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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | ========================================================================= | |
3 | r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver for Linux kernel 2.4.x. | |
4 | -------------------------------------------------------------------- | |
5 | ||
6 | History: | |
7 | Feb 4 2002 - created initially by ShuChen <shuchen@realtek.com.tw>. | |
8 | May 20 2002 - Add link status force-mode and TBI mode support. | |
9 | 2004 - Massive updates. See kernel SCM system for details. | |
10 | ========================================================================= | |
11 | 1. [DEPRECATED: use ethtool instead] The media can be forced in 5 modes. | |
12 | Command: 'insmod r8169 media = SET_MEDIA' | |
13 | Ex: 'insmod r8169 media = 0x04' will force PHY to operate in 100Mpbs Half-duplex. | |
14 | ||
15 | SET_MEDIA can be: | |
16 | _10_Half = 0x01 | |
17 | _10_Full = 0x02 | |
18 | _100_Half = 0x04 | |
19 | _100_Full = 0x08 | |
20 | _1000_Full = 0x10 | |
21 | ||
22 | 2. Support TBI mode. | |
23 | ========================================================================= | |
24 | VERSION 1.1 <2002/10/4> | |
25 | ||
26 | The bit4:0 of MII register 4 is called "selector field", and have to be | |
27 | 00001b to indicate support of IEEE std 802.3 during NWay process of | |
28 | exchanging Link Code Word (FLP). | |
29 | ||
30 | VERSION 1.2 <2002/11/30> | |
31 | ||
32 | - Large style cleanup | |
33 | - Use ether_crc in stock kernel (linux/crc32.h) | |
34 | - Copy mc_filter setup code from 8139cp | |
35 | (includes an optimization, and avoids set_bit use) | |
36 | ||
37 | VERSION 1.6LK <2004/04/14> | |
38 | ||
39 | - Merge of Realtek's version 1.6 | |
40 | - Conversion to DMA API | |
41 | - Suspend/resume | |
42 | - Endianness | |
43 | - Misc Rx/Tx bugs | |
44 | ||
45 | VERSION 2.2LK <2005/01/25> | |
46 | ||
47 | - RX csum, TX csum/SG, TSO | |
48 | - VLAN | |
49 | - baby (< 7200) Jumbo frames support | |
50 | - Merge of Realtek's version 2.2 (new phy) | |
51 | */ | |
52 | ||
53 | #include <linux/module.h> | |
54 | #include <linux/moduleparam.h> | |
55 | #include <linux/pci.h> | |
56 | #include <linux/netdevice.h> | |
57 | #include <linux/etherdevice.h> | |
58 | #include <linux/delay.h> | |
59 | #include <linux/ethtool.h> | |
60 | #include <linux/mii.h> | |
61 | #include <linux/if_vlan.h> | |
62 | #include <linux/crc32.h> | |
63 | #include <linux/in.h> | |
64 | #include <linux/ip.h> | |
65 | #include <linux/tcp.h> | |
66 | #include <linux/init.h> | |
67 | #include <linux/dma-mapping.h> | |
68 | ||
69 | #include <asm/io.h> | |
70 | #include <asm/irq.h> | |
71 | ||
f7ccf420 SH |
72 | #ifdef CONFIG_R8169_NAPI |
73 | #define NAPI_SUFFIX "-NAPI" | |
74 | #else | |
75 | #define NAPI_SUFFIX "" | |
76 | #endif | |
77 | ||
78 | #define RTL8169_VERSION "2.2LK" NAPI_SUFFIX | |
1da177e4 LT |
79 | #define MODULENAME "r8169" |
80 | #define PFX MODULENAME ": " | |
81 | ||
82 | #ifdef RTL8169_DEBUG | |
83 | #define assert(expr) \ | |
84 | if(!(expr)) { \ | |
85 | printk( "Assertion failed! %s,%s,%s,line=%d\n", \ | |
86 | #expr,__FILE__,__FUNCTION__,__LINE__); \ | |
87 | } | |
88 | #define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0) | |
89 | #else | |
90 | #define assert(expr) do {} while (0) | |
91 | #define dprintk(fmt, args...) do {} while (0) | |
92 | #endif /* RTL8169_DEBUG */ | |
93 | ||
b57b7e5a SH |
94 | #define R8169_MSG_DEFAULT \ |
95 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ | |
96 | NETIF_MSG_IFDOWN) | |
97 | ||
1da177e4 LT |
98 | #define TX_BUFFS_AVAIL(tp) \ |
99 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) | |
100 | ||
101 | #ifdef CONFIG_R8169_NAPI | |
102 | #define rtl8169_rx_skb netif_receive_skb | |
103 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx | |
104 | #define rtl8169_rx_quota(count, quota) min(count, quota) | |
105 | #else | |
106 | #define rtl8169_rx_skb netif_rx | |
107 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb | |
108 | #define rtl8169_rx_quota(count, quota) count | |
109 | #endif | |
110 | ||
111 | /* media options */ | |
112 | #define MAX_UNITS 8 | |
113 | static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; | |
114 | static int num_media = 0; | |
115 | ||
116 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ | |
117 | static int max_interrupt_work = 20; | |
118 | ||
119 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
120 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
121 | static int multicast_filter_limit = 32; | |
122 | ||
123 | /* MAC address length */ | |
124 | #define MAC_ADDR_LEN 6 | |
125 | ||
126 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ | |
127 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
128 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
129 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ | |
130 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ | |
131 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ | |
132 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ | |
133 | ||
134 | #define R8169_REGS_SIZE 256 | |
135 | #define R8169_NAPI_WEIGHT 64 | |
136 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ | |
137 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ | |
138 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ | |
139 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | |
140 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
141 | ||
142 | #define RTL8169_TX_TIMEOUT (6*HZ) | |
143 | #define RTL8169_PHY_TIMEOUT (10*HZ) | |
144 | ||
145 | /* write/read MMIO register */ | |
146 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) | |
147 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) | |
148 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) | |
149 | #define RTL_R8(reg) readb (ioaddr + (reg)) | |
150 | #define RTL_R16(reg) readw (ioaddr + (reg)) | |
151 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) | |
152 | ||
153 | enum mac_version { | |
154 | RTL_GIGA_MAC_VER_B = 0x00, | |
155 | /* RTL_GIGA_MAC_VER_C = 0x03, */ | |
156 | RTL_GIGA_MAC_VER_D = 0x01, | |
157 | RTL_GIGA_MAC_VER_E = 0x02, | |
158 | RTL_GIGA_MAC_VER_X = 0x04 /* Greater than RTL_GIGA_MAC_VER_E */ | |
159 | }; | |
160 | ||
161 | enum phy_version { | |
162 | RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
163 | RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
164 | RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
165 | RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ | |
166 | RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ | |
167 | RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ | |
168 | }; | |
169 | ||
170 | ||
171 | #define _R(NAME,MAC,MASK) \ | |
172 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } | |
173 | ||
174 | const static struct { | |
175 | const char *name; | |
176 | u8 mac_version; | |
177 | u32 RxConfigMask; /* Clears the bits supported by this chip */ | |
178 | } rtl_chip_info[] = { | |
179 | _R("RTL8169", RTL_GIGA_MAC_VER_B, 0xff7e1880), | |
180 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_D, 0xff7e1880), | |
181 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_E, 0xff7e1880), | |
182 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_X, 0xff7e1880), | |
183 | }; | |
184 | #undef _R | |
185 | ||
186 | static struct pci_device_id rtl8169_pci_tbl[] = { | |
53456f60 FR |
187 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), }, |
188 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), }, | |
189 | { PCI_DEVICE(0x16ec, 0x0116), }, | |
1da177e4 LT |
190 | {0,}, |
191 | }; | |
192 | ||
193 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); | |
194 | ||
195 | static int rx_copybreak = 200; | |
196 | static int use_dac; | |
b57b7e5a SH |
197 | static struct { |
198 | u32 msg_enable; | |
199 | } debug = { -1 }; | |
1da177e4 LT |
200 | |
201 | enum RTL8169_registers { | |
202 | MAC0 = 0, /* Ethernet hardware address. */ | |
203 | MAR0 = 8, /* Multicast filter. */ | |
d4a3a0fc SH |
204 | CounterAddrLow = 0x10, |
205 | CounterAddrHigh = 0x14, | |
1da177e4 LT |
206 | TxDescStartAddrLow = 0x20, |
207 | TxDescStartAddrHigh = 0x24, | |
208 | TxHDescStartAddrLow = 0x28, | |
209 | TxHDescStartAddrHigh = 0x2c, | |
210 | FLASH = 0x30, | |
211 | ERSR = 0x36, | |
212 | ChipCmd = 0x37, | |
213 | TxPoll = 0x38, | |
214 | IntrMask = 0x3C, | |
215 | IntrStatus = 0x3E, | |
216 | TxConfig = 0x40, | |
217 | RxConfig = 0x44, | |
218 | RxMissed = 0x4C, | |
219 | Cfg9346 = 0x50, | |
220 | Config0 = 0x51, | |
221 | Config1 = 0x52, | |
222 | Config2 = 0x53, | |
223 | Config3 = 0x54, | |
224 | Config4 = 0x55, | |
225 | Config5 = 0x56, | |
226 | MultiIntr = 0x5C, | |
227 | PHYAR = 0x60, | |
228 | TBICSR = 0x64, | |
229 | TBI_ANAR = 0x68, | |
230 | TBI_LPAR = 0x6A, | |
231 | PHYstatus = 0x6C, | |
232 | RxMaxSize = 0xDA, | |
233 | CPlusCmd = 0xE0, | |
234 | IntrMitigate = 0xE2, | |
235 | RxDescAddrLow = 0xE4, | |
236 | RxDescAddrHigh = 0xE8, | |
237 | EarlyTxThres = 0xEC, | |
238 | FuncEvent = 0xF0, | |
239 | FuncEventMask = 0xF4, | |
240 | FuncPresetState = 0xF8, | |
241 | FuncForceEvent = 0xFC, | |
242 | }; | |
243 | ||
244 | enum RTL8169_register_content { | |
245 | /* InterruptStatusBits */ | |
246 | SYSErr = 0x8000, | |
247 | PCSTimeout = 0x4000, | |
248 | SWInt = 0x0100, | |
249 | TxDescUnavail = 0x80, | |
250 | RxFIFOOver = 0x40, | |
251 | LinkChg = 0x20, | |
252 | RxOverflow = 0x10, | |
253 | TxErr = 0x08, | |
254 | TxOK = 0x04, | |
255 | RxErr = 0x02, | |
256 | RxOK = 0x01, | |
257 | ||
258 | /* RxStatusDesc */ | |
259 | RxRES = 0x00200000, | |
260 | RxCRC = 0x00080000, | |
261 | RxRUNT = 0x00100000, | |
262 | RxRWT = 0x00400000, | |
263 | ||
264 | /* ChipCmdBits */ | |
265 | CmdReset = 0x10, | |
266 | CmdRxEnb = 0x08, | |
267 | CmdTxEnb = 0x04, | |
268 | RxBufEmpty = 0x01, | |
269 | ||
270 | /* Cfg9346Bits */ | |
271 | Cfg9346_Lock = 0x00, | |
272 | Cfg9346_Unlock = 0xC0, | |
273 | ||
274 | /* rx_mode_bits */ | |
275 | AcceptErr = 0x20, | |
276 | AcceptRunt = 0x10, | |
277 | AcceptBroadcast = 0x08, | |
278 | AcceptMulticast = 0x04, | |
279 | AcceptMyPhys = 0x02, | |
280 | AcceptAllPhys = 0x01, | |
281 | ||
282 | /* RxConfigBits */ | |
283 | RxCfgFIFOShift = 13, | |
284 | RxCfgDMAShift = 8, | |
285 | ||
286 | /* TxConfigBits */ | |
287 | TxInterFrameGapShift = 24, | |
288 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
289 | ||
290 | /* TBICSR p.28 */ | |
291 | TBIReset = 0x80000000, | |
292 | TBILoopback = 0x40000000, | |
293 | TBINwEnable = 0x20000000, | |
294 | TBINwRestart = 0x10000000, | |
295 | TBILinkOk = 0x02000000, | |
296 | TBINwComplete = 0x01000000, | |
297 | ||
298 | /* CPlusCmd p.31 */ | |
299 | RxVlan = (1 << 6), | |
300 | RxChkSum = (1 << 5), | |
301 | PCIDAC = (1 << 4), | |
302 | PCIMulRW = (1 << 3), | |
303 | ||
304 | /* rtl8169_PHYstatus */ | |
305 | TBI_Enable = 0x80, | |
306 | TxFlowCtrl = 0x40, | |
307 | RxFlowCtrl = 0x20, | |
308 | _1000bpsF = 0x10, | |
309 | _100bps = 0x08, | |
310 | _10bps = 0x04, | |
311 | LinkStatus = 0x02, | |
312 | FullDup = 0x01, | |
313 | ||
314 | /* GIGABIT_PHY_registers */ | |
315 | PHY_CTRL_REG = 0, | |
316 | PHY_STAT_REG = 1, | |
317 | PHY_AUTO_NEGO_REG = 4, | |
318 | PHY_1000_CTRL_REG = 9, | |
319 | ||
320 | /* GIGABIT_PHY_REG_BIT */ | |
321 | PHY_Restart_Auto_Nego = 0x0200, | |
322 | PHY_Enable_Auto_Nego = 0x1000, | |
323 | ||
324 | /* PHY_STAT_REG = 1 */ | |
325 | PHY_Auto_Neco_Comp = 0x0020, | |
326 | ||
327 | /* PHY_AUTO_NEGO_REG = 4 */ | |
328 | PHY_Cap_10_Half = 0x0020, | |
329 | PHY_Cap_10_Full = 0x0040, | |
330 | PHY_Cap_100_Half = 0x0080, | |
331 | PHY_Cap_100_Full = 0x0100, | |
