FreeCalypso > hg > freecalypso-tools
annotate rvinterf/include/limits.h @ 991:8aeb840bc25f
target-utils/Makefile: add pln-ppb-test (no install)
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 03 Dec 2023 00:53:43 +0000 |
parents | ca6e969be6ee |
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1 /* |
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2 * For sizing our buffers etc in the rvinterf suite, including the local |
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3 * UNIX domain socket protocol between rvinterf and fc-tmsh etc, we need |
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4 * to have some limits on the message sizes in both host->target and |
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5 * target->host directions. |
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6 * |
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7 * For the host->target direction, the choice of message size limit is |
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8 * easy: the packet Rx code in RVT on the target side also has a limit |
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9 * (quite naturally, as it needs to use a static buffer to reassemble |
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10 * incoming packets as they arrive at the UART in unpredictable interrupt- |
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11 * sized chunks), so we set our limit to match that in RVT. |
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12 */ |
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13 |
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14 #define MAX_PKT_TO_TARGET 255 |
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Mychaela Falconia <falcon@freecalypso.org>
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15 |
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16 /* |
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17 * In the other direction (target->host), there is no fixed limit |
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18 * definition easily visible in the target fw code: any fw component |
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19 * can call rvt_send_trace_cpy() or rvt_mem_alloc() followed by |
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Mychaela Falconia <falcon@freecalypso.org>
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20 * rvt_send_trace_no_cpy(), or some higher-level API that reduces to |
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21 * these functions, with a message of any size, subject only to memory |
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22 * limits, which obviously aren't as strict as a #define'd maximum |
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ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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23 * message size. |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
parents:
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24 * |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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25 * With current FreeCalypso fw, unchanged from classic TCS211 in this |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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26 * aspect, the largest RVTMUX packets emitted by the fw are G23M PS |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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27 * primitives forwarded externally via GPF routing mechanism, and some |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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28 * of them exceed our previous arbitrary limit of 512 bytes. However, |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
parents:
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29 * the largest output packet size that can be generated via this |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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30 * mechanism equals the largest partition size in GPF partition pool |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
parents:
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31 * configuration, and that largest size is 1600 bytes. Hence we have |
ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
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32 * our answer as to what maximum packet size we need to support. |
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33 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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34 |
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ca6e969be6ee
rvinterf suite: raise MAX_PKT_FROM_TARGET to 1600
Mychaela Falconia <falcon@freecalypso.org>
parents:
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35 #define MAX_PKT_FROM_TARGET 1600 |
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36 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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37 /* |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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38 * Both limit definitions above counts all bytes between the opening and |
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39 * closing STX flags, but not DLEs inserted for binary transparency. |
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40 */ |