/*
+ * Linux MegaRAID driver for SAS based RAID controllers
*
- * Linux MegaRAID driver for SAS based RAID controllers
+ * Copyright (c) 2009-2011 LSI Corporation.
*
- * Copyright (c) 2003-2005 LSI Corporation.
+ * 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 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.
*
- * FILE : megaraid_sas.c
- * Version : v00.00.04.31-rc1
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * Authors:
- * (email-id : megaraidlinux@lsi.com)
- * Sreenivas Bagalkote
- * Sumant Patro
- * Bo Yang
+ * FILE: megaraid_sas_base.c
+ * Version : v00.00.05.29-rc1
*
- * List of supported controllers
+ * Authors: LSI Corporation
+ * Sreenivas Bagalkote
+ * Sumant Patro
+ * Bo Yang
*
- * OEM Product Name VID DID SSVID SSID
- * --- ------------ --- --- ---- ----
+ * Send feedback to: <megaraidlinux@lsi.com>
+ *
+ * Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
+ * ATTN: Linuxraid
*/
#include <linux/kernel.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
+#include "megaraid_sas_fusion.h"
#include "megaraid_sas.h"
/*
MODULE_PARM_DESC(max_sectors,
"Maximum number of sectors per IO command");
+static int msix_disable;
+module_param(msix_disable, int, S_IRUGO);
+MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
+
MODULE_LICENSE("GPL");
MODULE_VERSION(MEGASAS_VERSION);
MODULE_AUTHOR("megaraidlinux@lsi.com");
MODULE_DESCRIPTION("LSI MegaRAID SAS Driver");
-static int megasas_transition_to_ready(struct megasas_instance *instance);
+int megasas_transition_to_ready(struct megasas_instance *instance);
static int megasas_get_pd_list(struct megasas_instance *instance);
static int megasas_issue_init_mfi(struct megasas_instance *instance);
static int megasas_register_aen(struct megasas_instance *instance,
/* xscale IOP, vega */
{PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
/* xscale IOP */
+ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
+ /* Fusion */
{}
};
static int megasas_poll_wait_aen;
static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
static u32 support_poll_for_event;
-static u32 megasas_dbg_lvl;
+u32 megasas_dbg_lvl;
static u32 support_device_change;
/* define lock for aen poll */
spinlock_t poll_aen_lock;
-static void
+void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
u8 alt_status);
+static irqreturn_t megasas_isr(int irq, void *devp);
+static u32
+megasas_init_adapter_mfi(struct megasas_instance *instance);
+u32
+megasas_build_and_issue_cmd(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd);
+static void megasas_complete_cmd_dpc(unsigned long instance_addr);
+void
+megasas_release_fusion(struct megasas_instance *instance);
+int
+megasas_ioc_init_fusion(struct megasas_instance *instance);
+void
+megasas_free_cmds_fusion(struct megasas_instance *instance);
+u8
+megasas_get_map_info(struct megasas_instance *instance);
+int
+megasas_sync_map_info(struct megasas_instance *instance);
+int
+wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd);
+void megasas_reset_reply_desc(struct megasas_instance *instance);
+u8 MR_ValidateMapInfo(struct MR_FW_RAID_MAP_ALL *map,
+ struct LD_LOAD_BALANCE_INFO *lbInfo);
+int megasas_reset_fusion(struct Scsi_Host *shost);
+void megasas_fusion_ocr_wq(struct work_struct *work);
+
+void
+megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
+{
+ instance->instancet->fire_cmd(instance,
+ cmd->frame_phys_addr, 0, instance->reg_set);
+}
+
/**
* megasas_get_cmd - Get a command from the free pool
* @instance: Adapter soft state
*
* Returns a free command from the pool
*/
-static struct megasas_cmd *megasas_get_cmd(struct megasas_instance
+struct megasas_cmd *megasas_get_cmd(struct megasas_instance
*instance)
{
unsigned long flags;
* @instance: Adapter soft state
* @cmd: Command packet to be returned to free command pool
*/
-static inline void
+inline void
megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
unsigned long flags;
spin_lock_irqsave(&instance->cmd_pool_lock, flags);
cmd->scmd = NULL;
+ cmd->frame_count = 0;
list_add_tail(&cmd->list, &instance->cmd_pool);
spin_unlock_irqrestore(&instance->cmd_pool_lock, flags);
/**
-* The following functions are defined for xscale
+* The following functions are defined for xscale
* (deviceid : 1064R, PERC5) controllers
*/
* megasas_clear_interrupt_xscale - Check & clear interrupt
* @regs: MFI register set
*/
-static int
+static int
megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
{
u32 status;
* @frame_count : Number of frames for the command
* @regs : MFI register set
*/
-static inline void
+static inline void
megasas_fire_cmd_xscale(struct megasas_instance *instance,
dma_addr_t frame_phys_addr,
u32 frame_count,
.read_fw_status_reg = megasas_read_fw_status_reg_xscale,
