diff options
Diffstat (limited to 'kernel/include/linux/mlx5/qp.h')
| -rw-r--r-- | kernel/include/linux/mlx5/qp.h | 663 |
1 files changed, 663 insertions, 0 deletions
diff --git a/kernel/include/linux/mlx5/qp.h b/kernel/include/linux/mlx5/qp.h new file mode 100644 index 000000000..310b5f7fd --- /dev/null +++ b/kernel/include/linux/mlx5/qp.h @@ -0,0 +1,663 @@ +/* + * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_QP_H +#define MLX5_QP_H + +#include <linux/mlx5/device.h> +#include <linux/mlx5/driver.h> + +#define MLX5_INVALID_LKEY 0x100 +#define MLX5_SIG_WQE_SIZE (MLX5_SEND_WQE_BB * 5) +#define MLX5_DIF_SIZE 8 +#define MLX5_STRIDE_BLOCK_OP 0x400 +#define MLX5_CPY_GRD_MASK 0xc0 +#define MLX5_CPY_APP_MASK 0x30 +#define MLX5_CPY_REF_MASK 0x0f +#define MLX5_BSF_INC_REFTAG (1 << 6) +#define MLX5_BSF_INL_VALID (1 << 15) +#define MLX5_BSF_REFRESH_DIF (1 << 14) +#define MLX5_BSF_REPEAT_BLOCK (1 << 7) +#define MLX5_BSF_APPTAG_ESCAPE 0x1 +#define MLX5_BSF_APPREF_ESCAPE 0x2 + +#define MLX5_QPN_BITS 24 +#define MLX5_QPN_MASK ((1 << MLX5_QPN_BITS) - 1) + +enum mlx5_qp_optpar { + MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0, + MLX5_QP_OPTPAR_RRE = 1 << 1, + MLX5_QP_OPTPAR_RAE = 1 << 2, + MLX5_QP_OPTPAR_RWE = 1 << 3, + MLX5_QP_OPTPAR_PKEY_INDEX = 1 << 4, + MLX5_QP_OPTPAR_Q_KEY = 1 << 5, + MLX5_QP_OPTPAR_RNR_TIMEOUT = 1 << 6, + MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7, + MLX5_QP_OPTPAR_SRA_MAX = 1 << 8, + MLX5_QP_OPTPAR_RRA_MAX = 1 << 9, + MLX5_QP_OPTPAR_PM_STATE = 1 << 10, + MLX5_QP_OPTPAR_RETRY_COUNT = 1 << 12, + MLX5_QP_OPTPAR_RNR_RETRY = 1 << 13, + MLX5_QP_OPTPAR_ACK_TIMEOUT = 1 << 14, + MLX5_QP_OPTPAR_PRI_PORT = 1 << 16, + MLX5_QP_OPTPAR_SRQN = 1 << 18, + MLX5_QP_OPTPAR_CQN_RCV = 1 << 19, + MLX5_QP_OPTPAR_DC_HS = 1 << 20, + MLX5_QP_OPTPAR_DC_KEY = 1 << 21, +}; + +enum mlx5_qp_state { + MLX5_QP_STATE_RST = 0, + MLX5_QP_STATE_INIT = 1, + MLX5_QP_STATE_RTR = 2, + MLX5_QP_STATE_RTS = 3, + MLX5_QP_STATE_SQER = 4, + MLX5_QP_STATE_SQD = 5, + MLX5_QP_STATE_ERR = 6, + MLX5_QP_STATE_SQ_DRAINING = 7, + MLX5_QP_STATE_SUSPENDED = 9, + MLX5_QP_NUM_STATE +}; + +enum { + MLX5_QP_ST_RC = 0x0, + MLX5_QP_ST_UC = 0x1, + MLX5_QP_ST_UD = 0x2, + MLX5_QP_ST_XRC = 0x3, + MLX5_QP_ST_MLX = 0x4, + MLX5_QP_ST_DCI = 0x5, + MLX5_QP_ST_DCT = 0x6, + MLX5_QP_ST_QP0 = 0x7, + MLX5_QP_ST_QP1 = 0x8, + MLX5_QP_ST_RAW_ETHERTYPE = 0x9, + MLX5_QP_ST_RAW_IPV6 = 0xa, + MLX5_QP_ST_SNIFFER = 0xb, + MLX5_QP_ST_SYNC_UMR = 0xe, + MLX5_QP_ST_PTP_1588 = 0xd, + MLX5_QP_ST_REG_UMR = 0xc, + MLX5_QP_ST_MAX +}; + +enum { + MLX5_QP_PM_MIGRATED = 0x3, + MLX5_QP_PM_ARMED = 0x0, + MLX5_QP_PM_REARM = 0x1 +}; + +enum { + MLX5_NON_ZERO_RQ = 0 << 24, + MLX5_SRQ_RQ = 1 << 24, + MLX5_CRQ_RQ = 2 << 24, + MLX5_ZERO_LEN_RQ = 3 << 24 +}; + +enum { + /* params1 */ + MLX5_QP_BIT_SRE = 1 << 15, + MLX5_QP_BIT_SWE = 1 << 14, + MLX5_QP_BIT_SAE = 1 << 13, + /* params2 */ + MLX5_QP_BIT_RRE = 1 << 15, + MLX5_QP_BIT_RWE = 1 << 14, + MLX5_QP_BIT_RAE = 1 << 13, + MLX5_QP_BIT_RIC = 1 << 4, +}; + +enum { + MLX5_WQE_CTRL_CQ_UPDATE = 2 << 2, + MLX5_WQE_CTRL_SOLICITED = 1 << 1, +}; + +enum { + MLX5_SEND_WQE_BB = 64, +}; + +enum { + MLX5_WQE_FMR_PERM_LOCAL_READ = 1 << 27, + MLX5_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28, + MLX5_WQE_FMR_PERM_REMOTE_READ = 1 << 29, + MLX5_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30, + MLX5_WQE_FMR_PERM_ATOMIC = 1 << 31 +}; + +enum { + MLX5_FENCE_MODE_NONE = 0 << 5, + MLX5_FENCE_MODE_INITIATOR_SMALL = 1 << 5, + MLX5_FENCE_MODE_STRONG_ORDERING = 3 << 5, + MLX5_FENCE_MODE_SMALL_AND_FENCE = 4 << 5, +}; + +enum { + MLX5_QP_LAT_SENSITIVE = 1 << 28, + MLX5_QP_BLOCK_MCAST = 1 << 30, + MLX5_QP_ENABLE_SIG = 1 << 31, +}; + +enum { + MLX5_RCV_DBR = 0, + MLX5_SND_DBR = 1, +}; + +enum { + MLX5_FLAGS_INLINE = 1<<7, + MLX5_FLAGS_CHECK_FREE = 1<<5, +}; + +struct mlx5_wqe_fmr_seg { + __be32 flags; + __be32 mem_key; + __be64 buf_list; + __be64 start_addr; + __be64 reg_len; + __be32 offset; + __be32 page_size; + u32 reserved[2]; +}; + +struct mlx5_wqe_ctrl_seg { + __be32 opmod_idx_opcode; + __be32 qpn_ds; + u8 signature; + u8 rsvd[2]; + u8 fm_ce_se; + __be32 imm; +}; + +#define MLX5_WQE_CTRL_DS_MASK 0x3f +#define MLX5_WQE_CTRL_QPN_MASK 0xffffff00 +#define MLX5_WQE_CTRL_QPN_SHIFT 8 +#define MLX5_WQE_DS_UNITS 16 +#define MLX5_WQE_CTRL_OPCODE_MASK 0xff +#define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00 +#define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8 + +struct mlx5_wqe_xrc_seg { + __be32 xrc_srqn; + u8 rsvd[12]; +}; + +struct mlx5_wqe_masked_atomic_seg { + __be64 swap_add; + __be64 compare; + __be64 swap_add_mask; + __be64 compare_mask; +}; + +struct mlx5_av { + union { + struct { + __be32 qkey; + __be32 reserved; + } qkey; + __be64 dc_key; + } key; + __be32 dqp_dct; + u8 stat_rate_sl; + u8 fl_mlid; + __be16 rlid; + u8 reserved0[10]; + u8 tclass; + u8 hop_limit; + __be32 grh_gid_fl; + u8 rgid[16]; +}; + +struct mlx5_wqe_datagram_seg { + struct mlx5_av av; +}; + +struct mlx5_wqe_raddr_seg { + __be64 raddr; + __be32 rkey; + u32 reserved; +}; + +struct mlx5_wqe_atomic_seg { + __be64 swap_add; + __be64 compare; +}; + +struct mlx5_wqe_data_seg { + __be32 byte_count; + __be32 lkey; + __be64 addr; +}; + +struct mlx5_wqe_umr_ctrl_seg { + u8 flags; + u8 rsvd0[3]; + __be16 klm_octowords; + __be16 bsf_octowords; + __be64 mkey_mask; + u8 rsvd1[32]; +}; + +struct mlx5_seg_set_psv { + __be32 psv_num; + __be16 syndrome; + __be16 status; + __be32 transient_sig; + __be32 ref_tag; +}; + +struct mlx5_seg_get_psv { + u8 rsvd[19]; + u8 num_psv; + __be32 l_key; + __be64 va; + __be32 psv_index[4]; +}; + +struct mlx5_seg_check_psv { + u8 rsvd0[2]; + __be16 err_coalescing_op; + u8 rsvd1[2]; + __be16 xport_err_op; + u8 rsvd2[2]; + __be16 xport_err_mask; + u8 rsvd3[7]; + u8 num_psv; + __be32 l_key; + __be64 va; + __be32 psv_index[4]; +}; + +struct mlx5_rwqe_sig { + u8 rsvd0[4]; + u8 signature; + u8 rsvd1[11]; +}; + +struct mlx5_wqe_signature_seg { + u8 rsvd0[4]; + u8 signature; + u8 rsvd1[11]; +}; + +#define MLX5_WQE_INLINE_SEG_BYTE_COUNT_MASK 0x3ff + +struct mlx5_wqe_inline_seg { + __be32 byte_count; +}; + +enum mlx5_sig_type { + MLX5_DIF_CRC = 0x1, + MLX5_DIF_IPCS = 0x2, +}; + +struct mlx5_bsf_inl { + __be16 vld_refresh; + __be16 dif_apptag; + __be32 dif_reftag; + u8 sig_type; + u8 rp_inv_seed; + u8 rsvd[3]; + u8 dif_inc_ref_guard_check; + __be16 dif_app_bitmask_check; +}; + +struct mlx5_bsf { + struct mlx5_bsf_basic { + u8 bsf_size_sbs; + u8 check_byte_mask; + union { + u8 copy_byte_mask; + u8 bs_selector; + u8 rsvd_wflags; + } wire; + union { + u8 bs_selector; + u8 rsvd_mflags; + } mem; + __be32 raw_data_size; + __be32 w_bfs_psv; + __be32 m_bfs_psv; + } basic; + struct mlx5_bsf_ext { + __be32 t_init_gen_pro_size; + __be32 rsvd_epi_size; + __be32 