X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fbnxt%2Ftf_core%2Ftf_em.c;h=fcbbd7ecad816fb5dad1c383183a45ddb5f99442;hb=77805a17a3e082f1ae1366ea59f61035985446cc;hp=bd8e2ba8a1a63085e705b91a2ce0cd7bb0857be8;hpb=69c410b8448d216239e95fce46bfe2c3ae81ff64;p=dpdk.git diff --git a/drivers/net/bnxt/tf_core/tf_em.c b/drivers/net/bnxt/tf_core/tf_em.c index bd8e2ba8a1..fcbbd7ecad 100644 --- a/drivers/net/bnxt/tf_core/tf_em.c +++ b/drivers/net/bnxt/tf_core/tf_em.c @@ -17,11 +17,6 @@ #include "bnxt.h" -/* Enable EEM table dump - */ -#define TF_EEM_DUMP - -static struct tf_eem_64b_entry zero_key_entry; static uint32_t tf_em_get_key_mask(int num_entries) { @@ -36,326 +31,22 @@ static uint32_t tf_em_get_key_mask(int num_entries) return mask; } -/* CRC32i support for Key0 hash */ -#define ucrc32(ch, crc) (crc32tbl[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8)) -#define crc32(x, y) crc32i(~0, x, y) - -static const uint32_t crc32tbl[] = { /* CRC polynomial 0xedb88320 */ -0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, -0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, -0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, -0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, -0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, -0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, -0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, -0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, -0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, -0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, -0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, -0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, -0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, -0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, -0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, -0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, -0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, -0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, -0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, -0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, -0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, -0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, -0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, -0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, -0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, -0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, -0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, -0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, -0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, -0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, -0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, -0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, -0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, -0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, -0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, -0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, -0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, -0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, -0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, -0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, -0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, -0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, -0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, -0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, -0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, -0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, -0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, -0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, -0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, -0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, -0