ixgbe/base: add sw-firmware sync for resource sharing on X550em_a
[dpdk.git] / drivers / net / ixgbe / base / ixgbe_x550.c
index 3469260..83d9c81 100644 (file)
@@ -39,6 +39,8 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "ixgbe_phy.h"
 
 STATIC s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed);
+static s32 ixgbe_acquire_swfw_sync_X550a(struct ixgbe_hw *, u32 mask);
+static void ixgbe_release_swfw_sync_X550a(struct ixgbe_hw *, u32 mask);
 
 /**
  *  ixgbe_init_ops_X550 - Inits func ptrs and MAC type
@@ -80,9 +82,14 @@ s32 ixgbe_init_ops_X550(struct ixgbe_hw *hw)
        mac->ops.mdd_event = ixgbe_mdd_event_X550;
        mac->ops.restore_mdd_vf = ixgbe_restore_mdd_vf_X550;
        mac->ops.disable_rx = ixgbe_disable_rx_x550;
-       if (hw->device_id == IXGBE_DEV_ID_X550EM_X_10G_T) {
+       switch (hw->device_id) {
+       case IXGBE_DEV_ID_X550EM_X_10G_T:
+       case IXGBE_DEV_ID_X550EM_A_10G_T:
                hw->mac.ops.led_on = ixgbe_led_on_t_X550em;
                hw->mac.ops.led_off = ixgbe_led_off_t_X550em;
+               break;
+       default:
+               break;
        }
        return ret_val;
 }
@@ -330,22 +337,36 @@ STATIC void ixgbe_setup_mux_ctl(struct ixgbe_hw *hw)
 STATIC s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw)
 {
        switch (hw->device_id) {
+       case IXGBE_DEV_ID_X550EM_A_SFP:
+               hw->phy.phy_semaphore_mask = IXGBE_GSSR_TOKEN_SM;
+               if (hw->bus.lan_id)
+                       hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY1_SM;
+               else
+                       hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY0_SM;
+               return ixgbe_identify_module_generic(hw);
        case IXGBE_DEV_ID_X550EM_X_SFP:
                /* set up for CS4227 usage */
                hw->phy.phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
                ixgbe_setup_mux_ctl(hw);
                ixgbe_check_cs4227(hw);
+               /* Fallthrough */
 
+       case IXGBE_DEV_ID_X550EM_A_SFP_N:
                return ixgbe_identify_module_generic(hw);
                break;
        case IXGBE_DEV_ID_X550EM_X_KX4:
                hw->phy.type = ixgbe_phy_x550em_kx4;
                break;
        case IXGBE_DEV_ID_X550EM_X_KR:
+       case IXGBE_DEV_ID_X550EM_A_KR:
+       case IXGBE_DEV_ID_X550EM_A_KR_L:
                hw->phy.type = ixgbe_phy_x550em_kr;
                break;
        case IXGBE_DEV_ID_X550EM_X_1G_T:
        case IXGBE_DEV_ID_X550EM_X_10G_T:
+       case IXGBE_DEV_ID_X550EM_A_1G_T:
+       case IXGBE_DEV_ID_X550EM_A_1G_T_L:
+       case IXGBE_DEV_ID_X550EM_A_10G_T:
                return ixgbe_identify_phy_generic(hw);
        default:
                break;
@@ -420,6 +441,12 @@ s32 ixgbe_init_ops_X550EM(struct ixgbe_hw *hw)
                mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync_X550em;
                mac->ops.release_swfw_sync = ixgbe_release_swfw_sync_X550em;
        }
+       if (hw->mac.type == ixgbe_mac_X550EM_a) {
+               mac->ops.read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a;
+               mac->ops.write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a;
+               mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync_X550a;
+               mac->ops.release_swfw_sync = ixgbe_release_swfw_sync_X550a;
+       }
 
        mac->ops.get_media_type = ixgbe_get_media_type_X550em;
        mac->ops.setup_sfp = ixgbe_setup_sfp_modules_X550em;
@@ -635,7 +662,6 @@ s32 ixgbe_setup_eee_X550(struct ixgbe_hw *hw, bool enable_eee)
        u16 autoneg_eee_reg;
        u32 link_reg;
        s32 status;
-       u32 fuse;
 
