diff options
| author | Dave Olson <dave.olson@qlogic.com> | 2008-12-05 22:13:19 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-12-05 22:13:19 +0300 |
| commit | 1bf7724e093cf3071d943d53bfa4de8b8e50426b (patch) | |
| tree | 212fd83f15359614222b2ec0b18ef93c7d04e811 /drivers/infiniband | |
| parent | 6114d4cd313acbb6e9935c2bee77e368d10c4f04 (diff) | |
| download | linux-1bf7724e093cf3071d943d53bfa4de8b8e50426b.tar.xz | |
IB/ipath: Fix spi_pioindex value
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>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_file_ops.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 1af1f3a907c6..ceab52c09cdb 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -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; |