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1da177e4 LT |
1 | /* |
2 | * forcedeth: Ethernet driver for NVIDIA nForce media access controllers. | |
3 | * | |
4 | * Note: This driver is a cleanroom reimplementation based on reverse | |
5 | * engineered documentation written by Carl-Daniel Hailfinger | |
6 | * and Andrew de Quincey. It's neither supported nor endorsed | |
7 | * by NVIDIA Corp. Use at your own risk. | |
8 | * | |
9 | * NVIDIA, nForce and other NVIDIA marks are trademarks or registered | |
10 | * trademarks of NVIDIA Corporation in the United States and other | |
11 | * countries. | |
12 | * | |
13 | * Copyright (C) 2003,4 Manfred Spraul | |
14 | * Copyright (C) 2004 Andrew de Quincey (wol support) | |
15 | * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane | |
16 | * IRQ rate fixes, bigendian fixes, cleanups, verification) | |
17 | * Copyright (c) 2004 NVIDIA Corporation | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
32 | * | |
33 | * Changelog: | |
34 | * 0.01: 05 Oct 2003: First release that compiles without warnings. | |
35 | * 0.02: 05 Oct 2003: Fix bug for nv_drain_tx: do not try to free NULL skbs. | |
36 | * Check all PCI BARs for the register window. | |
37 | * udelay added to mii_rw. | |
38 | * 0.03: 06 Oct 2003: Initialize dev->irq. | |
39 | * 0.04: 07 Oct 2003: Initialize np->lock, reduce handled irqs, add printks. | |
40 | * 0.05: 09 Oct 2003: printk removed again, irq status print tx_timeout. | |
41 | * 0.06: 10 Oct 2003: MAC Address read updated, pff flag generation updated, | |
42 | * irq mask updated | |
43 | * 0.07: 14 Oct 2003: Further irq mask updates. | |
44 | * 0.08: 20 Oct 2003: rx_desc.Length initialization added, nv_alloc_rx refill | |
45 | * added into irq handler, NULL check for drain_ring. | |
46 | * 0.09: 20 Oct 2003: Basic link speed irq implementation. Only handle the | |
47 | * requested interrupt sources. | |
48 | * 0.10: 20 Oct 2003: First cleanup for release. | |
49 | * 0.11: 21 Oct 2003: hexdump for tx added, rx buffer sizes increased. | |
50 | * MAC Address init fix, set_multicast cleanup. | |
51 | * 0.12: 23 Oct 2003: Cleanups for release. | |
52 | * 0.13: 25 Oct 2003: Limit for concurrent tx packets increased to 10. | |
53 | * Set link speed correctly. start rx before starting | |
54 | * tx (nv_start_rx sets the link speed). | |
55 | * 0.14: 25 Oct 2003: Nic dependant irq mask. | |
56 | * 0.15: 08 Nov 2003: fix smp deadlock with set_multicast_list during | |
57 | * open. | |
58 | * 0.16: 15 Nov 2003: include file cleanup for ppc64, rx buffer size | |
59 | * increased to 1628 bytes. | |
60 | * 0.17: 16 Nov 2003: undo rx buffer size increase. Substract 1 from | |
61 | * the tx length. | |
62 | * 0.18: 17 Nov 2003: fix oops due to late initialization of dev_stats | |
63 | * 0.19: 29 Nov 2003: Handle RxNoBuf, detect & handle invalid mac | |
64 | * addresses, really stop rx if already running | |
65 | * in nv_start_rx, clean up a bit. | |
66 | * 0.20: 07 Dec 2003: alloc fixes | |
67 | * 0.21: 12 Jan 2004: additional alloc fix, nic polling fix. | |
68 | * 0.22: 19 Jan 2004: reprogram timer to a sane rate, avoid lockup | |
69 | * on close. | |
70 | * 0.23: 26 Jan 2004: various small cleanups | |
71 | * 0.24: 27 Feb 2004: make driver even less anonymous in backtraces | |
72 | * 0.25: 09 Mar 2004: wol support | |
73 | * 0.26: 03 Jun 2004: netdriver specific annotation, sparse-related fixes | |
74 | * 0.27: 19 Jun 2004: Gigabit support, new descriptor rings, | |
75 | * added CK804/MCP04 device IDs, code fixes | |
76 | * for registers, link status and other minor fixes. | |
77 | * 0.28: 21 Jun 2004: Big cleanup, making driver mostly endian safe | |
78 | * 0.29: 31 Aug 2004: Add backup timer for link change notification. | |
79 | * 0.30: 25 Sep 2004: rx checksum support for nf 250 Gb. Add rx reset | |
80 | * into nv_close, otherwise reenabling for wol can | |
81 | * cause DMA to kfree'd memory. | |
82 | * 0.31: 14 Nov 2004: ethtool support for getting/setting link | |
83 | * capabilities. | |
22c6d143 | 84 | * 0.32: 16 Apr 2005: RX_ERROR4 handling added. |
8f767fc8 MS |
85 | * 0.33: 16 May 2005: Support for MCP51 added. |
86 | * 0.34: 18 Jun 2005: Add DEV_NEED_LINKTIMER to all nForce nics. | |
f49d16ef | 87 | * 0.35: 26 Jun 2005: Support for MCP55 added. |
dc8216c1 MS |
88 | * 0.36: 28 Jun 2005: Add jumbo frame support. |
89 | * 0.37: 10 Jul 2005: Additional ethtool support, cleanup of pci id list | |
c2dba06d MS |
90 | * 0.38: 16 Jul 2005: tx irq rewrite: Use global flags instead of |
91 | * per-packet flags. | |
ee73362c | 92 | * 0.39: 18 Jul 2005: Add 64bit descriptor support. |
72b31782 | 93 | * 0.40: 19 Jul 2005: Add support for mac address change. |
b3df9f81 MS |
94 | * 0.41: 30 Jul 2005: Write back original MAC in nv_close instead |
95 | * of nv_remove | |
1da177e4 LT |
96 | * |
97 | * Known bugs: | |
98 | * We suspect that on some hardware no TX done interrupts are generated. | |
99 | * This means recovery from netif_stop_queue only happens if the hw timer | |
100 | * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT) | |
101 | * and the timer is active in the IRQMask, or if a rx packet arrives by chance. | |
102 | * If your hardware reliably generates tx done interrupts, then you can remove | |
103 | * DEV_NEED_TIMERIRQ from the driver_data flags. | |
104 | * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few | |
105 | * superfluous timer interrupts from the nic. | |
106 | */ | |
b3df9f81 | 107 | #define FORCEDETH_VERSION "0.41" |
1da177e4 LT |
108 | #define DRV_NAME "forcedeth" |
109 | ||
110 | #include <linux/module.h> | |
111 | #include <linux/types.h> | |
112 | #include <linux/pci.h> | |
113 | #include <linux/interrupt.h> | |
114 | #include <linux/netdevice.h> | |
115 | #include <linux/etherdevice.h> | |
116 | #include <linux/delay.h> | |
117 | #include <linux/spinlock.h> | |
118 | #include <linux/ethtool.h> | |
119 | #include <linux/timer.h> | |
120 | #include <linux/skbuff.h> | |
121 | #include <linux/mii.h> | |
122 | #include <linux/random.h> | |
123 | #include <linux/init.h> | |
22c6d143 | 124 | #include <linux/if_vlan.h> |
1da177e4 LT |
125 | |
126 | #include <asm/irq.h> | |
127 | #include <asm/io.h> | |
128 | #include <asm/uaccess.h> | |
129 | #include <asm/system.h> | |
130 | ||
131 | #if 0 | |
132 | #define dprintk printk | |
133 | #else | |
134 | #define dprintk(x...) do { } while (0) | |
135 | #endif | |
136 | ||
137 | ||
138 | /* | |
139 | * Hardware access: | |
140 | */ | |
141 | ||
c2dba06d MS |
142 | #define DEV_NEED_TIMERIRQ 0x0001 /* set the timer irq flag in the irq mask */ |
143 | #define DEV_NEED_LINKTIMER 0x0002 /* poll link settings. Relies on the timer irq */ | |
144 | #define DEV_HAS_LARGEDESC 0x0004 /* device supports jumbo frames and needs packet format 2 */ | |
ee73362c | 145 | #define DEV_HAS_HIGH_DMA 0x0008 /* device supports 64bit dma */ |
1da177e4 LT |
146 | |
147 | enum { | |
148 | NvRegIrqStatus = 0x000, | |
149 | #define NVREG_IRQSTAT_MIIEVENT 0x040 | |
150 | #define NVREG_IRQSTAT_MASK 0x1ff | |
151 | NvRegIrqMask = 0x004, | |
152 | #define NVREG_IRQ_RX_ERROR 0x0001 | |
153 | #define NVREG_IRQ_RX 0x0002 | |
154 | #define NVREG_IRQ_RX_NOBUF 0x0004 | |
155 | #define NVREG_IRQ_TX_ERR 0x0008 | |
c2dba06d | 156 | #define NVREG_IRQ_TX_OK 0x0010 |
1da177e4 LT |
157 | #define NVREG_IRQ_TIMER 0x0020 |
158 | #define NVREG_IRQ_LINK 0x0040 | |
c2dba06d | 159 | #define NVREG_IRQ_TX_ERROR 0x0080 |
1da177e4 | 160 | #define NVREG_IRQ_TX1 0x0100 |
c2dba06d MS |
161 | #define NVREG_IRQMASK_WANTED 0x00df |
162 | ||
163 | #define NVREG_IRQ_UNKNOWN (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \ | |
164 | NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_TX_ERROR| \ | |
165 | NVREG_IRQ_TX1)) | |
1da177e4 LT |
166 | |
167 | NvRegUnknownSetupReg6 = 0x008, | |
168 | #define NVREG_UNKSETUP6_VAL 3 | |
169 | ||
170 | /* | |
171 | * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic | |
172 | * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms | |
173 | */ | |
174 | NvRegPollingInterval = 0x00c, | |
175 | #define NVREG_POLL_DEFAULT 970 | |
176 | NvRegMisc1 = 0x080, | |
177 | #define NVREG_MISC1_HD 0x02 | |
178 | #define NVREG_MISC1_FORCE 0x3b0f3c | |
179 | ||
180 | NvRegTransmitterControl = 0x084, | |
181 | #define NVREG_XMITCTL_START 0x01 | |
182 | NvRegTransmitterStatus = 0x088, | |
183 | #define NVREG_XMITSTAT_BUSY 0x01 | |
184 | ||
185 | NvRegPacketFilterFlags = 0x8c, | |
186 | #define NVREG_PFF_ALWAYS 0x7F0008 | |
187 | #define NVREG_PFF_PROMISC 0x80 | |
188 | #define NVREG_PFF_MYADDR 0x20 | |
189 | ||
190 | NvRegOffloadConfig = 0x90, | |
191 | #define NVREG_OFFLOAD_HOMEPHY 0x601 | |
192 | #define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE | |
193 | NvRegReceiverControl = 0x094, | |
194 | #define NVREG_RCVCTL_START 0x01 | |
195 | NvRegReceiverStatus = 0x98, | |
196 | #define NVREG_RCVSTAT_BUSY 0x01 | |
197 | ||
198 | NvRegRandomSeed = 0x9c, | |
199 | #define NVREG_RNDSEED_MASK 0x00ff | |
200 | #define NVREG_RNDSEED_FORCE 0x7f00 | |
201 | #define NVREG_RNDSEED_FORCE2 0x2d00 | |
202 | #define NVREG_RNDSEED_FORCE3 0x7400 | |
203 | ||
204 | NvRegUnknownSetupReg1 = 0xA0, | |
205 | #define NVREG_UNKSETUP1_VAL 0x16070f | |
206 | NvRegUnknownSetupReg2 = 0xA4, | |
207 | #define NVREG_UNKSETUP2_VAL 0x16 | |
208 | NvRegMacAddrA = 0xA8, | |
209 | NvRegMacAddrB = 0xAC, | |
210 | NvRegMulticastAddrA = 0xB0, | |
211 | #define NVREG_MCASTADDRA_FORCE 0x01 | |
212 | NvRegMulticastAddrB = 0xB4, | |
213 | NvRegMulticastMaskA = 0xB8, | |
214 | NvRegMulticastMaskB = 0xBC, | |
215 | ||
216 | NvRegPhyInterface = 0xC0, | |
217 | #define PHY_RGMII 0x10000000 | |
218 | ||
219 | NvRegTxRingPhysAddr = 0x100, | |
220 | NvRegRxRingPhysAddr = 0x104, | |
221 | NvRegRingSizes = 0x108, | |
222 | #define NVREG_RINGSZ_TXSHIFT 0 | |
223 | #define NVREG_RINGSZ_RXSHIFT 16 | |
224 | NvRegUnknownTransmitterReg = 0x10c, | |
225 | NvRegLinkSpeed = 0x110, | |
226 | #define NVREG_LINKSPEED_FORCE 0x10000 | |
227 | #define NVREG_LINKSPEED_10 1000 | |
228 | #define NVREG_LINKSPEED_100 100 | |
229 | #define NVREG_LINKSPEED_1000 50 | |
230 | #define NVREG_LINKSPEED_MASK (0xFFF) | |
231 | NvRegUnknownSetupReg5 = 0x130, | |
232 | #define NVREG_UNKSETUP5_BIT31 (1<<31) | |
233 | NvRegUnknownSetupReg3 = 0x13c, | |
234 | #define NVREG_UNKSETUP3_VAL1 0x200010 | |
235 | NvRegTxRxControl = 0x144, | |
236 | #define NVREG_TXRXCTL_KICK 0x0001 | |
237 | #define NVREG_TXRXCTL_BIT1 0x0002 | |
238 | #define NVREG_TXRXCTL_BIT2 0x0004 | |
239 | #define NVREG_TXRXCTL_IDLE 0x0008 | |
240 | #define NVREG_TXRXCTL_RESET 0x0010 | |
241 | #define NVREG_TXRXCTL_RXCHECK 0x0400 | |
242 | NvRegMIIStatus = 0x180, | |
243 | #define NVREG_MIISTAT_ERROR 0x0001 | |
244 | #define NVREG_MIISTAT_LINKCHANGE 0x0008 | |
245 | #define NVREG_MIISTAT_MASK 0x000f | |
246 | #define NVREG_MIISTAT_MASK2 0x000f | |
247 | NvRegUnknownSetupReg4 = 0x184, | |
248 | #define NVREG_UNKSETUP4_VAL 8 | |
249 | ||
250 | NvRegAdapterControl = 0x188, | |
251 | #define NVREG_ADAPTCTL_START 0x02 | |
252 | #define NVREG_ADAPTCTL_LINKUP 0x04 | |
253 | #define NVREG_ADAPTCTL_PHYVALID 0x40000 | |
254 | #define NVREG_ADAPTCTL_RUNNING 0x100000 | |
255 | #define NVREG_ADAPTCTL_PHYSHIFT 24 | |
256 | NvRegMIISpeed = 0x18c, | |
257 | #define NVREG_MIISPEED_BIT8 (1<<8) | |
258 | #define NVREG_MIIDELAY 5 | |
259 | NvRegMIIControl = 0x190, | |
260 | #define NVREG_MIICTL_INUSE 0x08000 | |
261 | #define NVREG_MIICTL_WRITE 0x00400 | |
262 | #define NVREG_MIICTL_ADDRSHIFT 5 | |
263 | NvRegMIIData = 0x194, | |
264 | NvRegWakeUpFlags = 0x200, | |
265 | #define NVREG_WAKEUPFLAGS_VAL 0x7770 | |
266 | #define NVREG_WAKEUPFLAGS_BUSYSHIFT 24 | |
267 | #define NVREG_WAKEUPFLAGS_ENABLESHIFT 16 | |
268 | #define NVREG_WAKEUPFLAGS_D3SHIFT 12 | |
269 | #define NVREG_WAKEUPFLAGS_D2SHIFT 8 | |
270 | #define NVREG_WAKEUPFLAGS_D1SHIFT 4 | |
271 | #define NVREG_WAKEUPFLAGS_D0SHIFT 0 | |
272 | #define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01 | |
273 | #define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02 | |
274 | #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04 | |
275 | #define NVREG_WAKEUPFLAGS_ENABLE 0x1111 | |
276 | ||
277 | NvRegPatternCRC = 0x204, | |
278 | NvRegPatternMask = 0x208, | |
279 | NvRegPowerCap = 0x268, | |
280 | #define NVREG_POWERCAP_D3SUPP (1<<30) | |
281 | #define NVREG_POWERCAP_D2SUPP (1<<26) | |
282 | #define NVREG_POWERCAP_D1SUPP (1<<25) | |
283 | NvRegPowerState = 0x26c, | |
284 | #define NVREG_POWERSTATE_POWEREDUP 0x8000 | |
285 | #define NVREG_POWERSTATE_VALID 0x0100 | |
286 | #define NVREG_POWERSTATE_MASK 0x0003 | |
287 | #define NVREG_POWERSTATE_D0 0x0000 | |
288 | #define NVREG_POWERSTATE_D1 0x0001 | |
289 | #define NVREG_POWERSTATE_D2 0x0002 | |
290 | #define NVREG_POWERSTATE_D3 0x0003 | |
291 | }; | |
292 | ||
293 | /* Big endian: should work, but is untested */ | |
294 | struct ring_desc { | |
295 | u32 PacketBuffer; | |
296 | u32 FlagLen; | |
297 | }; | |
298 | ||
ee73362c MS |
299 | struct ring_desc_ex { |
300 | u32 PacketBufferHigh; | |
301 | u32 PacketBufferLow; | |
302 | u32 Reserved; | |
303 | u32 FlagLen; | |
304 | }; | |
305 | ||
306 | typedef union _ring_type { | |
307 | struct ring_desc* orig; | |
308 | struct ring_desc_ex* ex; | |
309 | } ring_type; | |
310 | ||
1da177e4 LT |
311 | #define FLAG_MASK_V1 0xffff0000 |
312 | #define FLAG_MASK_V2 0xffffc000 | |
313 | #define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1) | |
314 | #define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2) | |
315 | ||
316 | #define NV_TX_LASTPACKET (1<<16) | |
317 | #define NV_TX_RETRYERROR (1<<19) | |
c2dba06d | 318 | #define NV_TX_FORCED_INTERRUPT (1<<24) |
1da177e4 LT |
319 | #define NV_TX_DEFERRED (1<<26) |
320 | #define NV_TX_CARRIERLOST (1<<27) | |
321 | #define NV_TX_LATECOLLISION (1<<28) | |
322 | #define NV_TX_UNDERFLOW (1<<29) | |
323 | #define NV_TX_ERROR (1<<30) | |
324 | #define NV_TX_VALID (1<<31) | |
325 | ||
326 | #define NV_TX2_LASTPACKET (1<<29) | |
327 | #define NV_TX2_RETRYERROR (1<<18) | |
c2dba06d | 328 | #define NV_TX2_FORCED_INTERRUPT (1<<30) |
1da177e4 LT |
329 | #define NV_TX2_DEFERRED (1<<25) |
330 | #define NV_TX2_CARRIERLOST (1<<26) | |
331 | #define NV_TX2_LATECOLLISION (1<<27) | |
332 | #define NV_TX2_UNDERFLOW (1<<28) | |
333 | /* error and valid are the same for both */ | |
334 | #define NV_TX2_ERROR (1<<30) | |
335 | #define NV_TX2_VALID (1<<31) | |
336 | ||
337 | #define NV_RX_DESCRIPTORVALID (1<<16) | |
338 | #define NV_RX_MISSEDFRAME (1<<17) | |
339 | #define NV_RX_SUBSTRACT1 (1<<18) | |
340 | #define NV_RX_ERROR1 (1<<23) | |
341 | #define NV_RX_ERROR2 (1<<24) | |
342 | #define NV_RX_ERROR3 (1<<25) | |
343 | #define NV_RX_ERROR4 (1<<26) | |
344 | #define NV_RX_CRCERR (1<<27) | |
345 | #define NV_RX_OVERFLOW (1<<28) | |
346 | #define NV_RX_FRAMINGERR (1<<29) | |
347 | #define NV_RX_ERROR (1<<30) | |
348 | #define NV_RX_AVAIL (1<<31) | |
349 | ||
350 | #define NV_RX2_CHECKSUMMASK (0x1C000000) | |
351 | #define NV_RX2_CHECKSUMOK1 (0x10000000) | |
352 | #define NV_RX2_CHECKSUMOK2 (0x14000000) | |
353 | #define NV_RX2_CHECKSUMOK3 (0x18000000) | |
354 | #define NV_RX2_DESCRIPTORVALID (1<<29) | |
355 | #define NV_RX2_SUBSTRACT1 (1<<25) | |
356 | #define NV_RX2_ERROR1 (1<<18) | |
357 | #define NV_RX2_ERROR2 (1<<19) | |
358 | #define NV_RX2_ERROR3 (1<<20) | |
359 | #define NV_RX2_ERROR4 (1<<21) | |
360 | #define NV_RX2_CRCERR (1<<22) | |
361 | #define NV_RX2_OVERFLOW (1<<23) | |
362 | #define NV_RX2_FRAMINGERR (1<<24) | |
363 | /* error and avail are the same for both */ | |
364 | #define NV_RX2_ERROR (1<<30) | |
365 | #define NV_RX2_AVAIL (1<<31) | |
366 | ||
367 | /* Miscelaneous hardware related defines: */ | |
368 | #define NV_PCI_REGSZ 0x270 | |
369 | ||
370 | /* various timeout delays: all in usec */ | |
371 | #define NV_TXRX_RESET_DELAY 4 | |
372 | #define NV_TXSTOP_DELAY1 10 | |
373 | #define NV_TXSTOP_DELAY1MAX 500000 | |
374 | #define NV_TXSTOP_DELAY2 100 | |
375 | #define NV_RXSTOP_DELAY1 10 | |
376 | #define NV_RXSTOP_DELAY1MAX 500000 | |
377 | #define NV_RXSTOP_DELAY2 100 | |
378 | #define NV_SETUP5_DELAY 5 | |
379 | #define NV_SETUP5_DELAYMAX 50000 | |
380 | #define NV_POWERUP_DELAY 5 | |
381 | #define NV_POWERUP_DELAYMAX 5000 | |
382 | #define NV_MIIBUSY_DELAY 50 | |
383 | #define NV_MIIPHY_DELAY 10 | |
384 | #define NV_MIIPHY_DELAYMAX 10000 | |
385 | ||
386 | #define NV_WAKEUPPATTERNS 5 | |
387 | #define NV_WAKEUPMASKENTRIES 4 | |
388 | ||
389 | /* General driver defaults */ | |
390 | #define NV_WATCHDOG_TIMEO (5*HZ) | |
391 | ||
392 | #define RX_RING 128 | |
393 | #define TX_RING 64 | |
394 | /* | |
395 | * If your nic mysteriously hangs then try to reduce the limits | |
396 | * to 1/0: It might be required to set NV_TX_LASTPACKET in the | |
397 | * last valid ring entry. But this would be impossible to | |
398 | * implement - probably a disassembly error. | |
399 | */ | |
400 | #define TX_LIMIT_STOP 63 | |
401 | #define TX_LIMIT_START 62 | |
402 | ||
403 | /* rx/tx mac addr + type + vlan + align + slack*/ | |
d81c0983 MS |
404 | #define NV_RX_HEADERS (64) |
405 | /* even more slack. */ | |
406 | #define NV_RX_ALLOC_PAD (64) | |
407 | ||
408 | /* maximum mtu size */ | |
409 | #define NV_PKTLIMIT_1 ETH_DATA_LEN /* hard limit not known */ | |
410 | #define NV_PKTLIMIT_2 9100 /* Actual limit according to NVidia: 9202 */ | |
1da177e4 LT |
411 | |
412 | #define OOM_REFILL (1+HZ/20) | |
413 | #define POLL_WAIT (1+HZ/100) | |
414 | #define LINK_TIMEOUT (3*HZ) | |
415 | ||
416 | /* | |
417 | * desc_ver values: | |
418 | * This field has two purposes: | |
419 | * - Newer nics uses a different ring layout. The layout is selected by | |
420 | * comparing np->desc_ver with DESC_VER_xy. | |
421 | * - It contains bits that are forced on when writing to NvRegTxRxControl. | |
422 | */ | |
423 | #define DESC_VER_1 0x0 | |
424 | #define DESC_VER_2 (0x02100|NVREG_TXRXCTL_RXCHECK) | |
ee73362c | 425 | #define DESC_VER_3 (0x02200|NVREG_TXRXCTL_RXCHECK) |
1da177e4 LT |
426 | |
427 | /* PHY defines */ | |
428 | #define PHY_OUI_MARVELL 0x5043 | |
429 | #define PHY_OUI_CICADA 0x03f1 | |
430 | #define PHYID1_OUI_MASK 0x03ff | |
431 | #define PHYID1_OUI_SHFT 6 | |
432 | #define PHYID2_OUI_MASK 0xfc00 | |
433 | #define PHYID2_OUI_SHFT 10 | |
434 | #define PHY_INIT1 0x0f000 | |
435 | #define PHY_INIT2 0x0e00 | |
436 | #define PHY_INIT3 0x01000 | |
437 | #define PHY_INIT4 0x0200 | |
438 | #define PHY_INIT5 0x0004 | |
439 | #define PHY_INIT6 0x02000 | |
440 | #define PHY_GIGABIT 0x0100 | |
441 | ||
442 | #define PHY_TIMEOUT 0x1 | |
443 | #define PHY_ERROR 0x2 | |
444 | ||
445 | #define PHY_100 0x1 | |
446 | #define PHY_1000 0x2 | |
447 | #define PHY_HALF 0x100 | |
448 | ||
449 | /* FIXME: MII defines that should be added to <linux/mii.h> */ | |
450 | #define MII_1000BT_CR 0x09 | |
451 | #define MII_1000BT_SR 0x0a | |
452 | #define ADVERTISE_1000FULL 0x0200 | |
453 | #define ADVERTISE_1000HALF 0x0100 | |
454 | #define LPA_1000FULL 0x0800 | |
455 | #define LPA_1000HALF 0x0400 | |
456 | ||
457 | ||
458 | /* | |
459 | * SMP locking: | |
460 | * All hardware access under dev->priv->lock, except the performance | |
461 | * critical parts: | |
462 | * - rx is (pseudo-) lockless: it relies on the single-threading provided | |
463 | * by the arch code for interrupts. | |
464 | * - tx setup is lockless: it relies on dev->xmit_lock. Actual submission | |
465 | * needs dev->priv->lock :-( | |
466 | * - set_multicast_list: preparation lockless, relies on dev->xmit_lock. | |
467 | */ | |
468 | ||
469 | /* in dev: base, irq */ | |
470 | struct fe_priv { | |
471 | spinlock_t lock; | |
472 | ||
473 | /* General data: | |
474 | * Locking: spin_lock(&np->lock); */ | |
475 | struct net_device_stats stats; | |
476 | int in_shutdown; | |
477 | u32 linkspeed; | |
478 | int duplex; | |
479 | int autoneg; | |
480 | int fixed_mode; | |
481 | int phyaddr; | |
482 | int wolenabled; | |
483 | unsigned int phy_oui; | |
484 | u16 gigabit; | |
485 | ||
486 | /* General data: RO fields */ | |
487 | dma_addr_t ring_addr; | |
488 | struct pci_dev *pci_dev; | |
489 | u32 orig_mac[2]; | |
490 | u32 irqmask; | |
491 | u32 desc_ver; | |
492 | ||
493 | void __iomem *base; | |
494 | ||
495 | /* rx specific fields. | |
496 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
497 | */ | |
ee73362c | 498 | ring_type rx_ring; |
1da177e4 LT |
499 | unsigned int cur_rx, refill_rx; |
500 | struct sk_buff *rx_skbuff[RX_RING]; | |
501 | dma_addr_t rx_dma[RX_RING]; | |
502 | unsigned int rx_buf_sz; | |
d81c0983 | 503 | unsigned int pkt_limit; |
1da177e4 LT |
504 | struct timer_list oom_kick; |
505 | struct timer_list nic_poll; | |
506 | ||
507 | /* media detection workaround. | |
508 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
509 | */ | |
510 | int need_linktimer; | |
511 | unsigned long link_timeout; | |
512 | /* | |
513 | * tx specific fields. | |
514 | */ | |
ee73362c | 515 | ring_type tx_ring; |
1da177e4 LT |
516 | unsigned int next_tx, nic_tx; |
517 | struct sk_buff *tx_skbuff[TX_RING]; | |
518 | dma_addr_t tx_dma[TX_RING]; | |
519 | u32 tx_flags; | |
520 | }; | |
521 | ||
522 | /* | |
523 | * Maximum number of loops until we assume that a bit in the irq mask | |
524 | * is stuck. Overridable with module param. | |
525 | */ | |
526 | static int max_interrupt_work = 5; | |
527 | ||
528 | static inline struct fe_priv *get_nvpriv(struct net_device *dev) | |
529 | { | |
530 | return netdev_priv(dev); | |
531 | } | |
532 | ||
533 | static inline u8 __iomem *get_hwbase(struct net_device *dev) | |
534 | { | |
535 | return get_nvpriv(dev)->base; | |
536 | } | |
537 | ||
538 | static inline void pci_push(u8 __iomem *base) | |
539 | { | |
540 | /* force out pending posted writes */ | |
541 | readl(base); | |
542 | } | |
543 | ||
544 | static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v) | |
545 | { | |
546 | return le32_to_cpu(prd->FlagLen) | |
547 | & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2); | |
548 | } | |
549 | ||
ee73362c MS |
550 | static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v) |
551 | { | |
552 | return le32_to_cpu(prd->FlagLen) & LEN_MASK_V2; | |
553 | } | |
554 | ||
1da177e4 LT |
555 | static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target, |
556 | int delay, int delaymax, const char *msg) | |
557 | { | |
558 | u8 __iomem *base = get_hwbase(dev); | |
559 | ||
560 | pci_push(base); | |
561 | do { | |
562 | udelay(delay); | |
563 | delaymax -= delay; | |
564 | if (delaymax < 0) { | |
565 | if (msg) | |
566 | printk(msg); | |
567 | return 1; | |
568 | } | |
569 | } while ((readl(base + offset) & mask) != target); | |
570 | return 0; | |
571 | } | |
572 | ||
573 | #define MII_READ (-1) | |
574 | /* mii_rw: read/write a register on the PHY. | |
575 | * | |
576 | * Caller must guarantee serialization | |
577 | */ | |
578 | static int mii_rw(struct net_device *dev, int addr, int miireg, int value) | |
579 | { | |
580 | u8 __iomem *base = get_hwbase(dev); | |
581 | u32 reg; | |
582 | int retval; | |
583 | ||
584 | writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); | |
585 | ||
586 | reg = readl(base + NvRegMIIControl); | |
587 | if (reg & NVREG_MIICTL_INUSE) { | |
588 | writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl); | |
589 | udelay(NV_MIIBUSY_DELAY); | |
590 | } | |
591 | ||
592 | reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg; | |
593 | if (value != MII_READ) { | |
594 | writel(value, base + NvRegMIIData); | |
595 | reg |= NVREG_MIICTL_WRITE; | |
596 | } | |
597 | writel(reg, base + NvRegMIIControl); | |
598 | ||
599 | if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0, | |
600 | NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) { | |
601 | dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n", | |
602 | dev->name, miireg, addr); | |
603 | retval = -1; | |
604 | } else if (value != MII_READ) { | |
605 | /* it was a write operation - fewer failures are detectable */ | |
606 | dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n", | |
607 | dev->name, value, miireg, addr); | |
608 | retval = 0; | |
609 | } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) { | |
610 | dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n", | |
611 | dev->name, miireg, addr); | |
612 | retval = -1; | |
613 | } else { | |
614 | retval = readl(base + NvRegMIIData); | |
615 | dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n", | |
616 | dev->name, miireg, addr, retval); | |
617 | } | |
618 | ||
619 | return retval; | |
620 | } | |
621 | ||
622 | static int phy_reset(struct net_device *dev) | |
623 | { | |
624 | struct fe_priv *np = get_nvpriv(dev); | |
625 | u32 miicontrol; | |
626 | unsigned int tries = 0; | |
627 | ||
628 | miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
629 | miicontrol |= BMCR_RESET; | |
630 | if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) { | |
631 | return -1; | |
632 | } | |
633 | ||
634 | /* wait for 500ms */ | |
635 | msleep(500); | |
636 | ||
637 | /* must wait till reset is deasserted */ | |
638 | while (miicontrol & BMCR_RESET) { | |
639 | msleep(10); | |
640 | miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
641 | /* FIXME: 100 tries seem excessive */ | |
642 | if (tries++ > 100) | |
643 | return -1; | |
644 | } | |
645 | return 0; | |
646 | } | |
647 | ||
648 | static int phy_init(struct net_device *dev) | |
649 | { | |
650 | struct fe_priv *np = get_nvpriv(dev); | |
651 | u8 __iomem *base = get_hwbase(dev); | |
652 | u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg; | |
653 | ||
654 | /* set advertise register */ | |
655 | reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
656 | reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|0x800|0x400); | |
657 | if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) { | |
658 | printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev)); | |
659 | return PHY_ERROR; | |
660 | } | |
661 | ||
662 | /* get phy interface type */ | |
663 | phyinterface = readl(base + NvRegPhyInterface); | |
664 | ||
665 | /* see if gigabit phy */ | |
666 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
667 | if (mii_status & PHY_GIGABIT) { | |
668 | np->gigabit = PHY_GIGABIT; | |
669 | mii_control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ); | |
670 | mii_control_1000 &= ~ADVERTISE_1000HALF; | |
671 | if (phyinterface & PHY_RGMII) | |
672 | mii_control_1000 |= ADVERTISE_1000FULL; | |
673 | else | |
674 | mii_control_1000 &= ~ADVERTISE_1000FULL; | |
675 | ||
676 | if (mii_rw(dev, np->phyaddr, MII_1000BT_CR, mii_control_1000)) { | |
677 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
678 | return PHY_ERROR; | |
679 | } | |
680 | } | |
681 | else | |
682 | np->gigabit = 0; | |
683 | ||
684 | /* reset the phy */ | |
685 | if (phy_reset(dev)) { | |
686 | printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev)); | |
687 | return PHY_ERROR; | |
688 | } | |
689 | ||
690 | /* phy vendor specific configuration */ | |
691 | if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) { | |
692 | phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ); | |
693 | phy_reserved &= ~(PHY_INIT1 | PHY_INIT2); | |
694 | phy_reserved |= (PHY_INIT3 | PHY_INIT4); | |
695 | if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) { | |
696 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
697 | return PHY_ERROR; | |
698 | } | |
699 | phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ); | |
700 | phy_reserved |= PHY_INIT5; | |
701 | if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) { | |
702 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
703 | return PHY_ERROR; | |
704 | } | |
705 | } | |
706 | if (np->phy_oui == PHY_OUI_CICADA) { | |
707 | phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ); | |
708 | phy_reserved |= PHY_INIT6; | |
709 | if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) { | |
710 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
711 | return PHY_ERROR; | |
712 | } | |
713 | } | |
714 | ||
715 | /* restart auto negotiation */ | |
716 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
717 | mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); | |
718 | if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) { | |
719 | return PHY_ERROR; | |
720 | } | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
725 | static void nv_start_rx(struct net_device *dev) | |
726 | { | |
727 | struct fe_priv *np = get_nvpriv(dev); | |
728 | u8 __iomem *base = get_hwbase(dev); | |
729 | ||
730 | dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name); | |
731 | /* Already running? Stop it. */ | |
732 | if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) { | |
733 | writel(0, base + NvRegReceiverControl); | |
734 | pci_push(base); | |
735 | } | |
736 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
737 | pci_push(base); | |
738 | writel(NVREG_RCVCTL_START, base + NvRegReceiverControl); | |
739 | dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n", | |
740 | dev->name, np->duplex, np->linkspeed); | |
741 | pci_push(base); | |
742 | } | |
743 | ||
744 | static void nv_stop_rx(struct net_device *dev) | |
745 | { | |
746 | u8 __iomem *base = get_hwbase(dev); | |
747 | ||
748 | dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name); | |
749 | writel(0, base + NvRegReceiverControl); | |
750 | reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0, | |
751 | NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX, | |
752 | KERN_INFO "nv_stop_rx: ReceiverStatus remained busy"); | |
753 | ||
754 | udelay(NV_RXSTOP_DELAY2); | |
755 | writel(0, base + NvRegLinkSpeed); | |
756 | } | |
757 | ||
758 | static void nv_start_tx(struct net_device *dev) | |
759 | { | |
760 | u8 __iomem *base = get_hwbase(dev); | |
761 | ||
762 | dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name); | |
763 | writel(NVREG_XMITCTL_START, base + NvRegTransmitterControl); | |
764 | pci_push(base); | |
765 | } | |
766 | ||
767 | static void nv_stop_tx(struct net_device *dev) | |
768 | { | |
769 | u8 __iomem *base = get_hwbase(dev); | |
770 | ||
771 | dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name); | |
772 | writel(0, base + NvRegTransmitterControl); | |
773 | reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0, | |
774 | NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX, | |
775 | KERN_INFO "nv_stop_tx: TransmitterStatus remained busy"); | |
776 | ||
777 | udelay(NV_TXSTOP_DELAY2); | |
778 | writel(0, base + NvRegUnknownTransmitterReg); | |
779 | } | |
780 | ||
781 | static void nv_txrx_reset(struct net_device *dev) | |
782 | { | |
783 | struct fe_priv *np = get_nvpriv(dev); | |
784 | u8 __iomem *base = get_hwbase(dev); | |
785 | ||
786 | dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name); | |
787 | writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->desc_ver, base + NvRegTxRxControl); | |
788 | pci_push(base); | |
789 | udelay(NV_TXRX_RESET_DELAY); | |
790 | writel(NVREG_TXRXCTL_BIT2 | np->desc_ver, base + NvRegTxRxControl); | |
791 | pci_push(base); | |
792 | } | |
793 | ||
794 | /* | |
795 | * nv_get_stats: dev->get_stats function | |
796 | * Get latest stats value from the nic. | |
797 | * Called with read_lock(&dev_base_lock) held for read - | |
798 | * only synchronized against unregister_netdevice. | |
799 | */ | |
800 | static struct net_device_stats *nv_get_stats(struct net_device *dev) | |
801 | { | |
802 | struct fe_priv *np = get_nvpriv(dev); | |
803 | ||
804 | /* It seems that the nic always generates interrupts and doesn't | |
805 | * accumulate errors internally. Thus the current values in np->stats | |
806 | * are already up to date. | |
807 | */ | |
808 | return &np->stats; | |
809 | } | |
810 | ||
811 | /* | |
812 | * nv_alloc_rx: fill rx ring entries. | |
813 | * Return 1 if the allocations for the skbs failed and the | |
814 | * rx engine is without Available descriptors | |
815 | */ | |
816 | static int nv_alloc_rx(struct net_device *dev) | |
817 | { | |
818 | struct fe_priv *np = get_nvpriv(dev); | |
819 | unsigned int refill_rx = np->refill_rx; | |
820 | int nr; | |
821 | ||
822 | while (np->cur_rx != refill_rx) { | |
823 | struct sk_buff *skb; | |
824 | ||
825 | nr = refill_rx % RX_RING; | |
826 | if (np->rx_skbuff[nr] == NULL) { | |
827 | ||
d81c0983 | 828 | skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD); |
1da177e4 LT |
829 | if (!skb) |
830 | break; | |
831 | ||
832 | skb->dev = dev; | |
833 | np->rx_skbuff[nr] = skb; | |
834 | } else { | |
835 | skb = np->rx_skbuff[nr]; | |
836 | } | |
837 | np->rx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len, | |
838 | PCI_DMA_FROMDEVICE); | |
ee73362c MS |
839 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
840 | np->rx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->rx_dma[nr]); | |
841 | wmb(); | |
842 | np->rx_ring.orig[nr].FlagLen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL); | |
843 | } else { | |
844 | np->rx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->rx_dma[nr]) >> 32; | |
845 | np->rx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->rx_dma[nr]) & 0x0FFFFFFFF; | |
846 | wmb(); | |
847 | np->rx_ring.ex[nr].FlagLen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL); | |
848 | } | |
1da177e4 LT |
849 | dprintk(KERN_DEBUG "%s: nv_alloc_rx: Packet %d marked as Available\n", |
850 | dev->name, refill_rx); | |
851 | refill_rx++; | |
852 | } | |
853 | np->refill_rx = refill_rx; | |
854 | if (np->cur_rx - refill_rx == RX_RING) | |
855 | return 1; | |
856 | return 0; | |
857 | } | |
858 | ||
859 | static void nv_do_rx_refill(unsigned long data) | |
860 | { | |
861 | struct net_device *dev = (struct net_device *) data; | |
862 | struct fe_priv *np = get_nvpriv(dev); | |
863 | ||
864 | disable_irq(dev->irq); | |
865 | if (nv_alloc_rx(dev)) { | |
866 | spin_lock(&np->lock); | |
867 | if (!np->in_shutdown) | |
868 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
869 | spin_unlock(&np->lock); | |
870 | } | |
871 | enable_irq(dev->irq); | |
872 | } | |
873 | ||
d81c0983 | 874 | static void nv_init_rx(struct net_device *dev) |
1da177e4 LT |
875 | { |
876 | struct fe_priv *np = get_nvpriv(dev); | |
877 | int i; | |
878 | ||
1da177e4 LT |
879 | np->cur_rx = RX_RING; |
880 | np->refill_rx = 0; | |
881 | for (i = 0; i < RX_RING; i++) | |
ee73362c MS |
882 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
883 | np->rx_ring.orig[i].FlagLen = 0; | |
884 | else | |
885 | np->rx_ring.ex[i].FlagLen = 0; | |
d81c0983 MS |
886 | } |
887 | ||
888 | static void nv_init_tx(struct net_device *dev) | |
889 | { | |
890 | struct fe_priv *np = get_nvpriv(dev); | |
891 | int i; | |
892 | ||
893 | np->next_tx = np->nic_tx = 0; | |
894 | for (i = 0; i < TX_RING; i++) | |
ee73362c MS |
895 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
896 | np->tx_ring.orig[i].FlagLen = 0; | |
897 | else | |
898 | np->tx_ring.ex[i].FlagLen = 0; | |
d81c0983 MS |
899 | } |
900 | ||
901 | static int nv_init_ring(struct net_device *dev) | |
902 | { | |
903 | nv_init_tx(dev); | |
904 | nv_init_rx(dev); | |
1da177e4 LT |
905 | return nv_alloc_rx(dev); |
906 | } | |
907 | ||
908 | static void nv_drain_tx(struct net_device *dev) | |
909 | { | |
910 | struct fe_priv *np = get_nvpriv(dev); | |
911 | int i; | |
912 | for (i = 0; i < TX_RING; i++) { | |
ee73362c MS |
913 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
914 | np->tx_ring.orig[i].FlagLen = 0; | |
915 | else | |
916 | np->tx_ring.ex[i].FlagLen = 0; | |
1da177e4 LT |
917 | if (np->tx_skbuff[i]) { |
918 | pci_unmap_single(np->pci_dev, np->tx_dma[i], | |
919 | np->tx_skbuff[i]->len, | |
920 | PCI_DMA_TODEVICE); | |
921 | dev_kfree_skb(np->tx_skbuff[i]); | |
922 | np->tx_skbuff[i] = NULL; | |
923 | np->stats.tx_dropped++; | |
924 | } | |
925 | } | |
926 | } | |
927 | ||
928 | static void nv_drain_rx(struct net_device *dev) | |
929 | { | |
930 | struct fe_priv *np = get_nvpriv(dev); | |
931 | int i; | |
932 | for (i = 0; i < RX_RING; i++) { | |
ee73362c MS |
933 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
934 | np->rx_ring.orig[i].FlagLen = 0; | |
935 | else | |
936 | np->rx_ring.ex[i].FlagLen = 0; | |
1da177e4 LT |
937 | wmb(); |
938 | if (np->rx_skbuff[i]) { | |
939 | pci_unmap_single(np->pci_dev, np->rx_dma[i], | |
940 | np->rx_skbuff[i]->len, | |
941 | PCI_DMA_FROMDEVICE); | |
942 | dev_kfree_skb(np->rx_skbuff[i]); | |
943 | np->rx_skbuff[i] = NULL; | |
944 | } | |
945 | } | |
946 | } | |
947 | ||
948 | static void drain_ring(struct net_device *dev) | |
949 | { | |
950 | nv_drain_tx(dev); | |
951 | nv_drain_rx(dev); | |
952 | } | |
953 | ||
954 | /* | |
955 | * nv_start_xmit: dev->hard_start_xmit function | |
956 | * Called with dev->xmit_lock held. | |
957 | */ | |
958 | static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
959 | { | |
960 | struct fe_priv *np = get_nvpriv(dev); | |
961 | int nr = np->next_tx % TX_RING; | |
962 | ||
963 | np->tx_skbuff[nr] = skb; | |
964 | np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data,skb->len, | |
965 | PCI_DMA_TODEVICE); | |
966 | ||
ee73362c MS |
967 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
968 | np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]); | |
969 | else { | |
970 | np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32; | |
971 | np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF; | |
972 | } | |
1da177e4 LT |
973 | |
974 | spin_lock_irq(&np->lock); | |
975 | wmb(); | |
ee73362c MS |
976 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
