Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 64f817ba authored by Ralph Campbell's avatar Ralph Campbell Committed by Roland Dreier
Browse files

IB/uverbs: Allow resize CQ operation to return driver-specific data 



Add a ib_uverbs_resize_cq_resp.driver_data field so that low-level
drivers can return data from a resize CQ operation to userspace.  Have
ib_uverbs_resize_cq() only copy the cqe field, to avoid having to bump
the userspace ABI.

Signed-off-by: default avatarRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent fab97220

drivers/infiniband/core/uverbs_cmd.c

+1 −2
Original line number Diff line number Diff line
@@ -879,11 +879,10 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file, 
	if (ret)

		goto out;



	memset(&resp, 0, sizeof resp);

	resp.cqe = cq->cqe;



	if (copy_to_user((void __user *) (unsigned long) cmd.response,

			 &resp, sizeof resp))

			 &resp, sizeof resp.cqe))

		ret = -EFAULT;



out:

include/rdma/ib_user_verbs.h

+2 −0
Original line number Diff line number Diff line
@@ -275,6 +275,8 @@ struct ib_uverbs_resize_cq { 


struct ib_uverbs_resize_cq_resp {

	__u32 cqe;

	__u32 reserved;

	__u64 driver_data[0];

};



struct ib_uverbs_poll_cq {