From: Long Li <longli@xxxxxxxxxxxxx> Starting with SMB2 dialect 3.0, Microsoft introduced SMBDirect transport protocol for transferring upper layer (SMB2) payload over RDMA via Infiniband, RoCE or iWARP. The prococol is published in [MS-SMBD] (https://msdn.microsoft.com/en-us/library/hh536346.aspx). The patch v2 added RDMA read/write via memory registration, and addressed feedbacks on v1. Long Li (19): CIFS: Add rdma mount option CIFS: SMBD: Add SMBDirect protocol and transport constants CIFS: SMBD: Implement SMBDirect transport CIFS: SMBD: Add SMBDirect transport to SMB connection and Makefile CIFS: SMBD: Connect to SMBDirect session CIFS: SMBD: Reconnect to SMBDirect session CIFS: SMBD: Destroy SMBDirect session on shutdown or umount CIFS: SMBD: Set SMBDirect maximum read or write size for I/O CIFS: SMBD: Read data from SMBDirect CIFS: SMBD: Send data through SMBDirect CIFS: SMBD: Define memory registration for I/O data CIFS: SMBD: Fix the definition for SMB2_CHANNEL_RDMA_V1_INVALIDATE CIFS: SMBD: Use registered memory RDMA read for SMB write CIFS: SMBD: Deregister memory when finishing SMB write CIFS: SMBD: Add parameter rdata to smb2_new_read_req CIFS: SMBD: Read correct returned data length for RDMA write (SMB READ) I/O CIFS: SMBD: Do not read from transport on registered memory RDMA write (SMB READ) CIFS: SMBD: Deregister memory when finishing SMB read CIFS: SMBD: Add SMBDirect debug counters fs/cifs/Makefile | 2 +- fs/cifs/cifs_debug.c | 48 ++ fs/cifs/cifsfs.c | 2 + fs/cifs/cifsglob.h | 17 +- fs/cifs/cifssmb.c | 4 +- fs/cifs/connect.c | 62 +- fs/cifs/file.c | 5 + fs/cifs/smb1ops.c | 2 +- fs/cifs/smb2ops.c | 21 +- fs/cifs/smb2pdu.c | 114 ++- fs/cifs/smb2pdu.h | 2 +- fs/cifs/smbdirect.c | 2328 ++++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smbdirect.h | 300 +++++++ fs/cifs/transport.c | 7 + 14 files changed, 2895 insertions(+), 19 deletions(-) create mode 100644 fs/cifs/smbdirect.c create mode 100644 fs/cifs/smbdirect.h -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
