[PATCHv6 net-next 14/15] nfp: bpf: add support for legacy redirect action
flat view
STALE3681d
From: Jakub Kicinski <hidden>
Date: 2016-09-18 15:10:01
Subsystem:
netronome ethernet drivers, networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 6 in this series.
Data path has redirect support so expressing redirect to the port frame came from is a trivial matter of setting the right result code. Signed-off-by: Jakub Kicinski <redacted> --- drivers/net/ethernet/netronome/nfp/nfp_bpf.h | 1 + drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c | 2 ++ drivers/net/ethernet/netronome/nfp/nfp_net_offload.c | 4 ++++ 3 files changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf.h b/drivers/net/ethernet/netronome/nfp/nfp_bpf.h
index 2adb1d80c7b7..adbe0235d98e 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_bpf.h@@ -60,6 +60,7 @@ enum static_regs { enum nfp_bpf_action_type { NN_ACT_TC_DROP, + NN_ACT_TC_REDIR, }; /* Software register representation, hardware encoding in asm.h */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
index 368381f0357f..434bef975c58 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c@@ -1440,6 +1440,7 @@ static void nfp_outro_tc_legacy(struct nfp_prog *nfp_prog) { const u8 act2code[] = { [NN_ACT_TC_DROP] = 0x22, + [NN_ACT_TC_REDIR] = 0x24 }; /* Target for aborts */ nfp_prog->tgt_abort = nfp_prog_current_offset(nfp_prog);
@@ -1468,6 +1469,7 @@ static void nfp_outro(struct nfp_prog *nfp_prog) { switch (nfp_prog->act) { case NN_ACT_TC_DROP: + case NN_ACT_TC_REDIR: nfp_outro_tc_legacy(nfp_prog); break; }
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c b/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c
index 0537a53e2174..1ec8e5b74651 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_offload.c@@ -123,6 +123,10 @@ nfp_net_bpf_get_act(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf) list_for_each_entry(a, &actions, list) { if (is_tcf_gact_shot(a)) return NN_ACT_TC_DROP; + + if (is_tcf_mirred_redirect(a) && + tcf_mirred_ifindex(a) == nn->netdev->ifindex) + return NN_ACT_TC_REDIR; } return -ENOTSUPP;
--
1.9.1