xref: /linux/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c (revision 8934827db5403eae57d4537114a9ff88b0a8460f)
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2024 Intel Corporation. */
3 
4 /* ethtool support for ixgbe */
5 
6 #include <linux/interrupt.h>
7 #include <linux/types.h>
8 #include <linux/module.h>
9 #include <linux/slab.h>
10 #include <linux/pci.h>
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/vmalloc.h>
14 #include <linux/highmem.h>
15 #include <linux/uaccess.h>
16 
17 #include "ixgbe.h"
18 #include "ixgbe_phy.h"
19 
20 
21 enum {NETDEV_STATS, IXGBE_STATS};
22 
23 struct ixgbe_stats {
24 	char stat_string[ETH_GSTRING_LEN];
25 	int type;
26 	int sizeof_stat;
27 	int stat_offset;
28 };
29 
30 #define IXGBE_STAT(m)		IXGBE_STATS, \
31 				sizeof(((struct ixgbe_adapter *)0)->m), \
32 				offsetof(struct ixgbe_adapter, m)
33 #define IXGBE_NETDEV_STAT(m)	NETDEV_STATS, \
34 				sizeof(((struct rtnl_link_stats64 *)0)->m), \
35 				offsetof(struct rtnl_link_stats64, m)
36 
37 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
38 	{"rx_packets", IXGBE_NETDEV_STAT(rx_packets)},
39 	{"tx_packets", IXGBE_NETDEV_STAT(tx_packets)},
40 	{"rx_bytes", IXGBE_NETDEV_STAT(rx_bytes)},
41 	{"tx_bytes", IXGBE_NETDEV_STAT(tx_bytes)},
42 	{"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
43 	{"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
44 	{"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
45 	{"tx_bytes_nic", IXGBE_STAT(stats.gotc)},
46 	{"lsc_int", IXGBE_STAT(lsc_int)},
47 	{"tx_busy", IXGBE_STAT(tx_busy)},
48 	{"non_eop_descs", IXGBE_STAT(non_eop_descs)},
49 	{"rx_errors", IXGBE_NETDEV_STAT(rx_errors)},
50 	{"tx_errors", IXGBE_NETDEV_STAT(tx_errors)},
51 	{"rx_dropped", IXGBE_NETDEV_STAT(rx_dropped)},
52 	{"tx_dropped", IXGBE_NETDEV_STAT(tx_dropped)},
53 	{"multicast", IXGBE_NETDEV_STAT(multicast)},
54 	{"broadcast", IXGBE_STAT(stats.bprc)},
55 	{"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
56 	{"collisions", IXGBE_NETDEV_STAT(collisions)},
57 	{"rx_over_errors", IXGBE_NETDEV_STAT(rx_over_errors)},
58 	{"rx_crc_errors", IXGBE_NETDEV_STAT(rx_crc_errors)},
59 	{"rx_frame_errors", IXGBE_NETDEV_STAT(rx_frame_errors)},
60 	{"hw_rsc_aggregated", IXGBE_STAT(rsc_total_count)},
61 	{"hw_rsc_flushed", IXGBE_STAT(rsc_total_flush)},
62 	{"fdir_match", IXGBE_STAT(stats.fdirmatch)},
63 	{"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
64 	{"fdir_overflow", IXGBE_STAT(fdir_overflow)},
65 	{"rx_fifo_errors", IXGBE_NETDEV_STAT(rx_fifo_errors)},
66 	{"rx_missed_errors", IXGBE_NETDEV_STAT(rx_missed_errors)},
67 	{"tx_aborted_errors", IXGBE_NETDEV_STAT(tx_aborted_errors)},
68 	{"tx_carrier_errors", IXGBE_NETDEV_STAT(tx_carrier_errors)},
69 	{"tx_fifo_errors", IXGBE_NETDEV_STAT(tx_fifo_errors)},
70 	{"tx_heartbeat_errors", IXGBE_NETDEV_STAT(tx_heartbeat_errors)},
71 	{"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
72 	{"tx_restart_queue", IXGBE_STAT(restart_queue)},
73 	{"rx_length_errors", IXGBE_STAT(stats.rlec)},
74 	{"rx_long_length_errors", IXGBE_STAT(stats.roc)},
75 	{"rx_short_length_errors", IXGBE_STAT(stats.ruc)},
76 	{"tx_flow_control_xon", IXGBE_STAT(stats.lxontxc)},
77 	{"rx_flow_control_xon", IXGBE_STAT(stats.lxonrxc)},
78 	{"tx_flow_control_xoff", IXGBE_STAT(stats.lxofftxc)},
79 	{"rx_flow_control_xoff", IXGBE_STAT(stats.lxoffrxc)},
80 	{"rx_csum_offload_errors", IXGBE_STAT(hw_csum_rx_error)},
81 	{"alloc_rx_page", IXGBE_STAT(alloc_rx_page)},
82 	{"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
83 	{"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
84 	{"rx_no_dma_resources", IXGBE_STAT(hw_rx_no_dma_resources)},
85 	{"os2bmc_rx_by_bmc", IXGBE_STAT(stats.o2bgptc)},
86 	{"os2bmc_tx_by_bmc", IXGBE_STAT(stats.b2ospc)},
87 	{"os2bmc_tx_by_host", IXGBE_STAT(stats.o2bspc)},
88 	{"os2bmc_rx_by_host", IXGBE_STAT(stats.b2ogprc)},
89 	{"tx_hwtstamp_timeouts", IXGBE_STAT(tx_hwtstamp_timeouts)},
90 	{"tx_hwtstamp_skipped", IXGBE_STAT(tx_hwtstamp_skipped)},
91 	{"rx_hwtstamp_cleared", IXGBE_STAT(rx_hwtstamp_cleared)},
92 	{"tx_ipsec", IXGBE_STAT(tx_ipsec)},
93 	{"rx_ipsec", IXGBE_STAT(rx_ipsec)},
94 #ifdef IXGBE_FCOE
95 	{"fcoe_bad_fccrc", IXGBE_STAT(stats.fccrc)},
96 	{"rx_fcoe_dropped", IXGBE_STAT(stats.fcoerpdc)},
97 	{"rx_fcoe_packets", IXGBE_STAT(stats.fcoeprc)},
98 	{"rx_fcoe_dwords", IXGBE_STAT(stats.fcoedwrc)},
99 	{"fcoe_noddp", IXGBE_STAT(stats.fcoe_noddp)},
100 	{"fcoe_noddp_ext_buff", IXGBE_STAT(stats.fcoe_noddp_ext_buff)},
101 	{"tx_fcoe_packets", IXGBE_STAT(stats.fcoeptc)},
102 	{"tx_fcoe_dwords", IXGBE_STAT(stats.fcoedwtc)},
103 #endif /* IXGBE_FCOE */
104 };
105 
106 /* ixgbe allocates num_tx_queues and num_rx_queues symmetrically so
107  * we set the num_rx_queues to evaluate to num_tx_queues. This is
108  * used because we do not have a good way to get the max number of
109  * rx queues with CONFIG_RPS disabled.
110  */
111 #define IXGBE_NUM_RX_QUEUES netdev->num_tx_queues
112 
113 #define IXGBE_QUEUE_STATS_LEN ( \
114 	(netdev->num_tx_queues + IXGBE_NUM_RX_QUEUES) * \
115 	(sizeof(struct ixgbe_queue_stats) / sizeof(u64)))
116 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
117 #define IXGBE_PB_STATS_LEN ( \
118 			(sizeof(((struct ixgbe_adapter *)0)->stats.pxonrxc) + \
119 			 sizeof(((struct ixgbe_adapter *)0)->stats.pxontxc) + \
120 			 sizeof(((struct ixgbe_adapter *)0)->stats.pxoffrxc) + \
121 			 sizeof(((struct ixgbe_adapter *)0)->stats.pxofftxc)) \
122 			/ sizeof(u64))
123 #define IXGBE_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + \
124 			 IXGBE_PB_STATS_LEN + \
125 			 IXGBE_QUEUE_STATS_LEN)
126 
127 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
128 	"Register test  (offline)", "Eeprom test    (offline)",
129 	"Interrupt test (offline)", "Loopback test  (offline)",
130 	"Link test   (on/offline)"
131 };
132 #define IXGBE_TEST_LEN sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN
133 
134 static const char ixgbe_priv_flags_strings[][ETH_GSTRING_LEN] = {
135 #define IXGBE_PRIV_FLAGS_LEGACY_RX	BIT(0)
136 	"legacy-rx",
137 #define IXGBE_PRIV_FLAGS_VF_IPSEC_EN	BIT(1)
138 	"vf-ipsec",
139 #define IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF	BIT(2)
140 	"mdd-disable-vf",
141 };
142 
143 #define IXGBE_PRIV_FLAGS_STR_LEN ARRAY_SIZE(ixgbe_priv_flags_strings)
144 
145 #define ixgbe_isbackplane(type) ((type) == ixgbe_media_type_backplane)
146 
ixgbe_set_supported_10gtypes(struct ixgbe_hw * hw,struct ethtool_link_ksettings * cmd)147 static void ixgbe_set_supported_10gtypes(struct ixgbe_hw *hw,
148 					 struct ethtool_link_ksettings *cmd)
149 {
150 	if (!ixgbe_isbackplane(hw->phy.media_type)) {
151 		ethtool_link_ksettings_add_link_mode(cmd, supported,
152 						     10000baseT_Full);
153 		return;
154 	}
155 
156 	switch (hw->device_id) {
157 	case IXGBE_DEV_ID_82598:
158 	case IXGBE_DEV_ID_82599_KX4:
159 	case IXGBE_DEV_ID_82599_KX4_MEZZ:
160 	case IXGBE_DEV_ID_X550EM_X_KX4:
161 		ethtool_link_ksettings_add_link_mode
162 			(cmd, supported, 10000baseKX4_Full);
163 		break;
164 	case IXGBE_DEV_ID_82598_BX:
165 	case IXGBE_DEV_ID_82599_KR:
166 	case IXGBE_DEV_ID_X550EM_X_KR:
167 	case IXGBE_DEV_ID_X550EM_X_XFI:
168 		ethtool_link_ksettings_add_link_mode
169 			(cmd, supported, 10000baseKR_Full);
170 		break;
171 	default:
172 		ethtool_link_ksettings_add_link_mode
173 			(cmd, supported, 10000baseKX4_Full);
174 		ethtool_link_ksettings_add_link_mode
175 			(cmd, supported, 10000baseKR_Full);
176 		break;
177 	}
178 }
179 
ixgbe_set_advertising_10gtypes(struct ixgbe_hw * hw,struct ethtool_link_ksettings * cmd)180 static void ixgbe_set_advertising_10gtypes(struct ixgbe_hw *hw,
181 					   struct ethtool_link_ksettings *cmd)
182 {
183 	if (!ixgbe_isbackplane(hw->phy.media_type)) {
184 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
185 						     10000baseT_Full);
186 		return;
187 	}
188 
189 	switch (hw->device_id) {
190 	case IXGBE_DEV_ID_82598:
191 	case IXGBE_DEV_ID_82599_KX4:
192 	case IXGBE_DEV_ID_82599_KX4_MEZZ:
193 	case IXGBE_DEV_ID_X550EM_X_KX4:
194 		ethtool_link_ksettings_add_link_mode
195 			(cmd, advertising, 10000baseKX4_Full);
196 		break;
197 	case IXGBE_DEV_ID_82598_BX:
198 	case IXGBE_DEV_ID_82599_KR:
199 	case IXGBE_DEV_ID_X550EM_X_KR:
200 	case IXGBE_DEV_ID_X550EM_X_XFI:
201 		ethtool_link_ksettings_add_link_mode
202 			(cmd, advertising, 10000baseKR_Full);
203 		break;
204 	default:
205 		ethtool_link_ksettings_add_link_mode
206 			(cmd, advertising, 10000baseKX4_Full);
207 		ethtool_link_ksettings_add_link_mode
208 			(cmd, advertising, 10000baseKR_Full);
209 		break;
210 	}
211 }
212 
ixgbe_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)213 static int ixgbe_get_link_ksettings(struct net_device *netdev,
214 				    struct ethtool_link_ksettings *cmd)
215 {
216 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
217 	struct ixgbe_hw *hw = &adapter->hw;
218 	ixgbe_link_speed supported_link;
219 	bool autoneg = false;
220 
221 	ethtool_link_ksettings_zero_link_mode(cmd, supported);
222 	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
223 
224 	hw->mac.ops.get_link_capabilities(hw, &supported_link, &autoneg);
225 
226 	/* set the supported link speeds */
227 	if (supported_link & IXGBE_LINK_SPEED_10GB_FULL) {
228 		ixgbe_set_supported_10gtypes(hw, cmd);
229 		ixgbe_set_advertising_10gtypes(hw, cmd);
230 	}
231 	if (supported_link & IXGBE_LINK_SPEED_5GB_FULL)
232 		ethtool_link_ksettings_add_link_mode(cmd, supported,
233 						     5000baseT_Full);
234 
235 	if (supported_link & IXGBE_LINK_SPEED_2_5GB_FULL)
236 		ethtool_link_ksettings_add_link_mode(cmd, supported,
237 						     2500baseT_Full);
238 
239 	if (supported_link & IXGBE_LINK_SPEED_1GB_FULL) {
240 		if (ixgbe_isbackplane(hw->phy.media_type)) {
241 			ethtool_link_ksettings_add_link_mode(cmd, supported,
242 							     1000baseKX_Full);
243 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
244 							     1000baseKX_Full);
245 		} else {
246 			ethtool_link_ksettings_add_link_mode(cmd, supported,
247 							     1000baseT_Full);
248 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
249 							     1000baseT_Full);
250 		}
251 	}
252 	if (supported_link & IXGBE_LINK_SPEED_100_FULL) {
253 		ethtool_link_ksettings_add_link_mode(cmd, supported,
254 						     100baseT_Full);
255 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
256 						     100baseT_Full);
257 	}
258 	if (supported_link & IXGBE_LINK_SPEED_10_FULL) {
259 		ethtool_link_ksettings_add_link_mode(cmd, supported,
260 						     10baseT_Full);
261 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
262 						     10baseT_Full);
263 	}
264 
265 	/* set the advertised speeds */
266 	if (hw->phy.autoneg_advertised) {
267 		ethtool_link_ksettings_zero_link_mode(cmd, advertising);
268 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10_FULL)
269 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
270 							     10baseT_Full);
271 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL)
272 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
273 							     100baseT_Full);
274 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL)
275 			ixgbe_set_advertising_10gtypes(hw, cmd);
276 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) {
277 			if (ethtool_link_ksettings_test_link_mode
278 				(cmd, supported, 1000baseKX_Full))
279 				ethtool_link_ksettings_add_link_mode
280 					(cmd, advertising, 1000baseKX_Full);
281 			else
282 				ethtool_link_ksettings_add_link_mode
283 					(cmd, advertising, 1000baseT_Full);
284 		}
285 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_5GB_FULL)
286 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
287 							     5000baseT_Full);
288 		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
289 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
290 							     2500baseT_Full);
291 	} else {
292 		if (hw->phy.multispeed_fiber && !autoneg) {
293 			if (supported_link & IXGBE_LINK_SPEED_10GB_FULL)
294 				ethtool_link_ksettings_add_link_mode
295 					(cmd, advertising, 10000baseT_Full);
296 		}
297 	}
298 
299 	if (autoneg) {
300 		ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
301 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
302 		cmd->base.autoneg = AUTONEG_ENABLE;
303 	} else
304 		cmd->base.autoneg = AUTONEG_DISABLE;
305 
306 	/* Determine the remaining settings based on the PHY type. */
307 	switch (adapter->hw.phy.type) {
308 	case ixgbe_phy_tn:
309 	case ixgbe_phy_aq:
310 	case ixgbe_phy_x550em_ext_t:
311 	case ixgbe_phy_fw:
312 	case ixgbe_phy_cu_unknown:
313 		ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
314 		ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
315 		cmd->base.port = PORT_TP;
316 		break;
317 	case ixgbe_phy_qt:
318 		ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
319 		ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
320 		cmd->base.port = PORT_FIBRE;
321 		break;
322 	case ixgbe_phy_nl:
323 	case ixgbe_phy_sfp_passive_tyco:
324 	case ixgbe_phy_sfp_passive_unknown:
325 	case ixgbe_phy_sfp_ftl:
326 	case ixgbe_phy_sfp_avago:
327 	case ixgbe_phy_sfp_intel:
328 	case ixgbe_phy_sfp_unknown:
329 	case ixgbe_phy_qsfp_passive_unknown:
330 	case ixgbe_phy_qsfp_active_unknown:
331 	case ixgbe_phy_qsfp_intel:
332 	case ixgbe_phy_qsfp_unknown:
333 		/* SFP+ devices, further checking needed */
334 		switch (adapter->hw.phy.sfp_type) {
335 		case ixgbe_sfp_type_da_cu:
336 		case ixgbe_sfp_type_da_cu_core0:
337 		case ixgbe_sfp_type_da_cu_core1:
338 			ethtool_link_ksettings_add_link_mode(cmd, supported,
339 							     FIBRE);
340 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
341 							     FIBRE);
342 			cmd->base.port = PORT_DA;
343 			break;
344 		case ixgbe_sfp_type_sr:
345 		case ixgbe_sfp_type_lr:
346 		case ixgbe_sfp_type_srlr_core0:
347 		case ixgbe_sfp_type_srlr_core1:
348 		case ixgbe_sfp_type_1g_sx_core0:
349 		case ixgbe_sfp_type_1g_sx_core1:
350 		case ixgbe_sfp_type_1g_lx_core0:
351 		case ixgbe_sfp_type_1g_lx_core1:
352 		case ixgbe_sfp_type_1g_bx_core0:
353 		case ixgbe_sfp_type_1g_bx_core1:
354 		case ixgbe_sfp_type_10g_bx_core0:
355 		case ixgbe_sfp_type_10g_bx_core1:
356 			ethtool_link_ksettings_add_link_mode(cmd, supported,
357 							     FIBRE);
358 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
359 							     FIBRE);
360 			cmd->base.port = PORT_FIBRE;
361 			break;
362 		case ixgbe_sfp_type_not_present:
363 			ethtool_link_ksettings_add_link_mode(cmd, supported,
364 							     FIBRE);
365 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
366 							     FIBRE);
367 			cmd->base.port = PORT_NONE;
368 			break;
369 		case ixgbe_sfp_type_1g_cu_core0:
370 		case ixgbe_sfp_type_1g_cu_core1:
371 			ethtool_link_ksettings_add_link_mode(cmd, supported,
372 							     TP);
373 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
374 							     TP);
375 			cmd->base.port = PORT_TP;
376 			break;
377 		case ixgbe_sfp_type_unknown:
378 		default:
379 			ethtool_link_ksettings_add_link_mode(cmd, supported,
380 							     FIBRE);
381 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
382 							     FIBRE);
383 			cmd->base.port = PORT_OTHER;
384 			break;
385 		}
386 		break;
387 	case ixgbe_phy_xaui:
388 		ethtool_link_ksettings_add_link_mode(cmd, supported,
389 						     FIBRE);
390 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
391 						     FIBRE);
392 		cmd->base.port = PORT_NONE;
393 		break;
394 	case ixgbe_phy_unknown:
395 	case ixgbe_phy_generic:
396 	case ixgbe_phy_sfp_unsupported:
397 	default:
398 		ethtool_link_ksettings_add_link_mode(cmd, supported,
399 						     FIBRE);
400 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
401 						     FIBRE);
402 		cmd->base.port = PORT_OTHER;
403 		break;
404 	}
405 
406 	/* Indicate pause support */
407 	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
408 
409 	switch (hw->fc.requested_mode) {
410 	case ixgbe_fc_full:
411 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
412 		break;
413 	case ixgbe_fc_rx_pause:
414 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
415 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
416 						     Asym_Pause);
417 		break;
418 	case ixgbe_fc_tx_pause:
419 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
420 						     Asym_Pause);
421 		break;
422 	default:
423 		ethtool_link_ksettings_del_link_mode(cmd, advertising, Pause);
424 		ethtool_link_ksettings_del_link_mode(cmd, advertising,
425 						     Asym_Pause);
426 	}
427 
428 	if (netif_carrier_ok(netdev)) {
429 		switch (adapter->link_speed) {
430 		case IXGBE_LINK_SPEED_10GB_FULL:
431 			cmd->base.speed = SPEED_10000;
432 			break;
433 		case IXGBE_LINK_SPEED_5GB_FULL:
434 			cmd->base.speed = SPEED_5000;
435 			break;
436 		case IXGBE_LINK_SPEED_2_5GB_FULL:
437 			cmd->base.speed = SPEED_2500;
438 			break;
439 		case IXGBE_LINK_SPEED_1GB_FULL:
440 			cmd->base.speed = SPEED_1000;
441 			break;
442 		case IXGBE_LINK_SPEED_100_FULL:
443 			cmd->base.speed = SPEED_100;
444 			break;
445 		case IXGBE_LINK_SPEED_10_FULL:
446 			cmd->base.speed = SPEED_10;
447 			break;
448 		default:
449 			break;
450 		}
451 		cmd->base.duplex = DUPLEX_FULL;
