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| Filename | Latest commit message | Latest commit date |
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447f78c0e1
Currently there are two scenarioes which may cause PHY state of hardware (which is 0) is inconsistent with the state held in software: - Unplug SAS wire before get_phys_state when SAS controller reset, then the interrupts of phy down are ignored, phy state is 0 before reset, and it also gets 0 after reset, so phy down doesn't occur even if unplugged SAS wire; - For v3 hw later version, it will close bus when 2 bit ECC error occurs. So if unplug SAS wire at that time, interrupts of phy down also not occur. So at last it will cause host reset. It also get phy state 0 before and after reset, the same issue occurs. To solve it, use hisi_sas_phy_down() directly in rescan topology function. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.