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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: | |
f3b197ac | 22 | |
1da177e4 LT |
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> | |
f3b197ac | 26 | |
1da177e4 LT |
27 | TODO: |
28 | * Test Tx checksumming thoroughly | |
1da177e4 LT |
29 | |
30 | Low priority TODO: | |
31 | * Complete reset on PciErr | |
32 | * Consider Rx interrupt mitigation using TimerIntr | |
33 | * Investigate using skb->priority with h/w VLAN priority | |
34 | * Investigate using High Priority Tx Queue with skb->priority | |
35 | * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error | |
36 | * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error | |
37 | * Implement Tx software interrupt mitigation via | |
38 | Tx descriptor bit | |
39 | * The real minimum of CP_MIN_MTU is 4 bytes. However, | |
40 | for this to be supported, one must(?) turn on packet padding. | |
41 | * Support external MII transceivers (patch available) | |
42 | ||
43 | NOTES: | |
44 | * TX checksumming is considered experimental. It is off by | |
45 | default, use ethtool to turn it on. | |
46 | ||
47 | */ | |
48 | ||
49 | #define DRV_NAME "8139cp" | |
d5b20697 | 50 | #define DRV_VERSION "1.3" |
1da177e4 LT |
51 | #define DRV_RELDATE "Mar 22, 2004" |
52 | ||
53 | ||
1da177e4 | 54 | #include <linux/module.h> |
e21ba282 | 55 | #include <linux/moduleparam.h> |
1da177e4 LT |
56 | #include <linux/kernel.h> |
57 | #include <linux/compiler.h> | |
58 | #include <linux/netdevice.h> | |
59 | #include <linux/etherdevice.h> | |
60 | #include <linux/init.h> | |
61 | #include <linux/pci.h> | |
8662d061 | 62 | #include <linux/dma-mapping.h> |
1da177e4 LT |
63 | #include <linux/delay.h> |
64 | #include <linux/ethtool.h> | |
65 | #include <linux/mii.h> | |
66 | #include <linux/if_vlan.h> | |
67 | #include <linux/crc32.h> | |
68 | #include <linux/in.h> | |
69 | #include <linux/ip.h> | |
70 | #include <linux/tcp.h> | |
71 | #include <linux/udp.h> | |
72 | #include <linux/cache.h> | |
73 | #include <asm/io.h> | |
74 | #include <asm/irq.h> | |
75 | #include <asm/uaccess.h> | |
76 | ||
77 | /* VLAN tagging feature enable/disable */ | |
78 | #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) | |
79 | #define CP_VLAN_TAG_USED 1 | |
80 | #define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \ | |
cf983019 | 81 | do { (tx_desc)->opts2 = cpu_to_le32(vlan_tag_value); } while (0) |
1da177e4 LT |
82 | #else |
83 | #define CP_VLAN_TAG_USED 0 | |
84 | #define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \ | |
85 | do { (tx_desc)->opts2 = 0; } while (0) | |
86 | #endif | |
87 | ||
88 | /* These identify the driver base version and may not be removed. */ | |
89 | static char version[] = | |
90 | KERN_INFO DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; | |
91 | ||
92 | MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); | |
93 | MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver"); | |
a78d8927 | 94 | MODULE_VERSION(DRV_VERSION); |
1da177e4 LT |
95 | MODULE_LICENSE("GPL"); |
96 | ||
97 | static int debug = -1; | |
e21ba282 | 98 | module_param(debug, int, 0); |
1da177e4 LT |
99 | MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number"); |
100 | ||
101 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
102 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
103 | static int multicast_filter_limit = 32; | |
e21ba282 | 104 | module_param(multicast_filter_limit, int, 0); |
1da177e4 LT |
105 | MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses"); |
106 | ||
107 | #define PFX DRV_NAME ": " | |
108 | ||
1da177e4 LT |
109 | #define CP_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
110 | NETIF_MSG_PROBE | \ | |
111 | NETIF_MSG_LINK) | |
112 | #define CP_NUM_STATS 14 /* struct cp_dma_stats, plus one */ | |
113 | #define CP_STATS_SIZE 64 /* size in bytes of DMA stats block */ | |
114 | #define CP_REGS_SIZE (0xff + 1) | |
115 | #define CP_REGS_VER 1 /* version 1 */ | |
116 | #define CP_RX_RING_SIZE 64 | |
117 | #define CP_TX_RING_SIZE 64 | |
118 | #define CP_RING_BYTES \ | |
119 | ((sizeof(struct cp_desc) * CP_RX_RING_SIZE) + \ | |
120 | (sizeof(struct cp_desc) * CP_TX_RING_SIZE) + \ | |
121 | CP_STATS_SIZE) | |
122 | #define NEXT_TX(N) (((N) + 1) & (CP_TX_RING_SIZE - 1)) | |
123 | #define NEXT_RX(N) (((N) + 1) & (CP_RX_RING_SIZE - 1)) | |
124 | #define TX_BUFFS_AVAIL(CP) \ | |
125 | (((CP)->tx_tail <= (CP)->tx_head) ? \ | |
126 | (CP)->tx_tail + (CP_TX_RING_SIZE - 1) - (CP)->tx_head : \ | |
127 | (CP)->tx_tail - (CP)->tx_head - 1) | |
128 | ||
129 | #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ | |
1da177e4 LT |
130 | #define CP_INTERNAL_PHY 32 |
131 | ||
132 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | |
133 | #define RX_FIFO_THRESH 5 /* Rx buffer level before first PCI xfer. */ | |
134 | #define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 */ | |
135 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
136 | #define TX_EARLY_THRESH 256 /* Early Tx threshold, in bytes */ | |
137 | ||
138 | /* Time in jiffies before concluding the transmitter is hung. */ | |
139 | #define TX_TIMEOUT (6*HZ) | |
140 | ||
141 | /* hardware minimum and maximum for a single frame's data payload */ | |
142 | #define CP_MIN_MTU 60 /* TODO: allow lower, but pad */ | |
143 | #define CP_MAX_MTU 4096 | |
144 | ||
145 | enum { | |
146 | /* NIC register offsets */ | |
147 | MAC0 = 0x00, /* Ethernet hardware address. */ | |
148 | MAR0 = 0x08, /* Multicast filter. */ | |
149 | StatsAddr = 0x10, /* 64-bit start addr of 64-byte DMA stats blk */ | |
150 | TxRingAddr = 0x20, /* 64-bit start addr of Tx ring */ | |
151 | HiTxRingAddr = 0x28, /* 64-bit start addr of high priority Tx ring */ | |
152 | Cmd = 0x37, /* Command register */ | |
153 | IntrMask = 0x3C, /* Interrupt mask */ | |
154 | IntrStatus = 0x3E, /* Interrupt status */ | |
155 | TxConfig = 0x40, /* Tx configuration */ | |
156 | ChipVersion = 0x43, /* 8-bit chip version, inside TxConfig */ | |
157 | RxConfig = 0x44, /* Rx configuration */ | |
158 | RxMissed = 0x4C, /* 24 bits valid, write clears */ | |
159 | Cfg9346 = 0x50, /* EEPROM select/control; Cfg reg [un]lock */ | |
160 | Config1 = 0x52, /* Config1 */ | |
161 | Config3 = 0x59, /* Config3 */ | |
162 | Config4 = 0x5A, /* Config4 */ | |
163 | MultiIntr = 0x5C, /* Multiple interrupt select */ | |
164 | BasicModeCtrl = 0x62, /* MII BMCR */ | |
165 | BasicModeStatus = 0x64, /* MII BMSR */ | |
166 | NWayAdvert = 0x66, /* MII ADVERTISE */ | |
167 | NWayLPAR = 0x68, /* MII LPA */ | |
168 | NWayExpansion = 0x6A, /* MII Expansion */ | |
169 | Config5 = 0xD8, /* Config5 */ | |
170 | TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */ | |
171 | RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */ | |
172 | CpCmd = 0xE0, /* C+ Command register (C+ mode only) */ | |
173 | IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */ | |
174 | RxRingAddr = 0xE4, /* 64-bit start addr of Rx ring */ | |
175 | TxThresh = 0xEC, /* Early Tx threshold */ | |
176 | OldRxBufAddr = 0x30, /* DMA address of Rx ring buffer (C mode) */ | |
177 | OldTSD0 = 0x10, /* DMA address of first Tx desc (C mode) */ | |
178 | ||
179 | /* Tx and Rx status descriptors */ | |
180 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ | |
181 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
182 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
183 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
fcec3456 JG |
184 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ |
185 | MSSShift = 16, /* MSS value position */ | |
186 | MSSMask = 0xfff, /* MSS value: 11 bits */ | |
1da177e4 LT |
187 | TxError = (1 << 23), /* Tx error summary */ |
188 | RxError = (1 << 20), /* Rx error summary */ | |
189 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
190 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
191 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
192 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
193 | RxVlanTagged = (1 << 16), /* Rx VLAN tag available */ | |
194 | IPFail = (1 << 15), /* IP checksum failed */ | |
195 | UDPFail = (1 << 14), /* UDP/IP checksum failed */ | |
196 | TCPFail = (1 << 13), /* TCP/IP checksum failed */ | |
197 | NormalTxPoll = (1 << 6), /* One or more normal Tx packets to send */ | |
198 | PID1 = (1 << 17), /* 2 protocol id bits: 0==non-IP, */ | |
199 | PID0 = (1 << 16), /* 1==UDP/IP, 2==TCP/IP, 3==IP */ | |
200 | RxProtoTCP = 1, | |
201 | RxProtoUDP = 2, | |
202 | RxProtoIP = 3, | |
203 | TxFIFOUnder = (1 << 25), /* Tx FIFO underrun */ | |
204 | TxOWC = (1 << 22), /* Tx Out-of-window collision */ | |
205 | TxLinkFail = (1 << 21), /* Link failed during Tx of packet */ | |
206 | TxMaxCol = (1 << 20), /* Tx aborted due to excessive collisions */ | |
207 | TxColCntShift = 16, /* Shift, to get 4-bit Tx collision cnt */ | |
208 | TxColCntMask = 0x01 | 0x02 | 0x04 | 0x08, /* 4-bit collision count */ | |
209 | RxErrFrame = (1 << 27), /* Rx frame alignment error */ | |
210 | RxMcast = (1 << 26), /* Rx multicast packet rcv'd */ | |
211 | RxErrCRC = (1 << 18), /* Rx CRC error */ | |
212 | RxErrRunt = (1 << 19), /* Rx error, packet < 64 bytes */ | |
213 | RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */ | |
214 | RxErrFIFO = (1 << 22), /* Rx error, FIFO overflowed, pkt bad */ | |
215 | ||
216 | /* StatsAddr register */ | |
217 | DumpStats = (1 << 3), /* Begin stats dump */ | |
218 | ||
219 | /* RxConfig register */ | |
220 | RxCfgFIFOShift = 13, /* Shift, to get Rx FIFO thresh value */ | |
221 | RxCfgDMAShift = 8, /* Shift, to get Rx Max DMA value */ | |
222 | AcceptErr = 0x20, /* Accept packets with CRC errors */ | |
223 | AcceptRunt = 0x10, /* Accept runt (<64 bytes) packets */ | |
224 | AcceptBroadcast = 0x08, /* Accept broadcast packets */ | |
225 | AcceptMulticast = 0x04, /* Accept multicast packets */ | |
226 | AcceptMyPhys = 0x02, /* Accept pkts with our MAC as dest */ | |
227 | AcceptAllPhys = 0x01, /* Accept all pkts w/ physical dest */ | |
228 | ||
229 | /* IntrMask / IntrStatus registers */ | |
230 | PciErr = (1 << 15), /* System error on the PCI bus */ | |
231 | TimerIntr = (1 << 14), /* Asserted when TCTR reaches TimerInt value */ | |
232 | LenChg = (1 << 13), /* Cable length change */ | |
233 | SWInt = (1 << 8), /* Software-requested interrupt */ | |
234 | TxEmpty = (1 << 7), /* No Tx descriptors available */ | |
235 | RxFIFOOvr = (1 << 6), /* Rx FIFO Overflow */ | |
236 | LinkChg = (1 << 5), /* Packet underrun, or link change */ | |
237 | RxEmpty = (1 << 4), /* No Rx descriptors available */ | |
238 | TxErr = (1 << 3), /* Tx error */ | |
239 | TxOK = (1 << 2), /* Tx packet sent */ | |
240 | RxErr = (1 << 1), /* Rx error */ | |
241 | RxOK = (1 << 0), /* Rx packet received */ | |
242 | IntrResvd = (1 << 10), /* reserved, according to RealTek engineers, | |
243 | but hardware likes to raise it */ | |
244 | ||
245 | IntrAll = PciErr | TimerIntr | LenChg | SWInt | TxEmpty | | |
246 | RxFIFOOvr | LinkChg | RxEmpty | TxErr | TxOK | | |
247 | RxErr | RxOK | IntrResvd, | |
248 | ||
249 | /* C mode command register */ | |
250 | CmdReset = (1 << 4), /* Enable to reset; self-clearing */ | |
251 | RxOn = (1 << 3), /* Rx mode enable */ | |
252 | TxOn = (1 << 2), /* Tx mode enable */ | |
253 | ||
254 | /* C+ mode command register */ | |
255 | RxVlanOn = (1 << 6), /* Rx VLAN de-tagging enable */ | |
256 | RxChkSum = (1 << 5), /* Rx checksum offload enable */ | |
257 | PCIDAC = (1 << 4), /* PCI Dual Address Cycle (64-bit PCI) */ | |
258 | PCIMulRW = (1 << 3), /* Enable PCI read/write multiple */ | |
259 | CpRxOn = (1 << 1), /* Rx mode enable */ | |
260 | CpTxOn = (1 << 0), /* Tx mode enable */ | |
261 | ||
262 | /* Cfg9436 EEPROM control register */ | |
263 | Cfg9346_Lock = 0x00, /* Lock ConfigX/MII register access */ | |
264 | Cfg9346_Unlock = 0xC0, /* Unlock ConfigX/MII register access */ | |
265 | ||
266 | /* TxConfig register */ | |
267 | IFG = (1 << 25) | (1 << 24), /* standard IEEE interframe gap */ | |
268 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
269 | ||
270 | /* Early Tx Threshold register */ | |
271 | TxThreshMask = 0x3f, /* Mask bits 5-0 */ | |
272 | TxThreshMax = 2048, /* Max early Tx threshold */ | |
273 | ||
274 | /* Config1 register */ | |
275 | DriverLoaded = (1 << 5), /* Software marker, driver is loaded */ | |
276 | LWACT = (1 << 4), /* LWAKE active mode */ | |
277 | PMEnable = (1 << 0), /* Enable various PM features of chip */ | |
278 | ||
279 | /* Config3 register */ | |
280 | PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */ | |
281 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
282 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
283 | ||
284 | /* Config4 register */ | |
285 | LWPTN = (1 << 1), /* LWAKE Pattern */ | |
286 | LWPME = (1 << 4), /* LANWAKE vs PMEB */ | |
287 | ||
288 | /* Config5 register */ | |
289 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ | |
290 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
291 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
292 | LANWake = (1 << 1), /* Enable LANWake signal */ | |
293 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ | |
294 | ||
295 | cp_norx_intr_mask = PciErr | LinkChg | TxOK | TxErr | TxEmpty, | |
296 | cp_rx_intr_mask = RxOK | RxErr | RxEmpty | RxFIFOOvr, | |
297 | cp_intr_mask = cp_rx_intr_mask | cp_norx_intr_mask, | |
298 | }; | |
299 | ||
300 | static const unsigned int cp_rx_config = | |
301 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
302 | (RX_DMA_BURST << RxCfgDMAShift); | |
303 | ||
304 | struct cp_desc { | |
03233b90 | 305 | __le32 opts1; |
cf983019 | 306 | __le32 opts2; |
03233b90 | 307 | __le64 addr; |
1da177e4 LT |
308 | }; |
309 | ||
1da177e4 | 310 | struct cp_dma_stats { |
03233b90 AV |
311 | __le64 tx_ok; |
312 | __le64 rx_ok; | |
313 | __le64 tx_err; | |
314 | __le32 rx_err; | |
315 | __le16 rx_fifo; | |
316 | __le16 frame_align; | |
317 | __le32 tx_ok_1col; | |
318 | __le32 tx_ok_mcol; | |
319 | __le64 rx_ok_phys; | |
320 | __le64 rx_ok_bcast; | |
321 | __le32 rx_ok_mcast; | |
322 | __le16 tx_abort; | |
323 | __le16 tx_underrun; | |
1da177e4 LT |
324 | } __attribute__((packed)); |
325 | ||
326 | struct cp_extra_stats { | |
327 | unsigned long rx_frags; | |
328 | }; | |
329 | ||
330 | struct cp_private { | |
331 | void __iomem *regs; | |
332 | struct net_device *dev; | |
333 | spinlock_t lock; | |
334 | u32 msg_enable; | |
335 | ||
bea3348e SH |
336 | struct napi_struct napi; |
337 | ||
1da177e4 LT |
338 | struct pci_dev *pdev; |
339 | u32 rx_config; | |
340 | u16 cpcmd; | |
341 | ||
1da177e4 | 342 | struct cp_extra_stats cp_stats; |
1da177e4 | 343 | |
d03d376d FR |
344 | unsigned rx_head ____cacheline_aligned; |
345 | unsigned rx_tail; | |
1da177e4 | 346 | struct cp_desc *rx_ring; |
0ba894d4 | 347 | struct sk_buff *rx_skb[CP_RX_RING_SIZE]; |
1da177e4 LT |
348 | |
349 | unsigned tx_head ____cacheline_aligned; | |
350 | unsigned tx_tail; | |
1da177e4 | 351 | struct cp_desc *tx_ring; |
48907e39 | 352 | struct sk_buff *tx_skb[CP_TX_RING_SIZE]; |
d03d376d FR |
353 | |
354 | unsigned rx_buf_sz; | |
355 | unsigned wol_enabled : 1; /* Is Wake-on-LAN enabled? */ | |
1da177e4 LT |
356 | |
357 | #if CP_VLAN_TAG_USED | |
358 | struct vlan_group *vlgrp; | |
359 | #endif | |
d03d376d | 360 | dma_addr_t ring_dma; |
1da177e4 LT |
361 | |
362 | struct mii_if_info mii_if; | |
363 | }; | |
364 | ||
365 | #define cpr8(reg) readb(cp->regs + (reg)) | |
366 | #define cpr16(reg) readw(cp->regs + (reg)) | |
367 | #define cpr32(reg) readl(cp->regs + (reg)) | |
368 | #define cpw8(reg,val) writeb((val), cp->regs + (reg)) | |
369 | #define cpw16(reg,val) writew((val), cp->regs + (reg)) | |
370 | #define cpw32(reg,val) writel((val), cp->regs + (reg)) | |
371 | #define cpw8_f(reg,val) do { \ | |
372 | writeb((val), cp->regs + (reg)); \ | |
373 | readb(cp->regs + (reg)); \ | |
374 | } while (0) | |
375 | #define cpw16_f(reg,val) do { \ | |
376 | writew((val), cp->regs + (reg)); \ | |
377 | readw(cp->regs + (reg)); \ | |
378 | } while (0) | |
379 | #define cpw32_f(reg,val) do { \ | |
380 | writel((val), cp->regs + (reg)); \ | |
381 | readl(cp->regs + (reg)); \ | |
382 | } while (0) | |
383 | ||
384 | ||
385 | static void __cp_set_rx_mode (struct net_device *dev); | |
386 | static void cp_tx (struct cp_private *cp); | |
387 | static void cp_clean_rings (struct cp_private *cp); | |
7502cd10 SK |
388 | #ifdef CONFIG_NET_POLL_CONTROLLER |
389 | static void cp_poll_controller(struct net_device *dev); | |
390 | #endif | |
722fdb33 PC |
391 | static int cp_get_eeprom_len(struct net_device *dev); |
392 | static int cp_get_eeprom(struct net_device *dev, | |
393 | struct ethtool_eeprom *eeprom, u8 *data); | |
394 | static int cp_set_eeprom(struct net_device *dev, | |
395 | struct ethtool_eeprom *eeprom, u8 *data); | |
1da177e4 LT |
396 | |
397 | static struct pci_device_id cp_pci_tbl[] = { | |
cccb20d3 FR |
398 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), }, |
399 | { PCI_DEVICE(PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322), }, | |
1da177e4 LT |
400 | { }, |
401 | }; | |
402 | MODULE_DEVICE_TABLE(pci, cp_pci_tbl); | |
403 | ||
404 | static struct { | |
405 | const char str[ETH_GSTRING_LEN]; | |
406 | } ethtool_stats_keys[] = { | |
407 | { "tx_ok" }, | |
408 | { "rx_ok" }, | |
409 | { "tx_err" }, | |
410 | { "rx_err" }, | |
411 | { "rx_fifo" }, | |
412 | { "frame_align" }, | |
413 | { "tx_ok_1col" }, | |
414 | { "tx_ok_mcol" }, | |
415 | { "rx_ok_phys" }, | |
416 | { "rx_ok_bcast" }, | |
417 | { "rx_ok_mcast" }, | |
418 | { "tx_abort" }, | |
419 | { "tx_underrun" }, | |
420 | { "rx_frags" }, | |
421 | }; | |
422 | ||
423 | ||
424 | #if CP_VLAN_TAG_USED | |
425 | static void cp_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
426 | { | |
427 | struct cp_private *cp = netdev_priv(dev); | |
428 | unsigned long flags; | |
429 | ||
430 | spin_lock_irqsave(&cp->lock, flags); | |
431 | cp->vlgrp = grp; | |
7b332244 SH |
432 | if (grp) |
433 | cp->cpcmd |= RxVlanOn; | |
434 | else | |
435 | cp->cpcmd &= ~RxVlanOn; | |
1da177e4 | 436 | |
1da177e4 | 437 | cpw16(CpCmd, cp->cpcmd); |
1da177e4 LT |
438 | spin_unlock_irqrestore(&cp->lock, flags); |
439 | } | |
440 | #endif /* CP_VLAN_TAG_USED */ | |
441 | ||
442 | static inline void cp_set_rxbufsize (struct cp_private *cp) | |
443 | { | |
444 | unsigned int mtu = cp->dev->mtu; | |
f3b197ac | 445 | |
1da177e4 LT |
446 | if (mtu > ETH_DATA_LEN) |
447 | /* MTU + ethernet header + FCS + optional VLAN tag */ | |
448 | cp->rx_buf_sz = mtu + ETH_HLEN + 8; | |
449 | else | |
450 | cp->rx_buf_sz = PKT_BUF_SZ; | |
451 | } | |
452 | ||
453 | static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb, | |
454 | struct cp_desc *desc) | |
455 | { | |
456 | skb->protocol = eth_type_trans (skb, cp->dev); | |
457 | ||
237225f7 PZ |
458 | cp->dev->stats.rx_packets++; |
459 | cp->dev->stats.rx_bytes += skb->len; | |
1da177e4 LT |
460 | |
461 | #if CP_VLAN_TAG_USED | |
cf983019 | 462 | if (cp->vlgrp && (desc->opts2 & cpu_to_le32(RxVlanTagged))) { |
1da177e4 | 463 | vlan_hwaccel_receive_skb(skb, cp->vlgrp, |
cf983019 | 464 | swab16(le32_to_cpu(desc->opts2) & 0xffff)); |
1da177e4 LT |
465 | } else |
466 | #endif | |
467 | netif_receive_skb(skb); | |
468 | } | |
469 | ||
470 | static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail, | |
471 | u32 status, u32 len) | |
472 | { | |
473 | if (netif_msg_rx_err (cp)) | |
474 | printk (KERN_DEBUG | |
475 | "%s: rx err, slot %d status 0x%x len %d\n", | |
476 | cp->dev->name, rx_tail, status, len); | |
237225f7 | 477 | cp->dev->stats.rx_errors++; |
1da177e4 | 478 | if (status & RxErrFrame) |
237225f7 | 479 | cp->dev->stats.rx_frame_errors++; |
1da177e4 | 480 | if (status & RxErrCRC) |
237225f7 | 481 | cp->dev->stats.rx_crc_errors++; |
1da177e4 | 482 | if ((status & RxErrRunt) || (status & RxErrLong)) |
237225f7 | 483 | cp->dev->stats.rx_length_errors++; |
1da177e4 | 484 | if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) |
237225f7 | 485 | cp->dev->stats.rx_length_errors++; |
1da177e4 | 486 | if (status & RxErrFIFO) |
237225f7 | 487 | cp->dev->stats.rx_fifo_errors++; |
1da177e4 LT |
488 | } |
489 | ||
490 | static inline unsigned int cp_rx_csum_ok (u32 status) | |
491 | { | |
492 | unsigned int protocol = (status >> 16) & 0x3; | |
f3b197ac | 493 | |
1da177e4 LT |
494 | if (likely((protocol == RxProtoTCP) && (!(status & TCPFail)))) |
495 | return 1; | |
496 | else if ((protocol == RxProtoUDP) && (!(status & UDPFail))) | |
497 | return 1; | |
498 | else if ((protocol == RxProtoIP) && (!(status & IPFail))) | |
499 | return 1; | |
500 | return 0; | |
501 | } | |
502 | ||
bea3348e | 503 | static int cp_rx_poll(struct napi_struct *napi, int budget) |
1da177e4 | 504 | { |
bea3348e SH |
505 | struct cp_private *cp = container_of(napi, struct cp_private, napi); |
506 | struct net_device *dev = cp->dev; | |
507 | unsigned int rx_tail = cp->rx_tail; | |
508 | int rx; | |
1da177e4 LT |
509 | |
510 | rx_status_loop: | |
511 | rx = 0; | |
512 | cpw16(IntrStatus, cp_rx_intr_mask); | |
513 | ||
514 | while (1) { | |
515 | u32 status, len; | |
516 | dma_addr_t mapping; | |
517 | struct sk_buff *skb, *new_skb; | |
518 | struct cp_desc *desc; | |
519 | unsigned buflen; | |
520 | ||
0ba894d4 | 521 | skb = cp->rx_skb[rx_tail]; |
5d9428de | 522 | BUG_ON(!skb); |
1da177e4 LT |
523 | |
524 | desc = &cp->rx_ring[rx_tail]; | |
525 | status = le32_to_cpu(desc->opts1); | |
526 | if (status & DescOwn) | |
527 | break; | |
528 | ||
529 | len = (status & 0x1fff) - 4; | |
3598b57b | 530 | mapping = le64_to_cpu(desc->addr); |
1da177e4 LT |
531 | |
532 | if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) { | |
533 | /* we don't support incoming fragmented frames. | |
534 | * instead, we attempt to ensure that the | |
535 | * pre-allocated RX skbs are properly sized such | |
536 | * that RX fragments are never encountered | |
537 | */ | |
538 | cp_rx_err_acct(cp, rx_tail, status, len); | |
237225f7 | 539 | dev->stats.rx_dropped++; |
1da177e4 LT |
540 | cp->cp_stats.rx_frags++; |
541 | goto rx_next; | |
542 | } | |
543 | ||
544 | if (status & (RxError | RxErrFIFO)) { | |
545 | cp_rx_err_acct(cp, rx_tail, status, len); | |
546 | goto rx_next; | |
547 | } | |
548 | ||
549 | if (netif_msg_rx_status(cp)) | |
550 | printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d\n", | |
c48e9399 | 551 | dev->name, rx_tail, status, len); |
1da177e4 | 552 | |
a52be1cb KL |
553 | buflen = cp->rx_buf_sz + NET_IP_ALIGN; |
554 | new_skb = netdev_alloc_skb(dev, buflen); | |
1da177e4 | 555 | if (!new_skb) { |
237225f7 | 556 | dev->stats.rx_dropped++; |
1da177e4 LT |
557 | goto rx_next; |
558 | } | |
559 | ||
a52be1cb | 560 | skb_reserve(new_skb, NET_IP_ALIGN); |
1da177e4 | 561 | |
6cc92cdd | 562 | dma_unmap_single(&cp->pdev->dev, mapping, |
1da177e4 LT |
563 | buflen, PCI_DMA_FROMDEVICE); |
564 | ||
565 | /* Handle checksum offloading for incoming packets. */ | |
566 | if (cp_rx_csum_ok(status)) | |
567 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
568 | else | |
569 | skb->ip_summed = CHECKSUM_NONE; | |
570 | ||
571 | skb_put(skb, len); | |
572 | ||
6cc92cdd | 573 | mapping = dma_map_single(&cp->pdev->dev, new_skb->data, buflen, |
3598b57b | 574 | PCI_DMA_FROMDEVICE); |
0ba894d4 | 575 | cp->rx_skb[rx_tail] = new_skb; |
1da177e4 LT |
576 | |
577 | cp_rx_skb(cp, skb, desc); | |
578 | rx++; | |
579 | ||
580 | rx_next: | |
581 | cp->rx_ring[rx_tail].opts2 = 0; | |
582 | cp->rx_ring[rx_tail].addr = cpu_to_le64(mapping); | |
583 | if (rx_tail == (CP_RX_RING_SIZE - 1)) | |
584 | desc->opts1 = cpu_to_le32(DescOwn | RingEnd | | |
585 | cp->rx_buf_sz); | |
586 | else | |
587 | desc->opts1 = cpu_to_le32(DescOwn | cp->rx_buf_sz); | |
588 | rx_tail = NEXT_RX(rx_tail); | |
589 | ||
bea3348e | 590 | if (rx >= budget) |
1da177e4 LT |
591 | break; |
592 | } | |
593 | ||
594 | cp->rx_tail = rx_tail; | |
595 | ||
1da177e4 LT |
596 | /* if we did not reach work limit, then we're done with |
597 | * this round of polling | |
598 | */ | |
bea3348e | 599 | if (rx < budget) { |
d15e9c4d FR |
600 | unsigned long flags; |
601 | ||
1da177e4 LT |
602 | if (cpr16(IntrStatus) & cp_rx_intr_mask) |
603 | goto rx_status_loop; | |
604 | ||
bea3348e | 605 | spin_lock_irqsave(&cp->lock, flags); |
1da177e4 | 606 | cpw16_f(IntrMask, cp_intr_mask); |
bea3348e SH |
607 | __netif_rx_complete(dev, napi); |
608 | spin_unlock_irqrestore(&cp->lock, flags); | |
1da177e4 LT |
609 | } |
610 | ||
bea3348e | 611 | return rx; |
1da177e4 LT |
612 | } |
613 | ||
7d12e780 | 614 | static irqreturn_t cp_interrupt (int irq, void *dev_instance) |
1da177e4 LT |
615 | { |
616 | struct net_device *dev = dev_instance; | |
617 | struct cp_private *cp; | |
618 | u16 status; | |
619 | ||
620 | if (unlikely(dev == NULL)) | |
621 | return IRQ_NONE; | |
622 | cp = netdev_priv(dev); | |
623 | ||
624 | status = cpr16(IntrStatus); | |
625 | if (!status || (status == 0xFFFF)) | |
626 | return IRQ_NONE; | |
627 | ||
628 | if (netif_msg_intr(cp)) | |
629 | printk(KERN_DEBUG "%s: intr, status %04x cmd %02x cpcmd %04x\n", | |
630 | dev->name, status, cpr8(Cmd), cpr16(CpCmd)); | |
631 | ||
632 | cpw16(IntrStatus, status & ~cp_rx_intr_mask); | |
633 | ||
634 | spin_lock(&cp->lock); | |
635 | ||
636 | /* close possible race's with dev_close */ | |
637 | if (unlikely(!netif_running(dev))) { | |
638 | cpw16(IntrMask, 0); | |
639 | spin_unlock(&cp->lock); | |
640 | return IRQ_HANDLED; | |
641 | } | |
642 | ||
643 | if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr)) | |
bea3348e | 644 | if (netif_rx_schedule_prep(dev, &cp->napi)) { |
1da177e4 | 645 | cpw16_f(IntrMask, cp_norx_intr_mask); |
bea3348e | 646 | __netif_rx_schedule(dev, &cp->napi); |
1da177e4 LT |
647 | } |
648 | ||
649 | if (status & (TxOK | TxErr | TxEmpty | SWInt)) | |
650 | cp_tx(cp); | |
651 | if (status & LinkChg) | |
2501f843 | 652 | mii_check_media(&cp->mii_if, netif_msg_link(cp), false); |
1da177e4 LT |
653 | |
654 | spin_unlock(&cp->lock); | |
655 | ||
656 | if (status & PciErr) { | |
657 | u16 pci_status; | |
658 | ||
659 | pci_read_config_word(cp->pdev, PCI_STATUS, &pci_status); | |
660 | pci_write_config_word(cp->pdev, PCI_STATUS, pci_status); | |
661 | printk(KERN_ERR "%s: PCI bus error, status=%04x, PCI status=%04x\n", | |
662 | dev->name, status, pci_status); | |
663 | ||
664 | /* TODO: reset hardware */ | |
665 | } | |
666 | ||
667 | return IRQ_HANDLED; | |
668 | } | |
669 | ||
7502cd10 SK |
670 | #ifdef CONFIG_NET_POLL_CONTROLLER |
671 | /* | |
672 | * Polling receive - used by netconsole and other diagnostic tools | |
673 | * to allow network i/o with interrupts disabled. | |
674 | */ | |
675 | static void cp_poll_controller(struct net_device *dev) | |
676 | { | |
677 | disable_irq(dev->irq); | |
7d12e780 | 678 | cp_interrupt(dev->irq, dev); |
7502cd10 SK |
679 | enable_irq(dev->irq); |
680 | } | |
681 | #endif | |
682 | ||
1da177e4 LT |
683 | static void cp_tx (struct cp_private *cp) |
684 | { | |
685 | unsigned tx_head = cp->tx_head; | |
686 | unsigned tx_tail = cp->tx_tail; | |
687 | ||
688 | while (tx_tail != tx_head) { | |
3598b57b | 689 | struct cp_desc *txd = cp->tx_ring + tx_tail; |
1da177e4 LT |
690 | struct sk_buff *skb; |
691 | u32 status; | |
692 | ||
693 | rmb(); | |
3598b57b | 694 | status = le32_to_cpu(txd->opts1); |
1da177e4 LT |
695 | if (status & DescOwn) |
696 | break; | |
697 | ||
48907e39 | 698 | skb = cp->tx_skb[tx_tail]; |
5d9428de | 699 | BUG_ON(!skb); |
1da177e4 | 700 | |
6cc92cdd | 701 | dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr), |
48907e39 FR |
702 | le32_to_cpu(txd->opts1) & 0xffff, |
703 | PCI_DMA_TODEVICE); | |
1da177e4 LT |
704 | |
705 | if (status & LastFrag) { | |
706 | if (status & (TxError | TxFIFOUnder)) { | |
707 | if (netif_msg_tx_err(cp)) | |
708 | printk(KERN_DEBUG "%s: tx err, status 0x%x\n", | |
709 | cp->dev->name, status); | |
237225f7 | 710 | cp->dev->stats.tx_errors++; |
1da177e4 | 711 | if (status & TxOWC) |
237225f7 | 712 | cp->dev->stats.tx_window_errors++; |
1da177e4 | 713 | if (status & TxMaxCol) |
237225f7 | 714 | cp->dev->stats.tx_aborted_errors++; |
1da177e4 | 715 | if (status & TxLinkFail) |
237225f7 | 716 | cp->dev->stats.tx_carrier_errors++; |
1da177e4 | 717 | if (status & TxFIFOUnder) |
237225f7 | 718 | cp->dev->stats.tx_fifo_errors++; |
1da177e4 | 719 | } else { |
237225f7 | 720 | cp->dev->stats.collisions += |
1da177e4 | 721 | ((status >> TxColCntShift) & TxColCntMask); |
237225f7 PZ |
722 | cp->dev->stats.tx_packets++; |
723 | cp->dev->stats.tx_bytes += skb->len; | |
1da177e4 LT |
724 | if (netif_msg_tx_done(cp)) |
725 | printk(KERN_DEBUG "%s: tx done, slot %d\n", cp->dev->name, tx_tail); | |
726 | } | |
727 | dev_kfree_skb_irq(skb); | |
728 | } | |
729 | ||
48907e39 | 730 | cp->tx_skb[tx_tail] = NULL; |
1da177e4 LT |
731 | |
732 | tx_tail = NEXT_TX(tx_tail); | |
733 | } | |
