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Message-Id: <20230208005626.72930-1-saeed@kernel.org>
Date: Tue, 7 Feb 2023 16:56:26 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>,
Jason Gunthorpe <jgg@...dia.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, linux-rdma@...r.kernel.org,
Leon Romanovsky <leonro@...dia.com>, netdev@...r.kernel.org
Subject: pull-request: mlx5-next netdev notifier deadlock 2023-02-07
The following changes since commit b7bfaa761d760e72a969d116517eaa12e404c262:
Linux 6.2-rc3 (2023-01-08 11:49:43 -0600)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git tags/mlx5-next-netdev-deadlock
for you to fetch changes up to e630cb2daadd965933f1870dd65efc942d266210:
RDMA/mlx5: Track netdev to avoid deadlock during netdev notifier unregister (2023-02-07 16:39:09 -0800)
----------------------------------------------------------------
mlx5-next-netdev-deadlock
This series from Jiri solves a deadlock when removing a network namespace
with mlx5 devlink instance being in it.
The deadlock is between:
1) mlx5_ib->unregister_netdevice_notifier()
AND
2) mlx5_core->devlink_reload->cleanup_net()
To slove this introduced mlx5 netdev added/removed events to track uplink
netdev to be used for register_netdevice_notifier_dev_net() purposes.
----------------------------------------------------------------
Jiri Pirko (3):
net/mlx5e: Fix trap event handling
net/mlx5e: Propagate an internal event in case uplink netdev changes
RDMA/mlx5: Track netdev to avoid deadlock during netdev notifier unregister
Patrisious Haddad (1):
net/mlx5: Introduce CQE error syndrome
drivers/infiniband/hw/mlx5/main.c | 78 +++++++++++++++-------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 3 +
drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 24 +++----
drivers/net/ethernet/mellanox/mlx5/core/devlink.h | 5 ++
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 15 +++--
drivers/net/ethernet/mellanox/mlx5/core/events.c | 2 +
drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h | 5 --
drivers/net/ethernet/mellanox/mlx5/core/main.c | 20 ++++++
include/linux/mlx5/device.h | 1 +
include/linux/mlx5/driver.h | 5 ++
include/linux/mlx5/mlx5_ifc.h | 47 +++++++++++--
11 files changed, 154 insertions(+), 51 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index c669ef6e47e7..dc32e4518a28 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3012,26 +3012,63 @@ static void mlx5_eth_lag_cleanup(struct mlx5_ib_dev *dev)
}
}
-static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev, u32 port_num)
+static void mlx5_netdev_notifier_register(struct mlx5_roce *roce,
+ struct net_device *netdev)
{
int err;
- dev->port[port_num].roce.nb.notifier_call = mlx5_netdev_event;
- err = register_netdevice_notifier(&dev->port[port_num].roce.nb);
- if (err) {
- dev->port[port_num].roce.nb.notifier_call = NULL;
- return err;
- }
+ if (roce->tracking_netdev)
+ return;
+ roce->tracking_netdev = netdev;
+ roce->nb.notifier_call = mlx5_netdev_event;
+ err = register_netdevice_notifier_dev_net(netdev, &roce->nb, &roce->nn);
+ WARN_ON(err);
+}
- return 0;
+static void mlx5_netdev_notifier_unregister(struct mlx5_roce *roce)
+{
+ if (!roce->tracking_netdev)
+ return;
+ unregister_netdevice_notifier_dev_net(roce->tracking_netdev, &roce->nb,
+ &roce->nn);
+ roce->tracking_netdev = NULL;
