Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from Davic Miller:

 1) Support busy polling generically, for all NAPI drivers.  From Eric
    Dumazet.

 2) Add byte/packet counter support to nft_ct, from Floriani Westphal.

 3) Add RSS/XPS support to mvneta driver, from Gregory Clement.

 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes
    Frederic Sowa.

 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai.

 6) Add support for VLAN device bridging to mlxsw switch driver, from
    Ido Schimmel.

 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski.

 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko.

 9) Reorganize wireless drivers into per-vendor directories just like we
    do for ethernet drivers.  From Kalle Valo.

10) Provide a way for administrators "destroy" connected sockets via the
    SOCK_DESTROY socket netlink diag operation.  From Lorenzo Colitti.

11) Add support to add/remove multicast routes via netlink, from Nikolay
    Aleksandrov.

12) Make TCP keepalive settings per-namespace, from Nikolay Borisov.

13) Add forwarding and packet duplication facilities to nf_tables, from
    Pablo Neira Ayuso.

14) Dead route support in MPLS, from Roopa Prabhu.

15) TSO support for thunderx chips, from Sunil Goutham.

16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon.

17) Rationalize, consolidate, and more completely document the checksum
    offloading facilities in the networking stack.  From Tom Herbert.

18) Support aborting an ongoing scan in mac80211/cfg80211, from
    Vidyullatha Kanchanapally.

19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits)
  net: bnxt: always return values from _bnxt_get_max_rings
  net: bpf: reject invalid shifts
  phonet: properly unshare skbs in phonet_rcv()
  dwc_eth_qos: Fix dma address for multi-fragment skbs
  phy: remove an unneeded condition
  mdio: remove an unneed condition
  mdio_bus: NULL dereference on allocation error
  net: Fix typo in netdev_intersect_features
  net: freescale: mac-fec: Fix build error from phy_device API change
  net: freescale: ucc_geth: Fix build error from phy_device API change
  bonding: Prevent IPv6 link local address on enslaved devices
  IB/mlx5: Add flow steering support
  net/mlx5_core: Export flow steering API
  net/mlx5_core: Make ipv4/ipv6 location more clear
  net/mlx5_core: Enable flow steering support for the IB driver
  net/mlx5_core: Initialize namespaces only when supported by device
  net/mlx5_core: Set priority attributes
  net/mlx5_core: Connect flow tables
  net/mlx5_core: Introduce modify flow table command
  net/mlx5_core: Managing root flow table
  ...

