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

Pull networking changes from David S Miller:

 1) Remove the ipv4 routing cache.  Now lookups go directly into the FIB
    trie and use prebuilt routes cached there.

    No more garbage collection, no more rDOS attacks on the routing
    cache.  Instead we now get predictable and consistent performance,
    no matter what the pattern of traffic we service.

    This has been almost 2 years in the making.  Special thanks to
    Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who
    have helped along the way.

    I'm sure that with a change of this magnitude there will be some
    kind of fallout, but such things ought the be simple to fix at this
    point.  Luckily I'm not European so I'll be around all of August to
    fix things :-)

    The major stages of this work here are each fronted by a forced
    merge commit whose commit message contains a top-level description
    of the motivations and implementation issues.

 2) Pre-demux of established ipv4 TCP sockets, saves a route demux on
    input.

 3) TCP SYN/ACK performance tweaks from Eric Dumazet.

 4) Add namespace support for netfilter L4 conntrack helpers, from Gao
    Feng.

 5) Add config mechanism for Energy Efficient Ethernet to ethtool, from
    Yuval Mintz.

 6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet.

 7) Support for connection tracker helpers in userspace, from Pablo
    Neira Ayuso.

 8) Allow userspace driven TX load balancing functions in TEAM driver,
    from Jiri Pirko.

 9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with
    embedded gotos.

10) TCP Small Queues, essentially minimize the amount of TCP data queued
    up in the packet scheduler layer.  Whereas the existing BQL (Byte
    Queue Limits) limits the pkt_sched --> netdevice queuing levels,
    this controls the TCP --> pkt_sched queueing levels.

    From Eric Dumazet.

11) Reduce the number of get_page/put_page ops done on SKB fragments,
    from Alexander Duyck.

12) Implement protection against blind resets in TCP (RFC 5961), from
    Eric Dumazet.

13) Support the client side of TCP Fast Open, basically the ability to
    send data in the SYN exchange, from Yuchung Cheng.

    Basically, the sender queues up data with a sendmsg() call using
    MSG_FASTOPEN, then they do the connect() which emits the queued up
    fastopen data.

14) Avoid all the problems we get into in TCP when timers or PMTU events
    hit a locked socket.  The TCP Small Queues changes added a
    tcp_release_cb() that allows us to queue work up to the
    release_sock() caller, and that's what we use here too.  From Eric
    Dumazet.

15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits)
  genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP
  r8169: revert "add byte queue limit support".
  ipv4: Change rt->rt_iif encoding.
  net: Make skb->skb_iif always track skb->dev
  ipv4: Prepare for change of rt->rt_iif encoding.
  ipv4: Remove all RTCF_DIRECTSRC handliing.
  ipv4: Really ignore ICMP address requests/replies.
  decnet: Don't set RTCF_DIRECTSRC.
  net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse.
  ipv4: Remove redundant assignment
  rds: set correct msg_namelen
  openvswitch: potential NULL deref in sample()
  tcp: dont drop MTU reduction indications
  bnx2x: Add new 57840 device IDs
  tcp: avoid oops in tcp_metrics and reset tcpm_stamp
  niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value
  niu: Fix to check for dma mapping errors.
  net: Fix references to out-of-scope variables in put_cmsg_compat()
  net: ethernet: davinci_emac: add pm_runtime support
  net: ethernet: davinci_emac: Remove unnecessary #include
  ...

