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-rw-r--r--UPDATING25
1 files changed, 25 insertions, 0 deletions
diff --git a/UPDATING b/UPDATING
index 77773982a8cb..3b58a097eb4d 100644
--- a/UPDATING
+++ b/UPDATING
@@ -51,6 +51,31 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW:
****************************** SPECIAL WARNING: ******************************
+20170524:
+ The ath(4) and ath_hal(4) modules now build piecemeal to allow for
+ smaller runtime footprint builds. This is useful for embedded systems
+ which only require one chipset support.
+
+ If you load it as a module, make sure this is in /boot/loader.conf:
+
+ if_ath_load="YES"
+
+ This will load the HAL, all chip/RF backends and if_ath_pci.
+ If you have if_ath_pci in /boot/loader.conf, ensure it is after
+ if_ath or it will not load any HAL chipset support.
+
+ If you want to selectively load things (eg on ye cheape ARM/MIPS
+ platforms where RAM is at a premium) you should:
+
+ * load ath_hal
+ * load the chip modules in question
+ * load ath_rate, ath_dfs
+ * load ath_main
+ * load if_ath_pci and/or if_ath_ahb depending upon your particular
+ bus bind type - this is where probe/attach is done.
+
+ For further comments/feedback, poke adrian@ .
+
20170523:
The "ino64" 64-bit inode project has been committed, which extends
a number of types to 64 bits. Upgrading in place requires care and