net/smc: return active RoCE port only (5da7e4d3) · Commits · e / devices / android_kernel_xiaomi_nabu

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>

net/smc/smc_pnet.c

+5 −2

Original line number	Original line	Diff line number	Diff line
	@@ -523,8 +523,11 @@ void smc_pnet_find_roce_resource(struct sock *sk,
	read_lock(&smc_pnettable.lock);		read_lock(&smc_pnettable.lock);
	list_for_each_entry(pnetelem, &smc_pnettable.pnetlist, list) {		list_for_each_entry(pnetelem, &smc_pnettable.pnetlist, list) {
	if (dst->dev == pnetelem->ndev) {		if (dst->dev == pnetelem->ndev) {
			if (smc_ib_port_active(pnetelem->smcibdev,
			pnetelem->ib_port)) {
	*smcibdev = pnetelem->smcibdev;		*smcibdev = pnetelem->smcibdev;
	*ibport = pnetelem->ib_port;		*ibport = pnetelem->ib_port;
			}
	break;		break;
	}		}
	}		}