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i40e: Update VEB's enabled_tc after reconfiguration 

When the port TC configuration changes as a result of DCBx the driver
modifies the enabled TCs for the VEBs it manages. But, in the process
it did not update the enabled_tc value that it caches on a per VEB basis.

So, when the next reconfiguration event occurs where the number of TC
value is same as the value cached in enabled_tc for a given VEB; driver
does not modify it's TC configuration by calling appropriate AQ command
believing it is running with the same configuration as requested.
Now, as the VEB is not actually enabled for the TCs that are there any
TC configuration command for VSI attached to that VEB with TCs that are
not enabled for the VEB fails.

This patch fixes this issue.

Change-ID: Ife5694469b05494228e0d850429ea1734738cf29
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-By: Jack Morgan <jack.morgan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Neerav Parikh 2014-11-12 00:18:41 +00:00 committed by Jeff Kirsher
parent e1c4751ee2
commit 23cd1f095a
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -8279,6 +8279,7 @@ static int i40e_veb_get_bw_info(struct i40e_veb *veb)
veb->bw_limit = le16_to_cpu(ets_data.port_bw_limit);
veb->bw_max_quanta = ets_data.tc_bw_max;
veb->is_abs_credits = bw_data.absolute_credits_enable;
veb->enabled_tc = ets_data.tc_valid_bits;
tc_bw_max = le16_to_cpu(bw_data.tc_bw_max[0]) |
(le16_to_cpu(bw_data.tc_bw_max[1]) << 16);
for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {