mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 17:48:58 +00:00
587b8b8e32
This is an automatically generated commit which aids following Kernel patch history, as git will see the move and copy as a rename thus defeating the purpose. See: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html for the original discussion. Signed-off-by: Mathew McBride <matt@traverse.com.au>
94 lines
2.9 KiB
Diff
94 lines
2.9 KiB
Diff
From e0ea63162cb5f1ca7f844d6ef5fc4079448ee2d5 Mon Sep 17 00:00:00 2001
|
|
From: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
Date: Tue, 29 Nov 2022 16:12:18 +0200
|
|
Subject: [PATCH 11/14] net: dpaa2-eth: connect to MAC before requesting the
|
|
"endpoint changed" IRQ
|
|
|
|
dpaa2_eth_connect_mac() is called both from dpaa2_eth_probe() and from
|
|
dpni_irq0_handler_thread().
|
|
|
|
It could happen that the DPNI gets connected to a DPMAC on the fsl-mc
|
|
bus exactly during probe, as soon as the "endpoint change" interrupt is
|
|
requested in dpaa2_eth_setup_irqs(). This will cause the
|
|
dpni_irq0_handler_thread() to register a phylink instance for that DPMAC.
|
|
|
|
Then, the probing function will also try to register a phylink instance
|
|
for the same DPMAC, operation which should fail (and this will fail the
|
|
probing of the driver).
|
|
|
|
Reorder dpaa2_eth_setup_irqs() and dpaa2_eth_connect_mac(), such that
|
|
dpni_irq0_handler_thread() never races with the DPMAC-related portion of
|
|
the probing path.
|
|
|
|
Also reorder dpaa2_eth_disconnect_mac() to be in the mirror position of
|
|
dpaa2_eth_connect_mac() in the teardown path.
|
|
|
|
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
|
|
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
|
|
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
---
|
|
.../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 18 +++++++++---------
|
|
1 file changed, 9 insertions(+), 9 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
|
|
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
|
|
@@ -4711,6 +4711,10 @@ static int dpaa2_eth_probe(struct fsl_mc
|
|
}
|
|
#endif
|
|
|
|
+ err = dpaa2_eth_connect_mac(priv);
|
|
+ if (err)
|
|
+ goto err_connect_mac;
|
|
+
|
|
err = dpaa2_eth_setup_irqs(dpni_dev);
|
|
if (err) {
|
|
netdev_warn(net_dev, "Failed to set link interrupt, fall back to polling\n");
|
|
@@ -4723,10 +4727,6 @@ static int dpaa2_eth_probe(struct fsl_mc
|
|
priv->do_link_poll = true;
|
|
}
|
|
|
|
- err = dpaa2_eth_connect_mac(priv);
|
|
- if (err)
|
|
- goto err_connect_mac;
|
|
-
|
|
err = dpaa2_eth_dl_alloc(priv);
|
|
if (err)
|
|
goto err_dl_register;
|
|
@@ -4762,13 +4762,13 @@ err_dl_port_add:
|
|
err_dl_trap_register:
|
|
dpaa2_eth_dl_free(priv);
|
|
err_dl_register:
|
|
- dpaa2_eth_disconnect_mac(priv);
|
|
-err_connect_mac:
|
|
if (priv->do_link_poll)
|
|
kthread_stop(priv->poll_thread);
|
|
else
|
|
fsl_mc_free_irqs(dpni_dev);
|
|
err_poll_thread:
|
|
+ dpaa2_eth_disconnect_mac(priv);
|
|
+err_connect_mac:
|
|
dpaa2_eth_free_rings(priv);
|
|
err_alloc_rings:
|
|
err_csum:
|
|
@@ -4816,9 +4816,6 @@ static int dpaa2_eth_remove(struct fsl_m
|
|
#endif
|
|
|
|
unregister_netdev(net_dev);
|
|
- rtnl_lock();
|
|
- dpaa2_eth_disconnect_mac(priv);
|
|
- rtnl_unlock();
|
|
|
|
dpaa2_eth_dl_port_del(priv);
|
|
dpaa2_eth_dl_traps_unregister(priv);
|
|
@@ -4829,6 +4826,9 @@ static int dpaa2_eth_remove(struct fsl_m
|
|
else
|
|
fsl_mc_free_irqs(ls_dev);
|
|
|
|
+ rtnl_lock();
|
|
+ dpaa2_eth_disconnect_mac(priv);
|
|
+ rtnl_unlock();
|
|
dpaa2_eth_free_rings(priv);
|
|
free_percpu(priv->fd);
|
|
free_percpu(priv->sgt_cache);
|