| Message ID | 20220809000419.10674-7-michael.christie@oracle.com (mailing list archive) |
|---|---|
| State | Changes Requested, archived |
| Delegated to: | Mike Snitzer |
| Headers | show |
| Series | Use block pr_ops in LIO | expand |
On Mon, Aug 08, 2022 at 07:04:05PM -0500, Mike Christie wrote: > This fixes the following issues with the reservation status structs: > > 1. resv10 is bytes 23:10 so it should be 14 bytes. > 2. regctl_ds only supports 64 bit host IDs. This doesn't actually seem to be used by the kernel at all. Which I guess means I need to go back into my todo list and tackle the discussion if we want to have non-kernel bits in nvme.h to start with. -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
On 8/9/22 00:19, Christoph Hellwig wrote: > On Mon, Aug 08, 2022 at 07:04:05PM -0500, Mike Christie wrote: >> This fixes the following issues with the reservation status structs: >> >> 1. resv10 is bytes 23:10 so it should be 14 bytes. >> 2. regctl_ds only supports 64 bit host IDs. > > This doesn't actually seem to be used by the kernel at all. Which > I guess means I need to go back into my todo list and tackle the > discussion if we want to have non-kernel bits in nvme.h to start > with. Having non-kernel bits in nvme.h creates confusion, I've raised this question in past, in case old nvme-cli (without libnvme) was the reason to keep them in kernel maybe we can sort this out since now that nvme-cli and libnvme are spilt ? -ck -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
diff --git a/include/linux/nvme.h b/include/linux/nvme.h index ae53d74f3696..ae4a76076420 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -757,20 +757,37 @@ enum { NVME_LBART_ATTRIB_HIDE = 1 << 1, }; +struct nvme_registered_ctrl { + __le16 cntlid; + __u8 rcsts; + __u8 rsvd3[5]; + __le64 hostid; + __le64 rkey; +}; + +struct nvme_registered_ctrl_ext { + __le16 cntlid; + __u8 rcsts; + __u8 rsvd3[5]; + __le64 rkey; + __u8 hostid[16]; + __u8 rsvd32[32]; +}; + struct nvme_reservation_status { __le32 gen; __u8 rtype; __u8 regctl[2]; __u8 resv5[2]; __u8 ptpls; - __u8 resv10[13]; - struct { - __le16 cntlid; - __u8 rcsts; - __u8 resv3[5]; - __le64 hostid; - __le64 rkey; - } regctl_ds[]; + __u8 resv10[14]; + union { + struct { + __u8 rsvd24[40]; + struct nvme_registered_ctrl_ext regctl_eds[0]; + }; + struct nvme_registered_ctrl regctl_ds[0]; + }; }; enum nvme_async_event_type {
This fixes the following issues with the reservation status structs: 1. resv10 is bytes 23:10 so it should be 14 bytes. 2. regctl_ds only supports 64 bit host IDs. Signed-off-by: Mike Christie <michael.christie@oracle.com> --- include/linux/nvme.h | 33 +++++++++++++++++++++++++-------- 1 file changed, 25 insertions(+), 8 deletions(-)