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authorKarsten Graul <kgraul@linux.ibm.com>2019-04-12 12:57:25 +0200
committerDavid S. Miller <davem@davemloft.net>2019-04-12 10:50:56 -0700
commit598866974c94eecb842291253780274f96b3d919 (patch)
treebc649c24343d62b99d4ffde1aa31828323fcd262 /net/smc/smc_clc.h
parent4ada81fddfbbda360bb692aa469d472ebb06b37d (diff)
net/smc: check for ip prefix and subnet
The check for a matching ip prefix and subnet was only done for SMC-R in smc_listen_rdma_check() but not when an SMC-D connection was possible. Rename the function into smc_listen_prfx_check() and move its call to a place where it is called for both SMC variants. And add a new CLC DECLINE reason for the case when the IP prefix or subnet check fails so the reason for the failing SMC connection can be found out more easily. 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>
Diffstat (limited to 'net/smc/smc_clc.h')
-rw-r--r--net/smc/smc_clc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h
index 6c94d54e7a67..f251bed2e7d5 100644
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -38,6 +38,7 @@
#define SMC_CLC_DECL_MODEUNSUPP 0x03040000 /* smc modes do not match (R or D)*/
#define SMC_CLC_DECL_RMBE_EC 0x03050000 /* peer has eyecatcher in RMBE */
#define SMC_CLC_DECL_OPTUNSUPP 0x03060000 /* fastopen sockopt not supported */
+#define SMC_CLC_DECL_DIFFPREFIX 0x03070000 /* IP prefix / subnet mismatch */
#define SMC_CLC_DECL_SYNCERR 0x04000000 /* synchronization error */
#define SMC_CLC_DECL_PEERDECL 0x05000000 /* peer declined during handshake */
#define SMC_CLC_DECL_INTERR 0x09990000 /* internal error */