diff options
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_main.c | 772 |
1 files changed, 675 insertions, 97 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 3a820b3ff466..0fbac51b7cca 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -646,14 +646,17 @@ static void iavf_configure_rx(struct iavf_adapter *adapter) * mac_vlan_list_lock. **/ static struct -iavf_vlan_filter *iavf_find_vlan(struct iavf_adapter *adapter, u16 vlan) +iavf_vlan_filter *iavf_find_vlan(struct iavf_adapter *adapter, + struct iavf_vlan vlan) { struct iavf_vlan_filter *f; list_for_each_entry(f, &adapter->vlan_filter_list, list) { - if (vlan == f->vlan) + if (f->vlan.vid == vlan.vid && + f->vlan.tpid == vlan.tpid) return f; } + return NULL; } @@ -665,7 +668,8 @@ iavf_vlan_filter *iavf_find_vlan(struct iavf_adapter *adapter, u16 vlan) * Returns ptr to the filter object or NULL when no memory available. **/ static struct -iavf_vlan_filter *iavf_add_vlan(struct iavf_adapter *adapter, u16 vlan) +iavf_vlan_filter *iavf_add_vlan(struct iavf_adapter *adapter, + struct iavf_vlan vlan) { struct iavf_vlan_filter *f = NULL; @@ -694,7 +698,7 @@ clearout: * @adapter: board private structure * @vlan: VLAN tag **/ -static void iavf_del_vlan(struct iavf_adapter *adapter, u16 vlan) +static void iavf_del_vlan(struct iavf_adapter *adapter, struct iavf_vlan vlan) { struct iavf_vlan_filter *f; @@ -720,8 +724,55 @@ static void iavf_restore_filters(struct iavf_adapter *adapter) u16 vid; /* re-add all VLAN filters */ - for_each_set_bit(vid, adapter->vsi.active_vlans, VLAN_N_VID) - iavf_add_vlan(adapter, vid); + for_each_set_bit(vid, adapter->vsi.active_cvlans, VLAN_N_VID) + iavf_add_vlan(adapter, IAVF_VLAN(vid, ETH_P_8021Q)); + + for_each_set_bit(vid, adapter->vsi.active_svlans, VLAN_N_VID) + iavf_add_vlan(adapter, IAVF_VLAN(vid, ETH_P_8021AD)); +} + +/** + * iavf_get_num_vlans_added - get number of VLANs added + * @adapter: board private structure + */ +static u16 iavf_get_num_vlans_added(struct iavf_adapter *adapter) +{ + return bitmap_weight(adapter->vsi.active_cvlans, VLAN_N_VID) + + bitmap_weight(adapter->vsi.active_svlans, VLAN_N_VID); +} + +/** + * iavf_get_max_vlans_allowed - get maximum VLANs allowed for this VF + * @adapter: board private structure + * + * This depends on the negotiated VLAN capability. For VIRTCHNL_VF_OFFLOAD_VLAN, + * do not impose a limit as that maintains current behavior and for + * VIRTCHNL_VF_OFFLOAD_VLAN_V2, use the maximum allowed sent from the PF. + **/ +static u16 iavf_get_max_vlans_allowed(struct iavf_adapter *adapter) +{ + /* don't impose any limit for VIRTCHNL_VF_OFFLOAD_VLAN since there has + * never been a limit on the VF driver side + */ + if (VLAN_ALLOWED(adapter)) + return VLAN_N_VID; + else if (VLAN_V2_ALLOWED(adapter)) + return adapter->vlan_v2_caps.filtering.max_filters; + + return 0; +} + +/** + * iavf_max_vlans_added - check if maximum VLANs allowed already exist + * @adapter: board private structure + **/ +static bool iavf_max_vlans_added(struct iavf_adapter *adapter) +{ + if (iavf_get_num_vlans_added(adapter) < + iavf_get_max_vlans_allowed(adapter)) + return false; + + return true; } /** @@ -735,13 +786,23 @@ static int iavf_vlan_rx_add_vid(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); - if (!VLAN_ALLOWED(adapter)) + if (!VLAN_FILTERING_ALLOWED(adapter)) + return -EIO; + + if (iavf_max_vlans_added(adapter)) { + netdev_err(netdev, "Max allowed VLAN filters %u. Remove existing VLANs or disable filtering via Ethtool if supported.\n", + iavf_get_max_vlans_allowed(adapter)); return -EIO; + } - if (iavf_add_vlan(adapter, vid) == NULL) + if (!iavf_add_vlan(adapter, IAVF_VLAN(vid, be16_to_cpu(proto)))) return -ENOMEM; - set_bit(vid, adapter->vsi.active_vlans); + if (proto == cpu_to_be16(ETH_P_8021Q)) + set_bit(vid, adapter->vsi.active_cvlans); + else + set_bit(vid, adapter->vsi.active_svlans); + return 0; } @@ -756,8 +817,11 @@ static int iavf_vlan_rx_kill_vid(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); - iavf_del_vlan(adapter, vid); - clear_bit(vid, adapter->vsi.active_vlans); + iavf_del_vlan(adapter, IAVF_VLAN(vid, be16_to_cpu(proto))); + if (proto == cpu_to_be16(ETH_P_8021Q)) + clear_bit(vid, adapter->vsi.active_cvlans); + else + clear_bit(vid, adapter->vsi.active_svlans); return 0; } @@ -1152,6 +1216,86 @@ static void iavf_free_queues(struct iavf_adapter *adapter) } /** + * iavf_set_queue_vlan_tag_loc - set location for VLAN tag offload + * @adapter: board private structure + * + * Based on negotiated capabilities, the VLAN tag needs to be inserted and/or + * stripped in certain descriptor fields. Instead of checking the offload + * capability bits in the hot path, cache the location the ring specific + * flags. + */ +void iavf_set_queue_vlan_tag_loc(struct iavf_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_active_queues; i++) { + struct iavf_ring *tx_ring = &adapter->tx_rings[i]; + struct iavf_ring *rx_ring = &adapter->rx_rings[i]; + + /* prevent multiple L2TAG bits being set after VFR */ + tx_ring->flags &= + ~(IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1 | + IAVF_TXR_FLAGS_VLAN_TAG_LOC_L2TAG2); + rx_ring->flags &= + ~(IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1 | + IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2); + + if (VLAN_ALLOWED(adapter)) { + tx_ring->flags |= IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + rx_ring->flags |= IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + } else if (VLAN_V2_ALLOWED(adapter)) { + struct virtchnl_vlan_supported_caps *stripping_support; + struct virtchnl_vlan_supported_caps *insertion_support; + + stripping_support = + &adapter->vlan_v2_caps.offloads.stripping_support; + insertion_support = + &adapter->vlan_v2_caps.offloads.insertion_support; + + if (stripping_support->outer) { + if (stripping_support->outer & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1) + rx_ring->flags |= + IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + else if (stripping_support->outer & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2) + rx_ring->flags |= + IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2; + } else if (stripping_support->inner) { + if (stripping_support->inner & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1) + rx_ring->flags |= + IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + else if (stripping_support->inner & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2) + rx_ring->flags |= + IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2; + } + + if (insertion_support->outer) { + if (insertion_support->outer & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1) + tx_ring->flags |= + IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + else if (insertion_support->outer & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2) + tx_ring->flags |= + IAVF_TXR_FLAGS_VLAN_TAG_LOC_L2TAG2; + } else if (insertion_support->inner) { + if (insertion_support->inner & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1) + tx_ring->flags |= + IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1; + else if (insertion_support->inner & + VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2) + tx_ring->flags |= + IAVF_TXR_FLAGS_VLAN_TAG_LOC_L2TAG2; + } + } + } +} + +/** * iavf_alloc_queues - Allocate memory for all rings * @adapter: board private structure to initialize * @@ -1212,6 +1356,8 @@ static int iavf_alloc_queues(struct iavf_adapter *adapter) adapter->num_active_queues = num_active_queues; + iavf_set_queue_vlan_tag_loc(adapter); + return 0; err_out: @@ -1584,6 +1730,8 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter) { if (adapter->aq_required & IAVF_FLAG_AQ_GET_CONFIG) return iavf_send_vf_config_msg(adapter); + if (adapter->aq_required & IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS) + return iavf_send_vf_offload_vlan_v2_msg(adapter); if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_QUEUES) { iavf_disable_queues(adapter); return 0; @@ -1717,6 +1865,39 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter) iavf_del_adv_rss_cfg(adapter); return 