diff options
Diffstat (limited to 'drivers/staging/rdma/ipath/ipath_iba6110.c')
| -rw-r--r-- | drivers/staging/rdma/ipath/ipath_iba6110.c | 1939 |
1 files changed, 0 insertions, 1939 deletions
diff --git a/drivers/staging/rdma/ipath/ipath_iba6110.c b/drivers/staging/rdma/ipath/ipath_iba6110.c deleted file mode 100644 index 5f13572a5e24..000000000000 --- a/drivers/staging/rdma/ipath/ipath_iba6110.c +++ /dev/null @@ -1,1939 +0,0 @@ -/* - * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. - * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -/* - * This file contains all of the code that is specific to the InfiniPath - * HT chip. - */ - -#include <linux/vmalloc.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/htirq.h> -#include <rdma/ib_verbs.h> - -#include "ipath_kernel.h" -#include "ipath_registers.h" - -static void ipath_setup_ht_setextled(struct ipath_devdata *, u64, u64); - - -/* - * This lists the InfiniPath registers, in the actual chip layout. - * This structure should never be directly accessed. - * - * The names are in InterCap form because they're taken straight from - * the chip specification. Since they're only used in this file, they - * don't pollute the rest of the source. -*/ - -struct _infinipath_do_not_use_kernel_regs { - unsigned long long Revision; - unsigned long long Control; - unsigned long long PageAlign; - unsigned long long PortCnt; - unsigned long long DebugPortSelect; - unsigned long long DebugPort; - unsigned long long SendRegBase; - unsigned long long UserRegBase; - unsigned long long CounterRegBase; - unsigned long long Scratch; - unsigned long long ReservedMisc1; - unsigned long long InterruptConfig; - unsigned long long IntBlocked; - unsigned long long IntMask; - unsigned long long IntStatus; - unsigned long long IntClear; - unsigned long long ErrorMask; - unsigned long long ErrorStatus; - unsigned long long ErrorClear; - unsigned long long HwErrMask; - unsigned long long HwErrStatus; - unsigned long long HwErrClear; - unsigned long long HwDiagCtrl; - unsigned long long MDIO; - unsigned long long IBCStatus; - unsigned long long IBCCtrl; - unsigned long long ExtStatus; - unsigned long long ExtCtrl; - unsigned long long GPIOOut; - unsigned long long GPIOMask; - unsigned long long GPIOStatus; - unsigned long long GPIOClear; - unsigned long long RcvCtrl; - unsigned long long RcvBTHQP; - unsigned long long RcvHdrSize; - unsigned long long RcvHdrCnt; - unsigned long long RcvHdrEntSize; - unsigned long long RcvTIDBase; - unsigned long long RcvTIDCnt; - unsigned long long RcvEgrBase; - unsigned long long RcvEgrCnt; - unsigned long long RcvBufBase; - unsigned long long RcvBufSize; - unsigned long long RxIntMemBase; - unsigned long long RxIntMemSize; - unsigned long long RcvPartitionKey; - unsigned long long ReservedRcv[10]; - unsigned long long SendCtrl; - unsigned long long SendPIOBufBase; - unsigned long long SendPIOSize; - unsigned long long SendPIOBufCnt; - unsigned long long SendPIOAvailAddr; - unsigned long long TxIntMemBase; - unsigned long long TxIntMemSize; - unsigned long long ReservedSend[9]; - unsigned long long SendBufferError; - unsigned long long SendBufferErrorCONT1; - unsigned long long SendBufferErrorCONT2; - unsigned long long SendBufferErrorCONT3; - unsigned long long ReservedSBE[4]; - unsigned long long RcvHdrAddr0; - unsigned long long RcvHdrAddr1; - unsigned long long RcvHdrAddr2; - unsigned long long RcvHdrAddr3; - unsigned long long RcvHdrAddr4; - unsigned long long RcvHdrAddr5; - unsigned long long RcvHdrAddr6; - unsigned long long RcvHdrAddr7; - unsigned long long RcvHdrAddr8; - unsigned long long ReservedRHA[7]; - unsigned long long RcvHdrTailAddr0; - unsigned long long RcvHdrTailAddr1; - unsigned long long RcvHdrTailAddr2; - unsigned long long RcvHdrTailAddr3; - unsigned long long RcvHdrTailAddr4; - unsigned long long RcvHdrTailAddr5; - unsigned long long RcvHdrTailAddr6; - unsigned long long RcvHdrTailAddr7; - unsigned long long RcvHdrTailAddr8; - unsigned long long ReservedRHTA[7]; - unsigned long long Sync; /* Software only */ - unsigned long long Dump; /* Software only */ - unsigned long long SimVer; /* Software only */ - unsigned long long ReservedSW[5]; - unsigned long long SerdesConfig0; - unsigned long long SerdesConfig1; - unsigned long long SerdesStatus; - unsigned long long XGXSConfig; - unsigned long long ReservedSW2[4]; -}; - -struct _infinipath_do_not_use_counters { - __u64 LBIntCnt; - __u64 LBFlowStallCnt; - __u64 Reserved1; - __u64 TxUnsupVLErrCnt; - __u64 TxDataPktCnt; - __u64 TxFlowPktCnt; - __u64 TxDwordCnt; - __u64 TxLenErrCnt; - __u64 TxMaxMinLenErrCnt; - __u64 TxUnderrunCnt; - __u64 TxFlowStallCnt; - __u64 TxDroppedPktCnt; - __u64 RxDroppedPktCnt; - __u64 RxDataPktCnt; - __u64 RxFlowPktCnt; - __u64 RxDwordCnt; - __u64 RxLenErrCnt; - __u64 RxMaxMinLenErrCnt; - __u64 RxICRCErrCnt; - __u64 RxVCRCErrCnt; - __u64 RxFlowCtrlErrCnt; - __u64 RxBadFormatCnt; - __u64 RxLinkProblemCnt; - __u64 RxEBPCnt; - __u64 RxLPCRCErrCnt; - __u64 RxBufOvflCnt; - __u64 RxTIDFullErrCnt; - __u64 RxTIDValidErrCnt; - __u64 RxPKeyMismatchCnt; - __u64 RxP0HdrEgrOvflCnt; - __u64 RxP1HdrEgrOvflCnt; - __u64 RxP2HdrEgrOvflCnt; - __u64 RxP3HdrEgrOvflCnt; - __u64 RxP4HdrEgrOvflCnt; - __u64 RxP5HdrEgrOvflCnt; - __u64 RxP6HdrEgrOvflCnt; - __u64 RxP7HdrEgrOvflCnt; - __u64 RxP8HdrEgrOvflCnt; - __u64 Reserved6; - __u64 Reserved7; - __u64 IBStatusChangeCnt; - __u64 IBLinkErrRecoveryCnt; - __u64 IBLinkDownedCnt; - __u64 IBSymbolErrCnt; -}; - -#define IPATH_KREG_OFFSET(field) (offsetof( \ - struct _infinipath_do_not_use_kernel_regs, field) / sizeof(u64)) -#define IPATH_CREG_OFFSET(field) (offsetof( \ - struct _infinipath_do_not_use_counters, field) / sizeof(u64)) - -static const struct ipath_kregs ipath_ht_kregs = { - .kr_control = IPATH_KREG_OFFSET(Control), - .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase), - .kr_debugport = IPATH_KREG_OFFSET(DebugPort), - .kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect), - .kr_errorclear = IPATH_KREG_OFFSET(ErrorClear), - .kr_errormask = IPATH_KREG_OFFSET(ErrorMask), - .kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus), - .kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl), - .kr_extstatus = IPATH_KREG_OFFSET(ExtStatus), - .kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear), - .kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask), - .kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut), - .kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus), - .kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl), - .kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear), - .kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask), - .kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus), - .kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl), - .kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus), - .kr_intblocked = IPATH_KREG_OFFSET(IntBlocked), - .kr_intclear = IPATH_KREG_OFFSET(IntClear), - .kr_interruptconfig = IPATH_KREG_OFFSET(InterruptConfig), - .kr_intmask = IPATH_KREG_OFFSET(IntMask), - .kr_intstatus = IPATH_KREG_OFFSET(IntStatus), - .kr_mdio = IPATH_KREG_OFFSET(MDIO), - .kr_pagealign = IPATH_KREG_OFFSET(PageAlign), - .kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey), - .kr_portcnt = IPATH_KREG_OFFSET(PortCnt), - .kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP), - .kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase), - .kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize), - .kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl), - .kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase), - .kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt), - .kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt), - .kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize), - .kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize), - .kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase), - .kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize), - .kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase), - .kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt), - .kr_revision = IPATH_KREG_OFFSET(Revision), - .kr_scratch = IPATH_KREG_OFFSET(Scratch), - .kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError), - .kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl), - .kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr), - .kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase), - .kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt), - .kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize), - .kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase), - .kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase), - .kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize), - .kr_userregbase = IPATH_KREG_OFFSET(UserRegBase), - .kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0), - .kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1), - .kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus), - .kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig), - /* - * These should not be used directly via ipath_write_kreg64(), - * use them with ipath_write_kreg64_port(), - */ - .kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0), - .kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0) -}; - -static const struct ipath_cregs ipath_ht_cregs = { - .cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt), - .cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt), - .cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt), - .cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt), - .cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt), - .cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt), - .cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt), - .cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt), - .cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt), - .cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt), - .cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt), - .cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt), - /* calc from Reg_CounterRegBase + offset */ - .cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt), - .cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt), - .cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt), - .cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt), - .cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt), - .cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt), - .cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt), - .cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt), - .cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt), - .cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt), - .cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt), - .cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt), - .cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt), - .cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt), - .cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt), - .cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt), - .cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt), - .cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt), - .cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt), - .cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt), - .cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt) -}; - -/* kr_intstatus, kr_intclear, kr_intmask bits */ -#define INFINIPATH_I_RCVURG_MASK ((1U<<9)-1) -#define INFINIPATH_I_RCVURG_SHIFT 0 -#define INFINIPATH_I_RCVAVAIL_MASK ((1U<<9)-1) -#define INFINIPATH_I_RCVAVAIL_SHIFT 12 - -/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ -#define INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT 0 -#define INFINIPATH_HWE_HTCMEMPARITYERR_MASK 0x3FFFFFULL -#define INFINIPATH_HWE_HTCLNKABYTE0CRCERR 0x0000000000800000ULL -#define INFINIPATH_HWE_HTCLNKABYTE1CRCERR 0x0000000001000000ULL -#define INFINIPATH_HWE_HTCLNKBBYTE0CRCERR 0x0000000002000000ULL -#define INFINIPATH_HWE_HTCLNKBBYTE1CRCERR 0x0000000004000000ULL -#define INFINIPATH_HWE_HTCMISCERR4 0x0000000008000000ULL -#define INFINIPATH_HWE_HTCMISCERR5 0x0000000010000000ULL -#define INFINIPATH_HWE_HTCMISCERR6 0x0000000020000000ULL -#define INFINIPATH_HWE_HTCMISCERR7 0x0000000040000000ULL -#define INFINIPATH_HWE_HTCBUSTREQPARITYERR 0x0000000080000000ULL -#define INFINIPATH_HWE_HTCBUSTRESPPARITYERR 0x0000000100000000ULL -#define INFINIPATH_HWE_HTCBUSIREQPARITYERR 0x0000000200000000ULL -#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL -#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL -#define INFINIPATH_HWE_HTBPLL_FBSLIP 0x0200000000000000ULL -#define INFINIPATH_HWE_HTBPLL_RFSLIP 0x0400000000000000ULL -#define INFINIPATH_HWE_HTAPLL_FBSLIP 0x0800000000000000ULL -#define INFINIPATH_HWE_HTAPLL_RFSLIP 0x1000000000000000ULL -#define INFINIPATH_HWE_SERDESPLLFAILED 0x2000000000000000ULL - -#define IBA6110_IBCS_LINKTRAININGSTATE_MASK 0xf -#define IBA6110_IBCS_LINKSTATE_SHIFT 4 - -/* kr_extstatus bits */ -#define INFINIPATH_EXTS_FREQSEL 0x2 -#define INFINIPATH_EXTS_SERDESSEL 0x4 -#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000 -#define INFINIPATH_EXTS_MEMBIST_CORRECT 0x0000000000008000 - - -/* TID entries (memory), HT-only */ -#define INFINIPATH_RT_ADDR_MASK 0xFFFFFFFFFFULL /* 40 bits valid */ -#define INFINIPATH_RT_VALID 0x8000000000000000ULL -#define INFINIPATH_RT_ADDR_SHIFT 0 -#define INFINIPATH_RT_BUFSIZE_MASK 0x3FFFULL -#define INFINIPATH_RT_BUFSIZE_SHIFT 48 - -#define INFINIPATH_R_INTRAVAIL_SHIFT 16 -#define INFINIPATH_R_TAILUPD_SHIFT 31 - -/* kr_xgxsconfig bits */ -#define INFINIPATH_XGXS_RESET 0x7ULL - -/* - * masks and bits that are different in different chips, or present only - * in one - */ -static const ipath_err_t infinipath_hwe_htcmemparityerr_mask = - INFINIPATH_HWE_HTCMEMPARITYERR_MASK; -static const ipath_err_t infinipath_hwe_htcmemparityerr_shift = - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT; - -static const ipath_err_t infinipath_hwe_htclnkabyte0crcerr = - INFINIPATH_HWE_HTCLNKABYTE0CRCERR; -static const ipath_err_t infinipath_hwe_htclnkabyte1crcerr = - INFINIPATH_HWE_HTCLNKABYTE1CRCERR; -static const ipath_err_t infinipath_hwe_htclnkbbyte0crcerr = - INFINIPATH_HWE_HTCLNKBBYTE0CRCERR; -static const ipath_err_t infinipath_hwe_htclnkbbyte1crcerr = - INFINIPATH_HWE_HTCLNKBBYTE1CRCERR; - -#define _IPATH_GPIO_SDA_NUM 1 -#define _IPATH_GPIO_SCL_NUM 0 - -#define IPATH_GPIO_SDA \ - (1ULL << (_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) -#define IPATH_GPIO_SCL \ - (1ULL << (_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) - -/* keep the code below somewhat more readable; not used elsewhere */ -#define _IPATH_HTLINK0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ - infinipath_hwe_htclnkabyte1crcerr) -#define _IPATH_HTLINK1_CRCBITS (infinipath_hwe_htclnkbbyte0crcerr | \ - infinipath_hwe_htclnkbbyte1crcerr) -#define _IPATH_HTLANE0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ - infinipath_hwe_htclnkbbyte0crcerr) -#define _IPATH_HTLANE1_CRCBITS (infinipath_hwe_htclnkabyte1crcerr | \ - infinipath_hwe_htclnkbbyte1crcerr) - -static void hwerr_crcbits(struct ipath_devdata *dd, ipath_err_t hwerrs, - char *msg, size_t msgl) -{ - char bitsmsg[64]; - ipath_err_t crcbits = hwerrs & - (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS); - /* don't check if 8bit HT */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT0) - crcbits &= ~infinipath_hwe_htclnkabyte1crcerr; - /* don't check if 8bit HT */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT1) - crcbits &= ~infinipath_hwe_htclnkbbyte1crcerr; - /* - * we'll want to ignore link errors on link that is - * not in use, if any. For now, complain about both - */ - if (crcbits) { - u16 ctrl0, ctrl1; - snprintf(bitsmsg, sizeof bitsmsg, - "[HT%s lane %s CRC (%llx); powercycle to completely clear]", - !(crcbits & _IPATH_HTLINK1_CRCBITS) ? - "0 (A)" : (!(crcbits & _IPATH_HTLINK0_CRCBITS) - ? "1 (B)" : "0+1 (A+B)"), - !(crcbits & _IPATH_HTLANE1_CRCBITS) ? "0" - : (!(crcbits & _IPATH_HTLANE0_CRCBITS) ? "1" : - "0+1"), (unsigned long long) crcbits); - strlcat(msg, bitsmsg, msgl); - - /* - * print extra info for debugging. slave/primary - * config word 4, 8 (link control 0, 1) - */ - - if (pci_read_config_word(dd->pcidev, - dd->ipath_ht_slave_off + 0x4, - &ctrl0)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkctrl0 of slave/primary " - "config block\n"); - else if (!(ctrl0 & 1 << 6)) - /* not if EOC bit set */ - ipath_dbg("HT linkctrl0 0x%x%s%s\n", ctrl0, - ((ctrl0 >> 8) & 7) ? " CRC" : "", - ((ctrl0 >> 4) & 1) ? "linkfail" : - ""); - if (pci_read_config_word(dd->pcidev, - dd->ipath_ht_slave_off + 0x8, - &ctrl1)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkctrl1 of slave/primary " - "config block\n"); - else if (!(ctrl1 & 1 << 6)) - /* not if EOC bit set */ - ipath_dbg("HT linkctrl1 0x%x%s%s\n", ctrl1, - ((ctrl1 >> 8) & 7) ? " CRC" : "", - ((ctrl1 >> 4) & 1) ? "linkfail" : - ""); - - /* disable until driver reloaded */ - dd->ipath_hwerrmask &= ~crcbits; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - ipath_dbg("HT crc errs: %s\n", msg); - } else - ipath_dbg("ignoring HT crc errors 0x%llx, " - "not in use\n", (unsigned long long) - (hwerrs & (_IPATH_HTLINK0_CRCBITS | - _IPATH_HTLINK1_CRCBITS))); -} - -/* 6110 specific hardware errors... */ -static const struct ipath_hwerror_msgs ipath_6110_hwerror_msgs[] = { - INFINIPATH_HWE_MSG(HTCBUSIREQPARITYERR, "HTC Ireq Parity"), - INFINIPATH_HWE_MSG(HTCBUSTREQPARITYERR, "HTC Treq Parity"), - INFINIPATH_HWE_MSG(HTCBUSTRESPPARITYERR, "HTC Tresp Parity"), - INFINIPATH_HWE_MSG(HTCMISCERR5, "HT core Misc5"), - INFINIPATH_HWE_MSG(HTCMISCERR6, "HT core Misc6"), - INFINIPATH_HWE_MSG(HTCMISCERR7, "HT core Misc7"), - INFINIPATH_HWE_MSG(RXDSYNCMEMPARITYERR, "Rx Dsync"), - INFINIPATH_HWE_MSG(SERDESPLLFAILED, "SerDes PLL"), -}; - -#define TXE_PIO_PARITY ((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF | \ - INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC) \ - << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) -#define RXE_EAGER_PARITY (INFINIPATH_HWE_RXEMEMPARITYERR_EAGERTID \ - << INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) - -static void ipath_ht_txe_recover(struct ipath_devdata *dd) -{ - ++ipath_stats.sps_txeparity; - dev_info(&dd->pcidev->dev, - "Recovering from TXE PIO parity error\n"); -} - - -/** - * ipath_ht_handle_hwerrors - display hardware errors. - * @dd: the infinipath device - * @msg: the output buffer - * @msgl: the size of the output buffer - * - * Use same msg buffer as regular errors to avoid excessive stack - * use. Most hardware errors are catastrophic, but for right now, - * we'll print them and continue. We reuse the same message buffer as - * ipath_handle_errors() to avoid excessive stack usage. - */ -static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg, - size_t msgl) -{ - ipath_err_t hwerrs; - u32 bits, ctrl; - int isfatal = 0; - char bitsmsg[64]; - int log_idx; - - hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); - - if (!hwerrs) { - ipath_cdbg(VERBOSE, "Called but no hardware errors set\n"); - /* - * better than printing cofusing messages - * This seems to be related to clearing the crc error, or - * the pll error during init. - */ - goto bail; - } else if (hwerrs == -1LL) { - ipath_dev_err(dd, "Read of hardware error status failed " - "(all bits set); ignoring\n"); - goto bail; - } - ipath_stats.sps_hwerrs++; - - /* Always clear the error status register, except MEMBISTFAIL, - * regardless of whether we continue or stop using the chip. - * We want that set so we know it failed, even across driver reload. - * We'll still ignore it in the hwerrmask. We do this partly for - * diagnostics, but also for support */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, - hwerrs&~INFINIPATH_HWE_MEMBISTFAILED); - - hwerrs &= dd->ipath_hwerrmask; - - /* We log some errors to EEPROM, check if we have any of those. */ - for (log_idx = 0; log_idx < IPATH_EEP_LOG_CNT; ++log_idx) - if (hwerrs & dd->ipath_eep_st_masks[log_idx].hwerrs_to_log) - ipath_inc_eeprom_err(dd, log_idx, 1); - - /* - * make sure we get this much out, unless told to be quiet, - * it's a parity error we may recover from, - * or it's occurred within the last 5 seconds - */ - if ((hwerrs & ~(dd->ipath_lasthwerror | TXE_PIO_PARITY | - RXE_EAGER_PARITY)) || - (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) && !ipath_diag_inuse) { - /* - * 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 & TXE_PIO_PARITY) { - ipath_ht_txe_recover(dd); - hwerrs &= ~TXE_PIO_PARITY; - } - - if (!hwerrs) { - ipath_dbg("Clearing freezemode on ignored or " - "recovered hardware error\n"); - ipath_clear_freeze(dd); - } - } - - *msg = '\0'; - - /* - * may someday want to decode into which bits are which - * functional area for parity errors, etc. - */ - if (hwerrs & (infinipath_hwe_htcmemparityerr_mask - << INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_HTCMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[HTC Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - - ipath_format_hwerrors(hwerrs, - ipath_6110_hwerror_msgs, - ARRAY_SIZE(ipath_6110_hwerror_msgs), - msg, msgl); - - if (hwerrs & (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS)) - hwerr_crcbits(dd, hwerrs, msg, msgl); - - 