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1/*
2 * Copyright (c) 2007 Mellanox Technologies. 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
34#include <linux/slab.h>
35#include <linux/vmalloc.h>
36#include <linux/mlx4/qp.h>
37
38#include "mlx4_en.h"
39
40void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
41 int is_tx, int rss, int qpn, int cqn,
42 int user_prio, struct mlx4_qp_context *context)
43{
44 struct mlx4_en_dev *mdev = priv->mdev;
45
46 memset(context, 0, sizeof *context);
47 context->flags = cpu_to_be32(7 << 16 | rss << MLX4_RSS_QPC_FLAG_OFFSET);
48 context->pd = cpu_to_be32(mdev->priv_pdn);
49 context->mtu_msgmax = 0xff;
50 if (!is_tx && !rss)
51 context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
52 if (is_tx)
53 context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
54 else
55 context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
56 context->usr_page = cpu_to_be32(mdev->priv_uar.index);
57 context->local_qpn = cpu_to_be32(qpn);
58 context->pri_path.ackto = 1 & 0x07;
59 context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
60 if (user_prio >= 0) {
61 context->pri_path.sched_queue |= user_prio << 3;
62 context->pri_path.feup = 1 << 6;
63 }
64 context->pri_path.counter_index = 0xff;
65 context->cqn_send = cpu_to_be32(cqn);
66 context->cqn_recv = cpu_to_be32(cqn);
67 context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
68}
69
70
71int mlx4_en_map_buffer(struct mlx4_buf *buf)
72{
73 struct page **pages;
74 int i;
75
76 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
77 return 0;
78
79 pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
80 if (!pages)
81 return -ENOMEM;
82
83 for (i = 0; i < buf->nbufs; ++i)
84 pages[i] = virt_to_page(buf->page_list[i].buf);
85
86 buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
87 kfree(pages);
88 if (!buf->direct.buf)
89 return -ENOMEM;
90
91 return 0;
92}
93
94void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
95{
96 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
97 return;
98
99 vunmap(buf->direct.buf);
100}
101
102void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
103{
104 return;
105}
106
1/*
2 * Copyright (c) 2007 Mellanox Technologies. 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
34#include <linux/slab.h>
35#include <linux/vmalloc.h>
36#include <linux/mlx4/qp.h>
37
38#include "mlx4_en.h"
39
40void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
41 int is_tx, int rss, int qpn, int cqn,
42 int user_prio, struct mlx4_qp_context *context)
43{
44 struct mlx4_en_dev *mdev = priv->mdev;
45 struct net_device *dev = priv->dev;
46
47 memset(context, 0, sizeof(*context));
48 context->flags = cpu_to_be32(7 << 16 | rss << MLX4_RSS_QPC_FLAG_OFFSET);
49 context->pd = cpu_to_be32(mdev->priv_pdn);
50 context->mtu_msgmax = 0xff;
51 if (!is_tx && !rss)
52 context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
53 if (is_tx) {
54 context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
55 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP)
56 context->params2 |= cpu_to_be32(MLX4_QP_BIT_FPP);
57
58 } else {
59 context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
60 }
61 context->usr_page = cpu_to_be32(mlx4_to_hw_uar_index(mdev->dev,
62 mdev->priv_uar.index));
63 context->local_qpn = cpu_to_be32(qpn);
64 context->pri_path.ackto = 1 & 0x07;
65 context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
66 /* force user priority per tx ring */
67 if (user_prio >= 0 && priv->prof->num_up == MLX4_EN_NUM_UP_HIGH) {
68 context->pri_path.sched_queue |= user_prio << 3;
69 context->pri_path.feup = MLX4_FEUP_FORCE_ETH_UP;
70 }
71 context->pri_path.counter_index = priv->counter_index;
72 context->cqn_send = cpu_to_be32(cqn);
73 context->cqn_recv = cpu_to_be32(cqn);
74 if (!rss &&
75 (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_LB_SRC_CHK) &&
76 context->pri_path.counter_index !=
77 MLX4_SINK_COUNTER_INDEX(mdev->dev)) {
78 /* disable multicast loopback to qp with same counter */
79 if (!(dev->features & NETIF_F_LOOPBACK))
80 context->pri_path.fl |= MLX4_FL_ETH_SRC_CHECK_MC_LB;
81 context->pri_path.control |= MLX4_CTRL_ETH_SRC_CHECK_IF_COUNTER;
82 }
83 context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
84 if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX))
85 context->param3 |= cpu_to_be32(1 << 30);
86
87 if (!is_tx && !rss &&
88 (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)) {
89 en_dbg(HW, priv, "Setting RX qp %x tunnel mode to RX tunneled & non-tunneled\n", qpn);
90 context->srqn = cpu_to_be32(7 << 28); /* this fills bits 30:28 */
91 }
92}
93
94int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp,
95 int loopback)
96{
97 int ret;
98 struct mlx4_update_qp_params qp_params;
99
100 memset(&qp_params, 0, sizeof(qp_params));
101 if (!loopback)
102 qp_params.flags = MLX4_UPDATE_QP_PARAMS_FLAGS_ETH_CHECK_MC_LB;
103
104 ret = mlx4_update_qp(priv->mdev->dev, qp->qpn,
105 MLX4_UPDATE_QP_ETH_SRC_CHECK_MC_LB,
106 &qp_params);
107
108 return ret;
109}
110
111void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
112{
113 return;
114}
115