0; } + if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING) { + iavf_disable_vlan_stripping_v2(adapter, ETH_P_8021Q); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING) { + iavf_disable_vlan_stripping_v2(adapter, ETH_P_8021AD); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING) { + iavf_enable_vlan_stripping_v2(adapter, ETH_P_8021Q); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING) { + iavf_enable_vlan_stripping_v2(adapter, ETH_P_8021AD); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION) { + iavf_disable_vlan_insertion_v2(adapter, ETH_P_8021Q); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION) { + iavf_disable_vlan_insertion_v2(adapter, ETH_P_8021AD); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION) { + iavf_enable_vlan_insertion_v2(adapter, ETH_P_8021Q); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION) { + iavf_enable_vlan_insertion_v2(adapter, ETH_P_8021AD); + return 0; + } + if (adapter->aq_required & IAVF_FLAG_AQ_REQUEST_STATS) { iavf_request_stats(adapter); return 0; @@ -1726,6 +1907,91 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter) } /** + * iavf_set_vlan_offload_features - set VLAN offload configuration + * @adapter: board private structure + * @prev_features: previous features used for comparison + * @features: updated features used for configuration + * + * Set the aq_required bit(s) based on the requested features passed in to + * configure VLAN stripping and/or VLAN insertion if supported. Also, schedule + * the watchdog if any changes are requested to expedite the request via + * virtchnl. + **/ +void +iavf_set_vlan_offload_features(struct iavf_adapter *adapter, + netdev_features_t prev_features, + netdev_features_t features) +{ + bool enable_stripping = true, enable_insertion = true; + u16 vlan_ethertype = 0; + u64 aq_required = 0; + + /* keep cases separate because one ethertype for offloads can be + * disabled at the same time as another is disabled, so check for an + * enabled ethertype first, then check for disabled. Default to + * ETH_P_8021Q so an ethertype is specified if disabling insertion and + * stripping. + */ + if (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX)) + vlan_ethertype = ETH_P_8021AD; + else if (features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) + vlan_ethertype = ETH_P_8021Q; + else if (prev_features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX)) + vlan_ethertype = ETH_P_8021AD; + else if (prev_features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) + vlan_ethertype = ETH_P_8021Q; + else + vlan_ethertype = ETH_P_8021Q; + + if (!(features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_CTAG_RX))) + enable_stripping = false; + if (!(features & (NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_CTAG_TX))) + enable_insertion = false; + + if (VLAN_ALLOWED(adapter)) { + /* VIRTCHNL_VF_OFFLOAD_VLAN only has support for toggling VLAN + * stripping via virtchnl. VLAN insertion can be toggled on the + * netdev, but it doesn't require a virtchnl message + */ + if (enable_stripping) + aq_required |= IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING; + else + aq_required |= IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING; + + } else if (VLAN_V2_ALLOWED(adapter)) { + switch (vlan_ethertype) { + case ETH_P_8021Q: + if (enable_stripping) + aq_required |= IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING; + else + aq_required |= IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING; + + if (enable_insertion) + aq_required |= IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION; + else + aq_required |= IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION; + break; + case ETH_P_8021AD: + if (enable_stripping) + aq_required |= IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING; + else + aq_required |= IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING; + + if (enable_insertion) + aq_required |= IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION; + else + aq_required |= IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION; + break; + } + } + + if (aq_required) { + adapter->aq_required |= aq_required; + mod_delayed_work(iavf_wq, &adapter->watchdog_task, 0); + } +} + +/** * iavf_startup - first step of driver startup * @adapter: board private structure * @@ -1827,6 +2093,59 @@ err: } /** + * iavf_parse_vf_resource_msg - parse response from VIRTCHNL_OP_GET_VF_RESOURCES + * @adapter: board private structure + */ +int iavf_parse_vf_resource_msg(struct iavf_adapter *adapter) +{ + int i, num_req_queues = adapter->num_req_queues; + struct iavf_vsi *vsi = &adapter->vsi; + + for (i = 0; i < adapter->vf_res->num_vsis; i++) { + if (adapter->vf_res->vsi_res[i].vsi_type == VIRTCHNL_VSI_SRIOV) + adapter->vsi_res = &adapter->vf_res->vsi_res[i]; + } + if (!adapter->vsi_res) { + dev_err(&adapter->pdev->dev, "No LAN VSI found\n"); + return -ENODEV; + } + + if (num_req_queues && + num_req_queues > adapter->vsi_res->num_queue_pairs) { + /* Problem. The PF gave us fewer queues than what we had + * negotiated in our request. Need a reset to see if we can't + * get back to a working state. + */ + dev_err(&adapter->pdev->dev, + "Requested %d queues, but PF only gave us %d.\n", + num_req_queues, + adapter->vsi_res->num_queue_pairs); + adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED; + adapter->num_req_queues = adapter->vsi_res->num_queue_pairs; + iavf_schedule_reset(adapter); + + return -EAGAIN; + } + adapter->num_req_queues = 0; + adapter->vsi.id = adapter->vsi_res->vsi_id; + + adapter->vsi.back = adapter; + adapter->vsi.base_vector = 1; + adapter->vsi.work_limit = IAVF_DEFAULT_IRQ_WORK; + vsi->netdev = adapter->netdev; + vsi->qs_handle = adapter->vsi_res->qset_handle; + if (adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) { + adapter->rss_key_size = adapter->vf_res->rss_key_size; + adapter->rss_lut_size = adapter->vf_res->rss_lut_size; + } else { + adapter->rss_key_size = IAVF_HKEY_ARRAY_SIZE; + adapter->rss_lut_size = IAVF_HLUT_ARRAY_SIZE; + } + + return 0; +} + +/** * iavf_init_get_resources - third step of driver startup * @adapter: board private structure * @@ -1837,7 +2156,6 @@ err: **/ static void iavf_init_get_resources(struct iavf_adapter *adapter) { - struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; struct iavf_hw *hw = &adapter->hw; int err; @@ -1855,7 +2173,7 @@ static void iavf_init_get_resources(struct iavf_adapter *adapter) err = iavf_get_vf_config(adapter); if (err == IAVF_ERR_ADMIN_QUEUE_NO_WORK) { err = iavf_send_vf_config_msg(adapter); - goto err; + goto err_alloc; } else if (err == IAVF_ERR_PARAM) { /* We only get ERR_PARAM if the device is in a very bad * state or if we've been disabled for previous bad @@ -1870,9 +2188,83 @@ static void iavf_init_get_resources(struct iavf_adapter *adapter) goto err_alloc; } - err = iavf_process_config(adapter); + err = iavf_parse_vf_resource_msg(adapter); if (err) goto err_alloc; + + err = iavf_send_vf_offload_vlan_v2_msg(adapter); + if (err == -EOPNOTSUPP) { + /* underlying PF doesn't support VIRTCHNL_VF_OFFLOAD_VLAN_V2, so + * go directly to finishing initialization + */ + iavf_change_state(adapter, __IAVF_INIT_CONFIG_ADAPTER); + return; + } else if (err) { + dev_err(&pdev->dev, "Unable to send offload vlan v2 request (%d)\n", + err); + goto err_alloc; + } + + /* underlying PF supports VIRTCHNL_VF_OFFLOAD_VLAN_V2, so update the + * state accordingly + */ + iavf_change_state(adapter, __IAVF_INIT_GET_OFFLOAD_VLAN_V2_CAPS); + return; + +err_alloc: + kfree(adapter->vf_res); + adapter->vf_res = NULL; +err: + iavf_change_state(adapter, __IAVF_INIT_FAILED); +} + +/** + * iavf_init_get_offload_vlan_v2_caps - part of driver startup + * @adapter: board private structure + * + * Function processes __IAVF_INIT_GET_OFFLOAD_VLAN_V2_CAPS driver state if the + * VF negotiates VIRTCHNL_VF_OFFLOAD_VLAN_V2. If VIRTCHNL_VF_OFFLOAD_VLAN_V2 is + * not negotiated, then this state will never be entered. + **/ +static void iavf_init_get_offload_vlan_v2_caps(struct iavf_adapter *adapter) +{ + int ret; + + WARN_ON(adapter->state != __IAVF_INIT_GET_OFFLOAD_VLAN_V2_CAPS); + + memset(&adapter->vlan_v2_caps, 