9691 lines
264 KiB
C
Executable File
9691 lines
264 KiB
C
Executable File
/*
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* Linux MegaRAID driver for SAS based RAID controllers
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*
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* Copyright (c) 2003-2018 LSI Corporation.
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* Copyright (c) 2003-2018 Avago Technologies.
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* Copyright (c) 2003-2018 Broadcom Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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/version.h>
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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 <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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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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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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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 crashdump_enable = 1;
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module_param(crashdump_enable, int, 0444);
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MODULE_PARM_DESC(crashdump_enable, "Firmware Crash dump feature enable/disbale Default: enable(1)");
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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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int disable_ext_io;
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module_param(disable_ext_io, int, 0444);
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MODULE_PARM_DESC(disable_ext_io, "Disable 1M IO support Default: 0(1M IO enabled)");
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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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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,12,0))
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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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#else
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MODULE_PARM_DESC(poll_queues, "Not supported for this kernel.");
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#endif
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#if defined(HOST_TAGSET_SUPPORT)
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#if ((defined(RHEL_MAJOR) && (RHEL_MAJOR == 8) && (RHEL_MINOR > 5)) || \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(5,16,0)))
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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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#else
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int host_tagset_enable = 0;
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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: disable(0)\n\t\t"
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"Enabling Shared host tagset is experimental.");
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#endif
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#endif
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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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/*
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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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spinlock_t 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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extern void megasas_init_debugfs(void);
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extern void megasas_exit_debugfs(void);
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extern void megasas_setup_debugfs(struct megasas_instance *instance);
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extern void megasas_destroy_debugfs(struct megasas_instance *instance);
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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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void megasas_free_irq_vectors(struct megasas_instance *instance);
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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;
|
|
memset(cmd->frame, 0, instance->mfi_frame_size);
|
|
cmd->frame->io.context = cpu_to_le32(cmd->index);
|
|
if (!fusion && reset_devices)
|
|
cmd->frame->hdr.cmd = MFI_CMD_INVALID;
|
|
list_add(&cmd->list, (&instance->cmd_pool)->next);
|
|
|
|
spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
|
|
|
|
}
|
|
|
|
static const char *
|
|
format_timestamp(uint32_t timestamp)
|
|
{
|
|
static char buffer[32];
|
|
|
|
if ((timestamp & 0xff000000) == 0xff000000)
|
|
snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
|
|
0x00ffffff);
|
|
else
|
|
snprintf(buffer, sizeof(buffer), "%us", timestamp);
|
|
return buffer;
|
|
}
|
|
|
|
static const char *
|
|
format_class(int8_t class)
|
|
{
|
|
static char buffer[6];
|
|
|
|
switch (class) {
|
|
case MFI_EVT_CLASS_DEBUG:
|
|
return "debug";
|
|
case MFI_EVT_CLASS_PROGRESS:
|
|
return "progress";
|
|
case MFI_EVT_CLASS_INFO:
|
|
return "info";
|
|
case MFI_EVT_CLASS_WARNING:
|
|
return "WARN";
|
|
case MFI_EVT_CLASS_CRITICAL:
|
|
return "CRIT";
|
|
case MFI_EVT_CLASS_FATAL:
|
|
return "FATAL";
|
|
case MFI_EVT_CLASS_DEAD:
|
|
return "DEAD";
|
|
default:
|
|
snprintf(buffer, sizeof(buffer), "%d", class);
|
|
return buffer;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_decode_evt: Decode FW AEN event and print critical event
|
|
* for information.
|
|
* @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)) {
|
|
pr_warn("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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_msg_0);
|
|
}
|
|
/**
|
|
* megasas_clear_interrupt_xscale - Check & clear interrupt
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @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
|
|
* @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
|
|
* @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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_interrupt_ppc - Check & clear interrupt
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @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
|
|
* @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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_interrupt_skinny - Check & clear interrupt
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @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);
|
|
#if !((defined(RHEL_MAJOR) && (RHEL_MAJOR == 8) && (RHEL_MINOR >= 2)) || \
|
|
(LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0)))
|
|
mmiowb();
|
|
#endif
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_skinny - For controller reset check
|
|
* @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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @regs: MFI register set
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)
|
|
{
|
|
return readl(&instance->reg_set->outbound_scratch_pad_0);
|
|
}
|
|
|
|
/**
|
|
* megasas_clear_interrupt_gen2 - Check & clear interrupt
|
|
* @regs: MFI register set
|
|
*/
|
|
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
|
|
* @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
|
|
* @regs: 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
|
|
* @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 ((SCMD_GET_REQUEST(scp)->timeout / HZ) > 0xFFFF)
|
|
pthru->timeout = cpu_to_le16(0xFFFF);
|
|
else
|
|
pthru->timeout = cpu_to_le16(SCMD_GET_REQUEST(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
|
|
* @scmd: 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;
|
|
scmd->SCp.ptr = (char *)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
|
|
* @scmd: SCSI command to be queued
|
|
* @done: Callback entry point
|
|
*/
|
|
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;
|
|
scmd->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;
|
|
scmd->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;
|
|
scmd->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;
|
|
scmd->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:
|
|
scmd->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;
|
|
mr_device_priv_data->is_epd =
|
|
raid->flags.isEPD;
|
|
} 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) {
|
|
/*
|
|
* FW provides a non-zero reset_tmo for NVMe EPD only.
|
|
* For rest of the cases, set the timeout values to default.
|
|
*/
|
|
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;
|
|
}
|
|
}
|
|
|
|
inline void megasas_update_device_queue_depth(struct scsi_device *sdev,
|
|
u32 queue_depth)
|
|
{
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0))
|
|
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), queue_depth);
|
|
#else
|
|
scsi_change_queue_depth(sdev, queue_depth);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* megasas_blk_limits_max_hw_sectors - set hard and soft limit of max sectors for request
|
|
* @limits: the queue limits
|
|
* @max_hw_sectors: max hardware sectors in the usual 512b unit
|
|
*/
|
|
void megasas_blk_limits_max_hw_sectors(struct queue_limits *limits, unsigned int max_hw_sectors)
|
|
{
|
|
if ((max_hw_sectors << 9) < PAGE_SIZE) {
|
|
max_hw_sectors = 1 << (PAGE_SHIFT - 9);
|
|
printk(KERN_INFO "%s: set to minimum %d\n",
|
|
__func__, max_hw_sectors);
|
|
}
|
|
|
|
limits->max_hw_sectors = max_hw_sectors;
|
|
limits->max_sectors = min_t(unsigned int, max_hw_sectors,
|
|
1024);
|
|
}
|
|
|
|
/**
|
|
* megasas_queue_flag_set - atomically set a queue flag
|
|
*
|
|
* @flag: flag to be set
|
|
* @q: request queue
|
|
*/
|
|
static inline void
|
|
megasas_queue_flag_set(unsigned int flag, struct request_queue *q)
|
|
{
|
|
set_bit(flag, &q->queue_flags);
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
|
|
megasas_blk_limits_max_hw_sectors(&sdev->request_queue->limits,
|
|
(max_io_size / 512));
|
|
|
|
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 &&
|
|
(MEGASAS_IS_LOGICAL(sdev) || (interface_type != UNKNOWN_DRIVE))) {
|
|
device_qd = instance->host->can_queue;
|
|
}
|
|
|
|
megasas_update_device_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;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
|
|
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);
|
|
|
|
mr_device_priv_data = sdev->hostdata;
|
|
if (!mr_device_priv_data->is_epd && MEGASAS_IS_LOGICAL(sdev))
|
|
sdev->no_write_same = 1;
|
|
|
|
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);
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0))
|
|
sdev->tagged_supported = 1;
|
|
scsi_activate_tcq(sdev, sdev->queue_depth);
|
|
#endif
|
|
|
|
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;
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0))
|
|
static int megasas_change_queue_depth(struct scsi_device *sdev,
|
|
int queue_depth, int reason)
|
|
{
|
|
if (reason != SCSI_QDEPTH_DEFAULT)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (queue_depth > sdev->host->can_queue)
|
|
queue_depth = sdev->host->can_queue;
|
|
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev),
|
|
queue_depth);
|
|
|
|
return queue_depth;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
dev_warn(&instance->pdev->dev,
|
|
"Kill HBA from %s %d\n", __func__, __LINE__);
|
|
|
|
/* If adapter is already declared dead, do not issue kill HBA again */
|
|
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);
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0))
|
|
static void megasas_sriov_heartbeat_handler(unsigned long instance_addr);
|
|
#else
|
|
static void megasas_sriov_heartbeat_handler(struct timer_list *t);
|
|
#endif
|
|
|
|
/**
|
|
* 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;
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0))
|
|
init_timer(timer);
|
|
timer->data = (unsigned long)instance;
|
|
timer->function = megasas_sriov_heartbeat_handler;
|
|
#else
|
|
timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
|
|
#endif
|
|
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(new_affiliation_111, 0,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111));
|
|
}
|
|
|
|
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(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION));
|
|
}
|
|
|
|
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(instance->hb_host_mem, 0,
|
|
sizeof(struct MR_CTRL_HB_HOST_MEM));
|
|
}
|
|
|
|
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 */
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0))
|
|
static void megasas_sriov_heartbeat_handler(unsigned long instance_addr)
|
|
{
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)instance_addr;
|
|
#else
|
|
static void megasas_sriov_heartbeat_handler(struct timer_list *t)
|
|
{
|
|
struct megasas_instance *instance =
|
|
from_timer(instance, t, sriov_heartbeat_timer);
|
|
#endif
|
|
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]);
|
|
|
|
reset_cmd->scmd->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
|
|
blk_eh_timer_return 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)) {
|
|
/* BLK_EH_NOT_HANDLED and BLK_EH_DONE are macros provided by
|
|
* different kernels for return value, as both macros are defined as 0
|
|
* so returning 0 to avoid kernel version based checks.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
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 BLK_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
|
|
* @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_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;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
struct megasas_instance *instance;
|
|
|
|
cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
|
|
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 += snprintf(loc + bytes_wrote, PAGE_SIZE,
|
|
"%08x: %08x\n", (i * 4),
|
|
readl(®[i]));
|
|
}
|
|
return bytes_wrote;
|
|
}
|
|
/**
|
|
* megasas_reset_bus_host - Bus & host reset handler entry point
|
|
*/
|
|
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 "
|
|
"FW outstanding: %d\n",
|
|
scmd->device->host->shost_state,
|
|
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;
|
|
}
|
|
|
|
#if defined(HOST_TAGSET_SUPPORT)
|
|
static int megasas_map_queues(struct Scsi_Host *shost)
|
|
{
|
|
struct megasas_instance *instance;
|
|
int qoff, offset;
|
|
struct blk_mq_queue_map *map;
|
|
|
|
instance = (struct megasas_instance *)shost->hostdata;
|
|
|
|
if (shost->nr_hw_queues == 1)
|
|
return 0;
|
|
|
|
offset = instance->low_latency_index_start;
|
|
qoff = 0;
|
|
|
|
/* Setup Default hctx */
|
|
map = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
|
|
map->nr_queues = instance->msix_vectors - offset;
|
|
map->queue_offset = 0;
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,12,0))
|
|
return blk_mq_pci_map_queues(map, instance->pdev, offset);
|
|
#else
|
|
blk_mq_pci_map_queues(map, instance->pdev, offset);
|
|
qoff += map->nr_queues;
|
|
|
|
/* 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);
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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
|
|
megasas_ldio_hint_count_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;
|
|
|
|
sscanf(buf, "%u", &val);
|
|
|
|
if (val < 4 || val > 16)
|
|
instance->r1_ldio_hint_default = MR_R1_LDIO_PIGGYBACK_DEFAULT;
|
|
else
|
|
instance->r1_ldio_hint_default = val;
|
|
|
|
return strlen(buf);
|
|
}
|
|
|
|
static ssize_t
|
|
megasas_ldio_hint_count_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->r1_ldio_hint_default);
|
|
}
|
|
|
|
static ssize_t
|
|
megasas_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, "%ld\n",
|
|
(unsigned long) instance->enable_sdev_max_qd);
|
|
}
|
|
|
|
static ssize_t
|
|
megasas_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
|
|
megasas_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
|
|
megasas_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(fw_crash_buffer, S_IRUGO | S_IWUSR,
|
|
megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
|
|
static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
|
|
megasas_fw_crash_buffer_size_show, NULL);
|
|
static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
|
|
megasas_fw_crash_state_show, megasas_fw_crash_state_store);
|
|
static DEVICE_ATTR(page_size, S_IRUGO,
|
|
megasas_page_size_show, NULL);
|
|
static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
|
|
megasas_ldio_outstanding_show, NULL);
|
|
static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO,
|
|
megasas_fw_cmds_outstanding_show, NULL);
|
|
static DEVICE_ATTR(ldio_hint_count, S_IRUGO | S_IWUSR,
|
|
megasas_ldio_hint_count_show, megasas_ldio_hint_count_store);
|
|
static DEVICE_ATTR(enable_sdev_max_qd, S_IRUGO | S_IWUSR,
|
|
megasas_enable_sdev_max_qd_show, megasas_enable_sdev_max_qd_store);
|
|
static DEVICE_ATTR(dump_system_regs, S_IRUGO,
|
|
megasas_dump_system_regs_show, NULL);
|
|
static DEVICE_ATTR(raid_map_id, S_IRUGO,
|
|
megasas_raid_map_id_show, NULL);
|
|
|
|
|
|
static struct device_attribute *megaraid_host_attrs[] = {
|
|
&dev_attr_fw_crash_buffer_size,
|
|
&dev_attr_fw_crash_buffer,
|
|
&dev_attr_fw_crash_state,
|
|
&dev_attr_page_size,
|
|
&dev_attr_ldio_outstanding,
|
|
&dev_attr_fw_cmds_outstanding,
|
|
&dev_attr_ldio_hint_count,
|
|
&dev_attr_enable_sdev_max_qd,
|
|
&dev_attr_dump_system_regs,
|
|
&dev_attr_raid_map_id,
|
|
NULL,
|
|
};
|
|
|
|
/*
|
|
* Scsi host template for megaraid_sas driver
|
|
*/
|
|
static struct scsi_host_template megasas_template = {
|
|
|
|
.module = THIS_MODULE,
|
|
.name = "Broadcom 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_attrs = megaraid_host_attrs,
|
|
.bios_param = megasas_bios_param,
|
|
#if defined(HOST_TAGSET_SUPPORT)
|
|
.map_queues = megasas_map_queues,
|
|
#endif
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,12,0))
|
|
.mq_poll = megasas_blk_mq_poll,
|
|
#endif
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0))
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
#endif
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0))
|
|
.change_queue_depth = megasas_change_queue_depth,
|
|
#else
|
|
.change_queue_depth = scsi_change_queue_depth,
|
|
#endif
|
|
};
|
|
|
|
/**
|
|
* 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)
|
|
cmd->scmd->SCp.ptr = 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);
|
|
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);
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,14,0))
|
|
cmd->scmd->result |= DRIVER_SENSE << 24;
|
|
#endif
|
|
}
|
|
|
|
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);
|
|
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;
|
|
}
|
|
|
|
/* Below case is for Invader onwards controller.
|
|
* Driver will know VDs removed by firmware much earlier than
|
|
* waiting for events. It will allow driver to avoid sending IOs
|
|
* to the VDs which are removed.
|
|
*
|
|
* Without below check, there can be a small window
|
|
* possible where driver send IOs to the removed VD but FW might have
|
|
* reused same target id for other VD.
