freebsd-skq/sys/dev/ral/rt2860var.h
sgalabov 6c25216a49 Align radiotap structures in ral(4)
Currently all radiotap structures in ral(4) are packed, but are not
aligned, which causes ral based devices to crash when one does
'ifconfig wlan0 up' for a wlan interface with a ral wlandev on arches
that care about structure alignment (e.g., MIPS).

Adding an aligned attribute helps fix this problem and ral devices
can be properly brought up.

Reviewed by:	adrian
Sponsored by:	Smartcom - Bulgaria AD
2016-05-25 06:29:23 +00:00

210 lines
5.4 KiB
C

/*-
* Copyright (c) 2007 Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2012 Bernhard Schmidt <bschmidt@FreeBSD.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $OpenBSD: rt2860var.h,v 1.20 2010/09/07 16:21:42 deraadt Exp $
* $FreeBSD$
*/
#define RT2860_TX_RING_COUNT 64
#define RT2860_RX_RING_COUNT 128
#define RT2860_TX_POOL_COUNT (RT2860_TX_RING_COUNT * 2)
#define RT2860_MAX_SCATTER ((RT2860_TX_RING_COUNT * 2) - 1)
/* HW supports up to 255 STAs */
#define RT2860_WCID_MAX 254
#define RT2860_AID2WCID(aid) ((aid) & 0xff)
struct rt2860_rx_radiotap_header {
struct ieee80211_radiotap_header wr_ihdr;
uint64_t wr_tsf;
uint8_t wr_flags;
uint8_t wr_rate;
uint16_t wr_chan_freq;
uint16_t wr_chan_flags;
uint8_t wr_antenna;
int8_t wr_antsignal;
int8_t wr_antnoise;
} __packed __aligned(8);
#define RT2860_RX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_TSFT) | \
(1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
(1 << IEEE80211_RADIOTAP_CHANNEL) | \
(1 << IEEE80211_RADIOTAP_ANTENNA) | \
(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
struct rt2860_tx_radiotap_header {
struct ieee80211_radiotap_header wt_ihdr;
uint8_t wt_flags;
uint8_t wt_rate;
uint16_t wt_chan_freq;
uint16_t wt_chan_flags;
} __packed __aligned(8);
#define RT2860_TX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
(1 << IEEE80211_RADIOTAP_CHANNEL))
struct rt2860_tx_data {
struct rt2860_txwi *txwi;
struct mbuf *m;
struct ieee80211_node *ni;
bus_dmamap_t map;
bus_addr_t paddr;
SLIST_ENTRY(rt2860_tx_data) next;
};
struct rt2860_tx_ring {
struct rt2860_txd *txd;
bus_addr_t paddr;
bus_dma_tag_t desc_dmat;
bus_dmamap_t desc_map;
bus_dma_segment_t seg;
struct rt2860_tx_data *data[RT2860_TX_RING_COUNT];
int cur;
int next;
int queued;
};
struct rt2860_rx_data {
struct mbuf *m;
bus_dmamap_t map;
};
struct rt2860_rx_ring {
struct rt2860_rxd *rxd;
bus_addr_t paddr;
bus_dma_tag_t desc_dmat;
bus_dmamap_t desc_map;
bus_dma_tag_t data_dmat;
bus_dma_segment_t seg;
unsigned int cur; /* must be unsigned */
struct rt2860_rx_data data[RT2860_RX_RING_COUNT];
};
struct rt2860_node {
struct ieee80211_node ni;
uint8_t wcid;
uint8_t ridx[IEEE80211_RATE_MAXSIZE];
uint8_t ctl_ridx[IEEE80211_RATE_MAXSIZE];
};
struct rt2860_vap {
struct ieee80211vap ral_vap;
int (*ral_newstate)(struct ieee80211vap *,
enum ieee80211_state, int);
};
#define RT2860_VAP(vap) ((struct rt2860_vap *)(vap))
struct rt2860_softc {
struct ieee80211com sc_ic;
struct mbufq sc_snd;
struct mtx sc_mtx;
device_t sc_dev;
bus_space_tag_t sc_st;
bus_space_handle_t sc_sh;
struct callout watchdog_ch;
int sc_invalid;
int sc_debug;
/*
* The same in both up to here
* ------------------------------------------------
*/
uint16_t (*sc_srom_read)(struct rt2860_softc *,
uint16_t);
void (*sc_node_free)(struct ieee80211_node *);
int sc_flags;
#define RT2860_ENABLED (1 << 0)
#define RT2860_ADVANCED_PS (1 << 1)
#define RT2860_PCIE (1 << 2)
#define RT2860_RUNNING (1 << 3)
struct ieee80211_node *wcid2ni[RT2860_WCID_MAX];
struct rt2860_tx_ring txq[6];
struct rt2860_rx_ring rxq;
SLIST_HEAD(, rt2860_tx_data) data_pool;
struct rt2860_tx_data data[RT2860_TX_POOL_COUNT];
bus_dma_tag_t txwi_dmat;
bus_dmamap_t txwi_map;
bus_dma_segment_t txwi_seg;
caddr_t txwi_vaddr;
int sc_tx_timer;
int mgtqid;
uint8_t qfullmsk;
uint16_t mac_ver;
uint16_t mac_rev;
uint16_t rf_rev;
uint8_t freq;
uint8_t ntxchains;
uint8_t nrxchains;
uint8_t pslevel;
int8_t txpow1[54];
int8_t txpow2[54];
int8_t rssi_2ghz[3];
int8_t rssi_5ghz[3];
uint8_t lna[4];
uint8_t rf24_20mhz;
uint8_t rf24_40mhz;
uint8_t patch_dac;
uint8_t rfswitch;
uint8_t ext_2ghz_lna;
uint8_t ext_5ghz_lna;
uint8_t calib_2ghz;
uint8_t calib_5ghz;
uint8_t txmixgain_2ghz;
uint8_t txmixgain_5ghz;
uint8_t tssi_2ghz[9];
uint8_t tssi_5ghz[9];
uint8_t step_2ghz;
uint8_t step_5ghz;
struct {
uint8_t reg;
uint8_t val;
} bbp[8], rf[10];
uint8_t leds;
uint16_t led[3];
uint32_t txpow20mhz[5];
uint32_t txpow40mhz_2ghz[5];
uint32_t txpow40mhz_5ghz[5];
struct rt2860_rx_radiotap_header sc_rxtap;
struct rt2860_tx_radiotap_header sc_txtap;
};
int rt2860_attach(device_t, int);
int rt2860_detach(void *);
void rt2860_shutdown(void *);
void rt2860_suspend(void *);
void rt2860_resume(void *);
void rt2860_intr(void *);
#define RAL_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
#define RAL_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED)
#define RAL_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)