From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Wed, 23 Feb 2022 09:53:47 -0800
Subject: Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
Patch-mainline: v5.17-rc6
Git-commit: fe20371578ef640069e6ae9fa8038f60e7908565
References: git-fixes
Revert of a patch that instead of fixing a AQ error when trying
to reset BW limit introduced several regressions related to
creation and managing TC. Currently there are errors when creating
a TC on both PF and VF.
Error log:
[17428.783095] i40e 0000:3b:00.1: AQ command Config VSI BW allocation per TC failed = 14
[17428.783107] i40e 0000:3b:00.1: Failed configuring TC map 0 for VSI 391
[17428.783254] i40e 0000:3b:00.1: AQ command Config VSI BW allocation per TC failed = 14
[17428.783259] i40e 0000:3b:00.1: Unable to configure TC map 0 for VSI 391
This reverts commit 3d2504663c41104b4359a15f35670cfa82de1bbf.
Fixes: 3d2504663c41 (i40e: Fix reset bw limit when DCB enabled with 1 TC)
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220223175347.1690692-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5372,15 +5372,7 @@ static int i40e_vsi_configure_bw_alloc(s
/* There is no need to reset BW when mqprio mode is on. */
if (pf->flags & I40E_FLAG_TC_MQPRIO)
return 0;
-
- if (!vsi->mqprio_qopt.qopt.hw) {
- if (pf->flags & I40E_FLAG_DCB_ENABLED)
- goto skip_reset;
-
- if (IS_ENABLED(CONFIG_I40E_DCB) &&
- i40e_dcb_hw_get_num_tc(&pf->hw) == 1)
- goto skip_reset;
-
+ if (!vsi->mqprio_qopt.qopt.hw && !(pf->flags & I40E_FLAG_DCB_ENABLED)) {
ret = i40e_set_bw_limit(vsi, vsi->seid, 0);
if (ret)
dev_info(&pf->pdev->dev,
@@ -5388,8 +5380,6 @@ static int i40e_vsi_configure_bw_alloc(s
vsi->seid);
return ret;
}
-
-skip_reset:
memset(&bw_data, 0, sizeof(bw_data));
bw_data.tc_valid_bits = enabled_tc;
for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)