|
|
*/
|
|
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 ((mfiStatus = instance->instancet->check_reset(instance,
|
|
instance->reg_set)) == 1) {
|
|
return IRQ_HANDLED;
|
|
}
|
|
if ((mfiStatus = instance->instancet->clear_intr(instance)) == 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
|
|
*/
|
|
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
|
|
*
|
|
* 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_alloc(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;
|
|
}
|
|
memset(cmd->frame, 0, instance->mfi_frame_size);
|
|
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++;
|
|
}
|
|
|
|
memcpy(instance->pd_list, instance->local_pd_list,
|
|
sizeof(instance->pd_list));
|
|
break;
|
|
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_get_ld_list_info - Returns FW's ld_list structure
|
|
* @instance: Adapter soft state
|
|
* @ld_list: ld_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_ld_list(struct megasas_instance *instance)
|
|
{
|
|
int ret = 0, ld_index = 0, ids = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_LD_LIST *ci;
|
|
dma_addr_t ci_h = 0;
|
|
u32 ld_count;
|
|
|
|
ci = instance->ld_list_buf;
|
|
ci_h = instance->ld_list_buf_h;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_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);
|
|
|
|
if (instance->supportmax256vd)
|
|
dcmd->mbox.b[0] = 1;
|
|
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->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
|
|
dcmd->pad_0 = 0;
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h,
|
|
sizeof(struct MR_LD_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);
|
|
|
|
ld_count = le32_to_cpu(ci->ldCount);
|
|
|
|
switch (ret) {
|
|
case DCMD_FAILED:
|
|
megaraid_sas_kill_hba(instance);
|
|
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:
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
|
|
__func__, ld_count);
|
|
|
|
if (ld_count > instance->fw_supported_vd_count)
|
|
break;
|
|
|
|
memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
|
|
|
|
for (ld_index = 0; ld_index < ld_count; ld_index++) {
|
|
if (ci->ldList[ld_index].state != 0) {
|
|
ids = ci->ldList[ld_index].ref.targetId;
|
|
instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"LD%d: targetID: 0x%03x\n",
|
|
ld_index, ids);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_ld_list_query - Returns FW's ld_list structure
|
|
* @instance: Adapter soft state
|
|
* @ld_list: ld_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_ld_list_query(struct megasas_instance *instance, u8 query_type)
|
|
{
|
|
int ret = 0, ld_index = 0, ids = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_LD_TARGETID_LIST *ci;
|
|
dma_addr_t ci_h = 0;
|
|
u32 tgtid_count;
|
|
|
|
ci = instance->ld_targetid_list_buf;
|
|
ci_h = instance->ld_targetid_list_buf_h;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"megasas_ld_list_query: 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] = query_type;
|
|
if (instance->supportmax256vd)
|
|
dcmd->mbox.b[2] = 1;
|
|
|
|
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->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
|
|
dcmd->pad_0 = 0;
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h,
|
|
sizeof(struct MR_LD_TARGETID_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,
|
|
"DCMD not supported by firmware - %s %d\n",
|
|
__func__, __LINE__);
|
|
ret = megasas_get_ld_list(instance);
|
|
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:
|
|
tgtid_count = le32_to_cpu(ci->count);
|
|
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
|
|
__func__, tgtid_count);
|
|
|
|
if ((tgtid_count > (instance->fw_supported_vd_count)))
|
|
break;
|
|
|
|
memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
|
|
for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
|
|
ids = ci->targetId[ld_index];
|
|
instance->ld_ids[ids] = ci->targetId[ld_index];
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n",
|
|
ld_index, ci->targetId[ld_index]);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET
|
|
* dcmd.mbox - reserved
|
|
* dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure
|
|
* Desc: This DCMD will return the combined device list
|
|
* Status: MFI_STAT_OK - List returned successfully
|
|
* MFI_STAT_INVALID_CMD - Firmware support for the feature has been
|
|
* disabled
|
|
* @instance: Adapter soft state
|
|
* @is_probe: Driver probe check
|
|
* Return: 0 if DCMD succeeded
|
|
* non-zero if failed
|
|
*/
|
|
static int
|
|
megasas_host_device_list_query(struct megasas_instance *instance,
|
|
bool is_probe)
|
|
{
|
|
int ret, i, target_id;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_HOST_DEVICE_LIST *ci;
|
|
u32 count;
|
|
dma_addr_t ci_h;
|
|
|
|
ci = instance->host_device_list_buf;
|
|
ci_h = instance->host_device_list_buf_h;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"%s: failed to get cmd\n",
|
|
__func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(ci, 0, sizeof(*ci));
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->mbox.b[0] = is_probe ? 0 : 1;
|
|
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(HOST_DEVICE_LIST_SZ);
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ);
|
|
|
|
if (!instance->mask_interrupts) {
|
|
ret = megasas_issue_blocked_cmd(instance, cmd,
|
|
MFI_IO_TIMEOUT_SECS);
|
|
} else {
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
}
|
|
|
|
switch (ret) {
|
|
case DCMD_SUCCESS:
|
|
/* Fill the internal pd_list and ld_ids array based on
|
|
* targetIds returned by FW
|
|
*/
|
|
count = le32_to_cpu(ci->count);
|
|
|
|
if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT))
|
|
break;
|
|
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n",
|
|
__func__, count);
|
|
|
|
memset(instance->local_pd_list, 0,
|
|
MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
|
|
memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
|
|
for (i = 0; i < count; i++) {
|
|
target_id = le16_to_cpu(ci->host_device_list[i].target_id);
|
|
if (ci->host_device_list[i].flags.u.bits.is_sys_pd) {
|
|
instance->local_pd_list[target_id].tid = target_id;
|
|
instance->local_pd_list[target_id].driveType =
|
|
ci->host_device_list[i].scsi_type;
|
|
instance->local_pd_list[target_id].driveState =
|
|
MR_PD_STATE_SYSTEM;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"Device %d: PD targetID: 0x%03x deviceType:0x%x\n",
|
|
i, target_id, ci->host_device_list[i].scsi_type);
|
|
} else {
|
|
instance->ld_ids[target_id] = target_id;
|
|
if (megasas_dbg_lvl & LD_PD_DEBUG)
|
|
dev_info(&instance->pdev->dev,
|
|
"Device %d: LD targetID: 0x%03x\n",
|
|
i, target_id);
|
|
}
|
|
}
|
|
|
|
memcpy(instance->pd_list, instance->local_pd_list,
|
|
sizeof(instance->pd_list));
|
|
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;
|
|
case DCMD_FAILED:
|
|
dev_err(&instance->pdev->dev,
|
|
"%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n",
|
|
__func__);
|
|
break;
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_update_ext_vd_details : Update details w.r.t Extended VD
|
|
* instance : Controller's instance
|
|
*/
|
|
static void megasas_update_ext_vd_details(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
u32 ventura_map_sz = 0;
|
|
|
|
fusion = instance->ctrl_context;
|
|
/* For MFI based controllers return dummy success */
|
|
if (!fusion)
|
|
return;
|
|
|
|
instance->supportmax256vd =
|
|
instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
|
|
/* Below is additional check to address future FW enhancement */
|
|
if (instance->ctrl_info_buf->max_lds > 64)
|
|
instance->supportmax256vd = 1;
|
|
|
|
instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
|
|
* MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
|
|
* MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
if (instance->supportmax256vd) {
|
|
instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
|
|
instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
|
|
} else {
|
|
instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
|
|
instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"FW provided supportMaxExtLDs: %d\tmax_lds: %d\n",
|
|
instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0,
|
|
instance->ctrl_info_buf->max_lds);
|
|
|
|
if (instance->max_raid_mapsize) {
|
|
ventura_map_sz = instance->max_raid_mapsize *
|
|
MR_MIN_MAP_SIZE; /* 64k */
|
|
fusion->current_map_sz = ventura_map_sz;
|
|
fusion->max_map_sz = ventura_map_sz;
|
|
} else {
|
|
fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
|
|
(sizeof(struct MR_LD_SPAN_MAP) *
|
|
(instance->fw_supported_vd_count - 1));
|
|
fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
|
|
|
|
fusion->max_map_sz =
|
|
max(fusion->old_map_sz, fusion->new_map_sz);
|
|
|
|
if (instance->supportmax256vd)
|
|
fusion->current_map_sz = fusion->new_map_sz;
|
|
else
|
|
fusion->current_map_sz = fusion->old_map_sz;
|
|
}
|
|
/* irrespective of FW raid maps, driver raid map is constant */
|
|
fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
|
|
}
|
|
|
|
/**
|
|
* dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES
|
|
* dcmd.hdr.length - number of bytes to read
|
|
* dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES
|
|
* Desc: Fill in snapdump properties
|
|
* Status: MFI_STAT_OK- Command successful
|
|
*/
|
|
|
|
void megasas_get_snapdump_properties(struct megasas_instance *instance)
|
|
{
|
|
int ret = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct MR_SNAPDUMP_PROPERTIES *ci;
|
|
dma_addr_t ci_h = 0;
|
|
|
|
ci = instance->snapdump_prop;
|
|
ci_h = instance->snapdump_prop_h;
|
|
|
|
if (!ci)
|
|
return;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_err(&instance->pdev->dev, "Failed to get a free cmd"
|
|
"Fail from %s %d\n", __func__, __LINE__);
|
|
return;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(ci, 0, sizeof(*ci));
|
|
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 = MFI_FRAME_DIR_READ;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h,
|
|
sizeof(struct MR_SNAPDUMP_PROPERTIES));
|
|
|
|
if (!instance->mask_interrupts) {
|
|
ret = megasas_issue_blocked_cmd(instance, cmd,
|
|
MFI_IO_TIMEOUT_SECS);
|
|
} else {
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
}
|
|
|
|
switch (ret) {
|
|
case DCMD_SUCCESS:
|
|
instance->snapdump_wait_time =
|
|
min_t(u8, ci->trigger_min_num_sec_before_ocr,
|
|
MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);
|
|
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;
|
|
}
|
|
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
}
|
|
|
|
|
|
/**
|
|
* megasas_get_controller_info - Returns FW's controller structure
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Issues an internal command (DCMD) to get the FW's controller structure.
|
|
* This information is mainly used to find out the maximum IO transfer per
|
|
* command supported by the FW.
|
|
*/
|
|
int
|
|
megasas_get_ctrl_info(struct megasas_instance *instance)
|
|
{
|
|
int ret = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct megasas_ctrl_info *ci;
|
|
dma_addr_t ci_h = 0;
|
|
|
|
ci = instance->ctrl_info_buf;
|
|
ci_h = instance->ctrl_info_buf_h;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(ci, 0, sizeof(*ci));
|
|
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 = MFI_FRAME_DIR_READ;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
|
|
dcmd->mbox.b[0] = 1;
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h,
|
|
sizeof(struct megasas_ctrl_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);
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
}
|
|
|
|
switch (ret) {
|
|
case DCMD_SUCCESS:
|
|
/* Save required controller information in
|
|
* CPU endianness format.
|
|
*/
|
|
le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
|
|
le16_to_cpus((u16 *)&ci->properties.on_off_properties2);
|
|
le32_to_cpus((u32 *)&ci->adapterOperations2);
|
|
le32_to_cpus((u32 *)&ci->adapterOperations3);
|
|
le16_to_cpus((u16 *)&ci->adapter_operations4);
|
|
le32_to_cpus((u32 *)&ci->adapter_operations5);
|
|
|
|
/* Update the latest Ext VD info.
|
|
* From Init path, store current firmware details.
|
|
* From OCR path, detect any firmware properties changes.
|
|
* in case of Firmware upgrade without system reboot.
|
|
*/
|
|
megasas_update_ext_vd_details(instance);
|
|
instance->support_seqnum_jbod_fp =
|
|
ci->adapterOperations3.useSeqNumJbodFP;
|
|
instance->support_morethan256jbod =
|
|
ci->adapter_operations4.support_pd_map_target_id;
|
|
instance->support_nvme_passthru =
|
|
ci->adapter_operations4.support_nvme_passthru;
|
|
instance->support_pci_lane_margining =
|
|
ci->adapter_operations5.support_pci_lane_margining;
|
|
instance->task_abort_tmo = ci->TaskAbortTO;
|
|
instance->max_reset_tmo = ci->MaxResetTO;
|
|
|
|
/*Check whether controller is iMR or MR */
|
|
instance->is_imr = (ci->memory_size ? 0 : 1);
|
|
|
|
instance->snapdump_wait_time =
|
|
(ci->properties.on_off_properties2.enable_snap_dump ?
|
|
MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);
|
|
|
|
instance->enable_fw_dev_list =
|
|
ci->properties.on_off_properties2.enable_fw_dev_list;
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"controller type\t: %s(%dMB)\n",
|
|
instance->is_imr ? "iMR" : "MR",
|
|
le16_to_cpu(ci->memory_size));
|
|
|
|
instance->disableOnlineCtrlReset =
|
|
ci->properties.OnOffProperties.disableOnlineCtrlReset;
|
|
instance->secure_jbod_support =
|
|
ci->adapterOperations3.supportSecurityonJBOD;
|
|
dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
|
|
instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
|
|
dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
|
|
instance->secure_jbod_support ? "Yes" : "No");
|
|
dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
|
|
instance->support_nvme_passthru ? "Yes" : "No");
|
|
dev_info(&instance->pdev->dev,
|
|
"FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",
|
|
instance->task_abort_tmo, instance->max_reset_tmo);
|
|
dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n",
|
|
instance->support_pci_lane_margining ? "Yes" : "No");
|
|
dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n",
|
|
instance->support_seqnum_jbod_fp ? "Yes" : "No");
|
|
|
|
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;
|
|
case DCMD_FAILED:
|
|
megaraid_sas_kill_hba(instance);
|
|
break;
|
|
|
|
}
|
|
|
|
if (ret != DCMD_TIMEOUT)
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
|
|
* to firmware
|
|
*
|
|
* @instance: Adapter soft state
|
|
* @crash_buf_state - tell FW to turn ON/OFF crash dump feature
|
|
MR_CRASH_BUF_TURN_OFF = 0
|
|
MR_CRASH_BUF_TURN_ON = 1
|
|
* @return 0 on success non-zero on failure.
|
|
* Issues an internal command (DCMD) to set parameters for crash dump feature.
|
|
* Driver will send address of crash dump DMA buffer and set mbox to tell FW
|
|
* that driver supports crash dump feature. This DCMD will be sent only if
|
|
* crash dump feature is supported by the FW.
|
|
*
|
|
*/
|
|
int megasas_set_crash_dump_params(struct megasas_instance *instance,
|
|
u8 crash_buf_state)
|
|
{
|
|
int ret = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
dcmd->mbox.b[0] = crash_buf_state;
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = MFI_FRAME_DIR_NONE;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
|
|
CRASH_DMA_BUF_SIZE);
|
|
|
|
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);
|
|
|
|
if (ret == DCMD_TIMEOUT) {
|
|
switch (dcmd_timeout_ocr_possible(instance)) {
|
|
case INITIATE_OCR:
|
|
cmd->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
megasas_reset_fusion(instance->host,
|
|
MFI_IO_TIMEOUT_OCR);
|
|
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;
|
|
}
|
|
} else
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_init_mfi - Initializes the FW
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Issues the INIT MFI cmd
|
|
*/
|
|
static int
|
|
megasas_issue_init_mfi(struct megasas_instance *instance)
|
|
{
|
|
__le32 context;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_init_frame *init_frame;
|
|
struct megasas_init_queue_info *initq_info;
|
|
dma_addr_t init_frame_h;
|
|
dma_addr_t initq_info_h;
|
|
|
|
/*
|
|
* Prepare a init frame. Note the init frame points to queue info
|
|
* structure. Each frame has SGL allocated after first 64 bytes. For
|
|
* this frame - since we don't need any SGL - we use SGL's space as
|
|
* queue info structure
|
|
*
|
|
* We will not get a NULL command below. We just created the pool.
|
|
*/
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
init_frame = (struct megasas_init_frame *)cmd->frame;
|
|
initq_info = (struct megasas_init_queue_info *)
|
|
((unsigned long)init_frame + 64);
|
|
|
|
init_frame_h = cmd->frame_phys_addr;
|
|
initq_info_h = init_frame_h + 64;
|
|
|
|
context = init_frame->context;
|
|
memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
|
|
memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
|
|
init_frame->context = context;
|
|
|
|
initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
|
|
initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
|
|
|
|
initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
|
|
initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
|
|
|
|
init_frame->cmd = MFI_CMD_INIT;
|
|
init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
|
|
|
|
if (instance->verbuf) {
|
|
snprintf((char *)instance->verbuf, strlen(MEGASAS_VERSION) + 2,
|
|
"%s", MEGASAS_VERSION);
|
|
|
|
if (reset_devices)
|
|
strcat((char *)instance->verbuf, "-kdump");
|
|
|
|
init_frame->driver_ver_lo = cpu_to_le32(instance->verbuf_h);
|
|
init_frame->driver_ver_hi = 0;
|
|
}
|
|
|
|
init_frame->queue_info_new_phys_addr_lo =
|
|
cpu_to_le32(lower_32_bits(initq_info_h));
|
|
init_frame->queue_info_new_phys_addr_hi =
|
|
cpu_to_le32(upper_32_bits(initq_info_h));
|
|
|
|
init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
|
|
|
|
/*
|
|
* disable the intr before firing the init frame to FW
|
|
*/
|
|
instance->instancet->disable_intr(instance);
|
|
|
|
/*
|
|
* Issue the init frame in polled mode
|
|
*/
|
|
|
|
if (megasas_issue_polled(instance, cmd)) {
|
|
dev_err(&instance->pdev->dev, "Failed to init firmware\n");
|
|
megasas_return_cmd(instance, cmd);
|
|
goto fail_fw_init;
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return 0;
|
|
|
|
fail_fw_init:
|
|
return -EINVAL;
|
|
}
|
|
|
|
static u32
|
|
megasas_init_adapter_mfi(struct megasas_instance *instance)
|
|
{
|
|
u32 context_sz;
|
|
u32 reply_q_sz;
|
|
|
|
/*
|
|
* Get various operational parameters from status register
|
|
*/
|
|
instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF;
|
|
/*
|
|
* Reduce the max supported cmds by 1. This is to ensure that the
|
|
* reply_q_sz (1 more than the max cmd that driver may send)
|
|
* does not exceed max cmds that the FW can support
|
|
*/
|
|
instance->max_fw_cmds = instance->max_fw_cmds-1;
|
|
instance->max_mfi_cmds = instance->max_fw_cmds;
|
|
instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >>
|
|
0x10;
|
|
/*
|
|
* For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
|
|
* are reserved for IOCTL + driver's internal DCMDs.
|
|
*/
|
|
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
|
|
instance->max_scsi_cmds = (instance->max_fw_cmds -
|
|
MEGASAS_SKINNY_INT_CMDS);
|
|
sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
|
|
} else {
|
|
instance->max_scsi_cmds = (instance->max_fw_cmds -
|
|
MEGASAS_INT_CMDS);
|
|
sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
|
|
}
|
|
|
|
instance->cur_can_queue = instance->max_scsi_cmds;
|
|
/*
|
|
* Create a pool of commands
|
|
*/
|
|
if (megasas_alloc_cmds(instance))
|
|
goto fail_alloc_cmds;
|
|
|
|
/*
|
|
* Allocate memory for reply queue. Length of reply queue should
|
|
* be _one_ more than the maximum commands handled by the firmware.
|
|
*
|
|
* Note: When FW completes commands, it places corresponding contex
|
|
* values in this circular reply queue. This circular queue is a fairly
|
|
* typical producer-consumer queue. FW is the producer (of completed
|
|
* commands) and the driver is the consumer.
|
|
*/
|
|
context_sz = sizeof(u32);
|
|
reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
|
|
|
|
instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev,
|
|
reply_q_sz, &instance->reply_queue_h, GFP_KERNEL);
|
|
|
|
if (!instance->reply_queue) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
|
|
goto fail_reply_queue;
|
|
}
|
|
|
|
if (megasas_issue_init_mfi(instance))
|
|
goto fail_fw_init;
|
|
|
|
if (megasas_get_ctrl_info(instance)) {
|
|
dev_err(&instance->pdev->dev, "(%d): Could get controller info "
|
|
"Fail from %s %d\n", instance->unique_id,
|
|
__func__, __LINE__);
|
|
goto fail_fw_init;
|
|
}
|
|
|
|
instance->fw_support_ieee = 0;
|
|
instance->fw_support_ieee =
|
|
(instance->instancet->read_fw_status_reg(instance) &
|
|
0x04000000);
|
|
|
|
dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
|
|
instance->fw_support_ieee);
|
|
|
|
if (instance->fw_support_ieee)
|
|
instance->flag_ieee = 1;
|
|
|
|
return 0;
|
|
|
|
fail_fw_init:
|
|
|
|
dma_free_coherent(&instance->pdev->dev, reply_q_sz,
|
|
instance->reply_queue, instance->reply_queue_h);
|
|
fail_reply_queue:
|
|
megasas_free_cmds(instance);
|
|
|
|
fail_alloc_cmds:
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* megasas_get_irq - Return IRQ vector associated with MSI-x index
|
|
* @instance: Adapter soft state
|
|
* @msix_index: MSI-x index
|
|
*
|
|
* Return IRQ vector associated with passed MSI-x index.
|
|
*/
|
|
inline unsigned int
|
|
megasas_get_irq(struct megasas_instance *instance, int msix_index)
|
|
{
|
|
|
|
unsigned int irq;
|
|
#ifndef USE_MANAGED_IRQ_API
|
|
if (instance->msix_vectors)
|
|
irq = instance->msixentry[msix_index].vector;
|
|
else
|
|
irq = instance->pdev->irq;
|
|
#else
|
|
irq = pci_irq_vector(instance->pdev, msix_index);
|
|
#endif
|
|
return irq;
|
|
|
|
}
|
|
|
|
/**
|
|
* megasas_irq_set_affinity_hint - Set IRQ affinity hint for relevant kernels
|
|
* @msix_vector: MSI-x vector to which IRQ affinity hint
|
|
* is provided
|
|
* @mask: CPU mask
|
|
* return: true: irq_set_affinity_hint successful
|
|
* false: irq_set_affinity_hint failed
|
|
*/
|
|
static inline bool
|
|
megasas_irq_set_affinity_hint(struct megasas_instance *instance,
|
|
unsigned int msix_vector,
|
|
const struct cpumask *mask)
|
|
{
|
|
if (instance->smp_affinity_enable) {
|
|
if (irq_set_affinity_hint(msix_vector, mask))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#if defined(ENABLE_IRQ_POLL)
|
|
static
|
|
void megasas_setup_irq_poll(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_irq_context *irq_ctx;
|
|
u32 count, i;
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
|
|
/* Initialize IRQ poll */
|
|
for (i = 0; i < count; i++) {
|
|
irq_ctx = &instance->irq_context[i];
|
|
irq_ctx->os_irq = megasas_get_irq(instance, i);
|
|
irq_ctx->irq_poll_scheduled = false;
|
|
irq_poll_init(&irq_ctx->irqpoll,
|
|
instance->threshold_reply_count,
|
|
megasas_irqpoll);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* megasas_setup_irqs_ioapic - register legacy interrupts.
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Do not enable interrupt, only setup ISRs.
|
|
*
|
|
* Return 0 on success.
|
|
*/
|
|
static int
|
|
megasas_setup_irqs_ioapic(struct megasas_instance *instance)
|
|
{
|
|
struct pci_dev *pdev;
|
|
|
|
pdev = instance->pdev;
|
|
instance->irq_context[0].instance = instance;
|
|
instance->irq_context[0].MSIxIndex = 0;
|
|
atomic_set(&instance->irq_context[0].in_use, 0);
|
|
snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u",
|
|
"megasas", instance->host->host_no);
|
|
if (request_irq(megasas_get_irq(instance, 0),
|
|
instance->instancet->service_isr, IRQF_SHARED,
|
|
instance->irq_context->name, &instance->irq_context[0])) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to register IRQ from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -1;
|
|
}
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
instance->low_latency_index_start = 0;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_setup_reply_map: Create mapping table of CPU-reply queue map
|
|
* @instance: Adapter soft state
|
|
* return: void
|
|
*/
|
|
static void megasas_setup_reply_map(struct megasas_instance *instance)
|
|
{
|
|
unsigned int queue, cpu, low_latency_index_start;
|
|
const struct cpumask *mask;
|
|
|
|
low_latency_index_start = instance->low_latency_index_start;
|
|
#ifndef USE_MANAGED_IRQ_API
|
|
/* Set affinity for all low latency queues*/
|
|
cpu = cpumask_first(cpu_online_mask);
|
|
for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) {
|
|
mask = get_cpu_mask(cpu);
|
|
if (!megasas_irq_set_affinity_hint(instance,
|
|
megasas_get_irq(instance, queue),
|
|
mask))
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to set affinity hint for cpu %d\n",
|
|
cpu);
|
|
|
|
cpu = cpumask_next(cpu, cpu_online_mask);
|
|
}
|
|
|
|
/* Setup CPU to reply queues mapping for all low latency queues */
|
|
queue = low_latency_index_start;
|
|
for_each_online_cpu(cpu) {
|
|
instance->reply_map[cpu] = queue;
|
|
if (queue == (instance->msix_vectors - 1))
|
|
queue = low_latency_index_start;
|
|
else
|
|
queue++;
|
|
}
|
|
|
|
#else
|
|
for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) {
|
|
mask = pci_irq_get_affinity(instance->pdev, queue);
|
|
if (!mask)
|
|
goto fallback;
|
|
|
|
for_each_cpu(cpu, mask)
|
|
instance->reply_map[cpu] = queue;
|
|
}
|
|
return;
|
|
|
|
fallback:
|
|
queue = low_latency_index_start;
|
|
for_each_possible_cpu(cpu) {
|
|
instance->reply_map[cpu] = queue;
|
|
if (queue == (instance->msix_vectors - 1))
|
|
queue = low_latency_index_start;
|
|
else
|
|
queue++;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* megasas_setup_irqs_msix - register MSI-x interrupts.
|
|
* @instance: Adapter soft state
|
|
* @is_probe: Driver probe check
|
|
*
|
|
* Do not enable interrupt, only setup ISRs.
|
|
*
|
|
* Return 0 on success.
|
|
*/
|
|
static int
|
|
megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
|
|
{
|
|
int i, j;
|
|
struct pci_dev *pdev;
|
|
|
|
pdev = instance->pdev;
|
|
|
|
/* Try MSI-x */
|
|
for (i = 0; i < instance->msix_vectors; i++) {
|
|
instance->irq_context[i].instance = instance;
|
|
instance->irq_context[i].MSIxIndex = i;
|
|
atomic_set(&instance->irq_context[i].in_use, 0);
|
|
snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%d",
|
|
"megasas", instance->host->host_no, i);
|
|
if (request_irq(megasas_get_irq(instance, i),
|
|
instance->instancet->service_isr, 0, instance->irq_context[i].name,
|
|
&instance->irq_context[i])) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to register IRQ for vector %d.\n", i);
|
|
for (j = 0; j < i; j++)
|
|
free_irq(megasas_get_irq(instance, j),
|
|
&instance->irq_context[j]);
|
|
/* Retry irq register for IO_APIC*/
|
|
instance->msix_vectors = 0;
|
|
instance->msix_load_balance = false;
|
|
if (is_probe) {
|
|
megasas_free_irq_vectors(instance);
|
|
return megasas_setup_irqs_ioapic(instance);
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
megasas_setup_reply_map(instance);
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
* megasas_destroy_irqs- unregister interrupts.
|
|
* @instance: Adapter soft state
|
|
* return: void
|
|
*/
|
|
static void
|
|
megasas_destroy_irqs(struct megasas_instance *instance) {
|
|
|
|
int i;
|
|
#if defined(ENABLE_IRQ_POLL)
|
|
int count;
|
|
struct megasas_irq_context *irq_ctx;
|
|
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
for (i = 0; i < count; i++) {
|
|
irq_ctx = &instance->irq_context[i];
|
|
irq_poll_disable(&irq_ctx->irqpoll);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (instance->msix_vectors) {
|
|
for (i = 0; i < instance->msix_vectors; i++) {
|
|
if (i >= instance->low_latency_index_start)
|
|
megasas_irq_set_affinity_hint(instance,
|
|
megasas_get_irq(instance, i),
|
|
NULL);
|
|
free_irq(megasas_get_irq(instance, i),
|
|
&instance->irq_context[i]);
|
|
}
|
|
} else {
|
|
free_irq(megasas_get_irq(instance, 0), &instance->irq_context[0]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_setup_jbod_map - setup jbod map for FP seq_number.
|
|
* @instance: Adapter soft state
|
|
* @is_probe: Driver probe check
|
|
*
|
|
* Return 0 on success.
|
|
*/
|
|
void
|
|
megasas_setup_jbod_map(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
u32 pd_seq_map_sz;
|
|
|
|
pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
|
|
(sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
|
|
|
|
instance->use_seqnum_jbod_fp =
|
|
instance->support_seqnum_jbod_fp;
|
|
if (reset_devices || !fusion ||
|
|
!instance->support_seqnum_jbod_fp) {
|
|
dev_info(&instance->pdev->dev,
|
|
"JBOD sequence map is disabled %s %d\n",
|
|
__func__, __LINE__);
|
|
instance->use_seqnum_jbod_fp = false;
|
|
return;
|
|
}
|
|
|
|
if (fusion->pd_seq_sync[0])
|
|
goto skip_alloc;
|
|
|
|
for (i = 0; i < JBOD_MAPS_COUNT; i++) {
|
|
fusion->pd_seq_sync[i] = dma_alloc_coherent
|
|
(&instance->pdev->dev, pd_seq_map_sz,
|
|
&fusion->pd_seq_phys[i], GFP_KERNEL);
|
|
if (!fusion->pd_seq_sync[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate memory from %s %d\n",
|
|
__func__, __LINE__);
|
|
if (i == 1) {
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
pd_seq_map_sz, fusion->pd_seq_sync[0],
|
|
fusion->pd_seq_phys[0]);
|
|
fusion->pd_seq_sync[0] = NULL;
|
|
}
|
|
instance->use_seqnum_jbod_fp = false;
|
|
return;
|
|
}
|
|
}
|
|
|
|
skip_alloc:
|
|
if (!megasas_sync_pd_seq_num(instance, false) &&
|
|
!megasas_sync_pd_seq_num(instance, true))
|
|
instance->use_seqnum_jbod_fp = true;
|
|
else
|
|
instance->use_seqnum_jbod_fp = false;
|
|
}
|
|
|
|
#if defined(USE_MANAGED_IRQ_API)
|
|
/**
|
|
* megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPs queues
|
|
* @instance: Adapter soft state
|
|
* return: void
|
|
*/
|
|
static inline void
|
|
megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
int local_numa_node;
|
|
|
|
if (instance->perf_mode == MR_BALANCED_PERF_MODE) {
|
|
local_numa_node = dev_to_node(&instance->pdev->dev);
|
|
|
|
for (i = 0; i < instance->low_latency_index_start; i++)
|
|
megasas_irq_set_affinity_hint(instance,
|
|
megasas_get_irq(instance, i),
|
|
cpumask_of_node(local_numa_node));
|
|
}
|
|
}
|
|
|
|
static int
|
|
__megasas_alloc_irq_vectors(struct megasas_instance *instance)
|
|
{
|
|
int i, irq_flags;
|
|
struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start };
|
|
struct irq_affinity *descp = &desc;
|
|
|
|
irq_flags = PCI_IRQ_MSIX;
|
|
|
|
if (instance->smp_affinity_enable)
|
|
irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES;
|
|
else
|
|
descp = NULL;
|
|
|
|
/* Do not allocate msix vectors for poll_queues.
|
|
* msix_vectors is always within a range of FW supported reply queue.
|
|
*/
|
|
i = pci_alloc_irq_vectors_affinity(instance->pdev,
|
|
instance->low_latency_index_start,
|
|
instance->msix_vectors - instance->iopoll_q_count, irq_flags, descp);
|
|
|
|
return i;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors
|
|
* @instance: Adapter soft state
|
|
* return: void
|
|
*/
|
|
static void
|
|
megasas_alloc_irq_vectors(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
#if defined(USE_MANAGED_IRQ_API)
|
|
unsigned int num_msix_req;
|
|
instance->iopoll_q_count = 0;
|
|
|
|
if ((instance->adapter_type != MFI_SERIES) &&
|
|
poll_queues) {
|
|
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
instance->low_latency_index_start = 1;
|
|
|
|
/* reserve for default and non-mananged pre-vector. */
|
|
if (instance->msix_vectors > (poll_queues + 2))
|
|
instance->iopoll_q_count = poll_queues;
|
|
else
|
|
instance->iopoll_q_count = 0;
|
|
|
|
num_msix_req = num_online_cpus() + instance->low_latency_index_start;
|
|
instance->msix_vectors = min(num_msix_req,
|
|
instance->msix_vectors);
|
|
|
|
}
|
|
|
|
i = __megasas_alloc_irq_vectors(instance);
|
|
|
|
if (((instance->perf_mode == MR_BALANCED_PERF_MODE)
|
|
|| instance->iopoll_q_count) &&
|
|
(i != (instance->msix_vectors - instance->iopoll_q_count))) {
|
|
if (instance->msix_vectors)
|
|
pci_free_irq_vectors(instance->pdev);
|
|
/* Disable Balanced IOPS mode and try realloc vectors */
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
instance->low_latency_index_start = 1;
|
|
num_msix_req = num_online_cpus() + instance->low_latency_index_start;
|
|
|
|
instance->msix_vectors = min(num_msix_req,
|
|
instance->msix_vectors);
|
|
|
|
instance->iopoll_q_count = 0;
|
|
i = __megasas_alloc_irq_vectors(instance);
|
|
|
|
}
|
|
|
|
if (instance->smp_affinity_enable)
|
|
megasas_set_high_iops_queue_affinity_hint(instance);
|
|
|
|
#else
|
|
for (i = 0; i < instance->msix_vectors; i++)
|
|
instance->msixentry[i].entry = i;
|
|
|
|
i = pci_enable_msix_range(instance->pdev, instance->msixentry,
|
|
1, instance->msix_vectors);
|
|
|
|
if (i != instance->msix_vectors) {
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
instance->low_latency_index_start = 1;
|
|
}
|
|
|
|
#endif
|
|
dev_info(&instance->pdev->dev,
|
|
"requested/available msix: %d/%d\n",
|
|
instance->msix_vectors - instance->iopoll_q_count,
|
|
i);
|
|
|
|
if (i > 0)
|
|
instance->msix_vectors = i;
|
|
else
|
|
instance->msix_vectors = 0;
|
|
|
|
}
|
|
|
|
/**
|
|
* megasas_free_irq_vectors - Freeup IRQ vectors/disable MSI-x vectors
|
|
* @instance: Adapter soft state
|
|
*/
|
|
void megasas_free_irq_vectors(struct megasas_instance *instance)
|
|
{
|
|
if (instance->msix_vectors)
|
|
#ifndef USE_MANAGED_IRQ_API
|
|
pci_disable_msix(instance->pdev);
|
|
#else
|
|
pci_free_irq_vectors(instance->pdev);
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* megasas_get_device_list - Get the PD and LD device list from FW.
|
|
* @instance: Adapter soft state
|
|
* @return: Success or failure
|
|
*
|
|
* Issue DCMDs to Firmware to get the PD and LD list.
|
|
* Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
|
|
* of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
|
|
*/
|
|
static
|
|
int megasas_get_device_list(struct megasas_instance *instance)
|
|
{
|
|
memset(instance->pd_list, 0,
|
|
(MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
|
|
memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
|
|
|
|
if (instance->enable_fw_dev_list) {
|
|
if (megasas_host_device_list_query(instance, true)) {
|
|
dev_err(&instance->pdev->dev, "failed to get host device list\n");
|
|
return FAILED;
|
|
}
|
|
} else {
|
|
if (megasas_get_pd_list(instance) < 0) {
|
|
dev_err(&instance->pdev->dev, "failed to get PD list\n");
|
|
return FAILED;
|
|
}
|
|
|
|
if (megasas_ld_list_query(instance,
|
|
MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) {
|
|
dev_err(&instance->pdev->dev, "failed to get LD list\n");
|
|
return FAILED;
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* megasas_init_fw - Initializes the FW
|
|
* @instance: Adapter soft state
|
|
*
|
|
* This is the main function for initializing firmware
|
|
*/
|
|
|
|
static int megasas_init_fw(struct megasas_instance *instance)
|
|
{
|
|
u32 max_sectors_1;
|
|
u32 max_sectors_2, tmp_sectors, msix_enable, num_msix_req;
|
|
u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;
|
|
resource_size_t base_addr;
|
|
void *base_addr_phys;
|
|
struct megasas_ctrl_info *ctrl_info = NULL;
|
|
unsigned long bar_list;
|
|
int i, j, loop;
|
|
struct IOV_111 *iovPtr;
|
|
struct fusion_context *fusion;
|
|
bool intr_coalescing;
|
|
u16 lnksta, speed;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
/* Find first memory bar */
|
|
bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
|
|
instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
|
|
if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
|
|
"megasas: LSI")) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
base_addr = pci_resource_start(instance->pdev, instance->bar);
|
|
instance->reg_set = ioremap(base_addr, 8192);
|
|
|
|
base_addr_phys = &base_addr;
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev,
|
|
"BAR:0x%lx BAR's base_addr(phys):0x%pa mapped virt_addr:0x%p\n",
|
|
instance->bar, base_addr_phys, instance->reg_set);
|
|
|
|
if (!instance->reg_set) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
|
|
goto fail_ioremap;
|
|
}
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
instance->instancet = &megasas_instance_template_fusion;
|
|
else {
|
|
switch (instance->pdev->device) {
|
|
case PCI_DEVICE_ID_LSI_SAS1078R:
|
|
case PCI_DEVICE_ID_LSI_SAS1078DE:
|
|
instance->instancet = &megasas_instance_template_ppc;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_SAS1078GEN2:
|
|
case PCI_DEVICE_ID_LSI_SAS0079GEN2:
|
|
instance->instancet = &megasas_instance_template_gen2;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
|
|
case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
|
|
instance->instancet = &megasas_instance_template_skinny;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_SAS1064R:
|
|
case PCI_DEVICE_ID_DELL_PERC5:
|
|
default:
|
|
instance->instancet = &megasas_instance_template_xscale;
|
|
instance->pd_list_not_supported = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (megasas_transition_to_ready(instance, 0)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"Failed to transition controller to ready from %s!\n",
|
|
__func__);
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
status_reg = instance->instancet->read_fw_status_reg(
|
|
instance);
|
|
if (status_reg & MFI_RESET_ADAPTER) {
|
|
if (megasas_adp_reset_wait_for_ready
|
|
(instance, true, 0) == FAILED)
|
|
goto fail_ready_state;
|
|
} else {
|
|
goto fail_ready_state;
|
|
}
|
|
} else {
|
|
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);
|
|
|
|
/*waiting for about 30 second before retry*/
|
|
ssleep(30);
|
|
|
|
if (megasas_transition_to_ready(instance, 0))
|
|
goto fail_ready_state;
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"FW restarted successfully from %s!\n",
|
|
__func__);
|
|
}
|
|
|
|
megasas_init_ctrl_params(instance);
|
|
|
|
if (megasas_set_dma_mask(instance))
|
|
goto fail_ready_state;
|
|
|
|
if (megasas_alloc_ctrl_mem(instance))
|
|
goto fail_alloc_dma_buf;
|
|
|
|
if (megasas_alloc_ctrl_dma_buffers(instance))
|
|
goto fail_alloc_dma_buf;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (instance->adapter_type >= VENTURA_SERIES) {
|
|
scratch_pad_2 =
|
|
megasas_readl(instance,
|
|
&instance->reg_set->outbound_scratch_pad_2);
|
|
instance->max_raid_mapsize = ((scratch_pad_2 >>
|
|
MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
|
|
MR_MAX_RAID_MAP_SIZE_MASK);
|
|
|
|
}
|
|
|
|
instance->enable_sdev_max_qd = enable_sdev_max_qd;
|
|
|
|
switch (instance->adapter_type) {
|
|
case VENTURA_SERIES:
|
|
fusion->pcie_bw_limitation = true;
|
|
break;
|
|
case AERO_SERIES:
|
|
fusion->r56_div_offload = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Check if MSI-X is supported while in ready state */
|
|
msix_enable = (instance->instancet->read_fw_status_reg(instance) &
|
|
0x4000000) >> 0x1a;
|
|
if (msix_enable && !msix_disable) {
|
|
scratch_pad_1 = megasas_readl
|
|
(instance, &instance->reg_set->outbound_scratch_pad_1);
|
|
/* Check max MSI-X vectors */
|
|
if (fusion) {
|
|
if (instance->adapter_type == THUNDERBOLT_SERIES) {
|
|
/* Thunderbolt Series*/
|
|
instance->msix_vectors = (scratch_pad_1
|
|
& MR_MAX_REPLY_QUEUES_OFFSET) + 1;
|
|
} else {
|
|
instance->msix_vectors = ((scratch_pad_1
|
|
& MR_MAX_REPLY_QUEUES_EXT_OFFSET)
|
|
>> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
|
|
|
|
/*
|
|
* For Invader series, > 8 MSI-x vectors supported by FW/HW implies
|
|
* combined reply queue mode is enabled.
|
|
* For Ventura series, > 16 MSI-x vectors supported by FW/HW implies
|
|
* combined reply queue mode is enabled.
|
|
*/
|
|
switch (instance->adapter_type) {
|
|
case INVADER_SERIES:
|
|
if (instance->msix_vectors > 8)
|
|
instance->msix_combined = true;
|
|
break;
|
|
case AERO_SERIES:
|
|
case VENTURA_SERIES:
|
|
if (instance->msix_vectors > 16)
|
|
instance->msix_combined = true;
|
|
break;
|
|
}
|
|
|
|
if (rdpq_enable)
|
|
instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?
|
|
1 : 0;
|
|
/* Save 1-15 reply post index address to local memory
|
|
* Index 0 is already saved from reg offset
|
|
* MPI2_REPLY_POST_HOST_INDEX_OFFSET
|
|
*/
|
|
for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
|
|
instance->reply_post_host_index_addr[loop] =
|
|
(u32 __iomem *)
|
|
((u8 __iomem *)instance->reg_set +
|
|
MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
|
|
+ (loop * 0x10));
|
|
}
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"firmware supports msix\t: (%d)",
|
|
instance->msix_vectors);
|
|
|
|
if (msix_vectors)
|
|
instance->msix_vectors = min(msix_vectors,
|
|
instance->msix_vectors);
|
|
|
|
|
|
} else /* MFI adapters */
|
|
instance->msix_vectors = 1;
|
|
|
|
intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ?
|
|
true : false;
|
|
|
|
/*
|
|
* For Aero (if some conditions are met), driver will configure a
|
|
* few additional reply queues with interrupt coalescing enabled.
|
|
* These queues with interrupt coalescing enabled are called
|
|
* High IOPS queues and rest of reply queues (based on number of
|
|
* logical CPUs) are termed as Low latency queues.
|
|
*
|
|
* Total Number of reply queues = High IOPS queues + low latency queues
|
|
*
|
|
* For rest of fusion adapters, 1 additional reply queue will be
|
|
* reserved for management commands, rest of reply queues
|
|
* (based on number of logical CPUs) will be used for IOs and
|
|
* referenced as IO queues.
|
|
* Total Number of reply queues = 1 + IO queues
|
|
*
|
|
* MFI adapters supports single MSI-x so single reply queue
|
|
* will be used for IO and management commands.
|
|
*/
|
|
|
|
if (intr_coalescing &&
|
|
(num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&
|
|
(instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))
|
|
instance->perf_mode = MR_BALANCED_PERF_MODE;
|
|
else
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
|
|
|
|
if (instance->adapter_type == AERO_SERIES) {
|
|
pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta);
|
|
speed = lnksta & PCI_EXP_LNKSTA_CLS;
|
|
|
|
/*
|
|
* For Aero, if PCIe link speed is <16 GT/s, then driver should operate
|
|
* in latency perf mode and enable R1 PCI bandwidth algorithm
|
|
*/
|
|
if (speed < 0x4) {
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
fusion->pcie_bw_limitation = true;
|
|
}
|
|
|
|
/*
|
|
* Performance mode settings provided through module parameter-perf_mode will
|
|
* take affect only for:
|
|
* 1. Aero family of adapters.
|
|
* 2. When user sets module parameter- perf_mode in range of 0-2.
|
|
*/
|
|
if ((perf_mode >= MR_BALANCED_PERF_MODE) &&
|
|
(perf_mode <= MR_LATENCY_PERF_MODE))
|
|
instance->perf_mode = perf_mode;
|
|
/*
|
|
* If intr coalescing is not supported by controller FW, then IOPs
|
|
* and Balanced modes are not feasible.
|
|
*/
|
|
if (!intr_coalescing)
|
|
instance->perf_mode = MR_LATENCY_PERF_MODE;
|
|
|
|
}
|
|
|
|
if (instance->perf_mode == MR_BALANCED_PERF_MODE)
|
|
instance->low_latency_index_start =
|
|
MR_HIGH_IOPS_QUEUE_COUNT;
|
|
else
|
|
instance->low_latency_index_start = 1;
|
|
|
|
num_msix_req = num_online_cpus() + instance->low_latency_index_start;
|
|
|
|
instance->msix_vectors = min(num_msix_req,
|
|
instance->msix_vectors);
|
|
|
|
/*
|
|
* Disable SMP affinity if number of logical CPUs exceeds number of
|
|
* MSI-x vectors configured
|
|
*/
|
|
if (!instance->msix_combined) {
|
|
instance->msix_load_balance = true;
|
|
instance->smp_affinity_enable = false;
|
|
}
|
|
|
|
megasas_alloc_irq_vectors(instance);
|
|
if (!instance->msix_vectors)
|
|
instance->msix_load_balance = false;
|
|
}
|
|
/*
|
|
* MSI-X host index 0 is common for all adapter.
|
|
* It is used for all MPT based Adapters.
|
|
*/
|
|
if (instance->msix_combined) {
|
|
instance->reply_post_host_index_addr[0] =
|
|
(u32 *)((u8 *)instance->reg_set +
|
|
MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
|
|
} else {
|
|
instance->reply_post_host_index_addr[0] =
|
|
(u32 *)((u8 *)instance->reg_set +
|
|
MPI2_REPLY_POST_HOST_INDEX_OFFSET);
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0))
|
|
if (!instance->msix_vectors) {
|
|
i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
|
|
if (i < 0)
|
|
goto fail_init_adapter;
|
|
}
|
|
#endif
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"current msix/online cpus\t: (%d/%d)\n",
|
|
instance->msix_vectors, (unsigned int)num_online_cpus());
|
|
dev_info(&instance->pdev->dev,
|
|
"RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
|
|
|
|
tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
|
|
(unsigned long)instance);
|
|
|
|
/*
|
|
* Below are default value for legacy Firmware.
|
|
* non-fusion based controllers
|
|
*/
|
|
instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
|
|
instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
|
|
/* Get operational params, sge flags, send init cmd to controller */
|
|
if (instance->instancet->init_adapter(instance))
|
|
goto fail_init_adapter;
|
|
|
|
if (instance->adapter_type >= VENTURA_SERIES) {
|
|
scratch_pad_3 =
|
|
megasas_readl(instance,
|
|
&instance->reg_set->outbound_scratch_pad_3);
|
|
if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >=
|
|
MR_DEFAULT_NVME_PAGE_SHIFT)
|
|
instance->nvme_page_size =
|
|
(1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK));
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"NVME page size\t: (%d)\n", instance->nvme_page_size);
|
|
}
|
|
|
|
if (instance->msix_vectors ?
|
|
megasas_setup_irqs_msix(instance, 1) :
|
|
megasas_setup_irqs_ioapic(instance))
|
|
goto fail_init_adapter;
|
|
|
|
#if defined(ENABLE_IRQ_POLL)
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_setup_irq_poll(instance);
|
|
#endif
|
|
instance->instancet->enable_intr(instance);
|
|
|
|
dev_info(&instance->pdev->dev, "INIT adapter done\n");
|
|
|
|
megasas_setup_jbod_map(instance);
|
|
|
|
if (megasas_get_device_list(instance) != SUCCESS) {
|
|
dev_err(&instance->pdev->dev,
|
|
"%s: megasas_get_device_list failed\n",
|
|
__func__);
|
|
goto fail_get_ld_pd_list;
|
|
}
|
|
|
|
/* stream detection initialization */
|
|
if (instance->adapter_type >= VENTURA_SERIES) {
|
|
fusion->stream_detect_by_ld =
|
|
kcalloc(MAX_LOGICAL_DRIVES_EXT,
|
|
sizeof(struct LD_STREAM_DETECT *),
|
|
GFP_KERNEL);
|
|
if (!fusion->stream_detect_by_ld) {
|
|
dev_err(&instance->pdev->dev,
|
|
"unable to allocate stream detection for pool of LDs\n");
|
|
goto fail_get_ld_pd_list;
|
|
}
|
|
for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
|
|
fusion->stream_detect_by_ld[i] =
|
|
kzalloc(sizeof(struct LD_STREAM_DETECT),
|
|
GFP_KERNEL);
|
|
if (!fusion->stream_detect_by_ld[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"unable to allocate stream detect by LD\n ");
|
|
for (j = 0; j < i; ++j)
|
|
kfree(fusion->stream_detect_by_ld[j]);
|
|
kfree(fusion->stream_detect_by_ld);
|
|
fusion->stream_detect_by_ld = NULL;
|
|
goto fail_get_ld_pd_list;
|
|
}
|
|
fusion->stream_detect_by_ld[i]->mru_bit_map
|
|
= MR_STREAM_BITMAP;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Compute the max allowed sectors per IO: The controller info has two
|
|
* limits on max sectors. Driver should use the minimum of these two.
|
|
*
|
|
* 1 << stripe_sz_ops.min = max sectors per strip
|
|
*
|
|
* Note that older firmwares ( < FW ver 30) didn't report information
|
|
* to calculate max_sectors_1. So the number ended up as zero always.
|
|
*/
|
|
tmp_sectors = 0;
|
|
ctrl_info = instance->ctrl_info_buf;
|
|
|
|
max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
|
|
le16_to_cpu(ctrl_info->max_strips_per_io);
|
|
max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
|
|
|
|
tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
|
|
|
|
instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
|
|
instance->passive = ctrl_info->cluster.passive;
|
|
memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
|
|
instance->UnevenSpanSupport =
|
|
ctrl_info->adapterOperations2.supportUnevenSpans;
|
|
if (instance->UnevenSpanSupport) {
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
if (MR_ValidateMapInfo(instance, instance->map_id))
|
|
fusion->fast_path_io = 1;
|
|
else
|
|
fusion->fast_path_io = 0;
|
|
|
|
}
|
|
if (ctrl_info->host_interface.SRIOV) {
|
|
instance->requestorId = ctrl_info->iov.requestorId;
|
|
if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
|
|
if (!ctrl_info->adapterOperations2.activePassive)
|
|
instance->PlasmaFW111 = 1;
|
|
|
|
dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
|
|
instance->PlasmaFW111 ? "1.11" : "new");
|
|
|
|
if (instance->PlasmaFW111) {
|
|
iovPtr = (struct IOV_111 *)
|
|
((unsigned char *)ctrl_info + IOV_111_OFFSET);
|
|
instance->requestorId = iovPtr->requestorId;
|
|
}
|
|
}
|
|
dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
|
|
instance->requestorId);
|
|
}
|
|
|
|
instance->crash_dump_fw_support =
|
|
ctrl_info->adapterOperations3.supportCrashDump;
|
|
instance->crash_dump_drv_support =
|
|
(instance->crash_dump_fw_support &&
|
|
instance->crash_dump_buf);
|
|
if (instance->crash_dump_drv_support)
|
|
megasas_set_crash_dump_params(instance,
|
|
MR_CRASH_BUF_TURN_OFF);
|
|
|
|
else {
|
|
if (instance->crash_dump_buf)
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
CRASH_DMA_BUF_SIZE,
|
|
instance->crash_dump_buf,
|
|
instance->crash_dump_h);
|
|
instance->crash_dump_buf = NULL;
|
|
}
|
|
|
|
if (instance->snapdump_wait_time) {
|
|
megasas_get_snapdump_properties(instance);
|
|
dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",
|
|
instance->snapdump_wait_time);
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
|
|
le16_to_cpu(ctrl_info->pci.vendor_id),
|
|
le16_to_cpu(ctrl_info->pci.device_id),
|
|
le16_to_cpu(ctrl_info->pci.sub_vendor_id),
|
|
le16_to_cpu(ctrl_info->pci.sub_device_id));
|
|
dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
|
|
instance->UnevenSpanSupport ? "yes" : "no");
|
|
dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
|
|
instance->crash_dump_drv_support ? "yes" : "no");
|
|
dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n",
|
|
instance->use_seqnum_jbod_fp ? "enabled" : "disabled");
|
|
|
|
instance->max_sectors_per_req = instance->max_num_sge *
|
|
SGE_BUFFER_SIZE / 512;
|
|
if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
|
|
instance->max_sectors_per_req = tmp_sectors;
|
|
|
|
/* Check for valid throttlequeuedepth module parameter */
|
|
if (throttlequeuedepth &&
|
|
throttlequeuedepth <= instance->max_scsi_cmds)
|
|
instance->throttlequeuedepth = throttlequeuedepth;
|
|
else
|
|
instance->throttlequeuedepth =
|
|
MEGASAS_THROTTLE_QUEUE_DEPTH;
|
|
|
|
if ((resetwaittime < 1) ||
|
|
(resetwaittime > MEGASAS_RESET_WAIT_TIME))
|
|
resetwaittime = MEGASAS_RESET_WAIT_TIME;
|
|
|
|
if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
|
|
scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
|
|
|
|
/* Launch SR-IOV heartbeat timer */
|
|
if (instance->requestorId) {
|
|
if (!megasas_sriov_start_heartbeat(instance, 1)) {
|
|
megasas_start_timer(instance);
|
|
} else {
|
|
instance->skip_heartbeat_timer_del = 1;
|
|
goto fail_get_ld_pd_list;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create and start watchdog thread which will monitor
|
|
* controller state every 1 sec and trigger OCR when
|
|
* it enters fault state
|
|
*/
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
if (megasas_fusion_start_watchdog(instance) != SUCCESS)
|
|
goto fail_start_watchdog;
|
|
|
|
return 0;
|
|
|
|
fail_start_watchdog:
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
fail_get_ld_pd_list:
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_destroy_irqs(instance);
|
|
fail_init_adapter:
|
|
megasas_free_irq_vectors(instance);
|
|
instance->msix_vectors = 0;
|
|
fail_alloc_dma_buf:
|
|
megasas_free_ctrl_dma_buffers(instance);
|
|
megasas_free_ctrl_mem(instance);
|
|
fail_ready_state:
|
|
iounmap(instance->reg_set);
|
|
|
|
fail_ioremap:
|
|
pci_release_selected_regions(instance->pdev, 1<<instance->bar);
|
|
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* megasas_release_mfi - Reverses the FW initialization
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static void megasas_release_mfi(struct megasas_instance *instance)
|
|
{
|
|
u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
|
|
|
|
if (instance->reply_queue)
|
|
dma_free_coherent(&instance->pdev->dev, reply_q_sz,
|
|
instance->reply_queue, instance->reply_queue_h);
|
|
|
|
megasas_free_cmds(instance);
|
|
|
|
iounmap(instance->reg_set);
|
|
|
|
pci_release_selected_regions(instance->pdev, 1<<instance->bar);
|
|
}
|
|
|
|
/**
|
|
* megasas_get_seq_num - Gets latest event sequence numbers
|
|
* @instance: Adapter soft state
|
|
* @eli: FW event log sequence numbers information
|
|
*
|
|
* FW maintains a log of all events in a non-volatile area. Upper layers would
|
|
* usually find out the latest sequence number of the events, the seq number at
|
|
* the boot etc. They would "read" all the events below the latest seq number
|
|
* by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
|
|
* number), they would subsribe to AEN (asynchronous event notification) and
|
|
* wait for the events to happen.
|
|
*/
|
|
static int
|
|
megasas_get_seq_num(struct megasas_instance *instance,
|
|
struct megasas_evt_log_info *eli)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct megasas_evt_log_info *el_info;
|
|
dma_addr_t el_info_h = 0;
|
|
int ret;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
el_info = dma_alloc_coherent(&instance->pdev->dev,
|
|
sizeof(struct megasas_evt_log_info),
|
|
&el_info_h, GFP_KERNEL);
|
|
if (!el_info) {
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
memset(el_info, 0, sizeof(*el_info));
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0x0;
|
|
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 megasas_evt_log_info));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, el_info_h,
|
|
sizeof(struct megasas_evt_log_info));
|
|
|
|
ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
|
|
if (ret != DCMD_SUCCESS) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
goto dcmd_failed;
|
|
}
|
|
|
|
/*
|
|
* Copy the data back into callers buffer
|
|
*/
|
|
eli->newest_seq_num = el_info->newest_seq_num;
|
|
eli->oldest_seq_num = el_info->oldest_seq_num;
|
|
eli->clear_seq_num = el_info->clear_seq_num;
|
|
eli->shutdown_seq_num = el_info->shutdown_seq_num;
|
|
eli->boot_seq_num = el_info->boot_seq_num;
|
|
|
|
dcmd_failed:
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
sizeof(struct megasas_evt_log_info),
|
|
el_info, el_info_h);
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_register_aen - Registers for asynchronous event notification
|
|
* @instance: Adapter soft state
|
|
* @seq_num: The starting sequence number
|
|
* @class_locale: Class of the event
|
|
*
|
|
* This function subscribes for AEN for events beyond the @seq_num. It requests
|
|
* to be notified if and only if the event is of type @class_locale
|
|
*/
|
|
static int
|
|
megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
|
|
u32 class_locale_word)
|
|
{
|
|
int ret_val;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
union megasas_evt_class_locale curr_aen;
|
|
union megasas_evt_class_locale prev_aen;
|
|
|
|
/*
|
|
* If there an AEN pending already (aen_cmd), check if the
|
|
* class_locale of that pending AEN is inclusive of the new
|
|
* AEN request we currently have. If it is, then we don't have
|
|
* to do anything. In other words, whichever events the current
|
|
* AEN request is subscribing to, have already been subscribed
|
|
* to.
|
|
*
|
|
* If the old_cmd is _not_ inclusive, then we have to abort
|
|
* that command, form a class_locale that is superset of both
|
|
* old and current and re-issue to the FW
|
|
*/
|
|
|
|
curr_aen.word = class_locale_word;
|
|
|
|
if (instance->aen_cmd) {
|
|
|
|
prev_aen.word =
|
|
le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
|
|
|
|
if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
|
|
(curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"%s %d out of range class %d send by application\n",
|
|
__func__, __LINE__, curr_aen.members.class);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* A class whose enum value is smaller is inclusive of all
|
|
* higher values. If a PROGRESS (= -1) was previously
|
|
* registered, then a new registration requests for higher
|
|
* classes need not be sent to FW. They are automatically
|
|
* included.
|
|
*
|
|
* Locale numbers don't have such hierarchy. They are bitmap
|
|
* values
|
|
*/
|
|
if ((prev_aen.members.class <= curr_aen.members.class) &&
|
|
!((prev_aen.members.locale & curr_aen.members.locale) ^
|
|
curr_aen.members.locale)) {
|
|
/*
|
|
* Previously issued event registration includes
|
|
* current request. Nothing to do.
|
|
*/
|
|
return 0;
|
|
} else {
|
|
curr_aen.members.locale |= prev_aen.members.locale;
|
|
|
|
if (prev_aen.members.class < curr_aen.members.class)
|
|
curr_aen.members.class = prev_aen.members.class;
|
|
|
|
instance->aen_cmd->abort_aen = 1;
|
|
ret_val = megasas_issue_blocked_abort_cmd(instance,
|
|
instance->
|
|
aen_cmd, 30);
|
|
|
|
if (ret_val) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
|
|
"previous AEN command\n");
|
|
return ret_val;
|
|
}
|
|
}
|
|
}
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd)
|
|
return -ENOMEM;
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
|
|
|
|
/*
|
|
* Prepare DCMD for aen registration
|
|
*/
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0x0;
|
|
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 megasas_evt_detail));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
|
|
dcmd->mbox.w[0] = cpu_to_le32(seq_num);
|
|
instance->last_seq_num = seq_num;
|
|
dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
|
|
sizeof(struct megasas_evt_detail));
|
|
|
|
if (instance->aen_cmd != NULL) {
|
|
megasas_return_cmd(instance, cmd);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Store reference to the cmd used to register for AEN. When an
|
|
* application wants us to register for AEN, we have to abort this
|
|
* cmd and re-register with a new EVENT LOCALE supplied by that app
|
|
*/
|
|
instance->aen_cmd = cmd;
|
|
|
|
/*
|
|
* Issue the aen registration frame
|
|
*/
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* megasas_get_target_prop - Send DCMD with below details to firmware.
|
|
*
|
|
* This DCMD will fetch few properties of LD/system PD defined
|
|
* in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
|
|
*
|
|
* DCMD send by drivers whenever new target is added to the OS.
|
|
*
|
|
* dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
|
|
* dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
|
|
* 0 = system PD, 1 = LD.
|
|
* dcmd.mbox.s[1] - TargetID for LD/system PD.
|
|
* dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
|
|
*
|
|
* @instance: Adapter soft state
|
|
* @sdev: OS provided scsi device
|
|
*
|
|
* Returns 0 on success non-zero on failure.
|
|
*/
|
|
int
|
|
megasas_get_target_prop(struct megasas_instance *instance,
|
|
struct scsi_device *sdev)
|
|
{
|
|
int ret;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
u16 targetId = ((sdev->channel % 2) * 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 -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
|
|
|
|
dcmd->mbox.s[1] = cpu_to_le16(targetId);
|
|
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_TARGET_PROPERTIES));
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
|
|
sizeof(struct MR_TARGET_PROPERTIES));
|
|
|
|
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_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;
|
|
|
|
default:
|
|
megasas_return_cmd(instance, cmd);
|
|
}
|
|
if (ret != DCMD_SUCCESS)
|
|
dev_err(&instance->pdev->dev,
|
|
"return from %s %d return value %d\n",
|
|
__func__, __LINE__, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_start_aen - Subscribes to AEN during driver load time
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int megasas_start_aen(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_evt_log_info eli;
|
|
union megasas_evt_class_locale class_locale;
|
|
|
|
/*
|
|
* Get the latest sequence number from FW
|
|
*/
|
|
memset(&eli, 0, sizeof(eli));
|
|
|
|
if (megasas_get_seq_num(instance, &eli))
|
|
return -1;
|
|
|
|
/*
|
|
* Register AEN with FW for latest sequence number plus 1
|
|
*/
|
|
class_locale.members.reserved = 0;
|
|
class_locale.members.locale = MR_EVT_LOCALE_ALL;
|
|
class_locale.members.class = MR_EVT_CLASS_DEBUG;
|
|
|
|
return megasas_register_aen(instance,
|
|
le32_to_cpu(eli.newest_seq_num) + 1,
|
|
class_locale.word);
|
|
}
|
|
|
|
static ssize_t
|
|
sysfs_max_sectors_read(struct file *filep, struct kobject *kobj,
|
|
struct bin_attribute *bin_attr,
|
|
char *buf, loff_t off, size_t count)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
|
|
struct Scsi_Host *host = class_to_shost(dev);
|
|
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)host->hostdata;
|
|
|
|
count = sprintf(buf,"%u\n", instance->max_sectors_per_req);
|
|
|
|
return count+1;
|
|
}
|
|
|
|
static struct bin_attribute sysfs_max_sectors_attr = {
|
|
.attr = {
|
|
.name = "max_sectors",
|
|
.mode = S_IRUSR|S_IRGRP|S_IROTH,
|
|
},
|
|
.size = 7,
|
|
.read = sysfs_max_sectors_read,
|
|
};
|
|
|
|
/**
|
|
* megasas_io_attach - Attaches this driver to SCSI mid-layer
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static int megasas_io_attach(struct megasas_instance *instance)
|
|
{
|
|
struct Scsi_Host *host = instance->host;
|
|
u32 error;
|
|
|
|
/*
|
|
* Export parameters required by SCSI mid-layer
|
|
*/
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0))
|
|
host->irq = instance->pdev->irq;
|
|
#endif
|
|
host->unique_id = instance->unique_id;
|
|
host->can_queue = instance->max_scsi_cmds;
|
|
host->this_id = instance->init_id;
|
|
host->sg_tablesize = instance->max_num_sge;
|
|
|
|
if (instance->fw_support_ieee)
|
|
instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
|
|
|
|
/*
|
|
* Check if the module parameter value for max_sectors can be used
|
|
*/
|
|
if (max_sectors && max_sectors < instance->max_sectors_per_req)
|
|
instance->max_sectors_per_req = max_sectors;
|
|
else {
|
|
if (max_sectors) {
|
|
if (((instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
|
|
(instance->pdev->device ==
|
|
PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
|
|
(max_sectors <= MEGASAS_MAX_SECTORS)) {
|
|
instance->max_sectors_per_req = max_sectors;
|
|
} else {
|
|
dev_info(&instance->pdev->dev, "max_sectors should be > 0"
|
|
"and <= %d (or < 1MB for GEN2 controller)\n",
|
|
instance->max_sectors_per_req);
|
|
}
|
|
}
|
|
}
|
|
|
|
host->max_sectors = instance->max_sectors_per_req;
|
|
host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
|
|
host->max_channel = MEGASAS_MAX_CHANNELS - 1;
|
|
host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
host->max_lun = MEGASAS_MAX_LUN;
|
|
host->max_cmd_len = 16;
|
|
|
|
#if defined(HOST_TAGSET_SUPPORT)
|
|
/* Use shared host tagset only for fusion adaptors
|
|
* if there are managed interrupts (smp affinity enabled case).
|
|
* Single msix_vectors in kdump, so shared host tag is also disabled.
|
|
*/
|
|
|
|
host->host_tagset = 0;
|
|
host->nr_hw_queues = 1;
|
|
|
|
if ((instance->adapter_type != MFI_SERIES) &&
|
|
(instance->msix_vectors > instance->low_latency_index_start) &&
|
|
host_tagset_enable &&
|
|
instance->smp_affinity_enable) {
|
|
host->host_tagset = 1;
|
|
host->nr_hw_queues = instance->msix_vectors -
|
|
instance->low_latency_index_start + instance->iopoll_q_count;
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,12,0))
|
|
if (instance->iopoll_q_count)
|
|
host->nr_maps = 3;
|
|
#endif
|
|
} else {
|
|
instance->iopoll_q_count = 0;
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"Max firmware commands: %d shared with default "
|
|
"HW queues: %d poll_queues: %d\n", instance->max_fw_cmds,
|
|
host->nr_hw_queues - instance->iopoll_q_count,
|
|
instance->iopoll_q_count);
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0))
|
|
error = scsi_init_shared_tag_map(host, host->can_queue);
|
|
if (error) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to shared tag from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
/*
|
|
* Notify the mid-layer about the new controller
|
|
*/
|
|
if (scsi_add_host(host, &instance->pdev->dev)) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to add host from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* Create sysfs entries for module paramaters
|
|
*/
|
|
error = sysfs_create_bin_file(&instance->host->shost_dev.kobj,
|
|
&sysfs_max_sectors_attr);
|
|
|
|
if (error) {
|
|
dev_err(&instance->pdev->dev,
|
|
"megasas: Error in creating the sysfs entry"
|
|
" max_sectors.\n");
|
|
scsi_remove_host(host);
|
|
return error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_dma_set_mask_and_coherent- Set streaming and coherent DMA mask
|
|
* dev- struct representing device inside struct pci_dev
|
|
* mask- mask to be set
|
|
* return- 0 for success
|
|
* non-zero for failure
|
|
*/
|
|
static inline int megasas_dma_set_mask_and_coherent(struct device *dev, u64 mask)
|
|
{
|
|
int rc = dma_set_mask(dev, mask);
|
|
if (rc == 0)
|
|
dma_set_coherent_mask(dev, mask);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* megasas_set_dma_mask - Set DMA mask for supported controllers
|
|
*
|
|
* @instance: Adapter soft state
|
|
* Description:
|
|
*
|
|
* For Ventura, driver/FW will operate in 63bit DMA addresses.
|
|
*
|
|
* For invader-
|
|
* By default, driver/FW will operate in 32bit DMA addresses
|
|
* for consistent DMA mapping but if 32 bit consistent
|
|
* DMA mask fails, driver will try with 63 bit consistent
|
|
* mask provided FW is true 63bit DMA capable
|
|
*
|
|
* For older controllers(Thunderbolt and MFI based adapters)-
|
|
* driver/FW will operate in 32 bit consistent DMA addresses.
|
|
*
|
|
* Although Invader FW supporting full 64-bit DMA, Ventura and Aero controllers
|
|
* supports 64-bit DMA addressing, due to HW design, address 0xFFFFFFFF-FFFFFFFF
|
|
* with all 64-bits set will result in PL fault - rollover error.
|
|
* Use 63-bit mask instead.
|
|
*/
|
|
static int
|
|
megasas_set_dma_mask(struct megasas_instance *instance)
|
|
{
|
|
u64 consistent_mask;
|
|
struct pci_dev *pdev;
|
|
u32 scratch_pad_1;
|
|
|
|
pdev = instance->pdev;
|
|
consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ?
|
|
DMA_BIT_MASK(63) : DMA_BIT_MASK(32);
|
|
|
|
if (IS_DMA64) {
|
|
if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&
|
|
megasas_dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
|
|
goto fail_set_dma_mask;
|
|
|
|
if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&
|
|
(dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
|
|
megasas_dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
|
|
/*
|
|
* If 32 bit DMA mask fails, then try for 64 bit mask
|
|
* for FW capable of handling 64 bit DMA.
|
|
*/
|
|
scratch_pad_1 = megasas_readl
|
|
(instance, &instance->reg_set->outbound_scratch_pad_1);
|
|
|
|
if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
|
|
goto fail_set_dma_mask;
|
|
else if (megasas_dma_set_mask_and_coherent(&pdev->dev,
|
|
DMA_BIT_MASK(63)))
|
|
goto fail_set_dma_mask;
|
|
}
|
|
} else if (megasas_dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
|
|
goto fail_set_dma_mask;
|
|
|
|
if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
|
|
instance->consistent_mask_64bit = false;
|
|
else
|
|
instance->consistent_mask_64bit = true;
|
|
|
|
dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
|
|
((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"),
|
|
(instance->consistent_mask_64bit ? "63" : "32"));
|
|
|
|
return 0;
|
|
|
|
fail_set_dma_mask:
|
|
dev_err(&pdev->dev, "Failed to set DMA mask\n");
|
|
return -1;
|
|
|
|
}
|
|
|
|
/*
|
|
* megasas_set_adapter_type - Set adapter type.
|
|
* Supported controllers can be divided in
|
|
* different categories-
|
|
* enum MR_ADAPTER_TYPE {
|
|
* MFI_SERIES = 1,
|
|
* THUNDERBOLT_SERIES = 2,
|
|
* INVADER_SERIES = 3,
|
|
* VENTURA_SERIES = 4,
|
|
* AERO_SERIES = 5,
|
|
* };
|
|
* @instance: Adapter soft state
|
|
* return: void
|
|
*/
|
|
static inline void megasas_set_adapter_type(struct megasas_instance *instance)
|
|
{
|
|
if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
|
|
(instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
|
|
instance->adapter_type = MFI_SERIES;
|
|
} else {
|
|
switch (instance->pdev->device) {
|
|
case PCI_DEVICE_ID_LSI_AERO_10E1:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E2:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E5:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E6:
|
|
instance->adapter_type = AERO_SERIES;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_VENTURA:
|
|
case PCI_DEVICE_ID_LSI_CRUSADER:
|
|
case PCI_DEVICE_ID_LSI_HARPOON:
|
|
case PCI_DEVICE_ID_LSI_TOMCAT:
|
|
case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
|
|
case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
|
|
instance->adapter_type = VENTURA_SERIES;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_FUSION:
|
|
case PCI_DEVICE_ID_LSI_PLASMA:
|
|
instance->adapter_type = THUNDERBOLT_SERIES;
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_INVADER:
|
|
case PCI_DEVICE_ID_LSI_INTRUDER:
|
|
case PCI_DEVICE_ID_LSI_INTRUDER_24:
|
|
case PCI_DEVICE_ID_LSI_CUTLASS_52:
|
|
case PCI_DEVICE_ID_LSI_CUTLASS_53:
|
|
case PCI_DEVICE_ID_LSI_FURY:
|
|
instance->adapter_type = INVADER_SERIES;
|
|
break;
|
|
default: /* For all other supported controllers */
|
|
instance->adapter_type = MFI_SERIES;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
|
|
{
|
|
instance->producer = dma_alloc_coherent(&instance->pdev->dev,
|
|
sizeof(u32), &instance->producer_h, GFP_KERNEL);
|
|
instance->consumer = dma_alloc_coherent(&instance->pdev->dev,
|
|
sizeof(u32), &instance->consumer_h, GFP_KERNEL);
|
|
|
|
if (!instance->producer || !instance->consumer) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate memory for producer, consumer\n");
|
|
return -1;
|
|
}
|
|
|
|
*instance->producer = 0;
|
|
*instance->consumer = 0;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_alloc_ctrl_mem - Allocate per controller memory for core data
|
|
* structures which are not common across MFI
|
|
* adapters and fusion adapters.
|
|
* For MFI based adapters, allocate producer and
|
|
* consumer buffers. For fusion adapters, allocate
|
|
* memory for fusion context.
|
|
* @instance: Adapter soft state
|
|
* return: 0 for SUCCESS
|
|
*/
|
|
static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
|
|
{
|
|
instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),
|
|
GFP_KERNEL);
|
|
if (!instance->reply_map)
|
|
return -ENOMEM;
|
|
|
|
switch (instance->adapter_type) {
|
|
case MFI_SERIES:
|
|
if (megasas_alloc_mfi_ctrl_mem(instance))
|
|
goto fail;
|
|
break;
|
|
case AERO_SERIES:
|
|
case VENTURA_SERIES:
|
|
case THUNDERBOLT_SERIES:
|
|
case INVADER_SERIES:
|
|
if (megasas_alloc_fusion_context(instance))
|
|
goto fail;
|
|
break;
|
|
}
|
|
|
|
|
|
return 0;
|
|
fail:
|
|
kfree(instance->reply_map);
|
|
instance->reply_map = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* megasas_free_ctrl_mem - Free fusion context for fusion adapters and
|
|
* producer, consumer buffers for MFI adapters
|
|
*
|
|
* @instance - Adapter soft instance
|
|
*
|
|
*/
|
|
static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
|
|
{
|
|
kfree(instance->reply_map);
|
|
if (instance->adapter_type == MFI_SERIES) {
|
|
if (instance->producer)
|
|
dma_free_coherent(&instance->pdev->dev, sizeof(u32),
|
|
instance->producer,
|
|
instance->producer_h);
|
|
if (instance->consumer)
|
|
dma_free_coherent(&instance->pdev->dev, sizeof(u32),
|
|
instance->consumer,
|
|
instance->consumer_h);
|
|
} else {
|
|
megasas_free_fusion_context(instance);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
|
|
* driver load time
|
|
*
|
|
* @instance- Adapter soft instance
|
|
* @return- O for SUCCESS
|
|
*/
|
|
static inline
|
|
int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
|
|
{
|
|
struct pci_dev *pdev = instance->pdev;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
|
|
instance->evt_detail = dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct megasas_evt_detail),
|
|
&instance->evt_detail_h, GFP_KERNEL);
|
|
|
|
if (!instance->evt_detail) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate event detail buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (fusion) {
|
|
fusion->ioc_init_request =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MPI2_IOC_INIT_REQUEST),
|
|
&fusion->ioc_init_request_phys,
|
|
GFP_KERNEL);
|
|
|
|
if (!fusion->ioc_init_request) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to allocate PD list buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_SNAPDUMP_PROPERTIES),
|
|
&instance->snapdump_prop_h, GFP_KERNEL);
|
|
|
|
if (!instance->snapdump_prop)
|
|
dev_err(&pdev->dev,
|
|
"Failed to allocate snapdump properties buffer\n");
|
|
|
|
|
|
instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev,
|
|
HOST_DEVICE_LIST_SZ,
|
|
&instance->host_device_list_buf_h,
|
|
GFP_KERNEL);
|
|
|
|
if (!instance->host_device_list_buf) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to allocate targetid list buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
}
|
|
|
|
instance->pd_list_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
|
|
&instance->pd_list_buf_h, GFP_KERNEL);
|
|
|
|
if (!instance->pd_list_buf) {
|
|
dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->ctrl_info_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct megasas_ctrl_info),
|
|
&instance->ctrl_info_buf_h, GFP_KERNEL);
|
|
|
|
if (!instance->ctrl_info_buf) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to allocate controller info buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->ld_list_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_LD_LIST),
|
|
&instance->ld_list_buf_h, GFP_KERNEL);
|
|
|
|
if (!instance->ld_list_buf) {
|
|
dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->ld_targetid_list_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_LD_TARGETID_LIST),
|
|
&instance->ld_targetid_list_buf_h, GFP_KERNEL);
|
|
|
|
if (!instance->ld_targetid_list_buf) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to allocate LD targetid list buffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
instance->verbuf = dma_alloc_coherent(&pdev->dev,
|
|
MEGASAS_MAX_NAME * sizeof(u32),
|
|
&instance->verbuf_h, GFP_KERNEL);
|
|
|
|
if (!instance->verbuf)
|
|
dev_err(&instance->pdev->dev, "Failed to allocate version buffer\n");
|
|
|
|
if (!reset_devices) {
|
|
instance->system_info_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_DRV_SYSTEM_INFO),
|
|
&instance->system_info_h, GFP_KERNEL);
|
|
instance->pd_info =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_PD_INFO),
|
|
&instance->pd_info_h, GFP_KERNEL);
|
|
instance->tgt_prop =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_TARGET_PROPERTIES),
|
|
&instance->tgt_prop_h, GFP_KERNEL);
|
|
|
|
if (!instance->system_info_buf)
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate system info buffer\n");
|
|
|
|
if (!instance->pd_info)
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate pd_info buffer\n");
|
|
|
|
if (!instance->tgt_prop)
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate tgt_prop buffer\n");
|
|
|
|
|
|
}
|
|
|
|
if (crashdump_enable) {
|
|
