From patchwork Tue Oct 9 15:27:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 10632877 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4ED7313BB for ; Tue, 9 Oct 2018 15:27:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C6022888B for ; Tue, 9 Oct 2018 15:27:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1D6D928FA2; Tue, 9 Oct 2018 15:27:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 416882888B for ; Tue, 9 Oct 2018 15:27:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726476AbeJIWop (ORCPT ); Tue, 9 Oct 2018 18:44:45 -0400 Received: from mx2.suse.de ([195.135.220.15]:45318 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726492AbeJIWop (ORCPT ); Tue, 9 Oct 2018 18:44:45 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 9EC55ABEF; Tue, 9 Oct 2018 15:27:02 +0000 (UTC) From: Hannes Reinecke To: Jens Axboe Cc: "Martin K. Petersen" , James Bottomley , Christoph Hellwig , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, Hannes Reinecke , Hannes Reinecke Subject: [PATCH 2/3] myrs: Add Mylex RAID controller (SCSI interface) Date: Tue, 9 Oct 2018 17:27:00 +0200 Message-Id: <20181009152701.5542-3-hare@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20181009152701.5542-1-hare@suse.de> References: <20181009152701.5542-1-hare@suse.de> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support for the Mylex DAC960 RAID controller, supporting the newer, SCSI-based interface. The driver is a re-implementation of the original DAC960 driver. Signed-off-by: Hannes Reinecke --- drivers/scsi/Kconfig | 15 + drivers/scsi/Makefile | 1 + drivers/scsi/myrs.c | 3423 +++++++++++++++++++++++++++++++++++++++++++++++++ drivers/scsi/myrs.h | 1141 +++++++++++++++++ 4 files changed, 4580 insertions(+) create mode 100644 drivers/scsi/myrs.c create mode 100644 drivers/scsi/myrs.h diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index f2a71bb74f48..c1d3d0d45ced 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -572,6 +572,21 @@ config SCSI_MYRB To compile this driver as a module, choose M here: the module will be called myrb. +config SCSI_MYRS + tristate "Mylex DAC960/DAC1100 PCI RAID Controller (SCSI Interface)" + depends on PCI + select RAID_ATTRS + help + This driver adds support for the Mylex DAC960, AcceleRAID, and + eXtremeRAID PCI RAID controllers. This driver supports the + newer, SCSI-based interface only. + This driver is a reimplementation of the original DAC960 + driver. If you have used the DAC960 driver you should enable + this module. + + To compile this driver as a module, choose M here: the + module will be called myrs. + config VMWARE_PVSCSI tristate "VMware PVSCSI driver support" depends on PCI && SCSI && X86 diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index cfd58ffc0b61..fcb41ae329c4 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -107,6 +107,7 @@ obj-$(CONFIG_SCSI_QLOGICPTI) += qlogicpti.o obj-$(CONFIG_SCSI_MESH) += mesh.o obj-$(CONFIG_SCSI_MAC53C94) += mac53c94.o obj-$(CONFIG_SCSI_MYRB) += myrb.o +obj-$(CONFIG_SCSI_MYRS) += myrs.o obj-$(CONFIG_BLK_DEV_3W_XXXX_RAID) += 3w-xxxx.o obj-$(CONFIG_SCSI_3W_9XXX) += 3w-9xxx.o obj-$(CONFIG_SCSI_3W_SAS) += 3w-sas.o diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c new file mode 100644 index 000000000000..bf8beccddfb8 --- /dev/null +++ b/drivers/scsi/myrs.c @@ -0,0 +1,3423 @@ +/* + * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers + * + * This driver supports the newer, SCSI-based firmware interface only. + * + * Copyright 2017 Hannes Reinecke, SUSE Linux GmbH + * + * Based on the original DAC960 driver, which has + * Copyright 1998-2001 by Leonard N. Zubkoff + * Portions Copyright 2002 by Mylex (An IBM Business Unit) + * + * This program is free software; you may redistribute and/or modify it under + * the terms of the GNU General Public License Version 2 as published by the + * Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for complete details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "myrs.h" + +static struct raid_template *myrs_raid_template; + +static struct myrs_devstate_name_entry { + enum myrs_devstate state; + char *name; +} myrs_devstate_name_list[] = { + { DAC960_V2_Device_Unconfigured, "Unconfigured" }, + { DAC960_V2_Device_Online, "Online" }, + { DAC960_V2_Device_Rebuild, "Rebuild" }, + { DAC960_V2_Device_Missing, "Missing" }, + { DAC960_V2_Device_SuspectedCritical, "SuspectedCritical" }, + { DAC960_V2_Device_Offline, "Offline" }, + { DAC960_V2_Device_Critical, "Critical" }, + { DAC960_V2_Device_SuspectedDead, "SuspectedDead" }, + { DAC960_V2_Device_CommandedOffline, "CommandedOffline" }, + { DAC960_V2_Device_Standby, "Standby" }, + { DAC960_V2_Device_InvalidState, NULL }, +}; + +static char *myrs_devstate_name(enum myrs_devstate state) +{ + struct myrs_devstate_name_entry *entry = myrs_devstate_name_list; + + while (entry && entry->name) { + if (entry->state == state) + return entry->name; + entry++; + } + return NULL; +} + +static struct myrs_raid_level_name_entry { + enum myrs_raid_level level; + char *name; +} myrs_raid_level_name_list[] = { + { DAC960_V2_RAID_Level0, "RAID0" }, + { DAC960_V2_RAID_Level1, "RAID1" }, + { DAC960_V2_RAID_Level3, "RAID3 right asymmetric parity" }, + { DAC960_V2_RAID_Level5, "RAID5 right asymmetric parity" }, + { DAC960_V2_RAID_Level6, "RAID6" }, + { DAC960_V2_RAID_JBOD, "JBOD" }, + { DAC960_V2_RAID_NewSpan, "New Mylex SPAN" }, + { DAC960_V2_RAID_Level3F, "RAID3 fixed parity" }, + { DAC960_V2_RAID_Level3L, "RAID3 left symmetric parity" }, + { DAC960_V2_RAID_Span, "Mylex SPAN" }, + { DAC960_V2_RAID_Level5L, "RAID5 left symmetric parity" }, + { DAC960_V2_RAID_LevelE, "RAIDE (concatenation)" }, + { DAC960_V2_RAID_Physical, "Physical device" }, + { 0xff, NULL } +}; + +static char *myrs_raid_level_name(enum myrs_raid_level level) +{ + struct myrs_raid_level_name_entry *entry = myrs_raid_level_name_list; + + while (entry && entry->name) { + if (entry->level == level) + return entry->name; + entry++; + } + return NULL; +} + +/** + * myrs_reset_cmd - clears critical fields in struct myrs_cmdblk + */ +static inline void myrs_reset_cmd(struct myrs_cmdblk *cmd_blk) +{ + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + + memset(mbox, 0, sizeof(union myrs_cmd_mbox)); + cmd_blk->status = 0; +} + +/** + * myrs_qcmd - queues Command for DAC960 V2 Series Controllers. + */ +static void myrs_qcmd(struct myrs_hba *cs, struct myrs_cmdblk *cmd_blk) +{ + void __iomem *base = cs->io_base; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + union myrs_cmd_mbox *next_mbox = cs->next_cmd_mbox; + + cs->write_cmd_mbox(next_mbox, mbox); + + if (cs->prev_cmd_mbox1->Words[0] == 0 || + cs->prev_cmd_mbox2->Words[0] == 0) + cs->get_cmd_mbox(base); + + cs->prev_cmd_mbox2 = cs->prev_cmd_mbox1; + cs->prev_cmd_mbox1 = next_mbox; + + if (++next_mbox > cs->last_cmd_mbox) + next_mbox = cs->first_cmd_mbox; + + cs->next_cmd_mbox = next_mbox; +} + +/** + * myrs_exec_cmd - executes V2 Command and waits for completion. + */ +static void myrs_exec_cmd(struct myrs_hba *cs, + struct myrs_cmdblk *cmd_blk) +{ + DECLARE_COMPLETION_ONSTACK(complete); + unsigned long flags; + + cmd_blk->complete = &complete; + spin_lock_irqsave(&cs->queue_lock, flags); + myrs_qcmd(cs, cmd_blk); + spin_unlock_irqrestore(&cs->queue_lock, flags); + + if (in_interrupt()) + return; + wait_for_completion(&complete); +} + +/** + * myrs_report_progress - prints progress message + */ +static void +myrs_report_progress(struct myrs_hba *cs, unsigned short ldev_num, + unsigned char *msg, unsigned long blocks, + unsigned long size) +{ + shost_printk(KERN_INFO, cs->host, + "Logical Drive %d: %s in Progress: %d%% completed\n", + ldev_num, msg, + (100 * (int)(blocks >> 7)) / (int)(size >> 7)); +} + +/** + * myrs_get_ctlr_info - executes a Controller Information IOCTL Command + */ +static unsigned char +myrs_get_ctlr_info(struct myrs_hba *cs) +{ + struct myrs_cmdblk *cmd_blk = &cs->dcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + dma_addr_t ctlr_info_addr; + union myrs_sgl *sgl; + unsigned char status; + struct myrs_ctlr_info old; + + memcpy(&old, cs->ctlr_info, sizeof(struct myrs_ctlr_info)); + ctlr_info_addr = dma_map_single(&cs->pdev->dev, cs->ctlr_info, + sizeof(struct myrs_ctlr_info), + DMA_FROM_DEVICE); + if (dma_mapping_error(&cs->pdev->dev, ctlr_info_addr)) + return DAC960_V2_AbnormalCompletion; + + mutex_lock(&cs->dcmd_mutex); + myrs_reset_cmd(cmd_blk); + mbox->ControllerInfo.id = MYRS_DCMD_TAG; + mbox->ControllerInfo.opcode = DAC960_V2_IOCTL; + mbox->ControllerInfo.control.dma_ctrl_to_host = true; + mbox->ControllerInfo.control.no_autosense = true; + mbox->ControllerInfo.dma_size = sizeof(struct myrs_ctlr_info); + mbox->ControllerInfo.ctlr_num = 0; + mbox->ControllerInfo.ioctl_opcode = DAC960_V2_GetControllerInfo; + sgl = &mbox->ControllerInfo.dma_addr; + sgl->sge[0].sge_addr = ctlr_info_addr; + sgl->sge[0].sge_count = mbox->ControllerInfo.dma_size; + dev_dbg(&cs->host->shost_gendev, "Sending GetControllerInfo\n"); + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + dma_unmap_single(&cs->pdev->dev, ctlr_info_addr, + sizeof(struct myrs_ctlr_info), DMA_FROM_DEVICE); + if (status == DAC960_V2_NormalCompletion) { + if (cs->ctlr_info->bg_init_active + + cs->ctlr_info->ldev_init_active + + cs->ctlr_info->pdev_init_active + + cs->ctlr_info->cc_active + + cs->ctlr_info->rbld_active + + cs->ctlr_info->exp_active != 0) + cs->needs_update = true; + if (cs->ctlr_info->ldev_present != old.ldev_present || + cs->ctlr_info->ldev_critical != old.ldev_critical || + cs->ctlr_info->ldev_offline != old.ldev_offline) + shost_printk(KERN_INFO, cs->host, + "Logical drive count changes (%d/%d/%d)\n", + cs->ctlr_info->ldev_critical, + cs->ctlr_info->ldev_offline, + cs->ctlr_info->ldev_present); + } + + return status; +} + +/** + * myrs_get_ldev_info - executes a Logical Device Information IOCTL Command + */ +static unsigned char +myrs_get_ldev_info(struct myrs_hba *cs, unsigned short ldev_num, + struct myrs_ldev_info *ldev_info) +{ + struct myrs_cmdblk *cmd_blk = &cs->dcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + dma_addr_t ldev_info_addr; + struct myrs_ldev_info ldev_info_orig; + union myrs_sgl *sgl; + unsigned char status; + + memcpy(&ldev_info_orig, ldev_info, sizeof(struct myrs_ldev_info)); + ldev_info_addr = dma_map_single(&cs->pdev->dev, ldev_info, + sizeof(struct myrs_ldev_info), + DMA_FROM_DEVICE); + if (dma_mapping_error(&cs->pdev->dev, ldev_info_addr)) + return DAC960_V2_AbnormalCompletion; + + mutex_lock(&cs->dcmd_mutex); + myrs_reset_cmd(cmd_blk); + mbox->LogicalDeviceInfo.id = MYRS_DCMD_TAG; + mbox->LogicalDeviceInfo.opcode = DAC960_V2_IOCTL; + mbox->LogicalDeviceInfo.control.dma_ctrl_to_host = true; + mbox->LogicalDeviceInfo.control.no_autosense = true; + mbox->LogicalDeviceInfo.dma_size = sizeof(struct myrs_ldev_info); + mbox->LogicalDeviceInfo.ldev.ldev_num = ldev_num; + mbox->LogicalDeviceInfo.ioctl_opcode = + DAC960_V2_GetLogicalDeviceInfoValid; + sgl = &mbox->LogicalDeviceInfo.dma_addr; + sgl->sge[0].sge_addr = ldev_info_addr; + sgl->sge[0].sge_count = mbox->LogicalDeviceInfo.dma_size; + dev_dbg(&cs->host->shost_gendev, + "Sending GetLogicalDeviceInfoValid for ldev %d\n", ldev_num); + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + dma_unmap_single(&cs->pdev->dev, ldev_info_addr, + sizeof(struct myrs_ldev_info), DMA_FROM_DEVICE); + if (status == DAC960_V2_NormalCompletion) { + unsigned short ldev_num = ldev_info->ldev_num; + struct myrs_ldev_info *new = ldev_info; + struct myrs_ldev_info *old = &ldev_info_orig; + unsigned long ldev_size = new->cfg_devsize; + + if (new->dev_state != old->dev_state) { + const char *name; + + name = myrs_devstate_name(new->dev_state); + shost_printk(KERN_INFO, cs->host, + "Logical Drive %d is now %s\n", + ldev_num, name ? name : "Invalid"); + } + if ((new->soft_errs != old->soft_errs) || + (new->cmds_failed != old->cmds_failed) || + (new->deferred_write_errs != old->deferred_write_errs)) + shost_printk(KERN_INFO, cs->host, + "Logical Drive %d Errors: " + "Soft = %d, Failed = %d, Deferred Write = %d\n", + ldev_num, new->soft_errs, + new->cmds_failed, + new->deferred_write_errs); + if (new->bg_init_active) + myrs_report_progress(cs, ldev_num, + "Background Initialization", + new->bg_init_lba, ldev_size); + else if (new->fg_init_active) + myrs_report_progress(cs, ldev_num, + "Foreground Initialization", + new->fg_init_lba, ldev_size); + else if (new->migration_active) + myrs_report_progress(cs, ldev_num, + "Data Migration", + new->migration_lba, ldev_size); + else if (new->patrol_active) + myrs_report_progress(cs, ldev_num, + "Patrol Operation", + new->patrol_lba, ldev_size); + if (old->bg_init_active && !new->bg_init_active) + shost_printk(KERN_INFO, cs->host, + "Logical Drive %d: " + "Background Initialization %s\n", + ldev_num, + (new->ldev_control.ldev_init_done ? + "Completed" : "Failed")); + } + return status; +} + +/** + * myrs_get_pdev_info - executes a "Read Physical Device Information" Command + */ +static unsigned char +myrs_get_pdev_info(struct myrs_hba *cs, unsigned char channel, + unsigned char target, unsigned char lun, + struct myrs_pdev_info *pdev_info) +{ + struct myrs_cmdblk *cmd_blk = &cs->dcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + dma_addr_t pdev_info_addr; + union myrs_sgl *sgl; + unsigned char status; + + pdev_info_addr = dma_map_single(&cs->pdev->dev, pdev_info, + sizeof(struct myrs_pdev_info), + DMA_FROM_DEVICE); + if (dma_mapping_error(&cs->pdev->dev, pdev_info_addr)) + return DAC960_V2_AbnormalCompletion; + + mutex_lock(&cs->dcmd_mutex); + myrs_reset_cmd(cmd_blk); + mbox->PhysicalDeviceInfo.opcode = DAC960_V2_IOCTL; + mbox->PhysicalDeviceInfo.id = MYRS_DCMD_TAG; + mbox->PhysicalDeviceInfo.control.dma_ctrl_to_host = true; + mbox->PhysicalDeviceInfo.control.no_autosense = true; + mbox->PhysicalDeviceInfo.dma_size = sizeof(struct myrs_pdev_info); + mbox->PhysicalDeviceInfo.pdev.lun = lun; + mbox->PhysicalDeviceInfo.pdev.target = target; + mbox->PhysicalDeviceInfo.pdev.channel = channel; + mbox->PhysicalDeviceInfo.ioctl_opcode = + DAC960_V2_GetPhysicalDeviceInfoValid; + sgl = &mbox->PhysicalDeviceInfo.dma_addr; + sgl->sge[0].sge_addr = pdev_info_addr; + sgl->sge[0].sge_count = mbox->PhysicalDeviceInfo.dma_size; + dev_dbg(&cs->host->shost_gendev, + "Sending GetPhysicalDeviceInfoValid for pdev %d:%d:%d\n", + channel, target, lun); + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + dma_unmap_single(&cs->pdev->dev, pdev_info_addr, + sizeof(struct myrs_pdev_info), DMA_FROM_DEVICE); + return status; +} + +/** + * myrs_dev_op - executes a "Device Operation" Command + */ +static unsigned char +myrs_dev_op(struct myrs_hba *cs, enum myrs_ioctl_opcode opcode, + enum myrs_opdev opdev) +{ + struct myrs_cmdblk *cmd_blk = &cs->dcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + unsigned char status; + + mutex_lock(&cs->dcmd_mutex); + myrs_reset_cmd(cmd_blk); + mbox->DeviceOperation.opcode = DAC960_V2_IOCTL; + mbox->DeviceOperation.id = MYRS_DCMD_TAG; + mbox->DeviceOperation.control.dma_ctrl_to_host = true; + mbox->DeviceOperation.control.no_autosense = true; + mbox->DeviceOperation.ioctl_opcode = opcode; + mbox->DeviceOperation.opdev = opdev; + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + return status; +} + +/** + * myrs_translate_pdev - translates a Physical Device Channel and + * TargetID into a Logical Device. + */ +static unsigned char +myrs_translate_pdev(struct myrs_hba *cs, unsigned char channel, + unsigned char target, unsigned char lun, + struct myrs_devmap *devmap) +{ + struct pci_dev *pdev = cs->pdev; + dma_addr_t devmap_addr; + struct myrs_cmdblk *cmd_blk; + union myrs_cmd_mbox *mbox; + union myrs_sgl *sgl; + unsigned char status; + + memset(devmap, 0x0, sizeof(struct myrs_devmap)); + devmap_addr = dma_map_single(&pdev->dev, devmap, + sizeof(struct myrs_devmap), + DMA_FROM_DEVICE); + if (dma_mapping_error(&pdev->dev, devmap_addr)) + return DAC960_V2_AbnormalCompletion; + + mutex_lock(&cs->dcmd_mutex); + cmd_blk = &cs->dcmd_blk; + mbox = &cmd_blk->mbox; + mbox->PhysicalDeviceInfo.opcode = DAC960_V2_IOCTL; + mbox->PhysicalDeviceInfo.control.dma_ctrl_to_host = true; + mbox->PhysicalDeviceInfo.control.no_autosense = true; + mbox->PhysicalDeviceInfo.dma_size = sizeof(struct myrs_devmap); + mbox->PhysicalDeviceInfo.pdev.target = target; + mbox->PhysicalDeviceInfo.pdev.channel = channel; + mbox->PhysicalDeviceInfo.pdev.lun = lun; + mbox->PhysicalDeviceInfo.ioctl_opcode = + DAC960_V2_TranslatePhysicalToLogicalDevice; + sgl = &mbox->PhysicalDeviceInfo.dma_addr; + sgl->sge[0].sge_addr = devmap_addr; + sgl->sge[0].sge_count = mbox->PhysicalDeviceInfo.dma_size; + + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + dma_unmap_single(&pdev->dev, devmap_addr, + sizeof(struct myrs_devmap), DMA_FROM_DEVICE); + return status; +} + +/** + * myrs_get_event - executes a Get Event Command + */ +static unsigned char +myrs_get_event(struct myrs_hba *cs, unsigned int