1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (C) 2003 - 2009 NetXen, Inc.
4  * Copyright (C) 2009 - QLogic Corporation.
5  * All rights reserved.
6  */
7 
8 #include <linux/types.h>
9 #include <linux/delay.h>
10 #include <linux/pci.h>
11 #include <asm/io.h>
12 #include <linux/netdevice.h>
13 #include <linux/ethtool.h>
14 
15 #include "netxen_nic.h"
16 #include "netxen_nic_hw.h"
17 
18 struct netxen_nic_stats {
19 	char stat_string[ETH_GSTRING_LEN];
20 	int sizeof_stat;
21 	int stat_offset;
22 };
23 
24 #define NETXEN_NIC_STAT(m) sizeof(((struct netxen_adapter *)0)->m), \
25 			offsetof(struct netxen_adapter, m)
26 
27 #define NETXEN_NIC_PORT_WINDOW 0x10000
28 #define NETXEN_NIC_INVALID_DATA 0xDEADBEEF
29 
30 static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
31 	{"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
32 	{"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
33 	{"rx_dropped", NETXEN_NIC_STAT(stats.rxdropped)},
34 	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
35 	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
36 	{"rx_pkts", NETXEN_NIC_STAT(stats.rx_pkts)},
37 	{"lro_pkts", NETXEN_NIC_STAT(stats.lro_pkts)},
38 	{"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
39 	{"tx_bytes", NETXEN_NIC_STAT(stats.txbytes)},
40 };
41 
42 #define NETXEN_NIC_STATS_LEN	ARRAY_SIZE(netxen_nic_gstrings_stats)
43 
44 static const char netxen_nic_gstrings_test[][ETH_GSTRING_LEN] = {
45 	"Register_Test_on_offline",
46 	"Link_Test_on_offline"
47 };
48 
49 #define NETXEN_NIC_TEST_LEN	ARRAY_SIZE(netxen_nic_gstrings_test)
50 
51 #define NETXEN_NIC_REGS_COUNT 30
52 #define NETXEN_NIC_REGS_LEN (NETXEN_NIC_REGS_COUNT * sizeof(__le32))
53 #define NETXEN_MAX_EEPROM_LEN   1024
54 
netxen_nic_get_eeprom_len(struct net_device * dev)55 static int netxen_nic_get_eeprom_len(struct net_device *dev)
56 {
57 	return NETXEN_FLASH_TOTAL_SIZE;
58 }
59 
60 static void
netxen_nic_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)61 netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
62 {
63 	struct netxen_adapter *adapter = netdev_priv(dev);
64 	u32 fw_major = 0;
65 	u32 fw_minor = 0;
66 	u32 fw_build = 0;
67 
68 	strscpy(drvinfo->driver, netxen_nic_driver_name,
69 		sizeof(drvinfo->driver));
70 	strscpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID,
71 		sizeof(drvinfo->version));
72 	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
73 	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
74 	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
75 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
76 		"%d.%d.%d", fw_major, fw_minor, fw_build);
77 
78 	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
79 		sizeof(drvinfo->bus_info));
80 }
81 
82 static int
netxen_nic_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * cmd)83 netxen_nic_get_link_ksettings(struct net_device *dev,
84 			      struct ethtool_link_ksettings *cmd)
85 {
86 	struct netxen_adapter *adapter = netdev_priv(dev);
87 	int check_sfp_module = 0;
88 	u32 supported, advertising;
89 
90 	/* read which mode */
91 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
92 		supported = (SUPPORTED_10baseT_Half |
93 				   SUPPORTED_10baseT_Full |
94 				   SUPPORTED_100baseT_Half |
95 				   SUPPORTED_100baseT_Full |
96 				   SUPPORTED_1000baseT_Half |
97 				   SUPPORTED_1000baseT_Full);
98 
99 		advertising = (ADVERTISED_100baseT_Half |
100 				     ADVERTISED_100baseT_Full |
101 				     ADVERTISED_1000baseT_Half |
102 				     ADVERTISED_1000baseT_Full);
103 
104 		cmd->base.port = PORT_TP;
105 
106 		cmd->base.speed = adapter->link_speed;
107 		cmd->base.duplex = adapter->link_duplex;
108 		cmd->base.autoneg = adapter->link_autoneg;
109 
110 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
111 		u32 val;
112 
113 		val = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
114 		if (val == NETXEN_PORT_MODE_802_3_AP) {
115 			supported = SUPPORTED_1000baseT_Full;
116 			advertising = ADVERTISED_1000baseT_Full;
117 		} else {
118 			supported = SUPPORTED_10000baseT_Full;
119 			advertising = ADVERTISED_10000baseT_Full;
120 		}
121 
122 		if (netif_running(dev) && adapter->has_link_events) {
123 			cmd->base.speed = adapter->link_speed;
124 			cmd->base.autoneg = adapter->link_autoneg;
125 			cmd->base.duplex = adapter->link_duplex;
126 			goto skip;
127 		}
128 
129 		cmd->base.port = PORT_TP;
130 
131 		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
132 			u16 pcifn = adapter->ahw.pci_func;
133 
134 			val = NXRD32(adapter, P3_LINK_SPEED_REG(pcifn));
135 			cmd->base.speed = P3_LINK_SPEED_MHZ *
136 				P3_LINK_SPEED_VAL(pcifn, val);
137 		} else
138 			cmd->base.speed = SPEED_10000;
139 
140 		cmd->base.duplex = DUPLEX_FULL;
141 		cmd->base.autoneg = AUTONEG_DISABLE;
142 	} else
143 		return -EIO;
144 
145 skip:
146 	cmd->base.phy_address = adapter->physical_port;
147 
148 	switch (adapter->ahw.board_type) {
149 	case NETXEN_BRDTYPE_P2_SB35_4G:
150 	case NETXEN_BRDTYPE_P2_SB31_2G:
151 	case NETXEN_BRDTYPE_P3_REF_QG:
152 	case NETXEN_BRDTYPE_P3_4_GB:
153 	case NETXEN_BRDTYPE_P3_4_GB_MM:
154 		supported |= SUPPORTED_Autoneg;
155 		advertising |= ADVERTISED_Autoneg;
156 		fallthrough;
157 	case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
158 	case NETXEN_BRDTYPE_P3_10G_CX4:
159 	case NETXEN_BRDTYPE_P3_10G_CX4_LP:
160 	case NETXEN_BRDTYPE_P3_10000_BASE_T:
161 		supported |= SUPPORTED_TP;
162 		advertising |= ADVERTISED_TP;
163 		cmd->base.port = PORT_TP;
164 		cmd->base.autoneg = (adapter->ahw.board_type ==
165 				 NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
166 		    (AUTONEG_DISABLE) : (adapter->link_autoneg);
167 		break;
168 	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
169 	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
170 	case NETXEN_BRDTYPE_P3_IMEZ:
171 	case NETXEN_BRDTYPE_P3_XG_LOM:
172 	case NETXEN_BRDTYPE_P3_HMEZ:
173 		supported |= SUPPORTED_MII;
174 		advertising |= ADVERTISED_MII;
175 		cmd->base.port = PORT_MII;
176 		cmd->base.autoneg = AUTONEG_DISABLE;
177 		break;
178 	case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
179 	case NETXEN_BRDTYPE_P3_10G_SFP_CT:
180 	case NETXEN_BRDTYPE_P3_10G_SFP_QT:
181 		advertising |= ADVERTISED_TP;
182 		supported |= SUPPORTED_TP;
183 		check_sfp_module = netif_running(dev) &&
184 			adapter->has_link_events;
185 		fallthrough;
186 	case NETXEN_BRDTYPE_P2_SB31_10G:
187 	case NETXEN_BRDTYPE_P3_10G_XFP:
188 		supported |= SUPPORTED_FIBRE;
189 		advertising |= ADVERTISED_FIBRE;
190 		cmd->base.port = PORT_FIBRE;
191 		cmd->base.autoneg = AUTONEG_DISABLE;
192 		break;
193 	case NETXEN_BRDTYPE_P3_10G_TP:
194 		if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
195 			cmd->base.autoneg = AUTONEG_DISABLE;
196 			supported |= (SUPPORTED_FIBRE | SUPPORTED_TP);
197 			advertising |=
198 				(ADVERTISED_FIBRE | ADVERTISED_TP);
199 			cmd->base.port = PORT_FIBRE;
200 			check_sfp_module = netif_running(dev) &&
201 				adapter->has_link_events;
202 		} else {
203 			supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
204 			advertising |=
205 				(ADVERTISED_TP | ADVERTISED_Autoneg);
206 			cmd->base.port = PORT_TP;
207 		}
208 		break;
209 	default:
210 		printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
211 				adapter->ahw.board_type);
212 		return -EIO;
213 	}
214 
215 	if (check_sfp_module) {
216 		switch (adapter->module_type) {
217 		case LINKEVENT_MODULE_OPTICAL_UNKNOWN:
218 		case LINKEVENT_MODULE_OPTICAL_SRLR:
219 		case LINKEVENT_MODULE_OPTICAL_LRM:
220 		case LINKEVENT_MODULE_OPTICAL_SFP_1G:
221 			cmd->base.port = PORT_FIBRE;
222 			break;
223 		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE:
224 		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN:
225 		case LINKEVENT_MODULE_TWINAX:
226 			cmd->base.port = PORT_TP;
227 			break;
228 		default:
229 			cmd->base.port = -1;
230 		}
231 	}
232 
233 	if (!netif_running(dev) || !adapter->ahw.linkup) {
234 		cmd->base.duplex = DUPLEX_UNKNOWN;
235 		cmd->base.speed = SPEED_UNKNOWN;
236 	}
237 
238 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
239 						supported);
