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RDMA/cma: Define native IB address

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Define AF_IB and sockaddr_ib to allow the rdma_cm to use native IB
addressing.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sean Hefty 2013-05-29 10:09:07 -07:00 committed by Roland Dreier
parent fedaf4ffc2
commit 8d36eb01da
2 changed files with 91 additions and 0 deletions
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2
include/linux/socket.h
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@ -167,6 +167,7 @@ struct ucred {
#define AF_PPPOX 24 /* PPPoX sockets */
#define AF_WANPIPE 25 /* Wanpipe API Sockets */
#define AF_LLC 26 /* Linux LLC */
#define AF_IB 27 /* Native InfiniBand address */
#define AF_CAN 29 /* Controller Area Network */
#define AF_TIPC 30 /* TIPC sockets */
#define AF_BLUETOOTH 31 /* Bluetooth sockets */
@ -211,6 +212,7 @@ struct ucred {
#define PF_PPPOX AF_PPPOX
#define PF_WANPIPE AF_WANPIPE
#define PF_LLC AF_LLC
#define PF_IB AF_IB
#define PF_CAN AF_CAN
#define PF_TIPC AF_TIPC
#define PF_BLUETOOTH AF_BLUETOOTH

89
include/rdma/ib.h Normal file
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@ -0,0 +1,89 @@
/*
* Copyright (c) 2010 Intel Corporation. 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.
*/
#if !defined(_RDMA_IB_H)
#define _RDMA_IB_H
#include <linux/types.h>
struct ib_addr {
union {
__u8 uib_addr8[16];
__be16 uib_addr16[8];
__be32 uib_addr32[4];
__be64 uib_addr64[2];
} ib_u;
#define sib_addr8 ib_u.uib_addr8
#define sib_addr16 ib_u.uib_addr16
#define sib_addr32 ib_u.uib_addr32
#define sib_addr64 ib_u.uib_addr64
#define sib_raw ib_u.uib_addr8
#define sib_subnet_prefix ib_u.uib_addr64[0]
#define sib_interface_id ib_u.uib_addr64[1]
};
static inline int ib_addr_any(const struct ib_addr *a)
{
return ((a->sib_addr64[0] | a->sib_addr64[1]) == 0);
}
static inline int ib_addr_loopback(const struct ib_addr *a)
{
return ((a->sib_addr32[0] | a->sib_addr32[1] |
a->sib_addr32[2] | (a->sib_addr32[3] ^ htonl(1))) == 0);
}
static inline void ib_addr_set(struct ib_addr *addr,
__be32 w1, __be32 w2, __be32 w3, __be32 w4)
{
addr->sib_addr32[0] = w1;
addr->sib_addr32[1] = w2;
addr->sib_addr32[2] = w3;
addr->sib_addr32[3] = w4;
}
static inline int ib_addr_cmp(const struct ib_addr *a1, const struct ib_addr *a2)
{
return memcmp(a1, a2, sizeof(struct ib_addr));
}
struct sockaddr_ib {
unsigned short int sib_family; /* AF_IB */
__be16 sib_pkey;
__be32 sib_flowinfo;
struct ib_addr sib_addr;
__be64 sib_sid;
__be64 sib_sid_mask;
__u64 sib_scope_id;
};
#endif /* _RDMA_IB_H */