| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2018, Intel Corporation. */ |
| |
| /* Intel(R) Ethernet Connection E800 Series Linux Driver */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include "ice.h" |
| #include "ice_base.h" |
| #include "ice_lib.h" |
| #include "ice_dcb_lib.h" |
| #include "ice_dcb_nl.h" |
| |
| #define DRV_VERSION_MAJOR 0 |
| #define DRV_VERSION_MINOR 8 |
| #define DRV_VERSION_BUILD 2 |
| |
| #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \ |
| __stringify(DRV_VERSION_MINOR) "." \ |
| __stringify(DRV_VERSION_BUILD) "-k" |
| #define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver" |
| const char ice_drv_ver[] = DRV_VERSION; |
| static const char ice_driver_string[] = DRV_SUMMARY; |
| static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation."; |
| |
| /* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */ |
| #define ICE_DDP_PKG_PATH "intel/ice/ddp/" |
| #define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg" |
| |
| MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
| MODULE_DESCRIPTION(DRV_SUMMARY); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_VERSION(DRV_VERSION); |
| MODULE_FIRMWARE(ICE_DDP_PKG_FILE); |
| |
| static int debug = -1; |
| module_param(debug, int, 0644); |
| #ifndef CONFIG_DYNAMIC_DEBUG |
| MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)"); |
| #else |
| MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)"); |
| #endif /* !CONFIG_DYNAMIC_DEBUG */ |
| |
| static struct workqueue_struct *ice_wq; |
| static const struct net_device_ops ice_netdev_safe_mode_ops; |
| static const struct net_device_ops ice_netdev_ops; |
| static int ice_vsi_open(struct ice_vsi *vsi); |
| |
| static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type); |
| |
| static void ice_vsi_release_all(struct ice_pf *pf); |
| |
| /** |
| * ice_get_tx_pending - returns number of Tx descriptors not processed |
| * @ring: the ring of descriptors |
| */ |
| static u16 ice_get_tx_pending(struct ice_ring *ring) |
| { |
| u16 head, tail; |
| |
| head = ring->next_to_clean; |
| tail = ring->next_to_use; |
| |
| if (head != tail) |
| return (head < tail) ? |
| tail - head : (tail + ring->count - head); |
| return 0; |
| } |
| |
| /** |
| * ice_check_for_hang_subtask - check for and recover hung queues |
| * @pf: pointer to PF struct |
| */ |
| static void ice_check_for_hang_subtask(struct ice_pf *pf) |
| { |
| struct ice_vsi *vsi = NULL; |
| struct ice_hw *hw; |
| unsigned int i; |
| int packets; |
| u32 v; |
| |
| ice_for_each_vsi(pf, v) |
| if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) { |
| vsi = pf->vsi[v]; |
| break; |
| } |
| |
| if (!vsi || test_bit(__ICE_DOWN, vsi->state)) |
| return; |
| |
| if (!(vsi->netdev && netif_carrier_ok(vsi->netdev))) |
| return; |
| |
| hw = &vsi->back->hw; |
| |
| for (i = 0; i < vsi->num_txq; i++) { |
| struct ice_ring *tx_ring = vsi->tx_rings[i]; |
| |
| if (tx_ring && tx_ring->desc) { |
| /* If packet counter has not changed the queue is |
| * likely stalled, so force an interrupt for this |
| * queue. |
| * |
| * prev_pkt would be negative if there was no |
| * pending work. |
| */ |
| packets = tx_ring->stats.pkts & INT_MAX; |
| if (tx_ring->tx_stats.prev_pkt == packets) { |
| /* Trigger sw interrupt to revive the queue */ |
| ice_trigger_sw_intr(hw, tx_ring->q_vector); |
| continue; |
| } |
| |
| /* Memory barrier between read of packet count and call |
| * to ice_get_tx_pending() |
| */ |
| smp_rmb(); |
| tx_ring->tx_stats.prev_pkt = |
| ice_get_tx_pending(tx_ring) ? packets : -1; |
| } |
| } |
| } |
| |
| /** |
| * ice_init_mac_fltr - Set initial MAC filters |
| * @pf: board private structure |
| * |
| * Set initial set of MAC filters for PF VSI; configure filters for permanent |
| * address and broadcast address. If an error is encountered, netdevice will be |
| * unregistered. |
| */ |
| static int ice_init_mac_fltr(struct ice_pf *pf) |
| { |
| enum ice_status status; |
| u8 broadcast[ETH_ALEN]; |
| struct ice_vsi *vsi; |
| |
| vsi = ice_get_main_vsi(pf); |
| if (!vsi) |
| return -EINVAL; |
| |
| /* To add a MAC filter, first add the MAC to a list and then |
| * pass the list to ice_add_mac. |
| */ |
| |
| /* Add a unicast MAC filter so the VSI can get its packets */ |
| status = ice_vsi_cfg_mac_fltr(vsi, vsi->port_info->mac.perm_addr, true); |
| if (status) |
| goto unregister; |
| |
| /* VSI needs to receive broadcast traffic, so add the broadcast |
| * MAC address to the list as well. |
| */ |
| eth_broadcast_addr(broadcast); |
| status = ice_vsi_cfg_mac_fltr(vsi, broadcast, true); |
| if (status) |
| goto unregister; |
| |
| return 0; |
| unregister: |
| /* We aren't useful with no MAC filters, so unregister if we |
| * had an error |
| */ |
| if (status && vsi->netdev->reg_state == NETREG_REGISTERED) { |
| dev_err(ice_pf_to_dev(pf), |
| "Could not add MAC filters error %d. Unregistering device\n", |
| status); |
| unregister_netdev(vsi->netdev); |
| free_netdev(vsi->netdev); |
| vsi->netdev = NULL; |
| } |
| |
| return -EIO; |
| } |
| |
| /** |
| * ice_add_mac_to_sync_list - creates list of MAC addresses to be synced |
| * @netdev: the net device on which the sync is happening |
| * @addr: MAC address to sync |
| * |
| * This is a callback function which is called by the in kernel device sync |
| * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only |
| * populates the tmp_sync_list, which is later used by ice_add_mac to add the |
| * MAC filters from the hardware. |
| */ |
| static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| |
| if (ice_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced |
| * @netdev: the net device on which the unsync is happening |
| * @addr: MAC address to unsync |
| * |
| * This is a callback function which is called by the in kernel device unsync |
| * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only |
| * populates the tmp_unsync_list, which is later used by ice_remove_mac to |
| * delete the MAC filters from the hardware. |
| */ |
| static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| |
| if (ice_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_fltr_changed - check if filter state changed |
| * @vsi: VSI to be checked |
| * |
| * returns true if filter state has changed, false otherwise. |
| */ |
| static bool ice_vsi_fltr_changed(struct ice_vsi *vsi) |
| { |
| return test_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags) || |
| test_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags) || |
| test_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags); |
| } |
| |
| /** |
| * ice_cfg_promisc - Enable or disable promiscuous mode for a given PF |
| * @vsi: the VSI being configured |
| * @promisc_m: mask of promiscuous config bits |
| * @set_promisc: enable or disable promisc flag request |
| * |
| */ |
| static int ice_cfg_promisc(struct ice_vsi *vsi, u8 promisc_m, bool set_promisc) |
| { |
| struct ice_hw *hw = &vsi->back->hw; |
| enum ice_status status = 0; |
| |
| if (vsi->type != ICE_VSI_PF) |
| return 0; |
| |
| if (vsi->vlan_ena) { |
| status = ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_m, |
| set_promisc); |
| } else { |
| if (set_promisc) |
| status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m, |
| 0); |
| else |
| status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m, |
| 0); |
| } |
| |
| if (status) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_sync_fltr - Update the VSI filter list to the HW |
| * @vsi: ptr to the VSI |
| * |
| * Push any outstanding VSI filter changes through the AdminQ. |
| */ |
| static int ice_vsi_sync_fltr(struct ice_vsi *vsi) |
| { |
| struct device *dev = &vsi->back->pdev->dev; |
| struct net_device *netdev = vsi->netdev; |
| bool promisc_forced_on = false; |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| enum ice_status status = 0; |
| u32 changed_flags = 0; |
| u8 promisc_m; |
| int err = 0; |
| |
| if (!vsi->netdev) |
| return -EINVAL; |
| |
| while (test_and_set_bit(__ICE_CFG_BUSY, vsi->state)) |
| usleep_range(1000, 2000); |
| |
| changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags; |
| vsi->current_netdev_flags = vsi->netdev->flags; |
| |
| INIT_LIST_HEAD(&vsi->tmp_sync_list); |
| INIT_LIST_HEAD(&vsi->tmp_unsync_list); |
| |
| if (ice_vsi_fltr_changed(vsi)) { |
| clear_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags); |
| clear_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags); |
| clear_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags); |
| |
| /* grab the netdev's addr_list_lock */ |
| netif_addr_lock_bh(netdev); |
| __dev_uc_sync(netdev, ice_add_mac_to_sync_list, |
| ice_add_mac_to_unsync_list); |
| __dev_mc_sync(netdev, ice_add_mac_to_sync_list, |
| ice_add_mac_to_unsync_list); |
| /* our temp lists are populated. release lock */ |
| netif_addr_unlock_bh(netdev); |
| } |
| |
| /* Remove MAC addresses in the unsync list */ |
| status = ice_remove_mac(hw, &vsi->tmp_unsync_list); |
| ice_free_fltr_list(dev, &vsi->tmp_unsync_list); |
| if (status) { |
| netdev_err(netdev, "Failed to delete MAC filters\n"); |
| /* if we failed because of alloc failures, just bail */ |
| if (status == ICE_ERR_NO_MEMORY) { |
| err = -ENOMEM; |
| goto out; |
| } |
| } |
| |
| /* Add MAC addresses in the sync list */ |
| status = ice_add_mac(hw, &vsi->tmp_sync_list); |
| ice_free_fltr_list(dev, &vsi->tmp_sync_list); |
| /* If filter is added successfully or already exists, do not go into |
| * 'if' condition and report it as error. Instead continue processing |
| * rest of the function. |
| */ |
| if (status && status != ICE_ERR_ALREADY_EXISTS) { |
| netdev_err(netdev, "Failed to add MAC filters\n"); |
| /* If there is no more space for new umac filters, VSI |
| * should go into promiscuous mode. There should be some |
| * space reserved for promiscuous filters. |
| */ |
| if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC && |
| !test_and_set_bit(__ICE_FLTR_OVERFLOW_PROMISC, |
| vsi->state)) { |
| promisc_forced_on = true; |
| netdev_warn(netdev, |
| "Reached MAC filter limit, forcing promisc mode on VSI %d\n", |
| vsi->vsi_num); |
| } else { |
| err = -EIO; |
| goto out; |
| } |
| } |
| /* check for changes in promiscuous modes */ |
| if (changed_flags & IFF_ALLMULTI) { |
| if (vsi->current_netdev_flags & IFF_ALLMULTI) { |
| if (vsi->vlan_ena) |
| promisc_m = ICE_MCAST_VLAN_PROMISC_BITS; |
| else |
| promisc_m = ICE_MCAST_PROMISC_BITS; |
| |
| err = ice_cfg_promisc(vsi, promisc_m, true); |
| if (err) { |
| netdev_err(netdev, "Error setting Multicast promiscuous mode on VSI %i\n", |
| vsi->vsi_num); |
| vsi->current_netdev_flags &= ~IFF_ALLMULTI; |
| goto out_promisc; |
| } |
| } else if (!(vsi->current_netdev_flags & IFF_ALLMULTI)) { |
| if (vsi->vlan_ena) |
| promisc_m = ICE_MCAST_VLAN_PROMISC_BITS; |
| else |
| promisc_m = ICE_MCAST_PROMISC_BITS; |
| |
| err = ice_cfg_promisc(vsi, promisc_m, false); |
| if (err) { |
| netdev_err(netdev, "Error clearing Multicast promiscuous mode on VSI %i\n", |
| vsi->vsi_num); |
| vsi->current_netdev_flags |= IFF_ALLMULTI; |
| goto out_promisc; |
| } |
| } |
| } |
| |
| if (((changed_flags & IFF_PROMISC) || promisc_forced_on) || |
| test_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags)) { |
| clear_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags); |
| if (vsi->current_netdev_flags & IFF_PROMISC) { |
| /* Apply Rx filter rule to get traffic from wire */ |
| if (!ice_is_dflt_vsi_in_use(pf->first_sw)) { |
| err = ice_set_dflt_vsi(pf->first_sw, vsi); |
| if (err && err != -EEXIST) { |
| netdev_err(netdev, |
| "Error %d setting default VSI %i Rx rule\n", |
| err, vsi->vsi_num); |
| vsi->current_netdev_flags &= |
| ~IFF_PROMISC; |
| goto out_promisc; |
| } |
| } |
| } else { |
| /* Clear Rx filter to remove traffic from wire */ |
| if (ice_is_vsi_dflt_vsi(pf->first_sw, vsi)) { |
| err = ice_clear_dflt_vsi(pf->first_sw); |
| if (err) { |
| netdev_err(netdev, |
| "Error %d clearing default VSI %i Rx rule\n", |
| err, vsi->vsi_num); |
| vsi->current_netdev_flags |= |
| IFF_PROMISC; |
| goto out_promisc; |
| } |
| } |
| } |
| } |
| goto exit; |
| |
| out_promisc: |
| set_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags); |
| goto exit; |
| out: |
| /* if something went wrong then set the changed flag so we try again */ |
| set_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags); |
| set_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags); |
| exit: |
| clear_bit(__ICE_CFG_BUSY, vsi->state); |
| return err; |
| } |
| |
| /** |
| * ice_sync_fltr_subtask - Sync the VSI filter list with HW |
| * @pf: board private structure |
| */ |
| static void ice_sync_fltr_subtask(struct ice_pf *pf) |
| { |
| int v; |
| |
| if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags))) |
| return; |
| |
| clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags); |
| |
| ice_for_each_vsi(pf, v) |
| if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) && |
| ice_vsi_sync_fltr(pf->vsi[v])) { |
| /* come back and try again later */ |
| set_bit(ICE_FLAG_FLTR_SYNC, pf->flags); |
| break; |
| } |
| } |
| |
| /** |
| * ice_pf_dis_all_vsi - Pause all VSIs on a PF |
| * @pf: the PF |
| * @locked: is the rtnl_lock already held |
| */ |
| static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked) |
| { |
| int v; |
| |
| ice_for_each_vsi(pf, v) |
| if (pf->vsi[v]) |
| ice_dis_vsi(pf->vsi[v], locked); |
| } |
| |
| /** |
| * ice_prepare_for_reset - prep for the core to reset |
| * @pf: board private structure |
| * |
| * Inform or close all dependent features in prep for reset. |
| */ |
| static void |
| ice_prepare_for_reset(struct ice_pf *pf) |
| { |
| struct ice_hw *hw = &pf->hw; |
| int i; |
| |
| /* already prepared for reset */ |
| if (test_bit(__ICE_PREPARED_FOR_RESET, pf->state)) |
| return; |
| |
| /* Notify VFs of impending reset */ |
| if (ice_check_sq_alive(hw, &hw->mailboxq)) |
| ice_vc_notify_reset(pf); |
| |
| /* Disable VFs until reset is completed */ |
| ice_for_each_vf(pf, i) |
| ice_set_vf_state_qs_dis(&pf->vf[i]); |
| |
| /* clear SW filtering DB */ |
| ice_clear_hw_tbls(hw); |
| /* disable the VSIs and their queues that are not already DOWN */ |
| ice_pf_dis_all_vsi(pf, false); |
| |
| if (hw->port_info) |
| ice_sched_clear_port(hw->port_info); |
| |
| ice_shutdown_all_ctrlq(hw); |
| |
| set_bit(__ICE_PREPARED_FOR_RESET, pf->state); |
| } |
| |
| /** |
| * ice_do_reset - Initiate one of many types of resets |
| * @pf: board private structure |
| * @reset_type: reset type requested |
| * before this function was called. |
| */ |
| static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| |
| dev_dbg(dev, "reset_type 0x%x requested\n", reset_type); |
| WARN_ON(in_interrupt()); |
| |
| ice_prepare_for_reset(pf); |
| |
| /* trigger the reset */ |
| if (ice_reset(hw, reset_type)) { |
| dev_err(dev, "reset %d failed\n", reset_type); |
| set_bit(__ICE_RESET_FAILED, pf->state); |
| clear_bit(__ICE_RESET_OICR_RECV, pf->state); |
| clear_bit(__ICE_PREPARED_FOR_RESET, pf->state); |
| clear_bit(__ICE_PFR_REQ, pf->state); |
| clear_bit(__ICE_CORER_REQ, pf->state); |
| clear_bit(__ICE_GLOBR_REQ, pf->state); |
| return; |
| } |
| |
| /* PFR is a bit of a special case because it doesn't result in an OICR |
| * interrupt. So for PFR, rebuild after the reset and clear the reset- |
| * associated state bits. |
| */ |
| if (reset_type == ICE_RESET_PFR) { |
| pf->pfr_count++; |
| ice_rebuild(pf, reset_type); |
| clear_bit(__ICE_PREPARED_FOR_RESET, pf->state); |
| clear_bit(__ICE_PFR_REQ, pf->state); |
| ice_reset_all_vfs(pf, true); |
| } |
| } |
| |
| /** |
| * ice_reset_subtask - Set up for resetting the device and driver |
| * @pf: board private structure |
| */ |
| static void ice_reset_subtask(struct ice_pf *pf) |
| { |
| enum ice_reset_req reset_type = ICE_RESET_INVAL; |
| |
| /* When a CORER/GLOBR/EMPR is about to happen, the hardware triggers an |
| * OICR interrupt. The OICR handler (ice_misc_intr) determines what type |
| * of reset is pending and sets bits in pf->state indicating the reset |
| * type and __ICE_RESET_OICR_RECV. So, if the latter bit is set |
| * prepare for pending reset if not already (for PF software-initiated |
| * global resets the software should already be prepared for it as |
| * indicated by __ICE_PREPARED_FOR_RESET; for global resets initiated |
| * by firmware or software on other PFs, that bit is not set so prepare |
| * for the reset now), poll for reset done, rebuild and return. |
| */ |
| if (test_bit(__ICE_RESET_OICR_RECV, pf->state)) { |
| /* Perform the largest reset requested */ |
| if (test_and_clear_bit(__ICE_CORER_RECV, pf->state)) |
| reset_type = ICE_RESET_CORER; |
| if (test_and_clear_bit(__ICE_GLOBR_RECV, pf->state)) |
| reset_type = ICE_RESET_GLOBR; |
| if (test_and_clear_bit(__ICE_EMPR_RECV, pf->state)) |
| reset_type = ICE_RESET_EMPR; |
| /* return if no valid reset type requested */ |
| if (reset_type == ICE_RESET_INVAL) |
| return; |
| ice_prepare_for_reset(pf); |
| |
| /* make sure we are ready to rebuild */ |
| if (ice_check_reset(&pf->hw)) { |
| set_bit(__ICE_RESET_FAILED, pf->state); |
| } else { |
| /* done with reset. start rebuild */ |
| pf->hw.reset_ongoing = false; |
| ice_rebuild(pf, reset_type); |
| /* clear bit to resume normal operations, but |
| * ICE_NEEDS_RESTART bit is set in case rebuild failed |
| */ |
| clear_bit(__ICE_RESET_OICR_RECV, pf->state); |
| clear_bit(__ICE_PREPARED_FOR_RESET, pf->state); |
| clear_bit(__ICE_PFR_REQ, pf->state); |
| clear_bit(__ICE_CORER_REQ, pf->state); |
| clear_bit(__ICE_GLOBR_REQ, pf->state); |
| ice_reset_all_vfs(pf, true); |
| } |
| |
| return; |
| } |
| |
| /* No pending resets to finish processing. Check for new resets */ |
| if (test_bit(__ICE_PFR_REQ, pf->state)) |
| reset_type = ICE_RESET_PFR; |
| if (test_bit(__ICE_CORER_REQ, pf->state)) |
| reset_type = ICE_RESET_CORER; |
| if (test_bit(__ICE_GLOBR_REQ, pf->state)) |
| reset_type = ICE_RESET_GLOBR; |
| /* If no valid reset type requested just return */ |
| if (reset_type == ICE_RESET_INVAL) |
| return; |
| |
| /* reset if not already down or busy */ |
| if (!test_bit(__ICE_DOWN, pf->state) && |
| !test_bit(__ICE_CFG_BUSY, pf->state)) { |
| ice_do_reset(pf, reset_type); |
| } |
| } |
| |
| /** |
| * ice_print_topo_conflict - print topology conflict message |
| * @vsi: the VSI whose topology status is being checked |
| */ |
| static void ice_print_topo_conflict(struct ice_vsi *vsi) |
| { |
| switch (vsi->port_info->phy.link_info.topo_media_conflict) { |
| case ICE_AQ_LINK_TOPO_CONFLICT: |
| case ICE_AQ_LINK_MEDIA_CONFLICT: |
| case ICE_AQ_LINK_TOPO_UNREACH_PRT: |
| case ICE_AQ_LINK_TOPO_UNDRUTIL_PRT: |
| case ICE_AQ_LINK_TOPO_UNDRUTIL_MEDIA: |
| netdev_info(vsi->netdev, "Possible mis-configuration of the Ethernet port detected, please use the Intel(R) Ethernet Port Configuration Tool application to address the issue.\n"); |
| break; |
| case ICE_AQ_LINK_TOPO_UNSUPP_MEDIA: |
| netdev_info(vsi->netdev, "Rx/Tx is disabled on this device because an unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n"); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * ice_print_link_msg - print link up or down message |
