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1da177e4 LT |
1 | /* 8139cp.c: A Linux PCI Ethernet driver for the RealTek 8139C+ chips. */ |
2 | /* | |
3 | Copyright 2001-2004 Jeff Garzik <jgarzik@pobox.com> | |
4 | ||
5 | Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com) [tg3.c] | |
6 | Copyright (C) 2000, 2001 David S. Miller (davem@redhat.com) [sungem.c] | |
7 | Copyright 2001 Manfred Spraul [natsemi.c] | |
8 | Copyright 1999-2001 by Donald Becker. [natsemi.c] | |
9 | Written 1997-2001 by Donald Becker. [8139too.c] | |
10 | Copyright 1998-2001 by Jes Sorensen, <jes@trained-monkey.org>. [acenic.c] | |
11 | ||
12 | This software may be used and distributed according to the terms of | |
13 | the GNU General Public License (GPL), incorporated herein by reference. | |
14 | Drivers based on or derived from this code fall under the GPL and must | |
15 | retain the authorship, copyright and license notice. This file is not | |
16 | a complete program and may only be used when the entire operating | |
17 | system is licensed under the GPL. | |
18 | ||
19 | See the file COPYING in this distribution for more information. | |
20 | ||
21 | Contributors: | |
22 | ||
23 | Wake-on-LAN support - Felipe Damasio <felipewd@terra.com.br> | |
24 | PCI suspend/resume - Felipe Damasio <felipewd@terra.com.br> | |
25 | LinkChg interrupt - Felipe Damasio <felipewd@terra.com.br> | |
26 | ||
27 | TODO: | |
28 | * Test Tx checksumming thoroughly | |
29 | * Implement dev->tx_timeout | |
30 | ||
31 | Low priority TODO: | |
32 | * Complete reset on PciErr | |
33 | * Consider Rx interrupt mitigation using TimerIntr | |
34 | * Investigate using skb->priority with h/w VLAN priority | |
35 | * Investigate using High Priority Tx Queue with skb->priority | |
36 | * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error | |
37 | * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error | |
38 | * Implement Tx software interrupt mitigation via | |
39 | Tx descriptor bit | |
40 | * The real minimum of CP_MIN_MTU is 4 bytes. However, | |
41 | for this to be supported, one must(?) turn on packet padding. | |
42 | * Support external MII transceivers (patch available) | |
43 | ||
44 | NOTES: | |
45 | * TX checksumming is considered experimental. It is off by | |
46 | default, use ethtool to turn it on. | |
47 | ||
48 | */ | |
49 | ||
50 | #define DRV_NAME "8139cp" | |
51 | #define DRV_VERSION "1.2" | |
52 | #define DRV_RELDATE "Mar 22, 2004" | |
53 | ||
54 | ||
55 | #include <linux/config.h> | |
56 | #include <linux/module.h> | |
e21ba282 | 57 | #include <linux/moduleparam.h> |
1da177e4 LT |
58 | #include <linux/kernel.h> |
59 | #include <linux/compiler.h> | |
60 | #include <linux/netdevice.h> | |
61 | #include <linux/etherdevice.h> | |
62 | #include <linux/init.h> | |
63 | #include <linux/pci.h> | |
8662d061 | 64 | #include <linux/dma-mapping.h> |
1da177e4 LT |
65 | #include <linux/delay.h> |
66 | #include <linux/ethtool.h> | |
67 | #include <linux/mii.h> | |
68 | #include <linux/if_vlan.h> | |
69 | #include <linux/crc32.h> | |
70 | #include <linux/in.h> | |
71 | #include <linux/ip.h> | |
72 | #include <linux/tcp.h> | |
73 | #include <linux/udp.h> | |
74 | #include <linux/cache.h> | |
75 | #include <asm/io.h> | |
76 | #include <asm/irq.h> | |
77 | #include <asm/uaccess.h> | |
78 | ||
79 | /* VLAN tagging feature enable/disable */ | |
80 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) | |
81 | #define CP_VLAN_TAG_USED 1 | |
82 | #define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \ | |
83 | do { (tx_desc)->opts2 = (vlan_tag_value); } while (0) | |
84 | #else | |
85 | #define CP_VLAN_TAG_USED 0 | |
86 | #define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \ | |
87 | do { (tx_desc)->opts2 = 0; } while (0) | |
88 | #endif | |
89 | ||
90 | /* These identify the driver base version and may not be removed. */ | |
91 | static char version[] = | |
92 | KERN_INFO DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; | |
93 | ||
94 | MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); | |
95 | MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver"); | |
a78d8927 | 96 | MODULE_VERSION(DRV_VERSION); |
1da177e4 LT |
97 | MODULE_LICENSE("GPL"); |
98 | ||
99 | static int debug = -1; | |
e21ba282 | 100 | module_param(debug, int, 0); |
1da177e4 LT |
101 | MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number"); |
102 | ||
103 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
104 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
105 | static int multicast_filter_limit = 32; | |
e21ba282 | 106 | module_param(multicast_filter_limit, int, 0); |
1da177e4 LT |
107 | MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses"); |
108 | ||
109 | #define PFX DRV_NAME ": " | |
110 | ||
111 | #ifndef TRUE | |
112 | #define FALSE 0 | |
113 | #define TRUE (!FALSE) | |
114 | #endif | |
115 | ||
116 | #define CP_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
117 | NETIF_MSG_PROBE | \ | |
118 | NETIF_MSG_LINK) | |
119 | #define CP_NUM_STATS 14 /* struct cp_dma_stats, plus one */ | |
120 | #define CP_STATS_SIZE 64 /* size in bytes of DMA stats block */ | |
121 | #define CP_REGS_SIZE (0xff + 1) | |
122 | #define CP_REGS_VER 1 /* version 1 */ | |
123 | #define CP_RX_RING_SIZE 64 | |
124 | #define CP_TX_RING_SIZE 64 | |
125 | #define CP_RING_BYTES \ | |
126 | ((sizeof(struct cp_desc) * CP_RX_RING_SIZE) + \ | |
127 | (sizeof(struct cp_desc) * CP_TX_RING_SIZE) + \ | |
128 | CP_STATS_SIZE) | |
129 | #define NEXT_TX(N) (((N) + 1) & (CP_TX_RING_SIZE - 1)) | |
130 | #define NEXT_RX(N) (((N) + 1) & (CP_RX_RING_SIZE - 1)) | |
131 | #define TX_BUFFS_AVAIL(CP) \ | |
132 | (((CP)->tx_tail <= (CP)->tx_head) ? \ | |
133 | (CP)->tx_tail + (CP_TX_RING_SIZE - 1) - (CP)->tx_head : \ | |
134 | (CP)->tx_tail - (CP)->tx_head - 1) | |
135 | ||
136 | #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ | |
137 | #define RX_OFFSET 2 | |
138 | #define CP_INTERNAL_PHY 32 | |
139 | ||
140 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | |
141 | #define RX_FIFO_THRESH 5 /* Rx buffer level before first PCI xfer. */ | |
142 | #define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 */ | |
143 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
144 | #define TX_EARLY_THRESH 256 /* Early Tx threshold, in bytes */ | |
145 | ||
146 | /* Time in jiffies before concluding the transmitter is hung. */ | |
147 | #define TX_TIMEOUT (6*HZ) | |
148 | ||
149 | /* hardware minimum and maximum for a single frame's data payload */ | |
150 | #define CP_MIN_MTU 60 /* TODO: allow lower, but pad */ | |
151 | #define CP_MAX_MTU 4096 | |
152 | ||
153 | enum { | |
154 | /* NIC register offsets */ | |
155 | MAC0 = 0x00, /* Ethernet hardware address. */ | |
156 | MAR0 = 0x08, /* Multicast filter. */ | |
157 | StatsAddr = 0x10, /* 64-bit start addr of 64-byte DMA stats blk */ | |
158 | TxRingAddr = 0x20, /* 64-bit start addr of Tx ring */ | |
159 | HiTxRingAddr = 0x28, /* 64-bit start addr of high priority Tx ring */ | |
160 | Cmd = 0x37, /* Command register */ | |
161 | IntrMask = 0x3C, /* Interrupt mask */ | |
162 | IntrStatus = 0x3E, /* Interrupt status */ | |
163 | TxConfig = 0x40, /* Tx configuration */ | |
164 | ChipVersion = 0x43, /* 8-bit chip version, inside TxConfig */ | |
165 | RxConfig = 0x44, /* Rx configuration */ | |
166 | RxMissed = 0x4C, /* 24 bits valid, write clears */ | |
167 | Cfg9346 = 0x50, /* EEPROM select/control; Cfg reg [un]lock */ | |
168 | Config1 = 0x52, /* Config1 */ | |
169 | Config3 = 0x59, /* Config3 */ | |
170 | Config4 = 0x5A, /* Config4 */ | |
171 | MultiIntr = 0x5C, /* Multiple interrupt select */ | |
172 | BasicModeCtrl = 0x62, /* MII BMCR */ | |
173 | BasicModeStatus = 0x64, /* MII BMSR */ | |
174 | NWayAdvert = 0x66, /* MII ADVERTISE */ | |
175 | NWayLPAR = 0x68, /* MII LPA */ | |
176 | NWayExpansion = 0x6A, /* MII Expansion */ | |
177 | Config5 = 0xD8, /* Config5 */ | |
178 | TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */ | |
179 | RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */ | |
180 | CpCmd = 0xE0, /* C+ Command register (C+ mode only) */ | |
181 | IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */ | |
182 | RxRingAddr = 0xE4, /* 64-bit start addr of Rx ring */ | |
183 | TxThresh = 0xEC, /* Early Tx threshold */ | |
184 | OldRxBufAddr = 0x30, /* DMA address of Rx ring buffer (C mode) */ | |
185 | OldTSD0 = 0x10, /* DMA address of first Tx desc (C mode) */ | |
186 | ||
187 | /* Tx and Rx status descriptors */ | |
188 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ | |
189 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
190 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
191 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
