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Commit 73937e8a authored by Steve Wise's avatar Steve Wise Committed by Doug Ledford
Browse files

RDMA/nldev: helper functions to add driver attributes 



These help rdma drivers to fill out the driver entries.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent da5c8507

drivers/infiniband/core/nldev.c

+66 −0
Original line number Diff line number Diff line
@@ -109,6 +109,72 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { 
	[RDMA_NLDEV_ATTR_DRIVER_U64]		= { .type = NLA_U64 },

};



static int put_driver_name_print_type(struct sk_buff *msg, const char *name,

				      enum rdma_nldev_print_type print_type)

{

	if (nla_put_string(msg, RDMA_NLDEV_ATTR_DRIVER_STRING, name))

		return -EMSGSIZE;

	if (print_type != RDMA_NLDEV_PRINT_TYPE_UNSPEC &&

	    nla_put_u8(msg, RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE, print_type))

		return -EMSGSIZE;



	return 0;

}



static int _rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name,

				   enum rdma_nldev_print_type print_type,

				   u32 value)

{

	if (put_driver_name_print_type(msg, name, print_type))

		return -EMSGSIZE;

	if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DRIVER_U32, value))

		return -EMSGSIZE;



	return 0;

}



static int _rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name,

				   enum rdma_nldev_print_type print_type,

				   u64 value)

{

	if (put_driver_name_print_type(msg, name, print_type))

		return -EMSGSIZE;

	if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_DRIVER_U64, value,

			      RDMA_NLDEV_ATTR_PAD))

		return -EMSGSIZE;



	return 0;

}



int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value)

{

	return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,

				       value);

}

EXPORT_SYMBOL(rdma_nl_put_driver_u32);



int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,

			       u32 value)

{

	return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,

				       value);

}

EXPORT_SYMBOL(rdma_nl_put_driver_u32_hex);



int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value)

{

	return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,

				       value);

}

EXPORT_SYMBOL(rdma_nl_put_driver_u64);



int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name, u64 value)

{

	return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,

				       value);

}

EXPORT_SYMBOL(rdma_nl_put_driver_u64_hex);



static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device)

{

	if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))

include/rdma/restrack.h

+11 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/kref.h>

#include <linux/completion.h>

#include <linux/sched/task.h>

#include <uapi/rdma/rdma_netlink.h>



/**

 * enum rdma_restrack_type - HW objects to track
@@ -183,4 +184,14 @@ static inline void rdma_restrack_set_task(struct rdma_restrack_entry *res, 
	res->task = task;

}



/*

 * Helper functions for rdma drivers when filling out

 * nldev driver attributes.

 */

int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value);

int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,

			       u32 value);

int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value);

int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name,

			       u64 value);

#endif /* _RDMA_RESTRACK_H_ */