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linux/include/soc/mscc/ocelot_vcap.h
Vladimir Oltean 36dd1141be net: mscc: ocelot: treat 802.1ad tagged traffic as 802.1Q-untagged 
I was revisiting the topic of 802.1ad treatment in the Ocelot switch [0]
and realized that not only is its basic VLAN classification pipeline
improper for offloading vlan_protocol 802.1ad bridges, but also improper
for offloading regular 802.1Q bridges already.

Namely, 802.1ad-tagged traffic should be treated as VLAN-untagged by
bridged ports, but this switch treats it as if it was 802.1Q-tagged with
the same VID as in the 802.1ad header. This is markedly different to
what the Linux bridge expects; see the "other_tpid()" function in
tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh.

An idea came to me that the VCAP IS1 TCAM is more powerful than I'm
giving it credit for, and that it actually overwrites the classified VID
before the VLAN Table lookup takes place. In other words, it can be
used even to save a packet from being dropped on ingress due to VLAN
membership.

Add a sophisticated TCAM rule hardcoded into the driver to force the
switch to behave like a Linux bridge with vlan_filtering 1 vlan_protocol
802.1Q.

Regarding the lifetime of the filter: eventually the bridge will
disappear, and vlan_filtering on the port will be restored to 0 for
standalone mode. Then the filter will be deleted.

[0]: https://lore.kernel.org/netdev/20201009122947.nvhye4hvcha3tljh@skbuf/

Fixes: 7142529f16 ("net: mscc: ocelot: add VLAN filtering")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-16 09:59:32 +01:00

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/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
* Microsemi Ocelot Switch driver
* Copyright (c) 2019 Microsemi Corporation
*/
#ifndef _OCELOT_VCAP_H_
#define _OCELOT_VCAP_H_
#include <soc/mscc/ocelot.h>
/* Cookie definitions for private VCAP filters installed by the driver.
* Must be unique per VCAP block.
*/
#define OCELOT_VCAP_ES0_TAG_8021Q_RXVLAN(ocelot, port, upstream) ((upstream) << 16 | (port))
#define OCELOT_VCAP_IS1_TAG_8021Q_TXVLAN(ocelot, port) (port)
#define OCELOT_VCAP_IS1_VLAN_RECLASSIFY(ocelot, port) ((ocelot)->num_phys_ports + (port))
#define OCELOT_VCAP_IS2_TAG_8021Q_TXVLAN(ocelot, port) (port)
#define OCELOT_VCAP_IS2_MRP_REDIRECT(ocelot, port) ((ocelot)->num_phys_ports + (port))
#define OCELOT_VCAP_IS2_MRP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2)
#define OCELOT_VCAP_IS2_L2_PTP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2 + 1)
#define OCELOT_VCAP_IS2_IPV4_GEN_PTP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2 + 2)
#define OCELOT_VCAP_IS2_IPV4_EV_PTP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2 + 3)
#define OCELOT_VCAP_IS2_IPV6_GEN_PTP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2 + 4)
#define OCELOT_VCAP_IS2_IPV6_EV_PTP_TRAP(ocelot) ((ocelot)->num_phys_ports * 2 + 5)
/* =================================================================
* VCAP Common
* =================================================================
*/
enum {
VCAP_ES0,
VCAP_IS1,
VCAP_IS2,
__VCAP_COUNT,
};
#define OCELOT_NUM_VCAP_BLOCKS __VCAP_COUNT
struct vcap_props {
u16 tg_width; /* Type-group width (in bits) */
u16 sw_count; /* Sub word count */
u16 entry_count; /* Entry count */
u16 entry_words; /* Number of entry words */
u16 entry_width; /* Entry width (in bits) */
u16 action_count; /* Action count */
u16 action_words; /* Number of action words */
u16 action_width; /* Action width (in bits) */
u16 action_type_width; /* Action type width (in bits) */
struct {
u16 width; /* Action type width (in bits) */
u16 count; /* Action type sub word count */
} action_table[2];
u16 counter_words; /* Number of counter words */
u16 counter_width; /* Counter width (in bits) */
enum ocelot_target target;
const struct vcap_field *keys;
const struct vcap_field *actions;
};
/* VCAP Type-Group values */
#define VCAP_TG_NONE 0 /* Entry is invalid */
#define VCAP_TG_FULL 1 /* Full entry */
#define VCAP_TG_HALF 2 /* Half entry */
#define VCAP_TG_QUARTER 3 /* Quarter entry */
#define VCAP_CORE_UPDATE_CTRL_UPDATE_CMD(x) (((x) << 22) & GENMASK(24, 22))
#define VCAP_CORE_UPDATE_CTRL_UPDATE_CMD_M GENMASK(24, 22)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_CMD_X(x) (((x) & GENMASK(24, 22)) >> 22)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_ENTRY_DIS BIT(21)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_ACTION_DIS BIT(20)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_CNT_DIS BIT(19)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_ADDR(x) (((x) << 3) & GENMASK(18, 3))
#define VCAP_CORE_UPDATE_CTRL_UPDATE_ADDR_M GENMASK(18, 3)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_ADDR_X(x) (((x) & GENMASK(18, 3)) >> 3)
#define VCAP_CORE_UPDATE_CTRL_UPDATE_SHOT BIT(2)
#define VCAP_CORE_UPDATE_CTRL_CLEAR_CACHE BIT(1)
#define VCAP_CORE_UPDATE_CTRL_MV_TRAFFIC_IGN BIT(0)
#define VCAP_CORE_MV_CFG_MV_NUM_POS(x) (((x) << 16) & GENMASK(31, 16))
#define VCAP_CORE_MV_CFG_MV_NUM_POS_M GENMASK(31, 16)
#define VCAP_CORE_MV_CFG_MV_NUM_POS_X(x) (((x) & GENMASK(31, 16)) >> 16)
#define VCAP_CORE_MV_CFG_MV_SIZE(x) ((x) & GENMASK(15, 0))
#define VCAP_CORE_MV_CFG_MV_SIZE_M GENMASK(15, 0)
#define VCAP_CACHE_ENTRY_DAT_RSZ 0x4
#define VCAP_CACHE_MASK_DAT_RSZ 0x4
#define VCAP_CACHE_ACTION_DAT_RSZ 0x4
#define VCAP_CACHE_CNT_DAT_RSZ 0x4
#define VCAP_STICKY_VCAP_ROW_DELETED_STICKY BIT(0)
#define TCAM_BIST_CTRL_TCAM_BIST BIT(1)
#define TCAM_BIST_CTRL_TCAM_INIT BIT(0)
#define TCAM_BIST_CFG_TCAM_BIST_SOE_ENA BIT(8)
#define TCAM_BIST_CFG_TCAM_HCG_DIS BIT(7)
#define TCAM_BIST_CFG_TCAM_CG_DIS BIT(6)
#define TCAM_BIST_CFG_TCAM_BIAS(x) ((x) & GENMASK(5, 0))
#define TCAM_BIST_CFG_TCAM_BIAS_M GENMASK(5, 0)
#define TCAM_BIST_STAT_BIST_RT_ERR BIT(15)
#define TCAM_BIST_STAT_BIST_PENC_ERR BIT(14)
#define TCAM_BIST_STAT_BIST_COMP_ERR BIT(13)
#define TCAM_BIST_STAT_BIST_ADDR_ERR BIT(12)
#define TCAM_BIST_STAT_BIST_BL1E_ERR BIT(11)
#define TCAM_BIST_STAT_BIST_BL1_ERR BIT(10)
#define TCAM_BIST_STAT_BIST_BL0E_ERR BIT(9)
#define TCAM_BIST_STAT_BIST_BL0_ERR BIT(8)
#define TCAM_BIST_STAT_BIST_PH1_ERR BIT(7)
#define TCAM_BIST_STAT_BIST_PH0_ERR BIT(6)
#define TCAM_BIST_STAT_BIST_PV1_ERR BIT(5)
#define TCAM_BIST_STAT_BIST_PV0_ERR BIT(4)
#define TCAM_BIST_STAT_BIST_RUN BIT(3)
#define TCAM_BIST_STAT_BIST_ERR BIT(2)
#define TCAM_BIST_STAT_BIST_BUSY BIT(1)
#define TCAM_BIST_STAT_TCAM_RDY BIT(0)
/* =================================================================
* VCAP IS2
* =================================================================
*/
/* IS2 half key types */
#define IS2_TYPE_ETYPE 0
#define IS2_TYPE_LLC 1
#define IS2_TYPE_SNAP 2
#define IS2_TYPE_ARP 3
#define IS2_TYPE_IP_UDP_TCP 4
#define IS2_TYPE_IP_OTHER 5
#define IS2_TYPE_IPV6 6
#define IS2_TYPE_OAM 7
#define IS2_TYPE_SMAC_SIP6 8
#define IS2_TYPE_ANY 100 /* Pseudo type */
/* IS2 half key type mask for matching any IP */
#define IS2_TYPE_MASK_IP_ANY 0xe
enum {
IS2_ACTION_TYPE_NORMAL,
IS2_ACTION_TYPE_SMAC_SIP,
IS2_ACTION_TYPE_MAX,
};
/* IS2 MASK_MODE values */
#define IS2_ACT_MASK_MODE_NONE 0
#define IS2_ACT_MASK_MODE_FILTER 1
#define IS2_ACT_MASK_MODE_POLICY 2
#define IS2_ACT_MASK_MODE_REDIR 3
/* IS2 REW_OP values */
#define IS2_ACT_REW_OP_NONE 0
#define IS2_ACT_REW_OP_PTP_ONE 2
#define IS2_ACT_REW_OP_PTP_TWO 3
#define IS2_ACT_REW_OP_SPECIAL 8
#define IS2_ACT_REW_OP_PTP_ORG 9
#define IS2_ACT_REW_OP_PTP_ONE_SUB_DELAY_1 (IS2_ACT_REW_OP_PTP_ONE | (1 << 3))
#define IS2_ACT_REW_OP_PTP_ONE_SUB_DELAY_2 (IS2_ACT_REW_OP_PTP_ONE | (2 << 3))
#define IS2_ACT_REW_OP_PTP_ONE_ADD_DELAY (IS2_ACT_REW_OP_PTP_ONE | (1 << 5))