event_num, + struct myrs_event *event_buf) +{ + struct pci_dev *pdev = cs->pdev; + dma_addr_t event_addr; + struct myrs_cmdblk *cmd_blk = &cs->mcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + union myrs_sgl *sgl; + unsigned char status; + + event_addr = dma_map_single(&pdev->dev, event_buf, + sizeof(struct myrs_event), DMA_FROM_DEVICE); + if (dma_mapping_error(&pdev->dev, event_addr)) + return DAC960_V2_AbnormalCompletion; + + mbox->GetEvent.opcode = DAC960_V2_IOCTL; + mbox->GetEvent.dma_size = sizeof(struct myrs_event); + mbox->GetEvent.evnum_upper = event_num >> 16; + mbox->GetEvent.ctlr_num = 0; + mbox->GetEvent.ioctl_opcode = DAC960_V2_GetEvent; + mbox->GetEvent.evnum_lower = event_num & 0xFFFF; + sgl = &mbox->GetEvent.dma_addr; + sgl->sge[0].sge_addr = event_addr; + sgl->sge[0].sge_count = mbox->GetEvent.dma_size; + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + dma_unmap_single(&pdev->dev, event_addr, + sizeof(struct myrs_event), DMA_FROM_DEVICE); + + return status; +} + +/* + * myrs_get_fwstatus - executes a Get Health Status Command + */ +static unsigned char myrs_get_fwstatus(struct myrs_hba *cs) +{ + struct myrs_cmdblk *cmd_blk = &cs->mcmd_blk; + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + union myrs_sgl *sgl; + unsigned char status = cmd_blk->status; + + myrs_reset_cmd(cmd_blk); + mbox->Common.opcode = DAC960_V2_IOCTL; + mbox->Common.id = MYRS_MCMD_TAG; + mbox->Common.control.dma_ctrl_to_host = true; + mbox->Common.control.no_autosense = true; + mbox->Common.dma_size = sizeof(struct myrs_fwstat); + mbox->Common.ioctl_opcode = DAC960_V2_GetHealthStatus; + sgl = &mbox->Common.dma_addr; + sgl->sge[0].sge_addr = cs->fwstat_addr; + sgl->sge[0].sge_count = mbox->ControllerInfo.dma_size; + dev_dbg(&cs->host->shost_gendev, "Sending GetHealthStatus\n"); + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + + return status; +} + +/** + * myrs_enable_mmio_mbox - enables the Memory Mailbox Interface + */ +static bool myrs_enable_mmio_mbox(struct myrs_hba *cs, + enable_mbox_t enable_mbox_fn) +{ + void __iomem *base = cs->io_base; + struct pci_dev *pdev = cs->pdev; + union myrs_cmd_mbox *cmd_mbox; + struct myrs_stat_mbox *stat_mbox; + union myrs_cmd_mbox *mbox; + dma_addr_t mbox_addr; + unsigned char status = DAC960_V2_AbnormalCompletion; + + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { + dev_err(&pdev->dev, "DMA mask out of range\n"); + return false; + } + + /* Temporary dma mapping, used only in the scope of this function */ + mbox = dma_alloc_coherent(&pdev->dev, sizeof(union myrs_cmd_mbox), + &mbox_addr, GFP_KERNEL); + if (dma_mapping_error(&pdev->dev, mbox_addr)) + return false; + + /* These are the base addresses for the command memory mailbox array */ + cs->cmd_mbox_size = MYRS_MAX_CMD_MBOX * sizeof(union myrs_cmd_mbox); + cmd_mbox = dma_alloc_coherent(&pdev->dev, cs->cmd_mbox_size, + &cs->cmd_mbox_addr, GFP_KERNEL); + if (dma_mapping_error(&pdev->dev, cs->cmd_mbox_addr)) { + dev_err(&pdev->dev, "Failed to map command mailbox\n"); + goto out_free; + } + cs->first_cmd_mbox = cmd_mbox; + cmd_mbox += MYRS_MAX_CMD_MBOX - 1; + cs->last_cmd_mbox = cmd_mbox; + cs->next_cmd_mbox = cs->first_cmd_mbox; + cs->prev_cmd_mbox1 = cs->last_cmd_mbox; + cs->prev_cmd_mbox2 = cs->last_cmd_mbox - 1; + + /* These are the base addresses for the status memory mailbox array */ + cs->stat_mbox_size = MYRS_MAX_STAT_MBOX * sizeof(struct myrs_stat_mbox); + stat_mbox = dma_alloc_coherent(&pdev->dev, cs->stat_mbox_size, + &cs->stat_mbox_addr, GFP_KERNEL); + if (dma_mapping_error(&pdev->dev, cs->stat_mbox_addr)) { + dev_err(&pdev->dev, "Failed to map status mailbox\n"); + goto out_free; + } + + cs->first_stat_mbox = stat_mbox; + stat_mbox += MYRS_MAX_STAT_MBOX - 1; + cs->last_stat_mbox = stat_mbox; + cs->next_stat_mbox = cs->first_stat_mbox; + + cs->fwstat_buf = dma_alloc_coherent(&pdev->dev, + sizeof(struct myrs_fwstat), + &cs->fwstat_addr, GFP_KERNEL); + if (dma_mapping_error(&pdev->dev, cs->fwstat_addr)) { + dev_err(&pdev->dev, "Failed to map firmware health buffer\n"); + cs->fwstat_buf = NULL; + goto out_free; + } + cs->ctlr_info = kzalloc(sizeof(struct myrs_ctlr_info), + GFP_KERNEL | GFP_DMA); + if (!cs->ctlr_info) { + dev_err(&pdev->dev, "Failed to allocate controller info\n"); + goto out_free; + } + + cs->event_buf = kzalloc(sizeof(struct myrs_event), + GFP_KERNEL | GFP_DMA); + if (!cs->event_buf) { + dev_err(&pdev->dev, "Failed to allocate event buffer\n"); + goto out_free; + } + + /* Enable the Memory Mailbox Interface. */ + memset(mbox, 0, sizeof(union myrs_cmd_mbox)); + mbox->SetMemoryMailbox.id = 1; + mbox->SetMemoryMailbox.opcode = DAC960_V2_IOCTL; + mbox->SetMemoryMailbox.control.no_autosense = true; + mbox->SetMemoryMailbox.first_cmd_mbox_size_kb = + (MYRS_MAX_CMD_MBOX * sizeof(union myrs_cmd_mbox)) >> 10; + mbox->SetMemoryMailbox.first_stat_mbox_size_kb = + (MYRS_MAX_STAT_MBOX * sizeof(struct myrs_stat_mbox)) >> 10; + mbox->SetMemoryMailbox.second_cmd_mbox_size_kb = 0; + mbox->SetMemoryMailbox.second_stat_mbox_size_kb = 0; + mbox->SetMemoryMailbox.sense_len = 0; + mbox->SetMemoryMailbox.ioctl_opcode = DAC960_V2_SetMemoryMailbox; + mbox->SetMemoryMailbox.fwstat_buf_size_kb = 1; + mbox->SetMemoryMailbox.fwstat_buf_addr = cs->fwstat_addr; + mbox->SetMemoryMailbox.first_cmd_mbox_addr = cs->cmd_mbox_addr; + mbox->SetMemoryMailbox.first_stat_mbox_addr = cs->stat_mbox_addr; + status = enable_mbox_fn(base, mbox_addr); + +out_free: + dma_free_coherent(&pdev->dev, sizeof(union myrs_cmd_mbox), + mbox, mbox_addr); + if (status != DAC960_V2_NormalCompletion) + dev_err(&pdev->dev, "Failed to enable mailbox, status %X\n", + status); + return (status == DAC960_V2_NormalCompletion); +} + +/** + * myrs_get_config - reads the Configuration Information + */ +static int myrs_get_config(struct myrs_hba *cs) +{ + struct myrs_ctlr_info *info = cs->ctlr_info; + struct Scsi_Host *shost = cs->host; + unsigned char status; + unsigned char model[20]; + unsigned char fw_version[12]; + int i, model_len; + + /* Get data into dma-able area, then copy into permanent location */ + mutex_lock(&cs->cinfo_mutex); + status = myrs_get_ctlr_info(cs); + mutex_unlock(&cs->cinfo_mutex); + if (status != DAC960_V2_NormalCompletion) { + shost_printk(KERN_ERR, shost, + "Failed to get controller information\n"); + return -ENODEV; + } + + /* Initialize the Controller Model Name and Full Model Name fields. */ + model_len = sizeof(info->ctlr_name); + if (model_len > sizeof(model)-1) + model_len = sizeof(model)-1; + memcpy(model, info->ctlr_name, model_len); + model_len--; + while (model[model_len] == ' ' || model[model_len] == '\0') + model_len--; + model[++model_len] = '\0'; + strcpy(cs->model_name, "DAC960 "); + strcat(cs->model_name, model); + /* Initialize the Controller Firmware Version field. */ + sprintf(fw_version, "%d.%02d-%02d", + info->fw_major_version, info->fw_minor_version, + info->fw_turn_number); + if (info->fw_major_version == 6 && + info->fw_minor_version == 0 && + info->fw_turn_number < 1) { + shost_printk(KERN_WARNING, shost, + "FIRMWARE VERSION %s DOES NOT PROVIDE THE CONTROLLER\n" + "STATUS MONITORING FUNCTIONALITY NEEDED BY THIS DRIVER.\n" + "PLEASE UPGRADE TO VERSION 6.00-01 OR ABOVE.\n", + fw_version); + return -ENODEV; + } + /* Initialize the Controller Channels and Targets. */ + shost->max_channel = info->physchan_present + info->virtchan_present; + shost->max_id = info->max_targets[0]; + for (i = 1; i < 16; i++) { + if (!info->max_targets[i]) + continue; + if (shost->max_id < info->max_targets[i]) + shost->max_id = info->max_targets[i]; + } + + /* + * Initialize the Controller Queue Depth, Driver Queue Depth, + * Logical Drive Count, Maximum Blocks per Command, Controller + * Scatter/Gather Limit, and Driver Scatter/Gather Limit. + * The Driver Queue Depth must be at most three less than + * the Controller Queue Depth; tag '1' is reserved for + * direct commands, and tag '2' for monitoring commands. + */ + shost->can_queue = info->max_tcq - 3; + if (shost->can_queue > MYRS_MAX_CMD_MBOX - 3) + shost->can_queue = MYRS_MAX_CMD_MBOX - 3; + shost->max_sectors = info->max_transfer_size; + shost->sg_tablesize = info->max_sge; + if (shost->sg_tablesize > MYRS_SG_LIMIT) + shost->sg_tablesize = MYRS_SG_LIMIT; + + shost_printk(KERN_INFO, shost, + "Configuring %s PCI RAID Controller\n", model); + shost_printk(KERN_INFO, shost, + " Firmware Version: %s, Channels: %d, Memory Size: %dMB\n", + fw_version, info->physchan_present, info->mem_size_mb); + + shost_printk(KERN_INFO, shost, + " Controller Queue Depth: %d," + " Maximum Blocks per Command: %d\n", + shost->can_queue, shost->max_sectors); + + shost_printk(KERN_INFO, shost, + " Driver Queue Depth: %d," + " Scatter/Gather Limit: %d of %d Segments\n", + shost->can_queue, shost->sg_tablesize, MYRS_SG_LIMIT); + for (i = 0; i < info->physchan_max; i++) { + if (!info->max_targets[i]) + continue; + shost_printk(KERN_INFO, shost, + " Device Channel %d: max %d devices\n", + i, info->max_targets[i]); + } + shost_printk(KERN_INFO, shost, + " Physical: %d/%d channels, %d disks, %d devices\n", + info->physchan_present, info->physchan_max, + info->pdisk_present, info->pdev_present); + + shost_printk(KERN_INFO, shost, + " Logical: %d/%d channels, %d disks\n", + info->virtchan_present, info->virtchan_max, + info->ldev_present); + return 0; +} + +/** + * myrs_log_event - prints a Controller Event message + */ +static struct { + int ev_code; + unsigned char *ev_msg; +} myrs_ev_list[] = +{ /* Physical Device Events (0x0000 - 0x007F) */ + { 0x0001, "P Online" }, + { 0x0002, "P Standby" }, + { 0x0005, "P Automatic Rebuild Started" }, + { 0x0006, "P Manual Rebuild Started" }, + { 0x0007, "P Rebuild Completed" }, + { 0x0008, "P Rebuild Cancelled" }, + { 0x0009, "P Rebuild Failed for Unknown Reasons" }, + { 0x000A, "P Rebuild Failed due to New Physical Device" }, + { 0x000B, "P Rebuild Failed due to Logical Drive Failure" }, + { 0x000C, "S Offline" }, + { 0x000D, "P Found" }, + { 0x000E, "P Removed" }, + { 0x000F, "P Unconfigured" }, + { 0x0010, "P Expand Capacity Started" }, + { 0x0011, "P Expand Capacity Completed" }, + { 0x0012, "P Expand Capacity Failed" }, + { 0x0013, "P Command Timed Out" }, + { 0x0014, "P Command Aborted" }, + { 0x0015, "P Command Retried" }, + { 0x0016, "P Parity Error" }, + { 0x0017, "P Soft Error" }, + { 0x0018, "P Miscellaneous Error" }, + { 0x0019, "P Reset" }, + { 0x001A, "P Active Spare Found" }, + { 0x001B, "P Warm Spare Found" }, + { 0x001C, "S Sense Data Received" }, + { 0x001D, "P Initialization Started" }, + { 0x001E, "P Initialization Completed" }, + { 0x001F, "P Initialization Failed" }, + { 0x0020, "P Initialization Cancelled" }, + { 0x0021, "P Failed because Write Recovery Failed" }, + { 0x0022, "P Failed because SCSI Bus Reset Failed" }, + { 0x0023, "P Failed because of Double Check Condition" }, + { 0x0024, "P Failed because Device Cannot Be Accessed" }, + { 0x0025, "P Failed because of Gross Error on SCSI Processor" }, + { 0x0026, "P Failed because of Bad Tag from Device" }, + { 0x0027, "P Failed because of Command Timeout" }, + { 0x0028, "P Failed because of System Reset" }, + { 0x0029, "P Failed because of Busy Status or Parity Error" }, + { 0x002A, "P Failed because Host Set Device to Failed State" }, + { 0x002B, "P Failed because of Selection Timeout" }, + { 0x002C, "P Failed because of SCSI Bus Phase Error" }, + { 0x002D, "P Failed because Device Returned Unknown Status" }, + { 0x002E, "P Failed because Device Not Ready" }, + { 0x002F, "P Failed because Device Not Found at Startup" }, + { 0x0030, "P Failed because COD Write Operation Failed" }, + { 0x0031, "P Failed because BDT Write Operation Failed" }, + { 0x0039, "P Missing at Startup" }, + { 0x003A, "P Start Rebuild Failed due to Physical Drive Too Small" }, + { 0x003C, "P Temporarily Offline Device Automatically Made Online" }, + { 0x003D, "P Standby Rebuild Started" }, + /* Logical Device Events (0x0080 - 0x00FF) */ + { 0x0080, "M Consistency Check Started" }, + { 0x0081, "M Consistency Check Completed" }, + { 0x0082, "M Consistency Check Cancelled" }, + { 0x0083, "M Consistency Check Completed With Errors" }, + { 0x0084, "M Consistency Check Failed due to Logical Drive Failure" }, + { 0x0085, "M Consistency Check Failed due to Physical Device Failure" }, + { 0x0086, "L Offline" }, + { 0x0087, "L Critical" }, + { 0x0088, "L Online" }, + { 0x0089, "M Automatic Rebuild Started" }, + { 0x008A, "M Manual Rebuild Started" }, + { 0x008B, "M Rebuild Completed" }, + { 0x008C, "M Rebuild Cancelled" }, + { 0x008D, "M Rebuild Failed for Unknown Reasons" }, + { 0x008E, "M Rebuild Failed due to New Physical Device" }, + { 0x008F, "M Rebuild Failed due to Logical Drive Failure" }, + { 0x0090, "M Initialization Started" }, + { 0x0091, "M Initialization Completed" }, + { 0x0092, "M Initialization Cancelled" }, + { 0x0093, "M Initialization Failed" }, + { 0x0094, "L Found" }, + { 0x0095, "L Deleted" }, + { 0x0096, "M Expand Capacity Started" }, + { 0x0097, "M Expand Capacity Completed" }, + { 0x0098, "M Expand Capacity Failed" }, + { 0x0099, "L Bad Block Found" }, + { 0x009A, "L Size Changed" }, + { 0x009B, "L Type Changed" }, + { 0x009C, "L Bad Data Block Found" }, + { 0x009E, "L Read of Data Block in BDT" }, + { 0x009F, "L Write Back Data for Disk Block Lost" }, + { 0x00A0, "L Temporarily Offline RAID-5/3 Drive Made Online" }, + { 0x00A1, "L Temporarily Offline RAID-6/1/0/7 Drive Made Online" }, + { 0x00A2, "L Standby Rebuild Started" }, + /* Fault Management Events (0x0100 - 0x017F) */ + { 0x0140, "E Fan %d Failed" }, + { 0x0141, "E Fan %d OK" }, + { 0x0142, "E Fan %d Not Present" }, + { 0x0143, "E Power Supply %d Failed" }, + { 0x0144, "E Power Supply %d OK" }, + { 0x0145, "E Power Supply %d Not Present" }, + { 0x0146, "E Temperature Sensor %d Temperature Exceeds Safe Limit" }, + { 0x0147, "E Temperature Sensor %d Temperature Exceeds Working Limit" }, + { 0x0148, "E Temperature Sensor %d Temperature Normal" }, + { 0x0149, "E Temperature Sensor %d Not Present" }, + { 0x014A, "E Enclosure Management Unit %d Access Critical" }, + { 0x014B, "E Enclosure Management Unit %d Access OK" }, + { 0x014C, "E Enclosure Management Unit %d Access Offline" }, + /* Controller Events (0x0180 - 0x01FF) */ + { 0x0181, "C Cache Write Back Error" }, + { 0x0188, "C Battery Backup Unit Found" }, + { 0x0189, "C Battery Backup Unit Charge Level Low" }, + { 0x018A, "C Battery Backup Unit Charge Level OK" }, + { 0x0193, "C Installation Aborted" }, + { 0x0195, "C Battery Backup Unit Physically Removed" }, + { 0x0196, "C Memory Error During Warm Boot" }, + { 0x019E, "C Memory Soft ECC Error Corrected" }, + { 0x019F, "C Memory Hard ECC Error Corrected" }, + { 0x01A2, "C Battery Backup Unit Failed" }, + { 0x01AB, "C Mirror Race Recovery Failed" }, + { 0x01AC, "C Mirror Race on Critical Drive" }, + /* Controller Internal Processor Events */ + { 0x0380, "C Internal Controller Hung" }, + { 0x0381, "C Internal Controller Firmware Breakpoint" }, + { 0x0390, "C Internal Controller i960 Processor Specific Error" }, + { 0x03A0, "C Internal Controller StrongARM Processor Specific Error" }, + { 0, "" } +}; + +static void myrs_log_event(struct myrs_hba *cs, struct myrs_event *ev) +{ + unsigned char msg_buf[MYRS_LINE_BUFFER_SIZE]; + int ev_idx = 0, ev_code; + unsigned char ev_type, *ev_msg; + struct Scsi_Host *shost = cs->host; + struct scsi_device *sdev; + struct scsi_sense_hdr sshdr; + unsigned char sense_info[4]; + unsigned char cmd_specific[4]; + + if (ev->ev_code == 0x1C) { + if (!scsi_normalize_sense(ev->sense_data, 40, &sshdr)) { + memset(&sshdr, 0x0, sizeof(sshdr)); + memset(sense_info, 0x0, sizeof(sense_info)); + memset(cmd_specific, 0x0, sizeof(cmd_specific)); + } else { + memcpy(sense_info, &ev->sense_data[3], 4); + memcpy(cmd_specific, &ev->sense_data[7], 4); + } + } + if (sshdr.sense_key == VENDOR_SPECIFIC && + (sshdr.asc == 0x80 || sshdr.asc == 0x81)) + ev->ev_code = ((sshdr.asc - 0x80) << 8 | sshdr.ascq); + while (true) { + ev_code = myrs_ev_list[ev_idx].ev_code; + if (ev_code == ev->ev_code || ev_code == 0) + break; + ev_idx++; + } + ev_type = myrs_ev_list[ev_idx].ev_msg[0]; + ev_msg = &myrs_ev_list[ev_idx].ev_msg[2]; + if (ev_code == 0) { + shost_printk(KERN_WARNING, shost, + "Unknown Controller Event Code %04X\n", + ev->ev_code); + return; + } + switch (ev_type) { + case 'P': + sdev = scsi_device_lookup(shost, ev->channel, + ev->target, 0); + sdev_printk(KERN_INFO, sdev, "event %d: Physical Device %s\n", + ev->ev_seq, ev_msg); + if (sdev && sdev->hostdata && + sdev->channel < cs->ctlr_info->physchan_present) { + struct myrs_pdev_info *pdev_info = sdev->hostdata; + switch (ev->ev_code) { + case 0x0001: + case 0x0007: + pdev_info->dev_state = DAC960_V2_Device_Online; + break; + case 0x0002: + pdev_info->dev_state = DAC960_V2_Device_Standby; + break; + case 0x000C: + pdev_info->dev_state = DAC960_V2_Device_Offline; + break; + case 0x000E: + pdev_info->dev_state = DAC960_V2_Device_Missing; + break; + case 