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* [PATCH 06/10] ath5k: use common curbssid, bssidmask and macaddr
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

The ah_sta_id was really being used as the macaddr.
ath5k still does not use the association ID now passed
up by mac80211, that can be fixed later.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath5k/ath5k.h  |    9 -------
 drivers/net/wireless/ath/ath5k/attach.c |    7 ++++-
 drivers/net/wireless/ath/ath5k/base.c   |    8 ++++--
 drivers/net/wireless/ath/ath5k/pcu.c    |   38 ++++++++----------------------
 drivers/net/wireless/ath/ath5k/reset.c  |   13 ++++++----
 5 files changed, 28 insertions(+), 47 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 93a9c1f..f46a92e 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1060,14 +1060,6 @@ struct ath5k_hw {
 	u8			ah_def_ant;
 	bool			ah_software_retry;
 
-	u8			ah_sta_id[ETH_ALEN];
-
-	/* Current BSSID we are trying to assoc to / create.
-	 * This is passed by mac80211 on config_interface() and cached here for
-	 * use in resets */
-	u8			ah_bssid[ETH_ALEN];
-	u8			ah_bssid_mask[ETH_ALEN];
-
 	int			ah_gpio_npins;
 
 	struct ath5k_capabilities ah_capabilities;
@@ -1196,7 +1188,6 @@ extern bool ath5k_eeprom_is_hb63(struct ath5k_hw *ah);
 /* Protocol Control Unit Functions */
 extern int ath5k_hw_set_opmode(struct ath5k_hw *ah);
 /* BSSID Functions */
-extern void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac);
 extern int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
 extern void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id);
 extern int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index 9a009a7..2d262c7 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -104,6 +104,7 @@ static int ath5k_hw_post(struct ath5k_hw *ah)
 struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
 {
 	struct ath5k_hw *ah;
+	struct ath_common *common;
 	struct pci_dev *pdev = sc->pdev;
 	struct ath5k_eeprom_info *ee;
 	int ret;
@@ -118,7 +119,9 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
 	}
 
 	ah->ah_sc = sc;
+	ah->ah_sc->ah = ah;
 	ah->ah_iobase = sc->iobase;
+	common = ath5k_hw_common(ah);
 
 	/*
 	 * HW information
@@ -336,8 +339,8 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
 	ath5k_hw_set_lladdr(ah, (u8[ETH_ALEN]){});
 
 	/* Set BSSID to bcast address: ff:ff:ff:ff:ff:ff for now */
-	memcpy(ah->ah_bssid, ath_bcast_mac, ETH_ALEN);
-	ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
+	memcpy(common->curbssid, ath_bcast_mac, ETH_ALEN);
+	ath5k_hw_set_associd(ah, common->curbssid, 0);
 	ath5k_hw_set_opmode(ah);
 
 	ath5k_hw_rfgain_opt_init(ah);
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index a28d795..efee68c 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1685,13 +1685,14 @@ static void
 ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
 		     struct ieee80211_rx_status *rxs)
 {
+	struct ath_common *common = ath5k_hw_common(sc->ah);
 	u64 tsf, bc_tstamp;
 	u32 hw_tu;
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
 
 	if (ieee80211_is_beacon(mgmt->frame_control) &&
 	    le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS &&
-	    memcmp(mgmt->bssid, sc->ah->ah_bssid, ETH_ALEN) == 0) {
+	    memcmp(mgmt->bssid, common->curbssid, ETH_ALEN) == 0) {
 		/*
 		 * Received an IBSS beacon with the same BSSID. Hardware *must*
 		 * have updated the local TSF. We have to work around various
@@ -3177,6 +3178,7 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
 {
 	struct ath5k_softc *sc = hw->priv;
 	struct ath5k_hw *ah = sc->ah;
+	struct ath_common *common = ath5k_hw_common(ah);
 	unsigned long flags;
 
 	mutex_lock(&sc->lock);
@@ -3185,10 +3187,10 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changes & BSS_CHANGED_BSSID) {
 		/* Cache for later use during resets */
-		memcpy(ah->ah_bssid, bss_conf->bssid, ETH_ALEN);
+		memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
 		/* XXX: assoc id is set to 0 for now, mac80211 doesn't have
 		 * a clean way of letting us retrieve this yet. */
-		ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
+		ath5k_hw_set_associd(ah, common->curbssid, 0);
 		mmiowb();
 	}
 
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index 7bbcfe4..f03c06d 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -46,6 +46,7 @@
  */
 int ath5k_hw_set_opmode(struct ath5k_hw *ah)
 {
+	struct ath_common *common = ath5k_hw_common(ah);
 	u32 pcu_reg, beacon_reg, low_id, high_id;
 
 
@@ -97,8 +98,8 @@ int ath5k_hw_set_opmode(struct ath5k_hw *ah)
 	/*
 	 * Set PCU registers
 	 */
-	low_id = get_unaligned_le32(ah->ah_sta_id);
-	high_id = get_unaligned_le16(ah->ah_sta_id + 4);
+	low_id = get_unaligned_le32(common->macaddr);
+	high_id = get_unaligned_le16(common->macaddr + 4);
 	ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
 	ath5k_hw_reg_write(ah, pcu_reg | high_id, AR5K_STA_ID1);
 
@@ -240,28 +241,6 @@ int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout)
 	return 0;
 }
 
-
-/****************\
-* BSSID handling *
-\****************/
-
-/**
- * ath5k_hw_get_lladdr - Get station id
- *
- * @ah: The &struct ath5k_hw
- * @mac: The card's mac address
- *
- * Initialize ah->ah_sta_id using the mac address provided
- * (just a memcpy).
- *
- * TODO: Remove it once we merge ath5k_softc and ath5k_hw
- */
-void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac)
-{
-	ATH5K_TRACE(ah->ah_sc);
-	memcpy(mac, ah->ah_sta_id, ETH_ALEN);
-}
-
 /**
  * ath5k_hw_set_lladdr - Set station id
  *
@@ -272,12 +251,13 @@ void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac)
  */
 int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac)
 {
+	struct ath_common *common = ath5k_hw_common(ah);
 	u32 low_id, high_id;
 	u32 pcu_reg;
 
 	ATH5K_TRACE(ah->ah_sc);
 	/* Set new station ID */
-	memcpy(ah->ah_sta_id, mac, ETH_ALEN);
+	memcpy(common->macaddr, mac, ETH_ALEN);
 
 	pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000;
 
@@ -301,6 +281,7 @@ int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac)
  */
 void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
 {
+	struct ath_common *common = ath5k_hw_common(ah);
 	u32 low_id, high_id;
 	u16 tim_offset = 0;
 
@@ -308,10 +289,10 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
 	 * Set simple BSSID mask on 5212
 	 */
 	if (ah->ah_version == AR5K_AR5212) {
-		ath5k_hw_reg_write(ah, get_unaligned_le32(ah->ah_bssid_mask),
+		ath5k_hw_reg_write(ah, get_unaligned_le32(common->bssidmask),
 							AR5K_BSS_IDM0);
 		ath5k_hw_reg_write(ah,
-				   get_unaligned_le16(ah->ah_bssid_mask + 4),
+				   get_unaligned_le16(common->curbssid + 4),
 				   AR5K_BSS_IDM1);
 	}
 
@@ -433,12 +414,13 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
  */
 int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
 {
+	struct ath_common *common = ath5k_hw_common(ah);
 	u32 low_id, high_id;
 	ATH5K_TRACE(ah->ah_sc);
 
 	/* Cache bssid mask so that we can restore it
 	 * on reset */
-	memcpy(ah->ah_bssid_mask, mask, ETH_ALEN);
+	memcpy(common->bssidmask, mask, ETH_ALEN);
 	if (ah->ah_version == AR5K_AR5212) {
 		low_id = get_unaligned_le32(mask);
 		high_id = get_unaligned_le16(mask + 4);
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 3454dac..51aff76 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -872,6 +872,7 @@ static void ath5k_hw_commit_eeprom_settings(struct ath5k_hw *ah,
 int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
 	struct ieee80211_channel *channel, bool change_channel)
 {
+	struct ath_common *common = ath5k_hw_common(ah);
 	u32 s_seq[10], s_ant, s_led[3], staid1_flags, tsf_up, tsf_lo;
 	u32 phy_tst1;
 	u8 mode, freq, ee_mode, ant[2];
@@ -1173,10 +1174,12 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
 	ath5k_hw_reg_write(ah, s_led[2], AR5K_GPIODO);
 
 	/* Restore sta_id flags and preserve our mac address*/
-	ath5k_hw_reg_write(ah, get_unaligned_le32(ah->ah_sta_id),
-						AR5K_STA_ID0);
-	ath5k_hw_reg_write(ah, staid1_flags | get_unaligned_le16(ah->ah_sta_id),
-						AR5K_STA_ID1);
+	ath5k_hw_reg_write(ah,
+			   get_unaligned_le32(common->macaddr),
+			   AR5K_STA_ID0);
+	ath5k_hw_reg_write(ah,
+			   staid1_flags | get_unaligned_le16(common->macaddr),
+			   AR5K_STA_ID1);
 
 
 	/*
@@ -1185,7 +1188,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
 
 	/* Restore bssid and bssid mask */
 	/* XXX: add ah->aid once mac80211 gives this to us */
-	ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
+	ath5k_hw_set_associd(ah, common->curbssid, 0);
 
 	/* Set PCU config */
 	ath5k_hw_set_opmode(ah);
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 09/10] ath5k: move ath_common to ath5k_hw
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath5k/ath5k.h |    2 ++
 drivers/net/wireless/ath/ath5k/base.c  |   21 +++++++++++++--------
 drivers/net/wireless/ath/ath5k/base.h  |    3 +--
 3 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index f46a92e..fee16fd 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -35,6 +35,7 @@
  * TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities)
  * and clean up common bits, then introduce set/get functions in eeprom.c */
 #include "eeprom.h"
+#include "../ath.h"
 
 /* PCI IDs */
 #define PCI_DEVICE_ID_ATHEROS_AR5210 		0x0007 /* AR5210 */
@@ -1020,6 +1021,7 @@ struct ath5k_capabilities {
 /* TODO: Clean up and merge with ath5k_softc */
 struct ath5k_hw {
 	u32			ah_magic;
+	struct ath_common       common;
 
 	struct ath5k_softc	*ah_sc;
 	void __iomem		*ah_iobase;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index efee68c..06fc893 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -444,6 +444,7 @@ ath5k_pci_probe(struct pci_dev *pdev,
 {
 	void __iomem *mem;
 	struct ath5k_softc *sc;
+	struct ath_common *common;
 	struct ieee80211_hw *hw;
 	int ret;
 	u8 csz;
@@ -547,7 +548,6 @@ ath5k_pci_probe(struct pci_dev *pdev,
 	__set_bit(ATH_STAT_INVALID, sc->status);
 
 	sc->iobase = mem; /* So we can unmap it on detach */
-	sc->common.cachelsz = csz << 2; /* convert to bytes */
 	sc->opmode = NL80211_IFTYPE_STATION;
 	sc->bintval = 1000;
 	mutex_init(&sc->lock);
@@ -572,6 +572,9 @@ ath5k_pci_probe(struct pci_dev *pdev,
 		goto err_irq;
 	}
 
