netdev - [PATCH net 6/8] net: hns3: fix reset timeout under full functions and queues

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Date: Thu, 7 Mar 2024 09:01:13 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: <yisen.zhuang@...wei.com>, <salil.mehta@...wei.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>
CC: <shenjian15@...wei.com>, <wangjie125@...wei.com>,
	<liuyonglong@...wei.com>, <shaojijie@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH net 6/8] net: hns3: fix reset timeout under full functions and queues

From: Peiyang Wang <wangpeiyang1@...wei.com>

The cmdq reset command times out when all VFs are enabled and the queue is
full. The hardware processing time exceeds the timeout set by the driver.
In order to avoid the above extreme situations, the driver extends the
reset timeout to 1 second.

Signed-off-by: Peiyang Wang <wangpeiyang1@...wei.com>
Signed-off-by: Jijie Shao <shaojijie@...wei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c    | 2 +-
 .../net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
index d92ad6082d8e..652d71326231 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
@@ -351,7 +351,7 @@ static int hclge_comm_cmd_csq_done(struct hclge_comm_hw *hw)
 static u32 hclge_get_cmdq_tx_timeout(u16 opcode, u32 tx_timeout)
 {
 	static const struct hclge_cmdq_tx_timeout_map cmdq_tx_timeout_map[] = {
-		{HCLGE_OPC_CFG_RST_TRIGGER, HCLGE_COMM_CMDQ_TX_TIMEOUT_500MS},
+		{HCLGE_OPC_CFG_RST_TRIGGER, HCLGE_COMM_CMDQ_CFG_RST_TIMEOUT},
 	};
 	u32 i;
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
index 533c19d25e4f..552396518e08 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
@@ -55,7 +55,7 @@
 #define HCLGE_COMM_NIC_CMQ_DESC_NUM_S		3
 #define HCLGE_COMM_NIC_CMQ_DESC_NUM		1024
 #define HCLGE_COMM_CMDQ_TX_TIMEOUT_DEFAULT	30000
-#define HCLGE_COMM_CMDQ_TX_TIMEOUT_500MS	500000
+#define HCLGE_COMM_CMDQ_CFG_RST_TIMEOUT		1000000
 
 enum hclge_opcode_type {
 	/* Generic commands */
-- 
2.30.0