linux/drivers/net/ethernet/intel
ethan.zhao 31ac910e10 ixgbe: set driver_max_VFs should be done before enabling SRIOV
commit 43dc4e01 Limit number of reported VFs to device
 specific value It doesn't work and always returns -EBUSY because VFs are
 already enabled.

ixgbe_enable_sriov()
        pci_enable_sriov()
                sriov_enable()
                {
                ... ..
                iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
                pci_cfg_access_lock(dev);
                ... ...
                }

pci_sriov_set_totalvfs()
{
... ...
if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE)
                return -EBUSY;
...
}

So should set driver_max_VFs with pci_sriov_set_totalvfs() before
enable VFs with ixgbe_enable_sriov().

V2: revised for net-next tree.

Signed-off-by: Ethan Zhao <ethan.kernel@gmail.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17 18:37:31 -08:00
..
e1000 drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
e1000e Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
i40e i40e: updates to AdminQ interface 2014-01-16 17:20:51 -08:00
i40evf i40evf: fix s390 build failure due to implicit prefetch.h 2014-01-10 16:41:18 -08:00
igb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-12-18 16:42:06 -05:00
igbvf net: igbvf: slight optimization of addr compare 2013-12-31 16:48:31 -05:00
ixgb drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
ixgbe ixgbe: set driver_max_VFs should be done before enabling SRIOV 2014-01-17 18:37:31 -08:00
ixgbevf ixgbevf: create function for all of ring init 2014-01-16 15:34:25 -08:00
e100.c net: e100: remove unnecessary pci_set_drvdata() 2013-10-21 17:21:01 -04:00
Kconfig i40e: enable PTP 2014-01-10 16:33:39 -08:00
Makefile i40evf: add driver to kernel build system 2013-12-31 16:27:49 -08:00