Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * forcedeth: Ethernet driver for NVIDIA nForce media access controllers. | |
3 | * | |
4 | * Note: This driver is a cleanroom reimplementation based on reverse | |
5 | * engineered documentation written by Carl-Daniel Hailfinger | |
87046e50 | 6 | * and Andrew de Quincey. |
1da177e4 LT |
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 | * | |
1836098f | 12 | * Copyright (C) 2003,4,5 Manfred Spraul |
1da177e4 LT |
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) | |
f1405d32 | 16 | * Copyright (c) 2004,2005,2006,2007,2008,2009 NVIDIA Corporation |
1da177e4 LT |
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 | * | |
1da177e4 LT |
32 | * Known bugs: |
33 | * We suspect that on some hardware no TX done interrupts are generated. | |
34 | * This means recovery from netif_stop_queue only happens if the hw timer | |
35 | * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT) | |
36 | * and the timer is active in the IRQMask, or if a rx packet arrives by chance. | |
37 | * If your hardware reliably generates tx done interrupts, then you can remove | |
38 | * DEV_NEED_TIMERIRQ from the driver_data flags. | |
39 | * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few | |
40 | * superfluous timer interrupts from the nic. | |
41 | */ | |
3e1a3ce2 | 42 | #define FORCEDETH_VERSION "0.64" |
1da177e4 LT |
43 | #define DRV_NAME "forcedeth" |
44 | ||
45 | #include <linux/module.h> | |
46 | #include <linux/types.h> | |
47 | #include <linux/pci.h> | |
48 | #include <linux/interrupt.h> | |
49 | #include <linux/netdevice.h> | |
50 | #include <linux/etherdevice.h> | |
51 | #include <linux/delay.h> | |
d43c36dc | 52 | #include <linux/sched.h> |
1da177e4 LT |
53 | #include <linux/spinlock.h> |
54 | #include <linux/ethtool.h> | |
55 | #include <linux/timer.h> | |
56 | #include <linux/skbuff.h> | |
57 | #include <linux/mii.h> | |
58 | #include <linux/random.h> | |
59 | #include <linux/init.h> | |
22c6d143 | 60 | #include <linux/if_vlan.h> |
910638ae | 61 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 62 | #include <linux/slab.h> |
1da177e4 LT |
63 | |
64 | #include <asm/irq.h> | |
65 | #include <asm/io.h> | |
66 | #include <asm/uaccess.h> | |
67 | #include <asm/system.h> | |
68 | ||
69 | #if 0 | |
70 | #define dprintk printk | |
71 | #else | |
72 | #define dprintk(x...) do { } while (0) | |
73 | #endif | |
74 | ||
bea3348e SH |
75 | #define TX_WORK_PER_LOOP 64 |
76 | #define RX_WORK_PER_LOOP 64 | |
1da177e4 LT |
77 | |
78 | /* | |
79 | * Hardware access: | |
80 | */ | |
81 | ||
3c2e1c11 AA |
82 | #define DEV_NEED_TIMERIRQ 0x0000001 /* set the timer irq flag in the irq mask */ |
83 | #define DEV_NEED_LINKTIMER 0x0000002 /* poll link settings. Relies on the timer irq */ | |
84 | #define DEV_HAS_LARGEDESC 0x0000004 /* device supports jumbo frames and needs packet format 2 */ | |
85 | #define DEV_HAS_HIGH_DMA 0x0000008 /* device supports 64bit dma */ | |
86 | #define DEV_HAS_CHECKSUM 0x0000010 /* device supports tx and rx checksum offloads */ | |
87 | #define DEV_HAS_VLAN 0x0000020 /* device supports vlan tagging and striping */ | |
88 | #define DEV_HAS_MSI 0x0000040 /* device supports MSI */ | |
89 | #define DEV_HAS_MSI_X 0x0000080 /* device supports MSI-X */ | |
90 | #define DEV_HAS_POWER_CNTRL 0x0000100 /* device supports power savings */ | |
91 | #define DEV_HAS_STATISTICS_V1 0x0000200 /* device supports hw statistics version 1 */ | |
92 | #define DEV_HAS_STATISTICS_V2 0x0000600 /* device supports hw statistics version 2 */ | |
93 | #define DEV_HAS_STATISTICS_V3 0x0000e00 /* device supports hw statistics version 3 */ | |
94 | #define DEV_HAS_TEST_EXTENDED 0x0001000 /* device supports extended diagnostic test */ | |
95 | #define DEV_HAS_MGMT_UNIT 0x0002000 /* device supports management unit */ | |
96 | #define DEV_HAS_CORRECT_MACADDR 0x0004000 /* device supports correct mac address order */ | |
97 | #define DEV_HAS_COLLISION_FIX 0x0008000 /* device supports tx collision fix */ | |
98 | #define DEV_HAS_PAUSEFRAME_TX_V1 0x0010000 /* device supports tx pause frames version 1 */ | |
99 | #define DEV_HAS_PAUSEFRAME_TX_V2 0x0020000 /* device supports tx pause frames version 2 */ | |
100 | #define DEV_HAS_PAUSEFRAME_TX_V3 0x0040000 /* device supports tx pause frames version 3 */ | |
101 | #define DEV_NEED_TX_LIMIT 0x0080000 /* device needs to limit tx */ | |
102 | #define DEV_NEED_TX_LIMIT2 0x0180000 /* device needs to limit tx, expect for some revs */ | |
103 | #define DEV_HAS_GEAR_MODE 0x0200000 /* device supports gear mode */ | |
104 | #define DEV_NEED_PHY_INIT_FIX 0x0400000 /* device needs specific phy workaround */ | |
105 | #define DEV_NEED_LOW_POWER_FIX 0x0800000 /* device needs special power up workaround */ | |
106 | #define DEV_NEED_MSI_FIX 0x1000000 /* device needs msi workaround */ | |
1da177e4 LT |
107 | |
108 | enum { | |
109 | NvRegIrqStatus = 0x000, | |
110 | #define NVREG_IRQSTAT_MIIEVENT 0x040 | |
daa91a9d | 111 | #define NVREG_IRQSTAT_MASK 0x83ff |
1da177e4 LT |
112 | NvRegIrqMask = 0x004, |
113 | #define NVREG_IRQ_RX_ERROR 0x0001 | |
114 | #define NVREG_IRQ_RX 0x0002 | |
115 | #define NVREG_IRQ_RX_NOBUF 0x0004 | |
116 | #define NVREG_IRQ_TX_ERR 0x0008 | |
c2dba06d | 117 | #define NVREG_IRQ_TX_OK 0x0010 |
1da177e4 LT |
118 | #define NVREG_IRQ_TIMER 0x0020 |
119 | #define NVREG_IRQ_LINK 0x0040 | |
d33a73c8 AA |
120 | #define NVREG_IRQ_RX_FORCED 0x0080 |
121 | #define NVREG_IRQ_TX_FORCED 0x0100 | |
daa91a9d | 122 | #define NVREG_IRQ_RECOVER_ERROR 0x8200 |
a971c324 | 123 | #define NVREG_IRQMASK_THROUGHPUT 0x00df |
096a458c | 124 | #define NVREG_IRQMASK_CPU 0x0060 |
d33a73c8 AA |
125 | #define NVREG_IRQ_TX_ALL (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED) |
126 | #define NVREG_IRQ_RX_ALL (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED) | |
c5cf9101 | 127 | #define NVREG_IRQ_OTHER (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR) |
c2dba06d | 128 | |
1da177e4 LT |
129 | NvRegUnknownSetupReg6 = 0x008, |
130 | #define NVREG_UNKSETUP6_VAL 3 | |
131 | ||
132 | /* | |
133 | * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic | |
134 | * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms | |
135 | */ | |
136 | NvRegPollingInterval = 0x00c, | |
6cef67a0 | 137 | #define NVREG_POLL_DEFAULT_THROUGHPUT 65535 /* backup tx cleanup if loop max reached */ |
a971c324 | 138 | #define NVREG_POLL_DEFAULT_CPU 13 |
d33a73c8 AA |
139 | NvRegMSIMap0 = 0x020, |
140 | NvRegMSIMap1 = 0x024, | |
141 | NvRegMSIIrqMask = 0x030, | |
142 | #define NVREG_MSI_VECTOR_0_ENABLED 0x01 | |
1da177e4 | 143 | NvRegMisc1 = 0x080, |
eb91f61b | 144 | #define NVREG_MISC1_PAUSE_TX 0x01 |
1da177e4 LT |
145 | #define NVREG_MISC1_HD 0x02 |
146 | #define NVREG_MISC1_FORCE 0x3b0f3c | |
147 | ||
0a62677b | 148 | NvRegMacReset = 0x34, |
86a0f043 | 149 | #define NVREG_MAC_RESET_ASSERT 0x0F3 |
1da177e4 LT |
150 | NvRegTransmitterControl = 0x084, |
151 | #define NVREG_XMITCTL_START 0x01 | |
7e680c22 AA |
152 | #define NVREG_XMITCTL_MGMT_ST 0x40000000 |
153 | #define NVREG_XMITCTL_SYNC_MASK 0x000f0000 | |
154 | #define NVREG_XMITCTL_SYNC_NOT_READY 0x0 | |
155 | #define NVREG_XMITCTL_SYNC_PHY_INIT 0x00040000 | |
156 | #define NVREG_XMITCTL_MGMT_SEMA_MASK 0x00000f00 | |
157 | #define NVREG_XMITCTL_MGMT_SEMA_FREE 0x0 | |
158 | #define NVREG_XMITCTL_HOST_SEMA_MASK 0x0000f000 | |
159 | #define NVREG_XMITCTL_HOST_SEMA_ACQ 0x0000f000 | |
160 | #define NVREG_XMITCTL_HOST_LOADED 0x00004000 | |
f35723ec | 161 | #define NVREG_XMITCTL_TX_PATH_EN 0x01000000 |
cac1c52c AA |
162 | #define NVREG_XMITCTL_DATA_START 0x00100000 |
163 | #define NVREG_XMITCTL_DATA_READY 0x00010000 | |
164 | #define NVREG_XMITCTL_DATA_ERROR 0x00020000 | |
1da177e4 LT |
165 | NvRegTransmitterStatus = 0x088, |
166 | #define NVREG_XMITSTAT_BUSY 0x01 | |
167 | ||
168 | NvRegPacketFilterFlags = 0x8c, | |
eb91f61b AA |
169 | #define NVREG_PFF_PAUSE_RX 0x08 |
170 | #define NVREG_PFF_ALWAYS 0x7F0000 | |
1da177e4 LT |
171 | #define NVREG_PFF_PROMISC 0x80 |
172 | #define NVREG_PFF_MYADDR 0x20 | |
9589c77a | 173 | #define NVREG_PFF_LOOPBACK 0x10 |
1da177e4 LT |
174 | |
175 | NvRegOffloadConfig = 0x90, | |
176 | #define NVREG_OFFLOAD_HOMEPHY 0x601 | |
177 | #define NVREG_OFFLOAD_NORMAL RX_NIC_BUFSIZE | |
178 | NvRegReceiverControl = 0x094, | |
179 | #define NVREG_RCVCTL_START 0x01 | |
f35723ec | 180 | #define NVREG_RCVCTL_RX_PATH_EN 0x01000000 |
1da177e4 LT |
181 | NvRegReceiverStatus = 0x98, |
182 | #define NVREG_RCVSTAT_BUSY 0x01 | |
183 | ||
a433686c AA |
184 | NvRegSlotTime = 0x9c, |
185 | #define NVREG_SLOTTIME_LEGBF_ENABLED 0x80000000 | |
186 | #define NVREG_SLOTTIME_10_100_FULL 0x00007f00 | |
187 | #define NVREG_SLOTTIME_1000_FULL 0x0003ff00 | |
188 | #define NVREG_SLOTTIME_HALF 0x0000ff00 | |
189 | #define NVREG_SLOTTIME_DEFAULT 0x00007f00 | |
190 | #define NVREG_SLOTTIME_MASK 0x000000ff | |
1da177e4 | 191 | |
9744e218 | 192 | NvRegTxDeferral = 0xA0, |
fd9b558c AA |
193 | #define NVREG_TX_DEFERRAL_DEFAULT 0x15050f |
194 | #define NVREG_TX_DEFERRAL_RGMII_10_100 0x16070f | |
195 | #define NVREG_TX_DEFERRAL_RGMII_1000 0x14050f | |
196 | #define NVREG_TX_DEFERRAL_RGMII_STRETCH_10 0x16190f | |
197 | #define NVREG_TX_DEFERRAL_RGMII_STRETCH_100 0x16300f | |
198 | #define NVREG_TX_DEFERRAL_MII_STRETCH 0x152000 | |
9744e218 AA |
199 | NvRegRxDeferral = 0xA4, |
200 | #define NVREG_RX_DEFERRAL_DEFAULT 0x16 | |
1da177e4 LT |
201 | NvRegMacAddrA = 0xA8, |
202 | NvRegMacAddrB = 0xAC, | |
203 | NvRegMulticastAddrA = 0xB0, | |
204 | #define NVREG_MCASTADDRA_FORCE 0x01 | |
205 | NvRegMulticastAddrB = 0xB4, | |
206 | NvRegMulticastMaskA = 0xB8, | |
bb9a4fd1 | 207 | #define NVREG_MCASTMASKA_NONE 0xffffffff |
1da177e4 | 208 | NvRegMulticastMaskB = 0xBC, |
bb9a4fd1 | 209 | #define NVREG_MCASTMASKB_NONE 0xffff |
1da177e4 LT |
210 | |
211 | NvRegPhyInterface = 0xC0, | |
212 | #define PHY_RGMII 0x10000000 | |
a433686c AA |
213 | NvRegBackOffControl = 0xC4, |
214 | #define NVREG_BKOFFCTRL_DEFAULT 0x70000000 | |
215 | #define NVREG_BKOFFCTRL_SEED_MASK 0x000003ff | |
216 | #define NVREG_BKOFFCTRL_SELECT 24 | |
217 | #define NVREG_BKOFFCTRL_GEAR 12 | |
1da177e4 LT |
218 | |
219 | NvRegTxRingPhysAddr = 0x100, | |
220 | NvRegRxRingPhysAddr = 0x104, | |
221 | NvRegRingSizes = 0x108, | |
222 | #define NVREG_RINGSZ_TXSHIFT 0 | |
223 | #define NVREG_RINGSZ_RXSHIFT 16 | |
5070d340 AA |
224 | NvRegTransmitPoll = 0x10c, |
225 | #define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000 | |
1da177e4 LT |
226 | NvRegLinkSpeed = 0x110, |
227 | #define NVREG_LINKSPEED_FORCE 0x10000 | |
228 | #define NVREG_LINKSPEED_10 1000 | |
229 | #define NVREG_LINKSPEED_100 100 | |
230 | #define NVREG_LINKSPEED_1000 50 | |
231 | #define NVREG_LINKSPEED_MASK (0xFFF) | |
232 | NvRegUnknownSetupReg5 = 0x130, | |
233 | #define NVREG_UNKSETUP5_BIT31 (1<<31) | |
95d161cb AA |
234 | NvRegTxWatermark = 0x13c, |
235 | #define NVREG_TX_WM_DESC1_DEFAULT 0x0200010 | |
236 | #define NVREG_TX_WM_DESC2_3_DEFAULT 0x1e08000 | |
237 | #define NVREG_TX_WM_DESC2_3_1000 0xfe08000 | |
1da177e4 LT |
238 | NvRegTxRxControl = 0x144, |
239 | #define NVREG_TXRXCTL_KICK 0x0001 | |
240 | #define NVREG_TXRXCTL_BIT1 0x0002 | |
241 | #define NVREG_TXRXCTL_BIT2 0x0004 | |
242 | #define NVREG_TXRXCTL_IDLE 0x0008 | |
243 | #define NVREG_TXRXCTL_RESET 0x0010 | |
244 | #define NVREG_TXRXCTL_RXCHECK 0x0400 | |
8a4ae7f2 | 245 | #define NVREG_TXRXCTL_DESC_1 0 |
d2f78412 AA |
246 | #define NVREG_TXRXCTL_DESC_2 0x002100 |
247 | #define NVREG_TXRXCTL_DESC_3 0xc02200 | |
ee407b02 AA |
248 | #define NVREG_TXRXCTL_VLANSTRIP 0x00040 |
249 | #define NVREG_TXRXCTL_VLANINS 0x00080 | |
0832b25a AA |
250 | NvRegTxRingPhysAddrHigh = 0x148, |
251 | NvRegRxRingPhysAddrHigh = 0x14C, | |
eb91f61b | 252 | NvRegTxPauseFrame = 0x170, |
5289b4c4 AA |
253 | #define NVREG_TX_PAUSEFRAME_DISABLE 0x0fff0080 |
254 | #define NVREG_TX_PAUSEFRAME_ENABLE_V1 0x01800010 | |
255 | #define NVREG_TX_PAUSEFRAME_ENABLE_V2 0x056003f0 | |
256 | #define NVREG_TX_PAUSEFRAME_ENABLE_V3 0x09f00880 | |
9a33e883 AA |
257 | NvRegTxPauseFrameLimit = 0x174, |
258 | #define NVREG_TX_PAUSEFRAMELIMIT_ENABLE 0x00010000 | |
1da177e4 LT |
259 | NvRegMIIStatus = 0x180, |
260 | #define NVREG_MIISTAT_ERROR 0x0001 | |
261 | #define NVREG_MIISTAT_LINKCHANGE 0x0008 | |
eb798428 AA |
262 | #define NVREG_MIISTAT_MASK_RW 0x0007 |
263 | #define NVREG_MIISTAT_MASK_ALL 0x000f | |
7e680c22 AA |
264 | NvRegMIIMask = 0x184, |
265 | #define NVREG_MII_LINKCHANGE 0x0008 | |
1da177e4 LT |
266 | |
267 | NvRegAdapterControl = 0x188, | |
268 | #define NVREG_ADAPTCTL_START 0x02 | |
269 | #define NVREG_ADAPTCTL_LINKUP 0x04 | |
270 | #define NVREG_ADAPTCTL_PHYVALID 0x40000 | |
271 | #define NVREG_ADAPTCTL_RUNNING 0x100000 | |
272 | #define NVREG_ADAPTCTL_PHYSHIFT 24 | |
273 | NvRegMIISpeed = 0x18c, | |
274 | #define NVREG_MIISPEED_BIT8 (1<<8) | |
275 | #define NVREG_MIIDELAY 5 | |
276 | NvRegMIIControl = 0x190, | |
277 | #define NVREG_MIICTL_INUSE 0x08000 | |
278 | #define NVREG_MIICTL_WRITE 0x00400 | |
279 | #define NVREG_MIICTL_ADDRSHIFT 5 | |
280 | NvRegMIIData = 0x194, | |
9c662435 AA |
281 | NvRegTxUnicast = 0x1a0, |
282 | NvRegTxMulticast = 0x1a4, | |
283 | NvRegTxBroadcast = 0x1a8, | |
1da177e4 LT |
284 | NvRegWakeUpFlags = 0x200, |
285 | #define NVREG_WAKEUPFLAGS_VAL 0x7770 | |
286 | #define NVREG_WAKEUPFLAGS_BUSYSHIFT 24 | |
287 | #define NVREG_WAKEUPFLAGS_ENABLESHIFT 16 | |
288 | #define NVREG_WAKEUPFLAGS_D3SHIFT 12 | |
289 | #define NVREG_WAKEUPFLAGS_D2SHIFT 8 | |
290 | #define NVREG_WAKEUPFLAGS_D1SHIFT 4 | |
291 | #define NVREG_WAKEUPFLAGS_D0SHIFT 0 | |
292 | #define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT 0x01 | |
293 | #define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT 0x02 | |
294 | #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04 | |
295 | #define NVREG_WAKEUPFLAGS_ENABLE 0x1111 | |
296 | ||
cac1c52c AA |
297 | NvRegMgmtUnitGetVersion = 0x204, |
298 | #define NVREG_MGMTUNITGETVERSION 0x01 | |
299 | NvRegMgmtUnitVersion = 0x208, | |
300 | #define NVREG_MGMTUNITVERSION 0x08 | |
1da177e4 LT |
301 | NvRegPowerCap = 0x268, |
302 | #define NVREG_POWERCAP_D3SUPP (1<<30) | |
303 | #define NVREG_POWERCAP_D2SUPP (1<<26) | |
304 | #define NVREG_POWERCAP_D1SUPP (1<<25) | |
305 | NvRegPowerState = 0x26c, | |
306 | #define NVREG_POWERSTATE_POWEREDUP 0x8000 | |
307 | #define NVREG_POWERSTATE_VALID 0x0100 | |
308 | #define NVREG_POWERSTATE_MASK 0x0003 | |
309 | #define NVREG_POWERSTATE_D0 0x0000 | |
310 | #define NVREG_POWERSTATE_D1 0x0001 | |
311 | #define NVREG_POWERSTATE_D2 0x0002 | |
312 | #define NVREG_POWERSTATE_D3 0x0003 | |
cac1c52c AA |
313 | NvRegMgmtUnitControl = 0x278, |
314 | #define NVREG_MGMTUNITCONTROL_INUSE 0x20000 | |
52da3578 AA |
315 | NvRegTxCnt = 0x280, |
316 | NvRegTxZeroReXmt = 0x284, | |
317 | NvRegTxOneReXmt = 0x288, | |
318 | NvRegTxManyReXmt = 0x28c, | |
319 | NvRegTxLateCol = 0x290, | |
320 | NvRegTxUnderflow = 0x294, | |
321 | NvRegTxLossCarrier = 0x298, | |
322 | NvRegTxExcessDef = 0x29c, | |
323 | NvRegTxRetryErr = 0x2a0, | |
324 | NvRegRxFrameErr = 0x2a4, | |
325 | NvRegRxExtraByte = 0x2a8, | |
326 | NvRegRxLateCol = 0x2ac, | |
327 | NvRegRxRunt = 0x2b0, | |
328 | NvRegRxFrameTooLong = 0x2b4, | |
329 | NvRegRxOverflow = 0x2b8, | |
330 | NvRegRxFCSErr = 0x2bc, | |
331 | NvRegRxFrameAlignErr = 0x2c0, | |
332 | NvRegRxLenErr = 0x2c4, | |
333 | NvRegRxUnicast = 0x2c8, | |
334 | NvRegRxMulticast = 0x2cc, | |
335 | NvRegRxBroadcast = 0x2d0, | |
336 | NvRegTxDef = 0x2d4, | |
337 | NvRegTxFrame = 0x2d8, | |
338 | NvRegRxCnt = 0x2dc, | |
339 | NvRegTxPause = 0x2e0, | |
340 | NvRegRxPause = 0x2e4, | |
341 | NvRegRxDropFrame = 0x2e8, | |
ee407b02 AA |
342 | NvRegVlanControl = 0x300, |
343 | #define NVREG_VLANCONTROL_ENABLE 0x2000 | |
d33a73c8 AA |
344 | NvRegMSIXMap0 = 0x3e0, |
345 | NvRegMSIXMap1 = 0x3e4, | |
346 | NvRegMSIXIrqStatus = 0x3f0, | |
86a0f043 AA |
347 | |
348 | NvRegPowerState2 = 0x600, | |
1545e205 | 349 | #define NVREG_POWERSTATE2_POWERUP_MASK 0x0F15 |
86a0f043 | 350 | #define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001 |
22ae03a1 | 351 | #define NVREG_POWERSTATE2_PHY_RESET 0x0004 |
88d7d8b0 | 352 | #define NVREG_POWERSTATE2_GATE_CLOCKS 0x0F00 |
1da177e4 LT |
353 | }; |
354 | ||
355 | /* Big endian: should work, but is untested */ | |
356 | struct ring_desc { | |
a8bed49e SH |
357 | __le32 buf; |
358 | __le32 flaglen; | |
1da177e4 LT |
359 | }; |
360 | ||
ee73362c | 361 | struct ring_desc_ex { |
a8bed49e SH |
362 | __le32 bufhigh; |
363 | __le32 buflow; | |
364 | __le32 txvlan; | |
365 | __le32 flaglen; | |
ee73362c MS |
366 | }; |
367 | ||
f82a9352 | 368 | union ring_type { |
ee73362c MS |
369 | struct ring_desc* orig; |
370 | struct ring_desc_ex* ex; | |
f82a9352 | 371 | }; |
ee73362c | 372 | |
1da177e4 LT |
373 | #define FLAG_MASK_V1 0xffff0000 |
374 | #define FLAG_MASK_V2 0xffffc000 | |
375 | #define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1) | |
376 | #define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2) | |
377 | ||
378 | #define NV_TX_LASTPACKET (1<<16) | |
379 | #define NV_TX_RETRYERROR (1<<19) | |
a433686c | 380 | #define NV_TX_RETRYCOUNT_MASK (0xF<<20) |
c2dba06d | 381 | #define NV_TX_FORCED_INTERRUPT (1<<24) |
1da177e4 LT |
382 | #define NV_TX_DEFERRED (1<<26) |
383 | #define NV_TX_CARRIERLOST (1<<27) | |
384 | #define NV_TX_LATECOLLISION (1<<28) | |
385 | #define NV_TX_UNDERFLOW (1<<29) | |
386 | #define NV_TX_ERROR (1<<30) | |
387 | #define NV_TX_VALID (1<<31) | |
388 | ||
389 | #define NV_TX2_LASTPACKET (1<<29) | |
390 | #define NV_TX2_RETRYERROR (1<<18) | |
a433686c | 391 | #define NV_TX2_RETRYCOUNT_MASK (0xF<<19) |
c2dba06d | 392 | #define NV_TX2_FORCED_INTERRUPT (1<<30) |
1da177e4 LT |
393 | #define NV_TX2_DEFERRED (1<<25) |
394 | #define NV_TX2_CARRIERLOST (1<<26) | |
395 | #define NV_TX2_LATECOLLISION (1<<27) | |
396 | #define NV_TX2_UNDERFLOW (1<<28) | |
397 | /* error and valid are the same for both */ | |
398 | #define NV_TX2_ERROR (1<<30) | |
399 | #define NV_TX2_VALID (1<<31) | |
ac9c1897 AA |
400 | #define NV_TX2_TSO (1<<28) |
401 | #define NV_TX2_TSO_SHIFT 14 | |
fa45459e AA |
402 | #define NV_TX2_TSO_MAX_SHIFT 14 |
403 | #define NV_TX2_TSO_MAX_SIZE (1<<NV_TX2_TSO_MAX_SHIFT) | |
8a4ae7f2 MS |
404 | #define NV_TX2_CHECKSUM_L3 (1<<27) |
405 | #define NV_TX2_CHECKSUM_L4 (1<<26) | |
1da177e4 | 406 | |
ee407b02 AA |
407 | #define NV_TX3_VLAN_TAG_PRESENT (1<<18) |
408 | ||
1da177e4 LT |
409 | #define NV_RX_DESCRIPTORVALID (1<<16) |
410 | #define NV_RX_MISSEDFRAME (1<<17) | |
411 | #define NV_RX_SUBSTRACT1 (1<<18) | |
412 | #define NV_RX_ERROR1 (1<<23) | |
413 | #define NV_RX_ERROR2 (1<<24) | |
414 | #define NV_RX_ERROR3 (1<<25) | |
415 | #define NV_RX_ERROR4 (1<<26) | |
416 | #define NV_RX_CRCERR (1<<27) | |
417 | #define NV_RX_OVERFLOW (1<<28) | |
418 | #define NV_RX_FRAMINGERR (1<<29) | |
419 | #define NV_RX_ERROR (1<<30) | |
420 | #define NV_RX_AVAIL (1<<31) | |
1ef6841b | 421 | #define NV_RX_ERROR_MASK (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4|NV_RX_CRCERR|NV_RX_OVERFLOW|NV_RX_FRAMINGERR) |
1da177e4 LT |
422 | |
423 | #define NV_RX2_CHECKSUMMASK (0x1C000000) | |
bfaffe8f AA |
424 | #define NV_RX2_CHECKSUM_IP (0x10000000) |
425 | #define NV_RX2_CHECKSUM_IP_TCP (0x14000000) | |
426 | #define NV_RX2_CHECKSUM_IP_UDP (0x18000000) | |
1da177e4 LT |
427 | #define NV_RX2_DESCRIPTORVALID (1<<29) |
428 | #define NV_RX2_SUBSTRACT1 (1<<25) | |
429 | #define NV_RX2_ERROR1 (1<<18) | |
430 | #define NV_RX2_ERROR2 (1<<19) | |
431 | #define NV_RX2_ERROR3 (1<<20) | |
432 | #define NV_RX2_ERROR4 (1<<21) | |
433 | #define NV_RX2_CRCERR (1<<22) | |
434 | #define NV_RX2_OVERFLOW (1<<23) | |
435 | #define NV_RX2_FRAMINGERR (1<<24) | |
436 | /* error and avail are the same for both */ | |
437 | #define NV_RX2_ERROR (1<<30) | |
438 | #define NV_RX2_AVAIL (1<<31) | |
1ef6841b | 439 | #define NV_RX2_ERROR_MASK (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4|NV_RX2_CRCERR|NV_RX2_OVERFLOW|NV_RX2_FRAMINGERR) |
1da177e4 | 440 | |
ee407b02 AA |
441 | #define NV_RX3_VLAN_TAG_PRESENT (1<<16) |
442 | #define NV_RX3_VLAN_TAG_MASK (0x0000FFFF) | |
443 | ||
1da177e4 | 444 | /* Miscelaneous hardware related defines: */ |
86a0f043 | 445 | #define NV_PCI_REGSZ_VER1 0x270 |
57fff698 AA |
446 | #define NV_PCI_REGSZ_VER2 0x2d4 |
447 | #define NV_PCI_REGSZ_VER3 0x604 | |
1a1ca861 | 448 | #define NV_PCI_REGSZ_MAX 0x604 |
1da177e4 LT |
449 | |
450 | /* various timeout delays: all in usec */ | |
451 | #define NV_TXRX_RESET_DELAY 4 | |
452 | #define NV_TXSTOP_DELAY1 10 | |
453 | #define NV_TXSTOP_DELAY1MAX 500000 | |
454 | #define NV_TXSTOP_DELAY2 100 | |
455 | #define NV_RXSTOP_DELAY1 10 | |
456 | #define NV_RXSTOP_DELAY1MAX 500000 | |
457 | #define NV_RXSTOP_DELAY2 100 | |
458 | #define NV_SETUP5_DELAY 5 | |
459 | #define NV_SETUP5_DELAYMAX 50000 | |
460 | #define NV_POWERUP_DELAY 5 | |
461 | #define NV_POWERUP_DELAYMAX 5000 | |
462 | #define NV_MIIBUSY_DELAY 50 | |
463 | #define NV_MIIPHY_DELAY 10 | |
464 | #define NV_MIIPHY_DELAYMAX 10000 | |
86a0f043 | 465 | #define NV_MAC_RESET_DELAY 64 |
1da177e4 LT |
466 | |
467 | #define NV_WAKEUPPATTERNS 5 | |
468 | #define NV_WAKEUPMASKENTRIES 4 | |
469 | ||
470 | /* General driver defaults */ | |
471 | #define NV_WATCHDOG_TIMEO (5*HZ) | |
472 | ||
6cef67a0 | 473 | #define RX_RING_DEFAULT 512 |
eafa59f6 AA |
474 | #define TX_RING_DEFAULT 256 |
475 | #define RX_RING_MIN 128 | |
476 | #define TX_RING_MIN 64 | |
477 | #define RING_MAX_DESC_VER_1 1024 | |
478 | #define RING_MAX_DESC_VER_2_3 16384 | |
1da177e4 LT |
479 | |
480 | /* rx/tx mac addr + type + vlan + align + slack*/ | |
d81c0983 MS |
481 | #define NV_RX_HEADERS (64) |
482 | /* even more slack. */ | |
483 | #define NV_RX_ALLOC_PAD (64) | |
484 | ||
485 | /* maximum mtu size */ | |
486 | #define NV_PKTLIMIT_1 ETH_DATA_LEN /* hard limit not known */ | |
487 | #define NV_PKTLIMIT_2 9100 /* Actual limit according to NVidia: 9202 */ | |
1da177e4 LT |
488 | |
489 | #define OOM_REFILL (1+HZ/20) | |
490 | #define POLL_WAIT (1+HZ/100) | |
491 | #define LINK_TIMEOUT (3*HZ) | |
52da3578 | 492 | #define STATS_INTERVAL (10*HZ) |
1da177e4 | 493 | |
f3b197ac | 494 | /* |
1da177e4 | 495 | * desc_ver values: |
8a4ae7f2 MS |
496 | * The nic supports three different descriptor types: |
497 | * - DESC_VER_1: Original | |
498 | * - DESC_VER_2: support for jumbo frames. | |
499 | * - DESC_VER_3: 64-bit format. | |
1da177e4 | 500 | */ |
8a4ae7f2 MS |
501 | #define DESC_VER_1 1 |
502 | #define DESC_VER_2 2 | |
503 | #define DESC_VER_3 3 | |
1da177e4 LT |
504 | |
505 | /* PHY defines */ | |
9f3f7910 AA |
506 | #define PHY_OUI_MARVELL 0x5043 |
507 | #define PHY_OUI_CICADA 0x03f1 | |
508 | #define PHY_OUI_VITESSE 0x01c1 | |
509 | #define PHY_OUI_REALTEK 0x0732 | |
510 | #define PHY_OUI_REALTEK2 0x0020 | |
1da177e4 LT |
511 | #define PHYID1_OUI_MASK 0x03ff |
512 | #define PHYID1_OUI_SHFT 6 | |
513 | #define PHYID2_OUI_MASK 0xfc00 | |
514 | #define PHYID2_OUI_SHFT 10 | |
edf7e5ec | 515 | #define PHYID2_MODEL_MASK 0x03f0 |
9f3f7910 AA |
516 | #define PHY_MODEL_REALTEK_8211 0x0110 |
517 | #define PHY_REV_MASK 0x0001 | |
518 | #define PHY_REV_REALTEK_8211B 0x0000 | |
519 | #define PHY_REV_REALTEK_8211C 0x0001 | |
520 | #define PHY_MODEL_REALTEK_8201 0x0200 | |
521 | #define PHY_MODEL_MARVELL_E3016 0x0220 | |
edf7e5ec | 522 | #define PHY_MARVELL_E3016_INITMASK 0x0300 |
14a67f3c AA |
523 | #define PHY_CICADA_INIT1 0x0f000 |
524 | #define PHY_CICADA_INIT2 0x0e00 | |
525 | #define PHY_CICADA_INIT3 0x01000 | |
526 | #define PHY_CICADA_INIT4 0x0200 | |
527 | #define PHY_CICADA_INIT5 0x0004 | |
528 | #define PHY_CICADA_INIT6 0x02000 | |
d215d8a2 AA |
529 | #define PHY_VITESSE_INIT_REG1 0x1f |
530 | #define PHY_VITESSE_INIT_REG2 0x10 | |
531 | #define PHY_VITESSE_INIT_REG3 0x11 | |
532 | #define PHY_VITESSE_INIT_REG4 0x12 | |
533 | #define PHY_VITESSE_INIT_MSK1 0xc | |
534 | #define PHY_VITESSE_INIT_MSK2 0x0180 | |
535 | #define PHY_VITESSE_INIT1 0x52b5 | |
536 | #define PHY_VITESSE_INIT2 0xaf8a | |
537 | #define PHY_VITESSE_INIT3 0x8 | |
538 | #define PHY_VITESSE_INIT4 0x8f8a | |
539 | #define PHY_VITESSE_INIT5 0xaf86 | |
540 | #define PHY_VITESSE_INIT6 0x8f86 | |
541 | #define PHY_VITESSE_INIT7 0xaf82 | |
542 | #define PHY_VITESSE_INIT8 0x0100 | |
543 | #define PHY_VITESSE_INIT9 0x8f82 | |
544 | #define PHY_VITESSE_INIT10 0x0 | |
c5e3ae88 AA |
545 | #define PHY_REALTEK_INIT_REG1 0x1f |
546 | #define PHY_REALTEK_INIT_REG2 0x19 | |
547 | #define PHY_REALTEK_INIT_REG3 0x13 | |
9f3f7910 AA |
548 | #define PHY_REALTEK_INIT_REG4 0x14 |
549 | #define PHY_REALTEK_INIT_REG5 0x18 | |
550 | #define PHY_REALTEK_INIT_REG6 0x11 | |
22ae03a1 | 551 | #define PHY_REALTEK_INIT_REG7 0x01 |
c5e3ae88 AA |
552 | #define PHY_REALTEK_INIT1 0x0000 |
553 | #define PHY_REALTEK_INIT2 0x8e00 | |
554 | #define PHY_REALTEK_INIT3 0x0001 | |
555 | #define PHY_REALTEK_INIT4 0xad17 | |
9f3f7910 AA |
556 | #define PHY_REALTEK_INIT5 0xfb54 |
557 | #define PHY_REALTEK_INIT6 0xf5c7 | |
558 | #define PHY_REALTEK_INIT7 0x1000 | |
559 | #define PHY_REALTEK_INIT8 0x0003 | |
22ae03a1 AA |
560 | #define PHY_REALTEK_INIT9 0x0008 |
561 | #define PHY_REALTEK_INIT10 0x0005 | |
562 | #define PHY_REALTEK_INIT11 0x0200 | |
9f3f7910 | 563 | #define PHY_REALTEK_INIT_MSK1 0x0003 |
d215d8a2 | 564 | |
1da177e4 LT |
565 | #define PHY_GIGABIT 0x0100 |
566 | ||
567 | #define PHY_TIMEOUT 0x1 | |
568 | #define PHY_ERROR 0x2 | |
569 | ||
570 | #define PHY_100 0x1 | |
571 | #define PHY_1000 0x2 | |
572 | #define PHY_HALF 0x100 | |
573 | ||
eb91f61b AA |
574 | #define NV_PAUSEFRAME_RX_CAPABLE 0x0001 |
575 | #define NV_PAUSEFRAME_TX_CAPABLE 0x0002 | |
576 | #define NV_PAUSEFRAME_RX_ENABLE 0x0004 | |
577 | #define NV_PAUSEFRAME_TX_ENABLE 0x0008 | |
b6d0773f AA |
578 | #define NV_PAUSEFRAME_RX_REQ 0x0010 |
579 | #define NV_PAUSEFRAME_TX_REQ 0x0020 | |
580 | #define NV_PAUSEFRAME_AUTONEG 0x0040 | |
1da177e4 | 581 | |
d33a73c8 AA |
582 | /* MSI/MSI-X defines */ |
583 | #define NV_MSI_X_MAX_VECTORS 8 | |
584 | #define NV_MSI_X_VECTORS_MASK 0x000f | |
585 | #define NV_MSI_CAPABLE 0x0010 | |
586 | #define NV_MSI_X_CAPABLE 0x0020 | |
587 | #define NV_MSI_ENABLED 0x0040 | |
588 | #define NV_MSI_X_ENABLED 0x0080 | |
589 | ||
590 | #define NV_MSI_X_VECTOR_ALL 0x0 | |
591 | #define NV_MSI_X_VECTOR_RX 0x0 | |
592 | #define NV_MSI_X_VECTOR_TX 0x1 | |
593 | #define NV_MSI_X_VECTOR_OTHER 0x2 | |
1da177e4 | 594 | |
b6e4405b AA |
595 | #define NV_MSI_PRIV_OFFSET 0x68 |
596 | #define NV_MSI_PRIV_VALUE 0xffffffff | |
597 | ||
b2976d23 AA |
598 | #define NV_RESTART_TX 0x1 |
599 | #define NV_RESTART_RX 0x2 | |
600 | ||
3b446c3e AA |
601 | #define NV_TX_LIMIT_COUNT 16 |
602 | ||
4145ade2 AA |
603 | #define NV_DYNAMIC_THRESHOLD 4 |
604 | #define NV_DYNAMIC_MAX_QUIET_COUNT 2048 | |
605 | ||
52da3578 AA |
606 | /* statistics */ |
607 | struct nv_ethtool_str { | |
608 | char name[ETH_GSTRING_LEN]; | |
609 | }; | |
610 | ||
611 | static const struct nv_ethtool_str nv_estats_str[] = { | |
612 | { "tx_bytes" }, | |
613 | { "tx_zero_rexmt" }, | |
614 | { "tx_one_rexmt" }, | |
615 | { "tx_many_rexmt" }, | |
616 | { "tx_late_collision" }, | |
617 | { "tx_fifo_errors" }, | |
618 | { "tx_carrier_errors" }, | |
619 | { "tx_excess_deferral" }, | |
620 | { "tx_retry_error" }, | |
52da3578 AA |
621 | { "rx_frame_error" }, |
622 | { "rx_extra_byte" }, | |
623 | { "rx_late_collision" }, | |
624 | { "rx_runt" }, | |
625 | { "rx_frame_too_long" }, | |
626 | { "rx_over_errors" }, | |
627 | { "rx_crc_errors" }, | |
628 | { "rx_frame_align_error" }, | |
629 | { "rx_length_error" }, | |
630 | { "rx_unicast" }, | |
631 | { "rx_multicast" }, | |
632 | { "rx_broadcast" }, | |
57fff698 AA |
633 | { "rx_packets" }, |
634 | { "rx_errors_total" }, | |
635 | { "tx_errors_total" }, | |
636 | ||
637 | /* version 2 stats */ | |
638 | { "tx_deferral" }, | |
639 | { "tx_packets" }, | |
52da3578 | 640 | { "rx_bytes" }, |
57fff698 | 641 | { "tx_pause" }, |
52da3578 | 642 | { "rx_pause" }, |
9c662435 AA |
643 | { "rx_drop_frame" }, |
644 | ||
645 | /* version 3 stats */ | |
646 | { "tx_unicast" }, | |
647 | { "tx_multicast" }, | |
648 | { "tx_broadcast" } | |
52da3578 AA |
649 | }; |
650 | ||
651 | struct nv_ethtool_stats { | |
652 | u64 tx_bytes; | |
653 | u64 tx_zero_rexmt; | |
654 | u64 tx_one_rexmt; | |
655 | u64 tx_many_rexmt; | |
656 | u64 tx_late_collision; | |
657 | u64 tx_fifo_errors; | |
658 | u64 tx_carrier_errors; | |
659 | u64 tx_excess_deferral; | |
660 | u64 tx_retry_error; | |
52da3578 AA |
661 | u64 rx_frame_error; |
662 | u64 rx_extra_byte; | |
663 | u64 rx_late_collision; | |
664 | u64 rx_runt; | |
665 | u64 rx_frame_too_long; | |
666 | u64 rx_over_errors; | |
667 | u64 rx_crc_errors; | |
668 | u64 rx_frame_align_error; | |
669 | u64 rx_length_error; | |
670 | u64 rx_unicast; | |
671 | u64 rx_multicast; | |
672 | u64 rx_broadcast; | |
57fff698 AA |
673 | u64 rx_packets; |
674 | u64 rx_errors_total; | |
675 | u64 tx_errors_total; | |
676 | ||
677 | /* version 2 stats */ | |
678 | u64 tx_deferral; | |
679 | u64 tx_packets; | |
52da3578 | 680 | u64 rx_bytes; |
57fff698 | 681 | u64 tx_pause; |
52da3578 AA |
682 | u64 rx_pause; |
683 | u64 rx_drop_frame; | |
9c662435 AA |
684 | |
685 | /* version 3 stats */ | |
686 | u64 tx_unicast; | |
687 | u64 tx_multicast; | |
688 | u64 tx_broadcast; | |
52da3578 AA |
689 | }; |
690 | ||
9c662435 AA |
691 | #define NV_DEV_STATISTICS_V3_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64)) |
692 | #define NV_DEV_STATISTICS_V2_COUNT (NV_DEV_STATISTICS_V3_COUNT - 3) | |
57fff698 AA |
693 | #define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6) |
694 | ||
9589c77a AA |
695 | /* diagnostics */ |
696 | #define NV_TEST_COUNT_BASE 3 | |
697 | #define NV_TEST_COUNT_EXTENDED 4 | |
698 | ||
699 | static const struct nv_ethtool_str nv_etests_str[] = { | |
700 | { "link (online/offline)" }, | |
701 | { "register (offline) " }, | |
702 | { "interrupt (offline) " }, | |
703 | { "loopback (offline) " } | |
704 | }; | |
705 | ||
706 | struct register_test { | |
5bb7ea26 AV |
707 | __u32 reg; |
708 | __u32 mask; | |
9589c77a AA |
709 | }; |
710 | ||
711 | static const struct register_test nv_registers_test[] = { | |
712 | { NvRegUnknownSetupReg6, 0x01 }, | |
713 | { NvRegMisc1, 0x03c }, | |
714 | { NvRegOffloadConfig, 0x03ff }, | |
715 | { NvRegMulticastAddrA, 0xffffffff }, | |
95d161cb | 716 | { NvRegTxWatermark, 0x0ff }, |
9589c77a AA |
717 | { NvRegWakeUpFlags, 0x07777 }, |
718 | { 0,0 } | |
719 | }; | |
720 | ||
761fcd9e AA |
721 | struct nv_skb_map { |
722 | struct sk_buff *skb; | |
723 | dma_addr_t dma; | |
73a37079 ED |
724 | unsigned int dma_len:31; |
725 | unsigned int dma_single:1; | |
3b446c3e AA |
726 | struct ring_desc_ex *first_tx_desc; |
727 | struct nv_skb_map *next_tx_ctx; | |
761fcd9e AA |
728 | }; |
729 | ||
1da177e4 LT |
730 | /* |
731 | * SMP locking: | |
b74ca3a8 | 732 | * All hardware access under netdev_priv(dev)->lock, except the performance |
1da177e4 LT |
733 | * critical parts: |
734 | * - rx is (pseudo-) lockless: it relies on the single-threading provided | |
735 | * by the arch code for interrupts. | |
932ff279 | 736 | * - tx setup is lockless: it relies on netif_tx_lock. Actual submission |
