Messages in this thread | | | From | Javier Gonzalez <> | Subject | Re: [PATCH V2 4/4] nvme: lightnvm: add late setup of block size and metadata | Date | Mon, 12 Feb 2018 20:21:49 +0000 |
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> On 9 Feb 2018, at 01.27, Matias Bjørling <mb@lightnvm.io> wrote: > > The nvme driver sets up the size of the nvme namespace in two steps. > First it initializes the device with standard logical block and > metadata sizes, and then sets the correct logical block and metadata > size. Due to the OCSSD 2.0 specification relies on the namespace to > expose these sizes for correct initialization, let it be updated > appropriately on the LightNVM side as well. > > Signed-off-by: Matias Bjørling <mb@lightnvm.io> > --- >
This late initialization breaks ligthnvm's core init since the sector size (csecs) is used on the first init part to set the logical block size.
nvm_core_init -> blk_queue_logical_block_size(dev->q, dev_geo->c.csecs);
We can do do a nvme_nvm_revalidate and set this on the revalidation path instead of simply updating the info as in nvme_nvm_update_nvm_info().
Javier [unhandled content-type:application/pgp-signature]
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