+ iommu-sg-merging-sata_inic162x-use-pci_set_dma_max_seg_size.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     iommu sg merging: sata_inic162x: use pci_set_dma_max_seg_size
has been added to the -mm tree.  Its filename is
     iommu-sg-merging-sata_inic162x-use-pci_set_dma_max_seg_size.patch

*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

------------------------------------------------------
Subject: iommu sg merging: sata_inic162x: use pci_set_dma_max_seg_size
From: FUJITA Tomonori <tomof@acm.org>

This sets the segment size limit properly via pci_set_dma_max_seg_size
and remove blk_queue_max_segment_size because scsi-ml calls it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/ata/sata_inic162x.c |   25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff -puN drivers/ata/sata_inic162x.c~iommu-sg-merging-sata_inic162x-use-pci_set_dma_max_seg_size drivers/ata/sata_inic162x.c
--- a/drivers/ata/sata_inic162x.c~iommu-sg-merging-sata_inic162x-use-pci_set_dma_max_seg_size
+++ a/drivers/ata/sata_inic162x.c
@@ -108,17 +108,6 @@ struct inic_port_priv {
 	u8	cached_pirq_mask;
 };
 
-static int inic_slave_config(struct scsi_device *sdev)
-{
-	/* This controller is braindamaged.  dma_boundary is 0xffff
-	 * like others but it will lock up the whole machine HARD if
-	 * 65536 byte PRD entry is fed.  Reduce maximum segment size.
-	 */
-	blk_queue_max_segment_size(sdev->request_queue, 65536 - 512);
-
-	return ata_scsi_slave_config(sdev);
-}
-
 static struct scsi_host_template inic_sht = {
 	.module			= THIS_MODULE,
 	.name			= DRV_NAME,
@@ -132,7 +121,7 @@ static struct scsi_host_template inic_sh
 	.use_clustering		= ATA_SHT_USE_CLUSTERING,
 	.proc_name		= DRV_NAME,
 	.dma_boundary		= ATA_DMA_BOUNDARY,
-	.slave_configure	= inic_slave_config,
+	.slave_configure	= ata_scsi_slave_config,
 	.slave_destroy		= ata_scsi_slave_destroy,
 	.bios_param		= ata_std_bios_param,
 };
@@ -730,6 +719,18 @@ static int inic_init_one(struct pci_dev 
 		return rc;
 	}
 
+	/*
+	 * This controller is braindamaged.  dma_boundary is 0xffff
+	 * like others but it will lock up the whole machine HARD if
+	 * 65536 byte PRD entry is fed. Reduce maximum segment size.
+	 */
+	rc = pci_set_dma_max_seg_size(pdev, 65536 - 512);
+	if (rc) {
+		dev_printk(KERN_ERR, &pdev->dev,
+			   "failed to set the maximum segment size.\n");
+		return rc;
+	}
+
 	rc = init_controller(iomap[MMIO_BAR], hpriv->cached_hctl);
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev,
_

Patches currently in -mm which might be from tomof@acm.org are

git-scsi-misc.patch
iommu-sg-merging-add-device_dma_parameters-structure.patch
iommu-sg-merging-pci-add-device_dma_parameters-support.patch
iommu-sg-merging-x86-make-pci-gart-iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-ppc-make-iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-ia64-make-sba_iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-alpha-make-pci_iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-sparc64-make-iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-parisc-make-iommu-respect-the-segment-size-limits.patch
iommu-sg-merging-call-blk_queue_segment_boundary-in-__scsi_alloc_queue.patch
iommu-sg-merging-sata_inic162x-use-pci_set_dma_max_seg_size.patch
iommu-sg-merging-aacraid-use-pci_set_dma_max_seg_size.patch