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801b4d9cd97254593ce2af8c4c3b8aa750c60585
[deliverable/linux.git] / drivers / net / forcedeth.c
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) 2004,2005,2006,2007,2008 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 0x00001 /* set the timer irq flag in the irq mask */
170 #define DEV_NEED_LINKTIMER 0x00002 /* poll link settings. Relies on the timer irq */
171 #define DEV_HAS_LARGEDESC 0x00004 /* device supports jumbo frames and needs packet format 2 */
172 #define DEV_HAS_HIGH_DMA 0x00008 /* device supports 64bit dma */
173 #define DEV_HAS_CHECKSUM 0x00010 /* device supports tx and rx checksum offloads */
174 #define DEV_HAS_VLAN 0x00020 /* device supports vlan tagging and striping */
175 #define DEV_HAS_MSI 0x00040 /* device supports MSI */
176 #define DEV_HAS_MSI_X 0x00080 /* device supports MSI-X */
177 #define DEV_HAS_POWER_CNTRL 0x00100 /* device supports power savings */
178 #define DEV_HAS_STATISTICS_V1 0x00200 /* device supports hw statistics version 1 */
179 #define DEV_HAS_STATISTICS_V2 0x00400 /* device supports hw statistics version 2 */
180 #define DEV_HAS_TEST_EXTENDED 0x00800 /* device supports extended diagnostic test */
181 #define DEV_HAS_MGMT_UNIT 0x01000 /* device supports management unit */
182 #define DEV_HAS_CORRECT_MACADDR 0x02000 /* device supports correct mac address order */
183 #define DEV_HAS_COLLISION_FIX 0x04000 /* device supports tx collision fix */
184 #define DEV_HAS_PAUSEFRAME_TX_V1 0x08000 /* device supports tx pause frames version 1 */
185 #define DEV_HAS_PAUSEFRAME_TX_V2 0x10000 /* device supports tx pause frames version 2 */
186 #define DEV_HAS_PAUSEFRAME_TX_V3 0x20000 /* device supports tx pause frames version 3 */
187
188 enum {
189 NvRegIrqStatus = 0x000,
190 #define NVREG_IRQSTAT_MIIEVENT 0x040
191 #define NVREG_IRQSTAT_MASK 0x81ff
192 NvRegIrqMask = 0x004,
193 #define NVREG_IRQ_RX_ERROR 0x0001
194 #define NVREG_IRQ_RX 0x0002
195 #define NVREG_IRQ_RX_NOBUF 0x0004
196 #define NVREG_IRQ_TX_ERR 0x0008
197 #define NVREG_IRQ_TX_OK 0x0010
198 #define NVREG_IRQ_TIMER 0x0020
199 #define NVREG_IRQ_LINK 0x0040
200 #define NVREG_IRQ_RX_FORCED 0x0080
201 #define NVREG_IRQ_TX_FORCED 0x0100
202 #define NVREG_IRQ_RECOVER_ERROR 0x8000
203 #define NVREG_IRQMASK_THROUGHPUT 0x00df
204 #define NVREG_IRQMASK_CPU 0x0060
205 #define NVREG_IRQ_TX_ALL (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED)
206 #define NVREG_IRQ_RX_ALL (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
207 #define NVREG_IRQ_OTHER (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
208
209 #define NVREG_IRQ_UNKNOWN (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \
210 NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RX_FORCED| \
211 NVREG_IRQ_TX_FORCED|NVREG_IRQ_RECOVER_ERROR))
212
213 NvRegUnknownSetupReg6 = 0x008,
214 #define NVREG_UNKSETUP6_VAL 3
215
216 /*
217 * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
218 * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
219 */
220 NvRegPollingInterval = 0x00c,
221 #define NVREG_POLL_DEFAULT_THROUGHPUT 970 /* backup tx cleanup if loop max reached */
222 #define NVREG_POLL_DEFAULT_CPU 13
223 NvRegMSIMap0 = 0x020,
224 NvRegMSIMap1 = 0x024,
225 NvRegMSIIrqMask = 0x030,
226 #define NVREG_MSI_VECTOR_0_ENABLED 0x01
227 NvRegMisc1 = 0x080,
228 #define NVREG_MISC1_PAUSE_TX 0x01
229 #define NVREG_MISC1_HD 0x02
230 #define NVREG_MISC1_FORCE 0x3b0f3c
231
232 NvRegMacReset = 0x34,
233 #define NVREG_MAC_RESET_ASSERT 0x0F3
234 NvRegTransmitterControl = 0x084,
235 #define NVREG_XMITCTL_START 0x01
236 #define NVREG_XMITCTL_MGMT_ST 0x40000000
237 #define NVREG_XMITCTL_SYNC_MASK 0x000f0000
238 #define NVREG_XMITCTL_SYNC_NOT_READY 0x0
239 #define NVREG_XMITCTL_SYNC_PHY_INIT 0x00040000
240 #define NVREG_XMITCTL_MGMT_SEMA_MASK 0x00000f00
241 #define NVREG_XMITCTL_MGMT_SEMA_FREE 0x0
242 #define NVREG_XMITCTL_HOST_SEMA_MASK 0x0000f000
243 #define NVREG_XMITCTL_HOST_SEMA_ACQ 0x0000f000
244 #define NVREG_XMITCTL_HOST_LOADED 0x00004000
245 #define NVREG_XMITCTL_TX_PATH_EN 0x01000000
246 NvRegTransmitterStatus = 0x088,
247 #define NVREG_XMITSTAT_BUSY 0x01
248
249 NvRegPacketFilterFlags = 0x8c,
250 #define NVREG_PFF_PAUSE_RX 0x08
251 #define NVREG_PFF_ALWAYS 0x7F0000
252 #define NVREG_PFF_PROMISC 0x80
253 #define NVREG_PFF_MYADDR 0x20
254 #define NVREG_PFF_LOOPBACK 0x10
255
256 NvRegOffloadConfig = 0x90,
257 #define NVREG_OFFLOAD_HOMEPHY 0x601
258 #define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE
259 NvRegReceiverControl = 0x094,
260 #define NVREG_RCVCTL_START 0x01
261 #define NVREG_RCVCTL_RX_PATH_EN 0x01000000
262 NvRegReceiverStatus = 0x98,
263 #define NVREG_RCVSTAT_BUSY 0x01
264
265 NvRegRandomSeed = 0x9c,
266 #define NVREG_RNDSEED_MASK 0x00ff
267 #define NVREG_RNDSEED_FORCE 0x7f00
268 #define NVREG_RNDSEED_FORCE2 0x2d00
269 #define NVREG_RNDSEED_FORCE3 0x7400
270
271 NvRegTxDeferral = 0xA0,
272 #define NVREG_TX_DEFERRAL_DEFAULT 0x15050f
273 #define NVREG_TX_DEFERRAL_RGMII_10_100 0x16070f
274 #define NVREG_TX_DEFERRAL_RGMII_1000 0x14050f
275 #define NVREG_TX_DEFERRAL_RGMII_STRETCH_10 0x16190f
276 #define NVREG_TX_DEFERRAL_RGMII_STRETCH_100 0x16300f
277 #define NVREG_TX_DEFERRAL_MII_STRETCH 0x152000
278 NvRegRxDeferral = 0xA4,
279 #define NVREG_RX_DEFERRAL_DEFAULT 0x16
280 NvRegMacAddrA = 0xA8,
281 NvRegMacAddrB = 0xAC,
282 NvRegMulticastAddrA = 0xB0,
283 #define NVREG_MCASTADDRA_FORCE 0x01
284 NvRegMulticastAddrB = 0xB4,
285 NvRegMulticastMaskA = 0xB8,
286 #define NVREG_MCASTMASKA_NONE 0xffffffff
287 NvRegMulticastMaskB = 0xBC,
288 #define NVREG_MCASTMASKB_NONE 0xffff
289
290 NvRegPhyInterface = 0xC0,
291 #define PHY_RGMII 0x10000000
292
293 NvRegTxRingPhysAddr = 0x100,
294 NvRegRxRingPhysAddr = 0x104,
295 NvRegRingSizes = 0x108,
296 #define NVREG_RINGSZ_TXSHIFT 0
297 #define NVREG_RINGSZ_RXSHIFT 16
298 NvRegTransmitPoll = 0x10c,
299 #define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000
300 NvRegLinkSpeed = 0x110,
301 #define NVREG_LINKSPEED_FORCE 0x10000
302 #define NVREG_LINKSPEED_10 1000
303 #define NVREG_LINKSPEED_100 100
304 #define NVREG_LINKSPEED_1000 50
305 #define NVREG_LINKSPEED_MASK (0xFFF)
306 NvRegUnknownSetupReg5 = 0x130,
307 #define NVREG_UNKSETUP5_BIT31 (1<<31)
308 NvRegTxWatermark = 0x13c,
309 #define NVREG_TX_WM_DESC1_DEFAULT 0x0200010
310 #define NVREG_TX_WM_DESC2_3_DEFAULT 0x1e08000
311 #define NVREG_TX_WM_DESC2_3_1000 0xfe08000
312 NvRegTxRxControl = 0x144,
313 #define NVREG_TXRXCTL_KICK 0x0001
314 #define NVREG_TXRXCTL_BIT1 0x0002
315 #define NVREG_TXRXCTL_BIT2 0x0004
316 #define NVREG_TXRXCTL_IDLE 0x0008
317 #define NVREG_TXRXCTL_RESET 0x0010
318 #define NVREG_TXRXCTL_RXCHECK 0x0400
319 #define NVREG_TXRXCTL_DESC_1 0
320 #define NVREG_TXRXCTL_DESC_2 0x002100
321 #define NVREG_TXRXCTL_DESC_3 0xc02200
322 #define NVREG_TXRXCTL_VLANSTRIP 0x00040
323 #define NVREG_TXRXCTL_VLANINS 0x00080
324 NvRegTxRingPhysAddrHigh = 0x148,
325 NvRegRxRingPhysAddrHigh = 0x14C,
326 NvRegTxPauseFrame = 0x170,
327 #define NVREG_TX_PAUSEFRAME_DISABLE 0x0fff0080
328 #define NVREG_TX_PAUSEFRAME_ENABLE_V1 0x01800010
329 #define NVREG_TX_PAUSEFRAME_ENABLE_V2 0x056003f0
330 #define NVREG_TX_PAUSEFRAME_ENABLE_V3 0x09f00880
331 NvRegMIIStatus = 0x180,
332 #define NVREG_MIISTAT_ERROR 0x0001
333 #define NVREG_MIISTAT_LINKCHANGE 0x0008
334 #define NVREG_MIISTAT_MASK_RW 0x0007
335 #define NVREG_MIISTAT_MASK_ALL 0x000f
336 NvRegMIIMask = 0x184,
337 #define NVREG_MII_LINKCHANGE 0x0008
338
339 NvRegAdapterControl = 0x188,
340 #define NVREG_ADAPTCTL_START 0x02
341 #define NVREG_ADAPTCTL_LINKUP 0x04
342 #define NVREG_ADAPTCTL_PHYVALID 0x40000
343 #define NVREG_ADAPTCTL_RUNNING 0x100000
344 #define NVREG_ADAPTCTL_PHYSHIFT 24
345 NvRegMIISpeed = 0x18c,
346 #define NVREG_MIISPEED_BIT8 (1<<8)
347 #define NVREG_MIIDELAY 5
348 NvRegMIIControl = 0x190,
349 #define NVREG_MIICTL_INUSE 0x08000
350 #define NVREG_MIICTL_WRITE 0x00400
351 #define NVREG_MIICTL_ADDRSHIFT 5
352 NvRegMIIData = 0x194,
353 NvRegWakeUpFlags = 0x200,
354 #define NVREG_WAKEUPFLAGS_VAL 0x7770
355 #define NVREG_WAKEUPFLAGS_BUSYSHIFT 24
356 #define NVREG_WAKEUPFLAGS_ENABLESHIFT 16
357 #define NVREG_WAKEUPFLAGS_D3SHIFT 12
358 #define NVREG_WAKEUPFLAGS_D2SHIFT 8
359 #define NVREG_WAKEUPFLAGS_D1SHIFT 4
360 #define NVREG_WAKEUPFLAGS_D0SHIFT 0
361 #define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01
362 #define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02
363 #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04
364 #define NVREG_WAKEUPFLAGS_ENABLE 0x1111
365
366 NvRegPatternCRC = 0x204,
367 NvRegPatternMask = 0x208,
368 NvRegPowerCap = 0x268,
369 #define NVREG_POWERCAP_D3SUPP (1<<30)
370 #define NVREG_POWERCAP_D2SUPP (1<<26)
371 #define NVREG_POWERCAP_D1SUPP (1<<25)
372 NvRegPowerState = 0x26c,
373 #define NVREG_POWERSTATE_POWEREDUP 0x8000
374 #define NVREG_POWERSTATE_VALID 0x0100
375 #define NVREG_POWERSTATE_MASK 0x0003
376 #define NVREG_POWERSTATE_D0 0x0000
377 #define NVREG_POWERSTATE_D1 0x0001
378 #define NVREG_POWERSTATE_D2 0x0002
379 #define NVREG_POWERSTATE_D3 0x0003
380 NvRegTxCnt = 0x280,
381 NvRegTxZeroReXmt = 0x284,
382 NvRegTxOneReXmt = 0x288,
383 NvRegTxManyReXmt = 0x28c,
384 NvRegTxLateCol = 0x290,
385 NvRegTxUnderflow = 0x294,
386 NvRegTxLossCarrier = 0x298,
387 NvRegTxExcessDef = 0x29c,
388 NvRegTxRetryErr = 0x2a0,
389 NvRegRxFrameErr = 0x2a4,
390 NvRegRxExtraByte = 0x2a8,
391 NvRegRxLateCol = 0x2ac,
392 NvRegRxRunt = 0x2b0,
393 NvRegRxFrameTooLong = 0x2b4,
394 NvRegRxOverflow = 0x2b8,
395 NvRegRxFCSErr = 0x2bc,
396 NvRegRxFrameAlignErr = 0x2c0,
397 NvRegRxLenErr = 0x2c4,
398 NvRegRxUnicast = 0x2c8,
399 NvRegRxMulticast = 0x2cc,
400 NvRegRxBroadcast = 0x2d0,
401 NvRegTxDef = 0x2d4,
402 NvRegTxFrame = 0x2d8,
403 NvRegRxCnt = 0x2dc,
404 NvRegTxPause = 0x2e0,
405 NvRegRxPause = 0x2e4,
406 NvRegRxDropFrame = 0x2e8,
407 NvRegVlanControl = 0x300,
408 #define NVREG_VLANCONTROL_ENABLE 0x2000
409 NvRegMSIXMap0 = 0x3e0,
410 NvRegMSIXMap1 = 0x3e4,
411 NvRegMSIXIrqStatus = 0x3f0,
412
413 NvRegPowerState2 = 0x600,
414 #define NVREG_POWERSTATE2_POWERUP_MASK 0x0F11
415 #define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001
416 };
417
418 /* Big endian: should work, but is untested */
419 struct ring_desc {
420 __le32 buf;
421 __le32 flaglen;
422 };
423
424 struct ring_desc_ex {
425 __le32 bufhigh;
426 __le32 buflow;
427 __le32 txvlan;
428 __le32 flaglen;
429 };
430
431 union ring_type {
432 struct ring_desc* orig;
433 struct ring_desc_ex* ex;
434 };
435
436 #define FLAG_MASK_V1 0xffff0000
437 #define FLAG_MASK_V2 0xffffc000
438 #define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
439 #define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
440
441 #define NV_TX_LASTPACKET (1<<16)
442 #define NV_TX_RETRYERROR (1<<19)
443 #define NV_TX_FORCED_INTERRUPT (1<<24)
444 #define NV_TX_DEFERRED (1<<26)
445 #define NV_TX_CARRIERLOST (1<<27)
446 #define NV_TX_LATECOLLISION (1<<28)
447 #define NV_TX_UNDERFLOW (1<<29)
448 #define NV_TX_ERROR (1<<30)
449 #define NV_TX_VALID (1<<31)
450
451 #define NV_TX2_LASTPACKET (1<<29)
452 #define NV_TX2_RETRYERROR (1<<18)
453 #define NV_TX2_FORCED_INTERRUPT (1<<30)
454 #define NV_TX2_DEFERRED (1<<25)
455 #define NV_TX2_CARRIERLOST (1<<26)
456 #define NV_TX2_LATECOLLISION (1<<27)
457 #define NV_TX2_UNDERFLOW (1<<28)
458 /* error and valid are the same for both */
459 #define NV_TX2_ERROR (1<<30)
460 #define NV_TX2_VALID (1<<31)
461 #define NV_TX2_TSO (1<<28)
462 #define NV_TX2_TSO_SHIFT 14
463 #define NV_TX2_TSO_MAX_SHIFT 14
464 #define NV_TX2_TSO_MAX_SIZE (1<<NV_TX2_TSO_MAX_SHIFT)
465 #define NV_TX2_CHECKSUM_L3 (1<<27)
466 #define NV_TX2_CHECKSUM_L4 (1<<26)
467
468 #define NV_TX3_VLAN_TAG_PRESENT (1<<18)
469
470 #define NV_RX_DESCRIPTORVALID (1<<16)
471 #define NV_RX_MISSEDFRAME (1<<17)
472 #define NV_RX_SUBSTRACT1 (1<<18)
473 #define NV_RX_ERROR1 (1<<23)
474 #define NV_RX_ERROR2 (1<<24)
475 #define NV_RX_ERROR3 (1<<25)
476 #define NV_RX_ERROR4 (1<<26)
477 #define NV_RX_CRCERR (1<<27)
478 #define NV_RX_OVERFLOW (1<<28)
479 #define NV_RX_FRAMINGERR (1<<29)
480 #define NV_RX_ERROR (1<<30)
481 #define NV_RX_AVAIL (1<<31)
482
483 #define NV_RX2_CHECKSUMMASK (0x1C000000)
484 #define NV_RX2_CHECKSUM_IP (0x10000000)
485 #define NV_RX2_CHECKSUM_IP_TCP (0x14000000)
486 #define NV_RX2_CHECKSUM_IP_UDP (0x18000000)
487 #define NV_RX2_DESCRIPTORVALID (1<<29)
488 #define NV_RX2_SUBSTRACT1 (1<<25)
489 #define NV_RX2_ERROR1 (1<<18)
490 #define NV_RX2_ERROR2 (1<<19)
491 #define NV_RX2_ERROR3 (1<<20)
492 #define NV_RX2_ERROR4 (1<<21)
493 #define NV_RX2_CRCERR (1<<22)
494 #define NV_RX2_OVERFLOW (1<<23)
495 #define NV_RX2_FRAMINGERR (1<<24)
496 /* error and avail are the same for both */
497 #define NV_RX2_ERROR (1<<30)
498 #define NV_RX2_AVAIL (1<<31)
499
500 #define NV_RX3_VLAN_TAG_PRESENT (1<<16)
501 #define NV_RX3_VLAN_TAG_MASK (0x0000FFFF)
502
503 /* Miscelaneous hardware related defines: */
504 #define NV_PCI_REGSZ_VER1 0x270
505 #define NV_PCI_REGSZ_VER2 0x2d4
506 #define NV_PCI_REGSZ_VER3 0x604
507
508 /* various timeout delays: all in usec */
509 #define NV_TXRX_RESET_DELAY 4
510 #define NV_TXSTOP_DELAY1 10
511 #define NV_TXSTOP_DELAY1MAX 500000
512 #define NV_TXSTOP_DELAY2 100
513 #define NV_RXSTOP_DELAY1 10
514 #define NV_RXSTOP_DELAY1MAX 500000
515 #define NV_RXSTOP_DELAY2 100
516 #define NV_SETUP5_DELAY 5
517 #define NV_SETUP5_DELAYMAX 50000
518 #define NV_POWERUP_DELAY 5
519 #define NV_POWERUP_DELAYMAX 5000
520 #define NV_MIIBUSY_DELAY 50
521 #define NV_MIIPHY_DELAY 10
522 #define NV_MIIPHY_DELAYMAX 10000
523 #define NV_MAC_RESET_DELAY 64
524
525 #define NV_WAKEUPPATTERNS 5
526 #define NV_WAKEUPMASKENTRIES 4
527
528 /* General driver defaults */
529 #define NV_WATCHDOG_TIMEO (5*HZ)
530
531 #define RX_RING_DEFAULT 128
532 #define TX_RING_DEFAULT 256
533 #define RX_RING_MIN 128
534 #define TX_RING_MIN 64
535 #define RING_MAX_DESC_VER_1 1024
536 #define RING_MAX_DESC_VER_2_3 16384
537
538 /* rx/tx mac addr + type + vlan + align + slack*/
539 #define NV_RX_HEADERS (64)
540 /* even more slack. */
541 #define NV_RX_ALLOC_PAD (64)
542
543 /* maximum mtu size */
544 #define NV_PKTLIMIT_1 ETH_DATA_LEN /* hard limit not known */
545 #define NV_PKTLIMIT_2 9100 /* Actual limit according to NVidia: 9202 */
546
547 #define OOM_REFILL (1+HZ/20)
548 #define POLL_WAIT (1+HZ/100)
549 #define LINK_TIMEOUT (3*HZ)
550 #define STATS_INTERVAL (10*HZ)
551
552 /*
553 * desc_ver values:
554 * The nic supports three different descriptor types:
555 * - DESC_VER_1: Original
556 * - DESC_VER_2: support for jumbo frames.
557 * - DESC_VER_3: 64-bit format.