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_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } -#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \ - INFINIPATH_HWE_COREPLL_RFSLIP | \ - INFINIPATH_HWE_HTBPLL_FBSLIP | \ - INFINIPATH_HWE_HTBPLL_RFSLIP | \ - INFINIPATH_HWE_HTAPLL_FBSLIP | \ - INFINIPATH_HWE_HTAPLL_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); - } - - 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. - * force link down, so switch knows, and - * LEDs are turned off - */ - if (dd->ipath_flags & IPATH_INITTED) { - ipath_set_linkstate(dd, IPATH_IB_LINKDOWN); - ipath_setup_ht_setextled(dd, - INFINIPATH_IBCS_L_STATE_DOWN, - INFINIPATH_IBCS_LT_STATE_DISABLED); - ipath_dev_err(dd, "Fatal Hardware Error (freeze " - "mode), no longer usable, SN %.16s\n", - dd->ipath_serial); - isfatal = 1; - } - *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; - /* mark as having had error */ - *dd->ipath_statusp |= IPATH_STATUS_HWERROR; - /* - * mark as not usable, at a minimum until driver - * is reloaded, probably until reboot, since no - * other reset is possible. - */ - dd->ipath_flags &= ~IPATH_INITTED; - } else { - *msg = 0; /* recovered from all of them */ - } - if (*msg) - ipath_dev_err(dd, "%s hardware error\n", msg); - if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) - /* - * for status file; if no trailing brace is copied, - * we'll know it was truncated. - */ - snprintf(dd->ipath_freezemsg, - dd->ipath_freezelen, "{%s}", msg); - -bail:; -} - -/** - * ipath_ht_boardname - fill in the board name - * @dd: the infinipath device - * @name: the output buffer - * @namelen: the size of the output buffer - * - * fill in the board name, based on the board revision register - */ -static int ipath_ht_boardname(struct ipath_devdata *dd, char *name, - size_t namelen) -{ - char *n = NULL; - u8 boardrev = dd->ipath_boardrev; - int ret = 0; - - switch (boardrev) { - case 5: - /* - * original production board; two production levels, with - * different serial number ranges. See ipath_ht_early_init() for - * case where we enable IPATH_GPIO_INTR for later serial # range. - * Original 112* serial number is no longer supported. - */ - n = "InfiniPath_QHT7040"; - break; - case 7: - /* small form factor production board */ - n = "InfiniPath_QHT7140"; - break; - default: /* don't know, just print the number */ - ipath_dev_err(dd, "Don't yet know about board " - "with ID %u\n", boardrev); - snprintf(name, namelen, "Unknown_InfiniPath_QHT7xxx_%u", - boardrev); - break; - } - if (n) - snprintf(name, namelen, "%s", n); - - if (ret) { - ipath_dev_err(dd, "Unsupported InfiniPath board %s!\n", name); - goto bail; - } - if (dd->ipath_majrev != 3 || (dd->ipath_minrev < 2 || - dd->ipath_minrev > 4)) { - /* - * This version of the driver only supports Rev 3.2 - 3.4 - */ - ipath_dev_err(dd, - "Unsupported InfiniPath hardware revision %u.%u!\n", - dd->ipath_majrev, dd->ipath_minrev); - ret = 1; - goto bail; - } - /* - * pkt/word counters are 32 bit, and therefore wrap fast enough - * that we snapshot them from a timer, and maintain 64 bit shadow - * copies - */ - dd->ipath_flags |= IPATH_32BITCOUNTERS; - dd->ipath_flags |= IPATH_GPIO_INTR; - if (dd->ipath_lbus_speed != 800) - ipath_dev_err(dd, - "Incorrectly configured for HT @ %uMHz\n", - dd->ipath_lbus_speed); - - /* - * set here, not in ipath_init_*_funcs because we have to do - * it after we can read chip registers. - */ - dd->ipath_ureg_align = - ipath_read_kreg32(dd, dd->ipath_kregs->kr_pagealign); - -bail: - return ret; -} - -static void ipath_check_htlink(struct ipath_devdata *dd) -{ - u8 linkerr, link_off, i; - - for (i = 0; i < 2; i++) { - link_off = dd->ipath_ht_slave_off + i * 4 + 0xd; - if (pci_read_config_byte(dd->pcidev, link_off, &linkerr)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkerror%d of HT slave/primary block\n", - i); - else if (linkerr & 0xf0) { - ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " - "clearing\n", linkerr >> 4, i); - /* - * writing the linkerr bits that are set should - * clear them - */ - if (pci_write_config_byte(dd->pcidev, link_off, - linkerr)) - ipath_dbg("Failed write to clear HT " - "linkerror%d\n", i); - if (pci_read_config_byte(dd->pcidev, link_off, - &linkerr)) - dev_info(&dd->pcidev->dev, - "Couldn't reread linkerror%d of " - "HT slave/primary block\n", i); - else if (linkerr & 0xf0) - dev_info(&dd->pcidev->dev, - "HT linkerror%d bits 0x%x " - "couldn't be cleared\n", - i, linkerr >> 4); - } - } -} - -static int ipath_setup_ht_reset(struct ipath_devdata *dd) -{ - ipath_dbg("No reset possible for this InfiniPath hardware\n"); - return 0; -} - -#define HT_INTR_DISC_CONFIG 0x80 /* HT interrupt and discovery cap */ -#define HT_INTR_REG_INDEX 2 /* intconfig requires indirect accesses */ - -/* - * Bits 13-15 of command==0 is slave/primary block. Clear any HT CRC - * errors. We only bother to do this at load time, because it's OK if - * it happened before we were loaded (first time after boot/reset), - * but any time after that, it's fatal anyway. Also need to not check - * for upper byte errors if we are in 8 bit mode, so figure out - * our width. For now, at least, also complain if it's 8 bit. - */ -static void slave_or_pri_blk(struct ipath_devdata *dd, struct pci_dev *pdev, - int pos, u8 cap_type) -{ - u8 linkwidth = 0, linkerr, link_a_b_off, link_off; - u16 linkctrl = 0; - int i; - - dd->ipath_ht_slave_off = pos; - /* command word, master_host bit */ - /* master host || slave */ - if ((cap_type >> 2) & 1) - link_a_b_off = 4; - else - link_a_b_off = 0; - ipath_cdbg(VERBOSE, "HT%u (Link %c) connected to processor\n", - link_a_b_off ? 1 : 0, - link_a_b_off ? 'B' : 'A'); - - link_a_b_off += pos; - - /* - * check both link control registers; clear both HT CRC sets if - * necessary. - */ - for (i = 0; i < 2; i++) { - link_off = pos + i * 4 + 0x4; - if (pci_read_config_word(pdev, link_off, &linkctrl)) - ipath_dev_err(dd, "Couldn't read HT link control%d " - "register\n", i); - else if (linkctrl & (0xf << 8)) { - ipath_cdbg(VERBOSE, "Clear linkctrl%d CRC Error " - "bits %x\n", i, linkctrl & (0xf << 8)); - /* - * now write them back to clear the error. - */ - pci_write_config_word(pdev, link_off, - linkctrl & (0xf << 8)); - } - } - - /* - * As with HT CRC bits, same for protocol errors that might occur - * during boot. - */ - for (i = 0; i < 2; i++) { - link_off = pos + i * 4 + 0xd; - if (pci_read_config_byte(pdev, link_off, &linkerr)) - dev_info(&pdev->dev, "Couldn't read linkerror%d " - "of HT slave/primary block\n", i); - else if (linkerr & 0xf0) { - ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " - "clearing\n", linkerr >> 4, i); - /* - * writing the linkerr bits that are set will clear - * them - */ - if (pci_write_config_byte - (pdev, link_off, linkerr)) - ipath_dbg("Failed write to clear HT " - "linkerror%d\n", i); - if (pci_read_config_byte(pdev, link_off, &linkerr)) - dev_info(&pdev->dev, "Couldn't reread " - "linkerror%d of HT slave/primary " - "block\n", i); - else if (linkerr & 0xf0) - dev_info(&pdev->dev, "HT linkerror%d bits " - "0x%x couldn't be cleared\n", - i, linkerr >> 4); - } - } - - /* - * this is just for our link to the host, not devices connected - * through tunnel. - */ - - if (pci_read_config_byte(pdev, link_a_b_off + 7, &linkwidth)) - ipath_dev_err(dd, "Couldn't read HT link width " - "config register\n"); - else { - u32 width; - switch (linkwidth & 7) { - case 5: - width = 4; - break; - case 4: - width = 2; - break; - case 3: - width = 32; - break; - case 1: - width = 16; - break; - case 0: - default: /* if wrong, assume 8 bit */ - width = 8; - break; - } - - dd->ipath_lbus_width = width; - - if (linkwidth != 0x11) { - ipath_dev_err(dd, "Not configured for 16 bit HT " - "(%x)\n", linkwidth); - if (!