diff options
| author | Mitch Williams <mitch.a.williams@intel.com> | 2015-12-23 20:05:48 (GMT) |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-02-17 02:54:53 (GMT) |
| commit | 1d0a4ada8401c73b360fc8492064a1107fca019b (patch) | |
| tree | 416c0a638082edc8018cf4f9a5722326579804dc | |
| parent | a3d772a3925d85721ad8518db14603fb1cd99295 (diff) | |
| download | linux-1d0a4ada8401c73b360fc8492064a1107fca019b.tar.xz | |
i40e: add counter for arq overflows
Sometimes, ARQ overflows are a big deal and tell us that the
firmware/hardware/driver/something is having problems. But normally
they're no big deal. To assist in assessing this, add a counter to
our Ethtool stats. A handful of ARQ overflows during VF init is no
problem. A large, ever-growing number indicates that Something Bad is
happening.
Change-ID: Ie5348bfbc8a54a890559cb00279c28d976a55096
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 53ed3bd..944dee9 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -393,6 +393,7 @@ struct i40e_pf { struct i40e_vf *vf; int num_alloc_vfs; /* actual number of VFs allocated */ u32 vf_aq_requests; + u32 arq_overflows; /* Not fatal, possibly indicative of problems */ /* DCBx/DCBNL capability for PF that indicates * whether DCBx is managed by firmware or host diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 4549591..812c954 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -143,6 +143,7 @@ static struct i40e_stats i40e_gstrings_stats[] = { I40E_PF_STAT("rx_oversize", stats.rx_oversize), I40E_PF_STAT("rx_jabber", stats.rx_jabber), I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests), + I40E_PF_STAT("arq_overflows", arq_overflows), I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt), I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match), diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 320b049..7323e32 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -6248,6 +6248,7 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf) if (hw->debug_mask & I40E_DEBUG_AQ) dev_info(&pf->pdev->dev, "ARQ Overflow Error detected\n"); val &= ~I40E_PF_ARQLEN_ARQOVFL_MASK; + pf->arq_overflows++; } if (val & I40E_PF_ARQLEN_ARQCRIT_MASK) { if (hw->debug_mask & I40E_DEBUG_AQ) |