From: Shradha Shah <sshah@solarflare.com>
To: David Miller <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-net-drivers@solarflare.com>
Subject: [PATCH net-next 12/14] sfc: do not allow VFs to be destroyed if assigned to guests
Date: Fri, 29 May 2015 11:03:18 +0100 [thread overview]
Message-ID: <55683966.5090103@solarflare.com> (raw)
In-Reply-To: <55683895.2090408@solarflare.com>
From: Daniel Pieczko <dpieczko@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
---
drivers/net/ethernet/sfc/ef10_sriov.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c
index cd52454..083c534 100644
--- a/drivers/net/ethernet/sfc/ef10_sriov.c
+++ b/drivers/net/ethernet/sfc/ef10_sriov.c
@@ -417,6 +417,15 @@ static int efx_ef10_pci_sriov_disable(struct efx_nic *efx)
{
struct pci_dev *dev = efx->pci_dev;
+ if (!efx->vf_count)
+ return 0;
+
+ if (pci_vfs_assigned(dev)) {
+ netif_err(efx, drv, efx->net_dev, "VFs are assigned to guests; "
+ "please detach them before disabling SR-IOV\n");
+ return -EBUSY;
+ }
+
pci_disable_sriov(dev);
efx_ef10_sriov_free_vf_vswitching(efx);
efx->vf_count = 0;
next prev parent reply other threads:[~2015-05-29 10:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-29 9:59 [PATCH net-next 00/14] sfc: ndo_get_phys_port_id, vadaptor stats and PF unload when Vf's assigned to guest Shradha Shah
2015-05-29 10:01 ` [PATCH net-next 01/14] sfc: Add sysfs entry for physical port Shradha Shah
2015-06-01 0:32 ` David Miller
2015-05-29 10:01 ` [PATCH net-next 02/14] sfc: Add sysfs entry for flags (link control and primary) Shradha Shah
2015-05-29 10:48 ` David Laight
2015-05-29 13:09 ` Edward Cree
2015-05-29 10:01 ` [PATCH net-next 03/14] sfc: Implement ndo_gets_phys_port_id() for EF10 VFs Shradha Shah
2015-05-29 10:01 ` [PATCH net-next 04/14] sfc: add "port_" prefix to MAC stats Shradha Shah
2015-05-29 10:01 ` [PATCH net-next 05/14] sfc: set the port-id when calling MC_CMD_MAC_STATS Shradha Shah
2015-05-29 10:02 ` [PATCH net-next 06/14] sfc: display vadaptor statistics for all interfaces Shradha Shah
2015-05-29 10:02 ` [PATCH net-next 07/14] sfc: DMA the VF stats only when requested Shradha Shah
2015-05-29 10:02 ` [PATCH net-next 08/14] sfc: update netdevice statistics to use vadaptor stats Shradha Shah
2015-05-29 10:02 ` [PATCH net-next 09/14] sfc: suppress ENOENT error messages from MC_CMD_MAC_STATS Shradha Shah
2015-05-29 10:03 ` [PATCH net-next 11/14] sfc: don't update stats on VF when called in atomic context Shradha Shah
2015-05-29 10:03 ` Shradha Shah [this message]
2015-05-29 10:03 ` [PATCH net-next 13/14] sfc: force removal of VF and vport on driver removal Shradha Shah
2015-05-29 10:03 ` [PATCH net-next 14/14] sfc: leak vports if a VF is assigned during PF unload Shradha Shah
2015-05-29 10:08 ` [PATCH net-next 10/14] sfc: suppress vadaptor stats when EVB is not present Shradha Shah
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