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 | */ | |
294a554e JP |
42 | |
43 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
44 | ||
3e1a3ce2 | 45 | #define FORCEDETH_VERSION "0.64" |
1da177e4 LT |
46 | #define DRV_NAME "forcedeth" |
47 | ||
48 | #include <linux/module.h> | |
49 | #include <linux/types.h> | |
50 | #include <linux/pci.h> | |
51 | #include <linux/interrupt.h> | |
52 | #include <linux/netdevice.h> | |
53 | #include <linux/etherdevice.h> | |
54 | #include <linux/delay.h> | |
d43c36dc | 55 | #include <linux/sched.h> |
1da177e4 LT |
56 | #include <linux/spinlock.h> |
57 | #include <linux/ethtool.h> | |
58 | #include <linux/timer.h> | |
59 | #include <linux/skbuff.h> | |
60 | #include <linux/mii.h> | |
61 | #include <linux/random.h> | |
62 | #include <linux/init.h> | |
22c6d143 | 63 | #include <linux/if_vlan.h> |
910638ae | 64 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 65 | #include <linux/slab.h> |
5504e139 | 66 | #include <linux/uaccess.h> |
70c71606 | 67 | #include <linux/prefetch.h> |
f5d827ae | 68 | #include <linux/u64_stats_sync.h> |
69 | #include <linux/io.h> | |
1da177e4 LT |
70 | |
71 | #include <asm/irq.h> | |
1da177e4 | 72 | |
bea3348e SH |
73 | #define TX_WORK_PER_LOOP 64 |
74 | #define RX_WORK_PER_LOOP 64 | |
1da177e4 LT |
75 | |
76 | /* | |
77 | * Hardware access: | |
78 | */ | |
79 | ||
3c2e1c11 AA |
80 | #define DEV_NEED_TIMERIRQ 0x0000001 /* set the timer irq flag in the irq mask */ |
81 | #define DEV_NEED_LINKTIMER 0x0000002 /* poll link settings. Relies on the timer irq */ | |
82 | #define DEV_HAS_LARGEDESC 0x0000004 /* device supports jumbo frames and needs packet format 2 */ | |
83 | #define DEV_HAS_HIGH_DMA 0x0000008 /* device supports 64bit dma */ | |
84 | #define DEV_HAS_CHECKSUM 0x0000010 /* device supports tx and rx checksum offloads */ | |
85 | #define DEV_HAS_VLAN 0x0000020 /* device supports vlan tagging and striping */ | |
86 | #define DEV_HAS_MSI 0x0000040 /* device supports MSI */ | |
87 | #define DEV_HAS_MSI_X 0x0000080 /* device supports MSI-X */ | |
88 | #define DEV_HAS_POWER_CNTRL 0x0000100 /* device supports power savings */ | |
89 | #define DEV_HAS_STATISTICS_V1 0x0000200 /* device supports hw statistics version 1 */ | |
7b5e078c MD |
90 | #define DEV_HAS_STATISTICS_V2 0x0000400 /* device supports hw statistics version 2 */ |
91 | #define DEV_HAS_STATISTICS_V3 0x0000800 /* device supports hw statistics version 3 */ | |
92 | #define DEV_HAS_STATISTICS_V12 0x0000600 /* device supports hw statistics version 1 and 2 */ | |
93 | #define DEV_HAS_STATISTICS_V123 0x0000e00 /* device supports hw statistics version 1, 2, and 3 */ | |
3c2e1c11 AA |
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 | |
78aea4fc | 187 | #define NVREG_SLOTTIME_1000_FULL 0x0003ff00 |
a433686c | 188 | #define NVREG_SLOTTIME_HALF 0x0000ff00 |
78aea4fc | 189 | #define NVREG_SLOTTIME_DEFAULT 0x00007f00 |
a433686c | 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 | 297 | NvRegMgmtUnitGetVersion = 0x204, |
78aea4fc | 298 | #define NVREG_MGMTUNITGETVERSION 0x01 |
cac1c52c AA |
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 { |
78aea4fc SJ |
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 | ||
25985edc | 444 | /* Miscellaneous hardware related defines: */ |
78aea4fc SJ |
445 | #define NV_PCI_REGSZ_VER1 0x270 |
446 | #define NV_PCI_REGSZ_VER2 0x2d4 | |
447 | #define NV_PCI_REGSZ_VER3 0x604 | |
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[] = { | |
674aee3b | 612 | { "tx_bytes" }, /* includes Ethernet FCS CRC */ |
52da3578 AA |
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" }, | |
674aee3b | 640 | { "rx_bytes" }, /* includes Ethernet FCS CRC */ |
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 { | |
674aee3b | 652 | u64 tx_bytes; /* should be ifconfig->tx_bytes + 4*tx_packets */ |
52da3578 AA |
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; | |
674aee3b | 673 | u64 rx_packets; /* should be ifconfig->rx_packets */ |
57fff698 AA |
674 | u64 rx_errors_total; |
675 | u64 tx_errors_total; | |
676 | ||
677 | /* version 2 stats */ | |
678 | u64 tx_deferral; | |
674aee3b | 679 | u64 tx_packets; /* should be ifconfig->tx_packets */ |
680 | u64 rx_bytes; /* should be ifconfig->rx_bytes + 4*rx_packets */ | |
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 | 717 | { NvRegWakeUpFlags, 0x07777 }, |
78aea4fc | 718 | { 0, 0 } |
9589c77a AA |
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. |
f5d827ae | 739 | * |
740 | * Hardware stats updates are protected by hwstats_lock: | |
741 | * - updated by nv_do_stats_poll (timer). This is meant to avoid | |
742 | * integer wraparound in the NIC stats registers, at low frequency | |
743 | * (0.1 Hz) | |
744 | * - updated by nv_get_ethtool_stats + nv_get_stats64 | |
745 | * | |
746 | * Software stats are accessed only through 64b synchronization points | |
747 | * and are not subject to other synchronization techniques (single | |
748 | * update thread on the TX or RX paths). | |
1da177e4 LT |
749 | */ |
750 | ||
751 | /* in dev: base, irq */ | |
752 | struct fe_priv { | |
753 | spinlock_t lock; | |
754 | ||
bea3348e SH |
755 | struct net_device *dev; |
756 | struct napi_struct napi; | |
757 | ||
f5d827ae | 758 | /* hardware stats are updated in syscall and timer */ |
759 | spinlock_t hwstats_lock; | |
52da3578 | 760 | struct nv_ethtool_stats estats; |
f5d827ae | 761 | |
1da177e4 LT |
762 | int in_shutdown; |
763 | u32 linkspeed; | |
764 | int duplex; | |
765 | int autoneg; | |
766 | int fixed_mode; | |
767 | int phyaddr; | |
768 | int wolenabled; | |
769 | unsigned int phy_oui; | |
edf7e5ec | 770 | unsigned int phy_model; |
9f3f7910 | 771 | unsigned int phy_rev; |
1da177e4 | 772 | u16 gigabit; |
9589c77a | 773 | int intr_test; |
c5cf9101 | 774 | int recover_error; |
4145ade2 | 775 | int quiet_count; |
1da177e4 LT |
776 | |
777 | /* General data: RO fields */ | |
778 | dma_addr_t ring_addr; | |
779 | struct pci_dev *pci_dev; | |
780 | u32 orig_mac[2]; | |
582806be | 781 | u32 events; |
1da177e4 LT |
782 | u32 irqmask; |
783 | u32 desc_ver; | |
8a4ae7f2 | 784 | u32 txrxctl_bits; |
ee407b02 | 785 | u32 vlanctl_bits; |
86a0f043 | 786 | u32 driver_data; |
9f3f7910 | 787 | u32 device_id; |
86a0f043 | 788 | u32 register_size; |
7e680c22 | 789 | u32 mac_in_use; |
cac1c52c AA |
790 | int mgmt_version; |
791 | int mgmt_sema; | |
1da177e4 LT |
792 | |
793 | void __iomem *base; | |
794 | ||
795 | /* rx specific fields. | |
796 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
797 | */ | |
761fcd9e AA |
798 | union ring_type get_rx, put_rx, first_rx, last_rx; |
799 | struct nv_skb_map *get_rx_ctx, *put_rx_ctx; | |
800 | struct nv_skb_map *first_rx_ctx, *last_rx_ctx; | |
801 | struct nv_skb_map *rx_skb; | |
802 | ||
f82a9352 | 803 | union ring_type rx_ring; |
1da177e4 | 804 | unsigned int rx_buf_sz; |
d81c0983 | 805 | unsigned int pkt_limit; |
1da177e4 LT |
806 | struct timer_list oom_kick; |
807 | struct timer_list nic_poll; | |
52da3578 | 808 | struct timer_list stats_poll; |
d33a73c8 | 809 | u32 nic_poll_irq; |
eafa59f6 | 810 | int rx_ring_size; |
1da177e4 | 811 | |
f5d827ae | 812 | /* RX software stats */ |
813 | struct u64_stats_sync swstats_rx_syncp; | |
814 | u64 stat_rx_packets; | |
815 | u64 stat_rx_bytes; /* not always available in HW */ | |
816 | u64 stat_rx_missed_errors; | |
0a1f222d | 817 | u64 stat_rx_dropped; |
f5d827ae | 818 | |
1da177e4 LT |
819 | /* media detection workaround. |
820 | * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); | |
821 | */ | |
822 | int need_linktimer; | |
823 | unsigned long link_timeout; | |
824 | /* | |
825 | * tx specific fields. | |
826 | */ | |
761fcd9e AA |
827 | union ring_type get_tx, put_tx, first_tx, last_tx; |
828 | struct nv_skb_map *get_tx_ctx, *put_tx_ctx; | |
829 | struct nv_skb_map *first_tx_ctx, *last_tx_ctx; | |
830 | struct nv_skb_map *tx_skb; | |
831 | ||
f82a9352 | 832 | union ring_type tx_ring; |
1da177e4 | 833 | u32 tx_flags; |
eafa59f6 | 834 | int tx_ring_size; |
3b446c3e AA |
835 | int tx_limit; |
836 | u32 tx_pkts_in_progress; | |
837 | struct nv_skb_map *tx_change_owner; | |
838 | struct nv_skb_map *tx_end_flip; | |
aaa37d2d | 839 | int tx_stop; |
ee407b02 | 840 | |
f5d827ae | 841 | /* TX software stats */ |
842 | struct u64_stats_sync swstats_tx_syncp; | |
843 | u64 stat_tx_packets; /* not always available in HW */ | |
844 | u64 stat_tx_bytes; | |
845 | u64 stat_tx_dropped; | |
846 | ||
d33a73c8 AA |
847 | /* msi/msi-x fields */ |
848 | u32 msi_flags; | |
849 | struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS]; | |
eb91f61b AA |
850 | |
851 | /* flow control */ | |
852 | u32 pause_flags; | |
1a1ca861 TD |
853 | |
854 | /* power saved state */ | |
855 | u32 saved_config_space[NV_PCI_REGSZ_MAX/4]; | |
ddb213f0 YL |
856 | |
857 | /* for different msi-x irq type */ | |
858 | char name_rx[IFNAMSIZ + 3]; /* -rx */ | |
859 | char name_tx[IFNAMSIZ + 3]; /* -tx */ | |
860 | char name_other[IFNAMSIZ + 6]; /* -other */ | |
1da177e4 LT |
861 | }; |
862 | ||
863 | /* | |
864 | * Maximum number of loops until we assume that a bit in the irq mask | |
865 | * is stuck. Overridable with module param. | |
866 | */ | |
4145ade2 | 867 | static int max_interrupt_work = 4; |
1da177e4 | 868 | |
a971c324 AA |
869 | /* |
870 | * Optimization can be either throuput mode or cpu mode | |
f3b197ac | 871 | * |
a971c324 AA |
872 | * Throughput Mode: Every tx and rx packet will generate an interrupt. |
873 | * CPU Mode: Interrupts are controlled by a timer. | |
874 | */ | |
69fe3fd7 AA |
875 | enum { |
876 | NV_OPTIMIZATION_MODE_THROUGHPUT, | |
9e184767 AA |
877 | NV_OPTIMIZATION_MODE_CPU, |
878 | NV_OPTIMIZATION_MODE_DYNAMIC | |
69fe3fd7 | 879 | }; |
9e184767 | 880 | static int optimization_mode = NV_OPTIMIZATION_MODE_DYNAMIC; |
a971c324 AA |
881 | |
882 | /* | |
883 | * Poll interval for timer irq | |
884 | * | |
885 | * This interval determines how frequent an interrupt is generated. | |
886 | * The is value is determined by [(time_in_micro_secs * 100) / (2^10)] | |
887 | * Min = 0, and Max = 65535 | |
888 | */ | |
889 | static int poll_interval = -1; | |
890 | ||
d33a73c8 | 891 | /* |
69fe3fd7 | 892 | * MSI interrupts |
d33a73c8 | 893 | */ |
69fe3fd7 AA |
894 | enum { |
895 | NV_MSI_INT_DISABLED, | |
896 | NV_MSI_INT_ENABLED | |
897 | }; | |
898 | static int msi = NV_MSI_INT_ENABLED; | |
d33a73c8 AA |
899 | |
900 | /* | |
69fe3fd7 | 901 | * MSIX interrupts |
d33a73c8 | 902 | */ |
69fe3fd7 AA |
903 | enum { |
904 | NV_MSIX_INT_DISABLED, | |
905 | NV_MSIX_INT_ENABLED | |
906 | }; | |
39482791 | 907 | static int msix = NV_MSIX_INT_ENABLED; |
69fe3fd7 AA |
908 | |
909 | /* | |
910 | * DMA 64bit | |
911 | */ | |
912 | enum { | |
913 | NV_DMA_64BIT_DISABLED, | |
914 | NV_DMA_64BIT_ENABLED | |
915 | }; | |
916 | static int dma_64bit = NV_DMA_64BIT_ENABLED; | |
d33a73c8 | 917 | |
1ec4f2d3 SN |
918 | /* |
919 | * Debug output control for tx_timeout | |
920 | */ | |
921 | static bool debug_tx_timeout = false; | |
922 | ||
9f3f7910 AA |
923 | /* |
924 | * Crossover Detection | |
925 | * Realtek 8201 phy + some OEM boards do not work properly. | |
926 | */ | |
927 | enum { | |
928 | NV_CROSSOVER_DETECTION_DISABLED, | |
929 | NV_CROSSOVER_DETECTION_ENABLED | |
930 | }; | |
931 | static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED; | |
932 | ||
5a9a8e32 ES |
933 | /* |
934 | * Power down phy when interface is down (persists through reboot; | |
935 | * older Linux and other OSes may not power it up again) | |
936 | */ | |
78aea4fc | 937 | static int phy_power_down; |
5a9a8e32 | 938 | |
1da177e4 LT |
939 | static inline struct fe_priv *get_nvpriv(struct net_device *dev) |
940 | { | |
941 | return netdev_priv(dev); | |
942 | } | |
943 | ||
944 | static inline u8 __iomem *get_hwbase(struct net_device *dev) | |
945 | { | |
ac9c1897 | 946 | return ((struct fe_priv *)netdev_priv(dev))->base; |
1da177e4 LT |
947 | } |
948 | ||
949 | static inline void pci_push(u8 __iomem *base) | |
950 | { | |
951 | /* force out pending posted writes */ | |
952 | readl(base); | |
953 | } | |
954 | ||
955 | static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v) | |
956 | { | |
f82a9352 | 957 | return le32_to_cpu(prd->flaglen) |
1da177e4 LT |
958 | & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2); |
959 | } | |
960 | ||
ee73362c MS |
961 | static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v) |
962 | { | |
f82a9352 | 963 | return le32_to_cpu(prd->flaglen) & LEN_MASK_V2; |
ee73362c MS |
964 | } |
965 | ||
36b30ea9 JG |
966 | static bool nv_optimized(struct fe_priv *np) |
967 | { | |
968 | if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) | |
969 | return false; | |
970 | return true; | |
971 | } | |
972 | ||
1da177e4 | 973 | static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target, |
344d0dce | 974 | int delay, int delaymax) |
1da177e4 LT |
975 | { |
976 | u8 __iomem *base = get_hwbase(dev); | |
977 | ||
978 | pci_push(base); | |
979 | do { | |
980 | udelay(delay); | |
981 | delaymax -= delay; | |
344d0dce | 982 | if (delaymax < 0) |
1da177e4 | 983 | return 1; |
1da177e4 LT |
984 | } while ((readl(base + offset) & mask) != target); |
985 | return 0; | |
986 | } | |
987 | ||
0832b25a AA |
988 | #define NV_SETUP_RX_RING 0x01 |
989 | #define NV_SETUP_TX_RING 0x02 | |
990 | ||
5bb7ea26 AV |
991 | static inline u32 dma_low(dma_addr_t addr) |
992 | { | |
993 | return addr; | |
994 | } | |
995 | ||
996 | static inline u32 dma_high(dma_addr_t addr) | |
997 | { | |
998 | return addr>>31>>1; /* 0 if 32bit, shift down by 32 if 64bit */ | |
999 | } | |
1000 | ||
0832b25a AA |
1001 | static void setup_hw_rings(struct net_device *dev, int rxtx_flags) |
1002 | { | |
1003 | struct fe_priv *np = get_nvpriv(dev); | |
1004 | u8 __iomem *base = get_hwbase(dev); | |
1005 | ||
36b30ea9 | 1006 | if (!nv_optimized(np)) { |
78aea4fc | 1007 | if (rxtx_flags & NV_SETUP_RX_RING) |
5bb7ea26 | 1008 | writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr); |
78aea4fc | 1009 | if (rxtx_flags & NV_SETUP_TX_RING) |
5bb7ea26 | 1010 | writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr); |
0832b25a AA |
1011 | } else { |
1012 | if (rxtx_flags & NV_SETUP_RX_RING) { | |
5bb7ea26 AV |
1013 | writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr); |
1014 | writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh); | |
0832b25a AA |
1015 | } |
1016 | if (rxtx_flags & NV_SETUP_TX_RING) { | |
5bb7ea26 AV |
1017 | writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr); |
1018 | writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh); | |
0832b25a AA |
1019 | } |
1020 | } | |
1021 | } | |
1022 | ||
eafa59f6 AA |
1023 | static void free_rings(struct net_device *dev) |
1024 | { | |
1025 | struct fe_priv *np = get_nvpriv(dev); | |
1026 | ||
36b30ea9 | 1027 | if (!nv_optimized(np)) { |
f82a9352 | 1028 | if (np->rx_ring.orig) |
eafa59f6 AA |
1029 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size), |
1030 | np->rx_ring.orig, np->ring_addr); | |
1031 | } else { | |
1032 | if (np->rx_ring.ex) | |
1033 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), | |
1034 | np->rx_ring.ex, np->ring_addr); | |
1035 | } | |
9b03b06b SJ |
1036 | kfree(np->rx_skb); |
1037 | kfree(np->tx_skb); | |
eafa59f6 AA |
1038 | } |
1039 | ||
84b3932b AA |
1040 | static int using_multi_irqs(struct net_device *dev) |
1041 | { | |
1042 | struct fe_priv *np = get_nvpriv(dev); | |
1043 | ||
1044 | if (!(np->msi_flags & NV_MSI_X_ENABLED) || | |
1045 | ((np->msi_flags & NV_MSI_X_ENABLED) && | |
1046 | ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1))) | |
1047 | return 0; | |
1048 | else | |
1049 | return 1; | |
1050 | } | |
1051 | ||
88d7d8b0 AA |
1052 | static void nv_txrx_gate(struct net_device *dev, bool gate) |
1053 | { | |
1054 | struct fe_priv *np = get_nvpriv(dev); | |
1055 | u8 __iomem *base = get_hwbase(dev); | |
1056 | u32 powerstate; | |
1057 | ||
1058 | if (!np->mac_in_use && | |
1059 | (np->driver_data & DEV_HAS_POWER_CNTRL)) { | |
1060 | powerstate = readl(base + NvRegPowerState2); | |
1061 | if (gate) | |
1062 | powerstate |= NVREG_POWERSTATE2_GATE_CLOCKS; | |
1063 | else | |
1064 | powerstate &= ~NVREG_POWERSTATE2_GATE_CLOCKS; | |
1065 | writel(powerstate, base + NvRegPowerState2); | |
1066 | } | |
1067 | } | |
1068 | ||
84b3932b AA |
1069 | static void nv_enable_irq(struct net_device *dev) |
1070 | { | |
1071 | struct fe_priv *np = get_nvpriv(dev); | |
1072 | ||
1073 | if (!using_multi_irqs(dev)) { | |
1074 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1075 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1076 | else | |
a7475906 | 1077 | enable_irq(np->pci_dev->irq); |
84b3932b AA |
1078 | } else { |
1079 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1080 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); | |
1081 | enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | static void nv_disable_irq(struct net_device *dev) | |
1086 | { | |
1087 | struct fe_priv *np = get_nvpriv(dev); | |
1088 | ||
1089 | if (!using_multi_irqs(dev)) { | |
1090 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
1091 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); | |
1092 | else | |
a7475906 | 1093 | disable_irq(np->pci_dev->irq); |
84b3932b AA |
1094 | } else { |
1095 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); | |
1096 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); | |
1097 | disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | /* In MSIX mode, a write to irqmask behaves as XOR */ | |
1102 | static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask) | |
1103 | { | |
1104 | u8 __iomem *base = get_hwbase(dev); | |
1105 | ||
1106 | writel(mask, base + NvRegIrqMask); | |
1107 | } | |
1108 | ||
1109 | static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask) | |
1110 | { | |
1111 | struct fe_priv *np = get_nvpriv(dev); | |
1112 | u8 __iomem *base = get_hwbase(dev); | |
1113 | ||
1114 | if (np->msi_flags & NV_MSI_X_ENABLED) { | |
1115 | writel(mask, base + NvRegIrqMask); | |
1116 | } else { | |
1117 | if (np->msi_flags & NV_MSI_ENABLED) | |
1118 | writel(0, base + NvRegMSIIrqMask); | |
1119 | writel(0, base + NvRegIrqMask); | |
1120 | } | |
1121 | } | |
1122 | ||
08d93575 AA |
1123 | static void nv_napi_enable(struct net_device *dev) |
1124 | { | |
08d93575 AA |
1125 | struct fe_priv *np = get_nvpriv(dev); |
1126 | ||
1127 | napi_enable(&np->napi); | |
08d93575 AA |
1128 | } |
1129 | ||
1130 | static void nv_napi_disable(struct net_device *dev) | |
1131 | { | |
08d93575 AA |
1132 | struct fe_priv *np = get_nvpriv(dev); |
1133 | ||
1134 | napi_disable(&np->napi); | |
08d93575 AA |
1135 | } |
1136 | ||
1da177e4 LT |
1137 | #define MII_READ (-1) |
1138 | /* mii_rw: read/write a register on the PHY. | |
1139 | * | |
1140 | * Caller must guarantee serialization | |
1141 | */ | |
1142 | static int mii_rw(struct net_device *dev, int addr, int miireg, int value) | |
1143 | { | |
1144 | u8 __iomem *base = get_hwbase(dev); | |
1145 | u32 reg; | |
1146 | int retval; | |
1147 | ||
eb798428 | 1148 | writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus); |
1da177e4 LT |
1149 | |
1150 | reg = readl(base + NvRegMIIControl); | |
1151 | if (reg & NVREG_MIICTL_INUSE) { | |
1152 | writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl); | |
1153 | udelay(NV_MIIBUSY_DELAY); | |
1154 | } | |
1155 | ||
1156 | reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg; | |
1157 | if (value != MII_READ) { | |
1158 | writel(value, base + NvRegMIIData); | |
1159 | reg |= NVREG_MIICTL_WRITE; | |
1160 | } | |
1161 | writel(reg, base + NvRegMIIControl); | |
1162 | ||
1163 | if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0, | |
344d0dce | 1164 | NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX)) { |
1da177e4 LT |
1165 | retval = -1; |
1166 | } else if (value != MII_READ) { | |
1167 | /* it was a write operation - fewer failures are detectable */ | |
1da177e4 LT |
1168 | retval = 0; |
1169 | } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) { | |
1da177e4 LT |
1170 | retval = -1; |
1171 | } else { | |
1172 | retval = readl(base + NvRegMIIData); | |
1da177e4 LT |
1173 | } |
1174 | ||
1175 | return retval; | |
1176 | } | |
1177 | ||
edf7e5ec | 1178 | static int phy_reset(struct net_device *dev, u32 bmcr_setup) |
1da177e4 | 1179 | { |
ac9c1897 | 1180 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
1181 | u32 miicontrol; |
1182 | unsigned int tries = 0; | |
1183 | ||
edf7e5ec | 1184 | miicontrol = BMCR_RESET | bmcr_setup; |
78aea4fc | 1185 | if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) |
1da177e4 | 1186 | return -1; |
1da177e4 LT |
1187 | |
1188 | /* wait for 500ms */ | |
1189 | msleep(500); | |
1190 | ||
1191 | /* must wait till reset is deasserted */ | |
1192 | while (miicontrol & BMCR_RESET) { | |
de855b99 | 1193 | usleep_range(10000, 20000); |
1da177e4 LT |
1194 | miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
1195 | /* FIXME: 100 tries seem excessive */ | |
1196 | if (tries++ > 100) | |
1197 | return -1; | |
1198 | } | |
1199 | return 0; | |
1200 | } | |
1201 | ||
c41d41e1 JP |
1202 | static int init_realtek_8211b(struct net_device *dev, struct fe_priv *np) |
1203 | { | |
1204 | static const struct { | |
1205 | int reg; | |
1206 | int init; | |
1207 | } ri[] = { | |
1208 | { PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 }, | |
1209 | { PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2 }, | |
1210 | { PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3 }, | |
1211 | { PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4 }, | |
1212 | { PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5 }, | |
1213 | { PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6 }, | |
1214 | { PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 }, | |
1215 | }; | |
1216 | int i; | |
1217 | ||
1218 | for (i = 0; i < ARRAY_SIZE(ri); i++) { | |
cd66328b JP |
1219 | if (mii_rw(dev, np->phyaddr, ri[i].reg, ri[i].init)) |
1220 | return PHY_ERROR; | |
1221 | } | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static int init_realtek_8211c(struct net_device *dev, struct fe_priv *np) | |
1227 | { | |
1228 | u32 reg; | |
1229 | u8 __iomem *base = get_hwbase(dev); | |
1230 | u32 powerstate = readl(base + NvRegPowerState2); | |
1231 | ||
1232 | /* need to perform hw phy reset */ | |
1233 | powerstate |= NVREG_POWERSTATE2_PHY_RESET; | |
1234 | writel(powerstate, base + NvRegPowerState2); | |
1235 | msleep(25); | |
1236 | ||
1237 | powerstate &= ~NVREG_POWERSTATE2_PHY_RESET; | |
1238 | writel(powerstate, base + NvRegPowerState2); | |
1239 | msleep(25); | |
1240 | ||
1241 | reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ); | |
1242 | reg |= PHY_REALTEK_INIT9; | |
1243 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, reg)) | |
1244 | return PHY_ERROR; | |
1245 | if (mii_rw(dev, np->phyaddr, | |
1246 | PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT10)) | |
1247 | return PHY_ERROR; | |
1248 | reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, MII_READ); | |
1249 | if (!(reg & PHY_REALTEK_INIT11)) { | |
1250 | reg |= PHY_REALTEK_INIT11; | |
1251 | if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, reg)) | |
1252 | return PHY_ERROR; | |
1253 | } | |
1254 | if (mii_rw(dev, np->phyaddr, | |
1255 | PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) | |
1256 | return PHY_ERROR; | |
1257 | ||
1258 | return 0; | |
1259 | } | |
1260 | ||
1261 | static int init_realtek_8201(struct net_device *dev, struct fe_priv *np) | |
1262 | { | |
1263 | u32 phy_reserved; | |
1264 | ||
1265 | if (np->driver_data & DEV_NEED_PHY_INIT_FIX) { | |
1266 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1267 | PHY_REALTEK_INIT_REG6, MII_READ); | |
1268 | phy_reserved |= PHY_REALTEK_INIT7; | |
1269 | if (mii_rw(dev, np->phyaddr, | |
1270 | PHY_REALTEK_INIT_REG6, phy_reserved)) | |
1271 | return PHY_ERROR; | |
1272 | } | |
1273 | ||
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | static int init_realtek_8201_cross(struct net_device *dev, struct fe_priv *np) | |
1278 | { | |
1279 | u32 phy_reserved; | |
1280 | ||
1281 | if (phy_cross == NV_CROSSOVER_DETECTION_DISABLED) { | |
1282 | if (mii_rw(dev, np->phyaddr, | |
1283 | PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) | |
1284 | return PHY_ERROR; | |
1285 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1286 | PHY_REALTEK_INIT_REG2, MII_READ); | |
1287 | phy_reserved &= ~PHY_REALTEK_INIT_MSK1; | |
1288 | phy_reserved |= PHY_REALTEK_INIT3; | |
1289 | if (mii_rw(dev, np->phyaddr, | |
1290 | PHY_REALTEK_INIT_REG2, phy_reserved)) | |
1291 | return PHY_ERROR; | |
1292 | if (mii_rw(dev, np->phyaddr, | |
1293 | PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) | |
c41d41e1 | 1294 | return PHY_ERROR; |
c41d41e1 JP |
1295 | } |
1296 | ||
1297 | return 0; | |
1298 | } | |
1299 | ||
cd66328b JP |
1300 | static int init_cicada(struct net_device *dev, struct fe_priv *np, |
1301 | u32 phyinterface) | |
1302 | { | |
1303 | u32 phy_reserved; | |
1304 | ||
1305 | if (phyinterface & PHY_RGMII) { | |
1306 | phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ); | |
1307 | phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2); | |
1308 | phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4); | |
1309 | if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) | |
1310 | return PHY_ERROR; | |
1311 | phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ); | |
1312 | phy_reserved |= PHY_CICADA_INIT5; | |
1313 | if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) | |
1314 | return PHY_ERROR; | |
1315 | } | |
1316 | phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ); | |
1317 | phy_reserved |= PHY_CICADA_INIT6; | |
1318 | if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) | |
1319 | return PHY_ERROR; | |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | static int init_vitesse(struct net_device *dev, struct fe_priv *np) | |
1325 | { | |
1326 | u32 phy_reserved; | |
1327 | ||
1328 | if (mii_rw(dev, np->phyaddr, | |
1329 | PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1)) | |
1330 | return PHY_ERROR; | |
1331 | if (mii_rw(dev, np->phyaddr, | |
1332 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2)) | |
1333 | return PHY_ERROR; | |
1334 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1335 | PHY_VITESSE_INIT_REG4, MII_READ); | |
1336 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) | |
1337 | return PHY_ERROR; | |
1338 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1339 | PHY_VITESSE_INIT_REG3, MII_READ); | |
1340 | phy_reserved &= ~PHY_VITESSE_INIT_MSK1; | |
1341 | phy_reserved |= PHY_VITESSE_INIT3; | |
1342 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) | |
1343 | return PHY_ERROR; | |
1344 | if (mii_rw(dev, np->phyaddr, | |
1345 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4)) | |
1346 | return PHY_ERROR; | |
1347 | if (mii_rw(dev, np->phyaddr, | |
1348 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5)) | |
1349 | return PHY_ERROR; | |
1350 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1351 | PHY_VITESSE_INIT_REG4, MII_READ); | |
1352 | phy_reserved &= ~PHY_VITESSE_INIT_MSK1; | |
1353 | phy_reserved |= PHY_VITESSE_INIT3; | |
1354 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) | |
1355 | return PHY_ERROR; | |
1356 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1357 | PHY_VITESSE_INIT_REG3, MII_READ); | |
1358 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) | |
1359 | return PHY_ERROR; | |
1360 | if (mii_rw(dev, np->phyaddr, | |
1361 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6)) | |
1362 | return PHY_ERROR; | |
1363 | if (mii_rw(dev, np->phyaddr, | |
1364 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7)) | |
1365 | return PHY_ERROR; | |
1366 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1367 | PHY_VITESSE_INIT_REG4, MII_READ); | |
1368 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) | |
1369 | return PHY_ERROR; | |
1370 | phy_reserved = mii_rw(dev, np->phyaddr, | |
1371 | PHY_VITESSE_INIT_REG3, MII_READ); | |
1372 | phy_reserved &= ~PHY_VITESSE_INIT_MSK2; | |
1373 | phy_reserved |= PHY_VITESSE_INIT8; | |
1374 | if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) | |
1375 | return PHY_ERROR; | |
1376 | if (mii_rw(dev, np->phyaddr, | |
1377 | PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9)) | |
1378 | return PHY_ERROR; | |
1379 | if (mii_rw(dev, np->phyaddr, | |
1380 | PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10)) | |
1381 | return PHY_ERROR; | |
1382 | ||
1383 | return 0; | |
1384 | } | |
1385 | ||
1da177e4 LT |
1386 | static int phy_init(struct net_device *dev) |
1387 | { | |
1388 | struct fe_priv *np = get_nvpriv(dev); | |
1389 | u8 __iomem *base = get_hwbase(dev); | |
cd66328b JP |
1390 | u32 phyinterface; |
1391 | u32 mii_status, mii_control, mii_control_1000, reg; | |
1da177e4 | 1392 | |
edf7e5ec AA |
1393 | /* phy errata for E3016 phy */ |
1394 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { | |
1395 | reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ); | |
1396 | reg &= ~PHY_MARVELL_E3016_INITMASK; | |
1397 | if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) { | |
1d397f36 JP |
1398 | netdev_info(dev, "%s: phy write to errata reg failed\n", |
1399 | pci_name(np->pci_dev)); | |
edf7e5ec AA |
1400 | return PHY_ERROR; |
1401 | } | |
1402 | } | |
c5e3ae88 | 1403 | if (np->phy_oui == PHY_OUI_REALTEK) { |
9f3f7910 AA |
1404 | if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1405 | np->phy_rev == PHY_REV_REALTEK_8211B) { | |
cd66328b | 1406 | if (init_realtek_8211b(dev, np)) { |
1d397f36 JP |
1407 | netdev_info(dev, "%s: phy init failed\n", |
1408 | pci_name(np->pci_dev)); | |
22ae03a1 AA |
1409 | return PHY_ERROR; |
1410 | } | |
cd66328b JP |
1411 | } else if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1412 | np->phy_rev == PHY_REV_REALTEK_8211C) { | |
1413 | if (init_realtek_8211c(dev, np)) { | |
1d397f36 JP |
1414 | netdev_info(dev, "%s: phy init failed\n", |
1415 | pci_name(np->pci_dev)); | |
22ae03a1 AA |
1416 | return PHY_ERROR; |
1417 | } | |
cd66328b JP |
1418 | } else if (np->phy_model == PHY_MODEL_REALTEK_8201) { |
1419 | if (init_realtek_8201(dev, np)) { | |
1d397f36 JP |
1420 | netdev_info(dev, "%s: phy init failed\n", |
1421 | pci_name(np->pci_dev)); | |
22ae03a1 AA |
1422 | return PHY_ERROR; |
1423 | } | |
1424 | } | |
c5e3ae88 | 1425 | } |
edf7e5ec | 1426 | |
1da177e4 LT |
1427 | /* set advertise register */ |
1428 | reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
cd66328b JP |
1429 | reg |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
1430 | ADVERTISE_100HALF | ADVERTISE_100FULL | | |
1431 | ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP); | |
1da177e4 | 1432 | if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) { |
1d397f36 JP |
1433 | netdev_info(dev, "%s: phy write to advertise failed\n", |
1434 | pci_name(np->pci_dev)); | |
1da177e4 LT |
1435 | return PHY_ERROR; |
1436 | } | |
1437 | ||
1438 | /* get phy interface type */ | |
1439 | phyinterface = readl(base + NvRegPhyInterface); | |
1440 | ||
1441 | /* see if gigabit phy */ | |
1442 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
1443 | if (mii_status & PHY_GIGABIT) { | |
1444 | np->gigabit = PHY_GIGABIT; | |
cd66328b JP |
1445 | mii_control_1000 = mii_rw(dev, np->phyaddr, |
1446 | MII_CTRL1000, MII_READ); | |
1da177e4 LT |
1447 | mii_control_1000 &= ~ADVERTISE_1000HALF; |
1448 | if (phyinterface & PHY_RGMII) | |
1449 | mii_control_1000 |= ADVERTISE_1000FULL; | |
1450 | else | |
1451 | mii_control_1000 &= ~ADVERTISE_1000FULL; | |
1452 | ||
eb91f61b | 1453 | if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) { |
1d397f36 JP |
1454 | netdev_info(dev, "%s: phy init failed\n", |
1455 | pci_name(np->pci_dev)); | |
1da177e4 LT |
1456 | return PHY_ERROR; |
1457 | } | |
78aea4fc | 1458 | } else |
1da177e4 LT |
1459 | np->gigabit = 0; |
1460 | ||
edf7e5ec AA |
1461 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
1462 | mii_control |= BMCR_ANENABLE; | |
1463 | ||
22ae03a1 AA |
1464 | if (np->phy_oui == PHY_OUI_REALTEK && |
1465 | np->phy_model == PHY_MODEL_REALTEK_8211 && | |
1466 | np->phy_rev == PHY_REV_REALTEK_8211C) { | |
1467 | /* start autoneg since we already performed hw reset above */ | |
1468 | mii_control |= BMCR_ANRESTART; | |
1469 | if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) { | |
1d397f36 JP |
1470 | netdev_info(dev, "%s: phy init failed\n", |
1471 | pci_name(np->pci_dev)); | |
22ae03a1 AA |
1472 | return PHY_ERROR; |
1473 | } | |
1474 | } else { | |
1475 | /* reset the phy | |
1476 | * (certain phys need bmcr to be setup with reset) | |
1477 | */ | |
1478 | if (phy_reset(dev, mii_control)) { | |
1d397f36 JP |
1479 | netdev_info(dev, "%s: phy reset failed\n", |
1480 | pci_name(np->pci_dev)); | |
22ae03a1 AA |
1481 | return PHY_ERROR; |
1482 | } | |
1da177e4 LT |
1483 | } |
1484 | ||
1485 | /* phy vendor specific configuration */ | |
cd66328b JP |
1486 | if ((np->phy_oui == PHY_OUI_CICADA)) { |
1487 | if (init_cicada(dev, np, phyinterface)) { | |
1d397f36 JP |
1488 | netdev_info(dev, "%s: phy init failed\n", |
1489 | pci_name(np->pci_dev)); | |
d215d8a2 AA |
1490 | return PHY_ERROR; |
1491 | } | |
cd66328b JP |
1492 | } else if (np->phy_oui == PHY_OUI_VITESSE) { |
1493 | if (init_vitesse(dev, np)) { | |
1d397f36 JP |
1494 | netdev_info(dev, "%s: phy init failed\n", |
1495 | pci_name(np->pci_dev)); | |
d215d8a2 AA |
1496 | return PHY_ERROR; |
1497 | } | |
cd66328b | 1498 | } else if (np->phy_oui == PHY_OUI_REALTEK) { |
9f3f7910 AA |
1499 | if (np->phy_model == PHY_MODEL_REALTEK_8211 && |
1500 | np->phy_rev == PHY_REV_REALTEK_8211B) { | |
1501 | /* reset could have cleared these out, set them back */ | |
cd66328b JP |
1502 | if (init_realtek_8211b(dev, np)) { |
1503 | netdev_info(dev, "%s: phy init failed\n", | |
1504 | pci_name(np->pci_dev)); | |
9f3f7910 | 1505 | return PHY_ERROR; |
9f3f7910 | 1506 | } |
cd66328b JP |
1507 | } else if (np->phy_model == PHY_MODEL_REALTEK_8201) { |
1508 | if (init_realtek_8201(dev, np) || | |
1509 | init_realtek_8201_cross(dev, np)) { | |
1510 | netdev_info(dev, "%s: phy init failed\n", | |
1511 | pci_name(np->pci_dev)); | |
1512 | return PHY_ERROR; | |
9f3f7910 | 1513 | } |
c5e3ae88 AA |
1514 | } |
1515 | } | |
1516 | ||
25985edc | 1517 | /* some phys clear out pause advertisement on reset, set it back */ |
eb91f61b | 1518 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg); |
1da177e4 | 1519 | |
cb52deba | 1520 | /* restart auto negotiation, power down phy */ |
1da177e4 | 1521 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
5a9a8e32 | 1522 | mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); |
78aea4fc | 1523 | if (phy_power_down) |
5a9a8e32 | 1524 | mii_control |= BMCR_PDOWN; |
78aea4fc | 1525 | if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) |
1da177e4 | 1526 | return PHY_ERROR; |
1da177e4 LT |
1527 | |
1528 | return 0; | |
1529 | } | |
1530 | ||
1531 | static void nv_start_rx(struct net_device *dev) | |
1532 | { | |
ac9c1897 | 1533 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1534 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1535 | u32 rx_ctrl = readl(base + NvRegReceiverControl); |
1da177e4 | 1536 | |
1da177e4 | 1537 | /* Already running? Stop it. */ |
f35723ec AA |
1538 | if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) { |
1539 | rx_ctrl &= ~NVREG_RCVCTL_START; | |
1540 | writel(rx_ctrl, base + NvRegReceiverControl); | |
1da177e4 LT |
1541 | pci_push(base); |
1542 | } | |
1543 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
1544 | pci_push(base); | |
78aea4fc SJ |
1545 | rx_ctrl |= NVREG_RCVCTL_START; |
1546 | if (np->mac_in_use) | |
f35723ec AA |
1547 | rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN; |
1548 | writel(rx_ctrl, base + NvRegReceiverControl); | |
1da177e4 LT |
1549 | pci_push(base); |
1550 | } | |
1551 | ||
1552 | static void nv_stop_rx(struct net_device *dev) | |
1553 | { | |
f35723ec | 1554 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1555 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1556 | u32 rx_ctrl = readl(base + NvRegReceiverControl); |
1da177e4 | 1557 | |
f35723ec AA |
1558 | if (!np->mac_in_use) |
1559 | rx_ctrl &= ~NVREG_RCVCTL_START; | |
1560 | else | |
1561 | rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN; | |
1562 | writel(rx_ctrl, base + NvRegReceiverControl); | |
344d0dce JP |
1563 | if (reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0, |
1564 | NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX)) | |
1d397f36 JP |
1565 | netdev_info(dev, "%s: ReceiverStatus remained busy\n", |
1566 | __func__); | |
1da177e4 LT |
1567 | |
1568 | udelay(NV_RXSTOP_DELAY2); | |
f35723ec AA |
1569 | if (!np->mac_in_use) |
1570 | writel(0, base + NvRegLinkSpeed); | |
1da177e4 LT |
1571 | } |
1572 | ||
1573 | static void nv_start_tx(struct net_device *dev) | |
1574 | { | |
f35723ec | 1575 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1576 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1577 | u32 tx_ctrl = readl(base + NvRegTransmitterControl); |
1da177e4 | 1578 | |
f35723ec AA |
1579 | tx_ctrl |= NVREG_XMITCTL_START; |
1580 | if (np->mac_in_use) | |
1581 | tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN; | |
1582 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
1da177e4 LT |
1583 | pci_push(base); |
1584 | } | |
1585 | ||
1586 | static void nv_stop_tx(struct net_device *dev) | |
1587 | { | |
f35723ec | 1588 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1589 | u8 __iomem *base = get_hwbase(dev); |
f35723ec | 1590 | u32 tx_ctrl = readl(base + NvRegTransmitterControl); |
1da177e4 | 1591 | |
f35723ec AA |
1592 | if (!np->mac_in_use) |
1593 | tx_ctrl &= ~NVREG_XMITCTL_START; | |
1594 | else | |
1595 | tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN; | |
1596 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
344d0dce JP |
1597 | if (reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0, |
1598 | NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX)) | |
1d397f36 JP |
1599 | netdev_info(dev, "%s: TransmitterStatus remained busy\n", |
1600 | __func__); | |
1da177e4 LT |
1601 | |
1602 | udelay(NV_TXSTOP_DELAY2); | |
f35723ec AA |
1603 | if (!np->mac_in_use) |
1604 | writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, | |
1605 | base + NvRegTransmitPoll); | |
1da177e4 LT |
1606 | } |
1607 | ||
36b30ea9 JG |
1608 | static void nv_start_rxtx(struct net_device *dev) |
1609 | { | |
1610 | nv_start_rx(dev); | |
1611 | nv_start_tx(dev); | |
1612 | } | |
1613 | ||
1614 | static void nv_stop_rxtx(struct net_device *dev) | |
1615 | { | |
1616 | nv_stop_rx(dev); | |
1617 | nv_stop_tx(dev); | |
1618 | } | |
1619 | ||
1da177e4 LT |
1620 | static void nv_txrx_reset(struct net_device *dev) |
1621 | { | |
ac9c1897 | 1622 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
1623 | u8 __iomem *base = get_hwbase(dev); |
1624 | ||
8a4ae7f2 | 1625 | writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); |
1da177e4 LT |
1626 | pci_push(base); |
1627 | udelay(NV_TXRX_RESET_DELAY); | |
8a4ae7f2 | 1628 | writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); |
1da177e4 LT |
1629 | pci_push(base); |
1630 | } | |
1631 | ||
86a0f043 AA |
1632 | static void nv_mac_reset(struct net_device *dev) |
1633 | { | |
1634 | struct fe_priv *np = netdev_priv(dev); | |
1635 | u8 __iomem *base = get_hwbase(dev); | |
4e84f9b1 | 1636 | u32 temp1, temp2, temp3; |
86a0f043 | 1637 | |
86a0f043 AA |
1638 | writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); |
1639 | pci_push(base); | |
4e84f9b1 AA |
1640 | |
1641 | /* save registers since they will be cleared on reset */ | |
1642 | temp1 = readl(base + NvRegMacAddrA); | |
1643 | temp2 = readl(base + NvRegMacAddrB); | |
1644 | temp3 = readl(base + NvRegTransmitPoll); | |
1645 | ||
86a0f043 AA |
1646 | writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset); |
1647 | pci_push(base); | |
1648 | udelay(NV_MAC_RESET_DELAY); | |
1649 | writel(0, base + NvRegMacReset); | |
1650 | pci_push(base); | |
1651 | udelay(NV_MAC_RESET_DELAY); | |
4e84f9b1 AA |
1652 | |
1653 | /* restore saved registers */ | |
1654 | writel(temp1, base + NvRegMacAddrA); | |
1655 | writel(temp2, base + NvRegMacAddrB); | |
1656 | writel(temp3, base + NvRegTransmitPoll); | |
1657 | ||
86a0f043 AA |
1658 | writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); |
1659 | pci_push(base); | |
1660 | } | |
1661 | ||
f5d827ae | 1662 | /* Caller must appropriately lock netdev_priv(dev)->hwstats_lock */ |
1663 | static void nv_update_stats(struct net_device *dev) | |
57fff698 AA |
1664 | { |
1665 | struct fe_priv *np = netdev_priv(dev); | |
1666 | u8 __iomem *base = get_hwbase(dev); | |
1667 | ||
f5d827ae | 1668 | /* If it happens that this is run in top-half context, then |
1669 | * replace the spin_lock of hwstats_lock with | |
1670 | * spin_lock_irqsave() in calling functions. */ | |
1671 | WARN_ONCE(in_irq(), "forcedeth: estats spin_lock(_bh) from top-half"); | |
1672 | assert_spin_locked(&np->hwstats_lock); | |
1673 | ||
1674 | /* query hardware */ | |
57fff698 AA |
1675 | np->estats.tx_bytes += readl(base + NvRegTxCnt); |
1676 | np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt); | |
1677 | np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt); | |
1678 | np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt); | |
1679 | np->estats.tx_late_collision += readl(base + NvRegTxLateCol); | |
1680 | np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow); | |
1681 | np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier); | |
1682 | np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef); | |
1683 | np->estats.tx_retry_error += readl(base + NvRegTxRetryErr); | |
1684 | np->estats.rx_frame_error += readl(base + NvRegRxFrameErr); | |
1685 | np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte); | |
1686 | np->estats.rx_late_collision += readl(base + NvRegRxLateCol); | |
1687 | np->estats.rx_runt += readl(base + NvRegRxRunt); | |
1688 | np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong); | |
1689 | np->estats.rx_over_errors += readl(base + NvRegRxOverflow); | |
1690 | np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr); | |
1691 | np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr); | |
1692 | np->estats.rx_length_error += readl(base + NvRegRxLenErr); | |
1693 | np->estats.rx_unicast += readl(base + NvRegRxUnicast); | |
1694 | np->estats.rx_multicast += readl(base + NvRegRxMulticast); | |
1695 | np->estats.rx_broadcast += readl(base + NvRegRxBroadcast); | |
1696 | np->estats.rx_packets = | |
1697 | np->estats.rx_unicast + | |
1698 | np->estats.rx_multicast + | |
1699 | np->estats.rx_broadcast; | |
1700 | np->estats.rx_errors_total = | |
1701 | np->estats.rx_crc_errors + | |
1702 | np->estats.rx_over_errors + | |
1703 | np->estats.rx_frame_error + | |
1704 | (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) + | |
1705 | np->estats.rx_late_collision + | |
1706 | np->estats.rx_runt + | |
1707 | np->estats.rx_frame_too_long; | |
1708 | np->estats.tx_errors_total = | |
1709 | np->estats.tx_late_collision + | |
1710 | np->estats.tx_fifo_errors + | |
1711 | np->estats.tx_carrier_errors + | |
1712 | np->estats.tx_excess_deferral + | |
1713 | np->estats.tx_retry_error; | |
1714 | ||
1715 | if (np->driver_data & DEV_HAS_STATISTICS_V2) { | |
1716 | np->estats.tx_deferral += readl(base + NvRegTxDef); | |
1717 | np->estats.tx_packets += readl(base + NvRegTxFrame); | |
1718 | np->estats.rx_bytes += readl(base + NvRegRxCnt); | |
1719 | np->estats.tx_pause += readl(base + NvRegTxPause); | |
1720 | np->estats.rx_pause += readl(base + NvRegRxPause); | |
1721 | np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame); | |
0bdfea8b | 1722 | np->estats.rx_errors_total += np->estats.rx_drop_frame; |
57fff698 | 1723 | } |
9c662435 AA |
1724 | |
1725 | if (np->driver_data & DEV_HAS_STATISTICS_V3) { | |
1726 | np->estats.tx_unicast += readl(base + NvRegTxUnicast); | |
1727 | np->estats.tx_multicast += readl(base + NvRegTxMulticast); | |
1728 | np->estats.tx_broadcast += readl(base + NvRegTxBroadcast); | |
1729 | } | |
57fff698 AA |
1730 | } |
1731 | ||
1da177e4 | 1732 | /* |
f5d827ae | 1733 | * nv_get_stats64: dev->ndo_get_stats64 function |
1da177e4 LT |
1734 | * Get latest stats value from the nic. |
1735 | * Called with read_lock(&dev_base_lock) held for read - | |
1736 | * only synchronized against unregister_netdevice. | |
1737 | */ | |
f5d827ae | 1738 | static struct rtnl_link_stats64* |
1739 | nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) | |
1740 | __acquires(&netdev_priv(dev)->hwstats_lock) | |
1741 | __releases(&netdev_priv(dev)->hwstats_lock) | |
1da177e4 | 1742 | { |
ac9c1897 | 1743 | struct fe_priv *np = netdev_priv(dev); |
f5d827ae | 1744 | unsigned int syncp_start; |
1745 | ||
1746 | /* | |
1747 | * Note: because HW stats are not always available and for | |
1748 | * consistency reasons, the following ifconfig stats are | |
1749 | * managed by software: rx_bytes, tx_bytes, rx_packets and | |
1750 | * tx_packets. The related hardware stats reported by ethtool | |
1751 | * should be equivalent to these ifconfig stats, with 4 | |
1752 | * additional bytes per packet (Ethernet FCS CRC), except for | |
1753 | * tx_packets when TSO kicks in. | |
1754 | */ | |
1755 | ||
1756 | /* software stats */ | |
1757 | do { | |
505a467b | 1758 | syncp_start = u64_stats_fetch_begin_bh(&np->swstats_rx_syncp); |
f5d827ae | 1759 | storage->rx_packets = np->stat_rx_packets; |
1760 | storage->rx_bytes = np->stat_rx_bytes; | |
0a1f222d | 1761 | storage->rx_dropped = np->stat_rx_dropped; |
f5d827ae | 1762 | storage->rx_missed_errors = np->stat_rx_missed_errors; |
505a467b | 1763 | } while (u64_stats_fetch_retry_bh(&np->swstats_rx_syncp, syncp_start)); |
f5d827ae | 1764 | |
1765 | do { | |
505a467b | 1766 | syncp_start = u64_stats_fetch_begin_bh(&np->swstats_tx_syncp); |
f5d827ae | 1767 | storage->tx_packets = np->stat_tx_packets; |
1768 | storage->tx_bytes = np->stat_tx_bytes; | |
1769 | storage->tx_dropped = np->stat_tx_dropped; | |
505a467b | 1770 | } while (u64_stats_fetch_retry_bh(&np->swstats_tx_syncp, syncp_start)); |
1da177e4 | 1771 | |
21828163 | 1772 | /* If the nic supports hw counters then retrieve latest values */ |
f5d827ae | 1773 | if (np->driver_data & DEV_HAS_STATISTICS_V123) { |
1774 | spin_lock_bh(&np->hwstats_lock); | |
21828163 | 1775 | |
f5d827ae | 1776 | nv_update_stats(dev); |
1777 | ||
1778 | /* generic stats */ | |
1779 | storage->rx_errors = np->estats.rx_errors_total; | |
1780 | storage->tx_errors = np->estats.tx_errors_total; | |
1781 | ||
1782 | /* meaningful only when NIC supports stats v3 */ | |
1783 | storage->multicast = np->estats.rx_multicast; | |
1784 | ||
1785 | /* detailed rx_errors */ | |
1786 | storage->rx_length_errors = np->estats.rx_length_error; | |
1787 | storage->rx_over_errors = np->estats.rx_over_errors; | |
1788 | storage->rx_crc_errors = np->estats.rx_crc_errors; | |
1789 | storage->rx_frame_errors = np->estats.rx_frame_align_error; | |
1790 | storage->rx_fifo_errors = np->estats.rx_drop_frame; | |
674aee3b | 1791 | |
f5d827ae | 1792 | /* detailed tx_errors */ |
1793 | storage->tx_carrier_errors = np->estats.tx_carrier_errors; | |
1794 | storage->tx_fifo_errors = np->estats.tx_fifo_errors; | |
1795 | ||
1796 | spin_unlock_bh(&np->hwstats_lock); | |
21828163 | 1797 | } |
8148ff45 | 1798 | |
f5d827ae | 1799 | return storage; |
1da177e4 LT |
1800 | } |
1801 | ||
1802 | /* | |
1803 | * nv_alloc_rx: fill rx ring entries. | |
1804 | * Return 1 if the allocations for the skbs failed and the | |
1805 | * rx engine is without Available descriptors | |
1806 | */ | |
1807 | static int nv_alloc_rx(struct net_device *dev) | |
1808 | { | |
ac9c1897 | 1809 | struct fe_priv *np = netdev_priv(dev); |
78aea4fc | 1810 | struct ring_desc *less_rx; |
1da177e4 | 1811 | |
86b22b0d AA |
1812 | less_rx = np->get_rx.orig; |
1813 | if (less_rx-- == np->first_rx.orig) | |
1814 | less_rx = np->last_rx.orig; | |
761fcd9e | 1815 | |
86b22b0d | 1816 | while (np->put_rx.orig != less_rx) { |
dae2e9f4 | 1817 | struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD); |
86b22b0d | 1818 | if (skb) { |
86b22b0d | 1819 | np->put_rx_ctx->skb = skb; |
4305b541 ACM |
1820 | np->put_rx_ctx->dma = pci_map_single(np->pci_dev, |
1821 | skb->data, | |
8b5be268 | 1822 | skb_tailroom(skb), |
4305b541 | 1823 | PCI_DMA_FROMDEVICE); |
8b5be268 | 1824 | np->put_rx_ctx->dma_len = skb_tailroom(skb); |
86b22b0d AA |
1825 | np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma); |
1826 | wmb(); | |
1827 | np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL); | |
b01867cb | 1828 | if (unlikely(np->put_rx.orig++ == np->last_rx.orig)) |
86b22b0d | 1829 | np->put_rx.orig = np->first_rx.orig; |
b01867cb | 1830 | if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) |
86b22b0d | 1831 | np->put_rx_ctx = np->first_rx_ctx; |
0a1f222d | 1832 | } else { |
1833 | u64_stats_update_begin(&np->swstats_rx_syncp); | |
1834 | np->stat_rx_dropped++; | |
1835 | u64_stats_update_end(&np->swstats_rx_syncp); | |
86b22b0d | 1836 | return 1; |
0a1f222d | 1837 | } |
86b22b0d AA |
1838 | } |
1839 | return 0; | |
1840 | } | |
1841 | ||
1842 | static int nv_alloc_rx_optimized(struct net_device *dev) | |
1843 | { | |
1844 | struct fe_priv *np = netdev_priv(dev); | |
78aea4fc | 1845 | struct ring_desc_ex *less_rx; |
86b22b0d AA |
1846 | |
1847 | less_rx = np->get_rx.ex; | |
1848 | if (less_rx-- == np->first_rx.ex) | |
1849 | less_rx = np->last_rx.ex; | |
761fcd9e | 1850 | |
86b22b0d | 1851 | while (np->put_rx.ex != less_rx) { |
dae2e9f4 | 1852 | struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD); |
0d63fb32 | 1853 | if (skb) { |
761fcd9e | 1854 | np->put_rx_ctx->skb = skb; |
4305b541 ACM |
1855 | np->put_rx_ctx->dma = pci_map_single(np->pci_dev, |
1856 | skb->data, | |
8b5be268 | 1857 | skb_tailroom(skb), |
4305b541 | 1858 | PCI_DMA_FROMDEVICE); |
8b5be268 | 1859 | np->put_rx_ctx->dma_len = skb_tailroom(skb); |
5bb7ea26 AV |
1860 | np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma)); |
1861 | np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma)); | |
86b22b0d AA |
1862 | wmb(); |
1863 | np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL); | |
b01867cb | 1864 | if (unlikely(np->put_rx.ex++ == np->last_rx.ex)) |
86b22b0d | 1865 | np->put_rx.ex = np->first_rx.ex; |
b01867cb | 1866 | if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) |
0d63fb32 | 1867 | np->put_rx_ctx = np->first_rx_ctx; |
0a1f222d | 1868 | } else { |
1869 | u64_stats_update_begin(&np->swstats_rx_syncp); | |
1870 | np->stat_rx_dropped++; | |
1871 | u64_stats_update_end(&np->swstats_rx_syncp); | |
0d63fb32 | 1872 | return 1; |
0a1f222d | 1873 | } |
1da177e4 | 1874 | } |
1da177e4 LT |
1875 | return 0; |
1876 | } | |
1877 | ||
e27cdba5 | 1878 | /* If rx bufs are exhausted called after 50ms to attempt to refresh */ |
e27cdba5 SH |
1879 | static void nv_do_rx_refill(unsigned long data) |
1880 | { | |
1881 | struct net_device *dev = (struct net_device *) data; | |
bea3348e | 1882 | struct fe_priv *np = netdev_priv(dev); |
e27cdba5 SH |
1883 | |
1884 | /* Just reschedule NAPI rx processing */ | |
288379f0 | 1885 | napi_schedule(&np->napi); |
e27cdba5 | 1886 | } |
1da177e4 | 1887 | |
f3b197ac | 1888 | static void nv_init_rx(struct net_device *dev) |
1da177e4 | 1889 | { |
ac9c1897 | 1890 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 1891 | int i; |
36b30ea9 | 1892 | |
761fcd9e | 1893 | np->get_rx = np->put_rx = np->first_rx = np->rx_ring; |
36b30ea9 JG |
1894 | |
1895 | if (!nv_optimized(np)) | |
761fcd9e AA |
1896 | np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1]; |
1897 | else | |
1898 | np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1]; | |
1899 | np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb; | |
1900 | np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1]; | |
1da177e4 | 1901 | |
761fcd9e | 1902 | for (i = 0; i < np->rx_ring_size; i++) { |
36b30ea9 | 1903 | if (!nv_optimized(np)) { |
f82a9352 | 1904 | np->rx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1905 | np->rx_ring.orig[i].buf = 0; |
1906 | } else { | |
f82a9352 | 1907 | np->rx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
1908 | np->rx_ring.ex[i].txvlan = 0; |
1909 | np->rx_ring.ex[i].bufhigh = 0; | |
1910 | np->rx_ring.ex[i].buflow = 0; | |
1911 | } | |
1912 | np->rx_skb[i].skb = NULL; | |
1913 | np->rx_skb[i].dma = 0; | |
1914 | } | |
d81c0983 MS |
1915 | } |
1916 | ||
1917 | static void nv_init_tx(struct net_device *dev) | |
1918 | { | |
ac9c1897 | 1919 | struct fe_priv *np = netdev_priv(dev); |
d81c0983 | 1920 | int i; |
36b30ea9 | 1921 | |
761fcd9e | 1922 | np->get_tx = np->put_tx = np->first_tx = np->tx_ring; |
36b30ea9 JG |
1923 | |
1924 | if (!nv_optimized(np)) | |
761fcd9e AA |
1925 | np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1]; |
1926 | else | |
1927 | np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1]; | |
1928 | np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb; | |
1929 | np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1]; | |
b8bfca94 | 1930 | netdev_reset_queue(np->dev); |
3b446c3e AA |
1931 | np->tx_pkts_in_progress = 0; |
1932 | np->tx_change_owner = NULL; | |
1933 | np->tx_end_flip = NULL; | |
8f955d7f | 1934 | np->tx_stop = 0; |
d81c0983 | 1935 | |
eafa59f6 | 1936 | for (i = 0; i < np->tx_ring_size; i++) { |
36b30ea9 | 1937 | if (!nv_optimized(np)) { |
f82a9352 | 1938 | np->tx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
1939 | np->tx_ring.orig[i].buf = 0; |
1940 | } else { | |
f82a9352 | 1941 | np->tx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
1942 | np->tx_ring.ex[i].txvlan = 0; |
1943 | np->tx_ring.ex[i].bufhigh = 0; | |
1944 | np->tx_ring.ex[i].buflow = 0; | |
1945 | } | |
1946 | np->tx_skb[i].skb = NULL; | |
1947 | np->tx_skb[i].dma = 0; | |
3b446c3e | 1948 | np->tx_skb[i].dma_len = 0; |
73a37079 | 1949 | np->tx_skb[i].dma_single = 0; |
3b446c3e AA |
1950 | np->tx_skb[i].first_tx_desc = NULL; |
1951 | np->tx_skb[i].next_tx_ctx = NULL; | |
ac9c1897 | 1952 | } |
d81c0983 MS |
1953 | } |
1954 | ||
1955 | static int nv_init_ring(struct net_device *dev) | |
1956 | { | |
86b22b0d AA |
1957 | struct fe_priv *np = netdev_priv(dev); |
1958 | ||
d81c0983 MS |
1959 | nv_init_tx(dev); |
1960 | nv_init_rx(dev); | |
36b30ea9 JG |
1961 | |
1962 | if (!nv_optimized(np)) | |
86b22b0d AA |
1963 | return nv_alloc_rx(dev); |
1964 | else | |
1965 | return nv_alloc_rx_optimized(dev); | |
1da177e4 LT |
1966 | } |
1967 | ||
73a37079 | 1968 | static void nv_unmap_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb) |
ac9c1897 | 1969 | { |
761fcd9e | 1970 | if (tx_skb->dma) { |
73a37079 ED |
1971 | if (tx_skb->dma_single) |
1972 | pci_unmap_single(np->pci_dev, tx_skb->dma, | |
1973 | tx_skb->dma_len, | |
1974 | PCI_DMA_TODEVICE); | |
1975 | else | |
1976 | pci_unmap_page(np->pci_dev, tx_skb->dma, | |
1977 | tx_skb->dma_len, | |
1978 | PCI_DMA_TODEVICE); | |
761fcd9e | 1979 | tx_skb->dma = 0; |
fa45459e | 1980 | } |
73a37079 ED |
1981 | } |
1982 | ||
1983 | static int nv_release_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb) | |
1984 | { | |
1985 | nv_unmap_txskb(np, tx_skb); | |
