diff mbox series

[net-next,v5,3/6] net: dsa: Introduce dsa tagger data operation.

Message ID 20220907072950.2329571-4-mattias.forsblad@gmail.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: dsa: qca8k, mv88e6xxx: rmon: Add RMU support | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 20 this patch: 20
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang success Errors and warnings before: 13 this patch: 13
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 20 this patch: 20
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 74 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Mattias Forsblad Sept. 7, 2022, 7:29 a.m. UTC 
Support connecting dsa tagger for frame2reg decoding
with it's associated hookup functions.

Signed-off-by: Mattias Forsblad <mattias.forsblad@gmail.com>
---
 include/net/dsa.h |  5 +++++
 net/dsa/tag_dsa.c | 32 +++++++++++++++++++++++++++++---
 2 files changed, 34 insertions(+), 3 deletions(-)

Comments

Andrew Lunn Sept. 7, 2022, 9:35 p.m. UTC | #1 
On Wed, Sep 07, 2022 at 09:29:47AM +0200, Mattias Forsblad wrote:
> Support connecting dsa tagger for frame2reg decoding
> with it's associated hookup functions.
> 
> Signed-off-by: Mattias Forsblad <mattias.forsblad@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
diff mbox series

Patch

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 0e8a7ef17490..8510267d6188 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -130,6 +130,11 @@  struct dsa_lag {
 	refcount_t refcount;
 };
 
+struct dsa_tagger_data {
+	void (*decode_frame2reg)(struct net_device *netdev,
+				 struct sk_buff *skb);
+};
+
 struct dsa_switch_tree {
 	struct list_head	list;
 
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index e4b6e3f2a3db..3dd1dcddaf05 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -198,7 +198,10 @@  static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev,
 static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev,
 				  u8 extra)
 {
+	struct dsa_tagger_data *tagger_data;
+	struct dsa_port *dp = dev->dsa_ptr;
 	bool trap = false, trunk = false;
+	struct dsa_switch *ds = dp->ds;
 	int source_device, source_port;
 	enum dsa_code code;
 	enum dsa_cmd cmd;
@@ -218,9 +221,9 @@  static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev,
 
 		switch (code) {
 		case DSA_CODE_FRAME2REG:
-			/* Remote management is not implemented yet,
-			 * drop.
-			 */
+			tagger_data = ds->tagger_data;
+			if (likely(tagger_data->decode_frame2reg))
+				tagger_data->decode_frame2reg(dev, skb);
 			return NULL;
 		case DSA_CODE_ARP_MIRROR:
 		case DSA_CODE_POLICY_MIRROR:
@@ -323,6 +326,25 @@  static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev,
 	return skb;
 }
 
+static int dsa_tag_connect(struct dsa_switch *ds)
+{
+	struct dsa_tagger_data *tagger_data;
+
+	tagger_data = kzalloc(sizeof(*tagger_data), GFP_KERNEL);
+	if (!tagger_data)
+		return -ENOMEM;
+
+	ds->tagger_data = tagger_data;
+
+	return 0;
+}
+
+static void dsa_tag_disconnect(struct dsa_switch *ds)
+{
+	kfree(ds->tagger_data);
+	ds->tagger_data = NULL;
+}
+
 #if IS_ENABLED(CONFIG_NET_DSA_TAG_DSA)
 
 static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev)
@@ -343,6 +365,8 @@  static const struct dsa_device_ops dsa_netdev_ops = {
 	.proto	  = DSA_TAG_PROTO_DSA,
 	.xmit	  = dsa_xmit,
 	.rcv	  = dsa_rcv,
+	.connect  = dsa_tag_connect,
+	.disconnect = dsa_tag_disconnect,
 	.needed_headroom = DSA_HLEN,
 };
 
@@ -385,6 +409,8 @@  static const struct dsa_device_ops edsa_netdev_ops = {
 	.proto	  = DSA_TAG_PROTO_EDSA,
 	.xmit	  = edsa_xmit,
 	.rcv	  = edsa_rcv,
+	.connect  = dsa_tag_connect,
+	.disconnect = dsa_tag_disconnect,
 	.needed_headroom = EDSA_HLEN,
 };