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i40e: disable buggy VEB switching

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Disable VEB switching by removing ALLOW_LB on SRIOV vsi.

If the source mac address of packet sent from VF is not listed in the
VEB's mac table, the VEB will switch the packet back to the VF.
It's a hardware issue. Enabling ALLOW_LB flag will block VF functions.

Test report: http://www.dpdk.org/ml/archives/dev/2015-March/015687.html

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Tested-by: Huilong Xu <huilongx.xu@intel.com>
This commit is contained in:
Jingjing Wu 2015-03-20 15:31:48 +08:00 committed by Thomas Monjalon
parent 891121d891
commit 8a4a11ce4c
1 changed files with 9 additions and 5 deletions
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14
lib/librte_pmd_i40e/i40e_ethdev.c
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@ -3059,11 +3059,15 @@ i40e_vsi_setup(struct i40e_pf *pf,
ctxt.connection_type = 0x1;
ctxt.flags = I40E_AQ_VSI_TYPE_VF;
/* Configure switch ID */
ctxt.info.valid_sections |=
rte_cpu_to_le_16(I40E_AQ_VSI_PROP_SWITCH_VALID);
ctxt.info.switch_id =
rte_cpu_to_le_16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
/**
* Do not configure switch ID to enable VEB switch by
* I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB. Because in Fortville,
* if the source mac address of packet sent from VF is not
* listed in the VEB's mac table, the VEB will switch the
* packet back to the VF. Need to enable it when HW issue
* is fixed.
*/
/* Configure port/vlan */
ctxt.info.valid_sections |=
rte_cpu_to_le_16(I40E_AQ_VSI_PROP_VLAN_VALID);