@@ -1,3 +1,4 @@
obj-$(CONFIG_MLX5_INFINIBAND) += mlx5_ib.o
mlx5_ib-y := main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o
+mlx5_ib-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += odp.o
@@ -320,6 +320,12 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
props->max_mcast_grp;
props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ if (dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG)
+ props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
+ props->odp_caps = dev->odp_caps;
+#endif
+
out:
kfree(in_mad);
kfree(out_mad);
@@ -1399,6 +1405,8 @@ static int init_one(struct pci_dev *pdev,
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
(1ull << IB_USER_VERBS_CMD_OPEN_QP);
+ dev->ib_dev.uverbs_ex_cmd_mask =
+ (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE);
dev->ib_dev.query_device = mlx5_ib_query_device;
dev->ib_dev.query_port = mlx5_ib_query_port;
@@ -1444,6 +1452,8 @@ static int init_one(struct pci_dev *pdev,
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;
+ mlx5_ib_internal_query_odp_caps(dev);
+
if (mdev->caps.flags & MLX5_DEV_CAP_FLAG_XRC) {
dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd;
dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd;
@@ -392,6 +392,9 @@ struct mlx5_ib_dev {
struct mlx5_mr_cache cache;
struct timer_list delay_timer;
int fill_delay;
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ struct ib_odp_caps odp_caps;
+#endif
};
static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
@@ -569,6 +572,15 @@ void mlx5_umr_cq_handler(struct ib_cq *cq, void *cq_context);
int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
struct ib_mr_status *mr_status);
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev);
+#else
+static inline int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev)
+{
+ return 0;
+}
+#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
+
static inline void init_query_mad(struct ib_smp *mad)
{
mad->base_version = 1;
new file mode 100644
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2014 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "mlx5_ib.h"
+
+#define COPY_ODP_BIT_MLX_TO_IB(reg, ib_caps, field_name, bit_name) do { \
+ if (be32_to_cpu(reg.field_name) & MLX5_ODP_SUPPORT_##bit_name) \
+ ib_caps->field_name |= IB_ODP_SUPPORT_##bit_name; \
+} while (0)
+
+int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev)
+{
+ int err;
+ struct mlx5_odp_caps hw_caps;
+ struct ib_odp_caps *caps = &dev->odp_caps;
+
+ memset(caps, 0, sizeof(*caps));
+
+ if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG))
+ return 0;
+
+ err = mlx5_query_odp_caps(&dev->mdev, &hw_caps);
+ if (err)
+ goto out;
+
+ /* At this point we would copy the capability bits that the driver
+ * supports from the hw_caps struct to the caps struct. However, no
+ * such capabilities are supported so far. */
+out:
+ return err;
+}