1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2012 Gary Mills
23  *
24  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 /*
28  * Copyright (c) 2009, Pyun YongHyeon <yongari@FreeBSD.org>
29  * All rights reserved.
30  *
31  * Redistribution and use in source and binary forms, with or without
32  * modification, are permitted provided that the following conditions
33  * are met:
34  * 1. Redistributions of source code must retain the above copyright
35  *    notice unmodified, this list of conditions, and the following
36  *    disclaimer.
37  * 2. Redistributions in binary form must reproduce the above copyright
38  *    notice, this list of conditions and the following disclaimer in the
39  *    documentation and/or other materials provided with the distribution.
40  *
41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  */
53 
54 #ifndef _ATGE_L1C_REG_H
55 #define	_ATGE_L1C_REG_H
56 
57 #ifdef __cplusplus
58 	extern "C" {
59 #endif
60 
61 #pragma	pack(1)
62 typedef	struct	l1c_cmb {
63 	uint32_t	intr_status;
64 	uint32_t	rx_prod_cons;
65 	uint32_t	tx_prod_cons;
66 } l1c_cmb_t;
67 
68 typedef	struct	l1c_rx_desc {
69 	uint64_t	addr;
70 	/* No length field. */
71 } l1c_rx_desc_t;
72 
73 typedef	struct	l1c_rx_rdesc {
74 	uint32_t	rdinfo;	/* word 0 */
75 	uint32_t	rss;	/* word 1 */
76 	uint32_t	vtag;	/* word 2 */
77 	uint32_t	status;	/* word 3 */
78 } l1c_rx_rdesc_t;
79 
80 /*
81  * Statistics counters collected by the MAC
82  */
83 typedef	struct l1c_smb {
84 	/* Rx stats. */
85 	uint32_t rx_frames;
86 	uint32_t rx_bcast_frames;
87 	uint32_t rx_mcast_frames;
88 	uint32_t rx_pause_frames;
89 	uint32_t rx_control_frames;
90 	uint32_t rx_crcerrs;
91 	uint32_t rx_lenerrs;
92 	uint32_t rx_bytes;
93 	uint32_t rx_runts;
94 	uint32_t rx_fragments;
95 	uint32_t rx_pkts_64;
96 	uint32_t rx_pkts_65_127;
97 	uint32_t rx_pkts_128_255;
98 	uint32_t rx_pkts_256_511;
99 	uint32_t rx_pkts_512_1023;
100 	uint32_t rx_pkts_1024_1518;
101 	uint32_t rx_pkts_1519_max;
102 	uint32_t rx_pkts_truncated;
103 	uint32_t rx_fifo_oflows;
104 	uint32_t rx_desc_oflows;
105 	uint32_t rx_alignerrs;
106 	uint32_t rx_bcast_bytes;
107 	uint32_t rx_mcast_bytes;
108 	uint32_t rx_pkts_filtered;
109 	/* Tx stats. */
110 	uint32_t tx_frames;
111 	uint32_t tx_bcast_frames;
112 	uint32_t tx_mcast_frames;
113 	uint32_t tx_pause_frames;
114 	uint32_t tx_excess_defer;
115 	uint32_t tx_control_frames;
116 	uint32_t tx_deferred;
117 	uint32_t tx_bytes;
118 	uint32_t tx_pkts_64;
119 	uint32_t tx_pkts_65_127;
120 	uint32_t tx_pkts_128_255;
121 	uint32_t tx_pkts_256_511;
122 	uint32_t tx_pkts_512_1023;
