| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20210318111548.674749-5-leon@kernel.org>
Date: Thu, 18 Mar 2021 13:15:45 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...dia.com>
Cc: Maor Gottlieb <maorg@...dia.com>, linux-rdma@...r.kernel.org,
netdev@...r.kernel.org, Saeed Mahameed <saeedm@...dia.com>,
Yishai Hadas <yishaih@...lanox.com>
Subject: [PATCH rdma-next 4/7] RDMA/mlx5: Move all DM logic to separate file
From: Maor Gottlieb <maorg@...dia.com>
Move all device memory related code to a separate file.
Signed-off-by: Maor Gottlieb <maorg@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
drivers/infiniband/hw/mlx5/Makefile | 1 +
drivers/infiniband/hw/mlx5/cmd.c | 101 --------
drivers/infiniband/hw/mlx5/cmd.h | 3 -
drivers/infiniband/hw/mlx5/dm.c | 342 +++++++++++++++++++++++++++
drivers/infiniband/hw/mlx5/dm.h | 14 ++
drivers/infiniband/hw/mlx5/main.c | 239 +------------------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 3 +
7 files changed, 362 insertions(+), 341 deletions(-)
create mode 100644 drivers/infiniband/hw/mlx5/dm.c
create mode 100644 drivers/infiniband/hw/mlx5/dm.h
diff --git a/drivers/infiniband/hw/mlx5/Makefile b/drivers/infiniband/hw/mlx5/Makefile
index b4c009bb0db6..f43380106bd0 100644
--- a/drivers/infiniband/hw/mlx5/Makefile
+++ b/drivers/infiniband/hw/mlx5/Makefile
@@ -6,6 +6,7 @@ mlx5_ib-y := ah.o \
cong.o \
counters.o \
cq.o \
+ dm.o \
doorbell.o \
gsi.o \
ib_virt.o \
diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c
index 234f29912ba9..a8db8a051170 100644
--- a/drivers/infiniband/hw/mlx5/cmd.c
+++ b/drivers/infiniband/hw/mlx5/cmd.c
@@ -47,107 +47,6 @@ int mlx5_cmd_query_cong_params(struct mlx5_core_dev *dev, int cong_point,
return mlx5_cmd_exec_inout(dev, query_cong_params, in, out);
}
-int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr,
- u64 length, u32 alignment)
-{
- struct mlx5_core_dev *dev = dm->dev;
- u64 num_memic_hw_pages = MLX5_CAP_DEV_MEM(dev, memic_bar_size)
- >> PAGE_SHIFT;
- u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
- u32 max_alignment = MLX5_CAP_DEV_MEM(dev, log_max_memic_addr_alignment);
- u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
- u32 out[MLX5_ST_SZ_DW(alloc_memic_out)] = {};
- u32 in[MLX5_ST_SZ_DW(alloc_memic_in)] = {};
- u32 mlx5_alignment;
- u64 page_idx = 0;
- int ret = 0;
-
- if (!length || (length & MLX5_MEMIC_ALLOC_SIZE_MASK))
- return -EINVAL;
-
- /* mlx5 device sets alignment as 64*2^driver_value
- * so normalizing is needed.