1 files changed, 812 insertions, 0 deletions

diff --git a/drivers/net/wireless/intersil/hostap/hostap_download.c b/drivers/net/wireless/intersil/hostap/hostap_download.c
new file mode 100644
index 000000000000..705fe668b969
--- /dev/null
+++ b/drivers/net/wireless/intersil/hostap/hostap_download.c
@@ -0,0 +1,812 @@
+static int prism2_enable_aux_port(struct net_device *dev, int enable)
+{
+	u16 val, reg;
+	int i, tries;
+	unsigned long flags;
+	struct hostap_interface *iface;
+	local_info_t *local;
+
+	iface = netdev_priv(dev);
+	local = iface->local;
+
+	if (local->no_pri) {
+		if (enable) {
+			PDEBUG(DEBUG_EXTRA2, "%s: no PRI f/w - assuming Aux "
+			       "port is already enabled\n", dev->name);
+		}
+		return 0;
+	}
+
+	spin_lock_irqsave(&local->cmdlock, flags);
+
+	/* wait until busy bit is clear */
+	tries = HFA384X_CMD_BUSY_TIMEOUT;
+	while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) {
+		tries--;
+		udelay(1);
+	}
+	if (tries == 0) {
+		reg = HFA384X_INW(HFA384X_CMD_OFF);
+		spin_unlock_irqrestore(&local->cmdlock, flags);
+		printk("%s: prism2_enable_aux_port - timeout - reg=0x%04x\n",
+		       dev->name, reg);
+		return -ETIMEDOUT;
+	}
+
+	val = HFA384X_INW(HFA384X_CONTROL_OFF);
+
+	if (enable) {
+		HFA384X_OUTW(HFA384X_AUX_MAGIC0, HFA384X_PARAM0_OFF);
+		HFA384X_OUTW(HFA384X_AUX_MAGIC1, HFA384X_PARAM1_OFF);
+		HFA384X_OUTW(HFA384X_AUX_MAGIC2, HFA384X_PARAM2_OFF);
+
+		if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_DISABLED)
+			printk("prism2_enable_aux_port: was not disabled!?\n");
+		val &= ~HFA384X_AUX_PORT_MASK;
+		val |= HFA384X_AUX_PORT_ENABLE;
+	} else {
+		HFA384X_OUTW(0, HFA384X_PARAM0_OFF);
+		HFA384X_OUTW(0, HFA384X_PARAM1_OFF);
+		HFA384X_OUTW(0, HFA384X_PARAM2_OFF);
+
+		if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_ENABLED)
+			printk("prism2_enable_aux_port: was not enabled!?\n");
+		val &= ~HFA384X_AUX_PORT_MASK;
+		val |= HFA384X_AUX_PORT_DISABLE;
+	}
+	HFA384X_OUTW(val, HFA384X_CONTROL_OFF);
+
+	udelay(5);
+
+	i = 10000;
+	while (i > 0) {
+		val = HFA384X_INW(HFA384X_CONTROL_OFF);
+		val &= HFA384X_AUX_PORT_MASK;
+
+		if ((enable && val == HFA384X_AUX_PORT_ENABLED) ||
+		    (!enable && val == HFA384X_AUX_PORT_DISABLED))
+			break;
+
+		udelay(10);
+		i--;
+	}
+
+	spin_unlock_irqrestore(&local->cmdlock, flags);
+
+	if (i == 0) {
+		printk("prism2_enable_aux_port(%d) timed out\n",
+		       enable);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+
+static int hfa384x_from_aux(struct net_device *dev, unsigned int addr, int len,
+			    void *buf)
+{
+	u16 page, offset;
+	if (addr & 1 || len & 1)
+		return -1;
+
+	page = addr >> 7;
+	offset = addr & 0x7f;
+
+	HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF);
+	HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF);
+
+	udelay(5);
+
+#ifdef PRISM2_PCI
+	{
+		__le16 *pos = (__le16 *) buf;
+		while (len > 0) {
+			*pos++ = HFA384X_INW_DATA(HFA384X_AUXDATA_OFF);
+			len -= 2;
+		}
+	}
+#else /* PRISM2_PCI */
+	HFA384X_INSW(HFA384X_AUXDATA_OFF, buf, len / 2);
+#endif /* PRISM2_PCI */
+
+	return 0;
+}
+
+
+static int hfa384x_to_aux(struct net_device *dev, unsigned int addr, int len,
+			  void *buf)
+{
+	u16 page, offset;
+	if (addr & 1 || len & 1)
+		return -1;
+
+	page = addr >> 7;
+	offset = addr & 0x7f;
+
+	HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF);
+	HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF);
+
+	udelay(5);
+
+#ifdef PRISM2_PCI
+	{
+		__le16 *pos = (__le16 *) buf;
+		while (len > 0) {
+			HFA384X_OUTW_DATA(*pos++, HFA384X_AUXDATA_OFF);
+			len -= 2;
+		}
