This patch contains code related to Scsi Host Layer for MPT (Message Passing Technology) based controllers This patch is part 1 of mpt3sas_scsih.c Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxx> Reviewed-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@xxxxxxx> --- diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c new file mode 100644 index 0000000..26781ea --- /dev/null +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -0,0 +1,2770 @@ +/* + * Scsi Host Layer for MPT (Message Passing Technology) based controllers + * + * This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c + * Copyright (C) 2012 LSI Corporation + * (mailto:DL-MPTFusionLinux@xxxxxxx) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * 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 more details. + * + * NO WARRANTY + * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR + * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT + * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is + * solely responsible for determining the appropriateness of using and + * distributing the Program and assumes all risks associated with its + * exercise of rights under this Agreement, including but not limited to + * the risks and costs of program errors, damage to or loss of data, + * programs or equipment, and unavailability or interruption of operations. + + * DISCLAIMER OF LIABILITY + * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED + * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + * USA. + */ + +#include <linux/version.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/blkdev.h> +#include <linux/sched.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/aer.h> +#include <linux/raid_class.h> + +#include "mpt3sas_base.h" + +MODULE_AUTHOR(MPT3SAS_AUTHOR); +MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION); +MODULE_LICENSE("GPL"); +MODULE_VERSION(MPT3SAS_DRIVER_VERSION); + +#define RAID_CHANNEL 1 +/* forward proto's */ +static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc, + struct _sas_node *sas_expander); +static void _firmware_event_work(struct work_struct *work); + +static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc, + struct _sas_device *sas_device); +static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, + u8 retry_count, u8 is_pd); + +static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid); + +static void _scsih_scan_start(struct Scsi_Host *shost); +static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time); + +/* global parameters */ +LIST_HEAD(mpt3sas_ioc_list); + +/* local parameters */ +static u8 scsi_io_cb_idx = -1; +static u8 tm_cb_idx = -1; +static u8 ctl_cb_idx = -1; +static u8 base_cb_idx = -1; +static u8 port_enable_cb_idx = -1; +static u8 transport_cb_idx = -1; +static u8 scsih_cb_idx = -1; +static u8 config_cb_idx = -1; +static int mpt_ids; + +static u8 tm_tr_cb_idx = -1 ; +static u8 tm_tr_volume_cb_idx = -1 ; +static u8 tm_sas_control_cb_idx = -1; + +/* command line options */ +static u32 logging_level; +MODULE_PARM_DESC(logging_level, + " bits for enabling additional logging info (default=0)"); + + +static ushort max_sectors = 0xFFFF; +module_param(max_sectors, ushort, 0); +MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767"); + + +static int missing_delay[2] = {-1, -1}; +module_param_array(missing_delay, int, NULL, 0); +MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay"); + +/* scsi-mid layer global parmeter is max_report_luns, which is 511 */ +#define MPT3SAS_MAX_LUN (16895) +static int max_lun = MPT3SAS_MAX_LUN; +module_param(max_lun, int, 0); +MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); + + + + +/* diag_buffer_enable is bitwise + * bit 0 set = TRACE + * bit 1 set = SNAPSHOT + * bit 2 set = EXTENDED + * + * Either bit can be set, or both + */ +static int diag_buffer_enable = -1; +module_param(diag_buffer_enable, int, 0); +MODULE_PARM_DESC(diag_buffer_enable, + " post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)"); +static int disable_discovery = -1; +module_param(disable_discovery, int, 0); +MODULE_PARM_DESC(disable_discovery, " disable discovery "); + + +/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */ +static int prot_mask = -1; +module_param(prot_mask, int, 0); +MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 "); + + +/* raid transport support */ + +static struct raid_template *mpt3sas_raid_template; + + +/** + * struct sense_info - common structure for obtaining sense keys + * @skey: sense key + * @asc: additional sense code + * @ascq: additional sense code qualifier + */ +struct sense_info { + u8 skey; + u8 asc; + u8 ascq; +}; + +#define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB) +#define MPT3SAS_TURN_ON_FAULT_LED (0xFFFC) +#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD) +#define MPT3SAS_ABRT_TASK_SET (0xFFFE) +#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF) +/** + * struct fw_event_work - firmware event struct + * @list: link list framework + * @work: work object (ioc->fault_reset_work_q) + * @cancel_pending_work: flag set during reset handling + * @ioc: per adapter object + * @device_handle: device handle + * @VF_ID: virtual function id + * @VP_ID: virtual port id + * @ignore: flag meaning this event has been marked to ignore + * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h + * @event_data: reply event data payload follows + * + * This object stored on ioc->fw_event_list. + */ +struct fw_event_work { + struct list_head list; + struct work_struct work; + u8 cancel_pending_work; + struct delayed_work delayed_work; + + struct MPT3SAS_ADAPTER *ioc; + u16 device_handle; + u8 VF_ID; + u8 VP_ID; + u8 ignore; + u16 event; + void *event_data; +}; + +/* raid transport support */ +static struct raid_template *mpt3sas_raid_template; + +/** + * struct _scsi_io_transfer - scsi io transfer + * @handle: sas device handle (assigned by firmware) + * @is_raid: flag set for hidden raid components + * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE, + * @data_length: data transfer length + * @data_dma: dma pointer to data + * @sense: sense data + * @lun: lun number + * @cdb_length: cdb length + * @cdb: cdb contents + * @timeout: timeout for this command + * @VF_ID: virtual function id + * @VP_ID: virtual port id + * @valid_reply: flag set for reply message + * @sense_length: sense length + * @ioc_status: ioc status + * @scsi_state: scsi state + * @scsi_status: scsi staus + * @log_info: log information + * @transfer_length: data length transfer when there is a reply message + * + * Used for sending internal scsi commands to devices within this module. + * Refer to _scsi_send_scsi_io(). + */ +struct _scsi_io_transfer { + u16 handle; + u8 is_raid; + enum dma_data_direction dir; + u32 data_length; + dma_addr_t data_dma; + u8 sense[SCSI_SENSE_BUFFERSIZE]; + u32 lun; + u8 cdb_length; + u8 cdb[32]; + u8 timeout; + u8 VF_ID; + u8 VP_ID; + u8 valid_reply; + /* the following bits are only valid when 'valid_reply = 1' */ + u32 sense_length; + u16 ioc_status; + u8 scsi_state; + u8 scsi_status; + u32 log_info; + u32 transfer_length; +}; + +/* + * The pci device ids are defined in mpi/mpi2_cnfg.h. + */ +static DEFINE_PCI_DEVICE_TABLE(scsih_pci_table) = { + /* Fury ~ 3004 and 3008 */ + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008, + PCI_ANY_ID, PCI_ANY_ID }, + /* Invader ~ 3108 */ + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6, + PCI_ANY_ID, PCI_ANY_ID }, + {0} /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(pci, scsih_pci_table); + +/** + * _scsih_set_debug_level - global setting of ioc->logging_level. + * + * Note: The logging levels are defined in mpt3sas_debug.h. + */ +static int +_scsih_set_debug_level(const char *val, struct kernel_param *kp) +{ + int ret = param_set_int(val, kp); + struct MPT3SAS_ADAPTER *ioc; + + if (ret) + return ret; + + pr_info("setting logging_level(0x%08x)\n", logging_level); + list_for_each_entry(ioc, &mpt3sas_ioc_list, list) + ioc->logging_level = logging_level; + return 0; +} +module_param_call(logging_level, _scsih_set_debug_level, param_get_int, + &logging_level, 0644); + +/** + * _scsih_srch_boot_sas_address - search based on sas_address + * @sas_address: sas address + * @boot_device: boot device object from bios page 2 + * + * Returns 1 when there's a match, 0 means no match. + */ +static inline int +_scsih_srch_boot_sas_address(u64 sas_address, + Mpi2BootDeviceSasWwid_t *boot_device) +{ + return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0; +} + +/** + * _scsih_srch_boot_device_name - search based on device name + * @device_name: device name specified in INDENTIFY fram + * @boot_device: boot device object from bios page 2 + * + * Returns 1 when there's a match, 0 means no match. + */ +static inline int +_scsih_srch_boot_device_name(u64 device_name, + Mpi2BootDeviceDeviceName_t *boot_device) +{ + return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0; +} + +/** + * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot + * @enclosure_logical_id: enclosure logical id + * @slot_number: slot number + * @boot_device: boot device object from bios page 2 + * + * Returns 1 when there's a match, 0 means no match. + */ +static inline int +_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number, + Mpi2BootDeviceEnclosureSlot_t *boot_device) +{ + return (enclosure_logical_id == le64_to_cpu(boot_device-> + EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device-> + SlotNumber)) ? 