1 /*
2  * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  *
32  */
33 
34 
35 #include <linux/if_vlan.h>
36 
37 #include <linux/mlx4/device.h>
38 #include <linux/mlx4/cmd.h>
39 
40 #include "en_port.h"
41 #include "mlx4_en.h"
42 
43 
44 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
45 {
46 	struct mlx4_cmd_mailbox *mailbox;
47 	struct mlx4_set_vlan_fltr_mbox *filter;
48 	int i;
49 	int j;
50 	int index = 0;
51 	u32 entry;
52 	int err = 0;
53 
54 	mailbox = mlx4_alloc_cmd_mailbox(dev);
55 	if (IS_ERR(mailbox))
56 		return PTR_ERR(mailbox);
57 
58 	filter = mailbox->buf;
59 	for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
60 		entry = 0;
61 		for (j = 0; j < 32; j++)
62 			if (test_bit(index++, priv->active_vlans))
63 				entry |= 1 << j;
64 		filter->entry[i] = cpu_to_be32(entry);
65 	}
66 	err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
67 		       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
68 	mlx4_free_cmd_mailbox(dev, mailbox);
69 	return err;
70 }
71 
72 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
73 {
74 	struct mlx4_en_query_port_context *qport_context;
75 	struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
76 	struct mlx4_en_port_state *state = &priv->port_state;
77 	struct mlx4_cmd_mailbox *mailbox;
78 	int err;
79 
80 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
81 	if (IS_ERR(mailbox))
82 		return PTR_ERR(mailbox);
83 	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
84 			   MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
85 			   MLX4_CMD_WRAPPED);
86 	if (err)
87 		goto out;
88 	qport_context = mailbox->buf;
89 
90 	/* This command is always accessed from Ethtool context
91 	 * already synchronized, no need in locking */
92 	state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
93 	switch (qport_context->link_speed & MLX4_EN_SPEED_MASK) {
94 	case MLX4_EN_100M_SPEED:
95 		state->link_speed = SPEED_100;
96 		break;
97 	case MLX4_EN_1G_SPEED:
98 		state->link_speed = SPEED_1000;
99 		break;
100 	case MLX4_EN_10G_SPEED_XAUI:
101 	case MLX4_EN_10G_SPEED_XFI:
102 		state->link_speed = SPEED_10000;
103 		break;
104 	case MLX4_EN_20G_SPEED:
105 		state->link_speed = SPEED_20000;
106 		break;
107 	case MLX4_EN_40G_SPEED:
108 		state->link_speed = SPEED_40000;
109 		break;
110 	case MLX4_EN_56G_SPEED:
111 		state->link_speed = SPEED_56000;
112 		break;
113 	default:
114 		state->link_speed = -1;
115 		break;
116 	}
117 
118 	state->transceiver = qport_context->transceiver;
119 
120 	state->flags = 0; /* Reset and recalculate the port flags */
121 	state->flags |= (qport_context->link_up & MLX4_EN_ANC_MASK) ?
122 		MLX4_EN_PORT_ANC : 0;
123 	state->flags |= (qport_context->autoneg & MLX4_EN_AUTONEG_MASK) ?
124 		MLX4_EN_PORT_ANE : 0;
125 
126 out:
127 	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
128 	return err;
129 }
130 
131 /* Each counter set is located in struct mlx4_en_stat_out_mbox
132  * with a const offset between its prio components.
133  * This function runs over a counter set and sum all of it's prio components.
