forked from luck/tmp_suning_uos_patched
0a1336c8c9
Commit 51f65ebc ("IB/ipath - program intconfig register using new HT
irq hook"), which fixed interrupts for HyperTransport HCAs, broke PCI
Express HCAs, because for those HCAs, the driver uses the value of
pdev->irq before pci_enable_msi() and ends up getting a totally bogus
IRQ number. Fix this by using the value of pdev->irq after
pci_enable_msi().
Signed-off-by: Roland Dreier <rolandd@cisco.com>
1374 lines
47 KiB
C
1374 lines
47 KiB
C
/*
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* Copyright (c) 2006 QLogic, Inc. All rights reserved.
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* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* This file contains all of the code that is specific to the
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* InfiniPath PCIe chip.
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*/
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include "ipath_kernel.h"
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#include "ipath_registers.h"
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/*
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* This file contains all the chip-specific register information and
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* access functions for the QLogic InfiniPath PCI-Express chip.
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*
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* This lists the InfiniPath registers, in the actual chip layout.
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* This structure should never be directly accessed.
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*/
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struct _infinipath_do_not_use_kernel_regs {
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unsigned long long Revision;
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unsigned long long Control;
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unsigned long long PageAlign;
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unsigned long long PortCnt;
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unsigned long long DebugPortSelect;
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unsigned long long Reserved0;
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unsigned long long SendRegBase;
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unsigned long long UserRegBase;
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unsigned long long CounterRegBase;
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unsigned long long Scratch;
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unsigned long long Reserved1;
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unsigned long long Reserved2;
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unsigned long long IntBlocked;
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unsigned long long IntMask;
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unsigned long long IntStatus;
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unsigned long long IntClear;
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unsigned long long ErrorMask;
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unsigned long long ErrorStatus;
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unsigned long long ErrorClear;
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unsigned long long HwErrMask;
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unsigned long long HwErrStatus;
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unsigned long long HwErrClear;
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unsigned long long HwDiagCtrl;
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unsigned long long MDIO;
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unsigned long long IBCStatus;
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unsigned long long IBCCtrl;
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unsigned long long ExtStatus;
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unsigned long long ExtCtrl;
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unsigned long long GPIOOut;
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unsigned long long GPIOMask;
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unsigned long long GPIOStatus;
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unsigned long long GPIOClear;
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unsigned long long RcvCtrl;
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unsigned long long RcvBTHQP;
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unsigned long long RcvHdrSize;
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unsigned long long RcvHdrCnt;
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unsigned long long RcvHdrEntSize;
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unsigned long long RcvTIDBase;
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unsigned long long RcvTIDCnt;
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unsigned long long RcvEgrBase;
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unsigned long long RcvEgrCnt;
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unsigned long long RcvBufBase;
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unsigned long long RcvBufSize;
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unsigned long long RxIntMemBase;
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unsigned long long RxIntMemSize;
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unsigned long long RcvPartitionKey;
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unsigned long long Reserved3;
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unsigned long long RcvPktLEDCnt;
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unsigned long long Reserved4[8];
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unsigned long long SendCtrl;
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unsigned long long SendPIOBufBase;
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unsigned long long SendPIOSize;
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unsigned long long SendPIOBufCnt;
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unsigned long long SendPIOAvailAddr;
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unsigned long long TxIntMemBase;
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unsigned long long TxIntMemSize;
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unsigned long long Reserved5;
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unsigned long long PCIeRBufTestReg0;
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unsigned long long PCIeRBufTestReg1;
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unsigned long long Reserved51[6];
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unsigned long long SendBufferError;
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unsigned long long SendBufferErrorCONT1;
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unsigned long long Reserved6SBE[6];
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unsigned long long RcvHdrAddr0;
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unsigned long long RcvHdrAddr1;
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unsigned long long RcvHdrAddr2;
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unsigned long long RcvHdrAddr3;
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unsigned long long RcvHdrAddr4;
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unsigned long long Reserved7RHA[11];
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unsigned long long RcvHdrTailAddr0;
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unsigned long long RcvHdrTailAddr1;
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unsigned long long RcvHdrTailAddr2;
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unsigned long long RcvHdrTailAddr3;
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unsigned long long RcvHdrTailAddr4;
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unsigned long long Reserved8RHTA[11];
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unsigned long long Reserved9SW[8];
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unsigned long long SerdesConfig0;
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unsigned long long SerdesConfig1;
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unsigned long long SerdesStatus;
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unsigned long long XGXSConfig;
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unsigned long long IBPLLCfg;
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unsigned long long Reserved10SW2[3];
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unsigned long long PCIEQ0SerdesConfig0;
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unsigned long long PCIEQ0SerdesConfig1;
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unsigned long long PCIEQ0SerdesStatus;
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unsigned long long Reserved11;
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unsigned long long PCIEQ1SerdesConfig0;
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unsigned long long PCIEQ1SerdesConfig1;
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unsigned long long PCIEQ1SerdesStatus;
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unsigned long long Reserved12;
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};
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#define IPATH_KREG_OFFSET(field) (offsetof(struct \
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_infinipath_do_not_use_kernel_regs, field) / sizeof(u64))
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#define IPATH_CREG_OFFSET(field) (offsetof( \
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struct infinipath_counters, field) / sizeof(u64))
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static const struct ipath_kregs ipath_pe_kregs = {
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.kr_control = IPATH_KREG_OFFSET(Control),
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.kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase),
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.kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect),
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.kr_errorclear = IPATH_KREG_OFFSET(ErrorClear),
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.kr_errormask = IPATH_KREG_OFFSET(ErrorMask),
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.kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus),
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.kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl),
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.kr_extstatus = IPATH_KREG_OFFSET(ExtStatus),
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.kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear),
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.kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask),
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.kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut),
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.kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus),
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.kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl),
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.kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear),
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.kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask),
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.kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus),
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.kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl),
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.kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus),
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.kr_intblocked = IPATH_KREG_OFFSET(IntBlocked),
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.kr_intclear = IPATH_KREG_OFFSET(IntClear),
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.kr_intmask = IPATH_KREG_OFFSET(IntMask),
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.kr_intstatus = IPATH_KREG_OFFSET(IntStatus),
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.kr_mdio = IPATH_KREG_OFFSET(MDIO),
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.kr_pagealign = IPATH_KREG_OFFSET(PageAlign),
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.kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey),
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.kr_portcnt = IPATH_KREG_OFFSET(PortCnt),
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.kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP),
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.kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase),
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.kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize),
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.kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl),
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.kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase),
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.kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt),
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.kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt),
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.kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize),
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.kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize),
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.kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase),
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.kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize),
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.kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase),
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.kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt),
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.kr_revision = IPATH_KREG_OFFSET(Revision),
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.kr_scratch = IPATH_KREG_OFFSET(Scratch),
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.kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError),
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.kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl),
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.kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr),
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.kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase),
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.kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt),
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.kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize),
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.kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase),
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.kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase),
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.kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize),
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.kr_userregbase = IPATH_KREG_OFFSET(UserRegBase),
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.kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0),
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.kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1),
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.kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus),
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.kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig),
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.kr_ibpllcfg = IPATH_KREG_OFFSET(IBPLLCfg),
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/*
