Lines Matching +full:slave +full:- +full:mode

8           ``Documentation/crypto/async-tx-api.rst``
11 Below is a guide to device driver writers on how to use the Slave-DMA API of the
12 DMA Engine. This is applicable only for slave DMA usage only.
17 The slave DMA usage consists of following steps:
19 - Allocate a DMA slave channel
21 - Set slave and controller specific parameters
23 - Get a descriptor for transaction
25 - Submit the transaction
27 - Issue pending requests and wait for callback notification
31 1. Allocate a DMA slave channel
33    Channel allocation is slightly different in the slave DMA context,
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51 2. Set slave and controller specific parameters
54    driver. Most of the generic information which a slave DMA can use
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78   For slave usage the various modes of slave transfers supported by the
79   DMA-engine are:
81   - slave_sg: DMA a list of scatter gather buffers from/to a peripheral
83   - peripheral_dma_vec: DMA an array of scatter gather buffers from/to a
87   - dma_cyclic: Perform a cyclic DMA operation from/to a peripheral till the
90   - interleaved_dma: This is common to Slave as well as M2M clients. For slave
97   A non-NULL return of this transfer API represents a "descriptor" for
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150      case for slave/cyclic DMA.
152      For slave DMA, the subsequent transaction may not be available
154      slave DMA callbacks are permitted to prepare and submit a new
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203   Client drivers can query if a given mode is supported with:
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208 		enum dma_desc_metadata_mode mode);
210   Depending on the used mode client drivers must follow different flow.
214     - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
222     - DMA_DEV_TO_MEM:
233     - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
243     - DMA_DEV_TO_MEM:
253      When DESC_METADATA_ENGINE mode is used the metadata area for the descriptor
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301 ------------
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