diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 1161 |
1 files changed, 602 insertions, 559 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 31c97e3937a4..5c6a5ceb8a91 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -41,7 +41,7 @@ static const char i40e_driver_string[] = #define DRV_VERSION_MAJOR 1 #define DRV_VERSION_MINOR 6 -#define DRV_VERSION_BUILD 16 +#define DRV_VERSION_BUILD 21 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \ __stringify(DRV_VERSION_MINOR) "." \ __stringify(DRV_VERSION_BUILD) DRV_KERN @@ -93,8 +93,8 @@ MODULE_DEVICE_TABLE(pci, i40e_pci_tbl); #define I40E_MAX_VF_COUNT 128 static int debug = -1; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); +module_param(debug, uint, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all), Debug mask (0x8XXXXXXX)"); MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>"); MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver"); @@ -1145,25 +1145,22 @@ void i40e_update_stats(struct i40e_vsi *vsi) * @vsi: the VSI to be searched * @macaddr: the MAC address * @vlan: the vlan - * @is_vf: make sure its a VF filter, else doesn't matter - * @is_netdev: make sure its a netdev filter, else doesn't matter * * Returns ptr to the filter object or NULL **/ static struct i40e_mac_filter *i40e_find_filter(struct i40e_vsi *vsi, - u8 *macaddr, s16 vlan, - bool is_vf, bool is_netdev) + const u8 *macaddr, s16 vlan) { struct i40e_mac_filter *f; + u64 key; if (!vsi || !macaddr) return NULL; - list_for_each_entry(f, &vsi->mac_filter_list, list) { + key = i40e_addr_to_hkey(macaddr); + hash_for_each_possible(vsi->mac_filter_hash, f, hlist, key) { if ((ether_addr_equal(macaddr, f->macaddr)) && - (vlan == f->vlan) && - (!is_vf || f->is_vf) && - (!is_netdev || f->is_netdev)) + (vlan == f->vlan)) return f; } return NULL; @@ -1173,24 +1170,21 @@ static struct i40e_mac_filter *i40e_find_filter(struct i40e_vsi *vsi, * i40e_find_mac - Find a mac addr in the macvlan filters list * @vsi: the VSI to be searched * @macaddr: the MAC address we are searching for - * @is_vf: make sure its a VF filter, else doesn't matter - * @is_netdev: make sure its a netdev filter, else doesn't matter * * Returns the first filter with the provided MAC address or NULL if * MAC address was not found **/ -struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr, - bool is_vf, bool is_netdev) +struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, const u8 *macaddr) { struct i40e_mac_filter *f; + u64 key; if (!vsi || !macaddr) return NULL; - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if ((ether_addr_equal(macaddr, f->macaddr)) && - (!is_vf || f->is_vf) && - (!is_netdev || f->is_netdev)) + key = i40e_addr_to_hkey(macaddr); + hash_for_each_possible(vsi->mac_filter_hash, f, hlist, key) { + if ((ether_addr_equal(macaddr, f->macaddr))) return f; } return NULL; @@ -1204,119 +1198,31 @@ struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr, **/ bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi) { - struct i40e_mac_filter *f; + /* If we have a PVID, always operate in VLAN mode */ + if (vsi->info.pvid) + return true; - /* Only -1 for all the filters denotes not in vlan mode - * so we have to go through all the list in order to make sure + /* We need to operate in VLAN mode whenever we have any filters with + * a VLAN other than I40E_VLAN_ALL. We could check the table each + * time, incurring search cost repeatedly. However, we can notice two + * things: + * + * 1) the only place where we can gain a VLAN filter is in + * i40e_add_filter. + * + * 2) the only place where filters are actually removed is in + * i40e_vsi_sync_filters_subtask. + * + * Thus, we can simply use a boolean value, has_vlan_filters which we + * will set to true when we add a VLAN filter in i40e_add_filter. Then + * we have to perform the full search after deleting filters in + * i40e_vsi_sync_filters_subtask, but we already have to search + * filters here and can perform the check at the same time. This + * results in avoiding embedding a loop for VLAN mode inside another + * loop over all the filters, and should maintain correctness as noted + * above. */ - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if (f->vlan >= 0 || vsi->info.pvid) - return true; - } - - return false; -} - -/** - * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans - * @vsi: the VSI to be searched - * @macaddr: the mac address to be filtered - * @is_vf: true if it is a VF - * @is_netdev: true if it is a netdev - * - * Goes through all the macvlan filters and adds a - * macvlan filter for each unique vlan that already exists - * - * Returns first filter found on success, else NULL - **/ -struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr, - bool is_vf, bool is_netdev) -{ - struct i40e_mac_filter *f; - - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if (vsi->info.pvid) - f->vlan = le16_to_cpu(vsi->info.pvid); - if (!i40e_find_filter(vsi, macaddr, f->vlan, - is_vf, is_netdev)) { - if (!i40e_add_filter(vsi, macaddr, f->vlan, - is_vf, is_netdev)) - return NULL; - } - } - - return list_first_entry_or_null(&vsi->mac_filter_list, - struct i40e_mac_filter, list); -} - -/** - * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS - * @vsi: the VSI to be searched - * @macaddr: the mac address to be removed - * @is_vf: true if it is a VF - * @is_netdev: true if it is a netdev - * - * Removes a given MAC address from a VSI, regardless of VLAN - * - * Returns 0 for success, or error - **/ -int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, u8 *macaddr, - bool is_vf, bool is_netdev) -{ - struct i40e_mac_filter *f = NULL; - int changed = 0; - - WARN(!spin_is_locked(&vsi->mac_filter_list_lock), - "Missing mac_filter_list_lock\n"); - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if ((ether_addr_equal(macaddr, f->macaddr)) && - (is_vf == f->is_vf) && - (is_netdev == f->is_netdev)) { - f->counter--; - changed = 1; - if (f->counter == 0) - f->state = I40E_FILTER_REMOVE; - } - } - if (changed) { - vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; - return 0; - } - return -ENOENT; -} - -/** - * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM - * @vsi: the PF Main VSI - inappropriate for any other VSI - * @macaddr: the MAC address - * - * Remove whatever filter the firmware set up so the driver can manage - * its own filtering intelligently. - **/ -static void i40e_rm_default_mac_filter(struct i40e_vsi *vsi, u8 *macaddr) -{ - struct i40e_aqc_remove_macvlan_element_data element; - struct i40e_pf *pf = vsi->back; - - /* Only appropriate for the