From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LA0HC-0008OQ-Eb for qemu-devel@nongnu.org; Tue, 09 Dec 2008 05:57:14 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LA0HB-0008Na-6G for qemu-devel@nongnu.org; Tue, 09 Dec 2008 05:57:13 -0500 Received: from [199.232.76.173] (port=39198 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LA0HB-0008NO-2U for qemu-devel@nongnu.org; Tue, 09 Dec 2008 05:57:13 -0500 Received: from mail09.svc.cra.dublin.eircom.net ([159.134.118.25]:34161) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1LA0HA-0006Jx-Dp for qemu-devel@nongnu.org; Tue, 09 Dec 2008 05:57:12 -0500 From: Mark McLoughlin Date: Tue, 9 Dec 2008 10:55:43 +0000 Message-Id: <1228820143-23580-5-git-send-email-markmc@redhat.com> In-Reply-To: <1228820143-23580-4-git-send-email-markmc@redhat.com> References: <> <1228820143-23580-1-git-send-email-markmc@redhat.com> <1228820143-23580-2-git-send-email-markmc@redhat.com> <1228820143-23580-3-git-send-email-markmc@redhat.com> <1228820143-23580-4-git-send-email-markmc@redhat.com> Subject: [Qemu-devel] [PATCH 4/4] Implement e1000 link status Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: Mark McLoughlin , Rusty Russell , qemu-devel@nongnu.org On link up or down we set the E1000_STATUS_LU ("link up") bit in the status register and set the E1000_ICR_LSC ("link status changed") bit in the interrupt cause register before interrupting the guest. Signed-off-by: Mark McLoughlin --- hw/e1000.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/hw/e1000.c b/hw/e1000.c index f07936f..c541e36 100644 --- a/hw/e1000.c +++ b/hw/e1000.c @@ -570,6 +570,21 @@ receive_filter(E1000State *s, const uint8_t *buf, int size) return 0; } +static void +e1000_set_link_status(VLANClientState *vc) +{ + E1000State *s = vc->opaque; + uint32_t old_status = s->mac_reg[STATUS]; + + if (vc->link_down) + s->mac_reg[STATUS] &= ~E1000_STATUS_LU; + else + s->mac_reg[STATUS] |= E1000_STATUS_LU; + + if (s->mac_reg[STATUS] != old_status) + set_ics(s, 0, E1000_ICR_LSC); +} + static int e1000_can_receive(void *opaque) { @@ -1061,6 +1076,7 @@ pci_e1000_init(PCIBus *bus, NICInfo *nd, int devfn) d->vc = qemu_new_vlan_client(nd->vlan, e1000_receive, e1000_can_receive, d); + d->vc->link_status_changed = e1000_set_link_status; snprintf(d->vc->info_str, sizeof(d->vc->info_str), "%s macaddr=%02x:%02x:%02x:%02x:%02x:%02x", info_str, -- 1.5.4.3