- */
- mlx5_alignment = (alignment < MLX5_MEMIC_BASE_ALIGN) ? 0 :
- alignment - MLX5_MEMIC_BASE_ALIGN;
- if (mlx5_alignment > max_alignment)
- return -EINVAL;
-
- MLX5_SET(alloc_memic_in, in, opcode, MLX5_CMD_OP_ALLOC_MEMIC);
- MLX5_SET(alloc_memic_in, in, range_size, num_pages * PAGE_SIZE);
- MLX5_SET(alloc_memic_in, in, memic_size, length);
- MLX5_SET(alloc_memic_in, in, log_memic_addr_alignment,
- mlx5_alignment);
-
- while (page_idx < num_memic_hw_pages) {
- spin_lock(&dm->lock);
- page_idx = bitmap_find_next_zero_area(dm->memic_alloc_pages,
- num_memic_hw_pages,
- page_idx,
- num_pages, 0);
-
- if (page_idx < num_memic_hw_pages)
- bitmap_set(dm->memic_alloc_pages,
- page_idx, num_pages);
-
- spin_unlock(&dm->lock);
-
- if (page_idx >= num_memic_hw_pages)
- break;
-
- MLX5_SET64(alloc_memic_in, in, range_start_addr,
- hw_start_addr + (page_idx * PAGE_SIZE));
-
- ret = mlx5_cmd_exec_inout(dev, alloc_memic, in, out);
- if (ret) {
- spin_lock(&dm->lock);
- bitmap_clear(dm->memic_alloc_pages,
- page_idx, num_pages);
- spin_unlock(&dm->lock);
-
- if (ret == -EAGAIN) {
- page_idx++;
- continue;
- }
-
- return ret;
- }
-
- *addr = dev->bar_addr +
- MLX5_GET64(alloc_memic_out, out, memic_start_addr);
-
- return 0;
- }
-
- return -ENOMEM;
-}
-
-void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length)
-{
- struct mlx5_core_dev *dev = dm->dev;
- u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
- u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
- u32 in[MLX5_ST_SZ_DW(dealloc_memic_in)] = {};
- u64 start_page_idx;
- int err;
-
- addr -= dev->bar_addr;
- start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT;
-
- MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC);
- MLX5_SET64(dealloc_memic_in, in, memic_start_addr, addr);
- MLX5_SET(dealloc_memic_in, in, memic_size, length);
-
- err = mlx5_cmd_exec_in(dev, dealloc_memic, in);
- if (err)
- return;
-
- spin_lock(&dm->lock);
- bitmap_clear(dm->memic_alloc_pages,
- start_page_idx, num_pages);
- spin_unlock(&dm->lock);
-}
-
void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid)
{
u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {};
diff --git a/drivers/infiniband/hw/mlx5/cmd.h b/drivers/infiniband/hw/mlx5/cmd.h
index 88ea6ef8f2cb..66c96292ed43 100644
--- a/drivers/infiniband/hw/mlx5/cmd.h
+++ b/drivers/infiniband/hw/mlx5/cmd.h
@@ -41,9 +41,6 @@ int mlx5_cmd_dump_fill_mkey(struct mlx5_core_dev *dev, u32 *mkey);
int mlx5_cmd_null_mkey(struct mlx5_core_dev *dev, u32 *null_mkey);
int mlx5_cmd_query_cong_params(struct mlx5_core_dev *dev, int cong_point,
void *out);
-int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr,
- u64 length, u32 alignment);
-void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length);
int mlx5_cmd_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn, u16 uid);
void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid);
void mlx5_cmd_destroy_tis(struct mlx5_core_dev *dev, u32 tisn, u16 uid);
diff --git a/drivers/infiniband/hw/mlx5/dm.c b/drivers/infiniband/hw/mlx5/dm.c
new file mode 100644
index 000000000000..3d39d93625ad
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/dm.c
@@ -0,0 +1,342 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2021, Mellanox Technologies inc. All rights reserved.
+ */
+
+#include <rdma/uverbs_std_types.h>
+#include "dm.h"
+
+#define UVERBS_MODULE_NAME mlx5_ib
+#include <rdma/uverbs_named_ioctl.h>
+
+static int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr,
+ u64 length, u32 alignment)
+{
+ struct mlx5_core_dev *dev = dm->dev;
+ u64 num_memic_hw_pages = MLX5_CAP_DEV_MEM(dev, memic_bar_size)
+ >> PAGE_SHIFT;
+ u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
+ u32 max_alignment = MLX5_CAP_DEV_MEM(dev, log_max_memic_addr_alignment);
+ u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
+ u32 out[MLX5_ST_SZ_DW(alloc_memic_out)] = {};
+ u32 in[MLX5_ST_SZ_DW(alloc_memic_in)] = {};
+ u32 mlx5_alignment;
+ u64 page_idx = 0;
+ int ret = 0;
+
+ if (!length || (length & MLX5_MEMIC_ALLOC_SIZE_MASK))
+ return -EINVAL;
+
+ /* mlx5 device sets alignment as 64*2^driver_value
+ * so normalizing is needed.
+ */
+ mlx5_alignment = (alignment < MLX5_MEMIC_BASE_ALIGN) ? 0 :
+ alignment - MLX5_MEMIC_BASE_ALIGN;
+ if (mlx5_alignment > max_alignment)
+ return -EINVAL;
+
+ MLX5_SET(alloc_memic_in, in, opcode, MLX5_CMD_OP_ALLOC_MEMIC);
+ MLX5_SET(alloc_memic_in, in, range_size, num_pages * PAGE_SIZE);
+ MLX5_SET(alloc_memic_in, in, memic_size, length);
+ MLX5_SET(alloc_memic_in, in, log_memic_addr_alignment,
+ mlx5_alignment);
+
+ while (page_idx < num_memic_hw_pages) {
+ spin_lock(&dm->lock);
+ page_idx = bitmap_find_next_zero_area(dm->memic_alloc_pages,
+ num_memic_hw_pages,
+ page_idx,
+ num_pages, 0);
+
+ if (page_idx < num_memic_hw_pages)
+ bitmap_set(dm->memic_alloc_pages,
+ page_idx, num_pages);
+
+ spin_unlock(&dm->lock);
+
+ if (page_idx >= num_memic_hw_pages)
+ break;
+
+ MLX5_SET64(alloc_memic_in, in, range_start_addr,
+ hw_start_addr + (page_idx * PAGE_SIZE));
+
+ ret = mlx5_cmd_exec_inout(dev, alloc_memic, in, out);
+ if (ret) {
+ spin_lock(&dm->lock);
+ bitmap_clear(dm->memic_alloc_pages,
+ page_idx, num_pages);
+ spin_unlock(&dm->lock);
+
+ if (ret == -EAGAIN) {
+ page_idx++;
+ continue;
+ }
+
+ return ret;
+ }
+
+ *addr = dev->bar_addr +
+ MLX5_GET64(alloc_memic_out, out, memic_start_addr);
+
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr,
+ u64 length)
+{
+ struct mlx5_core_dev *dev = dm->dev;
+ u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
+ u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
+ u32 in[MLX5_ST_SZ_DW(dealloc_memic_in)] = {};
+ u64 start_page_idx;
+ int err;
+
+ addr -= dev->bar_addr;
+ start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT;
+
+ MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC);
+ MLX5_SET64(dealloc_memic_in, in, memic_start_addr, addr);
+ MLX5_SET(dealloc_memic_in, in, memic_size, length);
+
+ err = mlx5_cmd_exec_in(dev, dealloc_memic, in);
+ if (err)
+ return;
+
+ spin_lock(&dm->lock);
+ bitmap_clear(dm->memic_alloc_pages,
+ start_page_idx, num_pages);
+ spin_unlock(&dm->lock);
+}
+
+static int add_dm_mmap_entry(struct ib_ucontext *context,
+ struct mlx5_ib_dm *mdm, u64 address)
+{
+ mdm->mentry.mmap_flag = MLX5_IB_MMAP_TYPE_MEMIC;
+ mdm->mentry.address = address;
+ return rdma_user_mmap_entry_insert_range(
+ context, &mdm->mentry.rdma_entry, mdm->size,
+ MLX5_IB_MMAP_DEVICE_MEM << 16,
+ (MLX5_IB_MMAP_DEVICE_MEM << 16) + (1UL << 16) - 1);
+}
+
+static inline int check_dm_type_support(struct mlx5_ib_dev *dev, u32 type)
+{
+ switch (type) {
+ case MLX5_IB_UAPI_DM_TYPE_MEMIC:
+ if (!MLX5_CAP_DEV_MEM(dev->mdev, memic))
+ return -EOPNOTSUPP;
+ break;
+ case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+ case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
+ if (!capable(CAP_SYS_RAWIO) || !capable(CAP_NET_RAW))
+ return -EPERM;
+
+ if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, sw_owner) ||
+ MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, sw_owner) ||
+ MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, sw_owner_v2) ||
+ MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, sw_owner_v2)))
+ return -EOPNOTSUPP;
+ break;
+ }
+
+ return 0;
+}
+
+static int handle_alloc_dm_memic(struct ib_ucontext *ctx, struct mlx5_ib_dm *dm,
+ struct ib_dm_alloc_attr *attr,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct mlx5_dm *dm_db = &to_mdev(ctx->device)->dm;
+ u64 start_offset;
+ u16 page_idx;
+ int err;
+ u64 address;
+
+ dm->size = roundup(attr->length, MLX5_MEMIC_BASE_SIZE);
+
+ err = mlx5_cmd_alloc_memic(dm_db, &dm->dev_addr,
+ dm->size, attr->alignment);
+ if (err) {
+ kfree(dm);
+ return err;
+ }
+
+ address = dm->dev_addr & PAGE_MASK;
+ err = add_dm_mmap_entry(ctx, dm, address);
+ if (err) {
+ mlx5_cmd_dealloc_memic(dm_db, dm->dev_addr, dm->size);
+ kfree(dm);
+ return err;
+ }
+
+ page_idx = dm->mentry.rdma_entry.start_pgoff & 0xFFFF;
+ err = uverbs_copy_to(attrs,
+ MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
+ &page_idx,
+ sizeof(page_idx));
+ if (err)
+ goto err_copy;
+
+ start_offset = dm->dev_addr & ~PAGE_MASK;
+ err = uverbs_copy_to(attrs,
+ MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
+ &start_offset, sizeof(start_offset));
+ if (err)
+ goto err_copy;
+
+ return 0;
+
+err_copy:
+ rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
+
+ return err;
+}
+
+static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
+ struct mlx5_ib_dm *dm,
+ struct ib_dm_alloc_attr *attr,
+ struct uverbs_attr_bundle *attrs, int type)
+{
+ struct mlx5_core_dev *dev = to_mdev(ctx->device)->mdev;
+ u64 act_size;
+ int err;
+
+ /* Allocation size must a multiple of the basic block size
+ * and a power of 2.
