Commit 7a6ea550 authored by Alexander Duyck's avatar Alexander Duyck Committed by Jeff Garzik

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: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent a866bbf6
......@@ -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 @@ static void igb_watchdog_task(struct work_struct *work)
}
/* 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;
......
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