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| author | Justin.Lee1@Dell.com <Justin.Lee1@Dell.com> | 2018-10-11 18:07:37 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-15 22:00:59 -0700 |
| commit | 9771b8ccdfa6dcb1ac5128ca7fe8649f3092d392 (patch) | |
| tree | c685a032ce049cb71428c0019925aeb7c5f2cda3 /net/ncsi/ncsi-cmd.c | |
| parent | 6384e483239fd07a2d4393f888027118fecd4c6e (diff) | |
| download | linux-9771b8ccdfa6dcb1ac5128ca7fe8649f3092d392.tar.gz | |
net/ncsi: Extend NC-SI Netlink interface to allow user space to send NC-SI command
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@dell.com> Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ncsi/ncsi-cmd.c')
| -rw-r--r-- | net/ncsi/ncsi-cmd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ncsi/ncsi-cmd.c b/net/ncsi/ncsi-cmd.c index 82b7d9201db8..356af474e43c 100644 --- a/net/ncsi/ncsi-cmd.c +++ b/net/ncsi/ncsi-cmd.c @@ -17,6 +17,7 @@ #include <net/ncsi.h> #include <net/net_namespace.h> #include <net/sock.h> +#include <net/genetlink.h> #include "internal.h" #include "ncsi-pkt.h" @@ -346,6 +347,13 @@ int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca) if (!nr) return -ENOMEM; + /* track netlink information */ + if (nca->req_flags == NCSI_REQ_FLAG_NETLINK_DRIVEN) { + nr->snd_seq = nca->info->snd_seq; + nr->snd_portid = nca->info->snd_portid; + nr->nlhdr = *nca->info->nlhdr; + } + /* Prepare the packet */ nca->id = nr->id; ret = nch->handler(nr->cmd, nca); |