b74ca3a8 | 737 | * needs netdev_priv(dev)->lock :-( |
932ff279 | 738 | * - set_multicast_list: preparation lockless, relies on netif_tx_lock. |
1da177e4 LT |
739 | */ |
740 | ||
741 | /* in dev: base, irq */ | |
742 | struct fe_priv { | |
743 | spinlock_t lock; | |
744 | ||
bea3348e SH |
745 | struct net_device *dev; |
746 | struct napi_struct napi; | |
747 | ||
1da177e4 LT |
748 | /* General data: |
749 | * Locking: spin_lock(&np->lock); */ | |
52da3578 | 750 | struct nv_ethtool_stats estats; |
1da177e4 LT |
751 | int in_shutdown; |
752 | u32 linkspeed; | |
753 | int duplex; | |
754 | int autoneg; | |
755 | int fixed_mode; | |
756 | int phyaddr; | |
757 | int wolenabled; | |
758 | unsigned int phy_oui; | |
edf7e5ec | 759 | unsigned int phy_model; |
9f3f7910 | 760 | unsigned int phy_rev; |
1da177e4 | 761 | u16 gigabit; |
9589c77a | 762 | int intr_test; |
c5cf9101 | 763 | int recover_error; |
4145ade2 | 764 | int quiet_count; |
1da177e4 LT |
765 | |
766 | /* General data: RO fields */ | |
767 | dma_addr_t ring_addr; | |
768 | struct pci_dev *pci_dev; | |
769 | u32 orig_mac[2]; | |
582806be | 770 | u32 events; |
1da177e4 LT |
771 | u32 irqmask; |
772 | u32 desc_ver; | |
8a4ae7f2 | 773 | u32 txrxctl_bits; |
ee407b02 | 774 | u32 vlanctl_bits; |
86a0f043 | 775 | u32 driver_data; |
9f3f7910 | 776 | u32 device_id; |
86a0f043 | 777 | u32 register_size; |
f2ad2d9b | 778 | int rx_csum; |
7e680c22 | 779 | u32 mac_in_use; |
cac1c52c AA |
780 | int mgmt_version; |
781 | int mgmt_sema; | |
1da177e4 LT |
782 | |
783 | void __iomem *base; | |
784 | ||
785 | /* rx specific fields. | |
786 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
787 | */ | |
761fcd9e AA |
788 | union ring_type get_rx, put_rx, first_rx, last_rx; |
789 | struct nv_skb_map *get_rx_ctx, *put_rx_ctx; | |
790 | struct nv_skb_map *first_rx_ctx, *last_rx_ctx; | |
791 | struct nv_skb_map *rx_skb; | |
792 | ||
f82a9352 | 793 | union ring_type rx_ring; |
1da177e4 | 794 | unsigned int rx_buf_sz; |
d81c0983 | 795 | unsigned int pkt_limit; |
1da177e4 LT |
796 | struct timer_list oom_kick; |
797 | struct timer_list nic_poll; | |
52da3578 | 798 | struct timer_list stats_poll; |
d33a73c8 | 799 | u32 nic_poll_irq; |
eafa59f6 | 800 | int rx_ring_size; |
1da177e4 LT |
801 | |
802 | /* media detection workaround. | |
803 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
804 | */ | |
805 | int need_linktimer; | |
806 | unsigned long link_timeout; | |
807 | /* | |
808 | * tx specific fields. | |
809 | */ | |
761fcd9e AA |
810 | union ring_type get_tx, put_tx, first_tx, last_tx; |
811 | struct nv_skb_map *get_tx_ctx, *put_tx_ctx; | |
812 | struct nv_skb_map *first_tx_ctx, *last_tx_ctx; | |
813 | struct nv_skb_map *tx_skb; | |
814 | ||
f82a9352 | 815 | union ring_type tx_ring; |
1da177e4 | 816 | u32 tx_flags; |
eafa59f6 | 817 | int tx_ring_size; |
3b446c3e AA |
818 | int tx_limit; |
819 | u32 tx_pkts_in_progress; | |
820 | struct nv_skb_map *tx_change_owner; | |
821 | struct nv_skb_map *tx_end_flip; | |
aaa37d2d | 822 | int tx_stop; |
ee407b02 AA |
823 | |
824 | /* vlan fields */ | |
825 | struct vlan_group *vlangrp; | |
d33a73c8 AA |
826 | |
827 | /* msi/msi-x fields */ | |
828 | u32 msi_flags; | |
829 | struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS]; | |
eb91f61b AA |
830 | |
831 | /* flow control */ | |
832 | u32 pause_flags; | |
1a1ca861 TD |
833 | |
834 | /* power saved state */ | |
835 | u32 saved_config_space[NV_PCI_REGSZ_MAX/4]; | |
ddb213f0 YL |
836 | |
837 | /* for different msi-x irq type */ | |
838 | char name_rx[IFNAMSIZ + 3]; /* -rx */ | |
839 | char name_tx[IFNAMSIZ + 3]; /* -tx */ | |
840 | char name_other[IFNAMSIZ + 6]; /* -other */ | |
1da177e4 LT |
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 | */ | |
4145ade2 | 847 | static int max_interrupt_work = 4; |
1da177e4 | 848 | |
a971c324 AA |
849 | /* |
850 | * Optimization can be either throuput mode or cpu mode | |
f3b197ac | 851 | * |
a971c324 AA |
852 | * Throughput Mode: Every tx and rx packet will generate an interrupt. |
853 | * CPU Mode: Interrupts are controlled by a timer. | |
854 | */ | |
69fe3fd7 AA |
855 | enum { |
856 | NV_OPTIMIZATION_MODE_THROUGHPUT, | |
9e184767 AA |
857 | NV_OPTIMIZATION_MODE_CPU, |
858 | NV_OPTIMIZATION_MODE_DYNAMIC | |
69fe3fd7 | 859 | }; |
9e184767 | 860 | static int optimization_mode = NV_OPTIMIZATION_MODE_DYNAMIC; |
a971c324 AA |
861 | |
862 | /* | |
863 | * Poll interval for timer irq | |
864 | * | |
865 | * This interval determines how frequent an interrupt is generated. | |
866 | * The is value is determined by [(time_in_micro_secs * 100) / (2^10)] | |
867 | * Min = 0, and Max = 65535 | |
868 | */ | |
869 | static int poll_interval = -1; | |
870 | ||
d33a73c8 | 871 | /* |
69fe3fd7 | 872 | * MSI interrupts |
d33a73c8 | 873 | */ |
69fe3fd7 AA |
874 | enum { |
875 | NV_MSI_INT_DISABLED, | |
876 | NV_MSI_INT_ENABLED | |
877 | }; | |
878 | static int msi = NV_MSI_INT_ENABLED; | |
d33a73c8 AA |
879 | |
880 | /* | |
69fe3fd7 | 881 | * MSIX interrupts |
d33a73c8 | 882 | */ |
69fe3fd7 AA |
883 | enum { |
884 | NV_MSIX_INT_DISABLED, | |
885 | NV_MSIX_INT_ENABLED | |
886 | }; | |
39482791 | 887 | static int msix = NV_MSIX_INT_ENABLED; |
69fe3fd7 AA |
888 | |
889 | /* | |
890 | * DMA 64bit | |
891 | */ | |
892 | enum { | |
893 | NV_DMA_64BIT_DISABLED, | |
894 | NV_DMA_64BIT_ENABLED | |
895 | }; | |
896 | static int dma_64bit = NV_DMA_64BIT_ENABLED; | |
d33a73c8 | 897 | |
9f3f7910 AA |
898 | /* |
899 | * Crossover Detection | |
900 | * Realtek 8201 phy + some OEM boards do not work properly. | |
901 | */ | |
902 | enum { | |
903 | NV_CROSSOVER_DETECTION_DISABLED, | |
904 | NV_CROSSOVER_DETECTION_ENABLED | |
905 | }; | |
906 | static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED; | |
907 | ||
5a9a8e32 ES |
908 | /* |
909 | * Power down phy when interface is down (persists through reboot; | |
910 | * older Linux and other OSes may not power it up again) | |
911 | */ | |
912 | static int phy_power_down = 0; | |
913 | ||
1da177e4 LT |
914 | static inline struct fe_priv *get_nvpriv(struct net_device *dev) |
915 | { | |
916 | return netdev_priv(dev); | |
917 | } | |
918 | ||
919 | static inline u8 __iomem *get_hwbase(struct net_device *dev) | |
920 | { | |
ac9c1897 | 921 | return ((struct fe_priv *)netdev_priv(dev))->base; |
1da177e4 LT |
922 | } |
923 | ||
924 | static inline void pci_push(u8 __iomem *base) | |
925 | { | |
926 | /* force out pending posted writes */ | |
927 | readl(base); | |
928 | } | |
929 | ||
930 | static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v) | |
931 | { | |
f82a9352 | 932 | return le32_to_cpu(prd->flaglen) |
1da177e4 LT |
933 | & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2); |
934 | } | |
935 | ||
ee73362c MS |
936 | static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v) |
937 | { | |
f82a9352 | 938 | return le32_to_cpu(prd->flaglen) & LEN_MASK_V2; |
ee73362c MS |
939 | } |
940 | ||
36b30ea9 JG |
941 | static bool nv_optimized(struct fe_priv *np) |
942 | { | |
943 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) | |
944 | return false; | |
945 | return true; | |
946 | } | |
947 | ||
1da177e4 LT |
948 | static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target, |
949 | int delay, int delaymax, const char *msg) | |
950 | { | |
951 | u8 __iomem *base = get_hwbase(dev); | |
952 | ||
953 | pci_push(base); | |
954 | do { | |
955 | udelay(delay); | |
956 | delaymax -= delay; | |
957 | if (delaymax < 0) { | |
958 | if (msg) | |
6a64cd64 | 959 | printk("%s", msg); |
1da177e4 LT |
960 | return 1; |
961 | } | |
962 | } while ((readl(base + offset) & mask) != target); | |
963 | return 0; | |
964 | } | |
965 | ||
0832b25a AA |
966 | #define NV_SETUP_RX_RING 0x01 |
967 | #define NV_SETUP_TX_RING 0x02 | |
968 | ||
5bb7ea26 AV |
969 | static inline u32 dma_low(dma_addr_t addr) |
970 | { | |
971 | return addr; | |
972 | } | |
973 | ||
974 | static inline u32 dma_high(dma_addr_t addr) | |
975 | { | |
976 | return addr>>31>>1; /* 0 if 32bit, shift down by 32 if 64bit */ | |
977 | } | |
978 | ||
0832b25a AA |
979 | static void setup_hw_rings(struct net_device *dev, int rxtx_flags) |
980 | { | |
981 | struct fe_priv *np = get_nvpriv(dev); | |
982 | u8 __iomem *base = get_hwbase(dev); | |
983 | ||
36b30ea9 | 984 | if (!nv_optimized(np)) { |
0832b25a | 985 | if (rxtx_flags & NV_SETUP_RX_RING) { |
5bb7ea26 | 986 | writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr); |
0832b25a AA |
987 | } |
988 | if (rxtx_flags & NV_SETUP_TX_RING) { | |
5bb7ea26 | 989 | writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); |
0832b25a AA |
990 | } |
991 | } else { | |
992 | if (rxtx_flags & NV_SETUP_RX_RING) { | |
5bb7ea26 AV |
993 | writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr); |
994 | writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh); | |
0832b25a AA |
995 | } |
996 | if (rxtx_flags & NV_SETUP_TX_RING) { | |
5bb7ea26 AV |
997 | writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); |
998 | writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh); | |
0832b25a AA |
999 | } |
1000 | } | |
1001 | } | |
1002 | ||
eafa59f6 AA |
1003 | static void free_rings(struct net_device *dev) |
1004 | { | |
1005 | struct fe_priv *np = get_nvpriv(dev); | |
1006 | ||
36b30ea9 | 1007 | if (!nv_optimized(np)) { |
f82a9352 | 1008 | if (np->rx_ring.orig) |
eafa59f6 AA |
1009 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size), |
1010 | np->rx_ring.orig, np->ring_addr); | |
1011 | } else { | |
1012 | if (np->rx_ring.ex) | |
1013 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), | |
1014 | np->rx_ring.ex, np->ring_addr); | |
1015 | } | |
761fcd9e AA |
1016 | if (np->rx_skb) |
1017 | kfree(np->rx_skb); | |
1018 | if (np->tx_skb) | |
1019 | kfree(np->tx_skb); | |
eafa59f6 AA |
1020 | } |
1021 | ||
84b3932b AA |
1022 | static int using_multi_irqs(struct net_device *dev) |
1023 | { | |
1024 | struct fe_priv *np = get_nvpriv(dev); | |
1025 | ||
1026 | if (!(np->msi_flags & NV_MSI_X_ENABLED) || | |
1027 | ((np->msi_flags & NV_MSI_X_ENABLED) && | |
1028 | ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1))) | |
1029 | return 0; | |
1030 | else | |
1031 | return 1; | |
1032 | } | |
1033 | ||
88d7d8b0 AA |
1034 | static void nv_txrx_gate(struct net_device *dev, bool gate) |
1035 | { | |
1036 | struct fe_priv *np = get_nvpriv(dev); | |
1037 | u8 __iomem *base = get_hwbase(dev); | |
1038 | u32 powerstate; | |
1039 | ||
1040 | if (!np->mac_in_use && | |
1041 | (np->driver_data & DEV_HAS_POWER_CNTRL)) { | |
1042 | powerstate = readl(base + NvRegPowerState2); | |
1043 | if (gate) | |
1044 | powerstate |= NVREG_POWERSTATE2_GATE_CLOCKS; | |
1045 | else | |
1046 | powerstate &= ~NVREG_POWERSTATE2_GATE_CLOCKS; | |
1047 | writel(powerstate, base + NvRegPowerState2); | |
1048 | } | |
1049 | } | |
1050 | ||
84b3932b AA |
1051 | static void nv_enable_irq(struct net_device *dev) |
1052 | { | |
1053 | struct fe_priv *np = get_nvpriv(dev); | |
1054 | ||
1055 | if (!using_multi_irqs(dev)) { | |
1056 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1057 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1058 | else | |
a7475906 | 1059 | enable_irq(np->pci_dev->irq); |
84b3932b AA |
1060 | } else { |
1061 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1062 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); | |
1063 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | static void nv_disable_irq(struct net_device *dev) | |
1068 | { | |
1069 | struct fe_priv *np = get_nvpriv(dev); | |
1070 | ||
1071 | if (!using_multi_irqs(dev)) { | |
1072 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1073 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1074 | else | |
a7475906 | 1075 | disable_irq(np->pci_dev->irq); |
84b3932b AA |
1076 | } else { |
1077 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1078 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); | |
1079 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* In MSIX mode, a write to irqmask behaves as XOR */ | |
1084 | static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask) | |
1085 | { | |
1086 | u8 __iomem *base = get_hwbase(dev); | |
1087 | ||
1088 | writel(mask, base + NvRegIrqMask); | |
1089 | } | |
1090 | ||
1091 | static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask) | |
1092 | { | |
1093 | struct fe_priv *np = get_nvpriv(dev); | |
1094 | u8 __iomem *base = get_hwbase(dev); | |
1095 | ||
1096 | if (np->msi_flags & NV_MSI_X_ENABLED) { | |
1097 | writel(mask, base + NvRegIrqMask); | |
1098 | } else { | |
1099 | if (np->msi_flags & NV_MSI_ENABLED) | |
1100 | writel(0, base + NvRegMSIIrqMask); | |
1101 | writel(0, base + NvRegIrqMask); | |
1102 | } | |
1103 | } | |
1104 | ||
08d93575 AA |
1105 | static void nv_napi_enable(struct net_device *dev) |
1106 | { | |
1107 | #ifdef CONFIG_FORCEDETH_NAPI | |
1108 | struct fe_priv *np = get_nvpriv(dev); | |
1109 | ||
1110 | napi_enable(&np->napi); | |
1111 | #endif | |
1112 | } | |
1113 | ||
1114 | static void nv_napi_disable(struct net_device *dev) | |
1115 | { | |
1116 | #ifdef CONFIG_FORCEDETH_NAPI | |
1117 | struct fe_priv *np = get_nvpriv(dev); | |
1118 | ||
1119 | napi_disable(&np->napi); | |
1120 | #endif | |
1121 | } | |
1122 | ||
1da177e4 LT |
1123 | #define MII_READ (-1) |
1124 | /* mii_rw: read/write a register on the PHY. | |
1125 | * | |
1126 | * Caller must guarantee serialization | |
1127 | */ | |
1128 | static int mii_rw(struct net_device *dev, int addr, int miireg, int value) | |
1129 | { | |
1130 | u8 __iomem *base = get_hwbase(dev); | |
1131 | u32 reg; | |
1132 | int retval; | |
1133 | ||
eb798428 | 1134 | writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus); |
1da177e4 LT |
1135 | |
1136 | reg = readl(base + NvRegMIIControl); | |
1137 | if (reg & NVREG_MIICTL_INUSE) { | |
1138 | writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl); | |
1139 | udelay(NV_MIIBUSY_DELAY); | |
1140 | } | |
1141 | ||
1142 | reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg; | |
1143 | if (value != MII_READ) { | |
1144 | writel(value, base + NvRegMIIData); | |
1145 | reg |= NVREG_MIICTL_WRITE; | |
1146 | } | |
1147 | writel(reg, base + NvRegMIIControl); | |
1148 | ||
1149 | if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0, | |
1150 | NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) { | |
1151 | dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n", | |
1152 | dev->name, miireg, addr); | |
1153 | retval = -1; | |
1154 | } else if (value != MII_READ) { | |
1155 | /* it was a write operation - fewer failures are detectable */ | |
1156 | dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n", | |
1157 | dev->name, value, miireg, addr); | |
1158 | retval = 0; | |
1159 | } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) { | |
1160 | dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n", | |
1161 | dev->name, miireg, addr); | |
1162 | retval = -1; | |
1163 | } else { | |
1164 | retval = readl(base + NvRegMIIData); | |
1165 | dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n", | |
1166 | dev->name, miireg, addr, retval); | |
1167 | } | |
1168 | ||
1169 | return retval; | |
1170 | } | |
1171 | ||
edf7e5ec | 1172 | static int phy_reset(struct net_device *dev, u32 bmcr_setup) |
1da177e4 | 1173 | { |
ac9c1897 | 1174 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
1175 | u32 miicontrol; |
1176 | unsigned int tries = 0; | |
1177 | ||
edf7e5ec | 1178 | miicontrol = BMCR_RESET | bmcr_setup; |
1da177e4 LT |
1179 | if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) { |
1180 | return -1; | |
1181 | } | |
1182 | ||
1183 | /* wait for 500ms */ | |
1184 | msleep(500); | |
1185 | ||
1186 | /* must wait till reset is deasserted */ | |
1187 | while (miicontrol & BMCR_RESET) { | |
1188 | msleep(10); | |
1189 | miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
1190 | /* FIXME: 100 tries seem excessive */ | |
1191 | if (tries++ > 100) | |
1192 | return -1; | |
1193 | } | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | static int phy_init(struct net_device *dev) | |
1198 | { | |
1199 | struct fe_priv *np = get_nvpriv(dev); | |
1200 | u8 __iomem *base = get_hwbase(dev); | |
1201 | u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg; | |
1202 | ||
edf7e5ec AA |
1203 | /* phy errata for E3016 phy */ |
1204 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { | |
1205 | reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ); | |
1206 | reg &= ~PHY_MARVELL_E3016_INITMASK; | |
1207 | if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) { | |
1208 | printk(KERN_INFO "%s: phy write to errata reg failed.\n", pci_name(np->pci_dev)); | |
1209 | return PHY_ERROR; | |
1210 | } | |
1211 | } | |
c5e3ae88 | 1212 | if (np->phy_oui == PHY_OUI_REALTEK) { |
9f3f7910 AA |
1213 | if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1214 | np->phy_rev == PHY_REV_REALTEK_8211B) { | |
1215 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1216 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1217 | return PHY_ERROR; | |
1218 | } | |
1219 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) { | |
1220 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1221 | return PHY_ERROR; | |
1222 | } | |
1223 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) { | |
1224 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1225 | return PHY_ERROR; | |
1226 | } | |
1227 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) { | |
1228 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1229 | return PHY_ERROR; | |
1230 | } | |
1231 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5)) { | |
1232 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1233 | return PHY_ERROR; | |
1234 | } | |
1235 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6)) { | |
1236 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1237 | return PHY_ERROR; | |
1238 | } | |
1239 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1240 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1241 | return PHY_ERROR; | |
1242 | } | |
c5e3ae88 | 1243 | } |
22ae03a1 AA |
1244 | if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1245 | np->phy_rev == PHY_REV_REALTEK_8211C) { | |
1246 | u32 powerstate = readl(base + NvRegPowerState2); | |
1247 | ||
1248 | /* need to perform hw phy reset */ | |
1249 | powerstate |= NVREG_POWERSTATE2_PHY_RESET; | |
1250 | writel(powerstate, base + NvRegPowerState2); | |
1251 | msleep(25); | |
1252 | ||
1253 | powerstate &= ~NVREG_POWERSTATE2_PHY_RESET; | |
1254 | writel(powerstate, base + NvRegPowerState2); | |
1255 | msleep(25); | |
1256 | ||
1257 | reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ); | |
1258 | reg |= PHY_REALTEK_INIT9; | |
1259 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, reg)) { | |
1260 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1261 | return PHY_ERROR; | |
1262 | } | |
1263 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT10)) { | |
1264 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1265 | return PHY_ERROR; | |
1266 | } | |
1267 | reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, MII_READ); | |
1268 | if (!(reg & PHY_REALTEK_INIT11)) { | |
1269 | reg |= PHY_REALTEK_INIT11; | |
1270 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, reg)) { | |
1271 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1272 | return PHY_ERROR; | |
1273 | } | |
1274 | } | |
1275 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1276 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1277 | return PHY_ERROR; | |
1278 | } | |
1279 | } | |
9f3f7910 | 1280 | if (np->phy_model == PHY_MODEL_REALTEK_8201) { |
3c2e1c11 | 1281 | if (np->driver_data & DEV_NEED_PHY_INIT_FIX) { |
9f3f7910 AA |
1282 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ); |
1283 | phy_reserved |= PHY_REALTEK_INIT7; | |
1284 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, phy_reserved)) { | |
1285 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1286 | return PHY_ERROR; | |
1287 | } | |
1288 | } | |
c5e3ae88 AA |
1289 | } |
1290 | } | |
edf7e5ec | 1291 | |
1da177e4 LT |
1292 | /* set advertise register */ |
1293 | reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
eb91f61b | 1294 | reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|ADVERTISE_PAUSE_ASYM|ADVERTISE_PAUSE_CAP); |
1da177e4 LT |
1295 | if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) { |
1296 | printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev)); | |
1297 | return PHY_ERROR; | |
1298 | } | |
1299 | ||
1300 | /* get phy interface type */ | |
1301 | phyinterface = readl(base + NvRegPhyInterface); | |
1302 | ||
1303 | /* see if gigabit phy */ | |
1304 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
1305 | if (mii_status & PHY_GIGABIT) { | |
1306 | np->gigabit = PHY_GIGABIT; | |
eb91f61b | 1307 | mii_control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
1da177e4 LT |
1308 | mii_control_1000 &= ~ADVERTISE_1000HALF; |
1309 | if (phyinterface & PHY_RGMII) | |
1310 | mii_control_1000 |= ADVERTISE_1000FULL; | |
1311 | else | |
1312 | mii_control_1000 &= ~ADVERTISE_1000FULL; | |
1313 | ||
eb91f61b | 1314 | if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) { |
1da177e4 LT |
1315 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); |
1316 | return PHY_ERROR; | |
1317 | } | |
1318 | } | |
1319 | else | |
1320 | np->gigabit = 0; | |
1321 | ||
edf7e5ec AA |
1322 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
1323 | mii_control |= BMCR_ANENABLE; | |
1324 | ||
22ae03a1 AA |
1325 | if (np->phy_oui == PHY_OUI_REALTEK && |
1326 | np->phy_model == PHY_MODEL_REALTEK_8211 && | |
1327 | np->phy_rev == PHY_REV_REALTEK_8211C) { | |
1328 | /* start autoneg since we already performed hw reset above */ | |
1329 | mii_control |= BMCR_ANRESTART; | |
1330 | if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) { | |
1331 | printk(KERN_INFO "%s: phy init failed\n", pci_name(np->pci_dev)); | |
1332 | return PHY_ERROR; | |
1333 | } | |
1334 | } else { | |
1335 | /* reset the phy | |
1336 | * (certain phys need bmcr to be setup with reset) | |
1337 | */ | |
1338 | if (phy_reset(dev, mii_control)) { | |
1339 | printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev)); | |
1340 | return PHY_ERROR; | |
1341 | } | |
1da177e4 LT |
1342 | } |
1343 | ||
1344 | /* phy vendor specific configuration */ | |
1345 | if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) { | |
1346 | phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ); | |
14a67f3c AA |
1347 | phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2); |
1348 | phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4); | |
1da177e4 LT |
1349 | if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) { |
1350 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1351 | return PHY_ERROR; | |
1352 | } | |
1353 | phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ); | |
14a67f3c | 1354 | phy_reserved |= PHY_CICADA_INIT5; |
1da177e4 LT |
1355 | if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) { |
1356 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1357 | return PHY_ERROR; | |
1358 | } | |
1359 | } | |
1360 | if (np->phy_oui == PHY_OUI_CICADA) { | |
1361 | phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ); | |
14a67f3c | 1362 | phy_reserved |= PHY_CICADA_INIT6; |
1da177e4 LT |
1363 | if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) { |
1364 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1365 | return PHY_ERROR; | |
1366 | } | |
1367 | } | |
d215d8a2 AA |
1368 | if (np->phy_oui == PHY_OUI_VITESSE) { |
1369 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1)) { | |
1370 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1371 | return PHY_ERROR; | |
1372 | } | |
1373 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2)) { | |
1374 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1375 | return PHY_ERROR; | |
1376 | } | |
1377 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ); | |
1378 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) { | |
1379 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1380 | return PHY_ERROR; | |
1381 | } | |
1382 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ); | |
1383 | phy_reserved &= ~PHY_VITESSE_INIT_MSK1; | |
1384 | phy_reserved |= PHY_VITESSE_INIT3; | |
1385 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) { | |
1386 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1387 | return PHY_ERROR; | |
1388 | } | |
1389 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4)) { | |
1390 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1391 | return PHY_ERROR; | |
1392 | } | |
1393 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5)) { | |
1394 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1395 | return PHY_ERROR; | |
1396 | } | |
1397 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ); | |
1398 | phy_reserved &= ~PHY_VITESSE_INIT_MSK1; | |
1399 | phy_reserved |= PHY_VITESSE_INIT3; | |
1400 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) { | |
1401 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1402 | return PHY_ERROR; | |
1403 | } | |
1404 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ); | |
1405 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) { | |
1406 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1407 | return PHY_ERROR; | |
1408 | } | |
1409 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6)) { | |
1410 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1411 | return PHY_ERROR; | |
1412 | } | |
1413 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7)) { | |
1414 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1415 | return PHY_ERROR; | |
1416 | } | |
1417 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ); | |
1418 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) { | |
1419 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1420 | return PHY_ERROR; | |
1421 | } | |
1422 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ); | |
1423 | phy_reserved &= ~PHY_VITESSE_INIT_MSK2; | |
1424 | phy_reserved |= PHY_VITESSE_INIT8; | |
1425 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) { | |
1426 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1427 | return PHY_ERROR; | |
1428 | } | |
1429 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9)) { | |
1430 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1431 | return PHY_ERROR; | |
1432 | } | |
1433 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10)) { | |
1434 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1435 | return PHY_ERROR; | |
1436 | } | |
1437 | } | |
c5e3ae88 | 1438 | if (np->phy_oui == PHY_OUI_REALTEK) { |
9f3f7910 AA |
1439 | if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1440 | np->phy_rev == PHY_REV_REALTEK_8211B) { | |
1441 | /* reset could have cleared these out, set them back */ | |
1442 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1443 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1444 | return PHY_ERROR; | |
1445 | } | |
1446 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) { | |
1447 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1448 | return PHY_ERROR; | |
1449 | } | |
1450 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) { | |
1451 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1452 | return PHY_ERROR; | |
1453 | } | |
1454 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) { | |
1455 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1456 | return PHY_ERROR; | |
1457 | } | |
1458 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5)) { | |
1459 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1460 | return PHY_ERROR; | |
1461 | } | |
1462 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6)) { | |
1463 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1464 | return PHY_ERROR; | |
1465 | } | |
1466 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1467 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1468 | return PHY_ERROR; | |
1469 | } | |
c5e3ae88 | 1470 | } |
9f3f7910 | 1471 | if (np->phy_model == PHY_MODEL_REALTEK_8201) { |
3c2e1c11 | 1472 | if (np->driver_data & DEV_NEED_PHY_INIT_FIX) { |
9f3f7910 AA |
1473 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ); |
1474 | phy_reserved |= PHY_REALTEK_INIT7; | |
1475 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, phy_reserved)) { | |
1476 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1477 | return PHY_ERROR; | |
1478 | } | |
1479 | } | |
1480 | if (phy_cross == NV_CROSSOVER_DETECTION_DISABLED) { | |
1481 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) { | |
1482 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1483 | return PHY_ERROR; | |
1484 | } | |
1485 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ); | |
1486 | phy_reserved &= ~PHY_REALTEK_INIT_MSK1; | |
1487 | phy_reserved |= PHY_REALTEK_INIT3; | |
1488 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved)) { | |
1489 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1490 | return PHY_ERROR; | |
1491 | } | |
1492 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) { | |
1493 | printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev)); | |
1494 | return PHY_ERROR; | |
1495 | } | |
1496 | } | |
c5e3ae88 AA |
1497 | } |
1498 | } | |
1499 | ||
eb91f61b AA |
1500 | /* some phys clear out pause advertisment on reset, set it back */ |
1501 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg); | |
1da177e4 | 1502 | |
cb52deba | 1503 | /* restart auto negotiation, power down phy */ |
1da177e4 | 1504 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
5a9a8e32 ES |
1505 | mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); |
1506 | if (phy_power_down) { | |
1507 | mii_control |= BMCR_PDOWN; | |
1508 | } | |
1da177e4 LT |
1509 | if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) { |
1510 | return PHY_ERROR; | |
1511 | } | |
1512 | ||
1513 | return 0; | |
1514 | } | |
1515 | ||
1516 | static void nv_start_rx(struct net_device *dev) | |
1517 | { | |
ac9c1897 | 1518 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1519 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1520 | u32 rx_ctrl = readl(base + NvRegReceiverControl); |
1da177e4 LT |
1521 | |
1522 | dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name); | |
1523 | /* Already running? Stop it. */ | |
f35723ec AA |
1524 | if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) { |
1525 | rx_ctrl &= ~NVREG_RCVCTL_START; | |
1526 | writel(rx_ctrl, base + NvRegReceiverControl); | |
1da177e4 LT |
1527 | pci_push(base); |
1528 | } | |
1529 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
1530 | pci_push(base); | |
f35723ec AA |
1531 | rx_ctrl |= NVREG_RCVCTL_START; |
1532 | if (np->mac_in_use) | |
1533 | rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN; | |
1534 | writel(rx_ctrl, base + NvRegReceiverControl); | |
1da177e4 LT |
1535 | dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n", |
1536 | dev->name, np->duplex, np->linkspeed); | |
1537 | pci_push(base); | |
1538 | } | |
1539 | ||
1540 | static void nv_stop_rx(struct net_device *dev) | |
1541 | { | |
f35723ec | 1542 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1543 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1544 | u32 rx_ctrl = readl(base + NvRegReceiverControl); |
1da177e4 LT |
1545 | |
1546 | dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name); | |
f35723ec AA |
1547 | if (!np->mac_in_use) |
1548 | rx_ctrl &= ~NVREG_RCVCTL_START; | |
1549 | else | |
1550 | rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN; | |
1551 | writel(rx_ctrl, base + NvRegReceiverControl); | |
1da177e4 LT |
1552 | reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0, |
1553 | NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX, | |
1554 | KERN_INFO "nv_stop_rx: ReceiverStatus remained busy"); | |
1555 | ||
1556 | udelay(NV_RXSTOP_DELAY2); | |
f35723ec AA |
1557 | if (!np->mac_in_use) |
1558 | writel(0, base + NvRegLinkSpeed); | |
1da177e4 LT |
1559 | } |
1560 | ||
1561 | static void nv_start_tx(struct net_device *dev) | |
1562 | { | |
f35723ec | 1563 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1564 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1565 | u32 tx_ctrl = readl(base + NvRegTransmitterControl); |
1da177e4 LT |
1566 | |
1567 | dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name); | |
f35723ec AA |
1568 | tx_ctrl |= NVREG_XMITCTL_START; |
1569 | if (np->mac_in_use) | |
1570 | tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN; | |
1571 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
1da177e4 LT |
1572 | pci_push(base); |
1573 | } | |
1574 | ||
1575 | static void nv_stop_tx(struct net_device *dev) | |
1576 | { | |
f35723ec | 1577 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1578 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1579 | u32 tx_ctrl = readl(base + NvRegTransmitterControl); |
1da177e4 LT |
1580 | |
1581 | dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name); | |
f35723ec AA |
1582 | if (!np->mac_in_use) |
1583 | tx_ctrl &= ~NVREG_XMITCTL_START; | |
1584 | else | |
1585 | tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN; | |
1586 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
1da177e4 LT |
1587 | reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0, |
1588 | NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX, | |
1589 | KERN_INFO "nv_stop_tx: TransmitterStatus remained busy"); | |
1590 | ||
1591 | udelay(NV_TXSTOP_DELAY2); | |
f35723ec AA |
1592 | if (!np->mac_in_use) |
1593 | writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, | |
1594 | base + NvRegTransmitPoll); | |
1da177e4 LT |
1595 | } |
1596 | ||
36b30ea9 JG |
1597 | static void nv_start_rxtx(struct net_device *dev) |
1598 | { | |
1599 | nv_start_rx(dev); | |
1600 | nv_start_tx(dev); | |
1601 | } | |
1602 | ||
1603 | static void nv_stop_rxtx(struct net_device *dev) | |
1604 | { | |
1605 | nv_stop_rx(dev); | |
1606 | nv_stop_tx(dev); | |
1607 | } | |
1608 | ||
1da177e4 LT |
1609 | static void nv_txrx_reset(struct net_device *dev) |
1610 | { | |
ac9c1897 | 1611 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
1612 | u8 __iomem *base = get_hwbase(dev); |
1613 | ||
1614 | dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name); | |
8a4ae7f2 | 1615 | writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); |
1da177e4 LT |
1616 | pci_push(base); |
1617 | udelay(NV_TXRX_RESET_DELAY); | |
8a4ae7f2 | 1618 | writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); |
1da177e4 LT |
1619 | pci_push(base); |
1620 | } | |
1621 | ||
86a0f043 AA |
1622 | static void nv_mac_reset(struct net_device *dev) |
1623 | { | |
1624 | struct fe_priv *np = netdev_priv(dev); | |
1625 | u8 __iomem *base = get_hwbase(dev); | |
4e84f9b1 | 1626 | u32 temp1, temp2, temp3; |
86a0f043 AA |
1627 | |
1628 | dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name); | |
4e84f9b1 | 1629 | |
86a0f043 AA |
1630 | writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); |
1631 | pci_push(base); | |
4e84f9b1 AA |
1632 | |
1633 | /* save registers since they will be cleared on reset */ | |
1634 | temp1 = readl(base + NvRegMacAddrA); | |
1635 | temp2 = readl(base + NvRegMacAddrB); | |
1636 | temp3 = readl(base + NvRegTransmitPoll); | |
1637 | ||
86a0f043 AA |
1638 | writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset); |
1639 | pci_push(base); | |
1640 | udelay(NV_MAC_RESET_DELAY); | |
1641 | writel(0, base + NvRegMacReset); | |
1642 | pci_push(base); | |
1643 | udelay(NV_MAC_RESET_DELAY); | |
4e84f9b1 AA |
1644 | |
1645 | /* restore saved registers */ | |
1646 | writel(temp1, base + NvRegMacAddrA); | |
1647 | writel(temp2, base + NvRegMacAddrB); | |
1648 | writel(temp3, base + NvRegTransmitPoll); | |
1649 | ||
86a0f043 AA |
1650 | writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); |
1651 | pci_push(base); | |
1652 | } | |
1653 | ||
57fff698 AA |
1654 | static void nv_get_hw_stats(struct net_device *dev) |
1655 | { | |
1656 | struct fe_priv *np = netdev_priv(dev); | |
1657 | u8 __iomem *base = get_hwbase(dev); | |
1658 | ||
1659 | np->estats.tx_bytes += readl(base + NvRegTxCnt); | |
1660 | np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt); | |
1661 | np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt); | |
1662 | np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt); | |
1663 | np->estats.tx_late_collision += readl(base + NvRegTxLateCol); | |
1664 | np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow); | |
1665 | np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier); | |
1666 | np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef); | |
1667 | np->estats.tx_retry_error += readl(base + NvRegTxRetryErr); | |
1668 | np->estats.rx_frame_error += readl(base + NvRegRxFrameErr); | |
1669 | np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte); | |
1670 | np->estats.rx_late_collision += readl(base + NvRegRxLateCol); | |
1671 | np->estats.rx_runt += readl(base + NvRegRxRunt); | |
1672 | np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong); | |
1673 | np->estats.rx_over_errors += readl(base + NvRegRxOverflow); | |
1674 | np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr); | |
1675 | np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr); | |
1676 | np->estats.rx_length_error += readl(base + NvRegRxLenErr); | |
1677 | np->estats.rx_unicast += readl(base + NvRegRxUnicast); | |
1678 | np->estats.rx_multicast += readl(base + NvRegRxMulticast); | |
1679 | np->estats.rx_broadcast += readl(base + NvRegRxBroadcast); | |
1680 | np->estats.rx_packets = | |
1681 | np->estats.rx_unicast + | |
1682 | np->estats.rx_multicast + | |
1683 | np->estats.rx_broadcast; | |
1684 | np->estats.rx_errors_total = | |
1685 | np->estats.rx_crc_errors + | |
1686 | np->estats.rx_over_errors + | |
1687 | np->estats.rx_frame_error + | |
1688 | (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) + | |
1689 | np->estats.rx_late_collision + | |
1690 | np->estats.rx_runt + | |
1691 | np->estats.rx_frame_too_long; | |
1692 | np->estats.tx_errors_total = | |
1693 | np->estats.tx_late_collision + | |
1694 | np->estats.tx_fifo_errors + | |
1695 | np->estats.tx_carrier_errors + | |
1696 | np->estats.tx_excess_deferral + | |
1697 | np->estats.tx_retry_error; | |
1698 | ||
1699 | if (np->driver_data & DEV_HAS_STATISTICS_V2) { | |
1700 | np->estats.tx_deferral += readl(base + NvRegTxDef); | |
1701 | np->estats.tx_packets += readl(base + NvRegTxFrame); | |
1702 | np->estats.rx_bytes += readl(base + NvRegRxCnt); | |
1703 | np->estats.tx_pause += readl(base + NvRegTxPause); | |
1704 | np->estats.rx_pause += readl(base + NvRegRxPause); | |
1705 | np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame); | |
1706 | } | |
9c662435 AA |
1707 | |
1708 | if (np->driver_data & DEV_HAS_STATISTICS_V3) { | |
1709 | np->estats.tx_unicast += readl(base + NvRegTxUnicast); | |
1710 | np->estats.tx_multicast += readl(base + NvRegTxMulticast); | |
1711 | np->estats.tx_broadcast += readl(base + NvRegTxBroadcast); | |
1712 | } | |
57fff698 AA |
1713 | } |
1714 | ||
1da177e4 LT |
1715 | /* |
1716 | * nv_get_stats: dev->get_stats function | |
1717 | * Get latest stats value from the nic. | |
1718 | * Called with read_lock(&dev_base_lock) held for read - | |
1719 | * only synchronized against unregister_netdevice. | |
1720 | */ | |
1721 | static struct net_device_stats *nv_get_stats(struct net_device *dev) | |
1722 | { | |
ac9c1897 | 1723 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1724 | |
21828163 | 1725 | /* If the nic supports hw counters then retrieve latest values */ |
9c662435 | 1726 | if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3)) { |
21828163 AA |
1727 | nv_get_hw_stats(dev); |
1728 | ||
1729 | /* copy to net_device stats */ | |
8148ff45 JG |
1730 | dev->stats.tx_bytes = np->estats.tx_bytes; |
1731 | dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors; | |
1732 | dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors; | |
1733 | dev->stats.rx_crc_errors = np->estats.rx_crc_errors; | |
1734 | dev->stats.rx_over_errors = np->estats.rx_over_errors; | |
1735 | dev->stats.rx_errors = np->estats.rx_errors_total; | |
1736 | dev->stats.tx_errors = np->estats.tx_errors_total; | |
21828163 | 1737 | } |
8148ff45 JG |
1738 | |
1739 | return &dev->stats; | |
1da177e4 LT |
1740 | } |
1741 | ||
1742 | /* | |
1743 | * nv_alloc_rx: fill rx ring entries. | |
1744 | * Return 1 if the allocations for the skbs failed and the | |
1745 | * rx engine is without Available descriptors | |
1746 | */ | |
1747 | static int nv_alloc_rx(struct net_device *dev) | |
1748 | { | |
ac9c1897 | 1749 | struct fe_priv *np = netdev_priv(dev); |
86b22b0d | 1750 | struct ring_desc* less_rx; |
1da177e4 | 1751 | |
86b22b0d AA |
1752 | less_rx = np->get_rx.orig; |
1753 | if (less_rx-- == np->first_rx.orig) | |
1754 | less_rx = np->last_rx.orig; | |
761fcd9e | 1755 | |
86b22b0d AA |
1756 | while (np->put_rx.orig != less_rx) { |
1757 | struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD); | |
1758 | if (skb) { | |
86b22b0d | 1759 | np->put_rx_ctx->skb = skb; |
4305b541 ACM |
1760 | np->put_rx_ctx->dma = pci_map_single(np->pci_dev, |
1761 | skb->data, | |
8b5be268 | 1762 | skb_tailroom(skb), |
4305b541 | 1763 | PCI_DMA_FROMDEVICE); |
8b5be268 | 1764 | np->put_rx_ctx->dma_len = skb_tailroom(skb); |
86b22b0d AA |
1765 | np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma); |
1766 | wmb(); | |
1767 | np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL); | |
b01867cb | 1768 | if (unlikely(np->put_rx.orig++ == np->last_rx.orig)) |
86b22b0d | 1769 | np->put_rx.orig = np->first_rx.orig; |
b01867cb | 1770 | if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) |
86b22b0d | 1771 | np->put_rx_ctx = np->first_rx_ctx; |
761fcd9e | 1772 | } else { |
86b22b0d | 1773 | return 1; |
761fcd9e | 1774 | } |
86b22b0d AA |
1775 | } |
1776 | return 0; | |
1777 | } | |
1778 | ||
1779 | static int nv_alloc_rx_optimized(struct net_device *dev) | |
1780 | { | |
1781 | struct fe_priv *np = netdev_priv(dev); | |
1782 | struct ring_desc_ex* less_rx; | |
1783 | ||
1784 | less_rx = np->get_rx.ex; | |
1785 | if (less_rx-- == np->first_rx.ex) | |
1786 | less_rx = np->last_rx.ex; | |
761fcd9e | 1787 | |
86b22b0d AA |
1788 | while (np->put_rx.ex != less_rx) { |
1789 | struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD); | |
0d63fb32 | 1790 | if (skb) { |
761fcd9e | 1791 | np->put_rx_ctx->skb = skb; |
4305b541 ACM |
1792 | np->put_rx_ctx->dma = pci_map_single(np->pci_dev, |
1793 | skb->data, | |
8b5be268 | 1794 | skb_tailroom(skb), |
4305b541 | 1795 | PCI_DMA_FROMDEVICE); |
8b5be268 | 1796 | np->put_rx_ctx->dma_len = skb_tailroom(skb); |
5bb7ea26 AV |
1797 | np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma)); |
1798 | np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma)); | |
86b22b0d AA |
1799 | wmb(); |
1800 | np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL); | |
b01867cb | 1801 | if (unlikely(np->put_rx.ex++ == np->last_rx.ex)) |
86b22b0d | 1802 | np->put_rx.ex = np->first_rx.ex; |
b01867cb | 1803 | if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) |
0d63fb32 | 1804 | np->put_rx_ctx = np->first_rx_ctx; |
1da177e4 | 1805 | } else { |
0d63fb32 | 1806 | return 1; |
ee73362c | 1807 | } |
1da177e4 | 1808 | } |
1da177e4 LT |
1809 | return 0; |
1810 | } | |
1811 | ||
e27cdba5 SH |
1812 | /* If rx bufs are exhausted called after 50ms to attempt to refresh */ |
1813 | #ifdef CONFIG_FORCEDETH_NAPI | |
1814 | static void nv_do_rx_refill(unsigned long data) | |
1815 | { | |
1816 | struct net_device *dev = (struct net_device *) data; | |
bea3348e | 1817 | struct fe_priv *np = netdev_priv(dev); |
e27cdba5 SH |
1818 | |
1819 | /* Just reschedule NAPI rx processing */ | |
288379f0 | 1820 | napi_schedule(&np->napi); |
e27cdba5 SH |
1821 | } |
1822 | #else | |
1da177e4 LT |
1823 | static void nv_do_rx_refill(unsigned long data) |
1824 | { | |
1825 | struct net_device *dev = (struct net_device *) data; | |
ac9c1897 | 1826 | struct fe_priv *np = netdev_priv(dev); |
86b22b0d | 1827 | int retcode; |
1da177e4 | 1828 | |
84b3932b AA |
1829 | if (!using_multi_irqs(dev)) { |
1830 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1831 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1832 | else | |
a7475906 | 1833 | disable_irq(np->pci_dev->irq); |
d33a73c8 AA |
1834 | } else { |
1835 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1836 | } | |
36b30ea9 | 1837 | if (!nv_optimized(np)) |
86b22b0d AA |
1838 | retcode = nv_alloc_rx(dev); |
1839 | else | |
1840 | retcode = nv_alloc_rx_optimized(dev); | |
1841 | if (retcode) { | |
84b3932b | 1842 | spin_lock_irq(&np->lock); |
1da177e4 LT |
1843 | if (!np->in_shutdown) |
1844 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
84b3932b | 1845 | spin_unlock_irq(&np->lock); |
1da177e4 | 1846 | } |
84b3932b AA |
1847 | if (!using_multi_irqs(dev)) { |
1848 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1849 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1850 | else | |
a7475906 | 1851 | enable_irq(np->pci_dev->irq); |
d33a73c8 AA |
1852 | } else { |
1853 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1854 | } | |
1da177e4 | 1855 | } |
e27cdba5 | 1856 | #endif |
1da177e4 | 1857 | |
f3b197ac | 1858 | static void nv_init_rx(struct net_device *dev) |
1da177e4 | 1859 | { |
ac9c1897 | 1860 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1861 | int i; |
36b30ea9 | 1862 | |
761fcd9e | 1863 | np->get_rx = np->put_rx = np->first_rx = np->rx_ring; |
36b30ea9 JG |
1864 | |
1865 | if (!nv_optimized(np)) | |
761fcd9e AA |
1866 | np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1]; |
1867 | else | |
1868 | np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1]; | |
1869 | np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb; | |
1870 | np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1]; | |
1da177e4 | 1871 | |
761fcd9e | 1872 | for (i = 0; i < np->rx_ring_size; i++) { |
36b30ea9 | 1873 | if (!nv_optimized(np)) { |
f82a9352 | 1874 | np->rx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1875 | np->rx_ring.orig[i].buf = 0; |
1876 | } else { | |
f82a9352 | 1877 | np->rx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
1878 | np->rx_ring.ex[i].txvlan = 0; |
1879 | np->rx_ring.ex[i].bufhigh = 0; | |
1880 | np->rx_ring.ex[i].buflow = 0; | |
1881 | } | |
1882 | np->rx_skb[i].skb = NULL; | |
1883 | np->rx_skb[i].dma = 0; | |
1884 | } | |
d81c0983 MS |
1885 | } |
1886 | ||
1887 | static void nv_init_tx(struct net_device *dev) | |
1888 | { | |
ac9c1897 | 1889 | struct fe_priv *np = netdev_priv(dev); |
d81c0983 | 1890 | int i; |
36b30ea9 | 1891 | |
761fcd9e | 1892 | np->get_tx = np->put_tx = np->first_tx = np->tx_ring; |
36b30ea9 JG |
1893 | |
1894 | if (!nv_optimized(np)) | |
761fcd9e AA |
1895 | np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1]; |
1896 | else | |
1897 | np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1]; | |
1898 | np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb; | |
1899 | np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1]; | |
3b446c3e AA |
1900 | np->tx_pkts_in_progress = 0; |
1901 | np->tx_change_owner = NULL; | |
1902 | np->tx_end_flip = NULL; | |
8f955d7f | 1903 | np->tx_stop = 0; |
d81c0983 | 1904 | |
eafa59f6 | 1905 | for (i = 0; i < np->tx_ring_size; i++) { |
36b30ea9 | 1906 | if (!nv_optimized(np)) { |
f82a9352 | 1907 | np->tx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1908 | np->tx_ring.orig[i].buf = 0; |
1909 | } else { | |
f82a9352 | 1910 | np->tx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
1911 | np->tx_ring.ex[i].txvlan = 0; |
1912 | np->tx_ring.ex[i].bufhigh = 0; | |
1913 | np->tx_ring.ex[i].buflow = 0; | |
1914 | } | |
1915 | np->tx_skb[i].skb = NULL; | |
1916 | np->tx_skb[i].dma = 0; | |
3b446c3e | 1917 | np->tx_skb[i].dma_len = 0; |
73a37079 | 1918 | np->tx_skb[i].dma_single = 0; |
3b446c3e AA |
1919 | np->tx_skb[i].first_tx_desc = NULL; |
1920 | np->tx_skb[i].next_tx_ctx = NULL; | |
ac9c1897 | 1921 | } |
d81c0983 MS |
1922 | } |
1923 | ||
1924 | static int nv_init_ring(struct net_device *dev) | |
1925 | { | |
86b22b0d AA |
1926 | struct fe_priv *np = netdev_priv(dev); |
1927 | ||
d81c0983 MS |
1928 | nv_init_tx(dev); |
1929 | nv_init_rx(dev); | |
36b30ea9 JG |
1930 | |
1931 | if (!nv_optimized(np)) | |
86b22b0d AA |
1932 | return nv_alloc_rx(dev); |
1933 | else | |
1934 | return nv_alloc_rx_optimized(dev); | |
1da177e4 LT |
1935 | } |
1936 | ||
73a37079 | 1937 | static void nv_unmap_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb) |
ac9c1897 | 1938 | { |
761fcd9e | 1939 | if (tx_skb->dma) { |
73a37079 ED |
1940 | if (tx_skb->dma_single) |
1941 | pci_unmap_single(np->pci_dev, tx_skb->dma, | |
1942 | tx_skb->dma_len, | |
1943 | PCI_DMA_TODEVICE); | |
1944 | else | |
1945 | pci_unmap_page(np->pci_dev, tx_skb->dma, | |
1946 | tx_skb->dma_len, | |
1947 | PCI_DMA_TODEVICE); | |
761fcd9e | 1948 | tx_skb->dma = 0; |
fa45459e | 1949 | } |
73a37079 ED |
1950 | } |
1951 | ||
1952 | static int nv_release_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb) | |
1953 | { | |
1954 | nv_unmap_txskb(np, tx_skb); | |
761fcd9e AA |
1955 | if (tx_skb->skb) { |
1956 | dev_kfree_skb_any(tx_skb->skb); | |
1957 | tx_skb->skb = NULL; | |
fa45459e | 1958 | return 1; |
ac9c1897 | 1959 | } |
73a37079 | 1960 | return 0; |
ac9c1897 AA |
1961 | } |
1962 | ||
1da177e4 LT |
1963 | static void nv_drain_tx(struct net_device *dev) |
1964 | { | |
ac9c1897 AA |
1965 | struct fe_priv *np = netdev_priv(dev); |
1966 | unsigned int i; | |
f3b197ac | 1967 | |
eafa59f6 | 1968 | for (i = 0; i < np->tx_ring_size; i++) { |
36b30ea9 | 1969 | if (!nv_optimized(np)) { |
f82a9352 | 1970 | np->tx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1971 | np->tx_ring.orig[i].buf = 0; |
1972 | } else { | |
f82a9352 | 1973 | np->tx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
1974 | np->tx_ring.ex[i].txvlan = 0; |
1975 | np->tx_ring.ex[i].bufhigh = 0; | |
1976 | np->tx_ring.ex[i].buflow = 0; | |
1977 | } | |
73a37079 | 1978 | if (nv_release_txskb(np, &np->tx_skb[i])) |
8148ff45 | 1979 | dev->stats.tx_dropped++; |
3b446c3e AA |
1980 | np->tx_skb[i].dma = 0; |
1981 | np->tx_skb[i].dma_len = 0; | |
73a37079 | 1982 | np->tx_skb[i].dma_single = 0; |
3b446c3e AA |
1983 | np->tx_skb[i].first_tx_desc = NULL; |
1984 | np->tx_skb[i].next_tx_ctx = NULL; | |
1da177e4 | 1985 | } |
3b446c3e AA |
1986 | np->tx_pkts_in_progress = 0; |
1987 | np->tx_change_owner = NULL; | |
1988 | np->tx_end_flip = NULL; | |
1da177e4 LT |
1989 | } |
1990 | ||
1991 | static void nv_drain_rx(struct net_device *dev) | |
1992 | { | |
ac9c1897 | 1993 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1994 | int i; |
761fcd9e | 1995 | |
eafa59f6 | 1996 | for (i = 0; i < np->rx_ring_size; i++) { |
36b30ea9 | 1997 | if (!nv_optimized(np)) { |
f82a9352 | 1998 | np->rx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1999 | np->rx_ring.orig[i].buf = 0; |
2000 | } else { | |
f82a9352 | 2001 | np->rx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
2002 | np->rx_ring.ex[i].txvlan = 0; |
2003 | np->rx_ring.ex[i].bufhigh = 0; | |
2004 | np->rx_ring.ex[i].buflow = 0; | |
2005 | } | |
1da177e4 | 2006 | wmb(); |
761fcd9e AA |
2007 | if (np->rx_skb[i].skb) { |
2008 | pci_unmap_single(np->pci_dev, np->rx_skb[i].dma, | |
4305b541 ACM |
2009 | (skb_end_pointer(np->rx_skb[i].skb) - |
2010 | np->rx_skb[i].skb->data), | |
2011 | PCI_DMA_FROMDEVICE); | |
761fcd9e AA |
2012 | dev_kfree_skb(np->rx_skb[i].skb); |
2013 | np->rx_skb[i].skb = NULL; | |
1da177e4 LT |
2014 | } |
2015 | } | |
2016 | } | |
2017 | ||
36b30ea9 | 2018 | static void nv_drain_rxtx(struct net_device *dev) |
1da177e4 LT |
2019 | { |
2020 | nv_drain_tx(dev); | |
2021 | nv_drain_rx(dev); | |
2022 | } | |
2023 | ||
761fcd9e AA |
2024 | static inline u32 nv_get_empty_tx_slots(struct fe_priv *np) |
2025 | { | |
2026 | return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size)); | |
2027 | } | |
2028 | ||
a433686c AA |
2029 | static void nv_legacybackoff_reseed(struct net_device *dev) |
2030 | { | |
2031 | u8 __iomem *base = get_hwbase(dev); | |
2032 | u32 reg; | |
2033 | u32 low; | |
2034 | int tx_status = 0; | |
2035 | ||
2036 | reg = readl(base + NvRegSlotTime) & ~NVREG_SLOTTIME_MASK; | |
2037 | get_random_bytes(&low, sizeof(low)); | |
2038 | reg |= low & NVREG_SLOTTIME_MASK; | |
2039 | ||
2040 | /* Need to stop tx before change takes effect. | |
2041 | * Caller has already gained np->lock. | |
2042 | */ | |
2043 | tx_status = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START; | |
2044 | if (tx_status) | |
2045 | nv_stop_tx(dev); | |
2046 | nv_stop_rx(dev); | |
2047 | writel(reg, base + NvRegSlotTime); | |
2048 | if (tx_status) | |
2049 | nv_start_tx(dev); | |
2050 | nv_start_rx(dev); | |
2051 | } | |
2052 | ||
2053 | /* Gear Backoff Seeds */ | |
2054 | #define BACKOFF_SEEDSET_ROWS 8 | |
2055 | #define BACKOFF_SEEDSET_LFSRS 15 | |
2056 | ||
2057 | /* Known Good seed sets */ | |
2058 | static const u32 main_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = { | |
2059 | {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874}, | |
2060 | {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 385, 761, 790, 974}, | |
2061 | {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874}, | |
2062 | {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 386, 761, 790, 974}, | |
2063 | {266, 265, 276, 585, 397, 208, 345, 355, 365, 376, 385, 396, 771, 700, 984}, | |
2064 | {266, 265, 276, 586, 397, 208, 346, 355, 365, 376, 285, 396, 771, 700, 984}, | |
2065 | {366, 365, 376, 686, 497, 308, 447, 455, 466, 476, 485, 496, 871, 800, 84}, | |
2066 | {466, 465, 476, 786, 597, 408, 547, 555, 566, 576, 585, 597, 971, 900, 184}}; | |
2067 | ||
2068 | static const u32 gear_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = { | |
2069 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, | |
2070 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2071 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 397}, | |
2072 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, | |
2073 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, | |
2074 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2075 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2076 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}}; | |
2077 | ||
2078 | static void nv_gear_backoff_reseed(struct net_device *dev) | |
2079 | { | |
2080 | u8 __iomem *base = get_hwbase(dev); | |
2081 | u32 miniseed1, miniseed2, miniseed2_reversed, miniseed3, miniseed3_reversed; | |
2082 | u32 temp, seedset, combinedSeed; | |
2083 | int i; | |
2084 | ||
2085 | /* Setup seed for free running LFSR */ | |
2086 | /* We are going to read the time stamp counter 3 times | |
2087 | and swizzle bits around to increase randomness */ | |
2088 | get_random_bytes(&miniseed1, sizeof(miniseed1)); | |
2089 | miniseed1 &= 0x0fff; | |
2090 | if (miniseed1 == 0) | |
2091 | miniseed1 = 0xabc; | |
2092 | ||
2093 | get_random_bytes(&miniseed2, sizeof(miniseed2)); | |
2094 | miniseed2 &= 0x0fff; | |
2095 | if (miniseed2 == 0) | |
2096 | miniseed2 = 0xabc; | |
2097 | miniseed2_reversed = | |
2098 | ((miniseed2 & 0xF00) >> 8) | | |
2099 | (miniseed2 & 0x0F0) | | |
2100 | ((miniseed2 & 0x00F) << 8); | |
2101 | ||
2102 | get_random_bytes(&miniseed3, sizeof(miniseed3)); | |
2103 | miniseed3 &= 0x0fff; | |
2104 | if (miniseed3 == 0) | |
2105 | miniseed3 = 0xabc; | |
2106 | miniseed3_reversed = | |
2107 | ((miniseed3 & 0xF00) >> 8) | | |
2108 | (miniseed3 & 0x0F0) | | |
2109 | ((miniseed3 & 0x00F) << 8); | |
2110 | ||
2111 | combinedSeed = ((miniseed1 ^ miniseed2_reversed) << 12) | | |
2112 | (miniseed2 ^ miniseed3_reversed); | |
2113 | ||
2114 | /* Seeds can not be zero */ | |
2115 | if ((combinedSeed & NVREG_BKOFFCTRL_SEED_MASK) == 0) | |
2116 | combinedSeed |= 0x08; | |
2117 | if ((combinedSeed & (NVREG_BKOFFCTRL_SEED_MASK << NVREG_BKOFFCTRL_GEAR)) == 0) | |
2118 | combinedSeed |= 0x8000; | |
2119 | ||
2120 | /* No need to disable tx here */ | |
2121 | temp = NVREG_BKOFFCTRL_DEFAULT | (0 << NVREG_BKOFFCTRL_SELECT); | |
2122 | temp |= combinedSeed & NVREG_BKOFFCTRL_SEED_MASK; | |
2123 | temp |= combinedSeed >> NVREG_BKOFFCTRL_GEAR; | |
2124 | writel(temp,base + NvRegBackOffControl); | |
2125 | ||
2126 | /* Setup seeds for all gear LFSRs. */ | |
2127 | get_random_bytes(&seedset, sizeof(seedset)); | |
2128 | seedset = seedset % BACKOFF_SEEDSET_ROWS; | |
2129 | for (i = 1; i <= BACKOFF_SEEDSET_LFSRS; i++) | |
2130 | { | |
2131 | temp = NVREG_BKOFFCTRL_DEFAULT | (i << NVREG_BKOFFCTRL_SELECT); | |
2132 | temp |= main_seedset[seedset][i-1] & 0x3ff; | |
2133 | temp |= ((gear_seedset[seedset][i-1] & 0x3ff) << NVREG_BKOFFCTRL_GEAR); | |
2134 | writel(temp, base + NvRegBackOffControl); | |
2135 | } | |
2136 | } | |
2137 | ||
1da177e4 LT |
2138 | /* |
2139 | * nv_start_xmit: dev->hard_start_xmit function | |
932ff279 | 2140 | * Called with netif_tx_lock held. |
1da177e4 | 2141 | */ |
61357325 | 2142 | static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 2143 | { |
ac9c1897 | 2144 | struct fe_priv *np = netdev_priv(dev); |
fa45459e | 2145 | u32 tx_flags = 0; |
ac9c1897 AA |
2146 | u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); |
2147 | unsigned int fragments = skb_shinfo(skb)->nr_frags; | |
ac9c1897 | 2148 | unsigned int i; |
fa45459e AA |
2149 | u32 offset = 0; |
2150 | u32 bcnt; | |
2151 | u32 size = skb->len-skb->data_len; | |
2152 | u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
761fcd9e | 2153 | u32 empty_slots; |
86b22b0d AA |
2154 | struct ring_desc* put_tx; |
2155 | struct ring_desc* start_tx; | |
2156 | struct ring_desc* prev_tx; | |
761fcd9e | 2157 | struct nv_skb_map* prev_tx_ctx; |
bd6ca637 | 2158 | unsigned long flags; |
fa45459e AA |
2159 | |
2160 | /* add fragments to entries count */ | |
2161 | for (i = 0; i < fragments; i++) { | |
2162 | entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) + | |
2163 | ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
2164 | } | |
ac9c1897 | 2165 | |
001eb84b | 2166 | spin_lock_irqsave(&np->lock, flags); |
761fcd9e | 2167 | empty_slots = nv_get_empty_tx_slots(np); |
445583b8 | 2168 | if (unlikely(empty_slots <= entries)) { |
ac9c1897 | 2169 | netif_stop_queue(dev); |
aaa37d2d | 2170 | np->tx_stop = 1; |
bd6ca637 | 2171 | spin_unlock_irqrestore(&np->lock, flags); |
ac9c1897 AA |
2172 | return NETDEV_TX_BUSY; |
2173 | } | |
001eb84b | 2174 | spin_unlock_irqrestore(&np->lock, flags); |
1da177e4 | 2175 | |
86b22b0d | 2176 | start_tx = put_tx = np->put_tx.orig; |
761fcd9e | 2177 | |
fa45459e AA |
2178 | /* setup the header buffer */ |
2179 | do { | |
761fcd9e AA |
2180 | prev_tx = put_tx; |
2181 | prev_tx_ctx = np->put_tx_ctx; | |
fa45459e | 2182 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; |
761fcd9e | 2183 | np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt, |
fa45459e | 2184 | PCI_DMA_TODEVICE); |
761fcd9e | 2185 | np->put_tx_ctx->dma_len = bcnt; |
73a37079 | 2186 | np->put_tx_ctx->dma_single = 1; |
86b22b0d AA |
2187 | put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma); |
2188 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); | |
445583b8 | 2189 | |
fa45459e AA |
2190 | tx_flags = np->tx_flags; |
2191 | offset += bcnt; | |
2192 | size -= bcnt; | |
445583b8 | 2193 | if (unlikely(put_tx++ == np->last_tx.orig)) |
86b22b0d | 2194 | put_tx = np->first_tx.orig; |
445583b8 | 2195 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2196 | np->put_tx_ctx = np->first_tx_ctx; |
f82a9352 | 2197 | } while (size); |
fa45459e AA |
2198 | |
2199 | /* setup the fragments */ | |
2200 | for (i = 0; i < fragments; i++) { | |
2201 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2202 | u32 size = frag->size; | |
2203 | offset = 0; | |
2204 | ||
2205 | do { | |
761fcd9e AA |
2206 | prev_tx = put_tx; |
2207 | prev_tx_ctx = np->put_tx_ctx; | |
fa45459e | 2208 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; |
761fcd9e AA |
2209 | np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt, |
2210 | PCI_DMA_TODEVICE); | |
2211 | np->put_tx_ctx->dma_len = bcnt; | |
73a37079 | 2212 | np->put_tx_ctx->dma_single = 0; |
86b22b0d AA |
2213 | put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma); |
2214 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); | |
445583b8 | 2215 | |
fa45459e AA |
2216 | offset += bcnt; |
2217 | size -= bcnt; | |
445583b8 | 2218 | if (unlikely(put_tx++ == np->last_tx.orig)) |
86b22b0d | 2219 | put_tx = np->first_tx.orig; |
445583b8 | 2220 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2221 | np->put_tx_ctx = np->first_tx_ctx; |
fa45459e AA |
2222 | } while (size); |
2223 | } | |
ac9c1897 | 2224 | |
fa45459e | 2225 | /* set last fragment flag */ |
86b22b0d | 2226 | prev_tx->flaglen |= cpu_to_le32(tx_flags_extra); |
ac9c1897 | 2227 | |
761fcd9e AA |
2228 | /* save skb in this slot's context area */ |
2229 | prev_tx_ctx->skb = skb; | |
fa45459e | 2230 | |
89114afd | 2231 | if (skb_is_gso(skb)) |
7967168c | 2232 | tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT); |
ac9c1897 | 2233 | else |
1d39ed56 | 2234 | tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ? |
84fa7933 | 2235 | NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0; |
ac9c1897 | 2236 | |
bd6ca637 | 2237 | spin_lock_irqsave(&np->lock, flags); |
164a86e4 | 2238 | |
fa45459e | 2239 | /* set tx flags */ |
86b22b0d AA |
2240 | start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra); |
2241 | np->put_tx.orig = put_tx; | |
1da177e4 | 2242 | |
bd6ca637 | 2243 | spin_unlock_irqrestore(&np->lock, flags); |
761fcd9e AA |
2244 | |
2245 | dprintk(KERN_DEBUG "%s: nv_start_xmit: entries %d queued for transmission. tx_flags_extra: %x\n", | |
2246 | dev->name, entries, tx_flags_extra); | |
1da177e4 LT |
2247 | { |
2248 | int j; | |
2249 | for (j=0; j<64; j++) { | |
2250 | if ((j%16) == 0) | |
2251 | dprintk("\n%03x:", j); | |
2252 | dprintk(" %02x", ((unsigned char*)skb->data)[j]); | |
2253 | } | |
2254 | dprintk("\n"); | |
2255 | } | |
2256 | ||
1da177e4 | 2257 | dev->trans_start = jiffies; |
8a4ae7f2 | 2258 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