+	common = ath5k_hw_common(sc->ah);
+	common->cachelsz = csz << 2; /* convert to bytes */
+
 	/* set up multi-rate retry capabilities */
 	if (sc->ah->ah_version == AR5K_AR5212) {
 		hw->max_rates = 4;
@@ -718,7 +721,7 @@ static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *re
 {
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct ath5k_softc *sc = hw->priv;
-	struct ath_regulatory *regulatory = &sc->common.regulatory;
+	struct ath_regulatory *regulatory = ath5k_hw_regulatory(sc->ah);
 
 	return ath_reg_notifier_apply(wiphy, request, regulatory);
 }
@@ -728,7 +731,7 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
 {
 	struct ath5k_softc *sc = hw->priv;
 	struct ath5k_hw *ah = sc->ah;
-	struct ath_regulatory *regulatory = &sc->common.regulatory;
+	struct ath_regulatory *regulatory = ath5k_hw_regulatory(ah);
 	u8 mac[ETH_ALEN] = {};
 	int ret;
 
@@ -1153,19 +1156,20 @@ ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix)
 static
 struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
 {
+	struct ath_common *common = ath5k_hw_common(sc->ah);
 	struct sk_buff *skb;
 
 	/*
 	 * Allocate buffer with headroom_needed space for the
 	 * fake physical layer header at the start.
 	 */
-	skb = ath_rxbuf_alloc(&sc->common,
-			      sc->rxbufsize + sc->common.cachelsz - 1,
+	skb = ath_rxbuf_alloc(common,
+			      sc->rxbufsize + common->cachelsz - 1,
 			      GFP_ATOMIC);
 
 	if (!skb) {
 		ATH5K_ERR(sc, "can't alloc skbuff of size %u\n",
-				sc->rxbufsize + sc->common.cachelsz - 1);
+				sc->rxbufsize + common->cachelsz - 1);
 		return NULL;
 	}
 
@@ -1606,13 +1610,14 @@ static int
 ath5k_rx_start(struct ath5k_softc *sc)
 {
 	struct ath5k_hw *ah = sc->ah;
+	struct ath_common *common = ath5k_hw_common(ah);
 	struct ath5k_buf *bf;
 	int ret;
 
-	sc->rxbufsize = roundup(IEEE80211_MAX_LEN, sc->common.cachelsz);
+	sc->rxbufsize = roundup(IEEE80211_MAX_LEN, common->cachelsz);
 
 	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rxbufsize %u\n",
-		sc->common.cachelsz, sc->rxbufsize);
+		common->cachelsz, sc->rxbufsize);
 
 	spin_lock_bh(&sc->rxbuflock);
 	sc->rxlink = NULL;
diff --git a/drivers/net/wireless/ath/ath5k/base.h b/drivers/net/wireless/ath/ath5k/base.h
index a28c42f..005d25f 100644
--- a/drivers/net/wireless/ath/ath5k/base.h
+++ b/drivers/net/wireless/ath/ath5k/base.h
@@ -115,7 +115,6 @@ struct ath5k_rfkill {
  * associated with an instance of a device */
 struct ath5k_softc {
 	struct pci_dev		*pdev;		/* for dma mapping */
-	struct ath_common	common;
 	void __iomem		*iobase;	/* address of the device */
 	struct mutex		lock;		/* dev-level lock */
 	struct ieee80211_tx_queue_stats tx_stats[AR5K_NUM_TX_QUEUES];
@@ -204,7 +203,7 @@ struct ath5k_softc {
 
 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
 {
-	return &ah->ah_sc->common;
+	return &ah->common;
 }
 
 static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 02/10] ath9k: Use ath9k_hw_setbssidmask() on reset
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

The same code was being implemented on reset for setting the bssidmask,
instead just use the already provided helper.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath9k/hw.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index f7aaaa1..957ecb8 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2454,8 +2454,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		  | ah->sta_id1_defaults);
 	ath9k_hw_set_operating_mode(ah, ah->opmode);
 
-	REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(sc->bssidmask));
-	REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(sc->bssidmask + 4));
+	ath9k_hw_setbssidmask(ah);
 
 	REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
 
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 00/10] atheros: expand common helpers
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez

This is my third series of cleanups on atheros devices to help
with support for ath9k_htc. ath9k hw.c was relying on the driver
core structure ath_softc to access the bssidmask, macaddr, and
curbssid. To prevent this I moved these into the common structure
ath_common and also ported ath5k and ar9170 to use the same shared
data.

The rest are a few other cleanups I did along the way, like moving
ath_common to the hw structure for ath9k and ath5k and also one
final bt-coex fix/cleanup.

I've tested these changes on ath5k, ath9k and ar9170.

Luis R. Rodriguez (10):
  ath9k: make ath9k_hw_setbssidmask() and ath9k_hw_write_associd() use
    ath_hw
  ath9k: Use ath9k_hw_setbssidmask() on reset
  ath9k: use ath9k_hw_write_associd() on reset
  atheros/ath9k: move macaddr, curaid, curbssid and bssidmask to common
  ar9170: make use of common macaddr and curbssid
  ath5k: use common curbssid, bssidmask and macaddr
  ath5k: initialize eeprom struct early on attach
  ath9k: move ath_common to ath_hw
  ath5k: move ath_common to ath5k_hw
  ath9k: Define bus agnostic bluetooth coex prep helper

 drivers/net/wireless/ath/ar9170/ar9170.h |    2 -
 drivers/net/wireless/ath/ar9170/mac.c    |    5 +-
 drivers/net/wireless/ath/ar9170/main.c   |    6 ++-
 drivers/net/wireless/ath/ath.h           |    4 ++
 drivers/net/wireless/ath/ath5k/ath5k.h   |   11 +----
 drivers/net/wireless/ath/ath5k/attach.c  |   12 +++--
 drivers/net/wireless/ath/ath5k/base.c    |   29 ++++++++-----
 drivers/net/wireless/ath/ath5k/base.h    |    3 +-
 drivers/net/wireless/ath/ath5k/pcu.c     |   38 +++++-------------
 drivers/net/wireless/ath/ath5k/reset.c   |   13 ++++--
 drivers/net/wireless/ath/ath9k/ath9k.h   |    8 +---
 drivers/net/wireless/ath/ath9k/hw.c      |   51 +++++++++--------------
 drivers/net/wireless/ath/ath9k/hw.h      |    7 +--
 drivers/net/wireless/ath/ath9k/main.c    |   65 +++++++++++++++++-------------
 drivers/net/wireless/ath/ath9k/pci.c     |   17 ++++++++
 drivers/net/wireless/ath/ath9k/recv.c    |   19 +++++---
 drivers/net/wireless/ath/ath9k/virtual.c |   22 +++++-----
 17 files changed, 160 insertions(+), 152 deletions(-)


^ permalink raw reply

* [PATCH 01/10] ath9k: make ath9k_hw_setbssidmask() and ath9k_hw_write_associd() use ath_hw
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath9k/hw.c      |   14 +++++++-------
 drivers/net/wireless/ath/ath9k/hw.h      |    4 ++--
 drivers/net/wireless/ath/ath9k/main.c    |   11 ++++++-----
 drivers/net/wireless/ath/ath9k/recv.c    |    2 +-
 drivers/net/wireless/ath/ath9k/virtual.c |    2 +-
 5 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index eeaf77a..f7aaaa1 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3984,17 +3984,17 @@ void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
 	REG_WRITE(ah, AR_MCAST_FIL1, filter1);
 }
 
-void ath9k_hw_setbssidmask(struct ath_softc *sc)
+void ath9k_hw_setbssidmask(struct ath_hw *ah)
 {
-	REG_WRITE(sc->sc_ah, AR_BSSMSKL, get_unaligned_le32(sc->bssidmask));
-	REG_WRITE(sc->sc_ah, AR_BSSMSKU, get_unaligned_le16(sc->bssidmask + 4));
+	REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(ah->ah_sc->bssidmask));
+	REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(ah->ah_sc->bssidmask + 4));
 }
 
-void ath9k_hw_write_associd(struct ath_softc *sc)
+void ath9k_hw_write_associd(struct ath_hw *ah)
 {
-	REG_WRITE(sc->sc_ah, AR_BSS_ID0, get_unaligned_le32(sc->curbssid));
-	REG_WRITE(sc->sc_ah, AR_BSS_ID1, get_unaligned_le16(sc->curbssid + 4) |
-		  ((sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
+	REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(ah->ah_sc->curbssid));
+	REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(ah->ah_sc->curbssid + 4) |
+		  ((ah->ah_sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
 }
 
 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 421d2ba..d7b2a35 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -641,8 +641,8 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac);
 void ath9k_hw_setopmode(struct ath_hw *ah);
 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1);
-void ath9k_hw_setbssidmask(struct ath_softc *sc);
-void ath9k_hw_write_associd(struct ath_softc *sc);
+void ath9k_hw_setbssidmask(struct ath_hw *ah);
+void ath9k_hw_write_associd(struct ath_hw *ah);
 u64 ath9k_hw_gettsf64(struct ath_hw *ah);
 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64);
 void ath9k_hw_reset_tsf(struct ath_hw *ah);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 94ef651..0eeb514 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -975,14 +975,15 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *bss_conf)
 {
+	struct ath_hw *ah = sc->sc_ah;
 
 	if (bss_conf->assoc) {
-		DPRINTF(sc->sc_ah, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
+		DPRINTF(ah, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
 			bss_conf->aid, sc->curbssid);
 
 		/* New association, store aid */
 		sc->curaid = bss_conf->aid;
-		ath9k_hw_write_associd(sc);
+		ath9k_hw_write_associd(ah);
 
 		/*
 		 * Request a re-configuration of Beacon related timers
@@ -999,7 +1000,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 
 		ath_start_ani(sc);
 	} else {
-		DPRINTF(sc->sc_ah, ATH_DBG_CONFIG, "Bss Info DISASSOC\n");
+		DPRINTF(ah, ATH_DBG_CONFIG, "Bss Info DISASSOC\n");
 		sc->curaid = 0;
 		/* Stop ANI */
 		del_timer_sync(&sc->ani.timer);
@@ -2807,7 +2808,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 		ath9k_hw_setopmode(ah);
 		memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN);
 		sc->curaid = 0;
-		ath9k_hw_write_associd(sc);
+		ath9k_hw_write_associd(ah);
 		/* Request full reset to get hw opmode changed properly */
 		sc->sc_flags |= SC_OP_FULL_RESET;
 	}
@@ -2822,7 +2823,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 			memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN);
 			memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN);
 			sc->curaid = 0;
-			ath9k_hw_write_associd(sc);
+			ath9k_hw_write_associd(ah);
 
