[ovs-dev] [PATCH vlan-maint] ofproto: Preserve in_port across trips through the datapath.
Justin Pettit
jpettit at nicira.com
Tue Jul 10 22:11:11 UTC 2012
Looks good.
--Justin
On Jul 10, 2012, at 9:50 AM, Ben Pfaff wrote:
> When a "packet out" sent a packet to the datapath and then the datapath
> sent the packet back via ODP_ACTION_ATTR_CONTROLLER, the in_port included
> in the "packet out" was lost (it became OFPP_LOCAL) because the datapath's
> "execute" operation doesn't accept an in_port.
>
> This commit fixes the problem by including the in_port in the userdata
> argument to ODP_ACTION_ATTR_CONTROLLER.
>
> NICS-15.
> Reported-by: Zoltan Kiss <zoltan.kiss at citrix.com>
> CC: David Tsai <dtsai at nicira.com>
> Signed-off-by: Ben Pfaff <blp at nicira.com>
> ---
> Apologies if you receive multiple copies of this patch. This
> version adds a CC to David Tsai.
>
> AUTHORS | 1 +
> ofproto/ofproto.c | 6 ++++--
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/AUTHORS b/AUTHORS
> index 84cb387..9033908 100644
> --- a/AUTHORS
> +++ b/AUTHORS
> @@ -80,6 +80,7 @@ Takayuki HAMA t-hama at cb.jp.nec.com
> Teemu Koponen koponen at nicira.com
> Vishal Swarankar vishal.swarnkar at gmail.com
> Yongqiang Liu liuyq7809 at gmail.com
> +Zoltan Kiss zoltan.kiss at citrix.com
> kk yap yapkke at stanford.edu
>
> Thanks to all Open vSwitch contributors. If you are not listed above
> diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
> index 37e2ad9..975e434 100644
> --- a/ofproto/ofproto.c
> +++ b/ofproto/ofproto.c
> @@ -2752,7 +2752,8 @@ xlate_output_action__(struct action_xlate_ctx *ctx,
> &ctx->nf_output_iface, ctx->odp_actions);
> break;
> case OFPP_CONTROLLER:
> - nl_msg_put_u64(ctx->odp_actions, ODP_ACTION_ATTR_CONTROLLER, max_len);
> + nl_msg_put_u64(ctx->odp_actions, ODP_ACTION_ATTR_CONTROLLER,
> + max_len | (ctx->flow.in_port << 16));
> break;
> case OFPP_LOCAL:
> add_output_action(ctx, ODPP_LOCAL);
> @@ -4463,6 +4464,7 @@ handle_upcall(struct ofproto *p, struct dpif_upcall *upcall)
> case DPIF_UC_ACTION:
> COVERAGE_INC(ofproto_ctlr_action);
> odp_flow_key_to_flow(upcall->key, upcall->key_len, &flow);
> + flow.in_port = upcall->userdata >> 16;
> send_packet_in(p, upcall, &flow, false);
> break;
>
> @@ -4902,7 +4904,7 @@ schedule_packet_in(struct ofconn *ofconn, struct dpif_upcall *upcall,
> send_len = MIN(send_len, ofconn->miss_send_len);
> }
> if (upcall->type == DPIF_UC_ACTION) {
> - send_len = MIN(send_len, upcall->userdata);
> + send_len = MIN(send_len, upcall->userdata & 0xffff);
> }
>
> /* Copy or steal buffer for OFPT_PACKET_IN. */
> --
> 1.7.2.5
>
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