From: Ethan Zhao <ethan.kernel@gmail.com>
To: jeffrey.t.kirsher@intel.com, jesse.brandeburg@intel.com,
bruce.w.allan@intel.com, carolyn.wyborny@intel.com,
davem@davemloft.net
Cc: e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org,
Ethan Zhao <ethan.kernel@gmail.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] ixgbe: set driver_max_VFs should be done before enabling SRIOV
Date: Wed, 25 Dec 2013 00:07:31 +0800 [thread overview]
Message-ID: <1387901251-1672-1-git-send-email-ethan.kernel@gmail.com> (raw)
commit 43dc4e01 Limit number of reported VFs to device specific value
It doesn't work and always returns -EBUSY because VFs ware 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().
Signed-off-by: Ethan Zhao <ethan.kernel@gmail.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 47e9b44..bfc8e94 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7639,8 +7639,8 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Mailbox */
ixgbe_init_mbx_params_pf(hw);
memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops));
- ixgbe_enable_sriov(adapter);
pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT);
+ ixgbe_enable_sriov(adapter);
skip_sriov:
#endif
--
1.8.3.4 (Apple Git-47)
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next reply other threads:[~2013-12-24 16:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-24 16:07 Ethan Zhao [this message]
2013-12-27 9:03 ` [PATCH 2/2] ixgbe: set driver_max_VFs should be done before enabling SRIOV Jeff Kirsher
-- strict thread matches above, loose matches on Subject: below --
2014-01-15 14:15 Ethan Zhao
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