/drivers/scsi/mpt2sas/mpt2sas_base.c
C | 4137 lines | 2931 code | 462 blank | 744 comment | 435 complexity | cbe05a0652a7ea53f2c93f1e287a1dad MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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- /*
- * This is the Fusion MPT base driver providing common API layer interface
- * for access to MPT (Message Passing Technology) firmware.
- *
- * This code is based on drivers/scsi/mpt2sas/mpt2_base.c
- * Copyright (C) 2007-2010 LSI Corporation
- * (mailto:DL-MPTFusionLinux@lsi.com)
- *
- * 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/kernel.h>
- #include <linux/module.h>
- #include <linux/errno.h>
- #include <linux/init.h>
- #include <linux/slab.h>
- #include <linux/types.h>
- #include <linux/pci.h>
- #include <linux/kdev_t.h>
- #include <linux/blkdev.h>
- #include <linux/delay.h>
- #include <linux/interrupt.h>
- #include <linux/dma-mapping.h>
- #include <linux/sort.h>
- #include <linux/io.h>
- #include <linux/time.h>
- #include <linux/aer.h>
- #include "mpt2sas_base.h"
- static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS];
- #define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
- static int max_queue_depth = -1;
- module_param(max_queue_depth, int, 0);
- MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
- static int max_sgl_entries = -1;
- module_param(max_sgl_entries, int, 0);
- MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
- static int msix_disable = -1;
- module_param(msix_disable, int, 0);
- MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
- 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");
- /* 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;
- 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 mpt2sas_fwfault_debug;
- MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault "
- "and halt firmware - (default=0)");
- static int disable_discovery = -1;
- module_param(disable_discovery, int, 0);
- MODULE_PARM_DESC(disable_discovery, " disable discovery ");
- /**
- * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
- *
- */
- static int
- _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
- {
- int ret = param_set_int(val, kp);
- struct MPT2SAS_ADAPTER *ioc;
- if (ret)
- return ret;
- printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
- list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
- ioc->fwfault_debug = mpt2sas_fwfault_debug;
- return 0;
- }
- module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
- param_get_int, &mpt2sas_fwfault_debug, 0644);
- /**
- * _base_fault_reset_work - workq handling ioc fault conditions
- * @work: input argument, used to derive ioc
- * Context: sleep.
- *
- * Return nothing.
- */
- static void
- _base_fault_reset_work(struct work_struct *work)
- {
- struct MPT2SAS_ADAPTER *ioc =
- container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
- unsigned long flags;
- u32 doorbell;
- int rc;
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->shost_recovery)
- goto rearm_timer;
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
- doorbell = mpt2sas_base_get_iocstate(ioc, 0);
- if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
- rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
- FORCE_BIG_HAMMER);
- printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
- __func__, (rc == 0) ? "success" : "failed");
- doorbell = mpt2sas_base_get_iocstate(ioc, 0);
- if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
- mpt2sas_base_fault_info(ioc, doorbell &
- MPI2_DOORBELL_DATA_MASK);
- }
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- rearm_timer:
- if (ioc->fault_reset_work_q)
- queue_delayed_work(ioc->fault_reset_work_q,
- &ioc->fault_reset_work,
- msecs_to_jiffies(FAULT_POLLING_INTERVAL));
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
- }
- /**
- * mpt2sas_base_start_watchdog - start the fault_reset_work_q
- * @ioc: per adapter object
- * Context: sleep.
- *
- * Return nothing.
- */
- void
- mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc)
- {
- unsigned long flags;
- if (ioc->fault_reset_work_q)
- return;
- /* initialize fault polling */
- INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
- snprintf(ioc->fault_reset_work_q_name,
- sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
- ioc->fault_reset_work_q =
- create_singlethread_workqueue(ioc->fault_reset_work_q_name);
- if (!ioc->fault_reset_work_q) {
- printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n",
- ioc->name, __func__, __LINE__);
- return;
- }
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- if (ioc->fault_reset_work_q)
- queue_delayed_work(ioc->fault_reset_work_q,
- &ioc->fault_reset_work,
- msecs_to_jiffies(FAULT_POLLING_INTERVAL));
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
- }
- /**
- * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q
- * @ioc: per adapter object
- * Context: sleep.
- *
- * Return nothing.
- */
- void
- mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc)
- {
- unsigned long flags;
- struct workqueue_struct *wq;
- spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- wq = ioc->fault_reset_work_q;
- ioc->fault_reset_work_q = NULL;
- spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
- if (wq) {
- if (!cancel_delayed_work(&ioc->fault_reset_work))
- flush_workqueue(wq);
- destroy_workqueue(wq);
- }
- }
- /**
- * mpt2sas_base_fault_info - verbose translation of firmware FAULT code
- * @ioc: per adapter object
- * @fault_code: fault code
- *
- * Return nothing.
- */
- void
- mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
- {
- printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
- ioc->name, fault_code);
- }
- /**
- * mpt2sas_halt_firmware - halt's mpt controller firmware
- * @ioc: per adapter object
- *
- * For debugging timeout related issues. Writing 0xCOFFEE00
- * to the doorbell register will halt controller firmware. With
- * the purpose to stop both driver and firmware, the enduser can
- * obtain a ring buffer from controller UART.
