Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

1 files changed, 10 insertions, 43 deletions

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index b7efd7c95e9c..b40b711cf4bd 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -42,11 +42,8 @@
 /** enum ipa_status_opcode - status element opcode hardware values */
 enum ipa_status_opcode {
 	IPA_STATUS_OPCODE_PACKET		= 0x01,
-	IPA_STATUS_OPCODE_NEW_FRAG_RULE		= 0x02,
 	IPA_STATUS_OPCODE_DROPPED_PACKET	= 0x04,
 	IPA_STATUS_OPCODE_SUSPENDED_PACKET	= 0x08,
-	IPA_STATUS_OPCODE_LOG			= 0x10,
-	IPA_STATUS_OPCODE_DCMP			= 0x20,
 	IPA_STATUS_OPCODE_PACKET_2ND_PASS	= 0x40,
 };
 
@@ -54,13 +51,6 @@ enum ipa_status_opcode {
 enum ipa_status_exception {
 	/* 0 means no exception */
 	IPA_STATUS_EXCEPTION_DEAGGR		= 0x01,
-	IPA_STATUS_EXCEPTION_IPTYPE		= 0x04,
-	IPA_STATUS_EXCEPTION_PACKET_LENGTH	= 0x08,
-	IPA_STATUS_EXCEPTION_FRAG_RULE_MISS	= 0x10,
-	IPA_STATUS_EXCEPTION_SW_FILT		= 0x20,
-	/* The meaning of the next value depends on whether the IP version */
-	IPA_STATUS_EXCEPTION_NAT		= 0x40,		/* IPv4 */
-	IPA_STATUS_EXCEPTION_IPV6CT		= IPA_STATUS_EXCEPTION_NAT,
 };
 
 /* Status element provided by hardware */
@@ -79,36 +69,9 @@ struct ipa_status {
 };
 
 /* Field masks for struct ipa_status structure fields */
-
-#define IPA_STATUS_SRC_IDX_FMASK		GENMASK(4, 0)
-
 #define IPA_STATUS_DST_IDX_FMASK		GENMASK(4, 0)
-
-#define IPA_STATUS_FLAGS1_FLT_LOCAL_FMASK	GENMASK(0, 0)
-#define IPA_STATUS_FLAGS1_FLT_HASH_FMASK	GENMASK(1, 1)
-#define IPA_STATUS_FLAGS1_FLT_GLOBAL_FMASK	GENMASK(2, 2)
-#define IPA_STATUS_FLAGS1_FLT_RET_HDR_FMASK	GENMASK(3, 3)
-#define IPA_STATUS_FLAGS1_FLT_RULE_ID_FMASK	GENMASK(13, 4)
-#define IPA_STATUS_FLAGS1_RT_LOCAL_FMASK	GENMASK(14, 14)
-#define IPA_STATUS_FLAGS1_RT_HASH_FMASK		GENMASK(15, 15)
-#define IPA_STATUS_FLAGS1_UCP_FMASK		GENMASK(16, 16)
-#define IPA_STATUS_FLAGS1_RT_TBL_IDX_FMASK	GENMASK(21, 17)
 #define IPA_STATUS_FLAGS1_RT_RULE_ID_FMASK	GENMASK(31, 22)
 
-#define IPA_STATUS_FLAGS2_NAT_HIT_FMASK		GENMASK_ULL(0, 0)
-#define IPA_STATUS_FLAGS2_NAT_ENTRY_IDX_FMASK	GENMASK_ULL(13, 1)
-#define IPA_STATUS_FLAGS2_NAT_TYPE_FMASK	GENMASK_ULL(15, 14)
-#define IPA_STATUS_FLAGS2_TAG_INFO_FMASK	GENMASK_ULL(63, 16)
-
-#define IPA_STATUS_FLAGS3_SEQ_NUM_FMASK		GENMASK(7, 0)
-#define IPA_STATUS_FLAGS3_TOD_CTR_FMASK		GENMASK(31, 8)
-
-#define IPA_STATUS_FLAGS4_HDR_LOCAL_FMASK	GENMASK(0, 0)
-#define IPA_STATUS_FLAGS4_HDR_OFFSET_FMASK	GENMASK(10, 1)
-#define IPA_STATUS_FLAGS4_FRAG_HIT_FMASK	GENMASK(11, 11)
-#define IPA_STATUS_FLAGS4_FRAG_RULE_FMASK	GENMASK(15, 12)
-#define IPA_STATUS_FLAGS4_HW_SPECIFIC_FMASK	GENMASK(31, 16)
-
 #ifdef IPA_VALIDATE
 
 static void ipa_endpoint_validate_build(void)
@@ -1048,8 +1011,7 @@ static bool ipa_endpoint_skb_build(struct ipa_endpoint *endpoint,
 }
 
 /* The format of a packet status element is the same for several status
- * types (opcodes).  The NEW_FRAG_RULE, LOG, DCMP (decompression) types
- * aren't currently supported
+ * types (opcodes).  Other types aren't currently supported.
  */
 static bool ipa_status_format_packet(enum ipa_status_opcode opcode)
 {
@@ -1086,7 +1048,7 @@ static bool ipa_status_drop_packet(const struct ipa_status *status)
 {
 	u32 val;
 
-	/* Deaggregation exceptions we drop; others we consume */
+	/* Deaggregation exceptions we drop; all other types we consume */
 	if (status->exception)
 		return status->exception == IPA_STATUS_EXCEPTION_DEAGGR;
 
@@ -1432,11 +1394,10 @@ void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint)
 	if (!(endpoint->ipa->enabled & BIT(endpoint->endpoint_id)))
 		return;
 
-	if (!endpoint->toward_ipa)
+	if (!endpoint->toward_ipa) {
 		ipa_endpoint_replenish_disable(endpoint);
-
-	if (!endpoint->toward_ipa)
 		(void)ipa_endpoint_program_suspend(endpoint, true);
+	}
 
 	/* IPA v3.5.1 doesn't use channel stop for suspend */
 	stop_channel = endpoint->ipa->version != IPA_VERSION_3_5_1;
@@ -1471,6 +1432,9 @@ void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint)
 
 void ipa_endpoint_suspend(struct ipa *ipa)
 {
+	if (!ipa->setup_complete)
+		return;
+
 	if (ipa->modem_netdev)
 		ipa_modem_suspend(ipa->modem_netdev);
 
@@ -1482,6 +1446,9 @@ void ipa_endpoint_suspend(struct ipa *ipa)
 
 void ipa_endpoint_resume(struct ipa *ipa)
 {
+	if (!ipa->setup_complete)
+		return;
+
 	ipa_endpoint_resume_one(ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX]);
 	ipa_endpoint_resume_one(ipa->name_map[IPA_ENDPOINT_AP_LAN_RX]);