Nvme cancel lsfmm 2#11
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Add a module parameter that allows the user to enable a basic cancel command emulation, this could be useful for testing the host driver's cancel command implementation. It just reports that no abort has been executed, it will however do some basic sanity check on the command sent by the host and return an error if the fields are invalid. Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
This is setup for being able to manipluate the outstanding requests. Signed-off-by: Chris Leech <cleech@redhat.com>
Creates an delay attribute file on the controler in debugfs /sys/kernel/debug/nvmet/<subsystem>/ctrlN/delay Reading this file returns two numbers, a reqeust delay count and a delay time in ms. Each delayed request will decrement the delay count until it reaches 0. Writing to this file can set both the delay and count at once, or just the count to trigger more delays. # delay the next 5 request by 5 seconds each echo 5 5000 > delay # set the delay time to 3 seconds without starting a count echo 0 3000 > delay # delay to the next 5 requests by the current delay time echo 5 > delay Signed-off-by: Chris Leech <cleech@redhat.com>
Allow requests to be delayed for testing. Signed-off-by: Chris Leech <cleech@redhat.com>
Enable tracking of all outstanding requests in an XArray Signed-off-by: Chris Leech <cleech@redhat.com>
Requests are canceled if the have been delayed and cancel_delayed_work is successfull. replace emulate_cancel_commands modparam with the delay kconfig Signed-off-by: Chris Leech <cleech@redhat.com>
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Missing commits from nvme_timeouts_7.1_v4