Merge tag 'wireless-next-2022-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v5.20

Third set of patches for v5.20. MLO work continues and we have a lot
of stack changes due to that, including driver API changes. Not much
driver patches except on mt76.

Major changes:

cfg80211/mac80211
 - more prepartion for Wi-Fi 7 Multi-Link Operation (MLO) support,
   works with one link now
 - align with IEEE Draft P802.11be_D2.0
 - hardware timestamps for receive and transmit

mt76
 - preparation for new chipset support
 - ACPI SAR support

* tag 'wireless-next-2022-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (254 commits)
  wifi: mac80211: fix link data leak
  wifi: mac80211: mlme: fix disassoc with MLO
  wifi: mac80211: add macros to loop over active links
  wifi: mac80211: remove erroneous sband/link validation
  wifi: mac80211: mlme: transmit assoc frame with address translation
  wifi: mac80211: verify link addresses are different
  wifi: mac80211: rx: track link in RX data
  wifi: mac80211: optionally implement MLO multicast TX
  wifi: mac80211: expand ieee80211_mgmt_tx() for MLO
  wifi: nl80211: add MLO link ID to the NL80211_CMD_FRAME TX API
  wifi: mac80211: report link ID to cfg80211 on mgmt RX
  wifi: cfg80211: report link ID in NL80211_CMD_FRAME
  wifi: mac80211: add hardware timestamps for RX and TX
  wifi: cfg80211: add hardware timestamps to frame RX info
  wifi: cfg80211/nl80211: move rx management data into a struct
  wifi: cfg80211: add a function for reporting TX status with hardware timestamps
  wifi: nl80211: add RX and TX timestamp attributes
  wifi: ieee80211: add helper functions for detecting TM/FTM frames
  wifi: mac80211_hwsim: handle links for wmediumd/virtio
  wifi: mac80211: sta_info: fix link_sta insertion
  ...
====================

Link: https://lore.kernel.org/r/20220725174547.EA465C341C6@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 49 insertions, 3 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 7bb1ae59f3a5..ffb7c573e299 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -764,6 +764,13 @@
  *	%NL80211_ATTR_CSA_C_OFFSETS_TX is an array of offsets to CSA
  *	counters which will be updated to the current value. This attribute
  *	is used during CSA period.
+ *	For TX on an MLD, the frequency can be omitted and the link ID be
+ *	specified, or if transmitting to a known peer MLD (with MLD addresses
+ *	in the frame) both can be omitted and the link will be selected by
+ *	lower layers.
+ *	For RX notification, %NL80211_ATTR_RX_HW_TIMESTAMP may be included to
+ *	indicate the frame RX timestamp and %NL80211_ATTR_TX_HW_TIMESTAMP may
+ *	be included to indicate the ack TX timestamp.
  * @NL80211_CMD_FRAME_WAIT_CANCEL: When an off-channel TX was requested, this
  *	command may be used with the corresponding cookie to cancel the wait
  *	time if it is known that it is no longer necessary.  This command is
@@ -774,7 +781,9 @@
  *	transmitted with %NL80211_CMD_FRAME. %NL80211_ATTR_COOKIE identifies
  *	the TX command and %NL80211_ATTR_FRAME includes the contents of the
  *	frame. %NL80211_ATTR_ACK flag is included if the recipient acknowledged
- *	the frame.
+ *	the frame. %NL80211_ATTR_TX_HW_TIMESTAMP may be included to indicate the
+ *	tx timestamp and %NL80211_ATTR_RX_HW_TIMESTAMP may be included to
+ *	indicate the ack RX timestamp.
  * @NL80211_CMD_ACTION_TX_STATUS: Alias for @NL80211_CMD_FRAME_TX_STATUS for
  *	backward compatibility.
  *
@@ -1119,6 +1128,12 @@
  *	has been received. %NL80211_ATTR_FRAME is used to specify the
  *	frame contents.  The frame is the raw EAPoL data, without ethernet or
  *	802.11 headers.
+ *	For an MLD transmitter, the %NL80211_ATTR_MLO_LINK_ID may be given and
+ *	its effect will depend on the destination: If the destination is known
+ *	to be an MLD, this will be used as a hint to select the link to transmit
+ *	the frame on. If the destination is not an MLD, this will select both
+ *	the link to transmit on and the source address will be set to the link
+ *	address of that link.
  *	When used as an event indication %NL80211_ATTR_CONTROL_PORT_ETHERTYPE,
  *	%NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT and %NL80211_ATTR_MAC are added
  *	indicating the protocol type of the received frame; whether the frame
@@ -1254,6 +1269,10 @@
  *	without %NL80211_ATTR_MLO_LINK_ID as an easy way to remove all links
  *	in preparation for e.g. roaming to a regular (non-MLO) AP.
  *
+ * @NL80211_CMD_ADD_LINK_STA: Add a link to an MLD station
+ * @NL80211_CMD_MODIFY_LINK_STA: Modify a link of an MLD station
+ * @NL80211_CMD_REMOVE_LINK_STA: Remove a link of an MLD station
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -1501,6 +1520,10 @@ enum nl80211_commands {
 	NL80211_CMD_ADD_LINK,
 	NL80211_CMD_REMOVE_LINK,
 
+	NL80211_CMD_ADD_LINK_STA,
+	NL80211_CMD_MODIFY_LINK_STA,
+	NL80211_CMD_REMOVE_LINK_STA,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -2360,8 +2383,10 @@ enum nl80211_commands {
  *
  * @NL80211_ATTR_IFTYPE_EXT_CAPA: Nested attribute of the following attributes:
  *	%NL80211_ATTR_IFTYPE, %NL80211_ATTR_EXT_CAPA,
- *	%NL80211_ATTR_EXT_CAPA_MASK, to specify the extended capabilities per
- *	interface type.
+ *	%NL80211_ATTR_EXT_CAPA_MASK, to specify the extended capabilities and
+ *	other interface-type specific capabilities per interface type. For MLO,
+ *	%NL80211_ATTR_EML_CAPABILITY and %NL80211_ATTR_MLD_CAPA_AND_OPS are
+ *	present.
  *
  * @NL80211_ATTR_MU_MIMO_GROUP_DATA: array of 24 bytes that defines a MU-MIMO
  *	groupID for monitor mode.
@@ -2701,6 +2726,21 @@ enum nl80211_commands {
  *	suites allowed as %NL80211_MAX_NR_AKM_SUITES which is the legacy maximum
  *	number prior to the introduction of this attribute.
  *
+ * @NL80211_ATTR_EML_CAPABILITY: EML Capability information (u16)
+ * @NL80211_ATTR_MLD_CAPA_AND_OPS: MLD Capabilities and Operations (u16)
+ *
+ * @NL80211_ATTR_TX_HW_TIMESTAMP: Hardware timestamp for TX operation in
+ *	nanoseconds (u64). This is the device clock timestamp so it will
+ *	probably reset when the device is stopped or the firmware is reset.
+ *	When used with %NL80211_CMD_FRAME_TX_STATUS, indicates the frame TX
+ *	timestamp. When used with %NL80211_CMD_FRAME RX notification, indicates
+ *	the ack TX timestamp.
+ * @NL80211_ATTR_RX_HW_TIMESTAMP: Hardware timestamp for RX operation in
+ *	nanoseconds (u64). This is the device clock timestamp so it will
+ *	probably reset when the device is stopped or the firmware is reset.
+ *	When used with %NL80211_CMD_FRAME_TX_STATUS, indicates the ack RX
+ *	timestamp. When used with %NL80211_CMD_FRAME RX notification, indicates
+ *	the incoming frame RX timestamp.
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3223,6 +3263,12 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_MAX_NUM_AKM_SUITES,
 
+	NL80211_ATTR_EML_CAPABILITY,
+	NL80211_ATTR_MLD_CAPA_AND_OPS,
+
+	NL80211_ATTR_TX_HW_TIMESTAMP,
+	NL80211_ATTR_RX_HW_TIMESTAMP,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,