[pull request][net-next V4 00/15] mlx5 updates 2024-01-26

[pull request][net-next V4 00/15] mlx5 updates 2024-01-26

[Saeed Mahameed]

From: Saeed Mahameed <saeedm@nvidia.com>

v3->v4:
 - Prevent a use after free in case of error flow inside
   mlx5dr_dbg_create_dump_data() patch #13

v2->v3:
 - Add noinline_for_stack to address large frame size issue patch #13

v1->v2:
 - Fix large stack buffer usage in patch #13

This series provides misc updates to mlx5 and xfrm,
the two xfrm patches are already acked by Steffen Klassert in the
previous release cycle.

For more information please see tag log below.
Please pull and let me know if there is any problem.

Thanks,
Saeed.


The following changes since commit 8ff25dac88f616ebebb30830e3a20f079d7a30c9:

  netdevsim: add Makefile for selftests (2024-02-05 07:34:02 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git tags/mlx5-updates-2024-02-01

for you to fetch changes up to a90f55916f150ced7b2635bedd43676f922ee075:

  net/mlx5e: XDP, Exclude headroom and tailroom from memory calculations (2024-02-05 16:45:53 -0800)

----------------------------------------------------------------
mlx5-updates-2024-02-01

1) IPSec global stats for xfrm and mlx5
2) XSK memory improvements for non-linear SKBs
3) Software steering debug dump to use seq_file ops
4) Various code clean-ups

----------------------------------------------------------------
Carolina Jubran (2):
      net/mlx5e: XSK, Exclude tailroom from non-linear SKBs memory calculations
      net/mlx5e: XDP, Exclude headroom and tailroom from memory calculations

Gal Pressman (2):
      net/mlx5: Remove initial segmentation duplicate definitions
      net/mlx5: Change missing SyncE capability print to debug

Hamdan Igbaria (1):
      net/mlx5: DR, Change SWS usage to debug fs seq_file interface

Leon Romanovsky (4):
      xfrm: generalize xdo_dev_state_update_curlft to allow statistics update
      xfrm: get global statistics from the offloaded device
      net/mlx5e: Connect mlx5 IPsec statistics with XFRM core
      net/mlx5e: Delete obsolete IPsec code

Moshe Shemesh (6):
      Documentation: Fix counter name of mlx5 vnic reporter
      net/mlx5: Rename mlx5_sf_dev_remove
      net/mlx5: remove fw_fatal reporter dump option for non PF
      net/mlx5: remove fw reporter dump option for non PF
      net/mlx5: SF, Stop waiting for FW as teardown was called
      net/mlx5: Return specific error code for timeout on wait_fw_init

 Documentation/networking/devlink/mlx5.rst          |   5 +-
 Documentation/networking/xfrm_device.rst           |   4 +-
 drivers/net/ethernet/mellanox/mlx5/core/dev.c      |   2 +-
 .../net/ethernet/mellanox/mlx5/core/en/params.c    |  24 +-
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec.c   |  26 +-
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec.h   |   1 -
 .../mellanox/mlx5/core/en_accel/ipsec_rxtx.c       |  25 +-
 .../mellanox/mlx5/core/en_accel/ipsec_rxtx.h       |   1 -
 .../mellanox/mlx5/core/en_accel/ipsec_stats.c      |   1 -
 drivers/net/ethernet/mellanox/mlx5/core/fw.c       |   6 +-
 drivers/net/ethernet/mellanox/mlx5/core/health.c   |  45 +-
 drivers/net/ethernet/mellanox/mlx5/core/main.c     |  38 +-
 .../net/ethernet/mellanox/mlx5/core/mlx5_core.h    |   7 -
 .../net/ethernet/mellanox/mlx5/core/sf/dev/dev.c   |   9 +-
 .../ethernet/mellanox/mlx5/core/sf/dev/driver.c    |  21 +-
 .../ethernet/mellanox/mlx5/core/steering/dr_dbg.c  | 734 +++++++++++++++++----
 .../ethernet/mellanox/mlx5/core/steering/dr_dbg.h  |  20 +
 include/linux/mlx5/mlx5_ifc.h                      |   1 +
 include/linux/netdevice.h                          |   2 +-
 include/net/xfrm.h                                 |  14 +-
 net/xfrm/xfrm_proc.c                               |   1 +
 net/xfrm/xfrm_state.c                              |  17 +-
 net/xfrm/xfrm_user.c                               |   2 +-
 23 files changed, 766 insertions(+), 240 deletions(-)

[net-next V4 01/15] xfrm: generalize xdo_dev_state_update_curlft to allow statistics update

[Saeed Mahameed]

From: Leon Romanovsky <leonro@nvidia.com>

In order to allow drivers to fill all statistics, change the name
of xdo_dev_state_update_curlft to be xdo_dev_state_update_stats.

Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 Documentation/networking/xfrm_device.rst              |  4 ++--
 .../net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c  |  7 ++++---
 include/linux/netdevice.h                             |  2 +-
 include/net/xfrm.h                                    | 11 ++++-------
 net/xfrm/xfrm_state.c                                 |  4 ++--
 net/xfrm/xfrm_user.c                                  |  2 +-
 6 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/Documentation/networking/xfrm_device.rst b/Documentation/networking/xfrm_device.rst
index 535077cbeb07..bfea9d8579ed 100644
--- a/Documentation/networking/xfrm_device.rst
+++ b/Documentation/networking/xfrm_device.rst
@@ -71,9 +71,9 @@ Callbacks to implement
 	bool	(*xdo_dev_offload_ok) (struct sk_buff *skb,
 				       struct xfrm_state *x);
 	void    (*xdo_dev_state_advance_esn) (struct xfrm_state *x);
+	void    (*xdo_dev_state_update_stats) (struct xfrm_state *x);
 
         /* Solely packet offload callbacks */
-	void    (*xdo_dev_state_update_curlft) (struct xfrm_state *x);
 	int	(*xdo_dev_policy_add) (struct xfrm_policy *x, struct netlink_ext_ack *extack);
 	void	(*xdo_dev_policy_delete) (struct xfrm_policy *x);
 	void	(*xdo_dev_policy_free) (struct xfrm_policy *x);
@@ -191,6 +191,6 @@ xdo_dev_policy_free() on any remaining offloaded states.
 
 Outcome of HW handling packets, the XFRM core can't count hard, soft limits.
 The HW/driver are responsible to perform it and provide accurate data when
-xdo_dev_state_update_curlft() is called. In case of one of these limits
+xdo_dev_state_update_stats() is called. In case of one of these limits
 occuried, the driver needs to call to xfrm_state_check_expire() to make sure
 that XFRM performs rekeying sequence.
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 05612d9c6080..f160522fbe75 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -984,7 +984,7 @@ static void mlx5e_xfrm_advance_esn_state(struct xfrm_state *x)
 	queue_work(sa_entry->ipsec->wq, &work->work);
 }
 
-static void mlx5e_xfrm_update_curlft(struct xfrm_state *x)
+static void mlx5e_xfrm_update_stats(struct xfrm_state *x)
 {
 	struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);
 	struct mlx5e_ipsec_rule *ipsec_rule = &sa_entry->ipsec_rule;
@@ -993,7 +993,8 @@ static void mlx5e_xfrm_update_curlft(struct xfrm_state *x)
 	lockdep_assert(lockdep_is_held(&x->lock) ||
 		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_cfg_mutex));
 
-	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ)
+	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ ||
+	    x->xso.type != XFRM_DEV_OFFLOAD_PACKET)
 		return;
 
 	mlx5_fc_query_cached(ipsec_rule->fc, &bytes, &packets, &lastuse);
@@ -1156,7 +1157,7 @@ static const struct xfrmdev_ops mlx5e_ipsec_xfrmdev_ops = {
 	.xdo_dev_offload_ok	= mlx5e_ipsec_offload_ok,
 	.xdo_dev_state_advance_esn = mlx5e_xfrm_advance_esn_state,
 
-	.xdo_dev_state_update_curlft = mlx5e_xfrm_update_curlft,
+	.xdo_dev_state_update_stats = mlx5e_xfrm_update_stats,
 	.xdo_dev_policy_add = mlx5e_xfrm_add_policy,
 	.xdo_dev_policy_delete = mlx5e_xfrm_del_policy,
 	.xdo_dev_policy_free = mlx5e_xfrm_free_policy,
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 118c40258d07..9538576dbebc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1062,7 +1062,7 @@ struct xfrmdev_ops {
 	bool	(*xdo_dev_offload_ok) (struct sk_buff *skb,
 				       struct xfrm_state *x);
 	void	(*xdo_dev_state_advance_esn) (struct xfrm_state *x);
-	void	(*xdo_dev_state_update_curlft) (struct xfrm_state *x);
+	void	(*xdo_dev_state_update_stats) (struct xfrm_state *x);
 	int	(*xdo_dev_policy_add) (struct xfrm_policy *x, struct netlink_ext_ack *extack);
 	void	(*xdo_dev_policy_delete) (struct xfrm_policy *x);
 	void	(*xdo_dev_policy_free) (struct xfrm_policy *x);
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 1d107241b901..4ca2f3205190 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1578,21 +1578,18 @@ struct xfrm_state *xfrm_state_lookup_byspi(struct net *net, __be32 spi,
 					      unsigned short family);
 int xfrm_state_check_expire(struct xfrm_state *x);
 #ifdef CONFIG_XFRM_OFFLOAD
-static inline void xfrm_dev_state_update_curlft(struct xfrm_state *x)
+static inline void xfrm_dev_state_update_stats(struct xfrm_state *x)
 {
 	struct xfrm_dev_offload *xdo = &x->xso;
 	struct net_device *dev = xdo->dev;
 
-	if (x->xso.type != XFRM_DEV_OFFLOAD_PACKET)
-		return;
-
 	if (dev && dev->xfrmdev_ops &&
-	    dev->xfrmdev_ops->xdo_dev_state_update_curlft)
-		dev->xfrmdev_ops->xdo_dev_state_update_curlft(x);
+	    dev->xfrmdev_ops->xdo_dev_state_update_stats)
+		dev->xfrmdev_ops->xdo_dev_state_update_stats(x);
 
 }
 #else
-static inline void xfrm_dev_state_update_curlft(struct xfrm_state *x) {}
+static inline void xfrm_dev_state_update_stats(struct xfrm_state *x) {}
 #endif
 void xfrm_state_insert(struct xfrm_state *x);
 int xfrm_state_add(struct xfrm_state *x);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index bda5327bf34d..d8701b2d0d57 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -570,7 +570,7 @@ static enum hrtimer_restart xfrm_timer_handler(struct hrtimer *me)
 	int err = 0;
 
 	spin_lock(&x->lock);
-	xfrm_dev_state_update_curlft(x);
+	xfrm_dev_state_update_stats(x);
 
 	if (x->km.state == XFRM_STATE_DEAD)
 		goto out;
@@ -1935,7 +1935,7 @@ EXPORT_SYMBOL(xfrm_state_update);
 
 int xfrm_state_check_expire(struct xfrm_state *x)
 {
-	xfrm_dev_state_update_curlft(x);
+	xfrm_dev_state_update_stats(x);
 
 	if (!READ_ONCE(x->curlft.use_time))
 		WRITE_ONCE(x->curlft.use_time, ktime_get_real_seconds());
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index ad01997c3aa9..dc4f9b8d7cb0 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -902,7 +902,7 @@ static void copy_to_user_state(struct xfrm_state *x, struct xfrm_usersa_info *p)
 	memcpy(&p->sel, &x->sel, sizeof(p->sel));
 	memcpy(&p->lft, &x->lft, sizeof(p->lft));
 	if (x->xso.dev)
-		xfrm_dev_state_update_curlft(x);
+		xfrm_dev_state_update_stats(x);
 	memcpy(&p->curlft, &x->curlft, sizeof(p->curlft));
 	put_unaligned(x->stats.replay_window, &p->stats.replay_window);
 	put_unaligned(x->stats.replay, &p->stats.replay);
-- 
2.43.0

[net-next V4 02/15] xfrm: get global statistics from the offloaded device

[Saeed Mahameed]

From: Leon Romanovsky <leonro@nvidia.com>

Iterate over all SAs in order to fill global IPsec statistics.

Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec.c    |  3 ++-
 include/net/xfrm.h                                  |  3 +++
 net/xfrm/xfrm_proc.c                                |  1 +
 net/xfrm/xfrm_state.c                               | 13 +++++++++++++
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index f160522fbe75..46cce4e38d84 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -991,7 +991,8 @@ static void mlx5e_xfrm_update_stats(struct xfrm_state *x)
 	u64 packets, bytes, lastuse;
 
 	lockdep_assert(lockdep_is_held(&x->lock) ||
-		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_cfg_mutex));
+		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_cfg_mutex) ||
+		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_state_lock));
 
 	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ ||
 	    x->xso.type != XFRM_DEV_OFFLOAD_PACKET)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 4ca2f3205190..57c743b7e4fe 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -51,8 +51,10 @@
 
 #ifdef CONFIG_XFRM_STATISTICS
 #define XFRM_INC_STATS(net, field)	SNMP_INC_STATS((net)->mib.xfrm_statistics, field)
+#define XFRM_ADD_STATS(net, field, val) SNMP_ADD_STATS((net)->mib.xfrm_statistics, field, val)
 #else
 #define XFRM_INC_STATS(net, field)	((void)(net))
+#define XFRM_ADD_STATS(net, field, val) ((void)(net))
 #endif
 
 
@@ -1577,6 +1579,7 @@ struct xfrm_state *xfrm_stateonly_find(struct net *net, u32 mark, u32 if_id,
 struct xfrm_state *xfrm_state_lookup_byspi(struct net *net, __be32 spi,
 					      unsigned short family);
 int xfrm_state_check_expire(struct xfrm_state *x);
+void xfrm_state_update_stats(struct net *net);
 #ifdef CONFIG_XFRM_OFFLOAD
 static inline void xfrm_dev_state_update_stats(struct xfrm_state *x)
 {
diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c
index fee9b5cf37a7..5f9bf8e5c933 100644
--- a/net/xfrm/xfrm_proc.c
+++ b/net/xfrm/xfrm_proc.c
@@ -52,6 +52,7 @@ static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
 
 	memset(buff, 0, sizeof(unsigned long) * LINUX_MIB_XFRMMAX);
 
+	xfrm_state_update_stats(net);
 	snmp_get_cpu_field_batch(buff, xfrm_mib_list,
 				 net->mib.xfrm_statistics);
 	for (i = 0; xfrm_mib_list[i].name; i++)
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d8701b2d0d57..0c306473a79d 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1957,6 +1957,19 @@ int xfrm_state_check_expire(struct xfrm_state *x)
 }
 EXPORT_SYMBOL(xfrm_state_check_expire);
 
+void xfrm_state_update_stats(struct net *net)
+{
+	struct xfrm_state *x;
+	int i;
+
+	spin_lock_bh(&net->xfrm.xfrm_state_lock);
+	for (i = 0; i <= net->xfrm.state_hmask; i++) {
+		hlist_for_each_entry(x, net->xfrm.state_bydst + i, bydst)
+			xfrm_dev_state_update_stats(x);
+	}
+	spin_unlock_bh(&net->xfrm.xfrm_state_lock);
+}
+
 struct xfrm_state *
 xfrm_state_lookup(struct net *net, u32 mark, const xfrm_address_t *daddr, __be32 spi,
 		  u8 proto, unsigned short family)
-- 
2.43.0

[net-next V4 03/15] net/mlx5e: Connect mlx5 IPsec statistics with XFRM core

[Saeed Mahameed]

From: Leon Romanovsky <leonro@nvidia.com>

Fill integrity, replay and bad trailer counters.

As an example, after simulating replay window attack with 5 packets:
[leonro@c ~]$ grep XfrmInStateSeqError /proc/net/xfrm_stat
XfrmInStateSeqError     	5
[leonro@c ~]$ sudo ip -s x s
<...>
	stats:
	  replay-window 0 replay 5 failed 0

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../mellanox/mlx5/core/en_accel/ipsec.c       | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 46cce4e38d84..c54fd01ea635 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -988,19 +988,37 @@ static void mlx5e_xfrm_update_stats(struct xfrm_state *x)
 {
 	struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);
 	struct mlx5e_ipsec_rule *ipsec_rule = &sa_entry->ipsec_rule;
+	struct net *net = dev_net(x->xso.dev);
 	u64 packets, bytes, lastuse;
 
 	lockdep_assert(lockdep_is_held(&x->lock) ||
 		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_cfg_mutex) ||
 		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_state_lock));
 
-	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ ||
-	    x->xso.type != XFRM_DEV_OFFLOAD_PACKET)
+	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ)
+		return;
+
+	if (sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_IN) {
+		mlx5_fc_query_cached(ipsec_rule->auth.fc, &bytes, &packets, &lastuse);
+		x->stats.integrity_failed += packets;
+		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINSTATEPROTOERROR, packets);
+
+		mlx5_fc_query_cached(ipsec_rule->trailer.fc, &bytes, &packets, &lastuse);
+		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINHDRERROR, packets);
+	}
+
+	if (x->xso.type != XFRM_DEV_OFFLOAD_PACKET)
 		return;
 
 	mlx5_fc_query_cached(ipsec_rule->fc, &bytes, &packets, &lastuse);
 	x->curlft.packets += packets;
 	x->curlft.bytes += bytes;
+
+	if (sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_IN) {
+		mlx5_fc_query_cached(ipsec_rule->replay.fc, &bytes, &packets, &lastuse);
+		x->stats.replay += packets;
+		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR, packets);
+	}
 }
 
 static int mlx5e_xfrm_validate_policy(struct mlx5_core_dev *mdev,
-- 
2.43.0

[net-next V4 04/15] net/mlx5e: Delete obsolete IPsec code

[Saeed Mahameed]

From: Leon Romanovsky <leonro@nvidia.com>

After addition of HW managed counters and implementation drop
in flow steering logic, the code in driver which checks syndrome
is not reachable anymore.

Let's delete it.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../mellanox/mlx5/core/en_accel/ipsec.h       |  1 -
 .../mellanox/mlx5/core/en_accel/ipsec_rxtx.c  | 25 ++-----------------
 .../mellanox/mlx5/core/en_accel/ipsec_rxtx.h  |  1 -
 .../mellanox/mlx5/core/en_accel/ipsec_stats.c |  1 -
 4 files changed, 2 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
index adaea3493193..7d943e93cf6d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
@@ -137,7 +137,6 @@ struct mlx5e_ipsec_hw_stats {
 struct mlx5e_ipsec_sw_stats {
 	atomic64_t ipsec_rx_drop_sp_alloc;
 	atomic64_t ipsec_rx_drop_sadb_miss;
-	atomic64_t ipsec_rx_drop_syndrome;
 	atomic64_t ipsec_tx_drop_bundle;
 	atomic64_t ipsec_tx_drop_no_state;
 	atomic64_t ipsec_tx_drop_not_ip;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
index 51a144246ea6..727fa7c18523 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
@@ -304,12 +304,6 @@ bool mlx5e_ipsec_handle_tx_skb(struct net_device *netdev,
 	return false;
 }
 
-enum {
-	MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_DECRYPTED,
-	MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_AUTH_FAILED,
-	MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_BAD_TRAILER,
-};
-
 void mlx5e_ipsec_offload_handle_rx_skb(struct net_device *netdev,
 				       struct sk_buff *skb,
 				       u32 ipsec_meta_data)
@@ -343,20 +337,7 @@ void mlx5e_ipsec_offload_handle_rx_skb(struct net_device *netdev,
 
 	xo = xfrm_offload(skb);
 	xo->flags = CRYPTO_DONE;
-
-	switch (MLX5_IPSEC_METADATA_SYNDROM(ipsec_meta_data)) {
-	case MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_DECRYPTED:
-		xo->status = CRYPTO_SUCCESS;
-		break;
-	case MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_AUTH_FAILED:
-		xo->status = CRYPTO_TUNNEL_ESP_AUTH_FAILED;
-		break;
-	case MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_BAD_TRAILER:
-		xo->status = CRYPTO_INVALID_PACKET_SYNTAX;
-		break;
-	default:
-		atomic64_inc(&ipsec->sw_stats.ipsec_rx_drop_syndrome);
-	}
+	xo->status = CRYPTO_SUCCESS;
 }
 
 int mlx5_esw_ipsec_rx_make_metadata(struct mlx5e_priv *priv, u32 id, u32 *metadata)
@@ -374,8 +355,6 @@ int mlx5_esw_ipsec_rx_make_metadata(struct mlx5e_priv *priv, u32 id, u32 *metada
 		return err;
 	}
 
-	*metadata = MLX5_IPSEC_METADATA_CREATE(ipsec_obj_id,
-					       MLX5E_IPSEC_OFFLOAD_RX_SYNDROME_DECRYPTED);
-
+	*metadata = ipsec_obj_id;
 	return 0;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h
index 2ed99772f168..82064614846f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.h
@@ -43,7 +43,6 @@
 #define MLX5_IPSEC_METADATA_MARKER(metadata)  (((metadata) >> 31) & 0x1)
 #define MLX5_IPSEC_METADATA_SYNDROM(metadata) (((metadata) >> 24) & GENMASK(5, 0))
 #define MLX5_IPSEC_METADATA_HANDLE(metadata)  ((metadata) & GENMASK(23, 0))
-#define MLX5_IPSEC_METADATA_CREATE(id, syndrome) ((id) | ((syndrome) << 24))
 
 struct mlx5e_accel_tx_ipsec_state {
 	struct xfrm_offload *xo;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_stats.c
index e0e36a09721c..dd36b04e30a0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_stats.c
@@ -51,7 +51,6 @@ static const struct counter_desc mlx5e_ipsec_hw_stats_desc[] = {
 static const struct counter_desc mlx5e_ipsec_sw_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_rx_drop_sp_alloc) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_rx_drop_sadb_miss) },
-	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_rx_drop_syndrome) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_tx_drop_bundle) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_tx_drop_no_state) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_ipsec_sw_stats, ipsec_tx_drop_not_ip) },
-- 
2.43.0

[net-next V4 05/15] Documentation: Fix counter name of mlx5 vnic reporter

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

Fix counter name in documentation of mlx5 vnic health reporter diagnose
output: total_error_queues.

