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Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6

Browse Source
This commit is contained in:
John W. Linville 2011-05-16 14:21:02 -04:00
commit f51f87a091
24 changed files with 712 additions and 469 deletions
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4
drivers/net/wireless/iwlwifi/iwl-1000.c
View File

@ -171,10 +171,6 @@ static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
static struct iwl_lib_ops iwl1000_lib = {
.set_hw_params = iwl1000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_setup_deferred_work,
.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,

8
drivers/net/wireless/iwlwifi/iwl-2000.c
View File

@ -195,9 +195,9 @@ static int iwl2030_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_vif *vif = ctx->vif;
struct iwl_host_cmd hcmd = {
.id = REPLY_CHANNEL_SWITCH,
.len = sizeof(cmd),
.len = { sizeof(cmd), },
.flags = CMD_SYNC,
.data = &cmd,
.data = { &cmd, },
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
@ -252,10 +252,6 @@ static int iwl2030_hw_channel_switch(struct iwl_priv *priv,
static struct iwl_lib_ops iwl2000_lib = {
.set_hw_params = iwl2000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_bt_setup_deferred_work,
.cancel_deferred_work = iwlagn_bt_cancel_deferred_work,

12
drivers/net/wireless/iwlwifi/iwl-5000.c
View File

@ -282,9 +282,9 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_vif *vif = ctx->vif;
struct iwl_host_cmd hcmd = {
.id = REPLY_CHANNEL_SWITCH,
.len = sizeof(cmd),
.len = { sizeof(cmd), },
.flags = CMD_SYNC,
.data = &cmd,
.data = { &cmd, },
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
@ -339,10 +339,6 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
static struct iwl_lib_ops iwl5000_lib = {
.set_hw_params = iwl5000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_setup_deferred_work,
.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
@ -374,10 +370,6 @@ static struct iwl_lib_ops iwl5000_lib = {
static struct iwl_lib_ops iwl5150_lib = {
.set_hw_params = iwl5150_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_setup_deferred_work,
.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,

12
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -221,9 +221,9 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_vif *vif = ctx->vif;
struct iwl_host_cmd hcmd = {
.id = REPLY_CHANNEL_SWITCH,
.len = sizeof(cmd),
.len = { sizeof(cmd), },
.flags = CMD_SYNC,
.data = &cmd,
.data = { &cmd, },
};
cmd.band = priv->band == IEEE80211_BAND_2GHZ;
@ -278,10 +278,6 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
static struct iwl_lib_ops iwl6000_lib = {
.set_hw_params = iwl6000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_rx_handler_setup,
.setup_deferred_work = iwlagn_setup_deferred_work,
.is_valid_rtc_data_addr = iwlagn_hw_valid_rtc_data_addr,
@ -314,10 +310,6 @@ static struct iwl_lib_ops iwl6000_lib = {
static struct iwl_lib_ops iwl6030_lib = {
.set_hw_params = iwl6000_hw_set_hw_params,
.txq_set_sched = iwlagn_txq_set_sched,
.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
.txq_free_tfd = iwl_hw_txq_free_tfd,
.txq_init = iwl_hw_tx_queue_init,
.rx_handler_setup = iwlagn_bt_rx_handler_setup,
.setup_deferred_work = iwlagn_bt_setup_deferred_work,
.cancel_deferred_work = iwlagn_bt_cancel_deferred_work,

14
drivers/net/wireless/iwlwifi/iwl-agn-calib.c
View File

@ -87,14 +87,14 @@ int iwl_send_calib_results(struct iwl_priv *priv)
struct iwl_host_cmd hcmd = {
.id = REPLY_PHY_CALIBRATION_CMD,
.flags = CMD_SIZE_HUGE,
};
for (i = 0; i < IWL_CALIB_MAX; i++) {
if ((BIT(i) & priv->hw_params.calib_init_cfg) &&
priv->calib_results[i].buf) {
hcmd.len = priv->calib_results[i].buf_len;
hcmd.data = priv->calib_results[i].buf;
hcmd.len[0] = priv->calib_results[i].buf_len;
hcmd.data[0] = priv->calib_results[i].buf;
hcmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
ret = iwl_send_cmd_sync(priv, &hcmd);
if (ret) {
IWL_ERR(priv, "Error %d iteration %d\n",
@ -456,9 +456,9 @@ static int iwl_sensitivity_write(struct iwl_priv *priv)
struct iwl_sensitivity_data *data = NULL;
struct iwl_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
.len = sizeof(struct iwl_sensitivity_cmd),
.len = { sizeof(struct iwl_sensitivity_cmd), },
.flags = CMD_ASYNC,
.data = &cmd,
.data = { &cmd, },
};
data = &(priv->sensitivity_data);
@ -491,9 +491,9 @@ static int iwl_enhance_sensitivity_write(struct iwl_priv *priv)
struct iwl_sensitivity_data *data = NULL;
struct iwl_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
.len = sizeof(struct iwl_enhance_sensitivity_cmd),
.len = { sizeof(struct iwl_enhance_sensitivity_cmd), },
.flags = CMD_ASYNC,
.data = &cmd,
.data = { &cmd, },
};
data = &(priv->sensitivity_data);

14
drivers/net/wireless/iwlwifi/iwl-agn-lib.c
View File

@ -1140,8 +1140,7 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
{
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_CMD,
.len = sizeof(struct iwl_scan_cmd),
.flags = CMD_SIZE_HUGE,
.len = { sizeof(struct iwl_scan_cmd), },
};
struct iwl_scan_cmd *scan;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
@ -1425,10 +1424,11 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
return -EIO;
}
cmd.len += le16_to_cpu(scan->tx_cmd.len) +
cmd.len[0] += le16_to_cpu(scan->tx_cmd.len) +
scan->channel_count * sizeof(struct iwl_scan_channel);
cmd.data = scan;
scan->len = cpu_to_le16(cmd.len);
cmd.data[0] = scan;
cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
scan->len = cpu_to_le16(cmd.len[0]);
/* set scan bit here for PAN params */
set_bit(STATUS_SCAN_HW, &priv->status);
@ -1520,9 +1520,9 @@ int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control)
struct iwl_txfifo_flush_cmd flush_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_TXFIFO_FLUSH,
.len = sizeof(struct iwl_txfifo_flush_cmd),
.len = { sizeof(struct iwl_txfifo_flush_cmd), },
.flags = CMD_SYNC,
.data = &flush_cmd,
.data = { &flush_cmd, },
};
might_sleep();

86
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View File

@ -335,6 +335,32 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
return tid;
}
#if defined(CONFIG_MAC80211_DEBUGFS) || defined(CONFIG_IWLWIFI_DEVICE_SVTOOL)
static void rs_program_fix_rate(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta)
{
struct iwl_station_priv *sta_priv =
container_of(lq_sta, struct iwl_station_priv, lq_sta);
struct iwl_rxon_context *ctx = sta_priv->common.ctx;
lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->dbg_fixed_rate = priv->dbg_fixed_rate;
IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
lq_sta->lq.sta_id, priv->dbg_fixed_rate);
if (priv->dbg_fixed_rate) {
rs_fill_link_cmd(NULL, lq_sta, priv->dbg_fixed_rate);
iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
false);
}
}
#endif
/*
get the traffic load value for tid
*/
@ -1046,7 +1072,10 @@ done:
/* See if there's a better rate or modulation mode to try. */
if (sta && sta->supp_rates[sband->band])
rs_rate_scale_perform(priv, skb, sta, lq_sta);
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
if (priv->dbg_fixed_rate != lq_sta->dbg_fixed_rate)
rs_program_fix_rate(priv, lq_sta);
#endif
if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
rs_bt_update_lq(priv, ctx, lq_sta);
}
@ -2170,11 +2199,11 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
* setup rate table in uCode
* return rate_n_flags as used in the table
*/
static u32 rs_update_rate_tbl(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl,
int index, u8 is_green)
static void rs_update_rate_tbl(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl,
int index, u8 is_green)
{
u32 rate;
@ -2182,8 +2211,6 @@ static u32 rs_update_rate_tbl(struct iwl_priv *priv,
rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
rs_fill_link_cmd(priv, lq_sta, rate);
iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
return rate;
}
/*
@ -2212,7 +2239,6 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
u8 update_lq = 0;
struct iwl_scale_tbl_info *tbl, *tbl1;
u16 rate_scale_index_msk = 0;
u32 rate;
u8 is_green = 0;
u8 active_tbl = 0;
u8 done_search = 0;
@ -2299,8 +2325,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
/* get "active" rate info */
index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
rate = rs_update_rate_tbl(priv, ctx, lq_sta,
tbl, index, is_green);
rs_update_rate_tbl(priv, ctx, lq_sta, tbl,
index, is_green);
}
return;
}
@ -2541,8 +2567,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
lq_update:
/* Replace uCode's rate table for the destination station. */
if (update_lq)
rate = rs_update_rate_tbl(priv, ctx, lq_sta,
tbl, index, is_green);
rs_update_rate_tbl(priv, ctx, lq_sta, tbl, index, is_green);
if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI) {
/* Should we stay with this modulation mode,
@ -2871,6 +2896,7 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
lq_sta->is_agg = 0;
priv->dbg_fixed_rate = 0;
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->dbg_fixed_rate = 0;
#endif
@ -3045,7 +3071,6 @@ static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
IWL_DEBUG_RATE(priv, "leave\n");
}
#ifdef CONFIG_MAC80211_DEBUGFS
static int open_file_generic(struct inode *inode, struct file *file)
{
@ -3070,6 +3095,7 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
} else {
lq_sta->dbg_fixed_rate = 0;
priv->dbg_fixed_rate = 0;
IWL_ERR(priv,
"Invalid antenna selection 0x%X, Valid is 0x%X\n",
ant_sel_tx, valid_tx_ant);
@ -3088,9 +3114,7 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
char buf[64];
size_t buf_size;
u32 parsed_rate;
struct iwl_station_priv *sta_priv =
container_of(lq_sta, struct iwl_station_priv, lq_sta);
struct iwl_rxon_context *ctx = sta_priv->common.ctx;
priv = lq_sta->drv;
memset(buf, 0, sizeof(buf));
@ -3099,23 +3123,11 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
return -EFAULT;
if (sscanf(buf, "%x", &parsed_rate) == 1)
lq_sta->dbg_fixed_rate = parsed_rate;
priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = parsed_rate;
else
lq_sta->dbg_fixed_rate = 0;
priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = 0;
lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
if (lq_sta->dbg_fixed_rate) {
rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
false);
}
rs_program_fix_rate(priv, lq_sta);
return count;
}
@ -3143,7 +3155,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
lq_sta->total_failed, lq_sta->total_success,
lq_sta->active_legacy_rate);
desc += sprintf(buff+desc, "fixed rate 0x%X\n",
lq_sta->dbg_fixed_rate);
priv->dbg_fixed_rate);
desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
(priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
(priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",
@ -3254,15 +3266,11 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct iwl_lq_sta *lq_sta = file->private_data;
struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
char buff[120];
int desc = 0;
struct iwl_lq_sta *lq_sta = file->private_data;
struct iwl_priv *priv;
struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
priv = lq_sta->drv;
if (is_Ht(tbl->lq_type))
desc += sprintf(buff+desc,
"Bit Rate= %d Mb/s\n",

9
drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
View File

@ -289,7 +289,6 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
/* cast away the const for active_rxon in this function */
struct iwl_rxon_cmd *active = (void *)&ctx->active;
bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
bool old_assoc = !!(ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK);
int ret;
lockdep_assert_held(&priv->mutex);
@ -389,11 +388,9 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
* AP station must be done after the BSSID is set to correctly
* set up filters in the device.
*/
if ((old_assoc && new_assoc) || !new_assoc) {
ret = iwlagn_rxon_disconn(priv, ctx);
if (ret)
return ret;
}
ret = iwlagn_rxon_disconn(priv, ctx);
if (ret)
return ret;
if (new_assoc)
return iwlagn_rxon_connect(priv, ctx);

4
drivers/net/wireless/iwlwifi/iwl-agn-sta.c
View File

@ -144,7 +144,7 @@ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv,
size_t cmd_size = sizeof(struct iwl_wep_cmd);
struct iwl_host_cmd cmd = {
.id = ctx->wep_key_cmd,
.data = wep_cmd,
.data = { wep_cmd, },
.flags = CMD_SYNC,
};
@ -172,7 +172,7 @@ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv,
cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX;
cmd.len = cmd_size;
cmd.len[0] = cmd_size;
if (not_empty || send_if_empty)
return iwl_send_cmd(priv, &cmd);

16
drivers/net/wireless/iwlwifi/iwl-agn-tx.c
View File

@ -750,12 +750,10 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
spin_unlock(&priv->sta_lock);
/* Attach buffers to TFD */
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
txcmd_phys, firstlen, 1, 0);
iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1);
if (secondlen > 0)
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
phys_addr, secondlen,
0, 0);
iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr,
secondlen, 0);
scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
offsetof(struct iwl_tx_cmd, scratch);
@ -911,7 +909,7 @@ int iwlagn_txq_ctx_alloc(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
/* Turn off all Tx DMA fifos */
priv->cfg->ops->lib->txq_set_sched(priv, 0);
iwlagn_txq_set_sched(priv, 0);
/* Tell NIC where to find the "keep warm" buffer */
iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
@ -949,7 +947,7 @@ void iwlagn_txq_ctx_reset(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
/* Turn off all Tx DMA fifos */
priv->cfg->ops->lib->txq_set_sched(priv, 0);
iwlagn_txq_set_sched(priv, 0);
/* Tell NIC where to find the "keep warm" buffer */
iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
@ -975,7 +973,7 @@ void iwlagn_txq_ctx_stop(struct iwl_priv *priv)
/* Turn off all Tx DMA fifos */
spin_lock_irqsave(&priv->lock, flags);
priv->cfg->ops->lib->txq_set_sched(priv, 0);
iwlagn_txq_set_sched(priv, 0);
/* Stop each Tx DMA channel, and wait for it to be idle */
for (ch = 0; ch < priv->hw_params.dma_chnl_num; ch++) {
@ -1258,7 +1256,7 @@ int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
iwlagn_txq_inval_byte_cnt_tbl(priv, txq);
priv->cfg->ops->lib->txq_free_tfd(priv, txq);
iwlagn_txq_free_tfd(priv, txq);
}
return nfreed;
}

6
drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
View File

@ -217,8 +217,8 @@ static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
struct iwl_calib_cfg_cmd calib_cfg_cmd;
struct iwl_host_cmd cmd = {
.id = CALIBRATION_CFG_CMD,
.len = sizeof(struct iwl_calib_cfg_cmd),
.data = &calib_cfg_cmd,
.len = { sizeof(struct iwl_calib_cfg_cmd), },
.data = { &calib_cfg_cmd, },
};
memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
@ -440,7 +440,7 @@ static int iwlagn_alive_notify(struct iwl_priv *priv)
IWL_MASK(0, priv->hw_params.max_txq_num));
/* Activate all Tx DMA/FIFO channels */
priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
iwlagn_txq_set_sched(priv, IWL_MASK(0, 7));
/* map queues to FIFOs */
if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))