| * @vsi: the VSI whose link status is being queried |
| * @isup: boolean for if the link is now up or down |
| */ |
| void ice_print_link_msg(struct ice_vsi *vsi, bool isup) |
| { |
| struct ice_aqc_get_phy_caps_data *caps; |
| enum ice_status status; |
| const char *fec_req; |
| const char *speed; |
| const char *fec; |
| const char *fc; |
| const char *an; |
| |
| if (!vsi) |
| return; |
| |
| if (vsi->current_isup == isup) |
| return; |
| |
| vsi->current_isup = isup; |
| |
| if (!isup) { |
| netdev_info(vsi->netdev, "NIC Link is Down\n"); |
| return; |
| } |
| |
| switch (vsi->port_info->phy.link_info.link_speed) { |
| case ICE_AQ_LINK_SPEED_100GB: |
| speed = "100 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_50GB: |
| speed = "50 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_40GB: |
| speed = "40 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_25GB: |
| speed = "25 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_20GB: |
| speed = "20 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_10GB: |
| speed = "10 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_5GB: |
| speed = "5 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_2500MB: |
| speed = "2.5 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_1000MB: |
| speed = "1 G"; |
| break; |
| case ICE_AQ_LINK_SPEED_100MB: |
| speed = "100 M"; |
| break; |
| default: |
| speed = "Unknown"; |
| break; |
| } |
| |
| switch (vsi->port_info->fc.current_mode) { |
| case ICE_FC_FULL: |
| fc = "Rx/Tx"; |
| break; |
| case ICE_FC_TX_PAUSE: |
| fc = "Tx"; |
| break; |
| case ICE_FC_RX_PAUSE: |
| fc = "Rx"; |
| break; |
| case ICE_FC_NONE: |
| fc = "None"; |
| break; |
| default: |
| fc = "Unknown"; |
| break; |
| } |
| |
| /* Get FEC mode based on negotiated link info */ |
| switch (vsi->port_info->phy.link_info.fec_info) { |
| case ICE_AQ_LINK_25G_RS_528_FEC_EN: |
| /* fall through */ |
| case ICE_AQ_LINK_25G_RS_544_FEC_EN: |
| fec = "RS-FEC"; |
| break; |
| case ICE_AQ_LINK_25G_KR_FEC_EN: |
| fec = "FC-FEC/BASE-R"; |
| break; |
| default: |
| fec = "NONE"; |
| break; |
| } |
| |
| /* check if autoneg completed, might be false due to not supported */ |
| if (vsi->port_info->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) |
| an = "True"; |
| else |
| an = "False"; |
| |
| /* Get FEC mode requested based on PHY caps last SW configuration */ |
| caps = kzalloc(sizeof(*caps), GFP_KERNEL); |
| if (!caps) { |
| fec_req = "Unknown"; |
| goto done; |
| } |
| |
| status = ice_aq_get_phy_caps(vsi->port_info, false, |
| ICE_AQC_REPORT_SW_CFG, caps, NULL); |
| if (status) |
| netdev_info(vsi->netdev, "Get phy capability failed.\n"); |
| |
| if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || |
| caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) |
| fec_req = "RS-FEC"; |
| else if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || |
| caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) |
| fec_req = "FC-FEC/BASE-R"; |
| else |
| fec_req = "NONE"; |
| |
| kfree(caps); |
| |
| done: |
| netdev_info(vsi->netdev, "NIC Link is up %sbps, Requested FEC: %s, FEC: %s, Autoneg: %s, Flow Control: %s\n", |
| speed, fec_req, fec, an, fc); |
| ice_print_topo_conflict(vsi); |
| } |
| |
| /** |
| * ice_vsi_link_event - update the VSI's netdev |
| * @vsi: the VSI on which the link event occurred |
| * @link_up: whether or not the VSI needs to be set up or down |
| */ |
| static void ice_vsi_link_event(struct ice_vsi *vsi, bool link_up) |
| { |
| if (!vsi) |
| return; |
| |
| if (test_bit(__ICE_DOWN, vsi->state) || !vsi->netdev) |
| return; |
| |
| if (vsi->type == ICE_VSI_PF) { |
| if (link_up == netif_carrier_ok(vsi->netdev)) |
| return; |
| |
| if (link_up) { |
| netif_carrier_on(vsi->netdev); |
| netif_tx_wake_all_queues(vsi->netdev); |
| } else { |
| netif_carrier_off(vsi->netdev); |
| netif_tx_stop_all_queues(vsi->netdev); |
| } |
| } |
| } |
| |
| /** |
| * ice_link_event - process the link event |
| * @pf: PF that the link event is associated with |
| * @pi: port_info for the port that the link event is associated with |
| * @link_up: true if the physical link is up and false if it is down |
| * @link_speed: current link speed received from the link event |
| * |
| * Returns 0 on success and negative on failure |
| */ |
| static int |
| ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up, |
| u16 link_speed) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_phy_info *phy_info; |
| struct ice_vsi *vsi; |
| u16 old_link_speed; |
| bool old_link; |
| int result; |
| |
| phy_info = &pi->phy; |
| phy_info->link_info_old = phy_info->link_info; |
| |
| old_link = !!(phy_info->link_info_old.link_info & ICE_AQ_LINK_UP); |
| old_link_speed = phy_info->link_info_old.link_speed; |
| |
| /* update the link info structures and re-enable link events, |
| * don't bail on failure due to other book keeping needed |
| */ |
| result = ice_update_link_info(pi); |
| if (result) |
| dev_dbg(dev, |
| "Failed to update link status and re-enable link events for port %d\n", |
| pi->lport); |
| |
| /* if the old link up/down and speed is the same as the new */ |
| if (link_up == old_link && link_speed == old_link_speed) |
| return result; |
| |
| vsi = ice_get_main_vsi(pf); |
| if (!vsi || !vsi->port_info) |
| return -EINVAL; |
| |
| /* turn off PHY if media was removed */ |
| if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) && |
| !(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) { |
| set_bit(ICE_FLAG_NO_MEDIA, pf->flags); |
| |
| result = ice_aq_set_link_restart_an(pi, false, NULL); |
| if (result) { |
| dev_dbg(dev, |
| "Failed to set link down, VSI %d error %d\n", |
| vsi->vsi_num, result); |
| return result; |
| } |
| } |
| |
| ice_vsi_link_event(vsi, link_up); |
| ice_print_link_msg(vsi, link_up); |
| |
| ice_vc_notify_link_state(pf); |
| |
| return result; |
| } |
| |
| /** |
| * ice_watchdog_subtask - periodic tasks not using event driven scheduling |
| * @pf: board private structure |
| */ |
| static void ice_watchdog_subtask(struct ice_pf *pf) |
| { |
| int i; |
| |
| /* if interface is down do nothing */ |
| if (test_bit(__ICE_DOWN, pf->state) || |
| test_bit(__ICE_CFG_BUSY, pf->state)) |
| return; |
| |
| /* make sure we don't do these things too often */ |
| if (time_before(jiffies, |
| pf->serv_tmr_prev + pf->serv_tmr_period)) |
| return; |
| |
| pf->serv_tmr_prev = jiffies; |
| |
| /* Update the stats for active netdevs so the network stack |
| * can look at updated numbers whenever it cares to |
| */ |
| ice_update_pf_stats(pf); |
| ice_for_each_vsi(pf, i) |
| if (pf->vsi[i] && pf->vsi[i]->netdev) |
| ice_update_vsi_stats(pf->vsi[i]); |
| } |
| |
| /** |
| * ice_init_link_events - enable/initialize link events |
| * @pi: pointer to the port_info instance |
| * |
| * Returns -EIO on failure, 0 on success |
| */ |
| static int ice_init_link_events(struct ice_port_info *pi) |
| { |
| u16 mask; |
| |
| mask = ~((u16)(ICE_AQ_LINK_EVENT_UPDOWN | ICE_AQ_LINK_EVENT_MEDIA_NA | |
| ICE_AQ_LINK_EVENT_MODULE_QUAL_FAIL)); |
| |
| if (ice_aq_set_event_mask(pi->hw, pi->lport, mask, NULL)) { |
| dev_dbg(ice_hw_to_dev(pi->hw), |
| "Failed to set link event mask for port %d\n", |
| pi->lport); |
| return -EIO; |
| } |
| |
| if (ice_aq_get_link_info(pi, true, NULL, NULL)) { |
| dev_dbg(ice_hw_to_dev(pi->hw), |
| "Failed to enable link events for port %d\n", |
| pi->lport); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_handle_link_event - handle link event via ARQ |
| * @pf: PF that the link event is associated with |
| * @event: event structure containing link status info |
| */ |
| static int |
| ice_handle_link_event(struct ice_pf *pf, struct ice_rq_event_info *event) |
| { |
| struct ice_aqc_get_link_status_data *link_data; |
| struct ice_port_info *port_info; |
| int status; |
| |
| link_data = (struct ice_aqc_get_link_status_data *)event->msg_buf; |
| port_info = pf->hw.port_info; |
| if (!port_info) |
| return -EINVAL; |
| |
| status = ice_link_event(pf, port_info, |
| !!(link_data->link_info & ICE_AQ_LINK_UP), |
| le16_to_cpu(link_data->link_speed)); |
| if (status) |
| dev_dbg(ice_pf_to_dev(pf), |
| "Could not process link event, error %d\n", status); |
| |
| return status; |
| } |
| |
| /** |
| * __ice_clean_ctrlq - helper function to clean controlq rings |
| * @pf: ptr to struct ice_pf |
| * @q_type: specific Control queue type |
| */ |
| static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_rq_event_info event; |
| struct ice_hw *hw = &pf->hw; |
| struct ice_ctl_q_info *cq; |
| u16 pending, i = 0; |
| const char *qtype; |
| u32 oldval, val; |
| |
| /* Do not clean control queue if/when PF reset fails */ |
| if (test_bit(__ICE_RESET_FAILED, pf->state)) |
| return 0; |
| |
| switch (q_type) { |
| case ICE_CTL_Q_ADMIN: |
| cq = &hw->adminq; |
| qtype = "Admin"; |
| break; |
| case ICE_CTL_Q_MAILBOX: |
| cq = &hw->mailboxq; |
| qtype = "Mailbox"; |
| break; |
| default: |
| dev_warn(dev, "Unknown control queue type 0x%x\n", q_type); |
| return 0; |
| } |
| |
| /* check for error indications - PF_xx_AxQLEN register layout for |
| * FW/MBX/SB are identical so just use defines for PF_FW_AxQLEN. |
| */ |
| val = rd32(hw, cq->rq.len); |
| if (val & (PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M | |
| PF_FW_ARQLEN_ARQCRIT_M)) { |
| oldval = val; |
| if (val & PF_FW_ARQLEN_ARQVFE_M) |
| dev_dbg(dev, "%s Receive Queue VF Error detected\n", |
| qtype); |
| if (val & PF_FW_ARQLEN_ARQOVFL_M) { |
| dev_dbg(dev, |
| "%s Receive Queue Overflow Error detected\n", |
| qtype); |
| } |
| if (val & PF_FW_ARQLEN_ARQCRIT_M) |
| dev_dbg(dev, |
| "%s Receive Queue Critical Error detected\n", |
| qtype); |
| val &= ~(PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M | |
| PF_FW_ARQLEN_ARQCRIT_M); |
| if (oldval != val) |
| wr32(hw, cq->rq.len, val); |
| } |
| |
| val = rd32(hw, cq->sq.len); |
| if (val & (PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M | |
| PF_FW_ATQLEN_ATQCRIT_M)) { |
| oldval = val; |
| if (val & PF_FW_ATQLEN_ATQVFE_M) |
| dev_dbg(dev, |
| "%s Send Queue VF Error detected\n", qtype); |
| if (val & PF_FW_ATQLEN_ATQOVFL_M) { |
| dev_dbg(dev, "%s Send Queue Overflow Error detected\n", |
| qtype); |
| } |
| if (val & PF_FW_ATQLEN_ATQCRIT_M) |
| dev_dbg(dev, "%s Send Queue Critical Error detected\n", |
| qtype); |
| val &= ~(PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M | |
| PF_FW_ATQLEN_ATQCRIT_M); |
| if (oldval != val) |
| wr32(hw, cq->sq.len, val); |
| } |
| |
| event.buf_len = cq->rq_buf_size; |
| event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); |
| if (!event.msg_buf) |
| return 0; |
| |
| do { |
| enum ice_status ret; |
| u16 opcode; |
| |
| ret = ice_clean_rq_elem(hw, cq, &event, &pending); |
| if (ret == ICE_ERR_AQ_NO_WORK) |
| break; |
| if (ret) { |
| dev_err(dev, "%s Receive Queue event error %d\n", qtype, |
| ret); |
| break; |
| } |
| |
| opcode = le16_to_cpu(event.desc.opcode); |
| |
| switch (opcode) { |
| case ice_aqc_opc_get_link_status: |
| if (ice_handle_link_event(pf, &event)) |
| dev_err(dev, "Could not handle link event\n"); |
| break; |
| case ice_mbx_opc_send_msg_to_pf: |
| ice_vc_process_vf_msg(pf, &event); |
| break; |
| case ice_aqc_opc_fw_logging: |
| ice_output_fw_log(hw, &event.desc, event.msg_buf); |
| break; |
| case ice_aqc_opc_lldp_set_mib_change: |
| ice_dcb_process_lldp_set_mib_change(pf, &event); |
| break; |
| default: |
| dev_dbg(dev, |
| "%s Receive Queue unknown event 0x%04x ignored\n", |
| qtype, opcode); |
| break; |
| } |
| } while (pending && (i++ < ICE_DFLT_IRQ_WORK)); |
| |
| kfree(event.msg_buf); |
| |
| return pending && (i == ICE_DFLT_IRQ_WORK); |
| } |
| |
| /** |
| * ice_ctrlq_pending - check if there is a difference between ntc and ntu |
| * @hw: pointer to hardware info |
| * @cq: control queue information |
| * |
| * returns true if there are pending messages in a queue, false if there aren't |
| */ |
| static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq) |
| { |
| u16 ntu; |
| |
| ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask); |
| return cq->rq.next_to_clean != ntu; |
| } |
| |
| /** |
| * ice_clean_adminq_subtask - clean the AdminQ rings |
| * @pf: board private structure |
| */ |
| static void ice_clean_adminq_subtask(struct ice_pf *pf) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| if (!test_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state)) |
| return; |
| |
| if (__ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN)) |
| return; |
| |
| clear_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state); |
| |
| /* There might be a situation where new messages arrive to a control |
| * queue between processing the last message and clearing the |
| * EVENT_PENDING bit. So before exiting, check queue head again (using |
| * ice_ctrlq_pending) and process new messages if any. |
| */ |
| if (ice_ctrlq_pending(hw, &hw->adminq)) |
| __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN); |
| |
| ice_flush(hw); |
| } |
| |
| /** |
| * ice_clean_mailboxq_subtask - clean the MailboxQ rings |
| * @pf: board private structure |
| */ |
| static void ice_clean_mailboxq_subtask(struct ice_pf *pf) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| if (!test_bit(__ICE_MAILBOXQ_EVENT_PENDING, pf->state)) |
| return; |
| |
| if (__ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX)) |
| return; |
| |
| clear_bit(__ICE_MAILBOXQ_EVENT_PENDING, pf->state); |
| |
| if (ice_ctrlq_pending(hw, &hw->mailboxq)) |
| __ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX); |
| |
| ice_flush(hw); |
| } |
| |
| /** |
| * ice_service_task_schedule - schedule the service task to wake up |
| * @pf: board private structure |
| * |
| * If not already scheduled, this puts the task into the work queue. |
| */ |
| static void ice_service_task_schedule(struct ice_pf *pf) |
| { |
| if (!test_bit(__ICE_SERVICE_DIS, pf->state) && |
| !test_and_set_bit(__ICE_SERVICE_SCHED, pf->state) && |
| !test_bit(__ICE_NEEDS_RESTART, pf->state)) |
| queue_work(ice_wq, &pf->serv_task); |
| } |
| |
| /** |
| * ice_service_task_complete - finish up the service task |
| * @pf: board private structure |
| */ |
| static void ice_service_task_complete(struct ice_pf *pf) |
| { |
| WARN_ON(!test_bit(__ICE_SERVICE_SCHED, pf->state)); |
| |
| /* force memory (pf->state) to sync before next service task */ |
| smp_mb__before_atomic(); |
| clear_bit(__ICE_SERVICE_SCHED, pf->state); |
| } |
| |
| /** |
| * ice_service_task_stop - stop service task and cancel works |
| * @pf: board private structure |
| */ |
| static void ice_service_task_stop(struct ice_pf *pf) |
| { |
| set_bit(__ICE_SERVICE_DIS, pf->state); |
| |
| if (pf->serv_tmr.function) |
| del_timer_sync(&pf->serv_tmr); |
| if (pf->serv_task.func) |
| cancel_work_sync(&pf->serv_task); |
| |
| clear_bit(__ICE_SERVICE_SCHED, pf->state); |
| } |
| |
| /** |
| * ice_service_task_restart - restart service task and schedule works |
| * @pf: board private structure |
| * |
| * This function is needed for suspend and resume works (e.g WoL scenario) |
| */ |
| static void ice_service_task_restart(struct ice_pf *pf) |
| { |
| clear_bit(__ICE_SERVICE_DIS, pf->state); |
| ice_service_task_schedule(pf); |
| } |
| |
| /** |
| * ice_service_timer - timer callback to schedule service task |
| * @t: pointer to timer_list |
| */ |
| static void ice_service_timer(struct timer_list *t) |
| { |
| struct ice_pf *pf = from_timer(pf, t, serv_tmr); |
| |
| mod_timer(&pf->serv_tmr, round_jiffies(pf->serv_tmr_period + jiffies)); |
| ice_service_task_schedule(pf); |
| } |
| |
| /** |
| * ice_handle_mdd_event - handle malicious driver detect event |
| * @pf: pointer to the PF structure |
| * |
| * Called from service task. OICR interrupt handler indicates MDD event |
| */ |
| static void ice_handle_mdd_event(struct ice_pf *pf) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| bool mdd_detected = false; |
| u32 reg; |
| int i; |
| |
| if (!test_and_clear_bit(__ICE_MDD_EVENT_PENDING, pf->state)) |
| return; |
| |
| /* find what triggered the MDD event */ |
| reg = rd32(hw, GL_MDET_TX_PQM); |
| if (reg & GL_MDET_TX_PQM_VALID_M) { |
| u8 pf_num = (reg & GL_MDET_TX_PQM_PF_NUM_M) >> |
| GL_MDET_TX_PQM_PF_NUM_S; |
| u16 vf_num = (reg & GL_MDET_TX_PQM_VF_NUM_M) >> |
| GL_MDET_TX_PQM_VF_NUM_S; |
| u8 event = (reg & GL_MDET_TX_PQM_MAL_TYPE_M) >> |
| GL_MDET_TX_PQM_MAL_TYPE_S; |
| u16 queue = ((reg & GL_MDET_TX_PQM_QNUM_M) >> |
| GL_MDET_TX_PQM_QNUM_S); |
| |
| if (netif_msg_tx_err(pf)) |
| dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n", |
| event, queue, pf_num, vf_num); |
| wr32(hw, GL_MDET_TX_PQM, 0xffffffff); |
| mdd_detected = true; |
| } |
| |
| reg = rd32(hw, GL_MDET_TX_TCLAN); |
| if (reg & GL_MDET_TX_TCLAN_VALID_M) { |
| u8 pf_num = (reg & GL_MDET_TX_TCLAN_PF_NUM_M) >> |
| GL_MDET_TX_TCLAN_PF_NUM_S; |
| u16 vf_num = (reg & GL_MDET_TX_TCLAN_VF_NUM_M) >> |
| GL_MDET_TX_TCLAN_VF_NUM_S; |
| u8 event = (reg & GL_MDET_TX_TCLAN_MAL_TYPE_M) >> |
| GL_MDET_TX_TCLAN_MAL_TYPE_S; |
| u16 queue = ((reg & GL_MDET_TX_TCLAN_QNUM_M) >> |
| GL_MDET_TX_TCLAN_QNUM_S); |
| |
| if (netif_msg_rx_err(pf)) |
| dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n", |
| event, queue, pf_num, vf_num); |
| wr32(hw, GL_MDET_TX_TCLAN, 0xffffffff); |
| mdd_detected = true; |
| } |
| |
| reg = rd32(hw, GL_MDET_RX); |
| if (reg & GL_MDET_RX_VALID_M) { |
| u8 pf_num = (reg & GL_MDET_RX_PF_NUM_M) >> |
| GL_MDET_RX_PF_NUM_S; |
| u16 vf_num = (reg & GL_MDET_RX_VF_NUM_M) >> |
| GL_MDET_RX_VF_NUM_S; |
| u8 event = (reg & GL_MDET_RX_MAL_TYPE_M) >> |
| GL_MDET_RX_MAL_TYPE_S; |
| u16 queue = ((reg & GL_MDET_RX_QNUM_M) >> |
| GL_MDET_RX_QNUM_S); |
| |
| if (netif_msg_rx_err(pf)) |
| dev_info(dev, "Malicious Driver Detection event %d on RX queue %d PF# %d VF# %d\n", |
| event, queue, pf_num, vf_num); |
| wr32(hw, GL_MDET_RX, 0xffffffff); |
| mdd_detected = true; |
| } |
| |
| if (mdd_detected) { |
| bool pf_mdd_detected = false; |
| |
| reg = rd32(hw, PF_MDET_TX_PQM); |
| if (reg & PF_MDET_TX_PQM_VALID_M) { |
| wr32(hw, PF_MDET_TX_PQM, 0xFFFF); |
| dev_info(dev, "TX driver issue detected, PF reset issued\n"); |
| pf_mdd_detected = true; |
| } |
| |
| reg = rd32(hw, PF_MDET_TX_TCLAN); |
| if (reg & PF_MDET_TX_TCLAN_VALID_M) { |
| wr32(hw, PF_MDET_TX_TCLAN, 0xFFFF); |
| dev_info(dev, "TX driver issue detected, PF reset issued\n"); |
| pf_mdd_detected = true; |
| } |
| |
| reg = rd32(hw, PF_MDET_RX); |
| if (reg & PF_MDET_RX_VALID_M) { |
| wr32(hw, PF_MDET_RX, 0xFFFF); |
| dev_info(dev, "RX driver issue detected, PF reset issued\n"); |
| pf_mdd_detected = true; |
| } |
| /* Queue belongs to the PF initiate a reset */ |
| if (pf_mdd_detected) { |
| set_bit(__ICE_NEEDS_RESTART, pf->state); |
| ice_service_task_schedule(pf); |
| } |
| } |
| |
| /* check to see if one of the VFs caused the MDD */ |
| ice_for_each_vf(pf, i) { |
| struct ice_vf *vf = &pf->vf[i]; |
| |
| bool vf_mdd_detected = false; |
| |
| reg = rd32(hw, VP_MDET_TX_PQM(i)); |
| if (reg & VP_MDET_TX_PQM_VALID_M) { |
