diff options
| author | Dave Ertman <david.m.ertman@intel.com> | 2017-12-27 08:18:21 -0500 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-01-26 13:23:19 -0800 |
| commit | c61c8fe1d592552c34b189963036efbf68b93940 (patch) | |
| tree | 5a0a2205a2d8423144d9ab02d1121c4ddab3dbcd /drivers/net/ethernet/intel/i40e/i40e_main.c | |
| parent | 60f481b9703867330dc6010868054f68f6d52f7a (diff) | |
i40e: Implement an ethtool private flag to stop LLDP in FW
Implement the private flag disable-fw-lldp for ethtool
to disable the processing of LLDP packets by the FW.
This will stop the FW from consuming LLDPDU and cause
them to be sent up the stack.
The FW is also being configured to apply a default DCB
configuration on link up.
Toggling the value of this flag will also cause a PF reset.
Disabling FW DCB will also disable DCBx.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 2703a92f3778..fdeaeb9d44e2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -6320,8 +6320,11 @@ static int i40e_init_pf_dcb(struct i40e_pf *pf) struct i40e_hw *hw = &pf->hw; int err = 0; - /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */ - if (pf->hw_features & I40E_HW_NO_DCB_SUPPORT) + /* Do not enable DCB for SW1 and SW2 images even if the FW is capable + * Also do not enable DCBx if FW LLDP agent is disabled + */ + if ((pf->hw_features & I40E_HW_NO_DCB_SUPPORT) || + (pf->flags & I40E_FLAG_DISABLE_FW_LLDP)) goto out; /* Get the initial DCB configuration */ @@ -9221,6 +9224,9 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired) goto end_core_reset; } + /* Enable FW to write a default DCB config on link-up */ + i40e_aq_set_dcb_parameters(hw, true, NULL); + #ifdef CONFIG_I40E_DCB ret = i40e_init_pf_dcb(pf); if (ret) { @@ -13543,6 +13549,10 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, pf); pci_save_state(pdev); + + /* Enable FW to write default DCB config on link-up */ + i40e_aq_set_dcb_parameters(hw, true, NULL); + #ifdef CONFIG_I40E_DCB err = i40e_init_pf_dcb(pf); if (err) { |