332 | ||
333 | /* PHY_1000_CTRL_REG = 9 */ | |
334 | PHY_Cap_1000_Full = 0x0200, | |
335 | ||
336 | PHY_Cap_Null = 0x0, | |
337 | ||
338 | /* _MediaType */ | |
339 | _10_Half = 0x01, | |
340 | _10_Full = 0x02, | |
341 | _100_Half = 0x04, | |
342 | _100_Full = 0x08, | |
343 | _1000_Full = 0x10, | |
344 | ||
345 | /* _TBICSRBit */ | |
346 | TBILinkOK = 0x02000000, | |
d4a3a0fc SH |
347 | |
348 | /* DumpCounterCommand */ | |
349 | CounterDump = 0x8, | |
1da177e4 LT |
350 | }; |
351 | ||
352 | enum _DescStatusBit { | |
353 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ | |
354 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
355 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
356 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
357 | ||
358 | /* Tx private */ | |
359 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ | |
360 | MSSShift = 16, /* MSS value position */ | |
361 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ | |
362 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
363 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
364 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
365 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
366 | ||
367 | /* Rx private */ | |
368 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ | |
369 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ | |
370 | ||
371 | #define RxProtoUDP (PID1) | |
372 | #define RxProtoTCP (PID0) | |
373 | #define RxProtoIP (PID1 | PID0) | |
374 | #define RxProtoMask RxProtoIP | |
375 | ||
376 | IPFail = (1 << 16), /* IP checksum failed */ | |
377 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ | |
378 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ | |
379 | RxVlanTag = (1 << 16), /* VLAN tag available */ | |
380 | }; | |
381 | ||
382 | #define RsvdMask 0x3fffc000 | |
383 | ||
384 | struct TxDesc { | |
385 | u32 opts1; | |
386 | u32 opts2; | |
387 | u64 addr; | |
388 | }; | |
389 | ||
390 | struct RxDesc { | |
391 | u32 opts1; | |
392 | u32 opts2; | |
393 | u64 addr; | |
394 | }; | |
395 | ||
396 | struct ring_info { | |
397 | struct sk_buff *skb; | |
398 | u32 len; | |
399 | u8 __pad[sizeof(void *) - sizeof(u32)]; | |
400 | }; | |
401 | ||
402 | struct rtl8169_private { | |
403 | void __iomem *mmio_addr; /* memory map physical address */ | |
404 | struct pci_dev *pci_dev; /* Index of PCI device */ | |
405 | struct net_device_stats stats; /* statistics of net device */ | |
406 | spinlock_t lock; /* spin lock flag */ | |
b57b7e5a | 407 | u32 msg_enable; |
1da177e4 LT |
408 | int chipset; |
409 | int mac_version; | |
410 | int phy_version; | |
411 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ | |
412 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ | |
413 | u32 dirty_rx; | |
414 | u32 dirty_tx; | |
415 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ | |
416 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ | |
417 | dma_addr_t TxPhyAddr; | |
418 | dma_addr_t RxPhyAddr; | |
419 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ | |
420 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ | |
421 | unsigned rx_buf_sz; | |
422 | struct timer_list timer; | |
423 | u16 cp_cmd; | |
424 | u16 intr_mask; | |
425 | int phy_auto_nego_reg; | |
426 | int phy_1000_ctrl_reg; | |
427 | #ifdef CONFIG_R8169_VLAN | |
428 | struct vlan_group *vlgrp; | |
429 | #endif | |
430 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); | |
431 | void (*get_settings)(struct net_device *, struct ethtool_cmd *); | |
432 | void (*phy_reset_enable)(void __iomem *); | |
433 | unsigned int (*phy_reset_pending)(void __iomem *); | |
434 | unsigned int (*link_ok)(void __iomem *); | |
435 | struct work_struct task; | |
436 | }; | |
437 | ||
438 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@oss.sgi.com>"); | |
439 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); | |
440 | module_param_array(media, int, &num_media, 0); | |
df0a1bf6 | 441 | MODULE_PARM_DESC(media, "force phy operation. Deprecated by ethtool (8)."); |
1da177e4 | 442 | module_param(rx_copybreak, int, 0); |
1b7efd58 | 443 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
1da177e4 LT |
444 | module_param(use_dac, int, 0); |
445 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); | |
b57b7e5a SH |
446 | module_param_named(debug, debug.msg_enable, int, 0); |
447 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
1da177e4 LT |
448 | MODULE_LICENSE("GPL"); |
449 | MODULE_VERSION(RTL8169_VERSION); | |
450 | ||
451 | static int rtl8169_open(struct net_device *dev); | |
452 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
453 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance, | |
454 | struct pt_regs *regs); | |
455 | static int rtl8169_init_ring(struct net_device *dev); | |
456 | static void rtl8169_hw_start(struct net_device *dev); | |
457 | static int rtl8169_close(struct net_device *dev); | |
458 | static void rtl8169_set_rx_mode(struct net_device *dev); | |
459 | static void rtl8169_tx_timeout(struct net_device *dev); | |
460 | static struct net_device_stats *rtl8169_get_stats(struct net_device *netdev); | |
461 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, | |
462 | void __iomem *); | |
463 | static int rtl8169_change_mtu(struct net_device *netdev, int new_mtu); | |
464 | static void rtl8169_down(struct net_device *dev); | |
465 | ||
466 | #ifdef CONFIG_R8169_NAPI | |
467 | static int rtl8169_poll(struct net_device *dev, int *budget); | |
468 | #endif | |
469 | ||
470 | static const u16 rtl8169_intr_mask = | |
471 | SYSErr | LinkChg | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK; | |
472 | static const u16 rtl8169_napi_event = | |
473 | RxOK | RxOverflow | RxFIFOOver | TxOK | TxErr; | |
474 | static const unsigned int rtl8169_rx_config = | |
475 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); | |
476 | ||
477 | #define PHY_Cap_10_Half_Or_Less PHY_Cap_10_Half | |
478 | #define PHY_Cap_10_Full_Or_Less PHY_Cap_10_Full | PHY_Cap_10_Half_Or_Less | |
479 | #define PHY_Cap_100_Half_Or_Less PHY_Cap_100_Half | PHY_Cap_10_Full_Or_Less | |
480 | #define PHY_Cap_100_Full_Or_Less PHY_Cap_100_Full | PHY_Cap_100_Half_Or_Less | |
481 | ||
482 | static void mdio_write(void __iomem *ioaddr, int RegAddr, int value) | |
483 | { | |
484 | int i; | |
485 | ||
486 | RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value); | |
487 | udelay(1000); | |
488 | ||
489 | for (i = 2000; i > 0; i--) { | |
490 | /* Check if the RTL8169 has completed writing to the specified MII register */ | |
491 | if (!(RTL_R32(PHYAR) & 0x80000000)) | |
492 | break; | |
493 | udelay(100); | |
494 | } | |
495 | } | |
496 | ||
497 | static int mdio_read(void __iomem *ioaddr, int RegAddr) | |
498 | { | |
499 | int i, value = -1; | |
500 | ||
501 | RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16); | |
502 | udelay(1000); | |
503 | ||
504 | for (i = 2000; i > 0; i--) { | |
505 | /* Check if the RTL8169 has completed retrieving data from the specified MII register */ | |
506 | if (RTL_R32(PHYAR) & 0x80000000) { | |
507 | value = (int) (RTL_R32(PHYAR) & 0xFFFF); | |
508 | break; | |
509 | } | |
510 | udelay(100); | |
511 | } | |
512 | return value; | |
513 | } | |
514 | ||
515 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) | |
516 | { | |
517 | RTL_W16(IntrMask, 0x0000); | |
518 | ||
519 | RTL_W16(IntrStatus, 0xffff); | |
520 | } | |
521 | ||
522 | static void rtl8169_asic_down(void __iomem *ioaddr) | |
523 | { | |
524 | RTL_W8(ChipCmd, 0x00); | |
525 | rtl8169_irq_mask_and_ack(ioaddr); | |
526 | RTL_R16(CPlusCmd); | |
527 | } | |
528 | ||
529 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) | |
530 | { | |
531 | return RTL_R32(TBICSR) & TBIReset; | |
532 | } | |
533 | ||
534 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) | |
535 | { | |
536 | return mdio_read(ioaddr, 0) & 0x8000; | |
537 | } | |
538 | ||
539 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) | |
540 | { | |
541 | return RTL_R32(TBICSR) & TBILinkOk; | |
542 | } | |
543 | ||
544 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) | |
545 | { | |
546 | return RTL_R8(PHYstatus) & LinkStatus; | |
547 | } | |
548 | ||
549 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) | |
550 | { | |
551 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); | |
552 | } | |
553 | ||
554 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) | |
555 | { | |
556 | unsigned int val; | |
557 | ||
558 | val = (mdio_read(ioaddr, PHY_CTRL_REG) | 0x8000) & 0xffff; | |
559 | mdio_write(ioaddr, PHY_CTRL_REG, val); | |
560 | } | |
561 | ||
562 | static void rtl8169_check_link_status(struct net_device *dev, | |
563 | struct rtl8169_private *tp, void __iomem *ioaddr) | |
564 | { | |
565 | unsigned long flags; | |
566 | ||
567 | spin_lock_irqsave(&tp->lock, flags); | |
568 | if (tp->link_ok(ioaddr)) { | |
569 | netif_carrier_on(dev); | |
b57b7e5a SH |
570 | if (netif_msg_ifup(tp)) |
571 | printk(KERN_INFO PFX "%s: link up\n", dev->name); | |
572 | } else { | |
573 | if (netif_msg_ifdown(tp)) | |
574 | printk(KERN_INFO PFX "%s: link down\n", dev->name); | |
1da177e4 | 575 | netif_carrier_off(dev); |
b57b7e5a | 576 | } |
1da177e4 LT |
577 | spin_unlock_irqrestore(&tp->lock, flags); |
578 | } | |
579 | ||
580 | static void rtl8169_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex) | |
581 | { | |
582 | struct { | |
583 | u16 speed; | |
584 | u8 duplex; | |
585 | u8 autoneg; | |
586 | u8 media; | |
587 | } link_settings[] = { | |
588 | { SPEED_10, DUPLEX_HALF, AUTONEG_DISABLE, _10_Half }, | |
589 | { SPEED_10, DUPLEX_FULL, AUTONEG_DISABLE, _10_Full }, | |
590 | { SPEED_100, DUPLEX_HALF, AUTONEG_DISABLE, _100_Half }, | |
591 | { SPEED_100, DUPLEX_FULL, AUTONEG_DISABLE, _100_Full }, | |
592 | { SPEED_1000, DUPLEX_FULL, AUTONEG_DISABLE, _1000_Full }, | |
593 | /* Make TBI happy */ | |
594 | { SPEED_1000, DUPLEX_FULL, AUTONEG_ENABLE, 0xff } | |
595 | }, *p; | |
596 | unsigned char option; | |
597 | ||
598 | option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff; | |
599 | ||
b57b7e5a | 600 | if ((option != 0xff) && !idx && netif_msg_drv(&debug)) |
1da177e4 LT |
601 | printk(KERN_WARNING PFX "media option is deprecated.\n"); |
602 | ||
603 | for (p = link_settings; p->media != 0xff; p++) { | |
604 | if (p->media == option) | |
605 | break; | |
606 | } | |
607 | *autoneg = p->autoneg; | |
608 | *speed = p->speed; | |
609 | *duplex = p->duplex; | |
610 | } | |
611 | ||
612 | static void rtl8169_get_drvinfo(struct net_device *dev, | |
613 | struct ethtool_drvinfo *info) | |
614 | { | |
615 | struct rtl8169_private *tp = netdev_priv(dev); | |
616 | ||
617 | strcpy(info->driver, MODULENAME); | |
618 | strcpy(info->version, RTL8169_VERSION); | |
619 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
620 | } | |
621 | ||
622 | static int rtl8169_get_regs_len(struct net_device *dev) | |
623 | { | |
624 | return R8169_REGS_SIZE; | |
625 | } | |
626 | ||
627 | static int rtl8169_set_speed_tbi(struct net_device *dev, | |
628 | u8 autoneg, u16 speed, u8 duplex) | |
629 | { | |
630 | struct rtl8169_private *tp = netdev_priv(dev); | |
631 | void __iomem *ioaddr = tp->mmio_addr; | |
632 | int ret = 0; | |
633 | u32 reg; | |
634 | ||
635 | reg = RTL_R32(TBICSR); | |
636 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && | |
637 | (duplex == DUPLEX_FULL)) { | |
638 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); | |
639 | } else if (autoneg == AUTONEG_ENABLE) | |
640 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); | |
641 | else { | |
b57b7e5a SH |
642 | if (netif_msg_link(tp)) { |
643 | printk(KERN_WARNING "%s: " | |
