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      1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
      2 /*
      3  * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
      4  *
      5  * This software is available to you under a choice of one of two
      6  * licenses.  You may choose to be licensed under the terms of the GNU
      7  * General Public License (GPL) Version 2, available from the file
      8  * COPYING in the main directory of this source tree, or the
      9  * OpenIB.org BSD license below:
     10  *
     11  *     Redistribution and use in source and binary forms, with or
     12  *     without modification, are permitted provided that the following
     13  *     conditions are met:
     14  *
     15  *      - Redistributions of source code must retain the above
     16  *        copyright notice, this list of conditions and the following
     17  *        disclaimer.
     18  *
     19  *      - Redistributions in binary form must reproduce the above
     20  *        copyright notice, this list of conditions and the following
     21  *        disclaimer in the documentation and/or other materials
     22  *        provided with the distribution.
     23  *
     24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     31  * SOFTWARE.
     32  */
     33 #ifndef CXGB4_ABI_USER_H
     34 #define CXGB4_ABI_USER_H
     35 
     36 #include <linux/types.h>
     37 
     38 #define C4IW_UVERBS_ABI_VERSION	3
     39 
     40 /*
     41  * Make sure that all structs defined in this file remain laid out so
     42  * that they pack the same way on 32-bit and 64-bit architectures (to
     43  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
     44  * In particular do not use pointer types -- pass pointers in __aligned_u64
     45  * instead.
     46  */
     47 
     48 enum {
     49 	C4IW_64B_CQE = (1 << 0)
     50 };
     51 
     52 struct c4iw_create_cq {
     53 	__u32 flags;
     54 	__u32 reserved;
     55 };
     56 
     57 struct c4iw_create_cq_resp {
     58 	__aligned_u64 key;
     59 	__aligned_u64 gts_key;
     60 	__aligned_u64 memsize;
     61 	__u32 cqid;
     62 	__u32 size;
     63 	__u32 qid_mask;
     64 	__u32 flags;
     65 };
     66 
     67 enum {
     68 	C4IW_QPF_ONCHIP	= (1 << 0),
     69 	C4IW_QPF_WRITE_W_IMM = (1 << 1)
     70 };
     71 
     72 struct c4iw_create_qp_resp {
     73 	__aligned_u64 ma_sync_key;
     74 	__aligned_u64 sq_key;
     75 	__aligned_u64 rq_key;
     76 	__aligned_u64 sq_db_gts_key;
     77 	__aligned_u64 rq_db_gts_key;
     78 	__aligned_u64 sq_memsize;
     79 	__aligned_u64 rq_memsize;
     80 	__u32 sqid;
     81 	__u32 rqid;
     82 	__u32 sq_size;
     83 	__u32 rq_size;
     84 	__u32 qid_mask;
     85 	__u32 flags;
     86 };
     87 
     88 struct c4iw_create_srq_resp {
     89 	__aligned_u64 srq_key;
     90 	__aligned_u64 srq_db_gts_key;
     91 	__aligned_u64 srq_memsize;
     92 	__u32 srqid;
     93 	__u32 srq_size;
     94 	__u32 rqt_abs_idx;
     95 	__u32 qid_mask;
     96 	__u32 flags;
     97 	__u32 reserved; /* explicit padding */
     98 };
     99 
    100 enum {
    101 	/* HW supports SRQ_LIMIT_REACHED event */
    102 	T4_SRQ_LIMIT_SUPPORT = 1 << 0,
    103 };
    104 
    105 struct c4iw_alloc_ucontext_resp {
    106 	__aligned_u64 status_page_key;
    107 	__u32 status_page_size;
    108 	__u32 reserved; /* explicit padding (optional for i386) */
    109 };
    110 
    111 struct c4iw_alloc_pd_resp {
    112 	__u32 pdid;
    113 };
    114 
    115 #endif /* CXGB4_ABI_USER_H */
    116