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* [PATCH V3 0/8] nl80211: add 6GHz band support
@ 2019-08-02 11:30 Arend van Spriel
  2019-08-02 11:30 ` [PATCH V3 1/8] nl80211: add 6GHz band definition to enum nl80211_band Arend van Spriel
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

Changing to formal patch series instead of RFC.

In 802.11ax D4.0 a new band has been proposed. This series contains
changes to cfg80211 for supporting this band. With 2GHz and 5GHz there
was no overlap in channel number. However, this new band has channel
numbers with a range from 1 up to 253. The only place I could find an
issue with this is in cfg80211_wext_freq(). Not sure how to deal with
that so it is not part of this series.

The series applies to the master branch of the mac80211-next repository.

Arend van Spriel (8):
  nl80211: add 6GHz band definition to enum nl80211_band
  cfg80211: add 6GHz UNII band definitions
  cfg80211: util: add 6GHz channel to freq conversion and vice versa
  cfg80211: extend ieee80211_operating_class_to_band() for 6GHz
  cfg80211: add 6GHz in code handling array with NUM_NL80211_BANDS
    entries
  cfg80211: use same IR permissive rules for 6GHz band
  cfg80211: ibss: use 11a mandatory rates for 6GHz band operation
  cfg80211: apply same mandatory rate flags for 5GHz and 6GHz

 include/uapi/linux/nl80211.h |  2 ++
 net/mac80211/tx.c            |  1 +
 net/wireless/chan.c          |  3 ++-
 net/wireless/ibss.c          | 16 +++++++++++-----
 net/wireless/nl80211.c       |  1 +
 net/wireless/reg.c           | 21 +++++++++++++++++++--
 net/wireless/trace.h         |  3 ++-
 net/wireless/util.c          | 14 +++++++++++++-
 8 files changed, 51 insertions(+), 10 deletions(-)

-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 1/8] nl80211: add 6GHz band definition to enum nl80211_band
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
@ 2019-08-02 11:30 ` Arend van Spriel
  2019-08-02 11:30 ` [PATCH V3 2/8] cfg80211: add 6GHz UNII band definitions Arend van Spriel
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

In the 802.11ax specification a new band is introduced, which
is also proposed by FCC for unlicensed use. This band is referred
to as 6GHz spanning frequency range from 5925 to 7125 MHz.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
changes:
  - V2
	fix ABI breakage by appending the new band definition.
  - V3
	fix warning (-Wswitch) in mac80211.
---
 include/uapi/linux/nl80211.h | 2 ++
 net/mac80211/tx.c            | 1 +
 2 files changed, 3 insertions(+)

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 822851d..4d5988f 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4543,6 +4543,7 @@ enum nl80211_txrate_gi {
  * @NL80211_BAND_2GHZ: 2.4 GHz ISM band
  * @NL80211_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
  * @NL80211_BAND_60GHZ: around 60 GHz band (58.32 - 69.12 GHz)
+ * @NL80211_BAND_6GHZ: around 6 GHz band (5.9 - 7.2 GHz)
  * @NUM_NL80211_BANDS: number of bands, avoid using this in userspace
  *	since newer kernel versions may support more bands
  */
@@ -4550,6 +4551,7 @@ enum nl80211_band {
 	NL80211_BAND_2GHZ,
 	NL80211_BAND_5GHZ,
 	NL80211_BAND_60GHZ,
+	NL80211_BAND_6GHZ,
 
 	NUM_NL80211_BANDS,
 };
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 235c637..1fa4227 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -162,6 +162,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
 			break;
 		}
 		case NL80211_BAND_5GHZ:
+		case NL80211_BAND_6GHZ:
 			if (r->flags & IEEE80211_RATE_MANDATORY_A)
 				mrate = r->bitrate;
 			break;
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 2/8] cfg80211: add 6GHz UNII band definitions
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
  2019-08-02 11:30 ` [PATCH V3 1/8] nl80211: add 6GHz band definition to enum nl80211_band Arend van Spriel
@ 2019-08-02 11:30 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 3/8] cfg80211: util: add 6GHz channel to freq conversion and vice versa Arend van Spriel
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:30 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

For the new 6GHz there are new UNII band definitions as listed
in the FCC notice [1].

[1] https://docs.fcc.gov/public/attachments/FCC-18-147A1_Rcd.pdf

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/reg.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 4831ad74..646107a 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -3806,8 +3806,9 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
 }
 
 /*
- * See http://www.fcc.gov/document/5-ghz-unlicensed-spectrum-unii, for
- * UNII band definitions
+ * See FCC notices for UNII band definitions
+ *  5GHz: https://www.fcc.gov/document/5-ghz-unlicensed-spectrum-unii
+ *  6GHz: https://www.fcc.gov/document/fcc-proposes-more-spectrum-unlicensed-use-0
  */
 int cfg80211_get_unii(int freq)
 {
@@ -3831,6 +3832,22 @@ int cfg80211_get_unii(int freq)
 	if (freq > 5725 && freq <= 5825)
 		return 4;
 
