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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

wifi-calibration
John W. Linville 2014-05-29 12:55:38 -04:00
parent 03c4444650 d3a58df87a
commit 737be10d8c
13 changed files with 234 additions and 29 deletions
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1
include/linux/ieee80211.h
View File

@ -1711,6 +1711,7 @@ enum ieee80211_eid {
WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
WLAN_EID_MULTIPLE_BSSID = 71,
WLAN_EID_BSS_COEX_2040 = 72,
WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
WLAN_EID_RIC_DESCRIPTOR = 75,
WLAN_EID_MMIE = 76,

46
include/net/mac80211.h
View File

@ -188,6 +188,43 @@ struct ieee80211_chanctx_conf {
u8 drv_priv[0] __aligned(sizeof(void *));
};
/**
* enum ieee80211_chanctx_switch_mode - channel context switch mode
* @CHANCTX_SWMODE_REASSIGN_VIF: Both old and new contexts already
* exist (and will continue to exist), but the virtual interface
* needs to be switched from one to the other.
* @CHANCTX_SWMODE_SWAP_CONTEXTS: The old context exists but will stop
* to exist with this call, the new context doesn't exist but
* will be active after this call, the virtual interface switches
* from the old to the new (note that the driver may of course
* implement this as an on-the-fly chandef switch of the existing
* hardware context, but the mac80211 pointer for the old context
* will cease to exist and only the new one will later be used
* for changes/removal.)
*/
enum ieee80211_chanctx_switch_mode {
CHANCTX_SWMODE_REASSIGN_VIF,
CHANCTX_SWMODE_SWAP_CONTEXTS,
};
/**
* struct ieee80211_vif_chanctx_switch - vif chanctx switch information
*
* This is structure is used to pass information about a vif that
* needs to switch from one chanctx to another. The
* &ieee80211_chanctx_switch_mode defines how the switch should be
* done.
*
* @vif: the vif that should be switched from old_ctx to new_ctx
* @old_ctx: the old context to which the vif was assigned
* @new_ctx: the new context to which the vif must be assigned
*/
struct ieee80211_vif_chanctx_switch {
struct ieee80211_vif *vif;
struct ieee80211_chanctx_conf *old_ctx;
struct ieee80211_chanctx_conf *new_ctx;
};
/**
* enum ieee80211_bss_change - BSS change notification flags
*
@ -2736,6 +2773,11 @@ enum ieee80211_roc_type {
* to vif. Possible use is for hw queue remapping.
* @unassign_vif_chanctx: Notifies device driver about channel context being
* unbound from vif.
* @switch_vif_chanctx: switch a number of vifs from one chanctx to
* another, as specified in the list of
* @ieee80211_vif_chanctx_switch passed to the driver, according
* to the mode defined in &ieee80211_chanctx_switch_mode.
*
* @start_ap: Start operation on the AP interface, this is called after all the
* information in bss_conf is set and beacon can be retrieved. A channel
* context is bound before this is called. Note that if the driver uses
@ -2952,6 +2994,10 @@ struct ieee80211_ops {
void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx);
int (*switch_vif_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_vif_chanctx_switch *vifs,
int n_vifs,
enum ieee80211_chanctx_switch_mode mode);
void (*restart_complete)(struct ieee80211_hw *hw);

6
net/mac80211/debugfs_netdev.c
View File

@ -34,8 +34,7 @@ static ssize_t ieee80211_if_read(
ssize_t ret = -EINVAL;
read_lock(&dev_base_lock);
if (sdata->dev->reg_state == NETREG_REGISTERED)
ret = (*format)(sdata, buf, sizeof(buf));
ret = (*format)(sdata, buf, sizeof(buf));
read_unlock(&dev_base_lock);
if (ret >= 0)
@ -62,8 +61,7 @@ static ssize_t ieee80211_if_write(
ret = -ENODEV;
rtnl_lock();
if (sdata->dev->reg_state == NETREG_REGISTERED)
ret = (*write)(sdata, buf, count);
ret = (*write)(sdata, buf, count);
rtnl_unlock();
return ret;

