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1 | /* | |
2 | * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver | |
3 | * | |
4 | * Copyright 2008 JMicron Technology Corporation | |
5 | * http://www.jmicron.com/ | |
6 | * | |
7 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/version.h> | |
25 | ||
26 | #define DRV_NAME "jme" | |
27 | #define DRV_VERSION "0.6" | |
28 | #define PFX DRV_NAME ": " | |
29 | ||
30 | #ifdef DEBUG | |
31 | #define dprintk(devname, fmt, args...) \ | |
32 | printk(KERN_DEBUG "%s: " fmt, devname, ## args) | |
33 | #else | |
34 | #define dprintk(devname, fmt, args...) | |
35 | #endif | |
36 | ||
37 | #ifdef TX_DEBUG | |
38 | #define tx_dbg(devname, fmt, args...) dprintk(devname, fmt, ## args) | |
39 | #else | |
40 | #define tx_dbg(args...) | |
41 | #endif | |
42 | ||
43 | #ifdef RX_DEBUG | |
44 | #define rx_dbg(devname, fmt, args...) dprintk(devname, fmt, ## args) | |
45 | #else | |
46 | #define rx_dbg(args...) | |
47 | #endif | |
48 | ||
49 | #ifdef CSUM_DEBUG | |
50 | #define csum_dbg(devname, fmt, args...) dprintk(devname, fmt, ## args) | |
51 | #else | |
52 | #define csum_dbg(args...) | |
53 | #endif | |
54 | ||
55 | #define jprintk(devname, fmt, args...) \ | |
56 | printk(KERN_INFO "%s: " fmt, devname, ## args) | |
57 | ||
58 | #define jeprintk(devname, fmt, args...) \ | |
59 | printk(KERN_ERR "%s: " fmt, devname, ## args) | |
60 | ||
61 | #define DEFAULT_MSG_ENABLE \ | |
62 | (NETIF_MSG_DRV | \ | |
63 | NETIF_MSG_PROBE | \ | |
64 | NETIF_MSG_LINK | \ | |
65 | NETIF_MSG_TIMER | \ | |
66 | NETIF_MSG_RX_ERR | \ | |
67 | NETIF_MSG_TX_ERR) | |
68 | ||
69 | #define PCI_CONF_DCSR_MRRS 0x59 | |
70 | #define PCI_CONF_DCSR_MRRS_MASK 0x70 | |
71 | enum pci_conf_dcsr_mrrs_vals { | |
72 | MRRS_128B = 0x00, | |
73 | MRRS_256B = 0x10, | |
74 | MRRS_512B = 0x20, | |
75 | MRRS_1024B = 0x30, | |
76 | MRRS_2048B = 0x40, | |
77 | MRRS_4096B = 0x50, | |
78 | }; | |
79 | ||
80 | #define MAX_ETHERNET_JUMBO_PACKET_SIZE 9216 | |
81 | #define MIN_ETHERNET_PACKET_SIZE 60 | |
82 | ||
83 | enum dynamic_pcc_values { | |
84 | PCC_P1 = 1, | |
85 | PCC_P2 = 2, | |
86 | PCC_P3 = 3, | |
87 | ||
88 | PCC_P1_TO = 1, | |
89 | PCC_P2_TO = 250, | |
90 | PCC_P3_TO = 1000, | |
91 | ||
92 | PCC_P1_CNT = 1, | |
93 | PCC_P2_CNT = 64, | |
94 | PCC_P3_CNT = 255, | |
95 | }; | |
96 | struct dynpcc_info { | |
97 | unsigned long last_bytes; | |
98 | unsigned long last_pkts; | |
99 | unsigned long intr_cnt; | |
100 | unsigned char cur; | |
101 | unsigned char attempt; | |
102 | unsigned char cnt; | |
103 | }; | |
104 | #define PCC_INTERVAL_US 100000 | |
105 | #define PCC_INTERVAL (HZ / (1000000/PCC_INTERVAL_US)) | |
106 | #define PCC_P3_THRESHOLD 3*1024*1024 | |
107 | #define PCC_P2_THRESHOLD 800 | |
108 | #define PCC_INTR_THRESHOLD 800 | |
109 | #define PCC_TX_TO 100 | |
110 | #define PCC_TX_CNT 16 | |
111 | ||
112 | /* | |
113 | * TX/RX Descriptors | |
114 | * | |
115 | * TX/RX Ring DESC Count Must be multiple of 16 | |
116 | * RX Ring DESC Count Must be <= 1024 | |
117 | */ | |
118 | #define RING_DESC_NR 512 /* Must be power of 2 */ | |
119 | #define RING_DESC_ALIGN 16 /* Descriptor alignment */ | |
120 | ||
121 | #define TX_DESC_SIZE 16 | |
122 | #define TX_RING_NR 8 | |
123 | #define TX_RING_ALLOC_SIZE (RING_DESC_NR * TX_DESC_SIZE) + TX_DESC_SIZE | |
124 | #define TX_RING_SIZE (RING_DESC_NR * TX_DESC_SIZE) | |
125 | ||
126 | struct txdesc { | |
127 | union { | |
128 | __u8 all[16]; | |
129 | __u32 dw[4]; | |
130 | struct { | |
131 | /* DW0 */ | |
132 | __u16 vlan; | |
133 | __u8 rsv1; | |
134 | __u8 flags; | |
135 | ||
136 | /* DW1 */ | |
137 | __u16 datalen; | |
138 | __u16 mss; | |
139 | ||
140 | /* DW2 */ | |
141 | __u16 pktsize; | |
142 | __u16 rsv2; | |
143 | ||
144 | /* DW3 */ | |
145 | __u32 bufaddr; | |
146 | } desc1; | |
147 | struct { | |
148 | /* DW0 */ | |
149 | __u16 rsv1; | |
150 | __u8 rsv2; | |
151 | __u8 flags; | |
152 | ||
153 | /* DW1 */ | |
154 | __u16 datalen; | |
155 | __u16 rsv3; | |
156 | ||
157 | /* DW2 */ | |
158 | __u32 bufaddrh; | |
159 | ||
160 | /* DW3 */ | |
161 | __u32 bufaddrl; | |
162 | } desc2; | |
163 | struct { | |
164 | /* DW0 */ | |
165 | __u8 ehdrsz; | |
166 | __u8 rsv1; | |
167 | __u8 rsv2; | |
168 | __u8 flags; | |
169 | ||
170 | /* DW1 */ | |
171 | __u16 trycnt; | |
172 | __u16 segcnt; | |
173 | ||
174 | /* DW2 */ | |
175 | __u16 pktsz; | |
176 | __u16 rsv3; | |
177 | ||
178 | /* DW3 */ | |
179 | __u32 bufaddrl; | |
180 | } descwb; | |
181 | }; | |
182 | }; | |
183 | enum jme_txdesc_flags_bits { | |
184 | TXFLAG_OWN = 0x80, | |
185 | TXFLAG_INT = 0x40, | |
186 | TXFLAG_64BIT = 0x20, | |
187 | TXFLAG_TCPCS = 0x10, | |
188 | TXFLAG_UDPCS = 0x08, | |
189 | TXFLAG_IPCS = 0x04, | |
190 | TXFLAG_LSEN = 0x02, | |
191 | TXFLAG_TAGON = 0x01, | |
192 | }; | |
193 | enum jme_rxdescwb_flags_bits { | |
194 | TXWBFLAG_OWN = 0x80, | |
195 | TXWBFLAG_INT = 0x40, | |
196 | TXWBFLAG_TMOUT = 0x20, | |
197 | TXWBFLAG_TRYOUT = 0x10, | |
198 | TXWBFLAG_COL = 0x08, | |
199 | ||
200 | TXWBFLAG_ALLERR = TXWBFLAG_TMOUT | | |
201 | TXWBFLAG_TRYOUT | | |
202 | TXWBFLAG_COL, | |
203 | }; | |
204 | ||
205 | ||
206 | #define RX_DESC_SIZE 16 | |
207 | #define RX_RING_NR 4 | |
208 | #define RX_RING_ALLOC_SIZE (RING_DESC_NR * RX_DESC_SIZE) + RX_DESC_SIZE | |
209 | #define RX_RING_SIZE (RING_DESC_NR * RX_DESC_SIZE) | |
210 | ||
211 | #define RX_BUF_DMA_ALIGN 8 | |
212 | #define RX_PREPAD_SIZE 10 | |
213 | #define ETH_CRC_LEN 2 | |
214 | #define RX_VLANHDR_LEN 2 | |
215 | #define RX_EXTRA_LEN (RX_PREPAD_SIZE + \ | |
216 | ETH_HLEN + \ | |
217 | ETH_CRC_LEN + \ | |
218 | RX_VLANHDR_LEN + \ | |
219 | RX_BUF_DMA_ALIGN) | |
220 | ||
221 | struct rxdesc { | |
222 | union { | |
223 | __u8 all[16]; | |
224 | __le32 dw[4]; | |
225 | struct { | |
226 | /* DW0 */ | |
227 | __le16 rsv2; | |
228 | __u8 rsv1; | |
229 | __u8 flags; | |
230 | ||
231 | /* DW1 */ | |
232 | __le16 datalen; | |
233 | __le16 wbcpl; | |
234 | ||
235 | /* DW2 */ | |
236 | __le32 bufaddrh; | |
237 | ||
238 | /* DW3 */ | |
239 | __le32 bufaddrl; | |
240 | } desc1; | |
241 | struct { | |
242 | /* DW0 */ | |
243 | __le16 vlan; | |
244 | __le16 flags; | |
245 | ||
246 | /* DW1 */ | |
247 | __le16 framesize; | |
248 | __u8 errstat; | |
249 | __u8 desccnt; | |
250 | ||
251 | /* DW2 */ | |
252 | __le32 rsshash; | |
253 | ||
254 | /* DW3 */ | |
255 | __u8 hashfun; | |
256 | __u8 hashtype; | |
257 | __le16 resrv; | |
258 | } descwb; | |
259 | }; | |
260 | }; | |
261 | enum jme_rxdesc_flags_bits { | |
262 | RXFLAG_OWN = 0x80, | |
263 | RXFLAG_INT = 0x40, | |
264 | RXFLAG_64BIT = 0x20, | |
265 | }; | |
266 | enum jme_rxwbdesc_flags_bits { | |
267 | RXWBFLAG_OWN = 0x8000, | |
268 | RXWBFLAG_INT = 0x4000, | |
269 | RXWBFLAG_MF = 0x2000, | |
270 | RXWBFLAG_64BIT = 0x2000, | |
271 | RXWBFLAG_TCPON = 0x1000, | |
272 | RXWBFLAG_UDPON = 0x0800, | |
273 | RXWBFLAG_IPCS = 0x0400, | |
274 | RXWBFLAG_TCPCS = 0x0200, | |
275 | RXWBFLAG_UDPCS = 0x0100, | |
276 | RXWBFLAG_TAGON = 0x0080, | |
277 | RXWBFLAG_IPV4 = 0x0040, | |
278 | RXWBFLAG_IPV6 = 0x0020, | |
279 | RXWBFLAG_PAUSE = 0x0010, | |
280 | RXWBFLAG_MAGIC = 0x0008, | |
281 | RXWBFLAG_WAKEUP = 0x0004, | |
