linux/drivers/infiniband/hw/hfi1/intr.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright(c) 2015, 2016 Intel Corporation.
 */

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/bitmap.h>

#include "hfi.h"
#include "common.h"
#include "sdma.h"

#define LINK_UP_DELAY …

static void set_mgmt_allowed(struct hfi1_pportdata *ppd)
{ … }

/*
 * Our neighbor has indicated that we are allowed to act as a fabric
 * manager, so place the full management partition key in the second
 * (0-based) pkey array position. Note that we should already have
 * the limited management partition key in array element 1, and also
 * that the port is not yet up when add_full_mgmt_pkey() is invoked.
 */
static void add_full_mgmt_pkey(struct hfi1_pportdata *ppd)
{ … }

/**
 * format_hwmsg - format a single hwerror message
 * @msg: message buffer
 * @msgl: length of message buffer
 * @hwmsg: message to add to message buffer
 */
static void format_hwmsg(char *msg, size_t msgl, const char *hwmsg)
{ … }

/**
 * hfi1_format_hwerrors - format hardware error messages for display
 * @hwerrs: hardware errors bit vector
 * @hwerrmsgs: hardware error descriptions
 * @nhwerrmsgs: number of hwerrmsgs
 * @msg: message buffer
 * @msgl: message buffer length
 */
void hfi1_format_hwerrors(u64 hwerrs, const struct hfi1_hwerror_msgs *hwerrmsgs,
			  size_t nhwerrmsgs, char *msg, size_t msgl)
{ … }

static void signal_ib_event(struct hfi1_pportdata *ppd, enum ib_event_type ev)
{ … }

/**
 * handle_linkup_change - finish linkup/down state changes
 * @dd: valid device
 * @linkup: link state information
 *
 * Handle a linkup or link down notification.
 * The HW needs time to finish its link up state change. Give it that chance.
 *
 * This is called outside an interrupt.
 *
 */
void handle_linkup_change(struct hfi1_devdata *dd, u32 linkup)
{ … }

/*
 * Handle receive or urgent interrupts for user contexts.  This means a user
 * process was waiting for a packet to arrive, and didn't want to poll.
 */
void handle_user_interrupt(struct hfi1_ctxtdata *rcd)
{ … }