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net/mlx5_core: Modify arm CQ in preparation for upcoming Ethernet driver

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Pass consumer index as a parameter to arm CQ

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Saeed Mahameed 2015-04-02 17:07:33 +03:00 committed by David S. Miller
parent 233d05d28a
commit ce0f750932
2 changed files with 9 additions and 4 deletions
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8
drivers/infiniband/hw/mlx5/cq.c
View File

@ -572,11 +572,15 @@ int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{
struct mlx5_core_dev *mdev = to_mdev(ibcq->device)->mdev;
void __iomem *uar_page = mdev->priv.uuari.uars[0].map;
mlx5_cq_arm(&to_mcq(ibcq)->mcq,
(flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
MLX5_CQ_DB_REQ_NOT_SOL : MLX5_CQ_DB_REQ_NOT,
to_mdev(ibcq->device)->mdev->priv.uuari.uars[0].map,
MLX5_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->mdev->priv.cq_uar_lock));
uar_page,
MLX5_GET_DOORBELL_LOCK(&mdev->priv.cq_uar_lock),
to_mcq(ibcq)->mcq.cons_index);
return 0;
}

5
include/linux/mlx5/cq.h
View File

@ -137,14 +137,15 @@ enum {
static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd,
void __iomem *uar_page,
spinlock_t *doorbell_lock)
spinlock_t *doorbell_lock,
u32 cons_index)
{
__be32 doorbell[2];
u32 sn;
u32 ci;
sn = cq->arm_sn & 3;
ci = cq->cons_index & 0xffffff;
ci = cons_index & 0xffffff;
*cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci);