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path: root/drivers/net/wireless/iwlegacy/common.c
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Diffstat (limited to 'drivers/net/wireless/iwlegacy/common.c')
-rw-r--r--drivers/net/wireless/iwlegacy/common.c137
1 files changed, 100 insertions, 37 deletions
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index e006ea83132..ecc674627e6 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -33,7 +33,6 @@
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/lockdep.h>
-#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
@@ -1079,29 +1078,82 @@ EXPORT_SYMBOL(il_get_channel_info);
* Setting power level allows the card to go to sleep when not busy.
*
* We calculate a sleep command based on the required latency, which
- * we get from mac80211. In order to handle thermal throttling, we can
- * also use pre-defined power levels.
+ * we get from mac80211.
*/
-/*
- * This defines the old power levels. They are still used by default
- * (level 1) and for thermal throttle (levels 3 through 5)
- */
-
-struct il_power_vec_entry {
- struct il_powertable_cmd cmd;
- u8 no_dtim; /* number of skip dtim */
-};
+#define SLP_VEC(X0, X1, X2, X3, X4) { \
+ cpu_to_le32(X0), \
+ cpu_to_le32(X1), \
+ cpu_to_le32(X2), \
+ cpu_to_le32(X3), \
+ cpu_to_le32(X4) \
+}
static void
-il_power_sleep_cam_cmd(struct il_priv *il, struct il_powertable_cmd *cmd)
+il_build_powertable_cmd(struct il_priv *il, struct il_powertable_cmd *cmd)
{
+ const __le32 interval[3][IL_POWER_VEC_SIZE] = {
+ SLP_VEC(2, 2, 4, 6, 0xFF),
+ SLP_VEC(2, 4, 7, 10, 10),
+ SLP_VEC(4, 7, 10, 10, 0xFF)
+ };
+ int i, dtim_period, no_dtim;
+ u32 max_sleep;
+ bool skip;
+
memset(cmd, 0, sizeof(*cmd));
if (il->power_data.pci_pm)
cmd->flags |= IL_POWER_PCI_PM_MSK;
- D_POWER("Sleep command for CAM\n");
+ /* if no Power Save, we are done */
+ if (il->power_data.ps_disabled)
+ return;
+
+ cmd->flags = IL_POWER_DRIVER_ALLOW_SLEEP_MSK;
+ cmd->keep_alive_seconds = 0;
+ cmd->debug_flags = 0;
+ cmd->rx_data_timeout = cpu_to_le32(25 * 1024);
+ cmd->tx_data_timeout = cpu_to_le32(25 * 1024);
+ cmd->keep_alive_beacons = 0;
+
+ dtim_period = il->vif ? il->vif->bss_conf.dtim_period : 0;
+
+ if (dtim_period <= 2) {
+ memcpy(cmd->sleep_interval, interval[0], sizeof(interval[0]));
+ no_dtim = 2;
+ } else if (dtim_period <= 10) {
+ memcpy(cmd->sleep_interval, interval[1], sizeof(interval[1]));
+ no_dtim = 2;
+ } else {
+ memcpy(cmd->sleep_interval, interval[2], sizeof(interval[2]));
+ no_dtim = 0;
+ }
+
+ if (dtim_period == 0) {
+ dtim_period = 1;
+ skip = false;
+ } else {
+ skip = !!no_dtim;
+ }
+
+ if (skip) {
+ __le32 tmp = cmd->sleep_interval[IL_POWER_VEC_SIZE - 1];
+
+ max_sleep = le32_to_cpu(tmp);
+ if (max_sleep == 0xFF)
+ max_sleep = dtim_period * (skip + 1);
+ else if (max_sleep > dtim_period)
+ max_sleep = (max_sleep / dtim_period) * dtim_period;
+ cmd->flags |= IL_POWER_SLEEP_OVER_DTIM_MSK;
+ } else {
+ max_sleep = dtim_period;
+ cmd->flags &= ~IL_POWER_SLEEP_OVER_DTIM_MSK;
+ }
+
+ for (i = 0; i < IL_POWER_VEC_SIZE; i++)
+ if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+ cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
}
static int
@@ -1122,7 +1174,7 @@ il_set_power(struct il_priv *il, struct il_powertable_cmd *cmd)
sizeof(struct il_powertable_cmd), cmd);
}
-int
+static int
il_power_set_mode(struct il_priv *il, struct il_powertable_cmd *cmd, bool force)
{
int ret;
@@ -1174,7 +1226,8 @@ il_power_update_mode(struct il_priv *il, bool force)
{
struct il_powertable_cmd cmd;
- il_power_sleep_cam_cmd(il, &cmd);
+ il_build_powertable_cmd(il, &cmd);
+
return il_power_set_mode(il, &cmd, force);
}
EXPORT_SYMBOL(il_power_update_mode);
@@ -1423,7 +1476,7 @@ il_setup_rx_scan_handlers(struct il_priv *il)
}
EXPORT_SYMBOL(il_setup_rx_scan_handlers);
-inline u16
+u16
il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band,
u8 n_probes)
{
@@ -2566,15 +2619,13 @@ il_rx_queue_alloc(struct il_priv *il)
INIT_LIST_HEAD(&rxq->rx_used);
/* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
- rxq->bd =
- dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
- GFP_KERNEL);
+ rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
+ GFP_KERNEL);
if (!rxq->bd)
