linux-kernel - [PATCH net-next v6 05/10] octeontx2-pf: mcs: update PN only when update

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Message-Id: <20230928084430.1882670-6-radu-nicolae.pirea@oss.nxp.com>
Date:   Thu, 28 Sep 2023 11:44:25 +0300
From:   "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
To:     sgoutham@...vell.com, gakula@...vell.com, sbhatta@...vell.com,
        hkelam@...vell.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, borisp@...dia.com,
        saeedm@...dia.com, leon@...nel.org, sd@...asysnail.net,
        andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk,
        richardcochran@...il.com, sebastian.tobuschat@....nxp.com
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org,
        "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
Subject: [PATCH net-next v6 05/10] octeontx2-pf: mcs: update PN only when update_pn is true

When updating SA, update the PN only when the update_pn flag is true.
Otherwise, the PN will be reset to its previous value.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@....nxp.com>
---
Changes in v6:
- patch added in v6

 drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
index 59b138214af2..4c59850dfddf 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
@@ -1362,6 +1362,9 @@ static int cn10k_mdo_upd_txsa(struct macsec_context *ctx)
 		if (err)
 			return err;
 
+		if (!ctx->sa.update_pn)
+			return 0;
+
 		err = cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc,
 					      sa_num, sw_tx_sa->active);
 		if (err)
@@ -1529,6 +1532,9 @@ static int cn10k_mdo_upd_rxsa(struct macsec_context *ctx)
 		if (err)
 			return err;
 
+		if (!ctx->sa.update_pn)
+			return 0;
+
 		err = cn10k_mcs_write_rx_sa_pn(pfvf, rxsc, sa_num,
 					       rx_sa->next_pn);
 		if (err)
-- 
2.34.1