From d4b69bad61e0fc4055c108fa28846ae981948d54 Mon Sep 17 00:00:00 2001 From: John Hurley Date: Fri, 9 Nov 2018 21:21:31 -0800 Subject: [PATCH] nfp: flower: remove unnecessary code in flow lookup Recent changes to NFP mean that stats updates from fw to driver no longer require a flow lookup and (because egdev offload has been removed) the ingress netdev for a lookup is now always known. Remove obsolete code in a flow lookup that matches on host context and that allows for a netdev to be NULL. Signed-off-by: John Hurley Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/flower/main.h | 3 +-- drivers/net/ethernet/netronome/nfp/flower/metadata.c | 11 +++-------- drivers/net/ethernet/netronome/nfp/flower/offload.c | 6 ++---- 3 files changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 9d134aa871fc..b858bac47621 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -20,7 +20,6 @@ struct nfp_fl_pre_lag; struct net_device; struct nfp_app; -#define NFP_FL_STATS_CTX_DONT_CARE cpu_to_be32(0xffffffff) #define NFP_FL_STATS_ELEM_RS FIELD_SIZEOF(struct nfp_fl_stats_id, \ init_unalloc) #define NFP_FLOWER_MASK_ENTRY_RS 256 @@ -242,7 +241,7 @@ int nfp_modify_flow_metadata(struct nfp_app *app, struct nfp_fl_payload * nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie, - struct net_device *netdev, __be32 host_ctx); + struct net_device *netdev); struct nfp_fl_payload * nfp_flower_remove_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie); diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c index 9b4711ce98f0..573a4400a26c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c +++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c @@ -21,7 +21,6 @@ struct nfp_mask_id_table { struct nfp_fl_flow_table_cmp_arg { struct net_device *netdev; unsigned long cookie; - __be32 host_ctx; }; static int nfp_release_stats_entry(struct nfp_app *app, u32 stats_context_id) @@ -76,14 +75,13 @@ static int nfp_get_stats_entry(struct nfp_app *app, u32 *stats_context_id) /* Must be called with either RTNL or rcu_read_lock */ struct nfp_fl_payload * nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie, - struct net_device *netdev, __be32 host_ctx) + struct net_device *netdev) { struct nfp_fl_flow_table_cmp_arg flower_cmp_arg; struct nfp_flower_priv *priv = app->priv; flower_cmp_arg.netdev = netdev; flower_cmp_arg.cookie = tc_flower_cookie; - flower_cmp_arg.host_ctx = host_ctx; return rhashtable_lookup_fast(&priv->flow_table, &flower_cmp_arg, nfp_flower_table_params); @@ -307,8 +305,7 @@ int nfp_compile_flow_metadata(struct nfp_app *app, priv->stats[stats_cxt].bytes = 0; priv->stats[stats_cxt].used = jiffies; - check_entry = nfp_flower_search_fl_table(app, flow->cookie, netdev, - NFP_FL_STATS_CTX_DONT_CARE); + check_entry = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (check_entry) { if (nfp_release_stats_entry(app, stats_cxt)) return -EINVAL; @@ -353,9 +350,7 @@ static int nfp_fl_obj_cmpfn(struct rhashtable_compare_arg *arg, const struct nfp_fl_flow_table_cmp_arg *cmp_arg = arg->key; const struct nfp_fl_payload *flow_entry = obj; - if ((!cmp_arg->netdev || flow_entry->ingress_dev == cmp_arg->netdev) && - (cmp_arg->host_ctx == NFP_FL_STATS_CTX_DONT_CARE || - flow_entry->meta.host_ctx_id == cmp_arg->host_ctx)) + if (flow_entry->ingress_dev == cmp_arg->netdev) return flow_entry->tc_flower_cookie != cmp_arg->cookie; return 1; diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 0e2dfbb3ef86..545d94168874 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -512,8 +512,7 @@ nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev, if (nfp_netdev_is_nfp_repr(netdev)) port = nfp_port_from_netdev(netdev); - nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev, - NFP_FL_STATS_CTX_DONT_CARE); + nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (!nfp_flow) return -ENOENT; @@ -561,8 +560,7 @@ nfp_flower_get_stats(struct nfp_app *app, struct net_device *netdev, struct nfp_fl_payload *nfp_flow; u32 ctx_id; - nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev, - NFP_FL_STATS_CTX_DONT_CARE); + nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (!nfp_flow) return -EINVAL; -- 2.30.2