While here fix alignment in the documentation file of another counter,
comp_eq_overrun, as it should have its own line and not be part of
another counter's description.

Example:
$ devlink health diagnose  pci/0000:00:04.0 reporter vnic
 vNIC env counters:
    total_error_queues: 0 send_queue_priority_update_flow: 0
    comp_eq_overrun: 0 async_eq_overrun: 0 cq_overrun: 0
    invalid_command: 0 quota_exceeded_command: 0
    nic_receive_steering_discard: 0

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 Documentation/networking/devlink/mlx5.rst | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/networking/devlink/mlx5.rst b/Documentation/networking/devlink/mlx5.rst
index b9587b3400b9..456985407475 100644
--- a/Documentation/networking/devlink/mlx5.rst
+++ b/Documentation/networking/devlink/mlx5.rst
@@ -250,7 +250,7 @@ them in realtime.
 
 Description of the vnic counters:
 
-- total_q_under_processor_handle
+- total_error_queues
         number of queues in an error state due to
         an async error or errored command.
 - send_queue_priority_update_flow
@@ -259,7 +259,8 @@ Description of the vnic counters:
         number of times CQ entered an error state due to an overflow.
 - async_eq_overrun
         number of times an EQ mapped to async events was overrun.
-        comp_eq_overrun number of times an EQ mapped to completion events was
+- comp_eq_overrun
+        number of times an EQ mapped to completion events was
         overrun.
 - quota_exceeded_command
         number of commands issued and failed due to quota exceeded.
-- 
2.43.0

[net-next V4 06/15] net/mlx5: Rename mlx5_sf_dev_remove

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

Mlx5 has two functions with the same name mlx5_sf_dev_remove. Both are
static, in different files, so no compilation or logical issue, but it
makes it hard to follow the code and some traces even can get both as
one leads to the other [1]. Rename one to mlx5_sf_dev_remove_aux() as it
actually removes the auxiliary device of the SF.

[1]
 mlx5_sf_dev_remove+0x2a/0x70 [mlx5_core]
 auxiliary_bus_remove+0x18/0x30
 device_release_driver_internal+0x199/0x200
 bus_remove_device+0xd7/0x140
 device_del+0x153/0x3d0
 ? process_one_work+0x16a/0x4b0
 mlx5_sf_dev_remove+0x2e/0x90 [mlx5_core]
 mlx5_sf_dev_table_destroy+0xa0/0x100 [mlx5_core]

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c
index c93492b67788..99219ea52c4b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c
@@ -74,7 +74,8 @@ static void mlx5_sf_dev_release(struct device *device)
 	kfree(sf_dev);
 }
 
-static void mlx5_sf_dev_remove(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_dev)
+static void mlx5_sf_dev_remove_aux(struct mlx5_core_dev *dev,
+				   struct mlx5_sf_dev *sf_dev)
 {
 	int id;
 
@@ -138,7 +139,7 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u16 fn_id,
 	return;
 
 xa_err:
-	mlx5_sf_dev_remove(dev, sf_dev);
+	mlx5_sf_dev_remove_aux(dev, sf_dev);
 add_err:
 	mlx5_core_err(dev, "SF DEV: fail device add for index=%d sfnum=%d err=%d\n",
 		      sf_index, sfnum, err);
@@ -149,7 +150,7 @@ static void mlx5_sf_dev_del(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_de
 	struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table;
 
 	xa_erase(&table->devices, sf_index);
-	mlx5_sf_dev_remove(dev, sf_dev);
+	mlx5_sf_dev_remove_aux(dev, sf_dev);
 }
 
 static int
@@ -367,7 +368,7 @@ static void mlx5_sf_dev_destroy_all(struct mlx5_sf_dev_table *table)
 
 	xa_for_each(&table->devices, index, sf_dev) {
 		xa_erase(&table->devices, index);
-		mlx5_sf_dev_remove(table->dev, sf_dev);
+		mlx5_sf_dev_remove_aux(table->dev, sf_dev);
 	}
 }
 
-- 
2.43.0

[net-next V4 07/15] net/mlx5: remove fw_fatal reporter dump option for non PF

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

In case function is not a Physical Function it is not allowed to collect
crdump, so if tried it will fail the fw_fatal health reporter dump
option. Instead of failing on permission, remove the option of fw_fatal
health reporter dump for such function.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/health.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 8ff6dc9bc803..721e343388df 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -646,12 +646,17 @@ static void mlx5_fw_fatal_reporter_err_work(struct work_struct *work)
 	}
 }
 
-static const struct devlink_health_reporter_ops mlx5_fw_fatal_reporter_ops = {
+static const struct devlink_health_reporter_ops mlx5_fw_fatal_reporter_pf_ops = {
 		.name = "fw_fatal",
 		.recover = mlx5_fw_fatal_reporter_recover,
 		.dump = mlx5_fw_fatal_reporter_dump,
 };
 
+static const struct devlink_health_reporter_ops mlx5_fw_fatal_reporter_ops = {
+		.name = "fw_fatal",
+		.recover = mlx5_fw_fatal_reporter_recover,
+};
+
 #define MLX5_FW_REPORTER_ECPF_GRACEFUL_PERIOD 180000
 #define MLX5_FW_REPORTER_PF_GRACEFUL_PERIOD 60000
 #define MLX5_FW_REPORTER_VF_GRACEFUL_PERIOD 30000
@@ -659,10 +664,12 @@ static const struct devlink_health_reporter_ops mlx5_fw_fatal_reporter_ops = {
 
 void mlx5_fw_reporters_create(struct mlx5_core_dev *dev)
 {
+	const struct devlink_health_reporter_ops *fw_fatal_ops;
 	struct mlx5_core_health *health = &dev->priv.health;
 	struct devlink *devlink = priv_to_devlink(dev);
 	u64 grace_period;
 
+	fw_fatal_ops = &mlx5_fw_fatal_reporter_pf_ops;
 	if (mlx5_core_is_ecpf(dev)) {
 		grace_period = MLX5_FW_REPORTER_ECPF_GRACEFUL_PERIOD;
 	} else if (mlx5_core_is_pf(dev)) {
@@ -670,6 +677,7 @@ void mlx5_fw_reporters_create(struct mlx5_core_dev *dev)
 	} else {
 		/* VF or SF */
 		grace_period = MLX5_FW_REPORTER_DEFAULT_GRACEFUL_PERIOD;
+		fw_fatal_ops = &mlx5_fw_fatal_reporter_ops;
 	}
 
 	health->fw_reporter =
@@ -681,7 +689,7 @@ void mlx5_fw_reporters_create(struct mlx5_core_dev *dev)
 
 	health->fw_fatal_reporter =
 		devl_health_reporter_create(devlink,
-					    &mlx5_fw_fatal_reporter_ops,
+					    fw_fatal_ops,
 					    grace_period,
 					    dev);
 	if (IS_ERR(health->fw_fatal_reporter))
-- 
2.43.0

[net-next V4 08/15] net/mlx5: remove fw reporter dump option for non PF

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

In case function is not a Physical Function it is not allowed to get FW
core dump, so if tried it will fail the fw health reporter dump option.
Instead of failing, remove the option of fw_fatal health reporter dump
for such function.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/health.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 721e343388df..5c2ac2d9dbd9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -555,12 +555,17 @@ static void mlx5_fw_reporter_err_work(struct work_struct *work)
 				      &fw_reporter_ctx);
 }
 
-static const struct devlink_health_reporter_ops mlx5_fw_reporter_ops = {
+static const struct devlink_health_reporter_ops mlx5_fw_reporter_pf_ops = {
 		.name = "fw",
 		.diagnose = mlx5_fw_reporter_diagnose,
 		.dump = mlx5_fw_reporter_dump,
 };
 
+static const struct devlink_health_reporter_ops mlx5_fw_reporter_ops = {
+		.name = "fw",
+		.diagnose = mlx5_fw_reporter_diagnose,
+};
+
 static int
 mlx5_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
 			       void *priv_ctx,
@@ -666,10 +671,12 @@ void mlx5_fw_reporters_create(struct mlx5_core_dev *dev)
 {
 	const struct devlink_health_reporter_ops *fw_fatal_ops;
 	struct mlx5_core_health *health = &dev->priv.health;
+	const struct devlink_health_reporter_ops *fw_ops;
 	struct devlink *devlink = priv_to_devlink(dev);
 	u64 grace_period;
 
 	fw_fatal_ops = &mlx5_fw_fatal_reporter_pf_ops;
+	fw_ops = &mlx5_fw_reporter_pf_ops;
 	if (mlx5_core_is_ecpf(dev)) {
 		grace_period = MLX5_FW_REPORTER_ECPF_GRACEFUL_PERIOD;
 	} else if (mlx5_core_is_pf(dev)) {
@@ -678,11 +685,11 @@ void mlx5_fw_reporters_create(struct mlx5_core_dev *dev)
 		/* VF or SF */
 		grace_period = MLX5_FW_REPORTER_DEFAULT_GRACEFUL_PERIOD;
 		fw_fatal_ops = &mlx5_fw_fatal_reporter_ops;
+		fw_ops = &mlx5_fw_reporter_ops;
 	}
 
 	health->fw_reporter =
-		devl_health_reporter_create(devlink, &mlx5_fw_reporter_ops,
-					    0, dev);
+		devl_health_reporter_create(devlink, fw_ops, 0, dev);
 	if (IS_ERR(health->fw_reporter))
 		mlx5_core_warn(dev, "Failed to create fw reporter, err = %ld\n",
 			       PTR_ERR(health->fw_reporter));
-- 
2.43.0

[net-next V4 09/15] net/mlx5: SF, Stop waiting for FW as teardown was called

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

When PF/VF teardown is called the driver sets the flag
MLX5_BREAK_FW_WAIT to stop waiting for FW loading and initializing. Same
should be applied to SF driver teardown to cut waiting time. On
mlx5_sf_dev_remove() set the flag before draining health WQ as recovery
flow may also wait for FW reloading while it is not relevant anymore.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../mellanox/mlx5/core/sf/dev/driver.c        | 21 ++++++++++++-------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c
index 169c2c68ed5c..bc863e1f062e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c
@@ -95,24 +95,29 @@ static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxilia
 static void mlx5_sf_dev_remove(struct auxiliary_device *adev)
 {
 	struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev);
-	struct devlink *devlink = priv_to_devlink(sf_dev->mdev);
+	struct mlx5_core_dev *mdev = sf_dev->mdev;
+	struct devlink *devlink;
 
-	mlx5_drain_health_wq(sf_dev->mdev);
+	devlink = priv_to_devlink(mdev);
+	set_bit(MLX5_BREAK_FW_WAIT, &mdev->intf_state);
+	mlx5_drain_health_wq(mdev);
 	devlink_unregister(devlink);
-	if (mlx5_dev_is_lightweight(sf_dev->mdev))
-		mlx5_uninit_one_light(sf_dev->mdev);
+	if (mlx5_dev_is_lightweight(mdev))
+		mlx5_uninit_one_light(mdev);
 	else
-		mlx5_uninit_one(sf_dev->mdev);
-	iounmap(sf_dev->mdev->iseg);
-	mlx5_mdev_uninit(sf_dev->mdev);
+		mlx5_uninit_one(mdev);
+	iounmap(mdev->iseg);
+	mlx5_mdev_uninit(mdev);
 	mlx5_devlink_free(devlink);
 }
 
 static void mlx5_sf_dev_shutdown(struct auxiliary_device *adev)
 {
 	struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev);
+	struct mlx5_core_dev *mdev = sf_dev->mdev;
 
-	mlx5_unload_one(sf_dev->mdev, false);
+	set_bit(MLX5_BREAK_FW_WAIT, &mdev->intf_state);
+	mlx5_unload_one(mdev, false);
 }
 
 static const struct auxiliary_device_id mlx5_sf_dev_id_table[] = {
-- 
2.43.0

[net-next V4 10/15] net/mlx5: Return specific error code for timeout on wait_fw_init

[Saeed Mahameed]

From: Moshe Shemesh <moshe@nvidia.com>

The function wait_fw_init() returns same error code either if it breaks
waiting due to timeout or other reason. Thus, the function callers print
error message on timeout without checking error type.

Return different error code for different failure reason and print error
message accordingly on wait_fw_init().

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/main.c    | 38 +++++++++----------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index bccf6e53556c..c2593625c09a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -187,31 +187,36 @@ static struct mlx5_profile profile[] = {
 };
 
 static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili,
-			u32 warn_time_mili)
+			u32 warn_time_mili, const char *init_state)
 {
 	unsigned long warn = jiffies + msecs_to_jiffies(warn_time_mili);
 	unsigned long end = jiffies + msecs_to_jiffies(max_wait_mili);
 	u32 fw_initializing;
-	int err = 0;
 
 	do {
 		fw_initializing = ioread32be(&dev->iseg->initializing);
 		if (!(fw_initializing >> 31))
 			break;
-		if (time_after(jiffies, end) ||
-		    test_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state)) {
-			err = -EBUSY;
-			break;
+		if (time_after(jiffies, end)) {
+			mlx5_core_err(dev, "Firmware over %u MS in %s state, aborting\n",
+				      max_wait_mili, init_state);
+			return -ETIMEDOUT;
+		}
+		if (test_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state)) {
+			mlx5_core_warn(dev, "device is being removed, stop waiting for FW %s\n",
+				       init_state);
+			return -ENODEV;
 		}
 		if (warn_time_mili && time_after(jiffies, warn)) {
-			mlx5_core_warn(dev, "Waiting for FW initialization, timeout abort in %ds (0x%x)\n",
-				       jiffies_to_msecs(end - warn) / 1000, fw_initializing);
+			mlx5_core_warn(dev, "Waiting for FW %s, timeout abort in %ds (0x%x)\n",
+				       init_state, jiffies_to_msecs(end - warn) / 1000,
+				       fw_initializing);
 			warn = jiffies + msecs_to_jiffies(warn_time_mili);
 		}
 		msleep(mlx5_tout_ms(dev, FW_PRE_INIT_WAIT));
 	} while (true);
 
-	return err;
+	return 0;
 }
 
 static void mlx5_set_driver_version(struct mlx5_core_dev *dev)
@@ -1151,12 +1156,10 @@ static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeou
 	/* wait for firmware to accept initialization segments configurations
 	 */
 	err = wait_fw_init(dev, timeout,
-			   mlx5_tout_ms(dev, FW_PRE_INIT_WARN_MESSAGE_INTERVAL));
-	if (err) {
-		mlx5_core_err(dev, "Firmware over %llu MS in pre-initializing state, aborting\n",
-			      timeout);
+			   mlx5_tout_ms(dev, FW_PRE_INIT_WARN_MESSAGE_INTERVAL),
+			   "pre-initializing");
+	if (err)
 		return err;
-	}
 
 	err = mlx5_cmd_enable(dev);
 	if (err) {
@@ -1166,12 +1169,9 @@ static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeou
 
 	mlx5_tout_query_iseg(dev);
 
-	err = wait_fw_init(dev, mlx5_tout_ms(dev, FW_INIT), 0);
-	if (err) {
-		mlx5_core_err(dev, "Firmware over %llu MS in initializing state, aborting\n",
-			      mlx5_tout_ms(dev, FW_INIT));
+	err = wait_fw_init(dev, mlx5_tout_ms(dev, FW_INIT), 0, "initializing");
+	if (err)
 		goto err_cmd_cleanup;
-	}
 
 	dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
 	mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP);
-- 
2.43.0

[net-next V4 11/15] net/mlx5: Remove initial segmentation duplicate definitions

[Saeed Mahameed]

From: Gal Pressman <gal@nvidia.com>

Device definitions belong in mlx5_ifc, remove the duplicates in
mlx5_core.h.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fw.c  |  6 +++---
 .../net/ethernet/mellanox/mlx5/core/health.c  | 20 +++++++++----------
 .../ethernet/mellanox/mlx5/core/mlx5_core.h   |  7 -------
 include/linux/mlx5/mlx5_ifc.h                 |  1 +
 4 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 58f4c0d0fafa..e7faf7e73ca4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -366,18 +366,18 @@ int mlx5_cmd_fast_teardown_hca(struct mlx5_core_dev *dev)
 		return -EIO;
 	}
 
-	mlx5_set_nic_state(dev, MLX5_NIC_IFC_DISABLED);
+	mlx5_set_nic_state(dev, MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED);
 
 	/* Loop until device state turns to disable */
 	end = jiffies + msecs_to_jiffies(delay_ms);
 	do {
-		if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_DISABLED)
+		if (mlx5_get_nic_state(dev) == MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED)
 			break;
 
 		cond_resched();
 	} while (!time_after(jiffies, end));
 
-	if (mlx5_get_nic_state(dev) != MLX5_NIC_IFC_DISABLED) {
+	if (mlx5_get_nic_state(dev) != MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED) {
 		dev_err(&dev->pdev->dev, "NIC IFC still %d after %lums.\n",
 			mlx5_get_nic_state(dev), delay_ms);
 		return -EIO;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 5c2ac2d9dbd9..9463ede84d8d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -116,9 +116,9 @@ u32 mlx5_health_check_fatal_sensors(struct mlx5_core_dev *dev)
 		return MLX5_SENSOR_PCI_COMM_ERR;
 	if (pci_channel_offline(dev->pdev))
 		return MLX5_SENSOR_PCI_ERR;
-	if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_DISABLED)
+	if (mlx5_get_nic_state(dev) == MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED)
 		return MLX5_SENSOR_NIC_DISABLED;
-	if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_SW_RESET)
+	if (mlx5_get_nic_state(dev) == MLX5_INITIAL_SEG_NIC_INTERFACE_SW_RESET)
 		return MLX5_SENSOR_NIC_SW_RESET;
 	if (sensor_fw_synd_rfr(dev))
 		return MLX5_SENSOR_FW_SYND_RFR;
@@ -185,7 +185,7 @@ static bool reset_fw_if_needed(struct mlx5_core_dev *dev)
 	/* Write the NIC interface field to initiate the reset, the command
 	 * interface address also resides here, don't overwrite it.
 	 */
-	mlx5_set_nic_state(dev, MLX5_NIC_IFC_SW_RESET);
+	mlx5_set_nic_state(dev, MLX5_INITIAL_SEG_NIC_INTERFACE_SW_RESET);
 
 	return true;
 }
@@ -246,13 +246,13 @@ void mlx5_error_sw_reset(struct mlx5_core_dev *dev)
 	/* Recover from SW reset */
 	end = jiffies + msecs_to_jiffies(delay_ms);
 	do {
-		if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_DISABLED)
+		if (mlx5_get_nic_state(dev) == MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED)
 			break;
 
 		msleep(20);
 	} while (!time_after(jiffies, end));
 
-	if (mlx5_get_nic_state(dev) != MLX5_NIC_IFC_DISABLED) {
+	if (mlx5_get_nic_state(dev) != MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED) {
 		dev_err(&dev->pdev->dev, "NIC IFC still %d after %lums.\n",
 			mlx5_get_nic_state(dev), delay_ms);
 	}
@@ -272,26 +272,26 @@ static void mlx5_handle_bad_state(struct mlx5_core_dev *dev)
 	u8 nic_interface = mlx5_get_nic_state(dev);
 
 	switch (nic_interface) {
-	case MLX5_NIC_IFC_FULL:
+	case MLX5_INITIAL_SEG_NIC_INTERFACE_FULL_DRIVER:
 		mlx5_core_warn(dev, "Expected to see disabled NIC but it is full driver\n");
 		break;
 
-	case MLX5_NIC_IFC_DISABLED:
+	case MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED:
 		mlx5_core_warn(dev, "starting teardown\n");
 		break;
 
-	case MLX5_NIC_IFC_NO_DRAM_NIC:
+	case MLX5_INITIAL_SEG_NIC_INTERFACE_NO_DRAM_NIC:
 		mlx5_core_warn(dev, "Expected to see disabled NIC but it is no dram nic\n");
 		break;
 
-	case MLX5_NIC_IFC_SW_RESET:
+	case MLX5_INITIAL_SEG_NIC_INTERFACE_SW_RESET:
 		/* The IFC mode field is 3 bits, so it will read 0x7 in 2 cases:
 		 * 1. PCI has been disabled (ie. PCI-AER, PF driver unloaded
 		 *    and this is a VF), this is not recoverable by SW reset.
 		 *    Logging of this is handled elsewhere.
 		 * 2. FW reset has been issued by another function, driver can
 		 *    be reloaded to recover after the mode switches to
-		 *    MLX5_NIC_IFC_DISABLED.
+		 *    MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED.
 		 */
 		if (dev->priv.health.fatal_error != MLX5_SENSOR_PCI_COMM_ERR)
 			mlx5_core_warn(dev, "NIC SW reset in progress\n");
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index a79b7959361b..58732f44940f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -312,13 +312,6 @@ static inline int mlx5_rescan_drivers(struct mlx5_core_dev *dev)
 	return ret;
 }
 
-enum {
-	MLX5_NIC_IFC_FULL		= 0,
-	MLX5_NIC_IFC_DISABLED		= 1,
-	MLX5_NIC_IFC_NO_DRAM_NIC	= 2,
-	MLX5_NIC_IFC_SW_RESET		= 7
-};
-
 u8 mlx5_get_nic_state(struct mlx5_core_dev *dev);
 void mlx5_set_nic_state(struct mlx5_core_dev *dev, u8 state);
 
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 6c44f107b8ba..7f5e846eb46d 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -10661,6 +10661,7 @@ enum {
 	MLX5_INITIAL_SEG_NIC_INTERFACE_FULL_DRIVER  = 0x0,
 	MLX5_INITIAL_SEG_NIC_INTERFACE_DISABLED     = 0x1,
 	MLX5_INITIAL_SEG_NIC_INTERFACE_NO_DRAM_NIC  = 0x2,
+	MLX5_INITIAL_SEG_NIC_INTERFACE_SW_RESET     = 0x7,
 };
 
 enum {
-- 
2.43.0

[net-next V4 12/15] net/mlx5: Change missing SyncE capability print to debug

[Saeed Mahameed]

From: Gal Pressman <gal@nvidia.com>

Lack of SyncE capability should not emit a warning, change the print to
debug level.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index cf0477f53dc4..47e7c2639774 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -210,7 +210,7 @@ static bool is_dpll_supported(struct mlx5_core_dev *dev)
 		return false;
 
 	if (!MLX5_CAP_MCAM_REG2(dev, synce_registers)) {
-		mlx5_core_warn(dev, "Missing SyncE capability\n");
+		mlx5_core_dbg(dev, "Missing SyncE capability\n");
 		return false;
 	}
 
-- 
2.43.0

[net-next V4 13/15] net/mlx5: DR, Change SWS usage to debug fs seq_file interface

[Saeed Mahameed]

From: Hamdan Igbaria <hamdani@nvidia.com>

In current SWS debug dump mechanism we implement the seq_file interface,
but we only implement the 'show' callback to dump the whole steering DB
with a single call to this callback.

However, for large data size the seq_printf function will fail to
allocate a buffer with the adequate capacity to hold such data.

This patch solves this problem by utilizing the seq_file interface
mechanism in the following way:
 - when the user triggers a dump procedure, we will allocate a list of
   buffers that hold the whole data dump (in the start callback)
 - using the start, next, show and stop callbacks of the seq_file
   API we iterate through the list and dump the whole data

Signed-off-by: Hamdan Igbaria <hamdani@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../mellanox/mlx5/core/steering/dr_dbg.c      | 734 ++++++++++++++----
 .../mellanox/mlx5/core/steering/dr_dbg.h      |  20 +
 2 files changed, 620 insertions(+), 134 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
index 7e36e1062139..64f4cc284aea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
@@ -54,6 +54,107 @@ enum dr_dump_rec_type {
 	DR_DUMP_REC_TYPE_ACTION_MATCH_RANGE = 3425,
 };
 
+static struct mlx5dr_dbg_dump_buff *
+mlx5dr_dbg_dump_data_init_new_buff(struct mlx5dr_dbg_dump_data *dump_data)
+{
+	struct mlx5dr_dbg_dump_buff *new_buff;
+
+	new_buff = kzalloc(sizeof(*new_buff), GFP_KERNEL);
+	if (!new_buff)
+		return NULL;
+
+	new_buff->buff = kvzalloc(MLX5DR_DEBUG_DUMP_BUFF_SIZE, GFP_KERNEL);
+	if (!new_buff->buff) {
+		kfree(new_buff);
+		return NULL;
+	}
+
+	INIT_LIST_HEAD(&new_buff->node);
+	list_add_tail(&new_buff->node, &dump_data->buff_list);
+
+	return new_buff;
+}
+
+static struct mlx5dr_dbg_dump_data *
+mlx5dr_dbg_create_dump_data(void)
+{
+	struct mlx5dr_dbg_dump_data *dump_data;
+
+	dump_data = kzalloc(sizeof(*dump_data), GFP_KERNEL);
+	if (!dump_data)
+		return NULL;
+
+	INIT_LIST_HEAD(&dump_data->buff_list);
+
+	if (!mlx5dr_dbg_dump_data_init_new_buff(dump_data)) {
+		kfree(dump_data);
+		return NULL;
+	}
+
+	return dump_data;
+}
+
+static void
+mlx5dr_dbg_destroy_dump_data(struct mlx5dr_dbg_dump_data *dump_data)
+{
+	struct mlx5dr_dbg_dump_buff *dump_buff, *tmp_buff;
+
+	if (!dump_data)
+		return;
+
+	list_for_each_entry_safe(dump_buff, tmp_buff, &dump_data->buff_list, node) {
+		kvfree(dump_buff->buff);
+		list_del(&dump_buff->node);
+		kfree(dump_buff);
+	}
+
+	kfree(dump_data);
+}
+
+static int
+mlx5dr_dbg_dump_data_print(struct seq_file *file, char *str, u32 size)
+{
+	struct mlx5dr_domain *dmn = file->private;
+	struct mlx5dr_dbg_dump_data *dump_data;
+	struct mlx5dr_dbg_dump_buff *buff;
+	u32 buff_capacity, write_size;
+	int remain_size, ret;
+
+	if (size >= MLX5DR_DEBUG_DUMP_BUFF_SIZE)
+		return -EINVAL;
+
+	dump_data = dmn->dump_info.dump_data;
+	buff = list_last_entry(&dump_data->buff_list,
+			       struct mlx5dr_dbg_dump_buff, node);
+
+	buff_capacity = (MLX5DR_DEBUG_DUMP_BUFF_SIZE - 1) - buff->index;
+	remain_size = buff_capacity - size;
+	write_size = (remain_size > 0) ? size : buff_capacity;
+
+	if (likely(write_size)) {
+		ret = snprintf(buff->buff + buff->index, write_size + 1, "%s", str);
+		if (ret < 0)
+			return ret;
+
+		buff->index += write_size;
+	}
+
+	if (remain_size < 0) {
+		remain_size *= -1;
+		buff = mlx5dr_dbg_dump_data_init_new_buff(dump_data);
+		if (!buff)
+			return -ENOMEM;
+
+		ret = snprintf(buff->buff, remain_size + 1, "%s", str + write_size);
+		if (ret < 0)
+			return ret;
+
+		buff->index += remain_size;
+	}
+
+	return 0;
+}
+
 void mlx5dr_dbg_tbl_add(struct mlx5dr_table *tbl)
 {
 	mutex_lock(&tbl->dmn->dump_info.dbg_mutex);
@@ -109,36 +210,68 @@ dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
 {
 	struct mlx5dr_action *action = action_mem->action;
 	const u64 action_id = DR_DBG_PTR_TO_ID(action);
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	u64 hit_tbl_ptr, miss_tbl_ptr;
 	u32 hit_tbl_id, miss_tbl_id;
+	int ret;
 
 	switch (action->action_type) {
 	case DR_ACTION_TYP_DROP:
-		seq_printf(file, "%d,0x%llx,0x%llx\n",
-			   DR_DUMP_REC_TYPE_ACTION_DROP, action_id, rule_id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx\n",
+			       DR_DUMP_REC_TYPE_ACTION_DROP, action_id,
+			       rule_id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_FT:
 		if (action->dest_tbl->is_fw_tbl)
-			seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x\n",
-				   DR_DUMP_REC_TYPE_ACTION_FT, action_id,
-				   rule_id, action->dest_tbl->fw_tbl.id,
-				   -1);
+			ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+				       "%d,0x%llx,0x%llx,0x%x,0x%x\n",
+				       DR_DUMP_REC_TYPE_ACTION_FT, action_id,
+				       rule_id, action->dest_tbl->fw_tbl.id,
+				       -1);
 		else
-			seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%llx\n",
-				   DR_DUMP_REC_TYPE_ACTION_FT, action_id,
-				   rule_id, action->dest_tbl->tbl->table_id,
-				   DR_DBG_PTR_TO_ID(action->dest_tbl->tbl));
+			ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+				       "%d,0x%llx,0x%llx,0x%x,0x%llx\n",
+				       DR_DUMP_REC_TYPE_ACTION_FT, action_id,
+				       rule_id, action->dest_tbl->tbl->table_id,
+				       DR_DBG_PTR_TO_ID(action->dest_tbl->tbl));
+
+		if (ret < 0)
+			return ret;
 
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_CTR:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_CTR, action_id, rule_id,
-			   action->ctr->ctr_id + action->ctr->offset);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_CTR, action_id, rule_id,
+			       action->ctr->ctr_id + action->ctr->offset);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_TAG:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_TAG, action_id, rule_id,
-			   action->flow_tag->flow_tag);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_TAG, action_id, rule_id,
+			       action->flow_tag->flow_tag);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_MODIFY_HDR:
 	{
@@ -150,83 +283,171 @@ dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
 
 		ptrn_arg = !action->rewrite->single_action_opt && ptrn && arg;
 
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x,%d,0x%x,0x%x,0x%x",
-			   DR_DUMP_REC_TYPE_ACTION_MODIFY_HDR, action_id,
-			   rule_id, action->rewrite->index,
-			   action->rewrite->single_action_opt,
-			   ptrn_arg ? action->rewrite->num_of_actions : 0,
-			   ptrn_arg ? ptrn->index : 0,
-			   ptrn_arg ? mlx5dr_arg_get_obj_id(arg) : 0);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x,%d,0x%x,0x%x,0x%x",
+			       DR_DUMP_REC_TYPE_ACTION_MODIFY_HDR, action_id,
+			       rule_id, action->rewrite->index,
+			       action->rewrite->single_action_opt,
+			       ptrn_arg ? action->rewrite->num_of_actions : 0,
+			       ptrn_arg ? ptrn->index : 0,
+			       ptrn_arg ? mlx5dr_arg_get_obj_id(arg) : 0);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 
 		if (ptrn_arg) {
 			for (i = 0; i < action->rewrite->num_of_actions; i++) {
-				seq_printf(file, ",0x%016llx",
-					   be64_to_cpu(((__be64 *)rewrite_data)[i]));
+				ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+					       ",0x%016llx",
+					       be64_to_cpu(((__be64 *)rewrite_data)[i]));
+				if (ret < 0)
+					return ret;
+
+				ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+				if (ret)
+					return ret;
 			}
 		}
 
