> -----Original Message----- > From: netdev-owner@xxxxxxxxxxxxxxx [mailto:netdev-owner@xxxxxxxxxxxxxxx] > On Behalf Of Ben Hutchings > Sent: Saturday, April 14, 2012 1:03 > To: Huang, Xiong > Cc: davem@xxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; qca-linux-team; nic-devel; linux-pci > Subject: Re: [PATCH 12/37] atl1c: restore max-read-request-size in Device > Conrol Register > > On Fri, 2012-04-13 at 08:14 +0800, xiong wrote: > > in some platforms, we found the max-read-request-size in Device > > Control Register is set to 0 by (BIOS?) during bootup, this will cause > > the > > performance(throughput) very bad. > > Restore it to a min-value. > > register definition of REG_DEVICE_CTRL is refined as well. > [...] > > I'm guessing this memory-mapped register is an alias for the PCIe device control > register. I think you should be using pcie_set_readrq() to ensure that the final > setting conforms to the device's Max Payload Size and system policy. > You are right, I don't know there is a system function to do the right thing. I will revise it. Thanks Xiong ��.n��������+%������w��{.n�����{���"�)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
