These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / net / ethernet / hisilicon / hns / hns_dsaf_misc.c
diff --git a/kernel/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/kernel/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
new file mode 100644 (file)
index 0000000..523e9b8
--- /dev/null
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include "hns_dsaf_misc.h"
+#include "hns_dsaf_mac.h"
+#include "hns_dsaf_reg.h"
+#include "hns_dsaf_ppe.h"
+
+void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
+                     u16 speed, int data)
+{
+       int speed_reg = 0;
+       u8 value;
+
+       if (!mac_cb) {
+               pr_err("sfp_led_opt mac_dev is null!\n");
+               return;
+       }
+       if (!mac_cb->cpld_vaddr) {
+               dev_err(mac_cb->dev, "mac_id=%d, cpld_vaddr is null !\n",
+                       mac_cb->mac_id);
+               return;
+       }
+
+       if (speed == MAC_SPEED_10000)
+               speed_reg = 1;
+
+       value = mac_cb->cpld_led_value;
+
+       if (link_status) {
+               dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
+               dsaf_set_field(value, DSAF_LED_SPEED_M,
+                              DSAF_LED_SPEED_S, speed_reg);
+               dsaf_set_bit(value, DSAF_LED_DATA_B, data);
+
+               if (value != mac_cb->cpld_led_value) {
+                       dsaf_write_b(mac_cb->cpld_vaddr, value);
+                       mac_cb->cpld_led_value = value;
+               }
+       } else {
+               dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
+               mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
+       }
+}
+
+void cpld_led_reset(struct hns_mac_cb *mac_cb)
+{
+       if (!mac_cb || !mac_cb->cpld_vaddr)
+               return;
+
+       dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
+       mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
+}
+
+int cpld_set_led_id(struct hns_mac_cb *mac_cb,
+                   enum hnae_led_state status)
+{
+       switch (status) {
+       case HNAE_LED_ACTIVE:
+               mac_cb->cpld_led_value = dsaf_read_b(mac_cb->cpld_vaddr);
+               dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
+                            CPLD_LED_ON_VALUE);
+               dsaf_write_b(mac_cb->cpld_vaddr, mac_cb->cpld_led_value);
+               return 2;
+       case HNAE_LED_INACTIVE:
+               dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
+                            CPLD_LED_DEFAULT_VALUE);
+               dsaf_write_b(mac_cb->cpld_vaddr, mac_cb->cpld_led_value);
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+#define RESET_REQ_OR_DREQ 1
+
+void hns_dsaf_rst(struct dsaf_device *dsaf_dev, u32 val)
+{
+       u32 xbar_reg_addr;
+       u32 nt_reg_addr;
+
+       if (!val) {
+               xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
+               nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
+       } else {
+               xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
+               nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
+       }
+
+       dsaf_write_reg(dsaf_dev->sc_base, xbar_reg_addr,
+                      RESET_REQ_OR_DREQ);
+       dsaf_write_reg(dsaf_dev->sc_base, nt_reg_addr,
+                      RESET_REQ_OR_DREQ);
+}
+
+void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
+{
+       u32 reg_val = 0;
+       u32 reg_addr;
+
+       if (port >= DSAF_XGE_NUM)
+               return;
+
+       reg_val |= RESET_REQ_OR_DREQ;
+       reg_val |= 0x2082082 << port;
+
+       if (val == 0)
+               reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
+       else
+               reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
+
+       dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
+}
+
+void hns_dsaf_xge_core_srst_by_port(struct dsaf_device *dsaf_dev,
+                                   u32 port, u32 val)
+{
+       u32 reg_val = 0;
+       u32 reg_addr;
+
+       if (port >= DSAF_XGE_NUM)
+               return;
+
+       reg_val |= XGMAC_TRX_CORE_SRST_M << port;
+
+       if (val == 0)
+               reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
+       else
+               reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
+
+       dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
+}
+
+void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
+{
+       u32 reg_val_1;
+       u32 reg_val_2;
+
+       if (port >= DSAF_GE_NUM)
+               return;
+
+       if (port < DSAF_SERVICE_NW_NUM) {
+               reg_val_1  = 0x1 << port;
+               reg_val_2  = 0x1041041 << port;
+
+               if (val == 0) {
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_REQ1_REG,
+                                      reg_val_1);
+
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_REQ0_REG,
+                                      reg_val_2);
+               } else {
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_DREQ0_REG,
