mirror of https://gitee.com/openkylin/linux.git
4882 lines
127 KiB
C
4882 lines
127 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2018, Intel Corporation. */
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/* Intel(R) Ethernet Connection E800 Series Linux Driver */
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include "ice.h"
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#include "ice_lib.h"
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#include "ice_dcb_lib.h"
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#define DRV_VERSION_MAJOR 0
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#define DRV_VERSION_MINOR 8
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#define DRV_VERSION_BUILD 1
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#define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
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__stringify(DRV_VERSION_MINOR) "." \
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__stringify(DRV_VERSION_BUILD) "-k"
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#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
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const char ice_drv_ver[] = DRV_VERSION;
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static const char ice_driver_string[] = DRV_SUMMARY;
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static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation.";
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/* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */
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#define ICE_DDP_PKG_PATH "intel/ice/ddp/"
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#define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg"
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MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
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MODULE_DESCRIPTION(DRV_SUMMARY);
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MODULE_LICENSE("GPL v2");
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MODULE_VERSION(DRV_VERSION);
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MODULE_FIRMWARE(ICE_DDP_PKG_FILE);
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static int debug = -1;
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module_param(debug, int, 0644);
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#ifndef CONFIG_DYNAMIC_DEBUG
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MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)");
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#else
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MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");
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#endif /* !CONFIG_DYNAMIC_DEBUG */
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static struct workqueue_struct *ice_wq;
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static const struct net_device_ops ice_netdev_safe_mode_ops;
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static const struct net_device_ops ice_netdev_ops;
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static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type);
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static void ice_vsi_release_all(struct ice_pf *pf);
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/**
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* ice_get_tx_pending - returns number of Tx descriptors not processed
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* @ring: the ring of descriptors
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*/
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static u16 ice_get_tx_pending(struct ice_ring *ring)
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{
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u16 head, tail;
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head = ring->next_to_clean;
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tail = ring->next_to_use;
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if (head != tail)
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return (head < tail) ?
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tail - head : (tail + ring->count - head);
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return 0;
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}
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/**
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* ice_check_for_hang_subtask - check for and recover hung queues
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* @pf: pointer to PF struct
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*/
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static void ice_check_for_hang_subtask(struct ice_pf *pf)
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{
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struct ice_vsi *vsi = NULL;
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struct ice_hw *hw;
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unsigned int i;
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int packets;
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u32 v;
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ice_for_each_vsi(pf, v)
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if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) {
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vsi = pf->vsi[v];
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break;
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}
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if (!vsi || test_bit(__ICE_DOWN, vsi->state))
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return;
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if (!(vsi->netdev && netif_carrier_ok(vsi->netdev)))
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return;
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hw = &vsi->back->hw;
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for (i = 0; i < vsi->num_txq; i++) {
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struct ice_ring *tx_ring = vsi->tx_rings[i];
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if (tx_ring && tx_ring->desc) {
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/* If packet counter has not changed the queue is
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* likely stalled, so force an interrupt for this
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* queue.
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*
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* prev_pkt would be negative if there was no
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* pending work.
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*/
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packets = tx_ring->stats.pkts & INT_MAX;
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if (tx_ring->tx_stats.prev_pkt == packets) {
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/* Trigger sw interrupt to revive the queue */
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ice_trigger_sw_intr(hw, tx_ring->q_vector);
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continue;
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}
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/* Memory barrier between read of packet count and call
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* to ice_get_tx_pending()
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*/
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smp_rmb();
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tx_ring->tx_stats.prev_pkt =
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ice_get_tx_pending(tx_ring) ? packets : -1;
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}
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}
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}
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/**
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* ice_init_mac_fltr - Set initial MAC filters
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* @pf: board private structure
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*
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* Set initial set of MAC filters for PF VSI; configure filters for permanent
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* address and broadcast address. If an error is encountered, netdevice will be
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* unregistered.
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*/
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static int ice_init_mac_fltr(struct ice_pf *pf)
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{
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enum ice_status status;
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u8 broadcast[ETH_ALEN];
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struct ice_vsi *vsi;
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vsi = ice_get_main_vsi(pf);
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if (!vsi)
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return -EINVAL;
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/* To add a MAC filter, first add the MAC to a list and then
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* pass the list to ice_add_mac.
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*/
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/* Add a unicast MAC filter so the VSI can get its packets */
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status = ice_vsi_cfg_mac_fltr(vsi, vsi->port_info->mac.perm_addr, true);
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if (status)
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goto unregister;
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/* VSI needs to receive broadcast traffic, so add the broadcast
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* MAC address to the list as well.
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*/
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eth_broadcast_addr(broadcast);
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status = ice_vsi_cfg_mac_fltr(vsi, broadcast, true);
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if (status)
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goto unregister;
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return 0;
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unregister:
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/* We aren't useful with no MAC filters, so unregister if we
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* had an error
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*/
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if (status && vsi->netdev->reg_state == NETREG_REGISTERED) {
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dev_err(&pf->pdev->dev,
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"Could not add MAC filters error %d. Unregistering device\n",
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status);
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unregister_netdev(vsi->netdev);
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free_netdev(vsi->netdev);
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vsi->netdev = NULL;
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}
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return -EIO;
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}
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/**
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* ice_add_mac_to_sync_list - creates list of MAC addresses to be synced
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* @netdev: the net device on which the sync is happening
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* @addr: MAC address to sync
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*
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* This is a callback function which is called by the in kernel device sync
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* functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only
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* populates the tmp_sync_list, which is later used by ice_add_mac to add the
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* MAC filters from the hardware.
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*/
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static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr)
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{
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struct ice_netdev_priv *np = netdev_priv(netdev);
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struct ice_vsi *vsi = np->vsi;
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if (ice_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr))
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return -EINVAL;
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return 0;
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}
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/**
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* ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced
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* @netdev: the net device on which the unsync is happening
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* @addr: MAC address to unsync
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*
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* This is a callback function which is called by the in kernel device unsync
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* functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only
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* populates the tmp_unsync_list, which is later used by ice_remove_mac to
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* delete the MAC filters from the hardware.
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*/
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static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr)
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{
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struct ice_netdev_priv *np = netdev_priv(netdev);
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struct ice_vsi *vsi = np->vsi;
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if (ice_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr))
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return -EINVAL;
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return 0;
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}
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/**
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* ice_vsi_fltr_changed - check if filter state changed
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* @vsi: VSI to be checked
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*
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* returns true if filter state has changed, false otherwise.
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*/
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static bool ice_vsi_fltr_changed(struct ice_vsi *vsi)
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{
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return test_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags) ||
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test_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags) ||
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test_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags);
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}
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/**
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* ice_cfg_promisc - Enable or disable promiscuous mode for a given PF
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* @vsi: the VSI being configured
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* @promisc_m: mask of promiscuous config bits
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* @set_promisc: enable or disable promisc flag request
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*
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*/
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static int ice_cfg_promisc(struct ice_vsi *vsi, u8 promisc_m, bool set_promisc)
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{
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struct ice_hw *hw = &vsi->back->hw;
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enum ice_status status = 0;
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if (vsi->type != ICE_VSI_PF)
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return 0;
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if (vsi->vlan_ena) {
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status = ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_m,
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set_promisc);
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} else {
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if (set_promisc)
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status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m,
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0);
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else
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status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m,
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0);
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}
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if (status)
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return -EIO;
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return 0;
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}
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/**
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* ice_vsi_sync_fltr - Update the VSI filter list to the HW
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* @vsi: ptr to the VSI
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*
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* Push any outstanding VSI filter changes through the AdminQ.