558 */
559 #define DESC_VER_1 1
560 #define DESC_VER_2 2
561 #define DESC_VER_3 3
562
563 /* PHY defines */
564 #define PHY_OUI_MARVELL 0x5043
565 #define PHY_OUI_CICADA 0x03f1
566 #define PHY_OUI_VITESSE 0x01c1
567 #define PHY_OUI_REALTEK 0x0732
568 #define PHYID1_OUI_MASK 0x03ff
569 #define PHYID1_OUI_SHFT 6
570 #define PHYID2_OUI_MASK 0xfc00
571 #define PHYID2_OUI_SHFT 10
572 #define PHYID2_MODEL_MASK 0x03f0
573 #define PHY_MODEL_MARVELL_E3016 0x220
574 #define PHY_MARVELL_E3016_INITMASK 0x0300
575 #define PHY_CICADA_INIT1 0x0f000
576 #define PHY_CICADA_INIT2 0x0e00
577 #define PHY_CICADA_INIT3 0x01000
578 #define PHY_CICADA_INIT4 0x0200
579 #define PHY_CICADA_INIT5 0x0004
580 #define PHY_CICADA_INIT6 0x02000
581 #define PHY_VITESSE_INIT_REG1 0x1f
582 #define PHY_VITESSE_INIT_REG2 0x10
583 #define PHY_VITESSE_INIT_REG3 0x11
584 #define PHY_VITESSE_INIT_REG4 0x12
585 #define PHY_VITESSE_INIT_MSK1 0xc
586 #define PHY_VITESSE_INIT_MSK2 0x0180
587 #define PHY_VITESSE_INIT1 0x52b5
588 #define PHY_VITESSE_INIT2 0xaf8a
589 #define PHY_VITESSE_INIT3 0x8
590 #define PHY_VITESSE_INIT4 0x8f8a
591 #define PHY_VITESSE_INIT5 0xaf86
592 #define PHY_VITESSE_INIT6 0x8f86
593 #define PHY_VITESSE_INIT7 0xaf82
594 #define PHY_VITESSE_INIT8 0x0100
595 #define PHY_VITESSE_INIT9 0x8f82
596 #define PHY_VITESSE_INIT10 0x0
597 #define PHY_REALTEK_INIT_REG1 0x1f
598 #define PHY_REALTEK_INIT_REG2 0x19
599 #define PHY_REALTEK_INIT_REG3 0x13
600 #define PHY_REALTEK_INIT1 0x0000
601 #define PHY_REALTEK_INIT2 0x8e00
602 #define PHY_REALTEK_INIT3 0x0001
603 #define PHY_REALTEK_INIT4 0xad17
604
605 #define PHY_GIGABIT 0x0100
606
607 #define PHY_TIMEOUT 0x1
608 #define PHY_ERROR 0x2
609
610 #define PHY_100 0x1
611 #define PHY_1000 0x2
612 #define PHY_HALF 0x100
613
614 #define NV_PAUSEFRAME_RX_CAPABLE 0x0001
615 #define NV_PAUSEFRAME_TX_CAPABLE 0x0002
616 #define NV_PAUSEFRAME_RX_ENABLE 0x0004
617 #define NV_PAUSEFRAME_TX_ENABLE 0x0008
618 #define NV_PAUSEFRAME_RX_REQ 0x0010
619 #define NV_PAUSEFRAME_TX_REQ 0x0020
620 #define NV_PAUSEFRAME_AUTONEG 0x0040
621
622 /* MSI/MSI-X defines */
623 #define NV_MSI_X_MAX_VECTORS 8
624 #define NV_MSI_X_VECTORS_MASK 0x000f
625 #define NV_MSI_CAPABLE 0x0010
626 #define NV_MSI_X_CAPABLE 0x0020
627 #define NV_MSI_ENABLED 0x0040
628 #define NV_MSI_X_ENABLED 0x0080
629
630 #define NV_MSI_X_VECTOR_ALL 0x0
631 #define NV_MSI_X_VECTOR_RX 0x0
632 #define NV_MSI_X_VECTOR_TX 0x1
633 #define NV_MSI_X_VECTOR_OTHER 0x2
634
635 #define NV_RESTART_TX 0x1
636 #define NV_RESTART_RX 0x2
637
638 /* statistics */
639 struct nv_ethtool_str {
640 char name[ETH_GSTRING_LEN];
641 };
642
643 static const struct nv_ethtool_str nv_estats_str[] = {
644 { "tx_bytes" },
645 { "tx_zero_rexmt" },
646 { "tx_one_rexmt" },
647 { "tx_many_rexmt" },
648 { "tx_late_collision" },
649 { "tx_fifo_errors" },
650 { "tx_carrier_errors" },
651 { "tx_excess_deferral" },
652 { "tx_retry_error" },
653 { "rx_frame_error" },
654 { "rx_extra_byte" },
655 { "rx_late_collision" },
656 { "rx_runt" },
657 { "rx_frame_too_long" },
658 { "rx_over_errors" },
659 { "rx_crc_errors" },
660 { "rx_frame_align_error" },
661 { "rx_length_error" },
662 { "rx_unicast" },
663 { "rx_multicast" },
664 { "rx_broadcast" },
665 { "rx_packets" },
666 { "rx_errors_total" },
667 { "tx_errors_total" },
668
669 /* version 2 stats */
670 { "tx_deferral" },
671 { "tx_packets" },
672 { "rx_bytes" },
673 { "tx_pause" },
674 { "rx_pause" },
675 { "rx_drop_frame" }
676 };
677
678 struct nv_ethtool_stats {
679 u64 tx_bytes;
680 u64 tx_zero_rexmt;
681 u64 tx_one_rexmt;
682 u64 tx_many_rexmt;
683 u64 tx_late_collision;
684 u64 tx_fifo_errors;
685 u64 tx_carrier_errors;
686 u64 tx_excess_deferral;
687 u64 tx_retry_error;
688 u64 rx_frame_error;
689 u64 rx_extra_byte;
690 u64 rx_late_collision;
691 u64 rx_runt;
692 u64 rx_frame_too_long;
693 u64 rx_over_errors;
694 u64 rx_crc_errors;
695 u64 rx_frame_align_error;
696 u64 rx_length_error;
697 u64 rx_unicast;
698 u64 rx_multicast;
699 u64 rx_broadcast;
700 u64 rx_packets;
701 u64 rx_errors_total;
702 u64 tx_errors_total;
703
704 /* version 2 stats */
705 u64 tx_deferral;
706 u64 tx_packets;
707 u64 rx_bytes;
708 u64 tx_pause;
709 u64 rx_pause;
710 u64 rx_drop_frame;
711 };
712
713 #define NV_DEV_STATISTICS_V2_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64))
714 #define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6)
715
716 /* diagnostics */
717 #define NV_TEST_COUNT_BASE 3
718 #define NV_TEST_COUNT_EXTENDED 4
719
720 static const struct nv_ethtool_str nv_etests_str[] = {
721 { "link (online/offline)" },
722 { "register (offline) " },
723 { "interrupt (offline) " },
724 { "loopback (offline) " }
725 };
726
727 struct register_test {
728 __u32 reg;
729 __u32 mask;
730 };
731
732 static const struct register_test nv_registers_test[] = {
733 { NvRegUnknownSetupReg6, 0x01 },
734 { NvRegMisc1, 0x03c },
735 { NvRegOffloadConfig, 0x03ff },
736 { NvRegMulticastAddrA, 0xffffffff },
737 { NvRegTxWatermark, 0x0ff },
738 { NvRegWakeUpFlags, 0x07777 },
739 { 0,0 }
740 };
741
742 struct nv_skb_map {
743 struct sk_buff *skb;
744 dma_addr_t dma;
745 unsigned int dma_len;
746 };
747
748 /*
749 * SMP locking:
750 * All hardware access under dev->priv->lock, except the performance
751 * critical parts:
752 * - rx is (pseudo-) lockless: it relies on the single-threading provided
753 * by the arch code for interrupts.
754 * - tx setup is lockless: it relies on netif_tx_lock. Actual submission
755 * needs dev->priv->lock :-(
756 * - set_multicast_list: preparation lockless, relies on netif_tx_lock.
757 */
758
759 /* in dev: base, irq */
760 struct fe_priv {
761 spinlock_t lock;
762
763 struct net_device *dev;
764 struct napi_struct napi;
765
766 /* General data:
767 * Locking: spin_lock(&np->lock); */
768 struct nv_ethtool_stats estats;
769 int in_shutdown;
770 u32 linkspeed;
771 int duplex;
772 int autoneg;
773 int fixed_mode;
774 int phyaddr;
775 int wolenabled;
776 unsigned int phy_oui;
777 unsigned int phy_model;
778 u16 gigabit;
779 int intr_test;
780 int recover_error;
781
782 /* General data: RO fields */
783 dma_addr_t ring_addr;
784 struct pci_dev *pci_dev;
785 u32 orig_mac[2];
786 u32 irqmask;
787 u32 desc_ver;
788 u32 txrxctl_bits;
789 u32 vlanctl_bits;
790 u32 driver_data;
791 u32 register_size;
792 int rx_csum;
793 u32 mac_in_use;
794
795 void __iomem *base;
796
797 /* rx specific fields.
798 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
799 */
800 union ring_type get_rx, put_rx, first_rx, last_rx;
801 struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
802 struct nv_skb_map *first_rx_ctx, *last_rx_ctx;
803 struct nv_skb_map *rx_skb;
804
805 union ring_type rx_ring;
806 unsigned int rx_buf_sz;
807 unsigned int pkt_limit;
808 struct timer_list oom_kick;
809 struct timer_list nic_poll;
810 struct timer_list stats_poll;
811 u32 nic_poll_irq;
812 int rx_ring_size;
813
814 /* media detection workaround.
815 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
816 */
817 int need_linktimer;
818 unsigned long link_timeout;
819 /*
820 * tx specific fields.
821 */
822 union ring_type get_tx, put_tx, first_tx, last_tx;
823 struct nv_skb_map *get_tx_ctx, *put_tx_ctx;
824 struct nv_skb_map *first_tx_ctx, *last_tx_ctx;
825 struct nv_skb_map *tx_skb;
826
827 union ring_type tx_ring;
828 u32 tx_flags;
829 int tx_ring_size;
830 int tx_stop;
831
832 /* vlan fields */
833 struct vlan_group *vlangrp;
834
835 /* msi/msi-x fields */
836 u32 msi_flags;
837 struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
838
839 /* flow control */
840 u32 pause_flags;
841 };
842
843 /*
844 * Maximum number of loops until we assume that a bit in the irq mask
845 * is stuck. Overridable with module param.
846 */
847 static int max_interrupt_work = 5;
848
849 /*
850 * Optimization can be either throuput mode or cpu mode
851 *
852 * Throughput Mode: Every tx and rx packet will generate an interrupt.
853 * CPU Mode: Interrupts are controlled by a timer.
854 */
855 enum {
856 NV_OPTIMIZATION_MODE_THROUGHPUT,
857 NV_OPTIMIZATION_MODE_CPU
858 };
859 static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
860
861 /*
862 * Poll interval for timer irq
863 *
864 * This interval determines how frequent an interrupt is generated.
865 * The is value is determined by [(time_in_micro_secs * 100) / (2^10)]
866 * Min = 0, and Max = 65535
867 */
868 static int poll_interval = -1;
869
870 /*
871 * MSI interrupts
872 */
873 enum {
874 NV_MSI_INT_DISABLED,
875 NV_MSI_INT_ENABLED
876 };
877 static int msi = NV_MSI_INT_ENABLED;
878
879 /*
880 * MSIX interrupts
881 */
882 enum {
883 NV_MSIX_INT_DISABLED,
884 NV_MSIX_INT_ENABLED
885 };
886 static int msix = NV_MSIX_INT_DISABLED;
887
888 /*
889 * DMA 64bit
890 */
891 enum {
892 NV_DMA_64BIT_DISABLED,
893 NV_DMA_64BIT_ENABLED
894 };
895 static int dma_64bit = NV_DMA_64BIT_ENABLED;
896
897 static inline struct fe_priv *get_nvpriv(struct net_device *dev)
898 {
899 return netdev_priv(dev);
900 }
901
902 static inline u8 __iomem *get_hwbase(struct net_device *dev)
903 {
904 return ((struct fe_priv *)netdev_priv(dev))->base;
905 }
906
907 static inline void pci_push(u8 __iomem *base)
908 {
909 /* force out pending posted writes */
910 readl(base);
911 }
912
913 static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
914 {
915 return le32_to_cpu(prd->flaglen)
916 & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
917 }
918
919 static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v)
920 {
921 return le32_to_cpu(prd->flaglen) & LEN_MASK_V2;
922 }
923
924 static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
925 int delay, int delaymax, const char *msg)
926 {
927 u8 __iomem *base = get_hwbase(dev);
928
929 pci_push(base);
930 do {
931 udelay(delay);
932 delaymax -= delay;
933 if (delaymax < 0) {
934 if (msg)
935 printk(msg);
936 return 1;
937 }
938 } while ((readl(base + offset) & mask) != target);
939 return 0;
940 }
941
942 #define NV_SETUP_RX_RING 0x01
943 #define NV_SETUP_TX_RING 0x02
944
945 static inline u32 dma_low(dma_addr_t addr)
946 {
947 return addr;
948 }
949
950 static inline u32 dma_high(dma_addr_t addr)
951 {
952 return addr>>31>>1; /* 0 if 32bit, shift down by 32 if 64bit */
953 }
954
955 static void setup_hw_rings(struct net_device *dev, int rxtx_flags)
956 {
957 struct fe_priv *np = get_nvpriv(dev);
958 u8 __iomem *base = get_hwbase(dev);
959
960 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
961 if (rxtx_flags & NV_SETUP_RX_RING) {
962 writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
963 }
964 if (rxtx_flags & NV_SETUP_TX_RING) {
965 writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
966 }
967 } else {
968 if (rxtx_flags & NV_SETUP_RX_RING) {
969 writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
970 writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh);
971 }
972 if (rxtx_flags & NV_SETUP_TX_RING) {
973 writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
974 writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh);
975 }
976 }
977 }
978
979 static void free_rings(struct net_device *dev)
980 {
981 struct fe_priv *np = get_nvpriv(dev);
982
983 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
984 if (np->rx_ring.orig)
985 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
986 np->rx_ring.orig, np->ring_addr);
987 } else {
988 if (np->rx_ring.ex)
989 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
990 np->rx_ring.ex, np->ring_addr);
991 }
992 if (np->rx_skb)
993 kfree(np->rx_skb);
994 if (np->tx_skb)
995 kfree(np->tx_skb);
996 }
997
998 static int using_multi_irqs(struct net_device *dev)
999 {
1000 struct fe_priv *np = get_nvpriv(dev);
1001
1002 if (!(np->msi_flags & NV_MSI_X_ENABLED) ||
1003 ((np->msi_flags & NV_MSI_X_ENABLED) &&
1004 ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1)))
1005 return 0;
1006 else
1007 return 1;
1008 }
1009
1010 static void nv_enable_irq(struct net_device *dev)
1011 {
1012 struct fe_priv *np = get_nvpriv(dev);
1013
1014 if (!using_multi_irqs(dev)) {
1015 if (np->msi_flags & NV_MSI_X_ENABLED)
1016 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1017 else
1018 enable_irq(np->pci_dev->irq);
1019 } else {
1020 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1021 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1022 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1023 }
1024 }
1025
1026 static void nv_disable_irq(struct net_device *dev)
1027 {
1028 struct fe_priv *np = get_nvpriv(dev);
1029
1030 if (!using_multi_irqs(dev)) {
1031 if (np->msi_flags & NV_MSI_X_ENABLED)
1032 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1033 else
1034 disable_irq(np->pci_dev->irq);
1035 } else {
1036 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1037 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1038 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1039 }
1040 }
1041
1042 /* In MSIX mode, a write to irqmask behaves as XOR */
1043 static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask)
1044 {
1045 u8 __iomem *base = get_hwbase(dev);
1046
1047 writel(mask, base + NvRegIrqMask);
1048 }
1049
1050 static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
1051 {
1052 struct fe_priv *np = get_nvpriv(dev);
1053 u8 __iomem *base = get_hwbase(dev);
1054
1055 if (np->msi_flags & NV_MSI_X_ENABLED) {
1056 writel(mask, base + NvRegIrqMask);
1057 } else {
1058 if (np->msi_flags & NV_MSI_ENABLED)
1059 writel(0, base + NvRegMSIIrqMask);
1060 writel(0, base + NvRegIrqMask);
1061 }
1062 }
1063
1064 #define MII_READ (-1)
1065 /* mii_rw: read/write a register on the PHY.
1066 *
1067 * Caller must guarantee serialization
1068 */
1069 static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
1070 {
1071 u8 __iomem *base = get_hwbase(dev);
1072 u32 reg;
1073 int retval;
1074
1075 writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus);
1076
1077 reg = readl(base + NvRegMIIControl);
1078 if (reg & NVREG_MIICTL_INUSE) {
1079 writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
1080 udelay(NV_MIIBUSY_DELAY);
1081 }
1082
1083 reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
1084 if (value != MII_READ) {
1085 writel(value, base + NvRegMIIData);
1086 reg |= NVREG_MIICTL_WRITE;
1087 }
1088 writel(reg, base + NvRegMIIControl);
1089
1090 if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0,
1091 NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) {
1092 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n",
1093 dev->name, miireg, addr);
1094 retval = -1;
1095 } else if (value != MII_READ) {
1096 /* it was a write operation - fewer failures are detectable */
1097 dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n",
1098 dev->name, value, miireg, addr);
1099 retval = 0;
1100 } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
1101 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n",
1102 dev->name, miireg, addr);
1103 retval = -1;
1104 } else {
1105 retval = readl(base + NvRegMIIData);
1106 dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n",
1107 dev->name, miireg, addr, retval);
1108 }
1109
1110 return retval;
1111 }
1112
1113 static int phy_reset(struct net_device *dev, u32 bmcr_setup)
1114 {
1115 struct fe_priv *np = netdev_priv(dev);
1116 u32 miicontrol;
1117 unsigned int tries = 0;
1118
1119 miicontrol = BMCR_RESET | bmcr_setup;
1120 if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) {
1121 return -1;
1122 }
1123
1124 /* wait for 500ms */
1125 msleep(500);
1126
1127 /* must wait till reset is deasserted */
1128 while (miicontrol & BMCR_RESET) {
1129 msleep(10);
1130 miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1131 /* FIXME: 100 tries seem excessive */
1132 if (tries++ > 100)
1133 return -1;
1134 }
1135 return 0;
1136 }
1137
1138 static int phy_init(struct net_device *dev)
1139 {
1140 struct fe_priv *np = get_nvpriv(dev);
1141 u8 __iomem *base = get_hwbase(dev);
1142 u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg;
1143
1144 /* phy errata for E3016 phy */
1145 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
1146 reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1147 reg &= ~PHY_MARVELL_E3016_INITMASK;
1148 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) {
1149 printk(KERN_INFO "%s: phy write to errata reg failed.\n", pci_name(np->pci_dev));
1150 return PHY_ERROR;
1151 }
1152 }
1153 if (np->phy_oui == PHY_OUI_REALTEK) {
1154 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1155 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1156 return PHY_ERROR;
1157 }
1158 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1159 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1160 return PHY_ERROR;
1161 }
1162 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1163 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1164 return PHY_ERROR;
1165 }
1166 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1167 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1168 return PHY_ERROR;
1169 }
1170 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1171 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1172 return PHY_ERROR;
1173 }
1174 }
1175
1176 /* set advertise register */
1177 reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
1178 reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|ADVERTISE_PAUSE_ASYM|ADVERTISE_PAUSE_CAP);
1179 if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
1180 printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev));
1181 return PHY_ERROR;
1182 }
1183
1184 /* get phy interface type */
1185 phyinterface = readl(base + NvRegPhyInterface);
1186
1187 /* see if gigabit phy */
1188 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
1189 if (mii_status & PHY_GIGABIT) {
1190 np->gigabit = PHY_GIGABIT;
1191 mii_control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
1192 mii_control_1000 &= ~ADVERTISE_1000HALF;
1193 if (phyinterface & PHY_RGMII)
1194 mii_control_1000 |= ADVERTISE_1000FULL;
1195 else
1196 mii_control_1000 &= ~ADVERTISE_1000FULL;
1197
1198 if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) {
1199 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1200 return PHY_ERROR;
1201 }
1202 }
1203 else
1204 np->gigabit = 0;
1205
1206 mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1207 mii_control |= BMCR_ANENABLE;
1208
1209 /* reset the phy
1210 * (certain phys need bmcr to be setup with reset)
1211 */
1212 if (phy_reset(dev, mii_control)) {
1213 printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev));
1214 return PHY_ERROR;
1215 }
1216
1217 /* phy vendor specific configuration */
1218 if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) {
1219 phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
1220 phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2);
1221 phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4);
1222 if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) {
1223 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1224 return PHY_ERROR;
1225 }
1226 phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1227 phy_reserved |= PHY_CICADA_INIT5;
1228 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) {
1229 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1230 return PHY_ERROR;
1231 }
1232 }
1233 if (np->phy_oui == PHY_OUI_CICADA) {
1234 phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
1235 phy_reserved |= PHY_CICADA_INIT6;
1236 if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) {
1237 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1238 return PHY_ERROR;
1239 }
1240 }
1241 if (np->phy_oui == PHY_OUI_VITESSE) {
1242 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1)) {
1243 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1244 return PHY_ERROR;
1245 }
1246 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2)) {
1247 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1248 return PHY_ERROR;
1249 }
1250 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1251 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1252 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1253 return PHY_ERROR;
1254 }
1255 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1256 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1257 phy_reserved |= PHY_VITESSE_INIT3;
1258 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1259 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1260 return PHY_ERROR;
1261 }
1262 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4)) {
1263 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1264 return PHY_ERROR;
1265 }
1266 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5)) {
1267 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1268 return PHY_ERROR;
1269 }
1270 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1271 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1272 phy_reserved |= PHY_VITESSE_INIT3;
1273 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
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_REG3, MII_READ);
1278 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1279 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1280 return PHY_ERROR;
1281 }
1282 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6)) {
1283 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1284 return PHY_ERROR;
1285 }
1286 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7)) {
1287 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1288 return PHY_ERROR;
1289 }
1290 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1291 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1292 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1293 return PHY_ERROR;
1294 }
1295 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1296 phy_reserved &= ~PHY_VITESSE_INIT_MSK2;
1297 phy_reserved |= PHY_VITESSE_INIT8;
1298 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1299 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1300 return PHY_ERROR;
1301 }
1302 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9)) {
1303 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1304 return PHY_ERROR;
1305 }
1306 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10)) {
1307 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1308 return PHY_ERROR;
1309 }
1310 }
1311 if (np->phy_oui == PHY_OUI_REALTEK) {
1312 /* reset could have cleared these out, set them back */
1313 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1314 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1315 return PHY_ERROR;
1316 }
1317 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1318 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1319 return PHY_ERROR;
1320 }
1321 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1322 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1323 return PHY_ERROR;
1324 }
1325 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1326 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1327 return PHY_ERROR;
1328 }
1329 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1330 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1331 return PHY_ERROR;
1332 }
1333 }
1334
1335 /* some phys clear out pause advertisment on reset, set it back */
1336 mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
1337
1338 /* restart auto negotiation */
1339 mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1340 mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
1341 if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
1342 return PHY_ERROR;
1343 }
1344
1345 return 0;
1346 }
1347
1348 static void nv_start_rx(struct net_device *dev)
1349 {
1350 struct fe_priv *np = netdev_priv(dev);
1351 u8 __iomem *base = get_hwbase(dev);
1352 u32 rx_ctrl = readl(base + NvRegReceiverControl);
1353
1354 dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
1355 /* Already running? Stop it. */
1356 if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
1357 rx_ctrl &= ~NVREG_RCVCTL_START;
1358 writel(rx_ctrl, base + NvRegReceiverControl);
1359 pci_push(base);
1360 }
1361 writel(np->linkspeed, base + NvRegLinkSpeed);
1362 pci_push(base);
1363 rx_ctrl |= NVREG_RCVCTL_START;
1364 if (np->mac_in_use)
1365 rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
1366 writel(rx_ctrl, base + NvRegReceiverControl);
1367 dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
1368 dev->name, np->duplex, np->linkspeed);
1369 pci_push(base);
1370 }
1371
1372 static void nv_stop_rx(struct net_device *dev)
1373 {
1374 struct fe_priv *np = netdev_priv(dev);
1375 u8 __iomem *base = get_hwbase(dev);
1376 u32 rx_ctrl = readl(base + NvRegReceiverControl);
1377
1378 dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
1379 if (!np->mac_in_use)
1380 rx_ctrl &= ~NVREG_RCVCTL_START;
1381 else
1382 rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
1383 writel(rx_ctrl, base + NvRegReceiverControl);
1384 reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
1385 NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
1386 KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
1387
1388 udelay(NV_RXSTOP_DELAY2);
1389 if (!np->mac_in_use)
1390 writel(0, base + NvRegLinkSpeed);
1391 }
1392
1393 static void nv_start_tx(struct net_device *dev)
1394 {
1395 struct fe_priv *np = netdev_priv(dev);
1396 u8 __iomem *base = get_hwbase(dev);
1397 u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1398
1399 dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name);
1400 tx_ctrl |= NVREG_XMITCTL_START;
1401 if (np->mac_in_use)
1402 tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
1403 writel(tx_ctrl, base + NvRegTransmitterControl);
1404 pci_push(base);
1405 }
1406
1407 static void nv_stop_tx(struct net_device *dev)
1408 {
1409 struct fe_priv *np = netdev_priv(dev);
1410 u8 __iomem *base = get_hwbase(dev);
1411 u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1412
1413 dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
1414 if (!np->mac_in_use)
1415 tx_ctrl &= ~NVREG_XMITCTL_START;
1416 else
1417 tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
1418 writel(tx_ctrl, base + NvRegTransmitterControl);
1419 reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
1420 NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
1421 KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
1422
1423 udelay(NV_TXSTOP_DELAY2);
1424 if (!np->mac_in_use)
1425 writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
1426 base + NvRegTransmitPoll);
1427 }
1428
1429 static void nv_txrx_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_txrx_reset\n", dev->name);
1435 writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1436 pci_push(base);
1437 udelay(NV_TXRX_RESET_DELAY);
1438 writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1439 pci_push(base);
1440 }
1441
1442 static void nv_mac_reset(struct net_device *dev)
1443 {
1444 struct fe_priv *np = netdev_priv(dev);
1445 u8 __iomem *base = get_hwbase(dev);
1446 u32 temp1, temp2, temp3;
1447
1448 dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name);
1449
1450 writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1451 pci_push(base);
1452
1453 /* save registers since they will be cleared on reset */
1454 temp1 = readl(base + NvRegMacAddrA);
1455 temp2 = readl(base + NvRegMacAddrB);
1456 temp3 = readl(base + NvRegTransmitPoll);
1457
1458 writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset);
1459 pci_push(base);
1460 udelay(NV_MAC_RESET_DELAY);
1461 writel(0, base + NvRegMacReset);
1462 pci_push(base);
1463 udelay(NV_MAC_RESET_DELAY);
1464
1465 /* restore saved registers */
1466 writel(temp1, base + NvRegMacAddrA);
1467 writel(temp2, base + NvRegMacAddrB);
1468 writel(temp3, base + NvRegTransmitPoll);
1469
1470 writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1471 pci_push(base);
1472 }
1473
1474 static void nv_get_hw_stats(struct net_device *dev)
1475 {
1476 struct fe_priv *np = netdev_priv(dev);
1477 u8 __iomem *base = get_hwbase(dev);
1478
1479 np->estats.tx_bytes += readl(base + NvRegTxCnt);
1480 np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt);
1481 np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt);
1482 np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt);
1483 np->estats.tx_late_collision += readl(base + NvRegTxLateCol);
1484 np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow);
1485 np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier);
1486 np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef);
1487 np->estats.tx_retry_error += readl(base + NvRegTxRetryErr);
1488 np->estats.rx_frame_error += readl(base + NvRegRxFrameErr);
1489 np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte);
1490 np->estats.rx_late_collision += readl(base + NvRegRxLateCol);
1491 np->estats.rx_runt += readl(base + NvRegRxRunt);
1492 np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong);
1493 np->estats.rx_over_errors += readl(base + NvRegRxOverflow);
1494 np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr);
1495 np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr);
1496 np->estats.rx_length_error += readl(base + NvRegRxLenErr);
1497 np->estats.rx_unicast += readl(base + NvRegRxUnicast);
1498 np->estats.rx_multicast += readl(base + NvRegRxMulticast);
1499 np->estats.rx_broadcast += readl(base + NvRegRxBroadcast);
1500 np->estats.rx_packets =
1501 np->estats.rx_unicast +
1502 np->estats.rx_multicast +
1503 np->estats.rx_broadcast;
1504 np->estats.rx_errors_total =
1505 np->estats.rx_crc_errors +
1506 np->estats.rx_over_errors +
1507 np->estats.rx_frame_error +
1508 (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) +
1509 np->estats.rx_late_collision +
1510 np->estats.rx_runt +
1511 np->estats.rx_frame_too_long;
1512 np->estats.tx_errors_total =
1513 np->estats.tx_late_collision +
1514 np->estats.tx_fifo_errors +
1515 np->estats.tx_carrier_errors +
1516 np->estats.tx_excess_deferral +
1517 np->estats.tx_retry_error;
1518
1519 if (np->driver_data & DEV_HAS_STATISTICS_V2) {
1520 np->estats.tx_deferral += readl(base + NvRegTxDef);
1521 np->estats.tx_packets += readl(base + NvRegTxFrame);
1522 np->estats.rx_bytes += readl(base + NvRegRxCnt);
1523 np->estats.tx_pause += readl(base + NvRegTxPause);
1524 np->estats.rx_pause += readl(base + NvRegRxPause);
1525 np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
1526 }
1527 }
1528
1529 /*
1530 * nv_get_stats: dev->get_stats function
1531 * Get latest stats value from the nic.
