diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 244 |
1 files changed, 205 insertions, 39 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 408c546fe..6694233e2 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -64,6 +64,7 @@ #include <net/bonding.h> #include <net/addrconf.h> #include <asm/uaccess.h> +#include <linux/crash_dump.h> #include "cxgb4.h" #include "t4_regs.h" @@ -166,7 +167,8 @@ MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter," static int dflt_msg_enable = DFLT_MSG_ENABLE; module_param(dflt_msg_enable, int, 0644); -MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap"); +MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap, " + "deprecated parameter"); /* * The driver uses the best interrupt scheme available on a platform in the @@ -203,7 +205,7 @@ static int rx_dma_offset = 2; static unsigned int num_vf[NUM_OF_PF_WITH_SRIOV]; module_param_array(num_vf, uint, NULL, 0644); -MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); +MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3, deprecated parameter - please use the pci sysfs interface."); #endif /* TX Queue select used to determine what algorithm to use for selecting TX @@ -301,6 +303,22 @@ static void dcb_tx_queue_prio_enable(struct net_device *dev, int enable) } #endif /* CONFIG_CHELSIO_T4_DCB */ +int cxgb4_dcb_enabled(const struct net_device *dev) +{ +#ifdef CONFIG_CHELSIO_T4_DCB + struct port_info *pi = netdev_priv(dev); + + if (!pi->dcb.enabled) + return 0; + + return ((pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED) || + (pi->dcb.state == CXGB4_DCB_STATE_HOST)); +#else + return 0; +#endif +} +EXPORT_SYMBOL(cxgb4_dcb_enabled); + void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) { struct net_device *dev = adapter->port[port_id]; @@ -311,8 +329,10 @@ void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) netif_carrier_on(dev); else { #ifdef CONFIG_CHELSIO_T4_DCB - cxgb4_dcb_state_init(dev); - dcb_tx_queue_prio_enable(dev, false); + if (cxgb4_dcb_enabled(dev)) { + cxgb4_dcb_state_init(dev); + dcb_tx_queue_prio_enable(dev, false); + } #endif /* CONFIG_CHELSIO_T4_DCB */ netif_carrier_off(dev); } @@ -334,6 +354,17 @@ void t4_os_portmod_changed(const struct adapter *adap, int port_id) netdev_info(dev, "port module unplugged\n"); else if (pi->mod_type < ARRAY_SIZE(mod_str)) netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]); + else if (pi->mod_type == FW_PORT_MOD_TYPE_NOTSUPPORTED) + netdev_info(dev, "%s: unsupported port module inserted\n", + dev->name); + else if (pi->mod_type == FW_PORT_MOD_TYPE_UNKNOWN) + netdev_info(dev, "%s: unknown port module inserted\n", + dev->name); + else if (pi->mod_type == FW_PORT_MOD_TYPE_ERROR) + netdev_info(dev, "%s: transceiver module error\n", dev->name); + else + netdev_info(dev, "%s: unknown module type %d inserted\n", + dev->name, pi->mod_type); } int dbfifo_int_thresh = 10; /* 10 == 640 entry threshold */ @@ -428,11 +459,8 @@ static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok) struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; - if (!(dev->flags & IFF_PROMISC)) { - __dev_uc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync); - if (!(dev->flags & IFF_ALLMULTI)) - __dev_mc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync); - } + __dev_uc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync); + __dev_mc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync); return t4_set_rxmode(adapter, adapter->mbox, pi->viid, mtu, (dev->flags & IFF_PROMISC) ? 1 : 0, @@ -480,28 +508,12 @@ static int link_start(struct net_device *dev) return ret; } -int cxgb4_dcb_enabled(const struct net_device *dev) -{ -#ifdef CONFIG_CHELSIO_T4_DCB - struct port_info *pi = netdev_priv(dev); - - if (!pi->dcb.enabled) - return 0; - - return ((pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED) || - (pi->dcb.state == CXGB4_DCB_STATE_HOST)); -#else - return 0; -#endif -} -EXPORT_SYMBOL(cxgb4_dcb_enabled); - #ifdef CONFIG_CHELSIO_T4_DCB /* Handle a Data Center Bridging update message from the firmware. */ static void dcb_rpl(struct adapter *adap, const struct fw_port_cmd *pcmd) { int port = FW_PORT_CMD_PORTID_G(ntohl(pcmd->op_to_portid)); - struct net_device *dev = adap->port[port]; + struct net_device *dev = adap->port[adap->chan_map[port]]; int old_dcb_enabled = cxgb4_dcb_enabled(dev); int new_dcb_enabled; @@ -631,7 +643,8 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, action == FW_PORT_ACTION_GET_PORT_INFO) { int port = FW_PORT_CMD_PORTID_G( be32_to_cpu(pcmd->op_to_portid)); - struct net_device *dev = q->adap->port[port]; + struct net_device *dev = + q->adap->port[q->adap->chan_map[port]]; int state_input = ((pcmd->u.info.dcbxdis_pkd & FW_PORT_CMD_DCBXDIS_F) ? CXGB4_DCB_INPUT_FW_DISABLED @@ -3718,7 +3731,8 @@ static int adap_init0(struct adapter *adap) return ret; /* Contact FW, advertising Master capability */ - ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state); + ret = t4_fw_hello(adap, adap->mbox, adap->mbox, + is_kdump_kernel() ? MASTER_MUST : MASTER_MAY, &state); if (ret < 0) { dev_err(adap->pdev_dev, "could not connect to FW, error %d\n", ret); @@ -3735,7 +3749,10 @@ static int adap_init0(struct adapter *adap) * is excessively mismatched relative to the driver.) */ t4_get_fw_version(adap, &adap->params.fw_vers); + t4_get_bs_version(adap, &adap->params.bs_vers); t4_get_tp_version(adap, &adap->params.tp_vers); + t4_get_exprom_version(adap, &adap->params.er_vers); + ret = t4_check_fw_version(adap); /* If firmware is too old (not supported by driver) force an update. */ if (ret) @@ -4286,10 +4303,17 @@ static const struct pci_error_handlers cxgb4_eeh = { .resume = eeh_resume, }; +/* Return true if the Link Configuration supports "High Speeds" (those greater + * than 1Gb/s). + */ static inline bool is_x_10g_port(const struct link_config *lc) { - return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || - (lc->supported & FW_PORT_CAP_SPEED_40G) != 0; + unsigned int speeds, high_speeds; + + speeds = FW_PORT_CAP_SPEED_V(FW_PORT_CAP_SPEED_G(lc->supported)); + high_speeds = speeds & ~(FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G); + + return high_speeds != 0; } static inline void init_rspq(struct adapter *adap, struct sge_rspq *q, @@ -4316,6 +4340,11 @@ static void cfg_queues(struct adapter *adap) #endif int ciq_size; + /* Reduce memory usage in kdump environment, disable all offload. + */ + if (is_kdump_kernel()) + adap->params.offload = 0; + for_each_port(adap, i) n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg); #ifdef CONFIG_CHELSIO_T4_DCB @@ -4649,6 +4678,68 @@ static void cxgb4_check_pcie_caps(struct adapter *adap) "suggested for optimal performance.\n"); } +/* Dump basic information about the adapter */ +static void print_adapter_info(struct adapter *adapter) +{ + /* Device information */ + dev_info(adapter->pdev_dev, "Chelsio %s rev %d\n", + adapter->params.vpd.id, + CHELSIO_CHIP_RELEASE(adapter->params.chip)); + dev_info(adapter->pdev_dev, "S/N: %s, P/N: %s\n", + adapter->params.vpd.sn, adapter->params.vpd.pn); + + /* Firmware Version */ + if (!adapter->params.fw_vers) + dev_warn(adapter->pdev_dev, "No firmware loaded\n"); + else + dev_info(adapter->pdev_dev, "Firmware version: %u.%u.%u.%u\n", + FW_HDR_FW_VER_MAJOR_G(adapter->params.fw_vers), + FW_HDR_FW_VER_MINOR_G(adapter->params.fw_vers), + FW_HDR_FW_VER_MICRO_G(adapter->params.fw_vers), + FW_HDR_FW_VER_BUILD_G(adapter->params.fw_vers)); + + /* Bootstrap Firmware Version. (Some adapters don't have Bootstrap + * Firmware, so dev_info() is more appropriate here.) + */ + if (!adapter->params.bs_vers) + dev_info(adapter->pdev_dev, "No bootstrap loaded\n"); + else + dev_info(adapter->pdev_dev, "Bootstrap version: %u.%u.%u.%u\n", + FW_HDR_FW_VER_MAJOR_G(adapter->params.bs_vers), + FW_HDR_FW_VER_MINOR_G(adapter->params.bs_vers), + FW_HDR_FW_VER_MICRO_G(adapter->params.bs_vers), + FW_HDR_FW_VER_BUILD_G(adapter->params.bs_vers)); + + /* TP Microcode Version */ + if (!adapter->params.tp_vers) + dev_warn(adapter->pdev_dev, "No TP Microcode loaded\n"); + else + dev_info(adapter->pdev_dev, + "TP Microcode version: %u.%u.%u.%u\n", + FW_HDR_FW_VER_MAJOR_G(adapter->params.tp_vers), + FW_HDR_FW_VER_MINOR_G(adapter->params.tp_vers), + FW_HDR_FW_VER_MICRO_G(adapter->params.tp_vers), + FW_HDR_FW_VER_BUILD_G(adapter->params.tp_vers)); + + /* Expansion ROM version */ + if (!adapter->params.er_vers) + dev_info(adapter->pdev_dev, "No Expansion ROM loaded\n"); + else + dev_info(adapter->pdev_dev, + "Expansion ROM version: %u.%u.%u.%u\n", + FW_HDR_FW_VER_MAJOR_G(adapter->params.er_vers), + FW_HDR_FW_VER_MINOR_G(adapter->params.er_vers), + FW_HDR_FW_VER_MICRO_G(adapter->params.er_vers), + FW_HDR_FW_VER_BUILD_G(adapter->params.er_vers)); + + /* Software/Hardware configuration */ + dev_info(adapter->pdev_dev, "Configuration: %sNIC %s, %s capable\n", + is_offload(adapter) ? "R" : "", + ((adapter->flags & USING_MSIX) ? "MSI-X" : + (adapter->flags & USING_MSI) ? "MSI" : ""), + is_offload(adapter) ? "Offload" : "non-Offload"); +} + static void print_port_info(const struct net_device *dev) { char buf[80]; @@ -4670,20 +4761,18 @@ static void print_port_info(const struct net_device *dev) bufp += sprintf(bufp, "1000/"); if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) bufp += sprintf(bufp, "10G/"); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_25G) + bufp += sprintf(bufp, "25G/"); if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G) bufp += sprintf(bufp, "40G/"); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100G) + bufp += sprintf(bufp, "100G/"); if (bufp != buf) --bufp; sprintf(bufp, "BASE-%s", t4_get_port_type_description(pi->port_type)); - netdev_info(dev, "Chelsio %s rev %d %s %sNIC %s\n", - adap->params.vpd.id, - CHELSIO_CHIP_RELEASE(adap->params.chip), buf, - is_offload(adap) ? "R" : "", - (adap->flags & USING_MSIX) ? " MSI-X" : - (adap->flags & USING_MSI) ? " MSI" : ""); - netdev_info(dev, "S/N: %s, P/N: %s\n", - adap->params.vpd.sn, adap->params.vpd.pn); + netdev_info(dev, "%s: Chelsio %s (%s) %s\n", + dev->name, adap->params.vpd.id, adap->name, buf); } static