Commit | Line | Data |
---|---|---|
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 | ||
865c652d | 31 | #define RTL8169_VERSION "2.3LK-NAPI" |
1da177e4 LT |
32 | #define MODULENAME "r8169" |
33 | #define PFX MODULENAME ": " | |
34 | ||
35 | #ifdef RTL8169_DEBUG | |
36 | #define assert(expr) \ | |
5b0384f4 FR |
37 | if (!(expr)) { \ |
38 | printk( "Assertion failed! %s,%s,%s,line=%d\n", \ | |
39 | #expr,__FILE__,__FUNCTION__,__LINE__); \ | |
40 | } | |
06fa7358 JP |
41 | #define dprintk(fmt, args...) \ |
42 | do { printk(KERN_DEBUG PFX fmt, ## args); } while (0) | |
1da177e4 LT |
43 | #else |
44 | #define assert(expr) do {} while (0) | |
45 | #define dprintk(fmt, args...) do {} while (0) | |
46 | #endif /* RTL8169_DEBUG */ | |
47 | ||
b57b7e5a | 48 | #define R8169_MSG_DEFAULT \ |
f0e837d9 | 49 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) |
b57b7e5a | 50 | |
1da177e4 LT |
51 | #define TX_BUFFS_AVAIL(tp) \ |
52 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) | |
53 | ||
1da177e4 | 54 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
f71e1309 | 55 | static const int max_interrupt_work = 20; |
1da177e4 LT |
56 | |
57 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
58 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
f71e1309 | 59 | static const int multicast_filter_limit = 32; |
1da177e4 LT |
60 | |
61 | /* MAC address length */ | |
62 | #define MAC_ADDR_LEN 6 | |
63 | ||
9c14ceaf | 64 | #define MAX_READ_REQUEST_SHIFT 12 |
1da177e4 LT |
65 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ |
66 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
67 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
07d3f51f | 68 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ |
1da177e4 LT |
69 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ |
70 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ | |
71 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ | |
72 | ||
73 | #define R8169_REGS_SIZE 256 | |
74 | #define R8169_NAPI_WEIGHT 64 | |
75 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ | |
76 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ | |
77 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ | |
78 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | |
79 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
80 | ||
81 | #define RTL8169_TX_TIMEOUT (6*HZ) | |
82 | #define RTL8169_PHY_TIMEOUT (10*HZ) | |
83 | ||
84 | /* write/read MMIO register */ | |
85 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) | |
86 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) | |
87 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) | |
88 | #define RTL_R8(reg) readb (ioaddr + (reg)) | |
89 | #define RTL_R16(reg) readw (ioaddr + (reg)) | |
90 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) | |
91 | ||
92 | enum mac_version { | |
ba6eb6ee FR |
93 | RTL_GIGA_MAC_VER_01 = 0x01, // 8169 |
94 | RTL_GIGA_MAC_VER_02 = 0x02, // 8169S | |
95 | RTL_GIGA_MAC_VER_03 = 0x03, // 8110S | |
96 | RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB | |
97 | RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd | |
6dccd16b | 98 | RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe |
2857ffb7 FR |
99 | RTL_GIGA_MAC_VER_07 = 0x07, // 8102e |
100 | RTL_GIGA_MAC_VER_08 = 0x08, // 8102e | |
101 | RTL_GIGA_MAC_VER_09 = 0x09, // 8102e | |
102 | RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e | |
2dd99530 | 103 | RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb |
e3cf0cc0 FR |
104 | RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be |
105 | RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb | |
106 | RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ? | |
107 | RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ? | |
108 | RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec | |
109 | RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf | |
110 | RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP | |
111 | RTL_GIGA_MAC_VER_19 = 0x13, // 8168C | |
112 | RTL_GIGA_MAC_VER_20 = 0x14 // 8168C | |
1da177e4 LT |
113 | }; |
114 | ||
1da177e4 LT |
115 | #define _R(NAME,MAC,MASK) \ |
116 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } | |
117 | ||
3c6bee1d | 118 | static const struct { |
1da177e4 LT |
119 | const char *name; |
120 | u8 mac_version; | |
121 | u32 RxConfigMask; /* Clears the bits supported by this chip */ | |
122 | } rtl_chip_info[] = { | |
ba6eb6ee FR |
123 | _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169 |
124 | _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S | |
125 | _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S | |
126 | _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB | |
127 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd | |
6dccd16b | 128 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe |
2857ffb7 FR |
129 | _R("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E |
130 | _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E | |
131 | _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E | |
132 | _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E | |
bcf0bf90 FR |
133 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E |
134 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E | |
135 | _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 | |
136 | _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 | |
e3cf0cc0 FR |
137 | _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139 |
138 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E | |
139 | _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E | |
140 | _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E | |
141 | _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E | |
142 | _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880) // PCI-E | |
1da177e4 LT |
143 | }; |
144 | #undef _R | |
145 | ||
bcf0bf90 FR |
146 | enum cfg_version { |
147 | RTL_CFG_0 = 0x00, | |
148 | RTL_CFG_1, | |
149 | RTL_CFG_2 | |
150 | }; | |
151 | ||
07ce4064 FR |
152 | static void rtl_hw_start_8169(struct net_device *); |
153 | static void rtl_hw_start_8168(struct net_device *); | |
154 | static void rtl_hw_start_8101(struct net_device *); | |
155 | ||
1da177e4 | 156 | static struct pci_device_id rtl8169_pci_tbl[] = { |
bcf0bf90 | 157 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, |
d2eed8cf | 158 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, |
d81bf551 | 159 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, |
07ce4064 | 160 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, |
bcf0bf90 FR |
161 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, |
162 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, | |
bc1660b5 | 163 | { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 }, |
bcf0bf90 FR |
164 | { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, |
165 | { PCI_VENDOR_ID_LINKSYS, 0x1032, | |
166 | PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, | |
11d2e282 CM |
167 | { 0x0001, 0x8168, |
168 | PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 }, | |
1da177e4 LT |
169 | {0,}, |
170 | }; | |
171 | ||
172 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); | |
173 | ||
174 | static int rx_copybreak = 200; | |
175 | static int use_dac; | |
b57b7e5a SH |
176 | static struct { |
177 | u32 msg_enable; | |
178 | } debug = { -1 }; | |
1da177e4 | 179 | |
07d3f51f FR |
180 | enum rtl_registers { |
181 | MAC0 = 0, /* Ethernet hardware address. */ | |
773d2021 | 182 | MAC4 = 4, |
07d3f51f FR |
183 | MAR0 = 8, /* Multicast filter. */ |
184 | CounterAddrLow = 0x10, | |
185 | CounterAddrHigh = 0x14, | |
186 | TxDescStartAddrLow = 0x20, | |
187 | TxDescStartAddrHigh = 0x24, | |
188 | TxHDescStartAddrLow = 0x28, | |
189 | TxHDescStartAddrHigh = 0x2c, | |
190 | FLASH = 0x30, | |
191 | ERSR = 0x36, | |
192 | ChipCmd = 0x37, | |
193 | TxPoll = 0x38, | |
194 | IntrMask = 0x3c, | |
195 | IntrStatus = 0x3e, | |
196 | TxConfig = 0x40, | |
197 | RxConfig = 0x44, | |
198 | RxMissed = 0x4c, | |
199 | Cfg9346 = 0x50, | |
200 | Config0 = 0x51, | |
201 | Config1 = 0x52, | |
202 | Config2 = 0x53, | |
203 | Config3 = 0x54, | |
204 | Config4 = 0x55, | |
205 | Config5 = 0x56, | |
206 | MultiIntr = 0x5c, | |
207 | PHYAR = 0x60, | |
07d3f51f FR |
208 | PHYstatus = 0x6c, |
209 | RxMaxSize = 0xda, | |
210 | CPlusCmd = 0xe0, | |
211 | IntrMitigate = 0xe2, | |
212 | RxDescAddrLow = 0xe4, | |
213 | RxDescAddrHigh = 0xe8, | |
214 | EarlyTxThres = 0xec, | |
215 | FuncEvent = 0xf0, | |
216 | FuncEventMask = 0xf4, | |
217 | FuncPresetState = 0xf8, | |
218 | FuncForceEvent = 0xfc, | |
1da177e4 LT |
219 | }; |
220 | ||
f162a5d1 FR |
221 | enum rtl8110_registers { |
222 | TBICSR = 0x64, | |
223 | TBI_ANAR = 0x68, | |
224 | TBI_LPAR = 0x6a, | |
225 | }; | |
226 | ||
227 | enum rtl8168_8101_registers { | |
228 | CSIDR = 0x64, | |
229 | CSIAR = 0x68, | |
230 | #define CSIAR_FLAG 0x80000000 | |
231 | #define CSIAR_WRITE_CMD 0x80000000 | |
232 | #define CSIAR_BYTE_ENABLE 0x0f | |
233 | #define CSIAR_BYTE_ENABLE_SHIFT 12 | |
234 | #define CSIAR_ADDR_MASK 0x0fff | |
235 | ||
236 | EPHYAR = 0x80, | |
237 | #define EPHYAR_FLAG 0x80000000 | |
238 | #define EPHYAR_WRITE_CMD 0x80000000 | |
239 | #define EPHYAR_REG_MASK 0x1f | |
240 | #define EPHYAR_REG_SHIFT 16 | |
241 | #define EPHYAR_DATA_MASK 0xffff | |
242 | DBG_REG = 0xd1, | |
243 | #define FIX_NAK_1 (1 << 4) | |
244 | #define FIX_NAK_2 (1 << 3) | |
245 | }; | |
246 | ||
07d3f51f | 247 | enum rtl_register_content { |
1da177e4 | 248 | /* InterruptStatusBits */ |
07d3f51f FR |
249 | SYSErr = 0x8000, |
250 | PCSTimeout = 0x4000, | |
251 | SWInt = 0x0100, | |
252 | TxDescUnavail = 0x0080, | |
253 | RxFIFOOver = 0x0040, | |
254 | LinkChg = 0x0020, | |
255 | RxOverflow = 0x0010, | |
256 | TxErr = 0x0008, | |
257 | TxOK = 0x0004, | |
258 | RxErr = 0x0002, | |
259 | RxOK = 0x0001, | |
1da177e4 LT |
260 | |
261 | /* RxStatusDesc */ | |
9dccf611 FR |
262 | RxFOVF = (1 << 23), |
263 | RxRWT = (1 << 22), | |
264 | RxRES = (1 << 21), | |
265 | RxRUNT = (1 << 20), | |
266 | RxCRC = (1 << 19), | |
1da177e4 LT |
267 | |
268 | /* ChipCmdBits */ | |
07d3f51f FR |
269 | CmdReset = 0x10, |
270 | CmdRxEnb = 0x08, | |
271 | CmdTxEnb = 0x04, | |
272 | RxBufEmpty = 0x01, | |
1da177e4 | 273 | |
275391a4 FR |
274 | /* TXPoll register p.5 */ |
275 | HPQ = 0x80, /* Poll cmd on the high prio queue */ | |
276 | NPQ = 0x40, /* Poll cmd on the low prio queue */ | |
277 | FSWInt = 0x01, /* Forced software interrupt */ | |
278 | ||
1da177e4 | 279 | /* Cfg9346Bits */ |
07d3f51f FR |
280 | Cfg9346_Lock = 0x00, |
281 | Cfg9346_Unlock = 0xc0, | |
1da177e4 LT |
282 | |
283 | /* rx_mode_bits */ | |
07d3f51f FR |
284 | AcceptErr = 0x20, |
285 | AcceptRunt = 0x10, | |
286 | AcceptBroadcast = 0x08, | |
287 | AcceptMulticast = 0x04, | |
288 | AcceptMyPhys = 0x02, | |
289 | AcceptAllPhys = 0x01, | |
1da177e4 LT |
290 | |
291 | /* RxConfigBits */ | |
07d3f51f FR |
292 | RxCfgFIFOShift = 13, |
293 | RxCfgDMAShift = 8, | |
1da177e4 LT |
294 | |
295 | /* TxConfigBits */ | |
296 | TxInterFrameGapShift = 24, | |
297 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
298 | ||
5d06a99f | 299 | /* Config1 register p.24 */ |
f162a5d1 FR |
300 | LEDS1 = (1 << 7), |
301 | LEDS0 = (1 << 6), | |
fbac58fc | 302 | MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */ |
f162a5d1 FR |
303 | Speed_down = (1 << 4), |
304 | MEMMAP = (1 << 3), | |
305 | IOMAP = (1 << 2), | |
306 | VPD = (1 << 1), | |
5d06a99f FR |
307 | PMEnable = (1 << 0), /* Power Management Enable */ |
308 | ||
6dccd16b FR |
309 | /* Config2 register p. 25 */ |
310 | PCI_Clock_66MHz = 0x01, | |
311 | PCI_Clock_33MHz = 0x00, | |
312 | ||
61a4dcc2 FR |
313 | /* Config3 register p.25 */ |
314 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
315 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
f162a5d1 | 316 | Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */ |
61a4dcc2 | 317 | |
5d06a99f | 318 | /* Config5 register p.27 */ |
61a4dcc2 FR |
319 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ |
320 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
321 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
322 | LanWake = (1 << 1), /* LanWake enable/disable */ | |
5d06a99f FR |
323 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ |
324 | ||
1da177e4 LT |
325 | /* TBICSR p.28 */ |
326 | TBIReset = 0x80000000, | |
327 | TBILoopback = 0x40000000, | |
328 | TBINwEnable = 0x20000000, | |
329 | TBINwRestart = 0x10000000, | |
330 | TBILinkOk = 0x02000000, | |
331 | TBINwComplete = 0x01000000, | |
332 | ||
333 | /* CPlusCmd p.31 */ | |
f162a5d1 FR |
334 | EnableBist = (1 << 15), // 8168 8101 |
335 | Mac_dbgo_oe = (1 << 14), // 8168 8101 | |
336 | Normal_mode = (1 << 13), // unused | |
337 | Force_half_dup = (1 << 12), // 8168 8101 | |
338 | Force_rxflow_en = (1 << 11), // 8168 8101 | |
339 | Force_txflow_en = (1 << 10), // 8168 8101 | |
340 | Cxpl_dbg_sel = (1 << 9), // 8168 8101 | |
341 | ASF = (1 << 8), // 8168 8101 | |
342 | PktCntrDisable = (1 << 7), // 8168 8101 | |
343 | Mac_dbgo_sel = 0x001c, // 8168 | |
1da177e4 LT |
344 | RxVlan = (1 << 6), |
345 | RxChkSum = (1 << 5), | |
346 | PCIDAC = (1 << 4), | |
347 | PCIMulRW = (1 << 3), | |
0e485150 FR |
348 | INTT_0 = 0x0000, // 8168 |
349 | INTT_1 = 0x0001, // 8168 | |
350 | INTT_2 = 0x0002, // 8168 | |
351 | INTT_3 = 0x0003, // 8168 | |
1da177e4 LT |
352 | |
353 | /* rtl8169_PHYstatus */ | |
07d3f51f FR |
354 | TBI_Enable = 0x80, |
355 | TxFlowCtrl = 0x40, | |
356 | RxFlowCtrl = 0x20, | |
357 | _1000bpsF = 0x10, | |
358 | _100bps = 0x08, | |
359 | _10bps = 0x04, | |
360 | LinkStatus = 0x02, | |
361 | FullDup = 0x01, | |
1da177e4 | 362 | |
1da177e4 | 363 | /* _TBICSRBit */ |
07d3f51f | 364 | TBILinkOK = 0x02000000, |
d4a3a0fc SH |
365 | |
366 | /* DumpCounterCommand */ | |
07d3f51f | 367 | CounterDump = 0x8, |
1da177e4 LT |
368 | }; |
369 | ||
07d3f51f | 370 | enum desc_status_bit { |
1da177e4 LT |
371 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ |
372 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
373 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
374 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
375 | ||
376 | /* Tx private */ | |
377 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ | |
378 | MSSShift = 16, /* MSS value position */ | |
379 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ | |
380 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
381 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
382 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
383 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
384 | ||
385 | /* Rx private */ | |
386 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ | |
387 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ | |
388 | ||
389 | #define RxProtoUDP (PID1) | |
390 | #define RxProtoTCP (PID0) | |
391 | #define RxProtoIP (PID1 | PID0) | |
392 | #define RxProtoMask RxProtoIP | |
393 | ||
394 | IPFail = (1 << 16), /* IP checksum failed */ | |
395 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ | |
396 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ | |
397 | RxVlanTag = (1 << 16), /* VLAN tag available */ | |
398 | }; | |
399 | ||
400 | #define RsvdMask 0x3fffc000 | |
401 | ||
402 | struct TxDesc { | |
6cccd6e7 REB |
403 | __le32 opts1; |
404 | __le32 opts2; | |
405 | __le64 addr; | |
1da177e4 LT |
406 | }; |
407 | ||
408 | struct RxDesc { | |
6cccd6e7 REB |
409 | __le32 opts1; |
410 | __le32 opts2; | |
411 | __le64 addr; | |
1da177e4 LT |
412 | }; |
413 | ||
414 | struct ring_info { | |
415 | struct sk_buff *skb; | |
416 | u32 len; | |
417 | u8 __pad[sizeof(void *) - sizeof(u32)]; | |
