smb: server: make use of smbdirect_frwr_is_supported()

This is an exact copy of rdma_frwr_is_supported().

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 1606fc70810e373e86500697a8881fb59dfc46f5..feb57119682440a064c38304af9697883839c2f8 100644 (file)
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -2490,15 +2490,6 @@ static int smb_direct_connect(struct smbdirect_socket *sc)
        return 0;
 }
 
-static bool rdma_frwr_is_supported(struct ib_device_attr *attrs)
-{
-       if (!(attrs->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS))
-               return false;
-       if (attrs->max_fast_reg_page_list_len == 0)
-               return false;
-       return true;
-}
-
 static int smb_direct_handle_connect_request(struct rdma_cm_id *new_cm_id,
                                             struct rdma_cm_event *event)
 {
@@ -2511,7 +2502,7 @@ static int smb_direct_handle_connect_request(struct rdma_cm_id *new_cm_id,
        u8 peer_responder_resources;
        int ret;
 
-       if (!rdma_frwr_is_supported(&new_cm_id->device->attrs)) {
+       if (!smbdirect_frwr_is_supported(&new_cm_id->device->attrs)) {
                ksmbd_debug(RDMA,
                            "Fast Registration Work Requests is not supported. device capabilities=%llx\n",
                            new_cm_id->device->attrs.device_cap_flags);
@@ -2703,7 +2694,7 @@ static int smb_direct_ib_client_add(struct ib_device *ib_dev)
 {
        struct smb_direct_device *smb_dev;
 
-       if (!rdma_frwr_is_supported(&ib_dev->attrs))
+       if (!smbdirect_frwr_is_supported(&ib_dev->attrs))
                return 0;
 
        smb_dev = kzalloc_obj(*smb_dev, KSMBD_DEFAULT_GFP);
@@ -2851,7 +2842,7 @@ out:
 
                ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_UNKNOWN);
                if (ibdev) {
-                       rdma_capable = rdma_frwr_is_supported(&ibdev->attrs);
+                       rdma_capable = smbdirect_frwr_is_supported(&ibdev->attrs);
                        ib_device_put(ibdev);
                }
        }