}
-static void mlx5_remove_netdev_notifier(struct mlx5_ib_dev *dev, u32 port_num)
+static int mlx5e_mdev_notifier_event(struct notifier_block *nb,
+ unsigned long event, void *data)
{
- if (dev->port[port_num].roce.nb.notifier_call) {
- unregister_netdevice_notifier(&dev->port[port_num].roce.nb);
- dev->port[port_num].roce.nb.notifier_call = NULL;
+ struct mlx5_roce *roce = container_of(nb, struct mlx5_roce, mdev_nb);
+ struct net_device *netdev = data;
+
+ switch (event) {
+ case MLX5_DRIVER_EVENT_UPLINK_NETDEV:
+ if (netdev)
+ mlx5_netdev_notifier_register(roce, netdev);
+ else
+ mlx5_netdev_notifier_unregister(roce);
+ break;
+ default:
+ return NOTIFY_DONE;
}
+
+ return NOTIFY_OK;
+}
+
+static void mlx5_mdev_netdev_track(struct mlx5_ib_dev *dev, u32 port_num)
+{
+ struct mlx5_roce *roce = &dev->port[port_num].roce;
+
+ roce->mdev_nb.notifier_call = mlx5e_mdev_notifier_event;
+ mlx5_blocking_notifier_register(dev->mdev, &roce->mdev_nb);
+ mlx5_core_uplink_netdev_event_replay(dev->mdev);
+}
+
+static void mlx5_mdev_netdev_untrack(struct mlx5_ib_dev *dev, u32 port_num)
+{
+ struct mlx5_roce *roce = &dev->port[port_num].roce;
+
+ mlx5_blocking_notifier_unregister(dev->mdev, &roce->mdev_nb);
+ mlx5_netdev_notifier_unregister(roce);
}
static int mlx5_enable_eth(struct mlx5_ib_dev *dev)
@@ -3138,7 +3175,7 @@ static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
if (mpi->mdev_events.notifier_call)
mlx5_notifier_unregister(mpi->mdev, &mpi->mdev_events);
mpi->mdev_events.notifier_call = NULL;
- mlx5_remove_netdev_notifier(ibdev, port_num);
+ mlx5_mdev_netdev_untrack(ibdev, port_num);
spin_lock(&port->mp.mpi_lock);
comps = mpi->mdev_refcnt;
@@ -3196,12 +3233,7 @@ static bool mlx5_ib_bind_slave_port(struct mlx5_ib_dev *ibdev,
if (err)
goto unbind;
- err = mlx5_add_netdev_notifier(ibdev, port_num);
- if (err) {
- mlx5_ib_err(ibdev, "failed adding netdev notifier for port %u\n",
- port_num + 1);
- goto unbind;
- }
+ mlx5_mdev_netdev_track(ibdev, port_num);
mpi->mdev_events.notifier_call = mlx5_ib_event_slave_port;
mlx5_notifier_register(mpi->mdev, &mpi->mdev_events);
@@ -3909,9 +3941,7 @@ static int mlx5_ib_roce_init(struct mlx5_ib_dev *dev)
port_num = mlx5_core_native_port_num(dev->mdev) - 1;
/* Register only for native ports */
- err = mlx5_add_netdev_notifier(dev, port_num);
- if (err)
- return err;
+ mlx5_mdev_netdev_track(dev, port_num);
err = mlx5_enable_eth(dev);
if (err)
@@ -3920,7 +3950,7 @@ static int mlx5_ib_roce_init(struct mlx5_ib_dev *dev)
return 0;
cleanup:
- mlx5_remove_netdev_notifier(dev, port_num);
+ mlx5_mdev_netdev_untrack(dev, port_num);
return err;
}
@@ -3938,7 +3968,7 @@ static void mlx5_ib_roce_cleanup(struct mlx5_ib_dev *dev)
mlx5_disable_eth(dev);
port_num = mlx5_core_native_port_num(dev->mdev) - 1;
- mlx5_remove_netdev_notifier(dev, port_num);
+ mlx5_mdev_netdev_untrack(dev, port_num);
}
}
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 8b91babdd4c0..7394e7f36ba7 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -832,6 +832,9 @@ struct mlx5_roce {
rwlock_t netdev_lock;
struct net_device *netdev;
struct notifier_block nb;
+ struct netdev_net_notifier nn;
+ struct notifier_block mdev_nb;
+ struct net_device *tracking_netdev;
atomic_t tx_port_affinity;
enum ib_port_state last_port_state;
struct mlx5_ib_dev *dev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
