Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
[cascardo/linux.git] / drivers / net / ethernet / qlogic / qed / qed_sp_commands.c
1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015 QLogic Corporation
3  *
4  * This software is available under the terms of the GNU General Public License
5  * (GPL) Version 2, available from the file COPYING in the main directory of
6  * this source tree.
7  */
8
9 #include <linux/types.h>
10 #include <asm/byteorder.h>
11 #include <linux/bitops.h>
12 #include <linux/errno.h>
13 #include <linux/kernel.h>
14 #include <linux/string.h>
15 #include "qed.h"
16 #include <linux/qed/qed_chain.h>
17 #include "qed_cxt.h"
18 #include "qed_dcbx.h"
19 #include "qed_hsi.h"
20 #include "qed_hw.h"
21 #include "qed_int.h"
22 #include "qed_reg_addr.h"
23 #include "qed_sp.h"
24 #include "qed_sriov.h"
25
26 int qed_sp_init_request(struct qed_hwfn *p_hwfn,
27                         struct qed_spq_entry **pp_ent,
28                         u8 cmd, u8 protocol, struct qed_sp_init_data *p_data)
29 {
30         u32 opaque_cid = p_data->opaque_fid << 16 | p_data->cid;
31         struct qed_spq_entry *p_ent = NULL;
32         int rc;
33
34         if (!pp_ent)
35                 return -ENOMEM;
36
37         rc = qed_spq_get_entry(p_hwfn, pp_ent);
38
39         if (rc)
40                 return rc;
41
42         p_ent = *pp_ent;
43
44         p_ent->elem.hdr.cid             = cpu_to_le32(opaque_cid);
45         p_ent->elem.hdr.cmd_id          = cmd;
46         p_ent->elem.hdr.protocol_id     = protocol;
47
48         p_ent->priority         = QED_SPQ_PRIORITY_NORMAL;
49         p_ent->comp_mode        = p_data->comp_mode;
50         p_ent->comp_done.done   = 0;
51
52         switch (p_ent->comp_mode) {
53         case QED_SPQ_MODE_EBLOCK:
54                 p_ent->comp_cb.cookie = &p_ent->comp_done;
55                 break;
56
57         case QED_SPQ_MODE_BLOCK:
58                 if (!p_data->p_comp_data)
59                         return -EINVAL;
60
61                 p_ent->comp_cb.cookie = p_data->p_comp_data->cookie;
62                 break;
63
64         case QED_SPQ_MODE_CB:
65                 if (!p_data->p_comp_data)
66                         p_ent->comp_cb.function = NULL;
67                 else
68                         p_ent->comp_cb = *p_data->p_comp_data;
69                 break;
70
71         default:
72                 DP_NOTICE(p_hwfn, "Unknown SPQE completion mode %d\n",
73                           p_ent->comp_mode);
74                 return -EINVAL;
75         }
76
77         DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
78                    "Initialized: CID %08x cmd %02x protocol %02x data_addr %lu comp_mode [%s]\n",
79                    opaque_cid, cmd, protocol,
80                    (unsigned long)&p_ent->ramrod,
81                    D_TRINE(p_ent->comp_mode, QED_SPQ_MODE_EBLOCK,
82                            QED_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK",
83                            "MODE_CB"));
84
85         memset(&p_ent->ramrod, 0, sizeof(p_ent->ramrod));
86
87         return 0;
88 }
89
90 static enum tunnel_clss qed_tunn_get_clss_type(u8 type)
91 {
92         switch (type) {
93         case QED_TUNN_CLSS_MAC_VLAN:
94                 return TUNNEL_CLSS_MAC_VLAN;
95         case QED_TUNN_CLSS_MAC_VNI:
96                 return TUNNEL_CLSS_MAC_VNI;
