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SubjectRE: [PATCH] net/ncsi: add control packet payload to NC-SI commands from netlink
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> Hi Ben, 
>
> > Hi Justin,
> >
> > > Hi Ben,
> > >
> > > I have similar fix locally with different approach as the command handler may have some expectation for those byes.
> > > We can use NCSI_PKT_CMD_OEM handler as it only copies data based on the payload length.
> >
> > Great! Yes I was thinking the same, we just need some way to take data payload sent from netlink message and sent it over NC-SI.
> >
> > >
> > > diff --git a/net/ncsi/ncsi-cmd.c b/net/ncsi/ncsi-cmd.c index 5c3fad8..3b01f65 100644
> > > --- a/net/ncsi/ncsi-cmd.c
> > > +++ b/net/ncsi/ncsi-cmd.c
> > > @@ -309,14 +309,19 @@ static struct ncsi_request *ncsi_alloc_command(struct ncsi_cmd_arg *nca)
> > >
> > > int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca) {
> > > + struct ncsi_cmd_handler *nch = NULL;
> > > struct ncsi_request *nr;
> > > + unsigned char type;
> > > struct ethhdr *eh;
> > > - struct ncsi_cmd_handler *nch = NULL;
> > > int i, ret;
> > >
> > > + if (nca->req_flags == NCSI_REQ_FLAG_NETLINK_DRIVEN)
> > > + type = NCSI_PKT_CMD_OEM;
> > > + else
> > > + type = nca->type;
> > > /* Search for the handler */
> > > for (i = 0; i < ARRAY_SIZE(ncsi_cmd_handlers); i++) {
> > > - if (ncsi_cmd_handlers[i].type == nca->type) {
> > > + if (ncsi_cmd_handlers[i].type == type) {
> > > if (ncsi_cmd_handlers[i].handler)
> > > nch = &ncsi_cmd_handlers[i];
> > > else
> > >
> >
> > So in this case NCSI_PKT_CMD_OEM would be the default handler for all NC-SI command over netlink (standard and OEM), correct?
> Yes, that is correct. The handler for NCSI_PKT_CMD_OEM command is generic.
>
> > Should we rename this to something like NCSI_PKT_CMD_GENERIC for clarity perhaps? Do you plan to upstream this patch?
> NCSI_PKT_CMD_OEM is a real command type and it is defined by the NC-SI specific.
> We can add comments to indicate that we use the generic command handler from NCSI_PKT_CMD_OEM command.
>
> Does the change work for you? If so, I will prepare the patch.

Thanks Justin. I verified this change and it works, thanks!

-Ben

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