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octeontx2-pf: mcs: Do not reset PN while updating secy 

[ Upstream commit 3c99bace4a ]

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: c54ffc7360 ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Subbaraya Sundeep 2023-04-26 11:55:28 +05:30 committed by Greg Kroah-Hartman
parent bafbedacc5
commit 0d3ba843cb
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
View File

@ -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;
}