.adp_reset = megasas_adp_reset_xscale,
.check_reset = megasas_check_reset_xscale,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
-* This is the end of set of functions & definitions specific
+* This is the end of set of functions & definitions specific
* to xscale (deviceid : 1064R, PERC5) controllers
*/
/**
-* The following functions are defined for ppc (deviceid : 0x60)
+* The following functions are defined for ppc (deviceid : 0x60)
* controllers
*/
megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
{
writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
-
+
writel(~0x80000000, &(regs)->outbound_intr_mask);
/* Dummy readl to force pci flush */
* megasas_clear_interrupt_ppc - Check & clear interrupt
* @regs: MFI register set
*/
-static int
+static int
megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
{
u32 status;
* @frame_count : Number of frames for the command
* @regs : MFI register set
*/
-static inline void
+static inline void
megasas_fire_cmd_ppc(struct megasas_instance *instance,
dma_addr_t frame_phys_addr,
u32 frame_count,
{
unsigned long flags;
spin_lock_irqsave(&instance->hba_lock, flags);
- writel((frame_phys_addr | (frame_count<<1))|1,
+ writel((frame_phys_addr | (frame_count<<1))|1,
&(regs)->inbound_queue_port);
spin_unlock_irqrestore(&instance->hba_lock, flags);
}
return 0;
}
static struct megasas_instance_template megasas_instance_template_ppc = {
-
+
.fire_cmd = megasas_fire_cmd_ppc,
.enable_intr = megasas_enable_intr_ppc,
.disable_intr = megasas_disable_intr_ppc,
.read_fw_status_reg = megasas_read_fw_status_reg_ppc,
.adp_reset = megasas_adp_reset_ppc,
.check_reset = megasas_check_reset_ppc,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
.adp_reset = megasas_adp_reset_skinny,
.check_reset = megasas_check_reset_skinny,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
.read_fw_status_reg = megasas_read_fw_status_reg_gen2,
.adp_reset = megasas_adp_reset_gen2,
.check_reset = megasas_check_reset_gen2,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
* specific to gen2 (deviceid : 0x78, 0x79) controllers
*/
+/*
+ * Template added for TB (Fusion)
+ */
+extern struct megasas_instance_template megasas_instance_template_fusion;
+
/**
* megasas_issue_polled - Issues a polling command
* @instance: Adapter soft state
- * @cmd: Command packet to be issued
+ * @cmd: Command packet to be issued
*
* For polling, MFI requires the cmd_status to be set to 0xFF before posting.
*/
-static int
+int
megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
- int i;
- u32 msecs = MFI_POLL_TIMEOUT_SECS * 1000;
struct megasas_header *frame_hdr = &cmd->frame->hdr;
/*
* Issue the frame using inbound queue port
*/
- instance->instancet->fire_cmd(instance,
- cmd->frame_phys_addr, 0, instance->reg_set);
+ instance->instancet->issue_dcmd(instance, cmd);
/*
* Wait for cmd_status to change
*/
- for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i++) {
- rmb();
- msleep(1);
- }
-
- if (frame_hdr->cmd_status == 0xff)
- return -ETIME;
-
- return 0;
+ return wait_and_poll(instance, cmd);
}
/**
{
cmd->cmd_status = ENODATA;
- instance->instancet->fire_cmd(instance,
- cmd->frame_phys_addr, 0, instance->reg_set);
+ instance->instancet->issue_dcmd(instance, cmd);
wait_event(instance->int_cmd_wait_q, cmd->cmd_status != ENODATA);
cmd->sync_cmd = 1;
cmd->cmd_status = 0xFF;
- instance->instancet->fire_cmd(instance,
- cmd->frame_phys_addr, 0, instance->reg_set);
+ instance->instancet->issue_dcmd(instance, cmd);
/*
* Wait for this cmd to complete
/**
* megasas_is_ldio - Checks if the cmd is for logical drive
* @scmd: SCSI command
- *
+ *
* Called by megasas_queue_command to find out if the command to be queued
- * is a logical drive command
+ * is a logical drive command
*/
-static inline int megasas_is_ldio(struct scsi_cmnd *cmd)
+inline int megasas_is_ldio(struct scsi_cmnd *cmd)
{
if (!MEGASAS_IS_LOGICAL(cmd))
return 0;
printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no);
}
+u32
+megasas_build_and_issue_cmd(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd)
+{
+ struct megasas_cmd *cmd;
+ u32 frame_count;
+
+ cmd = megasas_get_cmd(instance);
+ if (!cmd)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ /*
+ * Logical drive command
+ */
+ if (megasas_is_ldio(scmd))
+ frame_count = megasas_build_ldio(instance, scmd, cmd);
+ else
+ frame_count = megasas_build_dcdb(instance, scmd, cmd);
+
+ if (!frame_count)
+ goto out_return_cmd;
+
+ cmd->scmd = scmd;
+ scmd->SCp.ptr = (char *)cmd;
+
+ /*
+ * Issue the command to the FW
+ */
+ atomic_inc(&instance->fw_outstanding);
+
+ instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
+ cmd->frame_count-1, instance->reg_set);
+ /*
+ * Check if we have pend cmds to be completed
