diff options
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 27 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 119 |
2 files changed, 144 insertions, 2 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 22192deb8828..87a8102c9dbe 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1254,3 +1254,30 @@ int ib_dealloc_xrcd(struct ib_xrcd *xrcd) return xrcd->device->dealloc_xrcd(xrcd); } EXPORT_SYMBOL(ib_dealloc_xrcd); + +struct ib_flow *ib_create_flow(struct ib_qp *qp, + struct ib_flow_attr *flow_attr, + int domain) +{ + struct ib_flow *flow_id; + if (!qp->device->create_flow) + return ERR_PTR(-ENOSYS); + + flow_id = qp->device->create_flow(qp, flow_attr, domain); + if (!IS_ERR(flow_id)) + atomic_inc(&qp->usecnt); + return flow_id; +} +EXPORT_SYMBOL(ib_create_flow); + +int ib_destroy_flow(struct ib_flow *flow_id) +{ + int err; + struct ib_qp *qp = flow_id->qp; + + err = qp->device->destroy_flow(flow_id); + if (!err) + atomic_dec(&qp->usecnt); + return err; +} +EXPORT_SYMBOL(ib_destroy_flow); diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 645c3cedce9c..6f874b00491a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -116,7 +116,8 @@ enum ib_device_cap_flags { IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21), IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22), IB_DEVICE_MEM_WINDOW_TYPE_2A = (1<<23), - IB_DEVICE_MEM_WINDOW_TYPE_2B = (1<<24) + IB_DEVICE_MEM_WINDOW_TYPE_2B = (1<<24), + IB_DEVICE_MANAGED_FLOW_STEERING = (1<<29) }; enum ib_atomic_cap { @@ -1033,7 +1034,8 @@ struct ib_qp { struct ib_srq *srq; struct ib_xrcd *xrcd; /* XRC TGT QPs only */ struct list_head xrcd_list; - atomic_t usecnt; /* count times opened, mcast attaches */ + /* count times opened, mcast attaches, flow attaches */ + atomic_t usecnt; struct list_head open_list; struct ib_qp *real_qp; struct ib_uobject *uobject; @@ -1068,6 +1070,110 @@ struct ib_fmr { u32 rkey; }; +/* Supported steering options */ +enum ib_flow_attr_type { + /* steering according to rule specifications */ + IB_FLOW_ATTR_NORMAL = 0x0, + /* default unicast and multicast rule - + * receive all Eth traffic which isn't steered to any QP + */ + IB_FLOW_ATTR_ALL_DEFAULT = 0x1, + /* default multicast rule - + * receive all Eth multicast traffic which isn't steered to any QP + */ + IB_FLOW_ATTR_MC_DEFAULT = 0x2, + /* sniffer rule - receive all port traffic */ + IB_FLOW_ATTR_SNIFFER = 0x3 +}; + +/* Supported steering header types */ +enum ib_flow_spec_type { + /* L2 headers*/ + IB_FLOW_SPEC_ETH = 0x20, + /* L3 header*/ + IB_FLOW_SPEC_IPV4 = 0x30, + /* L4 headers*/ + IB_FLOW_SPEC_TCP = 0x40, + IB_FLOW_SPEC_UDP = 0x41 +}; + +/* Flow steering rule priority is set according to it's domain. + * Lower domain value means higher priority. + */ +enum ib_flow_domain { + IB_FLOW_DOMAIN_USER, + IB_FLOW_DOMAIN_ETHTOOL, + IB_FLOW_DOMAIN_RFS, + IB_FLOW_DOMAIN_NIC, + IB_FLOW_DOMAIN_NUM /* Must be last */ +}; + +struct ib_flow_eth_filter { + u8 dst_mac[6]; + u8 src_mac[6]; + __be16 ether_type; + __be16 vlan_tag; +}; + +struct ib_flow_spec_eth { + enum ib_flow_spec_type type; + u16 size; + struct ib_flow_eth_filter val; + struct ib_flow_eth_filter mask; +}; + +struct ib_flow_ipv4_filter { + __be32 src_ip; + __be32 dst_ip; +}; + +struct ib_flow_spec_ipv4 { + enum ib_flow_spec_type type; + u16 size; + struct ib_flow_ipv4_filter val; + struct ib_flow_ipv4_filter mask; +}; + +struct ib_flow_tcp_udp_filter { + __be16 dst_port; + __be16 src_port; +}; + +struct ib_flow_spec_tcp_udp { + enum ib_flow_spec_type type; + u16 size; + struct ib_flow_tcp_udp_filter val; + struct ib_flow_tcp_udp_filter mask; +}; + +union ib_flow_spec { + struct { + enum ib_flow_spec_type type; + u16 size; + }; + struct ib_flow_spec_eth eth; + struct ib_flow_spec_ipv4 ipv4; + struct ib_flow_spec_tcp_udp tcp_udp; +}; + +struct ib_flow_attr { + enum ib_flow_attr_type type; + u16 size; + u16 priority; + u32 flags; + u8 num_of_specs; + u8 port; + /* Following are the optional layers according to user request + * struct ib_flow_spec_xxx + * struct ib_flow_spec_yyy + */ +}; + +struct ib_flow { + struct ib_qp *qp; + struct ib_uobject *uobject; +}; + struct ib_mad; struct ib_grh; @@ -1300,6 +1406,11 @@ struct ib_device { struct ib_ucontext *ucontext, struct ib_udata *udata); int (*dealloc_xrcd)(struct ib_xrcd *xrcd); + struct ib_flow * (*create_flow)(struct ib_qp *qp, + struct ib_flow_attr + *flow_attr, + int domain); + int (*destroy_flow)(struct ib_flow *flow_id); struct ib_dma_mapping_ops *dma_ops; @@ -2260,4 +2371,8 @@ struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device); */ int ib_dealloc_xrcd(struct ib_xrcd *xrcd); +struct ib_flow *ib_create_flow(struct ib_qp *qp, + struct ib_flow_attr *flow_attr, int domain); +int ib_destroy_flow(struct ib_flow *flow_id); + #endif /* IB_VERBS_H */ |