forked from mirrors/linux
d25a92ccae
This patch allows to create smc socket via AF_INET, similar to the following code, /* create v4 smc sock */ v4 = socket(AF_INET, SOCK_STREAM, IPPROTO_SMC); /* create v6 smc sock */ v6 = socket(AF_INET6, SOCK_STREAM, IPPROTO_SMC); There are several reasons why we believe it is appropriate here: 1. For smc sockets, it actually use IPv4 (AF-INET) or IPv6 (AF-INET6) address. There is no AF_SMC address at all. 2. Create smc socket in the AF_INET(6) path, which allows us to reuse the infrastructure of AF_INET(6) path, such as common ebpf hooks. Otherwise, smc have to implement it again in AF_SMC path. Signed-off-by: D. Wythe <alibuda@linux.alibaba.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Dust Li <dust.li@linux.alibaba.com> Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> Tested-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
22 lines
477 B
C
22 lines
477 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared Memory Communications over RDMA (SMC-R) and RoCE
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*
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* Definitions for the IPPROTO_SMC (socket related)
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* Copyright IBM Corp. 2016
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* Copyright (c) 2024, Alibaba Inc.
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*
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* Author: D. Wythe <alibuda@linux.alibaba.com>
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*/
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#ifndef __INET_SMC
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#define __INET_SMC
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/* Initialize protocol registration on IPPROTO_SMC,
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* @return 0 on success
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*/
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int smc_inet_init(void);
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void smc_inet_exit(void);
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#endif /* __INET_SMC */
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