[1/2] common/mlx5: add memory reclaim glue function
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Commit Message
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 proivdes 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>
---
drivers/common/mlx5/Makefile | 5 +++++
drivers/common/mlx5/meson.build | 2 ++
drivers/common/mlx5/mlx5_glue.c | 13 +++++++++++++
drivers/common/mlx5/mlx5_glue.h | 1 +
4 files changed, 21 insertions(+)
@@ -193,6 +193,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
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 \
enum ETHTOOL_LINK_MODE_25000baseCR_Full_BIT \
@@ -185,6 +185,8 @@ 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()
@@ -1182,6 +1182,18 @@
#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 @@
.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,
@@ -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;