ksmbd: set RDMA capability for FSCTL_QUERY_NETWORK_INTERFACE_INFO
set RDMA capability for
FSCTL_QUERY_NETWORK_INTERFACE_INFO.
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index ee91d99..c1a59459 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -22,6 +22,7 @@
#include "asn1.h"
#include "connection.h"
#include "transport_ipc.h"
+#include "transport_rdma.h"
#include "vfs.h"
#include "vfs_cache.h"
#include "misc.h"
@@ -7028,11 +7029,11 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn,
&rsp->Buffer[nbytes];
nii_rsp->IfIndex = cpu_to_le32(netdev->ifindex);
- /* TODO: specify the RDMA capabilities */
+ nii_rsp->Capability = 0;
if (netdev->num_tx_queues > 1)
- nii_rsp->Capability = cpu_to_le32(RSS_CAPABLE);
- else
- nii_rsp->Capability = 0;
+ nii_rsp->Capability |= cpu_to_le32(RSS_CAPABLE);
+ if (ksmbd_rdma_capable_netdev(netdev))
+ nii_rsp->Capability |= cpu_to_le32(RDMA_CAPABLE);
nii_rsp->Next = cpu_to_le32(152);
nii_rsp->Reserved = 0;
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index d5728c8..f818fe3 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -2033,6 +2033,20 @@ int ksmbd_rdma_destroy(void)
return 0;
}
+bool ksmbd_rdma_capable_netdev(struct net_device *netdev)
+{
+ struct ib_device *ibdev;
+ bool rdma_capable = false;
+
+ ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_UNKNOWN);
+ if (ibdev) {
+ if (rdma_frwr_is_supported(&ibdev->attrs))
+ rdma_capable = true;
+ ib_device_put(ibdev);
+ }
+ return rdma_capable;
+}
+
static struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops = {
.prepare = smb_direct_prepare,
.disconnect = smb_direct_disconnect,
diff --git a/fs/ksmbd/transport_rdma.h b/fs/ksmbd/transport_rdma.h
index da60fce..72e2574 100644
--- a/fs/ksmbd/transport_rdma.h
+++ b/fs/ksmbd/transport_rdma.h
@@ -53,9 +53,11 @@ struct smb_direct_data_transfer {
#ifdef CONFIG_SMB_SERVER_SMBDIRECT
int ksmbd_rdma_init(void);
int ksmbd_rdma_destroy(void);
+bool ksmbd_rdma_capable_netdev(struct net_device *netdev);
#else
static inline int ksmbd_rdma_init(void) { return 0; }
static inline int ksmbd_rdma_destroy(void) { return 0; }
+static inline bool ksmbd_rdma_capable_netdev(struct net_device *netdev) { return false; }
#endif
#endif /* __KSMBD_TRANSPORT_RDMA_H__ */