ionic: add generic filter search

In preparation for enhancing vlan filter management,
add a filter search routine that can figure out for
itself which type of filter search is needed.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
index 19115d9666932c6e3750dd9aca6c8e1203883606..38109244a72288b3cd5904bac56b7d25ed25dc54 100644 (file)
--- a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
@@ -239,6 +239,21 @@ struct ionic_rx_filter *ionic_rx_filter_rxsteer(struct ionic_lif *lif)
        return NULL;
 }
 
+static struct ionic_rx_filter *ionic_rx_filter_find(struct ionic_lif *lif,
+                                                   struct ionic_rx_filter_add_cmd *ac)
+{
+       switch (le16_to_cpu(ac->match)) {
+       case IONIC_RX_FILTER_MATCH_VLAN:
+               return ionic_rx_filter_by_vlan(lif, le16_to_cpu(ac->vlan.vlan));
+       case IONIC_RX_FILTER_MATCH_MAC:
+               return ionic_rx_filter_by_addr(lif, ac->mac.addr);
+       default:
+               netdev_err(lif->netdev, "unsupported filter match %d",
+                          le16_to_cpu(ac->match));
+               return NULL;
+       }
+}
+
 int ionic_lif_list_addr(struct ionic_lif *lif, const u8 *addr, bool mode)
 {
        struct ionic_rx_filter *f;
@@ -304,7 +319,7 @@ int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
        memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN);
 
        spin_lock_bh(&lif->rx_filters.lock);
-       f = ionic_rx_filter_by_addr(lif, addr);
+       f = ionic_rx_filter_find(lif, &ctx.cmd.rx_filter_add);
        if (f) {
                /* don't bother if we already have it and it is sync'd */
                if (f->state == IONIC_FILTER_STATE_SYNCED) {
@@ -336,7 +351,7 @@ int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
        spin_lock_bh(&lif->rx_filters.lock);
        if (err && err != -EEXIST) {
                /* set the state back to NEW so we can try again later */
-               f = ionic_rx_filter_by_addr(lif, addr);
+               f = ionic_rx_filter_find(lif, &ctx.cmd.rx_filter_add);
                if (f && f->state == IONIC_FILTER_STATE_SYNCED) {
                        f->state = IONIC_FILTER_STATE_NEW;
                        set_bit(IONIC_LIF_F_FILTER_SYNC_NEEDED, lif->state);
@@ -355,7 +370,7 @@ int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
        else
                lif->nucast++;
 
-       f = ionic_rx_filter_by_addr(lif, addr);
+       f = ionic_rx_filter_find(lif, &ctx.cmd.rx_filter_add);
        if (f && f->state == IONIC_FILTER_STATE_OLD) {
                /* Someone requested a delete while we were adding
                 * so update the filter info with the results from the add