+	}
+#else /* PRISM2_PCI */
+	HFA384X_OUTSW(HFA384X_AUXDATA_OFF, buf, len / 2);
+#endif /* PRISM2_PCI */
+
+	return 0;
+}
+
+
+static int prism2_pda_ok(u8 *buf)
+{
+	__le16 *pda = (__le16 *) buf;
+	int pos;
+	u16 len, pdr;
+
+	if (buf[0] == 0xff && buf[1] == 0x00 && buf[2] == 0xff &&
+	    buf[3] == 0x00)
+		return 0;
+
+	pos = 0;
+	while (pos + 1 < PRISM2_PDA_SIZE / 2) {
+		len = le16_to_cpu(pda[pos]);
+		pdr = le16_to_cpu(pda[pos + 1]);
+		if (len == 0 || pos + len > PRISM2_PDA_SIZE / 2)
+			return 0;
+
+		if (pdr == 0x0000 && len == 2) {
+			/* PDA end found */
+			return 1;
+		}
+
+		pos += len + 1;
+	}
+
+	return 0;
+}
+
+
+#define prism2_download_aux_dump_npages 65536
+
+struct prism2_download_aux_dump {
+	local_info_t *local;
+	u16 page[0x80];
+};
+
+static int prism2_download_aux_dump_proc_show(struct seq_file *m, void *v)
+{
+	struct prism2_download_aux_dump *ctx = m->private;
+
+	hfa384x_from_aux(ctx->local->dev, (unsigned long)v - 1, 0x80, ctx->page);
+	seq_write(m, ctx->page, 0x80);
+	return 0;
+}
+
+static void *prism2_download_aux_dump_proc_start(struct seq_file *m, loff_t *_pos)
+{
+	struct prism2_download_aux_dump *ctx = m->private;
+	prism2_enable_aux_port(ctx->local->dev, 1);
+	if (*_pos >= prism2_download_aux_dump_npages)
+		return NULL;
+	return (void *)((unsigned long)*_pos + 1);
+}
+
+static void *prism2_download_aux_dump_proc_next(struct seq_file *m, void *v, loff_t *_pos)
+{
+	++*_pos;
+	if (*_pos >= prism2_download_aux_dump_npages)
+		return NULL;
+	return (void *)((unsigned long)*_pos + 1);
+}
+
+static void prism2_download_aux_dump_proc_stop(struct seq_file *m, void *v)
+{
+	struct prism2_download_aux_dump *ctx = m->private;
+	prism2_enable_aux_port(ctx->local->dev, 0);
+}
+
+static const struct seq_operations prism2_download_aux_dump_proc_seqops = {
+	.start	= prism2_download_aux_dump_proc_start,
+	.next	= prism2_download_aux_dump_proc_next,
+	.stop	= prism2_download_aux_dump_proc_stop,
+	.show	= prism2_download_aux_dump_proc_show,
+};
+
+static int prism2_download_aux_dump_proc_open(struct inode *inode, struct file *file)
+{
+	int ret = seq_open_private(file, &prism2_download_aux_dump_proc_seqops,
+				   sizeof(struct prism2_download_aux_dump));
+	if (ret == 0) {
+		struct seq_file *m = file->private_data;
+		m->private = PDE_DATA(inode);
+	}
+	return ret;
+}
+
+static const struct file_operations prism2_download_aux_dump_proc_fops = {
+	.open		= prism2_download_aux_dump_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release_private,
+};
+
+
+static u8 * prism2_read_pda(struct net_device *dev)
+{
+	u8 *buf;
+	int res, i, found = 0;
+#define NUM_PDA_ADDRS 4
+	unsigned int pda_addr[NUM_PDA_ADDRS] = {
+		0x7f0000 /* others than HFA3841 */,
+		0x3f0000 /* HFA3841 */,
+		0x390000 /* apparently used in older cards */,
+		0x7f0002 /* Intel PRO/Wireless 2011B (PCI) */,
+	};
+
+	buf = kmalloc(PRISM2_PDA_SIZE, GFP_KERNEL);
+	if (buf == NULL)
+		return NULL;
+
+	/* Note: wlan card should be in initial state (just after init cmd)
+	 * and no other operations should be performed concurrently. */
+
+	prism2_enable_aux_port(dev, 1);
+
+	for (i = 0; i < NUM_PDA_ADDRS; i++) {
+		PDEBUG(DEBUG_EXTRA2, "%s: trying to read PDA from 0x%08x",
+		       dev->name, pda_addr[i]);
+		res = hfa384x_from_aux(dev, pda_addr[i], PRISM2_PDA_SIZE, buf);
+		if (res)
+			continue;
+		if (res == 0 && prism2_pda_ok(buf)) {
+			PDEBUG2(DEBUG_EXTRA2, ": OK\n");
+			found = 1;
+			break;
+		} else {
+			PDEBUG2(DEBUG_EXTRA2, ": failed\n");
+		}
+	}
+
+	prism2_enable_aux_port(dev, 0);
+
+	if (!found) {