0, sizeof(adapter->vlan_v2_caps)); + + ret = iavf_get_vf_vlan_v2_caps(adapter); + if (ret) { + if (ret == IAVF_ERR_ADMIN_QUEUE_NO_WORK) + iavf_send_vf_offload_vlan_v2_msg(adapter); + goto err; + } + + iavf_change_state(adapter, __IAVF_INIT_CONFIG_ADAPTER); + return; +err: + iavf_change_state(adapter, __IAVF_INIT_FAILED); +} + +/** + * iavf_init_config_adapter - last part of driver startup + * @adapter: board private structure + * + * After all the supported capabilities are negotiated, then the + * __IAVF_INIT_CONFIG_ADAPTER state will finish driver initialization. + */ +static void iavf_init_config_adapter(struct iavf_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + int err; + + WARN_ON(adapter->state != __IAVF_INIT_CONFIG_ADAPTER); + + if (iavf_process_config(adapter)) + goto err; + adapter->current_op = VIRTCHNL_OP_UNKNOWN; adapter->flags |= IAVF_FLAG_RX_CSUM_ENABLED; @@ -1955,6 +2347,10 @@ static void iavf_init_get_resources(struct iavf_adapter *adapter) else iavf_init_rss(adapter); + if (VLAN_V2_ALLOWED(adapter)) + /* request initial VLAN offload settings */ + iavf_set_vlan_offload_features(adapter, 0, netdev->features); + return; err_mem: iavf_free_rss(adapter); @@ -1962,9 +2358,6 @@ err_register: iavf_free_misc_irq(adapter); err_sw_init: iavf_reset_interrupt_capability(adapter); -err_alloc: - kfree(adapter->vf_res); - adapter->vf_res = NULL; err: iavf_change_state(adapter, __IAVF_INIT_FAILED); } @@ -2013,6 +2406,18 @@ static void iavf_watchdog_task(struct work_struct *work) queue_delayed_work(iavf_wq, &adapter->watchdog_task, msecs_to_jiffies(1)); return; + case __IAVF_INIT_GET_OFFLOAD_VLAN_V2_CAPS: + iavf_init_get_offload_vlan_v2_caps(adapter); + mutex_unlock(&adapter->crit_lock); + queue_delayed_work(iavf_wq, &adapter->watchdog_task, + msecs_to_jiffies(1)); + return; + case __IAVF_INIT_CONFIG_ADAPTER: + iavf_init_config_adapter(adapter); + mutex_unlock(&adapter->crit_lock); + queue_delayed_work(iavf_wq, &adapter->watchdog_task, + msecs_to_jiffies(1)); + return; case __IAVF_INIT_FAILED: if (++adapter->aq_wait_count > IAVF_AQ_MAX_ERR) { dev_err(&adapter->pdev->dev, @@ -2046,6 +2451,7 @@ static void iavf_watchdog_task(struct work_struct *work) } adapter->aq_required = 0; adapter->current_op = VIRTCHNL_OP_UNKNOWN; + mutex_unlock(&adapter->crit_lock); queue_delayed_work(iavf_wq, &adapter->watchdog_task, msecs_to_jiffies(10)); @@ -2065,10 +2471,13 @@ static void iavf_watchdog_task(struct work_struct *work) iavf_send_api_ver(adapter); } } else { + int ret = iavf_process_aq_command(adapter); + /* An error will be returned if no commands were * processed; use this opportunity to update stats + * if the error isn't -ENOTSUPP */ - if (iavf_process_aq_command(adapter) && + if (ret && ret != -EOPNOTSUPP && adapter->state == __IAVF_RUNNING) iavf_request_stats(adapter); } @@ -2076,16 +2485,14 @@ static void iavf_watchdog_task(struct work_struct *work) iavf_detect_recover_hung(&adapter->vsi); break; case __IAVF_REMOVE: - mutex_unlock(&adapter->crit_lock); - return; default: + mutex_unlock(&adapter->crit_lock); return; } /* check for hw reset */ reg_val = rd32(hw, IAVF_VF_ARQLEN1) & IAVF_VF_ARQLEN1_ARQENABLE_MASK; if (!reg_val) { - iavf_change_state(adapter, __IAVF_RESETTING); adapter->flags |= IAVF_FLAG_RESET_PENDING; adapter->aq_required = 0; adapter->current_op = VIRTCHNL_OP_UNKNOWN; @@ -2309,6 +2716,13 @@ continue_reset: } adapter->aq_required |= IAVF_FLAG_AQ_GET_CONFIG; + /* always set since VIRTCHNL_OP_GET_VF_RESOURCES has not been + * sent/received yet, so VLAN_V2_ALLOWED() cannot is not reliable here, + * however the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS won't be sent until + * VIRTCHNL_OP_GET_VF_RESOURCES and VIRTCHNL_VF_OFFLOAD_VLAN_V2 have + * been successfully sent and negotiated + */ + adapter->aq_required |= IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS; adapter->aq_required |= IAVF_FLAG_AQ_MAP_VECTORS; spin_lock_bh(&adapter->mac_vlan_list_lock); @@ -3442,6 +3856,11 @@ static int iavf_change_mtu(struct net_device *netdev, int new_mtu) return 0; } +#define