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

Pull networking updates from David Miller:
 "Here is my initial pull request for the networking subsystem during
  this merge window:

   1) Support for ESN in AH (RFC 4302) from Fan Du.

   2) Add full kernel doc for ethtool command structures, from Ben
      Hutchings.

   3) Add BCM7xxx PHY driver, from Florian Fainelli.

   4) Export computed TCP rate information in netlink socket dumps, from
      Eric Dumazet.

   5) Allow IPSEC SA to be dumped partially using a filter, from Nicolas
      Dichtel.

   6) Convert many drivers to pci_enable_msix_range(), from Alexander
      Gordeev.

   7) Record SKB timestamps more efficiently, from Eric Dumazet.

   8) Switch to microsecond resolution for TCP round trip times, also
      from Eric Dumazet.

   9) Clean up and fix 6lowpan fragmentation handling by making use of
      the existing inet_frag api for it's implementation.

  10) Add TX grant mapping to xen-netback driver, from Zoltan Kiss.

  11) Auto size SKB lengths when composing netlink messages based upon
      past message sizes used, from Eric Dumazet.

  12) qdisc dumps can take a long time, add a cond_resched(), From Eric
      Dumazet.

  13) Sanitize netpoll core and drivers wrt.  SKB handling semantics.
      Get rid of never-used-in-tree netpoll RX handling.  From Eric W
      Biederman.

  14) Support inter-address-family and namespace changing in VTI tunnel
      driver(s).  From Steffen Klassert.

  15) Add Altera TSE driver, from Vince Bridgers.

  16) Optimizing csum_replace2() so that it doesn't adjust the checksum
      by checksumming the entire header, from Eric Dumazet.

  17) Expand BPF internal implementation for faster interpreting, more
      direct translations into JIT'd code, and much cleaner uses of BPF
      filtering in non-socket ocntexts.  From Daniel Borkmann and Alexei
      Starovoitov"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1976 commits)
  netpoll: Use skb_irq_freeable to make zap_completion_queue safe.
  net: Add a test to see if a skb is freeable in irq context
  qlcnic: Fix build failure due to undefined reference to `vxlan_get_rx_port'
  net: ptp: move PTP classifier in its own file
  net: sxgbe: make "core_ops" static
  net: sxgbe: fix logical vs bitwise operation
  net: sxgbe: sxgbe_mdio_register() frees the bus
  Call efx_set_channels() before efx->type->dimension_resources()
  xen-netback: disable rogue vif in kthread context
  net/mlx4: Set proper build dependancy with vxlan
  be2net: fix build dependency on VxLAN
  mac802154: make csma/cca parameters per-wpan
  mac802154: allow only one WPAN to be up at any given time
  net: filter: minor: fix kdoc in __sk_run_filter
  netlink: don't compare the nul-termination in nla_strcmp
  can: c_can: Avoid led toggling for every packet.
  can: c_can: Simplify TX interrupt cleanup
  can: c_can: Store dlc private
  can: c_can: Reduce register access
  can: c_can: Make the code readable
  ...

1 files changed, 137 insertions, 55 deletions

diff --git a/drivers/net/wireless/mwifiex/11ac.c b/drivers/net/wireless/mwifiex/11ac.c
index 5d9a8084665d..c92f27aa71ed 100644
--- a/drivers/net/wireless/mwifiex/11ac.c
+++ b/drivers/net/wireless/mwifiex/11ac.c
@@ -23,6 +23,31 @@
 #include "main.h"
 #include "11ac.h"
 
