Re: [PATCH v5 00/21] ibmvfc: initial MQ development/enablement

From: Martin K. Petersen
Date: Thu Jan 21 2021 - 00:54:11 EST

On Thu, 14 Jan 2021 14:31:27 -0600, Tyrel Datwyler wrote:

> Recent updates in pHyp Firmware and VIOS releases provide new infrastructure
> towards enabling Subordinate Command Response Queues (Sub-CRQs) such that each
> Sub-CRQ is a channel backed by an actual hardware queue in the FC stack on the
> partner VIOS. Sub-CRQs are registered with the firmware via hypercalls and then
> negotiated with the VIOS via new Management Datagrams (MADs) for channel setup.
> This initial implementation adds the necessary Sub-CRQ framework and implements
> the new MADs for negotiating and assigning a set of Sub-CRQs to associated VIOS
> HW backed channels.
> [...]

Applied to 5.12/scsi-queue, thanks!

[01/21] ibmvfc: add vhost fields and defaults for MQ enablement
[02/21] ibmvfc: move event pool init/free routines
[03/21] ibmvfc: init/free event pool during queue allocation/free
[04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool
[05/21] ibmvfc: define hcall wrapper for registering a Sub-CRQ
[06/21] ibmvfc: add Subordinate CRQ definitions
[07/21] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels
[08/21] ibmvfc: add Sub-CRQ IRQ enable/disable routine
[09/21] ibmvfc: add handlers to drain and complete Sub-CRQ responses
[10/21] ibmvfc: define Sub-CRQ interrupt handler routine
[11/21] ibmvfc: map/request irq and register Sub-CRQ interrupt handler
[12/21] ibmvfc: implement channel enquiry and setup commands
[13/21] ibmvfc: advertise client support for using hardware channels
[14/21] ibmvfc: set and track hw queue in ibmvfc_event struct
[15/21] ibmvfc: send commands down HW Sub-CRQ when channelized
[16/21] ibmvfc: register Sub-CRQ handles with VIOS during channel setup
[17/21] ibmvfc: add cancel mad initialization helper
[18/21] ibmvfc: send Cancel MAD down each hw scsi channel
[19/21] ibmvfc: purge scsi channels after transport loss/reset
[20/21] ibmvfc: enable MQ and set reasonable defaults
[21/21] ibmvfc: provide modules parameters for MQ settings

Martin K. Petersen Oracle Linux Engineering