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4330c2f2
GFT		 1/*
2 * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
3 *
4 * Copyright 2008 JMicron Technology Corporation
5 * http://www.jmicron.com/
6 *
3bf61c55
GFT		 7 * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
8 *
4330c2f2
GFT		 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>
d7699f87
GFT		 25
26#define DRV_NAME "jme"
3bf61c55 27#define DRV_VERSION "0.3"
d7699f87
GFT		 28#define PFX DRV_NAME ": "
29
30#ifdef DEBUG
4330c2f2 31#define dprintk(devname, fmt, args...) \
3bf61c55 32 printk(KERN_DEBUG PFX "%s: " fmt, devname, ## args)
d7699f87 33#else
4330c2f2 34#define dprintk(devname, fmt, args...)
d7699f87
GFT		 35#endif
36
3bf61c55
GFT		 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
4330c2f2 49#define jprintk(devname, fmt, args...) \
3bf61c55 50 printk(KERN_INFO PFX "%s: " fmt, devname, ## args)
4330c2f2
GFT		 51
52#define jeprintk(devname, fmt, args...) \
3bf61c55 53 printk(KERN_ERR PFX "%s: " fmt, devname, ## args)
4330c2f2
GFT		 54
55#define USE_IEVE_SHADOW 0
d7699f87
GFT		 56
57#define DEFAULT_MSG_ENABLE \
58 (NETIF_MSG_DRV | \
59 NETIF_MSG_PROBE | \
60 NETIF_MSG_LINK | \
61 NETIF_MSG_TIMER | \
62 NETIF_MSG_RX_ERR | \
63 NETIF_MSG_TX_ERR)
64
4330c2f2
GFT		 65#define PCI_CONF_DCSR_MRRS 0x59
66#define PCI_CONF_DCSR_MRRS_MASK 0x70
67enum pci_conf_dcsr_mrrs_vals {
68 MRRS_128B = 0x00,
69 MRRS_256B = 0x10,
70 MRRS_512B = 0x20,
71 MRRS_1024B = 0x30,
72 MRRS_2048B = 0x40,
73 MRRS_4096B = 0x50,
74};
d7699f87 75
3bf61c55
GFT		 76enum dynamic_pcc_values {
77 PCC_P1 = 1,
78 PCC_P2 = 2,
79 PCC_P3 = 3,
80
81 PCC_P1_TO = 1,
82 PCC_P2_TO = 250,
83 PCC_P3_TO = 1000,
84
85 PCC_P1_CNT = 1,
86 PCC_P2_CNT = 64,
87 PCC_P3_CNT = 255,
88};
89struct dynpcc_info {
90 unsigned long check_point;
91 unsigned long last_bytes;
92 unsigned long last_pkts;
93 unsigned char cur;
94 unsigned char attempt;
95 unsigned char cnt;
96};
97#define PCC_INTERVAL (HZ / 10)
98#define PCC_P3_THRESHOLD 3*1024*1024
99#define PCC_P2_THRESHOLD 1000
100
d7699f87
GFT		 101/*
102 * TX/RX Descriptors
4330c2f2
GFT		 103 *
104 * TX/RX Ring DESC Count Must be multiple of 16
105 * RX Ring DESC Count Must be <= 1024
d7699f87 106 */
4330c2f2
GFT		 107#define RING_DESC_NR 512 /* Must be power of 2 */
108#define RING_DESC_ALIGN 16 /* Descriptor alignment */
109
d7699f87
GFT		 110#define TX_DESC_SIZE 16
111#define TX_RING_NR 8
112#define TX_RING_ALLOC_SIZE (RING_DESC_NR * TX_DESC_SIZE) + TX_DESC_SIZE
113#define TX_RING_SIZE (RING_DESC_NR * TX_DESC_SIZE)
114
3bf61c55 115struct txdesc {
d7699f87
GFT		 116 union {
117 __u8 all[16];
118 __u32 dw[4];
119 struct {
120 /* DW0 */
121 __u16 vlan;
122 __u8 rsv1;
123 __u8 flags;
124
125 /* DW1 */
126 __u16 datalen;
127 __u16 mss;
128
129 /* DW2 */
130 __u16 pktsize;
131 __u16 rsv2;
132
133 /* DW3 */
134 __u32 bufaddr;
135 } desc1;
3bf61c55
GFT		 136 struct {
137 /* DW0 */
138 __u16 rsv1;
139 __u8 rsv2;
140 __u8 flags;
141
142 /* DW1 */
143 __u16 datalen;
144 __u16 rsv3;
145
146 /* DW2 */
147 __u32 bufaddrh;
148
149 /* DW3 */
150 __u32 bufaddrl;
151 } desc2;
d7699f87
GFT		 152 };
153};
154enum jme_txdesc_flag_bits {
155 TXFLAG_OWN = 0x80,
156 TXFLAG_INT = 0x40,
3bf61c55 157 TXFLAG_64BIT = 0x20,
d7699f87
GFT		 158 TXFLAG_TCPCS = 0x10,
159 TXFLAG_UDPCS = 0x08,
160 TXFLAG_IPCS = 0x04,
161 TXFLAG_LSEN = 0x02,
162 TXFLAG_TAGON = 0x01,
163};
164
165
166#define RX_DESC_SIZE 16
167#define RX_RING_NR 4
168#define RX_RING_ALLOC_SIZE (RING_DESC_NR * RX_DESC_SIZE) + RX_DESC_SIZE
169#define RX_RING_SIZE (RING_DESC_NR * RX_DESC_SIZE)
170
171#define RX_BUF_DMA_ALIGN 8
4330c2f2 172//#define RX_BUF_SIZE 1600
3bf61c55
GFT		 173#define RX_BUF_SIZE 9200
174//#define RX_BUF_SIZE 4000
175#define RX_PREPAD_SIZE 10
176
4330c2f2
GFT		 177/*
178 * Will use mtu in the future
179 */
d7699f87
GFT		 180#define RX_BUF_ALLOC_SIZE RX_BUF_SIZE + RX_BUF_DMA_ALIGN
181
3bf61c55 182struct rxdesc {
d7699f87
GFT		 183 union {
184 __u8 all[16];
185 __le32 dw[4];
186 struct {
187 /* DW0 */
188 __le16 rsv2;
189 __u8 rsv1;
190 __u8 flags;
191
192 /* DW1 */
193 __le16 datalen;
194 __le16 wbcpl;
195
196 /* DW2 */
197 __le32 bufaddrh;
198
199 /* DW3 */
200 __le32 bufaddrl;
201 } desc1;
202 struct {
203 /* DW0 */
204 __le16 vlan;
205 __le16 flags;
206
207 /* DW1 */
208 __le16 framesize;
4330c2f2 209 __u8 errstat;
d7699f87
GFT		 210 __u8 desccnt;
211
212 /* DW2 */
213 __le32 rsshash;
214
215 /* DW3 */
3bf61c55
GFT		 216 __u8 hashfun;
217 __u8 hashtype;
d7699f87
GFT		 218 __le16 resrv;
219 } descwb;
220 };
221};
222enum jme_rxdesc_flags_bits {
223 RXFLAG_OWN = 0x80,
224 RXFLAG_INT = 0x40,
225 RXFLAG_64BIT = 0x20,
226};
227enum jme_rxwbdesc_flags_bits {
4330c2f2
GFT		 228 RXWBFLAG_OWN = 0x8000,
229 RXWBFLAG_INT = 0x4000,
230 RXWBFLAG_MF = 0x2000,
231 RXWBFLAG_64BIT = 0x2000,
232 RXWBFLAG_TCPON = 0x1000,
233 RXWBFLAG_UDPON = 0x0800,
234 RXWBFLAG_IPCS = 0x0400,
235 RXWBFLAG_TCPCS = 0x0200,
236 RXWBFLAG_UDPCS = 0x0100,
237 RXWBFLAG_TAGON = 0x0080,
238 RXWBFLAG_IPV4 = 0x0040,
239 RXWBFLAG_IPV6 = 0x0020,
240 RXWBFLAG_PAUSE = 0x0010,
241 RXWBFLAG_MAGIC = 0x0008,
242 RXWBFLAG_WAKEUP = 0x0004,
243 RXWBFLAG_DEST = 0x0003,
244 RXWBFLAG_DEST_UNI = 0x0001,
245 RXWBFLAG_DEST_MUL = 0x0002,
246 RXWBFLAG_DEST_BRO = 0x0003,
d7699f87
GFT		 247};
248enum jme_rxwbdesc_desccnt_mask {
249 RXWBDCNT_WBCPL = 0x80,
250 RXWBDCNT_DCNT = 0x7F,
251};
4330c2f2
GFT		 252enum jme_rxwbdesc_errstat_bits {
253 RXWBERR_LIMIT = 0x80,
254 RXWBERR_MIIER = 0x40,
255 RXWBERR_NIBON = 0x20,
256 RXWBERR_COLON = 0x10,
257 RXWBERR_ABORT = 0x08,
258 RXWBERR_SHORT = 0x04,
259 RXWBERR_OVERUN = 0x02,
260 RXWBERR_CRCERR = 0x01,
261 RXWBERR_ALLERR = 0xFF,
262};
263
264struct jme_buffer_info {
265 struct sk_buff *skb;
266 dma_addr_t mapping;
267 int len;
3bf61c55 268 int nr_desc;
4330c2f2 269};
d7699f87
GFT		 270
271struct jme_ring {
4330c2f2 272 void* alloc; /* pointer to allocated memory */
3bf61c55 273 volatile void* desc; /* pointer to ring memory */
d7699f87
GFT		 274 dma_addr_t dmaalloc; /* phys address of ring alloc */
275 dma_addr_t dma; /* phys address for ring dma */
276
4330c2f2
GFT		 277 /* Buffer information corresponding to each descriptor */
278 struct jme_buffer_info bufinf[RING_DESC_NR];
d7699f87
GFT		 279
280 u16 next_to_use;
281 u16 next_to_clean;
3bf61c55
GFT		 282
283 u16 nr_free;
d7699f87
GFT		 284};
285
3bf61c55
GFT		 286#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
287#define NET_STAT(priv) priv->stats
288#define NETDEV_GET_STATS(netdev, fun_ptr) \
289 netdev->get_stats = fun_ptr
290#define DECLARE_NET_DEVICE_STATS struct net_device_stats stats;
291#else
292#define NET_STAT(priv) priv->dev->stats
293#define NETDEV_GET_STATS(netdev, fun_ptr)
294#define DECLARE_NET_DEVICE_STATS
295#endif
296
d7699f87
GFT		 297/*
298 * Jmac Adapter Private data
299 */
4330c2f2 300#define SHADOW_REG_NR 8
d7699f87
GFT		 301struct jme_adapter {
302 struct pci_dev *pdev;
303 struct net_device *dev;
304 void __iomem *regs;
4330c2f2
GFT		 305 dma_addr_t shadow_dma;
306 __u32 *shadow_regs;
d7699f87
GFT		 307 struct mii_if_info mii_if;
308 struct jme_ring rxring[RX_RING_NR];
309 struct jme_ring txring[TX_RING_NR];
3bf61c55
GFT		 310 spinlock_t rx_lock;
311 spinlock_t tx_lock;
d7699f87 312 spinlock_t phy_lock;
4330c2f2
GFT		 313 struct tasklet_struct rxclean_task;
314 struct tasklet_struct txclean_task;
315 struct tasklet_struct linkch_task;
316 __u32 flags;
317 __u32 reg_txcs;
3bf61c55
GFT		 318 __u32 reg_rxmcs;
319 __u32 reg_ghc;
320 struct dynpcc_info dpi;
321 atomic_t intr_sem;
322 DECLARE_NET_DEVICE_STATS
d7699f87 323};
4330c2f2
GFT		 324enum shadow_reg_val {
325 SHADOW_IEVE = 0,
326};
327
3bf61c55
GFT		 328#define JME_FLAG_RXQ0_EMPTY 0x00000001
329#define JME_FLAG_RXQ1_EMPTY 0x00000002
330#define JME_FLAG_RXQ2_EMPTY 0x00000004
331#define JME_FLAG_RXQ3_EMPTY 0x00000008
d7699f87
GFT		 332
333/*
334 * MMaped I/O Resters
335 */
336enum jme_iomap_offsets {
4330c2f2
GFT		 337 JME_MAC = 0x0000,
338 JME_PHY = 0x0400,
d7699f87 339 JME_MISC = 0x0800,
4330c2f2 340 JME_RSS = 0x0C00,
d7699f87
GFT		 341};
342
343enum jme_iomap_regs {
344 JME_TXCS = JME_MAC | 0x00, /* Transmit Control and Status */
3bf61c55
GFT		 345 JME_TXDBA_LO = JME_MAC | 0x04, /* Transmit Queue Desc Base Addr */
346 JME_TXDBA_HI = JME_MAC | 0x08, /* Transmit Queue Desc Base Addr */
d7699f87
GFT		 347 JME_TXQDC = JME_MAC | 0x0C, /* Transmit Queue Desc Count */
348 JME_TXNDA = JME_MAC | 0x10, /* Transmit Queue Next Desc Addr */
349 JME_TXMCS = JME_MAC | 0x14, /* Transmit MAC Control Status */