 			/* Set aggregation protection mode parameters */
 			sc->config.ath_aggr_prot = 0;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index ee1e8b4..529cab6 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -280,7 +280,7 @@ static void ath_opmode_init(struct ath_softc *sc)
 
 	/* configure bssid mask */
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
-		ath9k_hw_setbssidmask(sc);
+		ath9k_hw_setbssidmask(ah);
 
 	/* configure operational mode */
 	ath9k_hw_setopmode(ah);
diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c
index 19b88f8..52becd3 100644
--- a/drivers/net/wireless/ath/ath9k/virtual.c
+++ b/drivers/net/wireless/ath/ath9k/virtual.c
@@ -93,7 +93,7 @@ void ath9k_set_bssid_mask(struct ieee80211_hw *hw)
 	sc->bssidmask[4] = ~mask[4];
 	sc->bssidmask[5] = ~mask[5];
 
-	ath9k_hw_setbssidmask(sc);
+	ath9k_hw_setbssidmask(sc->sc_ah);
 }
 
 int ath9k_wiphy_add(struct ath_softc *sc)
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 03/10] ath9k: use ath9k_hw_write_associd() on reset
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

Use the already provided helper instead of rewriting the code
required in place.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath9k/hw.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 957ecb8..e370c8f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2458,9 +2458,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
 
-	REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(sc->curbssid));
-	REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(sc->curbssid + 4) |
-		  ((sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
+	ath9k_hw_write_associd(ah);
 
 	REG_WRITE(ah, AR_ISR, ~0);
 
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 08/10] ath9k: move ath_common to ath_hw
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

This ensures that we can access common on hw related code
independent of the driver core.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h |    4 +---
 drivers/net/wireless/ath/ath9k/hw.h    |    1 +
 drivers/net/wireless/ath/ath9k/main.c  |   22 +++++++++++-----------
 drivers/net/wireless/ath/ath9k/recv.c  |   10 ++++++----
 4 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 757f17f..0c64c80 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -553,8 +553,6 @@ struct ath_softc {
 	struct ieee80211_hw *hw;
 	struct device *dev;
 
-	struct ath_common common;
-
 	spinlock_t wiphy_lock; /* spinlock to protect ath_wiphy data */
 	struct ath_wiphy *pri_wiphy;
 	struct ath_wiphy **sec_wiphy; /* secondary wiphys (virtual radios); may
@@ -649,7 +647,7 @@ int ath_cabq_update(struct ath_softc *);
 
 static inline struct ath_common *ath9k_hw_common(struct ath_hw *ah)
 {
-	return &ah->ah_sc->common;
+	return &ah->common;
 }
 
 static inline struct ath_regulatory *ath9k_hw_regulatory(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index f8e7919..4f58908 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -435,6 +435,7 @@ struct ath_gen_timer_table {
 
 struct ath_hw {
 	struct ath_softc *ah_sc;
+	struct ath_common common;
 	struct ath9k_hw_version hw_version;
 	struct ath9k_ops_config config;
 	struct ath9k_hw_capabilities caps;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 838b704..2423cdc 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1352,7 +1352,7 @@ static int ath9k_reg_notifier(struct wiphy *wiphy,
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct ath_wiphy *aphy = hw->priv;
 	struct ath_softc *sc = aphy->sc;
-	struct ath_regulatory *reg = &sc->common.regulatory;
+	struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah);
 
 	return ath_reg_notifier_apply(wiphy, request, reg);
 }
@@ -1520,14 +1520,6 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 	tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
 		     (unsigned long)sc);
 
-	/*
-	 * Cache line size is used to size and align various
-	 * structures used to communicate with the hardware.
-	 */
-	ath_read_cachesize(sc, &csz);
-	/* XXX assert csz is non-zero */
-	sc->common.cachelsz = csz << 2;	/* convert to bytes */
-
 	ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 	if (!ah) {
 		r = -ENOMEM;
@@ -1539,6 +1531,16 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 	ah->hw_version.subsysid = subsysid;
 	sc->sc_ah = ah;
 
+	common = ath9k_hw_common(ah);
+
+	/*
+	 * Cache line size is used to size and align various
+	 * structures used to communicate with the hardware.
+	 */
+	ath_read_cachesize(sc, &csz);
+	/* XXX assert csz is non-zero */
+	common->cachelsz = csz << 2;	/* convert to bytes */
+
 	if (ath9k_init_debug(ah) < 0)
 		dev_err(sc->dev, "Unable to create debugfs files\n");
 
@@ -1681,8 +1683,6 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 	ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
 	sc->rx.defant = ath9k_hw_getdefantenna(ah);
 
-	common = ath9k_hw_common(ah);
-
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
 		memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 3bdd4e6..97a5efe 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -297,6 +297,7 @@ static void ath_opmode_init(struct ath_softc *sc)
 
 int ath_rx_init(struct ath_softc *sc, int nbufs)
 {
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct sk_buff *skb;
 	struct ath_buf *bf;
 	int error = 0;
@@ -306,10 +307,10 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 	spin_lock_init(&sc->rx.rxbuflock);
 
 	sc->rx.bufsize = roundup(IEEE80211_MAX_MPDU_LEN,
-				 min(sc->common.cachelsz, (u16)64));
+				 min(common->cachelsz, (u16)64));
 
 	DPRINTF(sc->sc_ah, ATH_DBG_CONFIG, "cachelsz %u rxbufsize %u\n",
-		sc->common.cachelsz, sc->rx.bufsize);
+		common->cachelsz, sc->rx.bufsize);
 
 	/* Initialize rx descriptors */
 
@@ -322,7 +323,7 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 	}
 
 	list_for_each_entry(bf, &sc->rx.rxbuf, list) {
-		skb = ath_rxbuf_alloc(&sc->common, sc->rx.bufsize, GFP_KERNEL);
+		skb = ath_rxbuf_alloc(common, sc->rx.bufsize, GFP_KERNEL);
 		if (skb == NULL) {
 			error = -ENOMEM;
 			goto err;
@@ -654,6 +655,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
 	struct sk_buff *skb = NULL, *requeue_skb;
 	struct ieee80211_rx_status rx_status;
 	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_hdr *hdr;
 	int hdrlen, padsize, retval;
 	bool decrypt_error = false;
@@ -752,7 +754,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
 
 		/* Ensure we always have an skb to requeue once we are done
 		 * processing the current buffer's skb */
-		requeue_skb = ath_rxbuf_alloc(&sc->common, sc->rx.bufsize, GFP_ATOMIC);
+		requeue_skb = ath_rxbuf_alloc(common, sc->rx.bufsize, GFP_ATOMIC);
 
 		/* If there is no memory we ignore the current RX'd frame,
 		 * tell hardware it can give us a new frame using the old
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 05/10] ar9170: make use of common macaddr and curbssid
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

These are provided by ath_common.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ar9170/ar9170.h |    2 --
 drivers/net/wireless/ath/ar9170/mac.c    |    5 +++--
 drivers/net/wireless/ath/ar9170/main.c   |    6 ++++--
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h
index 914e471..c5576ee 100644
--- a/drivers/net/wireless/ath/ar9170/ar9170.h
+++ b/drivers/net/wireless/ath/ar9170/ar9170.h
@@ -172,8 +172,6 @@ struct ar9170 {
 
 	/* interface mode settings */
 	struct ieee80211_vif *vif;
-	u8 mac_addr[ETH_ALEN];
-	u8 bssid[ETH_ALEN];
 
 	/* beaconing */
 	struct sk_buff *beacon;
diff --git a/drivers/net/wireless/ath/ar9170/mac.c b/drivers/net/wireless/ath/ar9170/mac.c
index 0c6273a..ddc8c09 100644
--- a/drivers/net/wireless/ath/ar9170/mac.c
+++ b/drivers/net/wireless/ath/ar9170/mac.c
@@ -311,13 +311,14 @@ static int ar9170_set_promiscouous(struct ar9170 *ar)
 
 int ar9170_set_operating_mode(struct ar9170 *ar)
 {
+	struct ath_common *common = &ar->common;
 	u32 pm_mode = AR9170_MAC_REG_POWERMGT_DEFAULTS;
 	u8 *mac_addr, *bssid;
 	int err;
 
 	if (ar->vif) {
-		mac_addr = ar->mac_addr;
-		bssid = ar->bssid;
+		mac_addr = common->macaddr;
+		bssid = common->curbssid;
 
 		switch (ar->vif->type) {
 		case NL80211_IFTYPE_MESH_POINT:
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index c1f8c69..81c6cf1 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -1952,6 +1952,7 @@ static int ar9170_op_add_interface(struct ieee80211_hw *hw,
 				   struct ieee80211_if_init_conf *conf)
 {
 	struct ar9170 *ar = hw->priv;
+	struct ath_common *common = &ar->common;
 	int err = 0;
 
 	mutex_lock(&ar->mutex);
@@ -1962,7 +1963,7 @@ static int ar9170_op_add_interface(struct ieee80211_hw *hw,
 	}
 
 	ar->vif = conf->vif;
-	memcpy(ar->mac_addr, conf->mac_addr, ETH_ALEN);
+	memcpy(common->macaddr, conf->mac_addr, ETH_ALEN);
 
 	if (modparam_nohwcrypt || (ar->vif->type != NL80211_IFTYPE_STATION)) {
 		ar->rx_software_decryption = true;
@@ -2131,12 +2132,13 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
 				       u32 changed)
 {
 	struct ar9170 *ar = hw->priv;
+	struct ath_common *common = &ar->common;
 	int err = 0;
 
 	mutex_lock(&ar->mutex);
 
 	if (changed & BSS_CHANGED_BSSID) {
-		memcpy(ar->bssid, bss_conf->bssid, ETH_ALEN);
+		memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
 		err = ar9170_set_operating_mode(ar);
 		if (err)
 			goto out;
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 04/10] atheros/ath9k: move macaddr, curaid, curbssid and bssidmask to common
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

