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 
162 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
163 	if (IS_ERR(mailbox))
164 		return PTR_ERR(mailbox);
165 	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
166 			   MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
167 			   MLX4_CMD_WRAPPED);
168 	if (err)
169 		goto out;
170 
171 	mlx4_en_stats = mailbox->buf;
172 
173 	spin_lock_bh(&priv->stats_lock);
174 
175 	stats->rx_packets = 0;
176 	stats->rx_bytes = 0;
177 	priv->port_stats.rx_chksum_good = 0;
178 	priv->port_stats.rx_chksum_none = 0;
179 	priv->port_stats.rx_chksum_complete = 0;
180 	for (i = 0; i < priv->rx_ring_num; i++) {
181 		stats->rx_packets += priv->rx_ring[i]->packets;
182 		stats->rx_bytes += priv->rx_ring[i]->bytes;
183 		priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok;
184 		priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none;
185 		priv->port_stats.rx_chksum_complete += priv->rx_ring[i]->csum_complete;
186 	}
187 	stats->tx_packets = 0;
188 	stats->tx_bytes = 0;
189 	priv->port_stats.tx_chksum_offload = 0;
190 	priv->port_stats.queue_stopped = 0;
191 	priv->port_stats.wake_queue = 0;
192 	priv->port_stats.tso_packets = 0;
193 	priv->port_stats.xmit_more = 0;
194 
195 	for (i = 0; i < priv->tx_ring_num; i++) {
196 		const struct mlx4_en_tx_ring *ring = priv->tx_ring[i];
197 
198 		stats->tx_packets += ring->packets;
199 		stats->tx_bytes += ring->bytes;
200 		priv->port_stats.tx_chksum_offload += ring->tx_csum;
201 		priv->port_stats.queue_stopped     += ring->queue_stopped;
202 		priv->port_stats.wake_queue        += ring->wake_queue;
203 		priv->port_stats.tso_packets       += ring->tso_packets;
204 		priv->port_stats.xmit_more         += ring->xmit_more;
205 	}
206 	if (mlx4_is_master(mdev->dev)) {
207 		stats->rx_packets = en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
208 						   &mlx4_en_stats->RTOT_prio_1,
209 						   NUM_PRIORITIES);
210 		stats->tx_packets = en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
211 						   &mlx4_en_stats->TTOT_prio_1,
212 						   NUM_PRIORITIES);
213 		stats->rx_bytes = en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
214 						 &mlx4_en_stats->ROCT_prio_1,
215 						 NUM_PRIORITIES);
216 		stats->tx_bytes = en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
217 						 &mlx4_en_stats->TOCT_prio_1,
218 						 NUM_PRIORITIES);
219 	}
220 
221 	/* net device stats */
222 	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
223 			   be32_to_cpu(mlx4_en_stats->RJBBR) +
224 			   be32_to_cpu(mlx4_en_stats->RCRC) +
225 			   be32_to_cpu(mlx4_en_stats->RRUNT) +
226 			   be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
227 			   be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
228 			   be32_to_cpu(mlx4_en_stats->RSHORT) +
229 			   en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
230 					  &mlx4_en_stats->RGIANT_prio_1,
231 					  NUM_PRIORITIES);
232 	stats->tx_errors = en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
233 					  &mlx4_en_stats->TGIANT_prio_1,
234 					  NUM_PRIORITIES);
235 	stats->multicast = en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
236 					  &mlx4_en_stats->MCAST_prio_1,
237 					  NUM_PRIORITIES);
238 	stats->collisions = 0;
239 	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP);
240 	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
241 	stats->rx_over_errors = 0;
242 	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
243 	stats->rx_frame_errors = 0;
244 	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
245 	stats->rx_missed_errors = 0;
246 	stats->tx_aborted_errors = 0;
247 	stats->tx_carrier_errors = 0;
248 	stats->tx_fifo_errors = 0;
249 	stats->tx_heartbeat_errors = 0;
250 	stats->tx_window_errors = 0;
251 	stats->tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP);
252 
253 	/* RX stats */
254 	priv->pkstats.rx_multicast_packets = stats->multicast;
255 	priv->pkstats.rx_broadcast_packets =
256 			en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
257 				       &mlx4_en_stats->RBCAST_prio_1,
258 				       NUM_PRIORITIES);
259 	priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
260 	priv->pkstats.rx_in_range_length_error =
261 		be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
262 	priv->pkstats.rx_out_range_length_error =
263 		be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);
264 
265 	/* Tx stats */
266 	priv->pkstats.tx_multicast_packets =
267 		en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
268 			       &mlx4_en_stats->TMCAST_prio_1,
269 			       NUM_PRIORITIES);
270 	priv->pkstats.tx_broadcast_packets =
271 		en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
272 			       &mlx4_en_stats->TBCAST_prio_1,
273 			       NUM_PRIORITIES);
274 
275 	priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
276 	priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
277 	priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
278 	priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
279 	priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
280 	priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
281 	priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
282 	priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
283 	priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
284 	priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
285 	priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
286 	priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
287 	priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
288 	priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
289 	priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
290 	priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
291 	priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
292 	priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
293 	priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
294 	priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
295 	priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
296 	priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
297 	priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
298 	priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
299 	priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
300 	priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
301 	priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
302 	priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
303 	priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
304 	priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
305 	priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
306 	priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
307 	priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
308 	priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
309 	priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);
310 	priv->pkstats.tx_prio[8][1] = be64_to_cpu(mlx4_en_stats->TOCT_novlan);
311 
312 	spin_unlock_bh(&priv->stats_lock);
313 
314 	memset(&tmp_counter_stats, 0, sizeof(tmp_counter_stats));
315 	counter_index = mlx4_get_default_counter_index(mdev->dev, port);
316 	err = mlx4_get_counter_stats(mdev->dev, counter_index,
317 				     &tmp_counter_stats, reset);
318 
319 	/* 0xffs indicates invalid value */
320 	memset(mailbox->buf, 0xff, sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
321 
322 	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) {
323 		memset(mailbox->buf, 0,
324 		       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
325 		err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma,
326 				   in_mod | MLX4_DUMP_ETH_STATS_FLOW_CONTROL,
327 				   0, MLX4_CMD_DUMP_ETH_STATS,
328 				   MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
329 		if (err)
330 			goto out;
331 	}
332 
333 	flowstats = mailbox->buf;
334 
335 	spin_lock_bh(&priv->stats_lock);
336 
337 	if (tmp_counter_stats.counter_mode == 0) {
338 		priv->pf_stats.rx_bytes   = be64_to_cpu(tmp_counter_stats.rx_bytes);
339 		priv->pf_stats.tx_bytes   = be64_to_cpu(tmp_counter_stats.tx_bytes);
340 		priv->pf_stats.rx_packets = be64_to_cpu(tmp_counter_stats.rx_frames);
341 		priv->pf_stats.tx_packets = be64_to_cpu(tmp_counter_stats.tx_frames);
342 	}
343 
344 	for (i = 0; i < MLX4_NUM_PRIORITIES; i++)	{
345 		priv->rx_priority_flowstats[i].rx_pause =
346 			be64_to_cpu(flowstats[i].rx_pause);
347 		priv->rx_priority_flowstats[i].rx_pause_duration =
348 			be64_to_cpu(flowstats[i].rx_pause_duration);
349 		priv->rx_priority_flowstats[i].rx_pause_transition =
350 			be64_to_cpu(flowstats[i].rx_pause_transition);
351 		priv->tx_priority_flowstats[i].tx_pause =
352 			be64_to_cpu(flowstats[i].tx_pause);
353 		priv->tx_priority_flowstats[i].tx_pause_duration =
354 			be64_to_cpu(flowstats[i].tx_pause_duration);
355 		priv->tx_priority_flowstats[i].tx_pause_transition =
356 			be64_to_cpu(flowstats[i].tx_pause_transition);
357 	}
358 
359 	/* if pfc is not in use, all priorities counters have the same value */
360 	priv->rx_flowstats.rx_pause =
361 		be64_to_cpu(flowstats[0].rx_pause);
362 	priv->rx_flowstats.rx_pause_duration =
363 		be64_to_cpu(flowstats[0].rx_pause_duration);
364 	priv->rx_flowstats.rx_pause_transition =
365 		be64_to_cpu(flowstats[0].rx_pause_transition);
366 	priv->tx_flowstats.tx_pause =
367 		be64_to_cpu(flowstats[0].tx_pause);
368 	priv->tx_flowstats.tx_pause_duration =
369 		be64_to_cpu(flowstats[0].tx_pause_duration);
370 	priv->tx_flowstats.tx_pause_transition =
371 		be64_to_cpu(flowstats[0].tx_pause_transition);
372 
373 	spin_unlock_bh(&priv->stats_lock);
374 
375 out:
376 	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
377 	return err;
378 }
379 
380