5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hao Lan <lanhao@xxxxxxxxxx>
[ Upstream commit 09431ed8de874881e2d5d430042d718ae074d371 ]
Currently, the function hclge_mbx_handler() has too many switch-case
statements, it makes this function too long. To improve code readability,
refactor this function and use lookup table instead.
Signed-off-by: Hao Lan <lanhao@xxxxxxxxxx>
Signed-off-by: Guangbin Huang <huangguangbin2@xxxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Stable-dep-of: 669554c512d2 ("net: hns3: direct return when receive a unknown mailbox message")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
.../net/ethernet/hisilicon/hns3/hclge_mbx.h | 11 +
.../hisilicon/hns3/hns3pf/hclge_mbx.c | 415 ++++++++++++------
2 files changed, 284 insertions(+), 142 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index 09a2a7c9fca43..debbaa1822aa0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -212,6 +212,17 @@ struct hclgevf_mbx_arq_ring {
__le16 msg_q[HCLGE_MBX_MAX_ARQ_MSG_NUM][HCLGE_MBX_MAX_ARQ_MSG_SIZE];
};
+struct hclge_dev;
+
+#define HCLGE_MBX_OPCODE_MAX 256
+struct hclge_mbx_ops_param {
+ struct hclge_vport *vport;
+ struct hclge_mbx_vf_to_pf_cmd *req;
+ struct hclge_respond_to_vf_msg *resp_msg;
+};
+
+typedef int (*hclge_mbx_ops_fn)(struct hclge_mbx_ops_param *param);
+
#define hclge_mbx_ring_ptr_move_crq(crq) \
(crq->next_to_use = (crq->next_to_use + 1) % crq->desc_num)
#define hclge_mbx_tail_ptr_move_arq(arq) \
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 839555bf4bc49..39848bcd77c75 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -774,17 +774,284 @@ static void hclge_handle_vf_tbl(struct hclge_vport *vport,
}
}
+static int
+hclge_mbx_map_ring_to_vector_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_map_unmap_ring_to_vf_vector(param->vport, true,
+ param->req);
+}
+
+static int
+hclge_mbx_unmap_ring_to_vector_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_map_unmap_ring_to_vf_vector(param->vport, false,
+ param->req);
+}
+
+static int
+hclge_mbx_get_ring_vector_map_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_get_vf_ring_vector_map(param->vport, param->req,
+ param->resp_msg);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "PF fail(%d) to get VF ring vector map\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_set_promisc_mode_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_set_vf_promisc_mode(param->vport, param->req);
+ return 0;
+}
+
+static int hclge_mbx_set_unicast_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_set_vf_uc_mac_addr(param->vport, param->req);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "PF fail(%d) to set VF UC MAC Addr\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_set_multicast_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_set_vf_mc_mac_addr(param->vport, param->req);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "PF fail(%d) to set VF MC MAC Addr\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_set_vlan_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_set_vf_vlan_cfg(param->vport, param->req, param->resp_msg);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "PF failed(%d) to config VF's VLAN\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_set_alive_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_set_vf_alive(param->vport, param->req);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "PF failed(%d) to set VF's ALIVE\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_get_qinfo_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_vf_queue_info(param->vport, param->resp_msg);
