9133 lines
248 KiB
C
9133 lines
248 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Linux MegaRAID driver for SAS based RAID controllers
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*
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* Copyright (c) 2003-2013 LSI Corporation
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* Copyright (c) 2013-2016 Avago Technologies
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* Copyright (c) 2016-2018 Broadcom Inc.
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*
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* Authors: Broadcom Inc.
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* Sreenivas Bagalkote
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* Sumant Patro
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* Bo Yang
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* Adam Radford
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* Kashyap Desai <kashyap.desai@broadcom.com>
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* Sumit Saxena <sumit.saxena@broadcom.com>
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*
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* Send feedback to: megaraidlinux.pdl@broadcom.com
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/list.h>
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#include <linux/moduleparam.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/uio.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <asm/unaligned.h>
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#include <linux/fs.h>
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#include <linux/compat.h>
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#include <linux/blkdev.h>
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#include <linux/mutex.h>
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#include <linux/poll.h>
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#include <linux/vmalloc.h>
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#include <linux/irq_poll.h>
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#include <linux/blk-mq-pci.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/scsi_dbg.h>
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#include "megaraid_sas_fusion.h"
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#include "megaraid_sas.h"
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/*
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* Number of sectors per IO command
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* Will be set in megasas_init_mfi if user does not provide
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*/
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static unsigned int max_sectors;
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module_param_named(max_sectors, max_sectors, int, 0444);
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MODULE_PARM_DESC(max_sectors,
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"Maximum number of sectors per IO command");
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static int msix_disable;
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module_param(msix_disable, int, 0444);
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MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
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static unsigned int msix_vectors;
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module_param(msix_vectors, int, 0444);
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MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
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static int allow_vf_ioctls;
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module_param(allow_vf_ioctls, int, 0444);
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MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
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static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
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module_param(throttlequeuedepth, int, 0444);
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MODULE_PARM_DESC(throttlequeuedepth,
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"Adapter queue depth when throttled due to I/O timeout. Default: 16");
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unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
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module_param(resetwaittime, int, 0444);
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MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s");
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static int smp_affinity_enable = 1;
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module_param(smp_affinity_enable, int, 0444);
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MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)");
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static int rdpq_enable = 1;
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module_param(rdpq_enable, int, 0444);
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MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)");
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unsigned int dual_qdepth_disable;
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module_param(dual_qdepth_disable, int, 0444);
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MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
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static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
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module_param(scmd_timeout, int, 0444);
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MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
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int perf_mode = -1;
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module_param(perf_mode, int, 0444);
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MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t"
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"0 - balanced: High iops and low latency queues are allocated &\n\t\t"
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"interrupt coalescing is enabled only on high iops queues\n\t\t"
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"1 - iops: High iops queues are not allocated &\n\t\t"
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"interrupt coalescing is enabled on all queues\n\t\t"
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"2 - latency: High iops queues are not allocated &\n\t\t"
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"interrupt coalescing is disabled on all queues\n\t\t"
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"default mode is 'balanced'"
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);
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int event_log_level = MFI_EVT_CLASS_CRITICAL;
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module_param(event_log_level, int, 0644);
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MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)");
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unsigned int enable_sdev_max_qd;
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module_param(enable_sdev_max_qd, int, 0444);
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MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0");
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int poll_queues;
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module_param(poll_queues, int, 0444);
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MODULE_PARM_DESC(poll_queues, "Number of queues to be use for io_uring poll mode.\n\t\t"
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"This parameter is effective only if host_tagset_enable=1 &\n\t\t"
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"It is not applicable for MFI_SERIES. &\n\t\t"
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"Driver will work in latency mode. &\n\t\t"
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"High iops queues are not allocated &\n\t\t"
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);
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int host_tagset_enable = 1;
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module_param(host_tagset_enable, int, 0444);
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MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(MEGASAS_VERSION);
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MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");
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MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver");
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int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
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static int megasas_get_pd_list(struct megasas_instance *instance);
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static int megasas_ld_list_query(struct megasas_instance *instance,
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u8 query_type);
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static int megasas_issue_init_mfi(struct megasas_instance *instance);
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static int megasas_register_aen(struct megasas_instance *instance,
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u32 seq_num, u32 class_locale_word);
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static void megasas_get_pd_info(struct megasas_instance *instance,
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struct scsi_device *sdev);
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static void
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megasas_set_ld_removed_by_fw(struct megasas_instance *instance);
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/*
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* PCI ID table for all supported controllers
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*/
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static struct pci_device_id megasas_pci_table[] = {
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
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/* xscale IOP */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
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/* ppc IOP */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
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/* ppc IOP */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
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/* gen2*/
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
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/* gen2*/
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
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/* skinny*/
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
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/* skinny*/
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
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/* xscale IOP, vega */
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{PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
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/* xscale IOP */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
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/* Fusion */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
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/* Plasma */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
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/* Invader */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
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/* Fury */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
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/* Intruder */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
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/* Intruder 24 port*/
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
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/* VENTURA */
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)},
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{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)},
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{}
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};
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MODULE_DEVICE_TABLE(pci, megasas_pci_table);
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static int megasas_mgmt_majorno;
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struct megasas_mgmt_info megasas_mgmt_info;
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static struct fasync_struct *megasas_async_queue;
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static DEFINE_MUTEX(megasas_async_queue_mutex);
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static int megasas_poll_wait_aen;
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static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
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static u32 support_poll_for_event;
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u32 megasas_dbg_lvl;
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static u32 support_device_change;
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static bool support_nvme_encapsulation;
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static bool support_pci_lane_margining;
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/* define lock for aen poll */
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static DEFINE_SPINLOCK(poll_aen_lock);
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extern struct dentry *megasas_debugfs_root;
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extern int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num);
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void
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megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
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u8 alt_status);
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static u32
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megasas_read_fw_status_reg_gen2(struct megasas_instance *instance);
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static int
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megasas_adp_reset_gen2(struct megasas_instance *instance,
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struct megasas_register_set __iomem *reg_set);
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static irqreturn_t megasas_isr(int irq, void *devp);
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static u32
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megasas_init_adapter_mfi(struct megasas_instance *instance);
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u32
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megasas_build_and_issue_cmd(struct megasas_instance *instance,
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struct scsi_cmnd *scmd);
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static void megasas_complete_cmd_dpc(unsigned long instance_addr);
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int
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wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
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int seconds);
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void megasas_fusion_ocr_wq(struct work_struct *work);
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static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
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int initial);
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static int
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megasas_set_dma_mask(struct megasas_instance *instance);
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static int
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megasas_alloc_ctrl_mem(struct megasas_instance *instance);
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static inline void
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megasas_free_ctrl_mem(struct megasas_instance *instance);
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static inline int
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megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
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static inline void
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megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
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static inline void
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megasas_init_ctrl_params(struct megasas_instance *instance);
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u32 megasas_readl(struct megasas_instance *instance,
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const volatile void __iomem *addr)
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{
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u32 i = 0, ret_val;
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/*
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* Due to a HW errata in Aero controllers, reads to certain
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* Fusion registers could intermittently return all zeroes.
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* This behavior is transient in nature and subsequent reads will
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* return valid value. As a workaround in driver, retry readl for
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* upto three times until a non-zero value is read.
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*/
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if (instance->adapter_type == AERO_SERIES) {
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do {
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ret_val = readl(addr);
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i++;
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} while (ret_val == 0 && i < 3);
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return ret_val;
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} else {
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return readl(addr);
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}
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}
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/**
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* megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
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* @instance: Adapter soft state
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* @dcmd: DCMD frame inside MFI command
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* @dma_addr: DMA address of buffer to be passed to FW
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* @dma_len: Length of DMA buffer to be passed to FW
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* @return: void
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*/
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void megasas_set_dma_settings(struct megasas_instance *instance,
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struct megasas_dcmd_frame *dcmd,
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dma_addr_t dma_addr, u32 dma_len)
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{
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if (instance->consistent_mask_64bit) {
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dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
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dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
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dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
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} else {
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dcmd->sgl.sge32[0].phys_addr =
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cpu_to_le32(lower_32_bits(dma_addr));
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dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
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dcmd->flags = cpu_to_le16(dcmd->flags);
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}
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}
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static void
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megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
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{
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instance->instancet->fire_cmd(instance,
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cmd->frame_phys_addr, 0, instance->reg_set);
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return;
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}
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/**
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* megasas_get_cmd - Get a command from the free pool
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* @instance: Adapter soft state
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*
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* Returns a free command from the pool
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*/
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struct megasas_cmd *megasas_get_cmd(struct megasas_instance
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*instance)
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{
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unsigned long flags;
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struct megasas_cmd *cmd = NULL;
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spin_lock_irqsave(&instance->mfi_pool_lock, flags);
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if (!list_empty(&instance->cmd_pool)) {
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cmd = list_entry((&instance->cmd_pool)->next,
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struct megasas_cmd, list);
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list_del_init(&cmd->list);
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} else {
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dev_err(&instance->pdev->dev, "Command pool empty!\n");
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}
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spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
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return cmd;
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}
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/**
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* megasas_return_cmd - Return a cmd to free command pool
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* @instance: Adapter soft state
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* @cmd: Command packet to be returned to free command pool
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*/
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void
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megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
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{
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unsigned long flags;
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u32 blk_tags;
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struct megasas_cmd_fusion *cmd_fusion;
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struct fusion_context *fusion = instance->ctrl_context;
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/* This flag is used only for fusion adapter.
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* Wait for Interrupt for Polled mode DCMD
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*/
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if (cmd->flags & DRV_DCMD_POLLED_MODE)
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return;
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spin_lock_irqsave(&instance->mfi_pool_lock, flags);
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if (fusion) {
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blk_tags = instance->max_scsi_cmds + cmd->index;
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cmd_fusion = fusion->cmd_list[blk_tags];
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megasas_return_cmd_fusion(instance, cmd_fusion);
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}
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cmd->scmd = NULL;
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cmd->frame_count = 0;
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cmd->flags = 0;