418 | }; | |
419 | ||
f23e7fda | 420 | enum features { |
ccdffb9a FR |
421 | RTL_FEATURE_WOL = (1 << 0), |
422 | RTL_FEATURE_MSI = (1 << 1), | |
423 | RTL_FEATURE_GMII = (1 << 2), | |
f23e7fda FR |
424 | }; |
425 | ||
1da177e4 LT |
426 | struct rtl8169_private { |
427 | void __iomem *mmio_addr; /* memory map physical address */ | |
428 | struct pci_dev *pci_dev; /* Index of PCI device */ | |
c4028958 | 429 | struct net_device *dev; |
bea3348e | 430 | struct napi_struct napi; |
1da177e4 | 431 | spinlock_t lock; /* spin lock flag */ |
b57b7e5a | 432 | u32 msg_enable; |
1da177e4 LT |
433 | int chipset; |
434 | int mac_version; | |
1da177e4 LT |
435 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ |
436 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ | |
437 | u32 dirty_rx; | |
438 | u32 dirty_tx; | |
439 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ | |
440 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ | |
441 | dma_addr_t TxPhyAddr; | |
442 | dma_addr_t RxPhyAddr; | |
443 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ | |
444 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ | |
bcf0bf90 | 445 | unsigned align; |
1da177e4 LT |
446 | unsigned rx_buf_sz; |
447 | struct timer_list timer; | |
448 | u16 cp_cmd; | |
0e485150 FR |
449 | u16 intr_event; |
450 | u16 napi_event; | |
1da177e4 LT |
451 | u16 intr_mask; |
452 | int phy_auto_nego_reg; | |
453 | int phy_1000_ctrl_reg; | |
454 | #ifdef CONFIG_R8169_VLAN | |
455 | struct vlan_group *vlgrp; | |
456 | #endif | |
457 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); | |
ccdffb9a | 458 | int (*get_settings)(struct net_device *, struct ethtool_cmd *); |
1da177e4 | 459 | void (*phy_reset_enable)(void __iomem *); |
07ce4064 | 460 | void (*hw_start)(struct net_device *); |
1da177e4 LT |
461 | unsigned int (*phy_reset_pending)(void __iomem *); |
462 | unsigned int (*link_ok)(void __iomem *); | |
9c14ceaf | 463 | int pcie_cap; |
c4028958 | 464 | struct delayed_work task; |
f23e7fda | 465 | unsigned features; |
ccdffb9a FR |
466 | |
467 | struct mii_if_info mii; | |
1da177e4 LT |
468 | }; |
469 | ||
979b6c13 | 470 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
1da177e4 | 471 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
1da177e4 | 472 | module_param(rx_copybreak, int, 0); |
1b7efd58 | 473 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
1da177e4 LT |
474 | module_param(use_dac, int, 0); |
475 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); | |
b57b7e5a SH |
476 | module_param_named(debug, debug.msg_enable, int, 0); |
477 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
1da177e4 LT |
478 | MODULE_LICENSE("GPL"); |
479 | MODULE_VERSION(RTL8169_VERSION); | |
480 | ||
481 | static int rtl8169_open(struct net_device *dev); | |
482 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 483 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance); |
1da177e4 | 484 | static int rtl8169_init_ring(struct net_device *dev); |
07ce4064 | 485 | static void rtl_hw_start(struct net_device *dev); |
1da177e4 | 486 | static int rtl8169_close(struct net_device *dev); |
07ce4064 | 487 | static void rtl_set_rx_mode(struct net_device *dev); |
1da177e4 | 488 | static void rtl8169_tx_timeout(struct net_device *dev); |
4dcb7d33 | 489 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); |
1da177e4 | 490 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, |
bea3348e | 491 | void __iomem *, u32 budget); |
4dcb7d33 | 492 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
1da177e4 | 493 | static void rtl8169_down(struct net_device *dev); |
99f252b0 | 494 | static void rtl8169_rx_clear(struct rtl8169_private *tp); |
bea3348e | 495 | static int rtl8169_poll(struct napi_struct *napi, int budget); |
1da177e4 | 496 | |
1da177e4 | 497 | static const unsigned int rtl8169_rx_config = |
5b0384f4 | 498 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
1da177e4 | 499 | |
07d3f51f | 500 | static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) |
1da177e4 LT |
501 | { |
502 | int i; | |
503 | ||
a6baf3af | 504 | RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff)); |
1da177e4 | 505 | |
2371408c | 506 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
507 | /* |
508 | * Check if the RTL8169 has completed writing to the specified | |
509 | * MII register. | |
510 | */ | |
5b0384f4 | 511 | if (!(RTL_R32(PHYAR) & 0x80000000)) |
1da177e4 | 512 | break; |
2371408c | 513 | udelay(25); |
1da177e4 LT |
514 | } |
515 | } | |
516 | ||
07d3f51f | 517 | static int mdio_read(void __iomem *ioaddr, int reg_addr) |
1da177e4 LT |
518 | { |
519 | int i, value = -1; | |
520 | ||
a6baf3af | 521 | RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16); |
1da177e4 | 522 | |
2371408c | 523 | for (i = 20; i > 0; i--) { |
07d3f51f FR |
524 | /* |
525 | * Check if the RTL8169 has completed retrieving data from | |
526 | * the specified MII register. | |
527 | */ | |
1da177e4 | 528 | if (RTL_R32(PHYAR) & 0x80000000) { |
a6baf3af | 529 | value = RTL_R32(PHYAR) & 0xffff; |
1da177e4 LT |
530 | break; |
531 | } | |
2371408c | 532 | udelay(25); |
1da177e4 LT |
533 | } |
534 | return value; | |
535 | } | |
536 | ||
dacf8154 FR |
537 | static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value) |
538 | { | |
539 | mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value); | |
540 | } | |
541 | ||
ccdffb9a FR |
542 | static void rtl_mdio_write(struct net_device *dev, int phy_id, int location, |
543 | int val) | |
544 | { | |
545 | struct rtl8169_private *tp = netdev_priv(dev); | |
546 | void __iomem *ioaddr = tp->mmio_addr; | |
547 | ||
548 | mdio_write(ioaddr, location, val); | |
549 | } | |
550 | ||
551 | static int rtl_mdio_read(struct net_device *dev, int phy_id, int location) | |
552 | { | |
553 | struct rtl8169_private *tp = netdev_priv(dev); | |
554 | void __iomem *ioaddr = tp->mmio_addr; | |
555 | ||
556 | return mdio_read(ioaddr, location); | |
557 | } | |
558 | ||
dacf8154 FR |
559 | static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value) |
560 | { | |
561 | unsigned int i; | |
562 | ||
563 | RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) | | |
564 | (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); | |
565 | ||
566 | for (i = 0; i < 100; i++) { | |
567 | if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG)) | |
568 | break; | |
569 | udelay(10); | |
570 | } | |
571 | } | |
572 | ||
573 | static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr) | |
574 | { | |
575 | u16 value = 0xffff; | |
576 | unsigned int i; | |
577 | ||
578 | RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); | |
579 | ||
580 | for (i = 0; i < 100; i++) { | |
581 | if (RTL_R32(EPHYAR) & EPHYAR_FLAG) { | |
582 | value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK; | |
583 | break; | |
584 | } | |
585 | udelay(10); | |
586 | } | |
587 | ||
588 | return value; | |
589 | } | |
590 | ||
591 | static void rtl_csi_write(void __iomem *ioaddr, int addr, int value) | |
592 | { | |
593 | unsigned int i; | |
594 | ||
595 | RTL_W32(CSIDR, value); | |
596 | RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) | | |
597 | CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); | |
598 | ||
599 | for (i = 0; i < 100; i++) { | |
600 | if (!(RTL_R32(CSIAR) & CSIAR_FLAG)) | |
601 | break; | |
602 | udelay(10); | |
603 | } | |
604 | } | |
605 | ||
606 | static u32 rtl_csi_read(void __iomem *ioaddr, int addr) | |
607 | { | |
608 | u32 value = ~0x00; | |
609 | unsigned int i; | |
610 | ||
611 | RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) | | |
612 | CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); | |
613 | ||
614 | for (i = 0; i < 100; i++) { | |
615 | if (RTL_R32(CSIAR) & CSIAR_FLAG) { | |
616 | value = RTL_R32(CSIDR); | |
617 | break; | |
618 | } | |
619 | udelay(10); | |
620 | } | |
621 | ||
622 | return value; | |
623 | } | |
624 | ||
1da177e4 LT |
625 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) |
626 | { | |
627 | RTL_W16(IntrMask, 0x0000); | |
628 | ||
629 | RTL_W16(IntrStatus, 0xffff); | |
630 | } | |
631 | ||
632 | static void rtl8169_asic_down(void __iomem *ioaddr) | |
633 | { | |
634 | RTL_W8(ChipCmd, 0x00); | |
635 | rtl8169_irq_mask_and_ack(ioaddr); | |
636 | RTL_R16(CPlusCmd); | |
637 | } | |
638 | ||
639 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) | |
640 | { | |
641 | return RTL_R32(TBICSR) & TBIReset; | |
642 | } | |
643 | ||
644 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) | |
645 | { | |
64e4bfb4 | 646 | return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; |
1da177e4 LT |
647 | } |
648 | ||
649 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) | |
650 | { | |
651 | return RTL_R32(TBICSR) & TBILinkOk; | |
652 | } | |
653 | ||
654 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) | |
655 | { | |
656 | return RTL_R8(PHYstatus) & LinkStatus; | |
657 | } | |
658 | ||
659 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) | |
660 | { | |
661 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); | |
662 | } | |
663 | ||
664 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) | |
665 | { | |
666 | unsigned int val; | |
667 | ||
9e0db8ef FR |
668 | val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; |
669 | mdio_write(ioaddr, MII_BMCR, val & 0xffff); | |
1da177e4 LT |
670 | } |
671 | ||
672 | static void rtl8169_check_link_status(struct net_device *dev, | |
07d3f51f FR |
673 | struct rtl8169_private *tp, |
674 | void __iomem *ioaddr) | |
1da177e4 LT |
675 | { |
676 | unsigned long flags; | |
677 | ||
678 | spin_lock_irqsave(&tp->lock, flags); | |
679 | if (tp->link_ok(ioaddr)) { | |
680 | netif_carrier_on(dev); | |
b57b7e5a SH |
681 | if (netif_msg_ifup(tp)) |
682 | printk(KERN_INFO PFX "%s: link up\n", dev->name); | |
683 | } else { | |
684 | if (netif_msg_ifdown(tp)) | |
685 | printk(KERN_INFO PFX "%s: link down\n", dev->name); | |
1da177e4 | 686 | netif_carrier_off(dev); |
b57b7e5a | 687 | } |
1da177e4 LT |
688 | spin_unlock_irqrestore(&tp->lock, flags); |
689 | } | |
690 | ||
61a4dcc2 FR |
691 | static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
692 | { | |
693 | struct rtl8169_private *tp = netdev_priv(dev); | |
694 | void __iomem *ioaddr = tp->mmio_addr; | |
695 | u8 options; | |
696 | ||
697 | wol->wolopts = 0; | |
698 | ||
699 | #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) | |
700 | wol->supported = WAKE_ANY; | |
701 | ||
702 | spin_lock_irq(&tp->lock); | |
703 | ||
704 | options = RTL_R8(Config1); | |
705 | if (!(options & PMEnable)) | |
706 | goto out_unlock; | |
707 | ||
708 | options = RTL_R8(Config3); | |
709 | if (options & LinkUp) | |
710 | wol->wolopts |= WAKE_PHY; | |
711 | if (options & MagicPacket) | |
712 | wol->wolopts |= WAKE_MAGIC; | |
713 | ||
714 | options = RTL_R8(Config5); | |
715 | if (options & UWF) | |
716 | wol->wolopts |= WAKE_UCAST; | |
717 | if (options & BWF) | |
5b0384f4 | 718 | wol->wolopts |= WAKE_BCAST; |
61a4dcc2 | 719 | if (options & MWF) |
5b0384f4 | 720 | wol->wolopts |= WAKE_MCAST; |
61a4dcc2 FR |
721 | |
722 | out_unlock: | |
723 | spin_unlock_irq(&tp->lock); | |
724 | } | |
725 | ||
726 | static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
727 | { | |
728 | struct rtl8169_private *tp = netdev_priv(dev); | |
729 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 730 | unsigned int i; |
61a4dcc2 FR |
731 | static struct { |
732 | u32 opt; | |
733 | u16 reg; | |
734 | u8 mask; | |
735 | } cfg[] = { | |
736 | { WAKE_ANY, Config1, PMEnable }, | |
737 | { WAKE_PHY, Config3, LinkUp }, | |
738 | { WAKE_MAGIC, Config3, MagicPacket }, | |
739 | { WAKE_UCAST, Config5, UWF }, | |
740 | { WAKE_BCAST, Config5, BWF }, | |
741 | { WAKE_MCAST, Config5, MWF }, | |
742 | { WAKE_ANY, Config5, LanWake } | |
743 | }; | |
744 | ||
745 | spin_lock_irq(&tp->lock); | |
746 | ||
747 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
748 | ||
749 | for (i = 0; i < ARRAY_SIZE(cfg); i++) { | |
750 | u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask; | |
751 | if (wol->wolopts & cfg[i].opt) | |
752 | options |= cfg[i].mask; | |
753 | RTL_W8(cfg[i].reg, options); | |
754 | } | |
755 | ||
756 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
757 | ||
f23e7fda FR |
758 | if (wol->wolopts) |
759 | tp->features |= RTL_FEATURE_WOL; | |
760 | else | |
761 | tp->features &= ~RTL_FEATURE_WOL; | |
61a4dcc2 FR |
762 | |
763 | spin_unlock_irq(&tp->lock); | |
764 | ||
765 | return 0; | |
766 | } | |
767 | ||
1da177e4 LT |
768 | static void rtl8169_get_drvinfo(struct net_device *dev, |
769 | struct ethtool_drvinfo *info) | |
770 | { | |
771 | struct rtl8169_private *tp = netdev_priv(dev); | |
772 | ||
773 | strcpy(info->driver, MODULENAME); | |
774 | strcpy(info->version, RTL8169_VERSION); | |
775 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
776 | } | |
777 | ||
778 | static int rtl8169_get_regs_len(struct net_device *dev) | |
779 | { | |
780 | return R8169_REGS_SIZE; | |
781 | } | |
782 | ||
783 | static int rtl8169_set_speed_tbi(struct net_device *dev, | |
784 | u8 autoneg, u16 speed, u8 duplex) | |
785 | { | |
786 | struct rtl8169_private *tp = netdev_priv(dev); | |
787 | void __iomem *ioaddr = tp->mmio_addr; | |
788 | int ret = 0; | |
789 | u32 reg; | |
790 | ||
791 | reg = RTL_R32(TBICSR); | |
792 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && | |
793 | (duplex == DUPLEX_FULL)) { | |
794 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); | |
795 | } else if (autoneg == AUTONEG_ENABLE) | |
796 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); | |
797 | else { | |
b57b7e5a SH |
798 | if (netif_msg_link(tp)) { |
799 | printk(KERN_WARNING "%s: " | |
800 | "incorrect speed setting refused in TBI mode\n", | |
801 | dev->name); | |
802 | } | |
1da177e4 LT |
803 | ret = -EOPNOTSUPP; |
804 | } | |
805 | ||
806 | return ret; | |
807 | } | |
808 | ||
809 | static int rtl8169_set_speed_xmii(struct net_device *dev, | |
810 | u8 autoneg, u16 speed, u8 duplex) | |
811 | { | |
812 | struct rtl8169_private *tp = netdev_priv(dev); | |
813 | void __iomem *ioaddr = tp->mmio_addr; | |
814 | int auto_nego, giga_ctrl; | |
815 | ||
64e4bfb4 FR |
816 | auto_nego = mdio_read(ioaddr, MII_ADVERTISE); |
817 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | | |
818 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
819 | giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); | |
820 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
1da177e4 LT |
821 | |
822 | if (autoneg == AUTONEG_ENABLE) { | |
64e4bfb4 FR |
823 | auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
824 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
825 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; | |
1da177e4 LT |
826 | } else { |
827 | if (speed == SPEED_10) | |
64e4bfb4 | 828 | auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; |
1da177e4 | 829 | else if (speed == SPEED_100) |
64e4bfb4 | 830 | auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; |
1da177e4 | 831 | else if (speed == SPEED_1000) |
64e4bfb4 | 832 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; |
1da177e4 LT |
833 | |
834 | if (duplex == DUPLEX_HALF) | |
64e4bfb4 | 835 | auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); |
726ecdcf AG |
836 | |
837 | if (duplex == DUPLEX_FULL) | |
64e4bfb4 | 838 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); |
bcf0bf90 FR |
839 | |
840 | /* This tweak comes straight from Realtek's driver. */ | |
841 | if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && | |
e3cf0cc0 FR |
842 | ((tp->mac_version == RTL_GIGA_MAC_VER_13) || |
843 | (tp->mac_version == RTL_GIGA_MAC_VER_16))) { | |
