Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 347 insertions, 0 deletions

diff --git a/drivers/net/fddi/skfp/smtdef.c b/drivers/net/fddi/skfp/smtdef.c
new file mode 100644
index 000000000..99cc9a549
--- /dev/null
+++ b/drivers/net/fddi/skfp/smtdef.c
@@ -0,0 +1,347 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/******************************************************************************
+ *
+ *	(C)Copyright 1998,1999 SysKonnect,
+ *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
+ *
+ *	See the file "skfddi.c" for further information.
+ *
+ *	The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+/*
+	SMT/CMT defaults
+*/
+
+#include "h/types.h"
+#include "h/fddi.h"
+#include "h/smc.h"
+
+#ifndef OEM_USER_DATA
+#define OEM_USER_DATA	"SK-NET FDDI V2.0 Userdata"
+#endif
+
+/*
+ * defaults
+ */
+#define TTMS(x)	((u_long)(x)*1000L)
+#define TTS(x)	((u_long)(x)*1000000L)
+#define TTUS(x)	((u_long)(x))
+
+#define DEFAULT_TB_MIN		TTMS(5)
+#define DEFAULT_TB_MAX		TTMS(50)
+#define DEFAULT_C_MIN		TTUS(1600)
+#define DEFAULT_T_OUT		TTMS(100+5)
+#define DEFAULT_TL_MIN		TTUS(30)
+#define DEFAULT_LC_SHORT	TTMS(50+5)
+#define DEFAULT_LC_MEDIUM	TTMS(500+20)
+#define DEFAULT_LC_LONG		TTS(5)+TTMS(50)
+#define DEFAULT_LC_EXTENDED	TTS(50)+TTMS(50)
+#define DEFAULT_T_NEXT_9	TTMS(200+10)
+#define DEFAULT_NS_MAX		TTUS(1310)
+#define DEFAULT_I_MAX		TTMS(25)
+#define DEFAULT_IN_MAX		TTMS(40)
+#define DEFAULT_TD_MIN		TTMS(5)
+#define DEFAULT_T_NON_OP	TTS(1)
+#define DEFAULT_T_STUCK		TTS(8)
+#define DEFAULT_T_DIRECT	TTMS(370)
+#define DEFAULT_T_JAM		TTMS(370)
+#define DEFAULT_T_ANNOUNCE	TTMS(2500)
+#define DEFAULT_D_MAX		TTUS(1617)
+#define DEFAULT_LEM_ALARM	(8)
+#define DEFAULT_LEM_CUTOFF	(7)
+#define DEFAULT_TEST_DONE	TTS(1)
+#define DEFAULT_CHECK_POLL	TTS(1)
+#define DEFAULT_POLL		TTMS(50)
+
+/*
+ * LCT errors threshold
+ */
+#define DEFAULT_LCT_SHORT	1
+#define DEFAULT_LCT_MEDIUM	3
+#define DEFAULT_LCT_LONG	5
+#define DEFAULT_LCT_EXTEND	50
+
+/* Forward declarations */
+void smt_reset_defaults(struct s_smc *smc, int level);
+static void smt_init_mib(struct s_smc *smc, int level);
+static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper);
+
+#define MS2BCLK(x)	((x)*12500L)
+#define US2BCLK(x)	((x)*1250L)
+
+void smt_reset_defaults(struct s_smc *smc, int level)
+{
+	struct smt_config	*smt ;
+	int			i ;
+	u_long			smt_boot_time;
+
+
+	smt_init_mib(smc,level) ;
+
+	smc->os.smc_version = SMC_VERSION ;
+	smt_boot_time = smt_get_time();
+	for( i = 0; i < NUMMACS; i++ )
+		smc->sm.last_tok_time[i] = smt_boot_time ;
+	smt = &smc->s ;
+	smt->attach_s = 0 ;
+	smt->build_ring_map = 1 ;
+	smt->sas = SMT_DAS ;
+	smt->numphys = NUMPHYS ;
+	smt->pcm_tb_min = DEFAULT_TB_MIN ;
+	smt->pcm_tb_max = DEFAULT_TB_MAX ;
+	smt->pcm_c_min = DEFAULT_C_MIN ;
+	smt->pcm_t_out = DEFAULT_T_OUT ;
+	smt->pcm_tl_min = DEFAULT_TL_MIN ;
+	smt->pcm_lc_short = DEFAULT_LC_SHORT ;
+	smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ;
+	smt->pcm_lc_long = DEFAULT_LC_LONG ;
+	smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ;
+	smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ;
+	smt->pcm_ns_max = DEFAULT_NS_MAX ;
+	smt->ecm_i_max = DEFAULT_I_MAX ;
+	smt->ecm_in_max = DEFAULT_IN_MAX ;
+	smt->ecm_td_min = DEFAULT_TD_MIN ;
+	smt->ecm_test_done = DEFAULT_TEST_DONE ;
+	smt->ecm_check_poll = DEFAULT_CHECK_POLL ;
+	smt->rmt_t_non_op = DEFAULT_T_NON_OP ;