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memset(cmd->frame, 0, instance->mfi_frame_size);
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cmd->frame->io.context = cpu_to_le32(cmd->index);
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if (!fusion && reset_devices)
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cmd->frame->hdr.cmd = MFI_CMD_INVALID;
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list_add(&cmd->list, (&instance->cmd_pool)->next);
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spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
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}
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static const char *
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format_timestamp(uint32_t timestamp)
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{
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static char buffer[32];
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if ((timestamp & 0xff000000) == 0xff000000)
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snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
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0x00ffffff);
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else
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snprintf(buffer, sizeof(buffer), "%us", timestamp);
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return buffer;
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}
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static const char *
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format_class(int8_t class)
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{
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static char buffer[6];
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switch (class) {
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case MFI_EVT_CLASS_DEBUG:
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return "debug";
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case MFI_EVT_CLASS_PROGRESS:
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return "progress";
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case MFI_EVT_CLASS_INFO:
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return "info";
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case MFI_EVT_CLASS_WARNING:
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return "WARN";
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case MFI_EVT_CLASS_CRITICAL:
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return "CRIT";
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case MFI_EVT_CLASS_FATAL:
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return "FATAL";
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case MFI_EVT_CLASS_DEAD:
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return "DEAD";
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default:
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snprintf(buffer, sizeof(buffer), "%d", class);
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return buffer;
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}
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}
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/**
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* megasas_decode_evt: Decode FW AEN event and print critical event
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* for information.
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|
* @instance: Adapter soft state
|
|
*/
|
|
static void
|
|
megasas_decode_evt(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_evt_detail *evt_detail = instance->evt_detail;
|
|
union megasas_evt_class_locale class_locale;
|
|
class_locale.word = le32_to_cpu(evt_detail->cl.word);
|
|
|
|
if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
|
|
(event_log_level > MFI_EVT_CLASS_DEAD)) {
|
|
printk(KERN_WARNING "megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n");
|
|
event_log_level = MFI_EVT_CLASS_CRITICAL;
|
|
}
|
|
|
|
if (class_locale.members.class >= event_log_level)
|
|
dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
|
|
le32_to_cpu(evt_detail->seq_num),
|
|
format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
|
|
(class_locale.members.locale),
|
|
format_class(class_locale.members.class),
|
|
evt_detail->description);
|
|
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"evt_detail.args.ld.target_id/index %d/%d\n",
|
|
evt_detail->args.ld.target_id, evt_detail->args.ld.ld_index);
|
|
|
|
}
|
|
|
|
/*
|
|
* The following functions are defined for xscale
|
|
* (deviceid : 1064R, PERC5) controllers
|
|
*/
|
|
|
|
/**
|
|
* megasas_enable_intr_xscale - Enables interrupts
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_enable_intr_xscale(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
|
|
regs = instance->reg_set;
|
|
writel(0, &(regs)->outbound_intr_mask);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_disable_intr_xscale -Disables interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_disable_intr_xscale(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
u32 mask = 0x1f;
|
|
|
|
regs = instance->reg_set;
|
|
writel(mask, ®s->outbound_intr_mask);
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_read_fw_status_reg_xscale - returns the current FW status value
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_msg_0);
|
|
}
|
|
/**
|
|
* megasas_clear_intr_xscale - Check & clear interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int
|
|
megasas_clear_intr_xscale(struct megasas_instance *instance)
|
|
{
|
|
u32 status;
|
|
u32 mfiStatus = 0;
|
|
struct megasas_register_set __iomem *regs;
|
|
regs = instance->reg_set;
|
|
|
|
/*
|
|
* Check if it is our interrupt
|
|
*/
|
|
status = readl(®s->outbound_intr_status);
|
|
|
|
if (status & MFI_OB_INTR_STATUS_MASK)
|
|
mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
|
|
if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
|
|
mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
|
|
|
|
/*
|
|
* Clear the interrupt by writing back the same value
|
|
*/
|
|
if (mfiStatus)
|
|
writel(status, ®s->outbound_intr_status);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_status);
|
|
|
|
return mfiStatus;
|
|
}
|
|
|
|
/**
|
|
* megasas_fire_cmd_xscale - Sends command to the FW
|
|
* @instance: Adapter soft state
|
|
* @frame_phys_addr : Physical address of cmd
|
|
* @frame_count : Number of frames for the command
|
|
* @regs : MFI register set
|
|
*/
|
|
static inline void
|
|
megasas_fire_cmd_xscale(struct megasas_instance *instance,
|
|
dma_addr_t frame_phys_addr,
|
|
u32 frame_count,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
writel((frame_phys_addr >> 3)|(frame_count),
|
|
&(regs)->inbound_queue_port);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* megasas_adp_reset_xscale - For controller reset
|
|
* @instance: Adapter soft state
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_adp_reset_xscale(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
u32 i;
|
|
u32 pcidata;
|
|
|
|
writel(MFI_ADP_RESET, ®s->inbound_doorbell);
|
|
|
|
for (i = 0; i < 3; i++)
|
|
msleep(1000); /* sleep for 3 secs */
|
|
pcidata = 0;
|
|
pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
|
|
dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
|
|
if (pcidata & 0x2) {
|
|
dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
|
|
pcidata &= ~0x2;
|
|
pci_write_config_dword(instance->pdev,
|
|
MFI_1068_PCSR_OFFSET, pcidata);
|
|
|
|
for (i = 0; i < 2; i++)
|
|
msleep(1000); /* need to wait 2 secs again */
|
|
|
|
pcidata = 0;
|
|
pci_read_config_dword(instance->pdev,
|
|
MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
|
|
dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
|
|
if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
|
|
dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
|
|
pcidata = 0;
|
|
pci_write_config_dword(instance->pdev,
|
|
MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_xscale - For controller reset check
|
|
* @instance: Adapter soft state
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_check_reset_xscale(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
|
|
(le32_to_cpu(*instance->consumer) ==
|
|
MEGASAS_ADPRESET_INPROG_SIGN))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static struct megasas_instance_template megasas_instance_template_xscale = {
|
|
|
|
.fire_cmd = megasas_fire_cmd_xscale,
|
|
.enable_intr = megasas_enable_intr_xscale,
|
|
.disable_intr = megasas_disable_intr_xscale,
|
|
.clear_intr = megasas_clear_intr_xscale,
|
|
.read_fw_status_reg = megasas_read_fw_status_reg_xscale,
|
|
.adp_reset = megasas_adp_reset_xscale,
|
|
.check_reset = megasas_check_reset_xscale,
|
|
.service_isr = megasas_isr,
|
|
.tasklet = megasas_complete_cmd_dpc,
|
|
.init_adapter = megasas_init_adapter_mfi,
|
|
.build_and_issue_cmd = megasas_build_and_issue_cmd,
|
|
.issue_dcmd = megasas_issue_dcmd,
|
|
};
|
|
|
|
/*
|
|
* This is the end of set of functions & definitions specific
|
|
* to xscale (deviceid : 1064R, PERC5) controllers
|
|
*/
|
|
|
|
/*
|
|
* The following functions are defined for ppc (deviceid : 0x60)
|
|
* controllers
|
|
*/
|
|
|
|
/**
|
|
* megasas_enable_intr_ppc - Enables interrupts
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_enable_intr_ppc(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
|
|
regs = instance->reg_set;
|
|
writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
|
|
|
|
writel(~0x80000000, &(regs)->outbound_intr_mask);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_disable_intr_ppc - Disable interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_disable_intr_ppc(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
u32 mask = 0xFFFFFFFF;
|
|
|
|
regs = instance->reg_set;
|
|
writel(mask, ®s->outbound_intr_mask);
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_read_fw_status_reg_ppc - returns the current FW status value
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_intr_ppc - Check & clear interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int
|
|
megasas_clear_intr_ppc(struct megasas_instance *instance)
|
|
{
|
|
u32 status, mfiStatus = 0;
|
|
struct megasas_register_set __iomem *regs;
|
|
regs = instance->reg_set;
|
|
|
|
/*
|
|
* Check if it is our interrupt
|
|
*/
|
|
status = readl(®s->outbound_intr_status);
|
|
|
|
if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
|
|
mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
|
|
|
|
if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
|
|
mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
|
|
|
|
/*
|
|
* Clear the interrupt by writing back the same value
|
|
*/
|
|
writel(status, ®s->outbound_doorbell_clear);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_doorbell_clear);
|
|
|
|
return mfiStatus;
|
|
}
|
|
|
|
/**
|
|
* megasas_fire_cmd_ppc - Sends command to the FW
|
|
* @instance: Adapter soft state
|
|
* @frame_phys_addr: Physical address of cmd
|
|
* @frame_count: Number of frames for the command
|
|
* @regs: MFI register set
|
|
*/
|
|
static inline void
|
|
megasas_fire_cmd_ppc(struct megasas_instance *instance,
|
|
dma_addr_t frame_phys_addr,
|
|
u32 frame_count,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
writel((frame_phys_addr | (frame_count<<1))|1,
|
|
&(regs)->inbound_queue_port);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_ppc - For controller reset check
|
|
* @instance: Adapter soft state
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_check_reset_ppc(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct megasas_instance_template megasas_instance_template_ppc = {
|
|
|
|
.fire_cmd = megasas_fire_cmd_ppc,
|
|
.enable_intr = megasas_enable_intr_ppc,
|
|
.disable_intr = megasas_disable_intr_ppc,
|
|
.clear_intr = megasas_clear_intr_ppc,
|
|
.read_fw_status_reg = megasas_read_fw_status_reg_ppc,
|
|
.adp_reset = megasas_adp_reset_xscale,
|
|
.check_reset = megasas_check_reset_ppc,
|
|
.service_isr = megasas_isr,
|
|
.tasklet = megasas_complete_cmd_dpc,
|
|
.init_adapter = megasas_init_adapter_mfi,
|
|
.build_and_issue_cmd = megasas_build_and_issue_cmd,
|
|
.issue_dcmd = megasas_issue_dcmd,
|
|
};
|
|
|
|
/**
|
|
* megasas_enable_intr_skinny - Enables interrupts
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_enable_intr_skinny(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
|
|
regs = instance->reg_set;
|
|
writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
|
|
|
|
writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_disable_intr_skinny - Disables interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_disable_intr_skinny(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
u32 mask = 0xFFFFFFFF;
|
|
|
|
regs = instance->reg_set;
|
|
writel(mask, ®s->outbound_intr_mask);
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_read_fw_status_reg_skinny - returns the current FW status value
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_intr_skinny - Check & clear interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int
|
|
megasas_clear_intr_skinny(struct megasas_instance *instance)
|
|
{
|
|
u32 status;
|
|
u32 mfiStatus = 0;
|
|
struct megasas_register_set __iomem *regs;
|
|
regs = instance->reg_set;
|
|
|
|
/*
|
|
* Check if it is our interrupt
|
|
*/
|
|
status = readl(®s->outbound_intr_status);
|
|
|
|
if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check if it is our interrupt
|
|
*/
|
|
if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) ==
|
|
MFI_STATE_FAULT) {
|
|
mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
|
|
} else
|
|
mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
|
|
|
|
/*
|
|
* Clear the interrupt by writing back the same value
|
|
*/
|
|
writel(status, ®s->outbound_intr_status);
|
|
|
|
/*
|
|
* dummy read to flush PCI
|
|
*/
|
|
readl(®s->outbound_intr_status);
|
|
|
|
return mfiStatus;
|
|
}
|
|
|
|
/**
|
|
* megasas_fire_cmd_skinny - Sends command to the FW
|
|
* @instance: Adapter soft state
|
|
* @frame_phys_addr: Physical address of cmd
|
|
* @frame_count: Number of frames for the command
|
|
* @regs: MFI register set
|
|
*/
|
|
static inline void
|
|
megasas_fire_cmd_skinny(struct megasas_instance *instance,
|
|
dma_addr_t frame_phys_addr,
|
|
u32 frame_count,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
writel(upper_32_bits(frame_phys_addr),
|
|
&(regs)->inbound_high_queue_port);
|
|
writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
|
|
&(regs)->inbound_low_queue_port);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_skinny - For controller reset check
|
|
* @instance: Adapter soft state
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_check_reset_skinny(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct megasas_instance_template megasas_instance_template_skinny = {
|
|
|
|
.fire_cmd = megasas_fire_cmd_skinny,
|
|
.enable_intr = megasas_enable_intr_skinny,
|
|
.disable_intr = megasas_disable_intr_skinny,
|
|
.clear_intr = megasas_clear_intr_skinny,
|
|
.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
|
|
.adp_reset = megasas_adp_reset_gen2,
|
|
.check_reset = megasas_check_reset_skinny,
|
|
.service_isr = megasas_isr,
|
|
.tasklet = megasas_complete_cmd_dpc,
|
|
.init_adapter = megasas_init_adapter_mfi,
|
|
.build_and_issue_cmd = megasas_build_and_issue_cmd,
|
|
.issue_dcmd = megasas_issue_dcmd,
|
|
};
|
|
|
|
|
|
/*
|
|
* The following functions are defined for gen2 (deviceid : 0x78 0x79)
|
|
* controllers
|
|
*/
|
|
|
|
/**
|
|
* megasas_enable_intr_gen2 - Enables interrupts
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_enable_intr_gen2(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
|
|
regs = instance->reg_set;
|
|
writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
|
|
|
|
/* write ~0x00000005 (4 & 1) to the intr mask*/
|
|
writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_disable_intr_gen2 - Disables interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_disable_intr_gen2(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *regs;
|
|
u32 mask = 0xFFFFFFFF;
|
|
|
|
regs = instance->reg_set;
|
|
writel(mask, ®s->outbound_intr_mask);
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_mask);
|
|
}
|
|
|
|
/**
|
|
* megasas_read_fw_status_reg_gen2 - returns the current FW status value
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_intr_gen2 - Check & clear interrupt
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int
|
|
megasas_clear_intr_gen2(struct megasas_instance *instance)
|
|
{
|
|
u32 status;
|
|
u32 mfiStatus = 0;
|
|
struct megasas_register_set __iomem *regs;
|
|
regs = instance->reg_set;
|
|
|
|
/*
|
|
* Check if it is our interrupt
|
|
*/
|
|
status = readl(®s->outbound_intr_status);
|
|
|
|
if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
|
|
mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
|
|
}
|
|
if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
|
|
mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
|
|
}
|
|
|
|
/*
|
|
* Clear the interrupt by writing back the same value
|
|
*/
|
|
if (mfiStatus)
|
|
writel(status, ®s->outbound_doorbell_clear);
|
|
|
|
/* Dummy readl to force pci flush */
|
|
readl(®s->outbound_intr_status);
|
|
|
|
return mfiStatus;
|
|
}
|
|
|
|
/**
|
|
* megasas_fire_cmd_gen2 - Sends command to the FW
|
|
* @instance: Adapter soft state
|
|
* @frame_phys_addr: Physical address of cmd
|
|
* @frame_count: Number of frames for the command
|
|
* @regs: MFI register set
|
|
*/
|
|
static inline void
|
|
megasas_fire_cmd_gen2(struct megasas_instance *instance,
|
|
dma_addr_t frame_phys_addr,
|
|
u32 frame_count,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
writel((frame_phys_addr | (frame_count<<1))|1,
|
|
&(regs)->inbound_queue_port);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* megasas_adp_reset_gen2 - For controller reset
|
|
* @instance: Adapter soft state
|
|
* @reg_set: MFI register set
|
|
*/
|
|
static int
|
|
megasas_adp_reset_gen2(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *reg_set)
|
|
{
|
|
u32 retry = 0 ;
|
|
u32 HostDiag;
|
|
u32 __iomem *seq_offset = ®_set->seq_offset;
|
|
u32 __iomem *hostdiag_offset = ®_set->host_diag;
|
|
|
|
if (instance->instancet == &megasas_instance_template_skinny) {
|
|
seq_offset = ®_set->fusion_seq_offset;
|
|
hostdiag_offset = ®_set->fusion_host_diag;
|
|
}
|
|
|
|
writel(0, seq_offset);
|
|
writel(4, seq_offset);
|
|
writel(0xb, seq_offset);
|
|
writel(2, seq_offset);
|
|
writel(7, seq_offset);
|
|
writel(0xd, seq_offset);
|
|
|
|
msleep(1000);
|
|
|
|
HostDiag = (u32)readl(hostdiag_offset);
|
|
|
|
while (!(HostDiag & DIAG_WRITE_ENABLE)) {
|
|
msleep(100);
|
|
HostDiag = (u32)readl(hostdiag_offset);
|
|
dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
|
|
retry, HostDiag);
|
|
|
|
if (retry++ >= 100)
|
|
return 1;
|
|
|
|
}
|
|
|
|
dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
|
|
|
|
writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
|
|
|
|
ssleep(10);
|
|
|
|
HostDiag = (u32)readl(hostdiag_offset);
|
|
while (HostDiag & DIAG_RESET_ADAPTER) {
|
|
msleep(100);
|
|
HostDiag = (u32)readl(hostdiag_offset);
|
|
dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
|
|
retry, HostDiag);
|
|
|
|
if (retry++ >= 1000)
|
|
return 1;
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_gen2 - For controller reset check
|
|
* @instance: Adapter soft state
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_check_reset_gen2(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct megasas_instance_template megasas_instance_template_gen2 = {
|
|
|
|
.fire_cmd = megasas_fire_cmd_gen2,
|
|
.enable_intr = megasas_enable_intr_gen2,
|
|
.disable_intr = megasas_disable_intr_gen2,
|
|
.clear_intr = megasas_clear_intr_gen2,
|
|
.read_fw_status_reg = megasas_read_fw_status_reg_gen2,
|
|
.adp_reset = megasas_adp_reset_gen2,
|
|
.check_reset = megasas_check_reset_gen2,
|
|
.service_isr = megasas_isr,
|
|
.tasklet = megasas_complete_cmd_dpc,
|
|
.init_adapter = megasas_init_adapter_mfi,
|
|
.build_and_issue_cmd = megasas_build_and_issue_cmd,
|
|
.issue_dcmd = megasas_issue_dcmd,
|
|
};
|
|
|
|
/*
|
|
* This is the end of set of functions & definitions
|
|
* specific to gen2 (deviceid : 0x78, 0x79) controllers
|
|
*/
|
|
|
|
/*
|
|
* Template added for TB (Fusion)
|
|
*/
|
|
extern struct megasas_instance_template megasas_instance_template_fusion;
|
|
|
|
/**
|
|
* megasas_issue_polled - Issues a polling command
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command packet to be issued
|
|
*
|
|
* For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
|
|
*/
|
|
int
|
|
megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
|
|
{
|
|
struct megasas_header *frame_hdr = &cmd->frame->hdr;
|
|
|
|
frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return DCMD_INIT;
|
|
}
|
|
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
|
|
return wait_and_poll(instance, cmd, instance->requestorId ?
|
|
MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command to be issued
|
|
* @timeout: Timeout in seconds
|
|
*
|
|
* This function waits on an event for the command to be returned from ISR.
|
|
* Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
|
|
* Used to issue ioctl commands.
|
|
*/
|
|
int
|
|
megasas_issue_blocked_cmd(struct megasas_instance *instance,
|
|
struct megasas_cmd *cmd, int timeout)
|
|
{
|
|
int ret = 0;
|
|
cmd->cmd_status_drv = DCMD_INIT;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return DCMD_INIT;
|
|
}
|
|
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
|
|
if (timeout) {
|
|
ret = wait_event_timeout(instance->int_cmd_wait_q,
|
|
cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
|
|
if (!ret) {
|
|
dev_err(&instance->pdev->dev,
|
|
"DCMD(opcode: 0x%x) is timed out, func:%s\n",
|
|
cmd->frame->dcmd.opcode, __func__);
|
|
return DCMD_TIMEOUT;
|
|
}
|
|
} else
|
|
wait_event(instance->int_cmd_wait_q,
|
|
cmd->cmd_status_drv != DCMD_INIT);
|
|
|
|
return cmd->cmd_status_drv;
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
|
|
* @instance: Adapter soft state
|
|
* @cmd_to_abort: Previously issued cmd to be aborted
|
|
* @timeout: Timeout in seconds
|
|
*
|
|
* MFI firmware can abort previously issued AEN comamnd (automatic event
|
|
* notification). The megasas_issue_blocked_abort_cmd() issues such abort
|
|
* cmd and waits for return status.
|
|
* Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
|
|
*/
|
|
static int
|
|
megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
|
|
struct megasas_cmd *cmd_to_abort, int timeout)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_abort_frame *abort_fr;
|
|
int ret = 0;
|
|
u32 opcode;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd)
|
|
return -1;
|
|
|
|
abort_fr = &cmd->frame->abort;
|
|
|
|
/*
|
|
* Prepare and issue the abort frame
|
|
*/
|
|
abort_fr->cmd = MFI_CMD_ABORT;
|
|
abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
abort_fr->flags = cpu_to_le16(0);
|
|
abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
|
|
abort_fr->abort_mfi_phys_addr_lo =
|
|
cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
|
|
abort_fr->abort_mfi_phys_addr_hi =
|
|
cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
|
|
|
|
cmd->sync_cmd = 1;
|
|
cmd->cmd_status_drv = DCMD_INIT;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return DCMD_INIT;
|
|
}
|
|
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
|
|
if (timeout) {
|
|
ret = wait_event_timeout(instance->abort_cmd_wait_q,
|
|
cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
|
|
if (!ret) {
|
|
opcode = cmd_to_abort->frame->dcmd.opcode;
|
|
dev_err(&instance->pdev->dev,
|
|
"Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n",
|
|
opcode, __func__);
|
|
return DCMD_TIMEOUT;
|
|
}
|
|
} else
|
|
wait_event(instance->abort_cmd_wait_q,
|
|
cmd->cmd_status_drv != DCMD_INIT);
|
|
|
|
cmd->sync_cmd = 0;
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
return cmd->cmd_status_drv;
|
|
}
|
|
|
|
/**
|
|
* megasas_make_sgl32 - Prepares 32-bit SGL
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command from the mid-layer
|
|
* @mfi_sgl: SGL to be filled in
|
|
*
|
|
* If successful, this function returns the number of SG elements. Otherwise,
|
|
* it returnes -1.
|
|
*/
|
|
static int
|
|
megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
|
|
union megasas_sgl *mfi_sgl)
|
|
{
|
|
int i;
|
|
int sge_count;
|
|
struct scatterlist *os_sgl;
|
|
|
|
sge_count = scsi_dma_map(scp);
|
|
BUG_ON(sge_count < 0);
|
|
|
|
if (sge_count) {
|
|
scsi_for_each_sg(scp, os_sgl, sge_count, i) {
|
|
mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
|
|
mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
|
|
}
|
|
}
|
|
return sge_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_make_sgl64 - Prepares 64-bit SGL
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command from the mid-layer
|
|
* @mfi_sgl: SGL to be filled in
|
|
*
|
|
* If successful, this function returns the number of SG elements. Otherwise,
|
|
* it returnes -1.
|
|
*/
|
|
static int
|
|
megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
|
|
union megasas_sgl *mfi_sgl)
|
|
{
|
|
int i;
|
|
int sge_count;
|
|
struct scatterlist *os_sgl;
|
|
|
|
sge_count = scsi_dma_map(scp);
|
|
BUG_ON(sge_count < 0);
|
|
|
|
if (sge_count) {
|
|
scsi_for_each_sg(scp, os_sgl, sge_count, i) {
|
|
mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
|
|
mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
|
|
}
|
|
}
|
|
return sge_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_make_sgl_skinny - Prepares IEEE SGL
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command from the mid-layer
|
|
* @mfi_sgl: SGL to be filled in
|
|
*
|
|
* If successful, this function returns the number of SG elements. Otherwise,
|
|
* it returnes -1.
|
|
*/
|
|
static int
|
|
megasas_make_sgl_skinny(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
|
|
{
|
|
int i;
|
|
int sge_count;
|
|
struct scatterlist *os_sgl;
|
|
|
|
sge_count = scsi_dma_map(scp);
|
|
|
|
if (sge_count) {
|
|
scsi_for_each_sg(scp, os_sgl, sge_count, i) {
|
|
mfi_sgl->sge_skinny[i].length =
|
|
cpu_to_le32(sg_dma_len(os_sgl));
|
|
mfi_sgl->sge_skinny[i].phys_addr =
|
|
cpu_to_le64(sg_dma_address(os_sgl));
|
|
mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
|
|
}
|
|
}
|
|
return sge_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_get_frame_count - Computes the number of frames
|
|
* @frame_type : type of frame- io or pthru frame
|
|
* @sge_count : number of sg elements
|
|
*
|
|
* Returns the number of frames required for numnber of sge's (sge_count)
|
|
*/
|
|
|
|
static u32 megasas_get_frame_count(struct megasas_instance *instance,
|
|
u8 sge_count, u8 frame_type)
|
|
{
|
|
int num_cnt;
|
|
int sge_bytes;
|
|
u32 sge_sz;
|
|
u32 frame_count = 0;
|
|
|
|
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
|
|
sizeof(struct megasas_sge32);
|
|
|
|
if (instance->flag_ieee) {
|
|
sge_sz = sizeof(struct megasas_sge_skinny);
|
|
}
|
|
|
|
/*
|
|
* Main frame can contain 2 SGEs for 64-bit SGLs and
|
|
* 3 SGEs for 32-bit SGLs for ldio &
|
|
* 1 SGEs for 64-bit SGLs and
|
|
* 2 SGEs for 32-bit SGLs for pthru frame
|
|
*/
|
|
if (unlikely(frame_type == PTHRU_FRAME)) {
|
|
if (instance->flag_ieee == 1) {
|
|
num_cnt = sge_count - 1;
|
|
} else if (IS_DMA64)
|
|
num_cnt = sge_count - 1;
|
|
else
|
|
num_cnt = sge_count - 2;
|
|
} else {
|
|
if (instance->flag_ieee == 1) {
|
|
num_cnt = sge_count - 1;
|
|
} else if (IS_DMA64)
|
|
num_cnt = sge_count - 2;
|
|
else
|
|
num_cnt = sge_count - 3;
|
|
}
|
|
|
|
if (num_cnt > 0) {
|
|
sge_bytes = sge_sz * num_cnt;
|
|
|
|
frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
|
|
((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
|
|
}
|
|
/* Main frame */
|
|
frame_count += 1;
|
|
|
|
if (frame_count > 7)
|
|
frame_count = 8;
|
|
return frame_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_build_dcdb - Prepares a direct cdb (DCDB) command
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared in
|
|
*
|
|
* This function prepares CDB commands. These are typcially pass-through
|
|
* commands to the devices.
|
|
*/
|
|
static int
|
|
megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
|
|
struct megasas_cmd *cmd)
|
|
{
|
|
u32 is_logical;
|
|
u32 device_id;
|
|
u16 flags = 0;
|
|
struct megasas_pthru_frame *pthru;
|
|
|
|
is_logical = MEGASAS_IS_LOGICAL(scp->device);
|
|
device_id = MEGASAS_DEV_INDEX(scp);
|
|
pthru = (struct megasas_pthru_frame *)cmd->frame;
|
|
|
|
if (scp->sc_data_direction == DMA_TO_DEVICE)
|
|
flags = MFI_FRAME_DIR_WRITE;
|
|
else if (scp->sc_data_direction == DMA_FROM_DEVICE)
|
|
flags = MFI_FRAME_DIR_READ;
|
|
else if (scp->sc_data_direction == DMA_NONE)
|
|
flags = MFI_FRAME_DIR_NONE;
|
|
|
|
if (instance->flag_ieee == 1) {
|
|
flags |= MFI_FRAME_IEEE;
|
|
}
|
|
|
|
/*
|
|
* Prepare the DCDB frame
|
|
*/
|
|
pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
|
|
pthru->cmd_status = 0x0;
|
|
pthru->scsi_status = 0x0;
|
|
pthru->target_id = device_id;
|
|
pthru->lun = scp->device->lun;
|
|
pthru->cdb_len = scp->cmd_len;
|
|
pthru->timeout = 0;
|
|
pthru->pad_0 = 0;
|
|
pthru->flags = cpu_to_le16(flags);
|
|
pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
|
|
|
|
memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
|
|
|
|
/*
|
|
* If the command is for the tape device, set the
|
|
* pthru timeout to the os layer timeout value.
|
|
*/
|
|
if (scp->device->type == TYPE_TAPE) {
|
|
if (scsi_cmd_to_rq(scp)->timeout / HZ > 0xFFFF)
|
|
pthru->timeout = cpu_to_le16(0xFFFF);
|
|
else
|
|
pthru->timeout = cpu_to_le16(scsi_cmd_to_rq(scp)->timeout / HZ);
|
|
}
|
|
|
|
/*
|
|
* Construct SGL
|
|
*/
|
|
if (instance->flag_ieee == 1) {
|
|
pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
|
|
pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
|
|
&pthru->sgl);
|
|
} else if (IS_DMA64) {
|
|
pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
|
|
pthru->sge_count = megasas_make_sgl64(instance, scp,
|
|
&pthru->sgl);
|
|
} else
|
|
pthru->sge_count = megasas_make_sgl32(instance, scp,
|
|
&pthru->sgl);
|
|
|
|
if (pthru->sge_count > instance->max_num_sge) {
|
|
dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
|
|
pthru->sge_count);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Sense info specific
|
|
*/
|
|
pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
|
|
pthru->sense_buf_phys_addr_hi =
|
|
cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
|
|
pthru->sense_buf_phys_addr_lo =
|
|
cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
|
|
|
|
/*
|
|
* Compute the total number of frames this command consumes. FW uses
|
|
* this number to pull sufficient number of frames from host memory.
|
|
*/
|
|
cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
|
|
PTHRU_FRAME);
|
|
|
|
return cmd->frame_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_build_ldio - Prepares IOs to logical devices
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared
|
|
*
|
|
* Frames (and accompanying SGLs) for regular SCSI IOs use this function.
|
|
*/
|
|
static int
|
|
megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
|
|
struct megasas_cmd *cmd)
|
|
{
|
|
u32 device_id;
|
|
u8 sc = scp->cmnd[0];
|
|
u16 flags = 0;
|
|
struct megasas_io_frame *ldio;
|
|
|
|
device_id = MEGASAS_DEV_INDEX(scp);
|
|
ldio = (struct megasas_io_frame *)cmd->frame;
|
|
|
|
if (scp->sc_data_direction == DMA_TO_DEVICE)
|
|
flags = MFI_FRAME_DIR_WRITE;
|
|
else if (scp->sc_data_direction == DMA_FROM_DEVICE)
|
|
flags = MFI_FRAME_DIR_READ;
|
|
|
|
if (instance->flag_ieee == 1) {
|
|
flags |= MFI_FRAME_IEEE;
|
|
}
|
|
|
|
/*
|
|
* Prepare the Logical IO frame: 2nd bit is zero for all read cmds
|
|
*/
|
|
ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
|
|
ldio->cmd_status = 0x0;
|
|
ldio->scsi_status = 0x0;
|
|
ldio->target_id = device_id;
|
|
ldio->timeout = 0;
|
|
ldio->reserved_0 = 0;
|
|
ldio->pad_0 = 0;
|
|
ldio->flags = cpu_to_le16(flags);
|
|
ldio->start_lba_hi = 0;
|
|
ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
|
|
|
|
/*
|
|
* 6-byte READ(0x08) or WRITE(0x0A) cdb
|
|
*/
|
|
if (scp->cmd_len == 6) {
|
|
ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
|
|
ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
|
|
((u32) scp->cmnd[2] << 8) |
|
|
(u32) scp->cmnd[3]);
|
|
|
|
ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
|
|
}
|
|
|
|
/*
|
|
* 10-byte READ(0x28) or WRITE(0x2A) cdb
|
|
*/
|
|
else if (scp->cmd_len == 10) {
|
|
ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
|
|
((u32) scp->cmnd[7] << 8));
|
|
ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) |
|
|
(u32) scp->cmnd[5]);
|
|
}
|
|
|
|
/*
|
|
* 12-byte READ(0xA8) or WRITE(0xAA) cdb
|
|
*/
|
|
else if (scp->cmd_len == 12) {
|
|
ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
|
|
((u32) scp->cmnd[7] << 16) |
|
|
((u32) scp->cmnd[8] << 8) |
|
|
(u32) scp->cmnd[9]);
|
|
|
|
ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) |
|
|
(u32) scp->cmnd[5]);
|
|
}
|
|
|
|
/*
|
|
* 16-byte READ(0x88) or WRITE(0x8A) cdb
|
|
*/
|
|
else if (scp->cmd_len == 16) {
|
|
ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
|
|
((u32) scp->cmnd[11] << 16) |
|
|
((u32) scp->cmnd[12] << 8) |
|
|
(u32) scp->cmnd[13]);
|
|
|
|
ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
|
|
((u32) scp->cmnd[7] << 16) |
|
|
((u32) scp->cmnd[8] << 8) |
|
|
(u32) scp->cmnd[9]);
|
|
|
|
ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) |
|
|
(u32) scp->cmnd[5]);
|
|
|
|
}
|
|
|
|
/*
|
|
* Construct SGL
|
|
*/
|
|
if (instance->flag_ieee) {
|
|
ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
|
|
ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
|
|
&ldio->sgl);
|
|
} else if (IS_DMA64) {
|
|
ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
|
|
ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
|
|
} else
|
|
ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
|
|
|
|
if (ldio->sge_count > instance->max_num_sge) {
|
|
dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
|
|
ldio->sge_count);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Sense info specific
|
|
*/
|
|
ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
|
|
ldio->sense_buf_phys_addr_hi = 0;
|
|
ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
|
|
|
|
/*
|
|
* Compute the total number of frames this command consumes. FW uses
|
|
* this number to pull sufficient number of frames from host memory.
|
|
*/
|
|
cmd->frame_count = megasas_get_frame_count(instance,
|
|
ldio->sge_count, IO_FRAME);
|
|
|
|
return cmd->frame_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
|
|
* and whether it's RW or non RW
|
|
* @cmd: SCSI command
|
|
*
|
|
*/
|
|
inline int megasas_cmd_type(struct scsi_cmnd *cmd)
|
|
{
|
|
int ret;
|
|
|
|
switch (cmd->cmnd[0]) {
|
|
case READ_10:
|
|
case WRITE_10:
|
|
case READ_12:
|
|
case WRITE_12:
|
|
case READ_6:
|
|
case WRITE_6:
|
|
case READ_16:
|
|
case WRITE_16:
|
|
ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
|
|
READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
|
|
break;
|
|
default:
|
|
ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
|
|
NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_dump_pending_frames - Dumps the frame address of all pending cmds
|
|
* in FW
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_dump_pending_frames(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
int i,n;
|
|
union megasas_sgl *mfi_sgl;
|
|
struct megasas_io_frame *ldio;
|
|
struct megasas_pthru_frame *pthru;
|
|
u32 sgcount;
|
|
u16 max_cmd = instance->max_fw_cmds;
|
|
|
|
dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
|
|
dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
|
|
if (IS_DMA64)
|
|
dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
|
|
else
|
|
dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
|
|
|
|
dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
|
|
for (i = 0; i < max_cmd; i++) {
|
|
cmd = instance->cmd_list[i];
|
|
if (!cmd->scmd)
|
|
continue;
|
|
dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
|
|
if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
|
|
ldio = (struct megasas_io_frame *)cmd->frame;
|
|
mfi_sgl = &ldio->sgl;
|
|
sgcount = ldio->sge_count;
|
|
dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
|
|
" lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
|
|
instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
|
|
le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
|
|
le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
|
|
} else {
|
|
pthru = (struct megasas_pthru_frame *) cmd->frame;
|
|
mfi_sgl = &pthru->sgl;
|
|
sgcount = pthru->sge_count;
|
|
dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
|
|
"lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
|
|
instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
|
|
pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
|
|
le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
|
|
}
|
|
if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
|
|
for (n = 0; n < sgcount; n++) {
|
|
if (IS_DMA64)
|
|
dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
|
|
le32_to_cpu(mfi_sgl->sge64[n].length),
|
|
le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
|
|
else
|
|
dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
|
|
le32_to_cpu(mfi_sgl->sge32[n].length),
|
|
le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
|
|
}
|
|
}
|
|
} /*for max_cmd*/
|
|
dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
|
|
for (i = 0; i < max_cmd; i++) {
|
|
|
|
cmd = instance->cmd_list[i];
|
|
|
|
if (cmd->sync_cmd == 1)
|
|
dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
|
|
}
|
|
dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
|
|
}
|
|
|
|
u32
|
|
megasas_build_and_issue_cmd(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
u32 frame_count;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
if (!cmd)
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
|
/*
|
|
* Logical drive command
|
|
*/
|
|
if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
|
|
frame_count = megasas_build_ldio(instance, scmd, cmd);
|
|
else
|
|
frame_count = megasas_build_dcdb(instance, scmd, cmd);
|
|
|
|
if (!frame_count)
|
|
goto out_return_cmd;
|
|
|
|
cmd->scmd = scmd;
|
|
megasas_priv(scmd)->cmd_priv = cmd;
|
|
|
|
/*
|
|
* Issue the command to the FW
|
|
*/
|
|
atomic_inc(&instance->fw_outstanding);
|
|
|
|
instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
|
|
cmd->frame_count-1, instance->reg_set);
|
|
|
|
return 0;
|
|
out_return_cmd:
|
|
megasas_return_cmd(instance, cmd);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
|
|
/**
|
|
* megasas_queue_command - Queue entry point
|
|
* @shost: adapter SCSI host
|
|
* @scmd: SCSI command to be queued
|
|
*/
|
|
static int
|
|
megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_instance *instance;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
u32 ld_tgt_id;
|
|
|
|
instance = (struct megasas_instance *)
|
|
scmd->device->host->hostdata;
|
|
|
|
if (instance->unload == 1) {
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
|
|
if (instance->issuepend_done == 0)
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
|
|
|
/* Check for an mpio path and adjust behavior */
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
|
|
if (megasas_check_mpio_paths(instance, scmd) ==
|
|
(DID_REQUEUE << 16)) {
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
} else {
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
mr_device_priv_data = scmd->device->hostdata;
|
|
if (!mr_device_priv_data ||
|
|
(atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) {
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
|
|
if (MEGASAS_IS_LOGICAL(scmd->device)) {
|
|
ld_tgt_id = MEGASAS_TARGET_ID(scmd->device);
|
|
if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) {
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
|
if (mr_device_priv_data->tm_busy)
|
|
return SCSI_MLQUEUE_DEVICE_BUSY;
|
|
|
|
|
|
scmd->result = 0;
|
|
|
|
if (MEGASAS_IS_LOGICAL(scmd->device) &&
|
|
(scmd->device->id >= instance->fw_supported_vd_count ||
|
|
scmd->device->lun)) {
|
|
scmd->result = DID_BAD_TARGET << 16;
|
|
goto out_done;
|
|
}
|
|
|
|
if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
|
|
MEGASAS_IS_LOGICAL(scmd->device) &&
|
|
(!instance->fw_sync_cache_support)) {
|
|
scmd->result = DID_OK << 16;
|
|
goto out_done;
|
|
}
|
|
|
|
return instance->instancet->build_and_issue_cmd(instance, scmd);
|
|
|
|
out_done:
|
|
scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
|
|
static struct megasas_instance *megasas_lookup_instance(u16 host_no)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < megasas_mgmt_info.max_index; i++) {
|
|
|
|
if ((megasas_mgmt_info.instance[i]) &&
|
|
(megasas_mgmt_info.instance[i]->host->host_no == host_no))
|
|
return megasas_mgmt_info.instance[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* megasas_set_dynamic_target_properties -
|
|
* Device property set by driver may not be static and it is required to be
|
|
* updated after OCR
|
|
*
|
|
* set tm_capable.
