octeontx2-pf: mcs: Fix shared counters logic

BugLink: https://bugs.launchpad.net/bugs/2028580

[ Upstream commit 9bdfe61 ]

Macsec stats like InPktsLate and InPktsDelayed share
same counter in hardware. If SecY replay_protect is true
then counter represents InPktsLate otherwise InPktsDelayed.
This mode change was tracked based on protect_frames
instead of replay_protect mistakenly. Similarly InPktsUnchecked
and InPktsOk share same counter and mode change was tracked
based on validate_check instead of validate_disabled.
This patch fixes those problems.

Fixes: c54ffc7 ("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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

Author: Subbaraya Sundeep

drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c

@@ -1014,7 +1014,7 @@ static void cn10k_mcs_sync_stats(struct otx2_nic *pfvf, struct macsec_secy *secy
 
 	/* Check if sync is really needed */
 	if (secy->validate_frames == txsc->last_validate_frames &&
-	    secy->protect_frames == txsc->last_protect_frames)
+	    secy->replay_protect == txsc->last_replay_protect)
 		return;
 
 	cn10k_mcs_secy_stats(pfvf, txsc->hw_secy_id_rx, &rx_rsp, MCS_RX, true);
@@ -1036,19 +1036,19 @@ static void cn10k_mcs_sync_stats(struct otx2_nic *pfvf, struct macsec_secy *secy
 		rxsc->stats.InPktsInvalid += sc_rsp.pkt_invalid_cnt;
 		rxsc->stats.InPktsNotValid += sc_rsp.pkt_notvalid_cnt;
 
-		if (txsc->last_protect_frames)
+		if (txsc->last_replay_protect)
 			rxsc->stats.InPktsLate += sc_rsp.pkt_late_cnt;
 		else
 			rxsc->stats.InPktsDelayed += sc_rsp.pkt_late_cnt;
 
-		if (txsc->last_validate_frames == MACSEC_VALIDATE_CHECK)
+		if (txsc->last_validate_frames == MACSEC_VALIDATE_DISABLED)
 			rxsc->stats.InPktsUnchecked += sc_rsp.pkt_unchecked_cnt;
 		else
 			rxsc->stats.InPktsOK += sc_rsp.pkt_unchecked_cnt;
 	}
 
 	txsc->last_validate_frames = secy->validate_frames;
-	txsc->last_protect_frames = secy->protect_frames;
+	txsc->last_replay_protect = secy->replay_protect;
 }
 
 static int cn10k_mdo_open(struct macsec_context *ctx)
@@ -1117,7 +1117,7 @@ static int cn10k_mdo_add_secy(struct macsec_context *ctx)
 	txsc->sw_secy = secy;
 	txsc->encoding_sa = secy->tx_sc.encoding_sa;
 	txsc->last_validate_frames = secy->validate_frames;
-	txsc->last_protect_frames = secy->protect_frames;
+	txsc->last_replay_protect = secy->replay_protect;
 
 	list_add(&txsc->entry, &cfg->txsc_list);
 
@@ -1538,12 +1538,12 @@ static int cn10k_mdo_get_rx_sc_stats(struct macsec_context *ctx)
 	rxsc->stats.InPktsInvalid += rsp.pkt_invalid_cnt;
 	rxsc->stats.InPktsNotValid += rsp.pkt_notvalid_cnt;
 
-	if (secy->protect_frames)
+	if (secy->replay_protect)
 		rxsc->stats.InPktsLate += rsp.pkt_late_cnt;
 	else
 		rxsc->stats.InPktsDelayed += rsp.pkt_late_cnt;
 
-	if (secy->validate_frames == MACSEC_VALIDATE_CHECK)
+	if (secy->validate_frames == MACSEC_VALIDATE_DISABLED)
 		rxsc->stats.InPktsUnchecked += rsp.pkt_unchecked_cnt;
 	else
 		rxsc->stats.InPktsOK += rsp.pkt_unchecked_cnt;

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

@@ -389,7 +389,7 @@ struct cn10k_mcs_txsc {
 	struct cn10k_txsc_stats stats;
 	struct list_head entry;
 	enum macsec_validation_type last_validate_frames;
-	bool last_protect_frames;
+	bool last_replay_protect;
 	u16 hw_secy_id_tx;
 	u16 hw_secy_id_rx;
 	u16 hw_flow_id;