From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/drivers/infiniband/sw/rxe/rxe_task.c | 60 +++++++++++++++++++-----------------------------------------
1 files changed, 19 insertions(+), 41 deletions(-)
diff --git a/kernel/drivers/infiniband/sw/rxe/rxe_task.c b/kernel/drivers/infiniband/sw/rxe/rxe_task.c
index 08f05ac..5aa6994 100644
--- a/kernel/drivers/infiniband/sw/rxe/rxe_task.c
+++ b/kernel/drivers/infiniband/sw/rxe/rxe_task.c
@@ -1,41 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
* Copyright (c) 2015 System Fabric Works, Inc. 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.
*/
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/hardirq.h>
-#include "rxe_task.h"
+#include "rxe.h"
int __rxe_do_task(struct rxe_task *task)
@@ -55,12 +28,13 @@
* a second caller finds the task already running
* but looks just after the last call to func
*/
-void rxe_do_task(unsigned long data)
+void rxe_do_task(struct tasklet_struct *t)
{
int cont;
int ret;
unsigned long flags;
- struct rxe_task *task = (struct rxe_task *)data;
+ struct rxe_task *task = from_tasklet(task, t, tasklet);
+ unsigned int iterations = RXE_MAX_ITERATIONS;
spin_lock_irqsave(&task->state_lock, flags);
switch (task->state) {
@@ -71,7 +45,7 @@
case TASK_STATE_BUSY:
task->state = TASK_STATE_ARMED;
- /* fall through */
+ fallthrough;
case TASK_STATE_ARMED:
spin_unlock_irqrestore(&task->state_lock, flags);
return;
@@ -89,13 +63,20 @@
spin_lock_irqsave(&task->state_lock, flags);
switch (task->state) {
case TASK_STATE_BUSY:
- if (ret)
+ if (ret) {
task->state = TASK_STATE_START;
- else
+ } else if (iterations--) {
cont = 1;
+ } else {
+ /* reschedule the tasklet and exit
+ * the loop to give up the cpu
+ */
+ tasklet_schedule(&task->tasklet);
+ task->state = TASK_STATE_START;
+ }
break;
- /* soneone tried to run the task since the last time we called
+ /* someone tried to run the task since the last time we called
* func, so we will call one more time regardless of the
* return value
*/
@@ -114,16 +95,13 @@
task->ret = ret;
}
-int rxe_init_task(void *obj, struct rxe_task *task,
- void *arg, int (*func)(void *), char *name)
+int rxe_init_task(struct rxe_task *task, void *arg, int (*func)(void *))
{
- task->obj = obj;
task->arg = arg;
task->func = func;
- snprintf(task->name, sizeof(task->name), "%s", name);
task->destroyed = false;
- tasklet_init(&task->tasklet, rxe_do_task, (unsigned long)task);
+ tasklet_setup(&task->tasklet, rxe_do_task);
task->state = TASK_STATE_START;
spin_lock_init(&task->state_lock);
@@ -159,7 +137,7 @@
if (sched)
tasklet_schedule(&task->tasklet);
else
- rxe_do_task((unsigned long)task);
+ rxe_do_task(&task->tasklet);
}
void rxe_disable_task(struct rxe_task *task)
--
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