|
|
* set dma alignment (only for eedp protection enable vd).
|
|
*
|
|
* @sdev: OS provided scsi device
|
|
*
|
|
* Returns void
|
|
*/
|
|
void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
|
|
bool is_target_prop)
|
|
{
|
|
u16 pd_index = 0, ld;
|
|
u32 device_id;
|
|
struct megasas_instance *instance;
|
|
struct fusion_context *fusion;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
|
|
struct MR_LD_RAID *raid;
|
|
struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
fusion = instance->ctrl_context;
|
|
mr_device_priv_data = sdev->hostdata;
|
|
|
|
if (!fusion || !mr_device_priv_data)
|
|
return;
|
|
|
|
if (MEGASAS_IS_LOGICAL(sdev)) {
|
|
device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
|
|
+ sdev->id;
|
|
local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
|
|
ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
|
|
if (ld >= instance->fw_supported_vd_count)
|
|
return;
|
|
raid = MR_LdRaidGet(ld, local_map_ptr);
|
|
|
|
if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
|
|
blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
|
|
|
|
mr_device_priv_data->is_tm_capable =
|
|
raid->capability.tmCapable;
|
|
|
|
if (!raid->flags.isEPD)
|
|
sdev->no_write_same = 1;
|
|
|
|
} else if (instance->use_seqnum_jbod_fp) {
|
|
pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
|
|
sdev->id;
|
|
pd_sync = (void *)fusion->pd_seq_sync
|
|
[(instance->pd_seq_map_id - 1) & 1];
|
|
mr_device_priv_data->is_tm_capable =
|
|
pd_sync->seq[pd_index].capability.tmCapable;
|
|
}
|
|
|
|
if (is_target_prop && instance->tgt_prop->reset_tmo) {
|
|
/*
|
|
* If FW provides a target reset timeout value, driver will use
|
|
* it. If not set, fallback to default values.
|
|
*/
|
|
mr_device_priv_data->target_reset_tmo =
|
|
min_t(u8, instance->max_reset_tmo,
|
|
instance->tgt_prop->reset_tmo);
|
|
mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo;
|
|
} else {
|
|
mr_device_priv_data->target_reset_tmo =
|
|
MEGASAS_DEFAULT_TM_TIMEOUT;
|
|
mr_device_priv_data->task_abort_tmo =
|
|
MEGASAS_DEFAULT_TM_TIMEOUT;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* megasas_set_nvme_device_properties -
|
|
* set nomerges=2
|
|
* set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
|
|
* set maximum io transfer = MDTS of NVME device provided by MR firmware.
|
|
*
|
|
* MR firmware provides value in KB. Caller of this function converts
|
|
* kb into bytes.
|
|
*
|
|
* e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
|
|
* MR firmware provides value 128 as (32 * 4K) = 128K.
|
|
*
|
|
* @sdev: scsi device
|
|
* @max_io_size: maximum io transfer size
|
|
*
|
|
*/
|
|
static inline void
|
|
megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
|
|
{
|
|
struct megasas_instance *instance;
|
|
u32 mr_nvme_pg_size;
|
|
|
|
instance = (struct megasas_instance *)sdev->host->hostdata;
|
|
mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
|
|
MR_DEFAULT_NVME_PAGE_SIZE);
|
|
|
|
blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
|
|
|
|
blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue);
|
|
blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
|
|
}
|
|
|
|
/*
|
|
* megasas_set_fw_assisted_qd -
|
|
* set device queue depth to can_queue
|
|
* set device queue depth to fw assisted qd
|
|
*
|
|
* @sdev: scsi device
|
|
* @is_target_prop true, if fw provided target properties.
|
|
*/
|
|
static void megasas_set_fw_assisted_qd(struct scsi_device *sdev,
|
|
bool is_target_prop)
|
|
{
|
|
u8 interface_type;
|
|
u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
|
|
u32 tgt_device_qd;
|
|
struct megasas_instance *instance;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
mr_device_priv_data = sdev->hostdata;
|
|
interface_type = mr_device_priv_data->interface_type;
|
|
|
|
switch (interface_type) {
|
|
case SAS_PD:
|
|
device_qd = MEGASAS_SAS_QD;
|
|
break;
|
|
case SATA_PD:
|
|
device_qd = MEGASAS_SATA_QD;
|
|
break;
|
|
case NVME_PD:
|
|
device_qd = MEGASAS_NVME_QD;
|
|
break;
|
|
}
|
|
|
|
if (is_target_prop) {
|
|
tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
|
|
if (tgt_device_qd)
|
|
device_qd = min(instance->host->can_queue,
|
|
(int)tgt_device_qd);
|
|
}
|
|
|
|
if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE)
|
|
device_qd = instance->host->can_queue;
|
|
|
|
scsi_change_queue_depth(sdev, device_qd);
|
|
}
|
|
|
|
/*
|
|
* megasas_set_static_target_properties -
|
|
* Device property set by driver are static and it is not required to be
|
|
* updated after OCR.
|
|
*
|
|
* set io timeout
|
|
* set device queue depth
|
|
* set nvme device properties. see - megasas_set_nvme_device_properties
|
|
*
|
|
* @sdev: scsi device
|
|
* @is_target_prop true, if fw provided target properties.
|
|
*/
|
|
static void megasas_set_static_target_properties(struct scsi_device *sdev,
|
|
bool is_target_prop)
|
|
{
|
|
u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
|
|
/*
|
|
* The RAID firmware may require extended timeouts.
|
|
*/
|
|
blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
|
|
|
|
/* max_io_size_kb will be set to non zero for
|
|
* nvme based vd and syspd.
|
|
*/
|
|
if (is_target_prop)
|
|
max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
|
|
|
|
if (instance->nvme_page_size && max_io_size_kb)
|
|
megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
|
|
|
|
megasas_set_fw_assisted_qd(sdev, is_target_prop);
|
|
}
|
|
|
|
|
|
static int megasas_slave_configure(struct scsi_device *sdev)
|
|
{
|
|
u16 pd_index = 0;
|
|
struct megasas_instance *instance;
|
|
int ret_target_prop = DCMD_FAILED;
|
|
bool is_target_prop = false;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
if (instance->pd_list_not_supported) {
|
|
if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
|
|
pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
|
|
sdev->id;
|
|
if (instance->pd_list[pd_index].driveState !=
|
|
MR_PD_STATE_SYSTEM)
|
|
return -ENXIO;
|
|
}
|
|
}
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
/* Send DCMD to Firmware and cache the information */
|
|
if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
|
|
megasas_get_pd_info(instance, sdev);
|
|
|
|
/* Some ventura firmware may not have instance->nvme_page_size set.
|
|
* Do not send MR_DCMD_DRV_GET_TARGET_PROP
|
|
*/
|
|
if ((instance->tgt_prop) && (instance->nvme_page_size))
|
|
ret_target_prop = megasas_get_target_prop(instance, sdev);
|
|
|
|
is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
|
|
megasas_set_static_target_properties(sdev, is_target_prop);
|
|
|
|
/* This sdev property may change post OCR */
|
|
megasas_set_dynamic_target_properties(sdev, is_target_prop);
|
|
|
|
mutex_unlock(&instance->reset_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int megasas_slave_alloc(struct scsi_device *sdev)
|
|
{
|
|
u16 pd_index = 0, ld_tgt_id;
|
|
struct megasas_instance *instance ;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
if (!MEGASAS_IS_LOGICAL(sdev)) {
|
|
/*
|
|
* Open the OS scan to the SYSTEM PD
|
|
*/
|
|
pd_index =
|
|
(sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
|
|
sdev->id;
|
|
if ((instance->pd_list_not_supported ||
|
|
instance->pd_list[pd_index].driveState ==
|
|
MR_PD_STATE_SYSTEM)) {
|
|
goto scan_target;
|
|
}
|
|
return -ENXIO;
|
|
} else if (!MEGASAS_IS_LUN_VALID(sdev)) {
|
|
sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);
|
|
return -ENXIO;
|
|
}
|
|
|
|
scan_target:
|
|
mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
|
|
GFP_KERNEL);
|
|
if (!mr_device_priv_data)
|
|
return -ENOMEM;
|
|
|
|
if (MEGASAS_IS_LOGICAL(sdev)) {
|
|
ld_tgt_id = MEGASAS_TARGET_ID(sdev);
|
|
instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_ACTIVE;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
sdev_printk(KERN_INFO, sdev, "LD target ID %d created.\n", ld_tgt_id);
|
|
}
|
|
|
|
sdev->hostdata = mr_device_priv_data;
|
|
|
|
atomic_set(&mr_device_priv_data->r1_ldio_hint,
|
|
instance->r1_ldio_hint_default);
|
|
return 0;
|
|
}
|
|
|
|
static void megasas_slave_destroy(struct scsi_device *sdev)
|
|
{
|
|
u16 ld_tgt_id;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = megasas_lookup_instance(sdev->host->host_no);
|
|
|
|
if (MEGASAS_IS_LOGICAL(sdev)) {
|
|
if (!MEGASAS_IS_LUN_VALID(sdev)) {
|
|
sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);
|
|
return;
|
|
}
|
|
ld_tgt_id = MEGASAS_TARGET_ID(sdev);
|
|
instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_DELETED;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
sdev_printk(KERN_INFO, sdev,
|
|
"LD target ID %d removed from OS stack\n", ld_tgt_id);
|
|
}
|
|
|
|
kfree(sdev->hostdata);
|
|
sdev->hostdata = NULL;
|
|
}
|
|
|
|
/*
|
|
* megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
|
|
* kill adapter
|
|
* @instance: Adapter soft state
|
|
*
|
|
*/
|
|
static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
struct megasas_cmd *cmd_mfi;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
|
|
/* Find all outstanding ioctls */
|
|
if (fusion) {
|
|
for (i = 0; i < instance->max_fw_cmds; i++) {
|
|
cmd_fusion = fusion->cmd_list[i];
|
|
if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
|
|
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
|
|
if (cmd_mfi->sync_cmd &&
|
|
(cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
|
|
cmd_mfi->frame->hdr.cmd_status =
|
|
MFI_STAT_WRONG_STATE;
|
|
megasas_complete_cmd(instance,
|
|
cmd_mfi, DID_OK);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < instance->max_fw_cmds; i++) {
|
|
cmd_mfi = instance->cmd_list[i];
|
|
if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
|
|
MFI_CMD_ABORT)
|
|
megasas_complete_cmd(instance, cmd_mfi, DID_OK);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void megaraid_sas_kill_hba(struct megasas_instance *instance)
|
|
{
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"Adapter already dead, skipping kill HBA\n");
|
|
return;
|
|
}
|
|
|
|
/* Set critical error to block I/O & ioctls in case caller didn't */
|
|
atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
|
|
/* Wait 1 second to ensure IO or ioctls in build have posted */
|
|
msleep(1000);
|
|
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
|
|
(instance->adapter_type != MFI_SERIES)) {
|
|
if (!instance->requestorId) {
|
|
writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
|
|
/* Flush */
|
|
readl(&instance->reg_set->doorbell);
|
|
}
|
|
if (instance->requestorId && instance->peerIsPresent)
|
|
memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
|
|
} else {
|
|
writel(MFI_STOP_ADP,
|
|
&instance->reg_set->inbound_doorbell);
|
|
}
|
|
/* Complete outstanding ioctls when adapter is killed */
|
|
megasas_complete_outstanding_ioctls(instance);
|
|
}
|
|
|
|
/**
|
|
* megasas_check_and_restore_queue_depth - Check if queue depth needs to be
|
|
* restored to max value
|
|
* @instance: Adapter soft state
|
|
*
|
|
*/
|
|
void
|
|
megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (instance->flag & MEGASAS_FW_BUSY
|
|
&& time_after(jiffies, instance->last_time + 5 * HZ)
|
|
&& atomic_read(&instance->fw_outstanding) <
|
|
instance->throttlequeuedepth + 1) {
|
|
|
|
spin_lock_irqsave(instance->host->host_lock, flags);
|
|
instance->flag &= ~MEGASAS_FW_BUSY;
|
|
|
|
instance->host->can_queue = instance->cur_can_queue;
|
|
spin_unlock_irqrestore(instance->host->host_lock, flags);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_complete_cmd_dpc - Returns FW's controller structure
|
|
* @instance_addr: Address of adapter soft state
|
|
*
|
|
* Tasklet to complete cmds
|
|
*/
|
|
static void megasas_complete_cmd_dpc(unsigned long instance_addr)
|
|
{
|
|
u32 producer;
|
|
u32 consumer;
|
|
u32 context;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)instance_addr;
|
|
unsigned long flags;
|
|
|
|
/* If we have already declared adapter dead, donot complete cmds */
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
|
|
return;
|
|
|
|
spin_lock_irqsave(&instance->completion_lock, flags);
|
|
|
|
producer = le32_to_cpu(*instance->producer);
|
|
consumer = le32_to_cpu(*instance->consumer);
|
|
|
|
while (consumer != producer) {
|
|
context = le32_to_cpu(instance->reply_queue[consumer]);
|
|
if (context >= instance->max_fw_cmds) {
|
|
dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
|
|
context);
|
|
BUG();
|
|
}
|
|
|
|
cmd = instance->cmd_list[context];
|
|
|
|
megasas_complete_cmd(instance, cmd, DID_OK);
|
|
|
|
consumer++;
|
|
if (consumer == (instance->max_fw_cmds + 1)) {
|
|
consumer = 0;
|
|
}
|
|
}
|
|
|
|
*instance->consumer = cpu_to_le32(producer);
|
|
|
|
spin_unlock_irqrestore(&instance->completion_lock, flags);
|
|
|
|
/*
|
|
* Check if we can restore can_queue
|
|
*/
|
|
megasas_check_and_restore_queue_depth(instance);
|
|
}
|
|
|
|
static void megasas_sriov_heartbeat_handler(struct timer_list *t);
|
|
|
|
/**
|
|
* megasas_start_timer - Initializes sriov heartbeat timer object
|
|
* @instance: Adapter soft state
|
|
*
|
|
*/
|
|
void megasas_start_timer(struct megasas_instance *instance)
|
|
{
|
|
struct timer_list *timer = &instance->sriov_heartbeat_timer;
|
|
|
|
timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
|
|
timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
|
|
add_timer(timer);
|
|
}
|
|
|
|
static void
|
|
megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
|
|
|
|
static void
|
|
process_fw_state_change_wq(struct work_struct *work);
|
|
|
|
static void megasas_do_ocr(struct megasas_instance *instance)
|
|
{
|
|
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
|
|
*instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
|
|
}
|
|
instance->instancet->disable_intr(instance);
|
|
atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
|
|
instance->issuepend_done = 0;
|
|
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
megasas_internal_reset_defer_cmds(instance);
|
|
process_fw_state_change_wq(&instance->work_init);
|
|
}
|
|
|
|
static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
|
|
int initial)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
|
|
dma_addr_t new_affiliation_111_h;
|
|
int ld, retval = 0;
|
|
u8 thisVf;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
|
|
"Failed to get cmd for scsi%d\n",
|
|
instance->host->host_no);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
if (!instance->vf_affiliation_111) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
|
|
"affiliation for scsi%d\n", instance->host->host_no);
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (initial)
|
|
memset(instance->vf_affiliation_111, 0,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111));
|
|
else {
|
|
new_affiliation_111 =
|
|
dma_alloc_coherent(&instance->pdev->dev,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111),
|
|
&new_affiliation_111_h, GFP_KERNEL);
|
|
if (!new_affiliation_111) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
|
|
"memory for new affiliation for scsi%d\n",
|
|
instance->host->host_no);
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len =
|
|
cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
|
|
|
|
if (initial)
|
|
dcmd->sgl.sge32[0].phys_addr =
|
|
cpu_to_le32(instance->vf_affiliation_111_h);
|
|
else
|
|
dcmd->sgl.sge32[0].phys_addr =
|
|
cpu_to_le32(new_affiliation_111_h);
|
|
|
|
dcmd->sgl.sge32[0].length = cpu_to_le32(
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111));
|
|
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
|
|
"scsi%d\n", instance->host->host_no);
|
|
|
|
if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
|
|
" failed with status 0x%x for scsi%d\n",
|
|
dcmd->cmd_status, instance->host->host_no);
|
