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freebsd-dev/sys/dev/ath/if_ath_rx.h

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Migrate the bulk of the RX routines out from if_ath.c to if_ath_rx.[ch]. * migrate the rx processing out into if_ath_rx.c * migrate the TSF functions into if_ath_tsf.h, as inlines This is in prepration for supporting the EDMA RX routines, required to support the AR93xx series NICs. TODO: * ath_start() shouldn't be private, but it's called as part of the RX path. I should likely migrate ath_rx_tasklet() back into if_ath.c and then return this to be 'static'. The RX code really shouldn't need to see TX routines (and vice versa.) * ath_beacon_* should be in if_ath_beacon.[ch]. * ath_tdma_* should be in if_ath_tdma.[ch] ...
2012-05-20 02:05:10 +00:00
/*-
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#ifndef __IF_ATH_RX_H__
#define __IF_ATH_RX_H__
extern u_int32_t ath_calcrxfilter(struct ath_softc *sc);
extern void ath_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
int subtype, int rssi, int nf);
Begin abstracting out the RX path in preparation for RX EDMA support. The RX EDMA support requires a modified approach to the RX descriptor handling. Specifically: * There's now two RX queues - high and low priority; * The RX queues are implemented as FIFOs; they're now an array of pointers to buffers; * .. and the RX buffer and descriptor are in the same "buffer", rather than being separate. So to that end, this commit abstracts out most of the RX related functions from the bulk of the driver. Notably, the RX DMA/buffer allocation isn't updated, primarily because I haven't yet fleshed out what it should look like. Whilst I'm here, create a set of matching but mostly unimplemented EDMA stubs. Tested: * AR9280, station mode TODO: * Thorough AP and other mode testing for non-EDMA chips; * Figure out how to allocate RX buffers suitable for RX EDMA, including correctly setting the mbuf length to compensate for the RX descriptor and completion status area.
2012-07-03 06:59:12 +00:00
#define ath_stoprecv(_sc, _dodelay) \
(_sc)->sc_rx.recv_stop((_sc), (_dodelay))
#define ath_startrecv(_sc) \
(_sc)->sc_rx.recv_start((_sc))
#define ath_rx_flush(_sc) \
(_sc)->sc_rx.recv_flush((_sc))
#define ath_rxbuf_init(_sc, _bf) \
(_sc)->sc_rx.recv_rxbuf_init((_sc), (_bf))
Further preparations for the RX EDMA support. Break out the DMA descriptor setup/teardown code into a method. The EDMA RX code doesn't allocate descriptors, just ath_buf entries.
2012-07-09 08:37:59 +00:00
#define ath_rxdma_setup(_sc) \
(_sc)->sc_rx.recv_setup(_sc)
#define ath_rxdma_teardown(_sc) \
(_sc)->sc_rx.recv_teardown(_sc)
Begin abstracting out the RX path in preparation for RX EDMA support. The RX EDMA support requires a modified approach to the RX descriptor handling. Specifically: * There's now two RX queues - high and low priority; * The RX queues are implemented as FIFOs; they're now an array of pointers to buffers; * .. and the RX buffer and descriptor are in the same "buffer", rather than being separate. So to that end, this commit abstracts out most of the RX related functions from the bulk of the driver. Notably, the RX DMA/buffer allocation isn't updated, primarily because I haven't yet fleshed out what it should look like. Whilst I'm here, create a set of matching but mostly unimplemented EDMA stubs. Tested: * AR9280, station mode TODO: * Thorough AP and other mode testing for non-EDMA chips; * Figure out how to allocate RX buffers suitable for RX EDMA, including correctly setting the mbuf length to compensate for the RX descriptor and completion status area.