977 | np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags ); | |
978 | else | |
979 | np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags ); | |
1da177e4 LT |
980 | dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission.\n", |
981 | dev->name, np->next_tx); | |
982 | { | |
983 | int j; | |
984 | for (j=0; j<64; j++) { | |
985 | if ((j%16) == 0) | |
986 | dprintk("\n%03x:", j); | |
987 | dprintk(" %02x", ((unsigned char*)skb->data)[j]); | |
988 | } | |
989 | dprintk("\n"); | |
990 | } | |
991 | ||
992 | np->next_tx++; | |
993 | ||
994 | dev->trans_start = jiffies; | |
995 | if (np->next_tx - np->nic_tx >= TX_LIMIT_STOP) | |
996 | netif_stop_queue(dev); | |
997 | spin_unlock_irq(&np->lock); | |
998 | writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl); | |
999 | pci_push(get_hwbase(dev)); | |
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | /* | |
1004 | * nv_tx_done: check for completed packets, release the skbs. | |
1005 | * | |
1006 | * Caller must own np->lock. | |
1007 | */ | |
1008 | static void nv_tx_done(struct net_device *dev) | |
1009 | { | |
1010 | struct fe_priv *np = get_nvpriv(dev); | |
1011 | u32 Flags; | |
1012 | int i; | |
1013 | ||
1014 | while (np->nic_tx != np->next_tx) { | |
1015 | i = np->nic_tx % TX_RING; | |
1016 | ||
ee73362c MS |
1017 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
1018 | Flags = le32_to_cpu(np->tx_ring.orig[i].FlagLen); | |
1019 | else | |
1020 | Flags = le32_to_cpu(np->tx_ring.ex[i].FlagLen); | |
1da177e4 LT |
1021 | |
1022 | dprintk(KERN_DEBUG "%s: nv_tx_done: looking at packet %d, Flags 0x%x.\n", | |
1023 | dev->name, np->nic_tx, Flags); | |
1024 | if (Flags & NV_TX_VALID) | |
1025 | break; | |
1026 | if (np->desc_ver == DESC_VER_1) { | |
1027 | if (Flags & (NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION| | |
1028 | NV_TX_UNDERFLOW|NV_TX_ERROR)) { | |
1029 | if (Flags & NV_TX_UNDERFLOW) | |
1030 | np->stats.tx_fifo_errors++; | |
1031 | if (Flags & NV_TX_CARRIERLOST) | |
1032 | np->stats.tx_carrier_errors++; | |
1033 | np->stats.tx_errors++; | |
1034 | } else { | |
1035 | np->stats.tx_packets++; | |
1036 | np->stats.tx_bytes += np->tx_skbuff[i]->len; | |
1037 | } | |
1038 | } else { | |
1039 | if (Flags & (NV_TX2_RETRYERROR|NV_TX2_CARRIERLOST|NV_TX2_LATECOLLISION| | |
1040 | NV_TX2_UNDERFLOW|NV_TX2_ERROR)) { | |
1041 | if (Flags & NV_TX2_UNDERFLOW) | |
1042 | np->stats.tx_fifo_errors++; | |
1043 | if (Flags & NV_TX2_CARRIERLOST) | |
1044 | np->stats.tx_carrier_errors++; | |
1045 | np->stats.tx_errors++; | |
1046 | } else { | |
1047 | np->stats.tx_packets++; | |
1048 | np->stats.tx_bytes += np->tx_skbuff[i]->len; | |
1049 | } | |
1050 | } | |
1051 | pci_unmap_single(np->pci_dev, np->tx_dma[i], | |
1052 | np->tx_skbuff[i]->len, | |
1053 | PCI_DMA_TODEVICE); | |
1054 | dev_kfree_skb_irq(np->tx_skbuff[i]); | |
1055 | np->tx_skbuff[i] = NULL; | |
1056 | np->nic_tx++; | |
1057 | } | |
1058 | if (np->next_tx - np->nic_tx < TX_LIMIT_START) | |
1059 | netif_wake_queue(dev); | |
1060 | } | |
1061 | ||
1062 | /* | |
1063 | * nv_tx_timeout: dev->tx_timeout function | |
1064 | * Called with dev->xmit_lock held. | |
1065 | */ | |
1066 | static void nv_tx_timeout(struct net_device *dev) | |
1067 | { | |
1068 | struct fe_priv *np = get_nvpriv(dev); | |
1069 | u8 __iomem *base = get_hwbase(dev); | |
1070 | ||
c2dba06d | 1071 | printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, |
1da177e4 LT |
1072 | readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK); |
1073 | ||
c2dba06d MS |
1074 | { |
1075 | int i; | |
1076 | ||
1077 | printk(KERN_INFO "%s: Ring at %lx: next %d nic %d\n", | |
1078 | dev->name, (unsigned long)np->ring_addr, | |
1079 | np->next_tx, np->nic_tx); | |
1080 | printk(KERN_INFO "%s: Dumping tx registers\n", dev->name); | |
1081 | for (i=0;i<0x400;i+= 32) { | |
1082 | printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
1083 | i, | |
1084 | readl(base + i + 0), readl(base + i + 4), | |
1085 | readl(base + i + 8), readl(base + i + 12), | |
1086 | readl(base + i + 16), readl(base + i + 20), | |
1087 | readl(base + i + 24), readl(base + i + 28)); | |
1088 | } | |
1089 | printk(KERN_INFO "%s: Dumping tx ring\n", dev->name); | |
1090 | for (i=0;i<TX_RING;i+= 4) { | |
ee73362c MS |
1091 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
1092 | printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n", | |
1093 | i, | |
1094 | le32_to_cpu(np->tx_ring.orig[i].PacketBuffer), | |
1095 | le32_to_cpu(np->tx_ring.orig[i].FlagLen), | |
1096 | le32_to_cpu(np->tx_ring.orig[i+1].PacketBuffer), | |
1097 | le32_to_cpu(np->tx_ring.orig[i+1].FlagLen), | |
1098 | le32_to_cpu(np->tx_ring.orig[i+2].PacketBuffer), | |
1099 | le32_to_cpu(np->tx_ring.orig[i+2].FlagLen), | |
1100 | le32_to_cpu(np->tx_ring.orig[i+3].PacketBuffer), | |
1101 | le32_to_cpu(np->tx_ring.orig[i+3].FlagLen)); | |
1102 | } else { | |
1103 | printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n", | |
1104 | i, | |
1105 | le32_to_cpu(np->tx_ring.ex[i].PacketBufferHigh), | |
1106 | le32_to_cpu(np->tx_ring.ex[i].PacketBufferLow), | |
1107 | le32_to_cpu(np->tx_ring.ex[i].FlagLen), | |
1108 | le32_to_cpu(np->tx_ring.ex[i+1].PacketBufferHigh), | |
1109 | le32_to_cpu(np->tx_ring.ex[i+1].PacketBufferLow), | |
1110 | le32_to_cpu(np->tx_ring.ex[i+1].FlagLen), | |
1111 | le32_to_cpu(np->tx_ring.ex[i+2].PacketBufferHigh), | |
1112 | le32_to_cpu(np->tx_ring.ex[i+2].PacketBufferLow), | |
1113 | le32_to_cpu(np->tx_ring.ex[i+2].FlagLen), | |
1114 | le32_to_cpu(np->tx_ring.ex[i+3].PacketBufferHigh), | |
1115 | le32_to_cpu(np->tx_ring.ex[i+3].PacketBufferLow), | |
1116 | le32_to_cpu(np->tx_ring.ex[i+3].FlagLen)); | |
1117 | } | |
c2dba06d MS |
1118 | } |
1119 | } | |
1120 | ||
1da177e4 LT |
1121 | spin_lock_irq(&np->lock); |
1122 | ||
1123 | /* 1) stop tx engine */ | |
1124 | nv_stop_tx(dev); | |
1125 | ||
1126 | /* 2) check that the packets were not sent already: */ | |
1127 | nv_tx_done(dev); | |
1128 | ||
1129 | /* 3) if there are dead entries: clear everything */ | |
1130 | if (np->next_tx != np->nic_tx) { | |
1131 | printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name); | |
1132 | nv_drain_tx(dev); | |
1133 | np->next_tx = np->nic_tx = 0; | |
ee73362c MS |
1134 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
1135 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); | |
1136 | else | |
1137 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); | |
1da177e4 LT |
1138 | netif_wake_queue(dev); |
1139 | } | |
1140 | ||
1141 | /* 4) restart tx engine */ | |
1142 | nv_start_tx(dev); | |
1143 | spin_unlock_irq(&np->lock); | |
1144 | } | |
1145 | ||
22c6d143 MS |
1146 | /* |
1147 | * Called when the nic notices a mismatch between the actual data len on the | |
1148 | * wire and the len indicated in the 802 header | |
1149 | */ | |
1150 | static int nv_getlen(struct net_device *dev, void *packet, int datalen) | |
1151 | { | |
1152 | int hdrlen; /* length of the 802 header */ | |
1153 | int protolen; /* length as stored in the proto field */ | |
1154 | ||
1155 | /* 1) calculate len according to header */ | |
1156 | if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
1157 | protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto ); | |
1158 | hdrlen = VLAN_HLEN; | |
1159 | } else { | |
1160 | protolen = ntohs( ((struct ethhdr *)packet)->h_proto); | |
1161 | hdrlen = ETH_HLEN; | |
1162 | } | |
1163 | dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n", | |
1164 | dev->name, datalen, protolen, hdrlen); | |
1165 | if (protolen > ETH_DATA_LEN) | |
1166 | return datalen; /* Value in proto field not a len, no checks possible */ | |
1167 | ||
1168 | protolen += hdrlen; | |
1169 | /* consistency checks: */ | |
1170 | if (datalen > ETH_ZLEN) { | |
1171 | if (datalen >= protolen) { | |
1172 | /* more data on wire than in 802 header, trim of | |
1173 | * additional data. | |
1174 | */ | |
1175 | dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n", | |
1176 | dev->name, protolen); | |
1177 | return protolen; | |
1178 | } else { | |
1179 | /* less data on wire than mentioned in header. | |
1180 | * Discard the packet. | |
1181 | */ | |
1182 | dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n", | |
1183 | dev->name); | |
1184 | return -1; | |
1185 | } | |
1186 | } else { | |
1187 | /* short packet. Accept only if 802 values are also short */ | |
1188 | if (protolen > ETH_ZLEN) { | |
1189 | dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n", | |
1190 | dev->name); | |
1191 | return -1; | |
1192 | } | |
1193 | dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n", | |
1194 | dev->name, datalen); | |
1195 | return datalen; | |
1196 | } | |
1197 | } | |
1198 | ||
1da177e4 LT |
1199 | static void nv_rx_process(struct net_device *dev) |
1200 | { | |
1201 | struct fe_priv *np = get_nvpriv(dev); | |
1202 | u32 Flags; | |
1203 | ||
1204 | for (;;) { | |
1205 | struct sk_buff *skb; | |
1206 | int len; | |
1207 | int i; | |
1208 | if (np->cur_rx - np->refill_rx >= RX_RING) | |
1209 | break; /* we scanned the whole ring - do not continue */ | |
1210 | ||
1211 | i = np->cur_rx % RX_RING; | |
ee73362c MS |
1212 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { |
1213 | Flags = le32_to_cpu(np->rx_ring.orig[i].FlagLen); | |
1214 | len = nv_descr_getlength(&np->rx_ring.orig[i], np->desc_ver); | |
1215 | } else { | |
1216 | Flags = le32_to_cpu(np->rx_ring.ex[i].FlagLen); | |
1217 | len = nv_descr_getlength_ex(&np->rx_ring.ex[i], np->desc_ver); | |
1218 | } | |
1da177e4 LT |
1219 | |
1220 | dprintk(KERN_DEBUG "%s: nv_rx_process: looking at packet %d, Flags 0x%x.\n", | |
1221 | dev->name, np->cur_rx, Flags); | |
1222 | ||
1223 | if (Flags & NV_RX_AVAIL) | |
1224 | break; /* still owned by hardware, */ | |
1225 | ||
1226 | /* | |
1227 | * the packet is for us - immediately tear down the pci mapping. | |
1228 | * TODO: check if a prefetch of the first cacheline improves | |
1229 | * the performance. | |
1230 | */ | |
1231 | pci_unmap_single(np->pci_dev, np->rx_dma[i], | |
1232 | np->rx_skbuff[i]->len, | |
1233 | PCI_DMA_FROMDEVICE); | |
1234 | ||
1235 | { | |
1236 | int j; | |
1237 | dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",Flags); | |
1238 | for (j=0; j<64; j++) { | |
1239 | if ((j%16) == 0) | |
1240 | dprintk("\n%03x:", j); | |
1241 | dprintk(" %02x", ((unsigned char*)np->rx_skbuff[i]->data)[j]); | |
1242 | } | |
1243 | dprintk("\n"); | |
1244 | } | |
1245 | /* look at what we actually got: */ | |
1246 | if (np->desc_ver == DESC_VER_1) { | |
1247 | if (!(Flags & NV_RX_DESCRIPTORVALID)) | |
1248 | goto next_pkt; | |
1249 | ||
1250 | if (Flags & NV_RX_MISSEDFRAME) { | |
1251 | np->stats.rx_missed_errors++; | |
1252 | np->stats.rx_errors++; | |
1253 | goto next_pkt; | |
1254 | } | |
22c6d143 | 1255 | if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3)) { |
1da177e4 LT |
1256 | np->stats.rx_errors++; |
1257 | goto next_pkt; | |
1258 | } | |
1259 | if (Flags & NV_RX_CRCERR) { | |
1260 | np->stats.rx_crc_errors++; | |
1261 | np->stats.rx_errors++; | |
1262 | goto next_pkt; | |
1263 | } | |
1264 | if (Flags & NV_RX_OVERFLOW) { | |
1265 | np->stats.rx_over_errors++; | |
1266 | np->stats.rx_errors++; | |
1267 | goto next_pkt; | |
1268 | } | |
22c6d143 MS |
1269 | if (Flags & NV_RX_ERROR4) { |
1270 | len = nv_getlen(dev, np->rx_skbuff[i]->data, len); | |
1271 | if (len < 0) { | |
1da177e4 LT |
1272 | np->stats.rx_errors++; |
1273 | goto next_pkt; | |
1274 | } | |
1275 | } | |
22c6d143 MS |
1276 | /* framing errors are soft errors. */ |
1277 | if (Flags & NV_RX_FRAMINGERR) { | |
1278 | if (Flags & NV_RX_SUBSTRACT1) { | |
1279 | len--; | |
1280 | } | |
1281 | } | |
1da177e4 LT |
1282 | } else { |
1283 | if (!(Flags & NV_RX2_DESCRIPTORVALID)) | |
1284 | goto next_pkt; | |
1285 | ||
22c6d143 | 1286 | if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3)) { |
1da177e4 LT |
1287 | np->stats.rx_errors++; |
1288 | goto next_pkt; | |
1289 | } | |
1290 | if (Flags & NV_RX2_CRCERR) { | |
1291 | np->stats.rx_crc_errors++; | |
1292 | np->stats.rx_errors++; | |
1293 | goto next_pkt; | |
1294 | } | |
1295 | if (Flags & NV_RX2_OVERFLOW) { | |
1296 | np->stats.rx_over_errors++; | |
1297 | np->stats.rx_errors++; | |
1298 | goto next_pkt; | |
1299 | } | |
22c6d143 MS |
1300 | if (Flags & NV_RX2_ERROR4) { |
1301 | len = nv_getlen(dev, np->rx_skbuff[i]->data, len); | |
1302 | if (len < 0) { | |
1da177e4 LT |
1303 | np->stats.rx_errors++; |
1304 | goto next_pkt; | |
1305 | } | |
1306 | } | |