123 	uint32_t tx_pkts_1024_1518;
124 	uint32_t tx_pkts_1519_max;
125 	uint32_t tx_single_colls;
126 	uint32_t tx_multi_colls;
127 	uint32_t tx_late_colls;
128 	uint32_t tx_excess_colls;
129 	uint32_t tx_underrun;
130 	uint32_t tx_desc_underrun;
131 	uint32_t tx_lenerrs;
132 	uint32_t tx_pkts_truncated;
133 	uint32_t tx_bcast_bytes;
134 	uint32_t tx_mcast_bytes;
135 	uint32_t updated;
136 } atge_l1c_smb_t;
137 #pragma	pack()
138 
139 #define	L1C_RX_RING_CNT		256
140 #define	L1C_RR_RING_CNT		L1C_RX_RING_CNT
141 #define	L1C_HEADROOM		6  /* Must be divisible by 2, but not 4. */
142 
143 #define	L1C_RING_ALIGN		16
144 #define	L1C_TX_RING_ALIGN	16
145 #define	L1C_RX_RING_ALIGN	16
146 #define	L1C_RR_RING_ALIGN	16
147 #define	L1C_CMB_ALIGN		16
148 #define	L1C_SMB_ALIGN		16
149 
150 #define	L1C_CMB_BLOCK_SZ	sizeof (struct l1c_cmb)
151 #define	L1C_SMB_BLOCK_SZ	sizeof (struct l1c_smb)
152 
153 #define	L1C_RX_RING_SZ		\
154 	(sizeof (struct l1c_rx_desc) * L1C_RX_RING_CNT)
155 
156 #define	L1C_RR_RING_SZ		\
157 	(sizeof (struct l1c_rx_rdesc) * L1C_RR_RING_CNT)
158 
159 /*
160  * For RX
161  */
162 /* word 0 */
163 #define	L1C_RRD_CSUM_MASK		0x0000FFFF
164 #define	L1C_RRD_RD_CNT_MASK		0x000F0000
165 #define	L1C_RRD_RD_IDX_MASK		0xFFF00000
166 #define	L1C_RRD_CSUM_SHIFT		0
167 #define	L1C_RRD_RD_CNT_SHIFT		16
168 #define	L1C_RRD_RD_IDX_SHIFT		20
169 #define	L1C_RRD_CSUM(x)			\
170 	(((x) & L1C_RRD_CSUM_MASK) >> L1C_RRD_CSUM_SHIFT)
171 #define	L1C_RRD_RD_CNT(x)			\
172 	(((x) & L1C_RRD_RD_CNT_MASK) >> L1C_RRD_RD_CNT_SHIFT)
173 #define	L1C_RRD_RD_IDX(x)			\
174 	(((x) & L1C_RRD_RD_IDX_MASK) >> L1C_RRD_RD_IDX_SHIFT)
175 
176 /* word 2 */
177 #define	L1C_RRD_VLAN_MASK		0x0000FFFF
178 #define	L1C_RRD_HEAD_LEN_MASK		0x00FF0000
179 #define	L1C_RRD_HDS_MASK		0x03000000
180 #define	L1C_RRD_HDS_NONE		0x00000000
181 #define	L1C_RRD_HDS_HEAD		0x01000000
182 #define	L1C_RRD_HDS_DATA		0x02000000
183 #define	L1C_RRD_CPU_MASK		0x0C000000
184 #define	L1C_RRD_HASH_FLAG_MASK		0xF0000000
185 #define	L1C_RRD_VLAN_SHIFT		0
186 #define	L1C_RRD_HEAD_LEN_SHIFT		16
187 #define	L1C_RRD_HDS_SHIFT		24
188 #define	L1C_RRD_CPU_SHIFT		26
189 #define	L1C_RRD_HASH_FLAG_SHIFT		28
190 #define	L1C_RRD_VLAN(x)			\
191 	(((x) & L1C_RRD_VLAN_MASK) >> L1C_RRD_VLAN_SHIFT)
192 #define	L1C_RRD_HEAD_LEN(x)			\
193 	(((x) & L1C_RRD_HEAD_LEN_MASK) >> L1C_RRD_HEAD_LEN_SHIFT)
194 #define	L1C_RRD_CPU(x)			\
195 	(((x) & L1C_RRD_CPU_MASK) >> L1C_RRD_CPU_SHIFT)
196 
197 	/* word3 */
198 #define	L1C_RRD_LEN_MASK		0x00003FFF
199 #define	L1C_RRD_LEN_SHIFT		0
200 #define	L1C_RRD_TCP_UDPCSUM_NOK		0x00004000
201 #define	L1C_RRD_IPCSUM_NOK		0x00008000
202 #define	L1C_RRD_VLAN_TAG		0x00010000
203 #define	L1C_RRD_PROTO_MASK		0x000E0000
204 #define	L1C_RRD_PROTO_IPV4		0x00020000
205 #define	L1C_RRD_PROTO_IPV6		0x000C0000
206 #define	L1C_RRD_ERR_SUM			0x00100000
207 #define	L1C_RRD_ERR_CRC			0x00200000
208 #define	L1C_RRD_ERR_ALIGN		0x00400000
209 #define	L1C_RRD_ERR_TRUNC		0x00800000
210 #define	L1C_RRD_ERR_RUNT		0x01000000
211 #define	L1C_RRD_ERR_ICMP		0x02000000
212 #define	L1C_RRD_BCAST			0x04000000
213 #define	L1C_RRD_MCAST			0x08000000
214 #define	L1C_RRD_SNAP_LLC		0x10000000
215 #define	L1C_RRD_ETHER			0x00000000
216 #define	L1C_RRD_FIFO_FULL		0x20000000
217 #define	L1C_RRD_ERR_LENGTH		0x40000000
218 #define	L1C_RRD_VALID			0x80000000
219 #define	L1C_RRD_BYTES(x)			\
220 	(((x) & L1C_RRD_LEN_MASK) >> L1C_RRD_LEN_SHIFT)
221 #define	L1C_RRD_IPV4(x)			\
222 	(((x) & L1C_RRD_PROTO_MASK) == L1C_RRD_PROTO_IPV4)
223 
224 #define	RRD_PROD_MASK			0x0000FFFF
225 #define	TPD_CONS_MASK			0xFFFF0000
226 #define	TPD_CONS_SHIFT			16
227 #define	CMB_UPDATED			0x00000001
228 #define	RRD_PROD_SHIFT			0
229 
230 #pragma	pack(1)
231 typedef struct l1c_tx_desc {
232 	uint32_t len;
233 #define	L1C_TD_BUFLEN_MASK		0x00003FFF
234 #define	L1C_TD_VLAN_MASK		0xFFFF0000
235 #define	L1C_TD_BUFLEN_SHIFT		0
236 #define	L1C_TX_BYTES(x)			\
237 	(((x) << L1C_TD_BUFLEN_SHIFT) & L1C_TD_BUFLEN_MASK)
238 #define	L1C_TD_VLAN_SHIFT		16
239 
240 	uint32_t flags;
241 #define	L1C_TD_L4HDR_OFFSET_MASK	0x000000FF	/* byte unit */
242 #define	L1C_TD_TCPHDR_OFFSET_MASK	0x000000FF	/* byte unit */
243 #define	L1C_TD_PLOAD_OFFSET_MASK	0x000000FF	/* 2 bytes unit */
244 #define	L1C_TD_CUSTOM_CSUM		0x00000100
245 #define	L1C_TD_IPCSUM			0x00000200
246 #define	L1C_TD_TCPCSUM			0x00000400
247 #define	L1C_TD_UDPCSUM			0x00000800
248 #define	L1C_TD_TSO			0x00001000
249 #define	L1C_TD_TSO_DESCV1		0x00000000
250 #define	L1C_TD_TSO_DESCV2		0x00002000
251 #define	L1C_TD_CON_VLAN_TAG		0x00004000
252 #define	L1C_TD_INS_VLAN_TAG		0x00008000
253 #define	L1C_TD_IPV4_DESCV2		0x00010000
254 #define	L1C_TD_LLC_SNAP			0x00020000
255 #define	L1C_TD_ETHERNET			0x00000000
256 #define	L1C_TD_CUSTOM_CSUM_OFFSET_MASK	0x03FC0000	/* 2 bytes unit */
257 #define	L1C_TD_CUSTOM_CSUM_EVEN_PAD	0x40000000
258 #define	L1C_TD_MSS_MASK			0x7FFC0000
259 #define	L1C_TD_EOP			0x80000000
260 #define	L1C_TD_L4HDR_OFFSET_SHIFT	0
261 #define	L1C_TD_TCPHDR_OFFSET_SHIFT	0
262 #define	L1C_TD_PLOAD_OFFSET_SHIFT	0
263 #define	L1C_TD_CUSTOM_CSUM_OFFSET_SHIFT	18
264 #define	L1C_TD_MSS_SHIFT		18
265 
266 	uint64_t addr;
267 } l1c_tx_desc_t;
268 #pragma	pack()
269 
270 /*
271  * All descriptors and CMB/SMB share the same high address.