244
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -134,12 +134,10 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
struct iwl_tx_beacon_cmd *tx_beacon_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_TX_BEACON,
.flags = CMD_SIZE_HUGE,
};
u32 frame_size;
u32 rate_flags;
u32 rate;
int err;
/*
* We have to set up the TX command, the TX Beacon command, and the
@ -156,17 +154,15 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
if (WARN_ON(!priv->beacon_skb))
return -EINVAL;
/* Allocate beacon memory */
tx_beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd) + priv->beacon_skb->len,
GFP_KERNEL);
/* Allocate beacon command */
if (!priv->beacon_cmd)
priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
tx_beacon_cmd = priv->beacon_cmd;
if (!tx_beacon_cmd)
return -ENOMEM;
frame_size = priv->beacon_skb->len;
/* Set up TX beacon contents */
memcpy(tx_beacon_cmd->frame, priv->beacon_skb->data, frame_size);
/* Set up TX command fields */
tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
@ -175,7 +171,7 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
/* Set up TX beacon command fields */
iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame,
iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
frame_size);
/* Set up packet rate and flags */
@ -189,164 +185,14 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
rate_flags);
/* Submit command */
cmd.len = sizeof(*tx_beacon_cmd) + frame_size;
cmd.data = tx_beacon_cmd;
cmd.len[0] = sizeof(*tx_beacon_cmd);
cmd.data[0] = tx_beacon_cmd;
cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
cmd.len[1] = frame_size;
cmd.data[1] = priv->beacon_skb->data;
cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
err = iwl_send_cmd_sync(priv, &cmd);
/* Free temporary storage */
kfree(tx_beacon_cmd);
return err;
}
static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
dma_addr_t addr = get_unaligned_le32(&tb->lo);
if (sizeof(dma_addr_t) > sizeof(u32))
addr |=
((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
return addr;
}
static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
return le16_to_cpu(tb->hi_n_len) >> 4;
}
static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
dma_addr_t addr, u16 len)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
u16 hi_n_len = len << 4;
put_unaligned_le32(addr, &tb->lo);
if (sizeof(dma_addr_t) > sizeof(u32))
hi_n_len |= ((addr >> 16) >> 16) & 0xF;
tb->hi_n_len = cpu_to_le16(hi_n_len);
tfd->num_tbs = idx + 1;
}
static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
{
return tfd->num_tbs & 0x1f;
}
/**
* iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
* @priv - driver private data
* @txq - tx queue
*
* Does NOT advance any TFD circular buffer read/write indexes
* Does NOT free the TFD itself (which is within circular buffer)
*/
void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
struct iwl_tfd *tfd;
struct pci_dev *dev = priv->pci_dev;
int index = txq->q.read_ptr;
int i;
int num_tbs;
tfd = &tfd_tmp[index];
/* Sanity check on number of chunks */
num_tbs = iwl_tfd_get_num_tbs(tfd);
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
/* @todo issue fatal error, it is quite serious situation */
return;
}
/* Unmap tx_cmd */
if (num_tbs)
pci_unmap_single(dev,
dma_unmap_addr(&txq->meta[index], mapping),
dma_unmap_len(&txq->meta[index], len),
PCI_DMA_BIDIRECTIONAL);
/* Unmap chunks, if any. */
for (i = 1; i < num_tbs; i++)
pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
/* free SKB */
if (txq->txb) {
struct sk_buff *skb;
skb = txq->txb[txq->q.read_ptr].skb;
/* can be called from irqs-disabled context */
if (skb) {
dev_kfree_skb_any(skb);
txq->txb[txq->q.read_ptr].skb = NULL;
}
}
}
int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len,
u8 reset, u8 pad)
{
struct iwl_queue *q;
struct iwl_tfd *tfd, *tfd_tmp;
u32 num_tbs;
q = &txq->q;
tfd_tmp = (struct iwl_tfd *)txq->tfds;
tfd = &tfd_tmp[q->write_ptr];
if (reset)
memset(tfd, 0, sizeof(*tfd));
num_tbs = iwl_tfd_get_num_tbs(tfd);
/* Each TFD can point to a maximum 20 Tx buffers */
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(priv, "Error can not send more than %d chunks\n",
IWL_NUM_OF_TBS);
return -EINVAL;
}
if (WARN_ON(addr & ~DMA_BIT_MASK(36)))
return -EINVAL;
if (unlikely(addr & ~IWL_TX_DMA_MASK))
IWL_ERR(priv, "Unaligned address = %llx\n",
(unsigned long long)addr);
iwl_tfd_set_tb(tfd, num_tbs, addr, len);
return 0;
}
/*
* Tell nic where to find circular buffer of Tx Frame Descriptors for
* given Tx queue, and enable the DMA channel used for that queue.
*
* supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
* channels supported in hardware.
*/
int iwl_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq)
{
int txq_id = txq->q.id;
/* Circular buffer (TFD queue in DRAM) physical base address */
iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
txq->q.dma_addr >> 8);
return 0;
return iwl_send_cmd_sync(priv, &cmd);
}
static void iwl_bg_beacon_update(struct work_struct *work)
@ -1776,10 +1622,7 @@ static const char *desc_lookup(u32 num)
void iwl_dump_nic_error_log(struct iwl_priv *priv)
{
u32 data2, line;
u32 desc, time, count, base, data1;
u32 blink1, blink2, ilink1, ilink2;
u32 pc, hcmd;
u32 base;
struct iwl_error_event_table table;
base = priv->device_pointers.error_event_table;
@ -1802,37 +1645,40 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
iwl_read_targ_mem_words(priv, base, &table, sizeof(table));
count = table.valid;
if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
IWL_ERR(priv, "Start IWL Error Log Dump:\n");
IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
priv->status, count);
priv->status, table.valid);
}
desc = table.error_id;
priv->isr_stats.err_code = desc;
pc = table.pc;
blink1 = table.blink1;
blink2 = table.blink2;
ilink1 = table.ilink1;
ilink2 = table.ilink2;
data1 = table.data1;
data2 = table.data2;
line = table.line;
time = table.tsf_low;
hcmd = table.hcmd;
priv->isr_stats.err_code = table.error_id;
trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
blink1, blink2, ilink1, ilink2);
IWL_ERR(priv, "Desc Time "
"data1 data2 line\n");
IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
desc_lookup(desc), desc, time, data1, data2, line);
IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
pc, blink1, blink2, ilink1, ilink2, hcmd);
trace_iwlwifi_dev_ucode_error(priv, table.error_id, table.tsf_low,
table.data1, table.data2, table.line,
table.blink1, table.blink2, table.ilink1,
table.ilink2, table.bcon_time, table.gp1,
table.gp2, table.gp3, table.ucode_ver,
table.hw_ver, table.brd_ver);
IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
desc_lookup(table.error_id));
IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
IWL_ERR(priv, "0x%08X | data1\n", table.data1);
IWL_ERR(priv, "0x%08X | data2\n", table.data2);
IWL_ERR(priv, "0x%08X | line\n", table.line);
IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
}
#define EVENT_START_OFFSET (4 * sizeof(u32))
@ -2114,8 +1960,8 @@ static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
struct iwl_calib_cfg_cmd calib_cfg_cmd;
struct iwl_host_cmd cmd = {
.id = CALIBRATION_CFG_CMD,
.len = sizeof(struct iwl_calib_cfg_cmd),
.data = &calib_cfg_cmd,
.len = { sizeof(struct iwl_calib_cfg_cmd), },
.data = { &calib_cfg_cmd, },
};
memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
@ -3395,6 +3241,7 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
iwlcore_free_geos(priv);
iwl_free_channel_map(priv);
kfree(priv->scan_cmd);
kfree(priv->beacon_cmd);
}
struct ieee80211_ops iwlagn_hw_ops = {
@ -3812,6 +3659,7 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
*/
set_bit(STATUS_EXIT_PENDING, &priv->status);
iwl_testmode_cleanup(priv);
iwl_leds_exit(priv);
if (priv->mac80211_registered) {

13
drivers/net/wireless/iwlwifi/iwl-agn.h
View File

@ -191,12 +191,10 @@ int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
void iwl_setup_rx_handlers(struct iwl_priv *priv);
/* tx */
void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len, u8 reset, u8 pad);
int iwl_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
dma_addr_t addr, u16 len, u8 reset);
void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
@ -345,6 +343,7 @@ extern int iwl_alive_start(struct iwl_priv *priv);
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
extern int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len);
extern void iwl_testmode_init(struct iwl_priv *priv);
extern void iwl_testmode_cleanup(struct iwl_priv *priv);
#else
static inline
int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
@ -355,6 +354,10 @@ static inline
void iwl_testmode_init(struct iwl_priv *priv)
{
}
static inline
void iwl_testmode_cleanup(struct iwl_priv *priv)
{
}
#endif
#endif /* __iwl_agn_h__ */

5
drivers/net/wireless/iwlwifi/iwl-commands.h
View File

@ -205,7 +205,6 @@ enum {
#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
#define SEQ_TO_INDEX(s) ((s) & 0xff)
#define INDEX_TO_SEQ(i) ((i) & 0xff)
#define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
#define SEQ_RX_FRAME cpu_to_le16(0x8000)
/**
@ -234,9 +233,7 @@ struct iwl_cmd_header {
*
* 0:7 tfd index - position within TX queue
* 8:12 TX queue id
* 13 reserved
* 14 huge - driver sets this to indicate command is in the
* 'huge' storage at the end of the command buffers
* 13:14 reserved
* 15 unsolicited RX or uCode-originated notification
*/
__le16 sequence;

10
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -127,16 +127,6 @@ struct iwl_temp_ops {
struct iwl_lib_ops {
/* set hw dependent parameters */
int (*set_hw_params)(struct iwl_priv *priv);
/* Handling TX */
void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr,
u16 len, u8 reset, u8 pad);
void (*txq_free_tfd)(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
int (*txq_init)(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
/* setup Rx handler */
void (*rx_handler_setup)(struct iwl_priv *priv);
/* setup deferred work */

66
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -48,8 +48,6 @@
#include "iwl-agn-rs.h"
#include "iwl-agn-tt.h"
#define U32_PAD(n) ((4-(n))&0x3)
struct iwl_tx_queue;
/* CT-KILL constants */
@ -83,7 +81,7 @@ struct iwl_tx_queue;
#define MAX_RTS_THRESHOLD 2347U
#define MAX_MSDU_SIZE 2304U
#define MAX_MPDU_SIZE 2346U
#define DEFAULT_BEACON_INTERVAL 100U
#define DEFAULT_BEACON_INTERVAL 200U
#define DEFAULT_SHORT_RETRY_LIMIT 7U
#define DEFAULT_LONG_RETRY_LIMIT 4U
@ -112,8 +110,6 @@ struct iwl_cmd_meta {
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
/* The CMD_SIZE_HUGE flag bit indicates that the command
* structure is stored at the end of the shared queue memory. */
u32 flags;
DEFINE_DMA_UNMAP_ADDR(mapping);
@ -123,7 +119,23 @@ struct iwl_cmd_meta {
/*
* Generic queue structure
*
* Contains common data for Rx and Tx queues
* Contains common data for Rx and Tx queues.
*
* Note the difference between n_bd and n_window: the hardware
* always assumes 256 descriptors, so n_bd is always 256 (unless
* there might be HW changes in the future). For the normal TX
* queues, n_window, which is the size of the software queue data
* is also 256; however, for the command queue, n_window is only
* 32 since we don't need so many commands pending. Since the HW
* still uses 256 BDs for DMA though, n_bd stays 256. As a result,
* the software buffers (in the variables @meta, @txb in struct
* iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
* in the same struct) have 256.
* This means that we end up with the following:
* HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
* SW entries: | 0 | ... | 31 |
* where N is a number between 0 and 7. This means that the SW
* data is a window overlayed over the HW queue.
*/
struct iwl_queue {
int n_bd; /* number of BDs in this queue */
@ -165,7 +177,7 @@ struct iwl_tx_info {
struct iwl_tx_queue {
struct iwl_queue q;
void *tfds;
struct iwl_tfd *tfds;
struct iwl_device_cmd **cmd;
struct iwl_cmd_meta *meta;
struct iwl_tx_info *txb;
@ -247,7 +259,6 @@ enum {
CMD_SYNC = 0,
CMD_SIZE_NORMAL = 0,
CMD_NO_SKB = 0,
CMD_SIZE_HUGE = (1 << 0),
CMD_ASYNC = (1 << 1),
CMD_WANT_SKB = (1 << 2),
CMD_MAPPED = (1 << 3),
@ -259,8 +270,8 @@ enum {
* struct iwl_device_cmd
*
* For allocation of the command and tx queues, this establishes the overall
* size of the largest command we send to uCode, except for a scan command
* (which is relatively huge; space is allocated separately).
* size of the largest command we send to uCode, except for commands that
* aren't fully copied and use other TFD space.
*/
struct iwl_device_cmd {
struct iwl_cmd_header hdr; /* uCode API */
@ -277,15 +288,21 @@ struct iwl_device_cmd {
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
#define IWL_MAX_CMD_TFDS 2
enum iwl_hcmd_dataflag {
IWL_HCMD_DFL_NOCOPY = BIT(0),
};
struct iwl_host_cmd {
const void *data;
const void *data[IWL_MAX_CMD_TFDS];
unsigned long reply_page;
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
u32 flags;
u16 len;
u16 len[IWL_MAX_CMD_TFDS];
u8 dataflags[IWL_MAX_CMD_TFDS];
u8 id;
};
@ -688,17 +705,8 @@ static inline int iwl_queue_used(const struct iwl_queue *q, int i)
}
static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
{
/*
* This is for init calibration result and scan command which
* required buffer > TFD_MAX_PAYLOAD_SIZE,
* the big buffer at end of command array
*/
if (is_huge)
return q->n_window; /* must be power of 2 */
/* Otherwise, use normal size buffers */
return index & (q->n_window - 1);
}
@ -1171,6 +1179,14 @@ enum iwl_scan_type {
IWL_SCAN_OFFCH_TX,
};
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
struct iwl_testmode_trace {
u8 *cpu_addr;
u8 *trace_addr;
dma_addr_t dma_addr;
bool trace_enabled;
};
#endif
struct iwl_priv {
/* ieee device used by generic ieee processing code */
@ -1452,6 +1468,7 @@ struct iwl_priv {
struct work_struct beacon_update;
struct iwl_rxon_context *beacon_ctx;
struct sk_buff *beacon_skb;
void *beacon_cmd;
struct work_struct tt_work;
struct work_struct ct_enter;
@ -1501,6 +1518,11 @@ struct iwl_priv {
struct led_classdev led;
unsigned long blink_on, blink_off;
bool led_registered;
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
struct iwl_testmode_trace testmode_trace;
#endif
u32 dbg_fixed_rate;
}; /*iwl_priv */
static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)