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*/
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static int ice_vsi_sync_fltr(struct ice_vsi *vsi)
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{
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struct device *dev = &vsi->back->pdev->dev;
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struct net_device *netdev = vsi->netdev;
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bool promisc_forced_on = false;
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struct ice_pf *pf = vsi->back;
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struct ice_hw *hw = &pf->hw;
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enum ice_status status = 0;
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u32 changed_flags = 0;
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u8 promisc_m;
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int err = 0;
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if (!vsi->netdev)
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return -EINVAL;
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while (test_and_set_bit(__ICE_CFG_BUSY, vsi->state))
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usleep_range(1000, 2000);
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changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;
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vsi->current_netdev_flags = vsi->netdev->flags;
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INIT_LIST_HEAD(&vsi->tmp_sync_list);
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INIT_LIST_HEAD(&vsi->tmp_unsync_list);
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if (ice_vsi_fltr_changed(vsi)) {
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clear_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags);
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clear_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags);
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clear_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags);
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/* grab the netdev's addr_list_lock */
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netif_addr_lock_bh(netdev);
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__dev_uc_sync(netdev, ice_add_mac_to_sync_list,
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ice_add_mac_to_unsync_list);
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__dev_mc_sync(netdev, ice_add_mac_to_sync_list,
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ice_add_mac_to_unsync_list);
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/* our temp lists are populated. release lock */
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netif_addr_unlock_bh(netdev);
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}
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/* Remove MAC addresses in the unsync list */
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status = ice_remove_mac(hw, &vsi->tmp_unsync_list);
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ice_free_fltr_list(dev, &vsi->tmp_unsync_list);
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if (status) {
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netdev_err(netdev, "Failed to delete MAC filters\n");
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/* if we failed because of alloc failures, just bail */
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if (status == ICE_ERR_NO_MEMORY) {
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err = -ENOMEM;
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goto out;
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}
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}
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/* Add MAC addresses in the sync list */
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status = ice_add_mac(hw, &vsi->tmp_sync_list);
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ice_free_fltr_list(dev, &vsi->tmp_sync_list);
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/* If filter is added successfully or already exists, do not go into
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* 'if' condition and report it as error. Instead continue processing
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* rest of the function.
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*/
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if (status && status != ICE_ERR_ALREADY_EXISTS) {
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netdev_err(netdev, "Failed to add MAC filters\n");
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/* If there is no more space for new umac filters, VSI
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* should go into promiscuous mode. There should be some
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* space reserved for promiscuous filters.
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*/
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if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC &&
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!test_and_set_bit(__ICE_FLTR_OVERFLOW_PROMISC,
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vsi->state)) {
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promisc_forced_on = true;
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netdev_warn(netdev,
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"Reached MAC filter limit, forcing promisc mode on VSI %d\n",
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vsi->vsi_num);
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} else {
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err = -EIO;
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goto out;
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}
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}
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/* check for changes in promiscuous modes */
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if (changed_flags & IFF_ALLMULTI) {
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if (vsi->current_netdev_flags & IFF_ALLMULTI) {
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if (vsi->vlan_ena)
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promisc_m = ICE_MCAST_VLAN_PROMISC_BITS;
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else
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promisc_m = ICE_MCAST_PROMISC_BITS;
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err = ice_cfg_promisc(vsi, promisc_m, true);
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if (err) {
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netdev_err(netdev, "Error setting Multicast promiscuous mode on VSI %i\n",
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vsi->vsi_num);
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vsi->current_netdev_flags &= ~IFF_ALLMULTI;
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goto out_promisc;
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}
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} else if (!(vsi->current_netdev_flags & IFF_ALLMULTI)) {
