From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Handle atomic was left as unimplemented from 2013,
remove the code till this part will be developed.
Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/cq.c | 62 ----------------------------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 -
2 files changed, 63 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 0b99f7d0630d..38b9ecd65f71 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -330,67 +330,6 @@ static void mlx5_handle_error_cqe(struct mlx5_ib_dev *dev,
dump_cqe(dev, cqe);
}
-static int is_atomic_response(struct mlx5_ib_qp *qp, uint16_t idx)
-{
- /* TBD: waiting decision
- */
- return 0;
-}
-
-static void *mlx5_get_atomic_laddr(struct mlx5_ib_qp *qp, uint16_t idx)
-{
- struct mlx5_wqe_data_seg *dpseg;
- void *addr;
-
- dpseg = mlx5_get_send_wqe(qp, idx) + sizeof(struct mlx5_wqe_ctrl_seg) +
- sizeof(struct mlx5_wqe_raddr_seg) +
- sizeof(struct mlx5_wqe_atomic_seg);
- addr = (void *)(unsigned long)be64_to_cpu(dpseg->addr);
- return addr;
-}
-
-static void handle_atomic(struct mlx5_ib_qp *qp, struct mlx5_cqe64 *cqe64,
- uint16_t idx)
-{
- void *addr;
- int byte_count;
- int i;
-
- if (!is_atomic_response(qp, idx))
- return;
-
- byte_count = be32_to_cpu(cqe64->byte_cnt);
- addr = mlx5_get_atomic_laddr(qp, idx);
-
- if (byte_count == 4) {
- *(uint32_t *)addr = be32_to_cpu(*((__be32 *)addr));
- } else {
- for (i = 0; i < byte_count; i += 8) {
- *(uint64_t *)addr = be64_to_cpu(*((__be64 *)addr));
- addr += 8;
- }
- }
-
- return;
-}
-
-static void handle_atomics(struct mlx5_ib_qp *qp, struct mlx5_cqe64 *cqe64,
- u16 tail, u16 head)
-{
- u16 idx;
-
- do {
- idx = tail & (qp->sq.wqe_cnt - 1);
- handle_atomic(qp, cqe64, idx);
- if (idx == head)
- break;
-
- tail = qp->sq.w_list[idx].next;
- } while (1);
- tail = qp->sq.w_list[idx].next;
- qp->sq.last_poll = tail;
-}
-
static void free_cq_buf(struct mlx5_ib_dev *dev, struct mlx5_ib_cq_buf *buf)
{
mlx5_frag_buf_free(dev->mdev, &buf->frag_buf);
@@ -567,7 +506,6 @@ static int mlx5_poll_one(struct mlx5_ib_cq *cq,
wqe_ctr = be16_to_cpu(cqe64->wqe_counter);
idx = wqe_ctr & (wq->wqe_cnt - 1);
handle_good_req(wc, cqe64, wq, idx);
- handle_atomics(*cur_qp, cqe64, wq->last_poll, idx);
wc->wr_id = wq->wrid[idx];
wq->tail = wq->wqe_head[idx] + 1;
wc->status = IB_WC_SUCCESS;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 0c96d2993f41..a98a36273a18 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1071,7 +1071,6 @@ int mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
const struct ib_send_wr **bad_wr);
int mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
-void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n);
int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
void *buffer, u32 length,
struct mlx5_ib_qp_base *base);
--
2.19.1