- */
- void
- mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc)
- {
- u32 doorbell;
- if (!ioc->fwfault_debug)
- return;
- dump_stack();
- doorbell = readl(&ioc->chip->Doorbell);
- if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
- mpt2sas_base_fault_info(ioc , doorbell);
- else {
- writel(0xC0FFEE00, &ioc->chip->Doorbell);
- printk(MPT2SAS_ERR_FMT "Firmware is halted due to command "
- "timeout\n", ioc->name);
- }
- panic("panic in %s\n", __func__);
- }
- #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
- /**
- * _base_sas_ioc_info - verbose translation of the ioc status
- * @ioc: per adapter object
- * @mpi_reply: reply mf payload returned from firmware
- * @request_hdr: request mf
- *
- * Return nothing.
- */
- static void
- _base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
- MPI2RequestHeader_t *request_hdr)
- {
- u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
- MPI2_IOCSTATUS_MASK;
- char *desc = NULL;
- u16 frame_sz;
- char *func_str = NULL;
- /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
- if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
- request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
- request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
- return;
- if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
- return;
- switch (ioc_status) {
- /****************************************************************************
- * Common IOCStatus values for all replies
- ****************************************************************************/
- case MPI2_IOCSTATUS_INVALID_FUNCTION:
- desc = "invalid function";
- break;
- case MPI2_IOCSTATUS_BUSY:
- desc = "busy";
- break;
- case MPI2_IOCSTATUS_INVALID_SGL:
- desc = "invalid sgl";
- break;
- case MPI2_IOCSTATUS_INTERNAL_ERROR:
- desc = "internal error";
- break;
- case MPI2_IOCSTATUS_INVALID_VPID:
- desc = "invalid vpid";
- break;
- case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
- desc = "insufficient resources";
- break;
- case MPI2_IOCSTATUS_INVALID_FIELD:
- desc = "invalid field";
- break;
- case MPI2_IOCSTATUS_INVALID_STATE:
- desc = "invalid state";
- break;
- case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
- desc = "op state not supported";
- break;
- /****************************************************************************
- * Config IOCStatus values
- ****************************************************************************/
- case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
- desc = "config invalid action";
- break;
- case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
- desc = "config invalid type";
- break;
- case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
- desc = "config invalid page";
- break;
- case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
- desc = "config invalid data";
- break;
- case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
- desc = "config no defaults";
- break;
- case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
- desc = "config cant commit";
- break;
- /****************************************************************************
- * SCSI IO Reply
- ****************************************************************************/
- case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
- case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
- case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
- case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
- case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
- case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
- case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
- case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
- case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
- case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
- case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
- case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
- break;
- /****************************************************************************
- * For use by SCSI Initiator and SCSI Target end-to-end data protection
- ****************************************************************************/
- case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
- desc = "eedp guard error";
- break;
- case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
- desc = "eedp ref tag error";
- break;
- case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
- desc = "eedp app tag error";
- break;
- /****************************************************************************
- * SCSI Target values
- ****************************************************************************/
- case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
- desc = "target invalid io index";
- break;
- case MPI2_IOCSTATUS_TARGET_ABORTED:
- desc = "target aborted";
- break;
- case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
- desc = "target no conn retryable";
- break;
- case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
- desc = "target no connection";
- break;
- case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
- desc = "target xfer count mismatch";
- break;
- case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
- desc = "target data offset error";
- break;
- case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
- desc = "target too much write data";
- break;
- case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
- desc = "target iu too short";
- break;
- case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
- desc = "target ack nak timeout";
- break;
- case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
- desc = "target nak received";
- break;
- /****************************************************************************
- * Serial Attached SCSI values
- ****************************************************************************/
- case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
- desc = "smp request failed";
- break;
- case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
- desc = "smp data overrun";
- break;
- /****************************************************************************
- * Diagnostic Buffer Post / Diagnostic Release values
- ****************************************************************************/
- case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
- desc = "diagnostic released";
- break;
- default:
- break;
- }
- if (!desc)
- return;
- switch (request_hdr->Function) {
- case MPI2_FUNCTION_CONFIG:
- frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
- func_str = "config_page";
- break;
- case MPI2_FUNCTION_SCSI_TASK_MGMT:
- frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
- func_str = "task_mgmt";
- break;
- case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
- frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
- func_str = "sas_iounit_ctl";
- break;
- case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
- frame_sz = sizeof(Mpi2SepRequest_t);
- func_str = "enclosure";
- break;
- case MPI2_FUNCTION_IOC_INIT:
- frame_sz = sizeof(Mpi2IOCInitRequest_t);
- func_str = "ioc_init";
- break;
- case MPI2_FUNCTION_PORT_ENABLE:
- frame_sz = sizeof(Mpi2PortEnableRequest_t);
- func_str = "port_enable";
- break;
- case MPI2_FUNCTION_SMP_PASSTHROUGH:
- frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
- func_str = "smp_passthru";
- break;
- default:
- frame_sz = 32;
- func_str = "unknown";
- break;
- }
- printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
- " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
- _debug_dump_mf(request_hdr, frame_sz/4);
- }
- /**
- * _base_display_event_data - verbose translation of firmware asyn events
- * @ioc: per adapter object
- * @mpi_reply: reply mf payload returned from firmware
- *
- * Return nothing.
