/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright(c) 2015 - 2018 Intel Corporation. */ #ifndef _QP_H #define _QP_H #include <linux/hash.h> #include <rdma/rdmavt_qp.h> #include "verbs.h" #include "sdma.h" #include "verbs_txreq.h" extern unsigned int hfi1_qp_table_size; extern const struct rvt_operation_params hfi1_post_parms[]; /* * Driver specific s_flags starting at bit 31 down to HFI1_S_MIN_BIT_MASK * * HFI1_S_AHG_VALID - ahg header valid on chip * HFI1_S_AHG_CLEAR - have send engine clear ahg state * HFI1_S_WAIT_PIO_DRAIN - qp waiting for PIOs to drain * HFI1_S_WAIT_TID_SPACE - a QP is waiting for TID resource * HFI1_S_WAIT_TID_RESP - waiting for a TID RDMA WRITE response * HFI1_S_WAIT_HALT - halt the first leg send engine * HFI1_S_MIN_BIT_MASK - the lowest bit that can be used by hfi1 */ #define HFI1_S_AHG_VALID … #define HFI1_S_AHG_CLEAR … #define HFI1_S_WAIT_PIO_DRAIN … #define HFI1_S_WAIT_TID_SPACE … #define HFI1_S_WAIT_TID_RESP … #define HFI1_S_WAIT_HALT … #define HFI1_S_MIN_BIT_MASK … /* * overload wait defines */ #define HFI1_S_ANY_WAIT_IO … #define HFI1_S_ANY_WAIT … #define HFI1_S_ANY_TID_WAIT_SEND … /* * Send if not busy or waiting for I/O and either * a RC response is pending or we can process send work requests. */ static inline int hfi1_send_ok(struct rvt_qp *qp) { … } /* * free_ahg - clear ahg from QP */ static inline void clear_ahg(struct rvt_qp *qp) { … } /** * hfi1_qp_wakeup - wake up on the indicated event * @qp: the QP * @flag: flag the qp on which the qp is stalled */ void hfi1_qp_wakeup(struct rvt_qp *qp, u32 flag); struct sdma_engine *qp_to_sdma_engine(struct rvt_qp *qp, u8 sc5); struct send_context *qp_to_send_context(struct rvt_qp *qp, u8 sc5); void qp_iter_print(struct seq_file *s, struct rvt_qp_iter *iter); bool _hfi1_schedule_send(struct rvt_qp *qp); bool hfi1_schedule_send(struct rvt_qp *qp); void hfi1_migrate_qp(struct rvt_qp *qp); /* * Functions provided by hfi1 driver for rdmavt to use */ void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp); void qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp); unsigned free_all_qps(struct rvt_dev_info *rdi); void notify_qp_reset(struct rvt_qp *qp); int get_pmtu_from_attr(struct rvt_dev_info *rdi, struct rvt_qp *qp, struct ib_qp_attr *attr); void flush_qp_waiters(struct rvt_qp *qp); void notify_error_qp(struct rvt_qp *qp); void stop_send_queue(struct rvt_qp *qp); void quiesce_qp(struct rvt_qp *qp); u32 mtu_from_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, u32 pmtu); int mtu_to_path_mtu(u32 mtu); void hfi1_error_port_qps(struct hfi1_ibport *ibp, u8 sl); void hfi1_qp_unbusy(struct rvt_qp *qp, struct iowait_work *wait); #endif /* _QP_H */
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