From ee1b9f06dca9c406b159904e9b13ea2dfa5ed037 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 27 Oct 2009 23:49:40 +0000 Subject: [PATCH] igb: change queue ordering for 82576 based adapters This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/igb_main.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index e67ff0ea2a56..52c43021c13d 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -285,7 +285,7 @@ module_exit(igb_exit_module); **/ static void igb_cache_ring_register(struct igb_adapter *adapter) { - int i; + int i = 0, j = 0; u32 rbase_offset = adapter->vfs_allocated_count; switch (adapter->hw.mac.type) { @@ -295,19 +295,20 @@ static void igb_cache_ring_register(struct igb_adapter *adapter) * In order to avoid collision we start at the first free queue * and continue consuming queues in the same sequence */ - for (i = 0; i < adapter->num_rx_queues; i++) - adapter->rx_ring[i].reg_idx = rbase_offset + - Q_IDX_82576(i); - for (i = 0; i < adapter->num_tx_queues; i++) - adapter->tx_ring[i].reg_idx = rbase_offset + - Q_IDX_82576(i); - break; + if (adapter->vfs_allocated_count) { + for (; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i].reg_idx = rbase_offset + + Q_IDX_82576(i); + for (; j < adapter->num_tx_queues; j++) + adapter->tx_ring[j].reg_idx = rbase_offset + + Q_IDX_82576(j); + } case e1000_82575: default: - for (i = 0; i < adapter->num_rx_queues; i++) - adapter->rx_ring[i].reg_idx = i; - for (i = 0; i < adapter->num_tx_queues; i++) - adapter->tx_ring[i].reg_idx = i; + for (; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i].reg_idx = rbase_offset + i; + for (; j < adapter->num_tx_queues; j++) + adapter->tx_ring[j].reg_idx = rbase_offset + j; break; } } -- 2.30.2