netdev - [PATCH net v2 4/5] i40e: Fix pre-set max number of queues for VF

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Date:   Mon,  6 Dec 2021 10:35:18 -0800
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     Mateusz Palczewski <mateusz.palczewski@...el.com>,
        netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
        sassmann@...hat.com,
        Grzegorz Szczurek <grzegorzx.szczurek@...el.com>,
        Bindushree P <Bindushree.p@...el.com>
Subject: [PATCH net v2 4/5] i40e: Fix pre-set max number of queues for VF

From: Mateusz Palczewski <mateusz.palczewski@...el.com>

After setting pre-set combined to 16 queues and reserving 16 queues by
tc qdisc, pre-set maximum combined queues returned to default value
after VF reset being 4 and this generated errors during removing tc.
Fixed by removing clear num_req_queues before reset VF.

Fixes: e284fc280473 (i40e: Add and delete cloud filter)
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@...el.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@...el.com>
Tested-by: Bindushree P <Bindushree.p@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index f651861442c2..2ea4deb8fc44 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -3823,11 +3823,6 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
 
 	/* set this flag only after making sure all inputs are sane */
 	vf->adq_enabled = true;
-	/* num_req_queues is set when user changes number of queues via ethtool
-	 * and this causes issue for default VSI(which depends on this variable)
-	 * when ADq is enabled, hence reset it.
-	 */
-	vf->num_req_queues = 0;
 
 	/* reset the VF in order to allocate resources */
 	i40e_vc_reset_vf(vf, true);
-- 
2.31.1