fcec3456 JG |
192 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ |
193 | MSSShift = 16, /* MSS value position */ | |
194 | MSSMask = 0xfff, /* MSS value: 11 bits */ | |
1da177e4 LT |
195 | TxError = (1 << 23), /* Tx error summary */ |
196 | RxError = (1 << 20), /* Rx error summary */ | |
197 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
198 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
199 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
200 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
201 | RxVlanTagged = (1 << 16), /* Rx VLAN tag available */ | |
202 | IPFail = (1 << 15), /* IP checksum failed */ | |
203 | UDPFail = (1 << 14), /* UDP/IP checksum failed */ | |
204 | TCPFail = (1 << 13), /* TCP/IP checksum failed */ | |
205 | NormalTxPoll = (1 << 6), /* One or more normal Tx packets to send */ | |
206 | PID1 = (1 << 17), /* 2 protocol id bits: 0==non-IP, */ | |
207 | PID0 = (1 << 16), /* 1==UDP/IP, 2==TCP/IP, 3==IP */ | |
208 | RxProtoTCP = 1, | |
209 | RxProtoUDP = 2, | |
210 | RxProtoIP = 3, | |
211 | TxFIFOUnder = (1 << 25), /* Tx FIFO underrun */ | |
212 | TxOWC = (1 << 22), /* Tx Out-of-window collision */ | |
213 | TxLinkFail = (1 << 21), /* Link failed during Tx of packet */ | |
214 | TxMaxCol = (1 << 20), /* Tx aborted due to excessive collisions */ | |
215 | TxColCntShift = 16, /* Shift, to get 4-bit Tx collision cnt */ | |
216 | TxColCntMask = 0x01 | 0x02 | 0x04 | 0x08, /* 4-bit collision count */ | |
217 | RxErrFrame = (1 << 27), /* Rx frame alignment error */ | |
218 | RxMcast = (1 << 26), /* Rx multicast packet rcv'd */ | |
219 | RxErrCRC = (1 << 18), /* Rx CRC error */ | |
220 | RxErrRunt = (1 << 19), /* Rx error, packet < 64 bytes */ | |
221 | RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */ | |
222 | RxErrFIFO = (1 << 22), /* Rx error, FIFO overflowed, pkt bad */ | |
223 | ||
224 | /* StatsAddr register */ | |
225 | DumpStats = (1 << 3), /* Begin stats dump */ | |
226 | ||
227 | /* RxConfig register */ | |
228 | RxCfgFIFOShift = 13, /* Shift, to get Rx FIFO thresh value */ | |
229 | RxCfgDMAShift = 8, /* Shift, to get Rx Max DMA value */ | |
230 | AcceptErr = 0x20, /* Accept packets with CRC errors */ | |
231 | AcceptRunt = 0x10, /* Accept runt (<64 bytes) packets */ | |
232 | AcceptBroadcast = 0x08, /* Accept broadcast packets */ | |
233 | AcceptMulticast = 0x04, /* Accept multicast packets */ | |
234 | AcceptMyPhys = 0x02, /* Accept pkts with our MAC as dest */ | |
235 | AcceptAllPhys = 0x01, /* Accept all pkts w/ physical dest */ | |
236 | ||
237 | /* IntrMask / IntrStatus registers */ | |
238 | PciErr = (1 << 15), /* System error on the PCI bus */ | |
239 | TimerIntr = (1 << 14), /* Asserted when TCTR reaches TimerInt value */ | |
240 | LenChg = (1 << 13), /* Cable length change */ | |
241 | SWInt = (1 << 8), /* Software-requested interrupt */ | |
242 | TxEmpty = (1 << 7), /* No Tx descriptors available */ | |
243 | RxFIFOOvr = (1 << 6), /* Rx FIFO Overflow */ | |
244 | LinkChg = (1 << 5), /* Packet underrun, or link change */ | |
245 | RxEmpty = (1 << 4), /* No Rx descriptors available */ | |
246 | TxErr = (1 << 3), /* Tx error */ | |
247 | TxOK = (1 << 2), /* Tx packet sent */ | |
248 | RxErr = (1 << 1), /* Rx error */ | |
249 | RxOK = (1 << 0), /* Rx packet received */ | |
250 | IntrResvd = (1 << 10), /* reserved, according to RealTek engineers, | |
251 | but hardware likes to raise it */ | |
252 | ||
253 | IntrAll = PciErr | TimerIntr | LenChg | SWInt | TxEmpty | | |
254 | RxFIFOOvr | LinkChg | RxEmpty | TxErr | TxOK | | |
255 | RxErr | RxOK | IntrResvd, | |
256 | ||
257 | /* C mode command register */ | |
258 | CmdReset = (1 << 4), /* Enable to reset; self-clearing */ | |
259 | RxOn = (1 << 3), /* Rx mode enable */ | |
260 | TxOn = (1 << 2), /* Tx mode enable */ | |
261 | ||
262 | /* C+ mode command register */ | |
263 | RxVlanOn = (1 << 6), /* Rx VLAN de-tagging enable */ | |
264 | RxChkSum = (1 << 5), /* Rx checksum offload enable */ | |
265 | PCIDAC = (1 << 4), /* PCI Dual Address Cycle (64-bit PCI) */ | |
266 | PCIMulRW = (1 << 3), /* Enable PCI read/write multiple */ | |
267 | CpRxOn = (1 << 1), /* Rx mode enable */ | |
268 | CpTxOn = (1 << 0), /* Tx mode enable */ | |
269 | ||
270 | /* Cfg9436 EEPROM control register */ | |
271 | Cfg9346_Lock = 0x00, /* Lock ConfigX/MII register access */ | |
272 | Cfg9346_Unlock = 0xC0, /* Unlock ConfigX/MII register access */ | |
273 | ||
274 | /* TxConfig register */ | |
275 | IFG = (1 << 25) | (1 << 24), /* standard IEEE interframe gap */ | |
276 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
277 | ||
278 | /* Early Tx Threshold register */ | |
279 | TxThreshMask = 0x3f, /* Mask bits 5-0 */ | |
280 | TxThreshMax = 2048, /* Max early Tx threshold */ | |
281 | ||
282 | /* Config1 register */ | |
283 | DriverLoaded = (1 << 5), /* Software marker, driver is loaded */ | |
284 | LWACT = (1 << 4), /* LWAKE active mode */ | |
285 | PMEnable = (1 << 0), /* Enable various PM features of chip */ | |
286 | ||
287 | /* Config3 register */ | |
288 | PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */ | |
289 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
290 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
291 | ||
292 | /* Config4 register */ | |
293 | LWPTN = (1 << 1), /* LWAKE Pattern */ | |
294 | LWPME = (1 << 4), /* LANWAKE vs PMEB */ | |
295 | ||
296 | /* Config5 register */ | |
297 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ | |
298 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
299 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
300 | LANWake = (1 << 1), /* Enable LANWake signal */ | |
301 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ | |
302 | ||
303 | cp_norx_intr_mask = PciErr | LinkChg | TxOK | TxErr | TxEmpty, | |
304 | cp_rx_intr_mask = RxOK | RxErr | RxEmpty | RxFIFOOvr, | |
305 | cp_intr_mask = cp_rx_intr_mask | cp_norx_intr_mask, | |
306 | }; | |
307 | ||
308 | static const unsigned int cp_rx_config = | |
309 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
310 | (RX_DMA_BURST << RxCfgDMAShift); | |
311 | ||
312 | struct cp_desc { | |
313 | u32 opts1; | |
314 | u32 opts2; | |
315 | u64 addr; | |
316 | }; | |
317 | ||
318 | struct ring_info { | |
319 | struct sk_buff *skb; | |
320 | dma_addr_t mapping; | |
5734418d | 321 | u32 len; |
1da177e4 LT |
322 | }; |
323 | ||
324 | struct cp_dma_stats { | |
325 | u64 tx_ok; | |
326 | u64 rx_ok; | |
327 | u64 tx_err; | |
328 | u32 rx_err; | |
329 | u16 rx_fifo; | |
330 | u16 frame_align; | |
331 | u32 tx_ok_1col; | |
332 | u32 tx_ok_mcol; | |
333 | u64 rx_ok_phys; | |
334 | u64 rx_ok_bcast; | |
335 | u32 rx_ok_mcast; | |
336 | u16 tx_abort; | |
337 | u16 tx_underrun; | |
338 | } __attribute__((packed)); | |
339 | ||
340 | struct cp_extra_stats { | |
341 | unsigned long rx_frags; | |
342 | }; | |
343 | ||
344 | struct cp_private { | |
345 | void __iomem *regs; | |
346 | struct net_device *dev; | |
347 | spinlock_t lock; | |
348 | u32 msg_enable; | |
349 | ||
350 | struct pci_dev *pdev; | |
351 | u32 rx_config; | |
352 | u16 cpcmd; | |
353 | ||
354 | struct net_device_stats net_stats; | |
355 | struct cp_extra_stats cp_stats; | |
356 | struct cp_dma_stats *nic_stats; | |
357 | dma_addr_t nic_stats_dma; | |
358 | ||
359 | unsigned rx_tail ____cacheline_aligned; | |
360 | struct cp_desc *rx_ring; | |
361 | struct ring_info rx_skb[CP_RX_RING_SIZE]; | |
362 | unsigned rx_buf_sz; | |
363 | ||
364 | unsigned tx_head ____cacheline_aligned; | |
365 | unsigned tx_tail; | |
366 | ||
367 | struct cp_desc *tx_ring; | |
368 | struct ring_info tx_skb[CP_TX_RING_SIZE]; | |
369 | dma_addr_t ring_dma; | |
370 | ||
371 | #if CP_VLAN_TAG_USED | |
372 | struct vlan_group *vlgrp; | |
373 | #endif | |
374 | ||
375 | unsigned int wol_enabled : 1; /* Is Wake-on-LAN enabled? */ | |
376 | ||
377 | struct mii_if_info mii_if; | |
378 | }; | |
379 | ||
380 | #define cpr8(reg) readb(cp->regs + (reg)) | |
381 | #define cpr16(reg) readw(cp->regs + (reg)) | |
382 | #define cpr32(reg) readl(cp->regs + (reg)) | |
383 | #define cpw8(reg,val) writeb((val), cp->regs + (reg)) | |
384 | #define cpw16(reg,val) writew((val), cp->regs + (reg)) | |
385 | #define cpw32(reg,val) writel((val), cp->regs + (reg)) | |
386 | #define cpw8_f(reg,val) do { \ | |
387 | writeb((val), cp->regs + (reg)); \ | |
388 | readb(cp->regs + (reg)); \ | |
389 | } while (0) | |
390 | #define cpw16_f(reg,val) do { \ | |
391 | writew((val), cp->regs + (reg)); \ | |
392 | readw(cp->regs + (reg)); \ | |
393 | } while (0) | |
394 | #define cpw32_f(reg,val) do { \ | |
395 | writel((val), cp->regs + (reg)); \ | |
396 | readl(cp->regs + (reg)); \ | |
397 | } while (0) | |