|
retval = 1; /* Do a scan if we couldn't get affiliation */
|
|
goto out;
|
|
}
|
|
|
|
if (!initial) {
|
|
thisVf = new_affiliation_111->thisVf;
|
|
for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
|
|
if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
|
|
new_affiliation_111->map[ld].policy[thisVf]) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: "
|
|
"Got new LD/VF affiliation for scsi%d\n",
|
|
instance->host->host_no);
|
|
memcpy(instance->vf_affiliation_111,
|
|
new_affiliation_111,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111));
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
out:
|
|
if (new_affiliation_111) {
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111),
|
|
new_affiliation_111,
|
|
new_affiliation_111_h);
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
|
|
int initial)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
|
|
struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
|
|
dma_addr_t new_affiliation_h;
|
|
int i, j, retval = 0, found = 0, doscan = 0;
|
|
u8 thisVf;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
|
|
"Failed to get cmd for scsi%d\n",
|
|
instance->host->host_no);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
if (!instance->vf_affiliation) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
|
|
"affiliation for scsi%d\n", instance->host->host_no);
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (initial)
|
|
memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION));
|
|
else {
|
|
new_affiliation =
|
|
dma_alloc_coherent(&instance->pdev->dev,
|
|
(MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION),
|
|
&new_affiliation_h, GFP_KERNEL);
|
|
if (!new_affiliation) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
|
|
"memory for new affiliation for scsi%d\n",
|
|
instance->host->host_no);
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
|
|
|
|
if (initial)
|
|
dcmd->sgl.sge32[0].phys_addr =
|
|
cpu_to_le32(instance->vf_affiliation_h);
|
|
else
|
|
dcmd->sgl.sge32[0].phys_addr =
|
|
cpu_to_le32(new_affiliation_h);
|
|
|
|
dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION));
|
|
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
|
|
"scsi%d\n", instance->host->host_no);
|
|
|
|
|
|
if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
|
|
" failed with status 0x%x for scsi%d\n",
|
|
dcmd->cmd_status, instance->host->host_no);
|
|
retval = 1; /* Do a scan if we couldn't get affiliation */
|
|
goto out;
|
|
}
|
|
|
|
if (!initial) {
|
|
if (!new_affiliation->ldCount) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
|
|
"affiliation for passive path for scsi%d\n",
|
|
instance->host->host_no);
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
newmap = new_affiliation->map;
|
|
savedmap = instance->vf_affiliation->map;
|
|
thisVf = new_affiliation->thisVf;
|
|
for (i = 0 ; i < new_affiliation->ldCount; i++) {
|
|
found = 0;
|
|
for (j = 0; j < instance->vf_affiliation->ldCount;
|
|
j++) {
|
|
if (newmap->ref.targetId ==
|
|
savedmap->ref.targetId) {
|
|
found = 1;
|
|
if (newmap->policy[thisVf] !=
|
|
savedmap->policy[thisVf]) {
|
|
doscan = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
savedmap = (struct MR_LD_VF_MAP *)
|
|
((unsigned char *)savedmap +
|
|
savedmap->size);
|
|
}
|
|
if (!found && newmap->policy[thisVf] !=
|
|
MR_LD_ACCESS_HIDDEN) {
|
|
doscan = 1;
|
|
goto out;
|
|
}
|
|
newmap = (struct MR_LD_VF_MAP *)
|
|
((unsigned char *)newmap + newmap->size);
|
|
}
|
|
|
|
newmap = new_affiliation->map;
|
|
savedmap = instance->vf_affiliation->map;
|
|
|
|
for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
|
|
found = 0;
|
|
for (j = 0 ; j < new_affiliation->ldCount; j++) {
|
|
if (savedmap->ref.targetId ==
|
|
newmap->ref.targetId) {
|
|
found = 1;
|
|
if (savedmap->policy[thisVf] !=
|
|
newmap->policy[thisVf]) {
|
|
doscan = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
newmap = (struct MR_LD_VF_MAP *)
|
|
((unsigned char *)newmap +
|
|
newmap->size);
|
|
}
|
|
if (!found && savedmap->policy[thisVf] !=
|
|
MR_LD_ACCESS_HIDDEN) {
|
|
doscan = 1;
|
|
goto out;
|
|
}
|
|
savedmap = (struct MR_LD_VF_MAP *)
|
|
((unsigned char *)savedmap +
|
|
savedmap->size);
|
|
}
|
|
}
|
|
out:
|
|
if (doscan) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
|
|
"affiliation for scsi%d\n", instance->host->host_no);
|
|
memcpy(instance->vf_affiliation, new_affiliation,
|
|
new_affiliation->size);
|
|
retval = 1;
|
|
}
|
|
|
|
if (new_affiliation)
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
(MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION),
|
|
new_affiliation, new_affiliation_h);
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/* This function will get the current SR-IOV LD/VF affiliation */
|
|
static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
|
|
int initial)
|
|
{
|
|
int retval;
|
|
|
|
if (instance->PlasmaFW111)
|
|
retval = megasas_get_ld_vf_affiliation_111(instance, initial);
|
|
else
|
|
retval = megasas_get_ld_vf_affiliation_12(instance, initial);
|
|
return retval;
|
|
}
|
|
|
|
/* This function will tell FW to start the SR-IOV heartbeat */
|
|
int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
|
|
int initial)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
int retval = 0;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
|
|
"Failed to get cmd for scsi%d\n",
|
|
instance->host->host_no);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
if (initial) {
|
|
instance->hb_host_mem =
|
|
dma_alloc_coherent(&instance->pdev->dev,
|
|
sizeof(struct MR_CTRL_HB_HOST_MEM),
|
|
&instance->hb_host_mem_h,
|
|
GFP_KERNEL);
|
|
if (!instance->hb_host_mem) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
|
|
" memory for heartbeat host memory for scsi%d\n",
|
|
instance->host->host_no);
|
|
retval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
|
|
sizeof(struct MR_CTRL_HB_HOST_MEM));
|
|
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
|
|
instance->host->host_no);
|
|
|
|
if ((instance->adapter_type != MFI_SERIES) &&
|
|
!instance->mask_interrupts)
|
|
retval = megasas_issue_blocked_cmd(instance, cmd,
|
|
MEGASAS_ROUTINE_WAIT_TIME_VF);
|
|
else
|
|
retval = megasas_issue_polled(instance, cmd);
|
|
|
|
if (retval) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
|
|
"_MEM_ALLOC DCMD %s for scsi%d\n",
|
|
(dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
|
|
"timed out" : "failed", instance->host->host_no);
|
|
retval = 1;
|
|
}
|
|
|
|
out:
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/* Handler for SR-IOV heartbeat */
|
|
static void megasas_sriov_heartbeat_handler(struct timer_list *t)
|
|
{
|
|
struct megasas_instance *instance =
|
|
from_timer(instance, t, sriov_heartbeat_timer);
|
|
|
|
if (instance->hb_host_mem->HB.fwCounter !=
|
|
instance->hb_host_mem->HB.driverCounter) {
|
|
instance->hb_host_mem->HB.driverCounter =
|
|
instance->hb_host_mem->HB.fwCounter;
|
|
mod_timer(&instance->sriov_heartbeat_timer,
|
|
jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
|
|
} else {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
|
|
"completed for scsi%d\n", instance->host->host_no);
|
|
schedule_work(&instance->work_init);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_wait_for_outstanding - Wait for all outstanding cmds
|
|
* @instance: Adapter soft state
|
|
*
|
|
* This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
|
|
* complete all its outstanding commands. Returns error if one or more IOs
|
|
* are pending after this time period. It also marks the controller dead.
|
|
*/
|
|
static int megasas_wait_for_outstanding(struct megasas_instance *instance)
|
|
{
|
|
int i, sl, outstanding;
|
|
u32 reset_index;
|
|
u32 wait_time = MEGASAS_RESET_WAIT_TIME;
|
|
unsigned long flags;
|
|
struct list_head clist_local;
|
|
struct megasas_cmd *reset_cmd;
|
|
u32 fw_state;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
|
|
__func__, __LINE__);
|
|
return FAILED;
|
|
}
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
|
|
|
|
INIT_LIST_HEAD(&clist_local);
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
list_splice_init(&instance->internal_reset_pending_q,
|
|
&clist_local);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
|
|
dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
|
|
for (i = 0; i < wait_time; i++) {
|
|
msleep(1000);
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
|
|
break;
|
|
}
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
|
|
dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
|
|
atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
|
|
return FAILED;
|
|
}
|
|
|
|
reset_index = 0;
|
|
while (!list_empty(&clist_local)) {
|
|
reset_cmd = list_entry((&clist_local)->next,
|
|
struct megasas_cmd, list);
|
|
list_del_init(&reset_cmd->list);
|
|
if (reset_cmd->scmd) {
|
|
reset_cmd->scmd->result = DID_REQUEUE << 16;
|
|
dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
|
|
reset_index, reset_cmd,
|
|
reset_cmd->scmd->cmnd[0]);
|
|
|
|
scsi_done(reset_cmd->scmd);
|
|
megasas_return_cmd(instance, reset_cmd);
|
|
} else if (reset_cmd->sync_cmd) {
|
|
dev_notice(&instance->pdev->dev, "%p synch cmds"
|
|
"reset queue\n",
|
|
reset_cmd);
|
|
|
|
reset_cmd->cmd_status_drv = DCMD_INIT;
|
|
instance->instancet->fire_cmd(instance,
|
|
reset_cmd->frame_phys_addr,
|
|
0, instance->reg_set);
|
|
} else {
|
|
dev_notice(&instance->pdev->dev, "%p unexpected"
|
|
"cmds lst\n",
|
|
reset_cmd);
|
|
}
|
|
reset_index++;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
for (i = 0; i < resetwaittime; i++) {
|
|
outstanding = atomic_read(&instance->fw_outstanding);
|
|
|
|
if (!outstanding)
|
|
break;
|
|
|
|
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
|
|
dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
|
|
"commands to complete\n",i,outstanding);
|
|
/*
|
|
* Call cmd completion routine. Cmd to be
|
|
* be completed directly without depending on isr.
|
|
*/
|
|
megasas_complete_cmd_dpc((unsigned long)instance);
|
|
}
|
|
|
|
msleep(1000);
|
|
}
|
|
|
|
i = 0;
|
|
outstanding = atomic_read(&instance->fw_outstanding);
|
|
fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
|
|
|
|
if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
|
|
goto no_outstanding;
|
|
|
|
if (instance->disableOnlineCtrlReset)
|
|
goto kill_hba_and_failed;
|
|
do {
|
|
if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n",
|
|
__func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
|
|
if (i == 3)
|
|
goto kill_hba_and_failed;
|
|
megasas_do_ocr(instance);
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
|
|
__func__, __LINE__);
|
|
return FAILED;
|
|
}
|
|
dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
|
|
__func__, __LINE__);
|
|
|
|
for (sl = 0; sl < 10; sl++)
|
|
msleep(500);
|
|
|
|
outstanding = atomic_read(&instance->fw_outstanding);
|
|
|
|
fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
|
|
if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
|
|
goto no_outstanding;
|
|
}
|
|
i++;
|
|
} while (i <= 3);
|
|
|
|
no_outstanding:
|
|
|
|
dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
|
|
__func__, __LINE__);
|
|
return SUCCESS;
|
|
|
|
kill_hba_and_failed:
|
|
|
|
/* Reset not supported, kill adapter */
|
|
dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
|
|
" disableOnlineCtrlReset %d fw_outstanding %d \n",
|
|
__func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
|
|
atomic_read(&instance->fw_outstanding));
|
|
megasas_dump_pending_frames(instance);
|
|
megaraid_sas_kill_hba(instance);
|
|
|
|
return FAILED;
|
|
}
|
|
|
|
/**
|
|
* megasas_generic_reset - Generic reset routine
|
|
* @scmd: Mid-layer SCSI command
|
|
*
|
|
* This routine implements a generic reset handler for device, bus and host
|
|
* reset requests. Device, bus and host specific reset handlers can use this
|
|
* function after they do their specific tasks.
|
|
*/
|
|
static int megasas_generic_reset(struct scsi_cmnd *scmd)
|
|
{
|
|
int ret_val;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
|
|
scmd->cmnd[0], scmd->retries);
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
|
|
return FAILED;
|
|
}
|
|
|
|
ret_val = megasas_wait_for_outstanding(instance);
|
|
if (ret_val == SUCCESS)
|
|
dev_notice(&instance->pdev->dev, "reset successful\n");
|
|
else
|
|
dev_err(&instance->pdev->dev, "failed to do reset\n");
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* megasas_reset_timer - quiesce the adapter if required
|
|
* @scmd: scsi cmnd
|
|
*
|
|
* Sets the FW busy flag and reduces the host->can_queue if the
|
|
* cmd has not been completed within the timeout period.
|
|
*/
|
|
static enum scsi_timeout_action megasas_reset_timer(struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_instance *instance;
|
|
unsigned long flags;
|
|
|
|
if (time_after(jiffies, scmd->jiffies_at_alloc +
|
|
(scmd_timeout * 2) * HZ)) {
|
|
return SCSI_EH_NOT_HANDLED;
|
|
}
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
if (!(instance->flag & MEGASAS_FW_BUSY)) {
|
|
/* FW is busy, throttle IO */
|
|
spin_lock_irqsave(instance->host->host_lock, flags);
|
|
|
|
instance->host->can_queue = instance->throttlequeuedepth;
|
|
instance->last_time = jiffies;
|
|
instance->flag |= MEGASAS_FW_BUSY;
|
|
|
|
spin_unlock_irqrestore(instance->host->host_lock, flags);
|
|
}
|
|
return SCSI_EH_RESET_TIMER;
|
|
}
|
|
|
|
/**
|
|
* megasas_dump - This function will print hexdump of provided buffer.
|
|
* @buf: Buffer to be dumped
|
|
* @sz: Size in bytes
|
|
* @format: Different formats of dumping e.g. format=n will
|
|
* cause only 'n' 32 bit words to be dumped in a single
|
|
* line.
|
|
*/
|
|
inline void
|
|
megasas_dump(void *buf, int sz, int format)
|
|
{
|
|
int i;
|
|
__le32 *buf_loc = (__le32 *)buf;
|
|
|
|
for (i = 0; i < (sz / sizeof(__le32)); i++) {
|
|
if ((i % format) == 0) {
|
|
if (i != 0)
|
|
printk(KERN_CONT "\n");
|
|
printk(KERN_CONT "%08x: ", (i * 4));
|
|
}
|
|
printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i]));
|
|
}
|
|
printk(KERN_CONT "\n");
|
|
}
|
|
|
|
/**
|
|
* megasas_dump_reg_set - This function will print hexdump of register set
|
|
* @reg_set: Register set to be dumped
|
|
*/
|
|
inline void
|
|
megasas_dump_reg_set(void __iomem *reg_set)
|
|
{
|
|
unsigned int i, sz = 256;
|
|
u32 __iomem *reg = (u32 __iomem *)reg_set;
|
|
|
|
for (i = 0; i < (sz / sizeof(u32)); i++)
|
|
printk("%08x: %08x\n", (i * 4), readl(®[i]));
|
|
}
|
|
|
|
/**
|
|
* megasas_dump_fusion_io - This function will print key details
|
|
* of SCSI IO
|
|
* @scmd: SCSI command pointer of SCSI IO
|
|
*/
|
|
void
|
|
megasas_dump_fusion_io(struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
scmd_printk(KERN_INFO, scmd,
|
|
"scmd: (0x%p) retries: 0x%x allowed: 0x%x\n",
|
|
scmd, scmd->retries, scmd->allowed);
|
|
scsi_print_command(scmd);
|
|
|
|
if (cmd) {
|
|
req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
|
|
scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n");
|
|
scmd_printk(KERN_INFO, scmd,
|
|
"RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n",
|
|
req_desc->SCSIIO.RequestFlags,
|
|
req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID,
|
|
req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle);
|
|
|
|
printk(KERN_INFO "IO request frame:\n");
|
|
megasas_dump(cmd->io_request,
|
|
MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8);
|
|
printk(KERN_INFO "Chain frame:\n");
|
|
megasas_dump(cmd->sg_frame,
|
|
instance->max_chain_frame_sz, 8);
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* megasas_dump_sys_regs - This function will dump system registers through
|
|
* sysfs.
