From: Huazhong Tan <tanhuazhong@huawei.com>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
<linuxarm@huawei.com>
Subject: [Patch net-next 07/12] net: hns3: ignore new coming low-level reset while doing high-level reset
Date: Wed, 7 Nov 2018 12:06:13 +0800 [thread overview]
Message-ID: <1541563578-28973-8-git-send-email-tanhuazhong@huawei.com> (raw)
In-Reply-To: <1541563578-28973-1-git-send-email-tanhuazhong@huawei.com>
When processing a higher level reset, the pending lower level reset
does not have to be processed anymore, because the higher level
reset is the superset of the lower level reset.
Therefore, when processing an higher level reset, the request of
lower level reset needs to be cleared.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 27 +++++++++++++---------
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index b784db0..62022d55 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2414,20 +2414,25 @@ static enum hnae3_reset_type hclge_get_reset_level(struct hclge_dev *hdev,
enum hnae3_reset_type rst_level = HNAE3_NONE_RESET;
/* return the highest priority reset level amongst all */
- if (test_bit(HNAE3_GLOBAL_RESET, addr))
+ if (test_bit(HNAE3_IMP_RESET, addr)) {
+ rst_level = HNAE3_IMP_RESET;
+ clear_bit(HNAE3_IMP_RESET, addr);
+ clear_bit(HNAE3_GLOBAL_RESET, addr);
+ clear_bit(HNAE3_CORE_RESET, addr);
+ clear_bit(HNAE3_FUNC_RESET, addr);
+ } else if (test_bit(HNAE3_GLOBAL_RESET, addr)) {
rst_level = HNAE3_GLOBAL_RESET;
- else if (test_bit(HNAE3_CORE_RESET, addr))
+ clear_bit(HNAE3_GLOBAL_RESET, addr);
+ clear_bit(HNAE3_CORE_RESET, addr);
+ clear_bit(HNAE3_FUNC_RESET, addr);
+ } else if (test_bit(HNAE3_CORE_RESET, addr)) {
rst_level = HNAE3_CORE_RESET;
- else if (test_bit(HNAE3_IMP_RESET, addr))
- rst_level = HNAE3_IMP_RESET;
- else if (test_bit(HNAE3_FUNC_RESET, addr))
+ clear_bit(HNAE3_CORE_RESET, addr);
+ clear_bit(HNAE3_FUNC_RESET, addr);
+ } else if (test_bit(HNAE3_FUNC_RESET, addr)) {
rst_level = HNAE3_FUNC_RESET;
-
- /* now, clear all other resets */
- clear_bit(HNAE3_GLOBAL_RESET, addr);
- clear_bit(HNAE3_CORE_RESET, addr);
- clear_bit(HNAE3_IMP_RESET, addr);
- clear_bit(HNAE3_FUNC_RESET, addr);
+ clear_bit(HNAE3_FUNC_RESET, addr);
+ }
return rst_level;
}
--
2.7.4
next prev parent reply other threads:[~2018-11-07 4:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 4:06 [Patch net-next 00/12] provide new interfaces & bugfixes & code optimization Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 01/12] net: hns3: use HNS3_NIC_STATE_INITED to indicate the initialization state of enet Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 02/12] net: hns3: add set_default_reset_request in the hnae3_ae_ops Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 03/12] net: hns3: provide some interface & information for the client Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 04/12] net: hns3: adjust the location of clearing the table when doing reset Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 05/12] net: hns3: enable/disable ring in the enet while doing UP/DOWN Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 06/12] net: hns3: use HNS3_NIC_STATE_RESETTING to indicate resetting Huazhong Tan
2018-11-07 4:06 ` Huazhong Tan [this message]
2018-11-07 4:06 ` [Patch net-next 08/12] net: hns3: move some reset information from hnae3_handle into hclge_dev/hclgevf_dev Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 09/12] net: hns3: adjust the process of PF reset Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 10/12] net: hns3: call roce's reset notify callback when resetting Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 11/12] net: hns3: add error handler for hclge_reset() Huazhong Tan
2018-11-07 4:06 ` [Patch net-next 12/12] net: hns3: fix for cmd queue memory not freed problem during reset Huazhong Tan
2018-11-07 19:42 ` [Patch net-next 00/12] provide new interfaces & bugfixes & code optimization David Miller
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