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| author | Bart Van Assche | 2017-01-20 22:04:07 +0100 |
|---|---|---|
| committer | Doug Ledford | 2017-01-24 18:23:35 +0100 |
| commit | 551199aca1c3102ebed390566d681cc1290284ca (patch) | |
| tree | a093ec747368b2b0fa7d9e7e1e95032502f89541 /include/linux/dma-mapping.h | |
| parent | lib/dma-noop: Only build dma_noop_ops for s390 and m32r (diff) | |
| download | kernel-qcow2-linux-551199aca1c3102ebed390566d681cc1290284ca.tar.gz kernel-qcow2-linux-551199aca1c3102ebed390566d681cc1290284ca.tar.xz kernel-qcow2-linux-551199aca1c3102ebed390566d681cc1290284ca.zip | |
lib/dma-virt: Add dma_virt_ops
Several RDMA drivers (hfi1, qib and rxe) expect that ib_sge.addr
is a virtual address. Provide DMA mapping operations that are
suitable for these drivers.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index ab8710888ddf..426c43d4fdbf 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -128,6 +128,7 @@ struct dma_map_ops { }; extern const struct dma_map_ops dma_noop_ops; +extern const struct dma_map_ops dma_virt_ops; #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) |