PF main VSI */ - if (vsi->type != I40E_VSI_MAIN) - return; - - memset(&element, 0, sizeof(element)); - ether_addr_copy(element.mac_addr, macaddr); - element.vlan_tag = 0; - /* Ignore error returns, some firmware does it this way... */ - element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH; - i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL); - - memset(&element, 0, sizeof(element)); - ether_addr_copy(element.mac_addr, macaddr); - element.vlan_tag = 0; - /* ...and some firmware does it this way. */ - element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH | - I40E_AQC_MACVLAN_DEL_IGNORE_VLAN; - i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL); + return vsi->has_vlan_filter; } /** @@ -1324,20 +1230,17 @@ static void i40e_rm_default_mac_filter(struct i40e_vsi *vsi, u8 *macaddr) * @vsi: the VSI to be searched * @macaddr: the MAC address * @vlan: the vlan - * @is_vf: make sure its a VF filter, else doesn't matter - * @is_netdev: make sure its a netdev filter, else doesn't matter * * Returns ptr to the filter object or NULL when no memory available. * - * NOTE: This function is expected to be called with mac_filter_list_lock + * NOTE: This function is expected to be called with mac_filter_hash_lock * being held. **/ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, - u8 *macaddr, s16 vlan, - bool is_vf, bool is_netdev) + const u8 *macaddr, s16 vlan) { struct i40e_mac_filter *f; - int changed = false; + u64 key; if (!vsi || !macaddr) return NULL; @@ -1349,11 +1252,17 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, if (is_broadcast_ether_addr(macaddr)) return NULL; - f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev); + f = i40e_find_filter(vsi, macaddr, vlan); if (!f) { f = kzalloc(sizeof(*f), GFP_ATOMIC); if (!f) - goto add_filter_out; + return NULL; + + /* Update the boolean indicating if we need to function in + * VLAN mode. + */ + if (vlan >= 0) + vsi->has_vlan_filter = true; ether_addr_copy(f->macaddr, macaddr); f->vlan = vlan; @@ -1365,100 +1274,148 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, f->state = I40E_FILTER_FAILED; else f->state = I40E_FILTER_NEW; - changed = true; - INIT_LIST_HEAD(&f->list); - list_add_tail(&f->list, &vsi->mac_filter_list); - } + INIT_HLIST_NODE(&f->hlist); - /* increment counter and add a new flag if needed */ - if (is_vf) { - if (!f->is_vf) { - f->is_vf = true; - f->counter++; - } - } else if (is_netdev) { - if (!f->is_netdev) { - f->is_netdev = true; - f->counter++; - } - } else { - f->counter++; - } + key = i40e_addr_to_hkey(macaddr); + hash_add(vsi->mac_filter_hash, &f->hlist, key); - if (changed) { vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; vsi->back->flags |= I40E_FLAG_FILTER_SYNC; } -add_filter_out: + /* If we're asked to add a filter that has been marked for removal, it + * is safe to simply restore it to active state. __i40e_del_filter + * will have simply deleted any filters which were previously marked + * NEW or FAILED, so if it is currently marked REMOVE it must have + * previously been ACTIVE. Since we haven't yet run the sync filters + * task, just restore this filter to the ACTIVE state so that the + * sync task leaves it in place + */ + if (f->state == I40E_FILTER_REMOVE) + f->state = I40E_FILTER_ACTIVE; + return f; } /** - * i40e_del_filter - Remove a mac/vlan filter from the VSI + * __i40e_del_filter - Remove a specific filter from the VSI + * @vsi: VSI to remove from + * @f: the filter to remove from the list + * + * This function should be called instead of i40e_del_filter only if you know + * the exact filter you will remove already, such as via i40e_find_filter or + * i40e_find_mac. + * + * NOTE: This function is expected to be called with mac_filter_hash_lock + * being held. + * ANOTHER NOTE: This function MUST be called from within the context of + * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe() + * instead of list_for_each_entry(). + **/ +static void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f) +{ + if (!f) + return; + + if ((f->state == I40E_FILTER_FAILED) || + (f->state == I40E_FILTER_NEW)) { + /* this one never got added by the FW. Just remove it, + * no need to sync anything. + */ + hash_del(&f->hlist); + kfree(f); + } else { + f->state = I40E_FILTER_REMOVE; + vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; + vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + } +} + +/** + * i40e_del_filter - Remove a MAC/VLAN filter from the VSI * @vsi: the VSI to be searched * @macaddr: the MAC address - * @vlan: the vlan - * @is_vf: make sure it's a VF filter, else doesn't matter - * @is_netdev: make sure it's a netdev filter, else doesn't matter + * @vlan: the VLAN * - * NOTE: This function is expected to be called with mac_filter_list_lock + * NOTE: This function is expected to be called with mac_filter_hash_lock * being held. * ANOTHER NOTE: This function MUST be called from within the context of * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe() * instead of list_for_each_entry(). **/ -void i40e_del_filter(struct i40e_vsi *vsi, - u8 *macaddr, s16 vlan, - bool is_vf, bool is_netdev) +void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan) { struct i40e_mac_filter *f; if (!vsi || !macaddr) return; - f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev); - if (!f || f->counter == 0) - return; + f = i40e_find_filter(vsi, macaddr, vlan); + __i40e_del_filter(vsi, f); +} - if (is_vf) { - if (f->is_vf) { - f->is_vf = false; - f->counter--; - } - } else if (is_netdev) { - if (f->is_netdev) { - f->is_netdev = false; - f->counter--; - } - } else { - /* make sure we don't remove a filter in use by VF or netdev */ - int min_f = 0; +/** + * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans + * @vsi: the VSI to be searched + * @macaddr: the mac address to be filtered + * + * Goes through all the macvlan filters and adds a macvlan filter for each + * unique vlan that already exists. If a PVID has been assigned, instead only + * add the macaddr to that VLAN. + * + * Returns last filter added on success, else NULL + **/ +struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, + const u8 *macaddr) +{ + struct i40e_mac_filter *f, *add = NULL; + struct hlist_node *h; + int bkt; - min_f += (f->is_vf ? 1 : 0); - min_f += (f->is_netdev ? 