398 | ||
399 | ||
400 | static void __cp_set_rx_mode (struct net_device *dev); | |
401 | static void cp_tx (struct cp_private *cp); | |
402 | static void cp_clean_rings (struct cp_private *cp); | |
7502cd10 SK |
403 | #ifdef CONFIG_NET_POLL_CONTROLLER |
404 | static void cp_poll_controller(struct net_device *dev); | |
405 | #endif | |
1da177e4 LT |
406 | |
407 | static struct pci_device_id cp_pci_tbl[] = { | |
408 | { PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139, | |
409 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, }, | |
410 | { PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322, | |
411 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, }, | |
412 | { }, | |
413 | }; | |
414 | MODULE_DEVICE_TABLE(pci, cp_pci_tbl); | |
415 | ||
416 | static struct { | |
417 | const char str[ETH_GSTRING_LEN]; | |
418 | } ethtool_stats_keys[] = { | |
419 | { "tx_ok" }, | |
420 | { "rx_ok" }, | |
421 | { "tx_err" }, | |
422 | { "rx_err" }, | |
423 | { "rx_fifo" }, | |
424 | { "frame_align" }, | |
425 | { "tx_ok_1col" }, | |
426 | { "tx_ok_mcol" }, | |
427 | { "rx_ok_phys" }, | |
428 | { "rx_ok_bcast" }, | |
429 | { "rx_ok_mcast" }, | |
430 | { "tx_abort" }, | |
431 | { "tx_underrun" }, | |
432 | { "rx_frags" }, | |
433 | }; | |
434 | ||
435 | ||
436 | #if CP_VLAN_TAG_USED | |
437 | static void cp_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
438 | { | |
439 | struct cp_private *cp = netdev_priv(dev); | |
440 | unsigned long flags; | |
441 | ||
442 | spin_lock_irqsave(&cp->lock, flags); | |
443 | cp->vlgrp = grp; | |
444 | cp->cpcmd |= RxVlanOn; | |
445 | cpw16(CpCmd, cp->cpcmd); | |
446 | spin_unlock_irqrestore(&cp->lock, flags); | |
447 | } | |
448 | ||
449 | static void cp_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
450 | { | |
451 | struct cp_private *cp = netdev_priv(dev); | |
452 | unsigned long flags; | |
453 | ||
454 | spin_lock_irqsave(&cp->lock, flags); | |
455 | cp->cpcmd &= ~RxVlanOn; | |
456 | cpw16(CpCmd, cp->cpcmd); | |
457 | if (cp->vlgrp) | |
458 | cp->vlgrp->vlan_devices[vid] = NULL; | |
459 | spin_unlock_irqrestore(&cp->lock, flags); | |
460 | } | |
461 | #endif /* CP_VLAN_TAG_USED */ | |
462 | ||
463 | static inline void cp_set_rxbufsize (struct cp_private *cp) | |
464 | { | |
465 | unsigned int mtu = cp->dev->mtu; | |
466 | ||
467 | if (mtu > ETH_DATA_LEN) | |
468 | /* MTU + ethernet header + FCS + optional VLAN tag */ | |
469 | cp->rx_buf_sz = mtu + ETH_HLEN + 8; | |
470 | else | |
471 | cp->rx_buf_sz = PKT_BUF_SZ; | |
472 | } | |
473 | ||
474 | static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb, | |
475 | struct cp_desc *desc) | |
476 | { | |
477 | skb->protocol = eth_type_trans (skb, cp->dev); | |
478 | ||
479 | cp->net_stats.rx_packets++; | |
480 | cp->net_stats.rx_bytes += skb->len; | |
481 | cp->dev->last_rx = jiffies; | |
482 | ||
483 | #if CP_VLAN_TAG_USED | |
484 | if (cp->vlgrp && (desc->opts2 & RxVlanTagged)) { | |
485 | vlan_hwaccel_receive_skb(skb, cp->vlgrp, | |
486 | be16_to_cpu(desc->opts2 & 0xffff)); | |
487 | } else | |
488 | #endif | |
489 | netif_receive_skb(skb); | |
490 | } | |
491 | ||
492 | static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail, | |
493 | u32 status, u32 len) | |
494 | { | |
495 | if (netif_msg_rx_err (cp)) | |
496 | printk (KERN_DEBUG | |
497 | "%s: rx err, slot %d status 0x%x len %d\n", | |
498 | cp->dev->name, rx_tail, status, len); | |
499 | cp->net_stats.rx_errors++; | |
500 | if (status & RxErrFrame) | |
501 | cp->net_stats.rx_frame_errors++; | |
502 | if (status & RxErrCRC) | |
503 | cp->net_stats.rx_crc_errors++; | |
504 | if ((status & RxErrRunt) || (status & RxErrLong)) | |
505 | cp->net_stats.rx_length_errors++; | |
506 | if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) | |
507 | cp->net_stats.rx_length_errors++; | |
508 | if (status & RxErrFIFO) | |
509 | cp->net_stats.rx_fifo_errors++; | |
510 | } | |
511 | ||
512 | static inline unsigned int cp_rx_csum_ok (u32 status) | |
513 | { | |
514 | unsigned int protocol = (status >> 16) & 0x3; | |
515 | ||
516 | if (likely((protocol == RxProtoTCP) && (!(status & TCPFail)))) | |
517 | return 1; | |
518 | else if ((protocol == RxProtoUDP) && (!(status & UDPFail))) | |
519 | return 1; | |
520 | else if ((protocol == RxProtoIP) && (!(status & IPFail))) | |
521 | return 1; | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int cp_rx_poll (struct net_device *dev, int *budget) | |
526 | { | |
527 | struct cp_private *cp = netdev_priv(dev); | |
528 | unsigned rx_tail = cp->rx_tail; | |
529 | unsigned rx_work = dev->quota; | |
530 | unsigned rx; | |
531 | ||
532 | rx_status_loop: | |
533 | rx = 0; | |
534 | cpw16(IntrStatus, cp_rx_intr_mask); | |
535 | ||
536 | while (1) { | |
537 | u32 status, len; | |
538 | dma_addr_t mapping; | |
539 | struct sk_buff *skb, *new_skb; | |
540 | struct cp_desc *desc; | |
541 | unsigned buflen; | |
542 | ||
543 | skb = cp->rx_skb[rx_tail].skb; | |
544 | if (!skb) | |
545 | BUG(); | |
546 | ||
547 | desc = &cp->rx_ring[rx_tail]; | |
548 | status = le32_to_cpu(desc->opts1); | |
549 | if (status & DescOwn) | |
550 | break; | |
551 | ||
552 | len = (status & 0x1fff) - 4; | |
553 | mapping = cp->rx_skb[rx_tail].mapping; | |
554 | ||
555 | if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) { | |
556 | /* we don't support incoming fragmented frames. | |
557 | * instead, we attempt to ensure that the | |
558 | * pre-allocated RX skbs are properly sized such | |
559 | * that RX fragments are never encountered | |
560 | */ | |
561 | cp_rx_err_acct(cp, rx_tail, status, len); | |
562 | cp->net_stats.rx_dropped++; | |
563 | cp->cp_stats.rx_frags++; | |
564 | goto rx_next; | |
565 | } | |
566 | ||
567 | if (status & (RxError | RxErrFIFO)) { | |
568 | cp_rx_err_acct(cp, rx_tail, status, len); | |
569 | goto rx_next; | |
570 | } | |
571 | ||
572 | if (netif_msg_rx_status(cp)) | |
573 | printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d\n", | |
574 | cp->dev->name, rx_tail, status, len); | |
575 | ||
576 | buflen = cp->rx_buf_sz + RX_OFFSET; | |
577 | new_skb = dev_alloc_skb (buflen); | |
578 | if (!new_skb) { | |
579 | cp->net_stats.rx_dropped++; | |
580 | goto rx_next; | |
581 | } | |
582 | ||
583 | skb_reserve(new_skb, RX_OFFSET); | |
584 | new_skb->dev = cp->dev; | |
585 | ||
586 | pci_unmap_single(cp->pdev, mapping, | |
587 | buflen, PCI_DMA_FROMDEVICE); | |
588 | ||
589 | /* Handle checksum offloading for incoming packets. */ | |
590 | if (cp_rx_csum_ok(status)) | |
591 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
592 | else | |
593 | skb->ip_summed = CHECKSUM_NONE; | |
594 | ||
595 | skb_put(skb, len); | |
596 | ||
597 | mapping = | |
598 | cp->rx_skb[rx_tail].mapping = | |
599 | pci_map_single(cp->pdev, new_skb->tail, | |
600 | buflen, PCI_DMA_FROMDEVICE); | |
601 | cp->rx_skb[rx_tail].skb = new_skb; | |
602 | ||
603 | cp_rx_skb(cp, skb, desc); | |
604 | rx++; | |
605 | ||
606 | rx_next: | |
607 | cp->rx_ring[rx_tail].opts2 = 0; | |
608 | cp->rx_ring[rx_tail].addr = cpu_to_le64(mapping); | |
609 | if (rx_tail == (CP_RX_RING_SIZE - 1)) | |
610 | desc->opts1 = cpu_to_le32(DescOwn | RingEnd | | |
611 | cp->rx_buf_sz); | |
612 | else | |
613 | desc->opts1 = cpu_to_le32(DescOwn | cp->rx_buf_sz); | |
614 | rx_tail = NEXT_RX(rx_tail); | |
615 | ||
616 | if (!rx_work--) | |
617 | break; | |
618 | } | |
619 | ||
620 | cp->rx_tail = rx_tail; | |
621 | ||
622 | dev->quota -= rx; | |
623 | *budget -= rx; | |
624 | ||
625 | /* if we did not reach work limit, then we're done with | |
626 | * this round of polling | |
627 | */ | |
628 | if (rx_work) { | |
629 | if (cpr16(IntrStatus) & cp_rx_intr_mask) | |
630 | goto rx_status_loop; | |
631 | ||
632 | local_irq_disable(); | |
633 | cpw16_f(IntrMask, cp_intr_mask); | |
634 | __netif_rx_complete(dev); | |
635 | local_irq_enable(); | |
636 | ||
637 | return 0; /* done */ | |
638 | } | |
639 | ||
640 | return 1; /* not done */ | |
641 | } | |
642 | ||
643 | static irqreturn_t | |
644 | cp_interrupt (int irq, void *dev_instance, struct pt_regs *regs) | |
645 | { | |
646 | struct net_device *dev = dev_instance; | |
647 | struct cp_private *cp; | |
648 | u16 status; | |
649 | ||
650 | if (unlikely(dev == NULL)) | |
651 | return IRQ_NONE; | |
652 | cp = netdev_priv(dev); | |
653 | ||
654 | status = cpr16(IntrStatus); | |
655 | if (!status || (status == 0xFFFF)) | |
656 | return IRQ_NONE; | |
657 | ||
658 | if (netif_msg_intr(cp)) | |
659 | printk(KERN_DEBUG "%s: intr, status %04x cmd %02x cpcmd %04x\n", | |
660 | dev->name, status, cpr8(Cmd), cpr16(CpCmd)); | |
661 | ||
662 | cpw16(IntrStatus, status & ~cp_rx_intr_mask); | |
663 | ||
664 | spin_lock(&cp->lock); | |
665 | ||
666 | /* close possible race's with dev_close */ | |