-		seq_puts(file, "\n");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, "\n");
+		if (ret < 0)
+			return ret;
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	}
 	case DR_ACTION_TYP_VPORT:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_VPORT, action_id, rule_id,
-			   action->vport->caps->num);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_VPORT, action_id, rule_id,
+			       action->vport->caps->num);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_TNL_L2_TO_L2:
-		seq_printf(file, "%d,0x%llx,0x%llx\n",
-			   DR_DUMP_REC_TYPE_ACTION_DECAP_L2, action_id,
-			   rule_id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx\n",
+			       DR_DUMP_REC_TYPE_ACTION_DECAP_L2, action_id,
+			       rule_id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_TNL_L3_TO_L2:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_DECAP_L3, action_id,
-			   rule_id,
-			   (action->rewrite->ptrn && action->rewrite->arg) ?
-			   mlx5dr_arg_get_obj_id(action->rewrite->arg) :
-			   action->rewrite->index);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_DECAP_L3, action_id,
+			       rule_id,
+			       (action->rewrite->ptrn && action->rewrite->arg) ?
+			       mlx5dr_arg_get_obj_id(action->rewrite->arg) :
+			       action->rewrite->index);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_L2_TO_TNL_L2:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_ENCAP_L2, action_id,
-			   rule_id, action->reformat->id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_ENCAP_L2, action_id,
+			       rule_id, action->reformat->id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_L2_TO_TNL_L3:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_ENCAP_L3, action_id,
-			   rule_id, action->reformat->id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_ENCAP_L3, action_id,
+			       rule_id, action->reformat->id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_POP_VLAN:
-		seq_printf(file, "%d,0x%llx,0x%llx\n",
-			   DR_DUMP_REC_TYPE_ACTION_POP_VLAN, action_id,
-			   rule_id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx\n",
+			       DR_DUMP_REC_TYPE_ACTION_POP_VLAN, action_id,
+			       rule_id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_PUSH_VLAN:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_PUSH_VLAN, action_id,
-			   rule_id, action->push_vlan->vlan_hdr);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_PUSH_VLAN, action_id,
+			       rule_id, action->push_vlan->vlan_hdr);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_INSERT_HDR:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_INSERT_HDR, action_id,
-			   rule_id, action->reformat->id,
-			   action->reformat->param_0,
-			   action->reformat->param_1);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_INSERT_HDR, action_id,
+			       rule_id, action->reformat->id,
+			       action->reformat->param_0,
+			       action->reformat->param_1);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_REMOVE_HDR:
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_REMOVE_HDR, action_id,
-			   rule_id, action->reformat->id,
-			   action->reformat->param_0,
-			   action->reformat->param_1);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_REMOVE_HDR, action_id,
+			       rule_id, action->reformat->id,
+			       action->reformat->param_0,
+			       action->reformat->param_1);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_SAMPLER:
-		seq_printf(file,
-			   "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x,0x%llx,0x%llx\n",
-			   DR_DUMP_REC_TYPE_ACTION_SAMPLER, action_id, rule_id,
-			   0, 0, action->sampler->sampler_id,
-			   action->sampler->rx_icm_addr,
-			   action->sampler->tx_icm_addr);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x,0x%llx,0x%llx\n",
+			       DR_DUMP_REC_TYPE_ACTION_SAMPLER, action_id,
+			       rule_id, 0, 0, action->sampler->sampler_id,
+			       action->sampler->rx_icm_addr,
+			       action->sampler->tx_icm_addr);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	case DR_ACTION_TYP_RANGE:
 		if (action->range->hit_tbl_action->dest_tbl->is_fw_tbl) {
@@ -247,10 +468,17 @@ dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
 				DR_DBG_PTR_TO_ID(action->range->miss_tbl_action->dest_tbl->tbl);
 		}
 
-		seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%llx,0x%x,0x%llx,0x%x\n",
-			   DR_DUMP_REC_TYPE_ACTION_MATCH_RANGE, action_id, rule_id,
-			   hit_tbl_id, hit_tbl_ptr, miss_tbl_id, miss_tbl_ptr,
-			   action->range->definer_id);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,0x%llx,0x%x,0x%llx,0x%x,0x%llx,0x%x\n",
+			       DR_DUMP_REC_TYPE_ACTION_MATCH_RANGE, action_id,
+			       rule_id, hit_tbl_id, hit_tbl_ptr, miss_tbl_id,
+			       miss_tbl_ptr, action->range->definer_id);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 		break;
 	default:
 		return 0;
@@ -263,8 +491,10 @@ static int
 dr_dump_rule_mem(struct seq_file *file, struct mlx5dr_ste *ste,
 		 bool is_rx, const u64 rule_id, u8 format_ver)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	char hw_ste_dump[DR_HEX_SIZE];
 	u32 mem_rec_type;
+	int ret;
 
 	if (format_ver == MLX5_STEERING_FORMAT_CONNECTX_5) {
 		mem_rec_type = is_rx ? DR_DUMP_REC_TYPE_RULE_RX_ENTRY_V0 :
@@ -277,9 +507,16 @@ dr_dump_rule_mem(struct seq_file *file, struct mlx5dr_ste *ste,
 	dr_dump_hex_print(hw_ste_dump, (char *)mlx5dr_ste_get_hw_ste(ste),
 			  DR_STE_SIZE_REDUCED);
 
-	seq_printf(file, "%d,0x%llx,0x%llx,%s\n", mem_rec_type,
-		   dr_dump_icm_to_idx(mlx5dr_ste_get_icm_addr(ste)), rule_id,
-		   hw_ste_dump);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx,%s\n", mem_rec_type,
+		       dr_dump_icm_to_idx(mlx5dr_ste_get_icm_addr(ste)),
+		       rule_id, hw_ste_dump);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	return 0;
 }
@@ -309,6 +546,7 @@ static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
 {
 	struct mlx5dr_rule_action_member *action_mem;
 	const u64 rule_id = DR_DBG_PTR_TO_ID(rule);
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	struct mlx5dr_rule_rx_tx *rx = &rule->rx;
 	struct mlx5dr_rule_rx_tx *tx = &rule->tx;
 	u8 format_ver;
@@ -316,8 +554,15 @@ static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
 
 	format_ver = rule->matcher->tbl->dmn->info.caps.sw_format_ver;
 
-	seq_printf(file, "%d,0x%llx,0x%llx\n", DR_DUMP_REC_TYPE_RULE, rule_id,
-		   DR_DBG_PTR_TO_ID(rule->matcher));
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx\n", DR_DUMP_REC_TYPE_RULE,
+		       rule_id, DR_DBG_PTR_TO_ID(rule->matcher));
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	if (rx->nic_matcher) {
 		ret = dr_dump_rule_rx_tx(file, rx, true, rule_id, format_ver);
@@ -344,46 +589,94 @@ static int
 dr_dump_matcher_mask(struct seq_file *file, struct mlx5dr_match_param *mask,
 		     u8 criteria, const u64 matcher_id)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	char dump[DR_HEX_SIZE];
+	int ret;
 
-	seq_printf(file, "%d,0x%llx,", DR_DUMP_REC_TYPE_MATCHER_MASK,
-		   matcher_id);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, "%d,0x%llx,",
+		       DR_DUMP_REC_TYPE_MATCHER_MASK, matcher_id);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	if (criteria & DR_MATCHER_CRITERIA_OUTER) {
 		dr_dump_hex_print(dump, (char *)&mask->outer, sizeof(mask->outer));
-		seq_printf(file, "%s,", dump);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%s,", dump);
 	} else {
-		seq_puts(file, ",");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, ",");
 	}
 
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	if (criteria & DR_MATCHER_CRITERIA_INNER) {
 		dr_dump_hex_print(dump, (char *)&mask->inner, sizeof(mask->inner));
-		seq_printf(file, "%s,", dump);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%s,", dump);
 	} else {
-		seq_puts(file, ",");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, ",");
 	}
 
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	if (criteria & DR_MATCHER_CRITERIA_MISC) {
 		dr_dump_hex_print(dump, (char *)&mask->misc, sizeof(mask->misc));
-		seq_printf(file, "%s,", dump);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%s,", dump);
 	} else {
-		seq_puts(file, ",");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, ",");
 	}
 
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	if (criteria & DR_MATCHER_CRITERIA_MISC2) {
 		dr_dump_hex_print(dump, (char *)&mask->misc2, sizeof(mask->misc2));
-		seq_printf(file, "%s,", dump);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%s,", dump);
 	} else {
-		seq_puts(file, ",");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, ",");
 	}
 
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	if (criteria & DR_MATCHER_CRITERIA_MISC3) {
 		dr_dump_hex_print(dump, (char *)&mask->misc3, sizeof(mask->misc3));
-		seq_printf(file, "%s\n", dump);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%s\n", dump);
 	} else {
-		seq_puts(file, ",\n");
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH, ",\n");
 	}
 
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
@@ -391,9 +684,19 @@ static int
 dr_dump_matcher_builder(struct seq_file *file, struct mlx5dr_ste_build *builder,
 			u32 index, bool is_rx, const u64 matcher_id)
 {
-	seq_printf(file, "%d,0x%llx,%d,%d,0x%x\n",
-		   DR_DUMP_REC_TYPE_MATCHER_BUILDER, matcher_id, index, is_rx,
-		   builder->lu_type);
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
+	int ret;
+
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,%d,%d,0x%x\n",
+		       DR_DUMP_REC_TYPE_MATCHER_BUILDER, matcher_id, index,
+		       is_rx, builder->lu_type);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	return 0;
 }
@@ -403,6 +706,7 @@ dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
 		      struct mlx5dr_matcher_rx_tx *matcher_rx_tx,
 		      const u64 matcher_id)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	enum dr_dump_rec_type rec_type;
 	u64 s_icm_addr, e_icm_addr;
 	int i, ret;
@@ -412,11 +716,19 @@ dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
 
 	s_icm_addr = mlx5dr_icm_pool_get_chunk_icm_addr(matcher_rx_tx->s_htbl->chunk);
 	e_icm_addr = mlx5dr_icm_pool_get_chunk_icm_addr(matcher_rx_tx->e_anchor->chunk);
-	seq_printf(file, "%d,0x%llx,0x%llx,%d,0x%llx,0x%llx\n",
-		   rec_type, DR_DBG_PTR_TO_ID(matcher_rx_tx),
-		   matcher_id, matcher_rx_tx->num_of_builders,
-		   dr_dump_icm_to_idx(s_icm_addr),
-		   dr_dump_icm_to_idx(e_icm_addr));
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx,%d,0x%llx,0x%llx\n",
+		       rec_type, DR_DBG_PTR_TO_ID(matcher_rx_tx),
+		       matcher_id, matcher_rx_tx->num_of_builders,
+		       dr_dump_icm_to_idx(s_icm_addr),
+		       dr_dump_icm_to_idx(e_icm_addr));
+
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	for (i = 0; i < matcher_rx_tx->num_of_builders; i++) {
 		ret = dr_dump_matcher_builder(file,
@@ -434,13 +746,22 @@ dr_dump_matcher(struct seq_file *file, struct mlx5dr_matcher *matcher)
 {
 	struct mlx5dr_matcher_rx_tx *rx = &matcher->rx;
 	struct mlx5dr_matcher_rx_tx *tx = &matcher->tx;
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	u64 matcher_id;
 	int ret;
 
 	matcher_id = DR_DBG_PTR_TO_ID(matcher);
 
