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

Pull networking update from David Miller:

 1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
    timestamp offset.  From Andrey Vagin.

 2) VMWARE VM VSOCK layer, from Andy King.

 3) Much improved support for virtual functions and SR-IOV in bnx2x,
    from Ariel ELior.

 4) All protocols on ipv4 and ipv6 are now network namespace aware, and
    all the compatability checks for initial-namespace-only protocols is
    removed.  Thanks to Tom Parkin for helping deal with the last major
    holdout, L2TP.

 5) IPV6 support in netpoll and network namespace support in pktgen,
    from Cong Wang.

 6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
    Protocol (MVRP) support, from David Ward.

 7) Compute packet lengths more accurately in the packet scheduler, from
    Eric Dumazet.

 8) Use per-task page fragment allocator in skb_append_datato_frags(),
    also from Eric Dumazet.

 9) Add support for connection tracking labels in netfilter, from
    Florian Westphal.

10) Fix default multicast group joining on ipv6, and add anti-spoofing
    checks to 6to4 and 6rd.  From Hannes Frederic Sowa.

11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
    times, rearrange inet frag datastructures for better cacheline
    locality, and move more operations outside of locking.  From Jesper
    Dangaard Brouer.

12) Instead of strict master <--> slave relationships, allow arbitrary
    scenerios with "upper device lists".  From Jiri Pirko.

13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
    Pirko.

14) Add a BPF filter netfilter match target, from Willem de Bruijn.

15) Orphan and delete a bunch of pre-historic networking drivers from
    Paul Gortmaker.

16) Add TSO support for GRE tunnels, from Pravin B SHelar.  Although
    this still needs some minor bug fixing before it's %100 correct in
    all cases.

17) Handle unresolved IPSEC states like ARP, with a resolution packet
    queue.  From Steffen Klassert.

18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
    Hemminger.  This was long overdue.

19) Support SO_REUSEPORT, from Tom Herbert.

20) Allow locking a socket BPF filter, so that it cannot change after a
    process drops capabilities.

21) Add VLAN filtering to bridge, from Vlad Yasevich.

22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
    the ipv6 routes, from YOSHIFUJI Hideaki.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
  ipv6: fix race condition regarding dst->expires and dst->from.
  net: fix a wrong assignment in skb_split()
  ip_gre: remove an extra dst_release()
  ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
  atl1c: restore buffer state
  net: fix a build failure when !CONFIG_PROC_FS
  net: ipv4: fix waring -Wunused-variable
  net: proc: fix build failed when procfs is not configured
  Revert "xen: netback: remove redundant xenvif_put"
  net: move procfs code to net/core/net-procfs.c
  qmi_wwan, cdc-ether: add ADU960S
  bonding: set sysfs device_type to 'bond'
  bonding: fix bond_release_all inconsistencies
  b44: use netdev_alloc_skb_ip_align()
  xen: netback: remove redundant xenvif_put
  net: fec: Do a sanity check on the gpio number
  ip_gre: propogate target device GSO capability to the tunnel device
  ip_gre: allow CSUM capable devices to handle packets
  bonding: Fix initialize after use for 3ad machine state spinlock
  bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
  ...

