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cndm: Add qtype field to queue state to enable sharing

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2026-03-05 22:12:39 -08:00
parent 8263ebab24
commit 595d744aa4
4 changed files with 44 additions and 2 deletions
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17
src/cndm/rtl/cndm_micro_dp_mgr.sv
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@@ -81,6 +81,13 @@ typedef enum logic [15:0] {
CMD_OP_DESTROY_QP = 16'h0243
} cmd_opcode_t;
typedef enum logic [2:0] {
QTYPE_EQ,
QTYPE_CQ,
QTYPE_SQ,
QTYPE_RQ
} qtype_t;
typedef enum logic [4:0] {
STATE_IDLE,
STATE_START,
@@ -162,6 +169,7 @@ logic [31:0] flags_reg = '0, flags_next;
logic [15:0] port_reg = '0, port_next;
logic [23:0] qn_reg = '0, qn_next;
logic [23:0] qn2_reg = '0, qn2_next;
logic [2:0] qtype_reg = '0, qtype_next;
logic [3:0] cmd_ptr_reg = '0, cmd_ptr_next;
logic [DP_APB_ADDR_W-1:0] dp_ptr_reg = '0, dp_ptr_next;
@@ -201,6 +209,7 @@ always_comb begin
port_next = port_reg;
qn_next = qn_reg;
qn2_next = qn2_reg;
qtype_next = qtype_reg;
cmd_ptr_next = cmd_ptr_reg;
dp_ptr_next = dp_ptr_reg;
@@ -272,6 +281,7 @@ always_comb begin
CMD_OP_CREATE_CQ:
begin
cnt_next = 2**CQN_W-1;
qtype_next = QTYPE_CQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h8000) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h8000) + PORT_BASE_ADDR_HOST;
end
@@ -279,6 +289,7 @@ always_comb begin
CMD_OP_QUERY_CQ,
CMD_OP_DESTROY_CQ:
begin
qtype_next = QTYPE_CQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h8000 | {qn_reg, 5'd00}) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h8000 | {qn_reg, 5'd00}) + PORT_BASE_ADDR_HOST;
end
@@ -286,6 +297,7 @@ always_comb begin
CMD_OP_CREATE_SQ:
begin
cnt_next = 0;
qtype_next = QTYPE_SQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h0000) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h0000) + PORT_BASE_ADDR_HOST;
end
@@ -293,6 +305,7 @@ always_comb begin
CMD_OP_QUERY_SQ,
CMD_OP_DESTROY_SQ:
begin
qtype_next = QTYPE_SQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h0000) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h0000) + PORT_BASE_ADDR_HOST;
end
@@ -300,6 +313,7 @@ always_comb begin
CMD_OP_CREATE_RQ:
begin
cnt_next = 0;
qtype_next = QTYPE_RQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h0020) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h0020) + PORT_BASE_ADDR_HOST;
end
@@ -307,6 +321,7 @@ always_comb begin
CMD_OP_QUERY_RQ,
CMD_OP_DESTROY_RQ:
begin
qtype_next = QTYPE_RQ;
dp_ptr_next = DP_APB_ADDR_W'({port_reg, 16'd0} | 'h0020) + DP_APB_ADDR_W'(PORT_BASE_ADDR_DP);
host_ptr_next = 32'({port_reg, 16'd0} | 'h0020) + PORT_BASE_ADDR_HOST;
end
@@ -600,6 +615,7 @@ always_comb begin
m_apb_dp_ctrl_pwrite_next = 1'b1;
m_apb_dp_ctrl_pwdata_next = '0;
m_apb_dp_ctrl_pwdata_next[19:16] = cmd_ram_rd_data[3:0];
m_apb_dp_ctrl_pwdata_next[23:20] = 4'(qtype_reg);
m_apb_dp_ctrl_pwdata_next[0] = 1'b1;
m_apb_dp_ctrl_pstrb_next = '1;
@@ -855,6 +871,7 @@ always_ff @(posedge clk) begin
port_reg <= port_next;
qn_reg <= qn_next;
qn2_reg <= qn2_next;
qtype_reg <= qtype_next;
cmd_ptr_reg <= cmd_ptr_next;
dp_ptr_reg <= dp_ptr_next;