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authorJon Mason <jon.mason@intel.com>2013-02-12 09:52:50 -0700
committerJon Mason <jon.mason@intel.com>2013-09-05 11:04:09 -0700
commit282a2feeb9bfb1d1dfbad93df206b74eaf80d564 (patch)
tree9265a6308dd746606dbcb0bac330082f97780be9 /drivers/ntb/ntb_hw.h
parentac477afb0431386575ef453f50fa0052c3f0461b (diff)
downloadlinux-282a2feeb9bfb1d1dfbad93df206b74eaf80d564.tar.bz2
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.h1
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);