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* [PATCH 1/1] e1000: unset IFF_UNICAST_FLT on WMware 82545EM
@ 2014-10-20 22:11 Francesco Ruggeri
  2014-10-20 22:25 ` [linux-nics] " Jeff Kirsher
  0 siblings, 1 reply; 2+ messages in thread
From: Francesco Ruggeri @ 2014-10-20 22:11 UTC (permalink / raw)
  To: netdev; +Cc: linux-kernel, davem, pv-drivers, linux.nics, fruggeri, e1000-devel

VMWare's e1000 implementation does not seem to support unicast filtering.
This can be observed by configuring a macvlan interface on eth0 in a VM in
VMWare Fusion 5.0.5, and trying to use that interface instead of eth0.
Tested on 3.16.

Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
---
 drivers/net/ethernet/intel/e1000/e1000_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 5f6aded..24f3986 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -1075,7 +1075,10 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 				  NETIF_F_HW_CSUM |
 				  NETIF_F_SG);
 
-	netdev->priv_flags |= IFF_UNICAST_FLT;
+	/* Do not set IFF_UNICAST_FLT for VMWare's 82545EM */
+	if (hw->device_id != E1000_DEV_ID_82545EM_COPPER ||
+	    hw->subsystem_vendor_id != PCI_VENDOR_ID_VMWARE)
+		netdev->priv_flags |= IFF_UNICAST_FLT;
 
 	adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
 
-- 
1.8.1.4

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [linux-nics] [PATCH 1/1] e1000: unset IFF_UNICAST_FLT on WMware 82545EM
  2014-10-20 22:11 [PATCH 1/1] e1000: unset IFF_UNICAST_FLT on WMware 82545EM Francesco Ruggeri
@ 2014-10-20 22:25 ` Jeff Kirsher
  0 siblings, 0 replies; 2+ messages in thread
From: Jeff Kirsher @ 2014-10-20 22:25 UTC (permalink / raw)
  To: Francesco Ruggeri
  Cc: netdev, linux.nics, pv-drivers, fruggeri, linux-kernel,
	e1000-devel, davem

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On Mon, 2014-10-20 at 15:11 -0700, Francesco Ruggeri wrote:
> VMWare's e1000 implementation does not seem to support unicast
> filtering.
> This can be observed by configuring a macvlan interface on eth0 in a
> VM in
> VMWare Fusion 5.0.5, and trying to use that interface instead of eth0.
> Tested on 3.16.
> 
> Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
> ---
>  drivers/net/ethernet/intel/e1000/e1000_main.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Thanks Francesco, I will add your patch to my queue.

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^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-10-20 22:11 [PATCH 1/1] e1000: unset IFF_UNICAST_FLT on WMware 82545EM Francesco Ruggeri
2014-10-20 22:25 ` [linux-nics] " Jeff Kirsher

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