mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Wei FangandJakub Kicinski
84b4a3b30a
Implement the DSA .port_vlan_add and .port_vlan_del operations to enable VLAN-aware bridge offloading on the NETC switch. VLAN membership is maintained in the VLAN Filter Table (VFT). Adding the first port to a VLAN creates a new VFT entry with hardware MAC learning and flood-on-miss forwarding; subsequent ports update the existing entry's membership bitmap. Removing the last port deletes the entry. Egress tagging is handled through the Egress Treatment Table (ETT). Each VLAN is allocated a group of ETT entries, one per available port. Ports are assigned a sequential ett_offset during initialisation, used to address each port's entry within the group. Untagged ports configure the ETT to strip the outer VLAN tag; tagged ports pass frames through unmodified. Each ETT group is optionally paired with an Egress Counter Table (ECT) group for per-port frame counting, allocated on a best-effort basis. When the egress rule of an ETT entry changes, the counter of the corresponding ECT entry will be recounted to track the number of frames that match the new egress rule. A software shadow list serialised by vft_lock tracks active VLAN state across both port membership and egress tagging. VID 0 is used for single port mode and is ignored by both callbacks. Signed-off-by: Wei Fang <wei.fang@nxp.com> Link: https://patch.msgid.link/20260611021458.2629145-8-wei.fang@oss.nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
368 lines
9.0 KiB
C
368 lines
9.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/* Copyright 2025-2026 NXP */
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#ifndef __NETC_NTMP_H
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#define __NETC_NTMP_H
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#include <linux/bitmap.h>
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#include <linux/bitops.h>
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#include <linux/if_ether.h>
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#define NTMP_NULL_ENTRY_ID 0xffffffffU
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#define IPFT_MAX_PLD_LEN 24
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struct maft_keye_data {
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u8 mac_addr[ETH_ALEN];
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__le16 resv;
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};
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struct maft_cfge_data {
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__le16 si_bitmap;
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__le16 resv;
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};
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struct netc_cbdr_regs {
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void __iomem *pir;
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void __iomem *cir;
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void __iomem *mr;
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void __iomem *bar0;
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void __iomem *bar1;
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void __iomem *lenr;
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};
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struct netc_tbl_vers {
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u8 maft_ver;
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u8 rsst_ver;
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u8 fdbt_ver;
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u8 vft_ver;
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u8 bpt_ver;
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u8 ipft_ver;
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u8 ett_ver;
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u8 ect_ver;
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};
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struct netc_swcbd {
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void *buf;
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dma_addr_t dma;
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size_t size;
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};
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struct netc_cbdr {
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struct device *dev;
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struct netc_cbdr_regs regs;
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int bd_num;
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int next_to_use;
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int next_to_clean;
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int dma_size;
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void *addr_base;
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void *addr_base_align;
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dma_addr_t dma_base;
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dma_addr_t dma_base_align;
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struct netc_swcbd *swcbd;
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/* Serialize the order of command BD ring */
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struct mutex ring_lock;
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};
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struct ntmp_user {
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int cbdr_num; /* number of control BD ring */
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struct device *dev;
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struct netc_cbdr *ring;
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struct netc_tbl_vers tbl;
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/* NTMP table bitmaps for resource management */
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u32 ett_bitmap_size;
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u32 ect_bitmap_size;
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unsigned long *ett_gid_bitmap; /* only valid for switch */
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unsigned long *ect_gid_bitmap; /* only valid for switch */
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};
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struct maft_entry_data {
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struct maft_keye_data keye;
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struct maft_cfge_data cfge;
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};
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struct ipft_pld_byte {
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u8 data;
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u8 mask;
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};
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struct ipft_keye_data {
