[PATCH rdma-next V1 13/13] IB/core: Expose ioctl interface through experimental Kconfig
From: Matan Barak <hidden>
Date: 2017-08-03 13:07:07
Also in:
linux-rdma
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
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-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Reviewed-by: Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> --- drivers/infiniband/Kconfig | 9 +++++++++ drivers/infiniband/core/uverbs.h | 2 ++ drivers/infiniband/core/uverbs_main.c | 6 ++++++ 3 files changed, 17 insertions(+)
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 234fe01..3726205 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 0f6f768..37c8903 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h@@ -219,6 +219,8 @@ int ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd, 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 0fcea1b..a88d223 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c@@ -951,6 +951,9 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp) .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 = {
@@ -960,6 +963,9 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp) .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 = {
--
1.8.3.1