58
drivers/net/wireless/iwlwifi/iwl-devtrace.h
View File

@ -137,20 +137,27 @@ TRACE_EVENT(iwlwifi_dev_ucode_wrap_event,
#define TRACE_SYSTEM iwlwifi
TRACE_EVENT(iwlwifi_dev_hcmd,
TP_PROTO(struct iwl_priv *priv, void *hcmd, size_t len, u32 flags),
TP_ARGS(priv, hcmd, len, flags),
TP_PROTO(struct iwl_priv *priv, u32 flags,
const void *hcmd0, size_t len0,
const void *hcmd1, size_t len1,
const void *hcmd2, size_t len2),
TP_ARGS(priv, flags, hcmd0, len0, hcmd1, len1, hcmd2, len2),
TP_STRUCT__entry(
PRIV_ENTRY
__dynamic_array(u8, hcmd, len)
__dynamic_array(u8, hcmd0, len0)
__dynamic_array(u8, hcmd1, len1)
__dynamic_array(u8, hcmd2, len2)
__field(u32, flags)
),
TP_fast_assign(
PRIV_ASSIGN;
memcpy(__get_dynamic_array(hcmd), hcmd, len);
memcpy(__get_dynamic_array(hcmd0), hcmd0, len0);
memcpy(__get_dynamic_array(hcmd1), hcmd1, len1);
memcpy(__get_dynamic_array(hcmd2), hcmd2, len2);
__entry->flags = flags;
),
TP_printk("[%p] hcmd %#.2x (%ssync)",
__entry->priv, ((u8 *)__get_dynamic_array(hcmd))[0],
__entry->priv, ((u8 *)__get_dynamic_array(hcmd0))[0],
__entry->flags & CMD_ASYNC ? "a" : "")
);
@ -202,15 +209,18 @@ TRACE_EVENT(iwlwifi_dev_tx,
);
TRACE_EVENT(iwlwifi_dev_ucode_error,
TP_PROTO(struct iwl_priv *priv, u32 desc, u32 time,
TP_PROTO(struct iwl_priv *priv, u32 desc, u32 tsf_low,
u32 data1, u32 data2, u32 line, u32 blink1,
u32 blink2, u32 ilink1, u32 ilink2),
TP_ARGS(priv, desc, time, data1, data2, line,
blink1, blink2, ilink1, ilink2),
u32 blink2, u32 ilink1, u32 ilink2, u32 bcon_time,
u32 gp1, u32 gp2, u32 gp3, u32 ucode_ver, u32 hw_ver,
u32 brd_ver),
TP_ARGS(priv, desc, tsf_low, data1, data2, line,
blink1, blink2, ilink1, ilink2, bcon_time, gp1, gp2,
gp3, ucode_ver, hw_ver, brd_ver),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, desc)
__field(u32, time)
__field(u32, tsf_low)
__field(u32, data1)
__field(u32, data2)
__field(u32, line)
@ -218,11 +228,18 @@ TRACE_EVENT(iwlwifi_dev_ucode_error,
__field(u32, blink2)
__field(u32, ilink1)
__field(u32, ilink2)
__field(u32, bcon_time)
__field(u32, gp1)
__field(u32, gp2)
__field(u32, gp3)
__field(u32, ucode_ver)
__field(u32, hw_ver)
__field(u32, brd_ver)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->desc = desc;
__entry->time = time;
__entry->tsf_low = tsf_low;
__entry->data1 = data1;
__entry->data2 = data2;
__entry->line = line;
@ -230,12 +247,25 @@ TRACE_EVENT(iwlwifi_dev_ucode_error,
__entry->blink2 = blink2;
__entry->ilink1 = ilink1;
__entry->ilink2 = ilink2;
__entry->bcon_time = bcon_time;
__entry->gp1 = gp1;
__entry->gp2 = gp2;
__entry->gp3 = gp3;
__entry->ucode_ver = ucode_ver;
__entry->hw_ver = hw_ver;
__entry->brd_ver = brd_ver;
),
TP_printk("[%p] #%02d %010u data 0x%08X 0x%08X line %u, "
"blink 0x%05X 0x%05X ilink 0x%05X 0x%05X",
__entry->priv, __entry->desc, __entry->time, __entry->data1,
"blink 0x%05X 0x%05X ilink 0x%05X 0x%05X "
"bcon_tm %010u gp 0x%08X 0x%08X 0x%08X uCode 0x%08X "
"hw 0x%08X brd 0x%08X",
__entry->priv, __entry->desc, __entry->tsf_low,
__entry->data1,
__entry->data2, __entry->line, __entry->blink1,
__entry->blink2, __entry->ilink1, __entry->ilink2)
__entry->blink2, __entry->ilink1, __entry->ilink2,
__entry->bcon_time, __entry->gp1, __entry->gp2,
__entry->gp3, __entry->ucode_ver, __entry->hw_ver,
__entry->brd_ver)
);
TRACE_EVENT(iwlwifi_dev_ucode_event,

7
drivers/net/wireless/iwlwifi/iwl-eeprom.c
View File

@ -216,15 +216,14 @@ static int iwl_eeprom_verify_signature(struct iwl_priv *priv)
static void iwl_set_otp_access(struct iwl_priv *priv, enum iwl_access_mode mode)
{
u32 otpgp;
iwl_read32(priv, CSR_OTP_GP_REG);
otpgp = iwl_read32(priv, CSR_OTP_GP_REG);
if (mode == IWL_OTP_ACCESS_ABSOLUTE)
iwl_clear_bit(priv, CSR_OTP_GP_REG,
CSR_OTP_GP_REG_OTP_ACCESS_MODE);
CSR_OTP_GP_REG_OTP_ACCESS_MODE);
else
iwl_set_bit(priv, CSR_OTP_GP_REG,
CSR_OTP_GP_REG_OTP_ACCESS_MODE);
CSR_OTP_GP_REG_OTP_ACCESS_MODE);
}
static int iwlcore_get_nvm_type(struct iwl_priv *priv, u32 hw_rev)

9
drivers/net/wireless/iwlwifi/iwl-hcmd.c
View File

@ -188,6 +188,7 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
cmd_idx = iwl_enqueue_hcmd(priv, cmd);
if (cmd_idx < 0) {
ret = cmd_idx;
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
get_cmd_string(cmd->id), ret);
return ret;
@ -264,8 +265,8 @@ int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
{
struct iwl_host_cmd cmd = {
.id = id,
.len = len,
.data = data,
.len = { len, },
.data = { data, },
};
return iwl_send_cmd_sync(priv, &cmd);
@ -279,8 +280,8 @@ int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
{
struct iwl_host_cmd cmd = {
.id = id,
.len = len,
.data = data,
.len = { len, },
.data = { data, },
};
cmd.flags |= CMD_ASYNC;

4
drivers/net/wireless/iwlwifi/iwl-led.c
View File

@ -107,8 +107,8 @@ static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
{
struct iwl_host_cmd cmd = {
.id = REPLY_LEDS_CMD,
.len = sizeof(struct iwl_led_cmd),
.data = led_cmd,
.len = { sizeof(struct iwl_led_cmd), },
.data = { led_cmd, },
.flags = CMD_ASYNC,
.callback = NULL,
};

