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authorMatan Barak <matanb@mellanox.com>2017-08-03 16:07:07 +0300
committerDoug Ledford <dledford@redhat.com>2017-08-31 15:35:14 +0300
commit8eb19e8e7c8658226d8b7e75728e6dfa2ef32717 (patch)
treee6415833591c157b335a60d3dc20e04312459d8a
parent524271129401ed896dc76e49acdbafc506cb41ac (diff)
downloadlinux-8eb19e8e7c8658226d8b7e75728e6dfa2ef32717.tar.xz
IB/core: Expose ioctl interface through experimental Kconfig
Add CONFIG_INFINIBAND_EXP_USER_ACCESS that enables the ioctl interface. This interface is experimental and is subject to change. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/Kconfig9
-rw-r--r--drivers/infiniband/core/uverbs.h2
-rw-r--r--drivers/infiniband/core/uverbs_main.c6
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 234fe01904e7..3726205c8704 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -34,6 +34,15 @@ config INFINIBAND_USER_ACCESS
libibverbs, libibcm and a hardware driver library from
<http://www.openfabrics.org/git/>.
+config INFINIBAND_EXP_USER_ACCESS
+ bool "Allow experimental support for Infiniband ABI"
+ depends on INFINIBAND_USER_ACCESS
+ ---help---
+ IOCTL based ABI support for Infiniband. This allows userspace
+ to invoke the experimental IOCTL based ABI.
+ These commands are parsed via per-device parsing tree and
+ enables per-device features.
+
config INFINIBAND_USER_MEM
bool
depends on INFINIBAND_USER_ACCESS != n
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 0f6f768f687e..37c8903e7fd0 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -219,6 +219,8 @@ int uverbs_dealloc_mw(struct ib_mw *mw);
void ib_uverbs_detach_umcast(struct ib_qp *qp,
struct ib_uqp_object *uobj);
+long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+
struct ib_uverbs_flow_spec {
union {
union {
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 872fec910c16..dc2aed6fb21b 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -939,6 +939,9 @@ static const struct file_operations uverbs_fops = {
.open = ib_uverbs_open,
.release = ib_uverbs_close,
.llseek = no_llseek,
+#if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS)
+ .unlocked_ioctl = ib_uverbs_ioctl,
+#endif
};
static const struct file_operations uverbs_mmap_fops = {
@@ -948,6 +951,9 @@ static const struct file_operations uverbs_mmap_fops = {
.open = ib_uverbs_open,
.release = ib_uverbs_close,
.llseek = no_llseek,
+#if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS)
+ .unlocked_ioctl = ib_uverbs_ioctl,
+#endif
};
static struct ib_client uverbs_client = {