#define IS2_ACT_REW_OP_PTP_ONE_ADD_SUB BIT(7)
#define VCAP_PORT_WIDTH 4
/* IS2 quarter key - SMAC_SIP4 */
#define IS2_QKO_IGR_PORT 0
#define IS2_QKL_IGR_PORT VCAP_PORT_WIDTH
#define IS2_QKO_L2_SMAC (IS2_QKO_IGR_PORT + IS2_QKL_IGR_PORT)
#define IS2_QKL_L2_SMAC 48
#define IS2_QKO_L3_IP4_SIP (IS2_QKO_L2_SMAC + IS2_QKL_L2_SMAC)
#define IS2_QKL_L3_IP4_SIP 32
enum vcap_is2_half_key_field {
/* Common */
VCAP_IS2_TYPE,
VCAP_IS2_HK_FIRST,
VCAP_IS2_HK_PAG,
VCAP_IS2_HK_RSV1,
VCAP_IS2_HK_IGR_PORT_MASK,
VCAP_IS2_HK_RSV2,
VCAP_IS2_HK_HOST_MATCH,
VCAP_IS2_HK_L2_MC,
VCAP_IS2_HK_L2_BC,
VCAP_IS2_HK_VLAN_TAGGED,
VCAP_IS2_HK_VID,
VCAP_IS2_HK_DEI,
VCAP_IS2_HK_PCP,
/* MAC_ETYPE / MAC_LLC / MAC_SNAP / OAM common */
VCAP_IS2_HK_L2_DMAC,
VCAP_IS2_HK_L2_SMAC,
/* MAC_ETYPE (TYPE=000) */
VCAP_IS2_HK_MAC_ETYPE_ETYPE,
VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD0,
VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD1,
VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD2,
/* MAC_LLC (TYPE=001) */
VCAP_IS2_HK_MAC_LLC_DMAC,
VCAP_IS2_HK_MAC_LLC_SMAC,
VCAP_IS2_HK_MAC_LLC_L2_LLC,
/* MAC_SNAP (TYPE=010) */
VCAP_IS2_HK_MAC_SNAP_SMAC,
VCAP_IS2_HK_MAC_SNAP_DMAC,
VCAP_IS2_HK_MAC_SNAP_L2_SNAP,
/* MAC_ARP (TYPE=011) */
VCAP_IS2_HK_MAC_ARP_SMAC,
VCAP_IS2_HK_MAC_ARP_ADDR_SPACE_OK,
VCAP_IS2_HK_MAC_ARP_PROTO_SPACE_OK,
VCAP_IS2_HK_MAC_ARP_LEN_OK,
VCAP_IS2_HK_MAC_ARP_TARGET_MATCH,
VCAP_IS2_HK_MAC_ARP_SENDER_MATCH,
VCAP_IS2_HK_MAC_ARP_OPCODE_UNKNOWN,
VCAP_IS2_HK_MAC_ARP_OPCODE,
VCAP_IS2_HK_MAC_ARP_L3_IP4_DIP,
VCAP_IS2_HK_MAC_ARP_L3_IP4_SIP,
VCAP_IS2_HK_MAC_ARP_DIP_EQ_SIP,
/* IP4_TCP_UDP / IP4_OTHER common */
VCAP_IS2_HK_IP4,
VCAP_IS2_HK_L3_FRAGMENT,
VCAP_IS2_HK_L3_FRAG_OFS_GT0,
VCAP_IS2_HK_L3_OPTIONS,
VCAP_IS2_HK_IP4_L3_TTL_GT0,
VCAP_IS2_HK_L3_TOS,
VCAP_IS2_HK_L3_IP4_DIP,
VCAP_IS2_HK_L3_IP4_SIP,
VCAP_IS2_HK_DIP_EQ_SIP,
/* IP4_TCP_UDP (TYPE=100) */
VCAP_IS2_HK_TCP,
VCAP_IS2_HK_L4_SPORT,
VCAP_IS2_HK_L4_DPORT,
VCAP_IS2_HK_L4_RNG,
VCAP_IS2_HK_L4_SPORT_EQ_DPORT,
VCAP_IS2_HK_L4_SEQUENCE_EQ0,
VCAP_IS2_HK_L4_URG,
VCAP_IS2_HK_L4_ACK,
VCAP_IS2_HK_L4_PSH,
VCAP_IS2_HK_L4_RST,
VCAP_IS2_HK_L4_SYN,
VCAP_IS2_HK_L4_FIN,
VCAP_IS2_HK_L4_1588_DOM,
VCAP_IS2_HK_L4_1588_VER,
/* IP4_OTHER (TYPE=101) */
VCAP_IS2_HK_IP4_L3_PROTO,
VCAP_IS2_HK_L3_PAYLOAD,
/* IP6_STD (TYPE=110) */
VCAP_IS2_HK_IP6_L3_TTL_GT0,
VCAP_IS2_HK_IP6_L3_PROTO,
VCAP_IS2_HK_L3_IP6_SIP,
/* OAM (TYPE=111) */
VCAP_IS2_HK_OAM_MEL_FLAGS,
VCAP_IS2_HK_OAM_VER,
VCAP_IS2_HK_OAM_OPCODE,
VCAP_IS2_HK_OAM_FLAGS,
VCAP_IS2_HK_OAM_MEPID,
VCAP_IS2_HK_OAM_CCM_CNTS_EQ0,
