summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/ipath/ipath_iba6120.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_iba6120.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_iba6120.c1862
1 files changed, 0 insertions, 1862 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
deleted file mode 100644
index 4b4a30b..0000000
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ /dev/null
@@ -1,1862 +0,0 @@
-/*
- * Copyright (c) 2006, 2007, 2008 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 PCIe chip.
- */
-
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <rdma/ib_verbs.h>
-
-#include "ipath_kernel.h"
-#include "ipath_registers.h"
-
-static void ipath_setup_pe_setextled(struct ipath_devdata *, u64, u64);
-
-/*
- * This file contains all the chip-specific register information and
- * access functions for the QLogic InfiniPath PCI-Express chip.
- *
- * This lists the InfiniPath registers, in the actual chip layout.
- * This structure should never be directly accessed.
- */
-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 Reserved0;
- unsigned long long SendRegBase;
- unsigned long long UserRegBase;
- unsigned long long CounterRegBase;
- unsigned long long Scratch;
- unsigned long long Reserved1;
- unsigned long long Reserved2;
- 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 Reserved3;
- unsigned long long RcvPktLEDCnt;
- unsigned long long Reserved4[8];
- 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 Reserved5;
- unsigned long long PCIeRBufTestReg0;
- unsigned long long PCIeRBufTestReg1;
- unsigned long long Reserved51[6];
- unsigned long long SendBufferError;
- unsigned long long SendBufferErrorCONT1;
- unsigned long long Reserved6SBE[6];
- unsigned long long RcvHdrAddr0;
- unsigned long long RcvHdrAddr1;
- unsigned long long RcvHdrAddr2;
- unsigned long long RcvHdrAddr3;
- unsigned long long RcvHdrAddr4;
- unsigned long long Reserved7RHA[11];
- unsigned long long RcvHdrTailAddr0;
- unsigned long long RcvHdrTailAddr1;
- unsigned long long RcvHdrTailAddr2;
- unsigned long long RcvHdrTailAddr3;
- unsigned long long RcvHdrTailAddr4;
- unsigned long long Reserved8RHTA[11];
- unsigned long long Reserved9SW[8];
- unsigned long long SerdesConfig0;
- unsigned long long SerdesConfig1;
- unsigned long long SerdesStatus;
- unsigned long long XGXSConfig;
- unsigned long long IBPLLCfg;
- unsigned long long Reserved10SW2[3];
- unsigned long long PCIEQ0SerdesConfig0;
- unsigned long long PCIEQ0SerdesConfig1;
- unsigned long long PCIEQ0SerdesStatus;
- unsigned long long Reserved11;
- unsigned long long PCIEQ1SerdesConfig0;
- unsigned long long PCIEQ1SerdesConfig1;
- unsigned long long PCIEQ1SerdesStatus;
- unsigned long long Reserved12;
-};
-
-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_pe_kregs = {
- .kr_control = IPATH_KREG_OFFSET(Control),
- .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase),
- .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_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),
- .kr_ibpllcfg = IPATH_KREG_OFFSET(IBPLLCfg),
-
- /*
- * 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),
-
- /* The rcvpktled register controls one of the debug port signals, so
- * a packet activity LED can be connected to it. */
- .kr_rcvpktledcnt = IPATH_KREG_OFFSET(RcvPktLEDCnt),
- .kr_pcierbuftestreg0 = IPATH_KREG_OFFSET(PCIeRBufTestReg0),
- .kr_pcierbuftestreg1 = IPATH_KREG_OFFSET(PCIeRBufTestReg1),
- .kr_pcieq0serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig0),
- .kr_pcieq0serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig1),
- .kr_pcieq0serdesstatus = IPATH_KREG_OFFSET(PCIEQ0SerdesStatus),
- .kr_pcieq1serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig0),
- .kr_pcieq1serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig1),
- .kr_pcieq1serdesstatus = IPATH_KREG_OFFSET(PCIEQ1SerdesStatus)
-};
-
-static const struct ipath_cregs ipath_pe_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),
