... | @@ -256,8 +256,23 @@ Announce-message packet rate to 8 pkts/s). The log\_value is software |
... | @@ -256,8 +256,23 @@ Announce-message packet rate to 8 pkts/s). The log\_value is software |
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limited to a minimum value of -4. Please note that these values are
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limited to a minimum value of -4. Please note that these values are
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global and all your WR Switch ports will have the packet rate modified.
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global and all your WR Switch ports will have the packet rate modified.
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??Author: Adrian Savencu,
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??Author: Adrian Savencu, [OPNT](http://www.opnt.nl??)
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[OPNT](http://www.opnt.nl??)
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### Q: Can the WR Switch handle Jumbo frames?
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A: Yes, the switch can handle frames larger than 1500 Bytes, so-called
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[Jumbo Frames](https://en.wikipedia.org/wikis/Jumbo_frame). But you'll
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have to enable it first. You would need to enable giant frames reception
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on a WR switch port where you're sending frames larger than 1500 Bytes.
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IIRC there is no software tool in the current release that will do this
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for you, so you would need to manually write to a proper register using
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devmem. Please see page 9 (for endpoint base addresses) and page 33 (for
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bit A\_GIANT) of the [White Rabbit Switch HDL software interface
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document](https://www.ohwr.org/project/white-rabbit/uploads/0e90236d5e9b48b41424dfc695d23cc4/switch_hdl-sw-v4.0.pdf).
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E.g. for port 3 (endpoint no. 2) you would write to address 0x10030808.
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Author: Greg Daniluk,
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CERN
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-----
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-----
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... | @@ -467,8 +482,9 @@ versions of a switch there were problems to flash directly via USB. |
... | @@ -467,8 +482,9 @@ versions of a switch there were problems to flash directly via USB. |
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Please note that there was a bug in the firmware v5.0 \[2\], which may
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Please note that there was a bug in the firmware v5.0 \[2\], which may
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affect the procedure.
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affect the procedure.
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??Author: Adam Wujek, [CERN](http://cern.ch??)
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??Author: Adam Wujek, [CERN](http://cern.ch??)
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\---
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-----
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## Building firmware
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## Building firmware
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... | @@ -703,7 +719,7 @@ content of SFPs memory. |
... | @@ -703,7 +719,7 @@ content of SFPs memory. |
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-----
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-----
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10 March 2017
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29 October 2018
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