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__le16 precedence;
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__le16 resv0[3];
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__le16 frm_attr_flags;
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#define IPFT_FAF_OVLAN BIT(2)
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#define IPFT_FAF_IVLAN BIT(3)
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#define IPFT_FAF_IP_HDR BIT(7)
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#define IPFT_FAF_IP_VER6 BIT(8)
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#define IPFT_FAF_L4_CODE GENMASK(11, 10)
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#define IPFT_FAF_TCP_HDR 1
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#define IPFT_FAF_UDP_HDR 2
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#define IPFT_FAF_SCTP_HDR 3
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#define IPFT_FAF_WOL_MAGIC BIT(12)
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__le16 frm_attr_flags_mask;
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__le16 dscp;
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#define IPFT_DSCP GENMASK(5, 0)
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#define IPFT_DSCP_MASK GENMASK(11, 6)
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#define IPFT_DSCP_MASK_ALL 0x3f
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__le16 src_port; /* This field is reserved for ENETC */
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#define IPFT_SRC_PORT GENMASK(4, 0)
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#define IPFT_SRC_PORT_MASK GENMASK(9, 5)
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#define IPFT_SRC_PORT_MASK_ALL 0x1f
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__be16 outer_vlan_tci;
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__be16 outer_vlan_tci_mask;
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u8 dmac[ETH_ALEN];
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u8 dmac_mask[ETH_ALEN];
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u8 smac[ETH_ALEN];
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u8 smac_mask[ETH_ALEN];
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__be16 inner_vlan_tci;
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__be16 inner_vlan_tci_mask;
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__be16 ethertype;
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__be16 ethertype_mask;
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u8 ip_protocol;
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u8 ip_protocol_mask;
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__le16 resv1[7];
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__be32 ip_src[4];
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__le32 resv2[2];
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__be32 ip_src_mask[4];
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__be16 l4_src_port;
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__be16 l4_src_port_mask;
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__le32 resv3;
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__be32 ip_dst[4];
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__le32 resv4[2];
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__be32 ip_dst_mask[4];
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__be16 l4_dst_port;
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__be16 l4_dst_port_mask;
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__le32 resv5;
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struct ipft_pld_byte byte[IPFT_MAX_PLD_LEN];
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};
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struct ipft_cfge_data {
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__le32 cfg;
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#define IPFT_IPV GENMASK(3, 0)
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#define IPFT_OIPV BIT(4)
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#define IPFT_DR GENMASK(6, 5)
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#define IPFT_ODR BIT(7)
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#define IPFT_FLTFA GENMASK(10, 8)
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#define IPFT_FLTFA_DISCARD 0
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#define IPFT_FLTFA_PERMIT 1
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/* Redirect is only for switch */
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#define IPFT_FLTFA_REDIRECT 2
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#define IPFT_IMIRE BIT(11)
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#define IPFT_WOLTE BIT(12)
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#define IPFT_FLTA GENMASK(14, 13)
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#define IPFT_FLTA_RP 1
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#define IPFT_FLTA_IS 2
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#define IPFT_FLTA_SI_BITMAP 3
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#define IPFT_RPR GENMASK(16, 15)
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#define IPFT_CTD BIT(17)
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#define IPFT_HR GENMASK(21, 18)
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#define IPFT_TIMECAPE BIT(22)
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#define IPFT_RRT BIT(23)
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#define IPFT_BL2F BIT(24)
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#define IPFT_EVMEID GENMASK(31, 28)
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__le32 flta_tgt;
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};
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struct ipft_entry_data {
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u32 entry_id; /* hardware assigns entry ID */
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struct ipft_keye_data keye;
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struct ipft_cfge_data cfge;
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};
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struct fdbt_keye_data {
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u8 mac_addr[ETH_ALEN]; /* big-endian */
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__le16 resv0;
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__le16 fid;
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#define FDBT_FID GENMASK(11, 0)
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__le16 resv1;
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};
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struct fdbt_cfge_data {
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__le32 port_bitmap;
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#define FDBT_PORT_BITMAP GENMASK(23, 0)