734 | ||
735 | cp->tx_tail = tx_tail; | |
736 | ||
737 | if (TX_BUFFS_AVAIL(cp) > (MAX_SKB_FRAGS + 1)) | |
738 | netif_wake_queue(cp->dev); | |
739 | } | |
740 | ||
741 | static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
742 | { | |
743 | struct cp_private *cp = netdev_priv(dev); | |
744 | unsigned entry; | |
fcec3456 | 745 | u32 eor, flags; |
553af567 | 746 | unsigned long intr_flags; |
1da177e4 LT |
747 | #if CP_VLAN_TAG_USED |
748 | u32 vlan_tag = 0; | |
749 | #endif | |
fcec3456 | 750 | int mss = 0; |
1da177e4 | 751 | |
553af567 | 752 | spin_lock_irqsave(&cp->lock, intr_flags); |
1da177e4 LT |
753 | |
754 | /* This is a hard error, log it. */ | |
755 | if (TX_BUFFS_AVAIL(cp) <= (skb_shinfo(skb)->nr_frags + 1)) { | |
756 | netif_stop_queue(dev); | |
553af567 | 757 | spin_unlock_irqrestore(&cp->lock, intr_flags); |
1da177e4 LT |
758 | printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n", |
759 | dev->name); | |
760 | return 1; | |
761 | } | |
762 | ||
763 | #if CP_VLAN_TAG_USED | |
764 | if (cp->vlgrp && vlan_tx_tag_present(skb)) | |
cf983019 | 765 | vlan_tag = TxVlanTag | swab16(vlan_tx_tag_get(skb)); |
1da177e4 LT |
766 | #endif |
767 | ||
768 | entry = cp->tx_head; | |
769 | eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0; | |
fcec3456 | 770 | if (dev->features & NETIF_F_TSO) |
7967168c | 771 | mss = skb_shinfo(skb)->gso_size; |
fcec3456 | 772 | |
1da177e4 LT |
773 | if (skb_shinfo(skb)->nr_frags == 0) { |
774 | struct cp_desc *txd = &cp->tx_ring[entry]; | |
775 | u32 len; | |
776 | dma_addr_t mapping; | |
777 | ||
778 | len = skb->len; | |
6cc92cdd | 779 | mapping = dma_map_single(&cp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE); |
1da177e4 LT |
780 | CP_VLAN_TX_TAG(txd, vlan_tag); |
781 | txd->addr = cpu_to_le64(mapping); | |
782 | wmb(); | |
783 | ||
fcec3456 JG |
784 | flags = eor | len | DescOwn | FirstFrag | LastFrag; |
785 | ||
786 | if (mss) | |
787 | flags |= LargeSend | ((mss & MSSMask) << MSSShift); | |
84fa7933 | 788 | else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
eddc9ec5 | 789 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 | 790 | if (ip->protocol == IPPROTO_TCP) |
fcec3456 | 791 | flags |= IPCS | TCPCS; |
1da177e4 | 792 | else if (ip->protocol == IPPROTO_UDP) |
fcec3456 | 793 | flags |= IPCS | UDPCS; |
1da177e4 | 794 | else |
5734418d | 795 | WARN_ON(1); /* we need a WARN() */ |
fcec3456 JG |
796 | } |
797 | ||
798 | txd->opts1 = cpu_to_le32(flags); | |
1da177e4 LT |
799 | wmb(); |
800 | ||
48907e39 | 801 | cp->tx_skb[entry] = skb; |
1da177e4 LT |
802 | entry = NEXT_TX(entry); |
803 | } else { | |
804 | struct cp_desc *txd; | |
805 | u32 first_len, first_eor; | |
806 | dma_addr_t first_mapping; | |
807 | int frag, first_entry = entry; | |
eddc9ec5 | 808 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
809 | |
810 | /* We must give this initial chunk to the device last. | |
811 | * Otherwise we could race with the device. | |
812 | */ | |
813 | first_eor = eor; | |
814 | first_len = skb_headlen(skb); | |
6cc92cdd | 815 | first_mapping = dma_map_single(&cp->pdev->dev, skb->data, |
1da177e4 | 816 | first_len, PCI_DMA_TODEVICE); |
48907e39 | 817 | cp->tx_skb[entry] = skb; |
1da177e4 LT |
818 | entry = NEXT_TX(entry); |
819 | ||
820 | for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { | |
821 | skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; | |
822 | u32 len; | |
823 | u32 ctrl; | |
824 | dma_addr_t mapping; | |
825 | ||
826 | len = this_frag->size; | |
6cc92cdd | 827 | mapping = dma_map_single(&cp->pdev->dev, |
1da177e4 LT |
828 | ((void *) page_address(this_frag->page) + |
829 | this_frag->page_offset), | |
830 | len, PCI_DMA_TODEVICE); | |
831 | eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0; | |
832 | ||
fcec3456 JG |
833 | ctrl = eor | len | DescOwn; |
834 | ||
835 | if (mss) | |
836 | ctrl |= LargeSend | | |
837 | ((mss & MSSMask) << MSSShift); | |
84fa7933 | 838 | else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 | 839 | if (ip->protocol == IPPROTO_TCP) |
fcec3456 | 840 | ctrl |= IPCS | TCPCS; |
1da177e4 | 841 | else if (ip->protocol == IPPROTO_UDP) |
fcec3456 | 842 | ctrl |= IPCS | UDPCS; |
1da177e4 LT |
843 | else |
844 | BUG(); | |
fcec3456 | 845 | } |
1da177e4 LT |
846 | |
847 | if (frag == skb_shinfo(skb)->nr_frags - 1) | |
848 | ctrl |= LastFrag; | |
849 | ||
850 | txd = &cp->tx_ring[entry]; | |
851 | CP_VLAN_TX_TAG(txd, vlan_tag); | |
852 | txd->addr = cpu_to_le64(mapping); | |
853 | wmb(); | |
854 | ||
855 | txd->opts1 = cpu_to_le32(ctrl); | |
856 | wmb(); | |
857 | ||
48907e39 | 858 | cp->tx_skb[entry] = skb; |
1da177e4 LT |
859 | entry = NEXT_TX(entry); |
860 | } | |
861 | ||
862 | txd = &cp->tx_ring[first_entry]; | |
863 | CP_VLAN_TX_TAG(txd, vlan_tag); | |
864 | txd->addr = cpu_to_le64(first_mapping); | |
865 | wmb(); | |
866 | ||
84fa7933 | 867 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1da177e4 LT |
868 | if (ip->protocol == IPPROTO_TCP) |
869 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
870 | FirstFrag | DescOwn | | |
871 | IPCS | TCPCS); | |
872 | else if (ip->protocol == IPPROTO_UDP) | |
873 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
874 | FirstFrag | DescOwn | | |
875 | IPCS | UDPCS); | |
876 | else | |
877 | BUG(); | |
878 | } else | |
879 | txd->opts1 = cpu_to_le32(first_eor | first_len | | |
880 | FirstFrag | DescOwn); | |
881 | wmb(); | |
882 | } | |
883 | cp->tx_head = entry; | |
884 | if (netif_msg_tx_queued(cp)) | |
885 | printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n", | |
886 | dev->name, entry, skb->len); | |
887 | if (TX_BUFFS_AVAIL(cp) <= (MAX_SKB_FRAGS + 1)) | |
888 | netif_stop_queue(dev); | |
889 | ||
553af567 | 890 | spin_unlock_irqrestore(&cp->lock, intr_flags); |
1da177e4 LT |
891 | |
892 | cpw8(TxPoll, NormalTxPoll); | |
893 | dev->trans_start = jiffies; | |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
898 | /* Set or clear the multicast filter for this adaptor. | |
899 | This routine is not state sensitive and need not be SMP locked. */ | |
900 | ||
901 | static void __cp_set_rx_mode (struct net_device *dev) | |
902 | { | |
903 | struct cp_private *cp = netdev_priv(dev); | |
904 | u32 mc_filter[2]; /* Multicast hash filter */ | |
905 | int i, rx_mode; | |
906 | u32 tmp; | |
907 | ||
908 | /* Note: do not reorder, GCC is clever about common statements. */ | |
909 | if (dev->flags & IFF_PROMISC) { | |
910 | /* Unconditionally log net taps. */ | |
1da177e4 LT |
911 | rx_mode = |
912 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
913 | AcceptAllPhys; | |
914 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
915 | } else if ((dev->mc_count > multicast_filter_limit) | |
916 | || (dev->flags & IFF_ALLMULTI)) { | |
917 | /* Too many to filter perfectly -- accept all multicasts. */ | |
918 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
919 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
920 | } else { | |
921 | struct dev_mc_list *mclist; | |
922 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
923 | mc_filter[1] = mc_filter[0] = 0; | |
924 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
925 | i++, mclist = mclist->next) { | |
926 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
927 | ||
928 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
929 | rx_mode |= AcceptMulticast; | |
930 | } | |
931 | } | |
932 | ||
933 | /* We can safely update without stopping the chip. */ | |
934 | tmp = cp_rx_config | rx_mode; | |
935 | if (cp->rx_config != tmp) { | |
936 | cpw32_f (RxConfig, tmp); | |
937 | cp->rx_config = tmp; | |
938 | } | |
939 | cpw32_f (MAR0 + 0, mc_filter[0]); | |
940 | cpw32_f (MAR0 + 4, mc_filter[1]); | |
941 | } | |
942 | ||
943 | static void cp_set_rx_mode (struct net_device *dev) | |
944 | { | |
945 | unsigned long flags; | |
946 | struct cp_private *cp = netdev_priv(dev); | |
947 | ||
948 | spin_lock_irqsave (&cp->lock, flags); | |
949 | __cp_set_rx_mode(dev); | |
950 | spin_unlock_irqrestore (&cp->lock, flags); | |
951 | } | |
952 | ||
953 | static void __cp_get_stats(struct cp_private *cp) | |
954 | { | |
955 | /* only lower 24 bits valid; write any value to clear */ | |
237225f7 | 956 | cp->dev->stats.rx_missed_errors += (cpr32 (RxMissed) & 0xffffff); |
1da177e4 LT |
957 | cpw32 (RxMissed, 0); |
958 | } | |
959 | ||
960 | static struct net_device_stats *cp_get_stats(struct net_device *dev) | |
961 | { | |
962 | struct cp_private *cp = netdev_priv(dev); | |
963 | unsigned long flags; | |
964 | ||
965 | /* The chip only need report frame silently dropped. */ | |
966 | spin_lock_irqsave(&cp->lock, flags); | |
967 | if (netif_running(dev) && netif_device_present(dev)) | |
968 | __cp_get_stats(cp); | |
969 | spin_unlock_irqrestore(&cp->lock, flags); | |
970 | ||
237225f7 | 971 | return &dev->stats; |
1da177e4 LT |
972 | } |
973 | ||
974 | static void cp_stop_hw (struct cp_private *cp) | |
975 | { | |
976 | cpw16(IntrStatus, ~(cpr16(IntrStatus))); | |
977 | cpw16_f(IntrMask, 0); | |
978 | cpw8(Cmd, 0); | |
979 | cpw16_f(CpCmd, 0); | |
980 | cpw16_f(IntrStatus, ~(cpr16(IntrStatus))); | |
981 | ||
982 | cp->rx_tail = 0; | |
983 | cp->tx_head = cp->tx_tail = 0; | |
984 | } | |
985 | ||
986 | static void cp_reset_hw (struct cp_private *cp) | |
987 | { | |
988 | unsigned work = 1000; | |
989 | ||
990 | cpw8(Cmd, CmdReset); | |
991 | ||
992 | while (work--) { | |
993 | if (!(cpr8(Cmd) & CmdReset)) | |
994 | return; | |
995 | ||
3173c890 | 996 | schedule_timeout_uninterruptible(10); |
1da177e4 LT |
997 | } |
998 | ||
999 | printk(KERN_ERR "%s: hardware reset timeout\n", cp->dev->name); | |
1000 | } | |