- */
- static void
- _base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
- Mpi2EventNotificationReply_t *mpi_reply)
- {
- char *desc = NULL;
- u16 event;
- if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
- return;
- event = le16_to_cpu(mpi_reply->Event);
- switch (event) {
- case MPI2_EVENT_LOG_DATA:
- desc = "Log Data";
- break;
- case MPI2_EVENT_STATE_CHANGE:
- desc = "Status Change";
- break;
- case MPI2_EVENT_HARD_RESET_RECEIVED:
- desc = "Hard Reset Received";
- break;
- case MPI2_EVENT_EVENT_CHANGE:
- desc = "Event Change";
- break;
- case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
- desc = "Device Status Change";
- break;
- case MPI2_EVENT_IR_OPERATION_STATUS:
- if (!ioc->hide_ir_msg)
- desc = "IR Operation Status";
- break;
- case MPI2_EVENT_SAS_DISCOVERY:
- {
- Mpi2EventDataSasDiscovery_t *event_data =
- (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
- printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
- (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
- "start" : "stop");
- if (event_data->DiscoveryStatus)
- printk("discovery_status(0x%08x)",
- le32_to_cpu(event_data->DiscoveryStatus));
- printk("\n");
- return;
- }
- case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
- desc = "SAS Broadcast Primitive";
- break;
- case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
- desc = "SAS Init Device Status Change";
- break;
- case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
- desc = "SAS Init Table Overflow";
- break;
- case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
- desc = "SAS Topology Change List";
- break;
- case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
- desc = "SAS Enclosure Device Status Change";
- break;
- case MPI2_EVENT_IR_VOLUME:
- if (!ioc->hide_ir_msg)
- desc = "IR Volume";
- break;
- case MPI2_EVENT_IR_PHYSICAL_DISK:
- if (!ioc->hide_ir_msg)
- desc = "IR Physical Disk";
- break;
- case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
- if (!ioc->hide_ir_msg)
- desc = "IR Configuration Change List";
- break;
- case MPI2_EVENT_LOG_ENTRY_ADDED:
- if (!ioc->hide_ir_msg)
- desc = "Log Entry Added";
- break;
- }
- if (!desc)
- return;
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
- }
- #endif
- /**
- * _base_sas_log_info - verbose translation of firmware log info
- * @ioc: per adapter object
- * @log_info: log info
- *
- * Return nothing.
- */
- static void
- _base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
- {
- union loginfo_type {
- u32 loginfo;
- struct {
- u32 subcode:16;
- u32 code:8;
- u32 originator:4;
- u32 bus_type:4;
- } dw;
- };
- union loginfo_type sas_loginfo;
- char *originator_str = NULL;
- sas_loginfo.loginfo = log_info;
- if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
- return;
- /* each nexus loss loginfo */
- if (log_info == 0x31170000)
- return;
- /* eat the loginfos associated with task aborts */
- if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
- 0x31140000 || log_info == 0x31130000))
- return;
- switch (sas_loginfo.dw.originator) {
- case 0:
- originator_str = "IOP";
- break;
- case 1:
- originator_str = "PL";
- break;
- case 2:
- if (!ioc->hide_ir_msg)
- originator_str = "IR";
- else
- originator_str = "WarpDrive";
- break;
- }
- printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
- "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
- originator_str, sas_loginfo.dw.code,
- sas_loginfo.dw.subcode);
- }
- /**
- * _base_display_reply_info -
- * @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)
- *
- * Return nothing.
- */
- static void
- _base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
- u32 reply)
- {
- MPI2DefaultReply_t *mpi_reply;
- u16 ioc_status;
- mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
- ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
- #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
- if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
- (ioc->logging_level & MPT_DEBUG_REPLY)) {
- _base_sas_ioc_info(ioc , mpi_reply,
- mpt2sas_base_get_msg_frame(ioc, smid));
- }
- #endif
- if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
- _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
- }
- /**
- * mpt2sas_base_done - base internal command 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)
- *
- * Return 1 meaning mf should be freed from _base_interrupt
- * 0 means the mf is freed from this function.
- */
- u8
- mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
- u32 reply)
- {
- MPI2DefaultReply_t *mpi_reply;
- mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
- if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
- return 1;
- if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
- return 1;
- ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
- if (mpi_reply) {
- ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
- memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
- }
- ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
- complete(&ioc->base_cmds.done);
- return 1;
- }
- /**
- * _base_async_event - main callback handler for firmware asyn events
- * @ioc: per adapter object
- * @msix_index: MSIX table index supplied by the OS
- * @reply: reply message frame(lower 32bit addr)
- *
- * Return 1 meaning mf should be freed from _base_interrupt
- * 0 means the mf is freed from this function.
