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From: hch@lst.de (Christoph Hellwig)
Subject: NVMe mega patchbomb for Linux 4.5-rc (resend)
Date: Sun, 22 Nov 2015 09:49:07 +0100
Message-ID: <20151122084907.GA11401@lst.de> (raw)
In-Reply-To: <CAPb2fE8TDoMwWBgJmB6cBm5aywEj4DHLKfhReZauKq3WBp3EPg@mail.gmail.com>

On Sun, Nov 22, 2015@08:14:38AM +0530, Madhu (Macaque Labs) wrote:
> With respect to the split of the driver into PCIe and PCIe agnostic parts,
> would you deem the split complete ? Or is there work still to be done.

I'd say about 95% done relative to my initial target.  There's some trivial
code moves that I have queued up after this series, and then we need to
look into a proper controller state machine.  But as always in Linux
we have moving targets, so things could change in the future.

> A good exercise would be to graft the upcoming SRIO driver and see
> how that coupling works.

SRIO as in Serial Rapid I/O?  How does that driver differ from the PCIe
one?  I'd expect it to still use MMIO access, the DMA API and a similar
queueing model as PCIe, in which case duplicating the whole PCIe driver
would seem wasteful.

Maybe you can post what you have currenly?  

> As part of our proposed lightstor standard (NVMe + extensions),

And the specs for your SRIO transport as well as your extension.  Did you
bring either of them up in the NVMe technical working group?

      parent reply index

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-21  7:19 Christoph Hellwig
2015-11-21  7:19 ` [PATCH 01/47] nvme: add missing unmaps in nvme_queue_rq Christoph Hellwig
2015-11-21  7:19 ` [PATCH 02/47] block: fix blk_abort_request for blk-mq drivers Christoph Hellwig
2015-11-21  7:19 ` [PATCH 03/47] block: defer timeouts to a workqueue Christoph Hellwig
2015-11-21  7:19 ` [PATCH 04/47] block: provide a new BLK_EH_QUIESCED timeout return value Christoph Hellwig
2015-11-21  7:19 ` [PATCH 05/47] block: remoe REQ_ATOM_COMPLETE wrappers Christoph Hellwig
2015-11-21  7:19 ` [PATCH 06/47] blk-mq: add a flags parameter to blk_mq_alloc_request Christoph Hellwig
2015-11-21  7:19 ` [PATCH 07/47] nvme: move struct nvme_iod to pci.c Christoph Hellwig
2015-11-21  7:19 ` [PATCH 08/47] nvme: split command submission helpers out of pci.c Christoph Hellwig
2015-11-21  7:19 ` [PATCH 09/47] nvme: add a vendor field to struct nvme_dev Christoph Hellwig
2015-11-21  7:19 ` [PATCH 10/47] nvme: use offset instead of a struct for registers Christoph Hellwig
2015-11-21  7:19 ` [PATCH 11/47] nvme: split a new struct nvme_ctrl out of struct nvme_dev Christoph Hellwig
2015-11-21  7:19 ` [PATCH 12/47] nvme: simplify nvme_setup_prps calling convention Christoph Hellwig
2015-11-21  7:19 ` [PATCH 13/47] nvme: refactor nvme_queue_rq Christoph Hellwig
2015-11-21  7:19 ` [PATCH 14/47] nvme: move nvme_error_status to common code Christoph Hellwig
2015-11-21  7:19 ` [PATCH 15/47] nvme: move nvme_setup_flush and nvme_setup_rw " Christoph Hellwig
2015-11-21  7:19 ` [PATCH 16/47] nvme: split __nvme_submit_sync_cmd Christoph Hellwig
2015-11-21  7:19 ` [PATCH 17/47] nvme: use the block layer for userspace passthrough metadata Christoph Hellwig
2015-11-21  7:19 ` [PATCH 18/47] nvme: move block_device_operations and ns/ctrl freeing to common code Christoph Hellwig
2015-11-21  7:19 ` [PATCH 19/47] nvme: add explicit quirk handling Christoph Hellwig
2015-11-21  7:20 ` [PATCH 20/47] nvme: add a common helper to read Identify Controller data Christoph Hellwig
2015-11-21  7:20 ` [PATCH 21/47] nvme: move the call to nvme_init_identify earlier Christoph Hellwig
2015-11-21  7:20 ` [PATCH 22/47] nvme: move namespace scanning to common code Christoph Hellwig
2015-11-21  7:20 ` [PATCH 23/47] nvme: move chardev and sysfs interface " Christoph Hellwig
2015-11-21  7:20 ` [PATCH 24/47] nvme: only add a controller to dev_list after it's been fully initialized Christoph Hellwig
2015-11-21  7:20 ` [PATCH 25/47] nvme: don't take the I/O queue q_lock in nvme_timeout Christoph Hellwig
2015-11-21  7:20 ` [PATCH 26/47] nvme: merge nvme_abort_req and nvme_timeout Christoph Hellwig
2015-11-21  7:20 ` [PATCH 27/47] nvme: do not restart the request timeout if we're resetting the controller Christoph Hellwig
2015-11-21  7:20 ` [PATCH 28/47] nvme: simplify resets Christoph Hellwig
2015-11-21  7:20 ` [PATCH 29/47] nvme: merge probe_work and reset_work Christoph Hellwig
2015-11-21  7:20 ` [PATCH 30/47] nvme: remove dead controllers from a work item Christoph Hellwig
2015-11-21  7:20 ` [PATCH 31/47] nvme: switch abort_limit to an atomic_t Christoph Hellwig
     [not found] ` <CAPb2fE8TDoMwWBgJmB6cBm5aywEj4DHLKfhReZauKq3WBp3EPg@mail.gmail.com>
2015-11-22  8:49   ` Christoph Hellwig [this message]

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