- .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_control bits */
-#define INFINIPATH_C_RESET 1U
-
-/* kr_intstatus, kr_intclear, kr_intmask bits */
-#define INFINIPATH_I_RCVURG_MASK ((1U<<5)-1)
-#define INFINIPATH_I_RCVURG_SHIFT 0
-#define INFINIPATH_I_RCVAVAIL_MASK ((1U<<5)-1)
-#define INFINIPATH_I_RCVAVAIL_SHIFT 12
-
-/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */
-#define INFINIPATH_HWE_PCIEMEMPARITYERR_MASK 0x000000000000003fULL
-#define INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT 0
-#define INFINIPATH_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL
-#define INFINIPATH_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL
-#define INFINIPATH_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL
-#define INFINIPATH_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL
-#define INFINIPATH_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL
-#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL
-#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL
-#define INFINIPATH_HWE_PCIE1PLLFAILED 0x0400000000000000ULL
-#define INFINIPATH_HWE_PCIE0PLLFAILED 0x0800000000000000ULL
-#define INFINIPATH_HWE_SERDESPLLFAILED 0x1000000000000000ULL
-
-#define IBA6120_IBCS_LINKTRAININGSTATE_MASK 0xf
-#define IBA6120_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_FOUND 0x0000000000008000
-
-/* kr_xgxsconfig bits */
-#define INFINIPATH_XGXS_RESET 0x5ULL
-
-#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))
-
-#define INFINIPATH_RT_BUFSIZE_MASK 0xe0000000ULL
-#define INFINIPATH_RT_BUFSIZE_SHIFTVAL(tid) \
- ((((tid) & INFINIPATH_RT_BUFSIZE_MASK) >> 29) + 11 - 1)
-#define INFINIPATH_RT_BUFSIZE(tid) (1 << INFINIPATH_RT_BUFSIZE_SHIFTVAL(tid))
-#define INFINIPATH_RT_IS_VALID(tid) \
- (((tid) & INFINIPATH_RT_BUFSIZE_MASK) && \
- ((((tid) & INFINIPATH_RT_BUFSIZE_MASK) != INFINIPATH_RT_BUFSIZE_MASK)))
-#define INFINIPATH_RT_ADDR_MASK 0x1FFFFFFFULL /* 29 bits valid */
-#define INFINIPATH_RT_ADDR_SHIFT 10
-
-#define INFINIPATH_R_INTRAVAIL_SHIFT 16
-#define INFINIPATH_R_TAILUPD_SHIFT 31
-
-/* 6120 specific hardware errors... */
-static const struct ipath_hwerror_msgs ipath_6120_hwerror_msgs[] = {
- INFINIPATH_HWE_MSG(PCIEPOISONEDTLP, "PCIe Poisoned TLP"),
- INFINIPATH_HWE_MSG(PCIECPLTIMEOUT, "PCIe completion timeout"),
- /*
- * In practice, it's unlikely wthat we'll see PCIe PLL, or bus
- * parity or memory parity error failures, because most likely we
- * won't be able to talk to the core of the chip. Nonetheless, we
- * might see them, if they are in parts of the PCIe core that aren't
- * essential.
- */
- INFINIPATH_HWE_MSG(PCIE1PLLFAILED, "PCIePLL1"),
- INFINIPATH_HWE_MSG(PCIE0PLLFAILED, "PCIePLL0"),
- INFINIPATH_HWE_MSG(PCIEBUSPARITYXTLH, "PCIe XTLH core parity"),
- INFINIPATH_HWE_MSG(PCIEBUSPARITYXADM, "PCIe ADM TX core parity"),
- INFINIPATH_HWE_MSG(PCIEBUSPARITYRADM, "PCIe ADM RX core parity"),
- 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_pe_put_tid_2(struct ipath_devdata *, u64 __iomem *,
- u32, unsigned long);
-
-/*
- * On platforms using this chip, and not having ordered WC stores, we
- * can get TXE parity errors due to speculative reads to the PIO buffers,
- * and this, due to a chip bug can result in (many) false parity error
- * reports. So it's a debug print on those, and an info print on systems
- * where the speculative reads don't occur.
- */
-static void ipath_pe_txe_recover(struct ipath_devdata *dd)
-{
- if (ipath_unordered_wc())
- ipath_dbg("Recovering from TXE PIO parity error\n");
- else {
- ++ipath_stats.sps_txeparity;
- dev_info(&dd->pcidev->dev,
- "Recovering from TXE PIO parity error\n");
- }
-}
-
-
-/**
- * ipath_pe_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_pe_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) {
- /*
- * better than printing cofusing messages
- * This seems to be related to clearing the crc error, or
- * the pll error during init.
- */
- ipath_cdbg(VERBOSE, "Called but no hardware errors set\n");
- return;
- } else if (hwerrs == ~0ULL) {
- ipath_dev_err(dd, "Read of hardware error status failed "
- "(all bits set); ignoring\n");
- return;
- }
- 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,
- * 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_pe_txe_recover(dd);
- hwerrs &= ~TXE_PIO_PARITY;
- }
- if (!hwerrs) {
- static u32 freeze_cnt;
-
- freeze_cnt++;
- ipath_dbg("Clearing freezemode on ignored or recovered "
- "hardware error (%u)\n", freeze_cnt);
- ipath_clear_freeze(dd);
- }
- }
-
- *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 external
- * 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.
- */
- ipath_dev_err(dd, "%s hardware error\n", msg);
- if (dd->ipath_flags & IPATH_INITTED) {
- ipath_set_linkstate(dd, IPATH_IB_LINKDOWN);
- ipath_setup_pe_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 (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg && msg) {
- /*
- * for /sys status file ; if no trailing brace 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;
- if (dd->ipath_minrev >= 2)
- dd->ipath_f_put_tid = ipath_pe_put_tid_2;
- }
-
- /*
- * 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);
-
- 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");
- if (extsval & INFINIPATH_EXTS_MEMBIST_FOUND)
- ipath_dbg("MemBIST corrected\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);
- }
-
- dd->ibdeltainprog = 1;
- dd->ibsymsnap =
- ipath_read_creg32(dd, dd->ipath_cregs->cr_ibsymbolerrcnt);
- dd->iblnkerrsnap =
- ipath_read_creg32(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt);
-
- 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_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 (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));
-
- 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);
-
- if (dd->ibsymdelta || dd->iblnkerrdelta ||
- dd->ibdeltainprog) {
- u64 diagc;
- /* enable counter writes */
- diagc = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwdiagctrl);
- ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl,
- diagc | INFINIPATH_DC_COUNTERWREN);
-
- if (dd->ibsymdelta || dd->ibdeltainprog) {
- val = ipath_read_creg32(dd,
- dd->ipath_cregs->cr_ibsymbolerrcnt);
- if (dd->ibdeltainprog)
- val -= val - dd->ibsymsnap;
- val -= dd->ibsymdelta;
- ipath_write_creg(dd,
- dd->ipath_cregs->cr_ibsymbolerrcnt, val);
- }
- if (dd->iblnkerrdelta || dd->ibdeltainprog) {
- val = ipath_read_creg32(dd,
- dd->ipath_cregs->cr_iblinkerrrecovcnt);
- if (dd->ibdeltainprog)
- val -= val - dd->iblnkerrsnap;
- val -= dd->iblnkerrdelta;
- ipath_write_creg(dd,
- dd->ipath_cregs->cr_iblinkerrrecovcnt, val);
- }
-
- /* and disable counter writes */
- ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl, diagc);
- }
- 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)
-{
- 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;
- 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_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;
- 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);
- 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);
- spin_unlock_irqrestore(&dd->ipath_gpio_lock, flags);
-}
-
-/**
- * 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);
-}
-
-static void ipath_6120_pcie_params(struct ipath_devdata *dd)
-{
- u16 linkstat, speed;
- int pos;
-
- pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_EXP);
- if (!pos) {
- ipath_dev_err(dd, "Can't find PCI Express capability!\n");
- goto bail;
- }
-
- pci_read_config_word(dd->pcidev, pos + PCI_EXP_LNKSTA,
- &linkstat);
- /*
- * speed is bits 0-4, linkwidth is bits 4-8
- * no defines for them in headers
- */
- speed = linkstat & 0xf;
- linkstat >>= 4;
- linkstat &= 0x1f;
- dd->ipath_lbus_width = linkstat;
-
- switch (speed) {
- case 1:
- dd->ipath_lbus_speed = 2500; /* Gen1, 2.5GHz */
- break;
- case 2:
- dd->ipath_lbus_speed = 5000; /* Gen1, 5GHz */
- break;
- default: /* not defined, assume gen1 */
- dd->ipath_lbus_speed = 2500;
- break;
- }
-
- if (linkstat < 8)
- ipath_dev_err(dd,
- "PCIe width %u (x8 HCA), performance reduced\n",
- linkstat);
- else
- ipath_cdbg(VERBOSE, "PCIe speed %u width %u (x8 HCA)\n",
- dd->ipath_lbus_speed, linkstat);
-
- if (speed != 1)
- ipath_dev_err(dd,
- "PCIe linkspeed %u is incorrect; "
- "should be 1 (2500)!\n", speed);
-bail:
- /* fill in string, even on errors */
- snprintf(dd->ipath_lbus_info, sizeof(dd->ipath_lbus_info),
- "PCIe,%uMHz,x%u\n",
- dd->ipath_lbus_speed,
- dd->ipath_lbus_width);
-
- return;
-}
-
-/**
- * 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");
-
- ipath_6120_pcie_params(dd);
-
- 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;
- return 0;
-}
-
-static void ipath_init_pe_variables(struct ipath_devdata *dd)
-{
- /*
- * setup the register offsets, since they are different for each
- * chip
- */
- dd->ipath_kregs = &ipath_pe_kregs;
- dd->ipath_cregs = &ipath_pe_cregs;
-
- /*
- * 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;
-
- /*
- * 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 = IBA6120_IBCS_LINKSTATE_SHIFT;
- dd->ibcs_lts_mask = IBA6120_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 IBA6120 */
-
- /* 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;
- 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;
-
- /* Ignore errors in PIO/PBC on systems with unordered write-combining */
- if (ipath_unordered_wc())
- dd->ipath_eep_st_masks[0].hwerrs_to_log &= ~TXE_PIO_PARITY;
-
- 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 */
-}
-
-/* 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;
- u16 cmdval;
-
- pci_read_config_word(dd->pcidev, PCI_COMMAND, &cmdval);
-
- /* 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 */
- pci_write_config_word(dd->pcidev, PCI_COMMAND, cmdval);
- if ((r = pci_enable_device(dd->pcidev)))
- ipath_dev_err(dd, "pci_enable_device failed after "
- "reset: %d\n", r);
- /*
- * whether it fully enabled or not, mark as present,
- * again (but not INITTED)
- */
- 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:
- if (ret)
- ipath_6120_pcie_params(dd);
- return ret;
-}
-
-/**
- * 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_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 */
- int tidx;
- spinlock_t *tidlockp;
-
- if (!dd->ipath_kregbase)
- return;
-
- 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 & ~INFINIPATH_RT_ADDR_MASK)
- ipath_dev_err(dd,
- "BUG: Physical page address 0x%lx "
- "has bits set in 31-29\n", pa);
-
- if (type == RCVHQ_RCV_TYPE_EAGER)
- pa |= dd->ipath_tidtemplate;
- else /* for now, always full 4KB page */
- pa |= 2 << 29;
- }
-
- /*
- * Workaround chip bug 9437 by writing the scratch register
- * before and after the TID, and with an io write barrier.
- * We use a spinlock around the writes, so they can't intermix
- * with other TID (eager or expected) writes (the chip bug
- * is triggered by back to back TID writes). Unfortunately, this
- * call can be done from interrupt level for the port 0 eager TIDs,
- * so we have to use irqsave locks.
- */
- /*
- * Assumes tidptr always > ipath_egrtidbase
- * if type == RCVHQ_RCV_TYPE_EAGER.
- */
- tidx = tidptr - dd->ipath_egrtidbase;
-
- tidlockp = (type == RCVHQ_RCV_TYPE_EAGER && tidx < dd->ipath_rcvegrcnt)
- ? &dd->ipath_kernel_tid_lock : &dd->ipath_user_tid_lock;
- spin_lock_irqsave(tidlockp, flags);
- ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xfeeddeaf);
- writel(pa, tidp32);
- ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xdeadbeef);
- mmiowb();
- spin_unlock_irqrestore(tidlockp, 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 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 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;
- u32 tidx;
-
- if (!dd->ipath_kregbase)
- return;
-
- 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 & ~INFINIPATH_RT_ADDR_MASK)
- ipath_dev_err(dd,
- "BUG: Physical page address 0x%lx "
- "has bits set in 31-29\n", pa);
-
- if (type == RCVHQ_RCV_TYPE_EAGER)
- pa |= dd->ipath_tidtemplate;
- else /* for now, always full 4KB page */
- pa |= 2 << 29;
- }
- tidx = tidptr - dd->ipath_egrtidbase;
- 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++)
- dd->ipath_f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED,
- 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++)
- dd->ipath_f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER,
- 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;
- if (ipath_unordered_wc())
- dd->ipath_flags |= IPATH_PIO_FLUSH_WC;
-
- /*
- * 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;
- dd->ipath_rhf_offset = 0;
- dd->ipath_egrtidbase = (u64 __iomem *)
- ((char __iomem *) dd->ipath_kregbase + dd->ipath_rcvegrbase);
-
- dd->ipath_rcvegrbufsize = ipath_mtu4096 ? 4096 : 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(ipath_mtu4096 ? dd->ipath_piosize4k :
- 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 algorithms.
