net/bnxt: support extended exact match
[dpdk.git] / drivers / net / bnxt / tf_core / tf_tbl.h
index 5a5e72f..aba46fd 100644 (file)
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2019-2020 Broadcom
+ * Copyright(c) 2019-2021 Broadcom
  * All rights reserved.
  */
 
-#ifndef _TF_TBL_H_
-#define _TF_TBL_H_
+#ifndef TF_TBL_TYPE_H_
+#define TF_TBL_TYPE_H_
 
-#include <stdint.h>
+#include "tf_core.h"
+#include "stack.h"
 
-enum tf_pg_tbl_lvl {
-       PT_LVL_0,
-       PT_LVL_1,
-       PT_LVL_2,
-       PT_LVL_MAX
-};
+struct tf;
+
+/**
+ * The Table module provides processing of Internal TF table types.
+ */
 
 /** Invalid table scope id */
 #define TF_TBL_SCOPE_INVALID 0xffffffff
 
 /**
- * Table Scope Control Block
- *
- * Holds private data for a table scope. Only one instance of a table
- * scope with Internal EM is supported.
+ * Table configuration parameters
  */
-struct tf_tbl_scope_cb {
+struct tf_tbl_cfg_parms {
+       /**
+        * Number of table types in each of the configuration arrays
+        */
+       uint16_t num_elements;
+       /**
+        * Table Type element configuration array
+        */
+       struct tf_rm_element_cfg *cfg;
+       /**
+        * Shadow table type configuration array
+        */
+       struct tf_shadow_tbl_cfg *shadow_cfg;
+       /**
+        * Boolean controlling the request shadow copy.
+        */
+       bool shadow_copy;
+       /**
+        * Session resource allocations
+        */
+       struct tf_session_resources *resources;
+};
+
+/**
+ * Table allocation parameters
+ */
+struct tf_tbl_alloc_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of the allocation
+        */
+       enum tf_tbl_type type;
+       /**
+        * [in] Table scope identifier (ignored unless TF_TBL_TYPE_EXT)
+        */
        uint32_t tbl_scope_id;
-       int index;
-       uint32_t              *ext_pool_mem[TF_DIR_MAX][TF_EXT_POOL_CNT_MAX];
+       /**
+        * [out] Idx of allocated entry or found entry (if search_enable)
+        */
+       uint32_t *idx;
+};
+
+/**
+ * Table free parameters
+ */
+struct tf_tbl_free_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of the allocation type
+        */
+       enum tf_tbl_type type;
+       /**
+        * [in] Table scope identifier (ignored unless TF_TBL_TYPE_EXT)
+        */
+       uint32_t tbl_scope_id;
+       /**
+        * [in] Index to free
+        */
+       uint32_t idx;
+       /**
+        * [out] Reference count after free, only valid if session has been
+        * created with shadow_copy.
+        */
+       uint16_t ref_cnt;
+};
+
+/**
+ * Table allocate search parameters
+ */
+struct tf_tbl_alloc_search_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of the allocation
+        */
+       enum tf_tbl_type type;
+       /**
+        * [in] Table scope identifier (ignored unless TF_TBL_TYPE_EXT)
+        */
+       uint32_t tbl_scope_id;
+       /**
+        * [in] Result data to search for
+        */
+       uint8_t *result;
+       /**
+        * [in] Result data size in bytes
+        */
+       uint16_t result_sz_in_bytes;
+       /**
+        * [in] Whether or not to allocate on MISS, 1 is allocate.
+        */
+       uint8_t alloc;
+       /**
+        * [out] If search_enable, set if matching entry found
+        */
+       uint8_t hit;
+       /**
+        * [out] The status of the search (REJECT, MISS, HIT)
+        */
+       enum tf_search_status search_status;
+       /**
+        * [out] Current ref count after allocation
+        */
+       uint16_t ref_cnt;
+       /**
+        * [out] Idx of allocated entry or found entry
+        */
+       uint32_t idx;
+};
+
+/**
+ * Table set parameters
+ */
+struct tf_tbl_set_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of object to set
+        */
+       enum tf_tbl_type type;
+       /**
+        * [in] Table scope identifier (ignored unless TF_TBL_TYPE_EXT)
+        */
+       uint32_t tbl_scope_id;
+       /**
+        * [in] Entry data
+        */
+       uint8_t *data;
+       /**
+        * [in] Entry size
+        */
+       uint16_t data_sz_in_bytes;
+       /**
+        * [in] Entry index to write to
+        */
+       uint32_t idx;
+};
+
+/**
+ * Table get parameters
+ */
+struct tf_tbl_get_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of object to get
+        */
+       enum tf_tbl_type type;
+       /**
+        * [out] Entry data
+        */
+       uint8_t *data;
+       /**
+        * [out] Entry size
+        */
+       uint16_t data_sz_in_bytes;
+       /**
+        * [in] Entry index to read
+        */
+       uint32_t idx;
+};
+
+/**
+ * Table get bulk parameters
+ */
+struct tf_tbl_get_bulk_parms {
+       /**
+        * [in] Receive or transmit direction
+        */
+       enum tf_dir dir;
+       /**
+        * [in] Type of object to get
+        */
+       enum tf_tbl_type type;
+       /**
+        * [in] Starting index to read from
+        */
+       uint32_t starting_idx;
+       /**
+        * [in] Number of sequential entries
+        */
+       uint16_t num_entries;
+       /**
+        * [in] Size of the single entry
+        */
+       uint16_t entry_sz_in_bytes;
+       /**
+        * [out] Host physical address, where the data
+        * will be copied to by the firmware.
+        * Use tfp_calloc() API and mem_pa
+        * variable of the tfp_calloc_parms
+        * structure for the physical address.
+        */
+       uint64_t physical_mem_addr;
+};
+
+/**
+ * Table RM database
+ *
+ * Table rm database
+ *
+ */
+struct tbl_rm_db {
+       struct rm_db *tbl_db[TF_DIR_MAX];
 };
 