761fcd9e AA |
1986 | if (tx_skb->skb) { |
1987 | dev_kfree_skb_any(tx_skb->skb); | |
1988 | tx_skb->skb = NULL; | |
fa45459e | 1989 | return 1; |
ac9c1897 | 1990 | } |
73a37079 | 1991 | return 0; |
ac9c1897 AA |
1992 | } |
1993 | ||
1da177e4 LT |
1994 | static void nv_drain_tx(struct net_device *dev) |
1995 | { | |
ac9c1897 AA |
1996 | struct fe_priv *np = netdev_priv(dev); |
1997 | unsigned int i; | |
f3b197ac | 1998 | |
eafa59f6 | 1999 | for (i = 0; i < np->tx_ring_size; i++) { |
36b30ea9 | 2000 | if (!nv_optimized(np)) { |
f82a9352 | 2001 | np->tx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
2002 | np->tx_ring.orig[i].buf = 0; |
2003 | } else { | |
f82a9352 | 2004 | np->tx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
2005 | np->tx_ring.ex[i].txvlan = 0; |
2006 | np->tx_ring.ex[i].bufhigh = 0; | |
2007 | np->tx_ring.ex[i].buflow = 0; | |
2008 | } | |
f5d827ae | 2009 | if (nv_release_txskb(np, &np->tx_skb[i])) { |
2010 | u64_stats_update_begin(&np->swstats_tx_syncp); | |
2011 | np->stat_tx_dropped++; | |
2012 | u64_stats_update_end(&np->swstats_tx_syncp); | |
2013 | } | |
3b446c3e AA |
2014 | np->tx_skb[i].dma = 0; |
2015 | np->tx_skb[i].dma_len = 0; | |
73a37079 | 2016 | np->tx_skb[i].dma_single = 0; |
3b446c3e AA |
2017 | np->tx_skb[i].first_tx_desc = NULL; |
2018 | np->tx_skb[i].next_tx_ctx = NULL; | |
1da177e4 | 2019 | } |
3b446c3e AA |
2020 | np->tx_pkts_in_progress = 0; |
2021 | np->tx_change_owner = NULL; | |
2022 | np->tx_end_flip = NULL; | |
1da177e4 LT |
2023 | } |
2024 | ||
2025 | static void nv_drain_rx(struct net_device *dev) | |
2026 | { | |
ac9c1897 | 2027 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 2028 | int i; |
761fcd9e | 2029 | |
eafa59f6 | 2030 | for (i = 0; i < np->rx_ring_size; i++) { |
36b30ea9 | 2031 | if (!nv_optimized(np)) { |
f82a9352 | 2032 | np->rx_ring.orig[i].flaglen = 0; |
761fcd9e AA |
2033 | np->rx_ring.orig[i].buf = 0; |
2034 | } else { | |
f82a9352 | 2035 | np->rx_ring.ex[i].flaglen = 0; |
761fcd9e AA |
2036 | np->rx_ring.ex[i].txvlan = 0; |
2037 | np->rx_ring.ex[i].bufhigh = 0; | |
2038 | np->rx_ring.ex[i].buflow = 0; | |
2039 | } | |
1da177e4 | 2040 | wmb(); |
761fcd9e AA |
2041 | if (np->rx_skb[i].skb) { |
2042 | pci_unmap_single(np->pci_dev, np->rx_skb[i].dma, | |
4305b541 ACM |
2043 | (skb_end_pointer(np->rx_skb[i].skb) - |
2044 | np->rx_skb[i].skb->data), | |
2045 | PCI_DMA_FROMDEVICE); | |
761fcd9e AA |
2046 | dev_kfree_skb(np->rx_skb[i].skb); |
2047 | np->rx_skb[i].skb = NULL; | |
1da177e4 LT |
2048 | } |
2049 | } | |
2050 | } | |
2051 | ||
36b30ea9 | 2052 | static void nv_drain_rxtx(struct net_device *dev) |
1da177e4 LT |
2053 | { |
2054 | nv_drain_tx(dev); | |
2055 | nv_drain_rx(dev); | |
2056 | } | |
2057 | ||
761fcd9e AA |
2058 | static inline u32 nv_get_empty_tx_slots(struct fe_priv *np) |
2059 | { | |
2060 | return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size)); | |
2061 | } | |
2062 | ||
a433686c AA |
2063 | static void nv_legacybackoff_reseed(struct net_device *dev) |
2064 | { | |
2065 | u8 __iomem *base = get_hwbase(dev); | |
2066 | u32 reg; | |
2067 | u32 low; | |
2068 | int tx_status = 0; | |
2069 | ||
2070 | reg = readl(base + NvRegSlotTime) & ~NVREG_SLOTTIME_MASK; | |
2071 | get_random_bytes(&low, sizeof(low)); | |
2072 | reg |= low & NVREG_SLOTTIME_MASK; | |
2073 | ||
2074 | /* Need to stop tx before change takes effect. | |
2075 | * Caller has already gained np->lock. | |
2076 | */ | |
2077 | tx_status = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START; | |
2078 | if (tx_status) | |
2079 | nv_stop_tx(dev); | |
2080 | nv_stop_rx(dev); | |
2081 | writel(reg, base + NvRegSlotTime); | |
2082 | if (tx_status) | |
2083 | nv_start_tx(dev); | |
2084 | nv_start_rx(dev); | |
2085 | } | |
2086 | ||
2087 | /* Gear Backoff Seeds */ | |
2088 | #define BACKOFF_SEEDSET_ROWS 8 | |
2089 | #define BACKOFF_SEEDSET_LFSRS 15 | |
2090 | ||
2091 | /* Known Good seed sets */ | |
2092 | static const u32 main_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = { | |
78aea4fc SJ |
2093 | {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874}, |
2094 | {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 385, 761, 790, 974}, | |
2095 | {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874}, | |
2096 | {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 386, 761, 790, 974}, | |
2097 | {266, 265, 276, 585, 397, 208, 345, 355, 365, 376, 385, 396, 771, 700, 984}, | |
2098 | {266, 265, 276, 586, 397, 208, 346, 355, 365, 376, 285, 396, 771, 700, 984}, | |
2099 | {366, 365, 376, 686, 497, 308, 447, 455, 466, 476, 485, 496, 871, 800, 84}, | |
2100 | {466, 465, 476, 786, 597, 408, 547, 555, 566, 576, 585, 597, 971, 900, 184} }; | |
a433686c AA |
2101 | |
2102 | static const u32 gear_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = { | |
78aea4fc SJ |
2103 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, |
2104 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2105 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 397}, | |
2106 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, | |
2107 | {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375, 30, 295}, | |
2108 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2109 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}, | |
2110 | {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395} }; | |
a433686c AA |
2111 | |
2112 | static void nv_gear_backoff_reseed(struct net_device *dev) | |
2113 | { | |
2114 | u8 __iomem *base = get_hwbase(dev); | |
2115 | u32 miniseed1, miniseed2, miniseed2_reversed, miniseed3, miniseed3_reversed; | |
2116 | u32 temp, seedset, combinedSeed; | |
2117 | int i; | |
2118 | ||
2119 | /* Setup seed for free running LFSR */ | |
2120 | /* We are going to read the time stamp counter 3 times | |
2121 | and swizzle bits around to increase randomness */ | |
2122 | get_random_bytes(&miniseed1, sizeof(miniseed1)); | |
2123 | miniseed1 &= 0x0fff; | |
2124 | if (miniseed1 == 0) | |
2125 | miniseed1 = 0xabc; | |
2126 | ||
2127 | get_random_bytes(&miniseed2, sizeof(miniseed2)); | |
2128 | miniseed2 &= 0x0fff; | |
2129 | if (miniseed2 == 0) | |
2130 | miniseed2 = 0xabc; | |
2131 | miniseed2_reversed = | |
2132 | ((miniseed2 & 0xF00) >> 8) | | |
2133 | (miniseed2 & 0x0F0) | | |
2134 | ((miniseed2 & 0x00F) << 8); | |
2135 | ||
2136 | get_random_bytes(&miniseed3, sizeof(miniseed3)); | |
2137 | miniseed3 &= 0x0fff; | |
2138 | if (miniseed3 == 0) | |
2139 | miniseed3 = 0xabc; | |
2140 | miniseed3_reversed = | |
2141 | ((miniseed3 & 0xF00) >> 8) | | |
2142 | (miniseed3 & 0x0F0) | | |
2143 | ((miniseed3 & 0x00F) << 8); | |
2144 | ||
2145 | combinedSeed = ((miniseed1 ^ miniseed2_reversed) << 12) | | |
2146 | (miniseed2 ^ miniseed3_reversed); | |
2147 | ||
2148 | /* Seeds can not be zero */ | |
2149 | if ((combinedSeed & NVREG_BKOFFCTRL_SEED_MASK) == 0) | |
2150 | combinedSeed |= 0x08; | |
2151 | if ((combinedSeed & (NVREG_BKOFFCTRL_SEED_MASK << NVREG_BKOFFCTRL_GEAR)) == 0) | |
2152 | combinedSeed |= 0x8000; | |
2153 | ||
2154 | /* No need to disable tx here */ | |
2155 | temp = NVREG_BKOFFCTRL_DEFAULT | (0 << NVREG_BKOFFCTRL_SELECT); | |
2156 | temp |= combinedSeed & NVREG_BKOFFCTRL_SEED_MASK; | |
2157 | temp |= combinedSeed >> NVREG_BKOFFCTRL_GEAR; | |
78aea4fc | 2158 | writel(temp, base + NvRegBackOffControl); |
a433686c | 2159 | |
78aea4fc | 2160 | /* Setup seeds for all gear LFSRs. */ |
a433686c AA |
2161 | get_random_bytes(&seedset, sizeof(seedset)); |
2162 | seedset = seedset % BACKOFF_SEEDSET_ROWS; | |
78aea4fc | 2163 | for (i = 1; i <= BACKOFF_SEEDSET_LFSRS; i++) { |
a433686c AA |
2164 | temp = NVREG_BKOFFCTRL_DEFAULT | (i << NVREG_BKOFFCTRL_SELECT); |
2165 | temp |= main_seedset[seedset][i-1] & 0x3ff; | |
2166 | temp |= ((gear_seedset[seedset][i-1] & 0x3ff) << NVREG_BKOFFCTRL_GEAR); | |
2167 | writel(temp, base + NvRegBackOffControl); | |
2168 | } | |
2169 | } | |
2170 | ||
1da177e4 LT |
2171 | /* |
2172 | * nv_start_xmit: dev->hard_start_xmit function | |
932ff279 | 2173 | * Called with netif_tx_lock held. |
1da177e4 | 2174 | */ |
61357325 | 2175 | static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 2176 | { |
ac9c1897 | 2177 | struct fe_priv *np = netdev_priv(dev); |
fa45459e | 2178 | u32 tx_flags = 0; |
ac9c1897 AA |
2179 | u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); |
2180 | unsigned int fragments = skb_shinfo(skb)->nr_frags; | |
ac9c1897 | 2181 | unsigned int i; |
fa45459e AA |
2182 | u32 offset = 0; |
2183 | u32 bcnt; | |
e743d313 | 2184 | u32 size = skb_headlen(skb); |
fa45459e | 2185 | u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); |
761fcd9e | 2186 | u32 empty_slots; |
78aea4fc SJ |
2187 | struct ring_desc *put_tx; |
2188 | struct ring_desc *start_tx; | |
2189 | struct ring_desc *prev_tx; | |
2190 | struct nv_skb_map *prev_tx_ctx; | |
bd6ca637 | 2191 | unsigned long flags; |
fa45459e AA |
2192 | |
2193 | /* add fragments to entries count */ | |
2194 | for (i = 0; i < fragments; i++) { | |
e45a6187 | 2195 | u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]); |
9e903e08 | 2196 | |
e45a6187 | 2197 | entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) + |
2198 | ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
fa45459e | 2199 | } |
ac9c1897 | 2200 | |
001eb84b | 2201 | spin_lock_irqsave(&np->lock, flags); |
761fcd9e | 2202 | empty_slots = nv_get_empty_tx_slots(np); |
445583b8 | 2203 | if (unlikely(empty_slots <= entries)) { |
ac9c1897 | 2204 | netif_stop_queue(dev); |
aaa37d2d | 2205 | np->tx_stop = 1; |
bd6ca637 | 2206 | spin_unlock_irqrestore(&np->lock, flags); |
ac9c1897 AA |
2207 | return NETDEV_TX_BUSY; |
2208 | } | |
001eb84b | 2209 | spin_unlock_irqrestore(&np->lock, flags); |
1da177e4 | 2210 | |
86b22b0d | 2211 | start_tx = put_tx = np->put_tx.orig; |
761fcd9e | 2212 | |
fa45459e AA |
2213 | /* setup the header buffer */ |
2214 | do { | |
761fcd9e AA |
2215 | prev_tx = put_tx; |
2216 | prev_tx_ctx = np->put_tx_ctx; | |
fa45459e | 2217 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; |
761fcd9e | 2218 | np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt, |
fa45459e | 2219 | PCI_DMA_TODEVICE); |
761fcd9e | 2220 | np->put_tx_ctx->dma_len = bcnt; |
73a37079 | 2221 | np->put_tx_ctx->dma_single = 1; |
86b22b0d AA |
2222 | put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma); |
2223 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); | |
445583b8 | 2224 | |
fa45459e AA |
2225 | tx_flags = np->tx_flags; |
2226 | offset += bcnt; | |
2227 | size -= bcnt; | |
445583b8 | 2228 | if (unlikely(put_tx++ == np->last_tx.orig)) |
86b22b0d | 2229 | put_tx = np->first_tx.orig; |
445583b8 | 2230 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2231 | np->put_tx_ctx = np->first_tx_ctx; |
f82a9352 | 2232 | } while (size); |
fa45459e AA |
2233 | |
2234 | /* setup the fragments */ | |
2235 | for (i = 0; i < fragments; i++) { | |
9e903e08 | 2236 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
e45a6187 | 2237 | u32 frag_size = skb_frag_size(frag); |
fa45459e AA |
2238 | offset = 0; |
2239 | ||
2240 | do { | |
761fcd9e AA |
2241 | prev_tx = put_tx; |
2242 | prev_tx_ctx = np->put_tx_ctx; | |
e45a6187 | 2243 | bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size; |
671173c3 IC |
2244 | np->put_tx_ctx->dma = skb_frag_dma_map( |
2245 | &np->pci_dev->dev, | |
2246 | frag, offset, | |
2247 | bcnt, | |
5d6bcdfe | 2248 | DMA_TO_DEVICE); |
761fcd9e | 2249 | np->put_tx_ctx->dma_len = bcnt; |
73a37079 | 2250 | np->put_tx_ctx->dma_single = 0; |
86b22b0d AA |
2251 | put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma); |
2252 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); | |
445583b8 | 2253 | |
fa45459e | 2254 | offset += bcnt; |
e45a6187 | 2255 | frag_size -= bcnt; |
445583b8 | 2256 | if (unlikely(put_tx++ == np->last_tx.orig)) |
86b22b0d | 2257 | put_tx = np->first_tx.orig; |
445583b8 | 2258 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2259 | np->put_tx_ctx = np->first_tx_ctx; |
e45a6187 | 2260 | } while (frag_size); |
fa45459e | 2261 | } |
ac9c1897 | 2262 | |
fa45459e | 2263 | /* set last fragment flag */ |
86b22b0d | 2264 | prev_tx->flaglen |= cpu_to_le32(tx_flags_extra); |
ac9c1897 | 2265 | |
761fcd9e AA |
2266 | /* save skb in this slot's context area */ |
2267 | prev_tx_ctx->skb = skb; | |
fa45459e | 2268 | |
89114afd | 2269 | if (skb_is_gso(skb)) |
7967168c | 2270 | tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT); |
ac9c1897 | 2271 | else |
1d39ed56 | 2272 | tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ? |
84fa7933 | 2273 | NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0; |
ac9c1897 | 2274 | |
bd6ca637 | 2275 | spin_lock_irqsave(&np->lock, flags); |
164a86e4 | 2276 | |
fa45459e | 2277 | /* set tx flags */ |
86b22b0d | 2278 | start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra); |
b8bfca94 TH |
2279 | |
2280 | netdev_sent_queue(np->dev, skb->len); | |
2281 | ||
49cbb1c1 WB |
2282 | skb_tx_timestamp(skb); |
2283 | ||
86b22b0d | 2284 | np->put_tx.orig = put_tx; |
1da177e4 | 2285 | |
bd6ca637 | 2286 | spin_unlock_irqrestore(&np->lock, flags); |
761fcd9e | 2287 | |
8a4ae7f2 | 2288 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
ac9c1897 | 2289 | return NETDEV_TX_OK; |
1da177e4 LT |
2290 | } |
2291 | ||
61357325 SH |
2292 | static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb, |
2293 | struct net_device *dev) | |
86b22b0d AA |
2294 | { |
2295 | struct fe_priv *np = netdev_priv(dev); | |
2296 | u32 tx_flags = 0; | |
445583b8 | 2297 | u32 tx_flags_extra; |
86b22b0d AA |
2298 | unsigned int fragments = skb_shinfo(skb)->nr_frags; |
2299 | unsigned int i; | |
2300 | u32 offset = 0; | |
2301 | u32 bcnt; | |
e743d313 | 2302 | u32 size = skb_headlen(skb); |
86b22b0d AA |
2303 | u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); |
2304 | u32 empty_slots; | |
78aea4fc SJ |
2305 | struct ring_desc_ex *put_tx; |
2306 | struct ring_desc_ex *start_tx; | |
2307 | struct ring_desc_ex *prev_tx; | |
2308 | struct nv_skb_map *prev_tx_ctx; | |
2309 | struct nv_skb_map *start_tx_ctx; | |
bd6ca637 | 2310 | unsigned long flags; |
86b22b0d AA |
2311 | |
2312 | /* add fragments to entries count */ | |
2313 | for (i = 0; i < fragments; i++) { | |
e45a6187 | 2314 | u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]); |
9e903e08 | 2315 | |
e45a6187 | 2316 | entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) + |
2317 | ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0); | |
86b22b0d AA |
2318 | } |
2319 | ||
001eb84b | 2320 | spin_lock_irqsave(&np->lock, flags); |
86b22b0d | 2321 | empty_slots = nv_get_empty_tx_slots(np); |
445583b8 | 2322 | if (unlikely(empty_slots <= entries)) { |
86b22b0d | 2323 | netif_stop_queue(dev); |
aaa37d2d | 2324 | np->tx_stop = 1; |
bd6ca637 | 2325 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d AA |
2326 | return NETDEV_TX_BUSY; |
2327 | } | |
001eb84b | 2328 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d AA |
2329 | |
2330 | start_tx = put_tx = np->put_tx.ex; | |
3b446c3e | 2331 | start_tx_ctx = np->put_tx_ctx; |
86b22b0d AA |
2332 | |
2333 | /* setup the header buffer */ | |
2334 | do { | |
2335 | prev_tx = put_tx; | |
2336 | prev_tx_ctx = np->put_tx_ctx; | |
2337 | bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size; | |
2338 | np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt, | |
2339 | PCI_DMA_TODEVICE); | |
2340 | np->put_tx_ctx->dma_len = bcnt; | |
73a37079 | 2341 | np->put_tx_ctx->dma_single = 1; |
5bb7ea26 AV |
2342 | put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma)); |
2343 | put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma)); | |
86b22b0d | 2344 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); |
445583b8 AA |
2345 | |
2346 | tx_flags = NV_TX2_VALID; | |
86b22b0d AA |
2347 | offset += bcnt; |
2348 | size -= bcnt; | |
445583b8 | 2349 | if (unlikely(put_tx++ == np->last_tx.ex)) |
86b22b0d | 2350 | put_tx = np->first_tx.ex; |
445583b8 | 2351 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d AA |
2352 | np->put_tx_ctx = np->first_tx_ctx; |
2353 | } while (size); | |
2354 | ||
2355 | /* setup the fragments */ | |
2356 | for (i = 0; i < fragments; i++) { | |
2357 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
e45a6187 | 2358 | u32 frag_size = skb_frag_size(frag); |
86b22b0d AA |
2359 | offset = 0; |
2360 | ||
2361 | do { | |
2362 | prev_tx = put_tx; | |
2363 | prev_tx_ctx = np->put_tx_ctx; | |
e45a6187 | 2364 | bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size; |
671173c3 IC |
2365 | np->put_tx_ctx->dma = skb_frag_dma_map( |
2366 | &np->pci_dev->dev, | |
2367 | frag, offset, | |
2368 | bcnt, | |
5d6bcdfe | 2369 | DMA_TO_DEVICE); |
86b22b0d | 2370 | np->put_tx_ctx->dma_len = bcnt; |
73a37079 | 2371 | np->put_tx_ctx->dma_single = 0; |
5bb7ea26 AV |
2372 | put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma)); |
2373 | put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma)); | |
86b22b0d | 2374 | put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags); |
445583b8 | 2375 | |
86b22b0d | 2376 | offset += bcnt; |
e45a6187 | 2377 | frag_size -= bcnt; |
445583b8 | 2378 | if (unlikely(put_tx++ == np->last_tx.ex)) |
86b22b0d | 2379 | put_tx = np->first_tx.ex; |
445583b8 | 2380 | if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d | 2381 | np->put_tx_ctx = np->first_tx_ctx; |
e45a6187 | 2382 | } while (frag_size); |
86b22b0d AA |
2383 | } |
2384 | ||
2385 | /* set last fragment flag */ | |
445583b8 | 2386 | prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET); |
86b22b0d AA |
2387 | |
2388 | /* save skb in this slot's context area */ | |
2389 | prev_tx_ctx->skb = skb; | |
2390 | ||
2391 | if (skb_is_gso(skb)) | |
2392 | tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT); | |
2393 | else | |
2394 | tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ? | |
2395 | NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0; | |
2396 | ||
2397 | /* vlan tag */ | |
eab6d18d JG |
2398 | if (vlan_tx_tag_present(skb)) |
2399 | start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT | | |
2400 | vlan_tx_tag_get(skb)); | |
2401 | else | |
445583b8 | 2402 | start_tx->txvlan = 0; |
86b22b0d | 2403 | |
bd6ca637 | 2404 | spin_lock_irqsave(&np->lock, flags); |
86b22b0d | 2405 | |
3b446c3e AA |
2406 | if (np->tx_limit) { |
2407 | /* Limit the number of outstanding tx. Setup all fragments, but | |
2408 | * do not set the VALID bit on the first descriptor. Save a pointer | |
2409 | * to that descriptor and also for next skb_map element. | |
2410 | */ | |
2411 | ||
2412 | if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) { | |
2413 | if (!np->tx_change_owner) | |
2414 | np->tx_change_owner = start_tx_ctx; | |
2415 | ||
2416 | /* remove VALID bit */ | |
2417 | tx_flags &= ~NV_TX2_VALID; | |
2418 | start_tx_ctx->first_tx_desc = start_tx; | |
2419 | start_tx_ctx->next_tx_ctx = np->put_tx_ctx; | |
2420 | np->tx_end_flip = np->put_tx_ctx; | |
2421 | } else { | |
2422 | np->tx_pkts_in_progress++; | |
2423 | } | |
2424 | } | |
2425 | ||
86b22b0d | 2426 | /* set tx flags */ |
86b22b0d | 2427 | start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra); |
b8bfca94 TH |
2428 | |
2429 | netdev_sent_queue(np->dev, skb->len); | |
2430 | ||
49cbb1c1 WB |
2431 | skb_tx_timestamp(skb); |
2432 | ||
86b22b0d AA |
2433 | np->put_tx.ex = put_tx; |
2434 | ||
bd6ca637 | 2435 | spin_unlock_irqrestore(&np->lock, flags); |
86b22b0d | 2436 | |
86b22b0d | 2437 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
86b22b0d AA |
2438 | return NETDEV_TX_OK; |
2439 | } | |
2440 | ||
3b446c3e AA |
2441 | static inline void nv_tx_flip_ownership(struct net_device *dev) |
2442 | { | |
2443 | struct fe_priv *np = netdev_priv(dev); | |
2444 | ||
2445 | np->tx_pkts_in_progress--; | |
2446 | if (np->tx_change_owner) { | |
30ecce90 AV |
2447 | np->tx_change_owner->first_tx_desc->flaglen |= |
2448 | cpu_to_le32(NV_TX2_VALID); | |
3b446c3e AA |
2449 | np->tx_pkts_in_progress++; |
2450 | ||
2451 | np->tx_change_owner = np->tx_change_owner->next_tx_ctx; | |
2452 | if (np->tx_change_owner == np->tx_end_flip) | |
2453 | np->tx_change_owner = NULL; | |
2454 | ||
2455 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
2456 | } | |
2457 | } | |
2458 | ||
1da177e4 LT |
2459 | /* |
2460 | * nv_tx_done: check for completed packets, release the skbs. | |
2461 | * | |
2462 | * Caller must own np->lock. | |
2463 | */ | |
33912e72 | 2464 | static int nv_tx_done(struct net_device *dev, int limit) |
1da177e4 | 2465 | { |
ac9c1897 | 2466 | struct fe_priv *np = netdev_priv(dev); |
f82a9352 | 2467 | u32 flags; |
33912e72 | 2468 | int tx_work = 0; |
78aea4fc | 2469 | struct ring_desc *orig_get_tx = np->get_tx.orig; |
b8bfca94 | 2470 | unsigned int bytes_compl = 0; |
1da177e4 | 2471 | |
445583b8 | 2472 | while ((np->get_tx.orig != np->put_tx.orig) && |
33912e72 AA |
2473 | !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID) && |
2474 | (tx_work < limit)) { | |
1da177e4 | 2475 | |
73a37079 | 2476 | nv_unmap_txskb(np, np->get_tx_ctx); |
445583b8 | 2477 | |
1da177e4 | 2478 | if (np->desc_ver == DESC_VER_1) { |
f82a9352 | 2479 | if (flags & NV_TX_LASTPACKET) { |
445583b8 | 2480 | if (flags & NV_TX_ERROR) { |
f5d827ae | 2481 | if ((flags & NV_TX_RETRYERROR) |
2482 | && !(flags & NV_TX_RETRYCOUNT_MASK)) | |
a433686c | 2483 | nv_legacybackoff_reseed(dev); |
674aee3b | 2484 | } else { |
f5d827ae | 2485 | u64_stats_update_begin(&np->swstats_tx_syncp); |
2486 | np->stat_tx_packets++; | |
2487 | np->stat_tx_bytes += np->get_tx_ctx->skb->len; | |
2488 | u64_stats_update_end(&np->swstats_tx_syncp); | |
ac9c1897 | 2489 | } |
b8bfca94 | 2490 | bytes_compl += np->get_tx_ctx->skb->len; |
445583b8 AA |
2491 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2492 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2493 | tx_work++; |
1da177e4 LT |
2494 | } |
2495 | } else { | |
f82a9352 | 2496 | if (flags & NV_TX2_LASTPACKET) { |
445583b8 | 2497 | if (flags & NV_TX2_ERROR) { |
f5d827ae | 2498 | if ((flags & NV_TX2_RETRYERROR) |
2499 | && !(flags & NV_TX2_RETRYCOUNT_MASK)) | |
a433686c | 2500 | nv_legacybackoff_reseed(dev); |
674aee3b | 2501 | } else { |
f5d827ae | 2502 | u64_stats_update_begin(&np->swstats_tx_syncp); |
2503 | np->stat_tx_packets++; | |
2504 | np->stat_tx_bytes += np->get_tx_ctx->skb->len; | |
2505 | u64_stats_update_end(&np->swstats_tx_syncp); | |
f3b197ac | 2506 | } |
b8bfca94 | 2507 | bytes_compl += np->get_tx_ctx->skb->len; |
445583b8 AA |
2508 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2509 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2510 | tx_work++; |
1da177e4 LT |
2511 | } |
2512 | } | |
445583b8 | 2513 | if (unlikely(np->get_tx.orig++ == np->last_tx.orig)) |
86b22b0d | 2514 | np->get_tx.orig = np->first_tx.orig; |
445583b8 | 2515 | if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx)) |
86b22b0d AA |
2516 | np->get_tx_ctx = np->first_tx_ctx; |
2517 | } | |
b8bfca94 TH |
2518 | |
2519 | netdev_completed_queue(np->dev, tx_work, bytes_compl); | |
2520 | ||
445583b8 | 2521 | if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) { |
aaa37d2d | 2522 | np->tx_stop = 0; |
86b22b0d | 2523 | netif_wake_queue(dev); |
aaa37d2d | 2524 | } |
33912e72 | 2525 | return tx_work; |
86b22b0d AA |
2526 | } |
2527 | ||
33912e72 | 2528 | static int nv_tx_done_optimized(struct net_device *dev, int limit) |
86b22b0d AA |
2529 | { |
2530 | struct fe_priv *np = netdev_priv(dev); | |
2531 | u32 flags; | |
33912e72 | 2532 | int tx_work = 0; |
78aea4fc | 2533 | struct ring_desc_ex *orig_get_tx = np->get_tx.ex; |
b8bfca94 | 2534 | unsigned long bytes_cleaned = 0; |
86b22b0d | 2535 | |
445583b8 | 2536 | while ((np->get_tx.ex != np->put_tx.ex) && |
217d32dc | 2537 | !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX2_VALID) && |
33912e72 | 2538 | (tx_work < limit)) { |
86b22b0d | 2539 | |
73a37079 | 2540 | nv_unmap_txskb(np, np->get_tx_ctx); |
445583b8 | 2541 | |
86b22b0d | 2542 | if (flags & NV_TX2_LASTPACKET) { |
4687f3f3 | 2543 | if (flags & NV_TX2_ERROR) { |
f5d827ae | 2544 | if ((flags & NV_TX2_RETRYERROR) |
2545 | && !(flags & NV_TX2_RETRYCOUNT_MASK)) { | |
a433686c AA |
2546 | if (np->driver_data & DEV_HAS_GEAR_MODE) |
2547 | nv_gear_backoff_reseed(dev); | |
2548 | else | |
2549 | nv_legacybackoff_reseed(dev); | |
2550 | } | |
674aee3b | 2551 | } else { |
efd0bf97 DM |
2552 | u64_stats_update_begin(&np->swstats_tx_syncp); |
2553 | np->stat_tx_packets++; | |
2554 | np->stat_tx_bytes += np->get_tx_ctx->skb->len; | |
2555 | u64_stats_update_end(&np->swstats_tx_syncp); | |
a433686c AA |
2556 | } |
2557 | ||
b8bfca94 | 2558 | bytes_cleaned += np->get_tx_ctx->skb->len; |
445583b8 AA |
2559 | dev_kfree_skb_any(np->get_tx_ctx->skb); |
2560 | np->get_tx_ctx->skb = NULL; | |
33912e72 | 2561 | tx_work++; |
3b446c3e | 2562 | |
78aea4fc | 2563 | if (np->tx_limit) |
3b446c3e | 2564 | nv_tx_flip_ownership(dev); |
761fcd9e | 2565 | } |
b8bfca94 | 2566 | |
445583b8 | 2567 | if (unlikely(np->get_tx.ex++ == np->last_tx.ex)) |
86b22b0d | 2568 | np->get_tx.ex = np->first_tx.ex; |
445583b8 | 2569 | if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx)) |
761fcd9e | 2570 | np->get_tx_ctx = np->first_tx_ctx; |
1da177e4 | 2571 | } |
7505afe2 IM |
2572 | |
2573 | netdev_completed_queue(np->dev, tx_work, bytes_cleaned); | |
2574 | ||
445583b8 | 2575 | if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) { |
aaa37d2d | 2576 | np->tx_stop = 0; |
1da177e4 | 2577 | netif_wake_queue(dev); |
aaa37d2d | 2578 | } |
33912e72 | 2579 | return tx_work; |
1da177e4 LT |
2580 | } |
2581 | ||
2582 | /* | |
2583 | * nv_tx_timeout: dev->tx_timeout function | |
932ff279 | 2584 | * Called with netif_tx_lock held. |
1da177e4 LT |
2585 | */ |
2586 | static void nv_tx_timeout(struct net_device *dev) | |
2587 | { | |
ac9c1897 | 2588 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 2589 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 | 2590 | u32 status; |
8f955d7f AA |
2591 | union ring_type put_tx; |
2592 | int saved_tx_limit; | |
d33a73c8 AA |
2593 | |
2594 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
2595 | status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; | |
2596 | else | |
2597 | status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; | |
1da177e4 | 2598 | |
1ec4f2d3 | 2599 | netdev_warn(dev, "Got tx_timeout. irq status: %08x\n", status); |
1da177e4 | 2600 | |
1ec4f2d3 SN |
2601 | if (unlikely(debug_tx_timeout)) { |
2602 | int i; | |
2603 | ||
2604 | netdev_info(dev, "Ring at %lx\n", (unsigned long)np->ring_addr); | |
2605 | netdev_info(dev, "Dumping tx registers\n"); | |
2606 | for (i = 0; i <= np->register_size; i += 32) { | |
1d397f36 | 2607 | netdev_info(dev, |
1ec4f2d3 SN |
2608 | "%3x: %08x %08x %08x %08x " |
2609 | "%08x %08x %08x %08x\n", | |
1d397f36 | 2610 | i, |
1ec4f2d3 SN |
2611 | readl(base + i + 0), readl(base + i + 4), |
2612 | readl(base + i + 8), readl(base + i + 12), | |
2613 | readl(base + i + 16), readl(base + i + 20), | |
2614 | readl(base + i + 24), readl(base + i + 28)); | |
2615 | } | |
2616 | netdev_info(dev, "Dumping tx ring\n"); | |
2617 | for (i = 0; i < np->tx_ring_size; i += 4) { | |
2618 | if (!nv_optimized(np)) { | |
2619 | netdev_info(dev, | |
2620 | "%03x: %08x %08x // %08x %08x " | |
2621 | "// %08x %08x // %08x %08x\n", | |
2622 | i, | |
2623 | le32_to_cpu(np->tx_ring.orig[i].buf), | |
2624 | le32_to_cpu(np->tx_ring.orig[i].flaglen), | |
2625 | le32_to_cpu(np->tx_ring.orig[i+1].buf), | |
2626 | le32_to_cpu(np->tx_ring.orig[i+1].flaglen), | |
2627 | le32_to_cpu(np->tx_ring.orig[i+2].buf), | |
2628 | le32_to_cpu(np->tx_ring.orig[i+2].flaglen), | |
2629 | le32_to_cpu(np->tx_ring.orig[i+3].buf), | |
2630 | le32_to_cpu(np->tx_ring.orig[i+3].flaglen)); | |
2631 | } else { | |
2632 | netdev_info(dev, | |
2633 | "%03x: %08x %08x %08x " | |
2634 | "// %08x %08x %08x " | |
2635 | "// %08x %08x %08x " | |
2636 | "// %08x %08x %08x\n", | |
2637 | i, | |
2638 | le32_to_cpu(np->tx_ring.ex[i].bufhigh), | |
2639 | le32_to_cpu(np->tx_ring.ex[i].buflow), | |
2640 | le32_to_cpu(np->tx_ring.ex[i].flaglen), | |
2641 | le32_to_cpu(np->tx_ring.ex[i+1].bufhigh), | |
2642 | le32_to_cpu(np->tx_ring.ex[i+1].buflow), | |
2643 | le32_to_cpu(np->tx_ring.ex[i+1].flaglen), | |
2644 | le32_to_cpu(np->tx_ring.ex[i+2].bufhigh), | |
2645 | le32_to_cpu(np->tx_ring.ex[i+2].buflow), | |
2646 | le32_to_cpu(np->tx_ring.ex[i+2].flaglen), | |
2647 | le32_to_cpu(np->tx_ring.ex[i+3].bufhigh), | |
2648 | le32_to_cpu(np->tx_ring.ex[i+3].buflow), | |
2649 | le32_to_cpu(np->tx_ring.ex[i+3].flaglen)); | |
2650 | } | |
c2dba06d MS |
2651 | } |
2652 | } | |
2653 | ||
1da177e4 LT |
2654 | spin_lock_irq(&np->lock); |
2655 | ||
2656 | /* 1) stop tx engine */ | |
2657 | nv_stop_tx(dev); | |
2658 | ||
8f955d7f AA |
2659 | /* 2) complete any outstanding tx and do not give HW any limited tx pkts */ |
2660 | saved_tx_limit = np->tx_limit; | |
2661 | np->tx_limit = 0; /* prevent giving HW any limited pkts */ | |
2662 | np->tx_stop = 0; /* prevent waking tx queue */ | |
36b30ea9 | 2663 | if (!nv_optimized(np)) |
33912e72 | 2664 | nv_tx_done(dev, np->tx_ring_size); |
86b22b0d | 2665 | else |
4e16ed1b | 2666 | nv_tx_done_optimized(dev, np->tx_ring_size); |
1da177e4 | 2667 | |
25985edc | 2668 | /* save current HW position */ |
8f955d7f AA |
2669 | if (np->tx_change_owner) |
2670 | put_tx.ex = np->tx_change_owner->first_tx_desc; | |
2671 | else | |
2672 | put_tx = np->put_tx; | |
1da177e4 | 2673 | |
8f955d7f AA |
2674 | /* 3) clear all tx state */ |
2675 | nv_drain_tx(dev); | |
2676 | nv_init_tx(dev); | |
2677 | ||
2678 | /* 4) restore state to current HW position */ | |
2679 | np->get_tx = np->put_tx = put_tx; | |
2680 | np->tx_limit = saved_tx_limit; | |
3ba4d093 | 2681 | |
8f955d7f | 2682 | /* 5) restart tx engine */ |
1da177e4 | 2683 | nv_start_tx(dev); |
8f955d7f | 2684 | netif_wake_queue(dev); |
1da177e4 LT |
2685 | spin_unlock_irq(&np->lock); |
2686 | } | |
2687 | ||
22c6d143 MS |
2688 | /* |
2689 | * Called when the nic notices a mismatch between the actual data len on the | |
2690 | * wire and the len indicated in the 802 header | |
2691 | */ | |
2692 | static int nv_getlen(struct net_device *dev, void *packet, int datalen) | |
2693 | { | |
2694 | int hdrlen; /* length of the 802 header */ | |
2695 | int protolen; /* length as stored in the proto field */ | |
2696 | ||
2697 | /* 1) calculate len according to header */ | |
78aea4fc SJ |
2698 | if (((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) { |
2699 | protolen = ntohs(((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto); | |
22c6d143 MS |
2700 | hdrlen = VLAN_HLEN; |
2701 | } else { | |
78aea4fc | 2702 | protolen = ntohs(((struct ethhdr *)packet)->h_proto); |
22c6d143 MS |
2703 | hdrlen = ETH_HLEN; |
2704 | } | |
22c6d143 MS |
2705 | if (protolen > ETH_DATA_LEN) |
2706 | return datalen; /* Value in proto field not a len, no checks possible */ | |
2707 | ||
2708 | protolen += hdrlen; | |
2709 | /* consistency checks: */ | |
2710 | if (datalen > ETH_ZLEN) { | |
2711 | if (datalen >= protolen) { | |
2712 | /* more data on wire than in 802 header, trim of | |
2713 | * additional data. | |
2714 | */ | |
22c6d143 MS |
2715 | return protolen; |
2716 | } else { | |
2717 | /* less data on wire than mentioned in header. | |
2718 | * Discard the packet. | |
2719 | */ | |
22c6d143 MS |
2720 | return -1; |
2721 | } | |
2722 | } else { | |
2723 | /* short packet. Accept only if 802 values are also short */ | |
2724 | if (protolen > ETH_ZLEN) { | |
22c6d143 MS |
2725 | return -1; |
2726 | } | |
22c6d143 MS |
2727 | return datalen; |
2728 | } | |
2729 | } | |
2730 | ||
e27cdba5 | 2731 | static int nv_rx_process(struct net_device *dev, int limit) |
1da177e4 | 2732 | { |
ac9c1897 | 2733 | struct fe_priv *np = netdev_priv(dev); |
f82a9352 | 2734 | u32 flags; |
bcb5febb | 2735 | int rx_work = 0; |
b01867cb AA |
2736 | struct sk_buff *skb; |
2737 | int len; | |
1da177e4 | 2738 | |
78aea4fc | 2739 | while ((np->get_rx.orig != np->put_rx.orig) && |
b01867cb | 2740 | !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) && |
bcb5febb | 2741 | (rx_work < limit)) { |
1da177e4 | 2742 | |
1da177e4 LT |
2743 | /* |
2744 | * the packet is for us - immediately tear down the pci mapping. | |
2745 | * TODO: check if a prefetch of the first cacheline improves | |
2746 | * the performance. | |
2747 | */ | |
761fcd9e AA |
2748 | pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma, |
2749 | np->get_rx_ctx->dma_len, | |
1da177e4 | 2750 | PCI_DMA_FROMDEVICE); |
0d63fb32 AA |
2751 | skb = np->get_rx_ctx->skb; |
2752 | np->get_rx_ctx->skb = NULL; | |
1da177e4 | 2753 | |
1da177e4 LT |
2754 | /* look at what we actually got: */ |
2755 | if (np->desc_ver == DESC_VER_1) { | |
b01867cb AA |
2756 | if (likely(flags & NV_RX_DESCRIPTORVALID)) { |
2757 | len = flags & LEN_MASK_V1; | |
2758 | if (unlikely(flags & NV_RX_ERROR)) { | |
1ef6841b | 2759 | if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) { |
b01867cb AA |
2760 | len = nv_getlen(dev, skb->data, len); |
2761 | if (len < 0) { | |
b01867cb AA |
2762 | dev_kfree_skb(skb); |
2763 | goto next_pkt; | |
2764 | } | |
2765 | } | |
2766 | /* framing errors are soft errors */ | |
1ef6841b | 2767 | else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) { |
78aea4fc | 2768 | if (flags & NV_RX_SUBSTRACT1) |
b01867cb | 2769 | len--; |
b01867cb AA |
2770 | } |
2771 | /* the rest are hard errors */ | |
2772 | else { | |
f5d827ae | 2773 | if (flags & NV_RX_MISSEDFRAME) { |
2774 | u64_stats_update_begin(&np->swstats_rx_syncp); | |
2775 | np->stat_rx_missed_errors++; | |
2776 | u64_stats_update_end(&np->swstats_rx_syncp); | |
2777 | } | |
0d63fb32 | 2778 | dev_kfree_skb(skb); |
a971c324 AA |
2779 | goto next_pkt; |
2780 | } | |
2781 | } | |
b01867cb | 2782 | } else { |
0d63fb32 | 2783 | dev_kfree_skb(skb); |
1da177e4 | 2784 | goto next_pkt; |
0d63fb32 | 2785 | } |
b01867cb AA |
2786 | } else { |
2787 | if (likely(flags & NV_RX2_DESCRIPTORVALID)) { | |
2788 | len = flags & LEN_MASK_V2; | |
2789 | if (unlikely(flags & NV_RX2_ERROR)) { | |
1ef6841b | 2790 | if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { |
b01867cb AA |
2791 | len = nv_getlen(dev, skb->data, len); |
2792 | if (len < 0) { | |
b01867cb AA |
2793 | dev_kfree_skb(skb); |
2794 | goto next_pkt; | |
2795 | } | |
2796 | } | |
2797 | /* framing errors are soft errors */ | |
1ef6841b | 2798 | else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) { |
78aea4fc | 2799 | if (flags & NV_RX2_SUBSTRACT1) |
b01867cb | 2800 | len--; |
b01867cb AA |
2801 | } |
2802 | /* the rest are hard errors */ | |
2803 | else { | |
0d63fb32 | 2804 | dev_kfree_skb(skb); |
a971c324 AA |
2805 | goto next_pkt; |
2806 | } | |
2807 | } | |
bfaffe8f AA |
2808 | if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */ |
2809 | ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */ | |
0d63fb32 | 2810 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
b01867cb AA |
2811 | } else { |
2812 | dev_kfree_skb(skb); | |
2813 | goto next_pkt; | |
1da177e4 LT |
2814 | } |
2815 | } | |
2816 | /* got a valid packet - forward it to the network core */ | |
1da177e4 LT |
2817 | skb_put(skb, len); |
2818 | skb->protocol = eth_type_trans(skb, dev); | |
53f224cc | 2819 | napi_gro_receive(&np->napi, skb); |
f5d827ae | 2820 | u64_stats_update_begin(&np->swstats_rx_syncp); |
2821 | np->stat_rx_packets++; | |
2822 | np->stat_rx_bytes += len; | |
2823 | u64_stats_update_end(&np->swstats_rx_syncp); | |
1da177e4 | 2824 | next_pkt: |
b01867cb | 2825 | if (unlikely(np->get_rx.orig++ == np->last_rx.orig)) |
86b22b0d | 2826 | np->get_rx.orig = np->first_rx.orig; |
b01867cb | 2827 | if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx)) |
86b22b0d | 2828 | np->get_rx_ctx = np->first_rx_ctx; |
bcb5febb IM |
2829 | |
2830 | rx_work++; | |
86b22b0d AA |
2831 | } |
2832 | ||
bcb5febb | 2833 | return rx_work; |
86b22b0d AA |
2834 | } |
2835 | ||
2836 | static int nv_rx_process_optimized(struct net_device *dev, int limit) | |
2837 | { | |
2838 | struct fe_priv *np = netdev_priv(dev); | |
2839 | u32 flags; | |
2840 | u32 vlanflags = 0; | |
c1b7151a | 2841 | int rx_work = 0; |
b01867cb AA |
2842 | struct sk_buff *skb; |
2843 | int len; | |
86b22b0d | 2844 | |
78aea4fc | 2845 | while ((np->get_rx.ex != np->put_rx.ex) && |
b01867cb | 2846 | !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) && |
c1b7151a | 2847 | (rx_work < limit)) { |
86b22b0d | 2848 | |
86b22b0d AA |
2849 | /* |
2850 | * the packet is for us - immediately tear down the pci mapping. | |
2851 | * TODO: check if a prefetch of the first cacheline improves | |
2852 | * the performance. | |
2853 | */ | |
2854 | pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma, | |
2855 | np->get_rx_ctx->dma_len, | |
2856 | PCI_DMA_FROMDEVICE); | |
2857 | skb = np->get_rx_ctx->skb; | |
2858 | np->get_rx_ctx->skb = NULL; | |
2859 | ||
86b22b0d | 2860 | /* look at what we actually got: */ |
b01867cb AA |
2861 | if (likely(flags & NV_RX2_DESCRIPTORVALID)) { |
2862 | len = flags & LEN_MASK_V2; | |
2863 | if (unlikely(flags & NV_RX2_ERROR)) { | |
1ef6841b | 2864 | if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { |
b01867cb AA |
2865 | len = nv_getlen(dev, skb->data, len); |
2866 | if (len < 0) { | |
b01867cb AA |
2867 | dev_kfree_skb(skb); |
2868 | goto next_pkt; | |
2869 | } | |
2870 | } | |
2871 | /* framing errors are soft errors */ | |
1ef6841b | 2872 | else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) { |
78aea4fc | 2873 | if (flags & NV_RX2_SUBSTRACT1) |
b01867cb | 2874 | len--; |
b01867cb AA |
2875 | } |
2876 | /* the rest are hard errors */ | |
2877 | else { | |
86b22b0d AA |
2878 | dev_kfree_skb(skb); |
2879 | goto next_pkt; | |
2880 | } | |
2881 | } | |
b01867cb | 2882 | |
bfaffe8f AA |
2883 | if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */ |
2884 | ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */ | |
86b22b0d | 2885 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
b01867cb AA |
2886 | |
2887 | /* got a valid packet - forward it to the network core */ | |
2888 | skb_put(skb, len); | |
2889 | skb->protocol = eth_type_trans(skb, dev); | |
2890 | prefetch(skb->data); | |
2891 | ||
3326c784 | 2892 | vlanflags = le32_to_cpu(np->get_rx.ex->buflow); |
0891b0e0 JP |
2893 | |
2894 | /* | |
2895 | * There's need to check for NETIF_F_HW_VLAN_RX here. | |
2896 | * Even if vlan rx accel is disabled, | |
2897 | * NV_RX3_VLAN_TAG_PRESENT is pseudo randomly set. | |
2898 | */ | |
2899 | if (dev->features & NETIF_F_HW_VLAN_RX && | |
2900 | vlanflags & NV_RX3_VLAN_TAG_PRESENT) { | |
3326c784 JP |
2901 | u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK; |
2902 | ||
2903 | __vlan_hwaccel_put_tag(skb, vid); | |
b01867cb | 2904 | } |
3326c784 | 2905 | napi_gro_receive(&np->napi, skb); |
f5d827ae | 2906 | u64_stats_update_begin(&np->swstats_rx_syncp); |
2907 | np->stat_rx_packets++; | |
2908 | np->stat_rx_bytes += len; | |
2909 | u64_stats_update_end(&np->swstats_rx_syncp); | |
b01867cb AA |
2910 | } else { |
2911 | dev_kfree_skb(skb); | |
2912 | } | |
86b22b0d | 2913 | next_pkt: |
b01867cb | 2914 | if (unlikely(np->get_rx.ex++ == np->last_rx.ex)) |
86b22b0d | 2915 | np->get_rx.ex = np->first_rx.ex; |
b01867cb | 2916 | if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx)) |
761fcd9e | 2917 | np->get_rx_ctx = np->first_rx_ctx; |
c1b7151a IM |
2918 | |
2919 | rx_work++; | |
1da177e4 | 2920 | } |
e27cdba5 | 2921 | |
c1b7151a | 2922 | return rx_work; |
1da177e4 LT |
2923 | } |
2924 | ||
d81c0983 MS |
2925 | static void set_bufsize(struct net_device *dev) |
2926 | { | |
2927 | struct fe_priv *np = netdev_priv(dev); | |
2928 | ||
2929 | if (dev->mtu <= ETH_DATA_LEN) | |
2930 | np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS; | |
2931 | else | |
2932 | np->rx_buf_sz = dev->mtu + NV_RX_HEADERS; | |
2933 | } | |
2934 | ||
1da177e4 LT |
2935 | /* |
2936 | * nv_change_mtu: dev->change_mtu function | |
2937 | * Called with dev_base_lock held for read. | |
2938 | */ | |
2939 | static int nv_change_mtu(struct net_device *dev, int new_mtu) | |
2940 | { | |
ac9c1897 | 2941 | struct fe_priv *np = netdev_priv(dev); |
d81c0983 MS |
2942 | int old_mtu; |
2943 | ||
2944 | if (new_mtu < 64 || new_mtu > np->pkt_limit) | |
1da177e4 | 2945 | return -EINVAL; |
d81c0983 MS |
2946 | |
2947 | old_mtu = dev->mtu; | |
1da177e4 | 2948 | dev->mtu = new_mtu; |
d81c0983 MS |
2949 | |
2950 | /* return early if the buffer sizes will not change */ | |
2951 | if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN) | |
2952 | return 0; | |
2953 | if (old_mtu == new_mtu) | |
2954 | return 0; | |
2955 | ||
2956 | /* synchronized against open : rtnl_lock() held by caller */ | |
2957 | if (netif_running(dev)) { | |
25097d4b | 2958 | u8 __iomem *base = get_hwbase(dev); |
d81c0983 MS |
2959 | /* |
2960 | * It seems that the nic preloads valid ring entries into an | |
2961 | * internal buffer. The procedure for flushing everything is | |
2962 | * guessed, there is probably a simpler approach. | |
2963 | * Changing the MTU is a rare event, it shouldn't matter. | |
2964 | */ | |
84b3932b | 2965 | nv_disable_irq(dev); |
08d93575 | 2966 | nv_napi_disable(dev); |
932ff279 | 2967 | netif_tx_lock_bh(dev); |
e308a5d8 | 2968 | netif_addr_lock(dev); |
d81c0983 MS |
2969 | spin_lock(&np->lock); |
2970 | /* stop engines */ | |
36b30ea9 | 2971 | nv_stop_rxtx(dev); |
d81c0983 MS |
2972 | nv_txrx_reset(dev); |
2973 | /* drain rx queue */ | |
36b30ea9 | 2974 | nv_drain_rxtx(dev); |
d81c0983 | 2975 | /* reinit driver view of the rx queue */ |
d81c0983 | 2976 | set_bufsize(dev); |
eafa59f6 | 2977 | if (nv_init_ring(dev)) { |
d81c0983 MS |
2978 | if (!np->in_shutdown) |
2979 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
2980 | } | |
2981 | /* reinit nic view of the rx queue */ | |
2982 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
0832b25a | 2983 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
78aea4fc | 2984 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
d81c0983 MS |
2985 | base + NvRegRingSizes); |
2986 | pci_push(base); | |
8a4ae7f2 | 2987 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); |
d81c0983 MS |
2988 | pci_push(base); |
2989 | ||
2990 | /* restart rx engine */ | |
36b30ea9 | 2991 | nv_start_rxtx(dev); |
d81c0983 | 2992 | spin_unlock(&np->lock); |
e308a5d8 | 2993 | netif_addr_unlock(dev); |
932ff279 | 2994 | netif_tx_unlock_bh(dev); |
08d93575 | 2995 | nv_napi_enable(dev); |
84b3932b | 2996 | nv_enable_irq(dev); |
d81c0983 | 2997 | } |
1da177e4 LT |
2998 | return 0; |
2999 | } | |
3000 | ||
72b31782 MS |
3001 | static void nv_copy_mac_to_hw(struct net_device *dev) |
3002 | { | |
25097d4b | 3003 | u8 __iomem *base = get_hwbase(dev); |
72b31782 MS |
3004 | u32 mac[2]; |
3005 | ||
3006 | mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) + | |
3007 | (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24); | |
3008 | mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8); | |
3009 | ||
3010 | writel(mac[0], base + NvRegMacAddrA); | |
3011 | writel(mac[1], base + NvRegMacAddrB); | |
3012 | } | |
3013 | ||
3014 | /* | |
3015 | * nv_set_mac_address: dev->set_mac_address function | |
3016 | * Called with rtnl_lock() held. | |
3017 | */ | |
3018 | static int nv_set_mac_address(struct net_device *dev, void *addr) | |
3019 | { | |
ac9c1897 | 3020 | struct fe_priv *np = netdev_priv(dev); |
78aea4fc | 3021 | struct sockaddr *macaddr = (struct sockaddr *)addr; |
72b31782 | 3022 | |
f82a9352 | 3023 | if (!is_valid_ether_addr(macaddr->sa_data)) |
72b31782 MS |
3024 | return -EADDRNOTAVAIL; |
3025 | ||
3026 | /* synchronized against open : rtnl_lock() held by caller */ | |
3027 | memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN); | |
7ce5d222 | 3028 | dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
72b31782 MS |
3029 | |
3030 | if (netif_running(dev)) { | |
932ff279 | 3031 | netif_tx_lock_bh(dev); |
e308a5d8 | 3032 | netif_addr_lock(dev); |
72b31782 MS |
3033 | spin_lock_irq(&np->lock); |
3034 | ||
3035 | /* stop rx engine */ | |
3036 | nv_stop_rx(dev); | |
3037 | ||
3038 | /* set mac address */ | |
3039 | nv_copy_mac_to_hw(dev); | |
3040 | ||
3041 | /* restart rx engine */ | |
3042 | nv_start_rx(dev); | |
3043 | spin_unlock_irq(&np->lock); | |
e308a5d8 | 3044 | netif_addr_unlock(dev); |
932ff279 | 3045 | netif_tx_unlock_bh(dev); |
72b31782 MS |
3046 | } else { |
3047 | nv_copy_mac_to_hw(dev); | |
3048 | } | |
3049 | return 0; | |
3050 | } | |
3051 | ||
1da177e4 LT |
3052 | /* |
3053 | * nv_set_multicast: dev->set_multicast function | |
932ff279 | 3054 | * Called with netif_tx_lock held. |
1da177e4 LT |
3055 | */ |
3056 | static void nv_set_multicast(struct net_device *dev) | |
3057 | { | |
ac9c1897 | 3058 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
3059 | u8 __iomem *base = get_hwbase(dev); |
3060 | u32 addr[2]; | |
3061 | u32 mask[2]; | |
b6d0773f | 3062 | u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX; |
1da177e4 LT |
3063 | |
3064 | memset(addr, 0, sizeof(addr)); | |
3065 | memset(mask, 0, sizeof(mask)); | |
3066 | ||
3067 | if (dev->flags & IFF_PROMISC) { | |
b6d0773f | 3068 | pff |= NVREG_PFF_PROMISC; |
1da177e4 | 3069 | } else { |
b6d0773f | 3070 | pff |= NVREG_PFF_MYADDR; |
1da177e4 | 3071 | |
48e2f183 | 3072 | if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) { |
1da177e4 LT |
3073 | u32 alwaysOff[2]; |
3074 | u32 alwaysOn[2]; | |
3075 | ||
3076 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff; | |
3077 | if (dev->flags & IFF_ALLMULTI) { | |
3078 | alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0; | |
3079 | } else { | |
22bedad3 | 3080 | struct netdev_hw_addr *ha; |
1da177e4 | 3081 | |
22bedad3 | 3082 | netdev_for_each_mc_addr(ha, dev) { |
e45a6187 | 3083 | unsigned char *hw_addr = ha->addr; |
1da177e4 | 3084 | u32 a, b; |
22bedad3 | 3085 | |
e45a6187 | 3086 | a = le32_to_cpu(*(__le32 *) hw_addr); |
3087 | b = le16_to_cpu(*(__le16 *) (&hw_addr[4])); | |
1da177e4 LT |
3088 | alwaysOn[0] &= a; |
3089 | alwaysOff[0] &= ~a; | |
3090 | alwaysOn[1] &= b; | |
3091 | alwaysOff[1] &= ~b; | |
1da177e4 LT |
3092 | } |
3093 | } | |
3094 | addr[0] = alwaysOn[0]; | |
3095 | addr[1] = alwaysOn[1]; | |
3096 | mask[0] = alwaysOn[0] | alwaysOff[0]; | |
3097 | mask[1] = alwaysOn[1] | alwaysOff[1]; | |
bb9a4fd1 AA |
3098 | } else { |
3099 | mask[0] = NVREG_MCASTMASKA_NONE; | |
3100 | mask[1] = NVREG_MCASTMASKB_NONE; | |
1da177e4 LT |
3101 | } |
3102 | } | |
3103 | addr[0] |= NVREG_MCASTADDRA_FORCE; | |
3104 | pff |= NVREG_PFF_ALWAYS; | |
3105 | spin_lock_irq(&np->lock); | |
3106 | nv_stop_rx(dev); | |
3107 | writel(addr[0], base + NvRegMulticastAddrA); | |
3108 | writel(addr[1], base + NvRegMulticastAddrB); | |
3109 | writel(mask[0], base + NvRegMulticastMaskA); | |
3110 | writel(mask[1], base + NvRegMulticastMaskB); | |
3111 | writel(pff, base + NvRegPacketFilterFlags); | |
1da177e4 LT |
3112 | nv_start_rx(dev); |
3113 | spin_unlock_irq(&np->lock); | |
3114 | } | |
3115 | ||
c7985051 | 3116 | static void nv_update_pause(struct net_device *dev, u32 pause_flags) |
b6d0773f AA |
3117 | { |
3118 | struct fe_priv *np = netdev_priv(dev); | |
3119 | u8 __iomem *base = get_hwbase(dev); | |
3120 | ||
3121 | np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE); | |
3122 | ||
3123 | if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) { | |
3124 | u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX; | |
3125 | if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) { | |
3126 | writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags); | |
3127 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3128 | } else { | |
3129 | writel(pff, base + NvRegPacketFilterFlags); | |
3130 | } | |
3131 | } | |
3132 | if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) { | |
3133 | u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX; | |
3134 | if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) { | |
5289b4c4 AA |
3135 | u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1; |
3136 | if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) | |
3137 | pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2; | |
9a33e883 | 3138 | if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3) { |
5289b4c4 | 3139 | pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3; |
9a33e883 AA |
3140 | /* limit the number of tx pause frames to a default of 8 */ |
3141 | writel(readl(base + NvRegTxPauseFrameLimit)|NVREG_TX_PAUSEFRAMELIMIT_ENABLE, base + NvRegTxPauseFrameLimit); | |
3142 | } | |
5289b4c4 | 3143 | writel(pause_enable, base + NvRegTxPauseFrame); |
b6d0773f AA |
3144 | writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1); |
3145 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3146 | } else { | |
3147 | writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); | |
3148 | writel(regmisc, base + NvRegMisc1); | |
3149 | } | |
3150 | } | |
3151 | } | |
3152 | ||
e19df76a SH |
3153 | static void nv_force_linkspeed(struct net_device *dev, int speed, int duplex) |
3154 | { | |
3155 | struct fe_priv *np = netdev_priv(dev); | |
3156 | u8 __iomem *base = get_hwbase(dev); | |
3157 | u32 phyreg, txreg; | |
3158 | int mii_status; | |
3159 | ||
3160 | np->linkspeed = NVREG_LINKSPEED_FORCE|speed; | |
3161 | np->duplex = duplex; | |
3162 | ||
3163 | /* see if gigabit phy */ | |
3164 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
3165 | if (mii_status & PHY_GIGABIT) { | |
3166 | np->gigabit = PHY_GIGABIT; | |
3167 | phyreg = readl(base + NvRegSlotTime); | |
3168 | phyreg &= ~(0x3FF00); | |
3169 | if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) | |
3170 | phyreg |= NVREG_SLOTTIME_10_100_FULL; | |
3171 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100) | |
3172 | phyreg |= NVREG_SLOTTIME_10_100_FULL; | |
3173 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000) | |
3174 | phyreg |= NVREG_SLOTTIME_1000_FULL; | |
3175 | writel(phyreg, base + NvRegSlotTime); | |
3176 | } | |
3177 | ||
3178 | phyreg = readl(base + NvRegPhyInterface); | |
3179 | phyreg &= ~(PHY_HALF|PHY_100|PHY_1000); | |
3180 | if (np->duplex == 0) | |
3181 | phyreg |= PHY_HALF; | |
3182 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100) | |
3183 | phyreg |= PHY_100; | |
3184 | else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == | |
3185 | NVREG_LINKSPEED_1000) | |
3186 | phyreg |= PHY_1000; | |
3187 | writel(phyreg, base + NvRegPhyInterface); | |
3188 | ||
3189 | if (phyreg & PHY_RGMII) { | |
3190 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == | |
3191 | NVREG_LINKSPEED_1000) | |
3192 | txreg = NVREG_TX_DEFERRAL_RGMII_1000; | |
3193 | else | |
3194 | txreg = NVREG_TX_DEFERRAL_RGMII_10_100; | |
3195 | } else { | |
3196 | txreg = NVREG_TX_DEFERRAL_DEFAULT; | |
3197 | } | |
3198 | writel(txreg, base + NvRegTxDeferral); | |
3199 | ||
3200 | if (np->desc_ver == DESC_VER_1) { | |
3201 | txreg = NVREG_TX_WM_DESC1_DEFAULT; | |
3202 | } else { | |
3203 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == | |
3204 | NVREG_LINKSPEED_1000) | |
3205 | txreg = NVREG_TX_WM_DESC2_3_1000; | |
3206 | else | |
3207 | txreg = NVREG_TX_WM_DESC2_3_DEFAULT; | |
3208 | } | |
3209 | writel(txreg, base + NvRegTxWatermark); | |
3210 | ||
3211 | writel(NVREG_MISC1_FORCE | (np->duplex ? 0 : NVREG_MISC1_HD), | |
3212 | base + NvRegMisc1); | |
3213 | pci_push(base); | |
3214 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
3215 | pci_push(base); | |
3216 | ||
3217 | return; | |
3218 | } | |
3219 | ||
4ea7f299 | 3220 | /** |
49ce9c2c | 3221 | * nv_update_linkspeed - Setup the MAC according to the link partner |
4ea7f299 AA |
3222 | * @dev: Network device to be configured |
3223 | * | |
3224 | * The function queries the PHY and checks if there is a link partner. | |
3225 | * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is | |
3226 | * set to 10 MBit HD. | |
3227 | * | |
3228 | * The function returns 0 if there is no link partner and 1 if there is | |
3229 | * a good link partner. | |
3230 | */ | |
1da177e4 LT |
3231 | static int nv_update_linkspeed(struct net_device *dev) |
3232 | { | |
ac9c1897 | 3233 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 3234 | u8 __iomem *base = get_hwbase(dev); |
eb91f61b AA |
3235 | int adv = 0; |
3236 | int lpa = 0; | |
3237 | int adv_lpa, adv_pause, lpa_pause; | |
1da177e4 LT |
3238 | int newls = np->linkspeed; |
3239 | int newdup = np->duplex; | |
3240 | int mii_status; | |
e19df76a | 3241 | u32 bmcr; |
1da177e4 | 3242 | int retval = 0; |
9744e218 | 3243 | u32 control_1000, status_1000, phyreg, pause_flags, txreg; |
b2976d23 | 3244 | u32 txrxFlags = 0; |
fd9b558c | 3245 | u32 phy_exp; |
1da177e4 | 3246 | |
e19df76a SH |
3247 | /* If device loopback is enabled, set carrier on and enable max link |
3248 | * speed. | |
3249 | */ | |
3250 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
3251 | if (bmcr & BMCR_LOOPBACK) { | |
3252 | if (netif_running(dev)) { | |
3253 | nv_force_linkspeed(dev, NVREG_LINKSPEED_1000, 1); | |
3254 | if (!netif_carrier_ok(dev)) | |
3255 | netif_carrier_on(dev); | |
3256 | } | |
3257 | return 1; | |
3258 | } | |
3259 | ||
1da177e4 LT |
3260 | /* BMSR_LSTATUS is latched, read it twice: |
3261 | * we want the current value. | |
3262 | */ | |
3263 | mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
3264 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
3265 | ||
3266 | if (!(mii_status & BMSR_LSTATUS)) { | |
1da177e4 LT |
3267 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3268 | newdup = 0; | |
3269 | retval = 0; | |
3270 | goto set_speed; | |
3271 | } | |
3272 | ||
3273 | if (np->autoneg == 0) { | |
1da177e4 LT |
3274 | if (np->fixed_mode & LPA_100FULL) { |
3275 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
3276 | newdup = 1; | |
3277 | } else if (np->fixed_mode & LPA_100HALF) { | |
3278 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; | |
3279 | newdup = 0; | |
3280 | } else if (np->fixed_mode & LPA_10FULL) { | |
3281 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3282 | newdup = 1; | |
3283 | } else { | |
3284 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3285 | newdup = 0; | |
3286 | } | |
3287 | retval = 1; | |
3288 | goto set_speed; | |
3289 | } | |
3290 | /* check auto negotiation is complete */ | |
3291 | if (!(mii_status & BMSR_ANEGCOMPLETE)) { | |
3292 | /* still in autonegotiation - configure nic for 10 MBit HD and wait. */ | |
3293 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
3294 | newdup = 0; | |
3295 | retval = 0; | |
1da177e4 LT |
3296 | goto set_speed; |
3297 | } | |
3298 | ||
b6d0773f AA |
3299 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); |
3300 | lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ); | |
b6d0773f | 3301 | |
1da177e4 LT |
3302 | retval = 1; |
3303 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b AA |
3304 | control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
3305 | status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ); | |
1da177e4 LT |
3306 | |
3307 | if ((control_1000 & ADVERTISE_1000FULL) && | |
3308 | (status_1000 & LPA_1000FULL)) { | |
1da177e4 LT |
3309 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000; |
3310 | newdup = 1; | |
3311 | goto set_speed; | |
3312 | } | |
3313 | } | |
3314 | ||
1da177e4 | 3315 | /* FIXME: handle parallel detection properly */ |
eb91f61b AA |
3316 | adv_lpa = lpa & adv; |
3317 | if (adv_lpa & LPA_100FULL) { | |
1da177e4 LT |
3318 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
3319 | newdup = 1; | |
eb91f61b | 3320 | } else if (adv_lpa & LPA_100HALF) { |
1da177e4 LT |
3321 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100; |
3322 | newdup = 0; | |
eb91f61b | 3323 | } else if (adv_lpa & LPA_10FULL) { |
1da177e4 LT |
3324 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3325 | newdup = 1; | |
eb91f61b | 3326 | } else if (adv_lpa & LPA_10HALF) { |
1da177e4 LT |
3327 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3328 | newdup = 0; | |
3329 | } else { | |
1da177e4 LT |
3330 | newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; |
3331 | newdup = 0; | |
3332 | } | |
3333 | ||
3334 | set_speed: | |
3335 | if (np->duplex == newdup && np->linkspeed == newls) | |
3336 | return retval; | |
3337 | ||
1da177e4 LT |
3338 | np->duplex = newdup; |
3339 | np->linkspeed = newls; | |
3340 | ||
b2976d23 AA |
3341 | /* The transmitter and receiver must be restarted for safe update */ |
3342 | if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) { | |
3343 | txrxFlags |= NV_RESTART_TX; | |
3344 | nv_stop_tx(dev); | |
3345 | } | |
3346 | if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) { | |
3347 | txrxFlags |= NV_RESTART_RX; | |
3348 | nv_stop_rx(dev); | |
3349 | } | |
3350 | ||
1da177e4 | 3351 | if (np->gigabit == PHY_GIGABIT) { |
a433686c | 3352 | phyreg = readl(base + NvRegSlotTime); |
1da177e4 | 3353 | phyreg &= ~(0x3FF00); |
a433686c AA |
3354 | if (((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) || |
3355 | ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)) | |
3356 | phyreg |= NVREG_SLOTTIME_10_100_FULL; | |
1da177e4 | 3357 | else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000) |
a433686c AA |
3358 | phyreg |= NVREG_SLOTTIME_1000_FULL; |
3359 | writel(phyreg, base + NvRegSlotTime); | |
1da177e4 LT |
3360 | } |
3361 | ||
3362 | phyreg = readl(base + NvRegPhyInterface); | |
3363 | phyreg &= ~(PHY_HALF|PHY_100|PHY_1000); | |
3364 | if (np->duplex == 0) | |
3365 | phyreg |= PHY_HALF; | |
3366 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100) | |
3367 | phyreg |= PHY_100; | |
3368 | else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) | |
3369 | phyreg |= PHY_1000; | |
3370 | writel(phyreg, base + NvRegPhyInterface); | |
3371 | ||
fd9b558c | 3372 | phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */ |
9744e218 | 3373 | if (phyreg & PHY_RGMII) { |
fd9b558c | 3374 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) { |
9744e218 | 3375 | txreg = NVREG_TX_DEFERRAL_RGMII_1000; |
fd9b558c AA |
3376 | } else { |
3377 | if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) { | |
3378 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10) | |
3379 | txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10; | |
3380 | else | |
3381 | txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100; | |
3382 | } else { | |
3383 | txreg = NVREG_TX_DEFERRAL_RGMII_10_100; | |
3384 | } | |
3385 | } | |
9744e218 | 3386 | } else { |
fd9b558c AA |
3387 | if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) |
3388 | txreg = NVREG_TX_DEFERRAL_MII_STRETCH; | |
3389 | else | |
3390 | txreg = NVREG_TX_DEFERRAL_DEFAULT; | |
9744e218 AA |
3391 | } |
3392 | writel(txreg, base + NvRegTxDeferral); | |
3393 | ||
95d161cb AA |
3394 | if (np->desc_ver == DESC_VER_1) { |
3395 | txreg = NVREG_TX_WM_DESC1_DEFAULT; | |
3396 | } else { | |
3397 | if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) | |
3398 | txreg = NVREG_TX_WM_DESC2_3_1000; | |
3399 | else | |
3400 | txreg = NVREG_TX_WM_DESC2_3_DEFAULT; | |
3401 | } | |
3402 | writel(txreg, base + NvRegTxWatermark); | |
3403 | ||
78aea4fc | 3404 | writel(NVREG_MISC1_FORCE | (np->duplex ? 0 : NVREG_MISC1_HD), |
1da177e4 LT |
3405 | base + NvRegMisc1); |
3406 | pci_push(base); | |
3407 | writel(np->linkspeed, base + NvRegLinkSpeed); | |
3408 | pci_push(base); | |
3409 | ||
b6d0773f AA |
3410 | pause_flags = 0; |
3411 | /* setup pause frame */ | |
eb91f61b | 3412 | if (np->duplex != 0) { |
b6d0773f | 3413 | if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) { |
78aea4fc SJ |
3414 | adv_pause = adv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
3415 | lpa_pause = lpa & (LPA_PAUSE_CAP | LPA_PAUSE_ASYM); | |
b6d0773f AA |
3416 | |
3417 | switch (adv_pause) { | |
f82a9352 | 3418 | case ADVERTISE_PAUSE_CAP: |
b6d0773f AA |
3419 | if (lpa_pause & LPA_PAUSE_CAP) { |
3420 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
3421 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
3422 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3423 | } | |
3424 | break; | |
f82a9352 | 3425 | case ADVERTISE_PAUSE_ASYM: |
78aea4fc | 3426 | if (lpa_pause == (LPA_PAUSE_CAP | LPA_PAUSE_ASYM)) |
b6d0773f | 3427 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; |
b6d0773f | 3428 | break; |
78aea4fc SJ |
3429 | case ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM: |
3430 | if (lpa_pause & LPA_PAUSE_CAP) { | |
b6d0773f AA |
3431 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
3432 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
3433 | pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
3434 | } | |
3435 | if (lpa_pause == LPA_PAUSE_ASYM) | |
b6d0773f | 3436 | pause_flags |= NV_PAUSEFRAME_RX_ENABLE; |
b6d0773f | 3437 | break; |
f3b197ac | 3438 | } |
eb91f61b | 3439 | } else { |
b6d0773f | 3440 | pause_flags = np->pause_flags; |
eb91f61b AA |
3441 | } |
3442 | } | |
b6d0773f | 3443 | nv_update_pause(dev, pause_flags); |
eb91f61b | 3444 | |
b2976d23 AA |
3445 | if (txrxFlags & NV_RESTART_TX) |
3446 | nv_start_tx(dev); | |
3447 | if (txrxFlags & NV_RESTART_RX) | |
3448 | nv_start_rx(dev); | |
3449 | ||
1da177e4 LT |
3450 | return retval; |
3451 | } | |
3452 | ||
3453 | static void nv_linkchange(struct net_device *dev) | |
3454 | { | |
3455 | if (nv_update_linkspeed(dev)) { | |
4ea7f299 | 3456 | if (!netif_carrier_ok(dev)) { |
1da177e4 | 3457 | netif_carrier_on(dev); |
1d397f36 | 3458 | netdev_info(dev, "link up\n"); |
88d7d8b0 | 3459 | nv_txrx_gate(dev, false); |
4ea7f299 | 3460 | nv_start_rx(dev); |
1da177e4 | 3461 | } |
1da177e4 LT |
3462 | } else { |
3463 | if (netif_carrier_ok(dev)) { | |
3464 | netif_carrier_off(dev); | |
1d397f36 | 3465 | netdev_info(dev, "link down\n"); |
88d7d8b0 | 3466 | nv_txrx_gate(dev, true); |
1da177e4 LT |
3467 | nv_stop_rx(dev); |
3468 | } | |
3469 | } | |
3470 | } | |
3471 | ||
3472 | static void nv_link_irq(struct net_device *dev) | |
3473 | { | |
3474 | u8 __iomem *base = get_hwbase(dev); | |
3475 | u32 miistat; | |
3476 | ||
3477 | miistat = readl(base + NvRegMIIStatus); | |
eb798428 | 3478 | writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus); |
1da177e4 LT |
3479 | |
3480 | if (miistat & (NVREG_MIISTAT_LINKCHANGE)) | |
3481 | nv_linkchange(dev); | |
1da177e4 LT |
3482 | } |
3483 | ||
4db0ee17 AA |
3484 | static void nv_msi_workaround(struct fe_priv *np) |
3485 | { | |
3486 | ||
3487 | /* Need to toggle the msi irq mask within the ethernet device, | |
3488 | * otherwise, future interrupts will not be detected. | |
3489 | */ | |
3490 | if (np->msi_flags & NV_MSI_ENABLED) { | |
3491 | u8 __iomem *base = np->base; | |
3492 | ||
3493 | writel(0, base + NvRegMSIIrqMask); | |
3494 | writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask); | |
3495 | } | |
3496 | } | |
3497 | ||
4145ade2 AA |
3498 | static inline int nv_change_interrupt_mode(struct net_device *dev, int total_work) |
3499 | { | |
3500 | struct fe_priv *np = netdev_priv(dev); | |
3501 | ||
3502 | if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC) { | |
3503 | if (total_work > NV_DYNAMIC_THRESHOLD) { | |
3504 | /* transition to poll based interrupts */ | |
3505 | np->quiet_count = 0; | |
3506 | if (np->irqmask != NVREG_IRQMASK_CPU) { | |
3507 | np->irqmask = NVREG_IRQMASK_CPU; | |
3508 | return 1; | |
3509 | } | |
3510 | } else { | |
3511 | if (np->quiet_count < NV_DYNAMIC_MAX_QUIET_COUNT) { | |
3512 | np->quiet_count++; | |
3513 | } else { | |
3514 | /* reached a period of low activity, switch | |
3515 | to per tx/rx packet interrupts */ | |
3516 | if (np->irqmask != NVREG_IRQMASK_THROUGHPUT) { | |
3517 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
3518 | return 1; | |
3519 | } | |
3520 | } | |
3521 | } | |
3522 | } | |
3523 | return 0; | |
3524 | } | |
3525 | ||
7d12e780 | 3526 | static irqreturn_t nv_nic_irq(int foo, void *data) |
1da177e4 LT |
3527 | { |
3528 | struct net_device *dev = (struct net_device *) data; | |
ac9c1897 | 3529 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 3530 | u8 __iomem *base = get_hwbase(dev); |
1da177e4 | 3531 | |
b67874ac AA |
3532 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
3533 | np->events = readl(base + NvRegIrqStatus); | |
1b2bb76f | 3534 | writel(np->events, base + NvRegIrqStatus); |
b67874ac AA |
3535 | } else { |
3536 | np->events = readl(base + NvRegMSIXIrqStatus); | |
1b2bb76f | 3537 | writel(np->events, base + NvRegMSIXIrqStatus); |
b67874ac | 3538 | } |
b67874ac AA |
3539 | if (!(np->events & np->irqmask)) |
3540 | return IRQ_NONE; | |
1da177e4 | 3541 | |
b67874ac | 3542 | nv_msi_workaround(np); |
4db0ee17 | 3543 | |
78c29bd9 ED |
3544 | if (napi_schedule_prep(&np->napi)) { |
3545 | /* | |
3546 | * Disable further irq's (msix not enabled with napi) | |
3547 | */ | |
3548 | writel(0, base + NvRegIrqMask); | |
3549 | __napi_schedule(&np->napi); | |
3550 | } | |
f0734ab6 | 3551 | |
b67874ac | 3552 | return IRQ_HANDLED; |
1da177e4 LT |
3553 | } |
3554 | ||
1aa8b471 | 3555 | /* All _optimized functions are used to help increase performance |
f0734ab6 AA |
3556 | * (reduce CPU and increase throughput). They use descripter version 3, |
3557 | * compiler directives, and reduce memory accesses. | |
3558 | */ | |
86b22b0d AA |
3559 | static irqreturn_t nv_nic_irq_optimized(int foo, void *data) |
3560 | { | |
3561 | struct net_device *dev = (struct net_device *) data; | |
3562 | struct fe_priv *np = netdev_priv(dev); | |
3563 | u8 __iomem *base = get_hwbase(dev); | |
86b22b0d | 3564 | |
b67874ac AA |
3565 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
3566 | np->events = readl(base + NvRegIrqStatus); | |
1b2bb76f | 3567 | writel(np->events, base + NvRegIrqStatus); |
b67874ac AA |
3568 | } else { |
3569 | np->events = readl(base + NvRegMSIXIrqStatus); | |
1b2bb76f | 3570 | writel(np->events, base + NvRegMSIXIrqStatus); |
b67874ac | 3571 | } |
b67874ac AA |
3572 | if (!(np->events & np->irqmask)) |
3573 | return IRQ_NONE; | |
86b22b0d | 3574 | |
b67874ac | 3575 | nv_msi_workaround(np); |
4db0ee17 | 3576 | |
78c29bd9 ED |
3577 | if (napi_schedule_prep(&np->napi)) { |
3578 | /* | |
3579 | * Disable further irq's (msix not enabled with napi) | |
3580 | */ | |
3581 | writel(0, base + NvRegIrqMask); | |
3582 | __napi_schedule(&np->napi); | |
3583 | } | |
86b22b0d | 3584 | |
b67874ac | 3585 | return IRQ_HANDLED; |
86b22b0d AA |
3586 | } |
3587 | ||
7d12e780 | 3588 | static irqreturn_t nv_nic_irq_tx(int foo, void *data) |
d33a73c8 AA |
3589 | { |
3590 | struct net_device *dev = (struct net_device *) data; | |
3591 | struct fe_priv *np = netdev_priv(dev); | |
3592 | u8 __iomem *base = get_hwbase(dev); | |
3593 | u32 events; | |
3594 | int i; | |
0a07bc64 | 3595 | unsigned long flags; |
d33a73c8 | 3596 | |
78aea4fc | 3597 | for (i = 0;; i++) { |
d33a73c8 | 3598 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL; |
2a4e7a08 MD |
3599 | writel(events, base + NvRegMSIXIrqStatus); |
3600 | netdev_dbg(dev, "tx irq events: %08x\n", events); | |
d33a73c8 AA |
3601 | if (!(events & np->irqmask)) |
3602 | break; | |
3603 | ||
0a07bc64 | 3604 | spin_lock_irqsave(&np->lock, flags); |
4e16ed1b | 3605 | nv_tx_done_optimized(dev, TX_WORK_PER_LOOP); |
0a07bc64 | 3606 | spin_unlock_irqrestore(&np->lock, flags); |
f3b197ac | 3607 | |
f0734ab6 | 3608 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3609 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3610 | /* disable interrupts on the nic */ |
3611 | writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask); | |
3612 | pci_push(base); | |
3613 | ||
3614 | if (!np->in_shutdown) { | |
3615 | np->nic_poll_irq |= NVREG_IRQ_TX_ALL; | |
3616 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3617 | } | |
0a07bc64 | 3618 | spin_unlock_irqrestore(&np->lock, flags); |
c20ec761 JP |
3619 | netdev_dbg(dev, "%s: too many iterations (%d)\n", |
3620 | __func__, i); | |
d33a73c8 AA |
3621 | break; |
3622 | } | |
3623 | ||
3624 | } | |
d33a73c8 AA |
3625 | |
3626 | return IRQ_RETVAL(i); | |
3627 | } | |
3628 | ||
bea3348e | 3629 | static int nv_napi_poll(struct napi_struct *napi, int budget) |
e27cdba5 | 3630 | { |
bea3348e SH |
3631 | struct fe_priv *np = container_of(napi, struct fe_priv, napi); |
3632 | struct net_device *dev = np->dev; | |
e27cdba5 | 3633 | u8 __iomem *base = get_hwbase(dev); |
d15e9c4d | 3634 | unsigned long flags; |
4145ade2 | 3635 | int retcode; |
78aea4fc | 3636 | int rx_count, tx_work = 0, rx_work = 0; |
e27cdba5 | 3637 | |
81a2e36d | 3638 | do { |
3639 | if (!nv_optimized(np)) { | |
3640 | spin_lock_irqsave(&np->lock, flags); | |
3641 | tx_work += nv_tx_done(dev, np->tx_ring_size); | |
3642 | spin_unlock_irqrestore(&np->lock, flags); | |
f27e6f39 | 3643 | |
d951f725 | 3644 | rx_count = nv_rx_process(dev, budget - rx_work); |
81a2e36d | 3645 | retcode = nv_alloc_rx(dev); |
3646 | } else { | |
3647 | spin_lock_irqsave(&np->lock, flags); | |
3648 | tx_work += nv_tx_done_optimized(dev, np->tx_ring_size); | |
3649 | spin_unlock_irqrestore(&np->lock, flags); | |
f27e6f39 | 3650 | |
d951f725 TH |
3651 | rx_count = nv_rx_process_optimized(dev, |
3652 | budget - rx_work); | |
81a2e36d | 3653 | retcode = nv_alloc_rx_optimized(dev); |
3654 | } | |
3655 | } while (retcode == 0 && | |
3656 | rx_count > 0 && (rx_work += rx_count) < budget); | |
e27cdba5 | 3657 | |
e0379a14 | 3658 | if (retcode) { |
d15e9c4d | 3659 | spin_lock_irqsave(&np->lock, flags); |
e27cdba5 SH |
3660 | if (!np->in_shutdown) |
3661 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
d15e9c4d | 3662 | spin_unlock_irqrestore(&np->lock, flags); |
e27cdba5 SH |
3663 | } |
3664 | ||
4145ade2 AA |
3665 | nv_change_interrupt_mode(dev, tx_work + rx_work); |
3666 | ||
f27e6f39 AA |
3667 | if (unlikely(np->events & NVREG_IRQ_LINK)) { |
3668 | spin_lock_irqsave(&np->lock, flags); | |
3669 | nv_link_irq(dev); | |
3670 | spin_unlock_irqrestore(&np->lock, flags); | |
3671 | } | |
3672 | if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) { | |
3673 | spin_lock_irqsave(&np->lock, flags); | |
3674 | nv_linkchange(dev); | |
3675 | spin_unlock_irqrestore(&np->lock, flags); | |
3676 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
3677 | } | |
3678 | if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) { | |
3679 | spin_lock_irqsave(&np->lock, flags); | |
3680 | if (!np->in_shutdown) { | |
3681 | np->nic_poll_irq = np->irqmask; | |
3682 | np->recover_error = 1; | |
3683 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3684 | } | |
3685 | spin_unlock_irqrestore(&np->lock, flags); | |
6c2da9c2 | 3686 | napi_complete(napi); |
4145ade2 | 3687 | return rx_work; |
f27e6f39 AA |
3688 | } |
3689 | ||
4145ade2 | 3690 | if (rx_work < budget) { |
f27e6f39 AA |
3691 | /* re-enable interrupts |
3692 | (msix not enabled in napi) */ | |
6c2da9c2 | 3693 | napi_complete(napi); |
bea3348e | 3694 | |
f27e6f39 | 3695 | writel(np->irqmask, base + NvRegIrqMask); |
e27cdba5 | 3696 | } |
4145ade2 | 3697 | return rx_work; |
e27cdba5 | 3698 | } |
e27cdba5 | 3699 | |
7d12e780 | 3700 | static irqreturn_t nv_nic_irq_rx(int foo, void *data) |
d33a73c8 AA |
3701 | { |
3702 | struct net_device *dev = (struct net_device *) data; | |
3703 | struct fe_priv *np = netdev_priv(dev); | |
3704 | u8 __iomem *base = get_hwbase(dev); | |
3705 | u32 events; | |
3706 | int i; | |
0a07bc64 | 3707 | unsigned long flags; |
d33a73c8 | 3708 | |
78aea4fc | 3709 | for (i = 0;; i++) { |
d33a73c8 | 3710 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL; |
2a4e7a08 MD |
3711 | writel(events, base + NvRegMSIXIrqStatus); |
3712 | netdev_dbg(dev, "rx irq events: %08x\n", events); | |
d33a73c8 AA |
3713 | if (!(events & np->irqmask)) |
3714 | break; | |
f3b197ac | 3715 | |
bea3348e | 3716 | if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) { |
f0734ab6 AA |
3717 | if (unlikely(nv_alloc_rx_optimized(dev))) { |
3718 | spin_lock_irqsave(&np->lock, flags); | |
3719 | if (!np->in_shutdown) | |
3720 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
3721 | spin_unlock_irqrestore(&np->lock, flags); | |
3722 | } | |
d33a73c8 | 3723 | } |
f3b197ac | 3724 | |
f0734ab6 | 3725 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3726 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3727 | /* disable interrupts on the nic */ |
3728 | writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask); | |
3729 | pci_push(base); | |
3730 | ||
3731 | if (!np->in_shutdown) { | |
3732 | np->nic_poll_irq |= NVREG_IRQ_RX_ALL; | |
3733 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3734 | } | |
0a07bc64 | 3735 | spin_unlock_irqrestore(&np->lock, flags); |
c20ec761 JP |
3736 | netdev_dbg(dev, "%s: too many iterations (%d)\n", |
3737 | __func__, i); | |
d33a73c8 AA |
3738 | break; |
3739 | } | |
d33a73c8 | 3740 | } |
d33a73c8 AA |
3741 | |
3742 | return IRQ_RETVAL(i); | |
3743 | } | |
3744 | ||
7d12e780 | 3745 | static irqreturn_t nv_nic_irq_other(int foo, void *data) |
d33a73c8 AA |
3746 | { |
3747 | struct net_device *dev = (struct net_device *) data; | |
3748 | struct fe_priv *np = netdev_priv(dev); | |
3749 | u8 __iomem *base = get_hwbase(dev); | |
3750 | u32 events; | |
3751 | int i; | |
0a07bc64 | 3752 | unsigned long flags; |
d33a73c8 | 3753 | |
78aea4fc | 3754 | for (i = 0;; i++) { |
d33a73c8 | 3755 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER; |
2a4e7a08 MD |
3756 | writel(events, base + NvRegMSIXIrqStatus); |
3757 | netdev_dbg(dev, "irq events: %08x\n", events); | |
d33a73c8 AA |
3758 | if (!(events & np->irqmask)) |
3759 | break; | |
f3b197ac | 3760 | |
4e16ed1b AA |
3761 | /* check tx in case we reached max loop limit in tx isr */ |
3762 | spin_lock_irqsave(&np->lock, flags); | |
3763 | nv_tx_done_optimized(dev, TX_WORK_PER_LOOP); | |
3764 | spin_unlock_irqrestore(&np->lock, flags); | |
3765 | ||
d33a73c8 | 3766 | if (events & NVREG_IRQ_LINK) { |
0a07bc64 | 3767 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 | 3768 | nv_link_irq(dev); |
0a07bc64 | 3769 | spin_unlock_irqrestore(&np->lock, flags); |
d33a73c8 AA |
3770 | } |
3771 | if (np->need_linktimer && time_after(jiffies, np->link_timeout)) { | |
0a07bc64 | 3772 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 | 3773 | nv_linkchange(dev); |
0a07bc64 | 3774 | spin_unlock_irqrestore(&np->lock, flags); |
d33a73c8 AA |
3775 | np->link_timeout = jiffies + LINK_TIMEOUT; |
3776 | } | |
c5cf9101 AA |
3777 | if (events & NVREG_IRQ_RECOVER_ERROR) { |
3778 | spin_lock_irq(&np->lock); | |
3779 | /* disable interrupts on the nic */ | |
3780 | writel(NVREG_IRQ_OTHER, base + NvRegIrqMask); | |
3781 | pci_push(base); | |
3782 | ||
3783 | if (!np->in_shutdown) { | |
3784 | np->nic_poll_irq |= NVREG_IRQ_OTHER; | |
3785 | np->recover_error = 1; | |
3786 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3787 | } | |
3788 | spin_unlock_irq(&np->lock); | |
3789 | break; | |
3790 | } | |
f0734ab6 | 3791 | if (unlikely(i > max_interrupt_work)) { |
0a07bc64 | 3792 | spin_lock_irqsave(&np->lock, flags); |
d33a73c8 AA |
3793 | /* disable interrupts on the nic */ |
3794 | writel(NVREG_IRQ_OTHER, base + NvRegIrqMask); | |
3795 | pci_push(base); | |
3796 | ||
3797 | if (!np->in_shutdown) { | |
3798 | np->nic_poll_irq |= NVREG_IRQ_OTHER; | |
3799 | mod_timer(&np->nic_poll, jiffies + POLL_WAIT); | |
3800 | } | |
0a07bc64 | 3801 | spin_unlock_irqrestore(&np->lock, flags); |
c20ec761 JP |
3802 | netdev_dbg(dev, "%s: too many iterations (%d)\n", |
3803 | __func__, i); | |
d33a73c8 AA |
3804 | break; |
3805 | } | |
3806 | ||
3807 | } | |
d33a73c8 AA |
3808 | |
3809 | return IRQ_RETVAL(i); | |
3810 | } | |
3811 | ||
7d12e780 | 3812 | static irqreturn_t nv_nic_irq_test(int foo, void *data) |
9589c77a AA |
3813 | { |
3814 | struct net_device *dev = (struct net_device *) data; | |
3815 | struct fe_priv *np = netdev_priv(dev); | |
3816 | u8 __iomem *base = get_hwbase(dev); | |
3817 | u32 events; | |
3818 | ||
9589c77a AA |
3819 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) { |
3820 | events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK; | |
2a4e7a08 | 3821 | writel(events & NVREG_IRQ_TIMER, base + NvRegIrqStatus); |
9589c77a AA |
3822 | } else { |
3823 | events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK; | |
2a4e7a08 | 3824 | writel(events & NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus); |
9589c77a AA |
3825 | } |
3826 | pci_push(base); | |
9589c77a AA |
3827 | if (!(events & NVREG_IRQ_TIMER)) |
3828 | return IRQ_RETVAL(0); | |
3829 | ||
4db0ee17 AA |
3830 | nv_msi_workaround(np); |
3831 | ||
9589c77a AA |
3832 | spin_lock(&np->lock); |
3833 | np->intr_test = 1; | |
3834 | spin_unlock(&np->lock); | |
3835 | ||
9589c77a AA |
3836 | return IRQ_RETVAL(1); |
3837 | } | |
3838 | ||
7a1854b7 AA |
3839 | static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask) |
3840 | { | |
3841 | u8 __iomem *base = get_hwbase(dev); | |
3842 | int i; | |
3843 | u32 msixmap = 0; | |
3844 | ||
3845 | /* Each interrupt bit can be mapped to a MSIX vector (4 bits). | |
3846 | * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents | |
3847 | * the remaining 8 interrupts. | |
3848 | */ | |
3849 | for (i = 0; i < 8; i++) { | |
78aea4fc | 3850 | if ((irqmask >> i) & 0x1) |
7a1854b7 | 3851 | msixmap |= vector << (i << 2); |
7a1854b7 AA |
3852 | } |
3853 | writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0); | |
3854 | ||
3855 | msixmap = 0; | |
3856 | for (i = 0; i < 8; i++) { | |
78aea4fc | 3857 | if ((irqmask >> (i + 8)) & 0x1) |
7a1854b7 | 3858 | msixmap |= vector << (i << 2); |
7a1854b7 AA |
3859 | } |
3860 | writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1); | |
3861 | } | |
3862 | ||
9589c77a | 3863 | static int nv_request_irq(struct net_device *dev, int intr_test) |
7a1854b7 AA |
3864 | { |
3865 | struct fe_priv *np = get_nvpriv(dev); | |
3866 | u8 __iomem *base = get_hwbase(dev); | |
3867 | int ret = 1; | |
3868 | int i; | |
86b22b0d AA |
3869 | irqreturn_t (*handler)(int foo, void *data); |
3870 | ||
3871 | if (intr_test) { | |
3872 | handler = nv_nic_irq_test; | |
3873 | } else { | |
36b30ea9 | 3874 | if (nv_optimized(np)) |
86b22b0d AA |
3875 | handler = nv_nic_irq_optimized; |
3876 | else | |
3877 | handler = nv_nic_irq; | |
3878 | } | |
7a1854b7 AA |
3879 | |
3880 | if (np->msi_flags & NV_MSI_X_CAPABLE) { | |
78aea4fc | 3881 | for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) |
7a1854b7 | 3882 | np->msi_x_entry[i].entry = i; |
34cf97eb SJ |
3883 | ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK)); |
3884 | if (ret == 0) { | |
7a1854b7 | 3885 | np->msi_flags |= NV_MSI_X_ENABLED; |
9589c77a | 3886 | if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) { |
7a1854b7 | 3887 | /* Request irq for rx handling */ |
ddb213f0 YL |
3888 | sprintf(np->name_rx, "%s-rx", dev->name); |
3889 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, | |
a0607fd3 | 3890 | nv_nic_irq_rx, IRQF_SHARED, np->name_rx, dev) != 0) { |
1d397f36 JP |
3891 | netdev_info(dev, |
3892 | "request_irq failed for rx %d\n", | |
3893 | ret); | |
7a1854b7 AA |
3894 | pci_disable_msix(np->pci_dev); |
3895 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
3896 | goto out_err; | |
3897 | } | |
3898 | /* Request irq for tx handling */ | |
ddb213f0 YL |
3899 | sprintf(np->name_tx, "%s-tx", dev->name); |
3900 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, | |
a0607fd3 | 3901 | nv_nic_irq_tx, IRQF_SHARED, np->name_tx, dev) != 0) { |
1d397f36 JP |
3902 | netdev_info(dev, |
3903 | "request_irq failed for tx %d\n", | |
3904 | ret); | |
7a1854b7 AA |
3905 | pci_disable_msix(np->pci_dev); |
3906 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
3907 | goto out_free_rx; | |
3908 | } | |
3909 | /* Request irq for link and timer handling */ | |
ddb213f0 YL |
3910 | sprintf(np->name_other, "%s-other", dev->name); |
3911 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, | |
a0607fd3 | 3912 | nv_nic_irq_other, IRQF_SHARED, np->name_other, dev) != 0) { |
1d397f36 JP |
3913 | netdev_info(dev, |
3914 | "request_irq failed for link %d\n", | |
3915 | ret); | |
7a1854b7 AA |
3916 | pci_disable_msix(np->pci_dev); |
3917 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
3918 | goto out_free_tx; | |
3919 | } | |
3920 | /* map interrupts to their respective vector */ | |
3921 | writel(0, base + NvRegMSIXMap0); | |
3922 | writel(0, base + NvRegMSIXMap1); | |
3923 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL); | |
3924 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL); | |
3925 | set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER); | |
3926 | } else { | |
3927 | /* Request irq for all interrupts */ | |
86b22b0d | 3928 | if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, handler, IRQF_SHARED, dev->name, dev) != 0) { |
1d397f36 JP |
3929 | netdev_info(dev, |
3930 | "request_irq failed %d\n", | |
3931 | ret); | |
7a1854b7 AA |
3932 | pci_disable_msix(np->pci_dev); |
3933 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
3934 | goto out_err; | |
3935 | } | |
3936 | ||
3937 | /* map interrupts to vector 0 */ | |
3938 | writel(0, base + NvRegMSIXMap0); | |
3939 | writel(0, base + NvRegMSIXMap1); | |
3940 | } | |
89328783 | 3941 | netdev_info(dev, "MSI-X enabled\n"); |
7a1854b7 AA |
3942 | } |
3943 | } | |
3944 | if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) { | |
34cf97eb SJ |
3945 | ret = pci_enable_msi(np->pci_dev); |
3946 | if (ret == 0) { | |
7a1854b7 | 3947 | np->msi_flags |= NV_MSI_ENABLED; |
86b22b0d | 3948 | if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) { |
1d397f36 JP |
3949 | netdev_info(dev, "request_irq failed %d\n", |
3950 | ret); | |
7a1854b7 AA |
3951 | pci_disable_msi(np->pci_dev); |
3952 | np->msi_flags &= ~NV_MSI_ENABLED; | |
3953 | goto out_err; | |
3954 | } | |
3955 | ||
3956 | /* map interrupts to vector 0 */ | |
3957 | writel(0, base + NvRegMSIMap0); | |
3958 | writel(0, base + NvRegMSIMap1); | |
3959 | /* enable msi vector 0 */ | |
3960 | writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask); | |
89328783 | 3961 | netdev_info(dev, "MSI enabled\n"); |
7a1854b7 AA |
3962 | } |
3963 | } | |
3964 | if (ret != 0) { | |
86b22b0d | 3965 | if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) |
7a1854b7 | 3966 | goto out_err; |
9589c77a | 3967 | |
7a1854b7 AA |
3968 | } |
3969 | ||
3970 | return 0; | |
3971 | out_free_tx: | |
3972 | free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev); | |
3973 | out_free_rx: | |
3974 | free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev); | |
3975 | out_err: | |
3976 | return 1; | |
3977 | } | |
3978 | ||
3979 | static void nv_free_irq(struct net_device *dev) | |
3980 | { | |
3981 | struct fe_priv *np = get_nvpriv(dev); | |
3982 | int i; | |
3983 | ||
3984 | if (np->msi_flags & NV_MSI_X_ENABLED) { | |
78aea4fc | 3985 | for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) |
7a1854b7 | 3986 | free_irq(np->msi_x_entry[i].vector, dev); |
7a1854b7 AA |
3987 | pci_disable_msix(np->pci_dev); |
3988 | np->msi_flags &= ~NV_MSI_X_ENABLED; | |
3989 | } else { | |
3990 | free_irq(np->pci_dev->irq, dev); | |
3991 | if (np->msi_flags & NV_MSI_ENABLED) { | |
