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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 | } | |
06fa7358 JP |
47 | #define dprintk(fmt, args...) \ |
48 | do { printk(KERN_DEBUG PFX fmt, ## args); } while (0) | |
1da177e4 LT |
49 | #else |
50 | #define assert(expr) do {} while (0) | |
51 | #define dprintk(fmt, args...) do {} while (0) | |
52 | #endif /* RTL8169_DEBUG */ | |
53 | ||
b57b7e5a | 54 | #define R8169_MSG_DEFAULT \ |
f0e837d9 | 55 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) |
b57b7e5a | 56 | |
1da177e4 LT |
57 | #define TX_BUFFS_AVAIL(tp) \ |
58 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) | |
59 | ||
60 | #ifdef CONFIG_R8169_NAPI | |
61 | #define rtl8169_rx_skb netif_receive_skb | |
0b50f81d | 62 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb |
1da177e4 LT |
63 | #define rtl8169_rx_quota(count, quota) min(count, quota) |
64 | #else | |
65 | #define rtl8169_rx_skb netif_rx | |
0b50f81d | 66 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx |
1da177e4 LT |
67 | #define rtl8169_rx_quota(count, quota) count |
68 | #endif | |
69 | ||
1da177e4 | 70 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
f71e1309 | 71 | static const int max_interrupt_work = 20; |
1da177e4 LT |
72 | |
73 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
74 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
f71e1309 | 75 | static const int multicast_filter_limit = 32; |
1da177e4 LT |
76 | |
77 | /* MAC address length */ | |
78 | #define MAC_ADDR_LEN 6 | |
79 | ||
80 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ | |
81 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
82 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
07d3f51f | 83 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ |
1da177e4 LT |
84 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ |
85 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ | |
86 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ | |
87 | ||
88 | #define R8169_REGS_SIZE 256 | |
89 | #define R8169_NAPI_WEIGHT 64 | |
90 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ | |
91 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ | |
92 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ | |
93 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | |
94 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
95 | ||
96 | #define RTL8169_TX_TIMEOUT (6*HZ) | |
97 | #define RTL8169_PHY_TIMEOUT (10*HZ) | |
98 | ||
99 | /* write/read MMIO register */ | |
100 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) | |
101 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) | |
102 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) | |
103 | #define RTL_R8(reg) readb (ioaddr + (reg)) | |
104 | #define RTL_R16(reg) readw (ioaddr + (reg)) | |
105 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) | |
106 | ||
107 | enum mac_version { | |
ba6eb6ee FR |
108 | RTL_GIGA_MAC_VER_01 = 0x01, // 8169 |
109 | RTL_GIGA_MAC_VER_02 = 0x02, // 8169S | |
110 | RTL_GIGA_MAC_VER_03 = 0x03, // 8110S | |
111 | RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB | |
112 | RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd | |
6dccd16b | 113 | RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe |
2dd99530 FR |
114 | RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb |
115 | RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be 8168Bf | |
cdf1a608 FR |
116 | RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb 8101Ec |
117 | RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 | |
118 | RTL_GIGA_MAC_VER_15 = 0x0f // 8101 | |
1da177e4 LT |
119 | }; |
120 | ||
121 | enum phy_version { | |
122 | RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
123 | RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
124 | RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
125 | RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ | |
126 | RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ | |
127 | RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ | |
128 | }; | |
129 | ||
1da177e4 LT |
130 | #define _R(NAME,MAC,MASK) \ |
131 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } | |
132 | ||
3c6bee1d | 133 | static const struct { |
1da177e4 LT |
134 | const char *name; |
135 | u8 mac_version; | |
136 | u32 RxConfigMask; /* Clears the bits supported by this chip */ | |
137 | } rtl_chip_info[] = { | |
ba6eb6ee FR |
138 | _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169 |
139 | _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S | |
140 | _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S | |
141 | _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB | |
142 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd | |
6dccd16b | 143 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe |
bcf0bf90 FR |
144 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E |
145 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E | |
146 | _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 | |
147 | _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 | |
148 | _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880) // PCI-E 8139 | |
1da177e4 LT |
149 | }; |
150 | #undef _R | |
151 | ||
bcf0bf90 FR |
152 | enum cfg_version { |
153 | RTL_CFG_0 = 0x00, | |
154 | RTL_CFG_1, | |
155 | RTL_CFG_2 | |
156 | }; | |
157 | ||
07ce4064 FR |
158 | static void rtl_hw_start_8169(struct net_device *); |
159 | static void rtl_hw_start_8168(struct net_device *); | |
160 | static void rtl_hw_start_8101(struct net_device *); | |
161 | ||
1da177e4 | 162 | static struct pci_device_id rtl8169_pci_tbl[] = { |
bcf0bf90 | 163 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, |
d2eed8cf | 164 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, |
d81bf551 | 165 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, |
07ce4064 | 166 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, |
bcf0bf90 FR |
167 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, |
168 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, | |
73f5e28b | 169 | { PCI_DEVICE(0x1259, 0xc107), 0, 0, RTL_CFG_0 }, |
bcf0bf90 FR |
170 | { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, |
171 | { PCI_VENDOR_ID_LINKSYS, 0x1032, | |
172 | PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, | |
1da177e4 LT |
173 | {0,}, |
174 | }; | |
175 | ||
176 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); | |
177 | ||
178 | static int rx_copybreak = 200; | |
179 | static int use_dac; | |
b57b7e5a SH |
180 | static struct { |
181 | u32 msg_enable; | |
182 | } debug = { -1 }; | |
1da177e4 | 183 | |
07d3f51f FR |
184 | enum rtl_registers { |
185 | MAC0 = 0, /* Ethernet hardware address. */ | |
773d2021 | 186 | MAC4 = 4, |
07d3f51f FR |
187 | MAR0 = 8, /* Multicast filter. */ |
188 | CounterAddrLow = 0x10, | |
189 | CounterAddrHigh = 0x14, | |
190 | TxDescStartAddrLow = 0x20, | |
191 | TxDescStartAddrHigh = 0x24, | |
192 | TxHDescStartAddrLow = 0x28, | |
193 | TxHDescStartAddrHigh = 0x2c, | |
194 | FLASH = 0x30, | |
195 | ERSR = 0x36, | |
196 | ChipCmd = 0x37, | |
197 | TxPoll = 0x38, | |
198 | IntrMask = 0x3c, | |
199 | IntrStatus = 0x3e, | |
200 | TxConfig = 0x40, | |
201 | RxConfig = 0x44, | |
202 | RxMissed = 0x4c, | |
203 | Cfg9346 = 0x50, | |
204 | Config0 = 0x51, | |
205 | Config1 = 0x52, | |
206 | Config2 = 0x53, | |
207 | Config3 = 0x54, | |
208 | Config4 = 0x55, | |
209 | Config5 = 0x56, | |
210 | MultiIntr = 0x5c, | |
211 | PHYAR = 0x60, | |
212 | TBICSR = 0x64, | |
213 | TBI_ANAR = 0x68, | |
214 | TBI_LPAR = 0x6a, | |
215 | PHYstatus = 0x6c, | |
216 | RxMaxSize = 0xda, | |
217 | CPlusCmd = 0xe0, | |
218 | IntrMitigate = 0xe2, | |
219 | RxDescAddrLow = 0xe4, | |
220 | RxDescAddrHigh = 0xe8, | |
221 | EarlyTxThres = 0xec, | |
222 | FuncEvent = 0xf0, | |
223 | FuncEventMask = 0xf4, | |
224 | FuncPresetState = 0xf8, | |
225 | FuncForceEvent = 0xfc, | |
1da177e4 LT |
226 | }; |
227 | ||
07d3f51f | 228 | enum rtl_register_content { |
1da177e4 | 229 | /* InterruptStatusBits */ |
07d3f51f FR |
230 | SYSErr = 0x8000, |
231 | PCSTimeout = 0x4000, | |
232 | SWInt = 0x0100, | |
233 | TxDescUnavail = 0x0080, | |
234 | RxFIFOOver = 0x0040, | |
235 | LinkChg = 0x0020, | |
236 | RxOverflow = 0x0010, | |
237 | TxErr = 0x0008, | |
238 | TxOK = 0x0004, | |
239 | RxErr = 0x0002, | |
240 | RxOK = 0x0001, | |
1da177e4 LT |
241 | |
242 | /* RxStatusDesc */ | |
9dccf611 FR |
243 | RxFOVF = (1 << 23), |
244 | RxRWT = (1 << 22), | |
245 | RxRES = (1 << 21), | |
246 | RxRUNT = (1 << 20), | |
247 | RxCRC = (1 << 19), | |
1da177e4 LT |
248 | |
249 | /* ChipCmdBits */ | |
07d3f51f FR |
250 | CmdReset = 0x10, |
251 | CmdRxEnb = 0x08, | |
252 | CmdTxEnb = 0x04, | |
253 | RxBufEmpty = 0x01, | |
1da177e4 | 254 | |
275391a4 FR |
255 | /* TXPoll register p.5 */ |
256 | HPQ = 0x80, /* Poll cmd on the high prio queue */ | |
257 | NPQ = 0x40, /* Poll cmd on the low prio queue */ | |
258 | FSWInt = 0x01, /* Forced software interrupt */ | |
259 | ||
1da177e4 | 260 | /* Cfg9346Bits */ |
07d3f51f FR |
261 | Cfg9346_Lock = 0x00, |
262 | Cfg9346_Unlock = 0xc0, | |
1da177e4 LT |
263 | |
264 | /* rx_mode_bits */ | |
07d3f51f FR |
265 | AcceptErr = 0x20, |
266 | AcceptRunt = 0x10, | |
267 | AcceptBroadcast = 0x08, | |
268 | AcceptMulticast = 0x04, | |
269 | AcceptMyPhys = 0x02, | |
270 | AcceptAllPhys = 0x01, | |
1da177e4 LT |
271 | |
272 | /* RxConfigBits */ | |
07d3f51f FR |
273 | RxCfgFIFOShift = 13, |
274 | RxCfgDMAShift = 8, | |
1da177e4 LT |
275 | |
276 | /* TxConfigBits */ | |
277 | TxInterFrameGapShift = 24, | |
278 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
279 | ||
5d06a99f | 280 | /* Config1 register p.24 */ |
fbac58fc | 281 | MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */ |
5d06a99f FR |
282 | PMEnable = (1 << 0), /* Power Management Enable */ |
283 | ||
6dccd16b FR |
284 | /* Config2 register p. 25 */ |
285 | PCI_Clock_66MHz = 0x01, | |
286 | PCI_Clock_33MHz = 0x00, | |
287 | ||
61a4dcc2 FR |
288 | /* Config3 register p.25 */ |
289 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
290 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
291 | ||
5d06a99f | 292 | /* Config5 register p.27 */ |
61a4dcc2 FR |
293 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ |
294 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
295 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
296 | LanWake = (1 << 1), /* LanWake enable/disable */ | |
5d06a99f FR |
297 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ |
298 | ||
1da177e4 LT |
299 | /* TBICSR p.28 */ |
300 | TBIReset = 0x80000000, | |
301 | TBILoopback = 0x40000000, | |
302 | TBINwEnable = 0x20000000, | |
303 | TBINwRestart = 0x10000000, | |
304 | TBILinkOk = 0x02000000, | |
305 | TBINwComplete = 0x01000000, | |
306 | ||
307 | /* CPlusCmd p.31 */ | |
0e485150 | 308 | PktCntrDisable = (1 << 7), // 8168 |
1da177e4 LT |
309 | RxVlan = (1 << 6), |
310 | RxChkSum = (1 << 5), | |
311 | PCIDAC = (1 << 4), | |
312 | PCIMulRW = (1 << 3), | |
0e485150 FR |
313 | INTT_0 = 0x0000, // 8168 |
314 | INTT_1 = 0x0001, // 8168 | |
315 | INTT_2 = 0x0002, // 8168 | |
316 | INTT_3 = 0x0003, // 8168 | |
1da177e4 LT |
317 | |
318 | /* rtl8169_PHYstatus */ | |
07d3f51f FR |
319 | TBI_Enable = 0x80, |
320 | TxFlowCtrl = 0x40, | |
321 | RxFlowCtrl = 0x20, | |
322 | _1000bpsF = 0x10, | |
323 | _100bps = 0x08, | |
324 | _10bps = 0x04, | |
325 | LinkStatus = 0x02, | |
326 | FullDup = 0x01, | |
1da177e4 | 327 | |
1da177e4 | 328 | /* _TBICSRBit */ |
07d3f51f | 329 | TBILinkOK = 0x02000000, |
d4a3a0fc SH |
330 | |
331 | /* DumpCounterCommand */ | |
07d3f51f | 332 | CounterDump = 0x8, |
1da177e4 LT |
333 | }; |
334 | ||
07d3f51f | 335 | enum desc_status_bit { |
1da177e4 LT |
336 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ |
337 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
338 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
339 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
340 | ||
341 | /* Tx private */ | |
342 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ | |
343 | MSSShift = 16, /* MSS value position */ | |
344 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ | |
345 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
346 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
347 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
348 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
349 | ||
350 | /* Rx private */ | |
351 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ | |
352 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ | |
353 | ||
354 | #define RxProtoUDP (PID1) | |
355 | #define RxProtoTCP (PID0) | |
356 | #define RxProtoIP (PID1 | PID0) | |
357 | #define RxProtoMask RxProtoIP | |
358 | ||
359 | IPFail = (1 << 16), /* IP checksum failed */ | |
360 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ | |
361 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ | |
362 | RxVlanTag = (1 << 16), /* VLAN tag available */ | |
363 | }; | |
364 | ||
365 | #define RsvdMask 0x3fffc000 | |
366 | ||
367 | struct TxDesc { | |
6cccd6e7 REB |
368 | __le32 opts1; |
369 | __le32 opts2; | |
370 | __le64 addr; | |
1da177e4 LT |
371 | }; |
372 | ||
373 | struct RxDesc { | |
6cccd6e7 REB |
374 | __le32 opts1; |
375 | __le32 opts2; | |
376 | __le64 addr; | |
1da177e4 LT |
377 | }; |
378 | ||
379 | struct ring_info { | |
380 | struct sk_buff *skb; | |
381 | u32 len; | |
382 | u8 __pad[sizeof(void *) - sizeof(u32)]; | |
383 | }; | |
384 | ||
f23e7fda FR |
385 | enum features { |
386 | RTL_FEATURE_WOL = (1 << 0), | |
fbac58fc | 387 | RTL_FEATURE_MSI = (1 << 1), |
f23e7fda FR |
388 | }; |
389 | ||
1da177e4 LT |
390 | struct rtl8169_private { |
391 | void __iomem *mmio_addr; /* memory map physical address */ | |
392 | struct pci_dev *pci_dev; /* Index of PCI device */ | |
c4028958 | 393 | struct net_device *dev; |
bea3348e | 394 | struct napi_struct napi; |
1da177e4 LT |
395 | struct net_device_stats stats; /* statistics of net device */ |
396 | spinlock_t lock; /* spin lock flag */ | |
b57b7e5a | 397 | u32 msg_enable; |
1da177e4 LT |
398 | int chipset; |
399 | int mac_version; | |
400 | int phy_version; | |
401 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ | |
402 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ | |
403 | u32 dirty_rx; | |
404 | u32 dirty_tx; | |
405 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ | |
406 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ | |
407 | dma_addr_t TxPhyAddr; | |
408 | dma_addr_t RxPhyAddr; | |
409 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ | |
410 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ | |
bcf0bf90 | 411 | unsigned align; |
1da177e4 LT |
412 | unsigned rx_buf_sz; |
413 | struct timer_list timer; | |
414 | u16 cp_cmd; | |
0e485150 FR |
415 | u16 intr_event; |
416 | u16 napi_event; | |
1da177e4 LT |
417 | u16 intr_mask; |
418 | int phy_auto_nego_reg; | |
419 | int phy_1000_ctrl_reg; | |
420 | #ifdef CONFIG_R8169_VLAN | |
421 | struct vlan_group *vlgrp; | |
422 | #endif | |
423 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); | |
424 | void (*get_settings)(struct net_device *, struct ethtool_cmd *); | |
425 | void (*phy_reset_enable)(void __iomem *); | |
07ce4064 | 426 | void (*hw_start)(struct net_device *); |
1da177e4 LT |
427 | unsigned int (*phy_reset_pending)(void __iomem *); |
428 | unsigned int (*link_ok)(void __iomem *); | |
c4028958 | 429 | struct delayed_work task; |
f23e7fda | 430 | unsigned features; |
1da177e4 LT |
431 | }; |
432 | ||
979b6c13 | 433 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
1da177e4 | 434 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
1da177e4 | 435 | module_param(rx_copybreak, int, 0); |
1b7efd58 | 436 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
1da177e4 LT |
437 | module_param(use_dac, int, 0); |
438 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); | |
b57b7e5a SH |
439 | module_param_named(debug, debug.msg_enable, int, 0); |
440 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
1da177e4 LT |
441 | MODULE_LICENSE("GPL"); |
442 | MODULE_VERSION(RTL8169_VERSION); | |
443 | ||
444 | static int rtl8169_open(struct net_device *dev); | |
445 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 446 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance); |
1da177e4 | 447 | static int rtl8169_init_ring(struct net_device *dev); |
07ce4064 | 448 | static void rtl_hw_start(struct net_device *dev); |
1da177e4 | 449 | static int rtl8169_close(struct net_device *dev); |
07ce4064 | 450 | static void rtl_set_rx_mode(struct net_device *dev); |
1da177e4 | 451 | static void rtl8169_tx_timeout(struct net_device *dev); |
4dcb7d33 | 452 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); |
1da177e4 | 453 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, |
bea3348e | 454 | void __iomem *, u32 budget); |
4dcb7d33 | 455 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
1da177e4 | 456 | static void rtl8169_down(struct net_device *dev); |
99f252b0 | 457 | static void rtl8169_rx_clear(struct rtl8169_private *tp); |
1da177e4 LT |
458 | |
459 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 460 | static int rtl8169_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
461 | #endif |
462 | ||
1da177e4 | 463 | static const unsigned int rtl8169_rx_config = |
5b0384f4 | 464 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
1da177e4 | 465 | |
07d3f51f | 466 | static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) |
1da177e4 LT |
467 | { |
468 | int i; | |
469 | ||
07d3f51f | 470 | RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0xFF) << 16 | value); |
1da177e4 | 471 | |
2371408c | 472 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
473 | /* |
474 | * Check if the RTL8169 has completed writing to the specified | |
475 | * MII register. | |
476 | */ | |
5b0384f4 | 477 | if (!(RTL_R32(PHYAR) & 0x80000000)) |
1da177e4 | 478 | break; |
2371408c | 479 | udelay(25); |
1da177e4 LT |
480 | } |
481 | } | |
482 | ||
07d3f51f | 483 | static int mdio_read(void __iomem *ioaddr, int reg_addr) |
1da177e4 LT |
484 | { |
485 | int i, value = -1; | |
486 | ||
07d3f51f | 487 | RTL_W32(PHYAR, 0x0 | (reg_addr & 0xFF) << 16); |
1da177e4 | 488 | |
2371408c | 489 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
490 | /* |
491 | * Check if the RTL8169 has completed retrieving data from | |
492 | * the specified MII register. | |
493 | */ | |
1da177e4 LT |
494 | if (RTL_R32(PHYAR) & 0x80000000) { |
495 | value = (int) (RTL_R32(PHYAR) & 0xFFFF); | |
496 | break; | |
497 | } | |
2371408c | 498 | udelay(25); |
1da177e4 LT |
499 | } |
500 | return value; | |
501 | } | |
502 | ||
503 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) | |
504 | { | |
505 | RTL_W16(IntrMask, 0x0000); | |
506 | ||
507 | RTL_W16(IntrStatus, 0xffff); | |
508 | } | |
509 | ||
510 | static void rtl8169_asic_down(void __iomem *ioaddr) | |
511 | { | |
512 | RTL_W8(ChipCmd, 0x00); | |
513 | rtl8169_irq_mask_and_ack(ioaddr); | |
514 | RTL_R16(CPlusCmd); | |
515 | } | |
516 | ||
517 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) | |
518 | { | |
519 | return RTL_R32(TBICSR) & TBIReset; | |
520 | } | |
521 | ||
522 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) | |
523 | { | |
64e4bfb4 | 524 | return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; |
1da177e4 LT |
525 | } |
526 | ||
527 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) | |
528 | { | |
529 | return RTL_R32(TBICSR) & TBILinkOk; | |
530 | } | |
531 | ||
532 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) | |
533 | { | |
534 | return RTL_R8(PHYstatus) & LinkStatus; | |
535 | } | |
536 | ||
537 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) | |
538 | { | |
539 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); | |
540 | } | |
541 | ||
542 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) | |
543 | { | |
544 | unsigned int val; | |
545 | ||
9e0db8ef FR |
546 | val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; |
547 | mdio_write(ioaddr, MII_BMCR, val & 0xffff); | |
1da177e4 LT |
548 | } |
549 | ||
550 | static void rtl8169_check_link_status(struct net_device *dev, | |
07d3f51f FR |
551 | struct rtl8169_private *tp, |
552 | void __iomem *ioaddr) | |
1da177e4 LT |
553 | { |
554 | unsigned long flags; | |
555 | ||
556 | spin_lock_irqsave(&tp->lock, flags); | |
557 | if (tp->link_ok(ioaddr)) { | |
558 | netif_carrier_on(dev); | |
b57b7e5a SH |
559 | if (netif_msg_ifup(tp)) |
560 | printk(KERN_INFO PFX "%s: link up\n", dev->name); | |
561 | } else { | |
562 | if (netif_msg_ifdown(tp)) | |
563 | printk(KERN_INFO PFX "%s: link down\n", dev->name); | |
1da177e4 | 564 | netif_carrier_off(dev); |
b57b7e5a | 565 | } |
1da177e4 LT |
566 | spin_unlock_irqrestore(&tp->lock, flags); |
567 | } | |
568 | ||
61a4dcc2 FR |
569 | static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
570 | { | |
571 | struct rtl8169_private *tp = netdev_priv(dev); | |
572 | void __iomem *ioaddr = tp->mmio_addr; | |
573 | u8 options; | |
574 | ||
575 | wol->wolopts = 0; | |
576 | ||
577 | #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) | |
578 | wol->supported = WAKE_ANY; | |
579 | ||
580 | spin_lock_irq(&tp->lock); | |
581 | ||
582 | options = RTL_R8(Config1); | |
583 | if (!(options & PMEnable)) | |
584 | goto out_unlock; | |
585 | ||
586 | options = RTL_R8(Config3); | |
587 | if (options & LinkUp) | |
588 | wol->wolopts |= WAKE_PHY; | |
589 | if (options & MagicPacket) | |
590 | wol->wolopts |= WAKE_MAGIC; | |
591 | ||
592 | options = RTL_R8(Config5); | |
593 | if (options & UWF) | |
594 | wol->wolopts |= WAKE_UCAST; | |
595 | if (options & BWF) | |
5b0384f4 | 596 | wol->wolopts |= WAKE_BCAST; |
61a4dcc2 | 597 | if (options & MWF) |
5b0384f4 | 598 | wol->wolopts |= WAKE_MCAST; |
61a4dcc2 FR |
599 | |
600 | out_unlock: | |
601 | spin_unlock_irq(&tp->lock); | |
602 | } | |
603 | ||
604 | static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
605 | { | |
606 | struct rtl8169_private *tp = netdev_priv(dev); | |
607 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 608 | unsigned int i; |
61a4dcc2 FR |
609 | static struct { |
610 | u32 opt; | |
611 | u16 reg; | |
612 | u8 mask; | |
613 | } cfg[] = { | |
614 | { WAKE_ANY, Config1, PMEnable }, | |
615 | { WAKE_PHY, Config3, LinkUp }, | |
616 | { WAKE_MAGIC, Config3, MagicPacket }, | |
617 | { WAKE_UCAST, Config5, UWF }, | |
618 | { WAKE_BCAST, Config5, BWF }, | |
619 | { WAKE_MCAST, Config5, MWF }, | |
620 | { WAKE_ANY, Config5, LanWake } | |
621 | }; | |
622 | ||
623 | spin_lock_irq(&tp->lock); | |
624 | ||
625 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
626 | ||
627 | for (i = 0; i < ARRAY_SIZE(cfg); i++) { | |
628 | u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask; | |
629 | if (wol->wolopts & cfg[i].opt) | |
630 | options |= cfg[i].mask; | |
631 | RTL_W8(cfg[i].reg, options); | |
632 | } | |
633 | ||
634 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
635 | ||
f23e7fda FR |
636 | if (wol->wolopts) |
637 | tp->features |= RTL_FEATURE_WOL; | |
638 | else | |
639 | tp->features &= ~RTL_FEATURE_WOL; | |
61a4dcc2 FR |
640 | |
641 | spin_unlock_irq(&tp->lock); | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
1da177e4 LT |
646 | static void rtl8169_get_drvinfo(struct net_device *dev, |
647 | struct ethtool_drvinfo *info) | |
648 | { | |
649 | struct rtl8169_private *tp = netdev_priv(dev); | |
650 | ||
651 | strcpy(info->driver, MODULENAME); | |
652 | strcpy(info->version, RTL8169_VERSION); | |
653 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
654 | } | |
655 | ||
656 | static int rtl8169_get_regs_len(struct net_device *dev) | |
657 | { | |
658 | return R8169_REGS_SIZE; | |
659 | } | |
660 | ||
661 | static int rtl8169_set_speed_tbi(struct net_device *dev, | |
662 | u8 autoneg, u16 speed, u8 duplex) | |
663 | { | |
664 | struct rtl8169_private *tp = netdev_priv(dev); | |
665 | void __iomem *ioaddr = tp->mmio_addr; | |
666 | int ret = 0; | |
667 | u32 reg; | |
668 | ||
669 | reg = RTL_R32(TBICSR); | |
670 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && | |
671 | (duplex == DUPLEX_FULL)) { | |
672 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); | |
673 | } else if (autoneg == AUTONEG_ENABLE) | |
674 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); | |
675 | else { | |
b57b7e5a SH |
676 | if (netif_msg_link(tp)) { |
677 | printk(KERN_WARNING "%s: " | |
678 | "incorrect speed setting refused in TBI mode\n", | |
679 | dev->name); | |
680 | } | |
1da177e4 LT |
681 | ret = -EOPNOTSUPP; |
682 | } | |
683 | ||
684 | return ret; | |
685 | } | |
686 | ||
687 | static int rtl8169_set_speed_xmii(struct net_device *dev, | |
688 | u8 autoneg, u16 speed, u8 duplex) | |
689 | { | |
690 | struct rtl8169_private *tp = netdev_priv(dev); | |
691 | void __iomem *ioaddr = tp->mmio_addr; | |
692 | int auto_nego, giga_ctrl; | |
693 | ||
64e4bfb4 FR |
694 | auto_nego = mdio_read(ioaddr, MII_ADVERTISE); |
695 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | | |
696 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
697 | giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); | |
698 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
1da177e4 LT |
699 | |
700 | if (autoneg == AUTONEG_ENABLE) { | |
64e4bfb4 FR |
701 | auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
702 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
703 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; | |
1da177e4 LT |
704 | } else { |
705 | if (speed == SPEED_10) | |
64e4bfb4 | 706 | auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; |
1da177e4 | 707 | else if (speed == SPEED_100) |
64e4bfb4 | 708 | auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; |
1da177e4 | 709 | else if (speed == SPEED_1000) |
64e4bfb4 | 710 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; |
1da177e4 LT |
711 | |
712 | if (duplex == DUPLEX_HALF) | |
64e4bfb4 | 713 | auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); |
726ecdcf AG |
714 | |
715 | if (duplex == DUPLEX_FULL) | |
64e4bfb4 | 716 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); |
bcf0bf90 FR |
717 | |
718 | /* This tweak comes straight from Realtek's driver. */ | |
719 | if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && | |
720 | (tp->mac_version == RTL_GIGA_MAC_VER_13)) { | |
64e4bfb4 | 721 | auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; |
bcf0bf90 FR |
722 | } |
723 | } | |
724 | ||
725 | /* The 8100e/8101e do Fast Ethernet only. */ | |
726 | if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
727 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
728 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
64e4bfb4 | 729 | if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) && |
bcf0bf90 FR |
730 | netif_msg_link(tp)) { |
731 | printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", | |
732 | dev->name); | |
733 | } | |
64e4bfb4 | 734 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
1da177e4 LT |
735 | } |
736 | ||
623a1593 FR |
737 | auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
738 | ||
2584fbc3 RS |
739 | if (tp->mac_version == RTL_GIGA_MAC_VER_12) { |
740 | /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */ | |
741 | mdio_write(ioaddr, 0x1f, 0x0000); | |
742 | mdio_write(ioaddr, 0x0e, 0x0000); | |
743 | } | |
744 | ||
1da177e4 LT |
745 | tp->phy_auto_nego_reg = auto_nego; |
746 | tp->phy_1000_ctrl_reg = giga_ctrl; | |
747 | ||
64e4bfb4 FR |
748 | mdio_write(ioaddr, MII_ADVERTISE, auto_nego); |
749 | mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); | |
750 | mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); | |
1da177e4 LT |
751 | return 0; |
752 | } | |
753 | ||
754 | static int rtl8169_set_speed(struct net_device *dev, | |
755 | u8 autoneg, u16 speed, u8 duplex) | |
756 | { | |
757 | struct rtl8169_private *tp = netdev_priv(dev); | |
758 | int ret; | |
759 | ||
760 | ret = tp->set_speed(dev, autoneg, speed, duplex); | |
761 | ||
64e4bfb4 | 762 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
763 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); |
764 | ||
765 | return ret; | |
766 | } | |
767 | ||
768 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
769 | { | |
770 | struct rtl8169_private *tp = netdev_priv(dev); | |
771 | unsigned long flags; | |
772 | int ret; | |
773 | ||
774 | spin_lock_irqsave(&tp->lock, flags); | |
