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net: aquantia: Add renegotiate ethtool operation support

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Adds ethtool -r|--negotiate operation support. It triggers special
control bit on FW interface causing FW to restart link negotiation.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Anton Mikaev <amikaev@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anton Mikaev 2018-07-02 17:03:38 +03:00 committed by David S. Miller
parent 288551de45
commit b8d68b62d9
4 changed files with 63 additions and 0 deletions
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14
drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
View File

@ -285,6 +285,19 @@ static int aq_ethtool_set_coalesce(struct net_device *ndev,
return aq_nic_update_interrupt_moderation_settings(aq_nic);
}
static int aq_ethtool_nway_reset(struct net_device *ndev)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
if (unlikely(!aq_nic->aq_fw_ops->renegotiate))
return -EOPNOTSUPP;
if (netif_running(ndev))
return aq_nic->aq_fw_ops->renegotiate(aq_nic->aq_hw);
return 0;
}
static void aq_ethtool_get_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pause)
{
@ -390,6 +403,7 @@ const struct ethtool_ops aq_ethtool_ops = {
.get_drvinfo = aq_ethtool_get_drvinfo,
.get_strings = aq_ethtool_get_strings,
.get_rxfh_indir_size = aq_ethtool_get_rss_indir_size,
.nway_reset = aq_ethtool_nway_reset,
.get_ringparam = aq_get_ringparam,
.set_ringparam = aq_set_ringparam,
.get_pauseparam = aq_ethtool_get_pauseparam,

2
drivers/net/ethernet/aquantia/atlantic/aq_hw.h
View File

@ -212,6 +212,8 @@ struct aq_fw_ops {
int (*reset)(struct aq_hw_s *self);
int (*renegotiate)(struct aq_hw_s *self);
int (*get_mac_permanent)(struct aq_hw_s *self, u8 *mac);
int (*set_link_speed)(struct aq_hw_s *self, u32 speed);

35
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
View File

@ -239,6 +239,41 @@ enum hw_atl_fw2x_caps_hi {
CAPS_HI_TRANSACTION_ID,
};
enum hw_atl_fw2x_ctrl {
CTRL_RESERVED1 = 0x00,
CTRL_RESERVED2,
CTRL_RESERVED3,
CTRL_PAUSE,
CTRL_ASYMMETRIC_PAUSE,
CTRL_RESERVED4,
CTRL_RESERVED5,
CTRL_RESERVED6,
CTRL_1GBASET_FD_EEE,
CTRL_2P5GBASET_FD_EEE,
CTRL_5GBASET_FD_EEE,
CTRL_10GBASET_FD_EEE,
CTRL_THERMAL_SHUTDOWN,
CTRL_PHY_LOGS,
CTRL_EEE_AUTO_DISABLE,
CTRL_PFC,
CTRL_WAKE_ON_LINK,
CTRL_CABLE_DIAG,
CTRL_TEMPERATURE,
CTRL_DOWNSHIFT,
CTRL_PTP_AVB,
CTRL_RESERVED7,
CTRL_LINK_DROP,
CTRL_SLEEP_PROXY,
CTRL_WOL,
CTRL_MAC_STOP,
CTRL_EXT_LOOPBACK,
CTRL_INT_LOOPBACK,
CTRL_RESERVED8,
CTRL_WOL_TIMER,
CTRL_STATISTICS,
CTRL_FORCE_RECONNECT,
};
struct aq_hw_s;
struct aq_fw_ops;
struct aq_hw_caps_s;

12
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
View File

@ -215,6 +215,17 @@ static int aq_fw2x_update_stats(struct aq_hw_s *self)
return hw_atl_utils_update_stats(self);
}
static int aq_fw2x_renegotiate(struct aq_hw_s *self)
{
u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
mpi_opts |= BIT(CTRL_FORCE_RECONNECT);
aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
return 0;
}
static int aq_fw2x_set_flow_control(struct aq_hw_s *self)
{
u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
@ -230,6 +241,7 @@ const struct aq_fw_ops aq_fw_2x_ops = {
.init = aq_fw2x_init,
.deinit = aq_fw2x_deinit,
.reset = NULL,
.renegotiate = aq_fw2x_renegotiate,
.get_mac_permanent = aq_fw2x_get_mac_permanent,
.set_link_speed = aq_fw2x_set_link_speed,
.set_state = aq_fw2x_set_state,