1 : 0); + if (vsi->info.pvid) + return i40e_add_filter(vsi, macaddr, + le16_to_cpu(vsi->info.pvid)); - if (f->counter > min_f) - f->counter--; + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (f->state == I40E_FILTER_REMOVE) + continue; + add = i40e_add_filter(vsi, macaddr, f->vlan); + if (!add) + return NULL; } - /* counter == 0 tells sync_filters_subtask to - * remove the filter from the firmware's list - */ - if (f->counter == 0) { - if ((f->state == I40E_FILTER_FAILED) || - (f->state == I40E_FILTER_NEW)) { - /* this one never got added by the FW. Just remove it, - * no need to sync anything. - */ - list_del(&f->list); - kfree(f); - } else { - f->state = I40E_FILTER_REMOVE; - vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + return add; +} + +/** + * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS + * @vsi: the VSI to be searched + * @macaddr: the mac address to be removed + * + * Removes a given MAC address from a VSI, regardless of VLAN + * + * Returns 0 for success, or error + **/ +int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, const u8 *macaddr) +{ + struct i40e_mac_filter *f; + struct hlist_node *h; + bool found = false; + int bkt; + + WARN(!spin_is_locked(&vsi->mac_filter_hash_lock), + "Missing mac_filter_hash_lock\n"); + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (ether_addr_equal(macaddr, f->macaddr)) { + __i40e_del_filter(vsi, f); + found = true; } } + + if (found) + return 0; + else + return -ENOENT; } /** @@ -1499,10 +1456,10 @@ static int i40e_set_mac(struct net_device *netdev, void *p) else netdev_info(netdev, "set new mac address %pM\n", addr->sa_data); - spin_lock_bh(&vsi->mac_filter_list_lock); - i40e_del_mac_all_vlan(vsi, netdev->dev_addr, false, true); - i40e_put_mac_in_vlan(vsi, addr->sa_data, false, true); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); + i40e_del_mac_all_vlan(vsi, netdev->dev_addr); + i40e_put_mac_in_vlan(vsi, addr->sa_data); + spin_unlock_bh(&vsi->mac_filter_hash_lock); ether_addr_copy(netdev->dev_addr, addr->sa_data); if (vsi->type == I40E_VSI_MAIN) { i40e_status ret; @@ -1666,6 +1623,52 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, } /** + * i40e_addr_sync - Callback for dev_(mc|uc)_sync to add address + * @netdev: the netdevice + * @addr: address to add + * + * Called by __dev_(mc|uc)_sync when an address needs to be added. We call + * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock. + */ +static int i40e_addr_sync(struct net_device *netdev, const u8 *addr) +{ + struct i40e_netdev_priv *np = netdev_priv(netdev); + struct i40e_vsi *vsi = np->vsi; + struct i40e_mac_filter *f; + + if (i40e_is_vsi_in_vlan(vsi)) + f = i40e_put_mac_in_vlan(vsi, addr); + else + f = i40e_add_filter(vsi, addr, I40E_VLAN_ANY); + + if (f) + return 0; + else + return -ENOMEM; +} + +/** + * i40e_addr_unsync - Callback for dev_(mc|uc)_sync to remove address + * @netdev: the netdevice + * @addr: address to add + * + * Called by __dev_(mc|uc)_sync when an address needs to be removed. We call + * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock. + */ +static int i40e_addr_unsync(struct net_device *netdev, const u8 *addr) +{ + struct i40e_netdev_priv *np = netdev_priv(netdev); + struct i40e_vsi *vsi = np->vsi; + + if (i40e_is_vsi_in_vlan(vsi)) + i40e_del_mac_all_vlan(vsi, addr); + else + i40e_del_filter(vsi, addr, I40E_VLAN_ANY); + + return 0; +} + +/** * i40e_set_rx_mode - NDO callback to set the netdev filters * @netdev: network interface device structure **/ @@ -1676,62 +1679,14 @@ static void i40e_set_rx_mode(struct net_device *netdev) #endif { struct i40e_netdev_priv *np = netdev_priv(netdev); - struct i40e_mac_filter *f, *ftmp; struct i40e_vsi *vsi = np->vsi; - struct netdev_hw_addr *uca; - struct netdev_hw_addr *mca; - struct netdev_hw_addr *ha; - - spin_lock_bh(&vsi->mac_filter_list_lock); - - /* add addr if not already in the filter list */ - netdev_for_each_uc_addr(uca, netdev) { - if (!i40e_find_mac(vsi, uca->addr, false, true)) { - if (i40e_is_vsi_in_vlan(vsi)) - i40e_put_mac_in_vlan(vsi, uca->addr, - false, true); - else - i40e_add_filter(vsi, uca->addr, I40E_VLAN_ANY, - false, true); - } - } - - netdev_for_each_mc_addr(mca, netdev) { - if (!i40e_find_mac(vsi, mca->addr, false, true)) { - if (i40e_is_vsi_in_vlan(vsi)) - i40e_put_mac_in_vlan(vsi, mca->addr, - false, true); - else - i40e_add_filter(vsi, mca->addr, I40E_VLAN_ANY, - false, true); - } - } - /* remove filter if not in netdev list */ - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { - - if (!f->is_netdev) - continue; + spin_lock_bh(&vsi->mac_filter_hash_lock); - netdev_for_each_mc_addr(mca, netdev) - if (ether_addr_equal(mca->addr, f->macaddr)) - goto bottom_of_search_loop; + __dev_uc_sync(netdev, i40e_addr_sync, i40e_addr_unsync); + __dev_mc_sync(netdev, i40e_addr_sync, i40e_addr_unsync); - netdev_for_each_uc_addr(uca, netdev) - if (ether_addr_equal(uca->addr, f->macaddr)) - goto bottom_of_search_loop; - - for_each_dev_addr(netdev, ha) - if (ether_addr_equal(ha->addr, f->macaddr)) - goto bottom_of_search_loop; - - /* f->macaddr wasn't found in uc, mc, or ha list so delete it */ - i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY, false, true); - -bottom_of_search_loop: - continue; - } - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); /* check for other flag changes */ if (vsi->current_netdev_flags != vsi->netdev->flags) { @@ -1746,21 +1701,26 @@ bottom_of_search_loop: } /** - * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries - * @vsi: pointer to vsi struct + * i40e_undo_filter_entries - Undo the changes made to MAC filter entries + * @vsi: Pointer to VSI struct * @from: Pointer to list which contains MAC filter entries - changes to * those entries needs to be undone. * - * MAC filter entries from list were slated to be removed from device. + * MAC filter entries from list were slated to be sent to firmware, either for + * addition or deletion. **/ -static void i40e_undo_del_filter_entries(struct i40e_vsi *vsi, - struct list_head *from) +static void i40e_undo_filter_entries(struct i40e_vsi *vsi, + struct hlist_head *from) { - struct i40e_mac_filter *f, *ftmp; + struct i40e_mac_filter *f; + struct hlist_node *h; + + hlist_for_each_entry_safe(f, h, from, hlist) { + u64 key = i40e_addr_to_hkey(f->macaddr); - list_for_each_entry_safe(f, ftmp, from, list) { /* Move the element back into MAC filter list*/ - list_move_tail(&f->list, &vsi->mac_filter_list); + hlist_del(&f->hlist); + hash_add(vsi->mac_filter_hash, &f->hlist, key); } } @@ -1789,7 +1749,9 @@ i40e_update_filter_state(int count, /* Everything's good, mark all filters active. */ for (i = 0; i < count ; i++) { add_head->state = I40E_FILTER_ACTIVE; - add_head = list_next_entry(add_head, list); + add_head = hlist_entry(add_head->hlist.next, + typeof(struct i40e_mac_filter), + hlist); } } else if (aq_err == I40E_AQ_RC_ENOSPC) { /* Device