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authorVladimir Sokolovsky <vlad@mellanox.co.il>2008-09-15 14:25:23 -0700
committerRoland Dreier <rolandd@cisco.com>2008-09-15 14:25:23 -0700
commit29bdc88384c2b24e37e5760df0dc898546083d6b (patch)
tree9d8fe16ac4728ab669f81a763effda21301d9ddf
parentc9257433f2eaf8803a1f3d3be5d984232db41ffe (diff)
downloadlinux-linaro-android-29bdc88384c2b24e37e5760df0dc898546083d6b.tar.gz
IB/mlx4: Fix up fast register page list format
Byte swap the addresses in the page list for fast register work requests to big endian to match what the HCA expectx. Also, the addresses must have the "present" bit set so that the HCA knows it can access them. Otherwise the HCA will fault the first time it accesses the memory region. Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c6
-rw-r--r--drivers/net/mlx4/mr.c2
-rw-r--r--include/linux/mlx4/device.h4
3 files changed, 10 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index f29dbb767e8..9559248f265 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1342,6 +1342,12 @@ static __be32 convert_access(int acc)
static void set_fmr_seg(struct mlx4_wqe_fmr_seg *fseg, struct ib_send_wr *wr)
{
struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list);
+ int i;
+
+ for (i = 0; i < wr->wr.fast_reg.page_list_len; ++i)
+ wr->wr.fast_reg.page_list->page_list[i] =
+ cpu_to_be64(wr->wr.fast_reg.page_list->page_list[i] |
+ MLX4_MTT_FLAG_PRESENT);
fseg->flags = convert_access(wr->wr.fast_reg.access_flags);
fseg->mem_key = cpu_to_be32(wr->wr.fast_reg.rkey);
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
index 644adf074a3..d1dd5b48dbd 100644
--- a/drivers/net/mlx4/mr.c
+++ b/drivers/net/mlx4/mr.c
@@ -71,8 +71,6 @@ struct mlx4_mpt_entry {
#define MLX4_MPT_PD_FLAG_RAE (1 << 28)
#define MLX4_MPT_PD_FLAG_EN_INV (3 << 24)
-#define MLX4_MTT_FLAG_PRESENT 1
-
#define MLX4_MPT_STATUS_SW 0xF0
#define MLX4_MPT_STATUS_HW 0x00
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 655ea0d1ee1..b2f94446831 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -141,6 +141,10 @@ enum {
MLX4_STAT_RATE_OFFSET = 5
};
+enum {
+ MLX4_MTT_FLAG_PRESENT = 1
+};
+
static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
{
return (major << 32) | (minor << 16) | subminor;