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path: root/include/linux/drbd_genl.h
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* drbd: Define the size of res_opts->cpu_mask in a single placeAndreas Gruenbacher2014-02-171-1/+1
| | | | | Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Improve some function and variable namingAndreas Gruenbacher2014-02-171-2/+2
| | | | | | | | | | | | | Rename functions conn_destroy() -> drbd_destroy_connection(), drbd_minor_destroy() -> drbd_destroy_device() drbd_adm_add_minor() -> drbd_adm_add_minor() drbd_adm_delete_minor() -> drbd_adm_del_minor() Rename global variable minors to drbd_devices Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Allow online change of al-stripes and al-stripe-sizePhilipp Reisner2013-06-281-0/+2
| | | | | | | | | | | | | | | | | | | | | Allow to change the AL layout with an resize operation. For that the reisze command gets two new fields: al_stripes and al_stripe_size. In order to make the operation crash save: 1) Lock out all IO and MD-IO 2) Write the super block with MDF_PRIMARY_IND clear 3) write the bitmap to the new location (all zeros, since we allow only while connected) 4) Initialize the new AL-area 5) Write the super block with the restored MDF_PRIMARY_IND. 6) Unfreeze all IO Since the AL-layout has no influence on the protocol, this operation needs to be beforemed on both sides of a resource (if intended). Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* drbd: pass some more information to userspace.Philipp Marek2012-11-091-0/+10
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: introduce stop-sector to online verifyLars Ellenberg2012-11-091-0/+1
| | | | | | | | | | | | | | | | We now can schedule only a specific range of sectors for online verify, or interrupt a running verify without interrupting the connection. Had to bump the protocol version differently, we are now 101. Added verify_can_do_stop_sector() { protocol >= 97 && protocol != 100; } Also, the return value convention for worker callbacks has changed, we returned "true/false" for "keep the connection up" in 8.3, we return 0 for success and <= for failure in 8.4. Affected: receive_state() Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: New disk option al-updatesPhilipp Reisner2012-11-081-0/+3
| | | | | | | | | | By disabling al-updates one might increase performace. The price for that is that in case a crashed primary (that had al-updates disabled) is reintegraded, it will receive a full-resync instead of a bitmap based resync. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Load balancing of read requestsPhilipp Reisner2012-11-081-0/+1
| | | | | | | | New config option for the disk secition "read-balancing", with the values: prefer-local, prefer-remote, round-robin, when-congested-remote. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: detach from frozen backing devicePhilipp Reisner2012-11-081-1/+8
| | | | | | | | | | | | | | | | | | | | * drbd-8.3: documentation: Documented detach's --force and disk's --disk-timeout drbd: Implemented the disk-timeout option drbd: Force flag for the detach operation drbd: Allow new IOs while the local disk in in FAILED state drbd: Bitmap IO functions can not return prematurely if the disk breaks drbd: Added a kref to bm_aio_ctx drbd: Hold a reference to ldev while doing meta-data IO drbd: Keep a reference to the bio until the completion handler finished drbd: Implemented wait_until_done_or_disk_failure() drbd: Replaced md_io_mutex by an atomic: md_io_in_use drbd: moved md_io into mdev drbd: Immediately allow completion of IOs, that wait for IO completions on a failed disk drbd: Keep a reference to barrier acked requests Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Rename --dry-run to --tentativeAndreas Gruenbacher2012-11-081-1/+1
| | | | | | | | | | | drbdadm already has a --dry-run option, so this option cannot directly be passed through to drbdsetup. Rename the drbdsetup option to resolve this conflict. For backward compatibility, make --dry-run an alias of --tentative. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Convert the generic netlink interface to accept connection endpointsAndreas Gruenbacher2012-11-081-31/+31
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Also need to check for DRBD_GENLA_F_MANDATORY flags before ↵Andreas Gruenbacher2012-11-081-1/+1
| | | | | | | | | | nla_find_nested() This is done by introducing drbd_nla_find_nested() which handles the flag before calling nla_find_nested(). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Use the terminology suggested by the command names in the source code ↵Andreas Gruenbacher2012-11-081-13/+4
| | | | | | | and messages Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Make drbd's use of netlink attribute flags less confusingAndreas Gruenbacher2012-11-081-122/+122
