IB/cma: Add configfs for rdma_cm
Users would like to control the behaviour of rdma_cm.
For example, old applications which don't set the
required RoCE gid type could be executed on RoCE V2
network types. In order to support this configuration,
we implement a configfs for rdma_cm.
In order to use the configfs, one needs to mount it and
mkdir <IB device name> inside rdma_cm directory.
The patch adds support for a single configuration file,
default_roce_mode. The mode can either be "IB/RoCE v1" or
"RoCE v2".
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 282ec0b..8a8440c 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -55,6 +55,15 @@
depends on INFINIBAND
default y
+config INFINIBAND_ADDR_TRANS_CONFIGFS
+ bool
+ depends on INFINIBAND_ADDR_TRANS && CONFIGFS_FS && !(INFINIBAND=y && CONFIGFS_FS=m)
+ default y
+ ---help---
+ ConfigFS support for RDMA communication manager (CM).
+ This allows the user to config the default GID type that the CM
+ uses for each device, when initiaing new connections.
+
source "drivers/infiniband/hw/mthca/Kconfig"
source "drivers/infiniband/hw/qib/Kconfig"
source "drivers/infiniband/hw/cxgb3/Kconfig"