0x000F: + pdev_info->dev_state = + DAC960_V2_Device_Unconfigured; + break; + } + } + break; + case 'L': + shost_printk(KERN_INFO, shost, + "event %d: Logical Drive %d %s\n", + ev->ev_seq, ev->lun, ev_msg); + cs->needs_update = true; + break; + case 'M': + shost_printk(KERN_INFO, shost, + "event %d: Logical Drive %d %s\n", + ev->ev_seq, ev->lun, ev_msg); + cs->needs_update = true; + break; + case 'S': + if (sshdr.sense_key == NO_SENSE || + (sshdr.sense_key == NOT_READY && + sshdr.asc == 0x04 && (sshdr.ascq == 0x01 || + sshdr.ascq == 0x02))) + break; + shost_printk(KERN_INFO, shost, + "event %d: Physical Device %d:%d %s\n", + ev->ev_seq, ev->channel, ev->target, ev_msg); + shost_printk(KERN_INFO, shost, + "Physical Device %d:%d Request Sense: " + "Sense Key = %X, ASC = %02X, ASCQ = %02X\n", + ev->channel, ev->target, + sshdr.sense_key, sshdr.asc, sshdr.ascq); + shost_printk(KERN_INFO, shost, + "Physical Device %d:%d Request Sense: " + "Information = %02X%02X%02X%02X " + "%02X%02X%02X%02X\n", + ev->channel, ev->target, + sense_info[0], sense_info[1], + sense_info[2], sense_info[3], + cmd_specific[0], cmd_specific[1], + cmd_specific[2], cmd_specific[3]); + break; + case 'E': + if (cs->disable_enc_msg) + break; + sprintf(msg_buf, ev_msg, ev->lun); + shost_printk(KERN_INFO, shost, "event %d: Enclosure %d %s\n", + ev->ev_seq, ev->target, msg_buf); + break; + case 'C': + shost_printk(KERN_INFO, shost, "event %d: Controller %s\n", + ev->ev_seq, ev_msg); + break; + default: + shost_printk(KERN_INFO, shost, + "event %d: Unknown Event Code %04X\n", + ev->ev_seq, ev->ev_code); + break; + } +} + +/* + * SCSI sysfs interface functions + */ +static ssize_t myrs_show_dev_state(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + int ret; + + if (!sdev->hostdata) + return snprintf(buf, 16, "Unknown\n"); + + if (sdev->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + const char *name; + + name = myrs_devstate_name(ldev_info->dev_state); + if (name) + ret = snprintf(buf, 32, "%s\n", name); + else + ret = snprintf(buf, 32, "Invalid (%02X)\n", + ldev_info->dev_state); + } else { + struct myrs_pdev_info *pdev_info; + const char *name; + + pdev_info = sdev->hostdata; + name = myrs_devstate_name(pdev_info->dev_state); + if (name) + ret = snprintf(buf, 32, "%s\n", name); + else + ret = snprintf(buf, 32, "Invalid (%02X)\n", + pdev_info->dev_state); + } + return ret; +} + +static ssize_t myrs_store_dev_state(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_cmdblk *cmd_blk; + union myrs_cmd_mbox *mbox; + enum myrs_devstate new_state; + unsigned short ldev_num; + unsigned char status; + + if (!strncmp(buf, "offline", 7) || + !strncmp(buf, "kill", 4)) + new_state = DAC960_V2_Device_Offline; + else if (!strncmp(buf, "online", 6)) + new_state = DAC960_V2_Device_Online; + else if (!strncmp(buf, "standby", 7)) + new_state = DAC960_V2_Device_Standby; + else + return -EINVAL; + + if (sdev->channel < cs->ctlr_info->physchan_present) { + struct myrs_pdev_info *pdev_info = sdev->hostdata; + struct myrs_devmap *pdev_devmap = + (struct myrs_devmap *)&pdev_info->rsvd13; + + if (pdev_info->dev_state == new_state) { + sdev_printk(KERN_INFO, sdev, + "Device already in %s\n", + myrs_devstate_name(new_state)); + return count; + } + status = myrs_translate_pdev(cs, sdev->channel, sdev->id, + sdev->lun, pdev_devmap); + if (status != DAC960_V2_NormalCompletion) + return -ENXIO; + ldev_num = pdev_devmap->ldev_num; + } else { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + + if (ldev_info->dev_state == new_state) { + sdev_printk(KERN_INFO, sdev, + "Device already in %s\n", + myrs_devstate_name(new_state)); + return count; + } + ldev_num = ldev_info->ldev_num; + } + mutex_lock(&cs->dcmd_mutex); + cmd_blk = &cs->dcmd_blk; + myrs_reset_cmd(cmd_blk); + mbox = &cmd_blk->mbox; + mbox->Common.opcode = DAC960_V2_IOCTL; + mbox->Common.id = MYRS_DCMD_TAG; + mbox->Common.control.dma_ctrl_to_host = true; + mbox->Common.control.no_autosense = true; + mbox->SetDeviceState.ioctl_opcode = DAC960_V2_SetDeviceState; + mbox->SetDeviceState.state = new_state; + mbox->SetDeviceState.ldev.ldev_num = ldev_num; + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + if (status == DAC960_V2_NormalCompletion) { + if (sdev->channel < cs->ctlr_info->physchan_present) { + struct myrs_pdev_info *pdev_info = sdev->hostdata; + + pdev_info->dev_state = new_state; + } else { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + + ldev_info->dev_state = new_state; + } + sdev_printk(KERN_INFO, sdev, + "Set device state to %s\n", + myrs_devstate_name(new_state)); + return count; + } + sdev_printk(KERN_INFO, sdev, + "Failed to set device state to %s, status 0x%02x\n", + myrs_devstate_name(new_state), status); + return -EINVAL; +} + +static DEVICE_ATTR(raid_state, S_IRUGO | S_IWUSR, myrs_show_dev_state, + myrs_store_dev_state); + +static ssize_t myrs_show_dev_level(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + const char *name = NULL; + + if (!sdev->hostdata) + return snprintf(buf, 16, "Unknown\n"); + + if (sdev->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info; + + ldev_info = sdev->hostdata; + name = myrs_raid_level_name(ldev_info->raid_level); + if (!name) + return snprintf(buf, 32, "Invalid (%02X)\n", + ldev_info->dev_state); + + } else + name = myrs_raid_level_name(DAC960_V2_RAID_Physical); + + return snprintf(buf, 32, "%s\n", name); +} +static DEVICE_ATTR(raid_level, S_IRUGO, myrs_show_dev_level, NULL); + +static ssize_t myrs_show_dev_rebuild(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info; + unsigned short ldev_num; + unsigned char status; + + if (sdev->channel < cs->ctlr_info->physchan_present) + return snprintf(buf, 32, "physical device - not rebuilding\n"); + + ldev_info = sdev->hostdata; + ldev_num = ldev_info->ldev_num; + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + if (status != DAC960_V2_NormalCompletion) { + sdev_printk(KERN_INFO, sdev, + "Failed to get device information, status 0x%02x\n", + status); + return -EIO; + } + if (ldev_info->rbld_active) { + return snprintf(buf, 32, "rebuilding block %zu of %zu\n", + (size_t)ldev_info->rbld_lba, + (size_t)ldev_info->cfg_devsize); + } else + return snprintf(buf, 32, "not rebuilding\n"); +} + +static ssize_t myrs_store_dev_rebuild(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info; + struct myrs_cmdblk *cmd_blk; + union myrs_cmd_mbox *mbox; + char tmpbuf[8]; + ssize_t len; + unsigned short ldev_num; + unsigned char status; + int rebuild; + int ret = count; + + if (sdev->channel < cs->ctlr_info->physchan_present) + return -EINVAL; + + ldev_info = sdev->hostdata; + if (!ldev_info) + return -ENXIO; + ldev_num = ldev_info->ldev_num; + + len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; + strncpy(tmpbuf, buf, len); + tmpbuf[len] = '\0'; + if (sscanf(tmpbuf, "%d", &rebuild) != 1) + return -EINVAL; + + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + if (status != DAC960_V2_NormalCompletion) { + sdev_printk(KERN_INFO, sdev, + "Failed to get device information, status 0x%02x\n", + status); + return -EIO; + } + + if (rebuild && ldev_info->rbld_active) { + sdev_printk(KERN_INFO, sdev, + "Rebuild Not Initiated; already in progress\n"); + return -EALREADY; + } + if (!rebuild && !ldev_info->rbld_active) { + sdev_printk(KERN_INFO, sdev, + "Rebuild Not Cancelled; no rebuild in progress\n"); + return ret; + } + + mutex_lock(&cs->dcmd_mutex); + cmd_blk = &cs->dcmd_blk; + myrs_reset_cmd(cmd_blk); + mbox = &cmd_blk->mbox; + mbox->Common.opcode = DAC960_V2_IOCTL; + mbox->Common.id = MYRS_DCMD_TAG; + mbox->Common.control.dma_ctrl_to_host = true; + mbox->Common.control.no_autosense = true; + if (rebuild) { + mbox->LogicalDeviceInfo.ldev.ldev_num = ldev_num; + mbox->LogicalDeviceInfo.ioctl_opcode = + DAC960_V2_RebuildDeviceStart; + } else { + mbox->LogicalDeviceInfo.ldev.ldev_num = ldev_num; + mbox->LogicalDeviceInfo.ioctl_opcode = + DAC960_V2_RebuildDeviceStop; + } + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + if (status) { + sdev_printk(KERN_INFO, sdev, + "Rebuild Not %s, status 0x%02x\n", + rebuild ? "Initiated" : "Cancelled", status); + ret = -EIO; + } else + sdev_printk(KERN_INFO, sdev, "Rebuild %s\n", + rebuild ? "Initiated" : "Cancelled"); + + return ret; +} +static DEVICE_ATTR(rebuild, S_IRUGO | S_IWUSR, myrs_show_dev_rebuild, + myrs_store_dev_rebuild); + +static ssize_t myrs_show_consistency_check(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info; + unsigned short ldev_num; + unsigned char status; + + if (sdev->channel < cs->ctlr_info->physchan_present) + return snprintf(buf, 32, "physical device - not checking\n"); + + ldev_info = sdev->hostdata; + if (!ldev_info) + return -ENXIO; + ldev_num = ldev_info->ldev_num; + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + if (ldev_info->cc_active) + return snprintf(buf, 32, "checking block %zu of %zu\n", + (size_t)ldev_info->cc_lba, + (size_t)ldev_info->cfg_devsize); + else + return snprintf(buf, 32, "not checking\n"); +} + +static ssize_t myrs_store_consistency_check(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info; + struct myrs_cmdblk *cmd_blk; + union myrs_cmd_mbox *mbox; + char tmpbuf[8]; + ssize_t len; + unsigned short ldev_num; + unsigned char status; + int check; + int ret = count; + + if (sdev->channel < cs->ctlr_info->physchan_present) + return -EINVAL; + + ldev_info = sdev->hostdata; + if (!ldev_info) + return -ENXIO; + ldev_num = ldev_info->ldev_num; + + len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; + strncpy(tmpbuf, buf, len); + tmpbuf[len] = '\0'; + if (sscanf(tmpbuf, "%d", &check) != 1) + return -EINVAL; + + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + if (status != DAC960_V2_NormalCompletion) { + sdev_printk(KERN_INFO, sdev, + "Failed to get device information, status 0x%02x\n", + status); + return -EIO; + } + if (check && ldev_info->cc_active) { + sdev_printk(KERN_INFO, sdev, + "Consistency Check Not Initiated; " + "already in progress\n"); + return -EALREADY; + } + if (!check && !ldev_info->cc_active) { + sdev_printk(KERN_INFO, sdev, + "Consistency Check Not Cancelled; " + "check not in progress\n"); + return ret; + } + + mutex_lock(&cs->dcmd_mutex); + cmd_blk = &cs->dcmd_blk; + myrs_reset_cmd(cmd_blk); + mbox = &cmd_blk->mbox; + mbox->Common.opcode = DAC960_V2_IOCTL; + mbox->Common.id = MYRS_DCMD_TAG; + mbox->Common.control.dma_ctrl_to_host = true; + mbox->Common.control.no_autosense = true; + if (check) { + mbox->ConsistencyCheck.ldev.ldev_num = ldev_num; + mbox->ConsistencyCheck.ioctl_opcode = + DAC960_V2_ConsistencyCheckStart; + mbox->ConsistencyCheck.RestoreConsistency = true; + mbox->ConsistencyCheck.InitializedAreaOnly = false; + } else { + mbox->ConsistencyCheck.ldev.ldev_num = ldev_num; + mbox->ConsistencyCheck.ioctl_opcode = + DAC960_V2_ConsistencyCheckStop; + } + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + if (status != DAC960_V2_NormalCompletion) { + sdev_printk(KERN_INFO, sdev, + "Consistency Check Not %s, status 0x%02x\n", + check ? "Initiated" : "Cancelled", status); + ret = -EIO; + } else + sdev_printk(KERN_INFO, sdev, "Consistency Check %s\n", + check ? "Initiated" : "Cancelled"); + + return ret; +} +static DEVICE_ATTR(consistency_check, S_IRUGO | S_IWUSR, + myrs_show_consistency_check, + myrs_store_consistency_check); + +static struct device_attribute *myrs_sdev_attrs[] = { + &dev_attr_consistency_check, + &dev_attr_rebuild, + &dev_attr_raid_state, + &dev_attr_raid_level, + NULL, +}; + +static ssize_t myrs_show_ctlr_serial(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + char serial[17]; + + memcpy(serial, cs->ctlr_info->serial_number, 16); + serial[16] = '\0'; + return snprintf(buf, 16, "%s\n", serial); +} +static DEVICE_ATTR(serial, S_IRUGO, myrs_show_ctlr_serial, NULL); + +static ssize_t myrs_show_ctlr_num(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 20, "%d\n", cs->host->host_no); +} +static DEVICE_ATTR(ctlr_num, S_IRUGO, myrs_show_ctlr_num, NULL); + +static struct myrs_cpu_type_tbl { + enum myrs_cpu_type type; + char *name; +} myrs_cpu_type_names[] = { + { DAC960_V2_ProcessorType_i960CA, "i960CA" }, + { DAC960_V2_ProcessorType_i960RD, "i960RD" }, + { DAC960_V2_ProcessorType_i960RN, "i960RN" }, + { DAC960_V2_ProcessorType_i960RP, "i960RP" }, + { DAC960_V2_ProcessorType_NorthBay, "NorthBay" }, + { DAC960_V2_ProcessorType_StrongArm, "StrongARM" }, + { DAC960_V2_ProcessorType_i960RM, "i960RM" }, + { 0xff, NULL }, +}; + +static ssize_t myrs_show_processor(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + struct myrs_cpu_type_tbl *tbl = myrs_cpu_type_names; + const char *first_processor = NULL; + const char *second_processor = NULL; + struct myrs_ctlr_info *info = cs->ctlr_info; + ssize_t ret; + + if (info->cpu[0].cpu_count) { + while (tbl && tbl->name) { + if (tbl->type == info->cpu[0].cpu_type) { + first_processor = tbl->name; + break; + } + tbl++; + } + } + if (info->cpu[1].cpu_count) { + tbl = myrs_cpu_type_names; + while (tbl && tbl->name) { + if (tbl->type == info->cpu[1].cpu_type) { + second_processor = tbl->name; + break; + } + tbl++; + } + } + if (first_processor && second_processor) + ret = snprintf(buf, 64, "1: %s (%s, %d cpus)\n" + "2: %s (%s, %d cpus)\n", + info->cpu[0].cpu_name, + first_processor, info->cpu[0].cpu_count, + info->cpu[1].cpu_name, + second_processor, info->cpu[1].cpu_count); + else if (!second_processor) + ret = snprintf(buf, 64, "1: %s (%s, %d cpus)\n2: absent\n", + info->cpu[0].cpu_name, + first_processor, info->cpu[0].cpu_count); + else if (!first_processor) + ret = snprintf(buf, 64, "1: absent\n2: %s (%s, %d cpus)\n", + info->cpu[1].cpu_name, + second_processor, info->cpu[1].cpu_count); + else + ret = snprintf(buf, 64, "1: absent\n2: absent\n"); + + return ret; +} +static DEVICE_ATTR(processor, S_IRUGO, myrs_show_processor, NULL); + +static ssize_t myrs_show_model_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 28, "%s\n", cs->model_name); +} +static DEVICE_ATTR(model, S_IRUGO, myrs_show_model_name, NULL); + +static ssize_t myrs_show_ctlr_type(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 4, "%d\n", cs->ctlr_info->ctlr_type); +} +static DEVICE_ATTR(ctlr_type, S_IRUGO, myrs_show_ctlr_type, NULL); + +static ssize_t myrs_show_cache_size(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 8, "%d MB\n", cs->ctlr_info->cache_size_mb); +} +static DEVICE_ATTR(cache_size, S_IRUGO, myrs_show_cache_size, NULL); + +static ssize_t myrs_show_firmware_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 16, "%d.