aboutsummaryrefslogtreecommitdiffstats
path: root/fpga/usrp3/lib
diff options
context:
space:
mode:
Diffstat (limited to 'fpga/usrp3/lib')
-rw-r--r--fpga/usrp3/lib/rfnoc/xport/chdr_xport_adapter_generic.v81
-rw-r--r--fpga/usrp3/lib/rfnoc/xport/eth_ipv4_chdr64_adapter.v64
-rw-r--r--fpga/usrp3/lib/rfnoc/xport/liberio_chdr64_adapter.v64
3 files changed, 138 insertions, 71 deletions
diff --git a/fpga/usrp3/lib/rfnoc/xport/chdr_xport_adapter_generic.v b/fpga/usrp3/lib/rfnoc/xport/chdr_xport_adapter_generic.v
index 6de298530..8ef7adc39 100644
--- a/fpga/usrp3/lib/rfnoc/xport/chdr_xport_adapter_generic.v
+++ b/fpga/usrp3/lib/rfnoc/xport/chdr_xport_adapter_generic.v
@@ -5,7 +5,7 @@
//
// Module: chdr_xport_adapter_generic
// Description: A generic transport adapter module that can be used in
-// a veriety of transports. It does the following:
+// a variety of transports. It does the following:
// - Exposes a configuration port for mgmt packets to configure the node
// - Implements a return-address map for packets with metadata other than
// the CHDR. Additional metadata can be passed as a tuser to this module
@@ -20,8 +20,10 @@
// - CHDR_W: Width of the CHDR bus in bits
// - USER_W: Width of the tuser bus in bits
// - TBL_SIZE: Log2 of the depth of the routing table
-// - NODE_TYPE: The node type to return for a node-info discovery
+// - NODE_SUBTYPE: The node subtype to return for a node-info discovery
// - NODE_INST: The node type to return for a node-info discovery
+// - ALLOW_DISC: Controls if the external transport network should be
+// discoverable by management packets from RFNoC side.
//
// Signals:
// - device_id : The ID of the device that has instantiated this module
@@ -38,7 +40,8 @@ module chdr_xport_adapter_generic #(
parameter USER_W = 16,
parameter TBL_SIZE = 6,
parameter [7:0] NODE_SUBTYPE = 8'd0,
- parameter NODE_INST = 0
+ parameter NODE_INST = 0,
+ parameter ALLOW_DISC = 1
)(
// Clock and reset
input wire clk,
@@ -100,7 +103,7 @@ module chdr_xport_adapter_generic #(
.DATA_W(CHDR_W), .USER_W(USER_W), .STAGES_EN(SWAP_LANES), .DYNAMIC(0)
) xport_in_swap_i (
.clk(clk), .rst(rst),
- .s_axis_tdata(s_axis_xport_tdata), .s_axis_tswap('h0),
+ .s_axis_tdata(s_axis_xport_tdata), .s_axis_tswap({$clog2(CHDR_W)-1{1'b0}}),
.s_axis_tuser(s_axis_xport_tuser), .s_axis_tlast(s_axis_xport_tlast),
.s_axis_tvalid(s_axis_xport_tvalid), .s_axis_tready(s_axis_xport_tready),
.m_axis_tdata (i_xport_tdata), .m_axis_tuser(i_xport_tuser),
@@ -112,7 +115,7 @@ module chdr_xport_adapter_generic #(
