From 655d722cf7812078306f975a3afe88b96a1306b8 Mon Sep 17 00:00:00 2001 From: Mark Salyzyn Date: Wed, 30 Apr 2008 16:03:42 -0400 Subject: [PATCH] [SCSI] aacraid: Add Power Management support For firmware that supports the feature(s), add the ability to start or stop an array using the associated SCSI commands, to automatically manage the spin-up of an array on new I/O reporting back the appropriate check conditions and actions in cooperation with the normal timeout mechanisms and enable the blackout period management in the Firmware associated with the background spin-down of the arrays when the Firmware times out and deems the arrays as idle. Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 133 +++++++++++++++++++++++++++++++++++++--- drivers/scsi/aacraid/aacraid.h | 24 +++++++- drivers/scsi/aacraid/comminit.c | 2 + drivers/scsi/aacraid/linit.c | 6 ++ 4 files changed, 154 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 460d402..aa4e77c 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -498,6 +498,11 @@ static void _aac_probe_container2(void * context, struct fib * fibptr) (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) && (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) { fsa_dev_ptr->valid = 1; + /* sense_key holds the current state of the spin-up */ + if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY)) + fsa_dev_ptr->sense_data.sense_key = NOT_READY; + else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY) + fsa_dev_ptr->sense_data.sense_key = NO_SENSE; fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol); fsa_dev_ptr->size = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) + @@ -1509,20 +1514,35 @@ static void io_callback(void *context, struct fib * fibptr) scsi_dma_unmap(scsicmd); readreply = (struct aac_read_reply *)fib_data(fibptr); - if (le32_to_cpu(readreply->status) == ST_OK) - scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; - else { + switch (le32_to_cpu(readreply->status)) { + case ST_OK: + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_GOOD; + dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE; + break; + case ST_NOT_READY: + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_CHECK_CONDITION; + set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY, + SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data), + SCSI_SENSE_BUFFERSIZE)); + break; + default: #ifdef AAC_DETAILED_STATUS_INFO printk(KERN_WARNING "io_callback: io failed, status = %d\n", le32_to_cpu(readreply->status)); #endif - scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_CHECK_CONDITION; set_sense(&dev->fsa_dev[cid].sense_data, HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE, ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0); memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data), SCSI_SENSE_BUFFERSIZE)); + break; } aac_fib_complete(fibptr); aac_fib_free(fibptr); @@ -1863,6 +1883,84 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd) return SCSI_MLQUEUE_HOST_BUSY; } +static void aac_start_stop_callback(void *context, struct fib *fibptr) +{ + struct scsi_cmnd *scsicmd = context; + + if (!aac_valid_context(scsicmd, fibptr)) + return; + + BUG_ON(fibptr == NULL); + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + + aac_fib_complete(fibptr); + aac_fib_free(fibptr); + scsicmd->scsi_done(scsicmd); +} + +static int aac_start_stop(struct scsi_cmnd *scsicmd) +{ + int status; + struct fib *cmd_fibcontext; + struct aac_power_management *pmcmd; + struct scsi_device *sdev = scsicmd->device; + struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata; + + if (!(aac->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_POWER_MANAGEMENT)) { + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + return 0; + } + + if (aac->in_reset) + return SCSI_MLQUEUE_HOST_BUSY; + + /* + * Allocate and initialize a Fib + */ + cmd_fibcontext = aac_fib_alloc(aac); + if (!cmd_fibcontext) + return SCSI_MLQUEUE_HOST_BUSY; + + aac_fib_init(cmd_fibcontext); + + pmcmd = fib_data(cmd_fibcontext); + pmcmd->command = cpu_to_le32(VM_ContainerConfig); + pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT); + /* Eject bit ignored, not relevant */ + pmcmd->sub = (scsicmd->cmnd[4] & 1) ? + cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT); + pmcmd->cid = cpu_to_le32(sdev_id(sdev)); + pmcmd->parm = (scsicmd->cmnd[1] & 1) ? + cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0; + + /* + * Now send the Fib to the adapter + */ + status = aac_fib_send(ContainerCommand, + cmd_fibcontext, + sizeof(struct aac_power_management), + FsaNormal, + 0, 1, + (fib_callback)aac_start_stop_callback, + (void *)scsicmd); + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) { + scsicmd->SCp.phase = AAC_OWNER_FIRMWARE; + return 0; + } + + aac_fib_complete(cmd_fibcontext); + aac_fib_free(cmd_fibcontext); + return SCSI_MLQUEUE_HOST_BUSY; +} + /** * aac_scsi_cmd() - Process SCSI command * @scsicmd: SCSI command block @@ -1899,7 +1997,9 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) * If the target container doesn't exist, it may have * been newly created */ - if ((fsa_dev_ptr[cid].valid & 1) == 0) { + if (((fsa_dev_ptr[cid].valid & 1) == 0) || + (fsa_dev_ptr[cid].sense_data.sense_key == + NOT_READY)) { switch (scsicmd->cmnd[0]) { case SERVICE_ACTION_IN: if (!