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/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
/* Copyright (c) 2015 - 2021 Intel Corporation */
#ifndef IRDMA_VERBS_H
#define IRDMA_VERBS_H
#define IRDMA_MAX_SAVED_PHY_PGADDR 4
#define IRDMA_FLUSH_DELAY_MS 20
#define IRDMA_PKEY_TBL_SZ 1
#define IRDMA_DEFAULT_PKEY 0xFFFF
struct irdma_ucontext {
struct ib_ucontext ibucontext;
struct irdma_device *iwdev;
struct rdma_user_mmap_entry *db_mmap_entry;
struct list_head cq_reg_mem_list;
spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */
struct list_head qp_reg_mem_list;
spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */
int abi_ver;
bool legacy_mode;
};
struct irdma_pd {
struct ib_pd ibpd;
struct irdma_sc_pd sc_pd;
};
union irdma_sockaddr {
struct sockaddr_in saddr_in;
struct sockaddr_in6 saddr_in6;
};
struct irdma_av {
u8 macaddr[16];
struct rdma_ah_attr attrs;
union irdma_sockaddr sgid_addr;
union irdma_sockaddr dgid_addr;
u8 net_type;
};
struct irdma_ah {
struct ib_ah ibah;
struct irdma_sc_ah sc_ah;
struct irdma_pd *pd;
struct irdma_av av;
u8 sgid_index;
union ib_gid dgid;
struct hlist_node list;
refcount_t refcnt;
struct irdma_ah *parent_ah; /* AH from cached list */
};
struct irdma_hmc_pble {
union {
u32 idx;
dma_addr_t addr;
};
};
struct irdma_cq_mr {
struct irdma_hmc_pble cq_pbl;
dma_addr_t shadow;
bool split;
};
struct irdma_qp_mr {
struct irdma_hmc_pble sq_pbl;
struct irdma_hmc_pble rq_pbl;
dma_addr_t shadow;
struct page *sq_page;
};
struct irdma_cq_buf {
struct irdma_dma_mem kmem_buf;
struct irdma_cq_uk cq_uk;
struct irdma_hw *hw;
struct list_head list;
struct work_struct work;
};
struct irdma_pbl {
struct list_head list;
union {
struct irdma_qp_mr qp_mr;
struct irdma_cq_mr cq_mr;
};
bool pbl_allocated:1;
bool on_list:1;
u64 user_base;
struct irdma_pble_alloc pble_alloc;
struct irdma_mr *iwmr;
};
struct irdma_mr {
union {
struct ib_mr ibmr;
struct ib_mw ibmw;
};
struct ib_umem *region;
u16 type;
u32 page_cnt;
u64 page_size;
u32 npages;
u32 stag;
u64 len;
u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR];
struct irdma_pbl iwpbl;
};
struct irdma_cq {
struct ib_cq ibcq;
struct irdma_sc_cq sc_cq;
u16 cq_head;
u16 cq_size;
u16 cq_num;
bool user_mode;
atomic_t armed;
enum irdma_cmpl_notify last_notify;
u32 polled_cmpls;
u32 cq_mem_size;
struct irdma_dma_mem kmem;
struct irdma_dma_mem kmem_shadow;
spinlock_t lock; /* for poll cq */
struct irdma_pbl *iwpbl;
struct irdma_pbl *iwpbl_shadow;
struct list_head resize_list;
struct irdma_cq_poll_info cur_cqe;
struct list_head cmpl_generated;
};
struct irdma_cmpl_gen {
struct list_head list;
struct irdma_cq_poll_info cpi;
};
struct disconn_work {
struct work_struct work;
struct irdma_qp *iwqp;
};
struct iw_cm_id;
struct irdma_qp_kmode {
struct irdma_dma_mem dma_mem;
struct irdma_sq_uk_wr_trk_info *sq_wrid_mem;
u64 *rq_wrid_mem;
};
struct irdma_qp {
struct ib_qp ibqp;
struct irdma_sc_qp sc_qp;
struct irdma_device *iwdev;
struct irdma_cq *iwscq;
struct irdma_cq *iwrcq;
struct irdma_pd *iwpd;
struct rdma_user_mmap_entry *push_wqe_mmap_entry;
struct rdma_user_mmap_entry *push_db_mmap_entry;
struct irdma_qp_host_ctx_info ctx_info;
union {
struct irdma_iwarp_offload_info iwarp_info;
struct irdma_roce_offload_info roce_info;
};
union {
struct irdma_tcp_offload_info tcp_info;
