net/enic: remove VLAN filter handler

VIC does not support VLAN filtering at the moment. The firmware does
accept the filter add/del commands and returns success. But, they are
no-ops. To avoid confusion, remove the filter set handler so the app
sees an error instead of silent failure.

Also during the device configure time, enicpmd_vlan_offload_set would
not print a warning message about unsupported VLAN filtering, because
the caller specifies only ETH_VLAN_STRIP_MASK. This is wrong, as we
should attempt to apply all requested offloads at the configure
time. So, pass all VLAN offload masks, which triggers a warning
message about VLAN filtering, if requested.

Finally, enicpmd_vlan_offload_set should check both mask and
rxmode.offloads, not just mask.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>

diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index bdbaf4c..e5523e3 100644 (file)
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -318,40 +318,29 @@ static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
        return enicpmd_dev_setup_intr(enic);
 }
 
-static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
-       uint16_t vlan_id, int on)
-{
-       struct enic *enic = pmd_priv(eth_dev);
-       int err;
-
-       ENICPMD_FUNC_TRACE();
-       if (on)
-               err = enic_add_vlan(enic, vlan_id);
-       else
-               err = enic_del_vlan(enic, vlan_id);
-       return err;
-}
-
 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 {
        struct enic *enic = pmd_priv(eth_dev);
+       uint64_t offloads;
 
        ENICPMD_FUNC_TRACE();
 
+       offloads = eth_dev->data->dev_conf.rxmode.offloads;
        if (mask & ETH_VLAN_STRIP_MASK) {
-               if (eth_dev->data->dev_conf.rxmode.offloads &
-                   DEV_RX_OFFLOAD_VLAN_STRIP)
+               if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
                        enic->ig_vlan_strip_en = 1;
                else
                        enic->ig_vlan_strip_en = 0;
        }
 
-       if (mask & ETH_VLAN_FILTER_MASK) {
+       if ((mask & ETH_VLAN_FILTER_MASK) &&
+           (offloads & DEV_RX_OFFLOAD_VLAN_FILTER)) {
                dev_warning(enic,
                        "Configuration of VLAN filter is not supported\n");
        }
 
-       if (mask & ETH_VLAN_EXTEND_MASK) {
+       if ((mask & ETH_VLAN_EXTEND_MASK) &&
+           (offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)) {
                dev_warning(enic,
                        "Configuration of extended VLAN is not supported\n");
        }
@@ -362,6 +351,7 @@ static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 {
        int ret;
+       int mask;
        struct enic *enic = pmd_priv(eth_dev);
 
        if (rte_eal_process_type() != RTE_PROC_PRIMARY)
@@ -376,7 +366,11 @@ static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 
        enic->hw_ip_checksum = !!(eth_dev->data->dev_conf.rxmode.offloads &
                                  DEV_RX_OFFLOAD_CHECKSUM);
-       ret = enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
+       /* All vlan offload masks to apply the current settings */
+       mask = ETH_VLAN_STRIP_MASK |
+               ETH_VLAN_FILTER_MASK |
+               ETH_VLAN_EXTEND_MASK;
+       ret = enicpmd_vlan_offload_set(eth_dev, mask);
        if (ret) {
                dev_err(enic, "Failed to configure VLAN offloads\n");
                return ret;
@@ -710,7 +704,7 @@ static const struct eth_dev_ops enicpmd_eth_dev_ops = {
        .dev_infos_get        = enicpmd_dev_info_get,
        .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
        .mtu_set              = enicpmd_mtu_set,
-       .vlan_filter_set      = enicpmd_vlan_filter_set,
+       .vlan_filter_set      = NULL,
        .vlan_tpid_set        = NULL,
        .vlan_offload_set     = enicpmd_vlan_offload_set,
        .vlan_strip_queue_set = NULL,