[Intel-wired-lan] [PATCH net v1] i40e: Fix calculating the number of queue pairs

[Intel-wired-lan] [PATCH net v1] i40e: Fix calculating the number of queue pairs

[Jedzej Jagielski]

From: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>

If ADq is enabled for a VF, then actual number of queue pair
is a number of currently available traffic classes for this VF.

Without this change the configuration of the rx/tx queues
fails with error.

Fixes: d29e0d233e0d ("i40e: missing input validation on VF message handling by the PF")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 2606e8f0f19b..033ea71763e3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2282,7 +2282,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 	}
 
 	if (vf->adq_enabled) {
-		for (i = 0; i < I40E_MAX_VF_VSI; i++)
+		for (i = 0; i < vf->num_tc; i++)
 			num_qps_all += vf->ch[i].num_qps;
 		if (num_qps_all != qci->num_queue_pairs) {
 			aq_ret = I40E_ERR_PARAM;
-- 
2.27.0

[Intel-wired-lan] [PATCH net v1] i40e: Fix calculating the number of queue pairs

[Sreenivas, Bharathi]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Jedzej Jagielski
> Sent: Friday, April 29, 2022 6:10 PM
> To: intel-wired-lan at lists.osuosl.org
> Cc: Jagielski, Jedrzej <jedrzej.jagielski@intel.com>
> Subject: [Intel-wired-lan] [PATCH net v1] i40e: Fix calculating the number of
> queue pairs
> 
> From: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
> 
> If ADq is enabled for a VF, then actual number of queue pair is a number of
> currently available traffic classes for this VF.
> 
> Without this change the configuration of the rx/tx queues fails with error.
> 
> Fixes: d29e0d233e0d ("i40e: missing input validation on VF message handling
> by the PF")
> Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
Tested-by: Bharathi Sreenivas<bharathi.sreenivas@intel.com>