12
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -141,7 +141,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
struct iwl_host_cmd cmd = {
.id = REPLY_ADD_STA,
.flags = flags,
.data = data,
.data = { data, },
};
u8 sta_id __maybe_unused = sta->sta.sta_id;
@ -155,7 +155,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
might_sleep();
}
cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
cmd.len[0] = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
ret = iwl_send_cmd(priv, &cmd);
if (ret || (flags & CMD_ASYNC))
@ -401,9 +401,9 @@ static int iwl_send_remove_station(struct iwl_priv *priv,
struct iwl_host_cmd cmd = {
.id = REPLY_REMOVE_STA,
.len = sizeof(struct iwl_rem_sta_cmd),
.len = { sizeof(struct iwl_rem_sta_cmd), },
.flags = CMD_SYNC,
.data = &rm_sta_cmd,
.data = { &rm_sta_cmd, },
};
memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
@ -760,9 +760,9 @@ int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct iwl_host_cmd cmd = {
.id = REPLY_TX_LINK_QUALITY_CMD,
.len = sizeof(struct iwl_link_quality_cmd),
.len = { sizeof(struct iwl_link_quality_cmd), },
.flags = flags,
.data = lq,
.data = { lq, },
};
if (WARN_ON(lq->sta_id == IWL_INVALID_STATION))

177
drivers/net/wireless/iwlwifi/iwl-sv-open.c
View File

@ -97,6 +97,13 @@ struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
[IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, },
[IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, },
[IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, },
[IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, },
[IWL_TM_ATTR_TRACE_DATA] = { .type = NLA_UNSPEC, },
[IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, },
};
/*
@ -167,6 +174,31 @@ nla_put_failure:
void iwl_testmode_init(struct iwl_priv *priv)
{
priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
priv->testmode_trace.trace_enabled = false;
}
static void iwl_trace_cleanup(struct iwl_priv *priv)
{
struct device *dev = &priv->pci_dev->dev;
if (priv->testmode_trace.trace_enabled) {
if (priv->testmode_trace.cpu_addr &&
priv->testmode_trace.dma_addr)
dma_free_coherent(dev,
TRACE_TOTAL_SIZE,
priv->testmode_trace.cpu_addr,
priv->testmode_trace.dma_addr);
priv->testmode_trace.trace_enabled = false;
priv->testmode_trace.cpu_addr = NULL;
priv->testmode_trace.trace_addr = NULL;
priv->testmode_trace.dma_addr = 0;
}
}
void iwl_testmode_cleanup(struct iwl_priv *priv)
{
iwl_trace_cleanup(priv);
}
/*
@ -198,10 +230,11 @@ static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb)
}
cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
cmd.data = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
cmd.len = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x,"
" len %d\n", cmd.id, cmd.flags, cmd.len);
" len %d\n", cmd.id, cmd.flags, cmd.len[0]);
/* ok, let's submit the command to ucode */
return iwl_send_cmd(priv, &cmd);
}
@ -388,6 +421,38 @@ static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
"Error starting the device: %d\n", status);
break;
case IWL_TM_CMD_APP2DEV_GET_EEPROM:
if (priv->eeprom) {
skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
priv->cfg->base_params->eeprom_size + 20);
if (!skb) {
IWL_DEBUG_INFO(priv,
"Error allocating memory\n");
return -ENOMEM;
}
NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
IWL_TM_CMD_DEV2APP_EEPROM_RSP);
NLA_PUT(skb, IWL_TM_ATTR_EEPROM,
priv->cfg->base_params->eeprom_size,
priv->eeprom);
status = cfg80211_testmode_reply(skb);
if (status < 0)
IWL_DEBUG_INFO(priv,
"Error sending msg : %d\n",
status);
} else
return -EFAULT;
break;
case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
if (!tb[IWL_TM_ATTR_FIXRATE]) {
IWL_DEBUG_INFO(priv,
"Error finding fixrate setting\n");
return -ENOMSG;
}
priv->dbg_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
break;
default:
IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n");
return -ENOSYS;
@ -399,6 +464,102 @@ nla_put_failure:
return -EMSGSIZE;
}
/*
* This function handles the user application commands for uCode trace
*
* It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
* handlers respectively.
*
* If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
* value of the actual command execution is replied to the user application.
*
* @hw: ieee80211_hw object that represents the device
* @tb: gnl message fields from the user space
*/
static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb)
{
struct iwl_priv *priv = hw->priv;
struct sk_buff *skb;
int status = 0;
struct device *dev = &priv->pci_dev->dev;
switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
if (priv->testmode_trace.trace_enabled)
return -EBUSY;
priv->testmode_trace.cpu_addr =
dma_alloc_coherent(dev,
TRACE_TOTAL_SIZE,
&priv->testmode_trace.dma_addr,
GFP_KERNEL);
if (!priv->testmode_trace.cpu_addr)
return -ENOMEM;
priv->testmode_trace.trace_enabled = true;
priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN(
priv->testmode_trace.cpu_addr, 0x100);
memset(priv->testmode_trace.trace_addr, 0x03B,
TRACE_BUFF_SIZE);
skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
sizeof(priv->testmode_trace.dma_addr) + 20);
if (!skb) {
IWL_DEBUG_INFO(priv,
"Error allocating memory\n");
iwl_trace_cleanup(priv);
return -ENOMEM;
}
NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR,
sizeof(priv->testmode_trace.dma_addr),
(u64 *)&priv->testmode_trace.dma_addr);
status = cfg80211_testmode_reply(skb);
if (status < 0) {
IWL_DEBUG_INFO(priv,
"Error sending msg : %d\n",
status);
}
break;
case IWL_TM_CMD_APP2DEV_END_TRACE:
iwl_trace_cleanup(priv);
break;
case IWL_TM_CMD_APP2DEV_READ_TRACE:
if (priv->testmode_trace.trace_enabled &&
priv->testmode_trace.trace_addr) {
skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
20 + TRACE_BUFF_SIZE);
if (skb == NULL) {
IWL_DEBUG_INFO(priv,
"Error allocating memory\n");
return -ENOMEM;
}
NLA_PUT(skb, IWL_TM_ATTR_TRACE_DATA,
TRACE_BUFF_SIZE,
priv->testmode_trace.trace_addr);
status = cfg80211_testmode_reply(skb);
if (status < 0) {
IWL_DEBUG_INFO(priv,
"Error sending msg : %d\n", status);
}
} else
return -EFAULT;
break;
default:
IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n");
return -ENOSYS;
}
return status;
nla_put_failure:
kfree_skb(skb);
if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) ==
IWL_TM_CMD_APP2DEV_BEGIN_TRACE)
iwl_trace_cleanup(priv);
return -EMSGSIZE;
}
/* The testmode gnl message handler that takes the gnl message from the
* user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
* invoke the corresponding handlers.
@ -455,9 +616,19 @@ int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
case IWL_TM_CMD_APP2DEV_GET_EEPROM:
case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
result = iwl_testmode_driver(hw, tb);
break;
case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
case IWL_TM_CMD_APP2DEV_END_TRACE:
case IWL_TM_CMD_APP2DEV_READ_TRACE:
IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n");
result = iwl_testmode_trace(hw, tb);
break;
default:
IWL_DEBUG_INFO(priv, "Unknown testmode command\n");
result = -ENOSYS;

