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Message-ID: <7F21C163-21CD-4088-B32B-DACA9D46568D@fb.com>
Date: Wed, 10 Oct 2018 21:30:48 +0000
From: Vijay Khemka <vijaykhemka@...com>
To: "Justin.Lee1@...l.com" <Justin.Lee1@...l.com>,
"sam@...dozajonas.com" <sam@...dozajonas.com>,
"joel@....id.au" <joel@....id.au>
CC: "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>,
Amithash Prasad <amithash@...com>,
"christian@....nu" <christian@....nu>
Subject: Re: [PATCH net-next v5] net/ncsi: Extend NC-SI Netlink interface to
allow user space to send NC-SI command
On 10/10/18, 11:12 AM, "Justin.Lee1@...l.com" <Justin.Lee1@...l.com> wrote:
The new command (NCSI_CMD_SEND_CMD) is added to allow user space application
to send NC-SI command to the network card.
Also, add a new attribute (NCSI_ATTR_DATA) for transferring request and response.
The work flow is as below.
Request:
User space application
-> Netlink interface (msg)
-> new Netlink handler - ncsi_send_cmd_nl()
-> ncsi_xmit_cmd()
Response:
Response received - ncsi_rcv_rsp()
-> internal response handler - ncsi_rsp_handler_xxx()
-> ncsi_rsp_handler_netlink()
-> ncsi_send_netlink_rsp ()
-> Netlink interface (msg)
-> user space application
Command timeout - ncsi_request_timeout()
-> ncsi_send_netlink_timeout ()
-> Netlink interface (msg with zero data length)
-> user space application
Error:
Error detected
-> ncsi_send_netlink_err ()
-> Netlink interface (err msg)
-> user space application
Signed-off-by: Justin Lee <justin.lee1@...l.com>
Reviewed-by : Vijay Khemka <vijaykhemka@...com>
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