ac9c1897 | 2259 | return NETDEV_TX_OK; |
1da177e4 LT |
2260 | } |
2261 | ||
61357325 SH |
2262 | static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb, |
2263 | struct net_device *dev) | |
86b22b0d AA |
2264 | { |
2265 | struct fe_priv *np = netdev_priv(dev); | |
2266 | u32 tx_flags = 0; | |
445583b8 | 2267 | u32 tx_flags_extra; |
86b22b0d AA |
2268 | unsigned int fragments = skb_shinfo(skb)->nr_frags; |
2269 | unsigned int i; | |
2270 | u32 offset = 0; | |
2271 | u32 bcnt; | |
2272 | u32 size = skb->len-skb->data_len; | |
2273 | u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
2274 | u32 empty_slots; | |
86b22b0d AA |
2275 | struct ring_desc_ex* put_tx; |
2276 | struct ring_desc_ex* start_tx; | |
2277 | struct ring_desc_ex* prev_tx; | |
2278 | struct nv_skb_map* prev_tx_ctx; | |
3b446c3e | 2279 | struct nv_skb_map* start_tx_ctx; |
bd6ca637 | 2280 | unsigned long flags; |
86b22b0d AA |
2281 | |
2282 | /* add fragments to entries count */ | |
2283 | for (i = 0; i < fragments; i++) { | |
2284 | entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) + | |
2285 | ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
2286 | } | |
2287 | ||
001eb84b | 2288 | spin_lock_irqsave(&np->lock, flags); |
86b22b0d | 2289 | empty_slots = nv_get_empty_tx_slots(np); |
445583b8 | 2290 | if (unlikely(empty_slots <= entries)) { |
86b22b0d | 2291 | netif_stop_queue(dev); |
aaa37d2d | 2292 | np->tx_stop = 1; |
bd6ca637 | 2293 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d AA |
2294 | return NETDEV_TX_BUSY; |
2295 | } | |
001eb84b | 2296 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d AA |
2297 | |
2298 | start_tx = put_tx = np->put_tx.ex; | |
3b446c3e | 2299 | start_tx_ctx = np->put_tx_ctx; |
86b22b0d AA |
2300 | |
2301 | /* setup the header buffer */ | |
2302 | do { | |
2303 | prev_tx = put_tx; | |
2304 | prev_tx_ctx = np->put_tx_ctx; | |
2305 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; | |
2306 | np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt, | |
2307 | PCI_DMA_TODEVICE); | |
2308 | np->put_tx_ctx->dma_len = bcnt; | |
73a37079 | 2309 | np->put_tx_ctx->dma_single = 1; |
5bb7ea26 AV |
2310 | put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma)); |
2311 | put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma)); | |
86b22b0d | 2312 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); |
445583b8 AA |
2313 | |
2314 | tx_flags = NV_TX2_VALID; | |
86b22b0d AA |
2315 | offset += bcnt; |
2316 | size -= bcnt; | |
445583b8 | 2317 | if (unlikely(put_tx++ == np->last_tx.ex)) |
86b22b0d | 2318 | put_tx = np->first_tx.ex; |
445583b8 | 2319 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d AA |
2320 | np->put_tx_ctx = np->first_tx_ctx; |
2321 | } while (size); | |
2322 | ||
2323 | /* setup the fragments */ | |
2324 | for (i = 0; i < fragments; i++) { | |
2325 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2326 | u32 size = frag->size; | |
2327 | offset = 0; | |
2328 | ||
2329 | do { | |
2330 | prev_tx = put_tx; | |
2331 | prev_tx_ctx = np->put_tx_ctx; | |
2332 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; | |
2333 | np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt, | |
2334 | PCI_DMA_TODEVICE); | |
2335 | np->put_tx_ctx->dma_len = bcnt; | |
73a37079 | 2336 | np->put_tx_ctx->dma_single = 0; |
5bb7ea26 AV |
2337 | put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma)); |
2338 | put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma)); | |
86b22b0d | 2339 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); |
445583b8 | 2340 | |
86b22b0d AA |
2341 | offset += bcnt; |
2342 | size -= bcnt; | |
445583b8 | 2343 | if (unlikely(put_tx++ == np->last_tx.ex)) |
86b22b0d | 2344 | put_tx = np->first_tx.ex; |
445583b8 | 2345 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d AA |
2346 | np->put_tx_ctx = np->first_tx_ctx; |
2347 | } while (size); | |
2348 | } | |
2349 | ||
2350 | /* set last fragment flag */ | |
445583b8 | 2351 | prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET); |
86b22b0d AA |
2352 | |
2353 | /* save skb in this slot's context area */ | |
2354 | prev_tx_ctx->skb = skb; | |
2355 | ||
2356 | if (skb_is_gso(skb)) | |
2357 | tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT); | |
2358 | else | |
2359 | tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ? | |
2360 | NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0; | |
2361 | ||
2362 | /* vlan tag */ | |
445583b8 AA |
2363 | if (likely(!np->vlangrp)) { |
2364 | start_tx->txvlan = 0; | |
2365 | } else { | |
2366 | if (vlan_tx_tag_present(skb)) | |
2367 | start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT | vlan_tx_tag_get(skb)); | |
2368 | else | |
2369 | start_tx->txvlan = 0; | |
86b22b0d AA |
2370 | } |
2371 | ||
bd6ca637 | 2372 | spin_lock_irqsave(&np->lock, flags); |
86b22b0d | 2373 | |
3b446c3e AA |
2374 | if (np->tx_limit) { |
2375 | /* Limit the number of outstanding tx. Setup all fragments, but | |
2376 | * do not set the VALID bit on the first descriptor. Save a pointer | |
2377 | * to that descriptor and also for next skb_map element. | |
2378 | */ | |
2379 | ||
2380 | if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) { | |
2381 | if (!np->tx_change_owner) | |
2382 | np->tx_change_owner = start_tx_ctx; | |
2383 | ||
2384 | /* remove VALID bit */ | |
2385 | tx_flags &= ~NV_TX2_VALID; | |
2386 | start_tx_ctx->first_tx_desc = start_tx; | |
2387 | start_tx_ctx->next_tx_ctx = np->put_tx_ctx; | |
2388 | np->tx_end_flip = np->put_tx_ctx; | |
2389 | } else { | |
2390 | np->tx_pkts_in_progress++; | |
2391 | } | |
2392 | } | |
2393 | ||
86b22b0d | 2394 | /* set tx flags */ |
86b22b0d AA |
2395 | start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra); |
2396 | np->put_tx.ex = put_tx; | |
2397 | ||
bd6ca637 | 2398 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d AA |
2399 | |
2400 | dprintk(KERN_DEBUG "%s: nv_start_xmit_optimized: entries %d queued for transmission. tx_flags_extra: %x\n", | |
2401 | dev->name, entries, tx_flags_extra); | |
2402 | { | |
2403 | int j; | |
2404 | for (j=0; j<64; j++) { | |
2405 | if ((j%16) == 0) | |
2406 | dprintk("\n%03x:", j); | |
2407 | dprintk(" %02x", ((unsigned char*)skb->data)[j]); | |
2408 | } | |
2409 | dprintk("\n"); | |
2410 | } | |
2411 | ||
2412 | dev->trans_start = jiffies; | |
2413 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
86b22b0d AA |
2414 | return NETDEV_TX_OK; |
2415 | } | |
2416 | ||
3b446c3e AA |
2417 | static inline void nv_tx_flip_ownership(struct net_device *dev) |
2418 | { | |
2419 | struct fe_priv *np = netdev_priv(dev); | |
2420 | ||
2421 | np->tx_pkts_in_progress--; | |
2422 | if (np->tx_change_owner) { | |
30ecce90 AV |
2423 | np->tx_change_owner->first_tx_desc->flaglen |= |
2424 | cpu_to_le32(NV_TX2_VALID); | |
3b446c3e AA |
2425 | np->tx_pkts_in_progress++; |
2426 | ||
2427 | np->tx_change_owner = np->tx_change_owner->next_tx_ctx; | |
2428 | if (np->tx_change_owner == np->tx_end_flip) | |
2429 | np->tx_change_owner = NULL; | |
2430 | ||
2431 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
2432 | } | |
2433 | } | |
2434 | ||
1da177e4 LT |
2435 | /* |
2436 | * nv_tx_done: check for completed packets, release the skbs. | |
2437 | * | |
2438 | * Caller must own np->lock. | |
2439 | */ | |
33912e72 | 2440 | static int nv_tx_done(struct net_device *dev, int limit) |
1da177e4 | 2441 | { |
ac9c1897 | 2442 | struct fe_priv *np = netdev_priv(dev); |
f82a9352 | 2443 | u32 flags; |
33912e72 | 2444 | int tx_work = 0; |
aaa37d2d | 2445 | struct ring_desc* orig_get_tx = np->get_tx.orig; |
1da177e4 | 2446 | |
445583b8 | 2447 | while ((np->get_tx.orig != np->put_tx.orig) && |
33912e72 AA |
2448 | !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID) && |
2449 | (tx_work < limit)) { | |
1da177e4 | 2450 | |
761fcd9e AA |
2451 | dprintk(KERN_DEBUG "%s: nv_tx_done: flags 0x%x.\n", |
2452 | dev->name, flags); | |
445583b8 | 2453 | |
73a37079 | 2454 | nv_unmap_txskb(np, np->get_tx_ctx); |
445583b8 | 2455 | |
1da177e4 | 2456 | if (np->desc_ver == DESC_VER_1) { |
f82a9352 | 2457 | if (flags & NV_TX_LASTPACKET) { |
445583b8 | 2458 | if (flags & NV_TX_ERROR) { |
f82a9352 | 2459 | if (flags & NV_TX_UNDERFLOW) |
8148ff45 | 2460 | dev->stats.tx_fifo_errors++; |
f82a9352 | 2461 | if (flags & NV_TX_CARRIERLOST) |
8148ff45 | 2462 | dev->stats.tx_carrier_errors++; |
a433686c AA |
2463 | if ((flags & NV_TX_RETRYERROR) && !(flags & NV_TX_RETRYCOUNT_MASK)) |
2464 | nv_legacybackoff_reseed(dev); | |
8148ff45 | 2465 | dev->stats.tx_errors++; |
ac9c1897 | 2466 | } else { |
8148ff45 JG |
2467 | dev->stats.tx_packets++; |
2468 | dev->stats.tx_bytes += np->get_tx_ctx->skb->len; | |
ac9c1897 | 2469 | } |
445583b8 AA |
2470 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2471 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2472 | tx_work++; |
1da177e4 LT |
2473 | } |
2474 | } else { | |
f82a9352 | 2475 | if (flags & NV_TX2_LASTPACKET) { |
445583b8 | 2476 | if (flags & NV_TX2_ERROR) { |
f82a9352 | 2477 | if (flags & NV_TX2_UNDERFLOW) |
8148ff45 | 2478 | dev->stats.tx_fifo_errors++; |
f82a9352 | 2479 | if (flags & NV_TX2_CARRIERLOST) |
8148ff45 | 2480 | dev->stats.tx_carrier_errors++; |
a433686c AA |
2481 | if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) |
2482 | nv_legacybackoff_reseed(dev); | |
8148ff45 | 2483 | dev->stats.tx_errors++; |
ac9c1897 | 2484 | } else { |
8148ff45 JG |
2485 | dev->stats.tx_packets++; |
2486 | dev->stats.tx_bytes += np->get_tx_ctx->skb->len; | |
f3b197ac | 2487 | } |
445583b8 AA |
2488 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2489 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2490 | tx_work++; |
1da177e4 LT |
2491 | } |
2492 | } | |
445583b8 | 2493 | if (unlikely(np->get_tx.orig++ == np->last_tx.orig)) |
86b22b0d | 2494 | np->get_tx.orig = np->first_tx.orig; |
445583b8 | 2495 | if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d AA |
2496 | np->get_tx_ctx = np->first_tx_ctx; |
2497 | } | |
445583b8 | 2498 | if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) { |
aaa37d2d | 2499 | np->tx_stop = 0; |
86b22b0d | 2500 | netif_wake_queue(dev); |
aaa37d2d | 2501 | } |
33912e72 | 2502 | return tx_work; |
86b22b0d AA |
2503 | } |
2504 | ||
33912e72 | 2505 | static int nv_tx_done_optimized(struct net_device *dev, int limit) |
86b22b0d AA |
2506 | { |
2507 | struct fe_priv *np = netdev_priv(dev); | |
2508 | u32 flags; | |
33912e72 | 2509 | int tx_work = 0; |
aaa37d2d | 2510 | struct ring_desc_ex* orig_get_tx = np->get_tx.ex; |
86b22b0d | 2511 | |
445583b8 | 2512 | while ((np->get_tx.ex != np->put_tx.ex) && |
4e16ed1b | 2513 | !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX_VALID) && |
33912e72 | 2514 | (tx_work < limit)) { |
86b22b0d AA |
2515 | |
2516 | dprintk(KERN_DEBUG "%s: nv_tx_done_optimized: flags 0x%x.\n", | |
2517 | dev->name, flags); | |
445583b8 | 2518 | |
73a37079 | 2519 | nv_unmap_txskb(np, np->get_tx_ctx); |
445583b8 | 2520 | |
86b22b0d | 2521 | if (flags & NV_TX2_LASTPACKET) { |
21828163 | 2522 | if (!(flags & NV_TX2_ERROR)) |
8148ff45 | 2523 | dev->stats.tx_packets++; |
a433686c AA |
2524 | else { |
2525 | if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) { | |
2526 | if (np->driver_data & DEV_HAS_GEAR_MODE) | |
2527 | nv_gear_backoff_reseed(dev); | |
2528 | else | |
2529 | nv_legacybackoff_reseed(dev); | |
2530 | } | |
2531 | } | |
2532 | ||
445583b8 AA |
2533 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2534 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2535 | tx_work++; |
3b446c3e AA |
2536 | |
2537 | if (np->tx_limit) { | |
2538 | nv_tx_flip_ownership(dev); | |
2539 | } | |
761fcd9e | 2540 | } |
445583b8 | 2541 | if (unlikely(np->get_tx.ex++ == np->last_tx.ex)) |
86b22b0d | 2542 | np->get_tx.ex = np->first_tx.ex; |
445583b8 | 2543 | if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2544 | np->get_tx_ctx = np->first_tx_ctx; |
1da177e4 | 2545 | } |
445583b8 | 2546 | if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) { |
aaa37d2d | 2547 | np->tx_stop = 0; |
1da177e4 | 2548 | netif_wake_queue(dev); |
aaa37d2d | 2549 | } |
33912e72 | 2550 | return tx_work; |
1da177e4 LT |
2551 | } |
2552 | ||
2553 | /* | |
2554 | * nv_tx_timeout: dev->tx_timeout function | |
932ff279 | 2555 | * Called with netif_tx_lock held. |
1da177e4 LT |
2556 | */ |
2557 | static void nv_tx_timeout(struct net_device *dev) | |
2558 | { | |
ac9c1897 | 2559 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 2560 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 | 2561 | u32 status; |
8f955d7f AA |
2562 | union ring_type put_tx; |
2563 | int saved_tx_limit; | |
d33a73c8 AA |
2564 | |
2565 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
2566 | status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; | |
2567 | else | |
2568 | status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; | |
1da177e4 | 2569 | |
d33a73c8 | 2570 | printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, status); |
1da177e4 | 2571 | |
c2dba06d MS |
2572 | { |
2573 | int i; | |
2574 | ||
761fcd9e AA |
2575 | printk(KERN_INFO "%s: Ring at %lx\n", |
2576 | dev->name, (unsigned long)np->ring_addr); | |
c2dba06d | 2577 | printk(KERN_INFO "%s: Dumping tx registers\n", dev->name); |
86a0f043 | 2578 | for (i=0;i<=np->register_size;i+= 32) { |
c2dba06d MS |
2579 | printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n", |
2580 | i, | |
2581 | readl(base + i + 0), readl(base + i + 4), | |
2582 | readl(base + i + 8), readl(base + i + 12), | |
2583 | readl(base + i + 16), readl(base + i + 20), | |
2584 | readl(base + i + 24), readl(base + i + 28)); | |
2585 | } | |
2586 | printk(KERN_INFO "%s: Dumping tx ring\n", dev->name); | |
eafa59f6 | 2587 | for (i=0;i<np->tx_ring_size;i+= 4) { |
36b30ea9 | 2588 | if (!nv_optimized(np)) { |
ee73362c | 2589 | printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n", |
f3b197ac | 2590 | i, |
f82a9352 SH |
2591 | le32_to_cpu(np->tx_ring.orig[i].buf), |
2592 | le32_to_cpu(np->tx_ring.orig[i].flaglen), | |
2593 | le32_to_cpu(np->tx_ring.orig[i+1].buf), | |
2594 | le32_to_cpu(np->tx_ring.orig[i+1].flaglen), | |
2595 | le32_to_cpu(np->tx_ring.orig[i+2].buf), | |
2596 | le32_to_cpu(np->tx_ring.orig[i+2].flaglen), | |
2597 | le32_to_cpu(np->tx_ring.orig[i+3].buf), | |
2598 | le32_to_cpu(np->tx_ring.orig[i+3].flaglen)); | |
ee73362c MS |
2599 | } else { |
2600 | printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n", | |
f3b197ac | 2601 | i, |
f82a9352 SH |
2602 | le32_to_cpu(np->tx_ring.ex[i].bufhigh), |
2603 | le32_to_cpu(np->tx_ring.ex[i].buflow), | |
2604 | le32_to_cpu(np->tx_ring.ex[i].flaglen), | |
2605 | le32_to_cpu(np->tx_ring.ex[i+1].bufhigh), | |
2606 | le32_to_cpu(np->tx_ring.ex[i+1].buflow), | |
2607 | le32_to_cpu(np->tx_ring.ex[i+1].flaglen), | |
2608 | le32_to_cpu(np->tx_ring.ex[i+2].bufhigh), | |
2609 | le32_to_cpu(np->tx_ring.ex[i+2].buflow), | |
2610 | le32_to_cpu(np->tx_ring.ex[i+2].flaglen), | |
2611 | le32_to_cpu(np->tx_ring.ex[i+3].bufhigh), | |
2612 | le32_to_cpu(np->tx_ring.ex[i+3].buflow), | |
2613 | le32_to_cpu(np->tx_ring.ex[i+3].flaglen)); | |
ee73362c | 2614 | } |
c2dba06d MS |
2615 | } |
2616 | } | |
2617 | ||
1da177e4 LT |
2618 | spin_lock_irq(&np->lock); |
2619 | ||
2620 | /* 1) stop tx engine */ | |
2621 | nv_stop_tx(dev); | |
2622 | ||
8f955d7f AA |
2623 | /* 2) complete any outstanding tx and do not give HW any limited tx pkts */ |
2624 | saved_tx_limit = np->tx_limit; | |
2625 | np->tx_limit = 0; /* prevent giving HW any limited pkts */ | |
2626 | np->tx_stop = 0; /* prevent waking tx queue */ | |
36b30ea9 | 2627 | if (!nv_optimized(np)) |
33912e72 | 2628 | nv_tx_done(dev, np->tx_ring_size); |
86b22b0d | 2629 | else |
4e16ed1b | 2630 | nv_tx_done_optimized(dev, np->tx_ring_size); |
1da177e4 | 2631 | |
8f955d7f AA |
2632 | /* save current HW postion */ |
2633 | if (np->tx_change_owner) | |
2634 | put_tx.ex = np->tx_change_owner->first_tx_desc; | |
2635 | else | |
2636 | put_tx = np->put_tx; | |
1da177e4 | 2637 | |
8f955d7f AA |
2638 | /* 3) clear all tx state */ |
2639 | nv_drain_tx(dev); | |
2640 | nv_init_tx(dev); | |
2641 | ||
2642 | /* 4) restore state to current HW position */ | |
2643 | np->get_tx = np->put_tx = put_tx; | |
2644 | np->tx_limit = saved_tx_limit; | |
3ba4d093 | 2645 | |
8f955d7f | 2646 | /* 5) restart tx engine */ |
1da177e4 | 2647 | nv_start_tx(dev); |
8f955d7f | 2648 | netif_wake_queue(dev); |
1da177e4 LT |
2649 | spin_unlock_irq(&np->lock); |
2650 | } | |
2651 | ||
22c6d143 MS |
2652 | /* |
2653 | * Called when the nic notices a mismatch between the actual data len on the | |
2654 | * wire and the len indicated in the 802 header | |
2655 | */ | |
2656 | static int nv_getlen(struct net_device *dev, void *packet, int datalen) | |
2657 | { | |
2658 | int hdrlen; /* length of the 802 header */ | |
2659 | int protolen; /* length as stored in the proto field */ | |
2660 | ||
2661 | /* 1) calculate len according to header */ | |
f82a9352 | 2662 | if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) { |
22c6d143 MS |
2663 | protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto ); |
2664 | hdrlen = VLAN_HLEN; | |
2665 | } else { | |
2666 | protolen = ntohs( ((struct ethhdr *)packet)->h_proto); | |
2667 | hdrlen = ETH_HLEN; | |
2668 | } | |
2669 | dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n", | |
2670 | dev->name, datalen, protolen, hdrlen); | |
2671 | if (protolen > ETH_DATA_LEN) | |
2672 | return datalen; /* Value in proto field not a len, no checks possible */ | |
2673 | ||
2674 | protolen += hdrlen; | |
2675 | /* consistency checks: */ | |
2676 | if (datalen > ETH_ZLEN) { | |
2677 | if (datalen >= protolen) { | |
2678 | /* more data on wire than in 802 header, trim of | |
2679 | * additional data. | |
2680 | */ | |
2681 | dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n", | |
2682 | dev->name, protolen); | |
2683 | return protolen; | |
2684 | } else { | |
2685 | /* less data on wire than mentioned in header. | |
2686 | * Discard the packet. | |
2687 | */ | |
2688 | dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n", | |
2689 | dev->name); | |
2690 | return -1; | |
2691 | } | |
2692 | } else { | |
2693 | /* short packet. Accept only if 802 values are also short */ | |
2694 | if (protolen > ETH_ZLEN) { | |
2695 | dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n", | |
2696 | dev->name); | |
2697 | return -1; | |
2698 | } | |
2699 | dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n", | |
2700 | dev->name, datalen); | |
2701 | return datalen; | |
2702 | } | |
2703 | } | |
2704 | ||
e27cdba5 | 2705 | static int nv_rx_process(struct net_device *dev, int limit) |
1da177e4 | 2706 | { |
ac9c1897 | 2707 | struct fe_priv *np = netdev_priv(dev); |
f82a9352 | 2708 | u32 flags; |
bcb5febb | 2709 | int rx_work = 0; |
b01867cb AA |
2710 | struct sk_buff *skb; |
2711 | int len; | |
1da177e4 | 2712 | |
b01867cb AA |
2713 | while((np->get_rx.orig != np->put_rx.orig) && |
2714 | !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) && | |
bcb5febb | 2715 | (rx_work < limit)) { |
1da177e4 | 2716 | |
761fcd9e AA |
2717 | dprintk(KERN_DEBUG "%s: nv_rx_process: flags 0x%x.\n", |
2718 | dev->name, flags); | |
1da177e4 | 2719 | |
1da177e4 LT |
2720 | /* |
2721 | * the packet is for us - immediately tear down the pci mapping. | |
2722 | * TODO: check if a prefetch of the first cacheline improves | |
2723 | * the performance. | |
2724 | */ | |
761fcd9e AA |
2725 | pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma, |
2726 | np->get_rx_ctx->dma_len, | |
1da177e4 | 2727 | PCI_DMA_FROMDEVICE); |
0d63fb32 AA |
2728 | skb = np->get_rx_ctx->skb; |
2729 | np->get_rx_ctx->skb = NULL; | |
1da177e4 LT |
2730 | |
2731 | { | |
2732 | int j; | |
f82a9352 | 2733 | dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags); |
1da177e4 LT |
2734 | for (j=0; j<64; j++) { |
2735 | if ((j%16) == 0) | |
2736 | dprintk("\n%03x:", j); | |
0d63fb32 | 2737 | dprintk(" %02x", ((unsigned char*)skb->data)[j]); |
1da177e4 LT |
2738 | } |
2739 | dprintk("\n"); | |
2740 | } | |
2741 | /* look at what we actually got: */ | |
2742 | if (np->desc_ver == DESC_VER_1) { | |
b01867cb AA |
2743 | if (likely(flags & NV_RX_DESCRIPTORVALID)) { |
2744 | len = flags & LEN_MASK_V1; | |
2745 | if (unlikely(flags & NV_RX_ERROR)) { | |
1ef6841b | 2746 | if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) { |
b01867cb AA |
2747 | len = nv_getlen(dev, skb->data, len); |
2748 | if (len < 0) { | |
8148ff45 | 2749 | dev->stats.rx_errors++; |
b01867cb AA |
2750 | dev_kfree_skb(skb); |
2751 | goto next_pkt; | |
2752 | } | |
2753 | } | |
2754 | /* framing errors are soft errors */ | |
1ef6841b | 2755 | else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) { |
b01867cb AA |
2756 | if (flags & NV_RX_SUBSTRACT1) { |
2757 | len--; | |
2758 | } | |
2759 | } | |
2760 | /* the rest are hard errors */ | |
2761 | else { | |
2762 | if (flags & NV_RX_MISSEDFRAME) | |
8148ff45 | 2763 | dev->stats.rx_missed_errors++; |
b01867cb | 2764 | if (flags & NV_RX_CRCERR) |
8148ff45 | 2765 | dev->stats.rx_crc_errors++; |
b01867cb | 2766 | if (flags & NV_RX_OVERFLOW) |
8148ff45 JG |
2767 | dev->stats.rx_over_errors++; |
2768 | dev->stats.rx_errors++; | |
0d63fb32 | 2769 | dev_kfree_skb(skb); |
a971c324 AA |
2770 | goto next_pkt; |
2771 | } | |
2772 | } | |
b01867cb | 2773 | } else { |
0d63fb32 | 2774 | dev_kfree_skb(skb); |
1da177e4 | 2775 | goto next_pkt; |
0d63fb32 | 2776 | } |
b01867cb AA |
2777 | } else { |
2778 | if (likely(flags & NV_RX2_DESCRIPTORVALID)) { | |
2779 | len = flags & LEN_MASK_V2; | |
2780 | if (unlikely(flags & NV_RX2_ERROR)) { | |
1ef6841b | 2781 | if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { |
b01867cb AA |
2782 | len = nv_getlen(dev, skb->data, len); |
2783 | if (len < 0) { | |
8148ff45 | 2784 | dev->stats.rx_errors++; |
b01867cb AA |
2785 | dev_kfree_skb(skb); |
2786 | goto next_pkt; | |
2787 | } | |
2788 | } | |
2789 | /* framing errors are soft errors */ | |
1ef6841b | 2790 | else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) { |
b01867cb AA |
2791 | if (flags & NV_RX2_SUBSTRACT1) { |
2792 | len--; | |
2793 | } | |
2794 | } | |
2795 | /* the rest are hard errors */ | |
2796 | else { | |
2797 | if (flags & NV_RX2_CRCERR) | |
8148ff45 | 2798 | dev->stats.rx_crc_errors++; |
b01867cb | 2799 | if (flags & NV_RX2_OVERFLOW) |
8148ff45 JG |
2800 | dev->stats.rx_over_errors++; |
2801 | dev->stats.rx_errors++; | |
0d63fb32 | 2802 | dev_kfree_skb(skb); |
a971c324 AA |
2803 | goto next_pkt; |
2804 | } | |
2805 | } | |
bfaffe8f AA |
2806 | if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */ |
2807 | ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */ | |
0d63fb32 | 2808 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
b01867cb AA |
2809 | } else { |
2810 | dev_kfree_skb(skb); | |
2811 | goto next_pkt; | |
1da177e4 LT |
2812 | } |
2813 | } | |
2814 | /* got a valid packet - forward it to the network core */ | |
1da177e4 LT |
2815 | skb_put(skb, len); |
2816 | skb->protocol = eth_type_trans(skb, dev); | |
761fcd9e AA |
2817 | dprintk(KERN_DEBUG "%s: nv_rx_process: %d bytes, proto %d accepted.\n", |
2818 | dev->name, len, skb->protocol); | |
e27cdba5 | 2819 | #ifdef CONFIG_FORCEDETH_NAPI |
b01867cb | 2820 | netif_receive_skb(skb); |
e27cdba5 | 2821 | #else |
b01867cb | 2822 | netif_rx(skb); |
e27cdba5 | 2823 | #endif |
8148ff45 JG |
2824 | dev->stats.rx_packets++; |
2825 | dev->stats.rx_bytes += len; | |
1da177e4 | 2826 | next_pkt: |
b01867cb | 2827 | if (unlikely(np->get_rx.orig++ == np->last_rx.orig)) |
86b22b0d | 2828 | np->get_rx.orig = np->first_rx.orig; |
b01867cb | 2829 | if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx)) |
86b22b0d | 2830 | np->get_rx_ctx = np->first_rx_ctx; |
bcb5febb IM |
2831 | |
2832 | rx_work++; | |
86b22b0d AA |
2833 | } |
2834 | ||
bcb5febb | 2835 | return rx_work; |
86b22b0d AA |
2836 | } |
2837 | ||
2838 | static int nv_rx_process_optimized(struct net_device *dev, int limit) | |
2839 | { | |
2840 | struct fe_priv *np = netdev_priv(dev); | |
2841 | u32 flags; | |
2842 | u32 vlanflags = 0; | |
c1b7151a | 2843 | int rx_work = 0; |
b01867cb AA |
2844 | struct sk_buff *skb; |
2845 | int len; | |
86b22b0d | 2846 | |
b01867cb AA |
2847 | while((np->get_rx.ex != np->put_rx.ex) && |
2848 | !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) && | |
c1b7151a | 2849 | (rx_work < limit)) { |
86b22b0d AA |
2850 | |
2851 | dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: flags 0x%x.\n", | |
2852 | dev->name, flags); | |
2853 | ||
86b22b0d AA |
2854 | /* |
2855 | * the packet is for us - immediately tear down the pci mapping. | |
2856 | * TODO: check if a prefetch of the first cacheline improves | |
2857 | * the performance. | |
2858 | */ | |
2859 | pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma, | |
2860 | np->get_rx_ctx->dma_len, | |
2861 | PCI_DMA_FROMDEVICE); | |
2862 | skb = np->get_rx_ctx->skb; | |
2863 | np->get_rx_ctx->skb = NULL; | |
2864 | ||
2865 | { | |
2866 | int j; | |
2867 | dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags); | |
2868 | for (j=0; j<64; j++) { | |
2869 | if ((j%16) == 0) | |
2870 | dprintk("\n%03x:", j); | |
2871 | dprintk(" %02x", ((unsigned char*)skb->data)[j]); | |
2872 | } | |
2873 | dprintk("\n"); | |
761fcd9e | 2874 | } |
86b22b0d | 2875 | /* look at what we actually got: */ |
b01867cb AA |
2876 | if (likely(flags & NV_RX2_DESCRIPTORVALID)) { |
2877 | len = flags & LEN_MASK_V2; | |
2878 | if (unlikely(flags & NV_RX2_ERROR)) { | |
1ef6841b | 2879 | if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { |
b01867cb AA |
2880 | len = nv_getlen(dev, skb->data, len); |
2881 | if (len < 0) { | |
b01867cb AA |
2882 | dev_kfree_skb(skb); |
2883 | goto next_pkt; | |
2884 | } | |
2885 | } | |
2886 | /* framing errors are soft errors */ | |
1ef6841b | 2887 | else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) { |
b01867cb AA |
2888 | if (flags & NV_RX2_SUBSTRACT1) { |
2889 | len--; | |
2890 | } | |
2891 | } | |
2892 | /* the rest are hard errors */ | |
2893 | else { | |
86b22b0d AA |
2894 | dev_kfree_skb(skb); |
2895 | goto next_pkt; | |
2896 | } | |
2897 | } | |
b01867cb | 2898 | |
bfaffe8f AA |
2899 | if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */ |
2900 | ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */ | |
86b22b0d | 2901 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
b01867cb AA |
2902 | |
2903 | /* got a valid packet - forward it to the network core */ | |
2904 | skb_put(skb, len); | |
2905 | skb->protocol = eth_type_trans(skb, dev); | |
2906 | prefetch(skb->data); | |
2907 | ||
2908 | dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: %d bytes, proto %d accepted.\n", | |
2909 | dev->name, len, skb->protocol); | |
2910 | ||
2911 | if (likely(!np->vlangrp)) { | |
86b22b0d | 2912 | #ifdef CONFIG_FORCEDETH_NAPI |
b01867cb | 2913 | netif_receive_skb(skb); |
86b22b0d | 2914 | #else |
b01867cb | 2915 | netif_rx(skb); |
86b22b0d | 2916 | #endif |
b01867cb AA |
2917 | } else { |
2918 | vlanflags = le32_to_cpu(np->get_rx.ex->buflow); | |
2919 | if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) { | |
2920 | #ifdef CONFIG_FORCEDETH_NAPI | |
2921 | vlan_hwaccel_receive_skb(skb, np->vlangrp, | |
2922 | vlanflags & NV_RX3_VLAN_TAG_MASK); | |
2923 | #else | |
2924 | vlan_hwaccel_rx(skb, np->vlangrp, | |
2925 | vlanflags & NV_RX3_VLAN_TAG_MASK); | |
2926 | #endif | |
2927 | } else { | |
2928 | #ifdef CONFIG_FORCEDETH_NAPI | |
2929 | netif_receive_skb(skb); | |
2930 | #else | |
2931 | netif_rx(skb); | |
2932 | #endif | |
2933 | } | |
2934 | } | |
2935 | ||
8148ff45 JG |
2936 | dev->stats.rx_packets++; |
2937 | dev->stats.rx_bytes += len; | |
b01867cb AA |
2938 | } else { |
2939 | dev_kfree_skb(skb); | |
2940 | } | |
86b22b0d | 2941 | next_pkt: |
b01867cb | 2942 | if (unlikely(np->get_rx.ex++ == np->last_rx.ex)) |
86b22b0d | 2943 | np->get_rx.ex = np->first_rx.ex; |
b01867cb | 2944 | if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx)) |
761fcd9e | 2945 | np->get_rx_ctx = np->first_rx_ctx; |
c1b7151a IM |
2946 | |
2947 | rx_work++; | |
1da177e4 | 2948 | } |
e27cdba5 | 2949 | |
c1b7151a | 2950 | return rx_work; |
1da177e4 LT |
2951 | } |
2952 | ||
d81c0983 MS |
2953 | static void set_bufsize(struct net_device *dev) |
2954 | { | |
2955 | struct fe_priv *np = netdev_priv(dev); | |
2956 | ||
2957 | if (dev->mtu <= ETH_DATA_LEN) | |
2958 | np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS; | |
2959 | else | |
2960 | np->rx_buf_sz = dev->mtu + NV_RX_HEADERS; | |
2961 | } | |
2962 | ||
1da177e4 LT |
2963 | /* |
2964 | * nv_change_mtu: dev->change_mtu function | |
2965 | * Called with dev_base_lock held for read. | |
2966 | */ | |
2967 | static int nv_change_mtu(struct net_device *dev, int new_mtu) | |
2968 | { | |
ac9c1897 | 2969 | struct fe_priv *np = netdev_priv(dev); |
d81c0983 MS |
2970 | int old_mtu; |
2971 | ||
2972 | if (new_mtu < 64 || new_mtu > np->pkt_limit) | |
1da177e4 | 2973 | return -EINVAL; |
d81c0983 MS |
2974 | |
2975 | old_mtu = dev->mtu; | |
1da177e4 | 2976 | dev->mtu = new_mtu; |
d81c0983 MS |
2977 | |
2978 | /* return early if the buffer sizes will not change */ | |
2979 | if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN) | |
2980 | return 0; | |
2981 | if (old_mtu == new_mtu) | |
2982 | return 0; | |
2983 | ||
2984 | /* synchronized against open : rtnl_lock() held by caller */ | |
2985 | if (netif_running(dev)) { | |
25097d4b | 2986 | u8 __iomem *base = get_hwbase(dev); |
d81c0983 MS |
2987 | /* |
2988 | * It seems that the nic preloads valid ring entries into an | |
2989 | * internal buffer. The procedure for flushing everything is | |
2990 | * guessed, there is probably a simpler approach. | |
2991 | * Changing the MTU is a rare event, it shouldn't matter. | |
2992 | */ | |
84b3932b | 2993 | nv_disable_irq(dev); |
08d93575 | 2994 | nv_napi_disable(dev); |
932ff279 | 2995 | netif_tx_lock_bh(dev); |
e308a5d8 | 2996 | netif_addr_lock(dev); |
d81c0983 MS |
2997 | spin_lock(&np->lock); |
2998 | /* stop engines */ | |
36b30ea9 | 2999 | nv_stop_rxtx(dev); |
d81c0983 MS |
3000 | nv_txrx_reset(dev); |
3001 | /* drain rx queue */ | |
36b30ea9 | 3002 | nv_drain_rxtx(dev); |
d81c0983 | 3003 | /* reinit driver view of the rx queue */ |
d81c0983 | 3004 | set_bufsize(dev); |
eafa59f6 | 3005 | if (nv_init_ring(dev)) { |
d81c0983 MS |
3006 | if (!np->in_shutdown) |
3007 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
3008 | } | |
3009 | /* reinit nic view of the rx queue */ | |
3010 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
0832b25a | 3011 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
eafa59f6 | 3012 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
d81c0983 MS |
3013 | base + NvRegRingSizes); |
3014 | pci_push(base); | |
8a4ae7f2 | 3015 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
d81c0983 MS |
3016 | pci_push(base); |
3017 | ||
3018 | /* restart rx engine */ | |
36b30ea9 | 3019 | nv_start_rxtx(dev); |
d81c0983 | 3020 | spin_unlock(&np->lock); |
e308a5d8 | 3021 | netif_addr_unlock(dev); |
932ff279 | 3022 | netif_tx_unlock_bh(dev); |
08d93575 | 3023 | nv_napi_enable(dev); |
84b3932b | 3024 | nv_enable_irq(dev); |
d81c0983 | 3025 | } |
1da177e4 LT |
3026 | return 0; |
3027 | } | |
3028 | ||
72b31782 MS |
3029 | static void nv_copy_mac_to_hw(struct net_device *dev) |
3030 | { | |
25097d4b | 3031 | u8 __iomem *base = get_hwbase(dev); |
72b31782 MS |
3032 | u32 mac[2]; |
3033 | ||
3034 | mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) + | |
3035 | (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24); | |
3036 | mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8); | |
3037 | ||
3038 | writel(mac[0], base + NvRegMacAddrA); | |
3039 | writel(mac[1], base + NvRegMacAddrB); | |
3040 | } | |
3041 | ||
3042 | /* | |
3043 | * nv_set_mac_address: dev->set_mac_address function | |
3044 | * Called with rtnl_lock() held. | |
3045 | */ | |
3046 | static int nv_set_mac_address(struct net_device *dev, void *addr) | |
3047 | { | |
ac9c1897 | 3048 | struct fe_priv *np = netdev_priv(dev); |
72b31782 MS |
3049 | struct sockaddr *macaddr = (struct sockaddr*)addr; |
3050 | ||
f82a9352 | 3051 | if (!is_valid_ether_addr(macaddr->sa_data)) |
72b31782 MS |
3052 | return -EADDRNOTAVAIL; |
3053 | ||
3054 | /* synchronized against open : rtnl_lock() held by caller */ | |
3055 | memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN); | |
3056 | ||
3057 | if (netif_running(dev)) { | |
932ff279 | 3058 | netif_tx_lock_bh(dev); |
e308a5d8 | 3059 | netif_addr_lock(dev); |
72b31782 MS |
3060 | spin_lock_irq(&np->lock); |
3061 | ||
3062 | /* stop rx engine */ | |
3063 | nv_stop_rx(dev); | |
3064 | ||
3065 | /* set mac address */ | |
3066 | nv_copy_mac_to_hw(dev); | |
3067 | ||
3068 | /* restart rx engine */ | |
3069 | nv_start_rx(dev); | |
3070 | spin_unlock_irq(&np->lock); | |
e308a5d8 | 3071 | netif_addr_unlock(dev); |
932ff279 | 3072 | netif_tx_unlock_bh(dev); |
72b31782 MS |
3073 | } else { |
3074 | nv_copy_mac_to_hw(dev); | |
3075 | } | |
3076 | return 0; | |
3077 | } | |
3078 | ||
1da177e4 LT |
3079 | /* |
3080 | * nv_set_multicast: dev->set_multicast function | |
932ff279 | 3081 | * Called with netif_tx_lock held. |
1da177e4 LT |
3082 | */ |
3083 | static void nv_set_multicast(struct net_device *dev) | |
3084 | { | |
ac9c1897 | 3085 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
3086 | u8 __iomem *base = get_hwbase(dev); |
3087 | u32 addr[2]; | |
3088 | u32 mask[2]; | |
b6d0773f | 3089 | u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX; |
1da177e4 LT |
3090 | |
3091 | memset(addr, 0, sizeof(addr)); | |
3092 | memset(mask, 0, sizeof(mask)); | |
3093 | ||
3094 | if (dev->flags & IFF_PROMISC) { | |
b6d0773f | 3095 | pff |= NVREG_PFF_PROMISC; |
1da177e4 | 3096 | } else { |
b6d0773f | 3097 | pff |= NVREG_PFF_MYADDR; |
1da177e4 | 3098 | |
48e2f183 | 3099 | if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) { |
1da177e4 LT |
3100 | u32 alwaysOff[2]; |
3101 | u32 alwaysOn[2]; | |
3102 | ||
3103 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff; | |
3104 | if (dev->flags & IFF_ALLMULTI) { | |
3105 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0; | |
3106 | } else { | |
3107 | struct dev_mc_list *walk; | |
3108 | ||
48e2f183 | 3109 | netdev_for_each_mc_addr(walk, dev) { |
1da177e4 | 3110 | u32 a, b; |
5bb7ea26 AV |
3111 | a = le32_to_cpu(*(__le32 *) walk->dmi_addr); |
3112 | b = le16_to_cpu(*(__le16 *) (&walk->dmi_addr[4])); | |
1da177e4 LT |
3113 | alwaysOn[0] &= a; |
3114 | alwaysOff[0] &= ~a; | |
3115 | alwaysOn[1] &= b; | |
3116 | alwaysOff[1] &= ~b; | |
1da177e4 LT |
3117 | } |
3118 | } | |
3119 | addr[0] = alwaysOn[0]; | |
3120 | addr[1] = alwaysOn[1]; | |
3121 | mask[0] = alwaysOn[0] | alwaysOff[0]; | |
3122 | mask[1] = alwaysOn[1] | alwaysOff[1]; | |
bb9a4fd1 AA |
3123 | } else { |
3124 | mask[0] = NVREG_MCASTMASKA_NONE; | |
3125 | mask[1] = NVREG_MCASTMASKB_NONE; | |
1da177e4 LT |
3126 | } |
3127 | } | |
3128 | addr[0] |= NVREG_MCASTADDRA_FORCE; | |
3129 | pff |= NVREG_PFF_ALWAYS; | |
3130 | spin_lock_irq(&np->lock); | |
3131 | nv_stop_rx(dev); | |
3132 | writel(addr[0], base + NvRegMulticastAddrA); | |
3133 | writel(addr[1], base + NvRegMulticastAddrB); | |
3134 | writel(mask[0], base + NvRegMulticastMaskA); | |
3135 | writel(mask[1], base + NvRegMulticastMaskB); | |
3136 | writel(pff, base + NvRegPacketFilterFlags); | |
3137 | dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n", | |
3138 | dev->name); | |
3139 | nv_start_rx(dev); | |
3140 | spin_unlock_irq(&np->lock); | |
3141 | } | |
3142 | ||
c7985051 | 3143 | static void nv_update_pause(struct net_device *dev, u32 pause_flags) |
b6d0773f AA |
3144 | { |
3145 | struct fe_priv *np = netdev_priv(dev); | |
3146 | u8 __iomem *base = get_hwbase(dev); | |
3147 | ||
3148 | np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE); | |
3149 | ||
3150 | if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) { | |
3151 | u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX; | |
3152 | if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) { | |
3153 | writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags); | |
3154 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3155 | } else { | |
3156 | writel(pff, base + NvRegPacketFilterFlags); | |
3157 | } | |
3158 | } | |
3159 | if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) { | |
3160 | u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX; | |
3161 | if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) { | |
5289b4c4 AA |
3162 | u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1; |
3163 | if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) | |
3164 | pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2; | |
9a33e883 | 3165 | if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3) { |
5289b4c4 | 3166 | pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3; |
9a33e883 AA |
3167 | /* limit the number of tx pause frames to a default of 8 */ |
3168 | writel(readl(base + NvRegTxPauseFrameLimit)|NVREG_TX_PAUSEFRAMELIMIT_ENABLE, base + NvRegTxPauseFrameLimit); | |
3169 | } | |
5289b4c4 | 3170 | writel(pause_enable, base + NvRegTxPauseFrame); |
b6d0773f AA |
3171 | writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1); |
3172 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3173 | } else { | |
3174 | writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); | |
3175 | writel(regmisc, base + NvRegMisc1); | |
3176 | } | |
3177 | } | |
3178 | } | |
3179 | ||
4ea7f299 AA |
3180 | /** |
3181 | * nv_update_linkspeed: Setup the MAC according to the link partner | |
3182 | * @dev: Network device to be configured | |
3183 | * | |
3184 | * The function queries the PHY and checks if there is a link partner. | |
3185 | * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is | |
3186 | * set to 10 MBit HD. | |
3187 | * | |
3188 | * The function returns 0 if there is no link partner and 1 if there is | |
3189 | * a good link partner. | |
3190 | */ | |
1da177e4 LT |
3191 | static int nv_update_linkspeed(struct net_device *dev) |
3192 | { | |
ac9c1897 | 3193 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 3194 | u8 __iomem *base = get_hwbase(dev); |
eb91f61b AA |
3195 | int adv = 0; |
3196 | int lpa = 0; | |
3197 | int adv_lpa, adv_pause, lpa_pause; | |
1da177e4 LT |
3198 | int newls = np->linkspeed; |
3199 | int newdup = np->duplex; | |
3200 | int mii_status; | |
3201 | int retval = 0; | |
9744e218 | 3202 | u32 control_1000, status_1000, phyreg, pause_flags, txreg; |
b2976d23 | 3203 | u32 txrxFlags = 0; |
fd9b558c | 3204 | u32 phy_exp; |
1da177e4 LT |
3205 | |
3206 | /* BMSR_LSTATUS is latched, read it twice: | |
3207 | * we want the current value. | |
3208 | */ | |
3209 | mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
3210 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
3211 | ||
3212 | if (!(mii_status & BMSR_LSTATUS)) { | |
3213 | dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n", | |
3214 | dev->name); | |
3215 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3216 | newdup = 0; | |
3217 | retval = 0; | |
3218 | goto set_speed; | |
3219 | } | |
3220 | ||
3221 | if (np->autoneg == 0) { | |
3222 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n", | |
3223 | dev->name, np->fixed_mode); | |
3224 | if (np->fixed_mode & LPA_100FULL) { | |
3225 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
3226 | newdup = 1; | |
3227 | } else if (np->fixed_mode & LPA_100HALF) { | |
3228 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
3229 | newdup = 0; | |
3230 | } else if (np->fixed_mode & LPA_10FULL) { | |
3231 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3232 | newdup = 1; | |
3233 | } else { | |
3234 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3235 | newdup = 0; | |
3236 | } | |
3237 | retval = 1; | |
3238 | goto set_speed; | |
3239 | } | |
3240 | /* check auto negotiation is complete */ | |
3241 | if (!(mii_status & BMSR_ANEGCOMPLETE)) { | |
3242 | /* still in autonegotiation - configure nic for 10 MBit HD and wait. */ | |
3243 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3244 | newdup = 0; | |
3245 | retval = 0; | |
3246 | dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name); | |
3247 | goto set_speed; | |
3248 | } | |
3249 | ||
b6d0773f AA |
3250 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); |
3251 | lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ); | |
3252 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n", | |
3253 | dev->name, adv, lpa); | |
3254 | ||
1da177e4 LT |
3255 | retval = 1; |
3256 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b AA |
3257 | control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
3258 | status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ); | |
1da177e4 LT |
3259 | |
3260 | if ((control_1000 & ADVERTISE_1000FULL) && | |
3261 | (status_1000 & LPA_1000FULL)) { | |
3262 | dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n", | |
3263 | dev->name); | |
3264 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000; | |
3265 | newdup = 1; | |
3266 | goto set_speed; | |
3267 | } | |
3268 | } | |
3269 | ||
1da177e4 | 3270 | /* FIXME: handle parallel detection properly */ |
eb91f61b AA |
3271 | adv_lpa = lpa & adv; |
3272 | if (adv_lpa & LPA_100FULL) { | |
1da177e4 LT |
3273 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
3274 | newdup = 1; | |
eb91f61b | 3275 | } else if (adv_lpa & LPA_100HALF) { |
1da177e4 LT |
3276 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
3277 | newdup = 0; | |
eb91f61b | 3278 | } else if (adv_lpa & LPA_10FULL) { |
1da177e4 LT |
3279 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3280 | newdup = 1; | |
eb91f61b | 3281 | } else if (adv_lpa & LPA_10HALF) { |
1da177e4 LT |
3282 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3283 | newdup = 0; | |
3284 | } else { | |
eb91f61b | 3285 | dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, adv_lpa); |
1da177e4 LT |
3286 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3287 | newdup = 0; | |
3288 | } | |
3289 | ||
3290 | set_speed: | |
3291 | if (np->duplex == newdup && np->linkspeed == newls) | |
3292 | return retval; | |
3293 | ||
3294 | dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n", | |
3295 | dev->name, np->linkspeed, np->duplex, newls, newdup); | |
3296 | ||
3297 | np->duplex = newdup; | |
3298 | np->linkspeed = newls; | |
3299 | ||
b2976d23 AA |
3300 | /* The transmitter and receiver must be restarted for safe update */ |
3301 | if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) { | |
3302 | txrxFlags |= NV_RESTART_TX; | |
3303 | nv_stop_tx(dev); | |
3304 | } | |
3305 | if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) { | |
3306 | txrxFlags |= NV_RESTART_RX; | |
3307 | nv_stop_rx(dev); | |
3308 | } | |
3309 | ||
1da177e4 | 3310 | if (np->gigabit == PHY_GIGABIT) { |
a433686c | 3311 | phyreg = readl(base + NvRegSlotTime); |
1da177e4 | 3312 | phyreg &= ~(0x3FF00); |
a433686c AA |
3313 | if (((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) || |
3314 | ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)) | |
3315 | phyreg |= NVREG_SLOTTIME_10_100_FULL; | |
1da177e4 | 3316 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000) |
a433686c AA |
3317 | phyreg |= NVREG_SLOTTIME_1000_FULL; |
3318 | writel(phyreg, base + NvRegSlotTime); | |
1da177e4 LT |
3319 | } |
3320 | ||
3321 | phyreg = readl(base + NvRegPhyInterface); | |
3322 | phyreg &= ~(PHY_HALF|PHY_100|PHY_1000); | |
3323 | if (np->duplex == 0) | |
3324 | phyreg |= PHY_HALF; | |
3325 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100) | |
3326 | phyreg |= PHY_100; | |
3327 | else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) | |
3328 | phyreg |= PHY_1000; | |
3329 | writel(phyreg, base + NvRegPhyInterface); | |
3330 | ||
fd9b558c | 3331 | phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */ |
9744e218 | 3332 | if (phyreg & PHY_RGMII) { |
fd9b558c | 3333 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) { |
9744e218 | 3334 | txreg = NVREG_TX_DEFERRAL_RGMII_1000; |
fd9b558c AA |
3335 | } else { |
3336 | if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) { | |
3337 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10) | |
3338 | txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10; | |
3339 | else | |
3340 | txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100; | |
3341 | } else { | |
3342 | txreg = NVREG_TX_DEFERRAL_RGMII_10_100; | |
3343 | } | |
3344 | } | |
9744e218 | 3345 | } else { |
fd9b558c AA |
3346 | if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) |
3347 | txreg = NVREG_TX_DEFERRAL_MII_STRETCH; | |
3348 | else | |
3349 | txreg = NVREG_TX_DEFERRAL_DEFAULT; | |
9744e218 AA |
3350 | } |
3351 | writel(txreg, base + NvRegTxDeferral); | |
3352 | ||
95d161cb AA |
3353 | if (np->desc_ver == DESC_VER_1) { |
3354 | txreg = NVREG_TX_WM_DESC1_DEFAULT; | |
3355 | } else { | |
3356 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) | |
3357 | txreg = NVREG_TX_WM_DESC2_3_1000; | |
3358 | else | |
3359 | txreg = NVREG_TX_WM_DESC2_3_DEFAULT; | |
3360 | } | |
3361 | writel(txreg, base + NvRegTxWatermark); | |
3362 | ||
1da177e4 LT |
3363 | writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD), |
3364 | base + NvRegMisc1); | |
3365 | pci_push(base); | |
3366 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
3367 | pci_push(base); | |
3368 | ||
b6d0773f AA |
3369 | pause_flags = 0; |
3370 | /* setup pause frame */ | |
eb91f61b | 3371 | if (np->duplex != 0) { |
b6d0773f AA |
3372 | if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) { |
3373 | adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM); | |
3374 | lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM); | |
3375 | ||
3376 | switch (adv_pause) { | |
f82a9352 | 3377 | case ADVERTISE_PAUSE_CAP: |
b6d0773f AA |
3378 | if (lpa_pause & LPA_PAUSE_CAP) { |
3379 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3380 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
3381 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3382 | } | |
3383 | break; | |
f82a9352 | 3384 | case ADVERTISE_PAUSE_ASYM: |
b6d0773f AA |
3385 | if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM)) |
3386 | { | |
3387 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3388 | } | |
3389 | break; | |
f82a9352 | 3390 | case ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM: |
b6d0773f AA |
3391 | if (lpa_pause & LPA_PAUSE_CAP) |
3392 | { | |
3393 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3394 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
3395 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3396 | } | |
3397 | if (lpa_pause == LPA_PAUSE_ASYM) | |
3398 | { | |
3399 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3400 | } | |
3401 | break; | |
f3b197ac | 3402 | } |
eb91f61b | 3403 | } else { |
b6d0773f | 3404 | pause_flags = np->pause_flags; |
eb91f61b AA |
3405 | } |
3406 | } | |
b6d0773f | 3407 | nv_update_pause(dev, pause_flags); |
eb91f61b | 3408 | |
b2976d23 AA |
3409 | if (txrxFlags & NV_RESTART_TX) |
3410 | nv_start_tx(dev); | |
3411 | if (txrxFlags & NV_RESTART_RX) | |
3412 | nv_start_rx(dev); | |
3413 | ||
1da177e4 LT |
3414 | return retval; |
3415 | } | |
3416 | ||
3417 | static void nv_linkchange(struct net_device *dev) | |
3418 | { | |
3419 | if (nv_update_linkspeed(dev)) { | |
4ea7f299 | 3420 | if (!netif_carrier_ok(dev)) { |
1da177e4 LT |
3421 | netif_carrier_on(dev); |
3422 | printk(KERN_INFO "%s: link up.\n", dev->name); | |
88d7d8b0 | 3423 | nv_txrx_gate(dev, false); |
4ea7f299 | 3424 | nv_start_rx(dev); |
1da177e4 | 3425 | } |
1da177e4 LT |
3426 | } else { |
3427 | if (netif_carrier_ok(dev)) { | |
3428 | netif_carrier_off(dev); | |
3429 | printk(KERN_INFO "%s: link down.\n", dev->name); | |
88d7d8b0 | 3430 | nv_txrx_gate(dev, true); |
1da177e4 LT |
3431 | nv_stop_rx(dev); |
3432 | } | |
3433 | } | |
3434 | } | |
3435 | ||
3436 | static void nv_link_irq(struct net_device *dev) | |
3437 | { | |
3438 | u8 __iomem *base = get_hwbase(dev); | |
3439 | u32 miistat; | |
3440 | ||
3441 | miistat = readl(base + NvRegMIIStatus); | |
eb798428 | 3442 | writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus); |
1da177e4 LT |
3443 | dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat); |
3444 | ||
3445 | if (miistat & (NVREG_MIISTAT_LINKCHANGE)) | |
3446 | nv_linkchange(dev); | |
3447 | dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name); | |
3448 | } | |
3449 | ||
4db0ee17 AA |
3450 | static void nv_msi_workaround(struct fe_priv *np) |
3451 | { | |
3452 | ||
3453 | /* Need to toggle the msi irq mask within the ethernet device, | |
3454 | * otherwise, future interrupts will not be detected. | |
3455 | */ | |
3456 | if (np->msi_flags & NV_MSI_ENABLED) { | |
3457 | u8 __iomem *base = np->base; | |
3458 | ||
3459 | writel(0, base + NvRegMSIIrqMask); | |
3460 | writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask); | |
3461 | } | |
3462 | } | |
3463 | ||
4145ade2 AA |
3464 | static inline int nv_change_interrupt_mode(struct net_device *dev, int total_work) |
3465 | { | |
3466 | struct fe_priv *np = netdev_priv(dev); | |
3467 | ||
3468 | if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC) { | |
3469 | if (total_work > NV_DYNAMIC_THRESHOLD) { | |
3470 | /* transition to poll based interrupts */ | |
3471 | np->quiet_count = 0; | |
3472 | if (np->irqmask != NVREG_IRQMASK_CPU) { | |
3473 | np->irqmask = NVREG_IRQMASK_CPU; | |
3474 | return 1; | |
3475 | } | |
3476 | } else { | |
3477 | if (np->quiet_count < NV_DYNAMIC_MAX_QUIET_COUNT) { | |
3478 | np->quiet_count++; | |
3479 | } else { | |
3480 | /* reached a period of low activity, switch | |
3481 | to per tx/rx packet interrupts */ | |
3482 | if (np->irqmask != NVREG_IRQMASK_THROUGHPUT) { | |
3483 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
3484 | return 1; | |
3485 | } | |
3486 | } | |
3487 | } | |
3488 | } | |
3489 | return 0; | |
3490 | } | |
3491 | ||
7d12e780 | 3492 | static irqreturn_t nv_nic_irq(int foo, void *data) |
1da177e4 LT |
3493 | { |
3494 | struct net_device *dev = (struct net_device *) data; | |
ac9c1897 | 3495 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 3496 | u8 __iomem *base = get_hwbase(dev); |
4145ade2 AA |
3497 | #ifndef CONFIG_FORCEDETH_NAPI |
3498 | int total_work = 0; | |
3499 | int loop_count = 0; | |
3500 | #endif | |
1da177e4 LT |
3501 | |
3502 | dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name); | |
3503 | ||
b67874ac AA |
3504 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
3505 | np->events = readl(base + NvRegIrqStatus); | |
1b2bb76f | 3506 | writel(np->events, base + NvRegIrqStatus); |
b67874ac AA |
3507 | } else { |
3508 | np->events = readl(base + NvRegMSIXIrqStatus); | |
1b2bb76f | 3509 | writel(np->events, base + NvRegMSIXIrqStatus); |
b67874ac AA |
3510 | } |
3511 | dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, np->events); | |
3512 | if (!(np->events & np->irqmask)) | |
3513 | return IRQ_NONE; | |
1da177e4 | 3514 | |
b67874ac | 3515 | nv_msi_workaround(np); |
4db0ee17 | 3516 | |
f27e6f39 | 3517 | #ifdef CONFIG_FORCEDETH_NAPI |
78c29bd9 ED |
3518 | if (napi_schedule_prep(&np->napi)) { |
3519 | /* | |
3520 | * Disable further irq's (msix not enabled with napi) | |
3521 | */ | |
3522 | writel(0, base + NvRegIrqMask); | |
3523 | __napi_schedule(&np->napi); | |
3524 | } | |
f0734ab6 | 3525 | |
f0734ab6 | 3526 | #else |
4145ade2 AA |
3527 | do |
3528 | { | |
3529 | int work = 0; | |
3530 | if ((work = nv_rx_process(dev, RX_WORK_PER_LOOP))) { | |
3531 | if (unlikely(nv_alloc_rx(dev))) { | |
3532 | spin_lock(&np->lock); | |
3533 | if (!np->in_shutdown) | |
3534 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
3535 | spin_unlock(&np->lock); | |
3536 | } | |
c5cf9101 | 3537 | } |
4145ade2 AA |
3538 | |
3539 | spin_lock(&np->lock); | |
3540 | work += nv_tx_done(dev, TX_WORK_PER_LOOP); | |
3541 | spin_unlock(&np->lock); | |
3542 | ||
3543 | if (!work) | |
3544 | break; | |
3545 | ||
3546 | total_work += work; | |
3547 | ||
3548 | loop_count++; | |
3549 | } | |
3550 | while (loop_count < max_interrupt_work); | |
3551 | ||
3552 | if (nv_change_interrupt_mode(dev, total_work)) { | |
3553 | /* setup new irq mask */ | |
3554 | writel(np->irqmask, base + NvRegIrqMask); | |
b67874ac AA |
3555 | } |
3556 | ||
3557 | if (unlikely(np->events & NVREG_IRQ_LINK)) { | |
3558 | spin_lock(&np->lock); | |
3559 | nv_link_irq(dev); | |
3560 | spin_unlock(&np->lock); | |
3561 | } | |
3562 | if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) { | |
3563 | spin_lock(&np->lock); | |
3564 | nv_linkchange(dev); | |
3565 | spin_unlock(&np->lock); | |
3566 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
3567 | } | |
3568 | if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) { | |
3569 | spin_lock(&np->lock); | |
3570 | /* disable interrupts on the nic */ | |
3571 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
3572 | writel(0, base + NvRegIrqMask); | |
3573 | else | |
3574 | writel(np->irqmask, base + NvRegIrqMask); | |
3575 | pci_push(base); | |
3576 | ||
3577 | if (!np->in_shutdown) { | |
3578 | np->nic_poll_irq = np->irqmask; | |
3579 | np->recover_error = 1; | |
3580 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
1da177e4 | 3581 | } |
b67874ac | 3582 | spin_unlock(&np->lock); |
1da177e4 | 3583 | } |
b67874ac | 3584 | #endif |
1da177e4 LT |
3585 | dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name); |
3586 | ||
b67874ac | 3587 | return IRQ_HANDLED; |
1da177e4 LT |
3588 | } |
3589 | ||
f0734ab6 AA |
3590 | /** |
3591 | * All _optimized functions are used to help increase performance | |
3592 | * (reduce CPU and increase throughput). They use descripter version 3, | |
3593 | * compiler directives, and reduce memory accesses. | |
3594 | */ | |
86b22b0d AA |
3595 | static irqreturn_t nv_nic_irq_optimized(int foo, void *data) |
3596 | { | |
3597 | struct net_device *dev = (struct net_device *) data; | |
3598 | struct fe_priv *np = netdev_priv(dev); | |
3599 | u8 __iomem *base = get_hwbase(dev); | |
4145ade2 AA |
3600 | #ifndef CONFIG_FORCEDETH_NAPI |
3601 | int total_work = 0; | |
3602 | int loop_count = 0; | |
3603 | #endif | |
86b22b0d AA |
3604 | |
3605 | dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name); | |
3606 | ||
b67874ac AA |
3607 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
3608 | np->events = readl(base + NvRegIrqStatus); | |
1b2bb76f | 3609 | writel(np->events, base + NvRegIrqStatus); |
b67874ac AA |
3610 | } else { |
3611 | np->events = readl(base + NvRegMSIXIrqStatus); | |
1b2bb76f | 3612 | writel(np->events, base + NvRegMSIXIrqStatus); |
b67874ac AA |
3613 | } |
3614 | dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, np->events); | |
3615 | if (!(np->events & np->irqmask)) | |
3616 | return IRQ_NONE; | |
86b22b0d | 3617 | |
b67874ac | 3618 | nv_msi_workaround(np); |
4db0ee17 | 3619 | |
f27e6f39 | 3620 | #ifdef CONFIG_FORCEDETH_NAPI |
78c29bd9 ED |
3621 | if (napi_schedule_prep(&np->napi)) { |
3622 | /* | |
3623 | * Disable further irq's (msix not enabled with napi) | |
3624 | */ | |
3625 | writel(0, base + NvRegIrqMask); | |
3626 | __napi_schedule(&np->napi); | |
3627 | } | |
f0734ab6 | 3628 | #else |
4145ade2 AA |
3629 | do |
3630 | { | |
3631 | int work = 0; | |
3632 | if ((work = nv_rx_process_optimized(dev, RX_WORK_PER_LOOP))) { | |
3633 | if (unlikely(nv_alloc_rx_optimized(dev))) { | |
3634 | spin_lock(&np->lock); | |
3635 | if (!np->in_shutdown) | |
3636 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
3637 | spin_unlock(&np->lock); | |
3638 | } | |
86b22b0d | 3639 | } |
4145ade2 AA |
3640 | |
3641 | spin_lock(&np->lock); | |
3642 | work += nv_tx_done_optimized(dev, TX_WORK_PER_LOOP); | |
3643 | spin_unlock(&np->lock); | |
3644 | ||
3645 | if (!work) | |
3646 | break; | |
3647 | ||
3648 | total_work += work; | |
3649 | ||
3650 | loop_count++; | |
3651 | } | |
3652 | while (loop_count < max_interrupt_work); | |
3653 | ||
3654 | if (nv_change_interrupt_mode(dev, total_work)) { | |
3655 | /* setup new irq mask */ | |
3656 | writel(np->irqmask, base + NvRegIrqMask); | |
b67874ac | 3657 | } |
86b22b0d | 3658 | |
b67874ac AA |
3659 | if (unlikely(np->events & NVREG_IRQ_LINK)) { |
3660 | spin_lock(&np->lock); | |
3661 | nv_link_irq(dev); | |
3662 | spin_unlock(&np->lock); | |
3663 | } | |
3664 | if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) { | |
3665 | spin_lock(&np->lock); | |
3666 | nv_linkchange(dev); | |
3667 | spin_unlock(&np->lock); | |
3668 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
3669 | } | |
3670 | if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) { | |
3671 | spin_lock(&np->lock); | |
3672 | /* disable interrupts on the nic */ | |
3673 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
3674 | writel(0, base + NvRegIrqMask); | |
3675 | else | |
3676 | writel(np->irqmask, base + NvRegIrqMask); | |
3677 | pci_push(base); | |
3678 | ||
3679 | if (!np->in_shutdown) { | |
3680 | np->nic_poll_irq = np->irqmask; | |
3681 | np->recover_error = 1; | |
3682 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
86b22b0d | 3683 | } |
b67874ac | 3684 | spin_unlock(&np->lock); |
86b22b0d | 3685 | } |
b67874ac AA |
3686 | |
3687 | #endif | |
86b22b0d AA |
3688 | dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name); |
3689 | ||
b67874ac | 3690 | return IRQ_HANDLED; |
86b22b0d AA |
3691 | } |
3692 | ||
7d12e780 | 3693 | static irqreturn_t nv_nic_irq_tx(int foo, void *data) |
d33a73c8 AA |
3694 | { |
3695 | struct net_device *dev = (struct net_device *) data; | |
3696 | struct fe_priv *np = netdev_priv(dev); | |
3697 | u8 __iomem *base = get_hwbase(dev); | |
3698 | u32 events; | |
3699 | int i; | |
0a07bc64 | 3700 | unsigned long flags; |
d33a73c8 AA |
3701 | |
3702 | dprintk(KERN_DEBUG "%s: nv_nic_irq_tx\n", dev->name); | |
3703 | ||
3704 | for (i=0; ; i++) { | |
3705 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL; | |
3706 | writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus); | |
d33a73c8 AA |
3707 | dprintk(KERN_DEBUG "%s: tx irq: %08x\n", dev->name, events); |
3708 | if (!(events & np->irqmask)) | |
3709 | break; | |
3710 | ||
0a07bc64 | 3711 | spin_lock_irqsave(&np->lock, flags); |
4e16ed1b | 3712 | nv_tx_done_optimized(dev, TX_WORK_PER_LOOP); |
0a07bc64 | 3713 | spin_unlock_irqrestore(&np->lock, flags); |
f3b197ac | 3714 | |
f0734ab6 | 3715 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3716 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3717 | /* disable interrupts on the nic */ |
3718 | writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask); | |
3719 | pci_push(base); | |
3720 | ||
3721 | if (!np->in_shutdown) { | |
3722 | np->nic_poll_irq |= NVREG_IRQ_TX_ALL; | |
3723 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3724 | } | |
0a07bc64 | 3725 | spin_unlock_irqrestore(&np->lock, flags); |
1a2b7330 | 3726 | printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_tx.\n", dev->name, i); |
d33a73c8 AA |
3727 | break; |
3728 | } | |
3729 | ||
3730 | } | |
3731 | dprintk(KERN_DEBUG "%s: nv_nic_irq_tx completed\n", dev->name); | |
3732 | ||
3733 | return IRQ_RETVAL(i); | |
3734 | } | |
3735 | ||
e27cdba5 | 3736 | #ifdef CONFIG_FORCEDETH_NAPI |
bea3348e | 3737 | static int nv_napi_poll(struct napi_struct *napi, int budget) |
e27cdba5 | 3738 | { |
bea3348e SH |
3739 | struct fe_priv *np = container_of(napi, struct fe_priv, napi); |
3740 | struct net_device *dev = np->dev; | |
e27cdba5 | 3741 | u8 __iomem *base = get_hwbase(dev); |
d15e9c4d | 3742 | unsigned long flags; |
4145ade2 AA |
3743 | int retcode; |
3744 | int tx_work, rx_work; | |
e27cdba5 | 3745 | |
36b30ea9 | 3746 | if (!nv_optimized(np)) { |
f27e6f39 | 3747 | spin_lock_irqsave(&np->lock, flags); |
4145ade2 | 3748 | tx_work = nv_tx_done(dev, np->tx_ring_size); |
f27e6f39 AA |
3749 | spin_unlock_irqrestore(&np->lock, flags); |
3750 | ||
4145ade2 | 3751 | rx_work = nv_rx_process(dev, budget); |
e0379a14 AA |
3752 | retcode = nv_alloc_rx(dev); |
3753 | } else { | |
f27e6f39 | 3754 | spin_lock_irqsave(&np->lock, flags); |
4145ade2 | 3755 | tx_work = nv_tx_done_optimized(dev, np->tx_ring_size); |
f27e6f39 AA |
3756 | spin_unlock_irqrestore(&np->lock, flags); |
3757 | ||
4145ade2 | 3758 | rx_work = nv_rx_process_optimized(dev, budget); |
e0379a14 AA |
3759 | retcode = nv_alloc_rx_optimized(dev); |
3760 | } | |
e27cdba5 | 3761 | |
e0379a14 | 3762 | if (retcode) { |
d15e9c4d | 3763 | spin_lock_irqsave(&np->lock, flags); |
e27cdba5 SH |
3764 | if (!np->in_shutdown) |
3765 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
d15e9c4d | 3766 | spin_unlock_irqrestore(&np->lock, flags); |
e27cdba5 SH |
3767 | } |
3768 | ||
4145ade2 AA |
3769 | nv_change_interrupt_mode(dev, tx_work + rx_work); |
3770 | ||
f27e6f39 AA |
3771 | if (unlikely(np->events & NVREG_IRQ_LINK)) { |
3772 | spin_lock_irqsave(&np->lock, flags); | |
3773 | nv_link_irq(dev); | |
3774 | spin_unlock_irqrestore(&np->lock, flags); | |
3775 | } | |
3776 | if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) { | |
3777 | spin_lock_irqsave(&np->lock, flags); | |
3778 | nv_linkchange(dev); | |
3779 | spin_unlock_irqrestore(&np->lock, flags); | |
3780 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
3781 | } | |
3782 | if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) { | |
3783 | spin_lock_irqsave(&np->lock, flags); | |
3784 | if (!np->in_shutdown) { | |
3785 | np->nic_poll_irq = np->irqmask; | |
3786 | np->recover_error = 1; | |
3787 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3788 | } | |
3789 | spin_unlock_irqrestore(&np->lock, flags); | |
6c2da9c2 | 3790 | napi_complete(napi); |
4145ade2 | 3791 | return rx_work; |
f27e6f39 AA |
3792 | } |
3793 | ||
4145ade2 | 3794 | if (rx_work < budget) { |
f27e6f39 AA |
3795 | /* re-enable interrupts |
3796 | (msix not enabled in napi) */ | |
6c2da9c2 | 3797 | napi_complete(napi); |
bea3348e | 3798 | |
f27e6f39 | 3799 | writel(np->irqmask, base + NvRegIrqMask); |
e27cdba5 | 3800 | } |
4145ade2 | 3801 | return rx_work; |
e27cdba5 SH |
3802 | } |
3803 | #endif | |
3804 | ||
7d12e780 | 3805 | static irqreturn_t nv_nic_irq_rx(int foo, void *data) |
d33a73c8 AA |
3806 | { |
3807 | struct net_device *dev = (struct net_device *) data; | |
3808 | struct fe_priv *np = netdev_priv(dev); | |
3809 | u8 __iomem *base = get_hwbase(dev); | |
3810 | u32 events; | |
3811 | int i; | |
0a07bc64 | 3812 | unsigned long flags; |
d33a73c8 AA |
3813 | |
3814 | dprintk(KERN_DEBUG "%s: nv_nic_irq_rx\n", dev->name); | |
3815 | ||
3816 | for (i=0; ; i++) { | |
3817 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL; | |
3818 | writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus); | |
d33a73c8 AA |
3819 | dprintk(KERN_DEBUG "%s: rx irq: %08x\n", dev->name, events); |
3820 | if (!(events & np->irqmask)) | |
3821 | break; | |
f3b197ac | 3822 | |
bea3348e | 3823 | if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) { |
f0734ab6 AA |
3824 | if (unlikely(nv_alloc_rx_optimized(dev))) { |
3825 | spin_lock_irqsave(&np->lock, flags); | |
3826 | if (!np->in_shutdown) | |
3827 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
3828 | spin_unlock_irqrestore(&np->lock, flags); | |
3829 | } | |
d33a73c8 | 3830 | } |
f3b197ac | 3831 | |
f0734ab6 | 3832 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3833 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3834 | /* disable interrupts on the nic */ |
3835 | writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask); | |
3836 | pci_push(base); | |
3837 | ||
3838 | if (!np->in_shutdown) { | |
3839 | np->nic_poll_irq |= NVREG_IRQ_RX_ALL; | |
3840 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3841 | } | |
0a07bc64 | 3842 | spin_unlock_irqrestore(&np->lock, flags); |
1a2b7330 | 3843 | printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_rx.\n", dev->name, i); |
d33a73c8 AA |
3844 | break; |
3845 | } | |
d33a73c8 AA |
3846 | } |
3847 | dprintk(KERN_DEBUG "%s: nv_nic_irq_rx completed\n", dev->name); | |
3848 | ||
3849 | return IRQ_RETVAL(i); | |
3850 | } | |
3851 | ||
7d12e780 | 3852 | static irqreturn_t nv_nic_irq_other(int foo, void *data) |
d33a73c8 AA |
3853 | { |
3854 | struct net_device *dev = (struct net_device *) data; | |
3855 | struct fe_priv *np = netdev_priv(dev); | |
3856 | u8 __iomem *base = get_hwbase(dev); | |
3857 | u32 events; | |
3858 | int i; | |
0a07bc64 | 3859 | unsigned long flags; |
d33a73c8 AA |
3860 | |
3861 | dprintk(KERN_DEBUG "%s: nv_nic_irq_other\n", dev->name); | |
3862 | ||
3863 | for (i=0; ; i++) { | |
3864 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER; | |
3865 | writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus); | |
d33a73c8 AA |
3866 | dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); |
3867 | if (!(events & np->irqmask)) | |
3868 | break; | |
f3b197ac | 3869 | |
4e16ed1b AA |
3870 | /* check tx in case we reached max loop limit in tx isr */ |
3871 | spin_lock_irqsave(&np->lock, flags); | |
3872 | nv_tx_done_optimized(dev, TX_WORK_PER_LOOP); | |
3873 | spin_unlock_irqrestore(&np->lock, flags); | |
3874 | ||
d33a73c8 | 3875 | if (events & NVREG_IRQ_LINK) { |
0a07bc64 | 3876 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 | 3877 | nv_link_irq(dev); |
0a07bc64 | 3878 | spin_unlock_irqrestore(&np->lock, flags); |
d33a73c8 AA |
3879 | } |
3880 | if (np->need_linktimer && time_after(jiffies, np->link_timeout)) { | |
0a07bc64 | 3881 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 | 3882 | nv_linkchange(dev); |
0a07bc64 | 3883 | spin_unlock_irqrestore(&np->lock, flags); |
d33a73c8 AA |
3884 | np->link_timeout = jiffies + LINK_TIMEOUT; |
3885 | } | |
c5cf9101 AA |
3886 | if (events & NVREG_IRQ_RECOVER_ERROR) { |
3887 | spin_lock_irq(&np->lock); | |
3888 | /* disable interrupts on the nic */ | |
3889 | writel(NVREG_IRQ_OTHER, base + NvRegIrqMask); | |
3890 | pci_push(base); | |
3891 | ||
3892 | if (!np->in_shutdown) { | |
3893 | np->nic_poll_irq |= NVREG_IRQ_OTHER; | |
3894 | np->recover_error = 1; | |
3895 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3896 | } | |
3897 | spin_unlock_irq(&np->lock); | |
3898 | break; | |
3899 | } | |
f0734ab6 | 3900 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3901 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3902 | /* disable interrupts on the nic */ |
3903 | writel(NVREG_IRQ_OTHER, base + NvRegIrqMask); | |
3904 | pci_push(base); | |
3905 | ||
3906 | if (!np->in_shutdown) { | |
3907 | np->nic_poll_irq |= NVREG_IRQ_OTHER; | |
3908 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3909 | } | |
0a07bc64 | 3910 | spin_unlock_irqrestore(&np->lock, flags); |
1a2b7330 | 3911 | printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_other.\n", dev->name, i); |
d33a73c8 AA |
3912 | break; |
3913 | } | |
3914 | ||
3915 | } | |
3916 | dprintk(KERN_DEBUG "%s: nv_nic_irq_other completed\n", dev->name); | |
3917 | ||
3918 | return IRQ_RETVAL(i); | |
3919 | } | |
3920 | ||
7d12e780 | 3921 | static irqreturn_t nv_nic_irq_test(int foo, void *data) |
9589c77a AA |
3922 | { |
3923 | struct net_device *dev = (struct net_device *) data; | |
3924 | struct fe_priv *np = netdev_priv(dev); | |
3925 | u8 __iomem *base = get_hwbase(dev); | |
3926 | u32 events; | |
3927 | ||
3928 | dprintk(KERN_DEBUG "%s: nv_nic_irq_test\n", dev->name); | |
3929 | ||
3930 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { | |
3931 | events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; | |
3932 | writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus); | |
3933 | } else { | |
3934 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; | |
3935 | writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus); | |
3936 | } | |
3937 | pci_push(base); | |
3938 | dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events); | |
3939 | if (!(events & NVREG_IRQ_TIMER)) | |
3940 | return IRQ_RETVAL(0); | |
3941 | ||
4db0ee17 AA |
3942 | nv_msi_workaround(np); |
3943 | ||
9589c77a AA |
3944 | spin_lock(&np->lock); |
3945 | np->intr_test = 1; | |
3946 | spin_unlock(&np->lock); | |
3947 | ||
3948 | dprintk(KERN_DEBUG "%s: nv_nic_irq_test completed\n", dev->name); | |
3949 | ||
3950 | return IRQ_RETVAL(1); | |
3951 | } | |
3952 | ||
7a1854b7 AA |
3953 | static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask) |
3954 | { | |
3955 | u8 __iomem *base = get_hwbase(dev); | |
3956 | int i; | |
3957 | u32 msixmap = 0; | |
3958 | ||
3959 | /* Each interrupt bit can be mapped to a MSIX vector (4 bits). | |
3960 | * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents | |
3961 | * the remaining 8 interrupts. | |
3962 | */ | |
3963 | for (i = 0; i < 8; i++) { | |
3964 | if ((irqmask >> i) & 0x1) { | |
3965 | msixmap |= vector << (i << 2); | |
3966 | } | |
3967 | } | |
3968 | writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0); | |
3969 | ||
3970 | msixmap = 0; | |
3971 | for (i = 0; i < 8; i++) { | |
3972 | if ((irqmask >> (i + 8)) & 0x1) { | |
3973 | msixmap |= vector << (i << 2); | |
3974 | } | |
3975 | } | |
3976 | writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1); | |
3977 | } | |
3978 | ||
9589c77a | 3979 | static int nv_request_irq(struct net_device *dev, int intr_test) |
7a1854b7 AA |
3980 | { |
3981 | struct fe_priv *np = get_nvpriv(dev); | |
3982 | u8 __iomem *base = get_hwbase(dev); | |
3983 | int ret = 1; | |
3984 | int i; | |
86b22b0d AA |
3985 | irqreturn_t (*handler)(int foo, void *data); |
3986 | ||
3987 | if (intr_test) { | |
3988 | handler = nv_nic_irq_test; | |
3989 | } else { | |
36b30ea9 | 3990 | if (nv_optimized(np)) |
86b22b0d AA |
3991 | handler = nv_nic_irq_optimized; |
3992 | else | |
3993 | handler = nv_nic_irq; | |
3994 | } | |
7a1854b7 AA |
3995 | |
3996 | if (np->msi_flags & NV_MSI_X_CAPABLE) { | |
3997 | for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) { | |
3998 | np->msi_x_entry[i].entry = i; | |
3999 | } | |
4000 | if ((ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK))) == 0) { | |
4001 | np->msi_flags |= NV_MSI_X_ENABLED; | |
9589c77a | 4002 | if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) { |
7a1854b7 | 4003 | /* Request irq for rx handling */ |
ddb213f0 YL |
4004 | sprintf(np->name_rx, "%s-rx", dev->name); |
4005 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, | |
a0607fd3 | 4006 | nv_nic_irq_rx, IRQF_SHARED, np->name_rx, dev) != 0) { |
7a1854b7 AA |
4007 | printk(KERN_INFO "forcedeth: request_irq failed for rx %d\n", ret); |
4008 | pci_disable_msix(np->pci_dev); | |
4009 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
4010 | goto out_err; | |
4011 | } | |
4012 | /* Request irq for tx handling */ | |
ddb213f0 YL |
4013 | sprintf(np->name_tx, "%s-tx", dev->name); |
4014 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, | |
a0607fd3 | 4015 | nv_nic_irq_tx, IRQF_SHARED, np->name_tx, dev) != 0) { |
7a1854b7 AA |
4016 | printk(KERN_INFO "forcedeth: request_irq failed for tx %d\n", ret); |
4017 | pci_disable_msix(np->pci_dev); | |
4018 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
4019 | goto out_free_rx; | |
4020 | } | |
4021 | /* Request irq for link and timer handling */ | |
ddb213f0 YL |
4022 | sprintf(np->name_other, "%s-other", dev->name); |
4023 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, | |
a0607fd3 | 4024 | nv_nic_irq_other, IRQF_SHARED, np->name_other, dev) != 0) { |
7a1854b7 AA |
4025 | printk(KERN_INFO "forcedeth: request_irq failed for link %d\n", ret); |
4026 | pci_disable_msix(np->pci_dev); | |
4027 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
4028 | goto out_free_tx; | |
4029 | } | |
4030 | /* map interrupts to their respective vector */ | |
4031 | writel(0, base + NvRegMSIXMap0); | |
4032 | writel(0, base + NvRegMSIXMap1); | |
4033 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL); | |
4034 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL); | |
4035 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER); | |
4036 | } else { | |
4037 | /* Request irq for all interrupts */ | |
86b22b0d | 4038 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, handler, IRQF_SHARED, dev->name, dev) != 0) { |
7a1854b7 AA |
4039 | printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret); |
4040 | pci_disable_msix(np->pci_dev); | |
4041 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
4042 | goto out_err; | |
4043 | } | |
4044 | ||
4045 | /* map interrupts to vector 0 */ | |
4046 | writel(0, base + NvRegMSIXMap0); | |
4047 | writel(0, base + NvRegMSIXMap1); | |
4048 | } | |
4049 | } | |
4050 | } | |
4051 | if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) { | |
4052 | if ((ret = pci_enable_msi(np->pci_dev)) == 0) { | |
4053 | np->msi_flags |= NV_MSI_ENABLED; | |
a7475906 | 4054 | dev->irq = np->pci_dev->irq; |
86b22b0d | 4055 | if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) { |
7a1854b7 AA |
4056 | printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret); |
4057 | pci_disable_msi(np->pci_dev); | |
4058 | np->msi_flags &= ~NV_MSI_ENABLED; | |
a7475906 | 4059 | dev->irq = np->pci_dev->irq; |
7a1854b7 AA |
4060 | goto out_err; |
4061 | } | |
4062 | ||
4063 | /* map interrupts to vector 0 */ | |
4064 | writel(0, base + NvRegMSIMap0); | |
4065 | writel(0, base + NvRegMSIMap1); | |
4066 | /* enable msi vector 0 */ | |
4067 | writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask); | |
4068 | } | |
4069 | } | |
4070 | if (ret != 0) { | |
86b22b0d | 4071 | if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) |
7a1854b7 | 4072 | goto out_err; |
9589c77a | 4073 | |
7a1854b7 AA |
4074 | } |
4075 | ||
4076 | return 0; | |
4077 | out_free_tx: | |
4078 | free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev); | |
4079 | out_free_rx: | |
4080 | free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev); | |
4081 | out_err: | |
4082 | return 1; | |
4083 | } | |
4084 | ||
4085 | static void nv_free_irq(struct net_device *dev) | |
4086 | { | |
4087 | struct fe_priv *np = get_nvpriv(dev); | |
4088 | int i; | |
4089 | ||
4090 | if (np->msi_flags & NV_MSI_X_ENABLED) { | |
4091 | for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) { | |
4092 | free_irq(np->msi_x_entry[i].vector, dev); | |
4093 | } | |
4094 | pci_disable_msix(np->pci_dev); | |
4095 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
4096 | } else { | |
4097 | free_irq(np->pci_dev->irq, dev); | |
4098 | if (np->msi_flags & NV_MSI_ENABLED) { | |
4099 | pci_disable_msi(np->pci_dev); | |
4100 | np->msi_flags &= ~NV_MSI_ENABLED; | |
4101 | } | |
4102 | } | |
4103 | } | |
4104 | ||
1da177e4 LT |
4105 | static void nv_do_nic_poll(unsigned long data) |
4106 | { | |
4107 | struct net_device *dev = (struct net_device *) data; | |
ac9c1897 | 4108 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 4109 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 | 4110 | u32 mask = 0; |
1da177e4 | 4111 | |
1da177e4 | 4112 | /* |
d33a73c8 | 4113 | * First disable irq(s) and then |
1da177e4 LT |
4114 | * reenable interrupts on the nic, we have to do this before calling |
4115 | * nv_nic_irq because that may decide to do otherwise | |
4116 | */ | |
d33a73c8 | 4117 | |
84b3932b AA |
4118 | if (!using_multi_irqs(dev)) { |
4119 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
8688cfce | 4120 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
84b3932b | 4121 | else |
a7475906 | 4122 | disable_irq_lockdep(np->pci_dev->irq); |
d33a73c8 AA |
4123 | mask = np->irqmask; |
4124 | } else { | |
4125 | if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { | |
8688cfce | 4126 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
d33a73c8 AA |
4127 | mask |= NVREG_IRQ_RX_ALL; |
4128 | } | |
4129 | if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { | |
8688cfce | 4130 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
d33a73c8 AA |
4131 | mask |= NVREG_IRQ_TX_ALL; |
4132 | } | |
4133 | if (np->nic_poll_irq & NVREG_IRQ_OTHER) { | |
8688cfce | 4134 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
d33a73c8 AA |
4135 | mask |= NVREG_IRQ_OTHER; |
4136 | } | |
4137 | } | |
a7475906 MS |
4138 | /* disable_irq() contains synchronize_irq, thus no irq handler can run now */ |
4139 | ||
c5cf9101 AA |
4140 | if (np->recover_error) { |
4141 | np->recover_error = 0; | |
daa91a9d | 4142 | printk(KERN_INFO "%s: MAC in recoverable error state\n", dev->name); |
c5cf9101 AA |
4143 | if (netif_running(dev)) { |
4144 | netif_tx_lock_bh(dev); | |
e308a5d8 | 4145 | netif_addr_lock(dev); |
c5cf9101 AA |
4146 | spin_lock(&np->lock); |
4147 | /* stop engines */ | |
36b30ea9 | 4148 | nv_stop_rxtx(dev); |
daa91a9d AA |
4149 | if (np->driver_data & DEV_HAS_POWER_CNTRL) |
4150 | nv_mac_reset(dev); | |
c5cf9101 AA |
4151 | nv_txrx_reset(dev); |
4152 | /* drain rx queue */ | |
36b30ea9 | 4153 | nv_drain_rxtx(dev); |
c5cf9101 AA |
4154 | /* reinit driver view of the rx queue */ |
4155 | set_bufsize(dev); | |
4156 | if (nv_init_ring(dev)) { | |
4157 | if (!np->in_shutdown) | |
4158 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
4159 | } | |
4160 | /* reinit nic view of the rx queue */ | |
4161 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
4162 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
4163 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), | |
4164 | base + NvRegRingSizes); | |
4165 | pci_push(base); | |
4166 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
4167 | pci_push(base); | |
daa91a9d AA |
4168 | /* clear interrupts */ |
4169 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
4170 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
4171 | else | |
4172 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); | |
c5cf9101 AA |
4173 | |
4174 | /* restart rx engine */ | |
36b30ea9 | 4175 | nv_start_rxtx(dev); |
c5cf9101 | 4176 | spin_unlock(&np->lock); |
e308a5d8 | 4177 | netif_addr_unlock(dev); |
c5cf9101 AA |
4178 | netif_tx_unlock_bh(dev); |
4179 | } | |
4180 | } | |
4181 | ||
d33a73c8 | 4182 | writel(mask, base + NvRegIrqMask); |
1da177e4 | 4183 | pci_push(base); |
d33a73c8 | 4184 | |
84b3932b | 4185 | if (!using_multi_irqs(dev)) { |
79d30a58 | 4186 | np->nic_poll_irq = 0; |
36b30ea9 | 4187 | if (nv_optimized(np)) |
fcc5f266 AA |
4188 | nv_nic_irq_optimized(0, dev); |
4189 | else | |
4190 | nv_nic_irq(0, dev); | |
84b3932b | 4191 | if (np->msi_flags & NV_MSI_X_ENABLED) |
8688cfce | 4192 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
84b3932b | 4193 | else |
a7475906 | 4194 | enable_irq_lockdep(np->pci_dev->irq); |
d33a73c8 AA |
4195 | } else { |
4196 | if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { | |
79d30a58 | 4197 | np->nic_poll_irq &= ~NVREG_IRQ_RX_ALL; |
7d12e780 | 4198 | nv_nic_irq_rx(0, dev); |
8688cfce | 4199 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
d33a73c8 AA |
4200 | } |
4201 | if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { | |
79d30a58 | 4202 | np->nic_poll_irq &= ~NVREG_IRQ_TX_ALL; |
7d12e780 | 4203 | nv_nic_irq_tx(0, dev); |
8688cfce | 4204 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
d33a73c8 AA |
4205 | } |
4206 | if (np->nic_poll_irq & NVREG_IRQ_OTHER) { | |
79d30a58 | 4207 | np->nic_poll_irq &= ~NVREG_IRQ_OTHER; |
7d12e780 | 4208 | nv_nic_irq_other(0, dev); |
8688cfce | 4209 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
d33a73c8 AA |
4210 | } |
4211 | } | |
79d30a58 | 4212 | |
1da177e4 LT |
4213 | } |
4214 | ||
2918c35d MS |
4215 | #ifdef CONFIG_NET_POLL_CONTROLLER |
4216 | static void nv_poll_controller(struct net_device *dev) | |
4217 | { | |
4218 | nv_do_nic_poll((unsigned long) dev); | |
4219 | } | |
4220 | #endif | |
4221 | ||
52da3578 AA |
4222 | static void nv_do_stats_poll(unsigned long data) |
4223 | { | |
4224 | struct net_device *dev = (struct net_device *) data; | |
4225 | struct fe_priv *np = netdev_priv(dev); | |
52da3578 | 4226 | |
57fff698 | 4227 | nv_get_hw_stats(dev); |
52da3578 AA |
4228 | |
4229 | if (!np->in_shutdown) | |
bfebbb88 DD |
4230 | mod_timer(&np->stats_poll, |
4231 | round_jiffies(jiffies + STATS_INTERVAL)); | |
52da3578 AA |
4232 | } |
4233 | ||
1da177e4 LT |
4234 | static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
4235 | { | |
ac9c1897 | 4236 | struct fe_priv *np = netdev_priv(dev); |
3f88ce49 | 4237 | strcpy(info->driver, DRV_NAME); |
1da177e4 LT |
4238 | strcpy(info->version, FORCEDETH_VERSION); |
4239 | strcpy(info->bus_info, pci_name(np->pci_dev)); | |
4240 | } | |
4241 | ||
4242 | static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
4243 | { | |
ac9c1897 | 4244 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
4245 | wolinfo->supported = WAKE_MAGIC; |
4246 | ||
4247 | spin_lock_irq(&np->lock); | |
4248 | if (np->wolenabled) | |
4249 | wolinfo->wolopts = WAKE_MAGIC; | |
4250 | spin_unlock_irq(&np->lock); | |
4251 | } | |
4252 | ||
4253 | static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
4254 | { | |
ac9c1897 | 4255 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 4256 | u8 __iomem *base = get_hwbase(dev); |
c42d9df9 | 4257 | u32 flags = 0; |
1da177e4 | 4258 | |
1da177e4 | 4259 | if (wolinfo->wolopts == 0) { |
1da177e4 | 4260 | np->wolenabled = 0; |
c42d9df9 | 4261 | } else if (wolinfo->wolopts & WAKE_MAGIC) { |
1da177e4 | 4262 | np->wolenabled = 1; |
c42d9df9 AA |
4263 | flags = NVREG_WAKEUPFLAGS_ENABLE; |
4264 | } | |
4265 | if (netif_running(dev)) { | |
4266 | spin_lock_irq(&np->lock); | |
4267 | writel(flags, base + NvRegWakeUpFlags); | |
4268 | spin_unlock_irq(&np->lock); | |
1da177e4 | 4269 | } |
1da177e4 LT |
4270 | return 0; |
4271 | } | |
4272 | ||
4273 | static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
4274 | { | |
4275 | struct fe_priv *np = netdev_priv(dev); | |
4276 | int adv; | |
4277 | ||
4278 | spin_lock_irq(&np->lock); | |
4279 | ecmd->port = PORT_MII; | |
4280 | if (!netif_running(dev)) { | |
4281 | /* We do not track link speed / duplex setting if the | |
4282 | * interface is disabled. Force a link check */ | |
f9430a01 AA |
4283 | if (nv_update_linkspeed(dev)) { |
4284 | if (!netif_carrier_ok(dev)) | |
4285 | netif_carrier_on(dev); | |
4286 | } else { | |
4287 | if (netif_carrier_ok(dev)) | |
4288 | netif_carrier_off(dev); | |
4289 | } | |
1da177e4 | 4290 | } |
f9430a01 AA |
4291 | |
4292 | if (netif_carrier_ok(dev)) { | |
4293 | switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) { | |
1da177e4 LT |
4294 | case NVREG_LINKSPEED_10: |
4295 | ecmd->speed = SPEED_10; | |
4296 | break; | |
4297 | case NVREG_LINKSPEED_100: | |
4298 | ecmd->speed = SPEED_100; | |
4299 | break; | |
4300 | case NVREG_LINKSPEED_1000: | |
4301 | ecmd->speed = SPEED_1000; | |
4302 | break; | |
f9430a01 AA |
4303 | } |
4304 | ecmd->duplex = DUPLEX_HALF; | |
4305 | if (np->duplex) | |
4306 | ecmd->duplex = DUPLEX_FULL; | |
4307 | } else { | |
4308 | ecmd->speed = -1; | |
4309 | ecmd->duplex = -1; | |
1da177e4 | 4310 | } |
1da177e4 LT |
4311 | |
4312 | ecmd->autoneg = np->autoneg; | |
4313 | ||
4314 | ecmd->advertising = ADVERTISED_MII; | |
4315 | if (np->autoneg) { | |
4316 | ecmd->advertising |= ADVERTISED_Autoneg; | |
4317 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
f9430a01 AA |
4318 | if (adv & ADVERTISE_10HALF) |
4319 | ecmd->advertising |= ADVERTISED_10baseT_Half; | |
4320 | if (adv & ADVERTISE_10FULL) | |
4321 | ecmd->advertising |= ADVERTISED_10baseT_Full; | |
4322 | if (adv & ADVERTISE_100HALF) | |
4323 | ecmd->advertising |= ADVERTISED_100baseT_Half; | |
4324 | if (adv & ADVERTISE_100FULL) | |
4325 | ecmd->advertising |= ADVERTISED_100baseT_Full; | |
4326 | if (np->gigabit == PHY_GIGABIT) { | |
4327 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); | |
4328 | if (adv & ADVERTISE_1000FULL) | |
4329 | ecmd->advertising |= ADVERTISED_1000baseT_Full; | |
4330 | } | |
1da177e4 | 4331 | } |
1da177e4 LT |
4332 | ecmd->supported = (SUPPORTED_Autoneg | |
4333 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | | |
4334 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | | |
4335 | SUPPORTED_MII); | |
4336 | if (np->gigabit == PHY_GIGABIT) | |
4337 | ecmd->supported |= SUPPORTED_1000baseT_Full; | |
4338 | ||
4339 | ecmd->phy_address = np->phyaddr; | |
4340 | ecmd->transceiver = XCVR_EXTERNAL; | |
4341 | ||
4342 | /* ignore maxtxpkt, maxrxpkt for now */ | |
4343 | spin_unlock_irq(&np->lock); | |
4344 | return 0; | |
4345 | } | |
4346 | ||
4347 | static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
4348 | { | |
4349 | struct fe_priv *np = netdev_priv(dev); | |
4350 | ||
4351 | if (ecmd->port != PORT_MII) | |
4352 | return -EINVAL; | |
4353 | if (ecmd->transceiver != XCVR_EXTERNAL) | |
4354 | return -EINVAL; | |
4355 | if (ecmd->phy_address != np->phyaddr) { | |
4356 | /* TODO: support switching between multiple phys. Should be | |
4357 | * trivial, but not enabled due to lack of test hardware. */ | |
4358 | return -EINVAL; | |
4359 | } | |
4360 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
4361 | u32 mask; | |
4362 | ||
4363 | mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | | |
4364 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; | |
4365 | if (np->gigabit == PHY_GIGABIT) | |
4366 | mask |= ADVERTISED_1000baseT_Full; | |
4367 | ||
4368 | if ((ecmd->advertising & mask) == 0) | |
4369 | return -EINVAL; | |
4370 | ||
4371 | } else if (ecmd->autoneg == AUTONEG_DISABLE) { | |
4372 | /* Note: autonegotiation disable, speed 1000 intentionally | |
4373 | * forbidden - noone should need that. */ | |
4374 | ||
4375 | if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100) | |
4376 | return -EINVAL; | |
4377 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
4378 | return -EINVAL; | |
4379 | } else { | |
4380 | return -EINVAL; | |
4381 | } | |
4382 | ||
f9430a01 AA |
4383 | netif_carrier_off(dev); |
4384 | if (netif_running(dev)) { | |
97bff095 TD |
4385 | unsigned long flags; |
4386 | ||
f9430a01 | 4387 | nv_disable_irq(dev); |
58dfd9c1 | 4388 | netif_tx_lock_bh(dev); |
e308a5d8 | 4389 | netif_addr_lock(dev); |
97bff095 TD |
4390 | /* with plain spinlock lockdep complains */ |
4391 | spin_lock_irqsave(&np->lock, flags); | |
f9430a01 | 4392 | /* stop engines */ |
97bff095 TD |
4393 | /* FIXME: |
4394 | * this can take some time, and interrupts are disabled | |
4395 | * due to spin_lock_irqsave, but let's hope no daemon | |
4396 | * is going to change the settings very often... | |
4397 | * Worst case: | |
4398 | * NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX | |
4399 | * + some minor delays, which is up to a second approximately | |
4400 | */ | |
36b30ea9 | 4401 | nv_stop_rxtx(dev); |
97bff095 | 4402 | spin_unlock_irqrestore(&np->lock, flags); |
e308a5d8 | 4403 | netif_addr_unlock(dev); |
58dfd9c1 | 4404 | netif_tx_unlock_bh(dev); |
f9430a01 AA |
4405 | } |
4406 | ||
1da177e4 LT |
4407 | if (ecmd->autoneg == AUTONEG_ENABLE) { |
4408 | int adv, bmcr; | |
4409 | ||
4410 | np->autoneg = 1; | |
4411 | ||
4412 | /* advertise only what has been requested */ | |
4413 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
eb91f61b | 4414 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
1da177e4 LT |
4415 | if (ecmd->advertising & ADVERTISED_10baseT_Half) |
4416 | adv |= ADVERTISE_10HALF; | |
4417 | if (ecmd->advertising & ADVERTISED_10baseT_Full) | |
b6d0773f | 4418 | adv |= ADVERTISE_10FULL; |
1da177e4 LT |
4419 | if (ecmd->advertising & ADVERTISED_100baseT_Half) |
4420 | adv |= ADVERTISE_100HALF; | |
4421 | if (ecmd->advertising & ADVERTISED_100baseT_Full) | |
b6d0773f AA |
4422 | adv |= ADVERTISE_100FULL; |
4423 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */ | |
4424 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; | |
4425 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
4426 | adv |= ADVERTISE_PAUSE_ASYM; | |
1da177e4 LT |
4427 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
4428 | ||
4429 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b | 4430 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
1da177e4 LT |
4431 | adv &= ~ADVERTISE_1000FULL; |
4432 | if (ecmd->advertising & ADVERTISED_1000baseT_Full) | |
4433 | adv |= ADVERTISE_1000FULL; | |
eb91f61b | 4434 | mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
1da177e4 LT |
4435 | } |
4436 | ||
f9430a01 AA |
4437 | if (netif_running(dev)) |
4438 | printk(KERN_INFO "%s: link down.\n", dev->name); | |
1da177e4 | 4439 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
edf7e5ec AA |
4440 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { |
4441 | bmcr |= BMCR_ANENABLE; | |
4442 | /* reset the phy in order for settings to stick, | |
4443 | * and cause autoneg to start */ | |
4444 | if (phy_reset(dev, bmcr)) { | |
4445 | printk(KERN_INFO "%s: phy reset failed\n", dev->name); | |
4446 | return -EINVAL; | |
4447 | } | |
4448 | } else { | |
4449 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4450 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4451 | } | |
1da177e4 LT |
4452 | } else { |
4453 | int adv, bmcr; | |
4454 | ||
4455 | np->autoneg = 0; | |
4456 | ||
4457 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
eb91f61b | 4458 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
1da177e4 LT |
4459 | if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF) |
4460 | adv |= ADVERTISE_10HALF; | |
4461 | if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL) | |
b6d0773f | 4462 | adv |= ADVERTISE_10FULL; |
1da177e4 LT |
4463 | if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF) |
4464 | adv |= ADVERTISE_100HALF; | |
4465 | if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL) | |
b6d0773f AA |
4466 | adv |= ADVERTISE_100FULL; |
4467 | np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); | |
4468 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */ | |
4469 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; | |
4470 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
4471 | } | |
4472 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) { | |
4473 | adv |= ADVERTISE_PAUSE_ASYM; | |
4474 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
4475 | } | |
1da177e4 LT |
4476 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
4477 | np->fixed_mode = adv; | |
4478 | ||
4479 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b | 4480 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
1da177e4 | 4481 | adv &= ~ADVERTISE_1000FULL; |
eb91f61b | 4482 | mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
1da177e4 LT |
4483 | } |
4484 | ||
4485 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
f9430a01 AA |
4486 | bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX); |
4487 | if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL)) | |
1da177e4 | 4488 | bmcr |= BMCR_FULLDPLX; |
f9430a01 | 4489 | if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL)) |
1da177e4 | 4490 | bmcr |= BMCR_SPEED100; |
f9430a01 | 4491 | if (np->phy_oui == PHY_OUI_MARVELL) { |
edf7e5ec AA |
4492 | /* reset the phy in order for forced mode settings to stick */ |
4493 | if (phy_reset(dev, bmcr)) { | |
f9430a01 AA |
4494 | printk(KERN_INFO "%s: phy reset failed\n", dev->name); |
4495 | return -EINVAL; | |
4496 | } | |
edf7e5ec AA |
4497 | } else { |
4498 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4499 | if (netif_running(dev)) { | |
4500 | /* Wait a bit and then reconfigure the nic. */ | |
4501 | udelay(10); | |
4502 | nv_linkchange(dev); | |
4503 | } | |
1da177e4 LT |
4504 | } |
4505 | } | |
f9430a01 AA |
4506 | |
4507 | if (netif_running(dev)) { | |
36b30ea9 | 4508 | nv_start_rxtx(dev); |
f9430a01 AA |
4509 | nv_enable_irq(dev); |
4510 | } | |
1da177e4 LT |
4511 | |
4512 | return 0; | |
4513 | } | |
4514 | ||
dc8216c1 | 4515 | #define FORCEDETH_REGS_VER 1 |
dc8216c1 MS |
4516 | |
4517 | static int nv_get_regs_len(struct net_device *dev) | |
4518 | { | |
86a0f043 AA |
4519 | struct fe_priv *np = netdev_priv(dev); |
4520 | return np->register_size; | |
dc8216c1 MS |
4521 | } |
4522 | ||
4523 | static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) | |
4524 | { | |
ac9c1897 | 4525 | struct fe_priv *np = netdev_priv(dev); |
dc8216c1 MS |
4526 | u8 __iomem *base = get_hwbase(dev); |
4527 | u32 *rbuf = buf; | |
4528 | int i; | |
4529 | ||
4530 | regs->version = FORCEDETH_REGS_VER; | |
4531 | spin_lock_irq(&np->lock); | |
86a0f043 | 4532 | for (i = 0;i <= np->register_size/sizeof(u32); i++) |
dc8216c1 MS |
4533 | rbuf[i] = readl(base + i*sizeof(u32)); |
4534 | spin_unlock_irq(&np->lock); | |
4535 | } | |
4536 | ||
4537 | static int nv_nway_reset(struct net_device *dev) | |
4538 | { | |
ac9c1897 | 4539 | struct fe_priv *np = netdev_priv(dev); |
dc8216c1 MS |
4540 | int ret; |
4541 | ||
dc8216c1 MS |
4542 | if (np->autoneg) { |
4543 | int bmcr; | |
4544 | ||
f9430a01 AA |
4545 | netif_carrier_off(dev); |
4546 | if (netif_running(dev)) { | |
4547 | nv_disable_irq(dev); | |
58dfd9c1 | 4548 | netif_tx_lock_bh(dev); |
e308a5d8 | 4549 | netif_addr_lock(dev); |
f9430a01 AA |
4550 | spin_lock(&np->lock); |
4551 | /* stop engines */ | |
36b30ea9 | 4552 | nv_stop_rxtx(dev); |
f9430a01 | 4553 | spin_unlock(&np->lock); |
e308a5d8 | 4554 | netif_addr_unlock(dev); |
58dfd9c1 | 4555 | netif_tx_unlock_bh(dev); |
f9430a01 AA |
4556 | printk(KERN_INFO "%s: link down.\n", dev->name); |
4557 | } | |
4558 | ||
dc8216c1 | 4559 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
edf7e5ec AA |
4560 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { |
4561 | bmcr |= BMCR_ANENABLE; | |
4562 | /* reset the phy in order for settings to stick*/ | |
4563 | if (phy_reset(dev, bmcr)) { | |
4564 | printk(KERN_INFO "%s: phy reset failed\n", dev->name); | |
4565 | return -EINVAL; | |
4566 | } | |
4567 | } else { | |
4568 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4569 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4570 | } | |
dc8216c1 | 4571 | |
f9430a01 | 4572 | if (netif_running(dev)) { |
36b30ea9 | 4573 | nv_start_rxtx(dev); |
f9430a01 AA |
4574 | nv_enable_irq(dev); |
4575 | } | |
dc8216c1 MS |
4576 | ret = 0; |
4577 | } else { | |
4578 | ret = -EINVAL; | |
4579 | } | |
dc8216c1 MS |
4580 | |
4581 | return ret; | |
4582 | } | |
4583 | ||
0674d594 ZA |
4584 | static int nv_set_tso(struct net_device *dev, u32 value) |
4585 | { | |
4586 | struct fe_priv *np = netdev_priv(dev); | |
4587 | ||
4588 | if ((np->driver_data & DEV_HAS_CHECKSUM)) | |
4589 | return ethtool_op_set_tso(dev, value); | |
4590 | else | |
6a78814f | 4591 | return -EOPNOTSUPP; |
0674d594 | 4592 | } |
0674d594 | 4593 | |
eafa59f6 AA |
4594 | static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) |
4595 | { | |
4596 | struct fe_priv *np = netdev_priv(dev); | |
4597 | ||
4598 | ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; | |
4599 | ring->rx_mini_max_pending = 0; | |
4600 | ring->rx_jumbo_max_pending = 0; | |
4601 | ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; | |
4602 | ||
4603 | ring->rx_pending = np->rx_ring_size; | |
4604 | ring->rx_mini_pending = 0; | |
4605 | ring->rx_jumbo_pending = 0; | |
4606 | ring->tx_pending = np->tx_ring_size; | |
4607 | } | |
4608 | ||
4609 | static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) | |
4610 | { | |
4611 | struct fe_priv *np = netdev_priv(dev); | |
4612 | u8 __iomem *base = get_hwbase(dev); | |
761fcd9e | 4613 | u8 *rxtx_ring, *rx_skbuff, *tx_skbuff; |
eafa59f6 AA |
4614 | dma_addr_t ring_addr; |
4615 | ||
4616 | if (ring->rx_pending < RX_RING_MIN || | |
4617 | ring->tx_pending < TX_RING_MIN || | |
4618 | ring->rx_mini_pending != 0 || | |
4619 | ring->rx_jumbo_pending != 0 || | |
4620 | (np->desc_ver == DESC_VER_1 && | |
4621 | (ring->rx_pending > RING_MAX_DESC_VER_1 || | |
4622 | ring->tx_pending > RING_MAX_DESC_VER_1)) || | |
4623 | (np->desc_ver != DESC_VER_1 && | |
4624 | (ring->rx_pending > RING_MAX_DESC_VER_2_3 || | |
4625 | ring->tx_pending > RING_MAX_DESC_VER_2_3))) { | |
4626 | return -EINVAL; | |
4627 | } | |
4628 | ||
4629 | /* allocate new rings */ | |
36b30ea9 | 4630 | if (!nv_optimized(np)) { |
eafa59f6 AA |
4631 | rxtx_ring = pci_alloc_consistent(np->pci_dev, |
4632 | sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), | |
4633 | &ring_addr); | |
4634 | } else { | |
4635 | rxtx_ring = pci_alloc_consistent(np->pci_dev, | |
4636 | sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), | |
4637 | &ring_addr); | |
4638 | } | |
761fcd9e AA |
4639 | rx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->rx_pending, GFP_KERNEL); |
4640 | tx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->tx_pending, GFP_KERNEL); | |
4641 | if (!rxtx_ring || !rx_skbuff || !tx_skbuff) { | |
eafa59f6 | 4642 | /* fall back to old rings */ |
36b30ea9 | 4643 | if (!nv_optimized(np)) { |
f82a9352 | 4644 | if (rxtx_ring) |
eafa59f6 AA |
4645 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), |
4646 | rxtx_ring, ring_addr); | |
4647 | } else { | |
4648 | if (rxtx_ring) | |
4649 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), | |
4650 | rxtx_ring, ring_addr); | |
4651 | } | |
4652 | if (rx_skbuff) | |
4653 | kfree(rx_skbuff); | |
eafa59f6 AA |
4654 | if (tx_skbuff) |
4655 | kfree(tx_skbuff); | |
eafa59f6 AA |
4656 | goto exit; |
4657 | } | |
4658 | ||
4659 | if (netif_running(dev)) { | |
4660 | nv_disable_irq(dev); | |
08d93575 | 4661 | nv_napi_disable(dev); |
58dfd9c1 | 4662 | netif_tx_lock_bh(dev); |
e308a5d8 | 4663 | netif_addr_lock(dev); |
eafa59f6 AA |
4664 | spin_lock(&np->lock); |
4665 | /* stop engines */ | |
36b30ea9 | 4666 | nv_stop_rxtx(dev); |
eafa59f6 AA |
4667 | nv_txrx_reset(dev); |
4668 | /* drain queues */ | |
36b30ea9 | 4669 | nv_drain_rxtx(dev); |
eafa59f6 AA |
4670 | /* delete queues */ |
4671 | free_rings(dev); | |
4672 | } | |
4673 | ||
4674 | /* set new values */ | |
4675 | np->rx_ring_size = ring->rx_pending; | |
4676 | np->tx_ring_size = ring->tx_pending; | |
36b30ea9 JG |
4677 | |
4678 | if (!nv_optimized(np)) { | |
eafa59f6 AA |
4679 | np->rx_ring.orig = (struct ring_desc*)rxtx_ring; |
4680 | np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; | |
4681 | } else { | |
4682 | np->rx_ring.ex = (struct ring_desc_ex*)rxtx_ring; | |
4683 | np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; | |
4684 | } | |
761fcd9e AA |
4685 | np->rx_skb = (struct nv_skb_map*)rx_skbuff; |
4686 | np->tx_skb = (struct nv_skb_map*)tx_skbuff; | |
eafa59f6 AA |
4687 | np->ring_addr = ring_addr; |
4688 | ||
761fcd9e AA |
4689 | memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size); |
4690 | memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size); | |
eafa59f6 AA |
4691 | |
4692 | if (netif_running(dev)) { | |
4693 | /* reinit driver view of the queues */ | |
4694 | set_bufsize(dev); | |
4695 | if (nv_init_ring(dev)) { | |
4696 | if (!np->in_shutdown) | |
4697 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
4698 | } | |
4699 | ||
4700 | /* reinit nic view of the queues */ | |
4701 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
4702 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
4703 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), | |
4704 | base + NvRegRingSizes); | |
4705 | pci_push(base); | |
4706 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
4707 | pci_push(base); | |
4708 | ||
4709 | /* restart engines */ | |
36b30ea9 | 4710 | nv_start_rxtx(dev); |
eafa59f6 | 4711 | spin_unlock(&np->lock); |
e308a5d8 | 4712 | netif_addr_unlock(dev); |
58dfd9c1 | 4713 | netif_tx_unlock_bh(dev); |
08d93575 | 4714 | nv_napi_enable(dev); |
eafa59f6 AA |
4715 | nv_enable_irq(dev); |
4716 | } | |
4717 | return 0; | |
4718 | exit: | |
4719 | return -ENOMEM; | |
4720 | } | |
4721 | ||
b6d0773f AA |
4722 | static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) |
4723 | { | |
4724 | struct fe_priv *np = netdev_priv(dev); | |
4725 | ||
4726 | pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0; | |
4727 | pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0; | |
4728 | pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0; | |
4729 | } | |
4730 | ||
4731 | static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) | |
4732 | { | |
4733 | struct fe_priv *np = netdev_priv(dev); | |
4734 | int adv, bmcr; | |
4735 | ||
4736 | if ((!np->autoneg && np->duplex == 0) || | |
4737 | (np->autoneg && !pause->autoneg && np->duplex == 0)) { | |
4738 | printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n", | |
4739 | dev->name); | |
4740 | return -EINVAL; | |
4741 | } | |
4742 | if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) { | |
4743 | printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name); | |
4744 | return -EINVAL; | |
4745 | } | |
4746 | ||
4747 | netif_carrier_off(dev); | |
4748 | if (netif_running(dev)) { | |
4749 | nv_disable_irq(dev); | |
58dfd9c1 | 4750 | netif_tx_lock_bh(dev); |
e308a5d8 | 4751 | netif_addr_lock(dev); |
b6d0773f AA |
4752 | spin_lock(&np->lock); |
4753 | /* stop engines */ | |
36b30ea9 | 4754 | nv_stop_rxtx(dev); |
b6d0773f | 4755 | spin_unlock(&np->lock); |
e308a5d8 | 4756 | netif_addr_unlock(dev); |
58dfd9c1 | 4757 | netif_tx_unlock_bh(dev); |
b6d0773f AA |
4758 | } |
4759 | ||
4760 | np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ); | |
4761 | if (pause->rx_pause) | |
4762 | np->pause_flags |= NV_PAUSEFRAME_RX_REQ; | |
4763 | if (pause->tx_pause) | |
4764 | np->pause_flags |= NV_PAUSEFRAME_TX_REQ; | |
4765 | ||
4766 | if (np->autoneg && pause->autoneg) { | |
4767 | np->pause_flags |= NV_PAUSEFRAME_AUTONEG; | |
4768 | ||
4769 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
4770 | adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
4771 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */ | |
4772 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; | |
4773 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
4774 | adv |= ADVERTISE_PAUSE_ASYM; | |
4775 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); | |
4776 | ||
4777 | if (netif_running(dev)) | |
4778 | printk(KERN_INFO "%s: link down.\n", dev->name); | |
4779 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
4780 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4781 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4782 | } else { | |
4783 | np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); | |
4784 | if (pause->rx_pause) | |
4785 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
4786 | if (pause->tx_pause) | |
4787 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
4788 | ||
4789 | if (!netif_running(dev)) | |
4790 | nv_update_linkspeed(dev); | |
4791 | else | |
4792 | nv_update_pause(dev, np->pause_flags); | |
4793 | } | |
4794 | ||
4795 | if (netif_running(dev)) { | |
36b30ea9 | 4796 | nv_start_rxtx(dev); |
b6d0773f AA |
4797 | nv_enable_irq(dev); |
4798 | } | |
4799 | return 0; | |
4800 | } | |
4801 | ||
5ed2616f AA |
4802 | static u32 nv_get_rx_csum(struct net_device *dev) |
4803 | { | |
4804 | struct fe_priv *np = netdev_priv(dev); | |
f2ad2d9b | 4805 | return (np->rx_csum) != 0; |
5ed2616f AA |
4806 | } |
4807 | ||
4808 | static int nv_set_rx_csum(struct net_device *dev, u32 data) | |
4809 | { | |
4810 | struct fe_priv *np = netdev_priv(dev); | |
4811 | u8 __iomem *base = get_hwbase(dev); | |
4812 | int retcode = 0; | |
4813 | ||
4814 | if (np->driver_data & DEV_HAS_CHECKSUM) { | |
5ed2616f | 4815 | if (data) { |
f2ad2d9b | 4816 | np->rx_csum = 1; |
5ed2616f | 4817 | np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; |
5ed2616f | 4818 | } else { |
f2ad2d9b AA |
4819 | np->rx_csum = 0; |
4820 | /* vlan is dependent on rx checksum offload */ | |
4821 | if (!(np->vlanctl_bits & NVREG_VLANCONTROL_ENABLE)) | |
4822 | np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK; | |
5ed2616f | 4823 | } |
5ed2616f AA |
4824 | if (netif_running(dev)) { |
4825 | spin_lock_irq(&np->lock); | |
4826 | writel(np->txrxctl_bits, base + NvRegTxRxControl); | |
4827 | spin_unlock_irq(&np->lock); | |
4828 | } | |
4829 | } else { | |
4830 | return -EINVAL; | |
4831 | } | |
4832 | ||
4833 | return retcode; | |
4834 | } | |
4835 | ||
4836 | static int nv_set_tx_csum(struct net_device *dev, u32 data) | |
4837 | { | |
4838 | struct fe_priv *np = netdev_priv(dev); | |
4839 | ||
4840 | if (np->driver_data & DEV_HAS_CHECKSUM) | |
c1086cda | 4841 | return ethtool_op_set_tx_csum(dev, data); |
5ed2616f AA |
4842 | else |
4843 | return -EOPNOTSUPP; | |
4844 | } | |
4845 | ||
4846 | static int nv_set_sg(struct net_device *dev, u32 data) | |
4847 | { | |
4848 | struct fe_priv *np = netdev_priv(dev); | |
4849 | ||
4850 | if (np->driver_data & DEV_HAS_CHECKSUM) | |
4851 | return ethtool_op_set_sg(dev, data); | |
4852 | else | |
4853 | return -EOPNOTSUPP; | |
4854 | } | |
4855 | ||
b9f2c044 | 4856 | static int nv_get_sset_count(struct net_device *dev, int sset) |
52da3578 AA |
4857 | { |
4858 | struct fe_priv *np = netdev_priv(dev); | |
4859 | ||
b9f2c044 JG |
4860 | switch (sset) { |
4861 | case ETH_SS_TEST: | |
4862 | if (np->driver_data & DEV_HAS_TEST_EXTENDED) | |
4863 | return NV_TEST_COUNT_EXTENDED; | |
4864 | else | |
4865 | return NV_TEST_COUNT_BASE; | |
4866 | case ETH_SS_STATS: | |
8ed1454a AA |
4867 | if (np->driver_data & DEV_HAS_STATISTICS_V3) |
4868 | return NV_DEV_STATISTICS_V3_COUNT; | |
b9f2c044 JG |
4869 | else if (np->driver_data & DEV_HAS_STATISTICS_V2) |
4870 | return NV_DEV_STATISTICS_V2_COUNT; | |
8ed1454a AA |
4871 | else if (np->driver_data & DEV_HAS_STATISTICS_V1) |
4872 | return NV_DEV_STATISTICS_V1_COUNT; | |
b9f2c044 JG |
4873 | else |
4874 | return 0; | |
4875 | default: | |
4876 | return -EOPNOTSUPP; | |
4877 | } | |
52da3578 AA |
4878 | } |
4879 | ||
4880 | static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer) | |
4881 | { | |
4882 | struct fe_priv *np = netdev_priv(dev); | |
4883 | ||
4884 | /* update stats */ | |
4885 | nv_do_stats_poll((unsigned long)dev); | |
4886 | ||
b9f2c044 | 4887 | memcpy(buffer, &np->estats, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64)); |
9589c77a AA |
4888 | } |
4889 | ||
4890 | static int nv_link_test(struct net_device *dev) | |
4891 | { | |
4892 | struct fe_priv *np = netdev_priv(dev); | |
4893 | int mii_status; | |
4894 | ||
4895 | mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
4896 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
4897 | ||
4898 | /* check phy link status */ | |
4899 | if (!(mii_status & BMSR_LSTATUS)) | |
4900 | return 0; | |
4901 | else | |
4902 | return 1; | |
4903 | } | |
4904 | ||
4905 | static int nv_register_test(struct net_device *dev) | |
4906 | { | |
4907 | u8 __iomem *base = get_hwbase(dev); | |
4908 | int i = 0; | |
4909 | u32 orig_read, new_read; | |
4910 | ||
4911 | do { | |
4912 | orig_read = readl(base + nv_registers_test[i].reg); | |
4913 | ||
4914 | /* xor with mask to toggle bits */ | |
4915 | orig_read ^= nv_registers_test[i].mask; | |
4916 | ||
4917 | writel(orig_read, base + nv_registers_test[i].reg); | |
4918 | ||
4919 | new_read = readl(base + nv_registers_test[i].reg); | |
4920 | ||
4921 | if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask)) | |
4922 | return 0; | |
4923 | ||
4924 | /* restore original value */ | |
4925 | orig_read ^= nv_registers_test[i].mask; | |
4926 | writel(orig_read, base + nv_registers_test[i].reg); | |
4927 | ||
4928 | } while (nv_registers_test[++i].reg != 0); | |
4929 | ||
4930 | return 1; | |
4931 | } | |
4932 | ||
4933 | static int nv_interrupt_test(struct net_device *dev) | |
4934 | { | |
4935 | struct fe_priv *np = netdev_priv(dev); | |
4936 | u8 __iomem *base = get_hwbase(dev); | |
4937 | int ret = 1; | |
4938 | int testcnt; | |
4939 | u32 save_msi_flags, save_poll_interval = 0; | |
4940 | ||
4941 | if (netif_running(dev)) { | |
4942 | /* free current irq */ | |
4943 | nv_free_irq(dev); | |
4944 | save_poll_interval = readl(base+NvRegPollingInterval); | |
4945 | } | |
4946 | ||
4947 | /* flag to test interrupt handler */ | |
4948 | np->intr_test = 0; | |
4949 | ||
4950 | /* setup test irq */ | |
4951 | save_msi_flags = np->msi_flags; | |
4952 | np->msi_flags &= ~NV_MSI_X_VECTORS_MASK; | |
4953 | np->msi_flags |= 0x001; /* setup 1 vector */ | |
4954 | if (nv_request_irq(dev, 1)) | |
4955 | return 0; | |
4956 | ||
4957 | /* setup timer interrupt */ | |
4958 | writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); | |
4959 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); | |
4960 | ||
4961 | nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER); | |
4962 | ||
4963 | /* wait for at least one interrupt */ | |
4964 | msleep(100); | |
4965 | ||
4966 | spin_lock_irq(&np->lock); | |
4967 | ||
4968 | /* flag should be set within ISR */ | |
4969 | testcnt = np->intr_test; | |
4970 | if (!testcnt) | |
4971 | ret = 2; | |
4972 | ||
4973 | nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER); | |
4974 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
4975 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
4976 | else | |
4977 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); | |
4978 | ||
4979 | spin_unlock_irq(&np->lock); | |
4980 | ||
4981 | nv_free_irq(dev); | |
4982 | ||
4983 | np->msi_flags = save_msi_flags; | |
4984 | ||
4985 | if (netif_running(dev)) { | |
4986 | writel(save_poll_interval, base + NvRegPollingInterval); | |
4987 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); | |
4988 | /* restore original irq */ | |
4989 | if (nv_request_irq(dev, 0)) | |
4990 | return 0; | |
4991 | } | |
4992 | ||
4993 | return ret; | |
4994 | } | |
4995 | ||
4996 | static int nv_loopback_test(struct net_device *dev) | |
4997 | { | |
4998 | struct fe_priv *np = netdev_priv(dev); | |
4999 | u8 __iomem *base = get_hwbase(dev); | |
5000 | struct sk_buff *tx_skb, *rx_skb; | |
5001 | dma_addr_t test_dma_addr; | |
5002 | u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); | |
f82a9352 | 5003 | u32 flags; |
9589c77a AA |
5004 | int len, i, pkt_len; |
5005 | u8 *pkt_data; | |
5006 | u32 filter_flags = 0; | |
5007 | u32 misc1_flags = 0; | |
5008 | int ret = 1; | |
5009 | ||
5010 | if (netif_running(dev)) { | |
5011 | nv_disable_irq(dev); | |
5012 | filter_flags = readl(base + NvRegPacketFilterFlags); | |
5013 | misc1_flags = readl(base + NvRegMisc1); | |
5014 | } else { | |
5015 | nv_txrx_reset(dev); | |
5016 | } | |
5017 | ||
5018 | /* reinit driver view of the rx queue */ | |
5019 | set_bufsize(dev); | |
5020 | nv_init_ring(dev); | |
5021 | ||
5022 | /* setup hardware for loopback */ | |
5023 | writel(NVREG_MISC1_FORCE, base + NvRegMisc1); | |
5024 | writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags); | |
5025 | ||
5026 | /* reinit nic view of the rx queue */ | |
5027 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
5028 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
5029 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), | |
5030 | base + NvRegRingSizes); | |
5031 | pci_push(base); | |
5032 | ||
5033 | /* restart rx engine */ | |
36b30ea9 | 5034 | nv_start_rxtx(dev); |
9589c77a AA |
5035 | |
5036 | /* setup packet for tx */ | |
5037 | pkt_len = ETH_DATA_LEN; | |
5038 | tx_skb = dev_alloc_skb(pkt_len); | |
46798c89 JJ |
5039 | if (!tx_skb) { |
5040 | printk(KERN_ERR "dev_alloc_skb() failed during loopback test" | |
5041 | " of %s\n", dev->name); | |
5042 | ret = 0; | |
5043 | goto out; | |
5044 | } | |
8b5be268 ACM |
5045 | test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data, |
5046 | skb_tailroom(tx_skb), | |
5047 | PCI_DMA_FROMDEVICE); | |
9589c77a AA |
5048 | pkt_data = skb_put(tx_skb, pkt_len); |
5049 | for (i = 0; i < pkt_len; i++) | |
5050 | pkt_data[i] = (u8)(i & 0xff); | |
9589c77a | 5051 | |
36b30ea9 | 5052 | if (!nv_optimized(np)) { |
f82a9352 SH |
5053 | np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr); |
5054 | np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); | |
9589c77a | 5055 | } else { |
5bb7ea26 AV |
5056 | np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr)); |
5057 | np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr)); | |
f82a9352 | 5058 | np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); |
9589c77a AA |
5059 | } |
5060 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
5061 | pci_push(get_hwbase(dev)); | |
5062 | ||
5063 | msleep(500); | |
5064 | ||
5065 | /* check for rx of the packet */ | |
36b30ea9 | 5066 | if (!nv_optimized(np)) { |
f82a9352 | 5067 | flags = le32_to_cpu(np->rx_ring.orig[0].flaglen); |
9589c77a AA |
5068 | len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver); |
5069 | ||
5070 | } else { | |
f82a9352 | 5071 | flags = le32_to_cpu(np->rx_ring.ex[0].flaglen); |
9589c77a AA |
5072 | len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver); |
5073 | } | |
5074 | ||
f82a9352 | 5075 | if (flags & NV_RX_AVAIL) { |
9589c77a AA |
5076 | ret = 0; |
5077 | } else if (np->desc_ver == DESC_VER_1) { | |
f82a9352 | 5078 | if (flags & NV_RX_ERROR) |
9589c77a AA |
5079 | ret = 0; |
5080 | } else { | |
f82a9352 | 5081 | if (flags & NV_RX2_ERROR) { |
9589c77a AA |
5082 | ret = 0; |
5083 | } | |
5084 | } | |
5085 | ||
5086 | if (ret) { | |
5087 | if (len != pkt_len) { | |
5088 | ret = 0; | |
5089 | dprintk(KERN_DEBUG "%s: loopback len mismatch %d vs %d\n", | |
5090 | dev->name, len, pkt_len); | |
5091 | } else { | |
761fcd9e | 5092 | rx_skb = np->rx_skb[0].skb; |
9589c77a AA |
5093 | for (i = 0; i < pkt_len; i++) { |
5094 | if (rx_skb->data[i] != (u8)(i & 0xff)) { | |
5095 | ret = 0; | |
5096 | dprintk(KERN_DEBUG "%s: loopback pattern check failed on byte %d\n", | |
5097 | dev->name, i); | |
5098 | break; | |
5099 | } | |
5100 | } | |
5101 | } | |
5102 | } else { | |
5103 | dprintk(KERN_DEBUG "%s: loopback - did not receive test packet\n", dev->name); | |
5104 | } | |
5105 | ||
73a37079 | 5106 | pci_unmap_single(np->pci_dev, test_dma_addr, |
4305b541 | 5107 | (skb_end_pointer(tx_skb) - tx_skb->data), |
9589c77a AA |
5108 | PCI_DMA_TODEVICE); |
5109 | dev_kfree_skb_any(tx_skb); | |
46798c89 | 5110 | out: |
9589c77a | 5111 | /* stop engines */ |
36b30ea9 | 5112 | nv_stop_rxtx(dev); |
9589c77a AA |
5113 | nv_txrx_reset(dev); |
5114 | /* drain rx queue */ | |
36b30ea9 | 5115 | nv_drain_rxtx(dev); |
9589c77a AA |
5116 | |
5117 | if (netif_running(dev)) { | |
5118 | writel(misc1_flags, base + NvRegMisc1); | |
5119 | writel(filter_flags, base + NvRegPacketFilterFlags); | |
5120 | nv_enable_irq(dev); | |
5121 | } | |
5122 | ||
5123 | return ret; | |
5124 | } | |
5125 | ||
5126 | static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer) | |
5127 | { | |
5128 | struct fe_priv *np = netdev_priv(dev); | |
5129 | u8 __iomem *base = get_hwbase(dev); | |
5130 | int result; | |
b9f2c044 | 5131 | memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64)); |
9589c77a AA |
5132 | |
5133 | if (!nv_link_test(dev)) { | |
5134 | test->flags |= ETH_TEST_FL_FAILED; | |
5135 | buffer[0] = 1; | |
5136 | } | |
5137 | ||
5138 | if (test->flags & ETH_TEST_FL_OFFLINE) { | |
5139 | if (netif_running(dev)) { | |
5140 | netif_stop_queue(dev); | |
08d93575 | 5141 | nv_napi_disable(dev); |
58dfd9c1 | 5142 | netif_tx_lock_bh(dev); |
e308a5d8 | 5143 | netif_addr_lock(dev); |
9589c77a AA |
5144 | spin_lock_irq(&np->lock); |
5145 | nv_disable_hw_interrupts(dev, np->irqmask); | |
5146 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { | |
5147 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
5148 | } else { | |
5149 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); | |
5150 | } | |
5151 | /* stop engines */ | |
36b30ea9 | 5152 | nv_stop_rxtx(dev); |
9589c77a AA |
5153 | nv_txrx_reset(dev); |
5154 | /* drain rx queue */ | |
36b30ea9 | 5155 | nv_drain_rxtx(dev); |
9589c77a | 5156 | spin_unlock_irq(&np->lock); |
e308a5d8 | 5157 | netif_addr_unlock(dev); |
58dfd9c1 | 5158 | netif_tx_unlock_bh(dev); |
9589c77a AA |
5159 | } |
5160 | ||
5161 | if (!nv_register_test(dev)) { | |
5162 | test->flags |= ETH_TEST_FL_FAILED; | |
5163 | buffer[1] = 1; | |
5164 | } | |
5165 | ||
5166 | result = nv_interrupt_test(dev); | |
5167 | if (result != 1) { | |
5168 | test->flags |= ETH_TEST_FL_FAILED; | |
5169 | buffer[2] = 1; | |
5170 | } | |
5171 | if (result == 0) { | |
5172 | /* bail out */ | |
5173 | return; | |
5174 | } | |
5175 | ||
5176 | if (!nv_loopback_test(dev)) { | |
5177 | test->flags |= ETH_TEST_FL_FAILED; | |
5178 | buffer[3] = 1; | |
5179 | } | |
5180 | ||
5181 | if (netif_running(dev)) { | |
5182 | /* reinit driver view of the rx queue */ | |
5183 | set_bufsize(dev); | |
5184 | if (nv_init_ring(dev)) { | |
5185 | if (!np->in_shutdown) | |
5186 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
5187 | } | |
5188 | /* reinit nic view of the rx queue */ | |
5189 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
5190 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
5191 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), | |
5192 | base + NvRegRingSizes); | |
5193 | pci_push(base); | |
5194 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
5195 | pci_push(base); | |
5196 | /* restart rx engine */ | |
36b30ea9 | 5197 | nv_start_rxtx(dev); |
9589c77a | 5198 | netif_start_queue(dev); |
08d93575 | 5199 | nv_napi_enable(dev); |
9589c77a AA |
5200 | nv_enable_hw_interrupts(dev, np->irqmask); |
5201 | } | |
5202 | } | |
5203 | } | |
5204 | ||
52da3578 AA |
5205 | static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer) |
5206 | { | |
5207 | switch (stringset) { | |
5208 | case ETH_SS_STATS: | |
b9f2c044 | 5209 | memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str)); |
52da3578 | 5210 | break; |
9589c77a | 5211 | case ETH_SS_TEST: |
b9f2c044 | 5212 | memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str)); |
9589c77a | 5213 | break; |
52da3578 AA |
5214 | } |
5215 | } | |
5216 | ||
7282d491 | 5217 | static const struct ethtool_ops ops = { |
1da177e4 LT |
5218 | .get_drvinfo = nv_get_drvinfo, |
5219 | .get_link = ethtool_op_get_link, | |
5220 | .get_wol = nv_get_wol, | |
5221 | .set_wol = nv_set_wol, | |
5222 | .get_settings = nv_get_settings, | |
5223 | .set_settings = nv_set_settings, | |
dc8216c1 MS |
5224 | .get_regs_len = nv_get_regs_len, |
5225 | .get_regs = nv_get_regs, | |
5226 | .nway_reset = nv_nway_reset, | |
6a78814f | 5227 | .set_tso = nv_set_tso, |
eafa59f6 AA |
5228 | .get_ringparam = nv_get_ringparam, |
5229 | .set_ringparam = nv_set_ringparam, | |
b6d0773f AA |
5230 | .get_pauseparam = nv_get_pauseparam, |
5231 | .set_pauseparam = nv_set_pauseparam, | |
5ed2616f AA |
5232 | .get_rx_csum = nv_get_rx_csum, |
5233 | .set_rx_csum = nv_set_rx_csum, | |
5ed2616f | 5234 | .set_tx_csum = nv_set_tx_csum, |
5ed2616f | 5235 | .set_sg = nv_set_sg, |
52da3578 | 5236 | .get_strings = nv_get_strings, |
52da3578 | 5237 | .get_ethtool_stats = nv_get_ethtool_stats, |
b9f2c044 | 5238 | .get_sset_count = nv_get_sset_count, |
9589c77a | 5239 | .self_test = nv_self_test, |
1da177e4 LT |
5240 | }; |
5241 | ||
ee407b02 AA |
5242 | static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
5243 | { | |
5244 | struct fe_priv *np = get_nvpriv(dev); | |
5245 | ||
5246 | spin_lock_irq(&np->lock); | |
5247 | ||
5248 | /* save vlan group */ | |
5249 | np->vlangrp = grp; | |
5250 | ||
5251 | if (grp) { | |
5252 | /* enable vlan on MAC */ | |
5253 | np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS; | |
5254 | } else { | |
5255 | /* disable vlan on MAC */ | |
5256 | np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP; | |
5257 | np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS; | |
5258 | } | |
5259 | ||
5260 | writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
5261 | ||
5262 | spin_unlock_irq(&np->lock); | |
25805dcf | 5263 | } |
ee407b02 | 5264 | |
7e680c22 AA |
5265 | /* The mgmt unit and driver use a semaphore to access the phy during init */ |
5266 | static int nv_mgmt_acquire_sema(struct net_device *dev) | |
5267 | { | |
cac1c52c | 5268 | struct fe_priv *np = netdev_priv(dev); |
7e680c22 AA |
5269 | u8 __iomem *base = get_hwbase(dev); |
5270 | int i; | |
5271 | u32 tx_ctrl, mgmt_sema; | |
5272 | ||
5273 | for (i = 0; i < 10; i++) { | |
5274 | mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK; | |
5275 | if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE) | |
5276 | break; | |
5277 | msleep(500); | |
5278 | } | |
5279 | ||
5280 | if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE) | |
5281 | return 0; | |
5282 | ||
5283 | for (i = 0; i < 2; i++) { | |
5284 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5285 | tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ; | |
5286 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
5287 | ||
5288 | /* verify that semaphore was acquired */ | |
5289 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5290 | if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) && | |
cac1c52c AA |
5291 | ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) { |
5292 | np->mgmt_sema = 1; | |
7e680c22 | 5293 | return 1; |
cac1c52c | 5294 | } |
7e680c22 AA |
5295 | else |
5296 | udelay(50); | |
5297 | } | |
5298 | ||
5299 | return 0; | |
5300 | } | |
5301 | ||
cac1c52c AA |
5302 | static void nv_mgmt_release_sema(struct net_device *dev) |
5303 | { | |
5304 | struct fe_priv *np = netdev_priv(dev); | |
5305 | u8 __iomem *base = get_hwbase(dev); | |
5306 | u32 tx_ctrl; | |
5307 | ||
5308 | if (np->driver_data & DEV_HAS_MGMT_UNIT) { | |
5309 | if (np->mgmt_sema) { | |
5310 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5311 | tx_ctrl &= ~NVREG_XMITCTL_HOST_SEMA_ACQ; | |
5312 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
5313 | } | |
5314 | } | |
5315 | } | |
5316 | ||
5317 | ||
5318 | static int nv_mgmt_get_version(struct net_device *dev) | |
5319 | { | |
5320 | struct fe_priv *np = netdev_priv(dev); | |
5321 | u8 __iomem *base = get_hwbase(dev); | |
5322 | u32 data_ready = readl(base + NvRegTransmitterControl); | |
5323 | u32 data_ready2 = 0; | |
5324 | unsigned long start; | |
5325 | int ready = 0; | |
5326 | ||
5327 | writel(NVREG_MGMTUNITGETVERSION, base + NvRegMgmtUnitGetVersion); | |
5328 | writel(data_ready ^ NVREG_XMITCTL_DATA_START, base + NvRegTransmitterControl); | |
5329 | start = jiffies; | |
5330 | while (time_before(jiffies, start + 5*HZ)) { | |
5331 | data_ready2 = readl(base + NvRegTransmitterControl); | |
5332 | if ((data_ready & NVREG_XMITCTL_DATA_READY) != (data_ready2 & NVREG_XMITCTL_DATA_READY)) { | |
5333 | ready = 1; | |
5334 | break; | |
5335 | } | |
5336 | schedule_timeout_uninterruptible(1); | |
5337 | } | |
5338 | ||
5339 | if (!ready || (data_ready2 & NVREG_XMITCTL_DATA_ERROR)) | |
5340 | return 0; | |
5341 | ||
5342 | np->mgmt_version = readl(base + NvRegMgmtUnitVersion) & NVREG_MGMTUNITVERSION; | |
5343 | ||
5344 | return 1; | |
5345 | } | |
5346 | ||
1da177e4 LT |
5347 | static int nv_open(struct net_device *dev) |
5348 | { | |
ac9c1897 | 5349 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 5350 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 AA |
5351 | int ret = 1; |
5352 | int oom, i; | |
a433686c | 5353 | u32 low; |
1da177e4 LT |
5354 | |
5355 | dprintk(KERN_DEBUG "nv_open: begin\n"); | |
5356 | ||
cb52deba ES |
5357 | /* power up phy */ |
5358 | mii_rw(dev, np->phyaddr, MII_BMCR, | |
5359 | mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ) & ~BMCR_PDOWN); | |
5360 | ||
88d7d8b0 | 5361 | nv_txrx_gate(dev, false); |
f1489653 | 5362 | /* erase previous misconfiguration */ |
86a0f043 AA |
5363 | if (np->driver_data & DEV_HAS_POWER_CNTRL) |
5364 | nv_mac_reset(dev); | |
1da177e4 LT |
5365 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); |
5366 | writel(0, base + NvRegMulticastAddrB); | |
bb9a4fd1 AA |
5367 | writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA); |
5368 | writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB); | |
1da177e4 LT |
5369 | writel(0, base + NvRegPacketFilterFlags); |
5370 | ||
5371 | writel(0, base + NvRegTransmitterControl); | |
5372 | writel(0, base + NvRegReceiverControl); | |
5373 | ||
5374 | writel(0, base + NvRegAdapterControl); | |
5375 | ||
eb91f61b AA |
5376 | if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) |
5377 | writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); | |
5378 | ||
f1489653 | 5379 | /* initialize descriptor rings */ |
d81c0983 | 5380 | set_bufsize(dev); |
1da177e4 LT |
5381 | oom = nv_init_ring(dev); |
5382 | ||
5383 | writel(0, base + NvRegLinkSpeed); | |
5070d340 | 5384 | writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll); |
1da177e4 LT |
5385 | nv_txrx_reset(dev); |
5386 | writel(0, base + NvRegUnknownSetupReg6); | |
5387 | ||
5388 | np->in_shutdown = 0; | |
5389 | ||
f1489653 | 5390 | /* give hw rings */ |
0832b25a | 5391 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
eafa59f6 | 5392 | writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