void enable_pcie_relaxed_ordering(struct pci_dev *dev) @@ -4753,6 +4842,60 @@ static int get_chip_type(struct pci_dev *pdev, u32 pl_rev) return -EINVAL; } +#ifdef CONFIG_PCI_IOV +static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs) +{ + int err = 0; + int current_vfs = pci_num_vf(pdev); + u32 pcie_fw; + void __iomem *regs; + + regs = pci_ioremap_bar(pdev, 0); + if (!regs) { + dev_err(&pdev->dev, "cannot map device registers\n"); + return -ENOMEM; + } + + pcie_fw = readl(regs + PCIE_FW_A); + iounmap(regs); + /* Check if cxgb4 is the MASTER and fw is initialized */ + if (!(pcie_fw & PCIE_FW_INIT_F) || + !(pcie_fw & PCIE_FW_MASTER_VLD_F) || + PCIE_FW_MASTER_G(pcie_fw) != 4) { + dev_warn(&pdev->dev, + "cxgb4 driver needs to be MASTER to support SRIOV\n"); + return -EOPNOTSUPP; + } + + /* If any of the VF's is already assigned to Guest OS, then + * SRIOV for the same cannot be modified + */ + if (current_vfs && pci_vfs_assigned(pdev)) { + dev_err(&pdev->dev, + "Cannot modify SR-IOV while VFs are assigned\n"); + num_vfs = current_vfs; + return num_vfs; + } + + /* Disable SRIOV when zero is passed. + * One needs to disable SRIOV before modifying it, else + * stack throws the below warning: + * " 'n' VFs already enabled. Disable before enabling 'm' VFs." + */ + if (!num_vfs) { + pci_disable_sriov(pdev); + return num_vfs; + } + + if (num_vfs != current_vfs) { + err = pci_enable_sriov(pdev, num_vfs); + if (err) + return err; + } + return num_vfs; +} +#endif + static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { int func, i, err, s_qpp, qpp, num_seg; @@ -4835,12 +4978,23 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_free_adapter; } + adapter->mbox_log = kzalloc(sizeof(*adapter->mbox_log) + + (sizeof(struct mbox_cmd) * + T4_OS_LOG_MBOX_CMDS), + GFP_KERNEL); + if (!adapter->mbox_log) { + err = -ENOMEM; + goto out_free_adapter; + } + adapter->mbox_log->size = T4_OS_LOG_MBOX_CMDS; + /* PCI device has been enabled */ adapter->flags |= DEV_ENABLED; adapter->regs = regs; adapter->pdev = pdev; adapter->pdev_dev = &pdev->dev; + adapter->name = pci_name(pdev); adapter->mbox = func; adapter->pf = func; adapter->msg_enable = dflt_msg_enable; @@ -5071,13 +5225,20 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (is_offload(adapter)) attach_ulds(adapter); + print_adapter_info(adapter); + sriov: #ifdef CONFIG_PCI_IOV - if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) + if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) { + dev_warn(&pdev->dev, + "Enabling SR-IOV VFs using the num_vf module " + "parameter is deprecated - please use the pci sysfs " + "interface instead.\n"); if (pci_enable_sriov(pdev, num_vf[func]) == 0) dev_info(&pdev->dev, "instantiated %u virtual functions\n", num_vf[func]); + } #endif return 0; @@ -5090,6 +5251,7 @@ sriov: if (adapter->workq) destroy_workqueue(adapter->workq); + kfree(adapter->mbox_log); kfree(adapter); out_unmap_bar0: iounmap(regs); @@ -5156,6 +5318,7 @@ static void remove_one(struct pci_dev *pdev) adapter->flags &= ~DEV_ENABLED; } pci_release_regions(pdev); + kfree(adapter->mbox_log); synchronize_rcu(); kfree(adapter); } else @@ -5168,6 +5331,9 @@ static struct pci_driver cxgb4_driver = { .probe = init_one, .remove = remove_one, .shutdown = remove_one, +#ifdef CONFIG_PCI_IOV + .sriov_configure = cxgb4_iov_configure, +#endif .err_handler = &cxgb4_eeh, }; |