775 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); | |
776 | spin_unlock_irqrestore(&tp->lock, flags); | |
5b0384f4 | 777 | |
1da177e4 LT |
778 | return ret; |
779 | } | |
780 | ||
781 | static u32 rtl8169_get_rx_csum(struct net_device *dev) | |
782 | { | |
783 | struct rtl8169_private *tp = netdev_priv(dev); | |
784 | ||
785 | return tp->cp_cmd & RxChkSum; | |
786 | } | |
787 | ||
788 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) | |
789 | { | |
790 | struct rtl8169_private *tp = netdev_priv(dev); | |
791 | void __iomem *ioaddr = tp->mmio_addr; | |
792 | unsigned long flags; | |
793 | ||
794 | spin_lock_irqsave(&tp->lock, flags); | |
795 | ||
796 | if (data) | |
797 | tp->cp_cmd |= RxChkSum; | |
798 | else | |
799 | tp->cp_cmd &= ~RxChkSum; | |
800 | ||
801 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
802 | RTL_R16(CPlusCmd); | |
803 | ||
804 | spin_unlock_irqrestore(&tp->lock, flags); | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | #ifdef CONFIG_R8169_VLAN | |
810 | ||
811 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
812 | struct sk_buff *skb) | |
813 | { | |
814 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? | |
815 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; | |
816 | } | |
817 | ||
818 | static void rtl8169_vlan_rx_register(struct net_device *dev, | |
819 | struct vlan_group *grp) | |
820 | { | |
821 | struct rtl8169_private *tp = netdev_priv(dev); | |
822 | void __iomem *ioaddr = tp->mmio_addr; | |
823 | unsigned long flags; | |
824 | ||
825 | spin_lock_irqsave(&tp->lock, flags); | |
826 | tp->vlgrp = grp; | |
827 | if (tp->vlgrp) | |
828 | tp->cp_cmd |= RxVlan; | |
829 | else | |
830 | tp->cp_cmd &= ~RxVlan; | |
831 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
832 | RTL_R16(CPlusCmd); | |
833 | spin_unlock_irqrestore(&tp->lock, flags); | |
834 | } | |
835 | ||
1da177e4 LT |
836 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
837 | struct sk_buff *skb) | |
838 | { | |
839 | u32 opts2 = le32_to_cpu(desc->opts2); | |
840 | int ret; | |
841 | ||
842 | if (tp->vlgrp && (opts2 & RxVlanTag)) { | |
07d3f51f | 843 | rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff)); |
1da177e4 LT |
844 | ret = 0; |
845 | } else | |
846 | ret = -1; | |
847 | desc->opts2 = 0; | |
848 | return ret; | |
849 | } | |
850 | ||
851 | #else /* !CONFIG_R8169_VLAN */ | |
852 | ||
853 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
854 | struct sk_buff *skb) | |
855 | { | |
856 | return 0; | |
857 | } | |
858 | ||
859 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
860 | struct sk_buff *skb) | |
861 | { | |
862 | return -1; | |
863 | } | |
864 | ||
865 | #endif | |
866 | ||
867 | static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) | |
868 | { | |
869 | struct rtl8169_private *tp = netdev_priv(dev); | |
870 | void __iomem *ioaddr = tp->mmio_addr; | |
871 | u32 status; | |
872 | ||
873 | cmd->supported = | |
874 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; | |
875 | cmd->port = PORT_FIBRE; | |
876 | cmd->transceiver = XCVR_INTERNAL; | |
877 | ||
878 | status = RTL_R32(TBICSR); | |
879 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; | |
880 | cmd->autoneg = !!(status & TBINwEnable); | |
881 | ||
882 | cmd->speed = SPEED_1000; | |
883 | cmd->duplex = DUPLEX_FULL; /* Always set */ | |
884 | } | |
885 | ||
886 | static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) | |
887 | { | |
888 | struct rtl8169_private *tp = netdev_priv(dev); | |
889 | void __iomem *ioaddr = tp->mmio_addr; | |
890 | u8 status; | |
891 | ||
892 | cmd->supported = SUPPORTED_10baseT_Half | | |
893 | SUPPORTED_10baseT_Full | | |
894 | SUPPORTED_100baseT_Half | | |
895 | SUPPORTED_100baseT_Full | | |
896 | SUPPORTED_1000baseT_Full | | |
897 | SUPPORTED_Autoneg | | |
5b0384f4 | 898 | SUPPORTED_TP; |
1da177e4 LT |
899 | |
900 | cmd->autoneg = 1; | |
901 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; | |
902 | ||
64e4bfb4 | 903 | if (tp->phy_auto_nego_reg & ADVERTISE_10HALF) |
1da177e4 | 904 | cmd->advertising |= ADVERTISED_10baseT_Half; |
64e4bfb4 | 905 | if (tp->phy_auto_nego_reg & ADVERTISE_10FULL) |
1da177e4 | 906 | cmd->advertising |= ADVERTISED_10baseT_Full; |
64e4bfb4 | 907 | if (tp->phy_auto_nego_reg & ADVERTISE_100HALF) |
1da177e4 | 908 | cmd->advertising |= ADVERTISED_100baseT_Half; |
64e4bfb4 | 909 | if (tp->phy_auto_nego_reg & ADVERTISE_100FULL) |
1da177e4 | 910 | cmd->advertising |= ADVERTISED_100baseT_Full; |
64e4bfb4 | 911 | if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL) |
1da177e4 LT |
912 | cmd->advertising |= ADVERTISED_1000baseT_Full; |
913 | ||
914 | status = RTL_R8(PHYstatus); | |
915 | ||
916 | if (status & _1000bpsF) | |
917 | cmd->speed = SPEED_1000; | |
918 | else if (status & _100bps) | |
919 | cmd->speed = SPEED_100; | |
920 | else if (status & _10bps) | |
921 | cmd->speed = SPEED_10; | |
922 | ||
623a1593 FR |
923 | if (status & TxFlowCtrl) |
924 | cmd->advertising |= ADVERTISED_Asym_Pause; | |
925 | if (status & RxFlowCtrl) | |
926 | cmd->advertising |= ADVERTISED_Pause; | |
927 | ||
1da177e4 LT |
928 | cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? |
929 | DUPLEX_FULL : DUPLEX_HALF; | |
930 | } | |
931 | ||
932 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
933 | { | |
934 | struct rtl8169_private *tp = netdev_priv(dev); | |
935 | unsigned long flags; | |
936 | ||
937 | spin_lock_irqsave(&tp->lock, flags); | |
938 | ||
939 | tp->get_settings(dev, cmd); | |
940 | ||
941 | spin_unlock_irqrestore(&tp->lock, flags); | |
942 | return 0; | |
943 | } | |
944 | ||
945 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
946 | void *p) | |
947 | { | |
5b0384f4 FR |
948 | struct rtl8169_private *tp = netdev_priv(dev); |
949 | unsigned long flags; | |
1da177e4 | 950 | |
5b0384f4 FR |
951 | if (regs->len > R8169_REGS_SIZE) |
952 | regs->len = R8169_REGS_SIZE; | |
1da177e4 | 953 | |
5b0384f4 FR |
954 | spin_lock_irqsave(&tp->lock, flags); |
955 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
956 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
957 | } |
958 | ||
b57b7e5a SH |
959 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
960 | { | |
961 | struct rtl8169_private *tp = netdev_priv(dev); | |
962 | ||
963 | return tp->msg_enable; | |
964 | } | |
965 | ||
966 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) | |
967 | { | |
968 | struct rtl8169_private *tp = netdev_priv(dev); | |
969 | ||
970 | tp->msg_enable = value; | |
971 | } | |
972 | ||
d4a3a0fc SH |
973 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
974 | "tx_packets", | |
975 | "rx_packets", | |
976 | "tx_errors", | |
977 | "rx_errors", | |
978 | "rx_missed", | |
979 | "align_errors", | |
980 | "tx_single_collisions", | |
981 | "tx_multi_collisions", | |
982 | "unicast", | |
983 | "broadcast", | |
984 | "multicast", | |
985 | "tx_aborted", | |
986 | "tx_underrun", | |
987 | }; | |
988 | ||
989 | struct rtl8169_counters { | |
b1eab701 AV |
990 | __le64 tx_packets; |
991 | __le64 rx_packets; | |
992 | __le64 tx_errors; | |
993 | __le32 rx_errors; | |
994 | __le16 rx_missed; | |
995 | __le16 align_errors; | |
996 | __le32 tx_one_collision; | |
997 | __le32 tx_multi_collision; | |
998 | __le64 rx_unicast; | |
999 | __le64 rx_broadcast; | |
1000 | __le32 rx_multicast; | |
1001 | __le16 tx_aborted; | |
1002 | __le16 tx_underun; | |
d4a3a0fc SH |
1003 | }; |
1004 | ||
b9f2c044 | 1005 | static int rtl8169_get_sset_count(struct net_device *dev, int sset) |
d4a3a0fc | 1006 | { |
b9f2c044 JG |
1007 | switch (sset) { |
1008 | case ETH_SS_STATS: | |
1009 | return ARRAY_SIZE(rtl8169_gstrings); | |
1010 | default: | |
1011 | return -EOPNOTSUPP; | |
1012 | } | |
d4a3a0fc SH |
1013 | } |
1014 | ||
1015 | static void rtl8169_get_ethtool_stats(struct net_device *dev, | |
1016 | struct ethtool_stats *stats, u64 *data) | |
1017 | { | |
1018 | struct rtl8169_private *tp = netdev_priv(dev); | |
1019 | void __iomem *ioaddr = tp->mmio_addr; | |
1020 | struct rtl8169_counters *counters; | |
1021 | dma_addr_t paddr; | |
1022 | u32 cmd; | |
1023 | ||
1024 | ASSERT_RTNL(); | |
1025 | ||
1026 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); | |
1027 | if (!counters) | |
1028 | return; | |
1029 | ||
1030 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); | |
1031 | cmd = (u64)paddr & DMA_32BIT_MASK; | |
1032 | RTL_W32(CounterAddrLow, cmd); | |
1033 | RTL_W32(CounterAddrLow, cmd | CounterDump); | |
1034 | ||
1035 | while (RTL_R32(CounterAddrLow) & CounterDump) { | |
1036 | if (msleep_interruptible(1)) | |
1037 | break; | |
1038 | } | |
1039 | ||
1040 | RTL_W32(CounterAddrLow, 0); | |
1041 | RTL_W32(CounterAddrHigh, 0); | |
1042 | ||
5b0384f4 | 1043 | data[0] = le64_to_cpu(counters->tx_packets); |
d4a3a0fc SH |
1044 | data[1] = le64_to_cpu(counters->rx_packets); |
1045 | data[2] = le64_to_cpu(counters->tx_errors); | |
1046 | data[3] = le32_to_cpu(counters->rx_errors); | |
1047 | data[4] = le16_to_cpu(counters->rx_missed); | |
1048 | data[5] = le16_to_cpu(counters->align_errors); | |
1049 | data[6] = le32_to_cpu(counters->tx_one_collision); | |
1050 | data[7] = le32_to_cpu(counters->tx_multi_collision); | |
1051 | data[8] = le64_to_cpu(counters->rx_unicast); | |
1052 | data[9] = le64_to_cpu(counters->rx_broadcast); | |
1053 | data[10] = le32_to_cpu(counters->rx_multicast); | |
1054 | data[11] = le16_to_cpu(counters->tx_aborted); | |
1055 | data[12] = le16_to_cpu(counters->tx_underun); | |
1056 | ||
1057 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); | |
1058 | } | |
1059 | ||
1060 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1061 | { | |
1062 | switch(stringset) { | |
1063 | case ETH_SS_STATS: | |
1064 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); | |
1065 | break; | |
1066 | } | |
1067 | } | |
1068 | ||
7282d491 | 1069 | static const struct ethtool_ops rtl8169_ethtool_ops = { |
1da177e4 LT |
1070 | .get_drvinfo = rtl8169_get_drvinfo, |
1071 | .get_regs_len = rtl8169_get_regs_len, | |
1072 | .get_link = ethtool_op_get_link, | |
1073 | .get_settings = rtl8169_get_settings, | |
1074 | .set_settings = rtl8169_set_settings, | |
b57b7e5a SH |
1075 | .get_msglevel = rtl8169_get_msglevel, |
1076 | .set_msglevel = rtl8169_set_msglevel, | |
1da177e4 LT |
1077 | .get_rx_csum = rtl8169_get_rx_csum, |
1078 | .set_rx_csum = rtl8169_set_rx_csum, | |
1da177e4 | 1079 | .set_tx_csum = ethtool_op_set_tx_csum, |
1da177e4 | 1080 | .set_sg = ethtool_op_set_sg, |
1da177e4 LT |
1081 | .set_tso = ethtool_op_set_tso, |
1082 | .get_regs = rtl8169_get_regs, | |
61a4dcc2 FR |
1083 | .get_wol = rtl8169_get_wol, |
1084 | .set_wol = rtl8169_set_wol, | |
d4a3a0fc | 1085 | .get_strings = rtl8169_get_strings, |
b9f2c044 | 1086 | .get_sset_count = rtl8169_get_sset_count, |
d4a3a0fc | 1087 | .get_ethtool_stats = rtl8169_get_ethtool_stats, |
1da177e4 LT |
1088 | }; |
1089 | ||
07d3f51f FR |
1090 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, |
1091 | int bitnum, int bitval) | |
1da177e4 LT |
1092 | { |
1093 | int val; | |
1094 | ||
1095 | val = mdio_read(ioaddr, reg); | |
1096 | val = (bitval == 1) ? | |
1097 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); | |
5b0384f4 | 1098 | mdio_write(ioaddr, reg, val & 0xffff); |
1da177e4 LT |
1099 | } |
1100 | ||
07d3f51f FR |
1101 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, |
1102 | void __iomem *ioaddr) | |
1da177e4 | 1103 | { |
0e485150 FR |
1104 | /* |
1105 | * The driver currently handles the 8168Bf and the 8168Be identically | |
1106 | * but they can be identified more specifically through the test below | |
1107 | * if needed: | |
1108 | * | |
1109 | * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be | |
0127215c FR |
1110 | * |
1111 | * Same thing for the 8101Eb and the 8101Ec: | |
1112 | * | |
1113 | * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec | |
0e485150 | 1114 | */ |
1da177e4 LT |
1115 | const struct { |
1116 | u32 mask; | |
1117 | int mac_version; | |
1118 | } mac_info[] = { | |
bcf0bf90 FR |
1119 | { 0x38800000, RTL_GIGA_MAC_VER_15 }, |
1120 | { 0x38000000, RTL_GIGA_MAC_VER_12 }, | |
1121 | { 0x34000000, RTL_GIGA_MAC_VER_13 }, | |
1122 | { 0x30800000, RTL_GIGA_MAC_VER_14 }, | |
5b0384f4 | 1123 | { 0x30000000, RTL_GIGA_MAC_VER_11 }, |
6dccd16b | 1124 | { 0x98000000, RTL_GIGA_MAC_VER_06 }, |
bcf0bf90 FR |
1125 | { 0x18000000, RTL_GIGA_MAC_VER_05 }, |
1126 | { 0x10000000, RTL_GIGA_MAC_VER_04 }, | |
1127 | { 0x04000000, RTL_GIGA_MAC_VER_03 }, | |
1128 | { 0x00800000, RTL_GIGA_MAC_VER_02 }, | |
1129 | { 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ | |
1da177e4 LT |
1130 | }, *p = mac_info; |
1131 | u32 reg; | |
1132 | ||
6dccd16b | 1133 | reg = RTL_R32(TxConfig) & 0xfc800000; |
1da177e4 LT |
1134 | while ((reg & p->mask) != p->mask) |
1135 | p++; | |
1136 | tp->mac_version = p->mac_version; | |
1137 | } | |
1138 | ||
1139 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) | |
1140 | { | |
bcf0bf90 | 1141 | dprintk("mac_version = 0x%02x\n", tp->mac_version); |
1da177e4 LT |
1142 | } |
1143 | ||
07d3f51f FR |
1144 | static void rtl8169_get_phy_version(struct rtl8169_private *tp, |
1145 | void __iomem *ioaddr) | |
1da177e4 LT |
1146 | { |
1147 | const struct { | |
1148 | u16 mask; | |
1149 | u16 set; | |
1150 | int phy_version; | |
1151 | } phy_info[] = { | |
1152 | { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, | |
1153 | { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, | |
1154 | { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, | |
1155 | { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ | |
1156 | }, *p = phy_info; | |
1157 | u16 reg; | |
1158 | ||
64e4bfb4 | 1159 | reg = mdio_read(ioaddr, MII_PHYSID2) & 0xffff; |
1da177e4 LT |
1160 | while ((reg & p->mask) != p->set) |
1161 | p++; | |
1162 | tp->phy_version = p->phy_version; | |
1163 | } | |
1164 | ||
1165 | static void rtl8169_print_phy_version(struct rtl8169_private *tp) | |
1166 | { | |
1167 | struct { | |
1168 | int version; | |
1169 | char *msg; | |
1170 | u32 reg; | |
1171 | } phy_print[] = { | |
1172 | { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, | |
1173 | { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, | |
1174 | { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, | |
