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Linux Kernel
3.7.1
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Linux Kernel
3.7.1
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Go to the source code of this file.
Data Structures | |
| struct | sep_dcblock |
| struct | build_dcb_struct |
| struct | build_dcb_struct_kernel |
| struct | sep_dma_map |
| struct | sep_dma_resource |
| struct | rar_hndl_to_bus_struct |
| struct | sep_lli_entry |
| struct | sep_fastcall_hdr |
| struct | sep_call_status |
| struct | sep_dma_context |
| struct | sep_private_data |
Macros | |
| #define | SEP_DRIVER_SRC_REPLY 1 |
| #define | SEP_DRIVER_SRC_REQ 2 |
| #define | SEP_DRIVER_SRC_PRINTF 3 |
| #define | SEP_DRIVER_POWERON 1 |
| #define | SEP_DRIVER_POWEROFF 2 |
Enumerations | |
| enum | type_of_request { NO_REQUEST, AES_CBC, AES_ECB, DES_CBC, DES_ECB, DES3_ECB, DES3_CBC, SHA1, MD5, SHA224, SHA256 } |
| enum | hash_stage { HASH_INIT, HASH_UPDATE, HASH_FINISH, HASH_DIGEST, HASH_FINUP_DATA, HASH_FINUP_FINISH } |
Functions | |
| void | sep_queue_status_remove (struct sep_device *sep, struct sep_queue_info **queue_elem) |
| #define SEP_DRIVER_POWEROFF 2 |
Definition at line 43 of file sep_driver_api.h.
| #define SEP_DRIVER_POWERON 1 |
Definition at line 42 of file sep_driver_api.h.
| #define SEP_DRIVER_SRC_PRINTF 3 |
Definition at line 39 of file sep_driver_api.h.
| #define SEP_DRIVER_SRC_REPLY 1 |
Definition at line 37 of file sep_driver_api.h.
| #define SEP_DRIVER_SRC_REQ 2 |
Definition at line 38 of file sep_driver_api.h.
| #define SEP_IOC_MAGIC_NUMBER 's' |
IOCTL command defines
Definition at line 378 of file sep_driver_api.h.
| #define SEP_IOCENDTRANSACTION _IO(SEP_IOC_MAGIC_NUMBER, 15) |
Definition at line 385 of file sep_driver_api.h.
| #define SEP_IOCFREEDCB _IO(SEP_IOC_MAGIC_NUMBER, 36) |
Definition at line 391 of file sep_driver_api.h.
| #define SEP_IOCFREEDCB_SECURE_DMA _IO(SEP_IOC_MAGIC_NUMBER, 39) |
Definition at line 399 of file sep_driver_api.h.
| #define SEP_IOCPREPAREDCB _IOW(SEP_IOC_MAGIC_NUMBER, 35, struct build_dcb_struct) |
Definition at line 388 of file sep_driver_api.h.
| #define SEP_IOCPREPAREDCB_SECURE_DMA _IOW(SEP_IOC_MAGIC_NUMBER, 38, struct build_dcb_struct) |
Definition at line 396 of file sep_driver_api.h.
| #define SEP_IOCSENDSEPCOMMAND _IO(SEP_IOC_MAGIC_NUMBER, 0) |
Definition at line 381 of file sep_driver_api.h.
| enum hash_stage |
Definition at line 60 of file sep_driver_api.h.
| enum type_of_request |
Definition at line 46 of file sep_driver_api.h.
| ssize_t sep_activate_dcb_dmatables_context | ( | struct sep_device * | sep, |
| struct sep_dcblock ** | dcb_region, | ||
| void ** | dmatables_region, | ||
| struct sep_dma_context * | dma_ctx | ||
| ) |
sep_activate_dcb_dmatables_context - Takes DCB & DMA tables contexts into use : SEP device : DCB region copy : MLLI/DMA tables copy : DMA context for current transaction
Definition at line 3300 of file sep_main.c.
| int sep_create_dcb_dmatables_context_kernel | ( | struct sep_device * | sep, |
| struct sep_dcblock ** | dcb_region, | ||
| void ** | dmatables_region, | ||
| struct sep_dma_context ** | dma_ctx, | ||
| const struct build_dcb_struct_kernel * | dcb_data, | ||
| const u32 | num_dcbs | ||
| ) |
sep_create_dcb_dmatables_context_kernel - Creates DCB & MLLI/DMA table context for kernel crypto : SEP device : DCB region buf to create for current transaction : MLLI/DMA tables buf to create for current transaction : DMA context buf to create for current transaction : User arguments for DCB/MLLI creation : Number of DCBs to create
sep_create_dcb_dmatables_context_kernel - Creates DCB & MLLI/DMA table context for kernel crypto : SEP device : DCB region buf to create for current transaction : MLLI/DMA tables buf to create for current transaction : DMA context buf to create for current transaction : User arguments for DCB/MLLI creation : Number of DCBs to create This does that same thing as sep_create_dcb_dmatables_context except that it is used only for the kernel crypto operation. It is separate because there is no user data involved; the dcb data structure is specific for kernel crypto (build_dcb_struct_kernel)
Definition at line 3491 of file sep_main.c.
| int sep_free_dma_table_data_handler | ( | struct sep_device * | sep, |
| struct sep_dma_context ** | dma_ctx | ||
| ) |
sep_free_dma_table_data_handler - free DMA table : pointer to struct sep_device : dma context
Handles the request to free DMA table for synchronic actions
Output is handled different. If this was a secure dma into restricted memory, then we skip this step altogether as restricted memory is not available to the o/s at all.
Note that here we use in_map_num_entries because we don't have a page array; the page array is generated only in the lock_user_pages, which is not called for kernel crypto, which is what the sg (scatter gather is used for exclusively)
Definition at line 454 of file sep_main.c.
| int sep_prepare_input_output_dma_table_in_dcb | ( | struct sep_device * | sep, |
| unsigned long | app_in_address, | ||
| unsigned long | app_out_address, | ||
| u32 | data_in_size, | ||
| u32 | block_size, | ||
| u32 | tail_block_size, | ||
| bool | isapplet, | ||
| bool | is_kva, | ||
| bool | secure_dma, | ||
| struct sep_dcblock * | dcb_region, | ||
| void ** | dmatables_region, | ||
| struct sep_dma_context ** | dma_ctx, | ||
| struct scatterlist * | src_sg, | ||
| struct scatterlist * | dst_sg | ||
| ) |
sep_prepare_input_output_dma_table_in_dcb - prepare control blocks : unsigned long; for data buffer in (user space) : unsigned long; for data buffer out (user space) : u32; for size of data : u32; for block size : u32; for size of tail block : bool; to indicate external app : bool; kernel buffer; only used for kernel crypto module ; indicates whether this is secure_dma using IMR
This function prepares the linked DMA tables and puts the address for the linked list of tables inta a DCB (data control block) the address of which is known by the SEP hardware Note that all bus addresses that are passed to the SEP are in 32 bit format; the SEP is a 32 bit device
Definition at line 2626 of file sep_main.c.
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read |
Definition at line 149 of file sep_main.c.
| void sep_queue_status_remove | ( | struct sep_device * | sep, |
| struct sep_queue_info ** | queue_elem | ||
| ) |
sep_queue_status_remove - Removes transaction from status queue : SEP device : pointer to status queue
This function will removes information about transaction from the queue.
sep_queue_status_remove - Removes transaction from status queue : SEP device : pointer to status queue
This function will remove information about transaction from the queue.
Definition at line 110 of file sep_main.c.
| int sep_send_command_handler | ( | struct sep_device * | sep | ) |
sep_send_command_handler - kick off a command : SEP being signalled
This function raises interrupt to SEP that signals that is has a new command from the host
Note that this function does fall under the ioctl lock
Definition at line 895 of file sep_main.c.
| int sep_wait_transaction | ( | struct sep_device * | sep | ) |
sep_wait_transaction - Used for synchronizing transactions : SEP device
Definition at line 247 of file sep_main.c.
1.8.2