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10b16b260c
freebsd-nq/sys/dev/an/if_anreg.h
Tai-hwa Liang 6404b10238 MFP4(128855, 129015): 
- Trying to eliminate another racing by replacing the timeout(9) with
  callout APIs.  In addition to that, the callout_drain() in an_detach()
  help us to avoid a possible panic-on-free due to the callout API tries
  to lock a destroyed mutex.
- In an_stats_update(), check the return value of an_read_record(). This
  should reduce the chance of device removal(PCCARD) panic [2].
- Adding a comment to state the fact that an_stats_update() is now called
  via callout(9) with a lock held [2].

Submitted by:	jhb [1], ambrisko [2]
Reviewed by:	jhb, ambrisko
Reported by:	dhw
Tested by:	dhw
MFC after:	3 days
2007-11-16 11:22:18 +00:00

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/*-
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*
* $FreeBSD$
*/
#define AN_TIMEOUT 65536
/* Default network name: <empty string> */
#define AN_DEFAULT_NETNAME ""
/* The nodename must be less than 16 bytes */
#define AN_DEFAULT_NODENAME "FreeBSD"
#define AN_DEFAULT_IBSS "FreeBSD IBSS"
/*
* register space access macros
*/
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->an_btag, sc->an_bhandle, reg, val)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->an_btag, sc->an_bhandle, reg)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->an_btag, sc->an_bhandle, reg, val)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->an_btag, sc->an_bhandle, reg)
/*
* memory space access macros
*/
#define CSR_MEM_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->an_mem_btag, sc->an_mem_bhandle, reg, val)
#define CSR_MEM_READ_2(sc, reg) \
bus_space_read_2(sc->an_mem_btag, sc->an_mem_bhandle, reg)
#define CSR_MEM_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->an_mem_btag, sc->an_mem_bhandle, reg, val)
#define CSR_MEM_READ_1(sc, reg) \
bus_space_read_1(sc->an_mem_btag, sc->an_mem_bhandle, reg)
/*
* aux. memory space access macros
*/
#define CSR_MEM_AUX_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->an_mem_aux_btag, sc->an_mem_aux_bhandle, reg, val)
#define CSR_MEM_AUX_READ_4(sc, reg) \
bus_space_read_4(sc->an_mem_aux_btag, sc->an_mem_aux_bhandle, reg)
#define CSR_MEM_AUX_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->an_mem_aux_btag, sc->an_mem_aux_bhandle, reg, val)
#define CSR_MEM_AUX_READ_1(sc, reg) \
bus_space_read_1(sc->an_mem_aux_btag, sc->an_mem_aux_bhandle, reg)
/*
* Size of Aironet I/O space.
*/
#define AN_IOSIZ 0x40
/*
* Size of aux. memory space ... probably not needed DJA
*/
#define AN_AUX_MEM_SIZE (256 * 1024)
/*
* Hermes register definitions and what little I know about them.
*/
/* Hermes command/status registers. */
#define AN_COMMAND(x) (x ? 0x00 : 0x00)
#define AN_PARAM0(x) (x ? 0x04 : 0x02)
#define AN_PARAM1(x) (x ? 0x08 : 0x04)
#define AN_PARAM2(x) (x ? 0x0c : 0x06)
#define AN_STATUS(x) (x ? 0x10 : 0x08)
#define AN_RESP0(x) (x ? 0x14 : 0x0A)
#define AN_RESP1(x) (x ? 0x18 : 0x0C)
#define AN_RESP2(x) (x ? 0x1c : 0x0E)
#define AN_LINKSTAT(x) (x ? 0x20 : 0x10)
/* Command register */
#define AN_CMD_BUSY 0x8000 /* busy bit */
#define AN_CMD_NO_ACK 0x0080 /* don't acknowledge command */
#define AN_CMD_CODE_MASK 0x003F
#define AN_CMD_QUAL_MASK 0x7F00
/* Command codes */
#define AN_CMD_NOOP 0x0000 /* no-op */
#define AN_CMD_ENABLE 0x0001 /* enable */
#define AN_CMD_DISABLE 0x0002 /* disable */
#define AN_CMD_FORCE_SYNCLOSS 0x0003 /* force loss of sync */
#define AN_CMD_FW_RESTART 0x0004 /* firmware restart */
#define AN_CMD_HOST_SLEEP 0x0005
#define AN_CMD_MAGIC_PKT 0x0006
#define AN_CMD_READCFG 0x0008
#define AN_CMD_SET_MODE 0x0009
#define AN_CMD_ALLOC_MEM 0x000A /* allocate NIC memory */
#define AN_CMD_TX 0x000B /* transmit */
#define AN_CMD_DEALLOC_MEM 0x000C
#define AN_CMD_NOOP2 0x0010
#define AN_CMD_ALLOC_DESC 0x0020
#define AN_CMD_ACCESS 0x0021
#define AN_CMD_ALLOC_BUF 0x0028
#define AN_CMD_PSP_NODES 0x0030
#define AN_CMD_SET_PHYREG 0x003E
#define AN_CMD_TX_TEST 0x003F
#define AN_CMD_SLEEP 0x0085
#define AN_CMD_SAVECFG 0x0108
/*
* MPI 350 DMA descriptor information
*/
#define AN_DESCRIPTOR_TX 0x01
#define AN_DESCRIPTOR_RX 0x02
#define AN_DESCRIPTOR_TXCMP 0x04
#define AN_DESCRIPTOR_HOSTWRITE 0x08
#define AN_DESCRIPTOR_HOSTREAD 0x10
#define AN_DESCRIPTOR_HOSTRW 0x20
#define AN_MAX_RX_DESC 1
#define AN_MAX_TX_DESC 1
#define AN_HOSTBUFSIZ 1840
struct an_card_rid_desc
{
unsigned an_rid:16;
unsigned an_len:15;
unsigned an_valid:1;
u_int64_t an_phys;
};
struct an_card_rx_desc
{
unsigned an_ctrl:15;
unsigned an_done:1;
unsigned an_len:15;
unsigned an_valid:1;
u_int64_t an_phys;
};
struct an_card_tx_desc
{
unsigned an_offset:15;
unsigned an_eoc:1;
unsigned an_len:15;
unsigned an_valid:1;
u_int64_t an_phys;
};
#define AN_RID_BUFFER_SIZE AN_MAX_DATALEN
#define AN_RX_BUFFER_SIZE AN_HOSTBUFSIZ
#define AN_TX_BUFFER_SIZE AN_HOSTBUFSIZ
/*#define AN_HOST_DESC_OFFSET 0xC sort of works */
#define AN_HOST_DESC_OFFSET 0x800
#define AN_RX_DESC_OFFSET (AN_HOST_DESC_OFFSET + \
sizeof(struct an_card_rid_desc))
#define AN_TX_DESC_OFFSET (AN_RX_DESC_OFFSET + \
(AN_MAX_RX_DESC * sizeof(struct an_card_rx_desc)))
struct an_command {
u_int16_t an_cmd;
u_int16_t an_parm0;
u_int16_t an_parm1;
u_int16_t an_parm2;
};
struct an_reply {
u_int16_t an_status;
u_int16_t an_resp0;
u_int16_t an_resp1;
u_int16_t an_resp2;
};
/*
* Reclaim qualifier bit, applicable to the
* TX command.
*/
#define AN_RECLAIM 0x0100 /* reclaim NIC memory */
/*
* ACCESS command qualifier bits.
*/
#define AN_ACCESS_READ 0x0000
#define AN_ACCESS_WRITE 0x0100
/*
* PROGRAM command qualifier bits.
*/
#define AN_PROGRAM_DISABLE 0x0000
#define AN_PROGRAM_ENABLE_RAM 0x0100
#define AN_PROGRAM_ENABLE_NVRAM 0x0200
#define AN_PROGRAM_NVRAM 0x0300
/* Status register values */
#define AN_STAT_CMD_CODE 0x003F
#define AN_STAT_CMD_RESULT 0x7F00
/* Linkstat register */
#define AN_LINKSTAT_ASSOCIATED 0x0400
#define AN_LINKSTAT_AUTHFAIL 0x0300
#define AN_LINKSTAT_ASSOC_FAIL 0x8400
#define AN_LINKSTAT_DISASSOC 0x8200
#define AN_LINKSTAT_DEAUTH 0x8100
#define AN_LINKSTAT_SYNCLOST_TSF 0x8004
#define AN_LINKSTAT_SYNCLOST_HOSTREQ 0x8003
#define AN_LINKSTAT_SYNCLOST_AVGRETRY 0x8002
#define AN_LINKSTAT_SYNCLOST_MAXRETRY 0x8001
#define AN_LINKSTAT_SYNCLOST_MISSBEACON 0x8000
/* memory handle management registers */
#define AN_RX_FID 0x20
#define AN_ALLOC_FID 0x22
#define AN_TX_CMP_FID(x) (x ? 0x1a : 0x24)
/*
* Buffer Access Path (BAP) registers.
* These are I/O channels. I believe you can use each one for
* any desired purpose independently of the other. In general
* though, we use BAP1 for reading and writing LTV records and
* reading received data frames, and BAP0 for writing transmit
* frames. This is a convention though, not a rule.
*/
#define AN_SEL0 0x18
#define AN_SEL1 0x1A
#define AN_OFF0 0x1C
#define AN_OFF1 0x1E
#define AN_DATA0 0x36
#define AN_DATA1 0x38
#define AN_BAP0 AN_DATA0
#define AN_BAP1 AN_DATA1
#define AN_OFF_BUSY 0x8000
#define AN_OFF_ERR 0x4000
#define AN_OFF_DONE 0x2000
#define AN_OFF_DATAOFF 0x0FFF
/* Event registers */
#define AN_EVENT_STAT(x) (x ? 0x60 : 0x30) /* Event status */
#define AN_INT_EN(x) (x ? 0x64 : 0x32) /* Interrupt enable/
disable */
#define AN_EVENT_ACK(x) (x ? 0x68 : 0x34) /* Ack event */
/* Events */
#define AN_EV_CLR_STUCK_BUSY 0x4000 /* clear stuck busy bit */
#define AN_EV_WAKEREQUEST 0x2000 /* awaken from PSP mode */
#define AN_EV_MIC 0x1000 /* Message Integrity Check*/
#define AN_EV_AWAKE 0x0100 /* station woke up from PSP mode*/
#define AN_EV_LINKSTAT 0x0080 /* link status available */
#define AN_EV_CMD 0x0010 /* command completed */
#define AN_EV_ALLOC 0x0008 /* async alloc/reclaim completed */
#define AN_EV_TX_CPY 0x0400
#define AN_EV_TX_EXC 0x0004 /* async xmit completed with failure */
#define AN_EV_TX 0x0002 /* async xmit completed succesfully */
#define AN_EV_RX 0x0001 /* async rx completed */
#define AN_INTRS(x) \
( x ? (AN_EV_RX|AN_EV_TX|AN_EV_TX_EXC|AN_EV_TX_CPY|AN_EV_ALLOC \
|AN_EV_LINKSTAT|AN_EV_MIC) \
: \
(AN_EV_RX|AN_EV_TX|AN_EV_TX_EXC|AN_EV_ALLOC \
|AN_EV_LINKSTAT|AN_EV_MIC) \
)
/* Host software registers */
#define AN_SW0(x) (x ? 0x50 : 0x28)
#define AN_SW1(x) (x ? 0x54 : 0x2A)
#define AN_SW2(x) (x ? 0x58 : 0x2C)
#define AN_SW3(x) (x ? 0x5c : 0x2E)
#define AN_CNTL 0x14
#define AN_CNTL_AUX_ENA 0xC000
#define AN_CNTL_AUX_ENA_STAT 0xC000
#define AN_CNTL_AUX_DIS_STAT 0x0000
#define AN_CNTL_AUX_ENA_CNTL 0x8000
#define AN_CNTL_AUX_DIS_CNTL 0x4000
#define AN_AUX_PAGE 0x3A
#define AN_AUX_OFFSET 0x3C
#define AN_AUX_DATA 0x3E
/*
* Length, Type, Value (LTV) record definitions and RID values.
*/
struct an_ltv_gen {
u_int16_t an_len;
u_int16_t an_type;
u_int16_t an_val;
};
#define AN_DEF_SSID_LEN 7
#define AN_DEF_SSID "tsunami"
#define AN_RXGAP_MAX 8
/*
* Transmit frame structure.
*/
struct an_txframe {
u_int32_t an_tx_sw; /* 0x00 */
u_int16_t an_tx_status; /* 0x04 */
u_int16_t an_tx_payload_len; /* 0x06 */
u_int16_t an_tx_ctl; /* 0x08 */
u_int16_t an_tx_assoc_id; /* 0x0A */
u_int16_t an_tx_retry; /* 0x0C */
u_int8_t an_tx_assoc_cnt; /* 0x0E */
u_int8_t an_tx_rate; /* 0x0F */
u_int8_t an_tx_max_long_retries; /* 0x10 */
u_int8_t an_tx_max_short_retries; /*0x11 */
u_int8_t an_rsvd0[2]; /* 0x12 */
u_int16_t an_frame_ctl; /* 0x14 */
u_int16_t an_duration; /* 0x16 */
u_int8_t an_addr1[6]; /* 0x18 */
u_int8_t an_addr2[6]; /* 0x1E */
u_int8_t an_addr3[6]; /* 0x24 */
u_int16_t an_seq_ctl; /* 0x2A */
u_int8_t an_addr4[6]; /* 0x2C */
u_int8_t an_gaplen; /* 0x32 */
} __packed;
struct an_rxframe_802_3 {
u_int16_t an_rx_802_3_status; /* 0x34 */
u_int16_t an_rx_802_3_payload_len;/* 0x36 */
u_int8_t an_rx_dst_addr[6]; /* 0x38 */
u_int8_t an_rx_src_addr[6]; /* 0x3E */
};
#define AN_RXGAP_MAX 8
struct an_txframe_802_3 {
/*
* Transmit 802.3 header structure.
*/
u_int16_t an_tx_802_3_status; /* 0x34 */
u_int16_t an_tx_802_3_payload_len;/* 0x36 */
u_int8_t an_tx_dst_addr[6]; /* 0x38 */
u_int8_t an_tx_src_addr[6]; /* 0x3E */
};
#define AN_TXSTAT_EXCESS_RETRY 0x0002
#define AN_TXSTAT_LIFE_EXCEEDED 0x0004
#define AN_TXSTAT_AID_FAIL 0x0008
#define AN_TXSTAT_MAC_DISABLED 0x0010
#define AN_TXSTAT_ASSOC_LOST 0x0020
#define AN_TXCTL_RSVD 0x0001
#define AN_TXCTL_TXOK_INTR 0x0002
#define AN_TXCTL_TXERR_INTR 0x0004
#define AN_TXCTL_HEADER_TYPE 0x0008
#define AN_TXCTL_PAYLOAD_TYPE 0x0010
#define AN_TXCTL_NORELEASE 0x0020
#define AN_TXCTL_NORETRIES 0x0040
#define AN_TXCTL_CLEAR_AID 0x0080
#define AN_TXCTL_STRICT_ORDER 0x0100
#define AN_TXCTL_USE_RTS 0x0200
#define AN_HEADERTYPE_8023 0x0000
#define AN_HEADERTYPE_80211 0x0008
#define AN_PAYLOADTYPE_ETHER 0x0000
#define AN_PAYLOADTYPE_LLC 0x0010
#define AN_TXCTL_80211 \
(AN_TXCTL_TXOK_INTR|AN_TXCTL_TXERR_INTR|AN_HEADERTYPE_80211| \
AN_PAYLOADTYPE_LLC|AN_TXCTL_NORELEASE)
#define AN_TXCTL_8023 \
(AN_TXCTL_TXOK_INTR|AN_TXCTL_TXERR_INTR|AN_HEADERTYPE_8023| \
AN_PAYLOADTYPE_ETHER|AN_TXCTL_NORELEASE)
#define AN_TXGAP_80211 0
#define AN_TXGAP_8023 0
struct an_802_3_hdr {
u_int16_t an_8023_status;
u_int16_t an_8023_payload_len;
u_int8_t an_8023_dst_addr[6];
u_int8_t an_8023_src_addr[6];
u_int16_t an_8023_dat[3]; /* SNAP header */
u_int16_t an_8023_type;
};
struct an_snap_hdr {
u_int16_t an_snap_dat[3]; /* SNAP header */
u_int16_t an_snap_type;
};
struct an_dma_alloc {
u_int32_t an_dma_paddr;
caddr_t an_dma_vaddr;
bus_dmamap_t an_dma_map;
bus_dma_segment_t an_dma_seg;
bus_size_t an_dma_size;
int an_dma_nseg;
};
#define AN_TX_RING_CNT 4
#define AN_INC(x, y) (x) = (x + 1) % y
struct an_tx_ring_data {
u_int16_t an_tx_fids[AN_TX_RING_CNT];
u_int16_t an_tx_ring[AN_TX_RING_CNT];
int an_tx_prod;
int an_tx_cons;
int an_tx_empty;
};
struct an_softc {
struct ifnet *an_ifp;
int an_unit;
int port_rid; /* resource id for port range */
struct resource* port_res; /* resource for port range */
int mem_rid; /* resource id for memory range */
int mem_used; /* nonzero if memory used */
struct resource* mem_res; /* resource for memory range */
int mem_aux_rid; /* resource id for memory range */
int mem_aux_used; /* nonzero if memory used */
struct resource* mem_aux_res; /* resource for memory range */
int irq_rid; /* resource id for irq */
void* irq_handle; /* handle for irq handler */
struct resource* irq_res; /* resource for irq */
bus_space_handle_t an_bhandle_p;
bus_space_handle_t an_bhandle;
bus_space_tag_t an_btag;
bus_space_handle_t an_mem_bhandle;
bus_space_tag_t an_mem_btag;
bus_space_handle_t an_mem_aux_bhandle;
bus_space_tag_t an_mem_aux_btag;
bus_dma_tag_t an_dtag;
struct an_ltv_genconfig an_config;
struct an_ltv_caps an_caps;
struct an_ltv_ssidlist_new an_ssidlist;
struct an_ltv_aplist an_aplist;
struct an_ltv_key an_temp_keys[4];
int an_tx_rate;
int an_rxmode;
int an_gone;
int an_if_flags;
u_int8_t an_txbuf[1536];
struct an_tx_ring_data an_rdata;
struct an_ltv_stats an_stats;
struct an_ltv_status an_status;
u_int8_t an_associated;
#ifdef ANCACHE
int an_sigitems;
struct an_sigcache an_sigcache[MAXANCACHE];
int an_nextitem;
int an_have_rssimap;
struct an_ltv_rssi_map an_rssimap;
#endif
struct callout an_stat_ch;
struct mtx an_mtx;
device_t an_dev;
struct ifmedia an_ifmedia;
int an_monitor;
int an_was_monitor;
u_char buf_802_11[MCLBYTES];
struct an_req areq;
unsigned short* an_flash_buffer;
int mpi350;
struct an_dma_alloc an_rid_buffer;
struct an_dma_alloc an_rx_buffer[AN_MAX_RX_DESC];
struct an_dma_alloc an_tx_buffer[AN_MAX_TX_DESC];
};
#define AN_LOCK(_sc) mtx_lock(&(_sc)->an_mtx)
#define AN_UNLOCK(_sc) mtx_unlock(&(_sc)->an_mtx)
#define AN_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->an_mtx, MA_OWNED)
void an_release_resources (device_t);
int an_alloc_port (device_t, int, int);
int an_alloc_memory (device_t, int, int);
int an_alloc_aux_memory (device_t, int, int);
int an_alloc_irq (device_t, int, int);
int an_probe (device_t);
void an_shutdown (device_t);
void an_resume (device_t);
int an_attach (struct an_softc *, int, int);
int an_detach (device_t);
void an_stop (struct an_softc *);
driver_intr_t an_intr;
#define AN_802_3_OFFSET 0x2E
#define AN_802_11_OFFSET 0x44
#define AN_802_11_OFFSET_RAW 0x3C
#define AN_STAT_BADCRC 0x0001
#define AN_STAT_UNDECRYPTABLE 0x0002
#define AN_STAT_ERRSTAT 0x0003
#define AN_STAT_MAC_PORT 0x0700
#define AN_STAT_1042 0x2000 /* RFC1042 encoded */
#define AN_STAT_TUNNEL 0x4000 /* Bridge-tunnel encoded */
#define AN_STAT_WMP_MSG 0x6000 /* WaveLAN-II management protocol */
#define AN_RXSTAT_MSG_TYPE 0xE000
#define AN_ENC_TX_802_3 0x00
#define AN_ENC_TX_802_11 0x11
#define AN_ENC_TX_E_II 0x0E
#define AN_ENC_TX_1042 0x00
#define AN_ENC_TX_TUNNEL 0xF8
#define AN_TXCNTL_MACPORT 0x00FF
#define AN_TXCNTL_STRUCTTYPE 0xFF00
/*
* SNAP (sub-network access protocol) constants for transmission
* of IP datagrams over IEEE 802 networks, taken from RFC1042.
* We need these for the LLC/SNAP header fields in the TX/RX frame
* structure.
*/
#define AN_SNAP_K1 0xaa /* assigned global SAP for SNAP */
#define AN_SNAP_K2 0x00
#define AN_SNAP_CONTROL 0x03 /* unnumbered information format */
#define AN_SNAP_WORD0 (AN_SNAP_K1 | (AN_SNAP_K1 << 8))
#define AN_SNAP_WORD1 (AN_SNAP_K2 | (AN_SNAP_CONTROL << 8))
#define AN_SNAPHDR_LEN 0x6
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