diff options
| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-01-11 20:29:11 -0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-01-14 23:36:30 +0100 |
| commit | d48ae231c5e13d98e3664443c6342c2011f5df2b (patch) | |
| tree | 058ec5ca9014b492115bf33b7daf0b723c47ba2c /drivers/net/ethernet/netronome/nfp/bpf/main.c | |
| parent | nfp: bpf: add map data structure (diff) | |
| download | linux-dev-d48ae231c5e13d98e3664443c6342c2011f5df2b.tar.xz linux-dev-d48ae231c5e13d98e3664443c6342c2011f5df2b.zip | |
nfp: bpf: add basic control channel communication
For map support we will need to send and receive control messages.
Add basic support for sending a message to FW, and waiting for a
reply.
Control messages are tagged with a 16 bit ID. Add a simple ID
allocator and make sure we don't allow too many messages in flight,
to avoid request <> reply mismatches.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/main.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c index c9fd7d417d1a..a14368c6449f 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/main.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c @@ -313,6 +313,8 @@ static int nfp_bpf_init(struct nfp_app *app) bpf->app = app; app->priv = bpf; + skb_queue_head_init(&bpf->cmsg_replies); + init_waitqueue_head(&bpf->cmsg_wq); INIT_LIST_HEAD(&bpf->map_list); err = nfp_bpf_parse_capabilities(app); @@ -330,6 +332,7 @@ static void nfp_bpf_clean(struct nfp_app *app) { struct nfp_app_bpf *bpf = app->priv; + WARN_ON(!skb_queue_empty(&bpf->cmsg_replies)); WARN_ON(!list_empty(&bpf->map_list)); kfree(bpf); } @@ -348,6 +351,8 @@ const struct nfp_app_type app_bpf = { .vnic_alloc = nfp_bpf_vnic_alloc, .vnic_free = nfp_bpf_vnic_free, + .ctrl_msg_rx = nfp_bpf_ctrl_msg_rx, + .setup_tc = nfp_bpf_setup_tc, .tc_busy = nfp_bpf_tc_busy, .bpf = nfp_ndo_bpf, |