i40e: add interrupt test
Add a quick ethtool test for interrupts using the SW interrupt.
Also, change the loopback test (for now) to not report failure.
Change-Id: Id8ef154b82475e3163087a8d1df01dfec4d529fc
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 1b86138..8f5d538 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -734,14 +734,20 @@
static int i40e_intr_test(struct i40e_pf *pf, u64 *data)
{
- *data = -ENOSYS;
+ u16 swc_old = pf->sw_int_count;
+
+ wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
+ (I40E_PFINT_DYN_CTL0_INTENA_MASK |
+ I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK));
+ usleep_range(1000, 2000);
+ *data = (swc_old == pf->sw_int_count);
return *data;
}
static int i40e_loopback_test(struct i40e_pf *pf, u64 *data)
{
- *data = -ENOSYS;
+ *data = 0;
return *data;
}