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Commit | Line | Data |
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1da177e4 | 1 | /* |
07d3f51f FR |
2 | * r8169.c: RealTek 8169/8168/8101 ethernet driver. |
3 | * | |
4 | * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw> | |
5 | * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com> | |
6 | * Copyright (c) a lot of people too. Please respect their work. | |
7 | * | |
8 | * See MAINTAINERS file for support contact information. | |
1da177e4 LT |
9 | */ |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/moduleparam.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/netdevice.h> | |
15 | #include <linux/etherdevice.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/ethtool.h> | |
18 | #include <linux/mii.h> | |
19 | #include <linux/if_vlan.h> | |
20 | #include <linux/crc32.h> | |
21 | #include <linux/in.h> | |
22 | #include <linux/ip.h> | |
23 | #include <linux/tcp.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/dma-mapping.h> | |
26 | ||
99f252b0 | 27 | #include <asm/system.h> |
1da177e4 LT |
28 | #include <asm/io.h> |
29 | #include <asm/irq.h> | |
30 | ||
f7ccf420 SH |
31 | #ifdef CONFIG_R8169_NAPI |
32 | #define NAPI_SUFFIX "-NAPI" | |
33 | #else | |
34 | #define NAPI_SUFFIX "" | |
35 | #endif | |
36 | ||
37 | #define RTL8169_VERSION "2.2LK" NAPI_SUFFIX | |
1da177e4 LT |
38 | #define MODULENAME "r8169" |
39 | #define PFX MODULENAME ": " | |
40 | ||
41 | #ifdef RTL8169_DEBUG | |
42 | #define assert(expr) \ | |
5b0384f4 FR |
43 | if (!(expr)) { \ |
44 | printk( "Assertion failed! %s,%s,%s,line=%d\n", \ | |
45 | #expr,__FILE__,__FUNCTION__,__LINE__); \ | |
46 | } | |
1da177e4 LT |
47 | #define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0) |
48 | #else | |
49 | #define assert(expr) do {} while (0) | |
50 | #define dprintk(fmt, args...) do {} while (0) | |
51 | #endif /* RTL8169_DEBUG */ | |
52 | ||
b57b7e5a | 53 | #define R8169_MSG_DEFAULT \ |
f0e837d9 | 54 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) |
b57b7e5a | 55 | |
1da177e4 LT |
56 | #define TX_BUFFS_AVAIL(tp) \ |
57 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) | |
58 | ||
59 | #ifdef CONFIG_R8169_NAPI | |
60 | #define rtl8169_rx_skb netif_receive_skb | |
0b50f81d | 61 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb |
1da177e4 LT |
62 | #define rtl8169_rx_quota(count, quota) min(count, quota) |
63 | #else | |
64 | #define rtl8169_rx_skb netif_rx | |
0b50f81d | 65 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx |
1da177e4 LT |
66 | #define rtl8169_rx_quota(count, quota) count |
67 | #endif | |
68 | ||
1da177e4 | 69 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
f71e1309 | 70 | static const int max_interrupt_work = 20; |
1da177e4 LT |
71 | |
72 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
73 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
f71e1309 | 74 | static const int multicast_filter_limit = 32; |
1da177e4 LT |
75 | |
76 | /* MAC address length */ | |
77 | #define MAC_ADDR_LEN 6 | |
78 | ||
79 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ | |
80 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
81 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
07d3f51f | 82 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ |
1da177e4 LT |
83 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ |
84 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ | |
85 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ | |
86 | ||
87 | #define R8169_REGS_SIZE 256 | |
88 | #define R8169_NAPI_WEIGHT 64 | |
89 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ | |
90 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ | |
91 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ | |
92 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | |
93 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
94 | ||
95 | #define RTL8169_TX_TIMEOUT (6*HZ) | |
96 | #define RTL8169_PHY_TIMEOUT (10*HZ) | |
97 | ||
98 | /* write/read MMIO register */ | |
99 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) | |
100 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) | |
101 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) | |
102 | #define RTL_R8(reg) readb (ioaddr + (reg)) | |
103 | #define RTL_R16(reg) readw (ioaddr + (reg)) | |
104 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) | |
105 | ||
106 | enum mac_version { | |
ba6eb6ee FR |
107 | RTL_GIGA_MAC_VER_01 = 0x01, // 8169 |
108 | RTL_GIGA_MAC_VER_02 = 0x02, // 8169S | |
109 | RTL_GIGA_MAC_VER_03 = 0x03, // 8110S | |
110 | RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB | |
111 | RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd | |
6dccd16b | 112 | RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe |
2dd99530 FR |
113 | RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb |
114 | RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be 8168Bf | |
cdf1a608 FR |
115 | RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb 8101Ec |
116 | RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 | |
117 | RTL_GIGA_MAC_VER_15 = 0x0f // 8101 | |
1da177e4 LT |
118 | }; |
119 | ||
120 | enum phy_version { | |
121 | RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
122 | RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
123 | RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
124 | RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ | |
125 | RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ | |
126 | RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ | |
127 | }; | |
128 | ||
1da177e4 LT |
129 | #define _R(NAME,MAC,MASK) \ |
130 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } | |
131 | ||
3c6bee1d | 132 | static const struct { |
1da177e4 LT |
133 | const char *name; |
134 | u8 mac_version; | |
135 | u32 RxConfigMask; /* Clears the bits supported by this chip */ | |
136 | } rtl_chip_info[] = { | |
ba6eb6ee FR |
137 | _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169 |
138 | _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S | |
139 | _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S | |
140 | _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB | |
141 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd | |
6dccd16b | 142 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe |
bcf0bf90 FR |
143 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E |
144 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E | |
145 | _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 | |
146 | _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 | |
147 | _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880) // PCI-E 8139 | |
1da177e4 LT |
148 | }; |
149 | #undef _R | |
150 | ||
bcf0bf90 FR |
151 | enum cfg_version { |
152 | RTL_CFG_0 = 0x00, | |
153 | RTL_CFG_1, | |
154 | RTL_CFG_2 | |
155 | }; | |
156 | ||
07ce4064 FR |
157 | static void rtl_hw_start_8169(struct net_device *); |
158 | static void rtl_hw_start_8168(struct net_device *); | |
159 | static void rtl_hw_start_8101(struct net_device *); | |
160 | ||
1da177e4 | 161 | static struct pci_device_id rtl8169_pci_tbl[] = { |
bcf0bf90 | 162 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, |
d2eed8cf | 163 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, |
d81bf551 | 164 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, |
07ce4064 | 165 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, |
bcf0bf90 FR |
166 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, |
167 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, | |
73f5e28b | 168 | { PCI_DEVICE(0x1259, 0xc107), 0, 0, RTL_CFG_0 }, |
bcf0bf90 FR |
169 | { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, |
170 | { PCI_VENDOR_ID_LINKSYS, 0x1032, | |
171 | PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, | |
1da177e4 LT |
172 | {0,}, |
173 | }; | |
174 | ||
175 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); | |
176 | ||
177 | static int rx_copybreak = 200; | |
178 | static int use_dac; | |
b57b7e5a SH |
179 | static struct { |
180 | u32 msg_enable; | |
181 | } debug = { -1 }; | |
1da177e4 | 182 | |
07d3f51f FR |
183 | enum rtl_registers { |
184 | MAC0 = 0, /* Ethernet hardware address. */ | |
773d2021 | 185 | MAC4 = 4, |
07d3f51f FR |
186 | MAR0 = 8, /* Multicast filter. */ |
187 | CounterAddrLow = 0x10, | |
188 | CounterAddrHigh = 0x14, | |
189 | TxDescStartAddrLow = 0x20, | |
190 | TxDescStartAddrHigh = 0x24, | |
191 | TxHDescStartAddrLow = 0x28, | |
192 | TxHDescStartAddrHigh = 0x2c, | |
193 | FLASH = 0x30, | |
194 | ERSR = 0x36, | |
195 | ChipCmd = 0x37, | |
196 | TxPoll = 0x38, | |
197 | IntrMask = 0x3c, | |
198 | IntrStatus = 0x3e, | |
199 | TxConfig = 0x40, | |
200 | RxConfig = 0x44, | |
201 | RxMissed = 0x4c, | |
202 | Cfg9346 = 0x50, | |
203 | Config0 = 0x51, | |
204 | Config1 = 0x52, | |
205 | Config2 = 0x53, | |
206 | Config3 = 0x54, | |
207 | Config4 = 0x55, | |
208 | Config5 = 0x56, | |
209 | MultiIntr = 0x5c, | |
210 | PHYAR = 0x60, | |
211 | TBICSR = 0x64, | |
212 | TBI_ANAR = 0x68, | |
213 | TBI_LPAR = 0x6a, | |
214 | PHYstatus = 0x6c, | |
215 | RxMaxSize = 0xda, | |
216 | CPlusCmd = 0xe0, | |
217 | IntrMitigate = 0xe2, | |
218 | RxDescAddrLow = 0xe4, | |
219 | RxDescAddrHigh = 0xe8, | |
220 | EarlyTxThres = 0xec, | |
221 | FuncEvent = 0xf0, | |
222 | FuncEventMask = 0xf4, | |
223 | FuncPresetState = 0xf8, | |
224 | FuncForceEvent = 0xfc, | |
1da177e4 LT |
225 | }; |
226 | ||
07d3f51f | 227 | enum rtl_register_content { |
1da177e4 | 228 | /* InterruptStatusBits */ |
07d3f51f FR |
229 | SYSErr = 0x8000, |
230 | PCSTimeout = 0x4000, | |
231 | SWInt = 0x0100, | |
232 | TxDescUnavail = 0x0080, | |
233 | RxFIFOOver = 0x0040, | |
234 | LinkChg = 0x0020, | |
235 | RxOverflow = 0x0010, | |
236 | TxErr = 0x0008, | |
237 | TxOK = 0x0004, | |
238 | RxErr = 0x0002, | |
239 | RxOK = 0x0001, | |
1da177e4 LT |
240 | |
241 | /* RxStatusDesc */ | |
9dccf611 FR |
242 | RxFOVF = (1 << 23), |
243 | RxRWT = (1 << 22), | |
244 | RxRES = (1 << 21), | |
245 | RxRUNT = (1 << 20), | |
246 | RxCRC = (1 << 19), | |
1da177e4 LT |
247 | |
248 | /* ChipCmdBits */ | |
07d3f51f FR |
249 | CmdReset = 0x10, |
250 | CmdRxEnb = 0x08, | |
251 | CmdTxEnb = 0x04, | |
252 | RxBufEmpty = 0x01, | |
1da177e4 | 253 | |
275391a4 FR |
254 | /* TXPoll register p.5 */ |
255 | HPQ = 0x80, /* Poll cmd on the high prio queue */ | |
256 | NPQ = 0x40, /* Poll cmd on the low prio queue */ | |
257 | FSWInt = 0x01, /* Forced software interrupt */ | |
258 | ||
1da177e4 | 259 | /* Cfg9346Bits */ |
07d3f51f FR |
260 | Cfg9346_Lock = 0x00, |
261 | Cfg9346_Unlock = 0xc0, | |
1da177e4 LT |
262 | |
263 | /* rx_mode_bits */ | |
07d3f51f FR |
264 | AcceptErr = 0x20, |
265 | AcceptRunt = 0x10, | |
266 | AcceptBroadcast = 0x08, | |
267 | AcceptMulticast = 0x04, | |
268 | AcceptMyPhys = 0x02, | |
269 | AcceptAllPhys = 0x01, | |
1da177e4 LT |
270 | |
271 | /* RxConfigBits */ | |
07d3f51f FR |
272 | RxCfgFIFOShift = 13, |
273 | RxCfgDMAShift = 8, | |
1da177e4 LT |
274 | |
275 | /* TxConfigBits */ | |
276 | TxInterFrameGapShift = 24, | |
277 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
278 | ||
5d06a99f FR |
279 | /* Config1 register p.24 */ |
280 | PMEnable = (1 << 0), /* Power Management Enable */ | |
281 | ||
6dccd16b FR |
282 | /* Config2 register p. 25 */ |
283 | PCI_Clock_66MHz = 0x01, | |
284 | PCI_Clock_33MHz = 0x00, | |
285 | ||
61a4dcc2 FR |
286 | /* Config3 register p.25 */ |
287 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
288 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
289 | ||
5d06a99f | 290 | /* Config5 register p.27 */ |
61a4dcc2 FR |
291 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ |
292 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
293 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
294 | LanWake = (1 << 1), /* LanWake enable/disable */ | |
5d06a99f FR |
295 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ |
296 | ||
1da177e4 LT |
297 | /* TBICSR p.28 */ |
298 | TBIReset = 0x80000000, | |
299 | TBILoopback = 0x40000000, | |
300 | TBINwEnable = 0x20000000, | |
301 | TBINwRestart = 0x10000000, | |
302 | TBILinkOk = 0x02000000, | |
303 | TBINwComplete = 0x01000000, | |
304 | ||
305 | /* CPlusCmd p.31 */ | |
0e485150 | 306 | PktCntrDisable = (1 << 7), // 8168 |
1da177e4 LT |
307 | RxVlan = (1 << 6), |
308 | RxChkSum = (1 << 5), | |
309 | PCIDAC = (1 << 4), | |
310 | PCIMulRW = (1 << 3), | |
0e485150 FR |
311 | INTT_0 = 0x0000, // 8168 |
312 | INTT_1 = 0x0001, // 8168 | |
313 | INTT_2 = 0x0002, // 8168 | |
314 | INTT_3 = 0x0003, // 8168 | |
1da177e4 LT |
315 | |
316 | /* rtl8169_PHYstatus */ | |
07d3f51f FR |
317 | TBI_Enable = 0x80, |
318 | TxFlowCtrl = 0x40, | |
319 | RxFlowCtrl = 0x20, | |
320 | _1000bpsF = 0x10, | |
321 | _100bps = 0x08, | |
322 | _10bps = 0x04, | |
323 | LinkStatus = 0x02, | |
324 | FullDup = 0x01, | |
1da177e4 | 325 | |
1da177e4 | 326 | /* _TBICSRBit */ |
07d3f51f | 327 | TBILinkOK = 0x02000000, |
d4a3a0fc SH |
328 | |
329 | /* DumpCounterCommand */ | |
07d3f51f | 330 | CounterDump = 0x8, |
1da177e4 LT |
331 | }; |
332 | ||
07d3f51f | 333 | enum desc_status_bit { |
1da177e4 LT |
334 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ |
335 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
336 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
337 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
338 | ||
339 | /* Tx private */ | |
340 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ | |
341 | MSSShift = 16, /* MSS value position */ | |
342 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ | |
343 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
344 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
345 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
346 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
347 | ||
348 | /* Rx private */ | |
349 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ | |
350 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ | |
351 | ||
352 | #define RxProtoUDP (PID1) | |
353 | #define RxProtoTCP (PID0) | |
354 | #define RxProtoIP (PID1 | PID0) | |
355 | #define RxProtoMask RxProtoIP | |
356 | ||
357 | IPFail = (1 << 16), /* IP checksum failed */ | |
