linux-kernel - Re: [Patch v3 04/19] CIFS: SMBD: Add SMBDirect transport to SMB connection and Makefile

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Date:   Tue, 29 Aug 2017 16:11:55 -0700
From:   Pavel Shilovsky <piastryyy@...il.com>
To:     Long Li <longli@...hange.microsoft.com>
Cc:     Steve French <sfrench@...ba.org>,
        linux-cifs <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-rdma@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
        Tom Talpey <ttalpey@...rosoft.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Long Li <longli@...rosoft.com>
Subject: Re: [Patch v3 04/19] CIFS: SMBD: Add SMBDirect transport to SMB
 connection and Makefile

2017-08-29 12:29 GMT-07:00 Long Li <longli@...hange.microsoft.com>:
> From: Long Li <longli@...rosoft.com>
>
> Add SMBDirect as an optional connection to the SMB session structure in CIFS.
> When SMB session is connected through SMBDirect, upper layer uses this
> connection to carry payloads.
>
> With the transport code hooked up to upper layer, add SMBDirect code to
> Makefile.
>
> Signed-off-by: Long Li <longli@...rosoft.com>
> ---
>  fs/cifs/Makefile   | 2 +-
>  fs/cifs/cifsglob.h | 2 ++
>  2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
> index eed7eb0..6bb9863 100644
> --- a/fs/cifs/Makefile
> +++ b/fs/cifs/Makefile
> @@ -18,4 +18,4 @@ cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
>  cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
>
>  cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o smb2maperror.o smb2transport.o \
> -                           smb2misc.o smb2pdu.o smb2inode.o smb2file.o
> +                           smb2misc.o smb2pdu.o smb2inode.o smb2file.o smbdirect.o
> diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
> index 703c2fb..dc5404d 100644
> --- a/fs/cifs/cifsglob.h
> +++ b/fs/cifs/cifsglob.h
> @@ -652,6 +652,8 @@ struct TCP_Server_Info {
>         bool    large_buf;              /* is current buffer large? */
>         /* use SMBD connection instead of socket */
>         bool    rdma;
> +       /* point to the SMBD connection if RDMA is used instead of socket */
> +       struct smbd_connection *smbd_conn;
>         struct delayed_work     echo; /* echo ping workqueue job */
>         char    *smallbuf;      /* pointer to current "small" buffer */
>         char    *bigbuf;        /* pointer to current "big" buffer */
> --
> 2.7.4
>
> --
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It is better to split the current patch into 2 and merge the Makefile
part to #3 and cifsglob.h part to #5.

--
Best regards,
Pavel Shilovsky