/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright(c) 2015 - 2020 Intel Corporation. */ #ifndef _COMMON_H #define _COMMON_H #include <rdma/hfi/hfi1_user.h> /* * This file contains defines, structures, etc. that are used * to communicate between kernel and user code. */ /* version of protocol header (known to chip also). In the long run, * we should be able to generate and accept a range of version numbers; * for now we only accept one, and it's compiled in. */ #define IPS_PROTO_VERSION … /* * These are compile time constants that you may want to enable or disable * if you are trying to debug problems with code or performance. * HFI1_VERBOSE_TRACING define as 1 if you want additional tracing in * fast path code * HFI1_TRACE_REGWRITES define as 1 if you want register writes to be * traced in fast path code * _HFI1_TRACING define as 0 if you want to remove all tracing in a * compilation unit */ /* driver/hw feature set bitmask */ #define HFI1_CAP_USER_SHIFT … #define HFI1_CAP_MASK … /* locked flag - if set, only HFI1_CAP_WRITABLE_MASK bits can be set */ #define HFI1_CAP_LOCKED_SHIFT … #define HFI1_CAP_LOCKED_MASK … #define HFI1_CAP_LOCKED_SMASK … /* extra bits used between kernel and user processes */ #define HFI1_CAP_MISC_SHIFT … #define HFI1_CAP_MISC_MASK … #define HFI1_CAP_KSET(cap) … #define HFI1_CAP_KCLEAR(cap) … #define HFI1_CAP_USET(cap) … #define HFI1_CAP_UCLEAR(cap) … #define HFI1_CAP_SET(cap) … #define HFI1_CAP_CLEAR(cap) … #define HFI1_CAP_LOCK() … #define HFI1_CAP_LOCKED() … /* * The set of capability bits that can be changed after initial load * This set is the same for kernel and user contexts. However, for * user contexts, the set can be further filtered by using the * HFI1_CAP_RESERVED_MASK bits. */ #define HFI1_CAP_WRITABLE_MASK … /* * A set of capability bits that are "global" and are not allowed to be * set in the user bitmask. */ #define HFI1_CAP_RESERVED_MASK … /* * Set of capabilities that need to be enabled for kernel context in * order to be allowed for user contexts, as well. */ #define HFI1_CAP_MUST_HAVE_KERN … /* Default enabled capabilities (both kernel and user) */ #define HFI1_CAP_MASK_DEFAULT … /* * A bitmask of kernel/global capabilities that should be communicated * to user level processes. */ #define HFI1_CAP_K2U … #define HFI1_USER_SWVERSION … /* * The next set of defines are for packet headers, and chip register * and memory bits that are visible to and/or used by user-mode software. */ /* * Receive Header Flags */ #define RHF_PKT_LEN_SHIFT … #define RHF_PKT_LEN_MASK … #define RHF_PKT_LEN_SMASK … #define RHF_RCV_TYPE_SHIFT … #define RHF_RCV_TYPE_MASK … #define RHF_RCV_TYPE_SMASK … #define RHF_USE_EGR_BFR_SHIFT … #define RHF_USE_EGR_BFR_MASK … #define RHF_USE_EGR_BFR_SMASK … #define RHF_EGR_INDEX_SHIFT … #define RHF_EGR_INDEX_MASK … #define RHF_EGR_INDEX_SMASK … #define RHF_DC_INFO_SHIFT … #define RHF_DC_INFO_MASK … #define RHF_DC_INFO_SMASK … #define RHF_RCV_SEQ_SHIFT … #define RHF_RCV_SEQ_MASK … #define RHF_RCV_SEQ_SMASK … #define RHF_EGR_OFFSET_SHIFT … #define RHF_EGR_OFFSET_MASK … #define RHF_EGR_OFFSET_SMASK … #define RHF_HDRQ_OFFSET_SHIFT … #define RHF_HDRQ_OFFSET_MASK … #define RHF_HDRQ_OFFSET_SMASK … #define RHF_K_HDR_LEN_ERR … #define RHF_DC_UNC_ERR … #define RHF_DC_ERR … #define RHF_RCV_TYPE_ERR_SHIFT … #define RHF_RCV_TYPE_ERR_MASK … #define RHF_RCV_TYPE_ERR_SMASK … #define RHF_TID_ERR … #define RHF_LEN_ERR … #define RHF_ECC_ERR … #define RHF_RESERVED … #define RHF_ICRC_ERR … #define RHF_ERROR_SMASK … /* RHF receive types */ #define RHF_RCV_TYPE_EXPECTED … #define RHF_RCV_TYPE_EAGER … #define RHF_RCV_TYPE_IB … #define RHF_RCV_TYPE_ERROR … #define RHF_RCV_TYPE_BYPASS … #define RHF_RCV_TYPE_INVALID5 … #define RHF_RCV_TYPE_INVALID6 … #define RHF_RCV_TYPE_INVALID7 … /* RHF receive type error - expected packet errors */ #define RHF_RTE_EXPECTED_FLOW_SEQ_ERR … #define RHF_RTE_EXPECTED_FLOW_GEN_ERR … /* RHF receive type error - eager packet errors */ #define RHF_RTE_EAGER_NO_ERR … /* RHF receive type error - IB packet errors */ #define RHF_RTE_IB_NO_ERR … /* RHF receive type error - error packet errors */ #define RHF_RTE_ERROR_NO_ERR … #define RHF_RTE_ERROR_OP_CODE_ERR … #define RHF_RTE_ERROR_KHDR_MIN_LEN_ERR … #define RHF_RTE_ERROR_KHDR_HCRC_ERR … #define RHF_RTE_ERROR_KHDR_KVER_ERR … #define RHF_RTE_ERROR_CONTEXT_ERR … #define RHF_RTE_ERROR_KHDR_TID_ERR … /* RHF receive type error - bypass packet errors */ #define RHF_RTE_BYPASS_NO_ERR … /* MAX RcvSEQ */ #define RHF_MAX_SEQ … /* IB - LRH header constants */ #define HFI1_LRH_GRH … #define HFI1_LRH_BTH … /* misc. */ #define SC15_PACKET … #define SIZE_OF_CRC … #define SIZE_OF_LT … #define MAX_16B_PADDING … #define LIM_MGMT_P_KEY … #define FULL_MGMT_P_KEY … #define DEFAULT_P_KEY … #define HFI1_PSM_IOC_BASE_SEQ … /* Number of BTH.PSN bits used for sequence number in expected rcvs */ #define HFI1_KDETH_BTH_SEQ_SHIFT … #define HFI1_KDETH_BTH_SEQ_MASK … static inline __u64 rhf_to_cpu(const __le32 *rbuf) { … } static inline u64 rhf_err_flags(u64 rhf) { … } static inline u32 rhf_rcv_type(u64 rhf) { … } static inline u32 rhf_rcv_type_err(u64 rhf) { … } /* return size is in bytes, not DWORDs */ static inline u32 rhf_pkt_len(u64 rhf) { … } static inline u32 rhf_egr_index(u64 rhf) { … } static inline u32 rhf_rcv_seq(u64 rhf) { … } /* returned offset is in DWORDS */ static inline u32 rhf_hdrq_offset(u64 rhf) { … } static inline u64 rhf_use_egr_bfr(u64 rhf) { … } static inline u64 rhf_dc_info(u64 rhf) { … } static inline u32 rhf_egr_buf_offset(u64 rhf) { … } #endif /* _COMMON_H */
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