mlx4_en_resources.c revision 219820
1115013Smarcel/* 2115013Smarcel * Copyright (c) 2007 Mellanox Technologies. All rights reserved. 3115013Smarcel * 4115013Smarcel * This software is available to you under a choice of one of two 5115013Smarcel * licenses. You may choose to be licensed under the terms of the GNU 6115013Smarcel * General Public License (GPL) Version 2, available from the file 7115013Smarcel * COPYING in the main directory of this source tree, or the 8115013Smarcel * OpenIB.org BSD license below: 9115013Smarcel * 10115013Smarcel * Redistribution and use in source and binary forms, with or 11120925Smarcel * without modification, are permitted provided that the following 12117392Smarcel * conditions are met: 13115013Smarcel * 14115013Smarcel * - Redistributions of source code must retain the above 15120925Smarcel * copyright notice, this list of conditions and the following 16115013Smarcel * disclaimer. 17115013Smarcel * 18160157Smarcel * - Redistributions in binary form must reproduce the above 19160157Smarcel * copyright notice, this list of conditions and the following 20115013Smarcel * disclaimer in the documentation and/or other materials 21115013Smarcel * provided with the distribution. 22160157Smarcel * 23160157Smarcel * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24115013Smarcel * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25115013Smarcel * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26115013Smarcel * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27115013Smarcel * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28115013Smarcel * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29115013Smarcel * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30115013Smarcel * SOFTWARE. 31115013Smarcel * 32115013Smarcel */ 33115013Smarcel 34115013Smarcel#include <linux/vmalloc.h> 35115013Smarcel#include <linux/mlx4/qp.h> 36115013Smarcel 37115013Smarcel#include "mlx4_en.h" 38160157Smarcel 39160157Smarcelvoid mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, 40160157Smarcel int is_tx, int rss, int qpn, int cqn, 41115013Smarcel struct mlx4_qp_context *context) 42115013Smarcel{ 43120925Smarcel struct mlx4_en_dev *mdev = priv->mdev; 44115013Smarcel 45115013Smarcel memset(context, 0, sizeof *context); 46115013Smarcel context->flags = cpu_to_be32(7 << 16 | rss << 13); 47115013Smarcel context->pd = cpu_to_be32(mdev->priv_pdn); 48115013Smarcel context->mtu_msgmax = 0xff; 49115013Smarcel if (!is_tx && !rss) { 50115013Smarcel context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4); 51115013Smarcel } 52115013Smarcel if (is_tx) 53115013Smarcel context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4); 54115013Smarcel else 55115013Smarcel context->sq_size_stride = ilog2(TXBB_SIZE) - 4; 56160157Smarcel context->usr_page = cpu_to_be32(mdev->priv_uar.index); 57160157Smarcel context->local_qpn = cpu_to_be32(qpn); 58115013Smarcel context->pri_path.ackto = 1 & 0x07; 59115013Smarcel context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6; 60115013Smarcel context->pri_path.counter_index = 0xff; 61115013Smarcel context->cqn_send = cpu_to_be32(cqn); 62115013Smarcel context->cqn_recv = cpu_to_be32(cqn); 63115013Smarcel context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2); 64115013Smarcel} 65160157Smarcel 66160157Smarcel 67115013Smarcelint mlx4_en_map_buffer(struct mlx4_buf *buf) 68115013Smarcel{ 69115013Smarcel struct page **pages; 70115013Smarcel int i; 71115013Smarcel 72 if (buf->direct.buf != NULL || 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 (buf->direct.buf != NULL || buf->nbufs == 1) 93 return; 94 95 vunmap(buf->direct.buf); 96 buf->direct.buf = NULL; 97} 98 99void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event) 100{ 101 return; 102} 103 104