- */
- static u8
- _base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
- {
- Mpi2EventNotificationReply_t *mpi_reply;
- Mpi2EventAckRequest_t *ack_request;
- u16 smid;
- mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
- if (!mpi_reply)
- return 1;
- if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
- return 1;
- #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
- _base_display_event_data(ioc, mpi_reply);
- #endif
- if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
- goto out;
- smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
- if (!smid) {
- printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
- ioc->name, __func__);
- goto out;
- }
- ack_request = mpt2sas_base_get_msg_frame(ioc, smid);
- memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
- ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
- ack_request->Event = mpi_reply->Event;
- ack_request->EventContext = mpi_reply->EventContext;
- ack_request->VF_ID = 0; /* TODO */
- ack_request->VP_ID = 0;
- mpt2sas_base_put_smid_default(ioc, smid);
- out:
- /* scsih callback handler */
- mpt2sas_scsih_event_callback(ioc, msix_index, reply);
- /* ctl callback handler */
- mpt2sas_ctl_event_callback(ioc, msix_index, reply);
- return 1;
- }
- /**
- * _base_get_cb_idx - obtain the callback index
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Return callback index.
- */
- static u8
- _base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- int i;
- u8 cb_idx;
- if (smid < ioc->hi_priority_smid) {
- i = smid - 1;
- cb_idx = ioc->scsi_lookup[i].cb_idx;
- } else if (smid < ioc->internal_smid) {
- i = smid - ioc->hi_priority_smid;
- cb_idx = ioc->hpr_lookup[i].cb_idx;
- } else if (smid <= ioc->hba_queue_depth) {
- i = smid - ioc->internal_smid;
- cb_idx = ioc->internal_lookup[i].cb_idx;
- } else
- cb_idx = 0xFF;
- return cb_idx;
- }
- /**
- * _base_mask_interrupts - disable interrupts
- * @ioc: per adapter object
- *
- * Disabling ResetIRQ, Reply and Doorbell Interrupts
- *
- * Return nothing.
- */
- static void
- _base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc)
- {
- u32 him_register;
- ioc->mask_interrupts = 1;
- him_register = readl(&ioc->chip->HostInterruptMask);
- him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
- writel(him_register, &ioc->chip->HostInterruptMask);
- readl(&ioc->chip->HostInterruptMask);
- }
- /**
- * _base_unmask_interrupts - enable interrupts
- * @ioc: per adapter object
- *
- * Enabling only Reply Interrupts
- *
- * Return nothing.
- */
- static void
- _base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
- {
- u32 him_register;
- him_register = readl(&ioc->chip->HostInterruptMask);
- him_register &= ~MPI2_HIM_RIM;
- writel(him_register, &ioc->chip->HostInterruptMask);
- ioc->mask_interrupts = 0;
- }
- union reply_descriptor {
- u64 word;
- struct {
- u32 low;
- u32 high;
- } u;
- };
- /**
- * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
- * @irq: irq number (not used)
- * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
- * @r: pt_regs pointer (not used)
- *
- * Return IRQ_HANDLE if processed, else IRQ_NONE.
- */
- static irqreturn_t
- _base_interrupt(int irq, void *bus_id)
- {
- union reply_descriptor rd;
- u32 completed_cmds;
- u8 request_desript_type;
- u16 smid;
- u8 cb_idx;
- u32 reply;
- u8 msix_index;
- struct MPT2SAS_ADAPTER *ioc = bus_id;
- Mpi2ReplyDescriptorsUnion_t *rpf;
- u8 rc;
- if (ioc->mask_interrupts)
- return IRQ_NONE;
- rpf = &ioc->reply_post_free[ioc->reply_post_host_index];
- request_desript_type = rpf->Default.ReplyFlags
- & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
- if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
- return IRQ_NONE;
- completed_cmds = 0;
- cb_idx = 0xFF;
- do {
- rd.word = le64_to_cpu(rpf->Words);
- if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
- goto out;
- reply = 0;
- cb_idx = 0xFF;
- smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
- msix_index = rpf->Default.MSIxIndex;
- if (request_desript_type ==
- MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
- reply = le32_to_cpu
- (rpf->AddressReply.ReplyFrameAddress);
- if (reply > ioc->reply_dma_max_address ||
- reply < ioc->reply_dma_min_address)
- reply = 0;
- } else if (request_desript_type ==
- MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
- goto next;
- else if (request_desript_type ==
- MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
- goto next;
- if (smid)
- cb_idx = _base_get_cb_idx(ioc, smid);
- if (smid && cb_idx != 0xFF) {
- rc = mpt_callbacks[cb_idx](ioc, smid, msix_index,
- reply);
- if (reply)
- _base_display_reply_info(ioc, smid, msix_index,
- reply);
- if (rc)
- mpt2sas_base_free_smid(ioc, smid);
- }
- if (!smid)
- _base_async_event(ioc, msix_index, reply);
- /* reply free queue handling */
- if (reply) {
- ioc->reply_free_host_index =
- (ioc->reply_free_host_index ==
- (ioc->reply_free_queue_depth - 1)) ?
- 0 : ioc->reply_free_host_index + 1;
- ioc->reply_free[ioc->reply_free_host_index] =
- cpu_to_le32(reply);
- wmb();
- writel(ioc->reply_free_host_index,
- &ioc->chip->ReplyFreeHostIndex);
- }
- next:
- rpf->Words = cpu_to_le64(ULLONG_MAX);
- ioc->reply_post_host_index = (ioc->reply_post_host_index ==
- (ioc->reply_post_queue_depth - 1)) ? 0 :
- ioc->reply_post_host_index + 1;
- request_desript_type =
- ioc->reply_post_free[ioc->reply_post_host_index].Default.
- ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
- completed_cmds++;
- if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
- goto out;
- if (!ioc->reply_post_host_index)
- rpf = ioc->reply_post_free;
- else
- rpf++;
- } while (1);
- out:
- if (!completed_cmds)
- return IRQ_NONE;
- wmb();
- writel(ioc->reply_post_host_index, &ioc->chip->ReplyPostHostIndex);
- return IRQ_HANDLED;
- }
- /**
- * mpt2sas_base_release_callback_handler - clear interrupt callback handler
- * @cb_idx: callback index
- *
- * Return nothing.
- */
- void
- mpt2sas_base_release_callback_handler(u8 cb_idx)
- {
- mpt_callbacks[cb_idx] = NULL;
- }
- /**
- * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler
- * @cb_func: callback function
- *
- * Returns cb_func.
- */
- u8
- mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func)
- {
- u8 cb_idx;
- for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
- if (mpt_callbacks[cb_idx] == NULL)
- break;
- mpt_callbacks[cb_idx] = cb_func;
- return cb_idx;
- }
- /**
- * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler
- *
- * Return nothing.
- */
- void
- mpt2sas_base_initialize_callback_handler(void)
- {
- u8 cb_idx;
- for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
- mpt2sas_base_release_callback_handler(cb_idx);
- }
- /**
- * mpt2sas_base_build_zero_len_sge - build zero length sg entry
- * @ioc: per adapter object
- * @paddr: virtual address for SGE
- *
- * Create a zero length scatter gather entry to insure the IOCs hardware has
- * something to use if the target device goes brain dead and tries
- * to send data even when none is asked for.
- *
- * Return nothing.
- */
- void
- mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
- {
- u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
- MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
- MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
- MPI2_SGE_FLAGS_SHIFT);
- ioc->base_add_sg_single(paddr, flags_length, -1);
- }
- /**
- * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
- * @paddr: virtual address for SGE
- * @flags_length: SGE flags and data transfer length
- * @dma_addr: Physical address
- *
- * Return nothing.
- */
- static void
- _base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
- {
- Mpi2SGESimple32_t *sgel = paddr;
- flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
- MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
- sgel->FlagsLength = cpu_to_le32(flags_length);
- sgel->Address = cpu_to_le32(dma_addr);
- }
- /**
- * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
- * @paddr: virtual address for SGE
- * @flags_length: SGE flags and data transfer length
- * @dma_addr: Physical address
- *
- * Return nothing.
- */
- static void
- _base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
- {
- Mpi2SGESimple64_t *sgel = paddr;
- flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
- MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
- sgel->FlagsLength = cpu_to_le32(flags_length);
- sgel->Address = cpu_to_le64(dma_addr);
- }
- #define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
- /**
- * _base_config_dma_addressing - set dma addressing
- * @ioc: per adapter object
- * @pdev: PCI device struct
- *
- * Returns 0 for success, non-zero for failure.
- */
- static int
- _base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
- {
- struct sysinfo s;
- char *desc = NULL;
- if (sizeof(dma_addr_t) > 4) {
- const uint64_t required_mask =
- dma_get_required_mask(&pdev->dev);
- if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
- DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
- DMA_BIT_MASK(64))) {
- ioc->base_add_sg_single = &_base_add_sg_single_64;
- ioc->sge_size = sizeof(Mpi2SGESimple64_t);
- desc = "64";
- goto out;
- }
- }
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
- && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
- ioc->base_add_sg_single = &_base_add_sg_single_32;
- ioc->sge_size = sizeof(Mpi2SGESimple32_t);
- desc = "32";
- } else
- return -ENODEV;
- out:
- si_meminfo(&s);
- printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, "
- "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram));
- return 0;
- }
- /**
- * _base_check_enable_msix - checks MSIX capabable.
- * @ioc: per adapter object
- *
- * Check to see if card is capable of MSIX, and set number
- * of available msix vectors
- */
- static int
- _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
- {
- int base;
- u16 message_control;
- base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
- if (!base) {
- dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
- "supported\n", ioc->name));
- return -EINVAL;
- }
- /* get msix vector count */
- pci_read_config_word(ioc->pdev, base + 2, &message_control);
- ioc->msix_vector_count = (message_control & 0x3FF) + 1;
- dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
- "vector_count(%d)\n", ioc->name, ioc->msix_vector_count));
- return 0;
- }
- /**
- * _base_disable_msix - disables msix
- * @ioc: per adapter object
- *
- */
- static void
- _base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
- {
- if (ioc->msix_enable) {
- pci_disable_msix(ioc->pdev);
- ioc->msix_enable = 0;
- }
- }
- /**
- * _base_enable_msix - enables msix, failback to io_apic
- * @ioc: per adapter object
- *
- */
- static int
- _base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
- {
- struct msix_entry entries;
- int r;
- u8 try_msix = 0;
- if (msix_disable == -1 || msix_disable == 0)
- try_msix = 1;
- if (!try_msix)
- goto try_ioapic;
- if (_base_check_enable_msix(ioc) != 0)
- goto try_ioapic;
- memset(&entries, 0, sizeof(struct msix_entry));
- r = pci_enable_msix(ioc->pdev, &entries, 1);
- if (r) {
- dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
- "failed (r=%d) !!!\n", ioc->name, r));
- goto try_ioapic;
- }
- r = request_irq(entries.vector, _base_interrupt, IRQF_SHARED,
- ioc->name, ioc);
- if (r) {
- dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "unable to allocate "
- "interrupt %d !!!\n", ioc->name, entries.vector));
- pci_disable_msix(ioc->pdev);
- goto try_ioapic;
- }
- ioc->pci_irq = entries.vector;
- ioc->msix_enable = 1;
- return 0;
- /* failback to io_apic interrupt routing */
- try_ioapic:
- r = request_irq(ioc->pdev->irq, _base_interrupt, IRQF_SHARED,
- ioc->name, ioc);
- if (r) {
- printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
- ioc->name, ioc->pdev->irq);
- r = -EBUSY;
- goto out_fail;
- }
- ioc->pci_irq = ioc->pdev->irq;
- return 0;
- out_fail:
- return r;
- }
- /**
- * mpt2sas_base_map_resources - map in controller resources (io/irq/memap)
- * @ioc: per adapter object
- *
- * Returns 0 for success, non-zero for failure.
- */
- int
- mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc)
- {
- struct pci_dev *pdev = ioc->pdev;
- u32 memap_sz;
- u32 pio_sz;
- int i, r = 0;
- u64 pio_chip = 0;
- u64 chip_phys = 0;
- dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n",
- ioc->name, __func__));
- ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
- if (pci_enable_device_mem(pdev)) {
- printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
- "failed\n", ioc->name);
- return -ENODEV;
- }
- if (pci_request_selected_regions(pdev, ioc->bars,
- MPT2SAS_DRIVER_NAME)) {
- printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
- "failed\n", ioc->name);
- r = -ENODEV;
- goto out_fail;
- }
- /* AER (Advanced Error Reporting) hooks */
- pci_enable_pcie_error_reporting(pdev);
- pci_set_master(pdev);
- if (_base_config_dma_addressing(ioc, pdev) != 0) {
- printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
- ioc->name, pci_name(pdev));
- r = -ENODEV;
- goto out_fail;
- }
- for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
- if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
- if (pio_sz)
- continue;
- pio_chip = (u64)pci_resource_start(pdev, i);
- pio_sz = pci_resource_len(pdev, i);
- } else {
- if (memap_sz)
- continue;
- /* verify memory resource is valid before using */
- if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
- ioc->chip_phys = pci_resource_start(pdev, i);
- chip_phys = (u64)ioc->chip_phys;
- memap_sz = pci_resource_len(pdev, i);
- ioc->chip = ioremap(ioc->chip_phys, memap_sz);
- if (ioc->chip == NULL) {
- printk(MPT2SAS_ERR_FMT "unable to map "
- "adapter memory!\n", ioc->name);
- r = -EINVAL;
- goto out_fail;
- }
- }
- }
- }
- _base_mask_interrupts(ioc);
- r = _base_enable_msix(ioc);
- if (r)
- goto out_fail;
- printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
- ioc->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
- "IO-APIC enabled"), ioc->pci_irq);
- printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
- ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
- printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n",
- ioc->name, (unsigned long long)pio_chip, pio_sz);
- /* Save PCI configuration state for recovery from PCI AER/EEH errors */
- pci_save_state(pdev);
- return 0;
- out_fail:
- if (ioc->chip_phys)
- iounmap(ioc->chip);
- ioc->chip_phys = 0;
- ioc->pci_irq = -1;
- pci_release_selected_regions(ioc->pdev, ioc->bars);
- pci_disable_pcie_error_reporting(pdev);
- pci_disable_device(pdev);
- return r;
- }
- /**
- * mpt2sas_base_get_msg_frame - obtain request mf pointer
- * @ioc: per adapter object
- * @smid: system request message index(smid zero is invalid)
- *
- * Returns virt pointer to message frame.
- */
- void *
- mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- return (void *)(ioc->request + (smid * ioc->request_sz));
- }
- /**
- * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Returns virt pointer to sense buffer.
- */
- void *
- mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
- }
- /**
- * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Returns phys pointer to the low 32bit address of the sense buffer.
- */
- __le32
- mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- return cpu_to_le32(ioc->sense_dma +
- ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
- }
- /**
- * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address
- * @ioc: per adapter object
- * @phys_addr: lower 32 physical addr of the reply
- *
- * Converts 32bit lower physical addr into a virt address.