ran out of filter space. Check the return value @@ -1803,20 +1765,98 @@ i40e_update_filter_state(int count, add_head->state = I40E_FILTER_ACTIVE; retval++; } - add_head = list_next_entry(add_head, list); + add_head = hlist_entry(add_head->hlist.next, + typeof(struct i40e_mac_filter), + hlist); } } else { /* Some other horrible thing happened, fail all filters */ retval = 0; for (i = 0; i < count ; i++) { add_head->state = I40E_FILTER_FAILED; - add_head = list_next_entry(add_head, list); + add_head = hlist_entry(add_head->hlist.next, + typeof(struct i40e_mac_filter), + hlist); } } return retval; } /** + * i40e_aqc_del_filters - Request firmware to delete a set of filters + * @vsi: ptr to the VSI + * @vsi_name: name to display in messages + * @list: the list of filters to send to firmware + * @num_del: the number of filters to delete + * @retval: Set to -EIO on failure to delete + * + * Send a request to firmware via AdminQ to delete a set of filters. Uses + * *retval instead of a return value so that success does not force ret_val to + * be set to 0. This ensures that a sequence of calls to this function + * preserve the previous value of *retval on successful delete. + */ +static +void i40e_aqc_del_filters(struct i40e_vsi *vsi, const char *vsi_name, + struct i40e_aqc_remove_macvlan_element_data *list, + int num_del, int *retval) +{ + struct i40e_hw *hw = &vsi->back->hw; + i40e_status aq_ret; + int aq_err; + + aq_ret = i40e_aq_remove_macvlan(hw, vsi->seid, list, num_del, NULL); + aq_err = hw->aq.asq_last_status; + + /* Explicitly ignore and do not report when firmware returns ENOENT */ + if (aq_ret && !(aq_err == I40E_AQ_RC_ENOENT)) { + *retval = -EIO; + dev_info(&vsi->back->pdev->dev, + "ignoring delete macvlan error on %s, err %s, aq_err %s\n", + vsi_name, i40e_stat_str(hw, aq_ret), + i40e_aq_str(hw, aq_err)); + } +} + +/** + * i40e_aqc_add_filters - Request firmware to add a set of filters + * @vsi: ptr to the VSI + * @vsi_name: name to display in messages + * @list: the list of filters to send to firmware + * @add_head: Position in the add hlist + * @num_add: the number of filters to add + * @promisc_change: set to true on exit if promiscuous mode was forced on + * + * Send a request to firmware via AdminQ to add a chunk of filters. Will set + * promisc_changed to true if the firmware has run out of space for more + * filters. + */ +static +void i40e_aqc_add_filters(struct i40e_vsi *vsi, const char *vsi_name, + struct i40e_aqc_add_macvlan_element_data *list, + struct i40e_mac_filter *add_head, + int num_add, bool *promisc_changed) +{ + struct i40e_hw *hw = &vsi->back->hw; + i40e_status aq_ret; + int aq_err, fcnt; + + aq_ret = i40e_aq_add_macvlan(hw, vsi->seid, list, num_add, NULL); + aq_err = hw->aq.asq_last_status; + fcnt = i40e_update_filter_state(num_add, list, add_head, aq_ret); + vsi->active_filters += fcnt; + + if (fcnt != num_add) { + *promisc_changed = true; + set_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state); + vsi->promisc_threshold = (vsi->active_filters * 3) / 4; + dev_warn(&vsi->back->pdev->dev, + "Error %s adding RX filters on %s, promiscuous mode forced on\n", + i40e_aq_str(hw, aq_err), + vsi_name); + } +} + +/** * i40e_sync_vsi_filters - Update the VSI filter list to the HW * @vsi: ptr to the VSI * @@ -1826,22 +1866,25 @@ i40e_update_filter_state(int count, **/ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) { - struct i40e_mac_filter *f, *ftmp, *add_head = NULL; - struct list_head tmp_add_list, tmp_del_list; + struct hlist_head tmp_add_list, tmp_del_list; + struct i40e_mac_filter *f, *add_head = NULL; struct i40e_hw *hw = &vsi->back->hw; + unsigned int vlan_any_filters = 0; + unsigned int non_vlan_filters = 0; + unsigned int vlan_filters = 0; bool promisc_changed = false; char vsi_name[16] = "PF"; int filter_list_len = 0; - u32 changed_flags = 0; i40e_status aq_ret = 0; - int retval = 0; + u32 changed_flags = 0; + struct hlist_node *h; struct i40e_pf *pf; int num_add = 0; int num_del = 0; - int aq_err = 0; + int retval = 0; u16 cmd_flags; int list_size; - int fcnt; + int bkt; /* empty array typed pointers, kcalloc later */ struct i40e_aqc_add_macvlan_element_data *add_list; @@ -1856,8 +1899,8 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) vsi->current_netdev_flags = vsi->netdev->flags; } - INIT_LIST_HEAD(&tmp_add_list); - INIT_LIST_HEAD(&tmp_del_list); + INIT_HLIST_HEAD(&tmp_add_list); + INIT_HLIST_HEAD(&tmp_del_list); if (vsi->type == I40E_VSI_SRIOV) snprintf(vsi_name, sizeof(vsi_name) - 1, "VF %d", vsi->vf_id); @@ -1867,41 +1910,98 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) if (vsi->flags & I40E_VSI_FLAG_FILTER_CHANGED) { vsi->flags &= ~I40E_VSI_FLAG_FILTER_CHANGED; - spin_lock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); /* Create a list of filters to delete. */ - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { if (f->state == I40E_FILTER_REMOVE) { - WARN_ON(f->counter != 0); /* Move the element into temporary del_list */ - list_move_tail(&f->list, &tmp_del_list); + hash_del(&f->hlist); + hlist_add_head(&f->hlist, &tmp_del_list); vsi->active_filters--; + + /* Avoid counting removed filters */ + continue; } if (f->state == I40E_FILTER_NEW) { - WARN_ON(f->counter == 0); - /* Move the element into temporary add_list */ - list_move_tail(&f->list, &tmp_add_list); + hash_del(&f->hlist); + hlist_add_head(&f->hlist, &tmp_add_list); } + + /* Count the number of each type of filter we have + * remaining, ignoring any filters we're about to + * delete. + */ + if (f->vlan > 0) + vlan_filters++; + else if (!f->vlan) + non_vlan_filters++; + else + vlan_any_filters++; } - spin_unlock_bh(&vsi->mac_filter_list_lock); + + /* We should never have VLAN=-1 filters at the same time as we + * have either VLAN=0 or VLAN>0 filters, so warn about this + * case here to help catch any issues. + */ + WARN_ON(vlan_any_filters && (vlan_filters + non_vlan_filters)); + + /* If we only have VLAN=0 filters remaining, and don't have + * any other VLAN filters, we need to convert these VLAN=0 + * filters into VLAN=-1 (I40E_VLAN_ANY) so that we operate + * correctly in non-VLAN mode and receive all traffic tagged + * or untagged. + */ + if (non_vlan_filters && !vlan_filters) { + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, + hlist) { + /* Only replace VLAN=0 filters */ + if (f->vlan) + continue; + + /* Allocate a replacement element */ + add_head = kzalloc(sizeof(*add_head), + GFP_KERNEL); + if (!add_head) + goto err_no_memory_locked; + + /* Copy the filter, with new state and VLAN */ + *add_head = *f; + add_head->state = I40E_FILTER_NEW; + add_head->vlan = I40E_VLAN_ANY; + + /* Move the replacement to the add list */ + INIT_HLIST_NODE(&add_head->hlist); + hlist_add_head(&add_head->hlist, + &tmp_add_list); + + /* Move the original to the delete list */ + f->state = I40E_FILTER_REMOVE; + hash_del(&f->hlist); + hlist_add_head(&f->hlist, &tmp_del_list); + vsi->active_filters--; + } + + /* Also update any filters on the tmp_add list */ + hlist_for_each_entry(f, &tmp_add_list, hlist) { + if (!f->vlan) + f->vlan = I40E_VLAN_ANY; + } + add_head = NULL; + } + spin_unlock_bh(&vsi->mac_filter_hash_lock); } /* Now process 'del_list' outside the lock */ - if (!list_empty(&tmp_del_list)) { + if (!hlist_empty(&tmp_del_list)) { filter_list_len = hw->aq.asq_buf_size / sizeof(struct i40e_aqc_remove_macvlan_element_data); list_size = filter_list_len * sizeof(struct i40e_aqc_remove_macvlan_element_data); del_list = kzalloc(list_size, GFP_ATOMIC); - if (!del_list) { - /* Undo VSI's MAC filter entry element updates */ - spin_lock_bh(&vsi->mac_filter_list_lock); - i40e_undo_del_filter_entries(vsi, &tmp_del_list); - spin_unlock_bh(&vsi->mac_filter_list_lock); - retval = -ENOMEM; - goto out; - } + if (!del_list) + goto err_no_memory; - list_for_each_entry_safe(f, ftmp, &tmp_del_list, list) { + hlist_for_each_entry_safe(f, h, &tmp_del_list, hlist) { cmd_flags = 0; /* add to delete list */ @@ -1920,68 +2020,47 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) /* flush a full buffer */ if (num_del == filter_list_len) { - aq_ret = i40e_aq_remove_macvlan(hw, vsi->seid, - del_list, - num_del, NULL); - aq_err = hw->aq.asq_last_status; - num_del = 0; + i40e_aqc_del_filters(vsi, vsi_name, del_list, + num_del, &retval); memset(del_list, 0, list_size); - - /* Explicitly ignore and do not report when - * firmware returns ENOENT. - */ - if (aq_ret && !(aq_err == I40E_AQ_RC_ENOENT)) { - retval = -EIO; - dev_info(&pf->pdev->dev, - "ignoring delete macvlan error on %s, err %s, aq_err %s\n", - vsi_name, - i40e_stat_str(hw, aq_ret), - i40e_aq_str(hw, aq_err)); - } + num_del = 0; } /* Release memory for MAC filter entries which were * synced up with HW. */ - list_del(&f->list); + hlist_del(&f->hlist); kfree(f); } if (num_del) { - aq_ret = i40e_aq_remove_macvlan(hw, vsi->seid, del_list, - num_del, NULL); - aq_err = hw->aq.asq_last_status; - num_del = 0; - - /* Explicitly ignore and do not report when firmware - * returns ENOENT. - */ - if (aq_ret && !(aq_err == I40E_AQ_RC_ENOENT)) { - retval = -EIO; - dev_info(&pf->pdev->dev, - "ignoring delete macvlan error on %s, err %s aq_err %s\n", - vsi_name, - i40e_stat_str(hw, aq_ret), - i40e_aq_str(hw, aq_err)); - } + i40e_aqc_del_filters(vsi, vsi_name, del_list, + num_del, &retval); } kfree(del_list); del_list = NULL; } - if (!list_empty(&tmp_add_list)) { + /* After finishing notifying firmware of the deleted filters, update + * the cached value of vsi->has_vlan_filter. Note that we are safe to + * use just !!vlan_filters here because if we only have VLAN=0 (that + * is, non_vlan_filters) these will all be converted to VLAN=-1 in the + * logic above already so this value would still be correct. + */ + vsi->has_vlan_filter = !!vlan_filters; + + if (!hlist_empty(&tmp_add_list)) { /* Do all the adds now. */ filter_list_len = hw->aq.asq_buf_size / sizeof(struct i40e_aqc_add_macvlan_element_data); list_size = filter_list_len * sizeof(struct i40e_aqc_add_macvlan_element_data); add_list = kzalloc(list_size, GFP_ATOMIC); - if (!add_list) { - retval = -ENOMEM; - goto out; - } + if (!add_list) + goto err_no_memory; + num_add = 0; - list_for_each_entry(f, &tmp_add_list, list) { + hlist_for_each_entry(f, &tmp_add_list, hlist) { if (test_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state)) { f->state = I40E_FILTER_FAILED; @@ -2006,57 +2085,28 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) /* flush a full buffer */ if (num_add == filter_list_len) { - aq_ret = i40e_aq_add_macvlan(hw, vsi->seid, - add_list, num_add, - NULL); - aq_err = hw->aq.asq_last_status; - fcnt = i40e_update_filter_state(num_add, - add_list, - add_head, - aq_ret); - vsi->active_filters += fcnt; - - if (fcnt != num_add) { - promisc_changed = true; - set_bit(__I40E_FILTER_OVERFLOW_PROMISC, - &vsi->state); - vsi->promisc_threshold = - (vsi->active_filters * 3) / 4; - dev_warn(&pf->pdev->dev, - "Error %s adding RX filters on %s, promiscuous mode forced on\n", - i40e_aq_str(hw, aq_err), - vsi_name); - } + i40e_aqc_add_filters(vsi, vsi_name, add_list, + add_head, num_add, + &promisc_changed); memset(add_list, 0, list_size); num_add = 0; } } if (num_add) { - aq_ret = i40e_aq_add_macvlan(hw, vsi->seid, - add_list, num_add, NULL); - aq_err = hw->aq.asq_last_status; - fcnt = i40e_update_filter_state(num_add, add_list, - add_head, aq_ret); - vsi->active_filters += fcnt; - if (fcnt != num_add) { - promisc_changed = true; - set_bit(__I40E_FILTER_OVERFLOW_PROMISC, - &vsi->state); - vsi->promisc_threshold = - (vsi->active_filters * 3) / 4; - dev_warn(&pf->pdev->dev, - "Error %s adding RX filters on %s, promiscuous mode forced on\n", - i40e_aq_str(hw, aq_err), vsi_name); - } + i40e_aqc_add_filters(vsi, vsi_name, add_list, add_head, + num_add, &promisc_changed); } /* Now move all of the filters from the temp add list back to * the VSI's list. */ - spin_lock_bh(&vsi->mac_filter_list_lock); - list_for_each_entry_safe(f, ftmp, &tmp_add_list, list) { - list_move_tail(&f->list, &vsi->mac_filter_list); + spin_lock_bh(&vsi->mac_filter_hash_lock); + hlist_for_each_entry_safe(f, h, &tmp_add_list, hlist) { + u64 key = i40e_addr_to_hkey(f->macaddr); + + hlist_del(&f->hlist); + hash_add(vsi->mac_filter_hash, &f->hlist, key); } - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); kfree(add_list); add_list = NULL; } @@ -2068,12 +2118,12 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi) /* See if we have any failed filters. We can't drop out of * promiscuous until these have all been deleted. */ - spin_lock_bh(&vsi->mac_filter_list_lock); - list_for_each_entry(f, &vsi->mac_filter_list, list) { + spin_lock_bh(&vsi->mac_filter_hash_lock); + hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { if (f->state == I40E_FILTER_FAILED) failed_count++; } - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); if (!failed_count) { dev_info(&pf->pdev->dev, "filter logjam cleared on %s, leaving overflow promiscuous mode\n", @@ -2201,6 +2251,18 @@ out: clear_bit(__I40E_CONFIG_BUSY, &vsi->state); return retval; + +err_no_memory: + /* Restore elements on the temporary add and delete lists */ + spin_lock_bh(&vsi->mac_filter_hash_lock); +err_no_memory_locked: + i40e_undo_filter_entries(vsi, &tmp_del_list); + i40e_undo_filter_entries(vsi, &tmp_add_list); + spin_unlock_bh(&vsi->mac_filter_hash_lock); + + vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; + clear_bit(__I40E_CONFIG_BUSY, &vsi->state); + return -ENOMEM; } /** @@ -2239,13 +2301,8 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf) static int i40e_change_mtu(struct net_device *netdev, int new_mtu) { struct i40e_netdev_priv *np = netdev_priv(netdev); - int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; struct i40e_vsi *vsi = np->vsi; - /* MTU < 68 is an error and causes problems on some kernels */ - if ((new_mtu < 68) || (max_frame > I40E_MAX_RXBUFFER)) - return -EINVAL; - netdev_info(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); netdev->mtu = new_mtu; @@ -2360,34 +2417,33 @@ static void i40e_vlan_rx_register(struct net_device *netdev, u32 features) **/ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) { - struct i40e_mac_filter *f, *ftmp, *add_f; - bool is_netdev, is_vf; - - is_vf = (vsi->type == I40E_VSI_SRIOV); - is_netdev = !!(vsi->netdev); + struct i40e_mac_filter *f, *add_f, *del_f; + struct hlist_node *h; + int bkt; /* Locked once because all functions invoked below iterates list*/ - spin_lock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); - if (is_netdev) { - add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, vid, - is_vf, is_netdev); + if (vsi->netdev) { + add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, vid); if (!add_f) { dev_info(&vsi->back->pdev->dev, "Could not add vlan filter %d for %pM\n", vid, vsi->netdev->dev_addr); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); return -ENOMEM; } } - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { - add_f = i40e_add_filter(vsi, f->macaddr, vid, is_vf, is_netdev); + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (f->state == I40E_FILTER_REMOVE) + continue; + add_f = i40e_add_filter(vsi, f->macaddr, vid); if (!add_f) { dev_info(&vsi->back->pdev->dev, "Could not add vlan filter %d for %pM\n", vid, f->macaddr); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); return -ENOMEM; } } @@ -2397,19 +2453,17 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) * with 0, so we now accept untagged and specified tagged traffic * (and not all tags along with untagged) */ - if (vid > 0) { - if (is_netdev && i40e_find_filter(vsi, vsi->netdev->dev_addr, - I40E_VLAN_ANY, - is_vf, is_netdev)) { - i40e_del_filter(vsi, vsi->netdev->dev_addr, - I40E_VLAN_ANY, is_vf, is_netdev); - add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, 0, - is_vf, is_netdev); + if (vid > 0 && vsi->netdev) { + del_f = i40e_find_filter(vsi, vsi->netdev->dev_addr, + I40E_VLAN_ANY); + if (del_f) { + __i40e_del_filter(vsi, del_f); + add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, 0); if (!add_f) { dev_info(&vsi->back->pdev->dev, "Could not add filter 0 for %pM\n", vsi->netdev->dev_addr); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); return -ENOMEM; } } @@ -2417,25 +2471,26 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */ if (vid > 0 && !vsi->info.pvid) { - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { - if (!i40e_find_filter(vsi, f->macaddr, I40E_VLAN_ANY, - is_vf, is_netdev)) + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (f->state == I40E_FILTER_REMOVE) continue; - i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY, - is_vf, is_netdev); - add_f = i40e_add_filter(vsi, f->macaddr, - 0, is_vf, is_netdev); + del_f = i40e_find_filter(vsi, f->macaddr, + I40E_VLAN_ANY); + if (!del_f) + continue; + __i40e_del_filter(vsi, del_f); + add_f = i40e_add_filter(vsi, f->macaddr, 0); if (!add_f) { dev_info(&vsi->back->pdev->dev, "Could not add filter 0 for %pM\n", f->macaddr); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); return -ENOMEM; } } } - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); /* schedule our worker thread which will take care of * applying the new filter changes @@ -2448,79 +2503,31 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) * i40e_vsi_kill_vlan - Remove vsi membership for given vlan * @vsi: the vsi being configured * @vid: vlan id to be removed (0 = untagged only , -1 = any) - * - * Return: 0 on success or negative otherwise **/ -int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) +void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) { struct net_device *netdev = vsi->netdev; - struct i40e_mac_filter *f, *ftmp, *add_f; - bool is_vf, is_netdev; - int filter_count = 0; - - is_vf = (vsi->type == I40E_VSI_SRIOV); - is_netdev = !!(netdev); + struct i40e_mac_filter *f; + struct hlist_node *h; + int bkt; /* Locked once because all functions invoked below iterates list */ - spin_lock_bh(&vsi->mac_filter_list_lock); - - if (is_netdev) - i40e_del_filter(vsi, netdev->dev_addr, vid, is_vf, is_netdev); - - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) - i40e_del_filter(vsi, f->macaddr, vid, is_vf, is_netdev); + spin_lock_bh(&vsi->mac_filter_hash_lock); - /* go through all the filters for this VSI and if there is only - * vid == 0 it means there are no other filters, so vid 0 must - * be replaced with -1. This signifies that we should from now - * on accept any traffic (with any tag present, or untagged) - */ - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if (is_netdev) { - if (f->vlan && - ether_addr_equal(netdev->dev_addr, f->macaddr)) - filter_count++; - } + if (vsi->netdev) + i40e_del_filter(vsi, netdev->dev_addr, vid); - if (f->vlan) - filter_count++; + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (f->vlan == vid) + __i40e_del_filter(vsi, f); } - if (!filter_count && is_netdev) { - i40e_del_filter(vsi, netdev->dev_addr, 0, is_vf, is_netdev); - f = i40e_add_filter(vsi, netdev->dev_addr, I40E_VLAN_ANY, - is_vf, is_netdev); - if (!f) { - dev_info(&vsi->back->pdev->dev, - "Could not add filter %d for %pM\n", - I40E_VLAN_ANY, netdev->dev_addr); - spin_unlock_bh(&vsi->mac_filter_list_lock); - return -ENOMEM; - } - } - - if (!filter_count) { - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { - i40e_del_filter(vsi, f->macaddr, 0, is_vf, is_netdev); - add_f = i40e_add_filter(vsi, f->macaddr, I40E_VLAN_ANY, - is_vf, is_netdev); - if (!add_f) { - dev_info(&vsi->back->pdev->dev, - "Could not add filter %d for %pM\n", - I40E_VLAN_ANY, f->macaddr); - spin_unlock_bh(&vsi->mac_filter_list_lock); - return -ENOMEM; - } - } - } - - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); /* schedule our worker thread which will take care of * applying the