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-rw-r--r--drivers/infiniband/hw/mlx5/cmd.c130
-rw-r--r--drivers/infiniband/hw/mlx5/cmd.h4
-rw-r--r--drivers/infiniband/hw/mlx5/main.c102
-rw-r--r--drivers/infiniband/hw/mlx5/mlx5_ib.h2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/Makefile2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/lib/dm.c223
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/main.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h3
-rw-r--r--include/linux/mlx5/driver.h14
9 files changed, 276 insertions, 209 deletions
diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c
index 6c8645033102..4937947400cd 100644
--- a/drivers/infiniband/hw/mlx5/cmd.c
+++ b/drivers/infiniband/hw/mlx5/cmd.c
@@ -186,136 +186,6 @@ int mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length)
return err;
}
-int mlx5_cmd_alloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
- u16 uid, phys_addr_t *addr, u32 *obj_id)
-{
- struct mlx5_core_dev *dev = dm->dev;
- u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
- u32 in[MLX5_ST_SZ_DW(create_sw_icm_in)] = {};
- unsigned long *block_map;
- u64 icm_start_addr;
- u32 log_icm_size;
- u32 num_blocks;
- u32 max_blocks;
- u64 block_idx;
- void *sw_icm;
- int ret;
-
- MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
- MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
- MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
- MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
-
- switch (type) {
- case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
- icm_start_addr = MLX5_CAP64_DEV_MEM(dev,
- steering_sw_icm_start_address);
- log_icm_size = MLX5_CAP_DEV_MEM(dev, log_steering_sw_icm_size);
- block_map = dm->steering_sw_icm_alloc_blocks;
- break;
- case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
- icm_start_addr = MLX5_CAP64_DEV_MEM(dev,
- header_modify_sw_icm_start_address);
- log_icm_size = MLX5_CAP_DEV_MEM(dev,
- log_header_modify_sw_icm_size);
- block_map = dm->header_modify_sw_icm_alloc_blocks;
- break;
- default:
- return -EINVAL;
- }
-
- num_blocks = (length + MLX5_SW_ICM_BLOCK_SIZE(dev) - 1) >>
- MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
- max_blocks = BIT(log_icm_size - MLX5_LOG_SW_ICM_BLOCK_SIZE(dev));
- spin_lock(&dm->lock);
- block_idx = bitmap_find_next_zero_area(block_map,
- max_blocks,
- 0,
- num_blocks, 0);
-
- if (block_idx < max_blocks)
- bitmap_set(block_map,
- block_idx, num_blocks);
-
- spin_unlock(&dm->lock);
-
- if (block_idx >= max_blocks)
- return -ENOMEM;
-
- sw_icm = MLX5_ADDR_OF(create_sw_icm_in, in, sw_icm);
- icm_start_addr += block_idx << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
- MLX5_SET64(sw_icm, sw_icm, sw_icm_start_addr,
- icm_start_addr);
- MLX5_SET(sw_icm, sw_icm, log_sw_icm_size, ilog2(length));
-
- ret = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
- if (ret) {
- spin_lock(&dm->lock);
- bitmap_clear(block_map,
- block_idx, num_blocks);
- spin_unlock(&dm->lock);
-
- return ret;
- }
-
- *addr = icm_start_addr;
- *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
-
- return 0;
-}
-
-int mlx5_cmd_dealloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
- u16 uid, phys_addr_t addr, u32 obj_id)
-{
- struct mlx5_core_dev *dev = dm->dev;
- u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
- u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {};
