Revision 0472e95ffeac8e61259eec17ab61608c6b35599d authored by Jian Shen on 29 September 2021, 09:35:52 UTC, committed by David S. Miller on 29 September 2021, 10:03:54 UTC
HCLGE_FLAG_MQPRIO_ENABLE is supposed to set when enable multiple TCs with tc mqprio, and HCLGE_FLAG_DCB_ENABLE is supposed to set when enable multiple TCs with ets. But the driver mixed the flags when updating the tm configuration. Furtherly, PFC should be available when HCLGE_FLAG_MQPRIO_ENABLE too, so remove the unnecessary limitation. Fixes: 5a5c90917467 ("net: hns3: add support for tc mqprio offload") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent d82650b
regset.c
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/regset.h>
static int __regset_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int size,
void **data)
{
void *p = *data, *to_free = NULL;
int res;
if (!regset->regset_get)
return -EOPNOTSUPP;
if (size > regset->n * regset->size)
size = regset->n * regset->size;
if (!p) {
to_free = p = kzalloc(size, GFP_KERNEL);
if (!p)
return -ENOMEM;
}
res = regset->regset_get(target, regset,
(struct membuf){.p = p, .left = size});
if (res < 0) {
kfree(to_free);
return res;
}
*data = p;
return size - res;
}
int regset_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int size,
void *data)
{
return __regset_get(target, regset, size, &data);
}
EXPORT_SYMBOL(regset_get);
int regset_get_alloc(struct task_struct *target,
const struct user_regset *regset,
unsigned int size,
void **data)
{
*data = NULL;
return __regset_get(target, regset, size, data);
}
EXPORT_SYMBOL(regset_get_alloc);
/**
* copy_regset_to_user - fetch a thread's user_regset data into user memory
* @target: thread to be examined
* @view: &struct user_regset_view describing user thread machine state
* @setno: index in @view->regsets
* @offset: offset into the regset data, in bytes
* @size: amount of data to copy, in bytes
* @data: user-mode pointer to copy into
*/
int copy_regset_to_user(struct task_struct *target,
const struct user_regset_view *view,
unsigned int setno,
unsigned int offset, unsigned int size,
void __user *data)
{
const struct user_regset *regset = &view->regsets[setno];
void *buf;
int ret;
ret = regset_get_alloc(target, regset, size, &buf);
if (ret > 0)
ret = copy_to_user(data, buf, ret) ? -EFAULT : 0;
kfree(buf);
return ret;
}
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