36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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From 2e56fbc87f6ec3cd56c37b01d313abd502b80d61 Mon Sep 17 00:00:00 2001
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From: Peter Lieven <pl@kamp.de>
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Date: Thu, 4 Apr 2019 14:10:15 +0200
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Subject: [PATCH] megasas: fix mapped frame size
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the current value of 1024 bytes (16 * MFI_FRAME_SIZE) we map is not enough to hold
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the maximum number of scatter gather elements we advertise. We actually need a
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maximum of 2048 bytes. This is 128 max sg elements * 16 bytes (sizeof (union mfi_sgl)).
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Peter Lieven <pl@kamp.de>
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Message-Id: <20190404121015.28634-1-pl@kamp.de>
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Reviewed-by: Hannes Reinecke <hare@suse.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry-picked from commit 2e56fbc87f6ec3cd56c37b01d313abd502b80d61)
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---
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hw/scsi/megasas.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
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index a56317e026..5ad762de23 100644
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--- a/hw/scsi/megasas.c
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+++ b/hw/scsi/megasas.c
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@@ -477,7 +477,7 @@ static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
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{
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PCIDevice *pcid = PCI_DEVICE(s);
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MegasasCmd *cmd = NULL;
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- int frame_size = MFI_FRAME_SIZE * 16;
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+ int frame_size = MEGASAS_MAX_SGE * sizeof(union mfi_sgl);
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hwaddr frame_size_p = frame_size;
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unsigned long index;
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--
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2.19.1
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