#include <linux/netdevice.h>
#include <linux/cache.h>
#include <linux/pci.h>
+#include <linux/pci-aspm.h>
#include <linux/ethtool.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
int ret;
u8 csz;
+ /*
+ * L0s needs to be disabled on all ath5k cards.
+ *
+ * For distributions shipping with CONFIG_PCIEASPM (this will be enabled
+ * by default in the future in 2.6.36) this will also mean both L1 and
+ * L0s will be disabled when a pre 1.1 PCIe device is detected. We do
+ * know L1 works correctly even for all ath5k pre 1.1 PCIe devices
+ * though but cannot currently undue the effect of a blacklist, for
+ * details you can read pcie_aspm_sanity_check() and see how it adjusts
+ * the device link capability.
+ *
+ * It may be possible in the future to implement some PCI API to allow
+ * drivers to override blacklists for pre 1.1 PCIe but for now it is
+ * best to accept that both L0s and L1 will be disabled completely for
+ * distributions shipping with CONFIG_PCIEASPM rather than having this
+ * issue present. Motivation for adding this new API will be to help
+ * with power consumption for some of these devices.
+ */
+ pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
+
ret = pci_enable_device(pdev);
if (ret) {
dev_err(&pdev->dev, "can't enable device\n");
goto err_free;
}
- /*If we passed the test malloc a ath5k_hw struct*/
+ /* If we passed the test, malloc an ath5k_hw struct */
sc->ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
if (!sc->ah) {
ret = -ENOMEM;
return 0;
err_ah:
ath5k_hw_detach(sc->ah);
-err_irq:
- free_irq(pdev->irq, sc);
err_free_ah:
kfree(sc->ah);
+err_irq:
+ free_irq(pdev->irq, sc);
err_free:
ieee80211_free_hw(hw);
err_map:
/*
* Check if the MAC has multi-rate retry support.
* We do this by trying to setup a fake extended
- * descriptor. MAC's that don't have support will
- * return false w/o doing anything. MAC's that do
+ * descriptor. MACs that don't have support will
+ * return false w/o doing anything. MACs that do
* support it will return true w/o doing anything.
*/
ret = ath5k_hw_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
/*
* Allocate hardware transmit queues: one queue for
* beacon frames and one data queue for each QoS
- * priority. Note that hw functions handle reseting
+ * priority. Note that hw functions handle resetting
* these queues at the needed time.
*/
ret = ath5k_beaconq_setup(ah);
/*
* NB: the order of these is important:
* o call the 802.11 layer before detaching ath5k_hw to
- * insure callbacks into the driver to delete global
+ * ensure callbacks into the driver to delete global
* key cache entries can be handled
* o reclaim the tx queue data structures after calling
* the 802.11 layer as we'll get called back to reclaim
PCI_DMA_TODEVICE);
rate = ieee80211_get_tx_rate(sc->hw, info);
+ if (!rate) {
+ ret = -EINVAL;
+ goto err_unmap;
+ }
if (info->flags & IEEE80211_TX_CTL_NO_ACK)
flags |= AR5K_TXDESC_NOACK;
/*
* Enable interrupts only for EOL and DESC conditions.
* We mark tx descriptors to receive a DESC interrupt
- * when a tx queue gets deep; otherwise waiting for the
+ * when a tx queue gets deep; otherwise we wait for the
* EOL to reap descriptors. Note that this is done to
* reduce interrupt load and this only defers reaping
* descriptors, never transmitting frames. Aside from
struct ath5k_buf *bf;
int ret;
- common->rx_bufsize = roundup(IEEE80211_MAX_LEN, common->cachelsz);
+ common->rx_bufsize = roundup(IEEE80211_MAX_FRAME_LEN, common->cachelsz);
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rx_bufsize %u\n",
common->cachelsz, common->rx_bufsize);
}
/*
- * Compute padding position. skb must contains an IEEE 802.11 frame
+ * Compute padding position. skb must contain an IEEE 802.11 frame
*/
static int ath5k_common_padpos(struct sk_buff *skb)
{
}
/*
- * This function expects a 802.11 frame and returns the number of
- * bytes added, or -1 if we don't have enought header room.
+ * This function expects an 802.11 frame and returns the number of
+ * bytes added, or -1 if we don't have enough header room.
*/
-
static int ath5k_add_padding(struct sk_buff *skb)
{
int padpos = ath5k_common_padpos(skb);
}
/*
- * This function expects a 802.11 frame and returns the number of
- * bytes removed
+ * The MAC header is padded to have 32-bit boundary if the
+ * packet payload is non-zero. The general calculation for
+ * padsize would take into account odd header lengths:
+ * padsize = 4 - (hdrlen & 3); however, since only
+ * even-length headers are used, padding can only be 0 or 2
+ * bytes and we can optimize this a bit. We must not try to
+ * remove padding from short control frames that do not have a
+ * payload.
+ *
+ * This function expects an 802.11 frame and returns the number of
+ * bytes removed.