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, -0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, -0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, -0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, -0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, -0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, -0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, -0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, -0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, -0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, -0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, -0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, -0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, -0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d -}; - -static uint32_t crc32i(uint32_t crc, const uint8_t *buf, size_t len) -{ - int l; - - for (l = (len - 1); l >= 0; l--) - crc = ucrc32(buf[l], crc); - - return ~crc; -} - -static uint32_t tf_em_lkup_get_crc32_hash(struct tf_session *session, - uint8_t *key, - enum tf_dir dir) -{ - int i; - uint32_t index; - uint32_t val1, val2; - uint8_t temp[4]; - uint8_t *kptr = key; - - /* Do byte-wise XOR of the 52-byte HASH key first. */ - index = *key; - kptr--; - - for (i = TF_HW_EM_KEY_MAX_SIZE - 2; i >= 0; i--) { - index = index ^ *kptr; - kptr--; - } - - /* Get seeds */ - val1 = session->lkup_em_seed_mem[dir][index * 2]; - val2 = session->lkup_em_seed_mem[dir][index * 2 + 1]; - - temp[3] = (uint8_t)(val1 >> 24); - temp[2] = (uint8_t)(val1 >> 16); - temp[1] = (uint8_t)(val1 >> 8); - temp[0] = (uint8_t)(val1 & 0xff); - val1 = 0; - - /* Start with seed */ - if (!(val2 & 0x1)) - val1 = crc32i(~val1, temp, 4); - - val1 = crc32i(~val1, - (key - (TF_HW_EM_KEY_MAX_SIZE - 1)), - TF_HW_EM_KEY_MAX_SIZE); - - /* End with seed */ - if (val2 & 0x1) - val1 = crc32i(~val1, temp, 4); - - return val1; -} - -static uint32_t tf_em_lkup_get_lookup3_hash(uint32_t lookup3_init_value, - uint8_t *in_key) -{ - uint32_t val1; - - val1 = hashword(((uint32_t *)in_key) + 1, - TF_HW_EM_KEY_MAX_SIZE / (sizeof(uint32_t)), - lookup3_init_value); - - return val1; -} - -void *tf_em_get_table_page(struct tf_tbl_scope_cb *tbl_scope_cb, - enum tf_dir dir, - uint32_t offset, - enum tf_em_table_type table_type) -{ - int level = 0; - int page = offset / TF_EM_PAGE_SIZE; - void *addr = NULL; - struct tf_em_ctx_mem_info *ctx = &tbl_scope_cb->em_ctx_info[dir]; - - if (ctx == NULL) - return NULL; - - if (dir != TF_DIR_RX && dir != TF_DIR_TX) - return NULL; - - if (table_type < KEY0_TABLE || table_type > EFC_TABLE) - return NULL; - - /* - * Use the level according to the num_level of page table - */ - level = ctx->em_tables[table_type].num_lvl - 1; - - addr = (void *)ctx->em_tables[table_type].pg_tbl[level].pg_va_tbl[page]; - - return addr; -} - -/** Read Key table entry - * - * Entry is read in to entry - */ -static int tf_em_read_entry(struct tf_tbl_scope_cb *tbl_scope_cb, - struct tf_eem_64b_entry *entry, - uint32_t entry_size, - uint32_t index, - enum tf_em_table_type table_type, - enum tf_dir dir) -{ - void *page; - uint32_t entry_offset = (index * entry_size) % TF_EM_PAGE_SIZE; - - page = tf_em_get_table_page(tbl_scope_cb, - dir, - (index * entry_size), - table_type); - - if (page == NULL) - return -EINVAL; - - memcpy((uint8_t *)entry, (uint8_t *)page + entry_offset, entry_size); - return 0; -} - -static int tf_em_write_entry(struct tf_tbl_scope_cb *tbl_scope_cb, - struct tf_eem_64b_entry *entry, - uint32_t entry_size, - uint32_t index, - enum tf_em_table_type table_type, - enum tf_dir dir) -{ - void *page; - uint32_t entry_offset = (index * entry_size) % TF_EM_PAGE_SIZE; - - page = tf_em_get_table_page(tbl_scope_cb, - dir, - (index * entry_size), - table_type); - - if (page == NULL) - return -EINVAL; - - memcpy((uint8_t *)page + entry_offset, entry, entry_size); - - return 0; -} - -static int tf_em_entry_exists(struct tf_tbl_scope_cb *tbl_scope_cb, - struct tf_eem_64b_entry *entry, - uint32_t index, - enum tf_em_table_type table_type, - enum tf_dir dir) -{ - int rc; - struct tf_eem_64b_entry table_entry; - - rc = tf_em_read_entry(tbl_scope_cb, - &table_entry, - TF_EM_KEY_RECORD_SIZE, - index, - table_type, - dir); - - if (rc != 0) - return -EINVAL; - - if (table_entry.hdr.word1 & (1 << TF_LKUP_RECORD_VALID_SHIFT)) { - if (entry != NULL) { - if (memcmp(&table_entry, - entry, - TF_EM_KEY_RECORD_SIZE) == 0) - return -EEXIST; - } else { - return -EEXIST; - } - - return -EBUSY; - } - - return 0; -} - -static void tf_em_create_key_entry(struct tf_eem_entry_hdr *result, - uint8_t *in_key, - struct tf_eem_64b_entry *key_entry) +static void tf_em_create_key_entry(struct cfa_p4_eem_entry_hdr *result, + uint8_t *in_key, + struct cfa_p4_eem_64b_entry *key_entry) { key_entry->hdr.word1 = result->word1; - if (result->word1 & TF_LKUP_RECORD_ACT_REC_INT_MASK) + if (result->word1 & CFA_P4_EEM_ENTRY_ACT_REC_INT_MASK) key_entry->hdr.pointer = result->pointer; else key_entry->hdr.pointer = result->pointer; memcpy(key_entry->key, in_key, TF_HW_EM_KEY_MAX_SIZE + 4); -} - -/* tf_em_select_inject_table - * - * Returns: - * 0 - Key does not exist in either table and can be inserted - * at "index" in table "table". - * EEXIST - Key does exist in table at "index" in table "table". - * TF_ERR - Something went horribly wrong. - */ -static int tf_em_select_inject_table(struct tf_tbl_scope_cb *tbl_scope_cb, - enum tf_dir dir, - struct tf_eem_64b_entry *entry, - uint32_t key0_hash, - uint32_t key1_hash, - uint32_t *index, - enum tf_em_table_type *table) -{ - int key0_entry; - int key1_entry; - - /* - * Check KEY0 table. - */ - key0_entry = tf_em_entry_exists(tbl_scope_cb, - entry, - key0_hash, - KEY0_TABLE, - dir); - - /* - * Check KEY1 table. - */ - key1_entry = tf_em_entry_exists(tbl_scope_cb, - entry, - key1_hash, - KEY1_TABLE, - dir); - - if (key0_entry == -EEXIST) { - *table = KEY0_TABLE; - *index = key0_hash; - return -EEXIST; - } else if (key1_entry == -EEXIST) { - *table = KEY1_TABLE; - *index = key1_hash; - return -EEXIST; - } else if (key0_entry == 0) { - *table = KEY0_TABLE; - *index = key0_hash; - return 0; - } else if (key1_entry == 0) { - *table = KEY1_TABLE; - *index = key1_hash; - return 0; - } - return -EINVAL; +#ifdef TF_EEM_DEBUG + dump_raw((uint8_t *)key_entry, TF_EM_KEY_RECORD_SIZE, "Create raw:"); +#endif } /** insert EEM entry API @@ -368,95 +59,199 @@ static int tf_em_select_inject_table(struct tf_tbl_scope_cb *tbl_scope_cb, * 0 * TF_ERR_EM_DUP - key is already in table */ -int tf_insert_eem_entry(struct tf_session *session, - struct tf_tbl_scope_cb *tbl_scope_cb, - struct tf_insert_em_entry_parms *parms) +static int tf_insert_eem_entry(struct tf_tbl_scope_cb *tbl_scope_cb, + struct tf_insert_em_entry_parms *parms) { uint32_t mask; uint32_t key0_hash; uint32_t key1_hash; uint32_t key0_index; uint32_t key1_index; - struct tf_eem_64b_entry key_entry; + struct cfa_p4_eem_64b_entry key_entry; uint32_t index; - enum tf_em_table_type table_type; + enum hcapi_cfa_em_table_type table_type; uint32_t gfid; - int num_of_entry; + struct hcapi_cfa_hwop op; + struct hcapi_cfa_key_tbl key_tbl; + struct hcapi_cfa_key_data key_obj; + struct hcapi_cfa_key_loc key_loc; + uint64_t big_hash; + int rc; /* Get mask to use on hash */ - mask = tf_em_get_key_mask(tbl_scope_cb->em_ctx_info[parms->dir].em_tables[KEY0_TABLE].num_entries); + mask = tf_em_get_key_mask(tbl_scope_cb->em_ctx_info[parms->dir].em_tables[TF_KEY0_TABLE].num_entries); if (!mask) return -EINVAL; - num_of_entry = TF_HW_EM_KEY_MAX_SIZE + 4; +#ifdef TF_EEM_DEBUG + dump_raw((uint8_t *)parms->key, TF_HW_EM_KEY_MAX_SIZE + 4, "In Key"); +#endif - key0_hash = tf_em_lkup_get_crc32_hash(session, - &parms->key[num_of_entry] - 1, - parms->dir); - key0_index = key0_hash & mask; + big_hash = hcapi_cfa_key_hash((uint64_t *)parms->key, + (TF_HW_EM_KEY_MAX_SIZE + 4) * 8); + key0_hash = (uint32_t)(big_hash >> 32); + key1_hash = (uint32_t)(big_hash & 0xFFFFFFFF); - key1_hash = - tf_em_lkup_get_lookup3_hash(session->lkup_lkup3_init_cfg[parms->dir], - parms->key); + key0_index = key0_hash & mask; key1_index = key1_hash & mask; +#ifdef TF_EEM_DEBUG + TFP_DRV_LOG(DEBUG, "Key0 hash:0x%08x\n", key0_hash); + TFP_DRV_LOG(DEBUG, "Key1 hash:0x%08x\n", key1_hash); +#endif /* * Use the "result" arg to populate all of the key entry then * store the byte swapped "raw" entry in a local copy ready * for insertion in to the table. */ - tf_em_create_key_entry((struct tf_eem_entry_hdr *)parms->em_record, + tf_em_create_key_entry((struct cfa_p4_eem_entry_hdr *)parms->em_record, ((uint8_t *)parms->key), &key_entry); /* - * Find which table to use + * Try to add to Key0 table, if that does not work then + * try the key1 table. */ - if (tf_em_select_inject_table(tbl_scope_cb, - parms->dir, - &key_entry, - key0_index, - key1_index, - &index, - &table_type) == 0) { - if (table_type == KEY0_TABLE) { - TF_SET_GFID(gfid, - key0_index, - KEY0_TABLE); - } else { - TF_SET_GFID(gfid, - key1_index, - KEY1_TABLE); - } - - /* - * Inject - */ - if (tf_em_write_entry(tbl_scope_cb, - &key_entry, - TF_EM_KEY_RECORD_SIZE, - index, - table_type, - parms->dir) == 0) { - TF_SET_FLOW_ID(parms->flow_id, - gfid, - TF_GFID_TABLE_EXTERNAL, - parms->dir); - TF_SET_FIELDS_IN_FLOW_HANDLE(parms->flow_handle, - 0, - 0, - 0, - index, - 0, - table_type); - return 0; - } + index = key0_index; + op.opcode = HCAPI_CFA_HWOPS_ADD; + key_tbl.base0 = (uint8_t *) + &tbl_scope_cb->em_ctx_info[parms->dir].em_tables[TF_KEY0_TABLE]; + key_obj.offset = (index * TF_EM_KEY_RECORD_SIZE) % TF_EM_PAGE_SIZE; + key_obj.data = (uint8_t *)&key_entry; + key_obj.size = TF_EM_KEY_RECORD_SIZE; + + rc = hcapi_cfa_key_hw_op(&op, + &key_tbl, + &key_obj, + &key_loc); + + if (rc == 0) { + table_type = TF_KEY0_TABLE; + } else { + index = key1_index; + + key_tbl.base0 = (uint8_t *) + &tbl_scope_cb->em_ctx_info[parms->dir].em_tables[TF_KEY1_TABLE]; + key_obj.offset = + (index * TF_EM_KEY_RECORD_SIZE) % TF_EM_PAGE_SIZE; + + rc = hcapi_cfa_key_hw_op(&op, + &key_tbl, + &key_obj, + &key_loc); + if (rc != 0) + return rc; + + table_type = TF_KEY1_TABLE; } - return -EINVAL; + TF_SET_GFID(gfid, + index, + table_type); + TF_SET_FLOW_ID(parms->flow_id, + gfid, + TF_GFID_TABLE_EXTERNAL, + parms->dir); + TF_SET_FIELDS_IN_FLOW_HANDLE(parms->flow_handle, + 0, + 0, + 0, + index, + 0, + table_type); + + return 0; } +/** + * Insert EM internal entry API + * + * returns: + * 0 - Success + */ +static int tf_insert_em_internal_entry(struct tf *tfp, + struct tf_insert_em_entry_parms *parms) +{ + int rc; + uint32_t gfid; + uint16_t rptr_index = 0; + uint8_t rptr_entry = 0; + uint8_t num_of_entries = 0; + struct tf_session *session = + (struct tf_session *)(tfp->session->core_data); + struct stack *pool = &session->em_pool[parms->dir]; + uint32_t index; + + rc = stack_pop(pool, &index); + + if (rc != 0) { + TFP_DRV_LOG(ERR, + "dir:%d, EM entry index allocation failed\n", + parms->dir); + return rc; + } + + rptr_index = index * TF_SESSION_EM_ENTRY_SIZE; + rc = tf_msg_insert_em_internal_entry(tfp, + parms, + &rptr_index, + &rptr_entry, + &num_of_entries); + if (rc != 0) + return -1; + + PMD_DRV_LOG(ERR, + "Internal entry @ Index:%d rptr_index:0x%x rptr_entry:0x%x num_of_entries:%d\n", + index * TF_SESSION_EM_ENTRY_SIZE, + rptr_index, + rptr_entry, + num_of_entries); + + TF_SET_GFID(gfid, + ((rptr_index << TF_EM_INTERNAL_INDEX_SHIFT) | + rptr_entry), + 0); /* N/A for internal table */ + + TF_SET_FLOW_ID(parms->flow_id, + gfid, + TF_GFID_TABLE_INTERNAL, + parms->dir); + + TF_SET_FIELDS_IN_FLOW_HANDLE(parms->flow_handle, + num_of_entries, + 