+/* Tables of the MCS map to the highest data rate (in Mbps) supported
+ * for long GI.
+ */
+static const u16 max_rate_lgi_80MHZ[8][3] = {
+	{0x124, 0x15F, 0x186},	/* NSS = 1 */
+	{0x249, 0x2BE, 0x30C},  /* NSS = 2 */
+	{0x36D, 0x41D, 0x492},  /* NSS = 3 */
+	{0x492, 0x57C, 0x618},  /* NSS = 4 */
+	{0x5B6, 0x6DB, 0x79E},  /* NSS = 5 */
+	{0x6DB, 0x83A, 0x0},    /* NSS = 6 */
+	{0x7FF, 0x999, 0xAAA},  /* NSS = 7 */
+	{0x924, 0xAF8, 0xC30}   /* NSS = 8 */
+};
+
+static const u16 max_rate_lgi_160MHZ[8][3] = {
+	{0x249, 0x2BE, 0x30C},   /* NSS = 1 */
+	{0x492, 0x57C, 0x618},   /* NSS = 2 */
+	{0x6DB, 0x83A, 0x0},     /* NSS = 3 */
+	{0x924, 0xAF8, 0xC30},   /* NSS = 4 */
+	{0xB6D, 0xDB6, 0xF3C},   /* NSS = 5 */
+	{0xDB6, 0x1074, 0x1248}, /* NSS = 6 */
+	{0xFFF, 0x1332, 0x1554}, /* NSS = 7 */
+	{0x1248, 0x15F0, 0x1860} /* NSS = 8 */
+};
+
 /* This function converts the 2-bit MCS map to the highest long GI
  * VHT data rate.
  */
@@ -30,33 +55,10 @@ static u16
 mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
 				  u8 bands, u16 mcs_map)
 {
-	u8 i, nss, max_mcs;
+	u8 i, nss, mcs;
 	u16 max_rate = 0;
 	u32 usr_vht_cap_info = 0;
 	struct mwifiex_adapter *adapter = priv->adapter;
-	/* tables of the MCS map to the highest data rate (in Mbps)
-	 * supported for long GI
-	 */
-	u16 max_rate_lgi_80MHZ[8][3] = {
-		{0x124, 0x15F, 0x186},	/* NSS = 1 */
-		{0x249, 0x2BE, 0x30C},  /* NSS = 2 */
-		{0x36D, 0x41D, 0x492},  /* NSS = 3 */
-		{0x492, 0x57C, 0x618},  /* NSS = 4 */
-		{0x5B6, 0x6DB, 0x79E},  /* NSS = 5 */
-		{0x6DB, 0x83A, 0x0},    /* NSS = 6 */
-		{0x7FF, 0x999, 0xAAA},  /* NSS = 7 */
-		{0x924, 0xAF8, 0xC30}   /* NSS = 8 */
-	};
-	u16 max_rate_lgi_160MHZ[8][3] = {
-		{0x249, 0x2BE, 0x30C},   /* NSS = 1 */
-		{0x492, 0x57C, 0x618},   /* NSS = 2 */
-		{0x6DB, 0x83A, 0x0},     /* NSS = 3 */
-		{0x924, 0xAF8, 0xC30},   /* NSS = 4 */
-		{0xB6D, 0xDB6, 0xF3C},   /* NSS = 5 */
-		{0xDB6, 0x1074, 0x1248}, /* NSS = 6 */
-		{0xFFF, 0x1332, 0x1554}, /* NSS = 7 */
-		{0x1248, 0x15F0, 0x1860} /* NSS = 8 */
-	};
 
 	if (bands & BAND_AAC)
 		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
@@ -64,29 +66,29 @@ mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
 		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
 
 	/* find the max NSS supported */
-	nss = 0;
-	for (i = 0; i < 8; i++) {
-		max_mcs = (mcs_map >> (2 * i)) & 0x3;
-		if (max_mcs < 3)
+	nss = 1;
+	for (i = 1; i <= 8; i++) {
+		mcs = GET_VHTNSSMCS(mcs_map, i);
+		if (mcs < IEEE80211_VHT_MCS_NOT_SUPPORTED)
 			nss = i;
 	}
-	max_mcs = (mcs_map >> (2 * nss)) & 0x3;
+	mcs = GET_VHTNSSMCS(mcs_map, nss);
 
-	/* if max_mcs is 3, nss must be 0 (SS = 1). Thus, max mcs is MCS 9 */
-	if (max_mcs >= 3)
-		max_mcs = 2;
+	/* if mcs is 3, nss must be 1 (NSS = 1). Default mcs to MCS 0~9 */
+	if (mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+		mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
 
 	if (GET_VHTCAP_CHWDSET(usr_vht_cap_info)) {
 		/* support 160 MHz */
-		max_rate = max_rate_lgi_160MHZ[nss][max_mcs];
+		max_rate = max_rate_lgi_160MHZ[nss - 1][mcs];
 		if (!max_rate)
 			/* MCS9 is not supported in NSS6 */
-			max_rate = max_rate_lgi_160MHZ[nss][max_mcs - 1];
+			max_rate = max_rate_lgi_160MHZ[nss - 1][mcs - 1];
 	} else {
-		max_rate = max_rate_lgi_80MHZ[nss][max_mcs];
+		max_rate = max_rate_lgi_80MHZ[nss - 1][mcs];
 		if (!max_rate)
 			/* MCS9 is not supported in NSS3 */
-			max_rate = max_rate_lgi_80MHZ[nss][max_mcs - 1];
+			max_rate = max_rate_lgi_80MHZ[nss - 1][mcs - 1];
 	}
 
 	return max_rate;
@@ -94,21 +96,20 @@ mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
 
 static void
 mwifiex_fill_vht_cap_info(struct mwifiex_private *priv,
-			  struct mwifiex_ie_types_vhtcap *vht_cap, u8 bands)
+			  struct ieee80211_vht_cap *vht_cap, u8 bands)
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 
 	if (bands & BAND_A)
-		vht_cap->vht_cap.vht_cap_info =
+		vht_cap->vht_cap_info =
 				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_a);
 	else
-		vht_cap->vht_cap.vht_cap_info =
+		vht_cap->vht_cap_info =
 				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_bg);
 }
 
