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| author | Guangguan Wang <guangguan.wang@linux.alibaba.com> | 2023-08-17 15:20:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-08-19 13:46:52 +0200 |
| commit | 1e700948c9db0d09f691f715e8f4b947e51e35b5 (patch) | |
| tree | 61feb04f3601a36643d76ca4a9519954127cd938 /net/smc/smc.h | |
| parent | net: freescale: Remove unused declarations (diff) | |
| download | linux-1e700948c9db0d09f691f715e8f4b947e51e35b5.tar.xz linux-1e700948c9db0d09f691f715e8f4b947e51e35b5.zip | |
net/smc: support smc release version negotiation in clc handshake
Support smc release version negotiation in clc handshake based on
SMC v2, where no negotiation process for different releases, but
for different versions. The latest smc release version was updated
to v2.1. And currently there are two release versions of SMCv2, v2.0
and v2.1. In the release version negotiation, client sends the preferred
release version by CLC Proposal Message, server makes decision for which
release version to use based on the client preferred release version and
self-supported release version (here choose the minimum release version
of the client preferred and server latest supported), then the decision
returns to client by CLC Accept Message. Client confirms the decision by
CLC Confirm Message.
Client Server
Proposal(preferred release version)
------------------------------------>
Accept(accpeted release version)
min(client preferred, server latest supported)
<------------------------------------
Confirm(accpeted release version)
------------------------------------>
Signed-off-by: Guangguan Wang <guangguan.wang@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Jan Karcher <jaka@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc.h')
| -rw-r--r-- | net/smc/smc.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/smc/smc.h b/net/smc/smc.h index 1f2b912c43d1..24745fde4ac2 100644 --- a/net/smc/smc.h +++ b/net/smc/smc.h @@ -21,7 +21,10 @@ #define SMC_V1 1 /* SMC version V1 */ #define SMC_V2 2 /* SMC version V2 */ -#define SMC_RELEASE 0 + +#define SMC_RELEASE_0 0 +#define SMC_RELEASE_1 1 +#define SMC_RELEASE SMC_RELEASE_1 /* the latest release version */ #define SMCPROTO_SMC 0 /* SMC protocol, IPv4 */ #define SMCPROTO_SMC6 1 /* SMC protocol, IPv6 */ |