Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-16 Thread Jakub Kicinski
On Wed, 14 Oct 2020 14:06:32 +0800 Dylan Hung wrote: > The new HW arbitration feature on Aspeed ast2600 will cause MAC TX to > hang when handling scatter-gather DMA. Disable the problematic feature > by setting MAC register 0x58 bit28 and bit27. > > Signed-off-by: Dylan Hung Applied, thank

Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Joel Stanley
On Thu, 15 Oct 2020 at 01:49, Dylan Hung wrote: > > > I was encountering this issue when I was running the iperf TX test. The > > symptom is the TX descriptors are consumed, but no complete packet is sent > > out. > > > > What parameters are you using for iperf? I did a lot of testing with > >

Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Joel Stanley
On Wed, 14 Oct 2020 at 13:32, Dylan Hung wrote: > > > The new HW arbitration feature on Aspeed ast2600 will cause MAC TX to > > > hang when handling scatter-gather DMA. Disable the problematic > > > feature by setting MAC register 0x58 bit28 and bit27. > > > > Hi Dylan, > > > > What are the

RE: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Dylan Hung
nBMC Maillist > ; BMC-SW > Subject: Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue > > On Wed, 14 Oct 2020 at 13:32, Dylan Hung > wrote: > > > > The new HW arbitration feature on Aspeed ast2600 will cause MAC TX > > > > to hang when handli

Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Joel Stanley
On Wed, 14 Oct 2020 at 06:07, Dylan Hung wrote: > > The new HW arbitration feature on Aspeed ast2600 will cause MAC TX to > hang when handling scatter-gather DMA. Disable the problematic feature > by setting MAC register 0x58 bit28 and bit27. Hi Dylan, What are the symptoms of this issue? We

RE: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Dylan Hung
speed ; OpenBMC Maillist > ; BMC-SW > Subject: Re: [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue > > On Wed, 14 Oct 2020 at 06:07, Dylan Hung > wrote: > > > > The new HW arbitration feature on Aspeed ast2600 will cause MAC TX to > > hang when handling

[PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue

2020-10-14 Thread Dylan Hung
The new HW arbitration feature on Aspeed ast2600 will cause MAC TX to hang when handling scatter-gather DMA. Disable the problematic feature by setting MAC register 0x58 bit28 and bit27. Signed-off-by: Dylan Hung --- drivers/net/ethernet/faraday/ftgmac100.c | 5 +