mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
scsi: megaraid_sas: Enable or Disable Fast path based on the PCI Threshold Bandwidth
Large SEQ IO workload should sent as non fast path commands Signed-off-by: Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
parent
9581ebebbe
commit
3e5eadb1a8
5 changed files with 74 additions and 7 deletions
|
@ -1429,6 +1429,8 @@ enum FW_BOOT_CONTEXT {
|
|||
#define MFI_1068_FW_HANDSHAKE_OFFSET 0x64
|
||||
#define MFI_1068_FW_READY 0xDDDD0000
|
||||
|
||||
#define MEGASAS_RAID1_FAST_PATH_STATUS_CHECK_INTERVAL HZ
|
||||
|
||||
#define MR_MAX_REPLY_QUEUES_OFFSET 0X0000001F
|
||||
#define MR_MAX_REPLY_QUEUES_EXT_OFFSET 0X003FC000
|
||||
#define MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT 14
|
||||
|
@ -2101,6 +2103,10 @@ struct megasas_instance {
|
|||
atomic_t ldio_outstanding;
|
||||
atomic_t fw_reset_no_pci_access;
|
||||
|
||||
atomic64_t bytes_wrote; /* used for raid1 fast path enable or disable */
|
||||
atomic_t r1_write_fp_capable;
|
||||
|
||||
|
||||
struct megasas_instance_template *instancet;
|
||||
struct tasklet_struct isr_tasklet;
|
||||
struct work_struct work_init;
|
||||
|
@ -2142,6 +2148,7 @@ struct megasas_instance {
|
|||
long reset_flags;
|
||||
struct mutex reset_mutex;
|
||||
struct timer_list sriov_heartbeat_timer;
|
||||
struct timer_list r1_fp_hold_timer;
|
||||
char skip_heartbeat_timer_del;
|
||||
u8 requestorId;
|
||||
char PlasmaFW111;
|
||||
|
@ -2158,6 +2165,7 @@ struct megasas_instance {
|
|||
bool is_ventura;
|
||||
bool msix_combined;
|
||||
u16 max_raid_mapsize;
|
||||
u64 pci_threshold_bandwidth; /* used to control the fp writes */
|
||||
};
|
||||
struct MR_LD_VF_MAP {
|
||||
u32 size;
|
||||
|
|
|
@ -1940,6 +1940,9 @@ void megaraid_sas_kill_hba(struct megasas_instance *instance)
|
|||
}
|
||||
/* Complete outstanding ioctls when adapter is killed */
|
||||
megasas_complete_outstanding_ioctls(instance);
|
||||
if (instance->is_ventura)
|
||||
del_timer_sync(&instance->r1_fp_hold_timer);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -2438,6 +2441,24 @@ void megasas_sriov_heartbeat_handler(unsigned long instance_addr)
|
|||
}
|
||||
}
|
||||
|
||||
/*Handler for disabling/enabling raid 1 fast paths*/
|
||||
void megasas_change_r1_fp_status(unsigned long instance_addr)
|
||||
{
|
||||
struct megasas_instance *instance =
|
||||
(struct megasas_instance *)instance_addr;
|
||||
if (atomic64_read(&instance->bytes_wrote) >=
|
||||
instance->pci_threshold_bandwidth) {
|
||||
|
||||
atomic64_set(&instance->bytes_wrote, 0);
|
||||
atomic_set(&instance->r1_write_fp_capable, 0);
|
||||
} else {
|
||||
atomic64_set(&instance->bytes_wrote, 0);
|
||||
atomic_set(&instance->r1_write_fp_capable, 1);
|
||||
}
|
||||
mod_timer(&instance->r1_fp_hold_timer,
|
||||
jiffies + MEGASAS_RAID1_FAST_PATH_STATUS_CHECK_INTERVAL);
|
||||
}
|
||||
|
||||
/**
|
||||
* megasas_wait_for_outstanding - Wait for all outstanding cmds
|
||||
* @instance: Adapter soft state
|
||||
|
@ -5362,6 +5383,17 @@ static int megasas_init_fw(struct megasas_instance *instance)
|
|||
instance->skip_heartbeat_timer_del = 1;
|
||||
}
|
||||
|
||||
if (instance->is_ventura) {
|
||||
atomic64_set(&instance->bytes_wrote, 0);
|
||||
atomic_set(&instance->r1_write_fp_capable, 1);
|
||||
megasas_start_timer(instance,
|
||||
&instance->r1_fp_hold_timer,
|
||||
megasas_change_r1_fp_status,
|
||||
MEGASAS_RAID1_FAST_PATH_STATUS_CHECK_INTERVAL);
|
||||
dev_info(&instance->pdev->dev, "starting the raid 1 fp timer with interval %d\n",
|
||||
MEGASAS_RAID1_FAST_PATH_STATUS_CHECK_INTERVAL);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
fail_get_ld_pd_list:
|
||||
|
@ -6152,6 +6184,9 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state)
|
|||
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
||||
del_timer_sync(&instance->sriov_heartbeat_timer);
|
||||
|
||||
if (instance->is_ventura)
|
||||
del_timer_sync(&instance->r1_fp_hold_timer);
|
||||
|
||||
megasas_flush_cache(instance);
|
||||
megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
|
||||
|
||||
|
@ -6278,6 +6313,16 @@ megasas_resume(struct pci_dev *pdev)
|
|||
megasas_setup_jbod_map(instance);
|
||||
instance->unload = 0;
|
||||
|
||||
