linux-toradex.git/drivers/lightnvm/rrpc.c, branch v4.4.6 Linux kernel for Apalis and Colibri modules lightnvm: replace req queue with nvmdev for lld 2015-12-07T16:14:19+00:00 Matias Bjørling m@bjorling.me 2015-12-06T10:25:48+00:00 16f26c3aa9b9c36a9d1092ae3258461d1008481e In the case where a request queue is passed to the low lever lightnvm device drive integration, the device driver might pass its admin commands through another queue. Instead pass nvm_dev, and let the low level drive the appropriate queue. Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
In the case where a request queue is passed to the low lever lightnvm
device drive integration, the device driver might pass its admin
commands through another queue. Instead pass nvm_dev, and let the
low level drive the appropriate queue.

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
lightnvm: put blks when luns configure failed 2015-12-07T16:14:19+00:00 Wenwei Tao ww.tao0320@gmail.com 2015-12-06T10:25:44+00:00 d3d1a43842077c53e22dedaebfe7cb52022b18e1 Put the allocated blocks back to the free list when the luns configure failed, to make these blocks useable to others. Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
Put the allocated blocks back to the free list
when the luns configure failed, to make these
blocks useable to others.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
lightnvm: use flags in rrpc_get_blk 2015-12-07T16:14:19+00:00 Wenwei Tao ww.tao0320@gmail.com 2015-12-06T10:25:43+00:00 f27a62995330fdc5f804acf2ebf1444f9025c879 rrpc_get_blk use constant 0 as the input parameter of nvm_get_blk, this may result in getting gc block failed unexpectedly. Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
rrpc_get_blk use constant 0 as the input parameter
of nvm_get_blk, this may result in getting gc block
failed unexpectedly.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
lightnvm: remove linear and device addr modes 2015-11-16T22:20:34+00:00 Matias Bjørling m@bjorling.me 2015-11-16T14:34:44+00:00 7386af270c72be65c7cb2ba4ad0d4e70dc373106 The linear and device specific address modes can be replaced with a simple offset and bit length conversion that is generic across all devices. This both simplifies the specification and removes the special case for qemu nvme, that previously relied on the linear address mapping. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
The linear and device specific address modes can be replaced with a
simple offset and bit length conversion that is generic across all
devices.

This both simplifies the specification and removes the special case for
qemu nvme, that previously relied on the linear address mapping.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
block: change ->make_request_fn() and users to return a queue cookie 2015-11-07T17:40:46+00:00 Jens Axboe axboe@fb.com 2015-11-05T17:41:16+00:00 dece16353ef47d8d33f5302bc158072a9d65e26f No functional changes in this patch, but it prepares us for returning a more useful cookie related to the IO that was queued up. Signed-off-by: Jens Axboe <axboe@fb.com> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> 
No functional changes in this patch, but it prepares us for returning
a more useful cookie related to the IO that was queued up.

Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
lightnvm: refactor phys addrs type to u64 2015-11-03T16:53:24+00:00 Matias Bjørling m@bjorling.me 2015-11-02T16:12:27+00:00 b7ceb7d50048d0dd4830f106f0fb7f5424031598 For cases where CONFIG_LBDAF is not set. The struct ppa_addr exceeds its type on 32 bit architectures. ppa_addr requires a 64bit integer to hold the generic ppa format. We therefore refactor it to u64 and replaces the sector_t usages with u64 for physical addresses. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
For cases where CONFIG_LBDAF is not set. The struct ppa_addr exceeds its
type on 32 bit architectures. ppa_addr requires a 64bit integer to hold
the generic ppa format. We therefore refactor it to u64 and
replaces the sector_t usages with u64 for physical addresses.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
rrpc: Round-robin sector target with cost-based gc 2015-10-29T07:21:42+00:00 Matias Bjørling m@bjorling.me 2015-10-28T18:54:57+00:00 ae1519ec448bc31a7fe7369b66e7c78872f91e84 This target allows an Open-Channel SSD to be exposed asas a block device. It implements a round-robin approach for sector allocation, together with a greedy cost-based garbage collector. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com> 
This target allows an Open-Channel SSD to be exposed asas a block
device.

It implements a round-robin approach for sector allocation,
together with a greedy cost-based garbage collector.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>