diff mbox series

[PULL,05/21] megasas: fix mapped frame size

Message ID 1557953433-19663-6-git-send-email-pbonzini@redhat.com
State New
Headers show
Series [PULL,01/21] hw/input: Add a CONFIG_PS2 switch for theps2.c file | expand

Commit Message

Paolo Bonzini May 15, 2019, 8:50 p.m. UTC 
From: Peter Lieven <pl@kamp.de>

the current value of 1024 bytes (16 * MFI_FRAME_SIZE) we map is not enough to hold
the maximum number of scatter gather elements we advertise. We actually need a
maximum of 2048 bytes. This is 128 max sg elements * 16 bytes (sizeof (union mfi_sgl)).

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <20190404121015.28634-1-pl@kamp.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi/megasas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index a56317e..5ad762d 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -477,7 +477,7 @@  static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
 {
     PCIDevice *pcid = PCI_DEVICE(s);
     MegasasCmd *cmd = NULL;
-    int frame_size = MFI_FRAME_SIZE * 16;
+    int frame_size = MEGASAS_MAX_SGE * sizeof(union mfi_sgl);
     hwaddr frame_size_p = frame_size;
     unsigned long index;