1da177e4 LT |
5393 | base + NvRegRingSizes); |
5394 | ||
1da177e4 | 5395 | writel(np->linkspeed, base + NvRegLinkSpeed); |
95d161cb AA |
5396 | if (np->desc_ver == DESC_VER_1) |
5397 | writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark); | |
5398 | else | |
5399 | writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark); | |
8a4ae7f2 | 5400 | writel(np->txrxctl_bits, base + NvRegTxRxControl); |
ee407b02 | 5401 | writel(np->vlanctl_bits, base + NvRegVlanControl); |
1da177e4 | 5402 | pci_push(base); |
8a4ae7f2 | 5403 | writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl); |
1da177e4 LT |
5404 | reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31, |
5405 | NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX, | |
5406 | KERN_INFO "open: SetupReg5, Bit 31 remained off\n"); | |
5407 | ||
7e680c22 | 5408 | writel(0, base + NvRegMIIMask); |
1da177e4 | 5409 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
eb798428 | 5410 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 | 5411 | |
1da177e4 LT |
5412 | writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1); |
5413 | writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus); | |
5414 | writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags); | |
d81c0983 | 5415 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); |
1da177e4 LT |
5416 | |
5417 | writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus); | |
a433686c AA |
5418 | |
5419 | get_random_bytes(&low, sizeof(low)); | |
5420 | low &= NVREG_SLOTTIME_MASK; | |
5421 | if (np->desc_ver == DESC_VER_1) { | |
5422 | writel(low|NVREG_SLOTTIME_DEFAULT, base + NvRegSlotTime); | |
5423 | } else { | |
5424 | if (!(np->driver_data & DEV_HAS_GEAR_MODE)) { | |
5425 | /* setup legacy backoff */ | |
5426 | writel(NVREG_SLOTTIME_LEGBF_ENABLED|NVREG_SLOTTIME_10_100_FULL|low, base + NvRegSlotTime); | |
5427 | } else { | |
5428 | writel(NVREG_SLOTTIME_10_100_FULL, base + NvRegSlotTime); | |
5429 | nv_gear_backoff_reseed(dev); | |
5430 | } | |
5431 | } | |
9744e218 AA |
5432 | writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral); |
5433 | writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral); | |
a971c324 AA |
5434 | if (poll_interval == -1) { |
5435 | if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) | |
5436 | writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval); | |
5437 | else | |
5438 | writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); | |
5439 | } | |
5440 | else | |
5441 | writel(poll_interval & 0xFFFF, base + NvRegPollingInterval); | |
1da177e4 LT |
5442 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); |
5443 | writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING, | |
5444 | base + NvRegAdapterControl); | |
5445 | writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed); | |
7e680c22 | 5446 | writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask); |
c42d9df9 AA |
5447 | if (np->wolenabled) |
5448 | writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags); | |
1da177e4 LT |
5449 | |
5450 | i = readl(base + NvRegPowerState); | |
5451 | if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0) | |
5452 | writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState); | |
5453 | ||
5454 | pci_push(base); | |
5455 | udelay(10); | |
5456 | writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState); | |
5457 | ||
84b3932b | 5458 | nv_disable_hw_interrupts(dev, np->irqmask); |
1da177e4 | 5459 | pci_push(base); |
eb798428 | 5460 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 LT |
5461 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
5462 | pci_push(base); | |
5463 | ||
9589c77a | 5464 | if (nv_request_irq(dev, 0)) { |
84b3932b | 5465 | goto out_drain; |
d33a73c8 | 5466 | } |
1da177e4 LT |
5467 | |
5468 | /* ask for interrupts */ | |
84b3932b | 5469 | nv_enable_hw_interrupts(dev, np->irqmask); |
1da177e4 LT |
5470 | |
5471 | spin_lock_irq(&np->lock); | |
5472 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); | |
5473 | writel(0, base + NvRegMulticastAddrB); | |
bb9a4fd1 AA |
5474 | writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA); |
5475 | writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB); | |
1da177e4 LT |
5476 | writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); |
5477 | /* One manual link speed update: Interrupts are enabled, future link | |
5478 | * speed changes cause interrupts and are handled by nv_link_irq(). | |
5479 | */ | |
5480 | { | |
5481 | u32 miistat; | |
5482 | miistat = readl(base + NvRegMIIStatus); | |
eb798428 | 5483 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 LT |
5484 | dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat); |
5485 | } | |
1b1b3c9b MS |
5486 | /* set linkspeed to invalid value, thus force nv_update_linkspeed |
5487 | * to init hw */ | |
5488 | np->linkspeed = 0; | |
1da177e4 | 5489 | ret = nv_update_linkspeed(dev); |
36b30ea9 | 5490 | nv_start_rxtx(dev); |
1da177e4 | 5491 | netif_start_queue(dev); |
08d93575 | 5492 | nv_napi_enable(dev); |
e27cdba5 | 5493 | |
1da177e4 LT |
5494 | if (ret) { |
5495 | netif_carrier_on(dev); | |
5496 | } else { | |
f7ab697d | 5497 | printk(KERN_INFO "%s: no link during initialization.\n", dev->name); |
1da177e4 LT |
5498 | netif_carrier_off(dev); |
5499 | } | |
5500 | if (oom) | |
5501 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
52da3578 AA |
5502 | |
5503 | /* start statistics timer */ | |
9c662435 | 5504 | if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3)) |
bfebbb88 DD |
5505 | mod_timer(&np->stats_poll, |
5506 | round_jiffies(jiffies + STATS_INTERVAL)); | |
52da3578 | 5507 | |
1da177e4 LT |
5508 | spin_unlock_irq(&np->lock); |
5509 | ||
5510 | return 0; | |
5511 | out_drain: | |
36b30ea9 | 5512 | nv_drain_rxtx(dev); |
1da177e4 LT |
5513 | return ret; |
5514 | } | |
5515 | ||
5516 | static int nv_close(struct net_device *dev) | |
5517 | { | |
ac9c1897 | 5518 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
5519 | u8 __iomem *base; |
5520 | ||
5521 | spin_lock_irq(&np->lock); | |
5522 | np->in_shutdown = 1; | |
5523 | spin_unlock_irq(&np->lock); | |
08d93575 | 5524 | nv_napi_disable(dev); |
a7475906 | 5525 | synchronize_irq(np->pci_dev->irq); |
1da177e4 LT |
5526 | |
5527 | del_timer_sync(&np->oom_kick); | |
5528 | del_timer_sync(&np->nic_poll); | |
52da3578 | 5529 | del_timer_sync(&np->stats_poll); |
1da177e4 LT |
5530 | |
5531 | netif_stop_queue(dev); | |
5532 | spin_lock_irq(&np->lock); | |
36b30ea9 | 5533 | nv_stop_rxtx(dev); |
1da177e4 LT |
5534 | nv_txrx_reset(dev); |
5535 | ||
5536 | /* disable interrupts on the nic or we will lock up */ | |
5537 | base = get_hwbase(dev); | |
84b3932b | 5538 | nv_disable_hw_interrupts(dev, np->irqmask); |
1da177e4 LT |
5539 | pci_push(base); |
5540 | dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name); | |
5541 | ||
5542 | spin_unlock_irq(&np->lock); | |
5543 | ||
84b3932b | 5544 | nv_free_irq(dev); |
1da177e4 | 5545 | |
36b30ea9 | 5546 | nv_drain_rxtx(dev); |
1da177e4 | 5547 | |
5a9a8e32 | 5548 | if (np->wolenabled || !phy_power_down) { |
88d7d8b0 | 5549 | nv_txrx_gate(dev, false); |
2cc49a5c | 5550 | writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); |
1da177e4 | 5551 | nv_start_rx(dev); |
cb52deba ES |
5552 | } else { |
5553 | /* power down phy */ | |
5554 | mii_rw(dev, np->phyaddr, MII_BMCR, | |
5555 | mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ)|BMCR_PDOWN); | |
88d7d8b0 | 5556 | nv_txrx_gate(dev, true); |
2cc49a5c | 5557 | } |
1da177e4 LT |
5558 | |
5559 | /* FIXME: power down nic */ | |
5560 | ||
5561 | return 0; | |
5562 | } | |
5563 | ||
b94426bd SH |
5564 | static const struct net_device_ops nv_netdev_ops = { |
5565 | .ndo_open = nv_open, | |
5566 | .ndo_stop = nv_close, | |
5567 | .ndo_get_stats = nv_get_stats, | |
00829823 SH |
5568 | .ndo_start_xmit = nv_start_xmit, |
5569 | .ndo_tx_timeout = nv_tx_timeout, | |
5570 | .ndo_change_mtu = nv_change_mtu, | |
5571 | .ndo_validate_addr = eth_validate_addr, | |
5572 | .ndo_set_mac_address = nv_set_mac_address, | |
5573 | .ndo_set_multicast_list = nv_set_multicast, | |
5574 | .ndo_vlan_rx_register = nv_vlan_rx_register, | |
5575 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
5576 | .ndo_poll_controller = nv_poll_controller, | |
5577 | #endif | |
5578 | }; | |
5579 | ||
5580 | static const struct net_device_ops nv_netdev_ops_optimized = { | |
5581 | .ndo_open = nv_open, | |
5582 | .ndo_stop = nv_close, | |
5583 | .ndo_get_stats = nv_get_stats, | |
5584 | .ndo_start_xmit = nv_start_xmit_optimized, | |
b94426bd SH |
5585 | .ndo_tx_timeout = nv_tx_timeout, |
5586 | .ndo_change_mtu = nv_change_mtu, | |
5587 | .ndo_validate_addr = eth_validate_addr, | |
5588 | .ndo_set_mac_address = nv_set_mac_address, | |
5589 | .ndo_set_multicast_list = nv_set_multicast, | |
5590 | .ndo_vlan_rx_register = nv_vlan_rx_register, | |
5591 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
5592 | .ndo_poll_controller = nv_poll_controller, | |
5593 | #endif | |
5594 | }; | |
5595 | ||
1da177e4 LT |
5596 | static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) |
5597 | { | |
5598 | struct net_device *dev; | |
5599 | struct fe_priv *np; | |
5600 | unsigned long addr; | |
5601 | u8 __iomem *base; | |
5602 | int err, i; | |
5070d340 | 5603 | u32 powerstate, txreg; |
7e680c22 AA |
5604 | u32 phystate_orig = 0, phystate; |
5605 | int phyinitialized = 0; | |
3f88ce49 JG |
5606 | static int printed_version; |
5607 | ||
5608 | if (!printed_version++) | |
5609 | printk(KERN_INFO "%s: Reverse Engineered nForce ethernet" | |
5610 | " driver. Version %s.\n", DRV_NAME, FORCEDETH_VERSION); | |
1da177e4 LT |
5611 | |
5612 | dev = alloc_etherdev(sizeof(struct fe_priv)); | |
5613 | err = -ENOMEM; | |
5614 | if (!dev) | |
5615 | goto out; | |
5616 | ||
ac9c1897 | 5617 | np = netdev_priv(dev); |
bea3348e | 5618 | np->dev = dev; |
1da177e4 LT |
5619 | np->pci_dev = pci_dev; |
5620 | spin_lock_init(&np->lock); | |
1da177e4 LT |
5621 | SET_NETDEV_DEV(dev, &pci_dev->dev); |
5622 | ||
5623 | init_timer(&np->oom_kick); | |
5624 | np->oom_kick.data = (unsigned long) dev; | |
5625 | np->oom_kick.function = &nv_do_rx_refill; /* timer handler */ | |
5626 | init_timer(&np->nic_poll); | |
5627 | np->nic_poll.data = (unsigned long) dev; | |
5628 | np->nic_poll.function = &nv_do_nic_poll; /* timer handler */ | |
52da3578 AA |
5629 | init_timer(&np->stats_poll); |
5630 | np->stats_poll.data = (unsigned long) dev; | |
5631 | np->stats_poll.function = &nv_do_stats_poll; /* timer handler */ | |
1da177e4 LT |
5632 | |
5633 | err = pci_enable_device(pci_dev); | |
3f88ce49 | 5634 | if (err) |
1da177e4 | 5635 | goto out_free; |
1da177e4 LT |
5636 | |
5637 | pci_set_master(pci_dev); | |
5638 | ||
5639 | err = pci_request_regions(pci_dev, DRV_NAME); | |
5640 | if (err < 0) | |
5641 | goto out_disable; | |
5642 | ||
9c662435 | 5643 | if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3)) |
57fff698 AA |
5644 | np->register_size = NV_PCI_REGSZ_VER3; |
5645 | else if (id->driver_data & DEV_HAS_STATISTICS_V1) | |
86a0f043 AA |
5646 | np->register_size = NV_PCI_REGSZ_VER2; |
5647 | else | |
5648 | np->register_size = NV_PCI_REGSZ_VER1; | |
5649 | ||
1da177e4 LT |
5650 | err = -EINVAL; |
5651 | addr = 0; | |
5652 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
5653 | dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n", | |
5654 | pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i), | |
5655 | pci_resource_len(pci_dev, i), | |
5656 | pci_resource_flags(pci_dev, i)); | |
5657 | if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM && | |
86a0f043 | 5658 | pci_resource_len(pci_dev, i) >= np->register_size) { |
1da177e4 LT |
5659 | addr = pci_resource_start(pci_dev, i); |
5660 | break; | |
5661 | } | |
5662 | } | |
5663 | if (i == DEVICE_COUNT_RESOURCE) { | |
3f88ce49 JG |
5664 | dev_printk(KERN_INFO, &pci_dev->dev, |
5665 | "Couldn't find register window\n"); | |
1da177e4 LT |
5666 | goto out_relreg; |
5667 | } | |
5668 | ||
86a0f043 AA |
5669 | /* copy of driver data */ |
5670 | np->driver_data = id->driver_data; | |
9f3f7910 AA |
5671 | /* copy of device id */ |
5672 | np->device_id = id->device; | |
86a0f043 | 5673 | |
1da177e4 | 5674 | /* handle different descriptor versions */ |
ee73362c MS |
5675 | if (id->driver_data & DEV_HAS_HIGH_DMA) { |
5676 | /* packet format 3: supports 40-bit addressing */ | |
5677 | np->desc_ver = DESC_VER_3; | |
84b3932b | 5678 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_3; |
69fe3fd7 | 5679 | if (dma_64bit) { |
6afd142f | 5680 | if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(39))) |
3f88ce49 JG |
5681 | dev_printk(KERN_INFO, &pci_dev->dev, |
5682 | "64-bit DMA failed, using 32-bit addressing\n"); | |
5683 | else | |
69fe3fd7 | 5684 | dev->features |= NETIF_F_HIGHDMA; |
6afd142f | 5685 | if (pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(39))) { |
3f88ce49 JG |
5686 | dev_printk(KERN_INFO, &pci_dev->dev, |
5687 | "64-bit DMA (consistent) failed, using 32-bit ring buffers\n"); | |
69fe3fd7 | 5688 | } |
ee73362c MS |
5689 | } |
5690 | } else if (id->driver_data & DEV_HAS_LARGEDESC) { | |
5691 | /* packet format 2: supports jumbo frames */ | |
1da177e4 | 5692 | np->desc_ver = DESC_VER_2; |
8a4ae7f2 | 5693 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_2; |
ee73362c MS |
5694 | } else { |
5695 | /* original packet format */ | |
5696 | np->desc_ver = DESC_VER_1; | |
8a4ae7f2 | 5697 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_1; |
d81c0983 | 5698 | } |
ee73362c MS |
5699 | |
5700 | np->pkt_limit = NV_PKTLIMIT_1; | |
5701 | if (id->driver_data & DEV_HAS_LARGEDESC) | |
5702 | np->pkt_limit = NV_PKTLIMIT_2; | |
5703 | ||
8a4ae7f2 | 5704 | if (id->driver_data & DEV_HAS_CHECKSUM) { |
f2ad2d9b | 5705 | np->rx_csum = 1; |
8a4ae7f2 | 5706 | np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; |
edcfe5f7 | 5707 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; |
fa45459e | 5708 | dev->features |= NETIF_F_TSO; |
21828163 | 5709 | } |
8a4ae7f2 | 5710 | |
ee407b02 AA |
5711 | np->vlanctl_bits = 0; |
5712 | if (id->driver_data & DEV_HAS_VLAN) { | |
5713 | np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE; | |
5714 | dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX; | |
ee407b02 AA |
5715 | } |
5716 | ||
b6d0773f | 5717 | np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG; |
5289b4c4 AA |
5718 | if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) || |
5719 | (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) || | |
5720 | (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) { | |
b6d0773f | 5721 | np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ; |
eb91f61b | 5722 | } |
f3b197ac | 5723 | |
eb91f61b | 5724 | |
1da177e4 | 5725 | err = -ENOMEM; |
86a0f043 | 5726 | np->base = ioremap(addr, np->register_size); |
1da177e4 LT |
5727 | if (!np->base) |
5728 | goto out_relreg; | |
5729 | dev->base_addr = (unsigned long)np->base; | |
ee73362c | 5730 | |
1da177e4 | 5731 | dev->irq = pci_dev->irq; |
ee73362c | 5732 | |
eafa59f6 AA |
5733 | np->rx_ring_size = RX_RING_DEFAULT; |
5734 | np->tx_ring_size = TX_RING_DEFAULT; | |
eafa59f6 | 5735 | |
36b30ea9 | 5736 | if (!nv_optimized(np)) { |
ee73362c | 5737 | np->rx_ring.orig = pci_alloc_consistent(pci_dev, |
eafa59f6 | 5738 | sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size), |
ee73362c MS |
5739 | &np->ring_addr); |
5740 | if (!np->rx_ring.orig) | |
5741 | goto out_unmap; | |
eafa59f6 | 5742 | np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; |
ee73362c MS |
5743 | } else { |
5744 | np->rx_ring.ex = pci_alloc_consistent(pci_dev, | |
eafa59f6 | 5745 | sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), |
ee73362c MS |
5746 | &np->ring_addr); |
5747 | if (!np->rx_ring.ex) | |
5748 | goto out_unmap; | |
eafa59f6 AA |
5749 | np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; |
5750 | } | |
dd00cc48 YP |
5751 | np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); |
5752 | np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); | |
761fcd9e | 5753 | if (!np->rx_skb || !np->tx_skb) |
eafa59f6 | 5754 | goto out_freering; |
1da177e4 | 5755 | |
36b30ea9 | 5756 | if (!nv_optimized(np)) |
00829823 | 5757 | dev->netdev_ops = &nv_netdev_ops; |
86b22b0d | 5758 | else |
00829823 | 5759 | dev->netdev_ops = &nv_netdev_ops_optimized; |
b94426bd | 5760 | |
e27cdba5 | 5761 | #ifdef CONFIG_FORCEDETH_NAPI |
bea3348e | 5762 | netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP); |
2918c35d | 5763 | #endif |
1da177e4 | 5764 | SET_ETHTOOL_OPS(dev, &ops); |
1da177e4 LT |
5765 | dev->watchdog_timeo = NV_WATCHDOG_TIMEO; |
5766 | ||
5767 | pci_set_drvdata(pci_dev, dev); | |
5768 | ||
5769 | /* read the mac address */ | |
5770 | base = get_hwbase(dev); | |
5771 | np->orig_mac[0] = readl(base + NvRegMacAddrA); | |
5772 | np->orig_mac[1] = readl(base + NvRegMacAddrB); | |
5773 | ||
5070d340 AA |
5774 | /* check the workaround bit for correct mac address order */ |
5775 | txreg = readl(base + NvRegTransmitPoll); | |
a376e79c | 5776 | if (id->driver_data & DEV_HAS_CORRECT_MACADDR) { |
5070d340 AA |
5777 | /* mac address is already in correct order */ |
5778 | dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff; | |
5779 | dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff; | |
5780 | dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff; | |
5781 | dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff; | |
5782 | dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff; | |
5783 | dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff; | |
a376e79c AA |
5784 | } else if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) { |
5785 | /* mac address is already in correct order */ | |
5786 | dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff; | |
5787 | dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff; | |
5788 | dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff; | |
5789 | dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff; | |
5790 | dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff; | |
5791 | dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff; | |
5792 | /* | |
5793 | * Set orig mac address back to the reversed version. | |
5794 | * This flag will be cleared during low power transition. | |
5795 | * Therefore, we should always put back the reversed address. | |
5796 | */ | |
5797 | np->orig_mac[0] = (dev->dev_addr[5] << 0) + (dev->dev_addr[4] << 8) + | |
5798 | (dev->dev_addr[3] << 16) + (dev->dev_addr[2] << 24); | |
5799 | np->orig_mac[1] = (dev->dev_addr[1] << 0) + (dev->dev_addr[0] << 8); | |
5070d340 AA |
5800 | } else { |
5801 | /* need to reverse mac address to correct order */ | |
5802 | dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff; | |
5803 | dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff; | |
5804 | dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff; | |
5805 | dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff; | |
5806 | dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff; | |
5807 | dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff; | |
5070d340 | 5808 | writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll); |
f55c21fd | 5809 | printk(KERN_DEBUG "nv_probe: set workaround bit for reversed mac addr\n"); |
5070d340 | 5810 | } |
c704b856 | 5811 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 | 5812 | |
c704b856 | 5813 | if (!is_valid_ether_addr(dev->perm_addr)) { |
1da177e4 LT |
5814 | /* |
5815 | * Bad mac address. At least one bios sets the mac address | |
5816 | * to 01:23:45:67:89:ab | |
5817 | */ | |
3f88ce49 | 5818 | dev_printk(KERN_ERR, &pci_dev->dev, |
e174961c JB |
5819 | "Invalid Mac address detected: %pM\n", |
5820 | dev->dev_addr); | |
3f88ce49 JG |
5821 | dev_printk(KERN_ERR, &pci_dev->dev, |
5822 | "Please complain to your hardware vendor. Switching to a random MAC.\n"); | |
655a6595 | 5823 | random_ether_addr(dev->dev_addr); |
1da177e4 LT |
5824 | } |
5825 | ||
e174961c JB |
5826 | dprintk(KERN_DEBUG "%s: MAC Address %pM\n", |
5827 | pci_name(pci_dev), dev->dev_addr); | |
1da177e4 | 5828 | |
f1489653 AA |
5829 | /* set mac address */ |
5830 | nv_copy_mac_to_hw(dev); | |
5831 | ||
9a60a826 TD |
5832 | /* Workaround current PCI init glitch: wakeup bits aren't |
5833 | * being set from PCI PM capability. | |
5834 | */ | |
5835 | device_init_wakeup(&pci_dev->dev, 1); | |
5836 | ||
1da177e4 LT |
5837 | /* disable WOL */ |
5838 | writel(0, base + NvRegWakeUpFlags); | |
5839 | np->wolenabled = 0; | |
5840 | ||
86a0f043 | 5841 | if (id->driver_data & DEV_HAS_POWER_CNTRL) { |
86a0f043 AA |
5842 | |
5843 | /* take phy and nic out of low power mode */ | |
5844 | powerstate = readl(base + NvRegPowerState2); | |
5845 | powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK; | |
3c2e1c11 | 5846 | if ((id->driver_data & DEV_NEED_LOW_POWER_FIX) && |
44c10138 | 5847 | pci_dev->revision >= 0xA3) |
86a0f043 AA |
5848 | powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3; |
5849 | writel(powerstate, base + NvRegPowerState2); | |
5850 | } | |
5851 | ||
1da177e4 | 5852 | if (np->desc_ver == DESC_VER_1) { |
ac9c1897 | 5853 | np->tx_flags = NV_TX_VALID; |
1da177e4 | 5854 | } else { |
ac9c1897 | 5855 | np->tx_flags = NV_TX2_VALID; |
1da177e4 | 5856 | } |
9e184767 AA |
5857 | |
5858 | np->msi_flags = 0; | |
5859 | if ((id->driver_data & DEV_HAS_MSI) && msi) { | |
5860 | np->msi_flags |= NV_MSI_CAPABLE; | |
5861 | } | |
5862 | if ((id->driver_data & DEV_HAS_MSI_X) && msix) { | |
5863 | /* msix has had reported issues when modifying irqmask | |
5864 | as in the case of napi, therefore, disable for now | |
5865 | */ | |
5866 | #ifndef CONFIG_FORCEDETH_NAPI | |
5867 | np->msi_flags |= NV_MSI_X_CAPABLE; | |
5868 | #endif | |
5869 | } | |
5870 | ||
5871 | if (optimization_mode == NV_OPTIMIZATION_MODE_CPU) { | |
a971c324 | 5872 | np->irqmask = NVREG_IRQMASK_CPU; |
d33a73c8 AA |
5873 | if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ |
5874 | np->msi_flags |= 0x0001; | |
9e184767 AA |
5875 | } else if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC && |
5876 | !(id->driver_data & DEV_NEED_TIMERIRQ)) { | |
5877 | /* start off in throughput mode */ | |
5878 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
5879 | /* remove support for msix mode */ | |
5880 | np->msi_flags &= ~NV_MSI_X_CAPABLE; | |
5881 | } else { | |
5882 | optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT; | |
5883 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
5884 | if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ | |
5885 | np->msi_flags |= 0x0003; | |
d33a73c8 | 5886 | } |
a971c324 | 5887 | |
1da177e4 LT |
5888 | if (id->driver_data & DEV_NEED_TIMERIRQ) |
5889 | np->irqmask |= NVREG_IRQ_TIMER; | |
5890 | if (id->driver_data & DEV_NEED_LINKTIMER) { | |
5891 | dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev)); | |
5892 | np->need_linktimer = 1; | |
5893 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
5894 | } else { | |
5895 | dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev)); | |
5896 | np->need_linktimer = 0; | |
5897 | } | |
5898 | ||
3b446c3e AA |
5899 | /* Limit the number of tx's outstanding for hw bug */ |
5900 | if (id->driver_data & DEV_NEED_TX_LIMIT) { | |
5901 | np->tx_limit = 1; | |
5c659322 | 5902 | if (((id->driver_data & DEV_NEED_TX_LIMIT2) == DEV_NEED_TX_LIMIT2) && |
3b446c3e AA |
5903 | pci_dev->revision >= 0xA2) |
5904 | np->tx_limit = 0; | |
5905 | } | |
5906 | ||
7e680c22 AA |
5907 | /* clear phy state and temporarily halt phy interrupts */ |
5908 | writel(0, base + NvRegMIIMask); | |
5909 | phystate = readl(base + NvRegAdapterControl); | |
5910 | if (phystate & NVREG_ADAPTCTL_RUNNING) { | |
5911 | phystate_orig = 1; | |
5912 | phystate &= ~NVREG_ADAPTCTL_RUNNING; | |
5913 | writel(phystate, base + NvRegAdapterControl); | |
5914 | } | |
eb798428 | 5915 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
7e680c22 AA |
5916 | |
5917 | if (id->driver_data & DEV_HAS_MGMT_UNIT) { | |
7e680c22 | 5918 | /* management unit running on the mac? */ |
cac1c52c AA |
5919 | if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST) && |
5920 | (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) && | |
5921 | nv_mgmt_acquire_sema(dev) && | |
5922 | nv_mgmt_get_version(dev)) { | |
5923 | np->mac_in_use = 1; | |
5924 | if (np->mgmt_version > 0) { | |
5925 | np->mac_in_use = readl(base + NvRegMgmtUnitControl) & NVREG_MGMTUNITCONTROL_INUSE; | |
5926 | } | |
5927 | dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", | |
5928 | pci_name(pci_dev), np->mac_in_use); | |
5929 | /* management unit setup the phy already? */ | |
5930 | if (np->mac_in_use && | |
5931 | ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == | |
5932 | NVREG_XMITCTL_SYNC_PHY_INIT)) { | |
5933 | /* phy is inited by mgmt unit */ | |
5934 | phyinitialized = 1; | |
5935 | dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", | |
5936 | pci_name(pci_dev)); | |
5937 | } else { | |
5938 | /* we need to init the phy */ | |
7e680c22 AA |
5939 | } |
5940 | } | |
5941 | } | |
5942 | ||
1da177e4 | 5943 | /* find a suitable phy */ |
7a33e45a | 5944 | for (i = 1; i <= 32; i++) { |
1da177e4 | 5945 | int id1, id2; |
7a33e45a | 5946 | int phyaddr = i & 0x1F; |
1da177e4 LT |
5947 | |
5948 | spin_lock_irq(&np->lock); | |
7a33e45a | 5949 | id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ); |
1da177e4 LT |
5950 | spin_unlock_irq(&np->lock); |
5951 | if (id1 < 0 || id1 == 0xffff) | |
5952 | continue; | |
5953 | spin_lock_irq(&np->lock); | |
7a33e45a | 5954 | id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ); |
1da177e4 LT |
5955 | spin_unlock_irq(&np->lock); |
5956 | if (id2 < 0 || id2 == 0xffff) | |
5957 | continue; | |
5958 | ||
edf7e5ec | 5959 | np->phy_model = id2 & PHYID2_MODEL_MASK; |
1da177e4 LT |
5960 | id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT; |
5961 | id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT; | |
5962 | dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n", | |
7a33e45a AA |
5963 | pci_name(pci_dev), id1, id2, phyaddr); |
5964 | np->phyaddr = phyaddr; | |
1da177e4 | 5965 | np->phy_oui = id1 | id2; |
9f3f7910 AA |
5966 | |
5967 | /* Realtek hardcoded phy id1 to all zero's on certain phys */ | |
5968 | if (np->phy_oui == PHY_OUI_REALTEK2) | |
5969 | np->phy_oui = PHY_OUI_REALTEK; | |
5970 | /* Setup phy revision for Realtek */ | |
5971 | if (np->phy_oui == PHY_OUI_REALTEK && np->phy_model == PHY_MODEL_REALTEK_8211) | |
5972 | np->phy_rev = mii_rw(dev, phyaddr, MII_RESV1, MII_READ) & PHY_REV_MASK; | |
5973 | ||
1da177e4 LT |
5974 | break; |
5975 | } | |
7a33e45a | 5976 | if (i == 33) { |
3f88ce49 JG |
5977 | dev_printk(KERN_INFO, &pci_dev->dev, |
5978 | "open: Could not find a valid PHY.\n"); | |
eafa59f6 | 5979 | goto out_error; |
1da177e4 | 5980 | } |
f3b197ac | 5981 | |
7e680c22 AA |
5982 | if (!phyinitialized) { |
5983 | /* reset it */ | |
5984 | phy_init(dev); | |
f35723ec AA |
5985 | } else { |
5986 | /* see if it is a gigabit phy */ | |
5987 | u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
5988 | if (mii_status & PHY_GIGABIT) { | |
5989 | np->gigabit = PHY_GIGABIT; | |
5990 | } | |
7e680c22 | 5991 | } |
1da177e4 LT |
5992 | |
5993 | /* set default link speed settings */ | |
5994 | np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
5995 | np->duplex = 0; | |
5996 | np->autoneg = 1; | |
5997 | ||
5998 | err = register_netdev(dev); | |
5999 | if (err) { | |
3f88ce49 JG |
6000 | dev_printk(KERN_INFO, &pci_dev->dev, |
6001 | "unable to register netdev: %d\n", err); | |
eafa59f6 | 6002 | goto out_error; |
1da177e4 | 6003 | } |
3f88ce49 JG |
6004 | |
6005 | dev_printk(KERN_INFO, &pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, " | |
6006 | "addr %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", | |
6007 | dev->name, | |
6008 | np->phy_oui, | |
6009 | np->phyaddr, | |
6010 | dev->dev_addr[0], | |
6011 | dev->dev_addr[1], | |
6012 | dev->dev_addr[2], | |
6013 | dev->dev_addr[3], | |
6014 | dev->dev_addr[4], | |
6015 | dev->dev_addr[5]); | |
6016 | ||
6017 | dev_printk(KERN_INFO, &pci_dev->dev, "%s%s%s%s%s%s%s%s%s%sdesc-v%u\n", | |
6018 | dev->features & NETIF_F_HIGHDMA ? "highdma " : "", | |
edcfe5f7 | 6019 | dev->features & (NETIF_F_IP_CSUM | NETIF_F_SG) ? |
3f88ce49 JG |
6020 | "csum " : "", |
6021 | dev->features & (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX) ? | |
6022 | "vlan " : "", | |
6023 | id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "", | |
6024 | id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "", | |
6025 | id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "", | |
6026 | np->gigabit == PHY_GIGABIT ? "gbit " : "", | |
6027 | np->need_linktimer ? "lnktim " : "", | |
6028 | np->msi_flags & NV_MSI_CAPABLE ? "msi " : "", | |
6029 | np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "", | |
6030 | np->desc_ver); | |
1da177e4 LT |
6031 | |
6032 | return 0; | |
6033 | ||
eafa59f6 | 6034 | out_error: |
7e680c22 AA |
6035 | if (phystate_orig) |
6036 | writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl); | |
1da177e4 | 6037 | pci_set_drvdata(pci_dev, NULL); |
eafa59f6 AA |
6038 | out_freering: |
6039 | free_rings(dev); | |
1da177e4 LT |
6040 | out_unmap: |
6041 | iounmap(get_hwbase(dev)); | |
6042 | out_relreg: | |
6043 | pci_release_regions(pci_dev); | |
6044 | out_disable: | |
6045 | pci_disable_device(pci_dev); | |
6046 | out_free: | |
6047 | free_netdev(dev); | |
6048 | out: | |
6049 | return err; | |
6050 | } | |
6051 | ||
9f3f7910 AA |
6052 | static void nv_restore_phy(struct net_device *dev) |
6053 | { | |
6054 | struct fe_priv *np = netdev_priv(dev); | |
6055 | u16 phy_reserved, mii_control; | |
6056 | ||
6057 | if (np->phy_oui == PHY_OUI_REALTEK && | |
6058 | np->phy_model == PHY_MODEL_REALTEK_8201 && | |
6059 | phy_cross == NV_CROSSOVER_DETECTION_DISABLED) { | |
6060 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3); | |
6061 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ); | |
6062 | phy_reserved &= ~PHY_REALTEK_INIT_MSK1; | |
6063 | phy_reserved |= PHY_REALTEK_INIT8; | |
6064 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved); | |
6065 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1); | |
6066 | ||
6067 | /* restart auto negotiation */ | |
6068 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
6069 | mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); | |
6070 | mii_rw(dev, np->phyaddr, MII_BMCR, mii_control); | |
6071 | } | |
6072 | } | |
6073 | ||
f55c21fd | 6074 | static void nv_restore_mac_addr(struct pci_dev *pci_dev) |
1da177e4 LT |
6075 | { |
6076 | struct net_device *dev = pci_get_drvdata(pci_dev); | |
f1489653 AA |
6077 | struct fe_priv *np = netdev_priv(dev); |
6078 | u8 __iomem *base = get_hwbase(dev); | |
1da177e4 | 6079 | |
f1489653 AA |
6080 | /* special op: write back the misordered MAC address - otherwise |
6081 | * the next nv_probe would see a wrong address. | |
6082 | */ | |
6083 | writel(np->orig_mac[0], base + NvRegMacAddrA); | |
6084 | writel(np->orig_mac[1], base + NvRegMacAddrB); |