| wr32(hw, VP_MDET_TX_PQM(i), 0xFFFF); |
| vf_mdd_detected = true; |
| dev_info(dev, "TX driver issue detected on VF %d\n", |
| i); |
| } |
| |
| reg = rd32(hw, VP_MDET_TX_TCLAN(i)); |
| if (reg & VP_MDET_TX_TCLAN_VALID_M) { |
| wr32(hw, VP_MDET_TX_TCLAN(i), 0xFFFF); |
| vf_mdd_detected = true; |
| dev_info(dev, "TX driver issue detected on VF %d\n", |
| i); |
| } |
| |
| reg = rd32(hw, VP_MDET_TX_TDPU(i)); |
| if (reg & VP_MDET_TX_TDPU_VALID_M) { |
| wr32(hw, VP_MDET_TX_TDPU(i), 0xFFFF); |
| vf_mdd_detected = true; |
| dev_info(dev, "TX driver issue detected on VF %d\n", |
| i); |
| } |
| |
| reg = rd32(hw, VP_MDET_RX(i)); |
| if (reg & VP_MDET_RX_VALID_M) { |
| wr32(hw, VP_MDET_RX(i), 0xFFFF); |
| vf_mdd_detected = true; |
| dev_info(dev, "RX driver issue detected on VF %d\n", |
| i); |
| } |
| |
| if (vf_mdd_detected) { |
| vf->num_mdd_events++; |
| if (vf->num_mdd_events && |
| vf->num_mdd_events <= ICE_MDD_EVENTS_THRESHOLD) |
| dev_info(dev, |
| "VF %d has had %llu MDD events since last boot, Admin might need to reload AVF driver with this number of events\n", |
| i, vf->num_mdd_events); |
| } |
| } |
| } |
| |
| /** |
| * ice_force_phys_link_state - Force the physical link state |
| * @vsi: VSI to force the physical link state to up/down |
| * @link_up: true/false indicates to set the physical link to up/down |
| * |
| * Force the physical link state by getting the current PHY capabilities from |
| * hardware and setting the PHY config based on the determined capabilities. If |
| * link changes a link event will be triggered because both the Enable Automatic |
| * Link Update and LESM Enable bits are set when setting the PHY capabilities. |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up) |
| { |
| struct ice_aqc_get_phy_caps_data *pcaps; |
| struct ice_aqc_set_phy_cfg_data *cfg; |
| struct ice_port_info *pi; |
| struct device *dev; |
| int retcode; |
| |
| if (!vsi || !vsi->port_info || !vsi->back) |
| return -EINVAL; |
| if (vsi->type != ICE_VSI_PF) |
| return 0; |
| |
| dev = &vsi->back->pdev->dev; |
| |
| pi = vsi->port_info; |
| |
| pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); |
| if (!pcaps) |
| return -ENOMEM; |
| |
| retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, |
| NULL); |
| if (retcode) { |
| dev_err(dev, |
| "Failed to get phy capabilities, VSI %d error %d\n", |
| vsi->vsi_num, retcode); |
| retcode = -EIO; |
| goto out; |
| } |
| |
| /* No change in link */ |
| if (link_up == !!(pcaps->caps & ICE_AQC_PHY_EN_LINK) && |
| link_up == !!(pi->phy.link_info.link_info & ICE_AQ_LINK_UP)) |
| goto out; |
| |
| cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); |
| if (!cfg) { |
| retcode = -ENOMEM; |
| goto out; |
| } |
| |
| cfg->phy_type_low = pcaps->phy_type_low; |
| cfg->phy_type_high = pcaps->phy_type_high; |
| cfg->caps = pcaps->caps | ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; |
| cfg->low_power_ctrl = pcaps->low_power_ctrl; |
| cfg->eee_cap = pcaps->eee_cap; |
| cfg->eeer_value = pcaps->eeer_value; |
| cfg->link_fec_opt = pcaps->link_fec_options; |
| if (link_up) |
| cfg->caps |= ICE_AQ_PHY_ENA_LINK; |
| else |
| cfg->caps &= ~ICE_AQ_PHY_ENA_LINK; |
| |
| retcode = ice_aq_set_phy_cfg(&vsi->back->hw, pi->lport, cfg, NULL); |
| if (retcode) { |
| dev_err(dev, "Failed to set phy config, VSI %d error %d\n", |
| vsi->vsi_num, retcode); |
| retcode = -EIO; |
| } |
| |
| kfree(cfg); |
| out: |
| kfree(pcaps); |
| return retcode; |
| } |
| |
| /** |
| * ice_check_media_subtask - Check for media; bring link up if detected. |
| * @pf: pointer to PF struct |
| */ |
| static void ice_check_media_subtask(struct ice_pf *pf) |
| { |
| struct ice_port_info *pi; |
| struct ice_vsi *vsi; |
| int err; |
| |
| vsi = ice_get_main_vsi(pf); |
| if (!vsi) |
| return; |
| |
| /* No need to check for media if it's already present or the interface |
| * is down |
| */ |
| if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) || |
| test_bit(__ICE_DOWN, vsi->state)) |
| return; |
| |
| /* Refresh link info and check if media is present */ |
| pi = vsi->port_info; |
| err = ice_update_link_info(pi); |
| if (err) |
| return; |
| |
| if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { |
| err = ice_force_phys_link_state(vsi, true); |
| if (err) |
| return; |
| clear_bit(ICE_FLAG_NO_MEDIA, pf->flags); |
| |
| /* A Link Status Event will be generated; the event handler |
| * will complete bringing the interface up |
| */ |
| } |
| } |
| |
| /** |
| * ice_service_task - manage and run subtasks |
| * @work: pointer to work_struct contained by the PF struct |
| */ |
| static void ice_service_task(struct work_struct *work) |
| { |
| struct ice_pf *pf = container_of(work, struct ice_pf, serv_task); |
| unsigned long start_time = jiffies; |
| |
| /* subtasks */ |
| |
| /* process reset requests first */ |
| ice_reset_subtask(pf); |
| |
| /* bail if a reset/recovery cycle is pending or rebuild failed */ |
| if (ice_is_reset_in_progress(pf->state) || |
| test_bit(__ICE_SUSPENDED, pf->state) || |
| test_bit(__ICE_NEEDS_RESTART, pf->state)) { |
| ice_service_task_complete(pf); |
| return; |
| } |
| |
| ice_clean_adminq_subtask(pf); |
| ice_check_media_subtask(pf); |
| ice_check_for_hang_subtask(pf); |
| ice_sync_fltr_subtask(pf); |
| ice_handle_mdd_event(pf); |
| ice_watchdog_subtask(pf); |
| |
| if (ice_is_safe_mode(pf)) { |
| ice_service_task_complete(pf); |
| return; |
| } |
| |
| ice_process_vflr_event(pf); |
| ice_clean_mailboxq_subtask(pf); |
| |
| /* Clear __ICE_SERVICE_SCHED flag to allow scheduling next event */ |
| ice_service_task_complete(pf); |
| |
| /* If the tasks have taken longer than one service timer period |
| * or there is more work to be done, reset the service timer to |
| * schedule the service task now. |
| */ |
| if (time_after(jiffies, (start_time + pf->serv_tmr_period)) || |
| test_bit(__ICE_MDD_EVENT_PENDING, pf->state) || |
| test_bit(__ICE_VFLR_EVENT_PENDING, pf->state) || |
| test_bit(__ICE_MAILBOXQ_EVENT_PENDING, pf->state) || |
| test_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state)) |
| mod_timer(&pf->serv_tmr, jiffies); |
| } |
| |
| /** |
| * ice_set_ctrlq_len - helper function to set controlq length |
| * @hw: pointer to the HW instance |
| */ |
| static void ice_set_ctrlq_len(struct ice_hw *hw) |
| { |
| hw->adminq.num_rq_entries = ICE_AQ_LEN; |
| hw->adminq.num_sq_entries = ICE_AQ_LEN; |
| hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN; |
| hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN; |
| hw->mailboxq.num_rq_entries = ICE_MBXRQ_LEN; |
| hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN; |
| hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN; |
| hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN; |
| } |
| |
| /** |
| * ice_schedule_reset - schedule a reset |
| * @pf: board private structure |
| * @reset: reset being requested |
| */ |
| int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| |
| /* bail out if earlier reset has failed */ |
| if (test_bit(__ICE_RESET_FAILED, pf->state)) { |
| dev_dbg(dev, "earlier reset has failed\n"); |
| return -EIO; |
| } |
| /* bail if reset/recovery already in progress */ |
| if (ice_is_reset_in_progress(pf->state)) { |
| dev_dbg(dev, "Reset already in progress\n"); |
| return -EBUSY; |
| } |
| |
| switch (reset) { |
| case ICE_RESET_PFR: |
| set_bit(__ICE_PFR_REQ, pf->state); |
| break; |
| case ICE_RESET_CORER: |
| set_bit(__ICE_CORER_REQ, pf->state); |
| break; |
| case ICE_RESET_GLOBR: |
| set_bit(__ICE_GLOBR_REQ, pf->state); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| ice_service_task_schedule(pf); |
| return 0; |
| } |
| |
| /** |
| * ice_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 |
| ice_irq_affinity_notify(struct irq_affinity_notify *notify, |
| const cpumask_t *mask) |
| { |
| struct ice_q_vector *q_vector = |
| container_of(notify, struct ice_q_vector, affinity_notify); |
| |
| cpumask_copy(&q_vector->affinity_mask, mask); |
| } |
| |
| /** |
| * ice_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 ice_irq_affinity_release(struct kref __always_unused *ref) {} |
| |
| /** |
| * ice_vsi_ena_irq - Enable IRQ for the given VSI |
| * @vsi: the VSI being configured |
| */ |
| static int ice_vsi_ena_irq(struct ice_vsi *vsi) |
| { |
| struct ice_hw *hw = &vsi->back->hw; |
| int i; |
| |
| ice_for_each_q_vector(vsi, i) |
| ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]); |
| |
| ice_flush(hw); |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI |
| * @vsi: the VSI being configured |
| * @basename: name for the vector |
| */ |
| static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename) |
| { |
| int q_vectors = vsi->num_q_vectors; |
| struct ice_pf *pf = vsi->back; |
| int base = vsi->base_vector; |
| struct device *dev; |
| int rx_int_idx = 0; |
| int tx_int_idx = 0; |
| int vector, err; |
| int irq_num; |
| |
| dev = ice_pf_to_dev(pf); |
| for (vector = 0; vector < q_vectors; vector++) { |
| struct ice_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++); |
| tx_int_idx++; |
| } else if (q_vector->rx.ring) { |
| snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
| "%s-%s-%d", basename, "rx", rx_int_idx++); |
| } else if (q_vector->tx.ring) { |
| snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
| "%s-%s-%d", basename, "tx", tx_int_idx++); |
| } else { |
| /* skip this unused q_vector */ |
| continue; |
| } |
| err = devm_request_irq(dev, irq_num, vsi->irq_handler, 0, |
| q_vector->name, q_vector); |
| if (err) { |
| netdev_err(vsi->netdev, |
| "MSIX request_irq failed, error: %d\n", err); |
| goto free_q_irqs; |
| } |
| |
| /* register for affinity change notifications */ |
| q_vector->affinity_notify.notify = ice_irq_affinity_notify; |
| q_vector->affinity_notify.release = ice_irq_affinity_release; |
| irq_set_affinity_notifier(irq_num, &q_vector->affinity_notify); |
| |
| /* assign the mask for this irq */ |
| irq_set_affinity_hint(irq_num, &q_vector->affinity_mask); |
| } |
| |
| vsi->irqs_ready = true; |
| return 0; |
| |
| free_q_irqs: |
| while (vector) { |
| vector--; |
| irq_num = pf->msix_entries[base + vector].vector, |
| irq_set_affinity_notifier(irq_num, NULL); |
| irq_set_affinity_hint(irq_num, NULL); |
| devm_free_irq(dev, irq_num, &vsi->q_vectors[vector]); |
| } |
| return err; |
| } |
| |
| /** |
| * ice_xdp_alloc_setup_rings - Allocate and setup Tx rings for XDP |
| * @vsi: VSI to setup Tx rings used by XDP |
| * |
| * Return 0 on success and negative value on error |
| */ |
| static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi) |
| { |
| struct device *dev = &vsi->back->pdev->dev; |
| int i; |
| |
| for (i = 0; i < vsi->num_xdp_txq; i++) { |
| u16 xdp_q_idx = vsi->alloc_txq + i; |
| struct ice_ring *xdp_ring; |
| |
| xdp_ring = kzalloc(sizeof(*xdp_ring), GFP_KERNEL); |
| |
| if (!xdp_ring) |
| goto free_xdp_rings; |
| |
| xdp_ring->q_index = xdp_q_idx; |
| xdp_ring->reg_idx = vsi->txq_map[xdp_q_idx]; |
| xdp_ring->ring_active = false; |
| xdp_ring->vsi = vsi; |
| xdp_ring->netdev = NULL; |
| xdp_ring->dev = dev; |
| xdp_ring->count = vsi->num_tx_desc; |
| vsi->xdp_rings[i] = xdp_ring; |
| if (ice_setup_tx_ring(xdp_ring)) |
| goto free_xdp_rings; |
| ice_set_ring_xdp(xdp_ring); |
| xdp_ring->xsk_umem = ice_xsk_umem(xdp_ring); |
| } |
| |
| return 0; |
| |
| free_xdp_rings: |
| for (; i >= 0; i--) |
| if (vsi->xdp_rings[i] && vsi->xdp_rings[i]->desc) |
| ice_free_tx_ring(vsi->xdp_rings[i]); |
| return -ENOMEM; |
| } |
| |
| /** |
| * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI |
| * @vsi: VSI to set the bpf prog on |
| * @prog: the bpf prog pointer |
| */ |
| static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog) |
| { |
| struct bpf_prog *old_prog; |
| int i; |
| |
| old_prog = xchg(&vsi->xdp_prog, prog); |
| if (old_prog) |
| bpf_prog_put(old_prog); |
| |
| ice_for_each_rxq(vsi, i) |
| WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog); |
| } |
| |
| /** |
| * ice_prepare_xdp_rings - Allocate, configure and setup Tx rings for XDP |
| * @vsi: VSI to bring up Tx rings used by XDP |
| * @prog: bpf program that will be assigned to VSI |
| * |
| * Return 0 on success and negative value on error |
| */ |
| int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog) |
| { |
| u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; |
| int xdp_rings_rem = vsi->num_xdp_txq; |
| struct ice_pf *pf = vsi->back; |
| struct ice_qs_cfg xdp_qs_cfg = { |
| .qs_mutex = &pf->avail_q_mutex, |
| .pf_map = pf->avail_txqs, |
| .pf_map_size = pf->max_pf_txqs, |
| .q_count = vsi->num_xdp_txq, |
| .scatter_count = ICE_MAX_SCATTER_TXQS, |
| .vsi_map = vsi->txq_map, |
| .vsi_map_offset = vsi->alloc_txq, |
| .mapping_mode = ICE_VSI_MAP_CONTIG |
| }; |
| enum ice_status status; |
| struct device *dev; |
| int i, v_idx; |
| |
| dev = ice_pf_to_dev(pf); |
| vsi->xdp_rings = devm_kcalloc(dev, vsi->num_xdp_txq, |
| sizeof(*vsi->xdp_rings), GFP_KERNEL); |
| if (!vsi->xdp_rings) |
| return -ENOMEM; |
| |
| vsi->xdp_mapping_mode = xdp_qs_cfg.mapping_mode; |
| if (__ice_vsi_get_qs(&xdp_qs_cfg)) |
| goto err_map_xdp; |
| |
| if (ice_xdp_alloc_setup_rings(vsi)) |
| goto clear_xdp_rings; |
| |
| /* follow the logic from ice_vsi_map_rings_to_vectors */ |
| ice_for_each_q_vector(vsi, v_idx) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; |
| int xdp_rings_per_v, q_id, q_base; |
| |
| xdp_rings_per_v = DIV_ROUND_UP(xdp_rings_rem, |
| vsi->num_q_vectors - v_idx); |
| q_base = vsi->num_xdp_txq - xdp_rings_rem; |
| |
| for (q_id = q_base; q_id < (q_base + xdp_rings_per_v); q_id++) { |
| struct ice_ring *xdp_ring = vsi->xdp_rings[q_id]; |
| |
| xdp_ring->q_vector = q_vector; |
| xdp_ring->next = q_vector->tx.ring; |
| q_vector->tx.ring = xdp_ring; |
| } |
| xdp_rings_rem -= xdp_rings_per_v; |
| } |
| |
| /* omit the scheduler update if in reset path; XDP queues will be |
| * taken into account at the end of ice_vsi_rebuild, where |
| * ice_cfg_vsi_lan is being called |
| */ |
| if (ice_is_reset_in_progress(pf->state)) |
| return 0; |
| |
| /* tell the Tx scheduler that right now we have |
| * additional queues |
| */ |
| for (i = 0; i < vsi->tc_cfg.numtc; i++) |
| max_txqs[i] = vsi->num_txq + vsi->num_xdp_txq; |
| |
| status = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, |
| max_txqs); |
| if (status) { |
| dev_err(dev, "Failed VSI LAN queue config for XDP, error:%d\n", |
| status); |
| goto clear_xdp_rings; |
| } |
| ice_vsi_assign_bpf_prog(vsi, prog); |
| |
| return 0; |
| clear_xdp_rings: |
| for (i = 0; i < vsi->num_xdp_txq; i++) |
| if (vsi->xdp_rings[i]) { |
| kfree_rcu(vsi->xdp_rings[i], rcu); |
| vsi->xdp_rings[i] = NULL; |
| } |
| |
| err_map_xdp: |
| mutex_lock(&pf->avail_q_mutex); |
| for (i = 0; i < vsi->num_xdp_txq; i++) { |
| clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs); |
| vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX; |
| } |
| mutex_unlock(&pf->avail_q_mutex); |
| |
| devm_kfree(dev, vsi->xdp_rings); |
| return -ENOMEM; |
| } |
| |
| /** |
| * ice_destroy_xdp_rings - undo the configuration made by ice_prepare_xdp_rings |
| * @vsi: VSI to remove XDP rings |
| * |
| * Detach XDP rings from irq vectors, clean up the PF bitmap and free |
| * resources |
| */ |
| int ice_destroy_xdp_rings(struct ice_vsi *vsi) |
| { |
| u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; |
| struct ice_pf *pf = vsi->back; |
| int i, v_idx; |
| |
| /* q_vectors are freed in reset path so there's no point in detaching |
| * rings; in case of rebuild being triggered not from reset reset bits |
| * in pf->state won't be set, so additionally check first q_vector |
| * against NULL |
| */ |
| if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0]) |
| goto free_qmap; |
| |
| ice_for_each_q_vector(vsi, v_idx) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; |
| struct ice_ring *ring; |
| |
| ice_for_each_ring(ring, q_vector->tx) |
| if (!ring->tx_buf || !ice_ring_is_xdp(ring)) |
| break; |
| |
| /* restore the value of last node prior to XDP setup */ |
| q_vector->tx.ring = ring; |
| } |
| |
| free_qmap: |
| mutex_lock(&pf->avail_q_mutex); |
| for (i = 0; i < vsi->num_xdp_txq; i++) { |
| clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs); |
| vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX; |
| } |
| mutex_unlock(&pf->avail_q_mutex); |
| |
| for (i = 0; i < vsi->num_xdp_txq; i++) |
| if (vsi->xdp_rings[i]) { |
| if (vsi->xdp_rings[i]->desc) |
| ice_free_tx_ring(vsi->xdp_rings[i]); |
| kfree_rcu(vsi->xdp_rings[i], rcu); |
| vsi->xdp_rings[i] = NULL; |
| } |
| |
| devm_kfree(ice_pf_to_dev(pf), vsi->xdp_rings); |
| vsi->xdp_rings = NULL; |
| |
| if (ice_is_reset_in_progress(pf->state) || !vsi->q_vectors[0]) |
| return 0; |
| |
| ice_vsi_assign_bpf_prog(vsi, NULL); |
| |
| /* notify Tx scheduler that we destroyed XDP queues and bring |
| * back the old number of child nodes |
| */ |
| for (i = 0; i < vsi->tc_cfg.numtc; i++) |
| max_txqs[i] = vsi->num_txq; |
| |
| return ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, |
| max_txqs); |
| } |
| |
| /** |
| * ice_xdp_setup_prog - Add or remove XDP eBPF program |
| * @vsi: VSI to setup XDP for |
| * @prog: XDP program |
| * @extack: netlink extended ack |
| */ |
| static int |
| ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog, |
| struct netlink_ext_ack *extack) |
| { |
| int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD; |
| bool if_running = netif_running(vsi->netdev); |
| int ret = 0, xdp_ring_err = 0; |
| |
| if (frame_size > vsi->rx_buf_len) { |
| NL_SET_ERR_MSG_MOD(extack, "MTU too large for loading XDP"); |
| return -EOPNOTSUPP; |
| } |
| |
| /* need to stop netdev while setting up the program for Rx rings */ |
| if (if_running && !test_and_set_bit(__ICE_DOWN, vsi->state)) { |
| ret = ice_down(vsi); |
| if (ret) { |
| NL_SET_ERR_MSG_MOD(extack, |
| "Preparing device for XDP attach failed"); |
| return ret; |
| } |
| } |
| |
| if (!ice_is_xdp_ena_vsi(vsi) && prog) { |
| vsi->num_xdp_txq = vsi->alloc_txq; |
| xdp_ring_err = ice_prepare_xdp_rings(vsi, prog); |
| if (xdp_ring_err) |
| NL_SET_ERR_MSG_MOD(extack, |
| "Setting up XDP Tx resources failed"); |
| } else if (ice_is_xdp_ena_vsi(vsi) && !prog) { |
| xdp_ring_err = ice_destroy_xdp_rings(vsi); |
| if (xdp_ring_err) |
| NL_SET_ERR_MSG_MOD(extack, |
| "Freeing XDP Tx resources failed"); |
| } else { |
| ice_vsi_assign_bpf_prog(vsi, prog); |
| } |
| |
| if (if_running) |
| ret = ice_up(vsi); |
| |
| if (!ret && prog && vsi->xsk_umems) { |
| int i; |
| |
| ice_for_each_rxq(vsi, i) { |
| struct ice_ring *rx_ring = vsi->rx_rings[i]; |
| |
| if (rx_ring->xsk_umem) |
| napi_schedule(&rx_ring->q_vector->napi); |
| } |
| } |
| |
| return (ret || xdp_ring_err) ? -ENOMEM : 0; |
| } |
| |
| /** |
| * ice_xdp - implements XDP handler |
| * @dev: netdevice |
| * @xdp: XDP command |
| */ |
| static int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp) |
| { |
| struct ice_netdev_priv *np = netdev_priv(dev); |
| struct ice_vsi *vsi = np->vsi; |
| |
| if (vsi->type != ICE_VSI_PF) { |
| NL_SET_ERR_MSG_MOD(xdp->extack, |
| "XDP can be loaded only on PF VSI"); |
| return -EINVAL; |
| } |
