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| author | Ursula Braun <ubraun@linux.ibm.com> | 2018-06-28 19:05:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-30 20:42:25 +0900 |
| commit | 0afff91c6f5ecef27715ea71e34dc2baacba1060 (patch) | |
| tree | d90ff2e8ba3cb962dd7ea451fdf7fe2a652ad516 /include/net/smc.h | |
| parent | be6a3f38ff2a2bfd2e591fdc566940a0d4d9428c (diff) | |
| download | lwn-0afff91c6f5ecef27715ea71e34dc2baacba1060.tar.gz lwn-0afff91c6f5ecef27715ea71e34dc2baacba1060.zip | |
net/smc: add pnetid support
s390 hardware supports the definition of a so-call Physical NETwork
IDentifier (short PNETID) per network device port. These PNETIDS
can be used to identify network devices that are attached to the same
physical network (broadcast domain).
On s390 try to use the PNETID of the ethernet device port used for
initial connecting, and derive the IB device port used for SMC RDMA
traffic.
On platforms without PNETID support fall back to the existing
solution of a configured pnet table.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/smc.h')
| -rw-r--r-- | include/net/smc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/smc.h b/include/net/smc.h index 8381d163fefa..2173932fab9d 100644 --- a/include/net/smc.h +++ b/include/net/smc.h @@ -11,6 +11,8 @@ #ifndef _SMC_H #define _SMC_H +#define SMC_MAX_PNETID_LEN 16 /* Max. length of PNET id */ + struct smc_hashinfo { rwlock_t lock; struct hlist_head ht; |