64e4bfb4 | 844 | auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; |
bcf0bf90 FR |
845 | } |
846 | } | |
847 | ||
2857ffb7 FR |
848 | /* The 8100e/8101e/8102e do Fast Ethernet only. */ |
849 | if ((tp->mac_version == RTL_GIGA_MAC_VER_07) || | |
850 | (tp->mac_version == RTL_GIGA_MAC_VER_08) || | |
851 | (tp->mac_version == RTL_GIGA_MAC_VER_09) || | |
852 | (tp->mac_version == RTL_GIGA_MAC_VER_10) || | |
853 | (tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
bcf0bf90 | 854 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || |
e3cf0cc0 FR |
855 | (tp->mac_version == RTL_GIGA_MAC_VER_15) || |
856 | (tp->mac_version == RTL_GIGA_MAC_VER_16)) { | |
64e4bfb4 | 857 | if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) && |
bcf0bf90 FR |
858 | netif_msg_link(tp)) { |
859 | printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", | |
860 | dev->name); | |
861 | } | |
64e4bfb4 | 862 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
1da177e4 LT |
863 | } |
864 | ||
623a1593 FR |
865 | auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
866 | ||
e3cf0cc0 FR |
867 | if ((tp->mac_version == RTL_GIGA_MAC_VER_12) || |
868 | (tp->mac_version == RTL_GIGA_MAC_VER_17)) { | |
2584fbc3 RS |
869 | /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */ |
870 | mdio_write(ioaddr, 0x1f, 0x0000); | |
871 | mdio_write(ioaddr, 0x0e, 0x0000); | |
872 | } | |
873 | ||
1da177e4 LT |
874 | tp->phy_auto_nego_reg = auto_nego; |
875 | tp->phy_1000_ctrl_reg = giga_ctrl; | |
876 | ||
64e4bfb4 FR |
877 | mdio_write(ioaddr, MII_ADVERTISE, auto_nego); |
878 | mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); | |
879 | mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); | |
1da177e4 LT |
880 | return 0; |
881 | } | |
882 | ||
883 | static int rtl8169_set_speed(struct net_device *dev, | |
884 | u8 autoneg, u16 speed, u8 duplex) | |
885 | { | |
886 | struct rtl8169_private *tp = netdev_priv(dev); | |
887 | int ret; | |
888 | ||
889 | ret = tp->set_speed(dev, autoneg, speed, duplex); | |
890 | ||
64e4bfb4 | 891 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
892 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); |
893 | ||
894 | return ret; | |
895 | } | |
896 | ||
897 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
898 | { | |
899 | struct rtl8169_private *tp = netdev_priv(dev); | |
900 | unsigned long flags; | |
901 | int ret; | |
902 | ||
903 | spin_lock_irqsave(&tp->lock, flags); | |
904 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); | |
905 | spin_unlock_irqrestore(&tp->lock, flags); | |
5b0384f4 | 906 | |
1da177e4 LT |
907 | return ret; |
908 | } | |
909 | ||
910 | static u32 rtl8169_get_rx_csum(struct net_device *dev) | |
911 | { | |
912 | struct rtl8169_private *tp = netdev_priv(dev); | |
913 | ||
914 | return tp->cp_cmd & RxChkSum; | |
915 | } | |
916 | ||
917 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) | |
918 | { | |
919 | struct rtl8169_private *tp = netdev_priv(dev); | |
920 | void __iomem *ioaddr = tp->mmio_addr; | |
921 | unsigned long flags; | |
922 | ||
923 | spin_lock_irqsave(&tp->lock, flags); | |
924 | ||
925 | if (data) | |
926 | tp->cp_cmd |= RxChkSum; | |
927 | else | |
928 | tp->cp_cmd &= ~RxChkSum; | |
929 | ||
930 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
931 | RTL_R16(CPlusCmd); | |
932 | ||
933 | spin_unlock_irqrestore(&tp->lock, flags); | |
934 | ||
935 | return 0; | |
936 | } | |
937 | ||
938 | #ifdef CONFIG_R8169_VLAN | |
939 | ||
940 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
941 | struct sk_buff *skb) | |
942 | { | |
943 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? | |
944 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; | |
945 | } | |
946 | ||
947 | static void rtl8169_vlan_rx_register(struct net_device *dev, | |
948 | struct vlan_group *grp) | |
949 | { | |
950 | struct rtl8169_private *tp = netdev_priv(dev); | |
951 | void __iomem *ioaddr = tp->mmio_addr; | |
952 | unsigned long flags; | |
953 | ||
954 | spin_lock_irqsave(&tp->lock, flags); | |
955 | tp->vlgrp = grp; | |
956 | if (tp->vlgrp) | |
957 | tp->cp_cmd |= RxVlan; | |
958 | else | |
959 | tp->cp_cmd &= ~RxVlan; | |
960 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
961 | RTL_R16(CPlusCmd); | |
962 | spin_unlock_irqrestore(&tp->lock, flags); | |
963 | } | |
964 | ||
1da177e4 LT |
965 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
966 | struct sk_buff *skb) | |
967 | { | |
968 | u32 opts2 = le32_to_cpu(desc->opts2); | |
865c652d | 969 | struct vlan_group *vlgrp = tp->vlgrp; |
1da177e4 LT |
970 | int ret; |
971 | ||
865c652d FR |
972 | if (vlgrp && (opts2 & RxVlanTag)) { |
973 | vlan_hwaccel_receive_skb(skb, vlgrp, swab16(opts2 & 0xffff)); | |
1da177e4 LT |
974 | ret = 0; |
975 | } else | |
976 | ret = -1; | |
977 | desc->opts2 = 0; | |
978 | return ret; | |
979 | } | |
980 | ||
981 | #else /* !CONFIG_R8169_VLAN */ | |
982 | ||
983 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
984 | struct sk_buff *skb) | |
985 | { | |
986 | return 0; | |
987 | } | |
988 | ||
989 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
990 | struct sk_buff *skb) | |
991 | { | |
992 | return -1; | |
993 | } | |
994 | ||
995 | #endif | |
996 | ||
ccdffb9a | 997 | static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
998 | { |
999 | struct rtl8169_private *tp = netdev_priv(dev); | |
1000 | void __iomem *ioaddr = tp->mmio_addr; | |
1001 | u32 status; | |
1002 | ||
1003 | cmd->supported = | |
1004 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; | |
1005 | cmd->port = PORT_FIBRE; | |
1006 | cmd->transceiver = XCVR_INTERNAL; | |
1007 | ||
1008 | status = RTL_R32(TBICSR); | |
1009 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; | |
1010 | cmd->autoneg = !!(status & TBINwEnable); | |
1011 | ||
1012 | cmd->speed = SPEED_1000; | |
1013 | cmd->duplex = DUPLEX_FULL; /* Always set */ | |
ccdffb9a FR |
1014 | |
1015 | return 0; | |
1da177e4 LT |
1016 | } |
1017 | ||
ccdffb9a | 1018 | static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
1019 | { |
1020 | struct rtl8169_private *tp = netdev_priv(dev); | |
ccdffb9a FR |
1021 | |
1022 | return mii_ethtool_gset(&tp->mii, cmd); | |
1da177e4 LT |
1023 | } |
1024 | ||
1025 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1026 | { | |
1027 | struct rtl8169_private *tp = netdev_priv(dev); | |
1028 | unsigned long flags; | |
ccdffb9a | 1029 | int rc; |
1da177e4 LT |
1030 | |
1031 | spin_lock_irqsave(&tp->lock, flags); | |
1032 | ||
ccdffb9a | 1033 | rc = tp->get_settings(dev, cmd); |
1da177e4 LT |
1034 | |
1035 | spin_unlock_irqrestore(&tp->lock, flags); | |
ccdffb9a | 1036 | return rc; |
1da177e4 LT |
1037 | } |
1038 | ||
1039 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1040 | void *p) | |
1041 | { | |
5b0384f4 FR |
1042 | struct rtl8169_private *tp = netdev_priv(dev); |
1043 | unsigned long flags; | |
1da177e4 | 1044 | |
5b0384f4 FR |
1045 | if (regs->len > R8169_REGS_SIZE) |
1046 | regs->len = R8169_REGS_SIZE; | |
1da177e4 | 1047 | |
5b0384f4 FR |
1048 | spin_lock_irqsave(&tp->lock, flags); |
1049 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
1050 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
1051 | } |
1052 | ||
b57b7e5a SH |
1053 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
1054 | { | |
1055 | struct rtl8169_private *tp = netdev_priv(dev); | |
1056 | ||
1057 | return tp->msg_enable; | |
1058 | } | |
1059 | ||
1060 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) | |
1061 | { | |
1062 | struct rtl8169_private *tp = netdev_priv(dev); | |
1063 | ||
1064 | tp->msg_enable = value; | |
1065 | } | |
1066 | ||
d4a3a0fc SH |
1067 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
1068 | "tx_packets", | |
1069 | "rx_packets", | |
1070 | "tx_errors", | |
1071 | "rx_errors", | |
1072 | "rx_missed", | |
1073 | "align_errors", | |
1074 | "tx_single_collisions", | |
1075 | "tx_multi_collisions", | |
1076 | "unicast", | |
1077 | "broadcast", | |
1078 | "multicast", | |
1079 | "tx_aborted", | |
1080 | "tx_underrun", | |
1081 | }; | |
1082 | ||
1083 | struct rtl8169_counters { | |
b1eab701 AV |
1084 | __le64 tx_packets; |
1085 | __le64 rx_packets; | |
1086 | __le64 tx_errors; | |
1087 | __le32 rx_errors; | |
1088 | __le16 rx_missed; | |
1089 | __le16 align_errors; | |
1090 | __le32 tx_one_collision; | |
1091 | __le32 tx_multi_collision; | |
1092 | __le64 rx_unicast; | |
1093 | __le64 rx_broadcast; | |
1094 | __le32 rx_multicast; | |
1095 | __le16 tx_aborted; | |
1096 | __le16 tx_underun; | |
d4a3a0fc SH |
1097 | }; |
1098 | ||
b9f2c044 | 1099 | static int rtl8169_get_sset_count(struct net_device *dev, int sset) |
d4a3a0fc | 1100 | { |
b9f2c044 JG |
1101 | switch (sset) { |
1102 | case ETH_SS_STATS: | |
1103 | return ARRAY_SIZE(rtl8169_gstrings); | |
1104 | default: | |
1105 | return -EOPNOTSUPP; | |
1106 | } | |
d4a3a0fc SH |
1107 | } |
1108 | ||
1109 | static void rtl8169_get_ethtool_stats(struct net_device *dev, | |
1110 | struct ethtool_stats *stats, u64 *data) | |
1111 | { | |
1112 | struct rtl8169_private *tp = netdev_priv(dev); | |
1113 | void __iomem *ioaddr = tp->mmio_addr; | |
1114 | struct rtl8169_counters *counters; | |
1115 | dma_addr_t paddr; | |
1116 | u32 cmd; | |
1117 | ||
1118 | ASSERT_RTNL(); | |
1119 | ||
1120 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); | |
1121 | if (!counters) | |
1122 | return; | |
1123 | ||
1124 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); | |
1125 | cmd = (u64)paddr & DMA_32BIT_MASK; | |
1126 | RTL_W32(CounterAddrLow, cmd); | |
1127 | RTL_W32(CounterAddrLow, cmd | CounterDump); | |
1128 | ||
1129 | while (RTL_R32(CounterAddrLow) & CounterDump) { | |
1130 | if (msleep_interruptible(1)) | |
1131 | break; | |
1132 | } | |
1133 | ||
1134 | RTL_W32(CounterAddrLow, 0); | |
1135 | RTL_W32(CounterAddrHigh, 0); | |
1136 | ||
5b0384f4 | 1137 | data[0] = le64_to_cpu(counters->tx_packets); |
d4a3a0fc SH |
1138 | data[1] = le64_to_cpu(counters->rx_packets); |
1139 | data[2] = le64_to_cpu(counters->tx_errors); | |
1140 | data[3] = le32_to_cpu(counters->rx_errors); | |
1141 | data[4] = le16_to_cpu(counters->rx_missed); | |
1142 | data[5] = le16_to_cpu(counters->align_errors); | |
1143 | data[6] = le32_to_cpu(counters->tx_one_collision); | |
1144 | data[7] = le32_to_cpu(counters->tx_multi_collision); | |
1145 | data[8] = le64_to_cpu(counters->rx_unicast); | |
1146 | data[9] = le64_to_cpu(counters->rx_broadcast); | |
1147 | data[10] = le32_to_cpu(counters->rx_multicast); | |
1148 | data[11] = le16_to_cpu(counters->tx_aborted); | |
1149 | data[12] = le16_to_cpu(counters->tx_underun); | |
1150 | ||
1151 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); | |
1152 | } | |
1153 | ||
1154 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1155 | { | |
1156 | switch(stringset) { | |
1157 | case ETH_SS_STATS: | |
1158 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); | |
1159 | break; | |
1160 | } | |
1161 | } | |
1162 | ||
7282d491 | 1163 | static const struct ethtool_ops rtl8169_ethtool_ops = { |
1da177e4 LT |
1164 | .get_drvinfo = rtl8169_get_drvinfo, |
1165 | .get_regs_len = rtl8169_get_regs_len, | |
1166 | .get_link = ethtool_op_get_link, | |
1167 | .get_settings = rtl8169_get_settings, | |
1168 | .set_settings = rtl8169_set_settings, | |
b57b7e5a SH |
1169 | .get_msglevel = rtl8169_get_msglevel, |
1170 | .set_msglevel = rtl8169_set_msglevel, | |
1da177e4 LT |
1171 | .get_rx_csum = rtl8169_get_rx_csum, |
1172 | .set_rx_csum = rtl8169_set_rx_csum, | |
1da177e4 | 1173 | .set_tx_csum = ethtool_op_set_tx_csum, |
1da177e4 | 1174 | .set_sg = ethtool_op_set_sg, |
1da177e4 LT |
1175 | .set_tso = ethtool_op_set_tso, |
1176 | .get_regs = rtl8169_get_regs, | |
61a4dcc2 FR |
1177 | .get_wol = rtl8169_get_wol, |
1178 | .set_wol = rtl8169_set_wol, | |
d4a3a0fc | 1179 | .get_strings = rtl8169_get_strings, |
b9f2c044 | 1180 | .get_sset_count = rtl8169_get_sset_count, |
d4a3a0fc | 1181 | .get_ethtool_stats = rtl8169_get_ethtool_stats, |
1da177e4 LT |
1182 | }; |
1183 | ||
07d3f51f FR |
1184 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, |
1185 | int bitnum, int bitval) | |
1da177e4 LT |
1186 | { |
1187 | int val; | |
1188 | ||
1189 | val = mdio_read(ioaddr, reg); | |
1190 | val = (bitval == 1) ? | |
1191 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); | |
5b0384f4 | 1192 | mdio_write(ioaddr, reg, val & 0xffff); |
1da177e4 LT |
1193 | } |
1194 | ||
07d3f51f FR |
1195 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, |
1196 | void __iomem *ioaddr) | |
1da177e4 | 1197 | { |
0e485150 FR |
1198 | /* |
1199 | * The driver currently handles the 8168Bf and the 8168Be identically | |
1200 | * but they can be identified more specifically through the test below | |
1201 | * if needed: | |
1202 | * | |
1203 | * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be | |
0127215c FR |
1204 | * |
1205 | * Same thing for the 8101Eb and the 8101Ec: | |
1206 | * | |
1207 | * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec | |
0e485150 | 1208 | */ |
1da177e4 LT |
1209 | const struct { |
1210 | u32 mask; | |
e3cf0cc0 | 1211 | u32 val; |
1da177e4 LT |
1212 | int mac_version; |
1213 | } mac_info[] = { | |
e3cf0cc0 FR |
1214 | /* 8168B family. */ |
1215 | { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_18 }, | |
1216 | { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 }, | |
1217 | { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 }, | |
1218 | { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_20 }, | |
1219 | ||
1220 | /* 8168B family. */ | |
1221 | { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 }, | |
1222 | { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 }, | |
1223 | { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 }, | |
1224 | { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 }, | |
1225 | ||
1226 | /* 8101 family. */ | |
2857ffb7 FR |
1227 | { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 }, |
1228 | { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 }, | |
1229 | { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 }, | |
1230 | { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 }, | |
1231 | { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 }, | |
1232 | { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 }, | |
e3cf0cc0 | 1233 | { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 }, |
2857ffb7 | 1234 | { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 }, |
e3cf0cc0 | 1235 | { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 }, |
2857ffb7 FR |
1236 | { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 }, |
1237 | { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 }, | |
e3cf0cc0 FR |
1238 | { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 }, |
1239 | /* FIXME: where did these entries come from ? -- FR */ | |
1240 | { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 }, | |
1241 | { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 }, | |
1242 | ||
1243 | /* 8110 family. */ | |
1244 | { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 }, | |
1245 | { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 }, | |
1246 | { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 }, | |
1247 | { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 }, | |
1248 | { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 }, | |
1249 | { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 }, | |
1250 | ||
1251 | { 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ | |
1da177e4 LT |
1252 | }, *p = mac_info; |
1253 | u32 reg; | |
1254 | ||
e3cf0cc0 FR |
1255 | reg = RTL_R32(TxConfig); |
1256 | while ((reg & p->mask) != p->val) | |
1da177e4 LT |
1257 | p++; |
