From: Sucheta Chakraborty Date: Mon, 4 Nov 2013 18:31:29 +0000 (-0500) Subject: qlcnic: Register netdev in FAILED state for 83xx/84xx X-Git-Tag: upstream/snapshot3+hdmi~3994^2~69^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=78ea2d977a11b2435d733628463cf1274cf40531;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git qlcnic: Register netdev in FAILED state for 83xx/84xx o Without failing probe, register netdev when device is in FAILED state. o Device will come up with minimum functionality and allow diagnostics and repair of the adapter. Signed-off-by: Sucheta Chakraborty Signed-off-by: Himanshu Madhani Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h index 0c2405d..db83edf 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h @@ -961,6 +961,7 @@ struct qlcnic_ipaddr { #define __QLCNIC_SRIOV_CAPABLE 11 #define __QLCNIC_MBX_POLL_ENABLE 12 #define __QLCNIC_DIAG_MODE 13 +#define __QLCNIC_MAINTENANCE_MODE 16 #define QLCNIC_INTERRUPT_TEST 1 #define QLCNIC_LOOPBACK_TEST 2 diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index a44b939..359e0f2 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -325,7 +325,8 @@ inline void qlcnic_83xx_clear_legacy_intr_mask(struct qlcnic_adapter *adapter) inline void qlcnic_83xx_set_legacy_intr_mask(struct qlcnic_adapter *adapter) { - writel(1, adapter->tgt_mask_reg); + if (adapter->tgt_mask_reg) + writel(1, adapter->tgt_mask_reg); } /* Enable MSI-x and INT-x interrupts */ @@ -498,8 +499,11 @@ void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *adapter) num_msix = 0; msleep(20); - synchronize_irq(adapter->msix_entries[num_msix].vector); - free_irq(adapter->msix_entries[num_msix].vector, adapter); + + if (adapter->msix_entries) { + synchronize_irq(adapter->msix_entries[num_msix].vector); + free_irq(adapter->msix_entries[num_msix].vector, adapter); + } } int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter) @@ -760,6 +764,9 @@ int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *adapter, int cmd_type, err, opcode; unsigned long timeout; + if (!mbx) + return -EIO; + opcode = LSW(cmd->req.arg[0]); cmd_type = cmd->type; err = mbx->ops->enqueue_cmd(adapter, cmd, &timeout); @@ -3049,11 +3056,14 @@ int qlcnic_83xx_get_settings(struct qlcnic_adapter *adapter, int status = 0; struct qlcnic_hardware_context *ahw = adapter->ahw; - /* Get port configuration info */ - status = qlcnic_83xx_get_port_info(adapter); - /* Get Link Status related info */ - config = qlcnic_83xx_test_link(adapter); - ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config); + if (!test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) { + /* Get port configuration info */ + status = qlcnic_83xx_get_port_info(adapter); + /* Get Link Status related info */ + config = qlcnic_83xx_test_link(adapter); + ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config); + } + /* hard code until there is a way to get it from flash */ ahw->board_type = QLCNIC_BRDTYPE_83XX_10G; @@ -3530,6 +3540,9 @@ void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx) void qlcnic_83xx_free_mailbox(struct qlcnic_mailbox *mbx) { + if (!mbx) + return; + destroy_workqueue(mbx->work_q); kfree(mbx); } @@ -3650,6 +3663,9 @@ void qlcnic_83xx_detach_mailbox_work(struct qlcnic_adapter *adapter) { struct qlcnic_mailbox *mbx = adapter->ahw->mailbox; + if (!mbx) + return; + clear_bit(QLC_83XX_MBX_READY, &mbx->status); complete(&mbx->completion); cancel_work_sync(&mbx->work); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c index e2cd484..4a8a3f1 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c @@ -2190,20 +2190,24 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac) 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; - if (!qlcnic_83xx_read_flash_descriptor_table(adapter)) - qlcnic_83xx_read_flash_mfg_id(adapter); - err = qlcnic_83xx_get_fw_info(adapter); if (err) goto detach_mbx; err = qlcnic_83xx_idc_init(adapter); if (err) - goto clear_fw_info; + goto detach_mbx; err = qlcnic_setup_intr(adapter, 0, 0); if (err) { @@ -2247,12 +2251,10 @@ disable_mbx_intr: disable_intr: qlcnic_teardown_intr(adapter); -clear_fw_info: - kfree(ahw->fw_info); - detach_mbx: qlcnic_83xx_detach_mailbox_work(adapter); qlcnic_83xx_free_mailbox(ahw->mailbox); + ahw->mailbox = NULL; exit: return err; } diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c index b2a8805..0aaa52b 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c @@ -1685,7 +1685,6 @@ qlcnic_set_dump(struct net_device *netdev, struct ethtool_dump *val) struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump; bool valid_mask = false; int i, ret = 0; - u32 state; switch (val->flag) { case QLCNIC_FORCE_FW_DUMP_KEY: @@ -1738,9 +1737,8 @@ qlcnic_set_dump(struct net_device *netdev, struct ethtool_dump *val) case QLCNIC_SET_QUIESCENT: case QLCNIC_RESET_QUIESCENT: - state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) - netdev_info(netdev, "Device in FAILED state\n"); + if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) + netdev_info(netdev, "Device is in non-operational state\n"); break; default: diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index b97e4a0..47a33fe 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -2307,10 +2307,23 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) qlcnic_83xx_check_vf(adapter, ent); adapter->portnum = adapter->ahw->pci_func; err = qlcnic_83xx_init(adapter, pci_using_dac); + if (err) { - dev_err(&pdev->dev, "%s: failed\n", __func__); - goto err_out_free_hw; + switch (err) { + case -ENOTRECOVERABLE: + dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n"); + dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n"); + goto err_out_free_hw; + case -ENOMEM: + dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n"); + goto err_out_free_hw; + default: + dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n"); + dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n"); + goto err_out_maintenance_mode; + } } + if (qlcnic_sriov_vf_check(adapter)) return 0; } else { @@ -2412,8 +2425,16 @@ err_out_disable_pdev: return err; err_out_maintenance_mode: + set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state); netdev->netdev_ops = &qlcnic_netdev_failed_ops; SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops); + ahw->port_type = QLCNIC_XGBE; + + if (qlcnic_83xx_check(adapter)) + adapter->tgt_status_reg = NULL; + else + ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS; + err = register_netdev(netdev); if (err) { @@ -2535,12 +2556,11 @@ static int qlcnic_resume(struct pci_dev *pdev) static int qlcnic_open(struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); - u32 state; int err; - state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) { - netdev_err(netdev, "%s: Device is in FAILED state\n", __func__); + if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) { + netdev_err(netdev, "%s: Device is in non-operational state\n", + __func__); return -EIO; } @@ -3253,8 +3273,9 @@ void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key) return; state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) { - netdev_err(adapter->netdev, "%s: Device is in FAILED state\n", + + if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) { + netdev_err(adapter->netdev, "%s: Device is in non-operational state\n", __func__); qlcnic_api_unlock(adapter); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c index 019f437..e8b1ce6 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c @@ -1272,7 +1272,6 @@ void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; - u32 state; if (device_create_bin_file(dev, &bin_attr_port_stats)) dev_info(dev, "failed to create port stats sysfs entry"); @@ -1286,8 +1285,7 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) if (device_create_bin_file(dev, &bin_attr_mem)) dev_info(dev, "failed to create mem sysfs entry\n"); - state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) + if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) return; if (device_create_bin_file(dev, &bin_attr_pci_config)) @@ -1313,7 +1311,6 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; - u32 state; device_remove_bin_file(dev, &bin_attr_port_stats); @@ -1323,8 +1320,7 @@ void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) device_remove_bin_file(dev, &bin_attr_crb); device_remove_bin_file(dev, &bin_attr_mem); - state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) + if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) return; device_remove_bin_file(dev, &bin_attr_pci_config);