linux-kernel - [PATCH V5 net-next 3/8] net: hibmcge: Add irq

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Message-ID: <20241206111629.3521865-4-shaojijie@huawei.com>
Date: Fri, 6 Dec 2024 19:16:24 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <andrew+netdev@...n.ch>, <horms@...nel.org>,
	<gregkh@...uxfoundation.org>
CC: <shenjian15@...wei.com>, <wangpeiyang1@...wei.com>,
	<liuyonglong@...wei.com>, <chenhao418@...wei.com>, <sudongming1@...wei.com>,
	<xujunsheng@...wei.com>, <shiyongbang@...wei.com>, <libaihan@...wei.com>,
	<jonathan.cameron@...wei.com>, <shameerali.kolothum.thodi@...wei.com>,
	<salil.mehta@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <shaojijie@...wei.com>, <hkelam@...vell.com>
Subject: [PATCH V5 net-next 3/8] net: hibmcge: Add irq_info file to debugfs

the driver requested three interrupts: "tx", "rx", "err".
The err interrupt is a summary interrupt. We distinguish
different errors based on the status register and mask.

With "cat /proc/interrupts | grep hibmcge",
we can't distinguish the detailed cause of the error,
so we added this file to debugfs.

the following effects are achieved:
[root@...alhost sjj]# cat /sys/kernel/debug/hibmcge/0000\:83\:00.1/irq_info
RX                  : enabled: true , logged: false, count: 0
TX                  : enabled: true , logged: false, count: 0
MAC_MII_FIFO_ERR    : enabled: false, logged: true , count: 0
MAC_PCS_RX_FIFO_ERR : enabled: false, logged: true , count: 0
MAC_PCS_TX_FIFO_ERR : enabled: false, logged: true , count: 0
MAC_APP_RX_FIFO_ERR : enabled: false, logged: true , count: 0
MAC_APP_TX_FIFO_ERR : enabled: false, logged: true , count: 0
SRAM_PARITY_ERR     : enabled: true , logged: true , count: 0
TX_AHB_ERR          : enabled: true , logged: true , count: 0
RX_BUF_AVL          : enabled: true , logged: false, count: 0
REL_BUF_ERR         : enabled: true , logged: true , count: 0
TXCFG_AVL           : enabled: true , logged: false, count: 0
TX_DROP             : enabled: true , logged: false, count: 0
RX_DROP             : enabled: true , logged: false, count: 0
RX_AHB_ERR          : enabled: true , logged: true , count: 0
MAC_FIFO_ERR        : enabled: true , logged: false, count: 0
RBREQ_ERR           : enabled: true , logged: false, count: 0
WE_ERR              : enabled: true , logged: false, count: 0

The irq framework of hibmcge driver also includes tx/rx interrupts.
Therefore, TX and RX are not moved separately form this file.

Signed-off-by: Jijie Shao <shaojijie@...wei.com>
Reviewed-by: Simon Horman <horms@...nel.org>
---
 .../ethernet/hisilicon/hibmcge/hbg_debugfs.c  | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_debugfs.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_debugfs.c
index d445c0c1035c..af550f8258b2 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_debugfs.c
@@ -56,9 +56,31 @@ static int hbg_dbg_rx_ring(struct seq_file *s, void *unused)
 	return 0;
 }
 
+static int hbg_dbg_irq_info(struct seq_file *s, void *unused)
+{
+	struct net_device *netdev = dev_get_drvdata(s->private);
+	struct hbg_priv *priv = netdev_priv(netdev);
+	struct hbg_irq_info *info;
+	u32 i;
+
+	for (i = 0; i < priv->vectors.info_array_len; i++) {
+		info = &priv->vectors.info_array[i];
+		seq_printf(s,
+			   "%-20s: enabled: %-5s, logged: %-5s, count: %llu\n",
+			   info->name,
+			   hbg_get_bool_str(hbg_hw_irq_is_enabled(priv,
+								  info->mask)),
+			   hbg_get_bool_str(info->need_print),
+			   info->count);
+	}
+
+	return 0;
+}
+
 static const struct hbg_dbg_info hbg_dbg_infos[] = {
 	{ "tx_ring", hbg_dbg_tx_ring },
 	{ "rx_ring", hbg_dbg_rx_ring },
+	{ "irq_info", hbg_dbg_irq_info },
 };
 
 void hbg_debugfs_init(struct hbg_priv *priv)
-- 
2.33.0