1 : 0; +} + +/** + * _scsih_is_boot_device - search for matching boot device. + * @sas_address: sas address + * @device_name: device name specified in INDENTIFY fram + * @enclosure_logical_id: enclosure logical id + * @slot_number: slot number + * @form: specifies boot device form + * @boot_device: boot device object from bios page 2 + * + * Returns 1 when there's a match, 0 means no match. + */ +static int +_scsih_is_boot_device(u64 sas_address, u64 device_name, + u64 enclosure_logical_id, u16 slot, u8 form, + Mpi2BiosPage2BootDevice_t *boot_device) +{ + int rc = 0; + + switch (form) { + case MPI2_BIOSPAGE2_FORM_SAS_WWID: + if (!sas_address) + break; + rc = _scsih_srch_boot_sas_address( + sas_address, &boot_device->SasWwid); + break; + case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT: + if (!enclosure_logical_id) + break; + rc = _scsih_srch_boot_encl_slot( + enclosure_logical_id, + slot, &boot_device->EnclosureSlot); + break; + case MPI2_BIOSPAGE2_FORM_DEVICE_NAME: + if (!device_name) + break; + rc = _scsih_srch_boot_device_name( + device_name, &boot_device->DeviceName); + break; + case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED: + break; + } + + return rc; +} + +/** + * _scsih_get_sas_address - set the sas_address for given device handle + * @handle: device handle + * @sas_address: sas address + * + * Returns 0 success, non-zero when failure + */ +static int +_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle, + u64 *sas_address) +{ + Mpi2SasDevicePage0_t sas_device_pg0; + Mpi2ConfigReply_t mpi_reply; + u32 ioc_status; + + *sas_address = 0; + + if (handle <= ioc->sas_hba.num_phys) { + *sas_address = ioc->sas_hba.sas_address; + return 0; + } + + if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, + MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { + pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__); + return -ENXIO; + } + + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { + *sas_address = le64_to_cpu(sas_device_pg0.SASAddress); + return 0; + } + + /* we hit this becuase the given parent handle doesn't exist */ + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + return -ENXIO; + + /* else error case */ + pr_err(MPT3SAS_FMT + "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n", + ioc->name, handle, ioc_status, + __FILE__, __LINE__, __func__); + return -EIO; +} + +/** + * _scsih_determine_boot_device - determine boot device. + * @ioc: per adapter object + * @device: either sas_device or raid_device object + * @is_raid: [flag] 1 = raid object, 0 = sas object + * + * Determines whether this device should be first reported device to + * to scsi-ml or sas transport, this purpose is for persistent boot device. + * There are primary, alternate, and current entries in bios page 2. The order + * priority is primary, alternate, then current. This routine saves + * the corresponding device object and is_raid flag in the ioc object. + * The saved data to be used later in _scsih_probe_boot_devices(). + */ +static void +_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc, + void *device, u8 is_raid) +{ + struct _sas_device *sas_device; + struct _raid_device *raid_device; + u64 sas_address; + u64 device_name; + u64 enclosure_logical_id; + u16 slot; + + /* only process this function when driver loads */ + if (!ioc->is_driver_loading) + return; + + /* no Bios, return immediately */ + if (!ioc->bios_pg3.BiosVersion) + return; + + if (!is_raid) { + sas_device = device; + sas_address = sas_device->sas_address; + device_name = sas_device->device_name; + enclosure_logical_id = sas_device->enclosure_logical_id; + slot = sas_device->slot; + } else { + raid_device = device; + sas_address = raid_device->wwid; + device_name = 0; + enclosure_logical_id = 0; + slot = 0; + } + + if (!ioc->req_boot_device.device) { + if (_scsih_is_boot_device(sas_address, device_name, + enclosure_logical_id, slot, + (ioc->bios_pg2.ReqBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK), + &ioc->bios_pg2.RequestedBootDevice)) { + dinitprintk(ioc, pr_info(MPT3SAS_FMT + "%s: req_boot_device(0x%016llx)\n", + ioc->name, __func__, + (unsigned long long)sas_address)); + ioc->req_boot_device.device = device; + ioc->req_boot_device.is_raid = is_raid; + } + } + + if (!ioc->req_alt_boot_device.device) { + if (_scsih_is_boot_device(sas_address, device_name, + enclosure_logical_id, slot, + (ioc->bios_pg2.ReqAltBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK), + &ioc->bios_pg2.RequestedAltBootDevice)) { + dinitprintk(ioc, pr_info(MPT3SAS_FMT + "%s: req_alt_boot_device(0x%016llx)\n", + ioc->name, __func__, + (unsigned long long)sas_address)); + ioc->req_alt_boot_device.device = device; + ioc->req_alt_boot_device.is_raid = is_raid; + } + } + + if (!ioc->current_boot_device.device) { + if (_scsih_is_boot_device(sas_address, device_name, + enclosure_logical_id, slot, + (ioc->bios_pg2.CurrentBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK), + &ioc->bios_pg2.CurrentBootDevice)) { + dinitprintk(ioc, pr_info(MPT3SAS_FMT + "%s: current_boot_device(0x%016llx)\n", + ioc->name, __func__, + (unsigned long long)sas_address)); + ioc->current_boot_device.device = device; + ioc->current_boot_device.is_raid = is_raid; + } + } +} + +/** + * mpt3sas_scsih_sas_device_find_by_sas_address - sas device search + * @ioc: per adapter object + * @sas_address: sas address + * Context: Calling function should acquire ioc->sas_device_lock + * + * This searches for sas_device based on sas_address, then return sas_device + * object. + */ +struct _sas_device * +mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, + u64 sas_address) +{ + struct _sas_device *sas_device; + + list_for_each_entry(sas_device, &ioc->sas_device_list, list) + if (sas_device->sas_address == sas_address) + return sas_device; + + list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) + if (sas_device->sas_address == sas_address) + return sas_device; + + return NULL; +} + +/** + * _scsih_sas_device_find_by_handle - sas device search + * @ioc: per adapter object + * @handle: sas device handle (assigned by firmware) + * Context: Calling function should acquire ioc->sas_device_lock + * + * This searches for sas_device based on sas_address, then return sas_device + * object. + */ +static struct _sas_device * +_scsih_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct _sas_device *sas_device; + + list_for_each_entry(sas_device, &ioc->sas_device_list, list) + if (sas_device->handle == handle) + return sas_device; + + list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) + if (sas_device->handle == handle) + return sas_device; + + return NULL; +} + +/** + * _scsih_sas_device_remove - remove sas_device from list. + * @ioc: per adapter object + * @sas_device: the sas_device object + * Context: This function will acquire ioc->sas_device_lock. + * + * Removing object and freeing associated memory from the ioc->sas_device_list. + */ +static void +_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc, + struct _sas_device *sas_device) +{ + unsigned long flags; + + if (!sas_device) + return; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + list_del(&sas_device->list); + kfree(sas_device); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); +} + +/** + * _scsih_device_remove_by_handle - removing device object by handle + * @ioc: per adapter object + * @handle: device handle + * + * Return nothing. + */ +static void +_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct _sas_device *sas_device; + unsigned long flags; + + if (ioc->shost_recovery) + return; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (sas_device) + list_del(&sas_device->list); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + if (sas_device) + _scsih_remove_device(ioc, sas_device); +} + +/** + * mpt3sas_device_remove_by_sas_address - removing device object by sas address + * @ioc: per adapter object + * @sas_address: device sas_address + * + * Return nothing. + */ +void +mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc, + u64 sas_address) +{ + struct _sas_device *sas_device; + unsigned long flags; + + if (ioc->shost_recovery) + return; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + sas_address); + if (sas_device) + list_del(&sas_device->list); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + if (sas_device) + _scsih_remove_device(ioc, sas_device); +} + +/** + * _scsih_sas_device_add - insert sas_device to the list. + * @ioc: per adapter object + * @sas_device: the sas_device object + * Context: This function will acquire ioc->sas_device_lock. + * + * Adding new object to the ioc->sas_device_list. + */ +static void +_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc, + struct _sas_device *sas_device) +{ + unsigned long flags; + + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: handle(0x%04x), sas_addr(0x%016llx)\n", + ioc->name, __func__, sas_device->handle, + (unsigned long long)sas_device->sas_address)); + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + list_add_tail(&sas_device->list, &ioc->sas_device_list); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + if (!mpt3sas_transport_port_add(ioc, sas_device->handle, + sas_device->sas_address_parent)) { + _scsih_sas_device_remove(ioc, sas_device); + } else if (!sas_device->starget) { + /* + * When asyn scanning is enabled, its not possible to remove + * devices while scanning is turned on due to an oops in + * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start() + */ + if (!ioc->is_driver_loading) + mpt3sas_transport_port_remove(ioc, + sas_device->sas_address, + sas_device->sas_address_parent); + _scsih_sas_device_remove(ioc, sas_device); + } +} + +/** + * _scsih_sas_device_init_add - insert sas_device to the list. + * @ioc: per adapter object + * @sas_device: the sas_device object + * Context: This function will acquire ioc->sas_device_lock. + * + * Adding new object at driver load time to the ioc->sas_device_init_list. + */ +static void +_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc, + struct _sas_device *sas_device) +{ + unsigned long flags; + + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, + __func__, sas_device->handle, + (unsigned long long)sas_device->sas_address)); + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + list_add_tail(&sas_device->list, &ioc->sas_device_init_list); + _scsih_determine_boot_device(ioc, sas_device, 0); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); +} + +/** + * _scsih_raid_device_find_by_id - raid device search + * @ioc: per adapter object + * @id: sas device target id + * @channel: sas device channel + * Context: Calling function should acquire ioc->raid_device_lock + * + * This searches for raid_device based on target id, then return raid_device + * object. + */ +static struct _raid_device * +_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel) +{ + struct _raid_device *raid_device, *r; + + r = NULL; + list_for_each_entry(raid_device, &ioc->raid_device_list, list) { + if (raid_device->id == id && raid_device->channel == channel) { + r = raid_device; + goto out; + } + } + + out: + return r; +} + +/** + * _scsih_raid_device_find_by_handle - raid device search + * @ioc: per adapter object + * @handle: sas device handle (assigned by firmware) + * Context: Calling function should acquire ioc->raid_device_lock + * + * This searches for raid_device based on handle, then return raid_device + * object. + */ +static struct _raid_device * +_scsih_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct _raid_device *raid_device, *r; + + r = NULL; + list_for_each_entry(raid_device, &ioc->raid_device_list, list) { + if (raid_device->handle != handle) + continue; + r = raid_device; + goto out; + } + + out: + return r; +} + +/** + * _scsih_raid_device_find_by_wwid - raid device search + * @ioc: per adapter object + * @handle: sas device handle (assigned by firmware) + * Context: Calling function should acquire ioc->raid_device_lock + * + * This searches for raid_device based on wwid, then return raid_device + * object. + */ +static struct _raid_device * +_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid) +{ + struct _raid_device *raid_device, *r; + + r = NULL; + list_for_each_entry(raid_device, &ioc->raid_device_list, list) { + if (raid_device->wwid != wwid) + continue; + r = raid_device; + goto out; + } + + out: + return r; +} + +/** + * _scsih_raid_device_add - add raid_device object + * @ioc: per adapter object + * @raid_device: raid_device object + * + * This is added to the raid_device_list link list. + */ +static void +_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc, + struct _raid_device *raid_device) +{ + unsigned long flags; + + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__, + raid_device->handle, (unsigned long long)raid_device->wwid)); + + spin_lock_irqsave(&ioc->raid_device_lock, flags); + list_add_tail(&raid_device->list, &ioc->raid_device_list); + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); +} + +/** + * _scsih_raid_device_remove - delete raid_device object + * @ioc: per adapter object + * @raid_device: raid_device object + * + */ +static void +_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc, + struct _raid_device *raid_device) +{ + unsigned long flags; + + spin_lock_irqsave(&ioc->raid_device_lock, flags); + list_del(&raid_device->list); + kfree(raid_device); + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); +} + +/** + * mpt3sas_scsih_expander_find_by_handle - expander device search + * @ioc: per adapter object + * @handle: expander handle (assigned by firmware) + * Context: Calling function should acquire ioc->sas_device_lock + * + * This searches for expander device based on handle, then returns the + * sas_node object. + */ +struct _sas_node * +mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct _sas_node *sas_expander, *r; + + r = NULL; + list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { + if (sas_expander->handle != handle) + continue; + r = sas_expander; + goto out; + } + out: + return r; +} + +/** + * mpt3sas_scsih_expander_find_by_sas_address - expander device search + * @ioc: per adapter object + * @sas_address: sas address + * Context: Calling function should acquire ioc->sas_node_lock. + * + * This searches for expander device based on sas_address, then returns the + * sas_node object. + */ +struct _sas_node * +mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc, + u64 sas_address) +{ + struct _sas_node *sas_expander, *r; + + r = NULL; + list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { + if (sas_expander->sas_address != sas_address) + continue; + r = sas_expander; + goto out; + } + out: + return r; +} + +/** + * _scsih_expander_node_add - insert expander device to the list. + * @ioc: per adapter object + * @sas_expander: the sas_device object + * Context: This function will acquire ioc->sas_node_lock. + * + * Adding new object to the ioc->sas_expander_list. + * + * Return nothing. + */ +static void +_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc, + struct _sas_node *sas_expander) +{ + unsigned long flags; + + spin_lock_irqsave(&ioc->sas_node_lock, flags); + list_add_tail(&sas_expander->list, &ioc->sas_expander_list); + spin_unlock_irqrestore(&ioc->sas_node_lock, flags); +} + +/** + * _scsih_is_end_device - determines if device is an end device + * @device_info: bitfield providing information about the device. + * Context: none + * + * Returns 1 if end device. + */ +static int +_scsih_is_end_device(u32 device_info) +{ + if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE && + ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) | + (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) | + (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE))) + return 1; + else + return 0; +} + +/** + * _scsih_scsi_lookup_get - returns scmd entry + * @ioc: per adapter object + * @smid: system request message index + * + * Returns the smid stored scmd pointer. + */ +static struct scsi_cmnd * +_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid) +{ + return ioc->scsi_lookup[smid - 1].scmd; +} + +/** + * _scsih_scsi_lookup_get_clear - returns scmd entry + * @ioc: per adapter object + * @smid: system request message index + * + * Returns the smid stored scmd pointer. + * Then will derefrence the stored scmd pointer. + */ +static inline struct scsi_cmnd * +_scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid) +{ + unsigned long flags; + struct scsi_cmnd *scmd; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + scmd = ioc->scsi_lookup[smid - 1].scmd; + ioc->scsi_lookup[smid - 1].scmd = NULL; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + + return scmd; +} + +/** + * _scsih_scsi_lookup_find_by_scmd - scmd lookup + * @ioc: per adapter object + * @smid: system request message index + * @scmd: pointer to scsi command object + * Context: This function will acquire ioc->scsi_lookup_lock. + * + * This will search for a scmd pointer in the scsi_lookup array, + * returning the revelent smid. A returned value of zero means invalid. + */ +static u16 +_scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd + *scmd) +{ + u16 smid; + unsigned long flags; + int i; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + smid = 0; + for (i = 0; i < ioc->scsiio_depth; i++) { + if (ioc->scsi_lookup[i].scmd == scmd) { + smid = ioc->scsi_lookup[i].smid; + goto out; + } + } + out: + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return smid; +} + +/** + * _scsih_scsi_lookup_find_by_target - search for matching channel:id + * @ioc: per adapter object + * @id: target id + * @channel: channel + * Context: This function will acquire ioc->scsi_lookup_lock. + * + * This will search for a matching channel:id in the scsi_lookup array, + * returning 1 if found. + */ +static u8 +_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id, + int channel) +{ + u8 found; + unsigned long flags; + int i; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + found = 0; + for (i = 0 ; i < ioc->scsiio_depth; i++) { + if (ioc->scsi_lookup[i].scmd && + (ioc->scsi_lookup[i].scmd->device->id == id && + ioc->scsi_lookup[i].scmd->device->channel == channel)) { + found = 1; + goto out; + } + } + out: + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return found; +} + +/** + * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun + * @ioc: per adapter object + * @id: target id + * @lun: lun number + * @channel: channel + * Context: This function will acquire ioc->scsi_lookup_lock. + * + * This will search for a matching channel:id:lun in the scsi_lookup array, + * returning 1 if found. + */ +static u8 +_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id, + unsigned int lun, int channel) +{ + u8 found; + unsigned long flags; + int i; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + found = 0; + for (i = 0 ; i < ioc->scsiio_depth; i++) { + if (ioc->scsi_lookup[i].scmd && + (ioc->scsi_lookup[i].scmd->device->id == id && + ioc->scsi_lookup[i].scmd->device->channel == channel && + ioc->scsi_lookup[i].scmd->device->lun == lun)) { + found = 1; + goto out; + } + } + out: + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return found; +} + + +static void +_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) +{ + struct Scsi_Host *shost = sdev->host; + int max_depth; + struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct MPT3SAS_TARGET *sas_target_priv_data; + struct _sas_device *sas_device; + unsigned long flags; + + max_depth = shost->can_queue; + + /* limit max device queue for SATA to 32 */ + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + goto not_sata; + sas_target_priv_data = sas_device_priv_data->sas_target; + if (!sas_target_priv_data) + goto not_sata; + if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) + goto not_sata; + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device_priv_data->sas_target->sas_address); + if (sas_device && sas_device->device_info & + MPI2_SAS_DEVICE_INFO_SATA_DEVICE) + max_depth = MPT3SAS_SATA_QUEUE_DEPTH; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + not_sata: + + if (!sdev->tagged_supported) + max_depth = 1; + if (qdepth > max_depth) + qdepth = max_depth; + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); +} + +/** + * _scsih_change_queue_depth - setting device queue depth + * @sdev: scsi device struct + * @qdepth: requested queue depth + * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP + * (see include/scsi/scsi_host.h for definition) + * + * Returns queue depth. + */ +static int +_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +{ + if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) + _scsih_adjust_queue_depth(sdev, qdepth); + else if (reason == SCSI_QDEPTH_QFULL) + scsi_track_queue_full(sdev, qdepth); + else + return -EOPNOTSUPP; + + if (sdev->inquiry_len > 7) + sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \ + "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n", + sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags, + sdev->ordered_tags, sdev->scsi_level, + (sdev->inquiry[7] & 2) >> 1); + + return sdev->queue_depth; +} + +/** + * _scsih_change_queue_type - changing device queue tag type + * @sdev: scsi device struct + * @tag_type: requested tag type + * + * Returns queue tag type. + */ +static int +_scsih_change_queue_type(struct scsi_device *sdev, int tag_type) +{ + if (sdev->tagged_supported) { + scsi_set_tag_type(sdev, tag_type); + if (tag_type) + scsi_activate_tcq(sdev, sdev->queue_depth); + else + scsi_deactivate_tcq(sdev, sdev->queue_depth); + } else + tag_type = 0; + + return tag_type; +} + + +/** + * _scsih_target_alloc - target add routine + * @starget: scsi target struct + * + * Returns 0 if ok. Any other return is assumed to be an error and + * the device is ignored. + */ +static int +_scsih_target_alloc(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct MPT3SAS_TARGET *sas_target_priv_data; + struct _sas_device *sas_device; + struct _raid_device *raid_device; + unsigned long flags; + struct sas_rphy *rphy; + + sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL); + if (!sas_target_priv_data) + return -ENOMEM; + + starget->hostdata = sas_target_priv_data; + sas_target_priv_data->starget = starget; + sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE; + + /* RAID volumes */ + if (starget->channel == RAID_CHANNEL) { + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_id(ioc, starget->id, + starget->channel); + if (raid_device) { + sas_target_priv_data->handle = raid_device->handle; + sas_target_priv_data->sas_address = raid_device->wwid; + sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME; + raid_device->starget = starget; + } + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + return 0; + } + + /* sas/sata devices */ + spin_lock_irqsave(&ioc->sas_device_lock, flags); + rphy = dev_to_rphy(starget->dev.parent); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + rphy->identify.sas_address); + + if (sas_device) { + sas_target_priv_data->handle = sas_device->handle; + sas_target_priv_data->sas_address = sas_device->sas_address; + sas_device->starget = starget; + sas_device->id = starget->id; + sas_device->channel = starget->channel; + if (test_bit(sas_device->handle, ioc->pd_handles)) + sas_target_priv_data->flags |= + MPT_TARGET_FLAGS_RAID_COMPONENT; + if (sas_device->fast_path) + sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO; + } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + return 0; +} + +/** + * _scsih_target_destroy - target destroy routine + * @starget: scsi target struct + * + * Returns nothing. + */ +static void +_scsih_target_destroy(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct MPT3SAS_TARGET *sas_target_priv_data; + struct _sas_device *sas_device; + struct _raid_device *raid_device; + unsigned long flags; + struct sas_rphy *rphy; + + sas_target_priv_data = starget->hostdata; + if (!sas_target_priv_data) + return; + + if (starget->channel == RAID_CHANNEL) { + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_id(ioc, starget->id, + starget->channel); + if (raid_device) { + raid_device->starget = NULL; + raid_device->sdev = NULL; + } + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + goto out; + } + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + rphy = dev_to_rphy(starget->dev.parent); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + rphy->identify.sas_address); + if (sas_device && (sas_device->starget == starget) && + (sas_device->id == starget->id) && + (sas_device->channel == starget->channel)) + sas_device->starget = NULL; + + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + out: + kfree(sas_target_priv_data); + starget->hostdata = NULL; +} + +/** + * _scsih_slave_alloc - device add routine + * @sdev: scsi device struct + * + * Returns 0 if ok. Any other return is assumed to be an error and + * the device is ignored. + */ +static int +_scsih_slave_alloc(struct scsi_device *sdev) +{ + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; + struct MPT3SAS_TARGET *sas_target_priv_data; + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_target *starget; + struct _raid_device *raid_device; + unsigned long flags; + + sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL); + if (!sas_device_priv_data) + return -ENOMEM; + + sas_device_priv_data->lun = sdev->lun; + sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT; + + starget = scsi_target(sdev); + sas_target_priv_data = starget->hostdata; + sas_target_priv_data->num_luns++; + sas_device_priv_data->sas_target = sas_target_priv_data; + sdev->hostdata = sas_device_priv_data; + if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT)) + sdev->no_uld_attach = 1; + + shost = dev_to_shost(&starget->dev); + ioc = shost_priv(shost); + if (starget->channel == RAID_CHANNEL) { + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_id(ioc, + starget->id, starget->channel); + if (raid_device) + raid_device->sdev = sdev; /* raid is single lun */ + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + } + + return 0; +} + +/** + * _scsih_slave_destroy - device destroy routine + * @sdev: scsi device struct + * + * Returns nothing. + */ +static void +_scsih_slave_destroy(struct scsi_device *sdev) +{ + struct MPT3SAS_TARGET *sas_target_priv_data; + struct scsi_target *starget; + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; + struct _sas_device *sas_device; + unsigned long flags; + + if (!sdev->hostdata) + return; + + starget = scsi_target(sdev); + sas_target_priv_data = starget->hostdata; + sas_target_priv_data->num_luns--; + + shost = dev_to_shost(&starget->dev); + ioc = shost_priv(shost); + + if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + sas_target_priv_data->sas_address); + if (sas_device && !sas_target_priv_data->num_luns) + sas_device->starget = NULL; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } + + kfree(sdev->hostdata); + sdev->hostdata = NULL; +} + +/** + * _scsih_display_sata_capabilities - sata capabilities + * @ioc: per adapter object + * @handle: device handle + * @sdev: scsi device struct + */ +static void +_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc, + u16 handle, struct scsi_device *sdev) +{ + Mpi2ConfigReply_t mpi_reply; + Mpi2SasDevicePage0_t sas_device_pg0; + u32 ioc_status; + u16 flags; + u32 device_info; + + if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, + MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { + pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { + pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + flags = le16_to_cpu(sas_device_pg0.Flags); + device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); + + sdev_printk(KERN_INFO, sdev, + "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), " + "sw_preserve(%s)\n", + (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n", + (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n", + (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" : + "n", + (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n", + (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n", + (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n"); +} + +/* + * raid transport support - + * Enabled for SLES11 and newer, in older kernels the driver will panic when + * unloading the driver followed by a load - I beleive that the subroutine + * raid_class_release() is not cleaning up properly. + */ + +/** + * _scsih_is_raid - return boolean indicating device is raid volume + * @dev the device struct object + */ +static int +_scsih_is_raid(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + + return (sdev->channel == RAID_CHANNEL) ? 