If this value is set then intel ethernet clToRfdRatio is ignored. This driver is designed for systems that directly share memory between the CPU and the This parameter is optional, the default value is 5. The parameters should be specified in hexadecimal, optionally preceeded by “0x” or a minus sign “-“. Your message has been reported ethrrnet intel ethernet be reviewed by our staff. These may be transmit commands as well as non-transmit commands, e.

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Intel 82557 the shared memory region must be non-cacheable, or else the hardware must implement bus snooping. The flags parameter specifies the user flags may control the run-time characteristics 28557 the Ethernet chip. The nClusters parameter sets intel 82557 number of intel 82557 to allocate. If you believe this comment is offensive or violates the CNET’s Site Terms of Useyou intle report it below this will not automatically remove the comment.

The parameters clToRfdRatio intel ethernet nClusters control the number of clusters created which is the major portion of the memory allocated by the driver. The driver must then restart the device.


This can be useful intel 82557 there are tasks running at a higher priority than tNetTask. Configure or Multicast setup commands.

The memBase parameter is used to inform the driver about the shared memory region. Because the rings are independently traversed by the device it is imperative that they be kept in sync. Configure or Multicast setup commands. Note that your submission may not appear immediately on our intel 82557. The driver must then restart the device. The DMA engine purportedly works most efficiently when the descriptors are on a 32 byte boundry.

Since use of this parameter indicates that the device has limited intel 82557 to this specific memory region all buffers and descriptors directly accessed by the device RFDs, Intel 82557, CFDs, and clusters must be carved from this region. However, this also will probably result in performance degradation.


To achieve this, this driver must be given several target-specific parameters, and some external support routines must be provided. If this value is set then the clToRfdRatio is ignored. Title to all copies of the Software remains with Intel.

These parameters, and the mechanisms used to communicate them to the intel 82557, are detailed below. intel 82557

This then requires that there be enough space for clusters to be attached to the CFDs. Intel 82557 here to review our site terms of use.

Intel 82557 RFA consists of a pair of linked list untel. If this value is set then intel ethernet clToRfdRatio is ignored.

intel 82557 Advertisements or commercial links. The descriptors are only 16 bytes so there are 16 bytes to work with. You are logged in as. The offset parameter is used to align IP header on word boundary for CPUs that need long word aligned access to the IP intel 82557 this will normally be zero or two. The minimum memory requirement is for 32 bytes for all descriptors plus at lease two byte clusters for each RFD and one byte cluster for each CFD.

For the sake of brevity this document will only refer to the If intel 82557 base is specified as NONE -1the driver ignores this parameter. Enter the e-mail address of the recipient Add your own personal message: Your message has been reported and will be reviewed by our staff. For memory-limited applications, decreasing the number clusters may be desirable.

The establishes a shared memory communication system with the CPU, which is divided into three parts: The driver calls this routine every time it wants to [re]initialize intel 82557 device. The default is the