        DEBUGFUNC("ixgbe_setup_eee_X550");
 
@@ -644,7 +670,7 @@ s32 ixgbe_setup_eee_X550(struct ixgbe_hw *hw, bool enable_eee)
        if (enable_eee) {
                eeer |= (IXGBE_EEER_TX_LPI_EN | IXGBE_EEER_RX_LPI_EN);
 
-               if (hw->device_id == IXGBE_DEV_ID_X550T) {
+               if (hw->mac.type == ixgbe_mac_X550) {
                        /* Advertise EEE capability */
                        hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_EEE_ADVT,
                                IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_eee_reg);
@@ -656,9 +682,10 @@ s32 ixgbe_setup_eee_X550(struct ixgbe_hw *hw, bool enable_eee)
                        hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_EEE_ADVT,
                                IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_eee_reg);
                } else if (hw->device_id == IXGBE_DEV_ID_X550EM_X_KR) {
-                       /* Not supported on first revision. */
-                       fuse = IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0));
-                       if (!(fuse & IXGBE_FUSES0_REV1))
+                       /* Not supported on first revision of X550EM_x. */
+                       if ((hw->mac.type == ixgbe_mac_X550EM_x) &&
+                           !(IXGBE_FUSES0_REV_MASK &
+                             IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0))))
                                return IXGBE_SUCCESS;
 
                        status = ixgbe_read_iosf_sb_reg_x550(hw,
@@ -682,7 +709,7 @@ s32 ixgbe_setup_eee_X550(struct ixgbe_hw *hw, bool enable_eee)
        } else {
                eeer &= ~(IXGBE_EEER_TX_LPI_EN | IXGBE_EEER_RX_LPI_EN);
 
-               if (hw->device_id == IXGBE_DEV_ID_X550T) {
+               if (hw->mac.type == ixgbe_mac_X550) {
                        /* Disable advertised EEE capability */
                        hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_EEE_ADVT,
                                IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_eee_reg);
@@ -897,6 +924,126 @@ out:
        return ret;
 }
 
