diff options
| author | Shannon Nelson <shannon.nelson@intel.com> | 2013-11-16 10:00:44 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-12-05 23:13:01 -0800 |
| commit | cd92e72f2d0a5b576f025f693cfd306cebd8b84a (patch) | |
| tree | 659c2cae4e2a6d22624b829bbe6108db0bc6a5f4 /drivers/net | |
| parent | 2759997b0c84e5483482d5486df780da7935086b (diff) | |
| download | linux-cd92e72f2d0a5b576f025f693cfd306cebd8b84a.tar.bz2 | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 5 |
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index b82f501602c3..8806cab28c6a 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -250,6 +250,7 @@ struct i40e_pf { u16 globr_count; /* Global reset count */ u16 empr_count; /* EMP reset count */ u16 pfr_count; /* PF reset count */ + u16 sw_int_count; /* SW interrupt count */ struct mutex switch_mutex; u16 lan_vsi; /* our default LAN VSI */ diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 1b86138fa9e1..8f5d538c11c3 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_eeprom_test(struct i40e_pf *pf, u64 *data) 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; } diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index db626e04db24..d60673ebf139 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2752,6 +2752,11 @@ static irqreturn_t i40e_intr(int irq, void *data) ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA); + /* if interrupt but no bits showing, must be SWINT */ + if (((icr0 & ~I40E_PFINT_ICR0_INTEVENT_MASK) == 0) || + (icr0 & I40E_PFINT_ICR0_SWINT_MASK)) + pf->sw_int_count++; + /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */ if (icr0 & I40E_PFINT_ICR0_QUEUE_0_MASK) { |