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-rw-r--r--drivers/net/wireless/hostap/hostap_common.h4
-rw-r--r--drivers/net/wireless/hostap/hostap_config.h31
-rw-r--r--drivers/net/wireless/hostap/hostap_hw.c211
-rw-r--r--drivers/net/wireless/hostap/hostap_ioctl.c24
-rw-r--r--drivers/net/wireless/hostap/hostap_pci.c4
-rw-r--r--drivers/net/wireless/hostap/hostap_wlan.h12
6 files changed, 13 insertions, 273 deletions
diff --git a/drivers/net/wireless/hostap/hostap_common.h b/drivers/net/wireless/hostap/hostap_common.h
index 3b79d9e..3f86263 100644
--- a/drivers/net/wireless/hostap/hostap_common.h
+++ b/drivers/net/wireless/hostap/hostap_common.h
@@ -343,8 +343,8 @@ enum {
PRISM2_PARAM_MONITOR_ALLOW_FCSERR = 16,
PRISM2_PARAM_HOST_ENCRYPT = 17,
PRISM2_PARAM_HOST_DECRYPT = 18,
- PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19,
- PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20,
+ /* PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19, REMOVED 2005-08-14 */
+ /* PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20, REMOVED 2005-08-14 */
PRISM2_PARAM_HOST_ROAMING = 21,
PRISM2_PARAM_BCRX_STA_KEY = 22,
PRISM2_PARAM_IEEE_802_1X = 23,
diff --git a/drivers/net/wireless/hostap/hostap_config.h b/drivers/net/wireless/hostap/hostap_config.h
index 0b526fe..174068b 100644
--- a/drivers/net/wireless/hostap/hostap_config.h
+++ b/drivers/net/wireless/hostap/hostap_config.h
@@ -13,37 +13,6 @@
/* Maximum number of events handler per one interrupt */
#define PRISM2_MAX_INTERRUPT_EVENTS 20
-/* Use PCI bus master to copy data to/from BAP (only available for
- * hostap_pci.o).
- *
- * Note! This is extremely experimental. PCI bus master is not supported by
- * Intersil and it seems to have some problems at least on TX path (see below).
- * The driver code for implementing bus master support is based on guessing
- * and experimenting suitable control bits and these might not be correct.
- * This code is included because using bus master makes a huge difference in
- * host CPU load (something like 40% host CPU usage to 5-10% when sending or
- * receiving at maximum throughput).
- *
- * Note2! Station firmware version 1.3.5 and primary firmware version 1.0.7
- * have some fixes for PCI corruption and these (or newer) versions are
- * recommended especially when using bus mastering.
- *
- * NOTE: PCI bus mastering code has not been updated for long time and it is
- * not likely to compile and it will _not_ work as is. Only enable this if you
- * are prepared to first fix the implementation..
- */
-/* #define PRISM2_BUS_MASTER */
-
-#ifdef PRISM2_BUS_MASTER
-
-/* PCI bus master implementation seems to be broken in current
- * hardware/firmware versions. Enable this to use enable command to fix
- * something before starting bus master operation on TX path. This will add
- * some latency and an extra interrupt to each TX packet. */
-#define PRISM2_ENABLE_BEFORE_TX_BUS_MASTER
-
-#endif /* PRISM2_BUS_MASTER */
-
/* Include code for downloading firmware images into volatile RAM. */
#define PRISM2_DOWNLOAD_SUPPORT
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index dc31f53..30c2151 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -83,18 +83,6 @@ static int dtim_period[MAX_PARM_DEVICES] = { 1, DEF_INTS };
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: "
@@ -107,12 +95,6 @@ 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)
@@ -121,7 +103,7 @@ MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: "
#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
@@ -1827,34 +1809,6 @@ static int prism2_transmit(struct net_device *dev, int idx)
}
-#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 */
@@ -1920,53 +1874,6 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
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)
@@ -2107,50 +2014,18 @@ static void prism2_rx(local_info_t *local)
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) {
@@ -2654,36 +2529,6 @@ static void hostap_bap_tasklet(unsigned long data)
}
-#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)
{
@@ -2852,21 +2697,6 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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);
@@ -3309,13 +3139,6 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx,
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;
@@ -3376,12 +3199,6 @@ 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;
-#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);
@@ -3462,9 +3279,6 @@ while (0)
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;
}
@@ -3586,9 +3400,6 @@ static void prism2_free_local_data(struct net_device *dev)
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);
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index cfe127a..267f68b 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -2239,14 +2239,6 @@ static const struct iw_priv_args prism2_priv[] = {
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_decrypt" },
{ PRISM2_PARAM_HOST_DECRYPT,
0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_decrypt" },
- { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_rx" },
- { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX,
- 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_rx" },
- { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_tx" },
- { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX,
- 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_tx" },
#ifndef PRISM2_NO_STATION_MODES
{ PRISM2_PARAM_HOST_ROAMING,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_roaming" },
@@ -2495,14 +2487,6 @@ static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
ret = -EINVAL;
break;
- case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX:
- local->bus_master_threshold_rx = value;
- break;
-
- case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX:
- local->bus_master_threshold_tx = value;
- break;
-
#ifndef PRISM2_NO_STATION_MODES
case PRISM2_PARAM_HOST_ROAMING:
if (value < 0 || value > 2) {
@@ -2799,14 +2783,6 @@ static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
*param = local->host_decrypt;
break;
- case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX:
- *param = local->bus_master_threshold_rx;
- break;
-
- case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX:
- *param = local->bus_master_threshold_tx;
- break;
-
case PRISM2_PARAM_HOST_ROAMING:
*param = local->host_roaming;
break;
diff --git a/drivers/net/wireless/hostap/hostap_pci.c b/drivers/net/wireless/hostap/hostap_pci.c
index 786c146..79074b3 100644
--- a/drivers/net/wireless/hostap/hostap_pci.c
+++ b/drivers/net/wireless/hostap/hostap_pci.c
@@ -305,10 +305,6 @@ static int prism2_pci_probe(struct pci_dev *pdev,
goto fail;
}
-#ifdef PRISM2_BUS_MASTER
- pci_set_master(pdev);
-#endif /* PRISM2_BUS_MASTER */
-
dev = prism2_init_local_data(&prism2_pci_funcs, cards_found,
&pdev->dev);
if (dev == NULL)
diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h
index 6f5bea8..56416b4 100644
--- a/drivers/net/wireless/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/hostap/hostap_wlan.h
@@ -787,10 +787,6 @@ struct local_info {
struct prism2_helper_functions *func;
- int bus_master_threshold_tx;
- int bus_master_threshold_rx;
- u8 *bus_m1_buf;
-
u8 *pda;
int fw_ap;
#define PRISM2_FW_VER(major, minor, variant) \
@@ -897,14 +893,6 @@ struct local_info {
#ifdef PRISM2_PCI
void __iomem *mem_start;
-#ifdef PRISM2_BUS_MASTER
- /* bus master for BAP0 (TX) */
- int bus_m0_tx_idx;
- u8 *bus_m0_buf;
-
- /* bus master for BAP1 (RX) */
- struct sk_buff *rx_skb;
-#endif /* PRISM2_BUS_MASTER */
#endif /* PRISM2_PCI */
/* NOTE! Do not add common entries here after hardware version
generated by cgit v1.1 at 2024-08-27 19:07:26 +0000