34
drivers/net/wireless/iwlwifi/iwl-testmode.h
View File

@ -88,9 +88,15 @@ enum iwl_tm_cmd_t {
IWL_TM_CMD_APP2DEV_LOAD_INIT_FW,
IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB,
IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW,
IWL_TM_CMD_APP2DEV_GET_EEPROM,
IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
/* if there is other new command for the driver layer operation,
* append them here */
/* commands fom user space for uCode trace operations */
IWL_TM_CMD_APP2DEV_BEGIN_TRACE,
IWL_TM_CMD_APP2DEV_END_TRACE,
IWL_TM_CMD_APP2DEV_READ_TRACE,
/* commands from kernel space to carry the synchronous response
* to user application */
@ -99,6 +105,11 @@ enum iwl_tm_cmd_t {
/* commands from kernel space to multicast the spontaneous messages
* to user application */
IWL_TM_CMD_DEV2APP_UCODE_RX_PKT,
/* commands from kernel space to carry the eeprom response
* to user application */
IWL_TM_CMD_DEV2APP_EEPROM_RSP,
IWL_TM_CMD_MAX,
};
@ -144,8 +155,31 @@ enum iwl_tm_attr_t {
* application */
IWL_TM_ATTR_UCODE_RX_PKT,
/* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM,
* The mandatory fields are:
* IWL_TM_ATTR_EEPROM for the data content responging to the user
* application */
IWL_TM_ATTR_EEPROM,
/* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE,
* The mandatory fields are:
* IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address
*/
IWL_TM_ATTR_TRACE_ADDR,
IWL_TM_ATTR_TRACE_DATA,
/* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
* The mandatory fields are:
* IWL_TM_ATTR_FIXRATE for the fixed rate
*/
IWL_TM_ATTR_FIXRATE,
IWL_TM_ATTR_MAX,
};
/* uCode trace buffer */
#define TRACE_BUFF_SIZE 0x20000
#define TRACE_BUFF_PADD 0x2000
#define TRACE_TOTAL_SIZE (TRACE_BUFF_SIZE + TRACE_BUFF_PADD)
#endif