+		printk(KERN_DEBUG "%s: valid PDA not found\n", dev->name);
+		kfree(buf);
+		buf = NULL;
+	}
+
+	return buf;
+}
+
+
+static int prism2_download_volatile(local_info_t *local,
+				    struct prism2_download_data *param)
+{
+	struct net_device *dev = local->dev;
+	int ret = 0, i;
+	u16 param0, param1;
+
+	if (local->hw_downloading) {
+		printk(KERN_WARNING "%s: Already downloading - aborting new "
+		       "request\n", dev->name);
+		return -1;
+	}
+
+	local->hw_downloading = 1;
+	if (local->pri_only) {
+		hfa384x_disable_interrupts(dev);
+	} else {
+		prism2_hw_shutdown(dev, 0);
+
+		if (prism2_hw_init(dev, 0)) {
+			printk(KERN_WARNING "%s: Could not initialize card for"
+			       " download\n", dev->name);
+			ret = -1;
+			goto out;
+		}
+	}
+
+	if (prism2_enable_aux_port(dev, 1)) {
+		printk(KERN_WARNING "%s: Could not enable AUX port\n",
+		       dev->name);
+		ret = -1;
+		goto out;
+	}
+
+	param0 = param->start_addr & 0xffff;
+	param1 = param->start_addr >> 16;
+
+	HFA384X_OUTW(0, HFA384X_PARAM2_OFF);
+	HFA384X_OUTW(param1, HFA384X_PARAM1_OFF);
+	if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD |
+			     (HFA384X_PROGMODE_ENABLE_VOLATILE << 8),
+			     param0)) {
+		printk(KERN_WARNING "%s: Download command execution failed\n",
+		       dev->name);
+		ret = -1;
+		goto out;
+	}
+
+	for (i = 0; i < param->num_areas; i++) {
+		PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n",
+		       dev->name, param->data[i].len, param->data[i].addr);
+		if (hfa384x_to_aux(dev, param->data[i].addr,
+				   param->data[i].len, param->data[i].data)) {
+			printk(KERN_WARNING "%s: RAM download at 0x%08x "
+			       "(len=%d) failed\n", dev->name,
+			       param->data[i].addr, param->data[i].len);
+			ret = -1;
+			goto out;
+		}
+	}
+
+	HFA384X_OUTW(param1, HFA384X_PARAM1_OFF);
+	HFA384X_OUTW(0, HFA384X_PARAM2_OFF);
+	if (hfa384x_cmd_no_wait(dev, HFA384X_CMDCODE_DOWNLOAD |
+				(HFA384X_PROGMODE_DISABLE << 8), param0)) {
+		printk(KERN_WARNING "%s: Download command execution failed\n",
+		       dev->name);
+		ret = -1;
+		goto out;
+	}
+	/* ProgMode disable causes the hardware to restart itself from the
+	 * given starting address. Give hw some time and ACK command just in
+	 * case restart did not happen. */
+	mdelay(5);
+	HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
+
+	if (prism2_enable_aux_port(dev, 0)) {
+		printk(KERN_DEBUG "%s: Disabling AUX port failed\n",
+		       dev->name);
+		/* continue anyway.. restart should have taken care of this */
+	}
+
+	mdelay(5);
+	local->hw_downloading = 0;
+	if (prism2_hw_config(dev, 2)) {
+		printk(KERN_WARNING "%s: Card configuration after RAM "
+		       "download failed\n", dev->name);
+		ret = -1;
+		goto out;
+	}
+
+ out:
+	local->hw_downloading = 0;
+	return ret;
+}
+
+
+static int prism2_enable_genesis(local_info_t *local, int hcr)
+{
+	struct net_device *dev = local->dev;
+	u8 initseq[4] = { 0x00, 0xe1, 0xa1, 0xff };
+	u8 readbuf[4];
+
+	printk(KERN_DEBUG "%s: test Genesis mode with HCR 0x%02x\n",
+	       dev->name, hcr);
+	local->func->cor_sreset(local);
+	hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq);
+	local->func->genesis_reset(local, hcr);
+
+	/* Readback test */
+	hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf);
+	hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq);
+	hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf);
+
+	if (memcmp(initseq, readbuf, sizeof(initseq)) == 0) {
+		printk(KERN_DEBUG "Readback test succeeded, HCR 0x%02x\n",
+		       hcr);
+		return 0;
+	} else {
