netdev - [net 1/4] e1000: unset IFF_UNICAST

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 30 Oct 2014 05:33:53 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Francesco Ruggeri <fruggeri@...stanetworks.com>,
	netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
	jogreene@...hat.com, Francesco Ruggeri <fruggeri@...sta.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net 1/4] e1000: unset IFF_UNICAST_FLT on WMware 82545EM

From: Francesco Ruggeri <fruggeri@...stanetworks.com>

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@...sta.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.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);
 
-- 
1.9.3

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html