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Date: Tue, 26 Aug 2008 04:25:03 -0700 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: jeff@...zik.org Cc: netdev@...r.kernel.org, davem@...emloft.net, akpm@...ux-foundation.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com>, Alexander Duyck <alexander.h.duyck@...el.com> Subject: [PATCH 1/5] igb: force all queues to interrupt once every 2 seconds From: Alexander Duyck <alexander.h.duyck@...el.com> 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@...el.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com> --- drivers/net/igb/igb_main.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 4b19abb..40a205e 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -2279,7 +2279,9 @@ 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)) @@ -2381,7 +2383,13 @@ 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; -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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