w_tfs_psv; + __be32 m_tfs_psv; + } ext; + struct mlx5_bsf_inl w_inl; + struct mlx5_bsf_inl m_inl; +}; + +struct mlx5_klm { + __be32 bcount; + __be32 key; + __be64 va; +}; + +struct mlx5_stride_block_entry { + __be16 stride; + __be16 bcount; + __be32 key; + __be64 va; +}; + +struct mlx5_stride_block_ctrl_seg { + __be32 bcount_per_cycle; + __be32 op; + __be32 repeat_count; + u16 rsvd; + __be16 num_entries; +}; + +enum mlx5_pagefault_flags { + MLX5_PFAULT_REQUESTOR = 1 << 0, + MLX5_PFAULT_WRITE = 1 << 1, + MLX5_PFAULT_RDMA = 1 << 2, +}; + +/* Contains the details of a pagefault. */ +struct mlx5_pagefault { + u32 bytes_committed; + u8 event_subtype; + enum mlx5_pagefault_flags flags; + union { + /* Initiator or send message responder pagefault details. */ + struct { + /* Received packet size, only valid for responders. */ + u32 packet_size; + /* + * WQE index. Refers to either the send queue or + * receive queue, according to event_subtype. + */ + u16 wqe_index; + } wqe; + /* RDMA responder pagefault details */ + struct { + u32 r_key; + /* + * Received packet size, minimal size page fault + * resolution required for forward progress. + */ + u32 packet_size; + u32 rdma_op_len; + u64 rdma_va; + } rdma; + }; +}; + +struct mlx5_core_qp { + struct mlx5_core_rsc_common common; /* must be first */ + void (*event) (struct mlx5_core_qp *, int); + void (*pfault_handler)(struct mlx5_core_qp *, struct mlx5_pagefault *); + int qpn; + struct mlx5_rsc_debug *dbg; + int pid; +}; + +struct mlx5_qp_path { + u8 fl; + u8 rsvd3; + u8 free_ar; + u8 pkey_index; + u8 rsvd0; + u8 grh_mlid; + __be16 rlid; + u8 ackto_lt; + u8 mgid_index; + u8 static_rate; + u8 hop_limit; + __be32 tclass_flowlabel; + u8 rgid[16]; + u8 rsvd1[4]; + u8 sl; + u8 port; + u8 rsvd2[6]; +}; + +struct mlx5_qp_context { + __be32 flags; + __be32 flags_pd; + u8 mtu_msgmax; + u8 rq_size_stride; + __be16 sq_crq_size; + __be32 qp_counter_set_usr_page; + __be32 wire_qpn; + __be32 log_pg_sz_remote_qpn; + struct mlx5_qp_path pri_path; + struct mlx5_qp_path alt_path; + __be32 params1; + u8 reserved2[4]; + __be32 next_send_psn; + __be32 cqn_send; + u8 reserved3[8]; + __be32 last_acked_psn; + __be32 ssn; + __be32 params2; + __be32 rnr_nextrecvpsn; + __be32 xrcd; + __be32 cqn_recv; + __be64 db_rec_addr; + __be32 qkey; + __be32 rq_type_srqn; + __be32 rmsn; + __be16 hw_sq_wqe_counter; + __be16 sw_sq_wqe_counter; + __be16 hw_rcyclic_byte_counter; + __be16 hw_rq_counter; + __be16 sw_rcyclic_byte_counter; + __be16 sw_rq_counter; + u8 rsvd0[5]; + u8 cgs; + u8 cs_req; + u8 cs_res; + __be64 dc_access_key; + u8 rsvd1[24]; +}; + +struct mlx5_create_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 input_qpn; + u8 rsvd0[4]; + __be32 opt_param_mask; + u8 rsvd1[4]; + struct mlx5_qp_context ctx; + u8 rsvd3[16]; + __be64 pas[0]; +}; + +struct mlx5_create_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 qpn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + +struct mlx5_modify_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd1[4]; + __be32 optparam; + u8 rsvd0[4]; + struct mlx5_qp_context ctx; +}; + +struct mlx5_modify_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + +struct mlx5_query_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd[4]; +}; + +struct mlx5_query_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd1[8]; + __be32 optparam; + u8 rsvd0[4]; + struct mlx5_qp_context