Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Jakub Kicinski:
 "WiFi 7 and sendpage changes are the biggest pieces of work for this
  release. The latter will definitely require fixes but I think that we
  got it to a reasonable point.

  Core:

   - Rework the sendpage & splice implementations

     Instead of feeding data into sockets page by page extend sendmsg
     handlers to support taking a reference on the data, controlled by a
     new flag called MSG_SPLICE_PAGES

     Rework the handling of unexpected-end-of-file to invoke an
     additional callback instead of trying to predict what the right
     combination of MORE/NOTLAST flags is

     Remove the MSG_SENDPAGE_NOTLAST flag completely

   - Implement SCM_PIDFD, a new type of CMSG type analogous to
     SCM_CREDENTIALS, but it contains pidfd instead of plain pid

   - Enable socket busy polling with CONFIG_RT

   - Improve reliability and efficiency of reporting for ref_tracker

   - Auto-generate a user space C library for various Netlink families

  Protocols:

   - Allow TCP to shrink the advertised window when necessary, prevent
     sk_rcvbuf auto-tuning from growing the window all the way up to
     tcp_rmem[2]

   - Use per-VMA locking for "page-flipping" TCP receive zerocopy

   - Prepare TCP for device-to-device data transfers, by making sure
     that payloads are always attached to skbs as page frags

   - Make the backoff time for the first N TCP SYN retransmissions
     linear. Exponential backoff is unnecessarily conservative

   - Create a new MPTCP getsockopt to retrieve all info
     (MPTCP_FULL_INFO)

   - Avoid waking up applications using TLS sockets until we have a full
     record

   - Allow using kernel memory for protocol ioctl callbacks, paving the
     way to issuing ioctls over io_uring

   - Add nolocalbypass option to VxLAN, forcing packets to be fully
     encapsulated even if they are destined for a local IP address

   - Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
     in-kernel ECMP implementation (e.g. Open vSwitch) select the same
     link for all packets. Support L4 symmetric hashing in Open vSwitch

   - PPPoE: make number of hash bits configurable

   - Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
     (ipconfig)

   - Add layer 2 miss indication and filtering, allowing higher layers
     (e.g. ACL filters) to make forwarding decisions based on whether
     packet matched forwarding state in lower devices (bridge)

   - Support matching on Connectivity Fault Management (CFM) packets

   - Hide the "link becomes ready" IPv6 messages by demoting their
     printk level to debug

   - HSR: don't enable promiscuous mode if device offloads the proto

   - Support active scanning in IEEE 802.15.4

   - Continue work on Multi-Link Operation for WiFi 7

  BPF:

   - Add precision propagation for subprogs and callbacks. This allows
     maintaining verification efficiency when subprograms are used, or
     in fact passing the verifier at all for complex programs,
     especially those using open-coded iterators

   - Improve BPF's {g,s}setsockopt() length handling. Previously BPF
     assumed the length is always equal to the amount of written data.
     But some protos allow passing a NULL buffer to discover what the
     output buffer *should* be, without writing anything

   - Accept dynptr memory as memory arguments passed to helpers

   - Add routing table ID to bpf_fib_lookup BPF helper

   - Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands

   - Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
     maps as read-only)

   - Show target_{obj,btf}_id in tracing link fdinfo

   - Addition of several new kfuncs (most of the names are
     self-explanatory):
      - Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
        bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
        and bpf_dynptr_clone().
      - bpf_task_under_cgroup()
      - bpf_sock_destroy() - force closing sockets
      - bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs

  Netfilter:

   - Relax set/map validation checks in nf_tables. Allow checking
     presence of an entry in a map without using the value

   - Increase ip_vs_conn_tab_bits range for 64BIT builds

   - Allow updating size of a set

   - Improve NAT tuple selection when connection is closing

  Driver API:

   - Integrate netdev with LED subsystem, to allow configuring HW
     "offloaded" blinking of LEDs based on link state and activity
     (i.e. packets coming in and out)

   - Support configuring rate selection pins of SFP modules

   - Factor Clause 73 auto-negotiation code out of the drivers, provide
     common helper routines

   - Add more fool-proof helpers for managing lifetime of MDIO devices
     associated with the PCS layer