134  */
135 static unsigned long en_stats_adder(__be64 *start, __be64 *next, int num)
136 {
137 	__be64 *curr = start;
138 	unsigned long ret = 0;
139 	int i;
140 	int offset = next - start;
141 
142 	for (i = 0; i < num; i++) {
143 		ret += be64_to_cpu(*curr);
144 		curr += offset;
145 	}
146 
147 	return ret;
148 }
149 
150 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
151 {
152 	struct mlx4_counter tmp_counter_stats;
153 	struct mlx4_en_stat_out_mbox *mlx4_en_stats;
154 	struct mlx4_en_stat_out_flow_control_mbox *flowstats;
155 	struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
156 	struct net_device_stats *stats = &priv->stats;
157 	struct mlx4_cmd_mailbox *mailbox;
158 	u64 in_mod = reset << 8 | port;
159 	int err;
160 	int i, counter_index;
161 	unsigned long sw_rx_dropped = 0;
162 
163 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
164 	if (IS_ERR(mailbox))
165 		return PTR_ERR(mailbox);
166 	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
167 			   MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
168 			   MLX4_CMD_WRAPPED);
169 	if (err)
170 		goto out;
171 
172 	mlx4_en_stats = mailbox->buf;
173 
174 	spin_lock_bh(&priv->stats_lock);
175 
176 	stats->rx_packets = 0;
177 	stats->rx_bytes = 0;
178 	priv->port_stats.rx_chksum_good = 0;
179 	priv->port_stats.rx_chksum_none = 0;
180 	priv->port_stats.rx_chksum_complete = 0;
181 	for (i = 0; i < priv->rx_ring_num; i++) {
182 		stats->rx_packets += priv->rx_ring[i]->packets;
183 		stats->rx_bytes += priv->rx_ring[i]->bytes;
184 		sw_rx_dropped += priv->rx_ring[i]->dropped;
185 		priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok;
186 		priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none;
187 		priv->port_stats.rx_chksum_complete += priv->rx_ring[i]->csum_complete;
188 	}
189 	stats->tx_packets = 0;
190 	stats->tx_bytes = 0;
191 	priv->port_stats.tx_chksum_offload = 0;
192 	priv->port_stats.queue_stopped = 0;
193 	priv->port_stats.wake_queue = 0;
194 	priv->port_stats.tso_packets = 0;
195 	priv->port_stats.xmit_more = 0;
196 
197 	for (i = 0; i < priv->tx_ring_num; i++) {
198 		const struct mlx4_en_tx_ring *ring = priv->tx_ring[i];
199 
200 		stats->tx_packets += ring->packets;
201 		stats->tx_bytes += ring->bytes;
202 		priv->port_stats.tx_chksum_offload += ring->tx_csum;
203 		priv->port_stats.queue_stopped     += ring->queue_stopped;
204 		priv->port_stats.wake_queue        += ring->wake_queue;
205 		priv->port_stats.tso_packets       += ring->tso_packets;
206 		priv->port_stats.xmit_more         += ring->xmit_more;
207 	}
208 	if (mlx4_is_master(mdev->dev)) {
209 		stats->rx_packets = en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
210 						   &mlx4_en_stats->RTOT_prio_1,
211 						   NUM_PRIORITIES);
212 		stats->tx_packets = en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
213 						   &mlx4_en_stats->TTOT_prio_1,
214 						   NUM_PRIORITIES);
215 		stats->rx_bytes = en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
216 						 &mlx4_en_stats->ROCT_prio_1,
217 						 NUM_PRIORITIES);
218 		stats->tx_bytes = en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
219 						 &mlx4_en_stats->TOCT_prio_1,
220 						 NUM_PRIORITIES);
221 	}
222 
223 	/* net device stats */
224 	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
225 			   be32_to_cpu(mlx4_en_stats->RJBBR) +
226 			   be32_to_cpu(mlx4_en_stats->RCRC) +
227 			   be32_to_cpu(mlx4_en_stats->RRUNT) +
228 			   be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
229 			   be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
230 			   be32_to_cpu(mlx4_en_stats->RSHORT) +
231 			   en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
232 					  &mlx4_en_stats->RGIANT_prio_1,
233 					  NUM_PRIORITIES);
234 	stats->tx_errors = en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
235 					  &mlx4_en_stats->TGIANT_prio_1,
236 					  NUM_PRIORITIES);
237 	stats->multicast = en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
238 					  &mlx4_en_stats->MCAST_prio_1,
239 					  NUM_PRIORITIES);
240 	stats->collisions = 0;
241 	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP) +
242 			    sw_rx_dropped;
243 	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
244 	stats->rx_over_errors = 0;
245 	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
246 	stats->rx_frame_errors = 0;
247 	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
248 	stats->rx_missed_errors = 0;
249 	stats->tx_aborted_errors = 0;
250 	stats->tx_carrier_errors = 0;
251 	stats->tx_fifo_errors = 0;
252 	stats->tx_heartbeat_errors = 0;
253 	stats->tx_window_errors = 0;
254 	stats->tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP);
255 
256 	/* RX stats */
257 	priv->pkstats.rx_multicast_packets = stats->multicast;
258 	priv->pkstats.rx_broadcast_packets =
259 			en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
260 				       &mlx4_en_stats->RBCAST_prio_1,
261 				       NUM_PRIORITIES);
262 	priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
263 	priv->pkstats.rx_in_range_length_error =
264 		be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
265 	priv->pkstats.rx_out_range_length_error =
266 		be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);
267 
268 	/* Tx stats */
269 	priv->pkstats.tx_multicast_packets =
270 		en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
271 			       &mlx4_en_stats->TMCAST_prio_1,
272 			       NUM_PRIORITIES);
273 	priv->pkstats.tx_broadcast_packets =
274 		en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
275 			       &mlx4_en_stats->TBCAST_prio_1,
276 			       NUM_PRIORITIES);
277 
278 	priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
279 	priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
280 	priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
281 	priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
282 	priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
283 	priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
284 	priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
285 	priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
286 	priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
287 	priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
288 	priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
289 	priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
290 	priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
291 	priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
292 	priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
293 	priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
294 	priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
295 	priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
296 	priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
297 	priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
298 	priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
299 	priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
300 	priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
301 	priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
302 	priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
303 	priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
304 	priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
305 	priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
306 	priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
307 	priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
308 	priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
309 	priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
310 	priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
311 	priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
312 	priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);
313 	priv->pkstats.tx_prio[8][1] = be64_to_cpu(mlx4_en_stats->TOCT_novlan);
314 
315 	spin_unlock_bh(&priv->stats_lock);
316 
317 	memset(&tmp_counter_stats, 0, sizeof(tmp_counter_stats));
318 	counter_index = mlx4_get_default_counter_index(mdev->dev, port);
319 	err = mlx4_get_counter_stats(mdev->dev, counter_index,
320 				     &tmp_counter_stats, reset);
321 
322 	/* 0xffs indicates invalid value */
323 	memset(mailbox->buf, 0xff, sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
324 
325 	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) {
326 		memset(mailbox->buf, 0,
327 		       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
328 		err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma,
329 				   in_mod | MLX4_DUMP_ETH_STATS_FLOW_CONTROL,
330 				   0, MLX4_CMD_DUMP_ETH_STATS,
331 				   MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
332 		if (err)
333 			goto out;
334 	}
335 
336 	flowstats = mailbox->buf;
337 
338 	spin_lock_bh(&priv->stats_lock);
339 
340 	if (tmp_counter_stats.counter_mode == 0) {
341 		priv->pf_stats.rx_bytes   = be64_to_cpu(tmp_counter_stats.rx_bytes);
342 		priv->pf_stats.tx_bytes   = be64_to_cpu(tmp_counter_stats.tx_bytes);
343 		priv->pf_stats.rx_packets = be64_to_cpu(tmp_counter_stats.rx_frames);
344 		priv->pf_stats.tx_packets = be64_to_cpu(tmp_counter_stats.tx_frames);
345 	}
346 
347 	for (i = 0; i < MLX4_NUM_PRIORITIES; i++)	{
348 		priv->rx_priority_flowstats[i].rx_pause =
349 			be64_to_cpu(flowstats[i].rx_pause);
350 		priv->rx_priority_flowstats[i].rx_pause_duration =
351 			be64_to_cpu(flowstats[i].rx_pause_duration);
352 		priv->rx_priority_flowstats[i].rx_pause_transition =
353 			be64_to_cpu(flowstats[i].rx_pause_transition);
354 		priv->tx_priority_flowstats[i].tx_pause =
355 			be64_to_cpu(flowstats[i].tx_pause);
356 		priv->tx_priority_flowstats[i].tx_pause_duration =
357 			be64_to_cpu(flowstats[i].tx_pause_duration);
358 		priv->tx_priority_flowstats[i].tx_pause_transition =
359 			be64_to_cpu(flowstats[i].tx_pause_transition);
360 	}
361 
362 	/* if pfc is not in use, all priorities counters have the same value */
363 	priv->rx_flowstats.rx_pause =
364 		be64_to_cpu(flowstats[0].rx_pause);
365 	priv->rx_flowstats.rx_pause_duration =
366 		be64_to_cpu(flowstats[0].rx_pause_duration);
367 	priv->rx_flowstats.rx_pause_transition =
368 		be64_to_cpu(flowstats[0].rx_pause_transition);
369 	priv->tx_flowstats.tx_pause =
370 		be64_to_cpu(flowstats[0].tx_pause);
371 	priv->tx_flowstats.tx_pause_duration =
372 		be64_to_cpu(flowstats[0].tx_pause_duration);
373 	priv->tx_flowstats.tx_pause_transition =
374 		be64_to_cpu(flowstats[0].tx_pause_transition);
375 
376 	spin_unlock_bh(&priv->stats_lock);
377 
378 out:
379 	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
380 	return err;
381 }
382 
383