VCAP_IS2_HK_OAM_IS_Y1731,
};
struct vcap_field {
int offset;
int length;
};
enum vcap_is2_action_field {
VCAP_IS2_ACT_HIT_ME_ONCE,
VCAP_IS2_ACT_CPU_COPY_ENA,
VCAP_IS2_ACT_CPU_QU_NUM,
VCAP_IS2_ACT_MASK_MODE,
VCAP_IS2_ACT_MIRROR_ENA,
VCAP_IS2_ACT_LRN_DIS,
VCAP_IS2_ACT_POLICE_ENA,
VCAP_IS2_ACT_POLICE_IDX,
VCAP_IS2_ACT_POLICE_VCAP_ONLY,
VCAP_IS2_ACT_PORT_MASK,
VCAP_IS2_ACT_REW_OP,
VCAP_IS2_ACT_SMAC_REPLACE_ENA,
VCAP_IS2_ACT_RSV,
VCAP_IS2_ACT_ACL_ID,
VCAP_IS2_ACT_HIT_CNT,
};
/* =================================================================
* VCAP IS1
* =================================================================
*/
/* IS1 half key types */
#define IS1_TYPE_S1_NORMAL 0
#define IS1_TYPE_S1_5TUPLE_IP4 1
/* IS1 full key types */
#define IS1_TYPE_S1_NORMAL_IP6 0
#define IS1_TYPE_S1_7TUPLE 1
#define IS2_TYPE_S1_5TUPLE_IP6 2
enum {
IS1_ACTION_TYPE_NORMAL,
IS1_ACTION_TYPE_MAX,
};
enum vcap_is1_half_key_field {
VCAP_IS1_HK_TYPE,
VCAP_IS1_HK_LOOKUP,
VCAP_IS1_HK_IGR_PORT_MASK,
VCAP_IS1_HK_RSV,
VCAP_IS1_HK_OAM_Y1731,
VCAP_IS1_HK_L2_MC,
VCAP_IS1_HK_L2_BC,
VCAP_IS1_HK_IP_MC,
VCAP_IS1_HK_VLAN_TAGGED,
VCAP_IS1_HK_VLAN_DBL_TAGGED,
VCAP_IS1_HK_TPID,
VCAP_IS1_HK_VID,
VCAP_IS1_HK_DEI,
VCAP_IS1_HK_PCP,
/* Specific Fields for IS1 Half Key S1_NORMAL */
VCAP_IS1_HK_L2_SMAC,
VCAP_IS1_HK_ETYPE_LEN,
VCAP_IS1_HK_ETYPE,
VCAP_IS1_HK_IP_SNAP,
VCAP_IS1_HK_IP4,
VCAP_IS1_HK_L3_FRAGMENT,
VCAP_IS1_HK_L3_FRAG_OFS_GT0,
VCAP_IS1_HK_L3_OPTIONS,
VCAP_IS1_HK_L3_DSCP,
VCAP_IS1_HK_L3_IP4_SIP,
VCAP_IS1_HK_TCP_UDP,
VCAP_IS1_HK_TCP,
VCAP_IS1_HK_L4_SPORT,
VCAP_IS1_HK_L4_RNG,
/* Specific Fields for IS1 Half Key S1_5TUPLE_IP4 */
VCAP_IS1_HK_IP4_INNER_TPID,
VCAP_IS1_HK_IP4_INNER_VID,
VCAP_IS1_HK_IP4_INNER_DEI,
VCAP_IS1_HK_IP4_INNER_PCP,
VCAP_IS1_HK_IP4_IP4,
VCAP_IS1_HK_IP4_L3_FRAGMENT,
VCAP_IS1_HK_IP4_L3_FRAG_OFS_GT0,
VCAP_IS1_HK_IP4_L3_OPTIONS,
VCAP_IS1_HK_IP4_L3_DSCP,
VCAP_IS1_HK_IP4_L3_IP4_DIP,
VCAP_IS1_HK_IP4_L3_IP4_SIP,
VCAP_IS1_HK_IP4_L3_PROTO,
VCAP_IS1_HK_IP4_TCP_UDP,
VCAP_IS1_HK_IP4_TCP,
VCAP_IS1_HK_IP4_L4_RNG,
VCAP_IS1_HK_IP4_IP_PAYLOAD_S1_5TUPLE,
};
enum vcap_is1_action_field {
VCAP_IS1_ACT_DSCP_ENA,
VCAP_IS1_ACT_DSCP_VAL,
VCAP_IS1_ACT_QOS_ENA,
VCAP_IS1_ACT_QOS_VAL,
VCAP_IS1_ACT_DP_ENA,
VCAP_IS1_ACT_DP_VAL,
VCAP_IS1_ACT_PAG_OVERRIDE_MASK,
VCAP_IS1_ACT_PAG_VAL,
VCAP_IS1_ACT_RSV,
VCAP_IS1_ACT_VID_REPLACE_ENA,
VCAP_IS1_ACT_VID_ADD_VAL,
VCAP_IS1_ACT_FID_SEL,
VCAP_IS1_ACT_FID_VAL,
VCAP_IS1_ACT_PCP_DEI_ENA,
VCAP_IS1_ACT_PCP_VAL,
VCAP_IS1_ACT_DEI_VAL,
VCAP_IS1_ACT_VLAN_POP_CNT_ENA,
VCAP_IS1_ACT_VLAN_POP_CNT,
