qlcnic: add idc debug registers
When ever driver changes the device state, it should write
pci-func number and timestamp in debug registers.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 6a7b813..f1949c9 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -84,6 +84,7 @@
static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
+static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
@@ -620,6 +621,7 @@
goto err_out;
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
+ qlcnic_idc_debug_info(adapter, 1);
qlcnic_check_options(adapter);
@@ -1056,6 +1058,7 @@
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
+ adapter->dev_rst_time = jiffies;
adapter->ahw.pci_func = pci_func_id;
revision_id = pdev->revision;
@@ -1887,6 +1890,19 @@
}
#endif
+static void
+qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
+{
+ u32 val;
+
+ val = adapter->portnum & 0xf;
+ val |= encoding << 7;
+ val |= (jiffies - adapter->dev_rst_time) << 8;
+
+ QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
+ adapter->dev_rst_time = jiffies;
+}
+
static int
qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
{
@@ -2010,6 +2026,7 @@
case QLCNIC_DEV_COLD:
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
+ qlcnic_idc_debug_info(adapter, 0);
qlcnic_api_unlock(adapter);
return 1;
@@ -2102,6 +2119,8 @@
qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
FW_POLL_DELAY * 2);
QLCDB(adapter, DRV, "Quiscing the driver\n");
+ qlcnic_idc_debug_info(adapter, 0);
+
qlcnic_api_unlock(adapter);
return;
}
@@ -2111,6 +2130,7 @@
QLCNIC_DEV_INITIALIZING);
set_bit(__QLCNIC_START_FW, &adapter->state);
QLCDB(adapter, DRV, "Restarting fw\n");
+ qlcnic_idc_debug_info(adapter, 0);
}
qlcnic_api_unlock(adapter);
@@ -2206,6 +2226,7 @@
if (state == QLCNIC_DEV_READY) {
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
QLCDB(adapter, DRV, "NEED_RESET state set\n");
+ qlcnic_idc_debug_info(adapter, 0);
}
qlcnic_api_unlock(adapter);