*/
-
static int ath5k_remove_padding(struct sk_buff *skb)
{
int padpos = ath5k_common_padpos(skb);
{
struct ieee80211_rx_status *rxs;
- /* The MAC header is padded to have 32-bit boundary if the
- * packet payload is non-zero. The general calculation for
- * padsize would take into account odd header lengths:
- * padsize = (4 - hdrlen % 4) % 4; However, since only
- * even-length headers are used, padding can only be 0 or 2
- * bytes and we can optimize this a bit. In addition, we must
- * not try to remove padding from short control frames that do
- * not have payload. */
ath5k_remove_padding(skb);
rxs = IEEE80211_SKB_RXCB(skb);
return true;
}
- /* let crypto-error packets fall through in MNTR */
- if ((rs->rs_status & ~(AR5K_RXERR_DECRYPT|AR5K_RXERR_MIC)) ||
- sc->opmode != NL80211_IFTYPE_MONITOR)
+ /* reject any frames with non-crypto errors */
+ if (rs->rs_status & ~(AR5K_RXERR_DECRYPT))
return false;
}
* default antenna which is supposed to be an omni.
*
* Note2: On sectored scenarios it's possible to have
- * multiple antennas (1omni -the default- and 14 sectors)
- * so if we choose to actually support this mode we need
- * to allow user to set how many antennas we have and tweak
- * the code below to send beacons on all of them.
+ * multiple antennas (1 omni -- the default -- and 14
+ * sectors), so if we choose to actually support this
+ * mode, we need to allow the user to set how many antennas
+ * we have and tweak the code below to send beacons
+ * on all of them.
*/
if (ah->ah_ant_mode == AR5K_ANTMODE_SECTOR_AP)
antenna = sc->bsent & 4 ? 2 : 1;
ATH5K_DBG_UNLIMIT(sc, ATH5K_DEBUG_BEACON, "in beacon_send\n");
- if (unlikely(bf->skb == NULL || sc->opmode == NL80211_IFTYPE_STATION ||
- sc->opmode == NL80211_IFTYPE_MONITOR)) {
+ if (unlikely(bf->skb == NULL || sc->opmode == NL80211_IFTYPE_STATION)) {
ATH5K_WARN(sc, "bf=%p bf_skb=%p\n", bf, bf ? bf->skb : NULL);
return;
}
/*
* Check if the previous beacon has gone out. If
- * not don't don't try to post another, skip this
+ * not, don't don't try to post another: skip this
* period and wait for the next. Missed beacons
* indicate a problem and should not occur. If we
* miss too many consecutive beacons reset the device.
ath5k_debug_dump_skb(sc, skb, "TX ", 1);
- if (sc->opmode == NL80211_IFTYPE_MONITOR)
- ATH5K_DBG(sc, ATH5K_DEBUG_XMIT, "tx in monitor (scan?)\n");
-
/*
- * the hardware expects the header padded to 4 byte boundaries
- * if this is not the case we add the padding after the header
+ * The hardware expects the header padded to 4 byte boundaries.
+ * If this is not the case, we add the padding after the header.
*/
padsize = ath5k_add_padding(skb);
if (padsize < 0) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_MONITOR:
sc->opmode = vif->type;
break;
default:
rfilt |= AR5K_RX_FILTER_PHYERR;
/* FIF_BCN_PRBRESP_PROMISC really means to enable beacons
- * and probes for any BSSID, this needs testing */
+ * and probes for any BSSID */
if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
- rfilt |= AR5K_RX_FILTER_BEACON | AR5K_RX_FILTER_PROBEREQ;
+ rfilt |= AR5K_RX_FILTER_BEACON;
/* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not
* set we should only pass on control frames for this
switch (sc->opmode) {
case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_MONITOR:
rfilt |= AR5K_RX_FILTER_CONTROL |
AR5K_RX_FILTER_BEACON |
AR5K_RX_FILTER_PROBEREQ |
/* Set multicast bits */
ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]);
- /* Set the cached hw filter flags, this will alter actually
+ /* Set the cached hw filter flags, this will later actually
* be set in HW */
sc->filter_flags = rfilt;
if (sc->opmode == NL80211_IFTYPE_AP)
return -EOPNOTSUPP;
- switch (key->alg) {
- case ALG_WEP:
- case ALG_TKIP:
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ case WLAN_CIPHER_SUITE_TKIP:
break;
- case ALG_CCMP:
+ case WLAN_CIPHER_SUITE_CCMP:
if (sc->ah->ah_aes_support)
break;
/* Cache for later use during resets */
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
common->curaid = 0;
- ath5k_hw_set_associd(ah);
+ ath5k_hw_set_bssid(ah);
mmiowb();
}
"Bss Info ASSOC %d, bssid: %pM\n",
bss_conf->aid, common->curbssid);
common->curaid = bss_conf->aid;
- ath5k_hw_set_associd(ah);
+ ath5k_hw_set_bssid(ah);
/* Once ANI is available you would start it here */
}
}
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff