Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 412 deletions

diff --git a/qemu/hw/net/xen_nic.c b/qemu/hw/net/xen_nic.c
deleted file mode 100644
index 7281730d9..000000000
--- a/qemu/hw/net/xen_nic.c
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- *  xen paravirt network card backend
- *
- *  (c) Gerd Hoffmann <kraxel@redhat.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; under version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- *  Contributions after 2012-01-13 are licensed under the terms of the
- *  GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-
-#include "hw/hw.h"
-#include "net/net.h"
-#include "net/checksum.h"
-#include "net/util.h"
-#include "hw/xen/xen_backend.h"
-
-#include <xen/io/netif.h>
-
-/* ------------------------------------------------------------- */
-
-struct XenNetDev {
-    struct XenDevice      xendev;  /* must be first */
-    char                  *mac;
-    int                   tx_work;
-    int                   tx_ring_ref;
-    int                   rx_ring_ref;
-    struct netif_tx_sring *txs;
-    struct netif_rx_sring *rxs;
-    netif_tx_back_ring_t  tx_ring;
-    netif_rx_back_ring_t  rx_ring;
-    NICConf               conf;
-    NICState              *nic;
-};
-
-/* ------------------------------------------------------------- */
-
-static void net_tx_response(struct XenNetDev *netdev, netif_tx_request_t *txp, int8_t st)
-{
-    RING_IDX i = netdev->tx_ring.rsp_prod_pvt;
-    netif_tx_response_t *resp;
-    int notify;
-
-    resp = RING_GET_RESPONSE(&netdev->tx_ring, i);
-    resp->id     = txp->id;
-    resp->status = st;
-
-#if 0
-    if (txp->flags & NETTXF_extra_info) {
-        RING_GET_RESPONSE(&netdev->tx_ring, ++i)->status = NETIF_RSP_NULL;
-    }
-#endif
-
-    netdev->tx_ring.rsp_prod_pvt = ++i;
-    RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->tx_ring, notify);
-    if (notify) {
-        xen_be_send_notify(&netdev->xendev);
-    }
-
-    if (i == netdev->tx_ring.req_cons) {
-        int more_to_do;
-        RING_FINAL_CHECK_FOR_REQUESTS(&netdev->tx_ring, more_to_do);
-        if (more_to_do) {
-            netdev->tx_work++;
-        }
-    }
-}
-
-static void net_tx_error(struct XenNetDev *netdev, netif_tx_request_t *txp, RING_IDX end)
-{
-#if 0
-    /*
-     * Hmm, why netback fails everything in the ring?
-     * Should we do that even when not supporting SG and TSO?
-     */
-    RING_IDX cons = netdev->tx_ring.req_cons;
-
-    do {
-        make_tx_response(netif, txp, NETIF_RSP_ERROR);
-        if (cons >= end) {
-            break;
-        }
-        txp = RING_GET_REQUEST(&netdev->tx_ring, cons++);
-    } while (1);
-    netdev->tx_ring.req_cons = cons;
-    netif_schedule_work(netif);
-    netif_put(netif);
-#else
-    net_tx_response(netdev, txp, NETIF_RSP_ERROR);
-#endif
-}
-
-static void net_tx_packets(struct XenNetDev *netdev)
-{
-    netif_tx_request_t txreq;
-    RING_IDX rc, rp;
-    void *page;
-    void *tmpbuf = NULL;
-
-    for (;;) {
-        rc = netdev->tx_ring.req_cons;
-        rp = netdev->tx_ring.sring->req_prod;
-        xen_rmb(); /* Ensure we see queued requests up to 'rp'. */
-
-        while ((rc != rp)) {
-            if (RING_REQUEST_CONS_OVERFLOW(&netdev->tx_ring, rc)) {
-                break;
-            }
-            memcpy(&txreq, RING_GET_REQUEST(&netdev->tx_ring, rc), sizeof(txreq));
-            netdev->tx_ring.req_cons = ++rc;
-
-#if 1
-            /* should not happen in theory, we don't announce the *
-             * feature-{sg,gso,whatelse} flags in xenstore (yet?) */
-            if (txreq.flags & NETTXF_extra_info) {
-                xen_be_printf(&netdev->xendev, 0, "FIXME: extra info flag\n");
-                net_tx_error(netdev, &txreq, rc);
-                continue;
-            }
-            if (txreq.flags & NETTXF_more_data) {
-                xen_be_printf(&netdev->xendev, 0, "FIXME: more data flag\n");
-                net_tx_error(netdev, &txreq, rc);
-                continue;
-            }
-#endif
-
-            if (txreq.size < 14) {
-                xen_be_printf(&netdev->xendev, 0, "bad packet size: %d\n", txreq.size);
-                net_tx_error(netdev, &txreq, rc);
-                continue;
-            }
-
-            if ((txreq.offset + txreq.size) > XC_PAGE_SIZE) {
-                xen_be_printf(&netdev->xendev, 0, "error: page crossing\n");
-                net_tx_error(netdev, &txreq, rc);
-                continue;
