brcmsmac: Introduce AMPDU sessions for assembling AMPDUs

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AMPDU session allows MPDUs to be temporarily queued until either a full
AMPDU has been collected or circumstances dictate that transmission
should start with a partial AMPDU. Packets are added to the session by
calling brcms_c_ampdu_add_frame(). brcms_c_ampdu_finalize() should be
called to fix up the tx headers in the first and last packet before
adding the packets to the DMA ring. brmcs_c_sendampdu() is converted to
using AMPDU sessions.

This patch has no real value on it's own, but is needed in preparation
for elimination of the tx packet queue from brcmsmac.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Daniel Wagner <wagi@monom.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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This commit is contained in:

Seth Forshee 2012-11-15 08:07:51 -06:00 • committed by John W. Linville

parent cb675f5ff3

commit ef2c0512bb

2 changed files with 377 additions and 274 deletions

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627

drivers/net/wireless/brcm80211/brcmsmac/ampdu.c

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26

drivers/net/wireless/brcm80211/brcmsmac/ampdu.h

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