   - Allow drivers to report advanced statistics related to Time Aware
     scheduler offload (taprio)

   - Allow opting out of VF statistics in link dump, to allow more VFs
     to fit into the message

   - Split devlink instance and devlink port operations

  New hardware / drivers:

   - Ethernet:
      - Synopsys EMAC4 IP support (stmmac)
      - Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
      - Marvell 88E6250 7 port switches
      - Microchip LAN8650/1 Rev.B0 PHYs
      - MediaTek MT7981/MT7988 built-in 1GE PHY driver

   - WiFi:
      - Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
      - Realtek RTL8723DS (SDIO variant)
      - Realtek RTL8851BE

   - CAN:
      - Fintek F81604

  Drivers:

   - Ethernet NICs:
      - Intel (100G, ice):
         - support dynamic interrupt allocation
         - use meta data match instead of VF MAC addr on slow-path
      - nVidia/Mellanox:
         - extend link aggregation to handle 4, rather than just 2 ports
         - spawn sub-functions without any features by default
      - OcteonTX2:
         - support HTB (Tx scheduling/QoS) offload
         - make RSS hash generation configurable
         - support selecting Rx queue using TC filters
      - Wangxun (ngbe/txgbe):
         - add basic Tx/Rx packet offloads
         - add phylink support (SFP/PCS control)
      - Freescale/NXP (enetc):
         - report TAPRIO packet statistics
      - Solarflare/AMD:
         - support matching on IP ToS and UDP source port of outer
           header
         - VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
         - add devlink dev info support for EF10

   - Virtual NICs:
      - Microsoft vNIC:
         - size the Rx indirection table based on requested
           configuration
         - support VLAN tagging
      - Amazon vNIC:
         - try to reuse Rx buffers if not fully consumed, useful for ARM
           servers running with 16kB pages
      - Google vNIC:
         - support TCP segmentation of >64kB frames

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - enable USXGMII (88E6191X)
      - Microchip:
         - lan966x: add support for Egress Stage 0 ACL engine
         - lan966x: support mapping packet priority to internal switch
           priority (based on PCP or DSCP)

   - Ethernet PHYs:
      - Broadcom PHYs:
         - support for Wake-on-LAN for BCM54210E/B50212E
         - report LPI counter
      - Microsemi PHYs: support RGMII delay configuration (VSC85xx)
      - Micrel PHYs: receive timestamp in the frame (LAN8841)
      - Realtek PHYs: support optional external PHY clock
      - Altera TSE PCS: merge the driver into Lynx PCS which it is a
        variant of

   - CAN: Kvaser PCIEcan:
      - support packet timestamping

   - WiFi:
      - Intel (iwlwifi):
         - major update for new firmware and Multi-Link Operation (MLO)
         - configuration rework to drop test devices and split the
           different families
         - support for segmented PNVM images and power tables
         - new vendor entries for PPAG (platform antenna gain) feature
      - Qualcomm 802.11ax (ath11k):
         - Multiple Basic Service Set Identifier (MBSSID) and Enhanced
           MBSSID Advertisement (EMA) support in AP mode
         - support factory test mode
      - RealTek (rtw89):
         - add RSSI based antenna diversity
         - support U-NII-4 channels on 5 GHz band
      - RealTek (rtl8xxxu):
         - AP mode support for 8188f
         - support USB RX aggregation for the newer chips"

* tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1602 commits)
  net: scm: introduce and use scm_recv_unix helper
  af_unix: Skip SCM_PIDFD if scm->pid is NULL.
  net: lan743x: Simplify comparison
  netlink: Add __sock_i_ino() for __netlink_diag_dump().
  net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
  Revert "af_unix: Call scm_recv() only after scm_set_cred()."
  phylink: ReST-ify the phylink_pcs_neg_mode() kdoc
  libceph: Partially revert changes to support MSG_SPLICE_PAGES
  net: phy: mscc: fix packet loss due to RGMII delays
  net: mana: use vmalloc_array and vcalloc
  net: enetc: use vmalloc_array and vcalloc
  ionic: use vmalloc_array and vcalloc
  pds_core: use vmalloc_array and vcalloc
  gve: use vmalloc_array and vcalloc
  octeon_ep: use vmalloc_array and vcalloc
  net: usb: qmi_wwan: add u-blox 0x1312 composition
  perf trace: fix MSG_SPLICE_PAGES build error
  ipvlan: Fix return value of ipvlan_queue_xmit()
  netfilter: nf_tables: fix underflow in chain reference counter
  netfilter: nf_tables: unbind non-anonymous set if rule construction fails
  ...

