linux-kernel - [PATCH iwl-net v3] ice: Block PF reinit if attached to bond

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Message-Id: <20231117164427.912563-1-sachin.bahadur@intel.com>
Date:   Fri, 17 Nov 2023 08:44:27 -0800
From:   Sachin Bahadur <sachin.bahadur@...el.com>
To:     intel-wired-lan@...ts.osuosl.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH iwl-net v3] ice: Block PF reinit if attached to bond

PF interface part of LAG should not allow driver reinit via devlink. The
Bond config will be lost due to driver reinit. ice_devlink_reload_down is
called before PF driver reinit. If PF is attached to bond,
ice_devlink_reload_down returns error.

Fixes: trailer
Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Sachin Bahadur <sachin.bahadur@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_devlink.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c
index f4e24d11ebd0..5fe88e949b09 100644
--- a/drivers/net/ethernet/intel/ice/ice_devlink.c
+++ b/drivers/net/ethernet/intel/ice/ice_devlink.c
@@ -457,6 +457,10 @@ ice_devlink_reload_down(struct devlink *devlink, bool netns_change,
 					   "Remove all VFs before doing reinit\n");
 			return -EOPNOTSUPP;
 		}
+		if (pf->lag && pf->lag->bonded) {
+			NL_SET_ERR_MSG_MOD(extack, "Remove all associated Bonds before doing reinit");
+			return -EBUSY;
+		}
 		ice_unload(pf);
 		return 0;
 	case DEVLINK_RELOAD_ACTION_FW_ACTIVATE:
-- 
2.25.1