[SRU][J:linux-bluefield][PATCH v1 1/9] xfrm: generalize xdo_dev_state_update_curlft to allow statistics update

[Tony Duan]

From: Leon Romanovsky <leonro at nvidia.com>

BugLink: https://bugs.launchpad.net/bugs/2044427

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.

Signed-off-by: Leon Romanovsky <leonro at nvidia.com>
(backported from commit 4eb1ca1bad56346d8ae865926aa4a4b896512c54)
[Tony: Do not port ipsec.c since BF does not use this driver]
Signed-off-by: Tony Duan <yifeid at nvidia.com>

Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
---
 Documentation/networking/xfrm_device.rst |  4 ++--
 include/linux/netdevice.h                |  2 +-
 include/net/xfrm.h                       | 11 ++++-------
 net/xfrm/xfrm_state.c                    |  4 ++--
 net/xfrm/xfrm_user.c                     |  2 +-
 5 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/Documentation/networking/xfrm_device.rst b/Documentation/networking/xfrm_device.rst
index 83abdfe..af70192 100644
--- a/Documentation/networking/xfrm_device.rst
+++ b/Documentation/networking/xfrm_device.rst
@@ -70,9 +70,9 @@ 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);
@@ -190,6 +190,6 @@ 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/include/linux/netdevice.h b/include/linux/netdevice.h
index c5a86cf..52e7779 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1014,7 +1014,7 @@ 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 e8d58c6..d3ff1cd 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1543,21 +1543,18 @@ 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 2c68cf36..07e4f89 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;
@@ -1933,7 +1933,7 @@ int xfrm_state_update(struct xfrm_state *x)
 
 int xfrm_state_check_expire(struct xfrm_state *x)
 {
-	xfrm_dev_state_update_curlft(x);
+	xfrm_dev_state_update_stats(x);
 
 	if (!x->curlft.use_time)
 		x->curlft.use_time = ktime_get_real_seconds();
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 58abcdd..a591283 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -802,7 +802,7 @@ 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);
-- 
1.8.3.1