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IB/ipath: Fix spi_pioindex value

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ipath_piobufbase was a single value offset, but is multiple values on
newer chips, so use only the 32 bits for the 2K buffers (4K buffers
are currently used only by the driver).

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Dave Olson 2008-12-05 11:13:19 -08:00 committed by Roland Dreier
parent 6114d4cd31
commit 1bf7724e09
1 changed files with 7 additions and 2 deletions
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9
drivers/infiniband/hw/ipath/ipath_file_ops.c
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@ -223,8 +223,13 @@ static int ipath_get_base_info(struct file *fp,
(unsigned long long) kinfo->spi_subport_rcvhdr_base);
}
kinfo->spi_pioindex = (kinfo->spi_piobufbase - dd->ipath_piobufbase) /
dd->ipath_palign;
/*
* All user buffers are 2KB buffers. If we ever support
* giving 4KB buffers to user processes, this will need some
* work.
*/
kinfo->spi_pioindex = (kinfo->spi_piobufbase -
(dd->ipath_piobufbase & 0xffffffff)) / dd->ipath_palign;
kinfo->spi_pioalign = dd->ipath_palign;
kinfo->spi_qpair = IPATH_KD_QP;