357
drivers/net/wireless/iwlwifi/iwl-tx.c
View File

@ -32,6 +32,7 @@
#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-agn.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
@ -85,6 +86,158 @@ void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
txq->need_update = 0;
}
static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
dma_addr_t addr = get_unaligned_le32(&tb->lo);
if (sizeof(dma_addr_t) > sizeof(u32))
addr |=
((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
return addr;
}
static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
return le16_to_cpu(tb->hi_n_len) >> 4;
}
static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
dma_addr_t addr, u16 len)
{
struct iwl_tfd_tb *tb = &tfd->tbs[idx];
u16 hi_n_len = len << 4;
put_unaligned_le32(addr, &tb->lo);
if (sizeof(dma_addr_t) > sizeof(u32))
hi_n_len |= ((addr >> 16) >> 16) & 0xF;
tb->hi_n_len = cpu_to_le16(hi_n_len);
tfd->num_tbs = idx + 1;
}
static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
{
return tfd->num_tbs & 0x1f;
}
static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
struct iwl_tfd *tfd)
{
struct pci_dev *dev = priv->pci_dev;
int i;
int num_tbs;
/* Sanity check on number of chunks */
num_tbs = iwl_tfd_get_num_tbs(tfd);
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
/* @todo issue fatal error, it is quite serious situation */
return;
}
/* Unmap tx_cmd */
if (num_tbs)
pci_unmap_single(dev,
dma_unmap_addr(meta, mapping),
dma_unmap_len(meta, len),
PCI_DMA_BIDIRECTIONAL);
/* Unmap chunks, if any. */
for (i = 1; i < num_tbs; i++)
pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
}
/**
* iwlagn_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
* @priv - driver private data
* @txq - tx queue
*
* Does NOT advance any TFD circular buffer read/write indexes
* Does NOT free the TFD itself (which is within circular buffer)
*/
void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd *tfd_tmp = txq->tfds;
int index = txq->q.read_ptr;
iwlagn_unmap_tfd(priv, &txq->meta[index], &tfd_tmp[index]);
/* free SKB */
if (txq->txb) {
struct sk_buff *skb;
skb = txq->txb[txq->q.read_ptr].skb;
/* can be called from irqs-disabled context */
if (skb) {
dev_kfree_skb_any(skb);
txq->txb[txq->q.read_ptr].skb = NULL;
}
}
}
int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len,
u8 reset)
{
struct iwl_queue *q;
struct iwl_tfd *tfd, *tfd_tmp;
u32 num_tbs;
q = &txq->q;
tfd_tmp = txq->tfds;
tfd = &tfd_tmp[q->write_ptr];
if (reset)
memset(tfd, 0, sizeof(*tfd));
num_tbs = iwl_tfd_get_num_tbs(tfd);
/* Each TFD can point to a maximum 20 Tx buffers */
if (num_tbs >= IWL_NUM_OF_TBS) {
IWL_ERR(priv, "Error can not send more than %d chunks\n",
IWL_NUM_OF_TBS);
return -EINVAL;
}
if (WARN_ON(addr & ~DMA_BIT_MASK(36)))
return -EINVAL;
if (unlikely(addr & ~IWL_TX_DMA_MASK))
IWL_ERR(priv, "Unaligned address = %llx\n",
(unsigned long long)addr);
iwl_tfd_set_tb(tfd, num_tbs, addr, len);
return 0;
}
/*
* Tell nic where to find circular buffer of Tx Frame Descriptors for
* given Tx queue, and enable the DMA channel used for that queue.
*
* supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
* channels supported in hardware.
*/
static int iwlagn_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
int txq_id = txq->q.id;
/* Circular buffer (TFD queue in DRAM) physical base address */
iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
txq->q.dma_addr >> 8);
return 0;
}
/**
* iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's
*/
@ -97,7 +250,7 @@ void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id)
return;
while (q->write_ptr != q->read_ptr) {
priv->cfg->ops->lib->txq_free_tfd(priv, txq);
iwlagn_txq_free_tfd(priv, txq);
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd);
}
}
@ -154,7 +307,7 @@ void iwl_cmd_queue_unmap(struct iwl_priv *priv)
return;
while (q->read_ptr != q->write_ptr) {
i = get_cmd_index(q, q->read_ptr, 0);
i = get_cmd_index(q, q->read_ptr);
if (txq->meta[i].flags & CMD_MAPPED) {
pci_unmap_single(priv->pci_dev,
@ -166,15 +319,6 @@ void iwl_cmd_queue_unmap(struct iwl_priv *priv)
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd);
}
i = q->n_window;
if (txq->meta[i].flags & CMD_MAPPED) {
pci_unmap_single(priv->pci_dev,
dma_unmap_addr(&txq->meta[i], mapping),
dma_unmap_len(&txq->meta[i], len),
PCI_DMA_BIDIRECTIONAL);
txq->meta[i].flags = 0;
}
}
/**
@ -194,7 +338,7 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
iwl_cmd_queue_unmap(priv);
/* De-alloc array of command/tx buffers */
for (i = 0; i <= TFD_CMD_SLOTS; i++)
for (i = 0; i < TFD_CMD_SLOTS; i++)
kfree(txq->cmd[i]);
/* De-alloc circular buffer of TFDs */
@ -334,33 +478,17 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
{
int i, len;
int ret;
int actual_slots = slots_num;
/*
* Alloc buffer array for commands (Tx or other types of commands).
* For the command queue (#4/#9), allocate command space + one big
* command for scan, since scan command is very huge; the system will
* not have two scans at the same time, so only one is needed.
* For normal Tx queues (all other queues), no super-size command
* space is needed.
*/
if (txq_id == priv->cmd_queue)
actual_slots++;
txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots,
txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * slots_num,
GFP_KERNEL);
txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots,
txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * slots_num,
GFP_KERNEL);
if (!txq->meta || !txq->cmd)
goto out_free_arrays;
len = sizeof(struct iwl_device_cmd);
for (i = 0; i < actual_slots; i++) {
/* only happens for cmd queue */
if (i == slots_num)
len = IWL_MAX_CMD_SIZE;
for (i = 0; i < slots_num; i++) {
txq->cmd[i] = kmalloc(len, GFP_KERNEL);
if (!txq->cmd[i])
goto err;
@ -391,11 +519,11 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
return ret;
/* Tell device where to find queue */
priv->cfg->ops->lib->txq_init(priv, txq);
iwlagn_tx_queue_init(priv, txq);
return 0;
err:
for (i = 0; i < actual_slots; i++)
for (i = 0; i < slots_num; i++)
kfree(txq->cmd[i]);
out_free_arrays:
kfree(txq->meta);
@ -420,7 +548,7 @@ void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
/* Tell device where to find queue */
priv->cfg->ops->lib->txq_init(priv, txq);
iwlagn_tx_queue_init(priv, txq);
}
/*************** HOST COMMAND QUEUE FUNCTIONS *****/
@ -443,23 +571,49 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
dma_addr_t phys_addr;
unsigned long flags;
u32 idx;
u16 fix_size;
u16 copy_size, cmd_size;
bool is_ct_kill = false;
bool had_nocopy = false;
int i;
u8 *cmd_dest;
#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
const void *trace_bufs[IWL_MAX_CMD_TFDS + 1] = {};
int trace_lens[IWL_MAX_CMD_TFDS + 1] = {};
int trace_idx;
#endif
fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
if (test_bit(STATUS_FW_ERROR, &priv->status)) {
IWL_WARN(priv, "fw recovery, no hcmd send\n");
return -EIO;
}
copy_size = sizeof(out_cmd->hdr);
cmd_size = sizeof(out_cmd->hdr);
/* need one for the header if the first is NOCOPY */
BUILD_BUG_ON(IWL_MAX_CMD_TFDS > IWL_NUM_OF_TBS - 1);
for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
if (!cmd->len[i])
continue;
if (cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY) {
had_nocopy = true;
} else {
/* NOCOPY must not be followed by normal! */
if (WARN_ON(had_nocopy))
return -EINVAL;
copy_size += cmd->len[i];
}
cmd_size += cmd->len[i];
}
/*
* If any of the command structures end up being larger than
* the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
* we will need to increase the size of the TFD entries
* Also, check to see if command buffer should not exceed the size
* of device_cmd and max_cmd_size.
* the TFD_MAX_PAYLOAD_SIZE and they aren't dynamically
* allocated into separate TFDs, then we will need to
* increase the size of the buffers.
*/
if (WARN_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
!(cmd->flags & CMD_SIZE_HUGE)))
return -EINVAL;
if (WARN_ON(fix_size > IWL_MAX_CMD_SIZE))
if (WARN_ON(copy_size > TFD_MAX_PAYLOAD_SIZE))
return -EINVAL;
if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) {
@ -468,14 +622,6 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
return -EIO;
}
/*
* As we only have a single huge buffer, check that the command
* is synchronous (otherwise buffers could end up being reused).
*/
if (WARN_ON((cmd->flags & CMD_ASYNC) && (cmd->flags & CMD_SIZE_HUGE)))
return -EINVAL;
spin_lock_irqsave(&priv->hcmd_lock, flags);
if (iwl_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
@ -490,7 +636,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
return -ENOSPC;
}
idx = get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
idx = get_cmd_index(q, q->write_ptr);
out_cmd = txq->cmd[idx];
out_meta = &txq->meta[idx];
@ -505,57 +651,84 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
if (cmd->flags & CMD_ASYNC)
out_meta->callback = cmd->callback;
/* set up the header */
out_cmd->hdr.cmd = cmd->id;
memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
/* At this point, the out_cmd now has all of the incoming cmd
* information */
out_cmd->hdr.flags = 0;
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(priv->cmd_queue) |
INDEX_TO_SEQ(q->write_ptr));
if (cmd->flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
INDEX_TO_SEQ(q->write_ptr));
#ifdef CONFIG_IWLWIFI_DEBUG
switch (out_cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
IWL_DEBUG_HC_DUMP(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
le16_to_cpu(out_cmd->hdr.sequence), fix_size,
q->write_ptr, idx, priv->cmd_queue);
break;
default:
IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
le16_to_cpu(out_cmd->hdr.sequence), fix_size,
q->write_ptr, idx, priv->cmd_queue);
/* and copy the data that needs to be copied */
cmd_dest = &out_cmd->cmd.payload[0];
for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
if (!cmd->len[i])
continue;
if (cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY)
break;
memcpy(cmd_dest, cmd->data[i], cmd->len[i]);
cmd_dest += cmd->len[i];
}
#endif
IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
le16_to_cpu(out_cmd->hdr.sequence), cmd_size,
q->write_ptr, idx, priv->cmd_queue);
phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr,
fix_size, PCI_DMA_BIDIRECTIONAL);
copy_size, PCI_DMA_BIDIRECTIONAL);
if (unlikely(pci_dma_mapping_error(priv->pci_dev, phys_addr))) {
idx = -ENOMEM;
goto out;
}
dma_unmap_addr_set(out_meta, mapping, phys_addr);
dma_unmap_len_set(out_meta, len, fix_size);
dma_unmap_len_set(out_meta, len, copy_size);
iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr, copy_size, 1);
#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
trace_bufs[0] = &out_cmd->hdr;
trace_lens[0] = copy_size;
trace_idx = 1;
#endif
for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
if (!cmd->len[i])
continue;
if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY))
continue;
phys_addr = pci_map_single(priv->pci_dev, (void *)cmd->data[i],
cmd->len[i], PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(priv->pci_dev, phys_addr)) {
iwlagn_unmap_tfd(priv, out_meta,
&txq->tfds[q->write_ptr]);
idx = -ENOMEM;
goto out;
}
iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr,
cmd->len[i], 0);
#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
trace_bufs[trace_idx] = cmd->data[i];
trace_lens[trace_idx] = cmd->len[i];
trace_idx++;
#endif
}
out_meta->flags = cmd->flags | CMD_MAPPED;
txq->need_update = 1;
trace_iwlwifi_dev_hcmd(priv, &out_cmd->hdr, fix_size, cmd->flags);
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
phys_addr, fix_size, 1,
U32_PAD(cmd->len));
/* check that tracing gets all possible blocks */
BUILD_BUG_ON(IWL_MAX_CMD_TFDS + 1 != 3);
#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
trace_iwlwifi_dev_hcmd(priv, cmd->flags,
trace_bufs[0], trace_lens[0],
trace_bufs[1], trace_lens[1],
trace_bufs[2], trace_lens[2]);
#endif
/* Increment and update queue's write index */
q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
@ -614,7 +787,6 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
int txq_id = SEQ_TO_QUEUE(sequence);
int index = SEQ_TO_INDEX(sequence);
int cmd_index;
bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
struct iwl_device_cmd *cmd;
struct iwl_cmd_meta *meta;
struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
@ -632,14 +804,11 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
return;
}
cmd_index = get_cmd_index(&txq->q, index, huge);
cmd_index = get_cmd_index(&txq->q, index);
cmd = txq->cmd[cmd_index];
meta = &txq->meta[cmd_index];
pci_unmap_single(priv->pci_dev,
dma_unmap_addr(meta, mapping),
dma_unmap_len(meta, len),
PCI_DMA_BIDIRECTIONAL);
iwlagn_unmap_tfd(priv, meta, &txq->tfds[index]);
/* Input error checking is done when commands are added to queue. */
if (meta->flags & CMD_WANT_SKB) {