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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 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 << 13);
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 context->pri_path.counter_index = 0xff;
61 context->cqn_send = cpu_to_be32(cqn);
62 context->cqn_recv = cpu_to_be32(cqn);
63 context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
64}
65
66
67int mlx4_en_map_buffer(struct mlx4_buf *buf)
68{
69 struct page **pages;
70 int i;
71
72 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
73 return 0;
74
75 pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
76 if (!pages)
77 return -ENOMEM;
78
79 for (i = 0; i < buf->nbufs; ++i)
80 pages[i] = virt_to_page(buf->page_list[i].buf);
81
82 buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
83 kfree(pages);
84 if (!buf->direct.buf)
85 return -ENOMEM;
86
87 return 0;
88}
89
90void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
91{
92 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
93 return;
94
95 vunmap(buf->direct.buf);
96}
97
98void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
99{
100 return;
101}
102
103