diff options
| author | Nikita Danilov <ndanilov@marvell.com> | 2020-07-17 23:39:49 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-18 04:24:32 +0300 |
| commit | 23e500e88723f243c27e1b26c9d035d4cdd1b24a (patch) | |
| tree | 034345a9d180a7ea32c268f72e16b04e65dbcb03 /drivers/net/ethernet/aquantia/atlantic/aq_nic.c | |
| parent | 0b4a66a389d1ff5dab29f688fcfe36482bc889a2 (diff) | |
| download | linux-23e500e88723f243c27e1b26c9d035d4cdd1b24a.tar.xz | |
net: atlantic: disable PTP on AQC111, AQC112
This patch disables PTP on AQC111 and AQC112 due to a known HW issue,
which can cause datapath issues.
Ideally PTP block should have been disabled via PHY provisioning, but
unfortunately many units have been shipped with enabled PTP block.
Thus, we have to work around this in the driver.
Fixes: dbcd6806af420 ("net: aquantia: add support for Phy access")
Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/aq_nic.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c index 4435c6374f7e..7c7bf6bf163f 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c @@ -415,6 +415,15 @@ int aq_nic_init(struct aq_nic_s *self) self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_TP) { self->aq_hw->phy_id = HW_ATL_PHY_ID_MAX; err = aq_phy_init(self->aq_hw); + + /* Disable the PTP on NICs where it's known to cause datapath + * problems. + * Ideally this should have been done by PHY provisioning, but + * many units have been shipped with enabled PTP block already. + */ + if (self->aq_nic_cfg.aq_hw_caps->quirks & AQ_NIC_QUIRK_BAD_PTP) + if (self->aq_hw->phy_id != HW_ATL_PHY_ID_MAX) + aq_phy_disable_ptp(self->aq_hw); } for (i = 0U; i < self->aq_vecs; i++) { |