1 : 0; +} + +/** + * _scsih_get_resync - get raid volume resync percent complete + * @dev the device struct object + */ +static void +_scsih_get_resync(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host); + static struct _raid_device *raid_device; + unsigned long flags; + Mpi2RaidVolPage0_t vol_pg0; + Mpi2ConfigReply_t mpi_reply; + u32 volume_status_flags; + u8 percent_complete; + u16 handle; + + percent_complete = 0; + handle = 0; + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id, + sdev->channel); + if (raid_device) { + handle = raid_device->handle; + percent_complete = raid_device->percent_complete; + } + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + + if (!handle) + goto out; + + if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0, + MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, + sizeof(Mpi2RaidVolPage0_t))) { + pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + percent_complete = 0; + goto out; + } + + volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags); + if (!(volume_status_flags & + MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)) + percent_complete = 0; + + out: + raid_set_resync(mpt3sas_raid_template, dev, percent_complete); +} + +/** + * _scsih_get_state - get raid volume level + * @dev the device struct object + */ +static void +_scsih_get_state(struct device *dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host); + static struct _raid_device *raid_device; + unsigned long flags; + Mpi2RaidVolPage0_t vol_pg0; + Mpi2ConfigReply_t mpi_reply; + u32 volstate; + enum raid_state state = RAID_STATE_UNKNOWN; + u16 handle = 0; + + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id, + sdev->channel); + if (raid_device) + handle = raid_device->handle; + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + + if (!raid_device) + goto out; + + if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0, + MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, + sizeof(Mpi2RaidVolPage0_t))) { + pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + goto out; + } + + volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags); + if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) { + state = RAID_STATE_RESYNCING; + goto out; + } + + switch (vol_pg0.VolumeState) { + case MPI2_RAID_VOL_STATE_OPTIMAL: + case MPI2_RAID_VOL_STATE_ONLINE: + state = RAID_STATE_ACTIVE; + break; + case MPI2_RAID_VOL_STATE_DEGRADED: + state = RAID_STATE_DEGRADED; + break; + case MPI2_RAID_VOL_STATE_FAILED: + case MPI2_RAID_VOL_STATE_MISSING: + state = RAID_STATE_OFFLINE; + break; + } + out: + raid_set_state(mpt3sas_raid_template, dev, state); +} + +/** + * _scsih_set_level - set raid level + * @sdev: scsi device struct + * @volume_type: volume type + */ +static void +_scsih_set_level(struct scsi_device *sdev, u8 volume_type) +{ + enum raid_level level = RAID_LEVEL_UNKNOWN; + + switch (volume_type) { + case MPI2_RAID_VOL_TYPE_RAID0: + level = RAID_LEVEL_0; + break; + case MPI2_RAID_VOL_TYPE_RAID10: + level = RAID_LEVEL_10; + break; + case MPI2_RAID_VOL_TYPE_RAID1E: + level = RAID_LEVEL_1E; + break; + case MPI2_RAID_VOL_TYPE_RAID1: + level = RAID_LEVEL_1; + break; + } + + raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level); +} + + +/** + * _scsih_get_volume_capabilities - volume capabilities + * @ioc: per adapter object + * @sas_device: the raid_device object + * + * Returns 0 for success, else 1 + */ +static int +_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc, + struct _raid_device *raid_device) +{ + Mpi2RaidVolPage0_t *vol_pg0; + Mpi2RaidPhysDiskPage0_t pd_pg0; + Mpi2SasDevicePage0_t sas_device_pg0; + Mpi2ConfigReply_t mpi_reply; + u16 sz; + u8 num_pds; + + if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle, + &num_pds)) || !num_pds) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; + } + + raid_device->num_pds = num_pds; + sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds * + sizeof(Mpi2RaidVol0PhysDisk_t)); + vol_pg0 = kzalloc(sz, GFP_KERNEL); + if (!vol_pg0) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; + } + + if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0, + MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + kfree(vol_pg0); + return 1; + } + + raid_device->volume_type = vol_pg0->VolumeType; + + /* figure out what the underlying devices are by + * obtaining the device_info bits for the 1st device + */ + if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply, + &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM, + vol_pg0->PhysDisk[0].PhysDiskNum))) { + if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, + &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, + le16_to_cpu(pd_pg0.DevHandle)))) { + raid_device->device_info = + le32_to_cpu(sas_device_pg0.DeviceInfo); + } + } + + kfree(vol_pg0); + return 0; +} + + + +/** + * _scsih_enable_tlr - setting TLR flags + * @ioc: per adapter object + * @sdev: scsi device struct + * + * Enabling Transaction Layer Retries for tape devices when + * vpd page 0x90 is present + * + */ +static void +_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev) +{ + + /* only for TAPE */ + if (sdev->type != TYPE_TAPE) + return; + + if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR)) + return; + + sas_enable_tlr(sdev); + sdev_printk(KERN_INFO, sdev, "TLR %s\n", + sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled"); + return; + +} + +/** + * _scsih_slave_configure - device configure routine. + * @sdev: scsi device struct + * + * Returns 0 if ok. Any other return is assumed to be an error and + * the device is ignored. + */ +static int +_scsih_slave_configure(struct scsi_device *sdev) +{ + struct Scsi_Host *shost = sdev->host; + struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct MPT3SAS_TARGET *sas_target_priv_data; + struct _sas_device *sas_device; + struct _raid_device *raid_device; + unsigned long flags; + int qdepth; + u8 ssp_target = 0; + char *ds = ""; + char *r_level = ""; + u16 handle, volume_handle = 0; + u64 volume_wwid = 0; + + qdepth = 1; + sas_device_priv_data = sdev->hostdata; + sas_device_priv_data->configured_lun = 1; + sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT; + sas_target_priv_data = sas_device_priv_data->sas_target; + handle = sas_target_priv_data->handle; + + /* raid volume handling */ + if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) { + + spin_lock_irqsave(&ioc->raid_device_lock, flags); + raid_device = _scsih_raid_device_find_by_handle(ioc, handle); + spin_unlock_irqrestore(&ioc->raid_device_lock, flags); + if (!raid_device) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, + __LINE__, __func__)); + return 1; + } + + if (_scsih_get_volume_capabilities(ioc, raid_device)) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, + __LINE__, __func__)); + return 1; + } + + + /* RAID Queue Depth Support + * IS volume = underlying qdepth of drive type, either + * MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH + * IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH) + */ + if (raid_device->device_info & + MPI2_SAS_DEVICE_INFO_SSP_TARGET) { + qdepth = MPT3SAS_SAS_QUEUE_DEPTH; + ds = "SSP"; + } else { + qdepth = MPT3SAS_SATA_QUEUE_DEPTH; + if (raid_device->device_info & + MPI2_SAS_DEVICE_INFO_SATA_DEVICE) + ds = "SATA"; + else + ds = "STP"; + } + + switch (raid_device->volume_type) { + case MPI2_RAID_VOL_TYPE_RAID0: + r_level = "RAID0"; + break; + case MPI2_RAID_VOL_TYPE_RAID1E: + qdepth = MPT3SAS_RAID_QUEUE_DEPTH; + if (ioc->manu_pg10.OEMIdentifier && + (le32_to_cpu(ioc->manu_pg10.GenericFlags0) & + MFG10_GF0_R10_DISPLAY) && + !(raid_device->num_pds % 2)) + r_level = "RAID10"; + else + r_level = "RAID1E"; + break; + case MPI2_RAID_VOL_TYPE_RAID1: + qdepth = MPT3SAS_RAID_QUEUE_DEPTH; + r_level = "RAID1"; + break; + case MPI2_RAID_VOL_TYPE_RAID10: + qdepth = MPT3SAS_RAID_QUEUE_DEPTH; + r_level = "RAID10"; + break; + case MPI2_RAID_VOL_TYPE_UNKNOWN: + default: + qdepth = MPT3SAS_RAID_QUEUE_DEPTH; + r_level = "RAIDX"; + break; + } + + sdev_printk(KERN_INFO, sdev, + "%s: handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n", + r_level, raid_device->handle, + (unsigned long long)raid_device->wwid, + raid_device->num_pds, ds); + + + _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + +/* raid transport support */ + _scsih_set_level(sdev, raid_device->volume_type); + return 0; + } + + /* non-raid handling */ + if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { + if (mpt3sas_config_get_volume_handle(ioc, handle, + &volume_handle)) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__)); + return 1; + } + if (volume_handle && mpt3sas_config_get_volume_wwid(ioc, + volume_handle, &volume_wwid)) { + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__)); + return 1; + } + } + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device_priv_data->sas_target->sas_address); + if (!sas_device) { + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + dfailprintk(ioc, pr_warn(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; + } + + sas_device->volume_handle = volume_handle; + sas_device->volume_wwid = volume_wwid; + if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) { + qdepth = MPT3SAS_SAS_QUEUE_DEPTH; + ssp_target = 1; + ds = "SSP"; + } else { + qdepth = MPT3SAS_SATA_QUEUE_DEPTH; + if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) + ds = "STP"; + else if (sas_device->device_info & + MPI2_SAS_DEVICE_INFO_SATA_DEVICE) + ds = "SATA"; + } + + sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \ + "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n", + ds, handle, (unsigned long long)sas_device->sas_address, + sas_device->phy, (unsigned long long)sas_device->device_name); + sdev_printk(KERN_INFO, sdev, + "%s: enclosure_logical_id(0x%016llx), slot(%d)\n", + ds, (unsigned long long) + sas_device->enclosure_logical_id, sas_device->slot); + + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + if (!ssp_target) + _scsih_display_sata_capabilities(ioc, handle, sdev); + + + _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + + if (ssp_target) { + sas_read_port_mode_page(sdev); + _scsih_enable_tlr(ioc, sdev); + } + + return 0; +} + +/** + * _scsih_bios_param - fetch head, sector, cylinder info for a disk + * @sdev: scsi device struct + * @bdev: pointer to block device context + * @capacity: device size (in 512 byte sectors) + * @params: three element array to place output: + * params[0] number of heads (max 255) + * params[1] number of sectors (max 63) + * params[2] number of cylinders + * + * Return nothing. + */ +static int +_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev, + sector_t capacity, int params[]) +{ + int heads; + int sectors; + sector_t cylinders; + ulong dummy; + + heads = 64; + sectors = 32; + + dummy = heads * sectors; + cylinders = capacity; + sector_div(cylinders, dummy); + + /* + * Handle extended translation size for logical drives + * > 1Gb + */ + if ((ulong)capacity >= 0x200000) { + heads = 255; + sectors = 63; + dummy = heads * sectors; + cylinders = capacity; + sector_div(cylinders, dummy); + } + + /* return result */ + params[0] = heads; + params[1] = sectors; + params[2] = cylinders; + + return 0; +} + +/** + * _scsih_response_code - translation of device response code + * @ioc: per adapter object + * @response_code: response code returned by the device + * + * Return nothing. + */ +static void +_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code) +{ + char *desc; + + switch (response_code) { + case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE: + desc = "task management request completed"; + break; + case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME: + desc = "invalid frame"; + break; + case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: + desc = "task management request not supported"; + break; + case MPI2_SCSITASKMGMT_RSP_TM_FAILED: + desc = "task management request failed"; + break; + case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED: + desc = "task management request succeeded"; + break; + case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN: + desc = "invalid lun"; + break; + case 0xA: + desc = "overlapped tag attempted"; + break; + case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: + desc = "task queued, however not sent to target"; + break; + default: + desc = "unknown"; + break; + } + pr_warn(MPT3SAS_FMT "response_code(0x%01x): %s\n", + ioc->name, response_code, desc); +} + +/** + * _scsih_tm_done - tm completion routine + * @ioc: per adapter object + * @smid: system request message index + * @msix_index: MSIX table index supplied by the OS + * @reply: reply message frame(lower 32bit addr) + * Context: none. + * + * The callback handler when using scsih_issue_tm. + * + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. + */ +static u8 +_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) +{ + MPI2DefaultReply_t *mpi_reply; + + if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED) + return 1; + if (ioc->tm_cmds.smid != smid) + return 1; + mpt3sas_base_flush_reply_queues(ioc); + ioc->tm_cmds.status |= MPT3_CMD_COMPLETE; + mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); + if (mpi_reply) { + memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); + ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID; + } + ioc->tm_cmds.status &= ~MPT3_CMD_PENDING; + complete(&ioc->tm_cmds.done); + return 1; +} + +/** + * mpt3sas_scsih_set_tm_flag - set per target tm_busy + * @ioc: per adapter object + * @handle: device handle + * + * During taskmangement request, we need to freeze the device queue. + */ +void +mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + u8 skip = 0; + + shost_for_each_device(sdev, ioc->shost) { + if (skip) + continue; + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (sas_device_priv_data->sas_target->handle == handle) { + sas_device_priv_data->sas_target->tm_busy = 1; + skip = 1; + ioc->ignore_loginfos = 1; + } + } +} + +/** + * mpt3sas_scsih_clear_tm_flag - clear per target tm_busy + * @ioc: per adapter object + * @handle: device handle + * + * During taskmangement request, we need to freeze the device queue. + */ +void +mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + u8 skip = 0; + + shost_for_each_device(sdev, ioc->shost) { + if (skip) + continue; + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (sas_device_priv_data->sas_target->handle == handle) { + sas_device_priv_data->sas_target->tm_busy = 0; + skip = 1; + ioc->ignore_loginfos = 0; + } + } +} + +/** + * mpt3sas_scsih_issue_tm - main routine for sending tm requests + * @ioc: per adapter struct + * @device_handle: device handle + * @channel: the channel assigned by the OS + * @id: the id assigned by the OS + * @lun: lun number + * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h) + * @smid_task: smid assigned to the task + * @timeout: timeout in seconds + * @serial_number: the serial_number from scmd + * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF + * Context: user + * + * A generic API for sending task management requests to firmware. + * + * The callback index is set inside `ioc->tm_cb_idx`. + * + * Return SUCCESS or FAILED. + */ +int +mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, + uint id, uint lun, u8 type, u16 smid_task, ulong timeout, + unsigned long serial_number, enum mutex_type m_type) +{ + Mpi2SCSITaskManagementRequest_t *mpi_request; + Mpi2SCSITaskManagementReply_t *mpi_reply; + u16 smid = 0; + u32 ioc_state; + unsigned long timeleft; + struct scsiio_tracker *scsi_lookup = NULL; + int rc; + + if (m_type == TM_MUTEX_ON) + mutex_lock(&ioc->tm_cmds.mutex); + if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) { + pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n", + __func__, ioc->name); + rc = FAILED; + goto err_out; + } + + if (ioc->shost_recovery || ioc->remove_host || + ioc->pci_error_recovery) { + pr_info(MPT3SAS_FMT "%s: host reset in progress!\n", + __func__, ioc->name); + rc = FAILED; + goto err_out; + } + + ioc_state = mpt3sas_base_get_iocstate(ioc, 0); + if (ioc_state & MPI2_DOORBELL_USED) { + dhsprintk(ioc, pr_info(MPT3SAS_FMT + "unexpected doorbell active!