1 files changed, 138 insertions, 96 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
index c6f2672fdc73..650e4bde9c17 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright(c) 2020-2022 Intel Corporation
+ * Copyright(c) 2020-2023 Intel Corporation
  */
 
 #include "iwl-drv.h"
@@ -31,18 +31,18 @@ static bool iwl_pnvm_complete_fn(struct iwl_notif_wait_data *notif_wait,
 }
 
 static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data,
-				   size_t len)
+				   size_t len,
+				   struct iwl_pnvm_image *pnvm_data)
 {
 	const struct iwl_ucode_tlv *tlv;
 	u32 sha1 = 0;
 	u16 mac_type = 0, rf_id = 0;
-	u8 *pnvm_data = NULL, *tmp;
 	bool hw_match = false;
-	u32 size = 0;
-	int ret;
 
 	IWL_DEBUG_FW(trans, "Handling PNVM section\n");
 
+	memset(pnvm_data, 0, sizeof(*pnvm_data));
+
 	while (len >= sizeof(*tlv)) {
 		u32 tlv_len, tlv_type;
 
@@ -55,8 +55,7 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data,
 		if (len < tlv_len) {
 			IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
 				len, tlv_len);
-			ret = -EINVAL;
-			goto out;
+			return -EINVAL;
 		}
 
 		data += sizeof(*tlv);
@@ -75,6 +74,7 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data,
 			IWL_DEBUG_FW(trans,
 				     "Got IWL_UCODE_TLV_PNVM_VERSION %0x\n",
 				     sha1);
+			pnvm_data->version = sha1;
 			break;
 		case IWL_UCODE_TLV_HW_TYPE:
 			if (tlv_len < 2 * sizeof(__le16)) {
@@ -112,26 +112,26 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data,
 				break;
 			}
 
-			IWL_DEBUG_FW(trans, "Adding data (size %d)\n",
-				     data_len);
-
-			tmp = krealloc(pnvm_data, size + data_len, GFP_KERNEL);
-			if (!tmp) {
+			if (pnvm_data->n_chunks == IPC_DRAM_MAP_ENTRY_NUM_MAX) {
 				IWL_DEBUG_FW(trans,
-					     "Couldn't allocate (more) pnvm_data\n");
-
-				ret = -ENOMEM;
-				goto out;
+					     "too many payloads to allocate in DRAM.\n");
+				return -EINVAL;
 			}
 
-			pnvm_data = tmp;
-
-			memcpy(pnvm_data + size, section->data, data_len);
+			IWL_DEBUG_FW(trans, "Adding data (size %d)\n",
+				     data_len);
 
-			size += data_len;
+			pnvm_data->chunks[pnvm_data->n_chunks].data = section->data;
+			pnvm_data->chunks[pnvm_data->n_chunks].len = data_len;
+			pnvm_data->n_chunks++;
 
 			break;
 		}
+		case IWL_UCODE_TLV_MEM_DESC:
+			if (iwl_uefi_handle_tlv_mem_desc(trans, data, tlv_len,
+							 pnvm_data))
+				return -EINVAL;
+			break;
 		case IWL_UCODE_TLV_PNVM_SKU:
 			IWL_DEBUG_FW(trans,
 				     "New PNVM section started, stop parsing.\n");
@@ -152,26 +152,20 @@ done:
 			     "HW mismatch, skipping PNVM section (need mac_type 0x%x rf_id 0x%x)\n",
 			     CSR_HW_REV_TYPE(trans->hw_rev),
 			     CSR_HW_RFID_TYPE(trans->hw_rf_id));
-		ret = -ENOENT;
-		goto out;
+		return -ENOENT;
 	}
 
