diff options
16 files changed, 2 insertions, 1325 deletions
diff --git a/target/linux/armsr/armv7/config-6.1 b/target/linux/armsr/armv7/config-6.6 index 664ef2e05b..664ef2e05b 100644 --- a/target/linux/armsr/armv7/config-6.1 +++ b/target/linux/armsr/armv7/config-6.6 diff --git a/target/linux/armsr/armv8/config-6.1 b/target/linux/armsr/armv8/config-6.6 index 0ead973064..0ead973064 100644 --- a/target/linux/armsr/armv8/config-6.1 +++ b/target/linux/armsr/armv8/config-6.6 diff --git a/target/linux/armsr/config-6.1 b/target/linux/armsr/config-6.6 index d1dac69da4..d1dac69da4 100644 --- a/target/linux/armsr/config-6.1 +++ b/target/linux/armsr/config-6.6 diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0001-net-dpaa2-eth-don-t-use-ENOTSUPP-error-code.patch b/target/linux/armsr/patches-6.1/701-v6.2-0001-net-dpaa2-eth-don-t-use-ENOTSUPP-error-code.patch deleted file mode 100644 index ec72f91d0f..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0001-net-dpaa2-eth-don-t-use-ENOTSUPP-error-code.patch +++ /dev/null @@ -1,44 +0,0 @@ -From f3763a0c1b07273218cbf5886bdf8df9df501111 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:10 +0200 -Subject: [PATCH 03/14] net: dpaa2-eth: don't use -ENOTSUPP error code - -dpaa2_eth_setup_dpni() is called from the probe path and -dpaa2_eth_set_link_ksettings() is propagated to user space. - -include/linux/errno.h says that ENOTSUPP is "Defined for the NFSv3 -protocol". Conventional wisdom has it to not use it in networking -drivers. Replace it with -EOPNOTSUPP. - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Signed-off-by: Paolo Abeni <pabeni@redhat.com> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +- - drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 2 +- - 2 files changed, 2 insertions(+), 2 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -3614,7 +3614,7 @@ static int dpaa2_eth_setup_dpni(struct f - dev_err(dev, "DPNI version %u.%u not supported, need >= %u.%u\n", - priv->dpni_ver_major, priv->dpni_ver_minor, - DPNI_VER_MAJOR, DPNI_VER_MINOR); -- err = -ENOTSUPP; -+ err = -EOPNOTSUPP; - goto close; - } - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -@@ -118,7 +118,7 @@ dpaa2_eth_set_link_ksettings(struct net_ - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); - - if (!dpaa2_eth_is_type_phy(priv)) -- return -ENOTSUPP; -+ return -EOPNOTSUPP; - - return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings); - } diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0002-net-dpaa2-replace-dpaa2_mac_is_type_fixed-with-dpaa2.patch b/target/linux/armsr/patches-6.1/701-v6.2-0002-net-dpaa2-replace-dpaa2_mac_is_type_fixed-with-dpaa2.patch deleted file mode 100644 index 501eaf42ff..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0002-net-dpaa2-replace-dpaa2_mac_is_type_fixed-with-dpaa2.patch +++ /dev/null @@ -1,99 +0,0 @@ -From 022a11062261dc4703da846d3bf4d194ef6bebf5 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:11 +0200 -Subject: [PATCH 04/14] net: dpaa2: replace dpaa2_mac_is_type_fixed() with - dpaa2_mac_is_type_phy() - -dpaa2_mac_is_type_fixed() is a header with no implementation and no -callers, which is referenced from the documentation though. It can be -deleted. - -On the other hand, it would be useful to reuse the code between -dpaa2_eth_is_type_phy() and dpaa2_switch_port_is_type_phy(). That common -code should be called dpaa2_mac_is_type_phy(), so let's create that. - -The removal and the addition are merged into the same patch because, -in fact, is_type_phy() is the logical opposite of is_type_fixed(). - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Signed-off-by: Paolo Abeni <pabeni@redhat.com> ---- - .../ethernet/freescale/dpaa2/mac-phy-support.rst | 9 ++++++--- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 7 +------ - drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h | 10 ++++++++-- - drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h | 7 +------ - 4 files changed, 16 insertions(+), 17 deletions(-) - ---- a/Documentation/networking/device_drivers/ethernet/freescale/dpaa2/mac-phy-support.rst -+++ b/Documentation/networking/device_drivers/ethernet/freescale/dpaa2/mac-phy-support.rst -@@ -181,10 +181,13 @@ when necessary using the below listed AP - - int dpaa2_mac_connect(struct dpaa2_mac *mac); - - void dpaa2_mac_disconnect(struct dpaa2_mac *mac); - --A phylink integration is necessary only when the partner DPMAC is not of TYPE_FIXED. --One can check for this condition using the below API:: -+A phylink integration is necessary only when the partner DPMAC is not of -+``TYPE_FIXED``. This means it is either of ``TYPE_PHY``, or of -+``TYPE_BACKPLANE`` (the difference being the two that in the ``TYPE_BACKPLANE`` -+mode, the MC firmware does not access the PCS registers). One can check for -+this condition using the following helper:: - -- - bool dpaa2_mac_is_type_fixed(struct fsl_mc_device *dpmac_dev,struct fsl_mc_io *mc_io); -+ - static inline bool dpaa2_mac_is_type_phy(struct dpaa2_mac *mac); - - Before connection to a MAC, the caller must allocate and populate the - dpaa2_mac structure with the associated net_device, a pointer to the MC portal ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -@@ -733,12 +733,7 @@ static inline unsigned int dpaa2_eth_rx_ - - static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv) - { -- if (priv->mac && -- (priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY || -- priv->mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE)) -- return