VCAP_IS1_ACT_CUSTOM_ACE_TYPE_ENA,
VCAP_IS1_ACT_HIT_STICKY,
};
/* =================================================================
* VCAP ES0
* =================================================================
*/
enum {
ES0_ACTION_TYPE_NORMAL,
ES0_ACTION_TYPE_MAX,
};
enum vcap_es0_key_field {
VCAP_ES0_EGR_PORT,
VCAP_ES0_IGR_PORT,
VCAP_ES0_RSV,
VCAP_ES0_L2_MC,
VCAP_ES0_L2_BC,
VCAP_ES0_VID,
VCAP_ES0_DP,
VCAP_ES0_PCP,
};
enum vcap_es0_action_field {
VCAP_ES0_ACT_PUSH_OUTER_TAG,
VCAP_ES0_ACT_PUSH_INNER_TAG,
VCAP_ES0_ACT_TAG_A_TPID_SEL,
VCAP_ES0_ACT_TAG_A_VID_SEL,
VCAP_ES0_ACT_TAG_A_PCP_SEL,
VCAP_ES0_ACT_TAG_A_DEI_SEL,
VCAP_ES0_ACT_TAG_B_TPID_SEL,
VCAP_ES0_ACT_TAG_B_VID_SEL,
VCAP_ES0_ACT_TAG_B_PCP_SEL,
VCAP_ES0_ACT_TAG_B_DEI_SEL,
VCAP_ES0_ACT_VID_A_VAL,
VCAP_ES0_ACT_PCP_A_VAL,
VCAP_ES0_ACT_DEI_A_VAL,
VCAP_ES0_ACT_VID_B_VAL,
VCAP_ES0_ACT_PCP_B_VAL,
VCAP_ES0_ACT_DEI_B_VAL,
VCAP_ES0_ACT_RSV,
VCAP_ES0_ACT_HIT_STICKY,
};
struct ocelot_ipv4 {
u8 addr[4];
};
enum ocelot_vcap_bit {
OCELOT_VCAP_BIT_ANY,
OCELOT_VCAP_BIT_0,
OCELOT_VCAP_BIT_1
};
struct ocelot_vcap_u8 {
u8 value[1];
u8 mask[1];
};
struct ocelot_vcap_u16 {
u8 value[2];
u8 mask[2];
};
struct ocelot_vcap_u24 {
u8 value[3];
u8 mask[3];
};
struct ocelot_vcap_u32 {
u8 value[4];
u8 mask[4];
};
struct ocelot_vcap_u40 {
u8 value[5];
u8 mask[5];
};
struct ocelot_vcap_u48 {
u8 value[6];
u8 mask[6];
};
struct ocelot_vcap_u64 {
u8 value[8];
u8 mask[8];
};
struct ocelot_vcap_u128 {
u8 value[16];
u8 mask[16];
};
struct ocelot_vcap_vid {
u16 value;
u16 mask;
};
struct ocelot_vcap_ipv4 {
struct ocelot_ipv4 value;
struct ocelot_ipv4 mask;
};
struct ocelot_vcap_udp_tcp {
u16 value;
u16 mask;
};
struct ocelot_vcap_port {
u8 value;
u8 mask;
};
enum ocelot_vcap_key_type {
OCELOT_VCAP_KEY_ANY,
OCELOT_VCAP_KEY_ETYPE,
OCELOT_VCAP_KEY_LLC,
OCELOT_VCAP_KEY_SNAP,
OCELOT_VCAP_KEY_ARP,
OCELOT_VCAP_KEY_IPV4,
OCELOT_VCAP_KEY_IPV6
};
struct ocelot_vcap_key_vlan {
struct ocelot_vcap_vid vid; /* VLAN ID (12 bit) */
struct ocelot_vcap_u8 pcp; /* PCP (3 bit) */
enum ocelot_vcap_bit dei; /* DEI */
enum ocelot_vcap_bit tagged; /* Tagged/untagged frame */
enum ocelot_vcap_bit tpid;
};
struct ocelot_vcap_key_etype {
struct ocelot_vcap_u48 dmac;
struct ocelot_vcap_u48 smac;
struct ocelot_vcap_u16 etype;
struct ocelot_vcap_u16 data; /* MAC data */
};
struct ocelot_vcap_key_llc {
struct ocelot_vcap_u48 dmac;
struct ocelot_vcap_u48 smac;
/* LLC header: DSAP at byte 0, SSAP at byte 1, Control at byte 2 */
struct ocelot_vcap_u32 llc;
};
struct ocelot_vcap_key_snap {
struct ocelot_vcap_u48 dmac;
