| Message ID | 20210630001419.402366-1-opendmb@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 5a3c680aa2c12c90c44af383fe6882a39875ab81 |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net,v2] net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear | expand |
| Context | Check | Description |
|---|---|---|
| netdev/cover_letter | success | Link |
| netdev/fixes_present | success | Link |
| netdev/patch_count | success | Link |
| netdev/tree_selection | success | Clearly marked for net |
| netdev/subject_prefix | success | Link |
| netdev/cc_maintainers | success | CCed 6 of 6 maintainers |
| netdev/source_inline | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Link |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/verify_fixes | success | Link |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 59 lines checked |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/header_inline | success | Link |
On 6/29/2021 5:14 PM, Doug Berger wrote: > Setting the EXT_ENERGY_DET_MASK bit allows the port energy detection > logic of the internal PHY to prevent the system from sleeping. Some > internal PHYs will report that energy is detected when the network > interface is closed which can prevent the system from going to sleep > if WoL is enabled when the interface is brought down. > > Since the driver does not support waking the system on this logic, > this commit clears the bit whenever the internal PHY is powered up > and the other logic for manipulating the bit is removed since it > serves no useful function. > > Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") > Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Hello: This patch was applied to netdev/net.git (refs/heads/master): On Tue, 29 Jun 2021 17:14:19 -0700 you wrote: > Setting the EXT_ENERGY_DET_MASK bit allows the port energy detection > logic of the internal PHY to prevent the system from sleeping. Some > internal PHYs will report that energy is detected when the network > interface is closed which can prevent the system from going to sleep > if WoL is enabled when the interface is brought down. > > Since the driver does not support waking the system on this logic, > this commit clears the bit whenever the internal PHY is powered up > and the other logic for manipulating the bit is removed since it > serves no useful function. > > [...] Here is the summary with links: - [net,v2] net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear https://git.kernel.org/netdev/net/c/5a3c680aa2c1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 41f7f078cd27..35e9956e930c 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1640,7 +1640,8 @@ static void bcmgenet_power_up(struct bcmgenet_priv *priv, switch (mode) { case GENET_POWER_PASSIVE: - reg &= ~(EXT_PWR_DOWN_DLL | EXT_PWR_DOWN_BIAS); + reg &= ~(EXT_PWR_DOWN_DLL | EXT_PWR_DOWN_BIAS | + EXT_ENERGY_DET_MASK); if (GENET_IS_V5(priv)) { reg &= ~(EXT_PWR_DOWN_PHY_EN | EXT_PWR_DOWN_PHY_RD | @@ -3292,7 +3293,6 @@ static int bcmgenet_open(struct net_device *dev) { struct bcmgenet_priv *priv = netdev_priv(dev); unsigned long dma_ctrl; - u32 reg; int ret; netif_dbg(priv, ifup, dev, "bcmgenet_open\n"); @@ -3318,12 +3318,6 @@ static int bcmgenet_open(struct net_device *dev) bcmgenet_set_hw_addr(priv, dev->dev_addr); - if (priv->internal_phy) { - reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT); - reg |= EXT_ENERGY_DET_MASK; - bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT); - } - /* Disable RX/TX DMA and flush TX queues */ dma_ctrl = bcmgenet_dma_disable(priv); @@ -4139,7 +4133,6 @@ static int bcmgenet_resume(struct device *d) struct bcmgenet_priv *priv = netdev_priv(dev); struct bcmgenet_rxnfc_rule *rule; unsigned long dma_ctrl; - u32 reg; int ret; if (!netif_running(dev)) @@ -4176,12 +4169,6 @@ static int bcmgenet_resume(struct device *d) if (rule->state != BCMGENET_RXNFC_STATE_UNUSED) bcmgenet_hfb_create_rxnfc_filter(priv, rule); - if (priv->internal_phy) { - reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT); - reg |= EXT_ENERGY_DET_MASK; - bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT); - } - /* Disable RX/TX DMA and flush TX queues */ dma_ctrl = bcmgenet_dma_disable(priv); diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c index facde824bcaa..e31a5a397f11 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c @@ -186,12 +186,6 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv, reg |= CMD_RX_EN; bcmgenet_umac_writel(priv, reg, UMAC_CMD); - if (priv->hw_params->flags & GENET_HAS_EXT) { - reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT); - reg &= ~EXT_ENERGY_DET_MASK; - bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT); - } - reg = UMAC_IRQ_MPD_R; if (hfb_enable) reg |= UMAC_IRQ_HFB_SM | UMAC_IRQ_HFB_MM;
Setting the EXT_ENERGY_DET_MASK bit allows the port energy detection logic of the internal PHY to prevent the system from sleeping. Some internal PHYs will report that energy is detected when the network interface is closed which can prevent the system from going to sleep if WoL is enabled when the interface is brought down. Since the driver does not support waking the system on this logic, this commit clears the bit whenever the internal PHY is powered up and the other logic for manipulating the bit is removed since it serves no useful function. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger <opendmb@gmail.com> --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 17 ++--------------- .../net/ethernet/broadcom/genet/bcmgenet_wol.c | 6 ------ 2 files changed, 2 insertions(+), 21 deletions(-)