[mirror_ubuntu-bionic-kernel.git] / include / rdma / ib_hdrs.h

/*
 * Copyright(c) 2016 Intel Corporation.
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * BSD LICENSE
 *
 * 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.
 *  - Neither the name of Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef IB_HDRS_H
#define IB_HDRS_H

#include <linux/types.h>
#include <asm/unaligned.h>
#include <rdma/ib_verbs.h>

#define IB_SEQ_NAK	(3 << 29)

/* AETH NAK opcode values */
#define IB_RNR_NAK                      0x20
#define IB_NAK_PSN_ERROR                0x60
#define IB_NAK_INVALID_REQUEST          0x61
#define IB_NAK_REMOTE_ACCESS_ERROR      0x62
#define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63
#define IB_NAK_INVALID_RD_REQUEST       0x64

#define IB_BTH_REQ_ACK		BIT(31)
#define IB_BTH_SOLICITED	BIT(23)
#define IB_BTH_MIG_REQ		BIT(22)

#define IB_GRH_VERSION		6
#define IB_GRH_VERSION_MASK	0xF
#define IB_GRH_VERSION_SHIFT	28
#define IB_GRH_TCLASS_MASK	0xFF
#define IB_GRH_TCLASS_SHIFT	20
#define IB_GRH_FLOW_MASK	0xFFFFF
#define IB_GRH_FLOW_SHIFT	0
#define IB_GRH_NEXT_HDR		0x1B
#define IB_FECN_SHIFT 31
#define IB_FECN_MASK 1
#define IB_FECN_SMASK BIT(IB_FECN_SHIFT)
#define IB_BECN_SHIFT 30
#define IB_BECN_MASK 1
#define IB_BECN_SMASK BIT(IB_BECN_SHIFT)

#define IB_AETH_CREDIT_SHIFT	24
#define IB_AETH_CREDIT_MASK	0x1F
#define IB_AETH_CREDIT_INVAL	0x1F
#define IB_AETH_NAK_SHIFT	29
#define IB_MSN_MASK		0xFFFFFF

struct ib_reth {
	__be64 vaddr;        /* potentially unaligned */
	__be32 rkey;
	__be32 length;
} __packed;

struct ib_atomic_eth {
	__be64 vaddr;        /* potentially unaligned */
	__be32 rkey;
	__be64 swap_data;    /* potentially unaligned */
	__be64 compare_data; /* potentially unaligned */
} __packed;

union ib_ehdrs {
	struct {
		__be32 deth[2];
		__be32 imm_data;
	} ud;
	struct {
		struct ib_reth reth;
		__be32 imm_data;
	} rc;
	struct {
		__be32 aeth;
		__be64 atomic_ack_eth; /* potentially unaligned */
	} __packed at;
	__be32 imm_data;
	__be32 aeth;
	__be32 ieth;
	struct ib_atomic_eth atomic_eth;
}  __packed;

struct ib_other_headers {
	__be32 bth[3];
	union ib_ehdrs u;
} __packed;

struct ib_header {
	__be16 lrh[4];
	union {
		struct {
			struct ib_grh grh;
			struct ib_other_headers oth;
		} l;
		struct ib_other_headers oth;
	} u;
} __packed;

/* accessors for unaligned __be64 items */

static inline u64 ib_u64_get(__be64 *p)
{
	return get_unaligned_be64(p);
}

static inline void ib_u64_put(u64 val, __be64 *p)
{
	put_unaligned_be64(val, p);
}

static inline u64 get_ib_reth_vaddr(struct ib_reth *reth)
{
	return ib_u64_get(&reth->vaddr);
}

static inline void put_ib_reth_vaddr(u64 val, struct ib_reth *reth)
{
	ib_u64_put(val, &reth->vaddr);
}

static inline u64 get_ib_ateth_vaddr(struct ib_atomic_eth *ateth)
{
	return ib_u64_get(&ateth->vaddr);
}

static inline void put_ib_ateth_vaddr(u64 val, struct ib_atomic_eth *ateth)
{
	ib_u64_put(val, &ateth->vaddr);
}

static inline u64 get_ib_ateth_swap(struct ib_atomic_eth *ateth)
{
	return ib_u64_get(&ateth->swap_data);
}

static inline void put_ib_ateth_swap(u64 val, struct ib_atomic_eth *ateth)
{
	ib_u64_put(val, &ateth->swap_data);
}

static inline u64 get_ib_ateth_compare(struct ib_atomic_eth *ateth)
{
	return ib_u64_get(&ateth->compare_data);
}

static inline void put_ib_ateth_compare(u64 val, struct ib_atomic_eth *ateth)
{
	ib_u64_put(val, &ateth->compare_data);
}

/*
 * 9B/IB Packet Format
 */
#define IB_LNH_MASK		3
#define IB_SC_MASK		0xf
#define IB_SC_SHIFT		12
#define IB_SC5_MASK		0x10
#define IB_SL_MASK		0xf
#define IB_SL_SHIFT		4
#define IB_SL_SHIFT		4
#define IB_LVER_MASK	0xf
#define IB_LVER_SHIFT	8

static inline u8 ib_get_lnh(struct ib_header *hdr)
{
	return (be16_to_cpu(hdr->lrh[0]) & IB_LNH_MASK);
}

static inline u8 ib_get_sc(struct ib_header *hdr)
{
	return ((be16_to_cpu(hdr->lrh[0]) >> IB_SC_SHIFT) & IB_SC_MASK);
}

static inline bool ib_is_sc5(u16 sc5)
{
	return !!(sc5 & IB_SC5_MASK);
}

static inline u8 ib_get_sl(struct ib_header *hdr)
{
	return ((be16_to_cpu(hdr->lrh[0]) >> IB_SL_SHIFT) & IB_SL_MASK);
}

static inline u16 ib_get_dlid(struct ib_header *hdr)
{
	return (be16_to_cpu(hdr->lrh[1]));
}

static inline u16 ib_get_slid(struct ib_header *hdr)
{
	return (be16_to_cpu(hdr->lrh[3]));
}

static inline u8 ib_get_lver(struct ib_header *hdr)
{
	return (u8)((be16_to_cpu(hdr->lrh[0]) >> IB_LVER_SHIFT) &
		   IB_LVER_MASK);
}

static inline u16 ib_get_len(struct ib_header *hdr)
{
	return (u16)(be16_to_cpu(hdr->lrh[2]));
}

static inline u32 ib_get_qkey(struct ib_other_headers *ohdr)
{
	return be32_to_cpu(ohdr->u.ud.deth[0]);
}

static inline u32 ib_get_sqpn(struct ib_other_headers *ohdr)
{
	return ((be32_to_cpu(ohdr->u.ud.deth[1])) & IB_QPN_MASK);
}

/*
 * BTH
 */
#define IB_BTH_OPCODE_MASK	0xff
#define IB_BTH_OPCODE_SHIFT	24
#define IB_BTH_PAD_MASK	3
#define IB_BTH_PKEY_MASK	0xffff
#define IB_BTH_PAD_SHIFT	20
#define IB_BTH_A_MASK		1
#define IB_BTH_A_SHIFT		31
#define IB_BTH_M_MASK		1
#define IB_BTH_M_SHIFT		22
#define IB_BTH_SE_MASK		1
#define IB_BTH_SE_SHIFT	23
#define IB_BTH_TVER_MASK	0xf
#define IB_BTH_TVER_SHIFT	16

static inline u8 ib_bth_get_pad(struct ib_other_headers *ohdr)
{
	return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_PAD_SHIFT) &
		   IB_BTH_PAD_MASK);
}

static inline u16 ib_bth_get_pkey(struct ib_other_headers *ohdr)
{
	return (be32_to_cpu(ohdr->bth[0]) & IB_BTH_PKEY_MASK);
}

static inline u8 ib_bth_get_opcode(struct ib_other_headers *ohdr)
{
	return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_OPCODE_SHIFT) &
		   IB_BTH_OPCODE_MASK);
}

static inline u8 ib_bth_get_ackreq(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[2]) >> IB_BTH_A_SHIFT) &
		   IB_BTH_A_MASK);
}

static inline u8 ib_bth_get_migreq(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_M_SHIFT) &
		    IB_BTH_M_MASK);
}

static inline u8 ib_bth_get_se(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_SE_SHIFT) &
		    IB_BTH_SE_MASK);
}

static inline u32 ib_bth_get_psn(struct ib_other_headers *ohdr)
{
	return (u32)(be32_to_cpu(ohdr->bth[2]));
}

static inline u32 ib_bth_get_qpn(struct ib_other_headers *ohdr)
{
	return (u32)((be32_to_cpu(ohdr->bth[1])) & IB_QPN_MASK);
}

static inline u8 ib_bth_get_becn(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_BECN_SHIFT) &
		     IB_BECN_MASK);
}

static inline u8 ib_bth_get_fecn(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_FECN_SHIFT) &
		    IB_FECN_MASK);
}

static inline u8 ib_bth_get_tver(struct ib_other_headers *ohdr)
{
	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_TVER_SHIFT)  &
		    IB_BTH_TVER_MASK);
}

#endif                          /* IB_HDRS_H */
Commit	Line	Data
7368ef02 MM	1	/*
	2	* Copyright(c) 2016 Intel Corporation.
	3	*
	4	* This file is provided under a dual BSD/GPLv2 license. When using or
	5	* redistributing this file, you may do so under either license.
	6	*
	7	* GPL LICENSE SUMMARY
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of version 2 of the GNU General Public License as
	11	* published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* BSD LICENSE
	19	*
	20	* Redistribution and use in source and binary forms, with or without
	21	* modification, are permitted provided that the following conditions
	22	* are met:
	23	*
	24	* - Redistributions of source code must retain the above copyright
	25	* notice, this list of conditions and the following disclaimer.
	26	* - Redistributions in binary form must reproduce the above copyright
	27	* notice, this list of conditions and the following disclaimer in
	28	* the documentation and/or other materials provided with the
	29	* distribution.
	30	* - Neither the name of Intel Corporation nor the names of its
	31	* contributors may be used to endorse or promote products derived
	32	* from this software without specific prior written permission.
	33	*
	34	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	35	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	36	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	37	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	38	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	39	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	40	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	41	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	42	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	43	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	44	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	45	*
	46	*/
	47
	48	#ifndef IB_HDRS_H
	49	#define IB_HDRS_H
	50
	51	#include <linux/types.h>
	52	#include <asm/unaligned.h>
	53	#include <rdma/ib_verbs.h>
	54
	55	#define IB_SEQ_NAK (3 << 29)
	56
	57	/* AETH NAK opcode values */
	58	#define IB_RNR_NAK 0x20
	59	#define IB_NAK_PSN_ERROR 0x60
	60	#define IB_NAK_INVALID_REQUEST 0x61
	61	#define IB_NAK_REMOTE_ACCESS_ERROR 0x62
	62	#define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63
	63	#define IB_NAK_INVALID_RD_REQUEST 0x64
	64
65	#define IB_BTH_REQ_ACK BIT(31)
66	#define IB_BTH_SOLICITED BIT(23)
67	#define IB_BTH_MIG_REQ BIT(22)
68
69	#define IB_GRH_VERSION 6
70	#define IB_GRH_VERSION_MASK 0xF
71	#define IB_GRH_VERSION_SHIFT 28
72	#define IB_GRH_TCLASS_MASK 0xFF
73	#define IB_GRH_TCLASS_SHIFT 20
74	#define IB_GRH_FLOW_MASK 0xFFFFF
75	#define IB_GRH_FLOW_SHIFT 0
76	#define IB_GRH_NEXT_HDR 0x1B
3d591099 DH	77	#define IB_FECN_SHIFT 31
	78	#define IB_FECN_MASK 1
	79	#define IB_FECN_SMASK BIT(IB_FECN_SHIFT)
	80	#define IB_BECN_SHIFT 30
	81	#define IB_BECN_MASK 1
	82	#define IB_BECN_SMASK BIT(IB_BECN_SHIFT)
7368ef02	83
832666c1 DH	84	#define IB_AETH_CREDIT_SHIFT 24
	85	#define IB_AETH_CREDIT_MASK 0x1F
	86	#define IB_AETH_CREDIT_INVAL 0x1F
	87	#define IB_AETH_NAK_SHIFT 29
	88	#define IB_MSN_MASK 0xFFFFFF
	89
7368ef02 MM	90	struct ib_reth {
	91	__be64 vaddr; /* potentially unaligned */