+/**
+ * ixgbe_get_phy_token - Get the token for shared phy access
+ * @hw: Pointer to hardware structure
+ */
+
+s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
+{
+       struct ixgbe_hic_phy_token_req token_cmd;
+       s32 status;
+
+       token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
+       token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
+       token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
+       token_cmd.port_number = hw->bus.lan_id;
+       token_cmd.command_type = FW_PHY_TOKEN_REQ;
+       token_cmd.pad = 0;
+       status = ixgbe_host_interface_command(hw, (u32 *)&token_cmd,
+                                             sizeof(token_cmd),
+                                             IXGBE_HI_COMMAND_TIMEOUT,
+                                             true);
+       if (status)
+               return status;
+       if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
+               return IXGBE_SUCCESS;
+       if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
+               return IXGBE_ERR_FW_RESP_INVALID;
+
+       return IXGBE_ERR_TOKEN_RETRY;
+}
+
+/**
+ * ixgbe_put_phy_token - Put the token for shared phy access
+ * @hw: Pointer to hardware structure
+ */
+
+s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
+{
+       struct ixgbe_hic_phy_token_req token_cmd;
+       s32 status;
+
+       token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
+       token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
+       token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
+       token_cmd.port_number = hw->bus.lan_id;
+       token_cmd.command_type = FW_PHY_TOKEN_REL;
+       token_cmd.pad = 0;
+       status = ixgbe_host_interface_command(hw, (u32 *)&token_cmd,
+                                             sizeof(token_cmd),
+                                             IXGBE_HI_COMMAND_TIMEOUT,
+                                             true);
+       if (status)
+               return status;
+       if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
+               return IXGBE_SUCCESS;
+       return IXGBE_ERR_FW_RESP_INVALID;
+}
+
+/**
+ *  ixgbe_write_iosf_sb_reg_x550a - Writes a value to specified register
+ *  of the IOSF device
+ *  @hw: pointer to hardware structure
+ *  @reg_addr: 32 bit PHY register to write
+ *  @device_type: 3 bit device type
+ *  @data: Data to write to the register
+ **/
+s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
+       u32 device_type, u32 data)
+{
+       struct ixgbe_hic_internal_phy_req write_cmd;
+       s32 status;
+       UNREFERENCED_1PARAMETER(device_type);
+
+       write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
+       write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
+       write_cmd.port_number = hw->bus.lan_id;
+       write_cmd.command_type = FW_INT_PHY_REQ_WRITE;
+       write_cmd.address = (u16)reg_addr;
+       write_cmd.rsv1 = 0;
+       write_cmd.write_data = data;
+       write_cmd.pad = 0;
+
+       status = ixgbe_host_interface_command(hw, (u32 *)&write_cmd,
+               sizeof(write_cmd), IXGBE_HI_COMMAND_TIMEOUT, false);
+
+       return status;
+}
+
+/**
+ *  ixgbe_read_iosf_sb_reg_x550a - Writes a value to specified register
+ *  of the IOSF device.
+ *  @hw: pointer to hardware structure
+ *  @reg_addr: 32 bit PHY register to write
+ *  @device_type: 3 bit device type
+ *  @data: Pointer to read data from the register
+ **/
+s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
+       u32 device_type, u32 *data)
+{
+       struct ixgbe_hic_internal_phy_req read_cmd;
+       s32 status;
+       UNREFERENCED_1PARAMETER(device_type);
+
+       read_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
+       read_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
+       read_cmd.port_number = hw->bus.lan_id;
+       read_cmd.command_type = FW_INT_PHY_REQ_READ;
+       read_cmd.address = (u16)reg_addr;
+       read_cmd.rsv1 = 0;
+       read_cmd.write_data = 0;
+       read_cmd.pad = 0;
+
+       status = ixgbe_host_interface_command(hw, (u32 *)&read_cmd,
+               sizeof(read_cmd), IXGBE_HI_COMMAND_TIMEOUT, true);
+
+       /* Extract the register value from the response. */
+       *data = ((struct ixgbe_hic_internal_phy_resp *)&read_cmd)->read_data;
+
+       return status;
+}
+
 /**
  *  ixgbe_disable_mdd_X550
  *  @hw: pointer to hardware structure
@@ -1056,13 +1203,22 @@ enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
        switch (hw->device_id) {
        case IXGBE_DEV_ID_X550EM_X_KR:
        case IXGBE_DEV_ID_X550EM_X_KX4:
+       case IXGBE_DEV_ID_X550EM_A_KR:
+       case IXGBE_DEV_ID_X550EM_A_KR_L:
                media_type = ixgbe_media_type_backplane;
                break;
        case IXGBE_DEV_ID_X550EM_X_SFP:
+       case IXGBE_DEV_ID_X550EM_A_SFP:
+       case IXGBE_DEV_ID_X550EM_A_SFP_N:
+       case IXGBE_DEV_ID_X550EM_A_QSFP:
+       case IXGBE_DEV_ID_X550EM_A_QSFP_N:
                media_type = ixgbe_media_type_fiber;
                break;
        case IXGBE_DEV_ID_X550EM_X_1G_T:
        case IXGBE_DEV_ID_X550EM_X_10G_T:
+       case IXGBE_DEV_ID_X550EM_A_1G_T:
+       case IXGBE_DEV_ID_X550EM_A_1G_T_L:
+       case IXGBE_DEV_ID_X550EM_A_10G_T:
                media_type = ixgbe_media_type_copper;
                break;
        default:
@@ -1267,7 +1423,7 @@ STATIC s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
            IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
                return status;
 
-       /* High temperature failure alarm triggered */
+       /* Global alarm triggered */
        status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
                                      IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE,
                                      &reg);
@@ -1280,6 +1436,21 @@ STATIC s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
                /* power down the PHY in case the PHY FW didn't already */
                ixgbe_set_copper_phy_power(hw, false);
                return IXGBE_ERR_OVERTEMP;
+       } else if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
+               /*  device fault alarm triggered */
+               status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
+                                         IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE,
+                                         &reg);
+
+               if (status != IXGBE_SUCCESS)
+                       return status;
+
+               /* if device fault was due to high temp alarm handle and exit */
+               if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
+                       /* power down the PHY in case the PHY FW didn't */
+                       ixgbe_set_copper_phy_power(hw, false);
+                       return IXGBE_ERR_OVERTEMP;
+               }
        }
 
