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octeontx2-af: Fix pause frame configuration

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[ Upstream commit e307b5a845c5951dabafc48d00b6424ee64716c4 ]

The current implementation's default Pause Forward setting is causing
unnecessary network traffic. This patch disables Pause Forward to
address this issue.

Fixes: 1121f6b02e ("octeontx2-af: Priority flow control configuration support")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hariprasad Kelam 2023-12-08 14:57:54 +05:30 committed by Greg Kroah-Hartman
parent a29b15cc68
commit 7d3912613d
1 changed files with 7 additions and 4 deletions
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11
drivers/net/ethernet/marvell/octeontx2/af/rpm.c
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@ -283,6 +283,11 @@ void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable)
cfg = FIELD_SET(RPM_PFC_CLASS_MASK, 0, cfg);
rpm_write(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL, cfg);
/* Disable forward pause to driver */
cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG);
cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD;
rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg);
/* Enable channel mask for all LMACS */
rpm_write(rpm, 0, RPMX_CMR_CHAN_MSK_OR, ~0ULL);
}
@ -451,12 +456,10 @@ int rpm_lmac_pfc_config(void *rpmd, int lmac_id, u8 tx_pause, u8 rx_pause, u16 p
if (rx_pause) {
cfg &= ~(RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE |
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE |
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD);
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE);
} else {
cfg |= (RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE |
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE |
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD);
RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE);
}
if (tx_pause) {