[RFC PATCH 07/10] net: hns3: Add checksum info query function
From: Salil Mehta
Date: Fri Nov 09 2018 - 17:09:40 EST
From: liuzhongzhu <liuzhongzhu@xxxxxxxxxx>
This patch prints checksum config information
related to various layers of headers.
debugfs command:
echo dump checksum > cmd
Sample Output:
root@(none)# echo dump checksum > cmd
hns3 0000:7d:00.0: dump checksum
hns3 0000:7d:00.0: outer_l3: enable
hns3 0000:7d:00.0: outer_udp: enable
hns3 0000:7d:00.0: inner_l3: enable
hns3 0000:7d:00.0: inner_tcp: enable
hns3 0000:7d:00.0: inner_udp: enable
hns3 0000:7d:00.0: inner_sctp: enable
root@(none)#
Signed-off-by: liuzhongzhu <liuzhongzhu@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 1 +
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 3 ++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 50 ++++++++++++++++++++++
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h | 11 +++++
4 files changed, 65 insertions(+)
create mode 100644 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 4d7be38..27757be 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -132,6 +132,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump promisc [vf id]\n");
dev_info(&h->pdev->dev, "dump tc\n");
dev_info(&h->pdev->dev, "dump tm\n");
+ dev_info(&h->pdev->dev, "dump checksum\n");
}
static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index cc0f214..2c84e39 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -96,6 +96,9 @@ enum hclge_opcode_type {
HCLGE_OPC_CONFIG_SPEED_DUP = 0x0309,
HCLGE_OPC_SERDES_LOOPBACK = 0x0315,
+ /* check sum command */
+ HCLGE_OPC_CFG_CHECKSUM_EN = 0x0601,
+
/* PFC/Pause commands */
HCLGE_OPC_CFG_MAC_PAUSE_EN = 0x0701,
HCLGE_OPC_CFG_PFC_PAUSE_EN = 0x0702,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 4ada773..4fa546f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -3,6 +3,7 @@
#include <linux/device.h>
+#include "hclge_debugfs.h"
#include "hclge_cmd.h"
#include "hclge_main.h"
#include "hclge_tm.h"
@@ -17,6 +18,15 @@ static void hclge_print(struct hclge_dev *hdev, bool flag, char *true_buf,
dev_info(&hdev->pdev->dev, "%s\n", false_buf);
}
+static void hclge_title_print(struct hclge_dev *hdev, bool flag,
+ char *title_buf, char *true_buf, char *false_buf)
+{
+ if (flag)
+ dev_info(&hdev->pdev->dev, "%s: %s\n", title_buf, true_buf);
+ else
+ dev_info(&hdev->pdev->dev, "%s: %s\n", title_buf, false_buf);
+}
+
static void hclge_title_idx_print(struct hclge_dev *hdev, bool flag, int index,
char *title_buf, char *true_buf,
char *false_buf)
@@ -293,6 +303,44 @@ static void hclge_dbg_dump_tm(struct hclge_dev *hdev)
cmd, ret);
}
+static void hclge_dbg_dump_checksum(struct hclge_dev *hdev)
+{
+#define HCLGE_DBG_OUTER_L3_B BIT(0)
+#define HCLGE_DBG_OUTER_UDP_B BIT(1)
+#define HCLGE_DBG_INNER_L3_B BIT(0)
+#define HCLGE_DBG_INNER_TCP_B BIT(1)
+#define HCLGE_DBG_INNER_UDP_B BIT(2)
+#define HCLGE_DBG_INNER_SCTP_B BIT(3)
+
+ struct hclge_checksum_cmd *checksum;
+ struct hclge_desc desc;
+ int ret;
+
+ hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CFG_CHECKSUM_EN, true);
+
+ ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+ if (ret) {
+ dev_err(&hdev->pdev->dev, "dump checksum fail, status is %d.\n",
+ ret);
+ return;
+ }
+
+ checksum = (struct hclge_checksum_cmd *)desc.data;
+ dev_info(&hdev->pdev->dev, "dump checksum\n");
+ hclge_title_print(hdev, checksum->outer & HCLGE_DBG_OUTER_L3_B,
+ "outer_l3", "enable", "disable");
+ hclge_title_print(hdev, checksum->outer & HCLGE_DBG_OUTER_UDP_B,
+ "outer_udp", "enable", "disable");
+ hclge_title_print(hdev, checksum->inner & HCLGE_DBG_INNER_L3_B,
+ "inner_l3", "enable", "disable");
+ hclge_title_print(hdev, checksum->inner & HCLGE_DBG_INNER_TCP_B,
+ "inner_tcp", "enable", "disable");
+ hclge_title_print(hdev, checksum->inner & HCLGE_DBG_INNER_UDP_B,
+ "inner_udp", "enable", "disable");
+ hclge_title_print(hdev, checksum->inner & HCLGE_DBG_INNER_SCTP_B,
+ "inner_sctp", "enable", "disable");
+}
+
static void hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, u8 stage,
bool sel_x, u32 loc)
{
@@ -360,6 +408,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
hclge_dbg_dump_tc(hdev);
} else if (strncmp(cmd_buf, "dump tm", 7) == 0) {
hclge_dbg_dump_tm(hdev);
+ } else if (strncmp(cmd_buf, "dump checksum", 13) == 0) {
+ hclge_dbg_dump_checksum(hdev);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
new file mode 100644
index 0000000..4ec9ced
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2018-2019 Hisilicon Limited.
+
+#ifndef __HCLGE_DEBUGFS_H
+#define __HCLGE_DEBUGFS_H
+
+struct hclge_checksum_cmd {
+ u8 outer;
+ u8 inner;
+};
+#endif
--
2.7.4