> -----Original Message----- > From: David Miller [mailto:davem@xxxxxxxxxxxxx] > Sent: Tuesday, December 05, 2017 4:49 PM > To: Salil Mehta <salil.mehta@xxxxxxxxxx> > Cc: 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 V2 net-next 0/3] net: hns3: Refactors "reset" > handling code in HCLGE layer of HNS3 driver > > From: Salil Mehta <salil.mehta@xxxxxxxxxx> > Date: Mon, 4 Dec 2017 01:29:52 +0000 > > > 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. Simplification > > of the common miscellaneous interrupt handler routine(for > > Vector 0) used to handle reset and other sources of Vector > > 0 interrupt. > > 2. Separate the task for handling the reset > > 3. Simplification of reset request submission and pending reset > > logic. > > > > > > 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. Made Miscellaneous interrupt handler more > > generic to handle all sources including reset interrupt source. > > 2. New reset service task has been introduced to service the > > reset handling. > > 3. 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). > > > > > > Change Log: > > Patch V2: Addressed comment by Andrew Lunn > > Link: https://lkml.org/lkml/2017/12/1/366 > > Patch V1: Initial Submit > > Series applied, thank you. Thanks Dave. -- 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