-	seq_printf(file, "%d,0x%llx,0x%llx,%d\n", DR_DUMP_REC_TYPE_MATCHER,
-		   matcher_id, DR_DBG_PTR_TO_ID(matcher->tbl), matcher->prio);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx,%d\n", DR_DUMP_REC_TYPE_MATCHER,
+		       matcher_id, DR_DBG_PTR_TO_ID(matcher->tbl),
+		       matcher->prio);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	ret = dr_dump_matcher_mask(file, &matcher->mask,
 				   matcher->match_criteria, matcher_id);
@@ -486,15 +807,24 @@ dr_dump_table_rx_tx(struct seq_file *file, bool is_rx,
 		    struct mlx5dr_table_rx_tx *table_rx_tx,
 		    const u64 table_id)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	enum dr_dump_rec_type rec_type;
 	u64 s_icm_addr;
+	int ret;
 
 	rec_type = is_rx ? DR_DUMP_REC_TYPE_TABLE_RX :
 			   DR_DUMP_REC_TYPE_TABLE_TX;
 
 	s_icm_addr = mlx5dr_icm_pool_get_chunk_icm_addr(table_rx_tx->s_anchor->chunk);
-	seq_printf(file, "%d,0x%llx,0x%llx\n", rec_type, table_id,
-		   dr_dump_icm_to_idx(s_icm_addr));
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx\n", rec_type, table_id,
+		       dr_dump_icm_to_idx(s_icm_addr));
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	return 0;
 }
@@ -503,11 +833,19 @@ static int dr_dump_table(struct seq_file *file, struct mlx5dr_table *table)
 {
 	struct mlx5dr_table_rx_tx *rx = &table->rx;
 	struct mlx5dr_table_rx_tx *tx = &table->tx;
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	int ret;
 
-	seq_printf(file, "%d,0x%llx,0x%llx,%d,%d\n", DR_DUMP_REC_TYPE_TABLE,
-		   DR_DBG_PTR_TO_ID(table), DR_DBG_PTR_TO_ID(table->dmn),
-		   table->table_type, table->level);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx,%d,%d\n", DR_DUMP_REC_TYPE_TABLE,
+		       DR_DBG_PTR_TO_ID(table), DR_DBG_PTR_TO_ID(table->dmn),
+		       table->table_type, table->level);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	if (rx->nic_dmn) {
 		ret = dr_dump_table_rx_tx(file, true, rx,
@@ -546,46 +884,86 @@ static int
 dr_dump_send_ring(struct seq_file *file, struct mlx5dr_send_ring *ring,
 		  const u64 domain_id)
 {
-	seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x\n",
-		   DR_DUMP_REC_TYPE_DOMAIN_SEND_RING, DR_DBG_PTR_TO_ID(ring),
-		   domain_id, ring->cq->mcq.cqn, ring->qp->qpn);
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
+	int ret;
+
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%llx,0x%x,0x%x\n",
+		       DR_DUMP_REC_TYPE_DOMAIN_SEND_RING,
+		       DR_DBG_PTR_TO_ID(ring), domain_id,
+		       ring->cq->mcq.cqn, ring->qp->qpn);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
-static int
+static noinline_for_stack int
 dr_dump_domain_info_flex_parser(struct seq_file *file,
 				const char *flex_parser_name,
 				const u8 flex_parser_value,
 				const u64 domain_id)
 {
-	seq_printf(file, "%d,0x%llx,%s,0x%x\n",
-		   DR_DUMP_REC_TYPE_DOMAIN_INFO_FLEX_PARSER, domain_id,
-		   flex_parser_name, flex_parser_value);
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
+	int ret;
+
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,%s,0x%x\n",
+		       DR_DUMP_REC_TYPE_DOMAIN_INFO_FLEX_PARSER, domain_id,
+		       flex_parser_name, flex_parser_value);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
-static int
+static noinline_for_stack int
 dr_dump_domain_info_caps(struct seq_file *file, struct mlx5dr_cmd_caps *caps,
 			 const u64 domain_id)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	struct mlx5dr_cmd_vport_cap *vport_caps;
 	unsigned long i, vports_num;
+	int ret;
 
 	xa_for_each(&caps->vports.vports_caps_xa, vports_num, vport_caps)
 		; /* count the number of vports in xarray */
 
-	seq_printf(file, "%d,0x%llx,0x%x,0x%llx,0x%llx,0x%x,%lu,%d\n",
-		   DR_DUMP_REC_TYPE_DOMAIN_INFO_CAPS, domain_id, caps->gvmi,
-		   caps->nic_rx_drop_address, caps->nic_tx_drop_address,
-		   caps->flex_protocols, vports_num, caps->eswitch_manager);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,0x%x,0x%llx,0x%llx,0x%x,%lu,%d\n",
+		       DR_DUMP_REC_TYPE_DOMAIN_INFO_CAPS, domain_id, caps->gvmi,
+		       caps->nic_rx_drop_address, caps->nic_tx_drop_address,
+		       caps->flex_protocols, vports_num, caps->eswitch_manager);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	xa_for_each(&caps->vports.vports_caps_xa, i, vport_caps) {
 		vport_caps = xa_load(&caps->vports.vports_caps_xa, i);
 
-		seq_printf(file, "%d,0x%llx,%lu,0x%x,0x%llx,0x%llx\n",
-			   DR_DUMP_REC_TYPE_DOMAIN_INFO_VPORT, domain_id, i,
-			   vport_caps->vport_gvmi, vport_caps->icm_address_rx,
-			   vport_caps->icm_address_tx);
+		ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+			       "%d,0x%llx,%lu,0x%x,0x%llx,0x%llx\n",
+			       DR_DUMP_REC_TYPE_DOMAIN_INFO_VPORT,
+			       domain_id, i, vport_caps->vport_gvmi,
+			       vport_caps->icm_address_rx,
+			       vport_caps->icm_address_tx);
+		if (ret < 0)
+			return ret;
+
+		ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+		if (ret)
+			return ret;
 	}
 	return 0;
 }
@@ -627,24 +1005,32 @@ dr_dump_domain_info(struct seq_file *file, struct mlx5dr_domain_info *info,
 	return 0;
 }
 
-static int
+static noinline_for_stack int
 dr_dump_domain(struct seq_file *file, struct mlx5dr_domain *dmn)
 {
+	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	u64 domain_id = DR_DBG_PTR_TO_ID(dmn);
 	int ret;
 
-	seq_printf(file, "%d,0x%llx,%d,0%x,%d,%u.%u.%u,%s,%d,%u,%u,%u\n",
-		   DR_DUMP_REC_TYPE_DOMAIN,
-		   domain_id, dmn->type, dmn->info.caps.gvmi,
-		   dmn->info.supp_sw_steering,
-		   /* package version */
-		   LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL,
-		   LINUX_VERSION_SUBLEVEL,
-		   pci_name(dmn->mdev->pdev),
-		   0, /* domain flags */
-		   dmn->num_buddies[DR_ICM_TYPE_STE],
-		   dmn->num_buddies[DR_ICM_TYPE_MODIFY_ACTION],
-		   dmn->num_buddies[DR_ICM_TYPE_MODIFY_HDR_PTRN]);
+	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
+		       "%d,0x%llx,%d,0%x,%d,%u.%u.%u,%s,%d,%u,%u,%u\n",
+		       DR_DUMP_REC_TYPE_DOMAIN,
+		       domain_id, dmn->type, dmn->info.caps.gvmi,
+		       dmn->info.supp_sw_steering,
+		       /* package version */
+		       LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL,
+		       LINUX_VERSION_SUBLEVEL,
+		       pci_name(dmn->mdev->pdev),
+		       0, /* domain flags */
+		       dmn->num_buddies[DR_ICM_TYPE_STE],
+		       dmn->num_buddies[DR_ICM_TYPE_MODIFY_ACTION],
+		       dmn->num_buddies[DR_ICM_TYPE_MODIFY_HDR_PTRN]);
+	if (ret < 0)
+		return ret;
+
+	ret = mlx5dr_dbg_dump_data_print(file, buff, ret);
+	if (ret)
+		return ret;
 
 	ret = dr_dump_domain_info(file, &dmn->info, domain_id);
 	if (ret < 0)
@@ -683,11 +1069,91 @@ static int dr_dump_domain_all(struct seq_file *file, struct mlx5dr_domain *dmn)
 	return ret;
 }
 
-static int dr_dump_show(struct seq_file *file, void *priv)
+static void *
+dr_dump_start(struct seq_file *file, loff_t *pos)
 {
-	return dr_dump_domain_all(file, file->private);
+	struct mlx5dr_domain *dmn = file->private;
+	struct mlx5dr_dbg_dump_data *dump_data;
+
+	if (atomic_read(&dmn->dump_info.state) != MLX5DR_DEBUG_DUMP_STATE_FREE) {
+		mlx5_core_warn(dmn->mdev, "Dump already in progress\n");
+		return ERR_PTR(-EBUSY);
+	}
+
+	atomic_set(&dmn->dump_info.state, MLX5DR_DEBUG_DUMP_STATE_IN_PROGRESS);
+	dump_data = dmn->dump_info.dump_data;
+
+	if (dump_data) {
+		return seq_list_start(&dump_data->buff_list, *pos);
+	} else if (*pos == 0) {
+		dump_data = mlx5dr_dbg_create_dump_data();
+		if (!dump_data)
+			goto exit;
+
+		dmn->dump_info.dump_data = dump_data;
+		if (dr_dump_domain_all(file, dmn)) {
+			mlx5dr_dbg_destroy_dump_data(dump_data);
+			dmn->dump_info.dump_data = NULL;
+			goto exit;
+		}
+
+		return seq_list_start(&dump_data->buff_list, *pos);
+	}
+
+exit:
+	atomic_set(&dmn->dump_info.state, MLX5DR_DEBUG_DUMP_STATE_FREE);
+	return NULL;
 }
-DEFINE_SHOW_ATTRIBUTE(dr_dump);
+
+static void *
+dr_dump_next(struct seq_file *file, void *v, loff_t *pos)
+{
+	struct mlx5dr_domain *dmn = file->private;
+	struct mlx5dr_dbg_dump_data *dump_data;
+
+	dump_data = dmn->dump_info.dump_data;
+
+	return seq_list_next(v, &dump_data->buff_list, pos);
+}
+
+static void
+dr_dump_stop(struct seq_file *file, void *v)
+{
+	struct mlx5dr_domain *dmn = file->private;
+	struct mlx5dr_dbg_dump_data *dump_data;
+
+	if (v && IS_ERR(v))
+		return;
+
+	if (!v) {
+		dump_data = dmn->dump_info.dump_data;
+		if (dump_data) {
+			mlx5dr_dbg_destroy_dump_data(dump_data);
+			dmn->dump_info.dump_data = NULL;
+		}
+	}
+
+	atomic_set(&dmn->dump_info.state, MLX5DR_DEBUG_DUMP_STATE_FREE);
+}
+
+static int
+dr_dump_show(struct seq_file *file, void *v)
+{
+	struct mlx5dr_dbg_dump_buff *entry;
+
+	entry = list_entry(v, struct mlx5dr_dbg_dump_buff, node);
+	seq_printf(file, "%s", entry->buff);
+
+	return 0;
+}
+
+static const struct seq_operations dr_dump_sops = {
+	.start	= dr_dump_start,
+	.next	= dr_dump_next,
+	.stop	= dr_dump_stop,
+	.show	= dr_dump_show,
+};
+DEFINE_SEQ_ATTRIBUTE(dr_dump);
 
 void mlx5dr_dbg_init_dump(struct mlx5dr_domain *dmn)
 {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
index def6cf853eea..57c6b363b870 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
@@ -1,10 +1,30 @@
 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
 /* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
 
