Add the linux device driver and netfpga files

This adds the device driver and netfpga files from the master thesis
(in Dutch) "Implementatie van de Recursive Internet Architecture op
een FPGA platform" by Alexander D'hoore.

1 files changed, 358 insertions, 0 deletions

diff --git a/netfpga10g/hdl/pcie_wrapper.vhd b/netfpga10g/hdl/pcie_wrapper.vhd
new file mode 100644
index 0000000..35c6047
--- /dev/null
+++ b/netfpga10g/hdl/pcie_wrapper.vhd
@@ -0,0 +1,358 @@
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+library unisim;
+use unisim.vcomponents.all;
+
+entity pcie_wrapper is port (
+        pcie_clk_p : in std_logic;
+        pcie_clk_n : in std_logic;
+        reset25 : in std_logic;
+
+        clk125 : out std_logic;
+        reset125 : out std_logic;
+
+        pci_exp_rxn : in std_logic_vector(7 downto 0);
+        pci_exp_rxp : in std_logic_vector(7 downto 0);
+        pci_exp_txn : out std_logic_vector(7 downto 0);
+        pci_exp_txp : out std_logic_vector(7 downto 0);
+
+        rx_frame : out std_logic_vector(63 downto 0);
+        rx_sof : out std_logic;
+        rx_eof : out std_logic;
+        rx_valid : out std_logic;
+
+        tx_frame : in std_logic_vector(63 downto 0);
+        tx_sof : in std_logic;
+        tx_eof : in std_logic;
+        tx_half : in std_logic;
+        tx_valid : in std_logic;
+        tx_ready : out std_logic;
+
+        bus_dev_func : out std_logic_vector(15 downto 0);
+
+        max_read : out std_logic_vector(2 downto 0);
+        max_write : out std_logic_vector(2 downto 0);
+
+        interrupt : in std_logic;
+        interrupt_rdy : out std_logic;
+
+        bar0 : out std_logic
+);
+end pcie_wrapper;
+
+architecture arch of pcie_wrapper is
+
+        component pcie_core port (
+                pci_exp_rxn : in std_logic_vector(7 downto 0);
+                pci_exp_rxp : in std_logic_vector(7 downto 0);
+                pci_exp_txn : out std_logic_vector(7 downto 0);
+                pci_exp_txp : out std_logic_vector(7 downto 0);
+
+                sys_clk : in std_logic;
+                sys_reset_n : in std_logic;
+
+                refclkout : out std_logic;
+
+                trn_clk : out std_logic; 
+                trn_reset_n : out std_logic; 
+                trn_lnk_up_n : out std_logic; 
+
+                trn_rd : out std_logic_vector(63 downto 0);
+                trn_rrem_n : out std_logic_vector(7 downto 0);
+                trn_rsof_n : out std_logic;
+                trn_reof_n : out std_logic; 
+                trn_rsrc_dsc_n : out std_logic; 
+                trn_rsrc_rdy_n : out std_logic; 
+                trn_rbar_hit_n : out std_logic_vector(6 downto 0);
+                trn_rdst_rdy_n : in std_logic; 
+                trn_rerrfwd_n : out std_logic; 
+                trn_rnp_ok_n : in std_logic; 
+                trn_rfc_npd_av : out std_logic_vector(11 downto 0); 
+                trn_rfc_nph_av : out std_logic_vector(7 downto 0); 
+                trn_rfc_pd_av : out std_logic_vector(11 downto 0); 
+                trn_rfc_ph_av : out std_logic_vector(7 downto 0);
+                trn_rcpl_streaming_n : in std_logic;
+
+                trn_td : in std_logic_vector(63 downto 0);
+                trn_trem_n : in std_logic_vector(7 downto 0);
+                trn_tsof_n : in std_logic;
+                trn_teof_n : in std_logic;
+                trn_tsrc_dsc_n : in std_logic;
+                trn_tsrc_rdy_n : in std_logic;
+                trn_tdst_dsc_n : out std_logic;
+                trn_tdst_rdy_n : out std_logic;
+                trn_terrfwd_n : in std_logic ;
+                trn_tbuf_av : out std_logic_vector(3 downto 0);
+
+                cfg_do : out std_logic_vector(31 downto 0);
+                cfg_rd_wr_done_n : out std_logic; 
+                cfg_di : in std_logic_vector(31 downto 0); 
+                cfg_byte_en_n : in std_logic_vector(3 downto 0); 
+                cfg_dwaddr : in std_logic_vector(9 downto 0);
+                cfg_wr_en_n : in std_logic;
+                cfg_rd_en_n : in std_logic; 
+
+                cfg_err_cor_n : in std_logic; 
+                cfg_err_cpl_abort_n : in std_logic; 
+                cfg_err_cpl_timeout_n : in std_logic; 
+                cfg_err_cpl_unexpect_n : in std_logic; 
+                cfg_err_ecrc_n : in std_logic; 
+                cfg_err_posted_n : in std_logic; 
+                cfg_err_tlp_cpl_header : in std_logic_vector(47 downto 0); 
+                cfg_err_ur_n : in std_logic;
+                cfg_err_cpl_rdy_n : out std_logic;
+                cfg_err_locked_n : in std_logic; 
+                cfg_interrupt_n : in std_logic;
+                cfg_interrupt_rdy_n : out std_logic;
+                cfg_pm_wake_n : in std_logic;
+                cfg_pcie_link_state_n : out std_logic_vector(2 downto 0); 
+                cfg_to_turnoff_n : out std_logic;
+                cfg_interrupt_assert_n : in  std_logic;
+                cfg_interrupt_di : in  std_logic_vector(7 downto 0);
+                cfg_interrupt_do : out std_logic_vector(7 downto 0);
+                cfg_interrupt_mmenable : out std_logic_vector(2 downto 0);
+                cfg_interrupt_msienable : out std_logic;
+
+                cfg_trn_pending_n : in std_logic;
+                cfg_bus_number : out std_logic_vector(7 downto 0);
+                cfg_device_number : out std_logic_vector(4 downto 0);
+                cfg_function_number : out std_logic_vector(2 downto 0);
+                cfg_status : out std_logic_vector(15 downto 0);
+                cfg_command : out std_logic_vector(15 downto 0);
+                cfg_dstatus : out std_logic_vector(15 downto 0);
+                cfg_dcommand : out std_logic_vector(15 downto 0);
+                cfg_lstatus : out std_logic_vector(15 downto 0);
+                cfg_lcommand : out std_logic_vector(15 downto 0);
+                cfg_dsn : in std_logic_vector(63 downto 0);
+
+                fast_train_simulation_only : in std_logic
+        );
+        end component;
+
+        signal sys_reset_n : std_logic;
+
+        signal trn_clk : std_logic; 
+        signal trn_reset_n : std_logic; 
+        signal trn_lnk_up_n : std_logic; 
+
+        signal trn_rd : std_logic_vector(63 downto 0);
+        signal trn_rrem_n : std_logic_vector(7 downto 0);
+        signal trn_rsof_n : std_logic;
+        signal trn_reof_n : std_logic; 
+        signal trn_rsrc_dsc_n : std_logic; 
+        signal trn_rsrc_rdy_n : std_logic; 
+        signal trn_rbar_hit_n : std_logic_vector(6 downto 0);
+        signal trn_rdst_rdy_n : std_logic; 
+        signal trn_rerrfwd_n : std_logic; 
+        signal trn_rnp_ok_n : std_logic; 
+        signal trn_rfc_npd_av : std_logic_vector(11 downto 0); 
+        signal trn_rfc_nph_av : std_logic_vector(7 downto 0); 
+        signal trn_rfc_pd_av : std_logic_vector(11 downto 0); 
+        signal trn_rfc_ph_av : std_logic_vector(7 downto 0);
+        signal trn_rcpl_streaming_n : std_logic;
+
+        signal trn_td : std_logic_vector(63 downto 0);
+        signal trn_trem_n : std_logic_vector(7 downto 0);
+        signal trn_tsof_n : std_logic;
+        signal trn_teof_n : std_logic;
+        signal trn_tsrc_dsc_n : std_logic;
+        signal trn_tsrc_rdy_n : std_logic;
+        signal trn_tdst_dsc_n : std_logic;
+        signal trn_tdst_rdy_n : std_logic;
+        signal trn_terrfwd_n : std_logic;
+        signal trn_tbuf_av : std_logic_vector(3 downto 0);
+
+        signal cfg_do : std_logic_vector(31 downto 0);
+        signal cfg_rd_wr_done_n : std_logic; 
+        signal cfg_di : std_logic_vector(31 downto 0); 
