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IB/mlx4: Fix up fast register page list format

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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>
This commit is contained in:
Vladimir Sokolovsky 2008-09-15 14:25:23 -07:00 committed by Roland Dreier
parent c9257433f2
commit 29bdc88384
3 changed files with 10 additions and 2 deletions
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6
drivers/infiniband/hw/mlx4/qp.c
View file

@ -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);

2
drivers/net/mlx4/mr.c
View file

@ -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

4
include/linux/mlx4/device.h
View file

@ -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;