[dpdk-dev] [PATCH 12/13] net/hns3: add process for MAC interrupt
Lijun Ou
oulijun at huawei.com
Wed Feb 24 02:28:58 CET 2021
From: Hongbo Zheng <zhenghongbo3 at huawei.com>
Enable the interrupt report of MAC when MAC state changes
and log the hardware MAC state value.
Signed-off-by: Hongbo Zheng <zhenghongbo3 at huawei.com>
Signed-off-by: Lijun Ou <oulijun at huawei.com>
---
drivers/net/hns3/hns3_cmd.h | 3 +++
drivers/net/hns3/hns3_ethdev.c | 57 ++++++++++++++++++++++++++++++++++++------
drivers/net/hns3/hns3_intr.c | 20 +++++++++++++++
drivers/net/hns3/hns3_intr.h | 4 +++
4 files changed, 76 insertions(+), 8 deletions(-)
diff --git a/drivers/net/hns3/hns3_cmd.h b/drivers/net/hns3/hns3_cmd.h
index 6ceb655..094bf7e 100644
--- a/drivers/net/hns3/hns3_cmd.h
+++ b/drivers/net/hns3/hns3_cmd.h
@@ -116,6 +116,9 @@ enum hns3_opcode_type {
HNS3_OPC_QUERY_LINK_STATUS = 0x0307,
HNS3_OPC_CONFIG_MAX_FRM_SIZE = 0x0308,
HNS3_OPC_CONFIG_SPEED_DUP = 0x0309,
+ HNS3_OPC_QUERY_MAC_TNL_INT = 0x0310,
+ HNS3_OPC_MAC_TNL_INT_EN = 0x0311,
+ HNS3_OPC_CLEAR_MAC_TNL_INT = 0x0312,
HNS3_OPC_CONFIG_FEC_MODE = 0x031A,
/* PFC/Pause commands */
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 8300fea..9cbcc13 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -217,9 +217,6 @@ hns3_check_event_cause(struct hns3_adapter *hns, uint32_t *clearval)
goto out;
}
- if (clearval && (vector0_int_stats || cmdq_src_val || hw_err_src_reg))
- hns3_warn(hw, "vector0_int_stats:0x%x cmdq_src_val:0x%x hw_err_src_reg:0x%x",
- vector0_int_stats, cmdq_src_val, hw_err_src_reg);
val = vector0_int_stats;
ret = HNS3_VECTOR0_EVENT_OTHER;
out:
@@ -258,6 +255,34 @@ hns3_clear_all_event_cause(struct hns3_hw *hw)
}
static void
+hns3_handle_mac_tnl(struct hns3_hw *hw)
+{
+ struct hns3_cmd_desc desc;
+ uint32_t status;
+ int ret;
+
+ /* query and clear mac tnl interruptions */
+ hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_QUERY_MAC_TNL_INT, true);
+ ret = hns3_cmd_send(hw, &desc, 1);
+ if (ret) {
+ hns3_err(hw, "failed to query mac tnl int, ret = %d.", ret);
+ return;
+ }
+
+ status = rte_le_to_cpu_32(desc.data[0]);
+ if (status) {
+ hns3_warn(hw, "mac tnl int occurs, status = 0x%x.", status);
+ hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CLEAR_MAC_TNL_INT,
+ false);
+ desc.data[0] = rte_cpu_to_le_32(HNS3_MAC_TNL_INT_CLR);
+ ret = hns3_cmd_send(hw, &desc, 1);
+ if (ret)
+ hns3_err(hw, "failed to clear mac tnl int, ret = %d.",
+ ret);
+ }
+}
+
+static void
hns3_interrupt_handler(void *param)
{
struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
@@ -265,24 +290,36 @@ hns3_interrupt_handler(void *param)
struct hns3_hw *hw = &hns->hw;
enum hns3_evt_cause event_cause;
uint32_t clearval = 0;
+ uint32_t vector0_int;
+ uint32_t ras_int;
+ uint32_t cmdq_int;
/* Disable interrupt */
hns3_pf_disable_irq0(hw);
event_cause = hns3_check_event_cause(hns, &clearval);
+ vector0_int = hns3_read_dev(hw, HNS3_VECTOR0_OTHER_INT_STS_REG);
+ ras_int = hns3_read_dev(hw, HNS3_RAS_PF_OTHER_INT_STS_REG);
+ cmdq_int = hns3_read_dev(hw, HNS3_VECTOR0_CMDQ_SRC_REG);
/* vector 0 interrupt is shared with reset and mailbox source events. */
if (event_cause == HNS3_VECTOR0_EVENT_ERR) {
- hns3_warn(hw, "Received err interrupt");
+ hns3_warn(hw, "received interrupt: vector0_int_stat:0x%x "
+ "ras_int_stat:0x%x cmdq_int_stat:0x%x",
+ vector0_int, ras_int, cmdq_int);
hns3_handle_msix_error(hns, &hw->reset.request);
hns3_handle_ras_error(hns, &hw->reset.request);