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if (vsi->vlan_ena)
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promisc_m = ICE_MCAST_VLAN_PROMISC_BITS;
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else
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promisc_m = ICE_MCAST_PROMISC_BITS;
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err = ice_cfg_promisc(vsi, promisc_m, false);
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if (err) {
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netdev_err(netdev, "Error clearing Multicast promiscuous mode on VSI %i\n",
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vsi->vsi_num);
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vsi->current_netdev_flags |= IFF_ALLMULTI;
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goto out_promisc;
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}
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}
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}
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if (((changed_flags & IFF_PROMISC) || promisc_forced_on) ||
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test_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags)) {
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clear_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags);
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if (vsi->current_netdev_flags & IFF_PROMISC) {
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/* Apply Rx filter rule to get traffic from wire */
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status = ice_cfg_dflt_vsi(hw, vsi->idx, true,
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ICE_FLTR_RX);
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if (status) {
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netdev_err(netdev, "Error setting default VSI %i Rx rule\n",
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vsi->vsi_num);
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vsi->current_netdev_flags &= ~IFF_PROMISC;
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err = -EIO;
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goto out_promisc;
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}
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} else {
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/* Clear Rx filter to remove traffic from wire */
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status = ice_cfg_dflt_vsi(hw, vsi->idx, false,
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ICE_FLTR_RX);
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if (status) {
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netdev_err(netdev, "Error clearing default VSI %i Rx rule\n",
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vsi->vsi_num);
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vsi->current_netdev_flags |= IFF_PROMISC;
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err = -EIO;
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goto out_promisc;
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}
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}
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}
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goto exit;
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out_promisc:
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set_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags);
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goto exit;
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out:
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/* if something went wrong then set the changed flag so we try again */
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set_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags);
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set_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags);
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exit:
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clear_bit(__ICE_CFG_BUSY, vsi->state);
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return err;
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}
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/**
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* ice_sync_fltr_subtask - Sync the VSI filter list with HW
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* @pf: board private structure
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*/
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static void ice_sync_fltr_subtask(struct ice_pf *pf)
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{
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int v;
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if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags)))
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return;
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clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
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ice_for_each_vsi(pf, v)
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if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) &&
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ice_vsi_sync_fltr(pf->vsi[v])) {
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/* come back and try again later */
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set_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
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break;
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}
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}
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/**
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* ice_dis_vsi - pause a VSI
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* @vsi: the VSI being paused
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* @locked: is the rtnl_lock already held
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*/
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static void ice_dis_vsi(struct ice_vsi *vsi, bool locked)
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{
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if (test_bit(__ICE_DOWN, vsi->state))
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return;
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set_bit(__ICE_NEEDS_RESTART, vsi->state);
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if (vsi->type == ICE_VSI_PF && vsi->netdev) {
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if (netif_running(vsi->netdev)) {
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if (!locked)
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rtnl_lock();
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ice_stop(vsi->netdev);
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if (!locked)
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rtnl_unlock();
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} else {
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ice_vsi_close(vsi);
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}