644 | "incorrect speed setting refused in TBI mode\n", | |
645 | dev->name); | |
646 | } | |
1da177e4 LT |
647 | ret = -EOPNOTSUPP; |
648 | } | |
649 | ||
650 | return ret; | |
651 | } | |
652 | ||
653 | static int rtl8169_set_speed_xmii(struct net_device *dev, | |
654 | u8 autoneg, u16 speed, u8 duplex) | |
655 | { | |
656 | struct rtl8169_private *tp = netdev_priv(dev); | |
657 | void __iomem *ioaddr = tp->mmio_addr; | |
658 | int auto_nego, giga_ctrl; | |
659 | ||
660 | auto_nego = mdio_read(ioaddr, PHY_AUTO_NEGO_REG); | |
661 | auto_nego &= ~(PHY_Cap_10_Half | PHY_Cap_10_Full | | |
662 | PHY_Cap_100_Half | PHY_Cap_100_Full); | |
663 | giga_ctrl = mdio_read(ioaddr, PHY_1000_CTRL_REG); | |
664 | giga_ctrl &= ~(PHY_Cap_1000_Full | PHY_Cap_Null); | |
665 | ||
666 | if (autoneg == AUTONEG_ENABLE) { | |
667 | auto_nego |= (PHY_Cap_10_Half | PHY_Cap_10_Full | | |
668 | PHY_Cap_100_Half | PHY_Cap_100_Full); | |
669 | giga_ctrl |= PHY_Cap_1000_Full; | |
670 | } else { | |
671 | if (speed == SPEED_10) | |
672 | auto_nego |= PHY_Cap_10_Half | PHY_Cap_10_Full; | |
673 | else if (speed == SPEED_100) | |
674 | auto_nego |= PHY_Cap_100_Half | PHY_Cap_100_Full; | |
675 | else if (speed == SPEED_1000) | |
676 | giga_ctrl |= PHY_Cap_1000_Full; | |
677 | ||
678 | if (duplex == DUPLEX_HALF) | |
679 | auto_nego &= ~(PHY_Cap_10_Full | PHY_Cap_100_Full); | |
680 | } | |
681 | ||
682 | tp->phy_auto_nego_reg = auto_nego; | |
683 | tp->phy_1000_ctrl_reg = giga_ctrl; | |
684 | ||
685 | mdio_write(ioaddr, PHY_AUTO_NEGO_REG, auto_nego); | |
686 | mdio_write(ioaddr, PHY_1000_CTRL_REG, giga_ctrl); | |
687 | mdio_write(ioaddr, PHY_CTRL_REG, PHY_Enable_Auto_Nego | | |
688 | PHY_Restart_Auto_Nego); | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static int rtl8169_set_speed(struct net_device *dev, | |
693 | u8 autoneg, u16 speed, u8 duplex) | |
694 | { | |
695 | struct rtl8169_private *tp = netdev_priv(dev); | |
696 | int ret; | |
697 | ||
698 | ret = tp->set_speed(dev, autoneg, speed, duplex); | |
699 | ||
700 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)) | |
701 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); | |
702 | ||
703 | return ret; | |
704 | } | |
705 | ||
706 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
707 | { | |
708 | struct rtl8169_private *tp = netdev_priv(dev); | |
709 | unsigned long flags; | |
710 | int ret; | |
711 | ||
712 | spin_lock_irqsave(&tp->lock, flags); | |
713 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); | |
714 | spin_unlock_irqrestore(&tp->lock, flags); | |
715 | ||
716 | return ret; | |
717 | } | |
718 | ||
719 | static u32 rtl8169_get_rx_csum(struct net_device *dev) | |
720 | { | |
721 | struct rtl8169_private *tp = netdev_priv(dev); | |
722 | ||
723 | return tp->cp_cmd & RxChkSum; | |
724 | } | |
725 | ||
726 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) | |
727 | { | |
728 | struct rtl8169_private *tp = netdev_priv(dev); | |
729 | void __iomem *ioaddr = tp->mmio_addr; | |
730 | unsigned long flags; | |
731 | ||
732 | spin_lock_irqsave(&tp->lock, flags); | |
733 | ||
734 | if (data) | |
735 | tp->cp_cmd |= RxChkSum; | |
736 | else | |
737 | tp->cp_cmd &= ~RxChkSum; | |
738 | ||
739 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
740 | RTL_R16(CPlusCmd); | |
741 | ||
742 | spin_unlock_irqrestore(&tp->lock, flags); | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | #ifdef CONFIG_R8169_VLAN | |
748 | ||
749 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
750 | struct sk_buff *skb) | |
751 | { | |
752 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? | |
753 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; | |
754 | } | |
755 | ||
756 | static void rtl8169_vlan_rx_register(struct net_device *dev, | |
757 | struct vlan_group *grp) | |
758 | { | |
759 | struct rtl8169_private *tp = netdev_priv(dev); | |
760 | void __iomem *ioaddr = tp->mmio_addr; | |
761 | unsigned long flags; | |
762 | ||
763 | spin_lock_irqsave(&tp->lock, flags); | |
764 | tp->vlgrp = grp; | |
765 | if (tp->vlgrp) | |
766 | tp->cp_cmd |= RxVlan; | |
767 | else | |
768 | tp->cp_cmd &= ~RxVlan; | |
769 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
770 | RTL_R16(CPlusCmd); | |
771 | spin_unlock_irqrestore(&tp->lock, flags); | |
772 | } | |
773 | ||
774 | static void rtl8169_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
775 | { | |
776 | struct rtl8169_private *tp = netdev_priv(dev); | |
777 | unsigned long flags; | |
778 | ||
779 | spin_lock_irqsave(&tp->lock, flags); | |
780 | if (tp->vlgrp) | |
781 | tp->vlgrp->vlan_devices[vid] = NULL; | |
782 | spin_unlock_irqrestore(&tp->lock, flags); | |
783 | } | |
784 | ||
785 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
786 | struct sk_buff *skb) | |
787 | { | |
788 | u32 opts2 = le32_to_cpu(desc->opts2); | |
789 | int ret; | |
790 | ||
791 | if (tp->vlgrp && (opts2 & RxVlanTag)) { | |
792 | rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, | |
793 | swab16(opts2 & 0xffff)); | |
794 | ret = 0; | |
795 | } else | |
796 | ret = -1; | |
797 | desc->opts2 = 0; | |
798 | return ret; | |
799 | } | |
800 | ||
801 | #else /* !CONFIG_R8169_VLAN */ | |
802 | ||
803 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
804 | struct sk_buff *skb) | |
805 | { | |
806 | return 0; | |
807 | } | |
808 | ||
809 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
810 | struct sk_buff *skb) | |
811 | { | |
812 | return -1; | |
813 | } | |
814 | ||
815 | #endif | |
816 | ||
817 | static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) | |
818 | { | |
819 | struct rtl8169_private *tp = netdev_priv(dev); | |
820 | void __iomem *ioaddr = tp->mmio_addr; | |
821 | u32 status; | |
822 | ||
823 | cmd->supported = | |
824 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; | |
825 | cmd->port = PORT_FIBRE; | |
826 | cmd->transceiver = XCVR_INTERNAL; | |
827 | ||
828 | status = RTL_R32(TBICSR); | |
829 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; | |
830 | cmd->autoneg = !!(status & TBINwEnable); | |
831 | ||
832 | cmd->speed = SPEED_1000; | |
833 | cmd->duplex = DUPLEX_FULL; /* Always set */ | |
834 | } | |
835 | ||
836 | static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) | |
837 | { | |
838 | struct rtl8169_private *tp = netdev_priv(dev); | |
839 | void __iomem *ioaddr = tp->mmio_addr; | |
840 | u8 status; | |
841 | ||
842 | cmd->supported = SUPPORTED_10baseT_Half | | |
843 | SUPPORTED_10baseT_Full | | |
844 | SUPPORTED_100baseT_Half | | |
845 | SUPPORTED_100baseT_Full | | |
846 | SUPPORTED_1000baseT_Full | | |
847 | SUPPORTED_Autoneg | | |
848 | SUPPORTED_TP; | |
849 | ||
850 | cmd->autoneg = 1; | |
851 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; | |
852 | ||
853 | if (tp->phy_auto_nego_reg & PHY_Cap_10_Half) | |
854 | cmd->advertising |= ADVERTISED_10baseT_Half; | |
855 | if (tp->phy_auto_nego_reg & PHY_Cap_10_Full) | |
856 | cmd->advertising |= ADVERTISED_10baseT_Full; | |
857 | if (tp->phy_auto_nego_reg & PHY_Cap_100_Half) | |
858 | cmd->advertising |= ADVERTISED_100baseT_Half; | |
859 | if (tp->phy_auto_nego_reg & PHY_Cap_100_Full) | |
860 | cmd->advertising |= ADVERTISED_100baseT_Full; | |
861 | if (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full) | |
862 | cmd->advertising |= ADVERTISED_1000baseT_Full; | |
863 | ||
864 | status = RTL_R8(PHYstatus); | |
865 | ||
866 | if (status & _1000bpsF) | |
867 | cmd->speed = SPEED_1000; | |
868 | else if (status & _100bps) | |
869 | cmd->speed = SPEED_100; | |
870 | else if (status & _10bps) | |
871 | cmd->speed = SPEED_10; | |
872 | ||
873 | cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? | |
874 | DUPLEX_FULL : DUPLEX_HALF; | |
875 | } | |
876 | ||
877 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
878 | { | |
879 | struct rtl8169_private *tp = netdev_priv(dev); | |
880 | unsigned long flags; | |
881 | ||
882 | spin_lock_irqsave(&tp->lock, flags); | |
883 | ||
884 | tp->get_settings(dev, cmd); | |
885 | ||
886 | spin_unlock_irqrestore(&tp->lock, flags); | |
887 | return 0; | |
888 | } | |
889 | ||
890 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
891 | void *p) | |
892 | { | |
893 | struct rtl8169_private *tp = netdev_priv(dev); | |
894 | unsigned long flags; | |
895 | ||
896 | if (regs->len > R8169_REGS_SIZE) | |
897 | regs->len = R8169_REGS_SIZE; | |
898 | ||
899 | spin_lock_irqsave(&tp->lock, flags); | |
900 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
901 | spin_unlock_irqrestore(&tp->lock, flags); | |
902 | } | |
903 | ||
b57b7e5a SH |
904 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
905 | { | |
906 | struct rtl8169_private *tp = netdev_priv(dev); | |
907 | ||
908 | return tp->msg_enable; | |
909 | } | |
910 | ||
911 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) | |
912 | { | |
913 | struct rtl8169_private *tp = netdev_priv(dev); | |
914 | ||
915 | tp->msg_enable = value; | |
916 | } | |
917 | ||
d4a3a0fc SH |
918 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
919 | "tx_packets", | |
920 | "rx_packets", | |
921 | "tx_errors", | |
922 | "rx_errors", | |
923 | "rx_missed", | |
924 | "align_errors", | |
925 | "tx_single_collisions", | |
926 | "tx_multi_collisions", | |
927 | "unicast", | |
928 | "broadcast", | |
929 | "multicast", | |
930 | "tx_aborted", | |
931 | "tx_underrun", | |
932 | }; | |
933 | ||
934 | struct rtl8169_counters { | |
935 | u64 tx_packets; | |
936 | u64 rx_packets; | |
937 | u64 tx_errors; | |
938 | u32 rx_errors; | |
939 | u16 rx_missed; | |
940 | u16 align_errors; | |
941 | u32 tx_one_collision; | |
942 | u32 tx_multi_collision; | |
943 | u64 rx_unicast; | |
944 | u64 rx_broadcast; | |
945 | u32 rx_multicast; | |
946 | u16 tx_aborted; | |
947 | u16 tx_underun; | |
948 | }; | |
949 | ||
950 | static int rtl8169_get_stats_count(struct net_device *dev) | |
951 | { | |
952 | return ARRAY_SIZE(rtl8169_gstrings); | |
953 | } | |
954 | ||
955 | static void rtl8169_get_ethtool_stats(struct net_device *dev, | |
956 | struct ethtool_stats *stats, u64 *data) | |
957 | { | |
958 | struct rtl8169_private *tp = netdev_priv(dev); | |
959 | void __iomem *ioaddr = tp->mmio_addr; | |
960 | struct rtl8169_counters *counters; | |
961 | dma_addr_t paddr; | |
962 | u32 cmd; | |
963 | ||
964 | ASSERT_RTNL(); | |
965 | ||
966 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); | |
967 | if (!counters) | |
968 | return; | |
969 | ||
970 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); | |
971 | cmd = (u64)paddr & DMA_32BIT_MASK; | |
972 | RTL_W32(CounterAddrLow, cmd); | |
973 | RTL_W32(CounterAddrLow, cmd | CounterDump); | |
974 | ||
975 | while (RTL_R32(CounterAddrLow) & CounterDump) { | |
976 | if (msleep_interruptible(1)) | |
977 | break; | |
978 | } | |
979 | ||
980 | RTL_W32(CounterAddrLow, 0); | |
981 | RTL_W32(CounterAddrHigh, 0); | |
982 | ||
983 | data[0] = le64_to_cpu(counters->tx_packets); | |
984 | data[1] = le64_to_cpu(counters->rx_packets); | |
985 | data[2] = le64_to_cpu(counters->tx_errors); | |
986 | data[3] = le32_to_cpu(counters->rx_errors); | |
987 | data[4] = le16_to_cpu(counters->rx_missed); | |
988 | data[5] = le16_to_cpu(counters->align_errors); | |
989 | data[6] = le32_to_cpu(counters->tx_one_collision); | |
990 | data[7] = le32_to_cpu(counters->tx_multi_collision); | |
991 | data[8] = le64_to_cpu(counters->rx_unicast); | |
992 | data[9] = le64_to_cpu(counters->rx_broadcast); | |
993 | data[10] = le32_to_cpu(counters->rx_multicast); | |
994 | data[11] = le16_to_cpu(counters->tx_aborted); | |
995 | data[12] = le16_to_cpu(counters->tx_underun); | |
996 | ||
997 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); | |
998 | } | |
999 | ||
