1 /*
2  * Copyright (C) 2003 - 2009 NetXen, Inc.
3  * Copyright (C) 2009 - QLogic Corporation.
4  * All rights reserved.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
18  *
19  * The full GNU General Public License is included in this distribution
20  * in the file called "COPYING".
21  *
22  */
23 
24 #include <linux/types.h>
25 #include <linux/delay.h>
26 #include <linux/pci.h>
27 #include <asm/io.h>
28 #include <linux/netdevice.h>
29 #include <linux/ethtool.h>
30 
31 #include "netxen_nic.h"
32 #include "netxen_nic_hw.h"
33 
34 struct netxen_nic_stats {
35 	char stat_string[ETH_GSTRING_LEN];
36 	int sizeof_stat;
37 	int stat_offset;
38 };
39 
40 #define NETXEN_NIC_STAT(m) sizeof(((struct netxen_adapter *)0)->m), \
41 			offsetof(struct netxen_adapter, m)
42 
43 #define NETXEN_NIC_PORT_WINDOW 0x10000
44 #define NETXEN_NIC_INVALID_DATA 0xDEADBEEF
45 
46 static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
47 	{"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
48 	{"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
49 	{"rx_dropped", NETXEN_NIC_STAT(stats.rxdropped)},
50 	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
51 	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
52 	{"rx_pkts", NETXEN_NIC_STAT(stats.rx_pkts)},
53 	{"lro_pkts", NETXEN_NIC_STAT(stats.lro_pkts)},
54 	{"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
55 	{"tx_bytes", NETXEN_NIC_STAT(stats.txbytes)},
56 };
57 
58 #define NETXEN_NIC_STATS_LEN	ARRAY_SIZE(netxen_nic_gstrings_stats)
59 
60 static const char netxen_nic_gstrings_test[][ETH_GSTRING_LEN] = {
61 	"Register_Test_on_offline",
62 	"Link_Test_on_offline"
63 };
64 
65 #define NETXEN_NIC_TEST_LEN	ARRAY_SIZE(netxen_nic_gstrings_test)
66 
67 #define NETXEN_NIC_REGS_COUNT 30
68 #define NETXEN_NIC_REGS_LEN (NETXEN_NIC_REGS_COUNT * sizeof(__le32))
69 #define NETXEN_MAX_EEPROM_LEN   1024
70 
71 static int netxen_nic_get_eeprom_len(struct net_device *dev)
72 {
73 	return NETXEN_FLASH_TOTAL_SIZE;
74 }
75 
76 static void
77 netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
78 {
79 	struct netxen_adapter *adapter = netdev_priv(dev);
80 	u32 fw_major = 0;
81 	u32 fw_minor = 0;
82 	u32 fw_build = 0;
83 
84 	strlcpy(drvinfo->driver, netxen_nic_driver_name,
85 		sizeof(drvinfo->driver));
86 	strlcpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID,
87 		sizeof(drvinfo->version));
88 	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
89 	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
90 	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
91 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
92 		"%d.%d.%d", fw_major, fw_minor, fw_build);
93 
94 	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
95 		sizeof(drvinfo->bus_info));
96 }
97 
98 static int
99 netxen_nic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
100 {
101 	struct netxen_adapter *adapter = netdev_priv(dev);
102 	int check_sfp_module = 0;
103 
104 	/* read which mode */
105 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
106 		ecmd->supported = (SUPPORTED_10baseT_Half |
107 				   SUPPORTED_10baseT_Full |
108 				   SUPPORTED_100baseT_Half |
109 				   SUPPORTED_100baseT_Full |
110 				   SUPPORTED_1000baseT_Half |
111 				   SUPPORTED_1000baseT_Full);
112 
113 		ecmd->advertising = (ADVERTISED_100baseT_Half |
114 				     ADVERTISED_100baseT_Full |
115 				     ADVERTISED_1000baseT_Half |
116 				     ADVERTISED_1000baseT_Full);
117 
118 		ecmd->port = PORT_TP;
119 
120 		ethtool_cmd_speed_set(ecmd, adapter->link_speed);
121 		ecmd->duplex = adapter->link_duplex;
122 		ecmd->autoneg = adapter->link_autoneg;
123 
124 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
125 		u32 val;
126 
127 		val = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
128 		if (val == NETXEN_PORT_MODE_802_3_AP) {
129 			ecmd->supported = SUPPORTED_1000baseT_Full;