+		printk(KERN_DEBUG "Readback test failed, HCR 0x%02x "
+		       "write %02x %02x %02x %02x read %02x %02x %02x %02x\n",
+		       hcr, initseq[0], initseq[1], initseq[2], initseq[3],
+		       readbuf[0], readbuf[1], readbuf[2], readbuf[3]);
+		return 1;
+	}
+}
+
+
+static int prism2_get_ram_size(local_info_t *local)
+{
+	int ret;
+
+	/* Try to enable genesis mode; 0x1F for x8 SRAM or 0x0F for x16 SRAM */
+	if (prism2_enable_genesis(local, 0x1f) == 0)
+		ret = 8;
+	else if (prism2_enable_genesis(local, 0x0f) == 0)
+		ret = 16;
+	else
+		ret = -1;
+
+	/* Disable genesis mode */
+	local->func->genesis_reset(local, ret == 16 ? 0x07 : 0x17);
+
+	return ret;
+}
+
+
+static int prism2_download_genesis(local_info_t *local,
+				   struct prism2_download_data *param)
+{
+	struct net_device *dev = local->dev;
+	int ram16 = 0, i;
+	int ret = 0;
+
+	if (local->hw_downloading) {
+		printk(KERN_WARNING "%s: Already downloading - aborting new "
+		       "request\n", dev->name);
+		return -EBUSY;
+	}
+
+	if (!local->func->genesis_reset || !local->func->cor_sreset) {
+		printk(KERN_INFO "%s: Genesis mode downloading not supported "
+		       "with this hwmodel\n", dev->name);
+		return -EOPNOTSUPP;
+	}
+
+	local->hw_downloading = 1;
+
+	if (prism2_enable_aux_port(dev, 1)) {
+		printk(KERN_DEBUG "%s: failed to enable AUX port\n",
+		       dev->name);
+		ret = -EIO;
+		goto out;
+	}
+
+	if (local->sram_type == -1) {
+		/* 0x1F for x8 SRAM or 0x0F for x16 SRAM */
+		if (prism2_enable_genesis(local, 0x1f) == 0) {
+			ram16 = 0;
+			PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x8 "
+			       "SRAM\n", dev->name);
+		} else if (prism2_enable_genesis(local, 0x0f) == 0) {
+			ram16 = 1;
+			PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x16 "
+			       "SRAM\n", dev->name);
+		} else {
+			printk(KERN_DEBUG "%s: Could not initiate genesis "
+			       "mode\n", dev->name);
+			ret = -EIO;
+			goto out;
+		}
+	} else {
+		if (prism2_enable_genesis(local, local->sram_type == 8 ?
+					  0x1f : 0x0f)) {
+			printk(KERN_DEBUG "%s: Failed to set Genesis "
+			       "mode (sram_type=%d)\n", dev->name,
+			       local->sram_type);
+			ret = -EIO;
+			goto out;
+		}
+		ram16 = local->sram_type != 8;
+	}
+
+	for (i = 0; i < param->num_areas; i++) {
+		PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n",
+		       dev->name, param->data[i].len, param->data[i].addr);
+		if (hfa384x_to_aux(dev, param->data[i].addr,
+				   param->data[i].len, param->data[i].data)) {
+			printk(KERN_WARNING "%s: RAM download at 0x%08x "
+			       "(len=%d) failed\n", dev->name,
+			       param->data[i].addr, param->data[i].len);
+			ret = -EIO;
+			goto out;
+		}
+	}
+
+	PDEBUG(DEBUG_EXTRA2, "Disable genesis mode\n");
+	local->func->genesis_reset(local, ram16 ? 0x07 : 0x17);
+	if (prism2_enable_aux_port(dev, 0)) {
+		printk(KERN_DEBUG "%s: Failed to disable AUX port\n",
+		       dev->name);
+	}
+
+	mdelay(5);
+	local->hw_downloading = 0;
+
+	PDEBUG(DEBUG_EXTRA2, "Trying to initialize card\n");
+	/*
+	 * Make sure the INIT command does not generate a command completion
+	 * event by disabling interrupts.
+	 */
+	hfa384x_disable_interrupts(dev);
+	if (prism2_hw_init(dev, 1)) {
+		printk(KERN_DEBUG "%s: Initialization after genesis mode "
+		       "download failed\n", dev->name);
+		ret = -EIO;
+		goto out;
+	}
+
+	PDEBUG(DEBUG_EXTRA2, "Card initialized - running PRI only\n");
+	if (prism2_hw_init2(dev, 1)) {
+		printk(KERN_DEBUG "%s: Initialization(2) after genesis mode "
+		       "download failed\n", dev->name);
+		ret = -EIO;
+		goto out;