2012-07-03 06:59:12 +00:00
#if 0
extern int ath_rxbuf_init(struct ath_softc *sc, struct ath_buf *bf);
Migrate the bulk of the RX routines out from if_ath.c to if_ath_rx.[ch]. * migrate the rx processing out into if_ath_rx.c * migrate the TSF functions into if_ath_tsf.h, as inlines This is in prepration for supporting the EDMA RX routines, required to support the AR93xx series NICs. TODO: * ath_start() shouldn't be private, but it's called as part of the RX path. I should likely migrate ath_rx_tasklet() back into if_ath.c and then return this to be 'static'. The RX code really shouldn't need to see TX routines (and vice versa.) * ath_beacon_* should be in if_ath_beacon.[ch]. * ath_tdma_* should be in if_ath_tdma.[ch] ...
2012-05-20 02:05:10 +00:00
extern void ath_rx_tasklet(void *arg, int npending);
extern void ath_rx_proc(struct ath_softc *sc, int resched);
extern void ath_stoprecv(struct ath_softc *sc, int dodelay);
extern int ath_startrecv(struct ath_softc *sc);
Begin abstracting out the RX path in preparation for RX EDMA support. The RX EDMA support requires a modified approach to the RX descriptor handling. Specifically: * There's now two RX queues - high and low priority; * The RX queues are implemented as FIFOs; they're now an array of pointers to buffers; * .. and the RX buffer and descriptor are in the same "buffer", rather than being separate. So to that end, this commit abstracts out most of the RX related functions from the bulk of the driver. Notably, the RX DMA/buffer allocation isn't updated, primarily because I haven't yet fleshed out what it should look like. Whilst I'm here, create a set of matching but mostly unimplemented EDMA stubs. Tested: * AR9280, station mode TODO: * Thorough AP and other mode testing for non-EDMA chips; * Figure out how to allocate RX buffers suitable for RX EDMA, including correctly setting the mbuf length to compensate for the RX descriptor and completion status area.
2012-07-03 06:59:12 +00:00
#endif
Convert sc_rxpending to a per-EDMA queue, and use that for the legacy code. Prepare ath_rx_pkt() to handle multiple RX queues, and default the legacy RX queue to use the HP queue.
2012-07-10 00:02:19 +00:00
extern int ath_rx_pkt(struct ath_softc *sc, struct ath_rx_status *rs,
HAL_STATUS status, uint64_t tsf, int nf, HAL_RX_QUEUE qtype,
struct ath_buf *bf);
Begin abstracting out the RX path in preparation for RX EDMA support. The RX EDMA support requires a modified approach to the RX descriptor handling. Specifically: * There's now two RX queues - high and low priority; * The RX queues are implemented as FIFOs; they're now an array of pointers to buffers; * .. and the RX buffer and descriptor are in the same "buffer", rather than being separate. So to that end, this commit abstracts out most of the RX related functions from the bulk of the driver. Notably, the RX DMA/buffer allocation isn't updated, primarily because I haven't yet fleshed out what it should look like. Whilst I'm here, create a set of matching but mostly unimplemented EDMA stubs. Tested: * AR9280, station mode TODO: * Thorough AP and other mode testing for non-EDMA chips; * Figure out how to allocate RX buffers suitable for RX EDMA, including correctly setting the mbuf length to compensate for the RX descriptor and completion status area.
2012-07-03 06:59:12 +00:00
extern void ath_recv_setup_legacy(struct ath_softc *sc);
Migrate the bulk of the RX routines out from if_ath.c to if_ath_rx.[ch]. * migrate the rx processing out into if_ath_rx.c * migrate the TSF functions into if_ath_tsf.h, as inlines This is in prepration for supporting the EDMA RX routines, required to support the AR93xx series NICs. TODO: * ath_start() shouldn't be private, but it's called as part of the RX path. I should likely migrate ath_rx_tasklet() back into if_ath.c and then return this to be 'static'. The RX code really shouldn't need to see TX routines (and vice versa.) * ath_beacon_* should be in if_ath_beacon.[ch]. * ath_tdma_* should be in if_ath_tdma.[ch] ...
2012-05-20 02:05:10 +00:00
#endif
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