1000 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1001 | { | |
1002 | switch(stringset) { | |
1003 | case ETH_SS_STATS: | |
1004 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); | |
1005 | break; | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | ||
1da177e4 LT |
1010 | static struct ethtool_ops rtl8169_ethtool_ops = { |
1011 | .get_drvinfo = rtl8169_get_drvinfo, | |
1012 | .get_regs_len = rtl8169_get_regs_len, | |
1013 | .get_link = ethtool_op_get_link, | |
1014 | .get_settings = rtl8169_get_settings, | |
1015 | .set_settings = rtl8169_set_settings, | |
b57b7e5a SH |
1016 | .get_msglevel = rtl8169_get_msglevel, |
1017 | .set_msglevel = rtl8169_set_msglevel, | |
1da177e4 LT |
1018 | .get_rx_csum = rtl8169_get_rx_csum, |
1019 | .set_rx_csum = rtl8169_set_rx_csum, | |
1020 | .get_tx_csum = ethtool_op_get_tx_csum, | |
1021 | .set_tx_csum = ethtool_op_set_tx_csum, | |
1022 | .get_sg = ethtool_op_get_sg, | |
1023 | .set_sg = ethtool_op_set_sg, | |
1024 | .get_tso = ethtool_op_get_tso, | |
1025 | .set_tso = ethtool_op_set_tso, | |
1026 | .get_regs = rtl8169_get_regs, | |
d4a3a0fc SH |
1027 | .get_strings = rtl8169_get_strings, |
1028 | .get_stats_count = rtl8169_get_stats_count, | |
1029 | .get_ethtool_stats = rtl8169_get_ethtool_stats, | |
1da177e4 LT |
1030 | }; |
1031 | ||
1032 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, int bitnum, | |
1033 | int bitval) | |
1034 | { | |
1035 | int val; | |
1036 | ||
1037 | val = mdio_read(ioaddr, reg); | |
1038 | val = (bitval == 1) ? | |
1039 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); | |
1040 | mdio_write(ioaddr, reg, val & 0xffff); | |
1041 | } | |
1042 | ||
1043 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, void __iomem *ioaddr) | |
1044 | { | |
1045 | const struct { | |
1046 | u32 mask; | |
1047 | int mac_version; | |
1048 | } mac_info[] = { | |
1049 | { 0x1 << 28, RTL_GIGA_MAC_VER_X }, | |
1050 | { 0x1 << 26, RTL_GIGA_MAC_VER_E }, | |
1051 | { 0x1 << 23, RTL_GIGA_MAC_VER_D }, | |
1052 | { 0x00000000, RTL_GIGA_MAC_VER_B } /* Catch-all */ | |
1053 | }, *p = mac_info; | |
1054 | u32 reg; | |
1055 | ||
1056 | reg = RTL_R32(TxConfig) & 0x7c800000; | |
1057 | while ((reg & p->mask) != p->mask) | |
1058 | p++; | |
1059 | tp->mac_version = p->mac_version; | |
1060 | } | |
1061 | ||
1062 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) | |
1063 | { | |
1064 | struct { | |
1065 | int version; | |
1066 | char *msg; | |
1067 | } mac_print[] = { | |
1068 | { RTL_GIGA_MAC_VER_E, "RTL_GIGA_MAC_VER_E" }, | |
1069 | { RTL_GIGA_MAC_VER_D, "RTL_GIGA_MAC_VER_D" }, | |
1070 | { RTL_GIGA_MAC_VER_B, "RTL_GIGA_MAC_VER_B" }, | |
1071 | { 0, NULL } | |
1072 | }, *p; | |
1073 | ||
1074 | for (p = mac_print; p->msg; p++) { | |
1075 | if (tp->mac_version == p->version) { | |
1076 | dprintk("mac_version == %s (%04d)\n", p->msg, | |
1077 | p->version); | |
1078 | return; | |
1079 | } | |
1080 | } | |
1081 | dprintk("mac_version == Unknown\n"); | |
1082 | } | |
1083 | ||
1084 | static void rtl8169_get_phy_version(struct rtl8169_private *tp, void __iomem *ioaddr) | |
1085 | { | |
1086 | const struct { | |
1087 | u16 mask; | |
1088 | u16 set; | |
1089 | int phy_version; | |
1090 | } phy_info[] = { | |
1091 | { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, | |
1092 | { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, | |
1093 | { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, | |
1094 | { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ | |
1095 | }, *p = phy_info; | |
1096 | u16 reg; | |
1097 | ||
1098 | reg = mdio_read(ioaddr, 3) & 0xffff; | |
1099 | while ((reg & p->mask) != p->set) | |
1100 | p++; | |
1101 | tp->phy_version = p->phy_version; | |
1102 | } | |
1103 | ||
1104 | static void rtl8169_print_phy_version(struct rtl8169_private *tp) | |
1105 | { | |
1106 | struct { | |
1107 | int version; | |
1108 | char *msg; | |
1109 | u32 reg; | |
1110 | } phy_print[] = { | |
1111 | { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, | |
1112 | { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, | |
1113 | { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, | |
1114 | { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, | |
1115 | { 0, NULL, 0x0000 } | |
1116 | }, *p; | |
1117 | ||
1118 | for (p = phy_print; p->msg; p++) { | |
1119 | if (tp->phy_version == p->version) { | |
1120 | dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); | |
1121 | return; | |
1122 | } | |
1123 | } | |
1124 | dprintk("phy_version == Unknown\n"); | |
1125 | } | |
1126 | ||
1127 | static void rtl8169_hw_phy_config(struct net_device *dev) | |
1128 | { | |
1129 | struct rtl8169_private *tp = netdev_priv(dev); | |
1130 | void __iomem *ioaddr = tp->mmio_addr; | |
1131 | struct { | |
1132 | u16 regs[5]; /* Beware of bit-sign propagation */ | |
1133 | } phy_magic[5] = { { | |
1134 | { 0x0000, //w 4 15 12 0 | |
1135 | 0x00a1, //w 3 15 0 00a1 | |
1136 | 0x0008, //w 2 15 0 0008 | |
1137 | 0x1020, //w 1 15 0 1020 | |
1138 | 0x1000 } },{ //w 0 15 0 1000 | |
1139 | { 0x7000, //w 4 15 12 7 | |
1140 | 0xff41, //w 3 15 0 ff41 | |
1141 | 0xde60, //w 2 15 0 de60 | |
1142 | 0x0140, //w 1 15 0 0140 | |
1143 | 0x0077 } },{ //w 0 15 0 0077 | |
1144 | { 0xa000, //w 4 15 12 a | |
1145 | 0xdf01, //w 3 15 0 df01 | |
1146 | 0xdf20, //w 2 15 0 df20 | |
1147 | 0xff95, //w 1 15 0 ff95 | |
1148 | 0xfa00 } },{ //w 0 15 0 fa00 | |
1149 | { 0xb000, //w 4 15 12 b | |
1150 | 0xff41, //w 3 15 0 ff41 | |
1151 | 0xde20, //w 2 15 0 de20 | |
1152 | 0x0140, //w 1 15 0 0140 | |
1153 | 0x00bb } },{ //w 0 15 0 00bb | |
1154 | { 0xf000, //w 4 15 12 f | |
1155 | 0xdf01, //w 3 15 0 df01 | |
1156 | 0xdf20, //w 2 15 0 df20 | |
1157 | 0xff95, //w 1 15 0 ff95 | |
1158 | 0xbf00 } //w 0 15 0 bf00 | |
1159 | } | |
1160 | }, *p = phy_magic; | |
1161 | int i; | |
1162 | ||
1163 | rtl8169_print_mac_version(tp); | |
1164 | rtl8169_print_phy_version(tp); | |
1165 | ||
1166 | if (tp->mac_version <= RTL_GIGA_MAC_VER_B) | |
1167 | return; | |
1168 | if (tp->phy_version >= RTL_GIGA_PHY_VER_H) | |
1169 | return; | |
1170 | ||
1171 | dprintk("MAC version != 0 && PHY version == 0 or 1\n"); | |
1172 | dprintk("Do final_reg2.cfg\n"); | |
1173 | ||
1174 | /* Shazam ! */ | |
1175 | ||
1176 | if (tp->mac_version == RTL_GIGA_MAC_VER_X) { | |
1177 | mdio_write(ioaddr, 31, 0x0001); | |
1178 | mdio_write(ioaddr, 9, 0x273a); | |
1179 | mdio_write(ioaddr, 14, 0x7bfb); | |
1180 | mdio_write(ioaddr, 27, 0x841e); | |
1181 | ||
1182 | mdio_write(ioaddr, 31, 0x0002); | |
1183 | mdio_write(ioaddr, 1, 0x90d0); | |
1184 | mdio_write(ioaddr, 31, 0x0000); | |
1185 | return; | |
1186 | } | |
1187 | ||
1188 | /* phy config for RTL8169s mac_version C chip */ | |
1189 | mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 | |
1190 | mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 | |
1191 | mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 | |
1192 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1193 | ||
1194 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { | |
1195 | int val, pos = 4; | |
1196 | ||
1197 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); | |
1198 | mdio_write(ioaddr, pos, val); | |
1199 | while (--pos >= 0) | |
1200 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); | |
1201 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 | |
1202 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1203 | } | |
1204 | mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 | |
1205 | } | |
1206 | ||
1207 | static void rtl8169_phy_timer(unsigned long __opaque) | |
1208 | { | |
1209 | struct net_device *dev = (struct net_device *)__opaque; | |
1210 | struct rtl8169_private *tp = netdev_priv(dev); | |
1211 | struct timer_list *timer = &tp->timer; | |
1212 | void __iomem *ioaddr = tp->mmio_addr; | |
1213 | unsigned long timeout = RTL8169_PHY_TIMEOUT; | |
1214 | ||
1215 | assert(tp->mac_version > RTL_GIGA_MAC_VER_B); | |
1216 | assert(tp->phy_version < RTL_GIGA_PHY_VER_H); | |
1217 | ||
1218 | if (!(tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)) | |
1219 | return; | |
1220 | ||
1221 | spin_lock_irq(&tp->lock); | |
1222 | ||
1223 | if (tp->phy_reset_pending(ioaddr)) { | |
1224 | /* | |
1225 | * A busy loop could burn quite a few cycles on nowadays CPU. | |
1226 | * Let's delay the execution of the timer for a few ticks. | |
1227 | */ | |
1228 | timeout = HZ/10; | |
1229 | goto out_mod_timer; | |
1230 | } | |
1231 | ||
1232 | if (tp->link_ok(ioaddr)) | |
1233 | goto out_unlock; | |
1234 | ||
b57b7e5a SH |
1235 | if (netif_msg_link(tp)) |
1236 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); | |
1da177e4 LT |
1237 | |
1238 | tp->phy_reset_enable(ioaddr); | |
1239 | ||
1240 | out_mod_timer: | |
1241 | mod_timer(timer, jiffies + timeout); | |
1242 | out_unlock: | |
1243 | spin_unlock_irq(&tp->lock); | |
1244 | } | |
1245 | ||
1246 | static inline void rtl8169_delete_timer(struct net_device *dev) | |
1247 | { | |
1248 | struct rtl8169_private *tp = netdev_priv(dev); | |
1249 | struct timer_list *timer = &tp->timer; | |
1250 | ||
1251 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) || | |
1252 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) | |
1253 | return; | |
1254 | ||
1255 | del_timer_sync(timer); | |
1256 | } | |
1257 | ||
1258 | static inline void rtl8169_request_timer(struct net_device *dev) | |
1259 | { | |
1260 | struct rtl8169_private *tp = netdev_priv(dev); | |
1261 | struct timer_list *timer = &tp->timer; | |
1262 | ||
1263 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) || | |
1264 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) | |
1265 | return; | |
1266 | ||
1267 | init_timer(timer); | |
1268 | timer->expires = jiffies + RTL8169_PHY_TIMEOUT; | |
1269 | timer->data = (unsigned long)(dev); | |
1270 | timer->function = rtl8169_phy_timer; | |
1271 | add_timer(timer); | |
1272 | } | |
1273 | ||
1274 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1275 | /* | |
1276 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
1277 | * without having to re-enable interrupts. It's not called while | |
1278 | * the interrupt routine is executing. | |
1279 | */ | |
1280 | static void rtl8169_netpoll(struct net_device *dev) | |
1281 | { | |
1282 | struct rtl8169_private *tp = netdev_priv(dev); | |
1283 | struct pci_dev *pdev = tp->pci_dev; | |
1284 | ||
1285 | disable_irq(pdev->irq); | |
1286 | rtl8169_interrupt(pdev->irq, dev, NULL); | |
1287 | enable_irq(pdev->irq); | |
1288 | } | |
1289 | #endif | |
1290 | ||
1291 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, | |
1292 | void __iomem *ioaddr) | |
1293 | { | |
1294 | iounmap(ioaddr); | |
1295 | pci_release_regions(pdev); | |
1296 | pci_disable_device(pdev); | |
1297 | free_netdev(dev); | |
1298 | } | |
1299 | ||
1300 | static int __devinit | |
1301 | rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, | |
1302 | void __iomem **ioaddr_out) | |
1303 | { | |
1304 | void __iomem *ioaddr; | |
1305 | struct net_device *dev; | |
1306 | struct rtl8169_private *tp; | |
1307 | int rc = -ENOMEM, i, acpi_idle_state = 0, pm_cap; | |
1308 | ||
1309 | assert(ioaddr_out != NULL); | |
1310 | ||
1311 | /* dev zeroed in alloc_etherdev */ | |
1312 | dev = alloc_etherdev(sizeof (*tp)); | |
1313 | if (dev == NULL) { | |
b57b7e5a SH |
1314 | if (netif_msg_drv(&debug)) |
1315 | printk(KERN_ERR PFX "unable to alloc new ethernet\n"); | |
1da177e4 LT |
1316 | goto err_out; |
1317 | } | |
1318 | ||
1319 | SET_MODULE_OWNER(dev); | |
1320 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1321 | tp = netdev_priv(dev); | |
b57b7e5a | 1322 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
1da177e4 LT |
1323 | |
1324 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
