ide: add IDE_HFLAG_RQSIZE_256 host flag

Add IDE_HFLAG_RQSIZE_256 host flag to tell ide_pci_setup_ports() to set
hwif->rqsize to 256 sectors.  Convert pdc202xx_old host driver to use it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index ff9d293f9ae9..c5b52dd16a89 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1265,6 +1265,8 @@ enum {
         IDE_HFLAG_LEGACY_IRQS           = (1 << 21),
         /* force use of legacy IRQs */
         IDE_HFLAG_FORCE_LEGACY_IRQS     = (1 << 22),
+        /* limit LBA48 requests to 256 sectors */
+        IDE_HFLAG_RQSIZE_256            = (1 << 23),
 };
 
 #ifdef CONFIG_BLK_DEV_OFFBOARD