|
|
* @reg_set: Pointer to System register set.
|
|
* @buf: Buffer to which output is to be written.
|
|
* @return: Number of bytes written to buffer.
|
|
*/
|
|
static inline ssize_t
|
|
megasas_dump_sys_regs(void __iomem *reg_set, char *buf)
|
|
{
|
|
unsigned int i, sz = 256;
|
|
int bytes_wrote = 0;
|
|
char *loc = (char *)buf;
|
|
u32 __iomem *reg = (u32 __iomem *)reg_set;
|
|
|
|
for (i = 0; i < sz / sizeof(u32); i++) {
|
|
bytes_wrote += scnprintf(loc + bytes_wrote,
|
|
PAGE_SIZE - bytes_wrote,
|
|
"%08x: %08x\n", (i * 4),
|
|
readl(®[i]));
|
|
}
|
|
return bytes_wrote;
|
|
}
|
|
|
|
/**
|
|
* megasas_reset_bus_host - Bus & host reset handler entry point
|
|
* @scmd: Mid-layer SCSI command
|
|
*/
|
|
static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
|
|
{
|
|
int ret;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
scmd_printk(KERN_INFO, scmd,
|
|
"OCR is requested due to IO timeout!!\n");
|
|
|
|
scmd_printk(KERN_INFO, scmd,
|
|
"SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n",
|
|
scmd->device->host->shost_state,
|
|
scsi_host_busy(scmd->device->host),
|
|
atomic_read(&instance->fw_outstanding));
|
|
/*
|
|
* First wait for all commands to complete
|
|
*/
|
|
if (instance->adapter_type == MFI_SERIES) {
|
|
ret = megasas_generic_reset(scmd);
|
|
} else {
|
|
megasas_dump_fusion_io(scmd);
|
|
ret = megasas_reset_fusion(scmd->device->host,
|
|
SCSIIO_TIMEOUT_OCR);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_task_abort - Issues task abort request to firmware
|
|
* (supported only for fusion adapters)
|
|
* @scmd: SCSI command pointer
|
|
*/
|
|
static int megasas_task_abort(struct scsi_cmnd *scmd)
|
|
{
|
|
int ret;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
ret = megasas_task_abort_fusion(scmd);
|
|
else {
|
|
sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
|
|
ret = FAILED;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_reset_target: Issues target reset request to firmware
|
|
* (supported only for fusion adapters)
|
|
* @scmd: SCSI command pointer
|
|
*/
|
|
static int megasas_reset_target(struct scsi_cmnd *scmd)
|
|
{
|
|
int ret;
|
|
struct megasas_instance *instance;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
ret = megasas_reset_target_fusion(scmd);
|
|
else {
|
|
sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
|
|
ret = FAILED;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_bios_param - Returns disk geometry for a disk
|
|
* @sdev: device handle
|
|
* @bdev: block device
|
|
* @capacity: drive capacity
|
|
* @geom: geometry parameters
|
|
*/
|
|
static int
|
|
megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
|
|
sector_t capacity, int geom[])
|
|
{
|
|
int heads;
|
|
int sectors;
|
|
sector_t cylinders;
|
|
unsigned long tmp;
|
|
|
|
/* Default heads (64) & sectors (32) */
|
|
heads = 64;
|
|
sectors = 32;
|
|
|
|
tmp = heads * sectors;
|
|
cylinders = capacity;
|
|
|
|
sector_div(cylinders, tmp);
|
|
|
|
/*
|
|
* Handle extended translation size for logical drives > 1Gb
|
|
*/
|
|
|
|
if (capacity >= 0x200000) {
|
|
heads = 255;
|
|
sectors = 63;
|
|
tmp = heads*sectors;
|
|
cylinders = capacity;
|
|
sector_div(cylinders, tmp);
|
|
}
|
|
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = cylinders;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void megasas_map_queues(struct Scsi_Host *shost)
|
|
{
|
|
struct megasas_instance *instance;
|
|
int qoff = 0, offset;
|
|
struct blk_mq_queue_map *map;
|
|
|
|
instance = (struct megasas_instance *)shost->hostdata;
|
|
|
|
if (shost->nr_hw_queues == 1)
|
|
return;
|
|
|
|
offset = instance->low_latency_index_start;
|
|
|
|
/* Setup Default hctx */
|
|
map = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
|
|
map->nr_queues = instance->msix_vectors - offset;
|
|
map->queue_offset = 0;
|
|
blk_mq_pci_map_queues(map, instance->pdev, offset);
|
|
qoff += map->nr_queues;
|
|
offset += map->nr_queues;
|
|
|
|
/* we never use READ queue, so can't cheat blk-mq */
|
|
shost->tag_set.map[HCTX_TYPE_READ].nr_queues = 0;
|
|
|
|
/* Setup Poll hctx */
|
|
map = &shost->tag_set.map[HCTX_TYPE_POLL];
|
|
map->nr_queues = instance->iopoll_q_count;
|
|
if (map->nr_queues) {
|
|
/*
|
|
* The poll queue(s) doesn't have an IRQ (and hence IRQ
|
|
* affinity), so use the regular blk-mq cpu mapping
|
|
*/
|
|
map->queue_offset = qoff;
|
|
blk_mq_map_queues(map);
|
|
}
|
|
}
|
|
|
|
static void megasas_aen_polling(struct work_struct *work);
|
|
|
|
/**
|
|
* megasas_service_aen - Processes an event notification
|
|
* @instance: Adapter soft state
|
|
* @cmd: AEN command completed by the ISR
|
|
*
|
|
* For AEN, driver sends a command down to FW that is held by the FW till an
|
|
* event occurs. When an event of interest occurs, FW completes the command
|
|
* that it was previously holding.
|
|
*
|
|
* This routines sends SIGIO signal to processes that have registered with the
|
|
* driver for AEN.
|
|
*/
|
|
static void
|
|
megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* Don't signal app if it is just an aborted previously registered aen
|
|
*/
|
|
if ((!cmd->abort_aen) && (instance->unload == 0)) {
|
|
spin_lock_irqsave(&poll_aen_lock, flags);
|
|
megasas_poll_wait_aen = 1;
|
|
spin_unlock_irqrestore(&poll_aen_lock, flags);
|
|
wake_up(&megasas_poll_wait);
|
|
kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
|
|
}
|
|
else
|
|
cmd->abort_aen = 0;
|
|
|
|
instance->aen_cmd = NULL;
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
if ((instance->unload == 0) &&
|
|
((instance->issuepend_done == 1))) {
|
|
struct megasas_aen_event *ev;
|
|
|
|
ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
|
|
if (!ev) {
|
|
dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
|
|
} else {
|
|
ev->instance = instance;
|
|
instance->ev = ev;
|
|
INIT_DELAYED_WORK(&ev->hotplug_work,
|
|
megasas_aen_polling);
|
|
schedule_delayed_work(&ev->hotplug_work, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static ssize_t
|
|
fw_crash_buffer_store(struct device *cdev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *) shost->hostdata;
|
|
int val = 0;
|
|
unsigned long flags;
|
|
|
|
if (kstrtoint(buf, 0, &val) != 0)
|
|
return -EINVAL;
|
|
|
|
spin_lock_irqsave(&instance->crashdump_lock, flags);
|
|
instance->fw_crash_buffer_offset = val;
|
|
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t
|
|
fw_crash_buffer_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *) shost->hostdata;
|
|
u32 size;
|
|
unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
|
|
unsigned long chunk_left_bytes;
|
|
unsigned long src_addr;
|
|
unsigned long flags;
|
|
u32 buff_offset;
|
|
|
|
spin_lock_irqsave(&instance->crashdump_lock, flags);
|
|
buff_offset = instance->fw_crash_buffer_offset;
|
|
if (!instance->crash_dump_buf ||
|
|
!((instance->fw_crash_state == AVAILABLE) ||
|
|
(instance->fw_crash_state == COPYING))) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Firmware crash dump is not available\n");
|
|
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Firmware crash dump offset is out of range\n");
|
|
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
|
|
chunk_left_bytes = dmachunk - (buff_offset % dmachunk);
|
|
size = (size > chunk_left_bytes) ? chunk_left_bytes : size;
|
|
size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
|
|
|
|
src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
|
|
(buff_offset % dmachunk);
|
|
memcpy(buf, (void *)src_addr, size);
|
|
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
|
|
|
|
return size;
|
|
}
|
|
|
|
static ssize_t
|
|
fw_crash_buffer_size_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *) shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
|
|
((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
|
|
}
|
|
|
|
static ssize_t
|
|
fw_crash_state_store(struct device *cdev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *) shost->hostdata;
|
|
int val = 0;
|
|
unsigned long flags;
|
|
|
|
if (kstrtoint(buf, 0, &val) != 0)
|
|
return -EINVAL;
|
|
|
|
if ((val <= AVAILABLE || val > COPY_ERROR)) {
|
|
dev_err(&instance->pdev->dev, "application updates invalid "
|
|
"firmware crash state\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
instance->fw_crash_state = val;
|
|
|
|
if ((val == COPIED) || (val == COPY_ERROR)) {
|
|
spin_lock_irqsave(&instance->crashdump_lock, flags);
|
|
megasas_free_host_crash_buffer(instance);
|
|
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
|
|
if (val == COPY_ERROR)
|
|
dev_info(&instance->pdev->dev, "application failed to "
|
|
"copy Firmware crash dump\n");
|
|
else
|
|
dev_info(&instance->pdev->dev, "Firmware crash dump "
|
|
"copied successfully\n");
|
|
}
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t
|
|
fw_crash_state_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *) shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
|
|
}
|
|
|
|
static ssize_t
|
|
page_size_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
|
|
}
|
|
|
|
static ssize_t
|
|
ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
|
|
}
|
|
|
|
static ssize_t
|
|
fw_cmds_outstanding_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
|
|
}
|
|
|
|
static ssize_t
|
|
enable_sdev_max_qd_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd);
|
|
}
|
|
|
|
static ssize_t
|
|
enable_sdev_max_qd_store(struct device *cdev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
|
|
u32 val = 0;
|
|
bool is_target_prop;
|
|
int ret_target_prop = DCMD_FAILED;
|
|
struct scsi_device *sdev;
|
|
|
|
if (kstrtou32(buf, 0, &val) != 0) {
|
|
pr_err("megasas: could not set enable_sdev_max_qd\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
if (val)
|
|
instance->enable_sdev_max_qd = true;
|
|
else
|
|
instance->enable_sdev_max_qd = false;
|
|
|
|
shost_for_each_device(sdev, shost) {
|
|
ret_target_prop = megasas_get_target_prop(instance, sdev);
|
|
is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
|
|
megasas_set_fw_assisted_qd(sdev, is_target_prop);
|
|
}
|
|
mutex_unlock(&instance->reset_mutex);
|
|
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t
|
|
dump_system_regs_show(struct device *cdev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)shost->hostdata;
|
|
|
|
return megasas_dump_sys_regs(instance->reg_set, buf);
|
|
}
|
|
|
|
static ssize_t
|
|
raid_map_id_show(struct device *cdev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(cdev);
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)shost->hostdata;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%ld\n",
|
|
(unsigned long)instance->map_id);
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(fw_crash_buffer);
|
|
static DEVICE_ATTR_RO(fw_crash_buffer_size);
|
|
static DEVICE_ATTR_RW(fw_crash_state);
|
|
static DEVICE_ATTR_RO(page_size);
|
|
static DEVICE_ATTR_RO(ldio_outstanding);
|
|
static DEVICE_ATTR_RO(fw_cmds_outstanding);
|
|
static DEVICE_ATTR_RW(enable_sdev_max_qd);
|
|
static DEVICE_ATTR_RO(dump_system_regs);
|
|
static DEVICE_ATTR_RO(raid_map_id);
|
|
|
|
static struct attribute *megaraid_host_attrs[] = {
|
|
&dev_attr_fw_crash_buffer_size.attr,
|
|
&dev_attr_fw_crash_buffer.attr,
|
|
&dev_attr_fw_crash_state.attr,
|
|
&dev_attr_page_size.attr,
|
|
&dev_attr_ldio_outstanding.attr,
|
|
&dev_attr_fw_cmds_outstanding.attr,
|
|
&dev_attr_enable_sdev_max_qd.attr,
|
|
&dev_attr_dump_system_regs.attr,
|
|
&dev_attr_raid_map_id.attr,
|
|
NULL,
|
|
};
|
|
|
|
ATTRIBUTE_GROUPS(megaraid_host);
|
|
|
|
/*
|
|
* Scsi host template for megaraid_sas driver
|
|
*/
|
|
static struct scsi_host_template megasas_template = {
|
|
|
|
.module = THIS_MODULE,
|
|
.name = "Avago SAS based MegaRAID driver",
|
|
.proc_name = "megaraid_sas",
|
|
.slave_configure = megasas_slave_configure,
|
|
.slave_alloc = megasas_slave_alloc,
|
|
.slave_destroy = megasas_slave_destroy,
|
|
.queuecommand = megasas_queue_command,
|
|
.eh_target_reset_handler = megasas_reset_target,
|
|
.eh_abort_handler = megasas_task_abort,
|
|
.eh_host_reset_handler = megasas_reset_bus_host,
|
|
.eh_timed_out = megasas_reset_timer,
|
|
.shost_groups = megaraid_host_groups,
|
|
.bios_param = megasas_bios_param,
|
|
.map_queues = megasas_map_queues,
|
|
.mq_poll = megasas_blk_mq_poll,
|
|
.change_queue_depth = scsi_change_queue_depth,
|
|
.max_segment_size = 0xffffffff,
|
|
.cmd_size = sizeof(struct megasas_cmd_priv),
|
|
};
|
|
|
|
/**
|
|
* megasas_complete_int_cmd - Completes an internal command
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command to be completed
|
|
*
|
|
* The megasas_issue_blocked_cmd() function waits for a command to complete
|
|
* after it issues a command. This function wakes up that waiting routine by
|
|
* calling wake_up() on the wait queue.
|
|
*/
|
|
static void
|
|
megasas_complete_int_cmd(struct megasas_instance *instance,
|
|
struct megasas_cmd *cmd)
|
|
{
|
|
if (cmd->cmd_status_drv == DCMD_INIT)
|
|
cmd->cmd_status_drv =
|
|
(cmd->frame->io.cmd_status == MFI_STAT_OK) ?
|
|
DCMD_SUCCESS : DCMD_FAILED;
|
|
|
|
wake_up(&instance->int_cmd_wait_q);
|
|
}
|
|
|
|
/**
|
|
* megasas_complete_abort - Completes aborting a command
|
|
* @instance: Adapter soft state
|
|
* @cmd: Cmd that was issued to abort another cmd
|
|
*
|
|
* The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
|
|
* after it issues an abort on a previously issued command. This function
|
|
* wakes up all functions waiting on the same wait queue.
