[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / fw.c

/*
 * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed 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, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/mlx5/driver.h>
#include <linux/mlx5/cmd.h>
#include <linux/module.h>
#include "mlx5_core.h"

int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev)
{
	struct mlx5_cmd_query_adapter_mbox_out *out;
	struct mlx5_cmd_query_adapter_mbox_in in;
	int err;

	out = kzalloc(sizeof(*out), GFP_KERNEL);
	if (!out)
		return -ENOMEM;

	memset(&in, 0, sizeof(in));
	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_ADAPTER);
	err = mlx5_cmd_exec(dev, &in, sizeof(in), out, sizeof(*out));
	if (err)
		goto out_out;

	if (out->hdr.status) {
		err = mlx5_cmd_status_to_err(&out->hdr);
		goto out_out;
	}

	memcpy(dev->board_id, out->vsd_psid, sizeof(out->vsd_psid));

out_out:
	kfree(out);

	return err;
}

int mlx5_cmd_query_hca_cap(struct mlx5_core_dev *dev,
			   struct mlx5_caps *caps)
{
	struct mlx5_cmd_query_hca_cap_mbox_out *out;
	struct mlx5_cmd_query_hca_cap_mbox_in in;
	struct mlx5_query_special_ctxs_mbox_out ctx_out;
	struct mlx5_query_special_ctxs_mbox_in ctx_in;
	int err;
	u16 t16;

	out = kzalloc(sizeof(*out), GFP_KERNEL);
	if (!out)
		return -ENOMEM;

	memset(&in, 0, sizeof(in));
	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_HCA_CAP);
	in.hdr.opmod  = cpu_to_be16(0x1);
	err = mlx5_cmd_exec(dev, &in, sizeof(in), out, sizeof(*out));
	if (err)
		goto out_out;

	if (out->hdr.status) {
		err = mlx5_cmd_status_to_err(&out->hdr);
		goto out_out;
	}


	caps->log_max_eq = out->hca_cap.log_max_eq & 0xf;
	caps->max_cqes = 1 << out->hca_cap.log_max_cq_sz;
	caps->max_wqes = 1 << out->hca_cap.log_max_qp_sz;
	caps->max_sq_desc_sz = be16_to_cpu(out->hca_cap.max_desc_sz_sq);
	caps->max_rq_desc_sz = be16_to_cpu(out->hca_cap.max_desc_sz_rq);
	caps->flags = be64_to_cpu(out->hca_cap.flags);
	caps->stat_rate_support = be16_to_cpu(out->hca_cap.stat_rate_support);
	caps->log_max_msg = out->hca_cap.log_max_msg & 0x1f;
	caps->num_ports = out->hca_cap.num_ports & 0xf;
	caps->log_max_cq = out->hca_cap.log_max_cq & 0x1f;
	if (caps->num_ports > MLX5_MAX_PORTS) {
		mlx5_core_err(dev, "device has %d ports while the driver supports max %d ports\n",
			      caps->num_ports, MLX5_MAX_PORTS);
		err = -EINVAL;
		goto out_out;
	}
	caps->log_max_qp = out->hca_cap.log_max_qp & 0x1f;
	caps->log_max_mkey = out->hca_cap.log_max_mkey & 0x3f;
	caps->log_max_pd = out->hca_cap.log_max_pd & 0x1f;
	caps->log_max_srq = out->hca_cap.log_max_srqs & 0x1f;
	caps->local_ca_ack_delay = out->hca_cap.local_ca_ack_delay & 0x1f;
	caps->log_max_mcg = out->hca_cap.log_max_mcg;
	caps->max_qp_mcg = be32_to_cpu(out->hca_cap.max_qp_mcg) & 0xffffff;
	caps->max_ra_res_qp = 1 << (out->hca_cap.log_max_ra_res_qp & 0x3f);
	caps->max_ra_req_qp = 1 << (out->hca_cap.log_max_ra_req_qp & 0x3f);
	caps->max_srq_wqes = 1 << out->hca_cap.log_max_srq_sz;
	t16 = be16_to_cpu(out->hca_cap.bf_log_bf_reg_size);
	if (t16 & 0x8000) {
		caps->bf_reg_size = 1 << (t16 & 0x1f);
		caps->bf_regs_per_page = MLX5_BF_REGS_PER_PAGE;
	} else {
		caps->bf_reg_size = 0;
		caps->bf_regs_per_page = 0;
	}
	caps->min_page_sz = ~(u32)((1 << out->hca_cap.log_pg_sz) - 1);

	memset(&ctx_in, 0, sizeof(ctx_in));
	memset(&ctx_out, 0, sizeof(ctx_out));
	ctx_in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
	err = mlx5_cmd_exec(dev, &ctx_in, sizeof(ctx_in),
				 &ctx_out, sizeof(ctx_out));
	if (err)
		goto out_out;

	if (ctx_out.hdr.status)
		err = mlx5_cmd_status_to_err(&ctx_out.hdr);

	caps->reserved_lkey = be32_to_cpu(ctx_out.reserved_lkey);

out_out:
	kfree(out);

	return err;
}

int mlx5_cmd_init_hca(struct mlx5_core_dev *dev)
{
	struct mlx5_cmd_init_hca_mbox_in in;
	struct mlx5_cmd_init_hca_mbox_out out;
	int err;

	memset(&in, 0, sizeof(in));
	memset(&out, 0, sizeof(out));
	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_INIT_HCA);
	err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
	if (err)
		return err;

	if (out.hdr.status)
		err = mlx5_cmd_status_to_err(&out.hdr);

	return err;
}

int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev)
{
	struct mlx5_cmd_teardown_hca_mbox_in in;
	struct mlx5_cmd_teardown_hca_mbox_out out;
	int err;

	memset(&in, 0, sizeof(in));
	memset(&out, 0, sizeof(out));
	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA);
	err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
	if (err)
		return err;

	if (out.hdr.status)
		err = mlx5_cmd_status_to_err(&out.hdr);

	return err;
}
Commit	Line	Data
e126ba97 EC	1	/*
	2	* Copyright (c) 2013, Mellanox Technologies inc. 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	#include <linux/mlx5/driver.h>
	34	#include <linux/mlx5/cmd.h>
	35	#include <linux/module.h>
	36	#include "mlx5_core.h"
	37
	38	int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev)
	39	{
	40	struct mlx5_cmd_query_adapter_mbox_out *out;
	41	struct mlx5_cmd_query_adapter_mbox_in in;
	42	int err;
	43
	44	out = kzalloc(sizeof(*out), GFP_KERNEL);
	45	if (!out)
	46	return -ENOMEM;
	47
	48	memset(&in, 0, sizeof(in));
	49	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_ADAPTER);
	50	err = mlx5_cmd_exec(dev, &in, sizeof(in), out, sizeof(*out));
	51	if (err)
	52	goto out_out;
	53
	54	if (out->hdr.status) {
	55	err = mlx5_cmd_status_to_err(&out->hdr);
	56	goto out_out;
	57	}
	58
	59	memcpy(dev->board_id, out->vsd_psid, sizeof(out->vsd_psid));
	60
	61	out_out:
	62	kfree(out);
	63
	64	return err;
65	}
66
67	int mlx5_cmd_query_hca_cap(struct mlx5_core_dev *dev,
68	struct mlx5_caps *caps)
69	{
70	struct mlx5_cmd_query_hca_cap_mbox_out *out;
71	struct mlx5_cmd_query_hca_cap_mbox_in in;
72	struct mlx5_query_special_ctxs_mbox_out ctx_out;
73	struct mlx5_query_special_ctxs_mbox_in ctx_in;
74	int err;
75	u16 t16;
76
77	out = kzalloc(sizeof(*out), GFP_KERNEL);
78	if (!out)
79	return -ENOMEM;
80
81	memset(&in, 0, sizeof(in));
82	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_HCA_CAP);
83	in.hdr.opmod = cpu_to_be16(0x1);
84	err = mlx5_cmd_exec(dev, &in, sizeof(in), out, sizeof(*out));
85	if (err)
86	goto out_out;
87
88	if (out->hdr.status) {
89	err = mlx5_cmd_status_to_err(&out->hdr);
90	goto out_out;
91	}
92
93
94	caps->log_max_eq = out->hca_cap.log_max_eq & 0xf;
95	caps->max_cqes = 1 << out->hca_cap.log_max_cq_sz;
96	caps->max_wqes = 1 << out->hca_cap.log_max_qp_sz;
97	caps->max_sq_desc_sz = be16_to_cpu(out->hca_cap.max_desc_sz_sq);
98	caps->max_rq_desc_sz = be16_to_cpu(out->hca_cap.max_desc_sz_rq);
99	caps->flags = be64_to_cpu(out->hca_cap.flags);
100	caps->stat_rate_support = be16_to_cpu(out->hca_cap.stat_rate_support);
101	caps->log_max_msg = out->hca_cap.log_max_msg & 0x1f;
102	caps->num_ports = out->hca_cap.num_ports & 0xf;
103	caps->log_max_cq = out->hca_cap.log_max_cq & 0x1f;
104	if (caps->num_ports > MLX5_MAX_PORTS) {
105	mlx5_core_err(dev, "device has %d ports while the driver supports max %d ports\n",
106	caps->num_ports, MLX5_MAX_PORTS);
107	err = -EINVAL;
108	goto out_out;
109	}
110	caps->log_max_qp = out->hca_cap.log_max_qp & 0x1f;
111	caps->log_max_mkey = out->hca_cap.log_max_mkey & 0x3f;
112	caps->log_max_pd = out->hca_cap.log_max_pd & 0x1f;
113	caps->log_max_srq = out->hca_cap.log_max_srqs & 0x1f;
114	caps->local_ca_ack_delay = out->hca_cap.local_ca_ack_delay & 0x1f;
115	caps->log_max_mcg = out->hca_cap.log_max_mcg;
0a324f31	116	caps->max_qp_mcg = be32_to_cpu(out->hca_cap.max_qp_mcg) & 0xffffff;
e126ba97 EC	117	caps->max_ra_res_qp = 1 << (out->hca_cap.log_max_ra_res_qp & 0x3f);
	118	caps->max_ra_req_qp = 1 << (out->hca_cap.log_max_ra_req_qp & 0x3f);
	119	caps->max_srq_wqes = 1 << out->hca_cap.log_max_srq_sz;
	120	t16 = be16_to_cpu(out->hca_cap.bf_log_bf_reg_size);
	121	if (t16 & 0x8000) {
	122	caps->bf_reg_size = 1 << (t16 & 0x1f);
	123	caps->bf_regs_per_page = MLX5_BF_REGS_PER_PAGE;
	124	} else {
	125	caps->bf_reg_size = 0;
	126	caps->bf_regs_per_page = 0;
	127	}
	128	caps->min_page_sz = ~(u32)((1 << out->hca_cap.log_pg_sz) - 1);
	129
	130	memset(&ctx_in, 0, sizeof(ctx_in));
	131	memset(&ctx_out, 0, sizeof(ctx_out));
	132	ctx_in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
	133	err = mlx5_cmd_exec(dev, &ctx_in, sizeof(ctx_in),
	134	&ctx_out, sizeof(ctx_out));
	135	if (err)
	136	goto out_out;
	137
	138	if (ctx_out.hdr.status)
	139	err = mlx5_cmd_status_to_err(&ctx_out.hdr);
	140
	141	caps->reserved_lkey = be32_to_cpu(ctx_out.reserved_lkey);
	142
	143	out_out:
	144	kfree(out);
	145
	146	return err;
	147	}
	148
	149	int mlx5_cmd_init_hca(struct mlx5_core_dev *dev)
	150	{
	151	struct mlx5_cmd_init_hca_mbox_in in;
	152	struct mlx5_cmd_init_hca_mbox_out out;
	153	int err;
	154
	155	memset(&in, 0, sizeof(in));
	156	memset(&out, 0, sizeof(out));
	157	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_INIT_HCA);
	158	err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
	159	if (err)
	160	return err;
	161
	162	if (out.hdr.status)
	163	err = mlx5_cmd_status_to_err(&out.hdr);
	164
	165	return err;
	166	}
	167
	168	int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev)
	169	{
	170	struct mlx5_cmd_teardown_hca_mbox_in in;
	171	struct mlx5_cmd_teardown_hca_mbox_out out;
	172	int err;
	173
	174	memset(&in, 0, sizeof(in));
	175	memset(&out, 0, sizeof(out));
	176	in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA);
	177	err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
	178	if (err)
	179	return err;
	180
181	if (out.hdr.status)
182	err = mlx5_cmd_status_to_err(&out.hdr);
183
184	return err;
185	}