97549c34ec
like other PCI network drivers. The sys/ofed directory is now mainly reserved for generic infiniband code, with exception of the mthca driver. - Add new manual page, mlx4en(4), describing how to configure and load mlx4en. - All relevant driver C-files are now prefixed mlx4, mlx4_en and mlx4_ib respectivly to avoid object filename collisions when compiling the kernel. This also fixes an issue with proper dependency file generation for the C-files in question. - Device mlxen is now device mlx4en and depends on device mlx4, see mlx4en(4). Only the network device name remains unchanged. - The mlx4 and mlx4en modules are now built by default on i386 and amd64 targets. Only building the mlx4ib module depends on WITH_OFED=YES . Sponsored by: Mellanox Technologies
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "mlx4_ib.h"
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#include "mlx4_exp.h"
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#include <dev/mlx4/qp.h>
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int mlx4_ib_exp_query_device(struct ib_device *ibdev,
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struct ib_exp_device_attr *props)
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{
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struct ib_device_attr *base = &props->base;
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struct mlx4_ib_dev *dev = to_mdev(ibdev);
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int ret = mlx4_ib_query_device(ibdev, &props->base);
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props->exp_comp_mask = IB_EXP_DEVICE_ATTR_INLINE_RECV_SZ;
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props->inline_recv_sz = dev->dev->caps.max_rq_sg * sizeof(struct mlx4_wqe_data_seg);
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props->device_cap_flags2 = 0;
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/* move RSS device cap from device_cap to device_cap_flags2 */
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if (base->device_cap_flags & IB_DEVICE_QPG) {
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props->device_cap_flags2 |= IB_EXP_DEVICE_QPG;
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if (base->device_cap_flags & IB_DEVICE_UD_RSS)
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props->device_cap_flags2 |= IB_EXP_DEVICE_UD_RSS;
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}
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base->device_cap_flags &= ~(IB_DEVICE_QPG |
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IB_DEVICE_UD_RSS |
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IB_DEVICE_UD_TSS);
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if (base->max_rss_tbl_sz > 0) {
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props->max_rss_tbl_sz = base->max_rss_tbl_sz;
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props->exp_comp_mask |= IB_EXP_DEVICE_ATTR_RSS_TBL_SZ;
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} else {
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props->max_rss_tbl_sz = 0;
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props->exp_comp_mask &= ~IB_EXP_DEVICE_ATTR_RSS_TBL_SZ;
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}
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if (props->device_cap_flags2)
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props->exp_comp_mask |= IB_EXP_DEVICE_ATTR_CAP_FLAGS2;
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return ret;
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}
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/*
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* Experimental functions
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*/
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struct ib_qp *mlx4_ib_exp_create_qp(struct ib_pd *pd,
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struct ib_exp_qp_init_attr *init_attr,
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struct ib_udata *udata)
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{
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int rwqe_size;
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struct ib_qp *qp;
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struct mlx4_ib_qp *mqp;
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int use_inlr;
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struct mlx4_ib_dev *dev;
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if (init_attr->max_inl_recv && !udata)
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return ERR_PTR(-EINVAL);
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use_inlr = mlx4_ib_qp_has_rq((struct ib_qp_init_attr *)init_attr) &&
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init_attr->max_inl_recv && pd;
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if (use_inlr) {
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rwqe_size = roundup_pow_of_two(max(1U, init_attr->cap.max_recv_sge)) *
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sizeof(struct mlx4_wqe_data_seg);
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if (rwqe_size < init_attr->max_inl_recv) {
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dev = to_mdev(pd->device);
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init_attr->max_inl_recv = min(init_attr->max_inl_recv,
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(u32)(dev->dev->caps.max_rq_sg *
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sizeof(struct mlx4_wqe_data_seg)));
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init_attr->cap.max_recv_sge = roundup_pow_of_two(init_attr->max_inl_recv) /
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sizeof(struct mlx4_wqe_data_seg);
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}
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} else {
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init_attr->max_inl_recv = 0;
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}
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qp = mlx4_ib_create_qp(pd, (struct ib_qp_init_attr *)init_attr, udata);
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if (IS_ERR(qp))
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return qp;
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if (use_inlr) {
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mqp = to_mqp(qp);
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mqp->max_inlr_data = 1 << mqp->rq.wqe_shift;
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init_attr->max_inl_recv = mqp->max_inlr_data;
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}
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return qp;
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}
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