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

Pull networking updates from David Miller:

 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov.

 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J
    Benniston.

 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn
    Mork.

 4) BPF now has a "random" opcode, from Chema Gonzalez.

 5) Add more BPF documentation and improve test framework, from Daniel
    Borkmann.

 6) Support TCP fastopen over ipv6, from Daniel Lee.

 7) Add software TSO helper functions and use them to support software
    TSO in mvneta and mv643xx_eth drivers.  From Ezequiel Garcia.

 8) Support software TSO in fec driver too, from Nimrod Andy.

 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli.

10) Handle broadcasts more gracefully over macvlan when there are large
    numbers of interfaces configured, from Herbert Xu.

11) Allow more control over fwmark used for non-socket based responses,
    from Lorenzo Colitti.

12) Do TCP congestion window limiting based upon measurements, from Neal
    Cardwell.

13) Support busy polling in SCTP, from Neal Horman.

14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru.

15) Bridge promisc mode handling improvements from Vlad Yasevich.

16) Don't use inetpeer entries to implement ID generation any more, it
    performs poorly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
  rtnetlink: fix userspace API breakage for iproute2 < v3.9.0
  tcp: fixing TLP's FIN recovery
  net: fec: Add software TSO support
  net: fec: Add Scatter/gather support
  net: fec: Increase buffer descriptor entry number
  net: fec: Factorize feature setting
  net: fec: Enable IP header hardware checksum
  net: fec: Factorize the .xmit transmit function
  bridge: fix compile error when compiling without IPv6 support
  bridge: fix smatch warning / potential null pointer dereference
  via-rhine: fix full-duplex with autoneg disable
  bnx2x: Enlarge the dorq threshold for VFs
  bnx2x: Check for UNDI in uncommon branch
  bnx2x: Fix 1G-baseT link
  bnx2x: Fix link for KR with swapped polarity lane
  sctp: Fix sk_ack_backlog wrap-around problem
  net/core: Add VF link state control policy
  net/fsl: xgmac_mdio is dependent on OF_MDIO
  net/fsl: Make xgmac_mdio read error message useful
  net_sched: drr: warn when qdisc is not work conserving
  ...

1 files changed, 83 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 2180902266ae..aa9fc77e8413 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -64,6 +64,7 @@
 
 #include "iwl-debug.h"
 #include "iwl-io.h"
+#include "iwl-prph.h"
 
 #include "mvm.h"
 #include "fw-api-rs.h"
@@ -143,7 +144,7 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
 		      "cmd flags %x", cmd->flags))
 		return -EINVAL;
 
-	cmd->flags |= CMD_SYNC | CMD_WANT_SKB;
+	cmd->flags |= CMD_WANT_SKB;
 
 	ret = iwl_trans_send_cmd(mvm->trans, cmd);
 	if (ret == -ERFKILL) {
@@ -469,6 +470,8 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 			mvm->status, table.valid);
 	}
 
+	/* Do not change this output - scripts rely on it */
+
 	IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version);
 
 	trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
@@ -516,13 +519,14 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 		iwl_mvm_dump_umac_error_log(mvm);
 }
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
 void iwl_mvm_fw_error_sram_dump(struct iwl_mvm *mvm)
 {
 	const struct fw_img *img;
 	u32 ofs, sram_len;
 	void *sram;
 
-	if (!mvm->ucode_loaded || mvm->fw_error_sram)
+	if (!mvm->ucode_loaded || mvm->fw_error_sram || mvm->fw_error_dump)
 		return;
 
 	img = &mvm->fw->img[mvm->cur_ucode];
@@ -538,6 +542,48 @@ void iwl_mvm_fw_error_sram_dump(struct iwl_mvm *mvm)
 	mvm->fw_error_sram_len = sram_len;
 }
 
+void iwl_mvm_fw_error_rxf_dump(struct iwl_mvm *mvm)
+{
+	int i, reg_val;
+	unsigned long flags;
+
+	if (!mvm->ucode_loaded || mvm->fw_error_rxf || mvm->fw_error_dump)
+		return;
+
+	/* reading buffer size */
+	reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
+	mvm->fw_error_rxf_len =
+		(reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
+
+	/* the register holds the value divided by 128 */
+	mvm->fw_error_rxf_len = mvm->fw_error_rxf_len << 7;
+
+	if (!mvm->fw_error_rxf_len)
+		return;
+
+	mvm->fw_error_rxf =  kzalloc(mvm->fw_error_rxf_len, GFP_ATOMIC);
+	if (!mvm->fw_error_rxf) {
+		mvm->fw_error_rxf_len = 0;
+		return;
+	}
+
+	if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
+		kfree(mvm->fw_error_rxf);
+		mvm->fw_error_rxf = NULL;
+		mvm->fw_error_rxf_len = 0;
+		return;
+	}
+
+	for (i = 0; i < (mvm->fw_error_rxf_len / sizeof(u32)); i++) {
+		iwl_trans_write_prph(mvm->trans, RXF_LD_FENCE_OFFSET_ADDR,
+				     i * sizeof(u32));
+		mvm->fw_error_rxf[i] =
+			iwl_trans_read_prph(mvm->trans, RXF_FIFO_RD_FENCE_ADDR);
+	}
+	iwl_trans_release_nic_access(mvm->trans, &flags);
+}
+#endif
+
 /**
  * iwl_mvm_send_lq_cmd() - Send link quality command
  * @init: This command is sent as part of station initialization right
@@ -553,7 +599,7 @@ int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init)
 	struct iwl_host_cmd cmd = {
 		.id = LQ_CMD,
 		.len = { sizeof(struct iwl_lq_cmd), },
-		.flags = init ? CMD_SYNC : CMD_ASYNC,
+		.flags = init ? 0 : CMD_ASYNC,
 		.data = { lq, },
 	};
 
@@ -604,6 +650,39 @@ void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	ieee80211_request_smps(vif, smps_mode);
 }
 
+static void iwl_mvm_diversity_iter(void *_data, u8 *mac,
+				   struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	bool *result = _data;
+	int i;
+
+	for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
+		if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC ||
+		    mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
+			*result = false;
+	}
+}
+
+bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
+{
+	bool result = true;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (num_of_ant(mvm->fw->valid_rx_ant) == 1)
+		return false;
+
+	if (!mvm->cfg->rx_with_siso_diversity)
+		return false;
+
+	ieee80211_iterate_active_interfaces_atomic(
+			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+			iwl_mvm_diversity_iter, &result);
+
+	return result;
+}
+
 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			       bool value)
 {
@@ -623,7 +702,7 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	iwl_mvm_bt_coex_vif_change(mvm);
 
-	return iwl_mvm_power_update_mac(mvm, vif);
+	return iwl_mvm_power_update_mac(mvm);
 }
 
 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)