> -----Original Message----- > From: Niklas Cassel <[email protected]> > Sent: Monday, 29 June 2020 11.04 > To: Damien Le Moal <[email protected]> > Cc: Matias Bjorling <[email protected]>; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; Hans Holmberg <[email protected]>; > [email protected]; [email protected]; linux- > [email protected]; [email protected] > Subject: Re: [PATCH 1/2] block: add zone_desc_ext_bytes to sysfs > > On Mon, Jun 29, 2020 at 12:52:46AM +0000, Damien Le Moal wrote: > > On 2020/06/29 8:01, Matias Bjorling wrote: > > > The NVMe Zoned Namespace Command Set adds support for associating > > > data to a zone through the Zone Descriptor Extension feature. > > > > > > The Zone Descriptor Extension size is fixed to a multiple of 64 > > > bytes. A value of zero communicates the feature is not available. > > > A value larger than zero communites the feature is available, and > > > the specified Zone Descriptor Extension size in bytes. > > > > > > The Zone Descriptor Extension feature is only available in the NVMe > > > Zoned Namespaces Command Set. Devices that supports ZAC/ZBC > > > therefore reports this value as zero, where as the NVMe device > > > driver reports the Zone Descriptor Extension size from the specific > > > device. > > > > > > Signed-off-by: Matias Bjørling <[email protected]> > > > --- > > > Documentation/block/queue-sysfs.rst | 6 ++++++ > > > block/blk-sysfs.c | 15 ++++++++++++++- > > > drivers/nvme/host/zns.c | 1 + > > > drivers/scsi/sd_zbc.c | 1 + > > > include/linux/blkdev.h | 22 ++++++++++++++++++++++ > > > 5 files changed, 44 insertions(+), 1 deletion(-) > > > > > > diff --git a/Documentation/block/queue-sysfs.rst > > > b/Documentation/block/queue-sysfs.rst > > > index f261a5c84170..c4fa195c87b4 100644 > > (snip) > > > > static struct queue_sysfs_entry queue_nomerges_entry = { > > > .attr = {.name = "nomerges", .mode = 0644 }, > > > .show = queue_nomerges_show, > > > @@ -787,6 +798,7 @@ static struct attribute *queue_attrs[] = { > > > &queue_nr_zones_entry.attr, > > > &queue_max_open_zones_entry.attr, > > > &queue_max_active_zones_entry.attr, > > > > Which tree is this patch based on ? Not I have seen any patch > > introducing max active zones. > > The cover letter forgot to mention this patch series' dependencies. > I assume that it is based on the following patch series: > https://lore.kernel.org/linux-block/20200622162530.1287650-1- > [email protected]/ > https://lore.kernel.org/linux-block/20200616102546.491961-1- > [email protected]/ >
Very true. Thanks, Niklas. I'll rebase this work when the above patchsets have been picked up. > > Kind regards, > Niklas
