This patch will add support for Secure Encrypting Drives(SED) in JBOD mode. below are the key points-
1) If Firmware supports SED JBOD, all non Read Write commands to JBODs will be sent via Firmware path and Read write commands to JBOD will be sent via
fastpath.
2) If firmware does not support SED JBOD, driver will fall back to old design .i.e send all JBOD IOs via fastpath.
Signed-off-by: Sumit Saxena <sumit.saxena@xxxxxxxxxxxxx>
Signed-off-by: Chaitra Basappa <chaitra.basappa@xxxxxxxxxxxxx>
---
drivers/scsi/megaraid/megaraid_sas.h | 57 +++++++++++++++++---
drivers/scsi/megaraid/megaraid_sas_base.c | 28 +++++++----
drivers/scsi/megaraid/megaraid_sas_fusion.c | 73 +++++++++++++++------------
3 files changed, 107 insertions(+), 51 deletions(-)
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 0d44d91..842e6f7 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -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 */
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 38e1f8a..ef56e37 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -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))
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index b5362c1..bd0e0cb 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -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);
--
1.7.3
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