.DATA_W(CHDR_W), .USER_W(USER_W), .STAGES_EN(SWAP_LANES), .DYNAMIC(0)
) xport_out_swap_i (
.clk(clk), .rst(rst),
- .s_axis_tdata(o_xport_tdata), .s_axis_tswap('h0),
+ .s_axis_tdata(o_xport_tdata), .s_axis_tswap({$clog2(CHDR_W)-1{1'b0}}),
.s_axis_tuser(o_xport_tuser), .s_axis_tlast(o_xport_tlast),
.s_axis_tvalid(o_xport_tvalid), .s_axis_tready(o_xport_tready),
.m_axis_tdata (m_axis_xport_tdata), .m_axis_tuser (m_axis_xport_tuser),
@@ -142,12 +145,16 @@ module chdr_xport_adapter_generic #(
wire lookup_stb, lookup_done_stb, lookup_result_match;
wire [15:0] lookup_epid;
wire [USER_W-1:0] lookup_result_value;
+ wire [47:0] node_info;
+
+ assign node_info = chdr_mgmt_build_node_info({ 10'h0, NODE_SUBTYPE},
+ NODE_INST, NODE_TYPE_TRANSPORT, device_id);
chdr_mgmt_pkt_handler #(
.PROTOVER(PROTOVER), .CHDR_W(CHDR_W), .USER_W(USER_W), .MGMT_ONLY(0)
) mgmt_ep_i (
.clk(clk), .rst(rst),
- .node_info(chdr_mgmt_build_node_info({10'h0, NODE_SUBTYPE}, NODE_INST, NODE_TYPE_TRANSPORT, device_id)),
+ .node_info(node_info),
.s_axis_chdr_tdata(i_xport_tdata), .s_axis_chdr_tlast(i_xport_tlast),
.s_axis_chdr_tvalid(i_xport_tvalid), .s_axis_chdr_tready(i_xport_tready),
.s_axis_chdr_tuser(i_xport_tuser),
@@ -188,10 +195,62 @@ module chdr_xport_adapter_generic #(
end
// ---------------------------------------------------
+ // Optional management filter
+ // ---------------------------------------------------
+
+ wire [CHDR_W-1:0] f2m_tdata;
+ wire f2m_tlast;
+ wire f2m_tvalid;
+ wire f2m_tready;
+
+ if (ALLOW_DISC) begin : gen_no_mgmt_filter
+ // Allow all packets to pass through
+ assign f2m_tdata = s_axis_rfnoc_tdata;
+ assign f2m_tlast = s_axis_rfnoc_tlast;
+ assign f2m_tvalid = s_axis_rfnoc_tvalid;
+ assign s_axis_rfnoc_tready = f2m_tready;
+
+ end else begin : gen_mgmt_filter
+ // Disallow forwarding of management discovery packets from RFNoC to the
+ // transport interface for transports that don't support them.
+ //vhook_nowarn unused_*
+ wire [CHDR_W-1:0] unused_tdata;
+ wire unused_tlast, unused_tvalid, unused_tready;
+ wire [CHDR_W-1:0] s_header;
+ wire dispose_pkt;
+
+ // We identify discovery packets by the fact that they are management
+ // packets and that they use the null EPID as the destination.
+ assign dispose_pkt = (chdr_get_pkt_type(s_header[63:0]) == CHDR_PKT_TYPE_MGMT) &&
+ (chdr_get_dst_epid(s_header[63:0]) == NULL_EPID);
+
+ axi_demux #(
+ .WIDTH (CHDR_W),
+ .SIZE (2),
+ .PRE_FIFO_SIZE (0),
+ .POST_FIFO_SIZE (1)
+ ) axi_demux_mgmt_filter_i (
+ .clk (clk),
+ .reset (rst),
