mainlining shenanigans
3e49af9393
Default behavior for the driver, when aborting an I/O, is to terminate the I/O with the adapter. The adapter will initiate an ABTS to terminate the exchange on the link and mark the exchange is terminated so that no further use of the sgl or any traffic for the exchange is worked on. Completion on the Abort is then posted to the driver, which as the I/O is terminated can complete the I/O to the OS. This completion may occur prior to the ABTS handshake completing on the wire. The ABTS handshake can take a long time to complete with timeouts and retries reaching 60+ seconds. Note: if retries fail, LOGO occurs. Some devices want to ensure that the ABTS handshake fully completes (this device has fully ack'd it) before the I/O completion is posted back to the OS, where a failed I/O may be retried via a different path. To support this behavior, an option was added to the driver to change I/O completion from the Abort cmd completion to the Exchange termination (aka ABTS) completion. Link: https://lore.kernel.org/r/20210514195559.119853-10-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| 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 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.