282 | RXWBFLAG_DEST = 0x0003, | |
283 | RXWBFLAG_DEST_UNI = 0x0001, | |
284 | RXWBFLAG_DEST_MUL = 0x0002, | |
285 | RXWBFLAG_DEST_BRO = 0x0003, | |
286 | }; | |
287 | enum jme_rxwbdesc_desccnt_mask { | |
288 | RXWBDCNT_WBCPL = 0x80, | |
289 | RXWBDCNT_DCNT = 0x7F, | |
290 | }; | |
291 | enum jme_rxwbdesc_errstat_bits { | |
292 | RXWBERR_LIMIT = 0x80, | |
293 | RXWBERR_MIIER = 0x40, | |
294 | RXWBERR_NIBON = 0x20, | |
295 | RXWBERR_COLON = 0x10, | |
296 | RXWBERR_ABORT = 0x08, | |
297 | RXWBERR_SHORT = 0x04, | |
298 | RXWBERR_OVERUN = 0x02, | |
299 | RXWBERR_CRCERR = 0x01, | |
300 | RXWBERR_ALLERR = 0xFF, | |
301 | }; | |
302 | ||
303 | struct jme_buffer_info { | |
304 | struct sk_buff *skb; | |
305 | dma_addr_t mapping; | |
306 | int len; | |
307 | int nr_desc; | |
308 | }; | |
309 | ||
310 | struct jme_ring { | |
311 | void* alloc; /* pointer to allocated memory */ | |
312 | volatile void* desc; /* pointer to ring memory */ | |
313 | dma_addr_t dmaalloc; /* phys address of ring alloc */ | |
314 | dma_addr_t dma; /* phys address for ring dma */ | |
315 | ||
316 | /* Buffer information corresponding to each descriptor */ | |
317 | struct jme_buffer_info bufinf[RING_DESC_NR]; | |
318 | ||
319 | u16 next_to_use; | |
320 | u16 next_to_clean; | |
321 | ||
322 | atomic_t nr_free; | |
323 | }; | |
324 | ||
325 | #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21) | |
326 | #define NET_STAT(priv) priv->stats | |
327 | #define NETDEV_GET_STATS(netdev, fun_ptr) \ | |
328 | netdev->get_stats = fun_ptr | |
329 | #define DECLARE_NET_DEVICE_STATS struct net_device_stats stats; | |
330 | #else | |
331 | #define NET_STAT(priv) priv->dev->stats | |
332 | #define NETDEV_GET_STATS(netdev, fun_ptr) | |
333 | #define DECLARE_NET_DEVICE_STATS | |
334 | #endif | |
335 | ||
336 | /* | |
337 | * Jmac Adapter Private data | |
338 | */ | |
339 | #define SHADOW_REG_NR 8 | |
340 | struct jme_adapter { | |
341 | struct pci_dev *pdev; | |
342 | struct net_device *dev; | |
343 | void __iomem *regs; | |
344 | dma_addr_t shadow_dma; | |
345 | __u32 *shadow_regs; | |
346 | struct mii_if_info mii_if; | |
347 | struct jme_ring rxring[RX_RING_NR]; | |
348 | struct jme_ring txring[TX_RING_NR]; | |
349 | spinlock_t phy_lock; | |
350 | spinlock_t macaddr_lock; | |
351 | spinlock_t rxmcs_lock; | |
352 | struct tasklet_struct rxempty_task; | |
353 | struct tasklet_struct rxclean_task; | |
354 | struct tasklet_struct txclean_task; | |
355 | struct tasklet_struct linkch_task; | |
356 | struct tasklet_struct pcc_task; | |
357 | __u32 flags; | |
358 | __u32 reg_txcs; | |
359 | __u32 reg_txpfc; | |
360 | __u32 reg_rxcs; | |
361 | __u32 reg_rxmcs; | |
362 | __u32 reg_ghc; | |
363 | __u32 phylink; | |
364 | __u8 mrrs; | |
365 | unsigned int oldmtu; | |
366 | struct dynpcc_info dpi; | |
367 | atomic_t intr_sem; | |
368 | atomic_t link_changing; | |
369 | atomic_t tx_cleaning; | |
370 | atomic_t rx_cleaning; | |
371 | DECLARE_NET_DEVICE_STATS | |
372 | }; | |
373 | enum shadow_reg_val { | |
374 | SHADOW_IEVE = 0, | |
375 | }; | |
376 | enum jme_flags_bits { | |
377 | JME_FLAG_MSI = 0x00000001, | |
378 | }; | |
379 | #define WAIT_TASKLET_TIMEOUT 500 /* 500 ms */ | |
380 | #define TX_TIMEOUT (5*HZ) | |
381 | ||
382 | ||
383 | /* | |
384 | * MMaped I/O Resters | |
385 | */ | |
386 | enum jme_iomap_offsets { | |
387 | JME_MAC = 0x0000, | |
388 | JME_PHY = 0x0400, | |
389 | JME_MISC = 0x0800, | |
390 | JME_RSS = 0x0C00, | |
391 | }; | |
392 | ||
393 | enum jme_iomap_lens { | |
394 | JME_MAC_LEN = 0x80, | |
395 | JME_PHY_LEN = 0x58, | |
396 | JME_MISC_LEN = 0x98, | |
397 | JME_RSS_LEN = 0xFF, | |
398 | }; | |
399 | ||
400 | enum jme_iomap_regs { | |
401 | JME_TXCS = JME_MAC | 0x00, /* Transmit Control and Status */ | |
402 | JME_TXDBA_LO = JME_MAC | 0x04, /* Transmit Queue Desc Base Addr */ | |
403 | JME_TXDBA_HI = JME_MAC | 0x08, /* Transmit Queue Desc Base Addr */ | |
404 | JME_TXQDC = JME_MAC | 0x0C, /* Transmit Queue Desc Count */ | |
405 | JME_TXNDA = JME_MAC | 0x10, /* Transmit Queue Next Desc Addr */ | |
406 | JME_TXMCS = JME_MAC | 0x14, /* Transmit MAC Control Status */ | |
407 | JME_TXPFC = JME_MAC | 0x18, /* Transmit Pause Frame Control */ | |
408 | JME_TXTRHD = JME_MAC | 0x1C, /* Transmit Timer/Retry@Half-Dup */ | |
409 | ||
410 | JME_RXCS = JME_MAC | 0x20, /* Receive Control and Status */ | |
411 | JME_RXDBA_LO = JME_MAC | 0x24, /* Receive Queue Desc Base Addr */ | |
412 | JME_RXDBA_HI = JME_MAC | 0x28, /* Receive Queue Desc Base Addr */ | |
413 | JME_RXQDC = JME_MAC | 0x2C, /* Receive Queue Desc Count */ | |
414 | JME_RXNDA = JME_MAC | 0x30, /* Receive Queue Next Desc Addr */ | |
415 | JME_RXMCS = JME_MAC | 0x34, /* Receive MAC Control Status */ | |
416 | JME_RXUMA_LO = JME_MAC | 0x38, /* Receive Unicast MAC Address */ | |
417 | JME_RXUMA_HI = JME_MAC | 0x3C, /* Receive Unicast MAC Address */ | |
418 | JME_RXMCHT_LO = JME_MAC | 0x40, /* Recv Multicast Addr HashTable */ | |
419 | JME_RXMCHT_HI = JME_MAC | 0x44, /* Recv Multicast Addr HashTable */ | |
420 | JME_WFODP = JME_MAC | 0x48, /* Wakeup Frame Output Data Port */ | |
421 | JME_WFOI = JME_MAC | 0x4C, /* Wakeup Frame Output Interface */ | |
422 | ||
423 | JME_SMI = JME_MAC | 0x50, /* Station Management Interface */ | |
424 | JME_GHC = JME_MAC | 0x54, /* Global Host Control */ | |
425 | JME_PMCS = JME_MAC | 0x60, /* Power Management Control/Stat */ | |
426 | ||
427 | ||
428 | JME_PHY_CS = JME_PHY | 0x28, /* PHY Ctrl and Status Register */ | |
429 | JME_PHY_LINK = JME_PHY | 0x30, /* PHY Link Status Register */ | |
430 | JME_SMBCSR = JME_PHY | 0x40, /* SMB Control and Status */ | |
431 | ||
432 | ||
433 | JME_TMCSR = JME_MISC| 0x00, /* Timer Control/Status Register */ | |
434 | JME_GPREG0 = JME_MISC| 0x08, /* General purpose REG-0 */ | |
435 | JME_GPREG1 = JME_MISC| 0x0C, /* General purpose REG-1 */ | |
436 | JME_IEVE = JME_MISC| 0x20, /* Interrupt Event Status */ | |
437 | JME_IREQ = JME_MISC| 0x24, /* Interrupt Req Status(For Debug) */ | |
438 | JME_IENS = JME_MISC| 0x28, /* Interrupt Enable - Setting Port */ | |
439 | JME_IENC = JME_MISC| 0x2C, /* Interrupt Enable - Clear Port */ | |
440 | JME_PCCRX0 = JME_MISC| 0x30, /* PCC Control for RX Queue 0 */ | |
441 | JME_PCCTX = JME_MISC| 0x40, /* PCC Control for TX Queues */ | |
442 | JME_SHBA_HI = JME_MISC| 0x48, /* Shadow Register Base HI */ | |
443 | JME_SHBA_LO = JME_MISC| 0x4C, /* Shadow Register Base LO */ | |
444 | JME_PCCSRX0 = JME_MISC| 0x80, /* PCC Status of RX0 */ | |
445 | }; | |
446 | ||
447 | /* | |
448 | * TX Control/Status Bits | |
449 | */ | |
450 | enum jme_txcs_bits { | |
451 | TXCS_QUEUE7S = 0x00008000, | |
452 | TXCS_QUEUE6S = 0x00004000, | |
453 | TXCS_QUEUE5S = 0x00002000, | |
454 | TXCS_QUEUE4S = 0x00001000, | |
455 | TXCS_QUEUE3S = 0x00000800, | |
456 | TXCS_QUEUE2S = 0x00000400, | |
457 | TXCS_QUEUE1S = 0x00000200, | |
458 | TXCS_QUEUE0S = 0x00000100, | |
459 | TXCS_FIFOTH = 0x000000C0, | |
460 | TXCS_DMASIZE = 0x00000030, | |
461 | TXCS_BURST = 0x00000004, | |
462 | TXCS_ENABLE = 0x00000001, | |
463 | }; | |
464 | enum jme_txcs_value { | |
465 | TXCS_FIFOTH_16QW = 0x000000C0, | |
466 | TXCS_FIFOTH_12QW = 0x00000080, | |
467 | TXCS_FIFOTH_8QW = 0x00000040, | |
468 | TXCS_FIFOTH_4QW = 0x00000000, | |
469 | ||
470 | TXCS_DMASIZE_64B = 0x00000000, | |
471 | TXCS_DMASIZE_128B = 0x00000010, | |
472 | TXCS_DMASIZE_256B = 0x00000020, | |
473 | TXCS_DMASIZE_512B = 0x00000030, | |
474 | ||
475 | TXCS_SELECT_QUEUE0 = 0x00000000, | |
476 | TXCS_SELECT_QUEUE1 = 0x00010000, | |
477 | TXCS_SELECT_QUEUE2 = 0x00020000, | |
478 | TXCS_SELECT_QUEUE3 = 0x00030000, | |
479 | TXCS_SELECT_QUEUE4 = 0x00040000, | |
480 | TXCS_SELECT_QUEUE5 = 0x00050000, | |
481 | TXCS_SELECT_QUEUE6 = 0x00060000, | |
482 | TXCS_SELECT_QUEUE7 = 0x00070000, | |
483 | ||
484 | TXCS_DEFAULT = TXCS_FIFOTH_4QW | | |
485 | TXCS_BURST, | |
486 | }; | |
487 | #define JME_TX_DISABLE_TIMEOUT 5 /* 5 msec */ | |
488 | ||
489 | /* | |
490 | * TX MAC Control/Status Bits | |
491 | */ | |
492 | enum jme_txmcs_bit_masks { | |
493 | TXMCS_IFG2 = 0xC0000000, | |
494 | TXMCS_IFG1 = 0x30000000, | |
495 | TXMCS_TTHOLD = 0x00000300, | |
496 | TXMCS_FBURST = 0x00000080, | |
497 | TXMCS_CARRIEREXT = 0x00000040, | |
498 | TXMCS_DEFER = 0x00000020, | |
499 | TXMCS_BACKOFF = 0x00000010, | |
500 | TXMCS_CARRIERSENSE = 0x00000008, | |
501 | TXMCS_COLLISION = 0x00000004, | |
502 | TXMCS_CRC = 0x00000002, | |
503 | TXMCS_PADDING = 0x00000001, | |
504 | }; | |
505 | enum jme_txmcs_values { | |
506 | TXMCS_IFG2_6_4 = 0x00000000, | |
507 | TXMCS_IFG2_8_5 = 0x40000000, | |
508 | TXMCS_IFG2_10_6 = 0x80000000, | |
509 | TXMCS_IFG2_12_7 = 0xC0000000, | |
510 | ||
511 | TXMCS_IFG1_8_4 = 0x00000000, | |
512 | TXMCS_IFG1_12_6 = 0x10000000, | |
513 | TXMCS_IFG1_16_8 = 0x20000000, | |
514 | TXMCS_IFG1_20_10 = 0x30000000, | |
515 | ||
516 | TXMCS_TTHOLD_1_8 = 0x00000000, | |
517 | TXMCS_TTHOLD_1_4 = 0x00000100, | |
518 | TXMCS_TTHOLD_1_2 = 0x00000200, | |
519 | TXMCS_TTHOLD_FULL = 0x00000300, | |
520 | ||
521 | TXMCS_DEFAULT = TXMCS_IFG2_8_5 | | |
522 | TXMCS_IFG1_16_8 | | |
523 | TXMCS_TTHOLD_FULL | | |
524 | TXMCS_DEFER | | |
525 | TXMCS_CRC | | |
526 | TXMCS_PADDING, | |
527 | }; | |
528 | ||
529 | enum jme_txpfc_bits_masks { | |
530 | TXPFC_VLAN_TAG = 0xFFFF0000, | |
531 | TXPFC_VLAN_EN = 0x00008000, | |
532 | TXPFC_PF_EN = 0x00000001, | |
533 | }; | |
534 | ||
535 | enum jme_txtrhd_bits_masks { | |
536 | TXTRHD_TXPEN = 0x80000000, | |
537 | TXTRHD_TXP = 0x7FFFFF00, | |
538 | TXTRHD_TXREN = 0x00000080, | |
539 | TXTRHD_TXRL = 0x0000007F, | |
540 | }; | |
541 | enum jme_txtrhd_shifts { | |
542 | TXTRHD_TXP_SHIFT = 8, | |
543 | TXTRHD_TXRL_SHIFT = 0, | |
544 | }; | |
545 | ||
546 | ||
547 | /* | |
548 | * RX Control/Status Bits | |
549 | */ | |
550 | enum jme_rxcs_bit_masks { | |
551 | /* FIFO full threshold for transmitting Tx Pause Packet */ | |
552 | RXCS_FIFOTHTP = 0x30000000, | |
553 | /* FIFO threshold for processing next packet */ | |
554 | RXCS_FIFOTHNP = 0x0C000000, | |
555 | RXCS_DMAREQSZ = 0x03000000, /* DMA Request Size */ | |
556 | RXCS_QUEUESEL = 0x00030000, /* Queue selection */ | |
557 | RXCS_RETRYGAP = 0x0000F000, /* RX Desc full retry gap */ | |
558 | RXCS_RETRYCNT = 0x00000F00, /* RX Desc full retry counter */ | |
559 | RXCS_WAKEUP = 0x00000040, /* Enable receive wakeup packet */ | |
560 | RXCS_MAGIC = 0x00000020, /* Enable receive magic packet */ | |
561 | RXCS_SHORT = 0x00000010, /* Enable receive short packet */ | |
562 | RXCS_ABORT = 0x00000008, /* Enable receive errorr packet */ | |
563 | RXCS_QST = 0x00000004, /* Receive queue start */ | |
564 | RXCS_SUSPEND = 0x00000002, | |
565 | RXCS_ENABLE = 0x00000001, | |
566 | }; | |
567 | enum jme_rxcs_values { | |
568 | RXCS_FIFOTHTP_16T = 0x00000000, | |
569 | RXCS_FIFOTHTP_32T = 0x10000000, | |
570 | RXCS_FIFOTHTP_64T = 0x20000000, | |
571 | RXCS_FIFOTHTP_128T = 0x30000000, | |
572 | ||
573 | RXCS_FIFOTHNP_16QW = 0x00000000, | |
574 | RXCS_FIFOTHNP_32QW = 0x04000000, | |
575 | RXCS_FIFOTHNP_64QW = 0x08000000, | |
576 | RXCS_FIFOTHNP_128QW = 0x0C000000, | |
577 | ||
578 | RXCS_DMAREQSZ_16B = 0x00000000, | |
579 | RXCS_DMAREQSZ_32B = 0x01000000, | |
580 | RXCS_DMAREQSZ_64B = 0x02000000, | |
581 | RXCS_DMAREQSZ_128B = 0x03000000, | |
582 | ||
583 | RXCS_QUEUESEL_Q0 = 0x00000000, | |
584 | RXCS_QUEUESEL_Q1 = 0x00010000, | |
585 | RXCS_QUEUESEL_Q2 = 0x00020000, | |
586 | RXCS_QUEUESEL_Q3 = 0x00030000, | |
587 | ||
588 | RXCS_RETRYGAP_256ns = 0x00000000, | |
589 | RXCS_RETRYGAP_512ns = 0x00001000, | |
590 | RXCS_RETRYGAP_1024ns = 0x00002000, | |
591 | RXCS_RETRYGAP_2048ns = 0x00003000, | |
592 | RXCS_RETRYGAP_4096ns = 0x00004000, | |
593 | RXCS_RETRYGAP_8192ns = 0x00005000, | |
594 | RXCS_RETRYGAP_16384ns = 0x00006000, | |
595 | RXCS_RETRYGAP_32768ns = 0x00007000, | |
596 | ||
597 | RXCS_RETRYCNT_0 = 0x00000000, | |
598 | RXCS_RETRYCNT_4 = 0x00000100, | |
599 | RXCS_RETRYCNT_8 = 0x00000200, | |
600 | RXCS_RETRYCNT_12 = 0x00000300, | |
601 | RXCS_RETRYCNT_16 = 0x00000400, | |
602 | RXCS_RETRYCNT_20 = 0x00000500, | |
603 | RXCS_RETRYCNT_24 = 0x00000600, | |
604 | RXCS_RETRYCNT_28 = 0x00000700, | |
605 | RXCS_RETRYCNT_32 = 0x00000800, | |
606 | RXCS_RETRYCNT_36 = 0x00000900, | |
607 | RXCS_RETRYCNT_40 = 0x00000A00, | |
608 | RXCS_RETRYCNT_44 = 0x00000B00, | |
609 | RXCS_RETRYCNT_48 = 0x00000C00, | |
610 | RXCS_RETRYCNT_52 = 0x00000D00, | |
611 | RXCS_RETRYCNT_56 = 0x00000E00, | |
612 | RXCS_RETRYCNT_60 = 0x00000F00, | |
613 | ||
614 | RXCS_DEFAULT = RXCS_FIFOTHTP_128T | | |
615 | RXCS_FIFOTHNP_128QW | | |
616 | RXCS_DMAREQSZ_128B | | |
617 | RXCS_RETRYGAP_256ns | | |
618 | RXCS_RETRYCNT_32, | |
619 | }; | |
620 | #define JME_RX_DISABLE_TIMEOUT 5 /* 5 msec */ | |
621 | ||
622 | /* | |
623 | * RX MAC Control/Status Bits | |
624 | */ | |
625 | enum jme_rxmcs_bits { | |
626 | RXMCS_ALLFRAME = 0x00000800, | |
627 | RXMCS_BRDFRAME = 0x00000400, | |
628 | RXMCS_MULFRAME = 0x00000200, | |
629 | RXMCS_UNIFRAME = 0x00000100, | |
630 | RXMCS_ALLMULFRAME = 0x00000080, | |
631 | RXMCS_MULFILTERED = 0x00000040, | |
632 | RXMCS_RXCOLLDEC = 0x00000020, | |
633 | RXMCS_FLOWCTRL = 0x00000008, | |
634 | RXMCS_VTAGRM = 0x00000004, | |
635 | RXMCS_PREPAD = 0x00000002, | |
636 | RXMCS_CHECKSUM = 0x00000001, | |
637 | ||
638 | RXMCS_DEFAULT = RXMCS_VTAGRM | | |
639 | RXMCS_PREPAD | | |
640 | RXMCS_FLOWCTRL | | |
641 | RXMCS_CHECKSUM, | |
642 | }; | |
643 | ||
644 | /* | |
645 | * SMI Related definitions | |
646 | */ | |
647 | enum jme_smi_bit_mask | |
648 | { | |
649 | SMI_DATA_MASK = 0xFFFF0000, | |
650 | SMI_REG_ADDR_MASK = 0x0000F800, | |
651 | SMI_PHY_ADDR_MASK = 0x000007C0, | |
652 | SMI_OP_WRITE = 0x00000020, | |
653 | /* Set to 1, after req done it'll be cleared to 0 */ | |
654 | SMI_OP_REQ = 0x00000010, | |
655 | SMI_OP_MDIO = 0x00000008, /* Software assess In/Out */ | |
656 | SMI_OP_MDOE = 0x00000004, /* Software Output Enable */ | |
657 | SMI_OP_MDC = 0x00000002, /* Software CLK Control */ | |
658 | SMI_OP_MDEN = 0x00000001, /* Software access Enable */ | |
659 | }; | |
660 | enum jme_smi_bit_shift | |
661 | { | |
662 | SMI_DATA_SHIFT = 16, | |
663 | SMI_REG_ADDR_SHIFT = 11, | |
664 | SMI_PHY_ADDR_SHIFT = 6, | |
665 | }; | |
666 | __always_inline __u32 smi_reg_addr(int x) | |
667 | { | |
668 | return (((x) << SMI_REG_ADDR_SHIFT) & SMI_REG_ADDR_MASK); | |
669 | } | |
670 | __always_inline __u32 smi_phy_addr(int x) | |
671 | { | |
672 | return (((x) << SMI_PHY_ADDR_SHIFT) & SMI_PHY_ADDR_MASK); | |
673 | } | |
674 | #define JME_PHY_TIMEOUT 1000 /* 1000 usec */ | |
675 | ||
676 | /* | |
677 | * Global Host Control | |
678 | */ | |
679 | enum jme_ghc_bit_mask { | |
680 | GHC_SWRST = 0x40000000, | |
681 | GHC_DPX = 0x00000040, | |
682 | GHC_SPEED = 0x00000030, | |
683 | GHC_LINK_POLL = 0x00000001, | |
684 | }; | |
685 | enum jme_ghc_speed_val { | |
686 | GHC_SPEED_10M = 0x00000010, | |
687 | GHC_SPEED_100M = 0x00000020, | |
688 | GHC_SPEED_1000M = 0x00000030, | |
689 | }; | |
690 | ||
691 | /* | |
692 | * Giga PHY Status Registers | |
693 | */ | |
694 | enum jme_phy_link_bit_mask { | |
695 | PHY_LINK_SPEED_MASK = 0x0000C000, | |
696 | PHY_LINK_DUPLEX = 0x00002000, | |
697 | PHY_LINK_SPEEDDPU_RESOLVED = 0x00000800, | |
698 | PHY_LINK_UP = 0x00000400, | |
699 | PHY_LINK_AUTONEG_COMPLETE = 0x00000200, | |
700 | PHY_LINK_MDI_STAT = 0x00000040, | |
701 | }; | |
702 | enum jme_phy_link_speed_val { | |
703 | PHY_LINK_SPEED_10M = 0x00000000, | |
704 | PHY_LINK_SPEED_100M = 0x00004000, | |
705 | PHY_LINK_SPEED_1000M = 0x00008000, | |
706 | }; | |
707 | #define JME_SPDRSV_TIMEOUT 500 /* 500 us */ | |
708 | ||
709 | /* | |
710 | * SMB Control and Status | |
711 | */ | |
712 | enum jme_smbcsr_bit_mask { | |
713 | SMBCSR_CNACK = 0x00020000, | |
714 | SMBCSR_RELOAD = 0x00010000, | |
715 | SMBCSR_EEPROMD = 0x00000020, | |
716 | }; | |
717 | #define JME_SMB_TIMEOUT 10 /* 10 msec */ | |
718 | ||
719 | /* | |
720 | * Timer Control/Status Register | |
721 | */ | |
722 | enum jme_tmcsr_bit_masks { | |
723 | TMCSR_SWIT = 0x80000000, | |
724 | TMCSR_EN = 0x01000000, | |
725 | TMCSR_CNT = 0x00FFFFFF, | |
726 | }; | |
727 | ||
728 | ||
729 | /* | |
730 | * General Purpost REG-0 | |
731 | */ | |
732 | enum jme_gpreg0_masks { | |
733 | GPREG0_DISSH = 0xFF000000, | |
734 | GPREG0_PCIRLMT = 0x00300000, | |
735 | GPREG0_PCCNOMUTCLR = 0x00040000, | |
736 | GPREG0_PCCTMR = 0x00000300, | |
737 | GPREG0_PHYADDR = 0x0000001F, | |
738 | }; | |
739 | enum jme_gpreg0_vals { | |
740 | GPREG0_DISSH_DW7 = 0x80000000, | |
741 | GPREG0_DISSH_DW6 = 0x40000000, | |
742 | GPREG0_DISSH_DW5 = 0x20000000, | |
743 | GPREG0_DISSH_DW4 = 0x10000000, | |
744 | GPREG0_DISSH_DW3 = 0x08000000, | |
745 | GPREG0_DISSH_DW2 = 0x04000000, | |
746 | GPREG0_DISSH_DW1 = 0x02000000, | |
747 | GPREG0_DISSH_DW0 = 0x01000000, | |
748 | GPREG0_DISSH_ALL = 0xFF000000, | |
749 | ||
750 | GPREG0_PCIRLMT_8 = 0x00000000, | |
751 | GPREG0_PCIRLMT_6 = 0x00100000, | |
752 | GPREG0_PCIRLMT_5 = 0x00200000, | |
753 | GPREG0_PCIRLMT_4 = 0x00300000, | |
754 | ||
755 | GPREG0_PCCTMR_16ns = 0x00000000, | |
756 | GPREG0_PCCTMR_256ns = 0x00000100, | |
757 | GPREG0_PCCTMR_1us = 0x00000200, | |
758 | GPREG0_PCCTMR_1ms = 0x00000300, | |
759 | ||
760 | GPREG0_PHYADDR_1 = 0x00000001, | |
761 | ||
762 | GPREG0_DEFAULT = GPREG0_PCIRLMT_4 | | |
763 | GPREG0_PCCNOMUTCLR | | |
764 | GPREG0_PCCTMR_1us | | |
765 | GPREG0_PHYADDR_1, | |
766 | }; | |
767 | ||
768 | /* | |
769 | * Interrupt Status Bits | |
770 | */ | |
771 | enum jme_interrupt_bits | |
772 | { | |
773 | INTR_SWINTR = 0x80000000, | |
774 | INTR_TMINTR = 0x40000000, | |
775 | INTR_LINKCH = 0x20000000, | |
776 | INTR_PAUSERCV = 0x10000000, | |
777 | INTR_MAGICRCV = 0x08000000, | |
778 | INTR_WAKERCV = 0x04000000, | |
779 | INTR_PCCRX0TO = 0x02000000, | |
780 | INTR_PCCRX1TO = 0x01000000, | |
781 | INTR_PCCRX2TO = 0x00800000, | |
782 | INTR_PCCRX3TO = 0x00400000, | |
783 | INTR_PCCTXTO = 0x00200000, | |
784 | INTR_PCCRX0 = 0x00100000, | |
