From 2fc77572649163f8d669389e87217cc99942847a Mon Sep 17 00:00:00 2001 From: "Vishwanathapura, Niranjana" Date: Wed, 12 Apr 2017 20:29:20 -0700 Subject: [PATCH] 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 Reviewed-by: Ira Weiny Signed-off-by: Niranjana Vishwanathapura Signed-off-by: Doug Ledford --- include/rdma/ib_verbs.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) 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 #include #include +#include #include #include @@ -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; -- 2.20.1