+	smt->rmt_t_stuck = DEFAULT_T_STUCK ;
+	smt->rmt_t_direct = DEFAULT_T_DIRECT ;
+	smt->rmt_t_jam = DEFAULT_T_JAM ;
+	smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ;
+	smt->rmt_t_poll = DEFAULT_POLL ;
+        smt->rmt_dup_mac_behavior = FALSE ;  /* See Struct smt_config */
+	smt->mac_d_max = DEFAULT_D_MAX ;
+
+	smt->lct_short = DEFAULT_LCT_SHORT ;
+	smt->lct_medium = DEFAULT_LCT_MEDIUM ;
+	smt->lct_long = DEFAULT_LCT_LONG ;
+	smt->lct_extended = DEFAULT_LCT_EXTEND ;
+
+#ifndef	SLIM_SMT
+#ifdef	ESS
+	if (level == 0) {
+		smc->ess.sync_bw_available = FALSE ;
+		smc->mib.fddiESSPayload = 0 ;
+		smc->mib.fddiESSOverhead = 0 ;
+		smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ;
+		smc->mib.fddiESSMinSegmentSize = 1 ;
+		smc->mib.fddiESSCategory = SB_STATIC ;
+		smc->mib.fddiESSSynchTxMode = FALSE ;
+		smc->ess.raf_act_timer_poll = FALSE ;
+		smc->ess.timer_count = 7 ; 	/* first RAF alc req after 3s */
+	}
+	smc->ess.local_sba_active = FALSE ;
+	smc->ess.sba_reply_pend = NULL ;
+#endif
+#ifdef	SBA
+	smt_init_sba(smc,level) ;
+#endif
+#endif	/* no SLIM_SMT */
+#ifdef	TAG_MODE
+	if (level == 0) {
+		smc->hw.pci_fix_value = 0 ;
+	}
+#endif
+}
+
+/*
+ * manufacturer data
+ */
+static const char man_data[32] =
+/*	 01234567890123456789012345678901	*/
+	"xxxSK-NET FDDI SMT 7.3 - V2.8.8" ;
+
+static void smt_init_mib(struct s_smc *smc, int level)
+{
+	struct fddi_mib		*mib ;
+	struct fddi_mib_p	*pm ;
+	int			port ;
+	int			path ;
+
+	mib = &smc->mib ;
+	if (level == 0) {
+		/*
+		 * set EVERYTHING to ZERO
+		 * EXCEPT hw and os
+		 */
+		memset(((char *)smc)+
+			sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0,
+			sizeof(struct s_smc) -
+			sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ;
+	}
+	else {
+		mib->fddiSMTRemoteDisconnectFlag = 0 ;
+		mib->fddiSMTPeerWrapFlag = 0 ;
+	}
+
+	mib->fddiSMTOpVersionId = 2 ;
+	mib->fddiSMTHiVersionId = 2 ;
+	mib->fddiSMTLoVersionId = 2 ;
+	memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ;
+	if (level == 0) {
+		strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ;
+	}
+	mib->fddiSMTMIBVersionId = 1 ;
+	mib->fddiSMTMac_Ct = NUMMACS ;
+	mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ;
+
+	/*
+	 * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib
+	 * s.sas is not set yet (is set in init driver)
+	 */
+	mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ;
+
+	mib->fddiSMTConfigCapabilities = 0 ;	/* no hold,no wrap_ab*/
+	mib->fddiSMTTT_Notify = 10 ;
+	mib->fddiSMTStatRptPolicy = TRUE ;
+	mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ;
+	mib->fddiSMTMACIndexes = INDEX_MAC ;
+	mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ;	/* separated */
+
+	mib->m[MAC0].fddiMACIndex = INDEX_MAC ;
+	mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ;
+	mib->m[MAC0].fddiMACRequestedPaths =
+		MIB_P_PATH_LOCAL |
+		MIB_P_PATH_SEC_ALTER |
+		MIB_P_PATH_PRIM_ALTER ;
+	mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ;
+	mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ;
+	mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ;
+	mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ;
+	if (level == 0) {
+		mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ;
+		mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ;
+		mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ;
+		mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ;
+		mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ;
+		mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ;
+		mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ;
+	}
+	mib->m[MAC0].fddiMACHardwarePresent = TRUE ;
+	mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ;
+	mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ;
+	mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ;
+	/*
+	 * Path attributes
+	 */
+	for (path = 0 ; path < NUMPATHS ; path++) {
+		mib->a[path].fddiPATHIndex = INDEX_PATH + path ;
+		if (level == 0) {
+			mib->a[path].fddiPATHTVXLowerBound =
+				(u_long)(- US2BCLK(27)) ;
+			mib->a[path].fddiPATHT_MaxLowerBound =
+				(u_long)(- MS2BCLK(165)) ;
+			mib->a[path].fddiPATHMaxT_Req =
+				(u_long)(- MS2BCLK(165)) ;
+		}
+	}
+
+
+	/*
+	 * Port attributes
+	 */
+	pm = mib->p ;
+	for (port = 0 ; port <  NUMPHYS ; port++) {
+		/*
+		 * set MIB pointer in phy
+		 */
+		/* Attention: don't initialize mib pointer here! */
+		/*  It must be initialized during phase 2 */
+		smc->y[port].mib = NULL;
+		mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ;
+
+		pm->fddiPORTIndex = port+INDEX_PORT ;
+		pm->fddiPORTHardwarePresent = TRUE ;
+		if (level == 0) {
+			pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ;
+			pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ;
+		}
+		/*
+		 * fddiPORTRequestedPaths are set in pcmplc.c
+		 * we don't know the port type yet !
+		 */
+		pm->fddiPORTRequestedPaths[1] = 0 ;
+		pm->fddiPORTRequestedPaths[2] = 0 ;
+		pm->fddiPORTRequestedPaths[3] = 0 ;
+		pm->fddiPORTAvailablePaths = MIB_PATH_P ;
+		pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
+		pm++ ;
+	}
+
+	(void) smt_set_mac_opvalues(smc) ;
+}
+
+int smt_set_mac_opvalues(struct s_smc *smc)
+{
+	int	st ;
+	int	st2 ;
+
+	st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB,
+		smc->mib.a[PATH0].fddiPATHTVXLowerBound,
+		&smc->mib.m[MAC0].fddiMACTvxValue) ;
+	st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB,
+		smc->mib.a[PATH0].fddiPATHT_MaxLowerBound,
+		&smc->mib.m[MAC0].fddiMACT_Max) ;
+	st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB,
+		smc->mib.a[PATH0].fddiPATHMaxT_Req,
+		&smc->mib.m[MAC0].fddiMACT_Req)) ;
+	if (st2) {
+		/* Treq attribute changed remotely. So send an AIX_EVENT to the
+		 * user
+		 */
+		AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
+			FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ,
+			smt_get_event_word(smc));
+	}
+	return st;
+}
+
+void smt_fixup_mib(struct s_smc *smc)
+{
+#ifdef	CONCENTRATOR
+	switch (smc->s.sas) {
+	case SMT_SAS :
+		smc->mib.fddiSMTNonMaster_Ct = 1 ;
+		break ;
+	case SMT_DAS :
+		smc->mib.fddiSMTNonMaster_Ct = 2 ;
+		break ;
+	case SMT_NAC :
+		smc->mib.fddiSMTNonMaster_Ct = 0 ;
+		break ;
+	}
+	smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ;
+#else
+	switch (smc->s.sas) {
+	case SMT_SAS :
+		smc->mib.fddiSMTNonMaster_Ct = 1 ;
+		break ;
+	case SMT_DAS :
+		smc->mib.fddiSMTNonMaster_Ct = 2 ;
+		break ;
+	}
+	smc->mib.fddiSMTMaster_Ct = 0 ;
+#endif
+}
+
+/*
+ * determine new setting for operational value
+ * if limit is lower than mib
+ *	use limit
+ * else
+ *	use mib
+ * NOTE : numbers are negative, negate comparison !
+ */
+static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper)
+{
+	u_long	old ;
+	old = *oper ;
+	if ((limit > mib) ^ maxflag)
+		*oper = limit ;
+	else
+		*oper = mib ;
+	return old != *oper;
+}
+