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From:   Salil Mehta <salil.mehta@huawei.com>
To:     <davem@davemloft.net>
CC:     <salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
        <lipeng321@huawei.com>, <mehta.salil@opnsrc.net>,
        <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linuxarm@huawei.com>, liuzhongzhu <liuzhongzhu@huawei.com>
Subject: [RFC net-next 8/9] net: hns3: Add "queue map" information query function
Date:   Sun, 2 Dec 2018 23:09:32 +0000
Message-ID: <20181202230933.15560-9-salil.mehta@huawei.com>
In-Reply-To: <20181202230933.15560-1-salil.mehta@huawei.com>
References: <20181202230933.15560-1-salil.mehta@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: liuzhongzhu <liuzhongzhu@huawei.com>

This patch prints queue map information.

debugfs command:
echo dump queue map > cmd

Sample Command:
root@(none)# echo queue map > cmd
 local queue id | global queue id | vector id
          0              32             769
          1              33             770
          2              34             771
          3              35             772
          4              36             773
          5              37             774
          6              38             775
          7              39             776
          8              40             777
          9              41             778
         10              42             779
         11              43             780
         12              44             781
         13              45             782
         14              46             783
         15              47             784
root@(none)#

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h    |  1 +
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  1 +
 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 33 ++++++++++++++++++++++
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    |  4 +--
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  1 +
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 20 +++++++++++++
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  | 18 ++++++++++++
 7 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index 4d9cf39da48c..691d12174902 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -39,6 +39,7 @@ enum HCLGE_MBX_OPCODE {
 	HCLGE_MBX_KEEP_ALIVE,		/* (VF -> PF) send keep alive cmd */
 	HCLGE_MBX_SET_ALIVE,		/* (VF -> PF) set alive state */
 	HCLGE_MBX_SET_MTU,		/* (VF -> PF) set mtu */
+	HCLGE_MBX_GET_QID_IN_PF,	/* (VF -> PF) get queue id in pf */
 };
 
 /* below are per-VF mac-vlan subcodes */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index a1707b77c47f..da965ee82393 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -459,6 +459,7 @@ struct hnae3_ae_ops {
 	bool (*ae_dev_resetting)(struct hnae3_handle *handle);
 	unsigned long (*ae_dev_reset_cnt)(struct hnae3_handle *handle);
 	int (*set_gro_en)(struct hnae3_handle *handle, int enable);
+	u16 (*get_global_queue_id)(struct hnae3_handle *handle, u16 queue_id);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 4fb2bff66614..826f8c13218f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -125,6 +125,36 @@ static int hns3_dbg_queue_info(struct hnae3_handle *h, char *cmd_buf)
 	return 0;
 }
 
+static int hns3_dbg_queue_map(struct hnae3_handle *h)
+{
+	struct hns3_nic_priv *priv = h->priv;
+	struct hns3_nic_ring_data *ring_data;
+	int i;
+
+	if (!h->ae_algo->ops->get_global_queue_id)
+		return -EOPNOTSUPP;
+
+	dev_info(&h->pdev->dev, "map info for queue id and vector id\n");
+	dev_info(&h->pdev->dev,
+		 "local queue id | global queue id | vector id\n");
+	for (i = 0; i < h->kinfo.num_tqps; i++) {
+		u16 global_qid;
+
+		global_qid = h->ae_algo->ops->get_global_queue_id(h, i);
+		ring_data = &priv->ring_data[i];
+		if (!ring_data || !ring_data->ring ||
+		    !ring_data->ring->tqp_vector)
+			continue;
+
+		dev_info(&h->pdev->dev,
+			 "      %4d            %4d            %4d\n",
+			 i, global_qid,
+			 ring_data->ring->tqp_vector->vector_irq);
+	}
+
+	return 0;
+}
+
 static int hns3_dbg_bd_info(struct hnae3_handle *h, char *cmd_buf)
 {
 	struct hns3_nic_priv *priv = h->priv;
@@ -207,6 +237,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
 