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* These should not be used directly via ipath_read_kreg64(),
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* use them with ipath_read_kreg64_port()
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*/
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.kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0),
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.kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0),
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/* The rcvpktled register controls one of the debug port signals, so
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* a packet activity LED can be connected to it. */
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.kr_rcvpktledcnt = IPATH_KREG_OFFSET(RcvPktLEDCnt),
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.kr_pcierbuftestreg0 = IPATH_KREG_OFFSET(PCIeRBufTestReg0),
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.kr_pcierbuftestreg1 = IPATH_KREG_OFFSET(PCIeRBufTestReg1),
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.kr_pcieq0serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig0),
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.kr_pcieq0serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig1),
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.kr_pcieq0serdesstatus = IPATH_KREG_OFFSET(PCIEQ0SerdesStatus),
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.kr_pcieq1serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig0),
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.kr_pcieq1serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig1),
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.kr_pcieq1serdesstatus = IPATH_KREG_OFFSET(PCIEQ1SerdesStatus)
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};
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static const struct ipath_cregs ipath_pe_cregs = {
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.cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt),
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.cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt),
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.cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt),
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.cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt),
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.cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt),
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.cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt),
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.cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt),
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.cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt),
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.cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt),
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.cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt),
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.cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt),
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.cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt),
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.cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt),
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.cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt),
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.cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt),
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.cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt),
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.cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt),
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.cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt),
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.cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt),
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.cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt),
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.cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt),
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.cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt),
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.cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt),
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.cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt),
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.cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt),
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.cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt),
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.cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt),
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.cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt),
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.cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt),
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.cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt),
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.cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt),
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.cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt),
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.cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt)
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};
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/* kr_intstatus, kr_intclear, kr_intmask bits */
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#define INFINIPATH_I_RCVURG_MASK ((1U<<5)-1)
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#define INFINIPATH_I_RCVAVAIL_MASK ((1U<<5)-1)
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/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */
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#define INFINIPATH_HWE_PCIEMEMPARITYERR_MASK 0x000000000000003fULL
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#define INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT 0
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#define INFINIPATH_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL
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#define INFINIPATH_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL
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#define INFINIPATH_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL
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#define INFINIPATH_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL
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#define INFINIPATH_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL
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#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL
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#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL
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#define INFINIPATH_HWE_PCIE1PLLFAILED 0x0400000000000000ULL
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#define INFINIPATH_HWE_PCIE0PLLFAILED 0x0800000000000000ULL
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#define INFINIPATH_HWE_SERDESPLLFAILED 0x1000000000000000ULL
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/* kr_extstatus bits */
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#define INFINIPATH_EXTS_FREQSEL 0x2
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#define INFINIPATH_EXTS_SERDESSEL 0x4
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#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000
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#define INFINIPATH_EXTS_MEMBIST_FOUND 0x0000000000008000
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#define _IPATH_GPIO_SDA_NUM 1
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#define _IPATH_GPIO_SCL_NUM 0
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#define IPATH_GPIO_SDA (1ULL << \
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(_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT))
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#define IPATH_GPIO_SCL (1ULL << \
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(_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT))
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/*
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* Rev2 silicon allows suppressing check for ArmLaunch errors.
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* this can speed up short packet sends on systems that do
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* not guaranteee write-order.
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*/
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#define INFINIPATH_XGXS_SUPPRESS_ARMLAUNCH_ERR (1ULL<<63)
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/* 6120 specific hardware errors... */
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static const struct ipath_hwerror_msgs ipath_6120_hwerror_msgs[] = {
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INFINIPATH_HWE_MSG(PCIEPOISONEDTLP, "PCIe Poisoned TLP"),
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INFINIPATH_HWE_MSG(PCIECPLTIMEOUT, "PCIe completion timeout"),
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/*
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* In practice, it's unlikely wthat we'll see PCIe PLL, or bus
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* parity or memory parity error failures, because most likely we
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* won't be able to talk to the core of the chip. Nonetheless, we
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* might see them, if they are in parts of the PCIe core that aren't
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* essential.
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*/
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INFINIPATH_HWE_MSG(PCIE1PLLFAILED, "PCIePLL1"),
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INFINIPATH_HWE_MSG(PCIE0PLLFAILED, "PCIePLL0"),
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INFINIPATH_HWE_MSG(PCIEBUSPARITYXTLH, "PCIe XTLH core parity"),
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INFINIPATH_HWE_MSG(PCIEBUSPARITYXADM, "PCIe ADM TX core parity"),
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INFINIPATH_HWE_MSG(PCIEBUSPARITYRADM, "PCIe ADM RX core parity"),
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INFINIPATH_HWE_MSG(RXDSYNCMEMPARITYERR, "Rx Dsync"),
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INFINIPATH_HWE_MSG(SERDESPLLFAILED, "SerDes PLL"),
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};
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/**
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* ipath_pe_handle_hwerrors - display hardware errors.
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* @dd: the infinipath device
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* @msg: the output buffer
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* @msgl: the size of the output buffer
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*
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* Use same msg buffer as regular errors to avoid excessive stack
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* use. Most hardware errors are catastrophic, but for right now,
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* we'll print them and continue. We reuse the same message buffer as
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* ipath_handle_errors() to avoid excessive stack usage.
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*/
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static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg,
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size_t msgl)
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{
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ipath_err_t hwerrs;
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u32 bits, ctrl;
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int isfatal = 0;
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char bitsmsg[64];
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hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus);
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if (!hwerrs) {
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/*
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* better than printing cofusing messages
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* This seems to be related to clearing the crc error, or
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* the pll error during init.
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*/
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ipath_cdbg(VERBOSE, "Called but no hardware errors set\n");
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return;
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} else if (hwerrs == ~0ULL) {
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ipath_dev_err(dd, "Read of hardware error status failed "
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"(all bits set); ignoring\n");
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return;
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}
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ipath_stats.sps_hwerrs++;
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/* Always clear the error status register, except MEMBISTFAIL,
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* regardless of whether we continue or stop using the chip.
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* We want that set so we know it failed, even across driver reload.
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* We'll still ignore it in the hwerrmask. We do this partly for
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* diagnostics, but also for support */
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ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear,
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hwerrs&~INFINIPATH_HWE_MEMBISTFAILED);
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hwerrs &= dd->ipath_hwerrmask;
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/*
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* make sure we get this much out, unless told to be quiet,
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* or it's occurred within the last 5 seconds
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*/
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if ((hwerrs & ~(dd->ipath_lasthwerror |
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((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF |
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INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC)
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<< INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT))) ||
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|
(ipath_debug & __IPATH_VERBDBG))
|
|
dev_info(&dd->pcidev->dev, "Hardware error: hwerr=0x%llx "
|
|
"(cleared)\n", (unsigned long long) hwerrs);
|
|
dd->ipath_lasthwerror |= hwerrs;
|
|
|
|
if (hwerrs & ~dd->ipath_hwe_bitsextant)
|
|
ipath_dev_err(dd, "hwerror interrupt with unknown errors "
|
|
"%llx set\n", (unsigned long long)
|
|
(hwerrs & ~dd->ipath_hwe_bitsextant));
|
|
|
|
ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control);
|
|
if (ctrl & INFINIPATH_C_FREEZEMODE) {
|
|
/*
|
|
* parity errors in send memory are recoverable,
|
|
* just cancel the send (if indicated in * sendbuffererror),
|
|
* count the occurrence, unfreeze (if no other handled
|
|
* hardware error bits are set), and continue. They can
|
|
* occur if a processor speculative read is done to the PIO
|
|
* buffer while we are sending a packet, for example.