+	/* UNII-5 */
+	if (freq > 5925 && freq <= 6425)
+		return 5;
+
+	/* UNII-6 */
+	if (freq > 6425 && freq <= 6525)
+		return 6;
+
+	/* UNII-7 */
+	if (freq > 6525 && freq <= 6875)
+		return 7;
+
+	/* UNII-8 */
+	if (freq > 6875 && freq <= 7125)
+		return 8;
+
 	return -EINVAL;
 }
 
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 3/8] cfg80211: util: add 6GHz channel to freq conversion and vice versa
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
  2019-08-02 11:30 ` [PATCH V3 1/8] nl80211: add 6GHz band definition to enum nl80211_band Arend van Spriel
  2019-08-02 11:30 ` [PATCH V3 2/8] cfg80211: add 6GHz UNII band definitions Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 4/8] cfg80211: extend ieee80211_operating_class_to_band() for 6GHz Arend van Spriel
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

Extend the functions ieee80211_channel_to_frequency() and
ieee80211_frequency_to_channel() to support 6GHz band according
specification in 802.11ax D4.1 27.3.22.2.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/util.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 1c39d6a..4e633d4 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -91,6 +91,11 @@ int ieee80211_channel_to_frequency(int chan, enum nl80211_band band)
 		else
 			return 5000 + chan * 5;
 		break;
+	case NL80211_BAND_6GHZ:
+		/* see 802.11ax D4.1 27.3.22.2 */
+		if (chan <= 253)
+			return 5940 + chan * 5;
+		break;
 	case NL80211_BAND_60GHZ:
 		if (chan < 7)
 			return 56160 + chan * 2160;
@@ -111,8 +116,11 @@ int ieee80211_frequency_to_channel(int freq)
 		return (freq - 2407) / 5;
 	else if (freq >= 4910 && freq <= 4980)
 		return (freq - 4000) / 5;
-	else if (freq <= 45000) /* DMG band lower limit */
+	else if (freq < 5940)
 		return (freq - 5000) / 5;
+	else if (freq <= 45000) /* DMG band lower limit */
+		/* see 802.11ax D4.1 27.3.22.2 */
+		return (freq - 5940) / 5;
 	else if (freq >= 58320 && freq <= 70200)
 		return (freq - 56160) / 2160;
 	else
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 4/8] cfg80211: extend ieee80211_operating_class_to_band() for 6GHz
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
                   ` (2 preceding siblings ...)
  2019-08-02 11:31 ` [PATCH V3 3/8] cfg80211: util: add 6GHz channel to freq conversion and vice versa Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 5/8] cfg80211: add 6GHz in code handling array with NUM_NL80211_BANDS entries Arend van Spriel
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

Add 6GHz operating class range as defined in 802.11ax D4.1 Annex E.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/util.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4e633d4..4462837 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1474,6 +1474,9 @@ bool ieee80211_operating_class_to_band(u8 operating_class,
 	case 128 ... 130:
 		*band = NL80211_BAND_5GHZ;
 		return true;
+	case 131 ... 135:
+		*band = NL80211_BAND_6GHZ;
+		return true;
 	case 81:
 	case 82:
 	case 83:
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 5/8] cfg80211: add 6GHz in code handling array with NUM_NL80211_BANDS entries
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
                   ` (3 preceding siblings ...)
  2019-08-02 11:31 ` [PATCH V3 4/8] cfg80211: extend ieee80211_operating_class_to_band() for 6GHz Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 6/8] cfg80211: use same IR permissive rules for 6GHz band Arend van Spriel
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

In nl80211.c there is a policy for all bands in NUM_NL80211_BANDS and
in trace.h there is a callback trace for multicast rates which is per
band in NUM_NL80211_BANDS. Both need to be extended for the new
NL80211_BAND_6GHZ.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/nl80211.c | 1 +
 net/wireless/trace.h   | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1a107f2..d28d745 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -677,6 +677,7 @@ static int validate_ie_attr(const struct nlattr *attr,
 nl80211_match_band_rssi_policy[NUM_NL80211_BANDS] = {
 	[NL80211_BAND_2GHZ] = { .type = NLA_S32 },
 	[NL80211_BAND_5GHZ] = { .type = NLA_S32 },
+	[NL80211_BAND_6GHZ] = { .type = NLA_S32 },
 	[NL80211_BAND_60GHZ] = { .type = NLA_S32 },
 };
 
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 4fbb91a..d98ad2b 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2446,10 +2446,11 @@
 		       sizeof(int) * NUM_NL80211_BANDS);
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", "
-		  "mcast_rates [2.4GHz=0x%x, 5.2GHz=0x%x, 60GHz=0x%x]",
+		  "mcast_rates [2.4GHz=0x%x, 5.2GHz=0x%x, 6GHz=0x%x, 60GHz=0x%x]",
 		  WIPHY_PR_ARG, NETDEV_PR_ARG,
 		  __entry->mcast_rate[NL80211_BAND_2GHZ],
 		  __entry->mcast_rate[NL80211_BAND_5GHZ],
+		  __entry->mcast_rate[NL80211_BAND_6GHZ],
 		  __entry->mcast_rate[NL80211_BAND_60GHZ])
 );
 
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 6/8] cfg80211: use same IR permissive rules for 6GHz band
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
                   ` (4 preceding siblings ...)
  2019-08-02 11:31 ` [PATCH V3 5/8] cfg80211: add 6GHz in code handling array with NUM_NL80211_BANDS entries Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 7/8] cfg80211: ibss: use 11a mandatory rates for 6GHz band operation Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 8/8] cfg80211: apply same mandatory rate flags for 5GHz and 6GHz Arend van Spriel
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

The function cfg80211_ir_permissive_chan() is applicable for
6GHz band as well so make sure it is handled.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/chan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 7dc1bbd..7c9d204 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -894,7 +894,8 @@ static bool cfg80211_ir_permissive_chan(struct wiphy *wiphy,
 		if (chan == other_chan)
 			return true;
 
-		if (chan->band != NL80211_BAND_5GHZ)
+		if (chan->band != NL80211_BAND_5GHZ &&
+		    chan->band != NL80211_BAND_6GHZ)
 			continue;
 
 		r1 = cfg80211_get_unii(chan->center_freq);
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 7/8] cfg80211: ibss: use 11a mandatory rates for 6GHz band operation
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
                   ` (5 preceding siblings ...)
  2019-08-02 11:31 ` [PATCH V3 6/8] cfg80211: use same IR permissive rules for 6GHz band Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  2019-08-02 11:31 ` [PATCH V3 8/8] cfg80211: apply same mandatory rate flags for 5GHz and 6GHz Arend van Spriel
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

The default mandatory rates, ie. when not specified by user-space, is
determined by the band. Select 11a rateset for 6GHz band.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/ibss.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index d1743e6..ae8fe66 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -104,13 +104,19 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 		* use the mandatory rate set for 11b or
 		* 11a for maximum compatibility.
 		*/
-		struct ieee80211_supported_band *sband =
-			rdev->wiphy.bands[params->chandef.chan->band];
+		struct ieee80211_supported_band *sband;
+		enum nl80211_band band;
+		u32 flag;
 		int j;
-		u32 flag = params->chandef.chan->band == NL80211_BAND_5GHZ ?
-			IEEE80211_RATE_MANDATORY_A :
-			IEEE80211_RATE_MANDATORY_B;
 
+		band = params->chandef.chan->band;
+		if (band == NL80211_BAND_5GHZ ||
+		    band == NL80211_BAND_6GHZ)
+			flag = IEEE80211_RATE_MANDATORY_A;
+		else
+			flag = IEEE80211_RATE_MANDATORY_B;
+
+		sband = rdev->wiphy.bands[band];
 		for (j = 0; j < sband->n_bitrates; j++) {
 			if (sband->bitrates[j].flags & flag)
 				params->basic_rates |= BIT(j);
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH V3 8/8] cfg80211: apply same mandatory rate flags for 5GHz and 6GHz
  2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
                   ` (6 preceding siblings ...)
  2019-08-02 11:31 ` [PATCH V3 7/8] cfg80211: ibss: use 11a mandatory rates for 6GHz band operation Arend van Spriel
@ 2019-08-02 11:31 ` Arend van Spriel
  7 siblings, 0 replies; 9+ messages in thread
From: Arend van Spriel @ 2019-08-02 11:31 UTC (permalink / raw)
  To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel

For the new 6GHz band the same rules apply for mandatory rates so
add it to set_mandatory_flags_band() function.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 net/wireless/util.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4462837..f0558e7 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -156,6 +156,7 @@ static void set_mandatory_flags_band(struct ieee80211_supported_band *sband)
 
 	switch (sband->band) {
 	case NL80211_BAND_5GHZ:
+	case NL80211_BAND_6GHZ:
 		want = 3;
 		for (i = 0; i < sband->n_bitrates; i++) {
 			if (sband->bitrates[i].bitrate == 60 ||
-- 
1.9.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, back to index

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-02 11:30 [PATCH V3 0/8] nl80211: add 6GHz band support Arend van Spriel
2019-08-02 11:30 ` [PATCH V3 1/8] nl80211: add 6GHz band definition to enum nl80211_band Arend van Spriel
2019-08-02 11:30 ` [PATCH V3 2/8] cfg80211: add 6GHz UNII band definitions Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 3/8] cfg80211: util: add 6GHz channel to freq conversion and vice versa Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 4/8] cfg80211: extend ieee80211_operating_class_to_band() for 6GHz Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 5/8] cfg80211: add 6GHz in code handling array with NUM_NL80211_BANDS entries Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 6/8] cfg80211: use same IR permissive rules for 6GHz band Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 7/8] cfg80211: ibss: use 11a mandatory rates for 6GHz band operation Arend van Spriel
2019-08-02 11:31 ` [PATCH V3 8/8] cfg80211: apply same mandatory rate flags for 5GHz and 6GHz Arend van Spriel

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