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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>
This commit is contained in:
Alexander Duyck 2008-08-26 04:25:03 -07:00 committed by Jeff Garzik
parent a866bbf6aa
commit 7a6ea550f2
1 changed files with 9 additions and 1 deletions
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10
drivers/net/igb/igb_main.c
View File

@ -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;