|
|
*/
|
|
if (hwerrs & ((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF |
|
|
INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC)
|
|
<< INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)) {
|
|
ipath_stats.sps_txeparity++;
|
|
ipath_dbg("Recovering from TXE parity error (%llu), "
|
|
"hwerrstatus=%llx\n",
|
|
(unsigned long long) ipath_stats.sps_txeparity,
|
|
(unsigned long long) hwerrs);
|
|
ipath_disarm_senderrbufs(dd);
|
|
hwerrs &= ~((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF |
|
|
INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC)
|
|
<< INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT);
|
|
if (!hwerrs) { /* else leave in freeze mode */
|
|
ipath_write_kreg(dd,
|
|
dd->ipath_kregs->kr_control,
|
|
dd->ipath_control);
|
|
return;
|
|
}
|
|
}
|
|
if (hwerrs) {
|
|
/*
|
|
* if any set that we aren't ignoring only make the
|
|
* complaint once, in case it's stuck or recurring,
|
|
* and we get here multiple times
|
|
*/
|
|
if (dd->ipath_flags & IPATH_INITTED) {
|
|
ipath_dev_err(dd, "Fatal Hardware Error (freeze "
|
|
"mode), no longer usable, SN %.16s\n",
|
|
dd->ipath_serial);
|
|
isfatal = 1;
|
|
}
|
|
/*
|
|
* Mark as having had an error for driver, and also
|
|
* for /sys and status word mapped to user programs.
|
|
* This marks unit as not usable, until reset
|
|
*/
|
|
*dd->ipath_statusp &= ~IPATH_STATUS_IB_READY;
|
|
*dd->ipath_statusp |= IPATH_STATUS_HWERROR;
|
|
dd->ipath_flags &= ~IPATH_INITTED;
|
|
} else {
|
|
ipath_dbg("Clearing freezemode on ignored hardware "
|
|
"error\n");
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
|
|
dd->ipath_control);
|
|
}
|
|
}
|
|
|
|
*msg = '\0';
|
|
|
|
if (hwerrs & INFINIPATH_HWE_MEMBISTFAILED) {
|
|
strlcat(msg, "[Memory BIST test failed, InfiniPath hardware unusable]",
|
|
msgl);
|
|
/* ignore from now on, so disable until driver reloaded */
|
|
*dd->ipath_statusp |= IPATH_STATUS_HWERROR;
|
|
dd->ipath_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask,
|
|
dd->ipath_hwerrmask);
|
|
}
|
|
|
|
ipath_format_hwerrors(hwerrs,
|
|
ipath_6120_hwerror_msgs,
|
|
sizeof(ipath_6120_hwerror_msgs)/
|
|
sizeof(ipath_6120_hwerror_msgs[0]),
|
|
msg, msgl);
|
|
|
|
if (hwerrs & (INFINIPATH_HWE_PCIEMEMPARITYERR_MASK
|
|
<< INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT)) {
|
|
bits = (u32) ((hwerrs >>
|
|
INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) &
|
|
INFINIPATH_HWE_PCIEMEMPARITYERR_MASK);
|
|
snprintf(bitsmsg, sizeof bitsmsg,
|
|
"[PCIe Mem Parity Errs %x] ", bits);
|
|
strlcat(msg, bitsmsg, msgl);
|
|
}
|
|
|
|
#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \
|
|
INFINIPATH_HWE_COREPLL_RFSLIP )
|
|
|
|
if (hwerrs & _IPATH_PLL_FAIL) {
|
|
snprintf(bitsmsg, sizeof bitsmsg,
|
|
"[PLL failed (%llx), InfiniPath hardware unusable]",
|
|
(unsigned long long) hwerrs & _IPATH_PLL_FAIL);
|
|
strlcat(msg, bitsmsg, msgl);
|
|
/* ignore from now on, so disable until driver reloaded */
|
|
dd->ipath_hwerrmask &= ~(hwerrs & _IPATH_PLL_FAIL);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask,
|
|
dd->ipath_hwerrmask);
|
|
}
|
|
|
|
if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) {
|
|
/*
|
|
* If it occurs, it is left masked since the eternal
|
|
* interface is unused
|
|
*/
|
|
dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask,
|
|
dd->ipath_hwerrmask);
|
|
}
|
|
|
|
ipath_dev_err(dd, "%s hardware error\n", msg);
|
|
if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) {
|
|
/*
|
|
* for /sys status file ; if no trailing } is copied, we'll
|
|
* know it was truncated.
|
|
*/
|
|
snprintf(dd->ipath_freezemsg, dd->ipath_freezelen,
|
|
"{%s}", msg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_boardname - fill in the board name
|
|
* @dd: the infinipath device
|
|
* @name: the output buffer
|
|
* @namelen: the size of the output buffer
|
|
*
|
|
* info is based on the board revision register
|
|
*/
|
|
static int ipath_pe_boardname(struct ipath_devdata *dd, char *name,
|
|
size_t namelen)
|
|
{
|
|
char *n = NULL;
|
|
u8 boardrev = dd->ipath_boardrev;
|
|
int ret;
|
|
|
|
switch (boardrev) {
|
|
case 0:
|
|
n = "InfiniPath_Emulation";
|
|
break;
|
|
case 1:
|
|
n = "InfiniPath_QLE7140-Bringup";
|
|
break;
|
|
case 2:
|
|
n = "InfiniPath_QLE7140";
|
|
break;
|
|
case 3:
|
|
n = "InfiniPath_QMI7140";
|
|
break;
|
|
case 4:
|
|
n = "InfiniPath_QEM7140";
|
|
break;
|
|
case 5:
|
|
n = "InfiniPath_QMH7140";
|
|
break;
|
|
case 6:
|
|
n = "InfiniPath_QLE7142";
|
|
break;
|
|
default:
|
|
ipath_dev_err(dd,
|
|
"Don't yet know about board with ID %u\n",
|
|
boardrev);
|
|
snprintf(name, namelen, "Unknown_InfiniPath_PCIe_%u",
|
|
boardrev);
|
|
break;
|
|
}
|
|
if (n)
|
|
snprintf(name, namelen, "%s", n);
|
|
|
|
if (dd->ipath_majrev != 4 || !dd->ipath_minrev || dd->ipath_minrev>2) {
|
|
ipath_dev_err(dd, "Unsupported InfiniPath hardware revision %u.%u!\n",
|
|
dd->ipath_majrev, dd->ipath_minrev);
|
|
ret = 1;
|
|
} else
|
|
ret = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_init_hwerrors - enable hardware errors
|
|
* @dd: the infinipath device
|
|
*
|
|
* now that we have finished initializing everything that might reasonably
|
|
* cause a hardware error, and cleared those errors bits as they occur,
|
|
* we can enable hardware errors in the mask (potentially enabling
|
|
* freeze mode), and enable hardware errors as errors (along with
|
|
* everything else) in errormask
|
|
*/
|
|
static void ipath_pe_init_hwerrors(struct ipath_devdata *dd)
|
|
{
|
|
ipath_err_t val;
|
|
u64 extsval;
|
|
|
|
extsval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus);
|
|
|
|
if (!(extsval & INFINIPATH_EXTS_MEMBIST_ENDTEST))
|
|
ipath_dev_err(dd, "MemBIST did not complete!\n");
|
|
|
|
val = ~0ULL; /* barring bugs, all hwerrors become interrupts, */
|
|
|
|
if (!dd->ipath_boardrev) // no PLL for Emulator
|
|
val &= ~INFINIPATH_HWE_SERDESPLLFAILED;
|
|
|
|
if (dd->ipath_minrev < 2) {
|
|
/* workaround bug 9460 in internal interface bus parity
|
|
* checking. Fixed (HW bug 9490) in Rev2.
