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authorJohn W. Linville <linville@tuxdriver.com>2009-12-30 15:25:08 -0500
committerJohn W. Linville <linville@tuxdriver.com>2009-12-30 15:25:08 -0500
commit891dc5e73783eeabd2a704a9425e2a199b39c9f9 (patch)
tree9b4478941c486d47a71bfce455b896c5dda7e811
parente1781ed33a8809c58ad6c3b6d432d656446efa43 (diff)
parent55afc80b2ab100618c17af77915f75307b6bd5d1 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6master-2009-12-30
Conflicts: drivers/net/wireless/libertas/scan.c
-rw-r--r--drivers/net/wireless/ath/ath5k/base.c18
-rw-r--r--drivers/net/wireless/ath/ath9k/mac.h3
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c14
-rw-r--r--drivers/net/wireless/ath/ath9k/pci.c2
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c2
-rw-r--r--drivers/net/wireless/b43/dma.c197
-rw-r--r--drivers/net/wireless/b43/dma.h7
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.c10
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.h1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rs.c2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c48
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c41
-rw-r--r--drivers/net/wireless/iwmc3200wifi/iwm.h2
-rw-r--r--drivers/net/wireless/libertas/scan.c22
-rw-r--r--drivers/net/wireless/libertas_tf/main.c1
-rw-r--r--drivers/net/wireless/orinoco/wext.c6
-rw-r--r--drivers/net/wireless/rt2x00/rt2800usb.c1
-rw-r--r--drivers/net/wireless/wl12xx/wl1251_boot.c2
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_cmd.c4
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.c140
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.h3
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c3
-rw-r--r--include/net/mac80211.h2
-rw-r--r--net/mac80211/ibss.c4
-rw-r--r--net/mac80211/tx.c4
-rw-r--r--net/mac80211/util.c12
-rw-r--r--net/wireless/mlme.c13
-rw-r--r--net/wireless/scan.c13
28 files changed, 130 insertions, 447 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 20c7e5b450a..fdfaf0f618f 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1903,17 +1903,6 @@ accept:
rxs->noise = sc->ah->ah_noise_floor;
rxs->signal = rxs->noise + rs.rs_rssi;
- /* An rssi of 35 indicates you should be able use
- * 54 Mbps reliably. A more elaborate scheme can be used
- * here but it requires a map of SNR/throughput for each
- * possible mode used */
- rxs->qual = rs.rs_rssi * 100 / 35;
-
- /* rssi can be more than 35 though, anything above that
- * should be considered at 100% */
- if (rxs->qual > 100)
- rxs->qual = 100;
-
rxs->antenna = rs.rs_antenna;
rxs->rate_idx = ath5k_hw_to_driver_rix(sc, rs.rs_rate);
rxs->flag |= ath5k_rx_decrypted(sc, ds, skb, &rs);
@@ -2381,6 +2370,9 @@ ath5k_init(struct ath5k_softc *sc)
*/
ath5k_stop_locked(sc);
+ /* Set PHY calibration interval */
+ ah->ah_cal_intval = ath5k_calinterval;
+
/*
* The basic interface to setting the hardware in a good
* state is ``reset''. On return the hardware is known to
@@ -2408,10 +2400,6 @@ ath5k_init(struct ath5k_softc *sc)
/* Set ack to be sent at low bit-rates */
ath5k_hw_set_ack_bitrate_high(ah, false);
-
- /* Set PHY calibration inteval */
- ah->ah_cal_intval = ath5k_calinterval;
-
ret = 0;
done:
mmiowb();
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 0c87771383f..e185479e295 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -77,6 +77,9 @@
#define ATH9K_TXERR_XTXOP 0x08
#define ATH9K_TXERR_TIMER_EXPIRED 0x10
#define ATH9K_TX_ACKED 0x20
+#define ATH9K_TXERR_MASK \
+ (ATH9K_TXERR_XRETRY | ATH9K_TXERR_FILT | ATH9K_TXERR_FIFO | \
+ ATH9K_TXERR_XTXOP | ATH9K_TXERR_TIMER_EXPIRED)
#define ATH9K_TX_BA 0x01
#define ATH9K_TX_PWRMGMT 0x02
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 446bd23756e..79fbbda1549 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2504,6 +2504,9 @@ static void ath9k_stop(struct ieee80211_hw *hw)
return; /* another wiphy still in use */
}
+ /* Ensure HW is awake when we try to shut it down. */
+ ath9k_ps_wakeup(sc);
+
if (ah->btcoex_hw.enabled) {
ath9k_hw_btcoex_disable(ah);
if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
@@ -2524,6 +2527,9 @@ static void ath9k_stop(struct ieee80211_hw *hw)
/* disable HAL and put h/w to sleep */
ath9k_hw_disable(ah);
ath9k_hw_configpcipowersave(ah, 1, 1);
+ ath9k_ps_restore(sc);
+
+ /* Finally, put the chip in FULL SLEEP mode */
ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP);
sc->sc_flags |= SC_OP_INVALID;
@@ -2637,8 +2643,10 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) ||
(sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) ||
(sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) {
+ ath9k_ps_wakeup(sc);
ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
ath_beacon_return(sc, avp);
+ ath9k_ps_restore(sc);
}
sc->sc_flags &= ~SC_OP_BEACONS;
@@ -3087,15 +3095,21 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
case IEEE80211_AMPDU_RX_STOP:
break;
case IEEE80211_AMPDU_TX_START:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_start(sc, sta, tid, ssn);
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_STOP:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_stop(sc, sta, tid);
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_resume(sc, sta, tid);
+ ath9k_ps_restore(sc);
break;
default:
ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 5321f735e5a..f7af5ea5475 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -96,7 +96,7 @@ static void ath_pci_bt_coex_prep(struct ath_common *common)
pci_write_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, aspm);
}
-const static struct ath_bus_ops ath_pci_bus_ops = {
+static const struct ath_bus_ops ath_pci_bus_ops = {
.read_cachesize = ath_pci_read_cachesize,
.cleanup = ath_pci_cleanup,
.eeprom_read = ath_pci_eeprom_read,
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 1e813bbf474..fa12b9060b0 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2072,7 +2072,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
&txq->axq_q, lastbf->list.prev);
txq->axq_depth--;
- txok = !(ds->ds_txstat.ts_status & ATH9K_TXERR_FILT);
+ txok = !(ds->ds_txstat.ts_status & ATH9K_TXERR_MASK);
txq->axq_tx_inprogress = false;
spin_unlock_bh(&txq->axq_lock);
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 5dd8a210ac2..615af22c49f 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -383,160 +383,44 @@ static inline
}
}
-/* Check if a DMA region fits the device constraints.
- * Returns true, if the region is OK for usage with this device. */
-static inline bool b43_dma_address_ok(struct b43_dmaring *ring,
- dma_addr_t addr, size_t size)
-{
- switch (ring->type) {
- case B43_DMA_30BIT:
- if ((u64)addr + size > (1ULL << 30))
- return 0;
- break;
- case B43_DMA_32BIT:
- if ((u64)addr + size > (1ULL << 32))
- return 0;
- break;
- case B43_DMA_64BIT:
- /* Currently we can't have addresses beyond
- * 64bit in the kernel. */
- break;
- }
- return 1;
-}
-
-#define is_4k_aligned(addr) (((u64)(addr) & 0x0FFFull) == 0)
-#define is_8k_aligned(addr) (((u64)(addr) & 0x1FFFull) == 0)
-
-static void b43_unmap_and_free_ringmem(struct b43_dmaring *ring, void *base,
- dma_addr_t dmaaddr, size_t size)
-{
- ssb_dma_unmap_single(ring->dev->dev, dmaaddr, size, DMA_TO_DEVICE);
- free_pages((unsigned long)base, get_order(size));
-}
-
-static void * __b43_get_and_map_ringmem(struct b43_dmaring *ring,
- dma_addr_t *dmaaddr, size_t size,
- gfp_t gfp_flags)
-{
- void *base;
-
- base = (void *)__get_free_pages(gfp_flags, get_order(size));
- if (!base)
- return NULL;
- memset(base, 0, size);
- *dmaaddr = ssb_dma_map_single(ring->dev->dev, base, size,
- DMA_TO_DEVICE);
- if (ssb_dma_mapping_error(ring->dev->dev, *dmaaddr)) {
- free_pages((unsigned long)base, get_order(size));
- return NULL;
- }
-
- return base;
-}
-
-static void * b43_get_and_map_ringmem(struct b43_dmaring *ring,
- dma_addr_t *dmaaddr, size_t size)
-{
- void *base;
-
- base = __b43_get_and_map_ringmem(ring, dmaaddr, size,
- GFP_KERNEL);
- if (!base) {
- b43err(ring->dev->wl, "Failed to allocate or map pages "
- "for DMA ringmemory\n");
- return NULL;
- }
- if (!b43_dma_address_ok(ring, *dmaaddr, size)) {
- /* The memory does not fit our device constraints.
- * Retry with GFP_DMA set to get lower memory. */
- b43_unmap_and_free_ringmem(ring, base, *dmaaddr, size);
- base = __b43_get_and_map_ringmem(ring, dmaaddr, size,
- GFP_KERNEL | GFP_DMA);
- if (!base) {
- b43err(ring->dev->wl, "Failed to allocate or map pages "
- "in the GFP_DMA region for DMA ringmemory\n");
- return NULL;
- }
- if (!b43_dma_address_ok(ring, *dmaaddr, size)) {
- b43_unmap_and_free_ringmem(ring, base, *dmaaddr, size);
- b43err(ring->dev->wl, "Failed to allocate DMA "
- "ringmemory that fits device constraints\n");
- return NULL;
- }
- }
- /* We expect the memory to be 4k aligned, at least. */
- if (B43_WARN_ON(!is_4k_aligned(*dmaaddr))) {
- b43_unmap_and_free_ringmem(ring, base, *dmaaddr, size);
- return NULL;
- }
-
- return base;
-}
-
static int alloc_ringmemory(struct b43_dmaring *ring)
{
- unsigned int required;
- void *base;
- dma_addr_t dmaaddr;
-
- /* There are several requirements to the descriptor ring memory:
- * - The memory region needs to fit the address constraints for the
- * device (same as for frame buffers).
- * - For 30/32bit DMA devices, the descriptor ring must be 4k aligned.
- * - For 64bit DMA devices, the descriptor ring must be 8k aligned.
+ gfp_t flags = GFP_KERNEL;
+
+ /* The specs call for 4K buffers for 30- and 32-bit DMA with 4K
+ * alignment and 8K buffers for 64-bit DMA with 8K alignment. Testing
+ * has shown that 4K is sufficient for the latter as long as the buffer
+ * does not cross an 8K boundary.
+ *
+ * For unknown reasons - possibly a hardware error - the BCM4311 rev
+ * 02, which uses 64-bit DMA, needs the ring buffer in very low memory,
+ * which accounts for the GFP_DMA flag below.
+ *
+ * The flags here must match the flags in free_ringmemory below!
*/
-
if (ring->type == B43_DMA_64BIT)
- required = ring->nr_slots * sizeof(struct b43_dmadesc64);
- else
- required = ring->nr_slots * sizeof(struct b43_dmadesc32);
- if (B43_WARN_ON(required > 0x1000))
+ flags |= GFP_DMA;
+ ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
+ B43_DMA_RINGMEMSIZE,
+ &(ring->dmabase), flags);
+ if (!ring->descbase) {
+ b43err(ring->dev->wl, "DMA ringmemory allocation failed\n");
return -ENOMEM;
-
- ring->alloc_descsize = 0x1000;
- base = b43_get_and_map_ringmem(ring, &dmaaddr, ring->alloc_descsize);
- if (!base)
- return -ENOMEM;
- ring->alloc_descbase = base;
- ring->alloc_dmabase = dmaaddr;
-
- if ((ring->type != B43_DMA_64BIT) || is_8k_aligned(dmaaddr)) {
- /* We're on <=32bit DMA, or we already got 8k aligned memory.
- * That's all we need, so we're fine. */
- ring->descbase = base;
- ring->dmabase = dmaaddr;
- return 0;
- }
- b43_unmap_and_free_ringmem(ring, base, dmaaddr, ring->alloc_descsize);
-
- /* Ok, we failed at the 8k alignment requirement.
- * Try to force-align the memory region now. */
- ring->alloc_descsize = 0x2000;
- base = b43_get_and_map_ringmem(ring, &dmaaddr, ring->alloc_descsize);
- if (!base)
- return -ENOMEM;
- ring->alloc_descbase = base;
- ring->alloc_dmabase = dmaaddr;
-
- if (is_8k_aligned(dmaaddr)) {
- /* We're already 8k aligned. That Ok, too. */
- ring->descbase = base;
- ring->dmabase = dmaaddr;
- return 0;
}
- /* Force-align it to 8k */
- ring->descbase = (void *)((u8 *)base + 0x1000);
- ring->dmabase = dmaaddr + 0x1000;
- B43_WARN_ON(!is_8k_aligned(ring->dmabase));
+ memset(ring->descbase, 0, B43_DMA_RINGMEMSIZE);
return 0;
}
static void free_ringmemory(struct b43_dmaring *ring)
{
- b43_unmap_and_free_ringmem(ring, ring->alloc_descbase,
- ring->alloc_dmabase, ring->alloc_descsize);
+ gfp_t flags = GFP_KERNEL;
+
+ if (ring->type == B43_DMA_64BIT)
+ flags |= GFP_DMA;
+
+ ssb_dma_free_consistent(ring->dev->dev, B43_DMA_RINGMEMSIZE,
+ ring->descbase, ring->dmabase, flags);
}
/* Reset the RX DMA channel */
@@ -646,14 +530,29 @@ static bool b43_dma_mapping_error(struct b43_dmaring *ring,
if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
return 1;
- if (!b43_dma_address_ok(ring, addr, buffersize)) {
- /* We can't support this address. Unmap it again. */
- unmap_descbuffer(ring, addr, buffersize, dma_to_device);
- return 1;
+ switch (ring->type) {
+ case B43_DMA_30BIT:
+ if ((u64)addr + buffersize > (1ULL << 30))
+ goto address_error;
+ break;
+ case B43_DMA_32BIT:
+ if ((u64)addr + buffersize > (1ULL << 32))
+ goto address_error;
+ break;
+ case B43_DMA_64BIT:
+ /* Currently we can't have addresses beyond
+ * 64bit in the kernel. */
+ break;
}
/* The address is OK. */
return 0;
+
+address_error:
+ /* We can't support this address. Unmap it again. */
