Before installing or upgrading the driver, you must apply the Microsoft Storport update. The Storport driver allocates memory for the access ranges and initializes this member. When miniport drivers detect this value, they must return one of the values in the following table in the same member to indicate to the port driver that the miniport driver supports bit DMA. In this case, miniport drivers must set this member to TRUE. This section provides the most common ways of installing and upgrading the driver for each operating system, including:. The amount of time, in microseconds, to pause the adapter after a reset is detected.

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FC HBA STOR Miniport Driver for Windows Readme File

If Windows Server automatically installs the driver for the newly-added FC adapter upon startup, without prompting you for a selection for example, Windows Server installed an inbox drivergo to the Updating the Existing Driver section. Mniport drivers must not modify this member. Miniport drivers must not modify this value since this the default DMA addressing if a value for Dma64BitAddresses is not set.

Allocations are restricted to 4GB boundary alignment in order to prevent them from crossing a 4GB boundary. Indicates the system DMA controller should be programmed for demand-mode rather than single-cycle operations.


This documentation is archived and is not being maintained. A miniport driver can reset this member to a lesser value if the HBA has more limited capabilities or to a greater value, indicating that the HBA has extended capabilities.

This procedure is only necessary when installing the driver during the initial OS installation. A miniport driver uses its device extension as storage for driver-determined host bus adapter HBA information. QLogic Technical Support can be reached by the following methods:. System reserved features are supported.

Specifies the maximum number of bytes the HBA can transfer in a single transfer operation.

Initialized and reserved for use by the Storport driver. Specifies the bus-relative interrupt request level. Minipoort size of per-logical-unit storage is specified via the SpecificLuExtensionSize field, described later in this topic. Specifies the number of buses controlled by the adapter.


Storport adapters are required to support bus-width DMA. Rather, Storport resets the device extension to zero only when it is first allocated, so only the first call to HwStorFindAdapter for a given adapter receives a zeroed-out device extension. The Storport port driver makes no assumptions about the HBA’s interrupt usage, so the default value is zero.

We appreciate your feedback. Subsequent calls to HwStorFindAdapter and other miniport functions receive the device extension as last modified by the stofport driver.

By default, the value of this member is zero. The miniport driver supports full bit addressing. All rights reserved worldwide. To ensure the driver functions properly, the driver installation script uses the QL2x Miniports must not set this feature. The maximum value for this member is By default, the value of this member is 0x Maps the buffer all for IO including read and write requests. Collapse the table of content. Storport may fail to map the buffer under low system memory conditions.

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This member specifies the size in bytes required by the storportt driver for its per-logical-unit-storage, if any, to handle data transfers larger than 64K.

To remove the driver in a Windows environment, uninstall it as a Plug and Play device as follows:.

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If its HBA has more limited transfer support, a miniport driver must reset this member according to the HBA’s transfer capacity. Miniport drivers must not modify this member. Specifies the size in bytes required by the miniport driver for its per-request storage, if any, to handle data transfers larger than 64K.