%02d-%02d\n", + cs->ctlr_info->fw_major_version, + cs->ctlr_info->fw_minor_version, + cs->ctlr_info->fw_turn_number); +} +static DEVICE_ATTR(firmware, S_IRUGO, myrs_show_firmware_version, NULL); + +static ssize_t myrs_store_discovery_command(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + struct myrs_cmdblk *cmd_blk; + union myrs_cmd_mbox *mbox; + unsigned char status; + + mutex_lock(&cs->dcmd_mutex); + cmd_blk = &cs->dcmd_blk; + myrs_reset_cmd(cmd_blk); + mbox = &cmd_blk->mbox; + mbox->Common.opcode = DAC960_V2_IOCTL; + mbox->Common.id = MYRS_DCMD_TAG; + mbox->Common.control.dma_ctrl_to_host = true; + mbox->Common.control.no_autosense = true; + mbox->Common.ioctl_opcode = DAC960_V2_StartDiscovery; + myrs_exec_cmd(cs, cmd_blk); + status = cmd_blk->status; + mutex_unlock(&cs->dcmd_mutex); + if (status != DAC960_V2_NormalCompletion) { + shost_printk(KERN_INFO, shost, + "Discovery Not Initiated, status %02X\n", + status); + return -EINVAL; + } + shost_printk(KERN_INFO, shost, "Discovery Initiated\n"); + cs->next_evseq = 0; + cs->needs_update = true; + queue_delayed_work(cs->work_q, &cs->monitor_work, 1); + flush_delayed_work(&cs->monitor_work); + shost_printk(KERN_INFO, shost, "Discovery Completed\n"); + + return count; +} +static DEVICE_ATTR(discovery, S_IWUSR, NULL, myrs_store_discovery_command); + +static ssize_t myrs_store_flush_cache(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + unsigned char status; + + status = myrs_dev_op(cs, DAC960_V2_FlushDeviceData, + DAC960_V2_RAID_Controller); + if (status == DAC960_V2_NormalCompletion) { + shost_printk(KERN_INFO, shost, "Cache Flush Completed\n"); + return count; + } + shost_printk(KERN_INFO, shost, + "Cache Flush failed, status 0x%02x\n", status); + return -EIO; +} +static DEVICE_ATTR(flush_cache, S_IWUSR, NULL, myrs_store_flush_cache); + +static ssize_t myrs_show_suppress_enclosure_messages(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + return snprintf(buf, 3, "%d\n", cs->disable_enc_msg); +} + +static ssize_t myrs_store_suppress_enclosure_messages(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + char tmpbuf[8]; + ssize_t len; + int value; + + len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; + strncpy(tmpbuf, buf, len); + tmpbuf[len] = '\0'; + if (sscanf(tmpbuf, "%d", &value) != 1 || value > 2) + return -EINVAL; + + cs->disable_enc_msg = value; + return count; +} +static DEVICE_ATTR(disable_enclosure_messages, S_IRUGO | S_IWUSR, + myrs_show_suppress_enclosure_messages, + myrs_store_suppress_enclosure_messages); + +static struct device_attribute *myrs_shost_attrs[] = { + &dev_attr_serial, + &dev_attr_ctlr_num, + &dev_attr_processor, + &dev_attr_model, + &dev_attr_ctlr_type, + &dev_attr_cache_size, + &dev_attr_firmware, + &dev_attr_discovery, + &dev_attr_flush_cache, + &dev_attr_disable_enclosure_messages, + NULL, +}; + +/* + * SCSI midlayer interface + */ +int myrs_host_reset(struct scsi_cmnd *scmd) +{ + struct Scsi_Host *shost = scmd->device->host; + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + + cs->reset(cs->io_base); + return SUCCESS; +} + +static void +myrs_mode_sense(struct myrs_hba *cs, struct scsi_cmnd *scmd, + struct myrs_ldev_info *ldev_info) +{ + unsigned char modes[32], *mode_pg; + bool dbd; + size_t mode_len; + + dbd = (scmd->cmnd[1] & 0x08) == 0x08; + if (dbd) { + mode_len = 24; + mode_pg = &modes[4]; + } else { + mode_len = 32; + mode_pg = &modes[12]; + } + memset(modes, 0, sizeof(modes)); + modes[0] = mode_len - 1; + modes[2] = 0x10; /* Enable FUA */ + if (ldev_info->ldev_control.wce == DAC960_V2_LogicalDeviceReadOnly) + modes[2] |= 0x80; + if (!dbd) { + unsigned char *block_desc = &modes[4]; + modes[3] = 8; + put_unaligned_be32(ldev_info->cfg_devsize, &block_desc[0]); + put_unaligned_be32(ldev_info->devsize_bytes, &block_desc[5]); + } + mode_pg[0] = 0x08; + mode_pg[1] = 0x12; + if (ldev_info->ldev_control.rce == DAC960_V2_ReadCacheDisabled) + mode_pg[2] |= 0x01; + if (ldev_info->ldev_control.wce == DAC960_V2_WriteCacheEnabled || + ldev_info->ldev_control.wce == + DAC960_V2_IntelligentWriteCacheEnabled) + mode_pg[2] |= 0x04; + if (ldev_info->cacheline_size) { + mode_pg[2] |= 0x08; + put_unaligned_be16(1 << ldev_info->cacheline_size, + &mode_pg[14]); + } + + scsi_sg_copy_from_buffer(scmd, modes, mode_len); +} + +static int myrs_queuecommand(struct Scsi_Host *shost, + struct scsi_cmnd *scmd) +{ + struct myrs_hba *cs = (struct myrs_hba *)shost->hostdata; + struct myrs_cmdblk *cmd_blk = scsi_cmd_priv(scmd); + union myrs_cmd_mbox *mbox = &cmd_blk->mbox; + struct scsi_device *sdev = scmd->device; + union myrs_sgl *hw_sge; + dma_addr_t sense_addr; + struct scatterlist *sgl; + unsigned long flags, timeout; + int nsge; + + if (!scmd->device->hostdata) { + scmd->result = (DID_NO_CONNECT << 16); + scmd->scsi_done(scmd); + return 0; + } + + switch (scmd->cmnd[0]) { + case REPORT_LUNS: + scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, + 0x20, 0x0); + scmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; + scmd->scsi_done(scmd); + return 0; + case MODE_SENSE: + if (scmd->device->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + if ((scmd->cmnd[2] & 0x3F) != 0x3F && + (scmd->cmnd[2] & 0x3F) != 0x08) { + /* Illegal request, invalid field in CDB */ + scsi_build_sense_buffer(0, scmd->sense_buffer, + ILLEGAL_REQUEST, 0x24, 0); + scmd->result = (DRIVER_SENSE << 24) | + SAM_STAT_CHECK_CONDITION; + } else { + myrs_mode_sense(cs, scmd, ldev_info); + scmd->result = (DID_OK << 16); + } + scmd->scsi_done(scmd); + return 0; + } + break; + } + + myrs_reset_cmd(cmd_blk); + cmd_blk->sense = dma_pool_alloc(cs->sense_pool, GFP_ATOMIC, + &sense_addr); + if (!cmd_blk->sense) + return SCSI_MLQUEUE_HOST_BUSY; + cmd_blk->sense_addr = sense_addr; + + timeout = scmd->request->timeout; + if (scmd->cmd_len <= 10) { + if (scmd->device->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + + mbox->SCSI_10.opcode = DAC960_V2_SCSI_10; + mbox->SCSI_10.pdev.lun = ldev_info->lun; + mbox->SCSI_10.pdev.target = ldev_info->target; + mbox->SCSI_10.pdev.channel = ldev_info->channel; + mbox->SCSI_10.pdev.ctlr = 0; + } else { + mbox->SCSI_10.opcode = DAC960_V2_SCSI_10_Passthru; + mbox->SCSI_10.pdev.lun = sdev->lun; + mbox->SCSI_10.pdev.target = sdev->id; + mbox->SCSI_10.pdev.channel = sdev->channel; + } + mbox->SCSI_10.id = scmd->request->tag + 3; + mbox->SCSI_10.control.dma_ctrl_to_host = + (scmd->sc_data_direction == DMA_FROM_DEVICE); + if (scmd->request->cmd_flags & REQ_FUA) + mbox->SCSI_10.control.fua = true; + mbox->SCSI_10.dma_size = scsi_bufflen(scmd); + mbox->SCSI_10.sense_addr = cmd_blk->sense_addr; + mbox->SCSI_10.sense_len = MYRS_SENSE_SIZE; + mbox->SCSI_10.cdb_len = scmd->cmd_len; + if (timeout > 60) { + mbox->SCSI_10.tmo.tmo_scale = + DAC960_V2_TimeoutScale_Minutes; + mbox->SCSI_10.tmo.tmo_val = timeout / 60; + } else { + mbox->SCSI_10.tmo.tmo_scale = + DAC960_V2_TimeoutScale_Seconds; + mbox->SCSI_10.tmo.tmo_val = timeout; + } + memcpy(&mbox->SCSI_10.cdb, scmd->cmnd, scmd->cmd_len); + hw_sge = &mbox->SCSI_10.dma_addr; + cmd_blk->DCDB = NULL; + } else { + dma_addr_t DCDB_dma; + + cmd_blk->DCDB = dma_pool_alloc(cs->dcdb_pool, GFP_ATOMIC, + &DCDB_dma); + if (!cmd_blk->DCDB) { + dma_pool_free(cs->sense_pool, cmd_blk->sense, + cmd_blk->sense_addr); + cmd_blk->sense = NULL; + cmd_blk->sense_addr = 0; + return SCSI_MLQUEUE_HOST_BUSY; + } + cmd_blk->DCDB_dma = DCDB_dma; + if (scmd->device->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info = sdev->hostdata; + + mbox->SCSI_255.opcode = DAC960_V2_SCSI_256; + mbox->SCSI_255.pdev.lun = ldev_info->lun; + mbox->SCSI_255.pdev.target = ldev_info->target; + mbox->SCSI_255.pdev.channel = ldev_info->channel; + mbox->SCSI_255.pdev.ctlr = 0; + } else { + mbox->SCSI_255.opcode = DAC960_V2_SCSI_255_Passthru; + mbox->SCSI_255.pdev.lun = sdev->lun; + mbox->SCSI_255.pdev.target = sdev->id; + mbox->SCSI_255.pdev.channel = sdev->channel; + } + mbox->SCSI_255.id = scmd->request->tag + 3; + mbox->SCSI_255.control.dma_ctrl_to_host = + (scmd->sc_data_direction == DMA_FROM_DEVICE); + if (scmd->request->cmd_flags & REQ_FUA) + mbox->SCSI_255.control.fua = true; + mbox->SCSI_255.dma_size = scsi_bufflen(scmd); + mbox->SCSI_255.sense_addr = cmd_blk->sense_addr; + mbox->SCSI_255.sense_len = MYRS_SENSE_SIZE; + mbox->SCSI_255.cdb_len = scmd->cmd_len; + mbox->SCSI_255.cdb_addr = cmd_blk->DCDB_dma; + if (timeout > 60) { + mbox->SCSI_255.tmo.tmo_scale = + DAC960_V2_TimeoutScale_Minutes; + mbox->SCSI_255.tmo.tmo_val = timeout / 60; + } else { + mbox->SCSI_255.tmo.tmo_scale = + DAC960_V2_TimeoutScale_Seconds; + mbox->SCSI_255.tmo.tmo_val = timeout; + } + memcpy(cmd_blk->DCDB, scmd->cmnd, scmd->cmd_len); + hw_sge = &mbox->SCSI_255.dma_addr; + } + if (scmd->sc_data_direction == DMA_NONE) + goto submit; + nsge = scsi_dma_map(scmd); + if (nsge == 1) { + sgl = scsi_sglist(scmd); + hw_sge->sge[0].sge_addr = (u64)sg_dma_address(sgl); + hw_sge->sge[0].sge_count = (u64)sg_dma_len(sgl); + } else { + struct myrs_sge *hw_sgl; + dma_addr_t hw_sgl_addr; + int i; + + if (nsge > 2) { + hw_sgl = dma_pool_alloc(cs->sg_pool, GFP_ATOMIC, + &hw_sgl_addr); + if (WARN_ON(!hw_sgl)) { + if (cmd_blk->DCDB) { + dma_pool_free(cs->dcdb_pool, + cmd_blk->DCDB, + cmd_blk->DCDB_dma); + cmd_blk->DCDB = NULL; + cmd_blk->DCDB_dma = 0; + } + dma_pool_free(cs->sense_pool, + cmd_blk->sense, + cmd_blk->sense_addr); + cmd_blk->sense = NULL; + cmd_blk->sense_addr = 0; + return SCSI_MLQUEUE_HOST_BUSY; + } + cmd_blk->sgl = hw_sgl; + cmd_blk->sgl_addr = hw_sgl_addr; + if (scmd->cmd_len <= 10) + mbox->SCSI_10.control.add_sge_mem = true; + else + mbox->SCSI_255.control.add_sge_mem = true; + hw_sge->ext.sge0_len = nsge; + hw_sge->ext.sge0_addr = cmd_blk->sgl_addr; + } else + hw_sgl = hw_sge->sge; + + scsi_for_each_sg(scmd, sgl, nsge, i) { + if (WARN_ON(!hw_sgl)) { + scsi_dma_unmap(scmd); + scmd->result = (DID_ERROR << 16); + scmd->scsi_done(scmd); + return 0; + } + hw_sgl->sge_addr = (u64)sg_dma_address(sgl); + hw_sgl->sge_count = (u64)sg_dma_len(sgl); + hw_sgl++; + } + } +submit: + spin_lock_irqsave(&cs->queue_lock, flags); + myrs_qcmd(cs, cmd_blk); + spin_unlock_irqrestore(&cs->queue_lock, flags); + + return 0; +} + +static unsigned short myrs_translate_ldev(struct myrs_hba *cs, + struct scsi_device *sdev) +{ + unsigned short ldev_num; + unsigned int chan_offset = + sdev->channel - cs->ctlr_info->physchan_present; + + ldev_num = sdev->id + chan_offset * sdev->host->max_id; + + return ldev_num; +} + +static int myrs_slave_alloc(struct scsi_device *sdev) +{ + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + unsigned char status; + + if (sdev->channel > sdev->host->max_channel) + return 0; + + if (sdev->channel >= cs->ctlr_info->physchan_present) { + struct myrs_ldev_info *ldev_info; + unsigned short ldev_num; + + if (sdev->lun > 0) + return -ENXIO; + + ldev_num = myrs_translate_ldev(cs, sdev); + + ldev_info = kzalloc(sizeof(*ldev_info), GFP_KERNEL|GFP_DMA); + if (!ldev_info) + return -ENOMEM; + + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + if (status != DAC960_V2_NormalCompletion) { + sdev->hostdata = NULL; + kfree(ldev_info); + } else { + enum raid_level level; + + dev_dbg(&sdev->sdev_gendev, + "Logical device mapping %d:%d:%d -> %d\n", + ldev_info->channel, ldev_info->target, + ldev_info->lun, ldev_info->ldev_num); + + sdev->hostdata = ldev_info; + switch (ldev_info->raid_level) { + case DAC960_V2_RAID_Level0: + level = RAID_LEVEL_LINEAR; + break; + case DAC960_V2_RAID_Level1: + level = RAID_LEVEL_1; + break; + case DAC960_V2_RAID_Level3: + case DAC960_V2_RAID_Level3F: + case DAC960_V2_RAID_Level3L: + level = RAID_LEVEL_3; + break; + case DAC960_V2_RAID_Level5: + case DAC960_V2_RAID_Level5L: + level = RAID_LEVEL_5; + break; + case DAC960_V2_RAID_Level6: + level = RAID_LEVEL_6; + break; + case DAC960_V2_RAID_LevelE: + case DAC960_V2_RAID_NewSpan: + case DAC960_V2_RAID_Span: + level = RAID_LEVEL_LINEAR; + break; + case DAC960_V2_RAID_JBOD: + level = RAID_LEVEL_JBOD; + break; + default: + level = RAID_LEVEL_UNKNOWN; + break; + } + raid_set_level(myrs_raid_template, + &sdev->sdev_gendev, level); + if (ldev_info->dev_state != DAC960_V2_Device_Online) { + const char *name; + + name = myrs_devstate_name(ldev_info->dev_state); + sdev_printk(KERN_DEBUG, sdev, + "logical device in state %s\n", + name ? name : "Invalid"); + } + } + } else { + struct myrs_pdev_info *pdev_info; + + pdev_info = kzalloc(sizeof(*pdev_info), GFP_KERNEL|GFP_DMA); + if (!pdev_info) + return -ENOMEM; + + status = myrs_get_pdev_info(cs, sdev->channel, + sdev->id, sdev->lun, + pdev_info); + if (status != DAC960_V2_NormalCompletion) { + sdev->hostdata = NULL; + kfree(pdev_info); + return -ENXIO; + } + sdev->hostdata = pdev_info; + } + return 0; +} + +static int myrs_slave_configure(struct scsi_device *sdev) +{ + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info; + + if (sdev->channel > sdev->host->max_channel) + return -ENXIO; + + if (sdev->channel < cs->ctlr_info->physchan_present) { + /* Skip HBA device */ + if (sdev->type == TYPE_RAID) + return -ENXIO; + sdev->no_uld_attach = 1; + return 0; + } + if (sdev->lun != 0) + return -ENXIO; + + ldev_info = sdev->hostdata; + if (!ldev_info) + return -ENXIO; + if (ldev_info->ldev_control.wce == DAC960_V2_WriteCacheEnabled || + ldev_info->ldev_control.wce == + DAC960_V2_IntelligentWriteCacheEnabled) + sdev->wce_default_on = 1; + sdev->tagged_supported = 1; + return 0; +} + +static void myrs_slave_destroy(struct scsi_device *sdev) +{ + void *hostdata = sdev->hostdata; + + if (hostdata) { + kfree(hostdata); + sdev->hostdata = NULL; + } +} + +struct scsi_host_template myrs_template = { + .module = THIS_MODULE, + .name = "DAC960", + .proc_name = "myrs", + .queuecommand = myrs_queuecommand, + .eh_host_reset_handler = myrs_host_reset, + .slave_alloc = myrs_slave_alloc, + .slave_configure = myrs_slave_configure, + .slave_destroy = myrs_slave_destroy, + .cmd_size = sizeof(struct myrs_cmdblk), + .shost_attrs = myrs_shost_attrs, + .sdev_attrs = myrs_sdev_attrs, + .this_id = -1, +}; + +static struct myrs_hba *myrs_alloc_host(struct pci_dev *pdev, + const struct pci_device_id *entry) +{ + struct Scsi_Host *shost; + struct myrs_hba *cs; + + shost = scsi_host_alloc(&myrs_template, sizeof(struct myrs_hba)); + if (!shost) + return NULL; + + shost->max_cmd_len = 16; + shost->max_lun = 256; + cs = (struct myrs_hba *)shost->hostdata; + mutex_init(&cs->dcmd_mutex); + mutex_init(&cs->cinfo_mutex); + cs->host = shost; + + return cs; +} + +/* + * RAID template functions + */ + +/** + * myrs_is_raid - return boolean indicating device is raid volume + * @dev the device struct object + */ +static int +myrs_is_raid(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + + return (sdev->channel >= cs->ctlr_info->physchan_present) ? 1 : 0; +} + +/** + * myrs_get_resync - get raid volume resync percent complete + * @dev the device struct object + */ +static void +myrs_get_resync(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info = sdev->hostdata; + u8 percent_complete = 0, status; + + if (sdev->channel < cs->ctlr_info->physchan_present || !ldev_info) + return; + if (ldev_info->rbld_active) { + unsigned short ldev_num = ldev_info->ldev_num; + + status = myrs_get_ldev_info(cs, ldev_num, ldev_info); + percent_complete = ldev_info->rbld_lba * 100 / + ldev_info->cfg_devsize; + } + raid_set_resync(myrs_raid_template, dev, percent_complete); +} + +/** + * myrs_get_state - get raid volume status + * @dev the device struct object + */ +static void +myrs_get_state(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct myrs_hba *cs = (struct myrs_hba *)sdev->host->hostdata; + struct myrs_ldev_info *ldev_info = sdev->hostdata; + enum raid_state state = RAID_STATE_UNKNOWN; + + if (sdev->channel < cs->ctlr_info->physchan_present || !ldev_info) + state = RAID_STATE_UNKNOWN; + else { + switch (ldev_info->dev_state) { + case DAC960_V2_Device_Online: + state = RAID_STATE_ACTIVE; + break; + case DAC960_V2_Device_SuspectedCritical: + case DAC960_V2_Device_Critical: + state = RAID_STATE_DEGRADED; + break; + case DAC960_V2_Device_Rebuild: + state = RAID_STATE_RESYNCING; + break; + case DAC960_V2_Device_Unconfigured: + case DAC960_V2_Device_InvalidState: + state = RAID_STATE_UNKNOWN; + break; + default: + state = RAID_STATE_OFFLINE; + } + } + raid_set_state(myrs_raid_template, dev, state); +} + +struct raid_function_template myrs_raid_functions = { + .cookie = &myrs_template, + .is_raid = myrs_is_raid, + .get_resync = myrs_get_resync, + .get_state = myrs_get_state, +}; + +/* + * PCI interface functions + */ +void myrs_flush_cache(struct myrs_hba *cs) +{ + myrs_dev_op(cs, DAC960_V2_FlushDeviceData, DAC960_V2_RAID_Controller); +} + +static void myrs_handle_scsi(struct myrs_hba *cs, struct myrs_cmdblk *cmd_blk, + struct scsi_cmnd *scmd) +{ + unsigned char status; + + if (!cmd_blk) + return; + + BUG_ON(!scmd); + scsi_dma_unmap(scmd); + status = cmd_blk->status; + if (cmd_blk->sense) { + if (status == DAC960_V2_AbnormalCompletion && + cmd_blk->sense_len) { + unsigned int sense_len = SCSI_SENSE_BUFFERSIZE; + + if (sense_len > cmd_blk->sense_len) + sense_len = cmd_blk->sense_len; + memcpy(scmd->sense_buffer, cmd_blk->sense, sense_len); + } + dma_pool_free(cs->sense_pool, cmd_blk->sense, + cmd_blk->sense_addr); + cmd_blk->sense = NULL; + cmd_blk->sense_addr = 0; + } + if (cmd_blk->DCDB) { + dma_pool_free(cs->dcdb_pool, cmd_blk->DCDB, + cmd_blk->DCDB_dma); + cmd_blk->DCDB = NULL; + cmd_blk->DCDB_dma = 0; + } + if (cmd_blk->sgl) { + dma_pool_free(cs->sg_pool, cmd_blk->sgl, + cmd_blk->sgl_addr); + cmd_blk->sgl = NULL; + cmd_blk->sgl_addr = 0; + } + if (cmd_blk->residual) + scsi_set_resid(scmd, cmd_blk->residual); + if (status == DAC960_V2_DeviceNonresponsive || + status == DAC960_V2_DeviceNonresponsive2) + scmd->result = (DID_BAD_TARGET << 16); + else + scmd->result = (DID_OK << 16) || status; + scmd->scsi_done(scmd); +} + +static void myrs_handle_cmdblk(struct myrs_hba *cs, struct myrs_cmdblk *cmd_blk) +{ + if (!cmd_blk) + return; + + if (cmd_blk->complete) { + complete(cmd_blk->complete); + cmd_blk->complete = NULL; + } +} + +static void myrs_monitor(struct work_struct *work) +{ + struct myrs_hba *cs = container_of(work, struct myrs_hba, + monitor_work.work); + struct Scsi_Host *shost = cs->host; + struct myrs_ctlr_info *info = cs->ctlr_info; + unsigned int epoch = cs->fwstat_buf->epoch; + unsigned long interval = MYRS_PRIMARY_MONITOR_INTERVAL; + unsigned char status; + + dev_dbg(&shost->shost_gendev, "monitor tick\n"); + + status = myrs_get_fwstatus(cs); + + if (cs->needs_update) { + cs->needs_update = false; + mutex_lock(&cs->cinfo_mutex); + status = myrs_get_ctlr_info(cs); + mutex_unlock(&cs->cinfo_mutex); + } + if (cs->fwstat_buf->next_evseq - cs->next_evseq > 0) { + status = myrs_get_event(cs, cs->next_evseq, + cs->event_buf); + if (status == DAC960_V2_NormalCompletion) { + myrs_log_event(cs, cs->event_buf); + cs->next_evseq++; + interval = 1; + } + } + + if (time_after(jiffies, cs->secondary_monitor_time + + MYRS_SECONDARY_MONITOR_INTERVAL)) + cs->secondary_monitor_time = jiffies; + + if (info->bg_init_active + + info->ldev_init_active + + info->pdev_init_active + + info->cc_active + + info->rbld_active + + info->exp_active != 0) { + struct scsi_device *sdev; + shost_for_each_device(sdev, shost) { + struct myrs_ldev_info *ldev_info; + int ldev_num; + + if (sdev->channel < info->physchan_present) + continue; + ldev_info = sdev->hostdata; + if (!ldev_info) + continue; + ldev_num = ldev_info->ldev_num; + myrs_get_ldev_info(cs, ldev_num, ldev_info); + } + cs->needs_update = true; + } + if (epoch == cs->epoch && + cs->fwstat_buf->next_evseq == cs->next_evseq && + (cs->needs_update == false || + time_before(jiffies, cs->primary_monitor_time + + MYRS_PRIMARY_MONITOR_INTERVAL))) { + interval = MYRS_SECONDARY_MONITOR_INTERVAL; + } + + if (interval > 1) + cs->primary_monitor_time = jiffies; + queue_delayed_work(cs->work_q, &cs->monitor_work, interval); +} + +static bool myrs_create_mempools(struct pci_dev *pdev, struct myrs_hba *cs) +{ + struct Scsi_Host *shost = cs->host; + size_t elem_size, elem_align; + + elem_align = sizeof(struct myrs_sge); + elem_size = shost->sg_tablesize * elem_align; + cs->sg_pool = dma_pool_create("myrs_sg", &pdev->dev, + elem_size, elem_align, 0); + if (cs->sg_pool == NULL) { + shost_printk(KERN_ERR, shost, + "Failed to allocate SG pool\n"); + return false; + } + + cs->sense_pool = dma_pool_create("myrs_sense", &pdev->dev, + MYRS_SENSE_SIZE, sizeof(int), 0); + if (cs->sense_pool == NULL) { + dma_pool_destroy(cs->sg_pool); + cs->sg_pool = NULL; + shost_printk(KERN_ERR, shost, + "Failed to allocate sense data pool\n"); + return false; + } + + cs->dcdb_pool = dma_pool_create("myrs_dcdb", &pdev->dev, + MYRS_DCDB_SIZE, + sizeof(unsigned char), 0); + if (!cs->dcdb_pool) { + dma_pool_destroy(cs->sg_pool); + cs->sg_pool = NULL; + dma_pool_destroy(cs->sense_pool); + cs->sense_pool = NULL; + shost_printk(KERN_ERR, shost, + "Failed to allocate DCDB pool\n"); + return false; + } + + snprintf(cs->work_q_name, sizeof(cs->work_q_name), + "myrs_wq_%d", shost->host_no); + cs->work_q = create_singlethread_workqueue(cs->work_q_name); + if (!cs->work_q) { + dma_pool_destroy(cs->dcdb_pool); + cs->dcdb_pool = NULL; + dma_pool_destroy(cs->sg_pool); + cs->sg_pool = NULL; + dma_pool_destroy(cs->sense_pool); + cs->sense_pool = NULL; + shost_printk(KERN_ERR, shost, + "Failed to create workqueue\n"); + return false; + } + + /* Initialize the Monitoring Timer. */ + INIT_DELAYED_WORK(&cs->monitor_work, myrs_monitor); + queue_delayed_work(cs->work_q, &cs->monitor_work, 1); + + return true; +} + +static void myrs_destroy_mempools(struct myrs_hba *cs) +{ + cancel_delayed_work_sync(&cs->monitor_work); + destroy_workqueue(cs->work_q); + + if (cs->sg_pool) { + dma_pool_destroy(cs->sg_pool); + cs->sg_pool = NULL; + } + + if (cs->dcdb_pool) { + dma_pool_destroy(cs->dcdb_pool); + cs->dcdb_pool = NULL; + } + if (cs->sense_pool) { + dma_pool_destroy(cs->sense_pool); + cs->sense_pool = NULL; + } +} + +static void myrs_unmap(struct myrs_hba *cs) +{ + if (cs->event_buf) { + kfree(cs->event_buf); + cs->event_buf = NULL; + } + if (cs->ctlr_info) { + kfree(cs->ctlr_info); + cs->ctlr_info = NULL; + } + if (cs->fwstat_buf) { + dma_free_coherent(&cs->pdev->dev, sizeof(struct myrs_fwstat), + cs->fwstat_buf, cs->fwstat_addr); + cs->fwstat_buf = NULL; + } + if (cs->first_stat_mbox) { + dma_free_coherent(&cs->pdev->dev, cs->stat_mbox_size, + cs->first_stat_mbox, cs->stat_mbox_addr); + cs->first_stat_mbox = NULL; + } + if (cs->first_cmd_mbox) { + dma_free_coherent(&cs->pdev->dev, cs->cmd_mbox_size, + cs->first_cmd_mbox, cs->cmd_mbox_addr); + cs->first_cmd_mbox = NULL; + } +} + +static void myrs_cleanup(struct myrs_hba *cs) +{ + struct pci_dev *pdev = cs->pdev; + + /* Free the memory mailbox, status, and related structures */ + myrs_unmap(cs); + + if (cs->mmio_base) { + cs->disable_intr(cs); + iounmap(cs->mmio_base); + } + if (cs->irq) + free_irq(cs->irq, cs); + if (cs->io_addr) + release_region(cs->io_addr, 0x80); + iounmap(cs->mmio_base); + pci_set_drvdata(pdev, NULL); + pci_disable_device(pdev); + scsi_host_put(cs->host); +} + +static struct myrs_hba *myrs_detect(struct pci_dev *pdev, + const struct pci_device_id *entry) +{ + struct myrs_privdata *privdata = + (struct myrs_privdata *)entry->driver_data; + irq_handler_t irq_handler = privdata->irq_handler; + unsigned int mmio_size = privdata->io_mem_size; + struct myrs_hba *cs = NULL; + + cs = myrs_alloc_host(pdev, entry); + if (!cs) { + dev_err(&pdev->dev, "Unable to allocate Controller\n"); + return NULL; + } + cs->pdev = pdev; + + if (pci_enable_device(pdev)) + goto Failure; + + cs->pci_addr = pci_resource_start(pdev, 0); + + pci_set_drvdata(pdev, cs); + spin_lock_init(&cs->queue_lock); + /* Map the Controller Register Window. */ + if (mmio_size < PAGE_SIZE) + mmio_size = PAGE_SIZE; + cs->mmio_base = ioremap_nocache(cs->pci_addr & PAGE_MASK, mmio_size); + if (cs->mmio_base == NULL) { + dev_err(&pdev->dev, + "Unable to map Controller Register Window\n"); + goto Failure; + } + + cs->io_base = cs->mmio_base + (cs->pci_addr & ~PAGE_MASK); + if (privdata->hw_init(pdev, cs, cs->io_base)) + goto Failure; + + /* Acquire shared access to the IRQ Channel. */ + if (request_irq(pdev->irq, irq_handler, IRQF_SHARED, "myrs", cs) < 0) { + dev_err(&pdev->dev, + "Unable to acquire IRQ Channel %d\n", pdev->irq); + goto Failure; + } + cs->irq = pdev->irq; + return cs; + +Failure: + dev_err(&pdev->dev, + "Failed to initialize Controller\n"); + myrs_cleanup(cs); + return NULL; +} + +/** + * myrs_err_status reports Controller BIOS Messages passed through + the Error Status Register when the driver performs the BIOS handshaking. + It returns true for fatal errors and false otherwise. +*/ + +static bool myrs_err_status(struct myrs_hba *cs, unsigned char status, + unsigned char parm0, unsigned char parm1) +{ + struct pci_dev *pdev = cs->pdev; + + switch (status) { + case 0x00: + dev_info(&pdev->dev, + "Physical Device %d:%d Not Responding\n", + parm1, parm0); + break; + case 0x08: + dev_notice(&pdev->dev, "Spinning Up Drives\n"); + break; + case 0x30: + dev_notice(&pdev->dev, "Configuration Checksum Error\n"); + break; + case 0x60: + dev_notice(&pdev->dev, "Mirror Race Recovery Failed\n"); + break; + case 0x70: + dev_notice(&pdev->dev, "Mirror Race Recovery In Progress\n"); + break; + case 0x90: + dev_notice(&pdev->dev, "Physical Device %d:%d COD Mismatch\n", + parm1, parm0); + break; + case 0xA0: + dev_notice(&pdev->dev, "Logical Drive Installation Aborted\n"); + break; + case 0xB0: + dev_notice(&pdev->dev, "Mirror Race On A Critical Logical Drive\n"); + break; + case 0xD0: + dev_notice(&pdev->dev, "New Controller Configuration Found\n"); + break; + case 0xF0: + dev_err(&pdev->dev, "Fatal Memory Parity Error\n"); + return true; + default: + dev_err(&pdev->dev, "Unknown Initialization Error %02X\n", + status); + return true; + } + return false; +} + +/* + * Hardware-specific functions + */ + +/* + * DAC960 GEM Series Controllers. + */ + +static inline +void DAC960_GEM_HardwareMailboxNewCommand(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_NEW_CMD << 24); + writel(val, base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); +} + +static inline +void DAC960_GEM_AcknowledgeHardwareMailboxStatus(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_ACK_STS << 24); + writel(val, base + DAC960_GEM_InboundDoorBellRegisterClearOffset); +} + +static inline +void DAC960_GEM_GenerateInterrupt(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_IDB_GEN_IRQ << 24); + writel(val, base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); +} + +static inline +void DAC960_GEM_ControllerReset(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_IDB_CTRL_RESET << 24); + writel(val, base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); +} + +static inline +void DAC960_GEM_MemoryMailboxNewCommand(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_IDB_HWMBOX_NEW_CMD << 24); + writel(val, base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); +} + +static inline +bool DAC960_GEM_HardwareMailboxFullP(void __iomem *base) +{ + __le32 val; + + val = readl(base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); + return (le32_to_cpu(val) >> 24) & DAC960_GEM_IDB_HWMBOX_FULL; +} + +static inline +bool DAC960_GEM_InitializationInProgressP(void __iomem *base) +{ + __le32 val; + + val = readl(base + DAC960_GEM_InboundDoorBellRegisterReadSetOffset); + return (le32_to_cpu(val) >> 24) & DAC960_GEM_IDB_INIT_IN_PROGRESS; +} + +static inline +void DAC960_GEM_AcknowledgeHardwareMailboxInterrupt(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_ODB_HWMBOX_ACK_IRQ << 24); + writel(val, base + DAC960_GEM_OutboundDoorBellRegisterClearOffset); +} + +static inline +void DAC960_GEM_AcknowledgeMemoryMailboxInterrupt(void __iomem *base) +{ + __le32 val = cpu_to_le32(DAC960_GEM_ODB_MMBOX_ACK_IRQ << 24); + writel(val, base + DAC960_GEM_OutboundDoorBellRegisterClearOffset); +} + +static inline +void DAC960_GEM_AcknowledgeInterrupt(void __iomem *base) +{ + __le32 val = cpu_to_le32((DAC960_GEM_ODB_HWMBOX_ACK_IRQ | + DAC960_GEM_ODB_MMBOX_ACK_IRQ) << 24); + writel(val, base + DAC960_GEM_OutboundDoorBellRegisterClearOffset); +} + +static inline +bool DAC960_GEM_HardwareMailboxStatusAvailableP(void __iomem *base) +{ + __le32 val; + + val = readl(base + DAC960_GEM_OutboundDoorBellRegisterReadSetOffset); + return (le32_to_cpu(val) >> 24) & DAC960_GEM_ODB_HWMBOX_STS_AVAIL; +} + +static inline +bool DAC960_GEM_MemoryMailboxStatusAvailableP(void __iomem *base) +{ + __le32 val; + + val = readl(base + DAC960_GEM_OutboundDoorBellRegisterReadSetOffset); + return (le32_to_cpu(val) >> 24) & DAC960_GEM_ODB_MMBOX_STS_AVAIL; +} + +static inline +void DAC960_GEM_EnableInterrupts(void __iomem *base) +{ + __le32 val = cpu_to_le32((DAC960_GEM_IRQMASK_HWMBOX_IRQ | + DAC960_GEM_IRQMASK_MMBOX_IRQ) << 24); + writel(val, base + DAC960_GEM_InterruptMaskRegisterClearOffset); +} + +static inline +void DAC960_GEM_DisableInterrupts(void __iomem *base) +{ + __le32 val = 0; + writel(val, base + DAC960_GEM_InterruptMaskRegisterReadSetOffset); +} + +static inline +bool DAC960_GEM_InterruptsEnabledP(void __iomem *base) +{ + __le32 val; + + val = readl(base + DAC960_GEM_InterruptMaskRegisterReadSetOffset); + return !((le32_to_cpu(val) >> 24) & + (DAC960_GEM_IRQMASK_HWMBOX_IRQ | + DAC960_GEM_IRQMASK_MMBOX_IRQ)); +} + +static inline +void DAC960_GEM_WriteCommandMailbox(union myrs_cmd_mbox *mem_mbox, + union myrs_cmd_mbox *mbox) +{ + memcpy(&mem_mbox->Words[1], &mbox->Words[1], + sizeof(union myrs_cmd_mbox) - sizeof(unsigned int)); + wmb(); + mem_mbox->Words[0] = mbox->Words[0]; + mb(); +} + +static inline +void DAC960_GEM_WriteHardwareMailbox(void __iomem *base, + dma_addr_t CommandMailboxDMA) +{ + dma_addr_writeql(CommandMailboxDMA, + base + DAC960_GEM_CommandMailboxBusAddressOffset); +} + +static inline unsigned short +DAC960_GEM_ReadCommandIdentifier(void __iomem *base) +{ + return readw(base + DAC960_GEM_CommandStatusOffset); +} + +static inline unsigned char +DAC960_GEM_ReadCommandStatus(void __iomem *base) +{ + return readw(base + DAC960_GEM_CommandStatusOffset + 2); +} + +static inline bool +DAC960_GEM_ReadErrorStatus(void __iomem *base, + unsigned char *ErrorStatus, + unsigned char *Parameter0, + unsigned char *Parameter1) +{ + __le32 val; + + val = readl(base + DAC960_GEM_ErrorStatusRegisterReadSetOffset); + if (!((le32_to_cpu(val) >> 24) & DAC960_GEM_ERRSTS_PENDING)) + return false; + *ErrorStatus = val & ~(DAC960_GEM_ERRSTS_PENDING << 24); + *Parameter0 = + readb(base + DAC960_GEM_CommandMailboxBusAddressOffset + 0); + *Parameter1 = + readb(base + DAC960_GEM_CommandMailboxBusAddressOffset + 1); + writel(0x03000000, base + + DAC960_GEM_ErrorStatusRegisterClearOffset); + return true; +} + +static inline unsigned char +DAC960_GEM_MailboxInit(void __iomem *base, dma_addr_t mbox_addr) +{ + unsigned char status; + + while (DAC960_GEM_HardwareMailboxFullP(base)) + udelay(1); + DAC960_GEM_WriteHardwareMailbox(base, mbox_addr); + DAC960_GEM_HardwareMailboxNewCommand(base); + while (!DAC960_GEM_HardwareMailboxStatusAvailableP(base)) + udelay(1); + status = DAC960_GEM_ReadCommandStatus(base); + DAC960_GEM_AcknowledgeHardwareMailboxInterrupt(base); + DAC960_GEM_AcknowledgeHardwareMailboxStatus(base); + + return status; +} + +static int DAC960_GEM_HardwareInit(struct pci_dev *pdev, + struct myrs_hba *cs, void __iomem *base) +{ + int timeout = 0; + unsigned char status, parm0, parm1; + + DAC960_GEM_DisableInterrupts(base); + DAC960_GEM_AcknowledgeHardwareMailboxStatus(base); + udelay(1000); + while (DAC960_GEM_InitializationInProgressP(base) && + timeout < MYRS_MAILBOX_TIMEOUT) { + if (DAC960_GEM_ReadErrorStatus(base, &status, + &parm0, &parm1) && + myrs_err_status(cs, status, parm0, parm1)) + return -EIO; + udelay(10); + timeout++; + } + if (timeout == MYRS_MAILBOX_TIMEOUT) { + dev_err(&pdev->dev, + "Timeout waiting for Controller Initialisation\n"); + return -ETIMEDOUT; + } + if (!myrs_enable_mmio_mbox(cs, DAC960_GEM_MailboxInit)) { + dev_err(&pdev->dev, + "Unable to Enable Memory Mailbox Interface\n"); + DAC960_GEM_ControllerReset(base); + return -EAGAIN; + } + DAC960_GEM_EnableInterrupts(base); + cs->write_cmd_mbox = DAC960_GEM_WriteCommandMailbox; + cs->get_cmd_mbox = DAC960_GEM_MemoryMailboxNewCommand; + cs->disable_intr = DAC960_GEM_DisableInterrupts; + cs->reset = DAC960_GEM_ControllerReset; + return 0; +} + +static irqreturn_t DAC960_GEM_InterruptHandler(int irq, + void *DeviceIdentifier) +{ + struct myrs_hba *cs = DeviceIdentifier; + void __iomem *base = cs->io_base; + struct myrs_stat_mbox *next_stat_mbox; + unsigned long flags; + + spin_lock_irqsave(&cs->queue_lock, flags); + DAC960_GEM_AcknowledgeInterrupt(base); + next_stat_mbox = cs->next_stat_mbox; + while (next_stat_mbox->id > 0) { + unsigned short id = next_stat_mbox->id; + struct scsi_cmnd *scmd = NULL; + struct myrs_cmdblk *cmd_blk = NULL; + + if (id == MYRS_DCMD_TAG) + cmd_blk = &cs->dcmd_blk; + else if (id == MYRS_MCMD_TAG) + cmd_blk = &cs->mcmd_blk; + else { + scmd = scsi_host_find_tag(cs->host, id - 3); + if (scmd) + cmd_blk = scsi_cmd_priv(scmd); + } + if (cmd_blk) { + cmd_blk->status = next_stat_mbox->status; + cmd_blk->sense_len = next_stat_mbox->sense_len; + cmd_blk->residual = next_stat_mbox->residual; + } else + dev_err(&cs->pdev->dev, + "Unhandled command completion %d\n", id); + + memset(next_stat_mbox, 0, sizeof(struct myrs_stat_mbox)); + if (++next_stat_mbox > cs->last_stat_mbox) + next_stat_mbox = cs->first_stat_mbox; + + if (id < 3) + myrs_handle_cmdblk(cs, cmd_blk); + else + myrs_handle_scsi(cs, cmd_blk, scmd); + } + cs->next_stat_mbox = next_stat_mbox; + spin_unlock_irqrestore(&cs->queue_lock, flags); + return IRQ_HANDLED; +} + +struct myrs_privdata DAC960_GEM_privdata = { + .hw_init = DAC960_GEM_HardwareInit, + .irq_handler = DAC960_GEM_InterruptHandler, + .io_mem_size = DAC960_GEM_RegisterWindowSize, +}; + +/* + * DAC960 BA Series Controllers. + */ + +static inline +void DAC960_BA_HardwareMailboxNewCommand(void __iomem *base) +{ + writeb(DAC960_BA_IDB_HWMBOX_NEW_CMD, + base + DAC960_BA_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_AcknowledgeHardwareMailboxStatus(void __iomem *base) +{ + writeb(DAC960_BA_IDB_HWMBOX_ACK_STS, + base + DAC960_BA_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_GenerateInterrupt(void __iomem *base) +{ + writeb(DAC960_BA_IDB_GEN_IRQ, + base + DAC960_BA_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_ControllerReset(void __iomem *base) +{ + writeb(DAC960_BA_IDB_CTRL_RESET, + base + DAC960_BA_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_MemoryMailboxNewCommand(void __iomem *base) +{ + writeb(DAC960_BA_IDB_MMBOX_NEW_CMD, + base + DAC960_BA_InboundDoorBellRegisterOffset); +} + +static inline +bool DAC960_BA_HardwareMailboxFullP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_BA_InboundDoorBellRegisterOffset); + return !(val & DAC960_BA_IDB_HWMBOX_EMPTY); +} + +static inline +bool DAC960_BA_InitializationInProgressP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_BA_InboundDoorBellRegisterOffset); + return !(val & DAC960_BA_IDB_INIT_DONE); +} + +static inline +void DAC960_BA_AcknowledgeHardwareMailboxInterrupt(void __iomem *base) +{ + writeb(DAC960_BA_ODB_HWMBOX_ACK_IRQ, + base + DAC960_BA_OutboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_AcknowledgeMemoryMailboxInterrupt(void __iomem *base) +{ + writeb(DAC960_BA_ODB_MMBOX_ACK_IRQ, + base + DAC960_BA_OutboundDoorBellRegisterOffset); +} + +static inline +void DAC960_BA_AcknowledgeInterrupt(void __iomem *base) +{ + writeb(DAC960_BA_ODB_HWMBOX_ACK_IRQ | DAC960_BA_ODB_MMBOX_ACK_IRQ, + base + DAC960_BA_OutboundDoorBellRegisterOffset); +} + +static inline +bool DAC960_BA_HardwareMailboxStatusAvailableP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_BA_OutboundDoorBellRegisterOffset); + return val & DAC960_BA_ODB_HWMBOX_STS_AVAIL; +} + +static inline +bool DAC960_BA_MemoryMailboxStatusAvailableP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_BA_OutboundDoorBellRegisterOffset); + return val & DAC960_BA_ODB_MMBOX_STS_AVAIL; +} + +static inline +void DAC960_BA_EnableInterrupts(void __iomem *base) +{ + writeb(~DAC960_BA_IRQMASK_DISABLE_IRQ, + base + DAC960_BA_InterruptMaskRegisterOffset); +} + +static inline +void DAC960_BA_DisableInterrupts(void __iomem *base) +{ + writeb(0xFF, base + DAC960_BA_InterruptMaskRegisterOffset); +} + +static inline +bool DAC960_BA_InterruptsEnabledP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_BA_InterruptMaskRegisterOffset); + return !(val & DAC960_BA_IRQMASK_DISABLE_IRQ); +} + +static inline +void DAC960_BA_WriteCommandMailbox(union myrs_cmd_mbox *mem_mbox, + union myrs_cmd_mbox *mbox) +{ + memcpy(&mem_mbox->Words[1], &mbox->Words[1], + sizeof(union myrs_cmd_mbox) - sizeof(unsigned int)); + wmb(); + mem_mbox->Words[0] = mbox->Words[0]; + mb(); +} + + +static inline +void DAC960_BA_WriteHardwareMailbox(void __iomem *base, + dma_addr_t CommandMailboxDMA) +{ + dma_addr_writeql(CommandMailboxDMA, + base + DAC960_BA_CommandMailboxBusAddressOffset); +} + +static inline unsigned short +DAC960_BA_ReadCommandIdentifier(void __iomem *base) +{ + return readw(base + DAC960_BA_CommandStatusOffset); +} + +static inline unsigned char +DAC960_BA_ReadCommandStatus(void __iomem *base) +{ + return readw(base + DAC960_BA_CommandStatusOffset + 2); +} + +static inline bool +DAC960_BA_ReadErrorStatus(void __iomem *base, + unsigned char *ErrorStatus, + unsigned char *Parameter0, + unsigned char *Parameter1) +{ + u8 val; + + val = readb(base + DAC960_BA_ErrorStatusRegisterOffset); + if (!(val & DAC960_BA_ERRSTS_PENDING)) + return false; + val &= ~DAC960_BA_ERRSTS_PENDING; + *ErrorStatus = val; + *Parameter0 = readb(base + DAC960_BA_CommandMailboxBusAddressOffset + 0); + *Parameter1 = readb(base + DAC960_BA_CommandMailboxBusAddressOffset + 1); + writeb(0xFF, base + DAC960_BA_ErrorStatusRegisterOffset); + return true; +} + +static inline unsigned char +DAC960_BA_MailboxInit(void __iomem *base, dma_addr_t mbox_addr) +{ + unsigned char status; + + while (DAC960_BA_HardwareMailboxFullP(base)) + udelay(1); + DAC960_BA_WriteHardwareMailbox(base, mbox_addr); + DAC960_BA_HardwareMailboxNewCommand(base); + while (!DAC960_BA_HardwareMailboxStatusAvailableP(base)) + udelay(1); + status = DAC960_BA_ReadCommandStatus(base); + DAC960_BA_AcknowledgeHardwareMailboxInterrupt(base); + DAC960_BA_AcknowledgeHardwareMailboxStatus(base); + + return status; +} + +static int DAC960_BA_HardwareInit(struct pci_dev *pdev, + struct myrs_hba *cs, void __iomem *base) +{ + int timeout = 0; + unsigned char status, parm0, parm1; + + DAC960_BA_DisableInterrupts(base); + DAC960_BA_AcknowledgeHardwareMailboxStatus(base); + udelay(1000); + while (DAC960_BA_InitializationInProgressP(base) && + timeout < MYRS_MAILBOX_TIMEOUT) { + if (DAC960_BA_ReadErrorStatus(base, &status, + &parm0, &parm1) && + myrs_err_status(cs, status, parm0, parm1)) + return -EIO; + udelay(10); + timeout++; + } + if (timeout == MYRS_MAILBOX_TIMEOUT) { + dev_err(&pdev->dev, + "Timeout waiting for Controller Initialisation\n"); + return -ETIMEDOUT; + } + if (!myrs_enable_mmio_mbox(cs, DAC960_BA_MailboxInit)) { + dev_err(&pdev->dev, + "Unable to Enable Memory Mailbox Interface\n"); + DAC960_BA_ControllerReset(base); + return -EAGAIN; + } + DAC960_BA_EnableInterrupts(base); + cs->write_cmd_mbox = DAC960_BA_WriteCommandMailbox; + cs->get_cmd_mbox = DAC960_BA_MemoryMailboxNewCommand; + cs->disable_intr = DAC960_BA_DisableInterrupts; + cs->reset = DAC960_BA_ControllerReset; + return 0; +} + +static irqreturn_t DAC960_BA_InterruptHandler(int irq, + void *DeviceIdentifier) +{ + struct myrs_hba *cs = DeviceIdentifier; + void __iomem *base = cs->io_base; + struct myrs_stat_mbox *next_stat_mbox; + unsigned long flags; + + spin_lock_irqsave(&cs->queue_lock, flags); + DAC960_BA_AcknowledgeInterrupt(base); + next_stat_mbox = cs->next_stat_mbox; + while (next_stat_mbox->id > 0) { + unsigned short id = next_stat_mbox->id; + struct scsi_cmnd *scmd = NULL; + struct myrs_cmdblk *cmd_blk = NULL; + + if (id == MYRS_DCMD_TAG) + cmd_blk = &cs->dcmd_blk; + else if (id == MYRS_MCMD_TAG) + cmd_blk = &cs->mcmd_blk; + else { + scmd = scsi_host_find_tag(cs->host, id - 3); + if (scmd) + cmd_blk = scsi_cmd_priv(scmd); + } + if (cmd_blk) { + cmd_blk->status = next_stat_mbox->status; + cmd_blk->sense_len = next_stat_mbox->sense_len; + cmd_blk->residual = next_stat_mbox->residual; + } else + dev_err(&cs->pdev->dev, + "Unhandled command completion %d\n", id); + + memset(next_stat_mbox, 0, sizeof(struct myrs_stat_mbox)); + if (++next_stat_mbox > cs->last_stat_mbox) + next_stat_mbox = cs->first_stat_mbox; + + if (id < 3) + myrs_handle_cmdblk(cs, cmd_blk); + else + myrs_handle_scsi(cs, cmd_blk, scmd); + } + cs->next_stat_mbox = next_stat_mbox; + spin_unlock_irqrestore(&cs->queue_lock, flags); + return IRQ_HANDLED; +} + +struct myrs_privdata DAC960_BA_privdata = { + .hw_init = DAC960_BA_HardwareInit, + .irq_handler = DAC960_BA_InterruptHandler, + .io_mem_size = DAC960_BA_RegisterWindowSize, +}; + +/* + * DAC960 LP Series Controllers. + */ + +static inline +void DAC960_LP_HardwareMailboxNewCommand(void __iomem *base) +{ + writeb(DAC960_LP_IDB_HWMBOX_NEW_CMD, + base + DAC960_LP_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_AcknowledgeHardwareMailboxStatus(void __iomem *base) +{ + writeb(DAC960_LP_IDB_HWMBOX_ACK_STS, + base + DAC960_LP_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_GenerateInterrupt(void __iomem *base) +{ + writeb(DAC960_LP_IDB_GEN_IRQ, + base + DAC960_LP_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_ControllerReset(void __iomem *base) +{ + writeb(DAC960_LP_IDB_CTRL_RESET, + base + DAC960_LP_InboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_MemoryMailboxNewCommand(void __iomem *base) +{ + writeb(DAC960_LP_IDB_MMBOX_NEW_CMD, + base + DAC960_LP_InboundDoorBellRegisterOffset); +} + +static inline +bool DAC960_LP_HardwareMailboxFullP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_LP_InboundDoorBellRegisterOffset); + return val & DAC960_LP_IDB_HWMBOX_FULL; +} + +static inline +bool DAC960_LP_InitializationInProgressP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_LP_InboundDoorBellRegisterOffset); + return val & DAC960_LP_IDB_INIT_IN_PROGRESS; +} + +static inline +void DAC960_LP_AcknowledgeHardwareMailboxInterrupt(void __iomem *base) +{ + writeb(DAC960_LP_ODB_HWMBOX_ACK_IRQ, + base + DAC960_LP_OutboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_AcknowledgeMemoryMailboxInterrupt(void __iomem *base) +{ + writeb(DAC960_LP_ODB_MMBOX_ACK_IRQ, + base + DAC960_LP_OutboundDoorBellRegisterOffset); +} + +static inline +void DAC960_LP_AcknowledgeInterrupt(void __iomem *base) +{ + writeb(DAC960_LP_ODB_HWMBOX_ACK_IRQ | DAC960_LP_ODB_MMBOX_ACK_IRQ, + base + DAC960_LP_OutboundDoorBellRegisterOffset); +} + +static inline +bool DAC960_LP_HardwareMailboxStatusAvailableP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_LP_OutboundDoorBellRegisterOffset); + return val & DAC960_LP_ODB_HWMBOX_STS_AVAIL; +} + +static inline +bool DAC960_LP_MemoryMailboxStatusAvailableP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_LP_OutboundDoorBellRegisterOffset); + return val & DAC960_LP_ODB_MMBOX_STS_AVAIL; +} + +static inline +void DAC960_LP_EnableInterrupts(void __iomem *base) +{ + writeb(~DAC960_LP_IRQMASK_DISABLE_IRQ, + base + DAC960_LP_InterruptMaskRegisterOffset); +} + +static inline +void DAC960_LP_DisableInterrupts(void __iomem *base) +{ + writeb(0xFF, + base + DAC960_LP_InterruptMaskRegisterOffset); +} + +static inline +bool DAC960_LP_InterruptsEnabledP(void __iomem *base) +{ + u8 val; + + val = readb(base + DAC960_LP_InterruptMaskRegisterOffset); + return !(val & DAC960_LP_IRQMASK_DISABLE_IRQ); +} + +static inline +void DAC960_LP_WriteCommandMailbox(union myrs_cmd_mbox *mem_mbox, + union myrs_cmd_mbox *mbox) +{ + memcpy(&mem_mbox->Words[1], &mbox->Words[1], + sizeof(union myrs_cmd_mbox) - sizeof(unsigned int)); + wmb(); + mem_mbox->Words[0] = mbox->Words[0]; + mb(); +} + +static inline +void DAC960_LP_WriteHardwareMailbox(void __iomem *base, + dma_addr_t CommandMailboxDMA) +{ + dma_addr_writeql(CommandMailboxDMA, + base + DAC960_LP_CommandMailboxBusAddressOffset); +} + +static inline unsigned short +DAC960_LP_ReadCommandIdentifier(void __iomem *base) +{ + return readw(base + DAC960_LP_CommandStatusOffset); +} + +static inline unsigned char +DAC960_LP_ReadCommandStatus(void __iomem *base) +{ + return readw(base + DAC960_LP_CommandStatusOffset + 2); +} + +static inline bool +DAC960_LP_ReadErrorStatus(void __iomem *base, + unsigned char *ErrorStatus, + unsigned char *Parameter0, + unsigned char *Parameter1) +{ + u8 val; + + val = readb(base + DAC960_LP_ErrorStatusRegisterOffset); + if (!(val & DAC960_LP_ERRSTS_PENDING)) + return false; + val &= ~DAC960_LP_ERRSTS_PENDING; + *ErrorStatus = val; + *Parameter0 = + readb(base + DAC960_LP_CommandMailboxBusAddressOffset + 0); + *Parameter1 = + readb(base + DAC960_LP_CommandMailboxBusAddressOffset + 1); + writeb(0xFF, base + DAC960_LP_ErrorStatusRegisterOffset); + return true; +} + +static inline unsigned char +DAC960_LP_MailboxInit(void __iomem *base, dma_addr_t mbox_addr) +{ + unsigned char status; + + while (DAC960_LP_HardwareMailboxFullP(base)) + udelay(1); + DAC960_LP_WriteHardwareMailbox(base, mbox_addr); + DAC960_LP_HardwareMailboxNewCommand(base); + while (!DAC960_LP_HardwareMailboxStatusAvailableP(base)) + udelay(1); + status = DAC960_LP_ReadCommandStatus(base); + DAC960_LP_AcknowledgeHardwareMailboxInterrupt(base); + DAC960_LP_AcknowledgeHardwareMailboxStatus(base); + + return status; +} + +static int DAC960_LP_HardwareInit(struct pci_dev *pdev, + struct myrs_hba *cs, void __iomem *base) +{ + int timeout = 0; + unsigned char status, parm0, parm1; + + DAC960_LP_DisableInterrupts(base); + DAC960_LP_AcknowledgeHardwareMailboxStatus(base); + udelay(1000); + while (DAC960_LP_InitializationInProgressP(base) && + timeout < MYRS_MAILBOX_TIMEOUT) { + if (DAC960_LP_ReadErrorStatus(base, &status, + &parm0, &parm1) && + myrs_err_status(cs, status,parm0, parm1)) + return -EIO; + udelay(10); + timeout++; + } + if (timeout == MYRS_MAILBOX_TIMEOUT) { + dev_err(&pdev->dev, + "Timeout waiting for Controller Initialisation\n"); + return -ETIMEDOUT; + } + if (!myrs_enable_mmio_mbox(cs, DAC960_LP_MailboxInit)) { + dev_err(&pdev->dev, + "Unable to Enable Memory Mailbox Interface\n"); + DAC960_LP_ControllerReset(base); + return -ENODEV; + } + DAC960_LP_EnableInterrupts(base); + cs->write_cmd_mbox = DAC960_LP_WriteCommandMailbox; + cs->get_cmd_mbox = DAC960_LP_MemoryMailboxNewCommand; + cs->disable_intr = DAC960_LP_DisableInterrupts; + cs->reset = DAC960_LP_ControllerReset; + + return 0; +} + +static irqreturn_t DAC960_LP_InterruptHandler(int irq, + void *DeviceIdentifier) +{ + struct myrs_hba *cs = DeviceIdentifier; + void __iomem *base = cs->io_base; + struct myrs_stat_mbox *next_stat_mbox; + unsigned long flags; + + spin_lock_irqsave(&cs->queue_lock, flags); + DAC960_LP_AcknowledgeInterrupt(base); + next_stat_mbox = cs->next_stat_mbox; + while (next_stat_mbox->id > 0) { + unsigned short id = next_stat_mbox->id; + struct scsi_cmnd *scmd = NULL; + struct myrs_cmdblk *cmd_blk = NULL; + + if (id == MYRS_DCMD_TAG) + cmd_blk = &cs->dcmd_blk; + else if (id == MYRS_MCMD_TAG) + cmd_blk = &cs->mcmd_blk; + else { + scmd = scsi_host_find_tag(cs->host, id - 3); + if (scmd) + cmd_blk = scsi_cmd_priv(scmd); + } + if (cmd_blk) { + cmd_blk->status = next_stat_mbox->status; + cmd_blk->sense_len = next_stat_mbox->sense_len; + cmd_blk->residual = next_stat_mbox->residual; + } else + dev_err(&cs->pdev->dev, + "Unhandled command completion %d\n", id); + + memset(next_stat_mbox, 0, sizeof(struct myrs_stat_mbox)); + if (++next_stat_mbox > cs->last_stat_mbox) + next_stat_mbox = cs->first_stat_mbox; + + if (id < 3) + myrs_handle_cmdblk(cs, cmd_blk); + else + myrs_handle_scsi(cs, cmd_blk, scmd); + } + cs->next_stat_mbox = next_stat_mbox; + spin_unlock_irqrestore(&cs->queue_lock, flags); + return IRQ_HANDLED; +} + +struct myrs_privdata DAC960_LP_privdata = { + .hw_init = DAC960_LP_HardwareInit, + .irq_handler = DAC960_LP_InterruptHandler, + .io_mem_size = DAC960_LP_RegisterWindowSize, +}; + +/* + * Module functions + */ +static int +myrs_probe(struct pci_dev *dev, const struct pci_device_id *entry) +{ + struct myrs_hba *cs; + int ret; + + cs = myrs_detect(dev, entry); + if (!cs) + return -ENODEV; + + ret = myrs_get_config(cs); + if (ret < 0) { + myrs_cleanup(cs); + return ret; + } + + if (!myrs_create_mempools(dev, cs)) { + ret = -ENOMEM; + goto failed; + } + + ret = scsi_add_host(cs->host, &dev->dev); + if (ret) { + dev_err(&dev->dev, "scsi_add_host failed with %d\n", ret); + myrs_destroy_mempools(cs); + goto failed; + } + scsi_scan_host(cs->host); + return 0; +failed: + myrs_cleanup(cs); + return ret; +} + + +static void myrs_remove(struct pci_dev *pdev) +{ + struct myrs_hba *cs = pci_get_drvdata(pdev); + + if (cs == NULL) + return; + + shost_printk(KERN_NOTICE, cs->host, "Flushing Cache..."); + myrs_flush_cache(cs); + myrs_destroy_mempools(cs); + myrs_cleanup(cs); +} + + +static const struct pci_device_id myrs_id_table[] = { + { + .vendor = PCI_VENDOR_ID_MYLEX, + .device = PCI_DEVICE_ID_MYLEX_DAC960_GEM, + .subvendor = PCI_SUBVENDOR_ID_MYLEX, + .subdevice = PCI_ANY_ID, + .driver_data = (unsigned long) &DAC960_GEM_privdata, + }, + { + .vendor = PCI_VENDOR_ID_MYLEX, + .device = PCI_DEVICE_ID_MYLEX_DAC960_BA, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (unsigned long) &DAC960_BA_privdata, + }, + { + .vendor = PCI_VENDOR_ID_MYLEX, + .device = PCI_DEVICE_ID_MYLEX_DAC960_LP, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (unsigned long) &DAC960_LP_privdata, + }, + {0, }, +}; + +MODULE_DEVICE_TABLE(pci, myrs_id_table); + +static struct pci_driver myrs_pci_driver = { + .name = "myrs", + .id_table = myrs_id_table, + .probe = myrs_probe, + .remove = myrs_remove, +}; + +static int __init myrs_init_module(void) +{ + int ret; + + myrs_raid_template = raid_class_attach(&myrs_raid_functions); + if (!myrs_raid_template) + return -ENODEV; + + ret = pci_register_driver(&myrs_pci_driver); + if (ret) + raid_class_release(myrs_raid_template); + + return ret; +} + +static void __exit myrs_cleanup_module(void) +{ + pci_unregister_driver(&myrs_pci_driver); + raid_class_release(myrs_raid_template); +} + +module_init(myrs_init_module); +module_exit(myrs_cleanup_module); + +MODULE_DESCRIPTION("Mylex DAC960/AcceleRAID/eXtremeRAID driver (SCSI Interface)"); +MODULE_AUTHOR("Hannes Reinecke "); +MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/myrs.h b/drivers/scsi/myrs.h new file mode 100644 index 000000000000..a2c0515bd8de --- /dev/null +++ b/drivers/scsi/myrs.h @@ -0,0 +1,1141 @@ +/* + * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers + * + * This driver supports the newer, SCSI-based firmware interface only. + * + * Copyright 2018 Hannes Reinecke, SUSE Linux GmbH + * + * Based on the original DAC960 driver, which has + * Copyright 1998-2001 by Leonard N. Zubkoff + * Portions Copyright 2002 by Mylex (An IBM Business Unit) + * + * This program is free software; you may redistribute and/or modify it under + * the terms of the GNU General Public License Version 2 as published by the + * Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for complete details. + */ + +#ifndef _MYRS_H +#define _MYRS_H + +#define MYRS_MAILBOX_TIMEOUT 1000000 + +#define MYRS_DCMD_TAG 1 +#define MYRS_MCMD_TAG 2 + +#define MYRS_LINE_BUFFER_SIZE 128 + +#define MYRS_PRIMARY_MONITOR_INTERVAL (10 * HZ) +#define MYRS_SECONDARY_MONITOR_INTERVAL (60 * HZ) + +/* Maximum number of Scatter/Gather Segments supported */ +#define MYRS_SG_LIMIT 128 + +/* + * Number of Command and Status Mailboxes used by the + * DAC960 V2 Firmware Memory Mailbox Interface. + */ +#define MYRS_MAX_CMD_MBOX 512 +#define MYRS_MAX_STAT_MBOX 512 + +#define MYRS_DCDB_SIZE 16 +#define MYRS_SENSE_SIZE 14 + +/* + * DAC960 V2 Firmware Command Opcodes. + */ +enum myrs_cmd_opcode { + DAC960_V2_MemCopy = 0x01, + DAC960_V2_SCSI_10_Passthru = 0x02, + DAC960_V2_SCSI_255_Passthru = 0x03, + DAC960_V2_SCSI_10 = 0x04, + DAC960_V2_SCSI_256 = 0x05, + DAC960_V2_IOCTL = 0x20 +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware IOCTL Opcodes. + */ +enum myrs_ioctl_opcode { + DAC960_V2_GetControllerInfo = 0x01, + DAC960_V2_GetLogicalDeviceInfoValid = 0x03, + DAC960_V2_GetPhysicalDeviceInfoValid = 0x05, + DAC960_V2_GetHealthStatus = 0x11, + DAC960_V2_GetEvent = 0x15, + DAC960_V2_StartDiscovery = 0x81, + DAC960_V2_SetDeviceState = 0x82, + DAC960_V2_InitPhysicalDeviceStart = 0x84, + DAC960_V2_InitPhysicalDeviceStop = 0x85, + DAC960_V2_InitLogicalDeviceStart = 0x86, + DAC960_V2_InitLogicalDeviceStop = 0x87, + DAC960_V2_RebuildDeviceStart = 0x88, + DAC960_V2_RebuildDeviceStop = 0x89, + DAC960_V2_MakeConsistencDataStart = 0x8A, + DAC960_V2_MakeConsistencDataStop = 0x8B, + DAC960_V2_ConsistencyCheckStart = 0x8C, + DAC960_V2_ConsistencyCheckStop = 0x8D, + DAC960_V2_SetMemoryMailbox = 0x8E, + DAC960_V2_ResetDevice = 0x90, + DAC960_V2_FlushDeviceData = 0x91, + DAC960_V2_PauseDevice = 0x92, + DAC960_V2_UnPauseDevice = 0x93, + DAC960_V2_LocateDevice = 0x94, + DAC960_V2_CreateNewConfiguration = 0xC0, + DAC960_V2_DeleteLogicalDevice = 0xC1, + DAC960_V2_ReplaceInternalDevice = 0xC2, + DAC960_V2_RenameLogicalDevice = 0xC3, + DAC960_V2_AddNewConfiguration = 0xC4, + DAC960_V2_TranslatePhysicalToLogicalDevice = 0xC5, + DAC960_V2_ClearConfiguration = 0xCA, +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware Command Status Codes. +*/ +#define DAC960_V2_NormalCompletion 0x00 +#define DAC960_V2_AbnormalCompletion 0x02 +#define DAC960_V2_DeviceBusy 0x08 +#define DAC960_V2_DeviceNonresponsive 0x0E +#define DAC960_V2_DeviceNonresponsive2 0x0F +#define DAC960_V2_DeviceRevervationConflict 0x18 + +/* + * DAC960 V2 Firmware Memory Type structure. + */ +struct myrs_mem_type { + enum { + DAC960_V2_MemoryType_Reserved = 0x00, + DAC960_V2_MemoryType_DRAM = 0x01, + DAC960_V2_MemoryType_EDRAM = 0x02, + DAC960_V2_MemoryType_EDO = 0x03, + DAC960_V2_MemoryType_SDRAM = 0x04, + DAC960_V2_MemoryType_Last = 0x1F + } __attribute__ ((packed)) mem_type:5; /* Byte 0 Bits 0-4 */ + bool rsvd:1; /* Byte 0 Bit 5 */ + bool mem_parity:1; /* Byte 0 Bit 6 */ + bool mem_ecc:1; /* Byte 0 Bit 7 */ +}; + +/* + * DAC960 V2 Firmware Processor Type structure. + */ +enum myrs_cpu_type { + DAC960_V2_ProcessorType_i960CA = 0x01, + DAC960_V2_ProcessorType_i960RD = 0x02, + DAC960_V2_ProcessorType_i960RN = 0x03, + DAC960_V2_ProcessorType_i960RP = 0x04, + DAC960_V2_ProcessorType_NorthBay = 0x05, + DAC960_V2_ProcessorType_StrongArm = 0x06, + DAC960_V2_ProcessorType_i960RM = 0x07 +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware Get Controller Info reply structure. + */ +struct myrs_ctlr_info { + unsigned char rsvd1; /* Byte 0 */ + enum { + DAC960_V2_SCSI_Bus = 0x00, + DAC960_V2_Fibre_Bus = 0x01, + DAC960_V2_PCI_Bus = 0x03 + } __attribute__ ((packed)) bus; /* Byte 1 */ + enum { + DAC960_V2_DAC960E = 0x01, + DAC960_V2_DAC960M = 0x08, + DAC960_V2_DAC960PD = 0x10, + DAC960_V2_DAC960PL = 0x11, + DAC960_V2_DAC960PU = 0x12, + DAC960_V2_DAC960PE = 0x13, + DAC960_V2_DAC960PG = 0x14, + DAC960_V2_DAC960PJ = 0x15, + DAC960_V2_DAC960PTL0 = 0x16, + DAC960_V2_DAC960PR = 0x17, + DAC960_V2_DAC960PRL = 0x18, + DAC960_V2_DAC960PT = 0x19, + DAC960_V2_DAC1164P = 0x1A, + DAC960_V2_DAC960PTL1 = 0x1B, + DAC960_V2_EXR2000P = 0x1C, + DAC960_V2_EXR3000P = 0x1D, + DAC960_V2_AcceleRAID352 = 0x1E, + DAC960_V2_AcceleRAID170 = 0x1F, + DAC960_V2_AcceleRAID160 = 0x20, + DAC960_V2_DAC960S = 0x60, + DAC960_V2_DAC960SU = 0x61, + DAC960_V2_DAC960SX = 0x62, + DAC960_V2_DAC960SF = 0x63, + DAC960_V2_DAC960SS = 0x64, + DAC960_V2_DAC960FL = 0x65, + DAC960_V2_DAC960LL = 0x66, + DAC960_V2_DAC960FF = 0x67, + DAC960_V2_DAC960HP = 0x68, + DAC960_V2_RAIDBRICK = 0x69, + DAC960_V2_METEOR_FL = 0x6A, + DAC960_V2_METEOR_FF = 0x6B + } __attribute__ ((packed)) ctlr_type; /* Byte 2 */ + unsigned char rsvd2; /* Byte 3 */ + unsigned short bus_speed_mhz; /* Bytes 4-5 */ + unsigned char bus_width; /* Byte 6 */ + unsigned char flash_code; /* Byte 7 */ + unsigned char ports_present; /* Byte 8 */ + unsigned char rsvd3[7]; /* Bytes 9-15 */ + unsigned char bus_name[16]; /* Bytes 16-31 */ + unsigned char ctlr_name[16]; /* Bytes 32-47 */ + unsigned char rsvd4[16]; /* Bytes 48-63 */ + /* Firmware Release Information */ + unsigned char fw_major_version; /* Byte 64 */ + unsigned char fw_minor_version; /* Byte 65 */ + unsigned char fw_turn_number; /* Byte 66 */ + unsigned char fw_build_number; /* Byte 67 */ + unsigned char fw_release_day; /* Byte 68 */ + unsigned char fw_release_month; /* Byte 69 */ + unsigned char fw_release_year_hi; /* Byte 70 */ + unsigned char fw_release_year_lo; /* Byte 71 */ + /* Hardware Release Information */ + unsigned char hw_rev; /* Byte 72 */ + unsigned char rsvd5[3]; /* Bytes 73-75 */ + unsigned char hw_release_day; /* Byte 76 */ + unsigned char hw_release_month; /* Byte 77 */ + unsigned char hw_release_year_hi; /* Byte 78 */ + unsigned char hw_release_year_lo; /* Byte 79 */ + /* Hardware Manufacturing Information */ + unsigned char manuf_batch_num; /* Byte 80 */ + unsigned char rsvd6; /* Byte 81 */ + unsigned char manuf_plant_num; /* Byte 82 */ + unsigned char rsvd7; /* Byte 83 */ + unsigned char hw_manuf_day; /* Byte 84 */ + unsigned char hw_manuf_month; /* Byte 85 */ + unsigned char hw_manuf_year_hi; /* Byte 86 */ + unsigned char hw_manuf_year_lo; /* Byte 87 */ + unsigned char max_pd_per_xld; /* Byte 88 */ + unsigned char max_ild_per_xld; /* Byte 89 */ + unsigned short nvram_size_kb; /* Bytes 90-91 */ + unsigned char max_xld; /* Byte 92 */ + unsigned char rsvd8[3]; /* Bytes 93-95 */ + /* Unique Information per Controller */ + unsigned char serial_number[16]; /* Bytes 96-111 */ + unsigned char rsvd9[16]; /* Bytes 112-127 */ + /* Vendor Information */ + unsigned char rsvd10[3]; /* Bytes 128-130 */ + unsigned char oem_code; /* Byte 131 */ + unsigned char vendor[16]; /* Bytes 132-147 */ + /* Other Physical/Controller/Operation Information */ + bool bbu_present:1; /* Byte 148 Bit 0 */ + bool cluster_mode:1; /* Byte 148 Bit 1 */ + unsigned char rsvd11:6; /* Byte 148 Bits 2-7 */ + unsigned char rsvd12[3]; /* Bytes 149-151 */ + /* Physical Device Scan Information */ + bool pscan_active:1; /* Byte 152 Bit 0 */ + unsigned char rsvd13:7; /* Byte 152 Bits 1-7 */ + unsigned char pscan_chan; /* Byte 153 */ + unsigned char pscan_target; /* Byte 154 */ + unsigned char pscan_lun; /* Byte 155 */ + /* Maximum Command Data Transfer Sizes */ + unsigned short max_transfer_size; /* Bytes 156-157 */ + unsigned short max_sge; /* Bytes 158-159 */ + /* Logical/Physical Device Counts */ + unsigned short ldev_present; /* Bytes 160-161 */ + unsigned short ldev_critical; /* Bytes 162-163 */ + unsigned short ldev_offline; /* Bytes 164-165 */ + unsigned short pdev_present; /* Bytes 166-167 */ + unsigned short pdisk_present; /* Bytes 168-169 */ + unsigned short pdisk_critical; /* Bytes 170-171 */ + unsigned short pdisk_offline; /* Bytes 172-173 */ + unsigned short max_tcq; /* Bytes 174-175 */ + /* Channel and Target ID Information */ + unsigned char physchan_present; /* Byte 176 */ + unsigned char virtchan_present; /* Byte 177 */ + unsigned char physchan_max; /* Byte 178 */ + unsigned char virtchan_max; /* Byte 179 */ + unsigned char max_targets[16]; /* Bytes 180-195 */ + unsigned char rsvd14[12]; /* Bytes 196-207 */ + /* Memory/Cache Information */ + unsigned short mem_size_mb; /* Bytes 208-209 */ + unsigned short cache_size_mb; /* Bytes 210-211 */ + unsigned int valid_cache_bytes; /* Bytes 212-215 */ + unsigned int dirty_cache_bytes; /* Bytes 216-219 */ + unsigned short mem_speed_mhz; /* Bytes 220-221 */ + unsigned char mem_data_width; /* Byte 222 */ + struct myrs_mem_type mem_type; /* Byte 223 */ + unsigned char cache_mem_type_name[16]; /* Bytes 224-239 */ + /* Execution Memory Information */ + unsigned short exec_mem_size_mb; /* Bytes 240-241 */ + unsigned short exec_l2_cache_size_mb; /* Bytes 242-243 */ + unsigned char rsvd15[8]; /* Bytes 244-251 */ + unsigned short exec_mem_speed_mhz; /* Bytes 252-253 */ + unsigned char exec_mem_data_width; /* Byte 254 */ + struct myrs_mem_type exec_mem_type; /* Byte 255 */ + unsigned char exec_mem_type_name[16]; /* Bytes 256-271 */ + /* CPU Type Information */ + struct { /* Bytes 272-335 */ + unsigned short cpu_speed_mhz; + enum myrs_cpu_type cpu_type; + unsigned char cpu_count; + unsigned char rsvd16[12]; + unsigned char cpu_name[16]; + } __attribute(( packed )) cpu[2]; + /* Debugging/Profiling/Command Time Tracing Information */ + unsigned short cur_prof_page_num; /* Bytes 336-337 */ + unsigned short num_prof_waiters; /* Bytes 338-339 */ + unsigned short cur_trace_page_num; /* Bytes 340-341 */ + unsigned short num_trace_waiters; /* Bytes 342-343 */ + unsigned char rsvd18[8]; /* Bytes 344-351 */ + /* Error Counters on Physical Devices */ + unsigned short pdev_bus_resets; /* Bytes 352-353 */ + unsigned short pdev_parity_errors; /* Bytes 355-355 */ + unsigned short pdev_soft_errors; /* Bytes 356-357 */ + unsigned short pdev_cmds_failed; /* Bytes 358-359 */ + unsigned short pdev_misc_errors; /* Bytes 360-361 */ + unsigned short pdev_cmd_timeouts; /* Bytes 362-363 */ + unsigned short pdev_sel_timeouts; /* Bytes 364-365 */ + unsigned short pdev_retries_done; /* Bytes 366-367 */ + unsigned short pdev_aborts_done; /* Bytes 368-369 */ + unsigned short pdev_host_aborts_done; /* Bytes 370-371 */ + unsigned short pdev_predicted_failures; /* Bytes 372-373 */ + unsigned short pdev_host_cmds_failed; /* Bytes 374-375 */ + unsigned short pdev_hard_errors; /* Bytes 376-377 */ + unsigned char rsvd19[6]; /* Bytes 378-383 */ + /* Error Counters on Logical Devices */ + unsigned short ldev_soft_errors; /* Bytes 384-385 */ + unsigned short ldev_cmds_failed; /* Bytes 386-387 */ + unsigned short ldev_host_aborts_done; /* Bytes 388-389 */ + unsigned char rsvd20[2]; /* Bytes 390-391 */ + /* Error Counters on Controller */ + unsigned short ctlr_mem_errors; /* Bytes 392-393 */ + unsigned short ctlr_host_aborts_done; /* Bytes 394-395 */ + unsigned char rsvd21[4]; /* Bytes 396-399 */ + /* Long Duration Activity Information */ + unsigned short bg_init_active; /* Bytes 400-401 */ + unsigned short ldev_init_active; /* Bytes 402-403 */ + unsigned short pdev_init_active; /* Bytes 404-405 */ + unsigned short cc_active; /* Bytes 406-407 */ + unsigned short rbld_active; /* Bytes 408-409 */ + unsigned short exp_active; /* Bytes 410-411 */ + unsigned short patrol_active; /* Bytes 412-413 */ + unsigned char rsvd22[2]; /* Bytes 414-415 */ + /* Flash ROM Information */ + unsigned char flash_type; /* Byte 416 */ + unsigned char rsvd23; /* Byte 417 */ + unsigned short flash_size_MB; /* Bytes 418-419 */ + unsigned int flash_limit; /* Bytes 420-423 */ + unsigned int flash_count; /* Bytes 424-427 */ + unsigned char rsvd24[4]; /* Bytes 428-431 */ + unsigned char flash_type_name[16]; /* Bytes 432-447 */ + /* Firmware Run Time Information */ + unsigned char rbld_rate; /* Byte 448 */ + unsigned char bg_init_rate; /* Byte 449 */ + unsigned char fg_init_rate; /* Byte 450 */ + unsigned char cc_rate; /* Byte 451 */ + unsigned char rsvd25[4]; /* Bytes 452-455 */ + unsigned int max_dp; /* Bytes 456-459 */ + unsigned int free_dp; /* Bytes 460-463 */ + unsigned int max_iop; /* Bytes 464-467 */ + unsigned int free_iop; /* Bytes 468-471 */ + unsigned short max_combined_len; /* Bytes 472-473 */ + unsigned short num_cfg_groups; /* Bytes 474-475 */ + bool installation_abort_status:1; /* Byte 476 Bit 0 */ + bool maint_mode_status:1; /* Byte 476 Bit 1 */ + unsigned char rsvd26[7]; /* Bytes 476-511 */ + unsigned char rsvd27[512]; /* Bytes 512-1023 */ +}; + +/* + * DAC960 V2 Firmware Device State type. + */ +enum myrs_devstate { + DAC960_V2_Device_Unconfigured = 0x00, + DAC960_V2_Device_Online = 0x01, + DAC960_V2_Device_Rebuild = 0x03, + DAC960_V2_Device_Missing = 0x04, + DAC960_V2_Device_SuspectedCritical = 0x05, + DAC960_V2_Device_Offline = 0x08, + DAC960_V2_Device_Critical = 0x09, + DAC960_V2_Device_SuspectedDead = 0x0C, + DAC960_V2_Device_CommandedOffline = 0x10, + DAC960_V2_Device_Standby = 0x21, + DAC960_V2_Device_InvalidState = 0xFF +} __attribute__ ((packed)); + +/* + * DAC960 V2 RAID Levels + */ +enum myrs_raid_level { + DAC960_V2_RAID_Level0 = 0x0, /* RAID 0 */ + DAC960_V2_RAID_Level1 = 0x1, /* RAID 1 */ + DAC960_V2_RAID_Level3 = 0x3, /* RAID 3 right asymmetric parity */ + DAC960_V2_RAID_Level5 = 0x5, /* RAID 5 right asymmetric parity */ + DAC960_V2_RAID_Level6 = 0x6, /* RAID 6 (Mylex RAID 6) */ + DAC960_V2_RAID_JBOD = 0x7, /* RAID 7 (JBOD) */ + DAC960_V2_RAID_NewSpan = 0x8, /* New Mylex SPAN */ + DAC960_V2_RAID_Level3F = 0x9, /* RAID 3 fixed parity */ + DAC960_V2_RAID_Level3L = 0xb, /* RAID 3 left symmetric parity */ + DAC960_V2_RAID_Span = 0xc, /* current spanning implementation */ + DAC960_V2_RAID_Level5L = 0xd, /* RAID 5 left symmetric parity */ + DAC960_V2_RAID_LevelE = 0xe, /* RAID E (concatenation) */ + DAC960_V2_RAID_Physical = 0xf, /* physical device */ +} __attribute__ ((packed)); + +enum myrs_stripe_size { + DAC960_V2_StripeSize_0 = 0x0, /* no stripe (RAID 1, RAID 7, etc) */ + DAC960_V2_StripeSize_512b = 0x1, + DAC960_V2_StripeSize_1k = 0x2, + DAC960_V2_StripeSize_2k = 0x3, + DAC960_V2_StripeSize_4k = 0x4, + DAC960_V2_StripeSize_8k = 0x5, + DAC960_V2_StripeSize_16k = 0x6, + DAC960_V2_StripeSize_32k = 0x7, + DAC960_V2_StripeSize_64k = 0x8, + DAC960_V2_StripeSize_128k = 0x9, + DAC960_V2_StripeSize_256k = 0xa, + DAC960_V2_StripeSize_512k = 0xb, + DAC960_V2_StripeSize_1m = 0xc, +} __attribute__ ((packed)); + +enum myrs_cacheline_size { + DAC960_V2_Cacheline_ZERO = 0x0, /* caching cannot be enabled */ + DAC960_V2_Cacheline_512b = 0x1, + DAC960_V2_Cacheline_1k = 0x2, + DAC960_V2_Cacheline_2k = 0x3, + DAC960_V2_Cacheline_4k = 0x4, + DAC960_V2_Cacheline_8k = 0x5, + DAC960_V2_Cacheline_16k = 0x6, + DAC960_V2_Cacheline_32k = 0x7, + DAC960_V2_Cacheline_64k = 0x8, +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware Get Logical Device Info reply structure. + */ +struct myrs_ldev_info { + unsigned char ctlr; /* Byte 0 */ + unsigned char channel; /* Byte 1 */ + unsigned char target; /* Byte 2 */ + unsigned char lun; /* Byte 3 */ + enum myrs_devstate dev_state; /* Byte 4 */ + unsigned char raid_level; /* Byte 5 */ + enum myrs_stripe_size stripe_size; /* Byte 6 */ + enum myrs_cacheline_size cacheline_size; /* Byte 7 */ + struct { + enum { + DAC960_V2_ReadCacheDisabled = 0x0, + DAC960_V2_ReadCacheEnabled = 0x1, + DAC960_V2_ReadAheadEnabled = 0x2, + DAC960_V2_IntelligentReadAheadEnabled = 0x3, + DAC960_V2_ReadCache_Last = 0x7 + } __attribute__ ((packed)) rce:3; /* Byte 8 Bits 0-2 */ + enum { + DAC960_V2_WriteCacheDisabled = 0x0, + DAC960_V2_LogicalDeviceReadOnly = 0x1, + DAC960_V2_WriteCacheEnabled = 0x2, + DAC960_V2_IntelligentWriteCacheEnabled = 0x3, + DAC960_V2_WriteCache_Last = 0x7 + } __attribute__ ((packed)) wce:3; /* Byte 8 Bits 3-5 */ + bool rsvd1:1; /* Byte 8 Bit 6 */ + bool ldev_init_done:1; /* Byte 8 Bit 7 */ + } ldev_control; /* Byte 8 */ + /* Logical Device Operations Status */ + bool cc_active:1; /* Byte 9 Bit 0 */ + bool rbld_active:1; /* Byte 9 Bit 1 */ + bool bg_init_active:1; /* Byte 9 Bit 2 */ + bool fg_init_active:1; /* Byte 9 Bit 3 */ + bool migration_active:1; /* Byte 9 Bit 4 */ + bool patrol_active:1; /* Byte 9 Bit 5 */ + unsigned char rsvd2:2; /* Byte 9 Bits 6-7 */ + unsigned char raid5_writeupdate; /* Byte 10 */ + unsigned char raid5_algo; /* Byte 11 */ + unsigned short ldev_num; /* Bytes 12-13 */ + /* BIOS Info */ + bool bios_disabled:1; /* Byte 14 Bit 0 */ + bool cdrom_boot:1; /* Byte 14 Bit 1 */ + bool drv_coercion:1; /* Byte 14 Bit 2 */ + bool write_same_disabled:1; /* Byte 14 Bit 3 */ + bool hba_mode:1; /* Byte 14 Bit 4 */ + enum { + DAC960_V2_Geometry_128_32 = 0x0, + DAC960_V2_Geometry_255_63 = 0x1, + DAC960_V2_Geometry_Reserved1 = 0x2, + DAC960_V2_Geometry_Reserved2 = 0x3 + } __attribute__ ((packed)) drv_geom:2; /* Byte 14 Bits 5-6 */ + bool super_ra_enabled:1; /* Byte 14 Bit 7 */ + unsigned char rsvd3:8; /* Byte 15 */ + /* Error Counters */ + unsigned short soft_errs; /* Bytes 16-17 */ + unsigned short cmds_failed; /* Bytes 18-19 */ + unsigned short cmds_aborted; /* Bytes 20-21 */ + unsigned short deferred_write_errs; /* Bytes 22-23 */ + unsigned int rsvd4:32; /* Bytes 24-27 */ + unsigned int rsvd5:32; /* Bytes 28-31 */ + /* Device Size Information */ + unsigned short rsvd6:16; /* Bytes 32-33 */ + unsigned short devsize_bytes; /* Bytes 34-35 */ + unsigned int orig_devsize; /* Bytes 36-39 */ + unsigned int cfg_devsize; /* Bytes 40-43 */ + unsigned int rsvd7:32; /* Bytes 44-47 */ + unsigned char ldev_name[32]; /* Bytes 48-79 */ + unsigned char inquiry[36]; /* Bytes 80-115 */ + unsigned char rsvd8[12]; /* Bytes 116-127 */ + u64 last_read_lba; /* Bytes 128-135 */ + u64 last_write_lba; /* Bytes 136-143 */ + u64 cc_lba; /* Bytes 144-151 */ + u64 rbld_lba; /* Bytes 152-159 */ + u64 bg_init_lba; /* Bytes 160-167 */ + u64 fg_init_lba; /* Bytes 168-175 */ + u64 migration_lba; /* Bytes 176-183 */ + u64 patrol_lba; /* Bytes 184-191 */ + unsigned char rsvd9[64]; /* Bytes 192-255 */ +}; + +/* + * DAC960 V2 Firmware Get Physical Device Info reply structure. + */ +struct myrs_pdev_info { + unsigned char rsvd1:8; /* Byte 0 */ + unsigned char channel; /* Byte 1 */ + unsigned char target; /* Byte 2 */ + unsigned char lun; /* Byte 3 */ + /* Configuration Status Bits */ + bool pdev_fault_tolerant:1; /* Byte 4 Bit 0 */ + bool pdev_connected:1; /* Byte 4 Bit 1 */ + bool pdev_local_to_ctlr:1; /* Byte 4 Bit 2 */ + unsigned char rsvd2:5; /* Byte 4 Bits 3-7 */ + /* Multiple Host/Controller Status Bits */ + bool remote_host_dead:1; /* Byte 5 Bit 0 */ + bool remove_ctlr_dead:1; /* Byte 5 Bit 1 */ + unsigned char rsvd3:6; /* Byte 5 Bits 2-7 */ + enum myrs_devstate dev_state; /* Byte 6 */ + unsigned char nego_data_width; /* Byte 7 */ + unsigned short nego_sync_rate; /* Bytes 8-9 */ + /* Multiported Physical Device Information */ + unsigned char num_ports; /* Byte 10 */ + unsigned char drv_access_bitmap; /* Byte 11 */ + unsigned int rsvd4:32; /* Bytes 12-15 */ + unsigned char ip_address[16]; /* Bytes 16-31 */ + unsigned short MaximumTags; /* Bytes 