = &dev->stats; | |
1128 | unsigned long tx_packets = 0; | |
1129 | unsigned long tx_bytes = 0; | |
1130 | unsigned long tx_dropped = 0; | |
1131 | int i; | |
1132 | ||
1133 | for (i = 0; i < mp->txq_count; i++) { | |
1134 | struct tx_queue *txq = mp->txq + i; | |
1135 | ||
1136 | tx_packets += txq->tx_packets; | |
1137 | tx_bytes += txq->tx_bytes; | |
1138 | tx_dropped += txq->tx_dropped; | |
1139 | } | |
1140 | ||
1141 | stats->tx_packets = tx_packets; | |
1142 | stats->tx_bytes = tx_bytes; | |
1143 | stats->tx_dropped = tx_dropped; | |
1144 | ||
1145 | return stats; | |
1146 | } | |
1147 | ||
fc32b0e2 | 1148 | static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) |
c9df406f | 1149 | { |
fc32b0e2 | 1150 | return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); |
1da177e4 LT |
1151 | } |
1152 | ||
fc32b0e2 | 1153 | static void mib_counters_clear(struct mv643xx_eth_private *mp) |
d0412d96 | 1154 | { |
fc32b0e2 LB |
1155 | int i; |
1156 | ||
1157 | for (i = 0; i < 0x80; i += 4) | |
1158 | mib_read(mp, i); | |
c9df406f | 1159 | } |
d0412d96 | 1160 | |
fc32b0e2 | 1161 | static void mib_counters_update(struct mv643xx_eth_private *mp) |
c9df406f | 1162 | { |
e5371493 | 1163 | struct mib_counters *p = &mp->mib_counters; |
4b8e3655 | 1164 | |
4ff3495a | 1165 | spin_lock(&mp->mib_counters_lock); |
fc32b0e2 LB |
1166 | p->good_octets_received += mib_read(mp, 0x00); |
1167 | p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; | |
1168 | p->bad_octets_received += mib_read(mp, 0x08); | |
1169 | p->internal_mac_transmit_err += mib_read(mp, 0x0c); | |
1170 | p->good_frames_received += mib_read(mp, 0x10); | |
1171 | p->bad_frames_received += mib_read(mp, 0x14); | |
1172 | p->broadcast_frames_received += mib_read(mp, 0x18); | |
1173 | p->multicast_frames_received += mib_read(mp, 0x1c); | |
1174 | p->frames_64_octets += mib_read(mp, 0x20); | |
1175 | p->frames_65_to_127_octets += mib_read(mp, 0x24); | |
1176 | p->frames_128_to_255_octets += mib_read(mp, 0x28); | |
1177 | p->frames_256_to_511_octets += mib_read(mp, 0x2c); | |
1178 | p->frames_512_to_1023_octets += mib_read(mp, 0x30); | |
1179 | p->frames_1024_to_max_octets += mib_read(mp, 0x34); | |
1180 | p->good_octets_sent += mib_read(mp, 0x38); | |
1181 | p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; | |
1182 | p->good_frames_sent += mib_read(mp, 0x40); | |
1183 | p->excessive_collision += mib_read(mp, 0x44); | |
1184 | p->multicast_frames_sent += mib_read(mp, 0x48); | |
1185 | p->broadcast_frames_sent += mib_read(mp, 0x4c); | |
1186 | p->unrec_mac_control_received += mib_read(mp, 0x50); | |
1187 | p->fc_sent += mib_read(mp, 0x54); | |
1188 | p->good_fc_received += mib_read(mp, 0x58); | |
1189 | p->bad_fc_received += mib_read(mp, 0x5c); | |
1190 | p->undersize_received += mib_read(mp, 0x60); | |
1191 | p->fragments_received += mib_read(mp, 0x64); | |
1192 | p->oversize_received += mib_read(mp, 0x68); | |
1193 | p->jabber_received += mib_read(mp, 0x6c); | |
1194 | p->mac_receive_error += mib_read(mp, 0x70); | |
1195 | p->bad_crc_event += mib_read(mp, 0x74); | |
1196 | p->collision += mib_read(mp, 0x78); | |
1197 | p->late_collision += mib_read(mp, 0x7c); | |
4ff3495a LB |
1198 | spin_unlock(&mp->mib_counters_lock); |
1199 | ||
1200 | mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); | |
1201 | } | |
1202 | ||
1203 | static void mib_counters_timer_wrapper(unsigned long _mp) | |
1204 | { | |
1205 | struct mv643xx_eth_private *mp = (void *)_mp; | |
1206 | ||
1207 | mib_counters_update(mp); | |
d0412d96 JC |
1208 | } |
1209 | ||
c9df406f LB |
1210 | |
1211 | /* ethtool ******************************************************************/ | |
e5371493 | 1212 | struct mv643xx_eth_stats { |
c9df406f LB |
1213 | char stat_string[ETH_GSTRING_LEN]; |
1214 | int sizeof_stat; | |
16820054 LB |
1215 | int netdev_off; |
1216 | int mp_off; | |
c9df406f LB |
1217 | }; |
1218 | ||
16820054 LB |
1219 | #define SSTAT(m) \ |
1220 | { #m, FIELD_SIZEOF(struct net_device_stats, m), \ | |
1221 | offsetof(struct net_device, stats.m), -1 } | |
1222 | ||
1223 | #define MIBSTAT(m) \ | |
1224 | { #m, FIELD_SIZEOF(struct mib_counters, m), \ | |
1225 | -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } | |
1226 | ||
1227 | static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { | |
1228 | SSTAT(rx_packets), | |
1229 | SSTAT(tx_packets), | |
1230 | SSTAT(rx_bytes), | |
1231 | SSTAT(tx_bytes), | |
1232 | SSTAT(rx_errors), | |
1233 | SSTAT(tx_errors), | |
1234 | SSTAT(rx_dropped), | |
1235 | SSTAT(tx_dropped), | |
1236 | MIBSTAT(good_octets_received), | |
1237 | MIBSTAT(bad_octets_received), | |
1238 | MIBSTAT(internal_mac_transmit_err), | |
1239 | MIBSTAT(good_frames_received), | |
1240 | MIBSTAT(bad_frames_received), | |
1241 | MIBSTAT(broadcast_frames_received), | |
1242 | MIBSTAT(multicast_frames_received), | |
1243 | MIBSTAT(frames_64_octets), | |
1244 | MIBSTAT(frames_65_to_127_octets), | |
1245 | MIBSTAT(frames_128_to_255_octets), | |
1246 | MIBSTAT(frames_256_to_511_octets), | |
1247 | MIBSTAT(frames_512_to_1023_octets), | |
1248 | MIBSTAT(frames_1024_to_max_octets), | |
1249 | MIBSTAT(good_octets_sent), | |
1250 | MIBSTAT(good_frames_sent), | |
1251 | MIBSTAT(excessive_collision), | |
1252 | MIBSTAT(multicast_frames_sent), | |
1253 | MIBSTAT(broadcast_frames_sent), | |
1254 | MIBSTAT(unrec_mac_control_received), | |
1255 | MIBSTAT(fc_sent), | |
1256 | MIBSTAT(good_fc_received), | |
1257 | MIBSTAT(bad_fc_received), | |
1258 | MIBSTAT(undersize_received), | |
1259 | MIBSTAT(fragments_received), | |
1260 | MIBSTAT(oversize_received), | |
1261 | MIBSTAT(jabber_received), | |
1262 | MIBSTAT(mac_receive_error), | |
1263 | MIBSTAT(bad_crc_event), | |
1264 | MIBSTAT(collision), | |
1265 | MIBSTAT(late_collision), | |
c9df406f LB |
1266 | }; |
1267 | ||
e5371493 | 1268 | static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
d0412d96 | 1269 | { |
e5371493 | 1270 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
d0412d96 JC |
1271 | int err; |
1272 | ||
ed94493f LB |
1273 | err = phy_read_status(mp->phy); |
1274 | if (err == 0) | |
1275 | err = phy_ethtool_gset(mp->phy, cmd); | |
d0412d96 | 1276 | |
fc32b0e2 LB |
1277 | /* |
1278 | * The MAC does not support 1000baseT_Half. | |
1279 | */ | |
d0412d96 JC |
1280 | cmd->supported &= ~SUPPORTED_1000baseT_Half; |
1281 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; | |
1282 | ||
1283 | return err; | |
1284 | } | |
1285 | ||
bedfe324 LB |
1286 | static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
1287 | { | |
81600eea LB |
1288 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1289 | u32 port_status; | |
1290 | ||
1291 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); | |
1292 | ||
bedfe324 LB |
1293 | cmd->supported = SUPPORTED_MII; |
1294 | cmd->advertising = ADVERTISED_MII; | |
81600eea LB |
1295 | switch (port_status & PORT_SPEED_MASK) { |
1296 | case PORT_SPEED_10: | |
1297 | cmd->speed = SPEED_10; | |
1298 | break; | |
1299 | case PORT_SPEED_100: | |
1300 | cmd->speed = SPEED_100; | |
1301 | break; | |
1302 | case PORT_SPEED_1000: | |
1303 | cmd->speed = SPEED_1000; | |
1304 | break; | |
1305 | default: | |
1306 | cmd->speed = -1; | |
1307 | break; | |
1308 | } | |
1309 | cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; | |
bedfe324 LB |
1310 | cmd->port = PORT_MII; |
1311 | cmd->phy_address = 0; | |
1312 | cmd->transceiver = XCVR_INTERNAL; | |
1313 | cmd->autoneg = AUTONEG_DISABLE; | |
1314 | cmd->maxtxpkt = 1; | |
1315 | cmd->maxrxpkt = 1; | |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
e5371493 | 1320 | static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 | 1321 | { |
e5371493 | 1322 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
ab4384a6 | 1323 | |