-static void
-mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
-			 struct mwifiex_ie_types_vhtcap *vht_cap, u8 bands)
+void mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
+			      struct ieee80211_vht_cap *vht_cap, u8 bands)
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 	u16 mcs_map_user, mcs_map_resp, mcs_map_result;
@@ -119,46 +120,48 @@ mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
 
 	/* rx MCS Set: find the minimum of the user rx mcs and ap rx mcs */
 	mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
-	mcs_map_resp = le16_to_cpu(vht_cap->vht_cap.supp_mcs.rx_mcs_map);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
 	mcs_map_result = 0;
 
 	for (nss = 1; nss <= 8; nss++) {
 		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
 		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
 
-		if ((mcs_user == NO_NSS_SUPPORT) ||
-		    (mcs_resp == NO_NSS_SUPPORT))
-			SET_VHTNSSMCS(mcs_map_result, nss, NO_NSS_SUPPORT);
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
 		else
 			SET_VHTNSSMCS(mcs_map_result, nss,
 				      min(mcs_user, mcs_resp));
 	}
 
-	vht_cap->vht_cap.supp_mcs.rx_mcs_map = cpu_to_le16(mcs_map_result);
+	vht_cap->supp_mcs.rx_mcs_map = cpu_to_le16(mcs_map_result);
 
 	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
-	vht_cap->vht_cap.supp_mcs.rx_highest = cpu_to_le16(tmp);
+	vht_cap->supp_mcs.rx_highest = cpu_to_le16(tmp);
 
 	/* tx MCS Set: find the minimum of the user tx mcs and ap tx mcs */
 	mcs_map_user = GET_DEVTXMCSMAP(adapter->usr_dot_11ac_mcs_support);
-	mcs_map_resp = le16_to_cpu(vht_cap->vht_cap.supp_mcs.tx_mcs_map);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map);
 	mcs_map_result = 0;
 
 	for (nss = 1; nss <= 8; nss++) {
 		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
 		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
-		if ((mcs_user == NO_NSS_SUPPORT) ||
-		    (mcs_resp == NO_NSS_SUPPORT))
-			SET_VHTNSSMCS(mcs_map_result, nss, NO_NSS_SUPPORT);
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
 		else
 			SET_VHTNSSMCS(mcs_map_result, nss,
 				      min(mcs_user, mcs_resp));
 	}
 
-	vht_cap->vht_cap.supp_mcs.tx_mcs_map = cpu_to_le16(mcs_map_result);
+	vht_cap->supp_mcs.tx_mcs_map = cpu_to_le16(mcs_map_result);
 
 	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
-	vht_cap->vht_cap.supp_mcs.tx_highest = cpu_to_le16(tmp);
+	vht_cap->supp_mcs.tx_highest = cpu_to_le16(tmp);
 
 	return;
 }
@@ -192,7 +195,8 @@ int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
 		       (u8 *)bss_desc->bcn_vht_cap,
 		       le16_to_cpu(vht_cap->header.len));
 
-		mwifiex_fill_vht_cap_tlv(priv, vht_cap, bss_desc->bss_band);
+		mwifiex_fill_vht_cap_tlv(priv, &vht_cap->vht_cap,
+					 bss_desc->bss_band);
 		*buffer += sizeof(*vht_cap);
 		ret_len += sizeof(*vht_cap);
 	}
@@ -299,3 +303,81 @@ void mwifiex_set_11ac_ba_params(struct mwifiex_private *priv)
 
 	return;
 }
+
+bool mwifiex_is_bss_in_11ac_mode(struct mwifiex_private *priv)
+{
+	struct mwifiex_bssdescriptor *bss_desc;
+	struct ieee80211_vht_operation *vht_oper;
+
+	bss_desc = &priv->curr_bss_params.bss_descriptor;
+	vht_oper = bss_desc->bcn_vht_oper;
+
+	if (!bss_desc->bcn_vht_cap || !vht_oper)
+		return false;
+
+	if (vht_oper->chan_width == IEEE80211_VHT_CHANWIDTH_USE_HT)
+		return false;
+
+	return true;
+}
+
+u8 mwifiex_get_center_freq_index(struct mwifiex_private *priv, u8 band,
+				 u32 pri_chan, u8 chan_bw)
+{
+	u8 center_freq_idx = 0;
+
+	if (band & BAND_AAC) {
+		switch (pri_chan) {
+		case 36:
+		case 40:
+		case 44:
+		case 48:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 42;
+			break;
+		case 52:
+		case 56:
+		case 60:
+		case 64:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 58;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 50;
+			break;
+		case 100:
+		case 104:
+		case 108:
+		case 112:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 106;
+			break;
+		case 116:
+		case 120:
+		case 124:
+		case 128:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 122;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 114;
+			break;
+		case 132:
+		case 136:
+		case 140:
+		case 144:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 138;
+			break;
+		case 149:
+		case 153:
+		case 157:
+		case 161:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 155;
+			break;
+		default:
+			center_freq_idx = 42;
+		}
+	}
+
+	return center_freq_idx;
+}