667 | if (unlikely(!netif_running(dev))) { | |
668 | cpw16(IntrMask, 0); | |
669 | spin_unlock(&cp->lock); | |
670 | return IRQ_HANDLED; | |
671 | } | |
672 | ||
673 | if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr)) | |
674 | if (netif_rx_schedule_prep(dev)) { | |
675 | cpw16_f(IntrMask, cp_norx_intr_mask); | |
676 | __netif_rx_schedule(dev); | |
677 | } | |
678 | ||
679 | if (status & (TxOK | TxErr | TxEmpty | SWInt)) | |
680 | cp_tx(cp); | |
681 | if (status & LinkChg) | |
682 | mii_check_media(&cp->mii_if, netif_msg_link(cp), FALSE); | |
683 | ||
684 | spin_unlock(&cp->lock); | |
685 | ||
686 | if (status & PciErr) { | |
687 | u16 pci_status; | |
688 | ||
689 | pci_read_config_word(cp->pdev, PCI_STATUS, &pci_status); | |
690 | pci_write_config_word(cp->pdev, PCI_STATUS, pci_status); | |
691 | printk(KERN_ERR "%s: PCI bus error, status=%04x, PCI status=%04x\n", | |
692 | dev->name, status, pci_status); | |
693 | ||
694 | /* TODO: reset hardware */ | |
695 | } | |
696 | ||
697 | return IRQ_HANDLED; | |
698 | } | |
699 | ||
7502cd10 SK |
700 | #ifdef CONFIG_NET_POLL_CONTROLLER |
701 | /* | |
702 | * Polling receive - used by netconsole and other diagnostic tools | |
703 | * to allow network i/o with interrupts disabled. | |
704 | */ | |
705 | static void cp_poll_controller(struct net_device *dev) | |
706 | { | |
707 | disable_irq(dev->irq); | |
708 | cp_interrupt(dev->irq, dev, NULL); | |
709 | enable_irq(dev->irq); | |
710 | } | |
711 | #endif | |
712 | ||
1da177e4 LT |
713 | static void cp_tx (struct cp_private *cp) |
714 | { | |
715 | unsigned tx_head = cp->tx_head; | |
716 | unsigned tx_tail = cp->tx_tail; | |
717 | ||
718 | while (tx_tail != tx_head) { | |
719 | struct sk_buff *skb; | |
720 | u32 status; | |
721 | ||
722 | rmb(); | |
723 | status = le32_to_cpu(cp->tx_ring[tx_tail].opts1); | |
724 | if (status & DescOwn) | |
725 | break; | |
726 | ||
727 | skb = cp->tx_skb[tx_tail].skb; | |
728 | if (!skb) | |
729 | BUG(); | |
730 | ||
731 | pci_unmap_single(cp->pdev, cp->tx_skb[tx_tail].mapping, | |
5734418d | 732 | cp->tx_skb[tx_tail].len, PCI_DMA_TODEVICE); |
1da177e4 LT |
733 | |
734 | if (status & LastFrag) { | |
735 | if (status & (TxError | TxFIFOUnder)) { | |
736 | if (netif_msg_tx_err(cp)) | |
737 | printk(KERN_DEBUG "%s: tx err, status 0x%x\n", | |
738 | cp->dev->name, status); | |
739 | cp->net_stats.tx_errors++; | |
740 | if (status & TxOWC) | |
741 | cp->net_stats.tx_window_errors++; | |
742 | if (status & TxMaxCol) | |
743 | cp->net_stats.tx_aborted_errors++; | |
744 | if (status & TxLinkFail) | |
745 | cp->net_stats.tx_carrier_errors++; | |
746 | if (status & TxFIFOUnder) | |
747 | cp->net_stats.tx_fifo_errors++; | |
748 | } else { | |
749 | cp->net_stats.collisions += | |
750 | ((status >> TxColCntShift) & TxColCntMask); | |
751 | cp->net_stats.tx_packets++; | |
752 | cp->net_stats.tx_bytes += skb->len; | |
753 | if (netif_msg_tx_done(cp)) | |
754 | printk(KERN_DEBUG "%s: tx done, slot %d\n", cp->dev->name, tx_tail); | |
755 | } | |
756 | dev_kfree_skb_irq(skb); | |
757 | } | |
758 | ||
759 | cp->tx_skb[tx_tail].skb = NULL; | |
760 | ||
761 | tx_tail = NEXT_TX(tx_tail); | |
762 | } | |
763 | ||
764 | cp->tx_tail = tx_tail; | |
765 | ||
766 | if (TX_BUFFS_AVAIL(cp) > (MAX_SKB_FRAGS + 1)) | |
767 | netif_wake_queue(cp->dev); | |
768 | } | |
769 | ||
770 | static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
771 | { | |
772 | struct cp_private *cp = netdev_priv(dev); | |
773 | unsigned entry; | |
fcec3456 | 774 | u32 eor, flags; |
1da177e4 LT |
775 | #if CP_VLAN_TAG_USED |
776 | u32 vlan_tag = 0; | |
777 | #endif | |
fcec3456 | 778 | int mss = 0; |
1da177e4 LT |
779 | |
780 | spin_lock_irq(&cp->lock); | |
781 | ||
782 | /* This is a hard error, log it. */ | |
783 | if (TX_BUFFS_AVAIL(cp) <= (skb_shinfo(skb)->nr_frags + 1)) { | |
784 | netif_stop_queue(dev); | |
785 | spin_unlock_irq(&cp->lock); | |
786 | printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n", | |
787 | dev->name); | |
788 | return 1; | |
789 | } | |
790 | ||
791 | #if CP_VLAN_TAG_USED | |
792 | if (cp->vlgrp && vlan_tx_tag_present(skb)) | |
793 | vlan_tag = TxVlanTag | cpu_to_be16(vlan_tx_tag_get(skb)); | |
794 | #endif | |
795 | ||
796 | entry = cp->tx_head; | |
797 | eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0; | |
fcec3456 JG |
798 | if (dev->features & NETIF_F_TSO) |
799 | mss = skb_shinfo(skb)->tso_size; | |
800 | ||
1da177e4 LT |
801 | if (skb_shinfo(skb)->nr_frags == 0) { |
802 | struct cp_desc *txd = &cp->tx_ring[entry]; | |
803 | u32 len; | |
804 | dma_addr_t mapping; | |
805 | ||
806 | len = skb->len; | |
807 | mapping = pci_map_single(cp->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
808 | CP_VLAN_TX_TAG(txd, vlan_tag); | |
809 | txd->addr = cpu_to_le64(mapping); | |
810 | wmb(); | |
811 | ||
fcec3456 JG |
812 | flags = eor | len | DescOwn | FirstFrag | LastFrag; |
813 | ||
814 | if (mss) | |
815 | flags |= LargeSend | ((mss & MSSMask) << MSSShift); | |
816 | else if (skb->ip_summed == CHECKSUM_HW) { | |
1da177e4 LT |
817 | const struct iphdr *ip = skb->nh.iph; |
818 | if (ip->protocol == IPPROTO_TCP) | |
fcec3456 | 819 | flags |= IPCS | TCPCS; |
1da177e4 | 820 | else if (ip->protocol == IPPROTO_UDP) |
fcec3456 | 821 | flags |= IPCS | UDPCS; |
1da177e4 | 822 | else |
5734418d | 823 | WARN_ON(1); /* we need a WARN() */ |
fcec3456 JG |
824 | } |
825 | ||
826 | txd->opts1 = cpu_to_le32(flags); | |
1da177e4 LT |
827 | wmb(); |
828 | ||
829 | cp->tx_skb[entry].skb = skb; | |
830 | cp->tx_skb[entry].mapping = mapping; | |
5734418d | 831 | cp->tx_skb[entry].len = len; |
1da177e4 LT |
832 | entry = NEXT_TX(entry); |
833 | } else { | |
834 | struct cp_desc *txd; | |
835 | u32 first_len, first_eor; | |
836 | dma_addr_t first_mapping; | |
837 | int frag, first_entry = entry; | |
838 | const struct iphdr *ip = skb->nh.iph; | |
839 | ||
840 | /* We must give this initial chunk to the device last. | |
841 | * Otherwise we could race with the device. | |
842 | */ | |
843 | first_eor = eor; | |
844 | first_len = skb_headlen(skb); | |
845 | first_mapping = pci_map_single(cp->pdev, skb->data, | |
846 | first_len, PCI_DMA_TODEVICE); | |
847 | cp->tx_skb[entry].skb = skb; | |
848 | cp->tx_skb[entry].mapping = first_mapping; | |
5734418d | 849 | cp->tx_skb[entry].len = first_len; |
1da177e4 LT |
850 | entry = NEXT_TX(entry); |
851 | ||
852 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { | |
853 | skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; | |
854 | u32 len; | |
855 | u32 ctrl; | |
856 | dma_addr_t mapping; | |
857 | ||
858 | len = this_frag->size; | |
859 | mapping = pci_map_single(cp->pdev, | |
860 | ((void *) page_address(this_frag->page) + | |
861 | this_frag->page_offset), | |
862 | len, PCI_DMA_TODEVICE); | |
863 | eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0; | |
864 | ||
fcec3456 JG |
865 | ctrl = eor | len | DescOwn; |
866 | ||
867 | if (mss) | |
868 | ctrl |= LargeSend | | |
869 | ((mss & MSSMask) << MSSShift); | |
870 | else if (skb->ip_summed == CHECKSUM_HW) { | |
1da177e4 | 871 | if (ip->protocol == IPPROTO_TCP) |
fcec3456 | 872 | ctrl |= IPCS | TCPCS; |
1da177e4 | 873 | else if (ip->protocol == IPPROTO_UDP) |
fcec3456 | 874 | ctrl |= IPCS | UDPCS; |
1da177e4 LT |
875 | else |
876 | BUG(); | |
fcec3456 | 877 | } |
1da177e4 LT |
878 | |
879 | if (frag == skb_shinfo(skb)->nr_frags - 1) | |
880 | ctrl |= LastFrag; | |
881 | ||
882 | txd = &cp->tx_ring[entry]; | |
883 | CP_VLAN_TX_TAG(txd, vlan_tag); | |
884 | txd->addr = cpu_to_le64(mapping); | |
885 | wmb(); | |
886 | ||
887 | txd->opts1 = cpu_to_le32(ctrl); | |
888 | wmb(); | |
889 | ||
890 | cp->tx_skb[entry].skb = skb; | |
891 | cp->tx_skb[entry].mapping = mapping; | |
5734418d | 892 | cp->tx_skb[entry].len = len; |
1da177e4 LT |
893 | entry = NEXT_TX(entry); |
894 | } | |
895 | ||
896 | txd = &cp->tx_ring[first_entry]; | |
897 | CP_VLAN_TX_TAG(txd, vlan_tag); | |
898 | txd->addr = cpu_to_le64(first_mapping); | |
899 | wmb(); | |
900 | ||
901 | if (skb->ip_summed == CHECKSUM_HW) { | |
902 | if (ip->protocol == IPPROTO_TCP) | |
903 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
904 | FirstFrag | DescOwn | | |
905 | IPCS | TCPCS); | |
906 | else if (ip->protocol == IPPROTO_UDP) | |
907 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
908 | FirstFrag | DescOwn | | |
909 | IPCS | UDPCS); | |
910 | else | |
911 | BUG(); | |
912 | } else | |
913 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
914 | FirstFrag | DescOwn); | |
915 | wmb(); | |
916 | } | |
917 | cp->tx_head = entry; | |
918 | if (netif_msg_tx_queued(cp)) | |
919 | printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n", | |
