diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 228 |
1 files changed, 69 insertions, 159 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 082a596..1147e1e 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -62,6 +62,7 @@ #include <net/netevent.h> #include <net/addrconf.h> #include <net/bonding.h> +#include <net/addrconf.h> #include <asm/uaccess.h> #include "cxgb4.h" @@ -71,6 +72,7 @@ #include "t4fw_api.h" #include "cxgb4_dcb.h" #include "cxgb4_debugfs.h" +#include "clip_tbl.h" #include "l2t.h" #ifdef DRV_VERSION @@ -3236,40 +3238,6 @@ static int tid_init(struct tid_info *t) return 0; } -int cxgb4_clip_get(const struct net_device *dev, - const struct in6_addr *lip) -{ - struct adapter *adap; - struct fw_clip_cmd c; - - adap = netdev2adap(dev); - memset(&c, 0, sizeof(c)); - c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) | - FW_CMD_REQUEST_F | FW_CMD_WRITE_F); - c.alloc_to_len16 = htonl(FW_CLIP_CMD_ALLOC_F | FW_LEN16(c)); - c.ip_hi = *(__be64 *)(lip->s6_addr); - c.ip_lo = *(__be64 *)(lip->s6_addr + 8); - return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); -} -EXPORT_SYMBOL(cxgb4_clip_get); - -int cxgb4_clip_release(const struct net_device *dev, - const struct in6_addr *lip) -{ - struct adapter *adap; - struct fw_clip_cmd c; - - adap = netdev2adap(dev); - memset(&c, 0, sizeof(c)); - c.op_to_write = htonl(FW_CMD_OP_V(FW_CLIP_CMD) | - FW_CMD_REQUEST_F | FW_CMD_READ_F); - c.alloc_to_len16 = htonl(FW_CLIP_CMD_FREE_F | FW_LEN16(c)); - c.ip_hi = *(__be64 *)(lip->s6_addr); - c.ip_lo = *(__be64 *)(lip->s6_addr + 8); - return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); -} -EXPORT_SYMBOL(cxgb4_clip_release); - /** * cxgb4_create_server - create an IP server * @dev: the device @@ -4122,148 +4090,61 @@ int cxgb4_unregister_uld(enum cxgb4_uld type) } EXPORT_SYMBOL(cxgb4_unregister_uld); -/* Check if netdev on which event is occured belongs to us or not. Return - * success (true) if it belongs otherwise failure (false). - * Called with rcu_read_lock() held. - */ #if IS_ENABLED(CONFIG_IPV6) -static bool cxgb4_netdev(const struct net_device *netdev) +static int cxgb4_inet6addr_handler(struct notifier_block *this, + unsigned long event, void *data) { + struct inet6_ifaddr *ifa = data; + struct net_device *event_dev = ifa->idev->dev; + const struct device *parent = NULL; +#if IS_ENABLED(CONFIG_BONDING) struct adapter *adap; - int i; - - list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node) - for (i = 0; i < MAX_NPORTS; i++) - if (adap->port[i] == netdev) - return true; - return false; -} +#endif + if (event_dev->priv_flags & IFF_802_1Q_VLAN) + event_dev = vlan_dev_real_dev(event_dev); +#if IS_ENABLED(CONFIG_BONDING) + if (event_dev->flags & IFF_MASTER) { + list_for_each_entry(adap, &adapter_list, list_node) { + switch (event) { + case NETDEV_UP: + cxgb4_clip_get(adap->port[0], + (const u32 *)ifa, 1); + break; + case NETDEV_DOWN: + cxgb4_clip_release(adap->port[0], + (const u32 *)ifa, 1); + break; + default: + break; + } + } + return NOTIFY_OK; + } +#endif -static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa, - unsigned long event) -{ - int ret = NOTIFY_DONE; + if (event_dev) + parent = event_dev->dev.parent; - rcu_read_lock(); - if (cxgb4_netdev(event_dev)) { + if (parent && parent->driver == &cxgb4_driver.driver) { switch (event) { case NETDEV_UP: - ret = cxgb4_clip_get(event_dev, &ifa->addr); - if (ret < 0) { - rcu_read_unlock(); - return ret; - } - ret = NOTIFY_OK; + cxgb4_clip_get(event_dev, (const u32 *)ifa, 1); break; case NETDEV_DOWN: - cxgb4_clip_release(event_dev, &ifa->addr); - ret = NOTIFY_OK; + cxgb4_clip_release(event_dev, (const u32 *)ifa, 1); break; default: break; } } - rcu_read_unlock(); - return ret; -} - -static int cxgb4_inet6addr_handler(struct notifier_block *this, - unsigned long event, void *data) -{ - struct inet6_ifaddr *ifa = data; - struct net_device *event_dev; - int ret = NOTIFY_DONE; - struct bonding *bond = netdev_priv(ifa->idev->dev); - struct list_head *iter; - struct slave *slave; - struct pci_dev *first_pdev = NULL; - - if (ifa->idev->dev->priv_flags & IFF_802_1Q_VLAN) { - event_dev = vlan_dev_real_dev(ifa->idev->dev); - ret = clip_add(event_dev, ifa, event); - } else if (ifa->idev->dev->flags & IFF_MASTER) { - /* It is possible that two different adapters are bonded in one - * bond. We need to find such different