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Commit 2fc77572 authored by Vishwanathapura, Niranjana's avatar Vishwanathapura, Niranjana Committed by Doug Ledford
Browse files

IB/opa-vnic: RDMA NETDEV interface 



Add rdma netdev interface to ib device structure allowing rdma netdev
devices to be allocated by ib clients.

Reviewed-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: default avatarIra Weiny <ira.weiny@intel.com>
Signed-off-by: default avatarNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c73690ca

include/rdma/ib_verbs.h

+33 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ 
#include <net/ip.h>

#include <linux/string.h>

#include <linux/slab.h>

#include <linux/netdevice.h>



#include <linux/if_link.h>

#include <linux/atomic.h>
@@ -1877,6 +1878,24 @@ struct ib_port_immutable { 
	u32                           max_mad_size;

};



/* rdma netdev type - specifies protocol type */

enum rdma_netdev_t {

	RDMA_NETDEV_OPA_VNIC

};



/**

 * struct rdma_netdev - rdma netdev

 * For cases where netstack interfacing is required.

 */

struct rdma_netdev {

	void              *clnt_priv;

	struct ib_device  *hca;

	u8                 port_num;



	/* control functions */

	void (*set_id)(struct net_device *netdev, int id);

};



struct ib_device {

	/* Do not access @dma_device directly from ULP nor from HW drivers. */

	struct device                *dma_device;
@@ -2130,6 +2149,20 @@ struct ib_device { 
							   struct ib_rwq_ind_table_init_attr *init_attr,

							   struct ib_udata *udata);

	int                        (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);

	/**

	 * rdma netdev operations

	 *

	 * Driver implementing alloc_rdma_netdev must return -EOPNOTSUPP if it

	 * doesn't support the specified rdma netdev type.

	 */

	struct net_device *(*alloc_rdma_netdev)(

					struct ib_device *device,

					u8 port_num,

					enum rdma_netdev_t type,

					const char *name,

					unsigned char name_assign_type,

					void (*setup)(struct net_device *));

	void (*free_rdma_netdev)(struct net_device *netdev);



	struct module               *owner;

	struct device                dev;