mlx5: Use enum to indicate adapter page size

The Connect-IB adapter has an inherent page size which equals 4K.
Define an new enum that equals the page shift and use it instead of
using the value 12 throughout the code.

Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index eecac7b52bcb1b783108badccf94a2df6b8a80a6..28344773f6409858dcd0c0c3bc0889b8afcf9d8b 100644 (file)
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -620,7 +620,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
        }
        mlx5_fill_page_array(&cq->buf.buf, (*cqb)->pas);
 
-       (*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - 12;
+       (*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
        *index = dev->mdev.priv.uuari.uars[0].index;
 
        return 0;

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 5bcf57943b84c7d703a4e26f18fb4d6400ca46d6..7c6b4ba49bec13c920120cb775090bd153354fb5 100644 (file)
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
        }
        mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0);
        (*in)->ctx.log_pg_sz_remote_qpn =
-               cpu_to_be32((page_shift - 12) << 24);
+               cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
        (*in)->ctx.params2 = cpu_to_be32(offset << 6);
 
        (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
@@ -648,7 +648,8 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
                goto err_buf;
        }
        (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
-       (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - 12) << 24);
+       (*in)->ctx.log_pg_sz_remote_qpn =
+               cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
        /* Set "fast registration enabled" for all kernel QPs */
        (*in)->ctx.params1 |= cpu_to_be32(1 << 11);
        (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4);

diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index dbc2c7188c5e0ad8629d7bf21f01ebf57ca193df..210b3eaf188aa25fcf11f657cefe907c8f77f197 100644 (file)
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -123,7 +123,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
                goto err_in;
        }
 
-       (*in)->ctx.log_pg_sz = page_shift - 12;
+       (*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
        (*in)->ctx.pgoff_cqn = cpu_to_be32(offset << 26);
 
        return 0;
@@ -192,7 +192,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
        }
        srq->wq_sig = !!srq_signature;
 
-       (*in)->ctx.log_pg_sz = page_shift - 12;
+       (*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 
        return 0;
 

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 6b4b436840bd9522a40925571b63a95914371428..64a61b286b2c959fbb67c72dcc098199d74ff68d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -354,7 +354,7 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
        in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_EQ);
        in->ctx.log_sz_usr_page = cpu_to_be32(ilog2(eq->nent) << 24 | uar->index);
        in->ctx.intr = vecidx;
-       in->ctx.log_page_size = eq->buf.page_shift - 12;
+       in->ctx.log_page_size = eq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
        in->events_mask = cpu_to_be64(mask);
 
        err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));

diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 3d789f43e34b4b558be4f33431d054c7b52e4311..da78875807fc33bb7c77dff5d374e474ba815f31 100644 (file)
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -230,6 +230,10 @@ enum {
        MLX5_MAX_PAGE_SHIFT             = 31
 };
 
+enum {
+       MLX5_ADAPTER_PAGE_SHIFT         = 12
+};
+
 enum {
        MLX5_CAP_OFF_DCT                = 41,
        MLX5_CAP_OFF_CMDIF_CSUM         = 46,