1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 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 = netdev_priv(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 			ethtool_link_ksettings_add_link_mode(cmd, supported,
353 							     FIBRE);
354 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
355 							     FIBRE);
356 			cmd->base.port = PORT_FIBRE;
357 			break;
358 		case ixgbe_sfp_type_not_present:
359 			ethtool_link_ksettings_add_link_mode(cmd, supported,
360 							     FIBRE);
361 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
362 							     FIBRE);
363 			cmd->base.port = PORT_NONE;
364 			break;
365 		case ixgbe_sfp_type_1g_cu_core0:
366 		case ixgbe_sfp_type_1g_cu_core1:
367 			ethtool_link_ksettings_add_link_mode(cmd, supported,
368 							     TP);
369 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
370 							     TP);
371 			cmd->base.port = PORT_TP;
372 			break;
373 		case ixgbe_sfp_type_unknown:
374 		default:
375 			ethtool_link_ksettings_add_link_mode(cmd, supported,
376 							     FIBRE);
377 			ethtool_link_ksettings_add_link_mode(cmd, advertising,
378 							     FIBRE);
379 			cmd->base.port = PORT_OTHER;
380 			break;
381 		}
382 		break;
383 	case ixgbe_phy_xaui:
384 		ethtool_link_ksettings_add_link_mode(cmd, supported,
385 						     FIBRE);
386 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
387 						     FIBRE);
388 		cmd->base.port = PORT_NONE;
389 		break;
390 	case ixgbe_phy_unknown:
391 	case ixgbe_phy_generic:
392 	case ixgbe_phy_sfp_unsupported:
393 	default:
394 		ethtool_link_ksettings_add_link_mode(cmd, supported,
395 						     FIBRE);
396 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
397 						     FIBRE);
398 		cmd->base.port = PORT_OTHER;
399 		break;
400 	}
401 
402 	/* Indicate pause support */
403 	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
404 
405 	switch (hw->fc.requested_mode) {
406 	case ixgbe_fc_full:
407 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
408 		break;
409 	case ixgbe_fc_rx_pause:
410 		ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
411 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
412 						     Asym_Pause);
413 		break;
414 	case ixgbe_fc_tx_pause:
415 		ethtool_link_ksettings_add_link_mode(cmd, advertising,
416 						     Asym_Pause);
417 		break;
418 	default:
419 		ethtool_link_ksettings_del_link_mode(cmd, advertising, Pause);
420 		ethtool_link_ksettings_del_link_mode(cmd, advertising,
421 						     Asym_Pause);
422 	}
423 
424 	if (netif_carrier_ok(netdev)) {
425 		switch (adapter->link_speed) {
426 		case IXGBE_LINK_SPEED_10GB_FULL:
427 			cmd->base.speed = SPEED_10000;
428 			break;
429 		case IXGBE_LINK_SPEED_5GB_FULL:
430 			cmd->base.speed = SPEED_5000;
431 			break;
432 		case IXGBE_LINK_SPEED_2_5GB_FULL:
433 			cmd->base.speed = SPEED_2500;
434 			break;
435 		case IXGBE_LINK_SPEED_1GB_FULL:
436 			cmd->base.speed = SPEED_1000;
437 			break;
438 		case IXGBE_LINK_SPEED_100_FULL:
439 			cmd->base.speed = SPEED_100;
440 			break;
441 		case IXGBE_LINK_SPEED_10_FULL:
442 			cmd->base.speed = SPEED_10;
443 			break;
444 		default:
445 			break;
446 		}
447 		cmd->base.duplex = DUPLEX_FULL;
448 	} else {
449 		cmd->base.speed = SPEED_UNKNOWN;
450 		cmd->base.duplex = DUPLEX_UNKNOWN;
451 	}
452 
453 	return 0;
454 }
455 
ixgbe_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)456 static int ixgbe_set_link_ksettings(struct net_device *netdev,
457 				    const struct ethtool_link_ksettings *cmd)
458 {
459 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
460 	struct ixgbe_hw *hw = &adapter->hw;
461 	u32 advertised, old;
462 	s32 err = 0;
463 
464 	if ((hw->phy.media_type == ixgbe_media_type_copper) ||
465 	    (hw->phy.multispeed_fiber)) {
466 		/*
467 		 * this function does not support duplex forcing, but can
468 		 * limit the advertising of the adapter to the specified speed
469 		 */
470 		if (!linkmode_subset(cmd->link_modes.advertising,
471 				     cmd->link_modes.supported))
472 			return -EINVAL;
473 
474 		/* only allow one speed at a time if no autoneg */
475 		if (!cmd->base.autoneg && hw->phy.multispeed_fiber) {
476 			if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
477 								  10000baseT_Full) &&
478 			    ethtool_link_ksettings_test_link_mode(cmd, advertising,
479 								  1000baseT_Full))
480 				return -EINVAL;
481 		}
482 
483 		old = hw->phy.autoneg_advertised;
484 		advertised = 0;
485 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
486 							  10000baseT_Full))
487 			advertised |= IXGBE_LINK_SPEED_10GB_FULL;
488 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
489 							  5000baseT_Full))
490 			advertised |= IXGBE_LINK_SPEED_5GB_FULL;
491 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
492 							  2500baseT_Full))
493 			advertised |= IXGBE_LINK_SPEED_2_5GB_FULL;
494 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
495 							  1000baseT_Full))
496 			advertised |= IXGBE_LINK_SPEED_1GB_FULL;
497 
498 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
499 							  100baseT_Full))
500 			advertised |= IXGBE_LINK_SPEED_100_FULL;
501 
502 		if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
503 							  10baseT_Full))
504 			advertised |= IXGBE_LINK_SPEED_10_FULL;
505 
506 		if (old == advertised)
507 			return err;
508 		/* this sets the link speed and restarts auto-neg */
509 		while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
510 			usleep_range(1000, 2000);
511 
512 		hw->mac.autotry_restart = true;
513 		err = hw->mac.ops.setup_link(hw, advertised, true);
514 		if (err) {
515 			e_info(probe, "setup link failed with code %d\n", err);
516 			hw->mac.ops.setup_link(hw, old, true);
517 		}
518 		clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
519 	} else {
520 		/* in this case we currently only support 10Gb/FULL */
521 		u32 speed = cmd->base.speed;
522 
523 		if ((cmd->base.autoneg == AUTONEG_ENABLE) ||
524 		    (!ethtool_link_ksettings_test_link_mode(cmd, advertising,
525 							    10000baseT_Full)) ||
526 		    (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
527 			return -EINVAL;
528 	}
529 
530 	return err;
531 }
532 
ixgbe_get_pause_stats(struct net_device * netdev,struct ethtool_pause_stats * stats)533 static void ixgbe_get_pause_stats(struct net_device *netdev,
534 				  struct ethtool_pause_stats *stats)
535 {
536 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
537 	struct ixgbe_hw_stats *hwstats = &adapter->stats;
538 
539 	stats->tx_pause_frames = hwstats->lxontxc + hwstats->lxofftxc;
540 	stats->rx_pause_frames = hwstats->lxonrxc + hwstats->lxoffrxc;
541 }
542 
ixgbe_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)543 static void ixgbe_get_pauseparam(struct net_device *netdev,
544 				 struct ethtool_pauseparam *pause)
545 {
546 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
547 	struct ixgbe_hw *hw = &adapter->hw;
548 
549 	if (ixgbe_device_supports_autoneg_fc(hw) &&
550 	    !hw->fc.disable_fc_autoneg)
551 		pause->autoneg = 1;
552 	else
553 		pause->autoneg = 0;
554 
555 	if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
556 		pause->rx_pause = 1;
557 	} else if (hw->fc.current_mode == ixgbe_fc_tx_pause) {
558 		pause->tx_pause = 1;
559 	} else if (hw->fc.current_mode == ixgbe_fc_full) {
560 		pause->rx_pause = 1;
561 		pause->tx_pause = 1;
562 	}
563 }
564 
ixgbe_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)565 static int ixgbe_set_pauseparam(struct net_device *netdev,
566 				struct ethtool_pauseparam *pause)
567 {
568 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
569 	struct ixgbe_hw *hw = &adapter->hw;
570 	struct ixgbe_fc_info fc = hw->fc;
571 
572 	/* 82598 does no support link flow control with DCB enabled */
573 	if ((hw->mac.type == ixgbe_mac_82598EB) &&
574 	    (adapter->flags & IXGBE_FLAG_DCB_ENABLED))
575 		return -EINVAL;
576 
577 	/* some devices do not support autoneg of link flow control */
578 	if ((pause->autoneg == AUTONEG_ENABLE) &&
579 	    !ixgbe_device_supports_autoneg_fc(hw))
580 		return -EINVAL;
581 
582 	fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE);
583 
584 	if ((pause->rx_pause && pause->tx_pause) || pause->autoneg)
585 		fc.requested_mode = ixgbe_fc_full;
586 	else if (pause->rx_pause && !pause->tx_pause)
587 		fc.requested_mode = ixgbe_fc_rx_pause;
588 	else if (!pause->rx_pause && pause->tx_pause)
589 		fc.requested_mode = ixgbe_fc_tx_pause;
590 	else
591 		fc.requested_mode = ixgbe_fc_none;
592 
593 	/* if the thing changed then we'll update and use new autoneg */
594 	if (memcmp(&fc, &hw->fc, sizeof(struct ixgbe_fc_info))) {
595 		hw->fc = fc;
596 		if (netif_running(netdev))
597 			ixgbe_reinit_locked(adapter);
598 		else
599 			ixgbe_reset(adapter);
600 	}
601 
602 	return 0;
603 }
604 
ixgbe_get_msglevel(struct net_device * netdev)605 static u32 ixgbe_get_msglevel(struct net_device *netdev)
606 {
607 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
608 	return adapter->msg_enable;
609 }
610 
ixgbe_set_msglevel(struct net_device * netdev,u32 data)611 static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
612 {
613 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
614 	adapter->msg_enable = data;
615 }
616 
ixgbe_get_regs_len(struct net_device * netdev)617 static int ixgbe_get_regs_len(struct net_device *netdev)
618 {
619 #define IXGBE_REGS_LEN  1145
620 	return IXGBE_REGS_LEN * sizeof(u32);
621 }
622 
623 #define IXGBE_GET_STAT(_A_, _R_) _A_->stats._R_
624 
ixgbe_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)625 static void ixgbe_get_regs(struct net_device *netdev,
626 			   struct ethtool_regs *regs, void *p)
627 {
628 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
629 	struct ixgbe_hw *hw = &adapter->hw;
630 	u32 *regs_buff = p;
631 	u8 i;
632 
633 	memset(p, 0, IXGBE_REGS_LEN * sizeof(u32));
634 
635 	regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
636 			hw->device_id;
637 
638 	/* General Registers */
639 	regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_CTRL);
640 	regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_STATUS);
641 	regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
642 	regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_ESDP);
643 	regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_EODSDP);
644 	regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
645 	regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_FRTIMER);
646 	regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_TCPTIMER);
647 
648 	/* NVM Register */
649 	regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
650 	regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_EERD);
651 	regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_FLA(hw));
652 	regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_EEMNGCTL);
653 	regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_EEMNGDATA);
654 	regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_FLMNGCTL);
655 	regs_buff[14] = IXGBE_READ_REG(hw, IXGBE_FLMNGDATA);
656 	regs_buff[15] = IXGBE_READ_REG(hw, IXGBE_FLMNGCNT);
657 	regs_buff[16] = IXGBE_READ_REG(hw, IXGBE_FLOP);
658 	regs_buff[17] = IXGBE_READ_REG(hw, IXGBE_GRC(hw));
659 
660 	/* Interrupt */
661 	/* don't read EICR because it can clear interrupt causes, instead
662 	 * read EICS which is a shadow but doesn't clear EICR */
663 	regs_buff[18] = IXGBE_READ_REG(hw, IXGBE_EICS);
664 	regs_buff[19] = IXGBE_READ_REG(hw, IXGBE_EICS);
665 	regs_buff[20] = IXGBE_READ_REG(hw, IXGBE_EIMS);
666 	regs_buff[21] = IXGBE_READ_REG(hw, IXGBE_EIMC);
667 	regs_buff[22] = IXGBE_READ_REG(hw, IXGBE_EIAC);
668 	regs_buff[23] = IXGBE_READ_REG(hw, IXGBE_EIAM);
669 	regs_buff[24] = IXGBE_READ_REG(hw, IXGBE_EITR(0));
670 	regs_buff[25] = IXGBE_READ_REG(hw, IXGBE_IVAR(0));
671 	regs_buff[26] = IXGBE_READ_REG(hw, IXGBE_MSIXT);
672 	regs_buff[27] = IXGBE_READ_REG(hw, IXGBE_MSIXPBA);
673 	regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_PBACL(0));
674 	regs_buff[29] = IXGBE_READ_REG(hw, IXGBE_GPIE);
675 
676 	/* Flow Control */
677 	regs_buff[30] = IXGBE_READ_REG(hw, IXGBE_PFCTOP);
678 	for (i = 0; i < 4; i++)
679 		regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_FCTTV(i));
680 	for (i = 0; i < 8; i++) {
681 		switch (hw->mac.type) {
682 		case ixgbe_mac_82598EB:
683 			regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL(i));
684 			regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH(i));
685 			break;
686 		case ixgbe_mac_82599EB:
687 		case ixgbe_mac_X540:
688 		case ixgbe_mac_X550:
689 		case ixgbe_mac_X550EM_x:
690 		case ixgbe_mac_x550em_a:
691 			regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL_82599(i));
692 			regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH_82599(i));
693 			break;
694 		default:
695 			break;
696 		}
697 	}
698 	regs_buff[51] = IXGBE_READ_REG(hw, IXGBE_FCRTV);
699 	regs_buff[52] = IXGBE_READ_REG(hw, IXGBE_TFCS);
700 
701 	/* Receive DMA */
702 	for (i = 0; i < 64; i++)
703 		regs_buff[53 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
704 	for (i = 0; i < 64; i++)
705 		regs_buff[117 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
706 	for (i = 0; i < 64; i++)
707 		regs_buff[181 + i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
708 	for (i = 0; i < 64; i++)
709 		regs_buff[245 + i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
710 	for (i = 0; i < 64; i++)
711 		regs_buff[309 + i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
712 	for (i = 0; i < 64; i++)
713 		regs_buff[373 + i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
714 	for (i = 0; i < 16; i++)
715 		regs_buff[437 + i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
716 	for (i = 0; i < 16; i++)
717 		regs_buff[453 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
718 	regs_buff[469] = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
719 	for (i = 0; i < 8; i++)
720 		regs_buff[470 + i] = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
721 	regs_buff[478] = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
722 	regs_buff[479] = IXGBE_READ_REG(hw, IXGBE_DROPEN);
723 
724 	/* Receive */
725 	regs_buff[480] = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
726 	regs_buff[481] = IXGBE_READ_REG(hw, IXGBE_RFCTL);
727 	for (i = 0; i < 16; i++)
728 		regs_buff[482 + i] = IXGBE_READ_REG(hw, IXGBE_RAL(i));
729 	for (i = 0; i < 16; i++)
730 		regs_buff[498 + i] = IXGBE_READ_REG(hw, IXGBE_RAH(i));
731 	regs_buff[514] = IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0));
732 	regs_buff[515] = IXGBE_READ_REG(hw, IXGBE_FCTRL);
733 	regs_buff[516] = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
734 	regs_buff[517] = IXGBE_READ_REG(hw, IXGBE_MCSTCTRL);
735 	regs_buff[518] = IXGBE_READ_REG(hw, IXGBE_MRQC);
736 	regs_buff[519] = IXGBE_READ_REG(hw, IXGBE_VMD_CTL);
737 	for (i = 0; i < 8; i++)
738 		regs_buff[520 + i] = IXGBE_READ_REG(hw, IXGBE_IMIR(i));
739 	for (i = 0; i < 8; i++)
740 		regs_buff[528 + i] = IXGBE_READ_REG(hw, IXGBE_IMIREXT(i));
741 	regs_buff[536] = IXGBE_READ_REG(hw, IXGBE_IMIRVP);
742 
743 	/* Transmit */
744 	for (i = 0; i < 32; i++)
745 		regs_buff[537 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
746 	for (i = 0; i < 32; i++)
747 		regs_buff[569 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
748 	for (i = 0; i < 32; i++)
749 		regs_buff[601 + i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
750 	for (i = 0; i < 32; i++)
751 		regs_buff[633 + i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
752 	for (i = 0; i < 32; i++)
753 		regs_buff[665 + i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
754 	for (i = 0; i < 32; i++)
755 		regs_buff[697 + i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
756 	for (i = 0; i < 32; i++)
757 		regs_buff[729 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAL(i));
758 	for (i = 0; i < 32; i++)
759 		regs_buff[761 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAH(i));
760 	regs_buff[793] = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
761 	for (i = 0; i < 16; i++)
762 		regs_buff[794 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
763 	regs_buff[810] = IXGBE_READ_REG(hw, IXGBE_TIPG);
764 	for (i = 0; i < 8; i++)
765 		regs_buff[811 + i] = IXGBE_READ_REG(hw, IXGBE_TXPBSIZE(i));
766 	regs_buff[819] = IXGBE_READ_REG(hw, IXGBE_MNGTXMAP);
767 
768 	/* Wake Up */
769 	regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
770 	regs_buff[821] = IXGBE_READ_REG(hw, IXGBE_WUFC);
771 	regs_buff[822] = IXGBE_READ_REG(hw, IXGBE_WUS);
772 	regs_buff[823] = IXGBE_READ_REG(hw, IXGBE_IPAV);
773 	regs_buff[824] = IXGBE_READ_REG(hw, IXGBE_IP4AT);
774 	regs_buff[825] = IXGBE_READ_REG(hw, IXGBE_IP6AT);
775 	regs_buff[826] = IXGBE_READ_REG(hw, IXGBE_WUPL);
776 	regs_buff[827] = IXGBE_READ_REG(hw, IXGBE_WUPM);
777 	regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));
778 
779 	/* DCB */
780 	regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);   /* same as FCCFG  */
781 	regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS); /* same as RTTPCS */
782 
783 	switch (hw->mac.type) {
784 	case ixgbe_mac_82598EB:
785 		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
786 		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
787 		for (i = 0; i < 8; i++)
788 			regs_buff[833 + i] =
789 				IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
790 		for (i = 0; i < 8; i++)
791 			regs_buff[841 + i] =
792 				IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
793 		for (i = 0; i < 8; i++)
794 			regs_buff[849 + i] =
795 				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
796 		for (i = 0; i < 8; i++)
797 			regs_buff[857 + i] =
798 				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
799 		break;
800 	case ixgbe_mac_82599EB:
801 	case ixgbe_mac_X540:
802 	case ixgbe_mac_X550:
803 	case ixgbe_mac_X550EM_x:
804 	case ixgbe_mac_x550em_a:
805 		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
806 		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RTRPCS);
807 		for (i = 0; i < 8; i++)
808 			regs_buff[833 + i] =
809 				IXGBE_READ_REG(hw, IXGBE_RTRPT4C(i));
810 		for (i = 0; i < 8; i++)
811 			regs_buff[841 + i] =
812 				IXGBE_READ_REG(hw, IXGBE_RTRPT4S(i));
813 		for (i = 0; i < 8; i++)
814 			regs_buff[849 + i] =
815 				IXGBE_READ_REG(hw, IXGBE_RTTDT2C(i));
816 		for (i = 0; i < 8; i++)
817 			regs_buff[857 + i] =
818 				IXGBE_READ_REG(hw, IXGBE_RTTDT2S(i));
819 		break;
820 	default:
821 		break;
822 	}
823 
824 	for (i = 0; i < 8; i++)
825 		regs_buff[865 + i] =
826 		IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i)); /* same as RTTPT2C */
827 	for (i = 0; i < 8; i++)
828 		regs_buff[873 + i] =
829 		IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i)); /* same as RTTPT2S */
830 
831 	/* Statistics */
832 	regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
833 	regs_buff[882] = IXGBE_GET_STAT(adapter, illerrc);
834 	regs_buff[883] = IXGBE_GET_STAT(adapter, errbc);
835 	regs_buff[884] = IXGBE_GET_STAT(adapter, mspdc);
836 	for (i = 0; i < 8; i++)
837 		regs_buff[885 + i] = IXGBE_GET_STAT(adapter, mpc[i]);
838 	regs_buff[893] = IXGBE_GET_STAT(adapter, mlfc);
839 	regs_buff[894] = IXGBE_GET_STAT(adapter, mrfc);
840 	regs_buff[895] = IXGBE_GET_STAT(adapter, rlec);
841 	regs_buff[896] = IXGBE_GET_STAT(adapter, lxontxc);
842 	regs_buff[897] = IXGBE_GET_STAT(adapter, lxonrxc);
843 	regs_buff[898] = IXGBE_GET_STAT(adapter, lxofftxc);
844 	regs_buff[899] = IXGBE_GET_STAT(adapter, lxoffrxc);
845 	for (i = 0; i < 8; i++)
846 		regs_buff[900 + i] = IXGBE_GET_STAT(adapter, pxontxc[i]);
847 	for (i = 0; i < 8; i++)
848 		regs_buff[908 + i] = IXGBE_GET_STAT(adapter, pxonrxc[i]);
849 	for (i = 0; i < 8; i++)
850 		regs_buff[916 + i] = IXGBE_GET_STAT(adapter, pxofftxc[i]);
851 	for (i = 0; i < 8; i++)
852 		regs_buff[924 + i] = IXGBE_GET_STAT(adapter, pxoffrxc[i]);
853 	regs_buff[932] = IXGBE_GET_STAT(adapter, prc64);
854 	regs_buff[933] = IXGBE_GET_STAT(adapter, prc127);
855 	regs_buff[934] = IXGBE_GET_STAT(adapter, prc255);
856 	regs_buff[935] = IXGBE_GET_STAT(adapter, prc511);
857 	regs_buff[936] = IXGBE_GET_STAT(adapter, prc1023);
858 	regs_buff[937] = IXGBE_GET_STAT(adapter, prc1522);
859 	regs_buff[938] = IXGBE_GET_STAT(adapter, gprc);
860 	regs_buff[939] = IXGBE_GET_STAT(adapter, bprc);
861 	regs_buff[940] = IXGBE_GET_STAT(adapter, mprc);
862 	regs_buff[941] = IXGBE_GET_STAT(adapter, gptc);
863 	regs_buff[942] = (u32)IXGBE_GET_STAT(adapter, gorc);
864 	regs_buff[943] = (u32)(IXGBE_GET_STAT(adapter, gorc) >> 32);
865 	regs_buff[944] = (u32)IXGBE_GET_STAT(adapter, gotc);
866 	regs_buff[945] = (u32)(IXGBE_GET_STAT(adapter, gotc) >> 32);
867 	for (i = 0; i < 8; i++)
868 		regs_buff[946 + i] = IXGBE_GET_STAT(adapter, rnbc[i]);
869 	regs_buff[954] = IXGBE_GET_STAT(adapter, ruc);
870 	regs_buff[955] = IXGBE_GET_STAT(adapter, rfc);
871 	regs_buff[956] = IXGBE_GET_STAT(adapter, roc);
872 	regs_buff[957] = IXGBE_GET_STAT(adapter, rjc);
873 	regs_buff[958] = IXGBE_GET_STAT(adapter, mngprc);
874 	regs_buff[959] = IXGBE_GET_STAT(adapter, mngpdc);
875 	regs_buff[960] = IXGBE_GET_STAT(adapter, mngptc);
876 	regs_buff[961] = (u32)IXGBE_GET_STAT(adapter, tor);
877 	regs_buff[962] = (u32)(IXGBE_GET_STAT(adapter, tor) >> 32);
878 	regs_buff[963] = IXGBE_GET_STAT(adapter, tpr);
879 	regs_buff[964] = IXGBE_GET_STAT(adapter, tpt);
880 	regs_buff[965] = IXGBE_GET_STAT(adapter, ptc64);
881 	regs_buff[966] = IXGBE_GET_STAT(adapter, ptc127);
882 	regs_buff[967] = IXGBE_GET_STAT(adapter, ptc255);
883 	regs_buff[968] = IXGBE_GET_STAT(adapter, ptc511);
884 	regs_buff[969] = IXGBE_GET_STAT(adapter, ptc1023);
885 	regs_buff[970] = IXGBE_GET_STAT(adapter, ptc1522);
886 	regs_buff[971] = IXGBE_GET_STAT(adapter, mptc);
887 	regs_buff[972] = IXGBE_GET_STAT(adapter, bptc);
888 	regs_buff[973] = IXGBE_GET_STAT(adapter, xec);
889 	for (i = 0; i < 16; i++)
890 		regs_buff[974 + i] = IXGBE_GET_STAT(adapter, qprc[i]);
891 	for (i = 0; i < 16; i++)
892 		regs_buff[990 + i] = IXGBE_GET_STAT(adapter, qptc[i]);
893 	for (i = 0; i < 16; i++)
894 		regs_buff[1006 + i] = IXGBE_GET_STAT(adapter, qbrc[i]);
895 	for (i = 0; i < 16; i++)
896 		regs_buff[1022 + i] = IXGBE_GET_STAT(adapter, qbtc[i]);
897 
898 	/* MAC */
899 	regs_buff[1038] = IXGBE_READ_REG(hw, IXGBE_PCS1GCFIG);
900 	regs_buff[1039] = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
901 	regs_buff[1040] = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
902 	regs_buff[1041] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG0);
903 	regs_buff[1042] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG1);
904 	regs_buff[1043] = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
905 	regs_buff[1044] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
906 	regs_buff[1045] = IXGBE_READ_REG(hw, IXGBE_PCS1GANNP);
907 	regs_buff[1046] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLPNP);
908 	regs_buff[1047] = IXGBE_READ_REG(hw, IXGBE_HLREG0);
909 	regs_buff[1048] = IXGBE_READ_REG(hw, IXGBE_HLREG1);
910 	regs_buff[1049] = IXGBE_READ_REG(hw, IXGBE_PAP);
911 	regs_buff[1050] = IXGBE_READ_REG(hw, IXGBE_MACA);
912 	regs_buff[1051] = IXGBE_READ_REG(hw, IXGBE_APAE);
913 	regs_buff[1052] = IXGBE_READ_REG(hw, IXGBE_ARD);
914 	regs_buff[1053] = IXGBE_READ_REG(hw, IXGBE_AIS);
915 	regs_buff[1054] = IXGBE_READ_REG(hw, IXGBE_MSCA);
916 	regs_buff[1055] = IXGBE_READ_REG(hw, IXGBE_MSRWD);
917 	regs_buff[1056] = IXGBE_READ_REG(hw, IXGBE_MLADD);
918 	regs_buff[1057] = IXGBE_READ_REG(hw, IXGBE_MHADD);
919 	regs_buff[1058] = IXGBE_READ_REG(hw, IXGBE_TREG);
920 	regs_buff[1059] = IXGBE_READ_REG(hw, IXGBE_PCSS1);
921 	regs_buff[1060] = IXGBE_READ_REG(hw, IXGBE_PCSS2);
922 	regs_buff[1061] = IXGBE_READ_REG(hw, IXGBE_XPCSS);
923 	regs_buff[1062] = IXGBE_READ_REG(hw, IXGBE_SERDESC);
924 	regs_buff[1063] = IXGBE_READ_REG(hw, IXGBE_MACS);
925 	regs_buff[1064] = IXGBE_READ_REG(hw, IXGBE_AUTOC);
926 	regs_buff[1065] = IXGBE_READ_REG(hw, IXGBE_LINKS);
927 	regs_buff[1066] = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
928 	regs_buff[1067] = IXGBE_READ_REG(hw, IXGBE_AUTOC3);
929 	regs_buff[1068] = IXGBE_READ_REG(hw, IXGBE_ANLP1);
930 	regs_buff[1069] = IXGBE_READ_REG(hw, IXGBE_ANLP2);
931 	regs_buff[1070] = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
932 
933 	/* Diagnostic */
934 	regs_buff[1071] = IXGBE_READ_REG(hw, IXGBE_RDSTATCTL);
935 	for (i = 0; i < 8; i++)
936 		regs_buff[1072 + i] = IXGBE_READ_REG(hw, IXGBE_RDSTAT(i));
937 	regs_buff[1080] = IXGBE_READ_REG(hw, IXGBE_RDHMPN);
938 	for (i = 0; i < 4; i++)
939 		regs_buff[1081 + i] = IXGBE_READ_REG(hw, IXGBE_RIC_DW(i));
940 	regs_buff[1085] = IXGBE_READ_REG(hw, IXGBE_RDPROBE);
941 	regs_buff[1086] = IXGBE_READ_REG(hw, IXGBE_TDSTATCTL);
942 	for (i = 0; i < 8; i++)
943 		regs_buff[1087 + i] = IXGBE_READ_REG(hw, IXGBE_TDSTAT(i));
944 	regs_buff[1095] = IXGBE_READ_REG(hw, IXGBE_TDHMPN);
945 	for (i = 0; i < 4; i++)
946 		regs_buff[1096 + i] = IXGBE_READ_REG(hw, IXGBE_TIC_DW(i));
947 	regs_buff[1100] = IXGBE_READ_REG(hw, IXGBE_TDPROBE);
948 	regs_buff[1101] = IXGBE_READ_REG(hw, IXGBE_TXBUFCTRL);
949 	for (i = 0; i < 4; i++)
950 		regs_buff[1102 + i] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA(i));
951 	regs_buff[1106] = IXGBE_READ_REG(hw, IXGBE_RXBUFCTRL);
952 	for (i = 0; i < 4; i++)
953 		regs_buff[1107 + i] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA(i));
954 	for (i = 0; i < 8; i++)
955 		regs_buff[1111 + i] = IXGBE_READ_REG(hw, IXGBE_PCIE_DIAG(i));
956 	regs_buff[1119] = IXGBE_READ_REG(hw, IXGBE_RFVAL);
957 	regs_buff[1120] = IXGBE_READ_REG(hw, IXGBE_MDFTC1);
958 	regs_buff[1121] = IXGBE_READ_REG(hw, IXGBE_MDFTC2);
959 	regs_buff[1122] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO1);
960 	regs_buff[1123] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO2);
961 	regs_buff[1124] = IXGBE_READ_REG(hw, IXGBE_MDFTS);
962 	regs_buff[1125] = IXGBE_READ_REG(hw, IXGBE_PCIEECCCTL);
963 	regs_buff[1126] = IXGBE_READ_REG(hw, IXGBE_PBTXECC);
964 	regs_buff[1127] = IXGBE_READ_REG(hw, IXGBE_PBRXECC);
965 
966 	/* 82599 X540 specific registers  */
967 	regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);
968 
969 	/* 82599 X540 specific DCB registers  */
970 	regs_buff[1129] = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
971 	regs_buff[1130] = IXGBE_READ_REG(hw, IXGBE_RTTUP2TC);
972 	for (i = 0; i < 4; i++)
973 		regs_buff[1131 + i] = IXGBE_READ_REG(hw, IXGBE_TXLLQ(i));
974 	regs_buff[1135] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRM);
975 					/* same as RTTQCNRM */
976 	regs_buff[1136] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRD);
977 					/* same as RTTQCNRR */
978 
979 	/* X540 specific DCB registers  */
980 	regs_buff[1137] = IXGBE_READ_REG(hw, IXGBE_RTTQCNCR);
981 	regs_buff[1138] = IXGBE_READ_REG(hw, IXGBE_RTTQCNTG);
982 
983 	/* Security config registers */
984 	regs_buff[1139] = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);
985 	regs_buff[1140] = IXGBE_READ_REG(hw, IXGBE_SECTXSTAT);
986 	regs_buff[1141] = IXGBE_READ_REG(hw, IXGBE_SECTXBUFFAF);
987 	regs_buff[1142] = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG);
988 	regs_buff[1143] = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
989 	regs_buff[1144] = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
990 }
991 
ixgbe_get_eeprom_len(struct net_device * netdev)992 static int ixgbe_get_eeprom_len(struct net_device *netdev)
993 {
994 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
995 	return adapter->hw.eeprom.word_size * 2;
996 }
997 
ixgbe_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)998 static int ixgbe_get_eeprom(struct net_device *netdev,
999 			    struct ethtool_eeprom *eeprom, u8 *bytes)
1000 {
1001 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1002 	struct ixgbe_hw *hw = &adapter->hw;
1003 	u16 *eeprom_buff;
1004 	int first_word, last_word, eeprom_len;
1005 	int ret_val = 0;
1006 	u16 i;
1007 
1008 	if (eeprom->len == 0)
1009 		return -EINVAL;
1010 
1011 	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1012 
1013 	first_word = eeprom->offset >> 1;
1014 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
1015 	eeprom_len = last_word - first_word + 1;
1016 
1017 	eeprom_buff = kmalloc_array(eeprom_len, sizeof(u16), GFP_KERNEL);
1018 	if (!eeprom_buff)
1019 		return -ENOMEM;
1020 
1021 	ret_val = hw->eeprom.ops.read_buffer(hw, first_word, eeprom_len,
1022 					     eeprom_buff);
1023 
1024 	/* Device's eeprom is always little-endian, word addressable */
1025 	for (i = 0; i < eeprom_len; i++)
1026 		le16_to_cpus(&eeprom_buff[i]);
1027 
1028 	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
1029 	kfree(eeprom_buff);
1030 
1031 	return ret_val;
1032 }
1033 
ixgbe_set_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)1034 static int ixgbe_set_eeprom(struct net_device *netdev,
1035 			    struct ethtool_eeprom *eeprom, u8 *bytes)
1036 {
1037 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1038 	struct ixgbe_hw *hw = &adapter->hw;
1039 	u16 *eeprom_buff;
1040 	void *ptr;
1041 	int max_len, first_word, last_word, ret_val = 0;
1042 	u16 i;
1043 
1044 	if (eeprom->len == 0)
1045 		return -EINVAL;
1046 
1047 	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
1048 		return -EINVAL;
1049 
1050 	max_len = hw->eeprom.word_size * 2;
1051 
1052 	first_word = eeprom->offset >> 1;
1053 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
1054 	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
1055 	if (!eeprom_buff)
1056 		return -ENOMEM;
1057 
1058 	ptr = eeprom_buff;
1059 
1060 	if (eeprom->offset & 1) {
1061 		/*
1062 		 * need read/modify/write of first changed EEPROM word
1063 		 * only the second byte of the word is being modified
1064 		 */
1065 		ret_val = hw->eeprom.ops.read(hw, first_word, &eeprom_buff[0]);
1066 		if (ret_val)
1067 			goto err;
1068 
1069 		ptr++;
1070 	}
1071 	if ((eeprom->offset + eeprom->len) & 1) {
1072 		/*
1073 		 * need read/modify/write of last changed EEPROM word
1074 		 * only the first byte of the word is being modified
1075 		 */
1076 		ret_val = hw->eeprom.ops.read(hw, last_word,
1077 					  &eeprom_buff[last_word - first_word]);
1078 		if (ret_val)
1079 			goto err;
1080 	}
1081 
1082 	/* Device's eeprom is always little-endian, word addressable */
1083 	for (i = 0; i < last_word - first_word + 1; i++)
1084 		le16_to_cpus(&eeprom_buff[i]);
1085 
1086 	memcpy(ptr, bytes, eeprom->len);
1087 
1088 	for (i = 0; i < last_word - first_word + 1; i++)
1089 		cpu_to_le16s(&eeprom_buff[i]);
1090 
1091 	ret_val = hw->eeprom.ops.write_buffer(hw, first_word,
1092 					      last_word - first_word + 1,
1093 					      eeprom_buff);
1094 
1095 	/* Update the checksum */
1096 	if (ret_val == 0)
1097 		hw->eeprom.ops.update_checksum(hw);
1098 
1099 err:
1100 	kfree(eeprom_buff);
1101 	return ret_val;
1102 }
1103 
ixgbe_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)1104 static void ixgbe_get_drvinfo(struct net_device *netdev,
1105 			      struct ethtool_drvinfo *drvinfo)
1106 {
1107 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1108 
1109 	strscpy(drvinfo->driver, ixgbe_driver_name, sizeof(drvinfo->driver));
1110 
1111 	strscpy(drvinfo->fw_version, adapter->eeprom_id,
1112 		sizeof(drvinfo->fw_version));
1113 
1114 	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
1115 		sizeof(drvinfo->bus_info));
1116 
1117 	drvinfo->n_priv_flags = IXGBE_PRIV_FLAGS_STR_LEN;
1118 }
1119 
ixgbe_get_max_rxd(struct ixgbe_adapter * adapter)1120 static u32 ixgbe_get_max_rxd(struct ixgbe_adapter *adapter)
1121 {
1122 	switch (adapter->hw.mac.type) {
1123 	case ixgbe_mac_82598EB:
1124 		return IXGBE_MAX_RXD_82598;
1125 	case ixgbe_mac_82599EB:
1126 		return IXGBE_MAX_RXD_82599;
1127 	case ixgbe_mac_X540:
1128 		return IXGBE_MAX_RXD_X540;
1129 	case ixgbe_mac_X550:
1130 	case ixgbe_mac_X550EM_x:
1131 	case ixgbe_mac_x550em_a:
1132 		return IXGBE_MAX_RXD_X550;
1133 	default:
1134 		return IXGBE_MAX_RXD_82598;
1135 	}
1136 }
1137 
ixgbe_get_max_txd(struct ixgbe_adapter * adapter)1138 static u32 ixgbe_get_max_txd(struct ixgbe_adapter *adapter)
1139 {
1140 	switch (adapter->hw.mac.type) {
1141 	case ixgbe_mac_82598EB:
1142 		return IXGBE_MAX_TXD_82598;
1143 	case ixgbe_mac_82599EB:
1144 		return IXGBE_MAX_TXD_82599;
1145 	case ixgbe_mac_X540:
1146 		return IXGBE_MAX_TXD_X540;
1147 	case ixgbe_mac_X550:
1148 	case ixgbe_mac_X550EM_x:
1149 	case ixgbe_mac_x550em_a:
1150 		return IXGBE_MAX_TXD_X550;
1151 	default:
1152 		return IXGBE_MAX_TXD_82598;
1153 	}
1154 }
1155 
ixgbe_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)1156 static void ixgbe_get_ringparam(struct net_device *netdev,
1157 				struct ethtool_ringparam *ring,
1158 				struct kernel_ethtool_ringparam *kernel_ring,
1159 				struct netlink_ext_ack *extack)
1160 {
1161 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1162 	struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
1163 	struct ixgbe_ring *rx_ring = adapter->rx_ring[0];
1164 
1165 	ring->rx_max_pending = ixgbe_get_max_rxd(adapter);
1166 	ring->tx_max_pending = ixgbe_get_max_txd(adapter);
1167 	ring->rx_pending = rx_ring->count;
1168 	ring->tx_pending = tx_ring->count;
1169 }
1170 
ixgbe_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)1171 static int ixgbe_set_ringparam(struct net_device *netdev,
1172 			       struct ethtool_ringparam *ring,
1173 			       struct kernel_ethtool_ringparam *kernel_ring,
1174 			       struct netlink_ext_ack *extack)
1175 {
1176 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1177 	struct ixgbe_ring *temp_ring;
1178 	int i, j, err = 0;
1179 	u32 new_rx_count, new_tx_count;
1180 
1181 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1182 		return -EINVAL;
1183 
1184 	new_tx_count = clamp_t(u32, ring->tx_pending,
1185 			       IXGBE_MIN_TXD, ixgbe_get_max_txd(adapter));
1186 	new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
1187 
1188 	new_rx_count = clamp_t(u32, ring->rx_pending,
1189 			       IXGBE_MIN_RXD, ixgbe_get_max_rxd(adapter));
1190 	new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
1191 
1192 	if ((new_tx_count == adapter->tx_ring_count) &&
1193 	    (new_rx_count == adapter->rx_ring_count)) {
1194 		/* nothing to do */
1195 		return 0;
1196 	}
1197 
1198 	while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
1199 		usleep_range(1000, 2000);
1200 
1201 	if (!netif_running(adapter->netdev)) {
1202 		for (i = 0; i < adapter->num_tx_queues; i++)
1203 			adapter->tx_ring[i]->count = new_tx_count;
1204 		for (i = 0; i < adapter->num_xdp_queues; i++)
1205 			adapter->xdp_ring[i]->count = new_tx_count;
1206 		for (i = 0; i < adapter->num_rx_queues; i++)
1207 			adapter->rx_ring[i]->count = new_rx_count;
1208 		adapter->tx_ring_count = new_tx_count;
1209 		adapter->xdp_ring_count = new_tx_count;
1210 		adapter->rx_ring_count = new_rx_count;
1211 		goto clear_reset;
1212 	}
1213 
1214 	/* allocate temporary buffer to store rings in */
1215 	i = max_t(int, adapter->num_tx_queues + adapter->num_xdp_queues,
1216 		  adapter->num_rx_queues);
1217 	temp_ring = vmalloc(array_size(i, sizeof(struct ixgbe_ring)));
1218 
1219 	if (!temp_ring) {
1220 		err = -ENOMEM;
1221 		goto clear_reset;
1222 	}
1223 
1224 	ixgbe_down(adapter);
1225 
1226 	/*
1227 	 * Setup new Tx resources and free the old Tx resources in that order.
1228 	 * We can then assign the new resources to the rings via a memcpy.
1229 	 * The advantage to this approach is that we are guaranteed to still
1230 	 * have resources even in the case of an allocation failure.
1231 	 */
1232 	if (new_tx_count != adapter->tx_ring_count) {
1233 		for (i = 0; i < adapter->num_tx_queues; i++) {
1234 			memcpy(&temp_ring[i], adapter->tx_ring[i],
1235 			       sizeof(struct ixgbe_ring));
1236 
1237 			temp_ring[i].count = new_tx_count;
1238 			err = ixgbe_setup_tx_resources(&temp_ring[i]);
1239 			if (err) {
1240 				while (i) {
1241 					i--;
1242 					ixgbe_free_tx_resources(&temp_ring[i]);
1243 				}
1244 				goto err_setup;
1245 			}
1246 		}
1247 
1248 		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1249 			memcpy(&temp_ring[i], adapter->xdp_ring[j],
1250 			       sizeof(struct ixgbe_ring));
1251 
1252 			temp_ring[i].count = new_tx_count;
1253 			err = ixgbe_setup_tx_resources(&temp_ring[i]);
1254 			if (err) {
1255 				while (i) {
1256 					i--;
1257 					ixgbe_free_tx_resources(&temp_ring[i]);
1258 				}
1259 				goto err_setup;
1260 			}
1261 		}
1262 
1263 		for (i = 0; i < adapter->num_tx_queues; i++) {
1264 			ixgbe_free_tx_resources(adapter->tx_ring[i]);
1265 
1266 			memcpy(adapter->tx_ring[i], &temp_ring[i],
1267 			       sizeof(struct ixgbe_ring));
1268 		}
1269 		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1270 			ixgbe_free_tx_resources(adapter->xdp_ring[j]);
1271 
1272 			memcpy(adapter->xdp_ring[j], &temp_ring[i],
1273 			       sizeof(struct ixgbe_ring));
1274 		}
1275 
1276 		adapter->tx_ring_count = new_tx_count;
1277 	}
1278 
1279 	/* Repeat the process for the Rx rings if needed */
1280 	if (new_rx_count != adapter->rx_ring_count) {
1281 		for (i = 0; i < adapter->num_rx_queues; i++) {
1282 			memcpy(&temp_ring[i], adapter->rx_ring[i],
1283 			       sizeof(struct ixgbe_ring));
1284 
1285 			/* Clear copied XDP RX-queue info */
1286 			memset(&temp_ring[i].xdp_rxq, 0,
1287 			       sizeof(temp_ring[i].xdp_rxq));
1288 
1289 			temp_ring[i].count = new_rx_count;
1290 			err = ixgbe_setup_rx_resources(adapter, &temp_ring[i]);
1291 			if (err) {
1292 				while (i) {
1293 					i--;
1294 					ixgbe_free_rx_resources(&temp_ring[i]);
1295 				}
1296 				goto err_setup;
1297 			}
1298 
1299 		}
1300 
1301 		for (i = 0; i < adapter->num_rx_queues; i++) {
1302 			ixgbe_free_rx_resources(adapter->rx_ring[i]);
1303 
1304 			memcpy(adapter->rx_ring[i], &temp_ring[i],
1305 			       sizeof(struct ixgbe_ring));
1306 		}
1307 
1308 		adapter->rx_ring_count = new_rx_count;
1309 	}
1310 
1311 err_setup:
1312 	ixgbe_up(adapter);
1313 	vfree(temp_ring);
1314 clear_reset:
1315 	clear_bit(__IXGBE_RESETTING, &adapter->state);
1316 	return err;
1317 }
1318 
ixgbe_get_sset_count(struct net_device * netdev,int sset)1319 static int ixgbe_get_sset_count(struct net_device *netdev, int sset)
1320 {
1321 	switch (sset) {
1322 	case ETH_SS_TEST:
1323 		return IXGBE_TEST_LEN;
1324 	case ETH_SS_STATS:
1325 		return IXGBE_STATS_LEN;
1326 	case ETH_SS_PRIV_FLAGS:
1327 		return IXGBE_PRIV_FLAGS_STR_LEN;
1328 	default:
1329 		return -EOPNOTSUPP;
1330 	}
1331 }
1332 
ixgbe_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)1333 static void ixgbe_get_ethtool_stats(struct net_device *netdev,
1334 				    struct ethtool_stats *stats, u64 *data)
1335 {
1336 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1337 	struct rtnl_link_stats64 temp;
1338 	const struct rtnl_link_stats64 *net_stats;
1339 	unsigned int start;
1340 	struct ixgbe_ring *ring;
1341 	int i, j;
1342 	char *p = NULL;
1343 
1344 	ixgbe_update_stats(adapter);
1345 	net_stats = dev_get_stats(netdev, &temp);
1346 	for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1347 		switch (ixgbe_gstrings_stats[i].type) {
1348 		case NETDEV_STATS:
1349 			p = (char *) net_stats +
1350 					ixgbe_gstrings_stats[i].stat_offset;
1351 			break;
1352 		case IXGBE_STATS:
1353 			p = (char *) adapter +
1354 					ixgbe_gstrings_stats[i].stat_offset;
1355 			break;
1356 		default:
1357 			data[i] = 0;
1358 			continue;
1359 		}
1360 
1361 		data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
1362 			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1363 	}
1364 	for (j = 0; j < netdev->num_tx_queues; j++) {
1365 		ring = adapter->tx_ring[j];
1366 		if (!ring) {
1367 			data[i] = 0;
1368 			data[i+1] = 0;
1369 			i += 2;
1370 			continue;
1371 		}
1372 
1373 		do {
1374 			start = u64_stats_fetch_begin(&ring->syncp);
1375 			data[i]   = ring->stats.packets;
1376 			data[i+1] = ring->stats.bytes;
1377 		} while (u64_stats_fetch_retry(&ring->syncp, start));
1378 		i += 2;
1379 	}
1380 	for (j = 0; j < IXGBE_NUM_RX_QUEUES; j++) {
1381 		ring = adapter->rx_ring[j];
1382 		if (!ring) {
1383 			data[i] = 0;
1384 			data[i+1] = 0;
1385 			i += 2;
1386 			continue;
1387 		}
1388 
1389 		do {
1390 			start = u64_stats_fetch_begin(&ring->syncp);
1391 			data[i]   = ring->stats.packets;
1392 			data[i+1] = ring->stats.bytes;
1393 		} while (u64_stats_fetch_retry(&ring->syncp, start));
1394 		i += 2;
1395 	}
1396 
1397 	for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1398 		data[i++] = adapter->stats.pxontxc[j];
1399 		data[i++] = adapter->stats.pxofftxc[j];
1400 	}
1401 	for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1402 		data[i++] = adapter->stats.pxonrxc[j];
1403 		data[i++] = adapter->stats.pxoffrxc[j];
1404 	}
1405 }
1406 
ixgbe_get_strings(struct net_device * netdev,u32 stringset,u8 * data)1407 static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
1408 			      u8 *data)
1409 {
1410 	unsigned int i;
1411 	u8 *p = data;
1412 
1413 	switch (stringset) {
1414 	case ETH_SS_TEST:
1415 		for (i = 0; i < IXGBE_TEST_LEN; i++)
1416 			ethtool_sprintf(&p, ixgbe_gstrings_test[i]);
1417 		break;
1418 	case ETH_SS_STATS:
1419 		for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++)
1420 			ethtool_sprintf(&p,
1421 					ixgbe_gstrings_stats[i].stat_string);
1422 		for (i = 0; i < netdev->num_tx_queues; i++) {
1423 			ethtool_sprintf(&p, "tx_queue_%u_packets", i);
1424 			ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
1425 		}
1426 		for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
1427 			ethtool_sprintf(&p, "rx_queue_%u_packets", i);
1428 			ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
1429 		}
1430 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1431 			ethtool_sprintf(&p, "tx_pb_%u_pxon", i);
1432 			ethtool_sprintf(&p, "tx_pb_%u_pxoff", i);
1433 		}
1434 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1435 			ethtool_sprintf(&p, "rx_pb_%u_pxon", i);
1436 			ethtool_sprintf(&p, "rx_pb_%u_pxoff", i);
1437 		}
1438 		/* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */
1439 		break;
1440 	case ETH_SS_PRIV_FLAGS:
1441 		memcpy(data, ixgbe_priv_flags_strings,
1442 		       IXGBE_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
1443 	}
1444 }
1445 
ixgbe_link_test(struct ixgbe_adapter * adapter,u64 * data)1446 static int ixgbe_link_test(struct ixgbe_adapter *adapter, u64 *data)
1447 {
1448 	struct ixgbe_hw *hw = &adapter->hw;
1449 	bool link_up;
1450 	u32 link_speed = 0;
1451 
1452 	if (ixgbe_removed(hw->hw_addr)) {
1453 		*data = 1;
1454 		return 1;
1455 	}
1456 	*data = 0;
1457 
1458 	hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
1459 	if (link_up)
1460 		return *data;
1461 	else
1462 		*data = 1;
1463 	return *data;
1464 }
1465 
1466 /* ethtool register test data */
1467 struct ixgbe_reg_test {
1468 	u16 reg;
1469 	u8  array_len;
1470 	u8  test_type;
1471 	u32 mask;
1472 	u32 write;
1473 };
1474 
1475 /* In the hardware, registers are laid out either singly, in arrays
1476  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
1477  * most tests take place on arrays or single registers (handled
1478  * as a single-element array) and special-case the tables.
1479  * Table tests are always pattern tests.
1480  *
1481  * We also make provision for some required setup steps by specifying
1482  * registers to be written without any read-back testing.
1483  */
1484 
1485 #define PATTERN_TEST	1
1486 #define SET_READ_TEST	2
1487 #define WRITE_NO_TEST	3
1488 #define TABLE32_TEST	4
1489 #define TABLE64_TEST_LO	5
1490 #define TABLE64_TEST_HI	6
1491 
1492 /* default 82599 register test */
1493 static const struct ixgbe_reg_test reg_test_82599[] = {
1494 	{ IXGBE_FCRTL_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1495 	{ IXGBE_FCRTH_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1496 	{ IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1497 	{ IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1498 	{ IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
1499 	{ IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1500 	{ IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1501 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1502 	{ IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1503 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1504 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1505 	{ IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1506 	{ IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1507 	{ IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1508 	{ IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
1509 	{ IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000001, 0x00000001 },
1510 	{ IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1511 	{ IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x8001FFFF, 0x800CFFFF },
1512 	{ IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1513 	{ .reg = 0 }
1514 };
1515 
1516 /* default 82598 register test */
1517 static const struct ixgbe_reg_test reg_test_82598[] = {
1518 	{ IXGBE_FCRTL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1519 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1520 	{ IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1521 	{ IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1522 	{ IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1523 	{ IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1524 	{ IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1525 	/* Enable all four RX queues before testing. */
1526 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1527 	/* RDH is read-only for 82598, only test RDT. */
1528 	{ IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1529 	{ IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1530 	{ IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1531 	{ IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1532 	{ IXGBE_TIPG, 1, PATTERN_TEST, 0x000000FF, 0x000000FF },
1533 	{ IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1534 	{ IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1535 	{ IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1536 	{ IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000003, 0x00000003 },
1537 	{ IXGBE_DTXCTL, 1, SET_READ_TEST, 0x00000005, 0x00000005 },
1538 	{ IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1539 	{ IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x800CFFFF, 0x800CFFFF },
1540 	{ IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1541 	{ .reg = 0 }
1542 };
1543 
reg_pattern_test(struct ixgbe_adapter * adapter,u64 * data,int reg,u32 mask,u32 write)1544 static bool reg_pattern_test(struct ixgbe_adapter *adapter, u64 *data, int reg,
1545 			     u32 mask, u32 write)
1546 {
1547 	u32 pat, val, before;
1548 	static const u32 test_pattern[] = {
1549 		0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
1550 
1551 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1552 		*data = 1;
1553 		return true;
1554 	}
1555 	for (pat = 0; pat < ARRAY_SIZE(test_pattern); pat++) {
1556 		before = ixgbe_read_reg(&adapter->hw, reg);
1557 		ixgbe_write_reg(&adapter->hw, reg, test_pattern[pat] & write);
1558 		val = ixgbe_read_reg(&adapter->hw, reg);
1559 		if (val != (test_pattern[pat] & write & mask)) {
1560 			e_err(drv, "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
1561 			      reg, val, (test_pattern[pat] & write & mask));
1562 			*data = reg;
1563 			ixgbe_write_reg(&adapter->hw, reg, before);
1564 			return true;
1565 		}
1566 		ixgbe_write_reg(&adapter->hw, reg, before);
1567 	}
1568 	return false;
1569 }
1570 
reg_set_and_check(struct ixgbe_adapter * adapter,u64 * data,int reg,u32 mask,u32 write)1571 static bool reg_set_and_check(struct ixgbe_adapter *adapter, u64 *data, int reg,
1572 			      u32 mask, u32 write)
1573 {
1574 	u32 val, before;
1575 
1576 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1577 		*data = 1;
1578 		return true;
1579 	}
1580 	before = ixgbe_read_reg(&adapter->hw, reg);
1581 	ixgbe_write_reg(&adapter->hw, reg, write & mask);
1582 	val = ixgbe_read_reg(&adapter->hw, reg);
1583 	if ((write & mask) != (val & mask)) {
1584 		e_err(drv, "set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
1585 		      reg, (val & mask), (write & mask));
1586 		*data = reg;
1587 		ixgbe_write_reg(&adapter->hw, reg, before);
1588 		return true;
1589 	}
1590 	ixgbe_write_reg(&adapter->hw, reg, before);
1591 	return false;
1592 }
1593 
ixgbe_reg_test(struct ixgbe_adapter * adapter,u64 * data)1594 static int ixgbe_reg_test(struct ixgbe_adapter *adapter, u64 *data)
1595 {
1596 	const struct ixgbe_reg_test *test;
1597 	u32 value, before, after;
1598 	u32 i, toggle;
1599 
1600 	if (ixgbe_removed(adapter->hw.hw_addr)) {
1601 		e_err(drv, "Adapter removed - register test blocked\n");
1602 		*data = 1;
1603 		return 1;
1604 	}
1605 	switch (adapter->hw.mac.type) {
1606 	case ixgbe_mac_82598EB:
1607 		toggle = 0x7FFFF3FF;
1608 		test = reg_test_82598;
1609 		break;
1610 	case ixgbe_mac_82599EB:
1611 	case ixgbe_mac_X540:
1612 	case ixgbe_mac_X550:
1613 	case ixgbe_mac_X550EM_x:
1614 	case ixgbe_mac_x550em_a:
1615 		toggle = 0x7FFFF30F;
1616 		test = reg_test_82599;
1617 		break;
1618 	default:
1619 		*data = 1;
1620 		return 1;
1621 	}
1622 
1623 	/*
1624 	 * Because the status register is such a special case,
1625 	 * we handle it separately from the rest of the register
1626 	 * tests.  Some bits are read-only, some toggle, and some
1627 	 * are writeable on newer MACs.
1628 	 */
1629 	before = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS);
1630 	value = (ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle);
1631 	ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, toggle);
1632 	after = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle;
1633 	if (value != after) {
1634 		e_err(drv, "failed STATUS register test got: 0x%08X expected: 0x%08X\n",
1635 		      after, value);
1636 		*data = 1;
1637 		return 1;
1638 	}
1639 	/* restore previous status */
1640 	ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, before);
1641 
1642 	/*
1643 	 * Perform the remainder of the register test, looping through
1644 	 * the test table until we either fail or reach the null entry.
1645 	 */
1646 	while (test->reg) {
1647 		for (i = 0; i < test->array_len; i++) {
1648 			bool b = false;
1649 
1650 			switch (test->test_type) {
1651 			case PATTERN_TEST:
1652 				b = reg_pattern_test(adapter, data,
1653 						     test->reg + (i * 0x40),
1654 						     test->mask,
1655 						     test->write);
1656 				break;
1657 			case SET_READ_TEST:
1658 				b = reg_set_and_check(adapter, data,
1659 						      test->reg + (i * 0x40),
1660 						      test->mask,
1661 						      test->write);
1662 				break;
1663 			case WRITE_NO_TEST:
1664 				ixgbe_write_reg(&adapter->hw,
1665 						test->reg + (i * 0x40),
1666 						test->write);
1667 				break;
1668 			case TABLE32_TEST:
1669 				b = reg_pattern_test(adapter, data,
1670 						     test->reg + (i * 4),
1671 						     test->mask,
1672 						     test->write);
1673 				break;
1674 			case TABLE64_TEST_LO:
1675 				b = reg_pattern_test(adapter, data,
1676 						     test->reg + (i * 8),
1677 						     test->mask,
1678 						     test->write);
1679 				break;
1680 			case TABLE64_TEST_HI:
1681 				b = reg_pattern_test(adapter, data,
1682 						     (test->reg + 4) + (i * 8),
1683 						     test->mask,
1684 						     test->write);
1685 				break;
1686 			}
1687 			if (b)
1688 				return 1;
1689 		}
1690 		test++;
1691 	}
1692 
1693 	*data = 0;
1694 	return 0;
1695 }
1696 
ixgbe_eeprom_test(struct ixgbe_adapter * adapter,u64 * data)1697 static int ixgbe_eeprom_test(struct ixgbe_adapter *adapter, u64 *data)
1698 {
1699 	struct ixgbe_hw *hw = &adapter->hw;
1700 	if (hw->eeprom.ops.validate_checksum(hw, NULL))
1701 		*data = 1;
1702 	else
1703 		*data = 0;
1704 	return *data;
1705 }
1706 
ixgbe_test_intr(int irq,void * data)1707 static irqreturn_t ixgbe_test_intr(int irq, void *data)
1708 {
1709 	struct net_device *netdev = (struct net_device *) data;
1710 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1711 
1712 	adapter->test_icr |= IXGBE_READ_REG(&adapter->hw, IXGBE_EICR);
1713 
1714 	return IRQ_HANDLED;
1715 }
1716 
ixgbe_intr_test(struct ixgbe_adapter * adapter,u64 * data)1717 static int ixgbe_intr_test(struct ixgbe_adapter *adapter, u64 *data)
1718 {
1719 	struct net_device *netdev = adapter->netdev;
1720 	u32 mask, i = 0, shared_int = true;
1721 	u32 irq = adapter->pdev->irq;
1722 
1723 	*data = 0;
1724 
1725 	/* Hook up test interrupt handler just for this test */
1726 	if (adapter->msix_entries) {
1727 		/* NOTE: we don't test MSI-X interrupts here, yet */
1728 		return 0;
1729 	} else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
1730 		shared_int = false;
1731 		if (request_irq(irq, ixgbe_test_intr, 0, netdev->name,
1732 				netdev)) {
1733 			*data = 1;
1734 			return -1;
1735 		}
1736 	} else if (!request_irq(irq, ixgbe_test_intr, IRQF_PROBE_SHARED,
1737 				netdev->name, netdev)) {
1738 		shared_int = false;
1739 	} else if (request_irq(irq, ixgbe_test_intr, IRQF_SHARED,
1740 			       netdev->name, netdev)) {
1741 		*data = 1;
1742 		return -1;
1743 	}
1744 	e_info(hw, "testing %s interrupt\n", shared_int ?
1745 	       "shared" : "unshared");
1746 
1747 	/* Disable all the interrupts */
1748 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1749 	IXGBE_WRITE_FLUSH(&adapter->hw);
1750 	usleep_range(10000, 20000);
1751 
1752 	/* Test each interrupt */
1753 	for (; i < 10; i++) {
1754 		/* Interrupt to test */
1755 		mask = BIT(i);
1756 
1757 		if (!shared_int) {
1758 			/*
1759 			 * Disable the interrupts to be reported in
1760 			 * the cause register and then force the same
1761 			 * interrupt and see if one gets posted.  If
1762 			 * an interrupt was posted to the bus, the
1763 			 * test failed.
1764 			 */
1765 			adapter->test_icr = 0;
1766 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1767 					~mask & 0x00007FFF);
1768 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1769 					~mask & 0x00007FFF);
1770 			IXGBE_WRITE_FLUSH(&adapter->hw);
1771 			usleep_range(10000, 20000);
1772 
1773 			if (adapter->test_icr & mask) {
1774 				*data = 3;
1775 				break;
1776 			}
1777 		}
1778 
1779 		/*
1780 		 * Enable the interrupt to be reported in the cause
1781 		 * register and then force the same interrupt and see
1782 		 * if one gets posted.  If an interrupt was not posted
1783 		 * to the bus, the test failed.
1784 		 */
1785 		adapter->test_icr = 0;
1786 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
1787 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
1788 		IXGBE_WRITE_FLUSH(&adapter->hw);
1789 		usleep_range(10000, 20000);
1790 
1791 		if (!(adapter->test_icr & mask)) {
1792 			*data = 4;
1793 			break;
1794 		}
1795 
1796 		if (!shared_int) {
1797 			/*
1798 			 * Disable the other interrupts to be reported in
1799 			 * the cause register and then force the other
1800 			 * interrupts and see if any get posted.  If
1801 			 * an interrupt was posted to the bus, the
1802 			 * test failed.
1803 			 */
1804 			adapter->test_icr = 0;
1805 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1806 					~mask & 0x00007FFF);
1807 			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1808 					~mask & 0x00007FFF);
1809 			IXGBE_WRITE_FLUSH(&adapter->hw);
1810 			usleep_range(10000, 20000);
1811 
1812 			if (adapter->test_icr) {
1813 				*data = 5;
1814 				break;
1815 			}
1816 		}
1817 	}
1818 
1819 	/* Disable all the interrupts */
1820 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1821 	IXGBE_WRITE_FLUSH(&adapter->hw);
1822 	usleep_range(10000, 20000);
1823 
1824 	/* Unhook test interrupt handler */
1825 	free_irq(irq, netdev);
1826 
1827 	return *data;
1828 }
1829 
ixgbe_free_desc_rings(struct ixgbe_adapter * adapter)1830 static void ixgbe_free_desc_rings(struct ixgbe_adapter *adapter)
1831 {
1832 	/* Shut down the DMA engines now so they can be reinitialized later,
1833 	 * since the test rings and normally used rings should overlap on
1834 	 * queue 0 we can just use the standard disable Rx/Tx calls and they
1835 	 * will take care of disabling the test rings for us.
1836 	 */
1837 
1838 	/* first Rx */
1839 	ixgbe_disable_rx(adapter);
1840 
1841 	/* now Tx */
1842 	ixgbe_disable_tx(adapter);
1843 
1844 	ixgbe_reset(adapter);
1845 
1846 	ixgbe_free_tx_resources(&adapter->test_tx_ring);
1847 	ixgbe_free_rx_resources(&adapter->test_rx_ring);
1848 }
1849 
ixgbe_setup_desc_rings(struct ixgbe_adapter * adapter)1850 static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
1851 {
1852 	struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1853 	struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1854 	struct ixgbe_hw *hw = &adapter->hw;
1855 	u32 rctl, reg_data;
1856 	int ret_val;
1857 	int err;
1858 
1859 	/* Setup Tx descriptor ring and Tx buffers */
1860 	tx_ring->count = IXGBE_DEFAULT_TXD;
1861 	tx_ring->queue_index = 0;
1862 	tx_ring->dev = &adapter->pdev->dev;
1863 	tx_ring->netdev = adapter->netdev;
1864 	tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx;
1865 
1866 	err = ixgbe_setup_tx_resources(tx_ring);
1867 	if (err)
1868 		return 1;
1869 
1870 	switch (adapter->hw.mac.type) {
1871 	case ixgbe_mac_82599EB:
1872 	case ixgbe_mac_X540:
1873 	case ixgbe_mac_X550:
1874 	case ixgbe_mac_X550EM_x:
1875 	case ixgbe_mac_x550em_a:
1876 		reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_DMATXCTL);
1877 		reg_data |= IXGBE_DMATXCTL_TE;
1878 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_DMATXCTL, reg_data);
1879 		break;
1880 	default:
1881 		break;
1882 	}
1883 
1884 	ixgbe_configure_tx_ring(adapter, tx_ring);
1885 
1886 	/* Setup Rx Descriptor ring and Rx buffers */
1887 	rx_ring->count = IXGBE_DEFAULT_RXD;
1888 	rx_ring->queue_index = 0;
1889 	rx_ring->dev = &adapter->pdev->dev;
1890 	rx_ring->netdev = adapter->netdev;
1891 	rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;
1892 
1893 	err = ixgbe_setup_rx_resources(adapter, rx_ring);
1894 	if (err) {
1895 		ret_val = 4;
1896 		goto err_nomem;
1897 	}
1898 
1899 	hw->mac.ops.disable_rx(hw);
1900 
1901 	ixgbe_configure_rx_ring(adapter, rx_ring);
1902 
1903 	rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXCTRL);
1904 	rctl |= IXGBE_RXCTRL_DMBYPS;
1905 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);
1906 
1907 	hw->mac.ops.enable_rx(hw);
1908 
1909 	return 0;
1910 
1911 err_nomem:
1912 	ixgbe_free_desc_rings(adapter);
1913 	return ret_val;
1914 }
1915 
ixgbe_setup_loopback_test(struct ixgbe_adapter * adapter)1916 static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
1917 {
1918 	struct ixgbe_hw *hw = &adapter->hw;
1919 	u32 reg_data;
1920 
1921 
1922 	/* Setup MAC loopback */
1923 	reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
1924 	reg_data |= IXGBE_HLREG0_LPBK;
1925 	IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);
1926 
1927 	reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1928 	reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
1929 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);
1930 
1931 	/* X540 and X550 needs to set the MACC.FLU bit to force link up */
1932 	switch (adapter->hw.mac.type) {
1933 	case ixgbe_mac_X540:
1934 	case ixgbe_mac_X550:
1935 	case ixgbe_mac_X550EM_x:
1936 	case ixgbe_mac_x550em_a:
1937 		reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
1938 		reg_data |= IXGBE_MACC_FLU;
1939 		IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
1940 		break;
1941 	default:
1942 		if (hw->mac.orig_autoc) {
1943 			reg_data = hw->mac.orig_autoc | IXGBE_AUTOC_FLU;
1944 			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
1945 		} else {
1946 			return 10;
1947 		}
1948 	}
1949 	IXGBE_WRITE_FLUSH(hw);
1950 	usleep_range(10000, 20000);
1951 
1952 	/* Disable Atlas Tx lanes; re-enabled in reset path */
1953 	if (hw->mac.type == ixgbe_mac_82598EB) {
1954 		u8 atlas;
1955 
1956 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &atlas);
1957 		atlas |= IXGBE_ATLAS_PDN_TX_REG_EN;
1958 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, atlas);
1959 
1960 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &atlas);
1961 		atlas |= IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
1962 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, atlas);
1963 
1964 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &atlas);
1965 		atlas |= IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
1966 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, atlas);
1967 
1968 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &atlas);
1969 		atlas |= IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
1970 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, atlas);
1971 	}
1972 
1973 	return 0;
1974 }
1975 
ixgbe_loopback_cleanup(struct ixgbe_adapter * adapter)1976 static void ixgbe_loopback_cleanup(struct ixgbe_adapter *adapter)
1977 {
1978 	u32 reg_data;
1979 
1980 	reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
1981 	reg_data &= ~IXGBE_HLREG0_LPBK;
1982 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
1983 }
1984 
ixgbe_create_lbtest_frame(struct sk_buff * skb,unsigned int frame_size)1985 static void ixgbe_create_lbtest_frame(struct sk_buff *skb,
1986 				      unsigned int frame_size)
1987 {
1988 	memset(skb->data, 0xFF, frame_size);
1989 	frame_size >>= 1;
1990 	memset(&skb->data[frame_size], 0xAA, frame_size / 2 - 1);
1991 	skb->data[frame_size + 10] = 0xBE;
1992 	skb->data[frame_size + 12] = 0xAF;
1993 }
1994 
ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer * rx_buffer,unsigned int frame_size)1995 static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer,
1996 				     unsigned int frame_size)
1997 {
1998 	unsigned char *data;
1999 
2000 	frame_size >>= 1;
2001 
2002 	data = page_address(rx_buffer->page) + rx_buffer->page_offset;
2003 
2004 	return data[3] == 0xFF && data[frame_size + 10] == 0xBE &&
2005 		data[frame_size + 12] == 0xAF;
2006 }
2007 
ixgbe_clean_test_rings(struct ixgbe_ring * rx_ring,struct ixgbe_ring * tx_ring,unsigned int size)2008 static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
2009 				  struct ixgbe_ring *tx_ring,
2010 				  unsigned int size)
2011 {
2012 	union ixgbe_adv_rx_desc *rx_desc;
2013 	u16 rx_ntc, tx_ntc, count = 0;
2014 
2015 	/* initialize next to clean and descriptor values */
2016 	rx_ntc = rx_ring->next_to_clean;
2017 	tx_ntc = tx_ring->next_to_clean;
2018 	rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
2019 
2020 	while (tx_ntc != tx_ring->next_to_use) {
2021 		union ixgbe_adv_tx_desc *tx_desc;
2022 		struct ixgbe_tx_buffer *tx_buffer;
2023 
2024 		tx_desc = IXGBE_TX_DESC(tx_ring, tx_ntc);
2025 
2026 		/* if DD is not set transmit has not completed */
2027 		if (!(tx_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
2028 			return count;
2029 
2030 		/* unmap buffer on Tx side */
2031 		tx_buffer = &tx_ring->tx_buffer_info[tx_ntc];
2032 
2033 		/* Free all the Tx ring sk_buffs */
2034 		dev_kfree_skb_any(tx_buffer->skb);
2035 
2036 		/* unmap skb header data */
2037 		dma_unmap_single(tx_ring->dev,
2038 				 dma_unmap_addr(tx_buffer, dma),
2039 				 dma_unmap_len(tx_buffer, len),
2040 				 DMA_TO_DEVICE);
2041 		dma_unmap_len_set(tx_buffer, len, 0);
2042 
2043 		/* increment Tx next to clean counter */
2044 		tx_ntc++;
2045 		if (tx_ntc == tx_ring->count)
2046 			tx_ntc = 0;
2047 	}
2048 
2049 	while (rx_desc->wb.upper.length) {
2050 		struct ixgbe_rx_buffer *rx_buffer;
2051 
2052 		/* check Rx buffer */
2053 		rx_buffer = &rx_ring->rx_buffer_info[rx_ntc];
2054 
2055 		/* sync Rx buffer for CPU read */
2056 		dma_sync_single_for_cpu(rx_ring->dev,
2057 					rx_buffer->dma,
2058 					ixgbe_rx_bufsz(rx_ring),
2059 					DMA_FROM_DEVICE);
2060 
2061 		/* verify contents of skb */
2062 		if (ixgbe_check_lbtest_frame(rx_buffer, size))
2063 			count++;
2064 		else
2065 			break;
2066 
2067 		/* sync Rx buffer for device write */
2068 		dma_sync_single_for_device(rx_ring->dev,
2069 					   rx_buffer->dma,
2070 					   ixgbe_rx_bufsz(rx_ring),
2071 					   DMA_FROM_DEVICE);
2072 
2073 		/* increment Rx next to clean counter */
2074 		rx_ntc++;
2075 		if (rx_ntc == rx_ring->count)
2076 			rx_ntc = 0;
2077 
2078 		/* fetch next descriptor */
2079 		rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
2080 	}
2081 
2082 	netdev_tx_reset_queue(txring_txq(tx_ring));
2083 
2084 	/* re-map buffers to ring, store next to clean values */
2085 	ixgbe_alloc_rx_buffers(rx_ring, count);
2086 	rx_ring->next_to_clean = rx_ntc;
2087 	tx_ring->next_to_clean = tx_ntc;
2088 
2089 	return count;
2090 }
2091 
ixgbe_run_loopback_test(struct ixgbe_adapter * adapter)2092 static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter)
2093 {
2094 	struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
2095 	struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
2096 	int i, j, lc, good_cnt, ret_val = 0;
2097 	unsigned int size = 1024;
2098 	netdev_tx_t tx_ret_val;
2099 	struct sk_buff *skb;
2100 	u32 flags_orig = adapter->flags;
2101 
2102 	/* DCB can modify the frames on Tx */
2103 	adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
2104 
2105 	/* allocate test skb */
2106 	skb = alloc_skb(size, GFP_KERNEL);
2107 	if (!skb)
2108 		return 11;
2109 
2110 	/* place data into test skb */
2111 	ixgbe_create_lbtest_frame(skb, size);
2112 	skb_put(skb, size);
2113 
2114 	/*
2115 	 * Calculate the loop count based on the largest descriptor ring
2116 	 * The idea is to wrap the largest ring a number of times using 64
2117 	 * send/receive pairs during each loop
2118 	 */
2119 
2120 	if (rx_ring->count <= tx_ring->count)
2121 		lc = ((tx_ring->count / 64) * 2) + 1;
2122 	else
2123 		lc = ((rx_ring->count / 64) * 2) + 1;
2124 
2125 	for (j = 0; j <= lc; j++) {
2126 		/* reset count of good packets */
2127 		good_cnt = 0;
2128 
2129 		/* place 64 packets on the transmit queue*/
2130 		for (i = 0; i < 64; i++) {
2131 			skb_get(skb);
2132 			tx_ret_val = ixgbe_xmit_frame_ring(skb,
2133 							   adapter,
2134 							   tx_ring);
2135 			if (tx_ret_val == NETDEV_TX_OK)
2136 				good_cnt++;
2137 		}
2138 
2139 		if (good_cnt != 64) {
2140 			ret_val = 12;
2141 			break;
2142 		}
2143 
2144 		/* allow 200 milliseconds for packets to go from Tx to Rx */
2145 		msleep(200);
2146 
2147 		good_cnt = ixgbe_clean_test_rings(rx_ring, tx_ring, size);
2148 		if (good_cnt != 64) {
2149 			ret_val = 13;
2150 			break;
2151 		}
2152 	}
2153 
2154 	/* free the original skb */
2155 	kfree_skb(skb);
2156 	adapter->flags = flags_orig;
2157 
2158 	return ret_val;
2159 }
2160 
ixgbe_loopback_test(struct ixgbe_adapter * adapter,u64 * data)2161 static int ixgbe_loopback_test(struct ixgbe_adapter *adapter, u64 *data)
2162 {
2163 	*data = ixgbe_setup_desc_rings(adapter);
2164 	if (*data)
2165 		goto out;
2166 	*data = ixgbe_setup_loopback_test(adapter);
2167 	if (*data)
2168 		goto err_loopback;
2169 	*data = ixgbe_run_loopback_test(adapter);
2170 	ixgbe_loopback_cleanup(adapter);
2171 
2172 err_loopback:
2173 	ixgbe_free_desc_rings(adapter);
2174 out:
2175 	return *data;
2176 }
2177 
ixgbe_diag_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)2178 static void ixgbe_diag_test(struct net_device *netdev,
2179 			    struct ethtool_test *eth_test, u64 *data)
2180 {
2181 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2182 	bool if_running = netif_running(netdev);
2183 
2184 	if (ixgbe_removed(adapter->hw.hw_addr)) {
2185 		e_err(hw, "Adapter removed - test blocked\n");
2186 		data[0] = 1;
2187 		data[1] = 1;
2188 		data[2] = 1;
2189 		data[3] = 1;
2190 		data[4] = 1;
2191 		eth_test->flags |= ETH_TEST_FL_FAILED;
2192 		return;
2193 	}
2194 	set_bit(__IXGBE_TESTING, &adapter->state);
2195 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2196 		struct ixgbe_hw *hw = &adapter->hw;
2197 
2198 		if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
2199 			int i;
2200 			for (i = 0; i < adapter->num_vfs; i++) {
2201 				if (adapter->vfinfo[i].clear_to_send) {
2202 					netdev_warn(netdev, "offline diagnostic is not supported when VFs are present\n");
2203 					data[0] = 1;
2204 					data[1] = 1;
2205 					data[2] = 1;
2206 					data[3] = 1;
2207 					data[4] = 1;
2208 					eth_test->flags |= ETH_TEST_FL_FAILED;
2209 					clear_bit(__IXGBE_TESTING,
2210 						  &adapter->state);
2211 					return;
2212 				}
2213 			}
2214 		}
2215 
2216 		/* Offline tests */
2217 		e_info(hw, "offline testing starting\n");
2218 
2219 		/* Link test performed before hardware reset so autoneg doesn't
2220 		 * interfere with test result
2221 		 */
2222 		if (ixgbe_link_test(adapter, &data[4]))
2223 			eth_test->flags |= ETH_TEST_FL_FAILED;
2224 
2225 		if (if_running)
2226 			/* indicate we're in test mode */
2227 			ixgbe_close(netdev);
2228 		else
2229 			ixgbe_reset(adapter);
2230 
2231 		e_info(hw, "register testing starting\n");
2232 		if (ixgbe_reg_test(adapter, &data[0]))
2233 			eth_test->flags |= ETH_TEST_FL_FAILED;
2234 
2235 		ixgbe_reset(adapter);
2236 		e_info(hw, "eeprom testing starting\n");
2237 		if (ixgbe_eeprom_test(adapter, &data[1]))
2238 			eth_test->flags |= ETH_TEST_FL_FAILED;
2239 
2240 		ixgbe_reset(adapter);
2241 		e_info(hw, "interrupt testing starting\n");
2242 		if (ixgbe_intr_test(adapter, &data[2]))
2243 			eth_test->flags |= ETH_TEST_FL_FAILED;
2244 
2245 		/* If SRIOV or VMDq is enabled then skip MAC
2246 		 * loopback diagnostic. */
2247 		if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
2248 				      IXGBE_FLAG_VMDQ_ENABLED)) {
2249 			e_info(hw, "Skip MAC loopback diagnostic in VT mode\n");
2250 			data[3] = 0;
2251 			goto skip_loopback;
2252 		}
2253 
2254 		ixgbe_reset(adapter);
2255 		e_info(hw, "loopback testing starting\n");
2256 		if (ixgbe_loopback_test(adapter, &data[3]))
2257 			eth_test->flags |= ETH_TEST_FL_FAILED;
2258 
2259 skip_loopback:
2260 		ixgbe_reset(adapter);
2261 
2262 		/* clear testing bit and return adapter to previous state */
2263 		clear_bit(__IXGBE_TESTING, &adapter->state);
2264 		if (if_running)
2265 			ixgbe_open(netdev);
2266 		else if (hw->mac.ops.disable_tx_laser)
2267 			hw->mac.ops.disable_tx_laser(hw);
2268 	} else {
2269 		e_info(hw, "online testing starting\n");
2270 
2271 		/* Online tests */
2272 		if (ixgbe_link_test(adapter, &data[4]))
2273 			eth_test->flags |= ETH_TEST_FL_FAILED;
2274 
2275 		/* Offline tests aren't run; pass by default */
2276 		data[0] = 0;
2277 		data[1] = 0;
2278 		data[2] = 0;
2279 		data[3] = 0;
2280 
2281 		clear_bit(__IXGBE_TESTING, &adapter->state);
2282 	}
2283 }
2284 
ixgbe_wol_exclusion(struct ixgbe_adapter * adapter,struct ethtool_wolinfo * wol)2285 static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
2286 			       struct ethtool_wolinfo *wol)
2287 {
2288 	struct ixgbe_hw *hw = &adapter->hw;
2289 	int retval = 0;
2290 
2291 	/* WOL not supported for all devices */
2292 	if (!ixgbe_wol_supported(adapter, hw->device_id,
2293 				 hw->subsystem_device_id)) {
2294 		retval = 1;
2295 		wol->supported = 0;
2296 	}
2297 
2298 	return retval;
2299 }
2300 
ixgbe_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2301 static void ixgbe_get_wol(struct net_device *netdev,
2302 			  struct ethtool_wolinfo *wol)
2303 {
2304 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2305 
2306 	wol->supported = WAKE_UCAST | WAKE_MCAST |
2307 			 WAKE_BCAST | WAKE_MAGIC;
2308 	wol->wolopts = 0;
2309 
2310 	if (ixgbe_wol_exclusion(adapter, wol) ||
2311 	    !device_can_wakeup(&adapter->pdev->dev))
2312 		return;
2313 
2314 	if (adapter->wol & IXGBE_WUFC_EX)
2315 		wol->wolopts |= WAKE_UCAST;
2316 	if (adapter->wol & IXGBE_WUFC_MC)
2317 		wol->wolopts |= WAKE_MCAST;
2318 	if (adapter->wol & IXGBE_WUFC_BC)
2319 		wol->wolopts |= WAKE_BCAST;
2320 	if (adapter->wol & IXGBE_WUFC_MAG)
2321 		wol->wolopts |= WAKE_MAGIC;
2322 }
2323 
ixgbe_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)2324 static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2325 {
2326 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2327 
2328 	if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE |
2329 			    WAKE_FILTER))
2330 		return -EOPNOTSUPP;
2331 
2332 	if (ixgbe_wol_exclusion(adapter, wol))
2333 		return wol->wolopts ? -EOPNOTSUPP : 0;
2334 
2335 	adapter->wol = 0;
2336 
2337 	if (wol->wolopts & WAKE_UCAST)
2338 		adapter->wol |= IXGBE_WUFC_EX;
2339 	if (wol->wolopts & WAKE_MCAST)
2340 		adapter->wol |= IXGBE_WUFC_MC;
2341 	if (wol->wolopts & WAKE_BCAST)
2342 		adapter->wol |= IXGBE_WUFC_BC;
2343 	if (wol->wolopts & WAKE_MAGIC)
2344 		adapter->wol |= IXGBE_WUFC_MAG;
2345 
2346 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2347 
2348 	return 0;
2349 }
2350 
ixgbe_nway_reset(struct net_device * netdev)2351 static int ixgbe_nway_reset(struct net_device *netdev)
2352 {
2353 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2354 
2355 	if (netif_running(netdev))
2356 		ixgbe_reinit_locked(adapter);
2357 
2358 	return 0;
2359 }
2360 
ixgbe_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)2361 static int ixgbe_set_phys_id(struct net_device *netdev,
2362 			     enum ethtool_phys_id_state state)
2363 {
2364 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2365 	struct ixgbe_hw *hw = &adapter->hw;
2366 
2367 	if (!hw->mac.ops.led_on || !hw->mac.ops.led_off)
2368 		return -EOPNOTSUPP;
2369 
2370 	switch (state) {
2371 	case ETHTOOL_ID_ACTIVE:
2372 		adapter->led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2373 		return 2;
2374 
2375 	case ETHTOOL_ID_ON:
2376 		hw->mac.ops.led_on(hw, hw->mac.led_link_act);
2377 		break;
2378 
2379 	case ETHTOOL_ID_OFF:
2380 		hw->mac.ops.led_off(hw, hw->mac.led_link_act);
2381 		break;
2382 
2383 	case ETHTOOL_ID_INACTIVE:
2384 		/* Restore LED settings */
2385 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_LEDCTL, adapter->led_reg);
2386 		break;
2387 	}
2388 
2389 	return 0;
2390 }
2391 
ixgbe_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)2392 static int ixgbe_get_coalesce(struct net_device *netdev,
2393 			      struct ethtool_coalesce *ec,
2394 			      struct kernel_ethtool_coalesce *kernel_coal,
2395 			      struct netlink_ext_ack *extack)
2396 {
2397 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2398 
2399 	/* only valid if in constant ITR mode */
2400 	if (adapter->rx_itr_setting <= 1)
2401 		ec->rx_coalesce_usecs = adapter->rx_itr_setting;
2402 	else
2403 		ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
2404 
2405 	/* if in mixed tx/rx queues per vector mode, report only rx settings */
2406 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2407 		return 0;
2408 
2409 	/* only valid if in constant ITR mode */
2410 	if (adapter->tx_itr_setting <= 1)
2411 		ec->tx_coalesce_usecs = adapter->tx_itr_setting;
2412 	else
2413 		ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
2414 
2415 	return 0;
2416 }
2417 
2418 /*
2419  * this function must be called before setting the new value of
2420  * rx_itr_setting
2421  */
ixgbe_update_rsc(struct ixgbe_adapter * adapter)2422 static bool ixgbe_update_rsc(struct ixgbe_adapter *adapter)
2423 {
2424 	struct net_device *netdev = adapter->netdev;
2425 
2426 	/* nothing to do if LRO or RSC are not enabled */
2427 	if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) ||
2428 	    !(netdev->features & NETIF_F_LRO))
2429 		return false;
2430 
2431 	/* check the feature flag value and enable RSC if necessary */
2432 	if (adapter->rx_itr_setting == 1 ||
2433 	    adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) {
2434 		if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) {
2435 			adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
2436 			e_info(probe, "rx-usecs value high enough to re-enable RSC\n");
2437 			return true;
2438 		}
2439 	/* if interrupt rate is too high then disable RSC */
2440 	} else if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
2441 		adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
2442 		e_info(probe, "rx-usecs set too low, disabling RSC\n");
2443 		return true;
2444 	}
2445 	return false;
2446 }
2447 
ixgbe_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)2448 static int ixgbe_set_coalesce(struct net_device *netdev,
2449 			      struct ethtool_coalesce *ec,
2450 			      struct kernel_ethtool_coalesce *kernel_coal,
2451 			      struct netlink_ext_ack *extack)
2452 {
2453 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
2454 	struct ixgbe_q_vector *q_vector;
2455 	int i;
2456 	u16 tx_itr_param, rx_itr_param, tx_itr_prev;
2457 	bool need_reset = false;
2458 
2459 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) {
2460 		/* reject Tx specific changes in case of mixed RxTx vectors */
2461 		if (ec->tx_coalesce_usecs)
2462 			return -EINVAL;
2463 		tx_itr_prev = adapter->rx_itr_setting;
2464 	} else {
2465 		tx_itr_prev = adapter->tx_itr_setting;
2466 	}
2467 
2468 	if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
2469 	    (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
2470 		return -EINVAL;
2471 
2472 	if (ec->rx_coalesce_usecs > 1)
2473 		adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
2474 	else
2475 		adapter->rx_itr_setting = ec->rx_coalesce_usecs;
2476 
2477 	if (adapter->rx_itr_setting == 1)
2478 		rx_itr_param = IXGBE_20K_ITR;
2479 	else
2480 		rx_itr_param = adapter->rx_itr_setting;
2481 
2482 	if (ec->tx_coalesce_usecs > 1)
2483 		adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
2484 	else
2485 		adapter->tx_itr_setting = ec->tx_coalesce_usecs;
2486 
2487 	if (adapter->tx_itr_setting == 1)
2488 		tx_itr_param = IXGBE_12K_ITR;
2489 	else
2490 		tx_itr_param = adapter->tx_itr_setting;
2491 
2492 	/* mixed Rx/Tx */
2493 	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2494 		adapter->tx_itr_setting = adapter->rx_itr_setting;
2495 
2496 	/* detect ITR changes that require update of TXDCTL.WTHRESH */
2497 	if ((adapter->tx_itr_setting != 1) &&
2498 	    (adapter->tx_itr_setting < IXGBE_100K_ITR)) {
2499 		if ((tx_itr_prev == 1) ||
2500 		    (tx_itr_prev >= IXGBE_100K_ITR))
2501 			need_reset = true;
2502 	} else {
2503 		if ((tx_itr_prev != 1) &&
2504 		    (tx_itr_prev < IXGBE_100K_ITR))
2505 			need_reset = true;
2506 	}
2507 
2508 	/* check the old value and enable RSC if necessary */
2509 	need_reset |= ixgbe_update_rsc(adapter);
2510 
2511 	for (i = 0; i < adapter->num_q_vectors; i++) {
2512 		q_vector = adapter->q_vector[i];
2513 		if (q_vector->tx.count && !q_vector->rx.count)
2514 			/* tx only */
2515 			q_vector->itr = tx_itr_param;
2516 		else
2517 			/* rx only or mixed */
2518 			q_vector->itr = rx_itr_param;
2519 		ixgbe_write_eitr(q_vector);
2520 	}
2521 
2522 	/*
2523 	 * do reset here at the end to make sure EITR==0 case is handled
2524 	 * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
2525 	 * also locks in RSC enable/disable which requires reset
2526 	 */
2527 	if (need_reset)
2528 		ixgbe_do_reset(netdev);
2529 
2530 	return 0;
2531 }
2532 
ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2533 static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2534 					struct ethtool_rxnfc *cmd)
2535 {
2536 	union ixgbe_atr_input *mask = &adapter->fdir_mask;
2537 	struct ethtool_rx_flow_spec *fsp =
2538 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2539 	struct hlist_node *node2;
2540 	struct ixgbe_fdir_filter *rule = NULL;
2541 
2542 	/* report total rule count */
2543 	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2544 
2545 	hlist_for_each_entry_safe(rule, node2,
2546 				  &adapter->fdir_filter_list, fdir_node) {
2547 		if (fsp->location <= rule->sw_idx)
2548 			break;
2549 	}
2550 
2551 	if (!rule || fsp->location != rule->sw_idx)
2552 		return -EINVAL;
2553 
2554 	/* fill out the flow spec entry */
2555 
2556 	/* set flow type field */
2557 	switch (rule->filter.formatted.flow_type) {
2558 	case IXGBE_ATR_FLOW_TYPE_TCPV4:
2559 		fsp->flow_type = TCP_V4_FLOW;
2560 		break;
2561 	case IXGBE_ATR_FLOW_TYPE_UDPV4:
2562 		fsp->flow_type = UDP_V4_FLOW;
2563 		break;
2564 	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2565 		fsp->flow_type = SCTP_V4_FLOW;
2566 		break;
2567 	case IXGBE_ATR_FLOW_TYPE_IPV4:
2568 		fsp->flow_type = IP_USER_FLOW;
2569 		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2570 		fsp->h_u.usr_ip4_spec.proto = 0;
2571 		fsp->m_u.usr_ip4_spec.proto = 0;
2572 		break;
2573 	default:
2574 		return -EINVAL;
2575 	}
2576 
2577 	fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
2578 	fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
2579 	fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
2580 	fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
2581 	fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
2582 	fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
2583 	fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
2584 	fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
2585 	fsp->h_ext.vlan_tci = rule->filter.formatted.vlan_id;
2586 	fsp->m_ext.vlan_tci = mask->formatted.vlan_id;
2587 	fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
2588 	fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
2589 	fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
2590 	fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
2591 	fsp->flow_type |= FLOW_EXT;
2592 
2593 	/* record action */
2594 	if (rule->action == IXGBE_FDIR_DROP_QUEUE)
2595 		fsp->ring_cookie = RX_CLS_FLOW_DISC;
2596 	else
2597 		fsp->ring_cookie = rule->action;
2598 
2599 	return 0;
2600 }
2601 
ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd,u32 * rule_locs)2602 static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
2603 				      struct ethtool_rxnfc *cmd,
2604 				      u32 *rule_locs)
2605 {
2606 	struct hlist_node *node2;
2607 	struct ixgbe_fdir_filter *rule;
2608 	int cnt = 0;
2609 
2610 	/* report total rule count */
2611 	cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2612 
2613 	hlist_for_each_entry_safe(rule, node2,
2614 				  &adapter->fdir_filter_list, fdir_node) {
2615 		if (cnt == cmd->rule_cnt)
2616 			return -EMSGSIZE;
2617 		rule_locs[cnt] = rule->sw_idx;
2618 		cnt++;
2619 	}
2620 
2621 	cmd->rule_cnt = cnt;
2622 
2623 	return 0;
2624 }
2625 
ixgbe_get_rss_hash_opts(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2626 static int ixgbe_get_rss_hash_opts(struct ixgbe_adapter *adapter,
2627 				   struct ethtool_rxnfc *cmd)
2628 {
2629 	cmd->data = 0;
2630 
2631 	/* Report default options for RSS on ixgbe */
2632 	switch (cmd->flow_type) {
2633 	case TCP_V4_FLOW:
2634 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2635 		fallthrough;
2636 	case UDP_V4_FLOW:
2637 		if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
2638 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2639 		fallthrough;
2640 	case SCTP_V4_FLOW:
2641 	case AH_ESP_V4_FLOW:
2642 	case AH_V4_FLOW:
2643 	case ESP_V4_FLOW:
2644 	case IPV4_FLOW:
2645 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2646 		break;
2647 	case TCP_V6_FLOW:
2648 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2649 		fallthrough;
2650 	case UDP_V6_FLOW:
2651 		if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
2652 			cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2653 		fallthrough;
2654 	case SCTP_V6_FLOW:
2655 	case AH_ESP_V6_FLOW:
2656 	case AH_V6_FLOW:
2657 	case ESP_V6_FLOW:
2658 	case IPV6_FLOW:
2659 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2660 		break;
2661 	default:
2662 		return -EINVAL;
2663 	}
2664 
2665 	return 0;
2666 }
2667 
ixgbe_rss_indir_tbl_max(struct ixgbe_adapter * adapter)2668 static int ixgbe_rss_indir_tbl_max(struct ixgbe_adapter *adapter)
2669 {
2670 	if (adapter->hw.mac.type < ixgbe_mac_X550)
2671 		return 16;
2672 	else
2673 		return 64;
2674 }
2675 
ixgbe_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd,u32 * rule_locs)2676 static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
2677 			   u32 *rule_locs)
2678 {
2679 	struct ixgbe_adapter *adapter = netdev_priv(dev);
2680 	int ret = -EOPNOTSUPP;
2681 
2682 	switch (cmd->cmd) {
2683 	case ETHTOOL_GRXRINGS:
2684 		cmd->data = min_t(int, adapter->num_rx_queues,
2685 				  ixgbe_rss_indir_tbl_max(adapter));
2686 		ret = 0;
2687 		break;
2688 	case ETHTOOL_GRXCLSRLCNT:
2689 		cmd->rule_cnt = adapter->fdir_filter_count;
2690 		ret = 0;
2691 		break;
2692 	case ETHTOOL_GRXCLSRULE:
2693 		ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
2694 		break;
2695 	case ETHTOOL_GRXCLSRLALL:
2696 		ret = ixgbe_get_ethtool_fdir_all(adapter, cmd, rule_locs);
2697 		break;
2698 	case ETHTOOL_GRXFH:
2699 		ret = ixgbe_get_rss_hash_opts(adapter, cmd);
2700 		break;
2701 	default:
2702 		break;
2703 	}
2704 
2705 	return ret;
2706 }
2707 
ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ixgbe_fdir_filter * input,u16 sw_idx)2708 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2709 				    struct ixgbe_fdir_filter *input,
2710 				    u16 sw_idx)
2711 {
2712 	struct ixgbe_hw *hw = &adapter->hw;
2713 	struct hlist_node *node2;
2714 	struct ixgbe_fdir_filter *rule, *parent;
2715 	int err = -EINVAL;
2716 
2717 	parent = NULL;
2718 	rule = NULL;
2719 
2720 	hlist_for_each_entry_safe(rule, node2,
2721 				  &adapter->fdir_filter_list, fdir_node) {
2722 		/* hash found, or no matching entry */
2723 		if (rule->sw_idx >= sw_idx)
2724 			break;
2725 		parent = rule;
2726 	}
2727 
2728 	/* if there is an old rule occupying our place remove it */
2729 	if (rule && (rule->sw_idx == sw_idx)) {
2730 		if (!input || (rule->filter.formatted.bkt_hash !=
2731 			       input->filter.formatted.bkt_hash)) {
2732 			err = ixgbe_fdir_erase_perfect_filter_82599(hw,
2733 								&rule->filter,
2734 								sw_idx);
2735 		}
2736 
2737 		hlist_del(&rule->fdir_node);
2738 		kfree(rule);
2739 		adapter->fdir_filter_count--;
2740 	}
2741 
2742 	/*
2743 	 * If no input this was a delete, err should be 0 if a rule was
2744 	 * successfully found and removed from the list else -EINVAL
2745 	 */
2746 	if (!input)
2747 		return err;
2748 
2749 	/* initialize node and set software index */
2750 	INIT_HLIST_NODE(&input->fdir_node);
2751 
2752 	/* add filter to the list */
2753 	if (parent)
2754 		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2755 	else
2756 		hlist_add_head(&input->fdir_node,
2757 			       &adapter->fdir_filter_list);
2758 
2759 	/* update counts */
2760 	adapter->fdir_filter_count++;
2761 
2762 	return 0;
2763 }
2764 
ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec * fsp,u8 * flow_type)2765 static int ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
2766 				       u8 *flow_type)
2767 {
2768 	switch (fsp->flow_type & ~FLOW_EXT) {
2769 	case TCP_V4_FLOW:
2770 		*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2771 		break;
2772 	case UDP_V4_FLOW:
2773 		*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2774 		break;
2775 	case SCTP_V4_FLOW:
2776 		*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2777 		break;
2778 	case IP_USER_FLOW:
2779 		switch (fsp->h_u.usr_ip4_spec.proto) {
2780 		case IPPROTO_TCP:
2781 			*flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2782 			break;
2783 		case IPPROTO_UDP:
2784 			*flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2785 			break;
2786 		case IPPROTO_SCTP:
2787 			*flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2788 			break;
2789 		case 0:
2790 			if (!fsp->m_u.usr_ip4_spec.proto) {
2791 				*flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
2792 				break;
2793 			}
2794 			fallthrough;
2795 		default:
2796 			return 0;
2797 		}
2798 		break;
2799 	default:
2800 		return 0;
2801 	}
2802 
2803 	return 1;
2804 }
2805 
ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2806 static int ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2807 					struct ethtool_rxnfc *cmd)
2808 {
2809 	struct ethtool_rx_flow_spec *fsp =
2810 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2811 	struct ixgbe_hw *hw = &adapter->hw;
2812 	struct ixgbe_fdir_filter *input;
2813 	union ixgbe_atr_input mask;
2814 	u8 queue;
2815 	int err;
2816 
2817 	if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
2818 		return -EOPNOTSUPP;
2819 
2820 	/* ring_cookie is a masked into a set of queues and ixgbe pools or
2821 	 * we use the drop index.
2822 	 */
2823 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
2824 		queue = IXGBE_FDIR_DROP_QUEUE;
2825 	} else {
2826 		u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
2827 		u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
2828 
2829 		if (!vf && (ring >= adapter->num_rx_queues))
2830 			return -EINVAL;
2831 		else if (vf &&
2832 			 ((vf > adapter->num_vfs) ||
2833 			   ring >= adapter->num_rx_queues_per_pool))
2834 			return -EINVAL;
2835 
2836 		/* Map the ring onto the absolute queue index */
2837 		if (!vf)
2838 			queue = adapter->rx_ring[ring]->reg_idx;
2839 		else
2840 			queue = ((vf - 1) *
2841 				adapter->num_rx_queues_per_pool) + ring;
2842 	}
2843 
2844 	/* Don't allow indexes to exist outside of available space */
2845 	if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) {
2846 		e_err(drv, "Location out of range\n");
2847 		return -EINVAL;
2848 	}
2849 
2850 	input = kzalloc(sizeof(*input), GFP_ATOMIC);
2851 	if (!input)
2852 		return -ENOMEM;
2853 
2854 	memset(&mask, 0, sizeof(union ixgbe_atr_input));
2855 
2856 	/* set SW index */
2857 	input->sw_idx = fsp->location;
2858 
2859 	/* record flow type */
2860 	if (!ixgbe_flowspec_to_flow_type(fsp,
2861 					 &input->filter.formatted.flow_type)) {
2862 		e_err(drv, "Unrecognized flow type\n");
2863 		goto err_out;
2864 	}
2865 
2866 	mask.formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2867 				   IXGBE_ATR_L4TYPE_MASK;
2868 
2869 	if (input->filter.formatted.flow_type == IXGBE_ATR_FLOW_TYPE_IPV4)
2870 		mask.formatted.flow_type &= IXGBE_ATR_L4TYPE_IPV6_MASK;
2871 
2872 	/* Copy input into formatted structures */
2873 	input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2874 	mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
2875 	input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2876 	mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
2877 	input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
2878 	mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
2879 	input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
2880 	mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
2881 
2882 	if (fsp->flow_type & FLOW_EXT) {
2883 		input->filter.formatted.vm_pool =
2884 				(unsigned char)ntohl(fsp->h_ext.data[1]);
2885 		mask.formatted.vm_pool =
2886 				(unsigned char)ntohl(fsp->m_ext.data[1]);
2887 		input->filter.formatted.vlan_id = fsp->h_ext.vlan_tci;
2888 		mask.formatted.vlan_id = fsp->m_ext.vlan_tci;
2889 		input->filter.formatted.flex_bytes =
2890 						fsp->h_ext.vlan_etype;
2891 		mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
2892 	}
2893 
2894 	/* determine if we need to drop or route the packet */
2895 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2896 		input->action = IXGBE_FDIR_DROP_QUEUE;
2897 	else
2898 		input->action = fsp->ring_cookie;
2899 
2900 	spin_lock(&adapter->fdir_perfect_lock);
2901 
2902 	if (hlist_empty(&adapter->fdir_filter_list)) {
2903 		/* save mask and program input mask into HW */
2904 		memcpy(&adapter->fdir_mask, &mask, sizeof(mask));
2905 		err = ixgbe_fdir_set_input_mask_82599(hw, &mask);
2906 		if (err) {
2907 			e_err(drv, "Error writing mask\n");
2908 			goto err_out_w_lock;
2909 		}
2910 	} else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) {
2911 		e_err(drv, "Only one mask supported per port\n");
2912 		goto err_out_w_lock;
2913 	}
2914 
2915 	/* apply mask and compute/store hash */
2916 	ixgbe_atr_compute_perfect_hash_82599(&input->filter, &mask);
2917 
2918 	/* program filters to filter memory */
2919 	err = ixgbe_fdir_write_perfect_filter_82599(hw,
2920 				&input->filter, input->sw_idx, queue);
2921 	if (err)
2922 		goto err_out_w_lock;
2923 
2924 	ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
2925 
2926 	spin_unlock(&adapter->fdir_perfect_lock);
2927 
2928 	return err;
2929 err_out_w_lock:
2930 	spin_unlock(&adapter->fdir_perfect_lock);
2931 err_out:
2932 	kfree(input);
2933 	return -EINVAL;
2934 }
2935 
ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * cmd)2936 static int ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2937 					struct ethtool_rxnfc *cmd)
2938 {
2939 	struct ethtool_rx_flow_spec *fsp =
2940 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2941 	int err;
2942 
2943 	spin_lock(&adapter->fdir_perfect_lock);
2944 	err = ixgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location);
2945 	spin_unlock(&adapter->fdir_perfect_lock);
2946 
2947 	return err;
2948 }
2949 
2950 #define UDP_RSS_FLAGS (IXGBE_FLAG2_RSS_FIELD_IPV4_UDP | \
2951 		       IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
ixgbe_set_rss_hash_opt(struct ixgbe_adapter * adapter,struct ethtool_rxnfc * nfc)2952 static int ixgbe_set_rss_hash_opt(struct ixgbe_adapter *adapter,
2953 				  struct ethtool_rxnfc *nfc)
2954 {
2955 	u32 flags2 = adapter->flags2;
2956 
2957 	/*
2958 	 * RSS does not support anything other than hashing
2959 	 * to queues on src and dst IPs and ports
2960 	 */
2961 	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2962 			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
2963 		return -EINVAL;
2964 
2965 	switch (nfc->flow_type) {
2966 	case TCP_V4_FLOW:
2967 	case TCP_V6_FLOW:
2968 		if (!(nfc->data & RXH_IP_SRC) ||
2969 		    !(nfc->data & RXH_IP_DST) ||
2970 		    !(nfc->data & RXH_L4_B_0_1) ||
2971 		    !(nfc->data & RXH_L4_B_2_3))
2972 			return -EINVAL;
2973 		break;
2974 	case UDP_V4_FLOW:
2975 		if (!(nfc->data & RXH_IP_SRC) ||
2976 		    !(nfc->data & RXH_IP_DST))
2977 			return -EINVAL;
2978 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2979 		case 0:
2980 			flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
2981 			break;
2982 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2983 			flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
2984 			break;
2985 		default:
2986 			return -EINVAL;
2987 		}
2988 		break;
2989 	case UDP_V6_FLOW:
2990 		if (!(nfc->data & RXH_IP_SRC) ||
2991 		    !(nfc->data & RXH_IP_DST))
2992 			return -EINVAL;
2993 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2994 		case 0:
2995 			flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
2996 			break;
2997 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2998 			flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
2999 			break;
3000 		default:
3001 			return -EINVAL;
3002 		}
3003 		break;
3004 	case AH_ESP_V4_FLOW:
3005 	case AH_V4_FLOW:
3006 	case ESP_V4_FLOW:
3007 	case SCTP_V4_FLOW:
3008 	case AH_ESP_V6_FLOW:
3009 	case AH_V6_FLOW:
3010 	case ESP_V6_FLOW:
3011 	case SCTP_V6_FLOW:
3012 		if (!(nfc->data & RXH_IP_SRC) ||
3013 		    !(nfc->data & RXH_IP_DST) ||
3014 		    (nfc->data & RXH_L4_B_0_1) ||
3015 		    (nfc->data & RXH_L4_B_2_3))
3016 			return -EINVAL;
3017 		break;
3018 	default:
3019 		return -EINVAL;
3020 	}
3021 
3022 	/* if we changed something we need to update flags */
3023 	if (flags2 != adapter->flags2) {
3024 		struct ixgbe_hw *hw = &adapter->hw;
3025 		u32 mrqc;
3026 		unsigned int pf_pool = adapter->num_vfs;
3027 
3028 		if ((hw->mac.type >= ixgbe_mac_X550) &&
3029 		    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
3030 			mrqc = IXGBE_READ_REG(hw, IXGBE_PFVFMRQC(pf_pool));
3031 		else
3032 			mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);
3033 
3034 		if ((flags2 & UDP_RSS_FLAGS) &&
3035 		    !(adapter->flags2 & UDP_RSS_FLAGS))
3036 			e_warn(drv, "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
3037 
3038 		adapter->flags2 = flags2;
3039 
3040 		/* Perform hash on these packet types */
3041 		mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4
3042 		      | IXGBE_MRQC_RSS_FIELD_IPV4_TCP
3043 		      | IXGBE_MRQC_RSS_FIELD_IPV6
3044 		      | IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
3045 
3046 		mrqc &= ~(IXGBE_MRQC_RSS_FIELD_IPV4_UDP |
3047 			  IXGBE_MRQC_RSS_FIELD_IPV6_UDP);
3048 
3049 		if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
3050 			mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
3051 
3052 		if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
3053 			mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
3054 
3055 		if ((hw->mac.type >= ixgbe_mac_X550) &&
3056 		    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
3057 			IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), mrqc);
3058 		else
3059 			IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
3060 	}
3061 
3062 	return 0;
3063 }
3064 
ixgbe_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd)3065 static int ixgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
3066 {
3067 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3068 	int ret = -EOPNOTSUPP;
3069 
3070 	switch (cmd->cmd) {
3071 	case ETHTOOL_SRXCLSRLINS:
3072 		ret = ixgbe_add_ethtool_fdir_entry(adapter, cmd);
3073 		break;
3074 	case ETHTOOL_SRXCLSRLDEL:
3075 		ret = ixgbe_del_ethtool_fdir_entry(adapter, cmd);
3076 		break;
3077 	case ETHTOOL_SRXFH:
3078 		ret = ixgbe_set_rss_hash_opt(adapter, cmd);
3079 		break;
3080 	default:
3081 		break;
3082 	}
3083 
3084 	return ret;
3085 }
3086 
ixgbe_get_rxfh_key_size(struct net_device * netdev)3087 static u32 ixgbe_get_rxfh_key_size(struct net_device *netdev)
3088 {
3089 	return IXGBE_RSS_KEY_SIZE;
3090 }
3091 
ixgbe_rss_indir_size(struct net_device * netdev)3092 static u32 ixgbe_rss_indir_size(struct net_device *netdev)
3093 {
3094 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3095 
3096 	return ixgbe_rss_indir_tbl_entries(adapter);
3097 }
3098 
ixgbe_get_reta(struct ixgbe_adapter * adapter,u32 * indir)3099 static void ixgbe_get_reta(struct ixgbe_adapter *adapter, u32 *indir)
3100 {
3101 	int i, reta_size = ixgbe_rss_indir_tbl_entries(adapter);
3102 	u16 rss_m = adapter->ring_feature[RING_F_RSS].mask;
3103 
3104 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
3105 		rss_m = adapter->ring_feature[RING_F_RSS].indices - 1;
3106 
3107 	for (i = 0; i < reta_size; i++)
3108 		indir[i] = adapter->rss_indir_tbl[i] & rss_m;
3109 }
3110 
ixgbe_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)3111 static int ixgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
3112 			  u8 *hfunc)
3113 {
3114 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3115 
3116 	if (hfunc)
3117 		*hfunc = ETH_RSS_HASH_TOP;
3118 
3119 	if (indir)
3120 		ixgbe_get_reta(adapter, indir);
3121 
3122 	if (key)
3123 		memcpy(key, adapter->rss_key, ixgbe_get_rxfh_key_size(netdev));
3124 
3125 	return 0;
3126 }
3127 
ixgbe_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)3128 static int ixgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
3129 			  const u8 *key, const u8 hfunc)
3130 {
3131 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3132 	int i;
3133 	u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
3134 
3135 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3136 		return -EOPNOTSUPP;
3137 
3138 	/* Fill out the redirection table */
3139 	if (indir) {
3140 		int max_queues = min_t(int, adapter->num_rx_queues,
3141 				       ixgbe_rss_indir_tbl_max(adapter));
3142 
3143 		/*Allow at least 2 queues w/ SR-IOV.*/
3144 		if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
3145 		    (max_queues < 2))
3146 			max_queues = 2;
3147 
3148 		/* Verify user input. */
3149 		for (i = 0; i < reta_entries; i++)
3150 			if (indir[i] >= max_queues)
3151 				return -EINVAL;
3152 
3153 		for (i = 0; i < reta_entries; i++)
3154 			adapter->rss_indir_tbl[i] = indir[i];
3155 
3156 		ixgbe_store_reta(adapter);
3157 	}
3158 
3159 	/* Fill out the rss hash key */
3160 	if (key) {
3161 		memcpy(adapter->rss_key, key, ixgbe_get_rxfh_key_size(netdev));
3162 		ixgbe_store_key(adapter);
3163 	}
3164 
3165 	return 0;
3166 }
3167 
ixgbe_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)3168 static int ixgbe_get_ts_info(struct net_device *dev,
3169 			     struct ethtool_ts_info *info)
3170 {
3171 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3172 
3173 	/* we always support timestamping disabled */
3174 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
3175 
3176 	switch (adapter->hw.mac.type) {
3177 	case ixgbe_mac_X550:
3178 	case ixgbe_mac_X550EM_x:
3179 	case ixgbe_mac_x550em_a:
3180 		info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
3181 		break;
3182 	case ixgbe_mac_X540:
3183 	case ixgbe_mac_82599EB:
3184 		info->rx_filters |=
3185 			BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
3186 			BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
3187 			BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
3188 		break;
3189 	default:
3190 		return ethtool_op_get_ts_info(dev, info);
3191 	}
3192 
3193 	info->so_timestamping =
3194 		SOF_TIMESTAMPING_TX_SOFTWARE |
3195 		SOF_TIMESTAMPING_RX_SOFTWARE |
3196 		SOF_TIMESTAMPING_SOFTWARE |
3197 		SOF_TIMESTAMPING_TX_HARDWARE |
3198 		SOF_TIMESTAMPING_RX_HARDWARE |
3199 		SOF_TIMESTAMPING_RAW_HARDWARE;
3200 
3201 	if (adapter->ptp_clock)
3202 		info->phc_index = ptp_clock_index(adapter->ptp_clock);
3203 	else
3204 		info->phc_index = -1;
3205 
3206 	info->tx_types =
3207 		BIT(HWTSTAMP_TX_OFF) |
3208 		BIT(HWTSTAMP_TX_ON);
3209 
3210 	return 0;
3211 }
3212 
ixgbe_max_channels(struct ixgbe_adapter * adapter)3213 static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter)
3214 {
3215 	unsigned int max_combined;
3216 	u8 tcs = adapter->hw_tcs;
3217 
3218 	if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
3219 		/* We only support one q_vector without MSI-X */
3220 		max_combined = 1;
3221 	} else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
3222 		/* Limit value based on the queue mask */
3223 		max_combined = adapter->ring_feature[RING_F_RSS].mask + 1;
3224 	} else if (tcs > 1) {
3225 		/* For DCB report channels per traffic class */
3226 		if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
3227 			/* 8 TC w/ 4 queues per TC */
3228 			max_combined = 4;
3229 		} else if (tcs > 4) {
3230 			/* 8 TC w/ 8 queues per TC */
3231 			max_combined = 8;
3232 		} else {
3233 			/* 4 TC w/ 16 queues per TC */
3234 			max_combined = 16;
3235 		}
3236 	} else if (adapter->atr_sample_rate) {
3237 		/* support up to 64 queues with ATR */
3238 		max_combined = IXGBE_MAX_FDIR_INDICES;
3239 	} else {
3240 		/* support up to 16 queues with RSS */
3241 		max_combined = ixgbe_max_rss_indices(adapter);
3242 	}
3243 
3244 	return min_t(int, max_combined, num_online_cpus());
3245 }
3246 
ixgbe_get_channels(struct net_device * dev,struct ethtool_channels * ch)3247 static void ixgbe_get_channels(struct net_device *dev,
3248 			       struct ethtool_channels *ch)
3249 {
3250 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3251 
3252 	/* report maximum channels */
3253 	ch->max_combined = ixgbe_max_channels(adapter);
3254 
3255 	/* report info for other vector */
3256 	if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
3257 		ch->max_other = NON_Q_VECTORS;
3258 		ch->other_count = NON_Q_VECTORS;
3259 	}
3260 
3261 	/* record RSS queues */
3262 	ch->combined_count = adapter->ring_feature[RING_F_RSS].indices;
3263 
3264 	/* nothing else to report if RSS is disabled */
3265 	if (ch->combined_count == 1)
3266 		return;
3267 
3268 	/* we do not support ATR queueing if SR-IOV is enabled */
3269 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
3270 		return;
3271 
3272 	/* same thing goes for being DCB enabled */
3273 	if (adapter->hw_tcs > 1)
3274 		return;
3275 
3276 	/* if ATR is disabled we can exit */
3277 	if (!adapter->atr_sample_rate)
3278 		return;
3279 
3280 	/* report flow director queues as maximum channels */
3281 	ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices;
3282 }
3283 
ixgbe_set_channels(struct net_device * dev,struct ethtool_channels * ch)3284 static int ixgbe_set_channels(struct net_device *dev,
3285 			      struct ethtool_channels *ch)
3286 {
3287 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3288 	unsigned int count = ch->combined_count;
3289 	u8 max_rss_indices = ixgbe_max_rss_indices(adapter);
3290 
3291 	/* verify they are not requesting separate vectors */
3292 	if (!count || ch->rx_count || ch->tx_count)
3293 		return -EINVAL;
3294 
3295 	/* verify other_count has not changed */
3296 	if (ch->other_count != NON_Q_VECTORS)
3297 		return -EINVAL;
3298 
3299 	/* verify the number of channels does not exceed hardware limits */
3300 	if (count > ixgbe_max_channels(adapter))
3301 		return -EINVAL;
3302 
3303 	/* update feature limits from largest to smallest supported values */
3304 	adapter->ring_feature[RING_F_FDIR].limit = count;
3305 
3306 	/* cap RSS limit */
3307 	if (count > max_rss_indices)
3308 		count = max_rss_indices;
3309 	adapter->ring_feature[RING_F_RSS].limit = count;
3310 
3311 #ifdef IXGBE_FCOE
3312 	/* cap FCoE limit at 8 */
3313 	if (count > IXGBE_FCRETA_SIZE)
3314 		count = IXGBE_FCRETA_SIZE;
3315 	adapter->ring_feature[RING_F_FCOE].limit = count;
3316 
3317 #endif
3318 	/* use setup TC to update any traffic class queue mapping */
3319 	return ixgbe_setup_tc(dev, adapter->hw_tcs);
3320 }
3321 
ixgbe_get_module_info(struct net_device * dev,struct ethtool_modinfo * modinfo)3322 static int ixgbe_get_module_info(struct net_device *dev,
3323 				       struct ethtool_modinfo *modinfo)
3324 {
3325 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3326 	struct ixgbe_hw *hw = &adapter->hw;
3327 	s32 status;
3328 	u8 sff8472_rev, addr_mode;
3329 	bool page_swap = false;
3330 
3331 	if (hw->phy.type == ixgbe_phy_fw)
3332 		return -ENXIO;
3333 
3334 	/* Check whether we support SFF-8472 or not */
3335 	status = hw->phy.ops.read_i2c_eeprom(hw,
3336 					     IXGBE_SFF_SFF_8472_COMP,
3337 					     &sff8472_rev);
3338 	if (status)
3339 		return -EIO;
3340 
3341 	/* addressing mode is not supported */
3342 	status = hw->phy.ops.read_i2c_eeprom(hw,
3343 					     IXGBE_SFF_SFF_8472_SWAP,
3344 					     &addr_mode);
3345 	if (status)
3346 		return -EIO;
3347 
3348 	if (addr_mode & IXGBE_SFF_ADDRESSING_MODE) {
3349 		e_err(drv, "Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n");
3350 		page_swap = true;
3351 	}
3352 
3353 	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
3354 	    !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
3355 		/* We have a SFP, but it does not support SFF-8472 */
3356 		modinfo->type = ETH_MODULE_SFF_8079;
3357 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3358 	} else {
3359 		/* We have a SFP which supports a revision of SFF-8472. */
3360 		modinfo->type = ETH_MODULE_SFF_8472;
3361 		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3362 	}
3363 
3364 	return 0;
3365 }
3366 
ixgbe_get_module_eeprom(struct net_device * dev,struct ethtool_eeprom * ee,u8 * data)3367 static int ixgbe_get_module_eeprom(struct net_device *dev,
3368 					 struct ethtool_eeprom *ee,
3369 					 u8 *data)
3370 {
3371 	struct ixgbe_adapter *adapter = netdev_priv(dev);
3372 	struct ixgbe_hw *hw = &adapter->hw;
3373 	s32 status = -EFAULT;
3374 	u8 databyte = 0xFF;
3375 	int i = 0;
3376 
3377 	if (ee->len == 0)
3378 		return -EINVAL;
3379 
3380 	if (hw->phy.type == ixgbe_phy_fw)
3381 		return -ENXIO;
3382 
3383 	for (i = ee->offset; i < ee->offset + ee->len; i++) {
3384 		/* I2C reads can take long time */
3385 		if (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
3386 			return -EBUSY;
3387 
3388 		if (i < ETH_MODULE_SFF_8079_LEN)
3389 			status = hw->phy.ops.read_i2c_eeprom(hw, i, &databyte);
3390 		else
3391 			status = hw->phy.ops.read_i2c_sff8472(hw, i, &databyte);
3392 
3393 		if (status)
3394 			return -EIO;
3395 
3396 		data[i - ee->offset] = databyte;
3397 	}
3398 
3399 	return 0;
3400 }
3401 
3402 static const struct {
3403 	ixgbe_link_speed mac_speed;
3404 	u32 supported;
3405 } ixgbe_ls_map[] = {
3406 	{ IXGBE_LINK_SPEED_10_FULL, SUPPORTED_10baseT_Full },
3407 	{ IXGBE_LINK_SPEED_100_FULL, SUPPORTED_100baseT_Full },
3408 	{ IXGBE_LINK_SPEED_1GB_FULL, SUPPORTED_1000baseT_Full },
3409 	{ IXGBE_LINK_SPEED_2_5GB_FULL, SUPPORTED_2500baseX_Full },
3410 	{ IXGBE_LINK_SPEED_10GB_FULL, SUPPORTED_10000baseT_Full },
3411 };
3412 
3413 static const struct {
3414 	u32 lp_advertised;
3415 	u32 mac_speed;
3416 } ixgbe_lp_map[] = {
3417 	{ FW_PHY_ACT_UD_2_100M_TX_EEE, SUPPORTED_100baseT_Full },
3418 	{ FW_PHY_ACT_UD_2_1G_T_EEE, SUPPORTED_1000baseT_Full },
3419 	{ FW_PHY_ACT_UD_2_10G_T_EEE, SUPPORTED_10000baseT_Full },
3420 	{ FW_PHY_ACT_UD_2_1G_KX_EEE, SUPPORTED_1000baseKX_Full },
3421 	{ FW_PHY_ACT_UD_2_10G_KX4_EEE, SUPPORTED_10000baseKX4_Full },
3422 	{ FW_PHY_ACT_UD_2_10G_KR_EEE, SUPPORTED_10000baseKR_Full},
3423 };
3424 
3425 static int
ixgbe_get_eee_fw(struct ixgbe_adapter * adapter,struct ethtool_eee * edata)3426 ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_eee *edata)
3427 {
3428 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
3429 	struct ixgbe_hw *hw = &adapter->hw;
3430 	s32 rc;
3431 	u16 i;
3432 
3433 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_UD_2, &info);
3434 	if (rc)
3435 		return rc;
3436 
3437 	edata->lp_advertised = 0;
3438 	for (i = 0; i < ARRAY_SIZE(ixgbe_lp_map); ++i) {
3439 		if (info[0] & ixgbe_lp_map[i].lp_advertised)
3440 			edata->lp_advertised |= ixgbe_lp_map[i].mac_speed;
3441 	}
3442 
3443 	edata->supported = 0;
3444 	for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3445 		if (hw->phy.eee_speeds_supported & ixgbe_ls_map[i].mac_speed)
3446 			edata->supported |= ixgbe_ls_map[i].supported;
3447 	}
3448 
3449 	edata->advertised = 0;
3450 	for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3451 		if (hw->phy.eee_speeds_advertised & ixgbe_ls_map[i].mac_speed)
3452 			edata->advertised |= ixgbe_ls_map[i].supported;
3453 	}
3454 
3455 	edata->eee_enabled = !!edata->advertised;
3456 	edata->tx_lpi_enabled = edata->eee_enabled;
3457 	if (edata->advertised & edata->lp_advertised)
3458 		edata->eee_active = true;
3459 
3460 	return 0;
3461 }
3462 
ixgbe_get_eee(struct net_device * netdev,struct ethtool_eee * edata)3463 static int ixgbe_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
3464 {
3465 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3466 	struct ixgbe_hw *hw = &adapter->hw;
3467 
3468 	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3469 		return -EOPNOTSUPP;
3470 
3471 	if (hw->phy.eee_speeds_supported && hw->phy.type == ixgbe_phy_fw)
3472 		return ixgbe_get_eee_fw(adapter, edata);
3473 
3474 	return -EOPNOTSUPP;
3475 }
3476 
ixgbe_set_eee(struct net_device * netdev,struct ethtool_eee * edata)3477 static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
3478 {
3479 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3480 	struct ixgbe_hw *hw = &adapter->hw;
3481 	struct ethtool_eee eee_data;
3482 	s32 ret_val;
3483 
3484 	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3485 		return -EOPNOTSUPP;
3486 
3487 	memset(&eee_data, 0, sizeof(struct ethtool_eee));
3488 
3489 	ret_val = ixgbe_get_eee(netdev, &eee_data);
3490 	if (ret_val)
3491 		return ret_val;
3492 
3493 	if (eee_data.eee_enabled && !edata->eee_enabled) {
3494 		if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) {
3495 			e_err(drv, "Setting EEE tx-lpi is not supported\n");
3496 			return -EINVAL;
3497 		}
3498 
3499 		if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) {
3500 			e_err(drv,
3501 			      "Setting EEE Tx LPI timer is not supported\n");
3502 			return -EINVAL;
3503 		}
3504 
3505 		if (eee_data.advertised != edata->advertised) {
3506 			e_err(drv,
3507 			      "Setting EEE advertised speeds is not supported\n");
3508 			return -EINVAL;
3509 		}
3510 	}
3511 
3512 	if (eee_data.eee_enabled != edata->eee_enabled) {
3513 		if (edata->eee_enabled) {
3514 			adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
3515 			hw->phy.eee_speeds_advertised =
3516 						   hw->phy.eee_speeds_supported;
3517 		} else {
3518 			adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
3519 			hw->phy.eee_speeds_advertised = 0;
3520 		}
3521 
3522 		/* reset link */
3523 		if (netif_running(netdev))
3524 			ixgbe_reinit_locked(adapter);
3525 		else
3526 			ixgbe_reset(adapter);
3527 	}
3528 
3529 	return 0;
3530 }
3531 
ixgbe_get_priv_flags(struct net_device * netdev)3532 static u32 ixgbe_get_priv_flags(struct net_device *netdev)
3533 {
3534 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3535 	u32 priv_flags = 0;
3536 
3537 	if (adapter->flags2 & IXGBE_FLAG2_RX_LEGACY)
3538 		priv_flags |= IXGBE_PRIV_FLAGS_LEGACY_RX;
3539 
3540 	if (adapter->flags2 & IXGBE_FLAG2_VF_IPSEC_ENABLED)
3541 		priv_flags |= IXGBE_PRIV_FLAGS_VF_IPSEC_EN;
3542 
3543 	if (adapter->flags2 & IXGBE_FLAG2_AUTO_DISABLE_VF)
3544 		priv_flags |= IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF;
3545 
3546 	return priv_flags;
3547 }
3548 
ixgbe_set_priv_flags(struct net_device * netdev,u32 priv_flags)3549 static int ixgbe_set_priv_flags(struct net_device *netdev, u32 priv_flags)
3550 {
3551 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
3552 	unsigned int flags2 = adapter->flags2;
3553 	unsigned int i;
3554 
3555 	flags2 &= ~IXGBE_FLAG2_RX_LEGACY;
3556 	if (priv_flags & IXGBE_PRIV_FLAGS_LEGACY_RX)
3557 		flags2 |= IXGBE_FLAG2_RX_LEGACY;
3558 
3559 	flags2 &= ~IXGBE_FLAG2_VF_IPSEC_ENABLED;
3560 	if (priv_flags & IXGBE_PRIV_FLAGS_VF_IPSEC_EN)
3561 		flags2 |= IXGBE_FLAG2_VF_IPSEC_ENABLED;
3562 
3563 	flags2 &= ~IXGBE_FLAG2_AUTO_DISABLE_VF;
3564 	if (priv_flags & IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF) {
3565 		if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
3566 			/* Reset primary abort counter */
3567 			for (i = 0; i < adapter->num_vfs; i++)
3568 				adapter->vfinfo[i].primary_abort_count = 0;
3569 
3570 			flags2 |= IXGBE_FLAG2_AUTO_DISABLE_VF;
3571 		} else {
3572 			e_info(probe,
3573 			       "Cannot set private flags: Operation not supported\n");
3574 			return -EOPNOTSUPP;
3575 		}
3576 	}
3577 
3578 	if (flags2 != adapter->flags2) {
3579 		adapter->flags2 = flags2;
3580 
3581 		/* reset interface to repopulate queues */
3582 		if (netif_running(netdev))
3583 			ixgbe_reinit_locked(adapter);
3584 	}
3585 
3586 	return 0;
3587 }
3588 
3589 static const struct ethtool_ops ixgbe_ethtool_ops = {
3590 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
3591 	.get_drvinfo            = ixgbe_get_drvinfo,
3592 	.get_regs_len           = ixgbe_get_regs_len,
3593 	.get_regs               = ixgbe_get_regs,
3594 	.get_wol                = ixgbe_get_wol,
3595 	.set_wol                = ixgbe_set_wol,
3596 	.nway_reset             = ixgbe_nway_reset,
3597 	.get_link               = ethtool_op_get_link,
3598 	.get_eeprom_len         = ixgbe_get_eeprom_len,
3599 	.get_eeprom             = ixgbe_get_eeprom,
3600 	.set_eeprom             = ixgbe_set_eeprom,
3601 	.get_ringparam          = ixgbe_get_ringparam,
3602 	.set_ringparam          = ixgbe_set_ringparam,
3603 	.get_pause_stats	= ixgbe_get_pause_stats,
3604 	.get_pauseparam         = ixgbe_get_pauseparam,
3605 	.set_pauseparam         = ixgbe_set_pauseparam,
3606 	.get_msglevel           = ixgbe_get_msglevel,
3607 	.set_msglevel           = ixgbe_set_msglevel,
3608 	.self_test              = ixgbe_diag_test,
3609 	.get_strings            = ixgbe_get_strings,
3610 	.set_phys_id            = ixgbe_set_phys_id,
3611 	.get_sset_count         = ixgbe_get_sset_count,
3612 	.get_ethtool_stats      = ixgbe_get_ethtool_stats,
3613 	.get_coalesce           = ixgbe_get_coalesce,
3614 	.set_coalesce           = ixgbe_set_coalesce,
3615 	.get_rxnfc		= ixgbe_get_rxnfc,
3616 	.set_rxnfc		= ixgbe_set_rxnfc,
3617 	.get_rxfh_indir_size	= ixgbe_rss_indir_size,
3618 	.get_rxfh_key_size	= ixgbe_get_rxfh_key_size,
3619 	.get_rxfh		= ixgbe_get_rxfh,
3620 	.set_rxfh		= ixgbe_set_rxfh,
3621 	.get_eee		= ixgbe_get_eee,
3622 	.set_eee		= ixgbe_set_eee,
3623 	.get_channels		= ixgbe_get_channels,
3624 	.set_channels		= ixgbe_set_channels,
3625 	.get_priv_flags		= ixgbe_get_priv_flags,
3626 	.set_priv_flags		= ixgbe_set_priv_flags,
3627 	.get_ts_info		= ixgbe_get_ts_info,
3628 	.get_module_info	= ixgbe_get_module_info,
3629 	.get_module_eeprom	= ixgbe_get_module_eeprom,
3630 	.get_link_ksettings     = ixgbe_get_link_ksettings,
3631 	.set_link_ksettings     = ixgbe_set_link_ksettings,
3632 };
3633 
ixgbe_set_ethtool_ops(struct net_device * netdev)3634 void ixgbe_set_ethtool_ops(struct net_device *netdev)
3635 {
3636 	netdev->ethtool_ops = &ixgbe_ethtool_ops;
3637 }
3638