[PATCH v3] net/ice: fix ice dcf control thread crash
Mingjin Ye
mingjinx.ye at intel.com
Wed Mar 15 09:20:18 CET 2023
The control thread accesses the hardware resources after the
resources were released, resulting in a segment error.
This commit fixes the issue by waiting for all `ice-reset` threads to
finish before reclaiming resources.
Fixes: b71573ec2fc2 ("net/ice: retry getting VF VSI map after failure")
Fixes: 7564d5509611 ("net/ice: add DCF hardware initialization")
Cc: stable at dpdk.org
Signed-off-by: Ke Zhang <ke1x.zhang at intel.com>
Signed-off-by: Mingjin Ye <mingjinx.ye at intel.com>
---
v2: add pthread_exit() for windows
---
V3: Optimization. It is unsafe for a thread to forcibly exit, which will
cause the spin lock to not be released correctly
---
drivers/net/ice/ice_dcf.c | 15 +++++++++++++--
drivers/net/ice/ice_dcf.h | 2 ++
drivers/net/ice/ice_dcf_parent.c | 1 -
3 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c
index 1c3d22ae0f..b3dea779aa 100644
--- a/drivers/net/ice/ice_dcf.c
+++ b/drivers/net/ice/ice_dcf.c
@@ -543,6 +543,8 @@ ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
ice_dcf_disable_irq0(hw);
for (;;) {
+ if (hw->vc_event_msg_cb == NULL)
+ break;
if (ice_dcf_get_vf_resource(hw) == 0 &&
ice_dcf_get_vf_vsi_map(hw) >= 0) {
err = 0;
@@ -555,8 +557,10 @@ ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
}
- rte_intr_enable(pci_dev->intr_handle);
- ice_dcf_enable_irq0(hw);
+ if (hw->vc_event_msg_cb != NULL) {
+ rte_intr_enable(pci_dev->intr_handle);
+ ice_dcf_enable_irq0(hw);
+ }
rte_spinlock_unlock(&hw->vc_cmd_send_lock);
@@ -749,6 +753,8 @@ ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
struct rte_intr_handle *intr_handle = pci_dev->intr_handle;
+ hw->vc_event_msg_cb = NULL;
+
if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_QOS)
if (hw->tm_conf.committed) {
ice_dcf_clear_bw(hw);
@@ -760,6 +766,9 @@ ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
rte_intr_callback_unregister(intr_handle,
ice_dcf_dev_interrupt_handler, hw);
+ rte_delay_us(ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL);
+ rte_spinlock_lock(&hw->vc_cmd_send_lock);
+
ice_dcf_mode_disable(hw);
iavf_shutdown_adminq(&hw->avf);
@@ -783,6 +792,8 @@ ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
rte_free(hw->ets_config);
hw->ets_config = NULL;
+
+ rte_spinlock_unlock(&hw->vc_cmd_send_lock);
}
int
diff --git a/drivers/net/ice/ice_dcf.h b/drivers/net/ice/ice_dcf.h
index 7f42ebabe9..f9465f60a6 100644
--- a/drivers/net/ice/ice_dcf.h
+++ b/drivers/net/ice/ice_dcf.h
@@ -15,6 +15,8 @@
#include "base/ice_type.h"
#include "ice_logs.h"
+#define ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL 100000 /* us */
+
/* ICE_DCF_DEV_PRIVATE_TO */
#define ICE_DCF_DEV_PRIVATE_TO_ADAPTER(adapter) \
((struct ice_dcf_adapter *)adapter)
diff --git a/drivers/net/ice/ice_dcf_parent.c b/drivers/net/ice/ice_dcf_parent.c
index 01e390ddda..d1b227c431 100644
--- a/drivers/net/ice/ice_dcf_parent.c
+++ b/drivers/net/ice/ice_dcf_parent.c
@@ -12,7 +12,6 @@
#include "ice_dcf_ethdev.h"
#include "ice_generic_flow.h"
-#define ICE_DCF_VSI_UPDATE_SERVICE_INTERVAL 100000 /* us */
static rte_spinlock_t vsi_update_lock = RTE_SPINLOCK_INITIALIZER;
struct ice_dcf_reset_event_param {
--
2.25.1
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