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path: root/drivers/scsi/megaraid/megaraid_sas_fusion.c
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Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c439
1 files changed, 379 insertions, 60 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 3ed03dfab76c..f37eed682c75 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -50,6 +50,7 @@
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_dbg.h>
#include "megaraid_sas_fusion.h"
#include "megaraid_sas.h"
@@ -76,8 +77,6 @@ megasas_issue_polled(struct megasas_instance *instance,
void
megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
-u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo,
- struct IO_REQUEST_INFO *in_info);
int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
void megaraid_sas_kill_hba(struct megasas_instance *instance);
@@ -91,6 +90,8 @@ void megasas_start_timer(struct megasas_instance *instance,
extern struct megasas_mgmt_info megasas_mgmt_info;
extern int resetwaittime;
+
+
/**
* megasas_enable_intr_fusion - Enables interrupts
* @regs: MFI register set
@@ -163,7 +164,7 @@ struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
(struct fusion_context *)instance->ctrl_context;
struct megasas_cmd_fusion *cmd = NULL;
- spin_lock_irqsave(&fusion->cmd_pool_lock, flags);
+ spin_lock_irqsave(&fusion->mpt_pool_lock, flags);
if (!list_empty(&fusion->cmd_pool)) {
cmd = list_entry((&fusion->cmd_pool)->next,
@@ -173,7 +174,7 @@ struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
printk(KERN_ERR "megasas: Command pool (fusion) empty!\n");
}
- spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags);
+ spin_unlock_irqrestore(&fusion->mpt_pool_lock, flags);
return cmd;
}
@@ -182,21 +183,47 @@ struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
* @instance: Adapter soft state
* @cmd: Command packet to be returned to free command pool
*/
-static inline void
-megasas_return_cmd_fusion(struct megasas_instance *instance,
- struct megasas_cmd_fusion *cmd)
+inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
+ struct megasas_cmd_fusion *cmd)
{
unsigned long flags;
struct fusion_context *fusion =
(struct fusion_context *)instance->ctrl_context;
- spin_lock_irqsave(&fusion->cmd_pool_lock, flags);
+ spin_lock_irqsave(&fusion->mpt_pool_lock, flags);
cmd->scmd = NULL;
cmd->sync_cmd_idx = (u32)ULONG_MAX;
- list_add_tail(&cmd->list, &fusion->cmd_pool);
+ list_add(&cmd->list, (&fusion->cmd_pool)->next);
- spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags);
+ spin_unlock_irqrestore(&fusion->mpt_pool_lock, flags);
+}
+
+/**
+ * megasas_return_mfi_mpt_pthr - Return a mfi and mpt to free command pool
+ * @instance: Adapter soft state
+ * @cmd_mfi: MFI Command packet to be returned to free command pool
+ * @cmd_mpt: MPT Command packet to be returned to free command pool
+ */
+inline void megasas_return_mfi_mpt_pthr(struct megasas_instance *instance,
+ struct megasas_cmd *cmd_mfi,
+ struct megasas_cmd_fusion *cmd_fusion)
+{
+ unsigned long flags;
+
+ /*
+ * TO DO: optimize this code and use only one lock instead of two
+ * locks being used currently- mpt_pool_lock is acquired
+ * inside mfi_pool_lock
+ */
+ spin_lock_irqsave(&instance->mfi_pool_lock, flags);
+ megasas_return_cmd_fusion(instance, cmd_fusion);
+ if (atomic_read(&cmd_mfi->mfi_mpt_pthr) != MFI_MPT_ATTACHED)
+ dev_err(&instance->pdev->dev, "Possible bug from %s %d\n",
+ __func__, __LINE__);
+ atomic_set(&cmd_mfi->mfi_mpt_pthr, MFI_MPT_DETACHED);
+ __megasas_return_cmd(instance, cmd_mfi);
+ spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
}
/**
@@ -562,9 +589,11 @@ wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
{
int i;
struct megasas_header *frame_hdr = &cmd->frame->hdr;
+ struct fusion_context *fusion;
u32 msecs = seconds * 1000;
+ fusion = instance->ctrl_context;
/*
* Wait for cmd_status to change
*/
@@ -573,8 +602,12 @@ wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
msleep(20);
}
- if (frame_hdr->cmd_status == 0xff)
+ if (frame_hdr->cmd_status == 0xff) {
+ if (fusion)
+ megasas_return_mfi_mpt_pthr(instance, cmd,
+ cmd->mpt_pthr_cmd_blocked);
return -ETIME;
+ }
return 0;
}
@@ -650,6 +683,10 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
/* driver supports HA / Remote LUN over Fast Path interface */
init_frame->driver_operations.mfi_capabilities.support_fp_remote_lun
= 1;
+ init_frame->driver_operations.mfi_capabilities.support_max_255lds
+ = 1;
+ init_frame->driver_operations.mfi_capabilities.support_ndrive_r1_lb
+ = 1;
/* Convert capability to LE32 */
cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
@@ -709,6 +746,13 @@ fail_get_cmd:
* Issues an internal command (DCMD) to get the FW's controller PD
* list structure. This information is mainly used to find out SYSTEM
* supported by the FW.
+ * dcmd.mbox value setting for MR_DCMD_LD_MAP_GET_INFO
+ * dcmd.mbox.b[0] - number of LDs being sync'd
+ * dcmd.mbox.b[1] - 0 - complete command immediately.
+ * - 1 - pend till config change
+ * dcmd.mbox.b[2] - 0 - supports max 64 lds and uses legacy MR_FW_RAID_MAP
+ * - 1 - supports max MAX_LOGICAL_DRIVES_EXT lds and
+ * uses extended struct MR_FW_RAID_MAP_EXT
*/
static int
megasas_get_ld_map_info(struct megasas_instance *instance)
@@ -716,7 +760,7 @@ megasas_get_ld_map_info(struct megasas_instance *instance)
int ret = 0;
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
- struct MR_FW_RAID_MAP_ALL *ci;
+ void *ci;
dma_addr_t ci_h = 0;
u32 size_map_info;
struct fusion_context *fusion;
@@ -737,10 +781,9 @@ megasas_get_ld_map_info(struct megasas_instance *instance)
dcmd = &cmd->frame->dcmd;
- size_map_info = sizeof(struct MR_FW_RAID_MAP) +
- (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
+ size_map_info = fusion->current_map_sz;
- ci = fusion->ld_map[(instance->map_id & 1)];
+ ci = (void *) fusion->ld_map[(instance->map_id & 1)];
ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
if (!ci) {
@@ -749,9 +792,13 @@ megasas_get_ld_map_info(struct megasas_instance *instance)
return -ENOMEM;
}
- memset(ci, 0, sizeof(*ci));
+ memset(ci, 0, fusion->max_map_sz);
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
-
+#if VD_EXT_DEBUG
+ dev_dbg(&instance->pdev->dev,
+ "%s sending MR_DCMD_LD_MAP_GET_INFO with size %d\n",
+ __func__, cpu_to_le32(size_map_info));
+#endif
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0xFF;
dcmd->sge_count = 1;
@@ -763,14 +810,17 @@ megasas_get_ld_map_info(struct megasas_instance *instance)
dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info);
- if (!megasas_issue_polled(instance, cmd))
- ret = 0;
- else {
- printk(KERN_ERR "megasas: Get LD Map Info Failed\n");
- ret = -1;
- }
+ if (instance->ctrl_context && !instance->mask_interrupts)
+ ret = megasas_issue_blocked_cmd(instance, cmd,
