Thread (32 messages) 32 messages, 2 authors, 2022-01-07

[net-next PATCH RFC v6 09/16] net: dsa: tag_qca: add define for handling MIB packet

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STALE1733d

From: Ansuel Smith <ansuelsmth@gmail.com>
Date: 2021-12-14 22:45:21
Also in: lkml
Subsystem: networking [dsa], networking [general], qualcomm atheros qca8k dsa switch driver, the rest · Maintainers: Andrew Lunn, Vladimir Oltean, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Christian Marangi, Linus Torvalds

Revision v6 of 7 in this series.

Revisions (7)
  1. v3 [diff vs current]
  2. v3 [diff vs current]
  3. v4 [diff vs current]
  4. v5 [diff vs current]
  5. v6 current
  6. v7 [diff vs current]
  7. v8 [diff vs current]
Add struct to correctly parse a mib Ethernet packet.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
 include/linux/dsa/tag_qca.h | 10 ++++++++++
 net/dsa/tag_qca.c           |  4 ++++
 2 files changed, 14 insertions(+)
diff --git a/include/linux/dsa/tag_qca.h b/include/linux/dsa/tag_qca.h
index 21cd0db5acc2..cd6275bac103 100644
--- a/include/linux/dsa/tag_qca.h
+++ b/include/linux/dsa/tag_qca.h
@@ -59,4 +59,14 @@ struct mdio_ethhdr {
 	__be16 hdr;		/* qca hdr */
 } __packed;
 
+enum mdio_cmd {
+	MDIO_WRITE = 0x0,
+	MDIO_READ
+};
+
+struct mib_ethhdr {
+	u32 data[3];		/* first 3 mib counter */
+	__be16 hdr;		/* qca hdr */
+} __packed;
+
 #endif /* __TAG_QCA_H */
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index d30249b5205d..f5547d357647 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -55,6 +55,10 @@ static struct sk_buff *qca_tag_rcv(struct sk_buff *skb, struct net_device *dev)
 	if (pk_type == QCA_HDR_RECV_TYPE_RW_REG_ACK)
 		return NULL;
 
+	/* Ethernet MIB counter packet */
+	if (pk_type == QCA_HDR_RECV_TYPE_MIB)
+		return NULL;
+
 	/* Remove QCA tag and recalculate checksum */
 	skb_pull_rcsum(skb, QCA_HDR_LEN);
 	dsa_strip_etype_header(skb, QCA_HDR_LEN);
-- 
2.33.1
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