diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 841e49e1e091..12d7191c936a 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -15290,6 +15290,14 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) i40e_stat_str(&pf->hw, err), i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); + /* make sure the MFS hasn't been set lower than the default */ +#define MAX_FRAME_SIZE_DEFAULT 0x2600 + val = (rd32(&pf->hw, I40E_PRTGL_SAH) & + I40E_PRTGL_SAH_MFS_MASK) >> I40E_PRTGL_SAH_MFS_SHIFT; + if (val < MAX_FRAME_SIZE_DEFAULT) + dev_warn(&pdev->dev, "MFS for port %x has been set below the default: %x\n", + i, val); + /* Add a filter to drop all Flow control frames from any VSI from being * transmitted. By doing so we stop a malicious VF from sending out * PAUSE or PFC frames and potentially controlling traffic for other |