53
net/mac80211/driver-ops.h
View File

@ -1048,6 +1048,59 @@ static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
trace_drv_return_void(local);
}
static inline int
drv_switch_vif_chanctx(struct ieee80211_local *local,
struct ieee80211_vif_chanctx_switch *vifs,
int n_vifs,
enum ieee80211_chanctx_switch_mode mode)
{
int ret = 0;
int i;
if (!local->ops->switch_vif_chanctx)
return -EOPNOTSUPP;
for (i = 0; i < n_vifs; i++) {
struct ieee80211_chanctx *new_ctx =
container_of(vifs[i].new_ctx,
struct ieee80211_chanctx,
conf);
struct ieee80211_chanctx *old_ctx =
container_of(vifs[i].old_ctx,
struct ieee80211_chanctx,
conf);
WARN_ON_ONCE(!old_ctx->driver_present);
WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
new_ctx->driver_present) ||
(mode == CHANCTX_SWMODE_REASSIGN_VIF &&
!new_ctx->driver_present));
}
trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
ret = local->ops->switch_vif_chanctx(&local->hw,
vifs, n_vifs, mode);
trace_drv_return_int(local, ret);
if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
for (i = 0; i < n_vifs; i++) {
struct ieee80211_chanctx *new_ctx =
container_of(vifs[i].new_ctx,
struct ieee80211_chanctx,
conf);
struct ieee80211_chanctx *old_ctx =
container_of(vifs[i].old_ctx,
struct ieee80211_chanctx,
conf);
new_ctx->driver_present = true;
old_ctx->driver_present = false;
}
}
return ret;
}
static inline int drv_start_ap(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{

1
net/mac80211/ibss.c
View File

@ -1677,6 +1677,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.control_port = params->control_port;
sdata->u.ibss.userspace_handles_dfs = params->userspace_handles_dfs;
sdata->u.ibss.basic_rates = params->basic_rates;
sdata->u.ibss.last_scan_completed = jiffies;
/* fix basic_rates if channel does not support these rates */
rate_flags = ieee80211_chandef_rate_flags(&params->chandef);

2
net/mac80211/iface.c
View File

@ -399,6 +399,7 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
sdata->vif.type = NL80211_IFTYPE_MONITOR;
snprintf(sdata->name, IFNAMSIZ, "%s-monitor",
wiphy_name(local->hw.wiphy));
sdata->wdev.iftype = NL80211_IFTYPE_MONITOR;
sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
@ -1285,6 +1286,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
sdata->control_port_no_encrypt = false;
sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
sdata->vif.bss_conf.idle = true;
sdata->noack_map = 0;

1
net/mac80211/sta_info.c
View File

@ -240,6 +240,7 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr);
kfree(rcu_dereference_raw(sta->sta.rates));
kfree(sta);
}

25
net/mac80211/status.c
View File

@ -541,6 +541,23 @@ static void ieee80211_tx_latency_end_msrmnt(struct ieee80211_local *local,
*/
#define STA_LOST_PKT_THRESHOLD 50
static void ieee80211_lost_packet(struct sta_info *sta, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
/* This packet was aggregated but doesn't carry status info */
if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
!(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
if (++sta->lost_packets < STA_LOST_PKT_THRESHOLD)
return;
cfg80211_cqm_pktloss_notify(sta->sdata->dev, sta->sta.addr,
sta->lost_packets, GFP_ATOMIC);
sta->lost_packets = 0;
}
void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct sk_buff *skb2;
@ -680,12 +697,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (info->flags & IEEE80211_TX_STAT_ACK) {
if (sta->lost_packets)
sta->lost_packets = 0;
} else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) {
cfg80211_cqm_pktloss_notify(sta->sdata->dev,
sta->sta.addr,
sta->lost_packets,
GFP_ATOMIC);
sta->lost_packets = 0;
} else {
ieee80211_lost_packet(sta, skb);
}
}

