module_param_array(dtim_period, int, NULL, 0444);
MODULE_PARM_DESC(dtim_period, "DTIM period");
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
-static int bus_master_threshold_rx[MAX_PARM_DEVICES] = { 100, DEF_INTS };
-module_param_array(bus_master_threshold_rx, int, NULL, 0444);
-MODULE_PARM_DESC(bus_master_threshold_rx, "Packet length threshold for using "
- "PCI bus master on RX");
-
-static int bus_master_threshold_tx[MAX_PARM_DEVICES] = { 100, DEF_INTS };
-module_param_array(bus_master_threshold_tx, int, NULL, 0444);
-MODULE_PARM_DESC(bus_master_threshold_tx, "Packet length threshold for using "
- "PCI bus master on TX");
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
static char dev_template[16] = "wlan%d";
module_param_string(dev_template, dev_template, sizeof(dev_template), 0444);
MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: "
#define EXTRA_EVENTS_WTERR HFA384X_EV_WTERR
#endif
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
-#define EXTRA_EVENTS_BUS_MASTER (HFA384X_EV_PCI_M0 | HFA384X_EV_PCI_M1)
-#else
-#define EXTRA_EVENTS_BUS_MASTER 0
-#endif
-
/* Events that will be using BAP0 */
#define HFA384X_BAP0_EVENTS \
(HFA384X_EV_TXEXC | HFA384X_EV_RX | HFA384X_EV_INFO | HFA384X_EV_TX)
#define HFA384X_EVENT_MASK \
(HFA384X_BAP0_EVENTS | HFA384X_EV_ALLOC | HFA384X_EV_INFDROP | \
HFA384X_EV_CMD | HFA384X_EV_TICK | \
- EXTRA_EVENTS_WTERR | EXTRA_EVENTS_BUS_MASTER)
+ EXTRA_EVENTS_WTERR)
/* Default TX control flags: use 802.11 headers and request interrupt for
* failed transmits. Frames that request ACK callback, will add
}
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
-/* Called only from hardware IRQ */
-static void prism2_tx_cb(struct net_device *dev, void *context,
- u16 resp0, u16 res)
-{
- struct hostap_interface *iface;
- local_info_t *local;
- unsigned long addr;
- int buf_len = (int) context;
-
- iface = netdev_priv(dev);
- local = iface->local;
-
- if (res) {
- printk(KERN_DEBUG "%s: prism2_tx_cb - res=0x%02x\n",
- dev->name, res);
- return;
- }
-
- addr = virt_to_phys(local->bus_m0_buf);
- HFA384X_OUTW((addr & 0xffff0000) >> 16, HFA384X_PCI_M0_ADDRH_OFF);
- HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF);
- HFA384X_OUTW(buf_len / 2, HFA384X_PCI_M0_LEN_OFF);
- HFA384X_OUTW(HFA384X_PCI_CTL_TO_BAP, HFA384X_PCI_M0_CTL_OFF);
-}
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
-
/* Send IEEE 802.11 frame (convert the header into Prism2 TX descriptor and
* send the payload with this descriptor) */
/* Called only from software IRQ */
spin_lock(&local->baplock);
res = hfa384x_setup_bap(dev, BAP0, local->txfid[idx], 0);
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- if (!res && skb->len >= local->bus_master_threshold_tx) {
- u8 *pos;
- int buf_len;
-
- local->bus_m0_tx_idx = idx;
-
- /* FIX: BAP0 should be locked during bus master transfer, but
- * baplock with BH's disabled is not OK for this; netif queue
- * stopping is not enough since BAP0 is used also for RID
- * read/write */
-
- /* stop the queue for the time that bus mastering on BAP0 is
- * in use */
- netif_stop_queue(dev);
-
- spin_unlock(&local->baplock);
-
- /* Copy frame data to bus_m0_buf */
- pos = local->bus_m0_buf;
- memcpy(pos, &txdesc, sizeof(txdesc));
- pos += sizeof(txdesc);
- memcpy(pos, skb->data + hdr_len, skb->len - hdr_len);
- pos += skb->len - hdr_len;
- buf_len = pos - local->bus_m0_buf;
- if (buf_len & 1)
- buf_len++;
-
-#ifdef PRISM2_ENABLE_BEFORE_TX_BUS_MASTER
- /* Any RX packet seems to break something with TX bus
- * mastering; enable command is enough to fix this.. */
- if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_ENABLE, 0,
- prism2_tx_cb, (long) buf_len)) {
- printk(KERN_DEBUG "%s: TX: enable port0 failed\n",
- dev->name);
- }
-#else /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */
- prism2_tx_cb(dev, (void *) buf_len, 0, 0);
-#endif /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */
-
- /* Bus master transfer will be started from command completion
- * event handler and TX handling will be finished by calling
- * prism2_transmit() from bus master event handler */
- goto tx_stats;
- }
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
if (!res)
res = hfa384x_to_bap(dev, BAP0, &txdesc, sizeof(txdesc));
if (!res)
skb->dev = dev;
memcpy(skb_put(skb, hdr_len), &rxdesc, hdr_len);
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- if (len >= local->bus_master_threshold_rx) {
- unsigned long addr;
-
- hfa384x_events_no_bap1(dev);
-
- local->rx_skb = skb;
