netdev - [PATCH iwl-next v2] ice: Check all ice_vsi

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Date: Fri, 14 Jun 2024 09:32:24 +0200
From: Karen Ostrowska <karen.ostrowska@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
	Eric Joyner <eric.joyner@...el.com>,
	Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Karen Ostrowska <karen.ostrowska@...el.com>
Subject: [PATCH iwl-next v2] ice: Check all ice_vsi_rebuild() errors in function

From: Eric Joyner <eric.joyner@...el.com>

Check the return value from ice_vsi_rebuild() and prevent the usage of
incorrectly configured VSI.

Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Signed-off-by: Eric Joyner <eric.joyner@...el.com>
Signed-off-by: Karen Ostrowska <karen.ostrowska@...el.com>
---
On v1 there was no goto done line added after ice_vsi_open(vsi).
It's needed to skip printing error message when is on success.

Original patch was introduced as implementation change not because of
fixing something, so I will skip adding here Fixes tag.
---
 drivers/net/ethernet/intel/ice/ice_main.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 78321616e754..114ecde0757c 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4158,13 +4158,17 @@ int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)
 
 	/* set for the next time the netdev is started */
 	if (!netif_running(vsi->netdev)) {
-		ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+		err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+		if (err)
+			goto rebuild_err;
 		dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");
 		goto done;
 	}
 
 	ice_vsi_close(vsi);
-	ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+	err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);
+	if (err)
+		goto rebuild_err;
 
 	ice_for_each_traffic_class(i) {
 		if (vsi->tc_cfg.ena_tc & BIT(i))
@@ -4175,6 +4179,10 @@ int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)
 	}
 	ice_pf_dcb_recfg(pf, locked);
 	ice_vsi_open(vsi);
+	goto done;
+
+rebuild_err:
+	dev_err(ice_pf_to_dev(pf), "Error during VSI rebuild: %d. Unload and reload the driver.\n", err);
 done:
 	clear_bit(ICE_CFG_BUSY, pf->state);
 	return err;
-- 
2.39.3