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c6d7b26791
T4 support on-chip SQs to reduce latency. This patch adds support for this in iw_cxgb4: - Manage ocqp memory like other adapter mem resources. - Allocate user mode SQs from ocqp mem if available. - Map ocqp mem to user process using write combining. - Map PCIE_MA_SYNC reg to user process. Bump uverbs ABI. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* Copyright (c) 2009-2010 Chelsio, Inc. 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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#ifndef __C4IW_USER_H__
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#define __C4IW_USER_H__
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#define C4IW_UVERBS_ABI_VERSION 1
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/*
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* Make sure that all structs defined in this file remain laid out so
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* that they pack the same way on 32-bit and 64-bit architectures (to
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* avoid incompatibility between 32-bit userspace and 64-bit kernels).
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* In particular do not use pointer types -- pass pointers in __u64
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* instead.
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*/
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struct c4iw_create_cq_resp {
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__u64 key;
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__u64 gts_key;
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__u64 memsize;
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__u32 cqid;
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__u32 size;
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__u32 qid_mask;
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};
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enum {
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C4IW_QPF_ONCHIP = (1<<0)
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};
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struct c4iw_create_qp_resp {
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__u64 ma_sync_key;
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__u64 sq_key;
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__u64 rq_key;
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__u64 sq_db_gts_key;
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__u64 rq_db_gts_key;
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__u64 sq_memsize;
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__u64 rq_memsize;
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__u32 sqid;
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__u32 rqid;
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__u32 sq_size;
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__u32 rq_size;
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__u32 qid_mask;
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__u32 flags;
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};
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#endif
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