1 files changed, 472 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
new file mode 100644
index 00000000000..000e842c2ed
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -0,0 +1,472 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 - 2013 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
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#include <net/mac80211.h>
+
+#include "iwl-debug.h"
+#include "iwl-io.h"
+
+#include "mvm.h"
+#include "fw-api-rs.h"
+
+/*
+ * Will return 0 even if the cmd failed when RFKILL is asserted unless
+ * CMD_WANT_SKB is set in cmd->flags.
+ */
+int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd)
+{
+	int ret;
+
+	/*
+	 * Synchronous commands from this op-mode must hold
+	 * the mutex, this ensures we don't try to send two
+	 * (or more) synchronous commands at a time.
+	 */
+	if (!(cmd->flags & CMD_ASYNC))
+		lockdep_assert_held(&mvm->mutex);
+
+	ret = iwl_trans_send_cmd(mvm->trans, cmd);
+
+	/*
+	 * If the caller wants the SKB, then don't hide any problems, the
+	 * caller might access the response buffer which will be NULL if
+	 * the command failed.
+	 */
+	if (cmd->flags & CMD_WANT_SKB)
+		return ret;
+
+	/* Silently ignore failures if RFKILL is asserted */
+	if (!ret || ret == -ERFKILL)
+		return 0;
+	return ret;
+}
+
+int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
+			 u32 flags, u16 len, const void *data)
+{
+	struct iwl_host_cmd cmd = {
+		.id = id,
+		.len = { len, },
+		.data = { data, },
+		.flags = flags,
+	};
+
+	return iwl_mvm_send_cmd(mvm, &cmd);
+}
+
+/*
+ * We assume that the caller set the status to the sucess value
+ */
+int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
+			    u32 *status)
+{
+	struct iwl_rx_packet *pkt;
+	struct iwl_cmd_response *resp;
+	int ret, resp_len;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	/*
+	 * Only synchronous commands can wait for status,
+	 * we use WANT_SKB so the caller can't.
+	 */
+	if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB),
+		      "cmd flags %x", cmd->flags))
+		return -EINVAL;
+
+	cmd->flags |= CMD_SYNC | CMD_WANT_SKB;
+
+	ret = iwl_trans_send_cmd(mvm->trans, cmd);
+	if (ret == -ERFKILL) {
+		/*
+		 * The command failed because of RFKILL, don't update
+		 * the status, leave it as success and return 0.
+		 */
+		return 0;
+	} else if (ret) {
+		return ret;
+	}
+
+	pkt = cmd->resp_pkt;
+	/* Can happen if RFKILL is asserted */
+	if (!pkt) {
+		ret = 0;
+		goto out_free_resp;
+	}
+
+	if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
+		ret = -EIO;
+		goto out_free_resp;
+	}
+
+	resp_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
+	if (WARN_ON_ONCE(resp_len != sizeof(pkt->hdr) + sizeof(*resp))) {
+		ret = -EIO;
+		goto out_free_resp;
+	}
+
+	resp = (void *)pkt->data;
+	*status = le32_to_cpu(resp->status);
+ out_free_resp:
+	iwl_free_resp(cmd);
+	return ret;
+}
+
+/*
+ * We assume that the caller set the status to the sucess value
+ */
+int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len,
+				const void *data, u32 *status)
+{
+	struct iwl_host_cmd cmd = {
+		.id = id,
+		.len = { len, },
+		.data = { data, },
+	};
+
+	return iwl_mvm_send_cmd_status(mvm, &cmd, status);
+}
+
+#define IWL_DECLARE_RATE_INFO(r) \
+	[IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
+
+/*
+ * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
+ */
+static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = {
+	IWL_DECLARE_RATE_INFO(1),
+	IWL_DECLARE_RATE_INFO(2),
+	IWL_DECLARE_RATE_INFO(5),
+	IWL_DECLARE_RATE_INFO(11),
+	IWL_DECLARE_RATE_INFO(6),
+	IWL_DECLARE_RATE_INFO(9),
+	IWL_DECLARE_RATE_INFO(12),
+	IWL_DECLARE_RATE_INFO(18),
+	IWL_DECLARE_RATE_INFO(24),
+	IWL_DECLARE_RATE_INFO(36),
+	IWL_DECLARE_RATE_INFO(48),
+	IWL_DECLARE_RATE_INFO(54),
+};
+
+int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
+					enum ieee80211_band band)
+{
+	int rate = rate_n_flags & RATE_LEGACY_RATE_MSK;
+	int idx;
+	int band_offset = 0;
+
+	/* Legacy rate format, search for match in table */
+	if (band == IEEE80211_BAND_5GHZ)
+		band_offset = IWL_FIRST_OFDM_RATE;
+	for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
+		if (fw_rate_idx_to_plcp[idx] == rate)
+			return idx - band_offset;
+
+	return -1;
+}
+
+u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx)
+{
