/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause *//* * Copyright(c) 2017 Intel Corporation. */ #ifndef OPA_ADDR_H#define OPA_ADDR_H #include <rdma/opa_smi.h> #define	OPA_SPECIAL_OUI		(0x00066AULL)#define OPA_MAKE_ID(x)          (cpu_to_be64(OPA_SPECIAL_OUI << 40 | (x)))#define OPA_TO_IB_UCAST_LID(x) (((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \				? 0 : x)#define OPA_GID_INDEX		0x1/** * 0xF8 - 4 bits of multicast range and 1 bit for collective range * Example: For 24 bit LID space, * Multicast range: 0xF00000 to 0xF7FFFF * Collective range: 0xF80000 to 0xFFFFFE */#define OPA_MCAST_NR 0x4 /* Number of top bits set */#define OPA_COLLECTIVE_NR 0x1 /* Number of bits after MCAST_NR */ /** * ib_is_opa_gid: Returns true if the top 24 bits of the gid * contains the OPA_STL_OUI identifier. This identifies that * the provided gid is a special purpose GID meant to carry * extended LID information. * * @gid: The Global identifier */static inline bool ib_is_opa_gid(const union ib_gid *gid){	return ((be64_to_cpu(gid->global.interface_id) >> 40) ==		OPA_SPECIAL_OUI);} /** * opa_get_lid_from_gid: Returns the last 32 bits of the gid. * OPA devices use one of the gids in the gid table to also * store the lid. * * @gid: The Global identifier */static inline u32 opa_get_lid_from_gid(const union ib_gid *gid){	return be64_to_cpu(gid->global.interface_id) & 0xFFFFFFFF;} /** * opa_is_extended_lid: Returns true if dlid or slid are * extended. * * @dlid: The DLID * @slid: The SLID */static inline bool opa_is_extended_lid(__be32 dlid, __be32 slid){	if ((be32_to_cpu(dlid) >=	     be16_to_cpu(IB_MULTICAST_LID_BASE)) ||	    (be32_to_cpu(slid) >=	     be16_to_cpu(IB_MULTICAST_LID_BASE)))		return true; 	return false;} /* Get multicast lid base */static inline u32 opa_get_mcast_base(u32 nr_top_bits){	return (be32_to_cpu(OPA_LID_PERMISSIVE) << (32 - nr_top_bits));} /* Check for a valid unicast LID for non-SM traffic types */static inline bool rdma_is_valid_unicast_lid(struct rdma_ah_attr *attr){	if (attr->type == RDMA_AH_ATTR_TYPE_IB) {		if (!rdma_ah_get_dlid(attr) ||		    rdma_ah_get_dlid(attr) >=		    be16_to_cpu(IB_MULTICAST_LID_BASE))			return false;	} else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) {		if (!rdma_ah_get_dlid(attr) ||		    rdma_ah_get_dlid(attr) >=		    opa_get_mcast_base(OPA_MCAST_NR))			return false;	}	return true;}#endif /* OPA_ADDR_H */