350 JME_TXPFC = JME_MAC | 0x18, /* Transmit Pause Frame Control */
351 JME_TXTRHD = JME_MAC | 0x1C, /* Transmit Timer/Retry@Half-Dup */
352
353 JME_RXCS = JME_MAC | 0x20, /* Receive Control and Status */
3bf61c55
GFT		 354 JME_RXDBA_LO = JME_MAC | 0x24, /* Receive Queue Desc Base Addr */
355 JME_RXDBA_HI = JME_MAC | 0x28, /* Receive Queue Desc Base Addr */
d7699f87
GFT		 356 JME_RXQDC = JME_MAC | 0x2C, /* Receive Queue Desc Count */
357 JME_RXNDA = JME_MAC | 0x30, /* Receive Queue Next Desc Addr */
358 JME_RXMCS = JME_MAC | 0x34, /* Receive MAC Control Status */
4330c2f2
GFT		 359 JME_RXUMA_LO = JME_MAC | 0x38, /* Receive Unicast MAC Address */
360 JME_RXUMA_HI = JME_MAC | 0x3C, /* Receive Unicast MAC Address */
3bf61c55
GFT		 361 JME_RXMCHT_LO = JME_MAC | 0x40, /* Recv Multicast Addr HashTable */
362 JME_RXMCHT_HI = JME_MAC | 0x44, /* Recv Multicast Addr HashTable */
d7699f87
GFT		 363 JME_WFODP = JME_MAC | 0x48, /* Wakeup Frame Output Data Port */
364 JME_WFOI = JME_MAC | 0x4C, /* Wakeup Frame Output Interface */
365
366 JME_SMI = JME_MAC | 0x50, /* Station Management Interface */
367 JME_GHC = JME_MAC | 0x54, /* Global Host Control */
368 JME_PMCS = JME_MAC | 0x60, /* Power Management Control/Stat */
369
370
3bf61c55 371 JME_PHY_CS = JME_PHY | 0x28, /* PHY Ctrl and Status Register */
d7699f87
GFT		 372 JME_PHY_LINK = JME_PHY | 0x30, /* PHY Link Status Register */
373 JME_SMBCSR = JME_PHY | 0x40, /* SMB Control and Status */
374
375
4330c2f2
GFT		 376 JME_GPREG0 = JME_MISC| 0x08, /* General purpose REG-0 */
377 JME_GPREG1 = JME_MISC| 0x0C, /* General purpose REG-1 */
d7699f87 378 JME_IEVE = JME_MISC| 0x20, /* Interrupt Event Status */
3bf61c55 379 JME_IREQ = JME_MISC| 0x24, /* Interrupt Req Status(For Debug) */
d7699f87 380 JME_IENS = JME_MISC| 0x28, /* Interrupt Enable - Setting Port */
3bf61c55
GFT		 381 JME_IENC = JME_MISC| 0x2C, /* Interrupt Enable - Clear Port */
382 JME_PCCRX0 = JME_MISC| 0x30, /* PCC Control for RX Queue 0 */
383 JME_PCCTX = JME_MISC| 0x40, /* PCC Control for TX Queues */
4330c2f2
GFT		 384 JME_SHBA_HI = JME_MISC| 0x48, /* Shadow Register Base HI */
385 JME_SHBA_LO = JME_MISC| 0x4C, /* Shadow Register Base LO */
3bf61c55 386 JME_PCCSRX0 = JME_MISC| 0x80, /* PCC Status of RX0 */
d7699f87
GFT		 387};
388
389/*
390 * TX Control/Status Bits
391 */
392enum jme_txcs_bits {
393 TXCS_QUEUE7S = 0x00008000,
394 TXCS_QUEUE6S = 0x00004000,
395 TXCS_QUEUE5S = 0x00002000,
396 TXCS_QUEUE4S = 0x00001000,
397 TXCS_QUEUE3S = 0x00000800,
398 TXCS_QUEUE2S = 0x00000400,
399 TXCS_QUEUE1S = 0x00000200,
400 TXCS_QUEUE0S = 0x00000100,
401 TXCS_FIFOTH = 0x000000C0,
402 TXCS_DMASIZE = 0x00000030,
403 TXCS_BURST = 0x00000004,
404 TXCS_ENABLE = 0x00000001,
405};
406enum jme_txcs_value {
407 TXCS_FIFOTH_16QW = 0x000000C0,
408 TXCS_FIFOTH_12QW = 0x00000080,
409 TXCS_FIFOTH_8QW = 0x00000040,
410 TXCS_FIFOTH_4QW = 0x00000000,
