From e433ea1fb03c10debf101019668b83abed041c24 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Thu, 13 May 2010 17:33:00 +0000 Subject: [PATCH] ixgbe: fix setting of promisc mode when using mac-vlans Introduce uc_set_promisc flag to fix enabling of promisc mode when exceeding the number of supported RAR entries. Issue discovered by Ben Greear when using mac-vlans. Reported-by: Ben Greear Signed-off-by: Emil Tantilov Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_common.c | 5 ++++- drivers/net/ixgbe/ixgbe_main.c | 6 +++--- drivers/net/ixgbe/ixgbe_type.h | 1 + 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c index 6eb5814ca7da..753f2ab39d7f 100644 --- a/drivers/net/ixgbe/ixgbe_common.c +++ b/drivers/net/ixgbe/ixgbe_common.c @@ -1392,14 +1392,17 @@ s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); fctrl |= IXGBE_FCTRL_UPE; IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); + hw->addr_ctrl.uc_set_promisc = true; } } else { /* only disable if set by overflow, not by user */ - if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) { + if ((old_promisc_setting && hw->addr_ctrl.uc_set_promisc) && + !(hw->addr_ctrl.user_set_promisc)) { hw_dbg(hw, " Leaving address overflow promisc mode\n"); fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); fctrl &= ~IXGBE_FCTRL_UPE; IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); + hw->addr_ctrl.uc_set_promisc = false; } } diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index d1a1868df817..15032c79e003 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2952,7 +2952,7 @@ void ixgbe_set_rx_mode(struct net_device *netdev) fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); if (netdev->flags & IFF_PROMISC) { - hw->addr_ctrl.user_set_promisc = 1; + hw->addr_ctrl.user_set_promisc = true; fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); /* don't hardware filter vlans in promisc mode */ ixgbe_vlan_filter_disable(adapter); @@ -2960,11 +2960,11 @@ void ixgbe_set_rx_mode(struct net_device *netdev) if (netdev->flags & IFF_ALLMULTI) { fctrl |= IXGBE_FCTRL_MPE; fctrl &= ~IXGBE_FCTRL_UPE; - } else { + } else if (!hw->addr_ctrl.uc_set_promisc) { fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); } ixgbe_vlan_filter_enable(adapter); - hw->addr_ctrl.user_set_promisc = 0; + hw->addr_ctrl.user_set_promisc = false; } IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 4277cbbb8126..8fc59ac3c0e8 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -2268,6 +2268,7 @@ struct ixgbe_addr_filter_info { u32 mc_addr_in_rar_count; u32 mta_in_use; u32 overflow_promisc; + bool uc_set_promisc; bool user_set_promisc; };