920 | dev->name, entry, skb->len); | |
921 | if (TX_BUFFS_AVAIL(cp) <= (MAX_SKB_FRAGS + 1)) | |
922 | netif_stop_queue(dev); | |
923 | ||
924 | spin_unlock_irq(&cp->lock); | |
925 | ||
926 | cpw8(TxPoll, NormalTxPoll); | |
927 | dev->trans_start = jiffies; | |
928 | ||
929 | return 0; | |
930 | } | |
931 | ||
932 | /* Set or clear the multicast filter for this adaptor. | |
933 | This routine is not state sensitive and need not be SMP locked. */ | |
934 | ||
935 | static void __cp_set_rx_mode (struct net_device *dev) | |
936 | { | |
937 | struct cp_private *cp = netdev_priv(dev); | |
938 | u32 mc_filter[2]; /* Multicast hash filter */ | |
939 | int i, rx_mode; | |
940 | u32 tmp; | |
941 | ||
942 | /* Note: do not reorder, GCC is clever about common statements. */ | |
943 | if (dev->flags & IFF_PROMISC) { | |
944 | /* Unconditionally log net taps. */ | |
945 | printk (KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
946 | dev->name); | |
947 | rx_mode = | |
948 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
949 | AcceptAllPhys; | |
950 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
951 | } else if ((dev->mc_count > multicast_filter_limit) | |
952 | || (dev->flags & IFF_ALLMULTI)) { | |
953 | /* Too many to filter perfectly -- accept all multicasts. */ | |
954 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
955 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
956 | } else { | |
957 | struct dev_mc_list *mclist; | |
958 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
959 | mc_filter[1] = mc_filter[0] = 0; | |
960 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
961 | i++, mclist = mclist->next) { | |
962 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
963 | ||
964 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
965 | rx_mode |= AcceptMulticast; | |
966 | } | |
967 | } | |
968 | ||
969 | /* We can safely update without stopping the chip. */ | |
970 | tmp = cp_rx_config | rx_mode; | |
971 | if (cp->rx_config != tmp) { | |
972 | cpw32_f (RxConfig, tmp); | |
973 | cp->rx_config = tmp; | |
974 | } | |
975 | cpw32_f (MAR0 + 0, mc_filter[0]); | |
976 | cpw32_f (MAR0 + 4, mc_filter[1]); | |
977 | } | |
978 | ||
979 | static void cp_set_rx_mode (struct net_device *dev) | |
980 | { | |
981 | unsigned long flags; | |
982 | struct cp_private *cp = netdev_priv(dev); | |
983 | ||
984 | spin_lock_irqsave (&cp->lock, flags); | |
985 | __cp_set_rx_mode(dev); | |
986 | spin_unlock_irqrestore (&cp->lock, flags); | |
987 | } | |
988 | ||
989 | static void __cp_get_stats(struct cp_private *cp) | |
990 | { | |
991 | /* only lower 24 bits valid; write any value to clear */ | |
992 | cp->net_stats.rx_missed_errors += (cpr32 (RxMissed) & 0xffffff); | |
993 | cpw32 (RxMissed, 0); | |
994 | } | |
995 | ||
996 | static struct net_device_stats *cp_get_stats(struct net_device *dev) | |
997 | { | |
998 | struct cp_private *cp = netdev_priv(dev); | |
999 | unsigned long flags; | |
1000 | ||
1001 | /* The chip only need report frame silently dropped. */ | |
1002 | spin_lock_irqsave(&cp->lock, flags); | |
1003 | if (netif_running(dev) && netif_device_present(dev)) | |
1004 | __cp_get_stats(cp); | |
1005 | spin_unlock_irqrestore(&cp->lock, flags); | |
1006 | ||
1007 | return &cp->net_stats; | |
1008 | } | |
1009 | ||
1010 | static void cp_stop_hw (struct cp_private *cp) | |
1011 | { | |
1012 | cpw16(IntrStatus, ~(cpr16(IntrStatus))); | |
1013 | cpw16_f(IntrMask, 0); | |
1014 | cpw8(Cmd, 0); | |
1015 | cpw16_f(CpCmd, 0); | |
1016 | cpw16_f(IntrStatus, ~(cpr16(IntrStatus))); | |
1017 | ||
1018 | cp->rx_tail = 0; | |
1019 | cp->tx_head = cp->tx_tail = 0; | |
1020 | } | |
1021 | ||
1022 | static void cp_reset_hw (struct cp_private *cp) | |
1023 | { | |
1024 | unsigned work = 1000; | |
1025 | ||
1026 | cpw8(Cmd, CmdReset); | |
1027 | ||
1028 | while (work--) { | |
1029 | if (!(cpr8(Cmd) & CmdReset)) | |
1030 | return; | |
1031 | ||
1032 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1033 | schedule_timeout(10); | |
1034 | } | |
1035 | ||
1036 | printk(KERN_ERR "%s: hardware reset timeout\n", cp->dev->name); | |
1037 | } | |
1038 | ||
1039 | static inline void cp_start_hw (struct cp_private *cp) | |
1040 | { | |
1041 | cpw16(CpCmd, cp->cpcmd); | |
1042 | cpw8(Cmd, RxOn | TxOn); | |
1043 | } | |
1044 | ||
1045 | static void cp_init_hw (struct cp_private *cp) | |
1046 | { | |
1047 | struct net_device *dev = cp->dev; | |
1048 | dma_addr_t ring_dma; | |
1049 | ||
1050 | cp_reset_hw(cp); | |
1051 | ||
1052 | cpw8_f (Cfg9346, Cfg9346_Unlock); | |
1053 | ||
1054 | /* Restore our idea of the MAC address. */ | |
1055 | cpw32_f (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); | |
1056 | cpw32_f (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); | |
1057 | ||
1058 | cp_start_hw(cp); | |
1059 | cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */ | |
1060 | ||
1061 | __cp_set_rx_mode(dev); | |
1062 | cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift)); | |
1063 | ||
1064 | cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable); | |
1065 | /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */ | |
1066 | cpw8(Config3, PARMEnable); | |
1067 | cp->wol_enabled = 0; | |
1068 | ||
1069 | cpw8(Config5, cpr8(Config5) & PMEStatus); | |
1070 | ||
1071 | cpw32_f(HiTxRingAddr, 0); | |
1072 | cpw32_f(HiTxRingAddr + 4, 0); | |
1073 | ||
1074 | ring_dma = cp->ring_dma; | |
1075 | cpw32_f(RxRingAddr, ring_dma & 0xffffffff); | |
1076 | cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16); | |
1077 | ||
1078 | ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE; | |
1079 | cpw32_f(TxRingAddr, ring_dma & 0xffffffff); | |
1080 | cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16); | |
1081 | ||
1082 | cpw16(MultiIntr, 0); | |
1083 | ||
1084 | cpw16_f(IntrMask, cp_intr_mask); | |
1085 | ||
1086 | cpw8_f(Cfg9346, Cfg9346_Lock); | |
1087 | } | |
1088 | ||
1089 | static int cp_refill_rx (struct cp_private *cp) | |
1090 | { | |
1091 | unsigned i; | |
1092 | ||
1093 | for (i = 0; i < CP_RX_RING_SIZE; i++) { | |
1094 | struct sk_buff *skb; | |
1095 | ||
1096 | skb = dev_alloc_skb(cp->rx_buf_sz + RX_OFFSET); | |
1097 | if (!skb) | |
1098 | goto err_out; | |
1099 | ||
1100 | skb->dev = cp->dev; | |
1101 | skb_reserve(skb, RX_OFFSET); | |
1102 | ||
1103 | cp->rx_skb[i].mapping = pci_map_single(cp->pdev, | |
1104 | skb->tail, cp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1105 | cp->rx_skb[i].skb = skb; | |
1da177e4 LT |
1106 | |
1107 | cp->rx_ring[i].opts2 = 0; | |
1108 | cp->rx_ring[i].addr = cpu_to_le64(cp->rx_skb[i].mapping); | |
1109 | if (i == (CP_RX_RING_SIZE - 1)) | |
1110 | cp->rx_ring[i].opts1 = | |
1111 | cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz); | |
1112 | else | |
1113 | cp->rx_ring[i].opts1 = | |
1114 | cpu_to_le32(DescOwn | cp->rx_buf_sz); | |
1115 | } | |
1116 | ||
1117 | return 0; | |
1118 | ||
1119 | err_out: | |
1120 | cp_clean_rings(cp); | |
1121 | return -ENOMEM; | |
1122 | } | |
1123 | ||
1124 | static int cp_init_rings (struct cp_private *cp) | |
1125 | { | |
1126 | memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE); | |
1127 | cp->tx_ring[CP_TX_RING_SIZE - 1].opts1 = cpu_to_le32(RingEnd); | |
1128 | ||
1129 | cp->rx_tail = 0; | |
1130 | cp->tx_head = cp->tx_tail = 0; | |
1131 | ||
1132 | return cp_refill_rx (cp); | |
1133 | } | |
1134 | ||
1135 | static int cp_alloc_rings (struct cp_private *cp) | |
1136 | { | |
1137 | void *mem; | |
1138 | ||
1139 | mem = pci_alloc_consistent(cp->pdev, CP_RING_BYTES, &cp->ring_dma); | |
1140 | if (!mem) | |
1141 | return -ENOMEM; | |
1142 | ||
1143 | cp->rx_ring = mem; | |
1144 | cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE]; | |
1145 | ||
1146 | mem += (CP_RING_BYTES - CP_STATS_SIZE); | |
1147 | cp->nic_stats = mem; | |
1148 | cp->nic_stats_dma = cp->ring_dma + (CP_RING_BYTES - CP_STATS_SIZE); | |
1149 | ||
1150 | return cp_init_rings(cp); | |
1151 | } | |
1152 | ||
1153 | static void cp_clean_rings (struct cp_private *cp) | |
1154 | { | |
1155 | unsigned i; | |
1156 | ||
1da177e4 LT |
1157 | for (i = 0; i < CP_RX_RING_SIZE; i++) { |
1158 | if (cp->rx_skb[i].skb) { | |
1159 | pci_unmap_single(cp->pdev, cp->rx_skb[i].mapping, | |
1160 | cp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1161 | dev_kfree_skb(cp->rx_skb[i].skb); | |
1162 | } | |
1163 | } | |
1164 | ||
1165 | for (i = 0; i < CP_TX_RING_SIZE; i++) { | |
1166 | if (cp->tx_skb[i].skb) { | |
1167 | struct sk_buff *skb = cp->tx_skb[i].skb; | |
5734418d | 1168 | |
1da177e4 | 1169 | pci_unmap_single(cp->pdev, cp->tx_skb[i].mapping, |
5734418d FR |
1170 | cp->tx_skb[i].len, PCI_DMA_TODEVICE); |
1171 | if (le32_to_cpu(cp->tx_ring[i].opts1) & LastFrag) | |
1172 | dev_kfree_skb(skb); | |
1da177e4 LT |
1173 | cp->net_stats.tx_dropped++; |
1174 | } | |
1175 | } | |
1176 | ||
5734418d FR |
1177 | memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE); |
1178 | memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE); | |
1179 | ||
1da177e4 LT |
1180 | memset(&cp->rx_skb, 0, sizeof(struct ring_info) * CP_RX_RING_SIZE); |
1181 | memset(&cp->tx_skb, 0, sizeof(struct ring_info) * CP_TX_RING_SIZE); | |
1182 | } | |
1183 | ||
1184 | static void cp_free_rings (struct cp_private *cp) | |
1185 | { | |
1186 | cp_clean_rings(cp); | |
1187 | pci_free_consistent(cp->pdev, CP_RING_BYTES, cp->rx_ring, cp->ring_dma); | |
1188 | cp->rx_ring = NULL; | |
1189 | cp->tx_ring = NULL; | |
1190 | cp->nic_stats = NULL; | |
1191 | } | |
1192 | ||
1193 | static int cp_open (struct net_device *dev) | |
1194 | { | |
1195 | struct cp_private *cp = netdev_priv(dev); | |
1196 | int rc; | |
1197 | ||
1198 | if (netif_msg_ifup(cp)) | |
1199 | printk(KERN_DEBUG "%s: enabling interface\n", dev->name); | |
1200 | ||
1201 | rc = cp_alloc_rings(cp); | |
1202 | if (rc) | |
1203 | return rc; | |
1204 | ||
1205 | cp_init_hw(cp); | |
1206 | ||
1207 | rc = request_irq(dev->irq, cp_interrupt, SA_SHIRQ, dev->name, dev); | |
1208 | if (rc) | |
1209 | goto err_out_hw; | |
1210 | ||
1211 | netif_carrier_off(dev); | |
1212 | mii_check_media(&cp->mii_if, netif_msg_link(cp), TRUE); | |
1213 | netif_start_queue(dev); | |
1214 | ||
1215 | return 0; | |
1216 | ||
1217 | err_out_hw: | |
1218 | cp_stop_hw(cp); | |
1219 | cp_free_rings(cp); | |
1220 | return rc; | |
1221 | } | |
1222 | ||
1223 | static int cp_close (struct net_device *dev) | |
1224 | { | |
1225 | struct cp_private *cp = netdev_priv(dev); | |
1226 | unsigned long flags; | |
1227 | ||
1228 | if (netif_msg_ifdown(cp)) | |
1229 | printk(KERN_DEBUG "%s: disabling interface\n", dev->name); | |
1230 | ||
1231 | spin_lock_irqsave(&cp->lock, flags); | |
1232 | ||
1233 | netif_stop_queue(dev); | |
1234 | netif_carrier_off(dev); | |
1235 | ||
1236 | cp_stop_hw(cp); | |
1237 | ||
1238 | spin_unlock_irqrestore(&cp->lock, flags); | |
1239 | ||
1240 | synchronize_irq(dev->irq); | |
1241 | free_irq(dev->irq, dev); | |
1242 | ||
1243 | cp_free_rings(cp); | |
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | #ifdef BROKEN | |
1248 | static int cp_change_mtu(struct net_device *dev, int new_mtu) | |
1249 | { | |
1250 | struct cp_private *cp = netdev_priv(dev); | |
1251 | int rc; | |
1252 | unsigned long flags; | |
1253 | ||
1254 | /* check for invalid MTU, according to hardware limits */ | |
1255 | if (new_mtu < CP_MIN_MTU || new_mtu > CP_MAX_MTU) | |
1256 | return -EINVAL; | |
1257 | ||
1258 | /* if network interface not up, no need for complexity */ | |
1259 | if (!netif_running(dev)) { | |
1260 | dev->mtu = new_mtu; | |
1261 | cp_set_rxbufsize(cp); /* set new rx buf size */ | |
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | spin_lock_irqsave(&cp->lock, flags); | |
1266 | ||
1267 | cp_stop_hw(cp); /* stop h/w and free rings */ | |
1268 | cp_clean_rings(cp); | |
1269 | ||
1270 | dev->mtu = new_mtu; | |
1271 | cp_set_rxbufsize(cp); /* set new rx buf size */ | |
1272 | ||
1273 | rc = cp_init_rings(cp); /* realloc and restart h/w */ | |
1274 | cp_start_hw(cp); | |
1275 | ||
1276 | spin_unlock_irqrestore(&cp->lock, flags); | |
1277 | ||
1278 | return rc; | |
1279 | } | |
1280 | #endif /* BROKEN */ | |
1281 | ||
1282 | static char mii_2_8139_map[8] = { | |
1283 | BasicModeCtrl, | |
1284 | BasicModeStatus, | |
1285 | 0, | |
1286 | 0, | |
1287 | NWayAdvert, | |
1288 | NWayLPAR, | |
1289 | NWayExpansion, | |
1290 | 0 | |
1291 | }; | |
1292 | ||
1293 | static int mdio_read(struct net_device *dev, int phy_id, int location) | |
1294 | { | |
1295 | struct cp_private *cp = netdev_priv(dev); | |
1296 | ||
1297 | return location < 8 && mii_2_8139_map[location] ? | |
1298 | readw(cp->regs + mii_2_8139_map[location]) : 0; | |
1299 | } | |
1300 | ||
1301 | ||
1302 | static void mdio_write(struct net_device *dev, int phy_id, int location, | |
1303 | int value) | |
1304 | { | |
1305 | struct cp_private *cp = netdev_priv(dev); | |
1306 | ||
1307 | if (location == 0) { | |
1308 | cpw8(Cfg9346, Cfg9346_Unlock); | |
1309 | cpw16(BasicModeCtrl, value); | |
1310 | cpw8(Cfg9346, Cfg9346_Lock); | |
1311 | } else if (location < 8 && mii_2_8139_map[location]) | |
1312 | cpw16(mii_2_8139_map[location], value); | |
1313 | } | |
1314 | ||
1315 | /* Set the ethtool Wake-on-LAN settings */ | |
1316 | static int netdev_set_wol (struct cp_private *cp, | |
1317 | const struct ethtool_wolinfo *wol) | |
1318 | { | |
1319 | u8 options; | |
1320 | ||
1321 | options = cpr8 (Config3) & ~(LinkUp | MagicPacket); | |
1322 | /* If WOL is being disabled, no need for complexity */ | |
1323 | if (wol->wolopts) { | |
1324 | if (wol->wolopts & WAKE_PHY) options |= LinkUp; | |
1325 | if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket; | |
1326 | } | |
1327 | ||
1328 | cpw8 (Cfg9346, Cfg9346_Unlock); | |
1329 | cpw8 (Config3, options); | |
1330 | cpw8 (Cfg9346, Cfg9346_Lock); | |
1331 | ||
1332 | options = 0; /* Paranoia setting */ | |
1333 | options = cpr8 (Config5) & ~(UWF | MWF | BWF); | |
1334 | /* If WOL is being disabled, no need for complexity */ | |
1335 | if (wol->wolopts) { | |
1336 | if (wol->wolopts & WAKE_UCAST) options |= UWF; | |
1337 | if (wol->wolopts & WAKE_BCAST) options |= BWF; | |
1338 | if (wol->wolopts & WAKE_MCAST) options |= MWF; | |
1339 | } | |
1340 | ||
1341 | cpw8 (Config5, options); | |
1342 | ||
1343 | cp->wol_enabled = (wol->wolopts) ? 1 : 0; | |
1344 | ||
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | /* Get the ethtool Wake-on-LAN settings */ | |
1349 | static void netdev_get_wol (struct cp_private *cp, | |
1350 | struct ethtool_wolinfo *wol) | |
1351 | { | |
1352 | u8 options; | |
1353 | ||
1354 | wol->wolopts = 0; /* Start from scratch */ | |
1355 | wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC | | |
1356 | WAKE_MCAST | WAKE_UCAST; | |
1357 | /* We don't need to go on if WOL is disabled */ | |
1358 | if (!cp->wol_enabled) return; | |
1359 | ||
1360 | options = cpr8 (Config3); | |
1361 | if (options & LinkUp) wol->wolopts |= WAKE_PHY; | |
1362 | if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC; | |
1363 | ||
1364 | options = 0; /* Paranoia setting */ | |
1365 | options = cpr8 (Config5); | |
1366 | if (options & UWF) wol->wolopts |= WAKE_UCAST; | |
1367 | if (options & BWF) wol->wolopts |= WAKE_BCAST; | |
1368 | if (options & MWF) wol->wolopts |= WAKE_MCAST; | |
1369 | } | |
1370 | ||
1371 | static void cp_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info) | |
1372 | { | |
1373 | struct cp_private *cp = netdev_priv(dev); | |
1374 | ||
1375 | strcpy (info->driver, DRV_NAME); | |
1376 | strcpy (info->version, DRV_VERSION); | |
1377 | strcpy (info->bus_info, pci_name(cp->pdev)); | |
1378 | } | |
1379 | ||
1380 | static int cp_get_regs_len(struct net_device *dev) | |
1381 | { | |
1382 | return CP_REGS_SIZE; | |
1383 | } | |
1384 | ||
1385 | static int cp_get_stats_count (struct net_device *dev) | |
1386 | { | |
1387 | return CP_NUM_STATS; | |
1388 | } | |
1389 | ||
1390 | static int cp_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1391 | { | |
1392 | struct cp_private *cp = netdev_priv(dev); | |
1393 | int rc; | |
1394 | unsigned long flags; | |
1395 | ||
1396 | spin_lock_irqsave(&cp->lock, flags); | |
1397 | rc = mii_ethtool_gset(&cp->mii_if, cmd); | |
1398 | spin_unlock_irqrestore(&cp->lock, flags); | |
1399 | ||
1400 | return rc; | |
1401 | } | |
1402 | ||
1403 | static int cp_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1404 | { | |
1405 | struct cp_private *cp = netdev_priv(dev); | |
1406 | int rc; | |
1407 | unsigned long flags; | |
1408 | ||
1409 | spin_lock_irqsave(&cp->lock, flags); | |
1410 | rc = mii_ethtool_sset(&cp->mii_if, cmd); | |
1411 | spin_unlock_irqrestore(&cp->lock, flags); | |
1412 | ||
1413 | return rc; | |
1414 | } | |
1415 | ||
1416 | static int cp_nway_reset(struct net_device *dev) | |
1417 | { | |
1418 | struct cp_private *cp = netdev_priv(dev); | |
1419 | return mii_nway_restart(&cp->mii_if); | |
1420 | } | |
1421 | ||
1422 | static u32 cp_get_msglevel(struct net_device *dev) | |
1423 | { | |
1424 | struct cp_private *cp = netdev_priv(dev); | |
1425 | return cp->msg_enable; | |
1426 | } | |
1427 | ||
1428 | static void cp_set_msglevel(struct net_device *dev, u32 value) | |
1429 | { | |
1430 | struct cp_private *cp = netdev_priv(dev); | |
1431 | cp->msg_enable = value; | |
1432 | } | |
1433 | ||
1434 | static u32 cp_get_rx_csum(struct net_device *dev) | |
1435 | { | |
1436 | struct cp_private *cp = netdev_priv(dev); | |
1437 | return (cpr16(CpCmd) & RxChkSum) ? 1 : 0; | |
1438 | } | |
1439 | ||
1440 | static int cp_set_rx_csum(struct net_device *dev, u32 data) | |
1441 | { | |
1442 | struct cp_private *cp = netdev_priv(dev); | |
1443 | u16 cmd = cp->cpcmd, newcmd; | |
1444 | ||
1445 | newcmd = cmd; | |
1446 | ||
1447 | if (data) | |
1448 | newcmd |= RxChkSum; | |
1449 | else | |
1450 | newcmd &= ~RxChkSum; | |
1451 | ||
1452 | if (newcmd != cmd) { | |
1453 | unsigned long flags; | |
1454 | ||
1455 | spin_lock_irqsave(&cp->lock, flags); | |
1456 | cp->cpcmd = newcmd; | |
1457 | cpw16_f(CpCmd, newcmd); | |
1458 | spin_unlock_irqrestore(&cp->lock, flags); | |
1459 | } | |
1460 | ||
1461 | return 0; | |
1462 | } | |
1463 | ||
1464 | static void cp_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1465 | void *p) | |
1466 | { | |
1467 | struct cp_private *cp = netdev_priv(dev); | |
1468 | unsigned long flags; | |
1469 | ||
1470 | if (regs->len < CP_REGS_SIZE) | |
1471 | return /* -EINVAL */; | |
1472 | ||
1473 | regs->version = CP_REGS_VER; | |
1474 | ||
1475 | spin_lock_irqsave(&cp->lock, flags); | |
1476 | memcpy_fromio(p, cp->regs, CP_REGS_SIZE); | |
1477 | spin_unlock_irqrestore(&cp->lock, flags); | |
1478 | } | |
1479 | ||
1480 | static void cp_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol) | |
1481 | { | |
1482 | struct cp_private *cp = netdev_priv(dev); | |
1483 | unsigned long flags; | |
1484 | ||
1485 | spin_lock_irqsave (&cp->lock, flags); | |
1486 | netdev_get_wol (cp, wol); | |
1487 | spin_unlock_irqrestore (&cp->lock, flags); | |
1488 | } | |
1489 | ||
1490 | static int cp_set_wol (struct net_device *dev, struct ethtool_wolinfo *wol) | |
1491 | { | |
1492 | struct cp_private *cp = netdev_priv(dev); | |
1493 | unsigned long flags; | |
1494 | int rc; | |
1495 | ||
1496 | spin_lock_irqsave (&cp->lock, flags); | |
1497 | rc = netdev_set_wol (cp, wol); | |
1498 | spin_unlock_irqrestore (&cp->lock, flags); | |
1499 | ||
1500 | return rc; | |
1501 | } | |
1502 | ||
1503 | static void cp_get_strings (struct net_device *dev, u32 stringset, u8 *buf) | |
1504 | { | |
1505 | switch (stringset) { | |
1506 | case ETH_SS_STATS: | |
1507 | memcpy(buf, ðtool_stats_keys, sizeof(ethtool_stats_keys)); | |
1508 | break; | |
1509 | default: | |
1510 | BUG(); | |
1511 | break; | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | static void cp_get_ethtool_stats (struct net_device *dev, | |
1516 | struct ethtool_stats *estats, u64 *tmp_stats) | |
1517 | { | |
1518 | struct cp_private *cp = netdev_priv(dev); | |
1da177e4 LT |
1519 | int i; |
1520 | ||
97f568d8 SH |
1521 | memset(cp->nic_stats, 0, sizeof(struct cp_dma_stats)); |
1522 | ||
1da177e4 LT |
1523 | /* begin NIC statistics dump */ |
1524 | cpw32(StatsAddr + 4, (cp->nic_stats_dma >> 16) >> 16); | |
1525 | cpw32(StatsAddr, (cp->nic_stats_dma & 0xffffffff) | DumpStats); | |
1526 | cpr32(StatsAddr); | |
1527 | ||
97f568d8 | 1528 | for (i = 0; i < 1000; i++) { |
1da177e4 LT |
1529 | if ((cpr32(StatsAddr) & DumpStats) == 0) |
1530 | break; | |
97f568d8 | 1531 | udelay(10); |
1da177e4 | 1532 | } |
97f568d8 SH |
1533 | cpw32(StatsAddr, 0); |
1534 | cpw32(StatsAddr + 4, 0); | |
1da177e4 LT |
1535 | |
1536 | i = 0; | |
1537 | tmp_stats[i++] = le64_to_cpu(cp->nic_stats->tx_ok); | |
1538 | tmp_stats[i++] = le64_to_cpu(cp->nic_stats->rx_ok); | |
1539 | tmp_stats[i++] = le64_to_cpu(cp->nic_stats->tx_err); | |
1540 | tmp_stats[i++] = le32_to_cpu(cp->nic_stats->rx_err); | |
1541 | tmp_stats[i++] = le16_to_cpu(cp->nic_stats->rx_fifo); | |
1542 | tmp_stats[i++] = le16_to_cpu(cp->nic_stats->frame_align); | |
1543 | tmp_stats[i++] = le32_to_cpu(cp->nic_stats->tx_ok_1col); | |
1544 | tmp_stats[i++] = le32_to_cpu(cp->nic_stats->tx_ok_mcol); | |
1545 | tmp_stats[i++] = le64_to_cpu(cp->nic_stats->rx_ok_phys); | |
1546 | tmp_stats[i++] = le64_to_cpu(cp->nic_stats->rx_ok_bcast); | |
1547 | tmp_stats[i++] = le32_to_cpu(cp->nic_stats->rx_ok_mcast); | |
1548 | tmp_stats[i++] = le16_to_cpu(cp->nic_stats->tx_abort); | |
1549 | tmp_stats[i++] = le16_to_cpu(cp->nic_stats->tx_underrun); | |
1550 | tmp_stats[i++] = cp->cp_stats.rx_frags; | |
1551 | if (i != CP_NUM_STATS) | |
1552 | BUG(); | |
1553 | } | |
1554 | ||
1555 | static struct ethtool_ops cp_ethtool_ops = { | |
1556 | .get_drvinfo = cp_get_drvinfo, | |
1557 | .get_regs_len = cp_get_regs_len, | |
1558 | .get_stats_count = cp_get_stats_count, | |
1559 | .get_settings = cp_get_settings, | |
1560 | .set_settings = cp_set_settings, | |
1561 | .nway_reset = cp_nway_reset, | |
1562 | .get_link = ethtool_op_get_link, | |
1563 | .get_msglevel = cp_get_msglevel, | |
1564 | .set_msglevel = cp_set_msglevel, | |
1565 | .get_rx_csum = cp_get_rx_csum, | |
1566 | .set_rx_csum = cp_set_rx_csum, | |
1567 | .get_tx_csum = ethtool_op_get_tx_csum, | |
1568 | .set_tx_csum = ethtool_op_set_tx_csum, /* local! */ | |
1569 | .get_sg = ethtool_op_get_sg, | |
1570 | .set_sg = ethtool_op_set_sg, | |
fcec3456 JG |
1571 | .get_tso = ethtool_op_get_tso, |
1572 | .set_tso = ethtool_op_set_tso, | |
1da177e4 LT |
1573 | .get_regs = cp_get_regs, |
1574 | .get_wol = cp_get_wol, | |
1575 | .set_wol = cp_set_wol, | |
1576 | .get_strings = cp_get_strings, | |
1577 | .get_ethtool_stats = cp_get_ethtool_stats, | |
1578 | }; | |
1579 | ||
1580 | static int cp_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) | |
1581 | { | |
1582 | struct cp_private *cp = netdev_priv(dev); | |
1583 | int rc; | |
1584 | unsigned long flags; | |
1585 | ||
1586 | if (!netif_running(dev)) | |
1587 | return -EINVAL; | |
1588 | ||
1589 | spin_lock_irqsave(&cp->lock, flags); | |
1590 | rc = generic_mii_ioctl(&cp->mii_if, if_mii(rq), cmd, NULL); | |
1591 | spin_unlock_irqrestore(&cp->lock, flags); | |
1592 | return rc; | |
1593 | } | |
1594 | ||
1595 | /* Serial EEPROM section. */ | |
1596 | ||
1597 | /* EEPROM_Ctrl bits. */ | |
1598 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ | |
1599 | #define EE_CS 0x08 /* EEPROM chip select. */ | |
1600 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ | |
1601 | #define EE_WRITE_0 0x00 | |
1602 | #define EE_WRITE_1 0x02 | |
1603 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ | |
1604 | #define EE_ENB (0x80 | EE_CS) | |
1605 | ||
1606 | /* Delay between EEPROM clock transitions. | |
1607 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. | |
1608 | */ | |
1609 | ||
1610 | #define eeprom_delay() readl(ee_addr) | |
1611 | ||
1612 | /* The EEPROM commands include the alway-set leading bit. */ | |
1613 | #define EE_WRITE_CMD (5) | |
1614 | #define EE_READ_CMD (6) | |
1615 | #define EE_ERASE_CMD (7) | |
1616 | ||
1617 | static int read_eeprom (void __iomem *ioaddr, int location, int addr_len) | |
1618 | { | |
1619 | int i; | |
1620 | unsigned retval = 0; | |
1621 | void __iomem *ee_addr = ioaddr + Cfg9346; | |
1622 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1623 | ||
1624 | writeb (EE_ENB & ~EE_CS, ee_addr); | |
1625 | writeb (EE_ENB, ee_addr); | |
1626 | eeprom_delay (); | |
1627 | ||
1628 | /* Shift the read command bits out. */ | |
1629 | for (i = 4 + addr_len; i >= 0; i--) { | |
1630 | int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1631 | writeb (EE_ENB | dataval, ee_addr); | |
1632 | eeprom_delay (); | |
1633 | writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1634 | eeprom_delay (); | |
1635 | } | |
1636 | writeb (EE_ENB, ee_addr); | |
1637 | eeprom_delay (); | |
1638 | ||
1639 | for (i = 16; i > 0; i--) { | |
1640 | writeb (EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1641 | eeprom_delay (); | |
1642 | retval = | |
1643 | (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 : | |
1644 | 0); | |
1645 | writeb (EE_ENB, ee_addr); | |
1646 | eeprom_delay (); | |
1647 | } | |
1648 | ||
1649 | /* Terminate the EEPROM access. */ | |
1650 | writeb (~EE_CS, ee_addr); | |
1651 | eeprom_delay (); | |
1652 | ||
1653 | return retval; | |
1654 | } | |
1655 | ||
1656 | /* Put the board into D3cold state and wait for WakeUp signal */ | |
1657 | static void cp_set_d3_state (struct cp_private *cp) | |
1658 | { | |
1659 | pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */ | |
1660 | pci_set_power_state (cp->pdev, PCI_D3hot); | |
1661 | } | |
1662 | ||
1663 | static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) | |
1664 | { | |
1665 | struct net_device *dev; | |
1666 | struct cp_private *cp; | |
1667 | int rc; | |
1668 | void __iomem *regs; | |
1669 | long pciaddr; | |
1670 | unsigned int addr_len, i, pci_using_dac; | |
1671 | u8 pci_rev; | |
1672 | ||
1673 | #ifndef MODULE | |
1674 | static int version_printed; | |
1675 | if (version_printed++ == 0) | |
1676 | printk("%s", version); | |
1677 | #endif | |
1678 | ||
1679 | pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev); | |