411
412 TXCS_DMASIZE_64B = 0x00000000,
413 TXCS_DMASIZE_128B = 0x00000010,
414 TXCS_DMASIZE_256B = 0x00000020,
415 TXCS_DMASIZE_512B = 0x00000030,
416
417 TXCS_SELECT_QUEUE0 = 0x00000000,
418 TXCS_SELECT_QUEUE1 = 0x00010000,
419 TXCS_SELECT_QUEUE2 = 0x00020000,
420 TXCS_SELECT_QUEUE3 = 0x00030000,
421 TXCS_SELECT_QUEUE4 = 0x00040000,
422 TXCS_SELECT_QUEUE5 = 0x00050000,
423 TXCS_SELECT_QUEUE6 = 0x00060000,
424 TXCS_SELECT_QUEUE7 = 0x00070000,
425
426 TXCS_DEFAULT = TXCS_FIFOTH_4QW |
d7699f87
GFT		 427 TXCS_BURST,
428};
429#define JME_TX_DISABLE_TIMEOUT 200 /* 200 usec */
430
431/*
432 * TX MAC Control/Status Bits
433 */
434enum jme_txmcs_bit_masks {
435 TXMCS_IFG2 = 0xC0000000,
436 TXMCS_IFG1 = 0x30000000,
437 TXMCS_TTHOLD = 0x00000300,
438 TXMCS_FBURST = 0x00000080,
439 TXMCS_CARRIEREXT = 0x00000040,
440 TXMCS_DEFER = 0x00000020,
441 TXMCS_BACKOFF = 0x00000010,
442 TXMCS_CARRIERSENSE = 0x00000008,
443 TXMCS_COLLISION = 0x00000004,
444 TXMCS_CRC = 0x00000002,
445 TXMCS_PADDING = 0x00000001,
446};
447enum jme_txmcs_values {
448 TXMCS_IFG2_6_4 = 0x00000000,
449 TXMCS_IFG2_8_5 = 0x40000000,
450 TXMCS_IFG2_10_6 = 0x80000000,
451 TXMCS_IFG2_12_7 = 0xC0000000,
452
453 TXMCS_IFG1_8_4 = 0x00000000,
454 TXMCS_IFG1_12_6 = 0x10000000,
455 TXMCS_IFG1_16_8 = 0x20000000,
456 TXMCS_IFG1_20_10 = 0x30000000,
457
458 TXMCS_TTHOLD_1_8 = 0x00000000,
459 TXMCS_TTHOLD_1_4 = 0x00000100,
460 TXMCS_TTHOLD_1_2 = 0x00000200,
461 TXMCS_TTHOLD_FULL = 0x00000300,
462
463 TXMCS_DEFAULT = TXMCS_IFG2_8_5 |
464 TXMCS_IFG1_16_8 |
465 TXMCS_TTHOLD_FULL |
466 TXMCS_DEFER |
467 TXMCS_CRC |
468 TXMCS_PADDING,
469};
470
471
472/*
473 * RX Control/Status Bits
474 */
4330c2f2 475enum jme_rxcs_bit_masks {
3bf61c55
GFT		 476 /* FIFO full threshold for transmitting Tx Pause Packet */
477 RXCS_FIFOTHTP = 0x30000000,
478 /* FIFO threshold for processing next packet */
479 RXCS_FIFOTHNP = 0x0C000000,
4330c2f2
GFT		 480 RXCS_DMAREQSZ = 0x03000000, /* DMA Request Size */
481 RXCS_QUEUESEL = 0x00030000, /* Queue selection */
482 RXCS_RETRYGAP = 0x0000F000, /* RX Desc full retry gap */
483 RXCS_RETRYCNT = 0x00000F00, /* RX Desc full retry counter */
484 RXCS_WAKEUP = 0x00000040, /* Enable receive wakeup packet */
485 RXCS_MAGIC = 0x00000020, /* Enable receive magic packet */
486 RXCS_SHORT = 0x00000010, /* Enable receive short packet */
487 RXCS_ABORT = 0x00000008, /* Enable receive errorr packet */
488 RXCS_QST = 0x00000004, /* Receive queue start */
489 RXCS_SUSPEND = 0x00000002,
d7699f87
GFT		 490 RXCS_ENABLE = 0x00000001,
491};
4330c2f2
GFT		 492enum jme_rxcs_values {
493 RXCS_FIFOTHTP_16T = 0x00000000,
494 RXCS_FIFOTHTP_32T = 0x10000000,
495 RXCS_FIFOTHTP_64T = 0x20000000,
496 RXCS_FIFOTHTP_128T = 0x30000000,
497
498 RXCS_FIFOTHNP_16QW = 0x00000000,
499 RXCS_FIFOTHNP_32QW = 0x04000000,
500 RXCS_FIFOTHNP_64QW = 0x08000000,
