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authorChris Leech <christopher.leech@intel.com>2010-03-24 13:45:21 +0100
committerDavid S. Miller <davem@davemloft.net>2010-03-26 19:56:04 +0100
commitaf06393bbde6e8d474622a0517cffc662676e3fe (patch)
treeabbb33f645a67280ef6b4bec1af619f36e90d6b0 /drivers/net/ixgbe/ixgbe_fcoe.c
parentixgbe: Priority tag FIP frames (diff)
downloadlinux-af06393bbde6e8d474622a0517cffc662676e3fe.tar.xz
linux-af06393bbde6e8d474622a0517cffc662676e3fe.zip
ixgbe: filter FIP frames into the FCoE offload queues
During FCF solicitation, the switch is supposed to pad the solicited advertisement out to the endpoints specified maximum FCoE frame size. That means that we need to receive FIP frames that are larger than the standard MTU. To make sure the receive queue is configured correctly, we should be filtering FIP traffic into the FCoE queues. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_fcoe.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_fcoe.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c
index e1978da49e5b..9276d5965b0d 100644
--- a/drivers/net/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ixgbe/ixgbe_fcoe.c
@@ -522,6 +522,9 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
/* 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));
+ /* Enable L2 eth type filter for FIP */
+ IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FIP),
+ (ETH_P_FIP | IXGBE_ETQF_FILTER_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++) {
@@ -532,6 +535,12 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
}
IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, IXGBE_FCRECTL_ENA);
IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0);
+ fcoe_i = f->mask;
+ fcoe_i &= IXGBE_FCRETA_ENTRY_MASK;
+ fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx;
+ IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FIP),
+ IXGBE_ETQS_QUEUE_EN |
+ (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT));
} else {
/* Use single rx queue for FCoE */
fcoe_i = f->mask;
@@ -541,6 +550,12 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
IXGBE_ETQS_QUEUE_EN |
(fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT));
}
+ /* send FIP frames to the first FCoE queue */
+ fcoe_i = f->mask;
+ fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx;
+ IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FIP),
+ IXGBE_ETQS_QUEUE_EN |
+ (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT));
IXGBE_WRITE_REG(hw, IXGBE_FCRXCTRL,
IXGBE_FCRXCTRL_FCOELLI |