ctx; + u8 rsvd2[16]; + __be64 pas[0]; +}; + +struct mlx5_conf_sqp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd[3]; + u8 type; +}; + +struct mlx5_conf_sqp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_alloc_xrcd_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_alloc_xrcd_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 xrcdn; + u8 rsvd[4]; +}; + +struct mlx5_dealloc_xrcd_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 xrcdn; + u8 rsvd[4]; +}; + +struct mlx5_dealloc_xrcd_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +static inline struct mlx5_core_qp *__mlx5_qp_lookup(struct mlx5_core_dev *dev, u32 qpn) +{ + return radix_tree_lookup(&dev->priv.qp_table.tree, qpn); +} + +static inline struct mlx5_core_mr *__mlx5_mr_lookup(struct mlx5_core_dev *dev, u32 key) +{ + return radix_tree_lookup(&dev->priv.mr_table.tree, key); +} + +struct mlx5_page_fault_resume_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 flags_qpn; + u8 reserved[4]; +}; + +struct mlx5_page_fault_resume_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +int mlx5_core_create_qp(struct mlx5_core_dev *dev, + struct mlx5_core_qp *qp, + struct mlx5_create_qp_mbox_in *in, + int inlen); +int mlx5_core_qp_modify(struct mlx5_core_dev *dev, enum mlx5_qp_state cur_state, + enum mlx5_qp_state new_state, + struct mlx5_modify_qp_mbox_in *in, int sqd_event, + struct mlx5_core_qp *qp); +int mlx5_core_destroy_qp(struct mlx5_core_dev *dev, + struct mlx5_core_qp *qp); +int mlx5_core_qp_query(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, + struct mlx5_query_qp_mbox_out *out, int outlen); + +int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn); +int mlx5_core_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn); +void mlx5_init_qp_table(struct mlx5_core_dev *dev); +void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev); +int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp); +void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp); +#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING +int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 qpn, + u8 context, int error); +#endif + +static inline const char *mlx5_qp_type_str(int type) +{ + switch (type) { + case MLX5_QP_ST_RC: return "RC"; + case MLX5_QP_ST_UC: return "C"; + case MLX5_QP_ST_UD: return "UD"; + case MLX5_QP_ST_XRC: return "XRC"; + case MLX5_QP_ST_MLX: return "MLX"; + case MLX5_QP_ST_QP0: return "QP0"; + case MLX5_QP_ST_QP1: return "QP1"; + case MLX5_QP_ST_RAW_ETHERTYPE: return "RAW_ETHERTYPE"; + case MLX5_QP_ST_RAW_IPV6: return "RAW_IPV6"; + case MLX5_QP_ST_SNIFFER: return "SNIFFER"; + case MLX5_QP_ST_SYNC_UMR: return "SYNC_UMR"; + case MLX5_QP_ST_PTP_1588: return "PTP_1588"; + case MLX5_QP_ST_REG_UMR: return "REG_UMR"; + default: return "Invalid transport type"; + } +} + +static inline const char *mlx5_qp_state_str(int state) +{ + switch (state) { + case MLX5_QP_STATE_RST: + return "RST"; + case MLX5_QP_STATE_INIT: + return "INIT"; + case MLX5_QP_STATE_RTR: + return "RTR"; + case MLX5_QP_STATE_RTS: + return "RTS"; + case MLX5_QP_STATE_SQER: + return "SQER"; + case MLX5_QP_STATE_SQD: + return "SQD"; + case MLX5_QP_STATE_ERR: + return "ERR"; + case MLX5_QP_STATE_SQ_DRAINING: + return "SQ_DRAINING"; + case MLX5_QP_STATE_SUSPENDED: + return "SUSPENDED"; + default: return "Invalid QP state"; + } +} + +#endif /* MLX5_QP_H */ |