358 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ | |
359 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ | |
360 | RxVlanTag = (1 << 16), /* VLAN tag available */ | |
361 | }; | |
362 | ||
363 | #define RsvdMask 0x3fffc000 | |
364 | ||
365 | struct TxDesc { | |
6cccd6e7 REB |
366 | __le32 opts1; |
367 | __le32 opts2; | |
368 | __le64 addr; | |
1da177e4 LT |
369 | }; |
370 | ||
371 | struct RxDesc { | |
6cccd6e7 REB |
372 | __le32 opts1; |
373 | __le32 opts2; | |
374 | __le64 addr; | |
1da177e4 LT |
375 | }; |
376 | ||
377 | struct ring_info { | |
378 | struct sk_buff *skb; | |
379 | u32 len; | |
380 | u8 __pad[sizeof(void *) - sizeof(u32)]; | |
381 | }; | |
382 | ||
383 | struct rtl8169_private { | |
384 | void __iomem *mmio_addr; /* memory map physical address */ | |
385 | struct pci_dev *pci_dev; /* Index of PCI device */ | |
c4028958 | 386 | struct net_device *dev; |
bea3348e | 387 | struct napi_struct napi; |
1da177e4 LT |
388 | struct net_device_stats stats; /* statistics of net device */ |
389 | spinlock_t lock; /* spin lock flag */ | |
b57b7e5a | 390 | u32 msg_enable; |
1da177e4 LT |
391 | int chipset; |
392 | int mac_version; | |
393 | int phy_version; | |
394 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ | |
395 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ | |
396 | u32 dirty_rx; | |
397 | u32 dirty_tx; | |
398 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ | |
399 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ | |
400 | dma_addr_t TxPhyAddr; | |
401 | dma_addr_t RxPhyAddr; | |
402 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ | |
403 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ | |
bcf0bf90 | 404 | unsigned align; |
1da177e4 LT |
405 | unsigned rx_buf_sz; |
406 | struct timer_list timer; | |
407 | u16 cp_cmd; | |
0e485150 FR |
408 | u16 intr_event; |
409 | u16 napi_event; | |
1da177e4 LT |
410 | u16 intr_mask; |
411 | int phy_auto_nego_reg; | |
412 | int phy_1000_ctrl_reg; | |
413 | #ifdef CONFIG_R8169_VLAN | |
414 | struct vlan_group *vlgrp; | |
415 | #endif | |
416 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); | |
417 | void (*get_settings)(struct net_device *, struct ethtool_cmd *); | |
418 | void (*phy_reset_enable)(void __iomem *); | |
07ce4064 | 419 | void (*hw_start)(struct net_device *); |
1da177e4 LT |
420 | unsigned int (*phy_reset_pending)(void __iomem *); |
421 | unsigned int (*link_ok)(void __iomem *); | |
c4028958 | 422 | struct delayed_work task; |
61a4dcc2 | 423 | unsigned wol_enabled : 1; |
1da177e4 LT |
424 | }; |
425 | ||
979b6c13 | 426 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
1da177e4 | 427 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
1da177e4 | 428 | module_param(rx_copybreak, int, 0); |
1b7efd58 | 429 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
1da177e4 LT |
430 | module_param(use_dac, int, 0); |
431 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); | |
b57b7e5a SH |
432 | module_param_named(debug, debug.msg_enable, int, 0); |
433 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
1da177e4 LT |
434 | MODULE_LICENSE("GPL"); |
435 | MODULE_VERSION(RTL8169_VERSION); | |
436 | ||
437 | static int rtl8169_open(struct net_device *dev); | |
438 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 439 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance); |
1da177e4 | 440 | static int rtl8169_init_ring(struct net_device *dev); |
07ce4064 | 441 | static void rtl_hw_start(struct net_device *dev); |
1da177e4 | 442 | static int rtl8169_close(struct net_device *dev); |
07ce4064 | 443 | static void rtl_set_rx_mode(struct net_device *dev); |
1da177e4 | 444 | static void rtl8169_tx_timeout(struct net_device *dev); |
4dcb7d33 | 445 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); |
1da177e4 | 446 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, |
bea3348e | 447 | void __iomem *, u32 budget); |
4dcb7d33 | 448 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
1da177e4 | 449 | static void rtl8169_down(struct net_device *dev); |
99f252b0 | 450 | static void rtl8169_rx_clear(struct rtl8169_private *tp); |
1da177e4 LT |
451 | |
452 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 453 | static int rtl8169_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
454 | #endif |
455 | ||
1da177e4 | 456 | static const unsigned int rtl8169_rx_config = |
5b0384f4 | 457 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
1da177e4 | 458 | |
07d3f51f | 459 | static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) |
1da177e4 LT |
460 | { |
461 | int i; | |
462 | ||
07d3f51f | 463 | RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0xFF) << 16 | value); |
1da177e4 | 464 | |
2371408c | 465 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
466 | /* |
467 | * Check if the RTL8169 has completed writing to the specified | |
468 | * MII register. | |
469 | */ | |
5b0384f4 | 470 | if (!(RTL_R32(PHYAR) & 0x80000000)) |
1da177e4 | 471 | break; |
2371408c | 472 | udelay(25); |
1da177e4 LT |
473 | } |
474 | } | |
475 | ||
07d3f51f | 476 | static int mdio_read(void __iomem *ioaddr, int reg_addr) |
1da177e4 LT |
477 | { |
478 | int i, value = -1; | |
479 | ||
07d3f51f | 480 | RTL_W32(PHYAR, 0x0 | (reg_addr & 0xFF) << 16); |
1da177e4 | 481 | |
2371408c | 482 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
483 | /* |
484 | * Check if the RTL8169 has completed retrieving data from | |
485 | * the specified MII register. | |
486 | */ | |
1da177e4 LT |
487 | if (RTL_R32(PHYAR) & 0x80000000) { |
488 | value = (int) (RTL_R32(PHYAR) & 0xFFFF); | |
489 | break; | |
490 | } | |
2371408c | 491 | udelay(25); |
1da177e4 LT |
492 | } |
493 | return value; | |
494 | } | |
495 | ||
496 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) | |
497 | { | |
498 | RTL_W16(IntrMask, 0x0000); | |
499 | ||
500 | RTL_W16(IntrStatus, 0xffff); | |
501 | } | |
502 | ||
503 | static void rtl8169_asic_down(void __iomem *ioaddr) | |
504 | { | |
505 | RTL_W8(ChipCmd, 0x00); | |
506 | rtl8169_irq_mask_and_ack(ioaddr); | |
507 | RTL_R16(CPlusCmd); | |
508 | } | |
509 | ||
510 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) | |
511 | { | |
512 | return RTL_R32(TBICSR) & TBIReset; | |
513 | } | |
514 | ||
515 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) | |
516 | { | |
64e4bfb4 | 517 | return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; |
1da177e4 LT |
518 | } |
519 | ||
520 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) | |
521 | { | |
522 | return RTL_R32(TBICSR) & TBILinkOk; | |
523 | } | |
524 | ||
525 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) | |
526 | { | |
527 | return RTL_R8(PHYstatus) & LinkStatus; | |
528 | } | |
529 | ||
530 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) | |
531 | { | |
532 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); | |
533 | } | |
534 | ||
535 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) | |
536 | { | |
537 | unsigned int val; | |
538 | ||
9e0db8ef FR |
539 | val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; |
540 | mdio_write(ioaddr, MII_BMCR, val & 0xffff); | |
1da177e4 LT |
541 | } |
542 | ||
543 | static void rtl8169_check_link_status(struct net_device *dev, | |
07d3f51f FR |
544 | struct rtl8169_private *tp, |
545 | void __iomem *ioaddr) | |
1da177e4 LT |
546 | { |
547 | unsigned long flags; | |
548 | ||
549 | spin_lock_irqsave(&tp->lock, flags); | |
550 | if (tp->link_ok(ioaddr)) { | |
551 | netif_carrier_on(dev); | |
b57b7e5a SH |
552 | if (netif_msg_ifup(tp)) |
553 | printk(KERN_INFO PFX "%s: link up\n", dev->name); | |
554 | } else { | |
555 | if (netif_msg_ifdown(tp)) | |
556 | printk(KERN_INFO PFX "%s: link down\n", dev->name); | |
1da177e4 | 557 | netif_carrier_off(dev); |
b57b7e5a | 558 | } |
1da177e4 LT |
559 | spin_unlock_irqrestore(&tp->lock, flags); |
560 | } | |
561 | ||
61a4dcc2 FR |
562 | static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
563 | { | |
564 | struct rtl8169_private *tp = netdev_priv(dev); | |
565 | void __iomem *ioaddr = tp->mmio_addr; | |
566 | u8 options; | |
567 | ||
568 | wol->wolopts = 0; | |
569 | ||
570 | #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) | |
571 | wol->supported = WAKE_ANY; | |
572 | ||
573 | spin_lock_irq(&tp->lock); | |
574 | ||
575 | options = RTL_R8(Config1); | |
576 | if (!(options & PMEnable)) | |
577 | goto out_unlock; | |
578 | ||
579 | options = RTL_R8(Config3); | |
580 | if (options & LinkUp) | |
581 | wol->wolopts |= WAKE_PHY; | |
582 | if (options & MagicPacket) | |
583 | wol->wolopts |= WAKE_MAGIC; | |
584 | ||
585 | options = RTL_R8(Config5); | |
586 | if (options & UWF) | |
587 | wol->wolopts |= WAKE_UCAST; | |
588 | if (options & BWF) | |
5b0384f4 | 589 | wol->wolopts |= WAKE_BCAST; |
61a4dcc2 | 590 | if (options & MWF) |
5b0384f4 | 591 | wol->wolopts |= WAKE_MCAST; |
61a4dcc2 FR |
592 | |
593 | out_unlock: | |
594 | spin_unlock_irq(&tp->lock); | |
595 | } | |
596 | ||
597 | static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
598 | { | |
599 | struct rtl8169_private *tp = netdev_priv(dev); | |
600 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 601 | unsigned int i; |
61a4dcc2 FR |
602 | static struct { |
603 | u32 opt; | |
604 | u16 reg; | |
605 | u8 mask; | |
606 | } cfg[] = { | |
607 | { WAKE_ANY, Config1, PMEnable }, | |
608 | { WAKE_PHY, Config3, LinkUp }, | |
609 | { WAKE_MAGIC, Config3, MagicPacket }, | |
610 | { WAKE_UCAST, Config5, UWF }, | |
611 | { WAKE_BCAST, Config5, BWF }, | |
612 | { WAKE_MCAST, Config5, MWF }, | |
613 | { WAKE_ANY, Config5, LanWake } | |
614 | }; | |
615 | ||
616 | spin_lock_irq(&tp->lock); | |
617 | ||
618 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
619 | ||
620 | for (i = 0; i < ARRAY_SIZE(cfg); i++) { | |
621 | u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask; | |
622 | if (wol->wolopts & cfg[i].opt) | |
623 | options |= cfg[i].mask; | |
624 | RTL_W8(cfg[i].reg, options); | |
625 | } | |
626 | ||
627 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
628 | ||
629 | tp->wol_enabled = (wol->wolopts) ? 1 : 0; | |
630 | ||
631 | spin_unlock_irq(&tp->lock); | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
1da177e4 LT |
636 | static void rtl8169_get_drvinfo(struct net_device *dev, |
637 | struct ethtool_drvinfo *info) | |
638 | { | |
639 | struct rtl8169_private *tp = netdev_priv(dev); | |
640 | ||
641 | strcpy(info->driver, MODULENAME); | |
642 | strcpy(info->version, RTL8169_VERSION); | |
643 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
644 | } | |
645 | ||
646 | static int rtl8169_get_regs_len(struct net_device *dev) | |
647 | { | |
648 | return R8169_REGS_SIZE; | |
649 | } | |
650 | ||
651 | static int rtl8169_set_speed_tbi(struct net_device *dev, | |
652 | u8 autoneg, u16 speed, u8 duplex) | |
653 | { | |
654 | struct rtl8169_private *tp = netdev_priv(dev); | |
655 | void __iomem *ioaddr = tp->mmio_addr; | |
656 | int ret = 0; | |
657 | u32 reg; | |
658 | ||
659 | reg = RTL_R32(TBICSR); | |
660 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && | |
661 | (duplex == DUPLEX_FULL)) { | |
662 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); | |
663 | } else if (autoneg == AUTONEG_ENABLE) | |
664 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); | |
665 | else { | |
b57b7e5a SH |
666 | if (netif_msg_link(tp)) { |
667 | printk(KERN_WARNING "%s: " | |
668 | "incorrect speed setting refused in TBI mode\n", | |
669 | dev->name); | |
670 | } | |
1da177e4 LT |
671 | ret = -EOPNOTSUPP; |
672 | } | |
673 | ||
674 | return ret; | |
675 | } | |
676 | ||
677 | static int rtl8169_set_speed_xmii(struct net_device *dev, | |
678 | u8 autoneg, u16 speed, u8 duplex) | |
679 | { | |
680 | struct rtl8169_private *tp = netdev_priv(dev); | |
681 | void __iomem *ioaddr = tp->mmio_addr; | |
682 | int auto_nego, giga_ctrl; | |
683 | ||
64e4bfb4 FR |
684 | auto_nego = mdio_read(ioaddr, MII_ADVERTISE); |
685 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | | |
686 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
687 | giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); | |
688 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
1da177e4 LT |
689 | |
690 | if (autoneg == AUTONEG_ENABLE) { | |
64e4bfb4 FR |
691 | auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
692 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
693 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; | |
1da177e4 LT |
694 | } else { |
695 | if (speed == SPEED_10) | |
64e4bfb4 | 696 | auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; |
1da177e4 | 697 | else if (speed == SPEED_100) |
64e4bfb4 | 698 | auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; |
1da177e4 | 699 | else if (speed == SPEED_1000) |
64e4bfb4 | 700 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; |
1da177e4 LT |
701 | |
702 | if (duplex == DUPLEX_HALF) | |
64e4bfb4 | 703 | auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); |
726ecdcf AG |
704 | |
705 | if (duplex == DUPLEX_FULL) | |
64e4bfb4 | 706 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); |
bcf0bf90 FR |
707 | |
708 | /* This tweak comes straight from Realtek's driver. */ | |
709 | if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && | |
710 | (tp->mac_version == RTL_GIGA_MAC_VER_13)) { | |
64e4bfb4 | 711 | auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; |
bcf0bf90 FR |
712 | } |
713 | } | |
714 | ||
715 | /* The 8100e/8101e do Fast Ethernet only. */ | |
716 | if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
717 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
718 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
64e4bfb4 | 719 | if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) && |
bcf0bf90 FR |
720 | netif_msg_link(tp)) { |
721 | printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", | |
722 | dev->name); | |
723 | } | |
64e4bfb4 | 724 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
1da177e4 LT |
725 | } |
726 | ||
623a1593 FR |
727 | auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
728 | ||
2584fbc3 RS |
729 | if (tp->mac_version == RTL_GIGA_MAC_VER_12) { |
730 | /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */ | |
731 | mdio_write(ioaddr, 0x1f, 0x0000); | |
732 | mdio_write(ioaddr, 0x0e, 0x0000); | |
733 | } | |
734 | ||
1da177e4 LT |
735 | tp->phy_auto_nego_reg = auto_nego; |
736 | tp->phy_1000_ctrl_reg = giga_ctrl; | |
737 | ||
64e4bfb4 FR |
738 | mdio_write(ioaddr, MII_ADVERTISE, auto_nego); |
739 | mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); | |
740 | mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); | |
1da177e4 LT |
741 | return 0; |
742 | } | |
743 | ||
744 | static int rtl8169_set_speed(struct net_device *dev, | |
745 | u8 autoneg, u16 speed, u8 duplex) | |
746 | { | |
747 | struct rtl8169_private *tp = netdev_priv(dev); | |
748 | int ret; | |
749 | ||
750 | ret = tp->set_speed(dev, autoneg, speed, duplex); | |
751 | ||
64e4bfb4 | 752 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
753 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); |
754 | ||
755 | return ret; | |
756 | } | |
757 | ||
758 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
759 | { | |
760 | struct rtl8169_private *tp = netdev_priv(dev); | |
761 | unsigned long flags; | |
762 | int ret; | |
763 | ||
764 | spin_lock_irqsave(&tp->lock, flags); | |
765 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); | |
766 | spin_unlock_irqrestore(&tp->lock, flags); | |
5b0384f4 | 767 | |
1da177e4 LT |
768 | return ret; |
769 | } | |
770 | ||
771 | static u32 rtl8169_get_rx_csum(struct net_device *dev) | |
772 | { | |
773 | struct rtl8169_private *tp = netdev_priv(dev); | |
774 | ||
775 | return tp->cp_cmd & RxChkSum; | |
776 | } | |
777 | ||
778 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) | |
779 | { | |
780 | struct rtl8169_private *tp = netdev_priv(dev); | |
781 | void __iomem *ioaddr = tp->mmio_addr; | |
782 | unsigned long flags; | |
783 | ||
784 | spin_lock_irqsave(&tp->lock, flags); | |
785 | ||
786 | if (data) | |
787 | tp->cp_cmd |= RxChkSum; | |
788 | else | |
789 | tp->cp_cmd &= ~RxChkSum; | |
790 | ||
791 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
792 | RTL_R16(CPlusCmd); | |
793 | ||
794 | spin_unlock_irqrestore(&tp->lock, flags); | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | #ifdef CONFIG_R8169_VLAN | |
800 | ||
801 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
802 | struct sk_buff *skb) | |
803 | { | |
804 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? | |
805 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; | |
806 | } | |
807 | ||
808 | static void rtl8169_vlan_rx_register(struct net_device *dev, | |
809 | struct vlan_group *grp) | |
810 | { | |
811 | struct rtl8169_private *tp = netdev_priv(dev); | |
812 | void __iomem *ioaddr = tp->mmio_addr; | |
813 | unsigned long flags; | |
814 | ||
815 | spin_lock_irqsave(&tp->lock, flags); | |
816 | tp->vlgrp = grp; | |
817 | if (tp->vlgrp) | |
818 | tp->cp_cmd |= RxVlan; | |
819 | else | |
820 | tp->cp_cmd &= ~RxVlan; | |
821 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
822 | RTL_R16(CPlusCmd); | |
823 | spin_unlock_irqrestore(&tp->lock, flags); | |
824 | } | |
825 | ||
1da177e4 LT |
826 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
827 | struct sk_buff *skb) | |
828 | { | |
829 | u32 opts2 = le32_to_cpu(desc->opts2); | |
830 | int ret; | |
831 | ||
832 | if (tp->vlgrp && (opts2 & RxVlanTag)) { | |
07d3f51f | 833 | rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff)); |
1da177e4 LT |
834 | ret = 0; |
835 | } else | |
836 | ret = -1; | |
837 | desc->opts2 = 0; | |
838 | return ret; | |
839 | } | |
840 | ||
841 | #else /* !CONFIG_R8169_VLAN */ | |
842 | ||
843 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
844 | struct sk_buff *skb) | |
845 | { | |
846 | return 0; | |
847 | } | |
848 | ||
849 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
850 | struct sk_buff *skb) | |
851 | { | |
852 | return -1; | |
853 | } | |
854 | ||
855 | #endif | |
856 | ||
857 | static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) | |
858 | { | |
859 | struct rtl8169_private *tp = netdev_priv(dev); | |
860 | void __iomem *ioaddr = tp->mmio_addr; | |
861 | u32 status; | |
862 | ||
863 | cmd->supported = | |
864 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; | |
865 | cmd->port = PORT_FIBRE; | |
866 | cmd->transceiver = XCVR_INTERNAL; | |
867 | ||
868 | status = RTL_R32(TBICSR); | |
869 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; | |
870 | cmd->autoneg = !!(status & TBINwEnable); | |
871 | ||
872 | cmd->speed = SPEED_1000; | |
873 | cmd->duplex = DUPLEX_FULL; /* Always set */ | |
874 | } | |
875 | ||
876 | static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) | |
877 | { | |
878 | struct rtl8169_private *tp = netdev_priv(dev); | |
879 | void __iomem *ioaddr = tp->mmio_addr; | |
880 | u8 status; | |
881 | ||
882 | cmd->supported = SUPPORTED_10baseT_Half | | |
883 | SUPPORTED_10baseT_Full | | |
884 | SUPPORTED_100baseT_Half | | |
885 | SUPPORTED_100baseT_Full | | |
886 | SUPPORTED_1000baseT_Full | | |
887 | SUPPORTED_Autoneg | | |
5b0384f4 | 888 | SUPPORTED_TP; |
1da177e4 LT |
889 | |
890 | cmd->autoneg = 1; | |
891 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; | |
892 | ||
64e4bfb4 | 893 | if (tp->phy_auto_nego_reg & ADVERTISE_10HALF) |
1da177e4 | 894 | cmd->advertising |= ADVERTISED_10baseT_Half; |
64e4bfb4 | 895 | if (tp->phy_auto_nego_reg & ADVERTISE_10FULL) |
1da177e4 | 896 | cmd->advertising |= ADVERTISED_10baseT_Full; |
64e4bfb4 | 897 | if (tp->phy_auto_nego_reg & ADVERTISE_100HALF) |
1da177e4 | 898 | cmd->advertising |= ADVERTISED_100baseT_Half; |
64e4bfb4 | 899 | if (tp->phy_auto_nego_reg & ADVERTISE_100FULL) |
1da177e4 | 900 | cmd->advertising |= ADVERTISED_100baseT_Full; |
64e4bfb4 | 901 | if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL) |
1da177e4 LT |
902 | cmd->advertising |= ADVERTISED_1000baseT_Full; |
903 | ||
904 | status = RTL_R8(PHYstatus); | |
905 | ||
906 | if (status & _1000bpsF) | |
907 | cmd->speed = SPEED_1000; | |
908 | else if (status & _100bps) | |
909 | cmd->speed = SPEED_100; | |
910 | else if (status & _10bps) | |
911 | cmd->speed = SPEED_10; | |
912 | ||
623a1593 FR |
913 | if (status & TxFlowCtrl) |
914 | cmd->advertising |= ADVERTISED_Asym_Pause; | |
915 | if (status & RxFlowCtrl) | |
916 | cmd->advertising |= ADVERTISED_Pause; | |
917 | ||
1da177e4 LT |
918 | cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? |
919 | DUPLEX_FULL : DUPLEX_HALF; | |
920 | } | |
921 | ||
922 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
923 | { | |
924 | struct rtl8169_private *tp = netdev_priv(dev); | |
925 | unsigned long flags; | |
926 | ||
927 | spin_lock_irqsave(&tp->lock, flags); | |
928 | ||
929 | tp->get_settings(dev, cmd); | |
930 | ||
931 | spin_unlock_irqrestore(&tp->lock, flags); | |
932 | return 0; | |
933 | } | |
934 | ||
935 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
936 | void *p) | |
937 | { | |
5b0384f4 FR |
938 | struct rtl8169_private *tp = netdev_priv(dev); |
939 | unsigned long flags; | |
1da177e4 | 940 | |
5b0384f4 FR |
941 | if (regs->len > R8169_REGS_SIZE) |
942 | regs->len = R8169_REGS_SIZE; | |
1da177e4 | 943 | |
5b0384f4 FR |
944 | spin_lock_irqsave(&tp->lock, flags); |
945 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
946 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
947 | } |
948 | ||
b57b7e5a SH |
949 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
950 | { | |
951 | struct rtl8169_private *tp = netdev_priv(dev); | |
952 | ||
953 | return tp->msg_enable; | |
954 | } | |
955 | ||
956 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) | |
957 | { | |
958 | struct rtl8169_private *tp = netdev_priv(dev); | |
959 | ||
960 | tp->msg_enable = value; | |
961 | } | |
962 | ||
d4a3a0fc SH |
963 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
964 | "tx_packets", | |
965 | "rx_packets", | |
966 | "tx_errors", | |
967 | "rx_errors", | |
968 | "rx_missed", | |
969 | "align_errors", | |
970 | "tx_single_collisions", | |
971 | "tx_multi_collisions", | |
972 | "unicast", | |
973 | "broadcast", | |
974 | "multicast", | |
975 | "tx_aborted", | |
976 | "tx_underrun", | |
977 | }; | |
978 | ||
979 | struct rtl8169_counters { | |
b1eab701 AV |
980 | __le64 tx_packets; |
981 | __le64 rx_packets; | |
982 | __le64 tx_errors; | |
983 | __le32 rx_errors; | |
984 | __le16 rx_missed; | |
985 | __le16 align_errors; | |
986 | __le32 tx_one_collision; | |
987 | __le32 tx_multi_collision; | |
988 | __le64 rx_unicast; | |
989 | __le64 rx_broadcast; | |
990 | __le32 rx_multicast; | |
991 | __le16 tx_aborted; | |
992 | __le16 tx_underun; | |
d4a3a0fc SH |
993 | }; |
994 | ||
b9f2c044 | 995 | static int rtl8169_get_sset_count(struct net_device *dev, int sset) |
d4a3a0fc | 996 | { |
b9f2c044 JG |
997 | switch (sset) { |
998 | case ETH_SS_STATS: | |
999 | return ARRAY_SIZE(rtl8169_gstrings); | |
1000 | default: | |
1001 | return -EOPNOTSUPP; | |
1002 | } | |
d4a3a0fc SH |
1003 | } |
1004 | ||
1005 | static void rtl8169_get_ethtool_stats(struct net_device *dev, | |
1006 | struct ethtool_stats *stats, u64 *data) | |
1007 | { | |
1008 | struct rtl8169_private *tp = netdev_priv(dev); | |
1009 | void __iomem *ioaddr = tp->mmio_addr; | |
1010 | struct rtl8169_counters *counters; | |
1011 | dma_addr_t paddr; | |
1012 | u32 cmd; | |
1013 | ||
1014 | ASSERT_RTNL(); | |
1015 | ||
1016 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); | |
1017 | if (!counters) | |
1018 | return; | |
1019 | ||
1020 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); | |
1021 | cmd = (u64)paddr & DMA_32BIT_MASK; | |
1022 | RTL_W32(CounterAddrLow, cmd); | |
1023 | RTL_W32(CounterAddrLow, cmd | CounterDump); | |
1024 | ||
1025 | while (RTL_R32(CounterAddrLow) & CounterDump) { | |
1026 | if (msleep_interruptible(1)) | |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | RTL_W32(CounterAddrLow, 0); | |
1031 | RTL_W32(CounterAddrHigh, 0); | |
1032 | ||
5b0384f4 | 1033 | data[0] = le64_to_cpu(counters->tx_packets); |
d4a3a0fc SH |
1034 | data[1] = le64_to_cpu(counters->rx_packets); |
1035 | data[2] = le64_to_cpu(counters->tx_errors); | |
1036 | data[3] = le32_to_cpu(counters->rx_errors); | |
1037 | data[4] = le16_to_cpu(counters->rx_missed); | |
1038 | data[5] = le16_to_cpu(counters->align_errors); | |
1039 | data[6] = le32_to_cpu(counters->tx_one_collision); | |
1040 | data[7] = le32_to_cpu(counters->tx_multi_collision); | |
1041 | data[8] = le64_to_cpu(counters->rx_unicast); | |
1042 | data[9] = le64_to_cpu(counters->rx_broadcast); | |
1043 | data[10] = le32_to_cpu(counters->rx_multicast); | |
1044 | data[11] = le16_to_cpu(counters->tx_aborted); | |
1045 | data[12] = le16_to_cpu(counters->tx_underun); | |
1046 | ||
1047 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); | |
1048 | } | |
1049 | ||
1050 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1051 | { | |
1052 | switch(stringset) { | |
1053 | case ETH_SS_STATS: | |
1054 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); | |
1055 | break; | |
1056 | } | |
1057 | } | |
1058 | ||
7282d491 | 1059 | static const struct ethtool_ops rtl8169_ethtool_ops = { |
1da177e4 LT |
1060 | .get_drvinfo = rtl8169_get_drvinfo, |
1061 | .get_regs_len = rtl8169_get_regs_len, | |
1062 | .get_link = ethtool_op_get_link, | |
1063 | .get_settings = rtl8169_get_settings, | |
1064 | .set_settings = rtl8169_set_settings, | |
b57b7e5a SH |
1065 | .get_msglevel = rtl8169_get_msglevel, |
1066 | .set_msglevel = rtl8169_set_msglevel, | |
1da177e4 LT |
1067 | .get_rx_csum = rtl8169_get_rx_csum, |
1068 | .set_rx_csum = rtl8169_set_rx_csum, | |
1da177e4 | 1069 | .set_tx_csum = ethtool_op_set_tx_csum, |
1da177e4 | 1070 | .set_sg = ethtool_op_set_sg, |
1da177e4 LT |
1071 | .set_tso = ethtool_op_set_tso, |
1072 | .get_regs = rtl8169_get_regs, | |
61a4dcc2 FR |
1073 | .get_wol = rtl8169_get_wol, |
1074 | .set_wol = rtl8169_set_wol, | |
d4a3a0fc | 1075 | .get_strings = rtl8169_get_strings, |
b9f2c044 | 1076 | .get_sset_count = rtl8169_get_sset_count, |
d4a3a0fc | 1077 | .get_ethtool_stats = rtl8169_get_ethtool_stats, |
1da177e4 LT |
1078 | }; |
1079 | ||
07d3f51f FR |
1080 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, |
1081 | int bitnum, int bitval) | |
1da177e4 LT |
1082 | { |
1083 | int val; | |
1084 | ||
1085 | val = mdio_read(ioaddr, reg); | |
1086 | val = (bitval == 1) ? | |
1087 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); | |
5b0384f4 | 1088 | mdio_write(ioaddr, reg, val & 0xffff); |
1da177e4 LT |
1089 | } |
1090 | ||
07d3f51f FR |
1091 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, |
1092 | void __iomem *ioaddr) | |
1da177e4 | 1093 | { |
0e485150 FR |
1094 | /* |
1095 | * The driver currently handles the 8168Bf and the 8168Be identically | |
1096 | * but they can be identified more specifically through the test below | |
1097 | * if needed: | |
1098 | * | |
1099 | * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be | |
0127215c FR |
1100 | * |
1101 | * Same thing for the 8101Eb and the 8101Ec: | |
1102 | * | |
1103 | * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec | |
0e485150 | 1104 | */ |
1da177e4 LT |
1105 | const struct { |
1106 | u32 mask; | |
1107 | int mac_version; | |
1108 | } mac_info[] = { | |
bcf0bf90 FR |
1109 | { 0x38800000, RTL_GIGA_MAC_VER_15 }, |
1110 | { 0x38000000, RTL_GIGA_MAC_VER_12 }, | |
1111 | { 0x34000000, RTL_GIGA_MAC_VER_13 }, | |
1112 | { 0x30800000, RTL_GIGA_MAC_VER_14 }, | |
5b0384f4 | 1113 | { 0x30000000, RTL_GIGA_MAC_VER_11 }, |
6dccd16b | 1114 | { 0x98000000, RTL_GIGA_MAC_VER_06 }, |
bcf0bf90 FR |
1115 | { 0x18000000, RTL_GIGA_MAC_VER_05 }, |
1116 | { 0x10000000, RTL_GIGA_MAC_VER_04 }, | |
1117 | { 0x04000000, RTL_GIGA_MAC_VER_03 }, | |
1118 | { 0x00800000, RTL_GIGA_MAC_VER_02 }, | |
1119 | { 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ | |
1da177e4 LT |
1120 | }, *p = mac_info; |
1121 | u32 reg; | |
1122 | ||
6dccd16b | 1123 | reg = RTL_R32(TxConfig) & 0xfc800000; |
1da177e4 LT |
1124 | while ((reg & p->mask) != p->mask) |
1125 | p++; | |
1126 | tp->mac_version = p->mac_version; | |
1127 | } | |
1128 | ||
1129 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) | |
1130 | { | |
bcf0bf90 | 1131 | dprintk("mac_version = 0x%02x\n", tp->mac_version); |
1da177e4 LT |