97         case QED_TUNN_CLSS_INNER_MAC_VLAN:
98                 return TUNNEL_CLSS_INNER_MAC_VLAN;
99         case QED_TUNN_CLSS_INNER_MAC_VNI:
100                 return TUNNEL_CLSS_INNER_MAC_VNI;
101         default:
102                 return TUNNEL_CLSS_MAC_VLAN;
103         }
104 }
105
106 static void
107 qed_tunn_set_pf_fix_tunn_mode(struct qed_hwfn *p_hwfn,
108                               struct qed_tunn_update_params *p_src,
109                               struct pf_update_tunnel_config *p_tunn_cfg)
110 {
111         unsigned long cached_tunn_mode = p_hwfn->cdev->tunn_mode;
112         unsigned long update_mask = p_src->tunn_mode_update_mask;
113         unsigned long tunn_mode = p_src->tunn_mode;
114         unsigned long new_tunn_mode = 0;
115
116         if (test_bit(QED_MODE_L2GRE_TUNN, &update_mask)) {
117                 if (test_bit(QED_MODE_L2GRE_TUNN, &tunn_mode))
118                         __set_bit(QED_MODE_L2GRE_TUNN, &new_tunn_mode);
119         } else {
120                 if (test_bit(QED_MODE_L2GRE_TUNN, &cached_tunn_mode))
121                         __set_bit(QED_MODE_L2GRE_TUNN, &new_tunn_mode);
122         }
123
124         if (test_bit(QED_MODE_IPGRE_TUNN, &update_mask)) {
125                 if (test_bit(QED_MODE_IPGRE_TUNN, &tunn_mode))
126                         __set_bit(QED_MODE_IPGRE_TUNN, &new_tunn_mode);
127         } else {
128                 if (test_bit(QED_MODE_IPGRE_TUNN, &cached_tunn_mode))
129                         __set_bit(QED_MODE_IPGRE_TUNN, &new_tunn_mode);
130         }
131
132         if (test_bit(QED_MODE_VXLAN_TUNN, &update_mask)) {
133                 if (test_bit(QED_MODE_VXLAN_TUNN, &tunn_mode))
134                         __set_bit(QED_MODE_VXLAN_TUNN, &new_tunn_mode);
135         } else {
136                 if (test_bit(QED_MODE_VXLAN_TUNN, &cached_tunn_mode))
137                         __set_bit(QED_MODE_VXLAN_TUNN, &new_tunn_mode);
138         }
139
140         if (p_src->update_geneve_udp_port) {
141                 p_tunn_cfg->set_geneve_udp_port_flg = 1;
142                 p_tunn_cfg->geneve_udp_port =
143                                 cpu_to_le16(p_src->geneve_udp_port);
144         }
145
146         if (test_bit(QED_MODE_L2GENEVE_TUNN, &update_mask)) {
147                 if (test_bit(QED_MODE_L2GENEVE_TUNN, &tunn_mode))
148                         __set_bit(QED_MODE_L2GENEVE_TUNN, &new_tunn_mode);
149         } else {
150                 if (test_bit(QED_MODE_L2GENEVE_TUNN, &cached_tunn_mode))
151                         __set_bit(QED_MODE_L2GENEVE_TUNN, &new_tunn_mode);
152         }
153
154         if (test_bit(QED_MODE_IPGENEVE_TUNN, &update_mask)) {
155                 if (test_bit(QED_MODE_IPGENEVE_TUNN, &tunn_mode))
156                         __set_bit(QED_MODE_IPGENEVE_TUNN, &new_tunn_mode);
157         } else {
158                 if (test_bit(QED_MODE_IPGENEVE_TUNN, &cached_tunn_mode))
159                         __set_bit(QED_MODE_IPGENEVE_TUNN, &new_tunn_mode);
160         }
161
162         p_src->tunn_mode = new_tunn_mode;
163 }
164
165 static void
166 qed_tunn_set_pf_update_params(struct qed_hwfn *p_hwfn,
167                               struct qed_tunn_update_params *p_src,
168                               struct pf_update_tunnel_config *p_tunn_cfg)
169 {
170         unsigned long tunn_mode = p_src->tunn_mode;
171         enum tunnel_clss type;
172