| | | | | | | | | | | | | | | Make it more clear in the flag names which flags are internal to drbd, and which are not. The check for mandatory attributes is the only extension visible at the netlink layer. Attributes with this flag set would look like unknown attributes to some kernel versions. The netlink layer would ignore them and also skip consistency checks on the attribute type and legth. To avoid this, we check for mandatory attributes first, remove the mandatory flag, and then process the attributes normally. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Convert resync-after into a signed netlink fieldAndreas Gruenbacher2012-11-081-1/+1
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Fix the upper limit of resync-afterAndreas Gruenbacher2012-11-081-1/+1
| | | | | | | | | | The 32-bit resync_after netlink field takes a device minor number as parameter, which is no longer limited to 255. We cannot statically verify which device numbers are valid, so set the ummer limit to the highest possible signed 32-bit integer. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Refer to connect-int consistently throughout the codeAndreas Gruenbacher2012-11-081-1/+1
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Refer to resync-rate consistently throughout the codeAndreas Gruenbacher2012-11-081-1/+1
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Rename the want_lose field/flag to discard_my_dataAndreas Gruenbacher2012-11-081-1/+1
| | | | | | | | This is what it is called in config files and on the command line as well. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Also define the default values of boolean flags in a single placeAndreas Gruenbacher2012-11-081-8/+8
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Turn no-tcp-cork into tcp-cork={yes|no}Andreas Gruenbacher2012-11-081-1/+1
| | | | | | | | Change the --no-tcp-cork drbdsetup command line option as well as the no_cork netlink packet. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Turn no-md-flushes into md-flushes={yes|no}Andreas Gruenbacher2012-11-081-1/+1
| | | | | | | | Change the --no-md-flushes drbdsetup command line option as well as the no_md_flush netlink packet. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Turn no-disk-drain into disk-drain={yes|no}Andreas Gruenbacher2012-11-081-1/+1
| | | | | | | | Change the --no-disk-drain drbdsetup command line option as well as the no_disk_drain netlink packet. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Turn no-disk-flushes into disk-flushes={yes|no}Andreas Gruenbacher2012-11-081-2/+2
| | | | | | | | Change the --no-disk-flushes drbdsetup command line option as well as the no_disk_flush netlink packet. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Introduce __s32_field in the genetlink macro magicLars Ellenberg2012-11-081-1/+1
| | | | | | | ...and drop explicit typecasts (int)meta_dev_idx < 0. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Generate the drbd_set_*_defaults() functions from drbd_genl.hAndreas Gruenbacher2012-11-081-46/+45
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Introduce protocol version 100 headersAndreas Gruenbacher2012-11-081-2/+0
| | | | | | | | | | | | | | | | | | The 8 byte header finally becomes too small. With the protocol 100 header we have 16 bit for the volume number, proper 32 bit for the data length, and 32 bit for further extensions in the future. Previous versions of drbd are using version 80 headers for all packets short enough for protocol 80. They support both header versions in worker context, but only version 80 headers in asynchronous context. For backwards compatibility, continue to use version 80 headers for short packets before protocol version 100. From protocol version 100 on, use the same header version for all packets. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: distribute former syncer_conf settings to disk, connection, and ↵Lars Ellenberg2012-11-081-58/+75
| | | | | | | | | | | | | | | | | | | | | | | | resource level This commit breaks the API again. Move per-volume former syncer options into disk_conf. Move per-connection former syncer options into net_conf. Renamed the remainign sync_conf to res_opts Syncer settings have been changeable at runtime, so we need to prepare for these settings to be runtime-changeable in their new home as well. Introduce new configuration operations, and share the netlink attribute between "attach" (create new disk) and "disk-opts" (change options). Same for "connect" and "net-opts". Some fields cannot be changed at runtime, however. Introduce a new flag GENLA_F_INVARIANT to be able to trigger on that in the generated validation and assignment functions. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: introduce in-kernel "down" commandLars Ellenberg2012-11-041-0/+2
| | | | | | | This greatly simplifies deconfiguration of whole resources. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: prepare the transition from connector to genetlinkLars Ellenberg2011-10-141-0/+349
This adds the new API header and helper files. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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