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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2023-03-25 10:33:06 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2023-03-25 10:33:06 +0100 |
commit | 21b89b06478c65122462813dcc3fe8bbb49cc53d (patch) | |
tree | f13bd5cff0d9b7401bd7a5dca2bb4d1c39f84dcc /target/linux/generic/backport-5.15 | |
parent | 67c28dde09b4ab370971b58e330842247cef0d99 (diff) | |
download | upstream-21b89b06478c65122462813dcc3fe8bbb49cc53d.tar.gz upstream-21b89b06478c65122462813dcc3fe8bbb49cc53d.tar.bz2 upstream-21b89b06478c65122462813dcc3fe8bbb49cc53d.zip |
kernel: backport dsa b53 patches
These patches have been merged upstream, so let's move them to backport.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/generic/backport-5.15')
2 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/743-v6.3-0005-net-dsa-b53-mmap-fix-device-tree-support.patch b/target/linux/generic/backport-5.15/743-v6.3-0005-net-dsa-b53-mmap-fix-device-tree-support.patch new file mode 100644 index 0000000000..8c277e6a3e --- /dev/null +++ b/target/linux/generic/backport-5.15/743-v6.3-0005-net-dsa-b53-mmap-fix-device-tree-support.patch @@ -0,0 +1,30 @@ +From 30796d0dcb6e41c6558a07950f2ce60c209da867 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com> +Date: Thu, 16 Mar 2023 18:28:07 +0100 +Subject: [PATCH] net: dsa: b53: mmap: fix device tree support +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +CPU port should also be enabled in order to get a working switch. + +Fixes: a5538a777b73 ("net: dsa: b53: mmap: Add device tree support") +Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20230316172807.460146-1-noltari@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/dsa/b53/b53_mmap.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/dsa/b53/b53_mmap.c ++++ b/drivers/net/dsa/b53/b53_mmap.c +@@ -263,7 +263,7 @@ static int b53_mmap_probe_of(struct plat + if (of_property_read_u32(of_port, "reg", ®)) + continue; + +- if (reg < B53_CPU_PORT) ++ if (reg < B53_N_PORTS) + pdata->enabled_ports |= BIT(reg); + } + diff --git a/target/linux/generic/backport-5.15/743-v6.3-0006-net-dsa-tag_brcm-legacy-fix-daisy-chained-switches.patch b/target/linux/generic/backport-5.15/743-v6.3-0006-net-dsa-tag_brcm-legacy-fix-daisy-chained-switches.patch new file mode 100644 index 0000000000..fdefa9ffb6 --- /dev/null +++ b/target/linux/generic/backport-5.15/743-v6.3-0006-net-dsa-tag_brcm-legacy-fix-daisy-chained-switches.patch @@ -0,0 +1,65 @@ +From 032a954061afd4b7426c3eb6bfd2952ef1e9a384 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com> +Date: Sun, 19 Mar 2023 10:55:40 +0100 +Subject: [PATCH] net: dsa: tag_brcm: legacy: fix daisy-chained switches +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When BCM63xx internal switches are connected to switches with a 4-byte +Broadcom tag, it does not identify the packet as VLAN tagged, so it adds one +based on its PVID (which is likely 0). +Right now, the packet is received by the BCM63xx internal switch and the 6-byte +tag is properly processed. The next step would to decode the corresponding +4-byte tag. However, the internal switch adds an invalid VLAN tag after the +6-byte tag and the 4-byte tag handling fails. +In order to fix this we need to remove the invalid VLAN tag after the 6-byte +tag before passing it to the 4-byte tag decoding. + +Fixes: 964dbf186eaa ("net: dsa: tag_brcm: add support for legacy tags") +Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> +Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20230319095540.239064-1-noltari@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + net/dsa/tag_brcm.c | 10 ++++++++-- + 1 file changed, 8 insertions(+), 2 deletions(-) + +--- a/net/dsa/tag_brcm.c ++++ b/net/dsa/tag_brcm.c +@@ -7,6 +7,7 @@ + + #include <linux/dsa/brcm.h> + #include <linux/etherdevice.h> ++#include <linux/if_vlan.h> + #include <linux/list.h> + #include <linux/slab.h> + +@@ -248,6 +249,7 @@ static struct sk_buff *brcm_leg_tag_xmit + static struct sk_buff *brcm_leg_tag_rcv(struct sk_buff *skb, + struct net_device *dev) + { ++ int len = BRCM_LEG_TAG_LEN; + int source_port; + u8 *brcm_tag; + +@@ -262,12 +264,16 @@ static struct sk_buff *brcm_leg_tag_rcv( + if (!skb->dev) + return NULL; + ++ /* VLAN tag is added by BCM63xx internal switch */ ++ if (netdev_uses_dsa(skb->dev)) ++ len += VLAN_HLEN; ++ + /* Remove Broadcom tag and update checksum */ +- skb_pull_rcsum(skb, BRCM_LEG_TAG_LEN); ++ skb_pull_rcsum(skb, len); + + dsa_default_offload_fwd_mark(skb); + +- dsa_strip_etype_header(skb, BRCM_LEG_TAG_LEN); ++ dsa_strip_etype_header(skb, len); + + return skb; + } |