v2 was here: https://lists.gnu.org/archive/html/qemu-devel/2022-11/msg02340.html
Since then: - upstream NBD has accepted the extension on a branch; once multiple implementations interoperate based on that spec, it will be promoted to mainline (my plan: qemu with this series, libnbd nearly ready to go, nbdkit a bit further out) - rebase to block changes in meantime - drop RFC patches for 64-bit NBD_CMD_READ (NBD spec did not take them) - per upstream spec decision, extended headers now mandates use of NBD_REPLY_TYPE_BLOCK_STATUS_EXT rather than server choice based on reply size, which in turn required rearranging server patches a bit - other changes that I noticed while testing with parallel changes being added to libnbd (link to those patches to follow in the next week or so) Eric Blake (14): nbd/client: Use smarter assert nbd/client: Add safety check on chunk payload length nbd/server: Prepare for alternate-size headers nbd: Prepare for 64-bit request effect lengths nbd: Add types for extended headers nbd/server: Refactor handling of request payload nbd/server: Refactor to pass full request around nbd/server: Support 64-bit block status nbd/server: Initial support for extended headers nbd/client: Initial support for extended headers nbd/client: Accept 64-bit block status chunks nbd/client: Request extended headers during negotiation nbd/server: Prepare for per-request filtering of BLOCK_STATUS nbd/server: Add FLAG_PAYLOAD support to CMD_BLOCK_STATUS docs/interop/nbd.txt | 1 + include/block/nbd.h | 165 +++-- nbd/nbd-internal.h | 8 +- block/nbd.c | 86 ++- nbd/client-connection.c | 4 +- nbd/client.c | 143 ++-- nbd/common.c | 10 +- nbd/server.c | 653 ++++++++++++------ qemu-nbd.c | 4 + block/trace-events | 1 + nbd/trace-events | 11 +- tests/qemu-iotests/223.out | 18 +- tests/qemu-iotests/233.out | 5 + tests/qemu-iotests/241.out | 3 + tests/qemu-iotests/307.out | 15 +- .../tests/nbd-qemu-allocation.out | 3 +- 16 files changed, 797 insertions(+), 333 deletions(-) base-commit: 18b6727083acceac5d76ea0b8cb6f5cdef6858a7 -- 2.40.1