new filter changes */ i40e_service_event_schedule(vsi->back); - return 0; } /** @@ -3322,6 +3329,33 @@ static irqreturn_t i40e_msix_clean_rings(int irq, void *data) } /** + * i40e_irq_affinity_notify - Callback for affinity changes + * @notify: context as to what irq was changed + * @mask: the new affinity mask + * + * This is a callback function used by the irq_set_affinity_notifier function + * so that we may register to receive changes to the irq affinity masks. + **/ +static void i40e_irq_affinity_notify(struct irq_affinity_notify *notify, + const cpumask_t *mask) +{ + struct i40e_q_vector *q_vector = + container_of(notify, struct i40e_q_vector, affinity_notify); + + q_vector->affinity_mask = *mask; +} + +/** + * i40e_irq_affinity_release - Callback for affinity notifier release + * @ref: internal core kernel usage + * + * This is a callback function used by the irq_set_affinity_notifier function + * to inform the current notification subscriber that they will no longer + * receive notifications. + **/ +static void i40e_irq_affinity_release(struct kref *ref) {} + +/** * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts * @vsi: the VSI being configured * @basename: name for the vector @@ -3336,10 +3370,13 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename) int rx_int_idx = 0; int tx_int_idx = 0; int vector, err; + int irq_num; for (vector = 0; vector < q_vectors; vector++) { struct i40e_q_vector *q_vector = vsi->q_vectors[vector]; + irq_num = pf->msix_entries[base + vector].vector; + if (q_vector->tx.ring && q_vector->rx.ring) { snprintf(q_vector->name, sizeof(q_vector->name) - 1, "%s-%s-%d", basename, "TxRx", rx_int_idx++); @@ -3354,7 +3391,7 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename) /* skip this unused q_vector */ continue; } - err = request_irq(pf->msix_entries[base + vector].vector, + err = request_irq(irq_num, vsi->irq_handler, 0, q_vector->name, @@ -3364,9 +3401,13 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename) "MSIX request_irq failed, error: %d\n", err); goto free_queue_irqs; } + + /* register for affinity change notifications */ + q_vector->affinity_notify.notify = i40e_irq_affinity_notify; + q_vector->affinity_notify.release = i40e_irq_affinity_release; + irq_set_affinity_notifier(irq_num, &q_vector->affinity_notify); /* assign the mask for this irq */ - irq_set_affinity_hint(pf->msix_entries[base + vector].vector, - &q_vector->affinity_mask); + irq_set_affinity_hint(irq_num, &q_vector->affinity_mask); } vsi->irqs_ready = true; @@ -3375,10 +3416,10 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename) free_queue_irqs: while (vector) { vector--; - irq_set_affinity_hint(pf->msix_entries[base + vector].vector, - NULL); - free_irq(pf->msix_entries[base + vector].vector, - &(vsi->q_vectors[vector])); + irq_num = pf->msix_entries[base + vector].vector; + irq_set_affinity_notifier(irq_num, NULL); + irq_set_affinity_hint(irq_num, NULL); + free_irq(irq_num, &vsi->q_vectors[vector]); } return err; } @@ -3973,30 +4014,36 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable) } /** - * i40e_vsi_control_rings - Start or stop a VSI's rings + * i40e_vsi_start_rings - Start a VSI's rings * @vsi: the VSI being configured - * @enable: start or stop the rings **/ -int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request) +int i40e_vsi_start_rings(struct i40e_vsi *vsi) { int ret = 0; /* do rx first for enable and last for disable */ - if (request) { - ret = i40e_vsi_control_rx(vsi, request); - if (ret) - return ret; - ret = i40e_vsi_control_tx(vsi, request); - } else { - /* Ignore return value, we need to shutdown whatever we can */ - i40e_vsi_control_tx(vsi, request); - i40e_vsi_control_rx(vsi, request); - } + ret = i40e_vsi_control_rx(vsi, true); + if (ret) + return ret; + ret = i40e_vsi_control_tx(vsi, true); return ret; } /** + * i40e_vsi_stop_rings - Stop a VSI's rings + * @vsi: the VSI being configured + **/ +void i40e_vsi_stop_rings(struct i40e_vsi *vsi) +{ + /* do rx first for enable and last for disable + * Ignore return value, we need to shutdown whatever we can + */ + i40e_vsi_control_tx(vsi, false); + i40e_vsi_control_rx(vsi, false); +} + +/** * i40e_vsi_free_irq - Free the irq association with the OS * @vsi: the VSI being configured **/ @@ -4017,19 +4064,23 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi) vsi->irqs_ready = false; for (i = 0; i < vsi->num_q_vectors; i++) { - u16 vector = i + base; + int irq_num; + u16 vector; + + vector = i + base; + irq_num = pf->msix_entries[vector].vector; /* free only the irqs that were actually requested */ if (!vsi->q_vectors[i] || !vsi->q_vectors[i]->num_ringpairs) continue; + /* clear the affinity notifier in the IRQ descriptor */ + irq_set_affinity_notifier(irq_num, NULL); /* clear the affinity_mask in the IRQ descriptor */ - irq_set_affinity_hint(pf->msix_entries[vector].vector, - NULL); - synchronize_irq(pf->msix_entries[vector].vector); - free_irq(pf->msix_entries[vector].vector, - vsi->q_vectors[i]); + irq_set_affinity_hint(irq_num, NULL); + synchronize_irq(irq_num); + free_irq(irq_num, vsi->q_vectors[i]); /* Tear down the interrupt queue link list * @@ -5190,7 +5241,7 @@ static int i40e_up_complete(struct i40e_vsi *vsi) i40e_configure_msi_and_legacy(vsi); /* start rings */ - err = i40e_vsi_control_rings(vsi, true); + err = i40e_vsi_start_rings(vsi); if (err) return err; @@ -5287,7 +5338,7 @@ void i40e_down(struct i40e_vsi *vsi) netif_tx_disable(vsi->netdev); } i40e_vsi_disable_irq(vsi); - i40e_vsi_control_rings(vsi, false); + i40e_vsi_stop_rings(vsi); i40e_napi_disable_all(vsi); for (i = 0; i < vsi->num_queue_pairs; i++) { @@ -6670,7 +6721,6 @@ static int i40e_vsi_clear(struct i40e_vsi *vsi); static void i40e_fdir_sb_setup(struct i40e_pf *pf) { struct i40e_vsi *vsi; - int i; /* quick workaround for an NVM issue that leaves a critical register * uninitialized @@ -6681,6 +6731,7 @@ static void i40e_fdir_sb_setup(struct i40e_pf *pf) 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb, 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21, 0x95b3a76d}; + int i; for (i = 0; i <= I40E_GLQF_HKEY_MAX_INDEX; i++) wr32(&pf->hw, I40E_GLQF_HKEY(i), hkey[i]); @@ -6690,13 +6741,7 @@ static void i40e_fdir_sb_setup(struct i40e_pf *pf) return; /* find existing VSI and see if it needs configuring */ - vsi = NULL; - for (i = 0; i < pf->num_alloc_vsi; i++) { - if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { - vsi = pf->vsi[i]; - break; - } - } + vsi = i40e_find_vsi_by_type(pf, I40E_VSI_FDIR); /* create a new VSI if none exists */ if (!vsi) { @@ -6718,15 +6763,12 @@ static void i40e_fdir_sb_setup(struct i40e_pf *pf) **/ static void i40e_fdir_teardown(struct i40e_pf *pf) { - int i; + struct i40e_vsi *vsi; i40e_fdir_filter_exit(pf); - for (i = 0; i < pf->num_alloc_vsi; i++) { - if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) { - i40e_vsi_release(pf->vsi[i]); - break; - } - } + vsi = i40e_find_vsi_by_type(pf, I40E_VSI_FDIR); + if (vsi) + i40e_vsi_release(vsi); } /** @@ -7354,7 +7396,7 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) pf->rss_table_size : 64; vsi->netdev_registered = false; vsi->work_limit = I40E_DEFAULT_IRQ_WORK; - INIT_LIST_HEAD(&vsi->mac_filter_list); + hash_init(vsi->mac_filter_hash); vsi->irqs_ready = false; ret = i40e_set_num_rings_in_vsi(vsi); @@ -7369,7 +7411,7 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type) i40e_vsi_setup_irqhandler(vsi, i40e_msix_clean_rings); /* Initialize VSI lock */ - spin_lock_init(&vsi->mac_filter_list_lock); + spin_lock_init(&vsi->mac_filter_hash_lock); pf->vsi[vsi_idx] = vsi; ret = vsi_idx; goto unlock_pf; @@ -8345,8 +8387,8 @@ int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count) i40e_pf_config_rss(pf); } - dev_info(&pf->pdev->dev, "RSS count/HW max RSS count: %d/%d\n", - pf->alloc_rss_size, pf->rss_size_max); + dev_info(&pf->pdev->dev, "User requested queue count/HW max RSS count: %d/%d\n", + vsi->req_queue_pairs, pf->rss_size_max); return pf->alloc_rss_size; } @@ -8489,15 +8531,6 @@ static int i40e_sw_init(struct i40e_pf *pf) int err = 0; int size; - pf->msg_enable = netif_msg_init(I40E_DEFAULT_MSG_ENABLE, - (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)); - if (debug != -1 && debug != I40E_DEFAULT_MSG_ENABLE) { - if (I40E_DEBUG_USER & debug) - pf->hw.debug_mask = debug; - pf->msg_enable = netif_msg_init((debug & ~I40E_DEBUG_USER), - I40E_DEFAULT_MSG_ENABLE); - } - /* Set default capability flags */ pf->flags = I40E_FLAG_RX_CSUM_ENABLED | I40E_FLAG_MSI_ENABLED | @@ -9163,24 +9196,18 @@ static int i40e_config_netdev(struct i40e_vsi *vsi) if (vsi->type == I40E_VSI_MAIN) { SET_NETDEV_DEV(netdev, &pf->pdev->dev); ether_addr_copy(mac_addr, hw->mac.perm_addr); - /* The following steps are necessary to prevent reception - * of tagged packets - some older NVM configurations load a - * default a MAC-VLAN filter that accepts any tagged packet - * which must be replaced by a normal filter. - */ - i40e_rm_default_mac_filter(vsi, mac_addr); - spin_lock_bh(&vsi->mac_filter_list_lock); - i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY, false, true); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); + i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY); + spin_unlock_bh(&vsi->mac_filter_hash_lock); } else { /* relate the VSI_VMDQ name to the VSI_MAIN name */ snprintf(netdev->name, IFNAMSIZ, "%sv%%d", pf->vsi[pf->lan_vsi]->netdev->name); random_ether_addr(mac_addr); - spin_lock_bh(&vsi->mac_filter_list_lock); - i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY, false, false); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); + i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY); + spin_unlock_bh(&vsi->mac_filter_hash_lock); } ether_addr_copy(netdev->dev_addr, mac_addr); @@ -9198,6 +9225,11 @@ static int i40e_config_netdev(struct i40e_vsi *vsi) i40e_fcoe_config_netdev(netdev, vsi); #endif + /* MTU range: 68 - 9706 */ + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = I40E_MAX_RXBUFFER - + (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); + return 0; } @@ -9264,7 +9296,9 @@ static int i40e_add_vsi(struct i40e_vsi *vsi) struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; struct i40e_vsi_context ctxt; - struct i40e_mac_filter *f, *ftmp; + struct i40e_mac_filter *f; + struct hlist_node *h; + int bkt; u8 enabled_tc = 0x1; /* TC0 enabled */ int f_count = 0; @@ -9463,13 +9497,13 @@ static int i40e_add_vsi(struct i40e_vsi *vsi) vsi->active_filters = 0; clear_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state); - spin_lock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); /* If macvlan filters already exist, force them to get loaded */ - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { f->state = I40E_FILTER_NEW; f_count++; } - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_unlock_bh(&vsi->mac_filter_hash_lock); if (f_count) { vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; @@ -9499,11 +9533,12 @@ err: **/ int i40e_vsi_release(struct i40e_vsi *vsi) { - struct i40e_mac_filter *f, *ftmp; + struct i40e_mac_filter *f; + struct hlist_node *h; struct i40e_veb *veb = NULL; struct i40e_pf *pf; u16 uplink_seid; - int i, n; + int i, n, bkt; pf = vsi->back; @@ -9533,11 +9568,19 @@ int i40e_vsi_release(struct i40e_vsi *vsi) i40e_vsi_disable_irq(vsi); } - spin_lock_bh(&vsi->mac_filter_list_lock); - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) - i40e_del_filter(vsi, f->macaddr, f->vlan, - f->is_vf, f->is_netdev); - spin_unlock_bh(&vsi->mac_filter_list_lock); + spin_lock_bh(&vsi->mac_filter_hash_lock); + + /* clear the sync flag on all filters */ + if (vsi->netdev) { + __dev_uc_unsync(vsi->netdev, NULL); + __dev_mc_unsync(vsi->netdev, NULL); + } + + /* make sure any remaining filters are marked for deletion */ + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) + __i40e_del_filter(vsi, f); + + spin_unlock_bh(&vsi->mac_filter_hash_lock); i40e_sync_vsi_filters(vsi); @@ -9681,8 +9724,6 @@ static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi) pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0; pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid; i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc); - if (vsi->type == I40E_VSI_MAIN) - i40e_rm_default_mac_filter(vsi, pf->hw.mac.perm_addr); /* assign it some queues */ ret = i40e_alloc_rings(vsi); @@ -10806,10 +10847,12 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) mutex_init(&hw->aq.asq_mutex); mutex_init(&hw->aq.arq_mutex); - if (debug != -1) { - pf->msg_enable = pf->hw.debug_mask; - pf->msg_enable = debug; - } + pf->msg_enable = netif_msg_init(debug, + NETIF_MSG_DRV | + NETIF_MSG_PROBE | + NETIF_MSG_LINK); + if (debug < -1) + pf->hw.debug_mask = debug; /* do a special CORER for clearing PXE mode once at init */ if (hw->revision_id == 0 && @@ -10951,7 +10994,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = i40e_init_pf_dcb(pf); if (err) { dev_info(&pdev->dev, "DCB init failed %d, disabled\n", err); - pf->flags &= ~(I40E_FLAG_DCB_CAPABLE & I40E_FLAG_DCB_ENABLED); + pf->flags &= ~(I40E_FLAG_DCB_CAPABLE | I40E_FLAG_DCB_ENABLED); /* Continue without DCB enabled */ } #endif /* CONFIG_I40E_DCB */ |