1132 | } |
1133 | ||
07d3f51f FR |
1134 | static void rtl8169_get_phy_version(struct rtl8169_private *tp, |
1135 | void __iomem *ioaddr) | |
1da177e4 LT |
1136 | { |
1137 | const struct { | |
1138 | u16 mask; | |
1139 | u16 set; | |
1140 | int phy_version; | |
1141 | } phy_info[] = { | |
1142 | { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, | |
1143 | { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, | |
1144 | { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, | |
1145 | { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ | |
1146 | }, *p = phy_info; | |
1147 | u16 reg; | |
1148 | ||
64e4bfb4 | 1149 | reg = mdio_read(ioaddr, MII_PHYSID2) & 0xffff; |
1da177e4 LT |
1150 | while ((reg & p->mask) != p->set) |
1151 | p++; | |
1152 | tp->phy_version = p->phy_version; | |
1153 | } | |
1154 | ||
1155 | static void rtl8169_print_phy_version(struct rtl8169_private *tp) | |
1156 | { | |
1157 | struct { | |
1158 | int version; | |
1159 | char *msg; | |
1160 | u32 reg; | |
1161 | } phy_print[] = { | |
1162 | { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, | |
1163 | { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, | |
1164 | { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, | |
1165 | { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, | |
1166 | { 0, NULL, 0x0000 } | |
1167 | }, *p; | |
1168 | ||
1169 | for (p = phy_print; p->msg; p++) { | |
1170 | if (tp->phy_version == p->version) { | |
1171 | dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); | |
1172 | return; | |
1173 | } | |
1174 | } | |
1175 | dprintk("phy_version == Unknown\n"); | |
1176 | } | |
1177 | ||
1178 | static void rtl8169_hw_phy_config(struct net_device *dev) | |
1179 | { | |
1180 | struct rtl8169_private *tp = netdev_priv(dev); | |
1181 | void __iomem *ioaddr = tp->mmio_addr; | |
1182 | struct { | |
1183 | u16 regs[5]; /* Beware of bit-sign propagation */ | |
1184 | } phy_magic[5] = { { | |
1185 | { 0x0000, //w 4 15 12 0 | |
1186 | 0x00a1, //w 3 15 0 00a1 | |
1187 | 0x0008, //w 2 15 0 0008 | |
1188 | 0x1020, //w 1 15 0 1020 | |
1189 | 0x1000 } },{ //w 0 15 0 1000 | |
1190 | { 0x7000, //w 4 15 12 7 | |
1191 | 0xff41, //w 3 15 0 ff41 | |
1192 | 0xde60, //w 2 15 0 de60 | |
1193 | 0x0140, //w 1 15 0 0140 | |
1194 | 0x0077 } },{ //w 0 15 0 0077 | |
1195 | { 0xa000, //w 4 15 12 a | |
1196 | 0xdf01, //w 3 15 0 df01 | |
1197 | 0xdf20, //w 2 15 0 df20 | |
1198 | 0xff95, //w 1 15 0 ff95 | |
1199 | 0xfa00 } },{ //w 0 15 0 fa00 | |
1200 | { 0xb000, //w 4 15 12 b | |
1201 | 0xff41, //w 3 15 0 ff41 | |
1202 | 0xde20, //w 2 15 0 de20 | |
1203 | 0x0140, //w 1 15 0 0140 | |
1204 | 0x00bb } },{ //w 0 15 0 00bb | |
1205 | { 0xf000, //w 4 15 12 f | |
1206 | 0xdf01, //w 3 15 0 df01 | |
1207 | 0xdf20, //w 2 15 0 df20 | |
1208 | 0xff95, //w 1 15 0 ff95 | |
1209 | 0xbf00 } //w 0 15 0 bf00 | |
1210 | } | |
1211 | }, *p = phy_magic; | |
07d3f51f | 1212 | unsigned int i; |
1da177e4 LT |
1213 | |
1214 | rtl8169_print_mac_version(tp); | |
1215 | rtl8169_print_phy_version(tp); | |
1216 | ||
bcf0bf90 | 1217 | if (tp->mac_version <= RTL_GIGA_MAC_VER_01) |
1da177e4 LT |
1218 | return; |
1219 | if (tp->phy_version >= RTL_GIGA_PHY_VER_H) | |
1220 | return; | |
1221 | ||
1222 | dprintk("MAC version != 0 && PHY version == 0 or 1\n"); | |
1223 | dprintk("Do final_reg2.cfg\n"); | |
1224 | ||
1225 | /* Shazam ! */ | |
1226 | ||
bcf0bf90 | 1227 | if (tp->mac_version == RTL_GIGA_MAC_VER_04) { |
1da177e4 LT |
1228 | mdio_write(ioaddr, 31, 0x0002); |
1229 | mdio_write(ioaddr, 1, 0x90d0); | |
1230 | mdio_write(ioaddr, 31, 0x0000); | |
1231 | return; | |
1232 | } | |
1233 | ||
65d916d9 EH |
1234 | if ((tp->mac_version != RTL_GIGA_MAC_VER_02) && |
1235 | (tp->mac_version != RTL_GIGA_MAC_VER_03)) | |
1236 | return; | |
1237 | ||
1da177e4 LT |
1238 | mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 |
1239 | mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 | |
1240 | mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 | |
1241 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1242 | ||
1243 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { | |
1244 | int val, pos = 4; | |
1245 | ||
1246 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); | |
1247 | mdio_write(ioaddr, pos, val); | |
1248 | while (--pos >= 0) | |
1249 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); | |
1250 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 | |
1251 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1252 | } | |
1253 | mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 | |
1254 | } | |
1255 | ||
1256 | static void rtl8169_phy_timer(unsigned long __opaque) | |
1257 | { | |
1258 | struct net_device *dev = (struct net_device *)__opaque; | |
1259 | struct rtl8169_private *tp = netdev_priv(dev); | |
1260 | struct timer_list *timer = &tp->timer; | |
1261 | void __iomem *ioaddr = tp->mmio_addr; | |
1262 | unsigned long timeout = RTL8169_PHY_TIMEOUT; | |
1263 | ||
bcf0bf90 | 1264 | assert(tp->mac_version > RTL_GIGA_MAC_VER_01); |
1da177e4 LT |
1265 | assert(tp->phy_version < RTL_GIGA_PHY_VER_H); |
1266 | ||
64e4bfb4 | 1267 | if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
1268 | return; |
1269 | ||
1270 | spin_lock_irq(&tp->lock); | |
1271 | ||
1272 | if (tp->phy_reset_pending(ioaddr)) { | |
5b0384f4 | 1273 | /* |
1da177e4 LT |
1274 | * A busy loop could burn quite a few cycles on nowadays CPU. |
1275 | * Let's delay the execution of the timer for a few ticks. | |
1276 | */ | |
1277 | timeout = HZ/10; | |
1278 | goto out_mod_timer; | |
1279 | } | |
1280 | ||
1281 | if (tp->link_ok(ioaddr)) | |
1282 | goto out_unlock; | |
1283 | ||
b57b7e5a SH |
1284 | if (netif_msg_link(tp)) |
1285 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); | |
1da177e4 LT |
1286 | |
1287 | tp->phy_reset_enable(ioaddr); | |
1288 | ||
1289 | out_mod_timer: | |
1290 | mod_timer(timer, jiffies + timeout); | |
1291 | out_unlock: | |
1292 | spin_unlock_irq(&tp->lock); | |
1293 | } | |
1294 | ||
1295 | static inline void rtl8169_delete_timer(struct net_device *dev) | |
1296 | { | |
1297 | struct rtl8169_private *tp = netdev_priv(dev); | |
1298 | struct timer_list *timer = &tp->timer; | |
1299 | ||
bcf0bf90 | 1300 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1301 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1302 | return; | |
1303 | ||
1304 | del_timer_sync(timer); | |
1305 | } | |
1306 | ||
1307 | static inline void rtl8169_request_timer(struct net_device *dev) | |
1308 | { | |
1309 | struct rtl8169_private *tp = netdev_priv(dev); | |
1310 | struct timer_list *timer = &tp->timer; | |
1311 | ||
bcf0bf90 | 1312 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1313 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1314 | return; | |
1315 | ||
2efa53f3 | 1316 | mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT); |
1da177e4 LT |
1317 | } |
1318 | ||
1319 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1320 | /* | |
1321 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
1322 | * without having to re-enable interrupts. It's not called while | |
1323 | * the interrupt routine is executing. | |
1324 | */ | |
1325 | static void rtl8169_netpoll(struct net_device *dev) | |
1326 | { | |
1327 | struct rtl8169_private *tp = netdev_priv(dev); | |
1328 | struct pci_dev *pdev = tp->pci_dev; | |
1329 | ||
1330 | disable_irq(pdev->irq); | |
7d12e780 | 1331 | rtl8169_interrupt(pdev->irq, dev); |
1da177e4 LT |
1332 | enable_irq(pdev->irq); |
1333 | } | |
1334 | #endif | |
1335 | ||
1336 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, | |
1337 | void __iomem *ioaddr) | |
1338 | { | |
1339 | iounmap(ioaddr); | |
1340 | pci_release_regions(pdev); | |
1341 | pci_disable_device(pdev); | |
1342 | free_netdev(dev); | |
1343 | } | |
1344 | ||
bf793295 FR |
1345 | static void rtl8169_phy_reset(struct net_device *dev, |
1346 | struct rtl8169_private *tp) | |
1347 | { | |
1348 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 1349 | unsigned int i; |
bf793295 FR |
1350 | |
1351 | tp->phy_reset_enable(ioaddr); | |
1352 | for (i = 0; i < 100; i++) { | |
1353 | if (!tp->phy_reset_pending(ioaddr)) | |
1354 | return; | |
1355 | msleep(1); | |
1356 | } | |
1357 | if (netif_msg_link(tp)) | |
1358 | printk(KERN_ERR "%s: PHY reset failed.\n", dev->name); | |
1359 | } | |
1360 | ||
4ff96fa6 FR |
1361 | static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) |
1362 | { | |
1363 | void __iomem *ioaddr = tp->mmio_addr; | |
4ff96fa6 FR |
1364 | |
1365 | rtl8169_hw_phy_config(dev); | |
1366 | ||
1367 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1368 | RTL_W8(0x82, 0x01); | |
1369 | ||
6dccd16b FR |
1370 | pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); |
1371 | ||
1372 | if (tp->mac_version <= RTL_GIGA_MAC_VER_06) | |
1373 | pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); | |
4ff96fa6 | 1374 | |
bcf0bf90 | 1375 | if (tp->mac_version == RTL_GIGA_MAC_VER_02) { |
4ff96fa6 FR |
1376 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
1377 | RTL_W8(0x82, 0x01); | |
1378 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); | |
1379 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 | |
1380 | } | |
1381 | ||
bf793295 FR |
1382 | rtl8169_phy_reset(dev, tp); |
1383 | ||
901dda2b FR |
1384 | /* |
1385 | * rtl8169_set_speed_xmii takes good care of the Fast Ethernet | |
1386 | * only 8101. Don't panic. | |
1387 | */ | |
1388 | rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL); | |
4ff96fa6 FR |
1389 | |
1390 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) | |
1391 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); | |
1392 | } | |
1393 | ||
773d2021 FR |
1394 | static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) |
1395 | { | |
1396 | void __iomem *ioaddr = tp->mmio_addr; | |
1397 | u32 high; | |
1398 | u32 low; | |
1399 | ||
1400 | low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24); | |
1401 | high = addr[4] | (addr[5] << 8); | |
1402 | ||
1403 | spin_lock_irq(&tp->lock); | |
1404 | ||
1405 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
1406 | RTL_W32(MAC0, low); | |
1407 | RTL_W32(MAC4, high); | |
1408 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1409 | ||
1410 | spin_unlock_irq(&tp->lock); | |
1411 | } | |
1412 | ||
1413 | static int rtl_set_mac_address(struct net_device *dev, void *p) | |
1414 | { | |
1415 | struct rtl8169_private *tp = netdev_priv(dev); | |
1416 | struct sockaddr *addr = p; | |
1417 | ||
1418 | if (!is_valid_ether_addr(addr->sa_data)) | |
1419 | return -EADDRNOTAVAIL; | |
1420 | ||
1421 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1422 | ||
1423 | rtl_rar_set(tp, dev->dev_addr); | |
1424 | ||
1425 | return 0; | |
1426 | } | |
1427 | ||
5f787a1a FR |
1428 | static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1429 | { | |
1430 | struct rtl8169_private *tp = netdev_priv(dev); | |
1431 | struct mii_ioctl_data *data = if_mii(ifr); | |
1432 | ||
1433 | if (!netif_running(dev)) | |
1434 | return -ENODEV; | |
1435 | ||
1436 | switch (cmd) { | |
1437 | case SIOCGMIIPHY: | |
1438 | data->phy_id = 32; /* Internal PHY */ | |
1439 | return 0; | |
1440 | ||
1441 | case SIOCGMIIREG: | |
1442 | data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f); | |
1443 | return 0; | |
1444 | ||
1445 | case SIOCSMIIREG: | |
1446 | if (!capable(CAP_NET_ADMIN)) | |
1447 | return -EPERM; | |
1448 | mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in); | |
1449 | return 0; | |
1450 | } | |
1451 | return -EOPNOTSUPP; | |
1452 | } | |
1453 | ||
0e485150 FR |
1454 | static const struct rtl_cfg_info { |
1455 | void (*hw_start)(struct net_device *); | |
1456 | unsigned int region; | |
1457 | unsigned int align; | |
1458 | u16 intr_event; | |
1459 | u16 napi_event; | |
1460 | } rtl_cfg_infos [] = { | |
1461 | [RTL_CFG_0] = { | |
1462 | .hw_start = rtl_hw_start_8169, | |
1463 | .region = 1, | |
e9f63f30 | 1464 | .align = 0, |
0e485150 FR |
1465 | .intr_event = SYSErr | LinkChg | RxOverflow | |
1466 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
1467 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow | |
1468 | }, | |
1469 | [RTL_CFG_1] = { | |
1470 | .hw_start = rtl_hw_start_8168, | |
1471 | .region = 2, | |
1472 | .align = 8, | |
1473 | .intr_event = SYSErr | LinkChg | RxOverflow | | |
1474 | TxErr | TxOK | RxOK | RxErr, | |
1475 | .napi_event = TxErr | TxOK | RxOK | RxOverflow | |
1476 | }, | |
1477 | [RTL_CFG_2] = { | |
1478 | .hw_start = rtl_hw_start_8101, | |
1479 | .region = 2, | |
1480 | .align = 8, | |
1481 | .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout | | |
1482 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
1483 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow | |
1484 | } | |
1485 | }; | |
1486 | ||
1da177e4 | 1487 | static int __devinit |
4ff96fa6 | 1488 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 1489 | { |
0e485150 FR |
1490 | const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; |
1491 | const unsigned int region = cfg->region; | |
1da177e4 | 1492 | struct rtl8169_private *tp; |
4ff96fa6 FR |
1493 | struct net_device *dev; |
1494 | void __iomem *ioaddr; | |
07d3f51f FR |
1495 | unsigned int i; |
1496 | int rc; | |
1da177e4 | 1497 | |
4ff96fa6 FR |
1498 | if (netif_msg_drv(&debug)) { |
1499 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", | |
1500 | MODULENAME, RTL8169_VERSION); | |
1501 | } | |
1da177e4 | 1502 | |
1da177e4 | 1503 | dev = alloc_etherdev(sizeof (*tp)); |
4ff96fa6 | 1504 | if (!dev) { |
b57b7e5a | 1505 | if (netif_msg_drv(&debug)) |
9b91cf9d | 1506 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
4ff96fa6 FR |
1507 | rc = -ENOMEM; |
1508 | goto out; | |
1da177e4 LT |
1509 | } |
1510 | ||
1da177e4 LT |
1511 | SET_NETDEV_DEV(dev, &pdev->dev); |
1512 | tp = netdev_priv(dev); | |
c4028958 | 1513 | tp->dev = dev; |
b57b7e5a | 1514 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
1da177e4 LT |
1515 | |
1516 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
1517 | rc = pci_enable_device(pdev); | |
b57b7e5a | 1518 | if (rc < 0) { |
2e8a538d | 1519 | if (netif_msg_probe(tp)) |
9b91cf9d | 1520 | dev_err(&pdev->dev, "enable failure\n"); |
4ff96fa6 | 1521 | goto err_out_free_dev_1; |
