Re: [PATCH 1/2] mac80211: add hw configuration for max ampdu buffer size

[Johannes Berg <johannes@sipsolutions.net>]

On Wed, 2011-01-12 at 14:40 +0200, coelho@ti.com wrote:
> From: Luciano Coelho <coelho@ti.com>
> 
> Some devices don't support the maximum AMDPU buffer size of 64, so we
> need to add an option to configure this in the hardware configuration.
> This value will be used in the ADDBA response instead of the value
> suggested in the request, if the latter is greater than the max
> supported.
> 
> Signed-off-by: Luciano Coelho <coelho@ti.com>
> ---
>  include/net/mac80211.h |    4 ++++
>  net/mac80211/agg-rx.c  |    3 +++
>  net/mac80211/main.c    |    1 +
>  3 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/include/net/mac80211.h b/include/net/mac80211.h
> index 5b3fd5a..1341d82 100644
> --- a/include/net/mac80211.h
> +++ b/include/net/mac80211.h
> @@ -1143,6 +1143,9 @@ enum ieee80211_hw_flags {
>   * @napi_weight: weight used for NAPI polling.  You must specify an
>   *	appropriate value here if a napi_poll operation is provided
>   *	by your driver.
> + * @max_rx_aggregation_subframes: maximum buffer size (number of
> + *	sub-frames) to be used for A-MPDU block ack receiver
> + *	aggregation.

... "This is only relevant if the device has restrictions on the number
of subframes, if it relies on mac80211 to do reordering it shouldn't be
set." maybe?

johannes