From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next-2.6 PATCH 13/23] igb: change queue ordering for 82576 based adapters Date: Wed, 28 Oct 2009 02:49:40 -0700 Message-ID: <20091028094939.13156.75956.stgit@localhost.localdomain> References: <20091028094540.13156.2637.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, gospo@redhat.com, Alexander Duyck , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta05.westchester.pa.mail.comcast.net ([76.96.62.48]:47389 "EHLO QMTA05.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751499AbZJ1JxZ (ORCPT ); Wed, 28 Oct 2009 05:53:25 -0400 In-Reply-To: <20091028094540.13156.2637.stgit@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: From: Alexander Duyck 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 --- drivers/net/igb/igb_main.c | 25 +++++++++++++------------ 1 files changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index e67ff0e..52c4302 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; } }