These are common amongst ath9k and ath5k, so put them into the
common structure and make ath9k to use it. ar9170 can use macaddr,
and curbssid. We'll change ath5k and ar9170 separately.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath.h           |    4 +++
 drivers/net/wireless/ath/ath9k/ath9k.h   |    3 --
 drivers/net/wireless/ath/ath9k/hw.c      |   26 ++++++++++++++---------
 drivers/net/wireless/ath/ath9k/hw.h      |    1 -
 drivers/net/wireless/ath/ath9k/main.c    |   33 ++++++++++++++++++-----------
 drivers/net/wireless/ath/ath9k/recv.c    |    7 ++++-
 drivers/net/wireless/ath/ath9k/virtual.c |   18 +++++++++-------
 7 files changed, 55 insertions(+), 37 deletions(-)

diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 44f885a..7589b2a 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -41,6 +41,10 @@ struct ath_regulatory {
 
 struct ath_common {
 	u16 cachelsz;
+	u16 curaid;
+	u8 macaddr[ETH_ALEN];
+	u8 curbssid[ETH_ALEN];
+	u8 bssidmask[ETH_ALEN];
 	struct ath_regulatory regulatory;
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index e54fac3..757f17f 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -581,12 +581,9 @@ struct ath_softc {
 	spinlock_t sc_pm_lock;
 	struct mutex mutex;
 
-	u8 curbssid[ETH_ALEN];
-	u8 bssidmask[ETH_ALEN];
 	u32 intrstatus;
 	u32 sc_flags; /* SC_OP_* */
 	u16 curtxpow;
-	u16 curaid;
 	u8 nbcnvifs;
 	u16 nvifs;
 	u8 tx_chainmask;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index e370c8f..234decc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -511,6 +511,7 @@ static int ath9k_hw_rf_claim(struct ath_hw *ah)
 
 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 {
+	struct ath_common *common = ath9k_hw_common(ah);
 	u32 sum;
 	int i;
 	u16 eeval;
@@ -519,8 +520,8 @@ static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 	for (i = 0; i < 3; i++) {
 		eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
 		sum += eeval;
-		ah->macaddr[2 * i] = eeval >> 8;
-		ah->macaddr[2 * i + 1] = eeval & 0xff;
+		common->macaddr[2 * i] = eeval >> 8;
+		common->macaddr[2 * i + 1] = eeval & 0xff;
 	}
 	if (sum == 0 || sum == 0xffff * 3)
 		return -EADDRNOTAVAIL;
@@ -2334,6 +2335,7 @@ static void ath9k_enable_rfkill(struct ath_hw *ah)
 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		    bool bChannelChange)
 {
+	struct ath_common *common = ath9k_hw_common(ah);
 	u32 saveLedState;
 	struct ath_softc *sc = ah->ah_sc;
 	struct ath9k_channel *curchan = ah->curchan;
@@ -2445,8 +2447,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ath9k_hw_decrease_chain_power(ah, chan);
 
-	REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(ah->macaddr));
-	REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(ah->macaddr + 4)
+	REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
+	REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
 		  | macStaId1
 		  | AR_STA_ID1_RTS_USE_DEF
 		  | (ah->config.
@@ -3967,7 +3969,7 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
 
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
 {
-	memcpy(ah->macaddr, mac, ETH_ALEN);
+	memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
 }
 
 void ath9k_hw_setopmode(struct ath_hw *ah)
@@ -3983,15 +3985,19 @@ void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
 
 void ath9k_hw_setbssidmask(struct ath_hw *ah)
 {
-	REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(ah->ah_sc->bssidmask));
-	REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(ah->ah_sc->bssidmask + 4));
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(common->bssidmask));
+	REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(common->bssidmask + 4));
 }
 
 void ath9k_hw_write_associd(struct ath_hw *ah)
 {
-	REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(ah->ah_sc->curbssid));
-	REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(ah->ah_sc->curbssid + 4) |
-		  ((ah->ah_sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
+	REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
+		  ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
 }
 
 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index d7b2a35..f8e7919 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -451,7 +451,6 @@ struct ath_hw {
 
 	bool sw_mgmt_crypto;
 	bool is_pciexpress;
-	u8 macaddr[ETH_ALEN];
 	u16 tx_trig_level;
 	u16 rfsilent;
 	u32 rfkill_gpio;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 0eeb514..838b704 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -976,13 +976,14 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 				 struct ieee80211_bss_conf *bss_conf)
 {
 	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
 
 	if (bss_conf->assoc) {
 		DPRINTF(ah, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
-			bss_conf->aid, sc->curbssid);
+			bss_conf->aid, common->curbssid);
 
 		/* New association, store aid */
-		sc->curaid = bss_conf->aid;
+		common->curaid = bss_conf->aid;
 		ath9k_hw_write_associd(ah);
 
 		/*
@@ -1001,7 +1002,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 		ath_start_ani(sc);
 	} else {
 		DPRINTF(ah, ATH_DBG_CONFIG, "Bss Info DISASSOC\n");
-		sc->curaid = 0;
+		common->curaid = 0;
 		/* Stop ANI */
 		del_timer_sync(&sc->ani.timer);
 	}
@@ -1501,6 +1502,7 @@ static int ath_init_btcoex_timer(struct ath_softc *sc)
 static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 {
 	struct ath_hw *ah = NULL;
+	struct ath_common *common;
 	int r = 0, i;
 	int csz = 0;
 	int qnum;
@@ -1679,8 +1681,10 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 	ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
 	sc->rx.defant = ath9k_hw_getdefantenna(ah);
 
+	common = ath9k_hw_common(ah);
+
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
-		memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN);
+		memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 
 	sc->beacon.slottime = ATH9K_SLOT_TIME_9;	/* default to short slot time */
 
@@ -1784,6 +1788,7 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid)
 {
 	struct ieee80211_hw *hw = sc->hw;
+	struct ath_common *common;
 	struct ath_hw *ah;
 	int error = 0, i;
 	struct ath_regulatory *reg;
@@ -1795,19 +1800,20 @@ int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid)
 		return error;
 
 	ah = sc->sc_ah;
+	common = ath9k_hw_common(ah);
 
 	/* get mac address from hardware and set in mac80211 */
 
-	SET_IEEE80211_PERM_ADDR(hw, ah->macaddr);
+	SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 
 	ath_set_hw_capab(sc, hw);
 
-	error = ath_regd_init(&sc->common.regulatory, sc->hw->wiphy,
+	error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
 			      ath9k_reg_notifier);
 	if (error)
 		return error;
 
-	reg = &sc->common.regulatory;
+	reg = &common->regulatory;
 
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 		setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
@@ -2791,6 +2797,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 	struct ath_wiphy *aphy = hw->priv;
 	struct ath_softc *sc = aphy->sc;
 	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_vif *avp = (void *)vif->drv_priv;
 	u32 rfilt = 0;
 	int error, i;
@@ -2806,8 +2813,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 	    ah->opmode != NL80211_IFTYPE_AP) {
 		ah->opmode = NL80211_IFTYPE_STATION;
 		ath9k_hw_setopmode(ah);
-		memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN);
-		sc->curaid = 0;
+		memcpy(common->curbssid, common->macaddr, ETH_ALEN);
+		common->curaid = 0;
 		ath9k_hw_write_associd(ah);
 		/* Request full reset to get hw opmode changed properly */
 		sc->sc_flags |= SC_OP_FULL_RESET;
@@ -2820,9 +2827,9 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 		case NL80211_IFTYPE_ADHOC:
 		case NL80211_IFTYPE_MESH_POINT:
 			/* Set BSSID */
-			memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN);
+			memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
 			memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN);
-			sc->curaid = 0;
+			common->curaid = 0;
 			ath9k_hw_write_associd(ah);
 
 			/* Set aggregation protection mode parameters */
@@ -2830,7 +2837,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 
 			DPRINTF(sc->sc_ah, ATH_DBG_CONFIG,
 				"RX filter 0x%x bssid %pM aid 0x%x\n",
-				rfilt, sc->curbssid, sc->curaid);
+				rfilt, common->curbssid, common->curaid);
 
 			/* need to reconfigure the beacon */
 			sc->sc_flags &= ~SC_OP_BEACONS ;
@@ -2869,7 +2876,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 			if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i))
 				ath9k_hw_keysetmac(sc->sc_ah,
 						   (u16)i,
-						   sc->curbssid);
+						   common->curbssid);
 	}
 
 	/* Only legacy IBSS for now */
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 529cab6..3bdd4e6 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -272,6 +272,8 @@ rx_next:
 static void ath_opmode_init(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+
 	u32 rfilt, mfilt[2];
 
 	/* configure rx filter */
@@ -286,7 +288,7 @@ static void ath_opmode_init(struct ath_softc *sc)
 	ath9k_hw_setopmode(ah);
 
 	/* Handle any link-level address change. */
-	ath9k_hw_setmac(ah, sc->sc_ah->macaddr);
+	ath9k_hw_setmac(ah, common->macaddr);
 
 	/* calculate and install multicast filter */
 	mfilt[0] = mfilt[1] = ~0;
@@ -527,12 +529,13 @@ static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb)
 static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)
 {
 	struct ieee80211_mgmt *mgmt;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 
 	if (skb->len < 24 + 8 + 2 + 2)
 		return;
 
 	mgmt = (struct ieee80211_mgmt *)skb->data;
-	if (memcmp(sc->curbssid, mgmt->bssid, ETH_ALEN) != 0)
+	if (memcmp(common->curbssid, mgmt->bssid, ETH_ALEN) != 0)
 		return; /* not from our current AP */
 
 	sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON;
diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c
index 52becd3..7b763b6 100644
--- a/drivers/net/wireless/ath/ath9k/virtual.c
+++ b/drivers/net/wireless/ath/ath9k/virtual.c
@@ -40,6 +40,7 @@ void ath9k_set_bssid_mask(struct ieee80211_hw *hw)
 {
 	struct ath_wiphy *aphy = hw->priv;
 	struct ath_softc *sc = aphy->sc;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath9k_vif_iter_data iter_data;
 	int i, j;
 	u8 mask[ETH_ALEN];
@@ -51,7 +52,7 @@ void ath9k_set_bssid_mask(struct ieee80211_hw *hw)
 	 */
 	iter_data.addr = kmalloc(ETH_ALEN, GFP_ATOMIC);
 	if (iter_data.addr) {
-		memcpy(iter_data.addr, sc->sc_ah->macaddr, ETH_ALEN);
+		memcpy(iter_data.addr, common->macaddr, ETH_ALEN);
 		iter_data.count = 1;
 	} else
 		iter_data.count = 0;
@@ -86,12 +87,12 @@ void ath9k_set_bssid_mask(struct ieee80211_hw *hw)
 	kfree(iter_data.addr);
 
 	/* Invert the mask and configure hardware */
-	sc->bssidmask[0] = ~mask[0];
-	sc->bssidmask[1] = ~mask[1];
-	sc->bssidmask[2] = ~mask[2];
-	sc->bssidmask[3] = ~mask[3];
-	sc->bssidmask[4] = ~mask[4];
-	sc->bssidmask[5] = ~mask[5];
+	common->bssidmask[0] = ~mask[0];
+	common->bssidmask[1] = ~mask[1];
+	common->bssidmask[2] = ~mask[2];
+	common->bssidmask[3] = ~mask[3];
+	common->bssidmask[4] = ~mask[4];
+	common->bssidmask[5] = ~mask[5];
 
 	ath9k_hw_setbssidmask(sc->sc_ah);
 }
@@ -100,6 +101,7 @@ int ath9k_wiphy_add(struct ath_softc *sc)
 {
 	int i, error;
 	struct ath_wiphy *aphy;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ieee80211_hw *hw;
 	u8 addr[ETH_ALEN];
 
@@ -138,7 +140,7 @@ int ath9k_wiphy_add(struct ath_softc *sc)
 	sc->sec_wiphy[i] = aphy;
 	spin_unlock_bh(&sc->wiphy_lock);
 
-	memcpy(addr, sc->sc_ah->macaddr, ETH_ALEN);
+	memcpy(addr, common->macaddr, ETH_ALEN);
 	addr[0] |= 0x02; /* Locally managed address */
 	/*
 	 * XOR virtual wiphy index into the least significant bits to generate
-- 
1.6.3.3


^ permalink raw reply related

* [PATCH 07/10] ath5k: initialize eeprom struct early on attach
From: Luis R. Rodriguez @ 2009-09-10 19:30 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless, ath9k-devel, devel, Luis R. Rodriguez
In-Reply-To: <1252611027-5285-1-git-send-email-lrodriguez@atheros.com>

This fixes this sparse warning:

  CHECK   drivers/net/wireless/ath/ath5k/attach.c
drivers/net/wireless/ath/ath5k/attach.c:288:42: warning: symbol 'ee' shadows an earlier one
drivers/net/wireless/ath/ath5k/attach.c:109:34: originally declared here

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
---
 drivers/net/wireless/ath/ath5k/attach.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index 2d262c7..123612a 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -281,12 +281,12 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
 		goto err_free;
 	}
 
+	ee = &ah->ah_capabilities.cap_eeprom;
+
 	/*
 	 * Write PCI-E power save settings
 	 */
 	if ((ah->ah_version == AR5K_AR5212) && (pdev->is_pcie)) {
-		struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
-
 		ath5k_hw_reg_write(ah, 0x9248fc00, AR5K_PCIE_SERDES);
 		ath5k_hw_reg_write(ah, 0x24924924, AR5K_PCIE_SERDES);
 
@@ -324,7 +324,6 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc)
 	}
 
 	/* Crypto settings */
-	ee = &ah->ah_capabilities.cap_eeprom;
 	ah->ah_aes_support = srev >= AR5K_SREV_AR5212_V4 &&
 		(ee->ee_version >= AR5K_EEPROM_VERSION_5_0 &&
 		 !AR5K_EEPROM_AES_DIS(ee->ee_misc5));
-- 
1.6.3.3


^ permalink raw reply related

* Re: [PATCH] wl1251: halt the embedded CPU before loading firmware
From: Kalle Valo @ 2009-09-10 19:25 UTC (permalink / raw)
  To: Bob Copeland; +Cc: linux-wireless
In-Reply-To: <20090818033356.GB524@hash.localnet>

Bob Copeland <me@bobcopeland.com> writes:

> After initial power-up, the embedded cpu is usually halted.  However,
> if we down the interface and only do a soft reset before bringing
> the interface back up, it will still be running and the firmware
> loading code will bail out.  This change halts the CPU before loading
> the firmware, enabling a second call to wl1251_boot() to succeed
> without a hard reset.
>
> Signed-off-by: Bob Copeland <me@bobcopeland.com>

Acked-by: Kalle Valo <kalle.valo@nokia.com>

(Even though  the patch is already in wireless-testing.)

> Hi Kalle,

Hi Bob,

sorry for the long delay. Last few weeks has been crazy :)

> Thoughts on this?  It fixes my remaining issue with warm card reset.
> I think Android code does this in the firmware loader:

I'm fine with this. I tested the patch with spi and it works fine.

Thanks again.

-- 
Kalle Valo

^ permalink raw reply

* Re: AP: ath5k + hostapd occasionally sulks
From: Philip A. Prindeville @ 2009-09-10 18:55 UTC (permalink / raw)
  To: Bob Copeland; +Cc: jon.fairbairn, linux-wireless
In-Reply-To: <4AA7DB6C.9060207@redfish-solutions.com>

Philip Prindeville wrote:
> Bob Copeland wrote:
>   
>> On Tue, Sep 8, 2009 at 1:53 PM, Philip Prindeville
>> <philipp_subx@redfish-solutions.com> wrote:
>>   
>>     
>>> I pulled compat-wireless from GIT last night (or about 1:30am mountain,
>>> really) and rebuilt a 2.6.27.29 kernel.
>>>
>>> I'm seeing a lot of:
>>>
>>> Sep  8 11:44:09 pbx user.err kernel: ath5k phy0: no further txbuf available, dropping packet
>>>
>>>
>>> one every 10 seconds, in fact.  This is with an Engenius EMP-8062+ card:
>>>     
>>>       
>> Ok, the timing information is useful.  This is probably something (beacon
>> sending?) racing with the periodic calibration, which temporarily stops
>> all of the tx traffic and frees the tx buffers, then starts it all up
>> again.  In short, apart from the logging this shouldn't cause any
>> problems, but we should probably disable the beacon tasklet during this
>> time.
>>   
>>     
>
> Alas it is causing problems.  I have a Windows 7 client with an Atheros
> card (I forget which... it's the mini-PCIe card that comes with Zotac
> ION mini-itx motherboards).
>
> I either can't associate, or associate but don't get a DHCP address or
> don't pass traffic... I forget which.
>
> I can do more testing tomorrow...
>   
>> If this only appeared all of a sudden in recent compat snapshots, it
>> would be useful to know the last one that worked normally.
>>   
>>     
>
> I could walk it backwards, I suppose...  2009-08-23 was definitely
> working with an 9K board.
>
> I've not tried it with a 5K board (I'm not at this location very often).
>   

FYI:  The Windows 7 box associates and runs just fine with 9K driver
with 2009-09-07.  So it seems to be an issue with the 5K driver.

I'll set up a second WAP with a 5K card...

-Philip

>
>   
>>> I'll probably have to reboot regularly, since this is on an embedded box
>>> with limited CF filesystem, and I can't overflow my /var partition...
>>>     
>>>       
>> Ouch.  For now, just take it out or demote it to debug.
>>
>> As for the original problem, I don't know offhand why a large download
>> would trigger a cascade of these errors.  The best way to track it down
>> is to try to come up with a case that reproduces it and sprinkle printks
>> throughout the driver, especially when we free and allocate the tx
>> buffers.
>>
>>   
>>     


^ permalink raw reply

* Re: iwlagn: order 2 page allocation failures
From: reinette chatre @ 2009-09-10 18:50 UTC (permalink / raw)
  To: Frans Pop
  Cc: Mel Gorman, Larry Finger, John W. Linville, Pekka Enberg,
	linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
	ipw3945-devel@lists.sourceforge.net, Andrew Morton,
	cl@linux-foundation.org, Krauss, Assaf, Johannes Berg,
	Abbas, Mohamed
In-Reply-To: <200909102043.17883.elendil@planet.nl>

On Thu, 2009-09-10 at 11:43 -0700, Frans Pop wrote:

> Looks good to me (from a user's perspective).

Thank you very much for looking at it.

> IIUC the first message is now only displayed if IWL debugging is 
> explicitly enabled, 

Correct. User will have to enable debug flag of 0x1.

> It seems to me that, with debugging enabled, the "Failed to allocate SKB 
> buffer." message may get repeated, but I guess that's minor.

Yes, it will be repeated. I did add a "net_ratelimit()" to it so it
should not be too overwhelming. I did not care to limit it even more
since we are now talking about a debug message as opposed to an error
message on the console.


> One nitpick. As you've made the message into sentences, "Only %u free 
> buffers remaining" should IMO also end with a period.

Sorry - will fix. I will not post a new version to this thread for this
issue, but it will be fixed in the next version I send out.

Reinette



^ permalink raw reply

* Re: iwlagn: order 2 page allocation failures
From: Frans Pop @ 2009-09-10 18:43 UTC (permalink / raw)
  To: reinette chatre
  Cc: Mel Gorman, Larry Finger, John W. Linville, Pekka Enberg,
	linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
	ipw3945-devel@lists.sourceforge.net, Andrew Morton,
	cl@linux-foundation.org, Krauss, Assaf, Johannes Berg,
	Abbas, Mohamed
In-Reply-To: <1252606547.30150.304.camel@rc-desk>

On Thursday 10 September 2009, reinette chatre wrote:
> From: Reinette Chatre <reinette.chatre@intel.com>
> Date: Wed, 9 Sep 2009 15:41:00 -0700
> Subject: [PATCH] iwlwifi: reduce noise when skb allocation fails

Looks good to me (from a user's perspective).
IIUC the first message is now only displayed if IWL debugging is 
explicitly enabled, and the second only if there really is danger of it 
affecting data transfer and has been made more informative too.

It seems to me that, with debugging enabled, the "Failed to allocate SKB 
buffer." message may get repeated, but I guess that's minor.

One nitpick. As you've made the message into sentences, "Only %u free 
buffers remaining" should IMO also end with a period.

Thanks,
FJP

^ permalink raw reply

* Re: [PATCH] b43: Force-wake queues on init
From: Michael Buesch @ 2009-09-10 18:38 UTC (permalink / raw)
  To: Luis R. Rodriguez
  Cc: John W. Linville, Albert Herranz, linux-wireless,
	Broadcom Wireless
In-Reply-To: <43e72e890909101134j64bf22eai1c282cc1738cd968@mail.gmail.com>

On Thursday 10 September 2009 20:34:36 Luis R. Rodriguez wrote:
> On Thu, Sep 10, 2009 at 11:31 AM, Michael Buesch <mb@bu3sch.de> wrote:
> > Force wake the mac80211 queues on init.
> > Under rare circumstances they may be stopped, if a DMA error or
> > something else causes a device reset while a queue was stopped.
> 
> So this is a work around for some unknown issue on the driver?

No, it's a fix for a bug that should not trigger in practice very often.

-- 
Greetings, Michael.

^ permalink raw reply

* Re: [PATCH] b43: Force-wake queues on init
From: Luis R. Rodriguez @ 2009-09-10 18:34 UTC (permalink / raw)
  To: Michael Buesch
  Cc: John W. Linville, Albert Herranz, linux-wireless,
	Broadcom Wireless
In-Reply-To: <200909102031.47103.mb@bu3sch.de>

On Thu, Sep 10, 2009 at 11:31 AM, Michael Buesch <mb@bu3sch.de> wrote:
> Force wake the mac80211 queues on init.
> Under rare circumstances they may be stopped, if a DMA error or
> something else causes a device reset while a queue was stopped.