struct ocelot_vcap_u48 smac;
/* SNAP header: Organization Code at byte 0, Type at byte 3 */
struct ocelot_vcap_u40 snap;
};
struct ocelot_vcap_key_arp {
struct ocelot_vcap_u48 smac;
enum ocelot_vcap_bit arp; /* Opcode ARP/RARP */
enum ocelot_vcap_bit req; /* Opcode request/reply */
enum ocelot_vcap_bit unknown; /* Opcode unknown */
enum ocelot_vcap_bit smac_match; /* Sender MAC matches SMAC */
enum ocelot_vcap_bit dmac_match; /* Target MAC matches DMAC */
/**< Protocol addr. length 4, hardware length 6 */
enum ocelot_vcap_bit length;
enum ocelot_vcap_bit ip; /* Protocol address type IP */
enum ocelot_vcap_bit ethernet; /* Hardware address type Ethernet */
struct ocelot_vcap_ipv4 sip; /* Sender IP address */
struct ocelot_vcap_ipv4 dip; /* Target IP address */
};
struct ocelot_vcap_key_ipv4 {
enum ocelot_vcap_bit ttl; /* TTL zero */
enum ocelot_vcap_bit fragment; /* Fragment */
enum ocelot_vcap_bit options; /* Header options */
struct ocelot_vcap_u8 ds;
struct ocelot_vcap_u8 proto; /* Protocol */
struct ocelot_vcap_ipv4 sip; /* Source IP address */
struct ocelot_vcap_ipv4 dip; /* Destination IP address */
struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
struct ocelot_vcap_udp_tcp sport; /* UDP/TCP: Source port */
struct ocelot_vcap_udp_tcp dport; /* UDP/TCP: Destination port */
enum ocelot_vcap_bit tcp_fin;
enum ocelot_vcap_bit tcp_syn;
enum ocelot_vcap_bit tcp_rst;
enum ocelot_vcap_bit tcp_psh;
enum ocelot_vcap_bit tcp_ack;
enum ocelot_vcap_bit tcp_urg;
enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
};
struct ocelot_vcap_key_ipv6 {
struct ocelot_vcap_u8 proto; /* IPv6 protocol */
struct ocelot_vcap_u128 sip; /* IPv6 source (byte 0-7 ignored) */
struct ocelot_vcap_u128 dip; /* IPv6 destination (byte 0-7 ignored) */
enum ocelot_vcap_bit ttl; /* TTL zero */
struct ocelot_vcap_u8 ds;
struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
struct ocelot_vcap_udp_tcp sport;
struct ocelot_vcap_udp_tcp dport;
enum ocelot_vcap_bit tcp_fin;
enum ocelot_vcap_bit tcp_syn;
enum ocelot_vcap_bit tcp_rst;
enum ocelot_vcap_bit tcp_psh;
enum ocelot_vcap_bit tcp_ack;
enum ocelot_vcap_bit tcp_urg;
enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
};
enum ocelot_mask_mode {
OCELOT_MASK_MODE_NONE,
OCELOT_MASK_MODE_PERMIT_DENY,
OCELOT_MASK_MODE_POLICY,
OCELOT_MASK_MODE_REDIRECT,
};
enum ocelot_es0_vid_sel {
OCELOT_ES0_VID_PLUS_CLASSIFIED_VID = 0,
OCELOT_ES0_VID = 1,
};
enum ocelot_es0_pcp_sel {
OCELOT_CLASSIFIED_PCP = 0,
OCELOT_ES0_PCP = 1,
};
enum ocelot_es0_tag {
OCELOT_NO_ES0_TAG,
OCELOT_ES0_TAG,
