[linux-2.6-block.git] / drivers / net / ethernet / qlogic / qed / qed_sp_commands.c

/* QLogic qed NIC Driver
 * Copyright (c) 2015 QLogic Corporation
 *
 * This software is available under the terms of the GNU General Public License
 * (GPL) Version 2, available from the file COPYING in the main directory of
 * this source tree.
 */

#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include "qed.h"
#include <linux/qed/qed_chain.h>
#include "qed_cxt.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_int.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"

int qed_sp_init_request(struct qed_hwfn *p_hwfn,
			struct qed_spq_entry **pp_ent,
			u32 cid,
			u16 opaque_fid,
			u8 cmd,
			u8 protocol,
			struct qed_sp_init_request_params *p_params)
{
	int rc = -EINVAL;
	struct qed_spq_entry *p_ent = NULL;
	u32 opaque_cid = opaque_fid << 16 | cid;

	if (!pp_ent)
		return -ENOMEM;

	rc = qed_spq_get_entry(p_hwfn, pp_ent);

	if (rc != 0)
		return rc;

	p_ent = *pp_ent;

	p_ent->elem.hdr.cid		= cpu_to_le32(opaque_cid);
	p_ent->elem.hdr.cmd_id		= cmd;
	p_ent->elem.hdr.protocol_id	= protocol;

	p_ent->priority		= QED_SPQ_PRIORITY_NORMAL;
	p_ent->comp_mode	= p_params->comp_mode;
	p_ent->comp_done.done	= 0;

	switch (p_ent->comp_mode) {
	case QED_SPQ_MODE_EBLOCK:
		p_ent->comp_cb.cookie = &p_ent->comp_done;
		break;

	case QED_SPQ_MODE_BLOCK:
		if (!p_params->p_comp_data)
			return -EINVAL;

		p_ent->comp_cb.cookie = p_params->p_comp_data->cookie;
		break;

	case QED_SPQ_MODE_CB:
		if (!p_params->p_comp_data)
			p_ent->comp_cb.function = NULL;
		else
			p_ent->comp_cb = *p_params->p_comp_data;
		break;

	default:
		DP_NOTICE(p_hwfn, "Unknown SPQE completion mode %d\n",
			  p_ent->comp_mode);
		return -EINVAL;
	}

	DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
		   "Initialized: CID %08x cmd %02x protocol %02x data_addr %lu comp_mode [%s]\n",
		   opaque_cid, cmd, protocol,
		   (unsigned long)&p_ent->ramrod,
		   D_TRINE(p_ent->comp_mode, QED_SPQ_MODE_EBLOCK,
			   QED_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK",
			   "MODE_CB"));
	if (p_params->ramrod_data_size)
		memset(&p_ent->ramrod, 0, p_params->ramrod_data_size);

	return 0;
}

int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
		    enum mf_mode mode)
{
	struct qed_sp_init_request_params params;
	struct pf_start_ramrod_data *p_ramrod = NULL;
	u16 sb = qed_int_get_sp_sb_id(p_hwfn);
	u8 sb_index = p_hwfn->p_eq->eq_sb_index;
	struct qed_spq_entry *p_ent = NULL;
	int rc = -EINVAL;

	/* update initial eq producer */
	qed_eq_prod_update(p_hwfn,
			   qed_chain_get_prod_idx(&p_hwfn->p_eq->chain));

	memset(&params, 0, sizeof(params));
	params.ramrod_data_size = sizeof(*p_ramrod);
	params.comp_mode = QED_SPQ_MODE_EBLOCK;

	rc = qed_sp_init_request(p_hwfn,
				 &p_ent,
				 qed_spq_get_cid(p_hwfn),
				 p_hwfn->hw_info.opaque_fid,
				 COMMON_RAMROD_PF_START,
				 PROTOCOLID_COMMON,
				 &params);
	if (rc)
		return rc;

	p_ramrod = &p_ent->ramrod.pf_start;

	p_ramrod->event_ring_sb_id	= cpu_to_le16(sb);
	p_ramrod->event_ring_sb_index	= sb_index;
	p_ramrod->path_id		= QED_PATH_ID(p_hwfn);
	p_ramrod->dont_log_ramrods	= 0;
	p_ramrod->log_type_mask		= cpu_to_le16(0xf);
	p_ramrod->mf_mode = mode;
	p_ramrod->outer_tag = p_hwfn->hw_info.ovlan;

	/* Place EQ address in RAMROD */
	p_ramrod->event_ring_pbl_addr.hi =
			DMA_HI_LE(p_hwfn->p_eq->chain.pbl.p_phys_table);
	p_ramrod->event_ring_pbl_addr.lo =
			DMA_LO_LE(p_hwfn->p_eq->chain.pbl.p_phys_table);
	p_ramrod->event_ring_num_pages = (u8)p_hwfn->p_eq->chain.page_cnt;

	p_ramrod->consolid_q_pbl_addr.hi =
			DMA_HI_LE(p_hwfn->p_consq->chain.pbl.p_phys_table);
	p_ramrod->consolid_q_pbl_addr.lo =
			DMA_LO_LE(p_hwfn->p_consq->chain.pbl.p_phys_table);

	p_hwfn->hw_info.personality = PERSONALITY_ETH;

	DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
		   "Setting event_ring_sb [id %04x index %02x], mf [%s] outer_tag [%d]\n",
		   sb, sb_index,
		   (p_ramrod->mf_mode == SF) ? "SF" : "Multi-Pf",
		   p_ramrod->outer_tag);

	return qed_spq_post(p_hwfn, p_ent, NULL);
}

int qed_sp_pf_stop(struct qed_hwfn *p_hwfn)
{
	struct qed_sp_init_request_params params;
	struct qed_spq_entry *p_ent = NULL;
	int rc = -EINVAL;

	memset(&params, 0, sizeof(params));
	params.comp_mode = QED_SPQ_MODE_EBLOCK;

	rc = qed_sp_init_request(p_hwfn, &p_ent, qed_spq_get_cid(p_hwfn),
				 p_hwfn->hw_info.opaque_fid,
				 COMMON_RAMROD_PF_STOP, PROTOCOLID_COMMON,
				 &params);
	if (rc)
		return rc;

	return qed_spq_post(p_hwfn, p_ent, NULL);
}
Commit	Line	Data
fe56b9e6 YM	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_hsi.h"
	19	#include "qed_hw.h"
	20	#include "qed_int.h"
	21	#include "qed_reg_addr.h"
	22	#include "qed_sp.h"
	23
	24	int qed_sp_init_request(struct qed_hwfn *p_hwfn,
	25	struct qed_spq_entry **pp_ent,
	26	u32 cid,
	27	u16 opaque_fid,
	28	u8 cmd,
	29	u8 protocol,
	30	struct qed_sp_init_request_params *p_params)
	31	{
	32	int rc = -EINVAL;
	33	struct qed_spq_entry *p_ent = NULL;
	34	u32 opaque_cid = opaque_fid << 16 \| cid;
	35
	36	if (!pp_ent)
	37	return -ENOMEM;
	38
	39	rc = qed_spq_get_entry(p_hwfn, pp_ent);
	40
	41	if (rc != 0)
	42	return rc;
	43
	44	p_ent = *pp_ent;
	45
	46	p_ent->elem.hdr.cid = cpu_to_le32(opaque_cid);
	47	p_ent->elem.hdr.cmd_id = cmd;
	48	p_ent->elem.hdr.protocol_id = protocol;
	49
	50	p_ent->priority = QED_SPQ_PRIORITY_NORMAL;
	51	p_ent->comp_mode = p_params->comp_mode;
	52	p_ent->comp_done.done = 0;
	53
	54	switch (p_ent->comp_mode) {
	55	case QED_SPQ_MODE_EBLOCK:
	56	p_ent->comp_cb.cookie = &p_ent->comp_done;
	57	break;
	58
	59	case QED_SPQ_MODE_BLOCK:
	60	if (!p_params->p_comp_data)
	61	return -EINVAL;
	62
	63	p_ent->comp_cb.cookie = p_params->p_comp_data->cookie;
	64	break;
65
66	case QED_SPQ_MODE_CB:
67	if (!p_params->p_comp_data)
68	p_ent->comp_cb.function = NULL;
69	else
70	p_ent->comp_cb = *p_params->p_comp_data;
71	break;
72
73	default:
74	DP_NOTICE(p_hwfn, "Unknown SPQE completion mode %d\n",
75	p_ent->comp_mode);
76	return -EINVAL;
77	}
78
79	DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
80	"Initialized: CID %08x cmd %02x protocol %02x data_addr %lu comp_mode [%s]\n",
81	opaque_cid, cmd, protocol,
82	(unsigned long)&p_ent->ramrod,
83	D_TRINE(p_ent->comp_mode, QED_SPQ_MODE_EBLOCK,
84	QED_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK",
85	"MODE_CB"));
86	if (p_params->ramrod_data_size)
87	memset(&p_ent->ramrod, 0, p_params->ramrod_data_size);
88
89	return 0;
90	}
91
92	int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
93	enum mf_mode mode)
94	{
95	struct qed_sp_init_request_params params;
96	struct pf_start_ramrod_data *p_ramrod = NULL;
97	u16 sb = qed_int_get_sp_sb_id(p_hwfn);
98	u8 sb_index = p_hwfn->p_eq->eq_sb_index;
99	struct qed_spq_entry *p_ent = NULL;
100	int rc = -EINVAL;
101
102	/* update initial eq producer */
103	qed_eq_prod_update(p_hwfn,
104	qed_chain_get_prod_idx(&p_hwfn->p_eq->chain));
105
106	memset(&params, 0, sizeof(params));
107	params.ramrod_data_size = sizeof(*p_ramrod);
108	params.comp_mode = QED_SPQ_MODE_EBLOCK;
109
110	rc = qed_sp_init_request(p_hwfn,
111	&p_ent,
112	qed_spq_get_cid(p_hwfn),
113	p_hwfn->hw_info.opaque_fid,
114	COMMON_RAMROD_PF_START,
115	PROTOCOLID_COMMON,
116	&params);
117	if (rc)
118	return rc;
119
120	p_ramrod = &p_ent->ramrod.pf_start;
121
122	p_ramrod->event_ring_sb_id = cpu_to_le16(sb);
123	p_ramrod->event_ring_sb_index = sb_index;
124	p_ramrod->path_id = QED_PATH_ID(p_hwfn);
125	p_ramrod->dont_log_ramrods = 0;
126	p_ramrod->log_type_mask = cpu_to_le16(0xf);
127	p_ramrod->mf_mode = mode;
128	p_ramrod->outer_tag = p_hwfn->hw_info.ovlan;
129
130	/* Place EQ address in RAMROD */
131	p_ramrod->event_ring_pbl_addr.hi =
132	DMA_HI_LE(p_hwfn->p_eq->chain.pbl.p_phys_table);
133	p_ramrod->event_ring_pbl_addr.lo =
134	DMA_LO_LE(p_hwfn->p_eq->chain.pbl.p_phys_table);
135	p_ramrod->event_ring_num_pages = (u8)p_hwfn->p_eq->chain.page_cnt;
136
137	p_ramrod->consolid_q_pbl_addr.hi =
138	DMA_HI_LE(p_hwfn->p_consq->chain.pbl.p_phys_table);
139	p_ramrod->consolid_q_pbl_addr.lo =
140	DMA_LO_LE(p_hwfn->p_consq->chain.pbl.p_phys_table);
141
142	p_hwfn->hw_info.personality = PERSONALITY_ETH;
143
144	DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
145	"Setting event_ring_sb [id %04x index %02x], mf [%s] outer_tag [%d]\n",
146	sb, sb_index,
147	(p_ramrod->mf_mode == SF) ? "SF" : "Multi-Pf",
148	p_ramrod->outer_tag);
149
150	return qed_spq_post(p_hwfn, p_ent, NULL);
151	}
152
153	int qed_sp_pf_stop(struct qed_hwfn *p_hwfn)
154	{
155	struct qed_sp_init_request_params params;
156	struct qed_spq_entry *p_ent = NULL;
157	int rc = -EINVAL;
158
159	memset(&params, 0, sizeof(params));
160	params.comp_mode = QED_SPQ_MODE_EBLOCK;
161
162	rc = qed_sp_init_request(p_hwfn, &p_ent, qed_spq_get_cid(p_hwfn),
163	p_hwfn->hw_info.opaque_fid,
164	COMMON_RAMROD_PF_STOP, PROTOCOLID_COMMON,
165	&params);
166	if (rc)
167	return rc;
168
169	return qed_spq_post(p_hwfn, p_ent, NULL);
170	}