+ unmap_descbuffer(ring, addr, buffersize, dma_to_device);
+
+ return 1;
}
static bool b43_rx_buffer_is_poisoned(struct b43_dmaring *ring, struct sk_buff *skb)
@@ -715,9 +614,6 @@ static int setup_rx_descbuffer(struct b43_dmaring *ring,
meta->dmaaddr = dmaaddr;
ring->ops->fill_descriptor(ring, desc, dmaaddr,
ring->rx_buffersize, 0, 0, 0);
- ssb_dma_sync_single_for_device(ring->dev->dev,
- ring->alloc_dmabase,
- ring->alloc_descsize, DMA_TO_DEVICE);
return 0;
}
@@ -1354,9 +1250,6 @@ static int dma_tx_fragment(struct b43_dmaring *ring,
}
/* Now transfer the whole frame. */
wmb();
- ssb_dma_sync_single_for_device(ring->dev->dev,
- ring->alloc_dmabase,
- ring->alloc_descsize, DMA_TO_DEVICE);
ops->poke_tx(ring, next_slot(ring, slot));
return 0;
diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index e607b392314..f7ab37c4cdb 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -157,6 +157,7 @@ struct b43_dmadesc_generic {
} __attribute__ ((__packed__));
/* Misc DMA constants */
+#define B43_DMA_RINGMEMSIZE PAGE_SIZE
#define B43_DMA0_RX_FRAMEOFFSET 30
/* DMA engine tuning knobs */
@@ -246,12 +247,6 @@ struct b43_dmaring {
/* The QOS priority assigned to this ring. Only used for TX rings.
* This is the mac80211 "queue" value. */
u8 queue_prio;
- /* Pointers and size of the originally allocated and mapped memory
- * region for the descriptor ring. */
- void *alloc_descbase;
- dma_addr_t alloc_dmabase;
- unsigned int alloc_descsize;
- /* Pointer to our wireless device. */
struct b43_wldev *dev;
#ifdef CONFIG_B43_DEBUG
/* Maximum number of used slots. */
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index d1bab141508..28ffe4c826d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -681,19 +681,13 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
snr = rx_stats_sig_avg / rx_stats_noise_diff;
rx_status.noise = rx_status.signal -
iwl3945_calc_db_from_ratio(snr);
- rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal,
- rx_status.noise);
-
- /* If noise info not available, calculate signal quality indicator (%)
- * using just the dBm signal level. */
} else {
rx_status.noise = priv->last_rx_noise;
- rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, 0);
}
- IWL_DEBUG_STATS(priv, "Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n",
- rx_status.signal, rx_status.noise, rx_status.qual,
+ IWL_DEBUG_STATS(priv, "Rssi %d noise %d sig_avg %d noise_diff %d\n",
+ rx_status.signal, rx_status.noise,
rx_stats_sig_avg, rx_stats_noise_diff);
header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 28f6eb5f2cb..3ec2fe370b5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -222,7 +222,6 @@ struct iwl3945_ibss_seq {
*
*****************************************************************************/
extern int iwl3945_calc_db_from_ratio(int sig_ratio);
-extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
extern void iwl3945_rx_replenish(void *data);
extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index fe511cbf012..b93e4915819 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -150,7 +150,7 @@ static s32 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = {
};
/* mbps, mcs */
-const static struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
+static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
{ "1", "BPSK DSSS"},
{ "2", "QPSK DSSS"},
{"5.5", "BPSK CCK"},
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index f5c87e72660..6f36b6e79f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -650,47 +650,6 @@ void iwl_reply_statistics(struct iwl_priv *priv,
}
EXPORT_SYMBOL(iwl_reply_statistics);
-#define PERFECT_RSSI (-20) /* dBm */
-#define WORST_RSSI (-95) /* dBm */
-#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
-
-/* Calculate an indication of rx signal quality (a percentage, not dBm!).
- * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
- * about formulas used below. */
-static int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm)
-{
- int sig_qual;
- int degradation = PERFECT_RSSI - rssi_dbm;
-
- /* If we get a noise measurement, use signal-to-noise ratio (SNR)
- * as indicator; formula is (signal dbm - noise dbm).
- * SNR at or above 40 is a great signal (100%).
- * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
- * Weakest usable signal is usually 10 - 15 dB SNR. */
- if (noise_dbm) {
- if (rssi_dbm - noise_dbm >= 40)
- return 100;
- else if (rssi_dbm < noise_dbm)
- return 0;
- sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
-
- /* Else use just the signal level.