        /* Vendor alarm 2 triggered */
@@ -1337,7 +1508,7 @@ STATIC s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
        if (status != IXGBE_SUCCESS)
                return status;
 
-       /* Enables high temperature failure alarm */
+       /* Enable high temperature failure and global fault alarms */
        status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
                                      IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE,
                                      &reg);
@@ -1345,7 +1516,8 @@ STATIC s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
        if (status != IXGBE_SUCCESS)
                return status;
 
-       reg |= IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN;
+       reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
+               IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
 
        status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
                                       IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE,
@@ -1491,9 +1663,10 @@ s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
                phy->ops.setup_internal_link =
                                              ixgbe_setup_internal_phy_t_x550em;
 
-               /* setup SW LPLU only for first revision */
-               if (!(IXGBE_FUSES0_REV1 & IXGBE_READ_REG(hw,
-                                                      IXGBE_FUSES0_GROUP(0))))
+               /* setup SW LPLU only for first revision of X550EM_x */
+               if ((hw->mac.type == ixgbe_mac_X550EM_x) &&
+                   !(IXGBE_FUSES0_REV_MASK &
+                     IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0))))
                        phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
 
                phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
@@ -2697,7 +2870,9 @@ s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
        bool link_up;
 
        /* SW LPLU not required on later HW revisions. */
-       if (IXGBE_FUSES0_REV1 & IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)))
+       if ((hw->mac.type == ixgbe_mac_X550EM_x) &&
+           (IXGBE_FUSES0_REV_MASK &
+            IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0))))
                return IXGBE_SUCCESS;
 
        /* If blocked by MNG FW, then don't restart AN */
@@ -2965,6 +3140,59 @@ void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
        ixgbe_release_swfw_sync_X540(hw, mask);
 }
 
+/**
+ *  ixgbe_acquire_swfw_sync_X550a - Acquire SWFW semaphore
+ *  @hw: pointer to hardware structure
+ *  @mask: Mask to specify which semaphore to acquire
+ *
+ *  Acquires the SWFW semaphore and get the shared phy token as needed
+ */
+static s32 ixgbe_acquire_swfw_sync_X550a(struct ixgbe_hw *hw, u32 mask)
+{
+       u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
+       int retries = FW_PHY_TOKEN_RETRIES;
+       s32 status = IXGBE_SUCCESS;
+
+       DEBUGFUNC("ixgbe_acquire_swfw_sync_X550a");
+
+       while (--retries) {
+               if (hmask)
+                       status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
+               if (status)
+                       break;
+               if (!(mask & IXGBE_GSSR_TOKEN_SM))
+                       break;
+               status = ixgbe_get_phy_token(hw);
+               if (status != IXGBE_ERR_TOKEN_RETRY)
+                       break;
+               if (hmask)
+                       ixgbe_release_swfw_sync_X540(hw, hmask);
+               msec_delay(FW_PHY_TOKEN_DELAY);
+       }
+
+       return status;
+}
+
+/**
+ *  ixgbe_release_swfw_sync_X550a - Release SWFW semaphore
+ *  @hw: pointer to hardware structure
+ *  @mask: Mask to specify which semaphore to release
+ *
+ *  Releases the SWFW semaphore and puts the shared phy token as needed
+ */
+static void ixgbe_release_swfw_sync_X550a(struct ixgbe_hw *hw, u32 mask)
+{
+       u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
+
+       DEBUGFUNC("ixgbe_release_swfw_sync_X550a");
+
+       if (mask & IXGBE_GSSR_TOKEN_SM)
+               ixgbe_put_phy_token(hw);
+
+       if (hmask)
+               ixgbe_release_swfw_sync_X540(hw, hmask);
+}
+
 /**
  * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
  * @hw: pointer to hardware structure