true; -- -- return false; -+ return dpaa2_mac_is_type_phy(priv->mac); - } - - static inline bool dpaa2_eth_has_mac(struct dpaa2_eth_priv *priv) ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.h -@@ -30,8 +30,14 @@ struct dpaa2_mac { - struct phy *serdes_phy; - }; - --bool dpaa2_mac_is_type_fixed(struct fsl_mc_device *dpmac_dev, -- struct fsl_mc_io *mc_io); -+static inline bool dpaa2_mac_is_type_phy(struct dpaa2_mac *mac) -+{ -+ if (!mac) -+ return false; -+ -+ return mac->attr.link_type == DPMAC_LINK_TYPE_PHY || -+ mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE; -+} - - int dpaa2_mac_open(struct dpaa2_mac *mac); - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h -@@ -230,12 +230,7 @@ static inline bool dpaa2_switch_supports - static inline bool - dpaa2_switch_port_is_type_phy(struct ethsw_port_priv *port_priv) - { -- if (port_priv->mac && -- (port_priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY || -- port_priv->mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE)) -- return true; -- -- return false; -+ return dpaa2_mac_is_type_phy(port_priv->mac); - } - - static inline bool dpaa2_switch_port_has_mac(struct ethsw_port_priv *port_priv) diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0003-net-dpaa2-mac-absorb-phylink_start-call-into-dpaa2_m.patch b/target/linux/armsr/patches-6.1/701-v6.2-0003-net-dpaa2-mac-absorb-phylink_start-call-into-dpaa2_m.patch deleted file mode 100644 index af5ff2aea6..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0003-net-dpaa2-mac-absorb-phylink_start-call-into-dpaa2_m.patch +++ /dev/null @@ -1,88 +0,0 @@ -From 97c07369ab8bf9895e05d4b468f18e6567263154 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:12 +0200 -Subject: [PATCH 05/14] net: dpaa2-mac: absorb phylink_start() call into - dpaa2_mac_start() - -The phylink handling is intended to be hidden inside the dpaa2_mac -object. Move the phylink_start() call into dpaa2_mac_start(), and -phylink_stop() into dpaa2_mac_stop(). - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Signed-off-by: Paolo Abeni <pabeni@redhat.com> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 5 +---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 8 ++++++++ - drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 5 +---- - 3 files changed, 10 insertions(+), 8 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -2083,10 +2083,8 @@ static int dpaa2_eth_open(struct net_dev - goto enable_err; - } - -- if (dpaa2_eth_is_type_phy(priv)) { -+ if (dpaa2_eth_is_type_phy(priv)) - dpaa2_mac_start(priv->mac); -- phylink_start(priv->mac->phylink); -- } - - return 0; - -@@ -2160,7 +2158,6 @@ static int dpaa2_eth_stop(struct net_dev - int retries = 10; - - if (dpaa2_eth_is_type_phy(priv)) { -- phylink_stop(priv->mac->phylink); - dpaa2_mac_stop(priv->mac); - } else { - netif_tx_stop_all_queues(net_dev); ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -@@ -336,12 +336,20 @@ static void dpaa2_mac_set_supported_inte - - void dpaa2_mac_start(struct dpaa2_mac *mac) - { -+ ASSERT_RTNL(); -+ - if (mac->serdes_phy) - phy_power_on(mac->serdes_phy); -+ -+ phylink_start(mac->phylink); - } - - void dpaa2_mac_stop(struct dpaa2_mac *mac) - { -+ ASSERT_RTNL(); -+ -+ phylink_stop(mac->phylink); -+ - if (mac->serdes_phy) - phy_power_off(mac->serdes_phy); - } ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -@@ -703,10 +703,8 @@ static int dpaa2_switch_port_open(struct - - dpaa2_switch_enable_ctrl_if_napi(ethsw); - -- if (dpaa2_switch_port_is_type_phy(port_priv)) { -+ if (dpaa2_switch_port_is_type_phy(port_priv)) - dpaa2_mac_start(port_priv->mac); -- phylink_start(port_priv->mac->phylink); -- } - - return 0; - } -@@ -718,7 +716,6 @@ static int dpaa2_switch_port_stop(struct - int err; - - if (dpaa2_switch_port_is_type_phy(port_priv)) { -- phylink_stop(port_priv->mac->phylink); - dpaa2_mac_stop(port_priv->mac); - } else { - netif_tx_stop_all_queues(netdev); diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0004-net-dpaa2-mac-remove-defensive-check-in-dpaa2_mac_di.patch b/target/linux/armsr/patches-6.1/701-v6.2-0004-net-dpaa2-mac-remove-defensive-check-in-dpaa2_mac_di.patch deleted file mode 100644 index c3028357fe..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0004-net-dpaa2-mac-remove-defensive-check-in-dpaa2_mac_di.patch +++ /dev/null @@ -1,50 +0,0 @@ -From 095ef388f714d622aa503fcccf20dc4095b72762 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:13 +0200 -Subject: [PATCH 06/14] net: dpaa2-mac: remove defensive check in - dpaa2_mac_disconnect() - -dpaa2_mac_disconnect() will only be called with a NULL mac->phylink if -dpaa2_mac_connect() failed, or was never called. - -The callers are these: - -dpaa2_eth_disconnect_mac(): - - if (dpaa2_eth_is_type_phy(priv)) - dpaa2_mac_disconnect(priv->mac); - -dpaa2_switch_port_disconnect_mac(): - - if (dpaa2_switch_port_is_type_phy(port_priv)) - dpaa2_mac_disconnect(port_priv->mac); - -priv->mac can be NULL, but in that case, dpaa2_eth_is_type_phy() returns -false, and dpaa2_mac_disconnect() is never called. Similar for -dpaa2-switch. - -When priv->mac is non-NULL, it means that dpaa2_mac_connect() returned -zero (success), and therefore, priv->mac->phylink is also a valid -pointer. - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Signed-off-by: Paolo Abeni <pabeni@redhat.com> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 3 --- - 1 file changed, 3 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -@@ -446,9 +446,6 @@ err_pcs_destroy: - - void dpaa2_mac_disconnect(struct dpaa2_mac *mac) - { -- if (!mac->phylink) -- return; -- - phylink_disconnect_phy(mac->phylink); - phylink_destroy(mac->phylink); - dpaa2_pcs_destroy(mac); diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0005-net-dpaa2-eth-assign-priv-mac-after-dpaa2_mac_connec.patch b/target/linux/armsr/patches-6.1/701-v6.2-0005-net-dpaa2-eth-assign-priv-mac-after-dpaa2_mac_connec.patch deleted file mode 100644 index c31a470182..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0005-net-dpaa2-eth-assign-priv-mac-after-dpaa2_mac_connec.patch +++ /dev/null @@ -1,101 +0,0 @@ -From 06efc9b8a1360cad83cae6e71558e5458cc1fbf3 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:14 +0200 -Subject: [PATCH 07/14] net: dpaa2-eth: assign priv->mac after - dpaa2_mac_connect() call - -There are 2 requirements for correct code: - -- Any time the driver accesses the priv->mac pointer at runtime, it - either holds NULL to indicate a DPNI-DPNI connection (or unconnected - DPNI), or a struct dpaa2_mac whose phylink instance was fully - initialized (created and connected to the PHY). No changes are made to - priv->mac while it is being used. Currently, rtnl_lock() watches over - the call to dpaa2_eth_connect_mac(), so it serves the purpose of - serializing this with all readers of priv->mac. - -- dpaa2_mac_connect() should run unlocked, because inside it are 2 - phylink calls with incompatible locking requirements: phylink_create() - requires that the rtnl_mutex isn't held, and phylink_fwnode_phy_connect() - requires that the rtnl_mutex is held. The only way to solve those - contradictory requirements is to let dpaa2_mac_connect() take - rtnl_lock() when it needs to. - -To solve both requirements, we need to identify the writer side of the -priv->mac pointer, which can be wrapped in a mutex private to the driver -in a future patch. The dpaa2_mac_connect() cannot be part of the writer -side critical section, because of an AB/BA deadlock with rtnl_lock(). - -So the strategy needs to be that where we prepare the DPMAC by calling -dpaa2_mac_connect(), and only make priv->mac point to it once it's fully -prepared. This ensures that the writer side critical section has the -absolute minimum surface it can. - -The reverse strategy is adopted in the dpaa2_eth_disconnect_mac() code -path. This makes sure that priv->mac is NULL when we start tearing down -the DPMAC that we disconnected from, and concurrent code will simply not -see it. - -No locking changes in this patch (concurrent code is still blocked by -the rtnl_mutex). - -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 | 21 +++++++++++-------- - 1 file changed, 12 insertions(+), 9 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -4444,9 +4444,8 @@ static int dpaa2_eth_connect_mac(struct - err = dpaa2_mac_open(mac); - if (err) - goto err_free_mac; -- priv->mac = mac; - -- if (dpaa2_eth_is_type_phy(priv)) { -+ if (dpaa2_mac_is_type_phy(mac)) { - err = dpaa2_mac_connect(mac); - if (err && err != -EPROBE_DEFER) - netdev_err(priv->net_dev, "Error connecting to the MAC endpoint: %pe", -@@ -4455,11 +4454,12 @@ static int dpaa2_eth_connect_mac(struct - goto err_close_mac; - } - -+ priv->mac = mac; -+ - return 0; - - err_close_mac: - dpaa2_mac_close(mac); -- priv->mac = NULL; - err_free_mac: - kfree(mac); - return err; -@@ -4467,15 +4467,18 @@ err_free_mac: - - static void dpaa2_eth_disconnect_mac(struct dpaa2_eth_priv *priv) - { -- if (dpaa2_eth_is_type_phy(priv)) -- dpaa2_mac_disconnect(priv->mac); -+ struct dpaa2_mac *mac = priv->mac; -+ -+ priv->mac = NULL; - -- if (!dpaa2_eth_has_mac(priv)) -+ if (!mac) - return; - -- dpaa2_mac_close(priv->mac); -- kfree(priv->mac); -- priv->mac = NULL; -+ if (dpaa2_mac_is_type_phy(mac)) -+ dpaa2_mac_disconnect(mac); -+ -+ dpaa2_mac_close(mac); -+ kfree(mac); - } - - static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg) diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0006-net-dpaa2-switch-assign-port_priv-mac-after-dpaa2_ma.patch b/target/linux/armsr/patches-6.1/701-v6.2-0006-net-dpaa2-switch-assign-port_priv-mac-after-dpaa2_ma.patch deleted file mode 100644 index e63654984a..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0006-net-dpaa2-switch-assign-port_priv-mac-after-dpaa2_ma.patch +++ /dev/null @@ -1,73 +0,0 @@ -From a5e7f7e277bd4403c45c1c7922d56d0eb08dbc7c Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:15 +0200 -Subject: [PATCH 08/14] net: dpaa2-switch: assign port_priv->mac after - dpaa2_mac_connect() call - -The dpaa2-switch has the exact same locking requirements when connected -to a DPMAC, so it needs port_priv->mac to always point either to NULL, -or to a DPMAC with a fully initialized phylink instance. - -Make the same preparatory change in the dpaa2-switch driver as in the -dpaa2-eth one. - -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> ---- - .../ethernet/freescale/dpaa2/dpaa2-switch.c | 21 +++++++++++-------- - 1 file changed, 12 insertions(+), 9 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -@@ -1450,9 +1450,8 @@ static int dpaa2_switch_port_connect_mac - err = dpaa2_mac_open(mac); - if (err) - goto err_free_mac; -- port_priv->mac = mac; - -- if (dpaa2_switch_port_is_type_phy(port_priv)) { -+ if (dpaa2_mac_is_type_phy(mac)) { - err = dpaa2_mac_connect(mac); - if (err) { - netdev_err(port_priv->netdev, -@@ -1462,11 +1461,12 @@ static int dpaa2_switch_port_connect_mac - } - } - -+ port_priv->mac = mac; -+ - return 0; - - err_close_mac: - dpaa2_mac_close(mac); -- port_priv->mac = NULL; - err_free_mac: - kfree(mac); - return err; -@@ -1474,15 +1474,18 @@ err_free_mac: - - static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv) - { -- if (dpaa2_switch_port_is_type_phy(port_priv)) -- dpaa2_mac_disconnect(port_priv->mac); -+ struct dpaa2_mac *mac = port_priv->mac; -+ -+ port_priv->mac = NULL; - -- if (!dpaa2_switch_port_has_mac(port_priv)) -+ if (!mac) - return; - -- dpaa2_mac_close(port_priv->mac); -- kfree(port_priv->mac); -- port_priv->mac = NULL; -+ if (dpaa2_mac_is_type_phy(mac)) -+ dpaa2_mac_disconnect(mac); -+ -+ dpaa2_mac_close(mac); -+ kfree(mac); - } - - static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg) diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0007-net-dpaa2-publish-MAC-stringset-to-ethtool-S-even-if.patch b/target/linux/armsr/patches-6.1/701-v6.2-0007-net-dpaa2-publish-MAC-stringset-to-ethtool-S-even-if.patch deleted file mode 100644 index c790ba1bd5..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0007-net-dpaa2-publish-MAC-stringset-to-ethtool-S-even-if.patch +++ /dev/null @@ -1,111 +0,0 @@ -From ce44b6ed9ee65efa9b3025552c513842eabcab88 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:16 +0200 -Subject: [PATCH 09/14] net: dpaa2: publish MAC stringset to ethtool -S even if - MAC is missing - -DPNIs and DPSW objects can connect and disconnect at runtime from DPMAC -objects on the same fsl-mc bus. The DPMAC object also holds "ethtool -S" -unstructured counters. Those counters are only shown for the entity -owning the netdev (DPNI, DPSW) if it's connected to a DPMAC. - -The ethtool stringset code path is split into multiple callbacks, but -currently, connecting and disconnecting the DPMAC takes the rtnl_lock(). -This blocks the entire ethtool code path from running, see -ethnl_default_doit() -> rtnl_lock() -> ops->prepare_data() -> -strset_prepare_data(). - -This is going to be a problem if we are going to no longer require -rtnl_lock() when connecting/disconnecting the DPMAC, because the DPMAC -could appear between ops->get_sset_count() and ops->get_strings(). -If it appears out of the blue, we will provide a stringset into an array -that was dimensioned thinking the DPMAC wouldn't be there => array -accessed out of bounds. - -There isn't really a good way to work around that, and I don't want to -put too much pressure on the ethtool framework by playing locking games. -Just make the DPMAC counters be always available. They'll be zeroes if -the DPNI or DPSW isn't connected to a DPMAC. - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> -Signed-off-by: Paolo Abeni <pabeni@redhat.com> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 12 +++--------- - .../ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c | 11 ++--------- - 2 files changed, 5 insertions(+), 18 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -@@ -186,7 +186,6 @@ static int dpaa2_eth_set_pauseparam(stru - static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset, - u8 *data) - { -- struct dpaa2_eth_priv *priv = netdev_priv(netdev); - u8 *p = data; - int i; - -@@ -200,22 +199,17 @@ static void dpaa2_eth_get_strings(struct - strscpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN); - p += ETH_GSTRING_LEN; - } -- if (dpaa2_eth_has_mac(priv)) -- dpaa2_mac_get_strings(p); -+ dpaa2_mac_get_strings(p); - break; - } - } - - static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset) - { -- int num_ss_stats = DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS; -- struct dpaa2_eth_priv *priv = netdev_priv(net_dev); -- - switch (sset) { - case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */ -- if (dpaa2_eth_has_mac(priv)) -- num_ss_stats += dpaa2_mac_get_sset_count(); -- return num_ss_stats; -+ return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS + -+ dpaa2_mac_get_sset_count(); - default: - return -EOPNOTSUPP; - } ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -@@ -145,14 +145,9 @@ dpaa2_switch_set_link_ksettings(struct n - static int - dpaa2_switch_ethtool_get_sset_count(struct net_device *netdev, int sset) - { -- struct ethsw_port_priv *port_priv = netdev_priv(netdev); -- int num_ss_stats = DPAA2_SWITCH_NUM_COUNTERS; -- - switch (sset) { - case ETH_SS_STATS: -- if (port_priv->mac) -- num_ss_stats += dpaa2_mac_get_sset_count(); -- return num_ss_stats; -+ return DPAA2_SWITCH_NUM_COUNTERS + dpaa2_mac_get_sset_count(); - default: - return -EOPNOTSUPP; - } -@@ -161,7 +156,6 @@ dpaa2_switch_ethtool_get_sset_count(stru - static void dpaa2_switch_ethtool_get_strings(struct net_device *netdev, - u32 stringset, u8 *data) - { -- struct ethsw_port_priv *port_priv = netdev_priv(netdev); - u8 *p = data; - int i; - -@@ -172,8 +166,7 @@ static void dpaa2_switch_ethtool_get_str - ETH_GSTRING_LEN); - p += ETH_GSTRING_LEN; - } -- if (port_priv->mac) -- dpaa2_mac_get_strings(p); -+ dpaa2_mac_get_strings(p); - break; - } - } diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0008-net-dpaa2-switch-replace-direct-MAC-access-with-dpaa.patch b/target/linux/armsr/patches-6.1/701-v6.2-0008-net-dpaa2-switch-replace-direct-MAC-access-with-dpaa.patch deleted file mode 100644 index 0663bf6fb1..