- * This formula is a least squares fit of data points collected and
- * compared with a reference system that had a percentage (%) display
- * for signal quality. */
- } else
- sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
- (15 * RSSI_RANGE + 62 * degradation)) /
- (RSSI_RANGE * RSSI_RANGE);
-
- if (sig_qual > 100)
- sig_qual = 100;
- else if (sig_qual < 1)
- sig_qual = 0;
-
- return sig_qual;
-}
-
/* 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)
@@ -1101,11 +1060,8 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
if (iwl_is_associated(priv) &&
!test_bit(STATUS_SCANNING, &priv->status)) {
rx_status.noise = priv->last_rx_noise;
- rx_status.qual = iwl_calc_sig_qual(rx_status.signal,
- rx_status.noise);
} else {
rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
- rx_status.qual = iwl_calc_sig_qual(rx_status.signal, 0);
}
/* Reset beacon noise level if not associated. */
@@ -1118,8 +1074,8 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
iwl_dbg_report_frame(priv, phy_res, len, header, 1);
#endif
iwl_dbg_log_rx_data_frame(priv, len, header);
- IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
- rx_status.signal, rx_status.noise, rx_status.qual,
+ IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, TSF %llu\n",
+ rx_status.signal, rx_status.noise,
(unsigned long long)rx_status.mactime);
/*
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 6533122ed87..10b0aa8024c 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1299,47 +1299,6 @@ int iwl3945_calc_db_from_ratio(int sig_ratio)
return (int)ratio2dB[sig_ratio];
}
-#define PERFECT_RSSI (-20) /* dBm */
-#define WORST_RSSI (-95) /* dBm */
-#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
-
-/* Calculate an indication of rx signal quality (a percentage, not dBm!).
- * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
- * about formulas used below. */
-int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
-{
- int sig_qual;
- int degradation = PERFECT_RSSI - rssi_dbm;
-
- /* If we get a noise measurement, use signal-to-noise ratio (SNR)
- * as indicator; formula is (signal dbm - noise dbm).
- * SNR at or above 40 is a great signal (100%).
- * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
- * Weakest usable signal is usually 10 - 15 dB SNR. */
- if (noise_dbm) {
- if (rssi_dbm - noise_dbm >= 40)
- return 100;
- else if (rssi_dbm < noise_dbm)
- return 0;
- sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
-
- /* Else use just the signal level.
- * This formula is a least squares fit of data points collected and
- * compared with a reference system that had a percentage (%) display
- * for signal quality. */
- } else
- sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
- (15 * RSSI_RANGE + 62 * degradation)) /
- (RSSI_RANGE * RSSI_RANGE);
-
- if (sig_qual > 100)
- sig_qual = 100;
- else if (sig_qual < 1)
- sig_qual = 0;
-
- return sig_qual;
-}
-
/**
* iwl3945_rx_handle - Main entry function for receiving responses from uCode
*
diff --git a/drivers/net/wireless/iwmc3200wifi/iwm.h b/drivers/net/wireless/iwmc3200wifi/iwm.h
index 79ffa3b98d7..842811142be 100644
--- a/drivers/net/wireless/iwmc3200wifi/iwm.h
+++ b/drivers/net/wireless/iwmc3200wifi/iwm.h
@@ -268,7 +268,7 @@ struct iwm_priv {
struct sk_buff_head rx_list;
struct list_head rx_tickets;
- struct list_head rx_packets[IWM_RX_ID_HASH];
+ struct list_head rx_packets[IWM_RX_ID_HASH + 1];
struct workqueue_struct *rx_wq;
struct work_struct rx_worker;
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 4a0c3e3cd3b..220361e69cd 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -567,11 +567,8 @@ int lbs_scan_networks(struct lbs_private *priv, int full_scan)
chan_count = lbs_scan_create_channel_list(priv, chan_list);
netif_stop_queue(priv->dev);
- netif_carrier_off(priv->dev);
- if (priv->mesh_dev) {
+ if (priv->mesh_dev)
netif_stop_queue(priv->mesh_dev);
- netif_carrier_off(priv->mesh_dev);
- }
/* Prepare to continue an interrupted scan */
lbs_deb_scan("chan_count %d, scan_channel %d\n",
@@ -635,16 +632,13 @@ out2:
priv->scan_channel = 0;
out:
- if (priv->connect_status == LBS_CONNECTED) {
- netif_carrier_on(priv->dev);