|
|
*/
|
|
val &= ~INFINIPATH_HWE_PCIEBUSPARITYRADM;
|
|
}
|
|
dd->ipath_hwerrmask = val;
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_bringup_serdes - bring up the serdes
|
|
* @dd: the infinipath device
|
|
*/
|
|
static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
|
|
{
|
|
u64 val, config1, prev_val;
|
|
int ret = 0;
|
|
|
|
ipath_dbg("Trying to bringup serdes\n");
|
|
|
|
if (ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus) &
|
|
INFINIPATH_HWE_SERDESPLLFAILED) {
|
|
ipath_dbg("At start, serdes PLL failed bit set "
|
|
"in hwerrstatus, clearing and continuing\n");
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear,
|
|
INFINIPATH_HWE_SERDESPLLFAILED);
|
|
}
|
|
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0);
|
|
config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1);
|
|
|
|
ipath_cdbg(VERBOSE, "SerDes status config0=%llx config1=%llx, "
|
|
"xgxsconfig %llx\n", (unsigned long long) val,
|
|
(unsigned long long) config1, (unsigned long long)
|
|
ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig));
|
|
|
|
/*
|
|
* Force reset on, also set rxdetect enable. Must do before reading
|
|
* serdesstatus at least for simulation, or some of the bits in
|
|
* serdes status will come back as undefined and cause simulation
|
|
* failures
|
|
*/
|
|
val |= INFINIPATH_SERDC0_RESET_PLL | INFINIPATH_SERDC0_RXDETECT_EN
|
|
| INFINIPATH_SERDC0_L1PWR_DN;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
|
|
/* be sure chip saw it */
|
|
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
|
|
udelay(5); /* need pll reset set at least for a bit */
|
|
/*
|
|
* after PLL is reset, set the per-lane Resets and TxIdle and
|
|
* clear the PLL reset and rxdetect (to get falling edge).
|
|
* Leave L1PWR bits set (permanently)
|
|
*/
|
|
val &= ~(INFINIPATH_SERDC0_RXDETECT_EN | INFINIPATH_SERDC0_RESET_PLL
|
|
| INFINIPATH_SERDC0_L1PWR_DN);
|
|
val |= INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE;
|
|
ipath_cdbg(VERBOSE, "Clearing pll reset and setting lane resets "
|
|
"and txidle (%llx)\n", (unsigned long long) val);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
|
|
/* be sure chip saw it */
|
|
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
|
|
/* need PLL reset clear for at least 11 usec before lane
|
|
* resets cleared; give it a few more to be sure */
|
|
udelay(15);
|
|
val &= ~(INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE);
|
|
|
|
ipath_cdbg(VERBOSE, "Clearing lane resets and txidle "
|
|
"(writing %llx)\n", (unsigned long long) val);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
|
|
/* be sure chip saw it */
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
|
|
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig);
|
|
prev_val = val;
|
|
if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) &
|
|
INFINIPATH_XGXS_MDIOADDR_MASK) != 3) {
|
|
val &=
|
|
~(INFINIPATH_XGXS_MDIOADDR_MASK <<
|
|
INFINIPATH_XGXS_MDIOADDR_SHIFT);
|
|
/* MDIO address 3 */
|
|
val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT;
|
|
}
|
|
if (val & INFINIPATH_XGXS_RESET) {
|
|
val &= ~INFINIPATH_XGXS_RESET;
|
|
}
|
|
if (((val >> INFINIPATH_XGXS_RX_POL_SHIFT) &
|
|
INFINIPATH_XGXS_RX_POL_MASK) != dd->ipath_rx_pol_inv ) {
|
|
/* need to compensate for Tx inversion in partner */
|
|
val &= ~(INFINIPATH_XGXS_RX_POL_MASK <<
|
|
INFINIPATH_XGXS_RX_POL_SHIFT);
|
|
val |= dd->ipath_rx_pol_inv <<
|
|
INFINIPATH_XGXS_RX_POL_SHIFT;
|
|
}
|
|
if (dd->ipath_minrev >= 2) {
|
|
/* Rev 2. can tolerate multiple writes to PBC, and
|
|
* allowing them can provide lower latency on some
|
|
* CPUs, but this feature is off by default, only
|
|
* turned on by setting D63 of XGXSconfig reg.
|
|
* May want to make this conditional more
|
|
* fine-grained in future. This is not exactly
|
|
* related to XGXS, but where the bit ended up.
|
|
*/
|
|
val |= INFINIPATH_XGXS_SUPPRESS_ARMLAUNCH_ERR;
|
|
}
|
|
if (val != prev_val)
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val);
|
|
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0);
|
|
|
|
/* clear current and de-emphasis bits */
|
|
config1 &= ~0x0ffffffff00ULL;
|
|
/* set current to 20ma */
|
|
config1 |= 0x00000000000ULL;
|
|
/* set de-emphasis to -5.68dB */
|
|
config1 |= 0x0cccc000000ULL;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig1, config1);
|
|
|
|
ipath_cdbg(VERBOSE, "done: SerDes status config0=%llx "
|
|
"config1=%llx, sstatus=%llx xgxs=%llx\n",
|
|
(unsigned long long) val, (unsigned long long) config1,
|
|
(unsigned long long)
|
|
ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus),
|
|
(unsigned long long)
|
|
ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig));
|
|
|
|
if (!ipath_waitfor_mdio_cmdready(dd)) {
|
|
ipath_write_kreg(
|
|
dd, dd->ipath_kregs->kr_mdio,
|
|
ipath_mdio_req(IPATH_MDIO_CMD_READ, 31,
|
|
IPATH_MDIO_CTRL_XGXS_REG_8, 0));
|
|
if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio,
|
|
IPATH_MDIO_DATAVALID, &val))
|
|
ipath_dbg("Never got MDIO data for XGXS "
|
|
"status read\n");
|
|
else
|
|
ipath_cdbg(VERBOSE, "MDIO Read reg8, "
|
|
"'bank' 31 %x\n", (u32) val);
|
|
} else
|
|
ipath_dbg("Never got MDIO cmdready for XGXS status read\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_quiet_serdes - set serdes to txidle
|
|
* @dd: the infinipath device
|
|
* Called when driver is being unloaded
|
|
*/
|
|
static void ipath_pe_quiet_serdes(struct ipath_devdata *dd)
|
|
{
|
|
u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0);
|
|
|
|
val |= INFINIPATH_SERDC0_TXIDLE;
|
|
ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n",
|
|
(unsigned long long) val);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
|
|
}
|
|
|
|
static int ipath_pe_intconfig(struct ipath_devdata *dd)
|
|
{
|
|
u64 val;
|
|
u32 chiprev;
|
|
|
|
/*
|
|
* If the chip supports added error indication via GPIO pins,
|
|
* enable interrupts on those bits so the interrupt routine
|
|
* can count the events. Also set flag so interrupt routine
|
|
* can know they are expected.