(dev->raw_io_interface) || @@ -2091,8 +2191,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp)); /* Do not cache partition table for arrays */ scsicmd->device->removable = 1; - - scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_GOOD; scsicmd->scsi_done(scsicmd); return 0; @@ -2187,15 +2287,32 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) * These commands are all No-Ops */ case TEST_UNIT_READY: + if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) { + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | + SAM_STAT_CHECK_CONDITION; + set_sense(&dev->fsa_dev[cid].sense_data, + NOT_READY, SENCODE_BECOMING_READY, + ASENCODE_BECOMING_READY, 0, 0); + memcpy(scsicmd->sense_buffer, + &dev->fsa_dev[cid].sense_data, + min_t(size_t, + sizeof(dev->fsa_dev[cid].sense_data), + SCSI_SENSE_BUFFERSIZE)); + scsicmd->scsi_done(scsicmd); + return 0; + } + /* FALLTHRU */ case RESERVE: case RELEASE: case REZERO_UNIT: case REASSIGN_BLOCKS: case SEEK_10: - case START_STOP: scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; scsicmd->scsi_done(scsicmd); return 0; + + case START_STOP: + return aac_start_stop(scsicmd); } switch (scsicmd->cmnd[0]) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index a990e5b..73916ad 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -12,7 +12,7 @@ *----------------------------------------------------------------------------*/ #ifndef AAC_DRIVER_BUILD -# define AAC_DRIVER_BUILD 2455 +# define AAC_DRIVER_BUILD 2456 # define AAC_DRIVER_BRANCH "-ms" #endif #define MAXIMUM_NUM_CONTAINERS 32 @@ -424,6 +424,8 @@ struct aac_init */ __le32 InitFlags; /* flags for supported features */ #define INITFLAGS_NEW_COMM_SUPPORTED 0x00000001 +#define INITFLAGS_DRIVER_USES_UTC_TIME 0x00000010 +#define INITFLAGS_DRIVER_SUPPORTS_PM 0x00000020 __le32 MaxIoCommands; /* max outstanding commands */ __le32 MaxIoSize; /* largest I/O command */ __le32 MaxFibSize; /* largest FIB to adapter */ @@ -867,8 +869,10 @@ struct aac_supplement_adapter_info }; #define AAC_FEATURE_FALCON cpu_to_le32(0x00000010) #define AAC_FEATURE_JBOD cpu_to_le32(0x08000000) -#define AAC_OPTION_MU_RESET cpu_to_le32(0x00000001) -#define AAC_OPTION_IGNORE_RESET cpu_to_le32(0x00000002) +/* SupportedOptions2 */ +#define AAC_OPTION_MU_RESET cpu_to_le32(0x00000001) +#define AAC_OPTION_IGNORE_RESET cpu_to_le32(0x00000002) +#define AAC_OPTION_POWER_MANAGEMENT cpu_to_le32(0x00000004) #define AAC_SIS_VERSION_V3 3 #define AAC_SIS_SLOT_UNKNOWN 0xFF @@ -1148,6 +1152,7 @@ struct aac_dev #define ST_DQUOT 69 #define ST_STALE 70 #define ST_REMOTE 71 +#define ST_NOT_READY 72 #define ST_BADHANDLE 10001 #define ST_NOT_SYNC 10002 #define ST_BAD_COOKIE 10003 @@ -1269,6 +1274,18 @@ struct aac_synchronize_reply { u8 data[16]; }; +#define CT_POWER_MANAGEMENT 245 +#define CT_PM_START_UNIT 2 +#define CT_PM_STOP_UNIT 3 +#define CT_PM_UNIT_IMMEDIATE 1 +struct aac_power_management { + __le32 command; /* VM_ContainerConfig */ + __le32 type; /* CT_POWER_MANAGEMENT */ + __le32 sub; /* CT_PM_* */ + __le32 cid; + __le32 parm; /* CT_PM_sub_* */ +}; + #define CT_PAUSE_IO 65 #define CT_RELEASE_IO 66 struct aac_pause { @@ -1536,6 +1553,7 @@ struct aac_mntent { #define FSCS_NOTCLEAN 0x0001 /* fsck is necessary before mounting */ #define FSCS_READONLY 0x0002 /* possible result of broken mirror */ #define FSCS_HIDDEN 0x0004 /* should be ignored - set during a clear */ +#define FSCS_NOT_READY 0x0008 /* Array spinning up to fulfil request */ struct aac_query_mount { __le32 command; diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 294a802..cbac063 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -97,6 +97,8 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); } + init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | + INITFLAGS_DRIVER_SUPPORTS_PM); init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); init->MaxFibSize = cpu_to_le32(dev->max_fib_size); diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index c444527..1f7c836 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -811,6 +811,12 @@ static ssize_t aac_show_flags(struct device *cdev, "SAI_READ_CAPACITY_16\n"); if (dev->jbod) len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n"); + if (dev->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_POWER_MANAGEMENT) + len += snprintf(buf + len, PAGE_SIZE - len, + "SUPPORTED_POWER_MANAGEMENT\n"); + if (dev->msi) + len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n"); return len; } -- 2.7.4