/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) Meta Platforms, Inc. and affiliates. */ #ifndef _FBNIC_RPC_H_ #define _FBNIC_RPC_H_ #include <uapi/linux/in6.h> #include <linux/bitfield.h> /* The TCAM state definitions follow an expected ordering. * They start out disabled, then move through the following states: * Disabled 0 -> Add 2 * Add 2 -> Valid 1 * * Valid 1 -> Add/Update 2 * Add 2 -> Valid 1 * * Valid 1 -> Delete 3 * Delete 3 -> Disabled 0 */ enum { … }; /* 32 MAC Destination Address TCAM Entries * 4 registers DA[1:0], DA[3:2], DA[5:4], Validate */ #define FBNIC_RPC_TCAM_MACDA_WORD_LEN … #define FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES … #define FBNIC_RPC_TCAM_ACT_WORD_LEN … #define FBNIC_RPC_TCAM_ACT_NUM_ENTRIES … struct fbnic_mac_addr { … }; struct fbnic_act_tcam { … }; enum { … }; /* Reserve the first 2 entries for the use by the BMC so that we can * avoid allowing rules to get in the way of BMC unicast traffic. */ #define FBNIC_RPC_ACT_TBL_BMC_OFFSET … #define FBNIC_RPC_ACT_TBL_BMC_ALL_MULTI_OFFSET … /* We reserve the last 14 entries for RSS rules on the host. The BMC * unicast rule will need to be populated above these and is expected to * use MACDA TCAM entry 23 to store the BMC MAC address. */ #define FBNIC_RPC_ACT_TBL_RSS_OFFSET … /* Flags used to identify the owner for this MAC filter. Note that any * flags set for Broadcast thru Promisc indicate that the rule belongs * to the RSS filters for the host. */ enum { … }; #define FBNIC_MAC_ADDR_T_HOST_LEN … #define FBNIC_RPC_TCAM_ACT0_IPSRC_IDX … #define FBNIC_RPC_TCAM_ACT0_IPSRC_VALID … #define FBNIC_RPC_TCAM_ACT0_IPDST_IDX … #define FBNIC_RPC_TCAM_ACT0_IPDST_VALID … #define FBNIC_RPC_TCAM_ACT0_OUTER_IPSRC_IDX … #define FBNIC_RPC_TCAM_ACT0_OUTER_IPSRC_VALID … #define FBNIC_RPC_TCAM_ACT0_OUTER_IPDST_IDX … #define FBNIC_RPC_TCAM_ACT0_OUTER_IPDST_VALID … #define FBNIC_RPC_TCAM_ACT1_L2_MACDA_IDX … #define FBNIC_RPC_TCAM_ACT1_L2_MACDA_VALID … #define FBNIC_RPC_TCAM_ACT1_IP_IS_V6 … #define FBNIC_RPC_TCAM_ACT1_IP_VALID … #define FBNIC_RPC_TCAM_ACT1_OUTER_IP_VALID … #define FBNIC_RPC_TCAM_ACT1_L4_IS_UDP … #define FBNIC_RPC_TCAM_ACT1_L4_VALID … /* TCAM 0 - 3 reserved for BMC MAC addresses */ #define FBNIC_RPC_TCAM_MACDA_BMC_ADDR_IDX … /* TCAM 4 reserved for broadcast MAC address */ #define FBNIC_RPC_TCAM_MACDA_BROADCAST_IDX … /* TCAMs 5 - 30 will be used for multicast and unicast addresses. The * boundary between the two can be variable it is currently set to 24 * on which the unicast addresses start. The general idea is that we will * always go top-down with unicast, and bottom-up with multicast so that * there should be free-space in the middle between the two. * * The entry at MADCA_DEFAULT_BOUNDARY is a special case as it can be used * for the ALL MULTI address if the list is full, or the BMC has requested * it. */ #define FBNIC_RPC_TCAM_MACDA_MULTICAST_IDX … #define FBNIC_RPC_TCAM_MACDA_DEFAULT_BOUNDARY … #define FBNIC_RPC_TCAM_MACDA_HOST_ADDR_IDX … /* Reserved for use to record Multicast promisc, or Promiscuous */ #define FBNIC_RPC_TCAM_MACDA_PROMISC_IDX … enum { … }; struct fbnic_dev; struct fbnic_net; void fbnic_bmc_rpc_init(struct fbnic_dev *fbd); void fbnic_bmc_rpc_all_multi_config(struct fbnic_dev *fbd, bool enable_host); void fbnic_reset_indir_tbl(struct fbnic_net *fbn); void fbnic_rss_key_fill(u32 *buffer); void fbnic_rss_init_en_mask(struct fbnic_net *fbn); void fbnic_rss_disable_hw(struct fbnic_dev *fbd); void fbnic_rss_reinit_hw(struct fbnic_dev *fbd, struct fbnic_net *fbn); void fbnic_rss_reinit(struct fbnic_dev *fbd, struct fbnic_net *fbn); int __fbnic_xc_unsync(struct fbnic_mac_addr *mac_addr, unsigned int tcam_idx); struct fbnic_mac_addr *__fbnic_uc_sync(struct fbnic_dev *fbd, const unsigned char *addr); struct fbnic_mac_addr *__fbnic_mc_sync(struct fbnic_dev *fbd, const unsigned char *addr); void fbnic_sift_macda(struct fbnic_dev *fbd); void fbnic_write_macda(struct fbnic_dev *fbd); static inline int __fbnic_uc_unsync(struct fbnic_mac_addr *mac_addr) { … } static inline int __fbnic_mc_unsync(struct fbnic_mac_addr *mac_addr) { … } void fbnic_clear_rules(struct fbnic_dev *fbd); void fbnic_write_rules(struct fbnic_dev *fbd); #endif /* _FBNIC_RPC_H_ */
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