85
net/mac80211/trace.h
View File

@ -1389,6 +1389,91 @@ TRACE_EVENT(drv_change_chanctx,
)
);
#if !defined(__TRACE_VIF_ENTRY)
#define __TRACE_VIF_ENTRY
struct trace_vif_entry {
enum nl80211_iftype vif_type;
bool p2p;
char vif_name[IFNAMSIZ];
} __packed;
struct trace_chandef_entry {
u32 control_freq;
u32 chan_width;
u32 center_freq1;
u32 center_freq2;
} __packed;
struct trace_switch_entry {
struct trace_vif_entry vif;
struct trace_chandef_entry old_chandef;
struct trace_chandef_entry new_chandef;
} __packed;
#define SWITCH_ENTRY_ASSIGN(to, from) local_vifs[i].to = vifs[i].from
#endif
TRACE_EVENT(drv_switch_vif_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_vif_chanctx_switch *vifs,
int n_vifs, enum ieee80211_chanctx_switch_mode mode),
TP_ARGS(local, vifs, n_vifs, mode),
TP_STRUCT__entry(
LOCAL_ENTRY
__field(int, n_vifs)
__field(u32, mode)
__dynamic_array(u8, vifs,
sizeof(struct trace_switch_entry) * n_vifs)
),
TP_fast_assign(
LOCAL_ASSIGN;
__entry->n_vifs = n_vifs;
__entry->mode = mode;
{
struct trace_switch_entry *local_vifs =
__get_dynamic_array(vifs);
int i;
for (i = 0; i < n_vifs; i++) {
struct ieee80211_sub_if_data *sdata;
sdata = container_of(vifs[i].vif,
struct ieee80211_sub_if_data,
vif);
SWITCH_ENTRY_ASSIGN(vif.vif_type, vif->type);
SWITCH_ENTRY_ASSIGN(vif.p2p, vif->p2p);
strncpy(local_vifs[i].vif.vif_name,
sdata->name,
sizeof(local_vifs[i].vif.vif_name));
SWITCH_ENTRY_ASSIGN(old_chandef.control_freq,
old_ctx->def.chan->center_freq);
SWITCH_ENTRY_ASSIGN(old_chandef.chan_width,
old_ctx->def.width);
SWITCH_ENTRY_ASSIGN(old_chandef.center_freq1,
old_ctx->def.center_freq1);
SWITCH_ENTRY_ASSIGN(old_chandef.center_freq2,
old_ctx->def.center_freq2);
SWITCH_ENTRY_ASSIGN(new_chandef.control_freq,
new_ctx->def.chan->center_freq);
SWITCH_ENTRY_ASSIGN(new_chandef.chan_width,
new_ctx->def.width);
SWITCH_ENTRY_ASSIGN(new_chandef.center_freq1,
new_ctx->def.center_freq1);
SWITCH_ENTRY_ASSIGN(new_chandef.center_freq2,
new_ctx->def.center_freq2);
}
}
),
TP_printk(
LOCAL_PR_FMT " n_vifs:%d mode:%d",
LOCAL_PR_ARG, __entry->n_vifs, __entry->mode
)
);
DECLARE_EVENT_CLASS(local_sdata_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,

5
net/wireless/core.c
View File

@ -130,7 +130,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
newname))
pr_err("failed to rename debugfs dir to %s!\n", newname);
nl80211_notify_dev_rename(rdev);
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
return 0;
}
@ -660,6 +660,8 @@ int wiphy_register(struct wiphy *wiphy)
return res;
}
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
return 0;
}
EXPORT_SYMBOL(wiphy_register);
@ -698,6 +700,7 @@ void wiphy_unregister(struct wiphy *wiphy)
rfkill_unregister(rdev->rfkill);
rtnl_lock();
nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
rdev->wiphy.registered = false;
WARN_ON(!list_empty(&rdev->wdev_list));

14
net/wireless/genregdb.awk
View File

@ -68,17 +68,7 @@ function parse_reg_rule()
sub(/,/, "", units)
dfs_cac = $9
if (units == "mW") {
if (power == 100) {
power = 20
} else if (power == 200) {
power = 23
} else if (power == 500) {
power = 27
} else if (power == 1000) {
power = 30
} else {
print "Unknown power value in database!"
}
power = 10 * log(power)/log(10)
} else {
dfs_cac = $8
}
@ -117,7 +107,7 @@ function parse_reg_rule()
}
flags = flags "0"
printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
rules++
}

21
net/wireless/nl80211.c
View File

@ -1226,6 +1226,7 @@ struct nl80211_dump_wiphy_state {
};
static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
enum nl80211_commands cmd,
struct sk_buff *msg, u32 portid, u32 seq,
int flags, struct nl80211_dump_wiphy_state *state)
{
@ -1240,7 +1241,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
rdev->wiphy.mgmt_stypes;
u32 features;
hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
if (!hdr)
return -ENOBUFS;
@ -1254,6 +1255,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
cfg80211_rdev_list_generation))
goto nla_put_failure;
if (cmd != NL80211_CMD_NEW_WIPHY)
goto finish;
switch (state->split_start) {
case 0:
if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
@ -1682,6 +1686,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start = 0;
break;
}
finish:
return genlmsg_end(msg, hdr);
nla_put_failure:
@ -1756,7 +1761,8 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
continue;
/* attempt to fit multiple wiphy data chunks into the skb */
do {
ret = nl80211_send_wiphy(rdev, skb,
ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
skb,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
NLM_F_MULTI, state);
@ -1811,7 +1817,8 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
if (!msg)
return -ENOMEM;
if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
info->snd_portid, info->snd_seq, 0,
&state) < 0) {
nlmsg_free(msg);
return -ENOBUFS;
@ -10101,16 +10108,20 @@ static const struct genl_ops nl80211_ops[] = {
/* notification functions */
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
enum nl80211_commands cmd)
{
struct sk_buff *msg;
struct nl80211_dump_wiphy_state state = {};
WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
cmd != NL80211_CMD_DEL_WIPHY);
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return;
if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
nlmsg_free(msg);
return;
}

3
net/wireless/nl80211.h
View File

@ -5,7 +5,8 @@
int nl80211_init(void);
void nl80211_exit(void);
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
enum nl80211_commands cmd);
void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev);
struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,