- if (!priv->tx_pending_len)
- netif_wake_queue(priv->dev);
- }
- if (priv->mesh_dev && lbs_mesh_connected(priv)) {
- netif_carrier_on(priv->mesh_dev);
- if (!priv->tx_pending_len)
- netif_wake_queue(priv->mesh_dev);
- }
+ if (priv->connect_status == LBS_CONNECTED && !priv->tx_pending_len)
+ netif_wake_queue(priv->dev);
+
+ if (priv->mesh_dev && lbs_mesh_connected(priv) &&
+ !priv->tx_pending_len)
+ netif_wake_queue(priv->mesh_dev);
+
kfree(chan_list);
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index 15a367680f5..ba3eb0101d5 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -495,7 +495,6 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
stats.band = IEEE80211_BAND_2GHZ;
stats.signal = prxpd->snr;
stats.noise = prxpd->nf;
- stats.qual = prxpd->snr - prxpd->nf;
/* Marvell rate index has a hole at value 4 */
if (prxpd->rx_rate > 4)
--prxpd->rx_rate;
diff --git a/drivers/net/wireless/orinoco/wext.c b/drivers/net/wireless/orinoco/wext.c
index 7698fdd6a3a..31ca241f775 100644
--- a/drivers/net/wireless/orinoco/wext.c
+++ b/drivers/net/wireless/orinoco/wext.c
@@ -23,7 +23,7 @@
#define MAX_RID_LEN 1024
/* Helper routine to record keys
- * Do not call from interrupt context */
+ * It is called under orinoco_lock so it may not sleep */
static int orinoco_set_key(struct orinoco_private *priv, int index,
enum orinoco_alg alg, const u8 *key, int key_len,
const u8 *seq, int seq_len)
@@ -32,14 +32,14 @@ static int orinoco_set_key(struct orinoco_private *priv, int index,
kzfree(priv->keys[index].seq);
if (key_len) {
- priv->keys[index].key = kzalloc(key_len, GFP_KERNEL);
+ priv->keys[index].key = kzalloc(key_len, GFP_ATOMIC);
if (!priv->keys[index].key)
goto nomem;
} else
priv->keys[index].key = NULL;
if (seq_len) {
- priv->keys[index].seq = kzalloc(seq_len, GFP_KERNEL);
+ priv->keys[index].seq = kzalloc(seq_len, GFP_ATOMIC);
if (!priv->keys[index].seq)
goto free_key;
} else
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 411655ecaf3..0510f020dcf 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -933,6 +933,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
{ USB_DEVICE(0x1737, 0x0070), USB_DEVICE_DATA(&rt2800usb_ops) },
{ USB_DEVICE(0x1737, 0x0071), USB_DEVICE_DATA(&rt2800usb_ops) },
{ USB_DEVICE(0x1737, 0x0077), USB_DEVICE_DATA(&rt2800usb_ops) },
+ { USB_DEVICE(0x1737, 0x0079), USB_DEVICE_DATA(&rt2800usb_ops) },
/* Logitec */
{ USB_DEVICE(0x0789, 0x0162), USB_DEVICE_DATA(&rt2800usb_ops) },
{ USB_DEVICE(0x0789, 0x0163), USB_DEVICE_DATA(&rt2800usb_ops) },
diff --git a/drivers/net/wireless/wl12xx/wl1251_boot.c b/drivers/net/wireless/wl12xx/wl1251_boot.c
index 2e733e7bdfd..28a80867408 100644
--- a/drivers/net/wireless/wl12xx/wl1251_boot.c
+++ b/drivers/net/wireless/wl12xx/wl1251_boot.c
@@ -256,7 +256,7 @@ int wl1251_boot_run_firmware(struct wl1251 *wl)
}
}
- if (loop >= INIT_LOOP) {
+ if (loop > INIT_LOOP) {
wl1251_error("timeout waiting for the hardware to "
"complete initialization");
return -EIO;
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.c b/drivers/net/wireless/wl12xx/wl1271_cmd.c
index b5eb9edc63a..a74259bb596 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.c
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.c
@@ -796,7 +796,7 @@ out:
return ret;
}
-static int wl1271_build_basic_rates(char *rates, u8 band)
+static int wl1271_build_basic_rates(u8 *rates, u8 band)
{
u8 index = 0;
@@ -823,7 +823,7 @@ static int wl1271_build_basic_rates(char *rates, u8 band)
return index;
}
-static int wl1271_build_extended_rates(char *rates, u8 band)
+static int wl1271_build_extended_rates(u8 *rates, u8 band)
{
u8 index = 0;
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index dfa1b9bc22c..7ca95c414fa 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -1325,151 +1325,11 @@ int zd_chip_set_basic_rates(struct zd_chip *chip, u16 cr_rates)
return r;
}
-static int ofdm_qual_db(u8 status_quality, u8 zd_rate, unsigned int size)
-{
- static const u16 constants[] = {
- 715, 655, 585, 540, 470, 410, 360, 315,
- 270, 235, 205, 175, 150, 125, 105, 85,
- 65, 50, 40, 25, 15
- };
-
- int i;
- u32 x;
-
- /* It seems that their quality parameter is somehow per signal
- * and is now transferred per bit.