-	if (!size) {
+	if (!pnvm_data->n_chunks) {
 		IWL_DEBUG_FW(trans, "Empty PNVM, skipping.\n");
-		ret = -ENOENT;
-		goto out;
+		return -ENOENT;
 	}
 
-	IWL_INFO(trans, "loaded PNVM version %08x\n", sha1);
-
-	ret = iwl_trans_set_pnvm(trans, pnvm_data, size);
-out:
-	kfree(pnvm_data);
-	return ret;
+	return 0;
 }
 
 static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data,
-			  size_t len)
+			  size_t len,
+			  struct iwl_pnvm_image *pnvm_data)
 {
 	const struct iwl_ucode_tlv *tlv;
 
@@ -212,7 +206,8 @@ static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data,
 			    trans->sku_id[2] == le32_to_cpu(sku_id->data[2])) {
 				int ret;
 
-				ret = iwl_pnvm_handle_section(trans, data, len);
+				ret = iwl_pnvm_handle_section(trans, data, len,
+							      pnvm_data);
 				if (!ret)
 					return 0;
 			} else {
@@ -255,89 +250,136 @@ static int iwl_pnvm_get_from_fs(struct iwl_trans *trans, u8 **data, size_t *len)
 	return 0;
 }
 
-int iwl_pnvm_load(struct iwl_trans *trans,
-		  struct iwl_notif_wait_data *notif_wait)
+static u8 *iwl_get_pnvm_image(struct iwl_trans *trans_p, size_t *len)
 {
-	u8 *data;
-	size_t len;
 	struct pnvm_sku_package *package;
-	struct iwl_notification_wait pnvm_wait;
-	static const u16 ntf_cmds[] = { WIDE_ID(REGULATORY_AND_NVM_GROUP,
-						PNVM_INIT_COMPLETE_NTFY) };
-	int ret;
-
-	/* if the SKU_ID is empty, there's nothing to do */
-	if (!trans->sku_id[0] && !trans->sku_id[1] && !trans->sku_id[2])
-		return 0;
-
-	/*
-	 * If we already loaded (or tried to load) it before, we just
-	 * need to set it again.
-	 */
-	if (trans->pnvm_loaded) {
-		ret = iwl_trans_set_pnvm(trans, NULL, 0);
-		if (ret)
-			return ret;
-		goto skip_parse;
-	}
+	u8 *image = NULL;
 
 	/* First attempt to get the PNVM from BIOS */
-	package = iwl_uefi_get_pnvm(trans, &len);
+	package = iwl_uefi_get_pnvm(trans_p, len);
 	if (!IS_ERR_OR_NULL(package)) {
-		if (len >= sizeof(*package)) {
+		if (*len >= sizeof(*package)) {
 			/* we need only the data */
-			len -= sizeof(*package);
-			data = kmemdup(package->data, len, GFP_KERNEL);
-		} else {
-			data = NULL;
+			*len -= sizeof(*package);
+			image = kmemdup(package->data, *len, GFP_KERNEL);
 		}
-
 		/* free package regardless of whether kmemdup succeeded */
 		kfree(package);
-
-		if (data)
-			goto parse;
+		if (image)
+			return image;
 	}
 
 	/* If it's not available, try from the filesystem */
-	ret = iwl_pnvm_get_from_fs(trans, &data, &len);
+	if (iwl_pnvm_get_from_fs(trans_p, &image, len))
+		return NULL;
+	return image;
+}
+
+static void iwl_pnvm_load_pnvm_to_trans(struct iwl_trans *trans,
+					const struct iwl_ucode_capabilities *capa)
+{
+	struct iwl_pnvm_image *pnvm_data = NULL;
+	u8 *data = NULL;
+	size_t length;
+	int ret;
+
+	/* failed to get/parse the image in the past, no use trying again */
+	if (trans->fail_to_parse_pnvm_image)
+		return;
+
+	if (trans->pnvm_loaded)
+		goto set;
+
+	data = iwl_get_pnvm_image(trans, &length);
+	if (!data) {
+		trans->fail_to_parse_pnvm_image = true;
+		return;
+	}
+
+	pnvm_data = kzalloc(sizeof(*pnvm_data), GFP_KERNEL);
+	if (!pnvm_data)
+		goto free;
+
+	ret = iwl_pnvm_parse(trans, data, length, pnvm_data);
 	if (ret) {
-		/*
-		 * Pretend we've loaded it - at least we've tried and
-		 * couldn't load it at all, so there's no point in
-		 * trying again over and over.
-		 */
-		trans->pnvm_loaded = true;
-
-		goto skip_parse;
+		trans->fail_to_parse_pnvm_image = true;
+		goto free;
 	}
 