adapters and add clip - * in all of them only once. - */ - bond_for_each_slave(bond, slave, iter) { - if (!first_pdev) { - ret = clip_add(slave->dev, ifa, event); - /* If clip_add is success then only initialize - * first_pdev since it means it is our device - */ - if (ret == NOTIFY_OK) - first_pdev = to_pci_dev( - slave->dev->dev.parent); - } else if (first_pdev != - to_pci_dev(slave->dev->dev.parent)) - ret = clip_add(slave->dev, ifa, event); - } - } else - ret = clip_add(ifa->idev->dev, ifa, event); - - return ret; + return NOTIFY_OK; } +static bool inet6addr_registered; static struct notifier_block cxgb4_inet6addr_notifier = { .notifier_call = cxgb4_inet6addr_handler }; -/* Retrieves IPv6 addresses from a root device (bond, vlan) associated with - * a physical device. - * The physical device reference is needed to send the actul CLIP command. - */ -static int update_dev_clip(struct net_device *root_dev, struct net_device *dev) -{ - struct inet6_dev *idev = NULL; - struct inet6_ifaddr *ifa; - int ret = 0; - - idev = __in6_dev_get(root_dev); - if (!idev) - return ret; - - read_lock_bh(&idev->lock); - list_for_each_entry(ifa, &idev->addr_list, if_list) { - ret = cxgb4_clip_get(dev, &ifa->addr); - if (ret < 0) - break; - } - read_unlock_bh(&idev->lock); - - return ret; -} - -static int update_root_dev_clip(struct net_device *dev) -{ - struct net_device *root_dev = NULL; - int i, ret = 0; - - /* First populate the real net device's IPv6 addresses */ - ret = update_dev_clip(dev, dev); - if (ret) - return ret; - - /* Parse all bond and vlan devices layered on top of the physical dev */ - root_dev = netdev_master_upper_dev_get_rcu(dev); - if (root_dev) { - ret = update_dev_clip(root_dev, dev); - if (ret) - return ret; - } - - for (i = 0; i < VLAN_N_VID; i++) { - root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i); - if (!root_dev) - continue; - - ret = update_dev_clip(root_dev, dev); - if (ret) - break; - } - return ret; -} - static void update_clip(const struct adapter *adap) { int i; @@ -4277,7 +4158,7 @@ static void update_clip(const struct adapter *adap) ret = 0; if (dev) - ret = update_root_dev_clip(dev); + ret = cxgb4_update_root_dev_clip(dev); if (ret < 0) break; @@ -5391,6 +5272,14 @@ static int adap_init0(struct adapter *adap) adap->tids.nftids = val[4] - val[3] + 1; adap->sge.ingr_start = val[5]; + params[0] = FW_PARAM_PFVF(CLIP_START); + params[1] = FW_PARAM_PFVF(CLIP_END); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val); + if (ret < 0) + goto bye; + adap->clipt_start = val[0]; + adap->clipt_end = val[1]; + /* query params related to active filter region */ params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START); params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END); @@ -6211,6 +6100,18 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->params.offload = 0; } +#if IS_ENABLED(CONFIG_IPV6) + adapter->clipt = t4_init_clip_tbl(adapter->clipt_start, + adapter->clipt_end); + if (!adapter->clipt) { + /* We tolerate a lack of clip_table, giving up + * some functionality + */ + dev_warn(&pdev->dev, + "could not allocate Clip table, continuing\n"); + adapter->params.offload = 0; + } +#endif if (is_offload(adapter) && tid_init(&adapter->tids) < 0) { dev_warn(&pdev->dev, "could not allocate TID table, " "continuing\n"); @@ -6336,6 +6237,9 @@ static void remove_one(struct pci_dev *pdev) cxgb_down(adapter); free_some_resources(adapter); +#if IS_ENABLED(CONFIG_IPV6) + t4_cleanup_clip_tbl(adapter); +#endif iounmap(adapter->regs); if (!is_t4(adapter->params.chip)) iounmap(adapter->bar2); @@ -6374,7 +6278,10 @@ static int __init cxgb4_init_module(void) debugfs_remove(cxgb4_debugfs_root); #if IS_ENABLED(CONFIG_IPV6) - register_inet6addr_notifier(&cxgb4_inet6addr_notifier); + if (!inet6addr_registered) { + register_inet6addr_notifier(&cxgb4_inet6addr_notifier); + inet6addr_registered = true; + } #endif return ret; @@ -6383,7 +6290,10 @@ static int __init cxgb4_init_module(void) static void __exit cxgb4_cleanup_module(void) { #if IS_ENABLED(CONFIG_IPV6) - unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier); + if (inet6addr_registered && list_empty(&adapter_list)) { + unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier); + inet6addr_registered = false; + } #endif pci_unregister_driver(&cxgb4_driver); debugfs_remove(cxgb4_debugfs_root); /* NULL ok */ |