Messages in this thread Patch in this message | | | From | "Javier González" <> | Subject | [PATCH] lightnvm: do not load L2P table if not supported | Date | Wed, 2 Mar 2016 16:21:34 +0100 |
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An Open-Channel SSD can work on two modes: (i) hybrid mode, where the L2P table is maintained both by the host and by the device; and (ii) full host-based, where the L2P table is uniquely maintained by the host. The current rrpc target operates on hybrid mode.
In the advent of a new target implementing the full host-based mode, do not assume that the L2P table must be loaded on the generic media manager; check device properties loaded on the identify command instead.
Signed-off-by: Javier González <javier@cnexlabs.com> --- drivers/lightnvm/gennvm.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index 42c1c2a..0625d42 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -257,6 +257,9 @@ static int gennvm_blocks_init(struct nvm_dev *dev, struct gen_nvm *gn) } } + if (!(dev->identity.dom & NVM_RSP_L2P)) + return 0; + if (dev->ops->get_l2p_tbl) { ret = dev->ops->get_l2p_tbl(dev, 0, dev->total_secs, gennvm_block_map, dev); -- 2.5.0
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