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-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h25
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c118
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c66
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.h12
4 files changed, 208 insertions, 13 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 8c0f74a2740a..a2df9827e932 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -142,6 +142,7 @@
* CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver
* HOTPLUG : Resume from Hotplug
* MFI_STOP_ADP : Send signal to FW to stop processing
+ * MFI_ADP_TRIGGER_SNAP_DUMP: Inform firmware to initiate snap dump
*/
#define WRITE_SEQUENCE_OFFSET (0x0000000FC) /* I20 */
#define HOST_DIAGNOSTIC_OFFSET (0x000000F8) /* I20 */
@@ -158,6 +159,7 @@
#define MFI_RESET_FLAGS MFI_INIT_READY| \
MFI_INIT_MFIMODE| \
MFI_INIT_ABORT
+#define MFI_ADP_TRIGGER_SNAP_DUMP 0x00000100
#define MPI2_IOCINIT_MSGFLAG_RDPQ_ARRAY_MODE (0x01)
/*
@@ -860,8 +862,22 @@ struct megasas_ctrl_prop {
u32 reserved:18;
#endif
} OnOffProperties;
- u8 autoSnapVDSpace;
- u8 viewSpace;
+
+ union {
+ u8 autoSnapVDSpace;
+ u8 viewSpace;
+ struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u16 reserved2:11;
+ u16 enable_snap_dump:1;
+ u16 reserved1:4;
+#else
+ u16 reserved1:4;
+ u16 enable_snap_dump:1;
+ u16 reserved2:11;
+#endif
+ } on_off_properties2;
+ };
__le16 spinDownTime;
u8 reserved[24];
} __packed;
@@ -2185,6 +2201,9 @@ struct megasas_instance {
struct MR_LD_TARGETID_LIST *ld_targetid_list_buf;
dma_addr_t ld_targetid_list_buf_h;
+ struct MR_SNAPDUMP_PROPERTIES *snapdump_prop;
+ dma_addr_t snapdump_prop_h;
+
void *crash_buf[MAX_CRASH_DUMP_SIZE];
unsigned int fw_crash_buffer_size;
unsigned int fw_crash_state;
@@ -2316,6 +2335,7 @@ struct megasas_instance {
bool support_nvme_passthru;
u8 task_abort_tmo;
u8 max_reset_tmo;
+ u8 snapdump_wait_time;
};
struct MR_LD_VF_MAP {
u32 size;
@@ -2541,6 +2561,7 @@ void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
bool is_target_prop);
int megasas_get_target_prop(struct megasas_instance *instance,
struct scsi_device *sdev);
+void megasas_get_snapdump_properties(struct megasas_instance *instance);
int megasas_set_crash_dump_params(struct megasas_instance *instance,
u8 crash_buf_state);
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 4dc29e055461..3ddf71b8c38d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4661,6 +4661,87 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance)
fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
}
+/*
+ * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES
+ * dcmd.hdr.length - number of bytes to read
+ * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES
+ * Desc: Fill in snapdump properties
+ * Status: MFI_STAT_OK- Command successful
+ */
+void megasas_get_snapdump_properties(struct megasas_instance *instance)
+{
+ int ret = 0;
+ struct megasas_cmd *cmd;
+ struct megasas_dcmd_frame *dcmd;
+ struct MR_SNAPDUMP_PROPERTIES *ci;
+ dma_addr_t ci_h = 0;
+
+ ci = instance->snapdump_prop;
+ ci_h = instance->snapdump_prop_h;
+
+ if (!ci)
+ return;
+
+ cmd = megasas_get_cmd(instance);
+
+ if (!cmd) {
+ dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n");
+ return;
+ }
+
+ dcmd = &cmd->frame->dcmd;
+
+ memset(ci, 0, sizeof(*ci));
+ memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
+
+ dcmd->cmd = MFI_CMD_DCMD;
+ dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
+ dcmd->sge_count = 1;
+ dcmd->flags = MFI_FRAME_DIR_READ;
+ dcmd->timeout = 0;
+ dcmd->pad_0 = 0;
+ dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));
+ dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);
+
+ megasas_set_dma_settings(instance, dcmd, ci_h,
+ sizeof(struct MR_SNAPDUMP_PROPERTIES));
+
+ if (!instance->mask_interrupts) {
+ ret = megasas_issue_blocked_cmd(instance, cmd,
+ MFI_IO_TIMEOUT_SECS);
+ } else {
+ ret = megasas_issue_polled(instance, cmd);
+ cmd->flags |= DRV_DCMD_SKIP_REFIRE;
+ }
+
+ switch (ret) {
+ case DCMD_SUCCESS:
+ instance->snapdump_wait_time =
+ min_t(u8, ci->trigger_min_num_sec_before_ocr,
+ MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);
+ break;
+
+ case DCMD_TIMEOUT:
+ switch (dcmd_timeout_ocr_possible(instance)) {
+ case INITIATE_OCR:
+ cmd->flags |= DRV_DCMD_SKIP_REFIRE;
+ megasas_reset_fusion(instance->host,
+ MFI_IO_TIMEOUT_OCR);
+ break;
+ case KILL_ADAPTER:
+ megaraid_sas_kill_hba(instance);
+ break;
+ case IGNORE_TIMEOUT:
+ dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
+ __func__, __LINE__);
+ break;
+ }
+ }
+
+ if (ret != DCMD_TIMEOUT)
+ megasas_return_cmd(instance, cmd);
+}
+
/**
* megasas_get_controller_info - Returns FW's controller structure
* @instance: Adapter soft state
@@ -4720,6 +4801,7 @@ megasas_get_ctrl_info(struct megasas_instance *instance)
* CPU endianness format.
