diff options
| author | Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com> | 2022-06-23 15:46:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-20 12:28:00 +0200 |
| commit | 1bd66f1053be6361fa912c7f1a3253e5ed345e0f (patch) | |
| tree | 06122c37481dbec0c0a6f640f4f1d4e751ec883f | |
| parent | c128bff9ff35dcafb6ca87463925bcbe8fd6c9df (diff) | |
net: dp83822: disable rx error interrupt
commit 0e597e2affb90d6ea48df6890d882924acf71e19 upstream.
Some RX errors, notably when disconnecting the cable, increase the RCSR
register. Once half full (0x7fff), an interrupt flood is generated. I
measured ~3k/s interrupts even after the RX errors transfer was
stopped.
Since we don't read and clear the RCSR register, we should disable this
interrupt.
Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission")
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/phy/dp83822.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/phy/dp83822.c b/drivers/net/phy/dp83822.c index cc1522550f2c..da3983352dd4 100644 --- a/drivers/net/phy/dp83822.c +++ b/drivers/net/phy/dp83822.c @@ -197,8 +197,7 @@ static int dp83822_config_intr(struct phy_device *phydev) if (misr_status < 0) return misr_status; - misr_status |= (DP83822_RX_ERR_HF_INT_EN | - DP83822_ANEG_COMPLETE_INT_EN | + misr_status |= (DP83822_ANEG_COMPLETE_INT_EN | DP83822_DUP_MODE_CHANGE_INT_EN | DP83822_SPEED_CHANGED_INT_EN | DP83822_LINK_STAT_INT_EN | |