| |
| switch (xdp->command) { |
| case XDP_SETUP_PROG: |
| return ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack); |
| case XDP_QUERY_PROG: |
| xdp->prog_id = vsi->xdp_prog ? vsi->xdp_prog->aux->id : 0; |
| return 0; |
| case XDP_SETUP_XSK_UMEM: |
| return ice_xsk_umem_setup(vsi, xdp->xsk.umem, |
| xdp->xsk.queue_id); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| /** |
| * ice_ena_misc_vector - enable the non-queue interrupts |
| * @pf: board private structure |
| */ |
| static void ice_ena_misc_vector(struct ice_pf *pf) |
| { |
| struct ice_hw *hw = &pf->hw; |
| u32 val; |
| |
| /* clear things first */ |
| wr32(hw, PFINT_OICR_ENA, 0); /* disable all */ |
| rd32(hw, PFINT_OICR); /* read to clear */ |
| |
| val = (PFINT_OICR_ECC_ERR_M | |
| PFINT_OICR_MAL_DETECT_M | |
| PFINT_OICR_GRST_M | |
| PFINT_OICR_PCI_EXCEPTION_M | |
| PFINT_OICR_VFLR_M | |
| PFINT_OICR_HMC_ERR_M | |
| PFINT_OICR_PE_CRITERR_M); |
| |
| wr32(hw, PFINT_OICR_ENA, val); |
| |
| /* SW_ITR_IDX = 0, but don't change INTENA */ |
| wr32(hw, GLINT_DYN_CTL(pf->oicr_idx), |
| GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M); |
| } |
| |
| /** |
| * ice_misc_intr - misc interrupt handler |
| * @irq: interrupt number |
| * @data: pointer to a q_vector |
| */ |
| static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) |
| { |
| struct ice_pf *pf = (struct ice_pf *)data; |
| struct ice_hw *hw = &pf->hw; |
| irqreturn_t ret = IRQ_NONE; |
| struct device *dev; |
| u32 oicr, ena_mask; |
| |
| dev = ice_pf_to_dev(pf); |
| set_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state); |
| set_bit(__ICE_MAILBOXQ_EVENT_PENDING, pf->state); |
| |
| oicr = rd32(hw, PFINT_OICR); |
| ena_mask = rd32(hw, PFINT_OICR_ENA); |
| |
| if (oicr & PFINT_OICR_SWINT_M) { |
| ena_mask &= ~PFINT_OICR_SWINT_M; |
| pf->sw_int_count++; |
| } |
| |
| if (oicr & PFINT_OICR_MAL_DETECT_M) { |
| ena_mask &= ~PFINT_OICR_MAL_DETECT_M; |
| set_bit(__ICE_MDD_EVENT_PENDING, pf->state); |
| } |
| if (oicr & PFINT_OICR_VFLR_M) { |
| ena_mask &= ~PFINT_OICR_VFLR_M; |
| set_bit(__ICE_VFLR_EVENT_PENDING, pf->state); |
| } |
| |
| if (oicr & PFINT_OICR_GRST_M) { |
| u32 reset; |
| |
| /* we have a reset warning */ |
| ena_mask &= ~PFINT_OICR_GRST_M; |
| reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >> |
| GLGEN_RSTAT_RESET_TYPE_S; |
| |
| if (reset == ICE_RESET_CORER) |
| pf->corer_count++; |
| else if (reset == ICE_RESET_GLOBR) |
| pf->globr_count++; |
| else if (reset == ICE_RESET_EMPR) |
| pf->empr_count++; |
| else |
| dev_dbg(dev, "Invalid reset type %d\n", reset); |
| |
| /* If a reset cycle isn't already in progress, we set a bit in |
| * pf->state so that the service task can start a reset/rebuild. |
| * We also make note of which reset happened so that peer |
| * devices/drivers can be informed. |
| */ |
| if (!test_and_set_bit(__ICE_RESET_OICR_RECV, pf->state)) { |
| if (reset == ICE_RESET_CORER) |
| set_bit(__ICE_CORER_RECV, pf->state); |
| else if (reset == ICE_RESET_GLOBR) |
| set_bit(__ICE_GLOBR_RECV, pf->state); |
| else |
| set_bit(__ICE_EMPR_RECV, pf->state); |
| |
| /* There are couple of different bits at play here. |
| * hw->reset_ongoing indicates whether the hardware is |
| * in reset. This is set to true when a reset interrupt |
| * is received and set back to false after the driver |
| * has determined that the hardware is out of reset. |
| * |
| * __ICE_RESET_OICR_RECV in pf->state indicates |
| * that a post reset rebuild is required before the |
| * driver is operational again. This is set above. |
| * |
| * As this is the start of the reset/rebuild cycle, set |
| * both to indicate that. |
| */ |
| hw->reset_ongoing = true; |
| } |
| } |
| |
| if (oicr & PFINT_OICR_HMC_ERR_M) { |
| ena_mask &= ~PFINT_OICR_HMC_ERR_M; |
| dev_dbg(dev, "HMC Error interrupt - info 0x%x, data 0x%x\n", |
| rd32(hw, PFHMC_ERRORINFO), |
| rd32(hw, PFHMC_ERRORDATA)); |
| } |
| |
| /* Report any remaining unexpected interrupts */ |
| oicr &= ena_mask; |
| if (oicr) { |
| dev_dbg(dev, "unhandled interrupt oicr=0x%08x\n", oicr); |
| /* If a critical error is pending there is no choice but to |
| * reset the device. |
| */ |
| if (oicr & (PFINT_OICR_PE_CRITERR_M | |
| PFINT_OICR_PCI_EXCEPTION_M | |
| PFINT_OICR_ECC_ERR_M)) { |
| set_bit(__ICE_PFR_REQ, pf->state); |
| ice_service_task_schedule(pf); |
| } |
| } |
| ret = IRQ_HANDLED; |
| |
| if (!test_bit(__ICE_DOWN, pf->state)) { |
| ice_service_task_schedule(pf); |
| ice_irq_dynamic_ena(hw, NULL, NULL); |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * ice_dis_ctrlq_interrupts - disable control queue interrupts |
| * @hw: pointer to HW structure |
| */ |
| static void ice_dis_ctrlq_interrupts(struct ice_hw *hw) |
| { |
| /* disable Admin queue Interrupt causes */ |
| wr32(hw, PFINT_FW_CTL, |
| rd32(hw, PFINT_FW_CTL) & ~PFINT_FW_CTL_CAUSE_ENA_M); |
| |
| /* disable Mailbox queue Interrupt causes */ |
| wr32(hw, PFINT_MBX_CTL, |
| rd32(hw, PFINT_MBX_CTL) & ~PFINT_MBX_CTL_CAUSE_ENA_M); |
| |
| /* disable Control queue Interrupt causes */ |
| wr32(hw, PFINT_OICR_CTL, |
| rd32(hw, PFINT_OICR_CTL) & ~PFINT_OICR_CTL_CAUSE_ENA_M); |
| |
| ice_flush(hw); |
| } |
| |
| /** |
| * ice_free_irq_msix_misc - Unroll misc vector setup |
| * @pf: board private structure |
| */ |
| static void ice_free_irq_msix_misc(struct ice_pf *pf) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| ice_dis_ctrlq_interrupts(hw); |
| |
| /* disable OICR interrupt */ |
| wr32(hw, PFINT_OICR_ENA, 0); |
| ice_flush(hw); |
| |
| if (pf->msix_entries) { |
| synchronize_irq(pf->msix_entries[pf->oicr_idx].vector); |
| devm_free_irq(ice_pf_to_dev(pf), |
| pf->msix_entries[pf->oicr_idx].vector, pf); |
| } |
| |
| pf->num_avail_sw_msix += 1; |
| ice_free_res(pf->irq_tracker, pf->oicr_idx, ICE_RES_MISC_VEC_ID); |
| } |
| |
| /** |
| * ice_ena_ctrlq_interrupts - enable control queue interrupts |
| * @hw: pointer to HW structure |
| * @reg_idx: HW vector index to associate the control queue interrupts with |
| */ |
| static void ice_ena_ctrlq_interrupts(struct ice_hw *hw, u16 reg_idx) |
| { |
| u32 val; |
| |
| val = ((reg_idx & PFINT_OICR_CTL_MSIX_INDX_M) | |
| PFINT_OICR_CTL_CAUSE_ENA_M); |
| wr32(hw, PFINT_OICR_CTL, val); |
| |
| /* enable Admin queue Interrupt causes */ |
| val = ((reg_idx & PFINT_FW_CTL_MSIX_INDX_M) | |
| PFINT_FW_CTL_CAUSE_ENA_M); |
| wr32(hw, PFINT_FW_CTL, val); |
| |
| /* enable Mailbox queue Interrupt causes */ |
| val = ((reg_idx & PFINT_MBX_CTL_MSIX_INDX_M) | |
| PFINT_MBX_CTL_CAUSE_ENA_M); |
| wr32(hw, PFINT_MBX_CTL, val); |
| |
| ice_flush(hw); |
| } |
| |
| /** |
| * ice_req_irq_msix_misc - Setup the misc vector to handle non queue events |
| * @pf: board private structure |
| * |
| * This sets up the handler for MSIX 0, which is used to manage the |
| * non-queue interrupts, e.g. AdminQ and errors. This is not used |
| * when in MSI or Legacy interrupt mode. |
| */ |
| static int ice_req_irq_msix_misc(struct ice_pf *pf) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| int oicr_idx, err = 0; |
| |
| if (!pf->int_name[0]) |
| snprintf(pf->int_name, sizeof(pf->int_name) - 1, "%s-%s:misc", |
| dev_driver_string(dev), dev_name(dev)); |
| |
| /* Do not request IRQ but do enable OICR interrupt since settings are |
| * lost during reset. Note that this function is called only during |
| * rebuild path and not while reset is in progress. |
| */ |
| if (ice_is_reset_in_progress(pf->state)) |
| goto skip_req_irq; |
| |
| /* reserve one vector in irq_tracker for misc interrupts */ |
| oicr_idx = ice_get_res(pf, pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID); |
| if (oicr_idx < 0) |
| return oicr_idx; |
| |
| pf->num_avail_sw_msix -= 1; |
| pf->oicr_idx = oicr_idx; |
| |
| err = devm_request_irq(dev, pf->msix_entries[pf->oicr_idx].vector, |
| ice_misc_intr, 0, pf->int_name, pf); |
| if (err) { |
| dev_err(dev, "devm_request_irq for %s failed: %d\n", |
| pf->int_name, err); |
| ice_free_res(pf->irq_tracker, 1, ICE_RES_MISC_VEC_ID); |
| pf->num_avail_sw_msix += 1; |
| return err; |
| } |
| |
| skip_req_irq: |
| ice_ena_misc_vector(pf); |
| |
| ice_ena_ctrlq_interrupts(hw, pf->oicr_idx); |
| wr32(hw, GLINT_ITR(ICE_RX_ITR, pf->oicr_idx), |
| ITR_REG_ALIGN(ICE_ITR_8K) >> ICE_ITR_GRAN_S); |
| |
| ice_flush(hw); |
| ice_irq_dynamic_ena(hw, NULL, NULL); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_napi_add - register NAPI handler for the VSI |
| * @vsi: VSI for which NAPI handler is to be registered |
| * |
| * This function is only called in the driver's load path. Registering the NAPI |
| * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume, |
| * reset/rebuild, etc.) |
| */ |
| static void ice_napi_add(struct ice_vsi *vsi) |
| { |
| int v_idx; |
| |
| if (!vsi->netdev) |
| return; |
| |
| ice_for_each_q_vector(vsi, v_idx) |
| netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx]->napi, |
| ice_napi_poll, NAPI_POLL_WEIGHT); |
| } |
| |
| /** |
| * ice_set_ops - set netdev and ethtools ops for the given netdev |
| * @netdev: netdev instance |
| */ |
| static void ice_set_ops(struct net_device *netdev) |
| { |
| struct ice_pf *pf = ice_netdev_to_pf(netdev); |
| |
| if (ice_is_safe_mode(pf)) { |
| netdev->netdev_ops = &ice_netdev_safe_mode_ops; |
| ice_set_ethtool_safe_mode_ops(netdev); |
| return; |
| } |
| |
| netdev->netdev_ops = &ice_netdev_ops; |
| ice_set_ethtool_ops(netdev); |
| } |
| |
| /** |
| * ice_set_netdev_features - set features for the given netdev |
| * @netdev: netdev instance |
| */ |
| static void ice_set_netdev_features(struct net_device *netdev) |
| { |
| struct ice_pf *pf = ice_netdev_to_pf(netdev); |
| netdev_features_t csumo_features; |
| netdev_features_t vlano_features; |
| netdev_features_t dflt_features; |
| netdev_features_t tso_features; |
| |
| if (ice_is_safe_mode(pf)) { |
| /* safe mode */ |
| netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA; |
| netdev->hw_features = netdev->features; |
| return; |
| } |
| |
| dflt_features = NETIF_F_SG | |
| NETIF_F_HIGHDMA | |
| NETIF_F_RXHASH; |
| |
| csumo_features = NETIF_F_RXCSUM | |
| NETIF_F_IP_CSUM | |
| NETIF_F_SCTP_CRC | |
| NETIF_F_IPV6_CSUM; |
| |
| vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER | |
| NETIF_F_HW_VLAN_CTAG_TX | |
| NETIF_F_HW_VLAN_CTAG_RX; |
| |
| tso_features = NETIF_F_TSO | |
| NETIF_F_GSO_UDP_L4; |
| |
| /* set features that user can change */ |
| netdev->hw_features = dflt_features | csumo_features | |
| vlano_features | tso_features; |
| |
| /* enable features */ |
| netdev->features |= netdev->hw_features; |
| /* encap and VLAN devices inherit default, csumo and tso features */ |
| netdev->hw_enc_features |= dflt_features | csumo_features | |
| tso_features; |
| netdev->vlan_features |= dflt_features | csumo_features | |
| tso_features; |
| } |
| |
| /** |
| * ice_cfg_netdev - Allocate, configure and register a netdev |
| * @vsi: the VSI associated with the new netdev |
| * |
| * Returns 0 on success, negative value on failure |
| */ |
| static int ice_cfg_netdev(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_netdev_priv *np; |
| struct net_device *netdev; |
| u8 mac_addr[ETH_ALEN]; |
| int err; |
| |
| netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq, |
| vsi->alloc_rxq); |
| if (!netdev) |
| return -ENOMEM; |
| |
| vsi->netdev = netdev; |
| np = netdev_priv(netdev); |
| np->vsi = vsi; |
| |
| ice_set_netdev_features(netdev); |
| |
| ice_set_ops(netdev); |
| |
| if (vsi->type == ICE_VSI_PF) { |
| SET_NETDEV_DEV(netdev, ice_pf_to_dev(pf)); |
| ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr); |
| ether_addr_copy(netdev->dev_addr, mac_addr); |
| ether_addr_copy(netdev->perm_addr, mac_addr); |
| } |
| |
| netdev->priv_flags |= IFF_UNICAST_FLT; |
| |
| /* Setup netdev TC information */ |
| ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc); |
| |
| /* setup watchdog timeout value to be 5 second */ |
| netdev->watchdog_timeo = 5 * HZ; |
| |
| netdev->min_mtu = ETH_MIN_MTU; |
| netdev->max_mtu = ICE_MAX_MTU; |
| |
| err = register_netdev(vsi->netdev); |
| if (err) |
| return err; |
| |
| netif_carrier_off(vsi->netdev); |
| |
| /* make sure transmit queues start off as stopped */ |
| netif_tx_stop_all_queues(vsi->netdev); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_fill_rss_lut - Fill the RSS lookup table with default values |
| * @lut: Lookup table |
| * @rss_table_size: Lookup table size |
| * @rss_size: Range of queue number for hashing |
| */ |
| void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size) |
| { |
| u16 i; |
| |
| for (i = 0; i < rss_table_size; i++) |
| lut[i] = i % rss_size; |
| } |
| |
| /** |
| * ice_pf_vsi_setup - Set up a PF VSI |
| * @pf: board private structure |
| * @pi: pointer to the port_info instance |
| * |
| * Returns pointer to the successfully allocated VSI software struct |
| * on success, otherwise returns NULL on failure. |
| */ |
| static struct ice_vsi * |
| ice_pf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi) |
| { |
| return ice_vsi_setup(pf, pi, ICE_VSI_PF, ICE_INVAL_VFID); |
| } |
| |
| /** |
| * ice_lb_vsi_setup - Set up a loopback VSI |
| * @pf: board private structure |
| * @pi: pointer to the port_info instance |
| * |
| * Returns pointer to the successfully allocated VSI software struct |
| * on success, otherwise returns NULL on failure. |
| */ |
| struct ice_vsi * |
| ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi) |
| { |
| return ice_vsi_setup(pf, pi, ICE_VSI_LB, ICE_INVAL_VFID); |
| } |
| |
| /** |
| * ice_vlan_rx_add_vid - Add a VLAN ID filter to HW offload |
| * @netdev: network interface to be adjusted |
| * @proto: unused protocol |
| * @vid: VLAN ID to be added |
| * |
| * net_device_ops implementation for adding VLAN IDs |
| */ |
| static int |
| ice_vlan_rx_add_vid(struct net_device *netdev, __always_unused __be16 proto, |
| u16 vid) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| int ret; |
| |
| if (vid >= VLAN_N_VID) { |
| netdev_err(netdev, "VLAN id requested %d is out of range %d\n", |
| vid, VLAN_N_VID); |
| return -EINVAL; |
| } |
| |
| if (vsi->info.pvid) |
| return -EINVAL; |
| |
| /* Enable VLAN pruning when VLAN 0 is added */ |
| if (unlikely(!vid)) { |
| ret = ice_cfg_vlan_pruning(vsi, true, false); |
| if (ret) |
| return ret; |
| } |
| |
| /* Add all VLAN IDs including 0 to the switch filter. VLAN ID 0 is |
| * needed to continue allowing all untagged packets since VLAN prune |
| * list is applied to all packets by the switch |
| */ |
| ret = ice_vsi_add_vlan(vsi, vid); |
| if (!ret) { |
| vsi->vlan_ena = true; |
| set_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags); |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * ice_vlan_rx_kill_vid - Remove a VLAN ID filter from HW offload |
| * @netdev: network interface to be adjusted |
| * @proto: unused protocol |
| * @vid: VLAN ID to be removed |
| * |
| * net_device_ops implementation for removing VLAN IDs |
| */ |
| static int |
| ice_vlan_rx_kill_vid(struct net_device *netdev, __always_unused __be16 proto, |
| u16 vid) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| int ret; |
| |
| if (vsi->info.pvid) |
| return -EINVAL; |
| |
| /* Make sure ice_vsi_kill_vlan is successful before updating VLAN |
| * information |
| */ |
| ret = ice_vsi_kill_vlan(vsi, vid); |
| if (ret) |
| return ret; |
| |
| /* Disable VLAN pruning when VLAN 0 is removed */ |
| if (unlikely(!vid)) |
| ret = ice_cfg_vlan_pruning(vsi, false, false); |
| |
| vsi->vlan_ena = false; |
| set_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags); |
| return ret; |
| } |
| |
| /** |
| * ice_setup_pf_sw - Setup the HW switch on startup or after reset |
| * @pf: board private structure |
| * |
| * Returns 0 on success, negative value on failure |
| */ |
| static int ice_setup_pf_sw(struct ice_pf *pf) |
| { |
| struct ice_vsi *vsi; |
| int status = 0; |
| |
| if (ice_is_reset_in_progress(pf->state)) |
| return -EBUSY; |
| |
| vsi = ice_pf_vsi_setup(pf, pf->hw.port_info); |
| if (!vsi) { |
| status = -ENOMEM; |
| goto unroll_vsi_setup; |
| } |
| |
| status = ice_cfg_netdev(vsi); |
| if (status) { |
| status = -ENODEV; |
| goto unroll_vsi_setup; |
| } |
| /* netdev has to be configured before setting frame size */ |
| ice_vsi_cfg_frame_size(vsi); |
| |
| /* Setup DCB netlink interface */ |
| ice_dcbnl_setup(vsi); |
| |
| /* registering the NAPI handler requires both the queues and |
| * netdev to be created, which are done in ice_pf_vsi_setup() |
| * and ice_cfg_netdev() respectively |
| */ |
| ice_napi_add(vsi); |
| |
| status = ice_init_mac_fltr(pf); |
| if (status) |
| goto unroll_napi_add; |
| |
| return status; |
| |
| unroll_napi_add: |
| if (vsi) { |
| ice_napi_del(vsi); |
| if (vsi->netdev) { |
| if (vsi->netdev->reg_state == NETREG_REGISTERED) |
| unregister_netdev(vsi->netdev); |
| free_netdev(vsi->netdev); |
| vsi->netdev = NULL; |
| } |
| } |
| |
| unroll_vsi_setup: |
| if (vsi) { |
| ice_vsi_free_q_vectors(vsi); |
| ice_vsi_delete(vsi); |
| ice_vsi_put_qs(vsi); |
| ice_vsi_clear(vsi); |
| } |
| return status; |
| } |
| |
| /** |
| * ice_get_avail_q_count - Get count of queues in use |
| * @pf_qmap: bitmap to get queue use count from |
| * @lock: pointer to a mutex that protects access to pf_qmap |
| * @size: size of the bitmap |
| */ |
| static u16 |
| ice_get_avail_q_count(unsigned long *pf_qmap, struct mutex *lock, u16 size) |
| { |
| u16 count = 0, bit; |
| |
| mutex_lock(lock); |
| for_each_clear_bit(bit, pf_qmap, size) |
| count++; |
| mutex_unlock(lock); |
| |
| return count; |
| } |
| |
| /** |
| * ice_get_avail_txq_count - Get count of Tx queues in use |
| * @pf: pointer to an ice_pf instance |
| */ |
| u16 ice_get_avail_txq_count(struct ice_pf *pf) |
| { |
| return ice_get_avail_q_count(pf->avail_txqs, &pf->avail_q_mutex, |
| pf->max_pf_txqs); |
| } |
| |
| /** |
| * ice_get_avail_rxq_count - Get count of Rx queues in use |
| * @pf: pointer to an ice_pf instance |
| */ |
| u16 ice_get_avail_rxq_count(struct ice_pf *pf) |
| { |
| return ice_get_avail_q_count(pf->avail_rxqs, &pf->avail_q_mutex, |
| pf->max_pf_rxqs); |
| } |
| |
| /** |
| * ice_deinit_pf - Unrolls initialziations done by ice_init_pf |
| * @pf: board private structure to initialize |
| */ |
| static void ice_deinit_pf(struct ice_pf *pf) |
| { |
| ice_service_task_stop(pf); |
| mutex_destroy(&pf->sw_mutex); |
| mutex_destroy(&pf->tc_mutex); |
| mutex_destroy(&pf->avail_q_mutex); |
| |
| if (pf->avail_txqs) { |
| bitmap_free(pf->avail_txqs); |
| pf->avail_txqs = NULL; |
| } |
| |
| if (pf->avail_rxqs) { |
| bitmap_free(pf->avail_rxqs); |
| pf->avail_rxqs = NULL; |
| } |
| } |
| |
| /** |
| * ice_set_pf_caps - set PFs capability flags |
| * @pf: pointer to the PF instance |
| */ |
| static void ice_set_pf_caps(struct ice_pf *pf) |
| { |
| struct ice_hw_func_caps *func_caps = &pf->hw.func_caps; |
| |
| clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); |
| if (func_caps->common_cap.dcb) |
| set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); |
| #ifdef CONFIG_PCI_IOV |
| clear_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags); |
| if (func_caps->common_cap.sr_iov_1_1) { |