+	/* Get PLCP rate for tx_cmd->rate_n_flags */
+	return fw_rate_idx_to_plcp[rate_idx];
+}
+
+int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			  struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_error_resp *err_resp = (void *)pkt->data;
+
+	IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n",
+		le32_to_cpu(err_resp->error_type), err_resp->cmd_id);
+	IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n",
+		le16_to_cpu(err_resp->bad_cmd_seq_num),
+		le32_to_cpu(err_resp->error_service));
+	IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n",
+		le64_to_cpu(err_resp->timestamp));
+	return 0;
+}
+
+/*
+ * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h.
+ * The parameter should also be a combination of ANT_[ABC].
+ */
+u8 first_antenna(u8 mask)
+{
+	BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */
+	WARN_ON_ONCE(!mask); /* ffs will return 0 if mask is zeroed */
+	return (u8)(BIT(ffs(mask)));
+}
+
+/*
+ * Toggles between TX antennas to send the probe request on.
+ * Receives the bitmask of valid TX antennas and the *index* used
+ * for the last TX, and returns the next valid *index* to use.
+ * In order to set it in the tx_cmd, must do BIT(idx).
+ */
+u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
+{
+	u8 ind = last_idx;
+	int i;
+
+	for (i = 0; i < RATE_MCS_ANT_NUM; i++) {
+		ind = (ind + 1) % RATE_MCS_ANT_NUM;
+		if (valid & BIT(ind))
+			return ind;
+	}
+
+	WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid);
+	return last_idx;
+}
+
+static struct {
+	char *name;
+	u8 num;
+} advanced_lookup[] = {
+	{ "NMI_INTERRUPT_WDG", 0x34 },
+	{ "SYSASSERT", 0x35 },
+	{ "UCODE_VERSION_MISMATCH", 0x37 },
+	{ "BAD_COMMAND", 0x38 },
+	{ "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
+	{ "FATAL_ERROR", 0x3D },
+	{ "NMI_TRM_HW_ERR", 0x46 },
+	{ "NMI_INTERRUPT_TRM", 0x4C },
+	{ "NMI_INTERRUPT_BREAK_POINT", 0x54 },
+	{ "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
+	{ "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
+	{ "NMI_INTERRUPT_HOST", 0x66 },
+	{ "NMI_INTERRUPT_ACTION_PT", 0x7C },
+	{ "NMI_INTERRUPT_UNKNOWN", 0x84 },
+	{ "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
+	{ "ADVANCED_SYSASSERT", 0 },
+};
+
+static const char *desc_lookup(u32 num)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++)
+		if (advanced_lookup[i].num == num)
+			return advanced_lookup[i].name;
+
+	/* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
+	return advanced_lookup[i].name;
+}
+
+/*
+ * Note: This structure is read from the device with IO accesses,
+ * and the reading already does the endian conversion. As it is
+ * read with u32-sized accesses, any members with a different size
+ * need to be ordered correctly though!
+ */
+struct iwl_error_event_table {
+	u32 valid;		/* (nonzero) valid, (0) log is empty */
+	u32 error_id;		/* type of error */
+	u32 pc;			/* program counter */
+	u32 blink1;		/* branch link */
+	u32 blink2;		/* branch link */
+	u32 ilink1;		/* interrupt link */
+	u32 ilink2;		/* interrupt link */
+	u32 data1;		/* error-specific data */
+	u32 data2;		/* error-specific data */
+	u32 data3;		/* error-specific data */
+	u32 bcon_time;		/* beacon timer */
+	u32 tsf_low;		/* network timestamp function timer */
+	u32 tsf_hi;		/* network timestamp function timer */
+	u32 gp1;		/* GP1 timer register */
+	u32 gp2;		/* GP2 timer register */
+	u32 gp3;		/* GP3 timer register */
+	u32 ucode_ver;		/* uCode version */
+	u32 hw_ver;		/* HW Silicon version */
+	u32 brd_ver;		/* HW board version */
+	u32 log_pc;		/* log program counter */
+	u32 frame_ptr;		/* frame pointer */
+	u32 stack_ptr;		/* stack pointer */
+	u32 hcmd;		/* last host command header */
+	u32 isr0;		/* isr status register LMPM_NIC_ISR0:
+				 * rxtx_flag */
+	u32 isr1;		/* isr status register LMPM_NIC_ISR1:
+				 * host_flag */
+	u32 isr2;		/* isr status register LMPM_NIC_ISR2:
+				 * enc_flag */
+	u32 isr3;		/* isr status register LMPM_NIC_ISR3:
+				 * time_flag */
+	u32 isr4;		/* isr status register LMPM_NIC_ISR4:
+				 * wico interrupt */
+	u32 isr_pref;		/* isr status register LMPM_NIC_PREF_STAT */
+	u32 wait_event;		/* wait event() caller address */
+	u32 l2p_control;	/* L2pControlField */
+	u32 l2p_duration;	/* L2pDurationField */
+	u32 l2p_mhvalid;	/* L2pMhValidBits */
