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| author | Jon Mason <jon.mason@intel.com> | 2013-02-12 17:52:50 +0100 |
|---|---|---|
| committer | Jon Mason <jon.mason@intel.com> | 2013-09-05 20:04:09 +0200 |
| commit | 282a2feeb9bfb1d1dfbad93df206b74eaf80d564 (patch) | |
| tree | 9265a6308dd746606dbcb0bac330082f97780be9 /drivers/ntb/ntb_hw.h | |
| parent | NTB: Enable 32bit Support (diff) | |
| download | linux-282a2feeb9bfb1d1dfbad93df206b74eaf80d564.tar.xz linux-282a2feeb9bfb1d1dfbad93df206b74eaf80d564.zip | |
NTB: Use DMA Engine to Transmit and Receive
Allocate and use a DMA engine channel to transmit and receive data over
NTB. If none is allocated, fall back to using the CPU to transfer data.
Signed-off-by: Jon Mason <jon.mason@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Diffstat (limited to 'drivers/ntb/ntb_hw.h')
| -rw-r--r-- | drivers/ntb/ntb_hw.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h index d838bc13b956..4f42ed18103a 100644 --- a/drivers/ntb/ntb_hw.h +++ b/drivers/ntb/ntb_hw.h @@ -240,6 +240,7 @@ int ntb_write_local_spad(struct ntb_device *ndev, unsigned int idx, u32 val); int ntb_read_local_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); int ntb_write_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 val); int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); +resource_size_t ntb_get_mw_base(struct ntb_device *ndev, unsigned int mw); void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw); u64 ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw); void ntb_ring_sdb(struct ntb_device *ndev, unsigned int idx); |