if (instance->is_ventura) {
|
||||
atomic64_set(&instance->bytes_wrote, 0);
|
||||
atomic_set(&instance->r1_write_fp_capable, 1);
|
||||
megasas_start_timer(instance,
|
||||
&instance->r1_fp_hold_timer,
|
||||
megasas_change_r1_fp_status,
|
||||
MEGASAS_RAID1_FAST_PATH_STATUS_CHECK_INTERVAL);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Initiate AEN (Asynchronous Event Notification)
|
||||
*/
|
||||
|
@ -6366,6 +6411,9 @@ static void megasas_detach_one(struct pci_dev *pdev)
|
|||
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
||||
del_timer_sync(&instance->sriov_heartbeat_timer);
|
||||
|
||||
if (instance->is_ventura)
|
||||
del_timer_sync(&instance->r1_fp_hold_timer);
|
||||
|
||||
if (instance->fw_crash_state != UNAVAILABLE)
|
||||
megasas_free_host_crash_buffer(instance);
|
||||
scsi_remove_host(instance->host);
|
||||
|
|
|
@ -197,6 +197,9 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
|
|||
|
||||
if (instance->max_raid_mapsize) {
|
||||
fw_map_dyn = fusion->ld_map[(instance->map_id & 1)];
|
||||
if (fw_map_dyn->pci_threshold_bandwidth)
|
||||
instance->pci_threshold_bandwidth =
|
||||
le64_to_cpu(fw_map_dyn->pci_threshold_bandwidth);
|
||||
#if VD_EXT_DEBUG
|
||||
dev_dbg(&instance->pdev->dev, "raidMapSize 0x%x fw_map_dyn->descTableOffset 0x%x\n",
|
||||
le32_to_cpu(fw_map_dyn->raid_map_size),
|
||||
|
@ -204,6 +207,8 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
|
|||
dev_dbg(&instance->pdev->dev, "descTableSize 0x%x descTableNumElements 0x%x\n",
|
||||
le32_to_cpu(fw_map_dyn->desc_table_size),
|
||||
le32_to_cpu(fw_map_dyn->desc_table_num_elements));
|
||||
dev_dbg(&instance->pdev->dev, "PCIThreasholdBandwidth %llu\n",
|
||||
instance->pci_threshold_bandwidth);
|
||||
dev_dbg(&instance->pdev->dev, "drv map %p ldCount %d\n",
|
||||
drv_map, fw_map_dyn->ld_count);
|
||||
#endif
|
||||
|
@ -434,6 +439,8 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
|
|||
sizeof(struct MR_DEV_HANDLE_INFO) *
|
||||
MAX_RAIDMAP_PHYSICAL_DEVICES);
|
||||
}
|
||||
if (instance->is_ventura && !instance->pci_threshold_bandwidth)
|
||||
instance->pci_threshold_bandwidth = ULLONG_MAX;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
@ -95,6 +95,7 @@ extern unsigned int resetwaittime;
|
|||
extern unsigned int dual_qdepth_disable;
|
||||
static void megasas_free_rdpq_fusion(struct megasas_instance *instance);
|
||||
static void megasas_free_reply_fusion(struct megasas_instance *instance);
|
||||
void megasas_change_r1_fp_status(unsigned long instance_addr);
|
||||
|
||||
|
||||
|
||||
|
@ -2628,8 +2629,9 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
|
|||
* to get new command
|
||||
*/
|
||||
if (cmd->is_raid_1_fp_write &&
|
||||
atomic_inc_return(&instance->fw_outstanding) >
|
||||
(instance->host->can_queue)) {
|
||||
(atomic_inc_return(&instance->fw_outstanding) >
|
||||
(instance->host->can_queue) ||
|
||||
(!atomic_read(&instance->r1_write_fp_capable)))) {
|
||||
megasas_fpio_to_ldio(instance, cmd, cmd->scmd);
|
||||
atomic_dec(&instance->fw_outstanding);
|
||||
} else if (cmd->is_raid_1_fp_write) {
|
||||
|
@ -2638,17 +2640,19 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
|
|||
megasas_prepare_secondRaid1_IO(instance, cmd, r1_cmd);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Issue the command to the FW
|
||||
*/
|
||||
if (scmd->sc_data_direction == PCI_DMA_TODEVICE && instance->is_ventura)
|
||||
atomic64_add(scsi_bufflen(scmd), &instance->bytes_wrote);
|
||||
|
||||
megasas_fire_cmd_fusion(instance, req_desc, instance->is_ventura);
|
||||
|
||||
if (r1_cmd)
|
||||
if (r1_cmd) {
|
||||
atomic64_add(scsi_bufflen(scmd), &instance->bytes_wrote);
|
||||
megasas_fire_cmd_fusion(instance, r1_cmd->request_desc,
|
||||
instance->is_ventura);
|
||||
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -977,7 +977,7 @@ struct MR_FW_RAID_MAP_DYNAMIC {
|
|||
u32 desc_table_size; /* Total Size of desc table */
|
||||
/* Total Number of elements in the desc table */
|
||||
u32 desc_table_num_elements;
|
||||
u64 reserved1;
|
||||
u64 pci_threshold_bandwidth;
|
||||
u32 reserved2[3]; /*future use */
|
||||
/* timeout value used by driver in FP IOs */
|
||||
u8 fp_pd_io_timeout_sec;
|
||||
|
|
Loading…
Reference in a new issue