-            }
-
-            xen_be_printf(&netdev->xendev, 3, "tx packet ref %d, off %d, len %d, flags 0x%x%s%s%s%s\n",
-                          txreq.gref, txreq.offset, txreq.size, txreq.flags,
-                          (txreq.flags & NETTXF_csum_blank)     ? " csum_blank"     : "",
-                          (txreq.flags & NETTXF_data_validated) ? " data_validated" : "",
-                          (txreq.flags & NETTXF_more_data)      ? " more_data"      : "",
-                          (txreq.flags & NETTXF_extra_info)     ? " extra_info"     : "");
-
-            page = xengnttab_map_grant_ref(netdev->xendev.gnttabdev,
-                                           netdev->xendev.dom,
-                                           txreq.gref, PROT_READ);
-            if (page == NULL) {
-                xen_be_printf(&netdev->xendev, 0, "error: tx gref dereference failed (%d)\n",
-                              txreq.gref);
-                net_tx_error(netdev, &txreq, rc);
-                continue;
-            }
-            if (txreq.flags & NETTXF_csum_blank) {
-                /* have read-only mapping -> can't fill checksum in-place */
-                if (!tmpbuf) {
-                    tmpbuf = g_malloc(XC_PAGE_SIZE);
-                }
-                memcpy(tmpbuf, page + txreq.offset, txreq.size);
-                net_checksum_calculate(tmpbuf, txreq.size);
-                qemu_send_packet(qemu_get_queue(netdev->nic), tmpbuf,
-                                 txreq.size);
-            } else {
-                qemu_send_packet(qemu_get_queue(netdev->nic),
-                                 page + txreq.offset, txreq.size);
-            }
-            xengnttab_unmap(netdev->xendev.gnttabdev, page, 1);
-            net_tx_response(netdev, &txreq, NETIF_RSP_OKAY);
-        }
-        if (!netdev->tx_work) {
-            break;
-        }
-        netdev->tx_work = 0;
-    }
-    g_free(tmpbuf);
-}
-
-/* ------------------------------------------------------------- */
-
-static void net_rx_response(struct XenNetDev *netdev,
-                            netif_rx_request_t *req, int8_t st,
-                            uint16_t offset, uint16_t size,
-                            uint16_t flags)
-{
-    RING_IDX i = netdev->rx_ring.rsp_prod_pvt;
-    netif_rx_response_t *resp;
-    int notify;
-
-    resp = RING_GET_RESPONSE(&netdev->rx_ring, i);
-    resp->offset     = offset;
-    resp->flags      = flags;
-    resp->id         = req->id;
-    resp->status     = (int16_t)size;
-    if (st < 0) {
-        resp->status = (int16_t)st;
-    }
-
-    xen_be_printf(&netdev->xendev, 3, "rx response: idx %d, status %d, flags 0x%x\n",
-                  i, resp->status, resp->flags);
-
-    netdev->rx_ring.rsp_prod_pvt = ++i;
-    RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->rx_ring, notify);
-    if (notify) {
-        xen_be_send_notify(&netdev->xendev);
-    }
-}
-
-#define NET_IP_ALIGN 2
-
-static ssize_t net_rx_packet(NetClientState *nc, const uint8_t *buf, size_t size)
-{
-    struct XenNetDev *netdev = qemu_get_nic_opaque(nc);
-    netif_rx_request_t rxreq;
-    RING_IDX rc, rp;
-    void *page;
-
-    if (netdev->xendev.be_state != XenbusStateConnected) {
-        return -1;
-    }
-
-    rc = netdev->rx_ring.req_cons;
-    rp = netdev->rx_ring.sring->req_prod;
-    xen_rmb(); /* Ensure we see queued requests up to 'rp'. */
-
-    if (rc == rp || RING_REQUEST_CONS_OVERFLOW(&netdev->rx_ring, rc)) {
-        return 0;
-    }
-    if (size > XC_PAGE_SIZE - NET_IP_ALIGN) {
-        xen_be_printf(&netdev->xendev, 0, "packet too big (%lu > %ld)",
-                      (unsigned long)size, XC_PAGE_SIZE - NET_IP_ALIGN);
-        return -1;
-    }
-
-    memcpy(&rxreq, RING_GET_REQUEST(&netdev->rx_ring, rc), sizeof(rxreq));
-    netdev->rx_ring.req_cons = ++rc;
-
-    page = xengnttab_map_grant_ref(netdev->xendev.gnttabdev,
-                                   netdev->xendev.dom,
-                                   rxreq.gref, PROT_WRITE);
-    if (page == NULL) {
-        xen_be_printf(&netdev->xendev, 0, "error: rx gref dereference failed (%d)\n",
-                      rxreq.gref);
-        net_rx_response(netdev, &rxreq, NETIF_RSP_ERROR, 0, 0, 0);
-        return -1;
-    }
-    memcpy(page + NET_IP_ALIGN, buf, size);
-    xengnttab_unmap(netdev->xendev.gnttabdev, page, 1);
-    net_rx_response(netdev, &rxreq, NETIF_RSP_OKAY, NET_IP_ALIGN, size, 0);
-
-    return size;
-}
-
