From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- drivers/message/fusion/mptdebug.h | 293 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 293 insertions(+) create mode 100644 drivers/message/fusion/mptdebug.h (limited to 'drivers/message/fusion/mptdebug.h') diff --git a/drivers/message/fusion/mptdebug.h b/drivers/message/fusion/mptdebug.h new file mode 100644 index 000000000..c281b1359 --- /dev/null +++ b/drivers/message/fusion/mptdebug.h @@ -0,0 +1,293 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * linux/drivers/message/fusion/mptdebug.h + * For use with LSI PCI chip/adapter(s) + * running LSI Fusion MPT (Message Passing Technology) firmware. + * + * Copyright (c) 1999-2008 LSI Corporation + * (mailto:DL-MPTFusionLinux@lsi.com) + * + */ +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ + +#ifndef MPTDEBUG_H_INCLUDED +#define MPTDEBUG_H_INCLUDED + +/* + * debug level can be programmed on the fly via SysFS (hex values) + * + * Example: (programming for MPT_DEBUG_EVENTS on host 5) + * + * echo 8 > /sys/class/scsi_host/host5/debug_level + * + * -------------------------------------------------------- + * mpt_debug_level - command line parameter + * this allow enabling debug at driver load time (for all iocs) + * + * Example (programming for MPT_DEBUG_EVENTS) + * + * insmod mptbase.ko mpt_debug_level=8 + * + * -------------------------------------------------------- + * CONFIG_FUSION_LOGGING - enables compiling debug into driver + * this can be enabled in the driver Makefile + * + * + * -------------------------------------------------------- + * Please note most debug prints are set to logging priority = debug + * This is the lowest level, and most verbose. Please refer to manual + * pages for syslogd or syslogd-ng on how to configure this. + */ + +#define MPT_DEBUG 0x00000001 +#define MPT_DEBUG_MSG_FRAME 0x00000002 +#define MPT_DEBUG_SG 0x00000004 +#define MPT_DEBUG_EVENTS 0x00000008 +#define MPT_DEBUG_VERBOSE_EVENTS 0x00000010 +#define MPT_DEBUG_INIT 0x00000020 +#define MPT_DEBUG_EXIT 0x00000040 +#define MPT_DEBUG_FAIL 0x00000080 +#define MPT_DEBUG_TM 0x00000100 +#define MPT_DEBUG_DV 0x00000200 +#define MPT_DEBUG_REPLY 0x00000400 +#define MPT_DEBUG_HANDSHAKE 0x00000800 +#define MPT_DEBUG_CONFIG 0x00001000 +#define MPT_DEBUG_DL 0x00002000 +#define MPT_DEBUG_RESET 0x00008000 +#define MPT_DEBUG_SCSI 0x00010000 +#define MPT_DEBUG_IOCTL 0x00020000 +#define MPT_DEBUG_FC 0x00080000 +#define MPT_DEBUG_SAS 0x00100000 +#define MPT_DEBUG_SAS_WIDE 0x00200000 +#define MPT_DEBUG_36GB_MEM 0x00400000 + +/* + * CONFIG_FUSION_LOGGING - enabled in Kconfig + */ + +#ifdef CONFIG_FUSION_LOGGING +#define MPT_CHECK_LOGGING(IOC, CMD, BITS) \ +do { \ + if (IOC->debug_level & BITS) \ + CMD; \ +} while (0) +#else +#define MPT_CHECK_LOGGING(IOC, CMD, BITS) \ +do { } while (0) +#endif + + +/* + * debug macros + */ + +#define dprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG) + +#define dsgprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SG) + +#define devtprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENTS) + +#define devtverboseprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_VERBOSE_EVENTS) + +#define dinitprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_INIT) + +#define dexitprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EXIT) + +#define dfailprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FAIL) + +#define dtmprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TM) + +#define ddvprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DV) + +#define dreplyprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_REPLY) + +#define dhsprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_HANDSHAKE) + +#define dcprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CONFIG) + +#define ddlprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DL) + +#define drsprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_RESET) + +#define dsprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SCSI) + +#define dctlprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_IOCTL) + +#define dfcprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FC) + +#define dsasprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS) + +#define dsaswideprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE) + +#define d36memprintk(IOC, CMD) \ + MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_36GB_MEM) + + +/* + * Verbose logging + */ +#if defined(MPT_DEBUG_VERBOSE) && defined(CONFIG_FUSION_LOGGING) +static inline void +DBG_DUMP_FW_DOWNLOAD(MPT_ADAPTER *ioc, u32 *mfp, int numfrags) +{ + int i; + + if (!(ioc->debug_level & MPT_DEBUG)) + return; + printk(KERN_DEBUG "F/W download request:\n"); + for (i=0; i < 7+numfrags*2; i++) + printk(" %08x", le32_to_cpu(mfp[i])); + printk("\n"); +} + +static inline void +DBG_DUMP_PUT_MSG_FRAME(MPT_ADAPTER *ioc, u32 *mfp) +{ + int ii, n; + + if (!(ioc->debug_level & MPT_DEBUG_MSG_FRAME)) + return; + printk(KERN_DEBUG "%s: About to Put msg frame @ %p:\n", + ioc->name, mfp); + n = ioc->req_sz/4 - 1; + while (mfp[n] == 0) + n--; + for (ii=0; ii<=n; ii++) { + if (ii && ((ii%8)==0)) + printk("\n"); + printk(" %08x", le32_to_cpu(mfp[ii])); + } + printk("\n"); +} + +static inline void +DBG_DUMP_FW_REQUEST_FRAME(MPT_ADAPTER *ioc, u32 *mfp) +{ + int i, n; + + if (!(ioc->debug_level & MPT_DEBUG_MSG_FRAME)) + return; + n = 10; + printk(KERN_INFO " "); + for (i = 0; i < n; i++) + printk(" %08x", le32_to_cpu(mfp[i])); + printk("\n"); +} + +static inline void +DBG_DUMP_REQUEST_FRAME(MPT_ADAPTER *ioc, u32 *mfp) +{ + int i, n; + + if (!(ioc->debug_level & MPT_DEBUG_MSG_FRAME)) + return; + n = 24; + for (i=0; idebug_level & MPT_DEBUG_MSG_FRAME)) + return; + n = (le32_to_cpu(mfp[0]) & 0x00FF0000) >> 16; + printk(KERN_INFO " "); + for (i=0; idebug_level & MPT_DEBUG_MSG_FRAME)) + return; + n = 3; + printk(KERN_INFO " "); + for (i=0; idebug_level & MPT_DEBUG_TM)) + return; + n = 13; + printk(KERN_DEBUG "TM_REQUEST:\n"); + for (i=0; idebug_level & MPT_DEBUG_TM)) + return; + n = (le32_to_cpu(mfp[0]) & 0x00FF0000) >> 16; + printk(KERN_DEBUG "TM_REPLY MessageLength=%d:\n", n); + for (i=0; i