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i40e: change Rx hang message into a WARN_ONCE 

Use WARN_ONCE in order to highlight the issue, but don't display
a warning every time. The user should be able to see the ethtool counter
we created if necessary to see how often it is occurring.

Change-ID: I40c4ea159819b64a7d33b7f5716749089791533a
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jacob Keller 2016-05-03 15:13:15 -07:00 committed by Jeff Kirsher
parent 06566e5dd4
commit c420815d12
1 changed files with 1 additions and 3 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_ptp.c
View File

@ -289,9 +289,7 @@ void i40e_ptp_rx_hang(struct i40e_vsi *vsi)
rd32(hw, I40E_PRTTSYN_RXTIME_H(3));
pf->last_rx_ptp_check = jiffies;
pf->rx_hwtstamp_cleared++;
dev_warn(&vsi->back->pdev->dev,
"%s: clearing Rx timestamp hang\n",
__func__);
WARN_ONCE(1, "Detected Rx timestamp register hang\n");
}
}