Commit 901f3cc1 authored by Egor Pomozov's avatar Egor Pomozov Committed by David S. Miller
Browse files

net: atlantic: fix PTP on AQC10X 



This patch fixes PTP on AQC10X.
PTP support on AQC10X requires FW involvement and FW configures the
TPS data arb mode itself.
So we must make sure driver doesn't touch TPS data arb mode on AQC10x
if PTP is enabled. Otherwise, there are no timestamps even though
packets are flowing.

Fixes: 2deac71a ("net: atlantic: QoS implementation: min_rate")
Signed-off-by: default avatarEgor Pomozov <epomozov@marvell.com>
Signed-off-by: default avatarMark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: default avatarIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8885bb06

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c

+6 −1
Original line number Diff line number Diff line
@@ -373,8 +373,13 @@ static int hw_atl_b0_hw_init_tx_tc_rate_limit(struct aq_hw_s *self) 


	/* WSP, if min_rate is set for at least one TC.

	 * RR otherwise.

	 *

	 * NB! MAC FW sets arb mode itself if PTP is enabled. We shouldn't

	 * overwrite it here in that case.

	 */

	if (!nic_cfg->is_ptp)

		hw_atl_tps_tx_pkt_shed_data_arb_mode_set(self, min_rate_msk ? 1U : 0U);



	/* Data TC Arbiter takes precedence over Descriptor TC Arbiter,

	 * leave Descriptor TC Arbiter as RR.

	 */