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igb: change queue ordering for 82576 based adapters

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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 <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-10-27 23:49:40 +00:00 committed by David S. Miller
parent 439705e1d7
commit ee1b9f06dc
1 changed files with 13 additions and 12 deletions
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21
drivers/net/igb/igb_main.c
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@ -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++)
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 (i = 0; i < adapter->num_tx_queues; i++)
adapter->tx_ring[i].reg_idx = rbase_offset +
Q_IDX_82576(i);
break;
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;
}
}