- */
- void *
- mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
- {
- if (!phys_addr)
- return NULL;
- return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
- }
- /**
- * mpt2sas_base_get_smid - obtain a free smid from internal queue
- * @ioc: per adapter object
- * @cb_idx: callback index
- *
- * Returns smid (zero is invalid)
- */
- u16
- mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
- {
- unsigned long flags;
- struct request_tracker *request;
- u16 smid;
- spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
- if (list_empty(&ioc->internal_free_list)) {
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
- ioc->name, __func__);
- return 0;
- }
- request = list_entry(ioc->internal_free_list.next,
- struct request_tracker, tracker_list);
- request->cb_idx = cb_idx;
- smid = request->smid;
- list_del(&request->tracker_list);
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- return smid;
- }
- /**
- * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
- * @ioc: per adapter object
- * @cb_idx: callback index
- * @scmd: pointer to scsi command object
- *
- * Returns smid (zero is invalid)
- */
- u16
- mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx,
- struct scsi_cmnd *scmd)
- {
- unsigned long flags;
- struct scsiio_tracker *request;
- u16 smid;
- spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
- if (list_empty(&ioc->free_list)) {
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
- ioc->name, __func__);
- return 0;
- }
- request = list_entry(ioc->free_list.next,
- struct scsiio_tracker, tracker_list);
- request->scmd = scmd;
- request->cb_idx = cb_idx;
- smid = request->smid;
- list_del(&request->tracker_list);
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- return smid;
- }
- /**
- * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
- * @ioc: per adapter object
- * @cb_idx: callback index
- *
- * Returns smid (zero is invalid)
- */
- u16
- mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
- {
- unsigned long flags;
- struct request_tracker *request;
- u16 smid;
- spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
- if (list_empty(&ioc->hpr_free_list)) {
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- return 0;
- }
- request = list_entry(ioc->hpr_free_list.next,
- struct request_tracker, tracker_list);
- request->cb_idx = cb_idx;
- smid = request->smid;
- list_del(&request->tracker_list);
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- return smid;
- }
- /**
- * mpt2sas_base_free_smid - put smid back on free_list
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Return nothing.
- */
- void
- mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- unsigned long flags;
- int i;
- struct chain_tracker *chain_req, *next;
- spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
- if (smid < ioc->hi_priority_smid) {
- /* scsiio queue */
- i = smid - 1;
- if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
- list_for_each_entry_safe(chain_req, next,
- &ioc->scsi_lookup[i].chain_list, tracker_list) {
- list_del_init(&chain_req->tracker_list);
- list_add_tail(&chain_req->tracker_list,
- &ioc->free_chain_list);
- }
- }
- ioc->scsi_lookup[i].cb_idx = 0xFF;
- ioc->scsi_lookup[i].scmd = NULL;
- ioc->scsi_lookup[i].direct_io = 0;
- list_add_tail(&ioc->scsi_lookup[i].tracker_list,
- &ioc->free_list);
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- /*
- * See _wait_for_commands_to_complete() call with regards
- * to this code.
- */
- if (ioc->shost_recovery && ioc->pending_io_count) {
- if (ioc->pending_io_count == 1)
- wake_up(&ioc->reset_wq);
- ioc->pending_io_count--;
- }
- return;
- } else if (smid < ioc->internal_smid) {
- /* hi-priority */
- i = smid - ioc->hi_priority_smid;
- ioc->hpr_lookup[i].cb_idx = 0xFF;
- list_add_tail(&ioc->hpr_lookup[i].tracker_list,
- &ioc->hpr_free_list);
- } else if (smid <= ioc->hba_queue_depth) {
- /* internal queue */
- i = smid - ioc->internal_smid;
- ioc->internal_lookup[i].cb_idx = 0xFF;
- list_add_tail(&ioc->internal_lookup[i].tracker_list,
- &ioc->internal_free_list);
- }
- spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- }
- /**
- * _base_writeq - 64 bit write to MMIO
- * @ioc: per adapter object
- * @b: data payload
- * @addr: address in MMIO space
- * @writeq_lock: spin lock
- *
- * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
- * care of 32 bit environment where its not quarenteed to send the entire word
- * in one transfer.
- */
- #ifndef writeq
- static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
- spinlock_t *writeq_lock)
- {
- unsigned long flags;
- __u64 data_out = cpu_to_le64(b);
- spin_lock_irqsave(writeq_lock, flags);
- writel((u32)(data_out), addr);
- writel((u32)(data_out >> 32), (addr + 4));
- spin_unlock_irqrestore(writeq_lock, flags);
- }
- #else
- static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
- spinlock_t *writeq_lock)
- {
- writeq(cpu_to_le64(b), addr);
- }
- #endif
- /**
- * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
- * @ioc: per adapter object
- * @smid: system request message index
- * @handle: device handle
- *
- * Return nothing.
- */
- void
- mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
- {
- Mpi2RequestDescriptorUnion_t descriptor;
- u64 *request = (u64 *)&descriptor;
- descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
- descriptor.SCSIIO.MSIxIndex = 0; /* TODO */
- descriptor.SCSIIO.SMID = cpu_to_le16(smid);
- descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
- descriptor.SCSIIO.LMID = 0;
- _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
- &ioc->scsi_lookup_lock);
- }
- /**
- * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Return nothing.
- */
- void
- mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- Mpi2RequestDescriptorUnion_t descriptor;
- u64 *request = (u64 *)&descriptor;
- descriptor.HighPriority.RequestFlags =
- MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
- descriptor.HighPriority.MSIxIndex = 0; /* TODO */
- descriptor.HighPriority.SMID = cpu_to_le16(smid);
- descriptor.HighPriority.LMID = 0;
- descriptor.HighPriority.Reserved1 = 0;
- _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
- &ioc->scsi_lookup_lock);
- }
- /**
- * mpt2sas_base_put_smid_default - Default, primarily used for config pages
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Return nothing.