	92	__be32 rkey;
	93	__be32 length;
	94	} __packed;
	95
	96	struct ib_atomic_eth {
	97	__be64 vaddr; /* potentially unaligned */
	98	__be32 rkey;
	99	__be64 swap_data; /* potentially unaligned */
	100	__be64 compare_data; /* potentially unaligned */
	101	} __packed;
	102
	103	union ib_ehdrs {
	104	struct {
	105	__be32 deth[2];
	106	__be32 imm_data;
	107	} ud;
	108	struct {
	109	struct ib_reth reth;
	110	__be32 imm_data;
	111	} rc;
	112	struct {
	113	__be32 aeth;
	114	__be64 atomic_ack_eth; /* potentially unaligned */
	115	} __packed at;
	116	__be32 imm_data;
	117	__be32 aeth;
	118	__be32 ieth;
	119	struct ib_atomic_eth atomic_eth;
	120	} __packed;
	121
	122	struct ib_other_headers {
	123	__be32 bth[3];
	124	union ib_ehdrs u;
	125	} __packed;
	126
	127	struct ib_header {
	128	__be16 lrh[4];
	129	union {
	130	struct {
	131	struct ib_grh grh;
	132	struct ib_other_headers oth;
	133	} l;
	134	struct ib_other_headers oth;
	135	} u;
	136	} __packed;
	137
	138	/* accessors for unaligned __be64 items */
	139
	140	static inline u64 ib_u64_get(__be64 *p)
	141	{
	142	return get_unaligned_be64(p);
	143	}
	144
	145	static inline void ib_u64_put(u64 val, __be64 *p)
	146	{
	147	put_unaligned_be64(val, p);
	148	}
	149
	150	static inline u64 get_ib_reth_vaddr(struct ib_reth *reth)
	151	{
	152	return ib_u64_get(&reth->vaddr);
	153	}
154
155	static inline void put_ib_reth_vaddr(u64 val, struct ib_reth *reth)
156	{
157	ib_u64_put(val, &reth->vaddr);
158	}
159
160	static inline u64 get_ib_ateth_vaddr(struct ib_atomic_eth *ateth)
161	{
162	return ib_u64_get(&ateth->vaddr);
163	}
164
165	static inline void put_ib_ateth_vaddr(u64 val, struct ib_atomic_eth *ateth)
166	{
167	ib_u64_put(val, &ateth->vaddr);
168	}
169
170	static inline u64 get_ib_ateth_swap(struct ib_atomic_eth *ateth)
171	{
172	return ib_u64_get(&ateth->swap_data);
173	}
174
175	static inline void put_ib_ateth_swap(u64 val, struct ib_atomic_eth *ateth)
176	{
177	ib_u64_put(val, &ateth->swap_data);
178	}
179
180	static inline u64 get_ib_ateth_compare(struct ib_atomic_eth *ateth)
181	{
182	return ib_u64_get(&ateth->compare_data);
183	}
184
185	static inline void put_ib_ateth_compare(u64 val, struct ib_atomic_eth *ateth)
186	{
187	ib_u64_put(val, &ateth->compare_data);
188	}
189
cb427057 DH	190	/*
	191	* 9B/IB Packet Format
	192	*/
	193	#define IB_LNH_MASK 3
	194	#define IB_SC_MASK 0xf
	195	#define IB_SC_SHIFT 12
7dafbab3	196	#define IB_SC5_MASK 0x10
cb427057 DH	197	#define IB_SL_MASK 0xf
cb427057 DH	198	#define IB_SL_SHIFT 4
7dafbab3 DH	199	#define IB_SL_SHIFT 4
	200	#define IB_LVER_MASK 0xf
	201	#define IB_LVER_SHIFT 8
cb427057 DH	202
	203	static inline u8 ib_get_lnh(struct ib_header *hdr)
	204	{
	205	return (be16_to_cpu(hdr->lrh[0]) & IB_LNH_MASK);
	206	}
	207
	208	static inline u8 ib_get_sc(struct ib_header *hdr)
	209	{
	210	return ((be16_to_cpu(hdr->lrh[0]) >> IB_SC_SHIFT) & IB_SC_MASK);
	211	}
	212
7dafbab3 DH	213	static inline bool ib_is_sc5(u16 sc5)
	214	{
	215	return !!(sc5 & IB_SC5_MASK);
	216	}
	217
cb427057 DH	218	static inline u8 ib_get_sl(struct ib_header *hdr)
	219	{
	220	return ((be16_to_cpu(hdr->lrh[0]) >> IB_SL_SHIFT) & IB_SL_MASK);
	221	}
	222
	223	static inline u16 ib_get_dlid(struct ib_header *hdr)
