[PATCH v2 100/127] smb: server: make use of smbdirect_frwr_is_supported()

[Stefan Metzmacher]

This is an exact copy of rdma_frwr_is_supported().

Cc: Namjae Jeon <linkinjeon at kernel.org>
Cc: Steve French <smfrench at gmail.com>
Cc: Tom Talpey <tom at talpey.com>
Cc: linux-cifs at vger.kernel.org
Cc: samba-technical at lists.samba.org
Signed-off-by: Stefan Metzmacher <metze at samba.org>
Signed-off-by: Steve French <stfrench at microsoft.com>
---
 fs/smb/server/transport_rdma.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 886a350819bf..7181d9f62b09 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -2179,15 +2179,6 @@ 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)
 {
@@ -2199,7 +2190,7 @@ 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);
@@ -2361,7 +2352,7 @@ static int smb_direct_ib_client_add(struct ib_device *ib_dev)
 	if (ib_dev->node_type != RDMA_NODE_IB_CA)
 		smb_direct_port = SMB_DIRECT_PORT_IWARP;
 
-	if (!rdma_frwr_is_supported(&ib_dev->attrs))
+	if (!smbdirect_frwr_is_supported(&ib_dev->attrs))
 		return 0;
 
 	smb_dev = kzalloc(sizeof(*smb_dev), KSMBD_DEFAULT_GFP);
@@ -2485,7 +2476,7 @@ static bool ksmbd_find_rdma_capable_netdev(struct net_device *netdev)
 
 		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);
 		}
 	}
-- 
2.43.0