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0008-net-dpaa2-switch-replace-direct-MAC-access-with-dpaa.patch +++ /dev/null @@ -1,28 +0,0 @@ -From c838d9fd7e6ba9ddd6006bf0a296396266e9f121 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:17 +0200 -Subject: [PATCH 10/14] net: dpaa2-switch replace direct MAC access with - dpaa2_switch_port_has_mac() - -The helper function will gain a lockdep annotation in a future patch. -Make sure to benefit from it. - -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> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -@@ -189,7 +189,7 @@ static void dpaa2_switch_ethtool_get_sta - dpaa2_switch_ethtool_counters[i].name, err); - } - -- if (port_priv->mac) -+ if (dpaa2_switch_port_has_mac(port_priv)) - dpaa2_mac_get_ethtool_stats(port_priv->mac, data + i); - } - diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0009-net-dpaa2-eth-connect-to-MAC-before-requesting-the-e.patch b/target/linux/armsr/patches-6.1/701-v6.2-0009-net-dpaa2-eth-connect-to-MAC-before-requesting-the-e.patch deleted file mode 100644 index 4e39e9a0ac..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0009-net-dpaa2-eth-connect-to-MAC-before-requesting-the-e.patch +++ /dev/null @@ -1,93 +0,0 @@ -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); diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0010-net-dpaa2-eth-serialize-changes-to-priv-mac-with-a-m.patch b/target/linux/armsr/patches-6.1/701-v6.2-0010-net-dpaa2-eth-serialize-changes-to-priv-mac-with-a-m.patch deleted file mode 100644 index 9b068ce8f5..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0010-net-dpaa2-eth-serialize-changes-to-priv-mac-with-a-m.patch +++ /dev/null @@ -1,320 +0,0 @@ -From 5e448a17dfa2e95166534df7f677a3694ef6187d Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:19 +0200 -Subject: [PATCH 12/14] net: dpaa2-eth: serialize changes to priv->mac with a - mutex - -The dpaa2 architecture permits dynamic connections between objects on -the fsl-mc bus, specifically between a DPNI object (represented by a -struct net_device) and a DPMAC object (represented by a struct phylink). - -The DPNI driver is notified when those connections are created/broken -through the dpni_irq0_handler_thread() method. To ensure that ethtool -operations, as well as netdev up/down operations serialize with the -connection/disconnection of the DPNI with a DPMAC, -dpni_irq0_handler_thread() takes the rtnl_lock() to block those other -operations from taking place. - -There is code called by dpaa2_mac_connect() which wants to acquire the -rtnl_mutex once again, see phylink_create() -> phylink_register_sfp() -> -sfp_bus_add_upstream() -> rtnl_lock(). So the strategy doesn't quite -work out, even though it's fairly simple. - -Create a different strategy, where all code paths in the dpaa2-eth -driver access priv->mac only while they are holding priv->mac_lock. -The phylink instance is not created or connected to the PHY under the -priv->mac_lock, but only assigned to priv->mac then. This will eliminate -the reliance on the rtnl_mutex. - -Add lockdep annotations and put comments where holding the lock is not -necessary, and priv->mac can be dereferenced freely. - -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 | 43 ++++++++++++-- - .../net/ethernet/freescale/dpaa2/dpaa2-eth.h | 6 ++ - .../ethernet/freescale/dpaa2/dpaa2-ethtool.c | 58 +++++++++++++++---- - 3 files changed, 91 insertions(+), 16 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -2021,8 +2021,11 @@ static int dpaa2_eth_link_state_update(s - - /* When we manage the MAC/PHY using phylink there is no need - * to manually update the netif_carrier. -+ * We can avoid locking because we are called from the "link changed" -+ * IRQ handler, which is the same as the "endpoint changed" IRQ handler -+ * (the writer to priv->mac), so we cannot race with it. - */ -- if (dpaa2_eth_is_type_phy(priv)) -+ if (dpaa2_mac_is_type_phy(priv->mac)) - goto out; - - /* Chech link state; speed / duplex changes are not treated yet */ -@@ -2061,6 +2064,8 @@ static int dpaa2_eth_open(struct net_dev - priv->dpbp_dev->obj_desc.id, priv->bpid); - } - -+ mutex_lock(&priv->mac_lock); -+ - if (!dpaa2_eth_is_type_phy(priv)) { - /* We'll only start the txqs when the link is actually ready; - * make sure we don't race against the link up notification, -@@ -2079,6 +2084,7 @@ static int dpaa2_eth_open(struct net_dev - - err = dpni_enable(priv->mc_io, 0, priv->mc_token); - if (err < 0) { -+ mutex_unlock(&priv->mac_lock); - netdev_err(net_dev, "dpni_enable() failed\n"); - goto enable_err; - } -@@ -2086,6 +2092,8 @@ static int dpaa2_eth_open(struct net_dev - if (dpaa2_eth_is_type_phy(priv)) - dpaa2_mac_start(priv->mac); - -+ mutex_unlock(&priv->mac_lock); -+ - return 0; - - enable_err: -@@ -2157,6 +2165,8 @@ static int dpaa2_eth_stop(struct net_dev - int dpni_enabled = 0; - int retries = 10; - -+ mutex_lock(&priv->mac_lock); -+ - if (dpaa2_eth_is_type_phy(priv)) { - dpaa2_mac_stop(priv->mac); - } else { -@@ -2164,6 +2174,8 @@ static int dpaa2_eth_stop(struct net_dev - netif_carrier_off(net_dev); - } - -+ mutex_unlock(&priv->mac_lock); -+ - /* On dpni_disable(), the MC firmware will: - * - stop MAC Rx and wait for all Rx frames to be enqueued to software - * - cut off WRIOP dequeues from egress FQs and wait until transmission -@@ -2489,12 +2501,20 @@ static int dpaa2_eth_ts_ioctl(struct net - static int dpaa2_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) - { - struct dpaa2_eth_priv *priv = netdev_priv(dev); -+ int err; - - if (cmd == SIOCSHWTSTAMP) - return dpaa2_eth_ts_ioctl(dev, rq, cmd); - -- if (dpaa2_eth_is_type_phy(priv)) -- return phylink_mii_ioctl(priv->mac->phylink, rq, cmd); -+ mutex_lock(&priv->mac_lock); -+ -+ if (dpaa2_eth_is_type_phy(priv)) { -+ err = phylink_mii_ioctl(priv->mac->phylink, rq, cmd); -+ mutex_unlock(&priv->mac_lock); -+ return err; -+ } -+ -+ mutex_unlock(&priv->mac_lock); - - return -EOPNOTSUPP; - } -@@ -4454,7 +4474,9 @@ static int dpaa2_eth_connect_mac(struct - goto err_close_mac; - } - -+ mutex_lock(&priv->mac_lock); - priv->mac = mac; -+ mutex_unlock(&priv->mac_lock); - - return 0; - -@@ -4467,9 +4489,12 @@ err_free_mac: - - static void dpaa2_eth_disconnect_mac(struct dpaa2_eth_priv *priv) - { -- struct dpaa2_mac *mac = priv->mac; -+ struct dpaa2_mac *mac; - -+ mutex_lock(&priv->mac_lock); -+ mac = priv->mac; - priv->mac = NULL; -+ mutex_unlock(&priv->mac_lock); - - if (!mac) - return; -@@ -4488,6 +4513,7 @@ static irqreturn_t dpni_irq0_handler_thr - struct fsl_mc_device *dpni_dev = to_fsl_mc_device(dev); - struct net_device *net_dev = dev_get_drvdata(dev); - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); -+ bool had_mac; - int err; - - err = dpni_get_irq_status(dpni_dev->mc_io, 0, dpni_dev->mc_handle, -@@ -4505,7 +4531,12 @@ static irqreturn_t dpni_irq0_handler_thr - dpaa2_eth_update_tx_fqids(priv); - - rtnl_lock(); -- if (dpaa2_eth_has_mac(priv)) -+ /* We can avoid locking because the "endpoint changed" IRQ -+ * handler is the only one who changes priv->mac at runtime, -+ * so we are not racing with anyone. -+ */ -+ had_mac = !!priv->mac; -+ if (had_mac) - dpaa2_eth_disconnect_mac(priv); - else - dpaa2_eth_connect_mac(priv); -@@ -4606,6 +4637,8 @@ static int dpaa2_eth_probe(struct fsl_mc - priv = netdev_priv(net_dev); - priv->net_dev = net_dev; - -+ mutex_init(&priv->mac_lock); -+ - priv->iommu_domain = iommu_get_domain_for_dev(dev); - - priv->tx_tstamp_type = HWTSTAMP_TX_OFF; ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -@@ -580,6 +580,8 @@ struct dpaa2_eth_priv { - #endif - - struct dpaa2_mac *mac; -+ /* Serializes changes to priv->mac */ -+ struct mutex mac_lock; - struct workqueue_struct *dpaa2_ptp_wq; - struct work_struct tx_onestep_tstamp; - struct sk_buff_head tx_skbs; -@@ -733,11 +735,15 @@ static inline unsigned int dpaa2_eth_rx_ - - static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv) - { -+ lockdep_assert_held(&priv->mac_lock); -+ - return dpaa2_mac_is_type_phy(priv->mac); - } - - static inline bool dpaa2_eth_has_mac(struct dpaa2_eth_priv *priv) - { -+ lockdep_assert_held(&priv->mac_lock); -+ - return priv->mac ? true : false; - } - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c -@@ -86,11 +86,16 @@ static void dpaa2_eth_get_drvinfo(struct - static int dpaa2_eth_nway_reset(struct net_device *net_dev) - { - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); -+ int err = -EOPNOTSUPP; -+ -+ mutex_lock(&priv->mac_lock); - - if (dpaa2_eth_is_type_phy(priv)) -- return phylink_ethtool_nway_reset(priv->mac->phylink); -+ err = phylink_ethtool_nway_reset(priv->mac->phylink); -+ -+ mutex_unlock(&priv->mac_lock); - -- return -EOPNOTSUPP; -+ return err; - } - - static int -@@ -98,10 +103,18 @@ dpaa2_eth_get_link_ksettings(struct net_ - struct ethtool_link_ksettings *link_settings) - { - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); -+ int err; - -- if (dpaa2_eth_is_type_phy(priv)) -- return phylink_ethtool_ksettings_get(priv->mac->phylink, -- link_settings); -+ mutex_lock(&priv->mac_lock); -+ -+ if (dpaa2_eth_is_type_phy(priv)) { -+ err = phylink_ethtool_ksettings_get(priv->mac->phylink, -+ link_settings); -+ mutex_unlock(&priv->mac_lock); -+ return err; -+ } -+ -+ mutex_unlock(&priv->mac_lock); - - link_settings->base.autoneg = AUTONEG_DISABLE; - if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX)) -@@ -116,11 +129,17 @@ dpaa2_eth_set_link_ksettings(struct net_ - const struct ethtool_link_ksettings *link_settings) - { - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); -+ int err = -EOPNOTSUPP; - -- if (!dpaa2_eth_is_type_phy(priv)) -- return -EOPNOTSUPP; -+ mutex_lock(&priv->mac_lock); -+ -+ if (dpaa2_eth_is_type_phy(priv)) -+ err = phylink_ethtool_ksettings_set(priv->mac->phylink, -+ link_settings); - -- return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings); -+ mutex_unlock(&priv->mac_lock); -+ -+ return err; - } - - static void dpaa2_eth_get_pauseparam(struct net_device *net_dev, -@@ -129,11 +148,16 @@ static void dpaa2_eth_get_pauseparam(str - struct dpaa2_eth_priv *priv = netdev_priv(net_dev); - u64 link_options = priv->link_state.options; - -+ mutex_lock(&priv->mac_lock); -+ - if (dpaa2_eth_is_type_phy(priv)) { - phylink_ethtool_get_pauseparam(priv->mac->phylink, pause); -+ mutex_unlock(&priv->mac_lock); - return; - } - -+ mutex_unlock(&priv->mac_lock); -+ - pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options); - pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options); - pause->autoneg = AUTONEG_DISABLE; -@@ -152,9 +176,17 @@ static int dpaa2_eth_set_pauseparam(stru - return -EOPNOTSUPP; - } - -- if (dpaa2_eth_is_type_phy(priv)) -- return phylink_ethtool_set_pauseparam(priv->mac->phylink, -- pause); -+ mutex_lock(&priv->mac_lock); -+ -+ if (dpaa2_eth_is_type_phy(priv)) { -+ err = phylink_ethtool_set_pauseparam(priv->mac->phylink, -+ pause); -+ mutex_unlock(&priv->mac_lock); -+ return err; -+ } -+ -+ mutex_unlock(&priv->mac_lock); -+ - if (pause->autoneg) - return -EOPNOTSUPP; - -@@ -307,8 +339,12 @@ static void dpaa2_eth_get_ethtool_stats( - } - *(data + i++) = buf_cnt; - -+ mutex_lock(&priv->mac_lock); -+ - if (dpaa2_eth_has_mac(priv)) - dpaa2_mac_get_ethtool_stats(priv->mac, data + i); -+ -+ mutex_unlock(&priv->mac_lock); - } - - static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask, diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0011-net-dpaa2-switch-serialize-changes-to-priv-mac-with.patch b/target/linux/armsr/patches-6.1/701-v6.2-0011-net-dpaa2-switch-serialize-changes-to-priv-mac-with.patch deleted file mode 100644 index 9d6f5c52dc..