+        signal cfg_byte_en_n : std_logic_vector(3 downto 0); 
+        signal cfg_dwaddr : std_logic_vector(9 downto 0);
+        signal cfg_wr_en_n : std_logic;
+        signal cfg_rd_en_n : std_logic; 
+
+        signal cfg_err_cor_n : std_logic; 
+        signal cfg_err_cpl_abort_n : std_logic; 
+        signal cfg_err_cpl_timeout_n : std_logic; 
+        signal cfg_err_cpl_unexpect_n : std_logic; 
+        signal cfg_err_ecrc_n : std_logic; 
+        signal cfg_err_posted_n : std_logic; 
+        signal cfg_err_tlp_cpl_header : std_logic_vector(47 downto 0); 
+        signal cfg_err_ur_n : std_logic;
+        signal cfg_err_cpl_rdy_n : std_logic;
+        signal cfg_err_locked_n : std_logic; 
+        signal cfg_interrupt_n : std_logic;
+        signal cfg_interrupt_rdy_n : std_logic;
+        signal cfg_pm_wake_n : std_logic;
+        signal cfg_pcie_link_state_n : std_logic_vector(2 downto 0); 
+        signal cfg_to_turnoff_n : std_logic;
+        signal cfg_interrupt_assert_n : std_logic;
+        signal cfg_interrupt_di : std_logic_vector(7 downto 0);
+        signal cfg_interrupt_do : std_logic_vector(7 downto 0);
+        signal cfg_interrupt_mmenable : std_logic_vector(2 downto 0);
+        signal cfg_interrupt_msienable : std_logic;
+
+        signal cfg_trn_pending_n : std_logic;
+        signal cfg_bus_number : std_logic_vector(7 downto 0);
+        signal cfg_device_number : std_logic_vector(4 downto 0);
+        signal cfg_function_number : std_logic_vector(2 downto 0);
+        signal cfg_status : std_logic_vector(15 downto 0);
+        signal cfg_command : std_logic_vector(15 downto 0);
+        signal cfg_dstatus : std_logic_vector(15 downto 0);
+        signal cfg_dcommand : std_logic_vector(15 downto 0);
+        signal cfg_lstatus : std_logic_vector(15 downto 0);
+        signal cfg_lcommand : std_logic_vector(15 downto 0);
+        signal cfg_dsn : std_logic_vector(63 downto 0);
+        
+        signal pcie_clk : std_logic;
+begin
+        pcie_clk_ibuf : IBUFDS port map (
+                O => pcie_clk,
+                I => pcie_clk_p,
+                IB => pcie_clk_n
+        );
+
+        sys_reset_n <= not reset25;
+
+        trn_rdst_rdy_n <= '0';
+        trn_rnp_ok_n <= '0';
+        trn_rcpl_streaming_n <= '1';
+        
+        trn_tsrc_dsc_n <= '1';
+        trn_terrfwd_n <= '1';
+
+        cfg_di <= (others => '0');
+        cfg_byte_en_n <= (others => '1');
+        cfg_dwaddr <= (others => '0');
+        cfg_wr_en_n <= '1';
+        cfg_rd_en_n <= '1';
+
+        cfg_err_cor_n <= '1';
+        cfg_err_cpl_abort_n <= '1';
+        cfg_err_cpl_timeout_n <= '1';
+        cfg_err_cpl_unexpect_n <= '1';
+        cfg_err_ecrc_n <= '1';
+        cfg_err_posted_n <= '1';
+        cfg_err_tlp_cpl_header <= (others => '0');
+        cfg_err_ur_n <= '1';
+        cfg_err_locked_n <= '1';
+        cfg_interrupt_n <= not interrupt;
+        cfg_pm_wake_n <= '1';
+        cfg_interrupt_assert_n <= '1';
+        cfg_interrupt_di <= (others => '0');
+        interrupt_rdy <= not cfg_interrupt_rdy_n;
+
+        cfg_trn_pending_n <= '1';
+        cfg_dsn <= (others => '0');
+
+        ep : pcie_core port map (
+                pci_exp_rxn => pci_exp_rxn,
+                pci_exp_rxp => pci_exp_rxp,
+                pci_exp_txn => pci_exp_txn,
+                pci_exp_txp => pci_exp_txp,
+
+                sys_clk => pcie_clk,
+                sys_reset_n => sys_reset_n,
+
+                refclkout => open,
+
+                trn_clk => trn_clk,
+                trn_reset_n => trn_reset_n,
+                trn_lnk_up_n => trn_lnk_up_n,
+
+                trn_rd => trn_rd,
+                trn_rrem_n => trn_rrem_n,
+                trn_rsof_n => trn_rsof_n,
+                trn_reof_n => trn_reof_n,