1680 | ||
1681 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && | |
1682 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev < 0x20) { | |
1683 | printk(KERN_ERR PFX "pci dev %s (id %04x:%04x rev %02x) is not an 8139C+ compatible chip\n", | |
1684 | pci_name(pdev), pdev->vendor, pdev->device, pci_rev); | |
1685 | printk(KERN_ERR PFX "Try the \"8139too\" driver instead.\n"); | |
1686 | return -ENODEV; | |
1687 | } | |
1688 | ||
1689 | dev = alloc_etherdev(sizeof(struct cp_private)); | |
1690 | if (!dev) | |
1691 | return -ENOMEM; | |
1692 | SET_MODULE_OWNER(dev); | |
1693 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1694 | ||
1695 | cp = netdev_priv(dev); | |
1696 | cp->pdev = pdev; | |
1697 | cp->dev = dev; | |
1698 | cp->msg_enable = (debug < 0 ? CP_DEF_MSG_ENABLE : debug); | |
1699 | spin_lock_init (&cp->lock); | |
1700 | cp->mii_if.dev = dev; | |
1701 | cp->mii_if.mdio_read = mdio_read; | |
1702 | cp->mii_if.mdio_write = mdio_write; | |
1703 | cp->mii_if.phy_id = CP_INTERNAL_PHY; | |
1704 | cp->mii_if.phy_id_mask = 0x1f; | |
1705 | cp->mii_if.reg_num_mask = 0x1f; | |
1706 | cp_set_rxbufsize(cp); | |
1707 | ||
1708 | rc = pci_enable_device(pdev); | |
1709 | if (rc) | |
1710 | goto err_out_free; | |
1711 | ||
1712 | rc = pci_set_mwi(pdev); | |
1713 | if (rc) | |
1714 | goto err_out_disable; | |
1715 | ||
1716 | rc = pci_request_regions(pdev, DRV_NAME); | |
1717 | if (rc) | |
1718 | goto err_out_mwi; | |
1719 | ||
1720 | pciaddr = pci_resource_start(pdev, 1); | |
1721 | if (!pciaddr) { | |
1722 | rc = -EIO; | |
1723 | printk(KERN_ERR PFX "no MMIO resource for pci dev %s\n", | |
1724 | pci_name(pdev)); | |
1725 | goto err_out_res; | |
1726 | } | |
1727 | if (pci_resource_len(pdev, 1) < CP_REGS_SIZE) { | |
1728 | rc = -EIO; | |
1729 | printk(KERN_ERR PFX "MMIO resource (%lx) too small on pci dev %s\n", | |
1730 | pci_resource_len(pdev, 1), pci_name(pdev)); | |
1731 | goto err_out_res; | |
1732 | } | |
1733 | ||
1734 | /* Configure DMA attributes. */ | |
1735 | if ((sizeof(dma_addr_t) > 4) && | |
8662d061 TK |
1736 | !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) && |
1737 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { | |
1da177e4 LT |
1738 | pci_using_dac = 1; |
1739 | } else { | |
1740 | pci_using_dac = 0; | |
1741 | ||
8662d061 | 1742 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 LT |
1743 | if (rc) { |
1744 | printk(KERN_ERR PFX "No usable DMA configuration, " | |
1745 | "aborting.\n"); | |
1746 | goto err_out_res; | |
1747 | } | |
8662d061 | 1748 | rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 LT |
1749 | if (rc) { |
1750 | printk(KERN_ERR PFX "No usable consistent DMA configuration, " | |
1751 | "aborting.\n"); | |
1752 | goto err_out_res; | |
1753 | } | |
1754 | } | |
1755 | ||
1756 | cp->cpcmd = (pci_using_dac ? PCIDAC : 0) | | |
1757 | PCIMulRW | RxChkSum | CpRxOn | CpTxOn; | |
1758 | ||
1759 | regs = ioremap(pciaddr, CP_REGS_SIZE); | |
1760 | if (!regs) { | |
1761 | rc = -EIO; | |
1762 | printk(KERN_ERR PFX "Cannot map PCI MMIO (%lx@%lx) on pci dev %s\n", | |
1763 | pci_resource_len(pdev, 1), pciaddr, pci_name(pdev)); | |
1764 | goto err_out_res; | |
1765 | } | |
1766 | dev->base_addr = (unsigned long) regs; | |
1767 | cp->regs = regs; | |
1768 | ||
1769 | cp_stop_hw(cp); | |
1770 | ||
1771 | /* read MAC address from EEPROM */ | |
1772 | addr_len = read_eeprom (regs, 0, 8) == 0x8129 ? 8 : 6; | |
1773 | for (i = 0; i < 3; i++) | |
1774 | ((u16 *) (dev->dev_addr))[i] = | |
1775 | le16_to_cpu (read_eeprom (regs, i + 7, addr_len)); | |
1776 | ||
1777 | dev->open = cp_open; | |
1778 | dev->stop = cp_close; | |
1779 | dev->set_multicast_list = cp_set_rx_mode; | |
1780 | dev->hard_start_xmit = cp_start_xmit; | |
1781 | dev->get_stats = cp_get_stats; | |
1782 | dev->do_ioctl = cp_ioctl; | |
1783 | dev->poll = cp_rx_poll; | |
7502cd10 SK |
1784 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1785 | dev->poll_controller = cp_poll_controller; | |
1786 | #endif | |
1da177e4 LT |
1787 | dev->weight = 16; /* arbitrary? from NAPI_HOWTO.txt. */ |
1788 | #ifdef BROKEN | |
1789 | dev->change_mtu = cp_change_mtu; | |
1790 | #endif | |
1791 | dev->ethtool_ops = &cp_ethtool_ops; | |
1792 | #if 0 | |
1793 | dev->tx_timeout = cp_tx_timeout; | |
1794 | dev->watchdog_timeo = TX_TIMEOUT; | |
1795 | #endif | |
1796 | ||
1797 | #if CP_VLAN_TAG_USED | |
1798 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1799 | dev->vlan_rx_register = cp_vlan_rx_register; | |
1800 | dev->vlan_rx_kill_vid = cp_vlan_rx_kill_vid; | |
1801 | #endif | |
1802 | ||
1803 | if (pci_using_dac) | |
1804 | dev->features |= NETIF_F_HIGHDMA; | |
1805 | ||
fcec3456 JG |
1806 | #if 0 /* disabled by default until verified */ |
1807 | dev->features |= NETIF_F_TSO; | |
1808 | #endif | |
1809 | ||
1da177e4 LT |
1810 | dev->irq = pdev->irq; |
1811 | ||
1812 | rc = register_netdev(dev); | |
1813 | if (rc) | |
1814 | goto err_out_iomap; | |
1815 | ||
1816 | printk (KERN_INFO "%s: RTL-8139C+ at 0x%lx, " | |
1817 | "%02x:%02x:%02x:%02x:%02x:%02x, " | |
1818 | "IRQ %d\n", | |
1819 | dev->name, | |
1820 | dev->base_addr, | |
1821 | dev->dev_addr[0], dev->dev_addr[1], | |
1822 | dev->dev_addr[2], dev->dev_addr[3], | |
1823 | dev->dev_addr[4], dev->dev_addr[5], | |
1824 | dev->irq); | |
1825 | ||
1826 | pci_set_drvdata(pdev, dev); | |
1827 | ||
1828 | /* enable busmastering and memory-write-invalidate */ | |
1829 | pci_set_master(pdev); | |
1830 | ||
1831 | if (cp->wol_enabled) cp_set_d3_state (cp); | |
1832 | ||
1833 | return 0; | |
1834 | ||
1835 | err_out_iomap: | |
1836 | iounmap(regs); | |
1837 | err_out_res: | |
1838 | pci_release_regions(pdev); | |
1839 | err_out_mwi: | |
1840 | pci_clear_mwi(pdev); | |
1841 | err_out_disable: | |
1842 | pci_disable_device(pdev); | |
1843 | err_out_free: | |
1844 | free_netdev(dev); | |
1845 | return rc; | |
1846 | } | |
1847 | ||
1848 | static void cp_remove_one (struct pci_dev *pdev) | |
1849 | { | |
1850 | struct net_device *dev = pci_get_drvdata(pdev); | |
1851 | struct cp_private *cp = netdev_priv(dev); | |
1852 | ||
1853 | if (!dev) | |
1854 | BUG(); | |
1855 | unregister_netdev(dev); | |
1856 | iounmap(cp->regs); | |
1857 | if (cp->wol_enabled) pci_set_power_state (pdev, PCI_D0); | |
1858 | pci_release_regions(pdev); | |
1859 | pci_clear_mwi(pdev); | |
1860 | pci_disable_device(pdev); | |
1861 | pci_set_drvdata(pdev, NULL); | |
1862 | free_netdev(dev); | |
1863 | } | |
1864 | ||
1865 | #ifdef CONFIG_PM | |
05adc3b7 | 1866 | static int cp_suspend (struct pci_dev *pdev, pm_message_t state) |
1da177e4 LT |
1867 | { |
1868 | struct net_device *dev; | |
1869 | struct cp_private *cp; | |
1870 | unsigned long flags; | |
1871 | ||
1872 | dev = pci_get_drvdata (pdev); | |
1873 | cp = netdev_priv(dev); | |
1874 | ||
1875 | if (!dev || !netif_running (dev)) return 0; | |
1876 | ||
1877 | netif_device_detach (dev); | |
1878 | netif_stop_queue (dev); | |
1879 | ||
1880 | spin_lock_irqsave (&cp->lock, flags); | |
1881 | ||
1882 | /* Disable Rx and Tx */ | |
1883 | cpw16 (IntrMask, 0); | |
1884 | cpw8 (Cmd, cpr8 (Cmd) & (~RxOn | ~TxOn)); | |
1885 | ||
1886 | spin_unlock_irqrestore (&cp->lock, flags); | |
1887 | ||
1888 | if (cp->pdev && cp->wol_enabled) { | |
1889 | pci_save_state (cp->pdev); | |
1890 | cp_set_d3_state (cp); | |
1891 | } | |
1892 | ||
1893 | return 0; | |
1894 | } | |
1895 | ||
1896 | static int cp_resume (struct pci_dev *pdev) | |
1897 | { | |
1898 | struct net_device *dev; | |
1899 | struct cp_private *cp; | |
1900 | ||
1901 | dev = pci_get_drvdata (pdev); | |
1902 | cp = netdev_priv(dev); | |
1903 | ||
1904 | netif_device_attach (dev); | |
1905 | ||
1906 | if (cp->pdev && cp->wol_enabled) { | |
1907 | pci_set_power_state (cp->pdev, PCI_D0); | |
1908 | pci_restore_state (cp->pdev); | |
1909 | } | |
1910 | ||
1911 | cp_init_hw (cp); | |
1912 | netif_start_queue (dev); | |
1913 | ||
1914 | return 0; | |
1915 | } | |
1916 | #endif /* CONFIG_PM */ | |
1917 | ||
1918 | static struct pci_driver cp_driver = { | |
1919 | .name = DRV_NAME, | |
1920 | .id_table = cp_pci_tbl, | |
1921 | .probe = cp_init_one, | |
1922 | .remove = cp_remove_one, | |
1923 | #ifdef CONFIG_PM | |
1924 | .resume = cp_resume, | |
1925 | .suspend = cp_suspend, | |
1926 | #endif | |
1927 | }; | |
1928 | ||
1929 | static int __init cp_init (void) | |
1930 | { | |
1931 | #ifdef MODULE | |
1932 | printk("%s", version); | |
1933 | #endif | |
1934 | return pci_module_init (&cp_driver); | |
1935 | } | |
1936 | ||
1937 | static void __exit cp_exit (void) | |
1938 | { | |
1939 | pci_unregister_driver (&cp_driver); | |
1940 | } | |
1941 | ||
1942 | module_init(cp_init); | |
1943 | module_exit(cp_exit); |