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RDMA/core: Move flow related functions to ib_uverbs_support.ko

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mlx5 uses these as part of the driver implementation, move them to the
support module instead.

Link: https://patch.msgid.link/r/6-v3-43aba1969751+1988-ib_uverbs_support_ko_jgg@nvidia.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Jason Gunthorpe 2026-05-25 22:22:42 -03:00
parent 1a76adc9b3
commit 9733e9f580
3 changed files with 80 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/infiniband/core/Makefile
View File

@ -49,4 +49,5 @@ ib_uverbs-y := uverbs_main.o uverbs_cmd.o uverbs_marshall.o \
uverbs_std_types_qp.o
ib_uverbs_support-y := rdma_core.o \
ucaps.o
ucaps.o \
uverbs_flow.o

76
drivers/infiniband/core/uverbs_cmd.c
View File

@ -2594,82 +2594,6 @@ static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs)
return ret;
}
struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
{
struct ib_uflow_resources *resources;
resources = kzalloc_obj(*resources);
if (!resources)
return NULL;
if (!num_specs)
goto out;
resources->counters =
kzalloc_objs(*resources->counters, num_specs);
resources->collection =
kzalloc_objs(*resources->collection, num_specs);
if (!resources->counters || !resources->collection)
goto err;
out:
resources->max = num_specs;
return resources;
err:
kfree(resources->counters);
kfree(resources);
return NULL;
}
EXPORT_SYMBOL(flow_resources_alloc);
void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
{
unsigned int i;
if (!uflow_res)
return;
for (i = 0; i < uflow_res->collection_num; i++)
atomic_dec(&uflow_res->collection[i]->usecnt);
for (i = 0; i < uflow_res->counters_num; i++)
atomic_dec(&uflow_res->counters[i]->usecnt);
kfree(uflow_res->collection);
kfree(uflow_res->counters);
kfree(uflow_res);
}
EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
void flow_resources_add(struct ib_uflow_resources *uflow_res,
enum ib_flow_spec_type type,
void *ibobj)
{
WARN_ON(uflow_res->num >= uflow_res->max);
switch (type) {
case IB_FLOW_SPEC_ACTION_HANDLE:
atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
uflow_res->collection[uflow_res->collection_num++] =
(struct ib_flow_action *)ibobj;
break;
case IB_FLOW_SPEC_ACTION_COUNT:
atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
uflow_res->counters[uflow_res->counters_num++] =
(struct ib_counters *)ibobj;
break;
default:
WARN_ON(1);
}
uflow_res->num++;
}
EXPORT_SYMBOL(flow_resources_add);
static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs,
struct ib_uverbs_flow_spec *kern_spec,
union ib_flow_spec *ib_spec,

78
drivers/infiniband/core/uverbs_flow.c Normal file
View File

@ -0,0 +1,78 @@
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
#include "uverbs.h"
struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
{
struct ib_uflow_resources *resources;
resources = kzalloc_obj(*resources);
if (!resources)
return NULL;
if (!num_specs)
goto out;
resources->counters =
kzalloc_objs(*resources->counters, num_specs);
resources->collection =
kzalloc_objs(*resources->collection, num_specs);
if (!resources->counters || !resources->collection)
goto err;
out:
resources->max = num_specs;
return resources;
err:
kfree(resources->counters);
kfree(resources);
return NULL;
}
EXPORT_SYMBOL(flow_resources_alloc);
void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
{
unsigned int i;
if (!uflow_res)
return;
for (i = 0; i < uflow_res->collection_num; i++)
atomic_dec(&uflow_res->collection[i]->usecnt);
for (i = 0; i < uflow_res->counters_num; i++)
atomic_dec(&uflow_res->counters[i]->usecnt);
kfree(uflow_res->collection);
kfree(uflow_res->counters);
kfree(uflow_res);
}
EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
void flow_resources_add(struct ib_uflow_resources *uflow_res,
enum ib_flow_spec_type type,
void *ibobj)
{
WARN_ON(uflow_res->num >= uflow_res->max);
switch (type) {
case IB_FLOW_SPEC_ACTION_HANDLE:
atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
uflow_res->collection[uflow_res->collection_num++] =
(struct ib_flow_action *)ibobj;
break;
case IB_FLOW_SPEC_ACTION_COUNT:
atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
uflow_res->counters[uflow_res->counters_num++] =
(struct ib_counters *)ibobj;
break;
default:
WARN_ON(1);
}
uflow_res->num++;
}
EXPORT_SYMBOL(flow_resources_add);