drbd: distribute former syncer_conf settings to disk, connection, and 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>
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h
index a07d692..938e856 100644
--- a/include/linux/drbd_genl.h
+++ b/include/linux/drbd_genl.h
@@ -102,66 +102,73 @@
)
GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
- __u64_field(1, GENLA_F_MANDATORY, disk_size)
- __str_field(2, GENLA_F_REQUIRED, backing_dev, 128)
- __str_field(3, GENLA_F_REQUIRED, meta_dev, 128)
- __u32_field(4, GENLA_F_REQUIRED, meta_dev_idx)
- __u32_field(5, GENLA_F_MANDATORY, max_bio_bvecs)
+ __str_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, backing_dev, 128)
+ __str_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev, 128)
+ __u32_field(3, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev_idx)
+
+ /* use the resize command to try and change the disk_size */
+ __u64_field(4, GENLA_F_MANDATORY | GENLA_F_INVARIANT, disk_size)
+ /* we could change the max_bio_bvecs,
+ * but it won't propagate through the stack */
+ __u32_field(5, GENLA_F_MANDATORY | GENLA_F_INVARIANT, max_bio_bvecs)
+
__u32_field(6, GENLA_F_MANDATORY, on_io_error)
__u32_field(7, GENLA_F_MANDATORY, fencing)
- __flg_field(8, GENLA_F_MANDATORY, no_disk_barrier)
- __flg_field(9, GENLA_F_MANDATORY, no_disk_flush)
- __flg_field(10, GENLA_F_MANDATORY, no_disk_drain)
- __flg_field(11, GENLA_F_MANDATORY, no_md_flush)
- __flg_field(12, GENLA_F_MANDATORY, use_bmbv)
+
+ __u32_field(8, GENLA_F_MANDATORY, resync_rate)
+ __u32_field(9, GENLA_F_MANDATORY, resync_after)
+ __u32_field(10, GENLA_F_MANDATORY, al_extents)
+ __u32_field(11, GENLA_F_MANDATORY, c_plan_ahead)
+ __u32_field(12, GENLA_F_MANDATORY, c_delay_target)
+ __u32_field(13, GENLA_F_MANDATORY, c_fill_target)
+ __u32_field(14, GENLA_F_MANDATORY, c_max_rate)
+ __u32_field(15, GENLA_F_MANDATORY, c_min_rate)
+
+ __flg_field(16, GENLA_F_MANDATORY, no_disk_barrier)
+ __flg_field(17, GENLA_F_MANDATORY, no_disk_flush)
+ __flg_field(18, GENLA_F_MANDATORY, no_disk_drain)
+ __flg_field(19, GENLA_F_MANDATORY, no_md_flush)
+
)
-GENL_struct(DRBD_NLA_SYNCER_CONF, 4, syncer_conf,
- __u32_field(1, GENLA_F_MANDATORY, rate)
- __u32_field(2, GENLA_F_MANDATORY, after)
- __u32_field(3, GENLA_F_MANDATORY, al_extents)
- __str_field(4, GENLA_F_MANDATORY, cpu_mask, 32)
- __str_field(5, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
- __str_field(6, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
- __flg_field(7, GENLA_F_MANDATORY, use_rle)
- __u32_field(8, GENLA_F_MANDATORY, on_no_data)
- __u32_field(9, GENLA_F_MANDATORY, c_plan_ahead)
- __u32_field(10, GENLA_F_MANDATORY, c_delay_target)
- __u32_field(11, GENLA_F_MANDATORY, c_fill_target)
- __u32_field(12, GENLA_F_MANDATORY, c_max_rate)
- __u32_field(13, GENLA_F_MANDATORY, c_min_rate)
+GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,
+ __str_field(1, GENLA_F_MANDATORY, cpu_mask, 32)
+ __u32_field(2, GENLA_F_MANDATORY, on_no_data)
)
GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
- __str_field(1, GENLA_F_MANDATORY | GENLA_F_SENSITIVE,
+ __bin_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, my_addr, 128)
+ __bin_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, peer_addr, 128)
+ __str_field(3, GENLA_F_MANDATORY | GENLA_F_SENSITIVE,
shared_secret, SHARED_SECRET_MAX)
- __str_field(2, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
- __str_field(3, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
- __str_field(4, GENLA_F_REQUIRED, my_addr, 128)
- __str_field(5, GENLA_F_REQUIRED, peer_addr, 128)
- __u32_field(6, GENLA_F_REQUIRED, wire_protocol)
- __u32_field(7, GENLA_F_MANDATORY, try_connect_int)
- __u32_field(8, GENLA_F_MANDATORY, timeout)
- __u32_field(9, GENLA_F_MANDATORY, ping_int)
