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qemu: improve scsi dma speed by increasing the dma buffer size

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taken from Xen 17267:f4a92f0db20f, original patch by Samuel Thibault.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5385 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-10-01 21:46:23 +00:00
parent 9155fc4599
commit f0f72ffe64
1 changed files with 1 additions and 1 deletions
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2
hw/scsi-disk.c
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@ -34,7 +34,7 @@ do { fprintf(stderr, "scsi-disk: " fmt , ##args); } while (0)
#define SENSE_HARDWARE_ERROR 4
#define SENSE_ILLEGAL_REQUEST 5
#define SCSI_DMA_BUF_SIZE 65536
#define SCSI_DMA_BUF_SIZE 131072
typedef struct SCSIRequest {
SCSIDeviceState *dev;