instance->crash_dump_buf =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
CRASH_DMA_BUF_SIZE,
|
|
&instance->crash_dump_h, GFP_KERNEL);
|
|
|
|
if (!instance->crash_dump_buf)
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed to allocate crash dump buffer\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
|
|
* during driver load time
|
|
*
|
|
* @instance- Adapter soft instance
|
|
*
|
|
*/
|
|
static inline
|
|
void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
|
|
{
|
|
struct pci_dev *pdev = instance->pdev;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
|
|
if (instance->evt_detail)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail),
|
|
instance->evt_detail,
|
|
instance->evt_detail_h);
|
|
|
|
if (fusion && fusion->ioc_init_request)
|
|
dma_free_coherent(&pdev->dev,
|
|
sizeof(struct MPI2_IOC_INIT_REQUEST),
|
|
fusion->ioc_init_request,
|
|
fusion->ioc_init_request_phys);
|
|
|
|
if (instance->pd_list_buf)
|
|
dma_free_coherent(&pdev->dev,
|
|
MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
|
|
instance->pd_list_buf,
|
|
instance->pd_list_buf_h);
|
|
|
|
if (instance->ld_list_buf)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST),
|
|
instance->ld_list_buf,
|
|
instance->ld_list_buf_h);
|
|
|
|
if (instance->ld_targetid_list_buf)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST),
|
|
instance->ld_targetid_list_buf,
|
|
instance->ld_targetid_list_buf_h);
|
|
|
|
if (instance->ctrl_info_buf)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info),
|
|
instance->ctrl_info_buf,
|
|
instance->ctrl_info_buf_h);
|
|
|
|
if (instance->verbuf)
|
|
dma_free_coherent(&pdev->dev, MEGASAS_MAX_NAME * sizeof(u32),
|
|
instance->verbuf, instance->verbuf_h);
|
|
|
|
if (instance->system_info_buf)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO),
|
|
instance->system_info_buf,
|
|
instance->system_info_h);
|
|
|
|
if (instance->pd_info)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO),
|
|
instance->pd_info, instance->pd_info_h);
|
|
|
|
if (instance->tgt_prop)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES),
|
|
instance->tgt_prop, instance->tgt_prop_h);
|
|
|
|
if (instance->crash_dump_buf)
|
|
dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
|
|
instance->crash_dump_buf,
|
|
instance->crash_dump_h);
|
|
|
|
if (instance->snapdump_prop)
|
|
dma_free_coherent(&pdev->dev,
|
|
sizeof(struct MR_SNAPDUMP_PROPERTIES),
|
|
instance->snapdump_prop,
|
|
instance->snapdump_prop_h);
|
|
|
|
if (instance->host_device_list_buf)
|
|
dma_free_coherent(&pdev->dev,
|
|
HOST_DEVICE_LIST_SZ,
|
|
instance->host_device_list_buf,
|
|
instance->host_device_list_buf_h);
|
|
|
|
}
|
|
|
|
/*
|
|
* megasas_init_ctrl_params - Initialize controller's instance
|
|
* parameters before FW init
|
|
* @instance - Adapter soft instance
|
|
* @return - void
|
|
*/
|
|
static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
|
|
{
|
|
instance->fw_crash_state = UNAVAILABLE;
|
|
|
|
megasas_poll_wait_aen = 0;
|
|
instance->issuepend_done = 1;
|
|
atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
|
|
|
|
/*
|
|
* Initialize locks and queues
|
|
*/
|
|
INIT_LIST_HEAD(&instance->cmd_pool);
|
|
INIT_LIST_HEAD(&instance->internal_reset_pending_q);
|
|
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
atomic64_set(&instance->total_io_count, 0);
|
|
|
|
init_waitqueue_head(&instance->int_cmd_wait_q);
|
|
init_waitqueue_head(&instance->abort_cmd_wait_q);
|
|
|
|
spin_lock_init(&instance->crashdump_lock);
|
|
spin_lock_init(&instance->mfi_pool_lock);
|
|
spin_lock_init(&instance->hba_lock);
|
|
spin_lock_init(&instance->stream_lock);
|
|
spin_lock_init(&instance->completion_lock);
|
|
|
|
mutex_init(&instance->reset_mutex);
|
|
|
|
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
|
|
(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
|
|
instance->flag_ieee = 1;
|
|
|
|
megasas_dbg_lvl = 0;
|
|
instance->flag = 0;
|
|
instance->unload = 1;
|
|
instance->last_time = 0;
|
|
instance->disableOnlineCtrlReset = 1;
|
|
instance->UnevenSpanSupport = 0;
|
|
instance->smp_affinity_enable = smp_affinity_enable ? true : false;
|
|
instance->msix_load_balance = false;
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
|
|
else
|
|
INIT_WORK(&instance->work_init, process_fw_state_change_wq);
|
|
}
|
|
|
|
static inline void
|
|
megasas_get_blk_mq(struct megasas_instance *instance)
|
|
{
|
|
#if ((defined(RHEL_MAJOR) && (RHEL_MAJOR == 8)) || \
|
|
(LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)))
|
|
instance->use_blk_mq = true;
|
|
#elif ((defined(RHEL_MAJOR) && (RHEL_MAJOR == 7) && (RHEL_MINOR >=2)) || \
|
|
(LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)) && \
|
|
(LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)))
|
|
struct Scsi_Host *host = instance->host;
|
|
if (shost_use_blk_mq(host))
|
|
instance->use_blk_mq = true;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* megasas_probe_one - PCI hotplug entry point
|
|
* @pdev: PCI device structure
|
|
* @id: PCI ids of supported hotplugged adapter
|
|
*/
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,10))
|
|
static int __devinit
|
|
megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
#else
|
|
static int
|
|
megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
#endif
|
|
{
|
|
int rval, pos;
|
|
struct Scsi_Host *host;
|
|
struct megasas_instance *instance;
|
|
u16 control = 0;
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0))
|
|
u32 dev_cap = 0;
|
|
#endif
|
|
|
|
switch (pdev->device) {
|
|
case PCI_DEVICE_ID_LSI_AERO_10E0:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E4:
|
|
dev_err(&pdev->dev, "Adapter is in invalid mode\n");
|
|
return 1;
|
|
case PCI_DEVICE_ID_LSI_AERO_10E3:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E7:
|
|
dev_err(&pdev->dev, "Adapter is in tampered mode\n");
|
|
return 1;
|
|
case PCI_DEVICE_ID_LSI_AERO_10E1:
|
|
case PCI_DEVICE_ID_LSI_AERO_10E5:
|
|
dev_info(&pdev->dev, "Adapter is in configurable secure mode\n");
|
|
break;
|
|
}
|
|
|
|
/* Reset MSI-X in the kdump kernel */
|
|
if (reset_devices) {
|
|
pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
|
|
if (pos) {
|
|
pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
|
|
&control);
|
|
if (control & PCI_MSIX_FLAGS_ENABLE) {
|
|
dev_info(&pdev->dev, "resetting MSI-X\n");
|
|
pci_write_config_word(pdev,
|
|
pos + PCI_MSIX_FLAGS,
|
|
control &
|
|
~PCI_MSIX_FLAGS_ENABLE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* PCI prepping: enable device set bus mastering and dma mask
|
|
*/
|
|
rval = pci_enable_device_mem(pdev);
|
|
|
|
if (rval) {
|
|
return rval;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
host = scsi_host_alloc(&megasas_template,
|
|
sizeof(struct megasas_instance));
|
|
|
|
if (!host) {
|
|
dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
|
|
goto fail_alloc_instance;
|
|
}
|
|
|
|
instance = (struct megasas_instance *)host->hostdata;
|
|
memset(instance, 0, sizeof(*instance));
|
|
atomic_set(&instance->fw_reset_no_pci_access, 0);
|
|
|
|
/*
|
|
* Initialize PCI related and misc parameters
|
|
*/
|
|
instance->pdev = pdev;
|
|
instance->host = host;
|
|
instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
|
|
instance->init_id = MEGASAS_DEFAULT_INIT_ID;
|
|
|
|
megasas_set_adapter_type(instance);
|
|
|
|
/*
|
|
* Enable PCIe Extended tags for < 4.11 kernels
|
|
* > 4.11 kernels PCI Subsystem takes care of
|
|
* enabling PCIe tags
|
|
*/
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0))
|
|
pcie_capability_read_dword(pdev, PCI_EXP_DEVCAP, &dev_cap);
|
|
if (dev_cap & PCI_EXP_DEVCAP_EXT_TAG){
|
|
dev_info(&pdev->dev, "enabling Extended Tags\n");
|
|
pcie_capability_set_word(pdev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_EXT_TAG);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Initialize MFI Firmware
|
|
*/
|
|
if (megasas_init_fw(instance))
|
|
goto fail_init_mfi;
|
|
|
|
if (instance->requestorId) {
|
|
if (instance->PlasmaFW111) {
|
|
instance->vf_affiliation_111 =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111),
|
|
&instance->vf_affiliation_111_h,
|
|
GFP_KERNEL);
|
|
if (!instance->vf_affiliation_111)
|
|
dev_warn(&pdev->dev, "Can't allocate "
|
|
"memory for VF affiliation buffer\n");
|
|
} else {
|
|
instance->vf_affiliation =
|
|
dma_alloc_coherent(&pdev->dev,
|
|
(MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION),
|
|
&instance->vf_affiliation_h,
|
|
GFP_KERNEL);
|
|
if (!instance->vf_affiliation)
|
|
dev_warn(&pdev->dev, "Can't allocate "
|
|
"memory for VF affiliation buffer\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Store instance in PCI softstate
|
|
*/
|
|
pci_set_drvdata(pdev, instance);
|
|
|
|
/*
|
|
* Add this controller to megasas_mgmt_info structure so that it
|
|
* can be exported to management applications
|
|
*/
|
|
megasas_mgmt_info.count++;
|
|
megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
|
|
megasas_mgmt_info.max_index++;
|
|
|
|
/*
|
|
* Register with SCSI mid-layer
|
|
*/
|
|
if (megasas_io_attach(instance))
|
|
goto fail_io_attach;
|
|
|
|
megasas_get_blk_mq(instance);
|
|
|
|
instance->unload = 0;
|
|
/*
|
|
* Trigger SCSI to scan our drives
|
|
*/
|
|
if (!instance->enable_fw_dev_list ||
|
|
(instance->host_device_list_buf->count > 0))
|
|
scsi_scan_host(host);
|
|
|
|
/*
|
|
* Initiate AEN (Asynchronous Event Notification)
|
|
*/
|
|
if (megasas_start_aen(instance)) {
|
|
dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
|
|
goto fail_start_aen;
|
|
}
|
|
|
|
megasas_setup_debugfs(instance);
|
|
|
|
/* Get current SR-IOV LD/VF affiliation */
|
|
if (instance->requestorId)
|
|
megasas_get_ld_vf_affiliation(instance, 1);
|
|
|
|
return 0;
|
|
|
|
fail_start_aen:
|
|
instance->unload = 1;
|
|
scsi_remove_host(instance->host);
|
|
fail_io_attach:
|
|
megasas_mgmt_info.count--;
|
|
megasas_mgmt_info.max_index--;
|
|
megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
|
|
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_destroy_irqs(instance);
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_release_fusion(instance);
|
|
else
|
|
megasas_release_mfi(instance);
|
|
megasas_free_irq_vectors(instance);
|
|
instance->msix_vectors = 0;
|
|
|
|
if (instance->fw_crash_state != UNAVAILABLE)
|
|
megasas_free_host_crash_buffer(instance);
|
|
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_fusion_stop_watchdog(instance);
|
|
|
|
fail_init_mfi:
|
|
scsi_host_put(host);
|
|
|
|
fail_alloc_instance:
|
|
pci_disable_device(pdev);
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
/**
|
|
* megasas_flush_cache - Requests FW to flush all its caches
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static void megasas_flush_cache(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
|
|
return;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd)
|
|
return;
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0x0;
|
|
dcmd->sge_count = 0;
|
|
dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = 0;
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
|
|
dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
|
|
|
|
if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
|
|
!= DCMD_SUCCESS) {
|
|
dev_err(&instance->pdev->dev,
|
|
"return from %s %d\n", __func__, __LINE__);
|
|
return;
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
}
|
|
|
|
/**
|
|
* megasas_shutdown_controller - Instructs FW to shutdown the controller
|
|
* @instance: Adapter soft state
|
|
* @opcode: Shutdown/Hibernate
|
|
*/
|
|
static void megasas_shutdown_controller(struct megasas_instance *instance,
|
|
u32 opcode)
|
|
{
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
|
|
return;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd)
|
|
return;
|
|
|
|
if (instance->aen_cmd)
|
|
megasas_issue_blocked_abort_cmd(instance,
|
|
instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
|
|
if (instance->map_update_cmd)
|
|
megasas_issue_blocked_abort_cmd(instance,
|
|
instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
|
|
if (instance->jbod_seq_cmd)
|
|
megasas_issue_blocked_abort_cmd(instance,
|
|
instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0x0;
|
|
dcmd->sge_count = 0;
|
|
dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = 0;
|
|
dcmd->opcode = cpu_to_le32(opcode);
|
|
|
|
if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
|
|
!= DCMD_SUCCESS) {
|
|
dev_err(&instance->pdev->dev,
|
|
"return from %s %d\n", __func__, __LINE__);
|
|
return;
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/**
|
|
* megasas_suspend - driver suspend entry point
|
|
* @pdev: PCI device structure
|
|
* @state: PCI power state to suspend routine
|
|
*/
|
|
static int
|
|
megasas_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct megasas_instance *instance;
|
|
|
|
instance = pci_get_drvdata(pdev);
|
|
|
|
if (!instance)
|
|
return 0;
|
|
|
|
instance->unload = 1;
|
|
|
|
dev_info(&pdev->dev, "%s is called\n", __func__);
|
|
|
|
/* Shutdown SR-IOV heartbeat timer */
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
|
|
/* Stop the FW fault detection watchdog */
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_fusion_stop_watchdog(instance);
|
|
|
|
|
|
megasas_flush_cache(instance);
|
|
megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
|
|
|
|
/* cancel the delayed work if this work still in queue */
|
|
if (instance->ev != NULL) {
|
|
struct megasas_aen_event *ev = instance->ev;
|
|
cancel_delayed_work_sync(&ev->hotplug_work);
|
|
instance->ev = NULL;
|
|
}
|
|
|
|
tasklet_kill(&instance->isr_tasklet);
|
|
|
|
pci_set_drvdata(instance->pdev, instance);
|
|
instance->instancet->disable_intr(instance);
|
|
|
|
megasas_destroy_irqs(instance);
|
|
megasas_free_irq_vectors(instance);
|
|
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_resume- driver resume entry point
|
|
* @pdev: PCI device structure
|
|
*/
|
|
static int
|
|
megasas_resume(struct pci_dev *pdev)
|
|
{
|
|
int rval;
|
|
struct Scsi_Host *host;
|
|
struct megasas_instance *instance;
|
|
u32 status_reg;
|
|
|
|
instance = pci_get_drvdata(pdev);
|
|
|
|
if (!instance)
|
|
return 0;
|
|
|
|
host = instance->host;
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_enable_wake(pdev, PCI_D0, 0);
|
|
pci_restore_state(pdev);
|
|
|
|
dev_info(&pdev->dev, "%s is called\n", __func__);
|
|
/*
|
|
* PCI prepping: enable device set bus mastering and dma mask
|
|
*/
|
|
rval = pci_enable_device_mem(pdev);
|
|
|
|
if (rval) {
|
|
dev_err(&pdev->dev, "Enable device failed\n");
|
|
return rval;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
/*
|
|
* We expect the FW state to be READY
|
|
*/
|
|
if (megasas_transition_to_ready(instance, 0)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"Failed to transition controller to ready from %s!\n",
|
|
__func__);
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
status_reg = instance->instancet->read_fw_status_reg(
|
|
instance);
|
|
if (status_reg & MFI_RESET_ADAPTER) {
|
|
if (megasas_adp_reset_wait_for_ready
|
|
(instance, true, 0) == FAILED)
|
|
goto fail_ready_state;
|
|
} else {
|
|
goto fail_ready_state;
|
|
}
|
|
} else {
|
|
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);
|
|
|
|
/*waitting for about 30 second before retry*/
|
|
ssleep(30);
|
|
|
|
if (megasas_transition_to_ready(instance, 0))
|
|
goto fail_ready_state;
|
|
}
|
|
|
|
dev_info(&instance->pdev->dev,
|
|
"FW restarted successfully from %s!\n",
|
|
__func__);
|
|
}
|
|
|
|
if (megasas_set_dma_mask(instance))
|
|
goto fail_set_dma_mask;
|
|
|
|
/*
|
|
* Initialize MFI Firmware
|
|
*/
|
|
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
atomic_set(&instance->ldio_outstanding, 0);
|
|
|
|
/* Now re-enable MSI-X */
|
|
#if defined(USE_MANAGED_IRQ_API)
|
|
if (instance->msix_vectors)
|
|
megasas_alloc_irq_vectors(instance);
|
|
else
|
|
rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
|
|
|
|
if (rval < 0)
|
|
goto fail_reenable_msix;
|
|
#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)) && \
|
|
(LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0))
|
|
if (instance->msix_vectors)
|
|
rval = pci_enable_msix_exact(instance->pdev, instance->msixentry,
|
|
instance->msix_vectors);
|
|
else
|
|
rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
|
|
|
|
if (rval < 0)
|
|
goto fail_reenable_msix;
|
|
|
|
#else
|
|
if (instance->msix_vectors &&
|
|
pci_enable_msix(instance->pdev, instance->msixentry, instance->msix_vectors))
|
|
goto fail_reenable_msix;
|
|
#endif
|
|
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
megasas_reset_reply_desc(instance);
|
|
if (megasas_ioc_init_fusion(instance)) {
|
|
megasas_free_cmds(instance);
|
|
megasas_free_cmds_fusion(instance);
|
|
goto fail_init_mfi;
|
|
}
|
|
if (!megasas_get_map_info(instance))
|
|
megasas_sync_map_info(instance);
|
|
} else {
|
|
*instance->producer = 0;
|
|
*instance->consumer = 0;
|
|
if (megasas_issue_init_mfi(instance))
|
|
goto fail_init_mfi;
|
|
}
|
|
|
|
if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
|
|
goto fail_init_mfi;
|
|
|
|
tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
|
|
(unsigned long)instance);
|
|
|
|
if (instance->msix_vectors ?
|
|
megasas_setup_irqs_msix(instance, 0) :
|
|
megasas_setup_irqs_ioapic(instance))
|
|
goto fail_init_mfi;
|
|
|
|
#if defined(ENABLE_IRQ_POLL)
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_setup_irq_poll(instance);
|
|
#endif
|
|
/* Re-launch SR-IOV heartbeat timer */
|
|
if (instance->requestorId) {
|
|
if (!megasas_sriov_start_heartbeat(instance, 0))
|
|
megasas_start_timer(instance);
|
|
else {
|
|
instance->skip_heartbeat_timer_del = 1;
|
|
goto fail_init_mfi;
|
|
}
|
|
}
|
|
|
|
instance->instancet->enable_intr(instance);
|
|
megasas_setup_jbod_map(instance);
|
|
instance->unload = 0;
|
|
|
|
/*
|
|
* Initiate AEN (Asynchronous Event Notification)
|
|
*/
|
|
if (megasas_start_aen(instance))
|
|
dev_err(&instance->pdev->dev, "Start AEN failed\n");
|
|
|
|
/* Re-launch FW fault watchdog */
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
if (megasas_fusion_start_watchdog(instance) != SUCCESS)
|
|
goto fail_start_watchdog;
|
|
|
|
return 0;
|
|
|
|
fail_start_watchdog:
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
fail_init_mfi:
|
|
megasas_free_ctrl_dma_buffers(instance);
|
|
megasas_free_ctrl_mem(instance);
|
|
scsi_host_put(host);
|
|
|
|
fail_reenable_msix:
|
|
fail_set_dma_mask:
|
|
fail_ready_state:
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
return -ENODEV;
|
|
}
|
|
#else
|
|
#define megasas_suspend NULL
|
|
#define megasas_resume NULL
|
|
#endif
|
|
|
|
static inline int
|
|
megasas_wait_for_adapter_operational(struct megasas_instance *instance)
|
|
{
|
|
int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
|
|
int i;
|
|
u8 adp_state;
|
|
|
|
for (i = 0; i < wait_time; i++) {
|
|
adp_state = atomic_read(&instance->adprecovery);
|
|
if ((adp_state == MEGASAS_HBA_OPERATIONAL) ||
|
|
(adp_state == MEGASAS_HW_CRITICAL_ERROR))
|
|
break;
|
|
|
|
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
|
|
dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
|
|
|
|
msleep(1000);
|
|
}
|
|
|
|
if (adp_state != MEGASAS_HBA_OPERATIONAL) {
|
|
dev_info(&instance->pdev->dev,
|
|
"%s HBA failed to become operational, adp_state %d\n",
|
|
__func__, adp_state);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_detach_one - PCI hot"un"plug entry point
|
|
* @pdev: PCI device structure
|
|
*/
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,10))
|
|
static void __devexit megasas_detach_one(struct pci_dev *pdev)
|
|
#else
|
|
static void megasas_detach_one(struct pci_dev *pdev)
|
|
#endif
|
|
|
|
{
|
|
int i;
|
|
struct Scsi_Host *host;
|
|
struct megasas_instance *instance;
|
|
struct fusion_context *fusion;
|
|
u32 pd_seq_map_sz;
|
|
|
|
instance = pci_get_drvdata(pdev);
|
|
|
|
if (!instance)
|
|
return;
|
|
|
|
host = instance->host;
|
|
fusion = instance->ctrl_context;
|
|
|
|
/* Shutdown SR-IOV heartbeat timer */
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
|
|
/* Stop the FW fault detection watchdog */
|
|
if (instance->adapter_type != MFI_SERIES)
|
|
megasas_fusion_stop_watchdog(instance);
|
|
|
|
if (instance->fw_crash_state != UNAVAILABLE)
|
|
megasas_free_host_crash_buffer(instance);
|
|
scsi_remove_host(instance->host);
|
|
instance->unload = 1;
|
|
|
|
if (megasas_wait_for_adapter_operational(instance))
|
|
goto skip_firing_dcmds;
|
|
|
|
megasas_flush_cache(instance);
|
|
megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
|
|
|
|
skip_firing_dcmds:
|
|
/* cancel the delayed work if this work still in queue*/
|
|
if (instance->ev != NULL) {
|
|
struct megasas_aen_event *ev = instance->ev;
|
|
cancel_delayed_work_sync(&ev->hotplug_work);
|
|
instance->ev = NULL;
|
|
}
|
|
|
|
/* cancel all wait events */
|
|
wake_up_all(&instance->int_cmd_wait_q);
|
|
|
|
tasklet_kill(&instance->isr_tasklet);
|
|
|
|
/*
|
|
* Take the instance off the instance array. Note that we will not
|
|
* decrement the max_index. We let this array be sparse array
|
|
*/
|
|
for (i = 0; i < megasas_mgmt_info.max_index; i++) {
|
|
if (megasas_mgmt_info.instance[i] == instance) {
|
|
megasas_mgmt_info.count--;
|
|
megasas_mgmt_info.instance[i] = NULL;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
instance->instancet->disable_intr(instance);
|
|
|
|
megasas_destroy_irqs(instance);
|
|
megasas_free_irq_vectors(instance);
|
|
|
|
if (instance->adapter_type >= VENTURA_SERIES) {
|
|
for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
|
|
kfree(fusion->stream_detect_by_ld[i]);
|
|
kfree(fusion->stream_detect_by_ld);
|
|
fusion->stream_detect_by_ld = NULL;
|
|
}
|
|
|
|
|
|
if (instance->adapter_type != MFI_SERIES) {
|
|
megasas_release_fusion(instance);
|
|
pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
|
|
(sizeof(struct MR_PD_CFG_SEQ) *
|
|
(MAX_PHYSICAL_DEVICES - 1));
|
|
for (i = 0; i < 2 ; i++) {
|
|
if (fusion->ld_map[i])
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
fusion->max_map_sz,
|
|
fusion->ld_map[i],
|
|
fusion->ld_map_phys[i]);
|
|
if (fusion->ld_drv_map[i]) {
|
|
if (is_vmalloc_addr(fusion->ld_drv_map[i]))
|
|
vfree(fusion->ld_drv_map[i]);
|
|
else
|
|
free_pages((ulong)fusion->ld_drv_map[i],
|
|
fusion->drv_map_pages);
|
|
}
|
|
|
|
if (fusion->pd_seq_sync[i])
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
pd_seq_map_sz,
|
|
fusion->pd_seq_sync[i],
|
|
fusion->pd_seq_phys[i]);
|
|
}
|
|
} else {
|
|
megasas_release_mfi(instance);
|
|
}
|
|
|
|
if (instance->vf_affiliation)
|
|
dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) *
|
|
sizeof(struct MR_LD_VF_AFFILIATION),
|
|
instance->vf_affiliation,
|
|
instance->vf_affiliation_h);
|
|
|
|
if (instance->vf_affiliation_111)
|
|
dma_free_coherent(&pdev->dev,
|
|
sizeof(struct MR_LD_VF_AFFILIATION_111),
|
|
instance->vf_affiliation_111,
|
|
instance->vf_affiliation_111_h);
|
|
|
|
if (instance->hb_host_mem)
|
|
dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM),
|
|
instance->hb_host_mem,
|
|
instance->hb_host_mem_h);
|
|
|
|
megasas_free_ctrl_dma_buffers(instance);
|
|
|
|
megasas_free_ctrl_mem(instance);
|
|
|
|
megasas_destroy_debugfs(instance);
|
|
|
|
scsi_host_put(host);
|
|
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
/**
|
|
* megasas_shutdown - Shutdown entry point
|
|
* @device: Generic device structure
|
|
*/
|
|
static void megasas_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct megasas_instance *instance = pci_get_drvdata(pdev);
|
|
|
|
if (!instance)
|
|
return;
|
|
|
|
instance->unload = 1;
|
|
|
|
if (megasas_wait_for_adapter_operational(instance))
|
|
goto skip_firing_dcmds;
|
|
|
|
megasas_flush_cache(instance);
|
|
megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
|
|
|
|
skip_firing_dcmds:
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_destroy_irqs(instance);
|
|
megasas_free_irq_vectors(instance);
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_open - char node "open" entry point
|
|
*/
|
|
static int megasas_mgmt_open(struct inode *inode, struct file *filep)
|
|
{
|
|
/*
|
|
* Allow only those users with admin rights
|
|
*/
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EACCES;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_release - char node "release" entry point
|
|
*/
|
|
static int megasas_mgmt_release(struct inode *inode, struct file *filep)
|
|
{
|
|
filep->private_data = NULL;
|
|
fasync_helper(-1, filep, 0, &megasas_async_queue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_fasync - Async notifier registration from applications
|
|
*
|
|
* This function adds the calling process to a driver global queue. When an
|
|
* event occurs, SIGIO will be sent to all processes in this queue.
|
|
*/
|
|
static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
|
|
{
|
|
int rc;
|
|
|
|
mutex_lock(&megasas_async_queue_mutex);
|
|
|
|
rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
|
|
|
|
mutex_unlock(&megasas_async_queue_mutex);
|
|
|
|
if (rc >= 0) {
|
|
/* For sanity check when we get ioctl */
|
|
filep->private_data = filep;
|
|
return 0;
|
|
}
|
|
|
|
printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_poll - char node "poll" entry point
|
|
* */
|
|
static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait)
|
|
{
|
|
unsigned int mask;
|
|
unsigned long flags;
|
|
|
|
poll_wait(file, &megasas_poll_wait, wait);
|
|
spin_lock_irqsave(&poll_aen_lock, flags);
|
|
if (megasas_poll_wait_aen)
|
|
mask = (POLLIN | POLLRDNORM);
|
|
else
|
|
mask = 0;
|
|
megasas_poll_wait_aen = 0;
|
|
spin_unlock_irqrestore(&poll_aen_lock, flags);
|
|
return mask;
|
|
}
|
|
|
|
/*
|
|
* megasas_set_crash_dump_params_ioctl:
|
|
* Send CRASH_DUMP_MODE DCMD to all controllers
|
|
* @cmd: MFI command frame
|
|
*/
|
|
|
|
static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
|
|
{
|
|
struct megasas_instance *local_instance;
|
|
int i, error = 0;
|
|
int crash_support;
|
|
|
|
crash_support = cmd->frame->dcmd.mbox.w[0];
|
|
|
|
for (i = 0; i < megasas_mgmt_info.max_index; i++) {
|
|
local_instance = megasas_mgmt_info.instance[i];
|
|
if (local_instance && local_instance->crash_dump_drv_support) {
|
|
if ((atomic_read(&local_instance->adprecovery) ==
|
|
MEGASAS_HBA_OPERATIONAL) &&
|
|
!megasas_set_crash_dump_params(local_instance,
|
|
crash_support)) {
|
|
local_instance->crash_dump_app_support =
|
|
crash_support;
|
|
dev_info(&local_instance->pdev->dev,
|
|
"Application firmware crash "
|
|
"dump mode set success\n");
|
|
error = 0;
|
|
} else {
|
|
dev_info(&local_instance->pdev->dev,
|
|
"Application firmware crash "
|
|
"dump mode set failed\n");
|
|
error = -1;
|
|
}
|
|
}
|
|
}
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_fw_ioctl - Issues management ioctls to FW
|
|
* @instance: Adapter soft state
|
|
* @argp: User's ioctl packet
|
|
*/
|
|
static int
|
|
megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
|
|
struct megasas_iocpacket __user * user_ioc,
|
|
struct megasas_iocpacket *ioc)
|
|
{
|
|
struct megasas_sge64 *kern_sge64 = NULL;
|
|
struct megasas_sge32 *kern_sge32 = NULL;
|
|
struct megasas_cmd *cmd;
|
|
void *kbuff_arr[MAX_IOCTL_SGE];
|
|
dma_addr_t buf_handle = 0;
|
|
int error = 0, i;
|
|
void *sense = NULL;
|
|
dma_addr_t sense_handle;
|
|
unsigned long *sense_ptr;
|
|
u32 opcode = 0;
|
|
int ret = DCMD_SUCCESS;
|
|
|
|
memset(kbuff_arr, 0, sizeof(kbuff_arr));
|
|
|
|
if (ioc->sge_count > MAX_IOCTL_SGE) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
|
|
ioc->sge_count, MAX_IOCTL_SGE);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
|
|
((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
|
|
!instance->support_nvme_passthru) ||
|
|
((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) &&
|
|
!instance->support_pci_lane_margining)) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Received invalid ioctl command 0x%x\n",
|
|
ioc->frame.hdr.cmd);
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* User's IOCTL packet has 2 frames (maximum). Copy those two
|
|
* frames into our cmd's frames. cmd->frame's context will get
|
|
* overwritten when we copy from user's frames. So set that value
|
|
* alone separately
|
|
*/
|
|
memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
|
|
cmd->frame->hdr.context = cpu_to_le32(cmd->index);
|
|
cmd->frame->hdr.pad_0 = 0;
|
|
|
|
cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
|
|
|
|
if (instance->consistent_mask_64bit)
|
|
cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
|
|
MFI_FRAME_SENSE64));
|
|
else
|
|
cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
|
|
MFI_FRAME_SENSE64));
|
|
|
|
if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
|
|
opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
|
|
|
|
if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
|
|
mutex_lock(&instance->reset_mutex);
|
|
if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
|
|
megasas_return_cmd(instance, cmd);
|
|
mutex_unlock(&instance->reset_mutex);
|
|
return -1;
|
|
}
|
|
mutex_unlock(&instance->reset_mutex);
|
|
}
|
|
|
|
if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
|
|
error = megasas_set_crash_dump_params_ioctl(cmd);
|
|
megasas_return_cmd(instance, cmd);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* The management interface between applications and the fw uses
|
|
* MFI frames. E.g, RAID configuration changes, LD property changes
|
|
* etc are accomplishes through different kinds of MFI frames. The
|
|
* driver needs to care only about substituting user buffers with
|
|
* kernel buffers in SGLs. The location of SGL is embedded in the
|
|
* struct iocpacket itself.
|
|
*/
|
|
if (instance->consistent_mask_64bit)
|
|
kern_sge64 = (struct megasas_sge64 *)
|
|
((unsigned long)cmd->frame + ioc->sgl_off);
|
|
else
|
|
kern_sge32 = (struct megasas_sge32 *)
|
|
((unsigned long)cmd->frame + ioc->sgl_off);
|
|
|
|
/*
|
|
* For each user buffer, create a mirror buffer and copy in
|
|
*/
|
|
for (i = 0; i < ioc->sge_count; i++) {
|
|
if (!ioc->sgl[i].iov_len)
|
|
continue;
|
|
|
|
kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
|
|
ioc->sgl[i].iov_len,
|
|
&buf_handle, GFP_KERNEL);
|
|
if (!kbuff_arr[i]) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
|
|
"kernel SGL buffer for IOCTL\n");
|
|
error = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* We don't change the dma_coherent_mask, so
|
|
* dma_alloc_coherent only returns 32bit addresses
|
|
*/
|
|
if (instance->consistent_mask_64bit) {
|
|
kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
|
|
kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
|
|
} else {
|
|
kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
|
|
kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
|
|
}
|
|
|
|
/*
|
|
* We created a kernel buffer corresponding to the
|
|
* user buffer. Now copy in from the user buffer
|
|
*/
|
|
if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
|
|
(u32) (ioc->sgl[i].iov_len))) {
|
|
error = -EFAULT;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (ioc->sense_len) {
|
|
sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
|
|
&sense_handle, GFP_KERNEL);
|
|
if (!sense) {
|
|
error = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
sense_ptr =
|
|
(unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
|
|
if (instance->consistent_mask_64bit)
|
|
*sense_ptr = cpu_to_le64(sense_handle);
|
|
else
|
|
*sense_ptr = cpu_to_le32(sense_handle);
|
|
}
|
|
|
|
/*
|
|
* Set the sync_cmd flag so that the ISR knows not to complete this
|
|
* cmd to the SCSI mid-layer
|
|
*/
|
|
cmd->sync_cmd = 1;
|
|
|
|
ret = megasas_issue_blocked_cmd(instance, cmd, 0);
|
|
switch (ret) {
|
|
case DCMD_INIT:
|
|
case DCMD_BUSY:
|
|
cmd->sync_cmd = 0;
|
|
dev_err(&instance->pdev->dev,
|
|
"return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
|
|
__func__, __LINE__, cmd->frame->hdr.cmd, opcode, cmd->cmd_status_drv);
|
|
error = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
cmd->sync_cmd = 0;
|
|
|
|
if (instance->unload == 1) {
|
|
dev_info(&instance->pdev->dev, "Driver unload is in progress "
|
|
"don't submit data to application\n");
|
|
goto out;
|
|
}
|
|
/*
|
|
* copy out the kernel buffers to user buffers
|
|
*/
|
|
for (i = 0; i < ioc->sge_count; i++) {
|
|
if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
|
|
ioc->sgl[i].iov_len)) {
|
|
error = -EFAULT;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* copy out the sense
|
|
*/
|
|
if (ioc->sense_len) {
|
|
void __user *uptr;
|
|
/*
|
|
* sense_ptr points to the location that has the user
|
|
* sense buffer address
|
|
*/
|
|
sense_ptr = (void *)ioc->frame.raw + ioc->sense_off;
|
|
#if defined(MEGASAS_COMPAT_IOCTL_SUPPORT) && defined(CONFIG_COMPAT)
|
|
if (in_compat_syscall())
|
|
uptr = compat_ptr(get_unaligned((compat_uptr_t *)
|
|
sense_ptr));
|
|
else
|
|
uptr = get_unaligned((void __user **)sense_ptr);
|
|
|
|
#else
|
|
uptr = get_unaligned((void __user **)sense_ptr);
|
|
#endif
|
|
|
|
if (copy_to_user(uptr, sense, ioc->sense_len)) {
|
|
dev_err(&instance->pdev->dev, "Failed to copy out to user "
|
|
"sense data\n");
|
|
error = -EFAULT;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* copy the status codes returned by the fw
|
|
*/
|
|
if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
|
|
&cmd->frame->hdr.cmd_status, sizeof(u8))) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
|
|
error = -EFAULT;
|
|
}
|
|
|
|
if (copy_to_user(&user_ioc->frame.hdr.scsi_status,
|
|
&cmd->frame->hdr.scsi_status, sizeof(u8))) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out scsi_status\n");
|
|
error = -EFAULT;
|
|
}
|
|
out:
|
|
if (sense) {
|
|
dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
|
|
sense, sense_handle);
|
|
}
|
|
|
|
for (i = 0; i < ioc->sge_count; i++) {
|
|
if (kbuff_arr[i]) {
|
|
if (instance->consistent_mask_64bit)
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
le32_to_cpu(kern_sge64[i].length),
|
|
kbuff_arr[i],
|
|
le64_to_cpu(kern_sge64[i].phys_addr));
|
|
else
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
le32_to_cpu(kern_sge32[i].length),
|
|
kbuff_arr[i],
|
|
le32_to_cpu(kern_sge32[i].phys_addr));
|
|
kbuff_arr[i] = NULL;
|
|
}
|
|
}
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
return error;
|
|
}
|
|
|
|
#if defined(MEGASAS_COMPAT_IOCTL_SUPPORT) && defined(CONFIG_COMPAT)
|
|
static struct megasas_iocpacket *
|
|
megasas_compat_iocpacket_get_user(void __user *arg)
|
|
{
|
|
struct megasas_iocpacket *ioc;
|
|
struct compat_megasas_iocpacket __user *cioc = arg;
|
|
size_t size;
|
|
int err = -EFAULT;
|
|
int i;
|
|
|
|
ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
|
|
if (!ioc)
|
|
return ERR_PTR(-ENOMEM);
|
|
size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame);
|
|
if (copy_from_user(ioc, arg, size))
|
|
goto out;
|
|
|
|
for (i = 0; i < MAX_IOCTL_SGE; i++) {
|
|
compat_uptr_t iov_base;
|
|
|
|
if (get_user(iov_base, &cioc->sgl[i].iov_base) ||
|
|
get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len))
|
|
goto out;
|
|
|
|
ioc->sgl[i].iov_base = compat_ptr(iov_base);
|
|
}
|
|
|
|
return ioc;
|
|
out:
|
|
kfree(ioc);
|
|
return ERR_PTR(err);
|
|
}
|
|
#endif
|
|
static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
|
|
{
|
|
struct megasas_iocpacket __user *user_ioc =
|
|
(struct megasas_iocpacket __user *)arg;
|
|
struct megasas_iocpacket *ioc;
|
|
struct megasas_instance *instance;
|
|
int error;
|
|
|
|
#if defined(MEGASAS_COMPAT_IOCTL_SUPPORT) && defined(CONFIG_COMPAT)
|
|
if (in_compat_syscall())
|
|
ioc = megasas_compat_iocpacket_get_user(user_ioc);
|
|
else
|
|
ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket));
|
|
#else
|
|
ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket));
|
|
#endif
|
|
if (IS_ERR(ioc))
|
|
return PTR_ERR(ioc);
|
|
|
|
instance = megasas_lookup_instance(ioc->host_no);
|
|
if (!instance) {
|
|
error = -ENODEV;
|
|
goto out_kfree_ioc;
|
|
}
|
|
|
|
/* Block ioctls in VF mode */
|
|
if (instance->requestorId && !allow_vf_ioctls) {
|
|
error = -ENODEV;
|
|
goto out_kfree_ioc;
|
|
}
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_err(&instance->pdev->dev, "Controller in crit error\n");
|
|
error = -ENODEV;
|
|
goto out_kfree_ioc;
|
|
}
|
|
|
|
if (instance->unload == 1) {
|
|
error = -ENODEV;
|
|
goto out_kfree_ioc;
|
|
}
|
|
|
|
if (down_interruptible(&instance->ioctl_sem)) {
|
|
error = -ERESTARTSYS;
|
|
goto out_kfree_ioc;
|
|
}
|
|
|
|
if (megasas_wait_for_adapter_operational(instance)) {
|
|
error = -ENODEV;
|
|
goto out_up;
|
|
}
|
|
|
|
error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
|
|
out_up:
|
|
up(&instance->ioctl_sem);
|
|
|
|
out_kfree_ioc:
|
|
kfree(ioc);
|
|
return error;
|
|
}
|
|
|
|
static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
|
|
{
|
|
struct megasas_instance *instance;
|
|
struct megasas_aen aen;
|
|
int error;
|
|
|
|
if (file->private_data != file) {
|
|
printk(KERN_DEBUG "megasas: fasync_helper was not "
|
|
"called first\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
|
|
return -EFAULT;
|
|
|
|
instance = megasas_lookup_instance(aen.host_no);
|
|
|
|
if (!instance)
|
|
return -ENODEV;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (instance->unload == 1) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (megasas_wait_for_adapter_operational(instance))
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
error = megasas_register_aen(instance, aen.seq_num,
|
|
aen.class_locale_word);
|
|
mutex_unlock(&instance->reset_mutex);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* megasas_mgmt_ioctl - char node ioctl entry point
|
|
*/
|
|
static long
|
|
megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
switch (cmd) {
|
|
case MEGASAS_IOC_FIRMWARE:
|
|
return megasas_mgmt_ioctl_fw(file, arg);
|
|
|
|
case MEGASAS_IOC_GET_AEN:
|
|
return megasas_mgmt_ioctl_aen(file, arg);
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
|
|
#if defined(MEGASAS_COMPAT_IOCTL_SUPPORT) && defined(CONFIG_COMPAT)
|
|
static long
|
|
megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
switch (cmd) {
|
|
case MEGASAS_IOC_FIRMWARE32:
|
|
return megasas_mgmt_ioctl_fw(file, arg);
|
|
case MEGASAS_IOC_GET_AEN:
|
|
return megasas_mgmt_ioctl_aen(file, arg);
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* File operations structure for management interface
|
|
*/
|
|
static const struct file_operations megasas_mgmt_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = megasas_mgmt_open,
|
|
.release = megasas_mgmt_release,
|
|
.fasync = megasas_mgmt_fasync,
|
|
.unlocked_ioctl = megasas_mgmt_ioctl,
|
|
.poll = megasas_mgmt_poll,
|
|
#if defined(MEGASAS_COMPAT_IOCTL_SUPPORT) && defined(CONFIG_COMPAT)
|
|
.compat_ioctl = megasas_mgmt_compat_ioctl,
|
|
#endif
|
|
.llseek = noop_llseek,
|
|
};
|
|
|
|
/*
|
|
* PCI hotplug support registration structure
|
|
*/
|
|
static struct pci_driver megasas_pci_driver = {
|
|
|
|
.name = "megaraid_sas",
|
|
.id_table = megasas_pci_table,
|
|
.probe = megasas_probe_one,
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,10))
|
|
.remove = __devexit_p(megasas_detach_one),
|
|
#else
|
|
.remove = megasas_detach_one,
|
|
#endif
|
|
.suspend = megasas_suspend,
|
|
.resume = megasas_resume,
|
|
.shutdown = megasas_shutdown,
|
|
};
|
|
|
|
/*
|
|
* Sysfs driver attributes
|
|
*/
|
|
static ssize_t version_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
|
|
MEGASAS_VERSION);
|
|
}
|
|
|
|
static ssize_t release_date_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
|
|
MEGASAS_RELDATE);
|
|
}
|
|
|
|
static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return sprintf(buf, "%u\n", support_poll_for_event);
|
|
}
|
|
|
|
static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return sprintf(buf, "%u\n", support_device_change);
|
|
}
|
|
|
|
static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return sprintf(buf, "%u\n", megasas_dbg_lvl);
|
|
}
|
|
|
|
static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
|
|
size_t count)
|
|
{
|
|
int retval = count;
|
|
|
|
if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
|
|
printk(KERN_ERR "megasas: could not set dbg_lvl\n");
|
|
retval = -EINVAL;
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static ssize_t
|
|
support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return sprintf(buf, "%u\n", support_nvme_encapsulation);
|
|
}
|
|
|
|
static ssize_t
|
|
support_pci_lane_margining_show(struct device_driver *dd, char *buf)
|
|
{
|
|
return sprintf(buf, "%u\n", support_pci_lane_margining);
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
|
|
static DRIVER_ATTR_RO(version);
|
|
static DRIVER_ATTR_RO(release_date);
|
|
static DRIVER_ATTR_RO(support_poll_for_event);
|
|
static DRIVER_ATTR_RO(support_device_change);
|
|
static DRIVER_ATTR_RW(dbg_lvl);
|
|
static DRIVER_ATTR_RO(support_nvme_encapsulation);
|
|
static DRIVER_ATTR_RO(support_pci_lane_margining);
|
|
#else
|
|
static DRIVER_ATTR(version, S_IRUGO, version_show, NULL);
|
|
static DRIVER_ATTR(release_date, S_IRUGO, release_date_show, NULL);
|
|
static DRIVER_ATTR(support_poll_for_event, S_IRUGO,
|
|
support_poll_for_event_show, NULL);
|
|
static DRIVER_ATTR(support_device_change, S_IRUGO,
|
|
support_device_change_show, NULL);
|
|
static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, dbg_lvl_show, dbg_lvl_store);
|
|
static DRIVER_ATTR(support_nvme_encapsulation, S_IRUGO,
|
|
support_nvme_encapsulation_show, NULL);
|
|
static DRIVER_ATTR(support_pci_lane_margining, S_IRUGO,
|
|
support_pci_lane_margining_show, NULL);
|
|
|
|
#endif
|
|
|
|
static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
|
|
{
|
|
sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
|
|
scsi_remove_device(sdev);
|
|
scsi_device_put(sdev);
|
|
}
|
|
|
|
/**
|
|
* megasas_update_device_list - Update the PD and LD device list from FW
|
|
* after an AEN event notification
|
|
* @instance: Adapter soft state
|
|
* @event_type: Indicates type of event (PD or LD event)
|
|
*
|
|
* @return: Success or failure
|
|
*
|
|
* Issue DCMDs to Firmware to update the internal device list in driver.
|
|
* Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
|
|
* of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
|
|
*/
|
|
static
|
|
int megasas_update_device_list(struct megasas_instance *instance,
|
|
int event_type)
|
|
{
|
|
int dcmd_ret = DCMD_SUCCESS;
|
|
|
|
if (instance->enable_fw_dev_list) {
|
|
dcmd_ret = megasas_host_device_list_query(instance, false);
|
|
if (dcmd_ret != DCMD_SUCCESS)
|
|
goto out;
|
|
} else {
|
|
if (event_type & SCAN_PD_CHANNEL) {
|
|
dcmd_ret = megasas_get_pd_list(instance);
|
|
|
|
if (dcmd_ret != DCMD_SUCCESS)
|
|
goto out;
|
|
}
|
|
|
|
if (event_type & SCAN_VD_CHANNEL) {
|
|
if (!instance->requestorId ||
|
|
(instance->requestorId &&
|
|
megasas_get_ld_vf_affiliation(instance, 0))) {
|
|
dcmd_ret = megasas_ld_list_query(instance,
|
|
MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
|
|
if (dcmd_ret != DCMD_SUCCESS)
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
return dcmd_ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_add_remove_devices - Add/remove devices to SCSI mid-layer
|
|
* after an AEN event notification
|
|
* @instance: Adapter soft state
|
|
* @scan_type: Indicates type of devices (PD/LD) to add
|
|
* @return void
|
|
*/
|
|
static
|
|
void megasas_add_remove_devices(struct megasas_instance *instance,
|
|
int scan_type)
|
|
{
|
|
int i, j;
|
|
u16 pd_index = 0;
|
|
u16 ld_index = 0;
|
|
u16 channel = 0, id = 0;
|
|
struct Scsi_Host *host;
|
|
struct scsi_device *sdev1;
|
|
struct MR_HOST_DEVICE_LIST *targetid_list = NULL;
|
|
struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL;
|
|
|
|
host = instance->host;
|
|
|
|
if (instance->enable_fw_dev_list) {
|
|
targetid_list = instance->host_device_list_buf;
|
|
for (i = 0; i < targetid_list->count; i++) {
|
|
targetid_entry = &targetid_list->host_device_list[i];
|
|
if (targetid_entry->flags.u.bits.is_sys_pd) {
|
|
channel = le16_to_cpu(targetid_entry->target_id) /
|
|
MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
id = le16_to_cpu(targetid_entry->target_id) %
|
|
MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
} else {
|
|
channel = MEGASAS_MAX_PD_CHANNELS +
|
|
(le16_to_cpu(targetid_entry->target_id) /
|
|
MEGASAS_MAX_DEV_PER_CHANNEL);
|
|
id = le16_to_cpu(targetid_entry->target_id) %
|
|
MEGASAS_MAX_DEV_PER_CHANNEL;
|
|
}
|
|
sdev1 = scsi_device_lookup(host, channel, id, 0);
|
|
if (!sdev1) {
|
|
scsi_add_device(host, channel, id, 0);
|
|
} else {
|
|
scsi_device_put(sdev1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (scan_type & SCAN_PD_CHANNEL) {
|
|
for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
|
|
for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
|
|
pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j;
|
|
sdev1 = scsi_device_lookup(host, i, j, 0);
|
|
if (instance->pd_list[pd_index].driveState ==
|
|
MR_PD_STATE_SYSTEM) {
|
|
if (!sdev1)
|
|
scsi_add_device(host, i, j, 0);
|
|
else
|
|
scsi_device_put(sdev1);
|
|
} else {
|
|
if (sdev1)
|
|
megasas_remove_scsi_device(sdev1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (scan_type & SCAN_VD_CHANNEL) {
|
|
for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
|
|
for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
|
|
ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
|
|
sdev1 = scsi_device_lookup(host,
|
|
MEGASAS_MAX_PD_CHANNELS + i, j, 0);
|
|
if (instance->ld_ids[ld_index] != 0xff) {
|
|
if (!sdev1)
|
|
scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
|
|
else
|
|
scsi_device_put(sdev1);
|
|
} else {
|
|
if (sdev1)
|
|
megasas_remove_scsi_device(sdev1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
megasas_aen_polling(struct work_struct *work)
|
|
{
|
|
struct megasas_aen_event *ev =
|
|
container_of(work, struct megasas_aen_event, hotplug_work.work);
|
|
struct megasas_instance *instance = ev->instance;
|
|
union megasas_evt_class_locale class_locale;
|
|
int event_type = 0;
|
|
u32 seq_num;
|
|
u16 ld_target_id;
|
|
int error;
|
|
u8 dcmd_ret = DCMD_SUCCESS;
|
|
struct scsi_device *sdev1;
|
|
|
|
if (!instance) {
|
|
printk(KERN_ERR "invalid instance!\n");
|
|
kfree(ev);
|
|
return;
|
|
}
|
|
|
|
/* Don't run the event workqueue thread if OCR is running */
|
|
mutex_lock(&instance->reset_mutex);
|
|
|
|
instance->ev = NULL;
|
|
if (instance->evt_detail) {
|
|
megasas_decode_evt(instance);
|
|
|
|
switch (le32_to_cpu(instance->evt_detail->code)) {
|
|
|
|
case MR_EVT_PD_INSERTED:
|
|
case MR_EVT_PD_REMOVED:
|
|
event_type = SCAN_PD_CHANNEL;
|
|
break;
|
|
|
|
case MR_EVT_LD_OFFLINE:
|
|
case MR_EVT_LD_DELETED:
|
|
ld_target_id = instance->evt_detail->args.ld.target_id;
|
|
sdev1 = scsi_device_lookup(instance->host,
|
|
MEGASAS_MAX_PD_CHANNELS +
|
|
(ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL),
|
|
(ld_target_id - MEGASAS_MAX_DEV_PER_CHANNEL), 0);
|
|
if (sdev1)
|
|
megasas_remove_scsi_device(sdev1);
|
|
|
|
event_type = SCAN_VD_CHANNEL;
|
|
break;
|
|
case MR_EVT_LD_CREATED:
|
|
event_type = SCAN_VD_CHANNEL;
|
|
break;
|
|
|
|
case MR_EVT_CFG_CLEARED:
|
|
case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
|
|
case MR_EVT_FOREIGN_CFG_IMPORTED:
|
|
case MR_EVT_LD_STATE_CHANGE:
|
|
event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL;
|
|
dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
|
|
instance->host->host_no);
|
|
break;
|
|
|
|
case MR_EVT_CTRL_PROP_CHANGED:
|
|
dcmd_ret = megasas_get_ctrl_info(instance);
|
|
if (dcmd_ret == DCMD_SUCCESS && instance->snapdump_wait_time) {
|
|
megasas_get_snapdump_properties(instance);
|
|
dev_info(&instance->pdev->dev,
|
|
"Snap dump wait time\t: %d\n",
|
|
instance->snapdump_wait_time);
|
|
}
|
|
break;
|
|
default:
|
|
event_type = 0;
|
|
break;
|
|
}
|
|
} else {
|
|
dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
|
|
mutex_unlock(&instance->reset_mutex);
|
|
kfree(ev);
|
|
return;
|
|
}
|
|
|
|
if (event_type)
|
|
dcmd_ret = megasas_update_device_list(instance, event_type);
|
|
|
|
mutex_unlock(&instance->reset_mutex);
|
|
|
|
if (event_type && dcmd_ret == DCMD_SUCCESS)
|
|
megasas_add_remove_devices(instance, event_type);
|
|
|
|
if (dcmd_ret == DCMD_SUCCESS)
|
|
seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
|
|
else
|
|
seq_num = instance->last_seq_num;
|
|
|
|
/* Register AEN with FW for latest sequence number plus 1 */
|
|
class_locale.members.reserved = 0;
|
|
class_locale.members.locale = MR_EVT_LOCALE_ALL;
|
|
class_locale.members.class = MR_EVT_CLASS_DEBUG;
|
|
|
|
if (instance->aen_cmd != NULL) {
|
|
kfree(ev);
|
|
return;
|
|
}
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
error = megasas_register_aen(instance, seq_num,
|
|
class_locale.word);
|
|
if (error)
|
|
dev_err(&instance->pdev->dev,
|
|
"register aen failed error %x\n", error);
|
|
|
|
mutex_unlock(&instance->reset_mutex);
|
|
kfree(ev);
|
|
}
|
|
|
|
/**
|
|
* megasas_init - Driver load entry point
|
|
*/
|
|
static int __init megasas_init(void)
|
|
{
|
|
int rval;
|
|
|
|
/*
|
|
* Booted in kdump kernel, minimize memory footprints by
|
|
* disabling few features
|
|
*/
|
|
if (reset_devices) {
|
|
msix_vectors = 1;
|
|
rdpq_enable = 0;
|
|
crashdump_enable = 0;
|
|
dual_qdepth_disable = 1;
|
|
poll_queues = 0;
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,12,0))
|
|
poll_queues = 0;
|
|
#endif
|
|
|
|
#if defined(HOST_TAGSET_SUPPORT)
|
|
if (!host_tagset_enable)
|
|
poll_queues = 0;
|
|
#endif
|
|
/*
|
|
* Announce driver version and other information
|
|
*/
|
|
pr_info("megasas: %s\n", MEGASAS_VERSION);
|
|
|
|
spin_lock_init(&poll_aen_lock);
|
|
|
|
support_poll_for_event = 2;
|
|
support_device_change = 1;
|
|
support_nvme_encapsulation = true;
|
|
support_pci_lane_margining = true;
|
|
|
|
memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
|
|
|
|
/*
|
|
* Register character device node
|
|
*/
|
|
rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
|
|
|
|
if (rval < 0) {
|
|
printk(KERN_DEBUG "megasas: failed to open device node\n");
|
|
return rval;
|
|
}
|
|
|
|
megasas_mgmt_majorno = rval;
|
|
|
|
megasas_init_debugfs();
|
|
|
|
/*
|
|
* Register ourselves as PCI hotplug module
|
|
*/
|
|
rval = pci_register_driver(&megasas_pci_driver);
|
|
|
|
if (rval) {
|
|
printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
|
|
goto err_pcidrv;
|
|
}
|
|
|
|
if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
|
|
(event_log_level > MFI_EVT_CLASS_DEAD)) {
|
|
pr_warn("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;
|
|
}
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_version);
|
|
if (rval)
|
|
goto err_dcf_attr_ver;
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_release_date);
|
|
if (rval)
|
|
goto err_dcf_rel_date;
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_poll_for_event);
|
|
if (rval)
|
|
goto err_dcf_support_poll_for_event;
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_dbg_lvl);
|
|
if (rval)
|
|
goto err_dcf_dbg_lvl;
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_device_change);
|
|
if (rval)
|
|
goto err_dcf_support_device_change;
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_nvme_encapsulation);
|
|
if (rval)
|
|
goto err_dcf_support_nvme_encapsulation;
|
|
|
|
rval = driver_create_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_pci_lane_margining);
|
|
if (rval)
|
|
goto err_dcf_support_pci_lane_margining;
|
|
return rval;
|
|
|
|
err_dcf_support_pci_lane_margining:
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_nvme_encapsulation);
|
|
|
|
err_dcf_support_nvme_encapsulation:
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_device_change);
|
|
|
|
err_dcf_support_device_change:
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_dbg_lvl);
|
|
err_dcf_dbg_lvl:
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_poll_for_event);
|
|
err_dcf_support_poll_for_event:
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_release_date);
|
|
err_dcf_rel_date:
|
|
driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
|
|
err_dcf_attr_ver:
|
|
pci_unregister_driver(&megasas_pci_driver);
|
|
err_pcidrv:
|
|
megasas_exit_debugfs();
|
|
unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* megasas_exit - Driver unload entry point
|
|
*/
|
|
static void __exit megasas_exit(void)
|
|
{
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_dbg_lvl);
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_poll_for_event);
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_device_change);
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_release_date);
|
|
driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_nvme_encapsulation);
|
|
driver_remove_file(&megasas_pci_driver.driver,
|
|
&driver_attr_support_pci_lane_margining);
|
|
|
|
pci_unregister_driver(&megasas_pci_driver);
|
|
megasas_exit_debugfs();
|
|
unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
|
|
}
|
|
|
|
module_init(megasas_init);
|
|
module_exit(megasas_exit);
|