*/
le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
+ le16_to_cpus((u16 *)&ci->properties.on_off_properties2);
le32_to_cpus((u32 *)&ci->adapterOperations2);
le32_to_cpus((u32 *)&ci->adapterOperations3);
le16_to_cpus((u16 *)&ci->adapter_operations4);
@@ -4741,6 +4823,11 @@ megasas_get_ctrl_info(struct megasas_instance *instance)
/*Check whether controller is iMR or MR */
instance->is_imr = (ci->memory_size ? 0 : 1);
+
+ instance->snapdump_wait_time =
+ (ci->properties.on_off_properties2.enable_snap_dump ?
+ MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);
+
dev_info(&instance->pdev->dev,
"controller type\t: %s(%dMB)\n",
instance->is_imr ? "iMR" : "MR",
@@ -5539,6 +5626,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
instance->crash_dump_buf = NULL;
}
+ if (instance->snapdump_wait_time) {
+ megasas_get_snapdump_properties(instance);
+ dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",
+ instance->snapdump_wait_time);
+ }
dev_info(&instance->pdev->dev,
"pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
@@ -5553,7 +5645,6 @@ static int megasas_init_fw(struct megasas_instance *instance)
dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
instance->use_seqnum_jbod_fp ? "yes" : "no");
-
instance->max_sectors_per_req = instance->max_num_sge *
SGE_BUFFER_SIZE / 512;
if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
@@ -6257,6 +6348,14 @@ int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
"Failed to allocate PD list buffer\n");
return -ENOMEM;
}
+
+ instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,
+ sizeof(struct MR_SNAPDUMP_PROPERTIES),
+ &instance->snapdump_prop_h, GFP_KERNEL);
+
+ if (!instance->snapdump_prop)
+ dev_err(&pdev->dev,
+ "Failed to allocate snapdump properties buffer\n");
}
instance->pd_list_buf =
@@ -6400,6 +6499,12 @@ void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
instance->crash_dump_buf,
instance->crash_dump_h);
+
+ if (instance->snapdump_prop)
+ dma_free_coherent(&pdev->dev,
+ sizeof(struct MR_SNAPDUMP_PROPERTIES),
+ instance->snapdump_prop,
+ instance->snapdump_prop_h);
}
/*
@@ -7763,8 +7868,15 @@ megasas_aen_polling(struct work_struct *work)
break;
case MR_EVT_CTRL_PROP_CHANGED:
- dcmd_ret = megasas_get_ctrl_info(instance);
- break;
+ dcmd_ret = megasas_get_ctrl_info(instance);
+ if (dcmd_ret == DCMD_SUCCESS &&
+ instance->snapdump_wait_time) {
+ megasas_get_snapdump_properties(instance);
+ dev_info(&instance->pdev->dev,
+ "Snap dump wait time\t: %d\n",
+ instance->snapdump_wait_time);
+ }
+ break;
default:
doscan = 0;
break;
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 9ca4a52164bd..2868b71add2d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3884,14 +3884,57 @@ megasas_check_reset_fusion(struct megasas_instance *instance,
return 0;
}
+/**
+ * megasas_trigger_snap_dump - Trigger snap dump in FW
+ * @instance: Soft instance of adapter
+ */
+static inline void megasas_trigger_snap_dump(struct megasas_instance *instance)
+{
+ int j;
+ u32 fw_state;
+
+ if (!instance->disableOnlineCtrlReset) {
+ dev_info(&instance->pdev->dev, "Trigger snap dump\n");
+ writel(MFI_ADP_TRIGGER_SNAP_DUMP,
+ &instance->reg_set->doorbell);
+ readl(&instance->reg_set->doorbell);
+ }
+
+ for (j = 0; j < instance->snapdump_wait_time; j++) {
+ fw_state = instance->instancet->read_fw_status_reg(
+ instance->reg_set) & MFI_STATE_MASK;
+ if (fw_state == MFI_STATE_FAULT) {
+ dev_err(&instance->pdev->dev,
+ "Found FW in FAULT state, after snap dump trigger\n");
