[LEDE-DEV] issue with rt61-pci

[Eddi De Pieri]

Hi,

It seems that this issue is due to DMA. But... i can't find where is
the setup of dma for pci bus for bcm6358

Regards

On Sun, Sep 25, 2016 at 9:39 AM, Eddi De Pieri <eddi at depieri.net> wrote:
> Hi,
>
> I've just flashed an old device with onboard a rt2661 pci card.
>
>
> Lede-Trunk/Openwrt 15 and trunk:
> by using the wifi card(AP mode) dmesg show:
> [  257.472000] ieee80211 phy1: rt61pci_txdone: Warning - TX status
> report missed for entry 28
> [  257.480000] ieee80211 phy1: rt61pci_txdone: Warning - TX status
> report missed for entry 29
> [  257.488000] ieee80211 phy1: rt61pci_txdone: Warning - TX status
> report missed for entry 30
> [  257.496000] ieee80211 phy1: rt61pci_txdone: Warning - TX status
> report missed for entry 31
> [  257.504000] ieee80211 phy1: rt61pci_txdone: Warning - TX status
> report missed for entry 1
> (don't remember which distribution i used to get this log... but all
> suffer of the same issue)
>
> and after few seconds of usage the wifi card stop working and it need
> a reboot or rmmod rt61-pci/modprobe to make it work again for few
> seconds
>
> root at OpenWrt:/lib/firmware# lspci -v
> 00:01.0 Network controller: Ralink corp. RT2600 802.11 MIMO
>         Subsystem: Ralink corp. Device 2661
>         Flags: bus master, slow devsel, latency 64, IRQ 39
>         Memory at 30000000 (32-bit, non-prefetchable) [size=32K]
>         Memory at <unassigned> (32-bit, non-prefetchable) [size=2]
>         Memory at <unassigned> (32-bit, non-prefetchable) [size=2]
>         Memory at <unassigned> (32-bit, non-prefetchable) [size=2]
>         Memory at <unassigned> (32-bit, non-prefetchable) [size=2]
>         Memory at <unassigned> (32-bit, non-prefetchable) [size=2]
>         Expansion ROM at <unassigned> [disabled] [size=2]
>         Capabilities: [40] Power Management version 2
>         Kernel driver in use: rt61pci
> lspci: Unable to load libkmod resources: error -12
>
> root at OpenWrt:/proc/irq/39# cat /proc/interrupts
>            CPU0
>   0:          0      MIPS   0  smp_ipi0
>   1:          0      MIPS   1  smp_ipi1
>   7:    7906287      MIPS   7  timer
>   8:          0  bcm6345-periph-intc   0  bcm63xx_timer
>  10:         27  bcm6345-periph-intc   2  bcm63xx_uart
>  13:          1  bcm6345-periph-intc   5  ohci_hcd:usb2
>  14:          6  bcm6345-periph-intc   6  eth1
>  17:          0  bcm6345-periph-intc   9  phy_interrupt
>  18:          0  bcm6345-periph-intc  10  ehci_hcd:usb1
>  25:     168436  bcm6345-periph-intc  17  eth1
>  26:      96231  bcm6345-periph-intc  18  eth1
>  39:     492016  bcm6345-periph-intc  31  rt61pci
> ERR:          0
> root at OpenWrt:/proc/irq/39#
>
>
> it seems that other people even on desktop systems get same error and
> is not clear if it is solved on latest ubuntu as well there is already
> a ticket opened on openwrt: https://dev.openwrt.org/ticket/18228
>
> On Openwrt 12.09 work correctly.
>
> Have you any idea about what could have introduced this regression?
> I've seen that between 3.3.8 and later kernel we use DTS, perhaps is
> missing some definitions for pirelli a226m device or something else
> more cfg80211 related?
>
>  ATTITUDE ADJUSTMENT (12.09, r36088)
>
> root at OpenWrt:/# cat /proc/version
> Linux version 3.3.8 (blogic at Debian-60-squeeze-64-minimal) (gcc version
> 4.6.3 20120201 (prerelease) (Linaro GCC 4.6-2012.02) ) #1 Sat Mar 23
> 18:09:20 UTC 2013
>
> root at OpenWrt:/# cat /proc/interrupts
>            CPU0
>   2:          0      MIPS  cascade_ip2
>   7:     479612      MIPS  timer
>   8:          0  bcm63xx_ipic  bcm63xx_timer
>  10:      18149  bcm63xx_ipic  bcm63xx_uart
>  14:         19  bcm63xx_ipic  eth1
>  17:          0  bcm63xx_ipic  phy_interrupt
>  25:     247853  bcm63xx_ipic  eth1
>  26:     117400  bcm63xx_ipic  eth1
>  39:     552385  bcm63xx_ipic  0000:00:01.0
> ERR:          0
>
> root at OpenWrt:/# lspci -v
> 00:01.0 Network controller: Ralink corp. RT2600 802.11 MIMO
>         Subsystem: Ralink corp. Device 2661
>         Flags: bus master, slow devsel, latency 64, IRQ 39
>         Memory at 30000000 (32-bit, non-prefetchable) [size=32K]
>         Capabilities: [40] Power Management version 2
>         Kernel driver in use: rt61pci
>
> 01:1e.0 CardBus bridge: Broadcom Corporation Device 6358
>         Subsystem: Broadcom Corporation Device 6358
>         Flags: bus master, slow devsel, latency 0, IRQ 39
>         Bus: primary=01, secondary=02, subordinate=05, sec-latency=176
>         Memory window 0: 00000000-00000fff
>         Memory window 1: 00000001-00000fff
>         I/O window 0: 00000000-00000003
>         I/O window 1: 00000000-00000003
>
> Regards
> Eddi De Pieri