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Message-ID: <20251225062122.736308-2-aaron.ma@canonical.com>
Date: Thu, 25 Dec 2025 14:21:22 +0800
From: Aaron Ma <aaron.ma@...onical.com>
To: anthony.l.nguyen@...el.com,
przemyslaw.kitszel@...el.com,
andrew+netdev@...n.ch,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
intel-wired-lan@...ts.osuosl.org,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/2] ice: recap the VSI and QoS info after rebuild
Fix IRDMA hardware initialization timeout (-110) after resume by
separating VSI-dependent configuration from RDMA resource allocation,
ensuring VSI is rebuilt before IRDMA accesses it.
After resume from suspend, IRDMA hardware initialization fails:
ice: IRDMA hardware initialization FAILED init_state=4 status=-110
Separate RDMA initialization into two phases:
1. ice_init_rdma() - Allocate resources only (no VSI/QoS access, no plug)
2. ice_rdma_finalize_setup() - Assign VSI/QoS info and plug device
This allows:
- ice_init_rdma() to stay in ice_resume() (mirrors ice_deinit_rdma()
in ice_suspend()
- VSI assignment deferred until after ice_vsi_rebuild() completes
- QoS info updated after ice_dcb_rebuild() completes
- Device plugged only when control queues, VSI, and DCB are all ready
Fixes: bc69ad74867db ("ice: avoid IRQ collision to fix init failure on ACPI S3 resume")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Signed-off-by: Aaron Ma <aaron.ma@...onical.com>
---
V1 -> V2: no changes.
V2 -> V3:
- mirrors init_rdma in resume as Tony Nguyen suggested to fix
the memleak and move ice_plug_aux_dev/ice_unplug_aux_dev out of
init/deinit rdma.
- ensure the correct VSI/QoS info is loaded after rebuild.
drivers/net/ethernet/intel/ice/ice.h | 1 +
drivers/net/ethernet/intel/ice/ice_idc.c | 41 +++++++++++++++++------
drivers/net/ethernet/intel/ice/ice_main.c | 7 +++-
3 files changed, 38 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index 147aaee192a79..6463c1fea7871 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -989,6 +989,7 @@ int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset);
void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
int ice_plug_aux_dev(struct ice_pf *pf);
void ice_unplug_aux_dev(struct ice_pf *pf);
+void ice_rdma_finalize_setup(struct ice_pf *pf);
int ice_init_rdma(struct ice_pf *pf);
void ice_deinit_rdma(struct ice_pf *pf);
bool ice_is_wol_supported(struct ice_hw *hw);
diff --git a/drivers/net/ethernet/intel/ice/ice_idc.c b/drivers/net/ethernet/intel/ice/ice_idc.c
index 420d45c2558b6..b6079a6cb7736 100644
--- a/drivers/net/ethernet/intel/ice/ice_idc.c
+++ b/drivers/net/ethernet/intel/ice/ice_idc.c
@@ -360,6 +360,35 @@ void ice_unplug_aux_dev(struct ice_pf *pf)
auxiliary_device_uninit(adev);
}
+/**
+ * ice_rdma_finalize_setup - Complete RDMA setup after VSI is ready
+ * @pf: ptr to ice_pf
+ *
+ * Sets VSI-dependent information and plugs aux device.
+ * Must be called after ice_init_rdma(), ice_vsi_rebuild(), and
+ * ice_dcb_rebuild() complete.
+ */
+void ice_rdma_finalize_setup(struct ice_pf *pf)
+{
+ struct iidc_rdma_priv_dev_info *privd;
+
+ if (!ice_is_rdma_ena(pf) || !pf->cdev_info)
+ return;
+
+ privd = pf->cdev_info->iidc_priv;
+ if (!privd || !pf->vsi[0] || !pf->vsi[0]->netdev)
+ return;
+
+ /* Assign VSI info now that VSI is valid */
+ privd->netdev = pf->vsi[0]->netdev;
+ privd->vport_id = pf->vsi[0]->vsi_num;
+
+ /* Update QoS info after DCB has been rebuilt */
+ ice_setup_dcb_qos_info(pf, &privd->qos_info);
+
+ ice_plug_aux_dev(pf);
+}
+
/**
* ice_init_rdma - initializes PF for RDMA use
* @pf: ptr to ice_pf
@@ -398,23 +427,16 @@ int ice_init_rdma(struct ice_pf *pf)
}
cdev->iidc_priv = privd;
- privd->netdev = pf->vsi[0]->netdev;
privd->hw_addr = (u8 __iomem *)pf->hw.hw_addr;
cdev->pdev = pf->pdev;
- privd->vport_id = pf->vsi[0]->vsi_num;
pf->cdev_info->rdma_protocol |= IIDC_RDMA_PROTOCOL_ROCEV2;
- ice_setup_dcb_qos_info(pf, &privd->qos_info);
- ret = ice_plug_aux_dev(pf);
- if (ret)
- goto err_plug_aux_dev;
+
return 0;
-err_plug_aux_dev:
- pf->cdev_info->adev = NULL;
- xa_erase(&ice_aux_id, pf->aux_idx);
err_alloc_xa:
+ xa_erase(&ice_aux_id, pf->aux_idx);
kfree(privd);
err_privd_alloc:
kfree(cdev);
@@ -432,7 +454,6 @@ void ice_deinit_rdma(struct ice_pf *pf)
if (!ice_is_rdma_ena(pf))
return;
- ice_unplug_aux_dev(pf);
xa_erase(&ice_aux_id, pf->aux_idx);
kfree(pf->cdev_info->iidc_priv);
kfree(pf->cdev_info);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 4bb68e7a00f5f..1851e9932cefe 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5135,6 +5135,9 @@ int ice_load(struct ice_pf *pf)
if (err)
goto err_init_rdma;
+ /* Finalize RDMA: VSI already created, assign info and plug device */
+ ice_rdma_finalize_setup(pf);
+
ice_service_task_restart(pf);
clear_bit(ICE_DOWN, pf->state);
@@ -5166,6 +5169,7 @@ void ice_unload(struct ice_pf *pf)
devl_assert_locked(priv_to_devlink(pf));
+ ice_unplug_aux_dev(pf);
ice_deinit_rdma(pf);
ice_deinit_features(pf);
ice_tc_indir_block_unregister(vsi);
@@ -5594,6 +5598,7 @@ static int ice_suspend(struct device *dev)
*/
disabled = ice_service_task_stop(pf);
+ ice_unplug_aux_dev(pf);
ice_deinit_rdma(pf);
/* Already suspended?, then there is nothing to do */
@@ -7803,7 +7808,7 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
ice_health_clear(pf);
- ice_plug_aux_dev(pf);
+ ice_rdma_finalize_setup(pf);
if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG))
ice_lag_rebuild(pf);
--
2.43.0
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