 	dev_info(&h->pdev->dev, "available commands\n");
 	dev_info(&h->pdev->dev, "queue info [number]\n");
+	dev_info(&h->pdev->dev, "queue map\n");
 	dev_info(&h->pdev->dev, "bd info [q_num] <bd index>\n");
 	dev_info(&h->pdev->dev, "dump fd tcam\n");
 	dev_info(&h->pdev->dev, "dump tc\n");
@@ -306,6 +337,8 @@ static ssize_t hns3_dbg_cmd_write(struct file *filp, const char __user *buffer,
 		hns3_dbg_help(handle);
 	else if (strncmp(cmd_buf, "queue info", 10) == 0)
 		ret = hns3_dbg_queue_info(handle, cmd_buf);
+	else if (strncmp(cmd_buf, "queue map", 9) == 0)
+		ret = hns3_dbg_queue_map(handle);
 	else if (strncmp(cmd_buf, "bd info", 7) == 0)
 		ret = hns3_dbg_bd_info(handle, cmd_buf);
 	else if (handle->ae_algo->ops->dbg_run_cmd)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 1c8cf840dff8..f56dbddd9432 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6511,8 +6511,7 @@ static int hclge_get_reset_status(struct hclge_dev *hdev, u16 queue_id)
 	return hnae3_get_bit(req->ready_to_reset, HCLGE_TQP_RESET_B);
 }
 
-static u16 hclge_covert_handle_qid_global(struct hnae3_handle *handle,
-					  u16 queue_id)
+u16 hclge_covert_handle_qid_global(struct hnae3_handle *handle, u16 queue_id)
 {
 	struct hnae3_queue *queue;
 	struct hclge_tqp *tqp;
@@ -7826,6 +7825,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.ae_dev_resetting = hclge_ae_dev_resetting,
 	.ae_dev_reset_cnt = hclge_ae_dev_reset_cnt,
 	.set_gro_en = hclge_gro_en,
+	.get_global_queue_id = hclge_covert_handle_qid_global,
 };
 
 static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 0dd23a1d81ea..7d038f736ab8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -817,4 +817,5 @@ int hclge_vport_start(struct hclge_vport *vport);
 void hclge_vport_stop(struct hclge_vport *vport);
 int hclge_set_vport_mtu(struct hclge_vport *vport, int new_mtu);
 int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf);
+u16 hclge_covert_handle_qid_global(struct hnae3_handle *handle, u16 queue_id);
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index e16a730a5f54..a1de451a85df 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -413,6 +413,19 @@ static int hclge_set_vf_mtu(struct hclge_vport *vport,
 	return hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
 }
 
+static int hclge_get_queue_id_in_pf(struct hclge_vport *vport,
+				    struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+{
+	u16 queue_id, qid_in_pf;
+	u8 resp_data[2];
+
+	memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id));
+	qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id);
+	memcpy(resp_data, &qid_in_pf, sizeof(qid_in_pf));
+
+	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data, 2);
+}
+
 static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
 {
 	u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
@@ -533,6 +546,13 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 				dev_err(&hdev->pdev->dev,
 					"VF fail(%d) to set mtu\n", ret);
 			break;
+		case HCLGE_MBX_GET_QID_IN_PF:
+			ret = hclge_get_queue_id_in_pf(vport, req);
+			if (ret)
+				dev_err(&hdev->pdev->dev,
+					"PF failed(%d) to get qid for VF\n",
+					ret);
+			break;
 		default:
 			dev_err(&hdev->pdev->dev,
 				"un-supported mailbox message, code = %d\n",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index efec1b7a6a64..5ad7fd2c962d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -204,6 +204,23 @@ static int hclgevf_get_queue_info(struct hclgevf_dev *hdev)
 	return 0;
 }
 
+static u16 hclgevf_get_qid_global(struct hnae3_handle *handle, u16 queue_id)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	u8 msg_data[2], resp_data[2];
+	u16 qid_in_pf = 0;
+	int ret;
+
+	memcpy(&msg_data[0], &queue_id, sizeof(queue_id));
+
+	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_QID_IN_PF, 0, msg_data,
+				   2, true, resp_data, 2);
+	if (!ret)
+		qid_in_pf = *(u16 *)resp_data;
+
+	return qid_in_pf;
+}
+
 static int hclgevf_alloc_tqps(struct hclgevf_dev *hdev)
 {
 	struct hclgevf_tqp *tqp;
@@ -2522,6 +2539,7 @@ static const struct hnae3_ae_ops hclgevf_ops = {
 	.ae_dev_reset_cnt = hclgevf_ae_dev_reset_cnt,
 	.set_gro_en = hclgevf_gro_en,
 	.set_mtu = hclgevf_set_mtu,
+	.get_global_queue_id = hclgevf_get_qid_global,
 };
 
 static struct hnae3_ae_algo ae_algovf = {
-- 
2.11.0