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IB/opa-vnic: RDMA NETDEV interface

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

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Vishwanathapura, Niranjana 2017-04-12 20:29:20 -07:00 committed by Doug Ledford
parent c73690ca16
commit 2fc7757264
1 changed files with 33 additions and 0 deletions
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33
include/rdma/ib_verbs.h
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@ -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;