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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
net/smc/smc_clc.c
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@ -334,7 +334,11 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
goto out;
}
if (clcm->type == SMC_CLC_DECLINE) {
reason_code = SMC_CLC_DECL_REPLY;
struct smc_clc_msg_decline *dclc;
dclc = (struct smc_clc_msg_decline *)clcm;
reason_code = SMC_CLC_DECL_PEERDECL;
smc->peer_diagnosis = ntohl(dclc->peer_diagnosis);
if (((struct smc_clc_msg_decline *)buf)->hdr.flag) {
smc->conn.lgr->sync_err = 1;
smc_lgr_terminate(smc->conn.lgr);