Messages in this thread Patch in this message | | | From | Long Li <> | Subject | [Patch v2 05/19] CIFS: SMBD: Connect to SMBDirect session | Date | Sun, 20 Aug 2017 12:04:29 -0700 |
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From: Long Li <longli@microsoft.com>
When "rdma" is specified in the mount option, CIFS attempts to connect to SMBDirect instead of TCP socket.
Signed-off-by: Long Li <longli@microsoft.com> --- fs/cifs/connect.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d5d0ecd..309eba0 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -45,6 +45,7 @@ #include <linux/parser.h> #include <linux/bvec.h> +#include "smbdirect.h" #include "cifspdu.h" #include "cifsglob.h" #include "cifsproto.h" @@ -2299,12 +2300,26 @@ cifs_get_tcp_session(struct smb_vol *volume_info) else tcp_ses->echo_interval = SMB_ECHO_INTERVAL_DEFAULT * HZ; + if (tcp_ses->rdma) { + tcp_ses->smbd_conn = smbd_get_connection( + tcp_ses, (struct sockaddr *)&volume_info->dstaddr); + if (tcp_ses->smbd_conn) { + cifs_dbg(VFS, "RDMA transport established\n"); + rc = 0; + goto connected; + } else { + rc = -ENOENT; + goto out_err_crypto_release; + } + } + rc = ip_connect(tcp_ses); if (rc < 0) { cifs_dbg(VFS, "Error connecting to socket. Aborting operation.\n"); goto out_err_crypto_release; } +connected: /* * since we're in a cifs function already, we know that * this will succeed. No need for try_module_get(). -- 2.7.4
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