i2o_block_sglist_alloc
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## Name

i2o_block_sglist_alloc — Allocate the SG list and map it

## Synopsis

`int i2o_block_sglist_alloc (` | struct i2o_controller * c,
| struct i2o_block_request * ireq,
| u32 ** mptr`)`;

## Arguments

`c`

  I2O controller to which the request belongs

`ireq`

  I2O block request

`mptr`

  message body pointer

## Description

Builds the SG list and map it to be accessible by the controller.

Returns 0 on failure or 1 on success.

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