| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sony Chacko | 8785 | 76.72% | 8 | 15.09% |
| Shahed Shaikh | 1132 | 9.89% | 11 | 20.75% |
| Manish Chopra | 471 | 4.11% | 6 | 11.32% |
| Pratik Pujar | 468 | 4.09% | 5 | 9.43% |
| Himanshu Madhani | 333 | 2.91% | 7 | 13.21% |
| Rajesh K Borundia | 130 | 1.14% | 4 | 7.55% |
| Sucheta Chakraborty | 97 | 0.85% | 9 | 16.98% |
| Stephen Hemminger | 32 | 0.28% | 1 | 1.89% |
| Joe Perches | 2 | 0.02% | 1 | 1.89% |
| Jitendra Kalsaria | 1 | 0.01% | 1 | 1.89% |
| Total | 11451 | 53 |
/* * QLogic qlcnic NIC Driver * Copyright (c) 2009-2013 QLogic Corporation * * See LICENSE.qlcnic for copyright and licensing details. */ #include "qlcnic_sriov.h" #include "qlcnic.h" #include "qlcnic_hw.h" /* Reset template definitions */ #define QLC_83XX_RESTART_TEMPLATE_SIZE 0x2000 #define QLC_83XX_RESET_TEMPLATE_ADDR 0x4F0000 #define QLC_83XX_RESET_SEQ_VERSION 0x0101 #define QLC_83XX_OPCODE_NOP 0x0000 #define QLC_83XX_OPCODE_WRITE_LIST 0x0001 #define QLC_83XX_OPCODE_READ_WRITE_LIST 0x0002 #define QLC_83XX_OPCODE_POLL_LIST 0x0004 #define QLC_83XX_OPCODE_POLL_WRITE_LIST 0x0008 #define QLC_83XX_OPCODE_READ_MODIFY_WRITE 0x0010 #define QLC_83XX_OPCODE_SEQ_PAUSE 0x0020 #define QLC_83XX_OPCODE_SEQ_END 0x0040 #define QLC_83XX_OPCODE_TMPL_END 0x0080 #define QLC_83XX_OPCODE_POLL_READ_LIST 0x0100 /* EPORT control registers */ #define QLC_83XX_RESET_CONTROL 0x28084E50 #define QLC_83XX_RESET_REG 0x28084E60 #define QLC_83XX_RESET_PORT0 0x28084E70 #define QLC_83XX_RESET_PORT1 0x28084E80 #define QLC_83XX_RESET_PORT2 0x28084E90 #define QLC_83XX_RESET_PORT3 0x28084EA0 #define QLC_83XX_RESET_SRESHIM 0x28084EB0 #define QLC_83XX_RESET_EPGSHIM 0x28084EC0 #define QLC_83XX_RESET_ETHERPCS 0x28084ED0 static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter); static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev); static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter); static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev); static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *); static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *); /* Template header */ struct qlc_83xx_reset_hdr { #if defined(__LITTLE_ENDIAN) u16 version; u16 signature; u16 size; u16 entries; u16 hdr_size; u16 checksum; u16 init_offset; u16 start_offset; #elif defined(__BIG_ENDIAN) u16 signature; u16 version; u16 entries; u16 size; u16 checksum; u16 hdr_size; u16 start_offset; u16 init_offset; #endif } __packed; /* Command entry header. */ struct qlc_83xx_entry_hdr { #if defined(__LITTLE_ENDIAN) u16 cmd; u16 size; u16 count; u16 delay; #elif defined(__BIG_ENDIAN) u16 size; u16 cmd; u16 delay; u16 count; #endif } __packed; /* Generic poll command */ struct qlc_83xx_poll { u32 mask; u32 status; } __packed; /* Read modify write command */ struct qlc_83xx_rmw { u32 mask; u32 xor_value; u32 or_value; #if defined(__LITTLE_ENDIAN) u8 shl; u8 shr; u8 index_a; u8 rsvd; #elif defined(__BIG_ENDIAN) u8 rsvd; u8 index_a; u8 shr; u8 shl; #endif } __packed; /* Generic command with 2 DWORD */ struct qlc_83xx_entry { u32 arg1; u32 arg2; } __packed; /* Generic command with 4 DWORD */ struct qlc_83xx_quad_entry { u32 dr_addr; u32 dr_value; u32 ar_addr; u32 ar_value; } __packed; static const char *const qlc_83xx_idc_states[] = { "Unknown", "Cold", "Init", "Ready", "Need Reset", "Need Quiesce", "Failed", "Quiesce" }; static int qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter) { u32 val; val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); if ((val & 0xFFFF)) return 1; else return 0; } static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter) { u32 cur, prev; cur = adapter->ahw->idc.curr_state; prev = adapter->ahw->idc.prev_state; dev_info(&adapter->pdev->dev, "current state = %s, prev state = %s\n", adapter->ahw->idc.name[cur], adapter->ahw->idc.name[prev]); } static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter, u8 mode, int lock) { u32 val; int seconds; if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT); val |= (adapter->portnum & 0xf); val |= mode << 7; if (mode) seconds = jiffies / HZ - adapter->ahw->idc.sec_counter; else seconds = jiffies / HZ; val |= seconds << 8; QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val); adapter->ahw->idc.sec_counter = jiffies / HZ; if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter) { u32 val; val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION); val = val & ~(0x3 << (adapter->portnum * 2)); val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2)); QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val); } static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter, int lock) { u32 val; if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION); val = val & ~0xFF; val = val | QLC_83XX_IDC_MAJOR_VERSION; QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter, int status, int lock) { u32 val; if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); if (status) val = val | (1 << adapter->portnum); else val = val & ~(1 << adapter->portnum); QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); qlcnic_83xx_idc_update_minor_version(adapter); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter) { u32 val; u8 version; val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION); version = val & 0xFF; if (version != QLC_83XX_IDC_MAJOR_VERSION) { dev_info(&adapter->pdev->dev, "%s:mismatch. version 0x%x, expected version 0x%x\n", __func__, version, QLC_83XX_IDC_MAJOR_VERSION); return -EIO; } return 0; } static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter, int lock) { u32 val; if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0); /* Clear graceful reset bit */ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); val &= ~QLC_83XX_IDC_GRACEFULL_RESET; QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter, int flag, int lock) { u32 val; if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK); if (flag) val = val | (1 << adapter->portnum); else val = val & ~(1 << adapter->portnum); QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter, int time_limit) { u64 seconds; seconds = jiffies / HZ - adapter->ahw->idc.sec_counter; if (seconds <= time_limit) return 0; else return -EBUSY; } /** * qlcnic_83xx_idc_check_reset_ack_reg * * @adapter: adapter structure * * Check ACK wait limit and clear the functions which failed to ACK * * Return 0 if all functions have acknowledged the reset request. **/ static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter) { int timeout; u32 ack, presence, val; timeout = QLC_83XX_IDC_RESET_TIMEOUT_SECS; ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK); presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); dev_info(&adapter->pdev->dev, "%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence); if (!((ack & presence) == presence)) { if (qlcnic_83xx_idc_check_timeout(adapter, timeout)) { /* Clear functions which failed to ACK */ dev_info(&adapter->pdev->dev, "%s: ACK wait exceeds time limit\n", __func__); val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); val = val & ~(ack ^ presence); if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); dev_info(&adapter->pdev->dev, "%s: updated drv presence reg = 0x%x\n", __func__, val); qlcnic_83xx_unlock_driver(adapter); return 0; } else { return 1; } } else { dev_info(&adapter->pdev->dev, "%s: Reset ACK received from all functions\n", __func__); return 0; } } /** * qlcnic_83xx_idc_tx_soft_reset * * @adapter: adapter structure * * Handle context deletion and recreation request from transmit routine * * Returns -EBUSY or Success (0) * **/ static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; netif_device_detach(netdev); qlcnic_down(adapter, netdev); qlcnic_up(adapter, netdev); netif_device_attach(netdev); clear_bit(__QLCNIC_RESETTING, &adapter->state); netdev_info(adapter->netdev, "%s: soft reset complete.