[2/9] net/hns3: get link state change through mailbox
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Commit Message
From: Hongbo Zheng <zhenghongbo3@huawei.com>
When link down occurs, firmware adds the function of sending message
to PF driver through mailbox, hns3 PMD driver can recognize link state
change faster through the message.
Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
---
drivers/net/hns3/hns3_ethdev.c | 8 ++++++--
drivers/net/hns3/hns3_ethdev.h | 1 +
drivers/net/hns3/hns3_mbx.c | 37 ++++++++++++++++++++++++++++++++++
drivers/net/hns3/hns3_mbx.h | 8 ++++++++
4 files changed, 52 insertions(+), 2 deletions(-)
@@ -218,6 +218,8 @@ hns3_interrupt_handler(void *param)
hns3_schedule_reset(hns);
} else if (event_cause == HNS3_VECTOR0_EVENT_RST)
hns3_schedule_reset(hns);
+ else if (event_cause == HNS3_VECTOR0_EVENT_MBX)
+ hns3_dev_handle_mbx_msg(hw);
else
hns3_err(hw, "Received unknown event");
@@ -3806,14 +3808,16 @@ hns3_get_mac_link_status(struct hns3_hw *hw)
return !!link_status;
}
-static void
+void
hns3_update_link_status(struct hns3_hw *hw)
{
int state;
state = hns3_get_mac_link_status(hw);
- if (state != hw->mac.link_status)
+ if (state != hw->mac.link_status) {
hw->mac.link_status = state;
+ hns3_warn(hw, "Link status change to %s!", state ? "up" : "down");
+ }
}
static void
@@ -631,6 +631,7 @@ int hns3_dev_filter_ctrl(struct rte_eth_dev *dev,
enum rte_filter_op filter_op, void *arg);
bool hns3_is_reset_pending(struct hns3_adapter *hns);
bool hns3vf_is_reset_pending(struct hns3_adapter *hns);
+void hns3_update_link_status(struct hns3_hw *hw);
static inline bool
is_reset_pending(struct hns3_adapter *hns)
@@ -282,6 +282,40 @@ hns3_update_resp_position(struct hns3_hw *hw, uint32_t resp_msg)
resp->tail = tail;
}
+static void
+hns3_link_fail_parse(struct hns3_hw *hw, uint8_t link_fail_code)
+{
+ switch (link_fail_code) {
+ case HNS3_MBX_LF_NORMAL:
+ break;
+ case HNS3_MBX_LF_REF_CLOCK_LOST:
+ hns3_warn(hw, "Reference clock lost!");
+ break;
+ case HNS3_MBX_LF_XSFP_TX_DISABLE:
+ hns3_warn(hw, "SFP tx is disabled!");
+ break;
+ case HNS3_MBX_LF_XSFP_ABSENT:
+ hns3_warn(hw, "SFP is absent!");
+ break;
+ default:
+ hns3_warn(hw, "Unknown fail code:%u!", link_fail_code);
+ break;
+ }
+}
+
+static void
+hns3_handle_link_change_event(struct hns3_hw *hw,
+ struct hns3_mbx_pf_to_vf_cmd *req)
+{
+#define LINK_STATUS_OFFSET 1
+#define LINK_FAIL_CODE_OFFSET 2
+
+ if (!req->msg[LINK_STATUS_OFFSET])
+ hns3_link_fail_parse(hw, req->msg[LINK_FAIL_CODE_OFFSET]);
+
+ hns3_update_link_status(hw);
+}
+
void
hns3_dev_handle_mbx_msg(struct hns3_hw *hw)
{
@@ -335,6 +369,9 @@ hns3_dev_handle_mbx_msg(struct hns3_hw *hw)
hns3_mbx_handler(hw);
break;
+ case HNS3_MBX_PUSH_LINK_STATUS:
+ hns3_handle_link_change_event(hw, req);
+ break;
default:
hns3_err(hw,
"VF received unsupported(%d) mbx msg from PF",
@@ -41,6 +41,7 @@ enum HNS3_MBX_OPCODE {
HNS3_MBX_GET_QID_IN_PF, /* (VF -> PF) get queue id in pf */
HNS3_MBX_HANDLE_VF_TBL = 38, /* (VF -> PF) store/clear hw cfg tbl */
+ HNS3_MBX_PUSH_LINK_STATUS = 201, /* (IMP -> PF) get port link status */
};
/* below are per-VF mac-vlan subcodes */
@@ -64,6 +65,13 @@ enum hns3_mbx_tbl_cfg_subcode {
HNS3_MBX_VPORT_LIST_CLEAR = 0,
};
+enum hns3_mbx_link_fail_subcode {
+ HNS3_MBX_LF_NORMAL = 0,
+ HNS3_MBX_LF_REF_CLOCK_LOST,
+ HNS3_MBX_LF_XSFP_TX_DISABLE,
+ HNS3_MBX_LF_XSFP_ABSENT,
+};
+
#define HNS3_MBX_MAX_MSG_SIZE 16
#define HNS3_MBX_MAX_RESP_DATA_SIZE 8
#define HNS3_MBX_RING_MAP_BASIC_MSG_NUM 3