- unsigned long *block_map;
- u32 num_blocks;
- u64 start_idx;
- int err;
-
- num_blocks = (length + MLX5_SW_ICM_BLOCK_SIZE(dev) - 1) >>
- MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-
- switch (type) {
- case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
- start_idx =
- (addr - MLX5_CAP64_DEV_MEM(
- dev, steering_sw_icm_start_address)) >>
- MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
- block_map = dm->steering_sw_icm_alloc_blocks;
- break;
- case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
- start_idx =
- (addr -
- MLX5_CAP64_DEV_MEM(
- dev, header_modify_sw_icm_start_address)) >>
- MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
- block_map = dm->header_modify_sw_icm_alloc_blocks;
- break;
- default:
- return -EINVAL;
- }
-
- MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
- MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
- MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
- MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, obj_id);
- MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
-
- err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
- if (err)
- return err;
-
- spin_lock(&dm->lock);
- bitmap_clear(block_map,
- start_idx, num_blocks);
- spin_unlock(&dm->lock);
-
- return 0;
-}
-
int mlx5_cmd_query_ext_ppcnt_counters(struct mlx5_core_dev *dev, void *out)
{
u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {};
diff --git a/drivers/infiniband/hw/mlx5/cmd.h b/drivers/infiniband/hw/mlx5/cmd.h
index 0572dcba6eae..169cab4915e3 100644
--- a/drivers/infiniband/hw/mlx5/cmd.h
+++ b/drivers/infiniband/hw/mlx5/cmd.h
@@ -65,8 +65,4 @@ int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id,
u16 uid);
int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port);
-int mlx5_cmd_alloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
- u16 uid, phys_addr_t *addr, u32 *obj_id);
-int mlx5_cmd_dealloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
- u16 uid, phys_addr_t addr, u32 obj_id);
#endif /* MLX5_IB_CMD_H */
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index c2a5780cb394..42fdbbea06f0 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2280,6 +2280,7 @@ static inline int check_dm_type_support(struct mlx5_ib_dev *dev,
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;
@@ -2344,20 +2345,20 @@ static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
struct uverbs_attr_bundle *attrs,
int type)
{
- struct mlx5_dm *dm_db = &to_mdev(ctx->device)->dm;
+ 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(dm_db->dev));
+ 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_cmd_alloc_sw_icm(dm_db, type, act_size,
- to_mucontext(ctx)->devx_uid, &dm->dev_addr,
- &dm->icm_dm.obj_id);
+ err = mlx5_dm_sw_icm_alloc(dev, type, act_size,
+ to_mucontext(ctx)->devx_uid, &dm->dev_addr,
+ &dm->icm_dm.obj_id);
if (err)
return err;
@@ -2365,9 +2366,9 @@ static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
&dm->dev_addr, sizeof(dm->dev_addr));
if (err)
- mlx5_cmd_dealloc_sw_icm(dm_db, type, dm->size,
- to_mucontext(ctx)->devx_uid,
- dm->dev_addr, dm->icm_dm.obj_id);
+ mlx5_dm_sw_icm_dealloc(dev, type, dm->size,
+ to_mucontext(ctx)->devx_uid, dm->dev_addr,
+ dm->icm_dm.obj_id);
return err;
}
@@ -2407,8 +2408,14 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
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, type);
+ err = handle_alloc_dm_sw_icm(context, dm,