- */
- void
- mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid)
- {
- Mpi2RequestDescriptorUnion_t descriptor;
- u64 *request = (u64 *)&descriptor;
- descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
- descriptor.Default.MSIxIndex = 0; /* TODO */
- descriptor.Default.SMID = cpu_to_le16(smid);
- descriptor.Default.LMID = 0;
- descriptor.Default.DescriptorTypeDependent = 0;
- _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
- &ioc->scsi_lookup_lock);
- }
- /**
- * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware
- * @ioc: per adapter object
- * @smid: system request message index
- * @io_index: value used to track the IO
- *
- * Return nothing.
- */
- void
- mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
- u16 io_index)
- {
- Mpi2RequestDescriptorUnion_t descriptor;
- u64 *request = (u64 *)&descriptor;
- descriptor.SCSITarget.RequestFlags =
- MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
- descriptor.SCSITarget.MSIxIndex = 0; /* TODO */
- descriptor.SCSITarget.SMID = cpu_to_le16(smid);
- descriptor.SCSITarget.LMID = 0;
- descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
- _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
- &ioc->scsi_lookup_lock);
- }
- /**
- * _base_display_dell_branding - Disply branding string
- * @ioc: per adapter object
- *
- * Return nothing.
- */
- static void
- _base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc)
- {
- char dell_branding[MPT2SAS_DELL_BRANDING_SIZE];
- if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
- return;
- memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE);
- switch (ioc->pdev->subsystem_device) {
- case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID:
- strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID:
- strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID:
- strncpy(dell_branding,
- MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID:
- strncpy(dell_branding,
- MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID:
- strncpy(dell_branding,
- MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_PERC_H200_SSDID:
- strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- case MPT2SAS_DELL_6GBPS_SAS_SSDID:
- strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING,
- MPT2SAS_DELL_BRANDING_SIZE - 1);
- break;
- default:
- sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device);
- break;
- }
- printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X),"
- " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding,
- ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor,
- ioc->pdev->subsystem_device);
- }
- /**
- * _base_display_intel_branding - Display branding string
- * @ioc: per adapter object
- *
- * Return nothing.
- */
- static void
- _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
- {
- if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
- return;
- switch (ioc->pdev->device) {
- case MPI2_MFGPAGE_DEVID_SAS2008:
- switch (ioc->pdev->subsystem_device) {
- case MPT2SAS_INTEL_RMS2LL080_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_INTEL_RMS2LL080_BRANDING);
- break;
- case MPT2SAS_INTEL_RMS2LL040_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_INTEL_RMS2LL040_BRANDING);
- break;
- default:
- break;
- }
- case MPI2_MFGPAGE_DEVID_SAS2308_2:
- switch (ioc->pdev->subsystem_device) {
- case MPT2SAS_INTEL_RS25GB008_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_INTEL_RS25GB008_BRANDING);
- break;
- default:
- break;
- }
- default:
- break;
- }
- }
- /**
- * _base_display_hp_branding - Display branding string
- * @ioc: per adapter object
- *
- * Return nothing.
- */
- static void
- _base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc)
- {
- if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID)
- return;
- switch (ioc->pdev->device) {
- case MPI2_MFGPAGE_DEVID_SAS2004:
- switch (ioc->pdev->subsystem_device) {
- case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING);
- break;
- default:
- break;
- }
- case MPI2_MFGPAGE_DEVID_SAS2308_2:
- switch (ioc->pdev->subsystem_device) {
- case MPT2SAS_HP_2_4_INTERNAL_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_HP_2_4_INTERNAL_BRANDING);
- break;
- case MPT2SAS_HP_2_4_EXTERNAL_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_HP_2_4_EXTERNAL_BRANDING);
- break;
- case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING);
- break;
- case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID:
- printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
- MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING);
- break;
- default:
- break;
- }
- default:
- break;
- }
- }
- /**
- * _base_display_ioc_capabilities - Disply IOC's capabilities.
- * @ioc: per adapter object
- *
- * Return nothing.
- */
- static void
- _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
- {
- int i = 0;
- char desc[16];
- u8 revision;
- u32 iounit_pg1_flags;
- u32 bios_version;
- bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
- pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
- strncpy(desc, ioc->manu_pg0.ChipName, 16);
- printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
- "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
- ioc->name, desc,
- (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
- (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
- (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
- ioc->facts.FWVersion.Word & 0x000000FF,
- revision,
- (bios_version & 0xFF000000) >> 24,
- (bios_version & 0x00FF0000) >> 16,
- (bios_version & 0x0000FF00) >> 8,
- bios_version & 0x000000FF);
- _base_display_dell_branding(ioc);
- _base_display_intel_branding(ioc);
- _base_display_hp_branding(ioc);
- printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
- if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
- printk("Initiator");
- i++;
- }
- if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
- printk("%sTarget", i ? "," : "");
- i++;
- }
- i = 0;
- printk("), ");
- printk("Capabilities=(");
- if (!ioc->hide_ir_msg) {
- if (ioc->facts.IOCCapabilities &
- MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
- printk("Raid");
- i++;
- }
- }
- if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAP…
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