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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-19 12:29:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-19 12:29:23 -0700
commit2eb7f910c158fd675ab33aff67904512779996e8 (patch)
treecc5b453afad998da001ee3611f358b7bdc218981 /drivers/infiniband/hw/mlx5/mem.c
parent1f6075f99073a8b5ec9649ae8c0bf2e06fdd42f1 (diff)
parent7b909bb49ac204bfd2e628707db37beb490dbc5c (diff)
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/RDMA updates from Roland Dreier: - large set of iSER initiator improvements - hardware driver fixes for cxgb4, mlx5 and ocrdma - small fixes to core midlayer * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits) RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line RDMA/cxgb4: Add missing neigh_release in find_route RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss RDMA/cxgb4: Make c4iw_wr_log_size_order static IB/core: Fix XRC race condition in ib_uverbs_open_qp IB/core: Clear AH attr variable to prevent garbage data RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc() RDMA/ocrdma: Remove a unused-label warning RDMA/ocrdma: Convert kernel VA to PA for mmap in user RDMA/ocrdma: Get vlan tag from ib_qp_attrs RDMA/ocrdma: Add default GID at index 0 IB/mlx5, iser, isert: Add Signature API additions Target/iser: Centralize ib_sig_domain setting IB/iser: Centralize ib_sig_domain settings IB/mlx5: Use extended internal signature layout IB/iser: Set IP_CSUM as default guard type IB/iser: Remove redundant assignment IB/mlx5: Use enumerations for PI copy mask ...
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mem.c')
-rw-r--r--drivers/infiniband/hw/mlx5/mem.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c
index a3e81444c82..dae07eae950 100644
--- a/drivers/infiniband/hw/mlx5/mem.c
+++ b/drivers/infiniband/hw/mlx5/mem.c
@@ -55,16 +55,17 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
u64 pfn;
struct scatterlist *sg;
int entry;
+ unsigned long page_shift = ilog2(umem->page_size);
- addr = addr >> PAGE_SHIFT;
+ addr = addr >> page_shift;
tmp = (unsigned long)addr;
m = find_first_bit(&tmp, sizeof(tmp));
skip = 1 << m;
mask = skip - 1;
i = 0;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
- len = sg_dma_len(sg) >> PAGE_SHIFT;
- pfn = sg_dma_address(sg) >> PAGE_SHIFT;
+ len = sg_dma_len(sg) >> page_shift;
+ pfn = sg_dma_address(sg) >> page_shift;
for (k = 0; k < len; k++) {
if (!(i & mask)) {
tmp = (unsigned long)pfn;
@@ -103,14 +104,15 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
*ncont = 0;
}
- *shift = PAGE_SHIFT + m;
+ *shift = page_shift + m;
*count = i;
}
void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, __be64 *pas, int umr)
{
- int shift = page_shift - PAGE_SHIFT;
+ unsigned long umem_page_shift = ilog2(umem->page_size);
+ int shift = page_shift - umem_page_shift;
int mask = (1 << shift) - 1;
int i, k;
u64 cur = 0;
@@ -121,11 +123,11 @@ void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
i = 0;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
- len = sg_dma_len(sg) >> PAGE_SHIFT;
+ len = sg_dma_len(sg) >> umem_page_shift;
base = sg_dma_address(sg);
for (k = 0; k < len; k++) {
if (!(i & mask)) {
- cur = base + (k << PAGE_SHIFT);
+ cur = base + (k << umem_page_shift);
if (umr)
cur |= 3;
@@ -134,7 +136,7 @@ void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
i >> shift, be64_to_cpu(pas[i >> shift]));
} else
mlx5_ib_dbg(dev, "=====> 0x%llx\n",
- base + (k << PAGE_SHIFT));
+ base + (k << umem_page_shift));
i++;
}
}