The DRBD driver

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
author: Philipp Reisner <philipp.reisner@linbit.com> 2009-09-25 19:07:19 -0400
committer: Jens Axboe <jens.axboe@oracle.com> 2009-10-01 15:17:49 -0400
commit: b411b3637fa71fce9cf2acf0639009500f5892fe (patch)
tree: 6b88e5202e0f137fef50e95b0441bcafdbf91990 /Documentation/blockdev/drbd/DRBD-data-packets.svg
parent: 1a35e0f6443f4266dad4c569c55c57a9032596fa (diff)
1 files changed, 459 insertions, 0 deletions
diff --git a/Documentation/blockdev/drbd/DRBD-data-packets.svg b/Documentation/blockdev/drbd/DRBD-data-packets.svg
new file mode 100644
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@@ -0,0 +1,459 @@
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+       y="17807"
+       id="tspan295">w_make_resync_request()</tspan>
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+    <tspan
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+       y="18806"
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+       y="19606"
+       id="tspan327">drbd_endio_read_sec()</tspan>
+  </text>
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
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+       y="20007"
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+    <tspan
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+       y="20507"
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+       y="21407"
+       id="tspan375">drbd_endio_write_sec()</tspan>
+  </text>
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+       y="21907"
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+  </text>
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+       y="19573.385"
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+       id="tspan457">Resync blocks, 4-32K</tspan>
+  </text>
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+     y="-2097.7664"
+     transform="matrix(0.9788674,0.2044961,-0.2044961,0.9788674,0,0)"
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="10682.666 10911.666 11088.666 11177.666"
+       y="4107.2339"
+       id="tspan541">Data</tspan>
+  </text>
+  <text
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+    <tspan
+       x="4746 4924 5030 5207 5385 5563 5826 6003 6164 6342 6520 6626 6803 6981 7159 7337 7498 7587 7692"
+       y="5505"
+       id="tspan557">drbd_make_request()</tspan>
+  </text>
+  <text
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="12200 12306 12484 12645 12822 12894 13055 13233 13411 13639 13817 13906 14084 14190"
+       y="6806"
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+    <tspan
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+       y="7606"
+       id="tspan589">drbd_endio_write_sec()</tspan>
+  </text>
+  <text
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="12192 12370 12548 12725 12903 13081 13259 13437 13509 13686 13847 14008 14114"
+       y="8007"
+       id="tspan605">e_end_block()</tspan>
+  </text>
+  <text
+     id="text619"
+     style="font-size:318px;font-weight:400;fill:#000080;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="5647 5825 6003 6092 6269 6481 6553 6731 6892 7052 7264 7425 7586 7692"
+       y="8606"
+       id="tspan621">got_BlockAck()</tspan>
+  </text>
+  <text
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+     style="font-size:423px;font-weight:400;fill:#000000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
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+       y="4877"
+       id="tspan637">Regular mirrored write, 512-32K</tspan>
+  </text>
+  <text
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="5381 5610 5787 5948 6126 6304 6482 6659 6837 7015 7087 7265 7426 7587 7692"
+       y="6003"
+       id="tspan653">w_send_dblock()</tspan>
+  </text>
+  <path
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+       y="6905"
+       id="tspan685">drbd_endio_write_pri()</tspan>
+  </text>
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+  </text>
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="4746 4924 5030 5207 5385 5563 5826 6003 6164 6342 6520 6626 6803 6981 7159 7337 7498 7587 7692"
+       y="11506"
+       id="tspan785">drbd_make_request()</tspan>
+  </text>
+  <text
+     id="text799"
+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
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+  </text>
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
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+       y="13607"
+       id="tspan817">drbd_endio_read_sec()</tspan>
+  </text>
+  <text
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
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+       y="14008"
+       id="tspan833">w_e_end_data_req()</tspan>
+  </text>
+  <g
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+     style="visibility:visible">
+    <desc
+       id="desc837">Drawing</desc>
+    <text
+       id="text847"
+       style="font-size:318px;font-weight:400;fill:#008000;font-family:Helvetica embedded">
+      <tspan
+         x="4885 4991 5169 5330 5507 5579 5740 5918 6096 6324 6502 6591 6769 6997 7175 7353 7425 7586 7692"
+         y="14607"
+         id="tspan849">receive_DataReply()</tspan>
+    </text>
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+  <text
+     id="text863"
+     style="font-size:423px;font-weight:400;fill:#000000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="8000 8305 8398 8610 8821 8914 9151 9363 9575 9693 9833 10070 10307 10544 10663 10781 11018 11255 11493 11632 11869 12106"