+ .clear (1'b0),
+ .header (s_header),
+ .dest (dispose_pkt),
+ .i_tdata (s_axis_rfnoc_tdata),
+ .i_tlast (s_axis_rfnoc_tlast),
+ .i_tvalid (s_axis_rfnoc_tvalid),
+ .i_tready (s_axis_rfnoc_tready),
+ .o_tdata ({unused_tdata, f2m_tdata}),
+ .o_tlast ({unused_tlast, f2m_tlast}),
+ .o_tvalid ({unused_tvalid, f2m_tvalid}),
+ .o_tready ({1'b1, f2m_tready})
+ );
+ end
+
+ // ---------------------------------------------------
// MUX and DEMUX for return path
// ---------------------------------------------------
- wire [USER_W-1:0] dummy_tuser;
+ wire [USER_W-1:0] unused_tuser;
axis_switch #(
.DATA_W(CHDR_W+USER_W), .DEST_W(1), .IN_PORTS(1), .OUT_PORTS(2), .PIPELINE(0)
) rtn_demux_i (
@@ -199,7 +258,7 @@ module chdr_xport_adapter_generic #(
.s_axis_tdata({x2d_tuser, x2d_tdata}), .s_axis_alloc(1'b0),
.s_axis_tdest(x2d_tid == CHDR_MGMT_RETURN_TO_SRC ? 2'b01 : 2'b00),
.s_axis_tlast(x2d_tlast), .s_axis_tvalid(x2d_tvalid), .s_axis_tready(x2d_tready),
- .m_axis_tdata({x2x_tuser, x2x_tdata, dummy_tuser, m_axis_rfnoc_tdata}),
+ .m_axis_tdata({x2x_tuser, x2x_tdata, unused_tuser, m_axis_rfnoc_tdata}),
.m_axis_tdest(/* unused */),
.m_axis_tlast({x2x_tlast, m_axis_rfnoc_tlast}),
.m_axis_tvalid({x2x_tvalid, m_axis_rfnoc_tvalid}),
@@ -210,9 +269,9 @@ module chdr_xport_adapter_generic #(
.WIDTH(CHDR_W+USER_W+1), .SIZE(2), .PRE_FIFO_SIZE(0), .POST_FIFO_SIZE(0)
) rtn_mux_i (
.clk(clk), .reset(rst), .clear(1'b0),
- .i_tdata({1'b1, x2x_tuser, x2x_tdata, 1'b0, {USER_W{1'b0}}, s_axis_rfnoc_tdata}),
- .i_tlast({x2x_tlast, s_axis_rfnoc_tlast}),
- .i_tvalid({x2x_tvalid, s_axis_rfnoc_tvalid}), .i_tready({x2x_tready, s_axis_rfnoc_tready}),
+ .i_tdata({1'b1, x2x_tuser, x2x_tdata, 1'b0, {USER_W{1'b0}}, f2m_tdata}),
+ .i_tlast({x2x_tlast, f2m_tlast}),
+ .i_tvalid({x2x_tvalid, f2m_tvalid}), .i_tready({x2x_tready, f2m_tready}),
.o_tdata({m2x_tdest, m2x_tuser, m2x_tdata}), .o_tlast(m2x_tlast),
.o_tvalid(m2x_tvalid), .o_tready(m2x_tready)
);
diff --git a/fpga/usrp3/lib/rfnoc/xport/eth_ipv4_chdr64_adapter.v b/fpga/usrp3/lib/rfnoc/xport/eth_ipv4_chdr64_adapter.v
index 66c1b521e..f05c211b1 100644
--- a/fpga/usrp3/lib/rfnoc/xport/eth_ipv4_chdr64_adapter.v
+++ b/fpga/usrp3/lib/rfnoc/xport/eth_ipv4_chdr64_adapter.v
@@ -156,37 +156,41 @@ module eth_ipv4_chdr64_adapter #(
wire e2c_fifo_tlast, e2c_fifo_tvalid, e2c_fifo_tready;
chdr_xport_adapter_generic #(
- .PROTOVER(PROTOVER), .CHDR_W(64),
- .USER_W(96), .TBL_SIZE(RT_TBL_SIZE),
- .NODE_SUBTYPE(NODE_SUBTYPE_XPORT_IPV4_CHDR64), .NODE_INST(NODE_INST)
+ .PROTOVER (PROTOVER),