+ */
+ if (poll_mode_io && atomic_read(&instance->fw_outstanding))
+ tasklet_schedule(&instance->isr_tasklet);
+
+ return 0;
+out_return_cmd:
+ megasas_return_cmd(instance, cmd);
+ return 1;
+}
+
+
/**
* megasas_queue_command - Queue entry point
* @scmd: SCSI command to be queued
static int
megasas_queue_command_lck(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
{
- u32 frame_count;
- struct megasas_cmd *cmd;
struct megasas_instance *instance;
unsigned long flags;
break;
}
- cmd = megasas_get_cmd(instance);
- if (!cmd)
+ if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
+ printk(KERN_ERR "megasas: Err returned from build_and_issue_cmd\n");
return SCSI_MLQUEUE_HOST_BUSY;
-
- /*
- * Logical drive command
- */
- if (megasas_is_ldio(scmd))
- frame_count = megasas_build_ldio(instance, scmd, cmd);
- else
- frame_count = megasas_build_dcdb(instance, scmd, cmd);
-
- if (!frame_count)
- goto out_return_cmd;
-
- cmd->scmd = scmd;
- scmd->SCp.ptr = (char *)cmd;
-
- /*
- * Issue the command to the FW
- */
- atomic_inc(&instance->fw_outstanding);
-
- instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
- cmd->frame_count-1, instance->reg_set);
- /*
- * Check if we have pend cmds to be completed
- */
- if (poll_mode_io && atomic_read(&instance->fw_outstanding))
- tasklet_schedule(&instance->isr_tasklet);
-
+ }
return 0;
- out_return_cmd:
- megasas_return_cmd(instance, cmd);
out_done:
done(scmd);
return 0;
return 0;
}
-static void megaraid_sas_kill_hba(struct megasas_instance *instance)
+void megaraid_sas_kill_hba(struct megasas_instance *instance)
{
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
- (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
- writel(MFI_STOP_ADP,
- &instance->reg_set->reserved_0[0]);
+ (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
+ (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)) {
+ writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
} else {
- writel(MFI_STOP_ADP,
- &instance->reg_set->inbound_doorbell);
+ writel(MFI_STOP_ADP, &instance->reg_set->inbound_doorbell);
+ }
+}
+
+ /**
+ * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
+ * restored to max value
+ * @instance: Adapter soft state
+ *
+ */
+void
+megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
+{
+ unsigned long flags;
+ if (instance->flag & MEGASAS_FW_BUSY
+ && time_after(jiffies, instance->last_time + 5 * HZ)
+ && atomic_read(&instance->fw_outstanding) < 17) {
+
+ spin_lock_irqsave(instance->host->host_lock, flags);
+ instance->flag &= ~MEGASAS_FW_BUSY;
+ if ((instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
+ (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
+ instance->host->can_queue =
+ instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS;
+ } else
+ instance->host->can_queue =
+ instance->max_fw_cmds - MEGASAS_INT_CMDS;
+
+ spin_unlock_irqrestore(instance->host->host_lock, flags);
}
}
/*
* Check if we can restore can_queue
*/
- if (instance->flag & MEGASAS_FW_BUSY
- && time_after(jiffies, instance->last_time + 5 * HZ)
- && atomic_read(&instance->fw_outstanding) < 17) {
-
- spin_lock_irqsave(instance->host->host_lock, flags);
- instance->flag &= ~MEGASAS_FW_BUSY;
- if ((instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
- (instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
- instance->host->can_queue =
- instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS;
- } else
- instance->host->can_queue =
- instance->max_fw_cmds - MEGASAS_INT_CMDS;
-
- spin_unlock_irqrestore(instance->host->host_lock, flags);
- }
+ megasas_check_and_restore_queue_depth(instance);
}
static void
(instance->pdev->device ==
PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
writel(MFI_STOP_ADP,
- &instance->reg_set->reserved_0[0]);
+ &instance->reg_set->doorbell);
} else {
writel(MFI_STOP_ADP,
&instance->reg_set->inbound_doorbell);
static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
{
int ret;
+ struct megasas_instance *instance;
+ instance = (struct megasas_instance *)scmd->device->host->hostdata;
/*
* First wait for all commands to complete
*/
- ret = megasas_generic_reset(scmd);
+ if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)
+ ret = megasas_reset_fusion(scmd->device->host);
+ else
+ ret = megasas_generic_reset(scmd);
return ret;
}
* @instance: Adapter soft state
* @cmd: Cmd that was issued to abort another cmd
*
- * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
- * after it issues an abort on a previously issued command. This function
+ * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
+ * after it issues an abort on a previously issued command. This function
* wakes up all functions waiting on the same wait queue.