+ return 0;
+}
+
+static int hclge_mbx_get_qdepth_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_vf_queue_depth(param->vport, param->resp_msg);
+ return 0;
+}
+
+static int hclge_mbx_get_basic_info_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_basic_info(param->vport, param->resp_msg);
+ return 0;
+}
+
+static int hclge_mbx_get_link_status_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_push_vf_link_status(param->vport);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "failed to inform link stat to VF, ret = %d\n",
+ ret);
+ return ret;
+}
+
+static int hclge_mbx_queue_reset_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_mbx_reset_vf_queue(param->vport, param->req,
+ param->resp_msg);
+}
+
+static int hclge_mbx_reset_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_reset_vf(param->vport);
+}
+
+static int hclge_mbx_keep_alive_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_vf_keep_alive(param->vport);
+ return 0;
+}
+
+static int hclge_mbx_set_mtu_handler(struct hclge_mbx_ops_param *param)
+{
+ int ret;
+
+ ret = hclge_set_vf_mtu(param->vport, param->req);
+ if (ret)
+ dev_err(¶m->vport->back->pdev->dev,
+ "VF fail(%d) to set mtu\n", ret);
+ return ret;
+}
+
+static int hclge_mbx_get_qid_in_pf_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_get_queue_id_in_pf(param->vport, param->req,
+ param->resp_msg);
+}
+
+static int hclge_mbx_get_rss_key_handler(struct hclge_mbx_ops_param *param)
+{
+ return hclge_get_rss_key(param->vport, param->req, param->resp_msg);
+}
+
+static int hclge_mbx_get_link_mode_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_link_mode(param->vport, param->req);
+ return 0;
+}
+
+static int
+hclge_mbx_get_vf_flr_status_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_rm_vport_all_mac_table(param->vport, false,
+ HCLGE_MAC_ADDR_UC);
+ hclge_rm_vport_all_mac_table(param->vport, false,
+ HCLGE_MAC_ADDR_MC);
+ hclge_rm_vport_all_vlan_table(param->vport, false);
+ return 0;
+}
+
+static int hclge_mbx_vf_uninit_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_rm_vport_all_mac_table(param->vport, true,
+ HCLGE_MAC_ADDR_UC);
+ hclge_rm_vport_all_mac_table(param->vport, true,
+ HCLGE_MAC_ADDR_MC);
+ hclge_rm_vport_all_vlan_table(param->vport, true);
+ return 0;
+}
+
+static int hclge_mbx_get_media_type_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_vf_media_type(param->vport, param->resp_msg);
+ return 0;
+}
+
+static int hclge_mbx_push_link_status_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_handle_link_change_event(param->vport->back, param->req);
+ return 0;
+}
+
+static int hclge_mbx_get_mac_addr_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_get_vf_mac_addr(param->vport, param->resp_msg);
+ return 0;
+}
+
+static int hclge_mbx_ncsi_error_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_handle_ncsi_error(param->vport->back);
+ return 0;
+}
+
+static int hclge_mbx_handle_vf_tbl_handler(struct hclge_mbx_ops_param *param)
+{
+ hclge_handle_vf_tbl(param->vport, param->req);
+ return 0;
+}
+
+static const hclge_mbx_ops_fn hclge_mbx_ops_list[HCLGE_MBX_OPCODE_MAX] = {
+ [HCLGE_MBX_RESET] = hclge_mbx_reset_handler,
+ [HCLGE_MBX_SET_UNICAST] = hclge_mbx_set_unicast_handler,
+ [HCLGE_MBX_SET_MULTICAST] = hclge_mbx_set_multicast_handler,
