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common/mlx5: add memory reclaim glue function

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While flow destroyed, rdma-core may still cache some resources for more
efficiently flow recreate. In case the peak time that millions of flows
created and destroyed, the cached resources will be very huge.

Currently, rdma-core provides the new function to configure the flow
resources not to be cached. Add the memory reclaim function to avoid
too many resources be cached.

This is the first patch for the memory reclaim. A new devarg will be
added to PMD to support the reclaim can be configured.

Signed-off-by: Suanming Mou <suanmingm@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
This commit is contained in:
Suanming Mou 2020-06-01 14:09:42 +08:00 committed by Ferruh Yigit
parent 79aa430721
commit bebee85016
4 changed files with 21 additions and 0 deletions
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5
drivers/common/mlx5/Makefile
View File

@ -195,6 +195,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
infiniband/mlx5dv.h \
func mlx5dv_alloc_var \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5DV_DR_MEM_RECLAIM \
infiniband/mlx5dv.h \
func mlx5dv_dr_domain_set_reclaim_device_memory \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_ETHTOOL_LINK_MODE_25G \
/usr/include/linux/ethtool.h \

2
drivers/common/mlx5/linux/meson.build
View File

@ -159,6 +159,8 @@ has_sym_args = [
'RDMA_NLDEV_ATTR_NDEV_INDEX' ],
[ 'HAVE_MLX5_DR_FLOW_DUMP', 'infiniband/mlx5dv.h',
'mlx5dv_dump_dr_domain'],
[ 'HAVE_MLX5DV_DR_MEM_RECLAIM', 'infiniband/mlx5dv.h',
'mlx5dv_dr_domain_set_reclaim_device_memory'],
[ 'HAVE_DEVLINK', 'linux/devlink.h', 'DEVLINK_GENL_NAME' ],
]
config = configuration_data()

13
drivers/common/mlx5/linux/mlx5_glue.c
View File

@ -1182,6 +1182,18 @@ mlx5_glue_dv_free_var(struct mlx5dv_var *var)
#endif
}
static void
mlx5_glue_dr_reclaim_domain_memory(void *domain, uint32_t enable)
{
#ifdef HAVE_MLX5DV_DR_MEM_RECLAIM
mlx5dv_dr_domain_set_reclaim_device_memory(domain, enable);
#else
(void)(enable);
(void)(domain);
#endif
}
__rte_cache_aligned
const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
.version = MLX5_GLUE_VERSION,
@ -1281,6 +1293,7 @@ const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
.devx_qp_query = mlx5_glue_devx_qp_query,
.devx_port_query = mlx5_glue_devx_port_query,
.dr_dump_domain = mlx5_glue_dr_dump_domain,
.dr_reclaim_domain_memory = mlx5_glue_dr_reclaim_domain_memory,
.devx_query_eqn = mlx5_glue_devx_query_eqn,
.devx_create_event_channel = mlx5_glue_devx_create_event_channel,
.devx_destroy_event_channel = mlx5_glue_devx_destroy_event_channel,

1
drivers/common/mlx5/linux/mlx5_glue.h
View File

@ -302,6 +302,7 @@ struct mlx5_glue {
(struct mlx5dv_devx_event_channel *event_channel,
struct mlx5dv_devx_async_event_hdr *event_data,
size_t event_resp_len);
void (*dr_reclaim_domain_memory)(void *domain, uint32_t enable);
};
extern const struct mlx5_glue *mlx5_glue;