 /**
- * Initialize table pool structure to indicate
- * no table scope has been associated with the
- * external pool of indexes.
+ * @page tbl Table
+ *
+ * @ref tf_tbl_bind
+ *
+ * @ref tf_tbl_unbind
+ *
+ * @ref tf_tbl_alloc
+ *
+ * @ref tf_tbl_free
+ *
+ * @ref tf_tbl_alloc_search
+ *
+ * @ref tf_tbl_set
+ *
+ * @ref tf_tbl_get
+ *
+ * @ref tf_tbl_bulk_get
+ */
+
+/**
+ * Initializes the Table module with the requested DBs. Must be
+ * invoked as the first thing before any of the access functions.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table configuration parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_bind(struct tf *tfp,
+               struct tf_tbl_cfg_parms *parms);
+
+/**
+ * Cleans up the private DBs and releases all the data.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_unbind(struct tf *tfp);
+
+/**
+ * Allocates the requested table type from the internal RM DB.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table allocation parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_alloc(struct tf *tfp,
+                struct tf_tbl_alloc_parms *parms);
+
+/**
+ * Free's the requested table type and returns it to the DB. If shadow
+ * DB is enabled its searched first and if found the element refcount
+ * is decremented. If refcount goes to 0 then its returned to the
+ * table type DB.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table free parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_free(struct tf *tfp,
+               struct tf_tbl_free_parms *parms);
+
+/**
+ * Supported if Shadow DB is configured. Searches the Shadow DB for
+ * any matching element. If found the refcount in the shadow DB is
+ * updated accordingly. If not found a new element is allocated and
+ * installed into the shadow DB.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_alloc_search(struct tf *tfp,
+                       struct tf_tbl_alloc_search_parms *parms);
+
+/**
+ * Configures the requested element by sending a firmware request which
+ * then installs it into the device internal structures.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table set parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_set(struct tf *tfp,
+              struct tf_tbl_set_parms *parms);
+
+/**
+ * Retrieves the requested element by sending a firmware request to get
+ * the element.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table get parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_get(struct tf *tfp,
+              struct tf_tbl_get_parms *parms);
+
+/**
+ * Retrieves bulk block of elements by sending a firmware request to
+ * get the elements.
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table get bulk parameters
+ *
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
+ */
+int tf_tbl_bulk_get(struct tf *tfp,
+                   struct tf_tbl_get_bulk_parms *parms);
+
+/**
+ * Retrieves the allocated resource info
+ *
+ * [in] tfp
+ *   Pointer to TF handle, used for HCAPI communication
+ *
+ * [in] parms
+ *   Pointer to Table resource info parameters
  *
- * [in] session
+ * Returns
+ *   - (0) if successful.
+ *   - (-EINVAL) on failure.
  */
-void
-tf_init_tbl_pool(struct tf_session *session);
+int
+tf_tbl_get_resc_info(struct tf *tfp,
+                    struct tf_tbl_resource_info *tbl);
 
-#endif /* _TF_TBL_H_ */
+#endif /* TF_TBL_TYPE_H */