+ */
+ act_size = round_up(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dev));
+ act_size = roundup_pow_of_two(act_size);
+
+ dm->size = act_size;
+ err = mlx5_dm_sw_icm_alloc(dev, type, act_size, attr->alignment,
+ to_mucontext(ctx)->devx_uid, &dm->dev_addr,
+ &dm->icm_dm.obj_id);
+ if (err)
+ return err;
+
+ err = uverbs_copy_to(attrs, MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
+ &dm->dev_addr, sizeof(dm->dev_addr));
+ if (err)
+ mlx5_dm_sw_icm_dealloc(dev, type, dm->size,
+ to_mucontext(ctx)->devx_uid,
+ dm->dev_addr, dm->icm_dm.obj_id);
+
+ return err;
+}
+
+struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
+ struct ib_ucontext *context,
+ struct ib_dm_alloc_attr *attr,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct mlx5_ib_dm *dm;
+ enum mlx5_ib_uapi_dm_type type;
+ int err;
+
+ err = uverbs_get_const_default(&type, attrs,
+ MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
+ MLX5_IB_UAPI_DM_TYPE_MEMIC);
+ if (err)
+ return ERR_PTR(err);
+
+ mlx5_ib_dbg(to_mdev(ibdev), "alloc_dm req: dm_type=%d user_length=0x%llx log_alignment=%d\n",
+ type, attr->length, attr->alignment);
+
+ err = check_dm_type_support(to_mdev(ibdev), type);
+ if (err)
+ return ERR_PTR(err);
+
+ dm = kzalloc(sizeof(*dm), GFP_KERNEL);
+ if (!dm)
+ return ERR_PTR(-ENOMEM);
+
+ dm->type = type;
+
+ switch (type) {
+ case MLX5_IB_UAPI_DM_TYPE_MEMIC:
+ err = handle_alloc_dm_memic(context, dm, attr, attrs);
+ break;
+ case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+ err = handle_alloc_dm_sw_icm(context, dm,
+ attr, attrs,
+ MLX5_SW_ICM_TYPE_STEERING);
+ break;
+ case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
+ err = handle_alloc_dm_sw_icm(context, dm,
+ attr, attrs,
+ MLX5_SW_ICM_TYPE_HEADER_MODIFY);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ }
+
+ if (err)
+ goto err_free;
+
+ return &dm->ibdm;
+
+err_free:
+ /* In MEMIC error flow, dm will be freed internally */
+ if (type != MLX5_IB_UAPI_DM_TYPE_MEMIC)
+ kfree(dm);
+ return ERR_PTR(err);
+}
+
+int mlx5_ib_dealloc_dm(struct ib_dm *ibdm, struct uverbs_attr_bundle *attrs)
+{
+ struct mlx5_ib_ucontext *ctx = rdma_udata_to_drv_context(
+ &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
+ struct mlx5_core_dev *dev = to_mdev(ibdm->device)->mdev;
+ struct mlx5_ib_dm *dm = to_mdm(ibdm);
+ int ret;
+
+ switch (dm->type) {
+ case MLX5_IB_UAPI_DM_TYPE_MEMIC:
+ rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
+ return 0;
+ case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+ ret = mlx5_dm_sw_icm_dealloc(dev, MLX5_SW_ICM_TYPE_STEERING,
+ dm->size, ctx->devx_uid,
+ dm->dev_addr, dm->icm_dm.obj_id);
+ if (ret)
+ return ret;
+ break;
+ case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
+ ret = mlx5_dm_sw_icm_dealloc(dev,
+ MLX5_SW_ICM_TYPE_HEADER_MODIFY,
+ dm->size, ctx->devx_uid,
+ dm->dev_addr, dm->icm_dm.obj_id);
+ if (ret)
+ return ret;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ kfree(dm);
+
+ return 0;
+}
+
+ADD_UVERBS_ATTRIBUTES_SIMPLE(
+ mlx5_ib_dm, UVERBS_OBJECT_DM, UVERBS_METHOD_DM_ALLOC,
+ UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
+ UVERBS_ATTR_TYPE(u64), UA_MANDATORY),
+ UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