1175 | { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, | |
1176 | { 0, NULL, 0x0000 } | |
1177 | }, *p; | |
1178 | ||
1179 | for (p = phy_print; p->msg; p++) { | |
1180 | if (tp->phy_version == p->version) { | |
1181 | dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); | |
1182 | return; | |
1183 | } | |
1184 | } | |
1185 | dprintk("phy_version == Unknown\n"); | |
1186 | } | |
1187 | ||
1188 | static void rtl8169_hw_phy_config(struct net_device *dev) | |
1189 | { | |
1190 | struct rtl8169_private *tp = netdev_priv(dev); | |
1191 | void __iomem *ioaddr = tp->mmio_addr; | |
1192 | struct { | |
1193 | u16 regs[5]; /* Beware of bit-sign propagation */ | |
1194 | } phy_magic[5] = { { | |
1195 | { 0x0000, //w 4 15 12 0 | |
1196 | 0x00a1, //w 3 15 0 00a1 | |
1197 | 0x0008, //w 2 15 0 0008 | |
1198 | 0x1020, //w 1 15 0 1020 | |
1199 | 0x1000 } },{ //w 0 15 0 1000 | |
1200 | { 0x7000, //w 4 15 12 7 | |
1201 | 0xff41, //w 3 15 0 ff41 | |
1202 | 0xde60, //w 2 15 0 de60 | |
1203 | 0x0140, //w 1 15 0 0140 | |
1204 | 0x0077 } },{ //w 0 15 0 0077 | |
1205 | { 0xa000, //w 4 15 12 a | |
1206 | 0xdf01, //w 3 15 0 df01 | |
1207 | 0xdf20, //w 2 15 0 df20 | |
1208 | 0xff95, //w 1 15 0 ff95 | |
1209 | 0xfa00 } },{ //w 0 15 0 fa00 | |
1210 | { 0xb000, //w 4 15 12 b | |
1211 | 0xff41, //w 3 15 0 ff41 | |
1212 | 0xde20, //w 2 15 0 de20 | |
1213 | 0x0140, //w 1 15 0 0140 | |
1214 | 0x00bb } },{ //w 0 15 0 00bb | |
1215 | { 0xf000, //w 4 15 12 f | |
1216 | 0xdf01, //w 3 15 0 df01 | |
1217 | 0xdf20, //w 2 15 0 df20 | |
1218 | 0xff95, //w 1 15 0 ff95 | |
1219 | 0xbf00 } //w 0 15 0 bf00 | |
1220 | } | |
1221 | }, *p = phy_magic; | |
07d3f51f | 1222 | unsigned int i; |
1da177e4 LT |
1223 | |
1224 | rtl8169_print_mac_version(tp); | |
1225 | rtl8169_print_phy_version(tp); | |
1226 | ||
bcf0bf90 | 1227 | if (tp->mac_version <= RTL_GIGA_MAC_VER_01) |
1da177e4 LT |
1228 | return; |
1229 | if (tp->phy_version >= RTL_GIGA_PHY_VER_H) | |
1230 | return; | |
1231 | ||
1232 | dprintk("MAC version != 0 && PHY version == 0 or 1\n"); | |
1233 | dprintk("Do final_reg2.cfg\n"); | |
1234 | ||
1235 | /* Shazam ! */ | |
1236 | ||
bcf0bf90 | 1237 | if (tp->mac_version == RTL_GIGA_MAC_VER_04) { |
1da177e4 LT |
1238 | mdio_write(ioaddr, 31, 0x0002); |
1239 | mdio_write(ioaddr, 1, 0x90d0); | |
1240 | mdio_write(ioaddr, 31, 0x0000); | |
1241 | return; | |
1242 | } | |
1243 | ||
65d916d9 EH |
1244 | if ((tp->mac_version != RTL_GIGA_MAC_VER_02) && |
1245 | (tp->mac_version != RTL_GIGA_MAC_VER_03)) | |
1246 | return; | |
1247 | ||
1da177e4 LT |
1248 | mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 |
1249 | mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 | |
1250 | mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 | |
1251 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1252 | ||
1253 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { | |
1254 | int val, pos = 4; | |
1255 | ||
1256 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); | |
1257 | mdio_write(ioaddr, pos, val); | |
1258 | while (--pos >= 0) | |
1259 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); | |
1260 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 | |
1261 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1262 | } | |
1263 | mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 | |
1264 | } | |
1265 | ||
1266 | static void rtl8169_phy_timer(unsigned long __opaque) | |
1267 | { | |
1268 | struct net_device *dev = (struct net_device *)__opaque; | |
1269 | struct rtl8169_private *tp = netdev_priv(dev); | |
1270 | struct timer_list *timer = &tp->timer; | |
1271 | void __iomem *ioaddr = tp->mmio_addr; | |
1272 | unsigned long timeout = RTL8169_PHY_TIMEOUT; | |
1273 | ||
bcf0bf90 | 1274 | assert(tp->mac_version > RTL_GIGA_MAC_VER_01); |
1da177e4 LT |
1275 | assert(tp->phy_version < RTL_GIGA_PHY_VER_H); |
1276 | ||
64e4bfb4 | 1277 | if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
1278 | return; |
1279 | ||
1280 | spin_lock_irq(&tp->lock); | |
1281 | ||
1282 | if (tp->phy_reset_pending(ioaddr)) { | |
5b0384f4 | 1283 | /* |
1da177e4 LT |
1284 | * A busy loop could burn quite a few cycles on nowadays CPU. |
1285 | * Let's delay the execution of the timer for a few ticks. | |
1286 | */ | |
1287 | timeout = HZ/10; | |
1288 | goto out_mod_timer; | |
1289 | } | |
1290 | ||
1291 | if (tp->link_ok(ioaddr)) | |
1292 | goto out_unlock; | |
1293 | ||
b57b7e5a SH |
1294 | if (netif_msg_link(tp)) |
1295 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); | |
1da177e4 LT |
1296 | |
1297 | tp->phy_reset_enable(ioaddr); | |
1298 | ||
1299 | out_mod_timer: | |
1300 | mod_timer(timer, jiffies + timeout); | |
1301 | out_unlock: | |
1302 | spin_unlock_irq(&tp->lock); | |
1303 | } | |
1304 | ||
1305 | static inline void rtl8169_delete_timer(struct net_device *dev) | |
1306 | { | |
1307 | struct rtl8169_private *tp = netdev_priv(dev); | |
1308 | struct timer_list *timer = &tp->timer; | |
1309 | ||
bcf0bf90 | 1310 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1311 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1312 | return; | |
1313 | ||
1314 | del_timer_sync(timer); | |
1315 | } | |
1316 | ||
1317 | static inline void rtl8169_request_timer(struct net_device *dev) | |
1318 | { | |
1319 | struct rtl8169_private *tp = netdev_priv(dev); | |
1320 | struct timer_list *timer = &tp->timer; | |
1321 | ||
bcf0bf90 | 1322 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1323 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1324 | return; | |
1325 | ||
2efa53f3 | 1326 | mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT); |
1da177e4 LT |
1327 | } |
1328 | ||
1329 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1330 | /* | |
1331 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
1332 | * without having to re-enable interrupts. It's not called while | |
1333 | * the interrupt routine is executing. | |
1334 | */ | |
1335 | static void rtl8169_netpoll(struct net_device *dev) | |
1336 | { | |
1337 | struct rtl8169_private *tp = netdev_priv(dev); | |
1338 | struct pci_dev *pdev = tp->pci_dev; | |
1339 | ||
1340 | disable_irq(pdev->irq); | |
7d12e780 | 1341 | rtl8169_interrupt(pdev->irq, dev); |
1da177e4 LT |
1342 | enable_irq(pdev->irq); |
1343 | } | |
1344 | #endif | |
1345 | ||
1346 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, | |
1347 | void __iomem *ioaddr) | |
1348 | { | |
1349 | iounmap(ioaddr); | |
1350 | pci_release_regions(pdev); | |
1351 | pci_disable_device(pdev); | |
1352 | free_netdev(dev); | |
1353 | } | |
1354 | ||
bf793295 FR |
1355 | static void rtl8169_phy_reset(struct net_device *dev, |
1356 | struct rtl8169_private *tp) | |
1357 | { | |
1358 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 1359 | unsigned int i; |
bf793295 FR |
1360 | |
1361 | tp->phy_reset_enable(ioaddr); | |
1362 | for (i = 0; i < 100; i++) { | |
1363 | if (!tp->phy_reset_pending(ioaddr)) | |
1364 | return; | |
1365 | msleep(1); | |
1366 | } | |
1367 | if (netif_msg_link(tp)) | |
1368 | printk(KERN_ERR "%s: PHY reset failed.\n", dev->name); | |
1369 | } | |
1370 | ||
4ff96fa6 FR |
1371 | static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) |
1372 | { | |
1373 | void __iomem *ioaddr = tp->mmio_addr; | |
4ff96fa6 FR |
1374 | |
1375 | rtl8169_hw_phy_config(dev); | |
1376 | ||
1377 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1378 | RTL_W8(0x82, 0x01); | |
1379 | ||
6dccd16b FR |
1380 | pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); |
1381 | ||
1382 | if (tp->mac_version <= RTL_GIGA_MAC_VER_06) | |
1383 | pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); | |
4ff96fa6 | 1384 | |
bcf0bf90 | 1385 | if (tp->mac_version == RTL_GIGA_MAC_VER_02) { |
4ff96fa6 FR |
1386 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
1387 | RTL_W8(0x82, 0x01); | |
1388 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); | |
1389 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 | |
1390 | } | |
1391 | ||
bf793295 FR |
1392 | rtl8169_phy_reset(dev, tp); |
1393 | ||
901dda2b FR |
1394 | /* |
1395 | * rtl8169_set_speed_xmii takes good care of the Fast Ethernet | |
1396 | * only 8101. Don't panic. | |
1397 | */ | |
1398 | rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL); | |
4ff96fa6 FR |
1399 | |
1400 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) | |
1401 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); | |
1402 | } | |
1403 | ||
773d2021 FR |
1404 | static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) |
1405 | { | |
1406 | void __iomem *ioaddr = tp->mmio_addr; | |
1407 | u32 high; | |
1408 | u32 low; | |
1409 | ||
1410 | low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24); | |
1411 | high = addr[4] | (addr[5] << 8); | |
1412 | ||
1413 | spin_lock_irq(&tp->lock); | |
1414 | ||
1415 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
1416 | RTL_W32(MAC0, low); | |
1417 | RTL_W32(MAC4, high); | |
1418 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1419 | ||
1420 | spin_unlock_irq(&tp->lock); | |
1421 | } | |
1422 | ||
1423 | static int rtl_set_mac_address(struct net_device *dev, void *p) | |
1424 | { | |
1425 | struct rtl8169_private *tp = netdev_priv(dev); | |
1426 | struct sockaddr *addr = p; | |
1427 | ||
1428 | if (!is_valid_ether_addr(addr->sa_data)) | |
1429 | return -EADDRNOTAVAIL; | |
1430 | ||
1431 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1432 | ||
1433 | rtl_rar_set(tp, dev->dev_addr); | |
1434 | ||
1435 | return 0; | |
1436 | } | |
1437 | ||
5f787a1a FR |
1438 | static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1439 | { | |
1440 | struct rtl8169_private *tp = netdev_priv(dev); | |
1441 | struct mii_ioctl_data *data = if_mii(ifr); | |
1442 | ||
1443 | if (!netif_running(dev)) | |
1444 | return -ENODEV; | |
1445 | ||
1446 | switch (cmd) { | |
1447 | case SIOCGMIIPHY: | |
1448 | data->phy_id = 32; /* Internal PHY */ | |
1449 | return 0; | |
1450 | ||
1451 | case SIOCGMIIREG: | |
1452 | data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f); | |
1453 | return 0; | |
1454 | ||
1455 | case SIOCSMIIREG: | |
1456 | if (!capable(CAP_NET_ADMIN)) | |
1457 | return -EPERM; | |
1458 | mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in); | |
1459 | return 0; | |
1460 | } | |
1461 | return -EOPNOTSUPP; | |
1462 | } | |
1463 | ||
0e485150 FR |
1464 | static const struct rtl_cfg_info { |
1465 | void (*hw_start)(struct net_device *); | |
1466 | unsigned int region; | |
1467 | unsigned int align; | |
1468 | u16 intr_event; | |
1469 | u16 napi_event; | |
fbac58fc | 1470 | unsigned msi; |
0e485150 FR |
1471 | } rtl_cfg_infos [] = { |
1472 | [RTL_CFG_0] = { | |
1473 | .hw_start = rtl_hw_start_8169, | |
1474 | .region = 1, | |
e9f63f30 | 1475 | .align = 0, |
0e485150 FR |
1476 | .intr_event = SYSErr | LinkChg | RxOverflow | |
1477 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc FR |
1478 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, |
1479 | .msi = 0 | |
0e485150 FR |
1480 | }, |
1481 | [RTL_CFG_1] = { | |
1482 | .hw_start = rtl_hw_start_8168, | |
1483 | .region = 2, | |
1484 | .align = 8, | |
1485 | .intr_event = SYSErr | LinkChg | RxOverflow | | |
1486 | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc FR |
1487 | .napi_event = TxErr | TxOK | RxOK | RxOverflow, |
1488 | .msi = RTL_FEATURE_MSI | |
0e485150 FR |
1489 | }, |
1490 | [RTL_CFG_2] = { | |
1491 | .hw_start = rtl_hw_start_8101, | |
1492 | .region = 2, | |
1493 | .align = 8, | |
1494 | .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout | | |
1495 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc FR |
1496 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, |
1497 | .msi = RTL_FEATURE_MSI | |
0e485150 FR |
1498 | } |
1499 | }; | |
1500 | ||
fbac58fc FR |
1501 | /* Cfg9346_Unlock assumed. */ |
1502 | static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr, | |
1503 | const struct rtl_cfg_info *cfg) | |
1504 | { | |
1505 | unsigned msi = 0; | |
1506 | u8 cfg2; | |
1507 | ||
1508 | cfg2 = RTL_R8(Config2) & ~MSIEnable; | |
1509 | if (cfg->msi) { | |
1510 | if (pci_enable_msi(pdev)) { | |
1511 | dev_info(&pdev->dev, "no MSI. Back to INTx.\n"); | |
1512 | } else { | |
1513 | cfg2 |= MSIEnable; | |
1514 | msi = RTL_FEATURE_MSI; | |
1515 | } | |
1516 | } | |
1517 | RTL_W8(Config2, cfg2); | |
1518 | return msi; | |
1519 | } | |
1520 | ||
1521 | static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp) | |
1522 | { | |
1523 | if (tp->features & RTL_FEATURE_MSI) { | |
1524 | pci_disable_msi(pdev); | |
1525 | tp->features &= ~RTL_FEATURE_MSI; | |
1526 | } | |
1527 | } | |
1528 | ||
1da177e4 | 1529 | static int __devinit |
4ff96fa6 | 1530 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 1531 | { |
0e485150 FR |
1532 | const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; |
1533 | const unsigned int region = cfg->region; | |
1da177e4 | 1534 | struct rtl8169_private *tp; |
4ff96fa6 FR |
1535 | struct net_device *dev; |
1536 | void __iomem *ioaddr; | |
07d3f51f FR |
1537 | unsigned int i; |
1538 | int rc; | |
1da177e4 | 1539 | |
4ff96fa6 FR |
1540 | if (netif_msg_drv(&debug)) { |
1541 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", | |
1542 | MODULENAME, RTL8169_VERSION); | |
1543 | } | |
1da177e4 | 1544 | |
1da177e4 | 1545 | dev = alloc_etherdev(sizeof (*tp)); |
4ff96fa6 | 1546 | if (!dev) { |
b57b7e5a | 1547 | if (netif_msg_drv(&debug)) |
9b91cf9d | 1548 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
4ff96fa6 FR |
1549 | rc = -ENOMEM; |
1550 | goto out; | |
1da177e4 LT |
1551 | } |
1552 | ||
1da177e4 LT |
1553 | SET_NETDEV_DEV(dev, &pdev->dev); |
1554 | tp = netdev_priv(dev); | |
c4028958 | 1555 | tp->dev = dev; |
b57b7e5a | 1556 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
1da177e4 LT |
1557 | |
1558 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
1559 | rc = pci_enable_device(pdev); | |
b57b7e5a | 1560 | if (rc < 0) { |
2e8a538d | 1561 | if (netif_msg_probe(tp)) |
9b91cf9d | 1562 | dev_err(&pdev->dev, "enable failure\n"); |
4ff96fa6 | 1563 | goto err_out_free_dev_1; |
1da177e4 LT |
1564 | } |
1565 | ||
1566 | rc = pci_set_mwi(pdev); | |
1567 | if (rc < 0) | |
4ff96fa6 | 1568 | goto err_out_disable_2; |
1da177e4 | 1569 | |