\n", __func__); return 0; } /** * qlcnic_83xx_idc_detach_driver * * @adapter: adapter structure * Detach net interface, stop TX and cleanup resources before the HW reset. * Returns: None * **/ static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter) { int i; struct net_device *netdev = adapter->netdev; netif_device_detach(netdev); qlcnic_83xx_detach_mailbox_work(adapter); /* Disable mailbox interrupt */ qlcnic_83xx_disable_mbx_intr(adapter); qlcnic_down(adapter, netdev); for (i = 0; i < adapter->ahw->num_msix; i++) { adapter->ahw->intr_tbl[i].id = i; adapter->ahw->intr_tbl[i].enabled = 0; adapter->ahw->intr_tbl[i].src = 0; } if (qlcnic_sriov_pf_check(adapter)) qlcnic_sriov_pf_reset(adapter); } /** * qlcnic_83xx_idc_attach_driver * * @adapter: adapter structure * * Re-attach and re-enable net interface * Returns: None * **/ static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; if (netif_running(netdev)) { if (qlcnic_up(adapter, netdev)) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } done: netif_device_attach(netdev); } static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter, int lock) { if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } qlcnic_83xx_idc_clear_registers(adapter, 0); QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED); if (lock) qlcnic_83xx_unlock_driver(adapter); qlcnic_83xx_idc_log_state_history(adapter); dev_info(&adapter->pdev->dev, "Device will enter failed state\n"); return 0; } static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter, int lock) { if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter *adapter, int lock) { if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_NEED_QUISCENT); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock) { if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_NEED_RESET); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter, int lock) { if (lock) { if (qlcnic_83xx_lock_driver(adapter)) return -EBUSY; } QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY); if (lock) qlcnic_83xx_unlock_driver(adapter); return 0; } /** * qlcnic_83xx_idc_find_reset_owner_id * * @adapter: adapter structure * * NIC gets precedence over ISCSI and ISCSI has precedence over FCOE. * Within the same class, function with lowest PCI ID assumes ownership * * Returns: reset owner id or failure indication (-EIO) * **/ static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter) { u32 reg, reg1, reg2, i, j, owner, class; reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1); reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2); owner = QLCNIC_TYPE_NIC; i = 0; j = 0; reg = reg1; do { class = (((reg & (0xF << j * 4)) >> j * 4) & 0x3); if (class == owner) break; if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) { reg = reg2; j = 0; } else { j++; } if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) { if (owner == QLCNIC_TYPE_NIC) owner = QLCNIC_TYPE_ISCSI; else if (owner == QLCNIC_TYPE_ISCSI) owner = QLCNIC_TYPE_FCOE; else if (owner == QLCNIC_TYPE_FCOE) return -EIO; reg = reg1; j = 0; i = 0; } } while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS); return i; } static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock) { int ret = 0; ret = qlcnic_83xx_restart_hw(adapter); if (ret) { qlcnic_83xx_idc_enter_failed_state(adapter, lock); } else { qlcnic_83xx_idc_clear_registers(adapter, lock); ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock); } return ret; } static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter) { u32 status; status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1); if (status & QLCNIC_RCODE_FATAL_ERROR) { dev_err(&adapter->pdev->dev, "peg halt status1=0x%x\n", status); if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) { dev_err(&adapter->pdev->dev, "On board active cooling fan failed. " "Device has been halted.\n"); dev_err(&adapter->pdev->dev, "Replace the adapter.\n"); return -EIO; } } return 0; } int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter) { int err; qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox); qlcnic_83xx_enable_mbx_interrupt(adapter); qlcnic_83xx_initialize_nic(adapter, 1); err = qlcnic_sriov_pf_reinit(adapter); if (err) return err; qlcnic_83xx_enable_mbx_interrupt(adapter); if (qlcnic_83xx_configure_opmode(adapter)) { qlcnic_83xx_idc_enter_failed_state(adapter, 1); return -EIO; } if (adapter->nic_ops->init_driver(adapter)) { qlcnic_83xx_idc_enter_failed_state(adapter, 1); return -EIO; } if (adapter->portnum == 0) qlcnic_set_drv_version(adapter); qlcnic_dcb_get_info(adapter->dcb); qlcnic_83xx_idc_attach_driver(adapter); return 0; } static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1); qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); ahw->idc.quiesce_req = 0; ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; ahw->idc.err_code = 0; ahw->idc.collect_dump = 0; ahw->reset_context = 0; adapter->tx_timeo_cnt = 0; ahw->idc.delay_reset = 0; clear_bit(__QLCNIC_RESETTING, &adapter->state); } /** * qlcnic_83xx_idc_ready_state_entry * * @adapter: adapter structure * * Perform ready state initialization, this routine will get invoked only * once from READY state. * * Returns: Error code or Success(0) * **/ int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) { qlcnic_83xx_idc_update_idc_params(adapter); /* Re-attach the device if required */ if ((ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) || (ahw->idc.prev_state == QLC_83XX_IDC_DEV_INIT)) { if (qlcnic_83xx_idc_reattach_driver(adapter)) return -EIO; } } return 0; } /** * qlcnic_83xx_idc_vnic_pf_entry * * @adapter: adapter structure * * Ensure vNIC mode privileged function starts only after vNIC mode is * enabled by management function. * If vNIC mode is ready, start initialization. * * Returns: -EIO or 0 * **/ int qlcnic_83xx_idc_vnic_pf_entry(struct qlcnic_adapter *adapter) { u32 state; struct qlcnic_hardware_context *ahw = adapter->ahw; /* Privileged function waits till mgmt function enables VNIC mode */ state = QLCRDX(adapter->ahw, QLC_83XX_VNIC_STATE); if (state != QLCNIC_DEV_NPAR_OPER) { if (!ahw->idc.vnic_wait_limit--) { qlcnic_83xx_idc_enter_failed_state(adapter, 1); return -EIO; } dev_info(&adapter->pdev->dev, "vNIC mode disabled\n"); return -EIO; } else { /* Perform one time initialization from ready state */ if (ahw->idc.vnic_state != QLCNIC_DEV_NPAR_OPER) { qlcnic_83xx_idc_update_idc_params(adapter); /* If the previous state is UNKNOWN, device will be already attached properly by Init routine*/ if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_UNKNOWN) { if (qlcnic_83xx_idc_reattach_driver(adapter)) return -EIO; } adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_OPER; dev_info(&adapter->pdev->dev, "vNIC mode enabled\n"); } } return 0; } static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter) { adapter->ahw->idc.err_code = -EIO; dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__); clear_bit(__QLCNIC_RESETTING, &adapter->state); return 0; } /** * qlcnic_83xx_idc_cold_state * * @adapter: adapter structure * * If HW is up and running device will enter READY state. * If firmware image from host needs to be loaded, device is * forced to start with the file firmware