- */
-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;
-
-done:
- kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE |
- IPATH_RUNTIME_FORCE_PIOAVAIL | IPATH_RUNTIME_PIO_REGSWAPPED;
- return 0;
-}
-
-static void ipath_pe_free_irq(struct ipath_devdata *dd)
-{
- free_irq(dd->ipath_irq, dd);
- dd->ipath_irq = 0;
-}
-
-
-static struct ipath_message_header *
-ipath_pe_get_msgheader(struct ipath_devdata *dd, __le32 *rhf_addr)
-{
- return (struct ipath_message_header *)
- &rhf_addr[sizeof(u64) / sizeof(u32)];
-}
-
-static void ipath_pe_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_pe_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 = 0;
- cntrs->RxP6HdrEgrOvflCnt = 0;
- cntrs->RxP7HdrEgrOvflCnt = 0;
- cntrs->RxP8HdrEgrOvflCnt = 0;
- 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_lli_errs;
- cntrs->RxVlErrCnt = 0;
- cntrs->RxDlidFltrCnt = 0;
-}
-
-
-/* no interrupt fallback for these chips */
-static int ipath_pe_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_pe_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_pe_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_pe_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_pe_config_jint(struct ipath_devdata *dd, u16 a, u16 b)
-{
-}
-
-
-static int ipath_pe_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
-{
- if (ibup) {
- if (dd->ibdeltainprog) {
- dd->ibdeltainprog = 0;
- dd->ibsymdelta +=
- ipath_read_creg32(dd,
- dd->ipath_cregs->cr_ibsymbolerrcnt) -
- dd->ibsymsnap;
- dd->iblnkerrdelta +=
- ipath_read_creg32(dd,
- dd->ipath_cregs->cr_iblinkerrrecovcnt) -
- dd->iblnkerrsnap;
- }
- } else {
- dd->ipath_lli_counter = 0;
- if (!dd->ibdeltainprog) {
- dd->ibdeltainprog = 1;
- dd->ibsymsnap =
- ipath_read_creg32(dd,
- dd->ipath_cregs->cr_ibsymbolerrcnt);
- dd->iblnkerrsnap =
- ipath_read_creg32(dd,
- dd->ipath_cregs->cr_iblinkerrrecovcnt);
- }
- }
-
- ipath_setup_pe_setextled(dd, ipath_ib_linkstate(dd, ibcs),
- ipath_ib_linktrstate(dd, ibcs));
- return 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;
- /*
- * _f_put_tid may get changed after we read the chip revision,
- * but we start with the safe version for all revs
- */
- 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;
- dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
- dd->ipath_f_intr_fallback = ipath_pe_nointr_fallback;
- dd->ipath_f_xgxs_reset = ipath_pe_xgxs_reset;
- dd->ipath_f_get_msgheader = ipath_pe_get_msgheader;
- dd->ipath_f_config_ports = ipath_pe_config_ports;
- dd->ipath_f_read_counters = ipath_pe_read_counters;
- dd->ipath_f_get_ib_cfg = ipath_pe_get_ib_cfg;
- dd->ipath_f_set_ib_cfg = ipath_pe_set_ib_cfg;
- dd->ipath_f_config_jint = ipath_pe_config_jint;
- dd->ipath_f_ib_updown = ipath_pe_ib_updown;
-
-
- /* initialize chip-specific variables */
- ipath_init_pe_variables(dd);
-}
-
OpenPOWER on IntegriCloud