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Commit 1bf7724e authored by Dave Olson's avatar Dave Olson Committed by Roland Dreier
Browse files

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: default avatarDave Olson <dave.olson@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 6114d4cd

drivers/infiniband/hw/ipath/ipath_file_ops.c

+7 −2
Original line number Diff line number Diff line
@@ -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;