173         qed_tunn_set_pf_fix_tunn_mode(p_hwfn, p_src, p_tunn_cfg);
174         p_tunn_cfg->update_rx_pf_clss = p_src->update_rx_pf_clss;
175         p_tunn_cfg->update_tx_pf_clss = p_src->update_tx_pf_clss;
176
177         type = qed_tunn_get_clss_type(p_src->tunn_clss_vxlan);
178         p_tunn_cfg->tunnel_clss_vxlan  = type;
179
180         type = qed_tunn_get_clss_type(p_src->tunn_clss_l2gre);
181         p_tunn_cfg->tunnel_clss_l2gre = type;
182
183         type = qed_tunn_get_clss_type(p_src->tunn_clss_ipgre);
184         p_tunn_cfg->tunnel_clss_ipgre = type;
185
186         if (p_src->update_vxlan_udp_port) {
187                 p_tunn_cfg->set_vxlan_udp_port_flg = 1;
188                 p_tunn_cfg->vxlan_udp_port = cpu_to_le16(p_src->vxlan_udp_port);
189         }
190
191         if (test_bit(QED_MODE_L2GRE_TUNN, &tunn_mode))
192                 p_tunn_cfg->tx_enable_l2gre = 1;
193
194         if (test_bit(QED_MODE_IPGRE_TUNN, &tunn_mode))
195                 p_tunn_cfg->tx_enable_ipgre = 1;
196
197         if (test_bit(QED_MODE_VXLAN_TUNN, &tunn_mode))
198                 p_tunn_cfg->tx_enable_vxlan = 1;
199
200         if (p_src->update_geneve_udp_port) {
201                 p_tunn_cfg->set_geneve_udp_port_flg = 1;
202                 p_tunn_cfg->geneve_udp_port =
203                                 cpu_to_le16(p_src->geneve_udp_port);
204         }
205
206         if (test_bit(QED_MODE_L2GENEVE_TUNN, &tunn_mode))
207                 p_tunn_cfg->tx_enable_l2geneve = 1;
208
209         if (test_bit(QED_MODE_IPGENEVE_TUNN, &tunn_mode))
210                 p_tunn_cfg->tx_enable_ipgeneve = 1;
211
212         type = qed_tunn_get_clss_type(p_src->tunn_clss_l2geneve);
213         p_tunn_cfg->tunnel_clss_l2geneve = type;
214
215         type = qed_tunn_get_clss_type(p_src->tunn_clss_ipgeneve);
216         p_tunn_cfg->tunnel_clss_ipgeneve = type;
217 }
218
219 static void qed_set_hw_tunn_mode(struct qed_hwfn *p_hwfn,
220                                  struct qed_ptt *p_ptt,
221                                  unsigned long tunn_mode)
222 {
223         u8 l2gre_enable = 0, ipgre_enable = 0, vxlan_enable = 0;
224         u8 l2geneve_enable = 0, ipgeneve_enable = 0;
225
226         if (test_bit(QED_MODE_L2GRE_TUNN, &tunn_mode))
227                 l2gre_enable = 1;
228
229         if (test_bit(QED_MODE_IPGRE_TUNN, &tunn_mode))
230                 ipgre_enable = 1;
231
232         if (test_bit(QED_MODE_VXLAN_TUNN, &tunn_mode))
233                 vxlan_enable = 1;
234
235         qed_set_gre_enable(p_hwfn, p_ptt, l2gre_enable, ipgre_enable);
236         qed_set_vxlan_enable(p_hwfn, p_ptt, vxlan_enable);
237
238         if (test_bit(QED_MODE_L2GENEVE_TUNN, &tunn_mode))
239                 l2geneve_enable = 1;
240
241         if (test_bit(QED_MODE_IPGENEVE_TUNN, &tunn_mode))
242                 ipgeneve_enable = 1;
243
244         qed_set_geneve_enable(p_hwfn, p_ptt, l2geneve_enable,
245                               ipgeneve_enable);
246 }
247
248 static void
249 qed_tunn_set_pf_start_params(struct qed_hwfn *p_hwfn,
250                              struct qed_tunn_start_params *p_src,
251                              struct pf_start_tunnel_config *p_tunn_cfg)
252 {
253         unsigned long tunn_mode;
254         enum tunnel_clss type;
255
256         if (!p_src)
257                 return;
258
259         tunn_mode = p_src->tunn_mode;