+                                      reg_val_2);
+
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_DREQ1_REG,
+                                      reg_val_1);
+               }
+       } else {
+               reg_val_1 = 0x15540 << (port - 6);
+               reg_val_2 = 0x100 << (port - 6);
+
+               if (val == 0) {
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_REQ1_REG,
+                                      reg_val_1);
+
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_PPE_RESET_REQ_REG,
+                                      reg_val_2);
+               } else {
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_GE_RESET_DREQ1_REG,
+                                      reg_val_1);
+
+                       dsaf_write_reg(dsaf_dev->sc_base,
+                                      DSAF_SUB_SC_PPE_RESET_DREQ_REG,
+                                      reg_val_2);
+               }
+       }
+}
+
+void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
+{
+       u32 reg_val = 0;
+       u32 reg_addr;
+
+       reg_val |= RESET_REQ_OR_DREQ << port;
+
+       if (val == 0)
+               reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
+       else
+               reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
+
+       dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
+}
+
+void hns_ppe_com_srst(struct ppe_common_cb *ppe_common, u32 val)
+{
+       int comm_index = ppe_common->comm_index;
+       struct dsaf_device *dsaf_dev = ppe_common->dsaf_dev;
+       u32 reg_val;
+       u32 reg_addr;
+
+       if (comm_index == HNS_DSAF_COMM_SERVICE_NW_IDX) {
+               reg_val = RESET_REQ_OR_DREQ;
+               if (val == 0)
+                       reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
+               else
+                       reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
+
+       } else {
+               reg_val = 0x100 << (comm_index - 1);
+
+               if (val == 0)
+                       reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
+               else
+                       reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
+       }
+
+       dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
+}
+
+/**
+ * hns_mac_get_sds_mode - get phy ifterface form serdes mode
+ * @mac_cb: mac control block
+ * retuen phy interface
+ */
+phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
+{
+       u32 hilink3_mode;
+       u32 hilink4_mode;
+       void __iomem *sys_ctl_vaddr = mac_cb->sys_ctl_vaddr;
+       int dev_id = mac_cb->mac_id;
+       phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
+
+       hilink3_mode = dsaf_read_reg(sys_ctl_vaddr, HNS_MAC_HILINK3_REG);
+       hilink4_mode = dsaf_read_reg(sys_ctl_vaddr, HNS_MAC_HILINK4_REG);
+       if (dev_id >= 0 && dev_id <= 3) {
+               if (hilink4_mode == 0)
+                       phy_if = PHY_INTERFACE_MODE_SGMII;
+               else
+                       phy_if = PHY_INTERFACE_MODE_XGMII;
+       } else if (dev_id >= 4 && dev_id <= 5) {
+               if (hilink3_mode == 0)
+                       phy_if = PHY_INTERFACE_MODE_SGMII;
+               else
+                       phy_if = PHY_INTERFACE_MODE_XGMII;
+       } else {
+               phy_if = PHY_INTERFACE_MODE_SGMII;
+       }
+
+       dev_dbg(mac_cb->dev,
+               "hilink3_mode=%d, hilink4_mode=%d dev_id=%d, phy_if=%d\n",
+               hilink3_mode, hilink4_mode, dev_id, phy_if);
+       return phy_if;
+}
+
+/**
+ * hns_mac_config_sds_loopback - set loop back for serdes
+ * @mac_cb: mac control block
+ * retuen 0 == success
+ */
+int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, u8 en)
+{
+       /* port 0-3 hilink4 base is serdes_vaddr + 0x00280000
+        * port 4-7 hilink3 base is serdes_vaddr + 0x00200000
+        */
+       u8 *base_addr = (u8 *)mac_cb->serdes_vaddr +
+                      (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
+       const u8 lane_id[] = {
+               0,      /* mac 0 -> lane 0 */
+               1,      /* mac 1 -> lane 1 */
+               2,      /* mac 2 -> lane 2 */
+               3,      /* mac 3 -> lane 3 */
+               2,      /* mac 4 -> lane 2 */
+               3,      /* mac 5 -> lane 3 */
+               0,      /* mac 6 -> lane 0 */
+               1       /* mac 7 -> lane 1 */
+       };
+#define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
+       u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
+
+       int sfp_prsnt;
+       int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
+
+       if (!mac_cb->phy_node) {
+               if (ret)
+                       pr_info("please confirm sfp is present or not\n");
+               else
+                       if (!sfp_prsnt)
+                               pr_info("no sfp in this eth\n");
+       }
+
+       dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, !!en);
+
+       return 0;
+}