Commit af7a35bf authored by Chiara Meiohas's avatar Chiara Meiohas Committed by Leon Romanovsky
Browse files

RDMA/core: Implement RoCE GID port rescan and export delete function 



rdma_roce_rescan_port() scans all network devices in
the system and adds the gids if relevant to the RoCE device
port. When not in bonding mode it adds the GIDs of the
netdevice in this port. When in bonding mode it adds the
GIDs of both the port's netdevice and the bond master
netdevice.

Export roce_del_all_netdev_gids(), which  removes all GIDs
associated with a specific netdevice for a given port.

Signed-off-by: default avatarChiara Meiohas <cmeiohas@nvidia.com>
Link: https://patch.msgid.link/674d498da4637a1503ff1367e28bd09ff942fd5e.1730381292.git.leon@kernel.org


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 6d9c7b27

drivers/infiniband/core/roce_gid_mgmt.c

+26 −4
Original line number Diff line number Diff line
@@ -515,6 +515,27 @@ void rdma_roce_rescan_device(struct ib_device *ib_dev) 
}

EXPORT_SYMBOL(rdma_roce_rescan_device);



/**

 * rdma_roce_rescan_port - Rescan all of the network devices in the system

 * and add their gids if relevant to the port of the RoCE device.

 *

 * @ib_dev: IB device

 * @port: Port number

 */

void rdma_roce_rescan_port(struct ib_device *ib_dev, u32 port)

{

	struct net_device *ndev = NULL;



	if (rdma_protocol_roce(ib_dev, port)) {

		ndev = ib_device_get_netdev(ib_dev, port);

		if (!ndev)

			return;

		enum_all_gids_of_dev_cb(ib_dev, port, ndev, ndev);

		dev_put(ndev);

	}

}

EXPORT_SYMBOL(rdma_roce_rescan_port);



static void callback_for_addr_gid_device_scan(struct ib_device *device,

					      u32 port,

					      struct net_device *rdma_ndev,
@@ -575,16 +596,17 @@ static void handle_netdev_upper(struct ib_device *ib_dev, u32 port, 
	}

}



static void _roce_del_all_netdev_gids(struct ib_device *ib_dev, u32 port,

				      struct net_device *event_ndev)

void roce_del_all_netdev_gids(struct ib_device *ib_dev,

			      u32 port, struct net_device *ndev)

{

	ib_cache_gid_del_all_netdev_gids(ib_dev, port, event_ndev);

	ib_cache_gid_del_all_netdev_gids(ib_dev, port, ndev);

}

EXPORT_SYMBOL(roce_del_all_netdev_gids);



static void del_netdev_upper_ips(struct ib_device *ib_dev, u32 port,

				 struct net_device *rdma_ndev, void *cookie)

{

	handle_netdev_upper(ib_dev, port, cookie, _roce_del_all_netdev_gids);

	handle_netdev_upper(ib_dev, port, cookie, roce_del_all_netdev_gids);

}



static void add_netdev_upper_ips(struct ib_device *ib_dev, u32 port,

include/rdma/ib_verbs.h

+3 −0
Original line number Diff line number Diff line
@@ -4734,6 +4734,9 @@ ib_get_vector_affinity(struct ib_device *device, int comp_vector) 
 * @device:         the rdma device

 */

void rdma_roce_rescan_device(struct ib_device *ibdev);

void rdma_roce_rescan_port(struct ib_device *ib_dev, u32 port);

void roce_del_all_netdev_gids(struct ib_device *ib_dev,

			      u32 port, struct net_device *ndev);



struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile);