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iwlwifi: implement iwl_debug_report_frame for iwlagn
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The old version of this code was copied from 3945 and never updated. This patch
cleans up structs that do not apply and accounts for other changes from
3945->iwlagn (e.g., PHY info can come in a separate cmd response from the
ucode.)

Signed-off-by: Daniel Halperin <[email protected]>
Signed-off-by: Reinette Chatre <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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@dhalperi @linvjw
dhalperi authored and linvjw committed Dec 11, 2008
1 parent 0894e49 commit c863e20
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Showing 3 changed files with 31 additions and 105 deletions.
42 changes: 0 additions & 42 deletions drivers/net/wireless/iwlwifi/iwl-commands.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1023,25 +1023,6 @@ struct iwl_wep_cmd {
*
*****************************************************************************/

struct iwl4965_rx_frame_stats {
u8 phy_count;
u8 id;
u8 rssi;
u8 agc;
__le16 sig_avg;
__le16 noise_diff;
u8 payload[0];
} __attribute__ ((packed));

struct iwl4965_rx_frame_hdr {
__le16 channel;
__le16 phy_flags;
u8 reserved1;
u8 rate;
__le16 len;
u8 payload[0];
} __attribute__ ((packed));

#define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0)
#define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1)

Expand Down Expand Up @@ -1072,26 +1053,6 @@ struct iwl4965_rx_frame_hdr {
#define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
#define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)

struct iwl4965_rx_frame_end {
__le32 status;
__le64 timestamp;
__le32 beacon_timestamp;
} __attribute__ ((packed));

/*
* REPLY_3945_RX = 0x1b (response only, not a command)
*
* NOTE: DO NOT dereference from casts to this structure
* It is provided only for calculating minimum data set size.
* The actual offsets of the hdr and end are dynamic based on
* stats.phy_count
*/
struct iwl4965_rx_frame {
struct iwl4965_rx_frame_stats stats;
struct iwl4965_rx_frame_hdr hdr;
struct iwl4965_rx_frame_end end;
} __attribute__ ((packed));

/* Fixed (non-configurable) rx data from phy */

#define IWL49_RX_RES_PHY_CNT 14
Expand Down Expand Up @@ -3049,7 +3010,6 @@ struct iwl_rx_packet {
struct iwl_cmd_header hdr;
union {
struct iwl_alive_resp alive_frame;
struct iwl4965_rx_frame rx_frame;
struct iwl4965_tx_resp tx_resp;
struct iwl4965_spectrum_notification spectrum_notif;
struct iwl4965_csa_notification csa_notif;
Expand All @@ -3068,8 +3028,6 @@ struct iwl_rx_packet {
} u;
} __attribute__ ((packed));

#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl4965_rx_frame))

int iwl_agn_check_rxon_cmd(struct iwl_rxon_cmd *rxon);

#endif /* __iwl_commands_h__ */
9 changes: 0 additions & 9 deletions drivers/net/wireless/iwlwifi/iwl-dev.h
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Original file line number Diff line number Diff line change
Expand Up @@ -553,15 +553,6 @@ struct iwl_hw_params {
#define HT_SHORT_GI_40MHZ (1 << 1)


#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
x->u.rx_frame.stats.payload + \
x->u.rx_frame.stats.phy_count))
#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
IWL_RX_HDR(x)->payload + \
le16_to_cpu(IWL_RX_HDR(x)->len)))
#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)

/******************************************************************************
*
* Functions implemented in core module which are forward declared here
Expand Down
85 changes: 31 additions & 54 deletions drivers/net/wireless/iwlwifi/iwl-rx.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -622,20 +622,24 @@ static int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm)
return sig_qual;
}

#ifdef CONFIG_IWLWIFI_DEBUG
/* Calc max signal level (dBm) among 3 possible receivers */
static inline int iwl_calc_rssi(struct iwl_priv *priv,
struct iwl_rx_phy_res *rx_resp)
{
return priv->cfg->ops->utils->calc_rssi(priv, rx_resp);
}

#ifdef CONFIG_IWLWIFI_DEBUG
/**
* iwl_dbg_report_frame - dump frame to syslog during debug sessions
*
* You may hack this function to show different aspects of received frames,
* including selective frame dumps.
* group100 parameter selects whether to show 1 out of 100 good frames.
*
* TODO: This was originally written for 3945, need to audit for
* proper operation with 4965.
* group100 parameter selects whether to show 1 out of 100 good data frames.
* All beacon and probe response frames are printed.
*/
static void iwl_dbg_report_frame(struct iwl_priv *priv,
struct iwl_rx_packet *pkt,
struct iwl_rx_phy_res *phy_res, u16 length,
struct ieee80211_hdr *header, int group100)
{
u32 to_us;
Expand All @@ -647,20 +651,9 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
u16 seq_ctl;
u16 channel;
u16 phy_flags;
int rate_sym;
u16 length;
u16 status;
u16 bcn_tmr;
u32 rate_n_flags;
u32 tsf_low;
u64 tsf;
u8 rssi;
u8 agc;
u16 sig_avg;
u16 noise_diff;
struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt);
u8 *data = IWL_RX_DATA(pkt);
int rssi;

if (likely(!(priv->debug_level & IWL_DL_RX)))
return;
Expand All @@ -670,22 +663,13 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
seq_ctl = le16_to_cpu(header->seq_ctrl);

/* metadata */
channel = le16_to_cpu(rx_hdr->channel);
phy_flags = le16_to_cpu(rx_hdr->phy_flags);
rate_sym = rx_hdr->rate;
length = le16_to_cpu(rx_hdr->len);

/* end-of-frame status and timestamp */
status = le32_to_cpu(rx_end->status);
bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
tsf = le64_to_cpu(rx_end->timestamp);
channel = le16_to_cpu(phy_res->channel);
phy_flags = le16_to_cpu(phy_res->phy_flags);
rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);

/* signal statistics */
rssi = rx_stats->rssi;
agc = rx_stats->agc;
sig_avg = le16_to_cpu(rx_stats->sig_avg);
noise_diff = le16_to_cpu(rx_stats->noise_diff);
rssi = iwl_calc_rssi(priv, phy_res);
tsf_low = le64_to_cpu(phy_res->timestamp) & 0x0ffffffff;

to_us = !compare_ether_addr(header->addr1, priv->mac_addr);

Expand Down Expand Up @@ -739,11 +723,13 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
else
title = "Frame";

rate_idx = iwl_hwrate_to_plcp_idx(rate_sym);
if (unlikely(rate_idx == -1))
rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags);
if (unlikely((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT))) {
bitrate = 0;
else
WARN_ON_ONCE(1);
} else {
bitrate = iwl_rates[rate_idx].ieee / 2;
}

/* print frame summary.
* MAC addresses show just the last byte (for brevity),
Expand All @@ -755,23 +741,22 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
length, rssi, channel, bitrate);
else {
/* src/dst addresses assume managed mode */
IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
"src=0x%02x, rssi=%u, tim=%lu usec, "
IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, src=0x%02x, "
"len=%u, rssi=%d, tim=%lu usec, "
"phy=0x%02x, chnl=%d\n",
title, le16_to_cpu(fc), header->addr1[5],
header->addr3[5], rssi,
header->addr3[5], length, rssi,
tsf_low - priv->scan_start_tsf,
phy_flags, channel);
}
}
if (print_dump)
iwl_print_hex_dump(priv, IWL_DL_RX, data, length);
iwl_print_hex_dump(priv, IWL_DL_RX, header, length);
}
#else
static inline void iwl_dbg_report_frame(struct iwl_priv *priv,
struct iwl_rx_packet *pkt,
struct ieee80211_hdr *header,
int group100)
static void iwl_dbg_report_frame(struct iwl_priv *priv,
struct iwl_rx_phy_res *phy_res, u16 length,
struct ieee80211_hdr *header, int group100)
{
}
#endif
Expand Down Expand Up @@ -966,14 +951,6 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
rxb->skb = NULL;
}

/* Calc max signal level (dBm) among 3 possible receivers */
static inline int iwl_calc_rssi(struct iwl_priv *priv,
struct iwl_rx_phy_res *rx_resp)
{
return priv->cfg->ops->utils->calc_rssi(priv, rx_resp);
}


/* This is necessary only for a number of statistics, see the caller. */
static int iwl_is_network_packet(struct iwl_priv *priv,
struct ieee80211_hdr *header)
Expand Down Expand Up @@ -1096,8 +1073,8 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;

/* Set "1" to report good data frames in groups of 100 */
/* FIXME: need to optimize the call: */
iwl_dbg_report_frame(priv, pkt, header, 1);
if (unlikely(priv->debug_level & IWL_DL_RX))
iwl_dbg_report_frame(priv, rx_start, len, header, 1);

IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n",
rx_status.signal, rx_status.noise, rx_status.signal,
Expand Down

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