| set_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags); |
| pf->num_vfs_supported = min_t(int, func_caps->num_allocd_vfs, |
| ICE_MAX_VF_COUNT); |
| } |
| #endif /* CONFIG_PCI_IOV */ |
| clear_bit(ICE_FLAG_RSS_ENA, pf->flags); |
| if (func_caps->common_cap.rss_table_size) |
| set_bit(ICE_FLAG_RSS_ENA, pf->flags); |
| |
| pf->max_pf_txqs = func_caps->common_cap.num_txq; |
| pf->max_pf_rxqs = func_caps->common_cap.num_rxq; |
| } |
| |
| /** |
| * ice_init_pf - Initialize general software structures (struct ice_pf) |
| * @pf: board private structure to initialize |
| */ |
| static int ice_init_pf(struct ice_pf *pf) |
| { |
| ice_set_pf_caps(pf); |
| |
| mutex_init(&pf->sw_mutex); |
| mutex_init(&pf->tc_mutex); |
| |
| /* setup service timer and periodic service task */ |
| timer_setup(&pf->serv_tmr, ice_service_timer, 0); |
| pf->serv_tmr_period = HZ; |
| INIT_WORK(&pf->serv_task, ice_service_task); |
| clear_bit(__ICE_SERVICE_SCHED, pf->state); |
| |
| mutex_init(&pf->avail_q_mutex); |
| pf->avail_txqs = bitmap_zalloc(pf->max_pf_txqs, GFP_KERNEL); |
| if (!pf->avail_txqs) |
| return -ENOMEM; |
| |
| pf->avail_rxqs = bitmap_zalloc(pf->max_pf_rxqs, GFP_KERNEL); |
| if (!pf->avail_rxqs) { |
| devm_kfree(ice_pf_to_dev(pf), pf->avail_txqs); |
| pf->avail_txqs = NULL; |
| return -ENOMEM; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_ena_msix_range - Request a range of MSIX vectors from the OS |
| * @pf: board private structure |
| * |
| * compute the number of MSIX vectors required (v_budget) and request from |
| * the OS. Return the number of vectors reserved or negative on failure |
| */ |
| static int ice_ena_msix_range(struct ice_pf *pf) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| int v_left, v_actual, v_budget = 0; |
| int needed, err, i; |
| |
| v_left = pf->hw.func_caps.common_cap.num_msix_vectors; |
| |
| /* reserve one vector for miscellaneous handler */ |
| needed = 1; |
| if (v_left < needed) |
| goto no_hw_vecs_left_err; |
| v_budget += needed; |
| v_left -= needed; |
| |
| /* reserve vectors for LAN traffic */ |
| needed = min_t(int, num_online_cpus(), v_left); |
| if (v_left < needed) |
| goto no_hw_vecs_left_err; |
| pf->num_lan_msix = needed; |
| v_budget += needed; |
| v_left -= needed; |
| |
| pf->msix_entries = devm_kcalloc(dev, v_budget, |
| sizeof(*pf->msix_entries), GFP_KERNEL); |
| |
| if (!pf->msix_entries) { |
| err = -ENOMEM; |
| goto exit_err; |
| } |
| |
| for (i = 0; i < v_budget; i++) |
| pf->msix_entries[i].entry = i; |
| |
| /* actually reserve the vectors */ |
| v_actual = pci_enable_msix_range(pf->pdev, pf->msix_entries, |
| ICE_MIN_MSIX, v_budget); |
| |
| if (v_actual < 0) { |
| dev_err(dev, "unable to reserve MSI-X vectors\n"); |
| err = v_actual; |
| goto msix_err; |
| } |
| |
| if (v_actual < v_budget) { |
| dev_warn(dev, |
| "not enough OS MSI-X vectors. requested = %d, obtained = %d\n", |
| v_budget, v_actual); |
| /* 2 vectors for LAN (traffic + OICR) */ |
| #define ICE_MIN_LAN_VECS 2 |
| |
| if (v_actual < ICE_MIN_LAN_VECS) { |
| /* error if we can't get minimum vectors */ |
| pci_disable_msix(pf->pdev); |
| err = -ERANGE; |
| goto msix_err; |
| } else { |
| pf->num_lan_msix = ICE_MIN_LAN_VECS; |
| } |
| } |
| |
| return v_actual; |
| |
| msix_err: |
| devm_kfree(dev, pf->msix_entries); |
| goto exit_err; |
| |
| no_hw_vecs_left_err: |
| dev_err(dev, |
| "not enough device MSI-X vectors. requested = %d, available = %d\n", |
| needed, v_left); |
| err = -ERANGE; |
| exit_err: |
| pf->num_lan_msix = 0; |
| return err; |
| } |
| |
| /** |
| * ice_dis_msix - Disable MSI-X interrupt setup in OS |
| * @pf: board private structure |
| */ |
| static void ice_dis_msix(struct ice_pf *pf) |
| { |
| pci_disable_msix(pf->pdev); |
| devm_kfree(ice_pf_to_dev(pf), pf->msix_entries); |
| pf->msix_entries = NULL; |
| } |
| |
| /** |
| * ice_clear_interrupt_scheme - Undo things done by ice_init_interrupt_scheme |
| * @pf: board private structure |
| */ |
| static void ice_clear_interrupt_scheme(struct ice_pf *pf) |
| { |
| ice_dis_msix(pf); |
| |
| if (pf->irq_tracker) { |
| devm_kfree(ice_pf_to_dev(pf), pf->irq_tracker); |
| pf->irq_tracker = NULL; |
| } |
| } |
| |
| /** |
| * ice_init_interrupt_scheme - Determine proper interrupt scheme |
| * @pf: board private structure to initialize |
| */ |
| static int ice_init_interrupt_scheme(struct ice_pf *pf) |
| { |
| int vectors; |
| |
| vectors = ice_ena_msix_range(pf); |
| |
| if (vectors < 0) |
| return vectors; |
| |
| /* set up vector assignment tracking */ |
| pf->irq_tracker = |
| devm_kzalloc(ice_pf_to_dev(pf), sizeof(*pf->irq_tracker) + |
| (sizeof(u16) * vectors), GFP_KERNEL); |
| if (!pf->irq_tracker) { |
| ice_dis_msix(pf); |
| return -ENOMEM; |
| } |
| |
| /* populate SW interrupts pool with number of OS granted IRQs. */ |
| pf->num_avail_sw_msix = vectors; |
| pf->irq_tracker->num_entries = vectors; |
| pf->irq_tracker->end = pf->irq_tracker->num_entries; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_recfg_qs - Change the number of queues on a VSI |
| * @vsi: VSI being changed |
| * @new_rx: new number of Rx queues |
| * @new_tx: new number of Tx queues |
| * |
| * Only change the number of queues if new_tx, or new_rx is non-0. |
| * |
| * Returns 0 on success. |
| */ |
| int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx) |
| { |
| struct ice_pf *pf = vsi->back; |
| int err = 0, timeout = 50; |
| |
| if (!new_rx && !new_tx) |
| return -EINVAL; |
| |
| while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) { |
| timeout--; |
| if (!timeout) |
| return -EBUSY; |
| usleep_range(1000, 2000); |
| } |
| |
| if (new_tx) |
| vsi->req_txq = new_tx; |
| if (new_rx) |
| vsi->req_rxq = new_rx; |
| |
| /* set for the next time the netdev is started */ |
| if (!netif_running(vsi->netdev)) { |
| ice_vsi_rebuild(vsi, false); |
| dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n"); |
| goto done; |
| } |
| |
| ice_vsi_close(vsi); |
| ice_vsi_rebuild(vsi, false); |
| ice_pf_dcb_recfg(pf); |
| ice_vsi_open(vsi); |
| done: |
| clear_bit(__ICE_CFG_BUSY, pf->state); |
| return err; |
| } |
| |
| /** |
| * ice_log_pkg_init - log result of DDP package load |
| * @hw: pointer to hardware info |
| * @status: status of package load |
| */ |
| static void |
| ice_log_pkg_init(struct ice_hw *hw, enum ice_status *status) |
| { |
| struct ice_pf *pf = (struct ice_pf *)hw->back; |
| struct device *dev = ice_pf_to_dev(pf); |
| |
| switch (*status) { |
| case ICE_SUCCESS: |
| /* The package download AdminQ command returned success because |
| * this download succeeded or ICE_ERR_AQ_NO_WORK since there is |
| * already a package loaded on the device. |
| */ |
| if (hw->pkg_ver.major == hw->active_pkg_ver.major && |
| hw->pkg_ver.minor == hw->active_pkg_ver.minor && |
| hw->pkg_ver.update == hw->active_pkg_ver.update && |
| hw->pkg_ver.draft == hw->active_pkg_ver.draft && |
| !memcmp(hw->pkg_name, hw->active_pkg_name, |
| sizeof(hw->pkg_name))) { |
| if (hw->pkg_dwnld_status == ICE_AQ_RC_EEXIST) |
| dev_info(dev, |
| "DDP package already present on device: %s version %d.%d.%d.%d\n", |
| hw->active_pkg_name, |
| hw->active_pkg_ver.major, |
| hw->active_pkg_ver.minor, |
| hw->active_pkg_ver.update, |
| hw->active_pkg_ver.draft); |
| else |
| dev_info(dev, |
| "The DDP package was successfully loaded: %s version %d.%d.%d.%d\n", |
| hw->active_pkg_name, |
| hw->active_pkg_ver.major, |
| hw->active_pkg_ver.minor, |
| hw->active_pkg_ver.update, |
| hw->active_pkg_ver.draft); |
| } else if (hw->active_pkg_ver.major != ICE_PKG_SUPP_VER_MAJ || |
| hw->active_pkg_ver.minor != ICE_PKG_SUPP_VER_MNR) { |
| dev_err(dev, |
| "The device has a DDP package that is not supported by the driver. The device has package '%s' version %d.%d.x.x. The driver requires version %d.%d.x.x. Entering Safe Mode.\n", |
| hw->active_pkg_name, |
| hw->active_pkg_ver.major, |
| hw->active_pkg_ver.minor, |
| ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR); |
| *status = ICE_ERR_NOT_SUPPORTED; |
| } else if (hw->active_pkg_ver.major == ICE_PKG_SUPP_VER_MAJ && |
| hw->active_pkg_ver.minor == ICE_PKG_SUPP_VER_MNR) { |
| dev_info(dev, |
| "The driver could not load the DDP package file because a compatible DDP package is already present on the device. The device has package '%s' version %d.%d.%d.%d. The package file found by the driver: '%s' version %d.%d.%d.%d.\n", |
| hw->active_pkg_name, |
| hw->active_pkg_ver.major, |
| hw->active_pkg_ver.minor, |
| hw->active_pkg_ver.update, |
| hw->active_pkg_ver.draft, |
| hw->pkg_name, |
| hw->pkg_ver.major, |
| hw->pkg_ver.minor, |
| hw->pkg_ver.update, |
| hw->pkg_ver.draft); |
| } else { |
| dev_err(dev, |
| "An unknown error occurred when loading the DDP package, please reboot the system. If the problem persists, update the NVM. Entering Safe Mode.\n"); |
| *status = ICE_ERR_NOT_SUPPORTED; |
| } |
| break; |
| case ICE_ERR_BUF_TOO_SHORT: |
| /* fall-through */ |
| case ICE_ERR_CFG: |
| dev_err(dev, |
| "The DDP package file is invalid. Entering Safe Mode.\n"); |
| break; |
| case ICE_ERR_NOT_SUPPORTED: |
| /* Package File version not supported */ |
| if (hw->pkg_ver.major > ICE_PKG_SUPP_VER_MAJ || |
| (hw->pkg_ver.major == ICE_PKG_SUPP_VER_MAJ && |
| hw->pkg_ver.minor > ICE_PKG_SUPP_VER_MNR)) |
| dev_err(dev, |
| "The DDP package file version is higher than the driver supports. Please use an updated driver. Entering Safe Mode.\n"); |
| else if (hw->pkg_ver.major < ICE_PKG_SUPP_VER_MAJ || |
| (hw->pkg_ver.major == ICE_PKG_SUPP_VER_MAJ && |
| hw->pkg_ver.minor < ICE_PKG_SUPP_VER_MNR)) |
| dev_err(dev, |
| "The DDP package file version is lower than the driver supports. The driver requires version %d.%d.x.x. Please use an updated DDP Package file. Entering Safe Mode.\n", |
| ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR); |
| break; |
| case ICE_ERR_AQ_ERROR: |
| switch (hw->pkg_dwnld_status) { |
| case ICE_AQ_RC_ENOSEC: |
| case ICE_AQ_RC_EBADSIG: |
| dev_err(dev, |
| "The DDP package could not be loaded because its signature is not valid. Please use a valid DDP Package. Entering Safe Mode.\n"); |
| return; |
| case ICE_AQ_RC_ESVN: |
| dev_err(dev, |
| "The DDP Package could not be loaded because its security revision is too low. Please use an updated DDP Package. Entering Safe Mode.\n"); |
| return; |
| case ICE_AQ_RC_EBADMAN: |
| case ICE_AQ_RC_EBADBUF: |
| dev_err(dev, |
| "An error occurred on the device while loading the DDP package. The device will be reset.\n"); |
| return; |
| default: |
| break; |
| } |
| /* fall-through */ |
| default: |
| dev_err(dev, |
| "An unknown error (%d) occurred when loading the DDP package. Entering Safe Mode.\n", |
| *status); |
| break; |
| } |
| } |
| |
| /** |
| * ice_load_pkg - load/reload the DDP Package file |
| * @firmware: firmware structure when firmware requested or NULL for reload |
| * @pf: pointer to the PF instance |
| * |
| * Called on probe and post CORER/GLOBR rebuild to load DDP Package and |
| * initialize HW tables. |
| */ |
| static void |
| ice_load_pkg(const struct firmware *firmware, struct ice_pf *pf) |
| { |
| enum ice_status status = ICE_ERR_PARAM; |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| |
| /* Load DDP Package */ |
| if (firmware && !hw->pkg_copy) { |
| status = ice_copy_and_init_pkg(hw, firmware->data, |
| firmware->size); |
| ice_log_pkg_init(hw, &status); |
| } else if (!firmware && hw->pkg_copy) { |
| /* Reload package during rebuild after CORER/GLOBR reset */ |
| status = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size); |
| ice_log_pkg_init(hw, &status); |
| } else { |
| dev_err(dev, |
| "The DDP package file failed to load. Entering Safe Mode.\n"); |
| } |
| |
| if (status) { |
| /* Safe Mode */ |
| clear_bit(ICE_FLAG_ADV_FEATURES, pf->flags); |
| return; |
| } |
| |
| /* Successful download package is the precondition for advanced |
| * features, hence setting the ICE_FLAG_ADV_FEATURES flag |
| */ |
| set_bit(ICE_FLAG_ADV_FEATURES, pf->flags); |
| } |
| |
| /** |
| * ice_verify_cacheline_size - verify driver's assumption of 64 Byte cache lines |
| * @pf: pointer to the PF structure |
| * |
| * There is no error returned here because the driver should be able to handle |
| * 128 Byte cache lines, so we only print a warning in case issues are seen, |
| * specifically with Tx. |
| */ |
| static void ice_verify_cacheline_size(struct ice_pf *pf) |
| { |
| if (rd32(&pf->hw, GLPCI_CNF2) & GLPCI_CNF2_CACHELINE_SIZE_M) |
| dev_warn(ice_pf_to_dev(pf), |
| "%d Byte cache line assumption is invalid, driver may have Tx timeouts!\n", |
| ICE_CACHE_LINE_BYTES); |
| } |
| |
| /** |
| * ice_send_version - update firmware with driver version |
| * @pf: PF struct |
| * |
| * Returns ICE_SUCCESS on success, else error code |
| */ |
| static enum ice_status ice_send_version(struct ice_pf *pf) |
| { |
| struct ice_driver_ver dv; |
| |
| dv.major_ver = DRV_VERSION_MAJOR; |
| dv.minor_ver = DRV_VERSION_MINOR; |
| dv.build_ver = DRV_VERSION_BUILD; |
| dv.subbuild_ver = 0; |
| strscpy((char *)dv.driver_string, DRV_VERSION, |
| sizeof(dv.driver_string)); |
| return ice_aq_send_driver_ver(&pf->hw, &dv, NULL); |
| } |
| |
| /** |
| * ice_get_opt_fw_name - return optional firmware file name or NULL |
| * @pf: pointer to the PF instance |
| */ |
| static char *ice_get_opt_fw_name(struct ice_pf *pf) |
| { |
| /* Optional firmware name same as default with additional dash |
| * followed by a EUI-64 identifier (PCIe Device Serial Number) |
| */ |
| struct pci_dev *pdev = pf->pdev; |
| char *opt_fw_filename = NULL; |
| u32 dword; |
| u8 dsn[8]; |
| int pos; |
| |
| /* Determine the name of the optional file using the DSN (two |
| * dwords following the start of the DSN Capability). |
| */ |
| pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN); |
| if (pos) { |
| opt_fw_filename = kzalloc(NAME_MAX, GFP_KERNEL); |
| if (!opt_fw_filename) |
| return NULL; |
| |
| pci_read_config_dword(pdev, pos + 4, &dword); |
| put_unaligned_le32(dword, &dsn[0]); |
| pci_read_config_dword(pdev, pos + 8, &dword); |
| put_unaligned_le32(dword, &dsn[4]); |
| snprintf(opt_fw_filename, NAME_MAX, |
| "%sice-%02x%02x%02x%02x%02x%02x%02x%02x.pkg", |
| ICE_DDP_PKG_PATH, |
| dsn[7], dsn[6], dsn[5], dsn[4], |
| dsn[3], dsn[2], dsn[1], dsn[0]); |
| } |
| |
| return opt_fw_filename; |
| } |
| |
| /** |
| * ice_request_fw - Device initialization routine |
| * @pf: pointer to the PF instance |
| */ |
| static void ice_request_fw(struct ice_pf *pf) |
| { |
| char *opt_fw_filename = ice_get_opt_fw_name(pf); |
| const struct firmware *firmware = NULL; |
| struct device *dev = ice_pf_to_dev(pf); |
| int err = 0; |
| |
| /* optional device-specific DDP (if present) overrides the default DDP |
| * package file. kernel logs a debug message if the file doesn't exist, |
| * and warning messages for other errors. |
| */ |
| if (opt_fw_filename) { |
| err = firmware_request_nowarn(&firmware, opt_fw_filename, dev); |
| if (err) { |
| kfree(opt_fw_filename); |
| goto dflt_pkg_load; |
| } |
| |
| /* request for firmware was successful. Download to device */ |
| ice_load_pkg(firmware, pf); |
| kfree(opt_fw_filename); |
| release_firmware(firmware); |
| return; |
| } |
| |
| dflt_pkg_load: |
| err = request_firmware(&firmware, ICE_DDP_PKG_FILE, dev); |
| if (err) { |
| dev_err(dev, |
| "The DDP package file was not found or could not be read. Entering Safe Mode\n"); |
| return; |
| } |
| |
| /* request for firmware was successful. Download to device */ |
| ice_load_pkg(firmware, pf); |
| release_firmware(firmware); |
| } |
| |
| /** |
| * ice_probe - Device initialization routine |
| * @pdev: PCI device information struct |
| * @ent: entry in ice_pci_tbl |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| static int |
| ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent) |
| { |
| struct device *dev = &pdev->dev; |
| struct ice_pf *pf; |
| struct ice_hw *hw; |
| int err; |
| |
| /* this driver uses devres, see Documentation/driver-api/driver-model/devres.rst */ |
| err = pcim_enable_device(pdev); |
| if (err) |
| return err; |
| |
| err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), pci_name(pdev)); |
| if (err) { |
| dev_err(dev, "BAR0 I/O map error %d\n", err); |
| return err; |
| } |
| |
| pf = devm_kzalloc(dev, sizeof(*pf), GFP_KERNEL); |
| if (!pf) |
| return -ENOMEM; |
| |
| /* set up for high or low DMA */ |
| err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); |
| if (err) |
| err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); |
| if (err) { |
| dev_err(dev, "DMA configuration failed: 0x%x\n", err); |
| return err; |
| } |
| |
| pci_enable_pcie_error_reporting(pdev); |
| pci_set_master(pdev); |
| |
| pf->pdev = pdev; |
| pci_set_drvdata(pdev, pf); |
| set_bit(__ICE_DOWN, pf->state); |
| /* Disable service task until DOWN bit is cleared */ |
| set_bit(__ICE_SERVICE_DIS, pf->state); |
| |
| hw = &pf->hw; |
| hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0]; |
| pci_save_state(pdev); |
| |
| hw->back = pf; |
| hw->vendor_id = pdev->vendor; |
| hw->device_id = pdev->device; |
| pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); |
| hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| hw->subsystem_device_id = pdev->subsystem_device; |
| hw->bus.device = PCI_SLOT(pdev->devfn); |
| hw->bus.func = PCI_FUNC(pdev->devfn); |
| ice_set_ctrlq_len(hw); |
| |
| pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M); |
| |
| #ifndef CONFIG_DYNAMIC_DEBUG |
| if (debug < -1) |
| hw->debug_mask = debug; |
| #endif |
| |
| err = ice_init_hw(hw); |
| if (err) { |
| dev_err(dev, "ice_init_hw failed: %d\n", err); |
| err = -EIO; |
| goto err_exit_unroll; |
| } |
| |
| dev_info(dev, "firmware %d.%d.%d api %d.%d.%d nvm %s build 0x%08x\n", |
| hw->fw_maj_ver, hw->fw_min_ver, hw->fw_patch, |
| hw->api_maj_ver, hw->api_min_ver, hw->api_patch, |
| ice_nvm_version_str(hw), hw->fw_build); |
| |
| ice_request_fw(pf); |
| |
| /* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be |
| * set in pf->state, which will cause ice_is_safe_mode to return |
| * true |
| */ |
| if (ice_is_safe_mode(pf)) { |
| dev_err(dev, |
| "Package download failed. Advanced features disabled - Device now in Safe Mode\n"); |
| /* we already got function/device capabilities but these don't |
| * reflect what the driver needs to do in safe mode. Instead of |
| * adding conditional logic everywhere to ignore these |
| * device/function capabilities, override them. |
| */ |
| ice_set_safe_mode_caps(hw); |
| } |
| |
| err = ice_init_pf(pf); |
| if (err) { |
| dev_err(dev, "ice_init_pf failed: %d\n", err); |
| goto err_init_pf_unroll; |
| } |
| |
| pf->num_alloc_vsi = hw->func_caps.guar_num_vsi; |
| if (!pf->num_alloc_vsi) { |
| err = -EIO; |
| goto err_init_pf_unroll; |
| } |
| |
| pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi), |
| GFP_KERNEL); |
| if (!pf->vsi) { |
| err = -ENOMEM; |
| goto err_init_pf_unroll; |
| } |
| |
| err = ice_init_interrupt_scheme(pf); |
| if (err) { |
| dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err); |
| err = -EIO; |
| goto err_init_interrupt_unroll; |
| } |
| |
| /* Driver is mostly up */ |
| clear_bit(__ICE_DOWN, pf->state); |
| |
| /* In case of MSIX we are going to setup the misc vector right here |
| * to handle admin queue events etc. In case of legacy and MSI |
| * the misc functionality and queue processing is combined in |
| * the same vector and that gets setup at open. |
| */ |
| err = ice_req_irq_msix_misc(pf); |
| if (err) { |
| dev_err(dev, "setup of misc vector failed: %d\n", err); |
| goto err_init_interrupt_unroll; |
| } |
| |
| /* create switch struct for the switch element created by FW on boot */ |
| pf->first_sw = devm_kzalloc(dev, sizeof(*pf->first_sw), GFP_KERNEL); |
| if (!pf->first_sw) { |
| err = -ENOMEM; |
| goto err_msix_misc_unroll; |
| } |
| |
| if (hw->evb_veb) |
| pf->first_sw->bridge_mode = BRIDGE_MODE_VEB; |
| else |
| pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA; |
| |
| pf->first_sw->pf = pf; |
| |
| /* record the sw_id available for later use */ |
| pf->first_sw->sw_id = hw->port_info->sw_id; |
| |
| err = ice_setup_pf_sw(pf); |
| if (err) { |
| dev_err(dev, "probe failed due to setup PF switch: %d\n", err); |
| goto err_alloc_sw_unroll; |
| } |
| |
| clear_bit(__ICE_SERVICE_DIS, pf->state); |
| |
| /* tell the firmware we are up */ |
| err = ice_send_version(pf); |
| if (err) { |
| dev_err(dev, |
| "probe failed sending driver version %s. error: %d\n", |
| ice_drv_ver, err); |
| goto err_alloc_sw_unroll; |
| } |
| |
| /* since everything is good, start the service timer */ |
| mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period)); |
| |
| err = ice_init_link_events(pf->hw.port_info); |
| if (err) { |
| dev_err(dev, "ice_init_link_events failed: %d\n", err); |
| goto err_alloc_sw_unroll; |
| } |
| |
| ice_verify_cacheline_size(pf); |
| |
| /* If no DDP driven features have to be setup, return here */ |
| if (ice_is_safe_mode(pf)) |
| return 0; |
| |
| /* initialize DDP driven features */ |
| |
| /* Note: DCB init failure is non-fatal to load */ |
| if (ice_init_pf_dcb(pf, false)) { |
| clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags); |
| clear_bit(ICE_FLAG_DCB_ENA, pf->flags); |
| } else { |
| ice_cfg_lldp_mib_change(&pf->hw, true); |
| } |
| |
| /* print PCI link speed and width */ |
| pcie_print_link_status(pf->pdev); |
| |
| return 0; |
| |
| err_alloc_sw_unroll: |
| set_bit(__ICE_SERVICE_DIS, pf->state); |
| set_bit(__ICE_DOWN, pf->state); |
| devm_kfree(dev, pf->first_sw); |
| err_msix_misc_unroll: |
| ice_free_irq_msix_misc(pf); |
| err_init_interrupt_unroll: |
| ice_clear_interrupt_scheme(pf); |
| devm_kfree(dev, pf->vsi); |
| err_init_pf_unroll: |
| ice_deinit_pf(pf); |
| ice_deinit_hw(hw); |
| err_exit_unroll: |
| pci_disable_pcie_error_reporting(pdev); |
| return err; |
| } |
| |
| /** |
| * ice_remove - Device removal routine |
| * @pdev: PCI device information struct |
| */ |
| static void ice_remove(struct pci_dev *pdev) |
| { |
| struct ice_pf *pf = pci_get_drvdata(pdev); |
| int i; |
| |
| if (!pf) |
| return; |
| |
| for (i = 0; i < ICE_MAX_RESET_WAIT; i++) { |
| if (!ice_is_reset_in_progress(pf->state)) |
| break; |
| msleep(100); |
| } |
| |
| set_bit(__ICE_DOWN, pf->state); |
| ice_service_task_stop(pf); |
| |
| if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) |
| ice_free_vfs(pf); |
| ice_vsi_release_all(pf); |
| ice_free_irq_msix_misc(pf); |
| ice_for_each_vsi(pf, i) { |
| if (!pf->vsi[i]) |
| continue; |
| ice_vsi_free_q_vectors(pf->vsi[i]); |
| } |
| ice_deinit_pf(pf); |
| ice_deinit_hw(&pf->hw); |
| /* Issue a PFR as part of the prescribed driver unload flow. Do not |
| * do it via ice_schedule_reset() since there is no need to rebuild |
| * and the service task is already stopped. |
| */ |
| ice_reset(&pf->hw, ICE_RESET_PFR); |
| pci_wait_for_pending_transaction(pdev); |
| ice_clear_interrupt_scheme(pf); |
| pci_disable_pcie_error_reporting(pdev); |
| } |
| |
| /** |
| * ice_pci_err_detected - warning that PCI error has been detected |
| * @pdev: PCI device information struct |
| * @err: the type of PCI error |
| * |
| * Called to warn that something happened on the PCI bus and the error handling |
| * is in progress. Allows the driver to gracefully prepare/handle PCI errors. |
| */ |
| static pci_ers_result_t |
| ice_pci_err_detected(struct pci_dev *pdev, enum pci_channel_state err) |
| { |
| struct ice_pf *pf = pci_get_drvdata(pdev); |
| |
| if (!pf) { |
| dev_err(&pdev->dev, "%s: unrecoverable device error %d\n", |
| __func__, err); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| if (!test_bit(__ICE_SUSPENDED, pf->state)) { |
| ice_service_task_stop(pf); |
| |
| if (!test_bit(__ICE_PREPARED_FOR_RESET, pf->state)) { |
| set_bit(__ICE_PFR_REQ, pf->state); |
| ice_prepare_for_reset(pf); |
| } |
| } |
| |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| /** |
| * ice_pci_err_slot_reset - a PCI slot reset has just happened |
| * @pdev: PCI device information struct |
| * |
| * Called to determine if the driver can recover from the PCI slot reset by |
| * using a register read to determine if the device is recoverable. |
| */ |
| static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev) |
| { |
| struct ice_pf *pf = pci_get_drvdata(pdev); |
| pci_ers_result_t result; |
| int err; |
| u32 reg; |
| |
| err = pci_enable_device_mem(pdev); |
| if (err) { |
| dev_err(&pdev->dev, |
| "Cannot re-enable PCI device after reset, error %d\n", |
| err); |
| result = PCI_ERS_RESULT_DISCONNECT; |
| } else { |
| pci_set_master(pdev); |
| pci_restore_state(pdev); |
| pci_save_state(pdev); |
| pci_wake_from_d3(pdev, false); |
| |
| /* Check for life */ |
| reg = rd32(&pf->hw, GLGEN_RTRIG); |
| if (!reg) |
| result = PCI_ERS_RESULT_RECOVERED; |
| else |
| result = PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| err = pci_cleanup_aer_uncorrect_error_status(pdev); |
| if (err) |
| dev_dbg(&pdev->dev, |
| "pci_cleanup_aer_uncorrect_error_status failed, error %d\n", |
| err); |
| /* non-fatal, continue */ |
| |
| return result; |
| } |
| |
| /** |
| * ice_pci_err_resume - restart operations after PCI error recovery |
| * @pdev: PCI device information struct |
| * |
| * Called to allow the driver to bring things back up after PCI error and/or |
| * reset recovery have finished |
| */ |
| static void ice_pci_err_resume(struct pci_dev *pdev) |
| { |
| struct ice_pf *pf = pci_get_drvdata(pdev); |
| |
| if (!pf) { |
| dev_err(&pdev->dev, |
| "%s failed, device is unrecoverable\n", __func__); |
| return; |
| } |
| |
| if (test_bit(__ICE_SUSPENDED, pf->state)) { |
| dev_dbg(&pdev->dev, "%s failed to resume normal operations!\n", |
| __func__); |
| return; |
| } |
| |
| ice_do_reset(pf, ICE_RESET_PFR); |
| ice_service_task_restart(pf); |
| mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period)); |
| } |
| |
| /** |
| * ice_pci_err_reset_prepare - prepare device driver for PCI reset |
| * @pdev: PCI device information struct |
| */ |
| static void ice_pci_err_reset_prepare(struct pci_dev *pdev) |
| { |
| struct ice_pf *pf = pci_get_drvdata(pdev); |
| |
| if (!test_bit(__ICE_SUSPENDED, pf->state)) { |
| ice_service_task_stop(pf); |
| |
| if (!test_bit(__ICE_PREPARED_FOR_RESET, pf->state)) { |
| set_bit(__ICE_PFR_REQ, pf->state); |
| ice_prepare_for_reset(pf); |
| } |
| } |
| } |
| |
| /** |
| * ice_pci_err_reset_done - PCI reset done, device driver reset can begin |
| * @pdev: PCI device information struct |
| */ |
| static void ice_pci_err_reset_done(struct pci_dev *pdev) |
| { |
| ice_pci_err_resume(pdev); |
| } |
| |
| /* ice_pci_tbl - PCI Device ID Table |
| * |
| * Wildcard entries (PCI_ANY_ID) should come last |
| * Last entry must be all 0s |
| * |
| * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, |
| * Class, Class Mask, private data (not used) } |
| */ |
| static const struct pci_device_id ice_pci_tbl[] = { |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_BACKPLANE), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_QSFP), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SFP), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_10G_BASE_T), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SGMII), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822X_BACKPLANE), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SFP), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_10G_BASE_T), 0 }, |
| { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SGMII), 0 }, |
| /* required last entry */ |
| { 0, } |
| }; |
| MODULE_DEVICE_TABLE(pci, ice_pci_tbl); |
| |
| static const struct pci_error_handlers ice_pci_err_handler = { |
| .error_detected = ice_pci_err_detected, |
| .slot_reset = ice_pci_err_slot_reset, |
| .reset_prepare = ice_pci_err_reset_prepare, |
| .reset_done = ice_pci_err_reset_done, |
| .resume = ice_pci_err_resume |
| }; |
| |
| static struct pci_driver ice_driver = { |
| .name = KBUILD_MODNAME, |
| .id_table = ice_pci_tbl, |
| .probe = ice_probe, |
| .remove = ice_remove, |
| .sriov_configure = ice_sriov_configure, |
| .err_handler = &ice_pci_err_handler |
| }; |
| |
| /** |
| * ice_module_init - Driver registration routine |
| * |
| * ice_module_init is the first routine called when the driver is |
| * loaded. All it does is register with the PCI subsystem. |
| */ |
| static int __init ice_module_init(void) |
| { |
| int status; |
| |
| pr_info("%s - version %s\n", ice_driver_string, ice_drv_ver); |
| pr_info("%s\n", ice_copyright); |
| |
| ice_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, KBUILD_MODNAME); |
| if (!ice_wq) { |
| pr_err("Failed to create workqueue\n"); |
| return -ENOMEM; |
| } |
| |
| status = pci_register_driver(&ice_driver); |
| if (status) { |
| pr_err("failed to register PCI driver, err %d\n", status); |
| destroy_workqueue(ice_wq); |
| } |
| |
| return status; |
| } |
| module_init(ice_module_init); |
| |
| /** |
| * ice_module_exit - Driver exit cleanup routine |
| * |
| * ice_module_exit is called just before the driver is removed |
| * from memory. |
| */ |
| static void __exit ice_module_exit(void) |
| { |
| pci_unregister_driver(&ice_driver); |
| destroy_workqueue(ice_wq); |
| pr_info("module unloaded\n"); |
| } |
| module_exit(ice_module_exit); |
| |
| /** |
| * ice_set_mac_address - NDO callback to set MAC address |
| * @netdev: network interface device structure |
| * @pi: pointer to an address structure |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| static int ice_set_mac_address(struct net_device *netdev, void *pi) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| struct sockaddr *addr = pi; |
| enum ice_status status; |
| u8 flags = 0; |
| int err = 0; |
| u8 *mac; |
| |
| mac = (u8 *)addr->sa_data; |
| |
| if (!is_valid_ether_addr(mac)) |
| return -EADDRNOTAVAIL; |
| |
| if (ether_addr_equal(netdev->dev_addr, mac)) { |
| netdev_warn(netdev, "already using mac %pM\n", mac); |
| return 0; |
| } |
| |
| if (test_bit(__ICE_DOWN, pf->state) || |
| ice_is_reset_in_progress(pf->state)) { |
| netdev_err(netdev, "can't set mac %pM. device not ready\n", |
| mac); |
| return -EBUSY; |
| } |
| |
| /* When we change the MAC address we also have to change the MAC address |
| * based filter rules that were created previously for the old MAC |
| * address. So first, we remove the old filter rule using ice_remove_mac |
| * and then create a new filter rule using ice_add_mac via |
| * ice_vsi_cfg_mac_fltr function call for both add and/or remove |
| * filters. |
| */ |
| status = ice_vsi_cfg_mac_fltr(vsi, netdev->dev_addr, false); |
| if (status) { |
| err = -EADDRNOTAVAIL; |
| goto err_update_filters; |
| } |
| |
| status = ice_vsi_cfg_mac_fltr(vsi, mac, true); |
| if (status) { |
| err = -EADDRNOTAVAIL; |
| goto err_update_filters; |
| } |
| |
| err_update_filters: |
| if (err) { |
| netdev_err(netdev, "can't set MAC %pM. filter update failed\n", |
| mac); |
| return err; |
| } |
| |
| /* change the netdev's MAC address */ |
| memcpy(netdev->dev_addr, mac, netdev->addr_len); |
| netdev_dbg(vsi->netdev, "updated MAC address to %pM\n", |
| netdev->dev_addr); |
| |
| /* write new MAC address to the firmware */ |
| flags = ICE_AQC_MAN_MAC_UPDATE_LAA_WOL; |
| status = ice_aq_manage_mac_write(hw, mac, flags, NULL); |
| if (status) { |
| netdev_err(netdev, "can't set MAC %pM. write to firmware failed error %d\n", |
| mac, status); |
| } |
| return 0; |
| } |
| |
| /** |
| * ice_set_rx_mode - NDO callback to set the netdev filters |
| * @netdev: network interface device structure |
| */ |
| static void ice_set_rx_mode(struct net_device *netdev) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| |
| if (!vsi) |
| return; |
| |
| /* Set the flags to synchronize filters |
| * ndo_set_rx_mode may be triggered even without a change in netdev |
| * flags |
| */ |
| set_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags); |
| set_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags); |
| set_bit(ICE_FLAG_FLTR_SYNC, vsi->back->flags); |
| |
| /* schedule our worker thread which will take care of |
| * applying the new filter changes |
| */ |
| ice_service_task_schedule(vsi->back); |
| } |
| |
| /** |
| * ice_set_tx_maxrate - NDO callback to set the maximum per-queue bitrate |
| * @netdev: network interface device structure |
| * @queue_index: Queue ID |
| * @maxrate: maximum bandwidth in Mbps |
| */ |
| static int |
| ice_set_tx_maxrate(struct net_device *netdev, int queue_index, u32 maxrate) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| enum ice_status status; |
| u16 q_handle; |
| u8 tc; |
| |
| /* Validate maxrate requested is within permitted range */ |
| if (maxrate && (maxrate > (ICE_SCHED_MAX_BW / 1000))) { |
| netdev_err(netdev, |
| "Invalid max rate %d specified for the queue %d\n", |
| maxrate, queue_index); |
| return -EINVAL; |
| } |
| |
| q_handle = vsi->tx_rings[queue_index]->q_handle; |
| tc = ice_dcb_get_tc(vsi, queue_index); |
| |
| /* Set BW back to default, when user set maxrate to 0 */ |
| if (!maxrate) |
| status = ice_cfg_q_bw_dflt_lmt(vsi->port_info, vsi->idx, tc, |
| q_handle, ICE_MAX_BW); |
| else |
| status = ice_cfg_q_bw_lmt(vsi->port_info, vsi->idx, tc, |
| q_handle, ICE_MAX_BW, maxrate * 1000); |
| if (status) { |
| netdev_err(netdev, |
| "Unable to set Tx max rate, error %d\n", status); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_fdb_add - add an entry to the hardware database |
| * @ndm: the input from the stack |
| * @tb: pointer to array of nladdr (unused) |
| * @dev: the net device pointer |
| * @addr: the MAC address entry being added |
| * @vid: VLAN ID |
| * @flags: instructions from stack about fdb operation |
| * @extack: netlink extended ack |
| */ |
| static int |
| ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[], |
| struct net_device *dev, const unsigned char *addr, u16 vid, |
| u16 flags, struct netlink_ext_ack __always_unused *extack) |
| { |
| int err; |
| |
| if (vid) { |
| netdev_err(dev, "VLANs aren't supported yet for dev_uc|mc_add()\n"); |
| return -EINVAL; |
| } |
| if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) { |
| netdev_err(dev, "FDB only supports static addresses\n"); |
| return -EINVAL; |
| } |
| |
| if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) |
| err = dev_uc_add_excl(dev, addr); |
| else if (is_multicast_ether_addr(addr)) |
| err = dev_mc_add_excl(dev, addr); |
| else |
| err = -EINVAL; |
| |
| /* Only return duplicate errors if NLM_F_EXCL is set */ |
| if (err == -EEXIST && !(flags & NLM_F_EXCL)) |
| err = 0; |
| |
| return err; |
| } |
| |
| /** |
| * ice_fdb_del - delete an entry from the hardware database |
| * @ndm: the input from the stack |
| * @tb: pointer to array of nladdr (unused) |
| * @dev: the net device pointer |
| * @addr: the MAC address entry being added |
| * @vid: VLAN ID |
| */ |
| static int |
| ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[], |
| struct net_device *dev, const unsigned char *addr, |
| __always_unused u16 vid) |
| { |
| int err; |
| |
| if (ndm->ndm_state & NUD_PERMANENT) { |
| netdev_err(dev, "FDB only supports static addresses\n"); |
| return -EINVAL; |
| } |
| |
| if (is_unicast_ether_addr(addr)) |
| err = dev_uc_del(dev, addr); |
| else if (is_multicast_ether_addr(addr)) |
| err = dev_mc_del(dev, addr); |
| else |
| err = -EINVAL; |
| |
| return err; |
| } |
| |
| /** |
| * ice_set_features - set the netdev feature flags |
| * @netdev: ptr to the netdev being adjusted |
| * @features: the feature set that the stack is suggesting |
| */ |
| static int |
| ice_set_features(struct net_device *netdev, netdev_features_t features) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_pf *pf = vsi->back; |
| int ret = 0; |
| |
| /* Don't set any netdev advanced features with device in Safe Mode */ |
| if (ice_is_safe_mode(vsi->back)) { |
| dev_err(&vsi->back->pdev->dev, |
| "Device is in Safe Mode - not enabling advanced netdev features\n"); |
| return ret; |
| } |
| |
| /* Do not change setting during reset */ |
| if (ice_is_reset_in_progress(pf->state)) { |
| dev_err(&vsi->back->pdev->dev, |
| "Device is resetting, changing advanced netdev features temporarily unavailable.\n"); |
| return -EBUSY; |
| } |
| |
| /* Multiple features can be changed in one call so keep features in |
| * separate if/else statements to guarantee each feature is checked |
| */ |
| if (features & NETIF_F_RXHASH && !(netdev->features & NETIF_F_RXHASH)) |
| ret = ice_vsi_manage_rss_lut(vsi, true); |
| else if (!(features & NETIF_F_RXHASH) && |
| netdev->features & NETIF_F_RXHASH) |
| ret = ice_vsi_manage_rss_lut(vsi, false); |
| |
| if ((features & NETIF_F_HW_VLAN_CTAG_RX) && |
| !(netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) |
| ret = ice_vsi_manage_vlan_stripping(vsi, true); |
| else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) && |
| (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) |
| ret = ice_vsi_manage_vlan_stripping(vsi, false); |
| |
| if ((features & NETIF_F_HW_VLAN_CTAG_TX) && |
| !(netdev->features & NETIF_F_HW_VLAN_CTAG_TX)) |
| ret = ice_vsi_manage_vlan_insertion(vsi); |
| else if (!(features & NETIF_F_HW_VLAN_CTAG_TX) && |
| (netdev->features & NETIF_F_HW_VLAN_CTAG_TX)) |
| ret = ice_vsi_manage_vlan_insertion(vsi); |
| |
| if ((features & NETIF_F_HW_VLAN_CTAG_FILTER) && |
| !(netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) |
| ret = ice_cfg_vlan_pruning(vsi, true, false); |
| else if (!(features & NETIF_F_HW_VLAN_CTAG_FILTER) && |
| (netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) |
| ret = ice_cfg_vlan_pruning(vsi, false, false); |
| |
| return ret; |
| } |
| |
| /** |
| * ice_vsi_vlan_setup - Setup VLAN offload properties on a VSI |
| * @vsi: VSI to setup VLAN properties for |
| */ |
| static int ice_vsi_vlan_setup(struct ice_vsi *vsi) |
| { |
| int ret = 0; |
| |
| if (vsi->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
| ret = ice_vsi_manage_vlan_stripping(vsi, true); |
| if (vsi->netdev->features & NETIF_F_HW_VLAN_CTAG_TX) |
| ret = ice_vsi_manage_vlan_insertion(vsi); |
| |
| return ret; |
| } |
| |
| /** |
| * ice_vsi_cfg - Setup the VSI |
| * @vsi: the VSI being configured |
| * |
| * Return 0 on success and negative value on error |