OCELOT_FORCE_PORT_TAG,
OCELOT_FORCE_UNTAG,
};
enum ocelot_tag_tpid_sel {
OCELOT_TAG_TPID_SEL_8021Q,
OCELOT_TAG_TPID_SEL_8021AD,
};
struct ocelot_vcap_action {
union {
/* VCAP ES0 */
struct {
enum ocelot_es0_tag push_outer_tag;
enum ocelot_es0_tag push_inner_tag;
enum ocelot_tag_tpid_sel tag_a_tpid_sel;
int tag_a_vid_sel;
int tag_a_pcp_sel;
u16 vid_a_val;
u8 pcp_a_val;
u8 dei_a_val;
enum ocelot_tag_tpid_sel tag_b_tpid_sel;
int tag_b_vid_sel;
int tag_b_pcp_sel;
u16 vid_b_val;
u8 pcp_b_val;
u8 dei_b_val;
};
/* VCAP IS1 */
struct {
bool vid_replace_ena;
u16 vid;
bool vlan_pop_cnt_ena;
int vlan_pop_cnt;
bool pcp_dei_ena;
u8 pcp;
u8 dei;
bool qos_ena;
u8 qos_val;
u8 pag_override_mask;
u8 pag_val;
};
/* VCAP IS2 */
struct {
bool cpu_copy_ena;
u8 cpu_qu_num;
enum ocelot_mask_mode mask_mode;
unsigned long port_mask;
bool police_ena;
bool mirror_ena;
struct ocelot_policer pol;
u32 pol_ix;
};
};
};
struct ocelot_vcap_stats {
u64 bytes;
u64 pkts;
u64 used;
};
enum ocelot_vcap_filter_type {
OCELOT_VCAP_FILTER_DUMMY,
OCELOT_VCAP_FILTER_PAG,
OCELOT_VCAP_FILTER_OFFLOAD,
OCELOT_PSFP_FILTER_OFFLOAD,
};
struct ocelot_vcap_id {
unsigned long cookie;
bool tc_offload;
};
struct ocelot_vcap_filter {
struct list_head list;
enum ocelot_vcap_filter_type type;
int block_id;
int goto_target;
int lookup;
u8 pag;
u16 prio;
struct ocelot_vcap_id id;
struct ocelot_vcap_action action;
struct ocelot_vcap_stats stats;
/* For VCAP IS1 and IS2 */
bool take_ts;
bool is_trap;
unsigned long ingress_port_mask;
/* For VCAP ES0 */
struct ocelot_vcap_port ingress_port;
/* For VCAP IS2 mirrors and ES0 */
struct ocelot_vcap_port egress_port;
enum ocelot_vcap_bit dmac_mc;
enum ocelot_vcap_bit dmac_bc;
struct ocelot_vcap_key_vlan vlan;
enum ocelot_vcap_key_type key_type;
union {
/* OCELOT_VCAP_KEY_ANY: No specific fields */
struct ocelot_vcap_key_etype etype;
struct ocelot_vcap_key_llc llc;
struct ocelot_vcap_key_snap snap;
struct ocelot_vcap_key_arp arp;
struct ocelot_vcap_key_ipv4 ipv4;
struct ocelot_vcap_key_ipv6 ipv6;
} key;
};
int ocelot_vcap_filter_add(struct ocelot *ocelot,
struct ocelot_vcap_filter *rule,
struct netlink_ext_ack *extack);
int ocelot_vcap_filter_del(struct ocelot *ocelot,
struct ocelot_vcap_filter *rule);
int ocelot_vcap_filter_replace(struct ocelot *ocelot,
struct ocelot_vcap_filter *filter);
struct ocelot_vcap_filter *
ocelot_vcap_block_find_filter_by_id(struct ocelot_vcap_block *block,
unsigned long cookie, bool tc_offload);
#endif /* _OCELOT_VCAP_H_ */
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