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 v2 12/14] sfc: do not allow VFs to be destroyed if assigned to guests
Date: Mon, 1 Jun 2015 14:03:20 +0100 [thread overview]
Message-ID: <556C5818.2030409@solarflare.com> (raw)
In-Reply-To: <556C5704.4060901@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:[~2015-06-01 13:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-01 12:58 [PATCH net-next v2 00/14] sfc: ndo_get_phys_port_id, vadaptor stats and PF unload when Vf's assigned to guest Shradha Shah
2015-06-01 13:00 ` [PATCH net-next v2 01/14] sfc: Add code to export port_num in netdev->dev_port Shradha Shah
2015-06-01 19:01 ` David Miller
2015-06-02 9:14 ` Shradha Shah
2015-06-01 13:00 ` [PATCH net-next v2 02/14] sfc: Add sysfs entry for flags (link control and primary) Shradha Shah
2015-06-01 13:01 ` [PATCH net-next v2 03/14] sfc: Implement ndo_gets_phys_port_id() for EF10 VFs Shradha Shah
2015-06-01 13:01 ` [PATCH net-next v2 04/14] sfc: add "port_" prefix to MAC stats Shradha Shah
2015-06-01 13:01 ` [PATCH net-next v2 05/14] sfc: set the port-id when calling MC_CMD_MAC_STATS Shradha Shah
2015-06-01 13:01 ` [PATCH net-next v2 06/14] sfc: display vadaptor statistics for all interfaces Shradha Shah
2015-06-01 13:02 ` [PATCH net-next v2 07/14] sfc: DMA the VF stats only when requested Shradha Shah
2015-06-01 13:02 ` [PATCH net-next v2 08/14] sfc: update netdevice statistics to use vadaptor stats Shradha Shah
2015-06-01 13:02 ` [PATCH net-next v2 09/14] sfc: suppress ENOENT error messages from MC_CMD_MAC_STATS Shradha Shah
2015-06-01 13:02 ` [PATCH net-next v2 10/14] sfc: suppress vadaptor stats when EVB is not present Shradha Shah
2015-06-01 13:03 ` [PATCH net-next v2 11/14] sfc: don't update stats on VF when called in atomic context Shradha Shah
2015-06-01 13:03 ` Shradha Shah [this message]
2015-06-01 13:03 ` [PATCH net-next v2 13/14] sfc: force removal of VF and vport on driver removal Shradha Shah
2015-06-01 13:03 ` [PATCH net-next v2 14/14] sfc: leak vports if a VF is assigned during PF unload Shradha Shah
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=556C5818.2030409@solarflare.com \
--to=sshah@solarflare.com \
--cc=davem@davemloft.net \
--cc=linux-net-drivers@solarflare.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).