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__le32 cfg;
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#define FDBT_OETEID GENMASK(1, 0)
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#define FDBT_EPORT GENMASK(6, 2)
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#define FDBT_IMIRE BIT(7)
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#define FDBT_CTD GENMASK(10, 9)
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#define FDBT_DYNAMIC BIT(11)
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#define FDBT_TIMECAPE BIT(12)
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__le32 et_eid;
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};
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struct fdbt_entry_data {
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u32 entry_id;
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struct fdbt_keye_data keye;
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struct fdbt_cfge_data cfge;
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u8 acte;
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#define FDBT_ACT_CNT GENMASK(6, 0)
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#define FDBT_ACT_FLAG BIT(7)
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};
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struct vft_cfge_data {
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__le32 bitmap_stg;
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#define VFT_PORT_MEMBERSHIP GENMASK(23, 0)
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#define VFT_STG_ID_MASK GENMASK(27, 24)
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#define VFT_STG_ID(g) FIELD_PREP(VFT_STG_ID_MASK, (g))
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__le16 fid;
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#define VFT_FID GENMASK(11, 0)
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__le16 cfg;
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#define VFT_MLO GENMASK(2, 0)
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#define VFT_MFO GENMASK(4, 3)
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#define VFT_IPMFE BIT(6)
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#define VFT_IPMFLE BIT(7)
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#define VFT_PGA BIT(8)
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#define VFT_SFDA BIT(10)
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#define VFT_OSFDA BIT(11)
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#define VFT_FDBAFSS BIT(12)
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__le32 eta_port_bitmap;
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#define VFT_ETA_PORT_BITMAP GENMASK(23, 0)
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__le32 et_eid;
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};
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struct ett_cfge_data {
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__le16 efm_cfg;
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#define ETT_EFM_MODE GENMASK(1, 0)
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#define ETT_ESQA GENMASK(5, 4)
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#define ETT_ECA GENMASK(8, 6)
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#define ETT_ECA_INC 1
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#define ETT_EFM_LEN_CHANGE GENMASK(15, 9)
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#define ETT_FRM_LEN_DEL_VLAN 0x7c
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#define ETT_FRM_LEN_DEL_RTAG 0x7a
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#define ETT_FRM_LEN_DEL_VLAN_RTAG 0x76
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__le16 efm_data_len;
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#define ETT_EFM_DATA_LEN GENMASK(10, 0)
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__le32 efm_eid;
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__le32 ec_eid;
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__le32 esqa_tgt_eid;
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};
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struct bpt_bpse_data {
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__le32 amount_used;
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__le32 amount_used_hwm;
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u8 bpd_fc_state;
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#define BPT_FC_STATE BIT(0)
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#define BPT_BPD BIT(1)
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} __packed;
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struct bpt_cfge_data {
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u8 fccfg_sbpen;
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#define BPT_FC_CFG GENMASK(2, 1)
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#define BPT_FC_CFG_EN_BPFC 1
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u8 pfc_vector;
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__le16 max_thresh;
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__le16 fc_on_thresh;
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__le16 fc_off_thresh;
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__le16 sbp_thresh;
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__le16 resv;
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__le32 sbp_eid;
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__le32 fc_ports;
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};
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union ntmp_fmt_eid {
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__le32 index;
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#define FMTEID_INDEX GENMASK(12, 0)
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__le32 vuda_sqta;
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#define FMTEID_VUDA GENMASK(1, 0)
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#define FMTEID_VUDA_DEL_OTAG 2
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#define FMTEID_SQTA GENMASK(4, 2)
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#define FMTEID_SQTA_DEL 2
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#define FMTEID_VUDA_SQTA BIT(13)
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__le32 vara_vid;
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#define FMTEID_VID GENMASK(11, 0)
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#define FMTEID_VARA GENMASK(13, 12)
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#define FMTEID_VARA_VID BIT(14)
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};
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#if IS_ENABLED(CONFIG_NXP_NETC_LIB)
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int ntmp_init_cbdr(struct netc_cbdr *cbdr, struct device *dev,