+       y="10878"
+       id="tspan865">Diskless read, 512-32K</tspan>
+  </text>
+  <text
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+     style="font-size:318px;font-weight:400;fill:#008000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="5029 5258 5435 5596 5774 5952 6130 6307 6413 6591 6769 6947 7125 7230 7408 7586 7692"
+       y="12004"
+       id="tspan881">w_send_read_req()</tspan>
+  </text>
+  <text
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+     style="font-size:423px;font-weight:400;fill:#000000;visibility:visible;font-family:Helvetica embedded">
+    <tspan
+       x="6961 7266 7571 7854 8159 8278 8515 8633 8870 9107 9226 9463 9581 9700 9793 10030"
+       y="2806"
+       id="tspan897">DRBD 8 data flow</tspan>
+  </text>
+  <path
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+    <tspan
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+       y="5202"
+       id="tspan949">al_begin_io()</tspan>
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+    <tspan
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+  </text>
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+    <tspan
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+  </text>
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+    <tspan
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+</svg>
author	Philipp Reisner <philipp.reisner@linbit.com>	2009-09-25 19:07:19 -0400
committer	Jens Axboe <jens.axboe@oracle.com>	2009-10-01 15:17:49 -0400
commit	b411b3637fa71fce9cf2acf0639009500f5892fe (patch)
tree	6b88e5202e0f137fef50e95b0441bcafdbf91990 /Documentation/blockdev/drbd/DRBD-data-packets.svg
parent	1a35e0f6443f4266dad4c569c55c57a9032596fa (diff)

diff --git a/Documentation/blockdev/drbd/DRBD-data-packets.svg b/Documentation/blockdev/drbd/DRBD-data-packets.svg new file mode 100644 index 000000000000..48a1e2165fec --- /dev/null +++ b/Documentation/blockdev/drbd/DRBD-data-packets.svg
@@ -0,0 +1,459 @@
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	80	id="tspan295">w_make_resync_request()</tspan>
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	96	id="tspan327">drbd_endio_read_sec()</tspan>
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	104	id="tspan343">w_e_end_rsdata_req()</tspan>
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	112	id="tspan359">receive_RSDataReply()</tspan>
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	120	id="tspan375">drbd_endio_write_sec()</tspan>
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	128	id="tspan391">e_end_resync_block()</tspan>
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	155	id="tspan441">got_BlockAck()</tspan>
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	217	id="tspan557">drbd_make_request()</tspan>
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	232	y="7606"
	233	id="tspan589">drbd_endio_write_sec()</tspan>
	234	</text>
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	240	y="8007"
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	246	<tspan
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	248	y="8606"
	249	id="tspan621">got_BlockAck()</tspan>
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	256	y="4877"
	257	id="tspan637">Regular mirrored write, 512-32K</tspan>
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	264	y="6003"
	265	id="tspan653">w_send_dblock()</tspan>
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	280	y="6905"
	281	id="tspan685">drbd_endio_write_pri()</tspan>
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	335	id="tspan785">drbd_make_request()</tspan>
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	351	id="tspan817">drbd_endio_read_sec()</tspan>
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	358	y="14008"
	359	id="tspan833">w_e_end_data_req()</tspan>
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	369	<tspan
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	371	y="14607"
	372	id="tspan849">receive_DataReply()</tspan>
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	378	<tspan
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	380	y="10878"
	381	id="tspan865">Diskless read, 512-32K</tspan>
	382	</text>
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	386	<tspan
	387	x="5029 5258 5435 5596 5774 5952 6130 6307 6413 6591 6769 6947 7125 7230 7408 7586 7692"
	388	y="12004"
	389	id="tspan881">w_send_read_req()</tspan>
	390	</text>
	391	<text
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	394	<tspan
	395	x="6961 7266 7571 7854 8159 8278 8515 8633 8870 9107 9226 9463 9581 9700 9793 10030"
	396	y="2806"
	397	id="tspan897">DRBD 8 data flow</tspan>
	398	</text>
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	417	id="tspan949">al_begin_io()</tspan>
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	425	id="tspan965">al_complete_io()</tspan>
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	433	id="tspan981">rs_begin_io()</tspan>
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	449	id="tspan1013">rs_begin_io()</tspan>
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	453	style="font-size:318px;font-weight:400;fill:#000000;visibility:visible;font-family:Helvetica embedded">
	454	<tspan
	455	x="16115 16221 16382 16560 16720 16898 17161 17338 17410 17588 17677 17855 18033 18105 18282 18388"
	456	y="20331"
	457	id="tspan1029">rs_complete_io()</tspan>
	458	</text>
	459	</svg>