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}
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}
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/**
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* ice_pf_dis_all_vsi - Pause all VSIs on a PF
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* @pf: the PF
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* @locked: is the rtnl_lock already held
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*/
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#ifdef CONFIG_DCB
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void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked)
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#else
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static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked)
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#endif /* CONFIG_DCB */
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{
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int v;
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ice_for_each_vsi(pf, v)
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if (pf->vsi[v])
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ice_dis_vsi(pf->vsi[v], locked);
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}
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|
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/**
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* ice_prepare_for_reset - prep for the core to reset
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* @pf: board private structure
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*
|
|
* 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 */
|
|
for (i = 0; i < pf->num_alloc_vfs; 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 = &pf->pdev->dev;
|
|
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:
|
|
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;
|
|
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 = devm_kzalloc(&vsi->back->pdev->dev, 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";
|
|
|
|
devm_kfree(&vsi->back->pdev->dev, 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 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(&pf->pdev->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(&pf->pdev->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);
|
|
|
|
if (pf->num_alloc_vfs)
|
|
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(&pf->pdev->dev,
|
|
"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 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(&pf->pdev->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(&pf->pdev->dev,
|
|
"%s Receive Queue VF Error detected\n", qtype);
|
|
if (val & PF_FW_ARQLEN_ARQOVFL_M) {
|
|
dev_dbg(&pf->pdev->dev,
|
|
"%s Receive Queue Overflow Error detected\n",
|
|
qtype);
|
|
}
|
|
if (val & PF_FW_ARQLEN_ARQCRIT_M)
|
|
dev_dbg(&pf->pdev->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(&pf->pdev->dev,
|
|
"%s Send Queue VF Error detected\n", qtype);
|
|
if (val & PF_FW_ATQLEN_ATQOVFL_M) {
|
|
dev_dbg(&pf->pdev->dev,
|
|
"%s Send Queue Overflow Error detected\n",
|
|
qtype);
|
|
}
|
|
if (val & PF_FW_ATQLEN_ATQCRIT_M)
|
|
dev_dbg(&pf->pdev->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 = devm_kzalloc(&pf->pdev->dev, 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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->dev,
|
|
"%s Receive Queue unknown event 0x%04x ignored\n",
|
|
qtype, opcode);
|
|
break;
|
|
}
|
|
} while (pending && (i++ < ICE_DFLT_IRQ_WORK));
|
|
|
|
devm_kfree(&pf->pdev->dev, 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 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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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 */
|
|
for (i = 0; i < pf->num_alloc_vfs; 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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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 = devm_kzalloc(dev, 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 = devm_kzalloc(dev, 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;
|
|
}
|
|
|
|
devm_kfree(dev, cfg);
|
|
out:
|
|
devm_kfree(dev, 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_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;
|
|
int rx_int_idx = 0;
|
|
int tx_int_idx = 0;
|
|
int vector, err;
|
|
int irq_num;
|
|
|
|
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(&pf->pdev->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(&pf->pdev->dev, irq_num, &vsi->q_vectors[vector]);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
u32 oicr, ena_mask;
|
|
|
|
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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->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(&pf->pdev->dev,
|
|
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 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(&pf->pdev->dev),
|
|
dev_name(&pf->pdev->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(&pf->pdev->dev,
|
|
pf->msix_entries[pf->oicr_idx].vector,
|
|
ice_misc_intr, 0, pf->int_name, pf);
|
|
if (err) {
|
|
dev_err(&pf->pdev->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;
|
|
|
|
/* 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, &pf->pdev->dev);
|
|
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;
|
|
}
|
|
|
|
/* 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->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);
|
|
|
|
/* 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(&pf->pdev->dev, 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)
|
|
{
|
|
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(&pf->pdev->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(&pf->pdev->dev, "unable to reserve MSI-X vectors\n");
|
|
err = v_actual;
|
|
goto msix_err;
|
|
}
|
|
|
|
if (v_actual < v_budget) {
|
|
dev_warn(&pf->pdev->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(&pf->pdev->dev, pf->msix_entries);
|
|
goto exit_err;
|
|
|
|
no_hw_vecs_left_err:
|
|
dev_err(&pf->pdev->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(&pf->pdev->dev, 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(&pf->pdev->dev, 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(&pf->pdev->dev, 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_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 = &pf->pdev->dev;
|
|
|
|
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->adminq.sq_last_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 = &pf->pdev->dev;
|
|
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(&pf->pdev->dev,
|
|
"%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 = &pf->pdev->dev;
|
|
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];
|
|
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);
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_alloc_sw_unroll:
|
|
set_bit(__ICE_SERVICE_DIS, pf->state);
|
|
set_bit(__ICE_DOWN, pf->state);
|
|
devm_kfree(&pf->pdev->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);
|
|
ice_clear_interrupt_scheme(pf);
|
|