785 | INTR_PCCRX1 = 0x00080000, | |
786 | INTR_PCCRX2 = 0x00040000, | |
787 | INTR_PCCRX3 = 0x00020000, | |
788 | INTR_PCCTX = 0x00010000, | |
789 | INTR_RX3EMP = 0x00008000, | |
790 | INTR_RX2EMP = 0x00004000, | |
791 | INTR_RX1EMP = 0x00002000, | |
792 | INTR_RX0EMP = 0x00001000, | |
793 | INTR_RX3 = 0x00000800, | |
794 | INTR_RX2 = 0x00000400, | |
795 | INTR_RX1 = 0x00000200, | |
796 | INTR_RX0 = 0x00000100, | |
797 | INTR_TX7 = 0x00000080, | |
798 | INTR_TX6 = 0x00000040, | |
799 | INTR_TX5 = 0x00000020, | |
800 | INTR_TX4 = 0x00000010, | |
801 | INTR_TX3 = 0x00000008, | |
802 | INTR_TX2 = 0x00000004, | |
803 | INTR_TX1 = 0x00000002, | |
804 | INTR_TX0 = 0x00000001, | |
805 | }; | |
806 | static const __u32 INTR_ENABLE = INTR_SWINTR | | |
807 | INTR_TMINTR | | |
808 | INTR_LINKCH | | |
809 | INTR_RX0EMP | | |
810 | INTR_PCCRX0TO | | |
811 | INTR_PCCRX0 | | |
812 | INTR_PCCTXTO | | |
813 | INTR_PCCTX; | |
814 | ||
815 | /* | |
816 | * PCC Control Registers | |
817 | */ | |
818 | enum jme_pccrx_masks { | |
819 | PCCRXTO_MASK = 0xFFFF0000, | |
820 | PCCRX_MASK = 0x0000FF00, | |
821 | }; | |
822 | enum jme_pcctx_masks { | |
823 | PCCTXTO_MASK = 0xFFFF0000, | |
824 | PCCTX_MASK = 0x0000FF00, | |
825 | PCCTX_QS_MASK = 0x000000FF, | |
826 | }; | |
827 | enum jme_pccrx_shifts { | |
828 | PCCRXTO_SHIFT = 16, | |
829 | PCCRX_SHIFT = 8, | |
830 | }; | |
831 | enum jme_pcctx_shifts { | |
832 | PCCTXTO_SHIFT = 16, | |
833 | PCCTX_SHIFT = 8, | |
834 | }; | |
835 | enum jme_pcctx_bits { | |
836 | PCCTXQ0_EN = 0x00000001, | |
837 | PCCTXQ1_EN = 0x00000002, | |
838 | PCCTXQ2_EN = 0x00000004, | |
839 | PCCTXQ3_EN = 0x00000008, | |
840 | PCCTXQ4_EN = 0x00000010, | |
841 | PCCTXQ5_EN = 0x00000020, | |
842 | PCCTXQ6_EN = 0x00000040, | |
843 | PCCTXQ7_EN = 0x00000080, | |
844 | }; | |
845 | ||
846 | ||
847 | /* | |
848 | * Shadow base address register bits | |
849 | */ | |
850 | enum jme_shadow_base_address_bits { | |
851 | SHBA_POSTEN = 0x1, | |
852 | }; | |
853 | ||
854 | /* | |
855 | * Read/Write MMaped I/O Registers | |
856 | */ | |
857 | __always_inline __u32 jread32(struct jme_adapter *jme, __u32 reg) | |
858 | { | |
859 | return le32_to_cpu(readl((__u8*)jme->regs + reg)); | |
860 | } | |
861 | __always_inline void jwrite32(struct jme_adapter *jme, __u32 reg, __u32 val) | |
862 | { | |
863 | writel(cpu_to_le32(val), (__u8*)jme->regs + reg); | |
864 | } | |
865 | __always_inline void jwrite32f(struct jme_adapter *jme, __u32 reg, __u32 val) | |
866 | { | |
867 | /* | |
868 | * Read after write should cause flush | |
869 | */ | |
870 | writel(cpu_to_le32(val), (__u8*)jme->regs + reg); | |
871 | readl((__u8*)jme->regs + reg); | |
872 | } | |
873 | ||
874 | /* | |
875 | * Function prototypes for ethtool | |
876 | */ | |
877 | static void jme_get_drvinfo(struct net_device *netdev, | |
878 | struct ethtool_drvinfo *info); | |
879 | static int jme_get_settings(struct net_device *netdev, | |
880 | struct ethtool_cmd *ecmd); | |
881 | static int jme_set_settings(struct net_device *netdev, | |
882 | struct ethtool_cmd *ecmd); | |
883 | static u32 jme_get_link(struct net_device *netdev); | |
884 | ||
885 | ||
886 | /* | |
887 | * Function prototypes for netdev | |
888 | */ | |
889 | static int jme_open(struct net_device *netdev); | |
890 | static int jme_close(struct net_device *netdev); | |
891 | static int jme_start_xmit(struct sk_buff *skb, struct net_device *netdev); | |
892 | static int jme_set_macaddr(struct net_device *netdev, void *p); | |
893 | static void jme_set_multi(struct net_device *netdev); | |
894 | ||
895 |