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authorVishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>2017-04-13 06:29:20 +0300
committerDoug Ledford <dledford@redhat.com>2017-04-20 19:01:38 +0300
commit2fc77572649163f8d669389e87217cc99942847a (patch)
tree67ca1cfcde41333ada8e82f0a778becff6923f01 /include/rdma
parentc73690ca16b1dd17b5e45d23fb2d76d083fb03bf (diff)
downloadlinux-2fc77572649163f8d669389e87217cc99942847a.tar.xz
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: 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>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 4ce7c20fe219..dd02ba53fd1f 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -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;