+ .CHDR_W (64),
+ .USER_W (96),
+ .TBL_SIZE (RT_TBL_SIZE),
+ .NODE_SUBTYPE (NODE_SUBTYPE_XPORT_IPV4_CHDR64),
+ .NODE_INST (NODE_INST),
+ .ALLOW_DISC (1)
) xport_adapter_gen_i (
- .clk (clk),
- .rst (rst),
- .device_id (device_id),
- .s_axis_xport_tdata (e2x_chdr_tdata),
- .s_axis_xport_tuser (e2x_chdr_tuser),
- .s_axis_xport_tlast (e2x_chdr_tlast),
- .s_axis_xport_tvalid(e2x_chdr_tvalid),
- .s_axis_xport_tready(e2x_chdr_tready),
- .m_axis_xport_tdata (x2e_chdr_tdata),
- .m_axis_xport_tuser (x2e_chdr_tuser),
- .m_axis_xport_tlast (x2e_chdr_tlast),
- .m_axis_xport_tvalid(x2e_chdr_tvalid),
- .m_axis_xport_tready(x2e_chdr_tready),
- .s_axis_rfnoc_tdata (s_chdr_tdata),
- .s_axis_rfnoc_tlast (s_chdr_tlast),
- .s_axis_rfnoc_tvalid(s_chdr_tvalid),
- .s_axis_rfnoc_tready(s_chdr_tready),
- .m_axis_rfnoc_tdata (e2x_fifo_tdata),
- .m_axis_rfnoc_tlast (e2x_fifo_tlast),
- .m_axis_rfnoc_tvalid(e2x_fifo_tvalid),
- .m_axis_rfnoc_tready(e2x_fifo_tready),
- .ctrlport_req_wr (/* unused */),
- .ctrlport_req_rd (/* unused */),
- .ctrlport_req_addr (/* unused */),
- .ctrlport_req_data (/* unused */),
- .ctrlport_resp_ack (/* unused */),
- .ctrlport_resp_data (/* unused */)
+ .clk (clk),
+ .rst (rst),
+ .device_id (device_id),
+ .s_axis_xport_tdata (e2x_chdr_tdata),
+ .s_axis_xport_tuser (e2x_chdr_tuser),
+ .s_axis_xport_tlast (e2x_chdr_tlast),
+ .s_axis_xport_tvalid (e2x_chdr_tvalid),
+ .s_axis_xport_tready (e2x_chdr_tready),
+ .m_axis_xport_tdata (x2e_chdr_tdata),
+ .m_axis_xport_tuser (x2e_chdr_tuser),
+ .m_axis_xport_tlast (x2e_chdr_tlast),
+ .m_axis_xport_tvalid (x2e_chdr_tvalid),
+ .m_axis_xport_tready (x2e_chdr_tready),
+ .s_axis_rfnoc_tdata (s_chdr_tdata),
+ .s_axis_rfnoc_tlast (s_chdr_tlast),
+ .s_axis_rfnoc_tvalid (s_chdr_tvalid),
+ .s_axis_rfnoc_tready (s_chdr_tready),
+ .m_axis_rfnoc_tdata (e2x_fifo_tdata),
+ .m_axis_rfnoc_tlast (e2x_fifo_tlast),
+ .m_axis_rfnoc_tvalid (e2x_fifo_tvalid),
+ .m_axis_rfnoc_tready (e2x_fifo_tready),
+ .ctrlport_req_wr (/* unused */),
+ .ctrlport_req_rd (/* unused */),
+ .ctrlport_req_addr (/* unused */),
+ .ctrlport_req_data (/* unused */),
+ .ctrlport_resp_ack (/* unused */),
+ .ctrlport_resp_data (/* unused */)
);
generate
diff --git a/fpga/usrp3/lib/rfnoc/xport/liberio_chdr64_adapter.v b/fpga/usrp3/lib/rfnoc/xport/liberio_chdr64_adapter.v
index 2800c46bb..2fff4b0d0 100644
--- a/fpga/usrp3/lib/rfnoc/xport/liberio_chdr64_adapter.v
+++ b/fpga/usrp3/lib/rfnoc/xport/liberio_chdr64_adapter.v
@@ -67,37 +67,41 @@ module liberio_chdr64_adapter #(