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const struct netc_cbdr_regs *regs);
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void ntmp_free_cbdr(struct netc_cbdr *cbdr);
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u32 ntmp_lookup_free_eid(unsigned long *bitmap, u32 size);
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void ntmp_clear_eid_bitmap(unsigned long *bitmap, u32 entry_id);
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/* NTMP APIs */
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int ntmp_maft_add_entry(struct ntmp_user *user, u32 entry_id,
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struct maft_entry_data *maft);
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int ntmp_maft_query_entry(struct ntmp_user *user, u32 entry_id,
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struct maft_entry_data *maft);
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int ntmp_maft_delete_entry(struct ntmp_user *user, u32 entry_id);
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int ntmp_rsst_update_entry(struct ntmp_user *user, const u32 *table,
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int count);
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int ntmp_rsst_query_entry(struct ntmp_user *user,
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u32 *table, int count);
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int ntmp_ipft_add_entry(struct ntmp_user *user,
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struct ipft_entry_data *entry);
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int ntmp_ipft_delete_entry(struct ntmp_user *user, u32 entry_id);
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int ntmp_fdbt_add_entry(struct ntmp_user *user, u32 *entry_id,
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const struct fdbt_keye_data *keye,
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const struct fdbt_cfge_data *cfge);
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int ntmp_fdbt_update_entry(struct ntmp_user *user, u32 entry_id,
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const struct fdbt_cfge_data *cfge);
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int ntmp_fdbt_delete_entry(struct ntmp_user *user, u32 entry_id);
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int ntmp_fdbt_search_port_entry(struct ntmp_user *user, int port,
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u32 *resume_entry_id,
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struct fdbt_entry_data *entry);
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int ntmp_fdbt_update_activity_element(struct ntmp_user *user);
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int ntmp_fdbt_delete_ageing_entries(struct ntmp_user *user, u8 act_cnt);
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int ntmp_fdbt_delete_port_dynamic_entries(struct ntmp_user *user, int port);
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int ntmp_vft_add_entry(struct ntmp_user *user, u16 vid,
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const struct vft_cfge_data *cfge);
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int ntmp_vft_update_entry(struct ntmp_user *user, u16 vid,
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const struct vft_cfge_data *cfge);
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int ntmp_vft_delete_entry(struct ntmp_user *user, u16 vid);
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int ntmp_ett_add_entry(struct ntmp_user *user, u32 entry_id,
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const struct ett_cfge_data *cfge);
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int ntmp_ett_update_entry(struct ntmp_user *user, u32 entry_id,
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const struct ett_cfge_data *cfge);
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int ntmp_ett_delete_entry(struct ntmp_user *user, u32 entry_id);
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int ntmp_ect_update_entry(struct ntmp_user *user, u32 entry_id);
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int ntmp_bpt_update_entry(struct ntmp_user *user, u32 entry_id,
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const struct bpt_cfge_data *cfge);
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#else
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static inline int ntmp_init_cbdr(struct netc_cbdr *cbdr, struct device *dev,
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const struct netc_cbdr_regs *regs)
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{
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return 0;
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}
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static inline void ntmp_free_cbdr(struct netc_cbdr *cbdr)
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{
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}
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static inline int ntmp_maft_add_entry(struct ntmp_user *user, u32 entry_id,
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struct maft_entry_data *maft)
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{
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return 0;
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}
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static inline int ntmp_maft_query_entry(struct ntmp_user *user, u32 entry_id,
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struct maft_entry_data *maft)
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{
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return 0;
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}
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static inline int ntmp_maft_delete_entry(struct ntmp_user *user, u32 entry_id)
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{
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return 0;
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}
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static inline int ntmp_rsst_update_entry(struct ntmp_user *user,
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const u32 *table, int count)
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{
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return 0;
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}
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static inline int ntmp_rsst_query_entry(struct ntmp_user *user,
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u32 *table, int count)
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{
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return 0;
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}
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#endif
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#endif
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