Hi Andrew, > -----Original Message----- > From: Andrew Lunn [mailto:andrew@xxxxxxx] > Sent: Friday, December 01, 2017 1:44 PM > To: Salil Mehta <salil.mehta@xxxxxxxxxx> > Cc: davem@xxxxxxxxxxxxx; Zhuangyuzeng (Yisen) > <yisen.zhuang@xxxxxxxxxx>; lipeng (Y) <lipeng321@xxxxxxxxxx>; > mehta.salil.lnk@xxxxxxxxx; netdev@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; linux-rdma@xxxxxxxxxxxxxxx; Linuxarm > <linuxarm@xxxxxxxxxx> > Subject: Re: [PATCH net-next] net: hns3: Refactors "reset" handling > code in HCLGE layer of HNS3 driver > > On Fri, Dec 01, 2017 at 03:37:44AM +0000, Salil Mehta wrote: > > This patch refactors the code of the reset feature in HCLGE layer > > of HNS3 PF driver. Prime motivation to do this change is: > > 1. To reduce the time for which common miscellaneous Vector 0 > > interrupt is disabled because of the reset. > > 2. Simplification of reset request submission and pending reset > > logic. > > 3. Simplification of the common miscellaneous interrupt handler > > routine(for Vector 0) used to handle reset and other sources > > of Vector 0 interrupt. > > > > To achieve above below few things have been done: > > 1. Interrupt is disabled while common miscellaneous interrupt > > handler is entered and re-enabled before it is exit. This > > reduces the interrupt handling latency as compared to older > > interrupt handling scheme where interrupt was being disabled > > in interrupt handler context and re-enabled in task context > > some time later. > > 2. Introduces new reset service task for honoring software reset > > requests like from network stack related to timeout and serving > > the pending reset request(to reset the driver and associated > > clients). > > 3. Made Miscellaneous interrupt handler more generic to handle > > all sources including reset interrupt source. > > Hi Salil > > This is a rather large patch. Can you break it up? It seems like you > should be able to break it up into at least three parts, maybe more. > > You are aiming to have small patches which are obviously correct. It > is much easier to review than one big patch which is not obvious at > all. Ok. No issues. I will try to fix this in V2 version. > > Andrew -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
