From 6cf30adc2cd3aa818e5d97cf71ea8b2fc2aaefa7 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Tue, 4 Apr 2017 23:08:23 -0700 Subject: Session layer refactoring Major refactoring of the session layer api - Add attatch api for application binding to the the session layer - Simplify listen/connect calls - Update application CLI - Add transport endpoint to accept callback - Associate segment manager to application and allow for multiple binds/connects per app Additional: - svm fifo cleanup - add fifo free, format fns - add fifo offset enqueue unit test Change-Id: Id93a65047de61afc2bf3d58c9b544339c02065af Signed-off-by: Florin Coras Signed-off-by: Dave Barach --- src/vnet/session/segment_manager.h | 106 +++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 src/vnet/session/segment_manager.h (limited to 'src/vnet/session/segment_manager.h') diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h new file mode 100644 index 00000000000..778d6040e94 --- /dev/null +++ b/src/vnet/session/segment_manager.h @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef SRC_VNET_SESSION_SEGMENT_MANAGER_H_ +#define SRC_VNET_SESSION_SEGMENT_MANAGER_H_ + +#include +#include + +typedef struct _segment_manager_properties +{ + /** Session fifo sizes. */ + u32 rx_fifo_size; + u32 tx_fifo_size; + + /** Configured additional segment size */ + u32 add_segment_size; + + /** Flag that indicates if additional segments should be created */ + u8 add_segment; + +} segment_manager_properties_t; + +typedef struct _segment_manager +{ + /** segments mapped by this manager */ + u32 *segment_indices; + + /** Owner app index */ + u32 app_index; + + /** Pointer to manager properties. Could be shared among all of + * an app's segment managers s*/ + segment_manager_properties_t *properties; +} segment_manager_t; + +/** Pool of segment managers */ +extern segment_manager_t *segment_managers; + +always_inline segment_manager_t * +segment_manager_new () +{ + segment_manager_t *sm; + pool_get (segment_managers, sm); + memset (sm, 0, sizeof (*sm)); + return sm; +} + +always_inline segment_manager_t * +segment_manager_get (u32 index) +{ + return pool_elt_at_index (segment_managers, index); +} + +always_inline segment_manager_t * +segment_manager_get_if_valid (u32 index) +{ + if (pool_is_free_index (segment_managers, index)) + return 0; + return pool_elt_at_index (segment_managers, index); +} + +always_inline u32 +segment_manager_index (segment_manager_t * sm) +{ + return sm - segment_managers; +} + +int +segment_manager_init (segment_manager_t * sm, + segment_manager_properties_t * properties, + u32 seg_size); + +void segment_manager_get_segment_info (u32 index, u8 ** name, u32 * size); +int +session_manager_add_first_segment (segment_manager_t * sm, u32 segment_size); +int session_manager_add_segment (segment_manager_t * sm); +void segment_manager_del (segment_manager_t * sm); +int +segment_manager_alloc_session_fifos (segment_manager_t * sm, + svm_fifo_t ** server_rx_fifo, + svm_fifo_t ** server_tx_fifo, + u32 * fifo_segment_index); +void +segment_manager_dealloc_fifos (u32 svm_segment_index, svm_fifo_t * rx_fifo, + svm_fifo_t * tx_fifo); + +#endif /* SRC_VNET_SESSION_SEGMENT_MANAGER_H_ */ +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg