- 01 Feb, 2008 1 commit
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Johannes Berg authored
When the rate control algorithms are built-in, their exit functions can be called from mac80211's init function so they cannot be marked __exit. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Acked-by:
Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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- 28 Jan, 2008 12 commits
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Stefano Brivio authored
Fix last_sample initialization. kzalloc'ing the per-STA data wasn't enough, as jiffies can assume negative values as well. This fixes a bug which prevented correct PID operation for a while after booting. Thanks to Michael Buesch for reporting this. Reported-and-tested-by:
Michael Buesch <mb@bu3sch.de> Signed-off-by:
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Michael Wu authored
Mattias Nissler's "clean up rate selection" patch incorrectly changes the behavior of txrate setting in sta_info. This patch backs out parts of the rate selection consolidation in order to fix this issue for now. Signed-off-by:
Michael Wu <flamingice@sourmilk.net> Signed-off-by:
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Andrew Lutomirski authored
I would argue that mac80211 should handle fixed rates outside the rate control code, which would also allow them to take effect immediately instead of during the rate control callback, but this is pretty close to correct. Signed-Off-By:
Andy Lutomirski <luto@myrealbox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
This patch changes mac80211's Kconfig/Makefile to: * select between the PID and the SIMPLE rate control algorithm as default * always allow tri-state for the rate control algorithms, building those that are selected 'y' into the mac80211 module (if that is a module, otherwise all into the kernel) * force the default rate control algorithm to be built into mac80211 It also makes both rate control algorithms proper modules again with MODULE_LICENSE etc. Only if EMBEDDED is the user allowed to select "NONE" as default which will cause no algorithm to be selected, this will work only when the driver brings one itself (e.g. iwlwifi drivers). Signed-off-by:
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Stefano Brivio authored
Fix a bug which caused uncorrect refcounting of PHYs in mac80211. Thanks to Johannes Berg for spotting this out. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Stefano Brivio authored
Simplify and fix rate_control_pid_shift_adjust(). A bug prevented correct mapping of sorted rates, and readability was seriously flawed. Signed-off-by:
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Stefano Brivio authored
Export the non-shifted target_pf value to debugfs, so that it's human-readable. Signed-off-by:
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Mattias Nissler authored
This adds all the tunable parameters used by rc80211_pid to debugfs for easy testing and tuning. Signed-off-by:
Mattias Nissler <mattias.nissler@gmx.de> Signed-off-by:
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Mattias Nissler authored
This adds a new debugfs file from which rate control relevant events can be read one event per line. The output includes the current time, so graphs can be created showing the rate control parameters. This helps in evaluating and tuning rate control parameters. While at it, we split headers and code for better readability. Signed-off-by:
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Stefano Brivio authored
This patch introduces a PID sharpening factor for faster response after association and low activity events. Signed-off-by:
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Stefano Brivio authored
This patch introduces a learning algorithm in order for the PID controller to learn how to map adjustment values to rates. This is better described in code comments. Signed-off-by:
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Mattias Nissler authored
Add a new rate control algorithm based on a PID controller. It samples the percentage of failed frames over time, feeds the result into the controller and uses its output to control the TX rate. Signed-off-by:
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