+	u32 l2p_addr_match;	/* L2pAddrMatchStat */
+	u32 lmpm_pmg_sel;	/* indicate which clocks are turned on
+				 * (LMPM_PMG_SEL) */
+	u32 u_timestamp;	/* indicate when the date and time of the
+				 * compilation */
+	u32 flow_handler;	/* FH read/write pointers, RX credit */
+} __packed;
+
+#define ERROR_START_OFFSET  (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE     (7 * sizeof(u32))
+
+void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
+{
+	struct iwl_trans *trans = mvm->trans;
+	struct iwl_error_event_table table;
+	u32 base;
+
+	base = mvm->error_event_table;
+	if (mvm->cur_ucode == IWL_UCODE_INIT) {
+		if (!base)
+			base = mvm->fw->init_errlog_ptr;
+	} else {
+		if (!base)
+			base = mvm->fw->inst_errlog_ptr;
+	}
+
+	if (base < 0x800000 || base >= 0x80C000) {
+		IWL_ERR(mvm,
+			"Not valid error log pointer 0x%08X for %s uCode\n",
+			base,
+			(mvm->cur_ucode == IWL_UCODE_INIT)
+					? "Init" : "RT");
+		return;
+	}
+
+	iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
+
+	if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
+		IWL_ERR(trans, "Start IWL Error Log Dump:\n");
+		IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
+			mvm->status, table.valid);
+	}
+
+	trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
+				      table.data1, table.data2, table.data3,
+				      table.blink1, table.blink2, table.ilink1,
+				      table.ilink2, table.bcon_time, table.gp1,
+				      table.gp2, table.gp3, table.ucode_ver,
+				      table.hw_ver, table.brd_ver);
+	IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
+		desc_lookup(table.error_id));
+	IWL_ERR(mvm, "0x%08X | uPc\n", table.pc);
+	IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1);
+	IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2);
+	IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1);
+	IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2);
+	IWL_ERR(mvm, "0x%08X | data1\n", table.data1);
+	IWL_ERR(mvm, "0x%08X | data2\n", table.data2);
+	IWL_ERR(mvm, "0x%08X | data3\n", table.data3);
+	IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time);
+	IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low);
+	IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi);
+	IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1);
+	IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2);
+	IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3);
+	IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver);
+	IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver);
+	IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver);
+	IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd);
+	IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0);
+	IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1);
+	IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2);
+	IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3);
+	IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4);
+	IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref);
+	IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event);
+	IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control);
+	IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration);
+	IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
+	IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
+	IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
+	IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp);
+	IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
+}
+
+/**
+ * iwl_mvm_send_lq_cmd() - Send link quality command
+ * @init: This command is sent as part of station initialization right
+ *        after station has been added.
+ *
+ * The link quality command is sent as the last step of station creation.
+ * This is the special case in which init is set and we call a callback in
+ * this case to clear the state indicating that station creation is in
+ * progress.
+ */
+int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
+			u8 flags, bool init)
+{
+	struct iwl_host_cmd cmd = {
+		.id = LQ_CMD,
+		.len = { sizeof(struct iwl_lq_cmd), },
+		.flags = flags,
+		.data = { lq, },
+	};
+
+	if (WARN_ON(lq->sta_id == IWL_INVALID_STATION))
+		return -EINVAL;
+
+	if (WARN_ON(init && (cmd.flags & CMD_ASYNC)))
+		return -EINVAL;
+
+	return iwl_mvm_send_cmd(mvm, &cmd);
+}