drbd: New sync parameters for the smart resync rate controller
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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9a31d7164d
4 changed files with 25 additions and 13 deletions
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@ -2690,7 +2690,11 @@ static void drbd_set_defaults(struct drbd_conf *mdev)
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/* .cpu_mask = */ {}, 0,
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/* .csums_alg = */ {}, 0,
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/* .use_rle = */ 0,
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/* .on_no_data = */ DRBD_ON_NO_DATA_DEF
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/* .on_no_data = */ DRBD_ON_NO_DATA_DEF,
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/* .c_plan_ahead = */ DRBD_C_PLAN_AHEAD_DEF,
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/* .c_delay_target = */ DRBD_C_DELAY_TARGET_DEF,
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/* .c_fill_target = */ DRBD_C_FILL_TARGET_DEF,
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/* .c_max_rate = */ DRBD_C_MAX_RATE_DEF
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};
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/* Have to use that way, because the layout differs between
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@ -1599,6 +1599,10 @@ static int drbd_nl_syncer_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *n
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sc.after = DRBD_AFTER_DEF;
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sc.al_extents = DRBD_AL_EXTENTS_DEF;
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sc.on_no_data = DRBD_ON_NO_DATA_DEF;
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sc.c_plan_ahead = DRBD_C_PLAN_AHEAD_DEF;
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sc.c_delay_target = DRBD_C_DELAY_TARGET_DEF;
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sc.c_fill_target = DRBD_C_FILL_TARGET_DEF;
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sc.c_max_rate = DRBD_C_MAX_RATE_DEF;
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} else
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memcpy(&sc, &mdev->sync_conf, sizeof(struct syncer_conf));
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@ -134,21 +134,21 @@
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#define DRBD_MAX_BIO_BVECS_MAX 128
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#define DRBD_MAX_BIO_BVECS_DEF 0
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#define DRBD_DP_VOLUME_MIN 4
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#define DRBD_DP_VOLUME_MAX 1048576
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#define DRBD_DP_VOLUME_DEF 16384
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#define DRBD_C_PLAN_AHEAD_MIN 0
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#define DRBD_C_PLAN_AHEAD_MAX 300
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#define DRBD_C_PLAN_AHEAD_DEF 0 /* RS rate controller disabled by default */
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#define DRBD_DP_INTERVAL_MIN 1
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#define DRBD_DP_INTERVAL_MAX 600
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#define DRBD_DP_INTERVAL_DEF 5
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#define DRBD_C_DELAY_TARGET_MIN 1
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#define DRBD_C_DELAY_TARGET_MAX 100
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#define DRBD_C_DELAY_TARGET_DEF 10
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#define DRBD_RS_THROTTLE_TH_MIN 1
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#define DRBD_RS_THROTTLE_TH_MAX 600
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#define DRBD_RS_THROTTLE_TH_DEF 20
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#define DRBD_C_FILL_TARGET_MIN 0
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#define DRBD_C_FILL_TARGET_MAX 100000
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#define DRBD_C_FILL_TARGET_DEF 0 /* By default disabled -> controlled by delay_target */
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#define DRBD_RS_HOLD_OFF_TH_MIN 1
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#define DRBD_RS_HOLD_OFF_TH_MAX 6000
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#define DRBD_RS_HOLD_OFF_TH_DEF 100
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#define DRBD_C_MAX_RATE_MIN 250 /* kByte/sec */
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#define DRBD_C_MAX_RATE_MAX (4 << 20)
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#define DRBD_C_MAX_RATE_DEF 102400
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#undef RANGE
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#endif
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@ -88,6 +88,10 @@ NL_PACKET(syncer_conf, 8,
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NL_STRING( 64, T_MAY_IGNORE, csums_alg, SHARED_SECRET_MAX)
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NL_BIT( 65, T_MAY_IGNORE, use_rle)
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NL_INTEGER( 75, T_MAY_IGNORE, on_no_data)
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NL_INTEGER( 76, T_MAY_IGNORE, c_plan_ahead)
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NL_INTEGER( 77, T_MAY_IGNORE, c_delay_target)
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NL_INTEGER( 78, T_MAY_IGNORE, c_fill_target)
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NL_INTEGER( 79, T_MAY_IGNORE, c_max_rate)
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)
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NL_PACKET(invalidate, 9, )
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