fc32b0e2 LB |
1324 | /* |
1325 | * The MAC does not support 1000baseT_Half. | |
1326 | */ | |
1327 | cmd->advertising &= ~ADVERTISED_1000baseT_Half; | |
1328 | ||
ed94493f | 1329 | return phy_ethtool_sset(mp->phy, cmd); |
c9df406f | 1330 | } |
1da177e4 | 1331 | |
bedfe324 LB |
1332 | static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) |
1333 | { | |
1334 | return -EINVAL; | |
1335 | } | |
1336 | ||
fc32b0e2 LB |
1337 | static void mv643xx_eth_get_drvinfo(struct net_device *dev, |
1338 | struct ethtool_drvinfo *drvinfo) | |
c9df406f | 1339 | { |
e5371493 LB |
1340 | strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); |
1341 | strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); | |
c9df406f | 1342 | strncpy(drvinfo->fw_version, "N/A", 32); |
fc32b0e2 | 1343 | strncpy(drvinfo->bus_info, "platform", 32); |
16820054 | 1344 | drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); |
c9df406f | 1345 | } |
1da177e4 | 1346 | |
fc32b0e2 | 1347 | static int mv643xx_eth_nway_reset(struct net_device *dev) |
c9df406f | 1348 | { |
e5371493 | 1349 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1da177e4 | 1350 | |
ed94493f | 1351 | return genphy_restart_aneg(mp->phy); |
c9df406f | 1352 | } |
1da177e4 | 1353 | |
bedfe324 LB |
1354 | static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) |
1355 | { | |
1356 | return -EINVAL; | |
1357 | } | |
1358 | ||
c9df406f LB |
1359 | static u32 mv643xx_eth_get_link(struct net_device *dev) |
1360 | { | |
ed94493f | 1361 | return !!netif_carrier_ok(dev); |
bedfe324 LB |
1362 | } |
1363 | ||
fc32b0e2 LB |
1364 | static void mv643xx_eth_get_strings(struct net_device *dev, |
1365 | uint32_t stringset, uint8_t *data) | |
c9df406f LB |
1366 | { |
1367 | int i; | |
1da177e4 | 1368 | |
fc32b0e2 LB |
1369 | if (stringset == ETH_SS_STATS) { |
1370 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { | |
c9df406f | 1371 | memcpy(data + i * ETH_GSTRING_LEN, |
16820054 | 1372 | mv643xx_eth_stats[i].stat_string, |
e5371493 | 1373 | ETH_GSTRING_LEN); |
c9df406f | 1374 | } |
c9df406f LB |
1375 | } |
1376 | } | |
1da177e4 | 1377 | |
fc32b0e2 LB |
1378 | static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, |
1379 | struct ethtool_stats *stats, | |
1380 | uint64_t *data) | |
c9df406f | 1381 | { |
b9873841 | 1382 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
c9df406f | 1383 | int i; |
1da177e4 | 1384 | |
8fd89211 | 1385 | mv643xx_eth_get_stats(dev); |
fc32b0e2 | 1386 | mib_counters_update(mp); |
1da177e4 | 1387 | |
16820054 LB |
1388 | for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { |
1389 | const struct mv643xx_eth_stats *stat; | |
1390 | void *p; | |
1391 | ||
1392 | stat = mv643xx_eth_stats + i; | |
1393 | ||
1394 | if (stat->netdev_off >= 0) | |
1395 | p = ((void *)mp->dev) + stat->netdev_off; | |
1396 | else | |
1397 | p = ((void *)mp) + stat->mp_off; | |
1398 | ||
1399 | data[i] = (stat->sizeof_stat == 8) ? | |
1400 | *(uint64_t *)p : *(uint32_t *)p; | |
1da177e4 | 1401 | } |
c9df406f | 1402 | } |
1da177e4 | 1403 | |
fc32b0e2 | 1404 | static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) |
c9df406f | 1405 | { |
fc32b0e2 | 1406 | if (sset == ETH_SS_STATS) |
16820054 | 1407 | return ARRAY_SIZE(mv643xx_eth_stats); |
fc32b0e2 LB |
1408 | |
1409 | return -EOPNOTSUPP; | |
c9df406f | 1410 | } |
1da177e4 | 1411 | |
e5371493 | 1412 | static const struct ethtool_ops mv643xx_eth_ethtool_ops = { |
fc32b0e2 LB |
1413 | .get_settings = mv643xx_eth_get_settings, |
1414 | .set_settings = mv643xx_eth_set_settings, | |
1415 | .get_drvinfo = mv643xx_eth_get_drvinfo, | |
1416 | .nway_reset = mv643xx_eth_nway_reset, | |
1417 | .get_link = mv643xx_eth_get_link, | |
c9df406f | 1418 | .set_sg = ethtool_op_set_sg, |
fc32b0e2 LB |
1419 | .get_strings = mv643xx_eth_get_strings, |
1420 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, | |
e5371493 | 1421 | .get_sset_count = mv643xx_eth_get_sset_count, |
c9df406f | 1422 | }; |
1da177e4 | 1423 | |
bedfe324 LB |
1424 | static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { |
1425 | .get_settings = mv643xx_eth_get_settings_phyless, | |
1426 | .set_settings = mv643xx_eth_set_settings_phyless, | |
1427 | .get_drvinfo = mv643xx_eth_get_drvinfo, | |
1428 | .nway_reset = mv643xx_eth_nway_reset_phyless, | |
ed94493f | 1429 | .get_link = mv643xx_eth_get_link, |
bedfe324 LB |
1430 | .set_sg = ethtool_op_set_sg, |
1431 | .get_strings = mv643xx_eth_get_strings, | |
1432 | .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, | |
1433 | .get_sset_count = mv643xx_eth_get_sset_count, | |
1434 | }; | |
1435 | ||
bea3348e | 1436 | |
c9df406f | 1437 | /* address handling *********************************************************/ |
5daffe94 | 1438 | static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) |
c9df406f | 1439 | { |
c9df406f LB |
1440 | unsigned int mac_h; |
1441 | unsigned int mac_l; | |
1da177e4 | 1442 | |
fc32b0e2 LB |
1443 | mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); |
1444 | mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); | |
1da177e4 | 1445 | |
5daffe94 LB |
1446 | addr[0] = (mac_h >> 24) & 0xff; |
1447 | addr[1] = (mac_h >> 16) & 0xff; | |
1448 | addr[2] = (mac_h >> 8) & 0xff; | |
1449 | addr[3] = mac_h & 0xff; | |
1450 | addr[4] = (mac_l >> 8) & 0xff; | |
1451 | addr[5] = mac_l & 0xff; | |
c9df406f | 1452 | } |
1da177e4 | 1453 | |
e5371493 | 1454 | static void init_mac_tables(struct mv643xx_eth_private *mp) |
c9df406f | 1455 | { |
fc32b0e2 | 1456 | int i; |
1da177e4 | 1457 | |
fc32b0e2 LB |
1458 | for (i = 0; i < 0x100; i += 4) { |
1459 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); | |
1460 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); | |
c9df406f | 1461 | } |
fc32b0e2 LB |
1462 | |
1463 | for (i = 0; i < 0x10; i += 4) | |
1464 | wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); | |
c9df406f | 1465 | } |
d0412d96 | 1466 | |
e5371493 | 1467 | static void set_filter_table_entry(struct mv643xx_eth_private *mp, |
fc32b0e2 | 1468 | int table, unsigned char entry) |
c9df406f LB |
1469 | { |
1470 | unsigned int table_reg; | |
ab4384a6 | 1471 | |
c9df406f | 1472 | /* Set "accepts frame bit" at specified table entry */ |
fc32b0e2 LB |
1473 | table_reg = rdl(mp, table + (entry & 0xfc)); |
1474 | table_reg |= 0x01 << (8 * (entry & 3)); | |
1475 | wrl(mp, table + (entry & 0xfc), table_reg); | |
1da177e4 LT |
1476 | } |
1477 | ||
5daffe94 | 1478 | static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr) |
1da177e4 | 1479 | { |
c9df406f LB |
1480 | unsigned int mac_h; |
1481 | unsigned int mac_l; | |
1482 | int table; | |
1da177e4 | 1483 | |
fc32b0e2 LB |
1484 | mac_l = (addr[4] << 8) | addr[5]; |
1485 | mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; | |
ff561eef | 1486 | |
fc32b0e2 LB |
1487 | wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); |
1488 | wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); | |
1da177e4 | 1489 | |
fc32b0e2 | 1490 | table = UNICAST_TABLE(mp->port_num); |
5daffe94 | 1491 | set_filter_table_entry(mp, table, addr[5] & 0x0f); |
1da177e4 LT |
1492 | } |
1493 | ||
fc32b0e2 | 1494 | static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) |
1da177e4 | 1495 | { |
e5371493 | 1496 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1da177e4 | 1497 | |
fc32b0e2 LB |
1498 | /* +2 is for the offset of the HW addr type */ |
1499 | memcpy(dev->dev_addr, addr + 2, 6); | |
1500 | ||
cc9754b3 LB |
1501 | init_mac_tables(mp); |
1502 | uc_addr_set(mp, dev->dev_addr); | |
1da177e4 LT |
1503 | |
1504 | return 0; | |
1505 | } | |
1506 | ||
69876569 LB |
1507 | static int addr_crc(unsigned char *addr) |
1508 | { | |
1509 | int crc = 0; | |
1510 | int i; | |
1511 | ||
1512 | for (i = 0; i < 6; i++) { | |
1513 | int j; | |
1514 | ||
1515 | crc = (crc ^ addr[i]) << 8; | |
1516 | for (j = 7; j >= 0; j--) { | |
1517 | if (crc & (0x100 << j)) | |
1518 | crc ^= 0x107 << j; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | return crc; | |
1523 | } | |
1524 | ||
fc32b0e2 | 1525 | static void mv643xx_eth_set_rx_mode(struct net_device *dev) |
1da177e4 | 1526 | { |
fc32b0e2 LB |
1527 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1528 | u32 port_config; | |
1529 | struct dev_addr_list *addr; | |
1530 | int i; | |
c8aaea25 | 1531 | |
fc32b0e2 LB |
1532 | port_config = rdl(mp, PORT_CONFIG(mp->port_num)); |
1533 | if (dev->flags & IFF_PROMISC) | |
1534 | port_config |= UNICAST_PROMISCUOUS_MODE; | |
1535 | else | |
1536 | port_config &= ~UNICAST_PROMISCUOUS_MODE; | |
1537 | wrl(mp, PORT_CONFIG(mp->port_num), port_config); | |
1da177e4 | 1538 | |
fc32b0e2 LB |
1539 | if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { |
1540 | int port_num = mp->port_num; | |
1541 | u32 accept = 0x01010101; | |
c8aaea25 | 1542 | |
fc32b0e2 LB |
1543 | for (i = 0; i < 0x100; i += 4) { |
1544 | wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); | |
1545 | wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); | |
c9df406f LB |
1546 | } |
1547 | return; | |
1548 | } | |
c8aaea25 | 1549 | |
fc32b0e2 LB |
1550 | for (i = 0; i < 0x100; i += 4) { |
1551 | wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); | |
1552 | wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); | |
1da177e4 LT |
1553 | } |
1554 | ||
fc32b0e2 LB |
1555 | for (addr = dev->mc_list; addr != NULL; addr = addr->next) { |
1556 | u8 *a = addr->da_addr; | |
1557 | int table; | |
324ff2c1 | 1558 | |
fc32b0e2 LB |
1559 | if (addr->da_addrlen != 6) |
1560 | continue; | |
1da177e4 | 1561 | |
fc32b0e2 LB |
1562 | if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { |
1563 | table = SPECIAL_MCAST_TABLE(mp->port_num); | |
1564 | set_filter_table_entry(mp, table, a[5]); | |
1565 | } else { | |
1566 | int crc = addr_crc(a); | |
1da177e4 | 1567 | |
fc32b0e2 LB |
1568 | table = OTHER_MCAST_TABLE(mp->port_num); |
1569 | set_filter_table_entry(mp, table, crc); | |
1570 | } | |
1571 | } | |
c9df406f | 1572 | } |
c8aaea25 | 1573 | |
c8aaea25 | 1574 | |
c9df406f | 1575 | /* rx/tx queue initialisation ***********************************************/ |
64da80a2 | 1576 | static int rxq_init(struct mv643xx_eth_private *mp, int index) |
c9df406f | 1577 | { |
64da80a2 | 1578 | struct rx_queue *rxq = mp->rxq + index; |
8a578111 LB |
1579 | struct rx_desc *rx_desc; |
1580 | int size; | |
c9df406f LB |
1581 | int i; |
1582 | ||
64da80a2 LB |
1583 | rxq->index = index; |
1584 | ||
8a578111 LB |
1585 | rxq->rx_ring_size = mp->default_rx_ring_size; |
1586 | ||
1587 | rxq->rx_desc_count = 0; | |
1588 | rxq->rx_curr_desc = 0; | |
1589 | rxq->rx_used_desc = 0; | |
1590 | ||
1591 | size = rxq->rx_ring_size * sizeof(struct rx_desc); | |
1592 | ||
f7981c1c | 1593 | if (index == 0 && size <= mp->rx_desc_sram_size) { |
8a578111 LB |
1594 | rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, |
1595 | mp->rx_desc_sram_size); | |
1596 | rxq->rx_desc_dma = mp->rx_desc_sram_addr; | |
1597 | } else { | |
1598 | rxq->rx_desc_area = dma_alloc_coherent(NULL, size, | |
1599 | &rxq->rx_desc_dma, | |
1600 | GFP_KERNEL); | |
f7ea3337 PJ |
1601 | } |
1602 | ||
8a578111 LB |
1603 | if (rxq->rx_desc_area == NULL) { |
1604 | dev_printk(KERN_ERR, &mp->dev->dev, | |
1605 | "can't allocate rx ring (%d bytes)\n", size); | |
1606 | goto out; | |
1607 | } | |
1608 | memset(rxq->rx_desc_area, 0, size); | |
1da177e4 | 1609 | |
8a578111 LB |
1610 | rxq->rx_desc_area_size = size; |
1611 | rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), | |
1612 | GFP_KERNEL); | |
1613 | if (rxq->rx_skb == NULL) { | |
1614 | dev_printk(KERN_ERR, &mp->dev->dev, | |
1615 | "can't allocate rx skb ring\n"); | |
1616 | goto out_free; | |
1617 | } | |
1618 | ||
1619 | rx_desc = (struct rx_desc *)rxq->rx_desc_area; | |
1620 | for (i = 0; i < rxq->rx_ring_size; i++) { | |
9da78745 LB |
1621 | int nexti; |
1622 | ||
1623 | nexti = i + 1; | |
1624 | if (nexti == rxq->rx_ring_size) | |
1625 | nexti = 0; | |
1626 | ||
8a578111 LB |
1627 | rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + |
1628 | nexti * sizeof(struct rx_desc); | |
1629 | } | |
1630 | ||
8a578111 LB |
1631 | return 0; |
1632 | ||
1633 | ||
1634 | out_free: | |
f7981c1c | 1635 | if (index == 0 && size <= mp->rx_desc_sram_size) |
8a578111 LB |
1636 | iounmap(rxq->rx_desc_area); |
1637 | else | |
1638 | dma_free_coherent(NULL, size, | |
1639 | rxq->rx_desc_area, | |
1640 | rxq->rx_desc_dma); | |
1641 | ||
1642 | out: | |
1643 | return -ENOMEM; | |
c9df406f | 1644 | } |
c8aaea25 | 1645 | |
8a578111 | 1646 | static void rxq_deinit(struct rx_queue *rxq) |
c9df406f | 1647 | { |
8a578111 LB |
1648 | struct mv643xx_eth_private *mp = rxq_to_mp(rxq); |
1649 | int i; | |
1650 | ||
1651 | rxq_disable(rxq); | |
c8aaea25 | 1652 | |
8a578111 LB |
1653 | for (i = 0; i < rxq->rx_ring_size; i++) { |
1654 | if (rxq->rx_skb[i]) { | |
1655 | dev_kfree_skb(rxq->rx_skb[i]); | |
1656 | rxq->rx_desc_count--; | |
1da177e4 | 1657 | } |
c8aaea25 | 1658 | } |
1da177e4 | 1659 | |
8a578111 LB |
1660 | if (rxq->rx_desc_count) { |
1661 | dev_printk(KERN_ERR, &mp->dev->dev, | |
1662 | "error freeing rx ring -- %d skbs stuck\n", | |
1663 | rxq->rx_desc_count); | |
1664 | } | |
1665 | ||
f7981c1c | 1666 | if (rxq->index == 0 && |
64da80a2 | 1667 | rxq->rx_desc_area_size <= mp->rx_desc_sram_size) |
8a578111 | 1668 | iounmap(rxq->rx_desc_area); |
c9df406f | 1669 | else |
8a578111 LB |
1670 | dma_free_coherent(NULL, rxq->rx_desc_area_size, |
1671 | rxq->rx_desc_area, rxq->rx_desc_dma); | |
1672 | ||
1673 | kfree(rxq->rx_skb); | |
c9df406f | 1674 | } |
1da177e4 | 1675 | |
3d6b35bc | 1676 | static int txq_init(struct mv643xx_eth_private *mp, int index) |
c9df406f | 1677 | { |
3d6b35bc | 1678 | struct tx_queue *txq = mp->txq + index; |
13d64285 LB |
1679 | struct tx_desc *tx_desc; |
1680 | int size; | |
c9df406f | 1681 | int i; |
1da177e4 | 1682 | |
3d6b35bc LB |
1683 | txq->index = index; |
1684 | ||
13d64285 LB |
1685 | txq->tx_ring_size = mp->default_tx_ring_size; |
1686 | ||
1687 | txq->tx_desc_count = 0; | |
1688 | txq->tx_curr_desc = 0; | |
1689 | txq->tx_used_desc = 0; | |
1690 | ||
1691 | size = txq->tx_ring_size * sizeof(struct tx_desc); | |
1692 | ||
f7981c1c | 1693 | if (index == 0 && size <= mp->tx_desc_sram_size) { |
13d64285 LB |
1694 | txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, |
1695 | mp->tx_desc_sram_size); | |
1696 | txq->tx_desc_dma = mp->tx_desc_sram_addr; | |
1697 | } else { | |
1698 | txq->tx_desc_area = dma_alloc_coherent(NULL, size, | |
1699 | &txq->tx_desc_dma, | |
1700 | GFP_KERNEL); | |
1701 | } | |
1702 | ||
1703 | if (txq->tx_desc_area == NULL) { | |
1704 | dev_printk(KERN_ERR, &mp->dev->dev, | |
1705 | "can't allocate tx ring (%d bytes)\n", size); | |
99ab08e0 | 1706 | return -ENOMEM; |
c9df406f | 1707 | } |
13d64285 LB |
1708 | memset(txq->tx_desc_area, 0, size); |
1709 | ||
1710 | txq->tx_desc_area_size = size; | |
13d64285 LB |
1711 | |
1712 | tx_desc = (struct tx_desc *)txq->tx_desc_area; | |
1713 | for (i = 0; i < txq->tx_ring_size; i++) { | |
6b368f68 | 1714 | struct tx_desc *txd = tx_desc + i; |
9da78745 LB |
1715 | int nexti; |
1716 | ||
1717 | nexti = i + 1; | |
1718 | if (nexti == txq->tx_ring_size) | |
1719 | nexti = 0; | |
6b368f68 LB |
1720 | |
1721 | txd->cmd_sts = 0; | |
1722 | txd->next_desc_ptr = txq->tx_desc_dma + | |
13d64285 LB |
1723 | nexti * sizeof(struct tx_desc); |
1724 | } | |
1725 | ||
99ab08e0 | 1726 | skb_queue_head_init(&txq->tx_skb); |
c9df406f | 1727 | |
99ab08e0 | 1728 | return 0; |
c8aaea25 | 1729 | } |
1da177e4 | 1730 | |
