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Subject[PATCH net-next 1/5] net: hns3: add support for VF to query ring and vector mapping
Date
From: Guangbin Huang <huangguangbin2@huawei.com>

This patch adds support for VF to query the mapping of ring and
vector.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h | 1 +
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 91 ++++++++++++++++++++++
2 files changed, 92 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index 1ffe8fa..40c7087 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -46,6 +46,7 @@ enum HCLGE_MBX_OPCODE {
HCLGE_MBX_PUSH_PROMISC_INFO, /* (PF -> VF) push vf promisc info */
HCLGE_MBX_VF_UNINIT, /* (VF -> PF) vf is unintializing */
HCLGE_MBX_HANDLE_VF_TBL, /* (VF -> PF) store/clear hw table */
+ HCLGE_MBX_GET_RING_VECTOR_MAP, /* (VF -> PF) get ring-to-vector map */

HCLGE_MBX_GET_VF_FLR_STATUS = 200, /* (M7 -> PF) get vf flr status */
HCLGE_MBX_PUSH_LINK_STATUS, /* (M7 -> PF) get port link status */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 0874ae4..561d4a09 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -221,6 +221,89 @@ static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
return ret;
}

+static int hclge_query_ring_vector_map(struct hclge_vport *vport,
+ struct hnae3_ring_chain_node *ring_chain,
+ struct hclge_desc *desc)
+{
+ struct hclge_ctrl_vector_chain_cmd *req =
+ (struct hclge_ctrl_vector_chain_cmd *)desc->data;
+ struct hclge_dev *hdev = vport->back;
+ u16 tqp_type_and_id = 0;
+ int ret;
+
+ hclge_cmd_setup_basic_desc(desc, HCLGE_OPC_ADD_RING_TO_VECTOR, true);
+
+ hnae3_set_field(tqp_type_and_id, HCLGE_INT_TYPE_M, HCLGE_INT_TYPE_S,
+ hnae3_get_bit(ring_chain->flag, HNAE3_RING_TYPE_B));
+ hnae3_set_field(tqp_type_and_id, HCLGE_TQP_ID_M, HCLGE_TQP_ID_S,
+ ring_chain->tqp_index);
+ req->tqp_type_and_id[0] = cpu_to_le16(tqp_type_and_id);
+ req->vfid = vport->vport_id;
+
+ ret = hclge_cmd_send(&hdev->hw, desc, 1);
+ if (ret)
+ dev_err(&hdev->pdev->dev,
+ "failed to query VF ring vector map info, ret = %d.\n",
+ ret);
+
+ return ret;
+}
+
+static int hclge_get_vf_ring_vector_map(struct hclge_vport *vport,
+ struct hclge_mbx_vf_to_pf_cmd *req,
+ struct hclge_respond_to_vf_msg *resp)
+{
+#define HCLGE_LIMIT_RING_NUM 1
+#define HCLGE_RING_TYPE_OFFSET 0
+#define HCLGE_TQP_INDEX_OFFSET 1
+#define HCLGE_INT_GL_INDEX_OFFSET 2
+#define HCLGE_VECTOR_ID_OFFSET 3
+#define HCLGE_RING_VECTOR_MAP_INFO_LEN 4
+
+ struct hnae3_ring_chain_node ring_chain;
+ struct hclge_dev *hdev = vport->back;
+ struct hclge_desc desc;
+ struct hclge_ctrl_vector_chain_cmd *data =
+ (struct hclge_ctrl_vector_chain_cmd *)desc.data;
+ u16 tqp_type_and_id;
+ u8 int_gl_index;
+ int ret;
+
+ if (req->msg.param[0].tqp_index >= vport->nic.kinfo.rss_size) {
+ dev_err(&hdev->pdev->dev, "tqp index(%u) is out of range(0-%u)\n",
+ req->msg.param[0].tqp_index,
+ vport->nic.kinfo.rss_size - 1);
+ return -EINVAL;
+ }
+
+ req->msg.ring_num = HCLGE_LIMIT_RING_NUM;
+
+ memset(&ring_chain, 0, sizeof(ring_chain));
+ ret = hclge_get_ring_chain_from_mbx(req, &ring_chain, vport);
+ if (ret)
+ return ret;
+
+ ret = hclge_query_ring_vector_map(vport, &ring_chain, &desc);
+ if (ret) {
+ hclge_free_vector_ring_chain(&ring_chain);
+ return ret;
+ }
+
+ tqp_type_and_id = le16_to_cpu(data->tqp_type_and_id[0]);
+ int_gl_index = hnae3_get_field(tqp_type_and_id,
+ HCLGE_INT_GL_IDX_M, HCLGE_INT_GL_IDX_S);
+
+ resp->data[HCLGE_RING_TYPE_OFFSET] = req->msg.param[0].ring_type;
+ resp->data[HCLGE_TQP_INDEX_OFFSET] = req->msg.param[0].tqp_index;
+ resp->data[HCLGE_INT_GL_INDEX_OFFSET] = int_gl_index;
+ resp->data[HCLGE_VECTOR_ID_OFFSET] = data->int_vector_id;
+ resp->len = HCLGE_RING_VECTOR_MAP_INFO_LEN;
+
+ hclge_free_vector_ring_chain(&ring_chain);
+
+ return 0;
+}
+
static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
struct hclge_mbx_vf_to_pf_cmd *req)
{
@@ -694,6 +777,14 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
ret = hclge_map_unmap_ring_to_vf_vector(vport, false,
req);
break;
+ case HCLGE_MBX_GET_RING_VECTOR_MAP:
+ ret = hclge_get_vf_ring_vector_map(vport, req,
+ &resp_msg);
+ if (ret)
+ dev_err(&hdev->pdev->dev,
+ "failed to get VF ring vector map, ret = %d\n",
+ ret);
+ break;
case HCLGE_MBX_SET_PROMISC_MODE:
ret = hclge_set_vf_promisc_mode(vport, req);
if (ret)
--
2.7.4
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