1258 | tp->mac_version = p->mac_version; | |
e3cf0cc0 FR |
1259 | |
1260 | if (p->mask == 0x00000000) { | |
1261 | struct pci_dev *pdev = tp->pci_dev; | |
1262 | ||
1263 | dev_info(&pdev->dev, "unknown MAC (%08x)\n", reg); | |
1264 | } | |
1da177e4 LT |
1265 | } |
1266 | ||
1267 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) | |
1268 | { | |
bcf0bf90 | 1269 | dprintk("mac_version = 0x%02x\n", tp->mac_version); |
1da177e4 LT |
1270 | } |
1271 | ||
867763c1 FR |
1272 | struct phy_reg { |
1273 | u16 reg; | |
1274 | u16 val; | |
1275 | }; | |
1276 | ||
1277 | static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len) | |
1278 | { | |
1279 | while (len-- > 0) { | |
1280 | mdio_write(ioaddr, regs->reg, regs->val); | |
1281 | regs++; | |
1282 | } | |
1283 | } | |
1284 | ||
5615d9f1 | 1285 | static void rtl8169s_hw_phy_config(void __iomem *ioaddr) |
1da177e4 | 1286 | { |
1da177e4 LT |
1287 | struct { |
1288 | u16 regs[5]; /* Beware of bit-sign propagation */ | |
1289 | } phy_magic[5] = { { | |
1290 | { 0x0000, //w 4 15 12 0 | |
1291 | 0x00a1, //w 3 15 0 00a1 | |
1292 | 0x0008, //w 2 15 0 0008 | |
1293 | 0x1020, //w 1 15 0 1020 | |
1294 | 0x1000 } },{ //w 0 15 0 1000 | |
1295 | { 0x7000, //w 4 15 12 7 | |
1296 | 0xff41, //w 3 15 0 ff41 | |
1297 | 0xde60, //w 2 15 0 de60 | |
1298 | 0x0140, //w 1 15 0 0140 | |
1299 | 0x0077 } },{ //w 0 15 0 0077 | |
1300 | { 0xa000, //w 4 15 12 a | |
1301 | 0xdf01, //w 3 15 0 df01 | |
1302 | 0xdf20, //w 2 15 0 df20 | |
1303 | 0xff95, //w 1 15 0 ff95 | |
1304 | 0xfa00 } },{ //w 0 15 0 fa00 | |
1305 | { 0xb000, //w 4 15 12 b | |
1306 | 0xff41, //w 3 15 0 ff41 | |
1307 | 0xde20, //w 2 15 0 de20 | |
1308 | 0x0140, //w 1 15 0 0140 | |
1309 | 0x00bb } },{ //w 0 15 0 00bb | |
1310 | { 0xf000, //w 4 15 12 f | |
1311 | 0xdf01, //w 3 15 0 df01 | |
1312 | 0xdf20, //w 2 15 0 df20 | |
1313 | 0xff95, //w 1 15 0 ff95 | |
1314 | 0xbf00 } //w 0 15 0 bf00 | |
1315 | } | |
1316 | }, *p = phy_magic; | |
07d3f51f | 1317 | unsigned int i; |
1da177e4 | 1318 | |
a441d7b6 FR |
1319 | mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1 |
1320 | mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000 | |
1321 | mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7 | |
1da177e4 LT |
1322 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 |
1323 | ||
1324 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { | |
1325 | int val, pos = 4; | |
1326 | ||
1327 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); | |
1328 | mdio_write(ioaddr, pos, val); | |
1329 | while (--pos >= 0) | |
1330 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); | |
1331 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 | |
1332 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1333 | } | |
a441d7b6 | 1334 | mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0 |
1da177e4 LT |
1335 | } |
1336 | ||
5615d9f1 FR |
1337 | static void rtl8169sb_hw_phy_config(void __iomem *ioaddr) |
1338 | { | |
a441d7b6 FR |
1339 | struct phy_reg phy_reg_init[] = { |
1340 | { 0x1f, 0x0002 }, | |
1341 | { 0x01, 0x90d0 }, | |
1342 | { 0x1f, 0x0000 } | |
1343 | }; | |
1344 | ||
1345 | rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); | |
5615d9f1 FR |
1346 | } |
1347 | ||
867763c1 FR |
1348 | static void rtl8168cp_hw_phy_config(void __iomem *ioaddr) |
1349 | { | |
1350 | struct phy_reg phy_reg_init[] = { | |
1351 | { 0x1f, 0x0000 }, | |
1352 | { 0x1d, 0x0f00 }, | |
1353 | { 0x1f, 0x0002 }, | |
1354 | { 0x0c, 0x1ec8 }, | |
1355 | { 0x1f, 0x0000 } | |
1356 | }; | |
1357 | ||
1358 | rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); | |
1359 | } | |
1360 | ||
1361 | static void rtl8168c_hw_phy_config(void __iomem *ioaddr) | |
1362 | { | |
1363 | struct phy_reg phy_reg_init[] = { | |
a3f80671 FR |
1364 | { 0x1f, 0x0001 }, |
1365 | { 0x12, 0x2300 }, | |
867763c1 FR |
1366 | { 0x1f, 0x0002 }, |
1367 | { 0x00, 0x88d4 }, | |
1368 | { 0x01, 0x82b1 }, | |
1369 | { 0x03, 0x7002 }, | |
1370 | { 0x08, 0x9e30 }, | |
1371 | { 0x09, 0x01f0 }, | |
1372 | { 0x0a, 0x5500 }, | |
1373 | { 0x0c, 0x00c8 }, | |
1374 | { 0x1f, 0x0003 }, | |
1375 | { 0x12, 0xc096 }, | |
1376 | { 0x16, 0x000a }, | |
1377 | { 0x1f, 0x0000 } | |
1378 | }; | |
1379 | ||
1380 | rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); | |
1381 | } | |
1382 | ||
7da97ec9 FR |
1383 | static void rtl8168cx_hw_phy_config(void __iomem *ioaddr) |
1384 | { | |
1385 | struct phy_reg phy_reg_init[] = { | |
1386 | { 0x1f, 0x0000 }, | |
1387 | { 0x12, 0x2300 }, | |
1388 | { 0x1f, 0x0003 }, | |
1389 | { 0x16, 0x0f0a }, | |
1390 | { 0x1f, 0x0000 }, | |
1391 | { 0x1f, 0x0002 }, | |
1392 | { 0x0c, 0x7eb8 }, | |
1393 | { 0x1f, 0x0000 } | |
1394 | }; | |
1395 | ||
1396 | rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); | |
1397 | } | |
1398 | ||
2857ffb7 FR |
1399 | static void rtl8102e_hw_phy_config(void __iomem *ioaddr) |
1400 | { | |
1401 | struct phy_reg phy_reg_init[] = { | |
1402 | { 0x1f, 0x0003 }, | |
1403 | { 0x08, 0x441d }, | |
1404 | { 0x01, 0x9100 }, | |
1405 | { 0x1f, 0x0000 } | |
1406 | }; | |
1407 | ||
1408 | mdio_write(ioaddr, 0x1f, 0x0000); | |
1409 | mdio_patch(ioaddr, 0x11, 1 << 12); | |
1410 | mdio_patch(ioaddr, 0x19, 1 << 13); | |
1411 | ||
1412 | rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); | |
1413 | } | |
1414 | ||
5615d9f1 FR |
1415 | static void rtl_hw_phy_config(struct net_device *dev) |
1416 | { | |
1417 | struct rtl8169_private *tp = netdev_priv(dev); | |
1418 | void __iomem *ioaddr = tp->mmio_addr; | |
1419 | ||
1420 | rtl8169_print_mac_version(tp); | |
1421 | ||
1422 | switch (tp->mac_version) { | |
1423 | case RTL_GIGA_MAC_VER_01: | |
1424 | break; | |
1425 | case RTL_GIGA_MAC_VER_02: | |
1426 | case RTL_GIGA_MAC_VER_03: | |
1427 | rtl8169s_hw_phy_config(ioaddr); | |
1428 | break; | |
1429 | case RTL_GIGA_MAC_VER_04: | |
1430 | rtl8169sb_hw_phy_config(ioaddr); | |
1431 | break; | |
2857ffb7 FR |
1432 | case RTL_GIGA_MAC_VER_07: |
1433 | case RTL_GIGA_MAC_VER_08: | |
1434 | case RTL_GIGA_MAC_VER_09: | |
1435 | rtl8102e_hw_phy_config(ioaddr); | |
1436 | break; | |
867763c1 FR |
1437 | case RTL_GIGA_MAC_VER_18: |
1438 | rtl8168cp_hw_phy_config(ioaddr); | |
1439 | break; | |
1440 | case RTL_GIGA_MAC_VER_19: | |
1441 | rtl8168c_hw_phy_config(ioaddr); | |
1442 | break; | |
7da97ec9 FR |
1443 | case RTL_GIGA_MAC_VER_20: |
1444 | rtl8168cx_hw_phy_config(ioaddr); | |
1445 | break; | |
5615d9f1 FR |
1446 | default: |
1447 | break; | |
1448 | } | |
1449 | } | |
1450 | ||
1da177e4 LT |
1451 | static void rtl8169_phy_timer(unsigned long __opaque) |
1452 | { | |
1453 | struct net_device *dev = (struct net_device *)__opaque; | |
1454 | struct rtl8169_private *tp = netdev_priv(dev); | |
1455 | struct timer_list *timer = &tp->timer; | |
1456 | void __iomem *ioaddr = tp->mmio_addr; | |
1457 | unsigned long timeout = RTL8169_PHY_TIMEOUT; | |
1458 | ||
bcf0bf90 | 1459 | assert(tp->mac_version > RTL_GIGA_MAC_VER_01); |
1da177e4 | 1460 | |
64e4bfb4 | 1461 | if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
1462 | return; |
1463 | ||
1464 | spin_lock_irq(&tp->lock); | |
1465 | ||
1466 | if (tp->phy_reset_pending(ioaddr)) { | |
5b0384f4 | 1467 | /* |
1da177e4 LT |
1468 | * A busy loop could burn quite a few cycles on nowadays CPU. |
1469 | * Let's delay the execution of the timer for a few ticks. | |
1470 | */ | |
1471 | timeout = HZ/10; | |
1472 | goto out_mod_timer; | |
1473 | } | |
1474 | ||
1475 | if (tp->link_ok(ioaddr)) | |
1476 | goto out_unlock; | |
1477 | ||
b57b7e5a SH |
1478 | if (netif_msg_link(tp)) |
1479 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); | |
1da177e4 LT |
1480 | |
1481 | tp->phy_reset_enable(ioaddr); | |
1482 | ||
1483 | out_mod_timer: | |
1484 | mod_timer(timer, jiffies + timeout); | |
1485 | out_unlock: | |
1486 | spin_unlock_irq(&tp->lock); | |
1487 | } | |
1488 | ||
1489 | static inline void rtl8169_delete_timer(struct net_device *dev) | |
1490 | { | |
1491 | struct rtl8169_private *tp = netdev_priv(dev); | |
1492 | struct timer_list *timer = &tp->timer; | |
1493 | ||
e179bb7b | 1494 | if (tp->mac_version <= RTL_GIGA_MAC_VER_01) |
1da177e4 LT |
1495 | return; |
1496 | ||
1497 | del_timer_sync(timer); | |
1498 | } | |
1499 | ||
1500 | static inline void rtl8169_request_timer(struct net_device *dev) | |
1501 | { | |
1502 | struct rtl8169_private *tp = netdev_priv(dev); | |
1503 | struct timer_list *timer = &tp->timer; | |
1504 | ||
e179bb7b | 1505 | if (tp->mac_version <= RTL_GIGA_MAC_VER_01) |
1da177e4 LT |
1506 | return; |
1507 | ||
2efa53f3 | 1508 | mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT); |
1da177e4 LT |
1509 | } |
1510 | ||
1511 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1512 | /* | |
1513 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
1514 | * without having to re-enable interrupts. It's not called while | |
1515 | * the interrupt routine is executing. | |
1516 | */ | |
1517 | static void rtl8169_netpoll(struct net_device *dev) | |
1518 | { | |
1519 | struct rtl8169_private *tp = netdev_priv(dev); | |
1520 | struct pci_dev *pdev = tp->pci_dev; | |
1521 | ||
1522 | disable_irq(pdev->irq); | |
7d12e780 | 1523 | rtl8169_interrupt(pdev->irq, dev); |
1da177e4 LT |
1524 | enable_irq(pdev->irq); |
1525 | } | |
1526 | #endif | |
1527 | ||
1528 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, | |
1529 | void __iomem *ioaddr) | |
1530 | { | |
1531 | iounmap(ioaddr); | |
1532 | pci_release_regions(pdev); | |
1533 | pci_disable_device(pdev); | |
1534 | free_netdev(dev); | |
1535 | } | |
1536 | ||
bf793295 FR |
1537 | static void rtl8169_phy_reset(struct net_device *dev, |
1538 | struct rtl8169_private *tp) | |
1539 | { | |
1540 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 1541 | unsigned int i; |
bf793295 FR |
1542 | |
1543 | tp->phy_reset_enable(ioaddr); | |
1544 | for (i = 0; i < 100; i++) { | |
1545 | if (!tp->phy_reset_pending(ioaddr)) | |
1546 | return; | |
1547 | msleep(1); | |
1548 | } | |
1549 | if (netif_msg_link(tp)) | |
1550 | printk(KERN_ERR "%s: PHY reset failed.\n", dev->name); | |
1551 | } | |
1552 | ||
4ff96fa6 FR |
1553 | static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) |
1554 | { | |
1555 | void __iomem *ioaddr = tp->mmio_addr; | |
4ff96fa6 | 1556 | |
5615d9f1 | 1557 | rtl_hw_phy_config(dev); |
4ff96fa6 | 1558 | |
77332894 MS |
1559 | if (tp->mac_version <= RTL_GIGA_MAC_VER_06) { |
1560 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1561 | RTL_W8(0x82, 0x01); | |
1562 | } | |
4ff96fa6 | 1563 | |
6dccd16b FR |
1564 | pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); |
1565 | ||
1566 | if (tp->mac_version <= RTL_GIGA_MAC_VER_06) | |
1567 | pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); | |
4ff96fa6 | 1568 | |
bcf0bf90 | 1569 | if (tp->mac_version == RTL_GIGA_MAC_VER_02) { |
4ff96fa6 FR |
1570 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
1571 | RTL_W8(0x82, 0x01); | |
1572 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); | |
1573 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 | |
1574 | } | |
1575 | ||
bf793295 FR |
1576 | rtl8169_phy_reset(dev, tp); |
1577 | ||
901dda2b FR |
1578 | /* |
1579 | * rtl8169_set_speed_xmii takes good care of the Fast Ethernet | |
1580 | * only 8101. Don't panic. | |
1581 | */ | |
1582 | rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL); | |
4ff96fa6 FR |
1583 | |
1584 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) | |
1585 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); | |
1586 | } | |
1587 | ||
773d2021 FR |
1588 | static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) |
1589 | { | |
1590 | void __iomem *ioaddr = tp->mmio_addr; | |
1591 | u32 high; | |
1592 | u32 low; | |
1593 | ||
1594 | low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24); | |
1595 | high = addr[4] | (addr[5] << 8); | |
1596 | ||
1597 | spin_lock_irq(&tp->lock); | |
1598 | ||
1599 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
1600 | RTL_W32(MAC0, low); | |
1601 | RTL_W32(MAC4, high); | |
1602 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1603 | ||
1604 | spin_unlock_irq(&tp->lock); | |
1605 | } | |
1606 | ||
1607 | static int rtl_set_mac_address(struct net_device *dev, void *p) | |
1608 | { | |
1609 | struct rtl8169_private *tp = netdev_priv(dev); | |
1610 | struct sockaddr *addr = p; | |
1611 | ||
1612 | if (!is_valid_ether_addr(addr->sa_data)) | |
1613 | return -EADDRNOTAVAIL; | |
1614 | ||
1615 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1616 | ||
1617 | rtl_rar_set(tp, dev->dev_addr); | |
1618 | ||
1619 | return 0; | |
1620 | } | |
1621 | ||
5f787a1a FR |
1622 | static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1623 | { | |
1624 | struct rtl8169_private *tp = netdev_priv(dev); | |
1625 | struct mii_ioctl_data *data = if_mii(ifr); | |
1626 | ||
1627 | if (!netif_running(dev)) | |
1628 | return -ENODEV; | |
1629 | ||
1630 | switch (cmd) { | |
1631 | case SIOCGMIIPHY: | |
1632 | data->phy_id = 32; /* Internal PHY */ | |
1633 | return 0; | |
1634 | ||
1635 | case SIOCGMIIREG: | |
1636 | data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f); | |
1637 | return 0; | |
1638 | ||
1639 | case SIOCSMIIREG: | |
1640 | if (!capable(CAP_NET_ADMIN)) | |
1641 | return -EPERM; | |
1642 | mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in); | |
1643 | return 0; | |
1644 | } | |
1645 | return -EOPNOTSUPP; | |
1646 | } | |
1647 | ||
0e485150 FR |
1648 | static const struct rtl_cfg_info { |
1649 | void (*hw_start)(struct net_device *); | |
1650 | unsigned int region; | |
1651 | unsigned int align; | |
1652 | u16 intr_event; | |
1653 | u16 napi_event; | |
ccdffb9a | 1654 | unsigned features; |
0e485150 FR |
1655 | } rtl_cfg_infos [] = { |
1656 | [RTL_CFG_0] = { | |
1657 | .hw_start = rtl_hw_start_8169, | |
1658 | .region = 1, | |
e9f63f30 | 1659 | .align = 0, |
0e485150 FR |
1660 | .intr_event = SYSErr | LinkChg | RxOverflow | |
1661 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc | 1662 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, |
ccdffb9a | 1663 | .features = RTL_FEATURE_GMII |
0e485150 FR |
1664 | }, |
1665 | [RTL_CFG_1] = { | |
1666 | .hw_start = rtl_hw_start_8168, | |
1667 | .region = 2, | |
1668 | .align = 8, | |
1669 | .intr_event = SYSErr | LinkChg | RxOverflow | | |
1670 | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc | 1671 | .napi_event = TxErr | TxOK | RxOK | RxOverflow, |
ccdffb9a | 1672 | .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI |
0e485150 FR |
1673 | }, |
1674 | [RTL_CFG_2] = { | |
1675 | .hw_start = rtl_hw_start_8101, | |
1676 | .region = 2, | |
1677 | .align = 8, | |
1678 | .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout | | |
1679 | RxFIFOOver | TxErr | TxOK | RxOK | RxErr, | |
fbac58fc | 1680 | .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, |
ccdffb9a | 1681 | .features = RTL_FEATURE_MSI |
0e485150 FR |
1682 | } |
1683 | }; | |
1684 | ||
fbac58fc FR |
1685 | /* Cfg9346_Unlock assumed. */ |
1686 | static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr, | |
1687 | const struct rtl_cfg_info *cfg) | |
1688 | { | |
1689 | unsigned msi = 0; | |
1690 | u8 cfg2; | |
1691 | ||
1692 | cfg2 = RTL_R8(Config2) & ~MSIEnable; | |
ccdffb9a | 1693 | if (cfg->features & RTL_FEATURE_MSI) { |
fbac58fc FR |
1694 | if (pci_enable_msi(pdev)) { |
1695 | dev_info(&pdev->dev, "no MSI. Back to INTx.\n"); | |
1696 | } else { | |
1697 | cfg2 |= MSIEnable; | |
1698 | msi = RTL_FEATURE_MSI; | |
1699 | } | |
1700 | } | |
1701 | RTL_W8(Config2, cfg2); | |
1702 | return msi; | |
1703 | } | |
1704 | ||
1705 | static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp) | |
1706 | { | |
1707 | if (tp->features & RTL_FEATURE_MSI) { | |
