ac7138746e
* enable smc module loading and unloading * register new socket family * basic smc socket creation and deletion * use backing TCP socket to run CLC (Connection Layer Control) handshake of SMC protocol * Setup for infiniband traffic is implemented in follow-on patches. For now fallback to TCP socket is always used. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
38 lines
775 B
C
38 lines
775 B
C
/*
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* Shared Memory Communications over RDMA (SMC-R) and RoCE
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*
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* Definitions for the SMC module (socket related)
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*
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* Copyright IBM Corp. 2016
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*
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* Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
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*/
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#ifndef __SMC_H
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#define __SMC_H
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#include <linux/socket.h>
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#include <linux/types.h>
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#include <net/sock.h>
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#define SMCPROTO_SMC 0 /* SMC protocol */
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enum smc_state { /* possible states of an SMC socket */
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SMC_ACTIVE = 1,
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SMC_INIT = 2,
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SMC_CLOSED = 7,
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SMC_LISTEN = 10,
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};
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struct smc_sock { /* smc sock container */
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struct sock sk;
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struct socket *clcsock; /* internal tcp socket */
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bool use_fallback; /* fallback to tcp */
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};
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static inline struct smc_sock *smc_sk(const struct sock *sk)
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{
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return (struct smc_sock *)sk;
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}
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#endif /* __SMC_H */
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