1001 | ||
1002 | static inline void cp_start_hw (struct cp_private *cp) | |
1003 | { | |
1004 | cpw16(CpCmd, cp->cpcmd); | |
1005 | cpw8(Cmd, RxOn | TxOn); | |
1006 | } | |
1007 | ||
1008 | static void cp_init_hw (struct cp_private *cp) | |
1009 | { | |
1010 | struct net_device *dev = cp->dev; | |
1011 | dma_addr_t ring_dma; | |
1012 | ||
1013 | cp_reset_hw(cp); | |
1014 | ||
1015 | cpw8_f (Cfg9346, Cfg9346_Unlock); | |
1016 | ||
1017 | /* Restore our idea of the MAC address. */ | |
03233b90 AV |
1018 | cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
1019 | cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4))); | |
1da177e4 LT |
1020 | |
1021 | cp_start_hw(cp); | |
1022 | cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */ | |
1023 | ||
1024 | __cp_set_rx_mode(dev); | |
1025 | cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift)); | |
1026 | ||
1027 | cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable); | |
1028 | /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */ | |
1029 | cpw8(Config3, PARMEnable); | |
1030 | cp->wol_enabled = 0; | |
1031 | ||
f3b197ac | 1032 | cpw8(Config5, cpr8(Config5) & PMEStatus); |
1da177e4 LT |
1033 | |
1034 | cpw32_f(HiTxRingAddr, 0); | |
1035 | cpw32_f(HiTxRingAddr + 4, 0); | |
1036 | ||
1037 | ring_dma = cp->ring_dma; | |
1038 | cpw32_f(RxRingAddr, ring_dma & 0xffffffff); | |
1039 | cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16); | |
1040 | ||
1041 | ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE; | |
1042 | cpw32_f(TxRingAddr, ring_dma & 0xffffffff); | |
1043 | cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16); | |
1044 | ||
1045 | cpw16(MultiIntr, 0); | |
1046 | ||
1047 | cpw16_f(IntrMask, cp_intr_mask); | |
1048 | ||
1049 | cpw8_f(Cfg9346, Cfg9346_Lock); | |
1050 | } | |
1051 | ||
a52be1cb | 1052 | static int cp_refill_rx(struct cp_private *cp) |
1da177e4 | 1053 | { |
a52be1cb | 1054 | struct net_device *dev = cp->dev; |
1da177e4 LT |
1055 | unsigned i; |
1056 | ||
1057 | for (i = 0; i < CP_RX_RING_SIZE; i++) { | |
1058 | struct sk_buff *skb; | |
3598b57b | 1059 | dma_addr_t mapping; |
1da177e4 | 1060 | |
a52be1cb | 1061 | skb = netdev_alloc_skb(dev, cp->rx_buf_sz + NET_IP_ALIGN); |
1da177e4 LT |
1062 | if (!skb) |
1063 | goto err_out; | |
1064 | ||
a52be1cb | 1065 | skb_reserve(skb, NET_IP_ALIGN); |
1da177e4 | 1066 | |
6cc92cdd JG |
1067 | mapping = dma_map_single(&cp->pdev->dev, skb->data, |
1068 | cp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
0ba894d4 | 1069 | cp->rx_skb[i] = skb; |
1da177e4 LT |
1070 | |
1071 | cp->rx_ring[i].opts2 = 0; | |
3598b57b | 1072 | cp->rx_ring[i].addr = cpu_to_le64(mapping); |
1da177e4 LT |
1073 | if (i == (CP_RX_RING_SIZE - 1)) |
1074 | cp->rx_ring[i].opts1 = | |
1075 | cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz); | |
1076 | else | |
1077 | cp->rx_ring[i].opts1 = | |
1078 | cpu_to_le32(DescOwn | cp->rx_buf_sz); | |
1079 | } | |
1080 | ||
1081 | return 0; | |
1082 | ||
1083 | err_out: | |
1084 | cp_clean_rings(cp); | |
1085 | return -ENOMEM; | |
1086 | } | |
1087 | ||
576cfa93 FR |
1088 | static void cp_init_rings_index (struct cp_private *cp) |
1089 | { | |
1090 | cp->rx_tail = 0; | |
1091 | cp->tx_head = cp->tx_tail = 0; | |
1092 | } | |
1093 | ||
1da177e4 LT |
1094 | static int cp_init_rings (struct cp_private *cp) |
1095 | { | |
1096 | memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE); | |
1097 | cp->tx_ring[CP_TX_RING_SIZE - 1].opts1 = cpu_to_le32(RingEnd); | |
1098 | ||
576cfa93 | 1099 | cp_init_rings_index(cp); |
1da177e4 LT |
1100 | |
1101 | return cp_refill_rx (cp); | |
1102 | } | |
1103 | ||
1104 | static int cp_alloc_rings (struct cp_private *cp) | |
1105 | { | |
1106 | void *mem; | |
1107 | ||
6cc92cdd JG |
1108 | mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES, |
1109 | &cp->ring_dma, GFP_KERNEL); | |
1da177e4 LT |
1110 | if (!mem) |
1111 | return -ENOMEM; | |
1112 | ||
1113 | cp->rx_ring = mem; | |
1114 | cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE]; | |
1115 | ||
1da177e4 LT |
1116 | return cp_init_rings(cp); |
1117 | } | |
1118 | ||
1119 | static void cp_clean_rings (struct cp_private *cp) | |
1120 | { | |
3598b57b | 1121 | struct cp_desc *desc; |
1da177e4 LT |
1122 | unsigned i; |
1123 | ||
1da177e4 | 1124 | for (i = 0; i < CP_RX_RING_SIZE; i++) { |
0ba894d4 | 1125 | if (cp->rx_skb[i]) { |
3598b57b | 1126 | desc = cp->rx_ring + i; |
6cc92cdd | 1127 | dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr), |
1da177e4 | 1128 | cp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
0ba894d4 | 1129 | dev_kfree_skb(cp->rx_skb[i]); |
1da177e4 LT |
1130 | } |
1131 | } | |
1132 | ||
1133 | for (i = 0; i < CP_TX_RING_SIZE; i++) { | |
48907e39 FR |
1134 | if (cp->tx_skb[i]) { |
1135 | struct sk_buff *skb = cp->tx_skb[i]; | |
5734418d | 1136 | |
3598b57b | 1137 | desc = cp->tx_ring + i; |
6cc92cdd | 1138 | dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr), |
48907e39 FR |
1139 | le32_to_cpu(desc->opts1) & 0xffff, |
1140 | PCI_DMA_TODEVICE); | |
3598b57b | 1141 | if (le32_to_cpu(desc->opts1) & LastFrag) |
5734418d | 1142 | dev_kfree_skb(skb); |
237225f7 | 1143 | cp->dev->stats.tx_dropped++; |
1da177e4 LT |
1144 | } |
1145 | } | |
1146 | ||
5734418d FR |
1147 | memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE); |
1148 | memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE); | |
1149 | ||
0ba894d4 | 1150 | memset(cp->rx_skb, 0, sizeof(struct sk_buff *) * CP_RX_RING_SIZE); |
48907e39 | 1151 | memset(cp->tx_skb, 0, sizeof(struct sk_buff *) * CP_TX_RING_SIZE); |
1da177e4 LT |
1152 | } |
1153 | ||
1154 | static void cp_free_rings (struct cp_private *cp) | |
1155 | { | |
1156 | cp_clean_rings(cp); | |
6cc92cdd JG |
1157 | dma_free_coherent(&cp->pdev->dev, CP_RING_BYTES, cp->rx_ring, |
1158 | cp->ring_dma); | |
1da177e4 LT |
1159 | cp->rx_ring = NULL; |
1160 | cp->tx_ring = NULL; | |
1da177e4 LT |
1161 | } |
1162 | ||
1163 | static int cp_open (struct net_device *dev) | |
1164 | { | |
1165 | struct cp_private *cp = netdev_priv(dev); | |
1166 | int rc; | |
1167 | ||
1168 | if (netif_msg_ifup(cp)) | |
1169 | printk(KERN_DEBUG "%s: enabling interface\n", dev->name); | |
1170 | ||
1171 | rc = cp_alloc_rings(cp); | |
1172 | if (rc) | |
1173 | return rc; | |
1174 | ||
bea3348e SH |
1175 | napi_enable(&cp->napi); |
1176 | ||
1da177e4 LT |
1177 | cp_init_hw(cp); |
1178 | ||
1fb9df5d | 1179 | rc = request_irq(dev->irq, cp_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
1180 | if (rc) |
1181 | goto err_out_hw; | |
1182 | ||
1183 | netif_carrier_off(dev); | |
2501f843 | 1184 | mii_check_media(&cp->mii_if, netif_msg_link(cp), true); |
1da177e4 LT |
1185 | netif_start_queue(dev); |
1186 | ||
1187 | return 0; | |
1188 | ||
1189 | err_out_hw: | |
bea3348e | 1190 | napi_disable(&cp->napi); |
1da177e4 LT |
1191 | cp_stop_hw(cp); |
1192 | cp_free_rings(cp); | |
1193 | return rc; | |
1194 | } | |
1195 | ||
1196 | static int cp_close (struct net_device *dev) | |
1197 | { | |
1198 | struct cp_private *cp = netdev_priv(dev); | |
1199 | unsigned long flags; | |
1200 | ||
bea3348e SH |
1201 | napi_disable(&cp->napi); |
1202 | ||
1da177e4 LT |
1203 | if (netif_msg_ifdown(cp)) |
1204 | printk(KERN_DEBUG "%s: disabling interface\n", dev->name); | |
1205 | ||
1206 | spin_lock_irqsave(&cp->lock, flags); | |
1207 | ||
1208 | netif_stop_queue(dev); | |
1209 | netif_carrier_off(dev); | |
1210 | ||
1211 | cp_stop_hw(cp); | |
1212 | ||
1213 | spin_unlock_irqrestore(&cp->lock, flags); | |
1214 | ||
1da177e4 LT |
1215 | free_irq(dev->irq, dev); |
1216 | ||
1217 | cp_free_rings(cp); | |
1218 | return 0; | |
1219 | } | |
1220 | ||
9030c0d2 FR |
1221 | static void cp_tx_timeout(struct net_device *dev) |
1222 | { | |
1223 | struct cp_private *cp = netdev_priv(dev); | |
1224 | unsigned long flags; | |
1225 | int rc; | |
1226 | ||
1227 | printk(KERN_WARNING "%s: Transmit timeout, status %2x %4x %4x %4x\n", | |
1228 | dev->name, cpr8(Cmd), cpr16(CpCmd), | |
1229 | cpr16(IntrStatus), cpr16(IntrMask)); | |
1230 | ||
1231 | spin_lock_irqsave(&cp->lock, flags); | |
1232 | ||
1233 | cp_stop_hw(cp); | |
1234 | cp_clean_rings(cp); | |
1235 | rc = cp_init_rings(cp); | |
1236 | cp_start_hw(cp); | |
1237 | ||
1238 | netif_wake_queue(dev); | |
1239 | ||
1240 | spin_unlock_irqrestore(&cp->lock, flags); | |
1241 | ||
1242 | return; | |
1243 | } | |
1244 | ||
1da177e4 LT |
1245 | #ifdef BROKEN |
1246 | static int cp_change_mtu(struct net_device *dev, int new_mtu) | |
1247 | { | |
1248 | struct cp_private *cp = netdev_priv(dev); | |
1249 | int rc; | |
1250 | unsigned long flags; | |
1251 | ||
1252 | /* check for invalid MTU, according to hardware limits */ | |
1253 | if (new_mtu < CP_MIN_MTU || new_mtu > CP_MAX_MTU) | |
1254 | return -EINVAL; | |
1255 | ||
1256 | /* if network interface not up, no need for complexity */ | |
1257 | if (!netif_running(dev)) { | |
1258 | dev->mtu = new_mtu; | |
1259 | cp_set_rxbufsize(cp); /* set new rx buf size */ | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | spin_lock_irqsave(&cp->lock, flags); | |
1264 | ||
1265 | cp_stop_hw(cp); /* stop h/w and free rings */ | |
1266 | cp_clean_rings(cp); | |
1267 | ||
1268 | dev->mtu = new_mtu; | |
1269 | cp_set_rxbufsize(cp); /* set new rx buf size */ | |
1270 | ||
1271 | rc = cp_init_rings(cp); /* realloc and restart h/w */ | |
1272 | cp_start_hw(cp); | |
1273 | ||
1274 | spin_unlock_irqrestore(&cp->lock, flags); | |
1275 | ||
1276 | return rc; | |
1277 | } | |
1278 | #endif /* BROKEN */ | |
1279 | ||
f71e1309 | 1280 | static const char mii_2_8139_map[8] = { |
1da177e4 LT |
1281 | BasicModeCtrl, |
