Hi Ulf, > From: linux-wireless-owner@xxxxxxxxxxxxxxx [mailto:linux-wireless- > owner@xxxxxxxxxxxxxxx] On Behalf Of Ulf Hansson > Sent: Friday, April 22, 2016 7:48 PM > To: Amitkumar Karwar > Cc: linux-wireless@xxxxxxxxxxxxxxx; Nishant Sarmukadam; linux-mmc; Bing > Zhao; Cathy Luo; Bing Zhao; Xinming Hu > Subject: Re: [PATCH] mmc: add API for data write using scatter gather > DMA > > On 29 March 2016 at 14:57, Amitkumar Karwar <akarwar@xxxxxxxxxxx> wrote: > > From: Bing Zhao <bzhao@xxxxxxxxxxx> > > > > This patch adds new API for SDIO scatter gather. > > > > Existing mmc_io_rw_extended() API expects caller to pass single > > contiguous buffer. It will be split if it exceeds segment size, SG > > table is prepared and used it for reading/writing the data. > > > > Our intention for defining new API here is to facilitate caller to > > provide ready SG table(scattered buffer list). It will be useful for > > the drivers which intend to handle SDIO SG internally. > > > > Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx> > > Signed-off-by: Xinming Hu <huxm@xxxxxxxxxxx> > > Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx> > > --- > > So this has been posted and discussed earlier. In upcoming revisions, > please attach that history so people know when reviewing. > > Moreover, if you have been using this API to improve throughput, perhaps > you can provide us with some numbers as well!? > Thanks for your comments. We are working on the updated version to resolve them. We will include the changelist history and share the throughput improvement numbers. Regards, Amitkumar ��.n��������+%������w��{.n�����{���zW����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