- */
- switch (zd_rate) {
- case ZD_OFDM_RATE_6M:
- case ZD_OFDM_RATE_12M:
- case ZD_OFDM_RATE_24M:
- size *= 2;
- break;
- case ZD_OFDM_RATE_9M:
- case ZD_OFDM_RATE_18M:
- case ZD_OFDM_RATE_36M:
- case ZD_OFDM_RATE_54M:
- size *= 4;
- size /= 3;
- break;
- case ZD_OFDM_RATE_48M:
- size *= 3;
- size /= 2;
- break;
- default:
- return -EINVAL;
- }
-
- x = (10000 * status_quality)/size;
- for (i = 0; i < ARRAY_SIZE(constants); i++) {
- if (x > constants[i])
- break;
- }
-
- switch (zd_rate) {
- case ZD_OFDM_RATE_6M:
- case ZD_OFDM_RATE_9M:
- i += 3;
- break;
- case ZD_OFDM_RATE_12M:
- case ZD_OFDM_RATE_18M:
- i += 5;
- break;
- case ZD_OFDM_RATE_24M:
- case ZD_OFDM_RATE_36M:
- i += 9;
- break;
- case ZD_OFDM_RATE_48M:
- case ZD_OFDM_RATE_54M:
- i += 15;
- break;
- default:
- return -EINVAL;
- }
-
- return i;
-}
-
-static int ofdm_qual_percent(u8 status_quality, u8 zd_rate, unsigned int size)
-{
- int r;
-
- r = ofdm_qual_db(status_quality, zd_rate, size);
- ZD_ASSERT(r >= 0);
- if (r < 0)
- r = 0;
-
- r = (r * 100)/29;
- return r <= 100 ? r : 100;
-}
-
-static unsigned int log10times100(unsigned int x)
-{
- static const u8 log10[] = {
- 0,
- 0, 30, 47, 60, 69, 77, 84, 90, 95, 100,
- 104, 107, 111, 114, 117, 120, 123, 125, 127, 130,
- 132, 134, 136, 138, 139, 141, 143, 144, 146, 147,
- 149, 150, 151, 153, 154, 155, 156, 157, 159, 160,
- 161, 162, 163, 164, 165, 166, 167, 168, 169, 169,
- 170, 171, 172, 173, 174, 174, 175, 176, 177, 177,
- 178, 179, 179, 180, 181, 181, 182, 183, 183, 184,
- 185, 185, 186, 186, 187, 188, 188, 189, 189, 190,
- 190, 191, 191, 192, 192, 193, 193, 194, 194, 195,
- 195, 196, 196, 197, 197, 198, 198, 199, 199, 200,
- 200, 200, 201, 201, 202, 202, 202, 203, 203, 204,
- 204, 204, 205, 205, 206, 206, 206, 207, 207, 207,
- 208, 208, 208, 209, 209, 210, 210, 210, 211, 211,
- 211, 212, 212, 212, 213, 213, 213, 213, 214, 214,
- 214, 215, 215, 215, 216, 216, 216, 217, 217, 217,
- 217, 218, 218, 218, 219, 219, 219, 219, 220, 220,
- 220, 220, 221, 221, 221, 222, 222, 222, 222, 223,
- 223, 223, 223, 224, 224, 224, 224,
- };
-
- return x < ARRAY_SIZE(log10) ? log10[x] : 225;
-}
-
-enum {
- MAX_CCK_EVM_DB = 45,
-};
-
-static int cck_evm_db(u8 status_quality)
-{
- return (20 * log10times100(status_quality)) / 100;
-}
-
-static int cck_snr_db(u8 status_quality)
-{
- int r = MAX_CCK_EVM_DB - cck_evm_db(status_quality);
- ZD_ASSERT(r >= 0);
- return r;
-}
-
-static int cck_qual_percent(u8 status_quality)
-{
- int r;
-
- r = cck_snr_db(status_quality);
- r = (100*r)/17;
- return r <= 100 ? r : 100;
-}
-
static inline u8 zd_rate_from_ofdm_plcp_header(const void *rx_frame)
{
return ZD_OFDM | zd_ofdm_plcp_header_rate(rx_frame);
}
-u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size,
- const struct rx_status *status)
-{
- return (status->frame_status&ZD_RX_OFDM) ?
