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

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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: Chiara Meiohas <cmeiohas@nvidia.com>
Link: https://patch.msgid.link/674d498da4637a1503ff1367e28bd09ff942fd5e.1730381292.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Chiara Meiohas 2024-10-31 15:36:51 +02:00 committed by Leon Romanovsky
parent 6d9c7b2729
commit af7a35bf6c
2 changed files with 29 additions and 4 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

30
drivers/infiniband/core/roce_gid_mgmt.c
View file

@ -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,

3
include/rdma/ib_verbs.h
View file

@ -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);