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net/smc: provide fallback reason code

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Remember the fallback reason code and the peer diagnosis code for
smc sockets, and provide them in smc_diag.c to the netlink interface.
And add more detailed reason codes.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul
2018-07-25 16:35:32 +02:00
committed by David S. Miller
parent 7005ada68d
commit 603cc14984
6 changed files with 61 additions and 29 deletions
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6
include/uapi/linux/smc_diag.h
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@@ -43,6 +43,7 @@ enum {
SMC_DIAG_LGRINFO,
SMC_DIAG_SHUTDOWN,
SMC_DIAG_DMBINFO,
SMC_DIAG_FALLBACK,
__SMC_DIAG_MAX,
};
@@ -92,6 +93,11 @@ struct smc_diag_lgrinfo {
__u8 role;
};
struct smc_diag_fallback {
__u32 reason;
__u32 peer_diagnosis;
};
struct smcd_diag_dmbinfo { /* SMC-D Socket internals */
__u32 linkid; /* Link identifier */
__u64 peer_gid; /* Peer GID */