Changeset 17080

Timestamp:

05/16/11 23:08:40 (2 years ago)

Author:

BrainSlayer

Message:

performance

Location:

src/linux/laguna/linux-2.6.31.14/drivers/usb

Files:

• core/hub.c (modified) (1 diff)
• storage/scsiglue.c (modified) (1 diff)

src/linux/laguna/linux-2.6.31.14/drivers/usb/core/hub.c

@@ -26 +26 @@
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
-
+#include <asm/io.h>
+#include <linux/usb/ehci_def.h>
 #include "usb.h"
 #include "hcd.h"

src/linux/laguna/linux-2.6.31.14/drivers/usb/storage/scsiglue.c

@@ -541 +541 @@
         .sg_tablesize =                 SG_ALL,
 
-        /* limit the total size of a transfer to 120 KB */
-        .max_sectors =                  240,
+        /* limit the total size of a transfer to 1024 KB */
+#ifdef CONFIG_USB_XHCI_HCD
+        .max_sectors =                  240,    // larger than 240 will cause USB 3.0 fail
+#else
+        .max_sectors =                  1024, //Jacky-20100917.  when value >= 1024, the USB Bulk performance gets no more improve
+#endif
 
         /* merge commands... this seems to help performance, but