1 files changed, 557 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
new file mode 100644
index 00000000000..6d8d6dd7943
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -0,0 +1,557 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include "iwl-io.h"
+#include "iwl-agn-hw.h"
+#include "iwl-trans.h"
+#include "iwl-fh.h"
+#include "iwl-op-mode.h"
+
+#include "dev.h"
+#include "agn.h"
+#include "calib.h"
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static inline const struct fw_img *
+iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
+{
+	if (ucode_type >= IWL_UCODE_TYPE_MAX)
+		return NULL;
+
+	return &priv->fw->img[ucode_type];
+}
+
+/*
+ *  Calibration
+ */
+static int iwl_set_Xtal_calib(struct iwl_priv *priv)
+{
+	struct iwl_calib_xtal_freq_cmd cmd;
+	__le16 *xtal_calib = priv->eeprom_data->xtal_calib;
+
+	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
+	cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
+	cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
+	return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
+}
+
+static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
+{
+	struct iwl_calib_temperature_offset_cmd cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
+	cmd.radio_sensor_offset = priv->eeprom_data->raw_temperature;
+	if (!(cmd.radio_sensor_offset))
+		cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
+
+	IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
+			le16_to_cpu(cmd.radio_sensor_offset));
+	return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
+}
+
+static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
+{
+	struct iwl_calib_temperature_offset_v2_cmd cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
+	cmd.radio_sensor_offset_high = priv->eeprom_data->kelvin_temperature;
+	cmd.radio_sensor_offset_low = priv->eeprom_data->raw_temperature;
+	if (!cmd.radio_sensor_offset_low) {
+		IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
+		cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
+		cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
+	}
+	cmd.burntVoltageRef = priv->eeprom_data->calib_voltage;
+
+	IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
+			le16_to_cpu(cmd.radio_sensor_offset_high));
+	IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
+			le16_to_cpu(cmd.radio_sensor_offset_low));
+	IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
+			le16_to_cpu(cmd.burntVoltageRef));
+
+	return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
+}
+
+static int iwl_send_calib_cfg(struct iwl_priv *priv)
+{
+	struct iwl_calib_cfg_cmd calib_cfg_cmd;
+	struct iwl_host_cmd cmd = {
+		.id = CALIBRATION_CFG_CMD,
+		.len = { sizeof(struct iwl_calib_cfg_cmd), },
+		.data = { &calib_cfg_cmd, },
+	};
+
+	memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
+	calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
+	calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
+	calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
+	calib_cfg_cmd.ucd_calib_cfg.flags =
+		IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
+
+	return iwl_dvm_send_cmd(priv, &cmd);
+}
+
+int iwl_init_alive_start(struct iwl_priv *priv)
+{
+	int ret;
+
+	if (priv->cfg->bt_params &&
+	    priv->cfg->bt_params->advanced_bt_coexist) {
+		/*
+		 * Tell uCode we are ready to perform calibration
+		 * need to perform this before any calibration
+		 * no need to close the envlope since we are going
+		 * to load the runtime uCode later.
+		 */
+		ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
+			BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+		if (ret)
+			return ret;
+
+	}
+
+	ret = iwl_send_calib_cfg(priv);
+	if (ret)
+		return ret;
+
+	/**
+	 * temperature offset calibration is only needed for runtime ucode,
+	 * so prepare the value now.
+	 */
+	if (priv->cfg->need_temp_offset_calib) {
+		if (priv->cfg->temp_offset_v2)
+			return iwl_set_temperature_offset_calib_v2(priv);
+		else
+			return iwl_set_temperature_offset_calib(priv);
+	}
+
+	return 0;
+}
+
+static int iwl_send_wimax_coex(struct iwl_priv *priv)
+{
+	struct iwl_wimax_coex_cmd coex_cmd;
+
+	/* coexistence is disabled */
+	memset(&coex_cmd, 0, sizeof(coex_cmd));
+
+	return iwl_dvm_send_cmd_pdu(priv,
+				COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
+				sizeof(coex_cmd), &coex_cmd);
+}
+
+static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
+	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
+		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