22c6d143 MS |
1307 | /* framing errors are soft errors */ |
1308 | if (Flags & NV_RX2_FRAMINGERR) { | |
1309 | if (Flags & NV_RX2_SUBSTRACT1) { | |
1310 | len--; | |
1311 | } | |
1312 | } | |
1da177e4 LT |
1313 | Flags &= NV_RX2_CHECKSUMMASK; |
1314 | if (Flags == NV_RX2_CHECKSUMOK1 || | |
1315 | Flags == NV_RX2_CHECKSUMOK2 || | |
1316 | Flags == NV_RX2_CHECKSUMOK3) { | |
1317 | dprintk(KERN_DEBUG "%s: hw checksum hit!.\n", dev->name); | |
1318 | np->rx_skbuff[i]->ip_summed = CHECKSUM_UNNECESSARY; | |
1319 | } else { | |
1320 | dprintk(KERN_DEBUG "%s: hwchecksum miss!.\n", dev->name); | |
1321 | } | |
1322 | } | |
1323 | /* got a valid packet - forward it to the network core */ | |
1324 | skb = np->rx_skbuff[i]; | |
1325 | np->rx_skbuff[i] = NULL; | |
1326 | ||
1327 | skb_put(skb, len); | |
1328 | skb->protocol = eth_type_trans(skb, dev); | |
1329 | dprintk(KERN_DEBUG "%s: nv_rx_process: packet %d with %d bytes, proto %d accepted.\n", | |
1330 | dev->name, np->cur_rx, len, skb->protocol); | |
1331 | netif_rx(skb); | |
1332 | dev->last_rx = jiffies; | |
1333 | np->stats.rx_packets++; | |
1334 | np->stats.rx_bytes += len; | |
1335 | next_pkt: | |
1336 | np->cur_rx++; | |
1337 | } | |
1338 | } | |
1339 | ||
d81c0983 MS |
1340 | static void set_bufsize(struct net_device *dev) |
1341 | { | |
1342 | struct fe_priv *np = netdev_priv(dev); | |
1343 | ||
1344 | if (dev->mtu <= ETH_DATA_LEN) | |
1345 | np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS; | |
1346 | else | |
1347 | np->rx_buf_sz = dev->mtu + NV_RX_HEADERS; | |
1348 | } | |
1349 | ||
1da177e4 LT |
1350 | /* |
1351 | * nv_change_mtu: dev->change_mtu function | |
1352 | * Called with dev_base_lock held for read. | |
1353 | */ | |
1354 | static int nv_change_mtu(struct net_device *dev, int new_mtu) | |
1355 | { | |
d81c0983 MS |
1356 | struct fe_priv *np = get_nvpriv(dev); |
1357 | int old_mtu; | |
1358 | ||
1359 | if (new_mtu < 64 || new_mtu > np->pkt_limit) | |
1da177e4 | 1360 | return -EINVAL; |
d81c0983 MS |
1361 | |
1362 | old_mtu = dev->mtu; | |
1da177e4 | 1363 | dev->mtu = new_mtu; |
d81c0983 MS |
1364 | |
1365 | /* return early if the buffer sizes will not change */ | |
1366 | if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN) | |
1367 | return 0; | |
1368 | if (old_mtu == new_mtu) | |
1369 | return 0; | |
1370 | ||
1371 | /* synchronized against open : rtnl_lock() held by caller */ | |
1372 | if (netif_running(dev)) { | |
1373 | u8 *base = get_hwbase(dev); | |
1374 | /* | |
1375 | * It seems that the nic preloads valid ring entries into an | |
1376 | * internal buffer. The procedure for flushing everything is | |
1377 | * guessed, there is probably a simpler approach. | |
1378 | * Changing the MTU is a rare event, it shouldn't matter. | |
1379 | */ | |
1380 | disable_irq(dev->irq); | |
1381 | spin_lock_bh(&dev->xmit_lock); | |
1382 | spin_lock(&np->lock); | |
1383 | /* stop engines */ | |
1384 | nv_stop_rx(dev); | |
1385 | nv_stop_tx(dev); | |
1386 | nv_txrx_reset(dev); | |
1387 | /* drain rx queue */ | |
1388 | nv_drain_rx(dev); | |
1389 | nv_drain_tx(dev); | |
1390 | /* reinit driver view of the rx queue */ | |
1391 | nv_init_rx(dev); | |
1392 | nv_init_tx(dev); | |
1393 | /* alloc new rx buffers */ | |
1394 | set_bufsize(dev); | |
1395 | if (nv_alloc_rx(dev)) { | |
1396 | if (!np->in_shutdown) | |
1397 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
1398 | } | |
1399 | /* reinit nic view of the rx queue */ | |
1400 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
1401 | writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr); | |
ee73362c MS |
1402 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
1403 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); | |
1404 | else | |
1405 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); | |
d81c0983 MS |
1406 | writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT), |
1407 | base + NvRegRingSizes); | |
1408 | pci_push(base); | |
1409 | writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl); | |
1410 | pci_push(base); | |
1411 | ||
1412 | /* restart rx engine */ | |
1413 | nv_start_rx(dev); | |
1414 | nv_start_tx(dev); | |
1415 | spin_unlock(&np->lock); | |
1416 | spin_unlock_bh(&dev->xmit_lock); | |
1417 | enable_irq(dev->irq); | |
1418 | } | |
1da177e4 LT |
1419 | return 0; |
1420 | } | |
1421 | ||
72b31782 MS |
1422 | static void nv_copy_mac_to_hw(struct net_device *dev) |
1423 | { | |
1424 | u8 *base = get_hwbase(dev); | |
1425 | u32 mac[2]; | |
1426 | ||
1427 | mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) + | |
1428 | (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24); | |
1429 | mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8); | |
1430 | ||
1431 | writel(mac[0], base + NvRegMacAddrA); | |
1432 | writel(mac[1], base + NvRegMacAddrB); | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * nv_set_mac_address: dev->set_mac_address function | |
1437 | * Called with rtnl_lock() held. | |
1438 | */ | |
1439 | static int nv_set_mac_address(struct net_device *dev, void *addr) | |
1440 | { | |
1441 | struct fe_priv *np = get_nvpriv(dev); | |
1442 | struct sockaddr *macaddr = (struct sockaddr*)addr; | |
1443 | ||
1444 | if(!is_valid_ether_addr(macaddr->sa_data)) | |
1445 | return -EADDRNOTAVAIL; | |
1446 | ||
1447 | /* synchronized against open : rtnl_lock() held by caller */ | |
1448 | memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN); | |
1449 | ||
1450 | if (netif_running(dev)) { | |
1451 | spin_lock_bh(&dev->xmit_lock); | |
1452 | spin_lock_irq(&np->lock); | |
1453 | ||
1454 | /* stop rx engine */ | |
1455 | nv_stop_rx(dev); | |
1456 | ||
1457 | /* set mac address */ | |
1458 | nv_copy_mac_to_hw(dev); | |
1459 | ||
1460 | /* restart rx engine */ | |
1461 | nv_start_rx(dev); | |
1462 | spin_unlock_irq(&np->lock); | |
1463 | spin_unlock_bh(&dev->xmit_lock); | |
1464 | } else { | |
1465 | nv_copy_mac_to_hw(dev); | |
1466 | } | |
1467 | return 0; | |
1468 | } | |
1469 | ||
1da177e4 LT |
1470 | /* |
1471 | * nv_set_multicast: dev->set_multicast function | |
1472 | * Called with dev->xmit_lock held. | |
1473 | */ | |
1474 | static void nv_set_multicast(struct net_device *dev) | |
1475 | { | |
1476 | struct fe_priv *np = get_nvpriv(dev); | |
1477 | u8 __iomem *base = get_hwbase(dev); | |
1478 | u32 addr[2]; | |
1479 | u32 mask[2]; | |
1480 | u32 pff; | |
1481 | ||
1482 | memset(addr, 0, sizeof(addr)); | |
1483 | memset(mask, 0, sizeof(mask)); | |
1484 | ||
1485 | if (dev->flags & IFF_PROMISC) { | |
1486 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name); | |
1487 | pff = NVREG_PFF_PROMISC; | |
1488 | } else { | |
1489 | pff = NVREG_PFF_MYADDR; | |
1490 | ||
1491 | if (dev->flags & IFF_ALLMULTI || dev->mc_list) { | |
1492 | u32 alwaysOff[2]; | |
1493 | u32 alwaysOn[2]; | |
1494 | ||
1495 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff; | |
1496 | if (dev->flags & IFF_ALLMULTI) { | |
1497 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0; | |
1498 | } else { | |
1499 | struct dev_mc_list *walk; | |
1500 | ||
1501 | walk = dev->mc_list; | |
1502 | while (walk != NULL) { | |
1503 | u32 a, b; | |
1504 | a = le32_to_cpu(*(u32 *) walk->dmi_addr); | |
1505 | b = le16_to_cpu(*(u16 *) (&walk->dmi_addr[4])); | |
1506 | alwaysOn[0] &= a; | |
1507 | alwaysOff[0] &= ~a; | |
1508 | alwaysOn[1] &= b; | |
1509 | alwaysOff[1] &= ~b; | |
1510 | walk = walk->next; | |
1511 | } | |
1512 | } | |
1513 | addr[0] = alwaysOn[0]; | |
1514 | addr[1] = alwaysOn[1]; | |
1515 | mask[0] = alwaysOn[0] | alwaysOff[0]; | |
1516 | mask[1] = alwaysOn[1] | alwaysOff[1]; | |
1517 | } | |
1518 | } | |
1519 | addr[0] |= NVREG_MCASTADDRA_FORCE; | |
1520 | pff |= NVREG_PFF_ALWAYS; | |
1521 | spin_lock_irq(&np->lock); | |
1522 | nv_stop_rx(dev); | |
1523 | writel(addr[0], base + NvRegMulticastAddrA); | |
1524 | writel(addr[1], base + NvRegMulticastAddrB); | |
1525 | writel(mask[0], base + NvRegMulticastMaskA); | |
1526 | writel(mask[1], base + NvRegMulticastMaskB); | |
1527 | writel(pff, base + NvRegPacketFilterFlags); | |
1528 | dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n", | |
1529 | dev->name); | |
1530 | nv_start_rx(dev); | |
1531 | spin_unlock_irq(&np->lock); | |
1532 | } | |
1533 | ||
1534 | static int nv_update_linkspeed(struct net_device *dev) | |
1535 | { | |
1536 | struct fe_priv *np = get_nvpriv(dev); | |
1537 | u8 __iomem *base = get_hwbase(dev); | |
1538 | int adv, lpa; | |
1539 | int newls = np->linkspeed; | |
1540 | int newdup = np->duplex; | |
1541 | int mii_status; | |
1542 | int retval = 0; | |
1543 | u32 control_1000, status_1000, phyreg; | |
1544 | ||
1545 | /* BMSR_LSTATUS is latched, read it twice: | |
1546 | * we want the current value. | |
1547 | */ | |
1548 | mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
1549 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
1550 | ||
1551 | if (!(mii_status & BMSR_LSTATUS)) { | |
1552 | dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n", | |
1553 | dev->name); | |
1554 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1555 | newdup = 0; | |
1556 | retval = 0; | |
1557 | goto set_speed; | |
1558 | } | |
1559 | ||
1560 | if (np->autoneg == 0) { | |
1561 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n", | |
1562 | dev->name, np->fixed_mode); | |
1563 | if (np->fixed_mode & LPA_100FULL) { | |
1564 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
1565 | newdup = 1; | |
1566 | } else if (np->fixed_mode & LPA_100HALF) { | |
1567 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
1568 | newdup = 0; | |
1569 | } else if (np->fixed_mode & LPA_10FULL) { | |
1570 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1571 | newdup = 1; | |
1572 | } else { | |
1573 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1574 | newdup = 0; | |
1575 | } | |
1576 | retval = 1; | |
1577 | goto set_speed; | |
1578 | } | |
1579 | /* check auto negotiation is complete */ | |
1580 | if (!(mii_status & BMSR_ANEGCOMPLETE)) { | |
1581 | /* still in autonegotiation - configure nic for 10 MBit HD and wait. */ | |
1582 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1583 | newdup = 0; | |
1584 | retval = 0; | |
1585 | dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name); | |
1586 | goto set_speed; | |
1587 | } | |
1588 | ||
1589 | retval = 1; | |
1590 | if (np->gigabit == PHY_GIGABIT) { | |
1591 | control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ); | |
1592 | status_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_SR, MII_READ); | |
1593 | ||
1594 | if ((control_1000 & ADVERTISE_1000FULL) && | |
1595 | (status_1000 & LPA_1000FULL)) { | |
1596 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n", | |
1597 | dev->name); | |
1598 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000; | |
1599 | newdup = 1; | |
1600 | goto set_speed; | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
1605 | lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ); | |
1606 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n", | |
1607 | dev->name, adv, lpa); | |
1608 | ||
1609 | /* FIXME: handle parallel detection properly */ | |
1610 | lpa = lpa & adv; | |
1611 | if (lpa & LPA_100FULL) { | |
1612 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
1613 | newdup = 1; | |
1614 | } else if (lpa & LPA_100HALF) { | |
1615 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
1616 | newdup = 0; | |
1617 | } else if (lpa & LPA_10FULL) { | |
1618 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1619 | newdup = 1; | |
1620 | } else if (lpa & LPA_10HALF) { | |
1621 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1622 | newdup = 0; | |
1623 | } else { | |
1624 | dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, lpa); | |
1625 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
1626 | newdup = 0; | |
1627 | } | |
1628 | ||
1629 | set_speed: | |
1630 | if (np->duplex == newdup && np->linkspeed == newls) | |
1631 | return retval; | |
1632 | ||
1633 | dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n", | |
1634 | dev->name, np->linkspeed, np->duplex, newls, newdup); | |
1635 | ||
1636 | np->duplex = newdup; | |
1637 | np->linkspeed = newls; | |
1638 | ||
1639 | if (np->gigabit == PHY_GIGABIT) { | |
1640 | phyreg = readl(base + NvRegRandomSeed); | |
1641 | phyreg &= ~(0x3FF00); | |
1642 | if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) | |
1643 | phyreg |= NVREG_RNDSEED_FORCE3; | |
1644 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100) | |
1645 | phyreg |= NVREG_RNDSEED_FORCE2; | |