+	}
+
+ out:
+	local->hw_downloading = 0;
+	return ret;
+}
+
+
+#ifdef PRISM2_NON_VOLATILE_DOWNLOAD
+/* Note! Non-volatile downloading functionality has not yet been tested
+ * thoroughly and it may corrupt flash image and effectively kill the card that
+ * is being updated. You have been warned. */
+
+static inline int prism2_download_block(struct net_device *dev,
+					u32 addr, u8 *data,
+					u32 bufaddr, int rest_len)
+{
+	u16 param0, param1;
+	int block_len;
+
+	block_len = rest_len < 4096 ? rest_len : 4096;
+
+	param0 = addr & 0xffff;
+	param1 = addr >> 16;
+
+	HFA384X_OUTW(block_len, HFA384X_PARAM2_OFF);
+	HFA384X_OUTW(param1, HFA384X_PARAM1_OFF);
+
+	if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD |
+			     (HFA384X_PROGMODE_ENABLE_NON_VOLATILE << 8),
+			     param0)) {
+		printk(KERN_WARNING "%s: Flash download command execution "
+		       "failed\n", dev->name);
+		return -1;
+	}
+
+	if (hfa384x_to_aux(dev, bufaddr, block_len, data)) {
+		printk(KERN_WARNING "%s: flash download at 0x%08x "
+		       "(len=%d) failed\n", dev->name, addr, block_len);
+		return -1;
+	}
+
+	HFA384X_OUTW(0, HFA384X_PARAM2_OFF);
+	HFA384X_OUTW(0, HFA384X_PARAM1_OFF);
+	if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD |
+			     (HFA384X_PROGMODE_PROGRAM_NON_VOLATILE << 8),
+			     0)) {
+		printk(KERN_WARNING "%s: Flash write command execution "
+		       "failed\n", dev->name);
+		return -1;
+	}
+
+	return block_len;
+}
+
+
+static int prism2_download_nonvolatile(local_info_t *local,
+				       struct prism2_download_data *dl)
+{
+	struct net_device *dev = local->dev;
+	int ret = 0, i;
+	struct {
+		__le16 page;
+		__le16 offset;
+		__le16 len;
+	} dlbuffer;
+	u32 bufaddr;
+
+	if (local->hw_downloading) {
+		printk(KERN_WARNING "%s: Already downloading - aborting new "
+		       "request\n", dev->name);
+		return -1;
+	}
+
+	ret = local->func->get_rid(dev, HFA384X_RID_DOWNLOADBUFFER,
+				   &dlbuffer, 6, 0);
+
+	if (ret < 0) {
+		printk(KERN_WARNING "%s: Could not read download buffer "
+		       "parameters\n", dev->name);
+		goto out;
+	}
+
+	printk(KERN_DEBUG "Download buffer: %d bytes at 0x%04x:0x%04x\n",
+	       le16_to_cpu(dlbuffer.len),
+	       le16_to_cpu(dlbuffer.page),
+	       le16_to_cpu(dlbuffer.offset));
+
+	bufaddr = (le16_to_cpu(dlbuffer.page) << 7) + le16_to_cpu(dlbuffer.offset);
+
+	local->hw_downloading = 1;
+
+	if (!local->pri_only) {
+		prism2_hw_shutdown(dev, 0);
+
+		if (prism2_hw_init(dev, 0)) {
+			printk(KERN_WARNING "%s: Could not initialize card for"
+			       " download\n", dev->name);
+			ret = -1;
+			goto out;
+		}
+	}
+
+	hfa384x_disable_interrupts(dev);
+
+	if (prism2_enable_aux_port(dev, 1)) {
+		printk(KERN_WARNING "%s: Could not enable AUX port\n",
+		       dev->name);
+		ret = -1;
+		goto out;
+	}
+
+	printk(KERN_DEBUG "%s: starting flash download\n", dev->name);
+	for (i = 0; i < dl->num_areas; i++) {
+		int rest_len = dl->data[i].len;
+		int data_off = 0;
+
+		while (rest_len > 0) {
+			int block_len;
+
+			block_len = prism2_download_block(
+				dev, dl->data[i].addr + data_off,
+				dl->data[i].data + data_off, bufaddr,
+				rest_len);
+
+			if (block_len < 0) {
+				ret = -1;
+				goto out;
+			}
+
+			rest_len -= block_len;
+			data_off += block_len;
+		}
+	}
+
+	HFA384X_OUTW(0, HFA384X_PARAM1_OFF);
+	HFA384X_OUTW(0, HFA384X_PARAM2_OFF);
+	if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD |
+				(HFA384X_PROGMODE_DISABLE << 8), 0)) {
+		printk(KERN_WARNING "%s: Download command execution failed\n",
+		       dev->name);
+		ret = -1;