-parse:
-	iwl_pnvm_parse(trans, data, len);
+	ret = iwl_trans_load_pnvm(trans, pnvm_data, capa);
+	if (ret)
+		goto free;
+	IWL_INFO(trans, "loaded PNVM version %08x\n", pnvm_data->version);
 
+set:
+	iwl_trans_set_pnvm(trans, capa);
+free:
 	kfree(data);
+	kfree(pnvm_data);
+}
 
-skip_parse:
-	/* now try to get the reduce power table, if not loaded yet */
-	if (!trans->reduce_power_loaded) {
-		data = iwl_uefi_get_reduced_power(trans, &len);
-		if (IS_ERR_OR_NULL(data)) {
-			/*
-			 * Pretend we've loaded it - at least we've tried and
-			 * couldn't load it at all, so there's no point in
-			 * trying again over and over.
-			 */
-			trans->reduce_power_loaded = true;
-		} else {
-			ret = iwl_trans_set_reduce_power(trans, data, len);
-			if (ret)
-				IWL_DEBUG_FW(trans,
-					     "Failed to set reduce power table %d\n",
-					     ret);
-			kfree(data);
-		}
+static void
+iwl_pnvm_load_reduce_power_to_trans(struct iwl_trans *trans,
+				    const struct iwl_ucode_capabilities *capa)
+{
+	struct iwl_pnvm_image *pnvm_data = NULL;
+	u8 *data = NULL;
+	size_t length;
+	int ret;
+
+	if (trans->failed_to_load_reduce_power_image)
+		return;
+
+	if (trans->reduce_power_loaded)
+		goto set;
+
+	data = iwl_uefi_get_reduced_power(trans, &length);
+	if (IS_ERR(data)) {
+		trans->failed_to_load_reduce_power_image = true;
+		return;
 	}
 
+	pnvm_data = kzalloc(sizeof(*pnvm_data), GFP_KERNEL);
+	if (!pnvm_data)
+		goto free;
+
+	ret = iwl_uefi_reduce_power_parse(trans, data, length, pnvm_data);
+	if (ret) {
+		trans->failed_to_load_reduce_power_image = true;
+		goto free;
+	}
+
+	ret = iwl_trans_load_reduce_power(trans, pnvm_data, capa);
+	if (ret) {
+		IWL_DEBUG_FW(trans,
+			     "Failed to load reduce power table %d\n",
+			     ret);
+		trans->failed_to_load_reduce_power_image = true;
+		goto free;
+	}
+
+set:
+	iwl_trans_set_reduce_power(trans, capa);
+free:
+	kfree(data);
+	kfree(pnvm_data);
+}
+
+int iwl_pnvm_load(struct iwl_trans *trans,
+		  struct iwl_notif_wait_data *notif_wait,
+		  const struct iwl_ucode_capabilities *capa)
+{
+	struct iwl_notification_wait pnvm_wait;
+	static const u16 ntf_cmds[] = { WIDE_ID(REGULATORY_AND_NVM_GROUP,
+						PNVM_INIT_COMPLETE_NTFY) };
+
+	/* if the SKU_ID is empty, there's nothing to do */
+	if (!trans->sku_id[0] && !trans->sku_id[1] && !trans->sku_id[2])
+		return 0;
+
+	iwl_pnvm_load_pnvm_to_trans(trans, capa);
+	iwl_pnvm_load_reduce_power_to_trans(trans, capa);
+
 	iwl_init_notification_wait(notif_wait, &pnvm_wait,
 				   ntf_cmds, ARRAY_SIZE(ntf_cmds),
 				   iwl_pnvm_complete_fn, trans);