index 5bd83c0275f8..c06baa317fbd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -263,9 +263,10 @@ static int mlx5_devlink_trap_action_set(struct devlink *devlink,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
+ struct mlx5_devlink_trap_event_ctx trap_event_ctx;
enum devlink_trap_action action_orig;
struct mlx5_devlink_trap *dl_trap;
- int err = 0;
+ int err;
if (is_mdev_switchdev_mode(dev)) {
NL_SET_ERR_MSG_MOD(extack, "Devlink traps can't be set in switchdev mode");
@@ -275,26 +276,25 @@ static int mlx5_devlink_trap_action_set(struct devlink *devlink,
dl_trap = mlx5_find_trap_by_id(dev, trap->id);
if (!dl_trap) {
mlx5_core_err(dev, "Devlink trap: Set action on invalid trap id 0x%x", trap->id);
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
- if (action != DEVLINK_TRAP_ACTION_DROP && action != DEVLINK_TRAP_ACTION_TRAP) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (action != DEVLINK_TRAP_ACTION_DROP && action != DEVLINK_TRAP_ACTION_TRAP)
+ return -EOPNOTSUPP;
if (action == dl_trap->trap.action)
- goto out;
+ return 0;
action_orig = dl_trap->trap.action;
dl_trap->trap.action = action;
+ trap_event_ctx.trap = &dl_trap->trap;
+ trap_event_ctx.err = 0;
err = mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_TYPE_TRAP,
- &dl_trap->trap);
- if (err)
+ &trap_event_ctx);
+ if (err == NOTIFY_BAD)
dl_trap->trap.action = action_orig;
-out:
- return err;
+
+ return trap_event_ctx.err;
}
static const struct devlink_ops mlx5_devlink_ops = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.h b/drivers/net/ethernet/mellanox/mlx5/core/devlink.h
index fd033df24856..b84cb70eb3ae 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.h
@@ -24,6 +24,11 @@ struct mlx5_devlink_trap {
struct list_head list;
};
+struct mlx5_devlink_trap_event_ctx {
+ struct mlx5_trap_ctx *trap;
+ int err;
+};
+
struct mlx5_core_dev;
void mlx5_devlink_trap_report(struct mlx5_core_dev *dev, int trap_id, struct sk_buff *skb,
struct devlink_port *dl_port);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index cff5f2e29e1e..85b51039d2a6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -179,17 +179,21 @@ static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
static int blocking_event(struct notifier_block *nb, unsigned long event, void *data)
{
struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, blocking_events_nb);
+ struct mlx5_devlink_trap_event_ctx *trap_event_ctx = data;
int err;
switch (event) {
case MLX5_DRIVER_EVENT_TYPE_TRAP:
- err = mlx5e_handle_trap_event(priv, data);
+ err = mlx5e_handle_trap_event(priv, trap_event_ctx->trap);
+ if (err) {
+ trap_event_ctx->err = err;
+ return NOTIFY_BAD;
+ }
break;
default:
- netdev_warn(priv->netdev, "Sync event: Unknown event %ld\n", event);
- err = -EINVAL;
+ return NOTIFY_DONE;
}
- return err;
+ return NOTIFY_OK;
}
static void mlx5e_enable_blocking_events(struct mlx5e_priv *priv)
@@ -5957,7 +5961,7 @@ static int mlx5e_probe(struct auxiliary_device *adev,
}
mlx5e_dcbnl_init_app(priv);
- mlx5_uplink_netdev_set(mdev, netdev);
+ mlx5_core_uplink_netdev_set(mdev, netdev);
mlx5e_params_print_info(mdev, &priv->channels.params);
return 0;
@@ -5977,6 +5981,7 @@ static void mlx5e_remove(struct auxiliary_device *adev)
struct mlx5e_priv *priv = auxiliary_get_drvdata(adev);
