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-rw-r--r--drivers/net/wireless/ath/ath.h14
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h13
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c136
-rw-r--r--drivers/net/wireless/ath/ath9k/recv.c2
4 files changed, 85 insertions, 80 deletions
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 4af13628baf..9e05648356f 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -21,6 +21,16 @@
#include <linux/if_ether.h>
#include <net/mac80211.h>
+/*
+ * The key cache is used for h/w cipher state and also for
+ * tracking station state such as the current tx antenna.
+ * We also setup a mapping table between key cache slot indices
+ * and station state to short-circuit node lookups on rx.
+ * Different parts have different size key caches. We handle
+ * up to ATH_KEYMAX entries (could dynamically allocate state).
+ */
+#define ATH_KEYMAX 128 /* max key cache size we handle */
+
static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
struct ath_ani {
@@ -89,6 +99,10 @@ struct ath_common {
u32 rx_bufsize;
+ u32 keymax;
+ DECLARE_BITMAP(keymap, ATH_KEYMAX);
+ u8 splitmic;
+
struct ath_regulatory regulatory;
const struct ath_ops *ops;
const struct ath_bus_ops *bus_ops;
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 377b0eac5e4..88969cbae13 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -492,16 +492,6 @@ struct ath_led {
#define ATH_CHAN_MAX 255
#define IEEE80211_WEP_NKID 4 /* number of key ids */
-/*
- * The key cache is used for h/w cipher state and also for
- * tracking station state such as the current tx antenna.
- * We also setup a mapping table between key cache slot indices
- * and station state to short-circuit node lookups on rx.
- * Different parts have different size key caches. We handle
- * up to ATH_KEYMAX entries (could dynamically allocate state).
- */
-#define ATH_KEYMAX 128 /* max key cache size we handle */
-
#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
#define ATH_RSSI_DUMMY_MARKER 0x127
#define ATH_RATE_DUMMY_MARKER 0
@@ -562,9 +552,6 @@ struct ath_softc {
u16 curtxpow;
u8 nbcnvifs;
u16 nvifs;
- u32 keymax;
- DECLARE_BITMAP(keymap, ATH_KEYMAX);
- u8 splitmic;
bool ps_enabled;
unsigned long ps_usecount;
enum ath9k_int imask;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 01ac8974eb0..3c02b977a61 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -733,10 +733,11 @@ static u32 ath_get_extchanmode(struct ath_softc *sc,
return chanmode;
}
-static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key,
+static int ath_setkey_tkip(struct ath_common *common, u16 keyix, const u8 *key,
struct ath9k_keyval *hk, const u8 *addr,
bool authenticator)
{
+ struct ath_hw *ah = common->ah;
const u8 *key_rxmic;
const u8 *key_txmic;
@@ -756,42 +757,42 @@ static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key,
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic));
}
- return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr);
+ return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
}
- if (!sc->splitmic) {
+ if (!common->splitmic) {
/* TX and RX keys share the same key cache entry. */
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic));
- return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr);
+ return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
}
/* Separate key cache entries for TX and RX */
/* TX key goes at first index, RX key at +32. */
memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
- if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) {
+ if (!ath9k_hw_set_keycache_entry(ah, keyix, hk, NULL)) {
/* TX MIC entry failed. No need to proceed further */
- ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
+ ath_print(common, ATH_DBG_FATAL,
"Setting TX MIC Key Failed\n");
return 0;
}
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
/* XXX delete tx key on failure? */
- return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr);
+ return ath9k_hw_set_keycache_entry(ah, keyix + 32, hk, addr);
}
-static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc)
+static int ath_reserve_key_cache_slot_tkip(struct ath_common *common)
{
int i;
- for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) {
- if (test_bit(i, sc->keymap) ||
- test_bit(i + 64, sc->keymap))
+ for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
+ if (test_bit(i, common->keymap) ||
+ test_bit(i + 64, common->keymap))
continue; /* At least one part of TKIP key allocated */
- if (sc->splitmic &&
- (test_bit(i + 32, sc->keymap) ||
- test_bit(i + 64 + 32, sc->keymap)))
+ if (common->splitmic &&
+ (test_bit(i + 32, common->keymap) ||
+ test_bit(i + 64 + 32, common->keymap)))
continue; /* At least one part of TKIP key allocated */
/* Found a free slot for a TKIP key */
@@ -800,60 +801,60 @@ static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc)
return -1;
}
-static int ath_reserve_key_cache_slot(struct ath_softc *sc)
+static int ath_reserve_key_cache_slot(struct ath_common *common)
{
int i;
/* First, try to find slots that would not be available for TKIP. */
- if (sc->splitmic) {
- for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) {
- if (!test_bit(i, sc->keymap) &&
- (test_bit(i + 32, sc->keymap) ||
- test_bit(i + 64, sc->keymap) ||
- test_bit(i + 64 + 32, sc->keymap)))
+ if (common->splitmic) {
+ for (i = IEEE80211_WEP_NKID; i < common->keymax / 4; i++) {
+ if (!test_bit(i, common->keymap) &&
+ (test_bit(i + 32, common->keymap) ||
+ test_bit(i + 64, common->keymap) ||
+ test_bit(i + 64 + 32, common->keymap)))
return i;
- if (!test_bit(i + 32, sc->keymap) &&
- (test_bit(i, sc->keymap) ||
- test_bit(i + 64, sc->keymap) ||
- test_bit(i + 64 + 32, sc->keymap)))
+ if (!test_bit(i + 32, common->keymap) &&
+ (test_bit(i, common->keymap) ||
+ test_bit(i + 64, common->keymap) ||
+ test_bit(i + 64 + 32, common->keymap)))
return i + 32;
- if (!test_bit(i + 64, sc->keymap) &&
- (test_bit(i , sc->keymap) ||
- test_bit(i + 32, sc->keymap) ||
- test_bit(i + 64 + 32, sc->keymap)))
+ if (!test_bit(i + 64, common->keymap) &&
+ (test_bit(i , common->keymap) ||
+ test_bit(i + 32, common->keymap) ||
+ test_bit(i + 64 + 32, common->keymap)))
return i + 64;
- if (!test_bit(i + 64 + 32, sc->keymap) &&
- (test_bit(i, sc->keymap) ||
- test_bit(i + 32, sc->keymap) ||
- test_bit(i + 64, sc->keymap)))
+ if (!test_bit(i + 64 + 32, common->keymap) &&
+ (test_bit(i, common->keymap) ||
+ test_bit(i + 32, common->keymap) ||
+ test_bit(i + 64, common->keymap)))
return i + 64 + 32;
}
} else {
- for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) {
- if (!test_bit(i, sc->keymap) &&
- test_bit(i + 64, sc->keymap))
+ for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
+ if (!test_bit(i, common->keymap) &&
+ test_bit(i + 64, common->keymap))
return i;
- if (test_bit(i, sc->keymap) &&
- !test_bit(i + 64, sc->keymap))
+ if (test_bit(i, common->keymap) &&
+ !test_bit(i + 64, common->keymap))
return i + 64;
}
}
/* No partially used TKIP slots, pick any available slot */
- for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) {
+ for (i = IEEE80211_WEP_NKID; i < common->keymax; i++) {
/* Do not allow slots that could be needed for TKIP group keys
* to be used. This limitation could be removed if we know that
* TKIP will not be used. */
if (i >= 64 && i < 64 + IEEE80211_WEP_NKID)
continue;
- if (sc->splitmic) {
+ if (common->splitmic) {
if (i >= 32 && i < 32 + IEEE80211_WEP_NKID)
continue;
if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID)
continue;
}
- if (!test_bit(i, sc->keymap))
+ if (!test_bit(i, common->keymap))
return i; /* Found a free slot for a key */
}
@@ -861,11 +862,12 @@ static int ath_reserve_key_cache_slot(struct ath_softc *sc)
return -1;
}
-static int ath_key_config(struct ath_softc *sc,
+static int ath_key_config(struct ath_common *common,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
+ struct ath_hw *ah = common->ah;
struct ath9k_keyval hk;
const u8 *mac = NULL;
int ret = 0;
@@ -911,48 +913,50 @@ static int ath_key_config(struct ath_softc *sc,
mac = sta->addr;
if (key->alg == ALG_TKIP)
- idx = ath_reserve_key_cache_slot_tkip(sc);
+ idx = ath_reserve_key_cache_slot_tkip(common);
else
- idx = ath_reserve_key_cache_slot(sc);
+ idx = ath_reserve_key_cache_slot(common);
if (idx < 0)
return -ENOSPC; /* no free key cache entries */
}
if (key->alg == ALG_TKIP)
- ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac,
+ ret = ath_setkey_tkip(common, idx, key->key, &hk, mac,
vif->type == NL80211_IFTYPE_AP);
else
- ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac);
+ ret = ath9k_hw_set_keycache_entry(ah, idx, &hk, mac);
if (!ret)
return -EIO;
- set_bit(idx, sc->keymap);
+ set_bit(idx, common->keymap);
if (key->alg == ALG_TKIP) {
- set_bit(idx + 64, sc->keymap);
- if (sc->splitmic) {
- set_bit(idx + 32, sc->keymap);
- set_bit(idx + 64 + 32, sc->keymap);
+ set_bit(idx + 64, common->keymap);
+ if (common->splitmic) {
+ set_bit(idx + 32, common->keymap);
+ set_bit(idx + 64 + 32, common->keymap);
}
}
return idx;
}
-static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key)
+static void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key)
{
- ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx);
+ struct ath_hw *ah = common->ah;
+
+ ath9k_hw_keyreset(ah, key->hw_key_idx);
if (key->hw_key_idx < IEEE80211_WEP_NKID)
return;
- clear_bit(key->hw_key_idx, sc->keymap);
+ clear_bit(key->hw_key_idx, common->keymap);
if (key->alg != ALG_TKIP)
return;
- clear_bit(key->hw_key_idx + 64, sc->keymap);
- if (sc->splitmic) {
- clear_bit(key->hw_key_idx + 32, sc->keymap);
- clear_bit(key->hw_key_idx + 64 + 32, sc->keymap);
+ clear_bit(key->hw_key_idx + 64, common->keymap);
+ if (common->splitmic) {
+ clear_bit(key->hw_key_idx + 32, common->keymap);
+ clear_bit(key->hw_key_idx + 64 + 32, common->keymap);
}
}
@@ -1679,19 +1683,19 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
}
/* Get the hardware key cache size. */
- sc->keymax = ah->caps.keycache_size;
- if (sc->keymax > ATH_KEYMAX) {
+ common->keymax = ah->caps.keycache_size;
+ if (common->keymax > ATH_KEYMAX) {
ath_print(common, ATH_DBG_ANY,
"Warning, using only %u entries in %u key cache\n",
- ATH_KEYMAX, sc->keymax);
- sc->keymax = ATH_KEYMAX;
+ ATH_KEYMAX, common->keymax);
+ common->keymax = ATH_KEYMAX;
}
/*
* Reset the key cache since some parts do not
* reset the contents on initial power up.
*/
- for (i = 0; i < sc->keymax; i++)
+ for (i = 0; i < common->keymax; i++)
ath9k_hw_keyreset(ah, (u16) i);
/* default to MONITOR mode */
@@ -1788,7 +1792,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
ATH9K_CIPHER_MIC, NULL)
&& ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT,
0, NULL))
- sc->splitmic = 1;
+ common->splitmic = 1;
/* turn on mcast key search if possible */
if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
@@ -2917,7 +2921,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
switch (cmd) {
case SET_KEY:
- ret = ath_key_config(sc, vif, sta, key);
+ ret = ath_key_config(common, vif, sta, key);
if (ret >= 0) {
key->hw_key_idx = ret;
/* push IV and Michael MIC generation to stack */
@@ -2930,7 +2934,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
}
break;
case DISABLE_KEY:
- ath_key_delete(sc, key);
+ ath_key_delete(common, key);
break;
default:
ret = -EINVAL;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index c4a8663af3f..3abefb580a4 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -856,7 +856,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
&& !decrypt_error && skb->len >= hdrlen + 4) {
keyix = skb->data[hdrlen + 3] >> 6;
- if (test_bit(keyix, sc->keymap))
+ if (test_bit(keyix, common->keymap))
rxs->flag |= RX_FLAG_DECRYPTED;
}
if (ah->sw_mgmt_crypto &&
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-26 05:46:18 +0000