diff options
| author | Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com> | 2026-06-04 11:30:37 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-06 05:17:05 +0300 |
| commit | 903db046d5579bef0ea699eae4b279dd6455fc9f (patch) | |
| tree | 74d79b0977b7998bb0a6b04ec0b6d347d38f9bda | |
| parent | 46e50367338702abe3df661df7795bdada40fef7 (diff) | |
| download | linux-903db046d5579bef0ea699eae4b279dd6455fc9f.tar.xz | |
net: stmmac: xgmac: report L3/L4 filter match count in ethtool stats
Read the L3FM and L4FM bits from the RX descriptor status word (RDES2)
and increment the corresponding ethtool statistics counters. This allows
users to observe L3/L4 filter hit rates via ethtool -S.
Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20260604083037.24407-1-muhammad.nazim.amirul.nazle.asmade@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h index 51943705a2b0..95fdf3133208 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h @@ -429,6 +429,8 @@ #define XGMAC_TDES3_VLTV BIT(16) #define XGMAC_TDES3_VT GENMASK(15, 0) #define XGMAC_TDES3_FL GENMASK(14, 0) +#define XGMAC_RDES2_L4FM BIT(28) +#define XGMAC_RDES2_L3FM BIT(27) #define XGMAC_RDES2_HL GENMASK(9, 0) #define XGMAC_RDES3_OWN BIT(31) #define XGMAC_RDES3_CTXT BIT(30) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c index b5f200a87484..6719ac6e395b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c @@ -27,6 +27,7 @@ static int dwxgmac2_get_rx_status(struct stmmac_extra_stats *x, struct dma_desc *p) { u32 rdes3 = le32_to_cpu(p->des3); + u32 rdes2 = le32_to_cpu(p->des2); if (unlikely(rdes3 & XGMAC_RDES3_OWN)) return dma_own; @@ -37,6 +38,11 @@ static int dwxgmac2_get_rx_status(struct stmmac_extra_stats *x, if (unlikely((rdes3 & XGMAC_RDES3_ES) && (rdes3 & XGMAC_RDES3_LD))) return discard_frame; + if (rdes2 & XGMAC_RDES2_L3FM) + x->l3_filter_match++; + if (rdes2 & XGMAC_RDES2_L4FM) + x->l4_filter_match++; + return good_frame; } |