[SCSI] ipr: set the data list length in the request control block
authorWayne Boyer <wayneb@linux.vnet.ibm.com>
Fri, 14 May 2010 15:55:13 +0000 (08:55 -0700)
committerJames Bottomley <James.Bottomley@suse.de>
Mon, 24 May 2010 16:11:06 +0000 (11:11 -0500)
In bring up testing for the new 64 bit adapters, the first read command failed
after loading the driver.  The cause was that the command requires more than
one scatter gather element and the corresponding code to set the data list
length in the request control block was missing.  This patch adds the correct
assignment.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
drivers/scsi/ipr.c

index 2f280d0..5244282 100644 (file)
@@ -5021,6 +5021,8 @@ static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
        ipr_cmd->dma_use_sg = nseg;
 
        ioarcb->data_transfer_length = cpu_to_be32(length);
+       ioarcb->ioadl_len =
+               cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
 
        if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
                ioadl_flags = IPR_IOADL_FLAGS_WRITE;