wire [DMA_ID_WIDTH-1:0] m_axis_xport_tuser;
chdr_xport_adapter_generic #(
- .PROTOVER(PROTOVER), .CHDR_W(64),
- .USER_W(DMA_ID_WIDTH), .TBL_SIZE(RT_TBL_SIZE),
- .NODE_SUBTYPE(NODE_SUBTYPE_XPORT_LIBERIO_CHDR64), .NODE_INST(NODE_INST)
+ .PROTOVER (PROTOVER),
+ .CHDR_W (64),
+ .USER_W (DMA_ID_WIDTH),
+ .TBL_SIZE (RT_TBL_SIZE),
+ .NODE_SUBTYPE (NODE_SUBTYPE_XPORT_LIBERIO_CHDR64),
+ .NODE_INST (NODE_INST),
+ .ALLOW_DISC (0)
) xport_adapter_gen_i (
- .clk (clk),
- .rst (rst),
- .device_id (device_id),
- .s_axis_xport_tdata (s_dma_tdata),
- .s_axis_xport_tuser (s_dma_tuser),
- .s_axis_xport_tlast (s_dma_tlast),
- .s_axis_xport_tvalid(s_dma_tvalid),
- .s_axis_xport_tready(s_dma_tready),
- .m_axis_xport_tdata (m_dma_tdata),
- .m_axis_xport_tuser (m_axis_xport_tuser),
- .m_axis_xport_tlast (m_dma_tlast),
- .m_axis_xport_tvalid(m_dma_tvalid),
- .m_axis_xport_tready(m_dma_tready),
- .s_axis_rfnoc_tdata (s_chdr_tdata),
- .s_axis_rfnoc_tlast (s_chdr_tlast),
- .s_axis_rfnoc_tvalid(s_chdr_tvalid),
- .s_axis_rfnoc_tready(s_chdr_tready),
- .m_axis_rfnoc_tdata (m_chdr_tdata),
- .m_axis_rfnoc_tlast (m_chdr_tlast),
- .m_axis_rfnoc_tvalid(m_chdr_tvalid),
- .m_axis_rfnoc_tready(m_chdr_tready),
- .ctrlport_req_wr (/* unused */),
- .ctrlport_req_rd (/* unused */),
- .ctrlport_req_addr (/* unused */),
- .ctrlport_req_data (/* unused */),
- .ctrlport_resp_ack (/* unused */ 1'b0),
- .ctrlport_resp_data (/* unused */ 32'd0)
+ .clk (clk),
+ .rst (rst),
+ .device_id (device_id),
+ .s_axis_xport_tdata (s_dma_tdata),
+ .s_axis_xport_tuser (s_dma_tuser),
+ .s_axis_xport_tlast (s_dma_tlast),
+ .s_axis_xport_tvalid (s_dma_tvalid),
+ .s_axis_xport_tready (s_dma_tready),
+ .m_axis_xport_tdata (m_dma_tdata),
+ .m_axis_xport_tuser (m_axis_xport_tuser),
+ .m_axis_xport_tlast (m_dma_tlast),
+ .m_axis_xport_tvalid (m_dma_tvalid),
+ .m_axis_xport_tready (m_dma_tready),
+ .s_axis_rfnoc_tdata (s_chdr_tdata),
+ .s_axis_rfnoc_tlast (s_chdr_tlast),
+ .s_axis_rfnoc_tvalid (s_chdr_tvalid),
+ .s_axis_rfnoc_tready (s_chdr_tready),
+ .m_axis_rfnoc_tdata (m_chdr_tdata),
+ .m_axis_rfnoc_tlast (m_chdr_tlast),
+ .m_axis_rfnoc_tvalid (m_chdr_tvalid),
+ .m_axis_rfnoc_tready (m_chdr_tready),
+ .ctrlport_req_wr (/* unused */),
+ .ctrlport_req_rd (/* unused */),
+ .ctrlport_req_addr (/* unused */),
+ .ctrlport_req_data (/* unused */),
+ .ctrlport_resp_ack (/* unused */ 1'b0),
+ .ctrlport_resp_data (/* unused */ 32'd0)
);
// Ensure tdest does not change for entire packet
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-04 03:23:38 +0000