Re: MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32)
On Fri, Feb 16, 2007 at 05:48:24PM -0500, Lennart Sorensen wrote: > Well so far it really looks like enabling OOSTORE on the Geode > SC1200/GX1 really does make a difference. A bit of searching seems to > indicate the person that originally submitted the patch that enabled > load/store reordering on the MediaGX/Geode though it might need OOSTORE, > but was convinced by others it didn't. Looks like it really does need > it. The failure that occoured before within a few seconds of starting a > large transfer, no longer fails and all I did was enable > CONFIG_X86_OOSTORE, and recompile pcnet32.ko and load the new module on > the running system. Moving back to the pcnet32.ko built without OOSTORE > enabled hits the failure again within seconds, until ifconfig eth1 > down/up reinitialized it's descriptor ring, after which it survices > another bit of transfer and then fails again. Well forcing load/store serialize on the CPU doesn't help, disalbing memory bypass doesn't help. Enabling the X86_OOSTORE does help. What a stupid CPU design. So far nothing has managed to fix the __memcpy_toio in the jsm driver getting data out of order when sending on an exar pci uart chip. Only calling memcpy with one byte at a time seems to work there. Works fine on every other cpu of course. What else am I going to discover is wrong with this CPU. -- Len Sorensen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32)
On Fri, Feb 16, 2007 at 05:27:28PM -0500, Lennart Sorensen wrote: > On Fri, Feb 16, 2007 at 04:01:57PM -0500, Lennart Sorensen wrote: > > It seems whenever it gets stuck, it is always the same descripter it is > > stuck on. Here is my current log: > > > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > > eth1: pcnet32_poll: pcnet32_rx() got 0 packets > > eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. > > eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. > > eth1: base: 0x04c51812 status: 8000 next->status: 0340 > >
MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32)
On Fri, Feb 16, 2007 at 05:27:28PM -0500, Lennart Sorensen wrote: On Fri, Feb 16, 2007 at 04:01:57PM -0500, Lennart Sorensen wrote: It seems whenever it gets stuck, it is always the same descripter it is stuck on. Here is my current log: eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0433, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000 next-status: 0340 eth1: pcnet32_poll: pcnet32_rx() got 0 packets eth1: interrupt csr0=0x4f3 new csr=0x33, csr3=0x. eth1: exiting interrupt, csr0=0x0033, csr3=0x5f00. eth1: base: 0x04c51812 status: 8000
Re: MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32)
On Fri, Feb 16, 2007 at 05:48:24PM -0500, Lennart Sorensen wrote: Well so far it really looks like enabling OOSTORE on the Geode SC1200/GX1 really does make a difference. A bit of searching seems to indicate the person that originally submitted the patch that enabled load/store reordering on the MediaGX/Geode though it might need OOSTORE, but was convinced by others it didn't. Looks like it really does need it. The failure that occoured before within a few seconds of starting a large transfer, no longer fails and all I did was enable CONFIG_X86_OOSTORE, and recompile pcnet32.ko and load the new module on the running system. Moving back to the pcnet32.ko built without OOSTORE enabled hits the failure again within seconds, until ifconfig eth1 down/up reinitialized it's descriptor ring, after which it survices another bit of transfer and then fails again. Well forcing load/store serialize on the CPU doesn't help, disalbing memory bypass doesn't help. Enabling the X86_OOSTORE does help. What a stupid CPU design. So far nothing has managed to fix the __memcpy_toio in the jsm driver getting data out of order when sending on an exar pci uart chip. Only calling memcpy with one byte at a time seems to work there. Works fine on every other cpu of course. What else am I going to discover is wrong with this CPU. -- Len Sorensen - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
