CONFIG_FUSION_MAX_SGE: Maximum number of scatter gather entries (16 - 128)

General informations

The Linux kernel configuration item CONFIG_FUSION_MAX_SGE has multiple definitions:

Maximum number of scatter gather entries (16 - 128) found in drivers/message/fusion/Kconfig

The configuration item CONFIG_FUSION_MAX_SGE:

• prompt: Maximum number of scatter gather entries (16 - 128)
• type: int
• depends on: (none)
• defined in drivers/message/fusion/Kconfig
• found in Linux kernels: 2.6.13–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12

Help text

This option allows you to specify the maximum number of scatter- gather entries per I/O. The driver default is 128, which matches SCSI_MAX_PHYS_SEGMENTS. However, it may decreased down to 16. Decreasing this parameter will reduce memory requirements on a per controller instance.

Maximum number of scatter gather entries found in drivers/message/fusion/Kconfig

The configuration item CONFIG_FUSION_MAX_SGE:

• prompt: Maximum number of scatter gather entries
• type: int
• depends on: CONFIG_FUSION
• defined in drivers/message/fusion/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.12

Help text

This option allows you to specify the maximum number of scatter- gather entries per I/O. The driver defaults to 40, a reasonable number for most systems. However, the user may increase this up to 128. Increasing this parameter will require significantly more memory on a per controller instance. Increasing the parameter is not necessary (or recommended) unless the user will be running large I/O's via the raw interface.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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