net: enetc: add support for "Add" and "Delete" operations to IPFT

The ingress port filter table (IPFT )contains a set of filters each
capable of classifying incoming traffic using a mix of L2, L3, and L4
parsed and arbitrary field data. As a result of a filter match, several
actions can be specified such as on whether to deny or allow a frame,
overriding internal QoS attributes associated with the frame and setting
parameters for the subsequent frame processing functions, such as stream
identification, policing, ingress mirroring. Each entry corresponds to a
filter. The ingress port filter entries are added using a precedence
value. If a frame matches multiple entries, the entry with the higher
precedence is used. Currently, this patch only adds "Add" and "Delete"
operations to the ingress port filter table. These two interfaces will
be used by both ENETC driver and NETC switch driver.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260518082506.1318236-8-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/include/linux/fsl/ntmp.h b/include/linux/fsl/ntmp.h
index 5fded868725f..88166f9ad3a2 100644
--- a/include/linux/fsl/ntmp.h
+++ b/include/linux/fsl/ntmp.h
@@ -7,6 +7,7 @@
 #include <linux/if_ether.h>
 
 #define NTMP_NULL_ENTRY_ID		0xffffffffU
+#define IPFT_MAX_PLD_LEN		24
 
 struct maft_keye_data {
 	u8 mac_addr[ETH_ALEN];
@@ -34,6 +35,7 @@ struct netc_tbl_vers {
 	u8 fdbt_ver;
 	u8 vft_ver;
 	u8 bpt_ver;
+	u8 ipft_ver;
 };
 
 struct netc_swcbd {
@@ -73,6 +75,94 @@ struct maft_entry_data {
 	struct maft_cfge_data cfge;
 };
 
+struct ipft_pld_byte {
+	u8 data;
+	u8 mask;
+};
+
+struct ipft_keye_data {
+	__le16 precedence;
+	__le16 resv0[3];
+	__le16 frm_attr_flags;
+#define IPFT_FAF_OVLAN		BIT(2)
+#define IPFT_FAF_IVLAN		BIT(3)
+#define IPFT_FAF_IP_HDR		BIT(7)
+#define IPFT_FAF_IP_VER6	BIT(8)
+#define IPFT_FAF_L4_CODE	GENMASK(11, 10)
+#define  IPFT_FAF_TCP_HDR	1
+#define  IPFT_FAF_UDP_HDR	2
+#define  IPFT_FAF_SCTP_HDR	3
+#define IPFT_FAF_WOL_MAGIC	BIT(12)
+	__le16 frm_attr_flags_mask;
+	__le16 dscp;
+#define IPFT_DSCP		GENMASK(5, 0)
+#define IPFT_DSCP_MASK		GENMASK(11, 6)
+#define IPFT_DSCP_MASK_ALL	0x3f
+	__le16 src_port; /* This field is reserved for ENETC */
+#define IPFT_SRC_PORT		GENMASK(4, 0)
+#define IPFT_SRC_PORT_MASK	GENMASK(9, 5)
+#define IPFT_SRC_PORT_MASK_ALL	0x1f
+	__be16 outer_vlan_tci;
+	__be16 outer_vlan_tci_mask;
+	u8 dmac[ETH_ALEN];
+	u8 dmac_mask[ETH_ALEN];
+	u8 smac[ETH_ALEN];
+	u8 smac_mask[ETH_ALEN];
+	__be16 inner_vlan_tci;
+	__be16 inner_vlan_tci_mask;
+	__be16 ethertype;
+	__be16 ethertype_mask;
+	u8 ip_protocol;
+	u8 ip_protocol_mask;
+	__le16 resv1[7];
+	__be32 ip_src[4];
+	__le32 resv2[2];
+	__be32 ip_src_mask[4];
+	__be16 l4_src_port;
+	__be16 l4_src_port_mask;
+	__le32 resv3;
+	__be32 ip_dst[4];
+	__le32 resv4[2];
+	__be32 ip_dst_mask[4];
+	__be16 l4_dst_port;
+	__be16 l4_dst_port_mask;
+	__le32 resv5;
+	struct ipft_pld_byte byte[IPFT_MAX_PLD_LEN];
+};
+
+struct ipft_cfge_data {
+	__le32 cfg;
+#define IPFT_IPV		GENMASK(3, 0)
+#define IPFT_OIPV		BIT(4)
+#define IPFT_DR			GENMASK(6, 5)
+#define IPFT_ODR		BIT(7)
+#define IPFT_FLTFA		GENMASK(10, 8)
+#define  IPFT_FLTFA_DISCARD	0
+#define  IPFT_FLTFA_PERMIT	1
+/* Redirect is only for switch */
+#define  IPFT_FLTFA_REDIRECT	2
+#define IPFT_IMIRE		BIT(11)
+#define IPFT_WOLTE		BIT(12)
+#define IPFT_FLTA		GENMASK(14, 13)
+#define  IPFT_FLTA_RP		1
+#define  IPFT_FLTA_IS		2
+#define  IPFT_FLTA_SI_BITMAP	3
+#define IPFT_RPR		GENMASK(16, 15)
+#define IPFT_CTD		BIT(17)
+#define IPFT_HR			GENMASK(21, 18)
+#define IPFT_TIMECAPE		BIT(22)
+#define IPFT_RRT		BIT(23)
+#define IPFT_BL2F		BIT(24)
+#define IPFT_EVMEID		GENMASK(31, 28)
+	__le32 flta_tgt;
+};
+
+struct ipft_entry_data {
+	u32 entry_id; /* hardware assigns entry ID */
+	struct ipft_keye_data keye;
+	struct ipft_cfge_data cfge;
+};
+
 struct fdbt_keye_data {
 	u8 mac_addr[ETH_ALEN]; /* big-endian */
 	__le16 resv0;
@@ -161,6 +251,9 @@ int ntmp_rsst_update_entry(struct ntmp_user *user, const u32 *table,
 			   int count);
 int ntmp_rsst_query_entry(struct ntmp_user *user,
 			  u32 *table, int count);
+int ntmp_ipft_add_entry(struct ntmp_user *user,
+			struct ipft_entry_data *entry);
+int ntmp_ipft_delete_entry(struct ntmp_user *user, u32 entry_id);
 int ntmp_fdbt_add_entry(struct ntmp_user *user, u32 *entry_id,
 			const struct fdbt_keye_data *keye,
 			const struct fdbt_cfge_data *cfge);