From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LKzlS-0007sD-RC for qemu-devel@nongnu.org; Thu, 08 Jan 2009 13:37:54 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LKzlR-0007rd-A8 for qemu-devel@nongnu.org; Thu, 08 Jan 2009 13:37:54 -0500 Received: from [199.232.76.173] (port=59066 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LKzlR-0007ra-2l for qemu-devel@nongnu.org; Thu, 08 Jan 2009 13:37:53 -0500 Received: from mail23.svc.cra.dublin.eircom.net ([159.134.118.145]:35228) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1LKzlQ-00063p-MN for qemu-devel@nongnu.org; Thu, 08 Jan 2009 13:37:52 -0500 From: Mark McLoughlin Date: Thu, 8 Jan 2009 18:37:49 +0000 Message-Id: <1231439870-25692-3-git-send-email-markmc@redhat.com> In-Reply-To: <1231439870-25692-2-git-send-email-markmc@redhat.com> References: <1231439854.25753.2.camel@localhost.localdomain> <1231439870-25692-1-git-send-email-markmc@redhat.com> <1231439870-25692-2-git-send-email-markmc@redhat.com> Subject: [Qemu-devel] [PATCH 3/4] 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 , 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 09cb96a..ccf9bc0 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) { @@ -1073,6 +1088,7 @@ pci_e1000_init(PCIBus *bus, NICInfo *nd, int devfn) d->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name, e1000_receive, e1000_can_receive, d); + d->vc->link_status_changed = e1000_set_link_status; qemu_format_nic_info_str(d->vc, d->nd->macaddr); -- 1.6.0.6