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Message-ID: <a8b267e3-5131-4725-914d-1053d2bba67b@solarflare.com>
Date: Mon, 29 Jun 2020 14:34:50 +0100
From: Edward Cree <ecree@...arflare.com>
To: <linux-net-drivers@...arflare.com>, <davem@...emloft.net>
CC: <netdev@...r.kernel.org>
Subject: [PATCH v2 net-next 07/15] sfc: commonise ethtool link handling
functions
Link speeds, FEC, and autonegotiation are all things EF100 will share.
Signed-off-by: Edward Cree <ecree@...arflare.com>
---
drivers/net/ethernet/sfc/ethtool.c | 148 ----------------------
drivers/net/ethernet/sfc/ethtool_common.c | 146 +++++++++++++++++++++
drivers/net/ethernet/sfc/ethtool_common.h | 12 +-
3 files changed, 157 insertions(+), 149 deletions(-)
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 04e88d05e8ff..55413d451ac3 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -54,58 +54,6 @@ static int efx_ethtool_phys_id(struct net_device *net_dev,
return 0;
}
-/* This must be called with rtnl_lock held. */
-static int
-efx_ethtool_get_link_ksettings(struct net_device *net_dev,
- struct ethtool_link_ksettings *cmd)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- struct efx_link_state *link_state = &efx->link_state;
- u32 supported;
-
- mutex_lock(&efx->mac_lock);
- efx->phy_op->get_link_ksettings(efx, cmd);
- mutex_unlock(&efx->mac_lock);
-
- /* Both MACs support pause frames (bidirectional and respond-only) */
- ethtool_convert_link_mode_to_legacy_u32(&supported,
- cmd->link_modes.supported);
-
- supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
-
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
- supported);
-
- if (LOOPBACK_INTERNAL(efx)) {
- cmd->base.speed = link_state->speed;
- cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
- }
-
- return 0;
-}
-
-/* This must be called with rtnl_lock held. */
-static int
-efx_ethtool_set_link_ksettings(struct net_device *net_dev,
- const struct ethtool_link_ksettings *cmd)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
-
- /* GMAC does not support 1000Mbps HD */
- if ((cmd->base.speed == SPEED_1000) &&
- (cmd->base.duplex != DUPLEX_FULL)) {
- netif_dbg(efx, drv, efx->net_dev,
- "rejecting unsupported 1000Mbps HD setting\n");
- return -EINVAL;
- }
-
- mutex_lock(&efx->mac_lock);
- rc = efx->phy_op->set_link_ksettings(efx, cmd);
- mutex_unlock(&efx->mac_lock);
- return rc;
-}
-
static int efx_ethtool_get_regs_len(struct net_device *net_dev)
{
return efx_nic_get_regs_len(netdev_priv(net_dev));
@@ -168,14 +116,6 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
test->flags |= ETH_TEST_FL_FAILED;
}
-/* Restart autonegotiation */
-static int efx_ethtool_nway_reset(struct net_device *net_dev)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
-
- return mdio45_nway_restart(&efx->mdio);
-}
-
/*
* Each channel has a single IRQ and moderation timer, started by any
* completion (or other event). Unless the module parameter
@@ -300,64 +240,6 @@ static int efx_ethtool_set_ringparam(struct net_device *net_dev,
return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
}
-static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
- struct ethtool_pauseparam *pause)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- u8 wanted_fc, old_fc;
- u32 old_adv;
- int rc = 0;
-
- mutex_lock(&efx->mac_lock);
-
- wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
- (pause->tx_pause ? EFX_FC_TX : 0) |
- (pause->autoneg ? EFX_FC_AUTO : 0));
-
- if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
- netif_dbg(efx, drv, efx->net_dev,
- "Flow control unsupported: tx ON rx OFF\n");
- rc = -EINVAL;
- goto out;
- }
-
- if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
- netif_dbg(efx, drv, efx->net_dev,
- "Autonegotiation is disabled\n");
- rc = -EINVAL;
- goto out;
- }
-
- /* Hook for Falcon bug 11482 workaround */
- if (efx->type->prepare_enable_fc_tx &&
- (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
- efx->type->prepare_enable_fc_tx(efx);
-
- old_adv = efx->link_advertising[0];
- old_fc = efx->wanted_fc;
- efx_link_set_wanted_fc(efx, wanted_fc);
- if (efx->link_advertising[0] != old_adv ||
- (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
- rc = efx->phy_op->reconfigure(efx);
- if (rc) {
- netif_err(efx, drv, efx->net_dev,
- "Unable to advertise requested flow "
- "control setting\n");
- goto out;
- }
- }
-
- /* Reconfigure the MAC. The PHY *may* generate a link state change event
- * if the user just changed the advertised capabilities, but there's no
- * harm doing this twice */
- efx_mac_reconfigure(efx);
-
-out:
- mutex_unlock(&efx->mac_lock);
-
- return rc;
-}
-
static void efx_ethtool_get_wol(struct net_device *net_dev,
struct ethtool_wolinfo *wol)
{
@@ -1104,36 +986,6 @@ static int efx_ethtool_get_module_info(struct net_device *net_dev,
return ret;
}
-static int efx_ethtool_get_fecparam(struct net_device *net_dev,
- struct ethtool_fecparam *fecparam)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
-
- if (!efx->phy_op || !efx->phy_op->get_fecparam)
- return -EOPNOTSUPP;
- mutex_lock(&efx->mac_lock);
- rc = efx->phy_op->get_fecparam(efx, fecparam);
- mutex_unlock(&efx->mac_lock);
-
- return rc;
-}
-
-static int efx_ethtool_set_fecparam(struct net_device *net_dev,
- struct ethtool_fecparam *fecparam)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
-
- if (!efx->phy_op || !efx->phy_op->get_fecparam)
- return -EOPNOTSUPP;
- mutex_lock(&efx->mac_lock);
- rc = efx->phy_op->set_fecparam(efx, fecparam);
- mutex_unlock(&efx->mac_lock);
-
- return rc;
-}
-
const struct ethtool_ops efx_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_USECS_IRQ |
diff --git a/drivers/net/ethernet/sfc/ethtool_common.c b/drivers/net/ethernet/sfc/ethtool_common.c
index b8d281ab6c7a..b91961126eeb 100644
--- a/drivers/net/ethernet/sfc/ethtool_common.c
+++ b/drivers/net/ethernet/sfc/ethtool_common.c
@@ -124,6 +124,14 @@ void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
efx->msg_enable = msg_enable;
}
+/* Restart autonegotiation */
+int efx_ethtool_nway_reset(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ return mdio45_nway_restart(&efx->mdio);
+}
+
void efx_ethtool_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
@@ -134,6 +142,64 @@ void efx_ethtool_get_pauseparam(struct net_device *net_dev,
pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
}
+int efx_ethtool_set_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ u8 wanted_fc, old_fc;
+ u32 old_adv;
+ int rc = 0;
+
+ mutex_lock(&efx->mac_lock);
+
+ wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
+ (pause->tx_pause ? EFX_FC_TX : 0) |
+ (pause->autoneg ? EFX_FC_AUTO : 0));
+
+ if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "Flow control unsupported: tx ON rx OFF\n");
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "Autonegotiation is disabled\n");
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /* Hook for Falcon bug 11482 workaround */
+ if (efx->type->prepare_enable_fc_tx &&
+ (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
+ efx->type->prepare_enable_fc_tx(efx);
+
+ old_adv = efx->link_advertising[0];
+ old_fc = efx->wanted_fc;
+ efx_link_set_wanted_fc(efx, wanted_fc);
+ if (efx->link_advertising[0] != old_adv ||
+ (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
+ rc = efx->phy_op->reconfigure(efx);
+ if (rc) {
+ netif_err(efx, drv, efx->net_dev,
+ "Unable to advertise requested flow "
+ "control setting\n");
+ goto out;
+ }
+ }
+
+ /* Reconfigure the MAC. The PHY *may* generate a link state change event
+ * if the user just changed the advertised capabilities, but there's no
+ * harm doing this twice */
+ efx_mac_reconfigure(efx);
+
+out:
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
+
/**
* efx_fill_test - fill in an individual self-test entry
* @test_index: Index of the test
@@ -455,3 +521,83 @@ void efx_ethtool_get_stats(struct net_device *net_dev,
efx_ptp_update_stats(efx, data);
}
+
+/* This must be called with rtnl_lock held. */
+int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_link_state *link_state = &efx->link_state;
+ u32 supported;
+
+ mutex_lock(&efx->mac_lock);
+ efx->phy_op->get_link_ksettings(efx, cmd);
+ mutex_unlock(&efx->mac_lock);
+
+ /* Both MACs support pause frames (bidirectional and respond-only) */
+ ethtool_convert_link_mode_to_legacy_u32(&supported,
+ cmd->link_modes.supported);
+
+ supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+
+ ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+ supported);
+
+ if (LOOPBACK_INTERNAL(efx)) {
+ cmd->base.speed = link_state->speed;
+ cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
+ }
+
+ return 0;
+}
+
+/* This must be called with rtnl_lock held. */
+int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc;
+
+ /* GMAC does not support 1000Mbps HD */
+ if ((cmd->base.speed == SPEED_1000) &&
+ (cmd->base.duplex != DUPLEX_FULL)) {
+ netif_dbg(efx, drv, efx->net_dev,
+ "rejecting unsupported 1000Mbps HD setting\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&efx->mac_lock);
+ rc = efx->phy_op->set_link_ksettings(efx, cmd);
+ mutex_unlock(&efx->mac_lock);
+ return rc;
+}
+
+int efx_ethtool_get_fecparam(struct net_device *net_dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc;
+
+ if (!efx->phy_op || !efx->phy_op->get_fecparam)
+ return -EOPNOTSUPP;
+ mutex_lock(&efx->mac_lock);
+ rc = efx->phy_op->get_fecparam(efx, fecparam);
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
+
+int efx_ethtool_set_fecparam(struct net_device *net_dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ int rc;
+
+ if (!efx->phy_op || !efx->phy_op->get_fecparam)
+ return -EOPNOTSUPP;
+ mutex_lock(&efx->mac_lock);
+ rc = efx->phy_op->set_fecparam(efx, fecparam);
+ mutex_unlock(&efx->mac_lock);
+
+ return rc;
+}
diff --git a/drivers/net/ethernet/sfc/ethtool_common.h b/drivers/net/ethernet/sfc/ethtool_common.h
index fa624313f330..eaa1fd9157f8 100644
--- a/drivers/net/ethernet/sfc/ethtool_common.h
+++ b/drivers/net/ethernet/sfc/ethtool_common.h
@@ -15,8 +15,11 @@ void efx_ethtool_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *info);
u32 efx_ethtool_get_msglevel(struct net_device *net_dev);
void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable);
+int efx_ethtool_nway_reset(struct net_device *net_dev);
void efx_ethtool_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause);
+int efx_ethtool_set_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause);
int efx_ethtool_fill_self_tests(struct efx_nic *efx,
struct efx_self_tests *tests,
u8 *strings, u64 *data);
@@ -26,5 +29,12 @@ void efx_ethtool_get_strings(struct net_device *net_dev, u32 string_set,
void efx_ethtool_get_stats(struct net_device *net_dev,
struct ethtool_stats *stats __attribute__ ((unused)),
u64 *data);
-
+int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
+ struct ethtool_link_ksettings *out);
+int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
+ const struct ethtool_link_ksettings *settings);
+int efx_ethtool_get_fecparam(struct net_device *net_dev,
+ struct ethtool_fecparam *fecparam);
+int efx_ethtool_set_fecparam(struct net_device *net_dev,
+ struct ethtool_fecparam *fecparam);
#endif
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