|
|
*/
|
|
chiprev = dd->ipath_revision >> INFINIPATH_R_CHIPREVMINOR_SHIFT;
|
|
if ((chiprev & INFINIPATH_R_CHIPREVMINOR_MASK) > 1) {
|
|
/* Rev2+ reports extra errors via internal GPIO pins */
|
|
dd->ipath_flags |= IPATH_GPIO_ERRINTRS;
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_gpio_mask);
|
|
val |= IPATH_GPIO_ERRINTR_MASK;
|
|
ipath_write_kreg( dd, dd->ipath_kregs->kr_gpio_mask, val);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ipath_setup_pe_setextled - set the state of the two external LEDs
|
|
* @dd: the infinipath device
|
|
* @lst: the L state
|
|
* @ltst: the LT state
|
|
|
|
* These LEDs indicate the physical and logical state of IB link.
|
|
* For this chip (at least with recommended board pinouts), LED1
|
|
* is Yellow (logical state) and LED2 is Green (physical state),
|
|
*
|
|
* Note: We try to match the Mellanox HCA LED behavior as best
|
|
* we can. Green indicates physical link state is OK (something is
|
|
* plugged in, and we can train).
|
|
* Amber indicates the link is logically up (ACTIVE).
|
|
* Mellanox further blinks the amber LED to indicate data packet
|
|
* activity, but we have no hardware support for that, so it would
|
|
* require waking up every 10-20 msecs and checking the counters
|
|
* on the chip, and then turning the LED off if appropriate. That's
|
|
* visible overhead, so not something we will do.
|
|
*
|
|
*/
|
|
static void ipath_setup_pe_setextled(struct ipath_devdata *dd, u64 lst,
|
|
u64 ltst)
|
|
{
|
|
u64 extctl;
|
|
|
|
/* the diags use the LED to indicate diag info, so we leave
|
|
* the external LED alone when the diags are running */
|
|
if (ipath_diag_inuse)
|
|
return;
|
|
|
|
extctl = dd->ipath_extctrl & ~(INFINIPATH_EXTC_LED1PRIPORT_ON |
|
|
INFINIPATH_EXTC_LED2PRIPORT_ON);
|
|
|
|
if (ltst & INFINIPATH_IBCS_LT_STATE_LINKUP)
|
|
extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON;
|
|
if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE)
|
|
extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON;
|
|
dd->ipath_extctrl = extctl;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl);
|
|
}
|
|
|
|
/**
|
|
* ipath_setup_pe_cleanup - clean up any per-chip chip-specific stuff
|
|
* @dd: the infinipath device
|
|
*
|
|
* This is called during driver unload.
|
|
* We do the pci_disable_msi here, not in generic code, because it
|
|
* isn't used for the HT chips. If we do end up needing pci_enable_msi
|
|
* at some point in the future for HT, we'll move the call back
|
|
* into the main init_one code.
|
|
*/
|
|
static void ipath_setup_pe_cleanup(struct ipath_devdata *dd)
|
|
{
|
|
dd->ipath_msi_lo = 0; /* just in case unload fails */
|
|
pci_disable_msi(dd->pcidev);
|
|
}
|
|
|
|
/**
|
|
* ipath_setup_pe_config - setup PCIe config related stuff
|
|
* @dd: the infinipath device
|
|
* @pdev: the PCI device
|
|
*
|
|
* The pci_enable_msi() call will fail on systems with MSI quirks
|
|
* such as those with AMD8131, even if the device of interest is not
|
|
* attached to that device, (in the 2.6.13 - 2.6.15 kernels, at least, fixed
|
|
* late in 2.6.16).
|
|
* All that can be done is to edit the kernel source to remove the quirk
|
|
* check until that is fixed.
|
|
* We do not need to call enable_msi() for our HyperTransport chip,
|
|
* even though it uses MSI, and we want to avoid the quirk warning, so
|
|
* So we call enable_msi only for PCIe. If we do end up needing
|
|
* pci_enable_msi at some point in the future for HT, we'll move the
|
|
* call back into the main init_one code.
|
|
* We save the msi lo and hi values, so we can restore them after
|
|
* chip reset (the kernel PCI infrastructure doesn't yet handle that
|
|
* correctly).
|
|
*/
|
|
static int ipath_setup_pe_config(struct ipath_devdata *dd,
|
|
struct pci_dev *pdev)
|
|
{
|
|
int pos, ret;
|
|
|
|
dd->ipath_msi_lo = 0; /* used as a flag during reset processing */
|
|
ret = pci_enable_msi(dd->pcidev);
|
|
if (ret)
|
|
ipath_dev_err(dd, "pci_enable_msi failed: %d, "
|
|
"interrupts may not work\n", ret);
|
|
/* continue even if it fails, we may still be OK... */
|
|
dd->ipath_irq = pdev->irq;
|
|
|
|
if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) {
|
|
u16 control;
|
|
pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO,
|
|
&dd->ipath_msi_lo);
|
|
pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI,
|
|
&dd->ipath_msi_hi);
|
|
pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS,
|
|
&control);
|
|
/* now save the data (vector) info */
|
|
pci_read_config_word(dd->pcidev,
|
|
pos + ((control & PCI_MSI_FLAGS_64BIT)
|
|
? 12 : 8),
|
|
&dd->ipath_msi_data);
|
|
ipath_cdbg(VERBOSE, "Read msi data 0x%x from config offset "
|
|
"0x%x, control=0x%x\n", dd->ipath_msi_data,
|
|
pos + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
|
|
control);
|
|
/* we save the cachelinesize also, although it doesn't
|
|
* really matter */
|
|
pci_read_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE,
|
|
&dd->ipath_pci_cacheline);
|
|
} else
|
|
ipath_dev_err(dd, "Can't find MSI capability, "
|
|
"can't save MSI settings for reset\n");
|
|
if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_EXP))) {
|
|
u16 linkstat;
|
|
pci_read_config_word(dd->pcidev, pos + PCI_EXP_LNKSTA,
|
|
&linkstat);
|
|
linkstat >>= 4;
|
|
linkstat &= 0x1f;
|
|
if (linkstat != 8)
|
|
ipath_dev_err(dd, "PCIe width %u, "
|
|
"performance reduced\n", linkstat);
|
|
}
|
|
else
|
|
ipath_dev_err(dd, "Can't find PCI Express "
|
|
"capability!\n");
|
|
return 0;
|
|
}
|
|
|
|
static void ipath_init_pe_variables(struct ipath_devdata *dd)
|
|
{
|
|
/*
|
|
* bits for selecting i2c direction and values,
|
|
* used for I2C serial flash
|
|
*/
|
|
dd->ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM;
|
|
dd->ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM;
|
|
dd->ipath_gpio_sda = IPATH_GPIO_SDA;
|
|
dd->ipath_gpio_scl = IPATH_GPIO_SCL;
|
|
|
|
/* variables for sanity checking interrupt and errors */
|
|
dd->ipath_hwe_bitsextant =
|
|
(INFINIPATH_HWE_RXEMEMPARITYERR_MASK <<
|
|
INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) |
|
|
(INFINIPATH_HWE_TXEMEMPARITYERR_MASK <<
|
|
INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) |
|
|
(INFINIPATH_HWE_PCIEMEMPARITYERR_MASK <<
|
|
INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) |
|
|
INFINIPATH_HWE_PCIE1PLLFAILED |
|
|
INFINIPATH_HWE_PCIE0PLLFAILED |
|
|
INFINIPATH_HWE_PCIEPOISONEDTLP |
|
|
INFINIPATH_HWE_PCIECPLTIMEOUT |
|
|
INFINIPATH_HWE_PCIEBUSPARITYXTLH |
|
|
INFINIPATH_HWE_PCIEBUSPARITYXADM |
|
|
INFINIPATH_HWE_PCIEBUSPARITYRADM |
|
|
INFINIPATH_HWE_MEMBISTFAILED |
|
|
INFINIPATH_HWE_COREPLL_FBSLIP |
|
|
INFINIPATH_HWE_COREPLL_RFSLIP |
|
|
INFINIPATH_HWE_SERDESPLLFAILED |
|
|
INFINIPATH_HWE_IBCBUSTOSPCPARITYERR |
|
|
INFINIPATH_HWE_IBCBUSFRSPCPARITYERR;
|
|
dd->ipath_i_bitsextant =
|
|
(INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) |
|
|
(INFINIPATH_I_RCVAVAIL_MASK <<
|
|
INFINIPATH_I_RCVAVAIL_SHIFT) |
|
|
INFINIPATH_I_ERROR | INFINIPATH_I_SPIOSENT |
|
|
INFINIPATH_I_SPIOBUFAVAIL | INFINIPATH_I_GPIO;
|
|
dd->ipath_e_bitsextant =
|
|
INFINIPATH_E_RFORMATERR | INFINIPATH_E_RVCRC |
|
|
INFINIPATH_E_RICRC | INFINIPATH_E_RMINPKTLEN |
|
|
INFINIPATH_E_RMAXPKTLEN | INFINIPATH_E_RLONGPKTLEN |
|
|
INFINIPATH_E_RSHORTPKTLEN | INFINIPATH_E_RUNEXPCHAR |
|
|
INFINIPATH_E_RUNSUPVL | INFINIPATH_E_REBP |
|
|
INFINIPATH_E_RIBFLOW | INFINIPATH_E_RBADVERSION |
|
|
INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL |
|
|
INFINIPATH_E_RBADTID | INFINIPATH_E_RHDRLEN |
|
|
INFINIPATH_E_RHDR | INFINIPATH_E_RIBLOSTLINK |
|
|
INFINIPATH_E_SMINPKTLEN | INFINIPATH_E_SMAXPKTLEN |
|
|
INFINIPATH_E_SUNDERRUN | INFINIPATH_E_SPKTLEN |
|
|
INFINIPATH_E_SDROPPEDSMPPKT | INFINIPATH_E_SDROPPEDDATAPKT |
|
|
INFINIPATH_E_SPIOARMLAUNCH | INFINIPATH_E_SUNEXPERRPKTNUM |
|
|
INFINIPATH_E_SUNSUPVL | INFINIPATH_E_IBSTATUSCHANGED |
|
|
INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET |
|
|
INFINIPATH_E_HARDWARE;
|
|
|
|
dd->ipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK;
|
|
dd->ipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK;
|
|
}
|
|
|
|
/* setup the MSI stuff again after a reset. I'd like to just call
|
|
* pci_enable_msi() and request_irq() again, but when I do that,
|
|
* the MSI enable bit doesn't get set in the command word, and
|
|
* we switch to to a different interrupt vector, which is confusing,
|
|
* so I instead just do it all inline. Perhaps somehow can tie this
|
|
* into the PCIe hotplug support at some point
|
|
* Note, because I'm doing it all here, I don't call pci_disable_msi()
|
|
* or free_irq() at the start of ipath_setup_pe_reset().
|
|
*/
|
|
static int ipath_reinit_msi(struct ipath_devdata *dd)
|
|
{
|
|
int pos;
|
|
u16 control;
|
|
int ret;
|
|
|
|
if (!dd->ipath_msi_lo) {
|
|
dev_info(&dd->pcidev->dev, "Can't restore MSI config, "
|
|
"initial setup failed?\n");
|
|
ret = 0;
|
|
goto bail;
|
|
}
|
|
|
|
if (!(pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) {
|
|
ipath_dev_err(dd, "Can't find MSI capability, "
|
|
"can't restore MSI settings\n");
|
|
ret = 0;
|
|
goto bail;
|
|
}
|
|
ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n",
|
|
dd->ipath_msi_lo, pos + PCI_MSI_ADDRESS_LO);
|
|
pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO,
|
|
dd->ipath_msi_lo);
|
|
ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n",
|
|
dd->ipath_msi_hi, pos + PCI_MSI_ADDRESS_HI);
|
|
pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI,
|
|
dd->ipath_msi_hi);
|
|
pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control);
|
|
if (!(control & PCI_MSI_FLAGS_ENABLE)) {
|
|
ipath_cdbg(VERBOSE, "MSI control at off %x was %x, "
|
|
"setting MSI enable (%x)\n", pos + PCI_MSI_FLAGS,
|
|
control, control | PCI_MSI_FLAGS_ENABLE);
|
|
control |= PCI_MSI_FLAGS_ENABLE;
|
|
pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS,
|
|
control);
|
|
}
|
|
/* now rewrite the data (vector) info */
|
|
pci_write_config_word(dd->pcidev, pos +
|
|
((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
|
|
dd->ipath_msi_data);
|
|
/* we restore the cachelinesize also, although it doesn't really
|
|
* matter */
|
|
pci_write_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE,
|
|
dd->ipath_pci_cacheline);
|
|
/* and now set the pci master bit again */
|
|
pci_set_master(dd->pcidev);
|
|
ret = 1;
|
|
|
|
bail:
|
|
return ret;
|
|
}
|
|
|
|
/* This routine sleeps, so it can only be called from user context, not
|
|
* from interrupt context. If we need interrupt context, we can split
|
|
* it into two routines.
|
|
*/
|
|
static int ipath_setup_pe_reset(struct ipath_devdata *dd)
|
|
{
|
|
u64 val;
|
|
int i;
|
|
int ret;
|
|
|
|
/* Use ERROR so it shows up in logs, etc. */
|
|
ipath_dev_err(dd, "Resetting InfiniPath unit %u\n", dd->ipath_unit);
|
|
/* keep chip from being accessed in a few places */
|
|
dd->ipath_flags &= ~(IPATH_INITTED|IPATH_PRESENT);
|
|
val = dd->ipath_control | INFINIPATH_C_RESET;
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_control, val);
|
|
mb();
|
|
|
|
for (i = 1; i <= 5; i++) {
|
|
int r;
|
|
/* allow MBIST, etc. to complete; longer on each retry.
|
|
* We sometimes get machine checks from bus timeout if no
|
|
* response, so for now, make it *really* long.
|
|
*/
|
|
msleep(1000 + (1 + i) * 2000);
|
|
if ((r =
|
|
pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_0,
|
|
dd->ipath_pcibar0)))
|
|
ipath_dev_err(dd, "rewrite of BAR0 failed: %d\n",
|
|
r);
|
|
if ((r =
|
|
pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_1,
|
|
dd->ipath_pcibar1)))
|
|
ipath_dev_err(dd, "rewrite of BAR1 failed: %d\n",
|
|
r);
|
|
/* now re-enable memory access */
|
|
if ((r = pci_enable_device(dd->pcidev)))
|
|
ipath_dev_err(dd, "pci_enable_device failed after "
|
|
"reset: %d\n", r);
|
|
/* whether it worked or not, mark as present, again */
|
|
dd->ipath_flags |= IPATH_PRESENT;
|
|
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_revision);
|
|
if (val == dd->ipath_revision) {
|
|
ipath_cdbg(VERBOSE, "Got matching revision "
|
|
"register %llx on try %d\n",
|
|
(unsigned long long) val, i);
|
|
ret = ipath_reinit_msi(dd);
|
|
goto bail;
|
|
}
|
|
/* Probably getting -1 back */
|
|
ipath_dbg("Didn't get expected revision register, "
|
|
"got %llx, try %d\n", (unsigned long long) val,
|
|
i + 1);
|
|
}
|
|
ret = 0; /* failed */
|
|
|
|
bail:
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_put_tid - write a TID in chip
|
|
* @dd: the infinipath device
|
|
* @tidptr: pointer to the expected TID (in chip) to udpate
|
|
* @tidtype: 0 for eager, 1 for expected
|
|
* @pa: physical address of in memory buffer; ipath_tidinvalid if freeing
|
|
*
|
|
* This exists as a separate routine to allow for special locking etc.
|
|
* It's used for both the full cleanup on exit, as well as the normal
|
|
* setup and teardown.
|
|
*/
|
|
static void ipath_pe_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr,
|
|
u32 type, unsigned long pa)
|
|
{
|
|
u32 __iomem *tidp32 = (u32 __iomem *)tidptr;
|
|
unsigned long flags = 0; /* keep gcc quiet */
|
|
|
|
if (pa != dd->ipath_tidinvalid) {
|
|
if (pa & ((1U << 11) - 1)) {
|
|
dev_info(&dd->pcidev->dev, "BUG: physaddr %lx "
|
|
"not 4KB aligned!\n", pa);
|
|
return;
|
|
}
|
|
pa >>= 11;
|
|
/* paranoia check */
|
|
if (pa & (7<<29))
|
|
ipath_dev_err(dd,
|
|
"BUG: Physical page address 0x%lx "
|
|
"has bits set in 31-29\n", pa);
|
|
|
|
if (type == 0)
|
|
pa |= dd->ipath_tidtemplate;
|
|
else /* for now, always full 4KB page */
|
|
pa |= 2 << 29;
|
|
}
|
|
|
|
/* workaround chip bug 9437 by writing each TID twice
|
|
* and holding a spinlock around the writes, so they don't
|
|
* intermix with other TID (eager or expected) writes
|
|
* Unfortunately, this call can be done from interrupt level
|
|
* for the port 0 eager TIDs, so we have to use irqsave
|
|
*/
|
|
spin_lock_irqsave(&dd->ipath_tid_lock, flags);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xfeeddeaf);
|
|
if (dd->ipath_kregbase)
|
|
writel(pa, tidp32);
|
|
ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xdeadbeef);
|
|
mmiowb();
|
|
spin_unlock_irqrestore(&dd->ipath_tid_lock, flags);
|
|
}
|
|
/**
|
|
* ipath_pe_put_tid_2 - write a TID in chip, Revision 2 or higher
|
|
* @dd: the infinipath device
|
|
* @tidptr: pointer to the expected TID (in chip) to udpate
|
|
* @tidtype: 0 for eager, 1 for expected
|
|
* @pa: physical address of in memory buffer; ipath_tidinvalid if freeing
|
|
*
|
|
* This exists as a separate routine to allow for selection of the
|
|
* appropriate "flavor". The static calls in cleanup just use the
|
|
* revision-agnostic form, as they are not performance critical.
|
|
*/
|
|
static void ipath_pe_put_tid_2(struct ipath_devdata *dd, u64 __iomem *tidptr,
|
|
u32 type, unsigned long pa)
|
|
{
|
|
u32 __iomem *tidp32 = (u32 __iomem *)tidptr;
|
|
|
|
if (pa != dd->ipath_tidinvalid) {
|
|
if (pa & ((1U << 11) - 1)) {
|
|
dev_info(&dd->pcidev->dev, "BUG: physaddr %lx "
|
|
"not 2KB aligned!\n", pa);
|
|
return;
|
|
}
|
|
pa >>= 11;
|
|
/* paranoia check */
|
|
if (pa & (7<<29))
|
|
ipath_dev_err(dd,
|
|
"BUG: Physical page address 0x%lx "
|
|
"has bits set in 31-29\n", pa);
|
|
|
|
if (type == 0)
|
|
pa |= dd->ipath_tidtemplate;
|
|
else /* for now, always full 4KB page */
|
|
pa |= 2 << 29;
|
|
}
|
|
if (dd->ipath_kregbase)
|
|
writel(pa, tidp32);
|
|
mmiowb();
|
|
}
|
|
|
|
|
|
/**
|
|
* ipath_pe_clear_tid - clear all TID entries for a port, expected and eager
|
|
* @dd: the infinipath device
|
|
* @port: the port
|
|
*
|
|
* clear all TID entries for a port, expected and eager.
|
|
* Used from ipath_close(). On this chip, TIDs are only 32 bits,
|
|
* not 64, but they are still on 64 bit boundaries, so tidbase
|
|
* is declared as u64 * for the pointer math, even though we write 32 bits
|
|
*/
|
|
static void ipath_pe_clear_tids(struct ipath_devdata *dd, unsigned port)
|
|
{
|
|
u64 __iomem *tidbase;
|
|
unsigned long tidinv;
|
|
int i;
|
|
|
|
if (!dd->ipath_kregbase)
|
|
return;
|
|
|
|
ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port);
|
|
|
|
tidinv = dd->ipath_tidinvalid;
|
|
tidbase = (u64 __iomem *)
|
|
((char __iomem *)(dd->ipath_kregbase) +
|
|
dd->ipath_rcvtidbase +
|
|
port * dd->ipath_rcvtidcnt * sizeof(*tidbase));
|
|
|
|
for (i = 0; i < dd->ipath_rcvtidcnt; i++)
|
|
ipath_pe_put_tid(dd, &tidbase[i], 0, tidinv);
|
|
|
|
tidbase = (u64 __iomem *)
|
|
((char __iomem *)(dd->ipath_kregbase) +
|
|
dd->ipath_rcvegrbase +
|
|
port * dd->ipath_rcvegrcnt * sizeof(*tidbase));
|
|
|
|
for (i = 0; i < dd->ipath_rcvegrcnt; i++)
|
|
ipath_pe_put_tid(dd, &tidbase[i], 1, tidinv);
|
|
}
|
|
|
|
/**
|
|
* ipath_pe_tidtemplate - setup constants for TID updates
|
|
* @dd: the infinipath device
|
|
*
|
|
* We setup stuff that we use a lot, to avoid calculating each time
|
|
*/
|
|
static void ipath_pe_tidtemplate(struct ipath_devdata *dd)
|
|
{
|
|
u32 egrsize = dd->ipath_rcvegrbufsize;
|
|
|
|
/* For now, we always allocate 4KB buffers (at init) so we can
|
|
* receive max size packets. We may want a module parameter to
|
|
* specify 2KB or 4KB and/or make be per port instead of per device
|
|
* for those who want to reduce memory footprint. Note that the
|
|
* ipath_rcvhdrentsize size must be large enough to hold the largest
|
|
* IB header (currently 96 bytes) that we expect to handle (plus of
|
|
* course the 2 dwords of RHF).
|
|
*/
|
|
if (egrsize == 2048)
|
|
dd->ipath_tidtemplate = 1U << 29;
|
|
else if (egrsize == 4096)
|
|
dd->ipath_tidtemplate = 2U << 29;
|
|
else {
|
|
egrsize = 4096;
|
|
dev_info(&dd->pcidev->dev, "BUG: unsupported egrbufsize "
|
|
"%u, using %u\n", dd->ipath_rcvegrbufsize,
|
|
egrsize);
|
|
dd->ipath_tidtemplate = 2U << 29;
|
|
}
|
|
dd->ipath_tidinvalid = 0;
|
|
}
|
|
|
|
static int ipath_pe_early_init(struct ipath_devdata *dd)
|
|
{
|
|
dd->ipath_flags |= IPATH_4BYTE_TID;
|
|
|
|
/*
|
|
* For openfabrics, we need to be able to handle an IB header of
|
|
* 24 dwords. HT chip has arbitrary sized receive buffers, so we
|
|
* made them the same size as the PIO buffers. This chip does not
|
|
* handle arbitrary size buffers, so we need the header large enough
|
|
* to handle largest IB header, but still have room for a 2KB MTU
|
|
* standard IB packet.
|
|
*/
|
|
dd->ipath_rcvhdrentsize = 24;
|
|
dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE;
|
|
|
|
/*
|
|
* To truly support a 4KB MTU (for usermode), we need to
|
|
* bump this to a larger value. For now, we use them for
|
|
* the kernel only.
|
|
*/
|
|
dd->ipath_rcvegrbufsize = 2048;
|
|
/*
|
|
* the min() check here is currently a nop, but it may not always
|
|
* be, depending on just how we do ipath_rcvegrbufsize
|
|
*/
|
|
dd->ipath_ibmaxlen = min(dd->ipath_piosize2k,
|
|
dd->ipath_rcvegrbufsize +
|
|
(dd->ipath_rcvhdrentsize << 2));
|
|
dd->ipath_init_ibmaxlen = dd->ipath_ibmaxlen;
|
|
|
|
/*
|
|
* We can request a receive interrupt for 1 or
|
|
* more packets from current offset. For now, we set this
|
|
* up for a single packet.
|
|
*/
|
|
dd->ipath_rhdrhead_intr_off = 1ULL<<32;
|
|
|
|
ipath_get_eeprom_info(dd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __attribute__((weak)) ipath_unordered_wc(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ipath_init_pe_get_base_info - set chip-specific flags for user code
|
|
* @pd: the infinipath port
|
|
* @kbase: ipath_base_info pointer
|
|
*
|
|
* We set the PCIE flag because the lower bandwidth on PCIe vs
|
|
* HyperTransport can affect some user packet algorithims.
|
|
*/
|
|
static int ipath_pe_get_base_info(struct ipath_portdata *pd, void *kbase)
|
|
{
|
|
struct ipath_base_info *kinfo = kbase;
|
|
struct ipath_devdata *dd;
|
|
|
|
if (ipath_unordered_wc()) {
|
|
kinfo->spi_runtime_flags |= IPATH_RUNTIME_FORCE_WC_ORDER;
|
|
ipath_cdbg(PROC, "Intel processor, forcing WC order\n");
|
|
}
|
|
else
|
|
ipath_cdbg(PROC, "Not Intel processor, WC ordered\n");
|
|
|
|
if (pd == NULL)
|
|
goto done;
|
|
|
|
dd = pd->port_dd;
|
|
|
|
if (dd != NULL && dd->ipath_minrev >= 2) {
|
|
ipath_cdbg(PROC, "IBA6120 Rev2, allow multiple PBC write\n");
|
|
kinfo->spi_runtime_flags |= IPATH_RUNTIME_PBC_REWRITE;
|
|
ipath_cdbg(PROC, "IBA6120 Rev2, allow loose DMA alignment\n");
|
|
kinfo->spi_runtime_flags |= IPATH_RUNTIME_LOOSE_DMA_ALIGN;
|
|
}
|
|
|
|
done:
|
|
kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE;
|
|
return 0;
|
|
}
|
|
|
|
static void ipath_pe_free_irq(struct ipath_devdata *dd)
|
|
{
|
|
free_irq(dd->ipath_irq, dd);
|
|
dd->ipath_irq = 0;
|
|
}
|
|
|
|
/**
|
|
* ipath_init_iba6120_funcs - set up the chip-specific function pointers
|
|
* @dd: the infinipath device
|
|
*
|
|
* This is global, and is called directly at init to set up the
|
|
* chip-specific function pointers for later use.
|
|
*/
|
|
void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
|
|
{
|
|
dd->ipath_f_intrsetup = ipath_pe_intconfig;
|
|
dd->ipath_f_bus = ipath_setup_pe_config;
|
|
dd->ipath_f_reset = ipath_setup_pe_reset;
|
|
dd->ipath_f_get_boardname = ipath_pe_boardname;
|
|
dd->ipath_f_init_hwerrors = ipath_pe_init_hwerrors;
|
|
dd->ipath_f_early_init = ipath_pe_early_init;
|
|
dd->ipath_f_handle_hwerrors = ipath_pe_handle_hwerrors;
|
|
dd->ipath_f_quiet_serdes = ipath_pe_quiet_serdes;
|
|
dd->ipath_f_bringup_serdes = ipath_pe_bringup_serdes;
|
|
dd->ipath_f_clear_tids = ipath_pe_clear_tids;
|
|
if (dd->ipath_minrev >= 2)
|
|
dd->ipath_f_put_tid = ipath_pe_put_tid_2;
|
|
else
|
|
dd->ipath_f_put_tid = ipath_pe_put_tid;
|
|
dd->ipath_f_cleanup = ipath_setup_pe_cleanup;
|
|
dd->ipath_f_setextled = ipath_setup_pe_setextled;
|
|
dd->ipath_f_get_base_info = ipath_pe_get_base_info;
|
|
dd->ipath_f_free_irq = ipath_pe_free_irq;
|
|
|
|
/* initialize chip-specific variables */
|
|
dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
|
|
|
|
/*
|
|
* setup the register offsets, since they are different for each
|
|
* chip
|
|
*/
|
|
dd->ipath_kregs = &ipath_pe_kregs;
|
|
dd->ipath_cregs = &ipath_pe_cregs;
|
|
|
|
ipath_init_pe_variables(dd);
|
|
}
|
|
|