+ [HCLGE_MBX_SET_VLAN] = hclge_mbx_set_vlan_handler,
+ [HCLGE_MBX_MAP_RING_TO_VECTOR] = hclge_mbx_map_ring_to_vector_handler,
+ [HCLGE_MBX_UNMAP_RING_TO_VECTOR] = hclge_mbx_unmap_ring_to_vector_handler,
+ [HCLGE_MBX_SET_PROMISC_MODE] = hclge_mbx_set_promisc_mode_handler,
+ [HCLGE_MBX_GET_QINFO] = hclge_mbx_get_qinfo_handler,
+ [HCLGE_MBX_GET_QDEPTH] = hclge_mbx_get_qdepth_handler,
+ [HCLGE_MBX_GET_BASIC_INFO] = hclge_mbx_get_basic_info_handler,
+ [HCLGE_MBX_GET_RSS_KEY] = hclge_mbx_get_rss_key_handler,
+ [HCLGE_MBX_GET_MAC_ADDR] = hclge_mbx_get_mac_addr_handler,
+ [HCLGE_MBX_GET_LINK_STATUS] = hclge_mbx_get_link_status_handler,
+ [HCLGE_MBX_QUEUE_RESET] = hclge_mbx_queue_reset_handler,
+ [HCLGE_MBX_KEEP_ALIVE] = hclge_mbx_keep_alive_handler,
+ [HCLGE_MBX_SET_ALIVE] = hclge_mbx_set_alive_handler,
+ [HCLGE_MBX_SET_MTU] = hclge_mbx_set_mtu_handler,
+ [HCLGE_MBX_GET_QID_IN_PF] = hclge_mbx_get_qid_in_pf_handler,
+ [HCLGE_MBX_GET_LINK_MODE] = hclge_mbx_get_link_mode_handler,
+ [HCLGE_MBX_GET_MEDIA_TYPE] = hclge_mbx_get_media_type_handler,
+ [HCLGE_MBX_VF_UNINIT] = hclge_mbx_vf_uninit_handler,
+ [HCLGE_MBX_HANDLE_VF_TBL] = hclge_mbx_handle_vf_tbl_handler,
+ [HCLGE_MBX_GET_RING_VECTOR_MAP] = hclge_mbx_get_ring_vector_map_handler,
+ [HCLGE_MBX_GET_VF_FLR_STATUS] = hclge_mbx_get_vf_flr_status_handler,
+ [HCLGE_MBX_PUSH_LINK_STATUS] = hclge_mbx_push_link_status_handler,
+ [HCLGE_MBX_NCSI_ERROR] = hclge_mbx_ncsi_error_handler,
+};
+
+static void hclge_mbx_request_handling(struct hclge_mbx_ops_param *param)
+{
+ hclge_mbx_ops_fn cmd_func = NULL;
+ struct hclge_dev *hdev;
+ int ret = 0;
+
+ hdev = param->vport->back;
+ cmd_func = hclge_mbx_ops_list[param->req->msg.code];
+ if (cmd_func)
+ ret = cmd_func(param);
+ else
+ dev_err(&hdev->pdev->dev,
+ "un-supported mailbox message, code = %u\n",
+ param->req->msg.code);
+
+ /* PF driver should not reply IMP */
+ if (hnae3_get_bit(param->req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) &&
+ param->req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) {
+ param->resp_msg->status = ret;
+ if (time_is_before_jiffies(hdev->last_mbx_scheduled +
+ HCLGE_MBX_SCHED_TIMEOUT))
+ dev_warn(&hdev->pdev->dev,
+ "resp vport%u mbx(%u,%u) late\n",
+ param->req->mbx_src_vfid,
+ param->req->msg.code,
+ param->req->msg.subcode);
+
+ hclge_gen_resp_to_vf(param->vport, param->req, param->resp_msg);
+ }
+}
+
void hclge_mbx_handler(struct hclge_dev *hdev)
{
struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
struct hclge_respond_to_vf_msg resp_msg;
struct hclge_mbx_vf_to_pf_cmd *req;
- struct hclge_vport *vport;
+ struct hclge_mbx_ops_param param;
struct hclge_desc *desc;
- bool is_del = false;
unsigned int flag;
- int ret = 0;
+ param.resp_msg = &resp_msg;
/* handle all the mailbox requests in the queue */
while (!hclge_cmd_crq_empty(&hdev->hw)) {
if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) {
@@ -808,152 +1075,16 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
continue;
}
- vport = &hdev->vport[req->mbx_src_vfid];
-
trace_hclge_pf_mbx_get(hdev, req);
/* clear the resp_msg before processing every mailbox message */
memset(&resp_msg, 0, sizeof(resp_msg));
-
- switch (req->msg.code) {
- case HCLGE_MBX_MAP_RING_TO_VECTOR:
- ret = hclge_map_unmap_ring_to_vf_vector(vport, true,
- req);
- break;
- case HCLGE_MBX_UNMAP_RING_TO_VECTOR:
- 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,
- "PF fail(%d) to get VF ring vector map\n",