+ hns3_handle_mac_tnl(hw);
hns3_schedule_reset(hns);
} else if (event_cause == HNS3_VECTOR0_EVENT_RST) {
- hns3_warn(hw, "Received reset interrupt");
+ hns3_warn(hw, "received reset interrupt");
hns3_schedule_reset(hns);
- } else if (event_cause == HNS3_VECTOR0_EVENT_MBX)
+ } else if (event_cause == HNS3_VECTOR0_EVENT_MBX) {
hns3_dev_handle_mbx_msg(hw);
- else
- hns3_err(hw, "Received unknown event");
+ } else {
+ hns3_warn(hw, "received unknown event: vector0_int_stat:0x%x "
+ "ras_int_stat:0x%x cmdq_int_stat:0x%x",
+ vector0_int, ras_int, cmdq_int);
+ }
hns3_clear_event_cause(hw, event_cause, clearval);
/* Enable interrupt if it is not cause by reset */
@@ -4639,6 +4676,8 @@ hns3_update_link_status(struct hns3_hw *hw)
if (state != hw->mac.link_status) {
hw->mac.link_status = state;
hns3_warn(hw, "Link status change to %s!", state ? "up" : "down");
+ hns3_config_mac_tnl_int(hw,
+ state == ETH_LINK_UP ? true : false);
return true;
}
@@ -4957,6 +4996,7 @@ hns3_uninit_pf(struct rte_eth_dev *eth_dev)
(void)hns3_firmware_compat_config(hw, false);
hns3_uninit_umv_space(hw);
hns3_tqp_stats_uninit(hw);
+ hns3_config_mac_tnl_int(hw, false);
hns3_pf_disable_irq0(hw);
rte_intr_disable(&pci_dev->intr_handle);
hns3_intr_unregister(&pci_dev->intr_handle, hns3_interrupt_handler,
@@ -5282,6 +5322,7 @@ hns3_dev_stop(struct rte_eth_dev *dev)
rte_spinlock_lock(&hw->lock);
if (__atomic_load_n(&hw->reset.resetting, __ATOMIC_RELAXED) == 0) {
hns3_tm_dev_stop_proc(hw);
+ hns3_config_mac_tnl_int(hw, false);
hns3_stop_tqps(hw);
hns3_do_stop(hns);
hns3_unmap_rx_interrupt(dev);
diff --git a/drivers/net/hns3/hns3_intr.c b/drivers/net/hns3/hns3_intr.c
index 88ce4c6..2563504 100644
--- a/drivers/net/hns3/hns3_intr.c
+++ b/drivers/net/hns3/hns3_intr.c
@@ -1248,6 +1248,26 @@ enable_ssu_err_intr(struct hns3_adapter *hns, bool en)
return ret;
}
+void
+hns3_config_mac_tnl_int(struct hns3_hw *hw, bool en)
+{
+ struct hns3_cmd_desc desc;
+ int ret;
+
+ hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_MAC_TNL_INT_EN, false);
+ if (en)
+ desc.data[0] = rte_cpu_to_le_32(HNS3_MAC_TNL_INT_EN);
+ else
+ desc.data[0] = 0;
+
+ desc.data[1] = rte_cpu_to_le_32(HNS3_MAC_TNL_INT_EN_MASK);
+
+ ret = hns3_cmd_send(hw, &desc, 1);
+ if (ret)
+ hns3_err(hw, "fail to %s mac tnl intr, ret = %d",
+ en ? "enable" : "disable", ret);
+}
+
static int
config_ppu_err_intrs(struct hns3_adapter *hns, uint32_t cmd, bool en)
{
diff --git a/drivers/net/hns3/hns3_intr.h b/drivers/net/hns3/hns3_intr.h
index 19de1aa..c569a9d 100644
--- a/drivers/net/hns3/hns3_intr.h
+++ b/drivers/net/hns3/hns3_intr.h
@@ -22,6 +22,9 @@
#define HNS3_MAC_COMMON_ERR_INT_EN 0x107FF
#define HNS3_MAC_COMMON_ERR_INT_EN_MASK 0x107FF
+#define HNS3_MAC_TNL_INT_EN GENMASK(9, 0)
+#define HNS3_MAC_TNL_INT_EN_MASK GENMASK(9, 0)
+#define HNS3_MAC_TNL_INT_CLR GENMASK(9, 0)
#define HNS3_IMP_TCM_ECC_ERR_INT_EN 0xFFFF0000
#define HNS3_IMP_TCM_ECC_ERR_INT_EN_MASK 0xFFFF0000
@@ -99,6 +102,7 @@ struct hns3_hw_error_desc {
int hns3_enable_hw_error_intr(struct hns3_adapter *hns, bool state);
void hns3_handle_msix_error(struct hns3_adapter *hns, uint64_t *levels);
void hns3_handle_ras_error(struct hns3_adapter *hns, uint64_t *levels);
+void hns3_config_mac_tnl_int(struct hns3_hw *hw, bool en);
void hns3_intr_unregister(const struct rte_intr_handle *hdl,
rte_intr_callback_fn cb_fn, void *cb_arg);
--
2.7.4
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