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authorAlexander Duyck <alexander.h.duyck@intel.com>2008-08-26 04:25:03 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-08-27 05:16:27 -0400
commit7a6ea550f2f7592742ac765e5a3b4b5d1461e0bd (patch)
tree4f347f2054987626af467cd2031af5517bf7d81f /drivers/net/igb
parenta866bbf6aacf95f849810079442a20be118ce905 (diff)
igb: force all queues to interrupt once every 2 seconds
Set the EICS bit for each of the RX queues at least once every 2 seconds to prevent the rx queues from stalling. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/igb')
-rw-r--r--drivers/net/igb/igb_main.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 8f66e15ec8d6..465a810b670a 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2290,7 +2290,9 @@ static void igb_watchdog_task(struct work_struct *work)
struct igb_ring *tx_ring = adapter->tx_ring;
struct e1000_mac_info *mac = &adapter->hw.mac;
u32 link;
+ u32 eics = 0;
s32 ret_val;
+ int i;
if ((netif_carrier_ok(netdev)) &&
(rd32(E1000_STATUS) & E1000_STATUS_LU))
@@ -2392,7 +2394,13 @@ link_up:
}
/* Cause software interrupt to ensure rx ring is cleaned */
- wr32(E1000_ICS, E1000_ICS_RXDMT0);
+ if (adapter->msix_entries) {
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ eics |= adapter->rx_ring[i].eims_value;
+ wr32(E1000_EICS, eics);
+ } else {
+ wr32(E1000_ICS, E1000_ICS_RXDMT0);
+ }
/* Force detection of hung controller every watchdog period */
tx_ring->detect_tx_hung = true;