So this is a work around for some unknown issue on the driver?

  Luis

^ permalink raw reply

* [PATCH] b43: Force-wake queues on init
From: Michael Buesch @ 2009-09-10 18:31 UTC (permalink / raw)
  To: John W. Linville; +Cc: Broadcom Wireless, linux-wireless, Albert Herranz

Force wake the mac80211 queues on init.
Under rare circumstances they may be stopped, if a DMA error or
something else causes a device reset while a queue was stopped.

Signed-off-by: Michael Buesch <mb@bu3sch.de>

---

Index: wireless-testing/drivers/net/wireless/b43/main.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/main.c	2009-09-10 20:13:54.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/main.c	2009-09-10 20:26:43.000000000 +0200
@@ -4326,6 +4326,8 @@ static int b43_wireless_core_init(struct
 	b43_upload_card_macaddress(dev);
 	b43_security_init(dev);
 
+	ieee80211_wake_queues(dev->wl->hw);
+
 	b43_set_status(dev, B43_STAT_INITIALIZED);
 
 out:

-- 
Greetings, Michael.

^ permalink raw reply

* [PATCH] b43: Do not use _irqsafe callbacks
From: Michael Buesch @ 2009-09-10 18:22 UTC (permalink / raw)
  To: John W. Linville; +Cc: Broadcom Wireless, linux-wireless, Albert Herranz

We don't need to call the irqsafe callbacks.

Signed-off-by: Michael Buesch <mb@bu3sch.de>

---

Apply on top the other patches.

Index: wireless-testing/drivers/net/wireless/b43/dma.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/dma.c	2009-09-05 12:31:01.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/dma.c	2009-09-10 20:14:25.000000000 +0200
@@ -1428,9 +1428,9 @@ void b43_dma_handle_txstatus(struct b43_
 				ring->nr_failed_tx_packets++;
 			ring->nr_total_packet_tries += status->frame_count;
 #endif /* DEBUG */
-			ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb);
+			ieee80211_tx_status(dev->wl->hw, meta->skb);
 
-			/* skb is freed by ieee80211_tx_status_irqsafe() */
+			/* skb is freed by ieee80211_tx_status() */
 			meta->skb = NULL;
 		} else {
 			/* No need to call free_descriptor_buffer here, as
Index: wireless-testing/drivers/net/wireless/b43/pio.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/pio.c	2009-09-05 12:31:02.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/pio.c	2009-09-10 20:14:37.000000000 +0200
@@ -574,7 +574,7 @@ void b43_pio_handle_txstatus(struct b43_
 	q->buffer_used -= total_len;
 	q->free_packet_slots += 1;
 
-	ieee80211_tx_status_irqsafe(dev->wl->hw, pack->skb);
+	ieee80211_tx_status(dev->wl->hw, pack->skb);
 	pack->skb = NULL;
 	list_add(&pack->list, &q->packets_list);
 
Index: wireless-testing/drivers/net/wireless/b43/xmit.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/xmit.c	2009-09-06 16:17:08.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/xmit.c	2009-09-10 20:13:29.000000000 +0200
@@ -690,7 +690,7 @@ void b43_rx(struct b43_wldev *dev, struc
 	}
 
 	memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
-	ieee80211_rx_irqsafe(dev->wl->hw, skb);
+	ieee80211_rx(dev->wl->hw, skb);
 
 	return;
 drop:

-- 
Greetings, Michael.

^ permalink raw reply

* Re: iwlagn: order 2 page allocation failures
From: reinette chatre @ 2009-09-10 18:15 UTC (permalink / raw)
  To: Mel Gorman
  Cc: Frans Pop, Larry Finger, John W. Linville, Pekka Enberg,
	linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
	ipw3945-devel@lists.sourceforge.net, Andrew Morton,
	cl@linux-foundation.org, Krauss, Assaf, Johannes Berg,
	Abbas, Mohamed
In-Reply-To: <20090910090206.GA22276@csn.ul.ie>

On Thu, 2009-09-10 at 02:02 -0700, Mel Gorman wrote:

> > We can thus use ___GFP_NOWARN for the allocations in
> > iwl_rx_allocate and leave it to the restocking to find the needed memory
> > when it tried its allocations using GFP_KERNEL.
> > 
> 
> Would it be possible to use __GFP_NOWARN *unless* this allocation is
> necessary to receive the packet?

I think so.

> > I do think it is useful to let user know about these allocation
> > failures, even if it does not result in packet loss. Wrapping it in
> > net_ratelimit() will help though.
> > 
> 
> If it does not distinguish between failures causing packet loss and just a
> temporary issue, I'd be worried the messages would generate bug reports and
> we genuinely won't know if it's a real problem or not.

Good point.

> 
> As a total aside, there is still the problem that the driver is depending on
> order-2 allocations. On systems without swap, the allocation problem could be
> more severe as there are fewer pages the system can use to regain contiguity.

It seems that somebody did think about this in the initialization of
max_pkt_size (which is priv->hw_params.rx_buf_size - 256). If we use
max_pkt_size in the code that allocates the skb then the 256 added for
alignment will not cause it to go to an order-2 allocation. I do not
know why max_pkt_size is not used at the moment and will have to do some
digging to find out.


> 
> > How about the patch below?
> > 
> > diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
> > index b90adcb..f0ee72e 100644
> > --- a/drivers/net/wireless/iwlwifi/iwl-rx.c
> > +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
> > @@ -252,10 +252,11 @@ void iwl_rx_allocate(struct iwl_priv *priv, gfp_t priority)
> >  
> >  		/* Alloc a new receive buffer */
> >  		skb = alloc_skb(priv->hw_params.rx_buf_size + 256,
> > -						priority);
> > +				priority | __GFP_NOWARN);
> >  
> 
> So, would it be possible here to only remove __GFP_NOWARN if this is GFP_ATOMIC
> (implying we have to refill now) and the rxq->free_count is really small
> e.g. <= 2?

I like your suggestion. Considering the issue I would like to remove
__GFP_NOWARN even if it is GFP_KERNEL ... I think it is actually even
more of a problem if we are in GFP_KERNEL and not able to allocate
memory when running low on buffers. Also, with the queue size of 256 I
think we can use RX_LOW_WATERMARK here, which is 8.


> 
> >  		if (!skb) {
> > -			IWL_CRIT(priv, "Can not allocate SKB buffers\n");
> > +			if (net_ratelimit())
> > +				IWL_CRIT(priv, "Can not allocate SKB buffer.\n");
> 
> Similarly, could the message either be supressed when there is enough
> buffers in the RX queue or differenciate between enough buffers and
> things getting tight possibly causing packet loss?

Frans also had comments in this regard. Will do. 

> 
> The IWL_CRIT() part even is a hint - there is no guarantee that the allocation
> failure is really a critical problem.

Right.

How about this: 

>From bd2153dd9e4a0ad588adec38c580d67023d5587e Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Wed, 9 Sep 2009 15:41:00 -0700
Subject: [PATCH] iwlwifi: reduce noise when skb allocation fails

Replenishment of receive buffers is done in the tasklet handling
received frames as well as in a workqueue. When we are in the tasklet
we cannot sleep and thus attempt atomic skb allocations. It is generally
not a big problem if this fails since iwl_rx_allocate is always followed
by a call to iwl_rx_queue_restock which will queue the work to replenish
the buffers at a time when sleeping is allowed.

We thus add the __GFP_NOWARN to the skb allocation in iwl_rx_allocate to
reduce the noise if such an allocation fails while we still have enough
buffers. We do maintain the warning and the error message when we are low
on buffers to communicate to the user that there is a potential problem with
memory availability on system

This addresses issue reported upstream in thread "iwlagn: order 2 page
allocation failures" in
http://thread.gmane.org/gmane.linux.kernel.wireless.general/39187

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-rx.c       |   12 +++++++++---
 drivers/net/wireless/iwlwifi/iwl3945-base.c |    8 +++++++-
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index b90adcb..cb50cc7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -250,12 +250,18 @@ void iwl_rx_allocate(struct iwl_priv *priv, gfp_t priority)
 		}
 		spin_unlock_irqrestore(&rxq->lock, flags);
 
+		if (rxq->free_count > RX_LOW_WATERMARK)
+			priority |= __GFP_NOWARN;
 		/* Alloc a new receive buffer */
-		skb = alloc_skb(priv->hw_params.rx_buf_size + 256,
-						priority);
+		skb = alloc_skb(priv->hw_params.rx_buf_size + 256, priority);
 
 		if (!skb) {
-			IWL_CRIT(priv, "Can not allocate SKB buffers\n");
+			if (net_ratelimit())
+				IWL_DEBUG_INFO("Failed to allocate SKB buffer.\n");
+			if ((rxq->free_count <= RX_LOW_WATERMARK) &&
+			    net_ratelimit())
+				IWL_CRIT(priv, "Failed to allocate SKB buffer. Only %u free buffers remaining\n",
+					 rxq->free_count);
 			/* We don't reschedule replenish work here -- we will
 			 * call the restock method and if it still needs
 			 * more buffers it will schedule replenish */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 0909668..0d96b17 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1146,11 +1146,17 @@ static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority)
 		}
 		spin_unlock_irqrestore(&rxq->lock, flags);
 
+		if (rxq->free_count > RX_LOW_WATERMARK)
+			priority |= __GFP_NOWARN;
 		/* Alloc a new receive buffer */
 		skb = alloc_skb(priv->hw_params.rx_buf_size, priority);
 		if (!skb) {
 			if (net_ratelimit())
-				IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
+				IWL_DEBUG_INFO("Failed to allocate SKB buffer.\n");
+			if ((rxq->free_count <= RX_LOW_WATERMARK) &&
+			    net_ratelimit())
+				IWL_CRIT(priv, "Failed to allocate SKB buffer. Only %u free buffers remaining\n",
+					 rxq->free_count);
 			/* We don't reschedule replenish work here -- we will
 			 * call the restock method and if it still needs
 			 * more buffers it will schedule replenish */
-- 
1.5.6.3




^ permalink raw reply related

* [PATCH] b43: Add Soft-MAC SDIO device support
From: Michael Buesch @ 2009-09-10 17:34 UTC (permalink / raw)
  To: John W. Linville; +Cc: Broadcom Wireless, linux-wireless, Albert Herranz

From: Albert Herranz <albert_herranz@yahoo.es>

This adds support for Soft-MAC SDIO devices to b43.
The driver still lacks some fixes for SDIO devices, so it's currently
marked as BROKEN.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Signed-off-by: Michael Buesch <mb@bu3sch.de>

---

Depends on the SSB SDIO patch.


Index: wireless-testing/drivers/net/wireless/b43/Kconfig
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/Kconfig	2009-09-10 19:23:09.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/Kconfig	2009-09-10 19:33:24.000000000 +0200
@@ -61,11 +61,28 @@ config B43_PCMCIA
 
 	  If unsure, say N.
 
+config B43_SDIO
+	bool "Broadcom 43xx SDIO device support (EXPERIMENTAL)"
+	depends on B43 && SSB_SDIOHOST_POSSIBLE && EXPERIMENTAL && BROKEN
+	select SSB_SDIOHOST
+	---help---
+	  Broadcom 43xx device support for Soft-MAC SDIO devices.
+
+	  With this config option you can drive Soft-MAC b43 cards with a
+	  Secure Digital I/O interface.
+	  This includes the WLAN daughter card found on the Nintendo Wii
+	  video game console.
+	  Note that this does not support Broadcom 43xx Full-MAC devices.
+
+	  It's safe to select Y here, even if you don't have a B43 SDIO device.
+
+	  If unsure, say N.
+
 # Data transfers to the device via PIO
-# This is only needed on PCMCIA devices. All others can do DMA properly.
+# This is only needed on PCMCIA and SDIO devices. All others can do DMA properly.
 config B43_PIO
 	bool
-	depends on B43 && (B43_PCMCIA || B43_FORCE_PIO)
+	depends on B43 && (B43_SDIO || B43_PCMCIA || B43_FORCE_PIO)
 	select SSB_BLOCKIO
 	default y
 
Index: wireless-testing/drivers/net/wireless/b43/Makefile
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/Makefile	2009-09-10 19:23:09.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/Makefile	2009-09-10 19:23:20.000000000 +0200
@@ -16,6 +16,7 @@ b43-$(CONFIG_B43_PIO)		+= pio.o
 b43-y				+= rfkill.o
 b43-$(CONFIG_B43_LEDS)		+= leds.o
 b43-$(CONFIG_B43_PCMCIA)	+= pcmcia.o
+b43-$(CONFIG_B43_SDIO)		+= sdio.o
 b43-$(CONFIG_B43_DEBUG)		+= debugfs.o
 
 obj-$(CONFIG_B43)		+= b43.o
Index: wireless-testing/drivers/net/wireless/b43/main.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/main.c	2009-09-10 19:23:09.000000000 +0200
+++ wireless-testing/drivers/net/wireless/b43/main.c	2009-09-10 19:23:20.000000000 +0200
@@ -8,6 +8,9 @@
   Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
   Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
 
+  SDIO support
+  Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es>
+
   Some parts of the code in this file are derived from the ipw2200
   driver  Copyright(c) 2003 - 2004 Intel Corporation.
 
@@ -53,6 +56,8 @@
 #include "xmit.h"
 #include "lo.h"
 #include "pcmcia.h"
+#include "sdio.h"
+#include <linux/mmc/sdio_func.h>
 
 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
 MODULE_AUTHOR("Martin Langer");
@@ -1587,7 +1592,7 @@ static void b43_beacon_update_trigger_wo
 	mutex_lock(&wl->mutex);
 	dev = wl->current_dev;
 	if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
-		if (0 /*FIXME dev->dev->bus->bustype == SSB_BUSTYPE_SDIO*/) {
+		if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) {
 			/* wl->mutex is enough. */
 			b43_do_beacon_update_trigger_work(dev);
 			mmiowb();
@@ -1905,6 +1910,27 @@ static irqreturn_t b43_interrupt_handler
 	return ret;
 }
 
+/* SDIO interrupt handler. This runs in process context. */
+static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
+{
+	struct b43_wl *wl = dev->wl;
+	struct sdio_func *func = dev->dev->bus->host_sdio;
+	irqreturn_t ret;
+
+	if (unlikely(b43_status(dev) < B43_STAT_STARTED))
+		return;
+
+	mutex_lock(&wl->mutex);
+	sdio_release_host(func);
+
+	ret = b43_do_interrupt(dev);
+	if (ret == IRQ_WAKE_THREAD)
+		b43_do_interrupt_thread(dev);
+
+	sdio_claim_host(func);
+	mutex_unlock(&wl->mutex);
+}
+
 void b43_do_release_fw(struct b43_firmware_file *fw)
 {
 	release_firmware(fw->data);
@@ -3828,7 +3854,7 @@ redo:
 
 	/* Disable interrupts on the device. */
 	b43_set_status(dev, B43_STAT_INITIALIZED);
-	if (0 /*FIXME dev->dev->bus->bustype == SSB_BUSTYPE_SDIO*/) {
+	if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) {
 		/* wl->mutex is locked. That is enough. */
 		b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
 		b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);	/* Flush */
@@ -3858,7 +3884,10 @@ redo:
 		dev_kfree_skb(skb_dequeue(&wl->tx_queue));
 
 	b43_mac_suspend(dev);
-	free_irq(dev->dev->irq, dev);
+	if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO)
+		b43_sdio_free_irq(dev);
+	else
+		free_irq(dev->dev->irq, dev);
 	b43_leds_exit(dev);
 	b43dbg(wl, "Wireless interface stopped\n");
 
@@ -3873,12 +3902,20 @@ static int b43_wireless_core_start(struc
 	B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
 
 	drain_txstatus_queue(dev);
-	err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
-				   b43_interrupt_thread_handler,
-				   IRQF_SHARED, KBUILD_MODNAME, dev);
-	if (err) {
-		b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
-		goto out;
+	if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) {
+		err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
+		if (err) {
+			b43err(dev->wl, "Cannot request SDIO IRQ\n");
+			goto out;
+		}
+	} else {
+		err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
+					   b43_interrupt_thread_handler,
+					   IRQF_SHARED, KBUILD_MODNAME, dev);
+		if (err) {
+			b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
+			goto out;
+		}
 	}
 
 	/* We are ready to run. */
@@ -4270,7 +4307,9 @@ static int b43_wireless_core_init(struct
 	/* Maximum Contention Window */
 	b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
 
-	if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) {
+	if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) ||
+	    (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) ||
+	    B43_FORCE_PIO) {
 		dev->__using_pio_transfers = 1;
 		err = b43_pio_init(dev);
 	} else {
@@ -4944,7 +4983,7 @@ static struct ssb_driver b43_ssb_driver 
 static void b43_print_driverinfo(void)
 {
 	const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
-		   *feat_leds = "";
+		   *feat_leds = "", *feat_sdio = "";
 
 #ifdef CONFIG_B43_PCI_AUTOSELECT
 	feat_pci = "P";
@@ -4958,11 +4997,14 @@ static void b43_print_driverinfo(void)
 #ifdef CONFIG_B43_LEDS
 	feat_leds = "L";
 #endif
+#ifdef CONFIG_B43_SDIO
+	feat_sdio = "S";
+#endif
 	printk(KERN_INFO "Broadcom 43xx driver loaded "
-	       "[ Features: %s%s%s%s, Firmware-ID: "
+	       "[ Features: %s%s%s%s%s, Firmware-ID: "
 	       B43_SUPPORTED_FIRMWARE_ID " ]\n",
 	       feat_pci, feat_pcmcia, feat_nphy,
-	       feat_leds);
+	       feat_leds, feat_sdio);
 }
 
 static int __init b43_init(void)
@@ -4973,13 +5015,18 @@ static int __init b43_init(void)
 	err = b43_pcmcia_init();
 	if (err)
 		goto err_dfs_exit;
-	err = ssb_driver_register(&b43_ssb_driver);
+	err = b43_sdio_init();
 	if (err)
 		goto err_pcmcia_exit;
+	err = ssb_driver_register(&b43_ssb_driver);
+	if (err)
+		goto err_sdio_exit;
 	b43_print_driverinfo();
 
 	return err;
 
+err_sdio_exit:
+	b43_sdio_exit();
 err_pcmcia_exit:
 	b43_pcmcia_exit();
 err_dfs_exit:
@@ -4990,6 +5037,7 @@ err_dfs_exit:
 static void __exit b43_exit(void)
 {
 	ssb_driver_unregister(&b43_ssb_driver);
+	b43_sdio_exit();
 	b43_pcmcia_exit();
 	b43_debugfs_exit();
 }
Index: wireless-testing/drivers/net/wireless/b43/sdio.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/drivers/net/wireless/b43/sdio.c	2009-09-10 19:23:20.000000000 +0200
@@ -0,0 +1,197 @@
+/*
+ * Broadcom B43 wireless driver
+ *
+ * SDIO over Sonics Silicon Backplane bus glue for b43.
+ *
+ * Copyright (C) 2009 Albert Herranz
+ * Copyright (C) 2009 Michael Buesch <mb@bu3sch.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/ssb/ssb.h>
+
+#include "sdio.h"
+#include "b43.h"
+
+
+#define HNBU_CHIPID		0x01	/* vendor & device id */
+
+#define B43_SDIO_BLOCK_SIZE	64	/* rx fifo max size in bytes */
+
+
+static const struct b43_sdio_quirk {
+	u16 vendor;
+	u16 device;
+	unsigned int quirks;
+} b43_sdio_quirks[] = {
+	{ 0x14E4, 0x4318, SSB_QUIRK_SDIO_READ_AFTER_WRITE32, },
+	{ },
+};
+
+
+static unsigned int b43_sdio_get_quirks(u16 vendor, u16 device)
+{
+	const struct b43_sdio_quirk *q;
+
+	for (q = b43_sdio_quirks; q->quirks; q++) {
+		if (vendor == q->vendor && device == q->device)
+			return q->quirks;
+	}
+
+	return 0;
+}
+
+static void b43_sdio_interrupt_dispatcher(struct sdio_func *func)
+{
+	struct b43_sdio *sdio = sdio_get_drvdata(func);
+	struct b43_wldev *dev = sdio->irq_handler_opaque;
+
+	sdio->irq_handler(dev);
+}
+
+int b43_sdio_request_irq(struct b43_wldev *dev,
+			 void (*handler)(struct b43_wldev *dev))
+{
+	struct ssb_bus *bus = dev->dev->bus;
+	struct sdio_func *func = bus->host_sdio;
+	struct b43_sdio *sdio = sdio_get_drvdata(func);
+	int err;
+
+	sdio->irq_handler_opaque = dev;
+	sdio->irq_handler = handler;
+	sdio_claim_host(func);
+	err = sdio_claim_irq(func, b43_sdio_interrupt_dispatcher);
+	sdio_release_host(func);
+
+	return err;
+}
+
+void b43_sdio_free_irq(struct b43_wldev *dev)
+{
+	struct ssb_bus *bus = dev->dev->bus;
+	struct sdio_func *func = bus->host_sdio;
+	struct b43_sdio *sdio = sdio_get_drvdata(func);
+
+	sdio_claim_host(func);
+	sdio_release_irq(func);
+	sdio_release_host(func);
+	sdio->irq_handler_opaque = NULL;
+	sdio->irq_handler = NULL;
+}
+
+static int b43_sdio_probe(struct sdio_func *func,
+			  const struct sdio_device_id *id)
+{
+	struct b43_sdio *sdio;
+	struct sdio_func_tuple *tuple;
+	u16 vendor = 0, device = 0;
+	int error;
+
+	/* Look for the card chip identifier. */
+	tuple = func->tuples;
+	while (tuple) {
+		switch (tuple->code) {
+		case 0x80:
+			switch (tuple->data[0]) {
+			case HNBU_CHIPID:
+				if (tuple->size != 5)
+					break;
+				vendor = tuple->data[1] | (tuple->data[2]<<8);
+				device = tuple->data[3] | (tuple->data[4]<<8);
+				dev_info(&func->dev, "Chip ID %04x:%04x\n",
+					 vendor, device);
+				break;
+			default:
+				break;
+			}
+			break;
+		default:
+			break;
+		}
+		tuple = tuple->next;
+	}
+	if (!vendor || !device) {
+		error = -ENODEV;
+		goto out;
+	}
+
+	sdio_claim_host(func);
+	error = sdio_set_block_size(func, B43_SDIO_BLOCK_SIZE);
+	if (error) {
+		dev_err(&func->dev, "failed to set block size to %u bytes,"
+			" error %d\n", B43_SDIO_BLOCK_SIZE, error);
+		goto err_release_host;
+	}
+	error = sdio_enable_func(func);
+	if (error) {
+		dev_err(&func->dev, "failed to enable func, error %d\n", error);
+		goto err_release_host;
+	}
+	sdio_release_host(func);
+
+	sdio = kzalloc(sizeof(*sdio), GFP_KERNEL);
+	if (!sdio) {
+		error = -ENOMEM;
+		dev_err(&func->dev, "failed to allocate ssb bus\n");
+		goto err_disable_func;
+	}
+	error = ssb_bus_sdiobus_register(&sdio->ssb, func,
+					 b43_sdio_get_quirks(vendor, device));
+	if (error) {
+		dev_err(&func->dev, "failed to register ssb sdio bus,"
+			" error %d\n", error);
+		goto err_free_ssb;
+	}
+	sdio_set_drvdata(func, sdio);
+
+	return 0;
+
+err_free_ssb:
+	kfree(sdio);
+err_disable_func:
+	sdio_disable_func(func);
+err_release_host:
+	sdio_release_host(func);
+out:
+	return error;
+}
+
+static void b43_sdio_remove(struct sdio_func *func)
+{
+	struct b43_sdio *sdio = sdio_get_drvdata(func);
+
+	ssb_bus_unregister(&sdio->ssb);
+	sdio_disable_func(func);
+	kfree(sdio);
+	sdio_set_drvdata(func, NULL);
+}
+
+static const struct sdio_device_id b43_sdio_ids[] = {
+	{ SDIO_DEVICE(0x02d0, 0x044b) }, /* Nintendo Wii WLAN daughter card */
+	{ },
+};
+
+static struct sdio_driver b43_sdio_driver = {
+	.name		= "b43-sdio",
+	.id_table	= b43_sdio_ids,
+	.probe		= b43_sdio_probe,
+	.remove		= b43_sdio_remove,
+};
+
+int b43_sdio_init(void)
+{
+	return sdio_register_driver(&b43_sdio_driver);
+}
+
+void b43_sdio_exit(void)
+{
+	sdio_unregister_driver(&b43_sdio_driver);
+}
Index: wireless-testing/drivers/net/wireless/b43/sdio.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ wireless-testing/drivers/net/wireless/b43/sdio.h	2009-09-10 19:23:20.000000000 +0200
@@ -0,0 +1,45 @@
+#ifndef B43_SDIO_H_
+#define B43_SDIO_H_
+
+#include <linux/ssb/ssb.h>
+
+struct b43_wldev;
+
+
+#ifdef CONFIG_B43_SDIO
+
+struct b43_sdio {
+	struct ssb_bus ssb;
+	void *irq_handler_opaque;
+	void (*irq_handler)(struct b43_wldev *dev);
+};
+
+int b43_sdio_request_irq(struct b43_wldev *dev,
+			 void (*handler)(struct b43_wldev *dev));
+void b43_sdio_free_irq(struct b43_wldev *dev);
+
+int b43_sdio_init(void);
+void b43_sdio_exit(void);
+
+
+#else /* CONFIG_B43_SDIO */
+
+
+int b43_sdio_request_irq(struct b43_wldev *dev,
+			 void (*handler)(struct b43_wldev *dev))
+{
+	return -ENODEV;
+}
+void b43_sdio_free_irq(struct b43_wldev *dev)
+{
+}
+static inline int b43_sdio_init(void)
+{
+	return 0;
+}
+static inline void b43_sdio_exit(void)
+{
+}
+
+#endif /* CONFIG_B43_SDIO */
+#endif /* B43_SDIO_H_ */


-- 
Greetings, Michael.

^ permalink raw reply

* Re: [PATCH 1/2] input: Add KEY_RFKILL
From: Matthew Garrett @ 2009-09-10 17:31 UTC (permalink / raw)
  To: Luis R. Rodriguez; +Cc: linux-input, linux-wireless, marcel
In-Reply-To: <43e72e890909101027saf1ed35u23936729eccf3f92@mail.gmail.com>

On Thu, Sep 10, 2009 at 10:27:01AM -0700, Luis R. Rodriguez wrote:
> On Thu, Sep 10, 2009 at 10:21 AM, Matthew Garrett <mjg@redhat.com> wrote:
> 
> > This patch adds a new keycode, KEY_RFKILL_ALL.
> 
> >  include/linux/input.h |    2 ++
> >  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> > +#define KEY_RFKILL             0x20c /* Key that controls all radios */
> 
> But this above is KEY_RFKILL, not KEY_RKILL_ALL. Typo?

Sorry, yes - forgot to update the commit message to match the change in 
the patch and subject.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

^ permalink raw reply

* Re: [PATCH 1/2] input: Add KEY_RFKILL
From: Luis R. Rodriguez @ 2009-09-10 17:27 UTC (permalink / raw)
  To: Matthew Garrett; +Cc: linux-input, linux-wireless, marcel
In-Reply-To: <1252603292-20830-1-git-send-email-mjg@redhat.com>

On Thu, Sep 10, 2009 at 10:21 AM, Matthew Garrett <mjg@redhat.com> wrote:

> This patch adds a new keycode, KEY_RFKILL_ALL.

>  include/linux/input.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

> +#define KEY_RFKILL             0x20c /* Key that controls all radios */

But this above is KEY_RFKILL, not KEY_RKILL_ALL. Typo?

  Luis

^ permalink raw reply

* [PATCH 1/2] input: Add KEY_RFKILL
From: Matthew Garrett @ 2009-09-10 17:21 UTC (permalink / raw)
  To: linux-input; +Cc: linux-wireless, marcel, Matthew Garrett

Most laptops have keys that are intended to toggle all device state, not
just wifi. These are currently generally mapped to KEY_WLAN. As a result,
rfkill will only kill or enable wifi in response to the key press. This
confuses users and can make it difficult for them to enable bluetooth
and wwan devices.

This patch adds a new keycode, KEY_RFKILL_ALL. It indicates that the
system should toggle the state of all rfkillable devices.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
---
 include/linux/input.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/input.h b/include/linux/input.h
index 8b3bc3e..20a622e 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -595,6 +595,8 @@ struct input_absinfo {
 #define KEY_NUMERIC_STAR	0x20a
 #define KEY_NUMERIC_POUND	0x20b
 
+#define KEY_RFKILL		0x20c /* Key that controls all radios */
+
 /* We avoid low common keys in module aliases so they don't get huge. */
 #define KEY_MIN_INTERESTING	KEY_MUTE
 #define KEY_MAX			0x2ff
-- 
1.6.2.5


^ permalink raw reply related

* [PATCH 2/2] rfkill: Add support for KEY_RFKILL
From: Matthew Garrett @ 2009-09-10 17:21 UTC (permalink / raw)
  To: linux-input; +Cc: linux-wireless, marcel, Matthew Garrett
In-Reply-To: <1252603292-20830-1-git-send-email-mjg@redhat.com>

Add support for handling KEY_RFKILL in the rfkill input module. This
simply toggles the state of all rfkill devices. The comment in rfkill.h
is also updated to reflect that RFKILL_TYPE_ALL may be used inside the
kernel.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
---
 include/linux/rfkill.h |    2 +-
 net/rfkill/input.c     |    8 ++++++++
 2 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h
index 278777f..4c39f7e 100644
--- a/include/linux/rfkill.h
+++ b/include/linux/rfkill.h
@@ -32,7 +32,7 @@
 /**
  * enum rfkill_type - type of rfkill switch.
  *
- * @RFKILL_TYPE_ALL: toggles all switches (userspace only)
+ * @RFKILL_TYPE_ALL: toggles all switches (requests only - not a switch type)
  * @RFKILL_TYPE_WLAN: switch is on a 802.11 wireless network device.
  * @RFKILL_TYPE_BLUETOOTH: switch is on a bluetooth device.
  * @RFKILL_TYPE_UWB: switch is on a ultra wideband device.
diff --git a/net/rfkill/input.c b/net/rfkill/input.c
index a7295ad..3713d7e 100644
--- a/net/rfkill/input.c
+++ b/net/rfkill/input.c
@@ -212,6 +212,9 @@ static void rfkill_event(struct input_handle *handle, unsigned int type,
 		case KEY_WIMAX:
 			rfkill_schedule_toggle(RFKILL_TYPE_WIMAX);
 			break;
+		case KEY_RFKILL:
+			rfkill_schedule_toggle(RFKILL_TYPE_ALL);
+			break;
 		}
 	} else if (type == EV_SW && code == SW_RFKILL_ALL)
 		rfkill_schedule_evsw_rfkillall(data);
@@ -295,6 +298,11 @@ static const struct input_device_id rfkill_ids[] = {
 		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
 	},
 	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_RFKILL)] = BIT_MASK(KEY_RFKILL) },
+	},
+	{
 		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
 		.evbit = { BIT(EV_SW) },
 		.swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
-- 
1.6.2.5


^ permalink raw reply related

* Re: anything
From: Gabor Juhos @ 2009-09-10 15:58 UTC (permalink / raw)
  To: Luis R. Rodriguez; +Cc: Jon Nettleton, linux-wireless
In-Reply-To: <43e72e890909100854i8d16de8g9501630ce5c64787@mail.gmail.com>

Luis R. Rodriguez írta:
> On Thu, Sep 10, 2009 at 8:36 AM, Jon Nettleton <jon.nettleton@gmail.com> wrote:
>> subscribe linux-wireless
> 
> -EWRONG_REQUREST

-ETYPO :)


^ permalink raw reply


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