goto err_bd;
- rxq->rb_stts =
- dma_alloc_coherent(dev, sizeof(struct il_rb_status),
- &rxq->rb_stts_dma, GFP_KERNEL);
+ rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct il_rb_status),
+ &rxq->rb_stts_dma, GFP_KERNEL);
if (!rxq->rb_stts)
goto err_rb;
@@ -2941,10 +2992,9 @@ il_tx_queue_alloc(struct il_priv *il, struct il_tx_queue *txq, u32 id)
* shared with device */
txq->tfds =
dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, GFP_KERNEL);
- if (!txq->tfds) {
- IL_ERR("Fail to alloc TFDs\n");
+ if (!txq->tfds)
goto error;
- }
+
txq->q.id = id;
return 0;
@@ -3448,10 +3498,10 @@ il_init_geos(struct il_priv *il)
if (il_is_channel_valid(ch)) {
if (!(ch->flags & EEPROM_CHANNEL_IBSS))
- geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
+ geo_ch->flags |= IEEE80211_CHAN_NO_IR;
if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
- geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
+ geo_ch->flags |= IEEE80211_CHAN_NO_IR;
if (ch->flags & EEPROM_CHANNEL_RADAR)
geo_ch->flags |= IEEE80211_CHAN_RADAR;
@@ -3749,10 +3799,10 @@ il_full_rxon_required(struct il_priv *il)
/* These items are only settable from the full RXON command */
CHK(!il_is_associated(il));
- CHK(!ether_addr_equal(staging->bssid_addr, active->bssid_addr));
- CHK(!ether_addr_equal(staging->node_addr, active->node_addr));
- CHK(!ether_addr_equal(staging->wlap_bssid_addr,
- active->wlap_bssid_addr));
+ CHK(!ether_addr_equal_64bits(staging->bssid_addr, active->bssid_addr));
+ CHK(!ether_addr_equal_64bits(staging->node_addr, active->node_addr));
+ CHK(!ether_addr_equal_64bits(staging->wlap_bssid_addr,
+ active->wlap_bssid_addr));
CHK_NEQ(staging->dev_type, active->dev_type);
CHK_NEQ(staging->channel, active->channel);
CHK_NEQ(staging->air_propagation, active->air_propagation);
@@ -4663,6 +4713,7 @@ il_force_reset(struct il_priv *il, bool external)
return 0;
}
+EXPORT_SYMBOL(il_force_reset);
int
il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
@@ -4704,8 +4755,8 @@ out:
}
EXPORT_SYMBOL(il_mac_change_interface);
-void
-il_mac_flush(struct ieee80211_hw *hw, bool drop)
+void il_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u32 queues, bool drop)
{
struct il_priv *il = hw->priv;
unsigned long timeout = jiffies + msecs_to_jiffies(500);
@@ -4891,7 +4942,7 @@ il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
}
EXPORT_SYMBOL(il_add_beacon_time);
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int
il_pci_suspend(struct device *device)
@@ -4942,7 +4993,7 @@ il_pci_resume(struct device *device)
SIMPLE_DEV_PM_OPS(il_pm_ops, il_pci_suspend, il_pci_resume);
EXPORT_SYMBOL(il_pm_ops);
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
static void
il_update_qos(struct il_priv *il)
@@ -4975,7 +5026,7 @@ il_mac_config(struct ieee80211_hw *hw, u32 changed)
struct il_priv *il = hw->priv;
const struct il_channel_info *ch_info;
struct ieee80211_conf *conf = &hw->conf;
- struct ieee80211_channel *channel = conf->channel;
+ struct ieee80211_channel *channel = conf->chandef.chan;
struct il_ht_config *ht_conf = &il->current_ht_config;
unsigned long flags = 0;
int ret = 0;
@@ -5085,6 +5136,7 @@ set_ch_out:
}
if (changed & (IEEE80211_CONF_CHANGE_PS | IEEE80211_CONF_CHANGE_IDLE)) {
+ il->power_data.ps_disabled = !(conf->flags & IEEE80211_CONF_PS);
ret = il_power_update_mode(il, false);
if (ret)
D_MAC80211("Error setting sleep level\n");
@@ -5311,6 +5363,17 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
D_MAC80211("BSSID %pM\n", bss_conf->bssid);
/*
+ * On passive channel we wait with blocked queues to see if
+ * there is traffic on that channel. If no frame will be
+ * received (what is very unlikely since scan detects AP on
+ * that channel, but theoretically possible), mac80211 associate
+ * procedure will time out and mac80211 will call us with NULL
+ * bssid. We have to unblock queues on such condition.
+ */
+ if (is_zero_ether_addr(bss_conf->bssid))
+ il_wake_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+
+ /*
* If there is currently a HW scan going on in the background,
* then we need to cancel it, otherwise sometimes we are not
* able to authenticate (FIXME: why ?)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 12:34:48 +0000