- /* Internal BAP0 offset points to the byte following rxdesc;
- * copy rest of the data using bus master */
- addr = virt_to_phys(skb_put(skb, len));
- HFA384X_OUTW((addr & 0xffff0000) >> 16,
- HFA384X_PCI_M0_ADDRH_OFF);
- HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF);
- if (len & 1)
- len++;
- HFA384X_OUTW(len / 2, HFA384X_PCI_M0_LEN_OFF);
- HFA384X_OUTW(HFA384X_PCI_CTL_FROM_BAP, HFA384X_PCI_M0_CTL_OFF);
-
- /* pci_bus_m1 event will be generated when data transfer is
- * complete and the frame will then be added to rx_list and
- * rx_tasklet is scheduled */
- rx_pending = 1;
-
- /* Have to release baplock before returning, although BAP0
- * should really not be used before DMA transfer has been
- * completed. */
- spin_unlock(&local->baplock);
- } else
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
- {
- if (len > 0)
- res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len),
- len);
- spin_unlock(&local->baplock);
- if (res) {
- printk(KERN_DEBUG "%s: RX failed to read "
- "frame data\n", dev->name);
- goto rx_dropped;
- }
-
- skb_queue_tail(&local->rx_list, skb);
- tasklet_schedule(&local->rx_tasklet);
+ if (len > 0)
+ res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len), len);
+ spin_unlock(&local->baplock);
+ if (res) {
+ printk(KERN_DEBUG "%s: RX failed to read "
+ "frame data\n", dev->name);
+ goto rx_dropped;
}
+ skb_queue_tail(&local->rx_list, skb);
+ tasklet_schedule(&local->rx_tasklet);
+
rx_exit:
prism2_callback(local, PRISM2_CALLBACK_RX_END);
if (!rx_pending) {
}
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
-/* Called only from hardware IRQ */
-static void prism2_bus_master_ev(struct net_device *dev, int bap)
-{
- struct hostap_interface *iface;
- local_info_t *local;
-
- iface = netdev_priv(dev);
- local = iface->local;
-
- if (bap == BAP1) {
- /* FIX: frame payload was DMA'd to skb->data; might need to
- * invalidate data cache for that memory area */
- skb_queue_tail(&local->rx_list, local->rx_skb);
- tasklet_schedule(&local->rx_tasklet);
- HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF);
- } else {
- if (prism2_transmit(dev, local->bus_m0_tx_idx)) {
- printk(KERN_DEBUG "%s: prism2_transmit() failed "
- "when called from bus master event\n",
- dev->name);
- local->intransmitfid[local->bus_m0_tx_idx] =
- PRISM2_TXFID_EMPTY;
- schedule_work(&local->reset_queue);
- }
- }
-}
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
-
/* Called only from hardware IRQ */
static void prism2_infdrop(struct net_device *dev)
{
HFA384X_OUTW(HFA384X_EV_TICK, HFA384X_EVACK_OFF);
}
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- if (ev & HFA384X_EV_PCI_M0) {
- prism2_bus_master_ev(dev, BAP0);
- HFA384X_OUTW(HFA384X_EV_PCI_M0, HFA384X_EVACK_OFF);
- }
-
- if (ev & HFA384X_EV_PCI_M1) {
- /* previous RX has been copied can be ACKed now */
- HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF);
-
- prism2_bus_master_ev(dev, BAP1);
- HFA384X_OUTW(HFA384X_EV_PCI_M1, HFA384X_EVACK_OFF);
- }
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
if (ev & HFA384X_EV_ALLOC) {
prism2_alloc_ev(dev);
HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF);
local->io_debug_enabled = 1;
#endif /* PRISM2_IO_DEBUG */
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- local->bus_m0_buf = (u8 *) kmalloc(sizeof(struct hfa384x_tx_frame) +
- PRISM2_DATA_MAXLEN, GFP_DMA);
- if (local->bus_m0_buf == NULL)
- goto fail;
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
-
local->func = funcs;
local->func->cmd = hfa384x_cmd;
local->func->read_regs = hfa384x_read_regs;
local->auth_algs = PRISM2_AUTH_OPEN | PRISM2_AUTH_SHARED_KEY;
local->sram_type = -1;
local->scan_channel_mask = 0xffff;
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- local->bus_master_threshold_rx = GET_INT_PARM(bus_master_threshold_rx,
- card_idx);
- local->bus_master_threshold_tx = GET_INT_PARM(bus_master_threshold_tx,
- card_idx);
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
/* Initialize task queue structures */
INIT_WORK(&local->reset_queue, handle_reset_queue, local);
return dev;
fail:
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- kfree(local->bus_m0_buf);
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
free_netdev(dev);
return NULL;
}
kfree(bss);
}
-#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER)
- kfree(local->bus_m0_buf);
-#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */
kfree(local->pda);
kfree(local->last_scan_results);
kfree(local->generic_elem);
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