+ return;
+ }
+ msleep(1000);
+ }
+}
+
/* This function waits for outstanding commands on fusion to complete */
int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
int reason, int *convert)
{
int i, outstanding, retval = 0, hb_seconds_missed = 0;
u32 fw_state;
+ u32 waittime_for_io_completion;
- for (i = 0; i < resetwaittime; i++) {
+ waittime_for_io_completion =
+ min_t(u32, resetwaittime,
+ (resetwaittime - instance->snapdump_wait_time));
+
+ if (reason == MFI_IO_TIMEOUT_OCR) {
+ dev_info(&instance->pdev->dev,
+ "MFI command is timed out\n");
+ megasas_complete_cmd_dpc_fusion((unsigned long)instance);
+ if (instance->snapdump_wait_time)
+ megasas_trigger_snap_dump(instance);
+ retval = 1;
+ goto out;
+ }
+
+ for (i = 0; i < waittime_for_io_completion; i++) {
/* Check if firmware is in fault state */
fw_state = instance->instancet->read_fw_status_reg(
instance->reg_set) & MFI_STATE_MASK;
@@ -3912,13 +3955,6 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
goto out;
}
- if (reason == MFI_IO_TIMEOUT_OCR) {
- dev_info(&instance->pdev->dev,
- "MFI IO is timed out, initiating OCR\n");
- megasas_complete_cmd_dpc_fusion((unsigned long)instance);
- retval = 1;
- goto out;
- }
/* If SR-IOV VF mode & heartbeat timeout, don't wait */
if (instance->requestorId && !reason) {
@@ -3963,6 +3999,12 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
msleep(1000);
}
+ if (instance->snapdump_wait_time) {
+ megasas_trigger_snap_dump(instance);
+ retval = 1;
+ goto out;
+ }
+
if (atomic_read(&instance->fw_outstanding)) {
dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
"will reset adapter scsi%d.\n",
@@ -3970,6 +4012,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
*convert = 1;
retval = 1;
}
+
out:
return retval;
}
@@ -4783,6 +4826,13 @@ transition_to_ready:
megasas_set_crash_dump_params(instance,
MR_CRASH_BUF_TURN_OFF);
+ if (instance->snapdump_wait_time) {
+ megasas_get_snapdump_properties(instance);
+ dev_info(&instance->pdev->dev,
+ "Snap dump wait time\t: %d\n",
+ instance->snapdump_wait_time);
+ }
+
retval = SUCCESS;
/* Adapter reset completed successfully */
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index 8e5ebee6517f..14d8e409832c 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -725,6 +725,7 @@ struct MPI2_IOC_INIT_REQUEST {
#define MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC 0x010e8485 /* SR-IOV HB alloc*/
#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111 0x03200200
#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS 0x03150200
+#define MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 0x01200100
struct MR_DEV_HANDLE_INFO {
__le16 curDevHdl;
@@ -1063,6 +1064,9 @@ struct MR_FW_RAID_MAP_DYNAMIC {
#define MPI26_IEEE_SGE_FLAGS_NSF_NVME_PRP (0x08)
#define MPI26_IEEE_SGE_FLAGS_NSF_NVME_SGL (0x10)
+#define MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME 15
+#define MEGASAS_MAX_SNAP_DUMP_WAIT_TIME 60
+
struct megasas_register_set;
struct megasas_instance;
@@ -1350,6 +1354,14 @@ enum CMD_RET_VALUES {
RETURN_CMD = 3,
};
+struct MR_SNAPDUMP_PROPERTIES {
+ u8 offload_num;
+ u8 max_num_supported;
+ u8 cur_num_supported;
+ u8 trigger_min_num_sec_before_ocr;
+ u8 reserved[12];
+};
+
void megasas_free_cmds_fusion(struct megasas_instance *instance);
int megasas_ioc_init_fusion(struct megasas_instance *instance);
u8 megasas_get_map_info(struct megasas_instance *instance);
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