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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>
This commit is contained in:
Hyunchul Lee 2021-07-13 16:09:34 +09:00 committed by Namjae Jeon
parent 96ad4ec51c
commit 03d8d4f189
3 changed files with 21 additions and 4 deletions
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9
fs/ksmbd/smb2pdu.c
View File

@ -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;

14
fs/ksmbd/transport_rdma.c
View File

@ -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,

2
fs/ksmbd/transport_rdma.h
View File

@ -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__ */