atl1c: remove SMB/CMB DMA related code
l1c & later chips don't support DMA for SMB.
CMB is removed from hardware.
reg(15C8) is used to trig interrupt by tpd threshold.
Signed-off-by: xiong <xiong@qca.qualcomm.com>
Tested-by: Liu David <dwliu@qca.qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 4f19f5c..c4d5929f7 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -733,8 +733,6 @@
hw->ict = 50000; /* 100ms */
hw->smb_timer = 200000; /* 400ms */
- hw->cmb_tpd = 4;
- hw->cmb_tx_timer = 1; /* 2 us */
hw->rx_imt = 200;
hw->tx_imt = 1000;
@@ -943,8 +941,7 @@
sizeof(struct atl1c_tpd_desc) * tpd_ring->count * 2 +
sizeof(struct atl1c_rx_free_desc) * rx_desc_count +
sizeof(struct atl1c_recv_ret_status) * rx_desc_count +
- sizeof(struct atl1c_hw_stats) +
- 8 * 4 + 8 * 2;
+ 8 * 4;
ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
&ring_header->dma);
@@ -977,8 +974,6 @@
rrd_ring->count;
offset += roundup(rrd_ring->size, 8);
- adapter->smb.dma = ring_header->dma + offset;
- adapter->smb.smb = (u8 *)ring_header->desc + offset;
return 0;
err_nomem:
@@ -993,8 +988,6 @@
struct atl1c_rrd_ring *rrd_ring = &adapter->rrd_ring;
struct atl1c_tpd_ring *tpd_ring = (struct atl1c_tpd_ring *)
adapter->tpd_ring;
- struct atl1c_cmb *cmb = (struct atl1c_cmb *) &adapter->cmb;
- struct atl1c_smb *smb = (struct atl1c_smb *) &adapter->smb;
u32 data;
/* TPD */
@@ -1029,14 +1022,6 @@
AT_WRITE_REG(hw, REG_RRD_RING_SIZE,
(rrd_ring->count & RRD_RING_SIZE_MASK));
- /* CMB */
- AT_WRITE_REG(hw, REG_CMB_BASE_ADDR_LO, cmb->dma & AT_DMA_LO_ADDR_MASK);
-
- /* SMB */
- AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_HI,
- (u32)((smb->dma & AT_DMA_HI_ADDR_MASK) >> 32));
- AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_LO,
- (u32)(smb->dma & AT_DMA_LO_ADDR_MASK));
if (hw->nic_type == athr_l2c_b) {
AT_WRITE_REG(hw, REG_SRAM_RXF_LEN, 0x02a0L);
AT_WRITE_REG(hw, REG_SRAM_TXF_LEN, 0x0100L);
@@ -1115,12 +1100,6 @@
u32 dma_ctrl_data;
dma_ctrl_data = DMA_CTRL_DMAR_REQ_PRI;
- if (hw->ctrl_flags & ATL1C_CMB_ENABLE)
- dma_ctrl_data |= DMA_CTRL_CMB_EN;
- if (hw->ctrl_flags & ATL1C_SMB_ENABLE)
- dma_ctrl_data |= DMA_CTRL_SMB_EN;
- else
- dma_ctrl_data |= MAC_CTRL_SMB_DIS;
switch (hw->dma_order) {
case atl1c_dma_ord_in:
@@ -1440,16 +1419,9 @@
master_ctrl_data |= MASTER_CTRL_SA_TIMER_EN;
AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data);
- if (hw->ctrl_flags & ATL1C_CMB_ENABLE) {
- AT_WRITE_REG(hw, REG_CMB_TPD_THRESH,
- hw->cmb_tpd & CMB_TPD_THRESH_MASK);
- AT_WRITE_REG(hw, REG_CMB_TX_TIMER,
- hw->cmb_tx_timer & CMB_TX_TIMER_MASK);
- }
+ AT_WRITE_REG(hw, REG_SMB_STAT_TIMER,
+ hw->smb_timer & SMB_STAT_TIMER_MASK);
- if (hw->ctrl_flags & ATL1C_SMB_ENABLE)
- AT_WRITE_REG(hw, REG_SMB_STAT_TIMER,
- hw->smb_timer & SMB_STAT_TIMER_MASK);
/* set MTU */
AT_WRITE_REG(hw, REG_MTU, hw->max_frame_size + ETH_HLEN +
VLAN_HLEN + ETH_FCS_LEN);