13d64285 | 1731 | static void txq_deinit(struct tx_queue *txq) |
c9df406f | 1732 | { |
13d64285 | 1733 | struct mv643xx_eth_private *mp = txq_to_mp(txq); |
fa3959f4 | 1734 | |
13d64285 | 1735 | txq_disable(txq); |
1fa38c58 | 1736 | txq_reclaim(txq, txq->tx_ring_size, 1); |
1da177e4 | 1737 | |
13d64285 | 1738 | BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); |
1da177e4 | 1739 | |
f7981c1c | 1740 | if (txq->index == 0 && |
3d6b35bc | 1741 | txq->tx_desc_area_size <= mp->tx_desc_sram_size) |
13d64285 | 1742 | iounmap(txq->tx_desc_area); |
c9df406f | 1743 | else |
13d64285 LB |
1744 | dma_free_coherent(NULL, txq->tx_desc_area_size, |
1745 | txq->tx_desc_area, txq->tx_desc_dma); | |
c9df406f | 1746 | } |
1da177e4 | 1747 | |
1da177e4 | 1748 | |
c9df406f | 1749 | /* netdev ops and related ***************************************************/ |
1fa38c58 LB |
1750 | static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp) |
1751 | { | |
1752 | u32 int_cause; | |
1753 | u32 int_cause_ext; | |
1754 | ||
1755 | int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & | |
1756 | (INT_TX_END | INT_RX | INT_EXT); | |
1757 | if (int_cause == 0) | |
1758 | return 0; | |
1759 | ||
1760 | int_cause_ext = 0; | |
1761 | if (int_cause & INT_EXT) | |
1762 | int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)); | |
1763 | ||
1764 | int_cause &= INT_TX_END | INT_RX; | |
1765 | if (int_cause) { | |
1766 | wrl(mp, INT_CAUSE(mp->port_num), ~int_cause); | |
1767 | mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) & | |
1768 | ~(rdl(mp, TXQ_COMMAND(mp->port_num)) & 0xff); | |
1769 | mp->work_rx |= (int_cause & INT_RX) >> 2; | |
1770 | } | |
1771 | ||
1772 | int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX; | |
1773 | if (int_cause_ext) { | |
1774 | wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); | |
1775 | if (int_cause_ext & INT_EXT_LINK_PHY) | |
1776 | mp->work_link = 1; | |
1777 | mp->work_tx |= int_cause_ext & INT_EXT_TX; | |
1778 | } | |
1779 | ||
1780 | return 1; | |
1781 | } | |
1782 | ||
1783 | static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) | |
1784 | { | |
1785 | struct net_device *dev = (struct net_device *)dev_id; | |
1786 | struct mv643xx_eth_private *mp = netdev_priv(dev); | |
1787 | ||
1788 | if (unlikely(!mv643xx_eth_collect_events(mp))) | |
1789 | return IRQ_NONE; | |
1790 | ||
1791 | wrl(mp, INT_MASK(mp->port_num), 0); | |
1792 | napi_schedule(&mp->napi); | |
1793 | ||
1794 | return IRQ_HANDLED; | |
1795 | } | |
1796 | ||
2f7eb47a LB |
1797 | static void handle_link_event(struct mv643xx_eth_private *mp) |
1798 | { | |
1799 | struct net_device *dev = mp->dev; | |
1800 | u32 port_status; | |
1801 | int speed; | |
1802 | int duplex; | |
1803 | int fc; | |
1804 | ||
1805 | port_status = rdl(mp, PORT_STATUS(mp->port_num)); | |
1806 | if (!(port_status & LINK_UP)) { | |
1807 | if (netif_carrier_ok(dev)) { | |
1808 | int i; | |
1809 | ||
1810 | printk(KERN_INFO "%s: link down\n", dev->name); | |
1811 | ||
1812 | netif_carrier_off(dev); | |
2f7eb47a | 1813 | |
f7981c1c | 1814 | for (i = 0; i < mp->txq_count; i++) { |
2f7eb47a LB |
1815 | struct tx_queue *txq = mp->txq + i; |
1816 | ||
1fa38c58 | 1817 | txq_reclaim(txq, txq->tx_ring_size, 1); |
f7981c1c | 1818 | txq_reset_hw_ptr(txq); |
2f7eb47a LB |
1819 | } |
1820 | } | |
1821 | return; | |
1822 | } | |
1823 | ||
1824 | switch (port_status & PORT_SPEED_MASK) { | |
1825 | case PORT_SPEED_10: | |
1826 | speed = 10; | |
1827 | break; | |
1828 | case PORT_SPEED_100: | |
1829 | speed = 100; | |
1830 | break; | |
1831 | case PORT_SPEED_1000: | |
1832 | speed = 1000; | |
1833 | break; | |
1834 | default: | |
1835 | speed = -1; | |
1836 | break; | |
1837 | } | |
1838 | duplex = (port_status & FULL_DUPLEX) ? 1 : 0; | |
1839 | fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; | |
1840 | ||
1841 | printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, " | |
1842 | "flow control %sabled\n", dev->name, | |
1843 | speed, duplex ? "full" : "half", | |
1844 | fc ? "en" : "dis"); | |
1845 | ||
4fdeca3f | 1846 | if (!netif_carrier_ok(dev)) |
2f7eb47a | 1847 | netif_carrier_on(dev); |
2f7eb47a LB |
1848 | } |
1849 | ||
1fa38c58 | 1850 | static int mv643xx_eth_poll(struct napi_struct *napi, int budget) |
c9df406f | 1851 | { |
1fa38c58 LB |
1852 | struct mv643xx_eth_private *mp; |
1853 | int work_done; | |
ce4e2e45 | 1854 | |
1fa38c58 | 1855 | mp = container_of(napi, struct mv643xx_eth_private, napi); |
fc32b0e2 | 1856 | |
1fa38c58 LB |
1857 | mp->work_rx_refill |= mp->work_rx_oom; |
1858 | mp->work_rx_oom = 0; | |
1da177e4 | 1859 | |
1fa38c58 LB |
1860 | work_done = 0; |
1861 | while (work_done < budget) { | |
1862 | u8 queue_mask; | |
1863 | int queue; | |
1864 | int work_tbd; | |
1865 | ||
1866 | if (mp->work_link) { | |
1867 | mp->work_link = 0; | |
1868 | handle_link_event(mp); | |
1869 | continue; | |
1870 | } | |
1da177e4 | 1871 | |
1fa38c58 LB |
1872 | queue_mask = mp->work_tx | mp->work_tx_end | |
1873 | mp->work_rx | mp->work_rx_refill; | |
1874 | if (!queue_mask) { | |
1875 | if (mv643xx_eth_collect_events(mp)) | |
1876 | continue; | |
1877 | break; | |
1878 | } | |
1da177e4 | 1879 | |
1fa38c58 LB |
1880 | queue = fls(queue_mask) - 1; |
1881 | queue_mask = 1 << queue; | |
1882 | ||
1883 | work_tbd = budget - work_done; | |
1884 | if (work_tbd > 16) | |
1885 | work_tbd = 16; | |
1886 | ||
1887 | if (mp->work_tx_end & queue_mask) { | |
1888 | txq_kick(mp->txq + queue); | |
1889 | } else if (mp->work_tx & queue_mask) { | |
1890 | work_done += txq_reclaim(mp->txq + queue, work_tbd, 0); | |
1891 | txq_maybe_wake(mp->txq + queue); | |
1892 | } else if (mp->work_rx & queue_mask) { | |
1893 | work_done += rxq_process(mp->rxq + queue, work_tbd); | |
1894 | } else if (mp->work_rx_refill & queue_mask) { | |
1895 | work_done += rxq_refill(mp->rxq + queue, work_tbd); | |
1896 | } else { | |
1897 | BUG(); | |
1898 | } | |
84dd619e | 1899 | } |
fc32b0e2 | 1900 | |
1fa38c58 LB |
1901 | if (work_done < budget) { |
1902 | if (mp->work_rx_oom) | |
1903 | mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); | |
1904 | napi_complete(napi); | |
1905 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); | |
226bb6b7 | 1906 | } |
3d6b35bc | 1907 | |
1fa38c58 LB |
1908 | return work_done; |
1909 | } | |
8fa89bf5 | 1910 | |
1fa38c58 LB |
1911 | static inline void oom_timer_wrapper(unsigned long data) |
1912 | { | |
1913 | struct mv643xx_eth_private *mp = (void *)data; | |
1da177e4 | 1914 | |
1fa38c58 | 1915 | napi_schedule(&mp->napi); |
1da177e4 LT |
1916 | } |
1917 | ||
e5371493 | 1918 | static void phy_reset(struct mv643xx_eth_private *mp) |
1da177e4 | 1919 | { |
45c5d3bc LB |
1920 | int data; |
1921 | ||
ed94493f | 1922 | data = phy_read(mp->phy, MII_BMCR); |
45c5d3bc LB |
1923 | if (data < 0) |
1924 | return; | |
1da177e4 | 1925 | |
7f106c1d | 1926 | data |= BMCR_RESET; |
ed94493f | 1927 | if (phy_write(mp->phy, MII_BMCR, data) < 0) |
45c5d3bc | 1928 | return; |
1da177e4 | 1929 | |
c9df406f | 1930 | do { |
ed94493f | 1931 | data = phy_read(mp->phy, MII_BMCR); |
45c5d3bc | 1932 | } while (data >= 0 && data & BMCR_RESET); |
1da177e4 LT |
1933 | } |
1934 | ||
fc32b0e2 | 1935 | static void port_start(struct mv643xx_eth_private *mp) |
1da177e4 | 1936 | { |
d0412d96 | 1937 | u32 pscr; |
8a578111 | 1938 | int i; |
1da177e4 | 1939 | |
bedfe324 LB |
1940 | /* |
1941 | * Perform PHY reset, if there is a PHY. | |
1942 | */ | |
ed94493f | 1943 | if (mp->phy != NULL) { |
bedfe324 LB |
1944 | struct ethtool_cmd cmd; |
1945 | ||
1946 | mv643xx_eth_get_settings(mp->dev, &cmd); | |
1947 | phy_reset(mp); | |
1948 | mv643xx_eth_set_settings(mp->dev, &cmd); | |
1949 | } | |
1da177e4 | 1950 | |
81600eea LB |
1951 | /* |
1952 | * Configure basic link parameters. | |
1953 | */ | |
1954 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); | |
1955 | ||
1956 | pscr |= SERIAL_PORT_ENABLE; | |
1957 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); | |
1958 | ||
1959 | pscr |= DO_NOT_FORCE_LINK_FAIL; | |
ed94493f | 1960 | if (mp->phy == NULL) |
81600eea LB |
1961 | pscr |= FORCE_LINK_PASS; |
1962 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); | |
1963 | ||
1964 | wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); | |
1965 | ||
13d64285 LB |
1966 | /* |
1967 | * Configure TX path and queues. | |
1968 | */ | |
89df5fdc | 1969 | tx_set_rate(mp, 1000000000, 16777216); |
f7981c1c | 1970 | for (i = 0; i < mp->txq_count; i++) { |
3d6b35bc | 1971 | struct tx_queue *txq = mp->txq + i; |
13d64285 | 1972 | |
6b368f68 | 1973 | txq_reset_hw_ptr(txq); |
89df5fdc LB |
1974 | txq_set_rate(txq, 1000000000, 16777216); |
1975 | txq_set_fixed_prio_mode(txq); | |
13d64285 LB |
1976 | } |
1977 | ||
fc32b0e2 LB |
1978 | /* |
1979 | * Add configured unicast address to address filter table. | |
1980 | */ | |
1981 | uc_addr_set(mp, mp->dev->dev_addr); | |
1da177e4 | 1982 | |
d9a073ea LB |
1983 | /* |
1984 | * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast | |
170e7108 LB |
1985 | * frames to RX queue #0, and include the pseudo-header when |
1986 | * calculating receive checksums. | |
d9a073ea | 1987 | */ |
170e7108 | 1988 | wrl(mp, PORT_CONFIG(mp->port_num), 0x02000000); |
01999873 | 1989 | |
376489a2 LB |
1990 | /* |
1991 | * Treat BPDUs as normal multicasts, and disable partition mode. | |
1992 | */ | |
8a578111 | 1993 | wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); |
01999873 | 1994 | |
8a578111 | 1995 | /* |
64da80a2 | 1996 | * Enable the receive queues. |
8a578111 | 1997 | */ |
f7981c1c | 1998 | for (i = 0; i < mp->rxq_count; i++) { |
64da80a2 LB |
1999 | struct rx_queue *rxq = mp->rxq + i; |
2000 | int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); | |
8a578111 | 2001 | u32 addr; |
1da177e4 | 2002 | |
8a578111 LB |
2003 | addr = (u32)rxq->rx_desc_dma; |
2004 | addr += rxq->rx_curr_desc * sizeof(struct rx_desc); | |
2005 | wrl(mp, off, addr); | |
1da177e4 | 2006 | |
8a578111 LB |
2007 | rxq_enable(rxq); |
2008 | } | |
1da177e4 LT |
2009 | } |
2010 | ||
ffd86bbe | 2011 | static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
1da177e4 | 2012 | { |
c9df406f | 2013 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
773fc3ee | 2014 | u32 val; |
1da177e4 | 2015 | |
773fc3ee LB |
2016 | val = rdl(mp, SDMA_CONFIG(mp->port_num)); |
2017 | if (mp->shared->extended_rx_coal_limit) { | |
2018 | if (coal > 0xffff) | |
2019 | coal = 0xffff; | |
2020 | val &= ~0x023fff80; | |
2021 | val |= (coal & 0x8000) << 10; | |
2022 | val |= (coal & 0x7fff) << 7; | |
2023 | } else { | |
2024 | if (coal > 0x3fff) | |
2025 | coal = 0x3fff; | |
2026 | val &= ~0x003fff00; | |
2027 | val |= (coal & 0x3fff) << 8; | |
2028 | } | |
2029 | wrl(mp, SDMA_CONFIG(mp->port_num), val); | |
1da177e4 LT |
2030 | } |
2031 | ||
ffd86bbe | 2032 | static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay) |
1da177e4 | 2033 | { |
c9df406f | 2034 | unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; |
1da177e4 | 2035 | |
fc32b0e2 LB |
2036 | if (coal > 0x3fff) |
2037 | coal = 0x3fff; | |
2038 | wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); | |
16e03018 DF |
2039 | } |
2040 | ||
2bcb4b0f LB |
2041 | static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp) |
2042 | { | |
2043 | int skb_size; | |
2044 | ||
2045 | /* | |
2046 | * Reserve 2+14 bytes for an ethernet header (the hardware | |
2047 | * automatically prepends 2 bytes of dummy data to each | |
2048 | * received packet), 16 bytes for up to four VLAN tags, and | |
2049 | * 4 bytes for the trailing FCS -- 36 bytes total. | |
2050 | */ | |
2051 | skb_size = mp->dev->mtu + 36; | |
2052 | ||
2053 | /* | |
2054 | * Make sure that the skb size is a multiple of 8 bytes, as | |
2055 | * the lower three bits of the receive descriptor's buffer | |
2056 | * size field are ignored by the hardware. | |
2057 | */ | |
2058 | mp->skb_size = (skb_size + 7) & ~7; | |
2059 | } | |
2060 | ||
c9df406f | 2061 | static int mv643xx_eth_open(struct net_device *dev) |
16e03018 | 2062 | { |
e5371493 | 2063 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
c9df406f | 2064 | int err; |
64da80a2 | 2065 | int i; |
16e03018 | 2066 | |
fc32b0e2 LB |
2067 | wrl(mp, INT_CAUSE(mp->port_num), 0); |
2068 | wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); | |
2069 | rdl(mp, INT_CAUSE_EXT(mp->port_num)); | |
c9df406f | 2070 | |
fc32b0e2 | 2071 | err = request_irq(dev->irq, mv643xx_eth_irq, |
2a1867a7 | 2072 | IRQF_SHARED, dev->name, dev); |
c9df406f | 2073 | if (err) { |
fc32b0e2 | 2074 | dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); |
c9df406f | 2075 | return -EAGAIN; |
16e03018 DF |
2076 | } |
2077 | ||
fc32b0e2 | 2078 | init_mac_tables(mp); |
16e03018 | 2079 | |
2bcb4b0f LB |
2080 | mv643xx_eth_recalc_skb_size(mp); |
2081 | ||
2257e05c LB |
2082 | napi_enable(&mp->napi); |
2083 | ||
2bcb4b0f LB |
2084 | skb_queue_head_init(&mp->rx_recycle); |
2085 | ||
f7981c1c | 2086 | for (i = 0; i < mp->rxq_count; i++) { |
64da80a2 LB |
2087 | err = rxq_init(mp, i); |
2088 | if (err) { | |
2089 | while (--i >= 0) | |
f7981c1c | 2090 | rxq_deinit(mp->rxq + i); |
64da80a2 LB |
2091 | goto out; |
2092 | } | |
2093 | ||
1fa38c58 | 2094 | rxq_refill(mp->rxq + i, INT_MAX); |
2257e05c LB |
2095 | } |
2096 | ||
1fa38c58 | 2097 | if (mp->work_rx_oom) { |
2257e05c LB |
2098 | mp->rx_oom.expires = jiffies + (HZ / 10); |
2099 | add_timer(&mp->rx_oom); | |
64da80a2 | 2100 | } |
8a578111 | 2101 | |
f7981c1c | 2102 | for (i = 0; i < mp->txq_count; i++) { |
3d6b35bc LB |
2103 | err = txq_init(mp, i); |
2104 | if (err) { | |
2105 | while (--i >= 0) | |
f7981c1c | 2106 | txq_deinit(mp->txq + i); |
3d6b35bc LB |
2107 | goto out_free; |
2108 | } | |
2109 | } | |
16e03018 | 2110 | |
2f7eb47a | 2111 | netif_carrier_off(dev); |
2f7eb47a | 2112 | |
fc32b0e2 | 2113 | port_start(mp); |
16e03018 | 2114 | |
ffd86bbe LB |
2115 | set_rx_coal(mp, 0); |
2116 | set_tx_coal(mp, 0); | |
16e03018 | 2117 | |
befefe21 | 2118 | wrl(mp, INT_MASK_EXT(mp->port_num), INT_EXT_LINK_PHY | INT_EXT_TX); |
226bb6b7 | 2119 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
16e03018 | 2120 | |
c9df406f LB |
2121 | return 0; |
2122 | ||
13d64285 | 2123 | |
fc32b0e2 | 2124 | out_free: |
f7981c1c LB |
2125 | for (i = 0; i < mp->rxq_count; i++) |
2126 | rxq_deinit(mp->rxq + i); | |
fc32b0e2 | 2127 | out: |
c9df406f LB |
2128 | free_irq(dev->irq, dev); |
2129 | ||
2130 | return err; | |
16e03018 DF |
2131 | } |
2132 | ||
e5371493 | 2133 | static void port_reset(struct mv643xx_eth_private *mp) |
1da177e4 | 2134 | { |
fc32b0e2 | 2135 | unsigned int data; |
64da80a2 | 2136 | int i; |
1da177e4 | 2137 | |
f7981c1c LB |
2138 | for (i = 0; i < mp->rxq_count; i++) |
2139 | rxq_disable(mp->rxq + i); | |
2140 | for (i = 0; i < mp->txq_count; i++) | |
2141 | txq_disable(mp->txq + i); | |
ae9ae064 LB |
2142 | |
2143 | while (1) { | |
2144 | u32 ps = rdl(mp, PORT_STATUS(mp->port_num)); | |
2145 | ||
2146 | if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) | |
2147 | break; | |
13d64285 | 2148 | udelay(10); |
ae9ae064 | 2149 | } |
1da177e4 | 2150 | |
c9df406f | 2151 | /* Reset the Enable bit in the Configuration Register */ |
fc32b0e2 LB |
2152 | data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); |
2153 | data &= ~(SERIAL_PORT_ENABLE | | |
2154 | DO_NOT_FORCE_LINK_FAIL | | |
2155 | FORCE_LINK_PASS); | |
2156 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); | |
1da177e4 LT |
2157 | } |
2158 | ||
c9df406f | 2159 | static int mv643xx_eth_stop(struct net_device *dev) |
