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| author | Suren A. Chilingaryan <csa@suren.me> | 2015-08-06 05:27:21 +0200 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2015-08-06 05:27:21 +0200 |
| commit | ccbad1cc8eca5f361427dd0ceca15cfa6d68a6d9 (patch) | |
| tree | 0e7e6c1fbf7a22966570062d6ec323cb59ee2a02 /dma/ipe_private.h | |
| parent | d60dd48eec0ef5d7bf2feca9b3f06374a2f444aa (diff) | |
| download | pcitool-ccbad1cc8eca5f361427dd0ceca15cfa6d68a6d9.tar.gz pcitool-ccbad1cc8eca5f361427dd0ceca15cfa6d68a6d9.tar.bz2 pcitool-ccbad1cc8eca5f361427dd0ceca15cfa6d68a6d9.tar.xz pcitool-ccbad1cc8eca5f361427dd0ceca15cfa6d68a6d9.zip | |
Detect if IPEDMA operates in streaming mode
Diffstat (limited to 'dma/ipe_private.h')
| -rw-r--r-- | dma/ipe_private.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/dma/ipe_private.h b/dma/ipe_private.h index 937e202..fdebec0 100644 --- a/dma/ipe_private.h +++ b/dma/ipe_private.h @@ -8,7 +8,7 @@ #define IPEDMA_MAX_TLP_SIZE 256 /**< Defines maximum TLP in bytes supported by device */ //#define IPEDMA_TLP_SIZE 128 /**< If set, enforces the specified TLP size */ -//#define IPEDMA_STREAMING_MODE /**< Enables streaming DMA operation mode instead of ring-buffer, the page is written once and forgotten and need to be pushed in queue again */ +#define IPEDMA_STREAMING_MODE /**< Enables streaming DMA operation mode instead of ring-buffer, the page is written once and forgotten and need to be pushed in queue again */ #define IPEDMA_STREAMING_CHECKS /**< Enables status checks in streaming mode (it will cause performance penalty) */ #define IPEDMA_PAGE_SIZE 4096 #define IPEDMA_DMA_PAGES 1024 /**< number of DMA pages in the ring buffer to allocate */ @@ -17,7 +17,6 @@ #define IPEDMA_DESCRIPTOR_ALIGNMENT 64 -//#define IPEDMA_BUG_DMARD /**< No register read during DMA transfer */ //#define IPEDMA_BUG_LAST_READ /**< We should forbid writting the second last available DMA buffer (the last is forbidden by design) */ //#define IPEDMA_DETECT_PACKETS /**< Using empty_deceted flag */ #define IPEDMA_SUPPORT_EMPTY_DETECTED /**< Avoid waiting for data when empty_detected flag is set in hardware */ @@ -39,6 +38,9 @@ #define IPEDMA_REG_UPDATE_THRESHOLD 0x60 #define IPEDMA_REG_STREAMING_STATUS 0x68 +#define IPEDMA_MASK_PCIE_GEN 0xF +#define IPEDMA_MASK_STREAMING_MODE 0x10 + #define WR(addr, value) { *(uint32_t*)(ctx->base_addr + addr) = value; } #define RD(addr, value) { value = *(uint32_t*)(ctx->base_addr + addr); } @@ -62,6 +64,7 @@ struct ipe_dma_s { int reused; /**< indicates that DMA was found intialized, buffers were reused, and no additional initialization is needed */ int preserve; /**< indicates that DMA should not be stopped during clean-up */ int mode64; /**< indicates 64-bit operation mode */ + int streaming; /**< indicates if DMA is operating in streaming or ring-buffer mode */ pcilib_kmem_handle_t *desc; /**< in-memory status descriptor written by DMA engine upon operation progess */ pcilib_kmem_handle_t *pages; /**< collection of memory-locked pages for DMA operation */ |