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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-07-24 14:41:13 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2007-10-16 11:20:59 +0200 |
| commit | 53d412fce05e73dd0b25b0ebfa83c7ee94f16451 (patch) | |
| tree | 3aca42d6408bfcded0d5e829a9446a1c04af9b21 /drivers/infiniband/hw | |
| parent | aha1542: convert to use the data buffer accessors (diff) | |
| download | linux-53d412fce05e73dd0b25b0ebfa83c7ee94f16451.tar.xz linux-53d412fce05e73dd0b25b0ebfa83c7ee94f16451.zip | |
infiniband: sg chaining support
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_dma.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_dma.c b/drivers/infiniband/hw/ipath/ipath_dma.c index f87f003e3ef8..22709a4f8fc8 100644 --- a/drivers/infiniband/hw/ipath/ipath_dma.c +++ b/drivers/infiniband/hw/ipath/ipath_dma.c @@ -30,6 +30,7 @@ * SOFTWARE. */ +#include <linux/scatterlist.h> #include <rdma/ib_verbs.h> #include "ipath_verbs.h" @@ -96,17 +97,18 @@ static void ipath_dma_unmap_page(struct ib_device *dev, BUG_ON(!valid_dma_direction(direction)); } -static int ipath_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction) +static int ipath_map_sg(struct ib_device *dev, struct scatterlist *sgl, + int nents, enum dma_data_direction direction) { + struct scatterlist *sg; u64 addr; int i; int ret = nents; BUG_ON(!valid_dma_direction(direction)); - for (i = 0; i < nents; i++) { - addr = (u64) page_address(sg[i].page); + for_each_sg(sgl, sg, nents, i) { + addr = (u64) page_address(sg->page); /* TODO: handle highmem pages */ if (!addr) { ret = 0; |