\n", ioc->name)); + rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, + FORCE_BIG_HAMMER); + rc = (!rc) ? SUCCESS : FAILED; + goto err_out; + } + + if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { + mpt3sas_base_fault_info(ioc, ioc_state & + MPI2_DOORBELL_DATA_MASK); + rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, + FORCE_BIG_HAMMER); + rc = (!rc) ? SUCCESS : FAILED; + goto err_out; + } + + smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx); + if (!smid) { + pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n", + ioc->name, __func__); + rc = FAILED; + goto err_out; + } + + if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) + scsi_lookup = &ioc->scsi_lookup[smid_task - 1]; + + dtmprintk(ioc, pr_info(MPT3SAS_FMT + "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n", + ioc->name, handle, type, smid_task)); + ioc->tm_cmds.status = MPT3_CMD_PENDING; + mpi_request = mpt3sas_base_get_msg_frame(ioc, smid); + ioc->tm_cmds.smid = smid; + memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t)); + memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t)); + mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; + mpi_request->DevHandle = cpu_to_le16(handle); + mpi_request->TaskType = type; + mpi_request->TaskMID = cpu_to_le16(smid_task); + int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN); + mpt3sas_scsih_set_tm_flag(ioc, handle); + init_completion(&ioc->tm_cmds.done); + mpt3sas_base_put_smid_hi_priority(ioc, smid); + timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ); + if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) { + pr_err(MPT3SAS_FMT "%s: timeout\n", + ioc->name, __func__); + _debug_dump_mf(mpi_request, + sizeof(Mpi2SCSITaskManagementRequest_t)/4); + if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) { + rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, + FORCE_BIG_HAMMER); + rc = (!rc) ? SUCCESS : FAILED; + ioc->tm_cmds.status = MPT3_CMD_NOT_USED; + mpt3sas_scsih_clear_tm_flag(ioc, handle); + goto err_out; + } + } + + if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) { + mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT); + mpi_reply = ioc->tm_cmds.reply; + dtmprintk(ioc, pr_info(MPT3SAS_FMT "complete tm: " \ + "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n", + ioc->name, le16_to_cpu(mpi_reply->IOCStatus), + le32_to_cpu(mpi_reply->IOCLogInfo), + le32_to_cpu(mpi_reply->TerminationCount))); + if (ioc->logging_level & MPT_DEBUG_TM) { + _scsih_response_code(ioc, mpi_reply->ResponseCode); + if (mpi_reply->IOCStatus) + _debug_dump_mf(mpi_request, + sizeof(Mpi2SCSITaskManagementRequest_t)/4); + } + } + + switch (type) { + case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK: + rc = SUCCESS; + if (scsi_lookup->scmd == NULL) + break; + rc = FAILED; + break; + + case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET: + if (_scsih_scsi_lookup_find_by_target(ioc, id, channel)) + rc = FAILED; + else + rc = SUCCESS; + break; + case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET: + case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: + if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel)) + rc = FAILED; + else + rc = SUCCESS; + break; + case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK: + rc = SUCCESS; + break; + default: + rc = FAILED; + break; + } + + mpt3sas_scsih_clear_tm_flag(ioc, handle); + ioc->tm_cmds.status = MPT3_CMD_NOT_USED; + if (m_type == TM_MUTEX_ON) + mutex_unlock(&ioc->tm_cmds.mutex); + + return rc; + + err_out: + if (m_type == TM_MUTEX_ON) + mutex_unlock(&ioc->tm_cmds.mutex); + return rc; +} + +/** + * _scsih_tm_display_info - displays info about the device + * @ioc: per adapter struct + * @scmd: pointer to scsi command object + * + * Called by task management callback handlers. + */ +static void +_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd) +{ + struct scsi_target *starget = scmd->device->sdev_target; + struct MPT3SAS_TARGET *priv_target = starget->hostdata; + struct _sas_device *sas_device = NULL; + unsigned long flags; + char *device_str = NULL; + + if (!priv_target) + return; + device_str = "volume"; + + scsi_print_command(scmd); + if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) { + starget_printk(KERN_INFO, starget, + "%s handle(0x%04x), %s wwid(0x%016llx)\n", + device_str, priv_target->handle, + device_str, (unsigned long long)priv_target->sas_address); + } else { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + priv_target->sas_address); + if (sas_device) { + if (priv_target->flags & + MPT_TARGET_FLAGS_RAID_COMPONENT) { + starget_printk(KERN_INFO, starget, + "volume handle(0x%04x), " + "volume wwid(0x%016llx)\n", + sas_device->volume_handle, + (unsigned long long)sas_device->volume_wwid); + } + starget_printk(KERN_INFO, starget, + "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n", + sas_device->handle, + (unsigned long long)sas_device->sas_address, + sas_device->phy); + starget_printk(KERN_INFO, starget, + "enclosure_logical_id(0x%016llx), slot(%d)\n", + (unsigned long long)sas_device->enclosure_logical_id, + sas_device->slot); + } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } +} + +/** + * _scsih_abort - eh threads main abort routine + * @scmd: pointer to scsi command object + * + * Returns SUCCESS if command aborted else FAILED + */ +static int +_scsih_abort(struct scsi_cmnd *scmd) +{ + struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); + struct MPT3SAS_DEVICE *sas_device_priv_data; + u16 smid; + u16 handle; + int r; + + sdev_printk(KERN_INFO, scmd->device, + "attempting task abort! scmd(%p)\n", scmd); + _scsih_tm_display_info(ioc, scmd); + + sas_device_priv_data = scmd->device->hostdata; + if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { + sdev_printk(KERN_INFO, scmd->device, + "device been deleted! scmd(%p)\n", scmd); + scmd->result = DID_NO_CONNECT << 16; + scmd->scsi_done(scmd); + r = SUCCESS; + goto out; + } + + /* search for the command */ + smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd); + if (!smid) { + scmd->result = DID_RESET << 16; + r = SUCCESS; + goto out; + } + + /* for hidden raid components and volumes this is not supported */ + if (sas_device_priv_data->sas_target->flags & + MPT_TARGET_FLAGS_RAID_COMPONENT || + sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) { + scmd->result = DID_RESET << 16; + r = FAILED; + goto out; + } + + mpt3sas_halt_firmware(ioc); + + handle = sas_device_priv_data->sas_target->handle; + r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, + scmd->device->id, scmd->device->lun, + MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, + scmd->serial_number, TM_MUTEX_ON); + + out: + sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n", + ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + return r; +} + +/** + * _scsih_dev_reset - eh threads main device reset routine + * @scmd: pointer to scsi command object + * + * Returns SUCCESS if command aborted else FAILED + */ +static int +_scsih_dev_reset(struct scsi_cmnd *scmd) +{ + struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct _sas_device *sas_device; + unsigned long flags; + u16 handle; + int r; + + sdev_printk(KERN_INFO, scmd->device, + "attempting device reset! scmd(%p)\n", scmd); + _scsih_tm_display_info(ioc, scmd); + + sas_device_priv_data = scmd->device->hostdata; + if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { + sdev_printk(KERN_INFO, scmd->device, + "device been deleted! scmd(%p)\n", scmd); + scmd->result = DID_NO_CONNECT << 16; + scmd->scsi_done(scmd); + r = SUCCESS; + goto out; + } + + /* for hidden raid components obtain the volume_handle */ + handle = 0; + if (sas_device_priv_data->sas_target->flags & + MPT_TARGET_FLAGS_RAID_COMPONENT) { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, + sas_device_priv_data->sas_target->handle); + if (sas_device) + handle = sas_device->volume_handle; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } else + handle = sas_device_priv_data->sas_target->handle; + + if (!handle) { + scmd->result = DID_RESET << 16; + r = FAILED; + goto out; + } + + r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, + scmd->device->id, scmd->device->lun, + MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0, + TM_MUTEX_ON); + + out: + sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n", + ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + return r; +} + +/** + * _scsih_target_reset - eh threads main target reset routine + * @scmd: pointer to scsi command object + * + * Returns SUCCESS if command aborted else FAILED + */ +static int +_scsih_target_reset(struct scsi_cmnd *scmd) +{ + struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct _sas_device *sas_device; + unsigned long flags; + u16 handle; + int r; + struct scsi_target *starget = scmd->device->sdev_target; + + starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n", + scmd); + _scsih_tm_display_info(ioc, scmd); + + sas_device_priv_data = scmd->device->hostdata; + if (!sas_device_priv_data || !sas_device_priv_data->sas_target) { + starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n", + scmd); + scmd->result = DID_NO_CONNECT << 16; + scmd->scsi_done(scmd); + r = SUCCESS; + goto out; + } + + /* for hidden raid components obtain the volume_handle */ + handle = 0; + if (sas_device_priv_data->sas_target->flags & + MPT_TARGET_FLAGS_RAID_COMPONENT) { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, + sas_device_priv_data->sas_target->handle); + if (sas_device) + handle = sas_device->volume_handle; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } else + handle = sas_device_priv_data->sas_target->handle; + + if (!handle) { + scmd->result = DID_RESET << 16; + r = FAILED; + goto out; + } + + r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel, + scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, + 30, 0, TM_MUTEX_ON); + + out: + starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n", + ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + return r; +} + + +/** + * _scsih_host_reset - eh threads main host reset routine + * @scmd: pointer to scsi command object + * + * Returns SUCCESS if command aborted else FAILED + */ +static int +_scsih_host_reset(struct scsi_cmnd *scmd) +{ + struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host); + int r, retval; + + pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n", + ioc->name, scmd); + scsi_print_command(scmd); + + retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, + FORCE_BIG_HAMMER); + r = (retval < 0) ? FAILED : SUCCESS; + pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n", + ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + + return r; +} + +/** + * _scsih_fw_event_add - insert and queue up fw_event + * @ioc: per adapter object + * @fw_event: object describing the event + * Context: This function will acquire ioc->fw_event_lock. + * + * This adds the firmware event object into link list, then queues it up to + * be processed from user context. + * + * Return nothing. + */ +static void +_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) +{ + unsigned long flags; + + if (ioc->firmware_event_thread == NULL) + return; + + spin_lock_irqsave(&ioc->fw_event_lock, flags); + INIT_LIST_HEAD(&fw_event->list); + list_add_tail(&fw_event->list, &ioc->fw_event_list); + INIT_WORK(&fw_event->work, _firmware_event_work); + queue_work(ioc->firmware_event_thread, &fw_event->work); + spin_unlock_irqrestore(&ioc->fw_event_lock, flags); +} + +/** + * _scsih_fw_event_free - delete fw_event + * @ioc: per adapter object + * @fw_event: object describing the event + * Context: This function will acquire ioc->fw_event_lock. + * + * This removes firmware event object from link list, frees associated memory. + * + * Return nothing. + */ +static void +_scsih_fw_event_free(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work + *fw_event) +{ + unsigned long flags; + + spin_lock_irqsave(&ioc->fw_event_lock, flags); + list_del(&fw_event->list); + kfree(fw_event->event_data); + kfree(fw_event); + spin_unlock_irqrestore(&ioc->fw_event_lock, flags); +} + + + /** + * mpt3sas_send_trigger_data_event - send event for processing trigger data + * @ioc: per adapter object + * @event_data: trigger event data + * + * Return nothing. + */ +void +mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc, + struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data) +{ + struct fw_event_work *fw_event; + + if (ioc->is_driver_loading) + return; + fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + if (!fw_event) + return; + fw_event->event_data = kzalloc(sizeof(*event_data), GFP_ATOMIC); + if (!fw_event->event_data) + return; + fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG; + fw_event->ioc = ioc; + memcpy(fw_event->event_data, event_data, sizeof(*event_data)); + _scsih_fw_event_add(ioc, fw_event); +} + +/** + * _scsih_error_recovery_delete_devices - remove devices not responding + * @ioc: per adapter object + * + * Return nothing. + */ +static void +_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc) +{ + struct fw_event_work *fw_event; + + if (ioc->is_driver_loading) + return; + fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + if (!fw_event) + return; + fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES; + fw_event->ioc = ioc; + _scsih_fw_event_add(ioc, fw_event); +} + +/** + * mpt3sas_port_enable_complete - port enable completed (fake event) + * @ioc: per adapter object + * + * Return nothing. + */ +void +mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc) +{ + struct fw_event_work *fw_event; + + fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + if (!fw_event) + return; + fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE; + fw_event->ioc = ioc; + _scsih_fw_event_add(ioc, fw_event); +} + +/** + * _scsih_fw_event_cleanup_queue - cleanup event queue + * @ioc: per adapter object + * + * Walk the firmware event queue, either killing timers, or waiting + * for outstanding events to complete + * + * Return nothing. + */ +static void +_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) +{ + struct fw_event_work *fw_event, *next; + + if (list_empty(&ioc->fw_event_list) || + !ioc->firmware_event_thread || in_interrupt()) + return; + + list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) { + if (cancel_delayed_work(&fw_event->delayed_work)) { + _scsih_fw_event_free(ioc, fw_event); + continue; + } + fw_event->cancel_pending_work = 1; + } +} + +/** + * _scsih_ublock_io_all_device - unblock every device + * @ioc: per adapter object + * + * change the device state from block to running + */ +static void +_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + + shost_for_each_device(sdev, ioc->shost) { + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (!sas_device_priv_data->block) + continue; + + sas_device_priv_data->block = 0; + dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, + "device_running, handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle)); + scsi_internal_device_unblock(sdev, SDEV_RUNNING); + } +} + + +/** + * _scsih_ublock_io_device - prepare device to be deleted + * @ioc: per adapter object + * @sas_addr: sas address + * + * unblock then put device in offline state + */ +static void +_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + + shost_for_each_device(sdev, ioc->shost) { + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (sas_device_priv_data->sas_target->sas_address + != sas_address) + continue; + if (sas_device_priv_data->block) { + sas_device_priv_data->block = 0; + scsi_internal_device_unblock(sdev, SDEV_RUNNING); + } + } +} + +/** + * _scsih_block_io_all_device - set the device state to SDEV_BLOCK + * @ioc: per adapter object + * @handle: device handle + * + * During device pull we need to appropiately set the sdev state. + */ +static void +_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + + shost_for_each_device(sdev, ioc->shost) { + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (sas_device_priv_data->block) + continue; + sas_device_priv_data->block = 1; + scsi_internal_device_block(sdev); + sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle); + } +} + +/** + * _scsih_block_io_device - set the device state to SDEV_BLOCK + * @ioc: per adapter object + * @handle: device handle + * + * During device pull we need to appropiately set the sdev state. + */ +static void +_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle) +{ + struct MPT3SAS_DEVICE *sas_device_priv_data; + struct scsi_device *sdev; + + shost_for_each_device(sdev, ioc->shost) { + sas_device_priv_data = sdev->hostdata; + if (!sas_device_priv_data) + continue; + if (sas_device_priv_data->sas_target->handle != handle) + continue; + if (sas_device_priv_data->block) + continue; + sas_device_priv_data->block = 1; + scsi_internal_device_block(sdev); + sdev_printk(KERN_INFO, sdev, + "device_blocked, handle(0x%04x)\n", handle); + } +} + +/** + * _scsih_block_io_to_children_attached_to_ex + * @ioc: per adapter object + * @sas_expander: the sas_device object + * + * This routine set sdev state to SDEV_BLOCK for all devices + * attached to this expander. This function called when expander is + * pulled. + */ +static void +_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc, + struct _sas_node *sas_expander) +{ + struct _sas_port *mpt3sas_port; + struct _sas_device *sas_device; + struct _sas_node *expander_sibling; + unsigned long flags; + + if (!sas_expander) + return; + + list_for_each_entry(mpt3sas_port, + &sas_expander->sas_port_list, port_list) { + if (mpt3sas_port->remote_identify.device_type == + SAS_END_DEVICE) { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = + mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + mpt3sas_port->remote_identify.sas_address); + if (sas_device) + set_bit(sas_device->handle, + ioc->blocking_handles); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } + } + + list_for_each_entry(mpt3sas_port, + &sas_expander->sas_port_list, port_list) { + + if (mpt3sas_port->remote_identify.device_type == + SAS_EDGE_EXPANDER_DEVICE || + mpt3sas_port->remote_identify.device_type == + SAS_FANOUT_EXPANDER_DEVICE) { + expander_sibling = + mpt3sas_scsih_expander_find_by_sas_address( + ioc, mpt3sas_port->remote_identify.sas_address); + _scsih_block_io_to_children_attached_to_ex(ioc, + expander_sibling); + } + } +} + +/** + * _scsih_block_io_to_children_attached_directly + * @ioc: per adapter object + * @event_data: topology change event data + * + * This routine set sdev state to SDEV_BLOCK for all devices + * direct attached during device pull. + */ +static void +_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc, + Mpi2EventDataSasTopologyChangeList_t *event_data) +{ + int i; + u16 handle; + u16 reason_code; + u8 phy_number; + + for (i = 0; i < event_data->NumEntries; i++) { + handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); + if (!handle) + continue; + phy_number = event_data->StartPhyNum + i; + reason_code = event_data->PHY[i].PhyStatus & + MPI2_EVENT_SAS_TOPO_RC_MASK; + if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING) + _scsih_block_io_device(ioc, handle); + } +} -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