pm_message_t state = {};
+ mlx5_core_uplink_netdev_set(priv->mdev, NULL);
mlx5e_dcbnl_delete_app(priv);
unregister_netdev(priv->netdev);
mlx5e_suspend(adev, state);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 9459e56ee90a..718cf09c28ce 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -424,6 +424,7 @@ int mlx5_blocking_notifier_register(struct mlx5_core_dev *dev, struct notifier_b
return blocking_notifier_chain_register(&events->sw_nh, nb);
}
+EXPORT_SYMBOL(mlx5_blocking_notifier_register);
int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb)
{
@@ -431,6 +432,7 @@ int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier
return blocking_notifier_chain_unregister(&events->sw_nh, nb);
}
+EXPORT_SYMBOL(mlx5_blocking_notifier_unregister);
int mlx5_blocking_notifier_call_chain(struct mlx5_core_dev *dev, unsigned int event,
void *data)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
index 032adb21ad4b..bfd3a1121ed8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
@@ -96,11 +96,6 @@ static inline struct net *mlx5_core_net(struct mlx5_core_dev *dev)
return devlink_net(priv_to_devlink(dev));
}
-static inline void mlx5_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev)
-{
- mdev->mlx5e_res.uplink_netdev = netdev;
-}
-
static inline struct net_device *mlx5_uplink_netdev_get(struct mlx5_core_dev *mdev)
{
return mdev->mlx5e_res.uplink_netdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index df134f6d32dc..72716d1f8b37 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -336,6 +336,24 @@ static u16 to_fw_pkey_sz(struct mlx5_core_dev *dev, u32 size)
}
}
+void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *dev, struct net_device *netdev)
+{
+ mutex_lock(&dev->mlx5e_res.uplink_netdev_lock);
+ dev->mlx5e_res.uplink_netdev = netdev;
+ mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_UPLINK_NETDEV,
+ netdev);
+ mutex_unlock(&dev->mlx5e_res.uplink_netdev_lock);
+}
+
+void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *dev)
+{
+ mutex_lock(&dev->mlx5e_res.uplink_netdev_lock);
+ mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_UPLINK_NETDEV,
+ dev->mlx5e_res.uplink_netdev);
+ mutex_unlock(&dev->mlx5e_res.uplink_netdev_lock);
+}
+EXPORT_SYMBOL(mlx5_core_uplink_netdev_event_replay);
+
static int mlx5_core_get_caps_mode(struct mlx5_core_dev *dev,
enum mlx5_cap_type cap_type,
enum mlx5_cap_mode cap_mode)
@@ -1608,6 +1626,7 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx)
lockdep_register_key(&dev->lock_key);
mutex_init(&dev->intf_state_mutex);
lockdep_set_class(&dev->intf_state_mutex, &dev->lock_key);
+ mutex_init(&dev->mlx5e_res.uplink_netdev_lock);
mutex_init(&priv->bfregs.reg_head.lock);
mutex_init(&priv->bfregs.wc_head.lock);
@@ -1696,6 +1715,7 @@ void mlx5_mdev_uninit(struct mlx5_core_dev *dev)
mutex_destroy(&priv->alloc_mutex);
mutex_destroy(&priv->bfregs.wc_head.lock);
mutex_destroy(&priv->bfregs.reg_head.lock);
+ mutex_destroy(&dev->mlx5e_res.uplink_netdev_lock);
mutex_destroy(&dev->intf_state_mutex);
lockdep_unregister_key(&dev->lock_key);
}
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 29d4b201c7b2..f2b271169daf 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -362,6 +362,7 @@ enum mlx5_event {
enum mlx5_driver_event {
MLX5_DRIVER_EVENT_TYPE_TRAP = 0,
+ MLX5_DRIVER_EVENT_UPLINK_NETDEV,
};
enum {
