[PATCH v3 2/2] nvme: initialize known effects to set ns_mgmt NCC and ns_attach NIC
Tokunori Ikegami
ikegami.t at gmail.com
Tue Apr 28 23:08:59 PDT 2026
On 2026/04/28 15:51, Keith Busch wrote:
> I suppose that's why the "known_effects" exists, but it'd be
> dissappointing if we really need this. The other opcodes in there
> existed before the Command Effects Log was created, so understandable
> that controllers may not implement it. But NS management/attach were
> introduced after the log, and there is also the AEN that the driver
> could rescan on receipt, so it's doubly bad if a controller
> implementation really needs this.
Just rechecked the specification again then the log page identifier:
commands supported and effects mentioned is optional for NVM express
revision 1.4 and earlier then for the older controller the changes not
bad I think.
By the way about the scan_work executions for the command effects log
and AEN I thought it is better to be handled only once but I do not have
an actual idea for the exclusive control.
Thank you.
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