+ UVERBS_ATTR_TYPE(u16), UA_OPTIONAL),
+ UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
+ enum mlx5_ib_uapi_dm_type, UA_OPTIONAL));
+
+const struct uapi_definition mlx5_ib_dm_defs[] = {
+ UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_DM, &mlx5_ib_dm),
+ {},
+};
+
+const struct ib_device_ops mlx5_ib_dev_dm_ops = {
+ .alloc_dm = mlx5_ib_alloc_dm,
+ .dealloc_dm = mlx5_ib_dealloc_dm,
+ .reg_dm_mr = mlx5_ib_reg_dm_mr,
+};
diff --git a/drivers/infiniband/hw/mlx5/dm.h b/drivers/infiniband/hw/mlx5/dm.h
new file mode 100644
index 000000000000..dbef67e38731
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/dm.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2021, Mellanox Technologies inc. All rights reserved.
+ */
+
+#ifndef _MLX5_IB_DM_H
+#define _MLX5_IB_DM_H
+
+#include "mlx5_ib.h"
+
+void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr,
+ u64 length);
+
+#endif /* _MLX5_IB_DM_H */
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index d652af720036..49c8c60d9520 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -34,6 +34,7 @@
#include "ib_rep.h"
#include "cmd.h"
#include "devx.h"
+#include "dm.h"
#include "fs.h"
#include "srq.h"
#include "qp.h"
@@ -2221,19 +2222,6 @@ static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd,
return err;
}
-static int add_dm_mmap_entry(struct ib_ucontext *context,
- struct mlx5_ib_dm *mdm,
- u64 address)
-{
- mdm->mentry.mmap_flag = MLX5_IB_MMAP_TYPE_MEMIC;
- mdm->mentry.address = address;
- return rdma_user_mmap_entry_insert_range(
- context, &mdm->mentry.rdma_entry,
- mdm->size,
- MLX5_IB_MMAP_DEVICE_MEM << 16,
- (MLX5_IB_MMAP_DEVICE_MEM << 16) + (1UL << 16) - 1);
-}
-
static unsigned long mlx5_vma_to_pgoff(struct vm_area_struct *vma)
{
unsigned long idx;
@@ -2335,209 +2323,6 @@ static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vm
return 0;
}
-static inline int check_dm_type_support(struct mlx5_ib_dev *dev,
- u32 type)
-{
- switch (type) {
- case MLX5_IB_UAPI_DM_TYPE_MEMIC:
- if (!MLX5_CAP_DEV_MEM(dev->mdev, memic))
- return -EOPNOTSUPP;
- break;
- case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
- case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
- if (!capable(CAP_SYS_RAWIO) ||
- !capable(CAP_NET_RAW))
- return -EPERM;
-
- if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, sw_owner) ||
- MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, sw_owner) ||
- MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, sw_owner_v2) ||
- MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev, sw_owner_v2)))
- return -EOPNOTSUPP;
- break;
- }
-
- return 0;
-}
-
-static int handle_alloc_dm_memic(struct ib_ucontext *ctx,
- struct mlx5_ib_dm *dm,
- struct ib_dm_alloc_attr *attr,
- struct uverbs_attr_bundle *attrs)
-{
- struct mlx5_dm *dm_db = &to_mdev(ctx->device)->dm;
- u64 start_offset;
- u16 page_idx;
- int err;
- u64 address;
-
- dm->size = roundup(attr->length, MLX5_MEMIC_BASE_SIZE);
-
- err = mlx5_cmd_alloc_memic(dm_db, &dm->dev_addr,
- dm->size, attr->alignment);
- if (err) {
- kfree(dm);
- return err;
- }
-
- address = dm->dev_addr & PAGE_MASK;
- err = add_dm_mmap_entry(ctx, dm, address);
- if (err) {
- mlx5_cmd_dealloc_memic(dm_db, dm->dev_addr, dm->size);
- kfree(dm);
- return err;