(linkwidth & 0xf)) { - ipath_dbg("Will ignore HT lane1 errors\n"); - dd->ipath_flags |= IPATH_8BIT_IN_HT0; - } - } - } - - /* - * this is just for our link to the host, not devices connected - * through tunnel. - */ - if (pci_read_config_byte(pdev, link_a_b_off + 0xd, &linkwidth)) - ipath_dev_err(dd, "Couldn't read HT link frequency " - "config register\n"); - else { - u32 speed; - switch (linkwidth & 0xf) { - case 6: - speed = 1000; - break; - case 5: - speed = 800; - break; - case 4: - speed = 600; - break; - case 3: - speed = 500; - break; - case 2: - speed = 400; - break; - case 1: - speed = 300; - break; - default: - /* - * assume reserved and vendor-specific are 200... - */ - case 0: - speed = 200; - break; - } - dd->ipath_lbus_speed = speed; - } - - snprintf(dd->ipath_lbus_info, sizeof(dd->ipath_lbus_info), - "HyperTransport,%uMHz,x%u\n", - dd->ipath_lbus_speed, - dd->ipath_lbus_width); -} - -static int ipath_ht_intconfig(struct ipath_devdata *dd) -{ - int ret; - - if (dd->ipath_intconfig) { - ipath_write_kreg(dd, dd->ipath_kregs->kr_interruptconfig, - dd->ipath_intconfig); /* interrupt address */ - ret = 0; - } else { - ipath_dev_err(dd, "No interrupts enabled, couldn't setup " - "interrupt address\n"); - ret = -EINVAL; - } - - return ret; -} - -static void ipath_ht_irq_update(struct pci_dev *dev, int irq, - struct ht_irq_msg *msg) -{ - struct ipath_devdata *dd = pci_get_drvdata(dev); - u64 prev_intconfig = dd->ipath_intconfig; - - dd->ipath_intconfig = msg->address_lo; - dd->ipath_intconfig |= ((u64) msg->address_hi) << 32; - - /* - * If the previous value of dd->ipath_intconfig is zero, we're - * getting configured for the first time, and must not program the - * intconfig register here (it will be programmed later, when the - * hardware is ready). Otherwise, we should. - */ - if (prev_intconfig) - ipath_ht_intconfig(dd); -} - -/** - * ipath_setup_ht_config - setup the interruptconfig register - * @dd: the infinipath device - * @pdev: the PCI device - * - * setup the interruptconfig register from the HT config info. - * Also clear CRC errors in HT linkcontrol, if necessary. - * This is done only for the real hardware. It is done before - * chip address space is initted, so can't touch infinipath registers - */ -static int ipath_setup_ht_config(struct ipath_devdata *dd, - struct pci_dev *pdev) -{ - int pos, ret; - - ret = __ht_create_irq(pdev, 0, ipath_ht_irq_update); - if (ret < 0) { - ipath_dev_err(dd, "Couldn't create interrupt handler: " - "err %d\n", ret); - goto bail; - } - dd->ipath_irq = ret; - ret = 0; - - /* - * Handle clearing CRC errors in linkctrl register if necessary. We - * do this early, before we ever enable errors or hardware errors, - * mostly to avoid causing the chip to enter freeze mode. - */ - pos = pci_find_capability(pdev, PCI_CAP_ID_HT); - if (!pos) { - ipath_dev_err(dd, "Couldn't find HyperTransport " - "capability; no interrupts\n"); - ret = -ENODEV; - goto bail; - } - do { - u8 cap_type; - - /* - * The HT capability type byte is 3 bytes after the - * capability byte. - */ - if (pci_read_config_byte(pdev, pos + 3, &cap_type)) { - dev_info(&pdev->dev, "Couldn't read config " - "command @ %d\n", pos); - continue; - } - if (!(cap_type & 0xE0)) - slave_or_pri_blk(dd, pdev, pos, cap_type); - } while ((pos = pci_find_next_capability(pdev, pos, - PCI_CAP_ID_HT))); - - dd->ipath_flags |= IPATH_SWAP_PIOBUFS; - -bail: - return ret; -} - -/** - * ipath_setup_ht_cleanup - clean up any per-chip chip-specific stuff - * @dd: the infinipath device - * - * Called during driver unload. - * This is currently a nop for the HT chip, not for all chips - */ -static void ipath_setup_ht_cleanup(struct ipath_devdata *dd) -{ -} - -/** - * ipath_setup_ht_setextled - set the state of the two external LEDs - * @dd: the infinipath device - * @lst: the L state - * @ltst: the LT state - * - * Set the state of the two external LEDs, to indicate physical and - * logical state of IB link. For this chip (at least with recommended - * board pinouts), LED1 is Green (physical state), and LED2 is Yellow - * (logical 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_ht_setextled(struct ipath_devdata *dd, - u64 lst, u64 ltst) -{ - u64 extctl; - unsigned long flags = 0; - - /* 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; - - /* Allow override of LED display for, e.g. Locating system in rack */ - if (dd->ipath_led_override) { - ltst = (dd->ipath_led_override & IPATH_LED_PHYS) - ? INFINIPATH_IBCS_LT_STATE_LINKUP - : INFINIPATH_IBCS_LT_STATE_DISABLED; - lst = (dd->ipath_led_override & IPATH_LED_LOG) - ? INFINIPATH_IBCS_L_STATE_ACTIVE - : INFINIPATH_IBCS_L_STATE_DOWN; - } - - spin_lock_irqsave(&dd->ipath_gpio_lock, flags); - /* - * start by setting both LED control bits to off, then turn - * on the appropriate bit(s). - */ - if (dd->ipath_boardrev == 8) { /* LS/X-1 uses different pins */ - /* - * major difference is that INFINIPATH_EXTC_LEDGBLERR_OFF - * is inverted, because it is normally used to indicate - * a hardware fault at reset, if there were errors - */ - extctl = (dd->ipath_extctrl & ~INFINIPATH_EXTC_LEDGBLOK_ON) - | INFINIPATH_EXTC_LEDGBLERR_OFF; - if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) - extctl &= ~INFINIPATH_EXTC_LEDGBLERR_OFF; - if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) - extctl |= INFINIPATH_EXTC_LEDGBLOK_ON; - } else { - extctl = dd->ipath_extctrl & - ~(INFINIPATH_EXTC_LED1PRIPORT_ON | - INFINIPATH_EXTC_LED2PRIPORT_ON); - if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) - extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON; - if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) - extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON; - } - dd->ipath_extctrl = extctl; - ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl); - spin_unlock_irqrestore(&dd->ipath_gpio_lock, flags); -} - -static void ipath_init_ht_variables(struct ipath_devdata *dd) -{ - /* - * setup the register offsets, since they are different for each - * chip - */ - dd->ipath_kregs = &ipath_ht_kregs; - dd->ipath_cregs = &ipath_ht_cregs; - - 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; - - /* - * Fill in data for field-values that change in newer chips. - * We dynamically specify only the mask for LINKTRAININGSTATE - * and only the shift for LINKSTATE, as they are the only ones - * that change. Also precalculate the 3 link states of interest - * and the combined mask. - */ - dd->ibcs_ls_shift = IBA6110_IBCS_LINKSTATE_SHIFT; - dd->ibcs_lts_mask = IBA6110_IBCS_LINKTRAININGSTATE_MASK; - dd->ibcs_mask = (INFINIPATH_IBCS_LINKSTATE_MASK << - dd->ibcs_ls_shift) | dd->ibcs_lts_mask; - dd->ib_init = (INFINIPATH_IBCS_LT_STATE_LINKUP << - INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) | - (INFINIPATH_IBCS_L_STATE_INIT << dd->ibcs_ls_shift); - dd->ib_arm = (INFINIPATH_IBCS_LT_STATE_LINKUP << - INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) | - (INFINIPATH_IBCS_L_STATE_ARM << dd->ibcs_ls_shift); - dd->ib_active = (INFINIPATH_IBCS_LT_STATE_LINKUP << - INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) | - (INFINIPATH_IBCS_L_STATE_ACTIVE << dd->ibcs_ls_shift); - - /* - * Fill in data for ibcc field-values that change in newer chips. - * We dynamically specify only the mask for LINKINITCMD - * and only the shift for LINKCMD and MAXPKTLEN, as they are - * the only ones that change. - */ - dd->ibcc_lic_mask = INFINIPATH_IBCC_LINKINITCMD_MASK; - dd->ibcc_lc_shift = INFINIPATH_IBCC_LINKCMD_SHIFT; - dd->ibcc_mpl_shift = INFINIPATH_IBCC_MAXPKTLEN_SHIFT; - - /* Fill in shifts for RcvCtrl. */ - dd->ipath_r_portenable_shift = INFINIPATH_R_PORTENABLE_SHIFT; - dd->ipath_r_intravail_shift = INFINIPATH_R_INTRAVAIL_SHIFT; - dd->ipath_r_tailupd_shift = INFINIPATH_R_TAILUPD_SHIFT; - dd->ipath_r_portcfg_shift = 0; /* Not on IBA6110 */ - - 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_hwe_bitsextant = - (INFINIPATH_HWE_HTCMEMPARITYERR_MASK << - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) | - (INFINIPATH_HWE_TXEMEMPARITYERR_MASK << - INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) | - (INFINIPATH_HWE_RXEMEMPARITYERR_MASK << - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) | - INFINIPATH_HWE_HTCLNKABYTE0CRCERR | - INFINIPATH_HWE_HTCLNKABYTE1CRCERR | - INFINIPATH_HWE_HTCLNKBBYTE0CRCERR | - INFINIPATH_HWE_HTCLNKBBYTE1CRCERR | - INFINIPATH_HWE_HTCMISCERR4 | - INFINIPATH_HWE_HTCMISCERR5 | INFINIPATH_HWE_HTCMISCERR6 | - INFINIPATH_HWE_HTCMISCERR7 | - INFINIPATH_HWE_HTCBUSTREQPARITYERR | - INFINIPATH_HWE_HTCBUSTRESPPARITYERR | - INFINIPATH_HWE_HTCBUSIREQPARITYERR | - INFINIPATH_HWE_RXDSYNCMEMPARITYERR | - INFINIPATH_HWE_MEMBISTFAILED | - INFINIPATH_HWE_COREPLL_FBSLIP | - INFINIPATH_HWE_COREPLL_RFSLIP | - INFINIPATH_HWE_HTBPLL_FBSLIP | - INFINIPATH_HWE_HTBPLL_RFSLIP | - INFINIPATH_HWE_HTAPLL_FBSLIP | - INFINIPATH_HWE_HTAPLL_RFSLIP | - INFINIPATH_HWE_SERDESPLLFAILED | - INFINIPATH_HWE_IBCBUSTOSPCPARITYERR | - INFINIPATH_HWE_IBCBUSFRSPCPARITYERR; - - dd->ipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK; - dd->ipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK; - dd->ipath_i_rcvavail_shift = INFINIPATH_I_RCVAVAIL_SHIFT; - dd->ipath_i_rcvurg_shift = INFINIPATH_I_RCVURG_SHIFT; - - /* - * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity. - * 2 is Some Misc, 3 is reserved for future. - */ - dd->ipath_eep_st_masks[0].hwerrs_to_log = - INFINIPATH_HWE_TXEMEMPARITYERR_MASK << - INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT; - - dd->ipath_eep_st_masks[1].hwerrs_to_log = - INFINIPATH_HWE_RXEMEMPARITYERR_MASK << - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT; - - dd->ipath_eep_st_masks[2].errs_to_log = INFINIPATH_E_RESET; - - dd->delay_mult = 2; /* SDR, 4X, can't change */ - - dd->ipath_link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X; - dd->ipath_link_speed_supported = IPATH_IB_SDR; - dd->ipath_link_width_enabled = IB_WIDTH_4X; - dd->ipath_link_speed_enabled = dd->ipath_link_speed_supported; - /* these can't change for this chip, so set once */ - dd->ipath_link_width_active = dd->ipath_link_width_enabled; - dd->ipath_link_speed_active = dd->ipath_link_speed_enabled; -} - -/** - * ipath_ht_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_ht_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"); - if (extsval & INFINIPATH_EXTS_MEMBIST_CORRECT) - ipath_dbg("MemBIST corrected\n"); - - ipath_check_htlink(dd); - - /* barring bugs, all hwerrors become interrupts, which can */ - val = -1LL; - /* don't look at crc lane1 if 8 bit */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT0) - val &= ~infinipath_hwe_htclnkabyte1crcerr; - /* don't look at crc lane1 if 8 bit */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT1) - val &= ~infinipath_hwe_htclnkbbyte1crcerr; - - /* - * disable RXDSYNCMEMPARITY because external serdes is unused, - * and therefore the logic will never be used or initialized, - * and uninitialized state will normally result in this error - * being asserted. Similarly for the external serdess pll - * lock signal. - */ - val &= ~(INFINIPATH_HWE_SERDESPLLFAILED | - INFINIPATH_HWE_RXDSYNCMEMPARITYERR); - - /* - * Disable MISCERR4 because of an inversion in the HT core - * logic checking for errors that cause this bit to be set. - * The errata can also cause the protocol error bit to be set - * in the HT config space linkerror register(s). - */ - val &= ~INFINIPATH_HWE_HTCMISCERR4; - - /* - * PLL ignored because unused MDIO interface has a logic problem - */ - if (dd->ipath_boardrev == 4 || dd->ipath_boardrev == 9) - val &= ~INFINIPATH_HWE_SERDESPLLFAILED; - dd->ipath_hwerrmask = val; -} - - - - -/** - * ipath_ht_bringup_serdes - bring up the serdes - * @dd: the infinipath device - */ -static int ipath_ht_bringup_serdes(struct ipath_devdata *dd) -{ - u64 val, config1; - int ret = 0, change = 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, "Initial serdes status is 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)); - - /* force reset on */ - val |= INFINIPATH_SERDC0_RESET_PLL - /* | INFINIPATH_SERDC0_RESET_MASK */ - ; - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); - udelay(15); /* need pll reset set at least for a bit */ - - if (val & INFINIPATH_SERDC0_RESET_PLL) { - u64 val2 = val &= ~INFINIPATH_SERDC0_RESET_PLL; - /* set lane resets, and tx idle, during pll reset */ - val2 |= INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE; - ipath_cdbg(VERBOSE, "Clearing serdes PLL reset (writing " - "%llx)\n", (unsigned long long) val2); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, - val2); - /* - * be sure chip saw it - */ - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - /* - * need pll reset clear at least 11 usec before lane - * resets cleared; give it a few more - */ - udelay(15); - val = val2; /* for check below */ - } - - if (val & (INFINIPATH_SERDC0_RESET_PLL | - INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE)) { - val &= ~(INFINIPATH_SERDC0_RESET_PLL | - INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE); - /* clear them */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, - val); - } - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); - if (val & INFINIPATH_XGXS_RESET) { - /* normally true after boot */ - val &= ~INFINIPATH_XGXS_RESET; - change = 1; - } - 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; - change = 1; - } - if (change) - 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, "After setup: serdes status is 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)); - - return ret; /* for now, say we always succeeded */ -} - -/** - * ipath_ht_quiet_serdes - set serdes to txidle - * @dd: the infinipath device - * driver is being unloaded - */ -static void ipath_ht_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); -} - -/** - * ipath_pe_put_tid - write a TID in chip - * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to update - * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) 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_ht_put_tid(struct ipath_devdata *dd, - u64 __iomem *tidptr, u32 type, - unsigned long pa) -{ - if (!dd->ipath_kregbase) - return; - - if (pa != dd->ipath_tidinvalid) { - if (unlikely((pa & ~INFINIPATH_RT_ADDR_MASK))) { - dev_info(&dd->pcidev->dev, - "physaddr %lx has more than " - "40 bits, using only 40!!!