1708 | pci_disable_msi(pdev); | |
1709 | tp->features &= ~RTL_FEATURE_MSI; | |
1710 | } | |
1711 | } | |
1712 | ||
1da177e4 | 1713 | static int __devinit |
4ff96fa6 | 1714 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 1715 | { |
0e485150 FR |
1716 | const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; |
1717 | const unsigned int region = cfg->region; | |
1da177e4 | 1718 | struct rtl8169_private *tp; |
ccdffb9a | 1719 | struct mii_if_info *mii; |
4ff96fa6 FR |
1720 | struct net_device *dev; |
1721 | void __iomem *ioaddr; | |
07d3f51f FR |
1722 | unsigned int i; |
1723 | int rc; | |
1da177e4 | 1724 | |
4ff96fa6 FR |
1725 | if (netif_msg_drv(&debug)) { |
1726 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", | |
1727 | MODULENAME, RTL8169_VERSION); | |
1728 | } | |
1da177e4 | 1729 | |
1da177e4 | 1730 | dev = alloc_etherdev(sizeof (*tp)); |
4ff96fa6 | 1731 | if (!dev) { |
b57b7e5a | 1732 | if (netif_msg_drv(&debug)) |
9b91cf9d | 1733 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
4ff96fa6 FR |
1734 | rc = -ENOMEM; |
1735 | goto out; | |
1da177e4 LT |
1736 | } |
1737 | ||
1da177e4 LT |
1738 | SET_NETDEV_DEV(dev, &pdev->dev); |
1739 | tp = netdev_priv(dev); | |
c4028958 | 1740 | tp->dev = dev; |
21e197f2 | 1741 | tp->pci_dev = pdev; |
b57b7e5a | 1742 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
1da177e4 | 1743 | |
ccdffb9a FR |
1744 | mii = &tp->mii; |
1745 | mii->dev = dev; | |
1746 | mii->mdio_read = rtl_mdio_read; | |
1747 | mii->mdio_write = rtl_mdio_write; | |
1748 | mii->phy_id_mask = 0x1f; | |
1749 | mii->reg_num_mask = 0x1f; | |
1750 | mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII); | |
1751 | ||
1da177e4 LT |
1752 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
1753 | rc = pci_enable_device(pdev); | |
b57b7e5a | 1754 | if (rc < 0) { |
2e8a538d | 1755 | if (netif_msg_probe(tp)) |
9b91cf9d | 1756 | dev_err(&pdev->dev, "enable failure\n"); |
4ff96fa6 | 1757 | goto err_out_free_dev_1; |
1da177e4 LT |
1758 | } |
1759 | ||
1760 | rc = pci_set_mwi(pdev); | |
1761 | if (rc < 0) | |
4ff96fa6 | 1762 | goto err_out_disable_2; |
1da177e4 | 1763 | |
1da177e4 | 1764 | /* make sure PCI base addr 1 is MMIO */ |
bcf0bf90 | 1765 | if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { |
4ff96fa6 | 1766 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1767 | dev_err(&pdev->dev, |
bcf0bf90 FR |
1768 | "region #%d not an MMIO resource, aborting\n", |
1769 | region); | |
4ff96fa6 | 1770 | } |
1da177e4 | 1771 | rc = -ENODEV; |
4ff96fa6 | 1772 | goto err_out_mwi_3; |
1da177e4 | 1773 | } |
4ff96fa6 | 1774 | |
1da177e4 | 1775 | /* check for weird/broken PCI region reporting */ |
bcf0bf90 | 1776 | if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) { |
4ff96fa6 | 1777 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1778 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1779 | "Invalid PCI region size(s), aborting\n"); |
1780 | } | |
1da177e4 | 1781 | rc = -ENODEV; |
4ff96fa6 | 1782 | goto err_out_mwi_3; |
1da177e4 LT |
1783 | } |
1784 | ||
1785 | rc = pci_request_regions(pdev, MODULENAME); | |
b57b7e5a | 1786 | if (rc < 0) { |
2e8a538d | 1787 | if (netif_msg_probe(tp)) |
9b91cf9d | 1788 | dev_err(&pdev->dev, "could not request regions.\n"); |
4ff96fa6 | 1789 | goto err_out_mwi_3; |
1da177e4 LT |
1790 | } |
1791 | ||
1792 | tp->cp_cmd = PCIMulRW | RxChkSum; | |
1793 | ||
1794 | if ((sizeof(dma_addr_t) > 4) && | |
1795 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { | |
1796 | tp->cp_cmd |= PCIDAC; | |
1797 | dev->features |= NETIF_F_HIGHDMA; | |
1798 | } else { | |
1799 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1800 | if (rc < 0) { | |
4ff96fa6 | 1801 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1802 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1803 | "DMA configuration failed.\n"); |
1804 | } | |
1805 | goto err_out_free_res_4; | |
1da177e4 LT |
1806 | } |
1807 | } | |
1808 | ||
1809 | pci_set_master(pdev); | |
1810 | ||
1811 | /* ioremap MMIO region */ | |
bcf0bf90 | 1812 | ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE); |
4ff96fa6 | 1813 | if (!ioaddr) { |
b57b7e5a | 1814 | if (netif_msg_probe(tp)) |
9b91cf9d | 1815 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
1da177e4 | 1816 | rc = -EIO; |
4ff96fa6 | 1817 | goto err_out_free_res_4; |
1da177e4 LT |
1818 | } |
1819 | ||
9c14ceaf FR |
1820 | tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); |
1821 | if (!tp->pcie_cap && netif_msg_probe(tp)) | |
1822 | dev_info(&pdev->dev, "no PCI Express capability\n"); | |
1823 | ||
1da177e4 LT |
1824 | /* Unneeded ? Don't mess with Mrs. Murphy. */ |
1825 | rtl8169_irq_mask_and_ack(ioaddr); | |
1826 | ||
1827 | /* Soft reset the chip. */ | |
1828 | RTL_W8(ChipCmd, CmdReset); | |
1829 | ||
1830 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 1831 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
1832 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1833 | break; | |
b518fa8e | 1834 | msleep_interruptible(1); |
1da177e4 LT |
1835 | } |
1836 | ||
1837 | /* Identify chip attached to board */ | |
1838 | rtl8169_get_mac_version(tp, ioaddr); | |
1da177e4 LT |
1839 | |
1840 | rtl8169_print_mac_version(tp); | |
1da177e4 | 1841 | |
cee60c37 | 1842 | for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) { |
1da177e4 LT |
1843 | if (tp->mac_version == rtl_chip_info[i].mac_version) |
1844 | break; | |
1845 | } | |
cee60c37 | 1846 | if (i == ARRAY_SIZE(rtl_chip_info)) { |
1da177e4 | 1847 | /* Unknown chip: assume array element #0, original RTL-8169 */ |
b57b7e5a | 1848 | if (netif_msg_probe(tp)) { |
2e8a538d | 1849 | dev_printk(KERN_DEBUG, &pdev->dev, |
4ff96fa6 FR |
1850 | "unknown chip version, assuming %s\n", |
1851 | rtl_chip_info[0].name); | |
b57b7e5a | 1852 | } |
cee60c37 | 1853 | i = 0; |
1da177e4 LT |
1854 | } |
1855 | tp->chipset = i; | |
1856 | ||
5d06a99f FR |
1857 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
1858 | RTL_W8(Config1, RTL_R8(Config1) | PMEnable); | |
1859 | RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); | |
fbac58fc | 1860 | tp->features |= rtl_try_msi(pdev, ioaddr, cfg); |
5d06a99f FR |
1861 | RTL_W8(Cfg9346, Cfg9346_Lock); |
1862 | ||
66ec5d4f FR |
1863 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) && |
1864 | (RTL_R8(PHYstatus) & TBI_Enable)) { | |
1da177e4 LT |
1865 | tp->set_speed = rtl8169_set_speed_tbi; |
1866 | tp->get_settings = rtl8169_gset_tbi; | |
1867 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; | |
1868 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; | |
1869 | tp->link_ok = rtl8169_tbi_link_ok; | |
1870 | ||
64e4bfb4 | 1871 | tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ |
1da177e4 LT |
1872 | } else { |
1873 | tp->set_speed = rtl8169_set_speed_xmii; | |
1874 | tp->get_settings = rtl8169_gset_xmii; | |
1875 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; | |
1876 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; | |
1877 | tp->link_ok = rtl8169_xmii_link_ok; | |
5f787a1a FR |
1878 | |
1879 | dev->do_ioctl = rtl8169_ioctl; | |
1da177e4 LT |
1880 | } |
1881 | ||
1882 | /* Get MAC address. FIXME: read EEPROM */ | |
1883 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1884 | dev->dev_addr[i] = RTL_R8(MAC0 + i); | |
6d6525b7 | 1885 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
1886 | |
1887 | dev->open = rtl8169_open; | |
1888 | dev->hard_start_xmit = rtl8169_start_xmit; | |
1889 | dev->get_stats = rtl8169_get_stats; | |
1890 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); | |
1891 | dev->stop = rtl8169_close; | |
1892 | dev->tx_timeout = rtl8169_tx_timeout; | |
07ce4064 | 1893 | dev->set_multicast_list = rtl_set_rx_mode; |
1da177e4 LT |
1894 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
1895 | dev->irq = pdev->irq; | |
1896 | dev->base_addr = (unsigned long) ioaddr; | |
1897 | dev->change_mtu = rtl8169_change_mtu; | |
773d2021 | 1898 | dev->set_mac_address = rtl_set_mac_address; |
1da177e4 | 1899 | |
bea3348e | 1900 | netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT); |
1da177e4 LT |
1901 | |
1902 | #ifdef CONFIG_R8169_VLAN | |
1903 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1904 | dev->vlan_rx_register = rtl8169_vlan_rx_register; | |
1da177e4 LT |
1905 | #endif |
1906 | ||
1907 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1908 | dev->poll_controller = rtl8169_netpoll; | |
1909 | #endif | |
1910 | ||
1911 | tp->intr_mask = 0xffff; | |
1da177e4 | 1912 | tp->mmio_addr = ioaddr; |
0e485150 FR |
1913 | tp->align = cfg->align; |
1914 | tp->hw_start = cfg->hw_start; | |
1915 | tp->intr_event = cfg->intr_event; | |
1916 | tp->napi_event = cfg->napi_event; | |
1da177e4 | 1917 | |
2efa53f3 FR |
1918 | init_timer(&tp->timer); |
1919 | tp->timer.data = (unsigned long) dev; | |
1920 | tp->timer.function = rtl8169_phy_timer; | |
1921 | ||
1da177e4 LT |
1922 | spin_lock_init(&tp->lock); |
1923 | ||
1924 | rc = register_netdev(dev); | |
4ff96fa6 | 1925 | if (rc < 0) |
fbac58fc | 1926 | goto err_out_msi_5; |
1da177e4 LT |
1927 | |
1928 | pci_set_drvdata(pdev, dev); | |
1929 | ||
b57b7e5a | 1930 | if (netif_msg_probe(tp)) { |
96b9709c FR |
1931 | u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff; |
1932 | ||
b57b7e5a SH |
1933 | printk(KERN_INFO "%s: %s at 0x%lx, " |
1934 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " | |
96b9709c | 1935 | "XID %08x IRQ %d\n", |
b57b7e5a | 1936 | dev->name, |
bcf0bf90 | 1937 | rtl_chip_info[tp->chipset].name, |
b57b7e5a SH |
1938 | dev->base_addr, |
1939 | dev->dev_addr[0], dev->dev_addr[1], | |
1940 | dev->dev_addr[2], dev->dev_addr[3], | |
96b9709c | 1941 | dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq); |
b57b7e5a | 1942 | } |
1da177e4 | 1943 | |
4ff96fa6 | 1944 | rtl8169_init_phy(dev, tp); |
1da177e4 | 1945 | |
4ff96fa6 FR |
1946 | out: |
1947 | return rc; | |
1da177e4 | 1948 | |
fbac58fc FR |
1949 | err_out_msi_5: |
1950 | rtl_disable_msi(pdev, tp); | |
4ff96fa6 FR |
1951 | iounmap(ioaddr); |
1952 | err_out_free_res_4: | |
1953 | pci_release_regions(pdev); | |
1954 | err_out_mwi_3: | |
1955 | pci_clear_mwi(pdev); | |
1956 | err_out_disable_2: | |
1957 | pci_disable_device(pdev); | |
1958 | err_out_free_dev_1: | |
1959 | free_netdev(dev); | |
1960 | goto out; | |
1da177e4 LT |
1961 | } |
1962 | ||
07d3f51f | 1963 | static void __devexit rtl8169_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
1964 | { |
1965 | struct net_device *dev = pci_get_drvdata(pdev); | |
1966 | struct rtl8169_private *tp = netdev_priv(dev); | |
1967 | ||
eb2a021c FR |
1968 | flush_scheduled_work(); |
1969 | ||
1da177e4 | 1970 | unregister_netdev(dev); |
fbac58fc | 1971 | rtl_disable_msi(pdev, tp); |
1da177e4 LT |
1972 | rtl8169_release_board(pdev, dev, tp->mmio_addr); |
1973 | pci_set_drvdata(pdev, NULL); | |
1974 | } | |
1975 | ||
1da177e4 LT |
1976 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, |
1977 | struct net_device *dev) | |
1978 | { | |
1979 | unsigned int mtu = dev->mtu; | |
1980 | ||
1981 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
1982 | } | |
1983 | ||
1984 | static int rtl8169_open(struct net_device *dev) | |
1985 | { | |
1986 | struct rtl8169_private *tp = netdev_priv(dev); | |
1987 | struct pci_dev *pdev = tp->pci_dev; | |
99f252b0 | 1988 | int retval = -ENOMEM; |
1da177e4 | 1989 | |
1da177e4 | 1990 | |
99f252b0 | 1991 | rtl8169_set_rxbufsize(tp, dev); |
1da177e4 LT |
1992 | |
1993 | /* | |
1994 | * Rx and Tx desscriptors needs 256 bytes alignment. | |
1995 | * pci_alloc_consistent provides more. | |
1996 | */ | |
1997 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, | |
1998 | &tp->TxPhyAddr); | |
1999 | if (!tp->TxDescArray) | |
99f252b0 | 2000 | goto out; |
1da177e4 LT |
2001 | |
2002 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, | |
2003 | &tp->RxPhyAddr); | |
2004 | if (!tp->RxDescArray) | |
99f252b0 | 2005 | goto err_free_tx_0; |
1da177e4 LT |
2006 | |
2007 | retval = rtl8169_init_ring(dev); | |
2008 | if (retval < 0) | |
99f252b0 | 2009 | goto err_free_rx_1; |
1da177e4 | 2010 | |
c4028958 | 2011 | INIT_DELAYED_WORK(&tp->task, NULL); |
1da177e4 | 2012 | |
99f252b0 FR |
2013 | smp_mb(); |
2014 | ||
fbac58fc FR |
2015 | retval = request_irq(dev->irq, rtl8169_interrupt, |
2016 | (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED, | |
99f252b0 FR |
2017 | dev->name, dev); |
2018 | if (retval < 0) | |
2019 | goto err_release_ring_2; | |
2020 | ||
bea3348e | 2021 | napi_enable(&tp->napi); |
bea3348e | 2022 | |
07ce4064 | 2023 | rtl_hw_start(dev); |
1da177e4 LT |
2024 | |
2025 | rtl8169_request_timer(dev); | |
2026 | ||
2027 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); | |
2028 | out: | |
2029 | return retval; | |
2030 | ||
99f252b0 FR |
2031 | err_release_ring_2: |
2032 | rtl8169_rx_clear(tp); | |
2033 | err_free_rx_1: | |
1da177e4 LT |
2034 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
2035 | tp->RxPhyAddr); | |
99f252b0 | 2036 | err_free_tx_0: |
1da177e4 LT |
2037 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
2038 | tp->TxPhyAddr); | |
1da177e4 LT |
2039 | goto out; |
2040 | } | |
2041 | ||
2042 | static void rtl8169_hw_reset(void __iomem *ioaddr) | |
2043 | { | |
2044 | /* Disable interrupts */ | |
2045 | rtl8169_irq_mask_and_ack(ioaddr); | |
2046 | ||
2047 | /* Reset the chipset */ | |
2048 | RTL_W8(ChipCmd, CmdReset); | |
2049 | ||
2050 | /* PCI commit */ | |
2051 | RTL_R8(ChipCmd); | |
2052 | } | |
2053 | ||
7f796d83 | 2054 | static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) |
9cb427b6 FR |
2055 | { |
2056 | void __iomem *ioaddr = tp->mmio_addr; | |
2057 | u32 cfg = rtl8169_rx_config; | |
2058 | ||
2059 | cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
2060 | RTL_W32(RxConfig, cfg); | |
2061 | ||
2062 | /* Set DMA burst size and Interframe Gap Time */ | |
2063 | RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | | |
2064 | (InterFrameGap << TxInterFrameGapShift)); | |
2065 | } | |
2066 | ||
07ce4064 | 2067 | static void rtl_hw_start(struct net_device *dev) |
1da177e4 LT |
2068 | { |
2069 | struct rtl8169_private *tp = netdev_priv(dev); | |
2070 | void __iomem *ioaddr = tp->mmio_addr; | |
07d3f51f | 2071 | unsigned int i; |
1da177e4 LT |
2072 | |
2073 | /* Soft reset the chip. */ | |
2074 | RTL_W8(ChipCmd, CmdReset); | |
2075 | ||
2076 | /* Check that the chip has finished the reset. */ | |
07d3f51f | 2077 | for (i = 0; i < 100; i++) { |
1da177e4 LT |
2078 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
2079 | break; | |
b518fa8e | 2080 | msleep_interruptible(1); |
1da177e4 LT |
2081 | } |
2082 | ||
07ce4064 FR |
2083 | tp->hw_start(dev); |
2084 | ||
07ce4064 FR |
2085 | netif_start_queue(dev); |
2086 | } | |
2087 | ||
2088 | ||
7f796d83 FR |
2089 | static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp, |
2090 | void __iomem *ioaddr) | |
2091 | { | |
2092 | /* | |
2093 | * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh | |
2094 | * register to be written before TxDescAddrLow to work. | |
2095 | * Switching from MMIO to I/O access fixes the issue as well. | |
2096 | */ | |
2097 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32); | |
2098 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK); | |
2099 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32); | |
2100 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK); | |
2101 | } | |
2102 | ||
2103 | static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) | |
2104 | { | |
2105 | u16 cmd; | |
2106 | ||
2107 | cmd = RTL_R16(CPlusCmd); | |
2108 | RTL_W16(CPlusCmd, cmd); | |
2109 | return cmd; | |
2110 | } | |
2111 | ||
2112 | static void rtl_set_rx_max_size(void __iomem *ioaddr) | |
2113 | { | |
2114 | /* Low hurts. Let's disable the filtering. */ | |
2115 | RTL_W16(RxMaxSize, 16383); | |
2116 | } | |
2117 | ||
6dccd16b FR |
2118 | static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) |
2119 | { | |
2120 | struct { | |
2121 | u32 mac_version; | |
2122 | u32 clk; | |
2123 | u32 val; | |
2124 | } cfg2_info [] = { | |
2125 | { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd | |
2126 | { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff }, | |
2127 | { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe | |
2128 | { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff } | |
2129 | }, *p = cfg2_info; | |
2130 | unsigned int i; | |
2131 | u32 clk; | |
2132 | ||
2133 | clk = RTL_R8(Config2) & PCI_Clock_66MHz; | |
cadf1855 | 2134 | for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) { |
6dccd16b FR |
2135 | if ((p->mac_version == mac_version) && (p->clk == clk)) { |
2136 | RTL_W32(0x7c, p->val); | |
2137 | break; | |
2138 | } | |
2139 | } | |
2140 | } | |
2141 | ||
07ce4064 FR |
2142 | static void rtl_hw_start_8169(struct net_device *dev) |
2143 | { | |
2144 | struct rtl8169_private *tp = netdev_priv(dev); | |
2145 | void __iomem *ioaddr = tp->mmio_addr; | |
2146 | struct pci_dev *pdev = tp->pci_dev; | |
07ce4064 | 2147 | |
9cb427b6 FR |
2148 | if (tp->mac_version == RTL_GIGA_MAC_VER_05) { |
2149 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); | |
2150 | pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); | |
2151 | } | |
2152 | ||
1da177e4 | 2153 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
9cb427b6 FR |
2154 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
2155 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
2156 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
2157 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
2158 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2159 | ||
1da177e4 LT |
2160 | RTL_W8(EarlyTxThres, EarlyTxThld); |
2161 | ||
7f796d83 | 2162 | rtl_set_rx_max_size(ioaddr); |
1da177e4 | 2163 | |
c946b304 FR |
2164 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
2165 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
2166 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
2167 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
2168 | rtl_set_rx_tx_config_registers(tp); | |
1da177e4 | 2169 | |
7f796d83 | 2170 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; |
1da177e4 | 2171 | |
bcf0bf90 FR |
2172 | if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || |
2173 | (tp->mac_version == RTL_GIGA_MAC_VER_03)) { | |
06fa7358 | 2174 | dprintk("Set MAC Reg C+CR Offset 0xE0. " |
1da177e4 | 2175 | "Bit-3 and bit-14 MUST be 1\n"); |
bcf0bf90 | 2176 | tp->cp_cmd |= (1 << 14); |
1da177e4 LT |
2177 | } |
2178 | ||
bcf0bf90 FR |
2179 | RTL_W16(CPlusCmd, tp->cp_cmd); |
2180 | ||
6dccd16b FR |
2181 | rtl8169_set_magic_reg(ioaddr, tp->mac_version); |
2182 | ||
1da177e4 LT |
2183 | /* |
2184 | * Undocumented corner. Supposedly: | |
2185 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets | |
2186 | */ | |
2187 | RTL_W16(IntrMitigate, 0x0000); | |
2188 | ||
7f796d83 | 2189 | rtl_set_rx_tx_desc_registers(tp, ioaddr); |
9cb427b6 | 2190 | |
c946b304 FR |
2191 | if ((tp->mac_version != RTL_GIGA_MAC_VER_01) && |
2192 | (tp->mac_version != RTL_GIGA_MAC_VER_02) && | |
2193 | (tp->mac_version != RTL_GIGA_MAC_VER_03) && | |
2194 | (tp->mac_version != RTL_GIGA_MAC_VER_04)) { | |
2195 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2196 | rtl_set_rx_tx_config_registers(tp); | |
2197 | } | |
2198 | ||
1da177e4 | 2199 | RTL_W8(Cfg9346, Cfg9346_Lock); |
b518fa8e FR |
2200 | |
2201 | /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ | |
2202 | RTL_R8(IntrMask); | |
1da177e4 LT |
2203 | |
2204 | RTL_W32(RxMissed, 0); | |
2205 | ||
07ce4064 | 2206 | rtl_set_rx_mode(dev); |
1da177e4 LT |
2207 | |
2208 | /* no early-rx interrupts */ | |
2209 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); | |
6dccd16b FR |
2210 | |
2211 | /* Enable all known interrupts by setting the interrupt mask. */ | |
0e485150 | 2212 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 2213 | } |
1da177e4 | 2214 | |
9c14ceaf | 2215 | static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force) |
458a9f61 | 2216 | { |
9c14ceaf FR |
2217 | struct net_device *dev = pci_get_drvdata(pdev); |
2218 | struct rtl8169_private *tp = netdev_priv(dev); | |
2219 | int cap = tp->pcie_cap; | |
2220 | ||
2221 | if (cap) { | |
2222 | u16 ctl; | |
458a9f61 | 2223 | |
9c14ceaf FR |
2224 | pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl); |
2225 | ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force; | |
2226 | pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl); | |
2227 | } | |
458a9f61 FR |
2228 | } |
2229 | ||
dacf8154 FR |
2230 | static void rtl_csi_access_enable(void __iomem *ioaddr) |
2231 | { | |
2232 | u32 csi; | |
2233 | ||
2234 | csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff; | |
2235 | rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000); | |
2236 | } | |
2237 | ||
2238 | struct ephy_info { | |
2239 | unsigned int offset; | |
2240 | u16 mask; | |
2241 | u16 bits; | |
2242 | }; | |
2243 | ||
2244 | static void rtl_ephy_init(void __iomem *ioaddr, struct ephy_info *e, int len) | |
2245 | { | |
2246 | u16 w; | |
2247 | ||
2248 | while (len-- > 0) { | |
2249 | w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits; | |
2250 | rtl_ephy_write(ioaddr, e->offset, w); | |
2251 | e++; | |
2252 | } | |
2253 | } | |
2254 | ||
07ce4064 FR |
2255 | static void rtl_hw_start_8168(struct net_device *dev) |
2256 | { | |
2dd99530 FR |
2257 | struct rtl8169_private *tp = netdev_priv(dev); |
2258 | void __iomem *ioaddr = tp->mmio_addr; | |
0e485150 | 2259 | struct pci_dev *pdev = tp->pci_dev; |
2dd99530 FR |
2260 | |
2261 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
2262 | ||
2263 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
2264 | ||
2265 | rtl_set_rx_max_size(ioaddr); | |
2266 | ||
0e485150 FR |
2267 | rtl_set_rx_tx_config_registers(tp); |
2268 | ||
2269 | tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; | |
2dd99530 FR |
2270 | |
2271 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2272 | ||
9c14ceaf | 2273 | rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
2dd99530 | 2274 | |
0e485150 | 2275 | RTL_W16(IntrMitigate, 0x5151); |
2dd99530 | 2276 | |
0e485150 FR |
2277 | /* Work around for RxFIFO overflow. */ |
2278 | if (tp->mac_version == RTL_GIGA_MAC_VER_11) { | |
2279 | tp->intr_event |= RxFIFOOver | PCSTimeout; | |
2280 | tp->intr_event &= ~RxOverflow; | |
2281 | } | |
2282 | ||
2283 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2dd99530 FR |
2284 | |
2285 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2286 | ||
2287 | RTL_R8(IntrMask); | |
2288 | ||
2dd99530 FR |
2289 | rtl_set_rx_mode(dev); |
2290 | ||
0e485150 FR |
2291 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2292 | ||
2dd99530 | 2293 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); |
6dccd16b | 2294 | |
0e485150 | 2295 | RTL_W16(IntrMask, tp->intr_event); |
07ce4064 | 2296 | } |
1da177e4 | 2297 | |
2857ffb7 FR |
2298 | #define R810X_CPCMD_QUIRK_MASK (\ |
2299 | EnableBist | \ | |
2300 | Mac_dbgo_oe | \ | |
2301 | Force_half_dup | \ | |
2302 | Force_half_dup | \ | |
2303 | Force_txflow_en | \ | |
2304 | Cxpl_dbg_sel | \ | |
2305 | ASF | \ | |
2306 | PktCntrDisable | \ | |
2307 | PCIDAC | \ | |
2308 | PCIMulRW) | |
2309 | ||
2310 | static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev) | |
2311 | { | |
2312 | static struct ephy_info e_info_8102e_1[] = { | |
2313 | { 0x01, 0, 0x6e65 }, | |
2314 | { 0x02, 0, 0x091f }, | |
2315 | { 0x03, 0, 0xc2f9 }, | |
2316 | { 0x06, 0, 0xafb5 }, | |
2317 | { 0x07, 0, 0x0e00 }, | |
2318 | { 0x19, 0, 0xec80 }, | |
2319 | { 0x01, 0, 0x2e65 }, | |
2320 | { 0x01, 0, 0x6e65 } | |
2321 | }; | |
2322 | u8 cfg1; | |
2323 | ||
2324 | rtl_csi_access_enable(ioaddr); | |
2325 | ||
2326 | RTL_W8(DBG_REG, FIX_NAK_1); | |
2327 | ||
2328 | rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); | |
2329 | ||
2330 | RTL_W8(Config1, | |
2331 | LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable); | |
2332 | RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); | |
2333 | ||
2334 | cfg1 = RTL_R8(Config1); | |
2335 | if ((cfg1 & LEDS0) && (cfg1 & LEDS1)) | |
2336 | RTL_W8(Config1, cfg1 & ~LEDS0); | |
2337 | ||
2338 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); | |
2339 | ||
2340 | rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1)); | |
2341 | } | |
2342 | ||
2343 | static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev) | |
2344 | { | |
2345 | rtl_csi_access_enable(ioaddr); | |
2346 | ||
2347 | rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); | |
2348 | ||
2349 | RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable); | |
2350 | RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); | |
2351 | ||
2352 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); | |
2353 | } | |
2354 | ||
2355 | static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev) | |
2356 | { | |
2357 | rtl_hw_start_8102e_2(ioaddr, pdev); | |
2358 | ||
2359 | rtl_ephy_write(ioaddr, 0x03, 0xc2f9); | |
2360 | } | |
2361 | ||
07ce4064 FR |
2362 | static void rtl_hw_start_8101(struct net_device *dev) |
2363 | { | |
cdf1a608 FR |
2364 | struct rtl8169_private *tp = netdev_priv(dev); |
2365 | void __iomem *ioaddr = tp->mmio_addr; | |
2366 | struct pci_dev *pdev = tp->pci_dev; | |
2367 | ||
e3cf0cc0 FR |
2368 | if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || |
2369 | (tp->mac_version == RTL_GIGA_MAC_VER_16)) { | |
9c14ceaf FR |
2370 | int cap = tp->pcie_cap; |
2371 | ||
2372 | if (cap) { | |
2373 | pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, | |
2374 | PCI_EXP_DEVCTL_NOSNOOP_EN); | |
2375 | } | |
cdf1a608 FR |
2376 | } |
2377 | ||
2857ffb7 FR |
2378 | switch (tp->mac_version) { |
2379 | case RTL_GIGA_MAC_VER_07: | |
2380 | rtl_hw_start_8102e_1(ioaddr, pdev); | |
2381 | break; | |
2382 | ||
2383 | case RTL_GIGA_MAC_VER_08: | |
2384 | rtl_hw_start_8102e_3(ioaddr, pdev); | |
2385 | break; | |
2386 | ||
2387 | case RTL_GIGA_MAC_VER_09: | |
2388 | rtl_hw_start_8102e_2(ioaddr, pdev); | |
2389 | break; | |
cdf1a608 FR |
2390 | } |
2391 | ||
2392 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
2393 | ||
2394 | RTL_W8(EarlyTxThres, EarlyTxThld); | |
2395 | ||
2396 | rtl_set_rx_max_size(ioaddr); | |
2397 | ||
2398 | tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; | |
2399 | ||
2400 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2401 | ||
2402 | RTL_W16(IntrMitigate, 0x0000); | |
2403 | ||
2404 | rtl_set_rx_tx_desc_registers(tp, ioaddr); | |
2405 | ||
2406 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
2407 | rtl_set_rx_tx_config_registers(tp); | |
2408 | ||
2409 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
2410 | ||
2411 | RTL_R8(IntrMask); | |
2412 | ||
cdf1a608 FR |
2413 | rtl_set_rx_mode(dev); |
2414 | ||
0e485150 FR |
2415 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
2416 | ||
cdf1a608 | 2417 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000); |
6dccd16b | 2418 | |
0e485150 | 2419 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
2420 | } |
2421 | ||
2422 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) | |
2423 | { | |
2424 | struct rtl8169_private *tp = netdev_priv(dev); | |
2425 | int ret = 0; | |
2426 | ||
2427 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) | |
2428 | return -EINVAL; | |
2429 | ||
2430 | dev->mtu = new_mtu; | |
2431 | ||
2432 | if (!netif_running(dev)) | |
2433 | goto out; | |
2434 | ||
2435 | rtl8169_down(dev); | |
2436 | ||
2437 | rtl8169_set_rxbufsize(tp, dev); | |
2438 | ||
2439 | ret = rtl8169_init_ring(dev); | |
2440 | if (ret < 0) | |
2441 | goto out; | |
2442 | ||
bea3348e | 2443 | napi_enable(&tp->napi); |
1da177e4 | 2444 | |
07ce4064 | 2445 | rtl_hw_start(dev); |
1da177e4 LT |
2446 | |
2447 | rtl8169_request_timer(dev); | |
2448 | ||
2449 | out: | |
2450 | return ret; | |
2451 | } | |
2452 | ||
2453 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) | |
2454 | { | |
95e0918d | 2455 | desc->addr = cpu_to_le64(0x0badbadbadbadbadull); |
1da177e4 LT |
2456 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); |
2457 | } | |
2458 | ||
2459 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, | |
2460 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
2461 | { | |
2462 | struct pci_dev *pdev = tp->pci_dev; | |
2463 | ||
2464 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
2465 | PCI_DMA_FROMDEVICE); | |
2466 | dev_kfree_skb(*sk_buff); | |
2467 | *sk_buff = NULL; | |
2468 | rtl8169_make_unusable_by_asic(desc); | |
2469 | } | |
2470 | ||
2471 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
2472 | { | |
2473 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; | |
2474 | ||
2475 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); | |
2476 | } | |
2477 | ||
2478 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
2479 | u32 rx_buf_sz) | |
2480 | { | |
2481 | desc->addr = cpu_to_le64(mapping); | |
2482 | wmb(); | |
2483 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
2484 | } | |
2485 | ||
15d31758 SH |
2486 | static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev, |
2487 | struct net_device *dev, | |
2488 | struct RxDesc *desc, int rx_buf_sz, | |
2489 | unsigned int align) | |
1da177e4 LT |
2490 | { |
2491 | struct sk_buff *skb; | |
2492 | dma_addr_t mapping; | |
e9f63f30 | 2493 | unsigned int pad; |
1da177e4 | 2494 | |
e9f63f30 FR |
2495 | pad = align ? align : NET_IP_ALIGN; |
2496 | ||
2497 | skb = netdev_alloc_skb(dev, rx_buf_sz + pad); | |
1da177e4 LT |
2498 | if (!skb) |
2499 | goto err_out; | |
2500 | ||
e9f63f30 | 2501 | skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad); |
1da177e4 | 2502 | |
689be439 | 2503 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
1da177e4 LT |
2504 | PCI_DMA_FROMDEVICE); |
2505 | ||
2506 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); | |
1da177e4 | 2507 | out: |
15d31758 | 2508 | return skb; |
1da177e4 LT |
2509 | |
2510 | err_out: | |
1da177e4 LT |
2511 | rtl8169_make_unusable_by_asic(desc); |
2512 | goto out; | |
2513 | } | |
2514 | ||
2515 | static void rtl8169_rx_clear(struct rtl8169_private *tp) | |
2516 | { | |
07d3f51f | 2517 | unsigned int i; |
1da177e4 LT |
2518 | |
2519 | for (i = 0; i < NUM_RX_DESC; i++) { | |
2520 | if (tp->Rx_skbuff[i]) { | |
2521 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, | |
2522 | tp->RxDescArray + i); | |
2523 | } | |
2524 | } | |
2525 | } | |
2526 | ||
2527 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, | |
2528 | u32 start, u32 end) | |
2529 | { | |
2530 | u32 cur; | |
5b0384f4 | 2531 | |
4ae47c2d | 2532 | for (cur = start; end - cur != 0; cur++) { |
15d31758 SH |
2533 | struct sk_buff *skb; |
2534 | unsigned int i = cur % NUM_RX_DESC; | |
1da177e4 | 2535 | |
4ae47c2d FR |
2536 | WARN_ON((s32)(end - cur) < 0); |
2537 | ||
1da177e4 LT |
2538 | if (tp->Rx_skbuff[i]) |
2539 | continue; | |
bcf0bf90 | 2540 | |
15d31758 SH |
2541 | skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev, |
2542 | tp->RxDescArray + i, | |
2543 | tp->rx_buf_sz, tp->align); | |
2544 | if (!skb) | |
1da177e4 | 2545 | break; |
15d31758 SH |
2546 | |
2547 | tp->Rx_skbuff[i] = skb; | |
1da177e4 LT |
2548 | } |
2549 | return cur - start; | |
2550 | } | |
2551 | ||
2552 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) | |
2553 | { | |
2554 | desc->opts1 |= cpu_to_le32(RingEnd); | |
2555 | } | |
2556 | ||
2557 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) | |
