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authorIra Weiny <ira.weiny@intel.com>2015-05-13 20:02:58 -0400
committerDoug Ledford <dledford@redhat.com>2015-05-20 12:38:13 -0400
commit7738613e7cb419179545910744b1777d87edac5c (patch)
treefb2f63a6dd2b81c536cff96e2e60ca3c2173e82d /drivers/infiniband/hw/mlx5/main.c
parentIB/user_mad: Fix buggy usage of port index (diff)
downloadlinux-dev-7738613e7cb419179545910744b1777d87edac5c.tar.xz
linux-dev-7738613e7cb419179545910744b1777d87edac5c.zip
IB/core: Add per port immutable struct to ib_device
As of commit 5eb620c81ce3 "IB/core: Add helpers for uncached GID and P_Key searches"; pkey_tbl_len and gid_tbl_len are immutable data which are stored in the ib_device. The per port core capability flags to be added later are also immutable data to be stored in the ib_device object. In preparation for this create a structure for per port immutable data and place the pkey and gid table lengths within this structure. "get_port_immutable" is added as a mandatory device function to allow the drivers to fill in this data. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
-rw-r--r--drivers/infiniband/hw/mlx5/main.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 8dec38055c49..8db0edca6dd8 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1188,6 +1188,22 @@ static void destroy_dev_resources(struct mlx5_ib_resources *devr)
mlx5_ib_dealloc_pd(devr->p0);
}
+static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num,
+ struct ib_port_immutable *immutable)
+{
+ struct ib_port_attr attr;
+ int err;
+
+ err = mlx5_ib_query_port(ibdev, port_num, &attr);
+ if (err)
+ return err;
+
+ immutable->pkey_tbl_len = attr.pkey_tbl_len;
+ immutable->gid_tbl_len = attr.gid_tbl_len;
+
+ return 0;
+}
+
static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
{
struct mlx5_ib_dev *dev;
@@ -1292,6 +1308,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
dev->ib_dev.alloc_fast_reg_page_list = mlx5_ib_alloc_fast_reg_page_list;
dev->ib_dev.free_fast_reg_page_list = mlx5_ib_free_fast_reg_page_list;
dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status;
+ dev->ib_dev.get_port_immutable = mlx5_port_immutable;
mlx5_ib_internal_query_odp_caps(dev);