1da177e4 | 1570 | /* make sure PCI base addr 1 is MMIO */ |
bcf0bf90 | 1571 | if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { |
4ff96fa6 | 1572 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1573 | dev_err(&pdev->dev, |
bcf0bf90 FR |
1574 | "region #%d not an MMIO resource, aborting\n", |
1575 | region); | |
4ff96fa6 | 1576 | } |
1da177e4 | 1577 | rc = -ENODEV; |
4ff96fa6 | 1578 | goto err_out_mwi_3; |
1da177e4 | 1579 | } |
4ff96fa6 | 1580 | |
1da177e4 | 1581 | /* check for weird/broken PCI region reporting */ |
bcf0bf90 | 1582 | if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) { |
4ff96fa6 | 1583 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1584 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1585 | "Invalid PCI region size(s), aborting\n"); |
1586 | } | |
1da177e4 | 1587 | rc = -ENODEV; |
4ff96fa6 | 1588 | goto err_out_mwi_3; |
1da177e4 LT |
1589 | } |
1590 | ||
1591 | rc = pci_request_regions(pdev, MODULENAME); | |
b57b7e5a | 1592 | if (rc < 0) { |
2e8a538d | 1593 | if (netif_msg_probe(tp)) |
9b91cf9d | 1594 | dev_err(&pdev->dev, "could not request regions.\n"); |
4ff96fa6 | 1595 | goto err_out_mwi_3; |
1da177e4 LT |
1596 | } |
1597 | ||
1598 | tp->cp_cmd = PCIMulRW | RxChkSum; | |
1599 | ||
1600 | if ((sizeof(dma_addr_t) > 4) && | |
1601 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { | |
1602 | tp->cp_cmd |= PCIDAC; | |
1603 | dev->features |= NETIF_F_HIGHDMA; | |
1604 | } else { | |
1605 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1606 | if (rc < 0) { | |
4ff96fa6 | 1607 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1608 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1609 | "DMA configuration failed.\n"); |
1610 | } | |
1611 | goto err_out_free_res_4; | |
1da177e4 LT |
1612 | } |
1613 | } | |
1614 | ||
1615 | pci_set_master(pdev); | |
1616 | ||
1617 | /* ioremap MMIO region */ | |
bcf0bf90 | 1618 | ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE); |
4ff96fa6 | 1619 | if (!ioaddr) { |
b57b7e5a | 1620 | if (netif_msg_probe(tp)) |
9b91cf9d | 1621 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
1da177e4 | 1622 | rc = -EIO; |
4ff96fa6 | 1623 | goto err_out_free_res_4; |
1da177e4 LT |
1624 | } |
1625 | ||
1626 | /* Unneeded ? Don't mess with Mrs. Murphy. */ | |
1627 | rtl8169_irq_mask_and_ack(ioaddr); | |
1628 | ||
1629 | /* Soft reset the chip. */ | |
1630 | RTL_W8(ChipCmd, CmdReset); | |
1631 | ||
1632 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 1633 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
1634 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1635 | break; | |
b518fa8e | 1636 | msleep_interruptible(1); |
1da177e4 LT |
1637 | } |
1638 | ||
1639 | /* Identify chip attached to board */ | |
1640 | rtl8169_get_mac_version(tp, ioaddr); | |
1641 | rtl8169_get_phy_version(tp, ioaddr); | |
1642 | ||
1643 | rtl8169_print_mac_version(tp); | |
1644 | rtl8169_print_phy_version(tp); | |
1645 | ||
1646 | for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { | |
1647 | if (tp->mac_version == rtl_chip_info[i].mac_version) | |
1648 | break; | |
1649 | } | |
1650 | if (i < 0) { | |
1651 | /* Unknown chip: assume array element #0, original RTL-8169 */ | |
b57b7e5a | 1652 | if (netif_msg_probe(tp)) { |
2e8a538d | 1653 | dev_printk(KERN_DEBUG, &pdev->dev, |
4ff96fa6 FR |
1654 | "unknown chip version, assuming %s\n", |
1655 | rtl_chip_info[0].name); | |
b57b7e5a | 1656 | } |
1da177e4 LT |
1657 | i++; |
1658 | } | |
1659 | tp->chipset = i; | |
1660 | ||
5d06a99f FR |
1661 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
1662 | RTL_W8(Config1, RTL_R8(Config1) | PMEnable); | |
1663 | RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); | |
fbac58fc | 1664 | tp->features |= rtl_try_msi(pdev, ioaddr, cfg); |
5d06a99f FR |
1665 | RTL_W8(Cfg9346, Cfg9346_Lock); |
1666 | ||
1da177e4 LT |
1667 | if (RTL_R8(PHYstatus) & TBI_Enable) { |
1668 | tp->set_speed = rtl8169_set_speed_tbi; | |
1669 | tp->get_settings = rtl8169_gset_tbi; | |
1670 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; | |
1671 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; | |
1672 | tp->link_ok = rtl8169_tbi_link_ok; | |
1673 | ||
64e4bfb4 | 1674 | tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ |
1da177e4 LT |
1675 | } else { |
1676 | tp->set_speed = rtl8169_set_speed_xmii; | |
1677 | tp->get_settings = rtl8169_gset_xmii; | |
1678 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; | |
1679 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; | |
1680 | tp->link_ok = rtl8169_xmii_link_ok; | |
5f787a1a FR |
1681 | |
1682 | dev->do_ioctl = rtl8169_ioctl; | |
1da177e4 LT |
1683 | } |
1684 | ||
1685 | /* Get MAC address. FIXME: read EEPROM */ | |
1686 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1687 | dev->dev_addr[i] = RTL_R8(MAC0 + i); | |
6d6525b7 | 1688 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
1689 | |
1690 | dev->open = rtl8169_open; | |
1691 | dev->hard_start_xmit = rtl8169_start_xmit; | |
1692 | dev->get_stats = rtl8169_get_stats; | |
1693 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); | |
1694 | dev->stop = rtl8169_close; | |
1695 | dev->tx_timeout = rtl8169_tx_timeout; | |
07ce4064 | 1696 | dev->set_multicast_list = rtl_set_rx_mode; |
1da177e4 LT |
1697 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
1698 | dev->irq = pdev->irq; | |
1699 | dev->base_addr = (unsigned long) ioaddr; | |
1700 | dev->change_mtu = rtl8169_change_mtu; | |
773d2021 | 1701 | dev->set_mac_address = rtl_set_mac_address; |
1da177e4 LT |
1702 | |
1703 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 1704 | netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT); |
1da177e4 LT |
1705 | #endif |
1706 | ||
1707 | #ifdef CONFIG_R8169_VLAN | |
1708 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1709 | dev->vlan_rx_register = rtl8169_vlan_rx_register; | |
1da177e4 LT |
1710 | #endif |
1711 | ||
1712 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1713 | dev->poll_controller = rtl8169_netpoll; | |
1714 | #endif | |
1715 | ||
1716 | tp->intr_mask = 0xffff; | |
1717 | tp->pci_dev = pdev; | |
1718 | tp->mmio_addr = ioaddr; | |
0e485150 FR |
1719 | tp->align = cfg->align; |
1720 | tp->hw_start = cfg->hw_start; | |
1721 | tp->intr_event = cfg->intr_event; | |
1722 | tp->napi_event = cfg->napi_event; | |
1da177e4 | 1723 | |
2efa53f3 FR |
1724 | init_timer(&tp->timer); |
1725 | tp->timer.data = (unsigned long) dev; | |
1726 | tp->timer.function = rtl8169_phy_timer; | |
1727 | ||
1da177e4 LT |
1728 | spin_lock_init(&tp->lock); |
1729 | ||
1730 | rc = register_netdev(dev); | |
4ff96fa6 | 1731 | if (rc < 0) |
fbac58fc | 1732 | goto err_out_msi_5; |
1da177e4 LT |
1733 | |
1734 | pci_set_drvdata(pdev, dev); | |
1735 | ||
b57b7e5a | 1736 | if (netif_msg_probe(tp)) { |
96b9709c FR |
1737 | u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff; |
1738 | ||
b57b7e5a SH |
1739 | printk(KERN_INFO "%s: %s at 0x%lx, " |
1740 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " | |
96b9709c | 1741 | "XID %08x IRQ %d\n", |
b57b7e5a | 1742 | dev->name, |
bcf0bf90 | 1743 | rtl_chip_info[tp->chipset].name, |
b57b7e5a SH |
1744 | dev->base_addr, |
1745 | dev->dev_addr[0], dev->dev_addr[1], | |
1746 | dev->dev_addr[2], dev->dev_addr[3], | |
96b9709c | 1747 | dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq); |
b57b7e5a | 1748 | } |
1da177e4 | 1749 | |
4ff96fa6 | 1750 | rtl8169_init_phy(dev, tp); |
1da177e4 | 1751 | |
4ff96fa6 FR |
1752 | out: |
1753 | return rc; | |
1da177e4 | 1754 | |
fbac58fc FR |
1755 | err_out_msi_5: |
1756 | rtl_disable_msi(pdev, tp); | |
4ff96fa6 FR |
1757 | iounmap(ioaddr); |
1758 | err_out_free_res_4: | |
1759 | pci_release_regions(pdev); | |
1760 | err_out_mwi_3: | |
1761 | pci_clear_mwi(pdev); | |
1762 | err_out_disable_2: | |
1763 | pci_disable_device(pdev); | |
1764 | err_out_free_dev_1: | |
1765 | free_netdev(dev); | |
1766 | goto out; | |
1da177e4 LT |
1767 | } |
1768 | ||
07d3f51f | 1769 | static void __devexit rtl8169_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
1770 | { |
1771 | struct net_device *dev = pci_get_drvdata(pdev); | |
1772 | struct rtl8169_private *tp = netdev_priv(dev); | |
1773 | ||
eb2a021c FR |
1774 | flush_scheduled_work(); |
1775 | ||
1da177e4 | 1776 | unregister_netdev(dev); |
fbac58fc | 1777 | rtl_disable_msi(pdev, tp); |
1da177e4 LT |
1778 | rtl8169_release_board(pdev, dev, tp->mmio_addr); |
1779 | pci_set_drvdata(pdev, NULL); | |
1780 | } | |
1781 | ||
1da177e4 LT |
1782 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, |
1783 | struct net_device *dev) | |
1784 | { | |
1785 | unsigned int mtu = dev->mtu; | |
1786 | ||
1787 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
1788 | } | |
1789 | ||
1790 | static int rtl8169_open(struct net_device *dev) | |
1791 | { | |
1792 | struct rtl8169_private *tp = netdev_priv(dev); | |
1793 | struct pci_dev *pdev = tp->pci_dev; | |
99f252b0 | 1794 | int retval = -ENOMEM; |
1da177e4 | 1795 | |
1da177e4 | 1796 | |
99f252b0 | 1797 | rtl8169_set_rxbufsize(tp, dev); |
1da177e4 LT |
1798 | |
1799 | /* | |
1800 | * Rx and Tx desscriptors needs 256 bytes alignment. | |
1801 | * pci_alloc_consistent provides more. | |
1802 | */ | |
1803 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, | |
1804 | &tp->TxPhyAddr); | |
1805 | if (!tp->TxDescArray) | |
99f252b0 | 1806 | goto out; |
1da177e4 LT |
1807 | |
1808 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, | |
1809 | &tp->RxPhyAddr); | |
1810 | if (!tp->RxDescArray) | |
99f252b0 | 1811 | goto err_free_tx_0; |
1da177e4 LT |
1812 | |
1813 | retval = rtl8169_init_ring(dev); | |
1814 | if (retval < 0) | |
99f252b0 | 1815 | goto err_free_rx_1; |
1da177e4 | 1816 | |
c4028958 | 1817 | INIT_DELAYED_WORK(&tp->task, NULL); |
1da177e4 | 1818 | |
99f252b0 FR |
1819 | smp_mb(); |
1820 | ||
fbac58fc FR |
1821 | retval = request_irq(dev->irq, rtl8169_interrupt, |
1822 | (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED, | |
99f252b0 FR |
1823 | dev->name, dev); |
1824 | if (retval < 0) | |
1825 | goto err_release_ring_2; | |
1826 | ||
bea3348e SH |
1827 | #ifdef CONFIG_R8169_NAPI |
1828 | napi_enable(&tp->napi); | |
1829 | #endif | |
1830 | ||
07ce4064 | 1831 | rtl_hw_start(dev); |
1da177e4 LT |
1832 | |
1833 | rtl8169_request_timer(dev); | |
1834 | ||
1835 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); | |
1836 | out: | |
1837 | return retval; | |
1838 | ||
99f252b0 FR |
1839 | err_release_ring_2: |
1840 | rtl8169_rx_clear(tp); | |
1841 | err_free_rx_1: | |
1da177e4 LT |
1842 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
1843 | tp->RxPhyAddr); | |
99f252b0 | 1844 | err_free_tx_0: |
1da177e4 LT |
1845 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
1846 | tp->TxPhyAddr); | |
1da177e4 LT |
1847 | goto out; |
1848 | } | |
1849 | ||
1850 | static void rtl8169_hw_reset(void __iomem *ioaddr) | |
1851 | { | |
1852 | /* Disable interrupts */ | |
1853 | rtl8169_irq_mask_and_ack(ioaddr); | |
1854 | ||
1855 | /* Reset the chipset */ | |
1856 | RTL_W8(ChipCmd, CmdReset); | |
1857 | ||
1858 | /* PCI commit */ | |
1859 | RTL_R8(ChipCmd); | |
1860 | } | |
1861 | ||
7f796d83 | 1862 | static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) |
9cb427b6 FR |
1863 | { |
1864 | void __iomem *ioaddr = tp->mmio_addr; | |
1865 | u32 cfg = rtl8169_rx_config; | |
1866 | ||
1867 | cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
1868 | RTL_W32(RxConfig, cfg); | |
1869 | ||
1870 | /* Set DMA burst size and Interframe Gap Time */ | |
1871 | RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | | |
1872 | (InterFrameGap << TxInterFrameGapShift)); | |
1873 | } | |
1874 | ||
07ce4064 | 1875 | static void rtl_hw_start(struct net_device *dev) |
1da177e4 LT |
1876 | { |
1877 | struct rtl8169_private *tp = netdev_priv(dev); | |
1878 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 1879 | unsigned int i; |
1da177e4 LT |
1880 | |
1881 | /* Soft reset the chip. */ | |
1882 | RTL_W8(ChipCmd, CmdReset); | |
1883 | ||
1884 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 1885 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
1886 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1887 | break; | |
b518fa8e | 1888 | msleep_interruptible(1); |
1da177e4 LT |
1889 | } |
1890 | ||
07ce4064 FR |
1891 | tp->hw_start(dev); |
1892 | ||
07ce4064 FR |
1893 | netif_start_queue(dev); |
1894 | } | |
1895 | ||
1896 | ||
7f796d83 FR |
1897 | static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp, |
1898 | void __iomem *ioaddr) | |
1899 | { | |
1900 | /* | |
1901 | * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh | |
1902 | * register to be written before TxDescAddrLow to work. | |
1903 | * Switching from MMIO to I/O access fixes the issue as well. | |
1904 | */ | |
1905 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32); | |
1906 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK); | |
1907 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32); | |
1908 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK); | |
1909 | } | |
1910 | ||
1911 | static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) | |
1912 | { | |
1913 | u16 cmd; | |
1914 | ||
1915 | cmd = RTL_R16(CPlusCmd); | |
1916 | RTL_W16(CPlusCmd, cmd); | |
1917 | return cmd; | |
1918 | } | |
1919 | ||
1920 | static void rtl_set_rx_max_size(void __iomem *ioaddr) | |
1921 | { | |
1922 | /* Low hurts. Let's disable the filtering. */ | |
1923 | RTL_W16(RxMaxSize, 16383); | |
1924 | } | |
1925 | ||
6dccd16b FR |
1926 | static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) |
1927 | { | |
1928 | struct { | |
1929 | u32 mac_version; | |
1930 | u32 clk; | |
1931 | u32 val; | |
1932 | } cfg2_info [] = { | |
1933 | { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd | |
1934 | { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff }, | |
1935 | { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe | |
1936 | { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff } | |
1937 | }, *p = cfg2_info; | |
1938 | unsigned int i; | |
1939 | u32 clk; | |
1940 | ||
1941 | clk = RTL_R8(Config2) & PCI_Clock_66MHz; | |
1942 | for (i = 0; i < ARRAY_SIZE(cfg2_info); i++) { | |
1943 | if ((p->mac_version == mac_version) && (p->clk == clk)) { | |
