| Message ID | 1456932094-9808-1-git-send-email-javier@javigon.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 03/02/2016 04:21 PM, Javier González wrote: > 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); > Thanks, applied for 4.6. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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);
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(+)