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Tue, 23 Jul 2019 17:01:25 +0000 (GMT) Received: from localhost (unknown [9.53.179.212]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 23 Jul 2019 17:01:25 +0000 (GMT) From: Michael Roth To: qemu-devel@nongnu.org Date: Tue, 23 Jul 2019 12:01:00 -0500 Message-Id: <20190723170104.4327-33-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190723170104.4327-1-mdroth@linux.vnet.ibm.com> References: <20190723170104.4327-1-mdroth@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-07-23_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1907230170 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 32/36] megasas: fix mapped frame size X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Peter Lieven , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Peter Lieven 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 nee= d a maximum of 2048 bytes. This is 128 max sg elements * 16 bytes (sizeof (unio= n mfi_sgl)). Cc: qemu-stable@nongnu.org Signed-off-by: Peter Lieven Message-Id: <20190404121015.28634-1-pl@kamp.de> Reviewed-by: Hannes Reinecke Signed-off-by: Paolo Bonzini (cherry picked from commit 2e56fbc87f6ec3cd56c37b01d313abd502b80d61) Signed-off-by: Michael Roth --- hw/scsi/megasas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index a56317e026..5ad762de23 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -477,7 +477,7 @@ static MegasasCmd *megasas_enqueue_frame(MegasasState *= s, { PCIDevice *pcid =3D PCI_DEVICE(s); MegasasCmd *cmd =3D NULL; - int frame_size =3D MFI_FRAME_SIZE * 16; + int frame_size =3D MEGASAS_MAX_SGE * sizeof(union mfi_sgl); hwaddr frame_size_p =3D frame_size; unsigned long index; =20 --=20 2.17.1