1944 | RTL_W32(0x7c, p->val); | |
1945 | break; | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | ||
07ce4064 FR |
1950 | static void rtl_hw_start_8169(struct net_device *dev) |
1951 | { | |
1952 | struct rtl8169_private *tp = netdev_priv(dev); | |
1953 | void __iomem *ioaddr = tp->mmio_addr; | |
1954 | struct pci_dev *pdev = tp->pci_dev; | |
07ce4064 | 1955 | |
9cb427b6 FR |
1956 | if (tp->mac_version == RTL_GIGA_MAC_VER_05) { |
1957 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); | |
1958 | pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); | |
1959 | } | |
1960 | ||
1da177e4 | 1961 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
9cb427b6 FR |
1962 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1963 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1964 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1965 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
1966 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1967 | ||
1da177e4 LT |
1968 | RTL_W8(EarlyTxThres, EarlyTxThld); |
1969 | ||
7f796d83 | 1970 | rtl_set_rx_max_size(ioaddr); |
1da177e4 | 1971 | |
c946b304 FR |
1972 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1973 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1974 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1975 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
1976 | rtl_set_rx_tx_config_registers(tp); | |
1da177e4 | 1977 | |
7f796d83 | 1978 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; |
1da177e4 | 1979 | |
bcf0bf90 FR |
1980 | if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || |
1981 | (tp->mac_version == RTL_GIGA_MAC_VER_03)) { | |
06fa7358 | 1982 | dprintk("Set MAC Reg C+CR Offset 0xE0. " |
1da177e4 | 1983 | "Bit-3 and bit-14 MUST be 1\n"); |
bcf0bf90 | 1984 | tp->cp_cmd |= (1 << 14); |
1da177e4 LT |
1985 | } |
1986 | ||
bcf0bf90 FR |
1987 | RTL_W16(CPlusCmd, tp->cp_cmd); |
1988 | ||
6dccd16b FR |
1989 | rtl8169_set_magic_reg(ioaddr, tp->mac_version); |
1990 | ||
1da177e4 LT |
1991 | /* |
1992 | * Undocumented corner. Supposedly: | |
1993 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets | |
1994 | */ | |
1995 | RTL_W16(IntrMitigate, 0x0000); | |
1996 | ||
7f796d83 | 1997 | rtl_set_rx_tx_desc_registers(tp, ioaddr); |
9cb427b6 | 1998 | |
c946b304 FR |
1999 | if ((tp->mac_version != RTL_GIGA_MAC_VER_01) && |
2000 | (tp->mac_version != RTL_GIGA_MAC_VER_02) && | |
2001 | (tp->mac_version != RTL_GIGA_MAC_VER_03) && | |
2002 | (tp->mac_version != RTL_GIGA_MAC_VER_04)) { | |
2003 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2004 | rtl_set_rx_tx_config_registers(tp); | |
2005 | } | |
2006 | ||
1da177e4 | 2007 | RTL_W8(Cfg9346, Cfg9346_Lock); |
b518fa8e FR |
2008 | |
2009 | /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ | |
2010 | RTL_R8(IntrMask); | |
1da177e4 LT |
2011 | |
2012 | RTL_W32(RxMissed, 0); | |
2013 | ||
07ce4064 | 2014 | rtl_set_rx_mode(dev); |
1da177e4 LT |
2015 | |
2016 | /* no early-rx interrupts */ | |
2017 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); | |
6dccd16b FR |
2018 | |
2019 | /* Enable all known interrupts by setting the interrupt mask. */ | |
0e485150 | 2020 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 2021 | } |
1da177e4 | 2022 | |
07ce4064 FR |
2023 | static void rtl_hw_start_8168(struct net_device *dev) |
2024 | { | |
2dd99530 FR |
2025 | struct rtl8169_private *tp = netdev_priv(dev); |
2026 | void __iomem *ioaddr = tp->mmio_addr; | |
0e485150 FR |
2027 | struct pci_dev *pdev = tp->pci_dev; |
2028 | u8 ctl; | |
2dd99530 FR |
2029 | |
2030 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
2031 | ||
2032 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
2033 | ||
2034 | rtl_set_rx_max_size(ioaddr); | |
2035 | ||
0e485150 FR |
2036 | rtl_set_rx_tx_config_registers(tp); |
2037 | ||
2038 | tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; | |
2dd99530 FR |
2039 | |
2040 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2041 | ||
0e485150 FR |
2042 | /* Tx performance tweak. */ |
2043 | pci_read_config_byte(pdev, 0x69, &ctl); | |
2044 | ctl = (ctl & ~0x70) | 0x50; | |
2045 | pci_write_config_byte(pdev, 0x69, ctl); | |
2dd99530 | 2046 | |
0e485150 | 2047 | RTL_W16(IntrMitigate, 0x5151); |
2dd99530 | 2048 | |
0e485150 FR |
2049 | /* Work around for RxFIFO overflow. */ |
2050 | if (tp->mac_version == RTL_GIGA_MAC_VER_11) { | |
2051 | tp->intr_event |= RxFIFOOver | PCSTimeout; | |
2052 | tp->intr_event &= ~RxOverflow; | |
2053 | } | |
2054 | ||
2055 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2dd99530 FR |
2056 | |
2057 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2058 | ||
2059 | RTL_R8(IntrMask); | |
2060 | ||
2061 | RTL_W32(RxMissed, 0); | |
2062 | ||
2063 | rtl_set_rx_mode(dev); | |
2064 | ||
0e485150 FR |
2065 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2066 | ||
2dd99530 | 2067 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); |
6dccd16b | 2068 | |
0e485150 | 2069 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 2070 | } |
1da177e4 | 2071 | |
07ce4064 FR |
2072 | static void rtl_hw_start_8101(struct net_device *dev) |
2073 | { | |
cdf1a608 FR |
2074 | struct rtl8169_private *tp = netdev_priv(dev); |
2075 | void __iomem *ioaddr = tp->mmio_addr; | |
2076 | struct pci_dev *pdev = tp->pci_dev; | |
2077 | ||
2078 | if (tp->mac_version == RTL_GIGA_MAC_VER_13) { | |
2079 | pci_write_config_word(pdev, 0x68, 0x00); | |
2080 | pci_write_config_word(pdev, 0x69, 0x08); | |
2081 | } | |
2082 | ||
2083 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
2084 | ||
2085 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
2086 | ||
2087 | rtl_set_rx_max_size(ioaddr); | |
2088 | ||
2089 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; | |
2090 | ||
2091 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2092 | ||
2093 | RTL_W16(IntrMitigate, 0x0000); | |
2094 | ||
2095 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2096 | ||
2097 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2098 | rtl_set_rx_tx_config_registers(tp); | |
2099 | ||
2100 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2101 | ||
2102 | RTL_R8(IntrMask); | |
2103 | ||
2104 | RTL_W32(RxMissed, 0); | |
2105 | ||
2106 | rtl_set_rx_mode(dev); | |
2107 | ||
0e485150 FR |
2108 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2109 | ||
cdf1a608 | 2110 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000); |
6dccd16b | 2111 | |
0e485150 | 2112 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
2113 | } |
2114 | ||
2115 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) | |
2116 | { | |
2117 | struct rtl8169_private *tp = netdev_priv(dev); | |
2118 | int ret = 0; | |
2119 | ||
2120 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) | |
2121 | return -EINVAL; | |
2122 | ||
2123 | dev->mtu = new_mtu; | |
2124 | ||
2125 | if (!netif_running(dev)) | |
2126 | goto out; | |
2127 | ||
2128 | rtl8169_down(dev); | |
2129 | ||
2130 | rtl8169_set_rxbufsize(tp, dev); | |
2131 | ||
2132 | ret = rtl8169_init_ring(dev); | |
2133 | if (ret < 0) | |
2134 | goto out; | |
2135 | ||
bea3348e SH |
2136 | #ifdef CONFIG_R8169_NAPI |
2137 | napi_enable(&tp->napi); | |
2138 | #endif | |
1da177e4 | 2139 | |
07ce4064 | 2140 | rtl_hw_start(dev); |
1da177e4 LT |
2141 | |
2142 | rtl8169_request_timer(dev); | |
2143 | ||
2144 | out: | |
2145 | return ret; | |
2146 | } | |
2147 | ||
2148 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) | |
2149 | { | |
2150 | desc->addr = 0x0badbadbadbadbadull; | |
2151 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); | |
2152 | } | |
2153 | ||
2154 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, | |
2155 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
2156 | { | |
2157 | struct pci_dev *pdev = tp->pci_dev; | |
2158 | ||
2159 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
2160 | PCI_DMA_FROMDEVICE); | |
2161 | dev_kfree_skb(*sk_buff); | |
2162 | *sk_buff = NULL; | |
2163 | rtl8169_make_unusable_by_asic(desc); | |
2164 | } | |
2165 | ||
2166 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
2167 | { | |
2168 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; | |
2169 | ||
2170 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); | |
2171 | } | |
2172 | ||
2173 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
2174 | u32 rx_buf_sz) | |
2175 | { | |
2176 | desc->addr = cpu_to_le64(mapping); | |
2177 | wmb(); | |
2178 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
2179 | } | |
2180 | ||
15d31758 SH |
2181 | static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev, |
2182 | struct net_device *dev, | |
2183 | struct RxDesc *desc, int rx_buf_sz, | |
2184 | unsigned int align) | |
1da177e4 LT |
2185 | { |
2186 | struct sk_buff *skb; | |
2187 | dma_addr_t mapping; | |
e9f63f30 | 2188 | unsigned int pad; |
1da177e4 | 2189 | |
e9f63f30 FR |
2190 | pad = align ? align : NET_IP_ALIGN; |
2191 | ||
2192 | skb = netdev_alloc_skb(dev, rx_buf_sz + pad); | |
1da177e4 LT |
2193 | if (!skb) |
2194 | goto err_out; | |
2195 | ||
e9f63f30 | 2196 | skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad); |
1da177e4 | 2197 | |
689be439 | 2198 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
1da177e4 LT |
2199 | PCI_DMA_FROMDEVICE); |
2200 | ||
2201 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); | |
1da177e4 | 2202 | out: |
15d31758 | 2203 | return skb; |
1da177e4 LT |
2204 | |
2205 | err_out: | |
1da177e4 LT |
2206 | rtl8169_make_unusable_by_asic(desc); |
2207 | goto out; | |
2208 | } | |
2209 | ||
2210 | static void rtl8169_rx_clear(struct rtl8169_private *tp) | |
2211 | { | |
07d3f51f | 2212 | unsigned int i; |
1da177e4 LT |
2213 | |
2214 | for (i = 0; i < NUM_RX_DESC; i++) { | |
2215 | if (tp->Rx_skbuff[i]) { | |
2216 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, | |
2217 | tp->RxDescArray + i); | |
2218 | } | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, | |
2223 | u32 start, u32 end) | |
2224 | { | |
2225 | u32 cur; | |
5b0384f4 | 2226 | |
4ae47c2d | 2227 | for (cur = start; end - cur != 0; cur++) { |
15d31758 SH |
2228 | struct sk_buff *skb; |
2229 | unsigned int i = cur % NUM_RX_DESC; | |
1da177e4 | 2230 | |
4ae47c2d FR |
2231 | WARN_ON((s32)(end - cur) < 0); |
2232 | ||
1da177e4 LT |
2233 | if (tp->Rx_skbuff[i]) |
2234 | continue; | |
bcf0bf90 | 2235 | |
15d31758 SH |
2236 | skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev, |
2237 | tp->RxDescArray + i, | |
2238 | tp->rx_buf_sz, tp->align); | |
2239 | if (!skb) | |
1da177e4 | 2240 | break; |
15d31758 SH |
2241 | |
2242 | tp->Rx_skbuff[i] = skb; | |
1da177e4 LT |
2243 | } |
2244 | return cur - start; | |
2245 | } | |
2246 | ||
2247 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) | |
2248 | { | |
2249 | desc->opts1 |= cpu_to_le32(RingEnd); | |
2250 | } | |
2251 | ||
2252 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) | |
2253 | { | |
2254 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
2255 | } | |
2256 | ||
2257 | static int rtl8169_init_ring(struct net_device *dev) | |
2258 | { | |
2259 | struct rtl8169_private *tp = netdev_priv(dev); | |
2260 | ||
2261 | rtl8169_init_ring_indexes(tp); | |
2262 | ||
2263 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); | |
2264 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
2265 | ||
2266 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
2267 | goto err_out; | |
2268 | ||
2269 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); | |
2270 | ||
2271 | return 0; | |
2272 | ||
2273 | err_out: | |
2274 | rtl8169_rx_clear(tp); | |
2275 | return -ENOMEM; | |
2276 | } | |
2277 | ||
2278 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, | |
2279 | struct TxDesc *desc) | |
2280 | { | |
2281 | unsigned int len = tx_skb->len; | |
2282 | ||
2283 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
2284 | desc->opts1 = 0x00; | |
2285 | desc->opts2 = 0x00; | |
2286 | desc->addr = 0x00; | |
2287 | tx_skb->len = 0; | |
2288 | } | |
2289 | ||
2290 | static void rtl8169_tx_clear(struct rtl8169_private *tp) | |
2291 | { | |
2292 | unsigned int i; | |
2293 | ||
2294 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { | |
2295 | unsigned int entry = i % NUM_TX_DESC; | |
2296 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2297 | unsigned int len = tx_skb->len; | |
2298 | ||
2299 | if (len) { | |
2300 | struct sk_buff *skb = tx_skb->skb; | |
2301 | ||
2302 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, | |
2303 | tp->TxDescArray + entry); | |
2304 | if (skb) { | |
2305 | dev_kfree_skb(skb); | |
2306 | tx_skb->skb = NULL; | |
2307 | } | |
2308 | tp->stats.tx_dropped++; | |
2309 | } | |
2310 | } | |
2311 | tp->cur_tx = tp->dirty_tx = 0; | |
2312 | } | |
2313 | ||
c4028958 | 2314 | static void rtl8169_schedule_work(struct net_device *dev, work_func_t task) |
1da177e4 LT |
2315 | { |
2316 | struct rtl8169_private *tp = netdev_priv(dev); | |
2317 | ||
c4028958 | 2318 | PREPARE_DELAYED_WORK(&tp->task, task); |
1da177e4 LT |
2319 | schedule_delayed_work(&tp->task, 4); |
2320 | } | |
2321 | ||
2322 | static void rtl8169_wait_for_quiescence(struct net_device *dev) | |
2323 | { | |
2324 | struct rtl8169_private *tp = netdev_priv(dev); | |
2325 | void __iomem *ioaddr = tp->mmio_addr; | |
2326 | ||
2327 | synchronize_irq(dev->irq); | |
2328 | ||
2329 | /* Wait for any pending NAPI task to complete */ | |
bea3348e SH |
2330 | #ifdef CONFIG_R8169_NAPI |
2331 | napi_disable(&tp->napi); | |
2332 | #endif | |
1da177e4 LT |
2333 | |
2334 | rtl8169_irq_mask_and_ack(ioaddr); | |
2335 | ||
bea3348e SH |
2336 | #ifdef CONFIG_R8169_NAPI |
2337 | napi_enable(&tp->napi); | |
2338 | #endif | |
1da177e4 LT |
2339 | } |
2340 | ||
c4028958 | 2341 | static void rtl8169_reinit_task(struct work_struct *work) |
1da177e4 | 2342 | { |
c4028958 DH |
2343 | struct rtl8169_private *tp = |
2344 | container_of(work, struct rtl8169_private, task.work); | |
2345 | struct net_device *dev = tp->dev; | |
1da177e4 LT |
2346 | int ret; |
2347 | ||
eb2a021c FR |
2348 | rtnl_lock(); |
2349 | ||
2350 | if (!netif_running(dev)) | |
2351 | goto out_unlock; | |
2352 | ||
2353 | rtl8169_wait_for_quiescence(dev); | |
2354 | rtl8169_close(dev); | |
1da177e4 LT |
2355 | |
2356 | ret = rtl8169_open(dev); | |
2357 | if (unlikely(ret < 0)) { | |
07d3f51f | 2358 | if (net_ratelimit() && netif_msg_drv(tp)) { |
53edbecd | 2359 | printk(KERN_ERR PFX "%s: reinit failure (status = %d)." |
07d3f51f | 2360 | " Rescheduling.\n", dev->name, ret); |
1da177e4 LT |
2361 | } |
2362 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2363 | } | |
eb2a021c FR |
2364 | |
2365 | out_unlock: | |
2366 | rtnl_unlock(); | |
1da177e4 LT |
2367 | } |
2368 | ||
c4028958 | 2369 | static void rtl8169_reset_task(struct work_struct *work) |
1da177e4 | 2370 | { |
c4028958 DH |
2371 | struct rtl8169_private *tp = |
2372 | container_of(work, struct rtl8169_private, task.work); | |
2373 | struct net_device *dev = tp->dev; | |
1da177e4 | 2374 | |
eb2a021c FR |
2375 | rtnl_lock(); |
2376 | ||
1da177e4 | 2377 | if (!netif_running(dev)) |
eb2a021c | 2378 | goto out_unlock; |
1da177e4 LT |
2379 | |
2380 | rtl8169_wait_for_quiescence(dev); | |
2381 | ||
bea3348e | 2382 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0); |
1da177e4 LT |
2383 | rtl8169_tx_clear(tp); |
2384 | ||
2385 | if (tp->dirty_rx == tp->cur_rx) { | |
2386 | rtl8169_init_ring_indexes(tp); | |
07ce4064 | 2387 | rtl_hw_start(dev); |
1da177e4 LT |
2388 | netif_wake_queue(dev); |
2389 | } else { | |
07d3f51f | 2390 | if (net_ratelimit() && netif_msg_intr(tp)) { |
53edbecd | 2391 | printk(KERN_EMERG PFX "%s: Rx buffers shortage\n", |
07d3f51f | 2392 | dev->name); |
1da177e4 LT |
2393 | } |
2394 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2395 | } | |
eb2a021c FR |
2396 | |
2397 | out_unlock: | |
2398 | rtnl_unlock(); | |
1da177e4 LT |
2399 | } |
2400 | ||
2401 | static void rtl8169_tx_timeout(struct net_device *dev) | |
2402 | { | |
2403 | struct rtl8169_private *tp = netdev_priv(dev); | |
2404 | ||
2405 | rtl8169_hw_reset(tp->mmio_addr); | |
2406 | ||
2407 | /* Let's wait a bit while any (async) irq lands on */ | |
2408 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2409 | } | |
2410 | ||
2411 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, | |
2412 | u32 opts1) | |
2413 | { | |
2414 | struct skb_shared_info *info = skb_shinfo(skb); | |
2415 | unsigned int cur_frag, entry; | |
a6343afb | 2416 | struct TxDesc * uninitialized_var(txd); |
1da177e4 LT |
2417 | |
2418 | entry = tp->cur_tx; | |
2419 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { | |
2420 | skb_frag_t *frag = info->frags + cur_frag; | |
2421 | dma_addr_t mapping; | |
2422 | u32 status, len; | |
2423 | void *addr; | |
2424 | ||
2425 | entry = (entry + 1) % NUM_TX_DESC; | |
2426 | ||
2427 | txd = tp->TxDescArray + entry; | |
2428 | len = frag->size; | |
2429 | addr = ((void *) page_address(frag->page)) + frag->page_offset; | |
2430 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); | |
2431 | ||
2432 | /* anti gcc 2.95.3 bugware (sic) */ | |
2433 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2434 | ||
2435 | txd->opts1 = cpu_to_le32(status); | |
2436 | txd->addr = cpu_to_le64(mapping); | |
2437 | ||
2438 | tp->tx_skb[entry].len = len; | |
2439 | } | |
2440 | ||
2441 | if (cur_frag) { | |
2442 | tp->tx_skb[entry].skb = skb; | |
2443 | txd->opts1 |= cpu_to_le32(LastFrag); | |
2444 | } | |
2445 | ||
2446 | return cur_frag; | |
2447 | } | |
2448 | ||
2449 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) | |
2450 | { | |
2451 | if (dev->features & NETIF_F_TSO) { | |
7967168c | 2452 | u32 mss = skb_shinfo(skb)->gso_size; |
1da177e4 LT |
2453 | |
2454 | if (mss) | |
2455 | return LargeSend | ((mss & MSSMask) << MSSShift); | |
2456 | } | |
84fa7933 | 2457 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
eddc9ec5 | 2458 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
2459 | |
2460 | if (ip->protocol == IPPROTO_TCP) | |
2461 | return IPCS | TCPCS; | |
2462 | else if (ip->protocol == IPPROTO_UDP) | |
2463 | return IPCS | UDPCS; | |
2464 | WARN_ON(1); /* we need a WARN() */ | |
2465 | } | |
2466 | return 0; | |
2467 | } | |
2468 | ||
2469 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2470 | { | |
2471 | struct rtl8169_private *tp = netdev_priv(dev); | |
2472 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; | |
2473 | struct TxDesc *txd = tp->TxDescArray + entry; | |
2474 | void __iomem *ioaddr = tp->mmio_addr; | |
2475 | dma_addr_t mapping; | |
2476 | u32 status, len; | |
2477 | u32 opts1; | |
188f4af0 | 2478 | int ret = NETDEV_TX_OK; |
5b0384f4 | 2479 | |
1da177e4 | 2480 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { |
b57b7e5a SH |
2481 | if (netif_msg_drv(tp)) { |
2482 | printk(KERN_ERR | |
2483 | "%s: BUG! Tx Ring full when queue awake!\n", | |
2484 | dev->name); | |
2485 | } | |
1da177e4 LT |
2486 | goto err_stop; |
2487 | } | |
2488 | ||
2489 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) | |
2490 | goto err_stop; | |
2491 | ||
2492 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); | |
2493 | ||
2494 | frags = rtl8169_xmit_frags(tp, skb, opts1); | |
2495 | if (frags) { | |
2496 | len = skb_headlen(skb); | |
2497 | opts1 |= FirstFrag; | |
2498 | } else { | |
2499 | len = skb->len; | |
2500 | ||
2501 | if (unlikely(len < ETH_ZLEN)) { | |
5b057c6b | 2502 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
2503 | goto err_update_stats; |
2504 | len = ETH_ZLEN; | |
2505 | } | |
2506 | ||
2507 | opts1 |= FirstFrag | LastFrag; | |
2508 | tp->tx_skb[entry].skb = skb; | |
2509 | } | |
2510 | ||
2511 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
2512 | ||
2513 | tp->tx_skb[entry].len = len; | |
2514 | txd->addr = cpu_to_le64(mapping); | |
2515 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); | |
2516 | ||
2517 | wmb(); | |
2518 | ||
2519 | /* anti gcc 2.95.3 bugware (sic) */ | |
2520 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2521 | txd->opts1 = cpu_to_le32(status); | |
2522 | ||
2523 | dev->trans_start = jiffies; | |
2524 | ||
2525 | tp->cur_tx += frags + 1; | |
2526 | ||
2527 | smp_wmb(); | |
2528 | ||
275391a4 | 2529 | RTL_W8(TxPoll, NPQ); /* set polling bit */ |
1da177e4 LT |
2530 | |
2531 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { | |
2532 | netif_stop_queue(dev); | |
2533 | smp_rmb(); | |
2534 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) | |
2535 | netif_wake_queue(dev); | |
2536 | } | |
2537 | ||
2538 | out: | |
2539 | return ret; | |
2540 | ||
2541 | err_stop: | |
2542 | netif_stop_queue(dev); | |
188f4af0 | 2543 | ret = NETDEV_TX_BUSY; |
1da177e4 LT |
2544 | err_update_stats: |
2545 | tp->stats.tx_dropped++; | |
2546 | goto out; | |
2547 | } | |
2548 | ||
2549 | static void rtl8169_pcierr_interrupt(struct net_device *dev) | |
2550 | { | |
2551 | struct rtl8169_private *tp = netdev_priv(dev); | |
2552 | struct pci_dev *pdev = tp->pci_dev; | |
2553 | void __iomem *ioaddr = tp->mmio_addr; | |
2554 | u16 pci_status, pci_cmd; | |
2555 | ||
2556 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); | |
2557 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
2558 | ||
b57b7e5a SH |
2559 | if (netif_msg_intr(tp)) { |
2560 | printk(KERN_ERR | |
2561 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", | |
2562 | dev->name, pci_cmd, pci_status); | |
2563 | } | |
1da177e4 LT |
2564 | |
2565 | /* | |
2566 | * The recovery sequence below admits a very elaborated explanation: | |
2567 | * - it seems to work; | |
d03902b8 FR |
2568 | * - I did not see what else could be done; |
2569 | * - it makes iop3xx happy. | |
1da177e4 LT |
2570 | * |
2571 | * Feel free to adjust to your needs. | |
2572 | */ | |
a27993f3 | 2573 | if (pdev->broken_parity_status) |
d03902b8 FR |
2574 | pci_cmd &= ~PCI_COMMAND_PARITY; |
2575 | else | |
2576 | pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; | |
2577 | ||
2578 | pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); | |
1da177e4 LT |
2579 | |
2580 | pci_write_config_word(pdev, PCI_STATUS, | |
2581 | pci_status & (PCI_STATUS_DETECTED_PARITY | | |
2582 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | | |
2583 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); | |
2584 | ||
2585 | /* The infamous DAC f*ckup only happens at boot time */ | |
2586 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { | |
b57b7e5a SH |
2587 | if (netif_msg_intr(tp)) |
2588 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); | |
1da177e4 LT |
2589 | tp->cp_cmd &= ~PCIDAC; |
2590 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2591 | dev->features &= ~NETIF_F_HIGHDMA; | |
1da177e4 LT |
2592 | } |
2593 | ||
2594 | rtl8169_hw_reset(ioaddr); | |
d03902b8 FR |
2595 | |
2596 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
1da177e4 LT |
2597 | } |
2598 | ||
07d3f51f FR |
2599 | static void rtl8169_tx_interrupt(struct net_device *dev, |
2600 | struct rtl8169_private *tp, | |
2601 | void __iomem *ioaddr) | |
1da177e4 LT |
2602 | { |
2603 | unsigned int dirty_tx, tx_left; | |
2604 | ||
1da177e4 LT |
2605 | dirty_tx = tp->dirty_tx; |
2606 | smp_rmb(); | |
2607 | tx_left = tp->cur_tx - dirty_tx; | |
2608 | ||
2609 | while (tx_left > 0) { | |
2610 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
2611 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2612 | u32 len = tx_skb->len; | |
2613 | u32 status; | |
2614 | ||
2615 | rmb(); | |
2616 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); | |
2617 | if (status & DescOwn) | |
2618 | break; | |
2619 | ||
2620 | tp->stats.tx_bytes += len; | |
2621 | tp->stats.tx_packets++; | |
2622 | ||
2623 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); | |
2624 | ||
2625 | if (status & LastFrag) { | |
2626 | dev_kfree_skb_irq(tx_skb->skb); | |
2627 | tx_skb->skb = NULL; | |
2628 | } | |
2629 | dirty_tx++; | |
2630 | tx_left--; | |
2631 | } | |
2632 | ||
2633 | if (tp->dirty_tx != dirty_tx) { | |
2634 | tp->dirty_tx = dirty_tx; | |
2635 | smp_wmb(); | |
2636 | if (netif_queue_stopped(dev) && | |
2637 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { | |
2638 | netif_wake_queue(dev); | |
2639 | } | |
d78ae2dc FR |
2640 | /* |
2641 | * 8168 hack: TxPoll requests are lost when the Tx packets are | |
2642 | * too close. Let's kick an extra TxPoll request when a burst | |
2643 | * of start_xmit activity is detected (if it is not detected, | |
2644 | * it is slow enough). -- FR | |
2645 | */ | |
2646 | smp_rmb(); | |
2647 | if (tp->cur_tx != dirty_tx) | |
2648 | RTL_W8(TxPoll, NPQ); | |
1da177e4 LT |
2649 | } |
2650 | } | |
2651 | ||
126fa4b9 FR |
2652 | static inline int rtl8169_fragmented_frame(u32 status) |
2653 | { | |
2654 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); | |
2655 | } | |
2656 | ||
1da177e4 LT |
2657 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
2658 | { | |
2659 | u32 opts1 = le32_to_cpu(desc->opts1); | |
2660 | u32 status = opts1 & RxProtoMask; | |
2661 | ||
2662 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || | |
2663 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || | |
2664 | ((status == RxProtoIP) && !(opts1 & IPFail))) | |
2665 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2666 | else | |
2667 | skb->ip_summed = CHECKSUM_NONE; | |
2668 | } | |
2669 | ||
07d3f51f FR |
2670 | static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff, |
2671 | struct rtl8169_private *tp, int pkt_size, | |
2672 | dma_addr_t addr) | |
1da177e4 | 2673 | { |
b449655f SH |
2674 | struct sk_buff *skb; |
2675 | bool done = false; | |
1da177e4 | 2676 | |
b449655f SH |
2677 | if (pkt_size >= rx_copybreak) |
2678 | goto out; | |
1da177e4 | 2679 | |
07d3f51f | 2680 | skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN); |
b449655f SH |
2681 | if (!skb) |
2682 | goto out; | |
2683 | ||
07d3f51f FR |
2684 | pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size, |
2685 | PCI_DMA_FROMDEVICE); | |
86402234 | 2686 | skb_reserve(skb, NET_IP_ALIGN); |
b449655f SH |
2687 | skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size); |
2688 | *sk_buff = skb; | |
2689 | done = true; | |
2690 | out: | |
2691 | return done; | |
1da177e4 LT |
2692 | } |
2693 | ||
07d3f51f FR |
2694 | static int rtl8169_rx_interrupt(struct net_device *dev, |
2695 | struct rtl8169_private *tp, | |
bea3348e | 2696 | void __iomem *ioaddr, u32 budget) |
1da177e4 LT |
2697 | { |
2698 | unsigned int cur_rx, rx_left; | |
2699 | unsigned int delta, count; | |
2700 | ||
1da177e4 LT |
2701 | cur_rx = tp->cur_rx; |
2702 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
bea3348e | 2703 | rx_left = rtl8169_rx_quota(rx_left, budget); |
1da177e4 | 2704 | |
4dcb7d33 | 2705 | for (; rx_left > 0; rx_left--, cur_rx++) { |
1da177e4 | 2706 | unsigned int entry = cur_rx % NUM_RX_DESC; |
126fa4b9 | 2707 | struct RxDesc *desc = tp->RxDescArray + entry; |
1da177e4 LT |
2708 | u32 status; |
2709 | ||
2710 | rmb(); | |
126fa4b9 | 2711 | status = le32_to_cpu(desc->opts1); |
1da177e4 LT |
2712 | |
2713 | if (status & DescOwn) | |
2714 | break; | |
4dcb7d33 | 2715 | if (unlikely(status & RxRES)) { |
b57b7e5a SH |
2716 | if (netif_msg_rx_err(tp)) { |
2717 | printk(KERN_INFO | |
2718 | "%s: Rx ERROR. status = %08x\n", | |
2719 | dev->name, status); | |
2720 | } | |
1da177e4 LT |
2721 | tp->stats.rx_errors++; |
2722 | if (status & (RxRWT | RxRUNT)) | |
2723 | tp->stats.rx_length_errors++; | |
2724 | if (status & RxCRC) | |
2725 | tp->stats.rx_crc_errors++; | |
9dccf611 FR |
2726 | if (status & RxFOVF) { |
2727 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2728 | tp->stats.rx_fifo_errors++; | |
2729 | } | |
126fa4b9 | 2730 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
1da177e4 | 2731 | } else { |
1da177e4 | 2732 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
b449655f | 2733 | dma_addr_t addr = le64_to_cpu(desc->addr); |
1da177e4 | 2734 | int pkt_size = (status & 0x00001FFF) - 4; |
b449655f | 2735 | struct pci_dev *pdev = tp->pci_dev; |
1da177e4 | 2736 | |
126fa4b9 FR |
2737 | /* |
2738 | * The driver does not support incoming fragmented | |
2739 | * frames. They are seen as a symptom of over-mtu | |
2740 | * sized frames. | |
2741 | */ | |
2742 | if (unlikely(rtl8169_fragmented_frame(status))) { | |
2743 | tp->stats.rx_dropped++; | |
2744 | tp->stats.rx_length_errors++; | |
2745 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
4dcb7d33 | 2746 | continue; |
126fa4b9 FR |
2747 | } |