1646 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000) | |
1647 | phyreg |= NVREG_RNDSEED_FORCE; | |
1648 | writel(phyreg, base + NvRegRandomSeed); | |
1649 | } | |
1650 | ||
1651 | phyreg = readl(base + NvRegPhyInterface); | |
1652 | phyreg &= ~(PHY_HALF|PHY_100|PHY_1000); | |
1653 | if (np->duplex == 0) | |
1654 | phyreg |= PHY_HALF; | |
1655 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100) | |
1656 | phyreg |= PHY_100; | |
1657 | else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) | |
1658 | phyreg |= PHY_1000; | |
1659 | writel(phyreg, base + NvRegPhyInterface); | |
1660 | ||
1661 | writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD), | |
1662 | base + NvRegMisc1); | |
1663 | pci_push(base); | |
1664 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
1665 | pci_push(base); | |
1666 | ||
1667 | return retval; | |
1668 | } | |
1669 | ||
1670 | static void nv_linkchange(struct net_device *dev) | |
1671 | { | |
1672 | if (nv_update_linkspeed(dev)) { | |
1673 | if (netif_carrier_ok(dev)) { | |
1674 | nv_stop_rx(dev); | |
1675 | } else { | |
1676 | netif_carrier_on(dev); | |
1677 | printk(KERN_INFO "%s: link up.\n", dev->name); | |
1678 | } | |
1679 | nv_start_rx(dev); | |
1680 | } else { | |
1681 | if (netif_carrier_ok(dev)) { | |
1682 | netif_carrier_off(dev); | |
1683 | printk(KERN_INFO "%s: link down.\n", dev->name); | |
1684 | nv_stop_rx(dev); | |
1685 | } | |
1686 | } | |
1687 | } | |
1688 | ||
1689 | static void nv_link_irq(struct net_device *dev) | |
1690 | { | |
1691 | u8 __iomem *base = get_hwbase(dev); | |
1692 | u32 miistat; | |
1693 | ||
1694 | miistat = readl(base + NvRegMIIStatus); | |
1695 | writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); | |
1696 | dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat); | |
1697 | ||
1698 | if (miistat & (NVREG_MIISTAT_LINKCHANGE)) | |
1699 | nv_linkchange(dev); | |
1700 | dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name); | |
1701 | } | |
1702 | ||
1703 | static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs) | |
1704 | { | |
1705 | struct net_device *dev = (struct net_device *) data; | |
1706 | struct fe_priv *np = get_nvpriv(dev); | |
1707 | u8 __iomem *base = get_hwbase(dev); | |
1708 | u32 events; | |
1709 | int i; | |
1710 | ||
1711 | dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name); | |
1712 | ||
1713 | for (i=0; ; i++) { | |
1714 | events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; | |
1715 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
1716 | pci_push(base); | |
1717 | dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); | |
1718 | if (!(events & np->irqmask)) | |
1719 | break; | |
1720 | ||
c2dba06d | 1721 | if (events & (NVREG_IRQ_TX1|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_ERROR|NVREG_IRQ_TX_ERR)) { |
1da177e4 LT |
1722 | spin_lock(&np->lock); |
1723 | nv_tx_done(dev); | |
1724 | spin_unlock(&np->lock); | |
1725 | } | |
1726 | ||
1727 | if (events & (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF)) { | |
1728 | nv_rx_process(dev); | |
1729 | if (nv_alloc_rx(dev)) { | |
1730 | spin_lock(&np->lock); | |
1731 | if (!np->in_shutdown) | |
1732 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
1733 | spin_unlock(&np->lock); | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | if (events & NVREG_IRQ_LINK) { | |
1738 | spin_lock(&np->lock); | |
1739 | nv_link_irq(dev); | |
1740 | spin_unlock(&np->lock); | |
1741 | } | |
1742 | if (np->need_linktimer && time_after(jiffies, np->link_timeout)) { | |
1743 | spin_lock(&np->lock); | |
1744 | nv_linkchange(dev); | |
1745 | spin_unlock(&np->lock); | |
1746 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
1747 | } | |
1748 | if (events & (NVREG_IRQ_TX_ERR)) { | |
1749 | dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n", | |
1750 | dev->name, events); | |
1751 | } | |
1752 | if (events & (NVREG_IRQ_UNKNOWN)) { | |
1753 | printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n", | |
1754 | dev->name, events); | |
1755 | } | |
1756 | if (i > max_interrupt_work) { | |
1757 | spin_lock(&np->lock); | |
1758 | /* disable interrupts on the nic */ | |
1759 | writel(0, base + NvRegIrqMask); | |
1760 | pci_push(base); | |
1761 | ||
1762 | if (!np->in_shutdown) | |
1763 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
1764 | printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i); | |
1765 | spin_unlock(&np->lock); | |
1766 | break; | |
1767 | } | |
1768 | ||
1769 | } | |
1770 | dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name); | |
1771 | ||
1772 | return IRQ_RETVAL(i); | |
1773 | } | |
1774 | ||
1775 | static void nv_do_nic_poll(unsigned long data) | |
1776 | { | |
1777 | struct net_device *dev = (struct net_device *) data; | |
1778 | struct fe_priv *np = get_nvpriv(dev); | |
1779 | u8 __iomem *base = get_hwbase(dev); | |
1780 | ||
1781 | disable_irq(dev->irq); | |
1782 | /* FIXME: Do we need synchronize_irq(dev->irq) here? */ | |
1783 | /* | |
1784 | * reenable interrupts on the nic, we have to do this before calling | |
1785 | * nv_nic_irq because that may decide to do otherwise | |
1786 | */ | |
1787 | writel(np->irqmask, base + NvRegIrqMask); | |
1788 | pci_push(base); | |
1789 | nv_nic_irq((int) 0, (void *) data, (struct pt_regs *) NULL); | |
1790 | enable_irq(dev->irq); | |
1791 | } | |
1792 | ||
2918c35d MS |
1793 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1794 | static void nv_poll_controller(struct net_device *dev) | |
1795 | { | |
1796 | nv_do_nic_poll((unsigned long) dev); | |
1797 | } | |
1798 | #endif | |
1799 | ||
1da177e4 LT |
1800 | static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
1801 | { | |
1802 | struct fe_priv *np = get_nvpriv(dev); | |
1803 | strcpy(info->driver, "forcedeth"); | |
1804 | strcpy(info->version, FORCEDETH_VERSION); | |
1805 | strcpy(info->bus_info, pci_name(np->pci_dev)); | |
1806 | } | |
1807 | ||
1808 | static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
1809 | { | |
1810 | struct fe_priv *np = get_nvpriv(dev); | |
1811 | wolinfo->supported = WAKE_MAGIC; | |
1812 | ||
1813 | spin_lock_irq(&np->lock); | |
1814 | if (np->wolenabled) | |
1815 | wolinfo->wolopts = WAKE_MAGIC; | |
1816 | spin_unlock_irq(&np->lock); | |
1817 | } | |
1818 | ||
1819 | static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
1820 | { | |
1821 | struct fe_priv *np = get_nvpriv(dev); | |
1822 | u8 __iomem *base = get_hwbase(dev); | |
1823 | ||
1824 | spin_lock_irq(&np->lock); | |
1825 | if (wolinfo->wolopts == 0) { | |
1826 | writel(0, base + NvRegWakeUpFlags); | |
1827 | np->wolenabled = 0; | |
1828 | } | |
1829 | if (wolinfo->wolopts & WAKE_MAGIC) { | |
1830 | writel(NVREG_WAKEUPFLAGS_ENABLE, base + NvRegWakeUpFlags); | |
1831 | np->wolenabled = 1; | |
1832 | } | |
1833 | spin_unlock_irq(&np->lock); | |
1834 | return 0; | |
1835 | } | |
1836 | ||
1837 | static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1838 | { | |
1839 | struct fe_priv *np = netdev_priv(dev); | |
1840 | int adv; | |
1841 | ||
1842 | spin_lock_irq(&np->lock); | |
1843 | ecmd->port = PORT_MII; | |
1844 | if (!netif_running(dev)) { | |
1845 | /* We do not track link speed / duplex setting if the | |
1846 | * interface is disabled. Force a link check */ | |
1847 | nv_update_linkspeed(dev); | |
1848 | } | |
1849 | switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) { | |
1850 | case NVREG_LINKSPEED_10: | |
1851 | ecmd->speed = SPEED_10; | |
1852 | break; | |
1853 | case NVREG_LINKSPEED_100: | |
1854 | ecmd->speed = SPEED_100; | |
1855 | break; | |
1856 | case NVREG_LINKSPEED_1000: | |
1857 | ecmd->speed = SPEED_1000; | |
1858 | break; | |
1859 | } | |
1860 | ecmd->duplex = DUPLEX_HALF; | |
1861 | if (np->duplex) | |
1862 | ecmd->duplex = DUPLEX_FULL; | |
1863 | ||
1864 | ecmd->autoneg = np->autoneg; | |
1865 | ||
1866 | ecmd->advertising = ADVERTISED_MII; | |
1867 | if (np->autoneg) { | |
1868 | ecmd->advertising |= ADVERTISED_Autoneg; | |
1869 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
1870 | } else { | |
1871 | adv = np->fixed_mode; | |
1872 | } | |
1873 | if (adv & ADVERTISE_10HALF) | |
1874 | ecmd->advertising |= ADVERTISED_10baseT_Half; | |
1875 | if (adv & ADVERTISE_10FULL) | |
1876 | ecmd->advertising |= ADVERTISED_10baseT_Full; | |
1877 | if (adv & ADVERTISE_100HALF) | |
1878 | ecmd->advertising |= ADVERTISED_100baseT_Half; | |
1879 | if (adv & ADVERTISE_100FULL) | |
1880 | ecmd->advertising |= ADVERTISED_100baseT_Full; | |
1881 | if (np->autoneg && np->gigabit == PHY_GIGABIT) { | |
1882 | adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ); | |
1883 | if (adv & ADVERTISE_1000FULL) | |
1884 | ecmd->advertising |= ADVERTISED_1000baseT_Full; | |
1885 | } | |
1886 | ||
1887 | ecmd->supported = (SUPPORTED_Autoneg | | |
1888 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | | |
1889 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | | |
1890 | SUPPORTED_MII); | |
1891 | if (np->gigabit == PHY_GIGABIT) | |
1892 | ecmd->supported |= SUPPORTED_1000baseT_Full; | |
1893 | ||
1894 | ecmd->phy_address = np->phyaddr; | |
1895 | ecmd->transceiver = XCVR_EXTERNAL; | |
1896 | ||
1897 | /* ignore maxtxpkt, maxrxpkt for now */ | |
1898 | spin_unlock_irq(&np->lock); | |
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1903 | { | |
1904 | struct fe_priv *np = netdev_priv(dev); | |
1905 | ||
1906 | if (ecmd->port != PORT_MII) | |
1907 | return -EINVAL; | |
1908 | if (ecmd->transceiver != XCVR_EXTERNAL) | |
1909 | return -EINVAL; | |
1910 | if (ecmd->phy_address != np->phyaddr) { | |
1911 | /* TODO: support switching between multiple phys. Should be | |
1912 | * trivial, but not enabled due to lack of test hardware. */ | |
1913 | return -EINVAL; | |
1914 | } | |
1915 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
1916 | u32 mask; | |
1917 | ||
1918 | mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | | |
1919 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; | |
1920 | if (np->gigabit == PHY_GIGABIT) | |
1921 | mask |= ADVERTISED_1000baseT_Full; | |
1922 | ||
1923 | if ((ecmd->advertising & mask) == 0) | |
1924 | return -EINVAL; | |
1925 | ||
1926 | } else if (ecmd->autoneg == AUTONEG_DISABLE) { | |
1927 | /* Note: autonegotiation disable, speed 1000 intentionally | |
1928 | * forbidden - noone should need that. */ | |
1929 | ||
1930 | if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100) | |
1931 | return -EINVAL; | |
1932 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
1933 | return -EINVAL; | |
1934 | } else { | |
1935 | return -EINVAL; | |
1936 | } | |
1937 | ||
1938 | spin_lock_irq(&np->lock); | |
1939 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
1940 | int adv, bmcr; | |
1941 | ||
1942 | np->autoneg = 1; | |
1943 | ||
1944 | /* advertise only what has been requested */ | |
1945 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
1946 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); | |
1947 | if (ecmd->advertising & ADVERTISED_10baseT_Half) | |
1948 | adv |= ADVERTISE_10HALF; | |
1949 | if (ecmd->advertising & ADVERTISED_10baseT_Full) | |
1950 | adv |= ADVERTISE_10FULL; | |
1951 | if (ecmd->advertising & ADVERTISED_100baseT_Half) | |
1952 | adv |= ADVERTISE_100HALF; | |
1953 | if (ecmd->advertising & ADVERTISED_100baseT_Full) | |
1954 | adv |= ADVERTISE_100FULL; | |
1955 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); | |
1956 | ||
1957 | if (np->gigabit == PHY_GIGABIT) { | |
1958 | adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ); | |
1959 | adv &= ~ADVERTISE_1000FULL; | |
1960 | if (ecmd->advertising & ADVERTISED_1000baseT_Full) | |
1961 | adv |= ADVERTISE_1000FULL; | |
1962 | mii_rw(dev, np->phyaddr, MII_1000BT_CR, adv); | |
1963 | } | |
1964 | ||
1965 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
1966 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1967 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
1968 | ||
1969 | } else { | |
1970 | int adv, bmcr; | |
1971 | ||
1972 | np->autoneg = 0; | |
1973 | ||
1974 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
1975 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); | |
1976 | if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF) | |
1977 | adv |= ADVERTISE_10HALF; | |
1978 | if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL) | |
1979 | adv |= ADVERTISE_10FULL; | |
1980 | if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF) | |
1981 | adv |= ADVERTISE_100HALF; | |
1982 | if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL) | |
1983 | adv |= ADVERTISE_100FULL; | |
1984 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); | |
1985 | np->fixed_mode = adv; | |
1986 | ||
1987 | if (np->gigabit == PHY_GIGABIT) { | |
1988 | adv = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ); | |
1989 | adv &= ~ADVERTISE_1000FULL; | |
1990 | mii_rw(dev, np->phyaddr, MII_1000BT_CR, adv); | |
1991 | } | |
1992 | ||
1993 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
1994 | bmcr |= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_FULLDPLX); | |
1995 | if (adv & (ADVERTISE_10FULL|ADVERTISE_100FULL)) | |
1996 | bmcr |= BMCR_FULLDPLX; | |
1997 | if (adv & (ADVERTISE_100HALF|ADVERTISE_100FULL)) | |
1998 | bmcr |= BMCR_SPEED100; | |
1999 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
2000 | ||
2001 | if (netif_running(dev)) { | |
2002 | /* Wait a bit and then reconfigure the nic. */ | |
2003 | udelay(10); | |
2004 | nv_linkchange(dev); | |
2005 | } | |
2006 | } | |
2007 | spin_unlock_irq(&np->lock); | |
2008 | ||
2009 | return 0; | |
2010 | } | |
2011 | ||
dc8216c1 MS |
2012 | #define FORCEDETH_REGS_VER 1 |
2013 | #define FORCEDETH_REGS_SIZE 0x400 /* 256 32-bit registers */ | |
2014 | ||
2015 | static int nv_get_regs_len(struct net_device *dev) | |
2016 | { | |
2017 | return FORCEDETH_REGS_SIZE; | |
2018 | } | |
2019 | ||
2020 | static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) | |
2021 | { | |
2022 | struct fe_priv *np = get_nvpriv(dev); | |
2023 | u8 __iomem *base = get_hwbase(dev); | |
2024 | u32 *rbuf = buf; | |
2025 | int i; | |
2026 | ||
2027 | regs->version = FORCEDETH_REGS_VER; | |
2028 | spin_lock_irq(&np->lock); | |
2029 | for (i=0;i<FORCEDETH_REGS_SIZE/sizeof(u32);i++) | |
2030 | rbuf[i] = readl(base + i*sizeof(u32)); | |
2031 | spin_unlock_irq(&np->lock); | |
2032 | } | |
2033 | ||
2034 | static int nv_nway_reset(struct net_device *dev) | |
2035 | { | |
2036 | struct fe_priv *np = get_nvpriv(dev); | |
2037 | int ret; | |
2038 | ||
2039 | spin_lock_irq(&np->lock); | |
2040 | if (np->autoneg) { | |
2041 | int bmcr; | |
2042 | ||
2043 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
2044 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
2045 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
2046 | ||
2047 | ret = 0; | |
2048 | } else { | |
2049 | ret = -EINVAL; | |
2050 | } | |
2051 | spin_unlock_irq(&np->lock); | |
2052 | ||
2053 | return ret; | |
2054 | } | |
2055 | ||
1da177e4 LT |
2056 | static struct ethtool_ops ops = { |
2057 | .get_drvinfo = nv_get_drvinfo, | |
2058 | .get_link = ethtool_op_get_link, | |
2059 | .get_wol = nv_get_wol, | |
2060 | .set_wol = nv_set_wol, | |
2061 | .get_settings = nv_get_settings, | |
2062 | .set_settings = nv_set_settings, | |
dc8216c1 MS |
2063 | .get_regs_len = nv_get_regs_len, |
2064 | .get_regs = nv_get_regs, | |
2065 | .nway_reset = nv_nway_reset, | |
1da177e4 LT |
2066 | }; |
2067 | ||
2068 | static int nv_open(struct net_device *dev) | |
2069 | { | |
2070 | struct fe_priv *np = get_nvpriv(dev); | |
2071 | u8 __iomem *base = get_hwbase(dev); | |
2072 | int ret, oom, i; | |
2073 | ||
2074 | dprintk(KERN_DEBUG "nv_open: begin\n"); | |
2075 | ||
2076 | /* 1) erase previous misconfiguration */ | |
2077 | /* 4.1-1: stop adapter: ignored, 4.3 seems to be overkill */ | |
2078 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); | |
2079 | writel(0, base + NvRegMulticastAddrB); | |
2080 | writel(0, base + NvRegMulticastMaskA); | |
2081 | writel(0, base + NvRegMulticastMaskB); | |
2082 | writel(0, base + NvRegPacketFilterFlags); | |
2083 | ||
2084 | writel(0, base + NvRegTransmitterControl); | |
2085 | writel(0, base + NvRegReceiverControl); | |
2086 | ||
2087 | writel(0, base + NvRegAdapterControl); | |
2088 | ||
2089 | /* 2) initialize descriptor rings */ | |
d81c0983 | 2090 | set_bufsize(dev); |
1da177e4 LT |
2091 | oom = nv_init_ring(dev); |
2092 | ||
2093 | writel(0, base + NvRegLinkSpeed); | |
2094 | writel(0, base + NvRegUnknownTransmitterReg); | |
2095 | nv_txrx_reset(dev); | |
2096 | writel(0, base + NvRegUnknownSetupReg6); | |
2097 | ||
2098 | np->in_shutdown = 0; | |
2099 | ||
2100 | /* 3) set mac address */ | |
72b31782 | 2101 | nv_copy_mac_to_hw(dev); |
1da177e4 LT |
2102 | |
2103 | /* 4) give hw rings */ | |
2104 | writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr); | |
ee73362c MS |
2105 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
2106 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); | |
2107 | else | |
2108 | writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); | |
1da177e4 LT |
2109 | writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT), |
2110 | base + NvRegRingSizes); | |
2111 | ||
2112 | /* 5) continue setup */ | |
2113 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
2114 | writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3); | |
2115 | writel(np->desc_ver, base + NvRegTxRxControl); | |
2116 | pci_push(base); | |
2117 | writel(NVREG_TXRXCTL_BIT1|np->desc_ver, base + NvRegTxRxControl); | |
2118 | reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31, | |
2119 | NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX, | |
2120 | KERN_INFO "open: SetupReg5, Bit 31 remained off\n"); | |
2121 | ||
2122 | writel(0, base + NvRegUnknownSetupReg4); | |
2123 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
2124 | writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus); | |
2125 | ||
2126 | /* 6) continue setup */ | |
2127 | writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1); | |
2128 | writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus); | |
2129 | writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags); | |
d81c0983 | 2130 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); |
1da177e4 LT |
2131 | |
2132 | writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus); | |
2133 | get_random_bytes(&i, sizeof(i)); | |
2134 | writel(NVREG_RNDSEED_FORCE | (i&NVREG_RNDSEED_MASK), base + NvRegRandomSeed); | |
2135 | writel(NVREG_UNKSETUP1_VAL, base + NvRegUnknownSetupReg1); | |
2136 | writel(NVREG_UNKSETUP2_VAL, base + NvRegUnknownSetupReg2); | |
2137 | writel(NVREG_POLL_DEFAULT, base + NvRegPollingInterval); | |
2138 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); | |
2139 | writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING, | |
2140 | base + NvRegAdapterControl); | |
2141 | writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed); | |
2142 | writel(NVREG_UNKSETUP4_VAL, base + NvRegUnknownSetupReg4); | |
2143 | writel(NVREG_WAKEUPFLAGS_VAL, base + NvRegWakeUpFlags); | |
2144 | ||
2145 | i = readl(base + NvRegPowerState); | |
2146 | if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0) | |
2147 | writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState); | |
2148 | ||
2149 | pci_push(base); | |
2150 | udelay(10); | |
2151 | writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState); | |
2152 | ||
2153 | writel(0, base + NvRegIrqMask); | |
2154 | pci_push(base); | |
2155 | writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus); | |
2156 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
2157 | pci_push(base); | |
2158 | ||
2159 | ret = request_irq(dev->irq, &nv_nic_irq, SA_SHIRQ, dev->name, dev); | |
2160 | if (ret) | |
2161 | goto out_drain; | |
2162 | ||
2163 | /* ask for interrupts */ | |
2164 | writel(np->irqmask, base + NvRegIrqMask); | |
2165 | ||
2166 | spin_lock_irq(&np->lock); | |
2167 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); | |
2168 | writel(0, base + NvRegMulticastAddrB); | |
2169 | writel(0, base + NvRegMulticastMaskA); | |
2170 | writel(0, base + NvRegMulticastMaskB); | |
2171 | writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); | |
2172 | /* One manual link speed update: Interrupts are enabled, future link | |
2173 | * speed changes cause interrupts and are handled by nv_link_irq(). | |
2174 | */ | |
2175 | { | |
2176 | u32 miistat; | |
2177 | miistat = readl(base + NvRegMIIStatus); | |
2178 | writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); | |
2179 | dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat); | |
2180 | } | |
2181 | ret = nv_update_linkspeed(dev); | |
2182 | nv_start_rx(dev); | |
2183 | nv_start_tx(dev); | |
2184 | netif_start_queue(dev); | |
2185 | if (ret) { | |
2186 | netif_carrier_on(dev); | |
2187 | } else { | |
2188 | printk("%s: no link during initialization.\n", dev->name); | |
2189 | netif_carrier_off(dev); | |
2190 | } | |
2191 | if (oom) | |
2192 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
2193 | spin_unlock_irq(&np->lock); | |
2194 | ||
2195 | return 0; | |
2196 | out_drain: | |
2197 | drain_ring(dev); | |
2198 | return ret; | |
2199 | } | |
2200 | ||
2201 | static int nv_close(struct net_device *dev) | |
2202 | { | |
2203 | struct fe_priv *np = get_nvpriv(dev); | |
2204 | u8 __iomem *base; | |
2205 | ||
2206 | spin_lock_irq(&np->lock); | |
2207 | np->in_shutdown = 1; | |
2208 | spin_unlock_irq(&np->lock); | |
2209 | synchronize_irq(dev->irq); | |
2210 | ||
2211 | del_timer_sync(&np->oom_kick); | |
2212 | del_timer_sync(&np->nic_poll); | |
2213 | ||
2214 | netif_stop_queue(dev); | |
2215 | spin_lock_irq(&np->lock); | |
2216 | nv_stop_tx(dev); | |
2217 | nv_stop_rx(dev); | |
2218 | nv_txrx_reset(dev); | |
2219 | ||
2220 | /* disable interrupts on the nic or we will lock up */ | |
2221 | base = get_hwbase(dev); | |
2222 | writel(0, base + NvRegIrqMask); | |
2223 | pci_push(base); | |
2224 | dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name); | |
2225 | ||
2226 | spin_unlock_irq(&np->lock); | |
2227 | ||
2228 | free_irq(dev->irq, dev); | |
2229 | ||
2230 | drain_ring(dev); | |
2231 | ||
2232 | if (np->wolenabled) | |
2233 | nv_start_rx(dev); | |
2234 | ||
b3df9f81 MS |
2235 | /* special op: write back the misordered MAC address - otherwise |
2236 | * the next nv_probe would see a wrong address. | |
2237 | */ | |
2238 | writel(np->orig_mac[0], base + NvRegMacAddrA); | |
2239 | writel(np->orig_mac[1], base + NvRegMacAddrB); | |
2240 | ||
1da177e4 LT |
2241 | /* FIXME: power down nic */ |
2242 | ||
2243 | return 0; | |
2244 | } | |
2245 | ||
2246 | static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) | |
2247 | { | |
2248 | struct net_device *dev; | |
2249 | struct fe_priv *np; | |
2250 | unsigned long addr; | |
2251 | u8 __iomem *base; | |
2252 | int err, i; | |
2253 | ||
2254 | dev = alloc_etherdev(sizeof(struct fe_priv)); | |
2255 | err = -ENOMEM; | |
2256 | if (!dev) | |
2257 | goto out; | |
2258 | ||
2259 | np = get_nvpriv(dev); | |
2260 | np->pci_dev = pci_dev; | |
2261 | spin_lock_init(&np->lock); | |
2262 | SET_MODULE_OWNER(dev); | |
2263 | SET_NETDEV_DEV(dev, &pci_dev->dev); | |
2264 | ||
2265 | init_timer(&np->oom_kick); | |
2266 | np->oom_kick.data = (unsigned long) dev; | |
2267 | np->oom_kick.function = &nv_do_rx_refill; /* timer handler */ | |
2268 | init_timer(&np->nic_poll); | |
2269 | np->nic_poll.data = (unsigned long) dev; | |
2270 | np->nic_poll.function = &nv_do_nic_poll; /* timer handler */ | |
2271 | ||
2272 | err = pci_enable_device(pci_dev); | |
2273 | if (err) { | |
2274 | printk(KERN_INFO "forcedeth: pci_enable_dev failed (%d) for device %s\n", | |
2275 | err, pci_name(pci_dev)); | |
2276 | goto out_free; | |
2277 | } | |
2278 | ||
2279 | pci_set_master(pci_dev); | |
2280 | ||
2281 | err = pci_request_regions(pci_dev, DRV_NAME); | |
2282 | if (err < 0) | |
2283 | goto out_disable; | |
2284 | ||
2285 | err = -EINVAL; | |
2286 | addr = 0; | |
2287 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
2288 | dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n", | |
2289 | pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i), | |
2290 | pci_resource_len(pci_dev, i), | |
2291 | pci_resource_flags(pci_dev, i)); | |
2292 | if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM && | |
2293 | pci_resource_len(pci_dev, i) >= NV_PCI_REGSZ) { | |
2294 | addr = pci_resource_start(pci_dev, i); | |
2295 | break; | |
2296 | } | |
2297 | } | |
2298 | if (i == DEVICE_COUNT_RESOURCE) { | |
2299 | printk(KERN_INFO "forcedeth: Couldn't find register window for device %s.\n", | |
2300 | pci_name(pci_dev)); | |
2301 | goto out_relreg; | |
2302 | } | |
2303 | ||
2304 | /* handle different descriptor versions */ | |
ee73362c MS |
2305 | if (id->driver_data & DEV_HAS_HIGH_DMA) { |
2306 | /* packet format 3: supports 40-bit addressing */ | |
2307 | np->desc_ver = DESC_VER_3; | |
2308 | if (pci_set_dma_mask(pci_dev, 0x0000007fffffffffULL)) { | |