501 RXCS_FIFOTHNP_128QW = 0x0C000000,
502
503 RXCS_DMAREQSZ_16B = 0x00000000,
504 RXCS_DMAREQSZ_32B = 0x01000000,
505 RXCS_DMAREQSZ_64B = 0x02000000,
506 RXCS_DMAREQSZ_128B = 0x03000000,
507
508 RXCS_QUEUESEL_Q0 = 0x00000000,
509 RXCS_QUEUESEL_Q1 = 0x00010000,
510 RXCS_QUEUESEL_Q2 = 0x00020000,
511 RXCS_QUEUESEL_Q3 = 0x00030000,
512
513 RXCS_RETRYGAP_256ns = 0x00000000,
514 RXCS_RETRYGAP_512ns = 0x00001000,
515 RXCS_RETRYGAP_1024ns = 0x00002000,
516 RXCS_RETRYGAP_2048ns = 0x00003000,
517 RXCS_RETRYGAP_4096ns = 0x00004000,
518 RXCS_RETRYGAP_8192ns = 0x00005000,
519 RXCS_RETRYGAP_16384ns = 0x00006000,
520 RXCS_RETRYGAP_32768ns = 0x00007000,
521
522 RXCS_RETRYCNT_0 = 0x00000000,
523 RXCS_RETRYCNT_4 = 0x00000100,
524 RXCS_RETRYCNT_8 = 0x00000200,
525 RXCS_RETRYCNT_12 = 0x00000300,
526 RXCS_RETRYCNT_16 = 0x00000400,
527 RXCS_RETRYCNT_20 = 0x00000500,
528 RXCS_RETRYCNT_24 = 0x00000600,
529 RXCS_RETRYCNT_28 = 0x00000700,
530 RXCS_RETRYCNT_32 = 0x00000800,
531 RXCS_RETRYCNT_36 = 0x00000900,
532 RXCS_RETRYCNT_40 = 0x00000A00,
533 RXCS_RETRYCNT_44 = 0x00000B00,
534 RXCS_RETRYCNT_48 = 0x00000C00,
535 RXCS_RETRYCNT_52 = 0x00000D00,
536 RXCS_RETRYCNT_56 = 0x00000E00,
537 RXCS_RETRYCNT_60 = 0x00000F00,
538
539 RXCS_DEFAULT = RXCS_FIFOTHTP_128T |
540 RXCS_FIFOTHNP_128QW |
541 RXCS_DMAREQSZ_128B |
542 RXCS_RETRYGAP_256ns |
543 RXCS_RETRYCNT_32,
544};
d7699f87
GFT		 545#define JME_RX_DISABLE_TIMEOUT 200 /* 200 usec */
546
547/*
548 * RX MAC Control/Status Bits
549 */
550enum jme_rxmcs_bits {
551 RXMCS_ALLFRAME = 0x00000800,
552 RXMCS_BRDFRAME = 0x00000400,
553 RXMCS_MULFRAME = 0x00000200,
554 RXMCS_UNIFRAME = 0x00000100,
555 RXMCS_ALLMULFRAME = 0x00000080,
556 RXMCS_MULFILTERED = 0x00000040,
3bf61c55
GFT		 557 RXMCS_RXCOLLDEC = 0x00000020,
558 RXMCS_FLOWCTRL = 0x00000008,
559 RXMCS_VTAGRM = 0x00000004,
560 RXMCS_PREPAD = 0x00000002,
561 RXMCS_CHECKSUM = 0x00000001,
d7699f87
GFT		 562};
563
564/*
565 * SMI Related definitions
566 */
567enum jme_smi_bit_mask
568{
569 SMI_DATA_MASK = 0xFFFF0000,
570 SMI_REG_ADDR_MASK = 0x0000F800,
571 SMI_PHY_ADDR_MASK = 0x000007C0,
572 SMI_OP_WRITE = 0x00000020,
3bf61c55
GFT		 573 /* Set to 1, after req done it'll be cleared to 0 */
574 SMI_OP_REQ = 0x00000010,
d7699f87
GFT		 575 SMI_OP_MDIO = 0x00000008, /* Software assess In/Out */
576 SMI_OP_MDOE = 0x00000004, /* Software Output Enable */
577 SMI_OP_MDC = 0x00000002, /* Software CLK Control */
578 SMI_OP_MDEN = 0x00000001, /* Software access Enable */
579};
580enum jme_smi_bit_shift
581{
582 SMI_DATA_SHIFT = 16,
583 SMI_REG_ADDR_SHIFT = 11,
584 SMI_PHY_ADDR_SHIFT = 6,
585};
586__always_inline __u32 smi_reg_addr(int x)
587{
588 return (((x) << SMI_REG_ADDR_SHIFT) & SMI_REG_ADDR_MASK);
589}
590__always_inline __u32 smi_phy_addr(int x)
591{
592 return (((x) << SMI_PHY_ADDR_SHIFT) & SMI_PHY_ADDR_MASK);
593}