| */ |
| int ice_vsi_cfg(struct ice_vsi *vsi) |
| { |
| int err; |
| |
| if (vsi->netdev) { |
| ice_set_rx_mode(vsi->netdev); |
| |
| err = ice_vsi_vlan_setup(vsi); |
| |
| if (err) |
| return err; |
| } |
| ice_vsi_cfg_dcb_rings(vsi); |
| |
| err = ice_vsi_cfg_lan_txqs(vsi); |
| if (!err && ice_is_xdp_ena_vsi(vsi)) |
| err = ice_vsi_cfg_xdp_txqs(vsi); |
| if (!err) |
| err = ice_vsi_cfg_rxqs(vsi); |
| |
| return err; |
| } |
| |
| /** |
| * ice_napi_enable_all - Enable NAPI for all q_vectors in the VSI |
| * @vsi: the VSI being configured |
| */ |
| static void ice_napi_enable_all(struct ice_vsi *vsi) |
| { |
| int q_idx; |
| |
| if (!vsi->netdev) |
| return; |
| |
| ice_for_each_q_vector(vsi, q_idx) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; |
| |
| if (q_vector->rx.ring || q_vector->tx.ring) |
| napi_enable(&q_vector->napi); |
| } |
| } |
| |
| /** |
| * ice_up_complete - Finish the last steps of bringing up a connection |
| * @vsi: The VSI being configured |
| * |
| * Return 0 on success and negative value on error |
| */ |
| static int ice_up_complete(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| int err; |
| |
| ice_vsi_cfg_msix(vsi); |
| |
| /* Enable only Rx rings, Tx rings were enabled by the FW when the |
| * Tx queue group list was configured and the context bits were |
| * programmed using ice_vsi_cfg_txqs |
| */ |
| err = ice_vsi_start_rx_rings(vsi); |
| if (err) |
| return err; |
| |
| clear_bit(__ICE_DOWN, vsi->state); |
| ice_napi_enable_all(vsi); |
| ice_vsi_ena_irq(vsi); |
| |
| if (vsi->port_info && |
| (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) && |
| vsi->netdev) { |
| ice_print_link_msg(vsi, true); |
| netif_tx_start_all_queues(vsi->netdev); |
| netif_carrier_on(vsi->netdev); |
| } |
| |
| ice_service_task_schedule(pf); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_up - Bring the connection back up after being down |
| * @vsi: VSI being configured |
| */ |
| int ice_up(struct ice_vsi *vsi) |
| { |
| int err; |
| |
| err = ice_vsi_cfg(vsi); |
| if (!err) |
| err = ice_up_complete(vsi); |
| |
| return err; |
| } |
| |
| /** |
| * ice_fetch_u64_stats_per_ring - get packets and bytes stats per ring |
| * @ring: Tx or Rx ring to read stats from |
| * @pkts: packets stats counter |
| * @bytes: bytes stats counter |
| * |
| * This function fetches stats from the ring considering the atomic operations |
| * that needs to be performed to read u64 values in 32 bit machine. |
| */ |
| static void |
| ice_fetch_u64_stats_per_ring(struct ice_ring *ring, u64 *pkts, u64 *bytes) |
| { |
| unsigned int start; |
| *pkts = 0; |
| *bytes = 0; |
| |
| if (!ring) |
| return; |
| do { |
| start = u64_stats_fetch_begin_irq(&ring->syncp); |
| *pkts = ring->stats.pkts; |
| *bytes = ring->stats.bytes; |
| } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
| } |
| |
| /** |
| * ice_update_vsi_ring_stats - Update VSI stats counters |
| * @vsi: the VSI to be updated |
| */ |
| static void ice_update_vsi_ring_stats(struct ice_vsi *vsi) |
| { |
| struct rtnl_link_stats64 *vsi_stats = &vsi->net_stats; |
| struct ice_ring *ring; |
| u64 pkts, bytes; |
| int i; |
| |
| /* reset netdev stats */ |
| vsi_stats->tx_packets = 0; |
| vsi_stats->tx_bytes = 0; |
| vsi_stats->rx_packets = 0; |
| vsi_stats->rx_bytes = 0; |
| |
| /* reset non-netdev (extended) stats */ |
| vsi->tx_restart = 0; |
| vsi->tx_busy = 0; |
| vsi->tx_linearize = 0; |
| vsi->rx_buf_failed = 0; |
| vsi->rx_page_failed = 0; |
| |
| rcu_read_lock(); |
| |
| /* update Tx rings counters */ |
| ice_for_each_txq(vsi, i) { |
| ring = READ_ONCE(vsi->tx_rings[i]); |
| ice_fetch_u64_stats_per_ring(ring, &pkts, &bytes); |
| vsi_stats->tx_packets += pkts; |
| vsi_stats->tx_bytes += bytes; |
| vsi->tx_restart += ring->tx_stats.restart_q; |
| vsi->tx_busy += ring->tx_stats.tx_busy; |
| vsi->tx_linearize += ring->tx_stats.tx_linearize; |
| } |
| |
| /* update Rx rings counters */ |
| ice_for_each_rxq(vsi, i) { |
| ring = READ_ONCE(vsi->rx_rings[i]); |
| ice_fetch_u64_stats_per_ring(ring, &pkts, &bytes); |
| vsi_stats->rx_packets += pkts; |
| vsi_stats->rx_bytes += bytes; |
| vsi->rx_buf_failed += ring->rx_stats.alloc_buf_failed; |
| vsi->rx_page_failed += ring->rx_stats.alloc_page_failed; |
| } |
| |
| rcu_read_unlock(); |
| } |
| |
| /** |
| * ice_update_vsi_stats - Update VSI stats counters |
| * @vsi: the VSI to be updated |
| */ |
| void ice_update_vsi_stats(struct ice_vsi *vsi) |
| { |
| struct rtnl_link_stats64 *cur_ns = &vsi->net_stats; |
| struct ice_eth_stats *cur_es = &vsi->eth_stats; |
| struct ice_pf *pf = vsi->back; |
| |
| if (test_bit(__ICE_DOWN, vsi->state) || |
| test_bit(__ICE_CFG_BUSY, pf->state)) |
| return; |
| |
| /* get stats as recorded by Tx/Rx rings */ |
| ice_update_vsi_ring_stats(vsi); |
| |
| /* get VSI stats as recorded by the hardware */ |
| ice_update_eth_stats(vsi); |
| |
| cur_ns->tx_errors = cur_es->tx_errors; |
| cur_ns->rx_dropped = cur_es->rx_discards; |
| cur_ns->tx_dropped = cur_es->tx_discards; |
| cur_ns->multicast = cur_es->rx_multicast; |
| |
| /* update some more netdev stats if this is main VSI */ |
| if (vsi->type == ICE_VSI_PF) { |
| cur_ns->rx_crc_errors = pf->stats.crc_errors; |
| cur_ns->rx_errors = pf->stats.crc_errors + |
| pf->stats.illegal_bytes; |
| cur_ns->rx_length_errors = pf->stats.rx_len_errors; |
| /* record drops from the port level */ |
| cur_ns->rx_missed_errors = pf->stats.eth.rx_discards; |
| } |
| } |
| |
| /** |
| * ice_update_pf_stats - Update PF port stats counters |
| * @pf: PF whose stats needs to be updated |
| */ |
| void ice_update_pf_stats(struct ice_pf *pf) |
| { |
| struct ice_hw_port_stats *prev_ps, *cur_ps; |
| struct ice_hw *hw = &pf->hw; |
| u8 port; |
| |
| port = hw->port_info->lport; |
| prev_ps = &pf->stats_prev; |
| cur_ps = &pf->stats; |
| |
| ice_stat_update40(hw, GLPRT_GORCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.rx_bytes, |
| &cur_ps->eth.rx_bytes); |
| |
| ice_stat_update40(hw, GLPRT_UPRCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.rx_unicast, |
| &cur_ps->eth.rx_unicast); |
| |
| ice_stat_update40(hw, GLPRT_MPRCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.rx_multicast, |
| &cur_ps->eth.rx_multicast); |
| |
| ice_stat_update40(hw, GLPRT_BPRCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.rx_broadcast, |
| &cur_ps->eth.rx_broadcast); |
| |
| ice_stat_update32(hw, PRTRPB_RDPC, pf->stat_prev_loaded, |
| &prev_ps->eth.rx_discards, |
| &cur_ps->eth.rx_discards); |
| |
| ice_stat_update40(hw, GLPRT_GOTCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.tx_bytes, |
| &cur_ps->eth.tx_bytes); |
| |
| ice_stat_update40(hw, GLPRT_UPTCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.tx_unicast, |
| &cur_ps->eth.tx_unicast); |
| |
| ice_stat_update40(hw, GLPRT_MPTCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.tx_multicast, |
| &cur_ps->eth.tx_multicast); |
| |
| ice_stat_update40(hw, GLPRT_BPTCL(port), pf->stat_prev_loaded, |
| &prev_ps->eth.tx_broadcast, |
| &cur_ps->eth.tx_broadcast); |
| |
| ice_stat_update32(hw, GLPRT_TDOLD(port), pf->stat_prev_loaded, |
| &prev_ps->tx_dropped_link_down, |
| &cur_ps->tx_dropped_link_down); |
| |
| ice_stat_update40(hw, GLPRT_PRC64L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_64, &cur_ps->rx_size_64); |
| |
| ice_stat_update40(hw, GLPRT_PRC127L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_127, &cur_ps->rx_size_127); |
| |
| ice_stat_update40(hw, GLPRT_PRC255L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_255, &cur_ps->rx_size_255); |
| |
| ice_stat_update40(hw, GLPRT_PRC511L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_511, &cur_ps->rx_size_511); |
| |
| ice_stat_update40(hw, GLPRT_PRC1023L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_1023, &cur_ps->rx_size_1023); |
| |
| ice_stat_update40(hw, GLPRT_PRC1522L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_1522, &cur_ps->rx_size_1522); |
| |
| ice_stat_update40(hw, GLPRT_PRC9522L(port), pf->stat_prev_loaded, |
| &prev_ps->rx_size_big, &cur_ps->rx_size_big); |
| |
| ice_stat_update40(hw, GLPRT_PTC64L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_64, &cur_ps->tx_size_64); |
| |
| ice_stat_update40(hw, GLPRT_PTC127L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_127, &cur_ps->tx_size_127); |
| |
| ice_stat_update40(hw, GLPRT_PTC255L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_255, &cur_ps->tx_size_255); |
| |
| ice_stat_update40(hw, GLPRT_PTC511L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_511, &cur_ps->tx_size_511); |
| |
| ice_stat_update40(hw, GLPRT_PTC1023L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_1023, &cur_ps->tx_size_1023); |
| |
| ice_stat_update40(hw, GLPRT_PTC1522L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_1522, &cur_ps->tx_size_1522); |
| |
| ice_stat_update40(hw, GLPRT_PTC9522L(port), pf->stat_prev_loaded, |
| &prev_ps->tx_size_big, &cur_ps->tx_size_big); |
| |
| ice_stat_update32(hw, GLPRT_LXONRXC(port), pf->stat_prev_loaded, |
| &prev_ps->link_xon_rx, &cur_ps->link_xon_rx); |
| |
| ice_stat_update32(hw, GLPRT_LXOFFRXC(port), pf->stat_prev_loaded, |
| &prev_ps->link_xoff_rx, &cur_ps->link_xoff_rx); |
| |
| ice_stat_update32(hw, GLPRT_LXONTXC(port), pf->stat_prev_loaded, |
| &prev_ps->link_xon_tx, &cur_ps->link_xon_tx); |
| |
| ice_stat_update32(hw, GLPRT_LXOFFTXC(port), pf->stat_prev_loaded, |
| &prev_ps->link_xoff_tx, &cur_ps->link_xoff_tx); |
| |
| ice_update_dcb_stats(pf); |
| |
| ice_stat_update32(hw, GLPRT_CRCERRS(port), pf->stat_prev_loaded, |
| &prev_ps->crc_errors, &cur_ps->crc_errors); |
| |
| ice_stat_update32(hw, GLPRT_ILLERRC(port), pf->stat_prev_loaded, |
| &prev_ps->illegal_bytes, &cur_ps->illegal_bytes); |
| |
| ice_stat_update32(hw, GLPRT_MLFC(port), pf->stat_prev_loaded, |
| &prev_ps->mac_local_faults, |
| &cur_ps->mac_local_faults); |
| |
| ice_stat_update32(hw, GLPRT_MRFC(port), pf->stat_prev_loaded, |
| &prev_ps->mac_remote_faults, |
| &cur_ps->mac_remote_faults); |
| |
| ice_stat_update32(hw, GLPRT_RLEC(port), pf->stat_prev_loaded, |
| &prev_ps->rx_len_errors, &cur_ps->rx_len_errors); |
| |
| ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded, |
| &prev_ps->rx_undersize, &cur_ps->rx_undersize); |
| |
| ice_stat_update32(hw, GLPRT_RFC(port), pf->stat_prev_loaded, |
| &prev_ps->rx_fragments, &cur_ps->rx_fragments); |
| |
| ice_stat_update32(hw, GLPRT_ROC(port), pf->stat_prev_loaded, |
| &prev_ps->rx_oversize, &cur_ps->rx_oversize); |
| |
| ice_stat_update32(hw, GLPRT_RJC(port), pf->stat_prev_loaded, |
| &prev_ps->rx_jabber, &cur_ps->rx_jabber); |
| |
| pf->stat_prev_loaded = true; |
| } |
| |
| /** |
| * ice_get_stats64 - get statistics for network device structure |
| * @netdev: network interface device structure |
| * @stats: main device statistics structure |
| */ |
| static |
| void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct rtnl_link_stats64 *vsi_stats; |
| struct ice_vsi *vsi = np->vsi; |
| |
| vsi_stats = &vsi->net_stats; |
| |
| if (!vsi->num_txq || !vsi->num_rxq) |
| return; |
| |
| /* netdev packet/byte stats come from ring counter. These are obtained |
| * by summing up ring counters (done by ice_update_vsi_ring_stats). |
| * But, only call the update routine and read the registers if VSI is |
| * not down. |
| */ |
| if (!test_bit(__ICE_DOWN, vsi->state)) |
| ice_update_vsi_ring_stats(vsi); |
| stats->tx_packets = vsi_stats->tx_packets; |
| stats->tx_bytes = vsi_stats->tx_bytes; |
| stats->rx_packets = vsi_stats->rx_packets; |
| stats->rx_bytes = vsi_stats->rx_bytes; |
| |
| /* The rest of the stats can be read from the hardware but instead we |
| * just return values that the watchdog task has already obtained from |
| * the hardware. |
| */ |
| stats->multicast = vsi_stats->multicast; |
| stats->tx_errors = vsi_stats->tx_errors; |
| stats->tx_dropped = vsi_stats->tx_dropped; |
| stats->rx_errors = vsi_stats->rx_errors; |
| stats->rx_dropped = vsi_stats->rx_dropped; |
| stats->rx_crc_errors = vsi_stats->rx_crc_errors; |
| stats->rx_length_errors = vsi_stats->rx_length_errors; |
| } |
| |
| /** |
| * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI |
| * @vsi: VSI having NAPI disabled |
| */ |
| static void ice_napi_disable_all(struct ice_vsi *vsi) |
| { |
| int q_idx; |
| |
| if (!vsi->netdev) |
| return; |
| |
| ice_for_each_q_vector(vsi, q_idx) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; |
| |
| if (q_vector->rx.ring || q_vector->tx.ring) |
| napi_disable(&q_vector->napi); |
| } |
| } |
| |
| /** |
| * ice_down - Shutdown the connection |
| * @vsi: The VSI being stopped |
| */ |
| int ice_down(struct ice_vsi *vsi) |
| { |
| int i, tx_err, rx_err, link_err = 0; |
| |
| /* Caller of this function is expected to set the |
| * vsi->state __ICE_DOWN bit |
| */ |
| if (vsi->netdev) { |
| netif_carrier_off(vsi->netdev); |
| netif_tx_disable(vsi->netdev); |
| } |
| |
| ice_vsi_dis_irq(vsi); |
| |
| tx_err = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); |
| if (tx_err) |
| netdev_err(vsi->netdev, |
| "Failed stop Tx rings, VSI %d error %d\n", |
| vsi->vsi_num, tx_err); |
| if (!tx_err && ice_is_xdp_ena_vsi(vsi)) { |
| tx_err = ice_vsi_stop_xdp_tx_rings(vsi); |
| if (tx_err) |
| netdev_err(vsi->netdev, |
| "Failed stop XDP rings, VSI %d error %d\n", |
| vsi->vsi_num, tx_err); |
| } |
| |
| rx_err = ice_vsi_stop_rx_rings(vsi); |
| if (rx_err) |
| netdev_err(vsi->netdev, |
| "Failed stop Rx rings, VSI %d error %d\n", |
| vsi->vsi_num, rx_err); |
| |
| ice_napi_disable_all(vsi); |
| |
| if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) { |
| link_err = ice_force_phys_link_state(vsi, false); |
| if (link_err) |
| netdev_err(vsi->netdev, |
| "Failed to set physical link down, VSI %d error %d\n", |
| vsi->vsi_num, link_err); |
| } |
| |
| ice_for_each_txq(vsi, i) |
| ice_clean_tx_ring(vsi->tx_rings[i]); |
| |
| ice_for_each_rxq(vsi, i) |
| ice_clean_rx_ring(vsi->rx_rings[i]); |
| |
| if (tx_err || rx_err || link_err) { |
| netdev_err(vsi->netdev, |
| "Failed to close VSI 0x%04X on switch 0x%04X\n", |
| vsi->vsi_num, vsi->vsw->sw_id); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources |
| * @vsi: VSI having resources allocated |
| * |
| * Return 0 on success, negative on failure |
| */ |
| int ice_vsi_setup_tx_rings(struct ice_vsi *vsi) |
| { |
| int i, err = 0; |
| |
| if (!vsi->num_txq) { |
| dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Tx queues\n", |
| vsi->vsi_num); |
| return -EINVAL; |
| } |
| |
| ice_for_each_txq(vsi, i) { |
| struct ice_ring *ring = vsi->tx_rings[i]; |
| |
| if (!ring) |
| return -EINVAL; |
| |
| ring->netdev = vsi->netdev; |
| err = ice_setup_tx_ring(ring); |
| if (err) |
| break; |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources |
| * @vsi: VSI having resources allocated |
| * |
| * Return 0 on success, negative on failure |
| */ |
| int ice_vsi_setup_rx_rings(struct ice_vsi *vsi) |
| { |
| int i, err = 0; |
| |
| if (!vsi->num_rxq) { |
| dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Rx queues\n", |
| vsi->vsi_num); |
| return -EINVAL; |
| } |
| |
| ice_for_each_rxq(vsi, i) { |
| struct ice_ring *ring = vsi->rx_rings[i]; |
| |
| if (!ring) |
| return -EINVAL; |
| |
| ring->netdev = vsi->netdev; |
| err = ice_setup_rx_ring(ring); |
| if (err) |
| break; |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ice_vsi_open - Called when a network interface is made active |
| * @vsi: the VSI to open |
| * |
| * Initialization of the VSI |
| * |
| * Returns 0 on success, negative value on error |
| */ |
| static int ice_vsi_open(struct ice_vsi *vsi) |
| { |
| char int_name[ICE_INT_NAME_STR_LEN]; |
| struct ice_pf *pf = vsi->back; |
| int err; |
| |
| /* allocate descriptors */ |
| err = ice_vsi_setup_tx_rings(vsi); |
| if (err) |
| goto err_setup_tx; |
| |
| err = ice_vsi_setup_rx_rings(vsi); |
| if (err) |
| goto err_setup_rx; |
| |
| err = ice_vsi_cfg(vsi); |
| if (err) |
| goto err_setup_rx; |
| |
| snprintf(int_name, sizeof(int_name) - 1, "%s-%s", |
| dev_driver_string(ice_pf_to_dev(pf)), vsi->netdev->name); |
| err = ice_vsi_req_irq_msix(vsi, int_name); |
| if (err) |
| goto err_setup_rx; |
| |
| /* Notify the stack of the actual queue counts. */ |
| err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq); |
| if (err) |
| goto err_set_qs; |
| |
| err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq); |
| if (err) |
| goto err_set_qs; |
| |
| err = ice_up_complete(vsi); |
| if (err) |
| goto err_up_complete; |
| |
| return 0; |
| |
| err_up_complete: |
| ice_down(vsi); |
| err_set_qs: |
| ice_vsi_free_irq(vsi); |
| err_setup_rx: |
| ice_vsi_free_rx_rings(vsi); |
| err_setup_tx: |
| ice_vsi_free_tx_rings(vsi); |
| |
| return err; |
| } |
| |
| /** |
| * ice_vsi_release_all - Delete all VSIs |
| * @pf: PF from which all VSIs are being removed |
| */ |
| static void ice_vsi_release_all(struct ice_pf *pf) |
| { |
| int err, i; |
| |
| if (!pf->vsi) |
| return; |
| |
| ice_for_each_vsi(pf, i) { |
| if (!pf->vsi[i]) |
| continue; |
| |
| err = ice_vsi_release(pf->vsi[i]); |
| if (err) |
| dev_dbg(ice_pf_to_dev(pf), |
| "Failed to release pf->vsi[%d], err %d, vsi_num = %d\n", |
| i, err, pf->vsi[i]->vsi_num); |
| } |
| } |
| |
| /** |
| * ice_vsi_rebuild_by_type - Rebuild VSI of a given type |
| * @pf: pointer to the PF instance |
| * @type: VSI type to rebuild |
| * |
| * Iterates through the pf->vsi array and rebuilds VSIs of the requested type |
| */ |
| static int ice_vsi_rebuild_by_type(struct ice_pf *pf, enum ice_vsi_type type) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| enum ice_status status; |
| int i, err; |
| |
| ice_for_each_vsi(pf, i) { |
| struct ice_vsi *vsi = pf->vsi[i]; |
| |
| if (!vsi || vsi->type != type) |
| continue; |
| |
| /* rebuild the VSI */ |
| err = ice_vsi_rebuild(vsi, true); |
| if (err) { |
| dev_err(dev, |
| "rebuild VSI failed, err %d, VSI index %d, type %s\n", |
| err, vsi->idx, ice_vsi_type_str(type)); |
| return err; |
| } |
| |
| /* replay filters for the VSI */ |
| status = ice_replay_vsi(&pf->hw, vsi->idx); |
| if (status) { |
| dev_err(dev, |
| "replay VSI failed, status %d, VSI index %d, type %s\n", |
| status, vsi->idx, ice_vsi_type_str(type)); |
| return -EIO; |
| } |
| |
| /* Re-map HW VSI number, using VSI handle that has been |
| * previously validated in ice_replay_vsi() call above |
| */ |
| vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx); |
| |
| /* enable the VSI */ |
| err = ice_ena_vsi(vsi, false); |
| if (err) { |
| dev_err(dev, |
| "enable VSI failed, err %d, VSI index %d, type %s\n", |
| err, vsi->idx, ice_vsi_type_str(type)); |
| return err; |
| } |
| |
| dev_info(dev, "VSI rebuilt. VSI index %d, type %s\n", vsi->idx, |
| ice_vsi_type_str(type)); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_update_pf_netdev_link - Update PF netdev link status |
| * @pf: pointer to the PF instance |
| */ |
| static void ice_update_pf_netdev_link(struct ice_pf *pf) |
| { |
| bool link_up; |
| int i; |
| |
| ice_for_each_vsi(pf, i) { |
| struct ice_vsi *vsi = pf->vsi[i]; |
| |
| if (!vsi || vsi->type != ICE_VSI_PF) |
| return; |
| |
