netdev - [PATCH xfrm-next 5/9] xfrm: copy_to_user_state fetch offloaded SA packets/bytes statistics

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Date:   Tue, 14 Mar 2023 10:58:40 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Steffen Klassert <steffen.klassert@...unet.com>
Cc:     Raed Salem <raeds@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        Paolo Abeni <pabeni@...hat.com>,
        Paul Blakey <paulb@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH xfrm-next 5/9] xfrm: copy_to_user_state fetch offloaded SA packets/bytes statistics

From: Raed Salem <raeds@...dia.com>

Both in RX and TX, the traffic that performs IPsec packet offload
transformation is accounted by HW only. Consequently, the HW should
be queried for packets/bytes statistics when user asks for such
transformation data.

Signed-off-by: Raed Salem <raeds@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 net/xfrm/xfrm_user.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index cf5172d4ce68..5eee905b2450 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -901,6 +901,8 @@ static void copy_to_user_state(struct xfrm_state *x, struct xfrm_usersa_info *p)
 	memcpy(&p->id, &x->id, sizeof(p->id));
 	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);
 	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);
-- 
2.39.2