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i40e: Prevent deleting MAC address from VF when set by PF

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[ Upstream commit 5907cf6c5b ]

To prevent VF from deleting MAC address that was assigned by the
PF we need to check for that scenario when we try to delete a MAC
address from a VF.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Patryk Małek
2018-08-28 10:16:09 -07:00
committed by Greg Kroah-Hartman
parent 0d4ee36426
commit 23580e8d8d
1 changed files with 10 additions and 0 deletions
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10
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@@ -2000,6 +2000,16 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
ret = I40E_ERR_INVALID_MAC_ADDR;
goto error_param;
}
if (vf->pf_set_mac &&
ether_addr_equal(al->list[i].addr,
vf->default_lan_addr.addr)) {
dev_err(&pf->pdev->dev,
"MAC addr %pM has been set by PF, cannot delete it for VF %d, reset VF to change MAC addr\n",
vf->default_lan_addr.addr, vf->vf_id);
ret = I40E_ERR_PARAM;
goto error_param;
}
}
vsi = pf->vsi[vf->lan_vsi_idx];