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x86: x86-64 ia32 ptrace debugreg cleanup
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / forcedeth.c
blob7667a62ac31f33c822c03f6ad11619d54e91d7ac
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.
7 *
8 * NVIDIA, nForce and other NVIDIA marks are trademarks or registered
9 * trademarks of NVIDIA Corporation in the United States and other
10 * countries.
11 *
12 * Copyright (C) 2003,4,5 Manfred Spraul
13 * Copyright (C) 2004 Andrew de Quincey (wol support)
14 * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
15 * IRQ rate fixes, bigendian fixes, cleanups, verification)
16 * Copyright (c) 2004,5,6 NVIDIA Corporation
17 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
22 *
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 *
32 * Changelog:
33 * 0.01: 05 Oct 2003: First release that compiles without warnings.
34 * 0.02: 05 Oct 2003: Fix bug for nv_drain_tx: do not try to free NULL skbs.
35 * Check all PCI BARs for the register window.
36 * udelay added to mii_rw.
37 * 0.03: 06 Oct 2003: Initialize dev->irq.
38 * 0.04: 07 Oct 2003: Initialize np->lock, reduce handled irqs, add printks.
39 * 0.05: 09 Oct 2003: printk removed again, irq status print tx_timeout.
40 * 0.06: 10 Oct 2003: MAC Address read updated, pff flag generation updated,
41 * irq mask updated
42 * 0.07: 14 Oct 2003: Further irq mask updates.
43 * 0.08: 20 Oct 2003: rx_desc.Length initialization added, nv_alloc_rx refill
44 * added into irq handler, NULL check for drain_ring.
45 * 0.09: 20 Oct 2003: Basic link speed irq implementation. Only handle the
46 * requested interrupt sources.
47 * 0.10: 20 Oct 2003: First cleanup for release.
48 * 0.11: 21 Oct 2003: hexdump for tx added, rx buffer sizes increased.
49 * MAC Address init fix, set_multicast cleanup.
50 * 0.12: 23 Oct 2003: Cleanups for release.
51 * 0.13: 25 Oct 2003: Limit for concurrent tx packets increased to 10.
52 * Set link speed correctly. start rx before starting
53 * tx (nv_start_rx sets the link speed).
54 * 0.14: 25 Oct 2003: Nic dependant irq mask.
55 * 0.15: 08 Nov 2003: fix smp deadlock with set_multicast_list during
56 * open.
57 * 0.16: 15 Nov 2003: include file cleanup for ppc64, rx buffer size
58 * increased to 1628 bytes.
59 * 0.17: 16 Nov 2003: undo rx buffer size increase. Substract 1 from
60 * the tx length.
61 * 0.18: 17 Nov 2003: fix oops due to late initialization of dev_stats
62 * 0.19: 29 Nov 2003: Handle RxNoBuf, detect & handle invalid mac
63 * addresses, really stop rx if already running
64 * in nv_start_rx, clean up a bit.
65 * 0.20: 07 Dec 2003: alloc fixes
66 * 0.21: 12 Jan 2004: additional alloc fix, nic polling fix.
67 * 0.22: 19 Jan 2004: reprogram timer to a sane rate, avoid lockup
68 * on close.
69 * 0.23: 26 Jan 2004: various small cleanups
70 * 0.24: 27 Feb 2004: make driver even less anonymous in backtraces
71 * 0.25: 09 Mar 2004: wol support
72 * 0.26: 03 Jun 2004: netdriver specific annotation, sparse-related fixes
73 * 0.27: 19 Jun 2004: Gigabit support, new descriptor rings,
74 * added CK804/MCP04 device IDs, code fixes
75 * for registers, link status and other minor fixes.
76 * 0.28: 21 Jun 2004: Big cleanup, making driver mostly endian safe
77 * 0.29: 31 Aug 2004: Add backup timer for link change notification.
78 * 0.30: 25 Sep 2004: rx checksum support for nf 250 Gb. Add rx reset
79 * into nv_close, otherwise reenabling for wol can
80 * cause DMA to kfree'd memory.
81 * 0.31: 14 Nov 2004: ethtool support for getting/setting link
82 * capabilities.
83 * 0.32: 16 Apr 2005: RX_ERROR4 handling added.
84 * 0.33: 16 May 2005: Support for MCP51 added.
85 * 0.34: 18 Jun 2005: Add DEV_NEED_LINKTIMER to all nForce nics.
86 * 0.35: 26 Jun 2005: Support for MCP55 added.
87 * 0.36: 28 Jun 2005: Add jumbo frame support.
88 * 0.37: 10 Jul 2005: Additional ethtool support, cleanup of pci id list
89 * 0.38: 16 Jul 2005: tx irq rewrite: Use global flags instead of
90 * per-packet flags.
91 * 0.39: 18 Jul 2005: Add 64bit descriptor support.
92 * 0.40: 19 Jul 2005: Add support for mac address change.
93 * 0.41: 30 Jul 2005: Write back original MAC in nv_close instead
94 * of nv_remove
95 * 0.42: 06 Aug 2005: Fix lack of link speed initialization
96 * in the second (and later) nv_open call
97 * 0.43: 10 Aug 2005: Add support for tx checksum.
98 * 0.44: 20 Aug 2005: Add support for scatter gather and segmentation.
99 * 0.45: 18 Sep 2005: Remove nv_stop/start_rx from every link check
100 * 0.46: 20 Oct 2005: Add irq optimization modes.
101 * 0.47: 26 Oct 2005: Add phyaddr 0 in phy scan.
102 * 0.48: 24 Dec 2005: Disable TSO, bugfix for pci_map_single
103 * 0.49: 10 Dec 2005: Fix tso for large buffers.
104 * 0.50: 20 Jan 2006: Add 8021pq tagging support.
105 * 0.51: 20 Jan 2006: Add 64bit consistent memory allocation for rings.
106 * 0.52: 20 Jan 2006: Add MSI/MSIX support.
107 * 0.53: 19 Mar 2006: Fix init from low power mode and add hw reset.
108 * 0.54: 21 Mar 2006: Fix spin locks for multi irqs and cleanup.
109 * 0.55: 22 Mar 2006: Add flow control (pause frame).
110 * 0.56: 22 Mar 2006: Additional ethtool config and moduleparam support.
111 * 0.57: 14 May 2006: Mac address set in probe/remove and order corrections.
112 * 0.58: 30 Oct 2006: Added support for sideband management unit.
113 * 0.59: 30 Oct 2006: Added support for recoverable error.
114 * 0.60: 20 Jan 2007: Code optimizations for rings, rx & tx data paths, and stats.
115 *
116 * Known bugs:
117 * We suspect that on some hardware no TX done interrupts are generated.
118 * This means recovery from netif_stop_queue only happens if the hw timer
119 * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)
120 * and the timer is active in the IRQMask, or if a rx packet arrives by chance.
121 * If your hardware reliably generates tx done interrupts, then you can remove
122 * DEV_NEED_TIMERIRQ from the driver_data flags.
123 * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
124 * superfluous timer interrupts from the nic.
125 */
126 #ifdef CONFIG_FORCEDETH_NAPI
127 #define DRIVERNAPI "-NAPI"
128 #else
129 #define DRIVERNAPI
130 #endif
131 #define FORCEDETH_VERSION "0.61"
132 #define DRV_NAME "forcedeth"
133
134 #include <linux/module.h>
135 #include <linux/types.h>
136 #include <linux/pci.h>
137 #include <linux/interrupt.h>
138 #include <linux/netdevice.h>
139 #include <linux/etherdevice.h>
140 #include <linux/delay.h>
141 #include <linux/spinlock.h>
142 #include <linux/ethtool.h>
143 #include <linux/timer.h>
144 #include <linux/skbuff.h>
145 #include <linux/mii.h>
146 #include <linux/random.h>
147 #include <linux/init.h>
148 #include <linux/if_vlan.h>
149 #include <linux/dma-mapping.h>
150
151 #include <asm/irq.h>
152 #include <asm/io.h>
153 #include <asm/uaccess.h>
154 #include <asm/system.h>
155
156 #if 0
157 #define dprintk printk
158 #else
159 #define dprintk(x...) do { } while (0)
160 #endif
161
162 #define TX_WORK_PER_LOOP 64
163 #define RX_WORK_PER_LOOP 64
164
165 /*
166 * Hardware access:
167 */
168
169 #define DEV_NEED_TIMERIRQ 0x0001 /* set the timer irq flag in the irq mask */
170 #define DEV_NEED_LINKTIMER 0x0002 /* poll link settings. Relies on the timer irq */
171 #define DEV_HAS_LARGEDESC 0x0004 /* device supports jumbo frames and needs packet format 2 */
172 #define DEV_HAS_HIGH_DMA 0x0008 /* device supports 64bit dma */
173 #define DEV_HAS_CHECKSUM 0x0010 /* device supports tx and rx checksum offloads */
174 #define DEV_HAS_VLAN 0x0020 /* device supports vlan tagging and striping */
175 #define DEV_HAS_MSI 0x0040 /* device supports MSI */
176 #define DEV_HAS_MSI_X 0x0080 /* device supports MSI-X */
177 #define DEV_HAS_POWER_CNTRL 0x0100 /* device supports power savings */
178 #define DEV_HAS_PAUSEFRAME_TX 0x0200 /* device supports tx pause frames */
179 #define DEV_HAS_STATISTICS_V1 0x0400 /* device supports hw statistics version 1 */
180 #define DEV_HAS_STATISTICS_V2 0x0800 /* device supports hw statistics version 2 */
181 #define DEV_HAS_TEST_EXTENDED 0x1000 /* device supports extended diagnostic test */
182 #define DEV_HAS_MGMT_UNIT 0x2000 /* device supports management unit */
183 #define DEV_HAS_CORRECT_MACADDR 0x4000 /* device supports correct mac address order */
184
185 enum {
186 NvRegIrqStatus = 0x000,
187 #define NVREG_IRQSTAT_MIIEVENT 0x040
188 #define NVREG_IRQSTAT_MASK 0x81ff
189 NvRegIrqMask = 0x004,
190 #define NVREG_IRQ_RX_ERROR 0x0001
191 #define NVREG_IRQ_RX 0x0002
192 #define NVREG_IRQ_RX_NOBUF 0x0004
193 #define NVREG_IRQ_TX_ERR 0x0008
194 #define NVREG_IRQ_TX_OK 0x0010
195 #define NVREG_IRQ_TIMER 0x0020
196 #define NVREG_IRQ_LINK 0x0040
197 #define NVREG_IRQ_RX_FORCED 0x0080
198 #define NVREG_IRQ_TX_FORCED 0x0100
199 #define NVREG_IRQ_RECOVER_ERROR 0x8000
200 #define NVREG_IRQMASK_THROUGHPUT 0x00df
201 #define NVREG_IRQMASK_CPU 0x0060
202 #define NVREG_IRQ_TX_ALL (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED)
203 #define NVREG_IRQ_RX_ALL (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
204 #define NVREG_IRQ_OTHER (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
205
206 #define NVREG_IRQ_UNKNOWN (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \
207 NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RX_FORCED| \
208 NVREG_IRQ_TX_FORCED|NVREG_IRQ_RECOVER_ERROR))
209
210 NvRegUnknownSetupReg6 = 0x008,
211 #define NVREG_UNKSETUP6_VAL 3
212
213 /*
214 * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
215 * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
216 */
217 NvRegPollingInterval = 0x00c,
218 #define NVREG_POLL_DEFAULT_THROUGHPUT 970 /* backup tx cleanup if loop max reached */
219 #define NVREG_POLL_DEFAULT_CPU 13
220 NvRegMSIMap0 = 0x020,
221 NvRegMSIMap1 = 0x024,
222 NvRegMSIIrqMask = 0x030,
223 #define NVREG_MSI_VECTOR_0_ENABLED 0x01
224 NvRegMisc1 = 0x080,
225 #define NVREG_MISC1_PAUSE_TX 0x01
226 #define NVREG_MISC1_HD 0x02
227 #define NVREG_MISC1_FORCE 0x3b0f3c
228
229 NvRegMacReset = 0x3c,
230 #define NVREG_MAC_RESET_ASSERT 0x0F3
231 NvRegTransmitterControl = 0x084,
232 #define NVREG_XMITCTL_START 0x01
233 #define NVREG_XMITCTL_MGMT_ST 0x40000000
234 #define NVREG_XMITCTL_SYNC_MASK 0x000f0000
235 #define NVREG_XMITCTL_SYNC_NOT_READY 0x0
236 #define NVREG_XMITCTL_SYNC_PHY_INIT 0x00040000
237 #define NVREG_XMITCTL_MGMT_SEMA_MASK 0x00000f00
238 #define NVREG_XMITCTL_MGMT_SEMA_FREE 0x0
239 #define NVREG_XMITCTL_HOST_SEMA_MASK 0x0000f000
240 #define NVREG_XMITCTL_HOST_SEMA_ACQ 0x0000f000
241 #define NVREG_XMITCTL_HOST_LOADED 0x00004000
242 #define NVREG_XMITCTL_TX_PATH_EN 0x01000000
243 NvRegTransmitterStatus = 0x088,
244 #define NVREG_XMITSTAT_BUSY 0x01
245
246 NvRegPacketFilterFlags = 0x8c,
247 #define NVREG_PFF_PAUSE_RX 0x08
248 #define NVREG_PFF_ALWAYS 0x7F0000
249 #define NVREG_PFF_PROMISC 0x80
250 #define NVREG_PFF_MYADDR 0x20
251 #define NVREG_PFF_LOOPBACK 0x10
252
253 NvRegOffloadConfig = 0x90,
254 #define NVREG_OFFLOAD_HOMEPHY 0x601
255 #define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE
256 NvRegReceiverControl = 0x094,
257 #define NVREG_RCVCTL_START 0x01
258 #define NVREG_RCVCTL_RX_PATH_EN 0x01000000
259 NvRegReceiverStatus = 0x98,
260 #define NVREG_RCVSTAT_BUSY 0x01
261
262 NvRegRandomSeed = 0x9c,
263 #define NVREG_RNDSEED_MASK 0x00ff
264 #define NVREG_RNDSEED_FORCE 0x7f00
265 #define NVREG_RNDSEED_FORCE2 0x2d00
266 #define NVREG_RNDSEED_FORCE3 0x7400
267
268 NvRegTxDeferral = 0xA0,
269 #define NVREG_TX_DEFERRAL_DEFAULT 0x15050f
270 #define NVREG_TX_DEFERRAL_RGMII_10_100 0x16070f
271 #define NVREG_TX_DEFERRAL_RGMII_1000 0x14050f
272 NvRegRxDeferral = 0xA4,
273 #define NVREG_RX_DEFERRAL_DEFAULT 0x16
274 NvRegMacAddrA = 0xA8,
275 NvRegMacAddrB = 0xAC,
276 NvRegMulticastAddrA = 0xB0,
277 #define NVREG_MCASTADDRA_FORCE 0x01
278 NvRegMulticastAddrB = 0xB4,
279 NvRegMulticastMaskA = 0xB8,
280 NvRegMulticastMaskB = 0xBC,
281
282 NvRegPhyInterface = 0xC0,
283 #define PHY_RGMII 0x10000000
284
285 NvRegTxRingPhysAddr = 0x100,
286 NvRegRxRingPhysAddr = 0x104,
287 NvRegRingSizes = 0x108,
288 #define NVREG_RINGSZ_TXSHIFT 0
289 #define NVREG_RINGSZ_RXSHIFT 16
290 NvRegTransmitPoll = 0x10c,
291 #define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000
292 NvRegLinkSpeed = 0x110,
293 #define NVREG_LINKSPEED_FORCE 0x10000
294 #define NVREG_LINKSPEED_10 1000
295 #define NVREG_LINKSPEED_100 100
296 #define NVREG_LINKSPEED_1000 50
297 #define NVREG_LINKSPEED_MASK (0xFFF)
298 NvRegUnknownSetupReg5 = 0x130,
299 #define NVREG_UNKSETUP5_BIT31 (1<<31)
300 NvRegTxWatermark = 0x13c,
301 #define NVREG_TX_WM_DESC1_DEFAULT 0x0200010
302 #define NVREG_TX_WM_DESC2_3_DEFAULT 0x1e08000
303 #define NVREG_TX_WM_DESC2_3_1000 0xfe08000
304 NvRegTxRxControl = 0x144,
305 #define NVREG_TXRXCTL_KICK 0x0001
306 #define NVREG_TXRXCTL_BIT1 0x0002
307 #define NVREG_TXRXCTL_BIT2 0x0004
308 #define NVREG_TXRXCTL_IDLE 0x0008
309 #define NVREG_TXRXCTL_RESET 0x0010
310 #define NVREG_TXRXCTL_RXCHECK 0x0400
311 #define NVREG_TXRXCTL_DESC_1 0
312 #define NVREG_TXRXCTL_DESC_2 0x002100
313 #define NVREG_TXRXCTL_DESC_3 0xc02200
314 #define NVREG_TXRXCTL_VLANSTRIP 0x00040
315 #define NVREG_TXRXCTL_VLANINS 0x00080
316 NvRegTxRingPhysAddrHigh = 0x148,
317 NvRegRxRingPhysAddrHigh = 0x14C,
318 NvRegTxPauseFrame = 0x170,
319 #define NVREG_TX_PAUSEFRAME_DISABLE 0x1ff0080
320 #define NVREG_TX_PAUSEFRAME_ENABLE 0x0c00030
321 NvRegMIIStatus = 0x180,
322 #define NVREG_MIISTAT_ERROR 0x0001
323 #define NVREG_MIISTAT_LINKCHANGE 0x0008
324 #define NVREG_MIISTAT_MASK 0x000f
325 #define NVREG_MIISTAT_MASK2 0x000f
326 NvRegMIIMask = 0x184,
327 #define NVREG_MII_LINKCHANGE 0x0008
328
329 NvRegAdapterControl = 0x188,
330 #define NVREG_ADAPTCTL_START 0x02
331 #define NVREG_ADAPTCTL_LINKUP 0x04
332 #define NVREG_ADAPTCTL_PHYVALID 0x40000
333 #define NVREG_ADAPTCTL_RUNNING 0x100000
334 #define NVREG_ADAPTCTL_PHYSHIFT 24
335 NvRegMIISpeed = 0x18c,
336 #define NVREG_MIISPEED_BIT8 (1<<8)
337 #define NVREG_MIIDELAY 5
338 NvRegMIIControl = 0x190,
339 #define NVREG_MIICTL_INUSE 0x08000
340 #define NVREG_MIICTL_WRITE 0x00400
341 #define NVREG_MIICTL_ADDRSHIFT 5
342 NvRegMIIData = 0x194,
343 NvRegWakeUpFlags = 0x200,
344 #define NVREG_WAKEUPFLAGS_VAL 0x7770
345 #define NVREG_WAKEUPFLAGS_BUSYSHIFT 24
346 #define NVREG_WAKEUPFLAGS_ENABLESHIFT 16
347 #define NVREG_WAKEUPFLAGS_D3SHIFT 12
348 #define NVREG_WAKEUPFLAGS_D2SHIFT 8
349 #define NVREG_WAKEUPFLAGS_D1SHIFT 4
350 #define NVREG_WAKEUPFLAGS_D0SHIFT 0
351 #define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01
352 #define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02
353 #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04
354 #define NVREG_WAKEUPFLAGS_ENABLE 0x1111
355
356 NvRegPatternCRC = 0x204,
357 NvRegPatternMask = 0x208,
358 NvRegPowerCap = 0x268,
359 #define NVREG_POWERCAP_D3SUPP (1<<30)
360 #define NVREG_POWERCAP_D2SUPP (1<<26)
361 #define NVREG_POWERCAP_D1SUPP (1<<25)
362 NvRegPowerState = 0x26c,
363 #define NVREG_POWERSTATE_POWEREDUP 0x8000
364 #define NVREG_POWERSTATE_VALID 0x0100
365 #define NVREG_POWERSTATE_MASK 0x0003
366 #define NVREG_POWERSTATE_D0 0x0000
367 #define NVREG_POWERSTATE_D1 0x0001
368 #define NVREG_POWERSTATE_D2 0x0002
369 #define NVREG_POWERSTATE_D3 0x0003
370 NvRegTxCnt = 0x280,
371 NvRegTxZeroReXmt = 0x284,
372 NvRegTxOneReXmt = 0x288,
373 NvRegTxManyReXmt = 0x28c,
374 NvRegTxLateCol = 0x290,
375 NvRegTxUnderflow = 0x294,
376 NvRegTxLossCarrier = 0x298,
377 NvRegTxExcessDef = 0x29c,
378 NvRegTxRetryErr = 0x2a0,
379 NvRegRxFrameErr = 0x2a4,
380 NvRegRxExtraByte = 0x2a8,
381 NvRegRxLateCol = 0x2ac,
382 NvRegRxRunt = 0x2b0,
383 NvRegRxFrameTooLong = 0x2b4,
384 NvRegRxOverflow = 0x2b8,
385 NvRegRxFCSErr = 0x2bc,
386 NvRegRxFrameAlignErr = 0x2c0,
387 NvRegRxLenErr = 0x2c4,
388 NvRegRxUnicast = 0x2c8,
389 NvRegRxMulticast = 0x2cc,
390 NvRegRxBroadcast = 0x2d0,
391 NvRegTxDef = 0x2d4,
392 NvRegTxFrame = 0x2d8,
393 NvRegRxCnt = 0x2dc,
394 NvRegTxPause = 0x2e0,
395 NvRegRxPause = 0x2e4,
396 NvRegRxDropFrame = 0x2e8,
397 NvRegVlanControl = 0x300,
398 #define NVREG_VLANCONTROL_ENABLE 0x2000
399 NvRegMSIXMap0 = 0x3e0,
400 NvRegMSIXMap1 = 0x3e4,
401 NvRegMSIXIrqStatus = 0x3f0,
402
403 NvRegPowerState2 = 0x600,
404 #define NVREG_POWERSTATE2_POWERUP_MASK 0x0F11
405 #define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001
406 };
407
408 /* Big endian: should work, but is untested */
409 struct ring_desc {
410 __le32 buf;
411 __le32 flaglen;
412 };
413
414 struct ring_desc_ex {
415 __le32 bufhigh;
416 __le32 buflow;
417 __le32 txvlan;
418 __le32 flaglen;
419 };
420
421 union ring_type {
422 struct ring_desc* orig;
423 struct ring_desc_ex* ex;
424 };
425
426 #define FLAG_MASK_V1 0xffff0000
427 #define FLAG_MASK_V2 0xffffc000
428 #define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
429 #define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
430
431 #define NV_TX_LASTPACKET (1<<16)
432 #define NV_TX_RETRYERROR (1<<19)
433 #define NV_TX_FORCED_INTERRUPT (1<<24)
434 #define NV_TX_DEFERRED (1<<26)
435 #define NV_TX_CARRIERLOST (1<<27)
436 #define NV_TX_LATECOLLISION (1<<28)
437 #define NV_TX_UNDERFLOW (1<<29)
438 #define NV_TX_ERROR (1<<30)
439 #define NV_TX_VALID (1<<31)
440
441 #define NV_TX2_LASTPACKET (1<<29)
442 #define NV_TX2_RETRYERROR (1<<18)
443 #define NV_TX2_FORCED_INTERRUPT (1<<30)
444 #define NV_TX2_DEFERRED (1<<25)
445 #define NV_TX2_CARRIERLOST (1<<26)
446 #define NV_TX2_LATECOLLISION (1<<27)
447 #define NV_TX2_UNDERFLOW (1<<28)
448 /* error and valid are the same for both */
449 #define NV_TX2_ERROR (1<<30)
450 #define NV_TX2_VALID (1<<31)
451 #define NV_TX2_TSO (1<<28)
452 #define NV_TX2_TSO_SHIFT 14
453 #define NV_TX2_TSO_MAX_SHIFT 14
454 #define NV_TX2_TSO_MAX_SIZE (1<<NV_TX2_TSO_MAX_SHIFT)
455 #define NV_TX2_CHECKSUM_L3 (1<<27)
456 #define NV_TX2_CHECKSUM_L4 (1<<26)
457
458 #define NV_TX3_VLAN_TAG_PRESENT (1<<18)
459
460 #define NV_RX_DESCRIPTORVALID (1<<16)
461 #define NV_RX_MISSEDFRAME (1<<17)
462 #define NV_RX_SUBSTRACT1 (1<<18)
463 #define NV_RX_ERROR1 (1<<23)
464 #define NV_RX_ERROR2 (1<<24)
465 #define NV_RX_ERROR3 (1<<25)
466 #define NV_RX_ERROR4 (1<<26)
467 #define NV_RX_CRCERR (1<<27)
468 #define NV_RX_OVERFLOW (1<<28)
469 #define NV_RX_FRAMINGERR (1<<29)
470 #define NV_RX_ERROR (1<<30)
471 #define NV_RX_AVAIL (1<<31)
472
473 #define NV_RX2_CHECKSUMMASK (0x1C000000)
474 #define NV_RX2_CHECKSUMOK1 (0x10000000)
475 #define NV_RX2_CHECKSUMOK2 (0x14000000)
476 #define NV_RX2_CHECKSUMOK3 (0x18000000)
477 #define NV_RX2_DESCRIPTORVALID (1<<29)
478 #define NV_RX2_SUBSTRACT1 (1<<25)
479 #define NV_RX2_ERROR1 (1<<18)
480 #define NV_RX2_ERROR2 (1<<19)
481 #define NV_RX2_ERROR3 (1<<20)
482 #define NV_RX2_ERROR4 (1<<21)
483 #define NV_RX2_CRCERR (1<<22)
484 #define NV_RX2_OVERFLOW (1<<23)
485 #define NV_RX2_FRAMINGERR (1<<24)
486 /* error and avail are the same for both */
487 #define NV_RX2_ERROR (1<<30)
488 #define NV_RX2_AVAIL (1<<31)
489
490 #define NV_RX3_VLAN_TAG_PRESENT (1<<16)
491 #define NV_RX3_VLAN_TAG_MASK (0x0000FFFF)
492
493 /* Miscelaneous hardware related defines: */
494 #define NV_PCI_REGSZ_VER1 0x270
495 #define NV_PCI_REGSZ_VER2 0x2d4
496 #define NV_PCI_REGSZ_VER3 0x604
497
498 /* various timeout delays: all in usec */
499 #define NV_TXRX_RESET_DELAY 4
500 #define NV_TXSTOP_DELAY1 10
501 #define NV_TXSTOP_DELAY1MAX 500000
502 #define NV_TXSTOP_DELAY2 100
503 #define NV_RXSTOP_DELAY1 10
504 #define NV_RXSTOP_DELAY1MAX 500000
505 #define NV_RXSTOP_DELAY2 100
506 #define NV_SETUP5_DELAY 5
507 #define NV_SETUP5_DELAYMAX 50000
508 #define NV_POWERUP_DELAY 5
509 #define NV_POWERUP_DELAYMAX 5000
510 #define NV_MIIBUSY_DELAY 50
511 #define NV_MIIPHY_DELAY 10
512 #define NV_MIIPHY_DELAYMAX 10000
513 #define NV_MAC_RESET_DELAY 64
514
515 #define NV_WAKEUPPATTERNS 5
516 #define NV_WAKEUPMASKENTRIES 4
517
518 /* General driver defaults */
519 #define NV_WATCHDOG_TIMEO (5*HZ)
520
521 #define RX_RING_DEFAULT 128
522 #define TX_RING_DEFAULT 256
523 #define RX_RING_MIN 128
524 #define TX_RING_MIN 64
525 #define RING_MAX_DESC_VER_1 1024
526 #define RING_MAX_DESC_VER_2_3 16384
527
528 /* rx/tx mac addr + type + vlan + align + slack*/
529 #define NV_RX_HEADERS (64)
530 /* even more slack. */
531 #define NV_RX_ALLOC_PAD (64)
532
533 /* maximum mtu size */
534 #define NV_PKTLIMIT_1 ETH_DATA_LEN /* hard limit not known */
535 #define NV_PKTLIMIT_2 9100 /* Actual limit according to NVidia: 9202 */
536
537 #define OOM_REFILL (1+HZ/20)
538 #define POLL_WAIT (1+HZ/100)
539 #define LINK_TIMEOUT (3*HZ)
540 #define STATS_INTERVAL (10*HZ)
541
542 /*
543 * desc_ver values:
544 * The nic supports three different descriptor types:
545 * - DESC_VER_1: Original
546 * - DESC_VER_2: support for jumbo frames.
547 * - DESC_VER_3: 64-bit format.
548 */
549 #define DESC_VER_1 1
550 #define DESC_VER_2 2
551 #define DESC_VER_3 3
552
553 /* PHY defines */
554 #define PHY_OUI_MARVELL 0x5043
555 #define PHY_OUI_CICADA 0x03f1
556 #define PHY_OUI_VITESSE 0x01c1
557 #define PHY_OUI_REALTEK 0x0732
558 #define PHYID1_OUI_MASK 0x03ff
559 #define PHYID1_OUI_SHFT 6
560 #define PHYID2_OUI_MASK 0xfc00
561 #define PHYID2_OUI_SHFT 10
562 #define PHYID2_MODEL_MASK 0x03f0
563 #define PHY_MODEL_MARVELL_E3016 0x220
564 #define PHY_MARVELL_E3016_INITMASK 0x0300
565 #define PHY_CICADA_INIT1 0x0f000
566 #define PHY_CICADA_INIT2 0x0e00
567 #define PHY_CICADA_INIT3 0x01000
568 #define PHY_CICADA_INIT4 0x0200
569 #define PHY_CICADA_INIT5 0x0004
570 #define PHY_CICADA_INIT6 0x02000
571 #define PHY_VITESSE_INIT_REG1 0x1f
572 #define PHY_VITESSE_INIT_REG2 0x10
573 #define PHY_VITESSE_INIT_REG3 0x11
574 #define PHY_VITESSE_INIT_REG4 0x12
575 #define PHY_VITESSE_INIT_MSK1 0xc
576 #define PHY_VITESSE_INIT_MSK2 0x0180
577 #define PHY_VITESSE_INIT1 0x52b5
578 #define PHY_VITESSE_INIT2 0xaf8a
579 #define PHY_VITESSE_INIT3 0x8
580 #define PHY_VITESSE_INIT4 0x8f8a
581 #define PHY_VITESSE_INIT5 0xaf86
582 #define PHY_VITESSE_INIT6 0x8f86
583 #define PHY_VITESSE_INIT7 0xaf82
584 #define PHY_VITESSE_INIT8 0x0100
585 #define PHY_VITESSE_INIT9 0x8f82
586 #define PHY_VITESSE_INIT10 0x0
587 #define PHY_REALTEK_INIT_REG1 0x1f
588 #define PHY_REALTEK_INIT_REG2 0x19
589 #define PHY_REALTEK_INIT_REG3 0x13
590 #define PHY_REALTEK_INIT1 0x0000
591 #define PHY_REALTEK_INIT2 0x8e00
592 #define PHY_REALTEK_INIT3 0x0001
593 #define PHY_REALTEK_INIT4 0xad17
594
595 #define PHY_GIGABIT 0x0100
596
597 #define PHY_TIMEOUT 0x1
598 #define PHY_ERROR 0x2
599
600 #define PHY_100 0x1
601 #define PHY_1000 0x2
602 #define PHY_HALF 0x100
603
604 #define NV_PAUSEFRAME_RX_CAPABLE 0x0001
605 #define NV_PAUSEFRAME_TX_CAPABLE 0x0002
606 #define NV_PAUSEFRAME_RX_ENABLE 0x0004
607 #define NV_PAUSEFRAME_TX_ENABLE 0x0008
608 #define NV_PAUSEFRAME_RX_REQ 0x0010
609 #define NV_PAUSEFRAME_TX_REQ 0x0020
610 #define NV_PAUSEFRAME_AUTONEG 0x0040
611
612 /* MSI/MSI-X defines */
613 #define NV_MSI_X_MAX_VECTORS 8
614 #define NV_MSI_X_VECTORS_MASK 0x000f
615 #define NV_MSI_CAPABLE 0x0010
616 #define NV_MSI_X_CAPABLE 0x0020
617 #define NV_MSI_ENABLED 0x0040
618 #define NV_MSI_X_ENABLED 0x0080
619
620 #define NV_MSI_X_VECTOR_ALL 0x0
621 #define NV_MSI_X_VECTOR_RX 0x0
622 #define NV_MSI_X_VECTOR_TX 0x1
623 #define NV_MSI_X_VECTOR_OTHER 0x2
624
625 /* statistics */
626 struct nv_ethtool_str {
627 char name[ETH_GSTRING_LEN];
628 };
629
630 static const struct nv_ethtool_str nv_estats_str[] = {
631 { "tx_bytes" },
632 { "tx_zero_rexmt" },
633 { "tx_one_rexmt" },
634 { "tx_many_rexmt" },
635 { "tx_late_collision" },
636 { "tx_fifo_errors" },
637 { "tx_carrier_errors" },
638 { "tx_excess_deferral" },
639 { "tx_retry_error" },
640 { "rx_frame_error" },
641 { "rx_extra_byte" },
642 { "rx_late_collision" },
643 { "rx_runt" },
644 { "rx_frame_too_long" },
645 { "rx_over_errors" },
646 { "rx_crc_errors" },
647 { "rx_frame_align_error" },
648 { "rx_length_error" },
649 { "rx_unicast" },
650 { "rx_multicast" },
651 { "rx_broadcast" },
652 { "rx_packets" },
653 { "rx_errors_total" },
654 { "tx_errors_total" },
655
656 /* version 2 stats */
657 { "tx_deferral" },
658 { "tx_packets" },
659 { "rx_bytes" },
660 { "tx_pause" },
661 { "rx_pause" },
662 { "rx_drop_frame" }
663 };
664
665 struct nv_ethtool_stats {
666 u64 tx_bytes;
667 u64 tx_zero_rexmt;
668 u64 tx_one_rexmt;
669 u64 tx_many_rexmt;
670 u64 tx_late_collision;
671 u64 tx_fifo_errors;
672 u64 tx_carrier_errors;
673 u64 tx_excess_deferral;
674 u64 tx_retry_error;
675 u64 rx_frame_error;
676 u64 rx_extra_byte;
677 u64 rx_late_collision;
678 u64 rx_runt;
679 u64 rx_frame_too_long;
680 u64 rx_over_errors;
681 u64 rx_crc_errors;
682 u64 rx_frame_align_error;
683 u64 rx_length_error;
684 u64 rx_unicast;
685 u64 rx_multicast;
686 u64 rx_broadcast;
687 u64 rx_packets;
688 u64 rx_errors_total;
689 u64 tx_errors_total;
690
691 /* version 2 stats */
692 u64 tx_deferral;
693 u64 tx_packets;
694 u64 rx_bytes;
695 u64 tx_pause;
696 u64 rx_pause;
697 u64 rx_drop_frame;
698 };
699
700 #define NV_DEV_STATISTICS_V2_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64))
701 #define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6)
702
703 /* diagnostics */
704 #define NV_TEST_COUNT_BASE 3
705 #define NV_TEST_COUNT_EXTENDED 4
706
707 static const struct nv_ethtool_str nv_etests_str[] = {
708 { "link (online/offline)" },
709 { "register (offline) " },
710 { "interrupt (offline) " },
711 { "loopback (offline) " }
712 };
713
714 struct register_test {
715 __u32 reg;
716 __u32 mask;
717 };
718
719 static const struct register_test nv_registers_test[] = {
720 { NvRegUnknownSetupReg6, 0x01 },
721 { NvRegMisc1, 0x03c },
722 { NvRegOffloadConfig, 0x03ff },
723 { NvRegMulticastAddrA, 0xffffffff },
724 { NvRegTxWatermark, 0x0ff },
725 { NvRegWakeUpFlags, 0x07777 },
726 { 0,0 }
727 };
728
729 struct nv_skb_map {
730 struct sk_buff *skb;
731 dma_addr_t dma;
732 unsigned int dma_len;
733 };
734
735 /*
736 * SMP locking:
737 * All hardware access under dev->priv->lock, except the performance
738 * critical parts:
739 * - rx is (pseudo-) lockless: it relies on the single-threading provided
740 * by the arch code for interrupts.
741 * - tx setup is lockless: it relies on netif_tx_lock. Actual submission
742 * needs dev->priv->lock :-(
743 * - set_multicast_list: preparation lockless, relies on netif_tx_lock.
744 */
745
746 /* in dev: base, irq */
747 struct fe_priv {
748 spinlock_t lock;
749
750 struct net_device *dev;
751 struct napi_struct napi;
752
753 /* General data:
754 * Locking: spin_lock(&np->lock); */
755 struct nv_ethtool_stats estats;
756 int in_shutdown;
757 u32 linkspeed;
758 int duplex;
759 int autoneg;
760 int fixed_mode;
761 int phyaddr;
762 int wolenabled;
763 unsigned int phy_oui;
764 unsigned int phy_model;
765 u16 gigabit;
766 int intr_test;
767 int recover_error;
768
769 /* General data: RO fields */
770 dma_addr_t ring_addr;
771 struct pci_dev *pci_dev;
772 u32 orig_mac[2];
773 u32 irqmask;
774 u32 desc_ver;
775 u32 txrxctl_bits;
776 u32 vlanctl_bits;
777 u32 driver_data;
778 u32 register_size;
779 int rx_csum;
780 u32 mac_in_use;
781
782 void __iomem *base;
783
784 /* rx specific fields.
785 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
786 */
787 union ring_type get_rx, put_rx, first_rx, last_rx;
788 struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
789 struct nv_skb_map *first_rx_ctx, *last_rx_ctx;
790 struct nv_skb_map *rx_skb;
791
792 union ring_type rx_ring;
793 unsigned int rx_buf_sz;
794 unsigned int pkt_limit;
795 struct timer_list oom_kick;
796 struct timer_list nic_poll;
797 struct timer_list stats_poll;
798 u32 nic_poll_irq;
799 int rx_ring_size;
800
801 /* media detection workaround.
802 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
803 */
804 int need_linktimer;
805 unsigned long link_timeout;
806 /*
807 * tx specific fields.
808 */
809 union ring_type get_tx, put_tx, first_tx, last_tx;
810 struct nv_skb_map *get_tx_ctx, *put_tx_ctx;
811 struct nv_skb_map *first_tx_ctx, *last_tx_ctx;
812 struct nv_skb_map *tx_skb;
813
814 union ring_type tx_ring;
815 u32 tx_flags;
816 int tx_ring_size;
817 int tx_stop;
818
819 /* vlan fields */
820 struct vlan_group *vlangrp;
821
822 /* msi/msi-x fields */
823 u32 msi_flags;
824 struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
825
826 /* flow control */
827 u32 pause_flags;
828 };
829
830 /*
831 * Maximum number of loops until we assume that a bit in the irq mask
832 * is stuck. Overridable with module param.
833 */
834 static int max_interrupt_work = 5;
835
836 /*
837 * Optimization can be either throuput mode or cpu mode
838 *
839 * Throughput Mode: Every tx and rx packet will generate an interrupt.
840 * CPU Mode: Interrupts are controlled by a timer.
841 */
842 enum {
843 NV_OPTIMIZATION_MODE_THROUGHPUT,
844 NV_OPTIMIZATION_MODE_CPU
845 };
846 static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
847
848 /*
849 * Poll interval for timer irq
850 *
851 * This interval determines how frequent an interrupt is generated.
852 * The is value is determined by [(time_in_micro_secs * 100) / (2^10)]
853 * Min = 0, and Max = 65535
854 */
855 static int poll_interval = -1;
856
857 /*
858 * MSI interrupts
859 */
860 enum {
861 NV_MSI_INT_DISABLED,
862 NV_MSI_INT_ENABLED
863 };
864 static int msi = NV_MSI_INT_ENABLED;
865
866 /*
867 * MSIX interrupts
868 */
869 enum {
870 NV_MSIX_INT_DISABLED,
871 NV_MSIX_INT_ENABLED
872 };
873 static int msix = NV_MSIX_INT_DISABLED;
874
875 /*
876 * DMA 64bit
877 */
878 enum {
879 NV_DMA_64BIT_DISABLED,
880 NV_DMA_64BIT_ENABLED
881 };
882 static int dma_64bit = NV_DMA_64BIT_ENABLED;
883
884 static inline struct fe_priv *get_nvpriv(struct net_device *dev)
885 {
886 return netdev_priv(dev);
887 }
888
889 static inline u8 __iomem *get_hwbase(struct net_device *dev)
890 {
891 return ((struct fe_priv *)netdev_priv(dev))->base;
892 }
893
894 static inline void pci_push(u8 __iomem *base)
895 {
896 /* force out pending posted writes */
897 readl(base);
898 }
899
900 static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
901 {
902 return le32_to_cpu(prd->flaglen)
903 & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
904 }
905
906 static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v)
907 {
908 return le32_to_cpu(prd->flaglen) & LEN_MASK_V2;
909 }
910
911 static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
912 int delay, int delaymax, const char *msg)
913 {
914 u8 __iomem *base = get_hwbase(dev);
915
916 pci_push(base);
917 do {
918 udelay(delay);
919 delaymax -= delay;
920 if (delaymax < 0) {
921 if (msg)
922 printk(msg);
923 return 1;
924 }
925 } while ((readl(base + offset) & mask) != target);
926 return 0;
927 }
928
929 #define NV_SETUP_RX_RING 0x01
930 #define NV_SETUP_TX_RING 0x02
931
932 static inline u32 dma_low(dma_addr_t addr)
933 {
934 return addr;
935 }
936
937 static inline u32 dma_high(dma_addr_t addr)
938 {
939 return addr>>31>>1; /* 0 if 32bit, shift down by 32 if 64bit */
940 }
941
942 static void setup_hw_rings(struct net_device *dev, int rxtx_flags)
943 {
944 struct fe_priv *np = get_nvpriv(dev);
945 u8 __iomem *base = get_hwbase(dev);
946
947 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
948 if (rxtx_flags & NV_SETUP_RX_RING) {
949 writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
950 }
951 if (rxtx_flags & NV_SETUP_TX_RING) {
952 writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
953 }
954 } else {
955 if (rxtx_flags & NV_SETUP_RX_RING) {
956 writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
957 writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh);
958 }
959 if (rxtx_flags & NV_SETUP_TX_RING) {
960 writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
961 writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh);
962 }
963 }
964 }
965
966 static void free_rings(struct net_device *dev)
967 {
968 struct fe_priv *np = get_nvpriv(dev);
969
970 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
971 if (np->rx_ring.orig)
972 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
973 np->rx_ring.orig, np->ring_addr);
974 } else {
975 if (np->rx_ring.ex)
976 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
977 np->rx_ring.ex, np->ring_addr);
978 }
979 if (np->rx_skb)
980 kfree(np->rx_skb);
981 if (np->tx_skb)
982 kfree(np->tx_skb);
983 }
984
985 static int using_multi_irqs(struct net_device *dev)
986 {
987 struct fe_priv *np = get_nvpriv(dev);
988
989 if (!(np->msi_flags & NV_MSI_X_ENABLED) ||
990 ((np->msi_flags & NV_MSI_X_ENABLED) &&
991 ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1)))
992 return 0;
993 else
994 return 1;
995 }
996
997 static void nv_enable_irq(struct net_device *dev)
998 {
999 struct fe_priv *np = get_nvpriv(dev);
1000
1001 if (!using_multi_irqs(dev)) {
1002 if (np->msi_flags & NV_MSI_X_ENABLED)
1003 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1004 else
1005 enable_irq(np->pci_dev->irq);
1006 } else {
1007 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1008 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1009 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1010 }
1011 }
1012
1013 static void nv_disable_irq(struct net_device *dev)
1014 {
1015 struct fe_priv *np = get_nvpriv(dev);
1016
1017 if (!using_multi_irqs(dev)) {
1018 if (np->msi_flags & NV_MSI_X_ENABLED)
1019 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1020 else
1021 disable_irq(np->pci_dev->irq);
1022 } else {
1023 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1024 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1025 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1026 }
1027 }
1028
1029 /* In MSIX mode, a write to irqmask behaves as XOR */
1030 static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask)
1031 {
1032 u8 __iomem *base = get_hwbase(dev);
1033
1034 writel(mask, base + NvRegIrqMask);
1035 }
1036
1037 static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
1038 {
1039 struct fe_priv *np = get_nvpriv(dev);
1040 u8 __iomem *base = get_hwbase(dev);
1041
1042 if (np->msi_flags & NV_MSI_X_ENABLED) {
1043 writel(mask, base + NvRegIrqMask);
1044 } else {
1045 if (np->msi_flags & NV_MSI_ENABLED)
1046 writel(0, base + NvRegMSIIrqMask);
1047 writel(0, base + NvRegIrqMask);
1048 }
1049 }
1050
1051 #define MII_READ (-1)
1052 /* mii_rw: read/write a register on the PHY.