260         type = qed_tunn_get_clss_type(p_src->tunn_clss_vxlan);
261         p_tunn_cfg->tunnel_clss_vxlan = type;
262         type = qed_tunn_get_clss_type(p_src->tunn_clss_l2gre);
263         p_tunn_cfg->tunnel_clss_l2gre = type;
264         type = qed_tunn_get_clss_type(p_src->tunn_clss_ipgre);
265         p_tunn_cfg->tunnel_clss_ipgre = type;
266
267         if (p_src->update_vxlan_udp_port) {
268                 p_tunn_cfg->set_vxlan_udp_port_flg = 1;
269                 p_tunn_cfg->vxlan_udp_port = cpu_to_le16(p_src->vxlan_udp_port);
270         }
271
272         if (test_bit(QED_MODE_L2GRE_TUNN, &tunn_mode))
273                 p_tunn_cfg->tx_enable_l2gre = 1;
274
275         if (test_bit(QED_MODE_IPGRE_TUNN, &tunn_mode))
276                 p_tunn_cfg->tx_enable_ipgre = 1;
277
278         if (test_bit(QED_MODE_VXLAN_TUNN, &tunn_mode))
279                 p_tunn_cfg->tx_enable_vxlan = 1;
280
281         if (p_src->update_geneve_udp_port) {
282                 p_tunn_cfg->set_geneve_udp_port_flg = 1;
283                 p_tunn_cfg->geneve_udp_port =
284                                 cpu_to_le16(p_src->geneve_udp_port);
285         }
286
287         if (test_bit(QED_MODE_L2GENEVE_TUNN, &tunn_mode))
288                 p_tunn_cfg->tx_enable_l2geneve = 1;
289
290         if (test_bit(QED_MODE_IPGENEVE_TUNN, &tunn_mode))
291                 p_tunn_cfg->tx_enable_ipgeneve = 1;
292
293         type = qed_tunn_get_clss_type(p_src->tunn_clss_l2geneve);
294         p_tunn_cfg->tunnel_clss_l2geneve = type;
295         type = qed_tunn_get_clss_type(p_src->tunn_clss_ipgeneve);
296         p_tunn_cfg->tunnel_clss_ipgeneve = type;
297 }
298
299 int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
300                     struct qed_tunn_start_params *p_tunn,
301                     enum qed_mf_mode mode, bool allow_npar_tx_switch)
302 {
303         struct pf_start_ramrod_data *p_ramrod = NULL;
304         u16 sb = qed_int_get_sp_sb_id(p_hwfn);
305         u8 sb_index = p_hwfn->p_eq->eq_sb_index;
306         struct qed_spq_entry *p_ent = NULL;
307         struct qed_sp_init_data init_data;
308         int rc = -EINVAL;
309         u8 page_cnt;
310
311         /* update initial eq producer */
312         qed_eq_prod_update(p_hwfn,
313                            qed_chain_get_prod_idx(&p_hwfn->p_eq->chain));
314
315         memset(&init_data, 0, sizeof(init_data));
316         init_data.cid = qed_spq_get_cid(p_hwfn);
317         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
318         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
319
320         rc = qed_sp_init_request(p_hwfn, &p_ent,
321                                  COMMON_RAMROD_PF_START,
322                                  PROTOCOLID_COMMON, &init_data);
323         if (rc)
324                 return rc;
325
326         p_ramrod = &p_ent->ramrod.pf_start;
327
328         p_ramrod->event_ring_sb_id      = cpu_to_le16(sb);
329         p_ramrod->event_ring_sb_index   = sb_index;
330         p_ramrod->path_id               = QED_PATH_ID(p_hwfn);
331         p_ramrod->dont_log_ramrods      = 0;
332         p_ramrod->log_type_mask         = cpu_to_le16(0xf);
333
334         switch (mode) {
335         case QED_MF_DEFAULT:
336         case QED_MF_NPAR:
337                 p_ramrod->mf_mode = MF_NPAR;
338                 break;
339         case QED_MF_OVLAN:
340                 p_ramrod->mf_mode = MF_OVLAN;
341                 break;
342         default:
343                 DP_NOTICE(p_hwfn, "Unsupported MF mode, init as DEFAULT\n");
344                 p_ramrod->mf_mode = MF_NPAR;
345         }
346         p_ramrod->outer_tag = p_hwfn->hw_info.ovlan;
347
348         /* Place EQ address in RAMROD */
349         DMA_REGPAIR_LE(p_ramrod->event_ring_pbl_addr,
350                        p_hwfn->p_eq->chain.pbl.p_phys_table);
351         page_cnt = (u8)qed_chain_get_page_cnt(&p_hwfn->p_eq->chain);
352         p_ramrod->event_ring_num_pages = page_cnt;
353         DMA_REGPAIR_LE(p_ramrod->consolid_q_pbl_addr,
354                        p_hwfn->p_consq->chain.pbl.p_phys_table);
355
356         qed_tunn_set_pf_start_params(p_hwfn, p_tunn, &p_ramrod->tunnel_config);
357
358         if (IS_MF_SI(p_hwfn))
359                 p_ramrod->allow_npar_tx_switching = allow_npar_tx_switch;
360
361         switch (p_hwfn->hw_info.personality) {
362         case QED_PCI_ETH:
363                 p_ramrod->personality = PERSONALITY_ETH;
364                 break;
365         case QED_PCI_ISCSI:
366                 p_ramrod->personality = PERSONALITY_ISCSI;
367                 break;
368         case QED_PCI_ETH_ROCE:
369                 p_ramrod->personality = PERSONALITY_RDMA_AND_ETH;
370                 break;
371         default:
372                 DP_NOTICE(p_hwfn, "Unkown personality %d\n",
373                           p_hwfn->hw_info.personality);
374                 p_ramrod->personality = PERSONALITY_ETH;
375         }
376
377         if (p_hwfn->cdev->p_iov_info) {
378                 struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
379
380                 p_ramrod->base_vf_id = (u8) p_iov->first_vf_in_pf;
381                 p_ramrod->num_vfs = (u8) p_iov->total_vfs;
382         }
383         p_ramrod->hsi_fp_ver.major_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MAJOR;
384         p_ramrod->hsi_fp_ver.minor_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MINOR;
385
386         DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
387                    "Setting event_ring_sb [id %04x index %02x], outer_tag [%d]\n",
388                    sb, sb_index, p_ramrod->outer_tag);
389
390         rc = qed_spq_post(p_hwfn, p_ent, NULL);
391
392         if (p_tunn) {
393                 qed_set_hw_tunn_mode(p_hwfn, p_hwfn->p_main_ptt,
394                                      p_tunn->tunn_mode);
395                 p_hwfn->cdev->tunn_mode = p_tunn->tunn_mode;
396         }
397
398         return rc;
399 }
400
401 int qed_sp_pf_update(struct qed_hwfn *p_hwfn)
402 {
403         struct qed_spq_entry *p_ent = NULL;
404         struct qed_sp_init_data init_data;
405         int rc = -EINVAL;
406
407         /* Get SPQ entry */
408         memset(&init_data, 0, sizeof(init_data));
409         init_data.cid = qed_spq_get_cid(p_hwfn);
410         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
411         init_data.comp_mode = QED_SPQ_MODE_CB;
412
413         rc = qed_sp_init_request(p_hwfn, &p_ent,
414                                  COMMON_RAMROD_PF_UPDATE, PROTOCOLID_COMMON,
415                                  &init_data);
416         if (rc)
417                 return rc;
418
419         qed_dcbx_set_pf_update_params(&p_hwfn->p_dcbx_info->results,
420                                       &p_ent->ramrod.pf_update);
421
422         return qed_spq_post(p_hwfn, p_ent, NULL);
423 }
424
425 /* Set pf update ramrod command params */
426 int qed_sp_pf_update_tunn_cfg(struct qed_hwfn *p_hwfn,
427                               struct qed_tunn_update_params *p_tunn,
428                               enum spq_mode comp_mode,
429                               struct qed_spq_comp_cb *p_comp_data)
430 {
431         struct qed_spq_entry *p_ent = NULL;
432         struct qed_sp_init_data init_data;
433         int rc = -EINVAL;
434
435         /* Get SPQ entry */
436         memset(&init_data, 0, sizeof(init_data));
437         init_data.cid = qed_spq_get_cid(p_hwfn);
438         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
439         init_data.comp_mode = comp_mode;
440         init_data.p_comp_data = p_comp_data;
441
442         rc = qed_sp_init_request(p_hwfn, &p_ent,
443                                  COMMON_RAMROD_PF_UPDATE, PROTOCOLID_COMMON,
444                                  &init_data);
445         if (rc)
446                 return rc;
447
448         qed_tunn_set_pf_update_params(p_hwfn, p_tunn,
449                                       &p_ent->ramrod.pf_update.tunnel_config);
450
451         rc = qed_spq_post(p_hwfn, p_ent, NULL);
452         if (rc)
453                 return rc;
454
455         if (p_tunn->update_vxlan_udp_port)
456                 qed_set_vxlan_dest_port(p_hwfn, p_hwfn->p_main_ptt,
457                                         p_tunn->vxlan_udp_port);
458         if (p_tunn->update_geneve_udp_port)
459                 qed_set_geneve_dest_port(p_hwfn, p_hwfn->p_main_ptt,
460                                          p_tunn->geneve_udp_port);
461
462         qed_set_hw_tunn_mode(p_hwfn, p_hwfn->p_main_ptt, p_tunn->tunn_mode);
463         p_hwfn->cdev->tunn_mode = p_tunn->tunn_mode;
464
465         return rc;
466 }
467
468 int qed_sp_pf_stop(struct qed_hwfn *p_hwfn)
469 {
470         struct qed_spq_entry *p_ent = NULL;
471         struct qed_sp_init_data init_data;
472         int rc = -EINVAL;
473
474         /* Get SPQ entry */
475         memset(&init_data, 0, sizeof(init_data));
476         init_data.cid = qed_spq_get_cid(p_hwfn);
477         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
478         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
479
480         rc = qed_sp_init_request(p_hwfn, &p_ent,
481                                  COMMON_RAMROD_PF_STOP, PROTOCOLID_COMMON,
482                                  &init_data);
483         if (rc)
484                 return rc;
485
486         return qed_spq_post(p_hwfn, p_ent, NULL);
487 }
488
489 int qed_sp_heartbeat_ramrod(struct qed_hwfn *p_hwfn)
490 {
491         struct qed_spq_entry *p_ent = NULL;
492         struct qed_sp_init_data init_data;
493         int rc;
494
495         /* Get SPQ entry */
496         memset(&init_data, 0, sizeof(init_data));
497         init_data.cid = qed_spq_get_cid(p_hwfn);
498         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
499         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
500
501         rc = qed_sp_init_request(p_hwfn, &p_ent,
502                                  COMMON_RAMROD_EMPTY, PROTOCOLID_COMMON,
503                                  &init_data);
504         if (rc)
505                 return rc;
506
507         return qed_spq_post(p_hwfn, p_ent, NULL);
508 }