fjpanag commented on code in PR #7525:
URL: https://github.com/apache/nuttx/pull/7525#discussion_r1111041943
##########
net/can/Kconfig:
##########
@@ -30,11 +30,45 @@ config NET_CAN_HAVE_ERRORS
bool
default n
-config CAN_CONNS
- int "Max number of CAN socket connections"
+config CAN_PREALLOC_CONNS
+ int "Preallocated CAN socket connections"
default 4
---help---
- Maximum number of CAN connections (all tasks).
+ Number of CAN connections (all tasks).
+
+ This number of connections will be pre-allocated during system
boot.
+ If dynamic connections allocation is enabled, more connections
may
+ be allocated at a later time, as the system needs them. Else
this
+ will be the maximum number of connections available to the
system
+ at all times.
+
+ Set to 0 to disable (and rely only on dynamic allocations).
+
+config CAN_ALLOC_CONNS
+ int "Dynamic CAN connections allocation"
+ default 0
+ ---help---
+ Dynamic memory allocations for CAN.
+
+ When set to 0 all dynamic allocations are disabled.
+
+ When set to 1 a new connection will be allocated every time,
+ and it will be free'd when no longer needed.
+
+ Setting this to 2 or more will allocate the connections in
+ batches (with batch size equal to this config). When a
+ connection is no longer needed, it will be returned to the
+ free connections pool, and it will never be deallocated!
+
+config CAN_MAX_CONNS
+ int "Maximum number of CAN connections"
+ default 0
Review Comment:
Done.
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