\n", pa); - pa &= INFINIPATH_RT_ADDR_MASK; - } - if (type == RCVHQ_RCV_TYPE_EAGER) - pa |= dd->ipath_tidtemplate; - else { - /* in words (fixed, full page). */ - u64 lenvalid = PAGE_SIZE >> 2; - lenvalid <<= INFINIPATH_RT_BUFSIZE_SHIFT; - pa |= lenvalid | INFINIPATH_RT_VALID; - } - } - - writeq(pa, tidptr); -} - - -/** - * ipath_ht_clear_tid - clear all TID entries for a port, expected and eager - * @dd: the infinipath device - * @port: the port - * - * Used from ipath_close(), and at chip initialization. - */ -static void ipath_ht_clear_tids(struct ipath_devdata *dd, unsigned port) -{ - u64 __iomem *tidbase; - int i; - - if (!dd->ipath_kregbase) - return; - - ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port); - - /* - * need to invalidate all of the expected TID entries for this - * port, so we don't have valid entries that might somehow get - * used (early in next use of this port, or through some bug) - */ - 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_ht_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, - dd->ipath_tidinvalid); - - 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_ht_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, - dd->ipath_tidinvalid); -} - -/** - * ipath_ht_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_ht_tidtemplate(struct ipath_devdata *dd) -{ - dd->ipath_tidtemplate = dd->ipath_ibmaxlen >> 2; - dd->ipath_tidtemplate <<= INFINIPATH_RT_BUFSIZE_SHIFT; - dd->ipath_tidtemplate |= INFINIPATH_RT_VALID; - - /* - * work around chip errata bug 7358, by marking invalid tids - * as having max length - */ - dd->ipath_tidinvalid = (-1LL & INFINIPATH_RT_BUFSIZE_MASK) << - INFINIPATH_RT_BUFSIZE_SHIFT; -} - -static int ipath_ht_early_init(struct ipath_devdata *dd) -{ - u32 __iomem *piobuf; - u32 pioincr, val32; - int i; - - /* - * one cache line; long IB headers will spill over into received - * buffer - */ - dd->ipath_rcvhdrentsize = 16; - dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE; - - /* - * For HT, we allocate a somewhat overly large eager buffer, - * such that we can guarantee that we can receive the largest - * packet that we can send out. To truly support a 4KB MTU, - * we need to bump this to a large value. To date, other than - * testing, we have never encountered an HCA that can really - * send 4KB MTU packets, so we do not handle that (we'll get - * errors interrupts if we ever see one). - */ - dd->ipath_rcvegrbufsize = dd->ipath_piosize2k; - - /* - * 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_init_ibmaxlen = dd->ipath_ibmaxlen; - ipath_ht_tidtemplate(dd); - - /* - * zero all the TID entries at startup. We do this for sanity, - * in case of a previous driver crash of some kind, and also - * because the chip powers up with these memories in an unknown - * state. Use portcnt, not cfgports, since this is for the - * full chip, not for current (possibly different) configuration - * value. - * Chip Errata bug 6447 - */ - for (val32 = 0; val32 < dd->ipath_portcnt; val32++) - ipath_ht_clear_tids(dd, val32); - - /* - * write the pbc of each buffer, to be sure it's initialized, then - * cancel all the buffers, and also abort any packets that might - * have been in flight for some reason (the latter is for driver - * unload/reload, but isn't a bad idea at first init). PIO send - * isn't enabled at this point, so there is no danger of sending - * these out on the wire. - * Chip Errata bug 6610 - */ - piobuf = (u32 __iomem *) (((char __iomem *)(dd->ipath_kregbase)) + - dd->ipath_piobufbase); - pioincr = dd->ipath_palign / sizeof(*piobuf); - for (i = 0; i < dd->ipath_piobcnt2k; i++) { - /* - * reasonable word count, just to init pbc - */ - writel(16, piobuf); - piobuf += pioincr; - } - - ipath_get_eeprom_info(dd); - if (dd->ipath_boardrev == 5) { - /* - * Later production QHT7040 has same changes as QHT7140, so - * can use GPIO interrupts. They have serial #'s starting - * with 128, rather than 112. - */ - if (dd->ipath_serial[0] == '1' && - dd->ipath_serial[1] == '2' && - dd->ipath_serial[2] == '8') - dd->ipath_flags |= IPATH_GPIO_INTR; - else { - ipath_dev_err(dd, "Unsupported InfiniPath board " - "(serial number %.16s)!\n", - dd->ipath_serial); - return 1; - } - } - - if (dd->ipath_minrev >= 4) { - /* Rev4+ reports extra errors via internal GPIO pins */ - dd->ipath_flags |= IPATH_GPIO_ERRINTRS; - dd->ipath_gpio_mask |= IPATH_GPIO_ERRINTR_MASK; - ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, - dd->ipath_gpio_mask); - } - - return 0; -} - - -/** - * ipath_init_ht_get_base_info - set chip-specific flags for user code - * @dd: the infinipath device - * @kbase: ipath_base_info pointer - * - * We set the PCIE flag because the lower bandwidth on PCIe vs - * HyperTransport can affect some user packet algorithms. - */ -static int ipath_ht_get_base_info(struct ipath_portdata *pd, void *kbase) -{ - struct ipath_base_info *kinfo = kbase; - - kinfo->spi_runtime_flags |= IPATH_RUNTIME_HT | - IPATH_RUNTIME_PIO_REGSWAPPED; - - if (pd->port_dd->ipath_minrev < 4) - kinfo->spi_runtime_flags |= IPATH_RUNTIME_RCVHDR_COPY; - - return 0; -} - -static void ipath_ht_free_irq(struct ipath_devdata *dd) -{ - free_irq(dd->ipath_irq, dd); - ht_destroy_irq(dd->ipath_irq); - dd->ipath_irq = 0; - dd->ipath_intconfig = 0; -} - -static struct ipath_message_header * -ipath_ht_get_msgheader(struct ipath_devdata *dd, __le32 *rhf_addr) -{ - return (struct ipath_message_header *) - &rhf_addr[sizeof(u64) / sizeof(u32)]; -} - -static void ipath_ht_config_ports(struct ipath_devdata *dd, ushort cfgports) -{ - dd->ipath_portcnt = - ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt); - dd->ipath_p0_rcvegrcnt = - ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvegrcnt); -} - -static void ipath_ht_read_counters(struct ipath_devdata *dd, - struct infinipath_counters *cntrs) -{ - cntrs->LBIntCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBIntCnt)); - cntrs->LBFlowStallCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(LBFlowStallCnt)); - cntrs->TxSDmaDescCnt = 