1219820Sjeff/* 2219820Sjeff * Copyright (c) 2007 Mellanox Technologies. All rights reserved. 3219820Sjeff * 4219820Sjeff * This software is available to you under a choice of one of two 5219820Sjeff * licenses. You may choose to be licensed under the terms of the GNU 6219820Sjeff * General Public License (GPL) Version 2, available from the file 7219820Sjeff * COPYING in the main directory of this source tree, or the 8219820Sjeff * OpenIB.org BSD license below: 9219820Sjeff * 10219820Sjeff * Redistribution and use in source and binary forms, with or 11219820Sjeff * without modification, are permitted provided that the following 12219820Sjeff * conditions are met: 13219820Sjeff * 14219820Sjeff * - Redistributions of source code must retain the above 15219820Sjeff * copyright notice, this list of conditions and the following 16219820Sjeff * disclaimer. 17219820Sjeff * 18219820Sjeff * - Redistributions in binary form must reproduce the above 19219820Sjeff * copyright notice, this list of conditions and the following 20219820Sjeff * disclaimer in the documentation and/or other materials 21219820Sjeff * provided with the distribution. 22219820Sjeff * 23219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30219820Sjeff * SOFTWARE. 31219820Sjeff * 32219820Sjeff */ 33219820Sjeff 34219820Sjeff#include <linux/vmalloc.h> 35219820Sjeff#include <linux/mlx4/qp.h> 36219820Sjeff 37219820Sjeff#include "mlx4_en.h" 38219820Sjeff 39219820Sjeffvoid mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, 40219820Sjeff int is_tx, int rss, int qpn, int cqn, 41219820Sjeff struct mlx4_qp_context *context) 42219820Sjeff{ 43219820Sjeff struct mlx4_en_dev *mdev = priv->mdev; 44219820Sjeff 45219820Sjeff memset(context, 0, sizeof *context); 46219820Sjeff context->flags = cpu_to_be32(7 << 16 | rss << 13); 47219820Sjeff context->pd = cpu_to_be32(mdev->priv_pdn); 48219820Sjeff context->mtu_msgmax = 0xff; 49219820Sjeff if (!is_tx && !rss) { 50219820Sjeff context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4); 51219820Sjeff } 52219820Sjeff if (is_tx) 53219820Sjeff context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4); 54219820Sjeff else 55219820Sjeff context->sq_size_stride = ilog2(TXBB_SIZE) - 4; 56219820Sjeff context->usr_page = cpu_to_be32(mdev->priv_uar.index); 57219820Sjeff context->local_qpn = cpu_to_be32(qpn); 58219820Sjeff context->pri_path.ackto = 1 & 0x07; 59219820Sjeff context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6; 60219820Sjeff context->pri_path.counter_index = 0xff; 61219820Sjeff context->cqn_send = cpu_to_be32(cqn); 62219820Sjeff context->cqn_recv = cpu_to_be32(cqn); 63219820Sjeff context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2); 64219820Sjeff} 65219820Sjeff 66219820Sjeff 67219820Sjeffint mlx4_en_map_buffer(struct mlx4_buf *buf) 68219820Sjeff{ 69219820Sjeff struct page **pages; 70219820Sjeff int i; 71219820Sjeff 72219820Sjeff if (buf->direct.buf != NULL || buf->nbufs == 1) 73219820Sjeff return 0; 74219820Sjeff 75219820Sjeff pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL); 76219820Sjeff if (!pages) 77219820Sjeff return -ENOMEM; 78219820Sjeff 79219820Sjeff for (i = 0; i < buf->nbufs; ++i) 80219820Sjeff pages[i] = virt_to_page(buf->page_list[i].buf); 81219820Sjeff 82219820Sjeff buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL); 83219820Sjeff kfree(pages); 84219820Sjeff if (!buf->direct.buf) 85219820Sjeff return -ENOMEM; 86219820Sjeff 87219820Sjeff return 0; 88219820Sjeff} 89219820Sjeff 90219820Sjeffvoid mlx4_en_unmap_buffer(struct mlx4_buf *buf) 91219820Sjeff{ 92219820Sjeff if (buf->direct.buf != NULL || buf->nbufs == 1) 93219820Sjeff return; 94219820Sjeff 95219820Sjeff vunmap(buf->direct.buf); 96219820Sjeff buf->direct.buf = NULL; 97219820Sjeff} 98219820Sjeff 99219820Sjeffvoid mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event) 100219820Sjeff{ 101219820Sjeff return; 102219820Sjeff} 103219820Sjeff 104