diff mbox

[net-next,4/5] igb: rework igb_set_multi so that vfs are properly updated

Message ID 20090320101725.17663.72236.stgit@lost.foo-projects.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Kirsher, Jeffrey T March 20, 2009, 10:17 a.m. UTC 
From: Alexander Duyck <alexander.h.duyck@intel.com>

Currently if there are no multicast addresses programmed into the PF then
the VFs cannot have their multicast filters reset.  This change makes it so
the code path that updates vf multicast is always called along with the pf
updates.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

 drivers/net/igb/igb_main.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)


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Comments

David Miller March 21, 2009, 11:57 p.m. UTC | #1 
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Fri, 20 Mar 2009 03:17:25 -0700

> Currently if there are no multicast addresses programmed into the PF then
> the VFs cannot have their multicast filters reset.  This change makes it so
> the code path that updates vf multicast is always called along with the pf
> updates.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Applied.
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diff mbox

Patch

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3dd3a5a..a977bd7 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2464,7 +2464,7 @@  static void igb_set_multi(struct net_device *netdev)
 	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_mac_info *mac = &hw->mac;
 	struct dev_mc_list *mc_ptr;
-	u8  *mta_list;
+	u8  *mta_list = NULL;
 	u32 rctl;
 	int i;
 
@@ -2485,17 +2485,15 @@  static void igb_set_multi(struct net_device *netdev)
 	}
 	wr32(E1000_RCTL, rctl);
 
-	if (!netdev->mc_count) {
-		/* nothing to program, so clear mc list */
-		igb_update_mc_addr_list(hw, NULL, 0, 1,
-					mac->rar_entry_count);
-		return;
+	if (netdev->mc_count) {
+		mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
+		if (!mta_list) {
+			dev_err(&adapter->pdev->dev,
+			        "failed to allocate multicast filter list\n");
+			return;
+		}
 	}
 
-	mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
-	if (!mta_list)
-		return;
-
 	/* The shared function expects a packed array of only addresses. */
 	mc_ptr = netdev->mc_list;