1da177e4 | 2160 | { |
e5371493 | 2161 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
64da80a2 | 2162 | int i; |
1da177e4 | 2163 | |
fc32b0e2 LB |
2164 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
2165 | rdl(mp, INT_MASK(mp->port_num)); | |
1da177e4 | 2166 | |
4ff3495a LB |
2167 | del_timer_sync(&mp->mib_counters_timer); |
2168 | ||
c9df406f | 2169 | napi_disable(&mp->napi); |
78fff83b | 2170 | |
2257e05c LB |
2171 | del_timer_sync(&mp->rx_oom); |
2172 | ||
c9df406f | 2173 | netif_carrier_off(dev); |
1da177e4 | 2174 | |
fc32b0e2 LB |
2175 | free_irq(dev->irq, dev); |
2176 | ||
cc9754b3 | 2177 | port_reset(mp); |
8fd89211 | 2178 | mv643xx_eth_get_stats(dev); |
fc32b0e2 | 2179 | mib_counters_update(mp); |
1da177e4 | 2180 | |
2bcb4b0f LB |
2181 | skb_queue_purge(&mp->rx_recycle); |
2182 | ||
f7981c1c LB |
2183 | for (i = 0; i < mp->rxq_count; i++) |
2184 | rxq_deinit(mp->rxq + i); | |
2185 | for (i = 0; i < mp->txq_count; i++) | |
2186 | txq_deinit(mp->txq + i); | |
1da177e4 | 2187 | |
c9df406f | 2188 | return 0; |
1da177e4 LT |
2189 | } |
2190 | ||
fc32b0e2 | 2191 | static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1da177e4 | 2192 | { |
e5371493 | 2193 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1da177e4 | 2194 | |
ed94493f LB |
2195 | if (mp->phy != NULL) |
2196 | return phy_mii_ioctl(mp->phy, if_mii(ifr), cmd); | |
bedfe324 LB |
2197 | |
2198 | return -EOPNOTSUPP; | |
1da177e4 LT |
2199 | } |
2200 | ||
c9df406f | 2201 | static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 2202 | { |
89df5fdc LB |
2203 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
2204 | ||
fc32b0e2 | 2205 | if (new_mtu < 64 || new_mtu > 9500) |
c9df406f | 2206 | return -EINVAL; |
1da177e4 | 2207 | |
c9df406f | 2208 | dev->mtu = new_mtu; |
2bcb4b0f | 2209 | mv643xx_eth_recalc_skb_size(mp); |
89df5fdc LB |
2210 | tx_set_rate(mp, 1000000000, 16777216); |
2211 | ||
c9df406f LB |
2212 | if (!netif_running(dev)) |
2213 | return 0; | |
1da177e4 | 2214 | |
c9df406f LB |
2215 | /* |
2216 | * Stop and then re-open the interface. This will allocate RX | |
2217 | * skbs of the new MTU. | |
2218 | * There is a possible danger that the open will not succeed, | |
fc32b0e2 | 2219 | * due to memory being full. |
c9df406f LB |
2220 | */ |
2221 | mv643xx_eth_stop(dev); | |
2222 | if (mv643xx_eth_open(dev)) { | |
fc32b0e2 LB |
2223 | dev_printk(KERN_ERR, &dev->dev, |
2224 | "fatal error on re-opening device after " | |
2225 | "MTU change\n"); | |
c9df406f LB |
2226 | } |
2227 | ||
2228 | return 0; | |
1da177e4 LT |
2229 | } |
2230 | ||
fc32b0e2 | 2231 | static void tx_timeout_task(struct work_struct *ugly) |
1da177e4 | 2232 | { |
fc32b0e2 | 2233 | struct mv643xx_eth_private *mp; |
1da177e4 | 2234 | |
fc32b0e2 LB |
2235 | mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); |
2236 | if (netif_running(mp->dev)) { | |
e5ef1de1 | 2237 | netif_tx_stop_all_queues(mp->dev); |
fc32b0e2 LB |
2238 | port_reset(mp); |
2239 | port_start(mp); | |
e5ef1de1 | 2240 | netif_tx_wake_all_queues(mp->dev); |
fc32b0e2 | 2241 | } |
c9df406f LB |
2242 | } |
2243 | ||
c9df406f | 2244 | static void mv643xx_eth_tx_timeout(struct net_device *dev) |
1da177e4 | 2245 | { |
e5371493 | 2246 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
1da177e4 | 2247 | |
fc32b0e2 | 2248 | dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); |
d0412d96 | 2249 | |
c9df406f | 2250 | schedule_work(&mp->tx_timeout_task); |
1da177e4 LT |
2251 | } |
2252 | ||
c9df406f | 2253 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fc32b0e2 | 2254 | static void mv643xx_eth_netpoll(struct net_device *dev) |
9f8dd319 | 2255 | { |
fc32b0e2 | 2256 | struct mv643xx_eth_private *mp = netdev_priv(dev); |
c9df406f | 2257 | |
fc32b0e2 LB |
2258 | wrl(mp, INT_MASK(mp->port_num), 0x00000000); |
2259 | rdl(mp, INT_MASK(mp->port_num)); | |
c9df406f | 2260 | |
fc32b0e2 | 2261 | mv643xx_eth_irq(dev->irq, dev); |
c9df406f | 2262 | |
f2ca60f2 | 2263 | wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); |
9f8dd319 | 2264 | } |
c9df406f | 2265 | #endif |
9f8dd319 | 2266 | |
9f8dd319 | 2267 | |
c9df406f | 2268 | /* platform glue ************************************************************/ |
e5371493 LB |
2269 | static void |
2270 | mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, | |
2271 | struct mbus_dram_target_info *dram) | |
c9df406f | 2272 | { |
cc9754b3 | 2273 | void __iomem *base = msp->base; |
c9df406f LB |
2274 | u32 win_enable; |
2275 | u32 win_protect; | |
2276 | int i; | |
9f8dd319 | 2277 | |
c9df406f LB |
2278 | for (i = 0; i < 6; i++) { |
2279 | writel(0, base + WINDOW_BASE(i)); | |
2280 | writel(0, base + WINDOW_SIZE(i)); | |
2281 | if (i < 4) | |
2282 | writel(0, base + WINDOW_REMAP_HIGH(i)); | |
9f8dd319 DF |
2283 | } |
2284 | ||
c9df406f LB |
2285 | win_enable = 0x3f; |
2286 | win_protect = 0; | |
2287 | ||
2288 | for (i = 0; i < dram->num_cs; i++) { | |
2289 | struct mbus_dram_window *cs = dram->cs + i; | |
2290 | ||
2291 | writel((cs->base & 0xffff0000) | | |
2292 | (cs->mbus_attr << 8) | | |
2293 | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); | |
2294 | writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); | |
2295 | ||
2296 | win_enable &= ~(1 << i); | |
2297 | win_protect |= 3 << (2 * i); | |
2298 | } | |
2299 | ||
2300 | writel(win_enable, base + WINDOW_BAR_ENABLE); | |
2301 | msp->win_protect = win_protect; | |
9f8dd319 DF |
2302 | } |
2303 | ||
773fc3ee LB |
2304 | static void infer_hw_params(struct mv643xx_eth_shared_private *msp) |
2305 | { | |
2306 | /* | |
2307 | * Check whether we have a 14-bit coal limit field in bits | |
2308 | * [21:8], or a 16-bit coal limit in bits [25,21:7] of the | |
2309 | * SDMA config register. | |
2310 | */ | |
2311 | writel(0x02000000, msp->base + SDMA_CONFIG(0)); | |
2312 | if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) | |
2313 | msp->extended_rx_coal_limit = 1; | |
2314 | else | |
2315 | msp->extended_rx_coal_limit = 0; | |
1e881592 LB |
2316 | |
2317 | /* | |
457b1d5a LB |
2318 | * Check whether the MAC supports TX rate control, and if |
2319 | * yes, whether its associated registers are in the old or | |
2320 | * the new place. | |
1e881592 LB |
2321 | */ |
2322 | writel(1, msp->base + TX_BW_MTU_MOVED(0)); | |
457b1d5a LB |
2323 | if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) { |
2324 | msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT; | |
2325 | } else { | |
2326 | writel(7, msp->base + TX_BW_RATE(0)); | |
2327 | if (readl(msp->base + TX_BW_RATE(0)) & 7) | |
2328 | msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT; | |
2329 | else | |
2330 | msp->tx_bw_control = TX_BW_CONTROL_ABSENT; | |
2331 | } | |
773fc3ee LB |
2332 | } |
2333 | ||
c9df406f | 2334 | static int mv643xx_eth_shared_probe(struct platform_device *pdev) |
9f8dd319 | 2335 | { |
e5371493 | 2336 | static int mv643xx_eth_version_printed = 0; |
c9df406f | 2337 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
e5371493 | 2338 | struct mv643xx_eth_shared_private *msp; |
c9df406f LB |
2339 | struct resource *res; |
2340 | int ret; | |
9f8dd319 | 2341 | |
e5371493 | 2342 | if (!mv643xx_eth_version_printed++) |
7dde154d LB |
2343 | printk(KERN_NOTICE "MV-643xx 10/100/1000 ethernet " |
2344 | "driver version %s\n", mv643xx_eth_driver_version); | |
9f8dd319 | 2345 | |
c9df406f LB |
2346 | ret = -EINVAL; |
2347 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
2348 | if (res == NULL) | |
2349 | goto out; | |
9f8dd319 | 2350 | |
c9df406f LB |
2351 | ret = -ENOMEM; |
2352 | msp = kmalloc(sizeof(*msp), GFP_KERNEL); | |
2353 | if (msp == NULL) | |
2354 | goto out; | |
2355 | memset(msp, 0, sizeof(*msp)); | |
2356 | ||
cc9754b3 LB |
2357 | msp->base = ioremap(res->start, res->end - res->start + 1); |