+		goto out;
+	}
+
+	if (prism2_enable_aux_port(dev, 0)) {
+		printk(KERN_DEBUG "%s: Disabling AUX port failed\n",
+		       dev->name);
+		/* continue anyway.. restart should have taken care of this */
+	}
+
+	mdelay(5);
+
+	local->func->hw_reset(dev);
+	local->hw_downloading = 0;
+	if (prism2_hw_config(dev, 2)) {
+		printk(KERN_WARNING "%s: Card configuration after flash "
+		       "download failed\n", dev->name);
+		ret = -1;
+	} else {
+		printk(KERN_INFO "%s: Card initialized successfully after "
+		       "flash download\n", dev->name);
+	}
+
+ out:
+	local->hw_downloading = 0;
+	return ret;
+}
+#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */
+
+
+static void prism2_download_free_data(struct prism2_download_data *dl)
+{
+	int i;
+
+	if (dl == NULL)
+		return;
+
+	for (i = 0; i < dl->num_areas; i++)
+		kfree(dl->data[i].data);
+	kfree(dl);
+}
+
+
+static int prism2_download(local_info_t *local,
+			   struct prism2_download_param *param)
+{
+	int ret = 0;
+	int i;
+	u32 total_len = 0;
+	struct prism2_download_data *dl = NULL;
+
+	printk(KERN_DEBUG "prism2_download: dl_cmd=%d start_addr=0x%08x "
+	       "num_areas=%d\n",
+	       param->dl_cmd, param->start_addr, param->num_areas);
+
+	if (param->num_areas > 100) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	dl = kzalloc(sizeof(*dl) + param->num_areas *
+		     sizeof(struct prism2_download_data_area), GFP_KERNEL);
+	if (dl == NULL) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	dl->dl_cmd = param->dl_cmd;
+	dl->start_addr = param->start_addr;
+	dl->num_areas = param->num_areas;
+	for (i = 0; i < param->num_areas; i++) {
+		PDEBUG(DEBUG_EXTRA2,
+		       "  area %d: addr=0x%08x len=%d ptr=0x%p\n",
+		       i, param->data[i].addr, param->data[i].len,
+		       param->data[i].ptr);
+
+		dl->data[i].addr = param->data[i].addr;
+		dl->data[i].len = param->data[i].len;
+
+		total_len += param->data[i].len;
+		if (param->data[i].len > PRISM2_MAX_DOWNLOAD_AREA_LEN ||
+		    total_len > PRISM2_MAX_DOWNLOAD_LEN) {
+			ret = -E2BIG;
+			goto out;
+		}
+
+		dl->data[i].data = kmalloc(dl->data[i].len, GFP_KERNEL);
+		if (dl->data[i].data == NULL) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
+		if (copy_from_user(dl->data[i].data, param->data[i].ptr,
+				   param->data[i].len)) {
+			ret = -EFAULT;
+			goto out;
+		}
+	}
+
+	switch (param->dl_cmd) {
+	case PRISM2_DOWNLOAD_VOLATILE:
+	case PRISM2_DOWNLOAD_VOLATILE_PERSISTENT:
+		ret = prism2_download_volatile(local, dl);
+		break;
+	case PRISM2_DOWNLOAD_VOLATILE_GENESIS:
+	case PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT:
+		ret = prism2_download_genesis(local, dl);
+		break;
+	case PRISM2_DOWNLOAD_NON_VOLATILE:
+#ifdef PRISM2_NON_VOLATILE_DOWNLOAD
+		ret = prism2_download_nonvolatile(local, dl);
+#else /* PRISM2_NON_VOLATILE_DOWNLOAD */
+		printk(KERN_INFO "%s: non-volatile downloading not enabled\n",
+		       local->dev->name);
+		ret = -EOPNOTSUPP;
+#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */
+		break;
+	default:
+		printk(KERN_DEBUG "%s: unsupported download command %d\n",
+		       local->dev->name, param->dl_cmd);
+		ret = -EINVAL;
+		break;
+	}
+
+ out:
+	if (ret == 0 && dl &&
+	    param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT) {
+		prism2_download_free_data(local->dl_pri);
+		local->dl_pri = dl;
+	} else if (ret == 0 && dl &&
+		   param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_PERSISTENT) {
+		prism2_download_free_data(local->dl_sec);
+		local->dl_sec = dl;
+	} else
+		prism2_download_free_data(dl);
+
+	return ret;
+}