1282 | BasicModeStatus, | |
1283 | 0, | |
1284 | 0, | |
1285 | NWayAdvert, | |
1286 | NWayLPAR, | |
1287 | NWayExpansion, | |
1288 | 0 | |
1289 | }; | |
1290 | ||
1291 | static int mdio_read(struct net_device *dev, int phy_id, int location) | |
1292 | { | |
1293 | struct cp_private *cp = netdev_priv(dev); | |
1294 | ||
1295 | return location < 8 && mii_2_8139_map[location] ? | |
1296 | readw(cp->regs + mii_2_8139_map[location]) : 0; | |
1297 | } | |
1298 | ||
1299 | ||
1300 | static void mdio_write(struct net_device *dev, int phy_id, int location, | |
1301 | int value) | |
1302 | { | |
1303 | struct cp_private *cp = netdev_priv(dev); | |
1304 | ||
1305 | if (location == 0) { | |
1306 | cpw8(Cfg9346, Cfg9346_Unlock); | |
1307 | cpw16(BasicModeCtrl, value); | |
1308 | cpw8(Cfg9346, Cfg9346_Lock); | |
1309 | } else if (location < 8 && mii_2_8139_map[location]) | |
1310 | cpw16(mii_2_8139_map[location], value); | |
1311 | } | |
1312 | ||
1313 | /* Set the ethtool Wake-on-LAN settings */ | |
1314 | static int netdev_set_wol (struct cp_private *cp, | |
1315 | const struct ethtool_wolinfo *wol) | |
1316 | { | |
1317 | u8 options; | |
1318 | ||
1319 | options = cpr8 (Config3) & ~(LinkUp | MagicPacket); | |
1320 | /* If WOL is being disabled, no need for complexity */ | |
1321 | if (wol->wolopts) { | |
1322 | if (wol->wolopts & WAKE_PHY) options |= LinkUp; | |
1323 | if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket; | |
1324 | } | |
1325 | ||
1326 | cpw8 (Cfg9346, Cfg9346_Unlock); | |
1327 | cpw8 (Config3, options); | |
1328 | cpw8 (Cfg9346, Cfg9346_Lock); | |
1329 | ||
1330 | options = 0; /* Paranoia setting */ | |
1331 | options = cpr8 (Config5) & ~(UWF | MWF | BWF); | |
1332 | /* If WOL is being disabled, no need for complexity */ | |
1333 | if (wol->wolopts) { | |
1334 | if (wol->wolopts & WAKE_UCAST) options |= UWF; | |
1335 | if (wol->wolopts & WAKE_BCAST) options |= BWF; | |
1336 | if (wol->wolopts & WAKE_MCAST) options |= MWF; | |
1337 | } | |
1338 | ||
1339 | cpw8 (Config5, options); | |
1340 | ||
1341 | cp->wol_enabled = (wol->wolopts) ? 1 : 0; | |
1342 | ||
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | /* Get the ethtool Wake-on-LAN settings */ | |
1347 | static void netdev_get_wol (struct cp_private *cp, | |
1348 | struct ethtool_wolinfo *wol) | |
1349 | { | |
1350 | u8 options; | |
1351 | ||
1352 | wol->wolopts = 0; /* Start from scratch */ | |
1353 | wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC | | |
1354 | WAKE_MCAST | WAKE_UCAST; | |
1355 | /* We don't need to go on if WOL is disabled */ | |
1356 | if (!cp->wol_enabled) return; | |
f3b197ac | 1357 | |
1da177e4 LT |
1358 | options = cpr8 (Config3); |
1359 | if (options & LinkUp) wol->wolopts |= WAKE_PHY; | |
1360 | if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC; | |
1361 | ||
1362 | options = 0; /* Paranoia setting */ | |
1363 | options = cpr8 (Config5); | |
1364 | if (options & UWF) wol->wolopts |= WAKE_UCAST; | |
1365 | if (options & BWF) wol->wolopts |= WAKE_BCAST; | |
1366 | if (options & MWF) wol->wolopts |= WAKE_MCAST; | |
1367 | } | |
1368 | ||
1369 | static void cp_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info) | |
1370 | { | |
1371 | struct cp_private *cp = netdev_priv(dev); | |
1372 | ||
1373 | strcpy (info->driver, DRV_NAME); | |
1374 | strcpy (info->version, DRV_VERSION); | |
1375 | strcpy (info->bus_info, pci_name(cp->pdev)); | |
1376 | } | |
1377 | ||
1378 | static int cp_get_regs_len(struct net_device *dev) | |
1379 | { | |
1380 | return CP_REGS_SIZE; | |
1381 | } | |
1382 | ||
b9f2c044 | 1383 | static int cp_get_sset_count (struct net_device *dev, int sset) |
1da177e4 | 1384 | { |
b9f2c044 JG |
1385 | switch (sset) { |
1386 | case ETH_SS_STATS: | |
1387 | return CP_NUM_STATS; | |
1388 | default: | |
1389 | return -EOPNOTSUPP; | |
1390 | } | |
1da177e4 LT |
1391 | } |
1392 | ||
1393 | static int cp_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1394 | { | |
1395 | struct cp_private *cp = netdev_priv(dev); | |
1396 | int rc; | |
1397 | unsigned long flags; | |
1398 | ||
1399 | spin_lock_irqsave(&cp->lock, flags); | |
1400 | rc = mii_ethtool_gset(&cp->mii_if, cmd); | |
1401 | spin_unlock_irqrestore(&cp->lock, flags); | |
1402 | ||
1403 | return rc; | |
1404 | } | |
1405 | ||
1406 | static int cp_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1407 | { | |
1408 | struct cp_private *cp = netdev_priv(dev); | |
1409 | int rc; | |
1410 | unsigned long flags; | |
1411 | ||
1412 | spin_lock_irqsave(&cp->lock, flags); | |
1413 | rc = mii_ethtool_sset(&cp->mii_if, cmd); | |
1414 | spin_unlock_irqrestore(&cp->lock, flags); | |
1415 | ||
1416 | return rc; | |
1417 | } | |
1418 | ||
1419 | static int cp_nway_reset(struct net_device *dev) | |
1420 | { | |
1421 | struct cp_private *cp = netdev_priv(dev); | |
1422 | return mii_nway_restart(&cp->mii_if); | |
1423 | } | |
1424 | ||
1425 | static u32 cp_get_msglevel(struct net_device *dev) | |
1426 | { | |
1427 | struct cp_private *cp = netdev_priv(dev); | |
1428 | return cp->msg_enable; | |
1429 | } | |
1430 | ||
1431 | static void cp_set_msglevel(struct net_device *dev, u32 value) | |
1432 | { | |
1433 | struct cp_private *cp = netdev_priv(dev); | |
1434 | cp->msg_enable = value; | |
1435 | } | |
1436 | ||
1437 | static u32 cp_get_rx_csum(struct net_device *dev) | |
1438 | { | |
1439 | struct cp_private *cp = netdev_priv(dev); | |
1440 | return (cpr16(CpCmd) & RxChkSum) ? 1 : 0; | |
1441 | } | |
1442 | ||
1443 | static int cp_set_rx_csum(struct net_device *dev, u32 data) | |
1444 | { | |
1445 | struct cp_private *cp = netdev_priv(dev); | |
1446 | u16 cmd = cp->cpcmd, newcmd; | |
1447 | ||
1448 | newcmd = cmd; | |
1449 | ||
1450 | if (data) | |
1451 | newcmd |= RxChkSum; | |
1452 | else | |
1453 | newcmd &= ~RxChkSum; | |
1454 | ||
1455 | if (newcmd != cmd) { | |
1456 | unsigned long flags; | |
1457 | ||
1458 | spin_lock_irqsave(&cp->lock, flags); | |
1459 | cp->cpcmd = newcmd; | |
1460 | cpw16_f(CpCmd, newcmd); | |
1461 | spin_unlock_irqrestore(&cp->lock, flags); | |
1462 | } | |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
1467 | static void cp_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1468 | void *p) | |
1469 | { | |
1470 | struct cp_private *cp = netdev_priv(dev); | |
1471 | unsigned long flags; | |
1472 | ||
1473 | if (regs->len < CP_REGS_SIZE) | |
1474 | return /* -EINVAL */; | |
1475 | ||
1476 | regs->version = CP_REGS_VER; | |
1477 | ||
1478 | spin_lock_irqsave(&cp->lock, flags); | |
1479 | memcpy_fromio(p, cp->regs, CP_REGS_SIZE); | |
1480 | spin_unlock_irqrestore(&cp->lock, flags); | |
1481 | } | |
1482 | ||
1483 | static void cp_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol) | |
1484 | { | |
1485 | struct cp_private *cp = netdev_priv(dev); | |
1486 | unsigned long flags; | |
1487 | ||
1488 | spin_lock_irqsave (&cp->lock, flags); | |
1489 | netdev_get_wol (cp, wol); | |
1490 | spin_unlock_irqrestore (&cp->lock, flags); | |
1491 | } | |
1492 | ||
1493 | static int cp_set_wol (struct net_device *dev, struct ethtool_wolinfo *wol) | |
1494 | { | |
1495 | struct cp_private *cp = netdev_priv(dev); | |
1496 | unsigned long flags; | |
1497 | int rc; | |
1498 | ||
1499 | spin_lock_irqsave (&cp->lock, flags); | |
1500 | rc = netdev_set_wol (cp, wol); | |
1501 | spin_unlock_irqrestore (&cp->lock, flags); | |
1502 | ||
1503 | return rc; | |
1504 | } | |
1505 | ||
1506 | static void cp_get_strings (struct net_device *dev, u32 stringset, u8 *buf) | |
1507 | { | |
1508 | switch (stringset) { | |
1509 | case ETH_SS_STATS: | |
1510 | memcpy(buf, ðtool_stats_keys, sizeof(ethtool_stats_keys)); | |
1511 | break; | |
1512 | default: | |
1513 | BUG(); | |
1514 | break; | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | static void cp_get_ethtool_stats (struct net_device *dev, | |
1519 | struct ethtool_stats *estats, u64 *tmp_stats) | |
1520 | { | |
1521 | struct cp_private *cp = netdev_priv(dev); | |
8b512927 SH |
1522 | struct cp_dma_stats *nic_stats; |
1523 | dma_addr_t dma; | |
1da177e4 LT |
1524 | int i; |
1525 | ||
6cc92cdd JG |
1526 | nic_stats = dma_alloc_coherent(&cp->pdev->dev, sizeof(*nic_stats), |
1527 | &dma, GFP_KERNEL); | |
8b512927 SH |
1528 | if (!nic_stats) |
1529 | return; | |
97f568d8 | 1530 | |
1da177e4 | 1531 | /* begin NIC statistics dump */ |
8b512927 SH |
1532 | cpw32(StatsAddr + 4, (u64)dma >> 32); |
1533 | cpw32(StatsAddr, ((u64)dma & DMA_32BIT_MASK) | DumpStats); | |
1da177e4 LT |
1534 | cpr32(StatsAddr); |
1535 | ||
97f568d8 | 1536 | for (i = 0; i < 1000; i++) { |
1da177e4 LT |
1537 | if ((cpr32(StatsAddr) & DumpStats) == 0) |
1538 | break; | |
97f568d8 | 1539 | udelay(10); |
1da177e4 | 1540 | } |
97f568d8 SH |
1541 | cpw32(StatsAddr, 0); |
1542 | cpw32(StatsAddr + 4, 0); | |
8b512927 | 1543 | cpr32(StatsAddr); |
1da177e4 LT |
1544 | |
1545 | i = 0; | |
8b512927 SH |
1546 | tmp_stats[i++] = le64_to_cpu(nic_stats->tx_ok); |
1547 | tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok); | |
1548 | tmp_stats[i++] = le64_to_cpu(nic_stats->tx_err); | |
1549 | tmp_stats[i++] = le32_to_cpu(nic_stats->rx_err); | |
1550 | tmp_stats[i++] = le16_to_cpu(nic_stats->rx_fifo); | |
1551 | tmp_stats[i++] = le16_to_cpu(nic_stats->frame_align); | |
1552 | tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_1col); | |
1553 | tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_mcol); | |
1554 | tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_phys); | |
1555 | tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_bcast); | |
1556 | tmp_stats[i++] = le32_to_cpu(nic_stats->rx_ok_mcast); | |
1557 | tmp_stats[i++] = le16_to_cpu(nic_stats->tx_abort); | |
