@@ -242,6 +242,9 @@ void hbg_hw_set_pause_enable(struct hbg_priv *priv, u32 tx_en, u32 rx_en)
HBG_REG_PAUSE_ENABLE_TX_B, tx_en);
hbg_reg_write_field(priv, HBG_REG_PAUSE_ENABLE_ADDR,
HBG_REG_PAUSE_ENABLE_RX_B, rx_en);
+
+ hbg_reg_write_field(priv, HBG_REG_REC_FILT_CTRL_ADDR,
+ HBG_REG_REC_FILT_CTRL_PAUSE_FRM_PASS_B, rx_en);
}
void hbg_hw_get_pause_enable(struct hbg_priv *priv, u32 *tx_en, u32 *rx_en)
@@ -68,6 +68,7 @@
#define HBG_REG_TRANSMIT_CTRL_AN_EN_B BIT(5)
#define HBG_REG_REC_FILT_CTRL_ADDR (HBG_REG_SGMII_BASE + 0x0064)
#define HBG_REG_REC_FILT_CTRL_UC_MATCH_EN_B BIT(0)
+#define HBG_REG_REC_FILT_CTRL_PAUSE_FRM_PASS_B BIT(4)
#define HBG_REG_RX_OCTETS_TOTAL_OK_ADDR (HBG_REG_SGMII_BASE + 0x0080)
#define HBG_REG_RX_OCTETS_BAD_ADDR (HBG_REG_SGMII_BASE + 0x0084)
#define HBG_REG_RX_UC_PKTS_ADDR (HBG_REG_SGMII_BASE + 0x0088)
The driver supports pause frames, but does not pass pause frames based on rx pause enable configuration, resulting in incorrect pause frame statistics. like this: mz eno3 '01 80 c2 00 00 01 00 18 2d 04 00 9c 88 08 00 01 ff ff' \ -p 64 -c 100 ethtool -S enp132s0f2 | grep -v ": 0" NIC statistics: rx_octets_total_filt_cnt: 6800 rx_filt_pkt_cnt: 100 The rx pause frames are filtered by the MAC hardware. This patch configures pass pause frames based on the rx puase enable status to ensure that rx pause frames are not filtered. mz eno3 '01 80 c2 00 00 01 00 18 2d 04 00 9c 88 08 00 01 ff ff' \ -p 64 -c 100 ethtool --include-statistics -a enp132s0f2 Pause parameters for enp132s0f2: Autonegotiate: on RX: on TX: on RX negotiated: on TX negotiated: on Statistics: tx_pause_frames: 0 rx_pause_frames: 100 Fixes: 3a03763f3876 ("net: hibmcge: Add pauseparam supported in this module") Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> --- ChangeLog: v1 -> v2: - Add more details in commit log, suggested by Simon Horman. v1: https://lore.kernel.org/all/20250402133905.895421-1-shaojijie@huawei.com/ --- drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c | 3 +++ drivers/net/ethernet/hisilicon/hibmcge/hbg_reg.h | 1 + 2 files changed, 4 insertions(+)