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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/net/dsa/mv88e6xxx/switchdev.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/switchdev.c')
-rw-r--r--drivers/net/dsa/mv88e6xxx/switchdev.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/switchdev.c b/drivers/net/dsa/mv88e6xxx/switchdev.c
new file mode 100644
index 0000000000..4c346a884f
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx/switchdev.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * switchdev.c
+ *
+ * Authors:
+ * Hans J. Schultz <netdev@kapio-technology.com>
+ *
+ */
+
+#include <net/switchdev.h>
+#include "chip.h"
+#include "global1.h"
+#include "switchdev.h"
+
+struct mv88e6xxx_fid_search_ctx {
+ u16 fid_search;
+ u16 vid_found;
+};
+
+static int __mv88e6xxx_find_vid(struct mv88e6xxx_chip *chip,
+ const struct mv88e6xxx_vtu_entry *entry,
+ void *priv)
+{
+ struct mv88e6xxx_fid_search_ctx *ctx = priv;
+
+ if (ctx->fid_search == entry->fid) {
+ ctx->vid_found = entry->vid;
+ return 1;
+ }
+
+ return 0;
+}
+
+static int mv88e6xxx_find_vid(struct mv88e6xxx_chip *chip, u16 fid, u16 *vid)
+{
+ struct mv88e6xxx_fid_search_ctx ctx;
+ int err;
+
+ ctx.fid_search = fid;
+ mv88e6xxx_reg_lock(chip);
+ err = mv88e6xxx_vtu_walk(chip, __mv88e6xxx_find_vid, &ctx);
+ mv88e6xxx_reg_unlock(chip);
+ if (err < 0)
+ return err;
+ if (err == 1)
+ *vid = ctx.vid_found;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+int mv88e6xxx_handle_miss_violation(struct mv88e6xxx_chip *chip, int port,
+ struct mv88e6xxx_atu_entry *entry, u16 fid)
+{
+ struct switchdev_notifier_fdb_info info = {
+ .addr = entry->mac,
+ .locked = true,
+ };
+ struct net_device *brport;
+ struct dsa_port *dp;
+ u16 vid;
+ int err;
+
+ err = mv88e6xxx_find_vid(chip, fid, &vid);
+ if (err)
+ return err;
+
+ info.vid = vid;
+ dp = dsa_to_port(chip->ds, port);
+
+ rtnl_lock();
+ brport = dsa_port_to_bridge_port(dp);
+ if (!brport) {
+ rtnl_unlock();
+ return -ENODEV;
+ }
+ err = call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE,
+ brport, &info.info, NULL);
+ rtnl_unlock();
+
+ return err;
+}