struct irdma_udp_offload_info udp_info;
};
struct irdma_ah roce_ah;
struct list_head teardown_entry;
refcount_t refcnt;
struct iw_cm_id *cm_id;
struct irdma_cm_node *cm_node;
struct delayed_work dwork_flush;
struct ib_mr *lsmm_mr;
atomic_t hw_mod_qp_pend;
enum ib_qp_state ibqp_state;
u32 qp_mem_size;
u32 last_aeq;
int max_send_wr;
int max_recv_wr;
atomic_t close_timer_started;
spinlock_t lock; /* serialize posting WRs to SQ/RQ */
struct irdma_qp_context *iwqp_context;
void *pbl_vbase;
dma_addr_t pbl_pbase;
struct page *page;
u8 active_conn : 1;
u8 user_mode : 1;
u8 hte_added : 1;
u8 flush_issued : 1;
u8 sig_all : 1;
u8 pau_mode : 1;
u8 rsvd : 1;
u8 iwarp_state;
u16 term_sq_flush_code;
u16 term_rq_flush_code;
u8 hw_iwarp_state;
u8 hw_tcp_state;
struct irdma_qp_kmode kqp;
struct irdma_dma_mem host_ctx;
struct timer_list terminate_timer;
struct irdma_pbl *iwpbl;
struct irdma_dma_mem q2_ctx_mem;
struct irdma_dma_mem ietf_mem;
struct completion free_qp;
wait_queue_head_t waitq;
wait_queue_head_t mod_qp_waitq;
u8 rts_ae_rcvd;
};
enum irdma_mmap_flag {
IRDMA_MMAP_IO_NC,
IRDMA_MMAP_IO_WC,
};
struct irdma_user_mmap_entry {
struct rdma_user_mmap_entry rdma_entry;
u64 bar_offset;
u8 mmap_flag;
};
static inline u16 irdma_fw_major_ver(struct irdma_sc_dev *dev)
{
return (u16)FIELD_GET(IRDMA_FW_VER_MAJOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
}
static inline u16 irdma_fw_minor_ver(struct irdma_sc_dev *dev)
{
return (u16)FIELD_GET(IRDMA_FW_VER_MINOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]);
}
static inline void set_ib_wc_op_sq(struct irdma_cq_poll_info *cq_poll_info,
struct ib_wc *entry)
{
switch (cq_poll_info->op_type) {
case IRDMA_OP_TYPE_RDMA_WRITE:
case IRDMA_OP_TYPE_RDMA_WRITE_SOL:
entry->opcode = IB_WC_RDMA_WRITE;
break;
case IRDMA_OP_TYPE_RDMA_READ_INV_STAG:
case IRDMA_OP_TYPE_RDMA_READ:
entry->opcode = IB_WC_RDMA_READ;
break;
case IRDMA_OP_TYPE_SEND_SOL:
case IRDMA_OP_TYPE_SEND_SOL_INV:
case IRDMA_OP_TYPE_SEND_INV:
case IRDMA_OP_TYPE_SEND:
entry->opcode = IB_WC_SEND;
break;
case IRDMA_OP_TYPE_FAST_REG_NSMR:
entry->opcode = IB_WC_REG_MR;
break;
case IRDMA_OP_TYPE_INV_STAG:
entry->opcode = IB_WC_LOCAL_INV;
break;
default:
entry->status = IB_WC_GENERAL_ERR;
}
}
static inline void set_ib_wc_op_rq(struct irdma_cq_poll_info *cq_poll_info,
struct ib_wc *entry, bool send_imm_support)
{
/**
* iWARP does not support sendImm, so the presence of Imm data
* must be WriteImm.
*/
if (!send_imm_support) {
entry->opcode = cq_poll_info->imm_valid ?
IB_WC_RECV_RDMA_WITH_IMM :
IB_WC_RECV;
return;
}
switch (cq_poll_info->op_type) {
case IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE:
case IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE:
entry->opcode = IB_WC_RECV_RDMA_WITH_IMM;
break;
default:
entry->opcode = IB_WC_RECV;
}
}
void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4);
int irdma_ib_register_device(struct irdma_device *iwdev);
void irdma_ib_unregister_device(struct irdma_device *iwdev);
void irdma_ib_dealloc_device(struct ib_device *ibdev);
void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event);
void irdma_generate_flush_completions(struct irdma_qp *iwqp);
void irdma_remove_cmpls_list(struct irdma_cq *iwcq);
int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info);
#endif /* IRDMA_VERBS_H */