1053 *
1054 * Caller must guarantee serialization
1055 */
1056 static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
1057 {
1058 u8 __iomem *base = get_hwbase(dev);
1059 u32 reg;
1060 int retval;
1061
1062 writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
1063
1064 reg = readl(base + NvRegMIIControl);
1065 if (reg & NVREG_MIICTL_INUSE) {
1066 writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
1067 udelay(NV_MIIBUSY_DELAY);
1068 }
1069
1070 reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
1071 if (value != MII_READ) {
1072 writel(value, base + NvRegMIIData);
1073 reg |= NVREG_MIICTL_WRITE;
1074 }
1075 writel(reg, base + NvRegMIIControl);
1076
1077 if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0,
1078 NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) {
1079 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n",
1080 dev->name, miireg, addr);
1081 retval = -1;
1082 } else if (value != MII_READ) {
1083 /* it was a write operation - fewer failures are detectable */
1084 dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n",
1085 dev->name, value, miireg, addr);
1086 retval = 0;
1087 } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
1088 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n",
1089 dev->name, miireg, addr);
1090 retval = -1;
1091 } else {
1092 retval = readl(base + NvRegMIIData);
1093 dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n",
1094 dev->name, miireg, addr, retval);
1095 }
1096
1097 return retval;
1098 }
1099
1100 static int phy_reset(struct net_device *dev, u32 bmcr_setup)
1101 {
1102 struct fe_priv *np = netdev_priv(dev);
1103 u32 miicontrol;
1104 unsigned int tries = 0;
1105
1106 miicontrol = BMCR_RESET | bmcr_setup;
1107 if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) {
1108 return -1;
1109 }
1110
1111 /* wait for 500ms */
1112 msleep(500);
1113
1114 /* must wait till reset is deasserted */
1115 while (miicontrol & BMCR_RESET) {
1116 msleep(10);
1117 miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1118 /* FIXME: 100 tries seem excessive */
1119 if (tries++ > 100)
1120 return -1;
1121 }
1122 return 0;
1123 }
1124
1125 static int phy_init(struct net_device *dev)
1126 {
1127 struct fe_priv *np = get_nvpriv(dev);
1128 u8 __iomem *base = get_hwbase(dev);
1129 u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg;
1130
1131 /* phy errata for E3016 phy */
1132 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
1133 reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1134 reg &= ~PHY_MARVELL_E3016_INITMASK;
1135 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) {
1136 printk(KERN_INFO "%s: phy write to errata reg failed.\n", pci_name(np->pci_dev));
1137 return PHY_ERROR;
1138 }
1139 }
1140 if (np->phy_oui == PHY_OUI_REALTEK) {
1141 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1142 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1143 return PHY_ERROR;
1144 }
1145 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1146 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1147 return PHY_ERROR;
1148 }
1149 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1150 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1151 return PHY_ERROR;
1152 }
1153 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1154 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1155 return PHY_ERROR;
1156 }
1157 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1158 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1159 return PHY_ERROR;
1160 }
1161 }
1162
1163 /* set advertise register */
1164 reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
1165 reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|ADVERTISE_PAUSE_ASYM|ADVERTISE_PAUSE_CAP);
1166 if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
1167 printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev));
1168 return PHY_ERROR;
1169 }
1170
1171 /* get phy interface type */
1172 phyinterface = readl(base + NvRegPhyInterface);
1173
1174 /* see if gigabit phy */
1175 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
1176 if (mii_status & PHY_GIGABIT) {
1177 np->gigabit = PHY_GIGABIT;
1178 mii_control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
1179 mii_control_1000 &= ~ADVERTISE_1000HALF;
1180 if (phyinterface & PHY_RGMII)
1181 mii_control_1000 |= ADVERTISE_1000FULL;
1182 else
1183 mii_control_1000 &= ~ADVERTISE_1000FULL;
1184
1185 if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) {
1186 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1187 return PHY_ERROR;
1188 }
1189 }
1190 else
1191 np->gigabit = 0;
1192
1193 mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1194 mii_control |= BMCR_ANENABLE;
1195
1196 /* reset the phy
1197 * (certain phys need bmcr to be setup with reset)
1198 */
1199 if (phy_reset(dev, mii_control)) {
1200 printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev));
1201 return PHY_ERROR;
1202 }
1203
1204 /* phy vendor specific configuration */
1205 if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) {
1206 phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
1207 phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2);
1208 phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4);
1209 if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) {
1210 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1211 return PHY_ERROR;
1212 }
1213 phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1214 phy_reserved |= PHY_CICADA_INIT5;
1215 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) {
1216 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1217 return PHY_ERROR;
1218 }
1219 }
1220 if (np->phy_oui == PHY_OUI_CICADA) {
1221 phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
1222 phy_reserved |= PHY_CICADA_INIT6;
1223 if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) {
1224 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1225 return PHY_ERROR;
1226 }
1227 }
1228 if (np->phy_oui == PHY_OUI_VITESSE) {
1229 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1)) {
1230 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1231 return PHY_ERROR;
1232 }
1233 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2)) {
1234 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1235 return PHY_ERROR;
1236 }
1237 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1238 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1239 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1240 return PHY_ERROR;
1241 }
1242 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1243 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1244 phy_reserved |= PHY_VITESSE_INIT3;
1245 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1246 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1247 return PHY_ERROR;
1248 }
1249 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4)) {
1250 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1251 return PHY_ERROR;
1252 }
1253 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5)) {
1254 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1255 return PHY_ERROR;
1256 }
1257 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1258 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1259 phy_reserved |= PHY_VITESSE_INIT3;
1260 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1261 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1262 return PHY_ERROR;
1263 }
1264 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1265 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1266 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1267 return PHY_ERROR;
1268 }
1269 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6)) {
1270 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1271 return PHY_ERROR;
1272 }
1273 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7)) {
1274 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1275 return PHY_ERROR;
1276 }
1277 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1278 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1279 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1280 return PHY_ERROR;
1281 }
1282 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1283 phy_reserved &= ~PHY_VITESSE_INIT_MSK2;
1284 phy_reserved |= PHY_VITESSE_INIT8;
1285 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1286 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1287 return PHY_ERROR;
1288 }
1289 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9)) {
1290 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1291 return PHY_ERROR;
1292 }
1293 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10)) {
1294 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1295 return PHY_ERROR;
1296 }
1297 }
1298 if (np->phy_oui == PHY_OUI_REALTEK) {
1299 /* reset could have cleared these out, set them back */
1300 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1301 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1302 return PHY_ERROR;
1303 }
1304 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1305 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1306 return PHY_ERROR;
1307 }
1308 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1309 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1310 return PHY_ERROR;
1311 }
1312 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1313 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1314 return PHY_ERROR;
1315 }
1316 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1317 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1318 return PHY_ERROR;
1319 }
1320 }
1321
1322 /* some phys clear out pause advertisment on reset, set it back */
1323 mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
1324
1325 /* restart auto negotiation */
1326 mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1327 mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
1328 if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
1329 return PHY_ERROR;
1330 }
1331
1332 return 0;
1333 }
1334
1335 static void nv_start_rx(struct net_device *dev)
1336 {
1337 struct fe_priv *np = netdev_priv(dev);
1338 u8 __iomem *base = get_hwbase(dev);
1339 u32 rx_ctrl = readl(base + NvRegReceiverControl);
1340
1341 dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
1342 /* Already running? Stop it. */
1343 if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
1344 rx_ctrl &= ~NVREG_RCVCTL_START;
1345 writel(rx_ctrl, base + NvRegReceiverControl);
1346 pci_push(base);
1347 }
1348 writel(np->linkspeed, base + NvRegLinkSpeed);
1349 pci_push(base);
1350 rx_ctrl |= NVREG_RCVCTL_START;
1351 if (np->mac_in_use)
1352 rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
1353 writel(rx_ctrl, base + NvRegReceiverControl);
1354 dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
1355 dev->name, np->duplex, np->linkspeed);
1356 pci_push(base);
1357 }
1358
1359 static void nv_stop_rx(struct net_device *dev)
1360 {
1361 struct fe_priv *np = netdev_priv(dev);
1362 u8 __iomem *base = get_hwbase(dev);
1363 u32 rx_ctrl = readl(base + NvRegReceiverControl);
1364
1365 dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
1366 if (!np->mac_in_use)
1367 rx_ctrl &= ~NVREG_RCVCTL_START;
1368 else
1369 rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
1370 writel(rx_ctrl, base + NvRegReceiverControl);
1371 reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
1372 NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
1373 KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
1374
1375 udelay(NV_RXSTOP_DELAY2);
1376 if (!np->mac_in_use)
1377 writel(0, base + NvRegLinkSpeed);
1378 }
1379
1380 static void nv_start_tx(struct net_device *dev)
1381 {
1382 struct fe_priv *np = netdev_priv(dev);
1383 u8 __iomem *base = get_hwbase(dev);
1384 u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1385
1386 dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name);
1387 tx_ctrl |= NVREG_XMITCTL_START;
1388 if (np->mac_in_use)
1389 tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
1390 writel(tx_ctrl, base + NvRegTransmitterControl);
1391 pci_push(base);
1392 }
1393
1394 static void nv_stop_tx(struct net_device *dev)
1395 {
1396 struct fe_priv *np = netdev_priv(dev);
1397 u8 __iomem *base = get_hwbase(dev);
1398 u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1399
1400 dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
1401 if (!np->mac_in_use)
1402 tx_ctrl &= ~NVREG_XMITCTL_START;
1403 else
1404 tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
1405 writel(tx_ctrl, base + NvRegTransmitterControl);
1406 reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
1407 NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
1408 KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
1409
1410 udelay(NV_TXSTOP_DELAY2);
1411 if (!np->mac_in_use)
1412 writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
1413 base + NvRegTransmitPoll);
1414 }
1415
1416 static void nv_txrx_reset(struct net_device *dev)
1417 {
1418 struct fe_priv *np = netdev_priv(dev);
1419 u8 __iomem *base = get_hwbase(dev);
1420
1421 dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name);
1422 writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1423 pci_push(base);
1424 udelay(NV_TXRX_RESET_DELAY);
1425 writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1426 pci_push(base);
1427 }
1428
1429 static void nv_mac_reset(struct net_device *dev)
1430 {
1431 struct fe_priv *np = netdev_priv(dev);
1432 u8 __iomem *base = get_hwbase(dev);
1433
1434 dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name);
1435 writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1436 pci_push(base);
1437 writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset);
1438 pci_push(base);
1439 udelay(NV_MAC_RESET_DELAY);
1440 writel(0, base + NvRegMacReset);
1441 pci_push(base);
1442 udelay(NV_MAC_RESET_DELAY);
1443 writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1444 pci_push(base);
1445 }
1446
1447 static void nv_get_hw_stats(struct net_device *dev)
1448 {
1449 struct fe_priv *np = netdev_priv(dev);
1450 u8 __iomem *base = get_hwbase(dev);
1451
1452 np->estats.tx_bytes += readl(base + NvRegTxCnt);
1453 np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt);
1454 np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt);
1455 np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt);
1456 np->estats.tx_late_collision += readl(base + NvRegTxLateCol);
1457 np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow);
1458 np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier);
1459 np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef);
1460 np->estats.tx_retry_error += readl(base + NvRegTxRetryErr);
1461 np->estats.rx_frame_error += readl(base + NvRegRxFrameErr);
1462 np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte);
1463 np->estats.rx_late_collision += readl(base + NvRegRxLateCol);
1464 np->estats.rx_runt += readl(base + NvRegRxRunt);
1465 np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong);
1466 np->estats.rx_over_errors += readl(base + NvRegRxOverflow);
1467 np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr);
1468 np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr);
1469 np->estats.rx_length_error += readl(base + NvRegRxLenErr);
1470 np->estats.rx_unicast += readl(base + NvRegRxUnicast);
1471 np->estats.rx_multicast += readl(base + NvRegRxMulticast);
1472 np->estats.rx_broadcast += readl(base + NvRegRxBroadcast);
1473 np->estats.rx_packets =
1474 np->estats.rx_unicast +
1475 np->estats.rx_multicast +
1476 np->estats.rx_broadcast;
1477 np->estats.rx_errors_total =
1478 np->estats.rx_crc_errors +
1479 np->estats.rx_over_errors +
1480 np->estats.rx_frame_error +
1481 (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) +
1482 np->estats.rx_late_collision +
1483 np->estats.rx_runt +
1484 np->estats.rx_frame_too_long;
1485 np->estats.tx_errors_total =
1486 np->estats.tx_late_collision +
1487 np->estats.tx_fifo_errors +
1488 np->estats.tx_carrier_errors +
1489 np->estats.tx_excess_deferral +
1490 np->estats.tx_retry_error;
1491
1492 if (np->driver_data & DEV_HAS_STATISTICS_V2) {
1493 np->estats.tx_deferral += readl(base + NvRegTxDef);
1494 np->estats.tx_packets += readl(base + NvRegTxFrame);
1495 np->estats.rx_bytes += readl(base + NvRegRxCnt);
1496 np->estats.tx_pause += readl(base + NvRegTxPause);
1497 np->estats.rx_pause += readl(base + NvRegRxPause);
1498 np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
1499 }
1500 }
1501
1502 /*
1503 * nv_get_stats: dev->get_stats function
1504 * Get latest stats value from the nic.
1505 * Called with read_lock(&dev_base_lock) held for read -
1506 * only synchronized against unregister_netdevice.
1507 */
1508 static struct net_device_stats *nv_get_stats(struct net_device *dev)
1509 {
1510 struct fe_priv *np = netdev_priv(dev);
1511
1512 /* If the nic supports hw counters then retrieve latest values */
1513 if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2)) {
1514 nv_get_hw_stats(dev);
1515
1516 /* copy to net_device stats */
1517 dev->stats.tx_bytes = np->estats.tx_bytes;
1518 dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors;
1519 dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors;
1520 dev->stats.rx_crc_errors = np->estats.rx_crc_errors;
1521 dev->stats.rx_over_errors = np->estats.rx_over_errors;
1522 dev->stats.rx_errors = np->estats.rx_errors_total;
1523 dev->stats.tx_errors = np->estats.tx_errors_total;
1524 }
1525
1526 return &dev->stats;
1527 }
1528
1529 /*
1530 * nv_alloc_rx: fill rx ring entries.
1531 * Return 1 if the allocations for the skbs failed and the
1532 * rx engine is without Available descriptors
1533 */
1534 static int nv_alloc_rx(struct net_device *dev)
1535 {
1536 struct fe_priv *np = netdev_priv(dev);
1537 struct ring_desc* less_rx;
1538
1539 less_rx = np->get_rx.orig;
1540 if (less_rx-- == np->first_rx.orig)
1541 less_rx = np->last_rx.orig;
1542
1543 while (np->put_rx.orig != less_rx) {
1544 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1545 if (skb) {
1546 np->put_rx_ctx->skb = skb;
1547 np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1548 skb->data,
1549 skb_tailroom(skb),
1550 PCI_DMA_FROMDEVICE);
1551 np->put_rx_ctx->dma_len = skb_tailroom(skb);
1552 np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
1553 wmb();
1554 np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
1555 if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
1556 np->put_rx.orig = np->first_rx.orig;
1557 if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1558 np->put_rx_ctx = np->first_rx_ctx;
1559 } else {
1560 return 1;
1561 }
1562 }
1563 return 0;
1564 }
1565
1566 static int nv_alloc_rx_optimized(struct net_device *dev)
1567 {
1568 struct fe_priv *np = netdev_priv(dev);
1569 struct ring_desc_ex* less_rx;
1570
1571 less_rx = np->get_rx.ex;
1572 if (less_rx-- == np->first_rx.ex)
1573 less_rx = np->last_rx.ex;
1574
1575 while (np->put_rx.ex != less_rx) {
1576 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1577 if (skb) {
1578 np->put_rx_ctx->skb = skb;
1579 np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1580 skb->data,
1581 skb_tailroom(skb),
1582 PCI_DMA_FROMDEVICE);
1583 np->put_rx_ctx->dma_len = skb_tailroom(skb);
1584 np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
1585 np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
1586 wmb();
1587 np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
1588 if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
1589 np->put_rx.ex = np->first_rx.ex;
1590 if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1591 np->put_rx_ctx = np->first_rx_ctx;
1592 } else {
1593 return 1;
1594 }
1595 }
1596 return 0;
1597 }
1598
1599 /* If rx bufs are exhausted called after 50ms to attempt to refresh */
1600 #ifdef CONFIG_FORCEDETH_NAPI
1601 static void nv_do_rx_refill(unsigned long data)
1602 {
1603 struct net_device *dev = (struct net_device *) data;
1604 struct fe_priv *np = netdev_priv(dev);
1605
1606 /* Just reschedule NAPI rx processing */
1607 netif_rx_schedule(dev, &np->napi);
1608 }
1609 #else
1610 static void nv_do_rx_refill(unsigned long data)
1611 {
1612 struct net_device *dev = (struct net_device *) data;
1613 struct fe_priv *np = netdev_priv(dev);
1614 int retcode;
1615
1616 if (!using_multi_irqs(dev)) {
1617 if (np->msi_flags & NV_MSI_X_ENABLED)
1618 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1619 else
1620 disable_irq(np->pci_dev->irq);
1621 } else {
1622 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1623 }
1624 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1625 retcode = nv_alloc_rx(dev);
1626 else
1627 retcode = nv_alloc_rx_optimized(dev);
1628 if (retcode) {
1629 spin_lock_irq(&np->lock);
1630 if (!np->in_shutdown)
1631 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
1632 spin_unlock_irq(&np->lock);
1633 }
1634 if (!using_multi_irqs(dev)) {
1635 if (np->msi_flags & NV_MSI_X_ENABLED)
1636 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1637 else
1638 enable_irq(np->pci_dev->irq);
1639 } else {
1640 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1641 }
1642 }
1643 #endif
1644
1645 static void nv_init_rx(struct net_device *dev)
1646 {
1647 struct fe_priv *np = netdev_priv(dev);
1648 int i;
1649 np->get_rx = np->put_rx = np->first_rx = np->rx_ring;
1650 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1651 np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
1652 else
1653 np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
1654 np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb;
1655 np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
1656
1657 for (i = 0; i < np->rx_ring_size; i++) {
1658 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1659 np->rx_ring.orig[i].flaglen = 0;
1660 np->rx_ring.orig[i].buf = 0;
1661 } else {
1662 np->rx_ring.ex[i].flaglen = 0;
1663 np->rx_ring.ex[i].txvlan = 0;
1664 np->rx_ring.ex[i].bufhigh = 0;
1665 np->rx_ring.ex[i].buflow = 0;
1666 }
1667 np->rx_skb[i].skb = NULL;
1668 np->rx_skb[i].dma = 0;
1669 }
1670 }
1671
1672 static void nv_init_tx(struct net_device *dev)
1673 {
1674 struct fe_priv *np = netdev_priv(dev);
1675 int i;
1676 np->get_tx = np->put_tx = np->first_tx = np->tx_ring;
1677 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1678 np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1];
1679 else
1680 np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1];
1681 np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb;
1682 np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1];
1683
1684 for (i = 0; i < np->tx_ring_size; i++) {
1685 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1686 np->tx_ring.orig[i].flaglen = 0;
1687 np->tx_ring.orig[i].buf = 0;
1688 } else {
1689 np->tx_ring.ex[i].flaglen = 0;
1690 np->tx_ring.ex[i].txvlan = 0;
1691 np->tx_ring.ex[i].bufhigh = 0;
1692 np->tx_ring.ex[i].buflow = 0;
1693 }
1694 np->tx_skb[i].skb = NULL;
1695 np->tx_skb[i].dma = 0;
1696 }
1697 }
1698
1699 static int nv_init_ring(struct net_device *dev)
1700 {
1701 struct fe_priv *np = netdev_priv(dev);
1702
1703 nv_init_tx(dev);
1704 nv_init_rx(dev);
1705 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1706 return nv_alloc_rx(dev);
1707 else
1708 return nv_alloc_rx_optimized(dev);
1709 }
1710
1711 static int nv_release_txskb(struct net_device *dev, struct nv_skb_map* tx_skb)
1712 {
1713 struct fe_priv *np = netdev_priv(dev);
1714
1715 if (tx_skb->dma) {
1716 pci_unmap_page(np->pci_dev, tx_skb->dma,
1717 tx_skb->dma_len,
1718 PCI_DMA_TODEVICE);
1719 tx_skb->dma = 0;
1720 }
1721 if (tx_skb->skb) {
1722 dev_kfree_skb_any(tx_skb->skb);
1723 tx_skb->skb = NULL;
1724 return 1;
1725 } else {
1726 return 0;
1727 }
1728 }
1729
1730 static void nv_drain_tx(struct net_device *dev)
1731 {
1732 struct fe_priv *np = netdev_priv(dev);
1733 unsigned int i;
1734
1735 for (i = 0; i < np->tx_ring_size; i++) {
1736 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1737 np->tx_ring.orig[i].flaglen = 0;
1738 np->tx_ring.orig[i].buf = 0;
1739 } else {
1740 np->tx_ring.ex[i].flaglen = 0;
1741 np->tx_ring.ex[i].txvlan = 0;
1742 np->tx_ring.ex[i].bufhigh = 0;
1743 np->tx_ring.ex[i].buflow = 0;
1744 }
1745 if (nv_release_txskb(dev, &np->tx_skb[i]))
1746 dev->stats.tx_dropped++;
1747 }
1748 }
1749
1750 static void nv_drain_rx(struct net_device *dev)
1751 {
1752 struct fe_priv *np = netdev_priv(dev);
1753 int i;
1754
1755 for (i = 0; i < np->rx_ring_size; i++) {
1756 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1757 np->rx_ring.orig[i].flaglen = 0;
1758 np->rx_ring.orig[i].buf = 0;
1759 } else {
1760 np->rx_ring.ex[i].flaglen = 0;
1761 np->rx_ring.ex[i].txvlan = 0;
1762 np->rx_ring.ex[i].bufhigh = 0;
1763 np->rx_ring.ex[i].buflow = 0;
1764 }
1765 wmb();
1766 if (np->rx_skb[i].skb) {
1767 pci_unmap_single(np->pci_dev, np->rx_skb[i].dma,
1768 (skb_end_pointer(np->rx_skb[i].skb) -
1769 np->rx_skb[i].skb->data),
1770 PCI_DMA_FROMDEVICE);
1771 dev_kfree_skb(np->rx_skb[i].skb);
1772 np->rx_skb[i].skb = NULL;
1773 }
1774 }
1775 }
1776
1777 static void drain_ring(struct net_device *dev)
1778 {
1779 nv_drain_tx(dev);
1780 nv_drain_rx(dev);
1781 }
1782
1783 static inline u32 nv_get_empty_tx_slots(struct fe_priv *np)
1784 {
1785 return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size));
1786 }
1787
1788 /*
1789 * nv_start_xmit: dev->hard_start_xmit function
1790 * Called with netif_tx_lock held.
1791 */
1792 static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
1793 {
1794 struct fe_priv *np = netdev_priv(dev);
1795 u32 tx_flags = 0;
1796 u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
1797 unsigned int fragments = skb_shinfo(skb)->nr_frags;
1798 unsigned int i;
1799 u32 offset = 0;
1800 u32 bcnt;
1801 u32 size = skb->len-skb->data_len;
1802 u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1803 u32 empty_slots;
1804 struct ring_desc* put_tx;
1805 struct ring_desc* start_tx;
1806 struct ring_desc* prev_tx;
1807 struct nv_skb_map* prev_tx_ctx;
1808
1809 /* add fragments to entries count */
1810 for (i = 0; i < fragments; i++) {
1811 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
1812 ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1813 }
1814
1815 empty_slots = nv_get_empty_tx_slots(np);
1816 if (unlikely(empty_slots <= entries)) {
1817 spin_lock_irq(&np->lock);
1818 netif_stop_queue(dev);
1819 np->tx_stop = 1;
1820 spin_unlock_irq(&np->lock);
1821 return NETDEV_TX_BUSY;
1822 }
1823
1824 start_tx = put_tx = np->put_tx.orig;
1825
1826 /* setup the header buffer */
1827 do {
1828 prev_tx = put_tx;
1829 prev_tx_ctx = np->put_tx_ctx;
1830 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1831 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
1832 PCI_DMA_TODEVICE);
1833 np->put_tx_ctx->dma_len = bcnt;
1834 put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
1835 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1836
1837 tx_flags = np->tx_flags;
1838 offset += bcnt;
1839 size -= bcnt;
1840 if (unlikely(put_tx++ == np->last_tx.orig))
1841 put_tx = np->first_tx.orig;
1842 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1843 np->put_tx_ctx = np->first_tx_ctx;
1844 } while (size);
1845
1846 /* setup the fragments */
1847 for (i = 0; i < fragments; i++) {
1848 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1849 u32 size = frag->size;
1850 offset = 0;
1851
1852 do {
1853 prev_tx = put_tx;
1854 prev_tx_ctx = np->put_tx_ctx;
1855 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1856 np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
1857 PCI_DMA_TODEVICE);
1858 np->put_tx_ctx->dma_len = bcnt;
1859 put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
1860 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1861
1862 offset += bcnt;
1863 size -= bcnt;
1864 if (unlikely(put_tx++ == np->last_tx.orig))
1865 put_tx = np->first_tx.orig;
1866 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1867 np->put_tx_ctx = np->first_tx_ctx;
1868 } while (size);
1869 }
1870
1871 /* set last fragment flag */
1872 prev_tx->flaglen |= cpu_to_le32(tx_flags_extra);
1873
1874 /* save skb in this slot's context area */
1875 prev_tx_ctx->skb = skb;
1876
1877 if (skb_is_gso(skb))
1878 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
1879 else
1880 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
1881 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
1882
1883 spin_lock_irq(&np->lock);
1884
1885 /* set tx flags */
1886 start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
1887 np->put_tx.orig = put_tx;
1888
1889 spin_unlock_irq(&np->lock);
1890
1891 dprintk(KERN_DEBUG "%s: nv_start_xmit: entries %d queued for transmission. tx_flags_extra: %x\n",
1892 dev->name, entries, tx_flags_extra);
1893 {
1894 int j;
1895 for (j=0; j<64; j++) {
1896 if ((j%16) == 0)
1897 dprintk("\n%03x:", j);
1898 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
1899 }
1900 dprintk("\n");
1901 }
1902
1903 dev->trans_start = jiffies;
1904 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
1905 return NETDEV_TX_OK;
1906 }
1907
1908 static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev)
1909 {
1910 struct fe_priv *np = netdev_priv(dev);
1911 u32 tx_flags = 0;
1912 u32 tx_flags_extra;
1913 unsigned int fragments = skb_shinfo(skb)->nr_frags;
1914 unsigned int i;
1915 u32 offset = 0;
1916 u32 bcnt;
1917 u32 size = skb->len-skb->data_len;
1918 u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1919 u32 empty_slots;
1920 struct ring_desc_ex* put_tx;
1921 struct ring_desc_ex* start_tx;
1922 struct ring_desc_ex* prev_tx;
1923 struct nv_skb_map* prev_tx_ctx;
1924
1925 /* add fragments to entries count */
1926 for (i = 0; i < fragments; i++) {
1927 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
1928 ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1929 }
1930
1931 empty_slots = nv_get_empty_tx_slots(np);
1932 if (unlikely(empty_slots <= entries)) {
1933 spin_lock_irq(&np->lock);
1934 netif_stop_queue(dev);
1935 np->tx_stop = 1;
1936 spin_unlock_irq(&np->lock);
1937 return NETDEV_TX_BUSY;
1938 }
1939
1940 start_tx = put_tx = np->put_tx.ex;
1941
1942 /* setup the header buffer */
1943 do {
1944 prev_tx = put_tx;
1945 prev_tx_ctx = np->put_tx_ctx;
1946 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1947 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
1948 PCI_DMA_TODEVICE);
1949 np->put_tx_ctx->dma_len = bcnt;
1950 put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
1951 put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
1952 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1953
1954 tx_flags = NV_TX2_VALID;
1955 offset += bcnt;
1956 size -= bcnt;
1957 if (unlikely(put_tx++ == np->last_tx.ex))
1958 put_tx = np->first_tx.ex;
1959 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1960 np->put_tx_ctx = np->first_tx_ctx;
1961 } while (size);
1962
1963 /* setup the fragments */
1964 for (i = 0; i < fragments; i++) {
1965 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1966 u32 size = frag->size;
1967 offset = 0;
1968
1969 do {
1970 prev_tx = put_tx;
1971 prev_tx_ctx = np->put_tx_ctx;
1972 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1973 np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
1974 PCI_DMA_TODEVICE);
1975 np->put_tx_ctx->dma_len = bcnt;
1976 put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
1977 put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
1978 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1979
1980 offset += bcnt;
1981 size -= bcnt;
1982 if (unlikely(put_tx++ == np->last_tx.ex))
1983 put_tx = np->first_tx.ex;
1984 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1985 np->put_tx_ctx = np->first_tx_ctx;
1986 } while (size);
1987 }
1988
1989 /* set last fragment flag */
1990 prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET);
1991
1992 /* save skb in this slot's context area */
1993 prev_tx_ctx->skb = skb;
1994
1995 if (skb_is_gso(skb))
1996 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
1997 else
1998 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
1999 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
2000
2001 /* vlan tag */
2002 if (likely(!np->vlangrp)) {
2003 start_tx->txvlan = 0;
2004 } else {
2005 if (vlan_tx_tag_present(skb))
2006 start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT | vlan_tx_tag_get(skb));
2007 else
2008 start_tx->txvlan = 0;
2009 }
2010
2011 spin_lock_irq(&np->lock);
2012
2013 /* set tx flags */
2014 start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
2015 np->put_tx.ex = put_tx;
2016
2017 spin_unlock_irq(&np->lock);
2018
2019 dprintk(KERN_DEBUG "%s: nv_start_xmit_optimized: entries %d queued for transmission. tx_flags_extra: %x\n",
2020 dev->name, entries, tx_flags_extra);
2021 {
2022 int j;
2023 for (j=0; j<64; j++) {
2024 if ((j%16) == 0)
2025 dprintk("\n%03x:", j);
2026 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2027 }
2028 dprintk("\n");
2029 }
2030
2031 dev->trans_start = jiffies;
2032 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2033 return NETDEV_TX_OK;
2034 }
2035
2036 /*
2037 * nv_tx_done: check for completed packets, release the skbs.
2038 *
2039 * Caller must own np->lock.
2040 */
2041 static void nv_tx_done(struct net_device *dev)
2042 {
2043 struct fe_priv *np = netdev_priv(dev);
2044 u32 flags;
2045 struct ring_desc* orig_get_tx = np->get_tx.orig;
2046
2047 while ((np->get_tx.orig != np->put_tx.orig) &&
2048 !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID)) {
2049
2050 dprintk(KERN_DEBUG "%s: nv_tx_done: flags 0x%x.\n",
2051 dev->name, flags);
2052
2053 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2054 np->get_tx_ctx->dma_len,
2055 PCI_DMA_TODEVICE);
2056 np->get_tx_ctx->dma = 0;
2057
2058 if (np->desc_ver == DESC_VER_1) {
2059 if (flags & NV_TX_LASTPACKET) {
2060 if (flags & NV_TX_ERROR) {
2061 if (flags & NV_TX_UNDERFLOW)
2062 dev->stats.tx_fifo_errors++;
2063 if (flags & NV_TX_CARRIERLOST)
2064 dev->stats.tx_carrier_errors++;
2065 dev->stats.tx_errors++;
2066 } else {
2067 dev->stats.tx_packets++;
2068 dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2069 }
2070 dev_kfree_skb_any(np->get_tx_ctx->skb);
2071 np->get_tx_ctx->skb = NULL;
2072 }
2073 } else {
2074 if (flags & NV_TX2_LASTPACKET) {
2075 if (flags & NV_TX2_ERROR) {
2076 if (flags & NV_TX2_UNDERFLOW)
2077 dev->stats.tx_fifo_errors++;
2078 if (flags & NV_TX2_CARRIERLOST)
2079 dev->stats.tx_carrier_errors++;
2080 dev->stats.tx_errors++;
2081 } else {
2082 dev->stats.tx_packets++;
2083 dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2084 }
2085 dev_kfree_skb_any(np->get_tx_ctx->skb);
2086 np->get_tx_ctx->skb = NULL;
2087 }
2088 }
2089 if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
2090 np->get_tx.orig = np->first_tx.orig;
2091 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2092 np->get_tx_ctx = np->first_tx_ctx;
2093 }
2094 if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) {
2095 np->tx_stop = 0;
2096 netif_wake_queue(dev);
2097 }
2098 }
2099
2100 static void nv_tx_done_optimized(struct net_device *dev, int limit)
2101 {
2102 struct fe_priv *np = netdev_priv(dev);
2103 u32 flags;
2104 struct ring_desc_ex* orig_get_tx = np->get_tx.ex;
2105
2106 while ((np->get_tx.ex != np->put_tx.ex) &&
2107 !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX_VALID) &&
2108 (limit-- > 0)) {
2109
2110 dprintk(KERN_DEBUG "%s: nv_tx_done_optimized: flags 0x%x.\n",
2111 dev->name, flags);
2112
2113 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2114 np->get_tx_ctx->dma_len,
2115 PCI_DMA_TODEVICE);
2116 np->get_tx_ctx->dma = 0;
2117
2118 if (flags & NV_TX2_LASTPACKET) {
2119 if (!(flags & NV_TX2_ERROR))
2120 dev->stats.tx_packets++;
2121 dev_kfree_skb_any(np->get_tx_ctx->skb);
2122 np->get_tx_ctx->skb = NULL;
2123 }
2124 if (unlikely(np->get_tx.ex++ == np->last_tx.ex))
2125 np->get_tx.ex = np->first_tx.ex;
2126 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2127 np->get_tx_ctx = np->first_tx_ctx;
2128 }
2129 if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) {
2130 np->tx_stop = 0;
2131 netif_wake_queue(dev);
2132 }
2133 }
2134
2135 /*
2136 * nv_tx_timeout: dev->tx_timeout function
2137 * Called with netif_tx_lock held.
2138 */
2139 static void nv_tx_timeout(struct net_device *dev)
2140 {
2141 struct fe_priv *np = netdev_priv(dev);
2142 u8 __iomem *base = get_hwbase(dev);
2143 u32 status;
2144
2145 if (np->msi_flags & NV_MSI_X_ENABLED)
2146 status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
2147 else
2148 status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
2149
2150 printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, status);
2151
2152 {
2153 int i;
2154
2155 printk(KERN_INFO "%s: Ring at %lx\n",
2156 dev->name, (unsigned long)np->ring_addr);
2157 printk(KERN_INFO "%s: Dumping tx registers\n", dev->name);
2158 for (i=0;i<=np->register_size;i+= 32) {
2159 printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
2160 i,
2161 readl(base + i + 0), readl(base + i + 4),
2162 readl(base + i + 8), readl(base + i + 12),
2163 readl(base + i + 16), readl(base + i + 20),
2164 readl(base + i + 24), readl(base + i + 28));
2165 }
2166 printk(KERN_INFO "%s: Dumping tx ring\n", dev->name);
2167 for (i=0;i<np->tx_ring_size;i+= 4) {
2168 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
2169 printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n",
2170 i,
2171 le32_to_cpu(np->tx_ring.orig[i].buf),
2172 le32_to_cpu(np->tx_ring.orig[i].flaglen),
2173 le32_to_cpu(np->tx_ring.orig[i+1].buf),
2174 le32_to_cpu(np->tx_ring.orig[i+1].flaglen),
2175 le32_to_cpu(np->tx_ring.orig[i+2].buf),
2176 le32_to_cpu(np->tx_ring.orig[i+2].flaglen),
2177 le32_to_cpu(np->tx_ring.orig[i+3].buf),
2178 le32_to_cpu(np->tx_ring.orig[i+3].flaglen));
2179 } else {
2180 printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n",
2181 i,
2182 le32_to_cpu(np->tx_ring.ex[i].bufhigh),
2183 le32_to_cpu(np->tx_ring.ex[i].buflow),
2184 le32_to_cpu(np->tx_ring.ex[i].flaglen),
2185 le32_to_cpu(np->tx_ring.ex[i+1].bufhigh),
2186 le32_to_cpu(np->tx_ring.ex[i+1].buflow),
2187 le32_to_cpu(np->tx_ring.ex[i+1].flaglen),
2188 le32_to_cpu(np->tx_ring.ex[i+2].bufhigh),
2189 le32_to_cpu(np->tx_ring.ex[i+2].buflow),
2190 le32_to_cpu(np->tx_ring.ex[i+2].flaglen),
2191 le32_to_cpu(np->tx_ring.ex[i+3].bufhigh),
2192 le32_to_cpu(np->tx_ring.ex[i+3].buflow),
2193 le32_to_cpu(np->tx_ring.ex[i+3].flaglen));
2194 }
2195 }
2196 }
2197
2198 spin_lock_irq(&np->lock);
2199
2200 /* 1) stop tx engine */
2201 nv_stop_tx(dev);
2202
2203 /* 2) check that the packets were not sent already: */
2204 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
2205 nv_tx_done(dev);
2206 else
2207 nv_tx_done_optimized(dev, np->tx_ring_size);
2208
2209 /* 3) if there are dead entries: clear everything */
2210 if (np->get_tx_ctx != np->put_tx_ctx) {
2211 printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name);
2212 nv_drain_tx(dev);
2213 nv_init_tx(dev);
2214 setup_hw_rings(dev, NV_SETUP_TX_RING);
2215 }
2216
2217 netif_wake_queue(dev);
2218
2219 /* 4) restart tx engine */
2220 nv_start_tx(dev);
2221 spin_unlock_irq(&np->lock);
2222 }
2223
2224 /*
2225 * Called when the nic notices a mismatch between the actual data len on the
2226 * wire and the len indicated in the 802 header
2227 */
2228 static int nv_getlen(struct net_device *dev, void *packet, int datalen)
2229 {
2230 int hdrlen; /* length of the 802 header */
2231 int protolen; /* length as stored in the proto field */
2232
2233 /* 1) calculate len according to header */
2234 if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) {
2235 protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto );
2236 hdrlen = VLAN_HLEN;
2237 } else {
2238 protolen = ntohs( ((struct ethhdr *)packet)->h_proto);
2239 hdrlen = ETH_HLEN;
2240 }
2241 dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n",
2242 dev->name, datalen, protolen, hdrlen);
2243 if (protolen > ETH_DATA_LEN)
2244 return datalen; /* Value in proto field not a len, no checks possible */
2245
2246 protolen += hdrlen;
2247 /* consistency checks: */
2248 if (datalen > ETH_ZLEN) {
2249 if (datalen >= protolen) {
2250 /* more data on wire than in 802 header, trim of
2251 * additional data.
2252 */
2253 dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2254 dev->name, protolen);
2255 return protolen;
2256 } else {
2257 /* less data on wire than mentioned in header.
2258 * Discard the packet.
2259 */
2260 dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n",
2261 dev->name);
2262 return -1;
2263 }
2264 } else {
2265 /* short packet. Accept only if 802 values are also short */
2266 if (protolen > ETH_ZLEN) {
2267 dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n",
2268 dev->name);
2269 return -1;
2270 }
2271 dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2272 dev->name, datalen);
2273 return datalen;
2274 }
2275 }
2276
2277 static int nv_rx_process(struct net_device *dev, int limit)
2278 {
2279 struct fe_priv *np = netdev_priv(dev);
2280 u32 flags;
2281 int rx_work = 0;
2282 struct sk_buff *skb;
2283 int len;
2284
2285 while((np->get_rx.orig != np->put_rx.orig) &&
2286 !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) &&
2287 (rx_work < limit)) {
2288
2289 dprintk(KERN_DEBUG "%s: nv_rx_process: flags 0x%x.\n",
2290 dev->name, flags);
2291
2292 /*
2293 * the packet is for us - immediately tear down the pci mapping.
2294 * TODO: check if a prefetch of the first cacheline improves
2295 * the performance.
2296 */
2297 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2298 np->get_rx_ctx->dma_len,
2299 PCI_DMA_FROMDEVICE);
2300 skb = np->get_rx_ctx->skb;
2301 np->get_rx_ctx->skb = NULL;
2302
2303 {
2304 int j;
2305 dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2306 for (j=0; j<64; j++) {
2307 if ((j%16) == 0)
2308 dprintk("\n%03x:", j);
2309 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2310 }
2311 dprintk("\n");
2312 }
2313 /* look at what we actually got: */
2314 if (np->desc_ver == DESC_VER_1) {
2315 if (likely(flags & NV_RX_DESCRIPTORVALID)) {
2316 len = flags & LEN_MASK_V1;
2317 if (unlikely(flags & NV_RX_ERROR)) {
2318 if (flags & NV_RX_ERROR4) {
2319 len = nv_getlen(dev, skb->data, len);
2320 if (len < 0) {
2321 dev->stats.rx_errors++;
2322 dev_kfree_skb(skb);
2323 goto next_pkt;
2324 }
2325 }
2326 /* framing errors are soft errors */
2327 else if (flags & NV_RX_FRAMINGERR) {
2328 if (flags & NV_RX_SUBSTRACT1) {
2329 len--;
2330 }
2331 }
2332 /* the rest are hard errors */
2333 else {
2334 if (flags & NV_RX_MISSEDFRAME)
2335 dev->stats.rx_missed_errors++;
2336 if (flags & NV_RX_CRCERR)
2337 dev->stats.rx_crc_errors++;
2338 if (flags & NV_RX_OVERFLOW)
2339 dev->stats.rx_over_errors++;
2340 dev->stats.rx_errors++;
2341 dev_kfree_skb(skb);
2342 goto next_pkt;
2343 }
2344 }
2345 } else {
2346 dev_kfree_skb(skb);
2347 goto next_pkt;
2348 }
2349 } else {
2350 if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2351 len = flags & LEN_MASK_V2;
2352 if (unlikely(flags & NV_RX2_ERROR)) {
2353 if (flags & NV_RX2_ERROR4) {
2354 len = nv_getlen(dev, skb->data, len);
2355 if (len < 0) {
2356 dev->stats.rx_errors++;
2357 dev_kfree_skb(skb);
2358 goto next_pkt;
2359 }
2360 }
2361 /* framing errors are soft errors */
2362 else if (flags & NV_RX2_FRAMINGERR) {
2363 if (flags & NV_RX2_SUBSTRACT1) {
2364 len--;
2365 }
2366 }
2367 /* the rest are hard errors */
2368 else {
2369 if (flags & NV_RX2_CRCERR)
2370 dev->stats.rx_crc_errors++;
2371 if (flags & NV_RX2_OVERFLOW)
2372 dev->stats.rx_over_errors++;
2373 dev->stats.rx_errors++;
2374 dev_kfree_skb(skb);
2375 goto next_pkt;
2376 }
2377 }
2378 if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK2)/*ip and tcp */ {
2379 skb->ip_summed = CHECKSUM_UNNECESSARY;
2380 } else {
2381 if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK1 ||
2382 (flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK3) {
2383 skb->ip_summed = CHECKSUM_UNNECESSARY;
2384 }
2385 }
2386 } else {
2387 dev_kfree_skb(skb);
2388 goto next_pkt;
2389 }
2390 }
2391 /* got a valid packet - forward it to the network core */
2392 skb_put(skb, len);
2393 skb->protocol = eth_type_trans(skb, dev);
2394 dprintk(KERN_DEBUG "%s: nv_rx_process: %d bytes, proto %d accepted.\n",
2395 dev->name, len, skb->protocol);
2396 #ifdef CONFIG_FORCEDETH_NAPI
2397 netif_receive_skb(skb);
2398 #else
2399 netif_rx(skb);
2400 #endif
2401 dev->last_rx = jiffies;
2402 dev->stats.rx_packets++;
2403 dev->stats.rx_bytes += len;
2404 next_pkt:
2405 if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
2406 np->get_rx.orig = np->first_rx.orig;
2407 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2408 np->get_rx_ctx = np->first_rx_ctx;
2409
2410 rx_work++;
2411 }
2412
2413 return rx_work;
2414 }
2415
2416 static int nv_rx_process_optimized(struct net_device *dev, int limit)
2417 {
2418 struct fe_priv *np = netdev_priv(dev);
2419 u32 flags;
2420 u32 vlanflags = 0;
2421 int rx_work = 0;
2422 struct sk_buff *skb;
2423 int len;
2424
2425 while((np->get_rx.ex != np->put_rx.ex) &&
2426 !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
2427 (rx_work < limit)) {
2428
2429 dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: flags 0x%x.\n",
2430 dev->name, flags);
2431
2432 /*
2433 * the packet is for us - immediately tear down the pci mapping.
2434 * TODO: check if a prefetch of the first cacheline improves
2435 * the performance.
2436 */
2437 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2438 np->get_rx_ctx->dma_len,
2439 PCI_DMA_FROMDEVICE);
2440 skb = np->get_rx_ctx->skb;
2441 np->get_rx_ctx->skb = NULL;
2442
2443 {
2444 int j;
2445 dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2446 for (j=0; j<64; j++) {
2447 if ((j%16) == 0)
2448 dprintk("\n%03x:", j);
2449 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2450 }
2451 dprintk("\n");
2452 }
2453 /* look at what we actually got: */
2454 if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2455 len = flags & LEN_MASK_V2;
2456 if (unlikely(flags & NV_RX2_ERROR)) {
2457 if (flags & NV_RX2_ERROR4) {
2458 len = nv_getlen(dev, skb->data, len);
2459 if (len < 0) {
2460 dev_kfree_skb(skb);
2461 goto next_pkt;
2462 }
2463 }
2464 /* framing errors are soft errors */
2465 else if (flags & NV_RX2_FRAMINGERR) {
2466 if (flags & NV_RX2_SUBSTRACT1) {
2467 len--;
2468 }
2469 }
2470 /* the rest are hard errors */
2471 else {
2472 dev_kfree_skb(skb);
2473 goto next_pkt;
2474 }
2475 }
2476
2477 if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK2)/*ip and tcp */ {
2478 skb->ip_summed = CHECKSUM_UNNECESSARY;
2479 } else {
2480 if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK1 ||
2481 (flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK3) {
2482 skb->ip_summed = CHECKSUM_UNNECESSARY;
2483 }
2484 }
2485
2486 /* got a valid packet - forward it to the network core */
2487 skb_put(skb, len);
2488 skb->protocol = eth_type_trans(skb, dev);
2489 prefetch(skb->data);
2490
2491 dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: %d bytes, proto %d accepted.\n",
2492 dev->name, len, skb->protocol);
2493
2494 if (likely(!np->vlangrp)) {
2495 #ifdef CONFIG_FORCEDETH_NAPI
2496 netif_receive_skb(skb);
2497 #else
2498 netif_rx(skb);
2499 #endif
2500 } else {
2501 vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
2502 if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
2503 #ifdef CONFIG_FORCEDETH_NAPI
2504 vlan_hwaccel_receive_skb(skb, np->vlangrp,
2505 vlanflags & NV_RX3_VLAN_TAG_MASK);
2506 #else
2507 vlan_hwaccel_rx(skb, np->vlangrp,
2508 vlanflags & NV_RX3_VLAN_TAG_MASK);
2509 #endif
2510 } else {
2511 #ifdef CONFIG_FORCEDETH_NAPI
2512 netif_receive_skb(skb);
2513 #else
2514 netif_rx(skb);
2515 #endif
2516 }
2517 }
2518
2519 dev->last_rx = jiffies;
2520 dev->stats.rx_packets++;
2521 dev->stats.rx_bytes += len;
2522 } else {
2523 dev_kfree_skb(skb);
2524 }
2525 next_pkt:
2526 if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
2527 np->get_rx.ex = np->first_rx.ex;
2528 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2529 np->get_rx_ctx = np->first_rx_ctx;
2530
2531 rx_work++;
2532 }
2533
2534 return rx_work;
2535 }
2536
2537 static void set_bufsize(struct net_device *dev)
2538 {
2539 struct fe_priv *np = netdev_priv(dev);
2540
2541 if (dev->mtu <= ETH_DATA_LEN)
2542 np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS;
2543 else
2544 np->rx_buf_sz = dev->mtu + NV_RX_HEADERS;
2545 }
2546
2547 /*
2548 * nv_change_mtu: dev->change_mtu function
2549 * Called with dev_base_lock held for read.
2550 */
2551 static int nv_change_mtu(struct net_device *dev, int new_mtu)
2552 {
2553 struct fe_priv *np = netdev_priv(dev);
2554 int old_mtu;
2555
2556 if (new_mtu < 64 || new_mtu > np->pkt_limit)
2557 return -EINVAL;
2558
2559 old_mtu = dev->mtu;
2560 dev->mtu = new_mtu;
2561
2562 /* return early if the buffer sizes will not change */
2563 if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
2564 return 0;
2565 if (old_mtu == new_mtu)
2566 return 0;
2567
2568 /* synchronized against open : rtnl_lock() held by caller */
2569 if (netif_running(dev)) {
2570 u8 __iomem *base = get_hwbase(dev);
2571 /*
2572 * It seems that the nic preloads valid ring entries into an
2573 * internal buffer. The procedure for flushing everything is
2574 * guessed, there is probably a simpler approach.
2575 * Changing the MTU is a rare event, it shouldn't matter.
2576 */
2577 nv_disable_irq(dev);
2578 netif_tx_lock_bh(dev);
2579 spin_lock(&np->lock);
2580 /* stop engines */
2581 nv_stop_rx(dev);
2582 nv_stop_tx(dev);
2583 nv_txrx_reset(dev);
2584 /* drain rx queue */
2585 nv_drain_rx(dev);
2586 nv_drain_tx(dev);
2587 /* reinit driver view of the rx queue */
2588 set_bufsize(dev);
2589 if (nv_init_ring(dev)) {
2590 if (!np->in_shutdown)
2591 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
2592 }
2593 /* reinit nic view of the rx queue */
2594 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
2595 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
2596 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
2597 base + NvRegRingSizes);
2598 pci_push(base);
2599 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2600 pci_push(base);
2601
2602 /* restart rx engine */
2603 nv_start_rx(dev);
2604 nv_start_tx(dev);
2605 spin_unlock(&np->lock);
2606 netif_tx_unlock_bh(dev);
2607 nv_enable_irq(dev);
2608 }
2609 return 0;
2610 }
2611
2612 static void nv_copy_mac_to_hw(struct net_device *dev)
2613 {
2614 u8 __iomem *base = get_hwbase(dev);
2615 u32 mac[2];
2616
2617 mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
2618 (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
2619 mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
2620
2621 writel(mac[0], base + NvRegMacAddrA);
2622 writel(mac[1], base + NvRegMacAddrB);
2623 }
2624
2625 /*
2626 * nv_set_mac_address: dev->set_mac_address function
2627 * Called with rtnl_lock() held.
