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mac80211: make software rate control optional

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Some devices implement the entire rate control in
firmware in some way, like wl1271 or like iwlwifi
which does some things in software but not a lot.
Therefore generic software rate control is rather
useless for them and just adds avoidable overhead
to the transmit path.

It's fairly simple to let drivers indicate that
they do not need rate control, but they need to
fulfil a number of conditions that we encode in
WARN_ONs.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-11-17 18:18:36 +01:00
committed by John W. Linville
parent c95cf3d09a
commit af65cd96dd
6 changed files with 56 additions and 13 deletions
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net/mac80211/debugfs.c
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@@ -52,7 +52,7 @@ DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
static ssize_t tsf_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)