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Linux kernel source tree
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Sandisk SN530 NVMe drives have broken MSIs. On systems without MSI-X support, all commands time out resulting in the following message: nvme nvme0: I/O tag 12 (100c) QID 0 timeout, completion polled These timeouts cause the boot to take an excessively-long time (over 20 minutes) while the initial command queue is flushed. Address this by adding a quirk for drives with buggy MSIs. The lspci output for this device (recorded on a system with MSI-X support) is: 02:00.0 Non-Volatile memory controller: Sandisk Corp Device 5008 (rev 01) (prog-if 02 [NVM Express]) Subsystem: Sandisk Corp Device 5008 Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0 Memory at f7e00000 (64-bit, non-prefetchable) [size=16K] Memory at f7e04000 (64-bit, non-prefetchable) [size=256] Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable- Count=1/32 Maskable- 64bit+ Capabilities: [b0] MSI-X: Enable+ Count=17 Masked- Capabilities: [c0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [150] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [1b8] Latency Tolerance Reporting Capabilities: [300] Secondary PCI Express Capabilities: [900] L1 PM Substates Kernel driver in use: nvme Kernel modules: nvme Cc: <stable@vger.kernel.org> Signed-off-by: Sean Anderson <sean.anderson@linux.dev> Reviewed-by: Christoph Hellwig <hch@lst.de> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 reStructuredText 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.