2628 */
2629 static int nv_set_mac_address(struct net_device *dev, void *addr)
2630 {
2631 struct fe_priv *np = netdev_priv(dev);
2632 struct sockaddr *macaddr = (struct sockaddr*)addr;
2633
2634 if (!is_valid_ether_addr(macaddr->sa_data))
2635 return -EADDRNOTAVAIL;
2636
2637 /* synchronized against open : rtnl_lock() held by caller */
2638 memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
2639
2640 if (netif_running(dev)) {
2641 netif_tx_lock_bh(dev);
2642 spin_lock_irq(&np->lock);
2643
2644 /* stop rx engine */
2645 nv_stop_rx(dev);
2646
2647 /* set mac address */
2648 nv_copy_mac_to_hw(dev);
2649
2650 /* restart rx engine */
2651 nv_start_rx(dev);
2652 spin_unlock_irq(&np->lock);
2653 netif_tx_unlock_bh(dev);
2654 } else {
2655 nv_copy_mac_to_hw(dev);
2656 }
2657 return 0;
2658 }
2659
2660 /*
2661 * nv_set_multicast: dev->set_multicast function
2662 * Called with netif_tx_lock held.
2663 */
2664 static void nv_set_multicast(struct net_device *dev)
2665 {
2666 struct fe_priv *np = netdev_priv(dev);
2667 u8 __iomem *base = get_hwbase(dev);
2668 u32 addr[2];
2669 u32 mask[2];
2670 u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX;
2671
2672 memset(addr, 0, sizeof(addr));
2673 memset(mask, 0, sizeof(mask));
2674
2675 if (dev->flags & IFF_PROMISC) {
2676 pff |= NVREG_PFF_PROMISC;
2677 } else {
2678 pff |= NVREG_PFF_MYADDR;
2679
2680 if (dev->flags & IFF_ALLMULTI || dev->mc_list) {
2681 u32 alwaysOff[2];
2682 u32 alwaysOn[2];
2683
2684 alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff;
2685 if (dev->flags & IFF_ALLMULTI) {
2686 alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
2687 } else {
2688 struct dev_mc_list *walk;
2689
2690 walk = dev->mc_list;
2691 while (walk != NULL) {
2692 u32 a, b;
2693 a = le32_to_cpu(*(__le32 *) walk->dmi_addr);
2694 b = le16_to_cpu(*(__le16 *) (&walk->dmi_addr[4]));
2695 alwaysOn[0] &= a;
2696 alwaysOff[0] &= ~a;
2697 alwaysOn[1] &= b;
2698 alwaysOff[1] &= ~b;
2699 walk = walk->next;
2700 }
2701 }
2702 addr[0] = alwaysOn[0];
2703 addr[1] = alwaysOn[1];
2704 mask[0] = alwaysOn[0] | alwaysOff[0];
2705 mask[1] = alwaysOn[1] | alwaysOff[1];
2706 }
2707 }
2708 addr[0] |= NVREG_MCASTADDRA_FORCE;
2709 pff |= NVREG_PFF_ALWAYS;
2710 spin_lock_irq(&np->lock);
2711 nv_stop_rx(dev);
2712 writel(addr[0], base + NvRegMulticastAddrA);
2713 writel(addr[1], base + NvRegMulticastAddrB);
2714 writel(mask[0], base + NvRegMulticastMaskA);
2715 writel(mask[1], base + NvRegMulticastMaskB);
2716 writel(pff, base + NvRegPacketFilterFlags);
2717 dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n",
2718 dev->name);
2719 nv_start_rx(dev);
2720 spin_unlock_irq(&np->lock);
2721 }
2722
2723 static void nv_update_pause(struct net_device *dev, u32 pause_flags)
2724 {
2725 struct fe_priv *np = netdev_priv(dev);
2726 u8 __iomem *base = get_hwbase(dev);
2727
2728 np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
2729
2730 if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
2731 u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
2732 if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) {
2733 writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
2734 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2735 } else {
2736 writel(pff, base + NvRegPacketFilterFlags);
2737 }
2738 }
2739 if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
2740 u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
2741 if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
2742 writel(NVREG_TX_PAUSEFRAME_ENABLE, base + NvRegTxPauseFrame);
2743 writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
2744 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2745 } else {
2746 writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
2747 writel(regmisc, base + NvRegMisc1);
2748 }
2749 }
2750 }
2751
2752 /**
2753 * nv_update_linkspeed: Setup the MAC according to the link partner
2754 * @dev: Network device to be configured
2755 *
2756 * The function queries the PHY and checks if there is a link partner.
2757 * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is
2758 * set to 10 MBit HD.
2759 *
2760 * The function returns 0 if there is no link partner and 1 if there is
2761 * a good link partner.
2762 */
2763 static int nv_update_linkspeed(struct net_device *dev)
2764 {
2765 struct fe_priv *np = netdev_priv(dev);
2766 u8 __iomem *base = get_hwbase(dev);
2767 int adv = 0;
2768 int lpa = 0;
2769 int adv_lpa, adv_pause, lpa_pause;
2770 int newls = np->linkspeed;
2771 int newdup = np->duplex;
2772 int mii_status;
2773 int retval = 0;
2774 u32 control_1000, status_1000, phyreg, pause_flags, txreg;
2775
2776 /* BMSR_LSTATUS is latched, read it twice:
2777 * we want the current value.
2778 */
2779 mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
2780 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
2781
2782 if (!(mii_status & BMSR_LSTATUS)) {
2783 dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n",
2784 dev->name);
2785 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2786 newdup = 0;
2787 retval = 0;
2788 goto set_speed;
2789 }
2790
2791 if (np->autoneg == 0) {
2792 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n",
2793 dev->name, np->fixed_mode);
2794 if (np->fixed_mode & LPA_100FULL) {
2795 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2796 newdup = 1;
2797 } else if (np->fixed_mode & LPA_100HALF) {
2798 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2799 newdup = 0;
2800 } else if (np->fixed_mode & LPA_10FULL) {
2801 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2802 newdup = 1;
2803 } else {
2804 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2805 newdup = 0;
2806 }
2807 retval = 1;
2808 goto set_speed;
2809 }
2810 /* check auto negotiation is complete */
2811 if (!(mii_status & BMSR_ANEGCOMPLETE)) {
2812 /* still in autonegotiation - configure nic for 10 MBit HD and wait. */
2813 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2814 newdup = 0;
2815 retval = 0;
2816 dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name);
2817 goto set_speed;
2818 }
2819
2820 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
2821 lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
2822 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
2823 dev->name, adv, lpa);
2824
2825 retval = 1;
2826 if (np->gigabit == PHY_GIGABIT) {
2827 control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
2828 status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ);
2829
2830 if ((control_1000 & ADVERTISE_1000FULL) &&
2831 (status_1000 & LPA_1000FULL)) {
2832 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n",
2833 dev->name);
2834 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
2835 newdup = 1;
2836 goto set_speed;
2837 }
2838 }
2839
2840 /* FIXME: handle parallel detection properly */
2841 adv_lpa = lpa & adv;
2842 if (adv_lpa & LPA_100FULL) {
2843 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2844 newdup = 1;
2845 } else if (adv_lpa & LPA_100HALF) {
2846 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2847 newdup = 0;
2848 } else if (adv_lpa & LPA_10FULL) {
2849 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2850 newdup = 1;
2851 } else if (adv_lpa & LPA_10HALF) {
2852 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2853 newdup = 0;
2854 } else {
2855 dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, adv_lpa);
2856 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2857 newdup = 0;
2858 }
2859
2860 set_speed:
2861 if (np->duplex == newdup && np->linkspeed == newls)
2862 return retval;
2863
2864 dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n",
2865 dev->name, np->linkspeed, np->duplex, newls, newdup);
2866
2867 np->duplex = newdup;
2868 np->linkspeed = newls;
2869
2870 if (np->gigabit == PHY_GIGABIT) {
2871 phyreg = readl(base + NvRegRandomSeed);
2872 phyreg &= ~(0x3FF00);
2873 if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
2874 phyreg |= NVREG_RNDSEED_FORCE3;
2875 else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
2876 phyreg |= NVREG_RNDSEED_FORCE2;
2877 else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
2878 phyreg |= NVREG_RNDSEED_FORCE;
2879 writel(phyreg, base + NvRegRandomSeed);
2880 }
2881
2882 phyreg = readl(base + NvRegPhyInterface);
2883 phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
2884 if (np->duplex == 0)
2885 phyreg |= PHY_HALF;
2886 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
2887 phyreg |= PHY_100;
2888 else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
2889 phyreg |= PHY_1000;
2890 writel(phyreg, base + NvRegPhyInterface);
2891
2892 if (phyreg & PHY_RGMII) {
2893 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
2894 txreg = NVREG_TX_DEFERRAL_RGMII_1000;
2895 else
2896 txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
2897 } else {
2898 txreg = NVREG_TX_DEFERRAL_DEFAULT;
2899 }
2900 writel(txreg, base + NvRegTxDeferral);
2901
2902 if (np->desc_ver == DESC_VER_1) {
2903 txreg = NVREG_TX_WM_DESC1_DEFAULT;
2904 } else {
2905 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
2906 txreg = NVREG_TX_WM_DESC2_3_1000;
2907 else
2908 txreg = NVREG_TX_WM_DESC2_3_DEFAULT;
2909 }
2910 writel(txreg, base + NvRegTxWatermark);
2911
2912 writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
2913 base + NvRegMisc1);
2914 pci_push(base);
2915 writel(np->linkspeed, base + NvRegLinkSpeed);
2916 pci_push(base);
2917
2918 pause_flags = 0;
2919 /* setup pause frame */
2920 if (np->duplex != 0) {
2921 if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
2922 adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM);
2923 lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM);
2924
2925 switch (adv_pause) {
2926 case ADVERTISE_PAUSE_CAP:
2927 if (lpa_pause & LPA_PAUSE_CAP) {
2928 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2929 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
2930 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2931 }
2932 break;
2933 case ADVERTISE_PAUSE_ASYM:
2934 if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM))
2935 {
2936 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2937 }
2938 break;
2939 case ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM:
2940 if (lpa_pause & LPA_PAUSE_CAP)
2941 {
2942 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2943 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
2944 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2945 }
2946 if (lpa_pause == LPA_PAUSE_ASYM)
2947 {
2948 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2949 }
2950 break;
2951 }
2952 } else {
2953 pause_flags = np->pause_flags;
2954 }
2955 }
2956 nv_update_pause(dev, pause_flags);
2957
2958 return retval;
2959 }
2960
2961 static void nv_linkchange(struct net_device *dev)
2962 {
2963 if (nv_update_linkspeed(dev)) {
2964 if (!netif_carrier_ok(dev)) {
2965 netif_carrier_on(dev);
2966 printk(KERN_INFO "%s: link up.\n", dev->name);
2967 nv_start_rx(dev);
2968 }
2969 } else {
2970 if (netif_carrier_ok(dev)) {
2971 netif_carrier_off(dev);
2972 printk(KERN_INFO "%s: link down.\n", dev->name);
2973 nv_stop_rx(dev);
2974 }
2975 }
2976 }
2977
2978 static void nv_link_irq(struct net_device *dev)
2979 {
2980 u8 __iomem *base = get_hwbase(dev);
2981 u32 miistat;
2982
2983 miistat = readl(base + NvRegMIIStatus);
2984 writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
2985 dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat);
2986
2987 if (miistat & (NVREG_MIISTAT_LINKCHANGE))
2988 nv_linkchange(dev);
2989 dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name);
2990 }
2991
2992 static irqreturn_t nv_nic_irq(int foo, void *data)
2993 {
2994 struct net_device *dev = (struct net_device *) data;
2995 struct fe_priv *np = netdev_priv(dev);
2996 u8 __iomem *base = get_hwbase(dev);
2997 u32 events;
2998 int i;
2999
3000 dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
3001
3002 for (i=0; ; i++) {
3003 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3004 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3005 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3006 } else {
3007 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3008 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3009 }
3010 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3011 if (!(events & np->irqmask))
3012 break;
3013
3014 spin_lock(&np->lock);
3015 nv_tx_done(dev);
3016 spin_unlock(&np->lock);
3017
3018 #ifdef CONFIG_FORCEDETH_NAPI
3019 if (events & NVREG_IRQ_RX_ALL) {
3020 netif_rx_schedule(dev, &np->napi);
3021
3022 /* Disable furthur receive irq's */
3023 spin_lock(&np->lock);
3024 np->irqmask &= ~NVREG_IRQ_RX_ALL;
3025
3026 if (np->msi_flags & NV_MSI_X_ENABLED)
3027 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3028 else
3029 writel(np->irqmask, base + NvRegIrqMask);
3030 spin_unlock(&np->lock);
3031 }
3032 #else
3033 if (nv_rx_process(dev, RX_WORK_PER_LOOP)) {
3034 if (unlikely(nv_alloc_rx(dev))) {
3035 spin_lock(&np->lock);
3036 if (!np->in_shutdown)
3037 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3038 spin_unlock(&np->lock);
3039 }
3040 }
3041 #endif
3042 if (unlikely(events & NVREG_IRQ_LINK)) {
3043 spin_lock(&np->lock);
3044 nv_link_irq(dev);
3045 spin_unlock(&np->lock);
3046 }
3047 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3048 spin_lock(&np->lock);
3049 nv_linkchange(dev);
3050 spin_unlock(&np->lock);
3051 np->link_timeout = jiffies + LINK_TIMEOUT;
3052 }
3053 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3054 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3055 dev->name, events);
3056 }
3057 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3058 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3059 dev->name, events);
3060 }
3061 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3062 spin_lock(&np->lock);
3063 /* disable interrupts on the nic */
3064 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3065 writel(0, base + NvRegIrqMask);
3066 else
3067 writel(np->irqmask, base + NvRegIrqMask);
3068 pci_push(base);
3069
3070 if (!np->in_shutdown) {
3071 np->nic_poll_irq = np->irqmask;
3072 np->recover_error = 1;
3073 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3074 }
3075 spin_unlock(&np->lock);
3076 break;
3077 }
3078 if (unlikely(i > max_interrupt_work)) {
3079 spin_lock(&np->lock);
3080 /* disable interrupts on the nic */
3081 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3082 writel(0, base + NvRegIrqMask);
3083 else
3084 writel(np->irqmask, base + NvRegIrqMask);
3085 pci_push(base);
3086
3087 if (!np->in_shutdown) {
3088 np->nic_poll_irq = np->irqmask;
3089 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3090 }
3091 spin_unlock(&np->lock);
3092 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3093 break;
3094 }
3095
3096 }
3097 dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
3098
3099 return IRQ_RETVAL(i);
3100 }
3101
3102 /**
3103 * All _optimized functions are used to help increase performance
3104 * (reduce CPU and increase throughput). They use descripter version 3,
3105 * compiler directives, and reduce memory accesses.
3106 */
3107 static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
3108 {
3109 struct net_device *dev = (struct net_device *) data;
3110 struct fe_priv *np = netdev_priv(dev);
3111 u8 __iomem *base = get_hwbase(dev);
3112 u32 events;
3113 int i;
3114
3115 dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name);
3116
3117 for (i=0; ; i++) {
3118 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3119 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3120 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3121 } else {
3122 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3123 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3124 }
3125 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3126 if (!(events & np->irqmask))
3127 break;
3128
3129 spin_lock(&np->lock);
3130 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3131 spin_unlock(&np->lock);
3132
3133 #ifdef CONFIG_FORCEDETH_NAPI
3134 if (events & NVREG_IRQ_RX_ALL) {
3135 netif_rx_schedule(dev, &np->napi);
3136
3137 /* Disable furthur receive irq's */
3138 spin_lock(&np->lock);
3139 np->irqmask &= ~NVREG_IRQ_RX_ALL;
3140
3141 if (np->msi_flags & NV_MSI_X_ENABLED)
3142 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3143 else
3144 writel(np->irqmask, base + NvRegIrqMask);
3145 spin_unlock(&np->lock);
3146 }
3147 #else
3148 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3149 if (unlikely(nv_alloc_rx_optimized(dev))) {
3150 spin_lock(&np->lock);
3151 if (!np->in_shutdown)
3152 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3153 spin_unlock(&np->lock);
3154 }
3155 }
3156 #endif
3157 if (unlikely(events & NVREG_IRQ_LINK)) {
3158 spin_lock(&np->lock);
3159 nv_link_irq(dev);
3160 spin_unlock(&np->lock);
3161 }
3162 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3163 spin_lock(&np->lock);
3164 nv_linkchange(dev);
3165 spin_unlock(&np->lock);
3166 np->link_timeout = jiffies + LINK_TIMEOUT;
3167 }
3168 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3169 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3170 dev->name, events);
3171 }
3172 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3173 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3174 dev->name, events);
3175 }
3176 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3177 spin_lock(&np->lock);
3178 /* disable interrupts on the nic */
3179 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3180 writel(0, base + NvRegIrqMask);
3181 else
3182 writel(np->irqmask, base + NvRegIrqMask);
3183 pci_push(base);
3184
3185 if (!np->in_shutdown) {
3186 np->nic_poll_irq = np->irqmask;
3187 np->recover_error = 1;
3188 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3189 }
3190 spin_unlock(&np->lock);
3191 break;
3192 }
3193
3194 if (unlikely(i > max_interrupt_work)) {
3195 spin_lock(&np->lock);
3196 /* disable interrupts on the nic */
3197 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3198 writel(0, base + NvRegIrqMask);
3199 else
3200 writel(np->irqmask, base + NvRegIrqMask);
3201 pci_push(base);
3202
3203 if (!np->in_shutdown) {
3204 np->nic_poll_irq = np->irqmask;
3205 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3206 }
3207 spin_unlock(&np->lock);
3208 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3209 break;
3210 }
3211
3212 }
3213 dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name);
3214
3215 return IRQ_RETVAL(i);
3216 }
3217
3218 static irqreturn_t nv_nic_irq_tx(int foo, void *data)
3219 {
3220 struct net_device *dev = (struct net_device *) data;
3221 struct fe_priv *np = netdev_priv(dev);
3222 u8 __iomem *base = get_hwbase(dev);
3223 u32 events;
3224 int i;
3225 unsigned long flags;
3226
3227 dprintk(KERN_DEBUG "%s: nv_nic_irq_tx\n", dev->name);
3228
3229 for (i=0; ; i++) {
3230 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL;
3231 writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus);
3232 dprintk(KERN_DEBUG "%s: tx irq: %08x\n", dev->name, events);
3233 if (!(events & np->irqmask))
3234 break;
3235
3236 spin_lock_irqsave(&np->lock, flags);
3237 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3238 spin_unlock_irqrestore(&np->lock, flags);
3239
3240 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3241 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3242 dev->name, events);
3243 }
3244 if (unlikely(i > max_interrupt_work)) {
3245 spin_lock_irqsave(&np->lock, flags);
3246 /* disable interrupts on the nic */
3247 writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask);
3248 pci_push(base);
3249
3250 if (!np->in_shutdown) {
3251 np->nic_poll_irq |= NVREG_IRQ_TX_ALL;
3252 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3253 }
3254 spin_unlock_irqrestore(&np->lock, flags);
3255 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_tx.\n", dev->name, i);
3256 break;
3257 }
3258
3259 }
3260 dprintk(KERN_DEBUG "%s: nv_nic_irq_tx completed\n", dev->name);
3261
3262 return IRQ_RETVAL(i);
3263 }
3264
3265 #ifdef CONFIG_FORCEDETH_NAPI
3266 static int nv_napi_poll(struct napi_struct *napi, int budget)
3267 {
3268 struct fe_priv *np = container_of(napi, struct fe_priv, napi);
3269 struct net_device *dev = np->dev;
3270 u8 __iomem *base = get_hwbase(dev);
3271 unsigned long flags;
3272 int pkts, retcode;
3273
3274 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
3275 pkts = nv_rx_process(dev, budget);
3276 retcode = nv_alloc_rx(dev);
3277 } else {
3278 pkts = nv_rx_process_optimized(dev, budget);
3279 retcode = nv_alloc_rx_optimized(dev);
3280 }
3281
3282 if (retcode) {
3283 spin_lock_irqsave(&np->lock, flags);
3284 if (!np->in_shutdown)
3285 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3286 spin_unlock_irqrestore(&np->lock, flags);
3287 }
3288
3289 if (pkts < budget) {
3290 /* re-enable receive interrupts */
3291 spin_lock_irqsave(&np->lock, flags);
3292
3293 __netif_rx_complete(dev, napi);
3294
3295 np->irqmask |= NVREG_IRQ_RX_ALL;
3296 if (np->msi_flags & NV_MSI_X_ENABLED)
3297 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3298 else
3299 writel(np->irqmask, base + NvRegIrqMask);
3300
3301 spin_unlock_irqrestore(&np->lock, flags);
3302 }
3303 return pkts;
3304 }
3305 #endif
3306
3307 #ifdef CONFIG_FORCEDETH_NAPI
3308 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3309 {
3310 struct net_device *dev = (struct net_device *) data;
3311 struct fe_priv *np = netdev_priv(dev);
3312 u8 __iomem *base = get_hwbase(dev);
3313 u32 events;
3314
3315 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3316 writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3317
3318 if (events) {
3319 netif_rx_schedule(dev, &np->napi);
3320 /* disable receive interrupts on the nic */
3321 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3322 pci_push(base);
3323 }
3324 return IRQ_HANDLED;
3325 }
3326 #else
3327 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3328 {
3329 struct net_device *dev = (struct net_device *) data;
3330 struct fe_priv *np = netdev_priv(dev);
3331 u8 __iomem *base = get_hwbase(dev);
3332 u32 events;
3333 int i;
3334 unsigned long flags;
3335
3336 dprintk(KERN_DEBUG "%s: nv_nic_irq_rx\n", dev->name);
3337
3338 for (i=0; ; i++) {
3339 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3340 writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3341 dprintk(KERN_DEBUG "%s: rx irq: %08x\n", dev->name, events);
3342 if (!(events & np->irqmask))
3343 break;
3344
3345 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3346 if (unlikely(nv_alloc_rx_optimized(dev))) {
3347 spin_lock_irqsave(&np->lock, flags);
3348 if (!np->in_shutdown)
3349 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3350 spin_unlock_irqrestore(&np->lock, flags);
3351 }
3352 }
3353
3354 if (unlikely(i > max_interrupt_work)) {
3355 spin_lock_irqsave(&np->lock, flags);
3356 /* disable interrupts on the nic */
3357 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3358 pci_push(base);
3359
3360 if (!np->in_shutdown) {
3361 np->nic_poll_irq |= NVREG_IRQ_RX_ALL;
3362 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3363 }
3364 spin_unlock_irqrestore(&np->lock, flags);
3365 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_rx.\n", dev->name, i);
3366 break;
3367 }
3368 }
3369 dprintk(KERN_DEBUG "%s: nv_nic_irq_rx completed\n", dev->name);
3370
3371 return IRQ_RETVAL(i);
3372 }
3373 #endif
3374
3375 static irqreturn_t nv_nic_irq_other(int foo, void *data)
3376 {
3377 struct net_device *dev = (struct net_device *) data;
3378 struct fe_priv *np = netdev_priv(dev);
3379 u8 __iomem *base = get_hwbase(dev);
3380 u32 events;
3381 int i;
3382 unsigned long flags;
3383
3384 dprintk(KERN_DEBUG "%s: nv_nic_irq_other\n", dev->name);
3385
3386 for (i=0; ; i++) {
3387 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER;
3388 writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus);
3389 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3390 if (!(events & np->irqmask))
3391 break;
3392
3393 /* check tx in case we reached max loop limit in tx isr */
3394 spin_lock_irqsave(&np->lock, flags);
3395 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3396 spin_unlock_irqrestore(&np->lock, flags);
3397
3398 if (events & NVREG_IRQ_LINK) {
3399 spin_lock_irqsave(&np->lock, flags);
3400 nv_link_irq(dev);
3401 spin_unlock_irqrestore(&np->lock, flags);
3402 }
3403 if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
3404 spin_lock_irqsave(&np->lock, flags);
3405 nv_linkchange(dev);
3406 spin_unlock_irqrestore(&np->lock, flags);
3407 np->link_timeout = jiffies + LINK_TIMEOUT;
3408 }
3409 if (events & NVREG_IRQ_RECOVER_ERROR) {
3410 spin_lock_irq(&np->lock);
3411 /* disable interrupts on the nic */
3412 writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3413 pci_push(base);
3414
3415 if (!np->in_shutdown) {
3416 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3417 np->recover_error = 1;
3418 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3419 }
3420 spin_unlock_irq(&np->lock);
3421 break;
3422 }
3423 if (events & (NVREG_IRQ_UNKNOWN)) {
3424 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3425 dev->name, events);
3426 }
3427 if (unlikely(i > max_interrupt_work)) {
3428 spin_lock_irqsave(&np->lock, flags);
3429 /* disable interrupts on the nic */
3430 writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3431 pci_push(base);
3432
3433 if (!np->in_shutdown) {
3434 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3435 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3436 }
3437 spin_unlock_irqrestore(&np->lock, flags);
3438 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_other.\n", dev->name, i);
3439 break;
3440 }
3441
3442 }
3443 dprintk(KERN_DEBUG "%s: nv_nic_irq_other completed\n", dev->name);
3444
3445 return IRQ_RETVAL(i);
3446 }
3447
3448 static irqreturn_t nv_nic_irq_test(int foo, void *data)
3449 {
3450 struct net_device *dev = (struct net_device *) data;
3451 struct fe_priv *np = netdev_priv(dev);
3452 u8 __iomem *base = get_hwbase(dev);
3453 u32 events;
3454
3455 dprintk(KERN_DEBUG "%s: nv_nic_irq_test\n", dev->name);
3456
3457 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3458 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3459 writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus);
3460 } else {
3461 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3462 writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus);
3463 }
3464 pci_push(base);
3465 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3466 if (!(events & NVREG_IRQ_TIMER))
3467 return IRQ_RETVAL(0);
3468
3469 spin_lock(&np->lock);
3470 np->intr_test = 1;
3471 spin_unlock(&np->lock);
3472
3473 dprintk(KERN_DEBUG "%s: nv_nic_irq_test completed\n", dev->name);
3474
3475 return IRQ_RETVAL(1);
3476 }
3477
3478 static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask)
3479 {
3480 u8 __iomem *base = get_hwbase(dev);
3481 int i;
3482 u32 msixmap = 0;
3483
3484 /* Each interrupt bit can be mapped to a MSIX vector (4 bits).