/* 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_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 },
|
|
/* 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_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;
|
|
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;
|
|
}
|
|
|
|
/* 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)
|
|
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);
|
|
|
|
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) {
|
|
vsi->tx_rings[i]->netdev = vsi->netdev;
|
|
err = ice_setup_tx_ring(vsi->tx_rings[i]);
|
|
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) {
|
|
vsi->rx_rings[i]->netdev = vsi->netdev;
|
|
err = ice_setup_rx_ring(vsi->rx_rings[i]);
|
|
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(&pf->pdev->dev), 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(&pf->pdev->dev,
|
|
"Failed to release pf->vsi[%d], err %d, vsi_num = %d\n",
|
|
i, err, pf->vsi[i]->vsi_num);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ice_ena_vsi - resume a VSI
|
|
* @vsi: the VSI being resume
|
|
* @locked: is the rtnl_lock already held
|
|
*/
|
|
static int ice_ena_vsi(struct ice_vsi *vsi, bool locked)
|
|
{
|
|
int err = 0;
|
|
|
|
if (!test_bit(__ICE_NEEDS_RESTART, vsi->state))
|
|
return 0;
|
|
|
|
clear_bit(__ICE_NEEDS_RESTART, vsi->state);
|
|
|
|
if (vsi->netdev && vsi->type == ICE_VSI_PF) {
|
|
if (netif_running(vsi->netdev)) {
|
|
if (!locked)
|
|
rtnl_lock();
|
|
|
|
err = ice_open(vsi->netdev);
|
|
|
|
if (!locked)
|
|
rtnl_unlock();
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* ice_pf_ena_all_vsi - Resume all VSIs on a PF
|
|
* @pf: the PF
|
|
* @locked: is the rtnl_lock already held
|
|
*/
|
|
#ifdef CONFIG_DCB
|
|
int ice_pf_ena_all_vsi(struct ice_pf *pf, bool locked)
|
|
{
|
|
int v;
|
|
|
|
ice_for_each_vsi(pf, v)
|
|
if (pf->vsi[v])
|
|
if (ice_ena_vsi(pf->vsi[v], locked))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_DCB */
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
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);
|
|
if (err) {
|
|
dev_err(&pf->pdev->dev,
|
|
"rebuild VSI failed, err %d, VSI index %d, type %d\n",
|
|
err, vsi->idx, type);
|
|
return err;
|
|
}
|
|
|
|
/* replay filters for the VSI */
|
|
status = ice_replay_vsi(&pf->hw, vsi->idx);
|
|
if (status) {
|
|
dev_err(&pf->pdev->dev,
|
|
"replay VSI failed, status %d, VSI index %d, type %d\n",
|
|
status, vsi->idx, 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(&pf->pdev->dev,
|
|
"enable VSI failed, err %d, VSI index %d, type %d\n",
|
|
err, vsi->idx, type);
|
|
return err;
|
|
}
|
|
|
|
dev_info(&pf->pdev->dev, "VSI rebuilt. VSI index %d, type %d\n",
|
|
vsi->idx, 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 = &pf->pdev->dev;
|
|
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;
|
|
}
|
|
|
|
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(&pf->pdev->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_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 (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_info(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;
|
|
|
|
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(&pf->pdev->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(&pf->pdev->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;
|
|
|
|
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(&pf->pdev->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(&pf->pdev->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 device *dev = &vsi->back->pdev->dev;
|
|
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 = devm_kzalloc(dev, 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(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:
|
|
devm_kfree(dev, 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)
|
|
{
|
|
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;
|
|
int hung_queue = -1;
|
|
u32 i;
|
|
|
|
pf->tx_timeout_count++;
|
|
|
|
/* find the stopped queue the same way dev_watchdog() does */
|
|
for (i = 0; i < netdev->num_tx_queues; i++) {
|
|
unsigned long trans_start;
|
|
struct netdev_queue *q;
|
|
|
|
q = netdev_get_tx_queue(netdev, i);
|
|
trans_start = q->trans_start;
|
|
if (netif_xmit_stopped(q) &&
|
|
time_after(jiffies,
|
|
trans_start + netdev->watchdog_timeo)) {
|
|
hung_queue = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == netdev->num_tx_queues)
|
|
netdev_info(netdev, "tx_timeout: no netdev hung queue found\n");
|
|
else
|
|
/* 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 (hung_queue == 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[hung_queue])) &
|
|
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, hung_queue, 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, hung_queue %d\n",
|
|
pf->tx_timeout_recovery_level, hung_queue);
|
|
|
|
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,
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};
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static const struct net_device_ops ice_netdev_ops = {
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.ndo_open = ice_open,
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.ndo_stop = ice_stop,
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.ndo_start_xmit = ice_start_xmit,
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.ndo_features_check = ice_features_check,
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.ndo_set_rx_mode = ice_set_rx_mode,
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.ndo_set_mac_address = ice_set_mac_address,
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.ndo_validate_addr = eth_validate_addr,
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.ndo_change_mtu = ice_change_mtu,
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.ndo_get_stats64 = ice_get_stats64,
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.ndo_set_vf_spoofchk = ice_set_vf_spoofchk,
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.ndo_set_vf_mac = ice_set_vf_mac,
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.ndo_get_vf_config = ice_get_vf_cfg,
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.ndo_set_vf_trust = ice_set_vf_trust,
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.ndo_set_vf_vlan = ice_set_vf_port_vlan,
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.ndo_set_vf_link_state = ice_set_vf_link_state,
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.ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
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.ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
|
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.ndo_set_features = ice_set_features,
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.ndo_bridge_getlink = ice_bridge_getlink,
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.ndo_bridge_setlink = ice_bridge_setlink,
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|
.ndo_fdb_add = ice_fdb_add,
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.ndo_fdb_del = ice_fdb_del,
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|
.ndo_tx_timeout = ice_tx_timeout,
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|
};
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