linux-kernel - [PATCH 5.15 05/76] i40e: disable NAPI right after disabling irqs when handling xsk

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Message-ID: <20240313164223.615640-6-sashal@kernel.org>
Date: Wed, 13 Mar 2024 12:41:12 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Chandan Kumar Rout <chandanx.rout@...el.com>,
	Magnus Karlsson <magnus.karlsson@...el.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 05/76] i40e: disable NAPI right after disabling irqs when handling xsk_pool

From: Maciej Fijalkowski <maciej.fijalkowski@...el.com>

[ Upstream commit d562b11c1eac7d73f4c778b4cbe5468f86b1f20d ]

Disable NAPI before shutting down queues that this particular NAPI
contains so that the order of actions in i40e_queue_pair_disable()
mirrors what we do in i40e_queue_pair_enable().

Fixes: 123cecd427b6 ("i40e: added queue pair disable/enable functions")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@...el.com> (A Contingent Worker at Intel)
Acked-by: Magnus Karlsson <magnus.karlsson@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 3d2b92a952a65..7b522d55f3684 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -13558,9 +13558,9 @@ int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair)
 		return err;
 
 	i40e_queue_pair_disable_irq(vsi, queue_pair);
+	i40e_queue_pair_toggle_napi(vsi, queue_pair, false /* off */);
 	err = i40e_queue_pair_toggle_rings(vsi, queue_pair, false /* off */);
 	i40e_clean_rx_ring(vsi->rx_rings[queue_pair]);
-	i40e_queue_pair_toggle_napi(vsi, queue_pair, false /* off */);
 	i40e_queue_pair_clean_rings(vsi, queue_pair);
 	i40e_queue_pair_reset_stats(vsi, queue_pair);
 
-- 
2.43.0