+ MEGASAS_BLOCKED_CMD_TIMEOUT);
+ else
+ ret = megasas_issue_polled(instance, cmd);
- megasas_return_cmd(instance, cmd);
+ if (instance->ctrl_context && cmd->mpt_pthr_cmd_blocked)
+ megasas_return_mfi_mpt_pthr(instance, cmd,
+ cmd->mpt_pthr_cmd_blocked);
+ else
+ megasas_return_cmd(instance, cmd);
return ret;
}
@@ -807,7 +857,7 @@ megasas_sync_map_info(struct megasas_instance *instance)
u32 size_sync_info, num_lds;
struct fusion_context *fusion;
struct MR_LD_TARGET_SYNC *ci = NULL;
- struct MR_FW_RAID_MAP_ALL *map;
+ struct MR_DRV_RAID_MAP_ALL *map;
struct MR_LD_RAID *raid;
struct MR_LD_TARGET_SYNC *ld_sync;
dma_addr_t ci_h = 0;
@@ -828,7 +878,7 @@ megasas_sync_map_info(struct megasas_instance *instance)
return 1;
}
- map = fusion->ld_map[instance->map_id & 1];
+ map = fusion->ld_drv_map[instance->map_id & 1];
num_lds = le32_to_cpu(map->raidMap.ldCount);
@@ -840,7 +890,7 @@ megasas_sync_map_info(struct megasas_instance *instance)
ci = (struct MR_LD_TARGET_SYNC *)
fusion->ld_map[(instance->map_id - 1) & 1];
- memset(ci, 0, sizeof(struct MR_FW_RAID_MAP_ALL));
+ memset(ci, 0, fusion->max_map_sz);
ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1];
@@ -852,8 +902,7 @@ megasas_sync_map_info(struct megasas_instance *instance)
ld_sync->seqNum = raid->seqNum;
}
- size_map_info = sizeof(struct MR_FW_RAID_MAP) +
- (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
+ size_map_info = fusion->current_map_sz;
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0xFF;
@@ -971,7 +1020,7 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
max_cmd = instance->max_fw_cmds;
- fusion->reply_q_depth = ((max_cmd + 1 + 15)/16)*16;
+ fusion->reply_q_depth = 2 * (((max_cmd + 1 + 15)/16)*16);
fusion->request_alloc_sz =
sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *max_cmd;
@@ -988,8 +1037,8 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
fusion->max_sge_in_chain =
MEGASAS_MAX_SZ_CHAIN_FRAME / sizeof(union MPI2_SGE_IO_UNION);
- instance->max_num_sge = fusion->max_sge_in_main_msg +
- fusion->max_sge_in_chain - 2;
+ instance->max_num_sge = rounddown_pow_of_two(
+ fusion->max_sge_in_main_msg + fusion->max_sge_in_chain - 2);
/* Used for pass thru MFI frame (DCMD) */
fusion->chain_offset_mfi_pthru =
@@ -1016,17 +1065,75 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
goto fail_ioc_init;
megasas_display_intel_branding(instance);
+ if (megasas_get_ctrl_info(instance, instance->ctrl_info)) {
+ dev_err(&instance->pdev->dev,
+ "Could not get controller info. Fail from %s %d\n",
+ __func__, __LINE__);
+ goto fail_ioc_init;
+ }
+
+ instance->supportmax256vd =
+ instance->ctrl_info->adapterOperations3.supportMaxExtLDs;
+ /* Below is additional check to address future FW enhancement */
+ if (instance->ctrl_info->max_lds > 64)
+ instance->supportmax256vd = 1;
+ instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
+ * MEGASAS_MAX_DEV_PER_CHANNEL;
+ instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
+ * MEGASAS_MAX_DEV_PER_CHANNEL;
+ if (instance->supportmax256vd) {
+ instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
+ instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
+ } else {
+ instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
+ instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
+ }
+ dev_info(&instance->pdev->dev, "Firmware supports %d VDs %d PDs\n"
