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. -- 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
