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authorMike Marciniszyn <mike.marciniszyn@intel.com>2014-03-28 15:04:43 -0400
committerRoland Dreier <roland@purestorage.com>2014-04-01 11:16:31 -0700
commit49c5c27e05c915f0da4c0e756da313cf09ae2c55 (patch)
tree0a000d6a5c89c42990b9cf4a3fb02fc6bdead8fe /drivers/infiniband/hw
parent446bf432a9b084d9f3471eca309cc53fa434ccc7 (diff)
IB/ipath: Remove ib_sg_dma_address() and ib_sg_dma_len() overloads
The removal of these methods is compensated for by code changes to .map_sg to insure that the vanilla sg_dma_address() and sg_dma_len() will do the same thing as the equivalent former ib_sg_dma_address() and ib_sg_dma_len() calls into the drivers. The introduction of this patch required that the struct ipath_dma_mapping_ops be converted to a C99 initializer. Suggested-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_dma.c43
1 files changed, 15 insertions, 28 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_dma.c b/drivers/infiniband/hw/ipath/ipath_dma.c
index 644c2c74e054..123a8c053539 100644
--- a/drivers/infiniband/hw/ipath/ipath_dma.c
+++ b/drivers/infiniband/hw/ipath/ipath_dma.c
@@ -115,6 +115,10 @@ static int ipath_map_sg(struct ib_device *dev, struct scatterlist *sgl,
ret = 0;
break;
}
+ sg->dma_address = addr + sg->offset;
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+ sg->dma_length = sg->length;
+#endif
}
return ret;
}
@@ -126,21 +130,6 @@ static void ipath_unmap_sg(struct ib_device *dev,
BUG_ON(!valid_dma_direction(direction));
}
-static u64 ipath_sg_dma_address(struct ib_device *dev, struct scatterlist *sg)
-{
- u64 addr = (u64) page_address(sg_page(sg));
-
- if (addr)
- addr += sg->offset;
- return addr;
-}
-
-static unsigned int ipath_sg_dma_len(struct ib_device *dev,
- struct scatterlist *sg)
-{
- return sg->length;
-}
-
static void ipath_sync_single_for_cpu(struct ib_device *dev,
u64 addr,
size_t size,
@@ -176,17 +165,15 @@ static void ipath_dma_free_coherent(struct ib_device *dev, size_t size,
}
struct ib_dma_mapping_ops ipath_dma_mapping_ops = {
- ipath_mapping_error,
- ipath_dma_map_single,
- ipath_dma_unmap_single,
- ipath_dma_map_page,
- ipath_dma_unmap_page,
- ipath_map_sg,
- ipath_unmap_sg,
- ipath_sg_dma_address,
- ipath_sg_dma_len,
- ipath_sync_single_for_cpu,
- ipath_sync_single_for_device,
- ipath_dma_alloc_coherent,
- ipath_dma_free_coherent
+ .mapping_error = ipath_mapping_error,
+ .map_single = ipath_dma_map_single,
+ .unmap_single = ipath_dma_unmap_single,
+ .map_page = ipath_dma_map_page,
+ .unmap_page = ipath_dma_unmap_page,
+ .map_sg = ipath_map_sg,
+ .unmap_sg = ipath_unmap_sg,
+ .sync_single_for_cpu = ipath_sync_single_for_cpu,
+ .sync_single_for_device = ipath_sync_single_for_device,
+ .alloc_coherent = ipath_dma_alloc_coherent,
+ .free_coherent = ipath_dma_free_coherent
};