*/
static void
* megasas_complete_cmd - Completes a command
* @instance: Adapter soft state
* @cmd: Command to be completed
- * @alt_status: If non-zero, use this value as status to
+ * @alt_status: If non-zero, use this value as status to
* SCSI mid-layer instead of the value returned
* by the FW. This should be used if caller wants
* an alternate status (as in the case of aborted
* commands)
*/
-static void
+void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
u8 alt_status)
{
int exception = 0;
struct megasas_header *hdr = &cmd->frame->hdr;
unsigned long flags;
+ struct fusion_context *fusion = instance->ctrl_context;
/* flag for the retry reset */
cmd->retry_for_fw_reset = 0;
case MFI_CMD_SMP:
case MFI_CMD_STP:
case MFI_CMD_DCMD:
+ /* Check for LD map update */
+ if ((cmd->frame->dcmd.opcode == MR_DCMD_LD_MAP_GET_INFO) &&
+ (cmd->frame->dcmd.mbox.b[1] == 1)) {
+ spin_lock_irqsave(instance->host->host_lock, flags);
+ if (cmd->frame->hdr.cmd_status != 0) {
+ if (cmd->frame->hdr.cmd_status !=
+ MFI_STAT_NOT_FOUND)
+ printk(KERN_WARNING "megasas: map sync"
+ "failed, status = 0x%x.\n",
+ cmd->frame->hdr.cmd_status);
+ else {
+ megasas_return_cmd(instance, cmd);
+ spin_unlock_irqrestore(
+ instance->host->host_lock,
+ flags);
+ break;
+ }
+ } else
+ instance->map_id++;
+ megasas_return_cmd(instance, cmd);
+ if (MR_ValidateMapInfo(
+ fusion->ld_map[(instance->map_id & 1)],
+ fusion->load_balance_info))
+ fusion->fast_path_io = 1;
+ else
+ fusion->fast_path_io = 0;
+ megasas_sync_map_info(instance);
+ spin_unlock_irqrestore(instance->host->host_lock,
+ flags);
+ break;
+ }
if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET) {
spin_lock_irqsave(&poll_aen_lock, flags);
* states, driver must take steps to bring it to ready state. Otherwise, it
* has to wait for the ready state.
*/
-static int
+int
megasas_transition_to_ready(struct megasas_instance* instance)
{
int i;
fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
if (fw_state != MFI_STATE_READY)
- printk(KERN_INFO "megasas: Waiting for FW to come to ready"
- " state\n");
+ printk(KERN_INFO "megasas: Waiting for FW to come to ready"
+ " state\n");
while (fw_state != MFI_STATE_READY) {
if ((instance->pdev->device ==
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
(instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
-
+ PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
+ (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_FUSION)) {
writel(
MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
- &instance->reg_set->reserved_0[0]);
+ &instance->reg_set->doorbell);
} else {
writel(
MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
case MFI_STATE_BOOT_MESSAGE_PENDING:
if ((instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
- (instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
+ PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
+ (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
+ (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_FUSION)) {
writel(MFI_INIT_HOTPLUG,
- &instance->reg_set->reserved_0[0]);
+ &instance->reg_set->doorbell);
} else
writel(MFI_INIT_HOTPLUG,
&instance->reg_set->inbound_doorbell);
if ((instance->pdev->device ==
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
(instance->pdev->device ==
- PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
+ PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
+ (instance->pdev->device
+ == PCI_DEVICE_ID_LSI_FUSION)) {
writel(MFI_RESET_FLAGS,
- &instance->reg_set->reserved_0[0]);
+ &instance->reg_set->doorbell);
+ if (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_FUSION) {
+ for (i = 0; i < (10 * 1000); i += 20) {
+ if (readl(
+ &instance->
+ reg_set->
+ doorbell) & 1)
+ msleep(20);
+ else
+ break;
+ }
+ }
} else
writel(MFI_RESET_FLAGS,
&instance->reg_set->inbound_doorbell);
* The cur_state should not last for more than max_wait secs
*/
for (i = 0; i < (max_wait * 1000); i++) {
- fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) &
+ fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) &
MFI_STATE_MASK ;
curr_abs_state =
instance->instancet->read_fw_status_reg(instance->reg_set);
return -ENODEV;
}
}
- printk(KERN_INFO "megasas: FW now in Ready state\n");
+ printk(KERN_INFO "megasas: FW now in Ready state\n");
return 0;
}
static void megasas_teardown_frame_pool(struct megasas_instance *instance)
{
int i;
- u32 max_cmd = instance->max_fw_cmds;
+ u32 max_cmd = instance->max_mfi_cmds;
struct megasas_cmd *cmd;
if (!instance->frame_dma_pool)
u32 frame_count;
struct megasas_cmd *cmd;
- max_cmd = instance->max_fw_cmds;
+ max_cmd = instance->max_mfi_cmds;
/*
* Size of our frame is 64 bytes for MFI frame, followed by max SG
* megasas_free_cmds - Free all the cmds in the free cmd pool
* @instance: Adapter soft state
*/
-static void megasas_free_cmds(struct megasas_instance *instance)
+void megasas_free_cmds(struct megasas_instance *instance)
{
int i;
/* First free the MFI frame pool */
megasas_teardown_frame_pool(instance);
/* Free all the commands in the cmd_list */
- for (i = 0; i < instance->max_fw_cmds; i++)
+ for (i = 0; i < instance->max_mfi_cmds; i++)
+
kfree(instance->cmd_list[i]);
/* Free the cmd_list buffer itself */
* This array is used only to look up the megasas_cmd given the context. The
* free commands themselves are maintained in a linked list called cmd_pool.
*/
-static int megasas_alloc_cmds(struct megasas_instance *instance)
+int megasas_alloc_cmds(struct megasas_instance *instance)
{
int i;
int j;
u32 max_cmd;
struct megasas_cmd *cmd;
- max_cmd = instance->max_fw_cmds;
+ max_cmd = instance->max_mfi_cmds;
/*
* instance->cmd_list is an array of struct megasas_cmd pointers.
return -ENOMEM;
}
+ memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
for (i = 0; i < max_cmd; i++) {
instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
jiffies + MEGASAS_COMPLETION_TIMER_INTERVAL);
}
-/**
- * megasas_init_mfi - Initializes the FW
- * @instance: Adapter soft state
- *
- * This is the main function for initializing MFI firmware.
- */
-static int megasas_init_mfi(struct megasas_instance *instance)
+static u32
+megasas_init_adapter_mfi(struct megasas_instance *instance)
{
+ struct megasas_register_set __iomem *reg_set;
u32 context_sz;
u32 reply_q_sz;
- u32 max_sectors_1;
- u32 max_sectors_2;
- u32 tmp_sectors;
- struct megasas_register_set __iomem *reg_set;
- struct megasas_ctrl_info *ctrl_info;
- /*
- * Map the message registers
- */
- if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
- (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
- (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
- (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0079GEN2)) {
- instance->base_addr = pci_resource_start(instance->pdev, 1);
- } else {
- instance->base_addr = pci_resource_start(instance->pdev, 0);
- }
-
- if (pci_request_selected_regions(instance->pdev,
- pci_select_bars(instance->pdev, IORESOURCE_MEM),
- "megasas: LSI")) {
- printk(KERN_DEBUG "megasas: IO memory region busy!\n");
- return -EBUSY;
- }
-
- instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
-
- if (!instance->reg_set) {
- printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
- goto fail_ioremap;
- }
reg_set = instance->reg_set;
- switch(instance->pdev->device)
- {
- case PCI_DEVICE_ID_LSI_SAS1078R:
- case PCI_DEVICE_ID_LSI_SAS1078DE:
- instance->instancet = &megasas_instance_template_ppc;
- break;
- case PCI_DEVICE_ID_LSI_SAS1078GEN2:
- case PCI_DEVICE_ID_LSI_SAS0079GEN2:
- instance->instancet = &megasas_instance_template_gen2;
- break;
- case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
- case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
- instance->instancet = &megasas_instance_template_skinny;
- break;
- case PCI_DEVICE_ID_LSI_SAS1064R:
- case PCI_DEVICE_ID_DELL_PERC5:
- default:
- instance->instancet = &megasas_instance_template_xscale;
- break;
- }
-
- /*
- * We expect the FW state to be READY
- */
- if (megasas_transition_to_ready(instance))
- goto fail_ready_state;
-
/*
* Get various operational parameters from status register
*/
* does not exceed max cmds that the FW can support
*/
instance->max_fw_cmds = instance->max_fw_cmds-1;
- instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
+ instance->max_mfi_cmds = instance->max_fw_cmds;
+ instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
0x10;
/*
* Create a pool of commands
if (instance->fw_support_ieee)
instance->flag_ieee = 1;
+ return 0;
+
+fail_fw_init:
+
+ pci_free_consistent(instance->pdev, reply_q_sz,
+ instance->reply_queue, instance->reply_queue_h);
+fail_reply_queue:
+ megasas_free_cmds(instance);
+
+fail_alloc_cmds:
+ iounmap(instance->reg_set);
+ return 1;
+}
+
+/**
+ * megasas_init_fw - Initializes the FW
+ * @instance: Adapter soft state
+ *
+ * This is the main function for initializing firmware
+ */
+
+static int megasas_init_fw(struct megasas_instance *instance)
+{
+ u32 max_sectors_1;
+ u32 max_sectors_2;
+ u32 tmp_sectors;
+ struct megasas_register_set __iomem *reg_set;
+ struct megasas_ctrl_info *ctrl_info;
+ unsigned long bar_list;
+
+ /* Find first memory bar */
+ bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
+ instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
+ instance->base_addr = pci_resource_start(instance->pdev, instance->bar);
+ if (pci_request_selected_regions(instance->pdev, instance->bar,
+ "megasas: LSI")) {
+ printk(KERN_DEBUG "megasas: IO memory region busy!\n");
+ return -EBUSY;
+ }
+
+ instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
+
+ if (!instance->reg_set) {
+ printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
+ goto fail_ioremap;
+ }
+
+ reg_set = instance->reg_set;
+
+ switch (instance->pdev->device) {
+ case PCI_DEVICE_ID_LSI_FUSION:
+ instance->instancet = &megasas_instance_template_fusion;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1078R:
+ case PCI_DEVICE_ID_LSI_SAS1078DE:
+ instance->instancet = &megasas_instance_template_ppc;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1078GEN2:
+ case PCI_DEVICE_ID_LSI_SAS0079GEN2:
+ instance->instancet = &megasas_instance_template_gen2;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
+ case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
+ instance->instancet = &megasas_instance_template_skinny;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1064R:
+ case PCI_DEVICE_ID_DELL_PERC5:
+ default:
+ instance->instancet = &megasas_instance_template_xscale;
+ break;
+ }
+
+ /*
+ * We expect the FW state to be READY
+ */
+ if (megasas_transition_to_ready(instance))
+ goto fail_ready_state;
+
+ /* Get operational params, sge flags, send init cmd to controller */
+ if (instance->instancet->init_adapter(instance))
+ return -ENODEV;
+
+ printk(KERN_ERR "megasas: INIT adapter done\n");
+
/** for passthrough
* the following function will get the PD LIST.
*/
MEGASAS_COMPLETION_TIMER_INTERVAL);
return 0;
- fail_fw_init:
-
- pci_free_consistent(instance->pdev, reply_q_sz,
- instance->reply_queue, instance->reply_queue_h);
- fail_reply_queue:
- megasas_free_cmds(instance);
-
- fail_alloc_cmds:
- fail_ready_state:
+fail_ready_state:
iounmap(instance->reg_set);
fail_ioremap:
- pci_release_selected_regions(instance->pdev,
- pci_select_bars(instance->pdev, IORESOURCE_MEM));
+ pci_release_selected_regions(instance->pdev, instance->bar);
return -EINVAL;
}
*/
static void megasas_release_mfi(struct megasas_instance *instance)
{
- u32 reply_q_sz = sizeof(u32) * (instance->max_fw_cmds + 1);
+ u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
- pci_free_consistent(instance->pdev, reply_q_sz,
+ if (instance->reply_queue)
+ pci_free_consistent(instance->pdev, reply_q_sz,
instance->reply_queue, instance->reply_queue_h);
megasas_free_cmds(instance);
iounmap(instance->reg_set);
- pci_release_selected_regions(instance->pdev,
- pci_select_bars(instance->pdev, IORESOURCE_MEM));
+ pci_release_selected_regions(instance->pdev, instance->bar);
}
/**
/*
* Issue the aen registration frame
*/
- instance->instancet->fire_cmd(instance,
- cmd->frame_phys_addr, 0, instance->reg_set);
+ instance->instancet->issue_dcmd(instance, cmd);
return 0;
}
}
host->max_sectors = instance->max_sectors_per_req;
- host->cmd_per_lun = 128;
+ host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
