1 /*
2  * Copyright(c) 2017 Intel Corporation.
3  *
4  * This file is provided under a dual BSD/GPLv2 license.  When using or
5  * redistributing this file, you may do so under either license.
6  *
7  * GPL LICENSE SUMMARY
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of version 2 of the GNU General Public License as
11  * published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  *
18  * BSD LICENSE
19  *
20  * Redistribution and use in source and binary forms, with or without
21  * modification, are permitted provided that the following conditions
22  * are met:
23  *
24  *  - Redistributions of source code must retain the above copyright
25  *    notice, this list of conditions and the following disclaimer.
26  *  - Redistributions in binary form must reproduce the above copyright
27  *    notice, this list of conditions and the following disclaimer in
28  *    the documentation and/or other materials provided with the
29  *    distribution.
30  *  - Neither the name of Intel Corporation nor the names of its
31  *    contributors may be used to endorse or promote products derived
32  *    from this software without specific prior written permission.
33  *
34  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
37  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
39  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
41  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
42  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
43  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
44  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45  *
46  */
47 
48 /*
49  * This file contains OPA VNIC EMA Interface functions.
50  */
51 
52 #include "opa_vnic_internal.h"
53 
54 /**
55  * opa_vnic_vema_report_event - sent trap to report the specified event
56  * @adapter: vnic port adapter
57  * @event: event to be reported
58  *
59  * This function calls vema api to sent a trap for the given event.
60  */
opa_vnic_vema_report_event(struct opa_vnic_adapter * adapter,u8 event)61 void opa_vnic_vema_report_event(struct opa_vnic_adapter *adapter, u8 event)
62 {
63 	struct __opa_veswport_info *info = &adapter->info;
64 	struct __opa_veswport_trap trap_data;
65 
66 	trap_data.fabric_id = info->vesw.fabric_id;
67 	trap_data.veswid = info->vesw.vesw_id;
68 	trap_data.veswportnum = info->vport.port_num;
69 	trap_data.opaportnum = adapter->port_num;
70 	trap_data.veswportindex = adapter->vport_num;
71 	trap_data.opcode = event;
72 
73 	opa_vnic_vema_send_trap(adapter, &trap_data, info->vport.encap_slid);
74 }
75 
76 /**
77  * opa_vnic_get_summary_counters - get summary counters
78  * @adapter: vnic port adapter
79  * @cntrs: pointer to destination summary counters structure
80  *
81  * This function populates the summary counters that is maintained by the
82  * given adapter to destination address provided.
83  */
opa_vnic_get_summary_counters(struct opa_vnic_adapter * adapter,struct opa_veswport_summary_counters * cntrs)84 void opa_vnic_get_summary_counters(struct opa_vnic_adapter *adapter,
85 				   struct opa_veswport_summary_counters *cntrs)
86 {
87 	struct opa_vnic_stats vstats;
88 	__be64 *dst;
89 	u64 *src;
90 
91 	memset(&vstats, 0, sizeof(vstats));
92 	spin_lock(&adapter->stats_lock);
93 	adapter->rn_ops->ndo_get_stats64(adapter->netdev, &vstats.netstats);
94 	spin_unlock(&adapter->stats_lock);
95 
96 	cntrs->vp_instance = cpu_to_be16(adapter->vport_num);
97 	cntrs->vesw_id = cpu_to_be16(adapter->info.vesw.vesw_id);
98 	cntrs->veswport_num = cpu_to_be32(adapter->port_num);
99 
100 	cntrs->tx_errors = cpu_to_be64(vstats.netstats.tx_errors);
101 	cntrs->rx_errors = cpu_to_be64(vstats.netstats.rx_errors);
102 	cntrs->tx_packets = cpu_to_be64(vstats.netstats.tx_packets);
103 	cntrs->rx_packets = cpu_to_be64(vstats.netstats.rx_packets);
104 	cntrs->tx_bytes = cpu_to_be64(vstats.netstats.tx_bytes);
105 	cntrs->rx_bytes = cpu_to_be64(vstats.netstats.rx_bytes);
106 
107 	/*
108 	 * This loop depends on layout of
109 	 * opa_veswport_summary_counters opa_vnic_stats structures.
