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ixgbe: fix setting of promisc mode when using mac-vlans

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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 <greearb@candelatech.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Emil Tantilov 2010-05-13 17:33:00 +00:00 committed by David S. Miller
parent e7874c996b
commit e433ea1fb0
3 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ixgbe/ixgbe_common.c
View File

@ -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;
}
}

6
drivers/net/ixgbe/ixgbe_main.c
View File

@ -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);

1
drivers/net/ixgbe/ixgbe_type.h
View File

@ -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;
};