1325 | rc = pci_enable_device(pdev); | |
b57b7e5a SH |
1326 | if (rc < 0) { |
1327 | if (netif_msg_probe(tp)) { | |
1328 | printk(KERN_ERR PFX "%s: enable failure\n", | |
1329 | pci_name(pdev)); | |
1330 | } | |
1da177e4 LT |
1331 | goto err_out_free_dev; |
1332 | } | |
1333 | ||
1334 | rc = pci_set_mwi(pdev); | |
1335 | if (rc < 0) | |
1336 | goto err_out_disable; | |
1337 | ||
1338 | /* save power state before pci_enable_device overwrites it */ | |
1339 | pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); | |
1340 | if (pm_cap) { | |
1341 | u16 pwr_command; | |
1342 | ||
1343 | pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command); | |
1344 | acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK; | |
1345 | } else { | |
b57b7e5a SH |
1346 | if (netif_msg_probe(tp)) { |
1347 | printk(KERN_ERR PFX | |
1348 | "Cannot find PowerManagement capability. " | |
1349 | "Aborting.\n"); | |
1350 | } | |
1da177e4 LT |
1351 | goto err_out_mwi; |
1352 | } | |
1353 | ||
1354 | /* make sure PCI base addr 1 is MMIO */ | |
1355 | if (!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { | |
b57b7e5a SH |
1356 | if (netif_msg_probe(tp)) { |
1357 | printk(KERN_ERR PFX | |
1358 | "region #1 not an MMIO resource, aborting\n"); | |
1359 | } | |
1da177e4 LT |
1360 | rc = -ENODEV; |
1361 | goto err_out_mwi; | |
1362 | } | |
1363 | /* check for weird/broken PCI region reporting */ | |
1364 | if (pci_resource_len(pdev, 1) < R8169_REGS_SIZE) { | |
b57b7e5a SH |
1365 | if (netif_msg_probe(tp)) { |
1366 | printk(KERN_ERR PFX | |
1367 | "Invalid PCI region size(s), aborting\n"); | |
1368 | } | |
1da177e4 LT |
1369 | rc = -ENODEV; |
1370 | goto err_out_mwi; | |
1371 | } | |
1372 | ||
1373 | rc = pci_request_regions(pdev, MODULENAME); | |
b57b7e5a SH |
1374 | if (rc < 0) { |
1375 | if (netif_msg_probe(tp)) { | |
1376 | printk(KERN_ERR PFX "%s: could not request regions.\n", | |
1377 | pci_name(pdev)); | |
1378 | } | |
1da177e4 LT |
1379 | goto err_out_mwi; |
1380 | } | |
1381 | ||
1382 | tp->cp_cmd = PCIMulRW | RxChkSum; | |
1383 | ||
1384 | if ((sizeof(dma_addr_t) > 4) && | |
1385 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { | |
1386 | tp->cp_cmd |= PCIDAC; | |
1387 | dev->features |= NETIF_F_HIGHDMA; | |
1388 | } else { | |
1389 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1390 | if (rc < 0) { | |
b57b7e5a SH |
1391 | if (netif_msg_probe(tp)) { |
1392 | printk(KERN_ERR PFX | |
1393 | "DMA configuration failed.\n"); | |
1394 | } | |
1da177e4 LT |
1395 | goto err_out_free_res; |
1396 | } | |
1397 | } | |
1398 | ||
1399 | pci_set_master(pdev); | |
1400 | ||
1401 | /* ioremap MMIO region */ | |
1402 | ioaddr = ioremap(pci_resource_start(pdev, 1), R8169_REGS_SIZE); | |
1403 | if (ioaddr == NULL) { | |
b57b7e5a SH |
1404 | if (netif_msg_probe(tp)) |
1405 | printk(KERN_ERR PFX "cannot remap MMIO, aborting\n"); | |
1da177e4 LT |
1406 | rc = -EIO; |
1407 | goto err_out_free_res; | |
1408 | } | |
1409 | ||
1410 | /* Unneeded ? Don't mess with Mrs. Murphy. */ | |
1411 | rtl8169_irq_mask_and_ack(ioaddr); | |
1412 | ||
1413 | /* Soft reset the chip. */ | |
1414 | RTL_W8(ChipCmd, CmdReset); | |
1415 | ||
1416 | /* Check that the chip has finished the reset. */ | |
1417 | for (i = 1000; i > 0; i--) { | |
1418 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) | |
1419 | break; | |
1420 | udelay(10); | |
1421 | } | |
1422 | ||
1423 | /* Identify chip attached to board */ | |
1424 | rtl8169_get_mac_version(tp, ioaddr); | |
1425 | rtl8169_get_phy_version(tp, ioaddr); | |
1426 | ||
1427 | rtl8169_print_mac_version(tp); | |
1428 | rtl8169_print_phy_version(tp); | |
1429 | ||
1430 | for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { | |
1431 | if (tp->mac_version == rtl_chip_info[i].mac_version) | |
1432 | break; | |
1433 | } | |
1434 | if (i < 0) { | |
1435 | /* Unknown chip: assume array element #0, original RTL-8169 */ | |
b57b7e5a SH |
1436 | if (netif_msg_probe(tp)) { |
1437 | printk(KERN_DEBUG PFX "PCI device %s: " | |
1438 | "unknown chip version, assuming %s\n", | |
1439 | pci_name(pdev), rtl_chip_info[0].name); | |
1440 | } | |
1da177e4 LT |
1441 | i++; |
1442 | } | |
1443 | tp->chipset = i; | |
1444 | ||
1445 | *ioaddr_out = ioaddr; | |
1446 | *dev_out = dev; | |
1447 | out: | |
1448 | return rc; | |
1449 | ||
1450 | err_out_free_res: | |
1451 | pci_release_regions(pdev); | |
1452 | ||
1453 | err_out_mwi: | |
1454 | pci_clear_mwi(pdev); | |
1455 | ||
1456 | err_out_disable: | |
1457 | pci_disable_device(pdev); | |
1458 | ||
1459 | err_out_free_dev: | |
1460 | free_netdev(dev); | |
1461 | err_out: | |
1462 | *ioaddr_out = NULL; | |
1463 | *dev_out = NULL; | |
1464 | goto out; | |
1465 | } | |
1466 | ||
1467 | static int __devinit | |
1468 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1469 | { | |
1470 | struct net_device *dev = NULL; | |
1471 | struct rtl8169_private *tp; | |
1472 | void __iomem *ioaddr = NULL; | |
1473 | static int board_idx = -1; | |
1da177e4 LT |
1474 | u8 autoneg, duplex; |
1475 | u16 speed; | |
1476 | int i, rc; | |
1477 | ||
1478 | assert(pdev != NULL); | |
1479 | assert(ent != NULL); | |
1480 | ||
1481 | board_idx++; | |
1482 | ||
b57b7e5a | 1483 | if (netif_msg_drv(&debug)) { |
1da177e4 LT |
1484 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", |
1485 | MODULENAME, RTL8169_VERSION); | |
1da177e4 LT |
1486 | } |
1487 | ||
1488 | rc = rtl8169_init_board(pdev, &dev, &ioaddr); | |
1489 | if (rc) | |
1490 | return rc; | |
1491 | ||
1492 | tp = netdev_priv(dev); | |
1493 | assert(ioaddr != NULL); | |
1494 | ||
1495 | if (RTL_R8(PHYstatus) & TBI_Enable) { | |
1496 | tp->set_speed = rtl8169_set_speed_tbi; | |
1497 | tp->get_settings = rtl8169_gset_tbi; | |
1498 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; | |
1499 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; | |
1500 | tp->link_ok = rtl8169_tbi_link_ok; | |
1501 | ||
1502 | tp->phy_1000_ctrl_reg = PHY_Cap_1000_Full; /* Implied by TBI */ | |
1503 | } else { | |
1504 | tp->set_speed = rtl8169_set_speed_xmii; | |
1505 | tp->get_settings = rtl8169_gset_xmii; | |
1506 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; | |
1507 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; | |
1508 | tp->link_ok = rtl8169_xmii_link_ok; | |
1509 | } | |
1510 | ||
1511 | /* Get MAC address. FIXME: read EEPROM */ | |
1512 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1513 | dev->dev_addr[i] = RTL_R8(MAC0 + i); | |
1514 | ||
1515 | dev->open = rtl8169_open; | |
1516 | dev->hard_start_xmit = rtl8169_start_xmit; | |
1517 | dev->get_stats = rtl8169_get_stats; | |
1518 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); | |
1519 | dev->stop = rtl8169_close; | |
1520 | dev->tx_timeout = rtl8169_tx_timeout; | |
1521 | dev->set_multicast_list = rtl8169_set_rx_mode; | |
1522 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; | |
1523 | dev->irq = pdev->irq; | |
1524 | dev->base_addr = (unsigned long) ioaddr; | |
1525 | dev->change_mtu = rtl8169_change_mtu; | |
1526 | ||
1527 | #ifdef CONFIG_R8169_NAPI | |
1528 | dev->poll = rtl8169_poll; | |
1529 | dev->weight = R8169_NAPI_WEIGHT; | |
1da177e4 LT |
1530 | #endif |
1531 | ||
1532 | #ifdef CONFIG_R8169_VLAN | |
1533 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1534 | dev->vlan_rx_register = rtl8169_vlan_rx_register; | |
1535 | dev->vlan_rx_kill_vid = rtl8169_vlan_rx_kill_vid; | |
1536 | #endif | |
1537 | ||
1538 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1539 | dev->poll_controller = rtl8169_netpoll; | |
1540 | #endif | |
1541 | ||
1542 | tp->intr_mask = 0xffff; | |
1543 | tp->pci_dev = pdev; | |
1544 | tp->mmio_addr = ioaddr; | |
1545 | ||
1546 | spin_lock_init(&tp->lock); | |
1547 | ||
1548 | rc = register_netdev(dev); | |
1549 | if (rc) { | |
1550 | rtl8169_release_board(pdev, dev, ioaddr); | |
1551 | return rc; | |
1552 | } | |
1553 | ||
b57b7e5a SH |
1554 | if (netif_msg_probe(tp)) { |
1555 | printk(KERN_DEBUG "%s: Identified chip type is '%s'.\n", | |
1556 | dev->name, rtl_chip_info[tp->chipset].name); | |
1557 | } | |
1da177e4 LT |
1558 | |
1559 | pci_set_drvdata(pdev, dev); | |
1560 | ||
b57b7e5a SH |
1561 | if (netif_msg_probe(tp)) { |
1562 | printk(KERN_INFO "%s: %s at 0x%lx, " | |
1563 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " | |
1564 | "IRQ %d\n", | |
1565 | dev->name, | |
1566 | rtl_chip_info[ent->driver_data].name, | |
1567 | dev->base_addr, | |
1568 | dev->dev_addr[0], dev->dev_addr[1], | |
1569 | dev->dev_addr[2], dev->dev_addr[3], | |
1570 | dev->dev_addr[4], dev->dev_addr[5], dev->irq); | |
1571 | } | |
1da177e4 LT |
1572 | |
1573 | rtl8169_hw_phy_config(dev); | |
1574 | ||
1575 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1576 | RTL_W8(0x82, 0x01); | |
1577 | ||
1578 | if (tp->mac_version < RTL_GIGA_MAC_VER_E) { | |
1579 | dprintk("Set PCI Latency=0x40\n"); | |
1580 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40); | |
1581 | } | |
1582 | ||
1583 | if (tp->mac_version == RTL_GIGA_MAC_VER_D) { | |
1584 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1585 | RTL_W8(0x82, 0x01); | |
1586 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); | |
1587 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 | |
1588 | } | |
1589 | ||
1590 | rtl8169_link_option(board_idx, &autoneg, &speed, &duplex); | |
1591 | ||
1592 | rtl8169_set_speed(dev, autoneg, speed, duplex); | |
1593 | ||
b57b7e5a | 1594 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) |
1da177e4 LT |
1595 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); |
1596 | ||
1597 | return 0; | |
1598 | } | |
1599 | ||
1600 | static void __devexit | |
1601 | rtl8169_remove_one(struct pci_dev *pdev) | |
1602 | { | |
1603 | struct net_device *dev = pci_get_drvdata(pdev); | |
1604 | struct rtl8169_private *tp = netdev_priv(dev); | |
1605 | ||
1606 | assert(dev != NULL); | |
1607 | assert(tp != NULL); | |
1608 | ||
1609 | unregister_netdev(dev); | |
1610 | rtl8169_release_board(pdev, dev, tp->mmio_addr); | |
1611 | pci_set_drvdata(pdev, NULL); | |
1612 | } | |
1613 | ||
1614 | #ifdef CONFIG_PM | |
1615 | ||
05adc3b7 | 1616 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) |
1da177e4 LT |
1617 | { |
1618 | struct net_device *dev = pci_get_drvdata(pdev); | |
1619 | struct rtl8169_private *tp = netdev_priv(dev); | |
1620 | void __iomem *ioaddr = tp->mmio_addr; | |
1621 | unsigned long flags; | |
1622 | ||
1623 | if (!netif_running(dev)) | |
1624 | return 0; | |
1625 | ||
1626 | netif_device_detach(dev); | |
1627 | netif_stop_queue(dev); | |
1628 | spin_lock_irqsave(&tp->lock, flags); | |
1629 | ||
1630 | /* Disable interrupts, stop Rx and Tx */ | |
1631 | RTL_W16(IntrMask, 0); | |
1632 | RTL_W8(ChipCmd, 0); | |
1633 | ||
1634 | /* Update the error counts. */ | |
1635 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
1636 | RTL_W32(RxMissed, 0); | |
1637 | spin_unlock_irqrestore(&tp->lock, flags); | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | ||
1642 | static int rtl8169_resume(struct pci_dev *pdev) | |
1643 | { | |
1644 | struct net_device *dev = pci_get_drvdata(pdev); | |
1645 | ||
1646 | if (!netif_running(dev)) | |
1647 | return 0; | |
1648 | ||
1649 | netif_device_attach(dev); | |
1650 | rtl8169_hw_start(dev); | |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
1655 | #endif /* CONFIG_PM */ | |
1656 | ||
1657 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, | |
1658 | struct net_device *dev) | |
1659 | { | |
1660 | unsigned int mtu = dev->mtu; | |
1661 | ||
1662 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
1663 | } | |
1664 | ||
1665 | static int rtl8169_open(struct net_device *dev) | |
1666 | { | |
1667 | struct rtl8169_private *tp = netdev_priv(dev); | |
1668 | struct pci_dev *pdev = tp->pci_dev; | |
1669 | int retval; | |
1670 | ||
1671 | rtl8169_set_rxbufsize(tp, dev); | |
1672 | ||
1673 | retval = | |
1674 | request_irq(dev->irq, rtl8169_interrupt, SA_SHIRQ, dev->name, dev); | |
1675 | if (retval < 0) | |
1676 | goto out; | |
1677 | ||
1678 | retval = -ENOMEM; | |
1679 | ||
1680 | /* | |
1681 | * Rx and Tx desscriptors needs 256 bytes alignment. | |
1682 | * pci_alloc_consistent provides more. | |
1683 | */ | |
1684 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, | |
1685 | &tp->TxPhyAddr); | |
1686 | if (!tp->TxDescArray) | |
1687 | goto err_free_irq; | |
1688 | ||
1689 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, | |
1690 | &tp->RxPhyAddr); | |
1691 | if (!tp->RxDescArray) | |
1692 | goto err_free_tx; | |
1693 | ||
1694 | retval = rtl8169_init_ring(dev); | |
1695 | if (retval < 0) | |
1696 | goto err_free_rx; | |
1697 | ||
1698 | INIT_WORK(&tp->task, NULL, dev); | |
1699 | ||
1700 | rtl8169_hw_start(dev); | |
1701 | ||
1702 | rtl8169_request_timer(dev); | |
1703 | ||
1704 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); | |
1705 | out: | |
1706 | return retval; | |
1707 | ||
1708 | err_free_rx: | |
1709 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, | |
1710 | tp->RxPhyAddr); | |
1711 | err_free_tx: | |
1712 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
1713 | tp->TxPhyAddr); | |
1714 | err_free_irq: | |
1715 | free_irq(dev->irq, dev); | |
1716 | goto out; | |
1717 | } | |
1718 | ||
1719 | static void rtl8169_hw_reset(void __iomem *ioaddr) | |
1720 | { | |
1721 | /* Disable interrupts */ | |
1722 | rtl8169_irq_mask_and_ack(ioaddr); | |
1723 | ||
1724 | /* Reset the chipset */ | |
1725 | RTL_W8(ChipCmd, CmdReset); | |
1726 | ||
1727 | /* PCI commit */ | |
1728 | RTL_R8(ChipCmd); | |
1729 | } | |
1730 | ||
1731 | static void | |
1732 | rtl8169_hw_start(struct net_device *dev) | |
1733 | { | |
1734 | struct rtl8169_private *tp = netdev_priv(dev); | |
1735 | void __iomem *ioaddr = tp->mmio_addr; | |
1736 | u32 i; | |
1737 | ||
1738 | /* Soft reset the chip. */ | |
1739 | RTL_W8(ChipCmd, CmdReset); | |
1740 | ||
1741 | /* Check that the chip has finished the reset. */ | |
1742 | for (i = 1000; i > 0; i--) { | |
1743 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) | |
1744 | break; | |
1745 | udelay(10); | |
1746 | } | |
1747 | ||
1748 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
1749 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1750 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
1751 | ||
126fa4b9 FR |
1752 | /* Low hurts. Let's disable the filtering. */ |
1753 | RTL_W16(RxMaxSize, 16383); | |
1da177e4 LT |
1754 | |
1755 | /* Set Rx Config register */ | |
1756 | i = rtl8169_rx_config | | |
1757 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
1758 | RTL_W32(RxConfig, i); | |
1759 | ||
1760 | /* Set DMA burst size and Interframe Gap Time */ | |
1761 | RTL_W32(TxConfig, | |
1762 | (TX_DMA_BURST << TxDMAShift) | (InterFrameGap << | |
1763 | TxInterFrameGapShift)); | |
1764 | tp->cp_cmd |= RTL_R16(CPlusCmd); | |
1765 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
1766 | ||
1767 | if ((tp->mac_version == RTL_GIGA_MAC_VER_D) || | |
1768 | (tp->mac_version == RTL_GIGA_MAC_VER_E)) { | |
1769 | dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " | |
1770 | "Bit-3 and bit-14 MUST be 1\n"); | |
1771 | tp->cp_cmd |= (1 << 14) | PCIMulRW; | |
1772 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
1773 | } | |
1774 | ||
1775 | /* | |
1776 | * Undocumented corner. Supposedly: | |
1777 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets | |
1778 | */ | |
1779 | RTL_W16(IntrMitigate, 0x0000); | |
1780 | ||
1781 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr & DMA_32BIT_MASK)); | |
1782 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr >> 32)); | |
1783 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr & DMA_32BIT_MASK)); | |
1784 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr >> 32)); | |
1785 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1786 | udelay(10); | |
1787 | ||
1788 | RTL_W32(RxMissed, 0); | |
1789 | ||
1790 | rtl8169_set_rx_mode(dev); | |
1791 | ||
1792 | /* no early-rx interrupts */ | |
1793 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); | |
1794 | ||
1795 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1796 | RTL_W16(IntrMask, rtl8169_intr_mask); | |
1797 | ||
1798 | netif_start_queue(dev); | |
1799 | } | |
1800 | ||
1801 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) | |
1802 | { | |
1803 | struct rtl8169_private *tp = netdev_priv(dev); | |
1804 | int ret = 0; | |
1805 | ||
1806 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) | |
1807 | return -EINVAL; | |
1808 | ||
1809 | dev->mtu = new_mtu; | |
1810 | ||
1811 | if (!netif_running(dev)) | |
1812 | goto out; | |
1813 | ||
1814 | rtl8169_down(dev); | |
1815 | ||
1816 | rtl8169_set_rxbufsize(tp, dev); | |
1817 | ||
1818 | ret = rtl8169_init_ring(dev); | |
1819 | if (ret < 0) | |
1820 | goto out; | |
1821 | ||
1822 | netif_poll_enable(dev); | |
1823 | ||
1824 | rtl8169_hw_start(dev); | |
1825 | ||
1826 | rtl8169_request_timer(dev); | |
1827 | ||
1828 | out: | |
1829 | return ret; | |
1830 | } | |
1831 | ||
1832 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) | |
1833 | { | |
1834 | desc->addr = 0x0badbadbadbadbadull; | |
1835 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); | |
1836 | } | |
1837 | ||
1838 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, | |
1839 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
1840 | { | |
1841 | struct pci_dev *pdev = tp->pci_dev; | |
1842 | ||
1843 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
1844 | PCI_DMA_FROMDEVICE); | |
1845 | dev_kfree_skb(*sk_buff); | |
1846 | *sk_buff = NULL; | |
1847 | rtl8169_make_unusable_by_asic(desc); | |
1848 | } | |
1849 | ||
1850 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
1851 | { | |
1852 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; | |
1853 | ||
1854 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); | |
1855 | } | |
1856 | ||
1857 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
1858 | u32 rx_buf_sz) | |
1859 | { | |
1860 | desc->addr = cpu_to_le64(mapping); | |
1861 | wmb(); | |
1862 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
1863 | } | |
1864 | ||
1865 | static int rtl8169_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, | |
1866 | struct RxDesc *desc, int rx_buf_sz) | |
1867 | { | |
1868 | struct sk_buff *skb; | |
1869 | dma_addr_t mapping; | |
1870 | int ret = 0; | |
1871 | ||
1872 | skb = dev_alloc_skb(rx_buf_sz + NET_IP_ALIGN); | |
1873 | if (!skb) | |
1874 | goto err_out; | |
1875 | ||
1876 | skb_reserve(skb, NET_IP_ALIGN); | |
1877 | *sk_buff = skb; | |
1878 | ||
1879 | mapping = pci_map_single(pdev, skb->tail, rx_buf_sz, | |
1880 | PCI_DMA_FROMDEVICE); | |
1881 | ||
1882 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); | |
1883 | ||
1884 | out: | |
1885 | return ret; | |
1886 | ||
1887 | err_out: | |
1888 | ret = -ENOMEM; | |
1889 | rtl8169_make_unusable_by_asic(desc); | |
1890 | goto out; | |
1891 | } | |
1892 | ||
1893 | static void rtl8169_rx_clear(struct rtl8169_private *tp) | |
1894 | { | |
1895 | int i; | |
1896 | ||
1897 | for (i = 0; i < NUM_RX_DESC; i++) { | |
1898 | if (tp->Rx_skbuff[i]) { | |
1899 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, | |
1900 | tp->RxDescArray + i); | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | ||
1905 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, | |
1906 | u32 start, u32 end) | |
1907 | { | |
1908 | u32 cur; | |
1909 | ||
1910 | for (cur = start; end - cur > 0; cur++) { | |
1911 | int ret, i = cur % NUM_RX_DESC; | |
1912 | ||
1913 | if (tp->Rx_skbuff[i]) | |
1914 | continue; | |
1915 | ||
1916 | ret = rtl8169_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, | |
1917 | tp->RxDescArray + i, tp->rx_buf_sz); | |
1918 | if (ret < 0) | |
1919 | break; | |
1920 | } | |
1921 | return cur - start; | |
1922 | } | |
1923 | ||
1924 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) | |
1925 | { | |
1926 | desc->opts1 |= cpu_to_le32(RingEnd); | |
1927 | } | |
1928 | ||
1929 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) | |
1930 | { | |
1931 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
1932 | } | |
1933 | ||
1934 | static int rtl8169_init_ring(struct net_device *dev) | |
1935 | { | |
1936 | struct rtl8169_private *tp = netdev_priv(dev); | |
1937 | ||
1938 | rtl8169_init_ring_indexes(tp); | |
1939 | ||
1940 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); | |
1941 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
1942 | ||
1943 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
1944 | goto err_out; | |
1945 | ||
1946 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); | |
1947 | ||
1948 | return 0; | |
1949 | ||
1950 | err_out: | |
1951 | rtl8169_rx_clear(tp); | |
1952 | return -ENOMEM; | |
1953 | } | |
1954 | ||
1955 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, | |
1956 | struct TxDesc *desc) | |
1957 | { | |
1958 | unsigned int len = tx_skb->len; | |
1959 | ||
1960 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
1961 | desc->opts1 = 0x00; | |
1962 | desc->opts2 = 0x00; | |
1963 | desc->addr = 0x00; | |
1964 | tx_skb->len = 0; | |
1965 | } | |
1966 | ||
1967 | static void rtl8169_tx_clear(struct rtl8169_private *tp) | |
1968 | { | |
1969 | unsigned int i; | |
1970 | ||
1971 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { | |
1972 | unsigned int entry = i % NUM_TX_DESC; | |
1973 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
1974 | unsigned int len = tx_skb->len; | |
1975 | ||
1976 | if (len) { | |
1977 | struct sk_buff *skb = tx_skb->skb; | |
1978 | ||
1979 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, | |
1980 | tp->TxDescArray + entry); | |
1981 | if (skb) { | |
1982 | dev_kfree_skb(skb); | |
1983 | tx_skb->skb = NULL; | |
1984 | } | |
1985 | tp->stats.tx_dropped++; | |
1986 | } | |
1987 | } | |
1988 | tp->cur_tx = tp->dirty_tx = 0; | |
1989 | } | |
1990 | ||
1991 | static void rtl8169_schedule_work(struct net_device *dev, void (*task)(void *)) | |
1992 | { | |
1993 | struct rtl8169_private *tp = netdev_priv(dev); | |
1994 | ||
1995 | PREPARE_WORK(&tp->task, task, dev); | |
1996 | schedule_delayed_work(&tp->task, 4); | |
1997 | } | |
1998 | ||
1999 | static void rtl8169_wait_for_quiescence(struct net_device *dev) | |
2000 | { | |
2001 | struct rtl8169_private *tp = netdev_priv(dev); | |
2002 | void __iomem *ioaddr = tp->mmio_addr; | |
2003 | ||
2004 | synchronize_irq(dev->irq); | |
2005 | ||
2006 | /* Wait for any pending NAPI task to complete */ | |
2007 | netif_poll_disable(dev); | |
2008 | ||
2009 | rtl8169_irq_mask_and_ack(ioaddr); | |
2010 | ||
2011 | netif_poll_enable(dev); | |
2012 | } | |
2013 | ||
2014 | static void rtl8169_reinit_task(void *_data) | |
2015 | { | |
2016 | struct net_device *dev = _data; | |
2017 | int ret; | |
2018 | ||
2019 | if (netif_running(dev)) { | |
2020 | rtl8169_wait_for_quiescence(dev); | |
2021 | rtl8169_close(dev); | |
2022 | } | |
2023 | ||
2024 | ret = rtl8169_open(dev); | |
2025 | if (unlikely(ret < 0)) { | |
2026 | if (net_ratelimit()) { | |
b57b7e5a SH |
2027 | struct rtl8169_private *tp = netdev_priv(dev); |
2028 | ||
2029 | if (netif_msg_drv(tp)) { | |
2030 | printk(PFX KERN_ERR | |
2031 | "%s: reinit failure (status = %d)." | |
2032 | " Rescheduling.\n", dev->name, ret); | |
2033 | } | |
1da177e4 LT |
2034 | } |
2035 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | static void rtl8169_reset_task(void *_data) | |