2748 | ||
1da177e4 | 2749 | rtl8169_rx_csum(skb, desc); |
bcf0bf90 | 2750 | |
07d3f51f | 2751 | if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) { |
b449655f SH |
2752 | pci_dma_sync_single_for_device(pdev, addr, |
2753 | pkt_size, PCI_DMA_FROMDEVICE); | |
2754 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
2755 | } else { | |
2756 | pci_unmap_single(pdev, addr, pkt_size, | |
2757 | PCI_DMA_FROMDEVICE); | |
1da177e4 LT |
2758 | tp->Rx_skbuff[entry] = NULL; |
2759 | } | |
2760 | ||
1da177e4 LT |
2761 | skb_put(skb, pkt_size); |
2762 | skb->protocol = eth_type_trans(skb, dev); | |
2763 | ||
2764 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) | |
2765 | rtl8169_rx_skb(skb); | |
2766 | ||
2767 | dev->last_rx = jiffies; | |
2768 | tp->stats.rx_bytes += pkt_size; | |
2769 | tp->stats.rx_packets++; | |
2770 | } | |
6dccd16b FR |
2771 | |
2772 | /* Work around for AMD plateform. */ | |
2773 | if ((desc->opts2 & 0xfffe000) && | |
2774 | (tp->mac_version == RTL_GIGA_MAC_VER_05)) { | |
2775 | desc->opts2 = 0; | |
2776 | cur_rx++; | |
2777 | } | |
1da177e4 LT |
2778 | } |
2779 | ||
2780 | count = cur_rx - tp->cur_rx; | |
2781 | tp->cur_rx = cur_rx; | |
2782 | ||
2783 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
b57b7e5a | 2784 | if (!delta && count && netif_msg_intr(tp)) |
1da177e4 LT |
2785 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
2786 | tp->dirty_rx += delta; | |
2787 | ||
2788 | /* | |
2789 | * FIXME: until there is periodic timer to try and refill the ring, | |
2790 | * a temporary shortage may definitely kill the Rx process. | |
2791 | * - disable the asic to try and avoid an overflow and kick it again | |
2792 | * after refill ? | |
2793 | * - how do others driver handle this condition (Uh oh...). | |
2794 | */ | |
b57b7e5a | 2795 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
1da177e4 LT |
2796 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
2797 | ||
2798 | return count; | |
2799 | } | |
2800 | ||
07d3f51f | 2801 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance) |
1da177e4 | 2802 | { |
07d3f51f | 2803 | struct net_device *dev = dev_instance; |
1da177e4 LT |
2804 | struct rtl8169_private *tp = netdev_priv(dev); |
2805 | int boguscnt = max_interrupt_work; | |
2806 | void __iomem *ioaddr = tp->mmio_addr; | |
2807 | int status; | |
2808 | int handled = 0; | |
2809 | ||
2810 | do { | |
2811 | status = RTL_R16(IntrStatus); | |
2812 | ||
2813 | /* hotplug/major error/no more work/shared irq */ | |
2814 | if ((status == 0xFFFF) || !status) | |
2815 | break; | |
2816 | ||
2817 | handled = 1; | |
2818 | ||
2819 | if (unlikely(!netif_running(dev))) { | |
2820 | rtl8169_asic_down(ioaddr); | |
2821 | goto out; | |
2822 | } | |
2823 | ||
2824 | status &= tp->intr_mask; | |
2825 | RTL_W16(IntrStatus, | |
2826 | (status & RxFIFOOver) ? (status | RxOverflow) : status); | |
2827 | ||
0e485150 FR |
2828 | if (!(status & tp->intr_event)) |
2829 | break; | |
2830 | ||
2831 | /* Work around for rx fifo overflow */ | |
2832 | if (unlikely(status & RxFIFOOver) && | |
2833 | (tp->mac_version == RTL_GIGA_MAC_VER_11)) { | |
2834 | netif_stop_queue(dev); | |
2835 | rtl8169_tx_timeout(dev); | |
1da177e4 | 2836 | break; |
0e485150 | 2837 | } |
1da177e4 LT |
2838 | |
2839 | if (unlikely(status & SYSErr)) { | |
2840 | rtl8169_pcierr_interrupt(dev); | |
2841 | break; | |
2842 | } | |
2843 | ||
2844 | if (status & LinkChg) | |
2845 | rtl8169_check_link_status(dev, tp, ioaddr); | |
2846 | ||
2847 | #ifdef CONFIG_R8169_NAPI | |
313b0305 FR |
2848 | if (status & tp->napi_event) { |
2849 | RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event); | |
2850 | tp->intr_mask = ~tp->napi_event; | |
2851 | ||
bea3348e SH |
2852 | if (likely(netif_rx_schedule_prep(dev, &tp->napi))) |
2853 | __netif_rx_schedule(dev, &tp->napi); | |
313b0305 FR |
2854 | else if (netif_msg_intr(tp)) { |
2855 | printk(KERN_INFO "%s: interrupt %04x in poll\n", | |
2856 | dev->name, status); | |
2857 | } | |
1da177e4 LT |
2858 | } |
2859 | break; | |
2860 | #else | |
2861 | /* Rx interrupt */ | |
07d3f51f | 2862 | if (status & (RxOK | RxOverflow | RxFIFOOver)) |
bea3348e | 2863 | rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0); |
07d3f51f | 2864 | |
1da177e4 LT |
2865 | /* Tx interrupt */ |
2866 | if (status & (TxOK | TxErr)) | |
2867 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2868 | #endif | |
2869 | ||
2870 | boguscnt--; | |
2871 | } while (boguscnt > 0); | |
2872 | ||
2873 | if (boguscnt <= 0) { | |
7c8b2eb4 | 2874 | if (netif_msg_intr(tp) && net_ratelimit() ) { |
b57b7e5a SH |
2875 | printk(KERN_WARNING |
2876 | "%s: Too much work at interrupt!\n", dev->name); | |
2877 | } | |
1da177e4 LT |
2878 | /* Clear all interrupt sources. */ |
2879 | RTL_W16(IntrStatus, 0xffff); | |
2880 | } | |
2881 | out: | |
2882 | return IRQ_RETVAL(handled); | |
2883 | } | |
2884 | ||
2885 | #ifdef CONFIG_R8169_NAPI | |
bea3348e | 2886 | static int rtl8169_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2887 | { |
bea3348e SH |
2888 | struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi); |
2889 | struct net_device *dev = tp->dev; | |
1da177e4 | 2890 | void __iomem *ioaddr = tp->mmio_addr; |
bea3348e | 2891 | int work_done; |
1da177e4 | 2892 | |
bea3348e | 2893 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget); |
1da177e4 LT |
2894 | rtl8169_tx_interrupt(dev, tp, ioaddr); |
2895 | ||
bea3348e SH |
2896 | if (work_done < budget) { |
2897 | netif_rx_complete(dev, napi); | |
1da177e4 LT |
2898 | tp->intr_mask = 0xffff; |
2899 | /* | |
2900 | * 20040426: the barrier is not strictly required but the | |
2901 | * behavior of the irq handler could be less predictable | |
2902 | * without it. Btw, the lack of flush for the posted pci | |
2903 | * write is safe - FR | |
2904 | */ | |
2905 | smp_wmb(); | |
0e485150 | 2906 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
2907 | } |
2908 | ||
bea3348e | 2909 | return work_done; |
1da177e4 LT |
2910 | } |
2911 | #endif | |
2912 | ||
2913 | static void rtl8169_down(struct net_device *dev) | |
2914 | { | |
2915 | struct rtl8169_private *tp = netdev_priv(dev); | |
2916 | void __iomem *ioaddr = tp->mmio_addr; | |
2917 | unsigned int poll_locked = 0; | |
733b736c | 2918 | unsigned int intrmask; |
1da177e4 LT |
2919 | |
2920 | rtl8169_delete_timer(dev); | |
2921 | ||
2922 | netif_stop_queue(dev); | |
2923 | ||
1da177e4 LT |
2924 | core_down: |
2925 | spin_lock_irq(&tp->lock); | |
2926 | ||
2927 | rtl8169_asic_down(ioaddr); | |
2928 | ||
2929 | /* Update the error counts. */ | |
2930 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2931 | RTL_W32(RxMissed, 0); | |
2932 | ||
2933 | spin_unlock_irq(&tp->lock); | |
2934 | ||
2935 | synchronize_irq(dev->irq); | |
2936 | ||
2937 | if (!poll_locked) { | |
bea3348e | 2938 | napi_disable(&tp->napi); |
1da177e4 LT |
2939 | poll_locked++; |
2940 | } | |
2941 | ||
2942 | /* Give a racing hard_start_xmit a few cycles to complete. */ | |
fbd568a3 | 2943 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
1da177e4 LT |
2944 | |
2945 | /* | |
2946 | * And now for the 50k$ question: are IRQ disabled or not ? | |
2947 | * | |
2948 | * Two paths lead here: | |
2949 | * 1) dev->close | |
2950 | * -> netif_running() is available to sync the current code and the | |
2951 | * IRQ handler. See rtl8169_interrupt for details. | |
2952 | * 2) dev->change_mtu | |
2953 | * -> rtl8169_poll can not be issued again and re-enable the | |
2954 | * interruptions. Let's simply issue the IRQ down sequence again. | |
733b736c AP |
2955 | * |
2956 | * No loop if hotpluged or major error (0xffff). | |
1da177e4 | 2957 | */ |
733b736c AP |
2958 | intrmask = RTL_R16(IntrMask); |
2959 | if (intrmask && (intrmask != 0xffff)) | |
1da177e4 LT |
2960 | goto core_down; |
2961 | ||
2962 | rtl8169_tx_clear(tp); | |
2963 | ||
2964 | rtl8169_rx_clear(tp); | |
2965 | } | |
2966 | ||
2967 | static int rtl8169_close(struct net_device *dev) | |
2968 | { | |
2969 | struct rtl8169_private *tp = netdev_priv(dev); | |
2970 | struct pci_dev *pdev = tp->pci_dev; | |
2971 | ||
2972 | rtl8169_down(dev); | |
2973 | ||
2974 | free_irq(dev->irq, dev); | |
2975 | ||
1da177e4 LT |
2976 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
2977 | tp->RxPhyAddr); | |
2978 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
2979 | tp->TxPhyAddr); | |
2980 | tp->TxDescArray = NULL; | |
2981 | tp->RxDescArray = NULL; | |
2982 | ||
2983 | return 0; | |
2984 | } | |
2985 | ||
07ce4064 | 2986 | static void rtl_set_rx_mode(struct net_device *dev) |
1da177e4 LT |
2987 | { |
2988 | struct rtl8169_private *tp = netdev_priv(dev); | |
2989 | void __iomem *ioaddr = tp->mmio_addr; | |
2990 | unsigned long flags; | |
2991 | u32 mc_filter[2]; /* Multicast hash filter */ | |
07d3f51f | 2992 | int rx_mode; |
1da177e4 LT |
2993 | u32 tmp = 0; |
2994 | ||
2995 | if (dev->flags & IFF_PROMISC) { | |
2996 | /* Unconditionally log net taps. */ | |
b57b7e5a SH |
2997 | if (netif_msg_link(tp)) { |
2998 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
2999 | dev->name); | |
3000 | } | |
1da177e4 LT |
3001 | rx_mode = |
3002 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
3003 | AcceptAllPhys; | |
3004 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
3005 | } else if ((dev->mc_count > multicast_filter_limit) | |
3006 | || (dev->flags & IFF_ALLMULTI)) { | |
3007 | /* Too many to filter perfectly -- accept all multicasts. */ | |
3008 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
3009 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
3010 | } else { | |
3011 | struct dev_mc_list *mclist; | |
07d3f51f FR |
3012 | unsigned int i; |
3013 | ||
1da177e4 LT |
3014 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
3015 | mc_filter[1] = mc_filter[0] = 0; | |
3016 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
3017 | i++, mclist = mclist->next) { | |
3018 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
3019 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
3020 | rx_mode |= AcceptMulticast; | |
3021 | } | |
3022 | } | |
3023 | ||
3024 | spin_lock_irqsave(&tp->lock, flags); | |
3025 | ||
3026 | tmp = rtl8169_rx_config | rx_mode | | |
3027 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
3028 | ||
bcf0bf90 FR |
3029 | if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || |
3030 | (tp->mac_version == RTL_GIGA_MAC_VER_12) || | |
3031 | (tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
3032 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
3033 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
3034 | mc_filter[0] = 0xffffffff; | |
3035 | mc_filter[1] = 0xffffffff; | |
3036 | } | |
3037 | ||
1da177e4 LT |
3038 | RTL_W32(MAR0 + 0, mc_filter[0]); |
3039 | RTL_W32(MAR0 + 4, mc_filter[1]); | |
3040 | ||
57a9f236 FR |
3041 | RTL_W32(RxConfig, tmp); |
3042 | ||
1da177e4 LT |
3043 | spin_unlock_irqrestore(&tp->lock, flags); |
3044 | } | |
3045 | ||
3046 | /** | |
3047 | * rtl8169_get_stats - Get rtl8169 read/write statistics | |
3048 | * @dev: The Ethernet Device to get statistics for | |
3049 | * | |
3050 | * Get TX/RX statistics for rtl8169 | |
3051 | */ | |
3052 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) | |
3053 | { | |
3054 | struct rtl8169_private *tp = netdev_priv(dev); | |
3055 | void __iomem *ioaddr = tp->mmio_addr; | |
3056 | unsigned long flags; | |
3057 | ||
3058 | if (netif_running(dev)) { | |
3059 | spin_lock_irqsave(&tp->lock, flags); | |
3060 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
3061 | RTL_W32(RxMissed, 0); | |
3062 | spin_unlock_irqrestore(&tp->lock, flags); | |
3063 | } | |
5b0384f4 | 3064 | |
1da177e4 LT |
3065 | return &tp->stats; |
3066 | } | |
3067 | ||
5d06a99f FR |
3068 | #ifdef CONFIG_PM |
3069 | ||
3070 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) | |
3071 | { | |
3072 | struct net_device *dev = pci_get_drvdata(pdev); | |
3073 | struct rtl8169_private *tp = netdev_priv(dev); | |
3074 | void __iomem *ioaddr = tp->mmio_addr; | |
3075 | ||
3076 | if (!netif_running(dev)) | |
1371fa6d | 3077 | goto out_pci_suspend; |
5d06a99f FR |
3078 | |
3079 | netif_device_detach(dev); | |
3080 | netif_stop_queue(dev); | |
3081 | ||
3082 | spin_lock_irq(&tp->lock); | |
3083 | ||
3084 | rtl8169_asic_down(ioaddr); | |
3085 | ||
3086 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
3087 | RTL_W32(RxMissed, 0); | |
3088 | ||
3089 | spin_unlock_irq(&tp->lock); | |
3090 | ||
1371fa6d | 3091 | out_pci_suspend: |
5d06a99f | 3092 | pci_save_state(pdev); |
f23e7fda FR |
3093 | pci_enable_wake(pdev, pci_choose_state(pdev, state), |
3094 | (tp->features & RTL_FEATURE_WOL) ? 1 : 0); | |
5d06a99f | 3095 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
1371fa6d | 3096 | |
5d06a99f FR |
3097 | return 0; |
3098 | } | |
3099 | ||
3100 | static int rtl8169_resume(struct pci_dev *pdev) | |
3101 | { | |
3102 | struct net_device *dev = pci_get_drvdata(pdev); | |
3103 | ||
1371fa6d FR |
3104 | pci_set_power_state(pdev, PCI_D0); |
3105 | pci_restore_state(pdev); | |
3106 | pci_enable_wake(pdev, PCI_D0, 0); | |
3107 | ||
5d06a99f FR |
3108 | if (!netif_running(dev)) |
3109 | goto out; | |
3110 | ||
3111 | netif_device_attach(dev); | |
3112 | ||
5d06a99f FR |
3113 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
3114 | out: | |
3115 | return 0; | |
3116 | } | |
3117 | ||
3118 | #endif /* CONFIG_PM */ | |
3119 | ||
1da177e4 LT |
3120 | static struct pci_driver rtl8169_pci_driver = { |
3121 | .name = MODULENAME, | |
3122 | .id_table = rtl8169_pci_tbl, | |
3123 | .probe = rtl8169_init_one, | |
3124 | .remove = __devexit_p(rtl8169_remove_one), | |
3125 | #ifdef CONFIG_PM | |
3126 | .suspend = rtl8169_suspend, | |
3127 | .resume = rtl8169_resume, | |
3128 | #endif | |
3129 | }; | |
3130 | ||
07d3f51f | 3131 | static int __init rtl8169_init_module(void) |
1da177e4 | 3132 | { |
29917620 | 3133 | return pci_register_driver(&rtl8169_pci_driver); |
1da177e4 LT |
3134 | } |
3135 | ||
07d3f51f | 3136 | static void __exit rtl8169_cleanup_module(void) |
1da177e4 LT |
3137 | { |
3138 | pci_unregister_driver(&rtl8169_pci_driver); | |
3139 | } | |
3140 | ||
3141 | module_init(rtl8169_init_module); | |
3142 | module_exit(rtl8169_cleanup_module); |