From 29ebf6f8c8a99bbda053f1fbdff0570cc5d866b3 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Sun, 17 May 2009 12:34:14 +0000 Subject: ixgbe: Enable FCoE redirection table feature in 82599 Enable using FCoE redirection table feature in 82599. The FCoE redirection table has maximum of eight entries, corresponding to maximum of eight receive queues to be used for distributing incoming FCoE packets. This patch sets up the FCoE redirection table when multiple receive queues are available for FCoE. Signed-off-by: Yi Zou Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_fcoe.c | 28 ++++++++++++++++++++++++---- 1 file changed, 24 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index a11c6207b748..d5939de8ba28 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -482,8 +482,10 @@ int ixgbe_fso(struct ixgbe_adapter *adapter, */ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) { + int i, fcoe_q, fcoe_i; struct ixgbe_hw *hw = &adapter->hw; struct ixgbe_fcoe *fcoe = &adapter->fcoe; + struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; /* create the pool for ddp if not created yet */ if (!fcoe->pool) { @@ -497,12 +499,30 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) spin_lock_init(&fcoe->lock); } - /* L2 filter for FCoE: default to queue 0 */ + + /* Enable L2 eth type filter for FCoE */ IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FCOE), (ETH_P_FCOE | IXGBE_ETQF_FCOE | IXGBE_ETQF_FILTER_EN)); - IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, 0); - IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), - IXGBE_ETQS_QUEUE_EN); + if (adapter->ring_feature[RING_F_FCOE].indices) { + /* Use multiple rx queues for FCoE by redirection table */ + for (i = 0; i < IXGBE_FCRETA_SIZE; i++) { + fcoe_i = f->mask + i % f->indices; + fcoe_i &= IXGBE_FCRETA_ENTRY_MASK; + fcoe_q = adapter->rx_ring[fcoe_i].reg_idx; + IXGBE_WRITE_REG(hw, IXGBE_FCRETA(i), fcoe_q); + } + IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, IXGBE_FCRECTL_ENA); + IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0); + } else { + /* Use single rx queue for FCoE */ + fcoe_i = f->mask; + fcoe_q = adapter->rx_ring[fcoe_i].reg_idx; + IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, 0); + IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), + IXGBE_ETQS_QUEUE_EN | + (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT)); + } + IXGBE_WRITE_REG(hw, IXGBE_FCRXCTRL, IXGBE_FCRXCTRL_FCOELLI | IXGBE_FCRXCTRL_FCCRCBO | -- cgit v1.2.3