+ "Driver supports %d VDs %d PDs\n",
+ instance->fw_supported_vd_count,
+ instance->fw_supported_pd_count,
+ instance->drv_supported_vd_count,
+ instance->drv_supported_pd_count);
instance->flag_ieee = 1;
+ fusion->fast_path_io = 0;
- fusion->map_sz = sizeof(struct MR_FW_RAID_MAP) +
- (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
+ fusion->old_map_sz =
+ sizeof(struct MR_FW_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) *
+ (instance->fw_supported_vd_count - 1));
+ fusion->new_map_sz =
+ sizeof(struct MR_FW_RAID_MAP_EXT);
+ fusion->drv_map_sz =
+ sizeof(struct MR_DRV_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) *
+ (instance->drv_supported_vd_count - 1));
+
+ fusion->drv_map_pages = get_order(fusion->drv_map_sz);
+ for (i = 0; i < 2; i++) {
+ fusion->ld_map[i] = NULL;
+ fusion->ld_drv_map[i] = (void *)__get_free_pages(GFP_KERNEL,
+ fusion->drv_map_pages);
+ if (!fusion->ld_drv_map[i]) {
+ dev_err(&instance->pdev->dev, "Could not allocate "
+ "memory for local map info for %d pages\n",
+ fusion->drv_map_pages);
+ if (i == 1)
+ free_pages((ulong)fusion->ld_drv_map[0],
+ fusion->drv_map_pages);
+ goto fail_ioc_init;
+ }
+ }
+
+ fusion->max_map_sz = max(fusion->old_map_sz, fusion->new_map_sz);
+
+ if (instance->supportmax256vd)
+ fusion->current_map_sz = fusion->new_map_sz;
+ else
+ fusion->current_map_sz = fusion->old_map_sz;
- fusion->fast_path_io = 0;
for (i = 0; i < 2; i++) {
fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev,
- fusion->map_sz,
+ fusion->max_map_sz,
&fusion->ld_map_phys[i],
GFP_KERNEL);
if (!fusion->ld_map[i]) {
@@ -1043,7 +1150,7 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
fail_map_info:
if (i == 1)
- dma_free_coherent(&instance->pdev->dev, fusion->map_sz,
+ dma_free_coherent(&instance->pdev->dev, fusion->max_map_sz,
fusion->ld_map[0], fusion->ld_map_phys[0]);
fail_ioc_init:
megasas_free_cmds_fusion(instance);
@@ -1065,6 +1172,11 @@ megasas_fire_cmd_fusion(struct megasas_instance *instance,
u32 req_desc_hi,
struct megasas_register_set __iomem *regs)
{
+#if defined(writeq) && defined(CONFIG_64BIT)
+ u64 req_data = (((u64)req_desc_hi << 32) | (u32)req_desc_lo);
+
+ writeq(le64_to_cpu(req_data), &(regs)->inbound_low_queue_port);
+#else
unsigned long flags;
spin_lock_irqsave(&instance->hba_lock, flags);
@@ -1072,6 +1184,7 @@ megasas_fire_cmd_fusion(struct megasas_instance *instance,
writel(le32_to_cpu(req_desc_lo), &(regs)->inbound_low_queue_port);
writel(le32_to_cpu(req_desc_hi), &(regs)->inbound_high_queue_port);
spin_unlock_irqrestore(&instance->hba_lock, flags);
+#endif
}
/**
@@ -1224,7 +1337,7 @@ megasas_make_sgl_fusion(struct megasas_instance *instance,
void
megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp,
- struct MR_FW_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
+ struct MR_DRV_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
{
struct MR_LD_RAID *raid;
u32 ld;
@@ -1409,7 +1522,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
struct IO_REQUEST_INFO io_info;
struct fusion_context *fusion;
- struct MR_FW_RAID_MAP_ALL *local_map_ptr;
+ struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
u8 *raidLUN;
device_id = MEGASAS_DEV_INDEX(instance, scp);
@@ -1486,10 +1599,10 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
io_info.isRead = 1;
- local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
+ local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
if ((MR_TargetIdToLdGet(device_id, local_map_ptr) >=
- MAX_LOGICAL_DRIVES) || (!fusion->fast_path_io)) {
+ instance->fw_supported_vd_count) || (!fusion->fast_path_io)) {
io_request->RaidContext.regLockFlags = 0;
fp_possible = 0;
} else {
@@ -1529,10 +1642,11 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
if ((fusion->load_balance_info[device_id].loadBalanceFlag) &&
(io_info.isRead)) {
io_info.devHandle =
- get_updated_dev_handle(
+ get_updated_dev_handle(instance,
&fusion->load_balance_info[device_id],
&io_info);
scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG;
+ cmd->pd_r1_lb = io_info.pd_after_lb;
} else
scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
@@ -1579,7 +1693,7 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
u32 device_id;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
u16 pd_index = 0;
- struct MR_FW_RAID_MAP_ALL *local_map_ptr;
+ struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
struct fusion_context *fusion = instance->ctrl_context;
u8 span, physArm;
u16 devHandle;
@@ -1591,7 +1705,7 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
device_id = MEGASAS_DEV_INDEX(instance, scmd);
pd_index = (scmd->device->channel * MEGASAS_MAX_DEV_PER_CHANNEL)
+scmd->device->id;
- local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
+ local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
@@ -1639,7 +1753,8 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
goto NonFastPath;
ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
- if ((ld >= MAX_LOGICAL_DRIVES) || (!fusion->fast_path_io))
+ if ((ld >= instance->fw_supported_vd_count) ||
+ (!fusion->fast_path_io))
goto NonFastPath;
raid = MR_LdRaidGet(ld, local_map_ptr);
@@ -1864,10 +1979,11 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
struct megasas_cmd *cmd_mfi;
struct megasas_cmd_fusion *cmd_fusion;
u16 smid, num_completed;
- u8 reply_descript_type, arm;
+ u8 reply_descript_type;
u32 status, extStatus, device_id;
union desc_value d_val;
struct LD_LOAD_BALANCE_INFO *lbinfo;
+ int threshold_reply_count = 0;
fusion = instance->ctrl_context;
@@ -1914,10 +2030,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
lbinfo = &fusion->load_balance_info[device_id];
if (cmd_fusion->scmd->SCp.Status &
MEGASAS_LOAD_BALANCE_FLAG) {
- arm = lbinfo->raid1DevHandle[0] ==
- cmd_fusion->io_request->DevHandle ? 0 :
- 1;
- atomic_dec(&lbinfo->scsi_pending_cmds[arm]);
+ atomic_dec(&lbinfo->scsi_pending_cmds[cmd_fusion->pd_r1_lb]);
cmd_fusion->scmd->SCp.Status &=
~MEGASAS_LOAD_BALANCE_FLAG;
}
@@ -1941,10 +2054,19 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
break;
case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST: /*MFI command */
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
+
+ if (!cmd_mfi->mpt_pthr_cmd_blocked) {
+ if (megasas_dbg_lvl == 5)
+ dev_info(&instance->pdev->dev,
+ "freeing mfi/mpt pass-through "
+ "from %s %d\n",
+ __func__, __LINE__);
+ megasas_return_mfi_mpt_pthr(instance, cmd_mfi,
+ cmd_fusion);
+ }
+
megasas_complete_cmd(instance, cmd_mfi, DID_OK);
cmd_fusion->flags = 0;
- megasas_return_cmd_fusion(instance, cmd_fusion);
-
break;
}
@@ -1955,6 +2077,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
desc->Words = ULLONG_MAX;
num_completed++;
+ threshold_reply_count++;
/* Get the next reply descriptor */
if (!fusion->last_reply_idx[MSIxIndex])
