From 3c99bace4ad08ad0264285ba8ad73117560992c2 Mon Sep 17 00:00:00 2001 From: Subbaraya Sundeep Date: Wed, 26 Apr 2023 11:55:28 +0530 Subject: [PATCH] octeontx2-pf: mcs: Do not reset PN while updating secy After creating SecYs, SCs and SAs a SecY can be modified to change attributes like validation mode, protect frames mode etc. During this SecY update, packet number is reset to initial user given value by mistake. Hence do not reset PN when updating SecY parameters. Fixes: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading") Signed-off-by: Subbaraya Sundeep Signed-off-by: Sunil Goutham Signed-off-by: Geetha sowjanya Reviewed-by: Leon Romanovsky Signed-off-by: Paolo Abeni --- drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c index 3ad8d7e..a487a98 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c @@ -1134,6 +1134,7 @@ static int cn10k_mdo_upd_secy(struct macsec_context *ctx) struct macsec_secy *secy = ctx->secy; struct macsec_tx_sa *sw_tx_sa; struct cn10k_mcs_txsc *txsc; + bool active; u8 sa_num; int err; @@ -1141,15 +1142,19 @@ static int cn10k_mdo_upd_secy(struct macsec_context *ctx) if (!txsc) return -ENOENT; - txsc->encoding_sa = secy->tx_sc.encoding_sa; - - sa_num = txsc->encoding_sa; - sw_tx_sa = rcu_dereference_bh(secy->tx_sc.sa[sa_num]); + /* Encoding SA got changed */ + if (txsc->encoding_sa != secy->tx_sc.encoding_sa) { + txsc->encoding_sa = secy->tx_sc.encoding_sa; + sa_num = txsc->encoding_sa; + sw_tx_sa = rcu_dereference_bh(secy->tx_sc.sa[sa_num]); + active = sw_tx_sa ? sw_tx_sa->active : false; + cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc, sa_num, active); + } if (netif_running(secy->netdev)) { cn10k_mcs_sync_stats(pfvf, secy, txsc); - err = cn10k_mcs_secy_tx_cfg(pfvf, secy, txsc, sw_tx_sa, sa_num); + err = cn10k_mcs_secy_tx_cfg(pfvf, secy, txsc, NULL, 0); if (err) return err; } -- 2.7.4