diff options
author | Yang, Bo <Bo.Yang@lsi.com> | 2009-10-06 14:33:06 -0600 |
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committer | James Bottomley <James.Bottomley@suse.de> | 2009-10-29 13:03:19 -0400 |
commit | 044833b572b96afe91506a0edec42efd84ba4939 (patch) | |
tree | 51b603f30279efd721690bbf9e7b0763eaf34a1a /drivers/scsi/megaraid | |
parent | 81e403ce3c6a34cd705bf54d4cdeefdeb7068a8d (diff) | |
download | kernel_samsung_smdk4412-044833b572b96afe91506a0edec42efd84ba4939.zip kernel_samsung_smdk4412-044833b572b96afe91506a0edec42efd84ba4939.tar.gz kernel_samsung_smdk4412-044833b572b96afe91506a0edec42efd84ba4939.tar.bz2 |
[SCSI] megaraid_sas: report system PDs to OS
When OS issue inquiry, it will check driver's internal pd_list.
Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/megaraid')
-rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 91 |
1 files changed, 65 insertions, 26 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 48c3658..9967ee7 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -1115,24 +1115,76 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *)) return 0; } +static struct megasas_instance *megasas_lookup_instance(u16 host_no) +{ + int i; + + for (i = 0; i < megasas_mgmt_info.max_index; i++) { + + if ((megasas_mgmt_info.instance[i]) && + (megasas_mgmt_info.instance[i]->host->host_no == host_no)) + return megasas_mgmt_info.instance[i]; + } + + return NULL; +} + static int megasas_slave_configure(struct scsi_device *sdev) { + u16 pd_index = 0; + struct megasas_instance *instance ; + + instance = megasas_lookup_instance(sdev->host->host_no); + /* - * Don't export physical disk devices to the disk driver. - * - * FIXME: Currently we don't export them to the midlayer at all. - * That will be fixed once LSI engineers have audited the - * firmware for possible issues. - */ - if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK) + * Don't export physical disk devices to the disk driver. + * + * FIXME: Currently we don't export them to the midlayer at all. + * That will be fixed once LSI engineers have audited the + * firmware for possible issues. + */ + if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && + sdev->type == TYPE_DISK) { + pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if (instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) { + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; + } return -ENXIO; + } /* - * The RAID firmware may require extended timeouts. - */ - if (sdev->channel >= MEGASAS_MAX_PD_CHANNELS) - blk_queue_rq_timeout(sdev->request_queue, - MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + * The RAID firmware may require extended timeouts. + */ + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; +} + +static int megasas_slave_alloc(struct scsi_device *sdev) +{ + u16 pd_index = 0; + struct megasas_instance *instance ; + instance = megasas_lookup_instance(sdev->host->host_no); + if ((sdev->channel < MEGASAS_MAX_PD_CHANNELS) && + (sdev->type == TYPE_DISK)) { + /* + * Open the OS scan to the SYSTEM PD + */ + pd_index = + (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if ((instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) && + (instance->pd_list[pd_index].driveType == + TYPE_DISK)) { + return 0; + } + return -ENXIO; + } return 0; } @@ -1423,6 +1475,7 @@ static struct scsi_host_template megasas_template = { .name = "LSI SAS based MegaRAID driver", .proc_name = "megaraid_sas", .slave_configure = megasas_slave_configure, + .slave_alloc = megasas_slave_alloc, .queuecommand = megasas_queue_command, .eh_device_reset_handler = megasas_reset_device, .eh_bus_reset_handler = megasas_reset_bus_host, @@ -3455,20 +3508,6 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, return error; } -static struct megasas_instance *megasas_lookup_instance(u16 host_no) -{ - int i; - - for (i = 0; i < megasas_mgmt_info.max_index; i++) { - - if ((megasas_mgmt_info.instance[i]) && - (megasas_mgmt_info.instance[i]->host->host_no == host_no)) - return megasas_mgmt_info.instance[i]; - } - - return NULL; -} - static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) { struct megasas_iocpacket __user *user_ioc = |