130 			ecmd->advertising = ADVERTISED_1000baseT_Full;
131 		} else {
132 			ecmd->supported = SUPPORTED_10000baseT_Full;
133 			ecmd->advertising = ADVERTISED_10000baseT_Full;
134 		}
135 
136 		if (netif_running(dev) && adapter->has_link_events) {
137 			ethtool_cmd_speed_set(ecmd, adapter->link_speed);
138 			ecmd->autoneg = adapter->link_autoneg;
139 			ecmd->duplex = adapter->link_duplex;
140 			goto skip;
141 		}
142 
143 		ecmd->port = PORT_TP;
144 
145 		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
146 			u16 pcifn = adapter->ahw.pci_func;
147 
148 			val = NXRD32(adapter, P3_LINK_SPEED_REG(pcifn));
149 			ethtool_cmd_speed_set(ecmd, P3_LINK_SPEED_MHZ *
150 					      P3_LINK_SPEED_VAL(pcifn, val));
151 		} else
152 			ethtool_cmd_speed_set(ecmd, SPEED_10000);
153 
154 		ecmd->duplex = DUPLEX_FULL;
155 		ecmd->autoneg = AUTONEG_DISABLE;
156 	} else
157 		return -EIO;
158 
159 skip:
160 	ecmd->phy_address = adapter->physical_port;
161 	ecmd->transceiver = XCVR_EXTERNAL;
162 
163 	switch (adapter->ahw.board_type) {
164 	case NETXEN_BRDTYPE_P2_SB35_4G:
165 	case NETXEN_BRDTYPE_P2_SB31_2G:
166 	case NETXEN_BRDTYPE_P3_REF_QG:
167 	case NETXEN_BRDTYPE_P3_4_GB:
168 	case NETXEN_BRDTYPE_P3_4_GB_MM:
169 
170 		ecmd->supported |= SUPPORTED_Autoneg;
171 		ecmd->advertising |= ADVERTISED_Autoneg;
172 	case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
173 	case NETXEN_BRDTYPE_P3_10G_CX4:
174 	case NETXEN_BRDTYPE_P3_10G_CX4_LP:
175 	case NETXEN_BRDTYPE_P3_10000_BASE_T:
176 		ecmd->supported |= SUPPORTED_TP;
177 		ecmd->advertising |= ADVERTISED_TP;
178 		ecmd->port = PORT_TP;
179 		ecmd->autoneg = (adapter->ahw.board_type ==
180 				 NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
181 		    (AUTONEG_DISABLE) : (adapter->link_autoneg);
182 		break;
183 	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
184 	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
185 	case NETXEN_BRDTYPE_P3_IMEZ:
186 	case NETXEN_BRDTYPE_P3_XG_LOM:
187 	case NETXEN_BRDTYPE_P3_HMEZ:
188 		ecmd->supported |= SUPPORTED_MII;
189 		ecmd->advertising |= ADVERTISED_MII;
190 		ecmd->port = PORT_MII;
191 		ecmd->autoneg = AUTONEG_DISABLE;
192 		break;
193 	case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
194 	case NETXEN_BRDTYPE_P3_10G_SFP_CT:
195 	case NETXEN_BRDTYPE_P3_10G_SFP_QT:
196 		ecmd->advertising |= ADVERTISED_TP;
197 		ecmd->supported |= SUPPORTED_TP;
198 		check_sfp_module = netif_running(dev) &&
199 			adapter->has_link_events;
200 	case NETXEN_BRDTYPE_P2_SB31_10G:
201 	case NETXEN_BRDTYPE_P3_10G_XFP:
202 		ecmd->supported |= SUPPORTED_FIBRE;
203 		ecmd->advertising |= ADVERTISED_FIBRE;
204 		ecmd->port = PORT_FIBRE;
205 		ecmd->autoneg = AUTONEG_DISABLE;
206 		break;
207 	case NETXEN_BRDTYPE_P3_10G_TP:
208 		if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
209 			ecmd->autoneg = AUTONEG_DISABLE;
210 			ecmd->supported |= (SUPPORTED_FIBRE | SUPPORTED_TP);
211 			ecmd->advertising |=
212 				(ADVERTISED_FIBRE | ADVERTISED_TP);
213 			ecmd->port = PORT_FIBRE;
214 			check_sfp_module = netif_running(dev) &&
215 				adapter->has_link_events;
216 		} else {
217 			ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
218 			ecmd->advertising |=
219 				(ADVERTISED_TP | ADVERTISED_Autoneg);
220 			ecmd->port = PORT_TP;
221 		}
222 		break;
223 	default:
224 		printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
225 				adapter->ahw.board_type);
226 		return -EIO;
227 	}
228 
229 	if (check_sfp_module) {
230 		switch (adapter->module_type) {
231 		case LINKEVENT_MODULE_OPTICAL_UNKNOWN:
232 		case LINKEVENT_MODULE_OPTICAL_SRLR:
233 		case LINKEVENT_MODULE_OPTICAL_LRM:
234 		case LINKEVENT_MODULE_OPTICAL_SFP_1G:
235 			ecmd->port = PORT_FIBRE;
236 			break;
237 		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE:
238 		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN:
239 		case LINKEVENT_MODULE_TWINAX:
