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ixgbe: reset before SRIOV init to avoid mailbox issues

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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: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@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:
Emil Tantilov
2016-09-09 12:59:10 -07:00
committed by Jeff Kirsher
parent e24fcf2895
commit 0c339bf9ac
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
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@@ -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