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index d476255c9a3f..cc48aa308269 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -49,6 +49,7 @@
#include <linux/notifier.h>
#include <linux/refcount.h>
#include <linux/auxiliary_bus.h>
+#include <linux/mutex.h>
#include <linux/mlx5/device.h>
#include <linux/mlx5/doorbell.h>
@@ -674,6 +675,7 @@ struct mlx5e_resources {
} hw_objs;
struct devlink_port dl_port;
struct net_device *uplink_netdev;
+ struct mutex uplink_netdev_lock;
};
enum mlx5_sw_icm_type {
@@ -1011,6 +1013,9 @@ int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
void *out, int out_size);
bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
+void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev);
+void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *mdev);
+
int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
void mlx5_health_cleanup(struct mlx5_core_dev *dev);
int mlx5_health_init(struct mlx5_core_dev *dev);
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index a9ee7bc59c90..2d17b6a6d82d 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1496,7 +1496,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 null_mkey[0x1];
u8 log_max_klm_list_size[0x6];
- u8 reserved_at_120[0xa];
+ u8 reserved_at_120[0x2];
+ u8 qpc_extension[0x1];
+ u8 reserved_at_123[0x7];
u8 log_max_ra_req_dc[0x6];
u8 reserved_at_130[0x2];
u8 eth_wqe_too_small[0x1];
@@ -1662,7 +1664,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 log_bf_reg_size[0x5];
- u8 reserved_at_270[0x6];
+ u8 reserved_at_270[0x3];
+ u8 qp_error_syndrome[0x1];
+ u8 reserved_at_274[0x2];
u8 lag_dct[0x2];
u8 lag_tx_port_affinity[0x1];
u8 lag_native_fdb_selection[0x1];
@@ -5342,6 +5346,37 @@ struct mlx5_ifc_query_rmp_in_bits {
u8 reserved_at_60[0x20];
};
+struct mlx5_ifc_cqe_error_syndrome_bits {
+ u8 hw_error_syndrome[0x8];
+ u8 hw_syndrome_type[0x4];
+ u8 reserved_at_c[0x4];
+ u8 vendor_error_syndrome[0x8];
+ u8 syndrome[0x8];
+};
+
+struct mlx5_ifc_qp_context_extension_bits {
+ u8 reserved_at_0[0x60];
+
+ struct mlx5_ifc_cqe_error_syndrome_bits error_syndrome;
+
+ u8 reserved_at_80[0x580];
+};
+
+struct mlx5_ifc_qpc_extension_and_pas_list_in_bits {
+ struct mlx5_ifc_qp_context_extension_bits qpc_data_extension;
+
+ u8 pas[0][0x40];
+};
+
+struct mlx5_ifc_qp_pas_list_in_bits {
+ struct mlx5_ifc_cmd_pas_bits pas[0];
+};
+
+union mlx5_ifc_qp_pas_or_qpc_ext_and_pas_bits {
+ struct mlx5_ifc_qp_pas_list_in_bits qp_pas_list;
+ struct mlx5_ifc_qpc_extension_and_pas_list_in_bits qpc_ext_and_pas_list;
+};
+
struct mlx5_ifc_query_qp_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];
@@ -5358,7 +5393,7 @@ struct mlx5_ifc_query_qp_out_bits {
u8 reserved_at_800[0x80];
- u8 pas[][0x40];
+ union mlx5_ifc_qp_pas_or_qpc_ext_and_pas_bits qp_pas_or_qpc_ext_and_pas;
};
struct mlx5_ifc_query_qp_in_bits {
@@ -5368,7 +5403,8 @@ struct mlx5_ifc_query_qp_in_bits {
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
- u8 reserved_at_40[0x8];
+ u8 qpc_ext[0x1];
+ u8 reserved_at_41[0x7];
u8 qpn[0x18];
u8 reserved_at_60[0x20];
@@ -8571,7 +8607,8 @@ struct mlx5_ifc_create_qp_in_bits {
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
- u8 reserved_at_40[0x8];
+ u8 qpc_ext[0x1];
+ u8 reserved_at_41[0x7];
u8 input_qpn[0x18];
u8 reserved_at_60[0x20];
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