3992 | pci_disable_msi(np->pci_dev); | |
3993 | np->msi_flags &= ~NV_MSI_ENABLED; | |
3994 | } | |
3995 | } | |
3996 | } | |
3997 | ||
1da177e4 LT |
3998 | static void nv_do_nic_poll(unsigned long data) |
3999 | { | |
4000 | struct net_device *dev = (struct net_device *) data; | |
ac9c1897 | 4001 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 4002 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 | 4003 | u32 mask = 0; |
1da177e4 | 4004 | |
1da177e4 | 4005 | /* |
d33a73c8 | 4006 | * First disable irq(s) and then |
1da177e4 LT |
4007 | * reenable interrupts on the nic, we have to do this before calling |
4008 | * nv_nic_irq because that may decide to do otherwise | |
4009 | */ | |
d33a73c8 | 4010 | |
84b3932b AA |
4011 | if (!using_multi_irqs(dev)) { |
4012 | if (np->msi_flags & NV_MSI_X_ENABLED) | |
8688cfce | 4013 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
84b3932b | 4014 | else |
a7475906 | 4015 | disable_irq_lockdep(np->pci_dev->irq); |
d33a73c8 AA |
4016 | mask = np->irqmask; |
4017 | } else { | |
4018 | if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { | |
8688cfce | 4019 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
d33a73c8 AA |
4020 | mask |= NVREG_IRQ_RX_ALL; |
4021 | } | |
4022 | if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { | |
8688cfce | 4023 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
d33a73c8 AA |
4024 | mask |= NVREG_IRQ_TX_ALL; |
4025 | } | |
4026 | if (np->nic_poll_irq & NVREG_IRQ_OTHER) { | |
8688cfce | 4027 | disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
d33a73c8 AA |
4028 | mask |= NVREG_IRQ_OTHER; |
4029 | } | |
4030 | } | |
a7475906 MS |
4031 | /* disable_irq() contains synchronize_irq, thus no irq handler can run now */ |
4032 | ||
c5cf9101 AA |
4033 | if (np->recover_error) { |
4034 | np->recover_error = 0; | |
1d397f36 | 4035 | netdev_info(dev, "MAC in recoverable error state\n"); |
c5cf9101 AA |
4036 | if (netif_running(dev)) { |
4037 | netif_tx_lock_bh(dev); | |
e308a5d8 | 4038 | netif_addr_lock(dev); |
c5cf9101 AA |
4039 | spin_lock(&np->lock); |
4040 | /* stop engines */ | |
36b30ea9 | 4041 | nv_stop_rxtx(dev); |
daa91a9d AA |
4042 | if (np->driver_data & DEV_HAS_POWER_CNTRL) |
4043 | nv_mac_reset(dev); | |
c5cf9101 AA |
4044 | nv_txrx_reset(dev); |
4045 | /* drain rx queue */ | |
36b30ea9 | 4046 | nv_drain_rxtx(dev); |
c5cf9101 AA |
4047 | /* reinit driver view of the rx queue */ |
4048 | set_bufsize(dev); | |
4049 | if (nv_init_ring(dev)) { | |
4050 | if (!np->in_shutdown) | |
4051 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
4052 | } | |
4053 | /* reinit nic view of the rx queue */ | |
4054 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
4055 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
78aea4fc | 4056 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
c5cf9101 AA |
4057 | base + NvRegRingSizes); |
4058 | pci_push(base); | |
4059 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
4060 | pci_push(base); | |
daa91a9d AA |
4061 | /* clear interrupts */ |
4062 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
4063 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
4064 | else | |
4065 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); | |
c5cf9101 AA |
4066 | |
4067 | /* restart rx engine */ | |
36b30ea9 | 4068 | nv_start_rxtx(dev); |
c5cf9101 | 4069 | spin_unlock(&np->lock); |
e308a5d8 | 4070 | netif_addr_unlock(dev); |
c5cf9101 AA |
4071 | netif_tx_unlock_bh(dev); |
4072 | } | |
4073 | } | |
4074 | ||
d33a73c8 | 4075 | writel(mask, base + NvRegIrqMask); |
1da177e4 | 4076 | pci_push(base); |
d33a73c8 | 4077 | |
84b3932b | 4078 | if (!using_multi_irqs(dev)) { |
79d30a58 | 4079 | np->nic_poll_irq = 0; |
36b30ea9 | 4080 | if (nv_optimized(np)) |
fcc5f266 AA |
4081 | nv_nic_irq_optimized(0, dev); |
4082 | else | |
4083 | nv_nic_irq(0, dev); | |
84b3932b | 4084 | if (np->msi_flags & NV_MSI_X_ENABLED) |
8688cfce | 4085 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector); |
84b3932b | 4086 | else |
a7475906 | 4087 | enable_irq_lockdep(np->pci_dev->irq); |
d33a73c8 AA |
4088 | } else { |
4089 | if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) { | |
79d30a58 | 4090 | np->nic_poll_irq &= ~NVREG_IRQ_RX_ALL; |
7d12e780 | 4091 | nv_nic_irq_rx(0, dev); |
8688cfce | 4092 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector); |
d33a73c8 AA |
4093 | } |
4094 | if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) { | |
79d30a58 | 4095 | np->nic_poll_irq &= ~NVREG_IRQ_TX_ALL; |
7d12e780 | 4096 | nv_nic_irq_tx(0, dev); |
8688cfce | 4097 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector); |
d33a73c8 AA |
4098 | } |
4099 | if (np->nic_poll_irq & NVREG_IRQ_OTHER) { | |
79d30a58 | 4100 | np->nic_poll_irq &= ~NVREG_IRQ_OTHER; |
7d12e780 | 4101 | nv_nic_irq_other(0, dev); |
8688cfce | 4102 | enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector); |
d33a73c8 AA |
4103 | } |
4104 | } | |
79d30a58 | 4105 | |
1da177e4 LT |
4106 | } |
4107 | ||
2918c35d MS |
4108 | #ifdef CONFIG_NET_POLL_CONTROLLER |
4109 | static void nv_poll_controller(struct net_device *dev) | |
4110 | { | |
4111 | nv_do_nic_poll((unsigned long) dev); | |
4112 | } | |
4113 | #endif | |
4114 | ||
52da3578 | 4115 | static void nv_do_stats_poll(unsigned long data) |
f5d827ae | 4116 | __acquires(&netdev_priv(dev)->hwstats_lock) |
4117 | __releases(&netdev_priv(dev)->hwstats_lock) | |
52da3578 AA |
4118 | { |
4119 | struct net_device *dev = (struct net_device *) data; | |
4120 | struct fe_priv *np = netdev_priv(dev); | |
52da3578 | 4121 | |
f5d827ae | 4122 | /* If lock is currently taken, the stats are being refreshed |
4123 | * and hence fresh enough */ | |
4124 | if (spin_trylock(&np->hwstats_lock)) { | |
4125 | nv_update_stats(dev); | |
4126 | spin_unlock(&np->hwstats_lock); | |
4127 | } | |
52da3578 AA |
4128 | |
4129 | if (!np->in_shutdown) | |
bfebbb88 DD |
4130 | mod_timer(&np->stats_poll, |
4131 | round_jiffies(jiffies + STATS_INTERVAL)); | |
52da3578 AA |
4132 | } |
4133 | ||
1da177e4 LT |
4134 | static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
4135 | { | |
ac9c1897 | 4136 | struct fe_priv *np = netdev_priv(dev); |
68aad78c RJ |
4137 | strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
4138 | strlcpy(info->version, FORCEDETH_VERSION, sizeof(info->version)); | |
4139 | strlcpy(info->bus_info, pci_name(np->pci_dev), sizeof(info->bus_info)); | |
1da177e4 LT |
4140 | } |
4141 | ||
4142 | static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
4143 | { | |
ac9c1897 | 4144 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
4145 | wolinfo->supported = WAKE_MAGIC; |
4146 | ||
4147 | spin_lock_irq(&np->lock); | |
4148 | if (np->wolenabled) | |
4149 | wolinfo->wolopts = WAKE_MAGIC; | |
4150 | spin_unlock_irq(&np->lock); | |
4151 | } | |
4152 | ||
4153 | static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) | |
4154 | { | |
ac9c1897 | 4155 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 4156 | u8 __iomem *base = get_hwbase(dev); |
c42d9df9 | 4157 | u32 flags = 0; |
1da177e4 | 4158 | |
1da177e4 | 4159 | if (wolinfo->wolopts == 0) { |
1da177e4 | 4160 | np->wolenabled = 0; |
c42d9df9 | 4161 | } else if (wolinfo->wolopts & WAKE_MAGIC) { |
1da177e4 | 4162 | np->wolenabled = 1; |
c42d9df9 AA |
4163 | flags = NVREG_WAKEUPFLAGS_ENABLE; |
4164 | } | |
4165 | if (netif_running(dev)) { | |
4166 | spin_lock_irq(&np->lock); | |
4167 | writel(flags, base + NvRegWakeUpFlags); | |
4168 | spin_unlock_irq(&np->lock); | |
1da177e4 | 4169 | } |
dba5a68a | 4170 | device_set_wakeup_enable(&np->pci_dev->dev, np->wolenabled); |
1da177e4 LT |
4171 | return 0; |
4172 | } | |
4173 | ||
4174 | static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
4175 | { | |
4176 | struct fe_priv *np = netdev_priv(dev); | |
70739497 | 4177 | u32 speed; |
1da177e4 LT |
4178 | int adv; |
4179 | ||
4180 | spin_lock_irq(&np->lock); | |
4181 | ecmd->port = PORT_MII; | |
4182 | if (!netif_running(dev)) { | |
4183 | /* We do not track link speed / duplex setting if the | |
4184 | * interface is disabled. Force a link check */ | |
f9430a01 AA |
4185 | if (nv_update_linkspeed(dev)) { |
4186 | if (!netif_carrier_ok(dev)) | |
4187 | netif_carrier_on(dev); | |
4188 | } else { | |
4189 | if (netif_carrier_ok(dev)) | |
4190 | netif_carrier_off(dev); | |
4191 | } | |
1da177e4 | 4192 | } |
f9430a01 AA |
4193 | |
4194 | if (netif_carrier_ok(dev)) { | |
78aea4fc | 4195 | switch (np->linkspeed & (NVREG_LINKSPEED_MASK)) { |
1da177e4 | 4196 | case NVREG_LINKSPEED_10: |
70739497 | 4197 | speed = SPEED_10; |
1da177e4 LT |
4198 | break; |
4199 | case NVREG_LINKSPEED_100: | |
70739497 | 4200 | speed = SPEED_100; |
1da177e4 LT |
4201 | break; |
4202 | case NVREG_LINKSPEED_1000: | |
70739497 DD |
4203 | speed = SPEED_1000; |
4204 | break; | |
4205 | default: | |
4206 | speed = -1; | |
1da177e4 | 4207 | break; |
f9430a01 AA |
4208 | } |
4209 | ecmd->duplex = DUPLEX_HALF; | |
4210 | if (np->duplex) | |
4211 | ecmd->duplex = DUPLEX_FULL; | |
4212 | } else { | |
70739497 | 4213 | speed = -1; |
f9430a01 | 4214 | ecmd->duplex = -1; |
1da177e4 | 4215 | } |
70739497 | 4216 | ethtool_cmd_speed_set(ecmd, speed); |
1da177e4 LT |
4217 | ecmd->autoneg = np->autoneg; |
4218 | ||
4219 | ecmd->advertising = ADVERTISED_MII; | |
4220 | if (np->autoneg) { | |
4221 | ecmd->advertising |= ADVERTISED_Autoneg; | |
4222 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
f9430a01 AA |
4223 | if (adv & ADVERTISE_10HALF) |
4224 | ecmd->advertising |= ADVERTISED_10baseT_Half; | |
4225 | if (adv & ADVERTISE_10FULL) | |
4226 | ecmd->advertising |= ADVERTISED_10baseT_Full; | |
4227 | if (adv & ADVERTISE_100HALF) | |
4228 | ecmd->advertising |= ADVERTISED_100baseT_Half; | |
4229 | if (adv & ADVERTISE_100FULL) | |
4230 | ecmd->advertising |= ADVERTISED_100baseT_Full; | |
4231 | if (np->gigabit == PHY_GIGABIT) { | |
4232 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); | |
4233 | if (adv & ADVERTISE_1000FULL) | |
4234 | ecmd->advertising |= ADVERTISED_1000baseT_Full; | |
4235 | } | |
1da177e4 | 4236 | } |
1da177e4 LT |
4237 | ecmd->supported = (SUPPORTED_Autoneg | |
4238 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | | |
4239 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | | |
4240 | SUPPORTED_MII); | |
4241 | if (np->gigabit == PHY_GIGABIT) | |
4242 | ecmd->supported |= SUPPORTED_1000baseT_Full; | |
4243 | ||
4244 | ecmd->phy_address = np->phyaddr; | |
4245 | ecmd->transceiver = XCVR_EXTERNAL; | |
4246 | ||
4247 | /* ignore maxtxpkt, maxrxpkt for now */ | |
4248 | spin_unlock_irq(&np->lock); | |
4249 | return 0; | |
4250 | } | |
4251 | ||
4252 | static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
4253 | { | |
4254 | struct fe_priv *np = netdev_priv(dev); | |
25db0338 | 4255 | u32 speed = ethtool_cmd_speed(ecmd); |
1da177e4 LT |
4256 | |
4257 | if (ecmd->port != PORT_MII) | |
4258 | return -EINVAL; | |
4259 | if (ecmd->transceiver != XCVR_EXTERNAL) | |
4260 | return -EINVAL; | |
4261 | if (ecmd->phy_address != np->phyaddr) { | |
4262 | /* TODO: support switching between multiple phys. Should be | |
4263 | * trivial, but not enabled due to lack of test hardware. */ | |
4264 | return -EINVAL; | |
4265 | } | |
4266 | if (ecmd->autoneg == AUTONEG_ENABLE) { | |
4267 | u32 mask; | |
4268 | ||
4269 | mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | | |
4270 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; | |
4271 | if (np->gigabit == PHY_GIGABIT) | |
4272 | mask |= ADVERTISED_1000baseT_Full; | |
4273 | ||
4274 | if ((ecmd->advertising & mask) == 0) | |
4275 | return -EINVAL; | |
4276 | ||
4277 | } else if (ecmd->autoneg == AUTONEG_DISABLE) { | |
4278 | /* Note: autonegotiation disable, speed 1000 intentionally | |
25985edc | 4279 | * forbidden - no one should need that. */ |
1da177e4 | 4280 | |
25db0338 | 4281 | if (speed != SPEED_10 && speed != SPEED_100) |
1da177e4 LT |
4282 | return -EINVAL; |
4283 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
4284 | return -EINVAL; | |
4285 | } else { | |
4286 | return -EINVAL; | |
4287 | } | |
4288 | ||
f9430a01 AA |
4289 | netif_carrier_off(dev); |
4290 | if (netif_running(dev)) { | |
97bff095 TD |
4291 | unsigned long flags; |
4292 | ||
f9430a01 | 4293 | nv_disable_irq(dev); |
58dfd9c1 | 4294 | netif_tx_lock_bh(dev); |
e308a5d8 | 4295 | netif_addr_lock(dev); |
97bff095 TD |
4296 | /* with plain spinlock lockdep complains */ |
4297 | spin_lock_irqsave(&np->lock, flags); | |
f9430a01 | 4298 | /* stop engines */ |
97bff095 TD |
4299 | /* FIXME: |
4300 | * this can take some time, and interrupts are disabled | |
4301 | * due to spin_lock_irqsave, but let's hope no daemon | |
4302 | * is going to change the settings very often... | |
4303 | * Worst case: | |
4304 | * NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX | |
4305 | * + some minor delays, which is up to a second approximately | |
4306 | */ | |
36b30ea9 | 4307 | nv_stop_rxtx(dev); |
97bff095 | 4308 | spin_unlock_irqrestore(&np->lock, flags); |
e308a5d8 | 4309 | netif_addr_unlock(dev); |
58dfd9c1 | 4310 | netif_tx_unlock_bh(dev); |
f9430a01 AA |
4311 | } |
4312 | ||
1da177e4 LT |
4313 | if (ecmd->autoneg == AUTONEG_ENABLE) { |
4314 | int adv, bmcr; | |
4315 | ||
4316 | np->autoneg = 1; | |
4317 | ||
4318 | /* advertise only what has been requested */ | |
4319 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
eb91f61b | 4320 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
1da177e4 LT |
4321 | if (ecmd->advertising & ADVERTISED_10baseT_Half) |
4322 | adv |= ADVERTISE_10HALF; | |
4323 | if (ecmd->advertising & ADVERTISED_10baseT_Full) | |
b6d0773f | 4324 | adv |= ADVERTISE_10FULL; |
1da177e4 LT |
4325 | if (ecmd->advertising & ADVERTISED_100baseT_Half) |
4326 | adv |= ADVERTISE_100HALF; | |
4327 | if (ecmd->advertising & ADVERTISED_100baseT_Full) | |
b6d0773f | 4328 | adv |= ADVERTISE_100FULL; |
25985edc | 4329 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisements but disable tx pause */ |
b6d0773f AA |
4330 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
4331 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
4332 | adv |= ADVERTISE_PAUSE_ASYM; | |
1da177e4 LT |
4333 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
4334 | ||
4335 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b | 4336 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
1da177e4 LT |
4337 | adv &= ~ADVERTISE_1000FULL; |
4338 | if (ecmd->advertising & ADVERTISED_1000baseT_Full) | |
4339 | adv |= ADVERTISE_1000FULL; | |
eb91f61b | 4340 | mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
1da177e4 LT |
4341 | } |
4342 | ||
f9430a01 | 4343 | if (netif_running(dev)) |
1d397f36 | 4344 | netdev_info(dev, "link down\n"); |
1da177e4 | 4345 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
edf7e5ec AA |
4346 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { |
4347 | bmcr |= BMCR_ANENABLE; | |
4348 | /* reset the phy in order for settings to stick, | |
4349 | * and cause autoneg to start */ | |
4350 | if (phy_reset(dev, bmcr)) { | |
1d397f36 | 4351 | netdev_info(dev, "phy reset failed\n"); |
edf7e5ec AA |
4352 | return -EINVAL; |
4353 | } | |
4354 | } else { | |
4355 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4356 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4357 | } | |
1da177e4 LT |
4358 | } else { |
4359 | int adv, bmcr; | |
4360 | ||
4361 | np->autoneg = 0; | |
4362 | ||
4363 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
eb91f61b | 4364 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
25db0338 | 4365 | if (speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF) |
1da177e4 | 4366 | adv |= ADVERTISE_10HALF; |
25db0338 | 4367 | if (speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL) |
b6d0773f | 4368 | adv |= ADVERTISE_10FULL; |
25db0338 | 4369 | if (speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF) |
1da177e4 | 4370 | adv |= ADVERTISE_100HALF; |
25db0338 | 4371 | if (speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL) |
b6d0773f AA |
4372 | adv |= ADVERTISE_100FULL; |
4373 | np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); | |
25985edc | 4374 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisements but disable tx pause */ |
b6d0773f AA |
4375 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
4376 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
4377 | } | |
4378 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) { | |
4379 | adv |= ADVERTISE_PAUSE_ASYM; | |
4380 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
4381 | } | |
1da177e4 LT |
4382 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); |
4383 | np->fixed_mode = adv; | |
4384 | ||
4385 | if (np->gigabit == PHY_GIGABIT) { | |
eb91f61b | 4386 | adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ); |
1da177e4 | 4387 | adv &= ~ADVERTISE_1000FULL; |
eb91f61b | 4388 | mii_rw(dev, np->phyaddr, MII_CTRL1000, adv); |
1da177e4 LT |
4389 | } |
4390 | ||
4391 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
f9430a01 AA |
4392 | bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX); |
4393 | if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL)) | |
1da177e4 | 4394 | bmcr |= BMCR_FULLDPLX; |
f9430a01 | 4395 | if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL)) |
1da177e4 | 4396 | bmcr |= BMCR_SPEED100; |
f9430a01 | 4397 | if (np->phy_oui == PHY_OUI_MARVELL) { |
edf7e5ec AA |
4398 | /* reset the phy in order for forced mode settings to stick */ |
4399 | if (phy_reset(dev, bmcr)) { | |
1d397f36 | 4400 | netdev_info(dev, "phy reset failed\n"); |
f9430a01 AA |
4401 | return -EINVAL; |
4402 | } | |
edf7e5ec AA |
4403 | } else { |
4404 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4405 | if (netif_running(dev)) { | |
4406 | /* Wait a bit and then reconfigure the nic. */ | |
4407 | udelay(10); | |
4408 | nv_linkchange(dev); | |
4409 | } | |
1da177e4 LT |
4410 | } |
4411 | } | |
f9430a01 AA |
4412 | |
4413 | if (netif_running(dev)) { | |
36b30ea9 | 4414 | nv_start_rxtx(dev); |
f9430a01 AA |
4415 | nv_enable_irq(dev); |
4416 | } | |
1da177e4 LT |
4417 | |
4418 | return 0; | |
4419 | } | |
4420 | ||
dc8216c1 | 4421 | #define FORCEDETH_REGS_VER 1 |
dc8216c1 MS |
4422 | |
4423 | static int nv_get_regs_len(struct net_device *dev) | |
4424 | { | |
86a0f043 AA |
4425 | struct fe_priv *np = netdev_priv(dev); |
4426 | return np->register_size; | |
dc8216c1 MS |
4427 | } |
4428 | ||
4429 | static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) | |
4430 | { | |
ac9c1897 | 4431 | struct fe_priv *np = netdev_priv(dev); |
dc8216c1 MS |
4432 | u8 __iomem *base = get_hwbase(dev); |
4433 | u32 *rbuf = buf; | |
4434 | int i; | |
4435 | ||
4436 | regs->version = FORCEDETH_REGS_VER; | |
4437 | spin_lock_irq(&np->lock); | |
78aea4fc | 4438 | for (i = 0; i <= np->register_size/sizeof(u32); i++) |
dc8216c1 MS |
4439 | rbuf[i] = readl(base + i*sizeof(u32)); |
4440 | spin_unlock_irq(&np->lock); | |
4441 | } | |
4442 | ||
4443 | static int nv_nway_reset(struct net_device *dev) | |
4444 | { | |
ac9c1897 | 4445 | struct fe_priv *np = netdev_priv(dev); |
dc8216c1 MS |
4446 | int ret; |
4447 | ||
dc8216c1 MS |
4448 | if (np->autoneg) { |
4449 | int bmcr; | |
4450 | ||
f9430a01 AA |
4451 | netif_carrier_off(dev); |
4452 | if (netif_running(dev)) { | |
4453 | nv_disable_irq(dev); | |
58dfd9c1 | 4454 | netif_tx_lock_bh(dev); |
e308a5d8 | 4455 | netif_addr_lock(dev); |
f9430a01 AA |
4456 | spin_lock(&np->lock); |
4457 | /* stop engines */ | |
36b30ea9 | 4458 | nv_stop_rxtx(dev); |
f9430a01 | 4459 | spin_unlock(&np->lock); |
e308a5d8 | 4460 | netif_addr_unlock(dev); |
58dfd9c1 | 4461 | netif_tx_unlock_bh(dev); |
1d397f36 | 4462 | netdev_info(dev, "link down\n"); |
f9430a01 AA |
4463 | } |
4464 | ||
dc8216c1 | 4465 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
edf7e5ec AA |
4466 | if (np->phy_model == PHY_MODEL_MARVELL_E3016) { |
4467 | bmcr |= BMCR_ANENABLE; | |
4468 | /* reset the phy in order for settings to stick*/ | |
4469 | if (phy_reset(dev, bmcr)) { | |
1d397f36 | 4470 | netdev_info(dev, "phy reset failed\n"); |
edf7e5ec AA |
4471 | return -EINVAL; |
4472 | } | |
4473 | } else { | |
4474 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4475 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4476 | } | |
dc8216c1 | 4477 | |
f9430a01 | 4478 | if (netif_running(dev)) { |
36b30ea9 | 4479 | nv_start_rxtx(dev); |
f9430a01 AA |
4480 | nv_enable_irq(dev); |
4481 | } | |
dc8216c1 MS |
4482 | ret = 0; |
4483 | } else { | |
4484 | ret = -EINVAL; | |
4485 | } | |
dc8216c1 MS |
4486 | |
4487 | return ret; | |
4488 | } | |
4489 | ||
eafa59f6 AA |
4490 | static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) |
4491 | { | |
4492 | struct fe_priv *np = netdev_priv(dev); | |
4493 | ||
4494 | ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; | |
eafa59f6 AA |
4495 | ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3; |
4496 | ||
4497 | ring->rx_pending = np->rx_ring_size; | |
eafa59f6 AA |
4498 | ring->tx_pending = np->tx_ring_size; |
4499 | } | |
4500 | ||
4501 | static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring) | |
4502 | { | |
4503 | struct fe_priv *np = netdev_priv(dev); | |
4504 | u8 __iomem *base = get_hwbase(dev); | |
761fcd9e | 4505 | u8 *rxtx_ring, *rx_skbuff, *tx_skbuff; |
eafa59f6 AA |
4506 | dma_addr_t ring_addr; |
4507 | ||
4508 | if (ring->rx_pending < RX_RING_MIN || | |
4509 | ring->tx_pending < TX_RING_MIN || | |
4510 | ring->rx_mini_pending != 0 || | |
4511 | ring->rx_jumbo_pending != 0 || | |
4512 | (np->desc_ver == DESC_VER_1 && | |
4513 | (ring->rx_pending > RING_MAX_DESC_VER_1 || | |
4514 | ring->tx_pending > RING_MAX_DESC_VER_1)) || | |
4515 | (np->desc_ver != DESC_VER_1 && | |
4516 | (ring->rx_pending > RING_MAX_DESC_VER_2_3 || | |
4517 | ring->tx_pending > RING_MAX_DESC_VER_2_3))) { | |
4518 | return -EINVAL; | |
4519 | } | |
4520 | ||
4521 | /* allocate new rings */ | |
36b30ea9 | 4522 | if (!nv_optimized(np)) { |
eafa59f6 AA |
4523 | rxtx_ring = pci_alloc_consistent(np->pci_dev, |
4524 | sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), | |
4525 | &ring_addr); | |
4526 | } else { | |
4527 | rxtx_ring = pci_alloc_consistent(np->pci_dev, | |
4528 | sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), | |
4529 | &ring_addr); | |
4530 | } | |
761fcd9e AA |
4531 | rx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->rx_pending, GFP_KERNEL); |
4532 | tx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->tx_pending, GFP_KERNEL); | |
4533 | if (!rxtx_ring || !rx_skbuff || !tx_skbuff) { | |
eafa59f6 | 4534 | /* fall back to old rings */ |
36b30ea9 | 4535 | if (!nv_optimized(np)) { |
f82a9352 | 4536 | if (rxtx_ring) |
eafa59f6 AA |
4537 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending), |
4538 | rxtx_ring, ring_addr); | |
4539 | } else { | |
4540 | if (rxtx_ring) | |
4541 | pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending), | |
4542 | rxtx_ring, ring_addr); | |
4543 | } | |
9b03b06b SJ |
4544 | |
4545 | kfree(rx_skbuff); | |
4546 | kfree(tx_skbuff); | |
eafa59f6 AA |
4547 | goto exit; |
4548 | } | |
4549 | ||
4550 | if (netif_running(dev)) { | |
4551 | nv_disable_irq(dev); | |
08d93575 | 4552 | nv_napi_disable(dev); |
58dfd9c1 | 4553 | netif_tx_lock_bh(dev); |
e308a5d8 | 4554 | netif_addr_lock(dev); |
eafa59f6 AA |
4555 | spin_lock(&np->lock); |
4556 | /* stop engines */ | |
36b30ea9 | 4557 | nv_stop_rxtx(dev); |
eafa59f6 AA |
4558 | nv_txrx_reset(dev); |
4559 | /* drain queues */ | |
36b30ea9 | 4560 | nv_drain_rxtx(dev); |
eafa59f6 AA |
4561 | /* delete queues */ |
4562 | free_rings(dev); | |
4563 | } | |
4564 | ||
4565 | /* set new values */ | |
4566 | np->rx_ring_size = ring->rx_pending; | |
4567 | np->tx_ring_size = ring->tx_pending; | |
36b30ea9 JG |
4568 | |
4569 | if (!nv_optimized(np)) { | |
78aea4fc | 4570 | np->rx_ring.orig = (struct ring_desc *)rxtx_ring; |
eafa59f6 AA |
4571 | np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; |
4572 | } else { | |
78aea4fc | 4573 | np->rx_ring.ex = (struct ring_desc_ex *)rxtx_ring; |
eafa59f6 AA |
4574 | np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; |
4575 | } | |
78aea4fc SJ |
4576 | np->rx_skb = (struct nv_skb_map *)rx_skbuff; |
4577 | np->tx_skb = (struct nv_skb_map *)tx_skbuff; | |
eafa59f6 AA |
4578 | np->ring_addr = ring_addr; |
4579 | ||
761fcd9e AA |
4580 | memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size); |
4581 | memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size); | |
eafa59f6 AA |
4582 | |
4583 | if (netif_running(dev)) { | |
4584 | /* reinit driver view of the queues */ | |
4585 | set_bufsize(dev); | |
4586 | if (nv_init_ring(dev)) { | |
4587 | if (!np->in_shutdown) | |
4588 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
4589 | } | |
4590 | ||
4591 | /* reinit nic view of the queues */ | |
4592 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
4593 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
78aea4fc | 4594 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
eafa59f6 AA |
4595 | base + NvRegRingSizes); |
4596 | pci_push(base); | |
4597 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
4598 | pci_push(base); | |
4599 | ||
4600 | /* restart engines */ | |
36b30ea9 | 4601 | nv_start_rxtx(dev); |
eafa59f6 | 4602 | spin_unlock(&np->lock); |
e308a5d8 | 4603 | netif_addr_unlock(dev); |
58dfd9c1 | 4604 | netif_tx_unlock_bh(dev); |
08d93575 | 4605 | nv_napi_enable(dev); |
eafa59f6 AA |
4606 | nv_enable_irq(dev); |
4607 | } | |
4608 | return 0; | |
4609 | exit: | |
4610 | return -ENOMEM; | |
4611 | } | |
4612 | ||
b6d0773f AA |
4613 | static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) |
4614 | { | |
4615 | struct fe_priv *np = netdev_priv(dev); | |
4616 | ||
4617 | pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0; | |
4618 | pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0; | |
4619 | pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0; | |
4620 | } | |
4621 | ||
4622 | static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause) | |
4623 | { | |
4624 | struct fe_priv *np = netdev_priv(dev); | |
4625 | int adv, bmcr; | |
4626 | ||
4627 | if ((!np->autoneg && np->duplex == 0) || | |
4628 | (np->autoneg && !pause->autoneg && np->duplex == 0)) { | |
1d397f36 | 4629 | netdev_info(dev, "can not set pause settings when forced link is in half duplex\n"); |
b6d0773f AA |
4630 | return -EINVAL; |
4631 | } | |
4632 | if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) { | |
1d397f36 | 4633 | netdev_info(dev, "hardware does not support tx pause frames\n"); |
b6d0773f AA |
4634 | return -EINVAL; |
4635 | } | |
4636 | ||
4637 | netif_carrier_off(dev); | |
4638 | if (netif_running(dev)) { | |
4639 | nv_disable_irq(dev); | |
58dfd9c1 | 4640 | netif_tx_lock_bh(dev); |
e308a5d8 | 4641 | netif_addr_lock(dev); |
b6d0773f AA |
4642 | spin_lock(&np->lock); |
4643 | /* stop engines */ | |
36b30ea9 | 4644 | nv_stop_rxtx(dev); |
b6d0773f | 4645 | spin_unlock(&np->lock); |
e308a5d8 | 4646 | netif_addr_unlock(dev); |
58dfd9c1 | 4647 | netif_tx_unlock_bh(dev); |
b6d0773f AA |
4648 | } |
4649 | ||
4650 | np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ); | |
4651 | if (pause->rx_pause) | |
4652 | np->pause_flags |= NV_PAUSEFRAME_RX_REQ; | |
4653 | if (pause->tx_pause) | |
4654 | np->pause_flags |= NV_PAUSEFRAME_TX_REQ; | |
4655 | ||
4656 | if (np->autoneg && pause->autoneg) { | |
4657 | np->pause_flags |= NV_PAUSEFRAME_AUTONEG; | |
4658 | ||
4659 | adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ); | |
4660 | adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); | |
25985edc | 4661 | if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisements but disable tx pause */ |
b6d0773f AA |
4662 | adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
4663 | if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) | |
4664 | adv |= ADVERTISE_PAUSE_ASYM; | |
4665 | mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv); | |
4666 | ||
4667 | if (netif_running(dev)) | |
1d397f36 | 4668 | netdev_info(dev, "link down\n"); |
b6d0773f AA |
4669 | bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); |
4670 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
4671 | mii_rw(dev, np->phyaddr, MII_BMCR, bmcr); | |
4672 | } else { | |
4673 | np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE); | |
4674 | if (pause->rx_pause) | |
4675 | np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE; | |
4676 | if (pause->tx_pause) | |
4677 | np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE; | |
4678 | ||
4679 | if (!netif_running(dev)) | |
4680 | nv_update_linkspeed(dev); | |
4681 | else | |
4682 | nv_update_pause(dev, np->pause_flags); | |
4683 | } | |
4684 | ||
4685 | if (netif_running(dev)) { | |
36b30ea9 | 4686 | nv_start_rxtx(dev); |
b6d0773f AA |
4687 | nv_enable_irq(dev); |
4688 | } | |
4689 | return 0; | |
4690 | } | |
4691 | ||
c8f44aff | 4692 | static int nv_set_loopback(struct net_device *dev, netdev_features_t features) |
e19df76a SH |
4693 | { |
4694 | struct fe_priv *np = netdev_priv(dev); | |
4695 | unsigned long flags; | |
4696 | u32 miicontrol; | |
4697 | int err, retval = 0; | |
4698 | ||
4699 | spin_lock_irqsave(&np->lock, flags); | |
4700 | miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
4701 | if (features & NETIF_F_LOOPBACK) { | |
4702 | if (miicontrol & BMCR_LOOPBACK) { | |
4703 | spin_unlock_irqrestore(&np->lock, flags); | |
4704 | netdev_info(dev, "Loopback already enabled\n"); | |
4705 | return 0; | |
4706 | } | |
4707 | nv_disable_irq(dev); | |
4708 | /* Turn on loopback mode */ | |
4709 | miicontrol |= BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000; | |
4710 | err = mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol); | |
4711 | if (err) { | |
4712 | retval = PHY_ERROR; | |
4713 | spin_unlock_irqrestore(&np->lock, flags); | |
4714 | phy_init(dev); | |
4715 | } else { | |
4716 | if (netif_running(dev)) { | |
4717 | /* Force 1000 Mbps full-duplex */ | |
4718 | nv_force_linkspeed(dev, NVREG_LINKSPEED_1000, | |
4719 | 1); | |
4720 | /* Force link up */ | |
4721 | netif_carrier_on(dev); | |
4722 | } | |
4723 | spin_unlock_irqrestore(&np->lock, flags); | |
4724 | netdev_info(dev, | |
4725 | "Internal PHY loopback mode enabled.\n"); | |
4726 | } | |
4727 | } else { | |
4728 | if (!(miicontrol & BMCR_LOOPBACK)) { | |
4729 | spin_unlock_irqrestore(&np->lock, flags); | |
4730 | netdev_info(dev, "Loopback already disabled\n"); | |
4731 | return 0; | |
4732 | } | |
4733 | nv_disable_irq(dev); | |
4734 | /* Turn off loopback */ | |
4735 | spin_unlock_irqrestore(&np->lock, flags); | |
4736 | netdev_info(dev, "Internal PHY loopback mode disabled.\n"); | |
4737 | phy_init(dev); | |
4738 | } | |
4739 | msleep(500); | |
4740 | spin_lock_irqsave(&np->lock, flags); | |
4741 | nv_enable_irq(dev); | |
4742 | spin_unlock_irqrestore(&np->lock, flags); | |
4743 | ||
4744 | return retval; | |
4745 | } | |
4746 | ||
c8f44aff MM |
4747 | static netdev_features_t nv_fix_features(struct net_device *dev, |
4748 | netdev_features_t features) | |
5ed2616f | 4749 | { |
569e1463 MM |
4750 | /* vlan is dependent on rx checksum offload */ |
4751 | if (features & (NETIF_F_HW_VLAN_TX|NETIF_F_HW_VLAN_RX)) | |
4752 | features |= NETIF_F_RXCSUM; | |
4753 | ||
4754 | return features; | |
5ed2616f AA |
4755 | } |
4756 | ||
c8f44aff | 4757 | static void nv_vlan_mode(struct net_device *dev, netdev_features_t features) |
3326c784 JP |
4758 | { |
4759 | struct fe_priv *np = get_nvpriv(dev); | |
4760 | ||
4761 | spin_lock_irq(&np->lock); | |
4762 | ||
4763 | if (features & NETIF_F_HW_VLAN_RX) | |
4764 | np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP; | |
4765 | else | |
4766 | np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP; | |
4767 | ||
4768 | if (features & NETIF_F_HW_VLAN_TX) | |
4769 | np->txrxctl_bits |= NVREG_TXRXCTL_VLANINS; | |
4770 | else | |
4771 | np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS; | |
4772 | ||
4773 | writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
4774 | ||
4775 | spin_unlock_irq(&np->lock); | |
4776 | } | |
4777 | ||
c8f44aff | 4778 | static int nv_set_features(struct net_device *dev, netdev_features_t features) |
5ed2616f AA |
4779 | { |
4780 | struct fe_priv *np = netdev_priv(dev); | |
4781 | u8 __iomem *base = get_hwbase(dev); | |
c8f44aff | 4782 | netdev_features_t changed = dev->features ^ features; |
e19df76a SH |
4783 | int retval; |
4784 | ||
4785 | if ((changed & NETIF_F_LOOPBACK) && netif_running(dev)) { | |
4786 | retval = nv_set_loopback(dev, features); | |
4787 | if (retval != 0) | |
4788 | return retval; | |
4789 | } | |
5ed2616f | 4790 | |
569e1463 MM |
4791 | if (changed & NETIF_F_RXCSUM) { |
4792 | spin_lock_irq(&np->lock); | |
5ed2616f | 4793 | |
569e1463 MM |
4794 | if (features & NETIF_F_RXCSUM) |
4795 | np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; | |
4796 | else | |
4797 | np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK; | |
5ed2616f | 4798 | |
569e1463 MM |
4799 | if (netif_running(dev)) |
4800 | writel(np->txrxctl_bits, base + NvRegTxRxControl); | |
5ed2616f | 4801 | |
569e1463 MM |
4802 | spin_unlock_irq(&np->lock); |
4803 | } | |
5ed2616f | 4804 | |
3326c784 JP |
4805 | if (changed & (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX)) |
4806 | nv_vlan_mode(dev, features); | |
4807 | ||
569e1463 | 4808 | return 0; |
5ed2616f AA |
4809 | } |
4810 | ||
b9f2c044 | 4811 | static int nv_get_sset_count(struct net_device *dev, int sset) |
52da3578 AA |
4812 | { |
4813 | struct fe_priv *np = netdev_priv(dev); | |
4814 | ||
b9f2c044 JG |
4815 | switch (sset) { |
4816 | case ETH_SS_TEST: | |
4817 | if (np->driver_data & DEV_HAS_TEST_EXTENDED) | |
4818 | return NV_TEST_COUNT_EXTENDED; | |
4819 | else | |
4820 | return NV_TEST_COUNT_BASE; | |
4821 | case ETH_SS_STATS: | |
8ed1454a AA |
4822 | if (np->driver_data & DEV_HAS_STATISTICS_V3) |
4823 | return NV_DEV_STATISTICS_V3_COUNT; | |
b9f2c044 JG |
4824 | else if (np->driver_data & DEV_HAS_STATISTICS_V2) |
4825 | return NV_DEV_STATISTICS_V2_COUNT; | |
8ed1454a AA |
4826 | else if (np->driver_data & DEV_HAS_STATISTICS_V1) |
4827 | return NV_DEV_STATISTICS_V1_COUNT; | |
b9f2c044 JG |
4828 | else |
4829 | return 0; | |
4830 | default: | |
4831 | return -EOPNOTSUPP; | |
4832 | } | |
52da3578 AA |
4833 | } |
4834 | ||
f5d827ae | 4835 | static void nv_get_ethtool_stats(struct net_device *dev, |
4836 | struct ethtool_stats *estats, u64 *buffer) | |
4837 | __acquires(&netdev_priv(dev)->hwstats_lock) | |
4838 | __releases(&netdev_priv(dev)->hwstats_lock) | |
52da3578 AA |
4839 | { |
4840 | struct fe_priv *np = netdev_priv(dev); | |
4841 | ||
f5d827ae | 4842 | spin_lock_bh(&np->hwstats_lock); |
4843 | nv_update_stats(dev); | |
4844 | memcpy(buffer, &np->estats, | |
4845 | nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64)); | |
4846 | spin_unlock_bh(&np->hwstats_lock); | |
9589c77a AA |
4847 | } |
4848 | ||
4849 | static int nv_link_test(struct net_device *dev) | |
4850 | { | |
4851 | struct fe_priv *np = netdev_priv(dev); | |
4852 | int mii_status; | |
4853 | ||
4854 | mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
4855 | mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
4856 | ||
4857 | /* check phy link status */ | |
4858 | if (!(mii_status & BMSR_LSTATUS)) | |
4859 | return 0; | |
4860 | else | |
4861 | return 1; | |
4862 | } | |
4863 | ||
4864 | static int nv_register_test(struct net_device *dev) | |
4865 | { | |
4866 | u8 __iomem *base = get_hwbase(dev); | |
4867 | int i = 0; | |
4868 | u32 orig_read, new_read; | |
4869 | ||
4870 | do { | |
4871 | orig_read = readl(base + nv_registers_test[i].reg); | |
4872 | ||
4873 | /* xor with mask to toggle bits */ | |
4874 | orig_read ^= nv_registers_test[i].mask; | |
4875 | ||
4876 | writel(orig_read, base + nv_registers_test[i].reg); | |
4877 | ||
4878 | new_read = readl(base + nv_registers_test[i].reg); | |
4879 | ||
4880 | if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask)) | |
4881 | return 0; | |
4882 | ||
4883 | /* restore original value */ | |
4884 | orig_read ^= nv_registers_test[i].mask; | |
4885 | writel(orig_read, base + nv_registers_test[i].reg); | |
4886 | ||
4887 | } while (nv_registers_test[++i].reg != 0); | |
4888 | ||
4889 | return 1; | |
4890 | } | |
4891 | ||
4892 | static int nv_interrupt_test(struct net_device *dev) | |
4893 | { | |
4894 | struct fe_priv *np = netdev_priv(dev); | |
4895 | u8 __iomem *base = get_hwbase(dev); | |
4896 | int ret = 1; | |
4897 | int testcnt; | |
4898 | u32 save_msi_flags, save_poll_interval = 0; | |
4899 | ||
4900 | if (netif_running(dev)) { | |
4901 | /* free current irq */ | |
4902 | nv_free_irq(dev); | |
4903 | save_poll_interval = readl(base+NvRegPollingInterval); | |
4904 | } | |
4905 | ||
4906 | /* flag to test interrupt handler */ | |
4907 | np->intr_test = 0; | |
4908 | ||
4909 | /* setup test irq */ | |
4910 | save_msi_flags = np->msi_flags; | |
4911 | np->msi_flags &= ~NV_MSI_X_VECTORS_MASK; | |
4912 | np->msi_flags |= 0x001; /* setup 1 vector */ | |
4913 | if (nv_request_irq(dev, 1)) | |
4914 | return 0; | |
4915 | ||
4916 | /* setup timer interrupt */ | |
4917 | writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); | |
4918 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); | |
4919 | ||
4920 | nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER); | |
4921 | ||
4922 | /* wait for at least one interrupt */ | |
4923 | msleep(100); | |
4924 | ||
4925 | spin_lock_irq(&np->lock); | |
4926 | ||
4927 | /* flag should be set within ISR */ | |
4928 | testcnt = np->intr_test; | |
4929 | if (!testcnt) | |
4930 | ret = 2; | |
4931 | ||
4932 | nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER); | |
4933 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) | |
4934 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); | |
4935 | else | |
4936 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); | |
4937 | ||
4938 | spin_unlock_irq(&np->lock); | |
4939 | ||
4940 | nv_free_irq(dev); | |
4941 | ||
4942 | np->msi_flags = save_msi_flags; | |
4943 | ||
4944 | if (netif_running(dev)) { | |
4945 | writel(save_poll_interval, base + NvRegPollingInterval); | |
4946 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); | |
4947 | /* restore original irq */ | |
4948 | if (nv_request_irq(dev, 0)) | |
4949 | return 0; | |
4950 | } | |
4951 | ||
4952 | return ret; | |
4953 | } | |
4954 | ||
4955 | static int nv_loopback_test(struct net_device *dev) | |
4956 | { | |
4957 | struct fe_priv *np = netdev_priv(dev); | |
4958 | u8 __iomem *base = get_hwbase(dev); | |
4959 | struct sk_buff *tx_skb, *rx_skb; | |
4960 | dma_addr_t test_dma_addr; | |
4961 | u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); | |
f82a9352 | 4962 | u32 flags; |
9589c77a AA |
4963 | int len, i, pkt_len; |
4964 | u8 *pkt_data; | |
4965 | u32 filter_flags = 0; | |
4966 | u32 misc1_flags = 0; | |
4967 | int ret = 1; | |
4968 | ||
4969 | if (netif_running(dev)) { | |
4970 | nv_disable_irq(dev); | |
4971 | filter_flags = readl(base + NvRegPacketFilterFlags); | |
4972 | misc1_flags = readl(base + NvRegMisc1); | |
4973 | } else { | |
4974 | nv_txrx_reset(dev); | |
4975 | } | |
4976 | ||
4977 | /* reinit driver view of the rx queue */ | |
4978 | set_bufsize(dev); | |
4979 | nv_init_ring(dev); | |
4980 | ||
4981 | /* setup hardware for loopback */ | |
4982 | writel(NVREG_MISC1_FORCE, base + NvRegMisc1); | |
4983 | writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags); | |
4984 | ||
4985 | /* reinit nic view of the rx queue */ | |
4986 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
4987 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
78aea4fc | 4988 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
9589c77a AA |
4989 | base + NvRegRingSizes); |
4990 | pci_push(base); | |
4991 | ||
4992 | /* restart rx engine */ | |
36b30ea9 | 4993 | nv_start_rxtx(dev); |
9589c77a AA |
4994 | |
4995 | /* setup packet for tx */ | |
4996 | pkt_len = ETH_DATA_LEN; | |
dae2e9f4 | 4997 | tx_skb = netdev_alloc_skb(dev, pkt_len); |
46798c89 | 4998 | if (!tx_skb) { |
dae2e9f4 | 4999 | netdev_err(dev, "netdev_alloc_skb() failed during loopback test\n"); |
46798c89 JJ |
5000 | ret = 0; |
5001 | goto out; | |
5002 | } | |
8b5be268 ACM |
5003 | test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data, |
5004 | skb_tailroom(tx_skb), | |
5005 | PCI_DMA_FROMDEVICE); | |
9589c77a AA |
5006 | pkt_data = skb_put(tx_skb, pkt_len); |
5007 | for (i = 0; i < pkt_len; i++) | |
5008 | pkt_data[i] = (u8)(i & 0xff); | |
9589c77a | 5009 | |
36b30ea9 | 5010 | if (!nv_optimized(np)) { |
f82a9352 SH |
5011 | np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr); |
5012 | np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); | |
9589c77a | 5013 | } else { |
5bb7ea26 AV |
5014 | np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr)); |
5015 | np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr)); | |
f82a9352 | 5016 | np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra); |
9589c77a AA |
5017 | } |
5018 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
5019 | pci_push(get_hwbase(dev)); | |
5020 | ||
5021 | msleep(500); | |
5022 | ||
5023 | /* check for rx of the packet */ | |
36b30ea9 | 5024 | if (!nv_optimized(np)) { |
f82a9352 | 5025 | flags = le32_to_cpu(np->rx_ring.orig[0].flaglen); |
9589c77a AA |
5026 | len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver); |
5027 | ||
5028 | } else { | |
f82a9352 | 5029 | flags = le32_to_cpu(np->rx_ring.ex[0].flaglen); |
9589c77a AA |
5030 | len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver); |
5031 | } | |
5032 | ||
f82a9352 | 5033 | if (flags & NV_RX_AVAIL) { |
9589c77a AA |
5034 | ret = 0; |
5035 | } else if (np->desc_ver == DESC_VER_1) { | |
f82a9352 | 5036 | if (flags & NV_RX_ERROR) |
9589c77a AA |
5037 | ret = 0; |
5038 | } else { | |
78aea4fc | 5039 | if (flags & NV_RX2_ERROR) |
9589c77a | 5040 | ret = 0; |
9589c77a AA |
5041 | } |
5042 | ||
5043 | if (ret) { | |
5044 | if (len != pkt_len) { | |
5045 | ret = 0; | |
9589c77a | 5046 | } else { |
761fcd9e | 5047 | rx_skb = np->rx_skb[0].skb; |
9589c77a AA |
5048 | for (i = 0; i < pkt_len; i++) { |
5049 | if (rx_skb->data[i] != (u8)(i & 0xff)) { | |
5050 | ret = 0; | |
9589c77a AA |
5051 | break; |
5052 | } | |
5053 | } | |
5054 | } | |
9589c77a AA |
5055 | } |
5056 | ||
73a37079 | 5057 | pci_unmap_single(np->pci_dev, test_dma_addr, |
4305b541 | 5058 | (skb_end_pointer(tx_skb) - tx_skb->data), |
9589c77a AA |
5059 | PCI_DMA_TODEVICE); |
5060 | dev_kfree_skb_any(tx_skb); | |
46798c89 | 5061 | out: |
9589c77a | 5062 | /* stop engines */ |
36b30ea9 | 5063 | nv_stop_rxtx(dev); |
9589c77a AA |
5064 | nv_txrx_reset(dev); |
5065 | /* drain rx queue */ | |
36b30ea9 | 5066 | nv_drain_rxtx(dev); |
9589c77a AA |
5067 | |
5068 | if (netif_running(dev)) { | |
5069 | writel(misc1_flags, base + NvRegMisc1); | |
5070 | writel(filter_flags, base + NvRegPacketFilterFlags); | |
5071 | nv_enable_irq(dev); | |
5072 | } | |
5073 | ||
5074 | return ret; | |
5075 | } | |
5076 | ||
5077 | static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer) | |
5078 | { | |
5079 | struct fe_priv *np = netdev_priv(dev); | |
5080 | u8 __iomem *base = get_hwbase(dev); | |
5081 | int result; | |
b9f2c044 | 5082 | memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64)); |
9589c77a AA |
5083 | |
5084 | if (!nv_link_test(dev)) { | |
5085 | test->flags |= ETH_TEST_FL_FAILED; | |
5086 | buffer[0] = 1; | |
5087 | } | |
5088 | ||
5089 | if (test->flags & ETH_TEST_FL_OFFLINE) { | |
5090 | if (netif_running(dev)) { | |
5091 | netif_stop_queue(dev); | |
08d93575 | 5092 | nv_napi_disable(dev); |
58dfd9c1 | 5093 | netif_tx_lock_bh(dev); |
e308a5d8 | 5094 | netif_addr_lock(dev); |
9589c77a AA |
5095 | spin_lock_irq(&np->lock); |
5096 | nv_disable_hw_interrupts(dev, np->irqmask); | |
78aea4fc | 5097 | if (!(np->msi_flags & NV_MSI_X_ENABLED)) |
9589c77a | 5098 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
78aea4fc | 5099 | else |
9589c77a | 5100 | writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus); |
9589c77a | 5101 | /* stop engines */ |
36b30ea9 | 5102 | nv_stop_rxtx(dev); |
9589c77a AA |
5103 | nv_txrx_reset(dev); |
5104 | /* drain rx queue */ | |
36b30ea9 | 5105 | nv_drain_rxtx(dev); |
9589c77a | 5106 | spin_unlock_irq(&np->lock); |
e308a5d8 | 5107 | netif_addr_unlock(dev); |
58dfd9c1 | 5108 | netif_tx_unlock_bh(dev); |
9589c77a AA |
5109 | } |
5110 | ||
5111 | if (!nv_register_test(dev)) { | |
5112 | test->flags |= ETH_TEST_FL_FAILED; | |
5113 | buffer[1] = 1; | |
5114 | } | |
5115 | ||
5116 | result = nv_interrupt_test(dev); | |
5117 | if (result != 1) { | |
5118 | test->flags |= ETH_TEST_FL_FAILED; | |
5119 | buffer[2] = 1; | |
5120 | } | |
5121 | if (result == 0) { | |
5122 | /* bail out */ | |
5123 | return; | |
5124 | } | |
5125 | ||
5126 | if (!nv_loopback_test(dev)) { | |
5127 | test->flags |= ETH_TEST_FL_FAILED; | |
5128 | buffer[3] = 1; | |
5129 | } | |
5130 | ||
5131 | if (netif_running(dev)) { | |
5132 | /* reinit driver view of the rx queue */ | |
5133 | set_bufsize(dev); | |
5134 | if (nv_init_ring(dev)) { | |
5135 | if (!np->in_shutdown) | |
5136 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
5137 | } | |
5138 | /* reinit nic view of the rx queue */ | |
5139 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); | |
5140 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); | |
78aea4fc | 5141 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
9589c77a AA |
5142 | base + NvRegRingSizes); |
5143 | pci_push(base); | |
5144 | writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); | |
5145 | pci_push(base); | |
5146 | /* restart rx engine */ | |
36b30ea9 | 5147 | nv_start_rxtx(dev); |
9589c77a | 5148 | netif_start_queue(dev); |
08d93575 | 5149 | nv_napi_enable(dev); |
9589c77a AA |
5150 | nv_enable_hw_interrupts(dev, np->irqmask); |
5151 | } | |
5152 | } | |
5153 | } | |
5154 | ||
52da3578 AA |
5155 | static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer) |
5156 | { | |
5157 | switch (stringset) { | |
5158 | case ETH_SS_STATS: | |
b9f2c044 | 5159 | memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str)); |
52da3578 | 5160 | break; |
9589c77a | 5161 | case ETH_SS_TEST: |
b9f2c044 | 5162 | memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str)); |
9589c77a | 5163 | break; |
52da3578 AA |
5164 | } |
5165 | } | |
5166 | ||
7282d491 | 5167 | static const struct ethtool_ops ops = { |
1da177e4 LT |
5168 | .get_drvinfo = nv_get_drvinfo, |
5169 | .get_link = ethtool_op_get_link, | |
5170 | .get_wol = nv_get_wol, | |
5171 | .set_wol = nv_set_wol, | |
5172 | .get_settings = nv_get_settings, | |
5173 | .set_settings = nv_set_settings, | |
dc8216c1 MS |
5174 | .get_regs_len = nv_get_regs_len, |
5175 | .get_regs = nv_get_regs, | |
5176 | .nway_reset = nv_nway_reset, | |
eafa59f6 AA |
5177 | .get_ringparam = nv_get_ringparam, |
5178 | .set_ringparam = nv_set_ringparam, | |
b6d0773f AA |
5179 | .get_pauseparam = nv_get_pauseparam, |
5180 | .set_pauseparam = nv_set_pauseparam, | |
52da3578 | 5181 | .get_strings = nv_get_strings, |
52da3578 | 5182 | .get_ethtool_stats = nv_get_ethtool_stats, |
b9f2c044 | 5183 | .get_sset_count = nv_get_sset_count, |
9589c77a | 5184 | .self_test = nv_self_test, |
1da177e4 LT |
5185 | }; |
5186 | ||
7e680c22 AA |
5187 | /* The mgmt unit and driver use a semaphore to access the phy during init */ |
5188 | static int nv_mgmt_acquire_sema(struct net_device *dev) | |
5189 | { | |
cac1c52c | 5190 | struct fe_priv *np = netdev_priv(dev); |
7e680c22 AA |
5191 | u8 __iomem *base = get_hwbase(dev); |
5192 | int i; | |
5193 | u32 tx_ctrl, mgmt_sema; | |
5194 | ||
5195 | for (i = 0; i < 10; i++) { | |
5196 | mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK; | |
5197 | if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE) | |
5198 | break; | |
5199 | msleep(500); | |
5200 | } | |
5201 | ||
5202 | if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE) | |
5203 | return 0; | |
5204 | ||
5205 | for (i = 0; i < 2; i++) { | |
5206 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5207 | tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ; | |
5208 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
5209 | ||
5210 | /* verify that semaphore was acquired */ | |
5211 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5212 | if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) && | |
cac1c52c AA |
5213 | ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) { |
5214 | np->mgmt_sema = 1; | |
7e680c22 | 5215 | return 1; |
78aea4fc | 5216 | } else |
7e680c22 AA |
5217 | udelay(50); |
5218 | } | |
5219 | ||
5220 | return 0; | |
5221 | } | |
5222 | ||
cac1c52c AA |
5223 | static void nv_mgmt_release_sema(struct net_device *dev) |
5224 | { | |
5225 | struct fe_priv *np = netdev_priv(dev); | |
5226 | u8 __iomem *base = get_hwbase(dev); | |
5227 | u32 tx_ctrl; | |
5228 | ||
5229 | if (np->driver_data & DEV_HAS_MGMT_UNIT) { | |
5230 | if (np->mgmt_sema) { | |
5231 | tx_ctrl = readl(base + NvRegTransmitterControl); | |
5232 | tx_ctrl &= ~NVREG_XMITCTL_HOST_SEMA_ACQ; | |
5233 | writel(tx_ctrl, base + NvRegTransmitterControl); | |
5234 | } | |
5235 | } | |
5236 | } | |
5237 | ||
5238 | ||
5239 | static int nv_mgmt_get_version(struct net_device *dev) | |
5240 | { | |
5241 | struct fe_priv *np = netdev_priv(dev); | |
5242 | u8 __iomem *base = get_hwbase(dev); | |
5243 | u32 data_ready = readl(base + NvRegTransmitterControl); | |
5244 | u32 data_ready2 = 0; | |
5245 | unsigned long start; | |
5246 | int ready = 0; | |
5247 | ||
5248 | writel(NVREG_MGMTUNITGETVERSION, base + NvRegMgmtUnitGetVersion); | |
5249 | writel(data_ready ^ NVREG_XMITCTL_DATA_START, base + NvRegTransmitterControl); | |
5250 | start = jiffies; | |
5251 | while (time_before(jiffies, start + 5*HZ)) { | |
5252 | data_ready2 = readl(base + NvRegTransmitterControl); | |
5253 | if ((data_ready & NVREG_XMITCTL_DATA_READY) != (data_ready2 & NVREG_XMITCTL_DATA_READY)) { | |
5254 | ready = 1; | |
5255 | break; | |
5256 | } | |
5257 | schedule_timeout_uninterruptible(1); | |
5258 | } | |
5259 | ||
5260 | if (!ready || (data_ready2 & NVREG_XMITCTL_DATA_ERROR)) | |
5261 | return 0; | |
5262 | ||
5263 | np->mgmt_version = readl(base + NvRegMgmtUnitVersion) & NVREG_MGMTUNITVERSION; | |
5264 | ||
5265 | return 1; | |
5266 | } | |
5267 | ||
1da177e4 LT |
5268 | static int nv_open(struct net_device *dev) |
5269 | { | |
ac9c1897 | 5270 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 | 5271 | u8 __iomem *base = get_hwbase(dev); |
d33a73c8 AA |
5272 | int ret = 1; |
5273 | int oom, i; | |
a433686c | 5274 | u32 low; |
1da177e4 | 5275 | |
cb52deba ES |
5276 | /* power up phy */ |
5277 | mii_rw(dev, np->phyaddr, MII_BMCR, | |
5278 | mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ) & ~BMCR_PDOWN); | |
5279 | ||
88d7d8b0 | 5280 | nv_txrx_gate(dev, false); |
f1489653 | 5281 | /* erase previous misconfiguration */ |
86a0f043 AA |
5282 | if (np->driver_data & DEV_HAS_POWER_CNTRL) |
5283 | nv_mac_reset(dev); | |
1da177e4 LT |
5284 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); |
5285 | writel(0, base + NvRegMulticastAddrB); | |
bb9a4fd1 AA |
5286 | writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA); |
5287 | writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB); | |
1da177e4 LT |
5288 | writel(0, base + NvRegPacketFilterFlags); |
5289 | ||
5290 | writel(0, base + NvRegTransmitterControl); | |
5291 | writel(0, base + NvRegReceiverControl); | |
5292 | ||
5293 | writel(0, base + NvRegAdapterControl); | |
5294 | ||
eb91f61b AA |
5295 | if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) |
5296 | writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame); | |
5297 | ||
f1489653 | 5298 | /* initialize descriptor rings */ |
d81c0983 | 5299 | set_bufsize(dev); |
1da177e4 LT |
5300 | oom = nv_init_ring(dev); |
5301 | ||
5302 | writel(0, base + NvRegLinkSpeed); | |
5070d340 | 5303 | writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll); |
1da177e4 LT |
5304 | nv_txrx_reset(dev); |
5305 | writel(0, base + NvRegUnknownSetupReg6); | |
5306 | ||
5307 | np->in_shutdown = 0; | |
5308 | ||
f1489653 | 5309 | /* give hw rings */ |
0832b25a | 5310 | setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING); |
78aea4fc | 5311 | writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT), |
1da177e4 LT |
5312 | base + NvRegRingSizes); |
5313 | ||
1da177e4 | 5314 | writel(np->linkspeed, base + NvRegLinkSpeed); |
95d161cb AA |
5315 | if (np->desc_ver == DESC_VER_1) |
5316 | writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark); | |
5317 | else | |
5318 | writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark); | |
8a4ae7f2 | 5319 | writel(np->txrxctl_bits, base + NvRegTxRxControl); |
ee407b02 | 5320 | writel(np->vlanctl_bits, base + NvRegVlanControl); |
1da177e4 | 5321 | pci_push(base); |
8a4ae7f2 | 5322 | writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl); |
344d0dce JP |
5323 | if (reg_delay(dev, NvRegUnknownSetupReg5, |
5324 | NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31, | |
5325 | NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX)) | |
1d397f36 JP |
5326 | netdev_info(dev, |
5327 | "%s: SetupReg5, Bit 31 remained off\n", __func__); | |
1da177e4 | 5328 | |
7e680c22 | 5329 | writel(0, base + NvRegMIIMask); |
1da177e4 | 5330 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
eb798428 | 5331 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 | 5332 | |
1da177e4 LT |
5333 | writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1); |
5334 | writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus); | |
5335 | writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags); | |
d81c0983 | 5336 | writel(np->rx_buf_sz, base + NvRegOffloadConfig); |
1da177e4 LT |
5337 | |
5338 | writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus); | |
a433686c AA |
5339 | |
5340 | get_random_bytes(&low, sizeof(low)); | |
5341 | low &= NVREG_SLOTTIME_MASK; | |
5342 | if (np->desc_ver == DESC_VER_1) { | |
5343 | writel(low|NVREG_SLOTTIME_DEFAULT, base + NvRegSlotTime); | |
5344 | } else { | |
5345 | if (!(np->driver_data & DEV_HAS_GEAR_MODE)) { | |
5346 | /* setup legacy backoff */ | |
5347 | writel(NVREG_SLOTTIME_LEGBF_ENABLED|NVREG_SLOTTIME_10_100_FULL|low, base + NvRegSlotTime); | |
5348 | } else { | |
5349 | writel(NVREG_SLOTTIME_10_100_FULL, base + NvRegSlotTime); | |
5350 | nv_gear_backoff_reseed(dev); | |
5351 | } | |
5352 | } | |
9744e218 AA |
5353 | writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral); |
5354 | writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral); | |
a971c324 AA |
5355 | if (poll_interval == -1) { |
5356 | if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) | |
5357 | writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval); | |
5358 | else | |
5359 | writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); | |
78aea4fc | 5360 | } else |
a971c324 | 5361 | writel(poll_interval & 0xFFFF, base + NvRegPollingInterval); |
1da177e4 LT |
5362 | writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); |
5363 | writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING, | |
5364 | base + NvRegAdapterControl); | |
5365 | writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed); | |
