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Justin Tee
1d0f9fea5d
When mapped to a target with multiple virtual ports, a link bounce sometimes results in unsuccessful rediscovery of all of the target's virtual ports. This is because a succession of repeat RSCNs for the virtual target ports leaves ndlps in the REG_LOGIN state with the NLP_REG_LOGIN_SEND flag set. With NLP_REG_LOGIN_SEND set, during the next PLOGI, the driver will UNREG_RPI. When UNREG_RPI is processed, the driver can be in the middle of PRLI_ISSUE or MAPPED state resulting in an illegal state transition by the discovery engine and stalling. Fix by calling the discovery state machine with DEVICE_RECOVERY event during RSCN processing. This will set the NLP_IGNR_REG_CMPL bit and prevent the old REG_LOGIN state from advancing. Then for the new PLOGI issue, add the check for the NLP_IGNR_REG_CMPL bit to delay issuing the new PLOGI until the queued REG_LOGIN and UNREG_LOGIN have been processed. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230301231626.9621-6-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.