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megaraid_sas: add support for secure JBOD

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This patch adds support for Secure Encrypting Drives (SED) in JBOD mode:

1) If the firmware supports SED JBOD, all non read/write commands to JBODs
   will be sent via firmware path, and read/write commands to JBODs will
   be sent via fastpath.
2) If the firmware does not support SED JBOD, driver will fall back to the
   old design, i.e. send all JBOD I/O via fastpath.

Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sumit.Saxena@avagotech.com 2015-01-05 20:06:03 +05:30 committed by Christoph Hellwig
parent 200aed582d
commit 7497cde883
3 changed files with 107 additions and 51 deletions
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57
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -969,7 +969,20 @@ struct megasas_ctrl_info {
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
u32 reserved:25;
u32 reserved:12;
u32 discardCacheDuringLDDelete:1;
u32 supportSecurityonJBOD:1;
u32 supportCacheBypassModes:1;
u32 supportDisableSESMonitoring:1;
u32 supportForceFlash:1;
u32 supportNVDRAM:1;
u32 supportDrvActivityLEDSetting:1;
u32 supportAllowedOpsforDrvRemoval:1;
u32 supportHOQRebuild:1;
u32 supportForceTo512e:1;
u32 supportNVCacheErase:1;
u32 supportDebugQueue:1;
u32 supportSwZone:1;
u32 supportCrashDump:1;
u32 supportMaxExtLDs:1;
u32 supportT10RebuildAssist:1;
@ -981,9 +994,22 @@ struct megasas_ctrl_info {
u32 supportThermalPollInterval:1;
u32 supportDisableImmediateIO:1;
u32 supportT10RebuildAssist:1;
u32 supportMaxExtLDs:1;
u32 supportCrashDump:1;
u32 reserved:25;
u32 supportMaxExtLDs:1;
u32 supportCrashDump:1;
u32 supportSwZone:1;
u32 supportDebugQueue:1;
u32 supportNVCacheErase:1;
u32 supportForceTo512e:1;
u32 supportHOQRebuild:1;
u32 supportAllowedOpsforDrvRemoval:1;
u32 supportDrvActivityLEDSetting:1;
u32 supportNVDRAM:1;
u32 supportForceFlash:1;
u32 supportDisableSESMonitoring:1;
u32 supportCacheBypassModes:1;
u32 supportSecurityonJBOD:1;
u32 discardCacheDuringLDDelete:1;
u32 reserved:12;
#endif
} adapterOperations3;
@ -1022,6 +1048,13 @@ enum MR_MFI_MPT_PTHR_FLAGS {
MFI_MPT_ATTACHED = 2,
};
enum MR_SCSI_CMD_TYPE {
READ_WRITE_LDIO = 0,
NON_READ_WRITE_LDIO = 1,
READ_WRITE_SYSPDIO = 2,
NON_READ_WRITE_SYSPDIO = 3,
};
/* Frame Type */
#define IO_FRAME 0
#define PTHRU_FRAME 1
@ -1194,19 +1227,23 @@ union megasas_sgl_frame {
typedef union _MFI_CAPABILITIES {
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
u32 reserved:27;
u32 reserved:25;
u32 security_protocol_cmds_fw:1;
u32 support_core_affinity:1;
u32 support_ndrive_r1_lb:1;
u32 support_max_255lds:1;
u32 reserved1:1;
u32 support_fastpath_wb:1;
u32 support_additional_msix:1;
u32 support_fp_remote_lun:1;
#else
u32 support_fp_remote_lun:1;
u32 support_additional_msix:1;
u32 reserved1:1;
u32 support_fastpath_wb:1;
u32 support_max_255lds:1;
u32 support_ndrive_r1_lb:1;
u32 reserved:27;
u32 support_core_affinity:1;
u32 security_protocol_cmds_fw:1;
u32 reserved:25;
#endif
} mfi_capabilities;
u32 reg;
@ -1638,13 +1675,14 @@ struct megasas_instance {
u32 crash_dump_fw_support;
u32 crash_dump_drv_support;
u32 crash_dump_app_support;
u32 secure_jbod_support;
spinlock_t crashdump_lock;
struct megasas_register_set __iomem *reg_set;
u32 *reply_post_host_index_addr[MR_MAX_MSIX_REG_ARRAY];
struct megasas_pd_list pd_list[MEGASAS_MAX_PD];
struct megasas_pd_list local_pd_list[MEGASAS_MAX_PD];
u8 ld_ids[MEGASAS_MAX_LD_IDS];
u8 ld_ids[MEGASAS_MAX_LD_IDS];
s8 init_id;
u16 max_num_sge;
@ -1946,5 +1984,6 @@ void __megasas_return_cmd(struct megasas_instance *instance,
void megasas_return_mfi_mpt_pthr(struct megasas_instance *instance,
struct megasas_cmd *cmd_mfi, struct megasas_cmd_fusion *cmd_fusion);
int megasas_cmd_type(struct scsi_cmnd *cmd);
#endif /*LSI_MEGARAID_SAS_H */

28
drivers/scsi/megaraid/megaraid_sas_base.c
View File

@ -1417,16 +1417,15 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
}
/**
* megasas_is_ldio - Checks if the cmd is for logical drive
* megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
* and whether it's RW or non RW
* @scmd: SCSI command
*
* Called by megasas_queue_command to find out if the command to be queued
* is a logical drive command
*/
inline int megasas_is_ldio(struct scsi_cmnd *cmd)
inline int megasas_cmd_type(struct scsi_cmnd *cmd)
{
if (!MEGASAS_IS_LOGICAL(cmd))
return 0;
int ret;
switch (cmd->cmnd[0]) {
case READ_10:
case WRITE_10:
@ -1436,10 +1435,14 @@ inline int megasas_is_ldio(struct scsi_cmnd *cmd)
case WRITE_6:
case READ_16:
case WRITE_16:
return 1;
ret = (MEGASAS_IS_LOGICAL(cmd)) ?
READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
break;
default:
return 0;
ret = (MEGASAS_IS_LOGICAL(cmd)) ?
NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
}
return ret;
}
/**
@ -1471,7 +1474,7 @@ megasas_dump_pending_frames(struct megasas_instance *instance)
if(!cmd->scmd)
continue;
printk(KERN_ERR "megasas[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
if (megasas_is_ldio(cmd->scmd)){
if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
ldio = (struct megasas_io_frame *)cmd->frame;
mfi_sgl = &ldio->sgl;
sgcount = ldio->sge_count;
@ -1531,7 +1534,7 @@ megasas_build_and_issue_cmd(struct megasas_instance *instance,
/*
* Logical drive command
*/
if (megasas_is_ldio(scmd))
if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
frame_count = megasas_build_ldio(instance, scmd, cmd);
else
frame_count = megasas_build_dcdb(instance, scmd, cmd);
@ -4629,6 +4632,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
instance->crash_dump_h);
instance->crash_dump_buf = NULL;
}
instance->secure_jbod_support =
ctrl_info->adapterOperations3.supportSecurityonJBOD;
if (instance->secure_jbod_support)
dev_info(&instance->pdev->dev, "Firmware supports Secure JBOD\n");
instance->max_sectors_per_req = instance->max_num_sge *
PAGE_SIZE / 512;
if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))

73
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -63,7 +63,6 @@ extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
extern void
megasas_complete_cmd(struct megasas_instance *instance,
struct megasas_cmd *cmd, u8 alt_status);
int megasas_is_ldio(struct scsi_cmnd *cmd);
int
wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
int seconds);
@ -196,6 +195,7 @@ inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
cmd->scmd = NULL;
cmd->sync_cmd_idx = (u32)ULONG_MAX;
memset(cmd->io_request, 0, sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
list_add(&cmd->list, (&fusion->cmd_pool)->next);
spin_unlock_irqrestore(&fusion->mpt_pool_lock, flags);
@ -689,6 +689,8 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
= 1;
init_frame->driver_operations.mfi_capabilities.support_ndrive_r1_lb
= 1;
init_frame->driver_operations.mfi_capabilities.security_protocol_cmds_fw
= 1;
/* Convert capability to LE32 */
cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
@ -1284,6 +1286,7 @@ megasas_make_sgl_fusion(struct megasas_instance *instance,
sgl_ptr =
(struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
memset(sgl_ptr, 0, MEGASAS_MAX_SZ_CHAIN_FRAME);
}
}
@ -1657,6 +1660,8 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
u32 device_id;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
u16 pd_index = 0;
u16 os_timeout_value;
u16 timeout_limit;
struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
struct fusion_context *fusion = instance->ctrl_context;
u8 span, physArm;
@ -1673,44 +1678,48 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
/* Check if this is a system PD I/O */
if (scmd->device->channel < MEGASAS_MAX_PD_CHANNELS &&
instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) {
io_request->Function = 0;
if (fusion->fast_path_io)
io_request->DevHandle =
local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
io_request->RaidContext.timeoutValue =
local_map_ptr->raidMap.fpPdIoTimeoutSec;
io_request->RaidContext.regLockFlags = 0;
io_request->RaidContext.regLockRowLBA = 0;
io_request->RaidContext.regLockLength = 0;
io_request->RaidContext.RAIDFlags =
MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD <<
MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
io_request->IoFlags |= cpu_to_le16(
MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
cmd->request_desc->SCSIIO.DevHandle =
local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
<< MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
cmd->request_desc->SCSIIO.MSIxIndex =
instance->msix_vectors ? smp_processor_id() % instance->msix_vectors : 0;
/*
* If the command is for the tape device, set the
* FP timeout to the os layer timeout value.
*/
if (scmd->device->type == TYPE_TAPE) {
if ((scmd->request->timeout / HZ) > 0xFFFF)
io_request->RaidContext.timeoutValue =
0xFFFF;
else
io_request->RaidContext.timeoutValue =
scmd->request->timeout / HZ;
os_timeout_value = scmd->request->timeout / HZ;
if (instance->secure_jbod_support &&
(megasas_cmd_type(scmd) == NON_READ_WRITE_SYSPDIO)) {
/* system pd firmware path */
io_request->Function =
MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
io_request->RaidContext.timeoutValue =
cpu_to_le16(os_timeout_value);
} else {
/* system pd Fast Path */
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
io_request->RaidContext.regLockFlags = 0;
io_request->RaidContext.regLockRowLBA = 0;
io_request->RaidContext.regLockLength = 0;
timeout_limit = (scmd->device->type == TYPE_DISK) ?
255 : 0xFFFF;
io_request->RaidContext.timeoutValue =
cpu_to_le16((os_timeout_value > timeout_limit) ?
timeout_limit : os_timeout_value);
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
io_request->IoFlags |=
cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
}
} else {
if (scmd->device->channel < MEGASAS_MAX_PD_CHANNELS)
@ -1810,7 +1819,7 @@ megasas_build_io_fusion(struct megasas_instance *instance,
*/
io_request->IoFlags = cpu_to_le16(scp->cmd_len);
if (megasas_is_ldio(scp))
if (megasas_cmd_type(scp) == READ_WRITE_LDIO)
megasas_build_ldio_fusion(instance, scp, cmd);
else
megasas_build_dcdb_fusion(instance, scp, cmd);