linux/drivers/infiniband/sw/rdmavt/rc.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright(c) 2016 Intel Corporation.
 */

#include <rdma/rdmavt_qp.h>
#include <rdma/ib_hdrs.h>

/*
 * Convert the AETH credit code into the number of credits.
 */
static const u16 credit_table[31] = …;

/**
 * rvt_compute_aeth - compute the AETH (syndrome + MSN)
 * @qp: the queue pair to compute the AETH for
 *
 * Returns the AETH.
 */
__be32 rvt_compute_aeth(struct rvt_qp *qp)
{ … }
EXPORT_SYMBOL(…);

/**
 * rvt_get_credit - flush the send work queue of a QP
 * @qp: the qp who's send work queue to flush
 * @aeth: the Acknowledge Extended Transport Header
 *
 * The QP s_lock should be held.
 */
void rvt_get_credit(struct rvt_qp *qp, u32 aeth)
{ … }
EXPORT_SYMBOL(…);

/**
 * rvt_restart_sge - rewind the sge state for a wqe
 * @ss: the sge state pointer
 * @wqe: the wqe to rewind
 * @len: the data length from the start of the wqe in bytes
 *
 * Returns the remaining data length.
 */
u32 rvt_restart_sge(struct rvt_sge_state *ss, struct rvt_swqe *wqe, u32 len)
{ … }
EXPORT_SYMBOL(…);