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0011-net-dpaa2-switch-serialize-changes-to-priv-mac-with.patch +++ /dev/null @@ -1,203 +0,0 @@ -From 80d12452a5f160c39d63efc1be07df36f9d07133 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:20 +0200 -Subject: [PATCH 13/14] net: dpaa2-switch: serialize changes to priv->mac with - a mutex - -The dpaa2-switch driver uses a DPMAC in the same way as the dpaa2-eth -driver, so we need to duplicate the locking solution established by the -previous change to the switch driver as well. - -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> ---- - .../freescale/dpaa2/dpaa2-switch-ethtool.c | 32 +++++++++++++++---- - .../ethernet/freescale/dpaa2/dpaa2-switch.c | 31 ++++++++++++++++-- - .../ethernet/freescale/dpaa2/dpaa2-switch.h | 2 ++ - 3 files changed, 55 insertions(+), 10 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c -@@ -60,11 +60,18 @@ dpaa2_switch_get_link_ksettings(struct n - { - struct ethsw_port_priv *port_priv = netdev_priv(netdev); - struct dpsw_link_state state = {0}; -- int err = 0; -+ int err; - -- if (dpaa2_switch_port_is_type_phy(port_priv)) -- return phylink_ethtool_ksettings_get(port_priv->mac->phylink, -- link_ksettings); -+ mutex_lock(&port_priv->mac_lock); -+ -+ if (dpaa2_switch_port_is_type_phy(port_priv)) { -+ err = phylink_ethtool_ksettings_get(port_priv->mac->phylink, -+ link_ksettings); -+ mutex_unlock(&port_priv->mac_lock); -+ return err; -+ } -+ -+ mutex_unlock(&port_priv->mac_lock); - - err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0, - port_priv->ethsw_data->dpsw_handle, -@@ -99,9 +106,16 @@ dpaa2_switch_set_link_ksettings(struct n - bool if_running; - int err = 0, ret; - -- if (dpaa2_switch_port_is_type_phy(port_priv)) -- return phylink_ethtool_ksettings_set(port_priv->mac->phylink, -- link_ksettings); -+ mutex_lock(&port_priv->mac_lock); -+ -+ if (dpaa2_switch_port_is_type_phy(port_priv)) { -+ err = phylink_ethtool_ksettings_set(port_priv->mac->phylink, -+ link_ksettings); -+ mutex_unlock(&port_priv->mac_lock); -+ return err; -+ } -+ -+ mutex_unlock(&port_priv->mac_lock); - - /* Interface needs to be down to change link settings */ - if_running = netif_running(netdev); -@@ -189,8 +203,12 @@ static void dpaa2_switch_ethtool_get_sta - dpaa2_switch_ethtool_counters[i].name, err); - } - -+ mutex_lock(&port_priv->mac_lock); -+ - if (dpaa2_switch_port_has_mac(port_priv)) - dpaa2_mac_get_ethtool_stats(port_priv->mac, data + i); -+ -+ mutex_unlock(&port_priv->mac_lock); - } - - const struct ethtool_ops dpaa2_switch_port_ethtool_ops = { ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -@@ -603,8 +603,11 @@ static int dpaa2_switch_port_link_state_ - - /* When we manage the MAC/PHY using phylink there is no need - * to manually update the netif_carrier. -+ * We can avoid locking because we are called from the "link changed" -+ * IRQ handler, which is the same as the "endpoint changed" IRQ handler -+ * (the writer to port_priv->mac), so we cannot race with it. - */ -- if (dpaa2_switch_port_is_type_phy(port_priv)) -+ if (dpaa2_mac_is_type_phy(port_priv->mac)) - return 0; - - /* Interrupts are received even though no one issued an 'ifconfig up' -@@ -684,6 +687,8 @@ static int dpaa2_switch_port_open(struct - struct ethsw_core *ethsw = port_priv->ethsw_data; - int err; - -+ mutex_lock(&port_priv->mac_lock); -+ - if (!dpaa2_switch_port_is_type_phy(port_priv)) { - /* Explicitly set carrier off, otherwise - * netif_carrier_ok() will return true and cause 'ip link show' -@@ -697,6 +702,7 @@ static int dpaa2_switch_port_open(struct - port_priv->ethsw_data->dpsw_handle, - port_priv->idx); - if (err) { -+ mutex_unlock(&port_priv->mac_lock); - netdev_err(netdev, "dpsw_if_enable err %d\n", err); - return err; - } -@@ -706,6 +712,8 @@ static int dpaa2_switch_port_open(struct - if (dpaa2_switch_port_is_type_phy(port_priv)) - dpaa2_mac_start(port_priv->mac); - -+ mutex_unlock(&port_priv->mac_lock); -+ - return 0; - } - -@@ -715,6 +723,8 @@ static int dpaa2_switch_port_stop(struct - struct ethsw_core *ethsw = port_priv->ethsw_data; - int err; - -+ mutex_lock(&port_priv->mac_lock); -+ - if (dpaa2_switch_port_is_type_phy(port_priv)) { - dpaa2_mac_stop(port_priv->mac); - } else { -@@ -722,6 +732,8 @@ static int dpaa2_switch_port_stop(struct - netif_carrier_off(netdev); - } - -+ mutex_unlock(&port_priv->mac_lock); -+ - err = dpsw_if_disable(port_priv->ethsw_data->mc_io, 0, - port_priv->ethsw_data->dpsw_handle, - port_priv->idx); -@@ -1461,7 +1473,9 @@ static int dpaa2_switch_port_connect_mac - } - } - -+ mutex_lock(&port_priv->mac_lock); - port_priv->mac = mac; -+ mutex_unlock(&port_priv->mac_lock); - - return 0; - -@@ -1474,9 +1488,12 @@ err_free_mac: - - static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv) - { -- struct dpaa2_mac *mac = port_priv->mac; -+ struct dpaa2_mac *mac; - -+ mutex_lock(&port_priv->mac_lock); -+ mac = port_priv->mac; - port_priv->mac = NULL; -+ mutex_unlock(&port_priv->mac_lock); - - if (!mac) - return; -@@ -1495,6 +1512,7 @@ static irqreturn_t dpaa2_switch_irq0_han - struct ethsw_port_priv *port_priv; - u32 status = ~0; - int err, if_id; -+ bool had_mac; - - err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle, - DPSW_IRQ_INDEX_IF, &status); -@@ -1513,7 +1531,12 @@ static irqreturn_t dpaa2_switch_irq0_han - - if (status & DPSW_IRQ_EVENT_ENDPOINT_CHANGED) { - rtnl_lock(); -- if (dpaa2_switch_port_has_mac(port_priv)) -+ /* We can avoid locking because the "endpoint changed" IRQ -+ * handler is the only one who changes priv->mac at runtime, -+ * so we are not racing with anyone. -+ */ -+ had_mac = !!port_priv->mac; -+ if (had_mac) - dpaa2_switch_port_disconnect_mac(port_priv); - else - dpaa2_switch_port_connect_mac(port_priv); -@@ -3249,6 +3272,8 @@ static int dpaa2_switch_probe_port(struc - port_priv->netdev = port_netdev; - port_priv->ethsw_data = ethsw; - -+ mutex_init(&port_priv->mac_lock); -+ - port_priv->idx = port_idx; - port_priv->stp_state = BR_STATE_FORWARDING; - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h -@@ -161,6 +161,8 @@ struct ethsw_port_priv { - - struct dpaa2_switch_filter_block *filter_block; - struct dpaa2_mac *mac; -+ /* Protects against changes to port_priv->mac */ -+ struct mutex mac_lock; - }; - - /* Switch data */ diff --git a/target/linux/armsr/patches-6.1/701-v6.2-0012-net-dpaa2-mac-move-rtnl_lock-only-around-phylink.patch b/target/linux/armsr/patches-6.1/701-v6.2-0012-net-dpaa2-mac-move-rtnl_lock-only-around-phylink.patch deleted file mode 100644 index 521c9d4a54..0000000000 --- a/target/linux/armsr/patches-6.1/701-v6.2-0012-net-dpaa2-mac-move-rtnl_lock-only-around-phylink.patch +++ /dev/null @@ -1,113 +0,0 @@ -From 4ea2faf5bb13d9ba9f07e996d495c4cbe34a4236 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Tue, 29 Nov 2022 16:12:21 +0200 -Subject: [PATCH 14/14] net: dpaa2-mac: move rtnl_lock() only around - phylink_{,dis}connect_phy() - -After the introduction of a private mac_lock that serializes access to -priv->mac (and port_priv->mac in the switch), the only remaining purpose -of rtnl_lock() is to satisfy the locking requirements of -phylink_fwnode_phy_connect() and phylink_disconnect_phy(). - -But the functions these live in, dpaa2_mac_connect() and -dpaa2_mac_disconnect(), have contradictory locking requirements. -While phylink_fwnode_phy_connect() wants rtnl_lock() to be held, -phylink_create() wants it to not be held. - -Move the rtnl_lock() from top-level (in the dpaa2-eth and dpaa2-switch -drivers) to only surround the phylink calls that require it, in the -dpaa2-mac library code. - -This is possible because dpaa2_mac_connect() and dpaa2_mac_disconnect() -run unlocked, and there isn't any danger of an AB/BA deadlock between -the rtnl_mutex and other private locks. - -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> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 5 +++++ - drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 4 ---- - 3 files changed, 5 insertions(+), 8 deletions(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -4530,7 +4530,6 @@ static irqreturn_t dpni_irq0_handler_thr - dpaa2_eth_set_mac_addr(netdev_priv(net_dev)); - dpaa2_eth_update_tx_fqids(priv); - -- rtnl_lock(); - /* We can avoid locking because the "endpoint changed" IRQ - * handler is the only one who changes priv->mac at runtime, - * so we are not racing with anyone. -@@ -4540,7 +4539,6 @@ static irqreturn_t dpni_irq0_handler_thr - dpaa2_eth_disconnect_mac(priv); - else - dpaa2_eth_connect_mac(priv); -- rtnl_unlock(); - } - - return IRQ_HANDLED; -@@ -4859,9 +4857,7 @@ 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); ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c -@@ -428,7 +428,9 @@ int dpaa2_mac_connect(struct dpaa2_mac * - } - mac->phylink = phylink; - -+ rtnl_lock(); - err = phylink_fwnode_phy_connect(mac->phylink, dpmac_node, 0); -+ rtnl_unlock(); - if (err) { - netdev_err(net_dev, "phylink_fwnode_phy_connect() = %d\n", err); - goto err_phylink_destroy; -@@ -446,7 +448,10 @@ err_pcs_destroy: - - void dpaa2_mac_disconnect(struct dpaa2_mac *mac) - { -+ rtnl_lock(); - phylink_disconnect_phy(mac->phylink); -+ rtnl_unlock(); -+ - phylink_destroy(mac->phylink); - dpaa2_pcs_destroy(mac); - of_phy_put(mac->serdes_phy); ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c -@@ -1530,7 +1530,6 @@ static irqreturn_t dpaa2_switch_irq0_han - } - - if (status & DPSW_IRQ_EVENT_ENDPOINT_CHANGED) { -- rtnl_lock(); - /* We can avoid locking because the "endpoint changed" IRQ - * handler is the only one who changes priv->mac at runtime, - * so we are not racing with anyone. -@@ -1540,7 +1539,6 @@ static irqreturn_t dpaa2_switch_irq0_han - dpaa2_switch_port_disconnect_mac(port_priv); - else - dpaa2_switch_port_connect_mac(port_priv); -- rtnl_unlock(); - } - - out: -@@ -2951,9 +2949,7 @@ static void dpaa2_switch_remove_port(str - { - struct ethsw_port_priv *port_priv = ethsw->ports[port_idx]; - -- rtnl_lock(); - dpaa2_switch_port_disconnect_mac(port_priv); -- rtnl_unlock(); - free_netdev(port_priv->netdev); - ethsw->ports[port_idx] = NULL; - } diff --git a/target/linux/armsr/patches-6.1/221-armsr-disable_gc_sections_armv7.patch b/target/linux/armsr/patches-6.6/221-armsr-disable_gc_sections_armv7.patch index 7c0b4b1920..c9dbdf2521 100644 --- a/target/linux/armsr/patches-6.1/221-armsr-disable_gc_sections_armv7.patch +++ b/target/linux/armsr/patches-6.6/221-armsr-disable_gc_sections_armv7.patch @@ -13,8 +13,8 @@ Signed-off-by: Mathew McBride <matt@traverse.com.au> --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig -@@ -124,7 +124,6 @@ config ARM - select HAVE_VIRT_CPU_ACCOUNTING_GEN +@@ -128,7 +128,6 @@ config ARM + select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU select IRQ_FORCED_THREADING select LOCK_MM_AND_FIND_VMA - select HAVE_LD_DEAD_CODE_DATA_ELIMINATION |