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fpga: e31x: Cleanup MTU parameters

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Original-commit: 55a1ef7e50d271459f44b98d55860bfb2bbe2d19
This commit is contained in:
Wade Fife
2022-09-01 14:41:55 -05:00
parent 919acb248f
commit 2f677eddda
2 changed files with 7 additions and 0 deletions
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top/e31x/e31x.v
+5
View File
@@ -152,6 +152,9 @@ module e31x (
CHDR_W_must_be_64_for_this_USRP(); CHDR_W_must_be_64_for_this_USRP();
end end
// Log base 2 of the maximum transmission unit (MTU) in bytes
localparam BYTE_MTU = $clog2(8192);
// Constants // Constants
localparam REG_AWIDTH = 14; // log2(0x4000) localparam REG_AWIDTH = 14; // log2(0x4000)
localparam REG_DWIDTH = 32; localparam REG_DWIDTH = 32;
@@ -421,6 +424,7 @@ module e31x (
.DWIDTH(REG_DWIDTH), .DWIDTH(REG_DWIDTH),
.AWIDTH(REG_AWIDTH), .AWIDTH(REG_AWIDTH),
.PORTNUM(8'd1), .PORTNUM(8'd1),
.BYTE_MTU(BYTE_MTU),
.RFNOC_PROTOVER(RFNOC_PROTOVER), .RFNOC_PROTOVER(RFNOC_PROTOVER),
.NODE_INST(0) .NODE_INST(0)
) eth_internal_i ( ) eth_internal_i (
@@ -866,6 +870,7 @@ module e31x (
.FP_GPIO_WIDTH(FP_GPIO_WIDTH), .FP_GPIO_WIDTH(FP_GPIO_WIDTH),
.DB_GPIO_WIDTH(DB_GPIO_WIDTH), .DB_GPIO_WIDTH(DB_GPIO_WIDTH),
.CHDR_W(CHDR_W), .CHDR_W(CHDR_W),
.BYTE_MTU(BYTE_MTU),
.RFNOC_PROTOVER(RFNOC_PROTOVER) .RFNOC_PROTOVER(RFNOC_PROTOVER)
) e31x_core_inst ( ) e31x_core_inst (
top/e31x/e31x_core.v
+2
View File
@@ -27,6 +27,7 @@ module e31x_core #(
parameter FP_GPIO_WIDTH = 8, // Front panel GPIO width parameter FP_GPIO_WIDTH = 8, // Front panel GPIO width
parameter DB_GPIO_WIDTH = 16, // Daughterboard GPIO width parameter DB_GPIO_WIDTH = 16, // Daughterboard GPIO width
parameter CHDR_W = 64, parameter CHDR_W = 64,
parameter BYTE_MTU = $clog2(8192),
parameter RFNOC_PROTOVER = {8'd1, 8'd0} parameter RFNOC_PROTOVER = {8'd1, 8'd0}
)( )(
// Clocks and resets // Clocks and resets
@@ -813,6 +814,7 @@ module e31x_core #(
rfnoc_image_core #( rfnoc_image_core #(
.CHDR_W (CHDR_W), .CHDR_W (CHDR_W),
.MTU (BYTE_MTU - $clog2(CHDR_W/8)),
.PROTOVER (RFNOC_PROTOVER) .PROTOVER (RFNOC_PROTOVER)
) rfnoc_image_core_i ( ) rfnoc_image_core_i (
.chdr_aclk (bus_clk ), .chdr_aclk (bus_clk ),