1532 * Called with read_lock(&dev_base_lock) held for read -
1533 * only synchronized against unregister_netdevice.
1534 */
1535 static struct net_device_stats *nv_get_stats(struct net_device *dev)
1536 {
1537 struct fe_priv *np = netdev_priv(dev);
1538
1539 /* If the nic supports hw counters then retrieve latest values */
1540 if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2)) {
1541 nv_get_hw_stats(dev);
1542
1543 /* copy to net_device stats */
1544 dev->stats.tx_bytes = np->estats.tx_bytes;
1545 dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors;
1546 dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors;
1547 dev->stats.rx_crc_errors = np->estats.rx_crc_errors;
1548 dev->stats.rx_over_errors = np->estats.rx_over_errors;
1549 dev->stats.rx_errors = np->estats.rx_errors_total;
1550 dev->stats.tx_errors = np->estats.tx_errors_total;
1551 }
1552
1553 return &dev->stats;
1554 }
1555
1556 /*
1557 * nv_alloc_rx: fill rx ring entries.
1558 * Return 1 if the allocations for the skbs failed and the
1559 * rx engine is without Available descriptors
1560 */
1561 static int nv_alloc_rx(struct net_device *dev)
1562 {
1563 struct fe_priv *np = netdev_priv(dev);
1564 struct ring_desc* less_rx;
1565
1566 less_rx = np->get_rx.orig;
1567 if (less_rx-- == np->first_rx.orig)
1568 less_rx = np->last_rx.orig;
1569
1570 while (np->put_rx.orig != less_rx) {
1571 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1572 if (skb) {
1573 np->put_rx_ctx->skb = skb;
1574 np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1575 skb->data,
1576 skb_tailroom(skb),
1577 PCI_DMA_FROMDEVICE);
1578 np->put_rx_ctx->dma_len = skb_tailroom(skb);
1579 np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
1580 wmb();
1581 np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
1582 if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
1583 np->put_rx.orig = np->first_rx.orig;
1584 if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1585 np->put_rx_ctx = np->first_rx_ctx;
1586 } else {
1587 return 1;
1588 }
1589 }
1590 return 0;
1591 }
1592
1593 static int nv_alloc_rx_optimized(struct net_device *dev)
1594 {
1595 struct fe_priv *np = netdev_priv(dev);
1596 struct ring_desc_ex* less_rx;
1597
1598 less_rx = np->get_rx.ex;
1599 if (less_rx-- == np->first_rx.ex)
1600 less_rx = np->last_rx.ex;
1601
1602 while (np->put_rx.ex != less_rx) {
1603 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1604 if (skb) {
1605 np->put_rx_ctx->skb = skb;
1606 np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1607 skb->data,
1608 skb_tailroom(skb),
1609 PCI_DMA_FROMDEVICE);
1610 np->put_rx_ctx->dma_len = skb_tailroom(skb);
1611 np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
1612 np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
1613 wmb();
1614 np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
1615 if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
1616 np->put_rx.ex = np->first_rx.ex;
1617 if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1618 np->put_rx_ctx = np->first_rx_ctx;
1619 } else {
1620 return 1;
1621 }
1622 }
1623 return 0;
1624 }
1625
1626 /* If rx bufs are exhausted called after 50ms to attempt to refresh */
1627 #ifdef CONFIG_FORCEDETH_NAPI
1628 static void nv_do_rx_refill(unsigned long data)
1629 {
1630 struct net_device *dev = (struct net_device *) data;
1631 struct fe_priv *np = netdev_priv(dev);
1632
1633 /* Just reschedule NAPI rx processing */
1634 netif_rx_schedule(dev, &np->napi);
1635 }
1636 #else
1637 static void nv_do_rx_refill(unsigned long data)
1638 {
1639 struct net_device *dev = (struct net_device *) data;
1640 struct fe_priv *np = netdev_priv(dev);
1641 int retcode;
1642
1643 if (!using_multi_irqs(dev)) {
1644 if (np->msi_flags & NV_MSI_X_ENABLED)
1645 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1646 else
1647 disable_irq(np->pci_dev->irq);
1648 } else {
1649 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1650 }
1651 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1652 retcode = nv_alloc_rx(dev);
1653 else
1654 retcode = nv_alloc_rx_optimized(dev);
1655 if (retcode) {
1656 spin_lock_irq(&np->lock);
1657 if (!np->in_shutdown)
1658 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
1659 spin_unlock_irq(&np->lock);
1660 }
1661 if (!using_multi_irqs(dev)) {
1662 if (np->msi_flags & NV_MSI_X_ENABLED)
1663 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1664 else
1665 enable_irq(np->pci_dev->irq);
1666 } else {
1667 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1668 }
1669 }
1670 #endif
1671
1672 static void nv_init_rx(struct net_device *dev)
1673 {
1674 struct fe_priv *np = netdev_priv(dev);
1675 int i;
1676 np->get_rx = np->put_rx = np->first_rx = np->rx_ring;
1677 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1678 np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
1679 else
1680 np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
1681 np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb;
1682 np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
1683
1684 for (i = 0; i < np->rx_ring_size; i++) {
1685 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1686 np->rx_ring.orig[i].flaglen = 0;
1687 np->rx_ring.orig[i].buf = 0;
1688 } else {
1689 np->rx_ring.ex[i].flaglen = 0;
1690 np->rx_ring.ex[i].txvlan = 0;
1691 np->rx_ring.ex[i].bufhigh = 0;
1692 np->rx_ring.ex[i].buflow = 0;
1693 }
1694 np->rx_skb[i].skb = NULL;
1695 np->rx_skb[i].dma = 0;
1696 }
1697 }
1698
1699 static void nv_init_tx(struct net_device *dev)
1700 {
1701 struct fe_priv *np = netdev_priv(dev);
1702 int i;
1703 np->get_tx = np->put_tx = np->first_tx = np->tx_ring;
1704 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1705 np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1];
1706 else
1707 np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1];
1708 np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb;
1709 np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1];
1710
1711 for (i = 0; i < np->tx_ring_size; i++) {
1712 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1713 np->tx_ring.orig[i].flaglen = 0;
1714 np->tx_ring.orig[i].buf = 0;
1715 } else {
1716 np->tx_ring.ex[i].flaglen = 0;
1717 np->tx_ring.ex[i].txvlan = 0;
1718 np->tx_ring.ex[i].bufhigh = 0;
1719 np->tx_ring.ex[i].buflow = 0;
1720 }
1721 np->tx_skb[i].skb = NULL;
1722 np->tx_skb[i].dma = 0;
1723 }
1724 }
1725
1726 static int nv_init_ring(struct net_device *dev)
1727 {
1728 struct fe_priv *np = netdev_priv(dev);
1729
1730 nv_init_tx(dev);
1731 nv_init_rx(dev);
1732 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
1733 return nv_alloc_rx(dev);
1734 else
1735 return nv_alloc_rx_optimized(dev);
1736 }
1737
1738 static int nv_release_txskb(struct net_device *dev, struct nv_skb_map* tx_skb)
1739 {
1740 struct fe_priv *np = netdev_priv(dev);
1741
1742 if (tx_skb->dma) {
1743 pci_unmap_page(np->pci_dev, tx_skb->dma,
1744 tx_skb->dma_len,
1745 PCI_DMA_TODEVICE);
1746 tx_skb->dma = 0;
1747 }
1748 if (tx_skb->skb) {
1749 dev_kfree_skb_any(tx_skb->skb);
1750 tx_skb->skb = NULL;
1751 return 1;
1752 } else {
1753 return 0;
1754 }
1755 }
1756
1757 static void nv_drain_tx(struct net_device *dev)
1758 {
1759 struct fe_priv *np = netdev_priv(dev);
1760 unsigned int i;
1761
1762 for (i = 0; i < np->tx_ring_size; i++) {
1763 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1764 np->tx_ring.orig[i].flaglen = 0;
1765 np->tx_ring.orig[i].buf = 0;
1766 } else {
1767 np->tx_ring.ex[i].flaglen = 0;
1768 np->tx_ring.ex[i].txvlan = 0;
1769 np->tx_ring.ex[i].bufhigh = 0;
1770 np->tx_ring.ex[i].buflow = 0;
1771 }
1772 if (nv_release_txskb(dev, &np->tx_skb[i]))
1773 dev->stats.tx_dropped++;
1774 }
1775 }
1776
1777 static void nv_drain_rx(struct net_device *dev)
1778 {
1779 struct fe_priv *np = netdev_priv(dev);
1780 int i;
1781
1782 for (i = 0; i < np->rx_ring_size; i++) {
1783 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
1784 np->rx_ring.orig[i].flaglen = 0;
1785 np->rx_ring.orig[i].buf = 0;
1786 } else {
1787 np->rx_ring.ex[i].flaglen = 0;
1788 np->rx_ring.ex[i].txvlan = 0;
1789 np->rx_ring.ex[i].bufhigh = 0;
1790 np->rx_ring.ex[i].buflow = 0;
1791 }
1792 wmb();
1793 if (np->rx_skb[i].skb) {
1794 pci_unmap_single(np->pci_dev, np->rx_skb[i].dma,
1795 (skb_end_pointer(np->rx_skb[i].skb) -
1796 np->rx_skb[i].skb->data),
1797 PCI_DMA_FROMDEVICE);
1798 dev_kfree_skb(np->rx_skb[i].skb);
1799 np->rx_skb[i].skb = NULL;
1800 }
1801 }
1802 }
1803
1804 static void drain_ring(struct net_device *dev)
1805 {
1806 nv_drain_tx(dev);
1807 nv_drain_rx(dev);
1808 }
1809
1810 static inline u32 nv_get_empty_tx_slots(struct fe_priv *np)
1811 {
1812 return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size));
1813 }
1814
1815 /*
1816 * nv_start_xmit: dev->hard_start_xmit function
1817 * Called with netif_tx_lock held.
1818 */
1819 static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
1820 {
1821 struct fe_priv *np = netdev_priv(dev);
1822 u32 tx_flags = 0;
1823 u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
1824 unsigned int fragments = skb_shinfo(skb)->nr_frags;
1825 unsigned int i;
1826 u32 offset = 0;
1827 u32 bcnt;
1828 u32 size = skb->len-skb->data_len;
1829 u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1830 u32 empty_slots;
1831 struct ring_desc* put_tx;
1832 struct ring_desc* start_tx;
1833 struct ring_desc* prev_tx;
1834 struct nv_skb_map* prev_tx_ctx;
1835
1836 /* add fragments to entries count */
1837 for (i = 0; i < fragments; i++) {
1838 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
1839 ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1840 }
1841
1842 empty_slots = nv_get_empty_tx_slots(np);
1843 if (unlikely(empty_slots <= entries)) {
1844 spin_lock_irq(&np->lock);
1845 netif_stop_queue(dev);
1846 np->tx_stop = 1;
1847 spin_unlock_irq(&np->lock);
1848 return NETDEV_TX_BUSY;
1849 }
1850
1851 start_tx = put_tx = np->put_tx.orig;
1852
1853 /* setup the header buffer */
1854 do {
1855 prev_tx = put_tx;
1856 prev_tx_ctx = np->put_tx_ctx;
1857 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1858 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
1859 PCI_DMA_TODEVICE);
1860 np->put_tx_ctx->dma_len = bcnt;
1861 put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
1862 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1863
1864 tx_flags = np->tx_flags;
1865 offset += bcnt;
1866 size -= bcnt;
1867 if (unlikely(put_tx++ == np->last_tx.orig))
1868 put_tx = np->first_tx.orig;
1869 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1870 np->put_tx_ctx = np->first_tx_ctx;
1871 } while (size);
1872
1873 /* setup the fragments */
1874 for (i = 0; i < fragments; i++) {
1875 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1876 u32 size = frag->size;
1877 offset = 0;
1878
1879 do {
1880 prev_tx = put_tx;
1881 prev_tx_ctx = np->put_tx_ctx;
1882 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1883 np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
1884 PCI_DMA_TODEVICE);
1885 np->put_tx_ctx->dma_len = bcnt;
1886 put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
1887 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1888
1889 offset += bcnt;
1890 size -= bcnt;
1891 if (unlikely(put_tx++ == np->last_tx.orig))
1892 put_tx = np->first_tx.orig;
1893 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1894 np->put_tx_ctx = np->first_tx_ctx;
1895 } while (size);
1896 }
1897
1898 /* set last fragment flag */
1899 prev_tx->flaglen |= cpu_to_le32(tx_flags_extra);
1900
1901 /* save skb in this slot's context area */
1902 prev_tx_ctx->skb = skb;
1903
1904 if (skb_is_gso(skb))
1905 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
1906 else
1907 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
1908 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
1909
1910 spin_lock_irq(&np->lock);
1911
1912 /* set tx flags */
1913 start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
1914 np->put_tx.orig = put_tx;
1915
1916 spin_unlock_irq(&np->lock);
1917
1918 dprintk(KERN_DEBUG "%s: nv_start_xmit: entries %d queued for transmission. tx_flags_extra: %x\n",
1919 dev->name, entries, tx_flags_extra);
1920 {
1921 int j;
1922 for (j=0; j<64; j++) {
1923 if ((j%16) == 0)
1924 dprintk("\n%03x:", j);
1925 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
1926 }
1927 dprintk("\n");
1928 }
1929
1930 dev->trans_start = jiffies;
1931 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
1932 return NETDEV_TX_OK;
1933 }
1934
1935 static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev)
1936 {
1937 struct fe_priv *np = netdev_priv(dev);
1938 u32 tx_flags = 0;
1939 u32 tx_flags_extra;
1940 unsigned int fragments = skb_shinfo(skb)->nr_frags;
1941 unsigned int i;
1942 u32 offset = 0;
1943 u32 bcnt;
1944 u32 size = skb->len-skb->data_len;
1945 u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1946 u32 empty_slots;
1947 struct ring_desc_ex* put_tx;
1948 struct ring_desc_ex* start_tx;
1949 struct ring_desc_ex* prev_tx;
1950 struct nv_skb_map* prev_tx_ctx;
1951
1952 /* add fragments to entries count */
1953 for (i = 0; i < fragments; i++) {
1954 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
1955 ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
1956 }
1957
1958 empty_slots = nv_get_empty_tx_slots(np);
1959 if (unlikely(empty_slots <= entries)) {
1960 spin_lock_irq(&np->lock);
1961 netif_stop_queue(dev);
1962 np->tx_stop = 1;
1963 spin_unlock_irq(&np->lock);
1964 return NETDEV_TX_BUSY;
1965 }
1966
1967 start_tx = put_tx = np->put_tx.ex;
1968
1969 /* setup the header buffer */
1970 do {
1971 prev_tx = put_tx;
1972 prev_tx_ctx = np->put_tx_ctx;
1973 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
1974 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
1975 PCI_DMA_TODEVICE);
1976 np->put_tx_ctx->dma_len = bcnt;
1977 put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
1978 put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
1979 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
1980
1981 tx_flags = NV_TX2_VALID;
1982 offset += bcnt;
1983 size -= bcnt;
1984 if (unlikely(put_tx++ == np->last_tx.ex))
1985 put_tx = np->first_tx.ex;
1986 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
1987 np->put_tx_ctx = np->first_tx_ctx;
1988 } while (size);
1989
1990 /* setup the fragments */
1991 for (i = 0; i < fragments; i++) {
1992 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1993 u32 size = frag->size;
1994 offset = 0;
1995
1996 do {
1997 prev_tx = put_tx;
1998 prev_tx_ctx = np->put_tx_ctx;
1999 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
2000 np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
2001 PCI_DMA_TODEVICE);
2002 np->put_tx_ctx->dma_len = bcnt;
2003 put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
2004 put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
2005 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
2006
2007 offset += bcnt;
2008 size -= bcnt;
2009 if (unlikely(put_tx++ == np->last_tx.ex))
2010 put_tx = np->first_tx.ex;
2011 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
2012 np->put_tx_ctx = np->first_tx_ctx;
2013 } while (size);
2014 }
2015
2016 /* set last fragment flag */
2017 prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET);
2018
2019 /* save skb in this slot's context area */
2020 prev_tx_ctx->skb = skb;
2021
2022 if (skb_is_gso(skb))
2023 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
2024 else
2025 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
2026 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
2027
2028 /* vlan tag */
2029 if (likely(!np->vlangrp)) {
2030 start_tx->txvlan = 0;
2031 } else {
2032 if (vlan_tx_tag_present(skb))
2033 start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT | vlan_tx_tag_get(skb));
2034 else
2035 start_tx->txvlan = 0;
2036 }
2037
2038 spin_lock_irq(&np->lock);
2039
2040 /* set tx flags */
2041 start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
2042 np->put_tx.ex = put_tx;
2043
2044 spin_unlock_irq(&np->lock);
2045
2046 dprintk(KERN_DEBUG "%s: nv_start_xmit_optimized: entries %d queued for transmission. tx_flags_extra: %x\n",
2047 dev->name, entries, tx_flags_extra);
2048 {
2049 int j;
2050 for (j=0; j<64; j++) {
2051 if ((j%16) == 0)
2052 dprintk("\n%03x:", j);
2053 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2054 }
2055 dprintk("\n");
2056 }
2057
2058 dev->trans_start = jiffies;
2059 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2060 return NETDEV_TX_OK;
2061 }
2062
2063 /*
2064 * nv_tx_done: check for completed packets, release the skbs.
2065 *
2066 * Caller must own np->lock.
2067 */
2068 static void nv_tx_done(struct net_device *dev)
2069 {
2070 struct fe_priv *np = netdev_priv(dev);
2071 u32 flags;
2072 struct ring_desc* orig_get_tx = np->get_tx.orig;
2073
2074 while ((np->get_tx.orig != np->put_tx.orig) &&
2075 !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID)) {
2076
2077 dprintk(KERN_DEBUG "%s: nv_tx_done: flags 0x%x.\n",
2078 dev->name, flags);
2079
2080 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2081 np->get_tx_ctx->dma_len,
2082 PCI_DMA_TODEVICE);
2083 np->get_tx_ctx->dma = 0;
2084
2085 if (np->desc_ver == DESC_VER_1) {
2086 if (flags & NV_TX_LASTPACKET) {
2087 if (flags & NV_TX_ERROR) {
2088 if (flags & NV_TX_UNDERFLOW)
2089 dev->stats.tx_fifo_errors++;
2090 if (flags & NV_TX_CARRIERLOST)
2091 dev->stats.tx_carrier_errors++;
2092 dev->stats.tx_errors++;
2093 } else {
2094 dev->stats.tx_packets++;
2095 dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2096 }
2097 dev_kfree_skb_any(np->get_tx_ctx->skb);
2098 np->get_tx_ctx->skb = NULL;
2099 }
2100 } else {
2101 if (flags & NV_TX2_LASTPACKET) {
2102 if (flags & NV_TX2_ERROR) {
2103 if (flags & NV_TX2_UNDERFLOW)
2104 dev->stats.tx_fifo_errors++;
2105 if (flags & NV_TX2_CARRIERLOST)
2106 dev->stats.tx_carrier_errors++;
2107 dev->stats.tx_errors++;
2108 } else {
2109 dev->stats.tx_packets++;
2110 dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2111 }
2112 dev_kfree_skb_any(np->get_tx_ctx->skb);
2113 np->get_tx_ctx->skb = NULL;
2114 }
2115 }
2116 if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
2117 np->get_tx.orig = np->first_tx.orig;
2118 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2119 np->get_tx_ctx = np->first_tx_ctx;
2120 }
2121 if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) {
2122 np->tx_stop = 0;
2123 netif_wake_queue(dev);
2124 }
2125 }
2126
2127 static void nv_tx_done_optimized(struct net_device *dev, int limit)
2128 {
2129 struct fe_priv *np = netdev_priv(dev);
2130 u32 flags;
2131 struct ring_desc_ex* orig_get_tx = np->get_tx.ex;
2132
2133 while ((np->get_tx.ex != np->put_tx.ex) &&
2134 !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX_VALID) &&
2135 (limit-- > 0)) {
2136
2137 dprintk(KERN_DEBUG "%s: nv_tx_done_optimized: flags 0x%x.\n",
2138 dev->name, flags);
2139
2140 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2141 np->get_tx_ctx->dma_len,
2142 PCI_DMA_TODEVICE);
2143 np->get_tx_ctx->dma = 0;
2144
2145 if (flags & NV_TX2_LASTPACKET) {
2146 if (!(flags & NV_TX2_ERROR))
2147 dev->stats.tx_packets++;
2148 dev_kfree_skb_any(np->get_tx_ctx->skb);
2149 np->get_tx_ctx->skb = NULL;
2150 }
2151 if (unlikely(np->get_tx.ex++ == np->last_tx.ex))
2152 np->get_tx.ex = np->first_tx.ex;
2153 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2154 np->get_tx_ctx = np->first_tx_ctx;
2155 }
2156 if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) {
2157 np->tx_stop = 0;
2158 netif_wake_queue(dev);
2159 }
2160 }
2161
2162 /*
2163 * nv_tx_timeout: dev->tx_timeout function
2164 * Called with netif_tx_lock held.
2165 */
2166 static void nv_tx_timeout(struct net_device *dev)
2167 {
2168 struct fe_priv *np = netdev_priv(dev);
2169 u8 __iomem *base = get_hwbase(dev);
2170 u32 status;
2171
2172 if (np->msi_flags & NV_MSI_X_ENABLED)
2173 status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
2174 else
2175 status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
2176
2177 printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, status);
2178
2179 {
2180 int i;
2181
2182 printk(KERN_INFO "%s: Ring at %lx\n",
2183 dev->name, (unsigned long)np->ring_addr);
2184 printk(KERN_INFO "%s: Dumping tx registers\n", dev->name);
2185 for (i=0;i<=np->register_size;i+= 32) {
2186 printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
2187 i,
2188 readl(base + i + 0), readl(base + i + 4),
2189 readl(base + i + 8), readl(base + i + 12),
2190 readl(base + i + 16), readl(base + i + 20),
2191 readl(base + i + 24), readl(base + i + 28));
2192 }
2193 printk(KERN_INFO "%s: Dumping tx ring\n", dev->name);
2194 for (i=0;i<np->tx_ring_size;i+= 4) {
2195 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
2196 printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n",
2197 i,
2198 le32_to_cpu(np->tx_ring.orig[i].buf),
2199 le32_to_cpu(np->tx_ring.orig[i].flaglen),
2200 le32_to_cpu(np->tx_ring.orig[i+1].buf),
2201 le32_to_cpu(np->tx_ring.orig[i+1].flaglen),
2202 le32_to_cpu(np->tx_ring.orig[i+2].buf),
2203 le32_to_cpu(np->tx_ring.orig[i+2].flaglen),
2204 le32_to_cpu(np->tx_ring.orig[i+3].buf),
2205 le32_to_cpu(np->tx_ring.orig[i+3].flaglen));
2206 } else {
2207 printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n",
2208 i,
2209 le32_to_cpu(np->tx_ring.ex[i].bufhigh),
2210 le32_to_cpu(np->tx_ring.ex[i].buflow),
2211 le32_to_cpu(np->tx_ring.ex[i].flaglen),
2212 le32_to_cpu(np->tx_ring.ex[i+1].bufhigh),
2213 le32_to_cpu(np->tx_ring.ex[i+1].buflow),
2214 le32_to_cpu(np->tx_ring.ex[i+1].flaglen),
2215 le32_to_cpu(np->tx_ring.ex[i+2].bufhigh),
2216 le32_to_cpu(np->tx_ring.ex[i+2].buflow),
2217 le32_to_cpu(np->tx_ring.ex[i+2].flaglen),
2218 le32_to_cpu(np->tx_ring.ex[i+3].bufhigh),
2219 le32_to_cpu(np->tx_ring.ex[i+3].buflow),
2220 le32_to_cpu(np->tx_ring.ex[i+3].flaglen));
2221 }
2222 }
2223 }
2224
2225 spin_lock_irq(&np->lock);
2226
2227 /* 1) stop tx engine */
2228 nv_stop_tx(dev);
2229
2230 /* 2) check that the packets were not sent already: */
2231 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
2232 nv_tx_done(dev);
2233 else
2234 nv_tx_done_optimized(dev, np->tx_ring_size);
2235
2236 /* 3) if there are dead entries: clear everything */
2237 if (np->get_tx_ctx != np->put_tx_ctx) {
2238 printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name);
2239 nv_drain_tx(dev);
2240 nv_init_tx(dev);
2241 setup_hw_rings(dev, NV_SETUP_TX_RING);
2242 }
2243
2244 netif_wake_queue(dev);
2245
2246 /* 4) restart tx engine */
2247 nv_start_tx(dev);
2248 spin_unlock_irq(&np->lock);
2249 }
2250
2251 /*
2252 * Called when the nic notices a mismatch between the actual data len on the
2253 * wire and the len indicated in the 802 header
2254 */
2255 static int nv_getlen(struct net_device *dev, void *packet, int datalen)
2256 {
2257 int hdrlen; /* length of the 802 header */
2258 int protolen; /* length as stored in the proto field */
2259
2260 /* 1) calculate len according to header */
2261 if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) {
2262 protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto );
2263 hdrlen = VLAN_HLEN;
2264 } else {
2265 protolen = ntohs( ((struct ethhdr *)packet)->h_proto);
2266 hdrlen = ETH_HLEN;
2267 }
2268 dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n",
2269 dev->name, datalen, protolen, hdrlen);
2270 if (protolen > ETH_DATA_LEN)
2271 return datalen; /* Value in proto field not a len, no checks possible */
2272
2273 protolen += hdrlen;
2274 /* consistency checks: */
2275 if (datalen > ETH_ZLEN) {
2276 if (datalen >= protolen) {
2277 /* more data on wire than in 802 header, trim of
2278 * additional data.
2279 */
2280 dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2281 dev->name, protolen);
2282 return protolen;
2283 } else {
2284 /* less data on wire than mentioned in header.
2285 * Discard the packet.
2286 */
2287 dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n",
2288 dev->name);
2289 return -1;
2290 }
2291 } else {
2292 /* short packet. Accept only if 802 values are also short */
2293 if (protolen > ETH_ZLEN) {
2294 dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n",
2295 dev->name);
2296 return -1;
2297 }
2298 dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2299 dev->name, datalen);
2300 return datalen;
2301 }
2302 }
2303
2304 static int nv_rx_process(struct net_device *dev, int limit)
2305 {
2306 struct fe_priv *np = netdev_priv(dev);
2307 u32 flags;
2308 int rx_work = 0;
2309 struct sk_buff *skb;
2310 int len;
2311
2312 while((np->get_rx.orig != np->put_rx.orig) &&
2313 !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) &&
2314 (rx_work < limit)) {
2315
2316 dprintk(KERN_DEBUG "%s: nv_rx_process: flags 0x%x.\n",
2317 dev->name, flags);
2318
2319 /*
2320 * the packet is for us - immediately tear down the pci mapping.
2321 * TODO: check if a prefetch of the first cacheline improves
2322 * the performance.
2323 */
2324 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2325 np->get_rx_ctx->dma_len,
2326 PCI_DMA_FROMDEVICE);
2327 skb = np->get_rx_ctx->skb;
2328 np->get_rx_ctx->skb = NULL;
2329
2330 {
2331 int j;
2332 dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2333 for (j=0; j<64; j++) {
2334 if ((j%16) == 0)
2335 dprintk("\n%03x:", j);
2336 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2337 }
2338 dprintk("\n");
2339 }
2340 /* look at what we actually got: */
2341 if (np->desc_ver == DESC_VER_1) {
2342 if (likely(flags & NV_RX_DESCRIPTORVALID)) {
2343 len = flags & LEN_MASK_V1;
2344 if (unlikely(flags & NV_RX_ERROR)) {
2345 if (flags & NV_RX_ERROR4) {
2346 len = nv_getlen(dev, skb->data, len);
2347 if (len < 0) {
2348 dev->stats.rx_errors++;
2349 dev_kfree_skb(skb);
2350 goto next_pkt;
2351 }
2352 }
2353 /* framing errors are soft errors */
2354 else if (flags & NV_RX_FRAMINGERR) {
2355 if (flags & NV_RX_SUBSTRACT1) {
2356 len--;
2357 }
2358 }
2359 /* the rest are hard errors */
2360 else {
2361 if (flags & NV_RX_MISSEDFRAME)
2362 dev->stats.rx_missed_errors++;
2363 if (flags & NV_RX_CRCERR)
2364 dev->stats.rx_crc_errors++;
2365 if (flags & NV_RX_OVERFLOW)
2366 dev->stats.rx_over_errors++;
2367 dev->stats.rx_errors++;
2368 dev_kfree_skb(skb);
2369 goto next_pkt;
2370 }
2371 }
2372 } else {
2373 dev_kfree_skb(skb);
2374 goto next_pkt;
2375 }
2376 } else {
2377 if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2378 len = flags & LEN_MASK_V2;
2379 if (unlikely(flags & NV_RX2_ERROR)) {
2380 if (flags & NV_RX2_ERROR4) {
2381 len = nv_getlen(dev, skb->data, len);
2382 if (len < 0) {
2383 dev->stats.rx_errors++;
2384 dev_kfree_skb(skb);
2385 goto next_pkt;
2386 }
2387 }
2388 /* framing errors are soft errors */
2389 else if (flags & NV_RX2_FRAMINGERR) {
2390 if (flags & NV_RX2_SUBSTRACT1) {
2391 len--;
2392 }
2393 }
2394 /* the rest are hard errors */
2395 else {
2396 if (flags & NV_RX2_CRCERR)
2397 dev->stats.rx_crc_errors++;
2398 if (flags & NV_RX2_OVERFLOW)
2399 dev->stats.rx_over_errors++;
2400 dev->stats.rx_errors++;
2401 dev_kfree_skb(skb);
2402 goto next_pkt;
2403 }
2404 }
2405 if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
2406 ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
2407 skb->ip_summed = CHECKSUM_UNNECESSARY;
2408 } else {
2409 dev_kfree_skb(skb);
2410 goto next_pkt;
2411 }
2412 }
2413 /* got a valid packet - forward it to the network core */
2414 skb_put(skb, len);
2415 skb->protocol = eth_type_trans(skb, dev);
2416 dprintk(KERN_DEBUG "%s: nv_rx_process: %d bytes, proto %d accepted.\n",
2417 dev->name, len, skb->protocol);
2418 #ifdef CONFIG_FORCEDETH_NAPI
2419 netif_receive_skb(skb);
2420 #else
2421 netif_rx(skb);
2422 #endif
2423 dev->last_rx = jiffies;
2424 dev->stats.rx_packets++;
2425 dev->stats.rx_bytes += len;
2426 next_pkt:
2427 if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
2428 np->get_rx.orig = np->first_rx.orig;
2429 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2430 np->get_rx_ctx = np->first_rx_ctx;
2431
2432 rx_work++;
2433 }
2434
2435 return rx_work;
2436 }
2437
2438 static int nv_rx_process_optimized(struct net_device *dev, int limit)
2439 {
2440 struct fe_priv *np = netdev_priv(dev);
2441 u32 flags;
2442 u32 vlanflags = 0;
2443 int rx_work = 0;
2444 struct sk_buff *skb;
2445 int len;
2446
2447 while((np->get_rx.ex != np->put_rx.ex) &&
2448 !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
2449 (rx_work < limit)) {
2450
2451 dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: flags 0x%x.\n",
2452 dev->name, flags);
2453
2454 /*
2455 * the packet is for us - immediately tear down the pci mapping.
2456 * TODO: check if a prefetch of the first cacheline improves
2457 * the performance.
2458 */
2459 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2460 np->get_rx_ctx->dma_len,
2461 PCI_DMA_FROMDEVICE);
2462 skb = np->get_rx_ctx->skb;
2463 np->get_rx_ctx->skb = NULL;
2464
2465 {
2466 int j;
2467 dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2468 for (j=0; j<64; j++) {
2469 if ((j%16) == 0)
2470 dprintk("\n%03x:", j);
2471 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2472 }
2473 dprintk("\n");
2474 }
2475 /* look at what we actually got: */
2476 if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2477 len = flags & LEN_MASK_V2;
2478 if (unlikely(flags & NV_RX2_ERROR)) {
2479 if (flags & NV_RX2_ERROR4) {
2480 len = nv_getlen(dev, skb->data, len);
2481 if (len < 0) {
2482 dev_kfree_skb(skb);
2483 goto next_pkt;
2484 }
2485 }
2486 /* framing errors are soft errors */
2487 else if (flags & NV_RX2_FRAMINGERR) {
2488 if (flags & NV_RX2_SUBSTRACT1) {
2489 len--;
2490 }
2491 }
2492 /* the rest are hard errors */
2493 else {
2494 dev_kfree_skb(skb);
2495 goto next_pkt;
2496 }
2497 }
2498
2499 if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
2500 ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
2501 skb->ip_summed = CHECKSUM_UNNECESSARY;
2502
2503 /* got a valid packet - forward it to the network core */
2504 skb_put(skb, len);
2505 skb->protocol = eth_type_trans(skb, dev);
2506 prefetch(skb->data);
2507
2508 dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: %d bytes, proto %d accepted.\n",
2509 dev->name, len, skb->protocol);
2510
2511 if (likely(!np->vlangrp)) {
2512 #ifdef CONFIG_FORCEDETH_NAPI
2513 netif_receive_skb(skb);
2514 #else
2515 netif_rx(skb);
2516 #endif
2517 } else {
2518 vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
2519 if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
2520 #ifdef CONFIG_FORCEDETH_NAPI
2521 vlan_hwaccel_receive_skb(skb, np->vlangrp,
2522 vlanflags & NV_RX3_VLAN_TAG_MASK);
2523 #else
2524 vlan_hwaccel_rx(skb, np->vlangrp,
2525 vlanflags & NV_RX3_VLAN_TAG_MASK);
2526 #endif
2527 } else {
2528 #ifdef CONFIG_FORCEDETH_NAPI
2529 netif_receive_skb(skb);
2530 #else
2531 netif_rx(skb);
2532 #endif
2533 }
2534 }
2535
2536 dev->last_rx = jiffies;
2537 dev->stats.rx_packets++;
2538 dev->stats.rx_bytes += len;
2539 } else {
2540 dev_kfree_skb(skb);
2541 }
2542 next_pkt:
2543 if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
2544 np->get_rx.ex = np->first_rx.ex;
2545 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2546 np->get_rx_ctx = np->first_rx_ctx;
2547
2548 rx_work++;
2549 }
2550
2551 return rx_work;
2552 }
2553
2554 static void set_bufsize(struct net_device *dev)
2555 {
2556 struct fe_priv *np = netdev_priv(dev);
2557
2558 if (dev->mtu <= ETH_DATA_LEN)
2559 np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS;
2560 else
2561 np->rx_buf_sz = dev->mtu + NV_RX_HEADERS;
2562 }
2563
2564 /*
2565 * nv_change_mtu: dev->change_mtu function
2566 * Called with dev_base_lock held for read.
2567 */
2568 static int nv_change_mtu(struct net_device *dev, int new_mtu)
2569 {
2570 struct fe_priv *np = netdev_priv(dev);
2571 int old_mtu;
2572
2573 if (new_mtu < 64 || new_mtu > np->pkt_limit)
2574 return -EINVAL;
2575
2576 old_mtu = dev->mtu;
2577 dev->mtu = new_mtu;
2578
2579 /* return early if the buffer sizes will not change */
2580 if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
2581 return 0;
2582 if (old_mtu == new_mtu)
2583 return 0;
2584
2585 /* synchronized against open : rtnl_lock() held by caller */
2586 if (netif_running(dev)) {
2587 u8 __iomem *base = get_hwbase(dev);
2588 /*
2589 * It seems that the nic preloads valid ring entries into an
2590 * internal buffer. The procedure for flushing everything is
2591 * guessed, there is probably a simpler approach.
2592 * Changing the MTU is a rare event, it shouldn't matter.
2593 */
2594 nv_disable_irq(dev);
2595 netif_tx_lock_bh(dev);
2596 spin_lock(&np->lock);
2597 /* stop engines */
2598 nv_stop_rx(dev);
2599 nv_stop_tx(dev);
2600 nv_txrx_reset(dev);
2601 /* drain rx queue */
2602 nv_drain_rx(dev);
2603 nv_drain_tx(dev);
2604 /* reinit driver view of the rx queue */
2605 set_bufsize(dev);
2606 if (nv_init_ring(dev)) {
2607 if (!np->in_shutdown)
2608 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
2609 }
2610 /* reinit nic view of the rx queue */
2611 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
2612 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
2613 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
2614 base + NvRegRingSizes);
2615 pci_push(base);
2616 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2617 pci_push(base);
2618
2619 /* restart rx engine */
2620 nv_start_rx(dev);
2621 nv_start_tx(dev);
2622 spin_unlock(&np->lock);
2623 netif_tx_unlock_bh(dev);
2624 nv_enable_irq(dev);
2625 }
2626 return 0;
2627 }
2628
2629 static void nv_copy_mac_to_hw(struct net_device *dev)
2630 {
2631 u8 __iomem *base = get_hwbase(dev);
2632 u32 mac[2];
2633
2634 mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
2635 (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
2636 mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
2637
2638 writel(mac[0], base + NvRegMacAddrA);
2639 writel(mac[1], base + NvRegMacAddrB);
2640 }
2641
2642 /*
2643 * nv_set_mac_address: dev->set_mac_address function
2644 * Called with rtnl_lock() held.
2645 */
2646 static int nv_set_mac_address(struct net_device *dev, void *addr)
2647 {
2648 struct fe_priv *np = netdev_priv(dev);
2649 struct sockaddr *macaddr = (struct sockaddr*)addr;
2650
2651 if (!is_valid_ether_addr(macaddr->sa_data))
2652 return -EADDRNOTAVAIL;
2653
2654 /* synchronized against open : rtnl_lock() held by caller */
2655 memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
2656
2657 if (netif_running(dev)) {
2658 netif_tx_lock_bh(dev);
2659 spin_lock_irq(&np->lock);
2660
2661 /* stop rx engine */
2662 nv_stop_rx(dev);
2663
2664 /* set mac address */
2665 nv_copy_mac_to_hw(dev);
2666
2667 /* restart rx engine */
2668 nv_start_rx(dev);
2669 spin_unlock_irq(&np->lock);
2670 netif_tx_unlock_bh(dev);
2671 } else {
2672 nv_copy_mac_to_hw(dev);
2673 }
2674 return 0;
2675 }
2676
2677 /*
2678 * nv_set_multicast: dev->set_multicast function
2679 * Called with netif_tx_lock held.
2680 */
2681 static void nv_set_multicast(struct net_device *dev)
2682 {
2683 struct fe_priv *np = netdev_priv(dev);
2684 u8 __iomem *base = get_hwbase(dev);
2685 u32 addr[2];
2686 u32 mask[2];
2687 u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX;
2688
2689 memset(addr, 0, sizeof(addr));
2690 memset(mask, 0, sizeof(mask));
2691
2692 if (dev->flags & IFF_PROMISC) {
2693 pff |= NVREG_PFF_PROMISC;
2694 } else {
2695 pff |= NVREG_PFF_MYADDR;
2696
2697 if (dev->flags & IFF_ALLMULTI || dev->mc_list) {
2698 u32 alwaysOff[2];
2699 u32 alwaysOn[2];
2700
2701 alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff;
2702 if (dev->flags & IFF_ALLMULTI) {
2703 alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
2704 } else {
2705 struct dev_mc_list *walk;
2706
2707 walk = dev->mc_list;
2708 while (walk != NULL) {
2709 u32 a, b;
2710 a = le32_to_cpu(*(__le32 *) walk->dmi_addr);
2711 b = le16_to_cpu(*(__le16 *) (&walk->dmi_addr[4]));
2712 alwaysOn[0] &= a;
2713 alwaysOff[0] &= ~a;
2714 alwaysOn[1] &= b;
2715 alwaysOff[1] &= ~b;
2716 walk = walk->next;
2717 }
2718 }
2719 addr[0] = alwaysOn[0];
2720 addr[1] = alwaysOn[1];
2721 mask[0] = alwaysOn[0] | alwaysOff[0];
2722 mask[1] = alwaysOn[1] | alwaysOff[1];
2723 } else {
2724 mask[0] = NVREG_MCASTMASKA_NONE;
2725 mask[1] = NVREG_MCASTMASKB_NONE;
2726 }
2727 }
2728 addr[0] |= NVREG_MCASTADDRA_FORCE;
2729 pff |= NVREG_PFF_ALWAYS;
2730 spin_lock_irq(&np->lock);
2731 nv_stop_rx(dev);
2732 writel(addr[0], base + NvRegMulticastAddrA);
2733 writel(addr[1], base + NvRegMulticastAddrB);
2734 writel(mask[0], base + NvRegMulticastMaskA);
2735 writel(mask[1], base + NvRegMulticastMaskB);
2736 writel(pff, base + NvRegPacketFilterFlags);
2737 dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n",
2738 dev->name);
2739 nv_start_rx(dev);
2740 spin_unlock_irq(&np->lock);
2741 }
2742
2743 static void nv_update_pause(struct net_device *dev, u32 pause_flags)
2744 {
2745 struct fe_priv *np = netdev_priv(dev);
2746 u8 __iomem *base = get_hwbase(dev);
2747
2748 np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
2749
2750 if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
2751 u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
2752 if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) {
2753 writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
2754 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2755 } else {
2756 writel(pff, base + NvRegPacketFilterFlags);
2757 }
2758 }
2759 if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
2760 u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
2761 if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
2762 u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1;
2763 if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2)
2764 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2;
2765 if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)
2766 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3;
2767 writel(pause_enable, base + NvRegTxPauseFrame);
2768 writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
2769 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2770 } else {
2771 writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
2772 writel(regmisc, base + NvRegMisc1);
2773 }
2774 }
2775 }
2776
2777 /**
2778 * nv_update_linkspeed: Setup the MAC according to the link partner
2779 * @dev: Network device to be configured
2780 *
2781 * The function queries the PHY and checks if there is a link partner.
2782 * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is
2783 * set to 10 MBit HD.
2784 *
2785 * The function returns 0 if there is no link partner and 1 if there is
2786 * a good link partner.
2787 */
2788 static int nv_update_linkspeed(struct net_device *dev)
2789 {
2790 struct fe_priv *np = netdev_priv(dev);
2791 u8 __iomem *base = get_hwbase(dev);
2792 int adv = 0;
2793 int lpa = 0;
2794 int adv_lpa, adv_pause, lpa_pause;
2795 int newls = np->linkspeed;
2796 int newdup = np->duplex;
2797 int mii_status;
2798 int retval = 0;
2799 u32 control_1000, status_1000, phyreg, pause_flags, txreg;
2800 u32 txrxFlags = 0;
2801 u32 phy_exp;
2802
2803 /* BMSR_LSTATUS is latched, read it twice:
2804 * we want the current value.
2805 */
2806 mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
2807 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
2808
2809 if (!(mii_status & BMSR_LSTATUS)) {
2810 dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n",
2811 dev->name);
2812 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2813 newdup = 0;
2814 retval = 0;
2815 goto set_speed;
2816 }
2817
2818 if (np->autoneg == 0) {
2819 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n",
2820 dev->name, np->fixed_mode);
2821 if (np->fixed_mode & LPA_100FULL) {
2822 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2823 newdup = 1;
2824 } else if (np->fixed_mode & LPA_100HALF) {
2825 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2826 newdup = 0;
2827 } else if (np->fixed_mode & LPA_10FULL) {
2828 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2829 newdup = 1;
2830 } else {
2831 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2832 newdup = 0;
2833 }
2834 retval = 1;
2835 goto set_speed;
2836 }
2837 /* check auto negotiation is complete */
2838 if (!(mii_status & BMSR_ANEGCOMPLETE)) {
2839 /* still in autonegotiation - configure nic for 10 MBit HD and wait. */
2840 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2841 newdup = 0;
2842 retval = 0;
2843 dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name);
2844 goto set_speed;
2845 }
2846
2847 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
2848 lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
2849 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
2850 dev->name, adv, lpa);
2851
2852 retval = 1;
2853 if (np->gigabit == PHY_GIGABIT) {
2854 control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
2855 status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ);
2856
2857 if ((control_1000 & ADVERTISE_1000FULL) &&
2858 (status_1000 & LPA_1000FULL)) {
2859 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n",
2860 dev->name);
2861 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
2862 newdup = 1;
2863 goto set_speed;
2864 }
2865 }
2866
2867 /* FIXME: handle parallel detection properly */
2868 adv_lpa = lpa & adv;
2869 if (adv_lpa & LPA_100FULL) {
2870 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2871 newdup = 1;
2872 } else if (adv_lpa & LPA_100HALF) {
2873 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
2874 newdup = 0;
2875 } else if (adv_lpa & LPA_10FULL) {
2876 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2877 newdup = 1;
2878 } else if (adv_lpa & LPA_10HALF) {
2879 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2880 newdup = 0;
2881 } else {
2882 dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, adv_lpa);
2883 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
2884 newdup = 0;
2885 }
2886
2887 set_speed:
2888 if (np->duplex == newdup && np->linkspeed == newls)
2889 return retval;
2890
2891 dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n",
2892 dev->name, np->linkspeed, np->duplex, newls, newdup);
2893
2894 np->duplex = newdup;
2895 np->linkspeed = newls;
2896
2897 /* The transmitter and receiver must be restarted for safe update */
2898 if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) {
2899 txrxFlags |= NV_RESTART_TX;
2900 nv_stop_tx(dev);
2901 }
2902 if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
2903 txrxFlags |= NV_RESTART_RX;
2904 nv_stop_rx(dev);
2905 }
2906
2907 if (np->gigabit == PHY_GIGABIT) {
2908 phyreg = readl(base + NvRegRandomSeed);
2909 phyreg &= ~(0x3FF00);
2910 if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
2911 phyreg |= NVREG_RNDSEED_FORCE3;
2912 else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
2913 phyreg |= NVREG_RNDSEED_FORCE2;
2914 else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
2915 phyreg |= NVREG_RNDSEED_FORCE;
2916 writel(phyreg, base + NvRegRandomSeed);
2917 }
2918
2919 phyreg = readl(base + NvRegPhyInterface);
2920 phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
2921 if (np->duplex == 0)
2922 phyreg |= PHY_HALF;
2923 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
2924 phyreg |= PHY_100;
2925 else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
2926 phyreg |= PHY_1000;
2927 writel(phyreg, base + NvRegPhyInterface);
2928
2929 phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */
2930 if (phyreg & PHY_RGMII) {
2931 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) {
2932 txreg = NVREG_TX_DEFERRAL_RGMII_1000;
2933 } else {
2934 if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) {
2935 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10)
2936 txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10;
2937 else
2938 txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100;
2939 } else {
2940 txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
2941 }
2942 }
2943 } else {
2944 if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX))
2945 txreg = NVREG_TX_DEFERRAL_MII_STRETCH;
2946 else
2947 txreg = NVREG_TX_DEFERRAL_DEFAULT;
2948 }
2949 writel(txreg, base + NvRegTxDeferral);
2950
2951 if (np->desc_ver == DESC_VER_1) {
2952 txreg = NVREG_TX_WM_DESC1_DEFAULT;
2953 } else {
2954 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
2955 txreg = NVREG_TX_WM_DESC2_3_1000;
2956 else
2957 txreg = NVREG_TX_WM_DESC2_3_DEFAULT;
2958 }
2959 writel(txreg, base + NvRegTxWatermark);
2960
2961 writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
2962 base + NvRegMisc1);
2963 pci_push(base);
2964 writel(np->linkspeed, base + NvRegLinkSpeed);
2965 pci_push(base);
2966
2967 pause_flags = 0;
2968 /* setup pause frame */
2969 if (np->duplex != 0) {
2970 if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
2971 adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM);
2972 lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM);
2973
2974 switch (adv_pause) {
2975 case ADVERTISE_PAUSE_CAP:
2976 if (lpa_pause & LPA_PAUSE_CAP) {
2977 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2978 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
2979 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2980 }
2981 break;
2982 case ADVERTISE_PAUSE_ASYM:
2983 if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM))
2984 {
2985 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2986 }
2987 break;
2988 case ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM:
2989 if (lpa_pause & LPA_PAUSE_CAP)
2990 {
2991 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2992 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
2993 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
2994 }
2995 if (lpa_pause == LPA_PAUSE_ASYM)
2996 {
2997 pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
2998 }
2999 break;
3000 }
3001 } else {
3002 pause_flags = np->pause_flags;
3003 }
3004 }
3005 nv_update_pause(dev, pause_flags);
3006
3007 if (txrxFlags & NV_RESTART_TX)
3008 nv_start_tx(dev);
3009 if (txrxFlags & NV_RESTART_RX)
3010 nv_start_rx(dev);
3011
3012 return retval;
3013 }
3014
3015 static void nv_linkchange(struct net_device *dev)
3016 {
3017 if (nv_update_linkspeed(dev)) {
3018 if (!netif_carrier_ok(dev)) {
3019 netif_carrier_on(dev);
3020 printk(KERN_INFO "%s: link up.\n", dev->name);
3021 nv_start_rx(dev);
3022 }
3023 } else {
3024 if (netif_carrier_ok(dev)) {
3025 netif_carrier_off(dev);
3026 printk(KERN_INFO "%s: link down.\n", dev->name);
3027 nv_stop_rx(dev);
3028 }
3029 }
3030 }
3031
3032 static void nv_link_irq(struct net_device *dev)
3033 {
3034 u8 __iomem *base = get_hwbase(dev);
3035 u32 miistat;
3036
3037 miistat = readl(base + NvRegMIIStatus);
3038 writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus);
3039 dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat);
3040
3041 if (miistat & (NVREG_MIISTAT_LINKCHANGE))
3042 nv_linkchange(dev);
3043 dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name);
3044 }
3045
3046 static irqreturn_t nv_nic_irq(int foo, void *data)
3047 {
3048 struct net_device *dev = (struct net_device *) data;
3049 struct fe_priv *np = netdev_priv(dev);
3050 u8 __iomem *base = get_hwbase(dev);
3051 u32 events;
3052 int i;
3053
3054 dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
3055
3056 for (i=0; ; i++) {
3057 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3058 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3059 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3060 } else {
3061 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3062 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3063 }
3064 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3065 if (!(events & np->irqmask))
3066 break;
3067
3068 spin_lock(&np->lock);
3069 nv_tx_done(dev);
3070 spin_unlock(&np->lock);
3071
3072 #ifdef CONFIG_FORCEDETH_NAPI
3073 if (events & NVREG_IRQ_RX_ALL) {
3074 netif_rx_schedule(dev, &np->napi);
3075
3076 /* Disable furthur receive irq's */
3077 spin_lock(&np->lock);
3078 np->irqmask &= ~NVREG_IRQ_RX_ALL;
3079
3080 if (np->msi_flags & NV_MSI_X_ENABLED)
3081 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3082 else
3083 writel(np->irqmask, base + NvRegIrqMask);
3084 spin_unlock(&np->lock);
3085 }
3086 #else
3087 if (nv_rx_process(dev, RX_WORK_PER_LOOP)) {
3088 if (unlikely(nv_alloc_rx(dev))) {
3089 spin_lock(&np->lock);
3090 if (!np->in_shutdown)
3091 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3092 spin_unlock(&np->lock);
3093 }
3094 }
3095 #endif
3096 if (unlikely(events & NVREG_IRQ_LINK)) {
3097 spin_lock(&np->lock);
3098 nv_link_irq(dev);
3099 spin_unlock(&np->lock);
3100 }
3101 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3102 spin_lock(&np->lock);
3103 nv_linkchange(dev);
3104 spin_unlock(&np->lock);
3105 np->link_timeout = jiffies + LINK_TIMEOUT;
3106 }
3107 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3108 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3109 dev->name, events);
3110 }
3111 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3112 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3113 dev->name, events);
3114 }
3115 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3116 spin_lock(&np->lock);
3117 /* disable interrupts on the nic */
3118 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3119 writel(0, base + NvRegIrqMask);
3120 else
3121 writel(np->irqmask, base + NvRegIrqMask);
3122 pci_push(base);
3123
3124 if (!np->in_shutdown) {
3125 np->nic_poll_irq = np->irqmask;
3126 np->recover_error = 1;
3127 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3128 }
3129 spin_unlock(&np->lock);
3130 break;
3131 }
3132 if (unlikely(i > max_interrupt_work)) {
3133 spin_lock(&np->lock);
3134 /* disable interrupts on the nic */
3135 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3136 writel(0, base + NvRegIrqMask);
3137 else
3138 writel(np->irqmask, base + NvRegIrqMask);
3139 pci_push(base);
3140
3141 if (!np->in_shutdown) {
3142 np->nic_poll_irq = np->irqmask;
3143 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3144 }
3145 spin_unlock(&np->lock);
3146 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3147 break;
3148 }
3149
3150 }
3151 dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
3152
3153 return IRQ_RETVAL(i);
3154 }
3155
3156 /**
3157 * All _optimized functions are used to help increase performance
3158 * (reduce CPU and increase throughput). They use descripter version 3,
3159 * compiler directives, and reduce memory accesses.
3160 */
3161 static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
3162 {
3163 struct net_device *dev = (struct net_device *) data;
3164 struct fe_priv *np = netdev_priv(dev);
3165 u8 __iomem *base = get_hwbase(dev);
3166 u32 events;
3167 int i;
3168
3169 dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name);
3170
3171 for (i=0; ; i++) {
3172 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3173 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3174 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3175 } else {
3176 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3177 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3178 }
3179 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3180 if (!(events & np->irqmask))
3181 break;
3182
3183 spin_lock(&np->lock);
3184 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3185 spin_unlock(&np->lock);
3186
3187 #ifdef CONFIG_FORCEDETH_NAPI
3188 if (events & NVREG_IRQ_RX_ALL) {
3189 netif_rx_schedule(dev, &np->napi);
3190
3191 /* Disable furthur receive irq's */
3192 spin_lock(&np->lock);
3193 np->irqmask &= ~NVREG_IRQ_RX_ALL;
3194
3195 if (np->msi_flags & NV_MSI_X_ENABLED)
3196 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3197 else
3198 writel(np->irqmask, base + NvRegIrqMask);
3199 spin_unlock(&np->lock);
3200 }
3201 #else
3202 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3203 if (unlikely(nv_alloc_rx_optimized(dev))) {
3204 spin_lock(&np->lock);
3205 if (!np->in_shutdown)
3206 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3207 spin_unlock(&np->lock);
3208 }
3209 }
3210 #endif
3211 if (unlikely(events & NVREG_IRQ_LINK)) {
3212 spin_lock(&np->lock);
3213 nv_link_irq(dev);
3214 spin_unlock(&np->lock);
3215 }
3216 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3217 spin_lock(&np->lock);
3218 nv_linkchange(dev);
3219 spin_unlock(&np->lock);
3220 np->link_timeout = jiffies + LINK_TIMEOUT;
3221 }
3222 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3223 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3224 dev->name, events);
3225 }
3226 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3227 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3228 dev->name, events);
3229 }
3230 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3231 spin_lock(&np->lock);
3232 /* disable interrupts on the nic */
3233 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3234 writel(0, base + NvRegIrqMask);
3235 else
3236 writel(np->irqmask, base + NvRegIrqMask);
3237 pci_push(base);
3238
3239 if (!np->in_shutdown) {
3240 np->nic_poll_irq = np->irqmask;
3241 np->recover_error = 1;
3242 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3243 }
3244 spin_unlock(&np->lock);
3245 break;
3246 }
3247
3248 if (unlikely(i > max_interrupt_work)) {
3249 spin_lock(&np->lock);
3250 /* disable interrupts on the nic */
3251 if (!(np->msi_flags & NV_MSI_X_ENABLED))
3252 writel(0, base + NvRegIrqMask);
3253 else
3254 writel(np->irqmask, base + NvRegIrqMask);
3255 pci_push(base);
3256
3257 if (!np->in_shutdown) {
3258 np->nic_poll_irq = np->irqmask;
3259 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3260 }
3261 spin_unlock(&np->lock);
3262 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3263 break;
3264 }
3265
3266 }
3267 dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name);
3268
3269 return IRQ_RETVAL(i);
3270 }
3271
3272 static irqreturn_t nv_nic_irq_tx(int foo, void *data)
3273 {
3274 struct net_device *dev = (struct net_device *) data;
3275 struct fe_priv *np = netdev_priv(dev);
3276 u8 __iomem *base = get_hwbase(dev);
3277 u32 events;
3278 int i;
3279 unsigned long flags;
3280
3281 dprintk(KERN_DEBUG "%s: nv_nic_irq_tx\n", dev->name);
3282
3283 for (i=0; ; i++) {
3284 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL;
3285 writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus);
3286 dprintk(KERN_DEBUG "%s: tx irq: %08x\n", dev->name, events);
3287 if (!(events & np->irqmask))
3288 break;
3289
3290 spin_lock_irqsave(&np->lock, flags);
3291 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3292 spin_unlock_irqrestore(&np->lock, flags);
3293
3294 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3295 dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3296 dev->name, events);
3297 }
3298 if (unlikely(i > max_interrupt_work)) {
3299 spin_lock_irqsave(&np->lock, flags);
3300 /* disable interrupts on the nic */
3301 writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask);
3302 pci_push(base);
3303
3304 if (!np->in_shutdown) {
3305 np->nic_poll_irq |= NVREG_IRQ_TX_ALL;
3306 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3307 }
3308 spin_unlock_irqrestore(&np->lock, flags);
3309 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_tx.\n", dev->name, i);
3310 break;
3311 }
3312
3313 }
3314 dprintk(KERN_DEBUG "%s: nv_nic_irq_tx completed\n", dev->name);
3315
3316 return IRQ_RETVAL(i);
3317 }
3318
3319 #ifdef CONFIG_FORCEDETH_NAPI
3320 static int nv_napi_poll(struct napi_struct *napi, int budget)
3321 {
3322 struct fe_priv *np = container_of(napi, struct fe_priv, napi);
3323 struct net_device *dev = np->dev;
3324 u8 __iomem *base = get_hwbase(dev);
3325 unsigned long flags;
3326 int pkts, retcode;
3327
3328 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
3329 pkts = nv_rx_process(dev, budget);
3330 retcode = nv_alloc_rx(dev);
3331 } else {
3332 pkts = nv_rx_process_optimized(dev, budget);
3333 retcode = nv_alloc_rx_optimized(dev);
3334 }
3335
3336 if (retcode) {
3337 spin_lock_irqsave(&np->lock, flags);
3338 if (!np->in_shutdown)
3339 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3340 spin_unlock_irqrestore(&np->lock, flags);
3341 }
3342
3343 if (pkts < budget) {
3344 /* re-enable receive interrupts */
3345 spin_lock_irqsave(&np->lock, flags);
3346
3347 __netif_rx_complete(dev, napi);
3348
3349 np->irqmask |= NVREG_IRQ_RX_ALL;
3350 if (np->msi_flags & NV_MSI_X_ENABLED)
3351 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3352 else
3353 writel(np->irqmask, base + NvRegIrqMask);
3354
3355 spin_unlock_irqrestore(&np->lock, flags);
3356 }
3357 return pkts;
3358 }
3359 #endif
3360
3361 #ifdef CONFIG_FORCEDETH_NAPI
3362 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3363 {
3364 struct net_device *dev = (struct net_device *) data;
3365 struct fe_priv *np = netdev_priv(dev);
3366 u8 __iomem *base = get_hwbase(dev);
3367 u32 events;
3368
3369 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3370 writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3371
3372 if (events) {
3373 netif_rx_schedule(dev, &np->napi);
3374 /* disable receive interrupts on the nic */
3375 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3376 pci_push(base);
3377 }
3378 return IRQ_HANDLED;
3379 }
3380 #else
3381 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3382 {
3383 struct net_device *dev = (struct net_device *) data;
3384 struct fe_priv *np = netdev_priv(dev);
3385 u8 __iomem *base = get_hwbase(dev);
3386 u32 events;
3387 int i;
3388 unsigned long flags;
3389
3390 dprintk(KERN_DEBUG "%s: nv_nic_irq_rx\n", dev->name);
3391
3392 for (i=0; ; i++) {
3393 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3394 writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3395 dprintk(KERN_DEBUG "%s: rx irq: %08x\n", dev->name, events);
3396 if (!(events & np->irqmask))
3397 break;
3398
3399 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3400 if (unlikely(nv_alloc_rx_optimized(dev))) {
3401 spin_lock_irqsave(&np->lock, flags);
3402 if (!np->in_shutdown)
3403 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3404 spin_unlock_irqrestore(&np->lock, flags);
3405 }
3406 }
3407
3408 if (unlikely(i > max_interrupt_work)) {
3409 spin_lock_irqsave(&np->lock, flags);
3410 /* disable interrupts on the nic */
3411 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3412 pci_push(base);
3413
3414 if (!np->in_shutdown) {
3415 np->nic_poll_irq |= NVREG_IRQ_RX_ALL;
3416 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3417 }
3418 spin_unlock_irqrestore(&np->lock, flags);
3419 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_rx.\n", dev->name, i);
3420 break;
3421 }
3422 }
3423 dprintk(KERN_DEBUG "%s: nv_nic_irq_rx completed\n", dev->name);
3424
3425 return IRQ_RETVAL(i);
3426 }
3427 #endif
3428
3429 static irqreturn_t nv_nic_irq_other(int foo, void *data)
3430 {
3431 struct net_device *dev = (struct net_device *) data;
3432 struct fe_priv *np = netdev_priv(dev);
3433 u8 __iomem *base = get_hwbase(dev);
3434 u32 events;
3435 int i;
3436 unsigned long flags;
3437
3438 dprintk(KERN_DEBUG "%s: nv_nic_irq_other\n", dev->name);
3439
3440 for (i=0; ; i++) {
3441 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER;
3442 writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus);
3443 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3444 if (!(events & np->irqmask))
3445 break;
3446
3447 /* check tx in case we reached max loop limit in tx isr */
3448 spin_lock_irqsave(&np->lock, flags);
3449 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3450 spin_unlock_irqrestore(&np->lock, flags);
3451
3452 if (events & NVREG_IRQ_LINK) {
3453 spin_lock_irqsave(&np->lock, flags);
3454 nv_link_irq(dev);
3455 spin_unlock_irqrestore(&np->lock, flags);
3456 }
3457 if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
3458 spin_lock_irqsave(&np->lock, flags);
3459 nv_linkchange(dev);
3460 spin_unlock_irqrestore(&np->lock, flags);
3461 np->link_timeout = jiffies + LINK_TIMEOUT;
3462 }
3463 if (events & NVREG_IRQ_RECOVER_ERROR) {
3464 spin_lock_irq(&np->lock);
3465 /* disable interrupts on the nic */
3466 writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3467 pci_push(base);
3468
3469 if (!np->in_shutdown) {
3470 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3471 np->recover_error = 1;
3472 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3473 }
3474 spin_unlock_irq(&np->lock);
3475 break;
3476 }
3477 if (events & (NVREG_IRQ_UNKNOWN)) {
3478 printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3479 dev->name, events);
3480 }
3481 if (unlikely(i > max_interrupt_work)) {
3482 spin_lock_irqsave(&np->lock, flags);
3483 /* disable interrupts on the nic */
3484 writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3485 pci_push(base);
3486
3487 if (!np->in_shutdown) {
3488 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3489 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3490 }
3491 spin_unlock_irqrestore(&np->lock, flags);
3492 printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_other.\n", dev->name, i);
3493 break;
3494 }
3495
3496 }
3497 dprintk(KERN_DEBUG "%s: nv_nic_irq_other completed\n", dev->name);
3498
3499 return IRQ_RETVAL(i);
3500 }
3501
3502 static irqreturn_t nv_nic_irq_test(int foo, void *data)
3503 {
3504 struct net_device *dev = (struct net_device *) data;
3505 struct fe_priv *np = netdev_priv(dev);
3506 u8 __iomem *base = get_hwbase(dev);
3507 u32 events;
3508
3509 dprintk(KERN_DEBUG "%s: nv_nic_irq_test\n", dev->name);
3510
3511 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3512 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3513 writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus);
3514 } else {
3515 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3516 writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus);
3517 }
3518 pci_push(base);
3519 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3520 if (!(events & NVREG_IRQ_TIMER))
3521 return IRQ_RETVAL(0);
3522
3523 spin_lock(&np->lock);
3524 np->intr_test = 1;
3525 spin_unlock(&np->lock);
3526
3527 dprintk(KERN_DEBUG "%s: nv_nic_irq_test completed\n", dev->name);
3528
3529 return IRQ_RETVAL(1);
3530 }
3531
3532 static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask)
3533 {
3534 u8 __iomem *base = get_hwbase(dev);
3535 int i;
3536 u32 msixmap = 0;
3537
3538 /* Each interrupt bit can be mapped to a MSIX vector (4 bits).
3539 * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents
3540 * the remaining 8 interrupts.
3541 */
3542 for (i = 0; i < 8; i++) {
3543 if ((irqmask >> i) & 0x1) {
3544 msixmap |= vector << (i << 2);
3545 }
3546 }
3547 writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0);
3548
3549 msixmap = 0;
3550 for (i = 0; i < 8; i++) {
3551 if ((irqmask >> (i + 8)) & 0x1) {
3552 msixmap |= vector << (i << 2);
3553 }
3554 }
3555 writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1);
3556 }
3557
3558 static int nv_request_irq(struct net_device *dev, int intr_test)
3559 {
3560 struct fe_priv *np = get_nvpriv(dev);
3561 u8 __iomem *base = get_hwbase(dev);
3562 int ret = 1;
3563 int i;
3564 irqreturn_t (*handler)(int foo, void *data);
3565
3566 if (intr_test) {
3567 handler = nv_nic_irq_test;
3568 } else {
3569 if (np->desc_ver == DESC_VER_3)
3570 handler = nv_nic_irq_optimized;
3571 else
3572 handler = nv_nic_irq;
3573 }
3574
3575 if (np->msi_flags & NV_MSI_X_CAPABLE) {
3576 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
3577 np->msi_x_entry[i].entry = i;
3578 }
3579 if ((ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK))) == 0) {
3580 np->msi_flags |= NV_MSI_X_ENABLED;
3581 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) {
3582 /* Request irq for rx handling */
3583 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, &nv_nic_irq_rx, IRQF_SHARED, dev->name, dev) != 0) {
3584 printk(KERN_INFO "forcedeth: request_irq failed for rx %d\n", ret);
3585 pci_disable_msix(np->pci_dev);
3586 np->msi_flags &= ~NV_MSI_X_ENABLED;
3587 goto out_err;
3588 }
3589 /* Request irq for tx handling */
3590 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, &nv_nic_irq_tx, IRQF_SHARED, dev->name, dev) != 0) {
3591 printk(KERN_INFO "forcedeth: request_irq failed for tx %d\n", ret);
3592 pci_disable_msix(np->pci_dev);
3593 np->msi_flags &= ~NV_MSI_X_ENABLED;
3594 goto out_free_rx;
3595 }
3596 /* Request irq for link and timer handling */
3597 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, &nv_nic_irq_other, IRQF_SHARED, dev->name, dev) != 0) {
3598 printk(KERN_INFO "forcedeth: request_irq failed for link %d\n", ret);
3599 pci_disable_msix(np->pci_dev);
3600 np->msi_flags &= ~NV_MSI_X_ENABLED;
3601 goto out_free_tx;
3602 }
3603 /* map interrupts to their respective vector */
3604 writel(0, base + NvRegMSIXMap0);
3605 writel(0, base + NvRegMSIXMap1);
3606 set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL);
3607 set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL);
3608 set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER);
3609 } else {
3610 /* Request irq for all interrupts */
3611 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, handler, IRQF_SHARED, dev->name, dev) != 0) {
3612 printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3613 pci_disable_msix(np->pci_dev);
3614 np->msi_flags &= ~NV_MSI_X_ENABLED;
3615 goto out_err;
3616 }
3617
3618 /* map interrupts to vector 0 */
3619 writel(0, base + NvRegMSIXMap0);
3620 writel(0, base + NvRegMSIXMap1);
3621 }
3622 }
3623 }
3624 if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) {
3625 if ((ret = pci_enable_msi(np->pci_dev)) == 0) {
3626 np->msi_flags |= NV_MSI_ENABLED;
3627 dev->irq = np->pci_dev->irq;
3628 if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) {
3629 printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3630 pci_disable_msi(np->pci_dev);
3631 np->msi_flags &= ~NV_MSI_ENABLED;
3632 dev->irq = np->pci_dev->irq;
3633 goto out_err;
3634 }
3635
3636 /* map interrupts to vector 0 */
3637 writel(0, base + NvRegMSIMap0);
3638 writel(0, base + NvRegMSIMap1);
3639 /* enable msi vector 0 */
3640 writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
3641 }
3642 }
3643 if (ret != 0) {
3644 if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0)
3645 goto out_err;
3646
3647 }
3648
3649 return 0;
3650 out_free_tx:
3651 free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev);
3652 out_free_rx:
3653 free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev);
3654 out_err:
3655 return 1;
3656 }
3657
3658 static void nv_free_irq(struct net_device *dev)
3659 {
3660 struct fe_priv *np = get_nvpriv(dev);
3661 int i;
3662
3663 if (np->msi_flags & NV_MSI_X_ENABLED) {
3664 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
3665 free_irq(np->msi_x_entry[i].vector, dev);
3666 }
3667 pci_disable_msix(np->pci_dev);
3668 np->msi_flags &= ~NV_MSI_X_ENABLED;
3669 } else {
3670 free_irq(np->pci_dev->irq, dev);
3671 if (np->msi_flags & NV_MSI_ENABLED) {
3672 pci_disable_msi(np->pci_dev);
3673 np->msi_flags &= ~NV_MSI_ENABLED;
3674 }
3675 }
3676 }
3677
3678 static void nv_do_nic_poll(unsigned long data)
3679 {
3680 struct net_device *dev = (struct net_device *) data;
3681 struct fe_priv *np = netdev_priv(dev);
3682 u8 __iomem *base = get_hwbase(dev);
3683 u32 mask = 0;
3684
3685 /*
3686 * First disable irq(s) and then
3687 * reenable interrupts on the nic, we have to do this before calling
3688 * nv_nic_irq because that may decide to do otherwise
3689 */
3690
3691 if (!using_multi_irqs(dev)) {
3692 if (np->msi_flags & NV_MSI_X_ENABLED)
3693 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
3694 else
3695 disable_irq_lockdep(np->pci_dev->irq);
3696 mask = np->irqmask;
3697 } else {
3698 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
3699 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
3700 mask |= NVREG_IRQ_RX_ALL;
3701 }
3702 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
3703 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
3704 mask |= NVREG_IRQ_TX_ALL;
3705 }
3706 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
3707 disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
3708 mask |= NVREG_IRQ_OTHER;
3709 }
3710 }
3711 np->nic_poll_irq = 0;
3712
3713 /* disable_irq() contains synchronize_irq, thus no irq handler can run now */
3714
3715 if (np->recover_error) {
3716 np->recover_error = 0;
3717 printk(KERN_INFO "forcedeth: MAC in recoverable error state\n");
3718 if (netif_running(dev)) {
3719 netif_tx_lock_bh(dev);
3720 spin_lock(&np->lock);
3721 /* stop engines */
3722 nv_stop_rx(dev);
3723 nv_stop_tx(dev);
3724 nv_txrx_reset(dev);
3725 /* drain rx queue */
3726 nv_drain_rx(dev);
3727 nv_drain_tx(dev);
3728 /* reinit driver view of the rx queue */
3729 set_bufsize(dev);
3730 if (nv_init_ring(dev)) {
3731 if (!np->in_shutdown)
3732 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3733 }
3734 /* reinit nic view of the rx queue */
3735 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
3736 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
3737 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
3738 base + NvRegRingSizes);
3739 pci_push(base);
3740 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
3741 pci_push(base);
3742
3743 /* restart rx engine */
3744 nv_start_rx(dev);
3745 nv_start_tx(dev);
3746 spin_unlock(&np->lock);
3747 netif_tx_unlock_bh(dev);
3748 }
3749 }
3750
3751
3752 writel(mask, base + NvRegIrqMask);
3753 pci_push(base);
3754
3755 if (!using_multi_irqs(dev)) {
3756 if (np->desc_ver == DESC_VER_3)
3757 nv_nic_irq_optimized(0, dev);
3758 else
3759 nv_nic_irq(0, dev);
3760 if (np->msi_flags & NV_MSI_X_ENABLED)
3761 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
3762 else
3763 enable_irq_lockdep(np->pci_dev->irq);
3764 } else {
3765 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
3766 nv_nic_irq_rx(0, dev);
3767 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
3768 }
3769 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
3770 nv_nic_irq_tx(0, dev);
3771 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
3772 }
3773 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
3774 nv_nic_irq_other(0, dev);
3775 enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
3776 }
3777 }
3778 }
3779
3780 #ifdef CONFIG_NET_POLL_CONTROLLER
3781 static void nv_poll_controller(struct net_device *dev)
3782 {
3783 nv_do_nic_poll((unsigned long) dev);
3784 }
3785 #endif
3786
3787 static void nv_do_stats_poll(unsigned long data)
3788 {
3789 struct net_device *dev = (struct net_device *) data;
3790 struct fe_priv *np = netdev_priv(dev);
3791
3792 nv_get_hw_stats(dev);
3793
3794 if (!np->in_shutdown)
3795 mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
3796 }
3797
3798 static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3799 {
3800 struct fe_priv *np = netdev_priv(dev);
3801 strcpy(info->driver, DRV_NAME);
3802 strcpy(info->version, FORCEDETH_VERSION);
3803 strcpy(info->bus_info, pci_name(np->pci_dev));
3804 }
3805
3806 static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
3807 {
3808 struct fe_priv *np = netdev_priv(dev);
3809 wolinfo->supported = WAKE_MAGIC;
3810
3811 spin_lock_irq(&np->lock);
3812 if (np->wolenabled)
3813 wolinfo->wolopts = WAKE_MAGIC;
3814 spin_unlock_irq(&np->lock);
3815 }
3816
3817 static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
3818 {
3819 struct fe_priv *np = netdev_priv(dev);
3820 u8 __iomem *base = get_hwbase(dev);
3821 u32 flags = 0;
3822
3823 if (wolinfo->wolopts == 0) {
3824 np->wolenabled = 0;
3825 } else if (wolinfo->wolopts & WAKE_MAGIC) {
3826 np->wolenabled = 1;
3827 flags = NVREG_WAKEUPFLAGS_ENABLE;
3828 }
3829 if (netif_running(dev)) {
3830 spin_lock_irq(&np->lock);
3831 writel(flags, base + NvRegWakeUpFlags);
3832 spin_unlock_irq(&np->lock);
3833 }
3834 return 0;
3835 }
3836
3837 static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3838 {
3839 struct fe_priv *np = netdev_priv(dev);
3840 int adv;
3841
3842 spin_lock_irq(&np->lock);
3843 ecmd->port = PORT_MII;
3844 if (!netif_running(dev)) {
3845 /* We do not track link speed / duplex setting if the
3846 * interface is disabled. Force a link check */
3847 if (nv_update_linkspeed(dev)) {
3848 if (!netif_carrier_ok(dev))
3849 netif_carrier_on(dev);
3850 } else {
3851 if (netif_carrier_ok(dev))
3852 netif_carrier_off(dev);
3853 }
3854 }
3855
3856 if (netif_carrier_ok(dev)) {
3857 switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) {
3858 case NVREG_LINKSPEED_10:
3859 ecmd->speed = SPEED_10;
3860 break;
3861 case NVREG_LINKSPEED_100:
3862 ecmd->speed = SPEED_100;
3863 break;
3864 case NVREG_LINKSPEED_1000:
3865 ecmd->speed = SPEED_1000;
3866 break;
3867 }
3868 ecmd->duplex = DUPLEX_HALF;
3869 if (np->duplex)
3870 ecmd->duplex = DUPLEX_FULL;
3871 } else {
3872 ecmd->speed = -1;
3873 ecmd->duplex = -1;
3874 }
3875
3876 ecmd->autoneg = np->autoneg;
3877
3878 ecmd->advertising = ADVERTISED_MII;
3879 if (np->autoneg) {
3880 ecmd->advertising |= ADVERTISED_Autoneg;
3881 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3882 if (adv & ADVERTISE_10HALF)
3883 ecmd->advertising |= ADVERTISED_10baseT_Half;
3884 if (adv & ADVERTISE_10FULL)
3885 ecmd->advertising |= ADVERTISED_10baseT_Full;
3886 if (adv & ADVERTISE_100HALF)
3887 ecmd->advertising |= ADVERTISED_100baseT_Half;
3888 if (adv & ADVERTISE_100FULL)
3889 ecmd->advertising |= ADVERTISED_100baseT_Full;
3890 if (np->gigabit == PHY_GIGABIT) {
3891 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3892 if (adv & ADVERTISE_1000FULL)
3893 ecmd->advertising |= ADVERTISED_1000baseT_Full;
3894 }
3895 }
3896 ecmd->supported = (SUPPORTED_Autoneg |
3897 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
3898 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
3899 SUPPORTED_MII);
3900 if (np->gigabit == PHY_GIGABIT)
3901 ecmd->supported |= SUPPORTED_1000baseT_Full;
3902
3903 ecmd->phy_address = np->phyaddr;
3904 ecmd->transceiver = XCVR_EXTERNAL;
3905
3906 /* ignore maxtxpkt, maxrxpkt for now */
3907 spin_unlock_irq(&np->lock);
3908 return 0;
3909 }
3910
3911 static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
3912 {
3913 struct fe_priv *np = netdev_priv(dev);
3914
3915 if (ecmd->port != PORT_MII)
3916 return -EINVAL;
3917 if (ecmd->transceiver != XCVR_EXTERNAL)
3918 return -EINVAL;
3919 if (ecmd->phy_address != np->phyaddr) {
3920 /* TODO: support switching between multiple phys. Should be
3921 * trivial, but not enabled due to lack of test hardware. */
3922 return -EINVAL;
3923 }
3924 if (ecmd->autoneg == AUTONEG_ENABLE) {
3925 u32 mask;
3926
3927 mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
3928 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
3929 if (np->gigabit == PHY_GIGABIT)
3930 mask |= ADVERTISED_1000baseT_Full;
3931
3932 if ((ecmd->advertising & mask) == 0)
3933 return -EINVAL;
3934
3935 } else if (ecmd->autoneg == AUTONEG_DISABLE) {
3936 /* Note: autonegotiation disable, speed 1000 intentionally
3937 * forbidden - noone should need that. */
3938
3939 if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
3940 return -EINVAL;
3941 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
3942 return -EINVAL;
3943 } else {
3944 return -EINVAL;
3945 }
3946
3947 netif_carrier_off(dev);
3948 if (netif_running(dev)) {
3949 nv_disable_irq(dev);
3950 netif_tx_lock_bh(dev);
3951 spin_lock(&np->lock);
3952 /* stop engines */
3953 nv_stop_rx(dev);
3954 nv_stop_tx(dev);
3955 spin_unlock(&np->lock);
3956 netif_tx_unlock_bh(dev);
3957 }
3958
3959 if (ecmd->autoneg == AUTONEG_ENABLE) {
3960 int adv, bmcr;
3961
3962 np->autoneg = 1;
3963
3964 /* advertise only what has been requested */
3965 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3966 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3967 if (ecmd->advertising & ADVERTISED_10baseT_Half)
3968 adv |= ADVERTISE_10HALF;
3969 if (ecmd->advertising & ADVERTISED_10baseT_Full)
3970 adv |= ADVERTISE_10FULL;
3971 if (ecmd->advertising & ADVERTISED_100baseT_Half)
3972 adv |= ADVERTISE_100HALF;
3973 if (ecmd->advertising & ADVERTISED_100baseT_Full)
3974 adv |= ADVERTISE_100FULL;
3975 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
3976 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
3977 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
3978 adv |= ADVERTISE_PAUSE_ASYM;
3979 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
3980
3981 if (np->gigabit == PHY_GIGABIT) {
3982 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3983 adv &= ~ADVERTISE_1000FULL;
3984 if (ecmd->advertising & ADVERTISED_1000baseT_Full)
3985 adv |= ADVERTISE_1000FULL;
3986 mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
3987 }
3988
3989 if (netif_running(dev))
3990 printk(KERN_INFO "%s: link down.\n", dev->name);
3991 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
3992 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
3993 bmcr |= BMCR_ANENABLE;
3994 /* reset the phy in order for settings to stick,
3995 * and cause autoneg to start */
3996 if (phy_reset(dev, bmcr)) {
3997 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
3998 return -EINVAL;
3999 }
4000 } else {
4001 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4002 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4003 }
4004 } else {
4005 int adv, bmcr;
4006
4007 np->autoneg = 0;
4008
4009 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4010 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4011 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF)
4012 adv |= ADVERTISE_10HALF;
4013 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL)
4014 adv |= ADVERTISE_10FULL;
4015 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF)
4016 adv |= ADVERTISE_100HALF;
4017 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
4018 adv |= ADVERTISE_100FULL;
4019 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
4020 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */
4021 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4022 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
4023 }
4024 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) {
4025 adv |= ADVERTISE_PAUSE_ASYM;
4026 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
4027 }
4028 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4029 np->fixed_mode = adv;
4030
4031 if (np->gigabit == PHY_GIGABIT) {
4032 adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
4033 adv &= ~ADVERTISE_1000FULL;
4034 mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
4035 }
4036
4037 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4038 bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX);
4039 if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL))
4040 bmcr |= BMCR_FULLDPLX;
4041 if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL))
4042 bmcr |= BMCR_SPEED100;
4043 if (np->phy_oui == PHY_OUI_MARVELL) {
4044 /* reset the phy in order for forced mode settings to stick */
4045 if (phy_reset(dev, bmcr)) {
4046 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4047 return -EINVAL;
4048 }
4049 } else {
4050 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4051 if (netif_running(dev)) {
4052 /* Wait a bit and then reconfigure the nic. */
4053 udelay(10);
4054 nv_linkchange(dev);
4055 }
4056 }
4057 }
4058
4059 if (netif_running(dev)) {
4060 nv_start_rx(dev);
4061 nv_start_tx(dev);
4062 nv_enable_irq(dev);
4063 }
4064
4065 return 0;
4066 }
4067
4068 #define FORCEDETH_REGS_VER 1
4069
4070 static int nv_get_regs_len(struct net_device *dev)
4071 {
4072 struct fe_priv *np = netdev_priv(dev);
4073 return np->register_size;
4074 }
4075
4076 static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
4077 {
4078 struct fe_priv *np = netdev_priv(dev);
4079 u8 __iomem *base = get_hwbase(dev);
4080 u32 *rbuf = buf;
4081 int i;
4082
4083 regs->version = FORCEDETH_REGS_VER;
4084 spin_lock_irq(&np->lock);
4085 for (i = 0;i <= np->register_size/sizeof(u32); i++)
4086 rbuf[i] = readl(base + i*sizeof(u32));
4087 spin_unlock_irq(&np->lock);
4088 }
4089
4090 static int nv_nway_reset(struct net_device *dev)
4091 {
4092 struct fe_priv *np = netdev_priv(dev);
4093 int ret;
4094
4095 if (np->autoneg) {
4096 int bmcr;
4097
4098 netif_carrier_off(dev);
4099 if (netif_running(dev)) {
4100 nv_disable_irq(dev);
4101 netif_tx_lock_bh(dev);
4102 spin_lock(&np->lock);
4103 /* stop engines */
4104 nv_stop_rx(dev);
4105 nv_stop_tx(dev);
4106 spin_unlock(&np->lock);
4107 netif_tx_unlock_bh(dev);
4108 printk(KERN_INFO "%s: link down.\n", dev->name);
4109 }
4110
4111 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4112 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
4113 bmcr |= BMCR_ANENABLE;
4114 /* reset the phy in order for settings to stick*/
4115 if (phy_reset(dev, bmcr)) {
4116 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4117 return -EINVAL;
4118 }
4119 } else {
4120 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4121 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4122 }
4123
4124 if (netif_running(dev)) {
4125 nv_start_rx(dev);
4126 nv_start_tx(dev);
4127 nv_enable_irq(dev);
4128 }
4129 ret = 0;
4130 } else {
4131 ret = -EINVAL;
4132 }
4133
4134 return ret;
4135 }
4136
4137 static int nv_set_tso(struct net_device *dev, u32 value)
4138 {
4139 struct fe_priv *np = netdev_priv(dev);
4140
4141 if ((np->driver_data & DEV_HAS_CHECKSUM))
4142 return ethtool_op_set_tso(dev, value);
4143 else
4144 return -EOPNOTSUPP;
4145 }
4146
4147 static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4148 {
4149 struct fe_priv *np = netdev_priv(dev);
4150
4151 ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4152 ring->rx_mini_max_pending = 0;
4153 ring->rx_jumbo_max_pending = 0;
4154 ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4155
4156 ring->rx_pending = np->rx_ring_size;
4157 ring->rx_mini_pending = 0;
4158 ring->rx_jumbo_pending = 0;
4159 ring->tx_pending = np->tx_ring_size;
4160 }
4161
4162 static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4163 {
4164 struct fe_priv *np = netdev_priv(dev);
4165 u8 __iomem *base = get_hwbase(dev);
4166 u8 *rxtx_ring, *rx_skbuff, *tx_skbuff;
4167 dma_addr_t ring_addr;
4168
4169 if (ring->rx_pending < RX_RING_MIN ||
4170 ring->tx_pending < TX_RING_MIN ||
4171 ring->rx_mini_pending != 0 ||
4172 ring->rx_jumbo_pending != 0 ||
4173 (np->desc_ver == DESC_VER_1 &&
4174 (ring->rx_pending > RING_MAX_DESC_VER_1 ||
4175 ring->tx_pending > RING_MAX_DESC_VER_1)) ||
4176 (np->desc_ver != DESC_VER_1 &&
4177 (ring->rx_pending > RING_MAX_DESC_VER_2_3 ||
4178 ring->tx_pending > RING_MAX_DESC_VER_2_3))) {
4179 return -EINVAL;
4180 }
4181
4182 /* allocate new rings */
4183 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4184 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4185 sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4186 &ring_addr);
4187 } else {
4188 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4189 sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4190 &ring_addr);
4191 }
4192 rx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->rx_pending, GFP_KERNEL);
4193 tx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->tx_pending, GFP_KERNEL);
4194 if (!rxtx_ring || !rx_skbuff || !tx_skbuff) {
4195 /* fall back to old rings */
4196 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4197 if (rxtx_ring)
4198 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4199 rxtx_ring, ring_addr);
4200 } else {
4201 if (rxtx_ring)
4202 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4203 rxtx_ring, ring_addr);
4204 }
4205 if (rx_skbuff)
4206 kfree(rx_skbuff);
4207 if (tx_skbuff)
4208 kfree(tx_skbuff);
4209 goto exit;
4210 }
4211
4212 if (netif_running(dev)) {
4213 nv_disable_irq(dev);
4214 netif_tx_lock_bh(dev);
4215 spin_lock(&np->lock);
4216 /* stop engines */
4217 nv_stop_rx(dev);
4218 nv_stop_tx(dev);
4219 nv_txrx_reset(dev);
4220 /* drain queues */
4221 nv_drain_rx(dev);
4222 nv_drain_tx(dev);
4223 /* delete queues */
4224 free_rings(dev);
4225 }
4226
4227 /* set new values */
4228 np->rx_ring_size = ring->rx_pending;
4229 np->tx_ring_size = ring->tx_pending;
4230 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4231 np->rx_ring.orig = (struct ring_desc*)rxtx_ring;
4232 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
4233 } else {
4234 np->rx_ring.ex = (struct ring_desc_ex*)rxtx_ring;
4235 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
4236 }
4237 np->rx_skb = (struct nv_skb_map*)rx_skbuff;
4238 np->tx_skb = (struct nv_skb_map*)tx_skbuff;
4239 np->ring_addr = ring_addr;
4240
4241 memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size);
4242 memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size);
4243
4244 if (netif_running(dev)) {
4245 /* reinit driver view of the queues */
4246 set_bufsize(dev);
4247 if (nv_init_ring(dev)) {
4248 if (!np->in_shutdown)
4249 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4250 }
4251
4252 /* reinit nic view of the queues */
4253 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4254 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4255 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4256 base + NvRegRingSizes);
4257 pci_push(base);
4258 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4259 pci_push(base);
4260
4261 /* restart engines */
4262 nv_start_rx(dev);
4263 nv_start_tx(dev);
4264 spin_unlock(&np->lock);
4265 netif_tx_unlock_bh(dev);
4266 nv_enable_irq(dev);
4267 }
4268 return 0;
4269 exit:
4270 return -ENOMEM;
4271 }
4272
4273 static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4274 {
4275 struct fe_priv *np = netdev_priv(dev);
4276
4277 pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0;
4278 pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0;
4279 pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0;
4280 }
4281
4282 static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4283 {
4284 struct fe_priv *np = netdev_priv(dev);
4285 int adv, bmcr;
4286
4287 if ((!np->autoneg && np->duplex == 0) ||
4288 (np->autoneg && !pause->autoneg && np->duplex == 0)) {
4289 printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n",
4290 dev->name);
4291 return -EINVAL;
4292 }
4293 if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
4294 printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name);
4295 return -EINVAL;
4296 }
4297
4298 netif_carrier_off(dev);
4299 if (netif_running(dev)) {
4300 nv_disable_irq(dev);
4301 netif_tx_lock_bh(dev);
4302 spin_lock(&np->lock);
4303 /* stop engines */
4304 nv_stop_rx(dev);
4305 nv_stop_tx(dev);
4306 spin_unlock(&np->lock);
4307 netif_tx_unlock_bh(dev);
4308 }
4309
4310 np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ);
4311 if (pause->rx_pause)
4312 np->pause_flags |= NV_PAUSEFRAME_RX_REQ;
4313 if (pause->tx_pause)
4314 np->pause_flags |= NV_PAUSEFRAME_TX_REQ;
4315
4316 if (np->autoneg && pause->autoneg) {
4317 np->pause_flags |= NV_PAUSEFRAME_AUTONEG;
4318
4319 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4320 adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4321 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
4322 adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4323 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
4324 adv |= ADVERTISE_PAUSE_ASYM;
4325 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4326
4327 if (netif_running(dev))
4328 printk(KERN_INFO "%s: link down.\n", dev->name);
4329 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4330 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4331 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4332 } else {
4333 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
4334 if (pause->rx_pause)
4335 np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
4336 if (pause->tx_pause)
4337 np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
4338
4339 if (!netif_running(dev))
4340 nv_update_linkspeed(dev);
4341 else
4342 nv_update_pause(dev, np->pause_flags);
4343 }
4344
4345 if (netif_running(dev)) {
4346 nv_start_rx(dev);
4347 nv_start_tx(dev);
4348 nv_enable_irq(dev);
4349 }
4350 return 0;
4351 }
4352
4353 static u32 nv_get_rx_csum(struct net_device *dev)
4354 {
4355 struct fe_priv *np = netdev_priv(dev);
4356 return (np->rx_csum) != 0;
4357 }
4358
4359 static int nv_set_rx_csum(struct net_device *dev, u32 data)
4360 {
4361 struct fe_priv *np = netdev_priv(dev);
4362 u8 __iomem *base = get_hwbase(dev);
4363 int retcode = 0;
4364
4365 if (np->driver_data & DEV_HAS_CHECKSUM) {
4366 if (data) {
4367 np->rx_csum = 1;
4368 np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
4369 } else {
4370 np->rx_csum = 0;
4371 /* vlan is dependent on rx checksum offload */
4372 if (!(np->vlanctl_bits & NVREG_VLANCONTROL_ENABLE))
4373 np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK;
4374 }
4375 if (netif_running(dev)) {
4376 spin_lock_irq(&np->lock);
4377 writel(np->txrxctl_bits, base + NvRegTxRxControl);
4378 spin_unlock_irq(&np->lock);
4379 }
4380 } else {
4381 return -EINVAL;
4382 }
4383
4384 return retcode;
4385 }
4386
4387 static int nv_set_tx_csum(struct net_device *dev, u32 data)
4388 {
4389 struct fe_priv *np = netdev_priv(dev);
4390
4391 if (np->driver_data & DEV_HAS_CHECKSUM)
4392 return ethtool_op_set_tx_hw_csum(dev, data);
4393 else
4394 return -EOPNOTSUPP;
4395 }
4396
4397 static int nv_set_sg(struct net_device *dev, u32 data)
4398 {
4399 struct fe_priv *np = netdev_priv(dev);
4400
4401 if (np->driver_data & DEV_HAS_CHECKSUM)
4402 return ethtool_op_set_sg(dev, data);
4403 else
4404 return -EOPNOTSUPP;
4405 }
4406
4407 static int nv_get_sset_count(struct net_device *dev, int sset)
4408 {
4409 struct fe_priv *np = netdev_priv(dev);
4410
4411 switch (sset) {
4412 case ETH_SS_TEST:
4413 if (np->driver_data & DEV_HAS_TEST_EXTENDED)
4414 return NV_TEST_COUNT_EXTENDED;
4415 else
4416 return NV_TEST_COUNT_BASE;
4417 case ETH_SS_STATS:
4418 if (np->driver_data & DEV_HAS_STATISTICS_V1)
4419 return NV_DEV_STATISTICS_V1_COUNT;
4420 else if (np->driver_data & DEV_HAS_STATISTICS_V2)
4421 return NV_DEV_STATISTICS_V2_COUNT;
4422 else
4423 return 0;
4424 default:
4425 return -EOPNOTSUPP;
4426 }
4427 }
4428
4429 static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer)
4430 {
4431 struct fe_priv *np = netdev_priv(dev);
4432
4433 /* update stats */
4434 nv_do_stats_poll((unsigned long)dev);
4435
4436 memcpy(buffer, &np->estats, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64));
4437 }
4438
4439 static int nv_link_test(struct net_device *dev)
4440 {
4441 struct fe_priv *np = netdev_priv(dev);
4442 int mii_status;
4443
4444 mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4445 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4446
4447 /* check phy link status */
4448 if (!(mii_status & BMSR_LSTATUS))
4449 return 0;
4450 else
4451 return 1;
4452 }
4453
4454 static int nv_register_test(struct net_device *dev)
4455 {
4456 u8 __iomem *base = get_hwbase(dev);
4457 int i = 0;
4458 u32 orig_read, new_read;
4459
4460 do {
4461 orig_read = readl(base + nv_registers_test[i].reg);
4462
4463 /* xor with mask to toggle bits */
4464 orig_read ^= nv_registers_test[i].mask;
4465
4466 writel(orig_read, base + nv_registers_test[i].reg);
4467
4468 new_read = readl(base + nv_registers_test[i].reg);
4469
4470 if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask))
4471 return 0;
4472
4473 /* restore original value */
4474 orig_read ^= nv_registers_test[i].mask;
4475 writel(orig_read, base + nv_registers_test[i].reg);
4476
4477 } while (nv_registers_test[++i].reg != 0);
4478
4479 return 1;
4480 }
4481
4482 static int nv_interrupt_test(struct net_device *dev)
4483 {
4484 struct fe_priv *np = netdev_priv(dev);
4485 u8 __iomem *base = get_hwbase(dev);
4486 int ret = 1;
4487 int testcnt;
4488 u32 save_msi_flags, save_poll_interval = 0;
4489
4490 if (netif_running(dev)) {
4491 /* free current irq */
4492 nv_free_irq(dev);
4493 save_poll_interval = readl(base+NvRegPollingInterval);
4494 }
4495
4496 /* flag to test interrupt handler */
4497 np->intr_test = 0;
4498
4499 /* setup test irq */
4500 save_msi_flags = np->msi_flags;
4501 np->msi_flags &= ~NV_MSI_X_VECTORS_MASK;
4502 np->msi_flags |= 0x001; /* setup 1 vector */
4503 if (nv_request_irq(dev, 1))
4504 return 0;
4505
4506 /* setup timer interrupt */
4507 writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
4508 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4509
4510 nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4511
4512 /* wait for at least one interrupt */
4513 msleep(100);
4514
4515 spin_lock_irq(&np->lock);
4516
4517 /* flag should be set within ISR */
4518 testcnt = np->intr_test;
4519 if (!testcnt)
4520 ret = 2;
4521
4522 nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4523 if (!(np->msi_flags & NV_MSI_X_ENABLED))
4524 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4525 else
4526 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
4527
4528 spin_unlock_irq(&np->lock);
4529
4530 nv_free_irq(dev);
4531
4532 np->msi_flags = save_msi_flags;
4533
4534 if (netif_running(dev)) {
4535 writel(save_poll_interval, base + NvRegPollingInterval);
4536 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4537 /* restore original irq */
4538 if (nv_request_irq(dev, 0))
4539 return 0;
4540 }
4541
4542 return ret;
4543 }
4544
4545 static int nv_loopback_test(struct net_device *dev)
4546 {
4547 struct fe_priv *np = netdev_priv(dev);
4548 u8 __iomem *base = get_hwbase(dev);
4549 struct sk_buff *tx_skb, *rx_skb;
4550 dma_addr_t test_dma_addr;
4551 u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
4552 u32 flags;
4553 int len, i, pkt_len;
4554 u8 *pkt_data;
4555 u32 filter_flags = 0;
4556 u32 misc1_flags = 0;
4557 int ret = 1;
4558
4559 if (netif_running(dev)) {
4560 nv_disable_irq(dev);
4561 filter_flags = readl(base + NvRegPacketFilterFlags);
4562 misc1_flags = readl(base + NvRegMisc1);
4563 } else {
4564 nv_txrx_reset(dev);
4565 }
4566
4567 /* reinit driver view of the rx queue */
4568 set_bufsize(dev);
4569 nv_init_ring(dev);
4570
4571 /* setup hardware for loopback */
4572 writel(NVREG_MISC1_FORCE, base + NvRegMisc1);
4573 writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags);
4574
4575 /* reinit nic view of the rx queue */
4576 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4577 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4578 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4579 base + NvRegRingSizes);
4580 pci_push(base);
4581
4582 /* restart rx engine */
4583 nv_start_rx(dev);
4584 nv_start_tx(dev);
4585
4586 /* setup packet for tx */
4587 pkt_len = ETH_DATA_LEN;
4588 tx_skb = dev_alloc_skb(pkt_len);
4589 if (!tx_skb) {
4590 printk(KERN_ERR "dev_alloc_skb() failed during loopback test"
4591 " of %s\n", dev->name);
4592 ret = 0;
4593 goto out;
4594 }
4595 test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
4596 skb_tailroom(tx_skb),
4597 PCI_DMA_FROMDEVICE);
4598 pkt_data = skb_put(tx_skb, pkt_len);
4599 for (i = 0; i < pkt_len; i++)
4600 pkt_data[i] = (u8)(i & 0xff);
4601
4602 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4603 np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
4604 np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4605 } else {
4606 np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr));
4607 np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr));
4608 np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4609 }
4610 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4611 pci_push(get_hwbase(dev));
4612
4613 msleep(500);
4614
4615 /* check for rx of the packet */
4616 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
4617 flags = le32_to_cpu(np->rx_ring.orig[0].flaglen);
4618 len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver);
4619
4620 } else {
4621 flags = le32_to_cpu(np->rx_ring.ex[0].flaglen);
4622 len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver);
4623 }
4624
4625 if (flags & NV_RX_AVAIL) {
4626 ret = 0;
4627 } else if (np->desc_ver == DESC_VER_1) {
4628 if (flags & NV_RX_ERROR)
4629 ret = 0;
4630 } else {
4631 if (flags & NV_RX2_ERROR) {
4632 ret = 0;
4633 }
4634 }
4635
4636 if (ret) {
4637 if (len != pkt_len) {
4638 ret = 0;
4639 dprintk(KERN_DEBUG "%s: loopback len mismatch %d vs %d\n",
4640 dev->name, len, pkt_len);
4641 } else {
4642 rx_skb = np->rx_skb[0].skb;
4643 for (i = 0; i < pkt_len; i++) {
4644 if (rx_skb->data[i] != (u8)(i & 0xff)) {
4645 ret = 0;
4646 dprintk(KERN_DEBUG "%s: loopback pattern check failed on byte %d\n",
4647 dev->name, i);
4648 break;
4649 }
4650 }
4651 }
4652 } else {
4653 dprintk(KERN_DEBUG "%s: loopback - did not receive test packet\n", dev->name);
4654 }
4655
4656 pci_unmap_page(np->pci_dev, test_dma_addr,
4657 (skb_end_pointer(tx_skb) - tx_skb->data),
4658 PCI_DMA_TODEVICE);
4659 dev_kfree_skb_any(tx_skb);
4660 out:
4661 /* stop engines */
4662 nv_stop_rx(dev);
4663 nv_stop_tx(dev);
4664 nv_txrx_reset(dev);
4665 /* drain rx queue */
4666 nv_drain_rx(dev);
4667 nv_drain_tx(dev);
4668
4669 if (netif_running(dev)) {
4670 writel(misc1_flags, base + NvRegMisc1);
4671 writel(filter_flags, base + NvRegPacketFilterFlags);
4672 nv_enable_irq(dev);
4673 }
4674
4675 return ret;
4676 }
4677
4678 static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer)
4679 {
4680 struct fe_priv *np = netdev_priv(dev);
4681 u8 __iomem *base = get_hwbase(dev);
4682 int result;
4683 memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64));
4684
4685 if (!nv_link_test(dev)) {
4686 test->flags |= ETH_TEST_FL_FAILED;
4687 buffer[0] = 1;
4688 }
4689
4690 if (test->flags & ETH_TEST_FL_OFFLINE) {
4691 if (netif_running(dev)) {
4692 netif_stop_queue(dev);
4693 #ifdef CONFIG_FORCEDETH_NAPI
4694 napi_disable(&np->napi);
4695 #endif
4696 netif_tx_lock_bh(dev);
4697 spin_lock_irq(&np->lock);
4698 nv_disable_hw_interrupts(dev, np->irqmask);
4699 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
4700 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4701 } else {
4702 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
4703 }
4704 /* stop engines */
4705 nv_stop_rx(dev);
4706 nv_stop_tx(dev);
4707 nv_txrx_reset(dev);
4708 /* drain rx queue */
4709 nv_drain_rx(dev);
4710 nv_drain_tx(dev);
4711 spin_unlock_irq(&np->lock);
4712 netif_tx_unlock_bh(dev);
4713 }
4714
4715 if (!nv_register_test(dev)) {
4716 test->flags |= ETH_TEST_FL_FAILED;
4717 buffer[1] = 1;
4718 }
4719
4720 result = nv_interrupt_test(dev);
4721 if (result != 1) {
4722 test->flags |= ETH_TEST_FL_FAILED;
4723 buffer[2] = 1;
4724 }
4725 if (result == 0) {
4726 /* bail out */
4727 return;
4728 }
4729
4730 if (!nv_loopback_test(dev)) {
4731 test->flags |= ETH_TEST_FL_FAILED;
4732 buffer[3] = 1;
4733 }
4734
4735 if (netif_running(dev)) {
4736 /* reinit driver view of the rx queue */
4737 set_bufsize(dev);
4738 if (nv_init_ring(dev)) {
4739 if (!np->in_shutdown)
4740 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4741 }
4742 /* reinit nic view of the rx queue */
4743 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4744 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4745 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4746 base + NvRegRingSizes);
4747 pci_push(base);
4748 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4749 pci_push(base);
4750 /* restart rx engine */
4751 nv_start_rx(dev);
4752 nv_start_tx(dev);
4753 netif_start_queue(dev);
4754 #ifdef CONFIG_FORCEDETH_NAPI
4755 napi_enable(&np->napi);
4756 #endif
4757 nv_enable_hw_interrupts(dev, np->irqmask);
4758 }
4759 }
4760 }
4761
4762 static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer)
4763 {
4764 switch (stringset) {
4765 case ETH_SS_STATS:
4766 memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str));
4767 break;
4768 case ETH_SS_TEST:
4769 memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str));
4770 break;
4771 }
4772 }
4773
4774 static const struct ethtool_ops ops = {
4775 .get_drvinfo = nv_get_drvinfo,
4776 .get_link = ethtool_op_get_link,
4777 .get_wol = nv_get_wol,
4778 .set_wol = nv_set_wol,
4779 .get_settings = nv_get_settings,
4780 .set_settings = nv_set_settings,
4781 .get_regs_len = nv_get_regs_len,
4782 .get_regs = nv_get_regs,
4783 .nway_reset = nv_nway_reset,
4784 .set_tso = nv_set_tso,
4785 .get_ringparam = nv_get_ringparam,
4786 .set_ringparam = nv_set_ringparam,
4787 .get_pauseparam = nv_get_pauseparam,
4788 .set_pauseparam = nv_set_pauseparam,
4789 .get_rx_csum = nv_get_rx_csum,
4790 .set_rx_csum = nv_set_rx_csum,
4791 .set_tx_csum = nv_set_tx_csum,
4792 .set_sg = nv_set_sg,
4793 .get_strings = nv_get_strings,
4794 .get_ethtool_stats = nv_get_ethtool_stats,
4795 .get_sset_count = nv_get_sset_count,
4796 .self_test = nv_self_test,
4797 };
4798
4799 static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4800 {
4801 struct fe_priv *np = get_nvpriv(dev);
4802
4803 spin_lock_irq(&np->lock);
4804
4805 /* save vlan group */
4806 np->vlangrp = grp;
4807
4808 if (grp) {
4809 /* enable vlan on MAC */
4810 np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS;
4811 } else {
4812 /* disable vlan on MAC */
4813 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
4814 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
4815 }
4816
4817 writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4818
4819 spin_unlock_irq(&np->lock);
4820 }
4821
4822 /* The mgmt unit and driver use a semaphore to access the phy during init */
4823 static int nv_mgmt_acquire_sema(struct net_device *dev)
4824 {
4825 u8 __iomem *base = get_hwbase(dev);
4826 int i;
4827 u32 tx_ctrl, mgmt_sema;
4828
4829 for (i = 0; i < 10; i++) {
4830 mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK;
4831 if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE)
4832 break;
4833 msleep(500);
4834 }
4835
4836 if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE)
4837 return 0;
4838
4839 for (i = 0; i < 2; i++) {
4840 tx_ctrl = readl(base + NvRegTransmitterControl);
4841 tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ;
4842 writel(tx_ctrl, base + NvRegTransmitterControl);
4843
4844 /* verify that semaphore was acquired */
4845 tx_ctrl = readl(base + NvRegTransmitterControl);
4846 if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) &&
4847 ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE))
4848 return 1;
4849 else
4850 udelay(50);
4851 }
4852
4853 return 0;
4854 }
4855
4856 static int nv_open(struct net_device *dev)
4857 {
4858 struct fe_priv *np = netdev_priv(dev);
4859 u8 __iomem *base = get_hwbase(dev);
4860 int ret = 1;
4861 int oom, i;
4862
4863 dprintk(KERN_DEBUG "nv_open: begin\n");
4864
4865 /* erase previous misconfiguration */
4866 if (np->driver_data & DEV_HAS_POWER_CNTRL)
4867 nv_mac_reset(dev);
4868 writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
4869 writel(0, base + NvRegMulticastAddrB);
4870 writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
4871 writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
4872 writel(0, base + NvRegPacketFilterFlags);
4873
4874 writel(0, base + NvRegTransmitterControl);
4875 writel(0, base + NvRegReceiverControl);
4876
4877 writel(0, base + NvRegAdapterControl);
4878
4879 if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)
4880 writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
4881
4882 /* initialize descriptor rings */
4883 set_bufsize(dev);
4884 oom = nv_init_ring(dev);
4885
4886 writel(0, base + NvRegLinkSpeed);
4887 writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
4888 nv_txrx_reset(dev);
4889 writel(0, base + NvRegUnknownSetupReg6);
4890
4891 np->in_shutdown = 0;
4892
4893 /* give hw rings */
4894 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4895 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4896 base + NvRegRingSizes);
4897
4898 writel(np->linkspeed, base + NvRegLinkSpeed);
4899 if (np->desc_ver == DESC_VER_1)
4900 writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark);
4901 else
4902 writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark);
4903 writel(np->txrxctl_bits, base + NvRegTxRxControl);
4904 writel(np->vlanctl_bits, base + NvRegVlanControl);
4905 pci_push(base);
4906 writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl);
4907 reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
4908 NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX,
4909 KERN_INFO "open: SetupReg5, Bit 31 remained off\n");
4910
4911 writel(0, base + NvRegMIIMask);
4912 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4913 writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
4914
4915 writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
4916 writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
4917 writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
4918 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4919
4920 writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus);
4921 get_random_bytes(&i, sizeof(i));
4922 writel(NVREG_RNDSEED_FORCE | (i&NVREG_RNDSEED_MASK), base + NvRegRandomSeed);
4923 writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral);
4924 writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral);
4925 if (poll_interval == -1) {
4926 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT)
4927 writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval);
4928 else
4929 writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
4930 }
4931 else
4932 writel(poll_interval & 0xFFFF, base + NvRegPollingInterval);
4933 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4934 writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
4935 base + NvRegAdapterControl);
4936 writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
4937 writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask);
4938 if (np->wolenabled)
4939 writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags);
4940
4941 i = readl(base + NvRegPowerState);
4942 if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0)
4943 writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
4944
4945 pci_push(base);
4946 udelay(10);
4947 writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
4948
4949 nv_disable_hw_interrupts(dev, np->irqmask);
4950 pci_push(base);
4951 writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
4952 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4953 pci_push(base);
4954
4955 if (nv_request_irq(dev, 0)) {
4956 goto out_drain;
4957 }
4958
4959 /* ask for interrupts */
4960 nv_enable_hw_interrupts(dev, np->irqmask);
4961
4962 spin_lock_irq(&np->lock);
4963 writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
4964 writel(0, base + NvRegMulticastAddrB);
4965 writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
4966 writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
4967 writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
4968 /* One manual link speed update: Interrupts are enabled, future link
4969 * speed changes cause interrupts and are handled by nv_link_irq().
4970 */
4971 {
4972 u32 miistat;
4973 miistat = readl(base + NvRegMIIStatus);
4974 writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
4975 dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat);
4976 }
4977 /* set linkspeed to invalid value, thus force nv_update_linkspeed
4978 * to init hw */
4979 np->linkspeed = 0;
4980 ret = nv_update_linkspeed(dev);
4981 nv_start_rx(dev);
4982 nv_start_tx(dev);
4983 netif_start_queue(dev);
4984 #ifdef CONFIG_FORCEDETH_NAPI
4985 napi_enable(&np->napi);
4986 #endif
4987
4988 if (ret) {
4989 netif_carrier_on(dev);
4990 } else {
4991 printk(KERN_INFO "%s: no link during initialization.\n", dev->name);
4992 netif_carrier_off(dev);
4993 }
4994 if (oom)
4995 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4996
4997 /* start statistics timer */
4998 if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2))
4999 mod_timer(&np->stats_poll, jiffies + STATS_INTERVAL);
5000
5001 spin_unlock_irq(&np->lock);
5002
5003 return 0;
5004 out_drain:
5005 drain_ring(dev);
5006 return ret;
5007 }
5008
5009 static int nv_close(struct net_device *dev)
5010 {
5011 struct fe_priv *np = netdev_priv(dev);
5012 u8 __iomem *base;
5013
5014 spin_lock_irq(&np->lock);
5015 np->in_shutdown = 1;
5016 spin_unlock_irq(&np->lock);
5017 #ifdef CONFIG_FORCEDETH_NAPI
5018 napi_disable(&np->napi);
5019 #endif
5020 synchronize_irq(np->pci_dev->irq);
5021
5022 del_timer_sync(&np->oom_kick);
5023 del_timer_sync(&np->nic_poll);
5024 del_timer_sync(&np->stats_poll);
5025
5026 netif_stop_queue(dev);
5027 spin_lock_irq(&np->lock);
5028 nv_stop_tx(dev);
5029 nv_stop_rx(dev);
5030 nv_txrx_reset(dev);
5031
5032 /* disable interrupts on the nic or we will lock up */
5033 base = get_hwbase(dev);
5034 nv_disable_hw_interrupts(dev, np->irqmask);
5035 pci_push(base);
5036 dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name);
5037
5038 spin_unlock_irq(&np->lock);
5039
5040 nv_free_irq(dev);
5041
5042 drain_ring(dev);
5043
5044 if (np->wolenabled) {
5045 writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
5046 nv_start_rx(dev);
5047 }
5048
5049 /* FIXME: power down nic */
5050
5051 return 0;
5052 }
5053
5054 static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
5055 {
5056 struct net_device *dev;
5057 struct fe_priv *np;
5058 unsigned long addr;
5059 u8 __iomem *base;
5060 int err, i;
5061 u32 powerstate, txreg;
5062 u32 phystate_orig = 0, phystate;
5063 int phyinitialized = 0;
5064 DECLARE_MAC_BUF(mac);
5065 static int printed_version;
5066
5067 if (!printed_version++)
5068 printk(KERN_INFO "%s: Reverse Engineered nForce ethernet"
5069 " driver. Version %s.\n", DRV_NAME, FORCEDETH_VERSION);
5070
5071 dev = alloc_etherdev(sizeof(struct fe_priv));
5072 err = -ENOMEM;
5073 if (!dev)
5074 goto out;
5075
5076 np = netdev_priv(dev);
5077 np->dev = dev;
5078 np->pci_dev = pci_dev;
5079 spin_lock_init(&np->lock);
5080 SET_NETDEV_DEV(dev, &pci_dev->dev);
5081
5082 init_timer(&np->oom_kick);
5083 np->oom_kick.data = (unsigned long) dev;
5084 np->oom_kick.function = &nv_do_rx_refill; /* timer handler */
5085 init_timer(&np->nic_poll);
5086 np->nic_poll.data = (unsigned long) dev;
5087 np->nic_poll.function = &nv_do_nic_poll; /* timer handler */
5088 init_timer(&np->stats_poll);
5089 np->stats_poll.data = (unsigned long) dev;
5090 np->stats_poll.function = &nv_do_stats_poll; /* timer handler */
5091
5092 err = pci_enable_device(pci_dev);
5093 if (err)
5094 goto out_free;
5095
5096 pci_set_master(pci_dev);
5097
5098 err = pci_request_regions(pci_dev, DRV_NAME);
5099 if (err < 0)
5100 goto out_disable;
5101
5102 if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V2))
5103 np->register_size = NV_PCI_REGSZ_VER3;
5104 else if (id->driver_data & DEV_HAS_STATISTICS_V1)
5105 np->register_size = NV_PCI_REGSZ_VER2;
5106 else
5107 np->register_size = NV_PCI_REGSZ_VER1;
5108
5109 err = -EINVAL;
5110 addr = 0;
5111 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
5112 dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n",
5113 pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i),
5114 pci_resource_len(pci_dev, i),
5115 pci_resource_flags(pci_dev, i));
5116 if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
5117 pci_resource_len(pci_dev, i) >= np->register_size) {
5118 addr = pci_resource_start(pci_dev, i);
5119 break;
5120 }
5121 }
5122 if (i == DEVICE_COUNT_RESOURCE) {
5123 dev_printk(KERN_INFO, &pci_dev->dev,
5124 "Couldn't find register window\n");
5125 goto out_relreg;
5126 }
5127
5128 /* copy of driver data */
5129 np->driver_data = id->driver_data;
5130
5131 /* handle different descriptor versions */
5132 if (id->driver_data & DEV_HAS_HIGH_DMA) {
5133 /* packet format 3: supports 40-bit addressing */
5134 np->desc_ver = DESC_VER_3;
5135 np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
5136 if (dma_64bit) {
5137 if (pci_set_dma_mask(pci_dev, DMA_39BIT_MASK))
5138 dev_printk(KERN_INFO, &pci_dev->dev,
5139 "64-bit DMA failed, using 32-bit addressing\n");
5140 else
5141 dev->features |= NETIF_F_HIGHDMA;
5142 if (pci_set_consistent_dma_mask(pci_dev, DMA_39BIT_MASK)) {
5143 dev_printk(KERN_INFO, &pci_dev->dev,
5144 "64-bit DMA (consistent) failed, using 32-bit ring buffers\n");
5145 }
5146 }
5147 } else if (id->driver_data & DEV_HAS_LARGEDESC) {
5148 /* packet format 2: supports jumbo frames */
5149 np->desc_ver = DESC_VER_2;
5150 np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
5151 } else {
5152 /* original packet format */
5153 np->desc_ver = DESC_VER_1;
5154 np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
5155 }
5156
5157 np->pkt_limit = NV_PKTLIMIT_1;
5158 if (id->driver_data & DEV_HAS_LARGEDESC)
5159 np->pkt_limit = NV_PKTLIMIT_2;
5160
5161 if (id->driver_data & DEV_HAS_CHECKSUM) {
5162 np->rx_csum = 1;
5163 np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
5164 dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG;
5165 dev->features |= NETIF_F_TSO;
5166 }
5167
5168 np->vlanctl_bits = 0;
5169 if (id->driver_data & DEV_HAS_VLAN) {
5170 np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
5171 dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
5172 dev->vlan_rx_register = nv_vlan_rx_register;
5173 }
5174
5175 np->msi_flags = 0;
5176 if ((id->driver_data & DEV_HAS_MSI) && msi) {
5177 np->msi_flags |= NV_MSI_CAPABLE;
5178 }
5179 if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
5180 np->msi_flags |= NV_MSI_X_CAPABLE;
5181 }
5182
5183 np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
5184 if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
5185 (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
5186 (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) {
5187 np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ;
5188 }
5189
5190
5191 err = -ENOMEM;
5192 np->base = ioremap(addr, np->register_size);
5193 if (!np->base)
5194 goto out_relreg;
5195 dev->base_addr = (unsigned long)np->base;
5196
5197 dev->irq = pci_dev->irq;
5198
5199 np->rx_ring_size = RX_RING_DEFAULT;
5200 np->tx_ring_size = TX_RING_DEFAULT;
5201
5202 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
5203 np->rx_ring.orig = pci_alloc_consistent(pci_dev,
5204 sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
5205 &np->ring_addr);
5206 if (!np->rx_ring.orig)
5207 goto out_unmap;
5208 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
5209 } else {
5210 np->rx_ring.ex = pci_alloc_consistent(pci_dev,
5211 sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
5212 &np->ring_addr);
5213 if (!np->rx_ring.ex)
5214 goto out_unmap;
5215 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
5216 }
5217 np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5218 np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5219 if (!np->rx_skb || !np->tx_skb)
5220 goto out_freering;
5221
5222 dev->open = nv_open;
5223 dev->stop = nv_close;
5224 if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
5225 dev->hard_start_xmit = nv_start_xmit;
5226 else
5227 dev->hard_start_xmit = nv_start_xmit_optimized;
5228 dev->get_stats = nv_get_stats;
5229 dev->change_mtu = nv_change_mtu;
5230 dev->set_mac_address = nv_set_mac_address;
5231 dev->set_multicast_list = nv_set_multicast;
5232 #ifdef CONFIG_NET_POLL_CONTROLLER
5233 dev->poll_controller = nv_poll_controller;
5234 #endif
5235 #ifdef CONFIG_FORCEDETH_NAPI
5236 netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
5237 #endif
5238 SET_ETHTOOL_OPS(dev, &ops);
5239 dev->tx_timeout = nv_tx_timeout;
5240 dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
5241
5242 pci_set_drvdata(pci_dev, dev);
5243
5244 /* read the mac address */
5245 base = get_hwbase(dev);
5246 np->orig_mac[0] = readl(base + NvRegMacAddrA);
5247 np->orig_mac[1] = readl(base + NvRegMacAddrB);
5248
5249 /* check the workaround bit for correct mac address order */
5250 txreg = readl(base + NvRegTransmitPoll);
5251 if ((txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) ||
5252 (id->driver_data & DEV_HAS_CORRECT_MACADDR)) {
5253 /* mac address is already in correct order */
5254 dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff;
5255 dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff;
5256 dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
5257 dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
5258 dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff;
5259 dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff;
5260 } else {
5261 /* need to reverse mac address to correct order */
5262 dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff;
5263 dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff;
5264 dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
5265 dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
5266 dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff;
5267 dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff;
5268 writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
5269 }
5270 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
5271
5272 if (!is_valid_ether_addr(dev->perm_addr)) {
5273 /*
5274 * Bad mac address. At least one bios sets the mac address
5275 * to 01:23:45:67:89:ab
5276 */
5277 dev_printk(KERN_ERR, &pci_dev->dev,
5278 "Invalid Mac address detected: %s\n",
5279 print_mac(mac, dev->dev_addr));
5280 dev_printk(KERN_ERR, &pci_dev->dev,
5281 "Please complain to your hardware vendor. Switching to a random MAC.\n");
5282 dev->dev_addr[0] = 0x00;
5283 dev->dev_addr[1] = 0x00;
5284 dev->dev_addr[2] = 0x6c;
5285 get_random_bytes(&dev->dev_addr[3], 3);
5286 }
5287
5288 dprintk(KERN_DEBUG "%s: MAC Address %s\n",
5289 pci_name(pci_dev), print_mac(mac, dev->dev_addr));
5290
5291 /* set mac address */
5292 nv_copy_mac_to_hw(dev);
5293
5294 /* disable WOL */
5295 writel(0, base + NvRegWakeUpFlags);
5296 np->wolenabled = 0;
5297
5298 if (id->driver_data & DEV_HAS_POWER_CNTRL) {
5299
5300 /* take phy and nic out of low power mode */
5301 powerstate = readl(base + NvRegPowerState2);
5302 powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
5303 if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
5304 id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) &&
5305 pci_dev->revision >= 0xA3)
5306 powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
5307 writel(powerstate, base + NvRegPowerState2);
5308 }
5309
5310 if (np->desc_ver == DESC_VER_1) {
5311 np->tx_flags = NV_TX_VALID;
5312 } else {
5313 np->tx_flags = NV_TX2_VALID;
5314 }
5315 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) {
5316 np->irqmask = NVREG_IRQMASK_THROUGHPUT;
5317 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5318 np->msi_flags |= 0x0003;
5319 } else {
5320 np->irqmask = NVREG_IRQMASK_CPU;
5321 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5322 np->msi_flags |= 0x0001;
5323 }
5324
5325 if (id->driver_data & DEV_NEED_TIMERIRQ)
5326 np->irqmask |= NVREG_IRQ_TIMER;
5327 if (id->driver_data & DEV_NEED_LINKTIMER) {
5328 dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev));
5329 np->need_linktimer = 1;
5330 np->link_timeout = jiffies + LINK_TIMEOUT;
5331 } else {
5332 dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev));
5333 np->need_linktimer = 0;
5334 }
5335
5336 /* clear phy state and temporarily halt phy interrupts */
5337 writel(0, base + NvRegMIIMask);
5338 phystate = readl(base + NvRegAdapterControl);
5339 if (phystate & NVREG_ADAPTCTL_RUNNING) {
5340 phystate_orig = 1;
5341 phystate &= ~NVREG_ADAPTCTL_RUNNING;
5342 writel(phystate, base + NvRegAdapterControl);
5343 }
5344 writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
5345
5346 if (id->driver_data & DEV_HAS_MGMT_UNIT) {
5347 /* management unit running on the mac? */
5348 if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) {
5349 np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
5350 dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use);
5351 if (nv_mgmt_acquire_sema(dev)) {
5352 /* management unit setup the phy already? */
5353 if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
5354 NVREG_XMITCTL_SYNC_PHY_INIT) {
5355 /* phy is inited by mgmt unit */
5356 phyinitialized = 1;
5357 dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
5358 } else {
5359 /* we need to init the phy */
5360 }
5361 }
5362 }
5363 }
5364
5365 /* find a suitable phy */
5366 for (i = 1; i <= 32; i++) {
5367 int id1, id2;
5368 int phyaddr = i & 0x1F;
5369
5370 spin_lock_irq(&np->lock);
5371 id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ);
5372 spin_unlock_irq(&np->lock);
5373 if (id1 < 0 || id1 == 0xffff)
5374 continue;
5375 spin_lock_irq(&np->lock);
5376 id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ);
5377 spin_unlock_irq(&np->lock);
5378 if (id2 < 0 || id2 == 0xffff)
5379 continue;
5380
5381 np->phy_model = id2 & PHYID2_MODEL_MASK;
5382 id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
5383 id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
5384 dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
5385 pci_name(pci_dev), id1, id2, phyaddr);
5386 np->phyaddr = phyaddr;
5387 np->phy_oui = id1 | id2;
5388 break;
5389 }
5390 if (i == 33) {
5391 dev_printk(KERN_INFO, &pci_dev->dev,
5392 "open: Could not find a valid PHY.\n");
5393 goto out_error;
5394 }
5395
5396 if (!phyinitialized) {
5397 /* reset it */
5398 phy_init(dev);
5399 } else {
5400 /* see if it is a gigabit phy */
5401 u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
5402 if (mii_status & PHY_GIGABIT) {
5403 np->gigabit = PHY_GIGABIT;
5404 }
5405 }
5406
5407 /* set default link speed settings */
5408 np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
5409 np->duplex = 0;
5410 np->autoneg = 1;
5411
5412 err = register_netdev(dev);
5413 if (err) {
5414 dev_printk(KERN_INFO, &pci_dev->dev,
5415 "unable to register netdev: %d\n", err);
5416 goto out_error;
5417 }
5418
5419 dev_printk(KERN_INFO, &pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, "
5420 "addr %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
5421 dev->name,
5422 np->phy_oui,
5423 np->phyaddr,
5424 dev->dev_addr[0],
5425 dev->dev_addr[1],
5426 dev->dev_addr[2],
5427 dev->dev_addr[3],
5428 dev->dev_addr[4],
5429 dev->dev_addr[5]);
5430
5431 dev_printk(KERN_INFO, &pci_dev->dev, "%s%s%s%s%s%s%s%s%s%sdesc-v%u\n",
5432 dev->features & NETIF_F_HIGHDMA ? "highdma " : "",
5433 dev->features & (NETIF_F_HW_CSUM | NETIF_F_SG) ?
5434 "csum " : "",
5435 dev->features & (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX) ?
5436 "vlan " : "",
5437 id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "",
5438 id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "",
5439 id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "",
5440 np->gigabit == PHY_GIGABIT ? "gbit " : "",
5441 np->need_linktimer ? "lnktim " : "",
5442 np->msi_flags & NV_MSI_CAPABLE ? "msi " : "",
5443 np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "",
5444 np->desc_ver);
5445
5446 return 0;
5447
5448 out_error:
5449 if (phystate_orig)
5450 writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
5451 pci_set_drvdata(pci_dev, NULL);
5452 out_freering:
5453 free_rings(dev);
5454 out_unmap:
5455 iounmap(get_hwbase(dev));
5456 out_relreg:
5457 pci_release_regions(pci_dev);
5458 out_disable:
5459 pci_disable_device(pci_dev);
5460 out_free:
5461 free_netdev(dev);
5462 out:
5463 return err;
5464 }
5465
5466 static void __devexit nv_remove(struct pci_dev *pci_dev)
5467 {
5468 struct net_device *dev = pci_get_drvdata(pci_dev);
5469 struct fe_priv *np = netdev_priv(dev);
5470 u8 __iomem *base = get_hwbase(dev);
5471
5472 unregister_netdev(dev);
5473
5474 /* special op: write back the misordered MAC address - otherwise
5475 * the next nv_probe would see a wrong address.
5476 */
5477 writel(np->orig_mac[0], base + NvRegMacAddrA);
5478 writel(np->orig_mac[1], base + NvRegMacAddrB);
5479 writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
5480 base + NvRegTransmitPoll);
5481
5482 /* free all structures */
5483 free_rings(dev);
5484 iounmap(get_hwbase(dev));
5485 pci_release_regions(pci_dev);
5486 pci_disable_device(pci_dev);
5487 free_netdev(dev);
5488 pci_set_drvdata(pci_dev, NULL);
5489 }
5490
5491 #ifdef CONFIG_PM
5492 static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
5493 {
5494 struct net_device *dev = pci_get_drvdata(pdev);
5495 struct fe_priv *np = netdev_priv(dev);
5496
5497 if (!netif_running(dev))
5498 goto out;
5499
5500 netif_device_detach(dev);
5501
5502 // Gross.
5503 nv_close(dev);
5504
5505 pci_save_state(pdev);
5506 pci_enable_wake(pdev, pci_choose_state(pdev, state), np->wolenabled);
5507 pci_set_power_state(pdev, pci_choose_state(pdev, state));
5508 out:
5509 return 0;
5510 }
5511
5512 static int nv_resume(struct pci_dev *pdev)
5513 {
5514 struct net_device *dev = pci_get_drvdata(pdev);
5515 int rc = 0;
5516
5517 if (!netif_running(dev))
5518 goto out;
5519
5520 netif_device_attach(dev);
5521
5522 pci_set_power_state(pdev, PCI_D0);
5523 pci_restore_state(pdev);
5524 pci_enable_wake(pdev, PCI_D0, 0);
5525
5526 rc = nv_open(dev);
5527 out:
5528 return rc;
5529 }
5530 #else
5531 #define nv_suspend NULL
5532 #define nv_resume NULL
5533 #endif /* CONFIG_PM */
5534
5535 static struct pci_device_id pci_tbl[] = {
5536 { /* nForce Ethernet Controller */
5537 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_1),
5538 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5539 },
5540 { /* nForce2 Ethernet Controller */
5541 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_2),
5542 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5543 },
5544 { /* nForce3 Ethernet Controller */
5545 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_3),
5546 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
5547 },
5548 { /* nForce3 Ethernet Controller */
5549 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4),
5550 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5551 },
5552 { /* nForce3 Ethernet Controller */
5553 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5),
5554 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5555 },
5556 { /* nForce3 Ethernet Controller */
5557 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6),
5558 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5559 },
5560 { /* nForce3 Ethernet Controller */
5561 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7),
5562 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
5563 },
5564 { /* CK804 Ethernet Controller */
5565 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8),
5566 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5567 },
5568 { /* CK804 Ethernet Controller */
5569 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9),
5570 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5571 },
5572 { /* MCP04 Ethernet Controller */
5573 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
5574 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5575 },
5576 { /* MCP04 Ethernet Controller */
5577 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
5578 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1,
5579 },
5580 { /* MCP51 Ethernet Controller */
5581 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
5582 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
5583 },
5584 { /* MCP51 Ethernet Controller */
5585 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
5586 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
5587 },
5588 { /* MCP55 Ethernet Controller */
5589 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
5590 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5591 },
5592 { /* MCP55 Ethernet Controller */
5593 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
5594 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
5595 },
5596 { /* MCP61 Ethernet Controller */
5597 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16),
5598 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5599 },
5600 { /* MCP61 Ethernet Controller */
5601 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17),
5602 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5603 },
5604 { /* MCP61 Ethernet Controller */
5605 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18),
5606 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5607 },
5608 { /* MCP61 Ethernet Controller */
5609 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19),
5610 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5611 },
5612 { /* MCP65 Ethernet Controller */
5613 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20),
5614 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5615 },
5616 { /* MCP65 Ethernet Controller */
5617 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21),
5618 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5619 },
5620 { /* MCP65 Ethernet Controller */
5621 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22),
5622 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5623 },
5624 { /* MCP65 Ethernet Controller */
5625 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23),
5626 .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_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5627 },
5628 { /* MCP67 Ethernet Controller */
5629 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24),
5630 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5631 },
5632 { /* MCP67 Ethernet Controller */
5633 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_25),
5634 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5635 },
5636 { /* MCP67 Ethernet Controller */
5637 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_26),
5638 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5639 },
5640 { /* MCP67 Ethernet Controller */
5641 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_27),
5642 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
5643 },
5644 { /* MCP73 Ethernet Controller */
5645 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_28),
5646 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5647 },
5648 { /* MCP73 Ethernet Controller */
5649 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_29),
5650 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5651 },
5652 { /* MCP73 Ethernet Controller */
5653 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_30),
5654 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5655 },
5656 { /* MCP73 Ethernet Controller */
5657 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_31),
5658 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5659 },
5660 { /* MCP77 Ethernet Controller */
5661 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32),
5662 .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_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5663 },
5664 { /* MCP77 Ethernet Controller */
5665 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33),
5666 .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_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5667 },
5668 { /* MCP77 Ethernet Controller */
5669 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34),
5670 .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_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5671 },
5672 { /* MCP77 Ethernet Controller */
5673 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35),
5674 .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_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5675 },
5676 { /* MCP79 Ethernet Controller */
5677 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36),
5678 .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_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5679 },
5680 { /* MCP79 Ethernet Controller */
5681 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37),
5682 .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_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5683 },
5684 { /* MCP79 Ethernet Controller */
5685 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38),
5686 .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_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5687 },
5688 { /* MCP79 Ethernet Controller */
5689 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39),
5690 .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_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX,
5691 },
5692 {0,},
5693 };
5694
5695 static struct pci_driver driver = {
5696 .name = DRV_NAME,
5697 .id_table = pci_tbl,
5698 .probe = nv_probe,
5699 .remove = __devexit_p(nv_remove),
5700 .suspend = nv_suspend,
5701 .resume = nv_resume,
5702 };
5703
5704 static int __init init_nic(void)
5705 {
5706 return pci_register_driver(&driver);
5707 }
5708
5709 static void __exit exit_nic(void)
5710 {
5711 pci_unregister_driver(&driver);
5712 }
5713
5714 module_param(max_interrupt_work, int, 0);
5715 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
5716 module_param(optimization_mode, int, 0);
5717 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.");
5718 module_param(poll_interval, int, 0);
5719 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.");
5720 module_param(msi, int, 0);
5721 MODULE_PARM_DESC(msi, "MSI interrupts are enabled by setting to 1 and disabled by setting to 0.");
5722 module_param(msix, int, 0);
5723 MODULE_PARM_DESC(msix, "MSIX interrupts are enabled by setting to 1 and disabled by setting to 0.");
5724 module_param(dma_64bit, int, 0);
5725 MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0.");
5726
5727 MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
5728 MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
5729 MODULE_LICENSE("GPL");
5730
5731 MODULE_DEVICE_TABLE(pci, pci_tbl);
5732
5733 module_init(init_nic);
5734 module_exit(exit_nic);
Linux kernel - Deliverables
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