0; - cntrs->TxUnsupVLErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnsupVLErrCnt)); - cntrs->TxDataPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDataPktCnt)); - cntrs->TxFlowPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowPktCnt)); - cntrs->TxDwordCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDwordCnt)); - cntrs->TxLenErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxLenErrCnt)); - cntrs->TxMaxMinLenErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxMaxMinLenErrCnt)); - cntrs->TxUnderrunCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxUnderrunCnt)); - cntrs->TxFlowStallCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxFlowStallCnt)); - cntrs->TxDroppedPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(TxDroppedPktCnt)); - cntrs->RxDroppedPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDroppedPktCnt)); - cntrs->RxDataPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDataPktCnt)); - cntrs->RxFlowPktCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowPktCnt)); - cntrs->RxDwordCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxDwordCnt)); - cntrs->RxLenErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLenErrCnt)); - cntrs->RxMaxMinLenErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxMaxMinLenErrCnt)); - cntrs->RxICRCErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxICRCErrCnt)); - cntrs->RxVCRCErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxVCRCErrCnt)); - cntrs->RxFlowCtrlErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxFlowCtrlErrCnt)); - cntrs->RxBadFormatCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBadFormatCnt)); - cntrs->RxLinkProblemCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLinkProblemCnt)); - cntrs->RxEBPCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxEBPCnt)); - cntrs->RxLPCRCErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxLPCRCErrCnt)); - cntrs->RxBufOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxBufOvflCnt)); - cntrs->RxTIDFullErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDFullErrCnt)); - cntrs->RxTIDValidErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxTIDValidErrCnt)); - cntrs->RxPKeyMismatchCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxPKeyMismatchCnt)); - cntrs->RxP0HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt)); - cntrs->RxP1HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP1HdrEgrOvflCnt)); - cntrs->RxP2HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP2HdrEgrOvflCnt)); - cntrs->RxP3HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP3HdrEgrOvflCnt)); - cntrs->RxP4HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP4HdrEgrOvflCnt)); - cntrs->RxP5HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP5HdrEgrOvflCnt)); - cntrs->RxP6HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP6HdrEgrOvflCnt)); - cntrs->RxP7HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP7HdrEgrOvflCnt)); - cntrs->RxP8HdrEgrOvflCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(RxP8HdrEgrOvflCnt)); - cntrs->RxP9HdrEgrOvflCnt = 0; - cntrs->RxP10HdrEgrOvflCnt = 0; - cntrs->RxP11HdrEgrOvflCnt = 0; - cntrs->RxP12HdrEgrOvflCnt = 0; - cntrs->RxP13HdrEgrOvflCnt = 0; - cntrs->RxP14HdrEgrOvflCnt = 0; - cntrs->RxP15HdrEgrOvflCnt = 0; - cntrs->RxP16HdrEgrOvflCnt = 0; - cntrs->IBStatusChangeCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBStatusChangeCnt)); - cntrs->IBLinkErrRecoveryCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt)); - cntrs->IBLinkDownedCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBLinkDownedCnt)); - cntrs->IBSymbolErrCnt = - ipath_snap_cntr(dd, IPATH_CREG_OFFSET(IBSymbolErrCnt)); - cntrs->RxVL15DroppedPktCnt = 0; - cntrs->RxOtherLocalPhyErrCnt = 0; - cntrs->PcieRetryBufDiagQwordCnt = 0; - cntrs->ExcessBufferOvflCnt = dd->ipath_overrun_thresh_errs; - cntrs->LocalLinkIntegrityErrCnt = - (dd->ipath_flags & IPATH_GPIO_ERRINTRS) ? - dd->ipath_lli_errs : dd->ipath_lli_errors; - cntrs->RxVlErrCnt = 0; - cntrs->RxDlidFltrCnt = 0; -} - - -/* no interrupt fallback for these chips */ -static int ipath_ht_nointr_fallback(struct ipath_devdata *dd) -{ - return 0; -} - - -/* - * reset the XGXS (between serdes and IBC). Slightly less intrusive - * than resetting the IBC or external link state, and useful in some - * cases to cause some retraining. To do this right, we reset IBC - * as well. - */ -static void ipath_ht_xgxs_reset(struct ipath_devdata *dd) -{ - u64 val, prev_val; - - prev_val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); - val = prev_val | INFINIPATH_XGXS_RESET; - prev_val &= ~INFINIPATH_XGXS_RESET; /* be sure */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, - dd->ipath_control & ~INFINIPATH_C_LINKENABLE); - ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); - ipath_read_kreg32(dd, dd->ipath_kregs->kr_scratch); - ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, prev_val); - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, - dd->ipath_control); -} - - -static int ipath_ht_get_ib_cfg(struct ipath_devdata *dd, int which) -{ - int ret; - - switch (which) { - case IPATH_IB_CFG_LWID: - ret = dd->ipath_link_width_active; - break; - case IPATH_IB_CFG_SPD: - ret = dd->ipath_link_speed_active; - break; - case IPATH_IB_CFG_LWID_ENB: - ret = dd->ipath_link_width_enabled; - break; - case IPATH_IB_CFG_SPD_ENB: - ret = dd->ipath_link_speed_enabled; - break; - default: - ret = -ENOTSUPP; - break; - } - return ret; -} - - -/* we assume range checking is already done, if needed */ -static int ipath_ht_set_ib_cfg(struct ipath_devdata *dd, int which, u32 val) -{ - int ret = 0; - - if (which == IPATH_IB_CFG_LWID_ENB) - dd->ipath_link_width_enabled = val; - else if (which == IPATH_IB_CFG_SPD_ENB) - dd->ipath_link_speed_enabled = val; - else - ret = -ENOTSUPP; - return ret; -} - - -static void ipath_ht_config_jint(struct ipath_devdata *dd, u16 a, u16 b) -{ -} - - -static int ipath_ht_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs) -{ - ipath_setup_ht_setextled(dd, ipath_ib_linkstate(dd, ibcs), - ipath_ib_linktrstate(dd, ibcs)); - return 0; -} - - -/** - * ipath_init_iba6110_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_iba6110_funcs(struct ipath_devdata *dd) -{ - dd->ipath_f_intrsetup = ipath_ht_intconfig; - dd->ipath_f_bus = ipath_setup_ht_config; - dd->ipath_f_reset = ipath_setup_ht_reset; - dd->ipath_f_get_boardname = ipath_ht_boardname; - dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors; - dd->ipath_f_early_init = ipath_ht_early_init; - dd->ipath_f_handle_hwerrors = ipath_ht_handle_hwerrors; - dd->ipath_f_quiet_serdes = ipath_ht_quiet_serdes; - dd->ipath_f_bringup_serdes = ipath_ht_bringup_serdes; - dd->ipath_f_clear_tids = ipath_ht_clear_tids; - dd->ipath_f_put_tid = ipath_ht_put_tid; - dd->ipath_f_cleanup = ipath_setup_ht_cleanup; - dd->ipath_f_setextled = ipath_setup_ht_setextled; - dd->ipath_f_get_base_info = ipath_ht_get_base_info; - dd->ipath_f_free_irq = ipath_ht_free_irq; - dd->ipath_f_tidtemplate = ipath_ht_tidtemplate; - dd->ipath_f_intr_fallback = ipath_ht_nointr_fallback; - dd->ipath_f_get_msgheader = ipath_ht_get_msgheader; - dd->ipath_f_config_ports = ipath_ht_config_ports; - dd->ipath_f_read_counters = ipath_ht_read_counters; - dd->ipath_f_xgxs_reset = ipath_ht_xgxs_reset; - dd->ipath_f_get_ib_cfg = ipath_ht_get_ib_cfg; - dd->ipath_f_set_ib_cfg = ipath_ht_set_ib_cfg; - dd->ipath_f_config_jint = ipath_ht_config_jint; - dd->ipath_f_ib_updown = ipath_ht_ib_updown; - - /* - * initialize chip-specific variables - */ - ipath_init_ht_variables(dd); -} |