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ixgbe: dcb: use DCB config values for FCoE traffic class on open

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Disabling and enabling DCB can cause FCoE hardware initialization to
occur on the incorrect traffic class when the up2tc mapping has not
yet been reconfigured.

Fix this by using the DCB configuration maps that are correct
and will be pushed at mqprio after DCB driver setup completes
successfully.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
John Fastabend 2012-02-11 06:26:00 +00:00 committed by Jeff Kirsher
parent d2f5e7f3af
commit cdf485be3a
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -4391,11 +4391,13 @@ static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter)
* configuration later.
*/
if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
u8 prio_tc[MAX_USER_PRIORITY] = {0};
int tc;
struct ixgbe_ring_feature *f =
&adapter->ring_feature[RING_F_FCOE];
tc = netdev_get_prio_tc_map(dev, adapter->fcoe.up);
ixgbe_dcb_unpack_map(&adapter->dcb_cfg, DCB_TX_CONFIG, prio_tc);
tc = prio_tc[adapter->fcoe.up];
f->indices = dev->tc_to_txq[tc].count;
f->mask = dev->tc_to_txq[tc].offset;
}