5e41da7ccd
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
/*
|
|
* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "mlx4_ib.h"
|
|
#include "mlx4_exp.h"
|
|
#include <dev/mlx4/qp.h>
|
|
|
|
int mlx4_ib_exp_query_device(struct ib_device *ibdev,
|
|
struct ib_exp_device_attr *props)
|
|
{
|
|
struct ib_device_attr *base = &props->base;
|
|
struct mlx4_ib_dev *dev = to_mdev(ibdev);
|
|
int ret = mlx4_ib_query_device(ibdev, &props->base);
|
|
|
|
props->exp_comp_mask = IB_EXP_DEVICE_ATTR_INLINE_RECV_SZ;
|
|
props->inline_recv_sz = dev->dev->caps.max_rq_sg * sizeof(struct mlx4_wqe_data_seg);
|
|
props->device_cap_flags2 = 0;
|
|
|
|
/* move RSS device cap from device_cap to device_cap_flags2 */
|
|
if (base->device_cap_flags & IB_DEVICE_QPG) {
|
|
props->device_cap_flags2 |= IB_EXP_DEVICE_QPG;
|
|
if (base->device_cap_flags & IB_DEVICE_UD_RSS)
|
|
props->device_cap_flags2 |= IB_EXP_DEVICE_UD_RSS;
|
|
}
|
|
base->device_cap_flags &= ~(IB_DEVICE_QPG |
|
|
IB_DEVICE_UD_RSS |
|
|
IB_DEVICE_UD_TSS);
|
|
|
|
if (base->max_rss_tbl_sz > 0) {
|
|
props->max_rss_tbl_sz = base->max_rss_tbl_sz;
|
|
props->exp_comp_mask |= IB_EXP_DEVICE_ATTR_RSS_TBL_SZ;
|
|
} else {
|
|
props->max_rss_tbl_sz = 0;
|
|
props->exp_comp_mask &= ~IB_EXP_DEVICE_ATTR_RSS_TBL_SZ;
|
|
}
|
|
|
|
if (props->device_cap_flags2)
|
|
props->exp_comp_mask |= IB_EXP_DEVICE_ATTR_CAP_FLAGS2;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Experimental functions
|
|
*/
|
|
struct ib_qp *mlx4_ib_exp_create_qp(struct ib_pd *pd,
|
|
struct ib_exp_qp_init_attr *init_attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
int rwqe_size;
|
|
struct ib_qp *qp;
|
|
struct mlx4_ib_qp *mqp;
|
|
int use_inlr;
|
|
struct mlx4_ib_dev *dev;
|
|
|
|
if (init_attr->max_inl_recv && !udata)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
use_inlr = mlx4_ib_qp_has_rq((struct ib_qp_init_attr *)init_attr) &&
|
|
init_attr->max_inl_recv && pd;
|
|
if (use_inlr) {
|
|
rwqe_size = roundup_pow_of_two(max(1U, init_attr->cap.max_recv_sge)) *
|
|
sizeof(struct mlx4_wqe_data_seg);
|
|
if (rwqe_size < init_attr->max_inl_recv) {
|
|
dev = to_mdev(pd->device);
|
|
init_attr->max_inl_recv = min(init_attr->max_inl_recv,
|
|
(u32)(dev->dev->caps.max_rq_sg *
|
|
sizeof(struct mlx4_wqe_data_seg)));
|
|
init_attr->cap.max_recv_sge = roundup_pow_of_two(init_attr->max_inl_recv) /
|
|
sizeof(struct mlx4_wqe_data_seg);
|
|
}
|
|
} else {
|
|
init_attr->max_inl_recv = 0;
|
|
}
|
|
qp = mlx4_ib_create_qp(pd, (struct ib_qp_init_attr *)init_attr, udata);
|
|
if (IS_ERR(qp))
|
|
return qp;
|
|
|
|
if (use_inlr) {
|
|
mqp = to_mqp(qp);
|
|
mqp->max_inlr_data = 1 << mqp->rq.wqe_shift;
|
|
init_attr->max_inl_recv = mqp->max_inlr_data;
|
|
}
|
|
|
|
return qp;
|
|
}
|