7e680c22 | 5366 | writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask); |
c42d9df9 AA |
5367 | if (np->wolenabled) |
5368 | writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags); | |
1da177e4 LT |
5369 | |
5370 | i = readl(base + NvRegPowerState); | |
78aea4fc | 5371 | if ((i & NVREG_POWERSTATE_POWEREDUP) == 0) |
1da177e4 LT |
5372 | writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState); |
5373 | ||
5374 | pci_push(base); | |
5375 | udelay(10); | |
5376 | writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState); | |
5377 | ||
84b3932b | 5378 | nv_disable_hw_interrupts(dev, np->irqmask); |
1da177e4 | 5379 | pci_push(base); |
eb798428 | 5380 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 LT |
5381 | writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); |
5382 | pci_push(base); | |
5383 | ||
78aea4fc | 5384 | if (nv_request_irq(dev, 0)) |
84b3932b | 5385 | goto out_drain; |
1da177e4 LT |
5386 | |
5387 | /* ask for interrupts */ | |
84b3932b | 5388 | nv_enable_hw_interrupts(dev, np->irqmask); |
1da177e4 LT |
5389 | |
5390 | spin_lock_irq(&np->lock); | |
5391 | writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); | |
5392 | writel(0, base + NvRegMulticastAddrB); | |
bb9a4fd1 AA |
5393 | writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA); |
5394 | writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB); | |
1da177e4 LT |
5395 | writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); |
5396 | /* One manual link speed update: Interrupts are enabled, future link | |
5397 | * speed changes cause interrupts and are handled by nv_link_irq(). | |
5398 | */ | |
5399 | { | |
5400 | u32 miistat; | |
5401 | miistat = readl(base + NvRegMIIStatus); | |
eb798428 | 5402 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
1da177e4 | 5403 | } |
1b1b3c9b MS |
5404 | /* set linkspeed to invalid value, thus force nv_update_linkspeed |
5405 | * to init hw */ | |
5406 | np->linkspeed = 0; | |
1da177e4 | 5407 | ret = nv_update_linkspeed(dev); |
36b30ea9 | 5408 | nv_start_rxtx(dev); |
1da177e4 | 5409 | netif_start_queue(dev); |
08d93575 | 5410 | nv_napi_enable(dev); |
e27cdba5 | 5411 | |
1da177e4 LT |
5412 | if (ret) { |
5413 | netif_carrier_on(dev); | |
5414 | } else { | |
1d397f36 | 5415 | netdev_info(dev, "no link during initialization\n"); |
1da177e4 LT |
5416 | netif_carrier_off(dev); |
5417 | } | |
5418 | if (oom) | |
5419 | mod_timer(&np->oom_kick, jiffies + OOM_REFILL); | |
52da3578 AA |
5420 | |
5421 | /* start statistics timer */ | |
9c662435 | 5422 | if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3)) |
bfebbb88 DD |
5423 | mod_timer(&np->stats_poll, |
5424 | round_jiffies(jiffies + STATS_INTERVAL)); | |
52da3578 | 5425 | |
1da177e4 LT |
5426 | spin_unlock_irq(&np->lock); |
5427 | ||
e19df76a SH |
5428 | /* If the loopback feature was set while the device was down, make sure |
5429 | * that it's set correctly now. | |
5430 | */ | |
5431 | if (dev->features & NETIF_F_LOOPBACK) | |
5432 | nv_set_loopback(dev, dev->features); | |
5433 | ||
1da177e4 LT |
5434 | return 0; |
5435 | out_drain: | |
36b30ea9 | 5436 | nv_drain_rxtx(dev); |
1da177e4 LT |
5437 | return ret; |
5438 | } | |
5439 | ||
5440 | static int nv_close(struct net_device *dev) | |
5441 | { | |
ac9c1897 | 5442 | struct fe_priv *np = netdev_priv(dev); |
1da177e4 LT |
5443 | u8 __iomem *base; |
5444 | ||
5445 | spin_lock_irq(&np->lock); | |
5446 | np->in_shutdown = 1; | |
5447 | spin_unlock_irq(&np->lock); | |
08d93575 | 5448 | nv_napi_disable(dev); |
a7475906 | 5449 | synchronize_irq(np->pci_dev->irq); |
1da177e4 LT |
5450 | |
5451 | del_timer_sync(&np->oom_kick); | |
5452 | del_timer_sync(&np->nic_poll); | |
52da3578 | 5453 | del_timer_sync(&np->stats_poll); |
1da177e4 LT |
5454 | |
5455 | netif_stop_queue(dev); | |
5456 | spin_lock_irq(&np->lock); | |
36b30ea9 | 5457 | nv_stop_rxtx(dev); |
1da177e4 LT |
5458 | nv_txrx_reset(dev); |
5459 | ||
5460 | /* disable interrupts on the nic or we will lock up */ | |
5461 | base = get_hwbase(dev); | |
84b3932b | 5462 | nv_disable_hw_interrupts(dev, np->irqmask); |
1da177e4 | 5463 | pci_push(base); |
1da177e4 LT |
5464 | |
5465 | spin_unlock_irq(&np->lock); | |
5466 | ||
84b3932b | 5467 | nv_free_irq(dev); |
1da177e4 | 5468 | |
36b30ea9 | 5469 | nv_drain_rxtx(dev); |
1da177e4 | 5470 | |
5a9a8e32 | 5471 | if (np->wolenabled || !phy_power_down) { |
88d7d8b0 | 5472 | nv_txrx_gate(dev, false); |
2cc49a5c | 5473 | writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); |
1da177e4 | 5474 | nv_start_rx(dev); |
cb52deba ES |
5475 | } else { |
5476 | /* power down phy */ | |
5477 | mii_rw(dev, np->phyaddr, MII_BMCR, | |
5478 | mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ)|BMCR_PDOWN); | |
88d7d8b0 | 5479 | nv_txrx_gate(dev, true); |
2cc49a5c | 5480 | } |
1da177e4 LT |
5481 | |
5482 | /* FIXME: power down nic */ | |
5483 | ||
5484 | return 0; | |
5485 | } | |
5486 | ||
b94426bd SH |
5487 | static const struct net_device_ops nv_netdev_ops = { |
5488 | .ndo_open = nv_open, | |
5489 | .ndo_stop = nv_close, | |
f5d827ae | 5490 | .ndo_get_stats64 = nv_get_stats64, |
00829823 SH |
5491 | .ndo_start_xmit = nv_start_xmit, |
5492 | .ndo_tx_timeout = nv_tx_timeout, | |
5493 | .ndo_change_mtu = nv_change_mtu, | |
569e1463 MM |
5494 | .ndo_fix_features = nv_fix_features, |
5495 | .ndo_set_features = nv_set_features, | |
00829823 SH |
5496 | .ndo_validate_addr = eth_validate_addr, |
5497 | .ndo_set_mac_address = nv_set_mac_address, | |
afc4b13d | 5498 | .ndo_set_rx_mode = nv_set_multicast, |
00829823 SH |
5499 | #ifdef CONFIG_NET_POLL_CONTROLLER |
5500 | .ndo_poll_controller = nv_poll_controller, | |
5501 | #endif | |
5502 | }; | |
5503 | ||
5504 | static const struct net_device_ops nv_netdev_ops_optimized = { | |
5505 | .ndo_open = nv_open, | |
5506 | .ndo_stop = nv_close, | |
f5d827ae | 5507 | .ndo_get_stats64 = nv_get_stats64, |
00829823 | 5508 | .ndo_start_xmit = nv_start_xmit_optimized, |
b94426bd SH |
5509 | .ndo_tx_timeout = nv_tx_timeout, |
5510 | .ndo_change_mtu = nv_change_mtu, | |
569e1463 MM |
5511 | .ndo_fix_features = nv_fix_features, |
5512 | .ndo_set_features = nv_set_features, | |
b94426bd SH |
5513 | .ndo_validate_addr = eth_validate_addr, |
5514 | .ndo_set_mac_address = nv_set_mac_address, | |
afc4b13d | 5515 | .ndo_set_rx_mode = nv_set_multicast, |
b94426bd SH |
5516 | #ifdef CONFIG_NET_POLL_CONTROLLER |
5517 | .ndo_poll_controller = nv_poll_controller, | |
5518 | #endif | |
5519 | }; | |
5520 | ||
1da177e4 LT |
5521 | static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) |
5522 | { | |
5523 | struct net_device *dev; | |
5524 | struct fe_priv *np; | |
5525 | unsigned long addr; | |
5526 | u8 __iomem *base; | |
5527 | int err, i; | |
5070d340 | 5528 | u32 powerstate, txreg; |
7e680c22 AA |
5529 | u32 phystate_orig = 0, phystate; |
5530 | int phyinitialized = 0; | |
3f88ce49 JG |
5531 | static int printed_version; |
5532 | ||
5533 | if (!printed_version++) | |
294a554e JP |
5534 | pr_info("Reverse Engineered nForce ethernet driver. Version %s.\n", |
5535 | FORCEDETH_VERSION); | |
1da177e4 LT |
5536 | |
5537 | dev = alloc_etherdev(sizeof(struct fe_priv)); | |
5538 | err = -ENOMEM; | |
5539 | if (!dev) | |
5540 | goto out; | |
5541 | ||
ac9c1897 | 5542 | np = netdev_priv(dev); |
bea3348e | 5543 | np->dev = dev; |
1da177e4 LT |
5544 | np->pci_dev = pci_dev; |
5545 | spin_lock_init(&np->lock); | |
f5d827ae | 5546 | spin_lock_init(&np->hwstats_lock); |
1da177e4 LT |
5547 | SET_NETDEV_DEV(dev, &pci_dev->dev); |
5548 | ||
5549 | init_timer(&np->oom_kick); | |
5550 | np->oom_kick.data = (unsigned long) dev; | |
c061b18d | 5551 | np->oom_kick.function = nv_do_rx_refill; /* timer handler */ |
1da177e4 LT |
5552 | init_timer(&np->nic_poll); |
5553 | np->nic_poll.data = (unsigned long) dev; | |
c061b18d | 5554 | np->nic_poll.function = nv_do_nic_poll; /* timer handler */ |
8f5f6982 | 5555 | init_timer_deferrable(&np->stats_poll); |
52da3578 | 5556 | np->stats_poll.data = (unsigned long) dev; |
c061b18d | 5557 | np->stats_poll.function = nv_do_stats_poll; /* timer handler */ |
1da177e4 LT |
5558 | |
5559 | err = pci_enable_device(pci_dev); | |
3f88ce49 | 5560 | if (err) |
1da177e4 | 5561 | goto out_free; |
1da177e4 LT |
5562 | |
5563 | pci_set_master(pci_dev); | |
5564 | ||
5565 | err = pci_request_regions(pci_dev, DRV_NAME); | |
5566 | if (err < 0) | |
5567 | goto out_disable; | |
5568 | ||
9c662435 | 5569 | 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 |
5570 | np->register_size = NV_PCI_REGSZ_VER3; |
5571 | else if (id->driver_data & DEV_HAS_STATISTICS_V1) | |
86a0f043 AA |
5572 | np->register_size = NV_PCI_REGSZ_VER2; |
5573 | else | |
5574 | np->register_size = NV_PCI_REGSZ_VER1; | |
5575 | ||
1da177e4 LT |
5576 | err = -EINVAL; |
5577 | addr = 0; | |
5578 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
1da177e4 | 5579 | if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM && |
86a0f043 | 5580 | pci_resource_len(pci_dev, i) >= np->register_size) { |
1da177e4 LT |
5581 | addr = pci_resource_start(pci_dev, i); |
5582 | break; | |
5583 | } | |
5584 | } | |
5585 | if (i == DEVICE_COUNT_RESOURCE) { | |
b2ba08e6 | 5586 | dev_info(&pci_dev->dev, "Couldn't find register window\n"); |
1da177e4 LT |
5587 | goto out_relreg; |
5588 | } | |
5589 | ||
86a0f043 AA |
5590 | /* copy of driver data */ |
5591 | np->driver_data = id->driver_data; | |
9f3f7910 AA |
5592 | /* copy of device id */ |
5593 | np->device_id = id->device; | |
86a0f043 | 5594 | |
1da177e4 | 5595 | /* handle different descriptor versions */ |
ee73362c MS |
5596 | if (id->driver_data & DEV_HAS_HIGH_DMA) { |
5597 | /* packet format 3: supports 40-bit addressing */ | |
5598 | np->desc_ver = DESC_VER_3; | |
84b3932b | 5599 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_3; |
69fe3fd7 | 5600 | if (dma_64bit) { |
6afd142f | 5601 | if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(39))) |
b2ba08e6 JP |
5602 | dev_info(&pci_dev->dev, |
5603 | "64-bit DMA failed, using 32-bit addressing\n"); | |
3f88ce49 | 5604 | else |
69fe3fd7 | 5605 | dev->features |= NETIF_F_HIGHDMA; |
6afd142f | 5606 | if (pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(39))) { |
b2ba08e6 JP |
5607 | dev_info(&pci_dev->dev, |
5608 | "64-bit DMA (consistent) failed, using 32-bit ring buffers\n"); | |
69fe3fd7 | 5609 | } |
ee73362c MS |
5610 | } |
5611 | } else if (id->driver_data & DEV_HAS_LARGEDESC) { | |
5612 | /* packet format 2: supports jumbo frames */ | |
1da177e4 | 5613 | np->desc_ver = DESC_VER_2; |
8a4ae7f2 | 5614 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_2; |
ee73362c MS |
5615 | } else { |
5616 | /* original packet format */ | |
5617 | np->desc_ver = DESC_VER_1; | |
8a4ae7f2 | 5618 | np->txrxctl_bits = NVREG_TXRXCTL_DESC_1; |
d81c0983 | 5619 | } |
ee73362c MS |
5620 | |
5621 | np->pkt_limit = NV_PKTLIMIT_1; | |
5622 | if (id->driver_data & DEV_HAS_LARGEDESC) | |
5623 | np->pkt_limit = NV_PKTLIMIT_2; | |
5624 | ||
8a4ae7f2 MS |
5625 | if (id->driver_data & DEV_HAS_CHECKSUM) { |
5626 | np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; | |
569e1463 MM |
5627 | dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG | |
5628 | NETIF_F_TSO | NETIF_F_RXCSUM; | |
21828163 | 5629 | } |
8a4ae7f2 | 5630 | |
ee407b02 AA |
5631 | np->vlanctl_bits = 0; |
5632 | if (id->driver_data & DEV_HAS_VLAN) { | |
5633 | np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE; | |
0891b0e0 | 5634 | dev->hw_features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX; |
ee407b02 AA |
5635 | } |
5636 | ||
0891b0e0 JP |
5637 | dev->features |= dev->hw_features; |
5638 | ||
e19df76a SH |
5639 | /* Add loopback capability to the device. */ |
5640 | dev->hw_features |= NETIF_F_LOOPBACK; | |
5641 | ||
b6d0773f | 5642 | np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG; |
5289b4c4 AA |
5643 | if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) || |
5644 | (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) || | |
5645 | (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) { | |
b6d0773f | 5646 | np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ; |
eb91f61b | 5647 | } |
f3b197ac | 5648 | |
1da177e4 | 5649 | err = -ENOMEM; |
86a0f043 | 5650 | np->base = ioremap(addr, np->register_size); |
1da177e4 LT |
5651 | if (!np->base) |
5652 | goto out_relreg; | |
ee73362c | 5653 | |
eafa59f6 AA |
5654 | np->rx_ring_size = RX_RING_DEFAULT; |
5655 | np->tx_ring_size = TX_RING_DEFAULT; | |
eafa59f6 | 5656 | |
36b30ea9 | 5657 | if (!nv_optimized(np)) { |
ee73362c | 5658 | np->rx_ring.orig = pci_alloc_consistent(pci_dev, |
eafa59f6 | 5659 | sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size), |
ee73362c MS |
5660 | &np->ring_addr); |
5661 | if (!np->rx_ring.orig) | |
5662 | goto out_unmap; | |
eafa59f6 | 5663 | np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size]; |
ee73362c MS |
5664 | } else { |
5665 | np->rx_ring.ex = pci_alloc_consistent(pci_dev, | |
eafa59f6 | 5666 | sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size), |
ee73362c MS |
5667 | &np->ring_addr); |
5668 | if (!np->rx_ring.ex) | |
5669 | goto out_unmap; | |
eafa59f6 AA |
5670 | np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; |
5671 | } | |
dd00cc48 YP |
5672 | np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); |
5673 | np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); | |
761fcd9e | 5674 | if (!np->rx_skb || !np->tx_skb) |
eafa59f6 | 5675 | goto out_freering; |
1da177e4 | 5676 | |
36b30ea9 | 5677 | if (!nv_optimized(np)) |
00829823 | 5678 | dev->netdev_ops = &nv_netdev_ops; |
86b22b0d | 5679 | else |
00829823 | 5680 | dev->netdev_ops = &nv_netdev_ops_optimized; |
b94426bd | 5681 | |
bea3348e | 5682 | netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP); |
1da177e4 | 5683 | SET_ETHTOOL_OPS(dev, &ops); |
1da177e4 LT |
5684 | dev->watchdog_timeo = NV_WATCHDOG_TIMEO; |
5685 | ||
5686 | pci_set_drvdata(pci_dev, dev); | |
5687 | ||
5688 | /* read the mac address */ | |
5689 | base = get_hwbase(dev); | |
5690 | np->orig_mac[0] = readl(base + NvRegMacAddrA); | |
5691 | np->orig_mac[1] = readl(base + NvRegMacAddrB); | |
5692 | ||
5070d340 AA |
5693 | /* check the workaround bit for correct mac address order */ |
5694 | txreg = readl(base + NvRegTransmitPoll); | |
a376e79c | 5695 | if (id->driver_data & DEV_HAS_CORRECT_MACADDR) { |
5070d340 AA |
5696 | /* mac address is already in correct order */ |
5697 | dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff; | |
5698 | dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff; | |
5699 | dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff; | |
5700 | dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff; | |
5701 | dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff; | |
5702 | dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff; | |
a376e79c AA |
5703 | } else if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) { |
5704 | /* mac address is already in correct order */ | |
5705 | dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff; | |
5706 | dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff; | |
5707 | dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff; | |
5708 | dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff; | |
5709 | dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff; | |
5710 | dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff; | |
5711 | /* | |
5712 | * Set orig mac address back to the reversed version. | |
5713 | * This flag will be cleared during low power transition. | |
5714 | * Therefore, we should always put back the reversed address. | |
5715 | */ | |
5716 | np->orig_mac[0] = (dev->dev_addr[5] << 0) + (dev->dev_addr[4] << 8) + | |
5717 | (dev->dev_addr[3] << 16) + (dev->dev_addr[2] << 24); | |
5718 | np->orig_mac[1] = (dev->dev_addr[1] << 0) + (dev->dev_addr[0] << 8); | |
5070d340 AA |
5719 | } else { |
5720 | /* need to reverse mac address to correct order */ | |
5721 | dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff; | |
5722 | dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff; | |
5723 | dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff; | |
5724 | dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff; | |
5725 | dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff; | |
5726 | dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff; | |
5070d340 | 5727 | writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll); |
c20ec761 JP |
5728 | dev_dbg(&pci_dev->dev, |
5729 | "%s: set workaround bit for reversed mac addr\n", | |
5730 | __func__); | |
5070d340 | 5731 | } |
c704b856 | 5732 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 | 5733 | |
c704b856 | 5734 | if (!is_valid_ether_addr(dev->perm_addr)) { |
1da177e4 LT |
5735 | /* |
5736 | * Bad mac address. At least one bios sets the mac address | |
5737 | * to 01:23:45:67:89:ab | |
5738 | */ | |
b2ba08e6 | 5739 | dev_err(&pci_dev->dev, |
c20ec761 | 5740 | "Invalid MAC address detected: %pM - Please complain to your hardware vendor.\n", |
78aea4fc | 5741 | dev->dev_addr); |
7ce5d222 | 5742 | eth_hw_addr_random(dev); |
c20ec761 JP |
5743 | dev_err(&pci_dev->dev, |
5744 | "Using random MAC address: %pM\n", dev->dev_addr); | |
1da177e4 LT |
5745 | } |
5746 | ||
f1489653 AA |
5747 | /* set mac address */ |
5748 | nv_copy_mac_to_hw(dev); | |
5749 | ||
1da177e4 LT |
5750 | /* disable WOL */ |
5751 | writel(0, base + NvRegWakeUpFlags); | |
5752 | np->wolenabled = 0; | |
dba5a68a | 5753 | device_set_wakeup_enable(&pci_dev->dev, false); |
1da177e4 | 5754 | |
86a0f043 | 5755 | if (id->driver_data & DEV_HAS_POWER_CNTRL) { |
86a0f043 AA |
5756 | |
5757 | /* take phy and nic out of low power mode */ | |
5758 | powerstate = readl(base + NvRegPowerState2); | |
5759 | powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK; | |
3c2e1c11 | 5760 | if ((id->driver_data & DEV_NEED_LOW_POWER_FIX) && |
44c10138 | 5761 | pci_dev->revision >= 0xA3) |
86a0f043 AA |
5762 | powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3; |
5763 | writel(powerstate, base + NvRegPowerState2); | |
5764 | } | |
5765 | ||
78aea4fc | 5766 | if (np->desc_ver == DESC_VER_1) |
ac9c1897 | 5767 | np->tx_flags = NV_TX_VALID; |
78aea4fc | 5768 | else |
ac9c1897 | 5769 | np->tx_flags = NV_TX2_VALID; |
9e184767 AA |
5770 | |
5771 | np->msi_flags = 0; | |
78aea4fc | 5772 | if ((id->driver_data & DEV_HAS_MSI) && msi) |
9e184767 | 5773 | np->msi_flags |= NV_MSI_CAPABLE; |
78aea4fc | 5774 | |
9e184767 AA |
5775 | if ((id->driver_data & DEV_HAS_MSI_X) && msix) { |
5776 | /* msix has had reported issues when modifying irqmask | |
5777 | as in the case of napi, therefore, disable for now | |
5778 | */ | |
0a12761b | 5779 | #if 0 |
9e184767 AA |
5780 | np->msi_flags |= NV_MSI_X_CAPABLE; |
5781 | #endif | |
5782 | } | |
5783 | ||
5784 | if (optimization_mode == NV_OPTIMIZATION_MODE_CPU) { | |
a971c324 | 5785 | np->irqmask = NVREG_IRQMASK_CPU; |
d33a73c8 AA |
5786 | if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ |
5787 | np->msi_flags |= 0x0001; | |
9e184767 AA |
5788 | } else if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC && |
5789 | !(id->driver_data & DEV_NEED_TIMERIRQ)) { | |
5790 | /* start off in throughput mode */ | |
5791 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
5792 | /* remove support for msix mode */ | |
5793 | np->msi_flags &= ~NV_MSI_X_CAPABLE; | |
5794 | } else { | |
5795 | optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT; | |
5796 | np->irqmask = NVREG_IRQMASK_THROUGHPUT; | |
5797 | if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */ | |
5798 | np->msi_flags |= 0x0003; | |
d33a73c8 | 5799 | } |
a971c324 | 5800 | |
1da177e4 LT |
5801 | if (id->driver_data & DEV_NEED_TIMERIRQ) |
5802 | np->irqmask |= NVREG_IRQ_TIMER; | |
5803 | if (id->driver_data & DEV_NEED_LINKTIMER) { | |
1da177e4 LT |
5804 | np->need_linktimer = 1; |
5805 | np->link_timeout = jiffies + LINK_TIMEOUT; | |
5806 | } else { | |
1da177e4 LT |
5807 | np->need_linktimer = 0; |
5808 | } | |
5809 | ||
3b446c3e AA |
5810 | /* Limit the number of tx's outstanding for hw bug */ |
5811 | if (id->driver_data & DEV_NEED_TX_LIMIT) { | |
5812 | np->tx_limit = 1; | |
5c659322 | 5813 | if (((id->driver_data & DEV_NEED_TX_LIMIT2) == DEV_NEED_TX_LIMIT2) && |
3b446c3e AA |
5814 | pci_dev->revision >= 0xA2) |
5815 | np->tx_limit = 0; | |
5816 | } | |
5817 | ||
7e680c22 AA |
5818 | /* clear phy state and temporarily halt phy interrupts */ |
5819 | writel(0, base + NvRegMIIMask); | |
5820 | phystate = readl(base + NvRegAdapterControl); | |
5821 | if (phystate & NVREG_ADAPTCTL_RUNNING) { | |
5822 | phystate_orig = 1; | |
5823 | phystate &= ~NVREG_ADAPTCTL_RUNNING; | |
5824 | writel(phystate, base + NvRegAdapterControl); | |
5825 | } | |
eb798428 | 5826 | writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); |
7e680c22 AA |
5827 | |
5828 | if (id->driver_data & DEV_HAS_MGMT_UNIT) { | |
7e680c22 | 5829 | /* management unit running on the mac? */ |
cac1c52c AA |
5830 | if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST) && |
5831 | (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) && | |
5832 | nv_mgmt_acquire_sema(dev) && | |
5833 | nv_mgmt_get_version(dev)) { | |
5834 | np->mac_in_use = 1; | |
78aea4fc | 5835 | if (np->mgmt_version > 0) |
cac1c52c | 5836 | np->mac_in_use = readl(base + NvRegMgmtUnitControl) & NVREG_MGMTUNITCONTROL_INUSE; |
cac1c52c AA |
5837 | /* management unit setup the phy already? */ |
5838 | if (np->mac_in_use && | |
5839 | ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == | |
5840 | NVREG_XMITCTL_SYNC_PHY_INIT)) { | |
5841 | /* phy is inited by mgmt unit */ | |
5842 | phyinitialized = 1; | |
cac1c52c AA |
5843 | } else { |
5844 | /* we need to init the phy */ | |
7e680c22 AA |
5845 | } |
5846 | } | |
5847 | } | |
5848 | ||
1da177e4 | 5849 | /* find a suitable phy */ |
7a33e45a | 5850 | for (i = 1; i <= 32; i++) { |
1da177e4 | 5851 | int id1, id2; |
7a33e45a | 5852 | int phyaddr = i & 0x1F; |
1da177e4 LT |
5853 | |
5854 | spin_lock_irq(&np->lock); | |
7a33e45a | 5855 | id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ); |
1da177e4 LT |
5856 | spin_unlock_irq(&np->lock); |
5857 | if (id1 < 0 || id1 == 0xffff) | |
5858 | continue; | |
5859 | spin_lock_irq(&np->lock); | |
7a33e45a | 5860 | id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ); |
1da177e4 LT |
5861 | spin_unlock_irq(&np->lock); |
5862 | if (id2 < 0 || id2 == 0xffff) | |
5863 | continue; | |
5864 | ||
edf7e5ec | 5865 | np->phy_model = id2 & PHYID2_MODEL_MASK; |
1da177e4 LT |
5866 | id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT; |
5867 | id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT; | |
7a33e45a | 5868 | np->phyaddr = phyaddr; |
1da177e4 | 5869 | np->phy_oui = id1 | id2; |
9f3f7910 AA |
5870 | |
5871 | /* Realtek hardcoded phy id1 to all zero's on certain phys */ | |
5872 | if (np->phy_oui == PHY_OUI_REALTEK2) | |
5873 | np->phy_oui = PHY_OUI_REALTEK; | |
5874 | /* Setup phy revision for Realtek */ | |
5875 | if (np->phy_oui == PHY_OUI_REALTEK && np->phy_model == PHY_MODEL_REALTEK_8211) | |
5876 | np->phy_rev = mii_rw(dev, phyaddr, MII_RESV1, MII_READ) & PHY_REV_MASK; | |
5877 | ||
1da177e4 LT |
5878 | break; |
5879 | } | |
7a33e45a | 5880 | if (i == 33) { |
b2ba08e6 | 5881 | dev_info(&pci_dev->dev, "open: Could not find a valid PHY\n"); |
eafa59f6 | 5882 | goto out_error; |
1da177e4 | 5883 | } |
f3b197ac | 5884 | |
7e680c22 AA |
5885 | if (!phyinitialized) { |
5886 | /* reset it */ | |
5887 | phy_init(dev); | |
f35723ec AA |
5888 | } else { |
5889 | /* see if it is a gigabit phy */ | |
5890 | u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ); | |
78aea4fc | 5891 | if (mii_status & PHY_GIGABIT) |
f35723ec | 5892 | np->gigabit = PHY_GIGABIT; |
7e680c22 | 5893 | } |
1da177e4 LT |
5894 | |
5895 | /* set default link speed settings */ | |
5896 | np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; | |
5897 | np->duplex = 0; | |
5898 | np->autoneg = 1; | |
5899 | ||
5900 | err = register_netdev(dev); | |
5901 | if (err) { | |
b2ba08e6 | 5902 | dev_info(&pci_dev->dev, "unable to register netdev: %d\n", err); |
eafa59f6 | 5903 | goto out_error; |
1da177e4 | 5904 | } |
3f88ce49 | 5905 | |
9331db4f JP |
5906 | if (id->driver_data & DEV_HAS_VLAN) |
5907 | nv_vlan_mode(dev, dev->features); | |
0891b0e0 | 5908 | |
0d672e9f IV |
5909 | netif_carrier_off(dev); |
5910 | ||
b2ba08e6 JP |
5911 | dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n", |
5912 | dev->name, np->phy_oui, np->phyaddr, dev->dev_addr); | |
5913 | ||
e19df76a | 5914 | dev_info(&pci_dev->dev, "%s%s%s%s%s%s%s%s%s%s%sdesc-v%u\n", |
b2ba08e6 JP |
5915 | dev->features & NETIF_F_HIGHDMA ? "highdma " : "", |
5916 | dev->features & (NETIF_F_IP_CSUM | NETIF_F_SG) ? | |
78aea4fc | 5917 | "csum " : "", |
b2ba08e6 | 5918 | dev->features & (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX) ? |
78aea4fc | 5919 | "vlan " : "", |
e19df76a SH |
5920 | dev->features & (NETIF_F_LOOPBACK) ? |
5921 | "loopback " : "", | |
b2ba08e6 JP |
5922 | id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "", |
5923 | id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "", | |
5924 | id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "", | |
5925 | np->gigabit == PHY_GIGABIT ? "gbit " : "", | |
5926 | np->need_linktimer ? "lnktim " : "", | |
5927 | np->msi_flags & NV_MSI_CAPABLE ? "msi " : "", | |
5928 | np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "", | |
5929 | np->desc_ver); | |
1da177e4 LT |
5930 | |
5931 | return 0; | |
5932 | ||
eafa59f6 | 5933 | out_error: |
7e680c22 AA |
5934 | if (phystate_orig) |
5935 | writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl); | |
1da177e4 | 5936 | pci_set_drvdata(pci_dev, NULL); |
eafa59f6 AA |
5937 | out_freering: |
5938 | free_rings(dev); | |
1da177e4 LT |
5939 | out_unmap: |
5940 | iounmap(get_hwbase(dev)); | |
5941 | out_relreg: | |
5942 | pci_release_regions(pci_dev); | |
5943 | out_disable: | |
5944 | pci_disable_device(pci_dev); | |
5945 | out_free: | |
5946 | free_netdev(dev); | |
5947 | out: | |
5948 | return err; | |
5949 | } | |
5950 | ||
9f3f7910 AA |
5951 | static void nv_restore_phy(struct net_device *dev) |
5952 | { | |
5953 | struct fe_priv *np = netdev_priv(dev); | |
5954 | u16 phy_reserved, mii_control; | |
5955 | ||
5956 | if (np->phy_oui == PHY_OUI_REALTEK && | |
5957 | np->phy_model == PHY_MODEL_REALTEK_8201 && | |
5958 | phy_cross == NV_CROSSOVER_DETECTION_DISABLED) { | |
5959 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3); | |
5960 | phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ); | |
5961 | phy_reserved &= ~PHY_REALTEK_INIT_MSK1; | |
5962 | phy_reserved |= PHY_REALTEK_INIT8; | |
5963 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved); | |
5964 | mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1); | |
5965 | ||
5966 | /* restart auto negotiation */ | |
5967 | mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); | |
5968 | mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); | |
5969 | mii_rw(dev, np->phyaddr, MII_BMCR, mii_control); | |
5970 | } | |
5971 | } | |
5972 | ||
f55c21fd | 5973 | static void nv_restore_mac_addr(struct pci_dev *pci_dev) |
1da177e4 LT |
5974 | { |
5975 | struct net_device *dev = pci_get_drvdata(pci_dev); | |
f1489653 AA |
5976 | struct fe_priv *np = netdev_priv(dev); |
5977 | u8 __iomem *base = get_hwbase(dev); | |
1da177e4 | 5978 | |
f1489653 AA |
5979 | /* special op: write back the misordered MAC address - otherwise |
5980 | * the next nv_probe would see a wrong address. | |
5981 | */ | |
5982 | writel(np->orig_mac[0], base + NvRegMacAddrA); | |
5983 | writel(np->orig_mac[1], base + NvRegMacAddrB); |