net: hns3: fix output information incomplete for dumping tx queue info with debugfs

mainlist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I72OPH
CVE: NA

Reference: https://patchwork.kernel.org/project/netdevbpf/patch/20230512100014.2522-2-lanhao@huawei.com/

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In function hns3_dump_tx_queue_info, The print buffer is not enough when
the tx BD number is configured to 32760. As a result several BD
information wouldn't be displayed.

So fix it by increasing the tx queue print buffer length.

Fixes: 630a6738 ("net: hns3: adjust string spaces of some parameters of tx bd info in debugfs")
Signed-off-by: NJie Wang <wangjie125@huawei.com>
Signed-off-by: NHao Lan <lanhao@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NJiantao Xiao <xiaojiantao1@h-partners.com>

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

@@ -130,7 +130,7 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
 		.name = "tx_bd_queue",
 		.cmd = HNAE3_DBG_CMD_TX_BD,
 		.dentry = HNS3_DBG_DENTRY_TX_BD,
-		.buf_len = HNS3_DBG_READ_LEN_4MB,
+		.buf_len = HNS3_DBG_READ_LEN_5MB,
 		.init = hns3_dbg_bd_file_init,
 	},
 	{

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h

@@ -10,6 +10,7 @@
 #define HNS3_DBG_READ_LEN_128KB	0x20000
 #define HNS3_DBG_READ_LEN_1MB	0x100000
 #define HNS3_DBG_READ_LEN_4MB	0x400000
+#define HNS3_DBG_READ_LEN_5MB	0x500000
 #define HNS3_DBG_WRITE_LEN	1024
 
 #define HNS3_DBG_DATA_STR_LEN	32