]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blobdiff - drivers/scsi/aacraid/aachba.c
[SCSI] aacraid: Add Power Management support
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / aacraid / aachba.c
index 460d4024c46c4c8118cb841d7c5107f69ed0ef29..aa4e77c252735c593e523ae4a9f516045b674733 100644 (file)
@@ -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])