From 7497cde883b184ead109652f236df98d78090a90 Mon Sep 17 00:00:00 2001 From: "Sumit.Saxena@avagotech.com" Date: Mon, 5 Jan 2015 20:06:03 +0530 Subject: [PATCH] megaraid_sas: add support for secure JBOD 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 Signed-off-by: Chaitra Basappa Reviewed-by: Martin K. Petersen Signed-off-by: Christoph Hellwig --- 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 0d44d91c2fce..b8b378dec7ec 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 401ed67cf4c1..9f37ddee4d8c 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 b5362c196000..af5ab9e5e8e5 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); -- 2.45.2