|
|
*/
|
|
static void
|
|
megasas_complete_abort(struct megasas_instance *instance,
|
|
struct megasas_cmd *cmd)
|
|
{
|
|
if (cmd->sync_cmd) {
|
|
cmd->sync_cmd = 0;
|
|
cmd->cmd_status_drv = DCMD_SUCCESS;
|
|
wake_up(&instance->abort_cmd_wait_q);
|
|
}
|
|
}
|
|
|
|
static void
|
|
megasas_set_ld_removed_by_fw(struct megasas_instance *instance)
|
|
{
|
|
uint i;
|
|
|
|
for (i = 0; (i < MEGASAS_MAX_LD_IDS); i++) {
|
|
if (instance->ld_ids_prev[i] != 0xff &&
|
|
instance->ld_ids_from_raidmap[i] == 0xff) {
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"LD target ID %d removed from RAID map\n", i);
|
|
instance->ld_tgtid_status[i] = LD_TARGET_ID_DELETED;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_complete_cmd - Completes a command
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command to be completed
|
|
* @alt_status: If non-zero, use this value as status to
|
|
* SCSI mid-layer instead of the value returned
|
|
* by the FW. This should be used if caller wants
|
|
* an alternate status (as in the case of aborted
|
|
* commands)
|
|
*/
|
|
void
|
|
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
|
|
u8 alt_status)
|
|
{
|
|
int exception = 0;
|
|
struct megasas_header *hdr = &cmd->frame->hdr;
|
|
unsigned long flags;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
u32 opcode, status;
|
|
|
|
/* flag for the retry reset */
|
|
cmd->retry_for_fw_reset = 0;
|
|
|
|
if (cmd->scmd)
|
|
megasas_priv(cmd->scmd)->cmd_priv = NULL;
|
|
|
|
switch (hdr->cmd) {
|
|
case MFI_CMD_INVALID:
|
|
/* Some older 1068 controller FW may keep a pended
|
|
MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
|
|
when booting the kdump kernel. Ignore this command to
|
|
prevent a kernel panic on shutdown of the kdump kernel. */
|
|
dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
|
|
"completed\n");
|
|
dev_warn(&instance->pdev->dev, "If you have a controller "
|
|
"other than PERC5, please upgrade your firmware\n");
|
|
break;
|
|
case MFI_CMD_PD_SCSI_IO:
|
|
case MFI_CMD_LD_SCSI_IO:
|
|
|
|
/*
|
|
* MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
|
|
* issued either through an IO path or an IOCTL path. If it
|
|
* was via IOCTL, we will send it to internal completion.
|
|
*/
|
|
if (cmd->sync_cmd) {
|
|
cmd->sync_cmd = 0;
|
|
megasas_complete_int_cmd(instance, cmd);
|
|
break;
|
|
}
|
|
fallthrough;
|
|
|
|
case MFI_CMD_LD_READ:
|
|
case MFI_CMD_LD_WRITE:
|
|
|
|
if (alt_status) {
|
|
cmd->scmd->result = alt_status << 16;
|
|
exception = 1;
|
|
}
|
|
|
|
if (exception) {
|
|
|
|
atomic_dec(&instance->fw_outstanding);
|
|
|
|
scsi_dma_unmap(cmd->scmd);
|
|
scsi_done(cmd->scmd);
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
break;
|
|
}
|
|
|
|
switch (hdr->cmd_status) {
|
|
|
|
case MFI_STAT_OK:
|
|
cmd->scmd->result = DID_OK << 16;
|
|
break;
|
|
|
|
case MFI_STAT_SCSI_IO_FAILED:
|
|
case MFI_STAT_LD_INIT_IN_PROGRESS:
|
|
cmd->scmd->result =
|
|
(DID_ERROR << 16) | hdr->scsi_status;
|
|
break;
|
|
|
|
case MFI_STAT_SCSI_DONE_WITH_ERROR:
|
|
|
|
cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
|
|
|
|
if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
|
|
memset(cmd->scmd->sense_buffer, 0,
|
|
SCSI_SENSE_BUFFERSIZE);
|
|
memcpy(cmd->scmd->sense_buffer, cmd->sense,
|
|
hdr->sense_len);
|
|
}
|
|
|
|
break;
|
|
|
|
case MFI_STAT_LD_OFFLINE:
|
|
case MFI_STAT_DEVICE_NOT_FOUND:
|
|
cmd->scmd->result = DID_BAD_TARGET << 16;
|
|
break;
|
|
|
|
default:
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
|
|
hdr->cmd_status);
|
|
cmd->scmd->result = DID_ERROR << 16;
|
|
break;
|
|
}
|
|
|
|
atomic_dec(&instance->fw_outstanding);
|
|
|
|
scsi_dma_unmap(cmd->scmd);
|
|
scsi_done(cmd->scmd);
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
break;
|
|
|
|
case MFI_CMD_SMP:
|
|
case MFI_CMD_STP:
|
|
case MFI_CMD_NVME:
|
|
case MFI_CMD_TOOLBOX:
|
|
megasas_complete_int_cmd(instance, cmd);
|
|
break;
|
|
|
|
case MFI_CMD_DCMD:
|
|
opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
|
|
/* Check for LD map update */
|
|
if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
|
|
&& (cmd->frame->dcmd.mbox.b[1] == 1)) {
|
|
fusion->fast_path_io = 0;
|
|
spin_lock_irqsave(instance->host->host_lock, flags);
|
|
status = cmd->frame->hdr.cmd_status;
|
|
instance->map_update_cmd = NULL;
|
|
if (status != MFI_STAT_OK) {
|
|
if (status != MFI_STAT_NOT_FOUND)
|
|
dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
|
|
cmd->frame->hdr.cmd_status);
|
|
else {
|
|
megasas_return_cmd(instance, cmd);
|
|
spin_unlock_irqrestore(
|
|
instance->host->host_lock,
|
|
flags);
|
|
break;
|
|
}
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
/*
|
|
* Set fast path IO to ZERO.
|
|
* Validate Map will set proper value.
|
|
* Meanwhile all IOs will go as LD IO.
|
|
*/
|
|
if (status == MFI_STAT_OK &&
|
|
(MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
|
|
instance->map_id++;
|
|
fusion->fast_path_io = 1;
|
|
} else {
|
|
fusion->fast_path_io = 0;
|
|
}
|
|
|
|
if (instance->adapter_type >= INVADER_SERIES)
|
|
megasas_set_ld_removed_by_fw(instance);
|
|
|
|
megasas_sync_map_info(instance);
|
|
spin_unlock_irqrestore(instance->host->host_lock,
|
|
flags);
|
|
|
|
break;
|
|
}
|
|
if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
|
|
opcode == MR_DCMD_CTRL_EVENT_GET) {
|
|
spin_lock_irqsave(&poll_aen_lock, flags);
|
|
megasas_poll_wait_aen = 0;
|
|
spin_unlock_irqrestore(&poll_aen_lock, flags);
|
|
}
|
|
|
|
/* FW has an updated PD sequence */
|
|
if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
|
|
(cmd->frame->dcmd.mbox.b[0] == 1)) {
|
|
|
|
spin_lock_irqsave(instance->host->host_lock, flags);
|
|
status = cmd->frame->hdr.cmd_status;
|
|
instance->jbod_seq_cmd = NULL;
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
if (status == MFI_STAT_OK) {
|
|
instance->pd_seq_map_id++;
|
|
/* Re-register a pd sync seq num cmd */
|
|
if (megasas_sync_pd_seq_num(instance, true))
|
|
instance->use_seqnum_jbod_fp = false;
|
|
} else
|
|
instance->use_seqnum_jbod_fp = false;
|
|
|
|
spin_unlock_irqrestore(instance->host->host_lock, flags);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* See if got an event notification
|
|
*/
|
|
if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
|
|
megasas_service_aen(instance, cmd);
|
|
else
|
|
megasas_complete_int_cmd(instance, cmd);
|
|
|
|
break;
|
|
|
|
case MFI_CMD_ABORT:
|
|
/*
|
|
* Cmd issued to abort another cmd returned
|
|
*/
|
|
megasas_complete_abort(instance, cmd);
|
|
break;
|
|
|
|
default:
|
|
dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
|
|
hdr->cmd);
|
|
megasas_complete_int_cmd(instance, cmd);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_pending_cmds_again - issue all pending cmds
|
|
* in FW again because of the fw reset
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void
|
|
megasas_issue_pending_cmds_again(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct list_head clist_local;
|
|
union megasas_evt_class_locale class_locale;
|
|
unsigned long flags;
|
|
u32 seq_num;
|
|
|
|
INIT_LIST_HEAD(&clist_local);
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
list_splice_init(&instance->internal_reset_pending_q, &clist_local);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
|
|
while (!list_empty(&clist_local)) {
|
|
cmd = list_entry((&clist_local)->next,
|
|
struct megasas_cmd, list);
|
|
list_del_init(&cmd->list);
|
|
|
|
if (cmd->sync_cmd || cmd->scmd) {
|
|
dev_notice(&instance->pdev->dev, "command %p, %p:%d"
|
|
"detected to be pending while HBA reset\n",
|
|
cmd, cmd->scmd, cmd->sync_cmd);
|
|
|
|
cmd->retry_for_fw_reset++;
|
|
|
|
if (cmd->retry_for_fw_reset == 3) {
|
|
dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
|
|
"was tried multiple times during reset."
|
|
"Shutting down the HBA\n",
|
|
cmd, cmd->scmd, cmd->sync_cmd);
|
|
instance->instancet->disable_intr(instance);
|
|
atomic_set(&instance->fw_reset_no_pci_access, 1);
|
|
megaraid_sas_kill_hba(instance);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (cmd->sync_cmd == 1) {
|
|
if (cmd->scmd) {
|
|
dev_notice(&instance->pdev->dev, "unexpected"
|
|
"cmd attached to internal command!\n");
|
|
}
|
|
dev_notice(&instance->pdev->dev, "%p synchronous cmd"
|
|
"on the internal reset queue,"
|
|
"issue it again.\n", cmd);
|
|
cmd->cmd_status_drv = DCMD_INIT;
|
|
instance->instancet->fire_cmd(instance,
|
|
cmd->frame_phys_addr,
|
|
0, instance->reg_set);
|
|
} else if (cmd->scmd) {
|
|
dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
|
|
"detected on the internal queue, issue again.\n",
|
|
cmd, cmd->scmd->cmnd[0]);
|
|
|
|
atomic_inc(&instance->fw_outstanding);
|
|
instance->instancet->fire_cmd(instance,
|
|
cmd->frame_phys_addr,
|
|
cmd->frame_count-1, instance->reg_set);
|
|
} else {
|
|
dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
|
|
"internal reset defer list while re-issue!!\n",
|
|
cmd);
|
|
}
|
|
}
|
|
|
|
if (instance->aen_cmd) {
|
|
dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
|
|
megasas_return_cmd(instance, instance->aen_cmd);
|
|
|
|
instance->aen_cmd = NULL;
|
|
}
|
|
|
|
/*
|
|
* Initiate AEN (Asynchronous Event Notification)
|
|
*/
|
|
seq_num = instance->last_seq_num;
|
|
class_locale.members.reserved = 0;
|
|
class_locale.members.locale = MR_EVT_LOCALE_ALL;
|
|
class_locale.members.class = MR_EVT_CLASS_DEBUG;
|
|
|
|
megasas_register_aen(instance, seq_num, class_locale.word);
|
|
}
|
|
|
|
/*
|
|
* Move the internal reset pending commands to a deferred queue.
|
|
*
|
|
* We move the commands pending at internal reset time to a
|
|
* pending queue. This queue would be flushed after successful
|
|
* completion of the internal reset sequence. if the internal reset
|
|
* did not complete in time, the kernel reset handler would flush
|
|
* these commands.
|
|
*/
|
|
static void
|
|
megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
int i;
|
|
u16 max_cmd = instance->max_fw_cmds;
|
|
u32 defer_index;
|
|
unsigned long flags;
|
|
|
|
defer_index = 0;
|
|
spin_lock_irqsave(&instance->mfi_pool_lock, flags);
|
|
for (i = 0; i < max_cmd; i++) {
|
|
cmd = instance->cmd_list[i];
|
|
if (cmd->sync_cmd == 1 || cmd->scmd) {
|
|
dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
|
|
"on the defer queue as internal\n",
|
|
defer_index, cmd, cmd->sync_cmd, cmd->scmd);
|
|
|
|
if (!list_empty(&cmd->list)) {
|
|
dev_notice(&instance->pdev->dev, "ERROR while"
|
|
" moving this cmd:%p, %d %p, it was"
|
|
"discovered on some list?\n",
|
|
cmd, cmd->sync_cmd, cmd->scmd);
|
|
|
|
list_del_init(&cmd->list);
|
|
}
|
|
defer_index++;
|
|
list_add_tail(&cmd->list,
|
|
&instance->internal_reset_pending_q);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
|
|
}
|
|
|
|
|
|
static void
|
|
process_fw_state_change_wq(struct work_struct *work)
|
|
{
|
|
struct megasas_instance *instance =
|
|
container_of(work, struct megasas_instance, work_init);
|
|
u32 wait;
|
|
unsigned long flags;
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
|
|
dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
|
|
atomic_read(&instance->adprecovery));
|
|
return ;
|
|
}
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
|
|
dev_notice(&instance->pdev->dev, "FW detected to be in fault"
|
|
"state, restarting it...\n");
|
|
|
|
instance->instancet->disable_intr(instance);
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
|
|
atomic_set(&instance->fw_reset_no_pci_access, 1);
|
|
instance->instancet->adp_reset(instance, instance->reg_set);
|
|
atomic_set(&instance->fw_reset_no_pci_access, 0);
|
|
|
|
dev_notice(&instance->pdev->dev, "FW restarted successfully,"
|
|
"initiating next stage...\n");
|
|
|
|
dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
|
|
"state 2 starting...\n");
|
|
|
|
/* waiting for about 20 second before start the second init */
|
|
for (wait = 0; wait < 30; wait++) {
|
|
msleep(1000);
|
|
}
|
|
|
|
if (megasas_transition_to_ready(instance, 1)) {
|
|
dev_notice(&instance->pdev->dev, "adapter not ready\n");
|
|
|
|
atomic_set(&instance->fw_reset_no_pci_access, 1);
|
|
megaraid_sas_kill_hba(instance);
|
|
return ;
|
|
}
|
|
|
|
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
|
|
) {
|
|
*instance->consumer = *instance->producer;
|
|
} else {
|
|
*instance->consumer = 0;
|
|
*instance->producer = 0;
|
|
}
|
|
|
|
megasas_issue_init_mfi(instance);
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
instance->instancet->enable_intr(instance);
|
|
|
|
megasas_issue_pending_cmds_again(instance);
|
|
instance->issuepend_done = 1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_deplete_reply_queue - Processes all completed commands
|
|
* @instance: Adapter soft state
|
|
* @alt_status: Alternate status to be returned to
|
|
* SCSI mid-layer instead of the status
|
|
* returned by the FW
|
|
* Note: this must be called with hba lock held
|
|
*/
|
|
static int
|
|
megasas_deplete_reply_queue(struct megasas_instance *instance,
|
|
u8 alt_status)
|
|
{
|
|
u32 mfiStatus;
|
|
u32 fw_state;
|
|
|
|
if (instance->instancet->check_reset(instance, instance->reg_set) == 1)
|
|
return IRQ_HANDLED;
|
|
|
|
mfiStatus = instance->instancet->clear_intr(instance);
|
|
if (mfiStatus == 0) {
|
|
/* Hardware may not set outbound_intr_status in MSI-X mode */
|
|
if (!instance->msix_vectors)
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
instance->mfiStatus = mfiStatus;
|
|
|
|
if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
|
|
fw_state = instance->instancet->read_fw_status_reg(
|
|
instance) & MFI_STATE_MASK;
|
|
|
|
if (fw_state != MFI_STATE_FAULT) {
|
|
dev_notice(&instance->pdev->dev, "fw state:%x\n",
|
|
fw_state);
|
|
}
|
|
|
|
if ((fw_state == MFI_STATE_FAULT) &&
|
|
(instance->disableOnlineCtrlReset == 0)) {
|
|
dev_notice(&instance->pdev->dev, "wait adp restart\n");
|
|
|
|
if ((instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS1064R) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_DELL_PERC5) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
|
|
|
|
*instance->consumer =
|
|
cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
|
|
}
|
|
|
|
|
|
instance->instancet->disable_intr(instance);
|
|
atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
|
|
instance->issuepend_done = 0;
|
|
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
megasas_internal_reset_defer_cmds(instance);
|
|
|
|
dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
|
|
fw_state, atomic_read(&instance->adprecovery));
|
|
|
|
schedule_work(&instance->work_init);
|
|
return IRQ_HANDLED;
|
|
|
|
} else {
|
|
dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
|
|
fw_state, instance->disableOnlineCtrlReset);
|
|
}
|
|
}
|
|
|
|
tasklet_schedule(&instance->isr_tasklet);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* megasas_isr - isr entry point
|
|
* @irq: IRQ number
|
|
* @devp: IRQ context address
|
|
*/
|
|
static irqreturn_t megasas_isr(int irq, void *devp)
|
|
{
|
|
struct megasas_irq_context *irq_context = devp;
|
|
struct megasas_instance *instance = irq_context->instance;
|
|
unsigned long flags;
|
|
irqreturn_t rc;
|
|
|
|
if (atomic_read(&instance->fw_reset_no_pci_access))
|
|
return IRQ_HANDLED;
|
|
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
rc = megasas_deplete_reply_queue(instance, DID_OK);
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* megasas_transition_to_ready - Move the FW to READY state
|
|
* @instance: Adapter soft state
|
|
* @ocr: Adapter reset state
|
|
*
|
|
* During the initialization, FW passes can potentially be in any one of
|
|
* several possible states. If the FW in operational, waiting-for-handshake
|
|
* states, driver must take steps to bring it to ready state. Otherwise, it
|
|
* has to wait for the ready state.
|
|
*/
|
|
int
|
|
megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
|
|
{
|
|
int i;
|
|
u8 max_wait;
|
|
u32 fw_state;
|
|
u32 abs_state, curr_abs_state;
|
|
|
|
abs_state = instance->instancet->read_fw_status_reg(instance);
|
|
fw_state = abs_state & MFI_STATE_MASK;
|
|
|
|
if (fw_state != MFI_STATE_READY)
|
|
dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
|
|
" state\n");
|
|
|
|
while (fw_state != MFI_STATE_READY) {
|
|
|
|
switch (fw_state) {
|
|
|
|
case MFI_STATE_FAULT:
|
|
dev_printk(KERN_ERR, &instance->pdev->dev,
|
|
"FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n",
|
|
abs_state & MFI_STATE_FAULT_CODE,
|
|
abs_state & MFI_STATE_FAULT_SUBCODE, __func__);
|
|
if (ocr) {
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
} else {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
|
|
megasas_dump_reg_set(instance->reg_set);
|
|
return -ENODEV;
|
|
}
|
|
|
|
case MFI_STATE_WAIT_HANDSHAKE:
|
|
/*
|
|
* Set the CLR bit in inbound doorbell
|
|
*/
|
|
if ((instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
|
|
(instance->adapter_type != MFI_SERIES))
|
|
writel(
|
|
MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
|
|
&instance->reg_set->doorbell);
|
|
else
|
|
writel(
|
|
MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
|
|
&instance->reg_set->inbound_doorbell);
|
|
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_BOOT_MESSAGE_PENDING:
|
|
if ((instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
|
|
(instance->adapter_type != MFI_SERIES))
|
|
writel(MFI_INIT_HOTPLUG,
|
|
&instance->reg_set->doorbell);
|
|
else
|
|
writel(MFI_INIT_HOTPLUG,
|
|
&instance->reg_set->inbound_doorbell);
|
|
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_OPERATIONAL:
|
|
/*
|
|
* Bring it to READY state; assuming max wait 10 secs
|
|
*/
|
|
instance->instancet->disable_intr(instance);
|
|
if ((instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
|
|
(instance->adapter_type != MFI_SERIES)) {
|
|
writel(MFI_RESET_FLAGS,
|
|
&instance->reg_set->doorbell);
|
|
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
for (i = 0; i < (10 * 1000); i += 20) {
|
|
if (megasas_readl(
|
|
instance,
|
|
&instance->
|
|
reg_set->
|
|
doorbell) & 1)
|
|
msleep(20);
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
} else
|
|
writel(MFI_RESET_FLAGS,
|
|
&instance->reg_set->inbound_doorbell);
|
|
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_UNDEFINED:
|
|
/*
|
|
* This state should not last for more than 2 seconds
|
|
*/
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_BB_INIT:
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_FW_INIT:
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_FW_INIT_2:
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_DEVICE_SCAN:
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
case MFI_STATE_FLUSH_CACHE:
|
|
max_wait = MEGASAS_RESET_WAIT_TIME;
|
|
break;
|
|
|
|
default:
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
|
|
fw_state);
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
|
|
megasas_dump_reg_set(instance->reg_set);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* The cur_state should not last for more than max_wait secs
|
|
*/
|
|
for (i = 0; i < max_wait * 50; i++) {
|
|
curr_abs_state = instance->instancet->
|
|
read_fw_status_reg(instance);
|
|
|
|
if (abs_state == curr_abs_state) {
|
|
msleep(20);
|
|
} else
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Return error if fw_state hasn't changed after max_wait
|
|
*/
|
|
if (curr_abs_state == abs_state) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
|
|
"in %d secs\n", fw_state, max_wait);
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
|
|
megasas_dump_reg_set(instance->reg_set);
|
|
return -ENODEV;
|
|
}
|
|
|
|
abs_state = curr_abs_state;
|
|
fw_state = curr_abs_state & MFI_STATE_MASK;
|
|
}
|
|
dev_info(&instance->pdev->dev, "FW now in Ready state\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static void megasas_teardown_frame_pool(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
u16 max_cmd = instance->max_mfi_cmds;
|
|
struct megasas_cmd *cmd;
|
|
|
|
if (!instance->frame_dma_pool)
|
|
return;
|
|
|
|
/*
|
|
* Return all frames to pool
|
|
*/
|
|
for (i = 0; i < max_cmd; i++) {
|
|
|
|
cmd = instance->cmd_list[i];
|
|
|
|
if (cmd->frame)
|
|
dma_pool_free(instance->frame_dma_pool, cmd->frame,
|
|
cmd->frame_phys_addr);
|
|
|
|
if (cmd->sense)
|
|
dma_pool_free(instance->sense_dma_pool, cmd->sense,
|
|
cmd->sense_phys_addr);
|
|
}
|
|
|
|
/*
|
|
* Now destroy the pool itself
|
|
*/
|
|
dma_pool_destroy(instance->frame_dma_pool);
|
|
dma_pool_destroy(instance->sense_dma_pool);
|
|
|
|
instance->frame_dma_pool = NULL;
|
|
instance->sense_dma_pool = NULL;
|
|
}
|
|
|
|
/**
|
|
* megasas_create_frame_pool - Creates DMA pool for cmd frames
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Each command packet has an embedded DMA memory buffer that is used for
|
|
* filling MFI frame and the SG list that immediately follows the frame. This
|
|
* function creates those DMA memory buffers for each command packet by using
|
|
* PCI pool facility.
|
|
*/
|
|
static int megasas_create_frame_pool(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
u16 max_cmd;
|
|
u32 frame_count;
|
|
struct megasas_cmd *cmd;
|
|
|
|
max_cmd = instance->max_mfi_cmds;
|
|
|
|
/*
|
|
* For MFI controllers.
|
|
* max_num_sge = 60
|
|
* max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
|
|
* Total 960 byte (15 MFI frame of 64 byte)
|
|
*
|
|
* Fusion adapter require only 3 extra frame.
|
|
* max_num_sge = 16 (defined as MAX_IOCTL_SGE)
|
|
* max_sge_sz = 12 byte (sizeof megasas_sge64)
|
|
* Total 192 byte (3 MFI frame of 64 byte)
|
|
*/
|
|
frame_count = (instance->adapter_type == MFI_SERIES) ?
|
|
(15 + 1) : (3 + 1);
|
|
instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
|
|
/*
|
|
* Use DMA pool facility provided by PCI layer
|
|
*/
|
|
instance->frame_dma_pool = dma_pool_create("megasas frame pool",
|
|
&instance->pdev->dev,
|
|
instance->mfi_frame_size, 256, 0);
|
|
|
|
if (!instance->frame_dma_pool) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->sense_dma_pool = dma_pool_create("megasas sense pool",
|
|
&instance->pdev->dev, 128,
|
|
4, 0);
|
|
|
|
if (!instance->sense_dma_pool) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
|
|
|
|
dma_pool_destroy(instance->frame_dma_pool);
|
|
instance->frame_dma_pool = NULL;
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Allocate and attach a frame to each of the commands in cmd_list.
|
|
* By making cmd->index as the context instead of the &cmd, we can
|
|
* always use 32bit context regardless of the architecture
|
|
*/
|
|
for (i = 0; i < max_cmd; i++) {
|
|
|
|
cmd = instance->cmd_list[i];
|
|
|
|
cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,
|
|
GFP_KERNEL, &cmd->frame_phys_addr);
|
|
|
|
cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
|
|
GFP_KERNEL, &cmd->sense_phys_addr);
|
|
|
|
/*
|
|
* megasas_teardown_frame_pool() takes care of freeing
|
|
* whatever has been allocated
|
|
*/
|
|
if (!cmd->frame || !cmd->sense) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
|
|
megasas_teardown_frame_pool(instance);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd->frame->io.context = cpu_to_le32(cmd->index);
|
|
cmd->frame->io.pad_0 = 0;
|
|
if ((instance->adapter_type == MFI_SERIES) && reset_devices)
|
|
cmd->frame->hdr.cmd = MFI_CMD_INVALID;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_free_cmds - Free all the cmds in the free cmd pool
|
|
* @instance: Adapter soft state
|
|
*/
|
|
void megasas_free_cmds(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
|
|
/* First free the MFI frame pool */
|
|
megasas_teardown_frame_pool(instance);
|
|
|
|
/* Free all the commands in the cmd_list */
|
|
for (i = 0; i < instance->max_mfi_cmds; i++)
|
|
|
|
kfree(instance->cmd_list[i]);
|
|
|
|
/* Free the cmd_list buffer itself */
|
|
kfree(instance->cmd_list);
|
|
instance->cmd_list = NULL;
|
|
|
|
INIT_LIST_HEAD(&instance->cmd_pool);
|
|
}
|
|
|
|
/**
|
|
* megasas_alloc_cmds - Allocates the command packets
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Each command that is issued to the FW, whether IO commands from the OS or
|
|
* internal commands like IOCTLs, are wrapped in local data structure called
|
|
* megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
|
|
* the FW.
|
|
*
|
|
* Each frame has a 32-bit field called context (tag). This context is used
|
|
* to get back the megasas_cmd from the frame when a frame gets completed in
|
|
* the ISR. Typically the address of the megasas_cmd itself would be used as
|
|
* the context. But we wanted to keep the differences between 32 and 64 bit
|
|
* systems to the mininum. We always use 32 bit integers for the context. In
|
|
* this driver, the 32 bit values are the indices into an array cmd_list.
|
|
* This array is used only to look up the megasas_cmd given the context. The
|
|
* free commands themselves are maintained in a linked list called cmd_pool.
|
|
*/
|
|
int megasas_alloc_cmds(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
int j;
|
|
u16 max_cmd;
|
|
struct megasas_cmd *cmd;
|
|
|
|
max_cmd = instance->max_mfi_cmds;
|
|
|
|
/*
|
|
* instance->cmd_list is an array of struct megasas_cmd pointers.
|
|
* Allocate the dynamic array first and then allocate individual
|
|
* commands.
|
|
*/
|
|
instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
|
|
|
|
if (!instance->cmd_list) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < max_cmd; i++) {
|
|
instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
|
|
GFP_KERNEL);
|
|
|
|
if (!instance->cmd_list[i]) {
|
|
|
|
for (j = 0; j < i; j++)
|
|
kfree(instance->cmd_list[j]);
|
|
|
|
kfree(instance->cmd_list);
|
|
instance->cmd_list = NULL;
|
|
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < max_cmd; i++) {
|
|
cmd = instance->cmd_list[i];
|
|
memset(cmd, 0, sizeof(struct megasas_cmd));
|
|
cmd->index = i;
|
|
cmd->scmd = NULL;
|
|
cmd->instance = instance;
|
|
|
|
list_add_tail(&cmd->list, &instance->cmd_pool);
|
|
}
|
|
|
|
/*
|
|
* Create a frame pool and assign one frame to each cmd
|
|
*/
|
|
if (megasas_create_frame_pool(instance)) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
|
|
megasas_free_cmds(instance);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Return 0 for only Fusion adapter, if driver load/unload is not in progress
|
|
* or FW is not under OCR.
|
|
*/
|
|
inline int
|
|
dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
|
|
|
|
if (instance->adapter_type == MFI_SERIES)
|
|
return KILL_ADAPTER;
|
|
else if (instance->unload ||
|
|
test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE,
|
|
&instance->reset_flags))
|
|
return IGNORE_TIMEOUT;
|
|
else
|
|
return INITIATE_OCR;
|
|
}
|
|
|
|
static void
|
|
megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
|
|
{
|
|
int ret;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
u16 device_id = 0;
|
|
|
|
device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
|
|
return;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(instance->pd_info, 0, sizeof(*instance->pd_info));
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->mbox.s[0] = cpu_to_le16(device_id);
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0xFF;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = MFI_FRAME_DIR_READ;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
|
|
sizeof(struct MR_PD_INFO));
|
|
|
|
if ((instance->adapter_type != MFI_SERIES) &&
|
|
!instance->mask_interrupts)
|
|
ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
|
|
else
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
|
|
switch (ret) {
|
|
case DCMD_SUCCESS:
|
|
mr_device_priv_data = sdev->hostdata;
|
|
le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
|
|
mr_device_priv_data->interface_type =
|
|
instance->pd_info->state.ddf.pdType.intf;
|
|
break;
|
|
|
|
case DCMD_TIMEOUT:
|
|
|
|
switch (dcmd_timeout_ocr_possible(instance)) {
|
|
case INITIATE_OCR:
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
mutex_unlock(&instance->reset_mutex);
|
|
megasas_reset_fusion(instance->host,
|
|
MFI_IO_TIMEOUT_OCR);
|
|
mutex_lock(&instance->reset_mutex);
|
|
break;
|
|
case KILL_ADAPTER:
|
|
megaraid_sas_kill_hba(instance);
|
|
break;
|
|
case IGNORE_TIMEOUT:
|
|
dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
|
|
__func__, __LINE__);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return;
|
|
}
|
|
/*
|
|
* megasas_get_pd_list_info - Returns FW's pd_list structure
|
|
* @instance: Adapter soft state
|
|
* @pd_list: pd_list structure
|
|
*
|
|
* Issues an internal command (DCMD) to get the FW's controller PD
|
|
* list structure. This information is mainly used to find out SYSTEM
|
|
* supported by the FW.
|
|
*/
|
|
static int
|
|
megasas_get_pd_list(struct megasas_instance *instance)
|
|
{
|
|
int ret = 0, pd_index = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_PD_LIST *ci;
|
|
struct MR_PD_ADDRESS *pd_addr;
|
|
|
|
if (instance->pd_list_not_supported) {
|
|
dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
|
|
"not supported by firmware\n");
|
|
return ret;
|
|
}
|
|
|
|
ci = instance->pd_list_buf;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(ci, 0, sizeof(*ci));
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
|
|
dcmd->mbox.b[1] = 0;
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = MFI_FRAME_DIR_READ;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
|
|
(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
|
|
|
|
if ((instance->adapter_type != MFI_SERIES) &&
|
|
!instance->mask_interrupts)
|
|
ret = megasas_issue_blocked_cmd(instance, cmd,
|
|
MFI_IO_TIMEOUT_SECS);
|
|
else
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
|
|
switch (ret) {
|
|
case DCMD_FAILED:
|
|
dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
|
|
"failed/not supported by firmware\n");
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megaraid_sas_kill_hba(instance);
|
|
else
|
|
instance->pd_list_not_supported = 1;
|
|
break;
|
|
case DCMD_TIMEOUT:
|
|
|
|
switch (dcmd_timeout_ocr_possible(instance)) {
|
|
case INITIATE_OCR:
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
/*
|
|
* DCMD failed from AEN path.
|
|
* AEN path already hold reset_mutex to avoid PCI access
|
|
* while OCR is in progress.
|
|
*/
|
|
mutex_unlock(&instance->reset_mutex);
|
|
megasas_reset_fusion(instance->host,
|
|
MFI_IO_TIMEOUT_OCR);
|
|
mutex_lock(&instance->reset_mutex);
|
|
break;
|
|
case KILL_ADAPTER:
|
|
megaraid_sas_kill_hba(instance);
|
|
break;
|
|
case IGNORE_TIMEOUT:
|
|
dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
|
|
__func__, __LINE__);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
|
|
case DCMD_SUCCESS:
|
|
pd_addr = ci->addr;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n",
|
|
__func__, le32_to_cpu(ci->count));
|
|
|
|
if ((le32_to_cpu(ci->count) >
|
|
(MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
|
|
break;
|
|
|
|
memset(instance->local_pd_list, 0,
|
|
MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
|
|
|
|
for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
|
|
instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
|
|
le16_to_cpu(pd_addr->deviceId);
|
|
instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
|
|
pd_addr->scsiDevType;
|
|
instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
|
|
MR_PD_STATE_SYSTEM;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"PD%d: targetID: 0x%03x deviceType:0x%x\n",
|
|
pd_index, le16_to_cpu(pd_addr->deviceId),
|
|
pd_addr->scsiDevType);
|
|
pd_addr++;
|
|
}
|
|
|