452 	} else {
453 		cmd->base.speed = SPEED_UNKNOWN;
454 		cmd->base.duplex = DUPLEX_UNKNOWN;
455 	}
456 
457 	return 0;
458 }
459 
ixgbe_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)460 static int ixgbe_set_link_ksettings(struct net_device *netdev,
461 				    const struct ethtool_link_ksettings *cmd)
462 {
463 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
464 	struct ixgbe_hw *hw = &adapter->hw;
465 	u32 advertised, old;
466 	int err = 0;
467 
468 	if ((hw->phy.media_type == ixgbe_media_type_copper) ||
469 	    (hw->phy.multispeed_fiber)) {
470 		/*
471 		 * this function does not support duplex forcing, but can
472 		 * limit the advertising of the adapter to the specified speed
473 		 */
474 		if (!linkmode_subset(cmd->link_modes.advertising,
475 				     cmd->link_modes.supported))
476 			return -EINVAL;
477 
478 		/* only allow one speed at a time if no autoneg */
479 		if (!cmd->base.autoneg && hw->phy.multispeed_fiber) {
480 			if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
481 								  10000baseT_Full) &&
482 			    ethtool_link_ksettings_test_link_mode(cmd, advertising,
483 								  1000baseT_Full))
484 				return -EINVAL;
485 		}
486 
487 		old = hw->phy.autoneg_advertised;
488 		advertised = 0;
489 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
490 							  10000baseT_Full))
491 			advertised |= IXGBE_LINK_SPEED_10GB_FULL;
492 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
493 							  5000baseT_Full))
494 			advertised |= IXGBE_LINK_SPEED_5GB_FULL;
495 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
496 							  2500baseT_Full))
497 			advertised |= IXGBE_LINK_SPEED_2_5GB_FULL;
498 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
499 							  1000baseT_Full))
500 			advertised |= IXGBE_LINK_SPEED_1GB_FULL;
501 
502 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
503 							  100baseT_Full))
504 			advertised |= IXGBE_LINK_SPEED_100_FULL;
505 
506 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
507 							  10baseT_Full))
508 			advertised |= IXGBE_LINK_SPEED_10_FULL;
509 
510 		if (old == advertised)
511 			return err;
512 		/* this sets the link speed and restarts auto-neg */
513 		while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
514 			usleep_range(1000, 2000);
515 
516 		hw->mac.autotry_restart = true;
517 		err = hw->mac.ops.setup_link(hw, advertised, true);
518 		if (err) {
519 			e_info(probe, "setup link failed with code %d\n", err);
520 			hw->mac.ops.setup_link(hw, old, true);
521 		}
522 		clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
523 	} else {
524 		/* in this case we currently only support 10Gb/FULL */
525 		u32 speed = cmd->base.speed;
526 
527 		if ((cmd->base.autoneg == AUTONEG_ENABLE) ||
528 		    (!ethtool_link_ksettings_test_link_mode(cmd, advertising,
529 							    10000baseT_Full)) ||
530 		    (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
531 			return -EINVAL;
532 	}
533 
534 	return err;
535 }
536 
ixgbe_get_pause_stats(struct net_device * netdev,struct ethtool_pause_stats * stats)537 static void ixgbe_get_pause_stats(struct net_device *netdev,
538 				  struct ethtool_pause_stats *stats)
539 {
540 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
541 	struct ixgbe_hw_stats *hwstats = &adapter->stats;
542 
543 	stats->tx_pause_frames = hwstats->lxontxc + hwstats->lxofftxc;
544 	stats->rx_pause_frames = hwstats->lxonrxc + hwstats->lxoffrxc;
545 }
546 
ixgbe_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)547 static void ixgbe_get_pauseparam(struct net_device *netdev,
548 				 struct ethtool_pauseparam *pause)
549 {
550 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
551 	struct ixgbe_hw *hw = &adapter->hw;
552 
553 	if (ixgbe_device_supports_autoneg_fc(hw) &&
554 	    !hw->fc.disable_fc_autoneg)
555 		pause->autoneg = 1;
556 	else
557 		pause->autoneg = 0;
558 
559 	if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
560 		pause->rx_pause = 1;
561 	} else if (hw->fc.current_mode == ixgbe_fc_tx_pause) {
562 		pause->tx_pause = 1;
563 	} else if (hw->fc.current_mode == ixgbe_fc_full) {
564 		pause->rx_pause = 1;
565 		pause->tx_pause = 1;
566 	}
567 }
568 
ixgbe_set_pauseparam_finalize(struct net_device * netdev,struct ixgbe_fc_info * fc)569 static void ixgbe_set_pauseparam_finalize(struct net_device *netdev,
570 					  struct ixgbe_fc_info *fc)
571 {
572 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
573 	struct ixgbe_hw *hw = &adapter->hw;
574 
575 	/* If the thing changed then we'll update and use new autoneg. */
576 	if (memcmp(fc, &hw->fc, sizeof(*fc))) {
577 		hw->fc = *fc;
578 		if (netif_running(netdev))
579 			ixgbe_reinit_locked(adapter);
580 		else
581 			ixgbe_reset(adapter);
582 	}
583 }
584 
ixgbe_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)585 static int ixgbe_set_pauseparam(struct net_device *netdev,
586 				struct ethtool_pauseparam *pause)
587 {
588 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
589 	struct ixgbe_hw *hw = &adapter->hw;
590 	struct ixgbe_fc_info fc = hw->fc;
591 
592 	/* 82598 does no support link flow control with DCB enabled */
593 	if ((hw->mac.type == ixgbe_mac_82598EB) &&
594 	    (adapter->flags & IXGBE_FLAG_DCB_ENABLED))
595 		return -EINVAL;
596 
597 	/* some devices do not support autoneg of link flow control */
598 	if ((pause->autoneg == AUTONEG_ENABLE) &&
599 	    !ixgbe_device_supports_autoneg_fc(hw))
600 		return -EINVAL;
601 
602 	fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE);
603 
604 	if ((pause->rx_pause && pause->tx_pause) || pause->autoneg)
605 		fc.requested_mode = ixgbe_fc_full;
606 	else if (pause->rx_pause && !pause->tx_pause)
607 		fc.requested_mode = ixgbe_fc_rx_pause;
608 	else if (!pause->rx_pause && pause->tx_pause)
609 		fc.requested_mode = ixgbe_fc_tx_pause;
610 	else
611 		fc.requested_mode = ixgbe_fc_none;
612 
613 	ixgbe_set_pauseparam_finalize(netdev, &fc);
614 
615 	return 0;
616 }
617 
ixgbe_set_pauseparam_e610(struct net_device * netdev,struct ethtool_pauseparam * pause)618 static int ixgbe_set_pauseparam_e610(struct net_device *netdev,
619 				     struct ethtool_pauseparam *pause)
620 {
621 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
622 	struct ixgbe_hw *hw = &adapter->hw;
623 	struct ixgbe_fc_info fc = hw->fc;
624 
625 	if (!ixgbe_device_supports_autoneg_fc(hw))
626 		return -EOPNOTSUPP;
627 
628 	if (pause->autoneg == AUTONEG_DISABLE) {
629 		netdev_info(netdev,
630 			    "Cannot disable autonegotiation on this device.\n");
631 		return -EOPNOTSUPP;
632 	}
633 
634 	fc.disable_fc_autoneg = false;
635 
636 	if (pause->rx_pause && pause->tx_pause)
637 		fc.requested_mode = ixgbe_fc_full;
638 	else if (pause->rx_pause)
639 		fc.requested_mode = ixgbe_fc_rx_pause;
640 	else if (pause->tx_pause)
641 		fc.requested_mode = ixgbe_fc_tx_pause;
642 	else
643 		fc.requested_mode = ixgbe_fc_none;
644 
645 	ixgbe_set_pauseparam_finalize(netdev, &fc);
646 
647 	return 0;
648 }
649 
ixgbe_get_msglevel(struct net_device * netdev)650 static u32 ixgbe_get_msglevel(struct net_device *netdev)
651 {
652 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
653 	return adapter->msg_enable;
654 }
655 
ixgbe_set_msglevel(struct net_device * netdev,u32 data)656 static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
657 {
658 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
659 	adapter->msg_enable = data;
660 }
661 
ixgbe_get_regs_len(struct net_device * netdev)662 static int ixgbe_get_regs_len(struct net_device *netdev)
663 {
664 #define IXGBE_REGS_LEN  1145
665 	return IXGBE_REGS_LEN * sizeof(u32);
666 }
667 
668 #define IXGBE_GET_STAT(_A_, _R_) _A_->stats._R_
669 
ixgbe_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)670 static void ixgbe_get_regs(struct net_device *netdev,
671 			   struct ethtool_regs *regs, void *p)
672 {
673 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
674 	struct ixgbe_hw *hw = &adapter->hw;
675 	u32 *regs_buff = p;
676 	u8 i;
677 
678 	memset(p, 0, IXGBE_REGS_LEN * sizeof(u32));
679 
680 	regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
681 			hw->device_id;
682 
683 	/* General Registers */
684 	regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_CTRL);
685 	regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_STATUS);
686 	regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
687 	regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_ESDP);
688 	regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_EODSDP);
689 	regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
690 	regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_FRTIMER);
691 	regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_TCPTIMER);
692 
693 	/* NVM Register */
694 	regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
695 	regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_EERD);
696 	regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_FLA(hw));
697 	regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_EEMNGCTL);
698 	regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_EEMNGDATA);
699 	regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_FLMNGCTL);
700 	regs_buff[14] = IXGBE_READ_REG(hw, IXGBE_FLMNGDATA);
701 	regs_buff[15] = IXGBE_READ_REG(hw, IXGBE_FLMNGCNT);
702 	regs_buff[16] = IXGBE_READ_REG(hw, IXGBE_FLOP);
703 	regs_buff[17] = IXGBE_READ_REG(hw, IXGBE_GRC(hw));
704 
705 	/* Interrupt */
706 	/* don't read EICR because it can clear interrupt causes, instead
707 	 * read EICS which is a shadow but doesn't clear EICR */
708 	regs_buff[18] = IXGBE_READ_REG(hw, IXGBE_EICS);
709 	regs_buff[19] = IXGBE_READ_REG(hw, IXGBE_EICS);
710 	regs_buff[20] = IXGBE_READ_REG(hw, IXGBE_EIMS);
711 	regs_buff[21] = IXGBE_READ_REG(hw, IXGBE_EIMC);
712 	regs_buff[22] = IXGBE_READ_REG(hw, IXGBE_EIAC);
713 	regs_buff[23] = IXGBE_READ_REG(hw, IXGBE_EIAM);
714 	regs_buff[24] = IXGBE_READ_REG(hw, IXGBE_EITR(0));
715 	regs_buff[25] = IXGBE_READ_REG(hw, IXGBE_IVAR(0));
716 	regs_buff[26] = IXGBE_READ_REG(hw, IXGBE_MSIXT);
717 	regs_buff[27] = IXGBE_READ_REG(hw, IXGBE_MSIXPBA);
718 	regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_PBACL(0));
719 	regs_buff[29] = IXGBE_READ_REG(hw, IXGBE_GPIE);
720 
721 	/* Flow Control */
722 	regs_buff[30] = IXGBE_READ_REG(hw, IXGBE_PFCTOP);
723 	for (i = 0; i < 4; i++)
724 		regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_FCTTV(i));
725 	for (i = 0; i < 8; i++) {
726 		switch (hw->mac.type) {
727 		case ixgbe_mac_82598EB:
728 			regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL(i));
729 			regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH(i));
730 			break;
731 		case ixgbe_mac_82599EB:
732 		case ixgbe_mac_X540:
733 		case ixgbe_mac_X550:
734 		case ixgbe_mac_X550EM_x:
735 		case ixgbe_mac_x550em_a:
736 		case ixgbe_mac_e610:
737 			regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL_82599(i));
738 			regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH_82599(i));
739 			break;
740 		default:
741 			break;
742 		}
743 	}
744 	regs_buff[51] = IXGBE_READ_REG(hw, IXGBE_FCRTV);
745 	regs_buff[52] = IXGBE_READ_REG(hw, IXGBE_TFCS);
746 
747 	/* Receive DMA */
748 	for (i = 0; i < 64; i++)
749 		regs_buff[53 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
750 	for (i = 0; i < 64; i++)
751 		regs_buff[117 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
752 	for (i = 0; i < 64; i++)
753 		regs_buff[181 + i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
754 	for (i = 0; i < 64; i++)
755 		regs_buff[245 + i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
756 	for (i = 0; i < 64; i++)
757 		regs_buff[309 + i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
758 	for (i = 0; i < 64; i++)
759 		regs_buff[373 + i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
760 	for (i = 0; i < 16; i++)
761 		regs_buff[437 + i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
762 	for (i = 0; i < 16; i++)
763 		regs_buff[453 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
764 	regs_buff[469] = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
765 	for (i = 0; i < 8; i++)
766 		regs_buff[470 + i] = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
767 	regs_buff[478] = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
768 	regs_buff[479] = IXGBE_READ_REG(hw, IXGBE_DROPEN);
769 
770 	/* Receive */
771 	regs_buff[480] = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
772 	regs_buff[481] = IXGBE_READ_REG(hw, IXGBE_RFCTL);
773 	for (i = 0; i < 16; i++)
774 		regs_buff[482 + i] = IXGBE_READ_REG(hw, IXGBE_RAL(i));
775 	for (i = 0; i < 16; i++)
776 		regs_buff[498 + i] = IXGBE_READ_REG(hw, IXGBE_RAH(i));
777 	regs_buff[514] = IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0));
778 	regs_buff[515] = IXGBE_READ_REG(hw, IXGBE_FCTRL);
779 	regs_buff[516] = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
780 	regs_buff[517] = IXGBE_READ_REG(hw, IXGBE_MCSTCTRL);
781 	regs_buff[518] = IXGBE_READ_REG(hw, IXGBE_MRQC);
782 	regs_buff[519] = IXGBE_READ_REG(hw, IXGBE_VMD_CTL);
783 	for (i = 0; i < 8; i++)
784 		regs_buff[520 + i] = IXGBE_READ_REG(hw, IXGBE_IMIR(i));
785 	for (i = 0; i < 8; i++)
786 		regs_buff[528 + i] = IXGBE_READ_REG(hw, IXGBE_IMIREXT(i));
787 	regs_buff[536] = IXGBE_READ_REG(hw, IXGBE_IMIRVP);
788 
789 	/* Transmit */
790 	for (i = 0; i < 32; i++)
791 		regs_buff[537 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
792 	for (i = 0; i < 32; i++)
793 		regs_buff[569 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
794 	for (i = 0; i < 32; i++)
795 		regs_buff[601 + i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
796 	for (i = 0; i < 32; i++)
797 		regs_buff[633 + i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
798 	for (i = 0; i < 32; i++)
799 		regs_buff[665 + i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
800 	for (i = 0; i < 32; i++)
801 		regs_buff[697 + i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
802 	for (i = 0; i < 32; i++)
803 		regs_buff[729 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAL(i));
804 	for (i = 0; i < 32; i++)
805 		regs_buff[761 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAH(i));
806 	regs_buff[793] = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
807 	for (i = 0; i < 16; i++)
808 		regs_buff[794 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
809 	regs_buff[810] = IXGBE_READ_REG(hw, IXGBE_TIPG);
810 	for (i = 0; i < 8; i++)
811 		regs_buff[811 + i] = IXGBE_READ_REG(hw, IXGBE_TXPBSIZE(i));
812 	regs_buff[819] = IXGBE_READ_REG(hw, IXGBE_MNGTXMAP);
813 
814 	/* Wake Up */
815 	regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
816 	regs_buff[821] = IXGBE_READ_REG(hw, IXGBE_WUFC);
817 	regs_buff[822] = IXGBE_READ_REG(hw, IXGBE_WUS);
818 	regs_buff[823] = IXGBE_READ_REG(hw, IXGBE_IPAV);
819 	regs_buff[824] = IXGBE_READ_REG(hw, IXGBE_IP4AT);
820 	regs_buff[825] = IXGBE_READ_REG(hw, IXGBE_IP6AT);
821 	regs_buff[826] = IXGBE_READ_REG(hw, IXGBE_WUPL);
822 	regs_buff[827] = IXGBE_READ_REG(hw, IXGBE_WUPM);
823 	regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));
824 
825 	/* DCB */
826 	regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);   /* same as FCCFG  */
827 	regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS); /* same as RTTPCS */
828 
829 	switch (hw->mac.type) {
830 	case ixgbe_mac_82598EB:
831 		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
832 		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
833 		for (i = 0; i < 8; i++)
834 			regs_buff[833 + i] =
835 				IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
836 		for (i = 0; i < 8; i++)
837 			regs_buff[841 + i] =
838 				IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
839 		for (i = 0; i < 8; i++)
840 			regs_buff[849 + i] =
841 				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
842 		for (i = 0; i < 8; i++)
843 			regs_buff[857 + i] =
844 				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
845 		break;
846 	case ixgbe_mac_82599EB:
847 	case ixgbe_mac_X540:
848 	case ixgbe_mac_X550:
849 	case ixgbe_mac_X550EM_x:
850 	case ixgbe_mac_x550em_a:
851 		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
852 		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RTRPCS);
853 		for (i = 0; i < 8; i++)
854 			regs_buff[833 + i] =
855 				IXGBE_READ_REG(hw, IXGBE_RTRPT4C(i));
856 		for (i = 0; i < 8; i++)
857 			regs_buff[841 + i] =
858 				IXGBE_READ_REG(hw, IXGBE_RTRPT4S(i));
859 		for (i = 0; i < 8; i++)
860 			regs_buff[849 + i] =
861 				IXGBE_READ_REG(hw, IXGBE_RTTDT2C(i));
862 		for (i = 0; i < 8; i++)
863 			regs_buff[857 + i] =
864 				IXGBE_READ_REG(hw, IXGBE_RTTDT2S(i));
865 		break;
866 	default:
867 		break;
868 	}
869 
870 	for (i = 0; i < 8; i++)
871 		regs_buff[865 + i] =
872 		IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i)); /* same as RTTPT2C */
873 	for (i = 0; i < 8; i++)
874 		regs_buff[873 + i] =
875 		IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i)); /* same as RTTPT2S */
876 
877 	/* Statistics */
878 	regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
879 	regs_buff[882] = IXGBE_GET_STAT(adapter, illerrc);
880 	regs_buff[883] = IXGBE_GET_STAT(adapter, errbc);
