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Sat, 10 Nov 2018 06:09:00 +0800 From: Salil Mehta To: CC: , , , , , , , , , , , liuzhongzhu Subject: [RFC PATCH 07/10] net: hns3: Add checksum info query function Date: Fri, 9 Nov 2018 22:07:40 +0000 Message-ID: <20181109220743.10264-8-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20181109220743.10264-1-salil.mehta@huawei.com> References: <20181109220743.10264-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.202.226.54] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: liuzhongzhu 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 Signed-off-by: Salil Mehta --- 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 -- 2.7.4 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 +#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