2358 | if (msp->base == NULL) | |
c9df406f LB |
2359 | goto out_free; |
2360 | ||
ed94493f LB |
2361 | /* |
2362 | * Set up and register SMI bus. | |
2363 | */ | |
2364 | if (pd == NULL || pd->shared_smi == NULL) { | |
298cf9be LB |
2365 | msp->smi_bus = mdiobus_alloc(); |
2366 | if (msp->smi_bus == NULL) | |
ed94493f | 2367 | goto out_unmap; |
298cf9be LB |
2368 | |
2369 | msp->smi_bus->priv = msp; | |
2370 | msp->smi_bus->name = "mv643xx_eth smi"; | |
2371 | msp->smi_bus->read = smi_bus_read; | |
2372 | msp->smi_bus->write = smi_bus_write, | |
2373 | snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id); | |
2374 | msp->smi_bus->parent = &pdev->dev; | |
2375 | msp->smi_bus->phy_mask = 0xffffffff; | |
2376 | if (mdiobus_register(msp->smi_bus) < 0) | |
2377 | goto out_free_mii_bus; | |
ed94493f LB |
2378 | msp->smi = msp; |
2379 | } else { | |
fc0eb9f2 | 2380 | msp->smi = platform_get_drvdata(pd->shared_smi); |
ed94493f | 2381 | } |
c9df406f | 2382 | |
45c5d3bc LB |
2383 | msp->err_interrupt = NO_IRQ; |
2384 | init_waitqueue_head(&msp->smi_busy_wait); | |
2385 | ||
2386 | /* | |
2387 | * Check whether the error interrupt is hooked up. | |
2388 | */ | |
2389 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
2390 | if (res != NULL) { | |
2391 | int err; | |
2392 | ||
2393 | err = request_irq(res->start, mv643xx_eth_err_irq, | |
2394 | IRQF_SHARED, "mv643xx_eth", msp); | |
2395 | if (!err) { | |
2396 | writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK); | |
2397 | msp->err_interrupt = res->start; | |
2398 | } | |
2399 | } | |
2400 | ||
c9df406f LB |
2401 | /* |
2402 | * (Re-)program MBUS remapping windows if we are asked to. | |
2403 | */ | |
2404 | if (pd != NULL && pd->dram != NULL) | |
2405 | mv643xx_eth_conf_mbus_windows(msp, pd->dram); | |
2406 | ||
fc32b0e2 LB |
2407 | /* |
2408 | * Detect hardware parameters. | |
2409 | */ | |
2410 | msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; | |
773fc3ee | 2411 | infer_hw_params(msp); |
fc32b0e2 LB |
2412 | |
2413 | platform_set_drvdata(pdev, msp); | |
2414 | ||
c9df406f LB |
2415 | return 0; |
2416 | ||
298cf9be LB |
2417 | out_free_mii_bus: |
2418 | mdiobus_free(msp->smi_bus); | |
ed94493f LB |
2419 | out_unmap: |
2420 | iounmap(msp->base); | |
c9df406f LB |
2421 | out_free: |
2422 | kfree(msp); | |
2423 | out: | |
2424 | return ret; | |
2425 | } | |
2426 | ||
2427 | static int mv643xx_eth_shared_remove(struct platform_device *pdev) | |
2428 | { | |
e5371493 | 2429 | struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); |
ed94493f | 2430 | struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; |
c9df406f | 2431 | |
298cf9be LB |
2432 | if (pd == NULL || pd->shared_smi == NULL) { |
2433 | mdiobus_free(msp->smi_bus); | |
2434 | mdiobus_unregister(msp->smi_bus); | |
2435 | } | |
45c5d3bc LB |
2436 | if (msp->err_interrupt != NO_IRQ) |
2437 | free_irq(msp->err_interrupt, msp); | |
cc9754b3 | 2438 | iounmap(msp->base); |
c9df406f LB |
2439 | kfree(msp); |
2440 | ||
2441 | return 0; | |
9f8dd319 DF |
2442 | } |
2443 | ||
c9df406f | 2444 | static struct platform_driver mv643xx_eth_shared_driver = { |
fc32b0e2 LB |
2445 | .probe = mv643xx_eth_shared_probe, |
2446 | .remove = mv643xx_eth_shared_remove, | |
c9df406f | 2447 | .driver = { |
fc32b0e2 | 2448 | .name = MV643XX_ETH_SHARED_NAME, |
c9df406f LB |
2449 | .owner = THIS_MODULE, |
2450 | }, | |
2451 | }; | |
2452 | ||
e5371493 | 2453 | static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr) |
1da177e4 | 2454 | { |
c9df406f | 2455 | int addr_shift = 5 * mp->port_num; |
fc32b0e2 | 2456 | u32 data; |
1da177e4 | 2457 | |
fc32b0e2 LB |
2458 | data = rdl(mp, PHY_ADDR); |
2459 | data &= ~(0x1f << addr_shift); | |
2460 | data |= (phy_addr & 0x1f) << addr_shift; | |
2461 | wrl(mp, PHY_ADDR, data); | |
1da177e4 LT |
2462 | } |
2463 | ||
e5371493 | 2464 | static int phy_addr_get(struct mv643xx_eth_private *mp) |
1da177e4 | 2465 | { |
fc32b0e2 LB |
2466 | unsigned int data; |
2467 | ||
2468 | data = rdl(mp, PHY_ADDR); | |
2469 | ||
2470 | return (data >> (5 * mp->port_num)) & 0x1f; | |
2471 | } | |
2472 | ||
2473 | static void set_params(struct mv643xx_eth_private *mp, | |
2474 | struct mv643xx_eth_platform_data *pd) | |
2475 | { | |
2476 | struct net_device *dev = mp->dev; | |
2477 | ||
2478 | if (is_valid_ether_addr(pd->mac_addr)) | |
2479 | memcpy(dev->dev_addr, pd->mac_addr, 6); | |
2480 | else | |
2481 | uc_addr_get(mp, dev->dev_addr); | |
2482 | ||
fc32b0e2 LB |
2483 | mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; |
2484 | if (pd->rx_queue_size) | |
2485 | mp->default_rx_ring_size = pd->rx_queue_size; | |
2486 | mp->rx_desc_sram_addr = pd->rx_sram_addr; | |
2487 | mp->rx_desc_sram_size = pd->rx_sram_size; | |
1da177e4 | 2488 | |
f7981c1c | 2489 | mp->rxq_count = pd->rx_queue_count ? : 1; |
64da80a2 | 2490 | |
fc32b0e2 LB |
2491 | mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; |
2492 | if (pd->tx_queue_size) | |
2493 | mp->default_tx_ring_size = pd->tx_queue_size; | |
2494 | mp->tx_desc_sram_addr = pd->tx_sram_addr; | |
2495 | mp->tx_desc_sram_size = pd->tx_sram_size; | |
3d6b35bc | 2496 | |
f7981c1c | 2497 | mp->txq_count = pd->tx_queue_count ? : 1; |
1da177e4 LT |
2498 | } |
2499 | ||
ed94493f LB |
2500 | static struct phy_device *phy_scan(struct mv643xx_eth_private *mp, |
2501 | int phy_addr) | |
1da177e4 | 2502 | { |
298cf9be | 2503 | struct mii_bus *bus = mp->shared->smi->smi_bus; |
ed94493f LB |
2504 | struct phy_device *phydev; |
2505 | int start; | |
2506 | int num; | |
2507 | int i; | |
45c5d3bc | 2508 | |
ed94493f LB |
2509 | if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) { |
2510 | start = phy_addr_get(mp) & 0x1f; | |
2511 | num = 32; | |
2512 | } else { | |
2513 | start = phy_addr & 0x1f; | |
2514 | num = 1; | |
2515 | } | |
45c5d3bc | 2516 | |
ed94493f LB |
2517 | phydev = NULL; |
2518 | for (i = 0; i < num; i++) { | |
2519 | int addr = (start + i) & 0x1f; | |
fc32b0e2 | 2520 | |
ed94493f LB |
2521 | if (bus->phy_map[addr] == NULL) |
2522 | mdiobus_scan(bus, addr); | |
1da177e4 | 2523 | |
ed94493f LB |
2524 | if (phydev == NULL) { |
2525 | phydev = bus->phy_map[addr]; | |
2526 | if (phydev != NULL) | |
2527 | phy_addr_set(mp, addr); | |
2528 | } | |
2529 | } | |
1da177e4 | 2530 | |
ed94493f | 2531 | return phydev; |
1da177e4 LT |
2532 | } |
2533 | ||
ed94493f | 2534 | static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex) |
c28a4f89 | 2535 | { |
ed94493f | 2536 | struct phy_device *phy = mp->phy; |
c28a4f89 | 2537 | |
fc32b0e2 LB |
2538 | phy_reset(mp); |
2539 | ||
ed94493f LB |
2540 | phy_attach(mp->dev, phy->dev.bus_id, 0, PHY_INTERFACE_MODE_GMII); |
2541 | ||
2542 | if (speed == 0) { | |
2543 | phy->autoneg = AUTONEG_ENABLE; | |
2544 | phy->speed = 0; | |
2545 | phy->duplex = 0; | |
2546 | phy->advertising = phy->supported | ADVERTISED_Autoneg; | |
c9df406f | 2547 | } else { |
ed94493f LB |
2548 | phy->autoneg = AUTONEG_DISABLE; |
2549 | phy->advertising = 0; | |
2550 | phy->speed = speed; | |
2551 | phy->duplex = duplex; | |
c9df406f | 2552 | } |
ed94493f | 2553 | phy_start_aneg(phy); |
c28a4f89 JC |
2554 | } |
2555 | ||
81600eea LB |
2556 | static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) |
2557 | { | |
2558 | u32 pscr; | |
2559 | ||
2560 | pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); | |
2561 | if (pscr & SERIAL_PORT_ENABLE) { | |
2562 | pscr &= ~SERIAL_PORT_ENABLE; | |
2563 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); | |
2564 | } | |
2565 | ||
2566 | pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; | |
ed94493f | 2567 | if (mp->phy == NULL) { |
81600eea LB |
2568 | pscr |= DISABLE_AUTO_NEG_SPEED_GMII; |
2569 | if (speed == SPEED_1000) | |
2570 | pscr |= SET_GMII_SPEED_TO_1000; | |