594#define JME_PHY_TIMEOUT 1000 /* 1000 usec */
3bf61c55 595#define JME_PHY_RST_TIMEOUT 100 /* 100 usec */
d7699f87
GFT		 596
597/*
598 * Global Host Control
599 */
600enum jme_ghc_bit_mask {
601 GHC_SWRST = 0x40000000,
602 GHC_DPX = 0x00000040,
603 GHC_SPEED = 0x00000030,
604 GHC_LINK_POLL = 0x00000001,
605};
606enum jme_ghc_speed_val {
607 GHC_SPEED_10M = 0x00000010,
608 GHC_SPEED_100M = 0x00000020,
609 GHC_SPEED_1000M = 0x00000030,
610};
611
612/*
3bf61c55 613 * Giga PHY Status Registers
d7699f87
GFT		 614 */
615enum jme_phy_link_bit_mask {
616 PHY_LINK_SPEED_MASK = 0x0000C000,
617 PHY_LINK_DUPLEX = 0x00002000,
618 PHY_LINK_SPEEDDPU_RESOLVED = 0x00000800,
619 PHY_LINK_UP = 0x00000400,
620 PHY_LINK_AUTONEG_COMPLETE = 0x00000200,
621};
622enum jme_phy_link_speed_val {
623 PHY_LINK_SPEED_10M = 0x00000000,
624 PHY_LINK_SPEED_100M = 0x00004000,
625 PHY_LINK_SPEED_1000M = 0x00008000,
626};
627#define JME_AUTONEG_TIMEOUT 500 /* 500 ms */
628
629/*
630 * SMB Control and Status
631 */
632enum jme_smbcsr_bit_mask
633{
634 SMBCSR_CNACK = 0x00020000,
635 SMBCSR_RELOAD = 0x00010000,
636 SMBCSR_EEPROMD = 0x00000020,
637};
638#define JME_SMB_TIMEOUT 10 /* 10 msec */
639
640
4330c2f2
GFT		 641/*
642 * General Purpost REG-0
643 */
644enum jme_gpreg0_masks {
3bf61c55
GFT		 645 GPREG0_DISSH = 0xFF000000,
646 GPREG0_PCIRLMT = 0x00300000,
647 GPREG0_PCCNOMUTCLR = 0x00040000,
648 GPREG0_PCCTMR = 0x00000300,
649 GPREG0_PHYADDR = 0x0000001F,
4330c2f2
GFT		 650};
651enum jme_gpreg0_vals {
652 GPREG0_DISSH_DW7 = 0x80000000,
653 GPREG0_DISSH_DW6 = 0x40000000,
654 GPREG0_DISSH_DW5 = 0x20000000,
655 GPREG0_DISSH_DW4 = 0x10000000,
656 GPREG0_DISSH_DW3 = 0x08000000,
657 GPREG0_DISSH_DW2 = 0x04000000,
658 GPREG0_DISSH_DW1 = 0x02000000,
659 GPREG0_DISSH_DW0 = 0x01000000,
660 GPREG0_DISSH_ALL = 0xFF000000,
661
662 GPREG0_PCIRLMT_8 = 0x00000000,
663 GPREG0_PCIRLMT_6 = 0x00100000,
664 GPREG0_PCIRLMT_5 = 0x00200000,
665 GPREG0_PCIRLMT_4 = 0x00300000,
666
667 GPREG0_PCCTMR_16ns = 0x00000000,
3bf61c55
GFT		 668 GPREG0_PCCTMR_256ns = 0x00000100,
669 GPREG0_PCCTMR_1us = 0x00000200,
670 GPREG0_PCCTMR_1ms = 0x00000300,
4330c2f2
GFT		 671
672 GPREG0_PHYADDR_1 = 0x00000001,
673
674 GPREG0_DEFAULT = GPREG0_PCIRLMT_4 |
3bf61c55
GFT		 675 GPREG0_PCCNOMUTCLR |
676 GPREG0_PCCTMR_1us |
677 GPREG0_PHYADDR_1,
4330c2f2
GFT		 678};
679
d7699f87
GFT		 680/*
681 * Interrupt Status Bits
682 */
683enum jme_interrupt_bits
684{
685 INTR_SWINTR = 0x80000000,
686 INTR_TMINTR = 0x40000000,
687 INTR_LINKCH = 0x20000000,
688 INTR_PAUSERCV = 0x10000000,
689 INTR_MAGICRCV = 0x08000000,
690 INTR_WAKERCV = 0x04000000,
691 INTR_PCCRX0TO = 0x02000000,
692 INTR_PCCRX1TO = 0x01000000,
693 INTR_PCCRX2TO = 0x00800000,
694 INTR_PCCRX3TO = 0x00400000,
695 INTR_PCCTXTO = 0x00200000,
696 INTR_PCCRX0 = 0x00100000,
697 INTR_PCCRX1 = 0x00080000,
698 INTR_PCCRX2 = 0x00040000,
699 INTR_PCCRX3 = 0x00020000,
700 INTR_PCCTX = 0x00010000,
701 INTR_RX3EMP = 0x00008000,
702 INTR_RX2EMP = 0x00004000,
703 INTR_RX1EMP = 0x00002000,
704 INTR_RX0EMP = 0x00001000,
705 INTR_RX3 = 0x00000800,
706 INTR_RX2 = 0x00000400,
707 INTR_RX1 = 0x00000200,
708 INTR_RX0 = 0x00000100,
709 INTR_TX7 = 0x00000080,
710 INTR_TX6 = 0x00000040,
711 INTR_TX5 = 0x00000020,
712 INTR_TX4 = 0x00000010,
713 INTR_TX3 = 0x00000008,
714 INTR_TX2 = 0x00000004,
715 INTR_TX1 = 0x00000002,
716 INTR_TX0 = 0x00000001,
717};
718static const __u32 INTR_ENABLE = INTR_LINKCH |
719 INTR_RX0EMP |
3bf61c55
GFT		 720 INTR_PCCRX0TO |
721 INTR_PCCRX0 |
722 INTR_PCCTXTO |
723 INTR_PCCTX;
724
725/*
726 * PCC Control Registers
727 */
728enum jme_pccrx_masks {
729 PCCRXTO_MASK = 0xFFFF0000,
730 PCCRX_MASK = 0x0000FF00,
731};
732enum jme_pcctx_masks {
733 PCCTXTO_MASK = 0xFFFF0000,
734 PCCTX_MASK = 0x0000FF00,
735 PCCTX_QS_MASK = 0x000000FF,
736};
737enum jme_pccrx_shifts {
738 PCCRXTO_SHIFT = 16,
739 PCCRX_SHIFT = 8,
740};
741enum jme_pcctx_shifts {
742 PCCTXTO_SHIFT = 16,
743 PCCTX_SHIFT = 8,
744};
745enum jme_pcctx_bits {
746 PCCTXQ0_EN = 0x00000001,
747 PCCTXQ1_EN = 0x00000002,
748 PCCTXQ2_EN = 0x00000004,
749 PCCTXQ3_EN = 0x00000008,
750 PCCTXQ4_EN = 0x00000010,
751 PCCTXQ5_EN = 0x00000020,
752 PCCTXQ6_EN = 0x00000040,
753 PCCTXQ7_EN = 0x00000080,
754};
755
d7699f87 756
4330c2f2
GFT		 757/*
758 * Shadow base address register bits
759 */
760enum jme_shadow_base_address_bits {
761 SHBA_POSTEN = 0x1,
762};
763
d7699f87
GFT		 764/*
765 * Read/Write MMaped I/O Registers
766 */
767__always_inline __u32 jread32(struct jme_adapter *jme, __u32 reg)
768{
769 return le32_to_cpu(readl(jme->regs + reg));
770}
771__always_inline void jwrite32(struct jme_adapter *jme, __u32 reg, __u32 val)
772{
773 writel(cpu_to_le32(val), jme->regs + reg);
774}
775__always_inline void jwrite32f(struct jme_adapter *jme, __u32 reg, __u32 val)
776{
777 /*
778 * Read after write should cause flush
779 */
780 writel(cpu_to_le32(val), jme->regs + reg);
781 readl(jme->regs + reg);
782}
783
784/*
785 * Function prototypes for ethtool
786 */
787static void jme_get_drvinfo(struct net_device *netdev,
788 struct ethtool_drvinfo *info);
789static int jme_get_settings(struct net_device *netdev,
790 struct ethtool_cmd *ecmd);
791static int jme_set_settings(struct net_device *netdev,
792 struct ethtool_cmd *ecmd);
793static u32 jme_get_link(struct net_device *netdev);
794
795
796/*
797 * Function prototypes for netdev
798 */
799static int jme_open(struct net_device *netdev);
800static int jme_close(struct net_device *netdev);
801static int jme_start_xmit(struct sk_buff *skb, struct net_device *netdev);
802static int jme_set_macaddr(struct net_device *netdev, void *p);
803static void jme_set_multi(struct net_device *netdev);
804
JMicron Ethernet Linux driver