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Commit 0c339bf9 authored by Emil Tantilov's avatar Emil Tantilov Committed by Jeff Kirsher
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ixgbe: reset before SRIOV init to avoid mailbox issues 



Enabling SRIOV while the ixgbevf driver is loaded will result in all
mailbox requests from ixgbevf_open() being rejected by ixgbe because
adapter->clear_to_send is set to false on reset.

Call ixgbe_sriov_reinit() before pci_enable_sriov() to make sure that
mailbox requests are handled from the time ixgbevf is loaded.

Reported-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent e24fcf28

drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c

+3 −1
Original line number Diff line number Diff line
@@ -329,13 +329,15 @@ static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 
	for (i = 0; i < adapter->num_vfs; i++)

		ixgbe_vf_configuration(dev, (i | 0x10000000));



	/* reset before enabling SRIOV to avoid mailbox issues */

	ixgbe_sriov_reinit(adapter);



	err = pci_enable_sriov(dev, num_vfs);

	if (err) {

		e_dev_warn("Failed to enable PCI sriov: %d\n", err);

		return err;

	}

	ixgbe_get_vfs(adapter);

	ixgbe_sriov_reinit(adapter);



	return num_vfs;

#else