110 	 */
111 	for (dst = &cntrs->tx_unicast, src = &vstats.tx_grp.unicast;
112 	     dst < &cntrs->reserved[0]; dst++, src++) {
113 		*dst = cpu_to_be64(*src);
114 	}
115 }
116 
117 /**
118  * opa_vnic_get_error_counters - get error counters
119  * @adapter: vnic port adapter
120  * @cntrs: pointer to destination error counters structure
121  *
122  * This function populates the error counters that is maintained by the
123  * given adapter to destination address provided.
124  */
opa_vnic_get_error_counters(struct opa_vnic_adapter * adapter,struct opa_veswport_error_counters * cntrs)125 void opa_vnic_get_error_counters(struct opa_vnic_adapter *adapter,
126 				 struct opa_veswport_error_counters *cntrs)
127 {
128 	struct opa_vnic_stats vstats;
129 
130 	memset(&vstats, 0, sizeof(vstats));
131 	spin_lock(&adapter->stats_lock);
132 	adapter->rn_ops->ndo_get_stats64(adapter->netdev, &vstats.netstats);
133 	spin_unlock(&adapter->stats_lock);
134 
135 	cntrs->vp_instance = cpu_to_be16(adapter->vport_num);
136 	cntrs->vesw_id = cpu_to_be16(adapter->info.vesw.vesw_id);
137 	cntrs->veswport_num = cpu_to_be32(adapter->port_num);
138 
139 	cntrs->tx_errors = cpu_to_be64(vstats.netstats.tx_errors);
140 	cntrs->rx_errors = cpu_to_be64(vstats.netstats.rx_errors);
141 	cntrs->tx_dlid_zero = cpu_to_be64(vstats.tx_dlid_zero);
142 	cntrs->tx_drop_state = cpu_to_be64(vstats.tx_drop_state);
143 	cntrs->tx_logic = cpu_to_be64(vstats.netstats.tx_fifo_errors +
144 				      vstats.netstats.tx_carrier_errors);
145 
146 	cntrs->rx_bad_veswid = cpu_to_be64(vstats.netstats.rx_nohandler);
147 	cntrs->rx_runt = cpu_to_be64(vstats.rx_runt);
148 	cntrs->rx_oversize = cpu_to_be64(vstats.rx_oversize);
149 	cntrs->rx_drop_state = cpu_to_be64(vstats.rx_drop_state);
150 	cntrs->rx_logic = cpu_to_be64(vstats.netstats.rx_fifo_errors);
151 }
152 
153 /**
154  * opa_vnic_get_vesw_info -- Get the vesw information
155  * @adapter: vnic port adapter
156  * @info: pointer to destination vesw info structure
157  *
158  * This function copies the vesw info that is maintained by the
159  * given adapter to destination address provided.
160  */
opa_vnic_get_vesw_info(struct opa_vnic_adapter * adapter,struct opa_vesw_info * info)161 void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter,
162 			    struct opa_vesw_info *info)
163 {
164 	struct __opa_vesw_info *src = &adapter->info.vesw;
165 	int i;
166 
167 	info->fabric_id = cpu_to_be16(src->fabric_id);
168 	info->vesw_id = cpu_to_be16(src->vesw_id);
169 	memcpy(info->rsvd0, src->rsvd0, ARRAY_SIZE(src->rsvd0));
170 	info->def_port_mask = cpu_to_be16(src->def_port_mask);
171 	memcpy(info->rsvd1, src->rsvd1, ARRAY_SIZE(src->rsvd1));
172 	info->pkey = cpu_to_be16(src->pkey);
173 
174 	memcpy(info->rsvd2, src->rsvd2, ARRAY_SIZE(src->rsvd2));
175 	info->u_mcast_dlid = cpu_to_be32(src->u_mcast_dlid);
176 	for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
177 		info->u_ucast_dlid[i] = cpu_to_be32(src->u_ucast_dlid[i]);
178 
179 	info->rc = cpu_to_be32(src->rc);
180 
181 	memcpy(info->rsvd3, src->rsvd3, ARRAY_SIZE(src->rsvd3));
182 	info->eth_mtu = cpu_to_be16(src->eth_mtu);
183 	memcpy(info->rsvd4, src->rsvd4, ARRAY_SIZE(src->rsvd4));
184 }
185 
186 /**
187  * opa_vnic_set_vesw_info -- Set the vesw information
188  * @adapter: vnic port adapter
189  * @info: pointer to vesw info structure
190  *
191  * This function updates the vesw info that is maintained by the
192  * given adapter with vesw info provided. Reserved fields are stored
193  * and returned back to EM as is.
194  */
opa_vnic_set_vesw_info(struct opa_vnic_adapter * adapter,struct opa_vesw_info * info)195 void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter,
196 			    struct opa_vesw_info *info)
197 {
198 	struct __opa_vesw_info *dst = &adapter->info.vesw;
199 	int i;
200 
201 	dst->fabric_id = be16_to_cpu(info->fabric_id);
202 	dst->vesw_id = be16_to_cpu(info->vesw_id);
203 	memcpy(dst->rsvd0, info->rsvd0, ARRAY_SIZE(info->rsvd0));
204 	dst->def_port_mask = be16_to_cpu(info->def_port_mask);
205 	memcpy(dst->rsvd1, info->rsvd1, ARRAY_SIZE(info->rsvd1));
206 	dst->pkey = be16_to_cpu(info->pkey);
207 
208 	memcpy(dst->rsvd2, info->rsvd2, ARRAY_SIZE(info->rsvd2));
209 	dst->u_mcast_dlid = be32_to_cpu(info->u_mcast_dlid);
210 	for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
211 		dst->u_ucast_dlid[i] = be32_to_cpu(info->u_ucast_dlid[i]);
212 
213 	dst->rc = be32_to_cpu(info->rc);
214 
215 	memcpy(dst->rsvd3, info->rsvd3, ARRAY_SIZE(info->rsvd3));
216 	dst->eth_mtu = be16_to_cpu(info->eth_mtu);
217 	memcpy(dst->rsvd4, info->rsvd4, ARRAY_SIZE(info->rsvd4));
218 }
219 
220 /**
221  * opa_vnic_get_per_veswport_info -- Get the vesw per port information
222  * @adapter: vnic port adapter
223  * @info: pointer to destination vport info structure
224  *
225  * This function copies the vesw per port info that is maintained by the
226  * given adapter to destination address provided.
227  * Note that the read only fields are not copied.
228  */
opa_vnic_get_per_veswport_info(struct opa_vnic_adapter * adapter,struct opa_per_veswport_info * info)229 void opa_vnic_get_per_veswport_info(struct opa_vnic_adapter *adapter,
230 				    struct opa_per_veswport_info *info)
231 {
232 	struct __opa_per_veswport_info *src = &adapter->info.vport;
233 
234 	info->port_num = cpu_to_be32(src->port_num);
235 	info->eth_link_status = src->eth_link_status;
236 	memcpy(info->rsvd0, src->rsvd0, ARRAY_SIZE(src->rsvd0));
237 
238 	memcpy(info->base_mac_addr, src->base_mac_addr,
239 	       ARRAY_SIZE(info->base_mac_addr));
240 	info->config_state = src->config_state;
241 	info->oper_state = src->oper_state;
242 	info->max_mac_tbl_ent = cpu_to_be16(src->max_mac_tbl_ent);
243 	info->max_smac_ent = cpu_to_be16(src->max_smac_ent);
244 	info->mac_tbl_digest = cpu_to_be32(src->mac_tbl_digest);
245 	memcpy(info->rsvd1, src->rsvd1, ARRAY_SIZE(src->rsvd1));
246 
247 	info->encap_slid = cpu_to_be32(src->encap_slid);
248 	memcpy(info->pcp_to_sc_uc, src->pcp_to_sc_uc,
249 	       ARRAY_SIZE(info->pcp_to_sc_uc));
250 	memcpy(info->pcp_to_vl_uc, src->pcp_to_vl_uc,
251 	       ARRAY_SIZE(info->pcp_to_vl_uc));
252 	memcpy(info->pcp_to_sc_mc, src->pcp_to_sc_mc,
253 	       ARRAY_SIZE(info->pcp_to_sc_mc));
254 	memcpy(info->pcp_to_vl_mc, src->pcp_to_vl_mc,
255 	       ARRAY_SIZE(info->pcp_to_vl_mc));
256 	info->non_vlan_sc_uc = src->non_vlan_sc_uc;
257 	info->non_vlan_vl_uc = src->non_vlan_vl_uc;
258 	info->non_vlan_sc_mc = src->non_vlan_sc_mc;
259 	info->non_vlan_vl_mc = src->non_vlan_vl_mc;
260 	memcpy(info->rsvd2, src->rsvd2, ARRAY_SIZE(src->rsvd2));
261 
262 	info->uc_macs_gen_count = cpu_to_be16(src->uc_macs_gen_count);
263 	info->mc_macs_gen_count = cpu_to_be16(src->mc_macs_gen_count);
264 	memcpy(info->rsvd3, src->rsvd3, ARRAY_SIZE(src->rsvd3));
265 }
266 
267 /**
268  * opa_vnic_set_per_veswport_info -- Set vesw per port information
269  * @adapter: vnic port adapter
270  * @info: pointer to vport info structure
271  *
272  * This function updates the vesw per port info that is maintained by the
273  * given adapter with vesw per port info provided. Reserved fields are
274  * stored and returned back to EM as is.
275  */
opa_vnic_set_per_veswport_info(struct opa_vnic_adapter * adapter,struct opa_per_veswport_info * info)276 void opa_vnic_set_per_veswport_info(struct opa_vnic_adapter *adapter,
277 				    struct opa_per_veswport_info *info)
278 {
279 	struct __opa_per_veswport_info *dst = &adapter->info.vport;
280 
281 	dst->port_num = be32_to_cpu(info->port_num);
282 	memcpy(dst->rsvd0, info->rsvd0, ARRAY_SIZE(info->rsvd0));
283 
284 	memcpy(dst->base_mac_addr, info->base_mac_addr,
285 	       ARRAY_SIZE(dst->base_mac_addr));
286 	dst->config_state = info->config_state;
287 	memcpy(dst->rsvd1, info->rsvd1, ARRAY_SIZE(info->rsvd1));
288 
289 	dst->encap_slid = be32_to_cpu(info->encap_slid);
290 	memcpy(dst->pcp_to_sc_uc, info->pcp_to_sc_uc,
291 	       ARRAY_SIZE(dst->pcp_to_sc_uc));
292 	memcpy(dst->pcp_to_vl_uc, info->pcp_to_vl_uc,
293 	       ARRAY_SIZE(dst->pcp_to_vl_uc));
294 	memcpy(dst->pcp_to_sc_mc, info->pcp_to_sc_mc,
295 	       ARRAY_SIZE(dst->pcp_to_sc_mc));
296 	memcpy(dst->pcp_to_vl_mc, info->pcp_to_vl_mc,
297 	       ARRAY_SIZE(dst->pcp_to_vl_mc));
298 	dst->non_vlan_sc_uc = info->non_vlan_sc_uc;
299 	dst->non_vlan_vl_uc = info->non_vlan_vl_uc;
300 	dst->non_vlan_sc_mc = info->non_vlan_sc_mc;
301 	dst->non_vlan_vl_mc = info->non_vlan_vl_mc;
302 	memcpy(dst->rsvd2, info->rsvd2, ARRAY_SIZE(info->rsvd2));
303 	memcpy(dst->rsvd3, info->rsvd3, ARRAY_SIZE(info->rsvd3));
304 }
305 
306 /**
307  * opa_vnic_query_mcast_macs - query multicast mac list
308  * @adapter: vnic port adapter
309  * @macs: pointer mac list
310  *
311  * This function populates the provided mac list with the configured
312  * multicast addresses in the adapter.
313  */
opa_vnic_query_mcast_macs(struct opa_vnic_adapter * adapter,struct opa_veswport_iface_macs * macs)314 void opa_vnic_query_mcast_macs(struct opa_vnic_adapter *adapter,
315 			       struct opa_veswport_iface_macs *macs)
316 {
317 	u16 start_idx, num_macs, idx = 0, count = 0;
318 	struct netdev_hw_addr *ha;
319 
320 	start_idx = be16_to_cpu(macs->start_idx);
321 	num_macs = be16_to_cpu(macs->num_macs_in_msg);
322 	netdev_for_each_mc_addr(ha, adapter->netdev) {
323 		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];
324 
325 		if (start_idx > idx++)
326 			continue;
327 		else if (num_macs == count)
328 			break;
329 		memcpy(entry, ha->addr, sizeof(*entry));
330 		count++;
331 	}
332 
333 	macs->tot_macs_in_lst = cpu_to_be16(netdev_mc_count(adapter->netdev));
334 	macs->num_macs_in_msg = cpu_to_be16(count);
335 	macs->gen_count = cpu_to_be16(adapter->info.vport.mc_macs_gen_count);
336 }
337 
338 /**
339  * opa_vnic_query_ucast_macs - query unicast mac list
340  * @adapter: vnic port adapter
341  * @macs: pointer mac list
342  *
343  * This function populates the provided mac list with the configured
344  * unicast addresses in the adapter.
345  */
opa_vnic_query_ucast_macs(struct opa_vnic_adapter * adapter,struct opa_veswport_iface_macs * macs)346 void opa_vnic_query_ucast_macs(struct opa_vnic_adapter *adapter,
347 			       struct opa_veswport_iface_macs *macs)
348 {
349 	u16 start_idx, tot_macs, num_macs, idx = 0, count = 0, em_macs = 0;
350 	struct netdev_hw_addr *ha;
351 
352 	start_idx = be16_to_cpu(macs->start_idx);
353 	num_macs = be16_to_cpu(macs->num_macs_in_msg);
354 	/* loop through dev_addrs list first */
355 	for_each_dev_addr(adapter->netdev, ha) {
356 		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];
357 
358 		/* Do not include EM specified MAC address */
359 		if (!memcmp(adapter->info.vport.base_mac_addr, ha->addr,
360 			    ARRAY_SIZE(adapter->info.vport.base_mac_addr))) {
361 			em_macs++;
362 			continue;
363 		}
364 
365 		if (start_idx > idx++)
366 			continue;
367 		else if (num_macs == count)
368 			break;
369 		memcpy(entry, ha->addr, sizeof(*entry));
370 		count++;
371 	}
372 
373 	/* loop through uc list */
374 	netdev_for_each_uc_addr(ha, adapter->netdev) {
375 		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];
376 
377 		if (start_idx > idx++)
378 			continue;
379 		else if (num_macs == count)
380 			break;
381 		memcpy(entry, ha->addr, sizeof(*entry));
382 		count++;
383 	}
384 
385 	tot_macs = netdev_hw_addr_list_count(&adapter->netdev->dev_addrs) +
386 		   netdev_uc_count(adapter->netdev) - em_macs;
387 	macs->tot_macs_in_lst = cpu_to_be16(tot_macs);
388 	macs->num_macs_in_msg = cpu_to_be16(count);
389 	macs->gen_count = cpu_to_be16(adapter->info.vport.uc_macs_gen_count);
390 }
391