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Date: Fri, 8 Dec 2017 19:37:02 -0800
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: netdev@...r.kernel.org
Cc: oss-drivers@...ronome.com, John Hurley <john.hurley@...ronome.com>
Subject: [PATCH net-next 2/4] nfp: flower: remove dead code paths
From: John Hurley <john.hurley@...ronome.com>
Port matching is selected by default on every rule so remove check for it
and delete 'else' side of the statement. Remove nfp_flower_meta_one as now
it will not feature in the code. Rename nfp_flower_meta_two given that one
has been removed.
'Additional metadata' if statement can never be true so remove it as well.
Signed-off-by: John Hurley <john.hurley@...ronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@...ronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 16 +----
drivers/net/ethernet/netronome/nfp/flower/match.c | 79 ++++++++--------------
.../net/ethernet/netronome/nfp/flower/offload.c | 2 +-
3 files changed, 29 insertions(+), 68 deletions(-)
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
index 66070741d55f..430a3932cf4d 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -165,20 +165,6 @@ struct nfp_fl_pop_vlan {
__be16 reserved;
};
-/* Metadata without L2 (1W/4B)
- * ----------------------------------------------------------------
- * 3 2 1
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | key_layers | mask_id | reserved |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
-struct nfp_flower_meta_one {
- u8 nfp_flow_key_layer;
- u8 mask_id;
- u16 reserved;
-};
-
struct nfp_fl_pre_tunnel {
struct nfp_fl_act_head head;
__be16 reserved;
@@ -209,7 +195,7 @@ struct nfp_fl_set_vxlan {
* NOTE: | TCI |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
-struct nfp_flower_meta_two {
+struct nfp_flower_meta_tci {
u8 nfp_flow_key_layer;
u8 mask_id;
__be16 tci;
diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c
index 60614d4f0e22..1f2b879e12d4 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/match.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/match.c
@@ -38,7 +38,7 @@
#include "main.h"
static void
-nfp_flower_compile_meta_tci(struct nfp_flower_meta_two *frame,
+nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *frame,
struct tc_cls_flower_offload *flow, u8 key_type,
bool mask_version)
{
@@ -46,7 +46,7 @@ nfp_flower_compile_meta_tci(struct nfp_flower_meta_two *frame,
struct flow_dissector_key_vlan *flow_vlan;
u16 tmp_tci;
- memset(frame, 0, sizeof(struct nfp_flower_meta_two));
+ memset(frame, 0, sizeof(struct nfp_flower_meta_tci));
/* Populate the metadata frame. */
frame->nfp_flow_key_layer = key_type;
frame->mask_id = ~0;
@@ -67,14 +67,6 @@ nfp_flower_compile_meta_tci(struct nfp_flower_meta_two *frame,
}
}
-static void
-nfp_flower_compile_meta(struct nfp_flower_meta_one *frame, u8 key_type)
-{
- frame->nfp_flow_key_layer = key_type;
- frame->mask_id = 0;
- frame->reserved = 0;
-}
-
static int
nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
bool mask_version, enum nfp_flower_tun_type tun_type)
@@ -278,49 +270,32 @@ int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow,
ext = nfp_flow->unmasked_data;
msk = nfp_flow->mask_data;
- if (NFP_FLOWER_LAYER_PORT & key_ls->key_layer) {
- /* Populate Exact Metadata. */
- nfp_flower_compile_meta_tci((struct nfp_flower_meta_two *)ext,
- flow, key_ls->key_layer, false);
- /* Populate Mask Metadata. */
- nfp_flower_compile_meta_tci((struct nfp_flower_meta_two *)msk,
- flow, key_ls->key_layer, true);
- ext += sizeof(struct nfp_flower_meta_two);
- msk += sizeof(struct nfp_flower_meta_two);
-
- /* Populate Exact Port data. */
- err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext,
- nfp_repr_get_port_id(netdev),
- false, tun_type);
- if (err)
- return err;
-
- /* Populate Mask Port Data. */
- err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk,
- nfp_repr_get_port_id(netdev),
- true, tun_type);
- if (err)
- return err;
-
- ext += sizeof(struct nfp_flower_in_port);
- msk += sizeof(struct nfp_flower_in_port);
- } else {
- /* Populate Exact Metadata. */
- nfp_flower_compile_meta((struct nfp_flower_meta_one *)ext,
- key_ls->key_layer);
- /* Populate Mask Metadata. */
- nfp_flower_compile_meta((struct nfp_flower_meta_one *)msk,
- key_ls->key_layer);
- ext += sizeof(struct nfp_flower_meta_one);
- msk += sizeof(struct nfp_flower_meta_one);
- }
- if (NFP_FLOWER_LAYER_META & key_ls->key_layer) {
- /* Additional Metadata Fields.
- * Currently unsupported.
- */
- return -EOPNOTSUPP;
- }
+ /* Populate Exact Metadata. */
+ nfp_flower_compile_meta_tci((struct nfp_flower_meta_tci *)ext,
+ flow, key_ls->key_layer, false);
+ /* Populate Mask Metadata. */
+ nfp_flower_compile_meta_tci((struct nfp_flower_meta_tci *)msk,
+ flow, key_ls->key_layer, true);
+ ext += sizeof(struct nfp_flower_meta_tci);
+ msk += sizeof(struct nfp_flower_meta_tci);
+
+ /* Populate Exact Port data. */
+ err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext,
+ nfp_repr_get_port_id(netdev),
+ false, tun_type);
+ if (err)
+ return err;
+
+ /* Populate Mask Port Data. */
+ err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk,
+ nfp_repr_get_port_id(netdev),
+ true, tun_type);
+ if (err)
+ return err;
+
+ ext += sizeof(struct nfp_flower_in_port);
+ msk += sizeof(struct nfp_flower_in_port);
if (NFP_FLOWER_LAYER_MAC & key_ls->key_layer) {
/* Populate Exact MAC Data. */
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index 1b7c59a8b139..98fb1cba3ed9 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -151,7 +151,7 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
key_layer_two = 0;
key_layer = NFP_FLOWER_LAYER_PORT;
- key_size = sizeof(struct nfp_flower_meta_one) +
+ key_size = sizeof(struct nfp_flower_meta_tci) +
sizeof(struct nfp_flower_in_port);
if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS) ||
--
2.15.1
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