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Altera_Forum
Honored Contributor
16 years agoPCIe core MSI-X support
I have added MSI-X support to an implementation of the Altera PCIe core we're already testing in the lab. My understanding, is that with MSI-X enabled in the megawizard and my vector table offset se...
Altera_Forum
Honored Contributor
14 years agoDo You mean 3-DWord Header TLP and memory write request 32bit addr?
So how should packet look like if msix_Msg_Upper_Addr[msix_Number] is all zeroes? Like this - only two clk: assign Sig_Packet_Type_field = 8'h40; // 32bit addr assign Sig_Packet_Length_field = 10'b00_0000_0001; // 1 DWORD // LastBE = 4'h0, FirstBE = 4'hF Clk1: PCIe_data_out [63:0]<= {Requester_ID, 16'h00_0f, Sig_Packet_Type_field, 14'b0, Sig_Packet_Length_field}; Clk2: PCIe_data_out [63:0]<= {msix_Msg_Lower_Addr[msix_Number], Sig_Packet_Data_field [31:0]} Or like this – 3 clk: assign Sig_Packet_Type_field = 8'h40; // 32bit addr assign Sig_Packet_Length_field = 10'b00_0000_0001; // 1 DWORD // LastBE = 4'h0, FirstBE = 4'hF Clk1: PCIe_data_out [63:0]<= {Requester_ID, 16'h00_0f, Sig_Packet_Type_field, 14'b0, Sig_Packet_Length_field}; Clk2: PCIe_data_out [63:0]<= {msix_Msg_Lower_Addr[msix_Number],32'b0} Clk3: PCIe_data_out [63:0]<= {Sig_Packet_Data_field, 32'b0}; It seems to me that I tried already both variants but they don't work :( HELP! :) P.S. I checked msix_Msg_Upper_Addr is all 0! On 1st PC where MSI-X are working, I send 4DW header and msix_Msg_Upper_Addr still is all 0...