diff options
| author |   Igor Russkikh <irusskikh@marvell.com> | 2020-10-05 18:39:39 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-10-06 06:16:01 -0700 |
| commit | 60db5e408e432d57f93e1eaec8fc9d7a05caa1f9 (patch) | |
| tree | 6464701adb7436481e0df986de6f52897d31e352 /drivers/net/ethernet/aquantia/atlantic/hw_atl | |
| parent | net: atlantic: implement phy downshift feature (diff) | |
| download | linux-dev-60db5e408e432d57f93e1eaec8fc9d7a05caa1f9.tar.xz linux-dev-60db5e408e432d57f93e1eaec8fc9d7a05caa1f9.zip | |
net: atlantic: implement media detect feature via phy tunables
Mediadetect is another name for the EDPD (energy detect power down).
This feature allows device to save extra power when no link is available.
PHY goes into the extreme power saving mode and only periodically wakes up
and checks for the link.
AQC devices has fixed check period of 6 seconds
The feature may increase linkup time.
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/hw_atl')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c index 09500a95380b..ee0c22d04935 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c @@ -633,6 +633,20 @@ static int aq_fw2x_set_downshift(struct aq_hw_s *self, u32 counter) return err; } +static int aq_fw2x_set_media_detect(struct aq_hw_s *self, bool on) +{ + u32 enable; + u32 offset; + + if (self->fw_ver_actual < HW_ATL_FW_VER_MEDIA_CONTROL) + return -EOPNOTSUPP; + + offset = offsetof(struct hw_atl_utils_settings, media_detect); + enable = on; + + return hw_atl_write_fwsettings_dwords(self, offset, &enable, 1); +} + static u32 aq_fw2x_get_link_capabilities(struct aq_hw_s *self) { int err = 0; @@ -714,6 +728,7 @@ const struct aq_fw_ops aq_fw_2x_ops = { .led_control = aq_fw2x_led_control, .set_phyloopback = aq_fw2x_set_phyloopback, .set_downshift = aq_fw2x_set_downshift, + .set_media_detect = aq_fw2x_set_media_detect, .adjust_ptp = aq_fw3x_adjust_ptp, .get_link_capabilities = aq_fw2x_get_link_capabilities, .send_macsec_req = aq_fw2x_send_macsec_req, |