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Salil Mehta says: ==================== net: hns3: Refactors "reset" handling code in HCLGE layer of HNS3 driver 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 ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.