1da177e4 LT |
1522 | } |
1523 | ||
1524 | rc = pci_set_mwi(pdev); | |
1525 | if (rc < 0) | |
4ff96fa6 | 1526 | goto err_out_disable_2; |
1da177e4 | 1527 | |
1da177e4 | 1528 | /* make sure PCI base addr 1 is MMIO */ |
bcf0bf90 | 1529 | if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { |
4ff96fa6 | 1530 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1531 | dev_err(&pdev->dev, |
bcf0bf90 FR |
1532 | "region #%d not an MMIO resource, aborting\n", |
1533 | region); | |
4ff96fa6 | 1534 | } |
1da177e4 | 1535 | rc = -ENODEV; |
4ff96fa6 | 1536 | goto err_out_mwi_3; |
1da177e4 | 1537 | } |
4ff96fa6 | 1538 | |
1da177e4 | 1539 | /* check for weird/broken PCI region reporting */ |
bcf0bf90 | 1540 | if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) { |
4ff96fa6 | 1541 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1542 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1543 | "Invalid PCI region size(s), aborting\n"); |
1544 | } | |
1da177e4 | 1545 | rc = -ENODEV; |
4ff96fa6 | 1546 | goto err_out_mwi_3; |
1da177e4 LT |
1547 | } |
1548 | ||
1549 | rc = pci_request_regions(pdev, MODULENAME); | |
b57b7e5a | 1550 | if (rc < 0) { |
2e8a538d | 1551 | if (netif_msg_probe(tp)) |
9b91cf9d | 1552 | dev_err(&pdev->dev, "could not request regions.\n"); |
4ff96fa6 | 1553 | goto err_out_mwi_3; |
1da177e4 LT |
1554 | } |
1555 | ||
1556 | tp->cp_cmd = PCIMulRW | RxChkSum; | |
1557 | ||
1558 | if ((sizeof(dma_addr_t) > 4) && | |
1559 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { | |
1560 | tp->cp_cmd |= PCIDAC; | |
1561 | dev->features |= NETIF_F_HIGHDMA; | |
1562 | } else { | |
1563 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1564 | if (rc < 0) { | |
4ff96fa6 | 1565 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1566 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1567 | "DMA configuration failed.\n"); |
1568 | } | |
1569 | goto err_out_free_res_4; | |
1da177e4 LT |
1570 | } |
1571 | } | |
1572 | ||
1573 | pci_set_master(pdev); | |
1574 | ||
1575 | /* ioremap MMIO region */ | |
bcf0bf90 | 1576 | ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE); |
4ff96fa6 | 1577 | if (!ioaddr) { |
b57b7e5a | 1578 | if (netif_msg_probe(tp)) |
9b91cf9d | 1579 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
1da177e4 | 1580 | rc = -EIO; |
4ff96fa6 | 1581 | goto err_out_free_res_4; |
1da177e4 LT |
1582 | } |
1583 | ||
1584 | /* Unneeded ? Don't mess with Mrs. Murphy. */ | |
1585 | rtl8169_irq_mask_and_ack(ioaddr); | |
1586 | ||
1587 | /* Soft reset the chip. */ | |
1588 | RTL_W8(ChipCmd, CmdReset); | |
1589 | ||
1590 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 1591 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
1592 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1593 | break; | |
b518fa8e | 1594 | msleep_interruptible(1); |
1da177e4 LT |
1595 | } |
1596 | ||
1597 | /* Identify chip attached to board */ | |
1598 | rtl8169_get_mac_version(tp, ioaddr); | |
1599 | rtl8169_get_phy_version(tp, ioaddr); | |
1600 | ||
1601 | rtl8169_print_mac_version(tp); | |
1602 | rtl8169_print_phy_version(tp); | |
1603 | ||
1604 | for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { | |
1605 | if (tp->mac_version == rtl_chip_info[i].mac_version) | |
1606 | break; | |
1607 | } | |
1608 | if (i < 0) { | |
1609 | /* Unknown chip: assume array element #0, original RTL-8169 */ | |
b57b7e5a | 1610 | if (netif_msg_probe(tp)) { |
2e8a538d | 1611 | dev_printk(KERN_DEBUG, &pdev->dev, |
4ff96fa6 FR |
1612 | "unknown chip version, assuming %s\n", |
1613 | rtl_chip_info[0].name); | |
b57b7e5a | 1614 | } |
1da177e4 LT |
1615 | i++; |
1616 | } | |
1617 | tp->chipset = i; | |
1618 | ||
5d06a99f FR |
1619 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
1620 | RTL_W8(Config1, RTL_R8(Config1) | PMEnable); | |
1621 | RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); | |
1622 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1623 | ||
1da177e4 LT |
1624 | if (RTL_R8(PHYstatus) & TBI_Enable) { |
1625 | tp->set_speed = rtl8169_set_speed_tbi; | |
1626 | tp->get_settings = rtl8169_gset_tbi; | |
1627 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; | |
1628 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; | |
1629 | tp->link_ok = rtl8169_tbi_link_ok; | |
1630 | ||
64e4bfb4 | 1631 | tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ |
1da177e4 LT |
1632 | } else { |
1633 | tp->set_speed = rtl8169_set_speed_xmii; | |
1634 | tp->get_settings = rtl8169_gset_xmii; | |
1635 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; | |
1636 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; | |
1637 | tp->link_ok = rtl8169_xmii_link_ok; | |
5f787a1a FR |
1638 | |
1639 | dev->do_ioctl = rtl8169_ioctl; | |
1da177e4 LT |
1640 | } |
1641 | ||
1642 | /* Get MAC address. FIXME: read EEPROM */ | |
1643 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1644 | dev->dev_addr[i] = RTL_R8(MAC0 + i); | |
6d6525b7 | 1645 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
1646 | |
1647 | dev->open = rtl8169_open; | |
1648 | dev->hard_start_xmit = rtl8169_start_xmit; | |
1649 | dev->get_stats = rtl8169_get_stats; | |
1650 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); | |
1651 | dev->stop = rtl8169_close; | |
1652 | dev->tx_timeout = rtl8169_tx_timeout; | |
07ce4064 | 1653 | dev->set_multicast_list = rtl_set_rx_mode; |
1da177e4 LT |
1654 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
1655 | dev->irq = pdev->irq; | |
1656 | dev->base_addr = (unsigned long) ioaddr; | |
1657 | dev->change_mtu = rtl8169_change_mtu; | |
773d2021 | 1658 | dev->set_mac_address = rtl_set_mac_address; |
1da177e4 LT |
1659 | |
1660 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 1661 | netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT); |
1da177e4 LT |
1662 | #endif |
1663 | ||
1664 | #ifdef CONFIG_R8169_VLAN | |
1665 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1666 | dev->vlan_rx_register = rtl8169_vlan_rx_register; | |
1da177e4 LT |
1667 | #endif |
1668 | ||
1669 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1670 | dev->poll_controller = rtl8169_netpoll; | |
1671 | #endif | |
1672 | ||
1673 | tp->intr_mask = 0xffff; | |
1674 | tp->pci_dev = pdev; | |
1675 | tp->mmio_addr = ioaddr; | |
0e485150 FR |
1676 | tp->align = cfg->align; |
1677 | tp->hw_start = cfg->hw_start; | |
1678 | tp->intr_event = cfg->intr_event; | |
1679 | tp->napi_event = cfg->napi_event; | |
1da177e4 | 1680 | |
2efa53f3 FR |
1681 | init_timer(&tp->timer); |
1682 | tp->timer.data = (unsigned long) dev; | |
1683 | tp->timer.function = rtl8169_phy_timer; | |
1684 | ||
1da177e4 LT |
1685 | spin_lock_init(&tp->lock); |
1686 | ||
1687 | rc = register_netdev(dev); | |
4ff96fa6 FR |
1688 | if (rc < 0) |
1689 | goto err_out_unmap_5; | |
1da177e4 LT |
1690 | |
1691 | pci_set_drvdata(pdev, dev); | |
1692 | ||
b57b7e5a | 1693 | if (netif_msg_probe(tp)) { |
96b9709c FR |
1694 | u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff; |
1695 | ||
b57b7e5a SH |
1696 | printk(KERN_INFO "%s: %s at 0x%lx, " |
1697 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " | |
96b9709c | 1698 | "XID %08x IRQ %d\n", |
b57b7e5a | 1699 | dev->name, |
bcf0bf90 | 1700 | rtl_chip_info[tp->chipset].name, |
b57b7e5a SH |
1701 | dev->base_addr, |
1702 | dev->dev_addr[0], dev->dev_addr[1], | |
1703 | dev->dev_addr[2], dev->dev_addr[3], | |
96b9709c | 1704 | dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq); |
b57b7e5a | 1705 | } |
1da177e4 | 1706 | |
4ff96fa6 | 1707 | rtl8169_init_phy(dev, tp); |
1da177e4 | 1708 | |
4ff96fa6 FR |
1709 | out: |
1710 | return rc; | |
1da177e4 | 1711 | |
4ff96fa6 FR |
1712 | err_out_unmap_5: |
1713 | iounmap(ioaddr); | |
1714 | err_out_free_res_4: | |
1715 | pci_release_regions(pdev); | |
1716 | err_out_mwi_3: | |
1717 | pci_clear_mwi(pdev); | |
1718 | err_out_disable_2: | |
1719 | pci_disable_device(pdev); | |
1720 | err_out_free_dev_1: | |
1721 | free_netdev(dev); | |
1722 | goto out; | |
1da177e4 LT |
1723 | } |
1724 | ||
07d3f51f | 1725 | static void __devexit rtl8169_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
1726 | { |
1727 | struct net_device *dev = pci_get_drvdata(pdev); | |
1728 | struct rtl8169_private *tp = netdev_priv(dev); | |
1729 | ||
eb2a021c FR |
1730 | flush_scheduled_work(); |
1731 | ||
1da177e4 LT |
1732 | unregister_netdev(dev); |
1733 | rtl8169_release_board(pdev, dev, tp->mmio_addr); | |
1734 | pci_set_drvdata(pdev, NULL); | |
1735 | } | |
1736 | ||
1da177e4 LT |
1737 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, |
1738 | struct net_device *dev) | |
1739 | { | |
1740 | unsigned int mtu = dev->mtu; | |
1741 | ||
1742 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
1743 | } | |
1744 | ||
1745 | static int rtl8169_open(struct net_device *dev) | |
1746 | { | |
1747 | struct rtl8169_private *tp = netdev_priv(dev); | |
1748 | struct pci_dev *pdev = tp->pci_dev; | |
99f252b0 | 1749 | int retval = -ENOMEM; |
1da177e4 | 1750 | |
1da177e4 | 1751 | |
99f252b0 | 1752 | rtl8169_set_rxbufsize(tp, dev); |
1da177e4 LT |
1753 | |
1754 | /* | |
1755 | * Rx and Tx desscriptors needs 256 bytes alignment. | |
1756 | * pci_alloc_consistent provides more. | |
1757 | */ | |
1758 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, | |
1759 | &tp->TxPhyAddr); | |
1760 | if (!tp->TxDescArray) | |
99f252b0 | 1761 | goto out; |
1da177e4 LT |
1762 | |
1763 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, | |
1764 | &tp->RxPhyAddr); | |
1765 | if (!tp->RxDescArray) | |
99f252b0 | 1766 | goto err_free_tx_0; |
1da177e4 LT |
1767 | |
1768 | retval = rtl8169_init_ring(dev); | |
1769 | if (retval < 0) | |
99f252b0 | 1770 | goto err_free_rx_1; |
1da177e4 | 1771 | |
c4028958 | 1772 | INIT_DELAYED_WORK(&tp->task, NULL); |
1da177e4 | 1773 | |
99f252b0 FR |
1774 | smp_mb(); |
1775 | ||
1776 | retval = request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED, | |
1777 | dev->name, dev); | |
1778 | if (retval < 0) | |
1779 | goto err_release_ring_2; | |
1780 | ||
bea3348e SH |
1781 | #ifdef CONFIG_R8169_NAPI |
1782 | napi_enable(&tp->napi); | |
1783 | #endif | |
1784 | ||
07ce4064 | 1785 | rtl_hw_start(dev); |
1da177e4 LT |
1786 | |
1787 | rtl8169_request_timer(dev); | |
1788 | ||
1789 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); | |
1790 | out: | |
1791 | return retval; | |
1792 | ||
99f252b0 FR |
1793 | err_release_ring_2: |
1794 | rtl8169_rx_clear(tp); | |
1795 | err_free_rx_1: | |
1da177e4 LT |
1796 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
1797 | tp->RxPhyAddr); | |
99f252b0 | 1798 | err_free_tx_0: |
1da177e4 LT |
1799 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
1800 | tp->TxPhyAddr); | |
1da177e4 LT |
1801 | goto out; |
1802 | } | |
1803 | ||
1804 | static void rtl8169_hw_reset(void __iomem *ioaddr) | |
1805 | { | |
1806 | /* Disable interrupts */ | |
1807 | rtl8169_irq_mask_and_ack(ioaddr); | |
1808 | ||
1809 | /* Reset the chipset */ | |
1810 | RTL_W8(ChipCmd, CmdReset); | |
1811 | ||
1812 | /* PCI commit */ | |
1813 | RTL_R8(ChipCmd); | |
1814 | } | |
1815 | ||
7f796d83 | 1816 | static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) |
9cb427b6 FR |
1817 | { |
1818 | void __iomem *ioaddr = tp->mmio_addr; | |
1819 | u32 cfg = rtl8169_rx_config; | |
1820 | ||
1821 | cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
1822 | RTL_W32(RxConfig, cfg); | |
1823 | ||
1824 | /* Set DMA burst size and Interframe Gap Time */ | |
1825 | RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | | |
1826 | (InterFrameGap << TxInterFrameGapShift)); | |
1827 | } | |
1828 | ||
07ce4064 | 1829 | static void rtl_hw_start(struct net_device *dev) |
1da177e4 LT |
1830 | { |
1831 | struct rtl8169_private *tp = netdev_priv(dev); | |
1832 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 1833 | unsigned int i; |
1da177e4 LT |
1834 | |
1835 | /* Soft reset the chip. */ | |
1836 | RTL_W8(ChipCmd, CmdReset); | |
1837 | ||
1838 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 1839 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
1840 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1841 | break; | |
b518fa8e | 1842 | msleep_interruptible(1); |
1da177e4 LT |
1843 | } |
1844 | ||
07ce4064 FR |
1845 | tp->hw_start(dev); |
1846 | ||
07ce4064 FR |
1847 | netif_start_queue(dev); |
1848 | } | |
1849 | ||
1850 | ||
7f796d83 FR |
1851 | static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp, |
1852 | void __iomem *ioaddr) | |
1853 | { | |
1854 | /* | |
1855 | * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh | |
1856 | * register to be written before TxDescAddrLow to work. | |
1857 | * Switching from MMIO to I/O access fixes the issue as well. | |
1858 | */ | |
1859 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32); | |
1860 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK); | |
1861 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32); | |
1862 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK); | |
1863 | } | |
1864 | ||
1865 | static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) | |
1866 | { | |
1867 | u16 cmd; | |
1868 | ||
1869 | cmd = RTL_R16(CPlusCmd); | |
1870 | RTL_W16(CPlusCmd, cmd); | |
1871 | return cmd; | |
1872 | } | |
1873 | ||
1874 | static void rtl_set_rx_max_size(void __iomem *ioaddr) | |
1875 | { | |
1876 | /* Low hurts. Let's disable the filtering. */ | |
1877 | RTL_W16(RxMaxSize, 16383); | |
1878 | } | |
1879 | ||
6dccd16b FR |
1880 | static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) |
1881 | { | |
1882 | struct { | |
1883 | u32 mac_version; | |
1884 | u32 clk; | |
1885 | u32 val; | |
1886 | } cfg2_info [] = { | |
1887 | { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd | |
1888 | { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff }, | |
1889 | { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe | |
1890 | { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff } | |
1891 | }, *p = cfg2_info; | |
1892 | unsigned int i; | |
1893 | u32 clk; | |
1894 | ||
1895 | clk = RTL_R8(Config2) & PCI_Clock_66MHz; | |
1896 | for (i = 0; i < ARRAY_SIZE(cfg2_info); i++) { | |
1897 | if ((p->mac_version == mac_version) && (p->clk == clk)) { | |
1898 | RTL_W32(0x7c, p->val); | |
1899 | break; | |
1900 | } | |
1901 | } | |
1902 | } | |
1903 | ||
07ce4064 FR |
1904 | static void rtl_hw_start_8169(struct net_device *dev) |
1905 | { | |
1906 | struct rtl8169_private *tp = netdev_priv(dev); | |
1907 | void __iomem *ioaddr = tp->mmio_addr; | |
1908 | struct pci_dev *pdev = tp->pci_dev; | |
07ce4064 | 1909 | |
9cb427b6 FR |
1910 | if (tp->mac_version == RTL_GIGA_MAC_VER_05) { |
1911 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); | |
1912 | pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); | |
1913 | } | |
1914 | ||
1da177e4 | 1915 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
9cb427b6 FR |
1916 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1917 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1918 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1919 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
1920 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1921 | ||
1da177e4 LT |
1922 | RTL_W8(EarlyTxThres, EarlyTxThld); |
1923 | ||
7f796d83 | 1924 | rtl_set_rx_max_size(ioaddr); |
1da177e4 | 1925 | |
c946b304 FR |
1926 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1927 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1928 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1929 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
1930 | rtl_set_rx_tx_config_registers(tp); | |
1da177e4 | 1931 | |
7f796d83 | 1932 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; |
1da177e4 | 1933 | |
bcf0bf90 FR |
1934 | if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || |
1935 | (tp->mac_version == RTL_GIGA_MAC_VER_03)) { | |
1da177e4 LT |
1936 | dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " |
1937 | "Bit-3 and bit-14 MUST be 1\n"); | |
bcf0bf90 | 1938 | tp->cp_cmd |= (1 << 14); |
1da177e4 LT |
1939 | } |
1940 | ||
bcf0bf90 FR |
1941 | RTL_W16(CPlusCmd, tp->cp_cmd); |
1942 | ||
6dccd16b FR |
1943 | rtl8169_set_magic_reg(ioaddr, tp->mac_version); |
1944 | ||
1da177e4 LT |
1945 | /* |
1946 | * Undocumented corner. Supposedly: | |
1947 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets | |
1948 | */ | |
1949 | RTL_W16(IntrMitigate, 0x0000); | |
1950 | ||
7f796d83 | 1951 | rtl_set_rx_tx_desc_registers(tp, ioaddr); |
9cb427b6 | 1952 | |
c946b304 FR |
1953 | if ((tp->mac_version != RTL_GIGA_MAC_VER_01) && |
1954 | (tp->mac_version != RTL_GIGA_MAC_VER_02) && | |
1955 | (tp->mac_version != RTL_GIGA_MAC_VER_03) && | |
1956 | (tp->mac_version != RTL_GIGA_MAC_VER_04)) { | |
1957 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1958 | rtl_set_rx_tx_config_registers(tp); | |
1959 | } | |
1960 | ||
1da177e4 | 1961 | RTL_W8(Cfg9346, Cfg9346_Lock); |
b518fa8e FR |
1962 | |
1963 | /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ | |
1964 | RTL_R8(IntrMask); | |
1da177e4 LT |
1965 | |
1966 | RTL_W32(RxMissed, 0); | |
1967 | ||
07ce4064 | 1968 | rtl_set_rx_mode(dev); |
1da177e4 LT |
1969 | |
1970 | /* no early-rx interrupts */ | |
1971 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); | |
6dccd16b FR |
1972 | |
1973 | /* Enable all known interrupts by setting the interrupt mask. */ | |
0e485150 | 1974 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 1975 | } |
1da177e4 | 1976 | |
07ce4064 FR |
1977 | static void rtl_hw_start_8168(struct net_device *dev) |
1978 | { | |
2dd99530 FR |
1979 | struct rtl8169_private *tp = netdev_priv(dev); |
1980 | void __iomem *ioaddr = tp->mmio_addr; | |
0e485150 FR |
1981 | struct pci_dev *pdev = tp->pci_dev; |
1982 | u8 ctl; | |
2dd99530 FR |
1983 | |
1984 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
1985 | ||
1986 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
1987 | ||
1988 | rtl_set_rx_max_size(ioaddr); | |
1989 | ||
0e485150 FR |
1990 | rtl_set_rx_tx_config_registers(tp); |
1991 | ||
1992 | tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; | |
2dd99530 FR |
1993 | |
1994 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
1995 | ||
0e485150 FR |
1996 | /* Tx performance tweak. */ |
1997 | pci_read_config_byte(pdev, 0x69, &ctl); | |
1998 | ctl = (ctl & ~0x70) | 0x50; | |
1999 | pci_write_config_byte(pdev, 0x69, ctl); | |
2dd99530 | 2000 | |
0e485150 | 2001 | RTL_W16(IntrMitigate, 0x5151); |
2dd99530 | 2002 | |
0e485150 FR |
2003 | /* Work around for RxFIFO overflow. */ |
2004 | if (tp->mac_version == RTL_GIGA_MAC_VER_11) { | |
2005 | tp->intr_event |= RxFIFOOver | PCSTimeout; | |
2006 | tp->intr_event &= ~RxOverflow; | |
2007 | } | |
2008 | ||
2009 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2dd99530 FR |
2010 | |
2011 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2012 | ||
2013 | RTL_R8(IntrMask); | |
2014 | ||
2015 | RTL_W32(RxMissed, 0); | |
2016 | ||
2017 | rtl_set_rx_mode(dev); | |
2018 | ||
0e485150 FR |
2019 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2020 | ||
2dd99530 | 2021 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); |
6dccd16b | 2022 | |
0e485150 | 2023 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 2024 | } |
1da177e4 | 2025 | |
07ce4064 FR |
2026 | static void rtl_hw_start_8101(struct net_device *dev) |
2027 | { | |
cdf1a608 FR |
2028 | struct rtl8169_private *tp = netdev_priv(dev); |
2029 | void __iomem *ioaddr = tp->mmio_addr; | |
2030 | struct pci_dev *pdev = tp->pci_dev; | |
2031 | ||
2032 | if (tp->mac_version == RTL_GIGA_MAC_VER_13) { | |
2033 | pci_write_config_word(pdev, 0x68, 0x00); | |
2034 | pci_write_config_word(pdev, 0x69, 0x08); | |
2035 | } | |
2036 | ||
2037 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
2038 | ||
2039 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
2040 | ||
2041 | rtl_set_rx_max_size(ioaddr); | |
2042 | ||
2043 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; | |
2044 | ||
2045 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2046 | ||
2047 | RTL_W16(IntrMitigate, 0x0000); | |
2048 | ||
2049 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2050 | ||
2051 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2052 | rtl_set_rx_tx_config_registers(tp); | |
2053 | ||
2054 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2055 | ||
2056 | RTL_R8(IntrMask); | |
2057 | ||
2058 | RTL_W32(RxMissed, 0); | |
2059 | ||
2060 | rtl_set_rx_mode(dev); | |
2061 | ||
0e485150 FR |
2062 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2063 | ||
cdf1a608 | 2064 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000); |
6dccd16b | 2065 | |
0e485150 | 2066 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
2067 | } |
2068 | ||
2069 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) | |
2070 | { | |
2071 | struct rtl8169_private *tp = netdev_priv(dev); | |
2072 | int ret = 0; | |
2073 | ||
2074 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) | |
2075 | return -EINVAL; | |
2076 | ||
2077 | dev->mtu = new_mtu; | |
2078 | ||
2079 | if (!netif_running(dev)) | |
2080 | goto out; | |
2081 | ||
2082 | rtl8169_down(dev); | |
2083 | ||
2084 | rtl8169_set_rxbufsize(tp, dev); | |
2085 | ||
2086 | ret = rtl8169_init_ring(dev); | |
2087 | if (ret < 0) | |
2088 | goto out; | |
2089 | ||
bea3348e SH |
2090 | #ifdef CONFIG_R8169_NAPI |
2091 | napi_enable(&tp->napi); | |
2092 | #endif | |
1da177e4 | 2093 | |
07ce4064 | 2094 | rtl_hw_start(dev); |
1da177e4 LT |
2095 | |
2096 | rtl8169_request_timer(dev); | |
2097 | ||
2098 | out: | |
2099 | return ret; | |
2100 | } | |
2101 | ||
2102 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) | |
2103 | { | |
2104 | desc->addr = 0x0badbadbadbadbadull; | |
2105 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); | |
2106 | } | |
2107 | ||
2108 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, | |
2109 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
2110 | { | |
2111 | struct pci_dev *pdev = tp->pci_dev; | |
2112 | ||
2113 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
2114 | PCI_DMA_FROMDEVICE); | |
2115 | dev_kfree_skb(*sk_buff); | |
2116 | *sk_buff = NULL; | |
2117 | rtl8169_make_unusable_by_asic(desc); | |
2118 | } | |
2119 | ||
2120 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
2121 | { | |
2122 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; | |
2123 | ||
2124 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); | |
2125 | } | |
2126 | ||
2127 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
2128 | u32 rx_buf_sz) | |
2129 | { | |
2130 | desc->addr = cpu_to_le64(mapping); | |
2131 | wmb(); | |
2132 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
2133 | } | |
2134 | ||
15d31758 SH |
2135 | static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev, |
2136 | struct net_device *dev, | |
2137 | struct RxDesc *desc, int rx_buf_sz, | |
2138 | unsigned int align) | |
1da177e4 LT |
2139 | { |
2140 | struct sk_buff *skb; | |
2141 | dma_addr_t mapping; | |
e9f63f30 | 2142 | unsigned int pad; |
1da177e4 | 2143 | |
e9f63f30 FR |
2144 | pad = align ? align : NET_IP_ALIGN; |
2145 | ||
2146 | skb = netdev_alloc_skb(dev, rx_buf_sz + pad); | |
1da177e4 LT |
2147 | if (!skb) |
2148 | goto err_out; | |
2149 | ||
e9f63f30 | 2150 | skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad); |
1da177e4 | 2151 | |
689be439 | 2152 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
1da177e4 LT |
2153 | PCI_DMA_FROMDEVICE); |
2154 | ||
2155 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); | |
1da177e4 | 2156 | out: |
15d31758 | 2157 | return skb; |
1da177e4 LT |
2158 | |
2159 | err_out: | |
1da177e4 LT |
2160 | rtl8169_make_unusable_by_asic(desc); |
2161 | goto out; | |
2162 | } | |
2163 | ||
2164 | static void rtl8169_rx_clear(struct rtl8169_private *tp) | |
2165 | { | |
07d3f51f | 2166 | unsigned int i; |
1da177e4 LT |
2167 | |
2168 | for (i = 0; i < NUM_RX_DESC; i++) { | |
2169 | if (tp->Rx_skbuff[i]) { | |
2170 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, | |
2171 | tp->RxDescArray + i); | |
2172 | } | |
2173 | } | |
2174 | } | |
2175 | ||
2176 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, | |
2177 | u32 start, u32 end) | |
2178 | { | |
2179 | u32 cur; | |
5b0384f4 | 2180 | |
4ae47c2d | 2181 | for (cur = start; end - cur != 0; cur++) { |
15d31758 SH |
2182 | struct sk_buff *skb; |
2183 | unsigned int i = cur % NUM_RX_DESC; | |
1da177e4 | 2184 | |
4ae47c2d FR |
2185 | WARN_ON((s32)(end - cur) < 0); |
2186 | ||
1da177e4 LT |
2187 | if (tp->Rx_skbuff[i]) |
2188 | continue; | |
bcf0bf90 | 2189 | |
15d31758 SH |
2190 | skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev, |
2191 | tp->RxDescArray + i, | |
2192 | tp->rx_buf_sz, tp->align); | |
2193 | if (!skb) | |
1da177e4 | 2194 | break; |
15d31758 SH |
2195 | |
2196 | tp->Rx_skbuff[i] = skb; | |
1da177e4 LT |
2197 | } |
2198 | return cur - start; | |
2199 | } | |
2200 | ||
2201 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) | |
2202 | { | |
2203 | desc->opts1 |= cpu_to_le32(RingEnd); | |
2204 | } | |
2205 | ||
2206 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) | |
2207 | { | |
2208 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
2209 | } | |
2210 | ||
2211 | static int rtl8169_init_ring(struct net_device *dev) | |
2212 | { | |
2213 | struct rtl8169_private *tp = netdev_priv(dev); | |
2214 | ||
2215 | rtl8169_init_ring_indexes(tp); | |
2216 | ||
2217 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); | |
2218 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
2219 | ||
2220 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
2221 | goto err_out; | |
2222 | ||
2223 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); | |
2224 | ||
2225 | return 0; | |
2226 | ||
2227 | err_out: | |
2228 | rtl8169_rx_clear(tp); | |
2229 | return -ENOMEM; | |
2230 | } | |
2231 | ||
2232 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, | |
2233 | struct TxDesc *desc) | |
2234 | { | |
2235 | unsigned int len = tx_skb->len; | |
2236 | ||
2237 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
2238 | desc->opts1 = 0x00; | |
2239 | desc->opts2 = 0x00; | |
2240 | desc->addr = 0x00; | |
2241 | tx_skb->len = 0; | |
2242 | } | |
2243 | ||
2244 | static void rtl8169_tx_clear(struct rtl8169_private *tp) | |
2245 | { | |
2246 | unsigned int i; | |
2247 | ||
2248 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { | |
2249 | unsigned int entry = i % NUM_TX_DESC; | |
2250 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2251 | unsigned int len = tx_skb->len; | |
2252 | ||
2253 | if (len) { | |
2254 | struct sk_buff *skb = tx_skb->skb; | |
2255 | ||
2256 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, | |
2257 | tp->TxDescArray + entry); | |
2258 | if (skb) { | |
2259 | dev_kfree_skb(skb); | |
2260 | tx_skb->skb = NULL; | |
2261 | } | |
2262 | tp->stats.tx_dropped++; | |
2263 | } | |
2264 | } | |
2265 | tp->cur_tx = tp->dirty_tx = 0; | |
2266 | } | |
2267 | ||
c4028958 | 2268 | static void rtl8169_schedule_work(struct net_device *dev, work_func_t task) |
1da177e4 LT |
2269 | { |
2270 | struct rtl8169_private *tp = netdev_priv(dev); | |
2271 | ||
c4028958 | 2272 | PREPARE_DELAYED_WORK(&tp->task, task); |
1da177e4 LT |
2273 | schedule_delayed_work(&tp->task, 4); |
2274 | } | |
2275 | ||
2276 | static void rtl8169_wait_for_quiescence(struct net_device *dev) | |
2277 | { | |
2278 | struct rtl8169_private *tp = netdev_priv(dev); | |
2279 | void __iomem *ioaddr = tp->mmio_addr; | |
2280 | ||
2281 | synchronize_irq(dev->irq); | |
2282 | ||
2283 | /* Wait for any pending NAPI task to complete */ | |
bea3348e SH |
2284 | #ifdef CONFIG_R8169_NAPI |
2285 | napi_disable(&tp->napi); | |
2286 | #endif | |
1da177e4 LT |
2287 | |
2288 | rtl8169_irq_mask_and_ack(ioaddr); | |
2289 | ||
bea3348e SH |
2290 | #ifdef CONFIG_R8169_NAPI |
2291 | napi_enable(&tp->napi); | |
2292 | #endif | |
1da177e4 LT |
2293 | } |
2294 | ||
c4028958 | 2295 | static void rtl8169_reinit_task(struct work_struct *work) |
1da177e4 | 2296 | { |
c4028958 DH |
2297 | struct rtl8169_private *tp = |
2298 | container_of(work, struct rtl8169_private, task.work); | |
2299 | struct net_device *dev = tp->dev; | |
1da177e4 LT |
2300 | int ret; |
2301 | ||
eb2a021c FR |
2302 | rtnl_lock(); |
2303 | ||
2304 | if (!netif_running(dev)) | |
2305 | goto out_unlock; | |
2306 | ||
2307 | rtl8169_wait_for_quiescence(dev); | |
2308 | rtl8169_close(dev); | |
1da177e4 LT |
2309 | |
2310 | ret = rtl8169_open(dev); | |
2311 | if (unlikely(ret < 0)) { | |
07d3f51f FR |
2312 | if (net_ratelimit() && netif_msg_drv(tp)) { |
2313 | printk(PFX KERN_ERR "%s: reinit failure (status = %d)." | |
2314 | " Rescheduling.\n", dev->name, ret); | |
1da177e4 LT |
2315 | } |
2316 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2317 | } | |
eb2a021c FR |
2318 | |
2319 | out_unlock: | |
2320 | rtnl_unlock(); | |
1da177e4 LT |
2321 | } |
2322 | ||
c4028958 | 2323 | static void rtl8169_reset_task(struct work_struct *work) |
1da177e4 | 2324 | { |
c4028958 DH |
2325 | struct rtl8169_private *tp = |
2326 | container_of(work, struct rtl8169_private, task.work); | |
2327 | struct net_device *dev = tp->dev; | |
1da177e4 | 2328 | |
eb2a021c FR |
2329 | rtnl_lock(); |
2330 | ||
1da177e4 | 2331 | if (!netif_running(dev)) |
eb2a021c | 2332 | goto out_unlock; |
1da177e4 LT |
2333 | |
2334 | rtl8169_wait_for_quiescence(dev); | |
2335 | ||
bea3348e | 2336 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0); |
1da177e4 LT |
2337 | rtl8169_tx_clear(tp); |
2338 | ||
2339 | if (tp->dirty_rx == tp->cur_rx) { | |
2340 | rtl8169_init_ring_indexes(tp); | |
07ce4064 | 2341 | rtl_hw_start(dev); |
1da177e4 LT |
2342 | netif_wake_queue(dev); |
2343 | } else { | |
07d3f51f FR |
2344 | if (net_ratelimit() && netif_msg_intr(tp)) { |
2345 | printk(PFX KERN_EMERG "%s: Rx buffers shortage\n", | |
2346 | dev->name); | |
1da177e4 LT |
2347 | } |
2348 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2349 | } | |
eb2a021c FR |
2350 | |
2351 | out_unlock: | |
2352 | rtnl_unlock(); | |
1da177e4 LT |
2353 | } |
2354 | ||
2355 | static void rtl8169_tx_timeout(struct net_device *dev) | |
2356 | { | |
2357 | struct rtl8169_private *tp = netdev_priv(dev); | |
2358 | ||
2359 | rtl8169_hw_reset(tp->mmio_addr); | |
2360 | ||
2361 | /* Let's wait a bit while any (async) irq lands on */ | |
2362 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2363 | } | |
2364 | ||
2365 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, | |
2366 | u32 opts1) | |
2367 | { | |
2368 | struct skb_shared_info *info = skb_shinfo(skb); | |
2369 | unsigned int cur_frag, entry; | |
a6343afb | 2370 | struct TxDesc * uninitialized_var(txd); |
1da177e4 LT |
2371 | |
2372 | entry = tp->cur_tx; | |
2373 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { | |
2374 | skb_frag_t *frag = info->frags + cur_frag; | |
2375 | dma_addr_t mapping; | |
2376 | u32 status, len; | |
2377 | void *addr; | |
2378 | ||
2379 | entry = (entry + 1) % NUM_TX_DESC; | |
2380 | ||
2381 | txd = tp->TxDescArray + entry; | |
2382 | len = frag->size; | |
2383 | addr = ((void *) page_address(frag->page)) + frag->page_offset; | |
2384 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); | |
2385 | ||
2386 | /* anti gcc 2.95.3 bugware (sic) */ | |
2387 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2388 | ||
2389 | txd->opts1 = cpu_to_le32(status); | |
2390 | txd->addr = cpu_to_le64(mapping); | |
2391 | ||
2392 | tp->tx_skb[entry].len = len; | |
2393 | } | |
2394 | ||
2395 | if (cur_frag) { | |
2396 | tp->tx_skb[entry].skb = skb; | |
2397 | txd->opts1 |= cpu_to_le32(LastFrag); | |
2398 | } | |
2399 | ||
2400 | return cur_frag; | |
2401 | } | |
2402 | ||
2403 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) | |
2404 | { | |
2405 | if (dev->features & NETIF_F_TSO) { | |
7967168c | 2406 | u32 mss = skb_shinfo(skb)->gso_size; |
1da177e4 LT |
2407 | |
2408 | if (mss) | |
2409 | return LargeSend | ((mss & MSSMask) << MSSShift); | |
2410 | } | |
84fa7933 | 2411 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
eddc9ec5 | 2412 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
2413 | |
2414 | if (ip->protocol == IPPROTO_TCP) | |
2415 | return IPCS | TCPCS; | |
2416 | else if (ip->protocol == IPPROTO_UDP) | |
2417 | return IPCS | UDPCS; | |
2418 | WARN_ON(1); /* we need a WARN() */ | |
2419 | } | |
2420 | return 0; | |
2421 | } | |
2422 | ||
2423 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2424 | { | |
2425 | struct rtl8169_private *tp = netdev_priv(dev); | |
2426 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; | |
2427 | struct TxDesc *txd = tp->TxDescArray + entry; | |
2428 | void __iomem *ioaddr = tp->mmio_addr; | |
2429 | dma_addr_t mapping; | |
2430 | u32 status, len; | |
2431 | u32 opts1; | |
188f4af0 | 2432 | int ret = NETDEV_TX_OK; |
5b0384f4 | 2433 | |
1da177e4 | 2434 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { |
b57b7e5a SH |
2435 | if (netif_msg_drv(tp)) { |
2436 | printk(KERN_ERR | |
2437 | "%s: BUG! Tx Ring full when queue awake!\n", | |
2438 | dev->name); | |
2439 | } | |
1da177e4 LT |
2440 | goto err_stop; |
2441 | } | |
2442 | ||
2443 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) | |
2444 | goto err_stop; | |
2445 | ||
2446 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); | |
2447 | ||
2448 | frags = rtl8169_xmit_frags(tp, skb, opts1); | |
2449 | if (frags) { | |
2450 | len = skb_headlen(skb); | |
2451 | opts1 |= FirstFrag; | |
2452 | } else { | |
2453 | len = skb->len; | |
2454 | ||
2455 | if (unlikely(len < ETH_ZLEN)) { | |
5b057c6b | 2456 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
2457 | goto err_update_stats; |
2458 | len = ETH_ZLEN; | |
2459 | } | |
2460 | ||
2461 | opts1 |= FirstFrag | LastFrag; | |
2462 | tp->tx_skb[entry].skb = skb; | |
2463 | } | |
2464 | ||
2465 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
2466 | ||
2467 | tp->tx_skb[entry].len = len; | |
2468 | txd->addr = cpu_to_le64(mapping); | |
2469 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); | |
2470 | ||
2471 | wmb(); | |
2472 | ||
2473 | /* anti gcc 2.95.3 bugware (sic) */ | |
2474 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2475 | txd->opts1 = cpu_to_le32(status); | |
2476 | ||
2477 | dev->trans_start = jiffies; | |
2478 | ||
2479 | tp->cur_tx += frags + 1; | |
2480 | ||
2481 | smp_wmb(); | |
2482 | ||
275391a4 | 2483 | RTL_W8(TxPoll, NPQ); /* set polling bit */ |
1da177e4 LT |
2484 | |
2485 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { | |
2486 | netif_stop_queue(dev); | |
2487 | smp_rmb(); | |
2488 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) | |
2489 | netif_wake_queue(dev); | |
2490 | } | |
2491 | ||
2492 | out: | |
2493 | return ret; | |
2494 | ||
2495 | err_stop: | |
2496 | netif_stop_queue(dev); | |
188f4af0 | 2497 | ret = NETDEV_TX_BUSY; |
1da177e4 LT |
2498 | err_update_stats: |
2499 | tp->stats.tx_dropped++; | |
2500 | goto out; | |
2501 | } | |
2502 | ||
2503 | static void rtl8169_pcierr_interrupt(struct net_device *dev) | |
2504 | { | |
2505 | struct rtl8169_private *tp = netdev_priv(dev); | |
2506 | struct pci_dev *pdev = tp->pci_dev; | |
2507 | void __iomem *ioaddr = tp->mmio_addr; | |
2508 | u16 pci_status, pci_cmd; | |
2509 | ||
2510 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); | |
2511 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
2512 | ||
b57b7e5a SH |
2513 | if (netif_msg_intr(tp)) { |
2514 | printk(KERN_ERR | |
2515 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", | |
2516 | dev->name, pci_cmd, pci_status); | |
2517 | } | |
1da177e4 LT |
2518 | |
2519 | /* | |
2520 | * The recovery sequence below admits a very elaborated explanation: | |
2521 | * - it seems to work; | |
d03902b8 FR |
2522 | * - I did not see what else could be done; |
2523 | * - it makes iop3xx happy. | |
1da177e4 LT |
2524 | * |
2525 | * Feel free to adjust to your needs. | |
2526 | */ | |
a27993f3 | 2527 | if (pdev->broken_parity_status) |
d03902b8 FR |
2528 | pci_cmd &= ~PCI_COMMAND_PARITY; |
2529 | else | |
2530 | pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; | |
2531 | ||
2532 | pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); | |
1da177e4 LT |
2533 | |
2534 | pci_write_config_word(pdev, PCI_STATUS, | |
2535 | pci_status & (PCI_STATUS_DETECTED_PARITY | | |
2536 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | | |
2537 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); | |
2538 | ||
2539 | /* The infamous DAC f*ckup only happens at boot time */ | |
2540 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { | |
b57b7e5a SH |
2541 | if (netif_msg_intr(tp)) |
2542 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); | |
1da177e4 LT |
2543 | tp->cp_cmd &= ~PCIDAC; |
2544 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2545 | dev->features &= ~NETIF_F_HIGHDMA; | |
1da177e4 LT |
2546 | } |
2547 | ||
2548 | rtl8169_hw_reset(ioaddr); | |
d03902b8 FR |
2549 | |
2550 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
1da177e4 LT |
2551 | } |
2552 | ||
07d3f51f FR |
2553 | static void rtl8169_tx_interrupt(struct net_device *dev, |
2554 | struct rtl8169_private *tp, | |
2555 | void __iomem *ioaddr) | |
1da177e4 LT |
2556 | { |
2557 | unsigned int dirty_tx, tx_left; | |
2558 | ||
1da177e4 LT |
2559 | dirty_tx = tp->dirty_tx; |
2560 | smp_rmb(); | |
2561 | tx_left = tp->cur_tx - dirty_tx; | |
2562 | ||
2563 | while (tx_left > 0) { | |
2564 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
2565 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2566 | u32 len = tx_skb->len; | |
2567 | u32 status; | |
2568 | ||
2569 | rmb(); | |
2570 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); | |
2571 | if (status & DescOwn) | |
2572 | break; | |
2573 | ||
2574 | tp->stats.tx_bytes += len; | |
2575 | tp->stats.tx_packets++; | |
2576 | ||
2577 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); | |
2578 | ||
2579 | if (status & LastFrag) { | |
2580 | dev_kfree_skb_irq(tx_skb->skb); | |
2581 | tx_skb->skb = NULL; | |
2582 | } | |
2583 | dirty_tx++; | |
2584 | tx_left--; | |
2585 | } | |
2586 | ||
2587 | if (tp->dirty_tx != dirty_tx) { | |
2588 | tp->dirty_tx = dirty_tx; | |
2589 | smp_wmb(); | |
2590 | if (netif_queue_stopped(dev) && | |
2591 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { | |
2592 | netif_wake_queue(dev); | |
2593 | } | |
d78ae2dc FR |
2594 | /* |
2595 | * 8168 hack: TxPoll requests are lost when the Tx packets are | |
2596 | * too close. Let's kick an extra TxPoll request when a burst | |
2597 | * of start_xmit activity is detected (if it is not detected, | |
2598 | * it is slow enough). -- FR | |
2599 | */ | |
2600 | smp_rmb(); | |
2601 | if (tp->cur_tx != dirty_tx) | |
2602 | RTL_W8(TxPoll, NPQ); | |
1da177e4 LT |
2603 | } |
2604 | } | |
2605 | ||
126fa4b9 FR |
2606 | static inline int rtl8169_fragmented_frame(u32 status) |
2607 | { | |
2608 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); | |
2609 | } | |
2610 | ||
1da177e4 LT |
2611 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
2612 | { | |
2613 | u32 opts1 = le32_to_cpu(desc->opts1); | |
2614 | u32 status = opts1 & RxProtoMask; | |
2615 | ||
2616 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || | |
2617 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || | |
2618 | ((status == RxProtoIP) && !(opts1 & IPFail))) | |
2619 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2620 | else | |
2621 | skb->ip_summed = CHECKSUM_NONE; | |
2622 | } | |
2623 | ||
07d3f51f FR |
2624 | static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff, |
2625 | struct rtl8169_private *tp, int pkt_size, | |
2626 | dma_addr_t addr) | |
1da177e4 | 2627 | { |
b449655f SH |
2628 | struct sk_buff *skb; |
2629 | bool done = false; | |
1da177e4 | 2630 | |
b449655f SH |
2631 | if (pkt_size >= rx_copybreak) |
2632 | goto out; | |
1da177e4 | 2633 | |
07d3f51f | 2634 | skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN); |
b449655f SH |
2635 | if (!skb) |
2636 | goto out; | |
2637 | ||
07d3f51f FR |
2638 | pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size, |
2639 | PCI_DMA_FROMDEVICE); | |
86402234 | 2640 | skb_reserve(skb, NET_IP_ALIGN); |
b449655f SH |
2641 | skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size); |
2642 | *sk_buff = skb; | |
2643 | done = true; | |
2644 | out: | |
2645 | return done; | |
1da177e4 LT |
2646 | } |
2647 | ||
07d3f51f FR |
2648 | static int rtl8169_rx_interrupt(struct net_device *dev, |
2649 | struct rtl8169_private *tp, | |
bea3348e | 2650 | void __iomem *ioaddr, u32 budget) |
1da177e4 LT |
2651 | { |
2652 | unsigned int cur_rx, rx_left; | |
2653 | unsigned int delta, count; | |
2654 | ||
1da177e4 LT |
2655 | cur_rx = tp->cur_rx; |
2656 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
bea3348e | 2657 | rx_left = rtl8169_rx_quota(rx_left, budget); |
1da177e4 | 2658 | |
4dcb7d33 | 2659 | for (; rx_left > 0; rx_left--, cur_rx++) { |
1da177e4 | 2660 | unsigned int entry = cur_rx % NUM_RX_DESC; |
126fa4b9 | 2661 | struct RxDesc *desc = tp->RxDescArray + entry; |
1da177e4 LT |
2662 | u32 status; |
2663 | ||
2664 | rmb(); | |
126fa4b9 | 2665 | status = le32_to_cpu(desc->opts1); |
1da177e4 LT |
2666 | |
2667 | if (status & DescOwn) | |
2668 | break; | |
4dcb7d33 | 2669 | if (unlikely(status & RxRES)) { |
b57b7e5a SH |
2670 | if (netif_msg_rx_err(tp)) { |
2671 | printk(KERN_INFO | |
2672 | "%s: Rx ERROR. status = %08x\n", | |
2673 | dev->name, status); | |
2674 | } | |
1da177e4 LT |
2675 | tp->stats.rx_errors++; |
2676 | if (status & (RxRWT | RxRUNT)) | |
2677 | tp->stats.rx_length_errors++; | |
2678 | if (status & RxCRC) | |
2679 | tp->stats.rx_crc_errors++; | |
9dccf611 FR |
2680 | if (status & RxFOVF) { |
2681 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2682 | tp->stats.rx_fifo_errors++; | |
2683 | } | |
126fa4b9 | 2684 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
1da177e4 | 2685 | } else { |
1da177e4 | 2686 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
b449655f | 2687 | dma_addr_t addr = le64_to_cpu(desc->addr); |
1da177e4 | 2688 | int pkt_size = (status & 0x00001FFF) - 4; |
b449655f | 2689 | struct pci_dev *pdev = tp->pci_dev; |
1da177e4 | 2690 | |
126fa4b9 FR |
2691 | /* |
2692 | * The driver does not support incoming fragmented | |
2693 | * frames. They are seen as a symptom of over-mtu | |
2694 | * sized frames. | |
2695 | */ | |
2696 | if (unlikely(rtl8169_fragmented_frame(status))) { | |
2697 | tp->stats.rx_dropped++; | |
2698 | tp->stats.rx_length_errors++; | |
2699 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
4dcb7d33 | 2700 | continue; |
126fa4b9 FR |
