diff --git a/Documentation/dcdbas.txt b/Documentation/dcdbas.txt index e1c52e2dc361..309cc57a7c1c 100644 --- a/Documentation/dcdbas.txt +++ b/Documentation/dcdbas.txt @@ -1,4 +1,9 @@ +=================================== +Dell Systems Management Base Driver +=================================== + Overview +======== The Dell Systems Management Base Driver provides a sysfs interface for systems management software such as Dell OpenManage to perform system @@ -17,6 +22,7 @@ more information about the libsmbios project. System Management Interrupt +=========================== On some Dell systems, systems management software must access certain management information via a system management interrupt (SMI). The SMI data @@ -24,12 +30,12 @@ buffer must reside in 32-bit address space, and the physical address of the buffer is required for the SMI. The driver maintains the memory required for the SMI and provides a way for the application to generate the SMI. The driver creates the following sysfs entries for systems management -software to perform these system management interrupts: +software to perform these system management interrupts:: -/sys/devices/platform/dcdbas/smi_data -/sys/devices/platform/dcdbas/smi_data_buf_phys_addr -/sys/devices/platform/dcdbas/smi_data_buf_size -/sys/devices/platform/dcdbas/smi_request + /sys/devices/platform/dcdbas/smi_data + /sys/devices/platform/dcdbas/smi_data_buf_phys_addr + /sys/devices/platform/dcdbas/smi_data_buf_size + /sys/devices/platform/dcdbas/smi_request Systems management software must perform the following steps to execute a SMI using this driver: @@ -43,6 +49,7 @@ a SMI using this driver: Host Control Action +=================== Dell OpenManage supports a host control feature that allows the administrator to perform a power cycle or power off of the system after the OS has finished @@ -69,12 +76,14 @@ power off host control action using this driver: Host Control SMI Type +===================== The following table shows the value to write to host_control_smi_type to perform a power cycle or power off host control action: +=================== ===================== PowerEdge System Host Control SMI Type ----------------- --------------------- +=================== ===================== 300 HC_SMITYPE_TYPE1 1300 HC_SMITYPE_TYPE1 1400 HC_SMITYPE_TYPE2 @@ -87,5 +96,4 @@ PowerEdge System Host Control SMI Type 1655MC HC_SMITYPE_TYPE2 700 HC_SMITYPE_TYPE3 750 HC_SMITYPE_TYPE3 - - +=================== =====================