image. * * Returns: Error code or Success(0) * **/ static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter) { qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0); qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0); if (qlcnic_load_fw_file) { qlcnic_83xx_idc_restart_hw(adapter, 0); } else { if (qlcnic_83xx_check_hw_status(adapter)) { qlcnic_83xx_idc_enter_failed_state(adapter, 0); return -EIO; } else { qlcnic_83xx_idc_enter_ready_state(adapter, 0); } } return 0; } /** * qlcnic_83xx_idc_init_state * * @adapter: adapter structure * * Reset owner will restart the device from this state. * Device will enter failed state if it remains * in this state for more than DEV_INIT time limit. * * Returns: Error code or Success(0) * **/ static int qlcnic_83xx_idc_init_state(struct qlcnic_adapter *adapter) { int timeout, ret = 0; u32 owner; timeout = QLC_83XX_IDC_INIT_TIMEOUT_SECS; if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) { owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); if (adapter->ahw->pci_func == owner) ret = qlcnic_83xx_idc_restart_hw(adapter, 1); } else { ret = qlcnic_83xx_idc_check_timeout(adapter, timeout); } return ret; } /** * qlcnic_83xx_idc_ready_state * * @adapter: adapter structure * * Perform IDC protocol specicifed actions after monitoring device state and * events. * * Returns: Error code or Success(0) * **/ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; struct qlcnic_mailbox *mbx = ahw->mailbox; int ret = 0; u32 val; /* Perform NIC configuration based ready state entry actions */ if (ahw->idc.state_entry(adapter)) return -EIO; if (qlcnic_check_temp(adapter)) { if (ahw->temp == QLCNIC_TEMP_PANIC) { qlcnic_83xx_idc_check_fan_failure(adapter); dev_err(&adapter->pdev->dev, "Error: device temperature %d above limits\n", adapter->ahw->temp); clear_bit(QLC_83XX_MBX_READY, &mbx->status); set_bit(__QLCNIC_RESETTING, &adapter->state); qlcnic_83xx_idc_detach_driver(adapter); qlcnic_83xx_idc_enter_failed_state(adapter, 1); return -EIO; } } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); ret = qlcnic_83xx_check_heartbeat(adapter); if (ret) { adapter->flags |= QLCNIC_FW_HANG; if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) { clear_bit(QLC_83XX_MBX_READY, &mbx->status); set_bit(__QLCNIC_RESETTING, &adapter->state); qlcnic_83xx_idc_enter_need_reset_state(adapter, 1); } else { netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", __func__); qlcnic_83xx_idc_enter_failed_state(adapter, 1); } return -EIO; } if ((val & QLC_83XX_IDC_GRACEFULL_RESET) || ahw->idc.collect_dump) { clear_bit(QLC_83XX_MBX_READY, &mbx->status); /* Move to need reset state and prepare for reset */ qlcnic_83xx_idc_enter_need_reset_state(adapter, 1); return ret; } /* Check for soft reset request */ if (ahw->reset_context && !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) { adapter->ahw->reset_context = 0; qlcnic_83xx_idc_tx_soft_reset(adapter); return ret; } /* Move to need quiesce state if requested */ if (adapter->ahw->idc.quiesce_req) { qlcnic_83xx_idc_enter_need_quiesce(adapter, 1); qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); return ret; } return ret; } /** * qlcnic_83xx_idc_need_reset_state * * @adapter: adapter structure * * Device will remain in this state until: * Reset request ACK's are received from all the functions * Wait time exceeds max time limit * * Returns: Error code or Success(0) * **/ static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter) { struct qlcnic_mailbox *mbx = adapter->ahw->mailbox; int ret = 0; if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) { qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); set_bit(__QLCNIC_RESETTING, &adapter->state); clear_bit(QLC_83XX_MBX_READY, &mbx->status); if (adapter->ahw->nic_mode == QLCNIC_VNIC_MODE) qlcnic_83xx_disable_vnic_mode(adapter, 1); if (qlcnic_check_diag_status(adapter)) { dev_info(&adapter->pdev->dev, "%s: Wait for diag completion\n", __func__); adapter->ahw->idc.delay_reset = 1; return 0; } else { qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1); qlcnic_83xx_idc_detach_driver(adapter); } } if (qlcnic_check_diag_status(adapter)) { dev_info(&adapter->pdev->dev, "%s: Wait for diag completion\n", __func__); return -1; } else { if (adapter->ahw->idc.delay_reset) { qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1); qlcnic_83xx_idc_detach_driver(adapter); adapter->ahw->idc.delay_reset = 0; } /* Check for ACK from other functions */ ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter); if (ret) { dev_info(&adapter->pdev->dev, "%s: Waiting for reset ACK\n", __func__); return -1; } } /* Transit to INIT state and restart the HW */ qlcnic_83xx_idc_enter_init_state(adapter, 1); return ret; } static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter) { dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__); return 0; } static void qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; u32 val, owner; val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); if (ahw->pci_func == owner) { qlcnic_83xx_stop_hw(adapter); qlcnic_dump_fw(adapter); } } netdev_warn(adapter->netdev, "%s: Reboot will be required to recover the adapter!!\n", __func__); clear_bit(__QLCNIC_RESETTING, &adapter->state); ahw->idc.err_code = -EIO; return; } static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter) { dev_info(&adapter->pdev->dev, "%s: TBD\n", __func__); return 0; } static int qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter *adapter, u32 state) { u32 cur, prev, next; cur = adapter->ahw->idc.curr_state; prev = adapter->ahw->idc.prev_state; next = state; if ((next < QLC_83XX_IDC_DEV_COLD) || (next > QLC_83XX_IDC_DEV_QUISCENT)) { dev_err(&adapter->pdev->dev, "%s: curr %d, prev %d, next state %d is invalid\n", __func__, cur, prev, state); return 1; } if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) && (prev == QLC_83XX_IDC_DEV_UNKNOWN)) { if ((next != QLC_83XX_IDC_DEV_COLD) && (next != QLC_83XX_IDC_DEV_READY)) { dev_err(&adapter->pdev->dev, "%s: failed, cur %d prev %d next %d\n", __func__, cur, prev, next); return 1; } } if (next == QLC_83XX_IDC_DEV_INIT) { if ((prev != QLC_83XX_IDC_DEV_INIT) && (prev != QLC_83XX_IDC_DEV_COLD) && (prev != QLC_83XX_IDC_DEV_NEED_RESET)) { dev_err(&adapter->pdev->dev, "%s: failed, cur %d prev %d next %d\n", __func__, cur, prev, next); return 1; } } return 0; } #define QLC_83XX_ENCAP_TYPE_VXLAN BIT_1 #define QLC_83XX_MATCH_ENCAP_ID BIT_2 #define QLC_83XX_SET_VXLAN_UDP_DPORT BIT_3 #define QLC_83XX_VXLAN_UDP_DPORT(PORT) ((PORT & 0xffff) << 16) #define QLCNIC_ENABLE_INGRESS_ENCAP_PARSING 1 #define QLCNIC_DISABLE_INGRESS_ENCAP_PARSING 0 static int qlcnic_set_vxlan_port(struct qlcnic_adapter *adapter) { u16 port = adapter->ahw->vxlan_port; struct qlcnic_cmd_args cmd; int ret = 0; memset(&cmd, 0, sizeof(cmd)); ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INIT_NIC_FUNC); if (ret) return ret; cmd.req.arg[1] = QLC_83XX_MULTI_TENANCY_INFO; cmd.req.arg[2] = QLC_83XX_ENCAP_TYPE_VXLAN | QLC_83XX_SET_VXLAN_UDP_DPORT | QLC_83XX_VXLAN_UDP_DPORT(port); ret = qlcnic_issue_cmd(adapter, &cmd); if (ret) netdev_err(adapter->netdev, "Failed to set VXLAN port %d in adapter\n", port); qlcnic_free_mbx_args(&cmd); return ret; } static int qlcnic_set_vxlan_parsing(struct qlcnic_adapter *adapter, bool state) { u16 vxlan_port = adapter->ahw->vxlan_port; struct qlcnic_cmd_args cmd; int ret = 0; memset(&cmd, 0, sizeof(cmd)); ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_INGRESS_ENCAP); if (ret) return ret; cmd.req.arg[1] = state ? QLCNIC_ENABLE_INGRESS_ENCAP_PARSING : QLCNIC_DISABLE_INGRESS_ENCAP_PARSING; ret = qlcnic_issue_cmd(adapter, &cmd); if (ret) netdev_err(adapter->netdev, "Failed to %s VXLAN parsing for port %d\n", state ? "enable" : "disable", vxlan_port); else netdev_info(adapter->netdev, "%s VXLAN parsing for port %d\n", state ? "Enabled" : "Disabled", vxlan_port); qlcnic_free_mbx_args(&cmd); return ret; } static void qlcnic_83xx_periodic_tasks(struct qlcnic_adapter *adapter) { if (adapter->fhash.fnum) qlcnic_prune_lb_filters(adapter); if (adapter->flags & QLCNIC_ADD_VXLAN_PORT) { if (qlcnic_set_vxlan_port(adapter)) return; if (qlcnic_set_vxlan_parsing(adapter, true)) return; adapter->flags &= ~QLCNIC_ADD_VXLAN_PORT; } else if (adapter->flags & QLCNIC_DEL_VXLAN_PORT) { if (qlcnic_set_vxlan_parsing(adapter, false)) return; adapter->ahw->vxlan_port = 0; adapter->flags &= ~QLCNIC_DEL_VXLAN_PORT; } } /** * qlcnic_83xx_idc_poll_dev_state * * @work: kernel work queue structure used to schedule the function * * Poll device state periodically and perform state specific * actions defined by Inter Driver Communication (IDC) protocol. * * Returns: None * **/ void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work) { struct qlcnic_adapter *adapter; u32 state; adapter = container_of(work, struct qlcnic_adapter, fw_work.work); state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); if (qlcnic_83xx_idc_check_state_validity(adapter, state)) { qlcnic_83xx_idc_log_state_history(adapter); adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN; } else { adapter->ahw->idc.curr_state = state; } switch (adapter->ahw->idc.curr_state) { case QLC_83XX_IDC_DEV_READY: qlcnic_83xx_idc_ready_state(adapter); break; case QLC_83XX_IDC_DEV_NEED_RESET: qlcnic_83xx_idc_need_reset_state(adapter); break; case QLC_83XX_IDC_DEV_NEED_QUISCENT: qlcnic_83xx_idc_need_quiesce_state(adapter); break; case QLC_83XX_IDC_DEV_FAILED: qlcnic_83xx_idc_failed_state(adapter); return; case QLC_83XX_IDC_DEV_INIT: qlcnic_83xx_idc_init_state(adapter); break; case QLC_83XX_IDC_DEV_QUISCENT: qlcnic_83xx_idc_quiesce_state(adapter); break; default: qlcnic_83xx_idc_unknown_state(adapter); return; } adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state; qlcnic_83xx_periodic_tasks(adapter); /* Re-schedule the function */ if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status)) qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state, adapter->ahw->idc.delay); } static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter) { u32 idc_params, val; if (qlcnic_83xx_flash_read32(adapter, QLC_83XX_IDC_FLASH_PARAM_ADDR, (u8 *)&idc_params, 1)) { dev_info(&adapter->pdev->dev, "%s:failed to get IDC params from flash\n", __func__); adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS; adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS; } else { adapter->dev_init_timeo = idc_params & 0xFFFF; adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF); } adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN; adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN; adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; adapter->ahw->idc.err_code = 0; adapter->ahw->idc.collect_dump = 0; adapter->ahw->idc.name = (char **)qlc_83xx_idc_states; clear_bit(__QLCNIC_RESETTING, &adapter->state); set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); /* Check if reset recovery is disabled */ if (!qlcnic_auto_fw_reset) { /* Propagate do not reset request to other functions */ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY; QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); } } static int qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter) { u32 state, val; if (qlcnic_83xx_lock_driver(adapter)) return -EIO; /* Clear driver lock register */ QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0); if (qlcnic_83xx_idc_update_major_version(adapter, 0)) { qlcnic_83xx_unlock_driver(adapter); return -EIO; } state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); if (qlcnic_83xx_idc_check_state_validity(adapter, state)) { qlcnic_83xx_unlock_driver(adapter); return -EIO; } if (state != QLC_83XX_IDC_DEV_COLD && qlcnic_load_fw_file) { QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_COLD); state = QLC_83XX_IDC_DEV_COLD; } adapter->ahw->idc.curr_state = state; /* First to load function should cold boot the device */ if (state == QLC_83XX_IDC_DEV_COLD) qlcnic_83xx_idc_cold_state_handler(adapter); /* Check if reset recovery is enabled */ if (qlcnic_auto_fw_reset) { val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY; QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); } qlcnic_83xx_unlock_driver(adapter); return 0; } int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter) { int ret = -EIO; qlcnic_83xx_setup_idc_parameters(adapter); if (qlcnic_83xx_get_reset_instruction_template(adapter)) return ret; if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) { if (qlcnic_83xx_idc_first_to_load_function_handler(adapter)) return -EIO; } else { if (qlcnic_83xx_idc_check_major_version(adapter)) return -EIO; } qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1); return 0; } void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter) { int id; u32 val; while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) usleep_range(10000, 11000); id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID); id = id & 0xFF; if (id == adapter->portnum) { dev_err(&adapter->pdev->dev, "%s: wait for lock recovery.. %d\n", __func__, id); msleep(20); id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID); id = id & 0xFF; } /* Clear driver presence bit */ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); val = val & ~(1 << adapter->portnum); QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val); clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); clear_bit(__QLCNIC_RESETTING, &adapter->state); cancel_delayed_work_sync(&adapter->fw_work); } void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key) { u32 val; if (qlcnic_sriov_vf_check(adapter)) return; if (qlcnic_83xx_lock_driver(adapter)) { dev_err(&adapter->pdev->dev, "%s:failed, please retry\n", __func__); return; } val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", __func__); qlcnic_83xx_idc_enter_failed_state(adapter, 0); qlcnic_83xx_unlock_driver(adapter); return; } if (key == QLCNIC_FORCE_FW_RESET) { val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); val = val | QLC_83XX_IDC_GRACEFULL_RESET; QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val); } else if (key == QLCNIC_FORCE_FW_DUMP_KEY) { adapter->ahw->idc.collect_dump = 1; } qlcnic_83xx_unlock_driver(adapter); return; } static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter) { u8 *p_cache; u32 src, size; u64 dest; int ret = -EIO; src = QLC_83XX_BOOTLOADER_FLASH_ADDR; dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR); size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE); /* alignment check */ if (size & 0xF) size = (size + 16) & ~0xF; p_cache = vzalloc(size); if (p_cache == NULL) return -ENOMEM; ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache, size / sizeof(u32)); if (ret) { vfree(p_cache); return ret; } /* 16 byte write to MS memory */ ret = qlcnic_ms_mem_write128(adapter, dest, (u32 *)p_cache, size / 16); if (ret) { vfree(p_cache); return ret; } vfree(p_cache); return ret; } static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter) { struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info; const struct firmware *fw = fw_info->fw; u32 dest, *p_cache, *temp; int i, ret = -EIO; __le32 *temp_le; u8 data[16]; size_t size; u64 addr; temp = vzalloc(fw->size); if (!temp) { release_firmware(fw); fw_info->fw = NULL; return -ENOMEM; } temp_le = (__le32 *)fw->data; /* FW image in file is in little endian, swap the data to nullify * the effect of writel() operation on big endian platform. */ for (i = 0; i < fw->size / sizeof(u32); i++) temp[i] = __le32_to_cpu(temp_le[i]); dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR); size = (fw->size & ~0xF); p_cache = temp; addr = (u64)dest; ret = qlcnic_ms_mem_write128(adapter, addr, p_cache, size / 16); if (ret) { dev_err(&adapter->pdev->dev, "MS memory write failed\n"); goto exit; } /* alignment check */ if (fw->size & 0xF) { addr = dest + size; for (i = 0; i < (fw->size & 0xF); i++) data[i] = ((u8 *)temp)[size + i]; for (; i < 16; i++) data[i] = 0; ret = qlcnic_ms_mem_write128(adapter, addr, (u32 *)data, 1); if (ret) { dev_err(&adapter->pdev->dev, "MS memory write failed\n"); goto exit; } } exit: release_firmware(fw); fw_info->fw = NULL; vfree(temp); return ret; } static void qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter *adapter) { int i, j; u32 val = 0, val1 = 0, reg = 0; int err = 0; val = QLCRD32(adapter, QLC_83XX_SRE_SHIM_REG, &err); if (err == -EIO) return; dev_info(&adapter->pdev->dev, "SRE-Shim Ctrl:0x%x\n", val); for (j = 0; j < 2; j++) { if (j == 0) { dev_info(&adapter->pdev->dev, "Port 0 RxB Pause Threshold Regs[TC7..TC0]:"); reg = QLC_83XX_PORT0_THRESHOLD; } else if (j == 1) { dev_info(&adapter->pdev->dev, "Port 1 RxB Pause Threshold Regs[TC7..TC0]:"); reg = QLC_83XX_PORT1_THRESHOLD; } for (i = 0; i < 8; i++) { val = QLCRD32(adapter, reg + (i * 0x4), &err); if (err == -EIO) return; dev_info(&adapter->pdev->dev, "0x%x ", val); } dev_info(&adapter->pdev->dev, "\n"); } for (j = 0; j < 2; j++) { if (j == 0) { dev_info(&adapter->pdev->dev, "Port 0 RxB TC Max Cell Registers[4..1]:"); reg = QLC_83XX_PORT0_TC_MC_REG; } else if (j == 1) { dev_info(&adapter->pdev->dev, "Port 1 RxB TC Max Cell Registers[4..1]:"); reg = QLC_83XX_PORT1_TC_MC_REG; } for (i = 0; i < 4; i++) { val = QLCRD32(adapter, reg + (i * 0x4), &err); if (err == -EIO) return; dev_info(&adapter->pdev->dev, "0x%x ", val); } dev_info(&adapter->pdev->dev, "\n"); } for (j = 0; j < 2; j++) { if (j == 0) { dev_info(&adapter->pdev->dev, "Port 0 RxB Rx TC Stats[TC7..TC0]:"); reg = QLC_83XX_PORT0_TC_STATS; } else if (j == 1) { dev_info(&adapter->pdev->dev, "Port 1 RxB Rx TC Stats[TC7..TC0]:"); reg = QLC_83XX_PORT1_TC_STATS; } for (i = 7; i >= 0; i--) { val = QLCRD32(adapter, reg, &err); if (err == -EIO) return; val &= ~(0x7 << 29); /* Reset bits 29 to 31 */ QLCWR32(adapter, reg, (val | (i << 29))); val = QLCRD32(adapter, reg, &err); if (err == -EIO) return; dev_info(&adapter->pdev->dev, "0x%x ", val); } dev_info(&adapter->pdev->dev, "\n"); } val = QLCRD32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, &err); if (err == -EIO) return; val1 = QLCRD32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, &err); if (err == -EIO) return; dev_info(&adapter->pdev->dev, "IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n", val, val1); } static void qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter *adapter) { u32 reg = 0, i, j; if (qlcnic_83xx_lock_driver(adapter)) { dev_err(&adapter->pdev->dev, "%s:failed to acquire driver lock\n", __func__); return; } qlcnic_83xx_dump_pause_control_regs(adapter); QLCWR32(adapter, QLC_83XX_SRE_SHIM_REG, 0x0); for (j = 0; j < 2; j++) { if (j == 0) reg = QLC_83XX_PORT0_THRESHOLD; else if (j == 1) reg = QLC_83XX_PORT1_THRESHOLD; for (i = 0; i < 8; i++) QLCWR32(adapter, reg + (i * 0x4), 0x0); } for (j = 0; j < 2; j++) { if (j == 0) reg = QLC_83XX_PORT0_TC_MC_REG; else if (j == 1) reg = QLC_83XX_PORT1_TC_MC_REG; for (i = 0; i < 4; i++) QLCWR32(adapter, reg + (i * 0x4), 0x03FF03FF); } QLCWR32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, 0); QLCWR32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, 0); dev_info(&adapter->pdev->dev, "Disabled pause frames successfully on all ports\n"); qlcnic_83xx_unlock_driver(adapter); } static void qlcnic_83xx_take_eport_out_of_reset(struct qlcnic_adapter *adapter) { QLCWR32(adapter, QLC_83XX_RESET_REG, 0); QLCWR32(adapter, QLC_83XX_RESET_PORT0, 0); QLCWR32(adapter, QLC_83XX_RESET_PORT1, 0); QLCWR32(adapter, QLC_83XX_RESET_PORT2, 0); QLCWR32(adapter, QLC_83XX_RESET_PORT3, 0); QLCWR32(adapter, QLC_83XX_RESET_SRESHIM, 0); QLCWR32(adapter, QLC_83XX_RESET_EPGSHIM, 0); QLCWR32(adapter, QLC_83XX_RESET_ETHERPCS, 0); QLCWR32(adapter, QLC_83XX_RESET_CONTROL, 1); } static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev) { u32 heartbeat, peg_status; int retries, ret = -EIO, err = 0; retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT; p_dev->heartbeat = QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_ALIVE_COUNTER); do { msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS); heartbeat = QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_ALIVE_COUNTER); if (heartbeat != p_dev->heartbeat) { ret = QLCNIC_RCODE_SUCCESS; break; } } while (--retries); if (ret) { dev_err(&p_dev->pdev->dev, "firmware hang detected\n"); qlcnic_83xx_take_eport_out_of_reset(p_dev); qlcnic_83xx_disable_pause_frames(p_dev); peg_status = QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_HALT_STATUS1); dev_info(&p_dev->pdev->dev, "Dumping HW/FW registers\n" "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" "PEG_NET_4_PC: 0x%x\n", peg_status, QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_HALT_STATUS2), QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_0, &err), QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_1, &err), QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_2, &err), QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_3, &err), QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_4, &err)); if (QLCNIC_FWERROR_CODE(peg_status) == 0x67) dev_err(&p_dev->pdev->dev, "Device is being reset err code 0x00006700.\n"); } return ret; } static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev) { int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT; u32 val; do { val = QLC_SHARED_REG_RD32(p_dev, QLCNIC_CMDPEG_STATE); if (val == QLC_83XX_CMDPEG_COMPLETE) return 0; msleep(QLCNIC_CMDPEG_CHECK_DELAY); } while (--retries); dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val); return -EIO; } static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev) { int err; err = qlcnic_83xx_check_cmd_peg_status(p_dev); if (err) return err; err = qlcnic_83xx_check_heartbeat(p_dev); if (err) return err; return err; } static int qlcnic_83xx_poll_reg(struct qlcnic_adapter *p_dev, u32 addr, int duration, u32 mask, u32 status) { int timeout_error, err = 0; u32 value; u8 retries; value = QLCRD32(p_dev, addr, &err); if (err == -EIO) return err; retries = duration / 10; do { if ((value & mask) != status) { timeout_error = 1; msleep(duration / 10); value = QLCRD32(p_dev, addr, &err); if (err == -EIO) return err; } else { timeout_error = 0; break; } } while (retries--); if (timeout_error) { p_dev->ahw->reset.seq_error++; dev_err(&p_dev->pdev->dev, "%s: Timeout Err, entry_num = %d\n", __func__, p_dev->ahw->reset.seq_index); dev_err(&p_dev->pdev->dev, "0x%08x 0x%08x 0x%08x\n", value, mask, status); } return timeout_error; } static int qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter *p_dev) { u32 sum = 0; u16 *buff = (u16 *)p_dev->ahw->reset.buff; int count = p_dev->ahw->reset.hdr->size / sizeof(u16); while (count-- > 0) sum += *buff++; while (sum >> 16) sum = (sum & 0xFFFF) + (sum >> 16); if (~sum) { return 0; } else { dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); return -1; } } static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev) { struct qlcnic_hardware_context *ahw = p_dev->ahw; u32 addr, count, prev_ver, curr_ver; u8 *p_buff; if (ahw->reset.buff != NULL) { prev_ver = p_dev->fw_version; curr_ver = qlcnic_83xx_get_fw_version(p_dev); if (curr_ver > prev_ver) kfree(ahw->reset.buff); else return 0; } ahw->reset.seq_error = 0; ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL); if (p_dev->ahw->reset.buff == NULL) return -ENOMEM; p_buff = p_dev->ahw->reset.buff; addr = QLC_83XX_RESET_TEMPLATE_ADDR; count = sizeof(struct qlc_83xx_reset_hdr) / sizeof(u32); /* Copy template header from flash */ if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) { dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__); return -EIO; } ahw->reset.hdr = (struct qlc_83xx_reset_hdr *)ahw->reset.buff; addr = QLC_83XX_RESET_TEMPLATE_ADDR + ahw->reset.hdr->hdr_size; p_buff = ahw->reset.buff + ahw->reset.hdr->hdr_size; count = (ahw->reset.hdr->size - ahw->reset.hdr->hdr_size) / sizeof(u32); /* Copy rest of the template */ if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) { dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__); return -EIO; } if (qlcnic_83xx_reset_template_checksum(p_dev)) return -EIO; /* Get Stop, Start and Init command offsets */ ahw->reset.init_offset = ahw->reset.buff + ahw->reset.hdr->init_offset; ahw->reset.start_offset = ahw->reset.buff + ahw->reset.hdr->start_offset; ahw->reset.stop_offset = ahw->reset.buff + ahw->reset.hdr->hdr_size; return 0; } /* Read Write HW register command */ static void qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter *p_dev, u32 raddr, u32 waddr) { int err = 0; u32 value; value = QLCRD32(p_dev, raddr, &err); if (err == -EIO) return; qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value); } /* Read Modify Write HW register command */ static void qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter *p_dev, u32 raddr, u32 waddr, struct qlc_83xx_rmw *p_rmw_hdr) { int err = 0; u32 value; if (p_rmw_hdr->index_a) { value = p_dev->ahw->reset.array[p_rmw_hdr->index_a]; } else { value = QLCRD32(p_dev, raddr, &err); if (err == -EIO) return; } value &= p_rmw_hdr->mask; value <<= p_rmw_hdr->shl; value >>= p_rmw_hdr->shr; value |= p_rmw_hdr->or_value; value ^= p_rmw_hdr->xor_value; qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value); } /* Write HW register command */ static void qlcnic_83xx_write_list(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { int i; struct qlc_83xx_entry *entry; entry = (struct qlc_83xx_entry *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); for (i = 0; i < p_hdr->count; i++, entry++) { qlcnic_83xx_wrt_reg_indirect(p_dev, entry->arg1, entry->arg2); if (p_hdr->delay) udelay((u32)(p_hdr->delay)); } } /* Read and Write instruction */ static void qlcnic_83xx_read_write_list(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { int i; struct qlc_83xx_entry *entry; entry = (struct qlc_83xx_entry *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); for (i = 0; i < p_hdr->count; i++, entry++) { qlcnic_83xx_read_write_crb_reg(p_dev, entry->arg1, entry->arg2); if (p_hdr->delay) udelay((u32)(p_hdr->delay)); } } /* Poll HW register command */ static void qlcnic_83xx_poll_list(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { long delay; struct qlc_83xx_entry *entry; struct qlc_83xx_poll *poll; int i, err = 0; unsigned long arg1, arg2; poll = (struct qlc_83xx_poll *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); entry = (struct qlc_83xx_entry *)((char *)poll + sizeof(struct qlc_83xx_poll)); delay = (long)p_hdr->delay; if (!delay) { for (i = 0; i < p_hdr->count; i++, entry++) qlcnic_83xx_poll_reg(p_dev, entry->arg1, delay, poll->mask, poll->status); } else { for (i = 0; i < p_hdr->count; i++, entry++) { arg1 = entry->arg1; arg2 = entry->arg2; if (delay) { if (qlcnic_83xx_poll_reg(p_dev, arg1, delay, poll->mask, poll->status)){ QLCRD32(p_dev, arg1, &err); if (err == -EIO) return; QLCRD32(p_dev, arg2, &err); if (err == -EIO) return; } } } } } /* Poll and write HW register command */ static void qlcnic_83xx_poll_write_list(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { int i; long delay; struct qlc_83xx_quad_entry *entry; struct qlc_83xx_poll *poll; poll = (struct qlc_83xx_poll *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); entry = (struct qlc_83xx_quad_entry *)((char *)poll + sizeof(struct qlc_83xx_poll)); delay = (long)p_hdr->delay; for (i = 0; i < p_hdr->count; i++, entry++) { qlcnic_83xx_wrt_reg_indirect(p_dev, entry->dr_addr, entry->dr_value); qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr, entry->ar_value); if (delay) qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay, poll->mask, poll->status); } } /* Read Modify Write register command */ static void qlcnic_83xx_read_modify_write(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { int i; struct qlc_83xx_entry *entry; struct qlc_83xx_rmw *rmw_hdr; rmw_hdr = (struct qlc_83xx_rmw *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); entry = (struct qlc_83xx_entry *)((char *)rmw_hdr + sizeof(struct qlc_83xx_rmw)); for (i = 0; i < p_hdr->count; i++, entry++) { qlcnic_83xx_rmw_crb_reg(p_dev, entry->arg1, entry->arg2, rmw_hdr); if (p_hdr->delay) udelay((u32)(p_hdr->delay)); } } static void qlcnic_83xx_pause(struct qlc_83xx_entry_hdr *p_hdr) { if (p_hdr->delay) mdelay((u32)((long)p_hdr->delay)); } /* Read and poll register command */ static void qlcnic_83xx_poll_read_list(struct qlcnic_adapter *p_dev, struct qlc_83xx_entry_hdr *p_hdr) { long delay; int index, i, j, err; struct qlc_83xx_quad_entry *entry; struct qlc_83xx_poll *poll; unsigned long addr; poll = (struct qlc_83xx_poll *)((char *)p_hdr + sizeof(struct qlc_83xx_entry_hdr)); entry = (struct qlc_83xx_quad_entry *)((char *)poll + sizeof(struct qlc_83xx_poll)); delay = (long)p_hdr->delay; for (i = 0; i < p_hdr->count; i++, entry++) { qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr, entry->ar_value); if (delay) { if (!qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay, poll->mask, poll->status)){ index = p_dev->ahw->reset.array_index; addr = entry->dr_addr; j = QLCRD32(p_dev, addr, &err); if (err == -EIO) return; p_dev->ahw->reset.array[index++] = j; if (index == QLC_83XX_MAX_RESET_SEQ_ENTRIES) p_dev->ahw->reset.array_index = 1; } } } } static inline void qlcnic_83xx_seq_end(struct qlcnic_adapter *p_dev) { p_dev->ahw->reset.seq_end = 1; } static void qlcnic_83xx_template_end(struct qlcnic_adapter *p_dev) { p_dev->ahw->reset.template_end = 1; if (p_dev->ahw->reset.seq_error == 0) dev_err(&p_dev->pdev->dev, "HW restart process completed successfully.\n"); else dev_err(&p_dev->pdev->dev, "HW restart completed with timeout errors.\n"); } /** * qlcnic_83xx_exec_template_cmd * * @p_dev: adapter structure * @p_buff: Poiter to instruction template * * Template provides instructions to stop, restart and initalize firmware. * These instructions are abstracted as a series of read, write and * poll operations on hardware registers. Register information and operation * specifics are not exposed to the driver. Driver reads the template from * flash and executes the instructions located at pre-defined offsets. * * Returns: None * */ static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev, char *p_buff) { int index, entries; struct qlc_83xx_entry_hdr *p_hdr; char *entry = p_buff; p_dev->ahw->reset.seq_end = 0; p_dev->ahw->reset.template_end = 0; entries = p_dev->ahw->reset.hdr->entries; index = p_dev->ahw->reset.seq_index; for (; (!p_dev->ahw->reset.seq_end) && (index < entries); index++) { p_hdr = (struct qlc_83xx_entry_hdr *)entry; switch (p_hdr->cmd) { case QLC_83XX_OPCODE_NOP: break; case QLC_83XX_OPCODE_WRITE_LIST: qlcnic_83xx_write_list(p_dev, p_hdr); break; case QLC_83XX_OPCODE_READ_WRITE_LIST: qlcnic_83xx_read_write_list(p_dev, p_hdr); break; case QLC_83XX_OPCODE_POLL_LIST: qlcnic_83xx_poll_list(p_dev, p_hdr); break; case QLC_83XX_OPCODE_POLL_WRITE_LIST: qlcnic_83xx_poll_write_list(p_dev, p_hdr); break; case QLC_83XX_OPCODE_READ_MODIFY_WRITE: qlcnic_83xx_read_modify_write(p_dev, p_hdr); break; case QLC_83XX_OPCODE_SEQ_PAUSE: qlcnic_83xx_pause(p_hdr); break; case QLC_83XX_OPCODE_SEQ_END: qlcnic_83xx_seq_end(p_dev); break; case QLC_83XX_OPCODE_TMPL_END: qlcnic_83xx_template_end(p_dev); break; case QLC_83XX_OPCODE_POLL_READ_LIST: qlcnic_83xx_poll_read_list(p_dev, p_hdr); break; default: dev_err(&p_dev->pdev->dev, "%s: Unknown opcode 0x%04x in template %d\n", __func__, p_hdr->cmd, index); break; } entry += p_hdr->size; } p_dev->ahw->reset.seq_index = index; } static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev) { p_dev->ahw->reset.seq_index = 0; qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.stop_offset); if (p_dev->ahw->reset.seq_end != 1) dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); } static void qlcnic_83xx_start_hw(struct qlcnic_adapter *p_dev) { qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.start_offset); if (p_dev->ahw->reset.template_end != 1) dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); } static void qlcnic_83xx_init_hw(struct qlcnic_adapter *p_dev) { qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.init_offset); if (p_dev->ahw->reset.seq_end != 1) dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__); } /* POST FW related definations*/ #define QLC_83XX_POST_SIGNATURE_REG 0x41602014 #define QLC_83XX_POST_MODE_REG 0x41602018 #define QLC_83XX_POST_FAST_MODE 0 #define QLC_83XX_POST_MEDIUM_MODE 1 #define QLC_83XX_POST_SLOW_MODE 2 /* POST Timeout values in milliseconds */ #define QLC_83XX_POST_FAST_MODE_TIMEOUT 690 #define QLC_83XX_POST_MED_MODE_TIMEOUT 2930 #define QLC_83XX_POST_SLOW_MODE_TIMEOUT 7500 /* POST result values */ #define QLC_83XX_POST_PASS 0xfffffff0 #define QLC_83XX_POST_ASIC_STRESS_TEST_FAIL 0xffffffff #define QLC_83XX_POST_DDR_TEST_FAIL 0xfffffffe #define QLC_83XX_POST_ASIC_MEMORY_TEST_FAIL 0xfffffffc #define QLC_83XX_POST_FLASH_TEST_FAIL 0xfffffff8 static int qlcnic_83xx_run_post(struct qlcnic_adapter *adapter) { struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info; struct device *dev = &adapter->pdev->dev; int timeout, count, ret = 0; u32 signature; /* Set timeout values with extra 2 seconds of buffer */ switch (adapter->ahw->post_mode) { case QLC_83XX_POST_FAST_MODE: timeout = QLC_83XX_POST_FAST_MODE_TIMEOUT + 2000; break; case QLC_83XX_POST_MEDIUM_MODE: timeout = QLC_83XX_POST_MED_MODE_TIMEOUT + 2000; break; case QLC_83XX_POST_SLOW_MODE: timeout = QLC_83XX_POST_SLOW_MODE_TIMEOUT + 2000; break; default: return -EINVAL; } strncpy(fw_info->fw_file_name, QLC_83XX_POST_FW_FILE_NAME, QLC_FW_FILE_NAME_LEN); ret = request_firmware(&fw_info->fw, fw_info->fw_file_name, dev); if (ret) { dev_err(dev, "POST firmware can not be loaded, skipping POST\n"); return 0; } ret = qlcnic_83xx_copy_fw_file(adapter); if (ret) return ret; /* clear QLC_83XX_POST_SIGNATURE_REG register */ qlcnic_ind_wr(adapter, QLC_83XX_POST_SIGNATURE_REG, 0); /* Set POST mode */ qlcnic_ind_wr(adapter, QLC_83XX_POST_MODE_REG, adapter->ahw->post_mode); QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLC_83XX_BOOT_FROM_FILE); qlcnic_83xx_start_hw(adapter); count = 0; do { msleep(100); count += 100; signature = qlcnic_ind_rd(adapter, QLC_83XX_POST_SIGNATURE_REG); if (signature == QLC_83XX_POST_PASS) break; } while (timeout > count); if (timeout <= count) { dev_err(dev, "POST timed out, signature = 0x%08x\n", signature); return -EIO; } switch (signature) { case QLC_83XX_POST_PASS: dev_info(dev, "POST passed, Signature = 0x%08x\n", signature); break; case QLC_83XX_POST_ASIC_STRESS_TEST_FAIL: dev_err(dev, "POST failed, Test case : ASIC STRESS TEST, Signature = 0x%08x\n", signature); ret = -EIO; break; case QLC_83XX_POST_DDR_TEST_FAIL: dev_err(dev, "POST failed, Test case : DDT TEST, Signature = 0x%08x\n", signature); ret = -EIO; break; case QLC_83XX_POST_ASIC_MEMORY_TEST_FAIL: dev_err(dev, "POST failed, Test case : ASIC MEMORY TEST, Signature = 0x%08x\n", signature); ret = -EIO; break; case QLC_83XX_POST_FLASH_TEST_FAIL: dev_err(dev, "POST failed, Test case : FLASH TEST, Signature = 0x%08x\n", signature); ret = -EIO; break; default: dev_err(dev, "POST failed, Test case : INVALID, Signature = 0x%08x\n", signature); ret = -EIO; break; } return ret; } static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter) { struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info; int err = -EIO; if (request_firmware(&fw_info->fw, fw_info->fw_file_name, &(adapter->pdev->dev))) { dev_err(&adapter->pdev->dev, "No file FW image, loading flash FW image.\n"); QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLC_83XX_BOOT_FROM_FLASH); } else { if (qlcnic_83xx_copy_fw_file(adapter)) return err; QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLC_83XX_BOOT_FROM_FILE); } return 0; } static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter) { u32 val; int err = -EIO; qlcnic_83xx_stop_hw(adapter); /* Collect FW register dump if required */ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL); if (!(val & QLC_83XX_IDC_GRACEFULL_RESET)) qlcnic_dump_fw(adapter); if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) { netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n", __func__); qlcnic_83xx_idc_enter_failed_state(adapter, 1); return err; } qlcnic_83xx_init_hw(adapter); if (qlcnic_83xx_copy_bootloader(adapter)) return err; /* Check if POST needs to be run */ if (adapter->ahw->run_post) { err = qlcnic_83xx_run_post(adapter); if (err) return err; /* No need to run POST in next reset sequence */ adapter->ahw->run_post = false; /* Again reset the adapter to load regular firmware */ qlcnic_83xx_stop_hw(adapter); qlcnic_83xx_init_hw(adapter); err = qlcnic_83xx_copy_bootloader(adapter); if (err) return err; } /* Boot either flash image or firmware image from host file system */ if (qlcnic_load_fw_file == 1) { if (qlcnic_83xx_load_fw_image_from_host(adapter)) return err; } else { QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLC_83XX_BOOT_FROM_FLASH); } qlcnic_83xx_start_hw(adapter); if (qlcnic_83xx_check_hw_status(adapter)) return -EIO; return 0; } static int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter) { int err; struct qlcnic_info nic_info; struct qlcnic_hardware_context *ahw = adapter->ahw; memset(&nic_info, 0, sizeof(struct qlcnic_info)); err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func); if (err) return -EIO; ahw->physical_port = (u8) nic_info.phys_port; ahw->switch_mode = nic_info.switch_mode; ahw->max_tx_ques = nic_info.max_tx_ques; ahw->max_rx_ques = nic_info.max_rx_ques; ahw->capabilities = nic_info.capabilities; ahw->max_mac_filters = nic_info.max_mac_filters; ahw->max_mtu = nic_info.max_mtu; /* eSwitch capability indicates vNIC mode. * vNIC and SRIOV are mutually exclusive operational modes. * If SR-IOV capability is detected, SR-IOV physical function * will get initialized in default