!25 fix ATR queue selection

From: @gebidelidaye
Reviewed-by: @wangxp006
Signed-off-by: @wangxp006

backport-fix-ATR-queue-selection.patch

@@ -0,0 +1,53 @@
+From a222be597e316389f9f8c26033352c124ce93056 Mon Sep 17 00:00:00 2001
+From: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
+Date: Wed, 18 Aug 2021 10:42:16 -0700
+Subject: i40e: Fix ATR queue selection
+
+Without this patch, ATR does not work. Receive/transmit uses queue
+selection based on SW DCB hashing method. 
+
+If traffic classes are not configured for PF, then use
+netdev_pick_tx function for selecting queue for packet transmission.
+Instead of calling i40e_swdcb_skb_tx_hash, call netdev_pick_tx,
+which ensures that packet is transmitted/received from CPU that is 
+running the application.
+
+Reproduction steps:
+1. Load i40e driver
+2. Map each MSI interrupt of i40e port for each CPU
+3. Disable ntuple, enable ATR i.e.:
+ethtool -K $interface ntuple off
+ethtool --set-priv-flags $interface flow-director-atr
+4. Run application that is generating traffic and is bound to a
+single CPU, i.e.:
+taskset -c 9 netperf -H 1.1.1.1 -t TCP_RR -l 10
+5. Observe behavior:
+Application's traffic should be restricted to the CPU provided in
+taskset.
+Fixes: 89ec1f0886c1 ("i40e: Fix queue-to-TC mapping on Tx")
+Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
+Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
+Tested-by: Dave Switzer <david.switzer@intel.com>
+Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ src/i40e_txrx.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/src/i40e_txrx.c b/src/i40e_txrx.c
+index 0ca5a17..8236cde 100644
+--- a/src/i40e_txrx.c
++++ b/src/i40e_txrx.c
+@@ -4189,8 +4189,7 @@ u16 i40e_lan_select_queue(struct net_device *netdev,
+ 
+ 	/* is DCB enabled at all? */
+ 	if (vsi->tc_config.numtc == 1)
+-		return i40e_swdcb_skb_tx_hash(netdev, skb,
+-					      netdev->real_num_tx_queues);
++		return netdev_pick_tx(netdev, skb, sb_dev);
+ 
+ 	prio = skb->priority;
+ 	hw = &vsi->back->hw;
+-- 
+1.8.3.1
+

i40e.spec

@@ -9,7 +9,7 @@
 Name: i40e
 Summary: Intel(R) 40-10 Gigabit Ethernet Connection Network Driver
 Version: 2.14.13
-Release: 6
+Release: 7
 Vendor: Intel Corporation
 License: GPL-2.0
 URL: http://support.intel.com
@@ -18,6 +18,7 @@ Source0: https://downloadcenter.intel.com/download/24411/Intel-Network-Adapter-D
 Patch0001: fix-gcc9-new-warning.patch
 
 Patch6000: backport-extend-coalesce-setting-uAPI-with-CQE-mode.patch
+Patch6001: backport-fix-ATR-queue-selection.patch
 
 Requires: kernel, findutils, gawk, bash, hwdata
 
@@ -385,6 +386,12 @@ else
 fi
 
 %changelog
+* Thu Nov 4 2021 Aichun Li <liaichun@huawei.com> - 2.14.13-7
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix ATR queue selection
+
 * Thu Sep 16 2021 xihaochen<xihaochen@huawei.com> - 2.14.13-6
 - Type:bugfix
 - ID:NA