diff options
Diffstat (limited to 'drivers/net/wireless/hostap/hostap_hw.c')
| -rw-r--r-- | drivers/net/wireless/hostap/hostap_hw.c | 234 |
1 files changed, 102 insertions, 132 deletions
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index 7be68db6f30..6df3ee561d5 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -38,6 +38,7 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/if_arp.h> #include <linux/delay.h> #include <linux/random.h> @@ -46,8 +47,7 @@ #include <linux/rtnetlink.h> #include <linux/wireless.h> #include <net/iw_handler.h> -#include <net/ieee80211.h> -#include <net/ieee80211_crypt.h> +#include <net/lib80211.h> #include <asm/irq.h> #include "hostap_80211.h" @@ -130,8 +130,7 @@ static void prism2_check_sta_fw_version(local_info_t *local); #ifdef PRISM2_DOWNLOAD_SUPPORT /* hostap_download.c */ -static int prism2_download_aux_dump(struct net_device *dev, - unsigned int addr, int len, u8 *buf); +static const struct file_operations prism2_download_aux_dump_proc_fops; static u8 * prism2_read_pda(struct net_device *dev); static int prism2_download(local_info_t *local, struct prism2_download_param *param); @@ -348,11 +347,9 @@ static int hfa384x_cmd(struct net_device *dev, u16 cmd, u16 param0, return -EINTR; entry = kzalloc(sizeof(*entry), GFP_ATOMIC); - if (entry == NULL) { - printk(KERN_DEBUG "%s: hfa384x_cmd - kmalloc failed\n", - dev->name); + if (entry == NULL) return -ENOMEM; - } + atomic_set(&entry->usecnt, 1); entry->type = CMD_SLEEP; entry->cmd = cmd; @@ -516,11 +513,9 @@ static int hfa384x_cmd_callback(struct net_device *dev, u16 cmd, u16 param0, } entry = kzalloc(sizeof(*entry), GFP_ATOMIC); - if (entry == NULL) { - printk(KERN_DEBUG "%s: hfa384x_cmd_callback - kmalloc " - "failed\n", dev->name); + if (entry == NULL) return -ENOMEM; - } + atomic_set(&entry->usecnt, 1); entry->type = CMD_CALLBACK; entry->cmd = cmd; @@ -1424,13 +1419,13 @@ static int prism2_hw_init2(struct net_device *dev, int initial) prism2_check_sta_fw_version(local); if (hfa384x_get_rid(dev, HFA384X_RID_CNFOWNMACADDR, - &dev->dev_addr, 6, 1) < 0) { + dev->dev_addr, 6, 1) < 0) { printk("%s: could not get own MAC address\n", dev->name); } list_for_each(ptr, &local->hostap_interfaces) { iface = list_entry(ptr, struct hostap_interface, list); - memcpy(iface->dev->dev_addr, dev->dev_addr, ETH_ALEN); + eth_hw_addr_inherit(iface->dev, dev); } } else if (local->fw_ap) prism2_check_sta_fw_version(local); @@ -1471,7 +1466,7 @@ static int prism2_hw_enable(struct net_device *dev, int initial) * before it starts acting as an AP, so reset port automatically * here just in case */ if (initial && prism2_reset_port(dev)) { - printk("%s: MAC port 0 reseting failed\n", dev->name); + printk("%s: MAC port 0 resetting failed\n", dev->name); return 1; } @@ -1562,7 +1557,7 @@ static void prism2_hw_reset(struct net_device *dev) static long last_reset = 0; /* do not reset card more than once per second to avoid ending up in a - * busy loop reseting the card */ + * busy loop resetting the card */ if (time_before_eq(jiffies, last_reset + HZ)) return; last_reset = jiffies; @@ -1683,7 +1678,7 @@ static int prism2_get_txfid_idx(local_info_t *local) PDEBUG(DEBUG_EXTRA2, "prism2_get_txfid_idx: no room in txfid buf: " "packet dropped\n"); - local->stats.tx_dropped++; + local->dev->stats.tx_dropped++; return -1; } @@ -1788,11 +1783,9 @@ static int prism2_transmit(struct net_device *dev, int idx) prism2_transmit_cb, (long) idx); if (res) { - struct net_device_stats *stats; printk(KERN_DEBUG "%s: prism2_transmit: CMDCODE_TRANSMIT " "failed (res=%d)\n", dev->name, res); - stats = hostap_get_stats(dev); - stats->tx_dropped++; + dev->stats.tx_dropped++; netif_wake_queue(dev); return -1; } @@ -1840,8 +1833,8 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev) hdr_len = 24; skb_copy_from_linear_data(skb, &txdesc.frame_control, hdr_len); fc = le16_to_cpu(txdesc.frame_control); - if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA && - (fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS) && + if (ieee80211_is_data(txdesc.frame_control) && + ieee80211_has_a4(txdesc.frame_control) && skb->len >= 30) { /* Addr4 */ skb_copy_from_linear_data_offset(skb, hdr_len, txdesc.addr4, @@ -1899,7 +1892,7 @@ fail: /* Some SMP systems have reported number of odd errors with hostap_pci. fid * register has changed values between consecutive reads for an unknown reason. * This should really not happen, so more debugging is needed. This test - * version is a big slower, but it will detect most of such register changes + * version is a bit slower, but it will detect most of such register changes * and will try to get the correct fid eventually. */ #define EXTRA_FID_READ_TESTS @@ -1940,12 +1933,10 @@ static void prism2_rx(local_info_t *local) struct net_device *dev = local->dev; int res, rx_pending = 0; u16 len, hdr_len, rxfid, status, macport; - struct net_device_stats *stats; struct hfa384x_rx_frame rxdesc; struct sk_buff *skb = NULL; prism2_callback(local, PRISM2_CALLBACK_RX_START); - stats = hostap_get_stats(dev); rxfid = prism2_read_fid_reg(dev, HFA384X_RXFID_OFF); #ifndef final_version @@ -2032,7 +2023,7 @@ static void prism2_rx(local_info_t *local) return; rx_dropped: - stats->rx_dropped++; + dev->stats.rx_dropped++; if (skb) dev_kfree_skb(skb); goto rx_exit; @@ -2082,7 +2073,7 @@ static void hostap_rx_skb(local_info_t *local, struct sk_buff *skb) stats.rate = rxdesc->rate; /* Convert Prism2 RX structure into IEEE 802.11 header */ - hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(rxdesc->frame_control)); + hdrlen = hostap_80211_get_hdrlen(rxdesc->frame_control); if (hdrlen > rx_hdrlen) hdrlen = rx_hdrlen; @@ -2184,7 +2175,7 @@ static void hostap_tx_callback(local_info_t *local, struct hostap_tx_callback_info *cb; /* Make sure that frame was from us. */ - if (memcmp(txdesc->addr2, local->dev->dev_addr, ETH_ALEN)) { + if (!ether_addr_equal(txdesc->addr2, local->dev->dev_addr)) { printk(KERN_DEBUG "%s: TX callback - foreign frame\n", local->dev->name); return; @@ -2204,7 +2195,7 @@ static void hostap_tx_callback(local_info_t *local, return; } - hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(txdesc->frame_control)); + hdrlen = hostap_80211_get_hdrlen(txdesc->frame_control); len = le16_to_cpu(txdesc->data_len); skb = dev_alloc_skb(hdrlen + len); if (skb == NULL) { @@ -2315,8 +2306,7 @@ static void hostap_sta_tx_exc_tasklet(unsigned long data) if (skb->len >= sizeof(*txdesc)) { /* Convert Prism2 RX structure into IEEE 802.11 header */ - u16 fc = le16_to_cpu(txdesc->frame_control); - int hdrlen = hostap_80211_get_hdrlen(fc); + int hdrlen = hostap_80211_get_hdrlen(txdesc->frame_control); memmove(skb_pull(skb, sizeof(*txdesc) - hdrlen), &txdesc->frame_control, hdrlen); @@ -2335,13 +2325,9 @@ static void prism2_txexc(local_info_t *local) int show_dump, res; char *payload = NULL; struct hfa384x_tx_frame txdesc; - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); - DECLARE_MAC_BUF(mac4); show_dump = local->frame_dump & PRISM2_DUMP_TXEXC_HDR; - local->stats.tx_errors++; + dev->stats.tx_errors++; res = hostap_tx_compl_read(local, 1, &txdesc, &payload); HFA384X_OUTW(HFA384X_EV_TXEXC, HFA384X_EVACK_OFF); @@ -2398,15 +2384,15 @@ static void prism2_txexc(local_info_t *local) PDEBUG(DEBUG_EXTRA, " retry_count=%d tx_rate=%d fc=0x%04x " "(%s%s%s::%d%s%s)\n", txdesc.retry_count, txdesc.tx_rate, fc, - WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT ? "Mgmt" : "", - WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_CTL ? "Ctrl" : "", - WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA ? "Data" : "", - WLAN_FC_GET_STYPE(fc) >> 4, - fc & IEEE80211_FCTL_TODS ? " ToDS" : "", - fc & IEEE80211_FCTL_FROMDS ? " FromDS" : ""); - PDEBUG(DEBUG_EXTRA, " A1=%s A2=%s A3=%s A4=%s\n", - print_mac(mac, txdesc.addr1), print_mac(mac2, txdesc.addr2), - print_mac(mac3, txdesc.addr3), print_mac(mac4, txdesc.addr4)); + ieee80211_is_mgmt(txdesc.frame_control) ? "Mgmt" : "", + ieee80211_is_ctl(txdesc.frame_control) ? "Ctrl" : "", + ieee80211_is_data(txdesc.frame_control) ? "Data" : "", + (fc & IEEE80211_FCTL_STYPE) >> 4, + ieee80211_has_tods(txdesc.frame_control) ? " ToDS" : "", + ieee80211_has_fromds(txdesc.frame_control) ? " FromDS" : ""); + PDEBUG(DEBUG_EXTRA, " A1=%pM A2=%pM A3=%pM A4=%pM\n", + txdesc.addr1, txdesc.addr2, + txdesc.addr3, txdesc.addr4); } @@ -2631,6 +2617,18 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id) iface = netdev_priv(dev); local = iface->local; + /* Detect early interrupt before driver is fully configured */ + spin_lock(&local->irq_init_lock); + if (!dev->base_addr) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n", + dev->name); + } + spin_unlock(&local->irq_init_lock); + return IRQ_HANDLED; + } + spin_unlock(&local->irq_init_lock); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0); if (local->func->card_present && !local->func->card_present(local)) { @@ -2792,50 +2790,11 @@ static void prism2_check_sta_fw_version(local_info_t *local) } -static void prism2_crypt_deinit_entries(local_info_t *local, int force) -{ - struct list_head *ptr, *n; - struct ieee80211_crypt_data *entry; - - for (ptr = local->crypt_deinit_list.next, n = ptr->next; - ptr != &local->crypt_deinit_list; ptr = n, n = ptr->next) { - entry = list_entry(ptr, struct ieee80211_crypt_data, list); - - if (atomic_read(&entry->refcnt) != 0 && !force) - continue; - - list_del(ptr); - - if (entry->ops) - entry->ops->deinit(entry->priv); - kfree(entry); - } -} - - -static void prism2_crypt_deinit_handler(unsigned long data) -{ - local_info_t *local = (local_info_t *) data; - unsigned long flags; - - spin_lock_irqsave(&local->lock, flags); - prism2_crypt_deinit_entries(local, 0); - if (!list_empty(&local->crypt_deinit_list)) { - printk(KERN_DEBUG "%s: entries remaining in delayed crypt " - "deletion list\n", local->dev->name); - local->crypt_deinit_timer.expires = jiffies + HZ; - add_timer(&local->crypt_deinit_timer); - } - spin_unlock_irqrestore(&local->lock, flags); - -} - - static void hostap_passive_scan(unsigned long data) { local_info_t *local = (local_info_t *) data; struct net_device *dev = local->dev; - u16 channel; + u16 chan; if (local->passive_scan_interval <= 0) return; @@ -2872,11 +2831,11 @@ static void hostap_passive_scan(unsigned long data) printk(KERN_DEBUG "%s: passive scan channel %d\n", dev->name, local->passive_scan_channel); - channel = local->passive_scan_channel; + chan = local->passive_scan_channel; local->passive_scan_state = PASSIVE_SCAN_WAIT; local->passive_scan_timer.expires = jiffies + HZ / 10; } else { - channel = local->channel; + chan = local->channel; local->passive_scan_state = PASSIVE_SCAN_LISTEN; local->passive_scan_timer.expires = jiffies + local->passive_scan_interval * HZ; @@ -2884,9 +2843,9 @@ static void hostap_passive_scan(unsigned long data) if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_TEST | (HFA384X_TEST_CHANGE_CHANNEL << 8), - channel, NULL, 0)) + chan, NULL, 0)) printk(KERN_ERR "%s: passive scan channel set %d " - "failed\n", dev->name, channel); + "failed\n", dev->name, chan); add_timer(&local->passive_scan_timer); } @@ -2935,19 +2894,12 @@ static void hostap_tick_timer(unsigned long data) #ifndef PRISM2_NO_PROCFS_DEBUG -static int prism2_registers_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_registers_proc_show(struct seq_file *m, void *v) { - char *p = page; - local_info_t *local = (local_info_t *) data; - - if (off != 0) { - *eof = 1; - return 0; - } + local_info_t *local = m->private; #define SHOW_REG(n) \ -p += sprintf(p, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) + seq_printf(m, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) SHOW_REG(CMD); SHOW_REG(PARAM0); @@ -2993,8 +2945,21 @@ p += sprintf(p, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) SHOW_REG(PCI_M1_CTL); #endif /* PRISM2_PCI */ - return (p - page); + return 0; } + +static int prism2_registers_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, prism2_registers_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations prism2_registers_proc_fops = { + .open = prism2_registers_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -3015,11 +2980,9 @@ static int prism2_set_tim(struct net_device *dev, int aid, int set) local = iface->local; new_entry = kzalloc(sizeof(*new_entry), GFP_ATOMIC); - if (new_entry == NULL) { - printk(KERN_DEBUG "%s: prism2_set_tim: kmalloc failed\n", - local->dev->name); + if (new_entry == NULL) return -ENOMEM; - } + new_entry->aid = aid; new_entry->set = set; @@ -3101,7 +3064,22 @@ static void prism2_clear_set_tim_queue(local_info_t *local) * This is a natural nesting, which needs a split lock type. */ static struct lock_class_key hostap_netdev_xmit_lock_key; +static struct lock_class_key hostap_netdev_addr_lock_key; +static void prism2_set_lockdep_class_one(struct net_device *dev, + struct netdev_queue *txq, + void *_unused) +{ + lockdep_set_class(&txq->_xmit_lock, + &hostap_netdev_xmit_lock_key); +} + +static void prism2_set_lockdep_class(struct net_device *dev) +{ + lockdep_set_class(&dev->addr_list_lock, + &hostap_netdev_addr_lock_key); + netdev_for_each_tx_queue(dev, prism2_set_lockdep_class_one, NULL); +} static struct net_device * prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, @@ -3156,7 +3134,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, local->func->reset_port = prism2_reset_port; local->func->schedule_reset = prism2_schedule_reset; #ifdef PRISM2_DOWNLOAD_SUPPORT - local->func->read_aux = prism2_download_aux_dump; + local->func->read_aux_fops = &prism2_download_aux_dump_proc_fops; local->func->download = prism2_download; #endif /* PRISM2_DOWNLOAD_SUPPORT */ local->func->tx = prism2_tx_80211; @@ -3172,6 +3150,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, spin_lock_init(&local->cmdlock); spin_lock_init(&local->baplock); spin_lock_init(&local->lock); + spin_lock_init(&local->irq_init_lock); mutex_init(&local->rid_bap_mtx); if (card_idx < 0 || card_idx >= MAX_PARM_DEVICES) @@ -3204,6 +3183,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, local->auth_algs = PRISM2_AUTH_OPEN | PRISM2_AUTH_SHARED_KEY; local->sram_type = -1; local->scan_channel_mask = 0xffff; + local->monitor_type = PRISM2_MONITOR_RADIOTAP; /* Initialize task queue structures */ INIT_WORK(&local->reset_queue, handle_reset_queue); @@ -3238,10 +3218,8 @@ while (0) INIT_LIST_HEAD(&local->cmd_queue); init_waitqueue_head(&local->hostscan_wq); - INIT_LIST_HEAD(&local->crypt_deinit_list); - init_timer(&local->crypt_deinit_timer); - local->crypt_deinit_timer.data = (unsigned long) local; - local->crypt_deinit_timer.function = prism2_crypt_deinit_handler; + + lib80211_crypt_info_init(&local->crypt_info, dev->name, &local->lock); init_timer(&local->passive_scan_timer); local->passive_scan_timer.data = (unsigned long) local; @@ -3257,7 +3235,6 @@ while (0) hostap_setup_dev(dev, local, HOSTAP_INTERFACE_MASTER); - dev->hard_start_xmit = hostap_master_start_xmit; dev->type = ARPHRD_IEEE80211; dev->header_ops = &hostap_80211_ops; @@ -3267,7 +3244,7 @@ while (0) if (ret >= 0) ret = register_netdevice(dev); - lockdep_set_class(&dev->_xmit_lock, &hostap_netdev_xmit_lock_key); + prism2_set_lockdep_class(dev); rtnl_unlock(); if (ret < 0) { printk(KERN_WARNING "%s: register netdevice failed!\n", @@ -3276,11 +3253,6 @@ while (0) } printk(KERN_INFO "%s: Registered netdevice %s\n", dev_info, dev->name); -#ifndef PRISM2_NO_PROCFS_DEBUG - create_proc_read_entry("registers", 0, local->proc, - prism2_registers_proc_read, local); -#endif /* PRISM2_NO_PROCFS_DEBUG */ - hostap_init_data(local); return dev; @@ -3307,6 +3279,10 @@ static int hostap_hw_ready(struct net_device *dev) netif_carrier_off(local->ddev); } hostap_init_proc(local); +#ifndef PRISM2_NO_PROCFS_DEBUG + proc_create_data("registers", 0, local->proc, + &prism2_registers_proc_fops, local); +#endif /* PRISM2_NO_PROCFS_DEBUG */ hostap_init_ap_proc(local); return 0; } @@ -3341,11 +3317,15 @@ static void prism2_free_local_data(struct net_device *dev) unregister_netdev(local->dev); - flush_scheduled_work(); + flush_work(&local->reset_queue); + flush_work(&local->set_multicast_list_queue); + flush_work(&local->set_tim_queue); +#ifndef PRISM2_NO_STATION_MODES + flush_work(&local->info_queue); +#endif + flush_work(&local->comms_qual_update); - if (timer_pending(&local->crypt_deinit_timer)) - del_timer(&local->crypt_deinit_timer); - prism2_crypt_deinit_entries(local, 1); + lib80211_crypt_info_free(&local->crypt_info); if (timer_pending(&local->passive_scan_timer)) del_timer(&local->passive_scan_timer); @@ -3362,16 +3342,6 @@ static void prism2_free_local_data(struct net_device *dev) if (local->dev_enabled) prism2_callback(local, PRISM2_CALLBACK_DISABLE); - for (i = 0; i < WEP_KEYS; i++) { - struct ieee80211_crypt_data *crypt = local->crypt[i]; - if (crypt) { - if (crypt->ops) - crypt->ops->deinit(crypt->priv); - kfree(crypt); - local->crypt[i] = NULL; - } - } - if (local->ap != NULL) hostap_free_data(local->ap); @@ -3417,7 +3387,7 @@ static void prism2_free_local_data(struct net_device *dev) } -#ifndef PRISM2_PLX +#if (defined(PRISM2_PCI) && defined(CONFIG_PM)) || defined(PRISM2_PCCARD) static void prism2_suspend(struct net_device *dev) { struct hostap_interface *iface; @@ -3436,7 +3406,7 @@ static void prism2_suspend(struct net_device *dev) /* Disable hardware and firmware */ prism2_hw_shutdown(dev, 0); } -#endif /* PRISM2_PLX */ +#endif /* (PRISM2_PCI && CONFIG_PM) || PRISM2_PCCARD */ /* These might at some point be compiled separately and used as separate |
