Release 4.14 include/rdma/ib_hdrs.h

Directory: include/rdma
/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 17 100.00% 1 100.00%
Total 17 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Mike Marciniszyn 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 19 100.00% 1 100.00%
Total 19 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 33 100.00% 1 100.00%
Total 33 100.00% 1 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



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

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 32 100.00% 1 100.00%
Total 32 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 34 100.00% 1 100.00%
Total 34 100.00% 1 100.00%

#endif                          /* IB_HDRS_H */
Overall Contributors
Person Tokens Prop Commits CommitProp
Don Hiatt 767 62.51% 4 80.00%
Mike Marciniszyn 460 37.49% 1 20.00%
Total 1227 100.00% 5 100.00%
Directory: include/rdma

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Mike Marciniszyn	17	100.00%	1	100.00%
Total	17	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.14 include/rdma/ib_hdrs.h

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Overall Contributors
