diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/cmsg.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.c | 75 |
1 files changed, 64 insertions, 11 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c index e98bb9cdb6a3..baaea6f1a9d8 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c @@ -125,6 +125,27 @@ int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok) return 0; } +int nfp_flower_cmsg_portreify(struct nfp_repr *repr, bool exists) +{ + struct nfp_flower_cmsg_portreify *msg; + struct sk_buff *skb; + + skb = nfp_flower_cmsg_alloc(repr->app, sizeof(*msg), + NFP_FLOWER_CMSG_TYPE_PORT_REIFY, + GFP_KERNEL); + if (!skb) + return -ENOMEM; + + msg = nfp_flower_cmsg_get_data(skb); + msg->portnum = cpu_to_be32(repr->dst->u.port_info.port_id); + msg->reserved = 0; + msg->info = cpu_to_be16(exists); + + nfp_ctrl_tx(repr->app->ctrl, skb); + + return 0; +} + static void nfp_flower_cmsg_portmod_rx(struct nfp_app *app, struct sk_buff *skb) { @@ -161,6 +182,28 @@ nfp_flower_cmsg_portmod_rx(struct nfp_app *app, struct sk_buff *skb) } static void +nfp_flower_cmsg_portreify_rx(struct nfp_app *app, struct sk_buff *skb) +{ + struct nfp_flower_priv *priv = app->priv; + struct nfp_flower_cmsg_portreify *msg; + bool exists; + + msg = nfp_flower_cmsg_get_data(skb); + + rcu_read_lock(); + exists = !!nfp_app_repr_get(app, be32_to_cpu(msg->portnum)); + rcu_read_unlock(); + if (!exists) { + nfp_flower_cmsg_warn(app, "ctrl msg for unknown port 0x%08x\n", + be32_to_cpu(msg->portnum)); + return; + } + + atomic_inc(&priv->reify_replies); + wake_up_interruptible(&priv->reify_wait_queue); +} + +static void nfp_flower_cmsg_process_one_rx(struct nfp_app *app, struct sk_buff *skb) { struct nfp_flower_cmsg_hdr *cmsg_hdr; @@ -168,20 +211,14 @@ nfp_flower_cmsg_process_one_rx(struct nfp_app *app, struct sk_buff *skb) cmsg_hdr = nfp_flower_cmsg_get_hdr(skb); - if (unlikely(cmsg_hdr->version != NFP_FLOWER_CMSG_VER1)) { - nfp_flower_cmsg_warn(app, "Cannot handle repr control version %u\n", - cmsg_hdr->version); - goto out; - } - type = cmsg_hdr->type; switch (type) { + case NFP_FLOWER_CMSG_TYPE_PORT_REIFY: + nfp_flower_cmsg_portreify_rx(app, skb); + break; case NFP_FLOWER_CMSG_TYPE_PORT_MOD: nfp_flower_cmsg_portmod_rx(app, skb); break; - case NFP_FLOWER_CMSG_TYPE_FLOW_STATS: - nfp_flower_rx_flow_stats(app, skb); - break; case NFP_FLOWER_CMSG_TYPE_NO_NEIGH: nfp_tunnel_request_route(app, skb); break; @@ -217,7 +254,23 @@ void nfp_flower_cmsg_process_rx(struct work_struct *work) void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb) { struct nfp_flower_priv *priv = app->priv; + struct nfp_flower_cmsg_hdr *cmsg_hdr; + + cmsg_hdr = nfp_flower_cmsg_get_hdr(skb); - skb_queue_tail(&priv->cmsg_skbs, skb); - schedule_work(&priv->cmsg_work); + if (unlikely(cmsg_hdr->version != NFP_FLOWER_CMSG_VER1)) { + nfp_flower_cmsg_warn(app, "Cannot handle repr control version %u\n", + cmsg_hdr->version); + dev_kfree_skb_any(skb); + return; + } + + if (cmsg_hdr->type == NFP_FLOWER_CMSG_TYPE_FLOW_STATS) { + /* We need to deal with stats updates from HW asap */ + nfp_flower_rx_flow_stats(app, skb); + dev_consume_skb_any(skb); + } else { + skb_queue_tail(&priv->cmsg_skbs, skb); + schedule_work(&priv->cmsg_work); + } } |