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numam-dpdk/drivers/net/bnxt/tf_ulp/bnxt_ulp.h
Venkat Duvvuru 675e31d877 net/bnxt: support VXLAN decap offload 
VXLAN decap offload can happen in stages. The offload request may
not come as a single flow request rather may come as two flow offload
requests F1 & F2. This patch is adding support for this two stage
offload design. The match criteria for F1 is O_DMAC, O_SMAC,
O_DST_IP, O_UDP_DPORT and actions are COUNT, MARK, JUMP. The match
criteria for F2 is O_SRC_IP, O_DST_IP, VNI and inner header fields.
F1 and F2 flow offload requests can come in any order. If F2 flow
offload request comes first then F2 can’t be offloaded as there is
no O_DMAC information in F2. In this case, F2 will be deferred until
F1 flow offload request arrives. When F1 flow offload request is
received it will have O_DMAC information. Using F1’s O_DMAC, driver
creates an L2 context entry in the hardware as part of offloading F1.
F2 will now use F1’s O_DMAC to get the L2 context id associated with
this O_DMAC and other flow fields that are cached already at the time
of deferring F2 for offloading. F2s that arrive after F1 is offloaded
will be directly programmed and not cached.

Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2020-11-03 23:35:03 +01:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019-2020 Broadcom
* All rights reserved.
*/
#ifndef _BNXT_ULP_H_
#define _BNXT_ULP_H_
#include <inttypes.h>
#include <stdbool.h>
#include <sys/queue.h>
#include "rte_ethdev.h"
#include "ulp_template_db_enum.h"
#include "ulp_tun.h"
#include "bnxt_tf_common.h"
/* NAT defines to reuse existing inner L2 SMAC and DMAC */
#define BNXT_ULP_NAT_INNER_L2_HEADER_SMAC 0x2000
#define BNXT_ULP_NAT_OUTER_MOST_L2_HDR_SMAC 0x6000
#define BNXT_ULP_NAT_OUTER_MOST_L2_VLAN_TAGS 0xc00
#define BNXT_ULP_NAT_INNER_L2_HEADER_DMAC 0x100
#define BNXT_ULP_NAT_OUTER_MOST_L2_HDR_DMAC 0x300
#define BNXT_ULP_NAT_OUTER_MOST_FLAGS (BNXT_ULP_NAT_OUTER_MOST_L2_HDR_SMAC |\
BNXT_ULP_NAT_OUTER_MOST_L2_VLAN_TAGS |\
BNXT_ULP_NAT_OUTER_MOST_L2_HDR_DMAC)
/* defines for the ulp_flags */
#define BNXT_ULP_VF_REP_ENABLED 0x1
#define ULP_VF_REP_IS_ENABLED(flag) ((flag) & BNXT_ULP_VF_REP_ENABLED)
struct bnxt_ulp_df_rule_info {
uint32_t port_to_app_flow_id;
uint32_t app_to_port_flow_id;
uint8_t valid;
};
struct bnxt_ulp_vfr_rule_info {
uint32_t rep2vf_flow_id;
uint32_t vf2rep_flow_id;
uint16_t parent_port_id;
uint8_t valid;
};
struct bnxt_ulp_data {
uint32_t tbl_scope_id;
struct bnxt_ulp_mark_tbl *mark_tbl;
uint32_t dev_id; /* Hardware device id */
uint32_t ref_cnt;
struct bnxt_ulp_flow_db *flow_db;
pthread_mutex_t flow_db_lock;
void *mapper_data;
struct bnxt_ulp_port_db *port_db;
struct bnxt_ulp_fc_info *fc_info;
uint32_t ulp_flags;
struct bnxt_ulp_df_rule_info df_rule_info[RTE_MAX_ETHPORTS];
struct bnxt_ulp_vfr_rule_info vfr_rule_info[RTE_MAX_ETHPORTS];
enum bnxt_ulp_flow_mem_type mem_type;
#define BNXT_ULP_TUN_ENTRY_INVALID -1
#define BNXT_ULP_MAX_TUN_CACHE_ENTRIES 16
struct bnxt_tun_cache_entry tun_tbl[BNXT_ULP_MAX_TUN_CACHE_ENTRIES];
};
struct bnxt_ulp_context {
struct bnxt_ulp_data *cfg_data;
struct tf *g_tfp;
};
struct bnxt_ulp_pci_info {
uint32_t domain;
uint8_t bus;
};
struct bnxt_ulp_session_state {
STAILQ_ENTRY(bnxt_ulp_session_state) next;
bool bnxt_ulp_init;
pthread_mutex_t bnxt_ulp_mutex;
struct bnxt_ulp_pci_info pci_info;
struct bnxt_ulp_data *cfg_data;
struct tf *g_tfp;
uint32_t session_opened;
};
/* ULP flow id structure */
struct rte_tf_flow {
uint32_t flow_id;
};
struct ulp_tlv_param {
enum bnxt_ulp_df_param_type type;
uint32_t length;
uint8_t value[16];
};
/*
* Allow the deletion of context only for the bnxt device that
* created the session
*/
bool
ulp_ctx_deinit_allowed(struct bnxt_ulp_context *ulp_ctx);
/* Function to set the device id of the hardware. */
int32_t
bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx, uint32_t dev_id);
/* Function to get the device id of the hardware. */
int32_t
bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx, uint32_t *dev_id);
/* Function to get whether or not ext mem is used for EM */
int32_t
bnxt_ulp_cntxt_mem_type_get(struct bnxt_ulp_context *ulp_ctx,
enum bnxt_ulp_flow_mem_type *mem_type);
/* Function to set whether or not ext mem is used for EM */
int32_t
bnxt_ulp_cntxt_mem_type_set(struct bnxt_ulp_context *ulp_ctx,
enum bnxt_ulp_flow_mem_type mem_type);
/* Function to set the table scope id of the EEM table. */
int32_t
bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
uint32_t tbl_scope_id);
/* Function to get the table scope id of the EEM table. */
int32_t
bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
uint32_t *tbl_scope_id);
/* Function to set the tfp session details in the ulp context. */
int32_t
bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp);
/* Function to get the tfp session details from ulp context. */
struct tf *
bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp);
/* Get the device table entry based on the device id. */
struct bnxt_ulp_device_params *
bnxt_ulp_device_params_get(uint32_t dev_id);
int32_t
bnxt_ulp_ctxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mark_tbl *mark_tbl);
struct bnxt_ulp_mark_tbl *
bnxt_ulp_ctxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx);
/* Function to set the flow database to the ulp context. */
int32_t
bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_flow_db *flow_db);
/* Function to get the flow database from the ulp context. */
struct bnxt_ulp_flow_db *
bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx);
/* Function to get the tunnel cache table info from the ulp context. */
struct bnxt_tun_cache_entry *
bnxt_ulp_cntxt_ptr2_tun_tbl_get(struct bnxt_ulp_context *ulp_ctx);
/* Function to get the ulp context from eth device. */
struct bnxt_ulp_context *
bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev *dev);
/* Function to add the ulp mapper data to the ulp context */
int32_t
bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
void *mapper_data);
/* Function to get the ulp mapper data from the ulp context */
void *
bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx);
/* Function to set the port database to the ulp context. */
int32_t
bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_port_db *port_db);
/* Function to get the port database from the ulp context. */
struct bnxt_ulp_port_db *
bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx);
/* Function to create default flows. */
int32_t
ulp_default_flow_create(struct rte_eth_dev *eth_dev,
struct ulp_tlv_param *param_list,
uint32_t ulp_class_tid,
uint32_t *flow_id);
/* Function to destroy default flows. */
int32_t
ulp_default_flow_destroy(struct rte_eth_dev *eth_dev,
uint32_t flow_id);
int
bnxt_ulp_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error);
int32_t
bnxt_ulp_cntxt_ptr2_fc_info_set(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_fc_info *ulp_fc_info);
struct bnxt_ulp_fc_info *
bnxt_ulp_cntxt_ptr2_fc_info_get(struct bnxt_ulp_context *ulp_ctx);
int32_t
bnxt_ulp_cntxt_ptr2_ulp_flags_get(struct bnxt_ulp_context *ulp_ctx,
uint32_t *flags);
int32_t
bnxt_ulp_get_df_rule_info(uint8_t port_id, struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_df_rule_info *info);
struct bnxt_ulp_vfr_rule_info*
bnxt_ulp_cntxt_ptr2_ulp_vfr_info_get(struct bnxt_ulp_context *ulp_ctx,
uint32_t port_id);
int32_t
bnxt_ulp_cntxt_acquire_fdb_lock(struct bnxt_ulp_context *ulp_ctx);
void
bnxt_ulp_cntxt_release_fdb_lock(struct bnxt_ulp_context *ulp_ctx);
int32_t
ulp_post_process_tun_flow(struct ulp_rte_parser_params *params);
#endif /* _BNXT_ULP_H_ */
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