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ixgbe: Enable FCoE offload when DCB is enabled for 82599

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Currently, FCoE offload feature is turned on when the kernel config has
CONFIG_FCOE or CONFIG_FCOE_MODULE set. However, we really want to turn
FCoE offload on when there is FCoE traffic passing and turn it off when
it's just LAN traffic. Since FCoE depends on a lossless network provided
by DCB, this allows us to have FCoE turned on/off when user turns on DCB
using dcbtool.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@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:
Yi Zou
2009-07-22 14:07:12 +00:00
committed by David S. Miller
parent dacac4da52
commit 0d5515894f
3 changed files with 31 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/net/ixgbe/ixgbe_main.c
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@@ -3806,8 +3806,9 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
adapter->atr_sample_rate = 20;
adapter->fdir_pballoc = 0;
#ifdef IXGBE_FCOE
adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
adapter->ring_feature[RING_F_FCOE].indices = IXGBE_FCRETA_SIZE;
adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
adapter->ring_feature[RING_F_FCOE].indices = 0;
#endif /* IXGBE_FCOE */
}
@@ -5580,16 +5581,11 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
#endif
#ifdef IXGBE_FCOE
if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) {
if (hw->mac.ops.get_device_caps) {
hw->mac.ops.get_device_caps(hw, &device_caps);
if (!(device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS)) {
netdev->features |= NETIF_F_FCOE_CRC;
netdev->features |= NETIF_F_FSO;
netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
} else {
adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
}
if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS)
adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE;
}
}
#endif /* IXGBE_FCOE */