3485 * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents
3486 * the remaining 8 interrupts.
3487 */
3488 for (i = 0; i < 8; i++) {
3489 if ((irqmask >> i) & 0x1) {
3490 msixmap |= vector << (i << 2);
3491 }
3492 }
3493 writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0);
3494
3495 msixmap = 0;
3496 for (i = 0; i < 8; i++) {
3497 if ((irqmask >> (i + 8)) & 0x1) {
3498 msixmap |= vector << (i << 2);
3499 }
3500 }
3501 writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1);
3502 }
3503
3504 static int nv_request_irq(struct net_device *dev, int intr_test)
3505 {
3506 struct fe_priv *np = get_nvpriv(dev);
3507 u8 __iomem *base = get_hwbase(dev);
3508 int ret = 1;
3509 int i;
3510 irqreturn_t (*handler)(int foo, void *data);
3511
3512 if (intr_test) {
3513 handler = nv_nic_irq_test;
3514 } else {
3515 if (np->desc_ver == DESC_VER_3)
3516 handler = nv_nic_irq_optimized;
3517 else
3518 handler = nv_nic_irq;
3519 }
3520
3521 if (np->msi_flags & NV_MSI_X_CAPABLE) {
3522 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
3523 np->msi_x_entry[i].entry = i;
3524 }
3525 if ((ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK))) == 0) {
3526 np->msi_flags |= NV_MSI_X_ENABLED;
3527 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) {
3528 /* Request irq for rx handling */
3529 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, &nv_nic_irq_rx, IRQF_SHARED, dev->name, dev) != 0) {
3530 printk(KERN_INFO "forcedeth: request_irq failed for rx %d\n", ret);
3531 pci_disable_msix(np->pci_dev);
3532 np->msi_flags &= ~NV_MSI_X_ENABLED;
3533 goto out_err;
3534 }
3535 /* Request irq for tx handling */
3536 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, &nv_nic_irq_tx, IRQF_SHARED, dev->name, dev) != 0) {
3537 printk(KERN_INFO "forcedeth: request_irq failed for tx %d\n", ret);
3538 pci_disable_msix(np->pci_dev);
3539 np->msi_flags &= ~NV_MSI_X_ENABLED;
3540 goto out_free_rx;
3541 }
3542 /* Request irq for link and timer handling */
3543 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, &nv_nic_irq_other, IRQF_SHARED, dev->name, dev) != 0) {
3544 printk(KERN_INFO "forcedeth: request_irq failed for link %d\n", ret);
3545 pci_disable_msix(np->pci_dev);
3546 np->msi_flags &= ~NV_MSI_X_ENABLED;
3547 goto out_free_tx;
3548 }
3549 /* map interrupts to their respective vector */
3550 writel(0, base + NvRegMSIXMap0);
3551 writel(0, base + NvRegMSIXMap1);
3552 set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL);
3553 set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL);
3554 set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER);
3555 } else {
3556 /* Request irq for all interrupts */
3557 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, handler, IRQF_SHARED, dev->name, dev) != 0) {
3558 printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3559 pci_disable_msix(np->pci_dev);
3560 np->msi_flags &= ~NV_MSI_X_ENABLED;
3561 goto out_err;
3562 }
3563
3564 /* map interrupts to vector 0 */
3565 writel(0, base + NvRegMSIXMap0);
3566 writel(0, base + NvRegMSIXMap1);
3567 }
3568 }
3569 }
3570 if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) {
3571 if ((ret = pci_enable_msi(np->pci_dev)) == 0) {
3572 np->msi_flags |= NV_MSI_ENABLED;
3573 dev->irq = np->pci_dev->irq;
3574 if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) {
3575 printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3576 pci_disable_msi(np->pci_dev);
3577 np->msi_flags &= ~NV_MSI_ENABLED;
3578 dev->irq = np->pci_dev->irq;
3579 goto out_err;
3580 }
3581
3582 /* map interrupts to vector 0 */
3583 writel(0, base + NvRegMSIMap0);
3584 writel(0, base + NvRegMSIMap1);
3585 /* enable msi vector 0 */
3586 writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
3587 }
3588 }
3589 if (ret != 0) {
3590 if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0)
3591 goto out_err;
3592
3593 }
3594
3595 return 0;
3596 out_free_tx:
3597 free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev);
3598 out_free_rx:
3599 free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev);
3600 out_err:
3601 return 1;
3602 }
3603
3604 static void nv_free_irq(struct net_device *dev)
3605 {
3606 struct fe_priv *np = get_nvpriv(dev);
3607 int i;
3608
3609 if (np->msi_flags & NV_MSI_X_ENABLED) {
3610 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
3611 free_irq(np->msi_x_entry[i].vector, dev);
3612 }
3613 pci_disable_msix(np->pci_dev);
3614 np->msi_flags &= ~NV_MSI_X_ENABLED;
3615 } else {
3616 free_irq(np->pci_dev->irq, dev);
3617 if (np->msi_flags & NV_MSI_ENABLED) {
3618 pci_disable_msi(np->pci_dev);
3619 np->msi_flags &= ~NV_MSI_ENABLED;
3620 }
3621 }
3622 }
3623
3624 static void nv_do_nic_poll(unsigned long data)
3625 {
3626 struct net_device *dev = (struct net_device *) data;
3627 struct fe_priv *np = netdev_priv(dev);
3628 u8 __iomem *base = get_hwbase(dev);
3629 u32 mask = 0;
3630
3631 /*
3632 * First disable irq(s) and then
3633 * reenable interrupts on the nic, we have to do this before calling
3634 * nv_nic_irq because that may decide to do otherwise
3635 */
3636
3637 if (!using_multi_irqs(dev)) {
3638 if (np->msi_flags & NV_MSI_X_ENABLED)
3639 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
3640 else
3641 disable_irq_lockdep(np->pci_dev->irq);
3642 mask = np->irqmask;
3643 } else {
3644 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
3645 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
3646 mask |= NVREG_IRQ_RX_ALL;
3647 }
3648 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
3649 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
3650 mask |= NVREG_IRQ_TX_ALL;
3651 }
3652 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
3653 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
3654 mask |= NVREG_IRQ_OTHER;
3655 }
3656 }
3657 np->nic_poll_irq = 0;
3658
3659 /* disable_irq() contains synchronize_irq, thus no irq handler can run now */
3660
3661 if (np->recover_error) {
3662 np->recover_error = 0;
3663 printk(KERN_INFO "forcedeth: MAC in recoverable error state\n");
3664 if (netif_running(dev)) {
3665 netif_tx_lock_bh(dev);
3666 spin_lock(&np->lock);
3667 /* stop engines */
3668 nv_stop_rx(dev);
3669 nv_stop_tx(dev);
3670 nv_txrx_reset(dev);
3671 /* drain rx queue */
3672 nv_drain_rx(dev);
3673 nv_drain_tx(dev);
3674 /* reinit driver view of the rx queue */
3675 set_bufsize(dev);
3676 if (nv_init_ring(dev)) {
3677 if (!np->in_shutdown)
3678 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3679 }
3680 /* reinit nic view of the rx queue */
3681 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
3682 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
3683 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
3684 base + NvRegRingSizes);
3685 pci_push(base);
3686 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
3687 pci_push(base);
3688
3689 /* restart rx engine */
3690 nv_start_rx(dev);
3691 nv_start_tx(dev);
3692 spin_unlock(&np->lock);
3693 netif_tx_unlock_bh(dev);
3694 }
3695 }
3696
3697
3698 writel(mask, base + NvRegIrqMask);
3699 pci_push(base);
3700
3701 if (!using_multi_irqs(dev)) {
3702 if (np->desc_ver == DESC_VER_3)
3703 nv_nic_irq_optimized(0, dev);
3704 else
3705 nv_nic_irq(0, dev);
3706 if (np->msi_flags & NV_MSI_X_ENABLED)
3707 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
3708 else
3709 enable_irq_lockdep(np->pci_dev->irq);
3710 } else {
3711 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
3712 nv_nic_irq_rx(0, dev);
3713 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
3714 }
3715 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
3716 nv_nic_irq_tx(0, dev);
3717 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
3718 }
3719 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
3720 nv_nic_irq_other(0, dev);
3721 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
3722 }
3723 }
3724 }
3725
3726 #ifdef CONFIG_NET_POLL_CONTROLLER
3727 static void nv_poll_controller(struct net_device *dev)
3728 {
3729 nv_do_nic_poll((unsigned long) dev);
3730 }
3731 #endif
3732
3733 static void nv_do_stats_poll(unsigned long data)
3734 {
3735 struct net_device *dev = (struct net_device *) data;
3736 struct fe_priv *np = netdev_priv(dev);
3737
3738 nv_get_hw_stats(dev);
3739
3740 if (!np->in_shutdown)
3741 mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
3742 }
3743
3744 static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3745 {
3746 struct fe_priv *np = netdev_priv(dev);
3747 strcpy(info->driver, DRV_NAME);
3748 strcpy(info->version, FORCEDETH_VERSION);
3749 strcpy(info->bus_info, pci_name(np->pci_dev));
3750 }
3751
3752 static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
3753 {
3754 struct fe_priv *np = netdev_priv(dev);
3755 wolinfo->supported = WAKE_MAGIC;
3756
3757 spin_lock_irq(&np->lock);
3758 if (np->wolenabled)
3759 wolinfo->wolopts = WAKE_MAGIC;
3760 spin_unlock_irq(&np->lock);
3761 }
3762
3763 static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
3764 {
3765 struct fe_priv *np = netdev_priv(dev);
3766 u8 __iomem *base = get_hwbase(dev);
3767 u32 flags = 0;
3768
3769 if (wolinfo->wolopts == 0) {
3770 np->wolenabled = 0;
3771 } else if (wolinfo->wolopts & WAKE_MAGIC) {
3772 np->wolenabled = 1;
3773 flags = NVREG_WAKEUPFLAGS_ENABLE;
3774 }
3775 if (netif_running(dev)) {
3776 spin_lock_irq(&np->lock);
3777 writel(flags, base + NvRegWakeUpFlags);
3778 spin_unlock_irq(&np->lock);
3779 }
3780 return 0;
3781 }
3782
3783 static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3784 {
3785 struct fe_priv *np = netdev_priv(dev);
3786 int adv;
3787
3788 spin_lock_irq(&np->lock);
3789 ecmd->port = PORT_MII;
3790 if (!netif_running(dev)) {
3791 /* We do not track link speed / duplex setting if the
3792 * interface is disabled. Force a link check */
3793 if (nv_update_linkspeed(dev)) {
3794 if (!netif_carrier_ok(dev))
3795 netif_carrier_on(dev);
3796 } else {
3797 if (netif_carrier_ok(dev))
3798 netif_carrier_off(dev);
3799 }
3800 }
3801
3802 if (netif_carrier_ok(dev)) {
3803 switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) {
3804 case NVREG_LINKSPEED_10:
3805 ecmd->speed = SPEED_10;
3806 break;
3807 case NVREG_LINKSPEED_100:
3808 ecmd->speed = SPEED_100;
3809 break;
3810 case NVREG_LINKSPEED_1000:
3811 ecmd->speed = SPEED_1000;
3812 break;
3813 }
3814 ecmd->duplex = DUPLEX_HALF;
3815 if (np->duplex)
3816 ecmd->duplex = DUPLEX_FULL;
3817 } else {
3818 ecmd->speed = -1;
3819 ecmd->duplex = -1;
3820 }
3821
3822 ecmd->autoneg = np->autoneg;
3823
3824 ecmd->advertising = ADVERTISED_MII;
3825 if (np->autoneg) {
3826 ecmd->advertising |= ADVERTISED_Autoneg;
3827 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3828 if (adv & ADVERTISE_10HALF)
3829 ecmd->advertising |= ADVERTISED_10baseT_Half;
3830 if (adv & ADVERTISE_10FULL)
3831 ecmd->advertising |= ADVERTISED_10baseT_Full;
3832 if (adv & ADVERTISE_100HALF)
3833 ecmd->advertising |= ADVERTISED_100baseT_Half;
3834 if (adv & ADVERTISE_100FULL)
3835 ecmd->advertising |= ADVERTISED_100baseT_Full;
3836 if (np->gigabit == PHY_GIGABIT) {
3837 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3838 if (adv & ADVERTISE_1000FULL)
3839 ecmd->advertising |= ADVERTISED_1000baseT_Full;
3840 }
3841 }
3842 ecmd->supported = (SUPPORTED_Autoneg |
3843 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
3844 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
3845 SUPPORTED_MII);
3846 if (np->gigabit == PHY_GIGABIT)
3847 ecmd->supported |= SUPPORTED_1000baseT_Full;
3848
3849 ecmd->phy_address = np->phyaddr;
3850 ecmd->transceiver = XCVR_EXTERNAL;
3851
3852 /* ignore maxtxpkt, maxrxpkt for now */
3853 spin_unlock_irq(&np->lock);
3854 return 0;
3855 }
3856
3857 static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3858 {
3859 struct fe_priv *np = netdev_priv(dev);
3860
3861 if (ecmd->port != PORT_MII)
3862 return -EINVAL;
3863 if (ecmd->transceiver != XCVR_EXTERNAL)
3864 return -EINVAL;
3865 if (ecmd->phy_address != np->phyaddr) {
3866 /* TODO: support switching between multiple phys. Should be
3867 * trivial, but not enabled due to lack of test hardware. */
3868 return -EINVAL;
3869 }
3870 if (ecmd->autoneg == AUTONEG_ENABLE) {
3871 u32 mask;
3872
3873 mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
3874 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
3875 if (np->gigabit == PHY_GIGABIT)
3876 mask |= ADVERTISED_1000baseT_Full;
3877
3878 if ((ecmd->advertising & mask) == 0)
3879 return -EINVAL;
3880
3881 } else if (ecmd->autoneg == AUTONEG_DISABLE) {
3882 /* Note: autonegotiation disable, speed 1000 intentionally
3883 * forbidden - noone should need that. */
3884
3885 if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
3886 return -EINVAL;
3887 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
3888 return -EINVAL;
3889 } else {
3890 return -EINVAL;
3891 }
3892
3893 netif_carrier_off(dev);
3894 if (netif_running(dev)) {
3895 nv_disable_irq(dev);
3896 netif_tx_lock_bh(dev);
3897 spin_lock(&np->lock);
3898 /* stop engines */
3899 nv_stop_rx(dev);
3900 nv_stop_tx(dev);
3901 spin_unlock(&np->lock);
3902 netif_tx_unlock_bh(dev);
3903 }
3904
3905 if (ecmd->autoneg == AUTONEG_ENABLE) {
3906 int adv, bmcr;
3907
3908 np->autoneg = 1;
3909
3910 /* advertise only what has been requested */
3911 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3912 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3913 if (ecmd->advertising & ADVERTISED_10baseT_Half)
3914 adv |= ADVERTISE_10HALF;
3915 if (ecmd->advertising & ADVERTISED_10baseT_Full)
3916 adv |= ADVERTISE_10FULL;
3917 if (ecmd->advertising & ADVERTISED_100baseT_Half)
3918 adv |= ADVERTISE_100HALF;
3919 if (ecmd->advertising & ADVERTISED_100baseT_Full)
3920 adv |= ADVERTISE_100FULL;
3921 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
3922 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
3923 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
3924 adv |= ADVERTISE_PAUSE_ASYM;
3925 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
3926
3927 if (np->gigabit == PHY_GIGABIT) {
3928 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3929 adv &= ~ADVERTISE_1000FULL;
3930 if (ecmd->advertising & ADVERTISED_1000baseT_Full)
3931 adv |= ADVERTISE_1000FULL;
3932 mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
3933 }
3934
3935 if (netif_running(dev))
3936 printk(KERN_INFO "%s: link down.\n", dev->name);
3937 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
3938 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
3939 bmcr |= BMCR_ANENABLE;
3940 /* reset the phy in order for settings to stick,
3941 * and cause autoneg to start */
3942 if (phy_reset(dev, bmcr)) {
3943 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
3944 return -EINVAL;
3945 }
3946 } else {
3947 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
3948 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
3949 }
3950 } else {
3951 int adv, bmcr;
3952
3953 np->autoneg = 0;
3954
3955 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3956 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3957 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF)
3958 adv |= ADVERTISE_10HALF;
3959 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL)
3960 adv |= ADVERTISE_10FULL;
3961 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF)
3962 adv |= ADVERTISE_100HALF;
3963 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
3964 adv |= ADVERTISE_100FULL;
3965 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
3966 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */
3967 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
3968 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
3969 }
3970 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) {
3971 adv |= ADVERTISE_PAUSE_ASYM;
3972 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
3973 }
3974 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
3975 np->fixed_mode = adv;
3976
3977 if (np->gigabit == PHY_GIGABIT) {
3978 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3979 adv &= ~ADVERTISE_1000FULL;
3980 mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
3981 }
3982
3983 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
3984 bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX);
3985 if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL))
3986 bmcr |= BMCR_FULLDPLX;
3987 if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL))
3988 bmcr |= BMCR_SPEED100;
3989 if (np->phy_oui == PHY_OUI_MARVELL) {
3990 /* reset the phy in order for forced mode settings to stick */
3991 if (phy_reset(dev, bmcr)) {
3992 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
3993 return -EINVAL;
3994 }
3995 } else {
3996 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
3997 if (netif_running(dev)) {
3998 /* Wait a bit and then reconfigure the nic. */
3999 udelay(10);
4000 nv_linkchange(dev);
4001 }
4002 }
4003 }
4004
4005 if (netif_running(dev)) {
4006 nv_start_rx(dev);
4007 nv_start_tx(dev);
4008 nv_enable_irq(dev);
4009 }
4010
4011 return 0;
4012 }
4013
4014 #define FORCEDETH_REGS_VER 1
4015
4016 static int nv_get_regs_len(struct net_device *dev)
4017 {
4018 struct fe_priv *np = netdev_priv(dev);
4019 return np->register_size;
4020 }
4021
4022 static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
4023 {
4024 struct fe_priv *np = netdev_priv(dev);
4025 u8 __iomem *base = get_hwbase(dev);
4026 u32 *rbuf = buf;
4027 int i;
4028
4029 regs->version = FORCEDETH_REGS_VER;
4030 spin_lock_irq(&np->lock);
4031 for (i = 0;i <= np->register_size/sizeof(u32); i++)
4032 rbuf[i] = readl(base + i*sizeof(u32));
4033 spin_unlock_irq(&np->lock);
4034 }
4035
4036 static int nv_nway_reset(struct net_device *dev)
4037 {
4038 struct fe_priv *np = netdev_priv(dev);
4039 int ret;
4040
4041 if (np->autoneg) {
4042 int bmcr;
4043
4044 netif_carrier_off(dev);
4045 if (netif_running(dev)) {
4046 nv_disable_irq(dev);
4047 netif_tx_lock_bh(dev);
4048 spin_lock(&np->lock);
4049 /* stop engines */
4050 nv_stop_rx(dev);
4051 nv_stop_tx(dev);
4052 spin_unlock(&np->lock);
4053 netif_tx_unlock_bh(dev);
4054 printk(KERN_INFO "%s: link down.\n", dev->name);
4055 }
4056
4057 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4058 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
4059 bmcr |= BMCR_ANENABLE;
4060 /* reset the phy in order for settings to stick*/
4061 if (phy_reset(dev, bmcr)) {
4062 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4063 return -EINVAL;
4064 }
4065 } else {
4066 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4067 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4068 }
4069
4070 if (netif_running(dev)) {
4071 nv_start_rx(dev);
4072 nv_start_tx(dev);
4073 nv_enable_irq(dev);
4074 }
4075 ret = 0;
4076 } else {
4077 ret = -EINVAL;
4078 }
4079
4080 return ret;
4081 }
4082
4083 static int nv_set_tso(struct net_device *dev, u32 value)
4084 {
4085 struct fe_priv *np = netdev_priv(dev);
4086
4087 if ((np->driver_data & DEV_HAS_CHECKSUM))
4088 return ethtool_op_set_tso(dev, value);
4089 else
4090 return -EOPNOTSUPP;
4091 }
4092
4093 static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4094 {
4095 struct fe_priv *np = netdev_priv(dev);
4096
4097 ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4098 ring->rx_mini_max_pending = 0;
4099 ring->rx_jumbo_max_pending = 0;
4100 ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4101
4102 ring->rx_pending = np->rx_ring_size;
4103 ring->rx_mini_pending = 0;
4104 ring->rx_jumbo_pending = 0;
4105 ring->tx_pending = np->tx_ring_size;
4106 }
4107
4108 static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4109 {
4110 struct fe_priv *np = netdev_priv(dev);
4111 u8 __iomem *base = get_hwbase(dev);
4112 u8 *rxtx_ring, *rx_skbuff, *tx_skbuff;
4113 dma_addr_t ring_addr;
4114
4115 if (ring->rx_pending < RX_RING_MIN ||
4116 ring->tx_pending < TX_RING_MIN ||
4117 ring->rx_mini_pending != 0 ||
4118 ring->rx_jumbo_pending != 0 ||
4119 (np->desc_ver == DESC_VER_1 &&
4120 (ring->rx_pending > RING_MAX_DESC_VER_1 ||
4121 ring->tx_pending > RING_MAX_DESC_VER_1)) ||
4122 (np->desc_ver != DESC_VER_1 &&
4123 (ring->rx_pending > RING_MAX_DESC_VER_2_3 ||
4124 ring->tx_pending > RING_MAX_DESC_VER_2_3))) {
4125 return -EINVAL;
4126 }
4127
4128 /* allocate new rings */
4129 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4130 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4131 sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4132 &ring_addr);
4133 } else {
4134 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4135 sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4136 &ring_addr);
4137 }
4138 rx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->rx_pending, GFP_KERNEL);
4139 tx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->tx_pending, GFP_KERNEL);
4140 if (!rxtx_ring || !rx_skbuff || !tx_skbuff) {
4141 /* fall back to old rings */
4142 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4143 if (rxtx_ring)
4144 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4145 rxtx_ring, ring_addr);
4146 } else {
4147 if (rxtx_ring)
4148 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4149 rxtx_ring, ring_addr);
4150 }
4151 if (rx_skbuff)
4152 kfree(rx_skbuff);
4153 if (tx_skbuff)
4154 kfree(tx_skbuff);
4155 goto exit;
4156 }
4157
4158 if (netif_running(dev)) {
4159 nv_disable_irq(dev);
4160 netif_tx_lock_bh(dev);
4161 spin_lock(&np->lock);
4162 /* stop engines */
4163 nv_stop_rx(dev);
4164 nv_stop_tx(dev);
4165 nv_txrx_reset(dev);
4166 /* drain queues */
4167 nv_drain_rx(dev);
4168 nv_drain_tx(dev);
4169 /* delete queues */
4170 free_rings(dev);
4171 }
4172
4173 /* set new values */
4174 np->rx_ring_size = ring->rx_pending;
4175 np->tx_ring_size = ring->tx_pending;
4176 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4177 np->rx_ring.orig = (struct ring_desc*)rxtx_ring;
4178 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
4179 } else {
4180 np->rx_ring.ex = (struct ring_desc_ex*)rxtx_ring;
4181 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
4182 }
4183 np->rx_skb = (struct nv_skb_map*)rx_skbuff;
4184 np->tx_skb = (struct nv_skb_map*)tx_skbuff;
4185 np->ring_addr = ring_addr;
4186
4187 memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size);