2040 | { | |
2041 | struct net_device *dev = _data; | |
2042 | struct rtl8169_private *tp = netdev_priv(dev); | |
2043 | ||
2044 | if (!netif_running(dev)) | |
2045 | return; | |
2046 | ||
2047 | rtl8169_wait_for_quiescence(dev); | |
2048 | ||
2049 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr); | |
2050 | rtl8169_tx_clear(tp); | |
2051 | ||
2052 | if (tp->dirty_rx == tp->cur_rx) { | |
2053 | rtl8169_init_ring_indexes(tp); | |
2054 | rtl8169_hw_start(dev); | |
2055 | netif_wake_queue(dev); | |
2056 | } else { | |
2057 | if (net_ratelimit()) { | |
b57b7e5a SH |
2058 | struct rtl8169_private *tp = netdev_priv(dev); |
2059 | ||
2060 | if (netif_msg_intr(tp)) { | |
2061 | printk(PFX KERN_EMERG | |
2062 | "%s: Rx buffers shortage\n", dev->name); | |
2063 | } | |
1da177e4 LT |
2064 | } |
2065 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | static void rtl8169_tx_timeout(struct net_device *dev) | |
2070 | { | |
2071 | struct rtl8169_private *tp = netdev_priv(dev); | |
2072 | ||
2073 | rtl8169_hw_reset(tp->mmio_addr); | |
2074 | ||
2075 | /* Let's wait a bit while any (async) irq lands on */ | |
2076 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2077 | } | |
2078 | ||
2079 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, | |
2080 | u32 opts1) | |
2081 | { | |
2082 | struct skb_shared_info *info = skb_shinfo(skb); | |
2083 | unsigned int cur_frag, entry; | |
2084 | struct TxDesc *txd; | |
2085 | ||
2086 | entry = tp->cur_tx; | |
2087 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { | |
2088 | skb_frag_t *frag = info->frags + cur_frag; | |
2089 | dma_addr_t mapping; | |
2090 | u32 status, len; | |
2091 | void *addr; | |
2092 | ||
2093 | entry = (entry + 1) % NUM_TX_DESC; | |
2094 | ||
2095 | txd = tp->TxDescArray + entry; | |
2096 | len = frag->size; | |
2097 | addr = ((void *) page_address(frag->page)) + frag->page_offset; | |
2098 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); | |
2099 | ||
2100 | /* anti gcc 2.95.3 bugware (sic) */ | |
2101 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2102 | ||
2103 | txd->opts1 = cpu_to_le32(status); | |
2104 | txd->addr = cpu_to_le64(mapping); | |
2105 | ||
2106 | tp->tx_skb[entry].len = len; | |
2107 | } | |
2108 | ||
2109 | if (cur_frag) { | |
2110 | tp->tx_skb[entry].skb = skb; | |
2111 | txd->opts1 |= cpu_to_le32(LastFrag); | |
2112 | } | |
2113 | ||
2114 | return cur_frag; | |
2115 | } | |
2116 | ||
2117 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) | |
2118 | { | |
2119 | if (dev->features & NETIF_F_TSO) { | |
2120 | u32 mss = skb_shinfo(skb)->tso_size; | |
2121 | ||
2122 | if (mss) | |
2123 | return LargeSend | ((mss & MSSMask) << MSSShift); | |
2124 | } | |
2125 | if (skb->ip_summed == CHECKSUM_HW) { | |
2126 | const struct iphdr *ip = skb->nh.iph; | |
2127 | ||
2128 | if (ip->protocol == IPPROTO_TCP) | |
2129 | return IPCS | TCPCS; | |
2130 | else if (ip->protocol == IPPROTO_UDP) | |
2131 | return IPCS | UDPCS; | |
2132 | WARN_ON(1); /* we need a WARN() */ | |
2133 | } | |
2134 | return 0; | |
2135 | } | |
2136 | ||
2137 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2138 | { | |
2139 | struct rtl8169_private *tp = netdev_priv(dev); | |
2140 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; | |
2141 | struct TxDesc *txd = tp->TxDescArray + entry; | |
2142 | void __iomem *ioaddr = tp->mmio_addr; | |
2143 | dma_addr_t mapping; | |
2144 | u32 status, len; | |
2145 | u32 opts1; | |
2146 | int ret = 0; | |
2147 | ||
2148 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { | |
b57b7e5a SH |
2149 | if (netif_msg_drv(tp)) { |
2150 | printk(KERN_ERR | |
2151 | "%s: BUG! Tx Ring full when queue awake!\n", | |
2152 | dev->name); | |
2153 | } | |
1da177e4 LT |
2154 | goto err_stop; |
2155 | } | |
2156 | ||
2157 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) | |
2158 | goto err_stop; | |
2159 | ||
2160 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); | |
2161 | ||
2162 | frags = rtl8169_xmit_frags(tp, skb, opts1); | |
2163 | if (frags) { | |
2164 | len = skb_headlen(skb); | |
2165 | opts1 |= FirstFrag; | |
2166 | } else { | |
2167 | len = skb->len; | |
2168 | ||
2169 | if (unlikely(len < ETH_ZLEN)) { | |
2170 | skb = skb_padto(skb, ETH_ZLEN); | |
2171 | if (!skb) | |
2172 | goto err_update_stats; | |
2173 | len = ETH_ZLEN; | |
2174 | } | |
2175 | ||
2176 | opts1 |= FirstFrag | LastFrag; | |
2177 | tp->tx_skb[entry].skb = skb; | |
2178 | } | |
2179 | ||
2180 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
2181 | ||
2182 | tp->tx_skb[entry].len = len; | |
2183 | txd->addr = cpu_to_le64(mapping); | |
2184 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); | |
2185 | ||
2186 | wmb(); | |
2187 | ||
2188 | /* anti gcc 2.95.3 bugware (sic) */ | |
2189 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2190 | txd->opts1 = cpu_to_le32(status); | |
2191 | ||
2192 | dev->trans_start = jiffies; | |
2193 | ||
2194 | tp->cur_tx += frags + 1; | |
2195 | ||
2196 | smp_wmb(); | |
2197 | ||
2198 | RTL_W8(TxPoll, 0x40); /* set polling bit */ | |
2199 | ||
2200 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { | |
2201 | netif_stop_queue(dev); | |
2202 | smp_rmb(); | |
2203 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) | |
2204 | netif_wake_queue(dev); | |
2205 | } | |
2206 | ||
2207 | out: | |
2208 | return ret; | |
2209 | ||
2210 | err_stop: | |
2211 | netif_stop_queue(dev); | |
2212 | ret = 1; | |
2213 | err_update_stats: | |
2214 | tp->stats.tx_dropped++; | |
2215 | goto out; | |
2216 | } | |
2217 | ||
2218 | static void rtl8169_pcierr_interrupt(struct net_device *dev) | |
2219 | { | |
2220 | struct rtl8169_private *tp = netdev_priv(dev); | |
2221 | struct pci_dev *pdev = tp->pci_dev; | |
2222 | void __iomem *ioaddr = tp->mmio_addr; | |
2223 | u16 pci_status, pci_cmd; | |
2224 | ||
2225 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); | |
2226 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
2227 | ||
b57b7e5a SH |
2228 | if (netif_msg_intr(tp)) { |
2229 | printk(KERN_ERR | |
2230 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", | |
2231 | dev->name, pci_cmd, pci_status); | |
2232 | } | |
1da177e4 LT |
2233 | |
2234 | /* | |
2235 | * The recovery sequence below admits a very elaborated explanation: | |
2236 | * - it seems to work; | |
2237 | * - I did not see what else could be done. | |
2238 | * | |
2239 | * Feel free to adjust to your needs. | |
2240 | */ | |
2241 | pci_write_config_word(pdev, PCI_COMMAND, | |
2242 | pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); | |
2243 | ||
2244 | pci_write_config_word(pdev, PCI_STATUS, | |
2245 | pci_status & (PCI_STATUS_DETECTED_PARITY | | |
2246 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | | |
2247 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); | |
2248 | ||
2249 | /* The infamous DAC f*ckup only happens at boot time */ | |
2250 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { | |
b57b7e5a SH |
2251 | if (netif_msg_intr(tp)) |
2252 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); | |
1da177e4 LT |
2253 | tp->cp_cmd &= ~PCIDAC; |
2254 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2255 | dev->features &= ~NETIF_F_HIGHDMA; | |
2256 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2257 | } | |
2258 | ||
2259 | rtl8169_hw_reset(ioaddr); | |
2260 | } | |
2261 | ||
2262 | static void | |
2263 | rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp, | |
2264 | void __iomem *ioaddr) | |
2265 | { | |
2266 | unsigned int dirty_tx, tx_left; | |
2267 | ||
2268 | assert(dev != NULL); | |
2269 | assert(tp != NULL); | |
2270 | assert(ioaddr != NULL); | |
2271 | ||
2272 | dirty_tx = tp->dirty_tx; | |
2273 | smp_rmb(); | |
2274 | tx_left = tp->cur_tx - dirty_tx; | |
2275 | ||
2276 | while (tx_left > 0) { | |
2277 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
2278 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2279 | u32 len = tx_skb->len; | |
2280 | u32 status; | |
2281 | ||
2282 | rmb(); | |
2283 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); | |
2284 | if (status & DescOwn) | |
2285 | break; | |
2286 | ||
2287 | tp->stats.tx_bytes += len; | |
2288 | tp->stats.tx_packets++; | |
2289 | ||
2290 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); | |
2291 | ||
2292 | if (status & LastFrag) { | |
2293 | dev_kfree_skb_irq(tx_skb->skb); | |
2294 | tx_skb->skb = NULL; | |
2295 | } | |
2296 | dirty_tx++; | |
2297 | tx_left--; | |
2298 | } | |
2299 | ||
2300 | if (tp->dirty_tx != dirty_tx) { | |
2301 | tp->dirty_tx = dirty_tx; | |
2302 | smp_wmb(); | |
2303 | if (netif_queue_stopped(dev) && | |
2304 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { | |
2305 | netif_wake_queue(dev); | |
2306 | } | |
2307 | } | |
2308 | } | |
2309 | ||
126fa4b9 FR |
2310 | static inline int rtl8169_fragmented_frame(u32 status) |
2311 | { | |
2312 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); | |
2313 | } | |
2314 | ||
1da177e4 LT |
2315 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
2316 | { | |
2317 | u32 opts1 = le32_to_cpu(desc->opts1); | |
2318 | u32 status = opts1 & RxProtoMask; | |
2319 | ||
2320 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || | |
2321 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || | |
2322 | ((status == RxProtoIP) && !(opts1 & IPFail))) | |
2323 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2324 | else | |
2325 | skb->ip_summed = CHECKSUM_NONE; | |
2326 | } | |
2327 | ||
2328 | static inline int rtl8169_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, | |
2329 | struct RxDesc *desc, int rx_buf_sz) | |
2330 | { | |
2331 | int ret = -1; | |
2332 | ||
2333 | if (pkt_size < rx_copybreak) { | |
2334 | struct sk_buff *skb; | |
2335 | ||
2336 | skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); | |
2337 | if (skb) { | |
2338 | skb_reserve(skb, NET_IP_ALIGN); | |
2339 | eth_copy_and_sum(skb, sk_buff[0]->tail, pkt_size, 0); | |
2340 | *sk_buff = skb; | |
2341 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
2342 | ret = 0; | |
2343 | } | |
2344 | } | |
2345 | return ret; | |
2346 | } | |
2347 | ||
2348 | static int | |
2349 | rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp, | |
2350 | void __iomem *ioaddr) | |
2351 | { | |
2352 | unsigned int cur_rx, rx_left; | |
2353 | unsigned int delta, count; | |
2354 | ||
2355 | assert(dev != NULL); | |
2356 | assert(tp != NULL); | |
2357 | assert(ioaddr != NULL); | |
2358 | ||
2359 | cur_rx = tp->cur_rx; | |
2360 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
2361 | rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota); | |
2362 | ||
2363 | while (rx_left > 0) { | |
2364 | unsigned int entry = cur_rx % NUM_RX_DESC; | |
126fa4b9 | 2365 | struct RxDesc *desc = tp->RxDescArray + entry; |
1da177e4 LT |
2366 | u32 status; |
2367 | ||
2368 | rmb(); | |
126fa4b9 | 2369 | status = le32_to_cpu(desc->opts1); |
1da177e4 LT |
2370 | |
2371 | if (status & DescOwn) | |
2372 | break; | |
2373 | if (status & RxRES) { | |
b57b7e5a SH |
2374 | if (netif_msg_rx_err(tp)) { |
2375 | printk(KERN_INFO | |
2376 | "%s: Rx ERROR. status = %08x\n", | |
2377 | dev->name, status); | |
2378 | } | |
1da177e4 LT |
2379 | tp->stats.rx_errors++; |
2380 | if (status & (RxRWT | RxRUNT)) | |
2381 | tp->stats.rx_length_errors++; | |
2382 | if (status & RxCRC) | |
2383 | tp->stats.rx_crc_errors++; | |
126fa4b9 | 2384 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
1da177e4 | 2385 | } else { |
1da177e4 LT |
2386 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
2387 | int pkt_size = (status & 0x00001FFF) - 4; | |
2388 | void (*pci_action)(struct pci_dev *, dma_addr_t, | |