240 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
241 						advertising);
242 
243 	return 0;
244 }
245 
246 static int
netxen_nic_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * cmd)247 netxen_nic_set_link_ksettings(struct net_device *dev,
248 			      const struct ethtool_link_ksettings *cmd)
249 {
250 	struct netxen_adapter *adapter = netdev_priv(dev);
251 	u32 speed = cmd->base.speed;
252 	int ret;
253 
254 	if (adapter->ahw.port_type != NETXEN_NIC_GBE)
255 		return -EOPNOTSUPP;
256 
257 	if (!(adapter->capabilities & NX_FW_CAPABILITY_GBE_LINK_CFG))
258 		return -EOPNOTSUPP;
259 
260 	ret = nx_fw_cmd_set_gbe_port(adapter, speed, cmd->base.duplex,
261 				     cmd->base.autoneg);
262 	if (ret == NX_RCODE_NOT_SUPPORTED)
263 		return -EOPNOTSUPP;
264 	else if (ret)
265 		return -EIO;
266 
267 	adapter->link_speed = speed;
268 	adapter->link_duplex = cmd->base.duplex;
269 	adapter->link_autoneg = cmd->base.autoneg;
270 
271 	if (!netif_running(dev))
272 		return 0;
273 
274 	dev->netdev_ops->ndo_stop(dev);
275 	return dev->netdev_ops->ndo_open(dev);
276 }
277 
netxen_nic_get_regs_len(struct net_device * dev)278 static int netxen_nic_get_regs_len(struct net_device *dev)
279 {
280 	return NETXEN_NIC_REGS_LEN;
281 }
282 
283 static void
netxen_nic_get_regs(struct net_device * dev,struct ethtool_regs * regs,void * p)284 netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
285 {
286 	struct netxen_adapter *adapter = netdev_priv(dev);
287 	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
288 	struct nx_host_sds_ring *sds_ring;
289 	u32 *regs_buff = p;
290 	int ring, i = 0;
291 	int port = adapter->physical_port;
292 
293 	memset(p, 0, NETXEN_NIC_REGS_LEN);
294 
295 	regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
296 	    (adapter->pdev)->device;
297 
298 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
299 		return;
300 
301 	regs_buff[i++] = NXRD32(adapter, CRB_CMDPEG_STATE);
302 	regs_buff[i++] = NXRD32(adapter, CRB_RCVPEG_STATE);
303 	regs_buff[i++] = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
304 	regs_buff[i++] = NXRDIO(adapter, adapter->crb_int_state_reg);
305 	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
306 	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_STATE);
307 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
308 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
309 	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS2);
310 
311 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_0+0x3c);
312 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_1+0x3c);
313 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_2+0x3c);
314 	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_3+0x3c);
315 
316 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
317 
318 		regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_4+0x3c);
319 		i += 2;
320 
321 		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE_P3);
322 		regs_buff[i++] = le32_to_cpu(*(adapter->tx_ring->hw_consumer));
323 
324 	} else {
325 		i++;
326 
327 		regs_buff[i++] = NXRD32(adapter,
328 					NETXEN_NIU_XGE_CONFIG_0+(0x10000*port));
329 		regs_buff[i++] = NXRD32(adapter,
330 					NETXEN_NIU_XGE_CONFIG_1+(0x10000*port));
331 
332 		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE);
333 		regs_buff[i++] = NXRDIO(adapter,
334 				 adapter->tx_ring->crb_cmd_consumer);
335 	}
336 
337 	regs_buff[i++] = NXRDIO(adapter, adapter->tx_ring->crb_cmd_producer);
338 
339 	regs_buff[i++] = NXRDIO(adapter,
340 			 recv_ctx->rds_rings[0].crb_rcv_producer);
341 	regs_buff[i++] = NXRDIO(adapter,
342 			 recv_ctx->rds_rings[1].crb_rcv_producer);
343 
344 	regs_buff[i++] = adapter->max_sds_rings;
345 
346 	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
347 		sds_ring = &(recv_ctx->sds_rings[ring]);
348 		regs_buff[i++] = NXRDIO(adapter,
349 					sds_ring->crb_sts_consumer);
350 	}
351 }
352 
netxen_nic_test_link(struct net_device * dev)353 static u32 netxen_nic_test_link(struct net_device *dev)
354 {
355 	struct netxen_adapter *adapter = netdev_priv(dev);
356 	u32 val, port;
357 
358 	port = adapter->physical_port;
359 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
360 		val = NXRD32(adapter, CRB_XG_STATE_P3);
361 		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
362 		return (val == XG_LINK_UP_P3) ? 0 : 1;
363 	} else {
364 		val = NXRD32(adapter, CRB_XG_STATE);
365 		val = (val >> port*8) & 0xff;
366 		return (val == XG_LINK_UP) ? 0 : 1;
367 	}
368 }
369 
370 static int
netxen_nic_get_eeprom(struct net_device * dev,struct ethtool_eeprom * eeprom,u8 * bytes)371 netxen_nic_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
372 		      u8 *bytes)
373 {
374 	struct netxen_adapter *adapter = netdev_priv(dev);
375 	int offset;
376 	int ret;
377 
378 	if (eeprom->len == 0)
379 		return -EINVAL;
380 
381 	eeprom->magic = (adapter->pdev)->vendor |
382 			((adapter->pdev)->device << 16);
383 	offset = eeprom->offset;
384 
385 	ret = netxen_rom_fast_read_words(adapter, offset, bytes,
386 						eeprom->len);
387 	if (ret < 0)
388 		return ret;
389 
390 	return 0;
391 }
392 
393 static void
netxen_nic_get_ringparam(struct net_device * dev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)394 netxen_nic_get_ringparam(struct net_device *dev,
395 			 struct ethtool_ringparam *ring,
396 			 struct kernel_ethtool_ringparam *kernel_ring,
397 			 struct netlink_ext_ack *extack)
398 {
399 	struct netxen_adapter *adapter = netdev_priv(dev);
400 
401 	ring->rx_pending = adapter->num_rxd;
402 	ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
403 	ring->rx_jumbo_pending += adapter->num_lro_rxd;
404 	ring->tx_pending = adapter->num_txd;
405 
406 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
407 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
408 		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
409 	} else {
410 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
411 		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
412 	}
413 
414 	ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
415 }
416 
417 static u32
netxen_validate_ringparam(u32 val,u32 min,u32 max,char * r_name)418 netxen_validate_ringparam(u32 val, u32 min, u32 max, char *r_name)
419 {
420 	u32 num_desc;
421 	num_desc = max(val, min);
422 	num_desc = min(num_desc, max);
423 	num_desc = roundup_pow_of_two(num_desc);
424 
425 	if (val != num_desc) {
426 		printk(KERN_INFO "%s: setting %s ring size %d instead of %d\n",
427 		       netxen_nic_driver_name, r_name, num_desc, val);
428 	}
429 
430 	return num_desc;
431 }
432 
433 static int
netxen_nic_set_ringparam(struct net_device * dev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)434 netxen_nic_set_ringparam(struct net_device *dev,
435 			 struct ethtool_ringparam *ring,
436 			 struct kernel_ethtool_ringparam *kernel_ring,
437 			 struct netlink_ext_ack *extack)
438 {
439 	struct netxen_adapter *adapter = netdev_priv(dev);
440 	u16 max_rcv_desc = MAX_RCV_DESCRIPTORS_10G;
441 	u16 max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
442 	u16 num_rxd, num_jumbo_rxd, num_txd;
443 
444 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
445 		return -EOPNOTSUPP;
446 
447 	if (ring->rx_mini_pending)
448 		return -EOPNOTSUPP;
449 
450 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
451 		max_rcv_desc = MAX_RCV_DESCRIPTORS_1G;
452 		max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
453 	}
454 
455 	num_rxd = netxen_validate_ringparam(ring->rx_pending,
456 			MIN_RCV_DESCRIPTORS, max_rcv_desc, "rx");
457 
458 	num_jumbo_rxd = netxen_validate_ringparam(ring->rx_jumbo_pending,
459 			MIN_JUMBO_DESCRIPTORS, max_jumbo_desc, "rx jumbo");
460 
461 	num_txd = netxen_validate_ringparam(ring->tx_pending,
462 			MIN_CMD_DESCRIPTORS, MAX_CMD_DESCRIPTORS, "tx");
463 
464 	if (num_rxd == adapter->num_rxd && num_txd == adapter->num_txd &&
465 			num_jumbo_rxd == adapter->num_jumbo_rxd)
466 		return 0;
467 
468 	adapter->num_rxd = num_rxd;
469 	adapter->num_jumbo_rxd = num_jumbo_rxd;
470 	adapter->num_txd = num_txd;
471 
472 	return netxen_nic_reset_context(adapter);
473 }
474 
475 static void
netxen_nic_get_pauseparam(struct net_device * dev,struct ethtool_pauseparam * pause)476 netxen_nic_get_pauseparam(struct net_device *dev,
477 			  struct ethtool_pauseparam *pause)
478 {
479 	struct netxen_adapter *adapter = netdev_priv(dev);
480 	__u32 val;
481 	int port = adapter->physical_port;
482 
483 	pause->autoneg = 0;
484 
485 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
486 		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
487 			return;
488 		/* get flow control settings */
489 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
490 		pause->rx_pause = netxen_gb_get_rx_flowctl(val);
491 		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
492 		switch (port) {
493 		case 0:
494 			pause->tx_pause = !(netxen_gb_get_gb0_mask(val));
495 			break;
496 		case 1:
497 			pause->tx_pause = !(netxen_gb_get_gb1_mask(val));
498 			break;
499 		case 2:
500 			pause->tx_pause = !(netxen_gb_get_gb2_mask(val));
501 			break;
502 		case 3:
503 		default:
504 			pause->tx_pause = !(netxen_gb_get_gb3_mask(val));
505 			break;
506 		}
507 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
508 		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
509 			return;
510 		pause->rx_pause = 1;
511 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
512 		if (port == 0)
513 			pause->tx_pause = !(netxen_xg_get_xg0_mask(val));
514 		else
515 			pause->tx_pause = !(netxen_xg_get_xg1_mask(val));
516 	} else {
517 		printk(KERN_ERR"%s: Unknown board type: %x\n",
518 				netxen_nic_driver_name, adapter->ahw.port_type);
519 	}
520 }
521 
522 static int
netxen_nic_set_pauseparam(struct net_device * dev,struct ethtool_pauseparam * pause)523 netxen_nic_set_pauseparam(struct net_device *dev,
524 			  struct ethtool_pauseparam *pause)
525 {
526 	struct netxen_adapter *adapter = netdev_priv(dev);
527 	__u32 val;
528 	int port = adapter->physical_port;
529 
530 	/* not supported */
531 	if (pause->autoneg)
532 		return -EINVAL;
533 
534 	/* read mode */
535 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
536 		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
537 			return -EIO;
538 		/* set flow control */
539 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
540 
541 		if (pause->rx_pause)
542 			netxen_gb_rx_flowctl(val);
543 		else
544 			netxen_gb_unset_rx_flowctl(val);
545 
546 		NXWR32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
547 				val);
548 		/* set autoneg */
549 		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
550 		switch (port) {
551 		case 0:
552 			if (pause->tx_pause)
553 				netxen_gb_unset_gb0_mask(val);
554 			else
555 				netxen_gb_set_gb0_mask(val);
556 			break;
557 		case 1:
558 			if (pause->tx_pause)
559 				netxen_gb_unset_gb1_mask(val);
560 			else
561 				netxen_gb_set_gb1_mask(val);
562 			break;
563 		case 2:
564 			if (pause->tx_pause)
565 				netxen_gb_unset_gb2_mask(val);
566 			else
567 				netxen_gb_set_gb2_mask(val);
568 			break;
569 		case 3:
570 		default:
571 			if (pause->tx_pause)
572 				netxen_gb_unset_gb3_mask(val);
573 			else
574 				netxen_gb_set_gb3_mask(val);
575 			break;
576 		}
577 		NXWR32(adapter, NETXEN_NIU_GB_PAUSE_CTL, val);
578 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
579 		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
580 			return -EIO;
581 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
582 		if (port == 0) {
583 			if (pause->tx_pause)
584 				netxen_xg_unset_xg0_mask(val);
585 			else
586 				netxen_xg_set_xg0_mask(val);
587 		} else {
588 			if (pause->tx_pause)
589 				netxen_xg_unset_xg1_mask(val);
590 			else
591 				netxen_xg_set_xg1_mask(val);
592 		}
593 		NXWR32(adapter, NETXEN_NIU_XG_PAUSE_CTL, val);
594 	} else {
595 		printk(KERN_ERR "%s: Unknown board type: %x\n",
596 				netxen_nic_driver_name,
597 				adapter->ahw.port_type);
598 	}
599 	return 0;
600 }
601 
netxen_nic_reg_test(struct net_device * dev)602 static int netxen_nic_reg_test(struct net_device *dev)
603 {
604 	struct netxen_adapter *adapter = netdev_priv(dev);
605 	u32 data_read, data_written;
606 
607 	data_read = NXRD32(adapter, NETXEN_PCIX_PH_REG(0));
608 	if ((data_read & 0xffff) != adapter->pdev->vendor)
609 		return 1;
610 
611 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
612 		return 0;
613 
614 	data_written = (u32)0xa5a5a5a5;
615 
616 	NXWR32(adapter, CRB_SCRATCHPAD_TEST, data_written);
617 	data_read = NXRD32(adapter, CRB_SCRATCHPAD_TEST);
618 	if (data_written != data_read)
619 		return 1;
620 
621 	return 0;
622 }
623 
netxen_get_sset_count(struct net_device * dev,int sset)624 static int netxen_get_sset_count(struct net_device *dev, int sset)
625 {
626 	switch (sset) {
627 	case ETH_SS_TEST:
628 		return NETXEN_NIC_TEST_LEN;
629 	case ETH_SS_STATS:
630 		return NETXEN_NIC_STATS_LEN;
631 	default:
632 		return -EOPNOTSUPP;
633 	}
634 }
635 
636 static void
netxen_nic_diag_test(struct net_device * dev,struct ethtool_test * eth_test,u64 * data)637 netxen_nic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
638 		     u64 *data)
639 {
640 	memset(data, 0, sizeof(uint64_t) * NETXEN_NIC_TEST_LEN);
641 	if ((data[0] = netxen_nic_reg_test(dev)))
642 		eth_test->flags |= ETH_TEST_FL_FAILED;
643 	/* link test */
644 	if ((data[1] = (u64) netxen_nic_test_link(dev)))
645 		eth_test->flags |= ETH_TEST_FL_FAILED;
646 }
647 
648 static void
netxen_nic_get_strings(struct net_device * dev,u32 stringset,u8 * data)649 netxen_nic_get_strings(struct net_device *dev, u32 stringset, u8 *data)
650 {
651 	int index;
652 
653 	switch (stringset) {
654 	case ETH_SS_TEST:
655 		memcpy(data, *netxen_nic_gstrings_test,
656 		       NETXEN_NIC_TEST_LEN * ETH_GSTRING_LEN);
657 		break;
658 	case ETH_SS_STATS:
659 		for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
660 			memcpy(data + index * ETH_GSTRING_LEN,
661 			       netxen_nic_gstrings_stats[index].stat_string,
662 			       ETH_GSTRING_LEN);
663 		}
664 		break;
665 	}
666 }
667 
668 static void
netxen_nic_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)669 netxen_nic_get_ethtool_stats(struct net_device *dev,
670 			     struct ethtool_stats *stats, u64 *data)
671 {
672 	struct netxen_adapter *adapter = netdev_priv(dev);
673 	int index;
674 
675 	for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
676 		char *p =
677 		    (char *)adapter +
678 		    netxen_nic_gstrings_stats[index].stat_offset;
679 		data[index] =
680 		    (netxen_nic_gstrings_stats[index].sizeof_stat ==
681 		     sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
682 	}
683 }
684 
685 static void
netxen_nic_get_wol(struct net_device * dev,struct ethtool_wolinfo * wol)686 netxen_nic_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
687 {
688 	struct netxen_adapter *adapter = netdev_priv(dev);
689 	u32 wol_cfg = 0;
690 
691 	wol->supported = 0;
692 	wol->wolopts = 0;
693 
694 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
695 		return;
696 
697 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
698 	if (wol_cfg & (1UL << adapter->portnum))
699 		wol->supported |= WAKE_MAGIC;
700 
701 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
702 	if (wol_cfg & (1UL << adapter->portnum))
703 		wol->wolopts |= WAKE_MAGIC;
704 }
705 
706 static int
netxen_nic_set_wol(struct net_device * dev,struct ethtool_wolinfo * wol)707 netxen_nic_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
708 {
709 	struct netxen_adapter *adapter = netdev_priv(dev);
710 	u32 wol_cfg = 0;
711 
712 	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
713 		return -EOPNOTSUPP;
714 
715 	if (wol->wolopts & ~WAKE_MAGIC)
716 		return -EOPNOTSUPP;
717 
718 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
719 	if (!(wol_cfg & (1 << adapter->portnum)))
720 		return -EOPNOTSUPP;
721 
722 	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
723 	if (wol->wolopts & WAKE_MAGIC)
724 		wol_cfg |= 1UL << adapter->portnum;
725 	else
726 		wol_cfg &= ~(1UL << adapter->portnum);
727 	NXWR32(adapter, NETXEN_WOL_CONFIG, wol_cfg);
728 
729 	return 0;
730 }
731 
732 /*
733  * Set the coalescing parameters. Currently only normal is supported.
734  * If rx_coalesce_usecs == 0 or rx_max_coalesced_frames == 0 then set the
735  * firmware coalescing to default.
736  */
netxen_set_intr_coalesce(struct net_device * netdev,struct ethtool_coalesce * ethcoal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)737 static int netxen_set_intr_coalesce(struct net_device *netdev,
738 				    struct ethtool_coalesce *ethcoal,
739 				    struct kernel_ethtool_coalesce *kernel_coal,
740 				    struct netlink_ext_ack *extack)
741 {
742 	struct netxen_adapter *adapter = netdev_priv(netdev);
743 
744 	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
745 		return -EINVAL;
746 
747 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
748 		return -EINVAL;
749 
750 	/*
751 	* Return Error if unsupported values or
752 	* unsupported parameters are set.
753 	*/
754 	if (ethcoal->rx_coalesce_usecs > 0xffff ||
755 		ethcoal->rx_max_coalesced_frames > 0xffff ||
756 		ethcoal->tx_coalesce_usecs > 0xffff ||
757 		ethcoal->tx_max_coalesced_frames > 0xffff)
758 		return -EINVAL;
759 
760 	if (!ethcoal->rx_coalesce_usecs ||
761 		!ethcoal->rx_max_coalesced_frames) {
762 		adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
763 		adapter->coal.normal.data.rx_time_us =
764 			NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
765 		adapter->coal.normal.data.rx_packets =
766 			NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
767 	} else {
768 		adapter->coal.flags = 0;
769 		adapter->coal.normal.data.rx_time_us =
770 		ethcoal->rx_coalesce_usecs;
771 		adapter->coal.normal.data.rx_packets =
772 		ethcoal->rx_max_coalesced_frames;
773 	}
774 	adapter->coal.normal.data.tx_time_us = ethcoal->tx_coalesce_usecs;
775 	adapter->coal.normal.data.tx_packets =
776 	ethcoal->tx_max_coalesced_frames;
777 
778 	netxen_config_intr_coalesce(adapter);
779 
780 	return 0;
781 }
782 
netxen_get_intr_coalesce(struct net_device * netdev,struct ethtool_coalesce * ethcoal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)783 static int netxen_get_intr_coalesce(struct net_device *netdev,
784 				    struct ethtool_coalesce *ethcoal,
785 				    struct kernel_ethtool_coalesce *kernel_coal,
786 				    struct netlink_ext_ack *extack)
787 {
788 	struct netxen_adapter *adapter = netdev_priv(netdev);
789 
790 	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
791 		return -EINVAL;
792 
793 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
794 		return -EINVAL;
795 
796 	ethcoal->rx_coalesce_usecs = adapter->coal.normal.data.rx_time_us;
797 	ethcoal->tx_coalesce_usecs = adapter->coal.normal.data.tx_time_us;
798 	ethcoal->rx_max_coalesced_frames =
799 		adapter->coal.normal.data.rx_packets;
800 	ethcoal->tx_max_coalesced_frames =
801 		adapter->coal.normal.data.tx_packets;
802 
803 	return 0;
804 }
805 
806 static int
netxen_get_dump_flag(struct net_device * netdev,struct ethtool_dump * dump)807 netxen_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
808 {
809 	struct netxen_adapter *adapter = netdev_priv(netdev);
810 	struct netxen_minidump *mdump = &adapter->mdump;
811 	if (adapter->fw_mdump_rdy)
812 		dump->len = mdump->md_dump_size;
813 	else
814 		dump->len = 0;
815 
816 	if (!mdump->md_enabled)
817 		dump->flag = ETH_FW_DUMP_DISABLE;
818 	else
819 		dump->flag = mdump->md_capture_mask;
820 
821 	dump->version = adapter->fw_version;
822 	return 0;
823 }
824 
825 /* Fw dump levels */
826 static const u32 FW_DUMP_LEVELS[] = { 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff };
827 
828 static int
netxen_set_dump(struct net_device * netdev,struct ethtool_dump * val)829 netxen_set_dump(struct net_device *netdev, struct ethtool_dump *val)
830 {
831 	int i;
832 	struct netxen_adapter *adapter = netdev_priv(netdev);
833 	struct netxen_minidump *mdump = &adapter->mdump;
834 
835 	switch (val->flag) {
836 	case NX_FORCE_FW_DUMP_KEY:
837 		if (!mdump->md_enabled) {
838 			netdev_info(netdev, "FW dump not enabled\n");
839 			return 0;
840 		}
841 		if (adapter->fw_mdump_rdy) {
842 			netdev_info(netdev, "Previous dump not cleared, not forcing dump\n");
843 			return 0;
844 		}
845 		netdev_info(netdev, "Forcing a fw dump\n");
846 		nx_dev_request_reset(adapter);
847 		break;
848 	case NX_DISABLE_FW_DUMP:
849 		if (mdump->md_enabled) {
850 			netdev_info(netdev, "Disabling FW Dump\n");
851 			mdump->md_enabled = 0;
852 		}
853 		break;
854 	case NX_ENABLE_FW_DUMP:
855 		if (!mdump->md_enabled) {
856 			netdev_info(netdev, "Enabling FW dump\n");
857 			mdump->md_enabled = 1;
858 		}
859 		break;
860 	case NX_FORCE_FW_RESET:
861 		netdev_info(netdev, "Forcing FW reset\n");
862 		nx_dev_request_reset(adapter);
863 		adapter->flags &= ~NETXEN_FW_RESET_OWNER;
864 		break;
865 	default:
866 		for (i = 0; i < ARRAY_SIZE(FW_DUMP_LEVELS); i++) {
867 			if (val->flag == FW_DUMP_LEVELS[i]) {
868 				mdump->md_capture_mask = val->flag;
869 				netdev_info(netdev,
870 					"Driver mask changed to: 0x%x\n",
871 					mdump->md_capture_mask);
872 				return 0;
873 			}
874 		}
875 		netdev_info(netdev,
876 			"Invalid dump level: 0x%x\n", val->flag);
877 		return -EINVAL;
878 	}
879 
880 	return 0;
881 }
882 
883 static int
netxen_get_dump_data(struct net_device * netdev,struct ethtool_dump * dump,void * buffer)884 netxen_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
885 			void *buffer)
886 {
887 	int i, copy_sz;
888 	u32 *hdr_ptr, *data;
889 	struct netxen_adapter *adapter = netdev_priv(netdev);
890 	struct netxen_minidump *mdump = &adapter->mdump;
891 
892 
893 	if (!adapter->fw_mdump_rdy) {
894 		netdev_info(netdev, "Dump not available\n");
895 		return -EINVAL;
896 	}
897 	/* Copy template header first */
898 	copy_sz = mdump->md_template_size;
899 	hdr_ptr = (u32 *) mdump->md_template;
900 	data = buffer;
901 	for (i = 0; i < copy_sz/sizeof(u32); i++)
902 		*data++ = cpu_to_le32(*hdr_ptr++);
903 
904 	/* Copy captured dump data */
905 	memcpy(buffer + copy_sz,
906 		mdump->md_capture_buff + mdump->md_template_size,
907 			mdump->md_capture_size);
908 	dump->len = copy_sz + mdump->md_capture_size;
909 	dump->flag = mdump->md_capture_mask;
910 
911 	/* Free dump area once data has been captured */
912 	vfree(mdump->md_capture_buff);
913 	mdump->md_capture_buff = NULL;
914 	adapter->fw_mdump_rdy = 0;
915 	netdev_info(netdev, "extracted the fw dump Successfully\n");
916 	return 0;
917 }
918 
919 const struct ethtool_ops netxen_nic_ethtool_ops = {
920 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
921 				     ETHTOOL_COALESCE_MAX_FRAMES,
922 	.get_drvinfo = netxen_nic_get_drvinfo,
923 	.get_regs_len = netxen_nic_get_regs_len,
924 	.get_regs = netxen_nic_get_regs,
925 	.get_link = ethtool_op_get_link,
926 	.get_eeprom_len = netxen_nic_get_eeprom_len,
927 	.get_eeprom = netxen_nic_get_eeprom,
928 	.get_ringparam = netxen_nic_get_ringparam,
929 	.set_ringparam = netxen_nic_set_ringparam,
930 	.get_pauseparam = netxen_nic_get_pauseparam,
931 	.set_pauseparam = netxen_nic_set_pauseparam,
932 	.get_wol = netxen_nic_get_wol,
933 	.set_wol = netxen_nic_set_wol,
934 	.self_test = netxen_nic_diag_test,
935 	.get_strings = netxen_nic_get_strings,
936 	.get_ethtool_stats = netxen_nic_get_ethtool_stats,
937 	.get_sset_count = netxen_get_sset_count,
938 	.get_coalesce = netxen_get_intr_coalesce,
939 	.set_coalesce = netxen_set_intr_coalesce,
940 	.get_dump_flag = netxen_get_dump_flag,
941 	.get_dump_data = netxen_get_dump_data,
942 	.set_dump = netxen_set_dump,
943 	.get_link_ksettings = netxen_nic_get_link_ksettings,
944 	.set_link_ksettings = netxen_nic_set_link_ksettings,
945 };
946