32-33 */ + /* Physical Device Operations Status */ + bool cc_in_progress:1; /* Byte 34 Bit 0 */ + bool rbld_in_progress:1; /* Byte 34 Bit 1 */ + bool makecc_in_progress:1; /* Byte 34 Bit 2 */ + bool pdevinit_in_progress:1; /* Byte 34 Bit 3 */ + bool migration_in_progress:1; /* Byte 34 Bit 4 */ + bool patrol_in_progress:1; /* Byte 34 Bit 5 */ + unsigned char rsvd5:2; /* Byte 34 Bits 6-7 */ + unsigned char long_op_status; /* Byte 35 */ + unsigned char parity_errs; /* Byte 36 */ + unsigned char soft_errs; /* Byte 37 */ + unsigned char hard_errs; /* Byte 38 */ + unsigned char misc_errs; /* Byte 39 */ + unsigned char cmd_timeouts; /* Byte 40 */ + unsigned char retries; /* Byte 41 */ + unsigned char aborts; /* Byte 42 */ + unsigned char pred_failures; /* Byte 43 */ + unsigned int rsvd6:32; /* Bytes 44-47 */ + unsigned short rsvd7:16; /* Bytes 48-49 */ + unsigned short devsize_bytes; /* Bytes 50-51 */ + unsigned int orig_devsize; /* Bytes 52-55 */ + unsigned int cfg_devsize; /* Bytes 56-59 */ + unsigned int rsvd8:32; /* Bytes 60-63 */ + unsigned char pdev_name[16]; /* Bytes 64-79 */ + unsigned char rsvd9[16]; /* Bytes 80-95 */ + unsigned char rsvd10[32]; /* Bytes 96-127 */ + unsigned char inquiry[36]; /* Bytes 128-163 */ + unsigned char rsvd11[20]; /* Bytes 164-183 */ + unsigned char rsvd12[8]; /* Bytes 184-191 */ + u64 last_read_lba; /* Bytes 192-199 */ + u64 last_write_lba; /* Bytes 200-207 */ + u64 cc_lba; /* Bytes 208-215 */ + u64 rbld_lba; /* Bytes 216-223 */ + u64 makecc_lba; /* Bytes 224-231 */ + u64 devinit_lba; /* Bytes 232-239 */ + u64 migration_lba; /* Bytes 240-247 */ + u64 patrol_lba; /* Bytes 248-255 */ + unsigned char rsvd13[256]; /* Bytes 256-511 */ +}; + +/* + * DAC960 V2 Firmware Health Status Buffer structure. + */ +struct myrs_fwstat { + unsigned int uptime_usecs; /* Bytes 0-3 */ + unsigned int uptime_msecs; /* Bytes 4-7 */ + unsigned int seconds; /* Bytes 8-11 */ + unsigned char rsvd1[4]; /* Bytes 12-15 */ + unsigned int epoch; /* Bytes 16-19 */ + unsigned char rsvd2[4]; /* Bytes 20-23 */ + unsigned int dbg_msgbuf_idx; /* Bytes 24-27 */ + unsigned int coded_msgbuf_idx; /* Bytes 28-31 */ + unsigned int cur_timetrace_page; /* Bytes 32-35 */ + unsigned int cur_prof_page; /* Bytes 36-39 */ + unsigned int next_evseq; /* Bytes 40-43 */ + unsigned char rsvd3[4]; /* Bytes 44-47 */ + unsigned char rsvd4[16]; /* Bytes 48-63 */ + unsigned char rsvd5[64]; /* Bytes 64-127 */ +}; + +/* + * DAC960 V2 Firmware Get Event reply structure. + */ +struct myrs_event { + unsigned int ev_seq; /* Bytes 0-3 */ + unsigned int ev_time; /* Bytes 4-7 */ + unsigned int ev_code; /* Bytes 8-11 */ + unsigned char rsvd1:8; /* Byte 12 */ + unsigned char channel; /* Byte 13 */ + unsigned char target; /* Byte 14 */ + unsigned char lun; /* Byte 15 */ + unsigned int rsvd2:32; /* Bytes 16-19 */ + unsigned int ev_parm; /* Bytes 20-23 */ + unsigned char sense_data[40]; /* Bytes 24-63 */ +}; + +/* + * DAC960 V2 Firmware Command Control Bits structure. + */ +struct myrs_cmd_ctrl { + bool fua:1; /* Byte 0 Bit 0 */ + bool disable_pgout:1; /* Byte 0 Bit 1 */ + bool rsvd1:1; /* Byte 0 Bit 2 */ + bool add_sge_mem:1; /* Byte 0 Bit 3 */ + bool dma_ctrl_to_host:1; /* Byte 0 Bit 4 */ + bool rsvd2:1; /* Byte 0 Bit 5 */ + bool no_autosense:1; /* Byte 0 Bit 6 */ + bool disc_prohibited:1; /* Byte 0 Bit 7 */ +}; + +/* + * DAC960 V2 Firmware Command Timeout structure. + */ +struct myrs_cmd_tmo { + unsigned char tmo_val:6; /* Byte 0 Bits 0-5 */ + enum { + DAC960_V2_TimeoutScale_Seconds = 0, + DAC960_V2_TimeoutScale_Minutes = 1, + DAC960_V2_TimeoutScale_Hours = 2, + DAC960_V2_TimeoutScale_Reserved = 3 + } __attribute__ ((packed)) tmo_scale:2; /* Byte 0 Bits 6-7 */ +}; + +/* + * DAC960 V2 Firmware Physical Device structure. + */ +struct myrs_pdev { + unsigned char lun; /* Byte 0 */ + unsigned char target; /* Byte 1 */ + unsigned char channel:3; /* Byte 2 Bits 0-2 */ + unsigned char ctlr:5; /* Byte 2 Bits 3-7 */ +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware Logical Device structure. + */ +struct myrs_ldev { + unsigned short ldev_num; /* Bytes 0-1 */ + unsigned char rsvd:3; /* Byte 2 Bits 0-2 */ + unsigned char ctlr:5; /* Byte 2 Bits 3-7 */ +} __attribute__ ((packed)); + +/* + * DAC960 V2 Firmware Operation Device type. + */ +enum myrs_opdev { + DAC960_V2_Physical_Device = 0x00, + DAC960_V2_RAID_Device = 0x01, + DAC960_V2_Physical_Channel = 0x02, + DAC960_V2_RAID_Channel = 0x03, + DAC960_V2_Physical_Controller = 0x04, + DAC960_V2_RAID_Controller = 0x05, + DAC960_V2_Configuration_Group = 0x10, + DAC960_V2_Enclosure = 0x11 +} __attribute__ ((packed)) ; + +/* + * DAC960 V2 Firmware Translate Physical To Logical Device structure. + */ +struct myrs_devmap { + unsigned short ldev_num; /* Bytes 0-1 */ + unsigned short rsvd:16; /* Bytes 2-3 */ + unsigned char prev_boot_ctlr; /* Byte 4 */ + unsigned char prev_boot_channel; /* Byte 5 */ + unsigned char prev_boot_target; /* Byte 6 */ + unsigned char prev_boot_lun; /* Byte 7 */ +}; + +/* + * DAC960 V2 Firmware Scatter/Gather List Entry structure. + */ +struct myrs_sge { + u64 sge_addr; /* Bytes 0-7 */ + u64 sge_count; /* Bytes 8-15 */ +}; + +/* + * DAC960 V2 Firmware Data Transfer Memory Address structure. + */ +union myrs_sgl { + struct myrs_sge sge[2]; /* Bytes 0-31 */ + struct { + unsigned short sge0_len; /* Bytes 0-1 */ + unsigned short sge1_len; /* Bytes 2-3 */ + unsigned short sge2_len; /* Bytes 4-5 */ + unsigned short rsvd:16; /* Bytes 6-7 */ + u64 sge0_addr; /* Bytes 8-15 */ + u64 sge1_addr; /* Bytes 16-23 */ + u64 sge2_addr; /* Bytes 24-31 */ + } ext; +}; + +/* + * 64 Byte DAC960 V2 Firmware Command Mailbox structure. + */ +union myrs_cmd_mbox { + unsigned int Words[16]; /* Words 0-15 */ + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + unsigned int rsvd1:24; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned char rsvd2[10]; /* Bytes 22-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } Common; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size; /* Bytes 4-7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_pdev pdev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + unsigned char cdb_len; /* Byte 21 */ + unsigned char cdb[10]; /* Bytes 22-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } SCSI_10; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size; /* Bytes 4-7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_pdev pdev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + unsigned char cdb_len; /* Byte 21 */ + unsigned short rsvd:16; /* Bytes 22-23 */ + u64 cdb_addr; /* Bytes 24-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } SCSI_255; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + unsigned short rsvd1:16; /* Bytes 16-17 */ + unsigned char ctlr_num; /* Byte 18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned char rsvd2[10]; /* Bytes 22-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } ControllerInfo; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_ldev ldev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned char rsvd[10]; /* Bytes 22-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } LogicalDeviceInfo; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_pdev pdev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned char rsvd[10]; /* Bytes 22-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } PhysicalDeviceInfo; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + unsigned short evnum_upper; /* Bytes 16-17 */ + unsigned char ctlr_num; /* Byte 18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned short evnum_lower; /* Bytes 22-23 */ + unsigned char rsvd[8]; /* Bytes 24-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } GetEvent; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + union { + struct myrs_ldev ldev; /* Bytes 16-18 */ + struct myrs_pdev pdev; /* Bytes 16-18 */ + }; + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + enum myrs_devstate state; /* Byte 22 */ + unsigned char rsvd[9]; /* Bytes 23-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } SetDeviceState; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_ldev ldev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + bool RestoreConsistency:1; /* Byte 22 Bit 0 */ + bool InitializedAreaOnly:1; /* Byte 22 Bit 1 */ + unsigned char rsvd1:6; /* Byte 22 Bits 2-7 */ + unsigned char rsvd2[9]; /* Bytes 23-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } ConsistencyCheck; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + unsigned char first_cmd_mbox_size_kb; /* Byte 4 */ + unsigned char first_stat_mbox_size_kb; /* Byte 5 */ + unsigned char second_cmd_mbox_size_kb; /* Byte 6 */ + unsigned char second_stat_mbox_size_kb; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + unsigned int rsvd1:24; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + unsigned char fwstat_buf_size_kb; /* Byte 22 */ + unsigned char rsvd2:8; /* Byte 23 */ + u64 fwstat_buf_addr; /* Bytes 24-31 */ + u64 first_cmd_mbox_addr; /* Bytes 32-39 */ + u64 first_stat_mbox_addr; /* Bytes 40-47 */ + u64 second_cmd_mbox_addr; /* Bytes 48-55 */ + u64 second_stat_mbox_addr; /* Bytes 56-63 */ + } SetMemoryMailbox; + struct { + unsigned short id; /* Bytes 0-1 */ + enum myrs_cmd_opcode opcode; /* Byte 2 */ + struct myrs_cmd_ctrl control; /* Byte 3 */ + u32 dma_size:24; /* Bytes 4-6 */ + unsigned char dma_num; /* Byte 7 */ + u64 sense_addr; /* Bytes 8-15 */ + struct myrs_pdev pdev; /* Bytes 16-18 */ + struct myrs_cmd_tmo tmo; /* Byte 19 */ + unsigned char sense_len; /* Byte 20 */ + enum myrs_ioctl_opcode ioctl_opcode; /* Byte 21 */ + enum myrs_opdev opdev; /* Byte 22 */ + unsigned char rsvd[9]; /* Bytes 23-31 */ + union myrs_sgl dma_addr; /* Bytes 32-63 */ + } DeviceOperation; +}; + +/* + * DAC960 V2 Firmware Controller Status Mailbox structure. + */ +struct myrs_stat_mbox { + unsigned short id; /* Bytes 0-1 */ + unsigned char status; /* Byte 2 */ + unsigned char sense_len; /* Byte 3 */ + int residual; /* Bytes 4-7 */ +}; + +struct myrs_cmdblk { + union myrs_cmd_mbox mbox; + unsigned char status; + unsigned char sense_len; + int residual; + struct completion *complete; + struct myrs_sge *sgl; + dma_addr_t sgl_addr; + unsigned char *DCDB; + dma_addr_t DCDB_dma; + unsigned char *sense; + dma_addr_t sense_addr; +}; + +/* + * DAC960 Driver Controller structure. + */ +struct myrs_hba { + void __iomem *io_base; + void __iomem *mmio_base; + phys_addr_t io_addr; + phys_addr_t pci_addr; + unsigned int irq; + + unsigned char model_name[28]; + unsigned char fw_version[12]; + + struct Scsi_Host *host; + struct pci_dev *pdev; + + unsigned int epoch; + unsigned int next_evseq; + /* Monitor flags */ + bool needs_update; + bool disable_enc_msg; + + struct workqueue_struct *work_q; + char work_q_name[20]; + struct delayed_work monitor_work; + unsigned long primary_monitor_time; + unsigned long secondary_monitor_time; + + spinlock_t queue_lock; + + struct dma_pool *sg_pool; + struct dma_pool *sense_pool; + struct dma_pool *dcdb_pool; + + void (*write_cmd_mbox)(union myrs_cmd_mbox *, union myrs_cmd_mbox *); + void (*get_cmd_mbox)(void __iomem *); + void (*disable_intr)(void __iomem *); + void (*reset)(void __iomem *); + + dma_addr_t cmd_mbox_addr; + size_t cmd_mbox_size; + union myrs_cmd_mbox *first_cmd_mbox; + union myrs_cmd_mbox *last_cmd_mbox; + union myrs_cmd_mbox *next_cmd_mbox; + union myrs_cmd_mbox *prev_cmd_mbox1; + union myrs_cmd_mbox *prev_cmd_mbox2; + + dma_addr_t stat_mbox_addr; + size_t stat_mbox_size; + struct myrs_stat_mbox *first_stat_mbox; + struct myrs_stat_mbox *last_stat_mbox; + struct myrs_stat_mbox *next_stat_mbox; + + struct myrs_cmdblk dcmd_blk; + struct myrs_cmdblk mcmd_blk; + struct mutex dcmd_mutex; + + struct myrs_fwstat *fwstat_buf; + dma_addr_t fwstat_addr; + + struct myrs_ctlr_info *ctlr_info; + struct mutex cinfo_mutex; + + struct myrs_event *event_buf; +}; + +typedef unsigned char (*enable_mbox_t)(void __iomem *base, dma_addr_t addr); +typedef int (*myrs_hwinit_t)(struct pci_dev *pdev, + struct myrs_hba *c, void __iomem *base); + +struct myrs_privdata { + myrs_hwinit_t hw_init; + irq_handler_t irq_handler; + unsigned int io_mem_size; +}; + +/* + * DAC960 GEM Series Controller Interface Register Offsets. + */ + +#define DAC960_GEM_RegisterWindowSize 0x600 + +enum DAC960_GEM_RegisterOffsets { + DAC960_GEM_InboundDoorBellRegisterReadSetOffset = 0x214, + DAC960_GEM_InboundDoorBellRegisterClearOffset = 0x218, + DAC960_GEM_OutboundDoorBellRegisterReadSetOffset = 0x224, + DAC960_GEM_OutboundDoorBellRegisterClearOffset = 0x228, + DAC960_GEM_InterruptStatusRegisterOffset = 0x208, + DAC960_GEM_InterruptMaskRegisterReadSetOffset = 0x22C, + DAC960_GEM_InterruptMaskRegisterClearOffset = 0x230, + DAC960_GEM_CommandMailboxBusAddressOffset = 0x510, + DAC960_GEM_CommandStatusOffset = 0x518, + DAC960_GEM_ErrorStatusRegisterReadSetOffset = 0x224, + DAC960_GEM_ErrorStatusRegisterClearOffset = 0x228, +}; + +/* + * DAC960 GEM Series Inbound Door Bell Register. + */ +#define DAC960_GEM_IDB_HWMBOX_NEW_CMD 0x01 +#define DAC960_GEM_IDB_HWMBOX_ACK_STS 0x02 +#define DAC960_GEM_IDB_GEN_IRQ 0x04 +#define DAC960_GEM_IDB_CTRL_RESET 0x08 +#define DAC960_GEM_IDB_MMBOX_NEW_CMD 0x10 + +#define DAC960_GEM_IDB_HWMBOX_FULL 0x01 +#define DAC960_GEM_IDB_INIT_IN_PROGRESS 0x02 + +/* + * DAC960 GEM Series Outbound Door Bell Register. + */ +#define DAC960_GEM_ODB_HWMBOX_ACK_IRQ 0x01 +#define DAC960_GEM_ODB_MMBOX_ACK_IRQ 0x02 +#define DAC960_GEM_ODB_HWMBOX_STS_AVAIL 0x01 +#define DAC960_GEM_ODB_MMBOX_STS_AVAIL 0x02 + +/* + * DAC960 GEM Series Interrupt Mask Register. + */ +#define DAC960_GEM_IRQMASK_HWMBOX_IRQ 0x01 +#define DAC960_GEM_IRQMASK_MMBOX_IRQ 0x02 + +/* + * DAC960 GEM Series Error Status Register. + */ +#define DAC960_GEM_ERRSTS_PENDING 0x20 + +/* + * dma_addr_writeql is provided to write dma_addr_t types + * to a 64-bit pci address space register. The controller + * will accept having the register written as two 32-bit + * values. + * + * In HIGHMEM kernels, dma_addr_t is a 64-bit value. + * without HIGHMEM, dma_addr_t is a 32-bit value. + * + * The compiler should always fix up the assignment + * to u.wq appropriately, depending upon the size of + * dma_addr_t. + */ +static inline +void dma_addr_writeql(dma_addr_t addr, void __iomem *write_address) +{ + union { + u64 wq; + uint wl[2]; + } u; + + u.wq = addr; + + writel(u.wl[0], write_address); + writel(u.wl[1], write_address + 4); +} + +/* + * DAC960 BA Series Controller Interface Register Offsets. + */ + +#define DAC960_BA_RegisterWindowSize 0x80 + +enum DAC960_BA_RegisterOffsets +{ + DAC960_BA_InterruptStatusRegisterOffset = 0x30, + DAC960_BA_InterruptMaskRegisterOffset = 0x34, + DAC960_BA_CommandMailboxBusAddressOffset = 0x50, + DAC960_BA_CommandStatusOffset = 0x58, + DAC960_BA_InboundDoorBellRegisterOffset = 0x60, + DAC960_BA_OutboundDoorBellRegisterOffset = 0x61, + DAC960_BA_ErrorStatusRegisterOffset = 0x63 +}; + +/* + * DAC960 BA Series Inbound Door Bell Register. + */ +#define DAC960_BA_IDB_HWMBOX_NEW_CMD 0x01 +#define DAC960_BA_IDB_HWMBOX_ACK_STS 0x02 +#define DAC960_BA_IDB_GEN_IRQ 0x04 +#define DAC960_BA_IDB_CTRL_RESET 0x08 +#define DAC960_BA_IDB_MMBOX_NEW_CMD 0x10 + +#define DAC960_BA_IDB_HWMBOX_EMPTY 0x01 +#define DAC960_BA_IDB_INIT_DONE 0x02 + +/* + * DAC960 BA Series Outbound Door Bell Register. + */ +#define DAC960_BA_ODB_HWMBOX_ACK_IRQ 0x01 +#define DAC960_BA_ODB_MMBOX_ACK_IRQ 0x02 + +#define DAC960_BA_ODB_HWMBOX_STS_AVAIL 0x01 +#define DAC960_BA_ODB_MMBOX_STS_AVAIL 0x02 + +/* + * DAC960 BA Series Interrupt Mask Register. + */ +#define DAC960_BA_IRQMASK_DISABLE_IRQ 0x04 +#define DAC960_BA_IRQMASK_DISABLEW_I2O 0x08 + +/* + * DAC960 BA Series Error Status Register. + */ +#define DAC960_BA_ERRSTS_PENDING 0x04 + +/* + * DAC960 LP Series Controller Interface Register Offsets. + */ + +#define DAC960_LP_RegisterWindowSize 0x80 + +enum DAC960_LP_RegisterOffsets { + DAC960_LP_CommandMailboxBusAddressOffset = 0x10, + DAC960_LP_CommandStatusOffset = 0x18, + DAC960_LP_InboundDoorBellRegisterOffset = 0x20, + DAC960_LP_OutboundDoorBellRegisterOffset = 0x2C, + DAC960_LP_ErrorStatusRegisterOffset = 0x2E, + DAC960_LP_InterruptStatusRegisterOffset = 0x30, + DAC960_LP_InterruptMaskRegisterOffset = 0x34, +}; + +/* + * DAC960 LP Series Inbound Door Bell Register. + */ +#define DAC960_LP_IDB_HWMBOX_NEW_CMD 0x01 +#define DAC960_LP_IDB_HWMBOX_ACK_STS 0x02 +#define DAC960_LP_IDB_GEN_IRQ 0x04 +#define DAC960_LP_IDB_CTRL_RESET 0x08 +#define DAC960_LP_IDB_MMBOX_NEW_CMD 0x10 + +#define DAC960_LP_IDB_HWMBOX_FULL 0x01 +#define DAC960_LP_IDB_INIT_IN_PROGRESS 0x02 + +/* + * DAC960 LP Series Outbound Door Bell Register. + */ +#define DAC960_LP_ODB_HWMBOX_ACK_IRQ 0x01 +#define DAC960_LP_ODB_MMBOX_ACK_IRQ 0x02 + +#define DAC960_LP_ODB_HWMBOX_STS_AVAIL 0x01 +#define DAC960_LP_ODB_MMBOX_STS_AVAIL 0x02 + +/* + * DAC960 LP Series Interrupt Mask Register. + */ +#define DAC960_LP_IRQMASK_DISABLE_IRQ 0x04 + +/* + * DAC960 LP Series Error Status Register. + */ +#define DAC960_LP_ERRSTS_PENDING 0x04 + +#endif /* _MYRS_H */