2558 | { | |
2559 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
2560 | } | |
2561 | ||
2562 | static int rtl8169_init_ring(struct net_device *dev) | |
2563 | { | |
2564 | struct rtl8169_private *tp = netdev_priv(dev); | |
2565 | ||
2566 | rtl8169_init_ring_indexes(tp); | |
2567 | ||
2568 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); | |
2569 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
2570 | ||
2571 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
2572 | goto err_out; | |
2573 | ||
2574 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); | |
2575 | ||
2576 | return 0; | |
2577 | ||
2578 | err_out: | |
2579 | rtl8169_rx_clear(tp); | |
2580 | return -ENOMEM; | |
2581 | } | |
2582 | ||
2583 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, | |
2584 | struct TxDesc *desc) | |
2585 | { | |
2586 | unsigned int len = tx_skb->len; | |
2587 | ||
2588 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
2589 | desc->opts1 = 0x00; | |
2590 | desc->opts2 = 0x00; | |
2591 | desc->addr = 0x00; | |
2592 | tx_skb->len = 0; | |
2593 | } | |
2594 | ||
2595 | static void rtl8169_tx_clear(struct rtl8169_private *tp) | |
2596 | { | |
2597 | unsigned int i; | |
2598 | ||
2599 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { | |
2600 | unsigned int entry = i % NUM_TX_DESC; | |
2601 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2602 | unsigned int len = tx_skb->len; | |
2603 | ||
2604 | if (len) { | |
2605 | struct sk_buff *skb = tx_skb->skb; | |
2606 | ||
2607 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, | |
2608 | tp->TxDescArray + entry); | |
2609 | if (skb) { | |
2610 | dev_kfree_skb(skb); | |
2611 | tx_skb->skb = NULL; | |
2612 | } | |
cebf8cc7 | 2613 | tp->dev->stats.tx_dropped++; |
1da177e4 LT |
2614 | } |
2615 | } | |
2616 | tp->cur_tx = tp->dirty_tx = 0; | |
2617 | } | |
2618 | ||
c4028958 | 2619 | static void rtl8169_schedule_work(struct net_device *dev, work_func_t task) |
1da177e4 LT |
2620 | { |
2621 | struct rtl8169_private *tp = netdev_priv(dev); | |
2622 | ||
c4028958 | 2623 | PREPARE_DELAYED_WORK(&tp->task, task); |
1da177e4 LT |
2624 | schedule_delayed_work(&tp->task, 4); |
2625 | } | |
2626 | ||
2627 | static void rtl8169_wait_for_quiescence(struct net_device *dev) | |
2628 | { | |
2629 | struct rtl8169_private *tp = netdev_priv(dev); | |
2630 | void __iomem *ioaddr = tp->mmio_addr; | |
2631 | ||
2632 | synchronize_irq(dev->irq); | |
2633 | ||
2634 | /* Wait for any pending NAPI task to complete */ | |
bea3348e | 2635 | napi_disable(&tp->napi); |
1da177e4 LT |
2636 | |
2637 | rtl8169_irq_mask_and_ack(ioaddr); | |
2638 | ||
d1d08d12 DM |
2639 | tp->intr_mask = 0xffff; |
2640 | RTL_W16(IntrMask, tp->intr_event); | |
bea3348e | 2641 | napi_enable(&tp->napi); |
1da177e4 LT |
2642 | } |
2643 | ||
c4028958 | 2644 | static void rtl8169_reinit_task(struct work_struct *work) |
1da177e4 | 2645 | { |
c4028958 DH |
2646 | struct rtl8169_private *tp = |
2647 | container_of(work, struct rtl8169_private, task.work); | |
2648 | struct net_device *dev = tp->dev; | |
1da177e4 LT |
2649 | int ret; |
2650 | ||
eb2a021c FR |
2651 | rtnl_lock(); |
2652 | ||
2653 | if (!netif_running(dev)) | |
2654 | goto out_unlock; | |
2655 | ||
2656 | rtl8169_wait_for_quiescence(dev); | |
2657 | rtl8169_close(dev); | |
1da177e4 LT |
2658 | |
2659 | ret = rtl8169_open(dev); | |
2660 | if (unlikely(ret < 0)) { | |
07d3f51f | 2661 | if (net_ratelimit() && netif_msg_drv(tp)) { |
53edbecd | 2662 | printk(KERN_ERR PFX "%s: reinit failure (status = %d)." |
07d3f51f | 2663 | " Rescheduling.\n", dev->name, ret); |
1da177e4 LT |
2664 | } |
2665 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2666 | } | |
eb2a021c FR |
2667 | |
2668 | out_unlock: | |
2669 | rtnl_unlock(); | |
1da177e4 LT |
2670 | } |
2671 | ||
c4028958 | 2672 | static void rtl8169_reset_task(struct work_struct *work) |
1da177e4 | 2673 | { |
c4028958 DH |
2674 | struct rtl8169_private *tp = |
2675 | container_of(work, struct rtl8169_private, task.work); | |
2676 | struct net_device *dev = tp->dev; | |
1da177e4 | 2677 | |
eb2a021c FR |
2678 | rtnl_lock(); |
2679 | ||
1da177e4 | 2680 | if (!netif_running(dev)) |
eb2a021c | 2681 | goto out_unlock; |
1da177e4 LT |
2682 | |
2683 | rtl8169_wait_for_quiescence(dev); | |
2684 | ||
bea3348e | 2685 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0); |
1da177e4 LT |
2686 | rtl8169_tx_clear(tp); |
2687 | ||
2688 | if (tp->dirty_rx == tp->cur_rx) { | |
2689 | rtl8169_init_ring_indexes(tp); | |
07ce4064 | 2690 | rtl_hw_start(dev); |
1da177e4 | 2691 | netif_wake_queue(dev); |
cebf8cc7 | 2692 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); |
1da177e4 | 2693 | } else { |
07d3f51f | 2694 | if (net_ratelimit() && netif_msg_intr(tp)) { |
53edbecd | 2695 | printk(KERN_EMERG PFX "%s: Rx buffers shortage\n", |
07d3f51f | 2696 | dev->name); |
1da177e4 LT |
2697 | } |
2698 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2699 | } | |
eb2a021c FR |
2700 | |
2701 | out_unlock: | |
2702 | rtnl_unlock(); | |
1da177e4 LT |
2703 | } |
2704 | ||
2705 | static void rtl8169_tx_timeout(struct net_device *dev) | |
2706 | { | |
2707 | struct rtl8169_private *tp = netdev_priv(dev); | |
2708 | ||
2709 | rtl8169_hw_reset(tp->mmio_addr); | |
2710 | ||
2711 | /* Let's wait a bit while any (async) irq lands on */ | |
2712 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2713 | } | |
2714 | ||
2715 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, | |
2716 | u32 opts1) | |
2717 | { | |
2718 | struct skb_shared_info *info = skb_shinfo(skb); | |
2719 | unsigned int cur_frag, entry; | |
a6343afb | 2720 | struct TxDesc * uninitialized_var(txd); |
1da177e4 LT |
2721 | |
2722 | entry = tp->cur_tx; | |
2723 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { | |
2724 | skb_frag_t *frag = info->frags + cur_frag; | |
2725 | dma_addr_t mapping; | |
2726 | u32 status, len; | |
2727 | void *addr; | |
2728 | ||
2729 | entry = (entry + 1) % NUM_TX_DESC; | |
2730 | ||
2731 | txd = tp->TxDescArray + entry; | |
2732 | len = frag->size; | |
2733 | addr = ((void *) page_address(frag->page)) + frag->page_offset; | |
2734 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); | |
2735 | ||
2736 | /* anti gcc 2.95.3 bugware (sic) */ | |
2737 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2738 | ||
2739 | txd->opts1 = cpu_to_le32(status); | |
2740 | txd->addr = cpu_to_le64(mapping); | |
2741 | ||
2742 | tp->tx_skb[entry].len = len; | |
2743 | } | |
2744 | ||
2745 | if (cur_frag) { | |
2746 | tp->tx_skb[entry].skb = skb; | |
2747 | txd->opts1 |= cpu_to_le32(LastFrag); | |
2748 | } | |
2749 | ||
2750 | return cur_frag; | |
2751 | } | |
2752 | ||
2753 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) | |
2754 | { | |
2755 | if (dev->features & NETIF_F_TSO) { | |
7967168c | 2756 | u32 mss = skb_shinfo(skb)->gso_size; |
1da177e4 LT |
2757 | |
2758 | if (mss) | |
2759 | return LargeSend | ((mss & MSSMask) << MSSShift); | |
2760 | } | |
84fa7933 | 2761 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
eddc9ec5 | 2762 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
2763 | |
2764 | if (ip->protocol == IPPROTO_TCP) | |
2765 | return IPCS | TCPCS; | |
2766 | else if (ip->protocol == IPPROTO_UDP) | |
2767 | return IPCS | UDPCS; | |
2768 | WARN_ON(1); /* we need a WARN() */ | |
2769 | } | |
2770 | return 0; | |
2771 | } | |
2772 | ||
2773 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2774 | { | |
2775 | struct rtl8169_private *tp = netdev_priv(dev); | |
2776 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; | |
2777 | struct TxDesc *txd = tp->TxDescArray + entry; | |
2778 | void __iomem *ioaddr = tp->mmio_addr; | |
2779 | dma_addr_t mapping; | |
2780 | u32 status, len; | |
2781 | u32 opts1; | |
188f4af0 | 2782 | int ret = NETDEV_TX_OK; |
5b0384f4 | 2783 | |
1da177e4 | 2784 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { |
b57b7e5a SH |
2785 | if (netif_msg_drv(tp)) { |
2786 | printk(KERN_ERR | |
2787 | "%s: BUG! Tx Ring full when queue awake!\n", | |
2788 | dev->name); | |
2789 | } | |
1da177e4 LT |
2790 | goto err_stop; |
2791 | } | |
2792 | ||
2793 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) | |
2794 | goto err_stop; | |
2795 | ||
2796 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); | |
2797 | ||
2798 | frags = rtl8169_xmit_frags(tp, skb, opts1); | |
2799 | if (frags) { | |
2800 | len = skb_headlen(skb); | |
2801 | opts1 |= FirstFrag; | |
2802 | } else { | |
2803 | len = skb->len; | |
2804 | ||
2805 | if (unlikely(len < ETH_ZLEN)) { | |
5b057c6b | 2806 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
2807 | goto err_update_stats; |
2808 | len = ETH_ZLEN; | |
2809 | } | |
2810 | ||
2811 | opts1 |= FirstFrag | LastFrag; | |
2812 | tp->tx_skb[entry].skb = skb; | |
2813 | } | |
2814 | ||
2815 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
2816 | ||
2817 | tp->tx_skb[entry].len = len; | |
2818 | txd->addr = cpu_to_le64(mapping); | |
2819 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); | |
2820 | ||
2821 | wmb(); | |
2822 | ||
2823 | /* anti gcc 2.95.3 bugware (sic) */ | |
2824 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2825 | txd->opts1 = cpu_to_le32(status); | |
2826 | ||
2827 | dev->trans_start = jiffies; | |
2828 | ||
2829 | tp->cur_tx += frags + 1; | |
2830 | ||
2831 | smp_wmb(); | |
2832 | ||
275391a4 | 2833 | RTL_W8(TxPoll, NPQ); /* set polling bit */ |
1da177e4 LT |
2834 | |
2835 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { | |
2836 | netif_stop_queue(dev); | |
2837 | smp_rmb(); | |
2838 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) | |
2839 | netif_wake_queue(dev); | |
2840 | } | |
2841 | ||
2842 | out: | |
2843 | return ret; | |
2844 | ||
2845 | err_stop: | |
2846 | netif_stop_queue(dev); | |
188f4af0 | 2847 | ret = NETDEV_TX_BUSY; |
1da177e4 | 2848 | err_update_stats: |
cebf8cc7 | 2849 | dev->stats.tx_dropped++; |
1da177e4 LT |
2850 | goto out; |
2851 | } | |
2852 | ||
2853 | static void rtl8169_pcierr_interrupt(struct net_device *dev) | |
2854 | { | |
2855 | struct rtl8169_private *tp = netdev_priv(dev); | |
2856 | struct pci_dev *pdev = tp->pci_dev; | |
2857 | void __iomem *ioaddr = tp->mmio_addr; | |
2858 | u16 pci_status, pci_cmd; | |
2859 | ||
2860 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); | |
2861 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
2862 | ||
b57b7e5a SH |
2863 | if (netif_msg_intr(tp)) { |
2864 | printk(KERN_ERR | |
2865 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", | |
2866 | dev->name, pci_cmd, pci_status); | |
2867 | } | |
1da177e4 LT |
2868 | |
2869 | /* | |
2870 | * The recovery sequence below admits a very elaborated explanation: | |
2871 | * - it seems to work; | |
d03902b8 FR |
2872 | * - I did not see what else could be done; |
2873 | * - it makes iop3xx happy. | |
1da177e4 LT |
2874 | * |
2875 | * Feel free to adjust to your needs. | |
2876 | */ | |
a27993f3 | 2877 | if (pdev->broken_parity_status) |
d03902b8 FR |
2878 | pci_cmd &= ~PCI_COMMAND_PARITY; |
2879 | else | |
2880 | pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; | |
2881 | ||
2882 | pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); | |
1da177e4 LT |
2883 | |
2884 | pci_write_config_word(pdev, PCI_STATUS, | |
2885 | pci_status & (PCI_STATUS_DETECTED_PARITY | | |
2886 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | | |
2887 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); | |
2888 | ||
2889 | /* The infamous DAC f*ckup only happens at boot time */ | |
2890 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { | |
b57b7e5a SH |
2891 | if (netif_msg_intr(tp)) |
2892 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); | |
1da177e4 LT |
2893 | tp->cp_cmd &= ~PCIDAC; |
2894 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2895 | dev->features &= ~NETIF_F_HIGHDMA; | |
1da177e4 LT |
2896 | } |
2897 | ||
2898 | rtl8169_hw_reset(ioaddr); | |
d03902b8 FR |
2899 | |
2900 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
1da177e4 LT |
2901 | } |
2902 | ||
07d3f51f FR |
2903 | static void rtl8169_tx_interrupt(struct net_device *dev, |
2904 | struct rtl8169_private *tp, | |
2905 | void __iomem *ioaddr) | |
1da177e4 LT |
2906 | { |
2907 | unsigned int dirty_tx, tx_left; | |
2908 | ||
1da177e4 LT |
2909 | dirty_tx = tp->dirty_tx; |
2910 | smp_rmb(); | |
2911 | tx_left = tp->cur_tx - dirty_tx; | |
2912 | ||
2913 | while (tx_left > 0) { | |
2914 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
2915 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2916 | u32 len = tx_skb->len; | |
2917 | u32 status; | |
2918 | ||
2919 | rmb(); | |
2920 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); | |
2921 | if (status & DescOwn) | |
2922 | break; | |
2923 | ||
cebf8cc7 FR |
2924 | dev->stats.tx_bytes += len; |
2925 | dev->stats.tx_packets++; | |
1da177e4 LT |
2926 | |
2927 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); | |
2928 | ||
2929 | if (status & LastFrag) { | |
2930 | dev_kfree_skb_irq(tx_skb->skb); | |
2931 | tx_skb->skb = NULL; | |
2932 | } | |
2933 | dirty_tx++; | |
2934 | tx_left--; | |
2935 | } | |
2936 | ||
2937 | if (tp->dirty_tx != dirty_tx) { | |
2938 | tp->dirty_tx = dirty_tx; | |
2939 | smp_wmb(); | |
2940 | if (netif_queue_stopped(dev) && | |
2941 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { | |
2942 | netif_wake_queue(dev); | |
2943 | } | |
d78ae2dc FR |
2944 | /* |
2945 | * 8168 hack: TxPoll requests are lost when the Tx packets are | |
2946 | * too close. Let's kick an extra TxPoll request when a burst | |
2947 | * of start_xmit activity is detected (if it is not detected, | |
2948 | * it is slow enough). -- FR | |
2949 | */ | |
2950 | smp_rmb(); | |
2951 | if (tp->cur_tx != dirty_tx) | |
2952 | RTL_W8(TxPoll, NPQ); | |
1da177e4 LT |
2953 | } |
2954 | } | |
2955 | ||
126fa4b9 FR |
2956 | static inline int rtl8169_fragmented_frame(u32 status) |
2957 | { | |
2958 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); | |
2959 | } | |
2960 | ||
1da177e4 LT |
2961 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
2962 | { | |
2963 | u32 opts1 = le32_to_cpu(desc->opts1); | |
2964 | u32 status = opts1 & RxProtoMask; | |
2965 | ||
2966 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || | |
2967 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || | |
2968 | ((status == RxProtoIP) && !(opts1 & IPFail))) | |
2969 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2970 | else | |
2971 | skb->ip_summed = CHECKSUM_NONE; | |
2972 | } | |
2973 | ||
07d3f51f FR |
2974 | static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff, |
2975 | struct rtl8169_private *tp, int pkt_size, | |
2976 | dma_addr_t addr) | |
1da177e4 | 2977 | { |
b449655f SH |
2978 | struct sk_buff *skb; |
2979 | bool done = false; | |
1da177e4 | 2980 | |
b449655f SH |
2981 | if (pkt_size >= rx_copybreak) |
2982 | goto out; | |
1da177e4 | 2983 | |
07d3f51f | 2984 | skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN); |
b449655f SH |
2985 | if (!skb) |
2986 | goto out; | |
2987 | ||
07d3f51f FR |
2988 | pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size, |
2989 | PCI_DMA_FROMDEVICE); | |
86402234 | 2990 | skb_reserve(skb, NET_IP_ALIGN); |
b449655f SH |
2991 | skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size); |
2992 | *sk_buff = skb; | |
2993 | done = true; | |
2994 | out: | |
2995 | return done; | |
1da177e4 LT |
2996 | } |
2997 | ||
07d3f51f FR |
2998 | static int rtl8169_rx_interrupt(struct net_device *dev, |
2999 | struct rtl8169_private *tp, | |
bea3348e | 3000 | void __iomem *ioaddr, u32 budget) |
1da177e4 LT |
3001 | { |
3002 | unsigned int cur_rx, rx_left; | |