2389 | size_t, int) = pci_dma_sync_single_for_device; | |
2390 | ||
126fa4b9 FR |
2391 | /* |
2392 | * The driver does not support incoming fragmented | |
2393 | * frames. They are seen as a symptom of over-mtu | |
2394 | * sized frames. | |
2395 | */ | |
2396 | if (unlikely(rtl8169_fragmented_frame(status))) { | |
2397 | tp->stats.rx_dropped++; | |
2398 | tp->stats.rx_length_errors++; | |
2399 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
2400 | goto move_on; | |
2401 | } | |
2402 | ||
1da177e4 LT |
2403 | rtl8169_rx_csum(skb, desc); |
2404 | ||
2405 | pci_dma_sync_single_for_cpu(tp->pci_dev, | |
2406 | le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
2407 | PCI_DMA_FROMDEVICE); | |
2408 | ||
2409 | if (rtl8169_try_rx_copy(&skb, pkt_size, desc, | |
2410 | tp->rx_buf_sz)) { | |
2411 | pci_action = pci_unmap_single; | |
2412 | tp->Rx_skbuff[entry] = NULL; | |
2413 | } | |
2414 | ||
2415 | pci_action(tp->pci_dev, le64_to_cpu(desc->addr), | |
2416 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
2417 | ||
2418 | skb->dev = dev; | |
2419 | skb_put(skb, pkt_size); | |
2420 | skb->protocol = eth_type_trans(skb, dev); | |
2421 | ||
2422 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) | |
2423 | rtl8169_rx_skb(skb); | |
2424 | ||
2425 | dev->last_rx = jiffies; | |
2426 | tp->stats.rx_bytes += pkt_size; | |
2427 | tp->stats.rx_packets++; | |
2428 | } | |
126fa4b9 | 2429 | move_on: |
1da177e4 LT |
2430 | cur_rx++; |
2431 | rx_left--; | |
2432 | } | |
2433 | ||
2434 | count = cur_rx - tp->cur_rx; | |
2435 | tp->cur_rx = cur_rx; | |
2436 | ||
2437 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
b57b7e5a | 2438 | if (!delta && count && netif_msg_intr(tp)) |
1da177e4 LT |
2439 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
2440 | tp->dirty_rx += delta; | |
2441 | ||
2442 | /* | |
2443 | * FIXME: until there is periodic timer to try and refill the ring, | |
2444 | * a temporary shortage may definitely kill the Rx process. | |
2445 | * - disable the asic to try and avoid an overflow and kick it again | |
2446 | * after refill ? | |
2447 | * - how do others driver handle this condition (Uh oh...). | |
2448 | */ | |
b57b7e5a | 2449 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
1da177e4 LT |
2450 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
2451 | ||
2452 | return count; | |
2453 | } | |
2454 | ||
2455 | /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ | |
2456 | static irqreturn_t | |
2457 | rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs) | |
2458 | { | |
2459 | struct net_device *dev = (struct net_device *) dev_instance; | |
2460 | struct rtl8169_private *tp = netdev_priv(dev); | |
2461 | int boguscnt = max_interrupt_work; | |
2462 | void __iomem *ioaddr = tp->mmio_addr; | |
2463 | int status; | |
2464 | int handled = 0; | |
2465 | ||
2466 | do { | |
2467 | status = RTL_R16(IntrStatus); | |
2468 | ||
2469 | /* hotplug/major error/no more work/shared irq */ | |
2470 | if ((status == 0xFFFF) || !status) | |
2471 | break; | |
2472 | ||
2473 | handled = 1; | |
2474 | ||
2475 | if (unlikely(!netif_running(dev))) { | |
2476 | rtl8169_asic_down(ioaddr); | |
2477 | goto out; | |
2478 | } | |
2479 | ||
2480 | status &= tp->intr_mask; | |
2481 | RTL_W16(IntrStatus, | |
2482 | (status & RxFIFOOver) ? (status | RxOverflow) : status); | |
2483 | ||
2484 | if (!(status & rtl8169_intr_mask)) | |
2485 | break; | |
2486 | ||
2487 | if (unlikely(status & SYSErr)) { | |
2488 | rtl8169_pcierr_interrupt(dev); | |
2489 | break; | |
2490 | } | |
2491 | ||
2492 | if (status & LinkChg) | |
2493 | rtl8169_check_link_status(dev, tp, ioaddr); | |
2494 | ||
2495 | #ifdef CONFIG_R8169_NAPI | |
2496 | RTL_W16(IntrMask, rtl8169_intr_mask & ~rtl8169_napi_event); | |
2497 | tp->intr_mask = ~rtl8169_napi_event; | |
2498 | ||
2499 | if (likely(netif_rx_schedule_prep(dev))) | |
2500 | __netif_rx_schedule(dev); | |
b57b7e5a | 2501 | else if (netif_msg_intr(tp)) { |
1da177e4 LT |
2502 | printk(KERN_INFO "%s: interrupt %04x taken in poll\n", |
2503 | dev->name, status); | |
2504 | } | |
2505 | break; | |
2506 | #else | |
2507 | /* Rx interrupt */ | |
2508 | if (status & (RxOK | RxOverflow | RxFIFOOver)) { | |
2509 | rtl8169_rx_interrupt(dev, tp, ioaddr); | |
2510 | } | |
2511 | /* Tx interrupt */ | |
2512 | if (status & (TxOK | TxErr)) | |
2513 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2514 | #endif | |
2515 | ||
2516 | boguscnt--; | |
2517 | } while (boguscnt > 0); | |
2518 | ||
2519 | if (boguscnt <= 0) { | |
b57b7e5a SH |
2520 | if (net_ratelimit() && netif_msg_intr(tp)) { |
2521 | printk(KERN_WARNING | |
2522 | "%s: Too much work at interrupt!\n", dev->name); | |
2523 | } | |
1da177e4 LT |
2524 | /* Clear all interrupt sources. */ |
2525 | RTL_W16(IntrStatus, 0xffff); | |
2526 | } | |
2527 | out: | |
2528 | return IRQ_RETVAL(handled); | |
2529 | } | |
2530 | ||
2531 | #ifdef CONFIG_R8169_NAPI | |
2532 | static int rtl8169_poll(struct net_device *dev, int *budget) | |
2533 | { | |
2534 | unsigned int work_done, work_to_do = min(*budget, dev->quota); | |
2535 | struct rtl8169_private *tp = netdev_priv(dev); | |
2536 | void __iomem *ioaddr = tp->mmio_addr; | |
2537 | ||
2538 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr); | |
2539 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2540 | ||
2541 | *budget -= work_done; | |
2542 | dev->quota -= work_done; | |
2543 | ||
2544 | if (work_done < work_to_do) { | |
2545 | netif_rx_complete(dev); | |
2546 | tp->intr_mask = 0xffff; | |
2547 | /* | |
2548 | * 20040426: the barrier is not strictly required but the | |
2549 | * behavior of the irq handler could be less predictable | |
2550 | * without it. Btw, the lack of flush for the posted pci | |
2551 | * write is safe - FR | |
2552 | */ | |
2553 | smp_wmb(); | |
2554 | RTL_W16(IntrMask, rtl8169_intr_mask); | |
2555 | } | |
2556 | ||
2557 | return (work_done >= work_to_do); | |
2558 | } | |
2559 | #endif | |
2560 | ||
2561 | static void rtl8169_down(struct net_device *dev) | |
2562 | { | |
2563 | struct rtl8169_private *tp = netdev_priv(dev); | |
2564 | void __iomem *ioaddr = tp->mmio_addr; | |
2565 | unsigned int poll_locked = 0; | |
2566 | ||
2567 | rtl8169_delete_timer(dev); | |
2568 | ||
2569 | netif_stop_queue(dev); | |
2570 | ||
2571 | flush_scheduled_work(); | |
2572 | ||
2573 | core_down: | |
2574 | spin_lock_irq(&tp->lock); | |
2575 | ||
2576 | rtl8169_asic_down(ioaddr); | |
2577 | ||
2578 | /* Update the error counts. */ | |
2579 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2580 | RTL_W32(RxMissed, 0); | |
2581 | ||
2582 | spin_unlock_irq(&tp->lock); | |
2583 | ||
2584 | synchronize_irq(dev->irq); | |
2585 | ||
2586 | if (!poll_locked) { | |
2587 | netif_poll_disable(dev); | |
2588 | poll_locked++; | |
2589 | } | |
2590 | ||
2591 | /* Give a racing hard_start_xmit a few cycles to complete. */ | |
fbd568a3 | 2592 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
1da177e4 LT |
2593 | |
2594 | /* | |
2595 | * And now for the 50k$ question: are IRQ disabled or not ? | |
2596 | * | |
2597 | * Two paths lead here: | |
2598 | * 1) dev->close | |
2599 | * -> netif_running() is available to sync the current code and the | |
2600 | * IRQ handler. See rtl8169_interrupt for details. | |
2601 | * 2) dev->change_mtu | |
2602 | * -> rtl8169_poll can not be issued again and re-enable the | |
2603 | * interruptions. Let's simply issue the IRQ down sequence again. | |
2604 | */ | |
2605 | if (RTL_R16(IntrMask)) | |
2606 | goto core_down; | |
2607 | ||
2608 | rtl8169_tx_clear(tp); | |
2609 | ||
2610 | rtl8169_rx_clear(tp); | |
2611 | } | |
2612 | ||
2613 | static int rtl8169_close(struct net_device *dev) | |
2614 | { | |
2615 | struct rtl8169_private *tp = netdev_priv(dev); | |
2616 | struct pci_dev *pdev = tp->pci_dev; | |
2617 | ||
2618 | rtl8169_down(dev); | |
2619 | ||
2620 | free_irq(dev->irq, dev); | |
2621 | ||
2622 | netif_poll_enable(dev); | |
2623 | ||
2624 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, | |
2625 | tp->RxPhyAddr); | |
2626 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
2627 | tp->TxPhyAddr); | |
2628 | tp->TxDescArray = NULL; | |
2629 | tp->RxDescArray = NULL; | |
2630 | ||
2631 | return 0; | |
2632 | } | |
2633 | ||
2634 | static void | |
2635 | rtl8169_set_rx_mode(struct net_device *dev) | |
2636 | { | |
2637 | struct rtl8169_private *tp = netdev_priv(dev); | |
2638 | void __iomem *ioaddr = tp->mmio_addr; | |
2639 | unsigned long flags; | |
2640 | u32 mc_filter[2]; /* Multicast hash filter */ | |
2641 | int i, rx_mode; | |
2642 | u32 tmp = 0; | |
2643 | ||
2644 | if (dev->flags & IFF_PROMISC) { | |
2645 | /* Unconditionally log net taps. */ | |
b57b7e5a SH |
2646 | if (netif_msg_link(tp)) { |
2647 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
2648 | dev->name); | |
2649 | } | |
1da177e4 LT |
2650 | rx_mode = |
2651 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
2652 | AcceptAllPhys; | |
2653 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2654 | } else if ((dev->mc_count > multicast_filter_limit) | |
2655 | || (dev->flags & IFF_ALLMULTI)) { | |
2656 | /* Too many to filter perfectly -- accept all multicasts. */ | |
2657 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
2658 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2659 | } else { | |
2660 | struct dev_mc_list *mclist; | |
2661 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
2662 | mc_filter[1] = mc_filter[0] = 0; | |
2663 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2664 | i++, mclist = mclist->next) { | |
2665 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
2666 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
2667 | rx_mode |= AcceptMulticast; | |
2668 | } | |
2669 | } | |
2670 | ||
2671 | spin_lock_irqsave(&tp->lock, flags); | |
2672 | ||
2673 | tmp = rtl8169_rx_config | rx_mode | | |
2674 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
2675 | ||
2676 | RTL_W32(RxConfig, tmp); | |
2677 | RTL_W32(MAR0 + 0, mc_filter[0]); | |
2678 | RTL_W32(MAR0 + 4, mc_filter[1]); | |
2679 | ||
2680 | spin_unlock_irqrestore(&tp->lock, flags); | |
2681 | } | |
2682 | ||
2683 | /** | |
2684 | * rtl8169_get_stats - Get rtl8169 read/write statistics | |
2685 | * @dev: The Ethernet Device to get statistics for | |
2686 | * | |
2687 | * Get TX/RX statistics for rtl8169 | |
2688 | */ | |
2689 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) | |
2690 | { | |
2691 | struct rtl8169_private *tp = netdev_priv(dev); | |
2692 | void __iomem *ioaddr = tp->mmio_addr; | |
2693 | unsigned long flags; | |
2694 | ||
2695 | if (netif_running(dev)) { | |
2696 | spin_lock_irqsave(&tp->lock, flags); | |
2697 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2698 | RTL_W32(RxMissed, 0); | |
2699 | spin_unlock_irqrestore(&tp->lock, flags); | |
2700 | } | |
2701 | ||
2702 | return &tp->stats; | |
2703 | } | |
2704 | ||
2705 | static struct pci_driver rtl8169_pci_driver = { | |
2706 | .name = MODULENAME, | |
2707 | .id_table = rtl8169_pci_tbl, | |
2708 | .probe = rtl8169_init_one, | |
2709 | .remove = __devexit_p(rtl8169_remove_one), | |
2710 | #ifdef CONFIG_PM | |
2711 | .suspend = rtl8169_suspend, | |
2712 | .resume = rtl8169_resume, | |
2713 | #endif | |
2714 | }; | |
2715 | ||
2716 | static int __init | |
2717 | rtl8169_init_module(void) | |
2718 | { | |
2719 | return pci_module_init(&rtl8169_pci_driver); | |
2720 | } | |
2721 | ||
2722 | static void __exit | |
2723 | rtl8169_cleanup_module(void) | |
2724 | { | |
2725 | pci_unregister_driver(&rtl8169_pci_driver); | |
2726 | } | |
2727 | ||
2728 | module_init(rtl8169_init_module); | |
2729 | module_exit(rtl8169_cleanup_module); |