From: Parav Pandit <parav@xxxxxxxxxx>
If device doesn't have multicast capability, avoid client registration
for it. This saves 16Kbytes of memory for a RDMA device consist of 128
ports.
If device doesn't support subnet administration, avoid client
registration for it. This saves 8Kbytes of memory for a RDMA device
consist of 128 ports.
Signed-off-by: Parav Pandit <parav@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/core/multicast.c | 15 ++++++++++++++-
drivers/infiniband/core/sa_query.c | 15 ++++++++++++++-
2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index a5dd4b7a74bc..8c81acc24e3e 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -44,11 +44,13 @@
static int mcast_add_one(struct ib_device *device);
static void mcast_remove_one(struct ib_device *device, void *client_data);
+static bool mcast_client_supported(struct ib_device *device);
static struct ib_client mcast_client = {
.name = "ib_multicast",
.add = mcast_add_one,
- .remove = mcast_remove_one
+ .remove = mcast_remove_one,
+ .is_supported = mcast_client_supported,
};
static struct ib_sa_client sa_client;
@@ -816,6 +818,17 @@ static void mcast_event_handler(struct ib_event_handler *handler,
}
}
+static bool mcast_client_supported(struct ib_device *device)
+{
+ u32 i;
+
+ rdma_for_each_port(device, i) {
+ if (rdma_cap_ib_mcast(device, i))
+ return true;
+ }
+ return false;
+}
+
static int mcast_add_one(struct ib_device *device)
{
struct mcast_device *dev;
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 9a4a49c37922..7e00e24d9423 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -176,11 +176,13 @@ static const struct nla_policy ib_nl_policy[LS_NLA_TYPE_MAX] = {
static int ib_sa_add_one(struct ib_device *device);
static void ib_sa_remove_one(struct ib_device *device, void *client_data);
+static bool ib_sa_client_supported(struct ib_device *device);
static struct ib_client sa_client = {
.name = "sa",
.add = ib_sa_add_one,
- .remove = ib_sa_remove_one
+ .remove = ib_sa_remove_one,
+ .is_supported = ib_sa_client_supported,
};
static DEFINE_XARRAY_FLAGS(queries, XA_FLAGS_ALLOC | XA_FLAGS_LOCK_IRQ);
@@ -2293,6 +2295,17 @@ static void ib_sa_event(struct ib_event_handler *handler,
}
}
+static bool ib_sa_client_supported(struct ib_device *device)
+{
+ unsigned int i;
+
+ rdma_for_each_port(device, i) {
+ if (rdma_cap_ib_sa(device, i))
+ return true;
+ }
+ return false;
+}
+
static int ib_sa_add_one(struct ib_device *device)
{
struct ib_sa_device *sa_dev;
--
2.30.2