240 			ecmd->port = PORT_TP;
241 			break;
242 		default:
243 			ecmd->port = -1;
244 		}
245 	}
246 
247 	if (!netif_running(dev) || !adapter->ahw.linkup) {
248 		ecmd->duplex = DUPLEX_UNKNOWN;
249 		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
250 	}
251 
252 	return 0;
253 }
254 
255 static int
256 netxen_nic_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
257 {
258 	struct netxen_adapter *adapter = netdev_priv(dev);
259 	u32 speed = ethtool_cmd_speed(ecmd);
260 	int ret;
261 
262 	if (adapter->ahw.port_type != NETXEN_NIC_GBE)
263 		return -EOPNOTSUPP;
264 
265 	if (!(adapter->capabilities & NX_FW_CAPABILITY_GBE_LINK_CFG))
266 		return -EOPNOTSUPP;
267 
268 	ret = nx_fw_cmd_set_gbe_port(adapter, speed, ecmd->duplex,
269 				     ecmd->autoneg);
270 	if (ret == NX_RCODE_NOT_SUPPORTED)
271 		return -EOPNOTSUPP;
272 	else if (ret)
273 		return -EIO;
274 
275 	adapter->link_speed = speed;
276 	adapter->link_duplex = ecmd->duplex;
277 	adapter->link_autoneg = ecmd->autoneg;
278 
279 	if (!netif_running(dev))
280 		return 0;
281 
282 	dev->netdev_ops->ndo_stop(dev);
283 	return dev->netdev_ops->ndo_open(dev);
284 }
285 
286 static int netxen_nic_get_regs_len(struct net_device *dev)
287 {
288 	return NETXEN_NIC_REGS_LEN;
289 }
290 
291 static void
292 netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
293 {
294 	struct netxen_adapter *adapter = netdev_priv(dev);
295 	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
296 	struct nx_host_sds_ring *sds_ring;
297 	u32 *regs_buff = p;
298 	int ring, i = 0;
299 	int port = adapter->physical_port;
300 
301 	memset(p, 0, NETXEN_NIC_REGS_LEN);
302 
303 	regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
304 	    (adapter->pdev)->device;
305 
306 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
307 		return;
308 
309 	regs_buff[i++] = NXRD32(adapter, CRB_CMDPEG_STATE);
310 	regs_buff[i++] = NXRD32(adapter, CRB_RCVPEG_STATE);
311 	regs_buff[i++] = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
312 	regs_buff[i++] = NXRDIO(adapter, adapter->crb_int_state_reg);
313 	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
314 	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_STATE);
315 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
316 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
317 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS2);
318 
319 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_0+0x3c);
320 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_1+0x3c);
321 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_2+0x3c);
322 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_3+0x3c);
323 
324 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
325 
326 		regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_4+0x3c);
327 		i += 2;
328 
329 		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE_P3);
330 		regs_buff[i++] = le32_to_cpu(*(adapter->tx_ring->hw_consumer));
331 
332 	} else {
333 		i++;
334 
335 		regs_buff[i++] = NXRD32(adapter,
336 					NETXEN_NIU_XGE_CONFIG_0+(0x10000*port));
337 		regs_buff[i++] = NXRD32(adapter,
338 					NETXEN_NIU_XGE_CONFIG_1+(0x10000*port));
339 
340 		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE);
341 		regs_buff[i++] = NXRDIO(adapter,
342 				 adapter->tx_ring->crb_cmd_consumer);
343 	}
344 
345 	regs_buff[i++] = NXRDIO(adapter, adapter->tx_ring->crb_cmd_producer);
346 
347 	regs_buff[i++] = NXRDIO(adapter,
348 			 recv_ctx->rds_rings[0].crb_rcv_producer);
349 	regs_buff[i++] = NXRDIO(adapter,
350 			 recv_ctx->rds_rings[1].crb_rcv_producer);
351 
352 	regs_buff[i++] = adapter->max_sds_rings;
353 
354 	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
355 		sds_ring = &(recv_ctx->sds_rings[ring]);
356 		regs_buff[i++] = NXRDIO(adapter,
357 					sds_ring->crb_sts_consumer);
358 	}
359 }
360 
361 static u32 netxen_nic_test_link(struct net_device *dev)
362 {
363 	struct netxen_adapter *adapter = netdev_priv(dev);
364 	u32 val, port;
365 
366 	port = adapter->physical_port;
367 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
368 		val = NXRD32(adapter, CRB_XG_STATE_P3);
369 		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
370 		return (val == XG_LINK_UP_P3) ? 0 : 1;
371 	} else {
372 		val = NXRD32(adapter, CRB_XG_STATE);
373 		val = (val >> port*8) & 0xff;
374 		return (val == XG_LINK_UP) ? 0 : 1;
375 	}
376 }
377 
378 static int
379 netxen_nic_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
380 		      u8 *bytes)
381 {
382 	struct netxen_adapter *adapter = netdev_priv(dev);
383 	int offset;
384 	int ret;
385 
386 	if (eeprom->len == 0)
387 		return -EINVAL;
388 
389 	eeprom->magic = (adapter->pdev)->vendor |
390 			((adapter->pdev)->device << 16);
391 	offset = eeprom->offset;
392 
393 	ret = netxen_rom_fast_read_words(adapter, offset, bytes,
394 						eeprom->len);
395 	if (ret < 0)
396 		return ret;
397 
398 	return 0;
399 }
400 
401 static void
402 netxen_nic_get_ringparam(struct net_device *dev,
403 		struct ethtool_ringparam *ring)
404 {
405 	struct netxen_adapter *adapter = netdev_priv(dev);
406 
407 	ring->rx_pending = adapter->num_rxd;
408 	ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
409 	ring->rx_jumbo_pending += adapter->num_lro_rxd;
410 	ring->tx_pending = adapter->num_txd;
411 
412 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
413 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
414 		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
415 	} else {
416 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
417 		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
418 	}
419 
420 	ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
421 }
422 
423 static u32
424 netxen_validate_ringparam(u32 val, u32 min, u32 max, char *r_name)
425 {
426 	u32 num_desc;
427 	num_desc = max(val, min);
428 	num_desc = min(num_desc, max);
429 	num_desc = roundup_pow_of_two(num_desc);
430 
431 	if (val != num_desc) {
432 		printk(KERN_INFO "%s: setting %s ring size %d instead of %d\n",
433 		       netxen_nic_driver_name, r_name, num_desc, val);
434 	}
435 
436 	return num_desc;
437 }
438 
439 static int
440 netxen_nic_set_ringparam(struct net_device *dev,
441 		struct ethtool_ringparam *ring)
442 {
443 	struct netxen_adapter *adapter = netdev_priv(dev);
444 	u16 max_rcv_desc = MAX_RCV_DESCRIPTORS_10G;
445 	u16 max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
446 	u16 num_rxd, num_jumbo_rxd, num_txd;
447 
448 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
449 		return -EOPNOTSUPP;
450 
451 	if (ring->rx_mini_pending)
452 		return -EOPNOTSUPP;
453 
454 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
455 		max_rcv_desc = MAX_RCV_DESCRIPTORS_1G;
456 		max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
457 	}
458 
459 	num_rxd = netxen_validate_ringparam(ring->rx_pending,
460 			MIN_RCV_DESCRIPTORS, max_rcv_desc, "rx");
461 
462 	num_jumbo_rxd = netxen_validate_ringparam(ring->rx_jumbo_pending,
463 			MIN_JUMBO_DESCRIPTORS, max_jumbo_desc, "rx jumbo");
464 
465 	num_txd = netxen_validate_ringparam(ring->tx_pending,
466 			MIN_CMD_DESCRIPTORS, MAX_CMD_DESCRIPTORS, "tx");
467 
468 	if (num_rxd == adapter->num_rxd && num_txd == adapter->num_txd &&
469 			num_jumbo_rxd == adapter->num_jumbo_rxd)
470 		return 0;
471 
472 	adapter->num_rxd = num_rxd;
473 	adapter->num_jumbo_rxd = num_jumbo_rxd;
474 	adapter->num_txd = num_txd;
475 
476 	return netxen_nic_reset_context(adapter);
477 }
478 
479 static void
480 netxen_nic_get_pauseparam(struct net_device *dev,
481 			  struct ethtool_pauseparam *pause)
482 {
483 	struct netxen_adapter *adapter = netdev_priv(dev);
484 	__u32 val;
485 	int port = adapter->physical_port;
486 
487 	pause->autoneg = 0;
488 
489 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
490 		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
491 			return;
492 		/* get flow control settings */
493 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
494 		pause->rx_pause = netxen_gb_get_rx_flowctl(val);
495 		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
496 		switch (port) {
497 		case 0:
498 			pause->tx_pause = !(netxen_gb_get_gb0_mask(val));
499 			break;
500 		case 1:
501 			pause->tx_pause = !(netxen_gb_get_gb1_mask(val));
502 			break;
503 		case 2:
504 			pause->tx_pause = !(netxen_gb_get_gb2_mask(val));
505 			break;
506 		case 3:
507 		default:
508 			pause->tx_pause = !(netxen_gb_get_gb3_mask(val));
509 			break;
510 		}
511 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
512 		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
513 			return;
514 		pause->rx_pause = 1;
515 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
516 		if (port == 0)
517 			pause->tx_pause = !(netxen_xg_get_xg0_mask(val));
518 		else
519 			pause->tx_pause = !(netxen_xg_get_xg1_mask(val));
520 	} else {
521 		printk(KERN_ERR"%s: Unknown board type: %x\n",
522 				netxen_nic_driver_name, adapter->ahw.port_type);
523 	}
524 }
525 
526 static int
527 netxen_nic_set_pauseparam(struct net_device *dev,
528 			  struct ethtool_pauseparam *pause)
529 {
530 	struct netxen_adapter *adapter = netdev_priv(dev);
531 	__u32 val;
532 	int port = adapter->physical_port;
533 
534 	/* not supported */
535 	if (pause->autoneg)
536 		return -EINVAL;
537 
538 	/* read mode */
539 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
540 		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
541 			return -EIO;
542 		/* set flow control */
543 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
544 
545 		if (pause->rx_pause)
546 			netxen_gb_rx_flowctl(val);
547 		else
548 			netxen_gb_unset_rx_flowctl(val);
549 
550 		NXWR32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
551 				val);
552 		/* set autoneg */
553 		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
554 		switch (port) {
555 		case 0:
556 			if (pause->tx_pause)
557 				netxen_gb_unset_gb0_mask(val);
558 			else
559 				netxen_gb_set_gb0_mask(val);
560 			break;
561 		case 1:
562 			if (pause->tx_pause)
563 				netxen_gb_unset_gb1_mask(val);
564 			else
565 				netxen_gb_set_gb1_mask(val);
566 			break;
567 		case 2:
568 			if (pause->tx_pause)
569 				netxen_gb_unset_gb2_mask(val);
570 			else
571 				netxen_gb_set_gb2_mask(val);
572 			break;
573 		case 3:
574 		default:
575 			if (pause->tx_pause)
576 				netxen_gb_unset_gb3_mask(val);
577 			else
578 				netxen_gb_set_gb3_mask(val);
579 			break;
580 		}
581 		NXWR32(adapter, NETXEN_NIU_GB_PAUSE_CTL, val);
582 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
583 		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
584 			return -EIO;
585 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
586 		if (port == 0) {
587 			if (pause->tx_pause)
588 				netxen_xg_unset_xg0_mask(val);
589 			else
590 				netxen_xg_set_xg0_mask(val);
591 		} else {
592 			if (pause->tx_pause)
593 				netxen_xg_unset_xg1_mask(val);
594 			else
595 				netxen_xg_set_xg1_mask(val);
596 		}
597 		NXWR32(adapter, NETXEN_NIU_XG_PAUSE_CTL, val);
598 	} else {
599 		printk(KERN_ERR "%s: Unknown board type: %x\n",
600 				netxen_nic_driver_name,
601 				adapter->ahw.port_type);
602 	}
603 	return 0;
604 }
605 
606 static int netxen_nic_reg_test(struct net_device *dev)
607 {
608 	struct netxen_adapter *adapter = netdev_priv(dev);
609 	u32 data_read, data_written;
610 
611 	data_read = NXRD32(adapter, NETXEN_PCIX_PH_REG(0));
612 	if ((data_read & 0xffff) != adapter->pdev->vendor)
613 		return 1;
614 
615 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
616 		return 0;
617 
618 	data_written = (u32)0xa5a5a5a5;
619 
620 	NXWR32(adapter, CRB_SCRATCHPAD_TEST, data_written);
621 	data_read = NXRD32(adapter, CRB_SCRATCHPAD_TEST);
622 	if (data_written != data_read)
623 		return 1;
624 
625 	return 0;
626 }
627 
628 static int netxen_get_sset_count(struct net_device *dev, int sset)
629 {
630 	switch (sset) {
631 	case ETH_SS_TEST:
632 		return NETXEN_NIC_TEST_LEN;
633 	case ETH_SS_STATS:
634 		return NETXEN_NIC_STATS_LEN;
635 	default:
636 		return -EOPNOTSUPP;
637 	}
638 }
639 
640 static void
641 netxen_nic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
642 		     u64 *data)
643 {
644 	memset(data, 0, sizeof(uint64_t) * NETXEN_NIC_TEST_LEN);
645 	if ((data[0] = netxen_nic_reg_test(dev)))
646 		eth_test->flags |= ETH_TEST_FL_FAILED;
647 	/* link test */
648 	if ((data[1] = (u64) netxen_nic_test_link(dev)))
649 		eth_test->flags |= ETH_TEST_FL_FAILED;
650 }
651 
652 static void
653 netxen_nic_get_strings(struct net_device *dev, u32 stringset, u8 *data)
654 {
655 	int index;
656 
657 	switch (stringset) {
658 	case ETH_SS_TEST:
659 		memcpy(data, *netxen_nic_gstrings_test,
660 		       NETXEN_NIC_TEST_LEN * ETH_GSTRING_LEN);
661 		break;
662 	case ETH_SS_STATS:
663 		for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
664 			memcpy(data + index * ETH_GSTRING_LEN,
665 			       netxen_nic_gstrings_stats[index].stat_string,
666 			       ETH_GSTRING_LEN);
667 		}
668 		break;
669 	}
670 }
671 
672 static void
673 netxen_nic_get_ethtool_stats(struct net_device *dev,
674 			     struct ethtool_stats *stats, u64 *data)
675 {
676 	struct netxen_adapter *adapter = netdev_priv(dev);
677 	int index;
678 
679 	for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
680 		char *p =
681 		    (char *)adapter +
682 		    netxen_nic_gstrings_stats[index].stat_offset;
683 		data[index] =
684 		    (netxen_nic_gstrings_stats[index].sizeof_stat ==
685 		     sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
686 	}
687 }
688 
689 static void
690 netxen_nic_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
691 {
692 	struct netxen_adapter *adapter = netdev_priv(dev);
693 	u32 wol_cfg = 0;
694 
695 	wol->supported = 0;
696 	wol->wolopts = 0;
697 
698 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
699 		return;
700 
701 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
702 	if (wol_cfg & (1UL << adapter->portnum))
703 		wol->supported |= WAKE_MAGIC;
704 
705 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
706 	if (wol_cfg & (1UL << adapter->portnum))
707 		wol->wolopts |= WAKE_MAGIC;
708 }
709 
710 static int
711 netxen_nic_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
712 {
713 	struct netxen_adapter *adapter = netdev_priv(dev);
714 	u32 wol_cfg = 0;
715 
716 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
717 		return -EOPNOTSUPP;
718 
719 	if (wol->wolopts & ~WAKE_MAGIC)
720 		return -EOPNOTSUPP;
721 
722 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
723 	if (!(wol_cfg & (1 << adapter->portnum)))
724 		return -EOPNOTSUPP;
725 
726 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
727 	if (wol->wolopts & WAKE_MAGIC)
728 		wol_cfg |= 1UL << adapter->portnum;
729 	else
730 		wol_cfg &= ~(1UL << adapter->portnum);
731 	NXWR32(adapter, NETXEN_WOL_CONFIG, wol_cfg);
732 
733 	return 0;
734 }
735 
736 /*
737  * Set the coalescing parameters. Currently only normal is supported.
738  * If rx_coalesce_usecs == 0 or rx_max_coalesced_frames == 0 then set the
739  * firmware coalescing to default.
740  */
741 static int netxen_set_intr_coalesce(struct net_device *netdev,
742 			struct ethtool_coalesce *ethcoal)
743 {
744 	struct netxen_adapter *adapter = netdev_priv(netdev);
745 
746 	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
747 		return -EINVAL;
748 
749 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
750 		return -EINVAL;
751 
752 	/*
753 	* Return Error if unsupported values or
754 	* unsupported parameters are set.
755 	*/
756 	if (ethcoal->rx_coalesce_usecs > 0xffff ||
757 		ethcoal->rx_max_coalesced_frames > 0xffff ||
758 		ethcoal->tx_coalesce_usecs > 0xffff ||
759 		ethcoal->tx_max_coalesced_frames > 0xffff ||
760 		ethcoal->rx_coalesce_usecs_irq ||
761 		ethcoal->rx_max_coalesced_frames_irq ||
762 		ethcoal->tx_coalesce_usecs_irq ||
763 		ethcoal->tx_max_coalesced_frames_irq ||
764 		ethcoal->stats_block_coalesce_usecs ||
765 		ethcoal->use_adaptive_rx_coalesce ||
766 		ethcoal->use_adaptive_tx_coalesce ||
767 		ethcoal->pkt_rate_low ||
768 		ethcoal->rx_coalesce_usecs_low ||
769 		ethcoal->rx_max_coalesced_frames_low ||
770 		ethcoal->tx_coalesce_usecs_low ||
771 		ethcoal->tx_max_coalesced_frames_low ||
772 		ethcoal->pkt_rate_high ||
773 		ethcoal->rx_coalesce_usecs_high ||
774 		ethcoal->rx_max_coalesced_frames_high ||
775 		ethcoal->tx_coalesce_usecs_high ||
776 		ethcoal->tx_max_coalesced_frames_high)
777 		return -EINVAL;
778 
779 	if (!ethcoal->rx_coalesce_usecs ||
780 		!ethcoal->rx_max_coalesced_frames) {
781 		adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
782 		adapter->coal.normal.data.rx_time_us =
783 			NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
784 		adapter->coal.normal.data.rx_packets =
785 			NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
786 	} else {
787 		adapter->coal.flags = 0;
788 		adapter->coal.normal.data.rx_time_us =
789 		ethcoal->rx_coalesce_usecs;
790 		adapter->coal.normal.data.rx_packets =
791 		ethcoal->rx_max_coalesced_frames;
792 	}
793 	adapter->coal.normal.data.tx_time_us = ethcoal->tx_coalesce_usecs;
794 	adapter->coal.normal.data.tx_packets =
795 	ethcoal->tx_max_coalesced_frames;
796 
797 	netxen_config_intr_coalesce(adapter);
798 
799 	return 0;
800 }
801 
802 static int netxen_get_intr_coalesce(struct net_device *netdev,
803 			struct ethtool_coalesce *ethcoal)
804 {
805 	struct netxen_adapter *adapter = netdev_priv(netdev);
806 
807 	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
808 		return -EINVAL;
809 
810 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
811 		return -EINVAL;
812 
813 	ethcoal->rx_coalesce_usecs = adapter->coal.normal.data.rx_time_us;
814 	ethcoal->tx_coalesce_usecs = adapter->coal.normal.data.tx_time_us;
815 	ethcoal->rx_max_coalesced_frames =
816 		adapter->coal.normal.data.rx_packets;
817 	ethcoal->tx_max_coalesced_frames =
818 		adapter->coal.normal.data.tx_packets;
819 
820 	return 0;
821 }
822 
823 static int
824 netxen_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
825 {
826 	struct netxen_adapter *adapter = netdev_priv(netdev);
827 	struct netxen_minidump *mdump = &adapter->mdump;
828 	if (adapter->fw_mdump_rdy)
829 		dump->len = mdump->md_dump_size;
830 	else
831 		dump->len = 0;
832 
833 	if (!mdump->md_enabled)
834 		dump->flag = ETH_FW_DUMP_DISABLE;
835 	else
836 		dump->flag = mdump->md_capture_mask;
837 
838 	dump->version = adapter->fw_version;
839 	return 0;
840 }
841 
842 static int
843 netxen_set_dump(struct net_device *netdev, struct ethtool_dump *val)
844 {
845 	int i;
846 	struct netxen_adapter *adapter = netdev_priv(netdev);
847 	struct netxen_minidump *mdump = &adapter->mdump;
848 
849 	switch (val->flag) {
850 	case NX_FORCE_FW_DUMP_KEY:
851 		if (!mdump->md_enabled) {
852 			netdev_info(netdev, "FW dump not enabled\n");
853 			return 0;
854 		}
855 		if (adapter->fw_mdump_rdy) {
856 			netdev_info(netdev, "Previous dump not cleared, not forcing dump\n");
857 			return 0;
858 		}
859 		netdev_info(netdev, "Forcing a fw dump\n");
860 		nx_dev_request_reset(adapter);
861 		break;
862 	case NX_DISABLE_FW_DUMP:
863 		if (mdump->md_enabled) {
864 			netdev_info(netdev, "Disabling FW Dump\n");
865 			mdump->md_enabled = 0;
866 		}
867 		break;
868 	case NX_ENABLE_FW_DUMP:
869 		if (!mdump->md_enabled) {
870 			netdev_info(netdev, "Enabling FW dump\n");
871 			mdump->md_enabled = 1;
872 		}
873 		break;
874 	case NX_FORCE_FW_RESET:
875 		netdev_info(netdev, "Forcing FW reset\n");
876 		nx_dev_request_reset(adapter);
877 		adapter->flags &= ~NETXEN_FW_RESET_OWNER;
878 		break;
879 	default:
880 		for (i = 0; i < ARRAY_SIZE(FW_DUMP_LEVELS); i++) {
881 			if (val->flag == FW_DUMP_LEVELS[i]) {
882 				mdump->md_capture_mask = val->flag;
883 				netdev_info(netdev,
884 					"Driver mask changed to: 0x%x\n",
885 					mdump->md_capture_mask);
886 				return 0;
887 			}
888 		}
889 		netdev_info(netdev,
890 			"Invalid dump level: 0x%x\n", val->flag);
891 		return -EINVAL;
892 	}
893 
894 	return 0;
895 }
896 
897 static int
898 netxen_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
899 			void *buffer)
900 {
901 	int i, copy_sz;
902 	u32 *hdr_ptr, *data;
903 	struct netxen_adapter *adapter = netdev_priv(netdev);
904 	struct netxen_minidump *mdump = &adapter->mdump;
905 
906 
907 	if (!adapter->fw_mdump_rdy) {
908 		netdev_info(netdev, "Dump not available\n");
909 		return -EINVAL;
910 	}
911 	/* Copy template header first */
912 	copy_sz = mdump->md_template_size;
913 	hdr_ptr = (u32 *) mdump->md_template;
914 	data = buffer;
915 	for (i = 0; i < copy_sz/sizeof(u32); i++)
916 		*data++ = cpu_to_le32(*hdr_ptr++);
917 
918 	/* Copy captured dump data */
919 	memcpy(buffer + copy_sz,
920 		mdump->md_capture_buff + mdump->md_template_size,
921 			mdump->md_capture_size);
922 	dump->len = copy_sz + mdump->md_capture_size;
923 	dump->flag = mdump->md_capture_mask;
924 
925 	/* Free dump area once data has been captured */
926 	vfree(mdump->md_capture_buff);
927 	mdump->md_capture_buff = NULL;
928 	adapter->fw_mdump_rdy = 0;
929 	netdev_info(netdev, "extracted the fw dump Successfully\n");
930 	return 0;
931 }
932 
933 const struct ethtool_ops netxen_nic_ethtool_ops = {
934 	.get_settings = netxen_nic_get_settings,
935 	.set_settings = netxen_nic_set_settings,
936 	.get_drvinfo = netxen_nic_get_drvinfo,
937 	.get_regs_len = netxen_nic_get_regs_len,
938 	.get_regs = netxen_nic_get_regs,
939 	.get_link = ethtool_op_get_link,
940 	.get_eeprom_len = netxen_nic_get_eeprom_len,
941 	.get_eeprom = netxen_nic_get_eeprom,
942 	.get_ringparam = netxen_nic_get_ringparam,
943 	.set_ringparam = netxen_nic_set_ringparam,
944 	.get_pauseparam = netxen_nic_get_pauseparam,
945 	.set_pauseparam = netxen_nic_set_pauseparam,
946 	.get_wol = netxen_nic_get_wol,
947 	.set_wol = netxen_nic_set_wol,
948 	.self_test = netxen_nic_diag_test,
949 	.get_strings = netxen_nic_get_strings,
950 	.get_ethtool_stats = netxen_nic_get_ethtool_stats,
951 	.get_sset_count = netxen_get_sset_count,
952 	.get_coalesce = netxen_get_intr_coalesce,
953 	.set_coalesce = netxen_set_intr_coalesce,
954 	.get_dump_flag = netxen_get_dump_flag,
955 	.get_dump_data = netxen_get_dump_data,
956 	.set_dump = netxen_set_dump,
957 };
958