- ret);
- break;
- case HCLGE_MBX_SET_PROMISC_MODE:
- hclge_set_vf_promisc_mode(vport, req);
- break;
- case HCLGE_MBX_SET_UNICAST:
- ret = hclge_set_vf_uc_mac_addr(vport, req);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "PF fail(%d) to set VF UC MAC Addr\n",
- ret);
- break;
- case HCLGE_MBX_SET_MULTICAST:
- ret = hclge_set_vf_mc_mac_addr(vport, req);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "PF fail(%d) to set VF MC MAC Addr\n",
- ret);
- break;
- case HCLGE_MBX_SET_VLAN:
- ret = hclge_set_vf_vlan_cfg(vport, req, &resp_msg);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "PF failed(%d) to config VF's VLAN\n",
- ret);
- break;
- case HCLGE_MBX_SET_ALIVE:
- ret = hclge_set_vf_alive(vport, req);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "PF failed(%d) to set VF's ALIVE\n",
- ret);
- break;
- case HCLGE_MBX_GET_QINFO:
- hclge_get_vf_queue_info(vport, &resp_msg);
- break;
- case HCLGE_MBX_GET_QDEPTH:
- hclge_get_vf_queue_depth(vport, &resp_msg);
- break;
- case HCLGE_MBX_GET_BASIC_INFO:
- hclge_get_basic_info(vport, &resp_msg);
- break;
- case HCLGE_MBX_GET_LINK_STATUS:
- ret = hclge_push_vf_link_status(vport);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "failed to inform link stat to VF, ret = %d\n",
- ret);
- break;
- case HCLGE_MBX_QUEUE_RESET:
- ret = hclge_mbx_reset_vf_queue(vport, req, &resp_msg);
- break;
- case HCLGE_MBX_RESET:
- ret = hclge_reset_vf(vport);
- break;
- case HCLGE_MBX_KEEP_ALIVE:
- hclge_vf_keep_alive(vport);
- break;
- case HCLGE_MBX_SET_MTU:
- ret = hclge_set_vf_mtu(vport, req);
- if (ret)
- 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, &resp_msg);
- break;
- case HCLGE_MBX_GET_RSS_KEY:
- ret = hclge_get_rss_key(vport, req, &resp_msg);
- break;
- case HCLGE_MBX_GET_LINK_MODE:
- hclge_get_link_mode(vport, req);
- break;
- case HCLGE_MBX_GET_VF_FLR_STATUS:
- case HCLGE_MBX_VF_UNINIT:
- is_del = req->msg.code == HCLGE_MBX_VF_UNINIT;
- hclge_rm_vport_all_mac_table(vport, is_del,
- HCLGE_MAC_ADDR_UC);
- hclge_rm_vport_all_mac_table(vport, is_del,
- HCLGE_MAC_ADDR_MC);
- hclge_rm_vport_all_vlan_table(vport, is_del);
- break;
- case HCLGE_MBX_GET_MEDIA_TYPE:
- hclge_get_vf_media_type(vport, &resp_msg);
- break;
- case HCLGE_MBX_PUSH_LINK_STATUS:
- hclge_handle_link_change_event(hdev, req);
- break;
- case HCLGE_MBX_GET_MAC_ADDR:
- hclge_get_vf_mac_addr(vport, &resp_msg);
- break;
- case HCLGE_MBX_NCSI_ERROR:
- hclge_handle_ncsi_error(hdev);
- break;
- case HCLGE_MBX_HANDLE_VF_TBL:
- hclge_handle_vf_tbl(vport, req);
- break;
- default:
- dev_err(&hdev->pdev->dev,
- "un-supported mailbox message, code = %u\n",
- req->msg.code);
- break;
- }
-
- /* PF driver should not reply IMP */
- if (hnae3_get_bit(req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) &&
- req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) {
- resp_msg.status = ret;
- if (time_is_before_jiffies(hdev->last_mbx_scheduled +
- HCLGE_MBX_SCHED_TIMEOUT))
- dev_warn(&hdev->pdev->dev,
- "resp vport%u mbx(%u,%u) late\n",
- req->mbx_src_vfid,
- req->msg.code,
- req->msg.subcode);
-
- hclge_gen_resp_to_vf(vport, req, &resp_msg);
- }
+ param.vport = &hdev->vport[req->mbx_src_vfid];
+ param.req = req;
+ hclge_mbx_request_handling(¶m);
crq->desc[crq->next_to_use].flag = 0;
hclge_mbx_ring_ptr_move_crq(crq);
-
- /* reinitialize ret after complete the mbx message processing */
- ret = 0;
}
/* Write back CMDQ_RQ header pointer, M7 need this pointer */
--
2.43.0