272  */
273 
274 /* From Freebsd if_alcreg.h */
275 #define	L1C_RSS_IDT_TABLE0		0x14E0
276 
277 #define	L1C_RX_BASE_ADDR_HI		0x1540
278 
279 #define	L1C_TX_BASE_ADDR_HI		0x1544
280 
281 #define	L1C_SMB_BASE_ADDR_HI		0x1548
282 
283 #define	L1C_SMB_BASE_ADDR_LO		0x154C
284 
285 #define	L1C_RD0_HEAD_ADDR_LO		0x1550
286 
287 #define	L1C_RD1_HEAD_ADDR_LO		0x1554
288 
289 #define	L1C_RD2_HEAD_ADDR_LO		0x1558
290 
291 #define	L1C_RD3_HEAD_ADDR_LO		0x155C
292 
293 #define	L1C_RD_RING_CNT			0x1560
294 #define	RD_RING_CNT_MASK		0x00000FFF
295 #define	RD_RING_CNT_SHIFT		0
296 
297 #define	L1C_RX_BUF_SIZE			0x1564
298 #define	RX_BUF_SIZE_MASK		0x0000FFFF
299 /*
300  * If larger buffer size than 1536 is specified the controller
301  * will be locked up. This is hardware limitation.
302  */
303 #define	RX_BUF_SIZE_MAX			1536
304 
305 #define	L1C_RRD0_HEAD_ADDR_LO		0x1568
306 
307 #define	L1C_RRD1_HEAD_ADDR_LO		0x156C
308 
309 #define	L1C_RRD2_HEAD_ADDR_LO		0x1570
310 
311 #define	L1C_RRD3_HEAD_ADDR_LO		0x1574
312 
313 #define	L1C_RRD_RING_CNT		0x1578
314 #define	RRD_RING_CNT_MASK		0x00000FFF
315 #define	RRD_RING_CNT_SHIFT		0
316 
317 #define	L1C_TDH_HEAD_ADDR_LO		0x157C
318 
319 #define	L1C_TDL_HEAD_ADDR_LO		0x1580
320 
321 #define	L1C_TD_RING_CNT			0x1584
322 #define	TD_RING_CNT_MASK		0x0000FFFF
323 #define	TD_RING_CNT_SHIFT		0
324 
325 #define	L1C_CMB_BASE_ADDR_LO		0x1588
326 
327 #define	L1C_RXQ_CFG			0x15A0
328 #define	RXQ_CFG_ASPM_THROUGHPUT_LIMIT_MASK	0x00000003
329 #define	RXQ_CFG_ASPM_THROUGHPUT_LIMIT_NONE	0x00000000
330 #define	RXQ_CFG_ASPM_THROUGHPUT_LIMIT_1M	0x00000001
331 #define	RXQ_CFG_ASPM_THROUGHPUT_LIMIT_10M	0x00000002
332 #define	RXQ_CFG_ASPM_THROUGHPUT_LIMIT_100M	0x00000003
333 
334 #define	L1C_RSS_CPU			0x15B8
335 
336 /* End of Freebsd if_alcreg.h */
337 
338 /*
339  * PHY registers.
340  */
341 #define	PHY_CDTS_STAT_OK	0x0000
342 #define	PHY_CDTS_STAT_SHORT	0x0100
343 #define	PHY_CDTS_STAT_OPEN	0x0200
344 #define	PHY_CDTS_STAT_INVAL	0x0300
345 #define	PHY_CDTS_STAT_MASK	0x0300
346 
347 /*
348  * MAC CFG registers (L1C specific)
349  */
350 #define	L1C_CFG_SINGLE_PAUSE_ENB	0x10000000
351 
352 /*
353  * DMA CFG registers (L1C specific)
354  */
355 #define	DMA_CFG_RD_ENB			0x00000400
356 #define	DMA_CFG_WR_ENB			0x00000800
357 #define	DMA_CFG_RD_BURST_MASK		0x07
358 #define	DMA_CFG_RD_BURST_SHIFT		4
359 #define	DMA_CFG_WR_BURST_MASK		0x07
360 #define	DMA_CFG_WR_BURST_SHIFT		7
361 #define	DMA_CFG_SMB_DIS			0x01000000
362 
363 #define	L1C_RD_LEN_MASK			0x0000FFFF
364 #define	L1C_RD_LEN_SHIFT		0
365 
366 #define	L1C_SRAM_RD_ADDR		0x1500
367 #define	L1C_SRAM_RD_LEN			0x1504
368 #define	L1C_SRAM_RRD_ADDR		0x1508
369 #define	L1C_SRAM_RRD_LEN		0x150C
370 #define	L1C_SRAM_TPD_ADDR		0x1510
371 #define	L1C_SRAM_TPD_LEN		0x1514
372 #define	L1C_SRAM_TRD_ADDR		0x1518
373 #define	L1C_SRAM_TRD_LEN		0x151C
374 #define	L1C_SRAM_RX_FIFO_ADDR		0x1520
375 #define	L1C_SRAM_RX_FIFO_LEN		0x1524
376 #define	L1C_SRAM_TX_FIFO_ADDR		0x1528
377 #define	L1C_SRAM_TX_FIFO_LEN		0x152C
378 
379 #define	L1C_RXQ_CFG_RD_BURST_MASK	0x03f00000
380 #define	L1C_RXQ_CFG_RD_BURST_SHIFT	20
381 
382 #define	L1C_TXQ_CFG			0x1590
383 #define	TXQ_CFG_TPD_FETCH_THRESH_MASK	0x00003F00
384 #define	L1C_TXQ_CFG_TPD_BURST_DEFAULT	5
385 #define	TXQ_CFG_TPD_FETCH_THRESH_SHIFT	8
386 #define	TXQ_CFG_TPD_FETCH_DEFAULT	16
387 
388 #define	L1C_TXF_WATER_MARK		0x1598	/* 8 bytes unit */
389 #define	TXF_WATER_MARK_HI_MASK		0x00000FFF
390 #define	TXF_WATER_MARK_LO_MASK		0x0FFF0000
391 #define	TXF_WATER_MARK_BURST_ENB	0x80000000
392 #define	TXF_WATER_MARK_LO_SHIFT		0
393 #define	TXF_WATER_MARK_HI_SHIFT		16
394 
395 #define	L1C_RD_DMA_CFG			0x15AC
396 #define	RD_DMA_CFG_THRESH_MASK		0x00000FFF	/* 8 bytes unit */
397 #define	RD_DMA_CFG_TIMER_MASK		0xFFFF0000
398 #define	RD_DMA_CFG_THRESH_SHIFT		0
399 #define	RD_DMA_CFG_TIMER_SHIFT		16
400 #define	RD_DMA_CFG_THRESH_DEFAULT	0x100
401 #define	RD_DMA_CFG_TIMER_DEFAULT	0
402 #define	RD_DMA_CFG_TICK_USECS		8
403 #define	L1C_RD_DMA_CFG_USECS(x)		((x) / RD_DMA_CFG_TICK_USECS)
404 
405 /* CMB DMA Write Threshold Register */
406 #define	L1C_CMB_WR_THRESH		0x15D4
407 #define	CMB_WR_THRESH_RRD_MASK		0x000007FF
408 #define	CMB_WR_THRESH_TPD_MASK		0x07FF0000
409 #define	CMB_WR_THRESH_RRD_SHIFT		0
410 #define	CMB_WR_THRESH_RRD_DEFAULT	4
411 #define	CMB_WR_THRESH_TPD_SHIFT		16
412 #define	CMB_WR_THRESH_TPD_DEFAULT	4
413 
414 /* SMB auto DMA timer register */
415 #define	L1C_SMB_TIMER			0x15E4
416 
417 #define	L1C_CSMB_CTRL			0x15D0
418 #define	CSMB_CTRL_CMB_KICK		0x00000001
419 #define	CSMB_CTRL_SMB_KICK		0x00000002
420 #define	CSMB_CTRL_CMB_ENB		0x00000004
421 #define	CSMB_CTRL_SMB_ENB		0x00000008
422 
423 /* From Freebsd if_alcreg.h */
424 #define	L1C_INTR_SMB			0x00000001
425 #define	L1C_INTR_TIMER			0x00000002
426 #define	L1C_INTR_MANUAL_TIMER		0x00000004
427 #define	L1C_INTR_RX_FIFO_OFLOW		0x00000008
428 #define	L1C_INTR_RD0_UNDERRUN		0x00000010
429 #define	L1C_INTR_RD1_UNDERRUN		0x00000020
430 #define	L1C_INTR_RD2_UNDERRUN		0x00000040
431 #define	L1C_INTR_RD3_UNDERRUN		0x00000080
432 #define	L1C_INTR_TX_FIFO_UNDERRUN	0x00000100
433 #define	L1C_INTR_DMA_RD_TO_RST		0x00000200
434 #define	L1C_INTR_DMA_WR_TO_RST		0x00000400
435 #define	L1C_INTR_TX_CREDIT		0x00000800
436 #define	L1C_INTR_GPHY			0x00001000
437 #define	L1C_INTR_GPHY_LOW_PW		0x00002000
438 #define	L1C_INTR_TXQ_TO_RST		0x00004000
439 #define	L1C_INTR_TX_PKT			0x00008000
440 #define	L1C_INTR_RX_PKT0		0x00010000
441 #define	L1C_INTR_RX_PKT1		0x00020000
442 #define	L1C_INTR_RX_PKT2		0x00040000
443 #define	L1C_INTR_RX_PKT3		0x00080000
444 #define	L1C_INTR_MAC_RX			0x00100000
445 #define	L1C_INTR_MAC_TX			0x00200000
446 #define	L1C_INTR_UNDERRUN		0x00400000
447 #define	L1C_INTR_FRAME_ERROR		0x00800000
448 #define	L1C_INTR_FRAME_OK		0x01000000
449 #define	L1C_INTR_CSUM_ERROR		0x02000000
450 #define	L1C_INTR_PHY_LINK_DOWN		0x04000000
451 #define	L1C_INTR_DIS_INT		0x80000000
452 
453 #define	L1C_INTR_RX_PKT			L1C_INTR_RX_PKT0
454 #define	L1C_INTR_RD_UNDERRUN		L1C_INTR_RD0_UNDERRUN
455 
456 #define	L1C_INTRS				\
457 	(L1C_INTR_DMA_RD_TO_RST | L1C_INTR_DMA_WR_TO_RST | \
458 	L1C_INTR_TXQ_TO_RST| L1C_INTR_RX_PKT | L1C_INTR_TX_PKT | \
459 	L1C_INTR_RX_FIFO_OFLOW | L1C_INTR_RD_UNDERRUN | \
460 	L1C_INTR_TX_FIFO_UNDERRUN)
461 
462 #define	L1C_RXQ_RRD_PAUSE_THRESH	0x15AC
463 #define	RXQ_RRD_PAUSE_THRESH_HI_MASK	0x00000FFF
464 #define	RXQ_RRD_PAUSE_THRESH_LO_MASK	0x0FFF0000
465 #define	RXQ_RRD_PAUSE_THRESH_HI_SHIFT	0
466 #define	RXQ_RRD_PAUSE_THRESH_LO_SHIFT	16
467 
468 /* RX/TX count-down timer to trigger CMB-write. */
469 #define	L1C_CMB_WR_TIMER			0x15D8
470 #define	CMB_WR_TIMER_RX_MASK		0x0000FFFF
471 #define	CMB_WR_TIMER_TX_MASK		0xFFFF0000
472 #define	CMB_WR_TIMER_RX_SHIFT		0
473 #define	CMB_WR_TIMER_TX_SHIFT		16
474 
475 /*
476  * Useful macros.
477  */
478 #define	L1C_RX_NSEGS(x)	\
479 	(((x) & L1C_RRD_NSEGS_MASK) >> L1C_RRD_NSEGS_SHIFT)
480 #define	L1C_RX_CONS(x)	\
481 	(((x) & L1C_RRD_CONS_MASK) >> L1C_RRD_CONS_SHIFT)
482 #define	L1C_RX_CSUM(x)	\
483 	(((x) & L1C_RRD_CSUM_MASK) >> L1C_RRD_CSUM_SHIFT)
484 #define	L1C_RX_BYTES(x)	\
485 	(((x) & L1C_RRD_LEN_MASK) >> L1C_RRD_LEN_SHIFT)
486 
487 
488 #ifdef __cplusplus
489 }
490 #endif
491 
492 #endif	/* _ATGE_L1C_REG_H */
493