	224	{
	225	return (be16_to_cpu(hdr->lrh[1]));
	226	}
	227
	228	static inline u16 ib_get_slid(struct ib_header *hdr)
	229	{
	230	return (be16_to_cpu(hdr->lrh[3]));
	231	}
	232
7dafbab3 DH	233	static inline u8 ib_get_lver(struct ib_header *hdr)
	234	{
	235	return (u8)((be16_to_cpu(hdr->lrh[0]) >> IB_LVER_SHIFT) &
	236	IB_LVER_MASK);
	237	}
	238
	239	static inline u16 ib_get_len(struct ib_header *hdr)
	240	{
	241	return (u16)(be16_to_cpu(hdr->lrh[2]));
	242	}
	243
	244	static inline u32 ib_get_qkey(struct ib_other_headers *ohdr)
	245	{
	246	return be32_to_cpu(ohdr->u.ud.deth[0]);
	247	}
	248
	249	static inline u32 ib_get_sqpn(struct ib_other_headers *ohdr)
	250	{
	251	return ((be32_to_cpu(ohdr->u.ud.deth[1])) & IB_QPN_MASK);
	252	}
	253
cb427057 DH	254	/*
	255	* BTH
	256	*/
	257	#define IB_BTH_OPCODE_MASK 0xff
	258	#define IB_BTH_OPCODE_SHIFT 24
	259	#define IB_BTH_PAD_MASK 3
	260	#define IB_BTH_PKEY_MASK 0xffff
	261	#define IB_BTH_PAD_SHIFT 20
7dafbab3 DH	262	#define IB_BTH_A_MASK 1
	263	#define IB_BTH_A_SHIFT 31
	264	#define IB_BTH_M_MASK 1
	265	#define IB_BTH_M_SHIFT 22
	266	#define IB_BTH_SE_MASK 1
	267	#define IB_BTH_SE_SHIFT 23
	268	#define IB_BTH_TVER_MASK 0xf
	269	#define IB_BTH_TVER_SHIFT 16
cb427057 DH	270
	271	static inline u8 ib_bth_get_pad(struct ib_other_headers *ohdr)
	272	{
	273	return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_PAD_SHIFT) &
	274	IB_BTH_PAD_MASK);
	275	}
	276
	277	static inline u16 ib_bth_get_pkey(struct ib_other_headers *ohdr)
	278	{
	279	return (be32_to_cpu(ohdr->bth[0]) & IB_BTH_PKEY_MASK);
	280	}
	281
	282	static inline u8 ib_bth_get_opcode(struct ib_other_headers *ohdr)
	283	{
	284	return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_OPCODE_SHIFT) &
	285	IB_BTH_OPCODE_MASK);
	286	}
	287
7dafbab3 DH	288	static inline u8 ib_bth_get_ackreq(struct ib_other_headers *ohdr)
	289	{
	290	return (u8)((be32_to_cpu(ohdr->bth[2]) >> IB_BTH_A_SHIFT) &
	291	IB_BTH_A_MASK);
	292	}
	293
	294	static inline u8 ib_bth_get_migreq(struct ib_other_headers *ohdr)
	295	{
	296	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_M_SHIFT) &
	297	IB_BTH_M_MASK);
	298	}
	299
	300	static inline u8 ib_bth_get_se(struct ib_other_headers *ohdr)
	301	{
	302	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_SE_SHIFT) &
	303	IB_BTH_SE_MASK);
	304	}
	305
	306	static inline u32 ib_bth_get_psn(struct ib_other_headers *ohdr)
	307	{
	308	return (u32)(be32_to_cpu(ohdr->bth[2]));
	309	}
	310
	311	static inline u32 ib_bth_get_qpn(struct ib_other_headers *ohdr)
	312	{
	313	return (u32)((be32_to_cpu(ohdr->bth[1])) & IB_QPN_MASK);
	314	}
	315
	316	static inline u8 ib_bth_get_becn(struct ib_other_headers *ohdr)
	317	{
	318	return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_BECN_SHIFT) &
	319	IB_BECN_MASK);
	320	}
	321
	322	static inline u8 ib_bth_get_fecn(struct ib_other_headers *ohdr)
	323	{
	324	return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_FECN_SHIFT) &
	325	IB_FECN_MASK);
	326	}
	327
	328	static inline u8 ib_bth_get_tver(struct ib_other_headers *ohdr)
	329	{
	330	return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_TVER_SHIFT) &
	331	IB_BTH_TVER_MASK);
	332	}
	333
7368ef02	334	#endif /* IB_HDRS_H */