+#define MLX5DR_DEBUG_DUMP_BUFF_SIZE (64 * 1024 * 1024)
+#define MLX5DR_DEBUG_DUMP_BUFF_LENGTH 512
+
+enum {
+	MLX5DR_DEBUG_DUMP_STATE_FREE,
+	MLX5DR_DEBUG_DUMP_STATE_IN_PROGRESS,
+};
+
+struct mlx5dr_dbg_dump_buff {
+	char *buff;
+	u32 index;
+	struct list_head node;
+};
+
+struct mlx5dr_dbg_dump_data {
+	struct list_head buff_list;
+};
+
 struct mlx5dr_dbg_dump_info {
 	struct mutex dbg_mutex; /* protect dbg lists */
 	struct dentry *steering_debugfs;
 	struct dentry *fdb_debugfs;
+	struct mlx5dr_dbg_dump_data *dump_data;
+	atomic_t state;
 };
 
 void mlx5dr_dbg_init_dump(struct mlx5dr_domain *dmn);
-- 
2.43.0

[net-next V4 14/15] net/mlx5e: XSK, Exclude tailroom from non-linear SKBs memory calculations

[Saeed Mahameed]

From: Carolina Jubran <cjubran@nvidia.com>

Packet data buffers lack reserved headroom or tailroom,
and SKBs are allocated on a side memory when needed.

Exclude the tailroom from the SKB size calculations.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/params.c   | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
index 5d213a9886f1..b9d39ef8053c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
@@ -240,11 +240,14 @@ static u32 mlx5e_rx_get_linear_sz_xsk(struct mlx5e_params *params,
 	return xsk->headroom + hw_mtu;
 }
 
-static u32 mlx5e_rx_get_linear_sz_skb(struct mlx5e_params *params, bool xsk)
+static u32 mlx5e_rx_get_linear_sz_skb(struct mlx5e_params *params, bool no_head_tail_room)
 {
-	/* SKBs built on XDP_PASS on XSK RQs don't have headroom. */
-	u16 headroom = xsk ? 0 : mlx5e_get_linear_rq_headroom(params, NULL);
 	u32 hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu);
+	u16 headroom;
+
+	if (no_head_tail_room)
+		return SKB_DATA_ALIGN(hw_mtu);
+	headroom = mlx5e_get_linear_rq_headroom(params, NULL);
 
 	return MLX5_SKB_FRAG_SZ(headroom + hw_mtu);
 }
@@ -289,7 +292,11 @@ bool mlx5e_rx_is_linear_skb(struct mlx5_core_dev *mdev,
 	if (params->packet_merge.type != MLX5E_PACKET_MERGE_NONE)
 		return false;
 
-	/* Both XSK and non-XSK cases allocate an SKB on XDP_PASS. Packet data
+	/* Call mlx5e_rx_get_linear_sz_skb with the no_head_tail_room parameter set
+	 * to exclude headroom and tailroom from calculations.
+	 * no_head_tail_room is true when SKB is built on XDP_PASS on XSK RQs
+	 * since packet data buffers don't have headroom and tailroom resreved for the SKB.
+	 * Both XSK and non-XSK cases allocate an SKB on XDP_PASS. Packet data
 	 * must fit into a CPU page.
 	 */
 	if (mlx5e_rx_get_linear_sz_skb(params, xsk) > PAGE_SIZE)
-- 
2.43.0

[net-next V4 15/15] net/mlx5e: XDP, Exclude headroom and tailroom from memory calculations

[Saeed Mahameed]

From: Carolina Jubran <cjubran@nvidia.com>

In the case of XDP Multi-Buffer with Striding RQ, an extra
page is allocated for the linear part of non-linear SKBs.

Including headroom and tailroom in the calculation may
result in an unnecessary increase in the amount of memory
allocated. This could be critical, particularly for large
MTUs (e.g. 7975B) and large RQ sizes (e.g. 8192).

In this case, the requested page pool size is 64K, but
32K would be sufficient. This causes a failure due to
exceeding the page pool size limit of 32K.

Exclude headroom and tailroom from SKB size calculations
to reduce page pool size.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/params.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
index b9d39ef8053c..5757f4f10c12 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
@@ -257,6 +257,7 @@ static u32 mlx5e_rx_get_linear_stride_sz(struct mlx5_core_dev *mdev,
 					 struct mlx5e_xsk_param *xsk,
 					 bool mpwqe)
 {
+	bool no_head_tail_room;
 	u32 sz;
 
 	/* XSK frames are mapped as individual pages, because frames may come in
@@ -265,7 +266,13 @@ static u32 mlx5e_rx_get_linear_stride_sz(struct mlx5_core_dev *mdev,
 	if (xsk)
 		return mpwqe ? 1 << mlx5e_mpwrq_page_shift(mdev, xsk) : PAGE_SIZE;
 
-	sz = roundup_pow_of_two(mlx5e_rx_get_linear_sz_skb(params, false));
+	no_head_tail_room = params->xdp_prog && mpwqe && !mlx5e_rx_is_linear_skb(mdev, params, xsk);
+
+	/* When no_head_tail_room is set, headroom and tailroom are excluded from skb calculations.
+	 * no_head_tail_room should be set in the case of XDP with Striding RQ
+	 * when SKB is not linear. This is because another page is allocated for the linear part.
+	 */
+	sz = roundup_pow_of_two(mlx5e_rx_get_linear_sz_skb(params, no_head_tail_room));
 
 	/* XDP in mlx5e doesn't support multiple packets per page.
 	 * Do not assume sz <= PAGE_SIZE if params->xdp_prog is set.
-- 
2.43.0

Re: [pull request][net-next V4 00/15] mlx5 updates 2024-01-26

[Simon Horman]

On Mon, Feb 05, 2024 at 04:55:12PM -0800, Saeed Mahameed wrote:
> From: Saeed Mahameed <saeedm@nvidia.com>
> 
> v3->v4:
>  - Prevent a use after free in case of error flow inside
>    mlx5dr_dbg_create_dump_data() patch #13
> 
> v2->v3:
>  - Add noinline_for_stack to address large frame size issue patch #13
> 
> v1->v2:
>  - Fix large stack buffer usage in patch #13

Hi Saeed,

Thanks for the updates.
I have nothing to flag in v4 :)

Re: [net-next V4 01/15] xfrm: generalize xdo_dev_state_update_curlft to allow statistics update

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (main)
by Saeed Mahameed <saeedm@nvidia.com>:

On Mon,  5 Feb 2024 16:55:13 -0800 you wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
> 
> In order to allow drivers to fill all statistics, change the name
> of xdo_dev_state_update_curlft to be xdo_dev_state_update_stats.
> 
> Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
> 
> [...]

Here is the summary with links:
  - [net-next,V4,01/15] xfrm: generalize xdo_dev_state_update_curlft to allow statistics update
    https://git.kernel.org/netdev/net-next/c/fd2bc4195d51
  - [net-next,V4,02/15] xfrm: get global statistics from the offloaded device
    https://git.kernel.org/netdev/net-next/c/f9f221c98fd8
  - [net-next,V4,03/15] net/mlx5e: Connect mlx5 IPsec statistics with XFRM core
    https://git.kernel.org/netdev/net-next/c/6fb7f9408779
  - [net-next,V4,04/15] net/mlx5e: Delete obsolete IPsec code
    https://git.kernel.org/netdev/net-next/c/77bed87f7620
  - [net-next,V4,05/15] Documentation: Fix counter name of mlx5 vnic reporter
    https://git.kernel.org/netdev/net-next/c/21e16fa5dc6c
  - [net-next,V4,06/15] net/mlx5: Rename mlx5_sf_dev_remove
    https://git.kernel.org/netdev/net-next/c/8d7db0abafb8
  - [net-next,V4,07/15] net/mlx5: remove fw_fatal reporter dump option for non PF
    https://git.kernel.org/netdev/net-next/c/daa6a6eb8f88
  - [net-next,V4,08/15] net/mlx5: remove fw reporter dump option for non PF
    https://git.kernel.org/netdev/net-next/c/17aa2d79b7e5
  - [net-next,V4,09/15] net/mlx5: SF, Stop waiting for FW as teardown was called
    https://git.kernel.org/netdev/net-next/c/137cef6d5556
  - [net-next,V4,10/15] net/mlx5: Return specific error code for timeout on wait_fw_init
    https://git.kernel.org/netdev/net-next/c/bcad0e531231
  - [net-next,V4,11/15] net/mlx5: Remove initial segmentation duplicate definitions
    https://git.kernel.org/netdev/net-next/c/91a72ada6605
  - [net-next,V4,12/15] net/mlx5: Change missing SyncE capability print to debug
    https://git.kernel.org/netdev/net-next/c/507472ed0e37
  - [net-next,V4,13/15] net/mlx5: DR, Change SWS usage to debug fs seq_file interface
    https://git.kernel.org/netdev/net-next/c/917d1e799ddf
  - [net-next,V4,14/15] net/mlx5e: XSK, Exclude tailroom from non-linear SKBs memory calculations
    https://git.kernel.org/netdev/net-next/c/fb3bfdfcd106
  - [net-next,V4,15/15] net/mlx5e: XDP, Exclude headroom and tailroom from memory calculations
    https://git.kernel.org/netdev/net-next/c/a90f55916f15

You are awesome, thank you!
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