From 79ca38e80c4588adeb11a0abd116d72ab6fe0ecc Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 25 Jul 2018 19:53:31 -0700 Subject: nfp: allow control message reception on data queues Port id 0xffffffff is reserved for control messages. Allow reception of messages with this id on data queues. Hand off a raw buffer to the higher layer code, without allocating SKB for max efficiency. The RX handle can't modify or keep the buffer, after it returns buffer is handed back over to the NIC RX free buffer list. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: Daniel Borkmann --- drivers/net/ethernet/netronome/nfp/nfp_app.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/ethernet/netronome/nfp/nfp_app.c') diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/ethernet/netronome/nfp/nfp_app.c index 69d4ae7a61f3..8607d09ab732 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c @@ -172,6 +172,8 @@ struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id) if (WARN_ON(!apps[id]->name || !apps[id]->vnic_alloc)) return ERR_PTR(-EINVAL); + if (WARN_ON(!apps[id]->ctrl_msg_rx && apps[id]->ctrl_msg_rx_raw)) + return ERR_PTR(-EINVAL); app = kzalloc(sizeof(*app), GFP_KERNEL); if (!app) -- cgit