]> asedeno.scripts.mit.edu Git - linux.git/commitdiff
nfp: bpf: disable all ctrl vNIC capabilities
authorJakub Kicinski <jakub.kicinski@netronome.com>
Thu, 18 Jan 2018 02:51:06 +0000 (18:51 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 19 Jan 2018 20:44:19 +0000 (15:44 -0500)
BPF firmware currently exposes IRQ moderation capability.
The driver will make use of it by default, inserting 50 usec
delay to every control message exchange.  This cuts the number
of messages per second we can exchange by almost half.

None of the other capabilities make much sense for BPF control
vNIC, either.  Disable them all.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/netronome/nfp/bpf/main.c

index 5f021d0c88a49a44667a44e492825a731451d5d6..4ee11bf2aed77a8837095738bd88d66bcc9d8471 100644 (file)
@@ -389,7 +389,7 @@ const struct nfp_app_type app_bpf = {
        .id             = NFP_APP_BPF_NIC,
        .name           = "ebpf",
 
-       .ctrl_cap_mask  = ~0U,
+       .ctrl_cap_mask  = 0,
 
        .init           = nfp_bpf_init,
        .clean          = nfp_bpf_clean,