-/* ------------------------------------------------------------- */
-
-static NetClientInfo net_xen_info = {
-    .type = NET_CLIENT_OPTIONS_KIND_NIC,
-    .size = sizeof(NICState),
-    .receive = net_rx_packet,
-};
-
-static int net_init(struct XenDevice *xendev)
-{
-    struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
-
-    /* read xenstore entries */
-    if (netdev->mac == NULL) {
-        netdev->mac = xenstore_read_be_str(&netdev->xendev, "mac");
-    }
-
-    /* do we have all we need? */
-    if (netdev->mac == NULL) {
-        return -1;
-    }
-
-    if (net_parse_macaddr(netdev->conf.macaddr.a, netdev->mac) < 0) {
-        return -1;
-    }
-
-    netdev->nic = qemu_new_nic(&net_xen_info, &netdev->conf,
-                               "xen", NULL, netdev);
-
-    snprintf(qemu_get_queue(netdev->nic)->info_str,
-             sizeof(qemu_get_queue(netdev->nic)->info_str),
-             "nic: xenbus vif macaddr=%s", netdev->mac);
-
-    /* fill info */
-    xenstore_write_be_int(&netdev->xendev, "feature-rx-copy", 1);
-    xenstore_write_be_int(&netdev->xendev, "feature-rx-flip", 0);
-
-    return 0;
-}
-
-static int net_connect(struct XenDevice *xendev)
-{
-    struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
-    int rx_copy;
-
-    if (xenstore_read_fe_int(&netdev->xendev, "tx-ring-ref",
-                             &netdev->tx_ring_ref) == -1) {
-        return -1;
-    }
-    if (xenstore_read_fe_int(&netdev->xendev, "rx-ring-ref",
-                             &netdev->rx_ring_ref) == -1) {
-        return 1;
-    }
-    if (xenstore_read_fe_int(&netdev->xendev, "event-channel",
-                             &netdev->xendev.remote_port) == -1) {
-        return -1;
-    }
-
-    if (xenstore_read_fe_int(&netdev->xendev, "request-rx-copy", &rx_copy) == -1) {
-        rx_copy = 0;
-    }
-    if (rx_copy == 0) {
-        xen_be_printf(&netdev->xendev, 0, "frontend doesn't support rx-copy.\n");
-        return -1;
-    }
-
-    netdev->txs = xengnttab_map_grant_ref(netdev->xendev.gnttabdev,
-                                          netdev->xendev.dom,
-                                          netdev->tx_ring_ref,
-                                          PROT_READ | PROT_WRITE);
-    if (!netdev->txs) {
-        return -1;
-    }
-    netdev->rxs = xengnttab_map_grant_ref(netdev->xendev.gnttabdev,
-                                          netdev->xendev.dom,
-                                          netdev->rx_ring_ref,
-                                          PROT_READ | PROT_WRITE);
-    if (!netdev->rxs) {
-        xengnttab_unmap(netdev->xendev.gnttabdev, netdev->txs, 1);
-        netdev->txs = NULL;
-        return -1;
-    }
-    BACK_RING_INIT(&netdev->tx_ring, netdev->txs, XC_PAGE_SIZE);
-    BACK_RING_INIT(&netdev->rx_ring, netdev->rxs, XC_PAGE_SIZE);
-
-    xen_be_bind_evtchn(&netdev->xendev);
-
-    xen_be_printf(&netdev->xendev, 1, "ok: tx-ring-ref %d, rx-ring-ref %d, "
-                  "remote port %d, local port %d\n",
-                  netdev->tx_ring_ref, netdev->rx_ring_ref,
-                  netdev->xendev.remote_port, netdev->xendev.local_port);
-
-    net_tx_packets(netdev);
-    return 0;
-}
-
-static void net_disconnect(struct XenDevice *xendev)
-{
-    struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
-
-    xen_be_unbind_evtchn(&netdev->xendev);
-
-    if (netdev->txs) {
-        xengnttab_unmap(netdev->xendev.gnttabdev, netdev->txs, 1);
-        netdev->txs = NULL;
-    }
-    if (netdev->rxs) {
-        xengnttab_unmap(netdev->xendev.gnttabdev, netdev->rxs, 1);
-        netdev->rxs = NULL;
-    }
-}
-
-static void net_event(struct XenDevice *xendev)
-{
-    struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
-    net_tx_packets(netdev);
-    qemu_flush_queued_packets(qemu_get_queue(netdev->nic));
-}
-
-static int net_free(struct XenDevice *xendev)
-{
-    struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
-
-    if (netdev->nic) {
-        qemu_del_nic(netdev->nic);
-        netdev->nic = NULL;
-    }
-    g_free(netdev->mac);
-    netdev->mac = NULL;
-    return 0;
-}
-
-/* ------------------------------------------------------------- */
-
-struct XenDevOps xen_netdev_ops = {
-    .size       = sizeof(struct XenNetDev),
-    .flags      = DEVOPS_FLAG_NEED_GNTDEV,
-    .init       = net_init,
-    .initialise    = net_connect,
-    .event      = net_event,
-    .disconnect = net_disconnect,
-    .free       = net_free,
-};