@@ -1974,6 +2097,25 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
break;
+ /*
+ * Write to reply post host index register after completing threshold
+ * number of reply counts and still there are more replies in reply queue
+ * pending to be completed
+ */
+ if (threshold_reply_count >= THRESHOLD_REPLY_COUNT) {
+ if ((instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_INVADER) ||
+ (instance->pdev->device ==
+ PCI_DEVICE_ID_LSI_FURY))
+ writel(((MSIxIndex & 0x7) << 24) |
+ fusion->last_reply_idx[MSIxIndex],
+ instance->reply_post_host_index_addr[MSIxIndex/8]);
+ else
+ writel((MSIxIndex << 24) |
+ fusion->last_reply_idx[MSIxIndex],
+ instance->reply_post_host_index_addr[0]);
+ threshold_reply_count = 0;
+ }
}
if (!num_completed)
@@ -2028,7 +2170,7 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp)
{
struct megasas_irq_context *irq_context = devp;
struct megasas_instance *instance = irq_context->instance;
- u32 mfiStatus, fw_state;
+ u32 mfiStatus, fw_state, dma_state;
if (instance->mask_interrupts)
return IRQ_NONE;
@@ -2050,7 +2192,16 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp)
/* If we didn't complete any commands, check for FW fault */
fw_state = instance->instancet->read_fw_status_reg(
instance->reg_set) & MFI_STATE_MASK;
- if (fw_state == MFI_STATE_FAULT) {
+ dma_state = instance->instancet->read_fw_status_reg
+ (instance->reg_set) & MFI_STATE_DMADONE;
+ if (instance->crash_dump_drv_support &&
+ instance->crash_dump_app_support) {
+ /* Start collecting crash, if DMA bit is done */
+ if ((fw_state == MFI_STATE_FAULT) && dma_state)
+ schedule_work(&instance->crash_init);
+ else if (fw_state == MFI_STATE_FAULT)
+ schedule_work(&instance->work_init);
+ } else if (fw_state == MFI_STATE_FAULT) {
printk(KERN_WARNING "megaraid_sas: Iop2SysDoorbellInt"
"for scsi%d\n", instance->host->host_no);
schedule_work(&instance->work_init);
@@ -2075,6 +2226,7 @@ build_mpt_mfi_pass_thru(struct megasas_instance *instance,
struct megasas_cmd_fusion *cmd;
struct fusion_context *fusion;
struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr;
+ u32 opcode;
cmd = megasas_get_cmd_fusion(instance);
if (!cmd)
@@ -2082,9 +2234,20 @@ build_mpt_mfi_pass_thru(struct megasas_instance *instance,
/* Save the smid. To be used for returning the cmd */
mfi_cmd->context.smid = cmd->index;
-
cmd->sync_cmd_idx = mfi_cmd->index;
+ /* Set this only for Blocked commands */
+ opcode = le32_to_cpu(mfi_cmd->frame->dcmd.opcode);
+ if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
+ && (mfi_cmd->frame->dcmd.mbox.b[1] == 1))
+ mfi_cmd->is_wait_event = 1;
+
+ if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
+ mfi_cmd->is_wait_event = 1;
+
+ if (mfi_cmd->is_wait_event)
+ mfi_cmd->mpt_pthr_cmd_blocked = cmd;
+
/*
* For cmds where the flag is set, store the flag and check
* on completion. For cmds with this flag, don't call
@@ -2173,6 +2336,7 @@ megasas_issue_dcmd_fusion(struct megasas_instance *instance,
printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n");
return;
}
+ atomic_set(&cmd->mfi_mpt_pthr, MFI_MPT_ATTACHED);
instance->instancet->fire_cmd(instance, req_desc->u.low,
req_desc->u.high, instance->reg_set);
}
@@ -2203,6 +2367,49 @@ megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs)
}
/**
+ * megasas_alloc_host_crash_buffer - Host buffers for Crash dump collection from Firmware
+ * @instance: Controller's soft instance