- __u32_field(10, GENLA_F_MANDATORY, ping_timeo)
- __u32_field(11, GENLA_F_MANDATORY, sndbuf_size)
- __u32_field(12, GENLA_F_MANDATORY, rcvbuf_size)
- __u32_field(13, GENLA_F_MANDATORY, ko_count)
- __u32_field(14, GENLA_F_MANDATORY, max_buffers)
- __u32_field(15, GENLA_F_MANDATORY, max_epoch_size)
- __u32_field(16, GENLA_F_MANDATORY, unplug_watermark)
- __u32_field(17, GENLA_F_MANDATORY, after_sb_0p)
- __u32_field(18, GENLA_F_MANDATORY, after_sb_1p)
- __u32_field(19, GENLA_F_MANDATORY, after_sb_2p)
- __u32_field(20, GENLA_F_MANDATORY, rr_conflict)
- __u32_field(21, GENLA_F_MANDATORY, on_congestion)
- __u32_field(22, GENLA_F_MANDATORY, cong_fill)
- __u32_field(23, GENLA_F_MANDATORY, cong_extents)
- __flg_field(24, GENLA_F_MANDATORY, two_primaries)
- __flg_field(25, GENLA_F_MANDATORY, want_lose)
- __flg_field(26, GENLA_F_MANDATORY, no_cork)
- __flg_field(27, GENLA_F_MANDATORY, always_asbp)
- __flg_field(28, GENLA_F_MANDATORY, dry_run)
+ __str_field(4, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
+ __str_field(5, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
+ __str_field(6, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
+ __str_field(7, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
+ __u32_field(8, GENLA_F_MANDATORY, wire_protocol)
+ __u32_field(9, GENLA_F_MANDATORY, try_connect_int)
+ __u32_field(10, GENLA_F_MANDATORY, timeout)
+ __u32_field(11, GENLA_F_MANDATORY, ping_int)
+ __u32_field(12, GENLA_F_MANDATORY, ping_timeo)
+ __u32_field(13, GENLA_F_MANDATORY, sndbuf_size)
+ __u32_field(14, GENLA_F_MANDATORY, rcvbuf_size)
+ __u32_field(15, GENLA_F_MANDATORY, ko_count)
+ __u32_field(16, GENLA_F_MANDATORY, max_buffers)
+ __u32_field(17, GENLA_F_MANDATORY, max_epoch_size)
+ __u32_field(18, GENLA_F_MANDATORY, unplug_watermark)
+ __u32_field(19, GENLA_F_MANDATORY, after_sb_0p)
+ __u32_field(20, GENLA_F_MANDATORY, after_sb_1p)
+ __u32_field(21, GENLA_F_MANDATORY, after_sb_2p)
+ __u32_field(22, GENLA_F_MANDATORY, rr_conflict)
+ __u32_field(23, GENLA_F_MANDATORY, on_congestion)
+ __u32_field(24, GENLA_F_MANDATORY, cong_fill)
+ __u32_field(25, GENLA_F_MANDATORY, cong_extents)
+ __flg_field(26, GENLA_F_MANDATORY, two_primaries)
+ __flg_field(27, GENLA_F_MANDATORY | GENLA_F_INVARIANT, want_lose)
+ __flg_field(28, GENLA_F_MANDATORY, no_cork)
+ __flg_field(29, GENLA_F_MANDATORY, always_asbp)
+ __flg_field(30, GENLA_F_MANDATORY | GENLA_F_INVARIANT, dry_run)
+ __flg_field(31, GENLA_F_MANDATORY, use_rle)
)
GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
@@ -270,11 +277,10 @@
GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
- /* operates on replication links */
-GENL_op(DRBD_ADM_SYNCER, 9,
- GENL_doit(drbd_adm_syncer),
+GENL_op(DRBD_ADM_RESOURCE_OPTS, 9,
+ GENL_doit(drbd_adm_resource_opts),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, GENLA_F_MANDATORY)
)
GENL_op(
@@ -284,16 +290,28 @@
GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
)
+GENL_op(
+ DRBD_ADM_CHG_NET_OPTS, 29,
+ GENL_doit(drbd_adm_net_opts),
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
+ GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
+)
+
GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
- /* operates on minors */
GENL_op(DRBD_ADM_ATTACH, 12,
GENL_doit(drbd_adm_attach),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
)
+GENL_op(DRBD_ADM_CHG_DISK_OPTS, 28,
+ GENL_doit(drbd_adm_disk_opts),
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
+ GENL_tla_expected(DRBD_NLA_DISK_OPTS, GENLA_F_REQUIRED)
+)
+
GENL_op(
DRBD_ADM_RESIZE, 13,
GENL_doit(drbd_adm_resize),
@@ -301,7 +319,6 @@
GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
)
- /* operates on all volumes within a resource */
GENL_op(
DRBD_ADM_PRIMARY, 14,
GENL_doit(drbd_adm_set_role),