- ofdm_qual_percent(status->signal_quality_ofdm,
- zd_rate_from_ofdm_plcp_header(rx_frame),
- size) :
- cck_qual_percent(status->signal_quality_cck);
-}
-
/**
* zd_rx_rate - report zd-rate
* @rx_frame - received frame
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.h b/drivers/net/wireless/zd1211rw/zd_chip.h
index 9fd8f3508d6..f8bbf7d302a 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.h
+++ b/drivers/net/wireless/zd1211rw/zd_chip.h
@@ -929,9 +929,6 @@ static inline int zd_get_beacon_interval(struct zd_chip *chip, u32 *interval)
struct rx_status;
-u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size,
- const struct rx_status *status);
-
u8 zd_rx_rate(const void *rx_frame, const struct rx_status *status);
struct zd_mc_hash {
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index c4f41d0016c..f4a4178c8d9 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -828,9 +828,6 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length)
stats.freq = zd_channels[_zd_chip_get_channel(&mac->chip) - 1].center_freq;
stats.band = IEEE80211_BAND_2GHZ;
stats.signal = status->signal_strength;
- stats.qual = zd_rx_qual_percent(buffer,
- length - sizeof(struct rx_status),
- status);
rate = zd_rx_rate(buffer, status);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5ee666ae4c8..f073a2a5057 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -547,7 +547,6 @@ enum mac80211_rx_flags {
* unspecified depending on the hardware capabilities flags
* @IEEE80211_HW_SIGNAL_*
* @noise: noise when receiving this frame, in dBm.
- * @qual: overall signal quality indication, in percent (0-100).
* @antenna: antenna used
* @rate_idx: index of data rate into band's supported rates or MCS index if
* HT rates are use (RX_FLAG_HT)
@@ -559,7 +558,6 @@ struct ieee80211_rx_status {
int freq;
int signal;
int noise;
- int __deprecated qual;
int antenna;
int rate_idx;
int flag;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 621a54c0573..5bcde4c3fba 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -387,6 +387,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid,u8 *addr, u32 supp_rates)
{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int band = local->hw.conf.channel->band;
@@ -402,6 +403,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
return NULL;
}
+ if (ifibss->state == IEEE80211_IBSS_MLME_SEARCH)
+ return NULL;
+
if (compare_ether_addr(bssid, sdata->u.ibss.bssid))
return NULL;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1593a2ffd67..7bba49d2b6c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1418,6 +1418,10 @@ static bool need_dynamic_ps(struct ieee80211_local *local)
if (!local->ps_sdata)
return false;
+ /* No point if we're going to suspend */
+ if (local->quiescing)
+ return false;
+
return true;
}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 4b930308b1f..7e38858a928 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1084,7 +1084,19 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* restart hardware */
if (local->open_count) {
+ /*
+ * Upon resume hardware can sometimes be goofy due to
+ * various platform / driver / bus issues, so restarting
+ * the device may at times not work immediately. Propagate
+ * the error.
+ */
res = drv_start(local);
+ if (res) {
+ WARN(local->suspended, "Harware became unavailable "
+ "upon resume. This is could be a software issue"
+ "prior to suspend or a harware issue\n");
+ return res;
+ }
ieee80211_led_radio(local, true);
}
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 3dba19e1727..94d151f6f73 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -93,7 +93,18 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
}
}
- WARN_ON(!bss);
+ /*
+ * We might be coming here because the driver reported
+ * a successful association at the same time as the
+ * user requested a deauth. In that case, we will have
+ * removed the BSS from the auth_bsses list due to the
+ * deauth request when the assoc response makes it. If
+ * the two code paths acquire the lock the other way
+ * around, that's just the standard situation of a
+ * deauth being requested while connected.
+ */
+ if (!bss)
+ goto out;
} else if (wdev->conn) {
cfg80211_sme_failed_assoc(wdev);
/*
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 12dfa62aad1..0c2cbbebca9 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -601,7 +601,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
struct cfg80211_registered_device *rdev;
struct wiphy *wiphy;
struct iw_scan_req *wreq = NULL;
- struct cfg80211_scan_request *creq;
+ struct cfg80211_scan_request *creq = NULL;
int i, err, n_channels = 0;
enum ieee80211_band band;
@@ -694,8 +694,10 @@ int cfg80211_wext_siwscan(struct net_device *dev,
/* translate "Scan for SSID" request */
if (wreq) {
if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
- if (wreq->essid_len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
+ if (wreq->essid_len > IEEE80211_MAX_SSID_LEN) {
+ err = -EINVAL;
+ goto out;
+ }
memcpy(creq->ssids[0].ssid, wreq->essid, wreq->essid_len);
creq->ssids[0].ssid_len = wreq->essid_len;
}
@@ -707,12 +709,15 @@ int cfg80211_wext_siwscan(struct net_device *dev,
err = rdev->ops->scan(wiphy, dev, creq);
if (err) {
rdev->scan_req = NULL;
- kfree(creq);
+ /* creq will be freed below */
} else {
nl80211_send_scan_start(rdev, dev);
+ /* creq now owned by driver */
+ creq = NULL;
dev_hold(dev);
}
out:
+ kfree(creq);
cfg80211_unlock_rdev(rdev);
return err;
}