+ attr, attrs,
+ MLX5_SW_ICM_TYPE_HEADER_MODIFY);
break;
default:
err = -EOPNOTSUPP;
@@ -2428,6 +2435,7 @@ 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_dm *dm_db = &to_mdev(ibdm->device)->dm;
struct mlx5_ib_dm *dm = to_mdm(ibdm);
u32 page_idx;
@@ -2439,19 +2447,23 @@ int mlx5_ib_dealloc_dm(struct ib_dm *ibdm, struct uverbs_attr_bundle *attrs)
if (ret)
return ret;
- page_idx = (dm->dev_addr -
- pci_resource_start(dm_db->dev->pdev, 0) -
- MLX5_CAP64_DEV_MEM(dm_db->dev,
- memic_bar_start_addr)) >>
- PAGE_SHIFT;
+ page_idx = (dm->dev_addr - pci_resource_start(dev->pdev, 0) -
+ MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr)) >>
+ PAGE_SHIFT;
bitmap_clear(ctx->dm_pages, page_idx,
DIV_ROUND_UP(dm->size, PAGE_SIZE));
break;
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_cmd_dealloc_sw_icm(dm_db, dm->type, dm->size,
- ctx->devx_uid, dm->dev_addr,
- dm->icm_dm.obj_id);
+ 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;
@@ -6097,8 +6109,6 @@ static struct ib_counters *mlx5_ib_create_counters(struct ib_device *device,
static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
{
- struct mlx5_core_dev *mdev = dev->mdev;
-
mlx5_ib_cleanup_multiport_master(dev);
if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
srcu_barrier(&dev->mr_srcu);
@@ -6106,29 +6116,11 @@ static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
}
WARN_ON(!bitmap_empty(dev->dm.memic_alloc_pages, MLX5_MAX_MEMIC_PAGES));
-
- WARN_ON(dev->dm.steering_sw_icm_alloc_blocks &&
- !bitmap_empty(
- dev->dm.steering_sw_icm_alloc_blocks,
- BIT(MLX5_CAP_DEV_MEM(mdev, log_steering_sw_icm_size) -
- MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev))));
-
- kfree(dev->dm.steering_sw_icm_alloc_blocks);
-
- WARN_ON(dev->dm.header_modify_sw_icm_alloc_blocks &&
- !bitmap_empty(dev->dm.header_modify_sw_icm_alloc_blocks,
- BIT(MLX5_CAP_DEV_MEM(
- mdev, log_header_modify_sw_icm_size) -
- MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev))));
-
- kfree(dev->dm.header_modify_sw_icm_alloc_blocks);
}
static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
{
struct mlx5_core_dev *mdev = dev->mdev;
- u64 header_modify_icm_blocks = 0;
- u64 steering_icm_blocks = 0;
int err;
int i;
@@ -6173,51 +6165,17 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
INIT_LIST_HEAD(&dev->qp_list);
spin_lock_init(&dev->reset_flow_resource_lock);
- if (MLX5_CAP_GEN_64(mdev, general_obj_types) &
- MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM) {
- if (MLX5_CAP64_DEV_MEM(mdev, steering_sw_icm_start_address)) {
- steering_icm_blocks =
- BIT(MLX5_CAP_DEV_MEM(mdev,
- log_steering_sw_icm_size) -
- MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev));
-
- dev->dm.steering_sw_icm_alloc_blocks =
- kcalloc(BITS_TO_LONGS(steering_icm_blocks),
- sizeof(unsigned long), GFP_KERNEL);
- if (!dev->dm.steering_sw_icm_alloc_blocks)
- goto err_mp;
- }
-
- if (MLX5_CAP64_DEV_MEM(mdev,
- header_modify_sw_icm_start_address)) {
- header_modify_icm_blocks = BIT(
- MLX5_CAP_DEV_MEM(
- mdev, log_header_modify_sw_icm_size) -
- MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev));
-
- dev->dm.header_modify_sw_icm_alloc_blocks =
- kcalloc(BITS_TO_LONGS(header_modify_icm_blocks),
- sizeof(unsigned long), GFP_KERNEL);
- if (!dev->dm.header_modify_sw_icm_alloc_blocks)
- goto err_dm;
- }
- }
-
spin_lock_init(&dev->dm.lock);
dev->dm.dev = mdev;
if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
err = init_srcu_struct(&dev->mr_srcu);
if (err)
- goto err_dm;
+ goto err_mp;
}
return 0;
-err_dm:
- kfree(dev->dm.steering_sw_icm_alloc_blocks);
- kfree(dev->dm.header_modify_sw_icm_alloc_blocks);
-
err_mp:
mlx5_ib_cleanup_multiport_master(dev);
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index c482f19958b3..afd69ba33b2b 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -880,8 +880,6 @@ struct mlx5_dm {
*/
spinlock_t lock;
DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES);
- unsigned long *steering_sw_icm_alloc_blocks;
- unsigned long *header_modify_sw_icm_alloc_blocks;
};
struct mlx5_read_counters_attr {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 57d2cc666fe3..4eb52e8500c3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -15,7 +15,7 @@ mlx5_core-y := main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
health.o mcg.o cq.o alloc.o qp.o port.o mr.o pd.o \
transobj.o vport.o sriov.o fs_cmd.o fs_core.o pci_irq.o \
fs_counters.o rl.o lag.o dev.o events.o wq.o lib/gid.o \
- lib/devcom.o lib/pci_vsc.o diag/fs_tracepoint.o \
+ lib/devcom.o lib/pci_vsc.o lib/dm.o diag/fs_tracepoint.o \
diag/fw_tracer.o diag/crdump.o devlink.o
#
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/dm.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/dm.c
new file mode 100644
index 000000000000..e065c2f68f5a
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/dm.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2019 Mellanox Technologies
+
+#include <linux/mlx5/driver.h>
+#include <linux/mlx5/device.h>
+
+#include "mlx5_core.h"
+#include "lib/mlx5.h"
+
+struct mlx5_dm {
+ /* protect access to icm bitmask */
+ spinlock_t lock;
+ unsigned long *steering_sw_icm_alloc_blocks;
+ unsigned long *header_modify_sw_icm_alloc_blocks;
+};
+
+struct mlx5_dm *mlx5_dm_create(struct mlx5_core_dev *dev)
+{
+ u64 header_modify_icm_blocks = 0;
+ u64 steering_icm_blocks = 0;
+ struct mlx5_dm *dm;
+
+ if (!(MLX5_CAP_GEN_64(dev, general_obj_types) & MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM))
+ return 0;
+
+ dm = kzalloc(sizeof(*dm), GFP_KERNEL);
+ if (!dm)
+ return ERR_PTR(-ENOMEM);
+
+ spin_lock_init(&dm->lock);
+
+ if (MLX5_CAP64_DEV_MEM(dev, steering_sw_icm_start_address)) {
+ steering_icm_blocks =
+ BIT(MLX5_CAP_DEV_MEM(dev, log_steering_sw_icm_size) -
+ MLX5_LOG_SW_ICM_BLOCK_SIZE(dev));
+
+ dm->steering_sw_icm_alloc_blocks =
+ kcalloc(BITS_TO_LONGS(steering_icm_blocks),
+ sizeof(unsigned long), GFP_KERNEL);
+ if (!dm->steering_sw_icm_alloc_blocks)
+ goto err_steering;
+ }
+
+ if (MLX5_CAP64_DEV_MEM(dev, header_modify_sw_icm_start_address)) {
+ header_modify_icm_blocks =
+ BIT(MLX5_CAP_DEV_MEM(dev, log_header_modify_sw_icm_size) -
+ MLX5_LOG_SW_ICM_BLOCK_SIZE(dev));
+
+ dm->header_modify_sw_icm_alloc_blocks =
+ kcalloc(BITS_TO_LONGS(header_modify_icm_blocks),
+ sizeof(unsigned long), GFP_KERNEL);
+ if (!dm->header_modify_sw_icm_alloc_blocks)
+ goto err_modify_hdr;
+ }
+
+ return dm;
+
+err_modify_hdr:
+ kfree(dm->steering_sw_icm_alloc_blocks);
+
+err_steering:
+ kfree(dm);
+
+ return ERR_PTR(-ENOMEM);
+}
+
+void mlx5_dm_cleanup(struct mlx5_core_dev *dev)
+{
+ struct mlx5_dm *dm = dev->dm;
+
+ if (!dev->dm)
+ return;
+
+ if (dm->steering_sw_icm_alloc_blocks) {
+ WARN_ON(!bitmap_empty(dm->steering_sw_icm_alloc_blocks,
+ BIT(MLX5_CAP_DEV_MEM(dev, log_steering_sw_icm_size) -
+ MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))));
+ kfree(dm->steering_sw_icm_alloc_blocks);
+ }
+
+ if (dm->header_modify_sw_icm_alloc_blocks) {
+ WARN_ON(!bitmap_empty(dm->header_modify_sw_icm_alloc_blocks,
+ BIT(MLX5_CAP_DEV_MEM(dev,
+ log_header_modify_sw_icm_size) -
+ MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))));
+ kfree(dm->header_modify_sw_icm_alloc_blocks);
+ }
+
+ kfree(dm);
+}
+
+int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
+ u64 length, u16 uid, phys_addr_t *addr, u32 *obj_id)
+{
+ u32 num_blocks = DIV_ROUND_UP_ULL(length, MLX5_SW_ICM_BLOCK_SIZE(dev));
+ u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
+ u32 in[MLX5_ST_SZ_DW(create_sw_icm_in)] = {};
+ struct mlx5_dm *dm = dev->dm;
+ unsigned long *block_map;
+ u64 icm_start_addr;
+ u32 log_icm_size;
+ u32 max_blocks;
+ u64 block_idx;
+ void *sw_icm;
+ int ret;
+
+ if (!dev->dm)
+ return -EOPNOTSUPP;
+
+ if (!length || (length & (length - 1)) ||
+ length & (MLX5_SW_ICM_BLOCK_SIZE(dev) - 1))
+ return -EINVAL;
+
+ MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
+ MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
+ MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
+
+ switch (type) {
+ case MLX5_SW_ICM_TYPE_STEERING:
+ icm_start_addr = MLX5_CAP64_DEV_MEM(dev, steering_sw_icm_start_address);
+ log_icm_size = MLX5_CAP_DEV_MEM(dev, log_steering_sw_icm_size);
+ block_map = dm->steering_sw_icm_alloc_blocks;
+ break;
+ case MLX5_SW_ICM_TYPE_HEADER_MODIFY:
+ icm_start_addr = MLX5_CAP64_DEV_MEM(dev, header_modify_sw_icm_start_address);
+ log_icm_size = MLX5_CAP_DEV_MEM(dev,
+ log_header_modify_sw_icm_size);
+ block_map = dm->header_modify_sw_icm_alloc_blocks;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (!block_map)
+ return -EOPNOTSUPP;
+
+ max_blocks = BIT(log_icm_size - MLX5_LOG_SW_ICM_BLOCK_SIZE(dev));
+ spin_lock(&dm->lock);
+ block_idx = bitmap_find_next_zero_area(block_map,
+ max_blocks,
+ 0,
+ num_blocks, 0);
+
+ if (block_idx < max_blocks)
+ bitmap_set(block_map,
+ block_idx, num_blocks);
+
+ spin_unlock(&dm->lock);
+
+ if (block_idx >= max_blocks)
+ return -ENOMEM;
+
+ sw_icm = MLX5_ADDR_OF(create_sw_icm_in, in, sw_icm);
+ icm_start_addr += block_idx << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
+ MLX5_SET64(sw_icm, sw_icm, sw_icm_start_addr,
+ icm_start_addr);
+ MLX5_SET(sw_icm, sw_icm, log_sw_icm_size, ilog2(length));
+
+ ret = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+ if (ret) {
+ spin_lock(&dm->lock);
+ bitmap_clear(block_map,
+ block_idx, num_blocks);
+ spin_unlock(&dm->lock);
+
+ return ret;
+ }
+
+ *addr = icm_start_addr;
+ *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_dm_sw_icm_alloc);
+
+int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
+ u64 length, u16 uid, phys_addr_t addr, u32 obj_id)
+{
+ u32 num_blocks = DIV_ROUND_UP_ULL(length, MLX5_SW_ICM_BLOCK_SIZE(dev));
+ u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
+ u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {};
+ struct mlx5_dm *dm = dev->dm;
+ unsigned long *block_map;
+ u64 icm_start_addr;
+ u64 start_idx;
+ int err;
+
+ if (!dev->dm)
+ return -EOPNOTSUPP;
+
+ switch (type) {
+ case MLX5_SW_ICM_TYPE_STEERING:
+ icm_start_addr = MLX5_CAP64_DEV_MEM(dev, steering_sw_icm_start_address);
+ block_map = dm->steering_sw_icm_alloc_blocks;
+ break;
+ case MLX5_SW_ICM_TYPE_HEADER_MODIFY:
+ icm_start_addr = MLX5_CAP64_DEV_MEM(dev, header_modify_sw_icm_start_address);
+ block_map = dm->header_modify_sw_icm_alloc_blocks;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
+ MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, obj_id);
+ MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
+
+ err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+ if (err)
+ return err;
+
+ start_idx = (addr - icm_start_addr) >> MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
+ spin_lock(&dm->lock);
+ bitmap_clear(block_map,
+ start_idx, num_blocks);
+ spin_unlock(&dm->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_dm_sw_icm_dealloc);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 7f70ecb1db6d..c1679d11d71f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -879,6 +879,10 @@ static int mlx5_init_once(struct mlx5_core_dev *dev)
goto err_eswitch_cleanup;
}
+ dev->dm = mlx5_dm_create(dev);
+ if (IS_ERR(dev->dm))
+ mlx5_core_warn(dev, "Failed to init device memory%d\n", err);
+
dev->tracer = mlx5_fw_tracer_create(dev);
return 0;
@@ -912,6 +916,7 @@ err_devcom:
static void mlx5_cleanup_once(struct mlx5_core_dev *dev)
{
mlx5_fw_tracer_destroy(dev->tracer);
+ mlx5_dm_cleanup(dev);
mlx5_fpga_cleanup(dev);
mlx5_eswitch_cleanup(dev->priv.eswitch);
mlx5_sriov_cleanup(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index 471bbc48bc1f..bbcf4ee40ad5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -198,6 +198,9 @@ int mlx5_set_mtpps(struct mlx5_core_dev *mdev, u32 *mtpps, u32 mtpps_size);
int mlx5_query_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 *arm, u8 *mode);
int mlx5_set_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 arm, u8 mode);
+struct mlx5_dm *mlx5_dm_create(struct mlx5_core_dev *dev);
+void mlx5_dm_cleanup(struct mlx5_core_dev *dev);
+
#define MLX5_PPS_CAP(mdev) (MLX5_CAP_GEN((mdev), pps) && \
MLX5_CAP_GEN((mdev), pps_modify) && \
MLX5_CAP_MCAM_FEATURE((mdev), mtpps_fs) && \
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 0acd28f2e62c..72bc6ce44b55 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -622,6 +622,11 @@ struct mlx5e_resources {
struct mlx5_sq_bfreg bfreg;
};
+enum mlx5_sw_icm_type {
+ MLX5_SW_ICM_TYPE_STEERING,
+ MLX5_SW_ICM_TYPE_HEADER_MODIFY,
+};
+
#define MLX5_MAX_RESERVED_GIDS 8
struct mlx5_rsvd_gids {
@@ -653,10 +658,14 @@ struct mlx5_clock {
struct mlx5_pps pps_info;
};
+struct mlx5_dm;
struct mlx5_fw_tracer;
struct mlx5_vxlan;
struct mlx5_geneve;
+#define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
+#define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
+
struct mlx5_core_dev {
struct device *device;
enum mlx5_coredev_type coredev_type;
@@ -690,6 +699,7 @@ struct mlx5_core_dev {
atomic_t num_qps;
u32 issi;
struct mlx5e_resources mlx5e_res;
+ struct mlx5_dm *dm;
struct mlx5_vxlan *vxlan;
struct mlx5_geneve *geneve;
struct {
@@ -1072,6 +1082,10 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
size_t *offsets);
struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
+int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
+ u64 length, u16 uid, phys_addr_t *addr, u32 *obj_id);
+int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
+ u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
#ifdef CONFIG_MLX5_CORE_IPOIB
struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
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