+	0, 0, 0, 0, 0, 0, 0
+};
+
+void iwl_send_prio_tbl(struct iwl_priv *priv)
+{
+	struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
+
+	memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
+		sizeof(iwl_bt_prio_tbl));
+	if (iwl_dvm_send_cmd_pdu(priv,
+				REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
+				sizeof(prio_tbl_cmd), &prio_tbl_cmd))
+		IWL_ERR(priv, "failed to send BT prio tbl command\n");
+}
+
+int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
+{
+	struct iwl_bt_coex_prot_env_cmd env_cmd;
+	int ret;
+
+	env_cmd.action = action;
+	env_cmd.type = type;
+	ret = iwl_dvm_send_cmd_pdu(priv,
+			       REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
+			       sizeof(env_cmd), &env_cmd);
+	if (ret)
+		IWL_ERR(priv, "failed to send BT env command\n");
+	return ret;
+}
+
+static const u8 iwlagn_default_queue_to_tx_fifo[] = {
+	IWL_TX_FIFO_VO,
+	IWL_TX_FIFO_VI,
+	IWL_TX_FIFO_BE,
+	IWL_TX_FIFO_BK,
+};
+
+static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
+	IWL_TX_FIFO_VO,
+	IWL_TX_FIFO_VI,
+	IWL_TX_FIFO_BE,
+	IWL_TX_FIFO_BK,
+	IWL_TX_FIFO_BK_IPAN,
+	IWL_TX_FIFO_BE_IPAN,
+	IWL_TX_FIFO_VI_IPAN,
+	IWL_TX_FIFO_VO_IPAN,
+	IWL_TX_FIFO_BE_IPAN,
+	IWL_TX_FIFO_UNUSED,
+	IWL_TX_FIFO_AUX,
+};
+
+static int iwl_alive_notify(struct iwl_priv *priv)
+{
+	const u8 *queue_to_txf;
+	u8 n_queues;
+	int ret;
+	int i;
+
+	iwl_trans_fw_alive(priv->trans);
+
+	if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
+	    priv->eeprom_data->sku & EEPROM_SKU_CAP_IPAN_ENABLE) {
+		n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
+		queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
+	} else {
+		n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
+		queue_to_txf = iwlagn_default_queue_to_tx_fifo;
+	}
+
+	for (i = 0; i < n_queues; i++)
+		if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
+			iwl_trans_ac_txq_enable(priv->trans, i,
+						queue_to_txf[i]);
+
+	priv->passive_no_rx = false;
+	priv->transport_queue_stop = 0;
+
+	ret = iwl_send_wimax_coex(priv);
+	if (ret)
+		return ret;
+
+	if (!priv->cfg->no_xtal_calib) {
+		ret = iwl_set_Xtal_calib(priv);
+		if (ret)
+			return ret;
+	}
+
+	return iwl_send_calib_results(priv);
+}
+
+
+/**
+ * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ *   using sample data 100 bytes apart.  If these sample points are good,
+ *   it's a pretty good bet that everything between them is good, too.
+ */
+static int iwl_verify_sec_sparse(struct iwl_priv *priv,
+				  const struct fw_desc *fw_desc)
+{
+	__le32 *image = (__le32 *)fw_desc->v_addr;
+	u32 len = fw_desc->len;
+	u32 val;
+	u32 i;
+
+	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
+
+	for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
+		/* read data comes through single port, auto-incr addr */
+		/* NOTE: Use the debugless read so we don't flood kernel log
+		 * if IWL_DL_IO is set */
+		iwl_write_direct32(priv->trans, HBUS_TARG_MEM_RADDR,
+			i + fw_desc->offset);
+		val = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
+		if (val != le32_to_cpu(*image))
+			return -EIO;
+	}
+
+	return 0;
+}
+
+static void iwl_print_mismatch_sec(struct iwl_priv *priv,
+				    const struct fw_desc *fw_desc)
+{
+	__le32 *image = (__le32 *)fw_desc->v_addr;
+	u32 len = fw_desc->len;
+	u32 val;
+	u32 offs;
+	int errors = 0;
+
+	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
+
+	iwl_write_direct32(priv->trans, HBUS_TARG_MEM_RADDR,
+				fw_desc->offset);
+
+	for (offs = 0;
+	     offs < len && errors < 20;
+	     offs += sizeof(u32), image++) {
+		/* read data comes through single port, auto-incr addr */
+		val = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
+		if (val != le32_to_cpu(*image)) {
+			IWL_ERR(priv, "uCode INST section at "
+				"offset 0x%x, is 0x%x, s/b 0x%x\n",
+				offs, val, le32_to_cpu(*image));
+			errors++;
+		}
+	}
+}
+
+/**
+ * iwl_verify_ucode - determine which instruction image is in SRAM,
+ *    and verify its contents
+ */
+static int iwl_verify_ucode(struct iwl_priv *priv,
+			    enum iwl_ucode_type ucode_type)
+{
+	const struct fw_img *img = iwl_get_ucode_image(priv, ucode_type);
+
+	if (!img) {
+		IWL_ERR(priv, "Invalid ucode requested (%d)\n", ucode_type);
+		return -EINVAL;
+	}
+
+	if (!iwl_verify_sec_sparse(priv, &img->sec[IWL_UCODE_SECTION_INST])) {
+		IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
+		return 0;
+	}
+
+	IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
+
+	iwl_print_mismatch_sec(priv, &img->sec[IWL_UCODE_SECTION_INST]);
+	return -EIO;
+}
+
+struct iwl_alive_data {
+	bool valid;
+	u8 subtype;
+};
+
+static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
+			 struct iwl_rx_packet *pkt, void *data)
+{
+	struct iwl_priv *priv =
+		container_of(notif_wait, struct iwl_priv, notif_wait);
+	struct iwl_alive_data *alive_data = data;
+	struct iwl_alive_resp *palive;
+
+	palive = (void *)pkt->data;
+
+	IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
+		       "0x%01X 0x%01X\n",
+		       palive->is_valid, palive->ver_type,
+		       palive->ver_subtype);
+
+	priv->device_pointers.error_event_table =
+		le32_to_cpu(palive->error_event_table_ptr);
+	priv->device_pointers.log_event_table =
+		le32_to_cpu(palive->log_event_table_ptr);
+
+	alive_data->subtype = palive->ver_subtype;
+	alive_data->valid = palive->is_valid == UCODE_VALID_OK;
+
+	return true;
+}
+
+#define UCODE_ALIVE_TIMEOUT	HZ
+#define UCODE_CALIB_TIMEOUT	(2*HZ)
+
+int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
+				 enum iwl_ucode_type ucode_type)
+{
+	struct iwl_notification_wait alive_wait;
+	struct iwl_alive_data alive_data;
+	const struct fw_img *fw;
+	int ret;
+	enum iwl_ucode_type old_type;
+	static const u8 alive_cmd[] = { REPLY_ALIVE };
+
+	old_type = priv->cur_ucode;
+	priv->cur_ucode = ucode_type;
+	fw = iwl_get_ucode_image(priv, ucode_type);
+
+	priv->ucode_loaded = false;
+
+	if (!fw)
+		return -EINVAL;
+
+	iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
+				   alive_cmd, ARRAY_SIZE(alive_cmd),
+				   iwl_alive_fn, &alive_data);
+
+	ret = iwl_trans_start_fw(priv->trans, fw);
+	if (ret) {
+		priv->cur_ucode = old_type;
+		iwl_remove_notification(&priv->notif_wait, &alive_wait);
+		return ret;
+	}
+
+	/*
+	 * Some things may run in the background now, but we
+	 * just wait for the ALIVE notification here.
+	 */
+	ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
+					UCODE_ALIVE_TIMEOUT);
+	if (ret) {
+		priv->cur_ucode = old_type;
+		return ret;
+	}
+
+	if (!alive_data.valid) {
+		IWL_ERR(priv, "Loaded ucode is not valid!\n");
+		priv->cur_ucode = old_type;
+		return -EIO;
+	}
+
+	/*
+	 * This step takes a long time (60-80ms!!) and
+	 * WoWLAN image should be loaded quickly, so
+	 * skip it for WoWLAN.
+	 */
+	if (ucode_type != IWL_UCODE_WOWLAN) {
+		ret = iwl_verify_ucode(priv, ucode_type);
+		if (ret) {
+			priv->cur_ucode = old_type;
+			return ret;
+		}
+
+		/* delay a bit to give rfkill time to run */
+		msleep(5);
+	}
+
+	ret = iwl_alive_notify(priv);
+	if (ret) {
+		IWL_WARN(priv,
+			"Could not complete ALIVE transition: %d\n", ret);
+		priv->cur_ucode = old_type;
+		return ret;
+	}
+
+	priv->ucode_loaded = true;
+
+	return 0;
+}
+
+static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
+			      struct iwl_rx_packet *pkt, void *data)
+{
+	struct iwl_priv *priv = data;
+	struct iwl_calib_hdr *hdr;
+	int len;
+
+	if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
+		WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
+		return true;
+	}
+
+	hdr = (struct iwl_calib_hdr *)pkt->data;
+	len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
+
+	/* reduce the size by the length field itself */
+	len -= sizeof(__le32);
+
+	if (iwl_calib_set(priv, hdr, len))
+		IWL_ERR(priv, "Failed to record calibration data %d\n",
+			hdr->op_code);
+
+	return false;
+}
+
+int iwl_run_init_ucode(struct iwl_priv *priv)
+{
+	struct iwl_notification_wait calib_wait;
+	static const u8 calib_complete[] = {
+		CALIBRATION_RES_NOTIFICATION,
+		CALIBRATION_COMPLETE_NOTIFICATION
+	};
+	int ret;
+
+	lockdep_assert_held(&priv->mutex);
+
+	/* No init ucode required? Curious, but maybe ok */
+	if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
+		return 0;
+
+	if (priv->init_ucode_run)
+		return 0;
+
+	iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
+				   calib_complete, ARRAY_SIZE(calib_complete),
+				   iwlagn_wait_calib, priv);
+
+	/* Will also start the device */
+	ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
+	if (ret)
+		goto error;
+
+	ret = iwl_init_alive_start(priv);
+	if (ret)
+		goto error;
+
+	/*
+	 * Some things may run in the background now, but we
+	 * just wait for the calibration complete notification.
+	 */
+	ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
+					UCODE_CALIB_TIMEOUT);
+	if (!ret)
+		priv->init_ucode_run = true;
+
+	goto out;
+
+ error:
+	iwl_remove_notification(&priv->notif_wait, &calib_wait);
+ out:
+	/* Whatever happened, stop the device */
+	iwl_trans_stop_device(priv->trans);
+	priv->ucode_loaded = false;
+
+	return ret;
+}