Christian Marangi 8cce00bc9d qca-ssdk: fix unsupported scenario with PORT1 not declared in switch bmp ... Commit 947b44d9ae ("ipq807x: fix wrong define for LAN and WAN ess mask") started fixing wrong switch_lan_bmp that defined lan there weren't actually present. This displayed a fragility in the malibu phy init code in qca-ssdk. Add patch to fix this. Quoting the patch detailed description: I'm very confused by this and to me it's not clear the real usage of this logic. From what I can see the usage of this is EXTREMELY FRAGILE and results in dangerous results if the OEM (or anyone that by chance try to implement things in a logical manner) deviates from the default values from the "magical template". To be in more details. With QSDK 12.4, some tweaks were done to improve autoneg and now on every call of port status, the phydev is tried to add. This resulted in the call and log spam of an error with ports that are actually not present on the system with qsdk reporting phydev is NULL. This itself is not an error and printing the error is correct. What is actually an error from ages is setting generic bitmap reporting presence of port that are actually not present. This is very common on OEM where the switch_lan_bmp is always a variant of 0x1e (that on bitmap results in PORT1 PORT2 PORT3 PORT4 present) or 0x3e (PORT1 PORT2 PORT3 PORT4 PORT5). Reality is that many device are used as AP with one LAN port or one WAN port. (or even exotic configuration with PORT1 not present and PORT2 PORT3 PORT4 present (Xiaomi 3600) With this finding one can say... ok nice, then lets update the DT and set the correct bitmap... Again world is a bad place and reality is that this cause wonderful regression in some case of by extreme luck the first ever connected port working and the rest of the switch dead. The problem has been bisected to all the device that doesn't have the PORT1 declared in any of the bitmap. With this perfection in mind, on to the REAL problem. malibu_phy_hw_init FOR SOME REASON, set a global variable first_phy_addr to the first detected PHY addr that coincidentally is always PORT1. PORT1 addr is 0x0. The entire code in malibu_phy use this variable to derive the phy addrs in some function. Declaring a bitmap where the PORT1 is missing (or worse PORT4 the only one connected) result in first_phy_addr set to 1 or whatever phy addr is detected first setting wrong value all over the init stage. To fix this, just drop this variable and hardcode everything to assume the first phy adrr is ALWAYS 0 and remove calculation and use define for special case. With the following change normal switch traffic is restored and ports function is recovered. Fixes: #13945 Fixes: 947b44d9ae ("ipq807x: fix wrong define for LAN and WAN ess mask") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>		2023-11-11 23:39:32 +01:00
..
ath10k-ct	ath10k-ct: add patch fixing compilation error in debug	2023-11-03 04:10:03 +01:00
bcm27xx-gpu-fw	…
bcm63xx-cfe	…
bpf-headers	bpf-headers: Fix download URL with kernel 6.1	2023-11-06 23:20:14 +01:00
broadcom-wl	…
button-hotplug	…
cryptodev-linux	…
dtc/patches	…
gpio-button-hotplug	…
gpio-nct5104d	…
lantiq	ltq-vdsl-vr11-mei: fix compilation error with kernel 6.1	2023-08-27 19:26:53 +02:00
leds-ws2812b	kernel: leds-ws2812b: fix build with Linux >= 5.18	2023-07-08 15:10:12 +01:00
linux	packages: add needed packages for Mellanox Spectrum Switches	2023-10-31 21:12:15 +01:00
mac80211	mac80211: fix not set noscan option for wpa_supplicant	2023-11-09 15:58:34 +01:00
mt76	mt76: Add firmware package for MT7922	2023-10-29 22:39:16 +01:00
mt7621-qtn-rgmii	…
mwlwifi	mwlwifi: fix 6.1 Kernel support	2023-08-10 16:34:07 +02:00
nat46	…
qca-nss-dp	kernel: qca-nss-dp: port FDB roaming fix	2023-07-01 14:22:37 +02:00
qca-ssdk	qca-ssdk: fix unsupported scenario with PORT1 not declared in switch bmp	2023-11-11 23:39:32 +01:00
rtc-rv5c386a	…
rtl8812au-ct	rtl8812au-ct: Fix PKG_MIRROR_HASH	2023-10-02 13:01:35 +02:00
trelay	…
ubnt-ledbar	ubnt-ledbar: depend on mediatek and ramips subtargets	2023-05-24 00:56:54 +02:00
ubootenv-nvram	kernel: ubootenv-nvram: driver for RAM backed environments	2023-08-20 01:14:06 +02:00