- }
-
- page_idx = dm->mentry.rdma_entry.start_pgoff & 0xFFFF;
- err = uverbs_copy_to(attrs,
- MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
- &page_idx,
- sizeof(page_idx));
- if (err)
- goto err_copy;
-
- start_offset = dm->dev_addr & ~PAGE_MASK;
- err = uverbs_copy_to(attrs,
- MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
- &start_offset, sizeof(start_offset));
- if (err)
- goto err_copy;
-
- return 0;
-
-err_copy:
- rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
-
- return err;
-}
-
-static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
- struct mlx5_ib_dm *dm,
- struct ib_dm_alloc_attr *attr,
- struct uverbs_attr_bundle *attrs,
- int type)
-{
- struct mlx5_core_dev *dev = to_mdev(ctx->device)->mdev;
- u64 act_size;
- int err;
-
- /* Allocation size must a multiple of the basic block size
- * and a power of 2.
- */
- act_size = round_up(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dev));
- act_size = roundup_pow_of_two(act_size);
-
- dm->size = act_size;
- err = mlx5_dm_sw_icm_alloc(dev, type, act_size, attr->alignment,
- to_mucontext(ctx)->devx_uid, &dm->dev_addr,
- &dm->icm_dm.obj_id);
- if (err)
- return err;
-
- err = uverbs_copy_to(attrs,
- MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
- &dm->dev_addr, sizeof(dm->dev_addr));
- if (err)
- mlx5_dm_sw_icm_dealloc(dev, type, dm->size,
- to_mucontext(ctx)->devx_uid, dm->dev_addr,
- dm->icm_dm.obj_id);
-
- return err;
-}
-
-struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
- struct ib_ucontext *context,
- struct ib_dm_alloc_attr *attr,
- struct uverbs_attr_bundle *attrs)
-{
- struct mlx5_ib_dm *dm;
- enum mlx5_ib_uapi_dm_type type;
- int err;
-
- err = uverbs_get_const_default(&type, attrs,
- MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
- MLX5_IB_UAPI_DM_TYPE_MEMIC);
- if (err)
- return ERR_PTR(err);
-
- mlx5_ib_dbg(to_mdev(ibdev), "alloc_dm req: dm_type=%d user_length=0x%llx log_alignment=%d\n",
- type, attr->length, attr->alignment);
-
- err = check_dm_type_support(to_mdev(ibdev), type);
- if (err)
- return ERR_PTR(err);
-
- dm = kzalloc(sizeof(*dm), GFP_KERNEL);
- if (!dm)
- return ERR_PTR(-ENOMEM);
-
- dm->type = type;
-
- switch (type) {
- case MLX5_IB_UAPI_DM_TYPE_MEMIC:
- err = handle_alloc_dm_memic(context, dm, attr, attrs);
- break;
- case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
- err = handle_alloc_dm_sw_icm(context, dm,
- attr, attrs,
- MLX5_SW_ICM_TYPE_STEERING);
- break;
- case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
- err = handle_alloc_dm_sw_icm(context, dm,
- attr, attrs,
- MLX5_SW_ICM_TYPE_HEADER_MODIFY);
- break;
- default:
- err = -EOPNOTSUPP;
- }
-
- if (err)
- goto err_free;
-
- return &dm->ibdm;
-
-err_free:
- /* In MEMIC error flow, dm will be freed internally */
- if (type != MLX5_IB_UAPI_DM_TYPE_MEMIC)
- kfree(dm);
- return ERR_PTR(err);
-}
-
-int mlx5_ib_dealloc_dm(struct ib_dm *ibdm, struct uverbs_attr_bundle *attrs)
-{
- struct mlx5_ib_ucontext *ctx = rdma_udata_to_drv_context(
- &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
- struct mlx5_core_dev *dev = to_mdev(ibdm->device)->mdev;
- struct mlx5_ib_dm *dm = to_mdm(ibdm);
- int ret;
-
- switch (dm->type) {
- case MLX5_IB_UAPI_DM_TYPE_MEMIC:
- rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
- return 0;
- case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
- ret = mlx5_dm_sw_icm_dealloc(dev, MLX5_SW_ICM_TYPE_STEERING,
- dm->size, ctx->devx_uid, dm->dev_addr,
- dm->icm_dm.obj_id);
- if (ret)
- return ret;
- break;
- case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
- ret = mlx5_dm_sw_icm_dealloc(dev, MLX5_SW_ICM_TYPE_HEADER_MODIFY,
- dm->size, ctx->devx_uid, dm->dev_addr,
- dm->icm_dm.obj_id);
- if (ret)
- return ret;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- kfree(dm);
-
- return 0;
-}
-
static int mlx5_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct mlx5_ib_pd *pd = to_mpd(ibpd);
@@ -3821,20 +3606,6 @@ DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_UAR,
&UVERBS_METHOD(MLX5_IB_METHOD_UAR_OBJ_ALLOC),
&UVERBS_METHOD(MLX5_IB_METHOD_UAR_OBJ_DESTROY));
-ADD_UVERBS_ATTRIBUTES_SIMPLE(
- mlx5_ib_dm,
- UVERBS_OBJECT_DM,
- UVERBS_METHOD_DM_ALLOC,
- UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
- UVERBS_ATTR_TYPE(u64),
- UA_MANDATORY),
- UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
- UVERBS_ATTR_TYPE(u16),
- UA_OPTIONAL),
- UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
- enum mlx5_ib_uapi_dm_type,
- UA_OPTIONAL));
-
ADD_UVERBS_ATTRIBUTES_SIMPLE(
mlx5_ib_flow_action,
UVERBS_OBJECT_FLOW_ACTION,
@@ -3857,10 +3628,10 @@ static const struct uapi_definition mlx5_ib_defs[] = {
UAPI_DEF_CHAIN(mlx5_ib_flow_defs),
UAPI_DEF_CHAIN(mlx5_ib_qos_defs),
UAPI_DEF_CHAIN(mlx5_ib_std_types_defs),
+ UAPI_DEF_CHAIN(mlx5_ib_dm_defs),
UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_FLOW_ACTION,
&mlx5_ib_flow_action),
- UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_DM, &mlx5_ib_dm),
UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_DEVICE, &mlx5_ib_query_context),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(MLX5_IB_OBJECT_VAR,
UAPI_DEF_IS_OBJ_SUPPORTED(var_is_supported)),
@@ -4038,12 +3809,6 @@ static const struct ib_device_ops mlx5_ib_dev_xrc_ops = {
INIT_RDMA_OBJ_SIZE(ib_xrcd, mlx5_ib_xrcd, ibxrcd),
};
-static const struct ib_device_ops mlx5_ib_dev_dm_ops = {
- .alloc_dm = mlx5_ib_alloc_dm,
- .dealloc_dm = mlx5_ib_dealloc_dm,
- .reg_dm_mr = mlx5_ib_reg_dm_mr,
-};
-
static int mlx5_ib_init_var_table(struct mlx5_ib_dev *dev)
{
struct mlx5_core_dev *mdev = dev->mdev;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index a31097538dc7..ae971de6e934 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1410,6 +1410,8 @@ static inline int mlx5_ib_init_dmabuf_mr(struct mlx5_ib_mr *mr)
extern const struct mmu_interval_notifier_ops mlx5_mn_ops;
+extern const struct ib_device_ops mlx5_ib_dev_dm_ops;
+
/* Needed for rep profile */
void __mlx5_ib_remove(struct mlx5_ib_dev *dev,
const struct mlx5_ib_profile *profile,
@@ -1462,6 +1464,7 @@ void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev,
u32 port_num);
extern const struct uapi_definition mlx5_ib_devx_defs[];
+extern const struct uapi_definition mlx5_ib_dm_defs[];
extern const struct uapi_definition mlx5_ib_flow_defs[];
extern const struct uapi_definition mlx5_ib_qos_defs[];
extern const struct uapi_definition mlx5_ib_std_types_defs[];
--
2.30.2
Powered by blists - more mailing lists