0, + 0, + rptr_index, + rptr_entry, + 0); + return 0; +} + +/** Delete EM internal entry API + * + * returns: + * 0 + * -EINVAL + */ +static int tf_delete_em_internal_entry(struct tf *tfp, + struct tf_delete_em_entry_parms *parms) +{ + int rc; + struct tf_session *session = + (struct tf_session *)(tfp->session->core_data); + struct stack *pool = &session->em_pool[parms->dir]; + + rc = tf_msg_delete_em_entry(tfp, parms); + + /* Return resource to pool */ + if (rc == 0) + stack_push(pool, parms->index / TF_SESSION_EM_ENTRY_SIZE); + + return rc; +} + + /** delete EEM hash entry API * * returns: @@ -470,46 +265,96 @@ int tf_insert_eem_entry(struct tf_session *session, * 0 * TF_NO_EM_MATCH - entry not found */ -int tf_delete_eem_entry(struct tf *tfp, - struct tf_delete_em_entry_parms *parms) +static int tf_delete_eem_entry(struct tf_tbl_scope_cb *tbl_scope_cb, + struct tf_delete_em_entry_parms *parms) { - struct tf_session *session; - struct tf_tbl_scope_cb *tbl_scope_cb; - enum tf_em_table_type hash_type; + enum hcapi_cfa_em_table_type hash_type; uint32_t index; + struct hcapi_cfa_hwop op; + struct hcapi_cfa_key_tbl key_tbl; + struct hcapi_cfa_key_data key_obj; + struct hcapi_cfa_key_loc key_loc; + int rc; - if (parms == NULL) + if (parms->flow_handle == 0) return -EINVAL; - session = (struct tf_session *)tfp->session->core_data; - if (session == NULL) - return -EINVAL; + TF_GET_HASH_TYPE_FROM_FLOW_HANDLE(parms->flow_handle, hash_type); + TF_GET_INDEX_FROM_FLOW_HANDLE(parms->flow_handle, index); - tbl_scope_cb = tbl_scope_cb_find(session, - parms->tbl_scope_id); - if (tbl_scope_cb == NULL) - return -EINVAL; + op.opcode = HCAPI_CFA_HWOPS_DEL; + key_tbl.base0 = (uint8_t *) + &tbl_scope_cb->em_ctx_info[parms->dir].em_tables[(hash_type == 0 ? + TF_KEY0_TABLE : + TF_KEY1_TABLE)]; + key_obj.offset = (index * TF_EM_KEY_RECORD_SIZE) % TF_EM_PAGE_SIZE; + key_obj.data = NULL; + key_obj.size = TF_EM_KEY_RECORD_SIZE; - if (parms->flow_handle == 0) + rc = hcapi_cfa_key_hw_op(&op, + &key_tbl, + &key_obj, + &key_loc); + + if (!rc) + return rc; + + return 0; +} + +/** insert EM hash entry API + * + * returns: + * 0 - Success + * -EINVAL - Error + */ +int tf_em_insert_entry(struct tf *tfp, + struct tf_insert_em_entry_parms *parms) +{ + struct tf_tbl_scope_cb *tbl_scope_cb; + + tbl_scope_cb = tbl_scope_cb_find + ((struct tf_session *)(tfp->session->core_data), + parms->tbl_scope_id); + if (tbl_scope_cb == NULL) { + TFP_DRV_LOG(ERR, "Invalid tbl_scope_cb\n"); return -EINVAL; + } - TF_GET_HASH_TYPE_FROM_FLOW_HANDLE(parms->flow_handle, hash_type); - TF_GET_INDEX_FROM_FLOW_HANDLE(parms->flow_handle, index); + /* Process the EM entry per Table Scope type */ + if (parms->mem == TF_MEM_EXTERNAL) + /* External EEM */ + return tf_insert_eem_entry + (tbl_scope_cb, parms); + else if (parms->mem == TF_MEM_INTERNAL) + /* Internal EM */ + return tf_insert_em_internal_entry(tfp, parms); - if (tf_em_entry_exists(tbl_scope_cb, - NULL, - index, - hash_type, - parms->dir) == -EEXIST) { - tf_em_write_entry(tbl_scope_cb, - &zero_key_entry, - TF_EM_KEY_RECORD_SIZE, - index, - hash_type, - parms->dir); + return -EINVAL; +} - return 0; +/** Delete EM hash entry API + * + * returns: + * 0 - Success + * -EINVAL - Error + */ +int tf_em_delete_entry(struct tf *tfp, + struct tf_delete_em_entry_parms *parms) +{ + struct tf_tbl_scope_cb *tbl_scope_cb; + + tbl_scope_cb = tbl_scope_cb_find + ((struct tf_session *)(tfp->session->core_data), + parms->tbl_scope_id); + if (tbl_scope_cb == NULL) { + TFP_DRV_LOG(ERR, "Invalid tbl_scope_cb\n"); + return -EINVAL; } + if (parms->mem == TF_MEM_EXTERNAL) + return tf_delete_eem_entry(tbl_scope_cb, parms); + else if (parms->mem == TF_MEM_INTERNAL) + return tf_delete_em_internal_entry(tfp, parms); return -EINVAL; }