4188 memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size);
4189
4190 if (netif_running(dev)) {
4191 /* reinit driver view of the queues */
4192 set_bufsize(dev);
4193 if (nv_init_ring(dev)) {
4194 if (!np->in_shutdown)
4195 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4196 }
4197
4198 /* reinit nic view of the queues */
4199 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4200 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4201 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4202 base + NvRegRingSizes);
4203 pci_push(base);
4204 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4205 pci_push(base);
4206
4207 /* restart engines */
4208 nv_start_rx(dev);
4209 nv_start_tx(dev);
4210 spin_unlock(&np->lock);
4211 netif_tx_unlock_bh(dev);
4212 nv_enable_irq(dev);
4213 }
4214 return 0;
4215 exit:
4216 return -ENOMEM;
4217 }
4218
4219 static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4220 {
4221 struct fe_priv *np = netdev_priv(dev);
4222
4223 pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0;
4224 pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0;
4225 pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0;
4226 }
4227
4228 static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4229 {
4230 struct fe_priv *np = netdev_priv(dev);
4231 int adv, bmcr;
4232
4233 if ((!np->autoneg && np->duplex == 0) ||
4234 (np->autoneg && !pause->autoneg && np->duplex == 0)) {
4235 printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n",
4236 dev->name);
4237 return -EINVAL;
4238 }
4239 if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
4240 printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name);
4241 return -EINVAL;
4242 }
4243
4244 netif_carrier_off(dev);
4245 if (netif_running(dev)) {
4246 nv_disable_irq(dev);
4247 netif_tx_lock_bh(dev);
4248 spin_lock(&np->lock);
4249 /* stop engines */
4250 nv_stop_rx(dev);
4251 nv_stop_tx(dev);
4252 spin_unlock(&np->lock);
4253 netif_tx_unlock_bh(dev);
4254 }
4255
4256 np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ);
4257 if (pause->rx_pause)
4258 np->pause_flags |= NV_PAUSEFRAME_RX_REQ;
4259 if (pause->tx_pause)
4260 np->pause_flags |= NV_PAUSEFRAME_TX_REQ;
4261
4262 if (np->autoneg && pause->autoneg) {
4263 np->pause_flags |= NV_PAUSEFRAME_AUTONEG;
4264
4265 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4266 adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4267 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
4268 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4269 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
4270 adv |= ADVERTISE_PAUSE_ASYM;
4271 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4272
4273 if (netif_running(dev))
4274 printk(KERN_INFO "%s: link down.\n", dev->name);
4275 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4276 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4277 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4278 } else {
4279 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
4280 if (pause->rx_pause)
4281 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
4282 if (pause->tx_pause)
4283 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
4284
4285 if (!netif_running(dev))
4286 nv_update_linkspeed(dev);
4287 else
4288 nv_update_pause(dev, np->pause_flags);
4289 }
4290
4291 if (netif_running(dev)) {
4292 nv_start_rx(dev);
4293 nv_start_tx(dev);
4294 nv_enable_irq(dev);
4295 }
4296 return 0;
4297 }
4298
4299 static u32 nv_get_rx_csum(struct net_device *dev)
4300 {
4301 struct fe_priv *np = netdev_priv(dev);
4302 return (np->rx_csum) != 0;
4303 }
4304
4305 static int nv_set_rx_csum(struct net_device *dev, u32 data)
4306 {
4307 struct fe_priv *np = netdev_priv(dev);
4308 u8 __iomem *base = get_hwbase(dev);
4309 int retcode = 0;
4310
4311 if (np->driver_data & DEV_HAS_CHECKSUM) {
4312 if (data) {
4313 np->rx_csum = 1;
4314 np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
4315 } else {
4316 np->rx_csum = 0;
4317 /* vlan is dependent on rx checksum offload */
4318 if (!(np->vlanctl_bits & NVREG_VLANCONTROL_ENABLE))
4319 np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK;
4320 }
4321 if (netif_running(dev)) {
4322 spin_lock_irq(&np->lock);
4323 writel(np->txrxctl_bits, base + NvRegTxRxControl);
4324 spin_unlock_irq(&np->lock);
4325 }
4326 } else {
4327 return -EINVAL;
4328 }
4329
4330 return retcode;
4331 }
4332
4333 static int nv_set_tx_csum(struct net_device *dev, u32 data)
4334 {
4335 struct fe_priv *np = netdev_priv(dev);
4336
4337 if (np->driver_data & DEV_HAS_CHECKSUM)
4338 return ethtool_op_set_tx_hw_csum(dev, data);
4339 else
4340 return -EOPNOTSUPP;
4341 }
4342
4343 static int nv_set_sg(struct net_device *dev, u32 data)
4344 {
4345 struct fe_priv *np = netdev_priv(dev);
4346
4347 if (np->driver_data & DEV_HAS_CHECKSUM)
4348 return ethtool_op_set_sg(dev, data);
4349 else
4350 return -EOPNOTSUPP;
4351 }
4352
4353 static int nv_get_sset_count(struct net_device *dev, int sset)
4354 {
4355 struct fe_priv *np = netdev_priv(dev);
4356
4357 switch (sset) {
4358 case ETH_SS_TEST:
4359 if (np->driver_data & DEV_HAS_TEST_EXTENDED)
4360 return NV_TEST_COUNT_EXTENDED;
4361 else
4362 return NV_TEST_COUNT_BASE;
4363 case ETH_SS_STATS:
4364 if (np->driver_data & DEV_HAS_STATISTICS_V1)
4365 return NV_DEV_STATISTICS_V1_COUNT;
4366 else if (np->driver_data & DEV_HAS_STATISTICS_V2)
4367 return NV_DEV_STATISTICS_V2_COUNT;
4368 else
4369 return 0;
4370 default:
4371 return -EOPNOTSUPP;
4372 }
4373 }
4374
4375 static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer)
4376 {
4377 struct fe_priv *np = netdev_priv(dev);
4378
4379 /* update stats */
4380 nv_do_stats_poll((unsigned long)dev);
4381
4382 memcpy(buffer, &np->estats, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64));
4383 }
4384
4385 static int nv_link_test(struct net_device *dev)
4386 {
4387 struct fe_priv *np = netdev_priv(dev);
4388 int mii_status;
4389
4390 mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4391 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4392
4393 /* check phy link status */
4394 if (!(mii_status & BMSR_LSTATUS))
4395 return 0;
4396 else
4397 return 1;
4398 }
4399
4400 static int nv_register_test(struct net_device *dev)
4401 {
4402 u8 __iomem *base = get_hwbase(dev);
4403 int i = 0;
4404 u32 orig_read, new_read;
4405
4406 do {
4407 orig_read = readl(base + nv_registers_test[i].reg);
4408
4409 /* xor with mask to toggle bits */
4410 orig_read ^= nv_registers_test[i].mask;
4411
4412 writel(orig_read, base + nv_registers_test[i].reg);
4413
4414 new_read = readl(base + nv_registers_test[i].reg);
4415
4416 if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask))
4417 return 0;
4418
4419 /* restore original value */
4420 orig_read ^= nv_registers_test[i].mask;
4421 writel(orig_read, base + nv_registers_test[i].reg);
4422
4423 } while (nv_registers_test[++i].reg != 0);
4424
4425 return 1;
4426 }
4427
4428 static int nv_interrupt_test(struct net_device *dev)
4429 {
4430 struct fe_priv *np = netdev_priv(dev);
4431 u8 __iomem *base = get_hwbase(dev);
4432 int ret = 1;
4433 int testcnt;
4434 u32 save_msi_flags, save_poll_interval = 0;
4435
4436 if (netif_running(dev)) {
4437 /* free current irq */
4438 nv_free_irq(dev);
4439 save_poll_interval = readl(base+NvRegPollingInterval);
4440 }
4441
4442 /* flag to test interrupt handler */
4443 np->intr_test = 0;
4444
4445 /* setup test irq */
4446 save_msi_flags = np->msi_flags;
4447 np->msi_flags &= ~NV_MSI_X_VECTORS_MASK;
4448 np->msi_flags |= 0x001; /* setup 1 vector */
4449 if (nv_request_irq(dev, 1))
4450 return 0;
4451
4452 /* setup timer interrupt */
4453 writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
4454 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4455
4456 nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4457
4458 /* wait for at least one interrupt */
4459 msleep(100);
4460
4461 spin_lock_irq(&np->lock);
4462
4463 /* flag should be set within ISR */
4464 testcnt = np->intr_test;
4465 if (!testcnt)
4466 ret = 2;
4467
4468 nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4469 if (!(np->msi_flags & NV_MSI_X_ENABLED))
4470 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4471 else
4472 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
4473
4474 spin_unlock_irq(&np->lock);
4475
4476 nv_free_irq(dev);
4477
4478 np->msi_flags = save_msi_flags;
4479
4480 if (netif_running(dev)) {
4481 writel(save_poll_interval, base + NvRegPollingInterval);
4482 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4483 /* restore original irq */
4484 if (nv_request_irq(dev, 0))
4485 return 0;
4486 }
4487
4488 return ret;
4489 }
4490
4491 static int nv_loopback_test(struct net_device *dev)
4492 {
4493 struct fe_priv *np = netdev_priv(dev);
4494 u8 __iomem *base = get_hwbase(dev);
4495 struct sk_buff *tx_skb, *rx_skb;
4496 dma_addr_t test_dma_addr;
4497 u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
4498 u32 flags;
4499 int len, i, pkt_len;
4500 u8 *pkt_data;
4501 u32 filter_flags = 0;
4502 u32 misc1_flags = 0;
4503 int ret = 1;
4504
4505 if (netif_running(dev)) {
4506 nv_disable_irq(dev);
4507 filter_flags = readl(base + NvRegPacketFilterFlags);
4508 misc1_flags = readl(base + NvRegMisc1);
4509 } else {
4510 nv_txrx_reset(dev);
4511 }
4512
4513 /* reinit driver view of the rx queue */
4514 set_bufsize(dev);
4515 nv_init_ring(dev);
4516
4517 /* setup hardware for loopback */
4518 writel(NVREG_MISC1_FORCE, base + NvRegMisc1);
4519 writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags);
4520
4521 /* reinit nic view of the rx queue */
4522 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4523 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4524 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4525 base + NvRegRingSizes);
4526 pci_push(base);
4527
4528 /* restart rx engine */
4529 nv_start_rx(dev);
4530 nv_start_tx(dev);
4531
4532 /* setup packet for tx */
4533 pkt_len = ETH_DATA_LEN;
4534 tx_skb = dev_alloc_skb(pkt_len);
4535 if (!tx_skb) {
4536 printk(KERN_ERR "dev_alloc_skb() failed during loopback test"
4537 " of %s\n", dev->name);
4538 ret = 0;
4539 goto out;
4540 }
4541 test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
4542 skb_tailroom(tx_skb),
4543 PCI_DMA_FROMDEVICE);
4544 pkt_data = skb_put(tx_skb, pkt_len);
4545 for (i = 0; i < pkt_len; i++)
4546 pkt_data[i] = (u8)(i & 0xff);
4547
4548 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4549 np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
4550 np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4551 } else {
4552 np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr));
4553 np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr));
4554 np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4555 }
4556 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4557 pci_push(get_hwbase(dev));
4558
4559 msleep(500);
4560
4561 /* check for rx of the packet */
4562 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4563 flags = le32_to_cpu(np->rx_ring.orig[0].flaglen);
4564 len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver);
4565
4566 } else {
4567 flags = le32_to_cpu(np->rx_ring.ex[0].flaglen);
4568 len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver);
4569 }
4570
4571 if (flags & NV_RX_AVAIL) {
4572 ret = 0;
4573 } else if (np->desc_ver == DESC_VER_1) {
4574 if (flags & NV_RX_ERROR)
4575 ret = 0;
4576 } else {
4577 if (flags & NV_RX2_ERROR) {
4578 ret = 0;
4579 }
4580 }
4581
4582 if (ret) {
4583 if (len != pkt_len) {
4584 ret = 0;
4585 dprintk(KERN_DEBUG "%s: loopback len mismatch %d vs %d\n",
4586 dev->name, len, pkt_len);
4587 } else {
4588 rx_skb = np->rx_skb[0].skb;
4589 for (i = 0; i < pkt_len; i++) {
4590 if (rx_skb->data[i] != (u8)(i & 0xff)) {
4591 ret = 0;
4592 dprintk(KERN_DEBUG "%s: loopback pattern check failed on byte %d\n",
4593 dev->name, i);
4594 break;
4595 }
4596 }
4597 }
4598 } else {
4599 dprintk(KERN_DEBUG "%s: loopback - did not receive test packet\n", dev->name);
4600 }
4601
4602 pci_unmap_page(np->pci_dev, test_dma_addr,
4603 (skb_end_pointer(tx_skb) - tx_skb->data),
4604 PCI_DMA_TODEVICE);
4605 dev_kfree_skb_any(tx_skb);
4606 out:
4607 /* stop engines */
4608 nv_stop_rx(dev);
4609 nv_stop_tx(dev);
4610 nv_txrx_reset(dev);
4611 /* drain rx queue */
4612 nv_drain_rx(dev);
4613 nv_drain_tx(dev);
4614
4615 if (netif_running(dev)) {
4616 writel(misc1_flags, base + NvRegMisc1);
4617 writel(filter_flags, base + NvRegPacketFilterFlags);
4618 nv_enable_irq(dev);
4619 }
4620
4621 return ret;
4622 }
4623
4624 static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer)
4625 {
4626 struct fe_priv *np = netdev_priv(dev);
4627 u8 __iomem *base = get_hwbase(dev);
4628 int result;
4629 memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64));
4630
4631 if (!nv_link_test(dev)) {
4632 test->flags |= ETH_TEST_FL_FAILED;
4633 buffer[0] = 1;
4634 }
4635
4636 if (test->flags & ETH_TEST_FL_OFFLINE) {
4637 if (netif_running(dev)) {
4638 netif_stop_queue(dev);
4639 #ifdef CONFIG_FORCEDETH_NAPI
4640 napi_disable(&np->napi);
4641 #endif
4642 netif_tx_lock_bh(dev);
4643 spin_lock_irq(&np->lock);
4644 nv_disable_hw_interrupts(dev, np->irqmask);
4645 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
4646 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4647 } else {
4648 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
4649 }
4650 /* stop engines */
4651 nv_stop_rx(dev);
4652 nv_stop_tx(dev);
4653 nv_txrx_reset(dev);
4654 /* drain rx queue */
4655 nv_drain_rx(dev);
4656 nv_drain_tx(dev);
4657 spin_unlock_irq(&np->lock);
4658 netif_tx_unlock_bh(dev);
4659 }
4660
4661 if (!nv_register_test(dev)) {
4662 test->flags |= ETH_TEST_FL_FAILED;
4663 buffer[1] = 1;
4664 }
4665
4666 result = nv_interrupt_test(dev);
4667 if (result != 1) {
4668 test->flags |= ETH_TEST_FL_FAILED;
4669 buffer[2] = 1;
4670 }
4671 if (result == 0) {
4672 /* bail out */
4673 return;
4674 }
4675
4676 if (!nv_loopback_test(dev)) {
4677 test->flags |= ETH_TEST_FL_FAILED;
4678 buffer[3] = 1;
4679 }
4680
4681 if (netif_running(dev)) {
4682 /* reinit driver view of the rx queue */
4683 set_bufsize(dev);
4684 if (nv_init_ring(dev)) {
4685 if (!np->in_shutdown)
4686 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4687 }
4688 /* reinit nic view of the rx queue */
4689 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4690 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4691 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4692 base + NvRegRingSizes);
4693 pci_push(base);
4694 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4695 pci_push(base);
4696 /* restart rx engine */
4697 nv_start_rx(dev);
4698 nv_start_tx(dev);
4699 netif_start_queue(dev);
4700 #ifdef CONFIG_FORCEDETH_NAPI
4701 napi_enable(&np->napi);
4702 #endif
4703 nv_enable_hw_interrupts(dev, np->irqmask);
4704 }
4705 }
4706 }
4707
4708 static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer)
4709 {
4710 switch (stringset) {
4711 case ETH_SS_STATS:
4712 memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str));
4713 break;
4714 case ETH_SS_TEST:
4715 memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str));
4716 break;
4717 }
4718 }
4719
4720 static const struct ethtool_ops ops = {
4721 .get_drvinfo = nv_get_drvinfo,
4722 .get_link = ethtool_op_get_link,
4723 .get_wol = nv_get_wol,
4724 .set_wol = nv_set_wol,
4725 .get_settings = nv_get_settings,
4726 .set_settings = nv_set_settings,
4727 .get_regs_len = nv_get_regs_len,
4728 .get_regs = nv_get_regs,
4729 .nway_reset = nv_nway_reset,
4730 .set_tso = nv_set_tso,
4731 .get_ringparam = nv_get_ringparam,
4732 .set_ringparam = nv_set_ringparam,
4733 .get_pauseparam = nv_get_pauseparam,
4734 .set_pauseparam = nv_set_pauseparam,
4735 .get_rx_csum = nv_get_rx_csum,
4736 .set_rx_csum = nv_set_rx_csum,
4737 .set_tx_csum = nv_set_tx_csum,
4738 .set_sg = nv_set_sg,
4739 .get_strings = nv_get_strings,
4740 .get_ethtool_stats = nv_get_ethtool_stats,
4741 .get_sset_count = nv_get_sset_count,
4742 .self_test = nv_self_test,
4743 };
4744
4745 static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4746 {
4747 struct fe_priv *np = get_nvpriv(dev);
4748
4749 spin_lock_irq(&np->lock);
4750
4751 /* save vlan group */
4752 np->vlangrp = grp;
4753
4754 if (grp) {
4755 /* enable vlan on MAC */
4756 np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS;
4757 } else {
4758 /* disable vlan on MAC */
4759 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
4760 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
4761 }
4762
4763 writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4764
4765 spin_unlock_irq(&np->lock);
4766 }
4767
4768 /* The mgmt unit and driver use a semaphore to access the phy during init */
4769 static int nv_mgmt_acquire_sema(struct net_device *dev)
4770 {
4771 u8 __iomem *base = get_hwbase(dev);
4772 int i;
4773 u32 tx_ctrl, mgmt_sema;
4774
4775 for (i = 0; i < 10; i++) {
4776 mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK;
4777 if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE)
4778 break;
4779 msleep(500);
4780 }
4781
4782 if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE)
4783 return 0;
4784
4785 for (i = 0; i < 2; i++) {
4786 tx_ctrl = readl(base + NvRegTransmitterControl);
4787 tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ;
4788 writel(tx_ctrl, base + NvRegTransmitterControl);
4789
4790 /* verify that semaphore was acquired */
4791 tx_ctrl = readl(base + NvRegTransmitterControl);
4792 if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) &&
4793 ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE))
4794 return 1;
4795 else
4796 udelay(50);
4797 }
4798
4799 return 0;
4800 }
4801
4802 static int nv_open(struct net_device *dev)
4803 {
4804 struct fe_priv *np = netdev_priv(dev);
4805 u8 __iomem *base = get_hwbase(dev);
4806 int ret = 1;
4807 int oom, i;
4808
4809 dprintk(KERN_DEBUG "nv_open: begin\n");
4810
4811 /* erase previous misconfiguration */
4812 if (np->driver_data & DEV_HAS_POWER_CNTRL)
4813 nv_mac_reset(dev);
4814 writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
4815 writel(0, base + NvRegMulticastAddrB);
4816 writel(0, base + NvRegMulticastMaskA);
4817 writel(0, base + NvRegMulticastMaskB);
4818 writel(0, base + NvRegPacketFilterFlags);
4819
4820 writel(0, base + NvRegTransmitterControl);
4821 writel(0, base + NvRegReceiverControl);
4822
4823 writel(0, base + NvRegAdapterControl);
4824
4825 if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)
4826 writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
4827
4828 /* initialize descriptor rings */
4829 set_bufsize(dev);
4830 oom = nv_init_ring(dev);
4831
4832 writel(0, base + NvRegLinkSpeed);
4833 writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
4834 nv_txrx_reset(dev);
4835 writel(0, base + NvRegUnknownSetupReg6);
4836
4837 np->in_shutdown = 0;
4838
4839 /* give hw rings */
4840 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4841 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4842 base + NvRegRingSizes);
4843
4844 writel(np->linkspeed, base + NvRegLinkSpeed);
4845 if (np->desc_ver == DESC_VER_1)
4846 writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark);
4847 else
4848 writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark);
4849 writel(np->txrxctl_bits, base + NvRegTxRxControl);
4850 writel(np->vlanctl_bits, base + NvRegVlanControl);
4851 pci_push(base);
4852 writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl);
4853 reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
4854 NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX,
4855 KERN_INFO "open: SetupReg5, Bit 31 remained off\n");
4856
4857 writel(0, base + NvRegMIIMask);
4858 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4859 writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
4860
4861 writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
4862 writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
4863 writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
4864 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4865
4866 writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus);
4867 get_random_bytes(&i, sizeof(i));
4868 writel(NVREG_RNDSEED_FORCE | (i&NVREG_RNDSEED_MASK), base + NvRegRandomSeed);
4869 writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral);
4870 writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral);
4871 if (poll_interval == -1) {
4872 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT)
4873 writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval);
4874 else
4875 writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
4876 }
4877 else
4878 writel(poll_interval & 0xFFFF, base + NvRegPollingInterval);
4879 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4880 writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
4881 base + NvRegAdapterControl);
4882 writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
4883 writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask);
4884 if (np->wolenabled)
4885 writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags);
4886
4887 i = readl(base + NvRegPowerState);
4888 if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0)
4889 writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
4890
4891 pci_push(base);
4892 udelay(10);
4893 writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
4894
4895 nv_disable_hw_interrupts(dev, np->irqmask);
4896 pci_push(base);
4897 writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
4898 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4899 pci_push(base);
4900
4901 if (nv_request_irq(dev, 0)) {
4902 goto out_drain;
4903 }
4904
4905 /* ask for interrupts */
4906 nv_enable_hw_interrupts(dev, np->irqmask);
4907
4908 spin_lock_irq(&np->lock);
4909 writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
4910 writel(0, base + NvRegMulticastAddrB);
4911 writel(0, base + NvRegMulticastMaskA);
4912 writel(0, base + NvRegMulticastMaskB);
4913 writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
4914 /* One manual link speed update: Interrupts are enabled, future link
4915 * speed changes cause interrupts and are handled by nv_link_irq().
4916 */
4917 {
4918 u32 miistat;
4919 miistat = readl(base + NvRegMIIStatus);
4920 writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
4921 dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat);
4922 }
4923 /* set linkspeed to invalid value, thus force nv_update_linkspeed
4924 * to init hw */
4925 np->linkspeed = 0;
4926 ret = nv_update_linkspeed(dev);
4927 nv_start_rx(dev);
4928 nv_start_tx(dev);
4929 netif_start_queue(dev);
4930 #ifdef CONFIG_FORCEDETH_NAPI
4931 napi_enable(&np->napi);
4932 #endif
4933
4934 if (ret) {
4935 netif_carrier_on(dev);
4936 } else {
4937 printk(KERN_INFO "%s: no link during initialization.\n", dev->name);
4938 netif_carrier_off(dev);
4939 }
4940 if (oom)
4941 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4942
4943 /* start statistics timer */
4944 if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2))
4945 mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
4946
4947 spin_unlock_irq(&np->lock);
4948
4949 return 0;
4950 out_drain:
4951 drain_ring(dev);
4952 return ret;
4953 }
4954
4955 static int nv_close(struct net_device *dev)
4956 {
4957 struct fe_priv *np = netdev_priv(dev);
4958 u8 __iomem *base;
4959
4960 spin_lock_irq(&np->lock);
4961 np->in_shutdown = 1;
4962 spin_unlock_irq(&np->lock);
4963 #ifdef CONFIG_FORCEDETH_NAPI
4964 napi_disable(&np->napi);
4965 #endif
4966 synchronize_irq(np->pci_dev->irq);
4967
4968 del_timer_sync(&np->oom_kick);
4969 del_timer_sync(&np->nic_poll);
4970 del_timer_sync(&np->stats_poll);
4971
4972 netif_stop_queue(dev);
4973 spin_lock_irq(&np->lock);
4974 nv_stop_tx(dev);
4975 nv_stop_rx(dev);
4976 nv_txrx_reset(dev);
4977
4978 /* disable interrupts on the nic or we will lock up */
4979 base = get_hwbase(dev);
4980 nv_disable_hw_interrupts(dev, np->irqmask);
4981 pci_push(base);
4982 dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name);
4983
4984 spin_unlock_irq(&np->lock);
4985
4986 nv_free_irq(dev);
4987
4988 drain_ring(dev);
4989
4990 if (np->wolenabled) {
4991 writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
4992 nv_start_rx(dev);
4993 }
4994
4995 /* FIXME: power down nic */
4996
4997 return 0;
4998 }
4999
5000 static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
5001 {
5002 struct net_device *dev;
5003 struct fe_priv *np;
5004 unsigned long addr;
5005 u8 __iomem *base;
5006 int err, i;
5007 u32 powerstate, txreg;
5008 u32 phystate_orig = 0, phystate;
5009 int phyinitialized = 0;
5010 DECLARE_MAC_BUF(mac);
5011 static int printed_version;
5012
5013 if (!printed_version++)
5014 printk(KERN_INFO "%s: Reverse Engineered nForce ethernet"
5015 " driver. Version %s.\n", DRV_NAME, FORCEDETH_VERSION);
5016
5017 dev = alloc_etherdev(sizeof(struct fe_priv));
5018 err = -ENOMEM;
5019 if (!dev)
5020 goto out;
5021
5022 np = netdev_priv(dev);
5023 np->dev = dev;
5024 np->pci_dev = pci_dev;
5025 spin_lock_init(&np->lock);
5026 SET_NETDEV_DEV(dev, &pci_dev->dev);
5027
5028 init_timer(&np->oom_kick);
5029 np->oom_kick.data = (unsigned long) dev;
5030 np->oom_kick.function = &nv_do_rx_refill; /* timer handler */
5031 init_timer(&np->nic_poll);
5032 np->nic_poll.data = (unsigned long) dev;
5033 np->nic_poll.function = &nv_do_nic_poll; /* timer handler */
5034 init_timer(&np->stats_poll);
5035 np->stats_poll.data = (unsigned long) dev;
5036 np->stats_poll.function = &nv_do_stats_poll; /* timer handler */
5037
5038 err = pci_enable_device(pci_dev);
5039 if (err)
5040 goto out_free;
5041
5042 pci_set_master(pci_dev);
5043
5044 err = pci_request_regions(pci_dev, DRV_NAME);
5045 if (err < 0)
5046 goto out_disable;
5047
5048 if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V2))
5049 np->register_size = NV_PCI_REGSZ_VER3;
5050 else if (id->driver_data & DEV_HAS_STATISTICS_V1)
5051 np->register_size = NV_PCI_REGSZ_VER2;
5052 else
5053 np->register_size = NV_PCI_REGSZ_VER1;
5054
5055 err = -EINVAL;
5056 addr = 0;
5057 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
5058 dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n",
5059 pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i),
5060 pci_resource_len(pci_dev, i),
5061 pci_resource_flags(pci_dev, i));
5062 if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
5063 pci_resource_len(pci_dev, i) >= np->register_size) {
5064 addr = pci_resource_start(pci_dev, i);
5065 break;
5066 }
5067 }
5068 if (i == DEVICE_COUNT_RESOURCE) {
5069 dev_printk(KERN_INFO, &pci_dev->dev,
5070 "Couldn't find register window\n");
5071 goto out_relreg;
5072 }
5073
5074 /* copy of driver data */
5075 np->driver_data = id->driver_data;
5076
5077 /* handle different descriptor versions */
5078 if (id->driver_data & DEV_HAS_HIGH_DMA) {
5079 /* packet format 3: supports 40-bit addressing */
5080 np->desc_ver = DESC_VER_3;
5081 np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
5082 if (dma_64bit) {
5083 if (pci_set_dma_mask(pci_dev, DMA_39BIT_MASK))
5084 dev_printk(KERN_INFO, &pci_dev->dev,
5085 "64-bit DMA failed, using 32-bit addressing\n");
5086 else
5087 dev->features |= NETIF_F_HIGHDMA;
5088 if (pci_set_consistent_dma_mask(pci_dev, DMA_39BIT_MASK)) {
5089 dev_printk(KERN_INFO, &pci_dev->dev,
5090 "64-bit DMA (consistent) failed, using 32-bit ring buffers\n");
5091 }
5092 }
5093 } else if (id->driver_data & DEV_HAS_LARGEDESC) {
5094 /* packet format 2: supports jumbo frames */
5095 np->desc_ver = DESC_VER_2;
5096 np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
5097 } else {
5098 /* original packet format */
5099 np->desc_ver = DESC_VER_1;
5100 np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
5101 }
5102
5103 np->pkt_limit = NV_PKTLIMIT_1;
5104 if (id->driver_data & DEV_HAS_LARGEDESC)
5105 np->pkt_limit = NV_PKTLIMIT_2;
5106
5107 if (id->driver_data & DEV_HAS_CHECKSUM) {
5108 np->rx_csum = 1;
5109 np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
5110 dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG;
5111 dev->features |= NETIF_F_TSO;
5112 }
5113
5114 np->vlanctl_bits = 0;
5115 if (id->driver_data & DEV_HAS_VLAN) {
5116 np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
5117 dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
5118 dev->vlan_rx_register = nv_vlan_rx_register;
5119 }
5120
5121 np->msi_flags = 0;
5122 if ((id->driver_data & DEV_HAS_MSI) && msi) {
5123 np->msi_flags |= NV_MSI_CAPABLE;
5124 }
5125 if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
5126 np->msi_flags |= NV_MSI_X_CAPABLE;
5127 }
5128
5129 np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
5130 if (id->driver_data & DEV_HAS_PAUSEFRAME_TX) {
5131 np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ;
5132 }
5133
5134
5135 err = -ENOMEM;
5136 np->base = ioremap(addr, np->register_size);
5137 if (!np->base)
5138 goto out_relreg;
5139 dev->base_addr = (unsigned long)np->base;
5140
5141 dev->irq = pci_dev->irq;
5142
5143 np->rx_ring_size = RX_RING_DEFAULT;
5144 np->tx_ring_size = TX_RING_DEFAULT;
5145
5146 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
5147 np->rx_ring.orig = pci_alloc_consistent(pci_dev,
5148 sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
5149 &np->ring_addr);
5150 if (!np->rx_ring.orig)
5151 goto out_unmap;
5152 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
5153 } else {
5154 np->rx_ring.ex = pci_alloc_consistent(pci_dev,
5155 sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
5156 &np->ring_addr);
5157 if (!np->rx_ring.ex)
5158 goto out_unmap;
5159 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
5160 }
5161 np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5162 np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5163 if (!np->rx_skb || !np->tx_skb)
5164 goto out_freering;
5165
5166 dev->open = nv_open;
5167 dev->stop = nv_close;
5168 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
5169 dev->hard_start_xmit = nv_start_xmit;
5170 else
5171 dev->hard_start_xmit = nv_start_xmit_optimized;
5172 dev->get_stats = nv_get_stats;
5173 dev->change_mtu = nv_change_mtu;
5174 dev->set_mac_address = nv_set_mac_address;
5175 dev->set_multicast_list = nv_set_multicast;
5176 #ifdef CONFIG_NET_POLL_CONTROLLER
5177 dev->poll_controller = nv_poll_controller;
5178 #endif
5179 #ifdef CONFIG_FORCEDETH_NAPI
5180 netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
5181 #endif
5182 SET_ETHTOOL_OPS(dev, &ops);
5183 dev->tx_timeout = nv_tx_timeout;
5184 dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
5185
5186 pci_set_drvdata(pci_dev, dev);
5187
5188 /* read the mac address */
5189 base = get_hwbase(dev);
5190 np->orig_mac[0] = readl(base + NvRegMacAddrA);
5191 np->orig_mac[1] = readl(base + NvRegMacAddrB);
5192
5193 /* check the workaround bit for correct mac address order */
5194 txreg = readl(base + NvRegTransmitPoll);
5195 if ((txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) ||
5196 (id->driver_data & DEV_HAS_CORRECT_MACADDR)) {
5197 /* mac address is already in correct order */
5198 dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff;
5199 dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff;
5200 dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
5201 dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
5202 dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff;
5203 dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff;
5204 } else {
5205 /* need to reverse mac address to correct order */
5206 dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff;
5207 dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff;
5208 dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
5209 dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
5210 dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff;
5211 dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff;
5212 writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
5213 }
5214 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
5215
5216 if (!is_valid_ether_addr(dev->perm_addr)) {
5217 /*
5218 * Bad mac address. At least one bios sets the mac address
5219 * to 01:23:45:67:89:ab
5220 */
5221 dev_printk(KERN_ERR, &pci_dev->dev,
5222 "Invalid Mac address detected: %s\n",
5223 print_mac(mac, dev->dev_addr));
5224 dev_printk(KERN_ERR, &pci_dev->dev,
5225 "Please complain to your hardware vendor. Switching to a random MAC.\n");
5226 dev->dev_addr[0] = 0x00;
5227 dev->dev_addr[1] = 0x00;
5228 dev->dev_addr[2] = 0x6c;
5229 get_random_bytes(&dev->dev_addr[3], 3);
5230 }
5231
5232 dprintk(KERN_DEBUG "%s: MAC Address %s\n",
5233 pci_name(pci_dev), print_mac(mac, dev->dev_addr));
5234
5235 /* set mac address */
5236 nv_copy_mac_to_hw(dev);
5237
5238 /* disable WOL */
5239 writel(0, base + NvRegWakeUpFlags);
5240 np->wolenabled = 0;
5241
5242 if (id->driver_data & DEV_HAS_POWER_CNTRL) {
5243
5244 /* take phy and nic out of low power mode */
5245 powerstate = readl(base + NvRegPowerState2);
5246 powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
5247 if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
5248 id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) &&
5249 pci_dev->revision >= 0xA3)
5250 powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
5251 writel(powerstate, base + NvRegPowerState2);
5252 }
5253
5254 if (np->desc_ver == DESC_VER_1) {
5255 np->tx_flags = NV_TX_VALID;
5256 } else {
5257 np->tx_flags = NV_TX2_VALID;
5258 }
5259 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) {
5260 np->irqmask = NVREG_IRQMASK_THROUGHPUT;
5261 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5262 np->msi_flags |= 0x0003;
5263 } else {
5264 np->irqmask = NVREG_IRQMASK_CPU;
5265 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5266 np->msi_flags |= 0x0001;
5267 }
5268
5269 if (id->driver_data & DEV_NEED_TIMERIRQ)
5270 np->irqmask |= NVREG_IRQ_TIMER;
5271 if (id->driver_data & DEV_NEED_LINKTIMER) {
5272 dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev));
5273 np->need_linktimer = 1;
5274 np->link_timeout = jiffies + LINK_TIMEOUT;
5275 } else {
5276 dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev));
5277 np->need_linktimer = 0;
5278 }
5279
5280 /* clear phy state and temporarily halt phy interrupts */
5281 writel(0, base + NvRegMIIMask);
5282 phystate = readl(base + NvRegAdapterControl);
5283 if (phystate & NVREG_ADAPTCTL_RUNNING) {
5284 phystate_orig = 1;
5285 phystate &= ~NVREG_ADAPTCTL_RUNNING;
5286 writel(phystate, base + NvRegAdapterControl);
5287 }
5288 writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
5289
5290 if (id->driver_data & DEV_HAS_MGMT_UNIT) {
5291 /* management unit running on the mac? */
5292 if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) {
5293 np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
5294 dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use);
5295 if (nv_mgmt_acquire_sema(dev)) {
5296 /* management unit setup the phy already? */
5297 if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
5298 NVREG_XMITCTL_SYNC_PHY_INIT) {
5299 /* phy is inited by mgmt unit */
5300 phyinitialized = 1;
5301 dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
5302 } else {
5303 /* we need to init the phy */
5304 }
5305 }
5306 }
5307 }
5308
5309 /* find a suitable phy */
5310 for (i = 1; i <= 32; i++) {
5311 int id1, id2;
5312 int phyaddr = i & 0x1F;
5313
5314 spin_lock_irq(&np->lock);
5315 id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ);
5316 spin_unlock_irq(&np->lock);
5317 if (id1 < 0 || id1 == 0xffff)
5318 continue;
5319 spin_lock_irq(&np->lock);
5320 id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ);
5321 spin_unlock_irq(&np->lock);
5322 if (id2 < 0 || id2 == 0xffff)
5323 continue;
5324
5325 np->phy_model = id2 & PHYID2_MODEL_MASK;
5326 id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
5327 id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
5328 dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
5329 pci_name(pci_dev), id1, id2, phyaddr);
5330 np->phyaddr = phyaddr;
5331 np->phy_oui = id1 | id2;
5332 break;
5333 }
5334 if (i == 33) {
5335 dev_printk(KERN_INFO, &pci_dev->dev,
5336 "open: Could not find a valid PHY.\n");
5337 goto out_error;
5338 }
5339
5340 if (!phyinitialized) {
5341 /* reset it */
5342 phy_init(dev);
5343 } else {
5344 /* see if it is a gigabit phy */
5345 u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
5346 if (mii_status & PHY_GIGABIT) {
5347 np->gigabit = PHY_GIGABIT;
5348 }
5349 }
5350
5351 /* set default link speed settings */
5352 np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
5353 np->duplex = 0;
5354 np->autoneg = 1;
5355
5356 err = register_netdev(dev);
5357 if (err) {
5358 dev_printk(KERN_INFO, &pci_dev->dev,
5359 "unable to register netdev: %d\n", err);
5360 goto out_error;
5361 }
5362
5363 dev_printk(KERN_INFO, &pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, "
5364 "addr %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
5365 dev->name,
5366 np->phy_oui,
5367 np->phyaddr,
5368 dev->dev_addr[0],
5369 dev->dev_addr[1],
5370 dev->dev_addr[2],
5371 dev->dev_addr[3],
5372 dev->dev_addr[4],
5373 dev->dev_addr[5]);
5374
5375 dev_printk(KERN_INFO, &pci_dev->dev, "%s%s%s%s%s%s%s%s%s%sdesc-v%u\n",
5376 dev->features & NETIF_F_HIGHDMA ? "highdma " : "",
5377 dev->features & (NETIF_F_HW_CSUM | NETIF_F_SG) ?
5378 "csum " : "",
5379 dev->features & (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX) ?
5380 "vlan " : "",
5381 id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "",
5382 id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "",
5383 id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "",
5384 np->gigabit == PHY_GIGABIT ? "gbit " : "",
5385 np->need_linktimer ? "lnktim " : "",
5386 np->msi_flags & NV_MSI_CAPABLE ? "msi " : "",
5387 np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "",
5388 np->desc_ver);
5389
5390 return 0;
5391
5392 out_error:
5393 if (phystate_orig)
5394 writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
5395 pci_set_drvdata(pci_dev, NULL);
5396 out_freering:
5397 free_rings(dev);
5398 out_unmap:
5399 iounmap(get_hwbase(dev));
5400 out_relreg:
5401 pci_release_regions(pci_dev);
5402 out_disable:
5403 pci_disable_device(pci_dev);
5404 out_free:
5405 free_netdev(dev);
5406 out:
5407 return err;
5408 }
5409
5410 static void __devexit nv_remove(struct pci_dev *pci_dev)
5411 {
5412 struct net_device *dev = pci_get_drvdata(pci_dev);
5413 struct fe_priv *np = netdev_priv(dev);
5414 u8 __iomem *base = get_hwbase(dev);
5415
5416 unregister_netdev(dev);
5417
5418 /* special op: write back the misordered MAC address - otherwise
5419 * the next nv_probe would see a wrong address.
5420 */
5421 writel(np->orig_mac[0], base + NvRegMacAddrA);
5422 writel(np->orig_mac[1], base + NvRegMacAddrB);
5423 writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
5424 base + NvRegTransmitPoll);
5425
5426 /* free all structures */
5427 free_rings(dev);
5428 iounmap(get_hwbase(dev));
5429 pci_release_regions(pci_dev);
5430 pci_disable_device(pci_dev);
5431 free_netdev(dev);
5432 pci_set_drvdata(pci_dev, NULL);
5433 }
5434
5435 #ifdef CONFIG_PM
5436 static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
5437 {
5438 struct net_device *dev = pci_get_drvdata(pdev);
5439 struct fe_priv *np = netdev_priv(dev);
5440
5441 if (!netif_running(dev))
5442 goto out;
5443
5444 netif_device_detach(dev);
5445
5446 // Gross.
5447 nv_close(dev);
5448
5449 pci_save_state(pdev);
5450 pci_enable_wake(pdev, pci_choose_state(pdev, state), np->wolenabled);
5451 pci_set_power_state(pdev, pci_choose_state(pdev, state));
5452 out:
5453 return 0;
5454 }
5455
5456 static int nv_resume(struct pci_dev *pdev)
5457 {
5458 struct net_device *dev = pci_get_drvdata(pdev);
5459 int rc = 0;
5460
5461 if (!netif_running(dev))
5462 goto out;
5463
5464 netif_device_attach(dev);
5465
5466 pci_set_power_state(pdev, PCI_D0);
5467 pci_restore_state(pdev);
5468 pci_enable_wake(pdev, PCI_D0, 0);
5469
5470 rc = nv_open(dev);
5471 out:
5472 return rc;
5473 }
5474 #else
5475 #define nv_suspend NULL
5476 #define nv_resume NULL
5477 #endif /* CONFIG_PM */
5478
5479 static struct pci_device_id pci_tbl[] = {
5480 { /* nForce Ethernet Controller */
5481 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_1),
5482 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5483 },
5484 { /* nForce2 Ethernet Controller */
5485 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_2),
5486 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5487 },
5488 { /* nForce3 Ethernet Controller */
5489 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_3),
5490 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5491 },
5492 { /* nForce3 Ethernet Controller */
5493 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4),
5494 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5495 },
5496 { /* nForce3 Ethernet Controller */
5497 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5),
5498 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5499 },
5500 { /* nForce3 Ethernet Controller */
5501 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6),
5502 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5503 },
5504 { /* nForce3 Ethernet Controller */
5505 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7),
5506 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5507 },
5508 { /* CK804 Ethernet Controller */
5509 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8),
5510 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5511 },
5512 { /* CK804 Ethernet Controller */
5513 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9),
5514 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5515 },
5516 { /* MCP04 Ethernet Controller */
5517 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
5518 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5519 },
5520 { /* MCP04 Ethernet Controller */
5521 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
5522 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5523 },
5524 { /* MCP51 Ethernet Controller */
5525 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
5526 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
5527 },
5528 { /* MCP51 Ethernet Controller */
5529 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
5530 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
5531 },
5532 { /* MCP55 Ethernet Controller */
5533 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
5534 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5535 },
5536 { /* MCP55 Ethernet Controller */
5537 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
5538 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5539 },
5540 { /* MCP61 Ethernet Controller */
5541 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16),
5542 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5543 },
5544 { /* MCP61 Ethernet Controller */
5545 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17),
5546 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5547 },
5548 { /* MCP61 Ethernet Controller */
5549 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18),
5550 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5551 },
5552 { /* MCP61 Ethernet Controller */
5553 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19),
5554 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5555 },
5556 { /* MCP65 Ethernet Controller */
5557 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20),
5558 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5559 },
5560 { /* MCP65 Ethernet Controller */
5561 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21),
5562 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5563 },
5564 { /* MCP65 Ethernet Controller */
5565 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22),
5566 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5567 },
5568 { /* MCP65 Ethernet Controller */
5569 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23),
5570 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5571 },
5572 { /* MCP67 Ethernet Controller */
5573 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24),
5574 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5575 },
5576 { /* MCP67 Ethernet Controller */
5577 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_25),
5578 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5579 },
5580 { /* MCP67 Ethernet Controller */
5581 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_26),
5582 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5583 },
5584 { /* MCP67 Ethernet Controller */
5585 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_27),
5586 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5587 },
5588 { /* MCP73 Ethernet Controller */
5589 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_28),
5590 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5591 },
5592 { /* MCP73 Ethernet Controller */
5593 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_29),
5594 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5595 },
5596 { /* MCP73 Ethernet Controller */
5597 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_30),
5598 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5599 },
5600 { /* MCP73 Ethernet Controller */
5601 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_31),
5602 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5603 },
5604 { /* MCP77 Ethernet Controller */
5605 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32),
5606 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5607 },
5608 { /* MCP77 Ethernet Controller */
5609 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33),
5610 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5611 },
5612 { /* MCP77 Ethernet Controller */
5613 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34),
5614 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5615 },
5616 { /* MCP77 Ethernet Controller */
5617 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35),
5618 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5619 },
5620 { /* MCP79 Ethernet Controller */
5621 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36),
5622 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5623 },
5624 { /* MCP79 Ethernet Controller */
5625 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37),
5626 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5627 },
5628 { /* MCP79 Ethernet Controller */
5629 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38),
5630 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5631 },
5632 { /* MCP79 Ethernet Controller */
5633 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39),
5634 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5635 },
5636 {0,},
5637 };
5638
5639 static struct pci_driver driver = {
5640 .name = DRV_NAME,
5641 .id_table = pci_tbl,
5642 .probe = nv_probe,
5643 .remove = __devexit_p(nv_remove),
5644 .suspend = nv_suspend,
5645 .resume = nv_resume,
5646 };
5647
5648 static int __init init_nic(void)
5649 {
5650 return pci_register_driver(&driver);
5651 }
5652
5653 static void __exit exit_nic(void)
5654 {
5655 pci_unregister_driver(&driver);
5656 }
5657
5658 module_param(max_interrupt_work, int, 0);
5659 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
5660 module_param(optimization_mode, int, 0);
5661 MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer.");
5662 module_param(poll_interval, int, 0);
5663 MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535.");
5664 module_param(msi, int, 0);
5665 MODULE_PARM_DESC(msi, "MSI interrupts are enabled by setting to 1 and disabled by setting to 0.");
5666 module_param(msix, int, 0);
5667 MODULE_PARM_DESC(msix, "MSIX interrupts are enabled by setting to 1 and disabled by setting to 0.");
5668 module_param(dma_64bit, int, 0);
5669 MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0.");
5670
5671 MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
5672 MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
5673 MODULE_LICENSE("GPL");
5674
5675 MODULE_DEVICE_TABLE(pci, pci_tbl);
5676
5677 module_init(init_nic);
5678 module_exit(exit_nic);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree