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  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
 26int 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
 90static 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
106static void
107qed_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
165static void
166qed_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
219static 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
248static void
249qed_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
299int 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_sp.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_sp.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, "Unknown 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
401int 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 */
426int 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
468int 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
489int 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}