2309 | printk(KERN_INFO "forcedeth: 64-bit DMA failed, using 32-bit addressing for device %s.\n", | |
2310 | pci_name(pci_dev)); | |
2311 | } | |
2312 | } else if (id->driver_data & DEV_HAS_LARGEDESC) { | |
2313 | /* packet format 2: supports jumbo frames */ | |
1da177e4 | 2314 | np->desc_ver = DESC_VER_2; |
ee73362c MS |
2315 | } else { |
2316 | /* original packet format */ | |
2317 | np->desc_ver = DESC_VER_1; | |
d81c0983 | 2318 | } |
ee73362c MS |
2319 | |
2320 | np->pkt_limit = NV_PKTLIMIT_1; | |
2321 | if (id->driver_data & DEV_HAS_LARGEDESC) | |
2322 | np->pkt_limit = NV_PKTLIMIT_2; | |
2323 | ||
1da177e4 LT |
2324 | err = -ENOMEM; |
2325 | np->base = ioremap(addr, NV_PCI_REGSZ); | |
2326 | if (!np->base) | |
2327 | goto out_relreg; | |
2328 | dev->base_addr = (unsigned long)np->base; | |
ee73362c | 2329 | |
1da177e4 | 2330 | dev->irq = pci_dev->irq; |
ee73362c MS |
2331 | |
2332 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { | |
2333 | np->rx_ring.orig = pci_alloc_consistent(pci_dev, | |
2334 | sizeof(struct ring_desc) * (RX_RING + TX_RING), | |
2335 | &np->ring_addr); | |
2336 | if (!np->rx_ring.orig) | |
2337 | goto out_unmap; | |
2338 | np->tx_ring.orig = &np->rx_ring.orig[RX_RING]; | |
2339 | } else { | |
2340 | np->rx_ring.ex = pci_alloc_consistent(pci_dev, | |
2341 | sizeof(struct ring_desc_ex) * (RX_RING + TX_RING), | |
2342 | &np->ring_addr); | |
2343 | if (!np->rx_ring.ex) | |
2344 | goto out_unmap; | |
2345 | np->tx_ring.ex = &np->rx_ring.ex[RX_RING]; | |
2346 | } | |
1da177e4 LT |
2347 | |
2348 | dev->open = nv_open; | |
2349 | dev->stop = nv_close; | |
2350 | dev->hard_start_xmit = nv_start_xmit; | |
2351 | dev->get_stats = nv_get_stats; | |
2352 | dev->change_mtu = nv_change_mtu; | |
72b31782 | 2353 | dev->set_mac_address = nv_set_mac_address; |
1da177e4 | 2354 | dev->set_multicast_list = nv_set_multicast; |
2918c35d MS |
2355 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2356 | dev->poll_controller = nv_poll_controller; | |
2357 | #endif | |
1da177e4 LT |
2358 | SET_ETHTOOL_OPS(dev, &ops); |
2359 | dev->tx_timeout = nv_tx_timeout; | |
2360 | dev->watchdog_timeo = NV_WATCHDOG_TIMEO; | |
2361 | ||
2362 | pci_set_drvdata(pci_dev, dev); | |
2363 | ||
2364 | /* read the mac address */ | |
2365 | base = get_hwbase(dev); | |
2366 | np->orig_mac[0] = readl(base + NvRegMacAddrA); | |
2367 | np->orig_mac[1] = readl(base + NvRegMacAddrB); | |
2368 | ||
2369 | dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff; | |
2370 | dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff; | |
2371 | dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff; | |
2372 | dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff; | |
2373 | dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff; | |
2374 | dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff; | |
2375 | ||
2376 | if (!is_valid_ether_addr(dev->dev_addr)) { | |
2377 | /* | |
2378 | * Bad mac address. At least one bios sets the mac address | |
2379 | * to 01:23:45:67:89:ab | |
2380 | */ | |
2381 | printk(KERN_ERR "%s: Invalid Mac address detected: %02x:%02x:%02x:%02x:%02x:%02x\n", | |
2382 | pci_name(pci_dev), | |
2383 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
2384 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
2385 | printk(KERN_ERR "Please complain to your hardware vendor. Switching to a random MAC.\n"); | |
2386 | dev->dev_addr[0] = 0x00; | |
2387 | dev->dev_addr[1] = 0x00; | |
2388 | dev->dev_addr[2] = 0x6c; | |
2389 | get_random_bytes(&dev->dev_addr[3], 3); | |
2390 | } | |
2391 | ||
2392 | dprintk(KERN_DEBUG "%s: MAC Address %02x:%02x:%02x:%02x:%02x:%02x\n", pci_name(pci_dev), | |
2393 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
2394 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
2395 | ||
2396 | /* disable WOL */ | |
2397 | writel(0, base + NvRegWakeUpFlags); | |
2398 | np->wolenabled = 0; | |
2399 | ||
2400 | if (np->desc_ver == DESC_VER_1) { | |
2401 | np->tx_flags = NV_TX_LASTPACKET|NV_TX_VALID; | |
1da177e4 LT |
2402 | } else { |
2403 | np->tx_flags = NV_TX2_LASTPACKET|NV_TX2_VALID; | |
1da177e4 | 2404 | } |
c2dba06d | 2405 | np->irqmask = NVREG_IRQMASK_WANTED; |
1da177e4 LT |
2406 | if (id->driver_data & DEV_NEED_TIMERIRQ) |
2407 | np->irqmask |= NVREG_IRQ_TIMER; | |
2408 | if (id->driver_data & DEV_NEED_LINKTIMER) { | |
2409 | dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev)); | |
2410 | np->need_linktimer = 1; | |
2411 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
2412 | } else { | |
2413 | dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev)); | |
2414 | np->need_linktimer = 0; | |
2415 | } | |
2416 | ||
2417 | /* find a suitable phy */ | |
2418 | for (i = 1; i < 32; i++) { | |
2419 | int id1, id2; | |
2420 | ||
2421 | spin_lock_irq(&np->lock); | |
2422 | id1 = mii_rw(dev, i, MII_PHYSID1, MII_READ); | |
2423 | spin_unlock_irq(&np->lock); | |
2424 | if (id1 < 0 || id1 == 0xffff) | |
2425 | continue; | |
2426 | spin_lock_irq(&np->lock); | |
2427 | id2 = mii_rw(dev, i, MII_PHYSID2, MII_READ); | |
2428 | spin_unlock_irq(&np->lock); | |
2429 | if (id2 < 0 || id2 == 0xffff) | |
2430 | continue; | |
2431 | ||
2432 | id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT; | |
2433 | id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT; | |
2434 | dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n", | |
2435 | pci_name(pci_dev), id1, id2, i); | |
2436 | np->phyaddr = i; | |
2437 | np->phy_oui = id1 | id2; | |
2438 | break; | |
2439 | } | |
2440 | if (i == 32) { | |
2441 | /* PHY in isolate mode? No phy attached and user wants to | |
2442 | * test loopback? Very odd, but can be correct. | |
2443 | */ | |
2444 | printk(KERN_INFO "%s: open: Could not find a valid PHY.\n", | |
2445 | pci_name(pci_dev)); | |
2446 | } | |
2447 | ||
2448 | if (i != 32) { | |
2449 | /* reset it */ | |
2450 | phy_init(dev); | |
2451 | } | |
2452 | ||
2453 | /* set default link speed settings */ | |
2454 | np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
2455 | np->duplex = 0; | |
2456 | np->autoneg = 1; | |
2457 | ||
2458 | err = register_netdev(dev); | |
2459 | if (err) { | |
2460 | printk(KERN_INFO "forcedeth: unable to register netdev: %d\n", err); | |
2461 | goto out_freering; | |
2462 | } | |
2463 | printk(KERN_INFO "%s: forcedeth.c: subsystem: %05x:%04x bound to %s\n", | |
2464 | dev->name, pci_dev->subsystem_vendor, pci_dev->subsystem_device, | |
2465 | pci_name(pci_dev)); | |
2466 | ||
2467 | return 0; | |
2468 | ||
2469 | out_freering: | |
ee73362c MS |
2470 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
2471 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (RX_RING + TX_RING), | |
2472 | np->rx_ring.orig, np->ring_addr); | |
2473 | else | |
2474 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (RX_RING + TX_RING), | |
2475 | np->rx_ring.ex, np->ring_addr); | |
1da177e4 LT |
2476 | pci_set_drvdata(pci_dev, NULL); |
2477 | out_unmap: | |
2478 | iounmap(get_hwbase(dev)); | |
2479 | out_relreg: | |
2480 | pci_release_regions(pci_dev); | |
2481 | out_disable: | |
2482 | pci_disable_device(pci_dev); | |
2483 | out_free: | |
2484 | free_netdev(dev); | |
2485 | out: | |
2486 | return err; | |
2487 | } | |
2488 | ||
2489 | static void __devexit nv_remove(struct pci_dev *pci_dev) | |
2490 | { | |
2491 | struct net_device *dev = pci_get_drvdata(pci_dev); | |
2492 | struct fe_priv *np = get_nvpriv(dev); | |
1da177e4 LT |
2493 | |
2494 | unregister_netdev(dev); | |
2495 | ||
1da177e4 | 2496 | /* free all structures */ |
ee73362c MS |
2497 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) |
2498 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (RX_RING + TX_RING), np->rx_ring.orig, np->ring_addr); | |
2499 | else | |
2500 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (RX_RING + TX_RING), np->rx_ring.ex, np->ring_addr); | |
1da177e4 LT |
2501 | iounmap(get_hwbase(dev)); |
2502 | pci_release_regions(pci_dev); | |
2503 | pci_disable_device(pci_dev); | |
2504 | free_netdev(dev); | |
2505 | pci_set_drvdata(pci_dev, NULL); | |
2506 | } | |
2507 | ||
2508 | static struct pci_device_id pci_tbl[] = { | |
2509 | { /* nForce Ethernet Controller */ | |
dc8216c1 | 2510 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_1), |
c2dba06d | 2511 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER, |
1da177e4 LT |
2512 | }, |
2513 | { /* nForce2 Ethernet Controller */ | |
dc8216c1 | 2514 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_2), |
c2dba06d | 2515 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER, |
1da177e4 LT |
2516 | }, |
2517 | { /* nForce3 Ethernet Controller */ | |
dc8216c1 | 2518 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_3), |
c2dba06d | 2519 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER, |
1da177e4 LT |
2520 | }, |
2521 | { /* nForce3 Ethernet Controller */ | |
dc8216c1 | 2522 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4), |
c2dba06d | 2523 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, |
1da177e4 LT |
2524 | }, |
2525 | { /* nForce3 Ethernet Controller */ | |
dc8216c1 | 2526 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5), |
c2dba06d | 2527 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, |
1da177e4 LT |
2528 | }, |
2529 | { /* nForce3 Ethernet Controller */ | |
dc8216c1 | 2530 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6), |
c2dba06d | 2531 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, |
1da177e4 LT |
2532 | }, |
2533 | { /* nForce3 Ethernet Controller */ | |
dc8216c1 | 2534 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7), |
c2dba06d | 2535 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, |
1da177e4 LT |
2536 | }, |
2537 | { /* CK804 Ethernet Controller */ | |
dc8216c1 | 2538 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8), |
ee73362c | 2539 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
1da177e4 LT |
2540 | }, |
2541 | { /* CK804 Ethernet Controller */ | |
dc8216c1 | 2542 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9), |
ee73362c | 2543 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
1da177e4 LT |
2544 | }, |
2545 | { /* MCP04 Ethernet Controller */ | |
dc8216c1 | 2546 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10), |
ee73362c | 2547 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
1da177e4 LT |
2548 | }, |
2549 | { /* MCP04 Ethernet Controller */ | |
dc8216c1 | 2550 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11), |
ee73362c | 2551 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
1da177e4 | 2552 | }, |
9992d4aa | 2553 | { /* MCP51 Ethernet Controller */ |
dc8216c1 | 2554 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12), |
ee73362c | 2555 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA, |
9992d4aa MS |
2556 | }, |
2557 | { /* MCP51 Ethernet Controller */ | |
dc8216c1 | 2558 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13), |
ee73362c | 2559 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA, |
9992d4aa | 2560 | }, |
f49d16ef | 2561 | { /* MCP55 Ethernet Controller */ |
dc8216c1 | 2562 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14), |
ee73362c | 2563 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
f49d16ef MS |
2564 | }, |
2565 | { /* MCP55 Ethernet Controller */ | |
dc8216c1 | 2566 | PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15), |
ee73362c | 2567 | .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, |
f49d16ef | 2568 | }, |
1da177e4 LT |
2569 | {0,}, |
2570 | }; | |
2571 | ||
2572 | static struct pci_driver driver = { | |
2573 | .name = "forcedeth", | |
2574 | .id_table = pci_tbl, | |
2575 | .probe = nv_probe, | |
2576 | .remove = __devexit_p(nv_remove), | |
2577 | }; | |
2578 | ||
2579 | ||
2580 | static int __init init_nic(void) | |
2581 | { | |
2582 | printk(KERN_INFO "forcedeth.c: Reverse Engineered nForce ethernet driver. Version %s.\n", FORCEDETH_VERSION); | |
2583 | return pci_module_init(&driver); | |
2584 | } | |
2585 | ||
2586 | static void __exit exit_nic(void) | |
2587 | { | |
2588 | pci_unregister_driver(&driver); | |
2589 | } | |
2590 | ||
2591 | module_param(max_interrupt_work, int, 0); | |
2592 | MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt"); | |
2593 | ||
2594 | MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>"); | |
2595 | MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver"); | |
2596 | MODULE_LICENSE("GPL"); | |
2597 | ||
2598 | MODULE_DEVICE_TABLE(pci, pci_tbl); | |
2599 | ||
2600 | module_init(init_nic); | |
2601 | module_exit(exit_nic); |