NETIF_VLAN_OFFLOAD_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_HW_VLAN_CTAG_TX | \ + NETIF_F_HW_VLAN_STAG_RX | \ + NETIF_F_HW_VLAN_STAG_TX) + /** * iavf_set_features - set the netdev feature flags * @netdev: ptr to the netdev being adjusted @@ -3453,25 +3872,11 @@ static int iavf_set_features(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); - /* Don't allow enabling VLAN features when adapter is not capable - * of VLAN offload/filtering - */ - if (!VLAN_ALLOWED(adapter)) { - netdev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_FILTER); - if (features & (NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_FILTER)) - return -EINVAL; - } else if ((netdev->features ^ features) & NETIF_F_HW_VLAN_CTAG_RX) { - if (features & NETIF_F_HW_VLAN_CTAG_RX) - adapter->aq_required |= - IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING; - else - adapter->aq_required |= - IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING; - } + /* trigger update on any VLAN feature change */ + if ((netdev->features & NETIF_VLAN_OFFLOAD_FEATURES) ^ + (features & NETIF_VLAN_OFFLOAD_FEATURES)) + iavf_set_vlan_offload_features(adapter, netdev->features, + features); return 0; } @@ -3535,6 +3940,228 @@ out_err: } /** + * iavf_get_netdev_vlan_hw_features - get NETDEV VLAN features that can toggle on/off + * @adapter: board private structure + * + * Depending on whether VIRTHCNL_VF_OFFLOAD_VLAN or VIRTCHNL_VF_OFFLOAD_VLAN_V2 + * were negotiated determine the VLAN features that can be toggled on and off. + **/ +static netdev_features_t +iavf_get_netdev_vlan_hw_features(struct iavf_adapter *adapter) +{ + netdev_features_t hw_features = 0; + + if (!adapter->vf_res || !adapter->vf_res->vf_cap_flags) + return hw_features; + + /* Enable VLAN features if supported */ + if (VLAN_ALLOWED(adapter)) { + hw_features |= (NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX); + } else if (VLAN_V2_ALLOWED(adapter)) { + struct virtchnl_vlan_caps *vlan_v2_caps = + &adapter->vlan_v2_caps; + struct virtchnl_vlan_supported_caps *stripping_support = + &vlan_v2_caps->offloads.stripping_support; + struct virtchnl_vlan_supported_caps *insertion_support = + &vlan_v2_caps->offloads.insertion_support; + + if (stripping_support->outer != VIRTCHNL_VLAN_UNSUPPORTED && + stripping_support->outer & VIRTCHNL_VLAN_TOGGLE) { + if (stripping_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_8100) + hw_features |= NETIF_F_HW_VLAN_CTAG_RX; + if (stripping_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_88A8) + hw_features |= NETIF_F_HW_VLAN_STAG_RX; + } else if (stripping_support->inner != + VIRTCHNL_VLAN_UNSUPPORTED && + stripping_support->inner & VIRTCHNL_VLAN_TOGGLE) { + if (stripping_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_8100) + hw_features |= NETIF_F_HW_VLAN_CTAG_RX; + } + + if (insertion_support->outer != VIRTCHNL_VLAN_UNSUPPORTED && + insertion_support->outer & VIRTCHNL_VLAN_TOGGLE) { + if (insertion_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_8100) + hw_features |= NETIF_F_HW_VLAN_CTAG_TX; + if (insertion_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_88A8) + hw_features |= NETIF_F_HW_VLAN_STAG_TX; + } else if (insertion_support->inner && + insertion_support->inner & VIRTCHNL_VLAN_TOGGLE) { + if (insertion_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_8100) + hw_features |= NETIF_F_HW_VLAN_CTAG_TX; + } + } + + return hw_features; +} + +/** + * iavf_get_netdev_vlan_features - get the enabled NETDEV VLAN fetures + * @adapter: board private structure + * + * Depending on whether VIRTHCNL_VF_OFFLOAD_VLAN or VIRTCHNL_VF_OFFLOAD_VLAN_V2 + * were negotiated determine the VLAN features that are enabled by default. + **/ +static netdev_features_t +iavf_get_netdev_vlan_features(struct iavf_adapter *adapter) +{ + netdev_features_t features = 0; + + if (!adapter->vf_res || !adapter->vf_res->vf_cap_flags) + return features; + + if (VLAN_ALLOWED(adapter)) { + features |= NETIF_F_HW_VLAN_CTAG_FILTER | + NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX; + } else if (VLAN_V2_ALLOWED(adapter)) { + struct virtchnl_vlan_caps *vlan_v2_caps = + &adapter->vlan_v2_caps; + struct virtchnl_vlan_supported_caps *filtering_support = + &vlan_v2_caps->filtering.filtering_support; + struct virtchnl_vlan_supported_caps *stripping_support = + &vlan_v2_caps->offloads.stripping_support; + struct virtchnl_vlan_supported_caps *insertion_support = + &vlan_v2_caps->offloads.insertion_support; + u32 ethertype_init; + + /* give priority to outer stripping and don't support both outer + * and inner stripping + */ + ethertype_init = vlan_v2_caps->offloads.ethertype_init; + if (stripping_support->outer != VIRTCHNL_VLAN_UNSUPPORTED) { + if (stripping_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_RX; + else if (stripping_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_88A8 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_88A8) + features |= NETIF_F_HW_VLAN_STAG_RX; + } else if (stripping_support->inner != + VIRTCHNL_VLAN_UNSUPPORTED) { + if (stripping_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_RX; + } + + /* give priority to outer insertion and don't support both outer + * and inner insertion + */ + if (insertion_support->outer != VIRTCHNL_VLAN_UNSUPPORTED) { + if (insertion_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_TX; + else if (insertion_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_88A8 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_88A8) + features |= NETIF_F_HW_VLAN_STAG_TX; + } else if (insertion_support->inner != + VIRTCHNL_VLAN_UNSUPPORTED) { + if (insertion_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_TX; + } + + /* give priority to outer filtering and don't bother if both + * outer and inner filtering are enabled + */ + ethertype_init = vlan_v2_caps->filtering.ethertype_init; + if (filtering_support->outer != VIRTCHNL_VLAN_UNSUPPORTED) { + if (filtering_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_FILTER; + if (filtering_support->outer & + VIRTCHNL_VLAN_ETHERTYPE_88A8 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_88A8) + features |= NETIF_F_HW_VLAN_STAG_FILTER; + } else if (filtering_support->inner != + VIRTCHNL_VLAN_UNSUPPORTED) { + if (filtering_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_8100 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_8100) + features |= NETIF_F_HW_VLAN_CTAG_FILTER; + if (filtering_support->inner & + VIRTCHNL_VLAN_ETHERTYPE_88A8 && + ethertype_init & VIRTCHNL_VLAN_ETHERTYPE_88A8) + features |= NETIF_F_HW_VLAN_STAG_FILTER; + } + } + + return features; +} + +#define IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested, allowed, feature_bit) \ + (!(((requested) & (feature_bit)) && \ + !((allowed) & (feature_bit)))) + +/** + * iavf_fix_netdev_vlan_features - fix NETDEV VLAN features based on support + * @adapter: board private structure + * @requested_features: stack requested NETDEV features + **/ +static netdev_features_t +iavf_fix_netdev_vlan_features(struct iavf_adapter *adapter, + netdev_features_t requested_features) +{ + netdev_features_t allowed_features; + + allowed_features = iavf_get_netdev_vlan_hw_features(adapter) | + iavf_get_netdev_vlan_features(adapter); + + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_CTAG_TX)) + requested_features &= ~NETIF_F_HW_VLAN_CTAG_TX; + + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_CTAG_RX)) + requested_features &= ~NETIF_F_HW_VLAN_CTAG_RX; + + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_STAG_TX)) + requested_features &= ~NETIF_F_HW_VLAN_STAG_TX; + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_STAG_RX)) + requested_features &= ~NETIF_F_HW_VLAN_STAG_RX; + + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_CTAG_FILTER)) + requested_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; + + if (!IAVF_NETDEV_VLAN_FEATURE_ALLOWED(requested_features, + allowed_features, + NETIF_F_HW_VLAN_STAG_FILTER)) + requested_features &= ~NETIF_F_HW_VLAN_STAG_FILTER; + + if ((requested_features & + (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) && + (requested_features & + (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX)) && + adapter->vlan_v2_caps.offloads.ethertype_match == + VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION) { + netdev_warn(adapter->netdev, "cannot support CTAG and STAG VLAN stripping and/or insertion simultaneously since CTAG and STAG offloads are mutually exclusive, clearing STAG offload settings\n"); + requested_features &= ~(NETIF_F_HW_VLAN_STAG_RX | + NETIF_F_HW_VLAN_STAG_TX); + } + + return requested_features; +} + +/** * iavf_fix_features - fix up the netdev feature bits * @netdev: our net device * @features: desired feature bits @@ -3546,13 +4173,7 @@ static netdev_features_t iavf_fix_features(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); - if (adapter->vf_res && - !(adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)) - features &= ~(NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_VLAN_CTAG_FILTER); - - return features; + return iavf_fix_netdev_vlan_features(adapter, features); } static const struct net_device_ops iavf_netdev_ops = { @@ -3604,39 +4225,11 @@ static int iavf_check_reset_complete(struct iavf_hw *hw) int iavf_process_config(struct iavf_adapter *adapter) { struct virtchnl_vf_resource *vfres = adapter->vf_res; - int i, num_req_queues = adapter->num_req_queues; + netdev_features_t hw_vlan_features, vlan_features; struct net_device *netdev = adapter->netdev; - struct iavf_vsi *vsi = &adapter->vsi; netdev_features_t hw_enc_features; netdev_features_t hw_features; - /* got VF config message back from PF, now we can parse it */ - for (i = 0; i < vfres->num_vsis; i++) { - if (vfres->vsi_res[i].vsi_type == VIRTCHNL_VSI_SRIOV) - adapter->vsi_res = &vfres->vsi_res[i]; - } - if (!adapter->vsi_res) { - dev_err(&adapter->pdev->dev, "No LAN VSI found\n"); - return -ENODEV; - } - - if (num_req_queues && - num_req_queues > adapter->vsi_res->num_queue_pairs) { - /* Problem. The PF gave us fewer queues than what we had - * negotiated in our request. Need a reset to see if we can't - * get back to a working state. - */ - dev_err(&adapter->pdev->dev, - "Requested %d queues, but PF only gave us %d.\n", - num_req_queues, - adapter->vsi_res->num_queue_pairs); - adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED; - adapter->num_req_queues = adapter->vsi_res->num_queue_pairs; - iavf_schedule_reset(adapter); - return -ENODEV; - } - adapter->num_req_queues = 0; - hw_enc_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | @@ -3680,19 +4273,19 @@ int iavf_process_config(struct iavf_adapter *adapter) */ hw_features = hw_enc_features; - /* Enable VLAN features if supported */ - if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN) - hw_features |= (NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_RX); + /* get HW VLAN features that can be toggled */ + hw_vlan_features = iavf_get_netdev_vlan_hw_features(adapter); + /* Enable cloud filter if ADQ is supported */ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) hw_features |= NETIF_F_HW_TC; if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_USO) hw_features |= NETIF_F_GSO_UDP_L4; - netdev->hw_features |= hw_features; + netdev->hw_features |= hw_features | hw_vlan_features; + vlan_features = iavf_get_netdev_vlan_features(adapter); - netdev->features |= hw_features; + netdev->features |= hw_features | vlan_features; if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN) netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; @@ -3717,21 +4310,6 @@ int iavf_process_config(struct iavf_adapter *adapter) netdev->features &= ~NETIF_F_GSO; } - adapter->vsi.id = adapter->vsi_res->vsi_id; - - adapter->vsi.back = adapter; - adapter->vsi.base_vector = 1; - adapter->vsi.work_limit = IAVF_DEFAULT_IRQ_WORK; - vsi->netdev = adapter->netdev; - vsi->qs_handle = adapter->vsi_res->qset_handle; - if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) { - adapter->rss_key_size = vfres->rss_key_size; - adapter->rss_lut_size = vfres->rss_lut_size; - } else { - adapter->rss_key_size = IAVF_HKEY_ARRAY_SIZE; - adapter->rss_lut_size = IAVF_HLUT_ARRAY_SIZE; - } - return 0; } |