2571 | else if (speed == SPEED_100) | |
2572 | pscr |= SET_MII_SPEED_TO_100; | |
2573 | ||
2574 | pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; | |
2575 | ||
2576 | pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; | |
2577 | if (duplex == DUPLEX_FULL) | |
2578 | pscr |= SET_FULL_DUPLEX_MODE; | |
2579 | } | |
2580 | ||
2581 | wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); | |
2582 | } | |
2583 | ||
c9df406f | 2584 | static int mv643xx_eth_probe(struct platform_device *pdev) |
1da177e4 | 2585 | { |
c9df406f | 2586 | struct mv643xx_eth_platform_data *pd; |
e5371493 | 2587 | struct mv643xx_eth_private *mp; |
c9df406f | 2588 | struct net_device *dev; |
c9df406f | 2589 | struct resource *res; |
fc32b0e2 | 2590 | int err; |
1da177e4 | 2591 | |
c9df406f LB |
2592 | pd = pdev->dev.platform_data; |
2593 | if (pd == NULL) { | |
fc32b0e2 LB |
2594 | dev_printk(KERN_ERR, &pdev->dev, |
2595 | "no mv643xx_eth_platform_data\n"); | |
c9df406f LB |
2596 | return -ENODEV; |
2597 | } | |
1da177e4 | 2598 | |
c9df406f | 2599 | if (pd->shared == NULL) { |
fc32b0e2 LB |
2600 | dev_printk(KERN_ERR, &pdev->dev, |
2601 | "no mv643xx_eth_platform_data->shared\n"); | |
c9df406f LB |
2602 | return -ENODEV; |
2603 | } | |
8f518703 | 2604 | |
e5ef1de1 | 2605 | dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8); |
c9df406f LB |
2606 | if (!dev) |
2607 | return -ENOMEM; | |
1da177e4 | 2608 | |
c9df406f | 2609 | mp = netdev_priv(dev); |
fc32b0e2 LB |
2610 | platform_set_drvdata(pdev, mp); |
2611 | ||
2612 | mp->shared = platform_get_drvdata(pd->shared); | |
2613 | mp->port_num = pd->port_number; | |
2614 | ||
c9df406f | 2615 | mp->dev = dev; |
78fff83b | 2616 | |
fc32b0e2 | 2617 | set_params(mp, pd); |
e5ef1de1 | 2618 | dev->real_num_tx_queues = mp->txq_count; |
fc32b0e2 | 2619 | |
ed94493f LB |
2620 | if (pd->phy_addr != MV643XX_ETH_PHY_NONE) |
2621 | mp->phy = phy_scan(mp, pd->phy_addr); | |
bedfe324 | 2622 | |
ed94493f LB |
2623 | if (mp->phy != NULL) { |
2624 | phy_init(mp, pd->speed, pd->duplex); | |
bedfe324 LB |
2625 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); |
2626 | } else { | |
2627 | SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); | |
2628 | } | |
ed94493f | 2629 | |
81600eea | 2630 | init_pscr(mp, pd->speed, pd->duplex); |
fc32b0e2 | 2631 | |
4ff3495a LB |
2632 | |
2633 | mib_counters_clear(mp); | |
2634 | ||
2635 | init_timer(&mp->mib_counters_timer); | |
2636 | mp->mib_counters_timer.data = (unsigned long)mp; | |
2637 | mp->mib_counters_timer.function = mib_counters_timer_wrapper; | |
2638 | mp->mib_counters_timer.expires = jiffies + 30 * HZ; | |
2639 | add_timer(&mp->mib_counters_timer); | |
2640 | ||
2641 | spin_lock_init(&mp->mib_counters_lock); | |
2642 | ||
2643 | INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); | |
2644 | ||
2257e05c LB |
2645 | netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128); |
2646 | ||
2647 | init_timer(&mp->rx_oom); | |
2648 | mp->rx_oom.data = (unsigned long)mp; | |
2649 | mp->rx_oom.function = oom_timer_wrapper; | |
2650 | ||
fc32b0e2 | 2651 | |
c9df406f LB |
2652 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
2653 | BUG_ON(!res); | |
2654 | dev->irq = res->start; | |
1da177e4 | 2655 | |
8fd89211 | 2656 | dev->get_stats = mv643xx_eth_get_stats; |
fc32b0e2 | 2657 | dev->hard_start_xmit = mv643xx_eth_xmit; |
c9df406f LB |
2658 | dev->open = mv643xx_eth_open; |
2659 | dev->stop = mv643xx_eth_stop; | |
c9df406f | 2660 | dev->set_multicast_list = mv643xx_eth_set_rx_mode; |
fc32b0e2 LB |
2661 | dev->set_mac_address = mv643xx_eth_set_mac_address; |
2662 | dev->do_ioctl = mv643xx_eth_ioctl; | |
2663 | dev->change_mtu = mv643xx_eth_change_mtu; | |
c9df406f | 2664 | dev->tx_timeout = mv643xx_eth_tx_timeout; |
c9df406f | 2665 | #ifdef CONFIG_NET_POLL_CONTROLLER |
e5371493 | 2666 | dev->poll_controller = mv643xx_eth_netpoll; |
c9df406f | 2667 | #endif |
c9df406f LB |
2668 | dev->watchdog_timeo = 2 * HZ; |
2669 | dev->base_addr = 0; | |
1da177e4 | 2670 | |
c9df406f | 2671 | dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; |
e32b6617 | 2672 | dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM; |
1da177e4 | 2673 | |
fc32b0e2 | 2674 | SET_NETDEV_DEV(dev, &pdev->dev); |
8f518703 | 2675 | |
c9df406f | 2676 | if (mp->shared->win_protect) |
fc32b0e2 | 2677 | wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); |
1da177e4 | 2678 | |
c9df406f LB |
2679 | err = register_netdev(dev); |
2680 | if (err) | |
2681 | goto out; | |
1da177e4 | 2682 | |
e174961c JB |
2683 | dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %pM\n", |
2684 | mp->port_num, dev->dev_addr); | |
1da177e4 | 2685 | |
13d64285 | 2686 | if (mp->tx_desc_sram_size > 0) |
fc32b0e2 | 2687 | dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); |
1da177e4 | 2688 | |
c9df406f | 2689 | return 0; |
1da177e4 | 2690 | |
c9df406f LB |
2691 | out: |
2692 | free_netdev(dev); | |
1da177e4 | 2693 | |
c9df406f | 2694 | return err; |
1da177e4 LT |
2695 | } |
2696 | ||
c9df406f | 2697 | static int mv643xx_eth_remove(struct platform_device *pdev) |
1da177e4 | 2698 | { |
fc32b0e2 | 2699 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
1da177e4 | 2700 | |
fc32b0e2 | 2701 | unregister_netdev(mp->dev); |
ed94493f LB |
2702 | if (mp->phy != NULL) |
2703 | phy_detach(mp->phy); | |
c9df406f | 2704 | flush_scheduled_work(); |
fc32b0e2 | 2705 | free_netdev(mp->dev); |
c9df406f | 2706 | |
c9df406f | 2707 | platform_set_drvdata(pdev, NULL); |
fc32b0e2 | 2708 | |
c9df406f | 2709 | return 0; |
1da177e4 LT |
2710 | } |
2711 | ||
c9df406f | 2712 | static void mv643xx_eth_shutdown(struct platform_device *pdev) |
d0412d96 | 2713 | { |
fc32b0e2 | 2714 | struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); |
d0412d96 | 2715 | |
c9df406f | 2716 | /* Mask all interrupts on ethernet port */ |
fc32b0e2 LB |
2717 | wrl(mp, INT_MASK(mp->port_num), 0); |
2718 | rdl(mp, INT_MASK(mp->port_num)); | |
c9df406f | 2719 | |
fc32b0e2 LB |
2720 | if (netif_running(mp->dev)) |
2721 | port_reset(mp); | |
d0412d96 JC |
2722 | } |
2723 | ||
c9df406f | 2724 | static struct platform_driver mv643xx_eth_driver = { |
fc32b0e2 LB |
2725 | .probe = mv643xx_eth_probe, |
2726 | .remove = mv643xx_eth_remove, | |
2727 | .shutdown = mv643xx_eth_shutdown, | |
c9df406f | 2728 | .driver = { |
fc32b0e2 | 2729 | .name = MV643XX_ETH_NAME, |
c9df406f LB |
2730 | .owner = THIS_MODULE, |
2731 | }, | |
2732 | }; | |
2733 | ||
e5371493 | 2734 | static int __init mv643xx_eth_init_module(void) |
d0412d96 | 2735 | { |
c9df406f | 2736 | int rc; |
d0412d96 | 2737 | |
c9df406f LB |
2738 | rc = platform_driver_register(&mv643xx_eth_shared_driver); |
2739 | if (!rc) { | |
2740 | rc = platform_driver_register(&mv643xx_eth_driver); | |
2741 | if (rc) | |
2742 | platform_driver_unregister(&mv643xx_eth_shared_driver); | |
2743 | } | |
fc32b0e2 | 2744 | |
c9df406f | 2745 | return rc; |
d0412d96 | 2746 | } |
fc32b0e2 | 2747 | module_init(mv643xx_eth_init_module); |
d0412d96 | 2748 | |
e5371493 | 2749 | static void __exit mv643xx_eth_cleanup_module(void) |
d0412d96 | 2750 | { |
c9df406f LB |
2751 | platform_driver_unregister(&mv643xx_eth_driver); |
2752 | platform_driver_unregister(&mv643xx_eth_shared_driver); | |
d0412d96 | 2753 | } |
e5371493 | 2754 | module_exit(mv643xx_eth_cleanup_module); |
1da177e4 | 2755 | |
45675bc6 LB |
2756 | MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " |
2757 | "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); | |
c9df406f | 2758 | MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); |
fc32b0e2 | 2759 | MODULE_LICENSE("GPL"); |
c9df406f | 2760 | MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); |
fc32b0e2 | 2761 | MODULE_ALIAS("platform:" MV643XX_ETH_NAME); |