host->max_channel = MEGASAS_MAX_CHANNELS - 1;
host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
host->max_lun = MEGASAS_MAX_LUN;
host->max_cmd_len = 16;
+ /* Fusion only supports host reset */
+ if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) {
+ host->hostt->eh_device_reset_handler = NULL;
+ host->hostt->eh_bus_reset_handler = NULL;
+ }
+
/*
* Notify the mid-layer about the new controller
*/
/**
* megasas_probe_one - PCI hotplug entry point
* @pdev: PCI device structure
- * @id: PCI ids of supported hotplugged adapter
+ * @id: PCI ids of supported hotplugged adapter
*/
static int __devinit
megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
instance = (struct megasas_instance *)host->hostdata;
memset(instance, 0, sizeof(*instance));
atomic_set( &instance->fw_reset_no_pci_access, 0 );
+ instance->pdev = pdev;
- instance->producer = pci_alloc_consistent(pdev, sizeof(u32),
- &instance->producer_h);
- instance->consumer = pci_alloc_consistent(pdev, sizeof(u32),
- &instance->consumer_h);
+ switch (instance->pdev->device) {
+ case PCI_DEVICE_ID_LSI_FUSION:
+ {
+ struct fusion_context *fusion;
+
+ instance->ctrl_context =
+ kzalloc(sizeof(struct fusion_context), GFP_KERNEL);
+ if (!instance->ctrl_context) {
+ printk(KERN_DEBUG "megasas: Failed to allocate "
+ "memory for Fusion context info\n");
+ goto fail_alloc_dma_buf;
+ }
+ fusion = instance->ctrl_context;
+ INIT_LIST_HEAD(&fusion->cmd_pool);
+ spin_lock_init(&fusion->cmd_pool_lock);
+ }
+ break;
+ default: /* For all other supported controllers */
+
+ instance->producer =
+ pci_alloc_consistent(pdev, sizeof(u32),
+ &instance->producer_h);
+ instance->consumer =
+ pci_alloc_consistent(pdev, sizeof(u32),
+ &instance->consumer_h);
+
+ if (!instance->producer || !instance->consumer) {
+ printk(KERN_DEBUG "megasas: Failed to allocate"
+ "memory for producer, consumer\n");
+ goto fail_alloc_dma_buf;
+ }
- if (!instance->producer || !instance->consumer) {
- printk(KERN_DEBUG "megasas: Failed to allocate memory for "
- "producer, consumer\n");
- goto fail_alloc_dma_buf;
+ *instance->producer = 0;
+ *instance->consumer = 0;
+ break;
}
- *instance->producer = 0;
- *instance->consumer = 0;
megasas_poll_wait_aen = 0;
instance->flag_ieee = 0;
instance->ev = NULL;
spin_lock_init(&poll_aen_lock);
mutex_init(&instance->aen_mutex);
+ mutex_init(&instance->reset_mutex);
/*
* Initialize PCI related and misc parameters
*/
- instance->pdev = pdev;
instance->host = host;
instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
instance->init_id = MEGASAS_DEFAULT_INIT_ID;
instance->last_time = 0;
instance->disableOnlineCtrlReset = 1;
- INIT_WORK(&instance->work_init, process_fw_state_change_wq);
+ if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)
+ INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
+ else
+ INIT_WORK(&instance->work_init, process_fw_state_change_wq);
/*
* Initialize MFI Firmware
*/
- if (megasas_init_mfi(instance))
+ if (megasas_init_fw(instance))
goto fail_init_mfi;
+ /* Try to enable MSI-X */
+ if ((instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078R) &&
+ (instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078DE) &&
+ (instance->pdev->device != PCI_DEVICE_ID_LSI_VERDE_ZCR) &&
+ !msix_disable && !pci_enable_msix(instance->pdev,
+ &instance->msixentry, 1))
+ instance->msi_flag = 1;
+
/*
* Register IRQ
*/
- if (request_irq(pdev->irq, megasas_isr, IRQF_SHARED, "megasas", instance)) {
+ if (request_irq(instance->msi_flag ? instance->msixentry.vector :
+ pdev->irq, instance->instancet->service_isr,
+ IRQF_SHARED, "megasas", instance)) {
printk(KERN_DEBUG "megasas: Failed to register IRQ\n");
goto fail_irq;
}
pci_set_drvdata(pdev, NULL);
instance->instancet->disable_intr(instance->reg_set);
- free_irq(instance->pdev->irq, instance);
-
- megasas_release_mfi(instance);
+ free_irq(instance->msi_flag ? instance->msixentry.vector :
+ instance->pdev->irq, instance);
+ if (instance->msi_flag)
+ pci_disable_msix(instance->pdev);
fail_irq:
fail_init_mfi:
instance->evt_detail,
instance->evt_detail_h);
- if (instance->producer)
+ if (instance->producer) {
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
+ megasas_release_mfi(instance);
+ } else {
+ megasas_release_fusion(instance);
+ }
if (instance->consumer)
pci_free_consistent(pdev, sizeof(u32), instance->consumer,
instance->consumer_h);
if (instance->aen_cmd)
megasas_issue_blocked_abort_cmd(instance, instance->aen_cmd);
-
+ if (instance->map_update_cmd)
+ megasas_issue_blocked_abort_cmd(instance,
+ instance->map_update_cmd);
dcmd = &cmd->frame->dcmd;
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
pci_set_drvdata(instance->pdev, instance);
instance->instancet->disable_intr(instance->reg_set);
- free_irq(instance->pdev->irq, instance);
+ free_irq(instance->msi_flag ? instance->msixentry.vector :
+ instance->pdev->irq, instance);
+ if (instance->msi_flag)
+ pci_disable_msix(instance->pdev);
pci_save_state(pdev);
pci_disable_device(pdev);
* Initialize MFI Firmware
*/
- *instance->producer = 0;
- *instance->consumer = 0;
-
atomic_set(&instance->fw_outstanding, 0);
/*
if (megasas_transition_to_ready(instance))
goto fail_ready_state;
- if (megasas_issue_init_mfi(instance))
- goto fail_init_mfi;
+ switch (instance->pdev->device) {
+ case PCI_DEVICE_ID_LSI_FUSION:
+ {
+ megasas_reset_reply_desc(instance);
+ if (megasas_ioc_init_fusion(instance)) {
+ megasas_free_cmds(instance);
+ megasas_free_cmds_fusion(instance);
+ goto fail_init_mfi;
+ }
+ if (!megasas_get_map_info(instance))
+ megasas_sync_map_info(instance);
+ }
+ break;
+ default:
+ *instance->producer = 0;
+ *instance->consumer = 0;
+ if (megasas_issue_init_mfi(instance))
+ goto fail_init_mfi;
+ break;
+ }
- tasklet_init(&instance->isr_tasklet, megasas_complete_cmd_dpc,
- (unsigned long)instance);
+ tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
+ (unsigned long)instance);
+
+ /* Now re-enable MSI-X */
+ if (instance->msi_flag)
+ pci_enable_msix(instance->pdev, &instance->msixentry, 1);
/*
* Register IRQ
*/
- if (request_irq(pdev->irq, megasas_isr, IRQF_SHARED,
- "megasas", instance)) {
+ if (request_irq(instance->msi_flag ? instance->msixentry.vector :
+ pdev->irq, instance->instancet->service_isr,
+ IRQF_SHARED, "megasas", instance)) {
printk(KERN_ERR "megasas: Failed to register IRQ\n");
goto fail_irq;
}
int i;
struct Scsi_Host *host;
struct megasas_instance *instance;
+ struct fusion_context *fusion;
instance = pci_get_drvdata(pdev);
instance->unload = 1;
host = instance->host;
+ fusion = instance->ctrl_context;
if (poll_mode_io)
del_timer_sync(&instance->io_completion_timer);
instance->instancet->disable_intr(instance->reg_set);
- free_irq(instance->pdev->irq, instance);
-
- megasas_release_mfi(instance);
-
- pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
- instance->evt_detail, instance->evt_detail_h);
-
- pci_free_consistent(pdev, sizeof(u32), instance->producer,
- instance->producer_h);
-
- pci_free_consistent(pdev, sizeof(u32), instance->consumer,
- instance->consumer_h);
+ free_irq(instance->msi_flag ? instance->msixentry.vector :
+ instance->pdev->irq, instance);
+ if (instance->msi_flag)
+ pci_disable_msix(instance->pdev);
+
+ switch (instance->pdev->device) {
+ case PCI_DEVICE_ID_LSI_FUSION:
+ megasas_release_fusion(instance);
+ for (i = 0; i < 2 ; i++)
+ if (fusion->ld_map[i])
+ dma_free_coherent(&instance->pdev->dev,
+ fusion->map_sz,
+ fusion->ld_map[i],
+ fusion->
+ ld_map_phys[i]);
+ kfree(instance->ctrl_context);
+ break;
+ default:
+ megasas_release_mfi(instance);
+ pci_free_consistent(pdev,
+ sizeof(struct megasas_evt_detail),
+ instance->evt_detail,
+ instance->evt_detail_h);
+ pci_free_consistent(pdev, sizeof(u32),
+ instance->producer,
+ instance->producer_h);
+ pci_free_consistent(pdev, sizeof(u32),
+ instance->consumer,
+ instance->consumer_h);
+ break;
+ }
scsi_host_put(host);
break;
case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
case MR_EVT_FOREIGN_CFG_IMPORTED:
+ case MR_EVT_LD_STATE_CHANGE:
doscan = 1;
break;
default:
pci_unregister_driver(&megasas_pci_driver);
err_pcidrv:
unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
- return rval;
+ return rval;
}
/**
projects / mv-sheeva.git / blobdiff