From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33429) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEtsO-0000xz-D4 for qemu-devel@nongnu.org; Wed, 06 Aug 2014 01:35:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XEtsH-00011S-Po for qemu-devel@nongnu.org; Wed, 06 Aug 2014 01:35:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50698) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEtsH-00011K-IB for qemu-devel@nongnu.org; Wed, 06 Aug 2014 01:34:57 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s765YuOL016457 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 6 Aug 2014 01:34:57 -0400 From: Fam Zheng Date: Wed, 6 Aug 2014 13:35:01 +0800 Message-Id: <1407303308-4615-4-git-send-email-famz@redhat.com> In-Reply-To: <1407303308-4615-1-git-send-email-famz@redhat.com> References: <1407303308-4615-1-git-send-email-famz@redhat.com> Subject: [Qemu-devel] [RFC PATCH v2 03/10] virtio-scsi: Split virtio_scsi_handle_ctrl_req from virtio_scsi_handle_ctrl List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, pbonzini@redhat.com, stefanha@redhat.com To share with dataplane code. Signed-off-by: Fam Zheng --- hw/scsi/virtio-scsi.c | 60 ++++++++++++++++++++++------------------- include/hw/virtio/virtio-scsi.h | 1 + 2 files changed, 34 insertions(+), 27 deletions(-) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index bd5d789..cb2745d 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -308,40 +308,46 @@ fail: req->resp.tmf.response = VIRTIO_SCSI_S_BAD_TARGET; } -static void virtio_scsi_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) +void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req) { - VirtIOSCSI *s = (VirtIOSCSI *)vdev; - VirtIOSCSIReq *req; + VirtIODevice *vdev = (VirtIODevice *)s; + int type; - while ((req = virtio_scsi_pop_req(s, vq))) { - int type; + if (iov_to_buf(req->elem.out_sg, req->elem.out_num, 0, + &type, sizeof(type)) < sizeof(type)) { + virtio_scsi_bad_req(); + return; + } - if (iov_to_buf(req->elem.out_sg, req->elem.out_num, 0, - &type, sizeof(type)) < sizeof(type)) { + virtio_tswap32s(vdev, &req->req.tmf.type); + if (req->req.tmf.type == VIRTIO_SCSI_T_TMF) { + if (virtio_scsi_parse_req(req, sizeof(VirtIOSCSICtrlTMFReq), + sizeof(VirtIOSCSICtrlTMFResp)) < 0) { virtio_scsi_bad_req(); - continue; + } else { + virtio_scsi_do_tmf(s, req); } - virtio_tswap32s(vdev, &req->req.tmf.type); - if (req->req.tmf.type == VIRTIO_SCSI_T_TMF) { - if (virtio_scsi_parse_req(req, sizeof(VirtIOSCSICtrlTMFReq), - sizeof(VirtIOSCSICtrlTMFResp)) < 0) { - virtio_scsi_bad_req(); - } else { - virtio_scsi_do_tmf(s, req); - } - - } else if (req->req.tmf.type == VIRTIO_SCSI_T_AN_QUERY || - req->req.tmf.type == VIRTIO_SCSI_T_AN_SUBSCRIBE) { - if (virtio_scsi_parse_req(req, sizeof(VirtIOSCSICtrlANReq), - sizeof(VirtIOSCSICtrlANResp)) < 0) { - virtio_scsi_bad_req(); - } else { - req->resp.an.event_actual = 0; - req->resp.an.response = VIRTIO_SCSI_S_OK; - } + } else if (req->req.tmf.type == VIRTIO_SCSI_T_AN_QUERY || + req->req.tmf.type == VIRTIO_SCSI_T_AN_SUBSCRIBE) { + if (virtio_scsi_parse_req(req, sizeof(VirtIOSCSICtrlANReq), + sizeof(VirtIOSCSICtrlANResp)) < 0) { + virtio_scsi_bad_req(); + } else { + req->resp.an.event_actual = 0; + req->resp.an.response = VIRTIO_SCSI_S_OK; } - virtio_scsi_complete_req(req); + } + virtio_scsi_complete_req(req); +} + +static void virtio_scsi_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) +{ + VirtIOSCSI *s = (VirtIOSCSI *)vdev; + VirtIOSCSIReq *req; + + while ((req = virtio_scsi_pop_req(s, vq))) { + virtio_scsi_handle_ctrl_req(s, req); } } diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h index 7349936..fcd45e7 100644 --- a/include/hw/virtio/virtio-scsi.h +++ b/include/hw/virtio/virtio-scsi.h @@ -217,6 +217,7 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp, HandleOutput cmd); void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp); +void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req); void virtio_scsi_handle_cmd_req(VirtIOSCSI *s, VirtIOSCSIReq *req); #endif /* _QEMU_VIRTIO_SCSI_H */ -- 2.0.3