881 	regs_buff[884] = IXGBE_GET_STAT(adapter, mspdc);
882 	for (i = 0; i < 8; i++)
883 		regs_buff[885 + i] = IXGBE_GET_STAT(adapter, mpc[i]);
884 	regs_buff[893] = IXGBE_GET_STAT(adapter, mlfc);
885 	regs_buff[894] = IXGBE_GET_STAT(adapter, mrfc);
886 	regs_buff[895] = IXGBE_GET_STAT(adapter, rlec);
887 	regs_buff[896] = IXGBE_GET_STAT(adapter, lxontxc);
888 	regs_buff[897] = IXGBE_GET_STAT(adapter, lxonrxc);
889 	regs_buff[898] = IXGBE_GET_STAT(adapter, lxofftxc);
890 	regs_buff[899] = IXGBE_GET_STAT(adapter, lxoffrxc);
891 	for (i = 0; i < 8; i++)
892 		regs_buff[900 + i] = IXGBE_GET_STAT(adapter, pxontxc[i]);
893 	for (i = 0; i < 8; i++)
894 		regs_buff[908 + i] = IXGBE_GET_STAT(adapter, pxonrxc[i]);
895 	for (i = 0; i < 8; i++)
896 		regs_buff[916 + i] = IXGBE_GET_STAT(adapter, pxofftxc[i]);
897 	for (i = 0; i < 8; i++)
898 		regs_buff[924 + i] = IXGBE_GET_STAT(adapter, pxoffrxc[i]);
899 	regs_buff[932] = IXGBE_GET_STAT(adapter, prc64);
900 	regs_buff[933] = IXGBE_GET_STAT(adapter, prc127);
901 	regs_buff[934] = IXGBE_GET_STAT(adapter, prc255);
902 	regs_buff[935] = IXGBE_GET_STAT(adapter, prc511);
903 	regs_buff[936] = IXGBE_GET_STAT(adapter, prc1023);
904 	regs_buff[937] = IXGBE_GET_STAT(adapter, prc1522);
905 	regs_buff[938] = IXGBE_GET_STAT(adapter, gprc);
906 	regs_buff[939] = IXGBE_GET_STAT(adapter, bprc);
907 	regs_buff[940] = IXGBE_GET_STAT(adapter, mprc);
908 	regs_buff[941] = IXGBE_GET_STAT(adapter, gptc);
909 	regs_buff[942] = (u32)IXGBE_GET_STAT(adapter, gorc);
910 	regs_buff[943] = (u32)(IXGBE_GET_STAT(adapter, gorc) >> 32);
911 	regs_buff[944] = (u32)IXGBE_GET_STAT(adapter, gotc);
912 	regs_buff[945] = (u32)(IXGBE_GET_STAT(adapter, gotc) >> 32);
913 	for (i = 0; i < 8; i++)
914 		regs_buff[946 + i] = IXGBE_GET_STAT(adapter, rnbc[i]);
915 	regs_buff[954] = IXGBE_GET_STAT(adapter, ruc);
916 	regs_buff[955] = IXGBE_GET_STAT(adapter, rfc);
917 	regs_buff[956] = IXGBE_GET_STAT(adapter, roc);
918 	regs_buff[957] = IXGBE_GET_STAT(adapter, rjc);
919 	regs_buff[958] = IXGBE_GET_STAT(adapter, mngprc);
920 	regs_buff[959] = IXGBE_GET_STAT(adapter, mngpdc);
921 	regs_buff[960] = IXGBE_GET_STAT(adapter, mngptc);
922 	regs_buff[961] = (u32)IXGBE_GET_STAT(adapter, tor);
923 	regs_buff[962] = (u32)(IXGBE_GET_STAT(adapter, tor) >> 32);
924 	regs_buff[963] = IXGBE_GET_STAT(adapter, tpr);
925 	regs_buff[964] = IXGBE_GET_STAT(adapter, tpt);
926 	regs_buff[965] = IXGBE_GET_STAT(adapter, ptc64);
927 	regs_buff[966] = IXGBE_GET_STAT(adapter, ptc127);
928 	regs_buff[967] = IXGBE_GET_STAT(adapter, ptc255);
929 	regs_buff[968] = IXGBE_GET_STAT(adapter, ptc511);
930 	regs_buff[969] = IXGBE_GET_STAT(adapter, ptc1023);
931 	regs_buff[970] = IXGBE_GET_STAT(adapter, ptc1522);
932 	regs_buff[971] = IXGBE_GET_STAT(adapter, mptc);
933 	regs_buff[972] = IXGBE_GET_STAT(adapter, bptc);
934 	regs_buff[973] = IXGBE_GET_STAT(adapter, xec);
935 	for (i = 0; i < 16; i++)
936 		regs_buff[974 + i] = IXGBE_GET_STAT(adapter, qprc[i]);
937 	for (i = 0; i < 16; i++)
938 		regs_buff[990 + i] = IXGBE_GET_STAT(adapter, qptc[i]);
939 	for (i = 0; i < 16; i++)
940 		regs_buff[1006 + i] = IXGBE_GET_STAT(adapter, qbrc[i]);
941 	for (i = 0; i < 16; i++)
942 		regs_buff[1022 + i] = IXGBE_GET_STAT(adapter, qbtc[i]);
943 
944 	/* MAC */
945 	regs_buff[1038] = IXGBE_READ_REG(hw, IXGBE_PCS1GCFIG);
946 	regs_buff[1039] = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
947 	regs_buff[1040] = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
948 	regs_buff[1041] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG0);
949 	regs_buff[1042] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG1);
950 	regs_buff[1043] = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
951 	regs_buff[1044] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
952 	regs_buff[1045] = IXGBE_READ_REG(hw, IXGBE_PCS1GANNP);
953 	regs_buff[1046] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLPNP);
954 	regs_buff[1047] = IXGBE_READ_REG(hw, IXGBE_HLREG0);
955 	regs_buff[1048] = IXGBE_READ_REG(hw, IXGBE_HLREG1);
956 	regs_buff[1049] = IXGBE_READ_REG(hw, IXGBE_PAP);
957 	regs_buff[1050] = IXGBE_READ_REG(hw, IXGBE_MACA);
958 	regs_buff[1051] = IXGBE_READ_REG(hw, IXGBE_APAE);
959 	regs_buff[1052] = IXGBE_READ_REG(hw, IXGBE_ARD);
960 	regs_buff[1053] = IXGBE_READ_REG(hw, IXGBE_AIS);
961 	regs_buff[1054] = IXGBE_READ_REG(hw, IXGBE_MSCA);
962 	regs_buff[1055] = IXGBE_READ_REG(hw, IXGBE_MSRWD);
963 	regs_buff[1056] = IXGBE_READ_REG(hw, IXGBE_MLADD);
964 	regs_buff[1057] = IXGBE_READ_REG(hw, IXGBE_MHADD);
965 	regs_buff[1058] = IXGBE_READ_REG(hw, IXGBE_TREG);
966 	regs_buff[1059] = IXGBE_READ_REG(hw, IXGBE_PCSS1);
967 	regs_buff[1060] = IXGBE_READ_REG(hw, IXGBE_PCSS2);
968 	regs_buff[1061] = IXGBE_READ_REG(hw, IXGBE_XPCSS);
969 	regs_buff[1062] = IXGBE_READ_REG(hw, IXGBE_SERDESC);
970 	regs_buff[1063] = IXGBE_READ_REG(hw, IXGBE_MACS);
971 	regs_buff[1064] = IXGBE_READ_REG(hw, IXGBE_AUTOC);
972 	regs_buff[1065] = IXGBE_READ_REG(hw, IXGBE_LINKS);
973 	regs_buff[1066] = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
974 	regs_buff[1067] = IXGBE_READ_REG(hw, IXGBE_AUTOC3);
975 	regs_buff[1068] = IXGBE_READ_REG(hw, IXGBE_ANLP1);
976 	regs_buff[1069] = IXGBE_READ_REG(hw, IXGBE_ANLP2);
977 	regs_buff[1070] = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
978 
979 	/* Diagnostic */
980 	regs_buff[1071] = IXGBE_READ_REG(hw, IXGBE_RDSTATCTL);
981 	for (i = 0; i < 8; i++)
982 		regs_buff[1072 + i] = IXGBE_READ_REG(hw, IXGBE_RDSTAT(i));
983 	regs_buff[1080] = IXGBE_READ_REG(hw, IXGBE_RDHMPN);
984 	for (i = 0; i < 4; i++)
985 		regs_buff[1081 + i] = IXGBE_READ_REG(hw, IXGBE_RIC_DW(i));
986 	regs_buff[1085] = IXGBE_READ_REG(hw, IXGBE_RDPROBE);
987 	regs_buff[1086] = IXGBE_READ_REG(hw, IXGBE_TDSTATCTL);
988 	for (i = 0; i < 8; i++)
989 		regs_buff[1087 + i] = IXGBE_READ_REG(hw, IXGBE_TDSTAT(i));
990 	regs_buff[1095] = IXGBE_READ_REG(hw, IXGBE_TDHMPN);
991 	for (i = 0; i < 4; i++)
992 		regs_buff[1096 + i] = IXGBE_READ_REG(hw, IXGBE_TIC_DW(i));
993 	regs_buff[1100] = IXGBE_READ_REG(hw, IXGBE_TDPROBE);
994 	regs_buff[1101] = IXGBE_READ_REG(hw, IXGBE_TXBUFCTRL);
995 	for (i = 0; i < 4; i++)
996 		regs_buff[1102 + i] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA(i));
997 	regs_buff[1106] = IXGBE_READ_REG(hw, IXGBE_RXBUFCTRL);
998 	for (i = 0; i < 4; i++)
999 		regs_buff[1107 + i] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA(i));
1000 	for (i = 0; i < 8; i++)
1001 		regs_buff[1111 + i] = IXGBE_READ_REG(hw, IXGBE_PCIE_DIAG(i));
1002 	regs_buff[1119] = IXGBE_READ_REG(hw, IXGBE_RFVAL);
1003 	regs_buff[1120] = IXGBE_READ_REG(hw, IXGBE_MDFTC1);
1004 	regs_buff[1121] = IXGBE_READ_REG(hw, IXGBE_MDFTC2);
1005 	regs_buff[1122] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO1);
1006 	regs_buff[1123] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO2);
1007 	regs_buff[1124] = IXGBE_READ_REG(hw, IXGBE_MDFTS);
1008 	regs_buff[1125] = IXGBE_READ_REG(hw, IXGBE_PCIEECCCTL);
1009 	regs_buff[1126] = IXGBE_READ_REG(hw, IXGBE_PBTXECC);
1010 	regs_buff[1127] = IXGBE_READ_REG(hw, IXGBE_PBRXECC);
1011 
1012 	/* 82599 X540 specific registers  */
1013 	regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);
1014 
1015 	/* 82599 X540 specific DCB registers  */
1016 	regs_buff[1129] = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
1017 	regs_buff[1130] = IXGBE_READ_REG(hw, IXGBE_RTTUP2TC);
1018 	for (i = 0; i < 4; i++)
1019 		regs_buff[1131 + i] = IXGBE_READ_REG(hw, IXGBE_TXLLQ(i));
1020 	regs_buff[1135] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRM);
1021 					/* same as RTTQCNRM */
1022 	regs_buff[1136] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRD);
1023 					/* same as RTTQCNRR */
1024 
1025 	/* X540 specific DCB registers  */
1026 	regs_buff[1137] = IXGBE_READ_REG(hw, IXGBE_RTTQCNCR);
1027 	regs_buff[1138] = IXGBE_READ_REG(hw, IXGBE_RTTQCNTG);
1028 
1029 	/* Security config registers */
1030 	regs_buff[1139] = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);
1031 	regs_buff[1140] = IXGBE_READ_REG(hw, IXGBE_SECTXSTAT);
1032 	regs_buff[1141] = IXGBE_READ_REG(hw, IXGBE_SECTXBUFFAF);
1033 	regs_buff[1142] = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG);
1034 	regs_buff[1143] = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
1035 	regs_buff[1144] = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
1036 }
1037 
ixgbe_get_link_ext_stats(struct net_device * netdev,struct ethtool_link_ext_stats * stats)1038 static void ixgbe_get_link_ext_stats(struct net_device *netdev,
1039 				     struct ethtool_link_ext_stats *stats)
1040 {
1041 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1042 
1043 	stats->link_down_events = adapter->link_down_events;
1044 }
1045 
ixgbe_get_eeprom_len(struct net_device * netdev)1046 static int ixgbe_get_eeprom_len(struct net_device *netdev)
1047 {
1048 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1049 	return adapter->hw.eeprom.word_size * 2;
1050 }
1051 
ixgbe_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)1052 static int ixgbe_get_eeprom(struct net_device *netdev,
1053 			    struct ethtool_eeprom *eeprom, u8 *bytes)
1054 {
1055 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1056 	struct ixgbe_hw *hw = &adapter->hw;
1057 	u16 *eeprom_buff;
1058 	int first_word, last_word, eeprom_len;
1059 	int ret_val = 0;
1060 	u16 i;
1061 
1062 	if (eeprom->len == 0)
1063 		return -EINVAL;
1064 
1065 	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1066 
1067 	first_word = eeprom->offset >> 1;
1068 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
1069 	eeprom_len = last_word - first_word + 1;
1070 
1071 	eeprom_buff = kmalloc_array(eeprom_len, sizeof(u16), GFP_KERNEL);
1072 	if (!eeprom_buff)
1073 		return -ENOMEM;
1074 
1075 	ret_val = hw->eeprom.ops.read_buffer(hw, first_word, eeprom_len,
1076 					     eeprom_buff);
1077 
1078 	/* Device's eeprom is always little-endian, word addressable */
1079 	for (i = 0; i < eeprom_len; i++)
1080 		le16_to_cpus(&eeprom_buff[i]);
1081 
1082 	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
1083 	kfree(eeprom_buff);
1084 
1085 	return ret_val;
1086 }
1087 
ixgbe_set_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)1088 static int ixgbe_set_eeprom(struct net_device *netdev,
1089 			    struct ethtool_eeprom *eeprom, u8 *bytes)
1090 {
1091 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1092 	struct ixgbe_hw *hw = &adapter->hw;
1093 	u16 *eeprom_buff;
1094 	void *ptr;
1095 	int max_len, first_word, last_word, ret_val = 0;
1096 	u16 i;
1097 
1098 	if (eeprom->len == 0)
1099 		return -EINVAL;
1100 
1101 	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
1102 		return -EINVAL;
1103 
1104 	max_len = hw->eeprom.word_size * 2;
1105 
1106 	first_word = eeprom->offset >> 1;
1107 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
1108 	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
1109 	if (!eeprom_buff)
1110 		return -ENOMEM;
1111 
1112 	ptr = eeprom_buff;
1113 
1114 	if (eeprom->offset & 1) {
1115 		/*
1116 		 * need read/modify/write of first changed EEPROM word
1117 		 * only the second byte of the word is being modified
1118 		 */
1119 		ret_val = hw->eeprom.ops.read(hw, first_word, &eeprom_buff[0]);
1120 		if (ret_val)
1121 			goto err;
1122 
1123 		ptr++;
1124 	}
1125 	if ((eeprom->offset + eeprom->len) & 1) {
1126 		/*
1127 		 * need read/modify/write of last changed EEPROM word
1128 		 * only the first byte of the word is being modified
1129 		 */
1130 		ret_val = hw->eeprom.ops.read(hw, last_word,
1131 					  &eeprom_buff[last_word - first_word]);
1132 		if (ret_val)
1133 			goto err;
1134 	}
1135 
1136 	/* Device's eeprom is always little-endian, word addressable */
1137 	for (i = 0; i < last_word - first_word + 1; i++)
1138 		le16_to_cpus(&eeprom_buff[i]);
1139 
1140 	memcpy(ptr, bytes, eeprom->len);
1141 
1142 	for (i = 0; i < last_word - first_word + 1; i++)
1143 		cpu_to_le16s(&eeprom_buff[i]);
1144 
1145 	ret_val = hw->eeprom.ops.write_buffer(hw, first_word,
1146 					      last_word - first_word + 1,
1147 					      eeprom_buff);
1148 
1149 	/* Update the checksum */
1150 	if (ret_val == 0)
1151 		hw->eeprom.ops.update_checksum(hw);
1152 
1153 err:
1154 	kfree(eeprom_buff);
1155 	return ret_val;
1156 }
1157 
ixgbe_refresh_fw_version(struct ixgbe_adapter * adapter)1158 void ixgbe_refresh_fw_version(struct ixgbe_adapter *adapter)
1159 {
1160 	struct ixgbe_hw *hw = &adapter->hw;
1161 
1162 	ixgbe_get_flash_data(hw);
1163 	ixgbe_set_fw_version_e610(adapter);
1164 }
1165 
ixgbe_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)1166 static void ixgbe_get_drvinfo(struct net_device *netdev,
1167 			      struct ethtool_drvinfo *drvinfo)
1168 {
1169 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1170 
1171 	/* need to refresh info for e610 in case fw reloads in runtime */
1172 	if (adapter->hw.mac.type == ixgbe_mac_e610)
1173 		ixgbe_refresh_fw_version(adapter);
1174 
1175 	strscpy(drvinfo->driver, ixgbe_driver_name, sizeof(drvinfo->driver));
1176 
1177 	strscpy(drvinfo->fw_version, adapter->eeprom_id,
1178 		sizeof(drvinfo->fw_version));
1179 
1180 	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
1181 		sizeof(drvinfo->bus_info));
1182 
1183 	drvinfo->n_priv_flags = IXGBE_PRIV_FLAGS_STR_LEN;
1184 }
1185 
ixgbe_get_max_rxd(struct ixgbe_adapter * adapter)1186 static u32 ixgbe_get_max_rxd(struct ixgbe_adapter *adapter)
1187 {
1188 	switch (adapter->hw.mac.type) {
1189 	case ixgbe_mac_82598EB:
1190 		return IXGBE_MAX_RXD_82598;
1191 	case ixgbe_mac_82599EB:
1192 		return IXGBE_MAX_RXD_82599;
1193 	case ixgbe_mac_X540:
1194 		return IXGBE_MAX_RXD_X540;
1195 	case ixgbe_mac_X550:
1196 	case ixgbe_mac_X550EM_x:
1197 	case ixgbe_mac_x550em_a:
1198 		return IXGBE_MAX_RXD_X550;
1199 	default:
1200 		return IXGBE_MAX_RXD_82598;
1201 	}
1202 }
1203 
ixgbe_get_max_txd(struct ixgbe_adapter * adapter)1204 static u32 ixgbe_get_max_txd(struct ixgbe_adapter *adapter)
1205 {
1206 	switch (adapter->hw.mac.type) {
1207 	case ixgbe_mac_82598EB:
1208 		return IXGBE_MAX_TXD_82598;
1209 	case ixgbe_mac_82599EB:
1210 		return IXGBE_MAX_TXD_82599;
1211 	case ixgbe_mac_X540:
1212 		return IXGBE_MAX_TXD_X540;
1213 	case ixgbe_mac_X550:
1214 	case ixgbe_mac_X550EM_x:
1215 	case ixgbe_mac_x550em_a:
1216 		return IXGBE_MAX_TXD_X550;
1217 	default:
1218 		return IXGBE_MAX_TXD_82598;
1219 	}
1220 }
1221 
ixgbe_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)1222 static void ixgbe_get_ringparam(struct net_device *netdev,
1223 				struct ethtool_ringparam *ring,
1224 				struct kernel_ethtool_ringparam *kernel_ring,
1225 				struct netlink_ext_ack *extack)
1226 {
1227 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1228 	struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
1229 	struct ixgbe_ring *rx_ring = adapter->rx_ring[0];
1230 
1231 	ring->rx_max_pending = ixgbe_get_max_rxd(adapter);
1232 	ring->tx_max_pending = ixgbe_get_max_txd(adapter);
1233 	ring->rx_pending = rx_ring->count;
1234 	ring->tx_pending = tx_ring->count;
1235 }
1236 
ixgbe_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)1237 static int ixgbe_set_ringparam(struct net_device *netdev,
1238 			       struct ethtool_ringparam *ring,
1239 			       struct kernel_ethtool_ringparam *kernel_ring,
1240 			       struct netlink_ext_ack *extack)
1241 {
1242 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1243 	struct ixgbe_ring *temp_ring;
1244 	int i, j, err = 0;
1245 	u32 new_rx_count, new_tx_count;
1246 
1247 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1248 		return -EINVAL;
1249 
1250 	new_tx_count = clamp_t(u32, ring->tx_pending,
1251 			       IXGBE_MIN_TXD, ixgbe_get_max_txd(adapter));
1252 	new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
1253 
1254 	new_rx_count = clamp_t(u32, ring->rx_pending,
1255 			       IXGBE_MIN_RXD, ixgbe_get_max_rxd(adapter));
1256 	new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
1257 
1258 	if ((new_tx_count == adapter->tx_ring_count) &&
1259 	    (new_rx_count == adapter->rx_ring_count)) {
1260 		/* nothing to do */
1261 		return 0;
1262 	}
1263 
1264 	while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
1265 		usleep_range(1000, 2000);
1266 
1267 	if (!netif_running(adapter->netdev)) {
1268 		for (i = 0; i < adapter->num_tx_queues; i++)
1269 			adapter->tx_ring[i]->count = new_tx_count;
1270 		for (i = 0; i < adapter->num_xdp_queues; i++)
1271 			adapter->xdp_ring[i]->count = new_tx_count;
1272 		for (i = 0; i < adapter->num_rx_queues; i++)
1273 			adapter->rx_ring[i]->count = new_rx_count;
1274 		adapter->tx_ring_count = new_tx_count;
1275 		adapter->xdp_ring_count = new_tx_count;
1276 		adapter->rx_ring_count = new_rx_count;
1277 		goto clear_reset;
1278 	}
1279 
1280 	/* allocate temporary buffer to store rings in */
1281 	i = max_t(int, adapter->num_tx_queues + adapter->num_xdp_queues,
1282 		  adapter->num_rx_queues);
1283 	temp_ring = vmalloc_array(i, sizeof(struct ixgbe_ring));
1284 
1285 	if (!temp_ring) {
1286 		err = -ENOMEM;
1287 		goto clear_reset;
1288 	}
1289 
1290 	ixgbe_down(adapter);
1291 
1292 	/*
1293 	 * Setup new Tx resources and free the old Tx resources in that order.
1294 	 * We can then assign the new resources to the rings via a memcpy.
1295 	 * The advantage to this approach is that we are guaranteed to still
1296 	 * have resources even in the case of an allocation failure.
1297 	 */
1298 	if (new_tx_count != adapter->tx_ring_count) {
1299 		for (i = 0; i < adapter->num_tx_queues; i++) {
1300 			memcpy(&temp_ring[i], adapter->tx_ring[i],
1301 			       sizeof(struct ixgbe_ring));
1302 
1303 			temp_ring[i].count = new_tx_count;
1304 			err = ixgbe_setup_tx_resources(&temp_ring[i]);
1305 			if (err) {
1306 				while (i) {
1307 					i--;
1308 					ixgbe_free_tx_resources(&temp_ring[i]);
1309 				}
1310 				goto err_setup;
1311 			}
1312 		}
1313 
1314 		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1315 			memcpy(&temp_ring[i], adapter->xdp_ring[j],
1316 			       sizeof(struct ixgbe_ring));
1317 
1318 			temp_ring[i].count = new_tx_count;
1319 			err = ixgbe_setup_tx_resources(&temp_ring[i]);
1320 			if (err) {
1321 				while (i) {
1322 					i--;
1323 					ixgbe_free_tx_resources(&temp_ring[i]);
1324 				}
1325 				goto err_setup;
1326 			}
1327 		}
1328 
1329 		for (i = 0; i < adapter->num_tx_queues; i++) {
1330 			ixgbe_free_tx_resources(adapter->tx_ring[i]);
1331 
1332 			memcpy(adapter->tx_ring[i], &temp_ring[i],
1333 			       sizeof(struct ixgbe_ring));
1334 		}
1335 		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1336 			ixgbe_free_tx_resources(adapter->xdp_ring[j]);
1337 
1338 			memcpy(adapter->xdp_ring[j], &temp_ring[i],
1339 			       sizeof(struct ixgbe_ring));
1340 		}
1341 
1342 		adapter->tx_ring_count = new_tx_count;
1343 	}
1344 
1345 	/* Repeat the process for the Rx rings if needed */
1346 	if (new_rx_count != adapter->rx_ring_count) {
1347 		for (i = 0; i < adapter->num_rx_queues; i++) {
1348 			memcpy(&temp_ring[i], adapter->rx_ring[i],
1349 			       sizeof(struct ixgbe_ring));
1350 
1351 			/* Clear copied XDP RX-queue info */
1352 			memset(&temp_ring[i].xdp_rxq, 0,
1353 			       sizeof(temp_ring[i].xdp_rxq));
1354 
1355 			temp_ring[i].count = new_rx_count;
1356 			err = ixgbe_setup_rx_resources(adapter, &temp_ring[i]);
1357 			if (err) {
1358 				while (i) {
1359 					i--;
1360 					ixgbe_free_rx_resources(&temp_ring[i]);
1361 				}
1362 				goto err_setup;
1363 			}
1364 
1365 		}
1366 
1367 		for (i = 0; i < adapter->num_rx_queues; i++) {
1368 			ixgbe_free_rx_resources(adapter->rx_ring[i]);
1369 
1370 			memcpy(adapter->rx_ring[i], &temp_ring[i],
1371 			       sizeof(struct ixgbe_ring));
1372 		}
1373 
1374 		adapter->rx_ring_count = new_rx_count;
1375 	}
1376 
1377 err_setup:
1378 	ixgbe_up(adapter);
1379 	vfree(temp_ring);
1380 clear_reset:
1381 	clear_bit(__IXGBE_RESETTING, &adapter->state);
1382 	return err;
1383 }
1384 
ixgbe_get_sset_count(struct net_device * netdev,int sset)1385 static int ixgbe_get_sset_count(struct net_device *netdev, int sset)
1386 {
1387 	switch (sset) {
1388 	case ETH_SS_TEST:
1389 		return IXGBE_TEST_LEN;
1390 	case ETH_SS_STATS:
1391 		return IXGBE_STATS_LEN;
1392 	case ETH_SS_PRIV_FLAGS:
1393 		return IXGBE_PRIV_FLAGS_STR_LEN;
1394 	default:
1395 		return -EOPNOTSUPP;
1396 	}
1397 }
1398 
ixgbe_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)1399 static void ixgbe_get_ethtool_stats(struct net_device *netdev,
1400 				    struct ethtool_stats *stats, u64 *data)
1401 {
1402 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1403 	struct rtnl_link_stats64 temp;
1404 	const struct rtnl_link_stats64 *net_stats;
1405 	unsigned int start;
1406 	struct ixgbe_ring *ring;
1407 	int i, j;
1408 	char *p = NULL;
1409 
1410 	ixgbe_update_stats(adapter);
1411 	net_stats = dev_get_stats(netdev, &temp);
1412 	for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1413 		switch (ixgbe_gstrings_stats[i].type) {
1414 		case NETDEV_STATS:
1415 			p = (char *) net_stats +
1416 					ixgbe_gstrings_stats[i].stat_offset;
1417 			break;
1418 		case IXGBE_STATS:
1419 			p = (char *) adapter +
1420 					ixgbe_gstrings_stats[i].stat_offset;
1421 			break;
1422 		default:
1423 			data[i] = 0;
1424 			continue;
1425 		}
1426 
1427 		data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
1428 			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1429 	}
1430 	for (j = 0; j < netdev->num_tx_queues; j++) {
1431 		ring = adapter->tx_ring[j];
1432 		if (!ring) {
1433 			data[i] = 0;
1434 			data[i+1] = 0;
1435 			i += 2;
1436 			continue;
1437 		}
1438 
1439 		do {
1440 			start = u64_stats_fetch_begin(&ring->syncp);
1441 			data[i]   = ring->stats.packets;
1442 			data[i+1] = ring->stats.bytes;
1443 		} while (u64_stats_fetch_retry(&ring->syncp, start));
1444 		i += 2;
1445 	}
1446 	for (j = 0; j < IXGBE_NUM_RX_QUEUES; j++) {
1447 		ring = adapter->rx_ring[j];
1448 		if (!ring) {
1449 			data[i] = 0;
1450 			data[i+1] = 0;
1451 			i += 2;
1452 			continue;
1453 		}
1454 
1455 		do {
1456 			start = u64_stats_fetch_begin(&ring->syncp);
1457 			data[i]   = ring->stats.packets;
1458 			data[i+1] = ring->stats.bytes;
1459 		} while (u64_stats_fetch_retry(&ring->syncp, start));
1460 		i += 2;
1461 	}
1462 
1463 	for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1464 		data[i++] = adapter->stats.pxontxc[j];
1465 		data[i++] = adapter->stats.pxofftxc[j];
1466 	}
1467 	for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1468 		data[i++] = adapter->stats.pxonrxc[j];
1469 		data[i++] = adapter->stats.pxoffrxc[j];
1470 	}
1471 }
1472 
ixgbe_get_strings(struct net_device * netdev,u32 stringset,u8 * data)1473 static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
1474 			      u8 *data)
1475 {
1476 	unsigned int i;
1477 	u8 *p = data;
1478 
1479 	switch (stringset) {
1480 	case ETH_SS_TEST:
1481 		for (i = 0; i < IXGBE_TEST_LEN; i++)
1482 			ethtool_puts(&p, ixgbe_gstrings_test[i]);
1483 		break;
1484 	case ETH_SS_STATS:
1485 		for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++)
1486 			ethtool_puts(&p, ixgbe_gstrings_stats[i].stat_string);
1487 		for (i = 0; i < netdev->num_tx_queues; i++) {
1488 			ethtool_sprintf(&p, "tx_queue_%u_packets", i);
1489 			ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
1490 		}
1491 		for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
1492 			ethtool_sprintf(&p, "rx_queue_%u_packets", i);
1493 			ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
1494 		}
1495 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1496 			ethtool_sprintf(&p, "tx_pb_%u_pxon", i);
1497 			ethtool_sprintf(&p, "tx_pb_%u_pxoff", i);
1498 		}
1499 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1500 			ethtool_sprintf(&p, "rx_pb_%u_pxon", i);
1501 			ethtool_sprintf(&p, "rx_pb_%u_pxoff", i);
1502 		}
1503 		/* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */
1504 		break;
1505 	case ETH_SS_PRIV_FLAGS:
1506 		memcpy(data, ixgbe_priv_flags_strings,
1507 		       IXGBE_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
1508 	}
1509 }
1510 
ixgbe_link_test(struct ixgbe_adapter * adapter,u64 * data)1511 static int ixgbe_link_test(struct ixgbe_adapter *adapter, u64 *data)
1512 {
1513 	struct ixgbe_hw *hw = &adapter->hw;
1514 	bool link_up;
1515 	u32 link_speed = 0;
1516 
1517 	if (ixgbe_removed(hw->hw_addr)) {
1518 		*data = 1;
1519 		return 1;
1520 	}
1521 	*data = 0;
1522 
1523 	hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
1524 	if (link_up)
1525 		return *data;
1526 	else
1527 		*data = 1;
1528 	return *data;
1529 }
1530 
1531 /* ethtool register test data */
1532 struct ixgbe_reg_test {
1533 	u16 reg;
1534 	u8  array_len;
1535 	u8  test_type;
1536 	u32 mask;
1537 	u32 write;
1538 };
1539 
1540 /* In the hardware, registers are laid out either singly, in arrays
1541  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
1542  * most tests take place on arrays or single registers (handled
1543  * as a single-element array) and special-case the tables.
1544  * Table tests are always pattern tests.
1545  *
1546  * We also make provision for some required setup steps by specifying
1547  * registers to be written without any read-back testing.
1548  */
1549 
1550 #define PATTERN_TEST	1
1551 #define SET_READ_TEST	2
1552 #define WRITE_NO_TEST	3
1553 #define TABLE32_TEST	4
1554 #define TABLE64_TEST_LO	5
1555 #define TABLE64_TEST_HI	6
1556 
1557 /* default 82599 register test */
1558 static const struct ixgbe_reg_test reg_test_82599[] = {
1559 	{ IXGBE_FCRTL_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1560 	{ IXGBE_FCRTH_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1561 	{ IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1562 	{ IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1563 	{ IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
1564 	{ IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1565 	{ IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1566 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1567 	{ IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1568 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1569 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1570 	{ IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1571 	{ IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1572 	{ IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1573 	{ IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
1574 	{ IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000001, 0x00000001 },
1575 	{ IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1576 	{ IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x8001FFFF, 0x800CFFFF },
1577 	{ IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1578 	{ .reg = 0 }
1579 };
1580 
1581 /* default 82598 register test */
1582 static const struct ixgbe_reg_test reg_test_82598[] = {
1583 	{ IXGBE_FCRTL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1584 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1585 	{ IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1586 	{ IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1587 	{ IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1588 	{ IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1589 	{ IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1590 	/* Enable all four RX queues before testing. */
1591 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1592 	/* RDH is read-only for 82598, only test RDT. */
1593 	{ IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1594 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1595 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1596 	{ IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1597 	{ IXGBE_TIPG, 1, PATTERN_TEST, 0x000000FF, 0x000000FF },
1598 	{ IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1599 	{ IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1600 	{ IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1601 	{ IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000003, 0x00000003 },
1602 	{ IXGBE_DTXCTL, 1, SET_READ_TEST, 0x00000005, 0x00000005 },
1603 	{ IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1604 	{ IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x800CFFFF, 0x800CFFFF },
1605 	{ IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1606 	{ .reg = 0 }
1607 };
1608 
reg_pattern_test(struct ixgbe_adapter * adapter,u64 * data,int reg,u32 mask,u32 write)1609 static bool reg_pattern_test(struct ixgbe_adapter *adapter, u64 *data, int reg,
1610 			     u32 mask, u32 write)
1611 {
1612 	u32 pat, val, before;
1613 	static const u32 test_pattern[] = {
1614 		0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
1615 
1616 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1617 		*data = 1;
1618 		return true;
1619 	}
1620 	for (pat = 0; pat < ARRAY_SIZE(test_pattern); pat++) {
1621 		before = ixgbe_read_reg(&adapter->hw, reg);
1622 		ixgbe_write_reg(&adapter->hw, reg, test_pattern[pat] & write);
1623 		val = ixgbe_read_reg(&adapter->hw, reg);
1624 		if (val != (test_pattern[pat] & write & mask)) {
1625 			e_err(drv, "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
1626 			      reg, val, (test_pattern[pat] & write & mask));
1627 			*data = reg;
1628 			ixgbe_write_reg(&adapter->hw, reg, before);
1629 			return true;
1630 		}
1631 		ixgbe_write_reg(&adapter->hw, reg, before);
1632 	}
1633 	return false;
1634 }
1635 
reg_set_and_check(struct ixgbe_adapter * adapter,u64 * data,int reg,u32 mask,u32 write)1636 static bool reg_set_and_check(struct ixgbe_adapter *adapter, u64 *data, int reg,
1637 			      u32 mask, u32 write)
1638 {
1639 	u32 val, before;
1640 
1641 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1642 		*data = 1;
1643 		return true;
1644 	}
1645 	before = ixgbe_read_reg(&adapter->hw, reg);
1646 	ixgbe_write_reg(&adapter->hw, reg, write & mask);
1647 	val = ixgbe_read_reg(&adapter->hw, reg);
1648 	if ((write & mask) != (val & mask)) {
1649 		e_err(drv, "set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
1650 		      reg, (val & mask), (write & mask));
1651 		*data = reg;
1652 		ixgbe_write_reg(&adapter->hw, reg, before);
1653 		return true;
1654 	}
1655 	ixgbe_write_reg(&adapter->hw, reg, before);
1656 	return false;
1657 }
1658 
ixgbe_reg_test(struct ixgbe_adapter * adapter,u64 * data)1659 static int ixgbe_reg_test(struct ixgbe_adapter *adapter, u64 *data)
1660 {
1661 	const struct ixgbe_reg_test *test;
1662 	u32 value, before, after;
1663 	u32 i, toggle;
1664 
1665 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1666 		e_err(drv, "Adapter removed - register test blocked\n");
1667 		*data = 1;
1668 		return 1;
1669 	}
1670 	switch (adapter->hw.mac.type) {
1671 	case ixgbe_mac_82598EB:
1672 		toggle = 0x7FFFF3FF;
1673 		test = reg_test_82598;
1674 		break;
1675 	case ixgbe_mac_82599EB:
1676 	case ixgbe_mac_X540:
1677 	case ixgbe_mac_X550:
1678 	case ixgbe_mac_X550EM_x:
1679 	case ixgbe_mac_x550em_a:
1680 	case ixgbe_mac_e610:
1681 		toggle = 0x7FFFF30F;
1682 		test = reg_test_82599;
1683 		break;
1684 	default:
1685 		*data = 1;
1686 		return 1;
1687 	}
1688 
1689 	/*
1690 	 * Because the status register is such a special case,
1691 	 * we handle it separately from the rest of the register
1692 	 * tests.  Some bits are read-only, some toggle, and some
1693 	 * are writeable on newer MACs.
1694 	 */
1695 	before = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS);
1696 	value = (ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle);
1697 	ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, toggle);
1698 	after = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle;
1699 	if (value != after) {
1700 		e_err(drv, "failed STATUS register test got: 0x%08X expected: 0x%08X\n",
1701 		      after, value);
1702 		*data = 1;
1703 		return 1;
1704 	}
1705 	/* restore previous status */
1706 	ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, before);
1707 
1708 	/*
1709 	 * Perform the remainder of the register test, looping through
1710 	 * the test table until we either fail or reach the null entry.
1711 	 */
1712 	while (test->reg) {
1713 		for (i = 0; i < test->array_len; i++) {
1714 			bool b = false;
1715 
1716 			switch (test->test_type) {
1717 			case PATTERN_TEST:
1718 				b = reg_pattern_test(adapter, data,
1719 						     test->reg + (i * 0x40),
1720 						     test->mask,
1721 						     test->write);
1722 				break;
1723 			case SET_READ_TEST:
1724 				b = reg_set_and_check(adapter, data,
1725 						      test->reg + (i * 0x40),
1726 						      test->mask,
1727 						      test->write);
1728 				break;
1729 			case WRITE_NO_TEST:
1730 				ixgbe_write_reg(&adapter->hw,
1731 						test->reg + (i * 0x40),
1732 						test->write);
1733 				break;
1734 			case TABLE32_TEST:
1735 				b = reg_pattern_test(adapter, data,
1736 						     test->reg + (i * 4),
1737 						     test->mask,
1738 						     test->write);
1739 				break;
1740 			case TABLE64_TEST_LO:
1741 				b = reg_pattern_test(adapter, data,
1742 						     test->reg + (i * 8),
1743 						     test->mask,
1744 						     test->write);
1745 				break;
1746 			case TABLE64_TEST_HI:
1747 				b = reg_pattern_test(adapter, data,
1748 						     (test->reg + 4) + (i * 8),
1749 						     test->mask,
1750 						     test->write);
1751 				break;
1752 			}
1753 			if (b)
1754 				return 1;
1755 		}
1756 		test++;
1757 	}
1758 
1759 	*data = 0;
1760 	return 0;
1761 }
1762 
ixgbe_eeprom_test(struct ixgbe_adapter * adapter,u64 * data)1763 static int ixgbe_eeprom_test(struct ixgbe_adapter *adapter, u64 *data)
1764 {
1765 	struct ixgbe_hw *hw = &adapter->hw;
1766 	if (hw->eeprom.ops.validate_checksum(hw, NULL))
1767 		*data = 1;
1768 	else
1769 		*data = 0;
1770 	return *data;
1771 }
1772 
ixgbe_test_intr(int irq,void * data)1773 static irqreturn_t ixgbe_test_intr(int irq, void *data)
1774 {
1775 	struct net_device *netdev = (struct net_device *) data;
1776 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
1777 
1778 	adapter->test_icr |= IXGBE_READ_REG(&adapter->hw, IXGBE_EICR);
1779 
1780 	return IRQ_HANDLED;
1781 }
1782 
ixgbe_intr_test(struct ixgbe_adapter * adapter,u64 * data)1783 static int ixgbe_intr_test(struct ixgbe_adapter *adapter, u64 *data)
1784 {
1785 	struct net_device *netdev = adapter->netdev;
1786 	u32 mask, i = 0, shared_int = true;
1787 	u32 irq = adapter->pdev->irq;
1788 
1789 	*data = 0;
1790 
1791 	/* Hook up test interrupt handler just for this test */
1792 	if (adapter->msix_entries) {
1793 		/* NOTE: we don't test MSI-X interrupts here, yet */
1794 		return 0;
1795 	} else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
1796 		shared_int = false;
1797 		if (request_irq(irq, ixgbe_test_intr, 0, netdev->name,
1798 				netdev)) {
1799 			*data = 1;
1800 			return -1;
1801 		}
1802 	} else if (!request_irq(irq, ixgbe_test_intr, IRQF_PROBE_SHARED,
1803 				netdev->name, netdev)) {
1804 		shared_int = false;
1805 	} else if (request_irq(irq, ixgbe_test_intr, IRQF_SHARED,
1806 			       netdev->name, netdev)) {
1807 		*data = 1;
1808 		return -1;
1809 	}
1810 	e_info(hw, "testing %s interrupt\n", shared_int ?
1811 	       "shared" : "unshared");
1812 
1813 	/* Disable all the interrupts */
1814 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1815 	IXGBE_WRITE_FLUSH(&adapter->hw);
1816 	usleep_range(10000, 20000);
1817 
1818 	/* Test each interrupt */
1819 	for (; i < 10; i++) {
1820 		/* Interrupt to test */
1821 		mask = BIT(i);
1822 
1823 		if (!shared_int) {
1824 			/*
1825 			 * Disable the interrupts to be reported in
1826 			 * the cause register and then force the same
1827 			 * interrupt and see if one gets posted.  If
1828 			 * an interrupt was posted to the bus, the
1829 			 * test failed.
1830 			 */
1831 			adapter->test_icr = 0;
1832 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1833 					~mask & 0x00007FFF);
1834 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1835 					~mask & 0x00007FFF);
1836 			IXGBE_WRITE_FLUSH(&adapter->hw);
1837 			usleep_range(10000, 20000);
1838 
1839 			if (adapter->test_icr & mask) {
1840 				*data = 3;
1841 				break;
1842 			}
1843 		}
1844 
1845 		/*
1846 		 * Enable the interrupt to be reported in the cause
1847 		 * register and then force the same interrupt and see
1848 		 * if one gets posted.  If an interrupt was not posted
1849 		 * to the bus, the test failed.
1850 		 */
1851 		adapter->test_icr = 0;
1852 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
1853 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
1854 		IXGBE_WRITE_FLUSH(&adapter->hw);
1855 		usleep_range(10000, 20000);
1856 
1857 		if (!(adapter->test_icr & mask)) {
1858 			*data = 4;
1859 			break;
1860 		}
1861 
1862 		if (!shared_int) {
1863 			/*
1864 			 * Disable the other interrupts to be reported in
1865 			 * the cause register and then force the other
1866 			 * interrupts and see if any get posted.  If
1867 			 * an interrupt was posted to the bus, the
1868 			 * test failed.
1869 			 */
1870 			adapter->test_icr = 0;
1871 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1872 					~mask & 0x00007FFF);
1873 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1874 					~mask & 0x00007FFF);
1875 			IXGBE_WRITE_FLUSH(&adapter->hw);
1876 			usleep_range(10000, 20000);
1877 
1878 			if (adapter->test_icr) {
1879 				*data = 5;
1880 				break;
1881 			}
1882 		}
1883 	}
1884 
1885 	/* Disable all the interrupts */
1886 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1887 	IXGBE_WRITE_FLUSH(&adapter->hw);
1888 	usleep_range(10000, 20000);
1889 
1890 	/* Unhook test interrupt handler */
1891 	free_irq(irq, netdev);
1892 
1893 	return *data;
1894 }
1895 
ixgbe_free_desc_rings(struct ixgbe_adapter * adapter)1896 static void ixgbe_free_desc_rings(struct ixgbe_adapter *adapter)
1897 {
1898 	/* Shut down the DMA engines now so they can be reinitialized later,
1899 	 * since the test rings and normally used rings should overlap on
1900 	 * queue 0 we can just use the standard disable Rx/Tx calls and they
1901 	 * will take care of disabling the test rings for us.
1902 	 */
1903 
1904 	/* first Rx */
1905 	ixgbe_disable_rx(adapter);
1906 
1907 	/* now Tx */
1908 	ixgbe_disable_tx(adapter);
1909 
1910 	ixgbe_reset(adapter);
1911 
1912 	ixgbe_free_tx_resources(&adapter->test_tx_ring);
1913 	ixgbe_free_rx_resources(&adapter->test_rx_ring);
1914 }
1915 
ixgbe_setup_desc_rings(struct ixgbe_adapter * adapter)1916 static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
1917 {
1918 	struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1919 	struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1920 	struct ixgbe_hw *hw = &adapter->hw;
1921 	u32 rctl, reg_data;
1922 	int ret_val;
1923 	int err;
1924 
1925 	/* Setup Tx descriptor ring and Tx buffers */
1926 	tx_ring->count = IXGBE_DEFAULT_TXD;
1927 	tx_ring->queue_index = 0;
1928 	tx_ring->dev = &adapter->pdev->dev;
1929 	tx_ring->netdev = adapter->netdev;
1930 	tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx;
1931 
1932 	err = ixgbe_setup_tx_resources(tx_ring);
1933 	if (err)
1934 		return 1;
1935 
1936 	switch (adapter->hw.mac.type) {
1937 	case ixgbe_mac_82599EB:
1938 	case ixgbe_mac_X540:
1939 	case ixgbe_mac_X550:
1940 	case ixgbe_mac_X550EM_x:
1941 	case ixgbe_mac_x550em_a:
1942 	case ixgbe_mac_e610:
1943 		reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_DMATXCTL);
1944 		reg_data |= IXGBE_DMATXCTL_TE;
1945 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_DMATXCTL, reg_data);
1946 		break;
1947 	default:
1948 		break;
1949 	}
1950 
1951 	ixgbe_configure_tx_ring(adapter, tx_ring);
1952 
1953 	/* Setup Rx Descriptor ring and Rx buffers */
1954 	rx_ring->count = IXGBE_DEFAULT_RXD;
1955 	rx_ring->queue_index = 0;
1956 	rx_ring->dev = &adapter->pdev->dev;
1957 	rx_ring->netdev = adapter->netdev;
1958 	rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;
1959 
1960 	err = ixgbe_setup_rx_resources(adapter, rx_ring);
1961 	if (err) {
1962 		ret_val = 4;
1963 		goto err_nomem;
1964 	}
1965 
1966 	hw->mac.ops.disable_rx(hw);
1967 
1968 	ixgbe_configure_rx_ring(adapter, rx_ring);
1969 
1970 	rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXCTRL);
1971 	rctl |= IXGBE_RXCTRL_DMBYPS;
1972 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);
1973 
1974 	hw->mac.ops.enable_rx(hw);
1975 
1976 	return 0;
1977 
1978 err_nomem:
1979 	ixgbe_free_desc_rings(adapter);
1980 	return ret_val;
1981 }
1982 
ixgbe_setup_loopback_test(struct ixgbe_adapter * adapter)1983 static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
1984 {
1985 	struct ixgbe_hw *hw = &adapter->hw;
1986 	u32 reg_data;
1987 
1988 
1989 	/* Setup MAC loopback */
1990 	reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
1991 	reg_data |= IXGBE_HLREG0_LPBK;
1992 	IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);
1993 
1994 	reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1995 	reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
1996 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);
1997 
1998 	/* X540 and X550 needs to set the MACC.FLU bit to force link up */
1999 	switch (adapter->hw.mac.type) {
2000 	case ixgbe_mac_X540:
2001 	case ixgbe_mac_X550:
2002 	case ixgbe_mac_X550EM_x:
2003 	case ixgbe_mac_x550em_a:
2004 	case ixgbe_mac_e610:
2005 		reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
2006 		reg_data |= IXGBE_MACC_FLU;
2007 		IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
2008 		break;
2009 	default:
2010 		if (hw->mac.orig_autoc) {
2011 			reg_data = hw->mac.orig_autoc | IXGBE_AUTOC_FLU;
2012 			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
2013 		} else {
2014 			return 10;
2015 		}
2016 	}
2017 	IXGBE_WRITE_FLUSH(hw);
2018 	usleep_range(10000, 20000);
2019 
2020 	/* Disable Atlas Tx lanes; re-enabled in reset path */
2021 	if (hw->mac.type == ixgbe_mac_82598EB) {
2022 		u8 atlas;
2023 
2024 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &atlas);
2025 		atlas |= IXGBE_ATLAS_PDN_TX_REG_EN;
2026 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, atlas);
2027 
2028 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &atlas);
2029 		atlas |= IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
2030 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, atlas);
2031 
2032 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &atlas);
2033 		atlas |= IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
2034 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, atlas);
2035 
2036 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &atlas);
2037 		atlas |= IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
2038 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, atlas);
2039 	}
2040 
2041 	return 0;
2042 }
2043 
ixgbe_loopback_cleanup(struct ixgbe_adapter * adapter)2044 static void ixgbe_loopback_cleanup(struct ixgbe_adapter *adapter)
2045 {
2046 	u32 reg_data;
2047 
2048 	reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
2049 	reg_data &= ~IXGBE_HLREG0_LPBK;
2050 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
2051 }
2052 
ixgbe_create_lbtest_frame(struct sk_buff * skb,unsigned int frame_size)2053 static void ixgbe_create_lbtest_frame(struct sk_buff *skb,
2054 				      unsigned int frame_size)
2055 {
2056 	memset(skb->data, 0xFF, frame_size);
2057 	frame_size >>= 1;
2058 	memset(&skb->data[frame_size], 0xAA, frame_size / 2 - 1);
2059 	skb->data[frame_size + 10] = 0xBE;
2060 	skb->data[frame_size + 12] = 0xAF;
2061 }
2062 
ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer * rx_buffer,unsigned int frame_size)2063 static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer,
2064 				     unsigned int frame_size)
2065 {
2066 	unsigned char *data;
2067 
2068 	frame_size >>= 1;
2069 
2070 	data = page_address(rx_buffer->page) + rx_buffer->page_offset;
2071 
2072 	return data[3] == 0xFF && data[frame_size + 10] == 0xBE &&
2073 		data[frame_size + 12] == 0xAF;
2074 }
2075 
ixgbe_clean_test_rings(struct ixgbe_ring * rx_ring,struct ixgbe_ring * tx_ring,unsigned int size)2076 static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
2077 				  struct ixgbe_ring *tx_ring,
2078 				  unsigned int size)
2079 {
2080 	union ixgbe_adv_rx_desc *rx_desc;
2081 	u16 rx_ntc, tx_ntc, count = 0;
2082 
2083 	/* initialize next to clean and descriptor values */
2084 	rx_ntc = rx_ring->next_to_clean;
2085 	tx_ntc = tx_ring->next_to_clean;
2086 	rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
2087 
2088 	while (tx_ntc != tx_ring->next_to_use) {
2089 		union ixgbe_adv_tx_desc *tx_desc;
2090 		struct ixgbe_tx_buffer *tx_buffer;
2091 
2092 		tx_desc = IXGBE_TX_DESC(tx_ring, tx_ntc);
2093 
2094 		/* if DD is not set transmit has not completed */
2095 		if (!(tx_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
2096 			return count;
2097 
2098 		/* unmap buffer on Tx side */
2099 		tx_buffer = &tx_ring->tx_buffer_info[tx_ntc];
2100 
2101 		/* Free all the Tx ring sk_buffs */
2102 		dev_kfree_skb_any(tx_buffer->skb);
2103 
2104 		/* unmap skb header data */
2105 		dma_unmap_single(tx_ring->dev,
2106 				 dma_unmap_addr(tx_buffer, dma),
2107 				 dma_unmap_len(tx_buffer, len),
2108 				 DMA_TO_DEVICE);
2109 		dma_unmap_len_set(tx_buffer, len, 0);
2110 
2111 		/* increment Tx next to clean counter */
2112 		tx_ntc++;
2113 		if (tx_ntc == tx_ring->count)
2114 			tx_ntc = 0;
2115 	}
2116 
2117 	while (rx_desc->wb.upper.length) {
2118 		struct ixgbe_rx_buffer *rx_buffer;
2119 
2120 		/* check Rx buffer */
2121 		rx_buffer = &rx_ring->rx_buffer_info[rx_ntc];
2122 
2123 		/* sync Rx buffer for CPU read */
2124 		dma_sync_single_for_cpu(rx_ring->dev,
2125 					rx_buffer->dma,
2126 					ixgbe_rx_bufsz(rx_ring),
2127 					DMA_FROM_DEVICE);
2128 
2129 		/* verify contents of skb */
2130 		if (ixgbe_check_lbtest_frame(rx_buffer, size))
2131 			count++;
2132 		else
2133 			break;
2134 
2135 		/* sync Rx buffer for device write */
2136 		dma_sync_single_for_device(rx_ring->dev,
2137 					   rx_buffer->dma,
2138 					   ixgbe_rx_bufsz(rx_ring),
2139 					   DMA_FROM_DEVICE);
2140 
2141 		/* increment Rx next to clean counter */
2142 		rx_ntc++;
2143 		if (rx_ntc == rx_ring->count)
2144 			rx_ntc = 0;
2145 
2146 		/* fetch next descriptor */
2147 		rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
2148 	}
2149 
2150 	netdev_tx_reset_queue(txring_txq(tx_ring));
2151 
2152 	/* re-map buffers to ring, store next to clean values */
2153 	ixgbe_alloc_rx_buffers(rx_ring, count);
2154 	rx_ring->next_to_clean = rx_ntc;
2155 	tx_ring->next_to_clean = tx_ntc;
2156 
2157 	return count;
2158 }
2159 
ixgbe_run_loopback_test(struct ixgbe_adapter * adapter)2160 static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter)
2161 {
2162 	struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
2163 	struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
2164 	int i, j, lc, good_cnt, ret_val = 0;
2165 	unsigned int size = 1024;
2166 	netdev_tx_t tx_ret_val;
2167 	struct sk_buff *skb;
2168 	u32 flags_orig = adapter->flags;
2169 
2170 	/* DCB can modify the frames on Tx */
2171 	adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
2172 
2173 	/* allocate test skb */
2174 	skb = alloc_skb(size, GFP_KERNEL);
2175 	if (!skb)
2176 		return 11;
2177 
2178 	/* place data into test skb */
2179 	ixgbe_create_lbtest_frame(skb, size);
2180 	skb_put(skb, size);
2181 
2182 	/*
2183 	 * Calculate the loop count based on the largest descriptor ring
2184 	 * The idea is to wrap the largest ring a number of times using 64
2185 	 * send/receive pairs during each loop
2186 	 */
2187 
2188 	if (rx_ring->count <= tx_ring->count)
2189 		lc = ((tx_ring->count / 64) * 2) + 1;
2190 	else
2191 		lc = ((rx_ring->count / 64) * 2) + 1;
2192 
2193 	for (j = 0; j <= lc; j++) {
2194 		/* reset count of good packets */
2195 		good_cnt = 0;
2196 
2197 		/* place 64 packets on the transmit queue*/
2198 		for (i = 0; i < 64; i++) {
2199 			skb_get(skb);
2200 			tx_ret_val = ixgbe_xmit_frame_ring(skb,
2201 							   adapter,
2202 							   tx_ring);
2203 			if (tx_ret_val == NETDEV_TX_OK)
2204 				good_cnt++;
2205 		}
2206 
2207 		if (good_cnt != 64) {
2208 			ret_val = 12;
2209 			break;
2210 		}
2211 
2212 		/* allow 200 milliseconds for packets to go from Tx to Rx */
2213 		msleep(200);
2214 
2215 		good_cnt = ixgbe_clean_test_rings(rx_ring, tx_ring, size);
2216 		if (good_cnt != 64) {
2217 			ret_val = 13;
2218 			break;
2219 		}
2220 	}
2221 
2222 	/* free the original skb */
2223 	kfree_skb(skb);
2224 	adapter->flags = flags_orig;
2225 
2226 	return ret_val;
2227 }
2228 
ixgbe_loopback_test(struct ixgbe_adapter * adapter,u64 * data)2229 static int ixgbe_loopback_test(struct ixgbe_adapter *adapter, u64 *data)
2230 {
2231 	*data = ixgbe_setup_desc_rings(adapter);
2232 	if (*data)
2233 		goto out;
2234 	*data = ixgbe_setup_loopback_test(adapter);
2235 	if (*data)
2236 		goto err_loopback;
2237 	*data = ixgbe_run_loopback_test(adapter);
2238 	ixgbe_loopback_cleanup(adapter);
2239 
2240 err_loopback:
2241 	ixgbe_free_desc_rings(adapter);
2242 out:
2243 	return *data;
2244 }
2245 
ixgbe_diag_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)2246 static void ixgbe_diag_test(struct net_device *netdev,
2247 			    struct ethtool_test *eth_test, u64 *data)
2248 {
2249 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2250 	bool if_running = netif_running(netdev);
2251 
2252 	if (ixgbe_removed(adapter->hw.hw_addr)) {
2253 		e_err(hw, "Adapter removed - test blocked\n");
2254 		data[0] = 1;
2255 		data[1] = 1;
2256 		data[2] = 1;
2257 		data[3] = 1;
2258 		data[4] = 1;
2259 		eth_test->flags |= ETH_TEST_FL_FAILED;
2260 		return;
2261 	}
2262 	set_bit(__IXGBE_TESTING, &adapter->state);
2263 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2264 		struct ixgbe_hw *hw = &adapter->hw;
2265 
2266 		if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
2267 			int i;
2268 			for (i = 0; i < adapter->num_vfs; i++) {
2269 				if (adapter->vfinfo[i].clear_to_send) {
2270 					netdev_warn(netdev, "offline diagnostic is not supported when VFs are present\n");
2271 					data[0] = 1;
2272 					data[1] = 1;
2273 					data[2] = 1;
2274 					data[3] = 1;
2275 					data[4] = 1;
2276 					eth_test->flags |= ETH_TEST_FL_FAILED;
2277 					clear_bit(__IXGBE_TESTING,
2278 						  &adapter->state);
2279 					return;
2280 				}
2281 			}
2282 		}
2283 
2284 		/* Offline tests */
2285 		e_info(hw, "offline testing starting\n");
2286 
2287 		/* Link test performed before hardware reset so autoneg doesn't
2288 		 * interfere with test result
2289 		 */
2290 		if (ixgbe_link_test(adapter, &data[4]))
2291 			eth_test->flags |= ETH_TEST_FL_FAILED;
2292 
2293 		if (if_running)
2294 			/* indicate we're in test mode */
2295 			ixgbe_close(netdev);
2296 		else
2297 			ixgbe_reset(adapter);
2298 
2299 		e_info(hw, "register testing starting\n");
2300 		if (ixgbe_reg_test(adapter, &data[0]))
2301 			eth_test->flags |= ETH_TEST_FL_FAILED;
2302 
2303 		ixgbe_reset(adapter);
2304 		e_info(hw, "eeprom testing starting\n");
2305 		if (ixgbe_eeprom_test(adapter, &data[1]))
2306 			eth_test->flags |= ETH_TEST_FL_FAILED;
2307 
2308 		ixgbe_reset(adapter);
2309 		e_info(hw, "interrupt testing starting\n");
2310 		if (ixgbe_intr_test(adapter, &data[2]))
2311 			eth_test->flags |= ETH_TEST_FL_FAILED;
2312 
2313 		/* If SRIOV or VMDq is enabled then skip MAC
2314 		 * loopback diagnostic. */
2315 		if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
2316 				      IXGBE_FLAG_VMDQ_ENABLED)) {
2317 			e_info(hw, "Skip MAC loopback diagnostic in VT mode\n");
2318 			data[3] = 0;
2319 			goto skip_loopback;
2320 		}
2321 
2322 		ixgbe_reset(adapter);
2323 		e_info(hw, "loopback testing starting\n");
2324 		if (ixgbe_loopback_test(adapter, &data[3]))
2325 			eth_test->flags |= ETH_TEST_FL_FAILED;
2326 
2327 skip_loopback:
2328 		ixgbe_reset(adapter);
2329 
2330 		/* clear testing bit and return adapter to previous state */
2331 		clear_bit(__IXGBE_TESTING, &adapter->state);
2332 		if (if_running)
2333 			ixgbe_open(netdev);
2334 		else if (hw->mac.ops.disable_tx_laser)
2335 			hw->mac.ops.disable_tx_laser(hw);
2336 	} else {
2337 		e_info(hw, "online testing starting\n");
2338 
2339 		/* Online tests */
2340 		if (ixgbe_link_test(adapter, &data[4]))
2341 			eth_test->flags |= ETH_TEST_FL_FAILED;
2342 
2343 		/* Offline tests aren't run; pass by default */
2344 		data[0] = 0;
2345 		data[1] = 0;
2346 		data[2] = 0;
2347 		data[3] = 0;
2348 
2349 		clear_bit(__IXGBE_TESTING, &adapter->state);
2350 	}
2351 }
2352 
ixgbe_wol_exclusion(struct ixgbe_adapter * adapter,struct ethtool_wolinfo * wol)2353 static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
2354 			       struct ethtool_wolinfo *wol)
2355 {
2356 	struct ixgbe_hw *hw = &adapter->hw;
2357 	int retval = 0;
2358 
2359 	/* WOL not supported for all devices */
2360 	if (!ixgbe_wol_supported(adapter, hw->device_id,
2361 				 hw->subsystem_device_id)) {
2362 		retval = 1;
2363 		wol->supported = 0;
2364 	}
2365 
2366 	return retval;
2367 }
2368 
ixgbe_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2369 static void ixgbe_get_wol(struct net_device *netdev,
2370 			  struct ethtool_wolinfo *wol)
2371 {
2372 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2373 
2374 	wol->supported = WAKE_UCAST | WAKE_MCAST |
2375 			 WAKE_BCAST | WAKE_MAGIC;
2376 	wol->wolopts = 0;
2377 
2378 	if (ixgbe_wol_exclusion(adapter, wol) ||
2379 	    !device_can_wakeup(&adapter->pdev->dev))
2380 		return;
2381 
2382 	if (adapter->wol & IXGBE_WUFC_EX)
2383 		wol->wolopts |= WAKE_UCAST;
2384 	if (adapter->wol & IXGBE_WUFC_MC)
2385 		wol->wolopts |= WAKE_MCAST;
2386 	if (adapter->wol & IXGBE_WUFC_BC)
2387 		wol->wolopts |= WAKE_BCAST;
2388 	if (adapter->wol & IXGBE_WUFC_MAG)
2389 		wol->wolopts |= WAKE_MAGIC;
2390 }
2391 
ixgbe_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2392 static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2393 {
2394 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2395 
2396 	if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE |
2397 			    WAKE_FILTER))
2398 		return -EOPNOTSUPP;
2399 
2400 	if (ixgbe_wol_exclusion(adapter, wol))
2401 		return wol->wolopts ? -EOPNOTSUPP : 0;
2402 
2403 	adapter->wol = 0;
2404 
2405 	if (wol->wolopts & WAKE_UCAST)
2406 		adapter->wol |= IXGBE_WUFC_EX;
2407 	if (wol->wolopts & WAKE_MCAST)
2408 		adapter->wol |= IXGBE_WUFC_MC;
2409 	if (wol->wolopts & WAKE_BCAST)
2410 		adapter->wol |= IXGBE_WUFC_BC;
2411 	if (wol->wolopts & WAKE_MAGIC)
2412 		adapter->wol |= IXGBE_WUFC_MAG;
2413 
2414 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2415 
2416 	return 0;
2417 }
2418 
ixgbe_set_wol_acpi(struct net_device * netdev,struct ethtool_wolinfo * wol)2419 static int ixgbe_set_wol_acpi(struct net_device *netdev,
2420 			      struct ethtool_wolinfo *wol)
2421 {
2422 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2423 	struct ixgbe_hw *hw = &adapter->hw;
2424 	u32 grc;
2425 
2426 	if (ixgbe_wol_exclusion(adapter, wol))
2427 		return wol->wolopts ? -EOPNOTSUPP : 0;
2428 
2429 	/* disable APM wakeup */
2430 	grc = IXGBE_READ_REG(hw, IXGBE_GRC_X550EM_a);
2431 	grc &= ~IXGBE_GRC_APME;
2432 	IXGBE_WRITE_REG(hw, IXGBE_GRC_X550EM_a, grc);
2433 
2434 	/* erase existing filters */
2435 	IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0);
2436 	adapter->wol = 0;
2437 
2438 	if (wol->wolopts & WAKE_UCAST)
2439 		adapter->wol |= IXGBE_WUFC_EX;
2440 	if (wol->wolopts & WAKE_MCAST)
2441 		adapter->wol |= IXGBE_WUFC_MC;
2442 	if (wol->wolopts & WAKE_BCAST)
2443 		adapter->wol |= IXGBE_WUFC_BC;
2444 
2445 	IXGBE_WRITE_REG(hw, IXGBE_WUC, IXGBE_WUC_PME_EN);
2446 	IXGBE_WRITE_REG(hw, IXGBE_WUFC, adapter->wol);
2447 
2448 	hw->wol_enabled = adapter->wol;
2449 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2450 
2451 	return 0;
2452 }
2453 
ixgbe_set_wol_e610(struct net_device * netdev,struct ethtool_wolinfo * wol)2454 static int ixgbe_set_wol_e610(struct net_device *netdev,
2455 			      struct ethtool_wolinfo *wol)
2456 {
2457 	if (wol->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
2458 		return ixgbe_set_wol_acpi(netdev, wol);
2459 	else
2460 		return ixgbe_set_wol(netdev, wol);
2461 }
2462 
ixgbe_nway_reset(struct net_device * netdev)2463 static int ixgbe_nway_reset(struct net_device *netdev)
2464 {
2465 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2466 
2467 	if (netif_running(netdev))
2468 		ixgbe_reinit_locked(adapter);
2469 
2470 	return 0;
2471 }
2472 
ixgbe_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)2473 static int ixgbe_set_phys_id(struct net_device *netdev,
2474 			     enum ethtool_phys_id_state state)
2475 {
2476 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2477 	struct ixgbe_hw *hw = &adapter->hw;
2478 
2479 	if (!hw->mac.ops.led_on || !hw->mac.ops.led_off)
2480 		return -EOPNOTSUPP;
2481 
2482 	switch (state) {
2483 	case ETHTOOL_ID_ACTIVE:
2484 		adapter->led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2485 		return 2;
2486 
2487 	case ETHTOOL_ID_ON:
2488 		hw->mac.ops.led_on(hw, hw->mac.led_link_act);
2489 		break;
2490 
2491 	case ETHTOOL_ID_OFF:
2492 		hw->mac.ops.led_off(hw, hw->mac.led_link_act);
2493 		break;
2494 
2495 	case ETHTOOL_ID_INACTIVE:
2496 		/* Restore LED settings */
2497 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_LEDCTL, adapter->led_reg);
2498 		break;
2499 	}
2500 
2501 	return 0;
2502 }
2503 
ixgbe_set_phys_id_e610(struct net_device * netdev,enum ethtool_phys_id_state state)2504 static int ixgbe_set_phys_id_e610(struct net_device *netdev,
2505 				  enum ethtool_phys_id_state state)
2506 {
2507 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2508 	bool led_active;
2509 
2510 	switch (state) {
2511 	case ETHTOOL_ID_ACTIVE:
2512 		led_active = true;
2513 		break;
2514 	case ETHTOOL_ID_INACTIVE:
2515 		led_active = false;
2516 		break;
2517 	default:
2518 		return -EOPNOTSUPP;
2519 	}
2520 
2521 	return ixgbe_aci_set_port_id_led(&adapter->hw, !led_active);
2522 }
2523 
ixgbe_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)2524 static int ixgbe_get_coalesce(struct net_device *netdev,
2525 			      struct ethtool_coalesce *ec,
2526 			      struct kernel_ethtool_coalesce *kernel_coal,
2527 			      struct netlink_ext_ack *extack)
2528 {
2529 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2530 
2531 	/* only valid if in constant ITR mode */
2532 	if (adapter->rx_itr_setting <= 1)
2533 		ec->rx_coalesce_usecs = adapter->rx_itr_setting;
2534 	else
2535 		ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
2536 
2537 	/* if in mixed tx/rx queues per vector mode, report only rx settings */
2538 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2539 		return 0;
2540 
2541 	/* only valid if in constant ITR mode */
2542 	if (adapter->tx_itr_setting <= 1)
2543 		ec->tx_coalesce_usecs = adapter->tx_itr_setting;
2544 	else
2545 		ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
2546 
2547 	return 0;
2548 }
2549 
2550 /*
2551  * this function must be called before setting the new value of
2552  * rx_itr_setting
2553  */
ixgbe_update_rsc(struct ixgbe_adapter * adapter)2554 static bool ixgbe_update_rsc(struct ixgbe_adapter *adapter)
2555 {
2556 	struct net_device *netdev = adapter->netdev;
2557 
2558 	/* nothing to do if LRO or RSC are not enabled */
2559 	if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) ||
2560 	    !(netdev->features & NETIF_F_LRO))
2561 		return false;
2562 
2563 	/* check the feature flag value and enable RSC if necessary */
2564 	if (adapter->rx_itr_setting == 1 ||
2565 	    adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) {
2566 		if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) {
2567 			adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
2568 			e_info(probe, "rx-usecs value high enough to re-enable RSC\n");
2569 			return true;
2570 		}
2571 	/* if interrupt rate is too high then disable RSC */
2572 	} else if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
2573 		adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
2574 		e_info(probe, "rx-usecs set too low, disabling RSC\n");
2575 		return true;
2576 	}
2577 	return false;
2578 }
2579 
ixgbe_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)2580 static int ixgbe_set_coalesce(struct net_device *netdev,
2581 			      struct ethtool_coalesce *ec,
2582 			      struct kernel_ethtool_coalesce *kernel_coal,
2583 			      struct netlink_ext_ack *extack)
2584 {
2585 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
2586 	struct ixgbe_q_vector *q_vector;
2587 	int i;
2588 	u16 tx_itr_param, rx_itr_param, tx_itr_prev;
2589 	bool need_reset = false;
2590 
2591 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) {
2592 		/* reject Tx specific changes in case of mixed RxTx vectors */
2593 		if (ec->tx_coalesce_usecs)
2594 			return -EINVAL;
2595 		tx_itr_prev = adapter->rx_itr_setting;
2596 	} else {
2597 		tx_itr_prev = adapter->tx_itr_setting;
2598 	}
2599 
2600 	if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
2601 	    (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
2602 		return -EINVAL;
2603 
2604 	if (ec->rx_coalesce_usecs > 1)
2605 		adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
2606 	else
2607 		adapter->rx_itr_setting = ec->rx_coalesce_usecs;
2608 
2609 	if (adapter->rx_itr_setting == 1)
2610 		rx_itr_param = IXGBE_20K_ITR;
2611 	else
2612 		rx_itr_param = adapter->rx_itr_setting;
2613 
2614 	if (ec->tx_coalesce_usecs > 1)
2615 		adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
2616 	else
2617 		adapter->tx_itr_setting = ec->tx_coalesce_usecs;
2618 
2619 	if (adapter->tx_itr_setting == 1)
2620 		tx_itr_param = IXGBE_12K_ITR;
2621 	else
2622 		tx_itr_param = adapter->tx_itr_setting;
2623 
2624 	/* mixed Rx/Tx */
2625 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2626 		adapter->tx_itr_setting = adapter->rx_itr_setting;
2627 
2628 	/* detect ITR changes that require update of TXDCTL.WTHRESH */
2629 	if ((adapter->tx_itr_setting != 1) &&
2630 	    (adapter->tx_itr_setting < IXGBE_100K_ITR)) {
2631 		if ((tx_itr_prev == 1) ||
2632 		    (tx_itr_prev >= IXGBE_100K_ITR))
2633 			need_reset = true;
2634 	} else {
2635 		if ((tx_itr_prev != 1) &&
2636 		    (tx_itr_prev < IXGBE_100K_ITR))
2637 			need_reset = true;
2638 	}
2639 
2640 	/* check the old value and enable RSC if necessary */
2641 	need_reset |= ixgbe_update_rsc(adapter);
2642 
2643 	for (i = 0; i < adapter->num_q_vectors; i++) {
2644 		q_vector = adapter->q_vector[i];
2645 		if (q_vector->tx.count && !q_vector->rx.count)
2646 			/* tx only */
2647 			q_vector->itr = tx_itr_param;
2648 		else
2649 			/* rx only or mixed */
2650 			q_vector->itr = rx_itr_param;
2651 		ixgbe_write_eitr(q_vector);
2652 	}
2653 
2654 	/*
2655 	 * do reset here at the end to make sure EITR==0 case is handled
2656 	 * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
2657 	 * also locks in RSC enable/disable which requires reset
2658 	 */
2659 	if (need_reset)
2660 		ixgbe_do_reset(netdev);
2661 
2662 	return 0;
2663 }
2664 
ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2665 static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2666 					struct ethtool_rxnfc *cmd)
2667 {
2668 	union ixgbe_atr_input *mask = &adapter->fdir_mask;
2669 	struct ethtool_rx_flow_spec *fsp =
2670 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2671 	struct hlist_node *node2;
2672 	struct ixgbe_fdir_filter *rule = NULL;
2673 
2674 	/* report total rule count */
2675 	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2676 
2677 	hlist_for_each_entry_safe(rule, node2,
2678 				  &adapter->fdir_filter_list, fdir_node) {
2679 		if (fsp->location <= rule->sw_idx)
2680 			break;
2681 	}
2682 
2683 	if (!rule || fsp->location != rule->sw_idx)
2684 		return -EINVAL;
2685 
2686 	/* fill out the flow spec entry */
2687 
2688 	/* set flow type field */
2689 	switch (rule->filter.formatted.flow_type) {
2690 	case IXGBE_ATR_FLOW_TYPE_TCPV4:
2691 		fsp->flow_type = TCP_V4_FLOW;
2692 		break;
2693 	case IXGBE_ATR_FLOW_TYPE_UDPV4:
2694 		fsp->flow_type = UDP_V4_FLOW;
2695 		break;
2696 	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2697 		fsp->flow_type = SCTP_V4_FLOW;
2698 		break;
2699 	case IXGBE_ATR_FLOW_TYPE_IPV4:
2700 		fsp->flow_type = IP_USER_FLOW;
2701 		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2702 		fsp->h_u.usr_ip4_spec.proto = 0;
2703 		fsp->m_u.usr_ip4_spec.proto = 0;
2704 		break;
2705 	default:
2706 		return -EINVAL;
2707 	}
2708 
2709 	fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
2710 	fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
2711 	fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
2712 	fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
2713 	fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
2714 	fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
2715 	fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
2716 	fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
2717 	fsp->h_ext.vlan_tci = rule->filter.formatted.vlan_id;
2718 	fsp->m_ext.vlan_tci = mask->formatted.vlan_id;
2719 	fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
2720 	fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
2721 	fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
2722 	fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
2723 	fsp->flow_type |= FLOW_EXT;
2724 
2725 	/* record action */
2726 	if (rule->action == IXGBE_FDIR_DROP_QUEUE)
2727 		fsp->ring_cookie = RX_CLS_FLOW_DISC;
2728 	else
2729 		fsp->ring_cookie = rule->action;
2730 
2731 	return 0;
2732 }
2733 
ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd,u32 * rule_locs)2734 static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
2735 				      struct ethtool_rxnfc *cmd,
2736 				      u32 *rule_locs)
2737 {
2738 	struct hlist_node *node2;
2739 	struct ixgbe_fdir_filter *rule;
2740 	int cnt = 0;
2741 
2742 	/* report total rule count */
2743 	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2744 
2745 	hlist_for_each_entry_safe(rule, node2,
2746 				  &adapter->fdir_filter_list, fdir_node) {
2747 		if (cnt == cmd->rule_cnt)
2748 			return -EMSGSIZE;
2749 		rule_locs[cnt] = rule->sw_idx;
2750 		cnt++;
2751 	}
2752 
2753 	cmd->rule_cnt = cnt;
2754 
2755 	return 0;
2756 }
2757 
ixgbe_get_rxfh_fields(struct net_device * dev,struct ethtool_rxfh_fields * cmd)2758 static int ixgbe_get_rxfh_fields(struct net_device *dev,
2759 				 struct ethtool_rxfh_fields *cmd)
2760 {
2761 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
2762 
2763 	cmd->data = 0;
2764 
2765 	/* Report default options for RSS on ixgbe */
2766 	switch (cmd->flow_type) {
2767 	case TCP_V4_FLOW:
2768 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2769 		fallthrough;
2770 	case UDP_V4_FLOW:
2771 		if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
2772 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2773 		fallthrough;
2774 	case SCTP_V4_FLOW:
2775 	case AH_ESP_V4_FLOW:
2776 	case AH_V4_FLOW:
2777 	case ESP_V4_FLOW:
2778 	case IPV4_FLOW:
2779 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2780 		break;
2781 	case TCP_V6_FLOW:
2782 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2783 		fallthrough;
2784 	case UDP_V6_FLOW:
2785 		if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
2786 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2787 		fallthrough;
2788 	case SCTP_V6_FLOW:
2789 	case AH_ESP_V6_FLOW:
2790 	case AH_V6_FLOW:
2791 	case ESP_V6_FLOW:
2792 	case IPV6_FLOW:
2793 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2794 		break;
2795 	default:
2796 		return -EINVAL;
2797 	}
2798 
2799 	return 0;
2800 }
2801 
ixgbe_rss_indir_tbl_max(struct ixgbe_adapter * adapter)2802 static int ixgbe_rss_indir_tbl_max(struct ixgbe_adapter *adapter)
2803 {
2804 	if (adapter->hw.mac.type < ixgbe_mac_X550)
2805 		return 16;
2806 	else
2807 		return 64;
2808 }
2809 
ixgbe_get_rx_ring_count(struct net_device * dev)2810 static u32 ixgbe_get_rx_ring_count(struct net_device *dev)
2811 {
2812 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
2813 
2814 	return min_t(u32, adapter->num_rx_queues,
2815 		     ixgbe_rss_indir_tbl_max(adapter));
2816 }
2817 
ixgbe_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd,u32 * rule_locs)2818 static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
2819 			   u32 *rule_locs)
2820 {
2821 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
2822 	int ret = -EOPNOTSUPP;
2823 
2824 	switch (cmd->cmd) {
2825 	case ETHTOOL_GRXCLSRLCNT:
2826 		cmd->rule_cnt = adapter->fdir_filter_count;
2827 		ret = 0;
2828 		break;
2829 	case ETHTOOL_GRXCLSRULE:
2830 		ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
2831 		break;
2832 	case ETHTOOL_GRXCLSRLALL:
2833 		ret = ixgbe_get_ethtool_fdir_all(adapter, cmd, rule_locs);
2834 		break;
2835 	default:
2836 		break;
2837 	}
2838 
2839 	return ret;
2840 }
2841 
ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ixgbe_fdir_filter * input,u16 sw_idx)2842 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2843 				    struct ixgbe_fdir_filter *input,
2844 				    u16 sw_idx)
2845 {
2846 	struct ixgbe_hw *hw = &adapter->hw;
2847 	struct hlist_node *node2;
2848 	struct ixgbe_fdir_filter *rule, *parent;
2849 	int err = -EINVAL;
2850 
2851 	parent = NULL;
2852 	rule = NULL;
2853 
2854 	hlist_for_each_entry_safe(rule, node2,
2855 				  &adapter->fdir_filter_list, fdir_node) {
2856 		/* hash found, or no matching entry */
2857 		if (rule->sw_idx >= sw_idx)
2858 			break;
2859 		parent = rule;
2860 	}
2861 
2862 	/* if there is an old rule occupying our place remove it */
2863 	if (rule && (rule->sw_idx == sw_idx)) {
2864 		if (!input || (rule->filter.formatted.bkt_hash !=
2865 			       input->filter.formatted.bkt_hash)) {
2866 			err = ixgbe_fdir_erase_perfect_filter_82599(hw,
2867 								&rule->filter,
2868 								sw_idx);
2869 		}
2870 
2871 		hlist_del(&rule->fdir_node);
2872 		kfree(rule);
2873 		adapter->fdir_filter_count--;
2874 	}
2875 
2876 	/*
2877 	 * If no input this was a delete, err should be 0 if a rule was
2878 	 * successfully found and removed from the list else -EINVAL
2879 	 */
2880 	if (!input)
2881 		return err;
2882 
2883 	/* initialize node and set software index */
2884 	INIT_HLIST_NODE(&input->fdir_node);
2885 
2886 	/* add filter to the list */
2887 	if (parent)
2888 		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2889 	else
2890 		hlist_add_head(&input->fdir_node,
2891 			       &adapter->fdir_filter_list);
2892 
2893 	/* update counts */
2894 	adapter->fdir_filter_count++;
2895 
2896 	return 0;
2897 }
2898 
ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec * fsp,u8 * flow_type)2899 static int ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
2900 				       u8 *flow_type)
2901 {
2902 	switch (fsp->flow_type & ~FLOW_EXT) {
2903 	case TCP_V4_FLOW:
2904 		*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2905 		break;
2906 	case UDP_V4_FLOW:
2907 		*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2908 		break;
2909 	case SCTP_V4_FLOW:
2910 		*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2911 		break;
2912 	case IP_USER_FLOW:
2913 		switch (fsp->h_u.usr_ip4_spec.proto) {
2914 		case IPPROTO_TCP:
2915 			*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2916 			break;
2917 		case IPPROTO_UDP:
2918 			*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2919 			break;
2920 		case IPPROTO_SCTP:
2921 			*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2922 			break;
2923 		case 0:
2924 			if (!fsp->m_u.usr_ip4_spec.proto) {
2925 				*flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
2926 				break;
2927 			}
2928 			fallthrough;
2929 		default:
2930 			return 0;
2931 		}
2932 		break;
2933 	default:
2934 		return 0;
2935 	}
2936 
2937 	return 1;
2938 }
2939 
ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2940 static int ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2941 					struct ethtool_rxnfc *cmd)
2942 {
2943 	struct ethtool_rx_flow_spec *fsp =
2944 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2945 	struct ixgbe_hw *hw = &adapter->hw;
2946 	struct ixgbe_fdir_filter *input;
2947 	union ixgbe_atr_input mask;
2948 	u8 queue;
2949 	int err;
2950 
2951 	if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
2952 		return -EOPNOTSUPP;
2953 
2954 	/* ring_cookie is a masked into a set of queues and ixgbe pools or
2955 	 * we use the drop index.
2956 	 */
2957 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
2958 		queue = IXGBE_FDIR_DROP_QUEUE;
2959 	} else {
2960 		u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
2961 		u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
2962 
2963 		if (!vf && (ring >= adapter->num_rx_queues))
2964 			return -EINVAL;
2965 		else if (vf &&
2966 			 ((vf > adapter->num_vfs) ||
2967 			   ring >= adapter->num_rx_queues_per_pool))
2968 			return -EINVAL;
2969 
2970 		/* Map the ring onto the absolute queue index */
2971 		if (!vf)
2972 			queue = adapter->rx_ring[ring]->reg_idx;
2973 		else
2974 			queue = ((vf - 1) *
2975 				adapter->num_rx_queues_per_pool) + ring;
2976 	}
2977 
2978 	/* Don't allow indexes to exist outside of available space */
2979 	if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) {
2980 		e_err(drv, "Location out of range\n");
2981 		return -EINVAL;
2982 	}
2983 
2984 	input = kzalloc_obj(*input, GFP_ATOMIC);
2985 	if (!input)
2986 		return -ENOMEM;
2987 
2988 	memset(&mask, 0, sizeof(union ixgbe_atr_input));
2989 
2990 	/* set SW index */
2991 	input->sw_idx = fsp->location;
2992 
2993 	/* record flow type */
2994 	if (!ixgbe_flowspec_to_flow_type(fsp,
2995 					 &input->filter.formatted.flow_type)) {
2996 		e_err(drv, "Unrecognized flow type\n");
2997 		goto err_out;
2998 	}
2999 
3000 	mask.formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
3001 				   IXGBE_ATR_L4TYPE_MASK;
3002 
3003 	if (input->filter.formatted.flow_type == IXGBE_ATR_FLOW_TYPE_IPV4)
3004 		mask.formatted.flow_type &= IXGBE_ATR_L4TYPE_IPV6_MASK;
3005 
3006 	/* Copy input into formatted structures */
3007 	input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
3008 	mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
3009 	input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
3010 	mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
3011 	input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
3012 	mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
3013 	input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
3014 	mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
3015 
3016 	if (fsp->flow_type & FLOW_EXT) {
3017 		input->filter.formatted.vm_pool =
3018 				(unsigned char)ntohl(fsp->h_ext.data[1]);
3019 		mask.formatted.vm_pool =
3020 				(unsigned char)ntohl(fsp->m_ext.data[1]);
3021 		input->filter.formatted.vlan_id = fsp->h_ext.vlan_tci;
3022 		mask.formatted.vlan_id = fsp->m_ext.vlan_tci;
3023 		input->filter.formatted.flex_bytes =
3024 						fsp->h_ext.vlan_etype;
3025 		mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
3026 	}
3027 
3028 	/* determine if we need to drop or route the packet */
3029 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
3030 		input->action = IXGBE_FDIR_DROP_QUEUE;
3031 	else
3032 		input->action = fsp->ring_cookie;
3033 
3034 	spin_lock(&adapter->fdir_perfect_lock);
3035 
3036 	if (hlist_empty(&adapter->fdir_filter_list)) {
3037 		/* save mask and program input mask into HW */
3038 		memcpy(&adapter->fdir_mask, &mask, sizeof(mask));
3039 		err = ixgbe_fdir_set_input_mask_82599(hw, &mask);
3040 		if (err) {
3041 			e_err(drv, "Error writing mask\n");
3042 			goto err_out_w_lock;
3043 		}
3044 	} else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) {
3045 		e_err(drv, "Only one mask supported per port\n");
3046 		goto err_out_w_lock;
3047 	}
3048 
3049 	/* apply mask and compute/store hash */
3050 	ixgbe_atr_compute_perfect_hash_82599(&input->filter, &mask);
3051 
3052 	/* program filters to filter memory */
3053 	err = ixgbe_fdir_write_perfect_filter_82599(hw,
3054 				&input->filter, input->sw_idx, queue);
3055 	if (err)
3056 		goto err_out_w_lock;
3057 
3058 	ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
3059 
3060 	spin_unlock(&adapter->fdir_perfect_lock);
3061 
3062 	return err;
3063 err_out_w_lock:
3064 	spin_unlock(&adapter->fdir_perfect_lock);
3065 err_out:
3066 	kfree(input);
3067 	return -EINVAL;
3068 }
3069 
ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)3070 static int ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
3071 					struct ethtool_rxnfc *cmd)
3072 {
3073 	struct ethtool_rx_flow_spec *fsp =
3074 		(struct ethtool_rx_flow_spec *)&cmd->fs;
3075 	int err;
3076 
3077 	spin_lock(&adapter->fdir_perfect_lock);
3078 	err = ixgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location);
3079 	spin_unlock(&adapter->fdir_perfect_lock);
3080 
3081 	return err;
3082 }
3083 
3084 #define UDP_RSS_FLAGS (IXGBE_FLAG2_RSS_FIELD_IPV4_UDP | \
3085 		       IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
ixgbe_set_rxfh_fields(struct net_device * dev,const struct ethtool_rxfh_fields * nfc,struct netlink_ext_ack * extack)3086 static int ixgbe_set_rxfh_fields(struct net_device *dev,
3087 				 const struct ethtool_rxfh_fields *nfc,
3088 				 struct netlink_ext_ack *extack)
3089 {
3090 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3091 	u32 flags2 = adapter->flags2;
3092 
3093 	/*
3094 	 * RSS does not support anything other than hashing
3095 	 * to queues on src and dst IPs and ports
3096 	 */
3097 	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3098 			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
3099 		return -EINVAL;
3100 
3101 	switch (nfc->flow_type) {
3102 	case TCP_V4_FLOW:
3103 	case TCP_V6_FLOW:
3104 		if (!(nfc->data & RXH_IP_SRC) ||
3105 		    !(nfc->data & RXH_IP_DST) ||
3106 		    !(nfc->data & RXH_L4_B_0_1) ||
3107 		    !(nfc->data & RXH_L4_B_2_3))
3108 			return -EINVAL;
3109 		break;
3110 	case UDP_V4_FLOW:
3111 		if (!(nfc->data & RXH_IP_SRC) ||
3112 		    !(nfc->data & RXH_IP_DST))
3113 			return -EINVAL;
3114 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
3115 		case 0:
3116 			flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
3117 			break;
3118 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
3119 			flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
3120 			break;
3121 		default:
3122 			return -EINVAL;
3123 		}
3124 		break;
3125 	case UDP_V6_FLOW:
3126 		if (!(nfc->data & RXH_IP_SRC) ||
3127 		    !(nfc->data & RXH_IP_DST))
3128 			return -EINVAL;
3129 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
3130 		case 0:
3131 			flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
3132 			break;
3133 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
3134 			flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
3135 			break;
3136 		default:
3137 			return -EINVAL;
3138 		}
3139 		break;
3140 	case AH_ESP_V4_FLOW:
3141 	case AH_V4_FLOW:
3142 	case ESP_V4_FLOW:
3143 	case SCTP_V4_FLOW:
3144 	case AH_ESP_V6_FLOW:
3145 	case AH_V6_FLOW:
3146 	case ESP_V6_FLOW:
3147 	case SCTP_V6_FLOW:
3148 		if (!(nfc->data & RXH_IP_SRC) ||
3149 		    !(nfc->data & RXH_IP_DST) ||
3150 		    (nfc->data & RXH_L4_B_0_1) ||
3151 		    (nfc->data & RXH_L4_B_2_3))
3152 			return -EINVAL;
3153 		break;
3154 	default:
3155 		return -EINVAL;
3156 	}
3157 
3158 	/* if we changed something we need to update flags */
3159 	if (flags2 != adapter->flags2) {
3160 		struct ixgbe_hw *hw = &adapter->hw;
3161 		u32 mrqc;
3162 		unsigned int pf_pool = adapter->num_vfs;
3163 
3164 		if ((hw->mac.type >= ixgbe_mac_X550) &&
3165 		    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
3166 			mrqc = IXGBE_READ_REG(hw, IXGBE_PFVFMRQC(pf_pool));
3167 		else
3168 			mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);
3169 
3170 		if ((flags2 & UDP_RSS_FLAGS) &&
3171 		    !(adapter->flags2 & UDP_RSS_FLAGS))
3172 			e_warn(drv, "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
3173 
3174 		adapter->flags2 = flags2;
3175 
3176 		/* Perform hash on these packet types */
3177 		mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4
3178 		      | IXGBE_MRQC_RSS_FIELD_IPV4_TCP
3179 		      | IXGBE_MRQC_RSS_FIELD_IPV6
3180 		      | IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
3181 
3182 		mrqc &= ~(IXGBE_MRQC_RSS_FIELD_IPV4_UDP |
3183 			  IXGBE_MRQC_RSS_FIELD_IPV6_UDP);
3184 
3185 		if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
3186 			mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
3187 
3188 		if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
3189 			mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
3190 
3191 		if ((hw->mac.type >= ixgbe_mac_X550) &&
3192 		    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
3193 			IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), mrqc);
3194 		else
3195 			IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
3196 	}
3197 
3198 	return 0;
3199 }
3200 
ixgbe_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd)3201 static int ixgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
3202 {
3203 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3204 	int ret = -EOPNOTSUPP;
3205 
3206 	switch (cmd->cmd) {
3207 	case ETHTOOL_SRXCLSRLINS:
3208 		ret = ixgbe_add_ethtool_fdir_entry(adapter, cmd);
3209 		break;
3210 	case ETHTOOL_SRXCLSRLDEL:
3211 		ret = ixgbe_del_ethtool_fdir_entry(adapter, cmd);
3212 		break;
3213 	default:
3214 		break;
3215 	}
3216 
3217 	return ret;
3218 }
3219 
ixgbe_get_rxfh_key_size(struct net_device * netdev)3220 static u32 ixgbe_get_rxfh_key_size(struct net_device *netdev)
3221 {
3222 	return IXGBE_RSS_KEY_SIZE;
3223 }
3224 
ixgbe_rss_indir_size(struct net_device * netdev)3225 static u32 ixgbe_rss_indir_size(struct net_device *netdev)
3226 {
3227 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3228 
3229 	return ixgbe_rss_indir_tbl_entries(adapter);
3230 }
3231 
ixgbe_get_reta(struct ixgbe_adapter * adapter,u32 * indir)3232 static void ixgbe_get_reta(struct ixgbe_adapter *adapter, u32 *indir)
3233 {
3234 	int i, reta_size = ixgbe_rss_indir_tbl_entries(adapter);
3235 	u16 rss_m = adapter->ring_feature[RING_F_RSS].mask;
3236 
3237 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
3238 		rss_m = adapter->ring_feature[RING_F_RSS].indices - 1;
3239 
3240 	for (i = 0; i < reta_size; i++)
3241 		indir[i] = adapter->rss_indir_tbl[i] & rss_m;
3242 }
3243 
ixgbe_get_rxfh(struct net_device * netdev,struct ethtool_rxfh_param * rxfh)3244 static int ixgbe_get_rxfh(struct net_device *netdev,
3245 			  struct ethtool_rxfh_param *rxfh)
3246 {
3247 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3248 
3249 	rxfh->hfunc = ETH_RSS_HASH_TOP;
3250 
3251 	if (rxfh->indir)
3252 		ixgbe_get_reta(adapter, rxfh->indir);
3253 
3254 	if (rxfh->key)
3255 		memcpy(rxfh->key, adapter->rss_key,
3256 		       ixgbe_get_rxfh_key_size(netdev));
3257 
3258 	return 0;
3259 }
3260 
ixgbe_set_rxfh(struct net_device * netdev,struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)3261 static int ixgbe_set_rxfh(struct net_device *netdev,
3262 			  struct ethtool_rxfh_param *rxfh,
3263 			  struct netlink_ext_ack *extack)
3264 {
3265 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3266 	int i;
3267 	u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
3268 
3269 	if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
3270 	    rxfh->hfunc != ETH_RSS_HASH_TOP)
3271 		return -EOPNOTSUPP;
3272 
3273 	/* Fill out the redirection table */
3274 	if (rxfh->indir) {
3275 		int max_queues = min_t(int, adapter->num_rx_queues,
3276 				       ixgbe_rss_indir_tbl_max(adapter));
3277 
3278 		/*Allow at least 2 queues w/ SR-IOV.*/
3279 		if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
3280 		    (max_queues < 2))
3281 			max_queues = 2;
3282 
3283 		/* Verify user input. */
3284 		for (i = 0; i < reta_entries; i++)
3285 			if (rxfh->indir[i] >= max_queues)
3286 				return -EINVAL;
3287 
3288 		for (i = 0; i < reta_entries; i++)
3289 			adapter->rss_indir_tbl[i] = rxfh->indir[i];
3290 
3291 		ixgbe_store_reta(adapter);
3292 	}
3293 
3294 	/* Fill out the rss hash key */
3295 	if (rxfh->key) {
3296 		memcpy(adapter->rss_key, rxfh->key,
3297 		       ixgbe_get_rxfh_key_size(netdev));
3298 		ixgbe_store_key(adapter);
3299 	}
3300 
3301 	return 0;
3302 }
3303 
ixgbe_get_ts_info(struct net_device * dev,struct kernel_ethtool_ts_info * info)3304 static int ixgbe_get_ts_info(struct net_device *dev,
3305 			     struct kernel_ethtool_ts_info *info)
3306 {
3307 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3308 
3309 	/* we always support timestamping disabled */
3310 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
3311 
3312 	switch (adapter->hw.mac.type) {
3313 	case ixgbe_mac_X550:
3314 	case ixgbe_mac_X550EM_x:
3315 	case ixgbe_mac_x550em_a:
3316 	case ixgbe_mac_e610:
3317 		info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
3318 		break;
3319 	case ixgbe_mac_X540:
3320 	case ixgbe_mac_82599EB:
3321 		info->rx_filters |=
3322 			BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
3323 			BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
3324 			BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
3325 		break;
3326 	default:
3327 		return ethtool_op_get_ts_info(dev, info);
3328 	}
3329 
3330 	info->so_timestamping =
3331 		SOF_TIMESTAMPING_TX_SOFTWARE |
3332 		SOF_TIMESTAMPING_TX_HARDWARE |
3333 		SOF_TIMESTAMPING_RX_HARDWARE |
3334 		SOF_TIMESTAMPING_RAW_HARDWARE;
3335 
3336 	if (adapter->ptp_clock)
3337 		info->phc_index = ptp_clock_index(adapter->ptp_clock);
3338 
3339 	info->tx_types =
3340 		BIT(HWTSTAMP_TX_OFF) |
3341 		BIT(HWTSTAMP_TX_ON);
3342 
3343 	return 0;
3344 }
3345 
ixgbe_max_channels(struct ixgbe_adapter * adapter)3346 static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter)
3347 {
3348 	unsigned int max_combined;
3349 	u8 tcs = adapter->hw_tcs;
3350 
3351 	if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
3352 		/* We only support one q_vector without MSI-X */
3353 		max_combined = 1;
3354 	} else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
3355 		/* Limit value based on the queue mask */
3356 		max_combined = adapter->ring_feature[RING_F_RSS].mask + 1;
3357 	} else if (tcs > 1) {
3358 		/* For DCB report channels per traffic class */
3359 		if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
3360 			/* 8 TC w/ 4 queues per TC */
3361 			max_combined = 4;
3362 		} else if (tcs > 4) {
3363 			/* 8 TC w/ 8 queues per TC */
3364 			max_combined = 8;
3365 		} else {
3366 			/* 4 TC w/ 16 queues per TC */
3367 			max_combined = 16;
3368 		}
3369 	} else if (adapter->atr_sample_rate) {
3370 		/* support up to 64 queues with ATR */
3371 		max_combined = IXGBE_MAX_FDIR_INDICES;
3372 	} else {
3373 		/* support up to 16 queues with RSS */
3374 		max_combined = ixgbe_max_rss_indices(adapter);
3375 	}
3376 
3377 	return min_t(int, max_combined, num_online_cpus());
3378 }
3379 
ixgbe_get_channels(struct net_device * dev,struct ethtool_channels * ch)3380 static void ixgbe_get_channels(struct net_device *dev,
3381 			       struct ethtool_channels *ch)
3382 {
3383 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3384 
3385 	/* report maximum channels */
3386 	ch->max_combined = ixgbe_max_channels(adapter);
3387 
3388 	/* report info for other vector */
3389 	if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
3390 		ch->max_other = NON_Q_VECTORS;
3391 		ch->other_count = NON_Q_VECTORS;
3392 	}
3393 
3394 	/* record RSS queues */
3395 	ch->combined_count = adapter->ring_feature[RING_F_RSS].indices;
3396 
3397 	/* nothing else to report if RSS is disabled */
3398 	if (ch->combined_count == 1)
3399 		return;
3400 
3401 	/* we do not support ATR queueing if SR-IOV is enabled */
3402 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
3403 		return;
3404 
3405 	/* same thing goes for being DCB enabled */
3406 	if (adapter->hw_tcs > 1)
3407 		return;
3408 
3409 	/* if ATR is disabled we can exit */
3410 	if (!adapter->atr_sample_rate)
3411 		return;
3412 
3413 	/* report flow director queues as maximum channels */
3414 	ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices;
3415 }
3416 
ixgbe_set_channels(struct net_device * dev,struct ethtool_channels * ch)3417 static int ixgbe_set_channels(struct net_device *dev,
3418 			      struct ethtool_channels *ch)
3419 {
3420 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3421 	unsigned int count = ch->combined_count;
3422 	u8 max_rss_indices = ixgbe_max_rss_indices(adapter);
3423 
3424 	/* verify they are not requesting separate vectors */
3425 	if (!count || ch->rx_count || ch->tx_count)
3426 		return -EINVAL;
3427 
3428 	/* verify other_count has not changed */
3429 	if (ch->other_count != NON_Q_VECTORS)
3430 		return -EINVAL;
3431 
3432 	/* verify the number of channels does not exceed hardware limits */
3433 	if (count > ixgbe_max_channels(adapter))
3434 		return -EINVAL;
3435 
3436 	/* update feature limits from largest to smallest supported values */
3437 	adapter->ring_feature[RING_F_FDIR].limit = count;
3438 
3439 	/* cap RSS limit */
3440 	if (count > max_rss_indices)
3441 		count = max_rss_indices;
3442 	adapter->ring_feature[RING_F_RSS].limit = count;
3443 
3444 #ifdef IXGBE_FCOE
3445 	/* cap FCoE limit at 8 */
3446 	if (count > IXGBE_FCRETA_SIZE)
3447 		count = IXGBE_FCRETA_SIZE;
3448 	adapter->ring_feature[RING_F_FCOE].limit = count;
3449 
3450 #endif
3451 	/* use setup TC to update any traffic class queue mapping */
3452 	return ixgbe_setup_tc(dev, adapter->hw_tcs);
3453 }
3454 
ixgbe_get_module_info(struct net_device * dev,struct ethtool_modinfo * modinfo)3455 static int ixgbe_get_module_info(struct net_device *dev,
3456 				       struct ethtool_modinfo *modinfo)
3457 {
3458 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3459 	struct ixgbe_hw *hw = &adapter->hw;
3460 	u8 sff8472_rev, addr_mode;
3461 	bool page_swap = false;
3462 	int status;
3463 
3464 	if (hw->phy.type == ixgbe_phy_fw)
3465 		return -ENXIO;
3466 
3467 	/* Check whether we support SFF-8472 or not */
3468 	status = hw->phy.ops.read_i2c_eeprom(hw,
3469 					     IXGBE_SFF_SFF_8472_COMP,
3470 					     &sff8472_rev);
3471 	if (status)
3472 		return -EIO;
3473 
3474 	/* addressing mode is not supported */
3475 	status = hw->phy.ops.read_i2c_eeprom(hw,
3476 					     IXGBE_SFF_SFF_8472_SWAP,
3477 					     &addr_mode);
3478 	if (status)
3479 		return -EIO;
3480 
3481 	if (addr_mode & IXGBE_SFF_ADDRESSING_MODE) {
3482 		e_err(drv, "Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n");
3483 		page_swap = true;
3484 	}
3485 
3486 	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
3487 	    !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
3488 		/* We have a SFP, but it does not support SFF-8472 */
3489 		modinfo->type = ETH_MODULE_SFF_8079;
3490 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3491 	} else {
3492 		/* We have a SFP which supports a revision of SFF-8472. */
3493 		modinfo->type = ETH_MODULE_SFF_8472;
3494 		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3495 	}
3496 
3497 	return 0;
3498 }
3499 
ixgbe_get_module_eeprom(struct net_device * dev,struct ethtool_eeprom * ee,u8 * data)3500 static int ixgbe_get_module_eeprom(struct net_device *dev,
3501 					 struct ethtool_eeprom *ee,
3502 					 u8 *data)
3503 {
3504 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
3505 	struct ixgbe_hw *hw = &adapter->hw;
3506 	int status = -EFAULT;
3507 	u8 databyte = 0xFF;
3508 	int i = 0;
3509 
3510 	if (ee->len == 0)
3511 		return -EINVAL;
3512 
3513 	if (hw->phy.type == ixgbe_phy_fw)
3514 		return -ENXIO;
3515 
3516 	for (i = ee->offset; i < ee->offset + ee->len; i++) {
3517 		/* I2C reads can take long time */
3518 		if (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
3519 			return -EBUSY;
3520 
3521 		if (i < ETH_MODULE_SFF_8079_LEN)
3522 			status = hw->phy.ops.read_i2c_eeprom(hw, i, &databyte);
3523 		else
3524 			status = hw->phy.ops.read_i2c_sff8472(hw, i, &databyte);
3525 
3526 		if (status)
3527 			return -EIO;
3528 
3529 		data[i - ee->offset] = databyte;
3530 	}
3531 
3532 	return 0;
3533 }
3534 
3535 static const struct {
3536 	ixgbe_link_speed mac_speed;
3537 	u32 link_mode;
3538 } ixgbe_ls_map[] = {
3539 	{ IXGBE_LINK_SPEED_10_FULL, ETHTOOL_LINK_MODE_10baseT_Full_BIT },
3540 	{ IXGBE_LINK_SPEED_100_FULL, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
3541 	{ IXGBE_LINK_SPEED_1GB_FULL, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
3542 	{ IXGBE_LINK_SPEED_2_5GB_FULL, ETHTOOL_LINK_MODE_2500baseX_Full_BIT },
3543 	{ IXGBE_LINK_SPEED_10GB_FULL, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
3544 };
3545 
3546 static const struct {
3547 	u32 lp_advertised;
3548 	u32 link_mode;
3549 } ixgbe_lp_map[] = {
3550 	{ FW_PHY_ACT_UD_2_100M_TX_EEE, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
3551 	{ FW_PHY_ACT_UD_2_1G_T_EEE, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
3552 	{ FW_PHY_ACT_UD_2_10G_T_EEE, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
3553 	{ FW_PHY_ACT_UD_2_1G_KX_EEE, ETHTOOL_LINK_MODE_1000baseKX_Full_BIT },
3554 	{ FW_PHY_ACT_UD_2_10G_KX4_EEE, ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT },
3555 	{ FW_PHY_ACT_UD_2_10G_KR_EEE, ETHTOOL_LINK_MODE_10000baseKR_Full_BIT},
3556 };
3557 
3558 static int
ixgbe_get_eee_fw(struct ixgbe_adapter * adapter,struct ethtool_keee * edata)3559 ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_keee *edata)
3560 {
3561 	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);
3562 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
3563 	struct ixgbe_hw *hw = &adapter->hw;
3564 	int rc;
3565 	u16 i;
3566 
3567 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_UD_2, &info);
3568 	if (rc)
3569 		return rc;
3570 
3571 	for (i = 0; i < ARRAY_SIZE(ixgbe_lp_map); ++i) {
3572 		if (info[0] & ixgbe_lp_map[i].lp_advertised)
3573 			linkmode_set_bit(ixgbe_lp_map[i].link_mode,
3574 					 edata->lp_advertised);
3575 	}
3576 
3577 	for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3578 		if (hw->phy.eee_speeds_supported & ixgbe_ls_map[i].mac_speed)
3579 			linkmode_set_bit(ixgbe_ls_map[i].link_mode,
3580 					 edata->supported);
3581 	}
3582 
3583 	for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3584 		if (hw->phy.eee_speeds_advertised & ixgbe_ls_map[i].mac_speed)
3585 			linkmode_set_bit(ixgbe_ls_map[i].link_mode,
3586 					 edata->advertised);
3587 	}
3588 
3589 	edata->eee_enabled = !linkmode_empty(edata->advertised);
3590 	edata->tx_lpi_enabled = edata->eee_enabled;
3591 
3592 	linkmode_and(common, edata->advertised, edata->lp_advertised);
3593 	edata->eee_active = !linkmode_empty(common);
3594 
3595 	return 0;
3596 }
3597 
ixgbe_get_eee(struct net_device * netdev,struct ethtool_keee * edata)3598 static int ixgbe_get_eee(struct net_device *netdev, struct ethtool_keee *edata)
3599 {
3600 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3601 	struct ixgbe_hw *hw = &adapter->hw;
3602 
3603 	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3604 		return -EOPNOTSUPP;
3605 
3606 	if (hw->phy.eee_speeds_supported && hw->phy.type == ixgbe_phy_fw)
3607 		return ixgbe_get_eee_fw(adapter, edata);
3608 
3609 	return -EOPNOTSUPP;
3610 }
3611 
ixgbe_set_eee(struct net_device * netdev,struct ethtool_keee * edata)3612 static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
3613 {
3614 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3615 	struct ixgbe_hw *hw = &adapter->hw;
3616 	struct ethtool_keee eee_data;
3617 	int ret_val;
3618 
3619 	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3620 		return -EOPNOTSUPP;
3621 
3622 	memset(&eee_data, 0, sizeof(struct ethtool_keee));
3623 
3624 	ret_val = ixgbe_get_eee(netdev, &eee_data);
3625 	if (ret_val)
3626 		return ret_val;
3627 
3628 	if (eee_data.eee_enabled && !edata->eee_enabled) {
3629 		if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) {
3630 			e_err(drv, "Setting EEE tx-lpi is not supported\n");
3631 			return -EINVAL;
3632 		}
3633 
3634 		if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) {
3635 			e_err(drv,
3636 			      "Setting EEE Tx LPI timer is not supported\n");
3637 			return -EINVAL;
3638 		}
3639 
3640 		if (!linkmode_equal(eee_data.advertised, edata->advertised)) {
3641 			e_err(drv,
3642 			      "Setting EEE advertised speeds is not supported\n");
3643 			return -EINVAL;
3644 		}
3645 	}
3646 
3647 	if (eee_data.eee_enabled != edata->eee_enabled) {
3648 		if (edata->eee_enabled) {
3649 			adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
3650 			hw->phy.eee_speeds_advertised =
3651 						   hw->phy.eee_speeds_supported;
3652 		} else {
3653 			adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
3654 			hw->phy.eee_speeds_advertised = 0;
3655 		}
3656 
3657 		/* reset link */
3658 		if (netif_running(netdev))
3659 			ixgbe_reinit_locked(adapter);
3660 		else
3661 			ixgbe_reset(adapter);
3662 	}
3663 
3664 	return 0;
3665 }
3666 
ixgbe_get_priv_flags(struct net_device * netdev)3667 static u32 ixgbe_get_priv_flags(struct net_device *netdev)
3668 {
3669 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3670 	u32 priv_flags = 0;
3671 
3672 	if (adapter->flags2 & IXGBE_FLAG2_RX_LEGACY)
3673 		priv_flags |= IXGBE_PRIV_FLAGS_LEGACY_RX;
3674 
3675 	if (adapter->flags2 & IXGBE_FLAG2_VF_IPSEC_ENABLED)
3676 		priv_flags |= IXGBE_PRIV_FLAGS_VF_IPSEC_EN;
3677 
3678 	if (adapter->flags2 & IXGBE_FLAG2_AUTO_DISABLE_VF)
3679 		priv_flags |= IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF;
3680 
3681 	return priv_flags;
3682 }
3683 
ixgbe_set_priv_flags(struct net_device * netdev,u32 priv_flags)3684 static int ixgbe_set_priv_flags(struct net_device *netdev, u32 priv_flags)
3685 {
3686 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3687 	unsigned int flags2 = adapter->flags2;
3688 	unsigned int i;
3689 
3690 	flags2 &= ~IXGBE_FLAG2_RX_LEGACY;
3691 	if (priv_flags & IXGBE_PRIV_FLAGS_LEGACY_RX)
3692 		flags2 |= IXGBE_FLAG2_RX_LEGACY;
3693 
3694 	flags2 &= ~IXGBE_FLAG2_VF_IPSEC_ENABLED;
3695 	if (priv_flags & IXGBE_PRIV_FLAGS_VF_IPSEC_EN)
3696 		flags2 |= IXGBE_FLAG2_VF_IPSEC_ENABLED;
3697 
3698 	flags2 &= ~IXGBE_FLAG2_AUTO_DISABLE_VF;
3699 	if (priv_flags & IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF) {
3700 		if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
3701 			/* Reset primary abort counter */
3702 			for (i = 0; i < adapter->num_vfs; i++)
3703 				adapter->vfinfo[i].primary_abort_count = 0;
3704 
3705 			flags2 |= IXGBE_FLAG2_AUTO_DISABLE_VF;
3706 		} else {
3707 			e_info(probe,
3708 			       "Cannot set private flags: Operation not supported\n");
3709 			return -EOPNOTSUPP;
3710 		}
3711 	}
3712 
3713 	if (flags2 != adapter->flags2) {
3714 		adapter->flags2 = flags2;
3715 
3716 		/* reset interface to repopulate queues */
3717 		if (netif_running(netdev))
3718 			ixgbe_reinit_locked(adapter);
3719 	}
3720 
3721 	return 0;
3722 }
3723 
3724 static const struct ethtool_ops ixgbe_ethtool_ops = {
3725 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
3726 	.get_drvinfo            = ixgbe_get_drvinfo,
3727 	.get_regs_len           = ixgbe_get_regs_len,
3728 	.get_regs               = ixgbe_get_regs,
3729 	.get_wol                = ixgbe_get_wol,
3730 	.set_wol                = ixgbe_set_wol,
3731 	.nway_reset             = ixgbe_nway_reset,
3732 	.get_link               = ethtool_op_get_link,
3733 	.get_link_ext_stats	= ixgbe_get_link_ext_stats,
3734 	.get_eeprom_len         = ixgbe_get_eeprom_len,
3735 	.get_eeprom             = ixgbe_get_eeprom,
3736 	.set_eeprom             = ixgbe_set_eeprom,
3737 	.get_ringparam          = ixgbe_get_ringparam,
3738 	.set_ringparam          = ixgbe_set_ringparam,
3739 	.get_pause_stats	= ixgbe_get_pause_stats,
3740 	.get_pauseparam         = ixgbe_get_pauseparam,
3741 	.set_pauseparam         = ixgbe_set_pauseparam,
3742 	.get_msglevel           = ixgbe_get_msglevel,
3743 	.set_msglevel           = ixgbe_set_msglevel,
3744 	.self_test              = ixgbe_diag_test,
3745 	.get_strings            = ixgbe_get_strings,
3746 	.set_phys_id            = ixgbe_set_phys_id,
3747 	.get_sset_count         = ixgbe_get_sset_count,
3748 	.get_ethtool_stats      = ixgbe_get_ethtool_stats,
3749 	.get_coalesce           = ixgbe_get_coalesce,
3750 	.set_coalesce           = ixgbe_set_coalesce,
3751 	.get_rx_ring_count	= ixgbe_get_rx_ring_count,
3752 	.get_rxnfc		= ixgbe_get_rxnfc,
3753 	.set_rxnfc		= ixgbe_set_rxnfc,
3754 	.get_rxfh_indir_size	= ixgbe_rss_indir_size,
3755 	.get_rxfh_key_size	= ixgbe_get_rxfh_key_size,
3756 	.get_rxfh		= ixgbe_get_rxfh,
3757 	.set_rxfh		= ixgbe_set_rxfh,
3758 	.get_rxfh_fields	= ixgbe_get_rxfh_fields,
3759 	.set_rxfh_fields	= ixgbe_set_rxfh_fields,
3760 	.get_eee		= ixgbe_get_eee,
3761 	.set_eee		= ixgbe_set_eee,
3762 	.get_channels		= ixgbe_get_channels,
3763 	.set_channels		= ixgbe_set_channels,
3764 	.get_priv_flags		= ixgbe_get_priv_flags,
3765 	.set_priv_flags		= ixgbe_set_priv_flags,
3766 	.get_ts_info		= ixgbe_get_ts_info,
3767 	.get_module_info	= ixgbe_get_module_info,
3768 	.get_module_eeprom	= ixgbe_get_module_eeprom,
3769 	.get_link_ksettings     = ixgbe_get_link_ksettings,
3770 	.set_link_ksettings     = ixgbe_set_link_ksettings,
3771 };
3772 
3773 static const struct ethtool_ops ixgbe_ethtool_ops_e610 = {
3774 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
3775 	.get_drvinfo            = ixgbe_get_drvinfo,
3776 	.get_regs_len           = ixgbe_get_regs_len,
3777 	.get_regs               = ixgbe_get_regs,
3778 	.get_wol                = ixgbe_get_wol,
3779 	.set_wol                = ixgbe_set_wol_e610,
3780 	.nway_reset             = ixgbe_nway_reset,
3781 	.get_link               = ethtool_op_get_link,
3782 	.get_link_ext_stats	= ixgbe_get_link_ext_stats,
3783 	.get_eeprom_len         = ixgbe_get_eeprom_len,
3784 	.get_eeprom             = ixgbe_get_eeprom,
3785 	.set_eeprom             = ixgbe_set_eeprom,
3786 	.get_ringparam          = ixgbe_get_ringparam,
3787 	.set_ringparam          = ixgbe_set_ringparam,
3788 	.get_pause_stats	= ixgbe_get_pause_stats,
3789 	.get_pauseparam         = ixgbe_get_pauseparam,
3790 	.set_pauseparam         = ixgbe_set_pauseparam_e610,
3791 	.get_msglevel           = ixgbe_get_msglevel,
3792 	.set_msglevel           = ixgbe_set_msglevel,
3793 	.self_test              = ixgbe_diag_test,
3794 	.get_strings            = ixgbe_get_strings,
3795 	.set_phys_id            = ixgbe_set_phys_id_e610,
3796 	.get_sset_count         = ixgbe_get_sset_count,
3797 	.get_ethtool_stats      = ixgbe_get_ethtool_stats,
3798 	.get_coalesce           = ixgbe_get_coalesce,
3799 	.set_coalesce           = ixgbe_set_coalesce,
3800 	.get_rx_ring_count	= ixgbe_get_rx_ring_count,
3801 	.get_rxnfc		= ixgbe_get_rxnfc,
3802 	.set_rxnfc		= ixgbe_set_rxnfc,
3803 	.get_rxfh_indir_size	= ixgbe_rss_indir_size,
3804 	.get_rxfh_key_size	= ixgbe_get_rxfh_key_size,
3805 	.get_rxfh		= ixgbe_get_rxfh,
3806 	.set_rxfh		= ixgbe_set_rxfh,
3807 	.get_rxfh_fields	= ixgbe_get_rxfh_fields,
3808 	.set_rxfh_fields	= ixgbe_set_rxfh_fields,
3809 	.get_eee		= ixgbe_get_eee,
3810 	.set_eee		= ixgbe_set_eee,
3811 	.get_channels		= ixgbe_get_channels,
3812 	.set_channels		= ixgbe_set_channels,
3813 	.get_priv_flags		= ixgbe_get_priv_flags,
3814 	.set_priv_flags		= ixgbe_set_priv_flags,
3815 	.get_ts_info		= ixgbe_get_ts_info,
3816 	.get_module_info	= ixgbe_get_module_info,
3817 	.get_module_eeprom	= ixgbe_get_module_eeprom,
3818 	.get_link_ksettings     = ixgbe_get_link_ksettings,
3819 	.set_link_ksettings     = ixgbe_set_link_ksettings,
3820 };
3821 
ixgbe_set_ethtool_ops(struct net_device * netdev)3822 void ixgbe_set_ethtool_ops(struct net_device *netdev)
3823 {
3824 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
3825 
3826 	if (adapter->hw.mac.type == ixgbe_mac_e610)
3827 		netdev->ethtool_ops = &ixgbe_ethtool_ops_e610;
3828 	else
3829 		netdev->ethtool_ops = &ixgbe_ethtool_ops;
3830 }
3831