+                trn_rsrc_dsc_n => trn_rsrc_dsc_n,
+                trn_rsrc_rdy_n => trn_rsrc_rdy_n,
+                trn_rbar_hit_n => trn_rbar_hit_n,
+                trn_rdst_rdy_n => trn_rdst_rdy_n,
+                trn_rerrfwd_n => trn_rerrfwd_n,
+                trn_rnp_ok_n => trn_rnp_ok_n,
+                trn_rfc_npd_av => trn_rfc_npd_av,
+                trn_rfc_nph_av => trn_rfc_nph_av,
+                trn_rfc_pd_av => trn_rfc_pd_av,
+                trn_rfc_ph_av => trn_rfc_ph_av,
+                trn_rcpl_streaming_n => trn_rcpl_streaming_n,
+
+                trn_td => trn_td,
+                trn_trem_n => trn_trem_n,
+                trn_tsof_n => trn_tsof_n,
+                trn_teof_n => trn_teof_n,
+                trn_tsrc_dsc_n => trn_tsrc_dsc_n,
+                trn_tsrc_rdy_n => trn_tsrc_rdy_n,
+                trn_tdst_dsc_n => trn_tdst_dsc_n,
+                trn_tdst_rdy_n => trn_tdst_rdy_n,
+                trn_terrfwd_n => trn_terrfwd_n,
+                trn_tbuf_av => trn_tbuf_av,
+
+                cfg_do => cfg_do,
+                cfg_rd_wr_done_n => cfg_rd_wr_done_n,
+                cfg_di => cfg_di,
+                cfg_byte_en_n => cfg_byte_en_n,
+                cfg_dwaddr => cfg_dwaddr,
+                cfg_wr_en_n => cfg_wr_en_n,
+                cfg_rd_en_n => cfg_rd_en_n,
+
+                cfg_err_cor_n => cfg_err_cor_n,
+                cfg_err_cpl_abort_n => cfg_err_cpl_abort_n,
+                cfg_err_cpl_timeout_n => cfg_err_cpl_timeout_n,
+                cfg_err_cpl_unexpect_n => cfg_err_cpl_unexpect_n,
+                cfg_err_ecrc_n => cfg_err_ecrc_n,
+                cfg_err_posted_n => cfg_err_posted_n,
+                cfg_err_tlp_cpl_header => cfg_err_tlp_cpl_header,
+                cfg_err_ur_n => cfg_err_ur_n,
+                cfg_err_cpl_rdy_n => cfg_err_cpl_rdy_n,
+                cfg_err_locked_n => cfg_err_locked_n,
+                cfg_interrupt_n => cfg_interrupt_n,
+                cfg_interrupt_rdy_n => cfg_interrupt_rdy_n,
+                cfg_pm_wake_n => cfg_pm_wake_n,
+                cfg_pcie_link_state_n => cfg_pcie_link_state_n,
+                cfg_to_turnoff_n => cfg_to_turnoff_n,
+                cfg_interrupt_assert_n => cfg_interrupt_assert_n,
+                cfg_interrupt_di => cfg_interrupt_di,
+                cfg_interrupt_do => cfg_interrupt_do,
+                cfg_interrupt_mmenable => cfg_interrupt_mmenable,
+                cfg_interrupt_msienable => cfg_interrupt_msienable,
+
+                cfg_trn_pending_n => cfg_trn_pending_n,
+                cfg_bus_number => cfg_bus_number,
+                cfg_device_number => cfg_device_number,
+                cfg_function_number => cfg_function_number,
+                cfg_status => cfg_status,
+                cfg_command => cfg_command,
+                cfg_dstatus => cfg_dstatus,
+                cfg_dcommand => cfg_dcommand,
+                cfg_lstatus => cfg_lstatus,
+                cfg_lcommand => cfg_lcommand,
+                cfg_dsn => cfg_dsn,
+
+                fast_train_simulation_only => '0'
+        );
+
+        clk125 <= trn_clk;
+        reset125 <= not trn_reset_n;
+
+        rx_frame <= trn_rd;
+        rx_sof <= not trn_rsof_n;
+        rx_eof <= not trn_reof_n;
+        rx_valid <= not trn_rsrc_rdy_n;
+
+        trn_td <= tx_frame;
+        trn_tsof_n <= not tx_sof;
+        trn_teof_n <= not tx_eof;
+        trn_tsrc_rdy_n <= not tx_valid;
+        trn_trem_n <= x"0F" when tx_half = '1' else x"00";
+
+        tx_ready <= not trn_tdst_rdy_n;
+
+        bus_dev_func <= cfg_bus_number & cfg_device_number & cfg_function_number;
+
+        max_read <= cfg_dcommand(14 downto 12);
+        max_write <= cfg_dcommand(7 downto 5);
+
+        bar0 <= not trn_rbar_hit_n(0);
+end arch;
+