3003 | unsigned int delta, count; | |
3004 | ||
1da177e4 LT |
3005 | cur_rx = tp->cur_rx; |
3006 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
865c652d | 3007 | rx_left = min(rx_left, budget); |
1da177e4 | 3008 | |
4dcb7d33 | 3009 | for (; rx_left > 0; rx_left--, cur_rx++) { |
1da177e4 | 3010 | unsigned int entry = cur_rx % NUM_RX_DESC; |
126fa4b9 | 3011 | struct RxDesc *desc = tp->RxDescArray + entry; |
1da177e4 LT |
3012 | u32 status; |
3013 | ||
3014 | rmb(); | |
126fa4b9 | 3015 | status = le32_to_cpu(desc->opts1); |
1da177e4 LT |
3016 | |
3017 | if (status & DescOwn) | |
3018 | break; | |
4dcb7d33 | 3019 | if (unlikely(status & RxRES)) { |
b57b7e5a SH |
3020 | if (netif_msg_rx_err(tp)) { |
3021 | printk(KERN_INFO | |
3022 | "%s: Rx ERROR. status = %08x\n", | |
3023 | dev->name, status); | |
3024 | } | |
cebf8cc7 | 3025 | dev->stats.rx_errors++; |
1da177e4 | 3026 | if (status & (RxRWT | RxRUNT)) |
cebf8cc7 | 3027 | dev->stats.rx_length_errors++; |
1da177e4 | 3028 | if (status & RxCRC) |
cebf8cc7 | 3029 | dev->stats.rx_crc_errors++; |
9dccf611 FR |
3030 | if (status & RxFOVF) { |
3031 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
cebf8cc7 | 3032 | dev->stats.rx_fifo_errors++; |
9dccf611 | 3033 | } |
126fa4b9 | 3034 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
1da177e4 | 3035 | } else { |
1da177e4 | 3036 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
b449655f | 3037 | dma_addr_t addr = le64_to_cpu(desc->addr); |
1da177e4 | 3038 | int pkt_size = (status & 0x00001FFF) - 4; |
b449655f | 3039 | struct pci_dev *pdev = tp->pci_dev; |
1da177e4 | 3040 | |
126fa4b9 FR |
3041 | /* |
3042 | * The driver does not support incoming fragmented | |
3043 | * frames. They are seen as a symptom of over-mtu | |
3044 | * sized frames. | |
3045 | */ | |
3046 | if (unlikely(rtl8169_fragmented_frame(status))) { | |
cebf8cc7 FR |
3047 | dev->stats.rx_dropped++; |
3048 | dev->stats.rx_length_errors++; | |
126fa4b9 | 3049 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
4dcb7d33 | 3050 | continue; |
126fa4b9 FR |
3051 | } |
3052 | ||
1da177e4 | 3053 | rtl8169_rx_csum(skb, desc); |
bcf0bf90 | 3054 | |
07d3f51f | 3055 | if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) { |
b449655f SH |
3056 | pci_dma_sync_single_for_device(pdev, addr, |
3057 | pkt_size, PCI_DMA_FROMDEVICE); | |
3058 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
3059 | } else { | |
a866bbf6 | 3060 | pci_unmap_single(pdev, addr, tp->rx_buf_sz, |
b449655f | 3061 | PCI_DMA_FROMDEVICE); |
1da177e4 LT |
3062 | tp->Rx_skbuff[entry] = NULL; |
3063 | } | |
3064 | ||
1da177e4 LT |
3065 | skb_put(skb, pkt_size); |
3066 | skb->protocol = eth_type_trans(skb, dev); | |
3067 | ||
3068 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) | |
865c652d | 3069 | netif_receive_skb(skb); |
1da177e4 LT |
3070 | |
3071 | dev->last_rx = jiffies; | |
cebf8cc7 FR |
3072 | dev->stats.rx_bytes += pkt_size; |
3073 | dev->stats.rx_packets++; | |
1da177e4 | 3074 | } |
6dccd16b FR |
3075 | |
3076 | /* Work around for AMD plateform. */ | |
95e0918d | 3077 | if ((desc->opts2 & cpu_to_le32(0xfffe000)) && |
6dccd16b FR |
3078 | (tp->mac_version == RTL_GIGA_MAC_VER_05)) { |
3079 | desc->opts2 = 0; | |
3080 | cur_rx++; | |
3081 | } | |
1da177e4 LT |
3082 | } |
3083 | ||
3084 | count = cur_rx - tp->cur_rx; | |
3085 | tp->cur_rx = cur_rx; | |
3086 | ||
3087 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
b57b7e5a | 3088 | if (!delta && count && netif_msg_intr(tp)) |
1da177e4 LT |
3089 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
3090 | tp->dirty_rx += delta; | |
3091 | ||
3092 | /* | |
3093 | * FIXME: until there is periodic timer to try and refill the ring, | |
3094 | * a temporary shortage may definitely kill the Rx process. | |
3095 | * - disable the asic to try and avoid an overflow and kick it again | |
3096 | * after refill ? | |
3097 | * - how do others driver handle this condition (Uh oh...). | |
3098 | */ | |
b57b7e5a | 3099 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
1da177e4 LT |
3100 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
3101 | ||
3102 | return count; | |
3103 | } | |
3104 | ||
07d3f51f | 3105 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance) |
1da177e4 | 3106 | { |
07d3f51f | 3107 | struct net_device *dev = dev_instance; |
1da177e4 | 3108 | struct rtl8169_private *tp = netdev_priv(dev); |
1da177e4 | 3109 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 | 3110 | int handled = 0; |
865c652d | 3111 | int status; |
1da177e4 | 3112 | |
865c652d | 3113 | status = RTL_R16(IntrStatus); |
1da177e4 | 3114 | |
865c652d FR |
3115 | /* hotplug/major error/no more work/shared irq */ |
3116 | if ((status == 0xffff) || !status) | |
3117 | goto out; | |
1da177e4 | 3118 | |
865c652d | 3119 | handled = 1; |
1da177e4 | 3120 | |
865c652d FR |
3121 | if (unlikely(!netif_running(dev))) { |
3122 | rtl8169_asic_down(ioaddr); | |
3123 | goto out; | |
3124 | } | |
1da177e4 | 3125 | |
865c652d FR |
3126 | status &= tp->intr_mask; |
3127 | RTL_W16(IntrStatus, | |
3128 | (status & RxFIFOOver) ? (status | RxOverflow) : status); | |
1da177e4 | 3129 | |
865c652d FR |
3130 | if (!(status & tp->intr_event)) |
3131 | goto out; | |
0e485150 | 3132 | |
865c652d FR |
3133 | /* Work around for rx fifo overflow */ |
3134 | if (unlikely(status & RxFIFOOver) && | |
3135 | (tp->mac_version == RTL_GIGA_MAC_VER_11)) { | |
3136 | netif_stop_queue(dev); | |
3137 | rtl8169_tx_timeout(dev); | |
3138 | goto out; | |
3139 | } | |
1da177e4 | 3140 | |
865c652d FR |
3141 | if (unlikely(status & SYSErr)) { |
3142 | rtl8169_pcierr_interrupt(dev); | |
3143 | goto out; | |
3144 | } | |
1da177e4 | 3145 | |
865c652d FR |
3146 | if (status & LinkChg) |
3147 | rtl8169_check_link_status(dev, tp, ioaddr); | |
1da177e4 | 3148 | |
865c652d FR |
3149 | if (status & tp->napi_event) { |
3150 | RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event); | |
3151 | tp->intr_mask = ~tp->napi_event; | |
313b0305 | 3152 | |
bea3348e SH |
3153 | if (likely(netif_rx_schedule_prep(dev, &tp->napi))) |
3154 | __netif_rx_schedule(dev, &tp->napi); | |
865c652d FR |
3155 | else if (netif_msg_intr(tp)) { |
3156 | printk(KERN_INFO "%s: interrupt %04x in poll\n", | |
3157 | dev->name, status); | |
b57b7e5a | 3158 | } |
1da177e4 LT |
3159 | } |
3160 | out: | |
3161 | return IRQ_RETVAL(handled); | |
3162 | } | |
3163 | ||
bea3348e | 3164 | static int rtl8169_poll(struct napi_struct *napi, int budget) |
1da177e4 | 3165 | { |
bea3348e SH |
3166 | struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi); |
3167 | struct net_device *dev = tp->dev; | |
1da177e4 | 3168 | void __iomem *ioaddr = tp->mmio_addr; |
bea3348e | 3169 | int work_done; |
1da177e4 | 3170 | |
bea3348e | 3171 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget); |
1da177e4 LT |
3172 | rtl8169_tx_interrupt(dev, tp, ioaddr); |
3173 | ||
bea3348e SH |
3174 | if (work_done < budget) { |
3175 | netif_rx_complete(dev, napi); | |
1da177e4 LT |
3176 | tp->intr_mask = 0xffff; |
3177 | /* | |
3178 | * 20040426: the barrier is not strictly required but the | |
3179 | * behavior of the irq handler could be less predictable | |
3180 | * without it. Btw, the lack of flush for the posted pci | |
3181 | * write is safe - FR | |
3182 | */ | |
3183 | smp_wmb(); | |
0e485150 | 3184 | RTL_W16(IntrMask, tp->intr_event); |
1da177e4 LT |
3185 | } |
3186 | ||
bea3348e | 3187 | return work_done; |
1da177e4 | 3188 | } |
1da177e4 | 3189 | |
523a6094 FR |
3190 | static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr) |
3191 | { | |
3192 | struct rtl8169_private *tp = netdev_priv(dev); | |
3193 | ||
3194 | if (tp->mac_version > RTL_GIGA_MAC_VER_06) | |
3195 | return; | |
3196 | ||
3197 | dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff); | |
3198 | RTL_W32(RxMissed, 0); | |
3199 | } | |
3200 | ||
1da177e4 LT |
3201 | static void rtl8169_down(struct net_device *dev) |
3202 | { | |
3203 | struct rtl8169_private *tp = netdev_priv(dev); | |
3204 | void __iomem *ioaddr = tp->mmio_addr; | |
733b736c | 3205 | unsigned int intrmask; |
1da177e4 LT |
3206 | |
3207 | rtl8169_delete_timer(dev); | |
3208 | ||
3209 | netif_stop_queue(dev); | |
3210 | ||
93dd79e8 | 3211 | napi_disable(&tp->napi); |
93dd79e8 | 3212 | |
1da177e4 LT |
3213 | core_down: |
3214 | spin_lock_irq(&tp->lock); | |
3215 | ||
3216 | rtl8169_asic_down(ioaddr); | |
3217 | ||
523a6094 | 3218 | rtl8169_rx_missed(dev, ioaddr); |
1da177e4 LT |
3219 | |
3220 | spin_unlock_irq(&tp->lock); | |
3221 | ||
3222 | synchronize_irq(dev->irq); | |
3223 | ||
1da177e4 | 3224 | /* Give a racing hard_start_xmit a few cycles to complete. */ |
fbd568a3 | 3225 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
1da177e4 LT |
3226 | |
3227 | /* | |
3228 | * And now for the 50k$ question: are IRQ disabled or not ? | |
3229 | * | |
3230 | * Two paths lead here: | |
3231 | * 1) dev->close | |
3232 | * -> netif_running() is available to sync the current code and the | |
3233 | * IRQ handler. See rtl8169_interrupt for details. | |
3234 | * 2) dev->change_mtu | |
3235 | * -> rtl8169_poll can not be issued again and re-enable the | |
3236 | * interruptions. Let's simply issue the IRQ down sequence again. | |
733b736c AP |
3237 | * |
3238 | * No loop if hotpluged or major error (0xffff). | |
1da177e4 | 3239 | */ |
733b736c AP |
3240 | intrmask = RTL_R16(IntrMask); |
3241 | if (intrmask && (intrmask != 0xffff)) | |
1da177e4 LT |
3242 | goto core_down; |
3243 | ||
3244 | rtl8169_tx_clear(tp); | |
3245 | ||
3246 | rtl8169_rx_clear(tp); | |
3247 | } | |
3248 | ||
3249 | static int rtl8169_close(struct net_device *dev) | |
3250 | { | |
3251 | struct rtl8169_private *tp = netdev_priv(dev); | |
3252 | struct pci_dev *pdev = tp->pci_dev; | |
3253 | ||
3254 | rtl8169_down(dev); | |
3255 | ||
3256 | free_irq(dev->irq, dev); | |
3257 | ||
1da177e4 LT |
3258 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
3259 | tp->RxPhyAddr); | |
3260 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
3261 | tp->TxPhyAddr); | |
3262 | tp->TxDescArray = NULL; | |
3263 | tp->RxDescArray = NULL; | |
3264 | ||
3265 | return 0; | |
3266 | } | |
3267 | ||
07ce4064 | 3268 | static void rtl_set_rx_mode(struct net_device *dev) |
1da177e4 LT |
3269 | { |
3270 | struct rtl8169_private *tp = netdev_priv(dev); | |
3271 | void __iomem *ioaddr = tp->mmio_addr; | |
3272 | unsigned long flags; | |
3273 | u32 mc_filter[2]; /* Multicast hash filter */ | |
07d3f51f | 3274 | int rx_mode; |
1da177e4 LT |
3275 | u32 tmp = 0; |
3276 | ||
3277 | if (dev->flags & IFF_PROMISC) { | |
3278 | /* Unconditionally log net taps. */ | |
b57b7e5a SH |
3279 | if (netif_msg_link(tp)) { |
3280 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
3281 | dev->name); | |
3282 | } | |
1da177e4 LT |
3283 | rx_mode = |
3284 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
3285 | AcceptAllPhys; | |
3286 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
3287 | } else if ((dev->mc_count > multicast_filter_limit) | |
3288 | || (dev->flags & IFF_ALLMULTI)) { | |
3289 | /* Too many to filter perfectly -- accept all multicasts. */ | |
3290 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
3291 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
3292 | } else { | |
3293 | struct dev_mc_list *mclist; | |
07d3f51f FR |
3294 | unsigned int i; |
3295 | ||
1da177e4 LT |
3296 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
3297 | mc_filter[1] = mc_filter[0] = 0; | |
3298 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
3299 | i++, mclist = mclist->next) { | |
3300 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
3301 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
3302 | rx_mode |= AcceptMulticast; | |
3303 | } | |
3304 | } | |
3305 | ||
3306 | spin_lock_irqsave(&tp->lock, flags); | |
3307 | ||
3308 | tmp = rtl8169_rx_config | rx_mode | | |
3309 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
3310 | ||
f887cce8 | 3311 | if (tp->mac_version > RTL_GIGA_MAC_VER_06) { |
1087f4f4 FR |
3312 | u32 data = mc_filter[0]; |
3313 | ||
3314 | mc_filter[0] = swab32(mc_filter[1]); | |
3315 | mc_filter[1] = swab32(data); | |
bcf0bf90 FR |
3316 | } |
3317 | ||
1da177e4 LT |
3318 | RTL_W32(MAR0 + 0, mc_filter[0]); |
3319 | RTL_W32(MAR0 + 4, mc_filter[1]); | |
3320 | ||
57a9f236 FR |
3321 | RTL_W32(RxConfig, tmp); |
3322 | ||
1da177e4 LT |
3323 | spin_unlock_irqrestore(&tp->lock, flags); |
3324 | } | |
3325 | ||
3326 | /** | |
3327 | * rtl8169_get_stats - Get rtl8169 read/write statistics | |
3328 | * @dev: The Ethernet Device to get statistics for | |
3329 | * | |
3330 | * Get TX/RX statistics for rtl8169 | |
3331 | */ | |
3332 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) | |
3333 | { | |
3334 | struct rtl8169_private *tp = netdev_priv(dev); | |
3335 | void __iomem *ioaddr = tp->mmio_addr; | |
3336 | unsigned long flags; | |
3337 | ||
3338 | if (netif_running(dev)) { | |
3339 | spin_lock_irqsave(&tp->lock, flags); | |
523a6094 | 3340 | rtl8169_rx_missed(dev, ioaddr); |
1da177e4 LT |
3341 | spin_unlock_irqrestore(&tp->lock, flags); |
3342 | } | |
5b0384f4 | 3343 | |
cebf8cc7 | 3344 | return &dev->stats; |
1da177e4 LT |
3345 | } |
3346 | ||
5d06a99f FR |
3347 | #ifdef CONFIG_PM |
3348 | ||
3349 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) | |
3350 | { | |
3351 | struct net_device *dev = pci_get_drvdata(pdev); | |
3352 | struct rtl8169_private *tp = netdev_priv(dev); | |
3353 | void __iomem *ioaddr = tp->mmio_addr; | |
3354 | ||
3355 | if (!netif_running(dev)) | |
1371fa6d | 3356 | goto out_pci_suspend; |
5d06a99f FR |
3357 | |
3358 | netif_device_detach(dev); | |
3359 | netif_stop_queue(dev); | |
3360 | ||
3361 | spin_lock_irq(&tp->lock); | |
3362 | ||
3363 | rtl8169_asic_down(ioaddr); | |
3364 | ||
523a6094 | 3365 | rtl8169_rx_missed(dev, ioaddr); |
5d06a99f FR |
3366 | |
3367 | spin_unlock_irq(&tp->lock); | |
3368 | ||
1371fa6d | 3369 | out_pci_suspend: |
5d06a99f | 3370 | pci_save_state(pdev); |
f23e7fda FR |
3371 | pci_enable_wake(pdev, pci_choose_state(pdev, state), |
3372 | (tp->features & RTL_FEATURE_WOL) ? 1 : 0); | |
5d06a99f | 3373 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
1371fa6d | 3374 | |
5d06a99f FR |
3375 | return 0; |
3376 | } | |
3377 | ||
3378 | static int rtl8169_resume(struct pci_dev *pdev) | |
3379 | { | |
3380 | struct net_device *dev = pci_get_drvdata(pdev); | |
3381 | ||
1371fa6d FR |
3382 | pci_set_power_state(pdev, PCI_D0); |
3383 | pci_restore_state(pdev); | |
3384 | pci_enable_wake(pdev, PCI_D0, 0); | |
3385 | ||
5d06a99f FR |
3386 | if (!netif_running(dev)) |
3387 | goto out; | |
3388 | ||
3389 | netif_device_attach(dev); | |
3390 | ||
5d06a99f FR |
3391 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
3392 | out: | |
3393 | return 0; | |
3394 | } | |
3395 | ||
3396 | #endif /* CONFIG_PM */ | |
3397 | ||
1da177e4 LT |
3398 | static struct pci_driver rtl8169_pci_driver = { |
3399 | .name = MODULENAME, | |
3400 | .id_table = rtl8169_pci_tbl, | |
3401 | .probe = rtl8169_init_one, | |
3402 | .remove = __devexit_p(rtl8169_remove_one), | |
3403 | #ifdef CONFIG_PM | |
3404 | .suspend = rtl8169_suspend, | |
3405 | .resume = rtl8169_resume, | |
3406 | #endif | |
3407 | }; | |
3408 | ||
07d3f51f | 3409 | static int __init rtl8169_init_module(void) |
1da177e4 | 3410 | { |
29917620 | 3411 | return pci_register_driver(&rtl8169_pci_driver); |
1da177e4 LT |
3412 | } |
3413 | ||
07d3f51f | 3414 | static void __exit rtl8169_cleanup_module(void) |
1da177e4 LT |
3415 | { |
3416 | pci_unregister_driver(&rtl8169_pci_driver); | |
3417 | } | |
3418 | ||
3419 | module_init(rtl8169_init_module); | |
3420 | module_exit(rtl8169_cleanup_module); |