netdev - [PATCH iwl-net 05/11] ice: toggle netif_carrier when setting up XSK pool

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240528131429.3012910-6-maciej.fijalkowski@intel.com>
Date: Tue, 28 May 2024 15:14:23 +0200
From: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
	anthony.l.nguyen@...el.com,
	magnus.karlsson@...el.com,
	michal.kubiak@...el.com,
	larysa.zaremba@...el.com,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH iwl-net 05/11] ice: toggle netif_carrier when setting up XSK pool

In order to prevent Tx timeout issues, toggle the netif_carrier when
disabling and enabling queue pair during XSK pool setup. One of
conditions checked on running in the background dev_watchdog() is
netif_carrier_ok(), so let us turn it off when we disable the queues
that belong to a q_vector where XSK pool is being configured.

Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_xsk.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
index 3dcab89be256..8c5006f37310 100644
--- a/drivers/net/ethernet/intel/ice/ice_xsk.c
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
@@ -181,6 +181,7 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx)
 	}
 
 	synchronize_net();
+	netif_carrier_off(vsi->netdev);
 	netif_tx_stop_queue(netdev_get_tx_queue(vsi->netdev, q_idx));
 
 	ice_qvec_dis_irq(vsi, rx_ring, q_vector);
@@ -250,6 +251,7 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
 	ice_qvec_ena_irq(vsi, q_vector);
 
 	netif_tx_start_queue(netdev_get_tx_queue(vsi->netdev, q_idx));
+	netif_carrier_on(vsi->netdev);
 	clear_bit(ICE_CFG_BUSY, vsi->state);
 
 	return fail;
-- 
2.34.1