1558 | tmp_stats[i++] = le16_to_cpu(nic_stats->tx_underrun); | |
1da177e4 | 1559 | tmp_stats[i++] = cp->cp_stats.rx_frags; |
5d9428de | 1560 | BUG_ON(i != CP_NUM_STATS); |
8b512927 | 1561 | |
6cc92cdd | 1562 | dma_free_coherent(&cp->pdev->dev, sizeof(*nic_stats), nic_stats, dma); |
1da177e4 LT |
1563 | } |
1564 | ||
7282d491 | 1565 | static const struct ethtool_ops cp_ethtool_ops = { |
1da177e4 LT |
1566 | .get_drvinfo = cp_get_drvinfo, |
1567 | .get_regs_len = cp_get_regs_len, | |
b9f2c044 | 1568 | .get_sset_count = cp_get_sset_count, |
1da177e4 LT |
1569 | .get_settings = cp_get_settings, |
1570 | .set_settings = cp_set_settings, | |
1571 | .nway_reset = cp_nway_reset, | |
1572 | .get_link = ethtool_op_get_link, | |
1573 | .get_msglevel = cp_get_msglevel, | |
1574 | .set_msglevel = cp_set_msglevel, | |
1575 | .get_rx_csum = cp_get_rx_csum, | |
1576 | .set_rx_csum = cp_set_rx_csum, | |
1da177e4 | 1577 | .set_tx_csum = ethtool_op_set_tx_csum, /* local! */ |
1da177e4 | 1578 | .set_sg = ethtool_op_set_sg, |
fcec3456 | 1579 | .set_tso = ethtool_op_set_tso, |
1da177e4 LT |
1580 | .get_regs = cp_get_regs, |
1581 | .get_wol = cp_get_wol, | |
1582 | .set_wol = cp_set_wol, | |
1583 | .get_strings = cp_get_strings, | |
1584 | .get_ethtool_stats = cp_get_ethtool_stats, | |
722fdb33 PC |
1585 | .get_eeprom_len = cp_get_eeprom_len, |
1586 | .get_eeprom = cp_get_eeprom, | |
1587 | .set_eeprom = cp_set_eeprom, | |
1da177e4 LT |
1588 | }; |
1589 | ||
1590 | static int cp_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) | |
1591 | { | |
1592 | struct cp_private *cp = netdev_priv(dev); | |
1593 | int rc; | |
1594 | unsigned long flags; | |
1595 | ||
1596 | if (!netif_running(dev)) | |
1597 | return -EINVAL; | |
1598 | ||
1599 | spin_lock_irqsave(&cp->lock, flags); | |
1600 | rc = generic_mii_ioctl(&cp->mii_if, if_mii(rq), cmd, NULL); | |
1601 | spin_unlock_irqrestore(&cp->lock, flags); | |
1602 | return rc; | |
1603 | } | |
1604 | ||
1605 | /* Serial EEPROM section. */ | |
1606 | ||
1607 | /* EEPROM_Ctrl bits. */ | |
1608 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ | |
1609 | #define EE_CS 0x08 /* EEPROM chip select. */ | |
1610 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ | |
1611 | #define EE_WRITE_0 0x00 | |
1612 | #define EE_WRITE_1 0x02 | |
1613 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ | |
1614 | #define EE_ENB (0x80 | EE_CS) | |
1615 | ||
1616 | /* Delay between EEPROM clock transitions. | |
1617 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. | |
1618 | */ | |
1619 | ||
1620 | #define eeprom_delay() readl(ee_addr) | |
1621 | ||
1622 | /* The EEPROM commands include the alway-set leading bit. */ | |
722fdb33 | 1623 | #define EE_EXTEND_CMD (4) |
1da177e4 LT |
1624 | #define EE_WRITE_CMD (5) |
1625 | #define EE_READ_CMD (6) | |
1626 | #define EE_ERASE_CMD (7) | |
1627 | ||
722fdb33 PC |
1628 | #define EE_EWDS_ADDR (0) |
1629 | #define EE_WRAL_ADDR (1) | |
1630 | #define EE_ERAL_ADDR (2) | |
1631 | #define EE_EWEN_ADDR (3) | |
1632 | ||
1633 | #define CP_EEPROM_MAGIC PCI_DEVICE_ID_REALTEK_8139 | |
1da177e4 | 1634 | |
722fdb33 PC |
1635 | static void eeprom_cmd_start(void __iomem *ee_addr) |
1636 | { | |
1da177e4 LT |
1637 | writeb (EE_ENB & ~EE_CS, ee_addr); |
1638 | writeb (EE_ENB, ee_addr); | |
1639 | eeprom_delay (); | |
722fdb33 | 1640 | } |
1da177e4 | 1641 | |
722fdb33 PC |
1642 | static void eeprom_cmd(void __iomem *ee_addr, int cmd, int cmd_len) |
1643 | { | |
1644 | int i; | |
1645 | ||
1646 | /* Shift the command bits out. */ | |
1647 | for (i = cmd_len - 1; i >= 0; i--) { | |
1648 | int dataval = (cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1da177e4 LT |
1649 | writeb (EE_ENB | dataval, ee_addr); |
1650 | eeprom_delay (); | |
1651 | writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1652 | eeprom_delay (); | |
1653 | } | |
1654 | writeb (EE_ENB, ee_addr); | |
1655 | eeprom_delay (); | |
722fdb33 PC |
1656 | } |
1657 | ||
1658 | static void eeprom_cmd_end(void __iomem *ee_addr) | |
1659 | { | |
1660 | writeb (~EE_CS, ee_addr); | |
1661 | eeprom_delay (); | |
1662 | } | |
1663 | ||
1664 | static void eeprom_extend_cmd(void __iomem *ee_addr, int extend_cmd, | |
1665 | int addr_len) | |
1666 | { | |
1667 | int cmd = (EE_EXTEND_CMD << addr_len) | (extend_cmd << (addr_len - 2)); | |
1668 | ||
1669 | eeprom_cmd_start(ee_addr); | |
1670 | eeprom_cmd(ee_addr, cmd, 3 + addr_len); | |
1671 | eeprom_cmd_end(ee_addr); | |
1672 | } | |
1673 | ||
1674 | static u16 read_eeprom (void __iomem *ioaddr, int location, int addr_len) | |
1675 | { | |
1676 | int i; | |
1677 | u16 retval = 0; | |
1678 | void __iomem *ee_addr = ioaddr + Cfg9346; | |
1679 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1680 | ||
1681 | eeprom_cmd_start(ee_addr); | |
1682 | eeprom_cmd(ee_addr, read_cmd, 3 + addr_len); | |
1da177e4 LT |
1683 | |
1684 | for (i = 16; i > 0; i--) { | |
1685 | writeb (EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1686 | eeprom_delay (); | |
1687 | retval = | |
1688 | (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 : | |
1689 | 0); | |
1690 | writeb (EE_ENB, ee_addr); | |
1691 | eeprom_delay (); | |
1692 | } | |
1693 | ||
722fdb33 | 1694 | eeprom_cmd_end(ee_addr); |
1da177e4 LT |
1695 | |
1696 | return retval; | |
1697 | } | |
1698 | ||
722fdb33 PC |
1699 | static void write_eeprom(void __iomem *ioaddr, int location, u16 val, |
1700 | int addr_len) | |
1701 | { | |
1702 | int i; | |
1703 | void __iomem *ee_addr = ioaddr + Cfg9346; | |
1704 | int write_cmd = location | (EE_WRITE_CMD << addr_len); | |
1705 | ||
1706 | eeprom_extend_cmd(ee_addr, EE_EWEN_ADDR, addr_len); | |
1707 | ||
1708 | eeprom_cmd_start(ee_addr); | |
1709 | eeprom_cmd(ee_addr, write_cmd, 3 + addr_len); | |
1710 | eeprom_cmd(ee_addr, val, 16); | |
1711 | eeprom_cmd_end(ee_addr); | |
1712 | ||
1713 | eeprom_cmd_start(ee_addr); | |
1714 | for (i = 0; i < 20000; i++) | |
1715 | if (readb(ee_addr) & EE_DATA_READ) | |
1716 | break; | |
1717 | eeprom_cmd_end(ee_addr); | |
1718 | ||
1719 | eeprom_extend_cmd(ee_addr, EE_EWDS_ADDR, addr_len); | |
1720 | } | |
1721 | ||
1722 | static int cp_get_eeprom_len(struct net_device *dev) | |
1723 | { | |
1724 | struct cp_private *cp = netdev_priv(dev); | |
1725 | int size; | |
1726 | ||
1727 | spin_lock_irq(&cp->lock); | |
1728 | size = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 256 : 128; | |
1729 | spin_unlock_irq(&cp->lock); | |
1730 | ||
1731 | return size; | |
1732 | } | |
1733 | ||
1734 | static int cp_get_eeprom(struct net_device *dev, | |
1735 | struct ethtool_eeprom *eeprom, u8 *data) | |
1736 | { | |
1737 | struct cp_private *cp = netdev_priv(dev); | |
1738 | unsigned int addr_len; | |
1739 | u16 val; | |
1740 | u32 offset = eeprom->offset >> 1; | |
1741 | u32 len = eeprom->len; | |
1742 | u32 i = 0; | |
1743 | ||
1744 | eeprom->magic = CP_EEPROM_MAGIC; | |
1745 | ||
1746 | spin_lock_irq(&cp->lock); | |
1747 | ||
1748 | addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6; | |
1749 | ||
1750 | if (eeprom->offset & 1) { | |
1751 | val = read_eeprom(cp->regs, offset, addr_len); | |
1752 | data[i++] = (u8)(val >> 8); | |
1753 | offset++; | |
1754 | } | |
1755 | ||
1756 | while (i < len - 1) { | |
1757 | val = read_eeprom(cp->regs, offset, addr_len); | |
1758 | data[i++] = (u8)val; | |
1759 | data[i++] = (u8)(val >> 8); | |
1760 | offset++; | |
1761 | } | |
1762 | ||
1763 | if (i < len) { | |
1764 | val = read_eeprom(cp->regs, offset, addr_len); | |
1765 | data[i] = (u8)val; | |
1766 | } | |
1767 | ||
1768 | spin_unlock_irq(&cp->lock); | |
1769 | return 0; | |
1770 | } | |
1771 | ||
1772 | static int cp_set_eeprom(struct net_device *dev, | |
1773 | struct ethtool_eeprom *eeprom, u8 *data) | |
1774 | { | |
1775 | struct cp_private *cp = netdev_priv(dev); | |
1776 | unsigned int addr_len; | |
1777 | u16 val; | |
1778 | u32 offset = eeprom->offset >> 1; | |
1779 | u32 len = eeprom->len; | |
1780 | u32 i = 0; | |
1781 | ||
1782 | if (eeprom->magic != CP_EEPROM_MAGIC) | |
1783 | return -EINVAL; | |
1784 | ||
1785 | spin_lock_irq(&cp->lock); | |
1786 | ||
1787 | addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6; | |
1788 | ||
1789 | if (eeprom->offset & 1) { | |
1790 | val = read_eeprom(cp->regs, offset, addr_len) & 0xff; | |
1791 | val |= (u16)data[i++] << 8; | |
1792 | write_eeprom(cp->regs, offset, val, addr_len); | |
1793 | offset++; | |
1794 | } | |
1795 | ||
1796 | while (i < len - 1) { | |
1797 | val = (u16)data[i++]; | |
1798 | val |= (u16)data[i++] << 8; | |
1799 | write_eeprom(cp->regs, offset, val, addr_len); | |
1800 | offset++; | |
1801 | } | |
1802 | ||
1803 | if (i < len) { | |
1804 | val = read_eeprom(cp->regs, offset, addr_len) & 0xff00; | |
1805 | val |= (u16)data[i]; | |
1806 | write_eeprom(cp->regs, offset, val, addr_len); | |
1807 | } | |
1808 | ||
1809 | spin_unlock_irq(&cp->lock); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
1da177e4 LT |
1813 | /* Put the board into D3cold state and wait for WakeUp signal */ |
1814 | static void cp_set_d3_state (struct cp_private *cp) | |
1815 | { | |
1816 | pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */ | |
1817 | pci_set_power_state (cp->pdev, PCI_D3hot); | |
1818 | } | |
1819 | ||
48dfcde4 SH |
1820 | static const struct net_device_ops cp_netdev_ops = { |
1821 | .ndo_open = cp_open, | |
1822 | .ndo_stop = cp_close, | |
1823 | .ndo_validate_addr = eth_validate_addr, | |
1824 | .ndo_set_multicast_list = cp_set_rx_mode, | |
1825 | .ndo_get_stats = cp_get_stats, | |
1826 | .ndo_do_ioctl = cp_ioctl, | |
00829823 | 1827 | .ndo_start_xmit = cp_start_xmit, |
48dfcde4 SH |
1828 | .ndo_tx_timeout = cp_tx_timeout, |
1829 | #if CP_VLAN_TAG_USED | |
1830 | .ndo_vlan_rx_register = cp_vlan_rx_register, | |
1831 | #endif | |
1832 | #ifdef BROKEN | |
1833 | .ndo_change_mtu = cp_change_mtu, | |
1834 | #endif | |
1835 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1836 | .ndo_poll_controller = cp_poll_controller, | |
1837 | #endif | |
1838 | }; | |
1839 | ||
1da177e4 LT |
1840 | static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
1841 | { | |
1842 | struct net_device *dev; | |
1843 | struct cp_private *cp; | |
1844 | int rc; | |
1845 | void __iomem *regs; | |
2427ddd8 | 1846 | resource_size_t pciaddr; |
1da177e4 | 1847 | unsigned int addr_len, i, pci_using_dac; |
1da177e4 LT |
1848 | |
1849 | #ifndef MODULE | |
1850 | static int version_printed; | |
1851 | if (version_printed++ == 0) | |
1852 | printk("%s", version); | |
1853 | #endif | |
1854 | ||
1da177e4 | 1855 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
44c10138 | 1856 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision < 0x20) { |
de4549ca SH |
1857 | dev_info(&pdev->dev, |
1858 | "This (id %04x:%04x rev %02x) is not an 8139C+ compatible chip, use 8139too\n", | |
44c10138 | 1859 | pdev->vendor, pdev->device, pdev->revision); |
1da177e4 LT |
1860 | return -ENODEV; |
1861 | } | |
1862 | ||
1863 | dev = alloc_etherdev(sizeof(struct cp_private)); | |
1864 | if (!dev) | |
1865 | return -ENOMEM; | |
1da177e4 LT |
1866 | SET_NETDEV_DEV(dev, &pdev->dev); |
1867 | ||
1868 | cp = netdev_priv(dev); | |
1869 | cp->pdev = pdev; | |
1870 | cp->dev = dev; | |
1871 | cp->msg_enable = (debug < 0 ? CP_DEF_MSG_ENABLE : debug); | |
1872 | spin_lock_init (&cp->lock); | |
1873 | cp->mii_if.dev = dev; | |
1874 | cp->mii_if.mdio_read = mdio_read; | |
1875 | cp->mii_if.mdio_write = mdio_write; | |
1876 | cp->mii_if.phy_id = CP_INTERNAL_PHY; | |
1877 | cp->mii_if.phy_id_mask = 0x1f; | |
1878 | cp->mii_if.reg_num_mask = 0x1f; | |
1879 | cp_set_rxbufsize(cp); | |
1880 | ||
1881 | rc = pci_enable_device(pdev); | |
1882 | if (rc) | |
1883 | goto err_out_free; | |
1884 | ||
1885 | rc = pci_set_mwi(pdev); | |
1886 | if (rc) | |
1887 | goto err_out_disable; | |
1888 | ||
1889 | rc = pci_request_regions(pdev, DRV_NAME); | |
1890 | if (rc) | |
1891 | goto err_out_mwi; | |
1892 | ||
1893 | pciaddr = pci_resource_start(pdev, 1); | |
1894 | if (!pciaddr) { | |
1895 | rc = -EIO; | |
9b91cf9d | 1896 | dev_err(&pdev->dev, "no MMIO resource\n"); |
1da177e4 LT |
1897 | goto err_out_res; |
1898 | } | |
1899 | if (pci_resource_len(pdev, 1) < CP_REGS_SIZE) { | |
1900 | rc = -EIO; | |
9b91cf9d | 1901 | dev_err(&pdev->dev, "MMIO resource (%llx) too small\n", |
2e8a538d | 1902 | (unsigned long long)pci_resource_len(pdev, 1)); |
1da177e4 LT |
1903 | goto err_out_res; |
1904 | } | |
1905 | ||
1906 | /* Configure DMA attributes. */ | |
1907 | if ((sizeof(dma_addr_t) > 4) && | |
8662d061 TK |
1908 | !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) && |
1909 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { | |
1da177e4 LT |
1910 | pci_using_dac = 1; |
1911 | } else { | |
1912 | pci_using_dac = 0; | |
1913 | ||
8662d061 | 1914 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 | 1915 | if (rc) { |
9b91cf9d | 1916 | dev_err(&pdev->dev, |
2e8a538d | 1917 | "No usable DMA configuration, aborting.\n"); |
1da177e4 LT |
1918 | goto err_out_res; |
1919 | } | |
8662d061 | 1920 | rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 | 1921 | if (rc) { |
9b91cf9d | 1922 | dev_err(&pdev->dev, |
2e8a538d JG |
1923 | "No usable consistent DMA configuration, " |
1924 | "aborting.\n"); | |
1da177e4 LT |
1925 | goto err_out_res; |
1926 | } | |
1927 | } | |
1928 | ||
1929 | cp->cpcmd = (pci_using_dac ? PCIDAC : 0) | | |
1930 | PCIMulRW | RxChkSum | CpRxOn | CpTxOn; | |
1931 | ||
1932 | regs = ioremap(pciaddr, CP_REGS_SIZE); | |
1933 | if (!regs) { | |
1934 | rc = -EIO; | |
4626dd46 | 1935 | dev_err(&pdev->dev, "Cannot map PCI MMIO (%Lx@%Lx)\n", |
2e8a538d JG |
1936 | (unsigned long long)pci_resource_len(pdev, 1), |
1937 | (unsigned long long)pciaddr); | |
1da177e4 LT |
1938 | goto err_out_res; |
1939 | } | |
1940 | dev->base_addr = (unsigned long) regs; | |
1941 | cp->regs = regs; | |
1942 | ||
1943 | cp_stop_hw(cp); | |
1944 | ||
1945 | /* read MAC address from EEPROM */ | |
1946 | addr_len = read_eeprom (regs, 0, 8) == 0x8129 ? 8 : 6; | |
1947 | for (i = 0; i < 3; i++) | |
03233b90 AV |
1948 | ((__le16 *) (dev->dev_addr))[i] = |
1949 | cpu_to_le16(read_eeprom (regs, i + 7, addr_len)); | |
bb0ce608 | 1950 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 | 1951 | |
48dfcde4 | 1952 | dev->netdev_ops = &cp_netdev_ops; |
bea3348e | 1953 | netif_napi_add(dev, &cp->napi, cp_rx_poll, 16); |
1da177e4 | 1954 | dev->ethtool_ops = &cp_ethtool_ops; |
1da177e4 | 1955 | dev->watchdog_timeo = TX_TIMEOUT; |
1da177e4 LT |
1956 | |
1957 | #if CP_VLAN_TAG_USED | |
1958 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1da177e4 LT |
1959 | #endif |
1960 | ||
1961 | if (pci_using_dac) | |
1962 | dev->features |= NETIF_F_HIGHDMA; | |
1963 | ||
fcec3456 JG |
1964 | #if 0 /* disabled by default until verified */ |
1965 | dev->features |= NETIF_F_TSO; | |
1966 | #endif | |
1967 | ||
1da177e4 LT |
1968 | dev->irq = pdev->irq; |
1969 | ||
1970 | rc = register_netdev(dev); | |
1971 | if (rc) | |
1972 | goto err_out_iomap; | |
1973 | ||
1974 | printk (KERN_INFO "%s: RTL-8139C+ at 0x%lx, " | |
e174961c | 1975 | "%pM, IRQ %d\n", |
1da177e4 LT |
1976 | dev->name, |
1977 | dev->base_addr, | |
e174961c | 1978 | dev->dev_addr, |
1da177e4 LT |
1979 | dev->irq); |
1980 | ||
1981 | pci_set_drvdata(pdev, dev); | |
1982 | ||
1983 | /* enable busmastering and memory-write-invalidate */ | |
1984 | pci_set_master(pdev); | |
1985 | ||
2e8a538d JG |
1986 | if (cp->wol_enabled) |
1987 | cp_set_d3_state (cp); | |
1da177e4 LT |
1988 | |
1989 | return 0; | |
1990 | ||
1991 | err_out_iomap: | |
1992 | iounmap(regs); | |
1993 | err_out_res: | |
1994 | pci_release_regions(pdev); | |
1995 | err_out_mwi: | |
1996 | pci_clear_mwi(pdev); | |
1997 | err_out_disable: | |
1998 | pci_disable_device(pdev); | |
1999 | err_out_free: | |
2000 | free_netdev(dev); | |
2001 | return rc; | |
2002 | } | |
2003 | ||
2004 | static void cp_remove_one (struct pci_dev *pdev) | |
2005 | { | |
2006 | struct net_device *dev = pci_get_drvdata(pdev); | |
2007 | struct cp_private *cp = netdev_priv(dev); | |
2008 | ||
1da177e4 LT |
2009 | unregister_netdev(dev); |
2010 | iounmap(cp->regs); | |
2e8a538d JG |
2011 | if (cp->wol_enabled) |
2012 | pci_set_power_state (pdev, PCI_D0); | |
1da177e4 LT |
2013 | pci_release_regions(pdev); |
2014 | pci_clear_mwi(pdev); | |
2015 | pci_disable_device(pdev); | |
2016 | pci_set_drvdata(pdev, NULL); | |
2017 | free_netdev(dev); | |
2018 | } | |
2019 | ||
2020 | #ifdef CONFIG_PM | |
05adc3b7 | 2021 | static int cp_suspend (struct pci_dev *pdev, pm_message_t state) |
1da177e4 | 2022 | { |
7668a494 FR |
2023 | struct net_device *dev = pci_get_drvdata(pdev); |
2024 | struct cp_private *cp = netdev_priv(dev); | |
1da177e4 LT |
2025 | unsigned long flags; |
2026 | ||
7668a494 FR |
2027 | if (!netif_running(dev)) |
2028 | return 0; | |
1da177e4 LT |
2029 | |
2030 | netif_device_detach (dev); | |
2031 | netif_stop_queue (dev); | |
2032 | ||
2033 | spin_lock_irqsave (&cp->lock, flags); | |
2034 | ||
2035 | /* Disable Rx and Tx */ | |
2036 | cpw16 (IntrMask, 0); | |
2037 | cpw8 (Cmd, cpr8 (Cmd) & (~RxOn | ~TxOn)); | |
2038 | ||
2039 | spin_unlock_irqrestore (&cp->lock, flags); | |
2040 | ||
576cfa93 FR |
2041 | pci_save_state(pdev); |
2042 | pci_enable_wake(pdev, pci_choose_state(pdev, state), cp->wol_enabled); | |
2043 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1da177e4 LT |
2044 | |
2045 | return 0; | |
2046 | } | |
2047 | ||
2048 | static int cp_resume (struct pci_dev *pdev) | |
2049 | { | |
576cfa93 FR |
2050 | struct net_device *dev = pci_get_drvdata (pdev); |
2051 | struct cp_private *cp = netdev_priv(dev); | |
a4cf0761 | 2052 | unsigned long flags; |
1da177e4 | 2053 | |
576cfa93 FR |
2054 | if (!netif_running(dev)) |
2055 | return 0; | |
1da177e4 LT |
2056 | |
2057 | netif_device_attach (dev); | |
576cfa93 FR |
2058 | |
2059 | pci_set_power_state(pdev, PCI_D0); | |
2060 | pci_restore_state(pdev); | |
2061 | pci_enable_wake(pdev, PCI_D0, 0); | |
2062 | ||
2063 | /* FIXME: sh*t may happen if the Rx ring buffer is depleted */ | |
2064 | cp_init_rings_index (cp); | |
1da177e4 LT |
2065 | cp_init_hw (cp); |
2066 | netif_start_queue (dev); | |
a4cf0761 PO |
2067 | |
2068 | spin_lock_irqsave (&cp->lock, flags); | |
2069 | ||
2501f843 | 2070 | mii_check_media(&cp->mii_if, netif_msg_link(cp), false); |
a4cf0761 PO |
2071 | |
2072 | spin_unlock_irqrestore (&cp->lock, flags); | |
f3b197ac | 2073 | |
1da177e4 LT |
2074 | return 0; |
2075 | } | |
2076 | #endif /* CONFIG_PM */ | |
2077 | ||
2078 | static struct pci_driver cp_driver = { | |
2079 | .name = DRV_NAME, | |
2080 | .id_table = cp_pci_tbl, | |
2081 | .probe = cp_init_one, | |
2082 | .remove = cp_remove_one, | |
2083 | #ifdef CONFIG_PM | |
2084 | .resume = cp_resume, | |
2085 | .suspend = cp_suspend, | |
2086 | #endif | |
2087 | }; | |
2088 | ||
2089 | static int __init cp_init (void) | |
2090 | { | |
2091 | #ifdef MODULE | |
2092 | printk("%s", version); | |
2093 | #endif | |
29917620 | 2094 | return pci_register_driver(&cp_driver); |
1da177e4 LT |
2095 | } |
2096 | ||
2097 | static void __exit cp_exit (void) | |
2098 | { | |
2099 | pci_unregister_driver (&cp_driver); | |
2100 | } | |
2101 | ||
2102 | module_init(cp_init); | |
2103 | module_exit(cp_exit); |