| ice_get_link_status(pf->vsi[i]->port_info, &link_up); |
| if (link_up) { |
| netif_carrier_on(pf->vsi[i]->netdev); |
| netif_tx_wake_all_queues(pf->vsi[i]->netdev); |
| } else { |
| netif_carrier_off(pf->vsi[i]->netdev); |
| netif_tx_stop_all_queues(pf->vsi[i]->netdev); |
| } |
| } |
| } |
| |
| /** |
| * ice_rebuild - rebuild after reset |
| * @pf: PF to rebuild |
| * @reset_type: type of reset |
| */ |
| static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| enum ice_status ret; |
| int err; |
| |
| if (test_bit(__ICE_DOWN, pf->state)) |
| goto clear_recovery; |
| |
| dev_dbg(dev, "rebuilding PF after reset_type=%d\n", reset_type); |
| |
| ret = ice_init_all_ctrlq(hw); |
| if (ret) { |
| dev_err(dev, "control queues init failed %d\n", ret); |
| goto err_init_ctrlq; |
| } |
| |
| /* if DDP was previously loaded successfully */ |
| if (!ice_is_safe_mode(pf)) { |
| /* reload the SW DB of filter tables */ |
| if (reset_type == ICE_RESET_PFR) |
| ice_fill_blk_tbls(hw); |
| else |
| /* Reload DDP Package after CORER/GLOBR reset */ |
| ice_load_pkg(NULL, pf); |
| } |
| |
| ret = ice_clear_pf_cfg(hw); |
| if (ret) { |
| dev_err(dev, "clear PF configuration failed %d\n", ret); |
| goto err_init_ctrlq; |
| } |
| |
| if (pf->first_sw->dflt_vsi_ena) |
| dev_info(dev, |
| "Clearing default VSI, re-enable after reset completes\n"); |
| /* clear the default VSI configuration if it exists */ |
| pf->first_sw->dflt_vsi = NULL; |
| pf->first_sw->dflt_vsi_ena = false; |
| |
| ice_clear_pxe_mode(hw); |
| |
| ret = ice_get_caps(hw); |
| if (ret) { |
| dev_err(dev, "ice_get_caps failed %d\n", ret); |
| goto err_init_ctrlq; |
| } |
| |
| err = ice_sched_init_port(hw->port_info); |
| if (err) |
| goto err_sched_init_port; |
| |
| err = ice_update_link_info(hw->port_info); |
| if (err) |
| dev_err(dev, "Get link status error %d\n", err); |
| |
| /* start misc vector */ |
| err = ice_req_irq_msix_misc(pf); |
| if (err) { |
| dev_err(dev, "misc vector setup failed: %d\n", err); |
| goto err_sched_init_port; |
| } |
| |
| if (test_bit(ICE_FLAG_DCB_ENA, pf->flags)) |
| ice_dcb_rebuild(pf); |
| |
| /* rebuild PF VSI */ |
| err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF); |
| if (err) { |
| dev_err(dev, "PF VSI rebuild failed: %d\n", err); |
| goto err_vsi_rebuild; |
| } |
| |
| if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) { |
| err = ice_vsi_rebuild_by_type(pf, ICE_VSI_VF); |
| if (err) { |
| dev_err(dev, "VF VSI rebuild failed: %d\n", err); |
| goto err_vsi_rebuild; |
| } |
| } |
| |
| ice_update_pf_netdev_link(pf); |
| |
| /* tell the firmware we are up */ |
| ret = ice_send_version(pf); |
| if (ret) { |
| dev_err(dev, |
| "Rebuild failed due to error sending driver version: %d\n", |
| ret); |
| goto err_vsi_rebuild; |
| } |
| |
| ice_replay_post(hw); |
| |
| /* if we get here, reset flow is successful */ |
| clear_bit(__ICE_RESET_FAILED, pf->state); |
| return; |
| |
| err_vsi_rebuild: |
| err_sched_init_port: |
| ice_sched_cleanup_all(hw); |
| err_init_ctrlq: |
| ice_shutdown_all_ctrlq(hw); |
| set_bit(__ICE_RESET_FAILED, pf->state); |
| clear_recovery: |
| /* set this bit in PF state to control service task scheduling */ |
| set_bit(__ICE_NEEDS_RESTART, pf->state); |
| dev_err(dev, "Rebuild failed, unload and reload driver\n"); |
| } |
| |
| /** |
| * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP |
| * @vsi: Pointer to VSI structure |
| */ |
| static int ice_max_xdp_frame_size(struct ice_vsi *vsi) |
| { |
| if (PAGE_SIZE >= 8192 || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) |
| return ICE_RXBUF_2048 - XDP_PACKET_HEADROOM; |
| else |
| return ICE_RXBUF_3072; |
| } |
| |
| /** |
| * ice_change_mtu - NDO callback to change the MTU |
| * @netdev: network interface device structure |
| * @new_mtu: new value for maximum frame size |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| static int ice_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_pf *pf = vsi->back; |
| u8 count = 0; |
| |
| if (new_mtu == netdev->mtu) { |
| netdev_warn(netdev, "MTU is already %u\n", netdev->mtu); |
| return 0; |
| } |
| |
| if (ice_is_xdp_ena_vsi(vsi)) { |
| int frame_size = ice_max_xdp_frame_size(vsi); |
| |
| if (new_mtu + ICE_ETH_PKT_HDR_PAD > frame_size) { |
| netdev_err(netdev, "max MTU for XDP usage is %d\n", |
| frame_size - ICE_ETH_PKT_HDR_PAD); |
| return -EINVAL; |
| } |
| } |
| |
| if (new_mtu < netdev->min_mtu) { |
| netdev_err(netdev, "new MTU invalid. min_mtu is %d\n", |
| netdev->min_mtu); |
| return -EINVAL; |
| } else if (new_mtu > netdev->max_mtu) { |
| netdev_err(netdev, "new MTU invalid. max_mtu is %d\n", |
| netdev->min_mtu); |
| return -EINVAL; |
| } |
| /* if a reset is in progress, wait for some time for it to complete */ |
| do { |
| if (ice_is_reset_in_progress(pf->state)) { |
| count++; |
| usleep_range(1000, 2000); |
| } else { |
| break; |
| } |
| |
| } while (count < 100); |
| |
| if (count == 100) { |
| netdev_err(netdev, "can't change MTU. Device is busy\n"); |
| return -EBUSY; |
| } |
| |
| netdev->mtu = new_mtu; |
| |
| /* if VSI is up, bring it down and then back up */ |
| if (!test_and_set_bit(__ICE_DOWN, vsi->state)) { |
| int err; |
| |
| err = ice_down(vsi); |
| if (err) { |
| netdev_err(netdev, "change MTU if_up err %d\n", err); |
| return err; |
| } |
| |
| err = ice_up(vsi); |
| if (err) { |
| netdev_err(netdev, "change MTU if_up err %d\n", err); |
| return err; |
| } |
| } |
| |
| netdev_dbg(netdev, "changed MTU to %d\n", new_mtu); |
| return 0; |
| } |
| |
| /** |
| * ice_set_rss - Set RSS keys and lut |
| * @vsi: Pointer to VSI structure |
| * @seed: RSS hash seed |
| * @lut: Lookup table |
| * @lut_size: Lookup table size |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| enum ice_status status; |
| struct device *dev; |
| |
| dev = ice_pf_to_dev(pf); |
| if (seed) { |
| struct ice_aqc_get_set_rss_keys *buf = |
| (struct ice_aqc_get_set_rss_keys *)seed; |
| |
| status = ice_aq_set_rss_key(hw, vsi->idx, buf); |
| |
| if (status) { |
| dev_err(dev, "Cannot set RSS key, err %d aq_err %d\n", |
| status, hw->adminq.rq_last_status); |
| return -EIO; |
| } |
| } |
| |
| if (lut) { |
| status = ice_aq_set_rss_lut(hw, vsi->idx, vsi->rss_lut_type, |
| lut, lut_size); |
| if (status) { |
| dev_err(dev, "Cannot set RSS lut, err %d aq_err %d\n", |
| status, hw->adminq.rq_last_status); |
| return -EIO; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_get_rss - Get RSS keys and lut |
| * @vsi: Pointer to VSI structure |
| * @seed: Buffer to store the keys |
| * @lut: Buffer to store the lookup table entries |
| * @lut_size: Size of buffer to store the lookup table entries |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| enum ice_status status; |
| struct device *dev; |
| |
| dev = ice_pf_to_dev(pf); |
| if (seed) { |
| struct ice_aqc_get_set_rss_keys *buf = |
| (struct ice_aqc_get_set_rss_keys *)seed; |
| |
| status = ice_aq_get_rss_key(hw, vsi->idx, buf); |
| if (status) { |
| dev_err(dev, "Cannot get RSS key, err %d aq_err %d\n", |
| status, hw->adminq.rq_last_status); |
| return -EIO; |
| } |
| } |
| |
| if (lut) { |
| status = ice_aq_get_rss_lut(hw, vsi->idx, vsi->rss_lut_type, |
| lut, lut_size); |
| if (status) { |
| dev_err(dev, "Cannot get RSS lut, err %d aq_err %d\n", |
| status, hw->adminq.rq_last_status); |
| return -EIO; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_bridge_getlink - Get the hardware bridge mode |
| * @skb: skb buff |
| * @pid: process ID |
| * @seq: RTNL message seq |
| * @dev: the netdev being configured |
| * @filter_mask: filter mask passed in |
| * @nlflags: netlink flags passed in |
| * |
| * Return the bridge mode (VEB/VEPA) |
| */ |
| static int |
| ice_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
| struct net_device *dev, u32 filter_mask, int nlflags) |
| { |
| struct ice_netdev_priv *np = netdev_priv(dev); |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_pf *pf = vsi->back; |
| u16 bmode; |
| |
| bmode = pf->first_sw->bridge_mode; |
| |
| return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bmode, 0, 0, nlflags, |
| filter_mask, NULL); |
| } |
| |
| /** |
| * ice_vsi_update_bridge_mode - Update VSI for switching bridge mode (VEB/VEPA) |
| * @vsi: Pointer to VSI structure |
| * @bmode: Hardware bridge mode (VEB/VEPA) |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode) |
| { |
| struct ice_aqc_vsi_props *vsi_props; |
| struct ice_hw *hw = &vsi->back->hw; |
| struct ice_vsi_ctx *ctxt; |
| enum ice_status status; |
| int ret = 0; |
| |
| vsi_props = &vsi->info; |
| |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return -ENOMEM; |
| |
| ctxt->info = vsi->info; |
| |
| if (bmode == BRIDGE_MODE_VEB) |
| /* change from VEPA to VEB mode */ |
| ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB; |
| else |
| /* change from VEB to VEPA mode */ |
| ctxt->info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_ALLOW_LB; |
| ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); |
| |
| status = ice_update_vsi(hw, vsi->idx, ctxt, NULL); |
| if (status) { |
| dev_err(&vsi->back->pdev->dev, "update VSI for bridge mode failed, bmode = %d err %d aq_err %d\n", |
| bmode, status, hw->adminq.sq_last_status); |
| ret = -EIO; |
| goto out; |
| } |
| /* Update sw flags for book keeping */ |
| vsi_props->sw_flags = ctxt->info.sw_flags; |
| |
| out: |
| kfree(ctxt); |
| return ret; |
| } |
| |
| /** |
| * ice_bridge_setlink - Set the hardware bridge mode |
| * @dev: the netdev being configured |
| * @nlh: RTNL message |
| * @flags: bridge setlink flags |
| * @extack: netlink extended ack |
| * |
| * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is |
| * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if |
| * not already set for all VSIs connected to this switch. And also update the |
| * unicast switch filter rules for the corresponding switch of the netdev. |
| */ |
| static int |
| ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, |
| u16 __always_unused flags, |
| struct netlink_ext_ack __always_unused *extack) |
| { |
| struct ice_netdev_priv *np = netdev_priv(dev); |
| struct ice_pf *pf = np->vsi->back; |
| struct nlattr *attr, *br_spec; |
| struct ice_hw *hw = &pf->hw; |
| enum ice_status status; |
| struct ice_sw *pf_sw; |
| int rem, v, err = 0; |
| |
| pf_sw = pf->first_sw; |
| /* find the attribute in the netlink message */ |
| br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); |
| |
| nla_for_each_nested(attr, br_spec, rem) { |
| __u16 mode; |
| |
| if (nla_type(attr) != IFLA_BRIDGE_MODE) |
| continue; |
| mode = nla_get_u16(attr); |
| if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB) |
| return -EINVAL; |
| /* Continue if bridge mode is not being flipped */ |
| if (mode == pf_sw->bridge_mode) |
| continue; |
| /* Iterates through the PF VSI list and update the loopback |
| * mode of the VSI |
| */ |
| ice_for_each_vsi(pf, v) { |
| if (!pf->vsi[v]) |
| continue; |
| err = ice_vsi_update_bridge_mode(pf->vsi[v], mode); |
| if (err) |
| return err; |
| } |
| |
| hw->evb_veb = (mode == BRIDGE_MODE_VEB); |
| /* Update the unicast switch filter rules for the corresponding |
| * switch of the netdev |
| */ |
| status = ice_update_sw_rule_bridge_mode(hw); |
| if (status) { |
| netdev_err(dev, "switch rule update failed, mode = %d err %d aq_err %d\n", |
| mode, status, hw->adminq.sq_last_status); |
| /* revert hw->evb_veb */ |
| hw->evb_veb = (pf_sw->bridge_mode == BRIDGE_MODE_VEB); |
| return -EIO; |
| } |
| |
| pf_sw->bridge_mode = mode; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_tx_timeout - Respond to a Tx Hang |
| * @netdev: network interface device structure |
| */ |
| static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_ring *tx_ring = NULL; |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_pf *pf = vsi->back; |
| u32 i; |
| |
| pf->tx_timeout_count++; |
| |
| /* now that we have an index, find the tx_ring struct */ |
| for (i = 0; i < vsi->num_txq; i++) |
| if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) |
| if (txqueue == vsi->tx_rings[i]->q_index) { |
| tx_ring = vsi->tx_rings[i]; |
| break; |
| } |
| |
| /* Reset recovery level if enough time has elapsed after last timeout. |
| * Also ensure no new reset action happens before next timeout period. |
| */ |
| if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ * 20))) |
| pf->tx_timeout_recovery_level = 1; |
| else if (time_before(jiffies, (pf->tx_timeout_last_recovery + |
| netdev->watchdog_timeo))) |
| return; |
| |
| if (tx_ring) { |
| struct ice_hw *hw = &pf->hw; |
| u32 head, val = 0; |
| |
| head = (rd32(hw, QTX_COMM_HEAD(vsi->txq_map[txqueue])) & |
| QTX_COMM_HEAD_HEAD_M) >> QTX_COMM_HEAD_HEAD_S; |
| /* Read interrupt register */ |
| val = rd32(hw, GLINT_DYN_CTL(tx_ring->q_vector->reg_idx)); |
| |
| netdev_info(netdev, "tx_timeout: VSI_num: %d, Q %d, NTC: 0x%x, HW_HEAD: 0x%x, NTU: 0x%x, INT: 0x%x\n", |
| vsi->vsi_num, txqueue, tx_ring->next_to_clean, |
| head, tx_ring->next_to_use, val); |
| } |
| |
| pf->tx_timeout_last_recovery = jiffies; |
| netdev_info(netdev, "tx_timeout recovery level %d, txqueue %d\n", |
| pf->tx_timeout_recovery_level, txqueue); |
| |
| switch (pf->tx_timeout_recovery_level) { |
| case 1: |
| set_bit(__ICE_PFR_REQ, pf->state); |
| break; |
| case 2: |
| set_bit(__ICE_CORER_REQ, pf->state); |
| break; |
| case 3: |
| set_bit(__ICE_GLOBR_REQ, pf->state); |
| break; |
| default: |
| netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n"); |
| set_bit(__ICE_DOWN, pf->state); |
| set_bit(__ICE_NEEDS_RESTART, vsi->state); |
| set_bit(__ICE_SERVICE_DIS, pf->state); |
| break; |
| } |
| |
| ice_service_task_schedule(pf); |
| pf->tx_timeout_recovery_level++; |
| } |
| |
| /** |
| * ice_open - Called when a network interface becomes active |
| * @netdev: network interface device structure |
| * |
| * The open entry point is called when a network interface is made |
| * active by the system (IFF_UP). At this point all resources needed |
| * for transmit and receive operations are allocated, the interrupt |
| * handler is registered with the OS, the netdev watchdog is enabled, |
| * and the stack is notified that the interface is ready. |
| * |
| * Returns 0 on success, negative value on failure |
| */ |
| int ice_open(struct net_device *netdev) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| struct ice_port_info *pi; |
| int err; |
| |
| if (test_bit(__ICE_NEEDS_RESTART, vsi->back->state)) { |
| netdev_err(netdev, "driver needs to be unloaded and reloaded\n"); |
| return -EIO; |
| } |
| |
| netif_carrier_off(netdev); |
| |
| pi = vsi->port_info; |
| err = ice_update_link_info(pi); |
| if (err) { |
| netdev_err(netdev, "Failed to get link info, error %d\n", |
| err); |
| return err; |
| } |
| |
| /* Set PHY if there is media, otherwise, turn off PHY */ |
| if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { |
| err = ice_force_phys_link_state(vsi, true); |
| if (err) { |
| netdev_err(netdev, |
| "Failed to set physical link up, error %d\n", |
| err); |
| return err; |
| } |
| } else { |
| err = ice_aq_set_link_restart_an(pi, false, NULL); |
| if (err) { |
| netdev_err(netdev, "Failed to set PHY state, VSI %d error %d\n", |
| vsi->vsi_num, err); |
| return err; |
| } |
| set_bit(ICE_FLAG_NO_MEDIA, vsi->back->flags); |
| } |
| |
| err = ice_vsi_open(vsi); |
| if (err) |
| netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n", |
| vsi->vsi_num, vsi->vsw->sw_id); |
| return err; |
| } |
| |
| /** |
| * ice_stop - Disables a network interface |
| * @netdev: network interface device structure |
| * |
| * The stop entry point is called when an interface is de-activated by the OS, |
| * and the netdevice enters the DOWN state. The hardware is still under the |
| * driver's control, but the netdev interface is disabled. |
| * |
| * Returns success only - not allowed to fail |
| */ |
| int ice_stop(struct net_device *netdev) |
| { |
| struct ice_netdev_priv *np = netdev_priv(netdev); |
| struct ice_vsi *vsi = np->vsi; |
| |
| ice_vsi_close(vsi); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_features_check - Validate encapsulated packet conforms to limits |
| * @skb: skb buffer |
| * @netdev: This port's netdev |
| * @features: Offload features that the stack believes apply |
| */ |
| static netdev_features_t |
| ice_features_check(struct sk_buff *skb, |
| struct net_device __always_unused *netdev, |
| netdev_features_t features) |
| { |
| size_t len; |
| |
| /* No point in doing any of this if neither checksum nor GSO are |
| * being requested for this frame. We can rule out both by just |
| * checking for CHECKSUM_PARTIAL |
| */ |
| if (skb->ip_summed != CHECKSUM_PARTIAL) |
| return features; |
| |
| /* We cannot support GSO if the MSS is going to be less than |
| * 64 bytes. If it is then we need to drop support for GSO. |
| */ |
| if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64)) |
| features &= ~NETIF_F_GSO_MASK; |
| |
| len = skb_network_header(skb) - skb->data; |
| if (len & ~(ICE_TXD_MACLEN_MAX)) |
| goto out_rm_features; |
| |
| len = skb_transport_header(skb) - skb_network_header(skb); |
| if (len & ~(ICE_TXD_IPLEN_MAX)) |
| goto out_rm_features; |
| |
| if (skb->encapsulation) { |
| len = skb_inner_network_header(skb) - skb_transport_header(skb); |
| if (len & ~(ICE_TXD_L4LEN_MAX)) |
| goto out_rm_features; |
| |
| len = skb_inner_transport_header(skb) - |
| skb_inner_network_header(skb); |
| if (len & ~(ICE_TXD_IPLEN_MAX)) |
| goto out_rm_features; |
| } |
| |
| return features; |
| out_rm_features: |
| return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
| } |
| |
| static const struct net_device_ops ice_netdev_safe_mode_ops = { |
| .ndo_open = ice_open, |
| .ndo_stop = ice_stop, |
| .ndo_start_xmit = ice_start_xmit, |
| .ndo_set_mac_address = ice_set_mac_address, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_change_mtu = ice_change_mtu, |
| .ndo_get_stats64 = ice_get_stats64, |
| .ndo_tx_timeout = ice_tx_timeout, |
| }; |
| |
| static const struct net_device_ops ice_netdev_ops = { |
| .ndo_open = ice_open, |
| .ndo_stop = ice_stop, |
| .ndo_start_xmit = ice_start_xmit, |
| .ndo_features_check = ice_features_check, |
| .ndo_set_rx_mode = ice_set_rx_mode, |
| .ndo_set_mac_address = ice_set_mac_address, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_change_mtu = ice_change_mtu, |
| .ndo_get_stats64 = ice_get_stats64, |
| .ndo_set_tx_maxrate = ice_set_tx_maxrate, |
| .ndo_set_vf_spoofchk = ice_set_vf_spoofchk, |
| .ndo_set_vf_mac = ice_set_vf_mac, |
| .ndo_get_vf_config = ice_get_vf_cfg, |
| .ndo_set_vf_trust = ice_set_vf_trust, |
| .ndo_set_vf_vlan = ice_set_vf_port_vlan, |
| .ndo_set_vf_link_state = ice_set_vf_link_state, |
| .ndo_get_vf_stats = ice_get_vf_stats, |
| .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid, |
| .ndo_set_features = ice_set_features, |
| .ndo_bridge_getlink = ice_bridge_getlink, |
| .ndo_bridge_setlink = ice_bridge_setlink, |
| .ndo_fdb_add = ice_fdb_add, |
| .ndo_fdb_del = ice_fdb_del, |
| .ndo_tx_timeout = ice_tx_timeout, |
| .ndo_bpf = ice_xdp, |
| .ndo_xdp_xmit = ice_xdp_xmit, |
| .ndo_xsk_wakeup = ice_xsk_wakeup, |
| }; |