2701 | } |
2702 | ||
1da177e4 | 2703 | rtl8169_rx_csum(skb, desc); |
bcf0bf90 | 2704 | |
07d3f51f | 2705 | if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) { |
b449655f SH |
2706 | pci_dma_sync_single_for_device(pdev, addr, |
2707 | pkt_size, PCI_DMA_FROMDEVICE); | |
2708 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
2709 | } else { | |
2710 | pci_unmap_single(pdev, addr, pkt_size, | |
2711 | PCI_DMA_FROMDEVICE); | |
1da177e4 LT |
2712 | tp->Rx_skbuff[entry] = NULL; |
2713 | } | |
2714 | ||
1da177e4 LT |
2715 | skb_put(skb, pkt_size); |
2716 | skb->protocol = eth_type_trans(skb, dev); | |
2717 | ||
2718 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) | |
2719 | rtl8169_rx_skb(skb); | |
2720 | ||
2721 | dev->last_rx = jiffies; | |
2722 | tp->stats.rx_bytes += pkt_size; | |
2723 | tp->stats.rx_packets++; | |
2724 | } | |
6dccd16b FR |
2725 | |
2726 | /* Work around for AMD plateform. */ | |
2727 | if ((desc->opts2 & 0xfffe000) && | |
2728 | (tp->mac_version == RTL_GIGA_MAC_VER_05)) { | |
2729 | desc->opts2 = 0; | |
2730 | cur_rx++; | |
2731 | } | |
1da177e4 LT |
2732 | } |
2733 | ||
2734 | count = cur_rx - tp->cur_rx; | |
2735 | tp->cur_rx = cur_rx; | |
2736 | ||
2737 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
b57b7e5a | 2738 | if (!delta && count && netif_msg_intr(tp)) |
1da177e4 LT |
2739 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
2740 | tp->dirty_rx += delta; | |
2741 | ||
2742 | /* | |
2743 | * FIXME: until there is periodic timer to try and refill the ring, | |
2744 | * a temporary shortage may definitely kill the Rx process. | |
2745 | * - disable the asic to try and avoid an overflow and kick it again | |
2746 | * after refill ? | |
2747 | * - how do others driver handle this condition (Uh oh...). | |
2748 | */ | |
b57b7e5a | 2749 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
1da177e4 LT |
2750 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
2751 | ||
2752 | return count; | |
2753 | } | |
2754 | ||
07d3f51f | 2755 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance) |
1da177e4 | 2756 | { |
07d3f51f | 2757 | struct net_device *dev = dev_instance; |
1da177e4 LT |
2758 | struct rtl8169_private *tp = netdev_priv(dev); |
2759 | int boguscnt = max_interrupt_work; | |
2760 | void __iomem *ioaddr = tp->mmio_addr; | |
2761 | int status; | |
2762 | int handled = 0; | |
2763 | ||
2764 | do { | |
2765 | status = RTL_R16(IntrStatus); | |
2766 | ||
2767 | /* hotplug/major error/no more work/shared irq */ | |
2768 | if ((status == 0xFFFF) || !status) | |
2769 | break; | |
2770 | ||
2771 | handled = 1; | |
2772 | ||
2773 | if (unlikely(!netif_running(dev))) { | |
2774 | rtl8169_asic_down(ioaddr); | |
2775 | goto out; | |
2776 | } | |
2777 | ||
2778 | status &= tp->intr_mask; | |
2779 | RTL_W16(IntrStatus, | |
2780 | (status & RxFIFOOver) ? (status | RxOverflow) : status); | |
2781 | ||
0e485150 FR |
2782 | if (!(status & tp->intr_event)) |
2783 | break; | |
2784 | ||
2785 | /* Work around for rx fifo overflow */ | |
2786 | if (unlikely(status & RxFIFOOver) && | |
2787 | (tp->mac_version == RTL_GIGA_MAC_VER_11)) { | |
2788 | netif_stop_queue(dev); | |
2789 | rtl8169_tx_timeout(dev); | |
1da177e4 | 2790 | break; |
0e485150 | 2791 | } |
1da177e4 LT |
2792 | |
2793 | if (unlikely(status & SYSErr)) { | |
2794 | rtl8169_pcierr_interrupt(dev); | |
2795 | break; | |
2796 | } | |
2797 | ||
2798 | if (status & LinkChg) | |
2799 | rtl8169_check_link_status(dev, tp, ioaddr); | |
2800 | ||
2801 | #ifdef CONFIG_R8169_NAPI | |
313b0305 FR |
2802 | if (status & tp->napi_event) { |
2803 | RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event); | |
2804 | tp->intr_mask = ~tp->napi_event; | |
2805 | ||
bea3348e SH |
2806 | if (likely(netif_rx_schedule_prep(dev, &tp->napi))) |
2807 | __netif_rx_schedule(dev, &tp->napi); | |
313b0305 FR |
2808 | else if (netif_msg_intr(tp)) { |
2809 | printk(KERN_INFO "%s: interrupt %04x in poll\n", | |
2810 | dev->name, status); | |
2811 | } | |
1da177e4 LT |
2812 | } |
2813 | break; | |
2814 | #else | |
2815 | /* Rx interrupt */ | |
07d3f51f | 2816 | if (status & (RxOK | RxOverflow | RxFIFOOver)) |
bea3348e | 2817 | rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0); |
07d3f51f | 2818 | |
1da177e4 LT |
2819 | /* Tx interrupt */ |
2820 | if (status & (TxOK | TxErr)) | |
2821 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2822 | #endif | |
2823 | ||
2824 | boguscnt--; | |
2825 | } while (boguscnt > 0); | |
2826 | ||
2827 | if (boguscnt <= 0) { | |
7c8b2eb4 | 2828 | if (netif_msg_intr(tp) && net_ratelimit() ) { |
b57b7e5a SH |
2829 | printk(KERN_WARNING |
2830 | "%s: Too much work at interrupt!\n", dev->name); | |
2831 | } | |
1da177e4 LT |
2832 | /* Clear all interrupt sources. */ |
2833 | RTL_W16(IntrStatus, 0xffff); | |
2834 | } | |
2835 | out: | |
2836 | return IRQ_RETVAL(handled); | |
2837 | } | |
2838 | ||
2839 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 2840 | static int rtl8169_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2841 | { |
bea3348e SH |
2842 | struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi); |
2843 | struct net_device *dev = tp->dev; | |
1da177e4 | 2844 | void __iomem *ioaddr = tp->mmio_addr; |
bea3348e | 2845 | int work_done; |
1da177e4 | 2846 | |
bea3348e | 2847 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget); |
1da177e4 LT |
2848 | rtl8169_tx_interrupt(dev, tp, ioaddr); |
2849 | ||
bea3348e SH |
2850 | if (work_done < budget) { |
2851 | netif_rx_complete(dev, napi); | |
1da177e4 LT |
2852 | tp->intr_mask = 0xffff; |
2853 | /* | |
2854 | * 20040426: the barrier is not strictly required but the | |
2855 | * behavior of the irq handler could be less predictable | |
2856 | * without it. Btw, the lack of flush for the posted pci | |
2857 | * write is safe - FR | |
2858 | */ | |
2859 | smp_wmb(); | |
0e485150 | 2860 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
2861 | } |
2862 | ||
bea3348e | 2863 | return work_done; |
1da177e4 LT |
2864 | } |
2865 | #endif | |
2866 | ||
2867 | static void rtl8169_down(struct net_device *dev) | |
2868 | { | |
2869 | struct rtl8169_private *tp = netdev_priv(dev); | |
2870 | void __iomem *ioaddr = tp->mmio_addr; | |
2871 | unsigned int poll_locked = 0; | |
733b736c | 2872 | unsigned int intrmask; |
1da177e4 LT |
2873 | |
2874 | rtl8169_delete_timer(dev); | |
2875 | ||
2876 | netif_stop_queue(dev); | |
2877 | ||
1da177e4 LT |
2878 | core_down: |
2879 | spin_lock_irq(&tp->lock); | |
2880 | ||
2881 | rtl8169_asic_down(ioaddr); | |
2882 | ||
2883 | /* Update the error counts. */ | |
2884 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2885 | RTL_W32(RxMissed, 0); | |
2886 | ||
2887 | spin_unlock_irq(&tp->lock); | |
2888 | ||
2889 | synchronize_irq(dev->irq); | |
2890 | ||
2891 | if (!poll_locked) { | |
bea3348e | 2892 | napi_disable(&tp->napi); |
1da177e4 LT |
2893 | poll_locked++; |
2894 | } | |
2895 | ||
2896 | /* Give a racing hard_start_xmit a few cycles to complete. */ | |
fbd568a3 | 2897 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
1da177e4 LT |
2898 | |
2899 | /* | |
2900 | * And now for the 50k$ question: are IRQ disabled or not ? | |
2901 | * | |
2902 | * Two paths lead here: | |
2903 | * 1) dev->close | |
2904 | * -> netif_running() is available to sync the current code and the | |
2905 | * IRQ handler. See rtl8169_interrupt for details. | |
2906 | * 2) dev->change_mtu | |
2907 | * -> rtl8169_poll can not be issued again and re-enable the | |
2908 | * interruptions. Let's simply issue the IRQ down sequence again. | |
733b736c AP |
2909 | * |
2910 | * No loop if hotpluged or major error (0xffff). | |
1da177e4 | 2911 | */ |
733b736c AP |
2912 | intrmask = RTL_R16(IntrMask); |
2913 | if (intrmask && (intrmask != 0xffff)) | |
1da177e4 LT |
2914 | goto core_down; |
2915 | ||
2916 | rtl8169_tx_clear(tp); | |
2917 | ||
2918 | rtl8169_rx_clear(tp); | |
2919 | } | |
2920 | ||
2921 | static int rtl8169_close(struct net_device *dev) | |
2922 | { | |
2923 | struct rtl8169_private *tp = netdev_priv(dev); | |
2924 | struct pci_dev *pdev = tp->pci_dev; | |
2925 | ||
2926 | rtl8169_down(dev); | |
2927 | ||
2928 | free_irq(dev->irq, dev); | |
2929 | ||
1da177e4 LT |
2930 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
2931 | tp->RxPhyAddr); | |
2932 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
2933 | tp->TxPhyAddr); | |
2934 | tp->TxDescArray = NULL; | |
2935 | tp->RxDescArray = NULL; | |
2936 | ||
2937 | return 0; | |
2938 | } | |
2939 | ||
07ce4064 | 2940 | static void rtl_set_rx_mode(struct net_device *dev) |
1da177e4 LT |
2941 | { |
2942 | struct rtl8169_private *tp = netdev_priv(dev); | |
2943 | void __iomem *ioaddr = tp->mmio_addr; | |
2944 | unsigned long flags; | |
2945 | u32 mc_filter[2]; /* Multicast hash filter */ | |
07d3f51f | 2946 | int rx_mode; |
1da177e4 LT |
2947 | u32 tmp = 0; |
2948 | ||
2949 | if (dev->flags & IFF_PROMISC) { | |
2950 | /* Unconditionally log net taps. */ | |
b57b7e5a SH |
2951 | if (netif_msg_link(tp)) { |
2952 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
2953 | dev->name); | |
2954 | } | |
1da177e4 LT |
2955 | rx_mode = |
2956 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
2957 | AcceptAllPhys; | |
2958 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2959 | } else if ((dev->mc_count > multicast_filter_limit) | |
2960 | || (dev->flags & IFF_ALLMULTI)) { | |
2961 | /* Too many to filter perfectly -- accept all multicasts. */ | |
2962 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
2963 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2964 | } else { | |
2965 | struct dev_mc_list *mclist; | |
07d3f51f FR |
2966 | unsigned int i; |
2967 | ||
1da177e4 LT |
2968 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
2969 | mc_filter[1] = mc_filter[0] = 0; | |
2970 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2971 | i++, mclist = mclist->next) { | |
2972 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
2973 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
2974 | rx_mode |= AcceptMulticast; | |
2975 | } | |
2976 | } | |
2977 | ||
2978 | spin_lock_irqsave(&tp->lock, flags); | |
2979 | ||
2980 | tmp = rtl8169_rx_config | rx_mode | | |
2981 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
2982 | ||
bcf0bf90 FR |
2983 | if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || |
2984 | (tp->mac_version == RTL_GIGA_MAC_VER_12) || | |
2985 | (tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
2986 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
2987 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
2988 | mc_filter[0] = 0xffffffff; | |
2989 | mc_filter[1] = 0xffffffff; | |
2990 | } | |
2991 | ||
1da177e4 LT |
2992 | RTL_W32(MAR0 + 0, mc_filter[0]); |
2993 | RTL_W32(MAR0 + 4, mc_filter[1]); | |
2994 | ||
57a9f236 FR |
2995 | RTL_W32(RxConfig, tmp); |
2996 | ||
1da177e4 LT |
2997 | spin_unlock_irqrestore(&tp->lock, flags); |
2998 | } | |
2999 | ||
3000 | /** | |
3001 | * rtl8169_get_stats - Get rtl8169 read/write statistics | |
3002 | * @dev: The Ethernet Device to get statistics for | |
3003 | * | |
3004 | * Get TX/RX statistics for rtl8169 | |
3005 | */ | |
3006 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) | |
3007 | { | |
3008 | struct rtl8169_private *tp = netdev_priv(dev); | |
3009 | void __iomem *ioaddr = tp->mmio_addr; | |
3010 | unsigned long flags; | |
3011 | ||
3012 | if (netif_running(dev)) { | |
3013 | spin_lock_irqsave(&tp->lock, flags); | |
3014 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
3015 | RTL_W32(RxMissed, 0); | |
3016 | spin_unlock_irqrestore(&tp->lock, flags); | |
3017 | } | |
5b0384f4 | 3018 | |
1da177e4 LT |
3019 | return &tp->stats; |
3020 | } | |
3021 | ||
5d06a99f FR |
3022 | #ifdef CONFIG_PM |
3023 | ||
3024 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) | |
3025 | { | |
3026 | struct net_device *dev = pci_get_drvdata(pdev); | |
3027 | struct rtl8169_private *tp = netdev_priv(dev); | |
3028 | void __iomem *ioaddr = tp->mmio_addr; | |
3029 | ||
3030 | if (!netif_running(dev)) | |
1371fa6d | 3031 | goto out_pci_suspend; |
5d06a99f FR |
3032 | |
3033 | netif_device_detach(dev); | |
3034 | netif_stop_queue(dev); | |
3035 | ||
3036 | spin_lock_irq(&tp->lock); | |
3037 | ||
3038 | rtl8169_asic_down(ioaddr); | |
3039 | ||
3040 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
3041 | RTL_W32(RxMissed, 0); | |
3042 | ||
3043 | spin_unlock_irq(&tp->lock); | |
3044 | ||
1371fa6d | 3045 | out_pci_suspend: |
5d06a99f | 3046 | pci_save_state(pdev); |
61a4dcc2 | 3047 | pci_enable_wake(pdev, pci_choose_state(pdev, state), tp->wol_enabled); |
5d06a99f | 3048 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
1371fa6d | 3049 | |
5d06a99f FR |
3050 | return 0; |
3051 | } | |
3052 | ||
3053 | static int rtl8169_resume(struct pci_dev *pdev) | |
3054 | { | |
3055 | struct net_device *dev = pci_get_drvdata(pdev); | |
3056 | ||
1371fa6d FR |
3057 | pci_set_power_state(pdev, PCI_D0); |
3058 | pci_restore_state(pdev); | |
3059 | pci_enable_wake(pdev, PCI_D0, 0); | |
3060 | ||
5d06a99f FR |
3061 | if (!netif_running(dev)) |
3062 | goto out; | |
3063 | ||
3064 | netif_device_attach(dev); | |
3065 | ||
5d06a99f FR |
3066 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
3067 | out: | |
3068 | return 0; | |
3069 | } | |
3070 | ||
3071 | #endif /* CONFIG_PM */ | |
3072 | ||
1da177e4 LT |
3073 | static struct pci_driver rtl8169_pci_driver = { |
3074 | .name = MODULENAME, | |
3075 | .id_table = rtl8169_pci_tbl, | |
3076 | .probe = rtl8169_init_one, | |
3077 | .remove = __devexit_p(rtl8169_remove_one), | |
3078 | #ifdef CONFIG_PM | |
3079 | .suspend = rtl8169_suspend, | |
3080 | .resume = rtl8169_resume, | |
3081 | #endif | |
3082 | }; | |
3083 | ||
07d3f51f | 3084 | static int __init rtl8169_init_module(void) |
1da177e4 | 3085 | { |
29917620 | 3086 | return pci_register_driver(&rtl8169_pci_driver); |
1da177e4 LT |
3087 | } |
3088 | ||
07d3f51f | 3089 | static void __exit rtl8169_cleanup_module(void) |
1da177e4 LT |
3090 | { |
3091 | pci_unregister_driver(&rtl8169_pci_driver); | |
3092 | } | |
3093 | ||
3094 | module_init(rtl8169_init_module); | |
3095 | module_exit(rtl8169_cleanup_module); |