[net PATCH 8/9] octeontx2-pf: mcs: Fix shared counters logic

From: Geetha sowjanya
Date: Sun Apr 23 2023 - 05:56:40 EST


From: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>

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: c54ffc73601c ("octeontx2-pf: mcs: Introduce MACSEC hardware offloading")
Signed-off-by: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
Signed-off-by: Sunil Goutham <sgoutham@xxxxxxxxxxx>
Signed-off-by: Geetha sowjanya <gakula@xxxxxxxxxxx>
---
.../ethernet/marvell/octeontx2/nic/cn10k_macsec.c | 14 +++++++-------
.../ethernet/marvell/octeontx2/nic/otx2_common.h | 2 +-
2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
index a108f986be50..0ef44faa1ee8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c
+++ b/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)
@@ -1120,7 +1120,7 @@ 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);

@@ -1544,12 +1544,12 @@ 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;
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index 3d22cc6a2804..f42b2b65bfd7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/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;
--
2.25.1