a620865edf
To achieve maximal throughput, it is very important to react to interrupts as soon as possible. Currently the interrupt handler wakes up a worker for handling interrupts in process context. A cleaner and more efficient design would be to request a threaded interrupt handler. This handler's priority is very high, and can do blocking operations such as SDIO/SPI transactions. Some work can be deferred, mostly calls to mac80211 APIs (ieee80211_rx_ni and ieee80211_tx_status). By deferring such work to a different worker, we can keep the irq handler thread more I/O responsive. In addition, on multi-core systems the two threads can be scheduled on different cores, which will improve overall performance. The use of WL1271_FLAG_IRQ_PENDING & WL1271_FLAG_IRQ_RUNNING was changed. For simplicity, always query the FW for more pending interrupts. Since there are relatively long bursts of interrupts, the extra FW status read overhead is negligible. In addition, this enables registering the IRQ handler with the ONESHOT option. Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __PS_H__
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#define __PS_H__
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#include "wl12xx.h"
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#include "acx.h"
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int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode,
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u32 rates, bool send);
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void wl1271_ps_elp_sleep(struct wl1271 *wl);
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int wl1271_ps_elp_wakeup(struct wl1271 *wl);
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void wl1271_elp_work(struct work_struct *work);
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void wl1271_ps_link_start(struct wl1271 *wl, u8 hlid, bool clean_queues);
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void wl1271_ps_link_end(struct wl1271 *wl, u8 hlid);
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#endif /* __WL1271_PS_H__ */
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