+ * return: Number of allocated host crash buffers
+ */
+static void
+megasas_alloc_host_crash_buffer(struct megasas_instance *instance)
+{
+ unsigned int i;
+
+ instance->crash_buf_pages = get_order(CRASH_DMA_BUF_SIZE);
+ for (i = 0; i < MAX_CRASH_DUMP_SIZE; i++) {
+ instance->crash_buf[i] = (void *)__get_free_pages(GFP_KERNEL,
+ instance->crash_buf_pages);
+ if (!instance->crash_buf[i]) {
+ dev_info(&instance->pdev->dev, "Firmware crash dump "
+ "memory allocation failed at index %d\n", i);
+ break;
+ }
+ }
+ instance->drv_buf_alloc = i;
+}
+
+/**
+ * megasas_free_host_crash_buffer - Host buffers for Crash dump collection from Firmware
+ * @instance: Controller's soft instance
+ */
+void
+megasas_free_host_crash_buffer(struct megasas_instance *instance)
+{
+ unsigned int i
+;
+ for (i = 0; i < instance->drv_buf_alloc; i++) {
+ if (instance->crash_buf[i])
+ free_pages((ulong)instance->crash_buf[i],
+ instance->crash_buf_pages);
+ }
+ instance->drv_buf_index = 0;
+ instance->drv_buf_alloc = 0;
+ instance->fw_crash_state = UNAVAILABLE;
+ instance->fw_crash_buffer_size = 0;
+}
+
+/**
* megasas_adp_reset_fusion - For controller reset
* @regs: MFI register set
*/
@@ -2345,6 +2552,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
struct megasas_cmd *cmd_mfi;
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
u32 host_diag, abs_state, status_reg, reset_adapter;
+ u32 io_timeout_in_crash_mode = 0;
instance = (struct megasas_instance *)shost->hostdata;
fusion = instance->ctrl_context;
@@ -2355,8 +2563,45 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
printk(KERN_WARNING "megaraid_sas: Hardware critical error, "
"returning FAILED for scsi%d.\n",
instance->host->host_no);
+ mutex_unlock(&instance->reset_mutex);
return FAILED;
}
+ status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
+ abs_state = status_reg & MFI_STATE_MASK;
+
+ /* IO timeout detected, forcibly put FW in FAULT state */
+ if (abs_state != MFI_STATE_FAULT && instance->crash_dump_buf &&
+ instance->crash_dump_app_support && iotimeout) {
+ dev_info(&instance->pdev->dev, "IO timeout is detected, "
+ "forcibly FAULT Firmware\n");
+ instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
+ status_reg = readl(&instance->reg_set->doorbell);
+ writel(status_reg | MFI_STATE_FORCE_OCR,
+ &instance->reg_set->doorbell);
+ readl(&instance->reg_set->doorbell);
+ mutex_unlock(&instance->reset_mutex);
+ do {
+ ssleep(3);
+ io_timeout_in_crash_mode++;
+ dev_dbg(&instance->pdev->dev, "waiting for [%d] "
+ "seconds for crash dump collection and OCR "
+ "to be done\n", (io_timeout_in_crash_mode * 3));
+ } while ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) &&
+ (io_timeout_in_crash_mode < 80));
+
+ if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) {
+ dev_info(&instance->pdev->dev, "OCR done for IO "
+ "timeout case\n");
+ retval = SUCCESS;
+ } else {
+ dev_info(&instance->pdev->dev, "Controller is not "
+ "operational after 240 seconds wait for IO "
+ "timeout case in FW crash dump mode\n do "
+ "OCR/kill adapter\n");
+ retval = megasas_reset_fusion(shost, 0);
+ }
+ return retval;
+ }
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
del_timer_sync(&instance->sriov_heartbeat_timer);
@@ -2563,10 +2808,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
cmd_list[cmd_fusion->sync_cmd_idx];
if (cmd_mfi->frame->dcmd.opcode ==
cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO)) {
- megasas_return_cmd(instance,
- cmd_mfi);
- megasas_return_cmd_fusion(
- instance, cmd_fusion);
+ megasas_return_mfi_mpt_pthr(instance, cmd_mfi, cmd_fusion);
} else {
req_desc =
megasas_get_request_descriptor(
@@ -2603,7 +2845,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
/* Reset load balance info */
memset(fusion->load_balance_info, 0,
sizeof(struct LD_LOAD_BALANCE_INFO)
- *MAX_LOGICAL_DRIVES);
+ *MAX_LOGICAL_DRIVES_EXT);
if (!megasas_get_map_info(instance))
megasas_sync_map_info(instance);
@@ -2623,6 +2865,15 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
printk(KERN_WARNING "megaraid_sas: Reset "
"successful for scsi%d.\n",
instance->host->host_no);
+
+ if (instance->crash_dump_drv_support) {
+ if (instance->crash_dump_app_support)
+ megasas_set_crash_dump_params(instance,
+ MR_CRASH_BUF_TURN_ON);
+ else
+ megasas_set_crash_dump_params(instance,
+ MR_CRASH_BUF_TURN_OFF);
+ }
retval = SUCCESS;
goto out;
}
@@ -2651,6 +2902,74 @@ out:
return retval;
}
+/* Fusion Crash dump collection work queue */
+void megasas_fusion_crash_dump_wq(struct work_struct *work)
+{
+ struct megasas_instance *instance =
+ container_of(work, struct megasas_instance, crash_init);
+ u32 status_reg;
+ u8 partial_copy = 0;
+
+
+ status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
+
+ /*
+ * Allocate host crash buffers to copy data from 1 MB DMA crash buffer
+ * to host crash buffers
+ */
+ if (instance->drv_buf_index == 0) {
+ /* Buffer is already allocated for old Crash dump.
+ * Do OCR and do not wait for crash dump collection
+ */
+ if (instance->drv_buf_alloc) {
+ dev_info(&instance->pdev->dev, "earlier crash dump is "
+ "not yet copied by application, ignoring this "
+ "crash dump and initiating OCR\n");
+ status_reg |= MFI_STATE_CRASH_DUMP_DONE;
+ writel(status_reg,
+ &instance->reg_set->outbound_scratch_pad);
+ readl(&instance->reg_set->outbound_scratch_pad);
+ return;
+ }
+ megasas_alloc_host_crash_buffer(instance);
+ dev_info(&instance->pdev->dev, "Number of host crash buffers "
+ "allocated: %d\n", instance->drv_buf_alloc);
+ }
+
+ /*
+ * Driver has allocated max buffers, which can be allocated
+ * and FW has more crash dump data, then driver will
+ * ignore the data.
+ */
+ if (instance->drv_buf_index >= (instance->drv_buf_alloc)) {
+ dev_info(&instance->pdev->dev, "Driver is done copying "
+ "the buffer: %d\n", instance->drv_buf_alloc);
+ status_reg |= MFI_STATE_CRASH_DUMP_DONE;
+ partial_copy = 1;
+ } else {
+ memcpy(instance->crash_buf[instance->drv_buf_index],
+ instance->crash_dump_buf, CRASH_DMA_BUF_SIZE);
+ instance->drv_buf_index++;
+ status_reg &= ~MFI_STATE_DMADONE;
+ }
+
+ if (status_reg & MFI_STATE_CRASH_DUMP_DONE) {
+ dev_info(&instance->pdev->dev, "Crash Dump is available,number "
+ "of copied buffers: %d\n", instance->drv_buf_index);
+ instance->fw_crash_buffer_size = instance->drv_buf_index;
+ instance->fw_crash_state = AVAILABLE;
+ instance->drv_buf_index = 0;
+ writel(status_reg, &instance->reg_set->outbound_scratch_pad);
+ readl(&instance->reg_set->outbound_scratch_pad);
+ if (!partial_copy)
+ megasas_reset_fusion(instance->host, 0);
+ } else {
+ writel(status_reg, &instance->reg_set->outbound_scratch_pad);
+ readl(&instance->reg_set->outbound_scratch_pad);
+ }
+}
+
+
/* Fusion OCR work queue */
void megasas_fusion_ocr_wq(struct work_struct *work)
{