mode. * SR-IOV virtual function initialization follows a * different code path and opmode. * SRIOV mode has precedence over vNIC mode. */ if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state)) return QLC_83XX_DEFAULT_OPMODE; if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY) return QLCNIC_VNIC_MODE; return QLC_83XX_DEFAULT_OPMODE; } int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; u16 max_sds_rings, max_tx_rings; int ret; ret = qlcnic_83xx_get_nic_configuration(adapter); if (ret == -EIO) return -EIO; if (ret == QLCNIC_VNIC_MODE) { ahw->nic_mode = QLCNIC_VNIC_MODE; if (qlcnic_83xx_config_vnic_opmode(adapter)) return -EIO; max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS; max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS; } else if (ret == QLC_83XX_DEFAULT_OPMODE) { ahw->nic_mode = QLCNIC_DEFAULT_MODE; adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver; ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry; max_sds_rings = QLCNIC_MAX_SDS_RINGS; max_tx_rings = QLCNIC_MAX_TX_RINGS; } else { dev_err(&adapter->pdev->dev, "%s: Invalid opmode %d\n", __func__, ret); return -EIO; } adapter->max_sds_rings = min(ahw->max_rx_ques, max_sds_rings); adapter->max_tx_rings = min(ahw->max_tx_ques, max_tx_rings); return 0; } static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; if (ahw->port_type == QLCNIC_XGBE) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; } else if (ahw->port_type == QLCNIC_GBE) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G; } adapter->num_txd = MAX_CMD_DESCRIPTORS; adapter->max_rds_rings = MAX_RDS_RINGS; } static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter) { int err = -EIO; qlcnic_83xx_get_minidump_template(adapter); if (qlcnic_83xx_get_port_info(adapter)) return err; qlcnic_83xx_config_buff_descriptors(adapter); adapter->ahw->msix_supported = !!qlcnic_use_msi_x; adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; dev_info(&adapter->pdev->dev, "HAL Version: %d\n", adapter->ahw->fw_hal_version); return 0; } #define IS_QLC_83XX_USED(a, b, c) (((1 << a->portnum) & b) || ((c >> 6) & 0x1)) static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter) { struct qlcnic_cmd_args cmd; u32 presence_mask, audit_mask; int status; presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE); audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT); if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) { status = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_STOP_NIC_FUNC); if (status) return; cmd.req.arg[1] = BIT_31; status = qlcnic_issue_cmd(adapter, &cmd); if (status) dev_err(&adapter->pdev->dev, "Failed to clean up the function resources\n"); qlcnic_free_mbx_args(&cmd); } } static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; struct pci_dev *pdev = adapter->pdev; struct qlc_83xx_fw_info *fw_info; int err = 0; ahw->fw_info = kzalloc(sizeof(*fw_info), GFP_KERNEL); if (!ahw->fw_info) { err = -ENOMEM; } else { fw_info = ahw->fw_info; switch (pdev->device) { case PCI_DEVICE_ID_QLOGIC_QLE834X: case PCI_DEVICE_ID_QLOGIC_QLE8830: strncpy(fw_info->fw_file_name, QLC_83XX_FW_FILE_NAME, QLC_FW_FILE_NAME_LEN); break; case PCI_DEVICE_ID_QLOGIC_QLE844X: strncpy(fw_info->fw_file_name, QLC_84XX_FW_FILE_NAME, QLC_FW_FILE_NAME_LEN); break; default: dev_err(&pdev->dev, "%s: Invalid device id\n", __func__); err = -EINVAL; break; } } return err; } static void qlcnic_83xx_init_rings(struct qlcnic_adapter *adapter) { u8 rx_cnt = QLCNIC_DEF_SDS_RINGS; u8 tx_cnt = QLCNIC_DEF_TX_RINGS; adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS; adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS; if (!adapter->ahw->msix_supported) { rx_cnt = QLCNIC_SINGLE_RING; tx_cnt = QLCNIC_SINGLE_RING; } /* compute and set drv sds rings */ qlcnic_set_tx_ring_count(adapter, tx_cnt); qlcnic_set_sds_ring_count(adapter, rx_cnt); } int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac) { struct qlcnic_hardware_context *ahw = adapter->ahw; int err = 0; adapter->rx_mac_learn = false; ahw->msix_supported = !!qlcnic_use_msi_x; /* Check if POST needs to be run */ switch (qlcnic_load_fw_file) { case 2: ahw->post_mode = QLC_83XX_POST_FAST_MODE; ahw->run_post = true; break; case 3: ahw->post_mode = QLC_83XX_POST_MEDIUM_MODE; ahw->run_post = true; break; case 4: ahw->post_mode = QLC_83XX_POST_SLOW_MODE; ahw->run_post = true; break; default: ahw->run_post = false; break; } qlcnic_83xx_init_rings(adapter); err = qlcnic_83xx_init_mailbox_work(adapter); if (err) goto exit; if (qlcnic_sriov_vf_check(adapter)) { err = qlcnic_sriov_vf_init(adapter, pci_using_dac); if (err) goto detach_mbx; else return err; } if (qlcnic_83xx_read_flash_descriptor_table(adapter) || qlcnic_83xx_read_flash_mfg_id(adapter)) { dev_err(&adapter->pdev->dev, "Failed reading flash mfg id\n"); err = -ENOTRECOVERABLE; goto detach_mbx; } err = qlcnic_83xx_check_hw_status(adapter); if (err) goto detach_mbx; err = qlcnic_83xx_get_fw_info(adapter); if (err) goto detach_mbx; err = qlcnic_83xx_idc_init(adapter); if (err) goto detach_mbx; err = qlcnic_setup_intr(adapter); if (err) { dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n"); goto disable_intr; } INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work); err = qlcnic_83xx_setup_mbx_intr(adapter); if (err) goto disable_mbx_intr; qlcnic_83xx_clear_function_resources(adapter); qlcnic_dcb_enable(adapter->dcb); qlcnic_83xx_initialize_nic(adapter, 1); qlcnic_dcb_get_info(adapter->dcb); /* Configure default, SR-IOV or Virtual NIC mode of operation */ err = qlcnic_83xx_configure_opmode(adapter); if (err) goto disable_mbx_intr; /* Perform operating mode specific initialization */ err = adapter->nic_ops->init_driver(adapter); if (err) goto disable_mbx_intr; /* Periodically monitor device status */ qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work); return 0; disable_mbx_intr: qlcnic_83xx_free_mbx_intr(adapter); disable_intr: qlcnic_teardown_intr(adapter); detach_mbx: qlcnic_83xx_detach_mailbox_work(adapter); qlcnic_83xx_free_mailbox(ahw->mailbox); ahw->mailbox = NULL; exit: return err; } void qlcnic_83xx_aer_stop_poll_work(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; struct qlc_83xx_idc *idc = &ahw->idc; clear_bit(QLC_83XX_MBX_READY, &idc->status); cancel_delayed_work_sync(&adapter->fw_work); if (ahw->nic_mode == QLCNIC_VNIC_MODE) qlcnic_83xx_disable_vnic_mode(adapter, 1); qlcnic_83xx_idc_detach_driver(adapter); qlcnic_83xx_initialize_nic(adapter, 0); cancel_delayed_work_sync(&adapter->idc_aen_work); } int qlcnic_83xx_aer_reset(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; struct qlc_83xx_idc *idc = &ahw->idc; int ret = 0; u32 owner; /* Mark the previous IDC state as NEED_RESET so * that state_entry() will perform the reattachment * and bringup the device */ idc->prev_state = QLC_83XX_IDC_DEV_NEED_RESET; owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); if (ahw->pci_func == owner) { ret = qlcnic_83xx_restart_hw(adapter); if (ret < 0) return ret; qlcnic_83xx_idc_clear_registers(adapter, 0); } ret = idc->state_entry(adapter); return ret; } void qlcnic_83xx_aer_start_poll_work(struct qlcnic_adapter *adapter) { struct qlcnic_hardware_context *ahw = adapter->ahw; struct qlc_83xx_idc *idc = &ahw->idc; u32 owner; idc->prev_state = QLC_83XX_IDC_DEV_READY; owner = qlcnic_83xx_idc_find_reset_owner_id(adapter); if (ahw->pci_func == owner) qlcnic_83xx_idc_enter_ready_state(adapter, 0); qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state, 0); }
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