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net/smc: return active RoCE port only 

SMC requires an active ib port on the RoCE device.
smc_pnet_find_roce_resource() determines the matching RoCE device port
according to the configured PNET table. Do not return the found
RoCE device port, if it is not flagged active.

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun 2017-04-10 14:57:58 +02:00 committed by David S. Miller
parent 249633a443
commit 5da7e4d355
1 changed files with 5 additions and 2 deletions
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7
net/smc/smc_pnet.c
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@ -523,8 +523,11 @@ void smc_pnet_find_roce_resource(struct sock *sk,
read_lock(&smc_pnettable.lock);
list_for_each_entry(pnetelem, &smc_pnettable.pnetlist, list) {
if (dst->dev == pnetelem->ndev) {
*smcibdev = pnetelem->smcibdev;
*ibport = pnetelem->ib_port;
if (smc_ib_port_active(pnetelem->smcibdev,
pnetelem->ib_port)) {
*smcibdev = pnetelem->smcibdev;
*ibport = pnetelem->ib_port;
}
break;
}
}