From: Lijun Ou <oulijun@xxxxxxxxxx> This patch adds get_netdev() function to the IB device. This shall be used to fetch netdev corresponding to the port number. This function would be called by IB core(Generic CM Agent) for example, when the RDMA connection is being established. Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx> Reviewed-by: Wei Hu <xavier.huwei@xxxxxxxxxx> Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx> --- drivers/infiniband/hw/hns/hns_roce_main.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index f64f0dd..39e69c3 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -372,6 +372,25 @@ static int hns_roce_query_device(struct ib_device *ib_dev, return 0; } +static struct net_device *hns_roce_get_netdev(struct ib_device *ib_dev, + u8 port_num) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct net_device *ndev; + + if (port_num < 1 || port_num > hr_dev->caps.num_ports) + return NULL; + + rcu_read_lock(); + + ndev = hr_dev->iboe.netdevs[port_num - 1]; + if (ndev) + dev_hold(ndev); + + rcu_read_unlock(); + return ndev; +} + static int hns_roce_query_port(struct ib_device *ib_dev, u8 port_num, struct ib_port_attr *props) { @@ -618,6 +637,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev) ib_dev->query_port = hns_roce_query_port; ib_dev->modify_port = hns_roce_modify_port; ib_dev->get_link_layer = hns_roce_get_link_layer; + ib_dev->get_netdev = hns_roce_get_netdev; ib_dev->query_gid = hns_roce_query_gid; ib_dev->query_pkey = hns_roce_query_pkey; ib_dev->alloc_ucontext = hns_roce_alloc_ucontext; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html