#include "ice.h"
-#define DRV_VERSION "ice-0.0.1-k"
+#define DRV_VERSION "ice-0.7.0-k"
#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
const char ice_drv_ver[] = DRV_VERSION;
static const char ice_driver_string[] = DRV_SUMMARY;
return 0;
}
+/**
+ * ice_add_mac_to_sync_list - creates list of mac addresses to be synced
+ * @netdev: the net device on which the sync is happening
+ * @addr: mac address to sync
+ *
+ * This is a callback function which is called by the in kernel device sync
+ * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only
+ * populates the tmp_sync_list, which is later used by ice_add_mac to add the
+ * mac filters from the hardware.
+ */
+static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+ struct ice_vsi *vsi = np->vsi;
+
+ if (ice_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr))
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * ice_add_mac_to_unsync_list - creates list of mac addresses to be unsynced
+ * @netdev: the net device on which the unsync is happening
+ * @addr: mac address to unsync
+ *
+ * This is a callback function which is called by the in kernel device unsync
+ * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only
+ * populates the tmp_unsync_list, which is later used by ice_remove_mac to
+ * delete the mac filters from the hardware.
+ */
+static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+ struct ice_vsi *vsi = np->vsi;
+
+ if (ice_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr))
+ return -EINVAL;
+
+ return 0;
+}
+
/**
* ice_free_fltr_list - free filter lists helper
* @dev: pointer to the device struct
}
}
+/**
+ * ice_vsi_fltr_changed - check if filter state changed
+ * @vsi: VSI to be checked
+ *
+ * returns true if filter state has changed, false otherwise.
+ */
+static bool ice_vsi_fltr_changed(struct ice_vsi *vsi)
+{
+ return test_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags) ||
+ test_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags) ||
+ test_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags);
+}
+
+/**
+ * ice_vsi_sync_fltr - Update the VSI filter list to the HW
+ * @vsi: ptr to the VSI
+ *
+ * Push any outstanding VSI filter changes through the AdminQ.
+ */
+static int ice_vsi_sync_fltr(struct ice_vsi *vsi)
+{
+ struct device *dev = &vsi->back->pdev->dev;
+ struct net_device *netdev = vsi->netdev;
+ bool promisc_forced_on = false;
+ struct ice_pf *pf = vsi->back;
+ struct ice_hw *hw = &pf->hw;
+ enum ice_status status = 0;
+ u32 changed_flags = 0;
+ int err = 0;
+
+ if (!vsi->netdev)
+ return -EINVAL;
+
+ while (test_and_set_bit(__ICE_CFG_BUSY, vsi->state))
+ usleep_range(1000, 2000);
+
+ changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;
+ vsi->current_netdev_flags = vsi->netdev->flags;
+
+ INIT_LIST_HEAD(&vsi->tmp_sync_list);
+ INIT_LIST_HEAD(&vsi->tmp_unsync_list);
+
+ if (ice_vsi_fltr_changed(vsi)) {
+ clear_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags);
+ clear_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags);
+ clear_bit(ICE_VSI_FLAG_VLAN_FLTR_CHANGED, vsi->flags);
+
+ /* grab the netdev's addr_list_lock */
+ netif_addr_lock_bh(netdev);
+ __dev_uc_sync(netdev, ice_add_mac_to_sync_list,
+ ice_add_mac_to_unsync_list);
+ __dev_mc_sync(netdev, ice_add_mac_to_sync_list,
+ ice_add_mac_to_unsync_list);
+ /* our temp lists are populated. release lock */
+ netif_addr_unlock_bh(netdev);
+ }
+
+ /* Remove mac addresses in the unsync list */
+ status = ice_remove_mac(hw, &vsi->tmp_unsync_list);
+ ice_free_fltr_list(dev, &vsi->tmp_unsync_list);
+ if (status) {
+ netdev_err(netdev, "Failed to delete MAC filters\n");
+ /* if we failed because of alloc failures, just bail */
+ if (status == ICE_ERR_NO_MEMORY) {
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+
+ /* Add mac addresses in the sync list */
+ status = ice_add_mac(hw, &vsi->tmp_sync_list);
+ ice_free_fltr_list(dev, &vsi->tmp_sync_list);
+ if (status) {
+ netdev_err(netdev, "Failed to add MAC filters\n");
+ /* If there is no more space for new umac filters, vsi
+ * should go into promiscuous mode. There should be some
+ * space reserved for promiscuous filters.
+ */
+ if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC &&
+ !test_and_set_bit(__ICE_FLTR_OVERFLOW_PROMISC,
+ vsi->state)) {
+ promisc_forced_on = true;
+ netdev_warn(netdev,
+ "Reached MAC filter limit, forcing promisc mode on VSI %d\n",
+ vsi->vsi_num);
+ } else {
+ err = -EIO;
+ goto out;
+ }
+ }
+ /* check for changes in promiscuous modes */
+ if (changed_flags & IFF_ALLMULTI)
+ netdev_warn(netdev, "Unsupported configuration\n");
+
+ if (((changed_flags & IFF_PROMISC) || promisc_forced_on) ||
+ test_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags)) {
+ clear_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags);
+ if (vsi->current_netdev_flags & IFF_PROMISC) {
+ /* Apply TX filter rule to get traffic from VMs */
+ status = ice_cfg_dflt_vsi(hw, vsi->vsi_num, true,
+ ICE_FLTR_TX);
+ if (status) {
+ netdev_err(netdev, "Error setting default VSI %i tx rule\n",
+ vsi->vsi_num);
+ vsi->current_netdev_flags &= ~IFF_PROMISC;
+ err = -EIO;
+ goto out_promisc;
+ }
+ /* Apply RX filter rule to get traffic from wire */
+ status = ice_cfg_dflt_vsi(hw, vsi->vsi_num, true,
+ ICE_FLTR_RX);
+ if (status) {
+ netdev_err(netdev, "Error setting default VSI %i rx rule\n",
+ vsi->vsi_num);
+ vsi->current_netdev_flags &= ~IFF_PROMISC;
+ err = -EIO;
+ goto out_promisc;
+ }
+ } else {
+ /* Clear TX filter rule to stop traffic from VMs */
+ status = ice_cfg_dflt_vsi(hw, vsi->vsi_num, false,
+ ICE_FLTR_TX);
+ if (status) {
+ netdev_err(netdev, "Error clearing default VSI %i tx rule\n",
+ vsi->vsi_num);
+ vsi->current_netdev_flags |= IFF_PROMISC;
+ err = -EIO;
+ goto out_promisc;
+ }
+ /* Clear filter RX to remove traffic from wire */
+ status = ice_cfg_dflt_vsi(hw, vsi->vsi_num, false,
+ ICE_FLTR_RX);
+ if (status) {
+ netdev_err(netdev, "Error clearing default VSI %i rx rule\n",
+ vsi->vsi_num);
+ vsi->current_netdev_flags |= IFF_PROMISC;
+ err = -EIO;
+ goto out_promisc;
+ }
+ }
+ }
+ goto exit;
+
+out_promisc:
+ set_bit(ICE_VSI_FLAG_PROMISC_CHANGED, vsi->flags);
+ goto exit;
+out:
+ /* if something went wrong then set the changed flag so we try again */
+ set_bit(ICE_VSI_FLAG_UMAC_FLTR_CHANGED, vsi->flags);
+ set_bit(ICE_VSI_FLAG_MMAC_FLTR_CHANGED, vsi->flags);
+exit:
+ clear_bit(__ICE_CFG_BUSY, vsi->state);
+ return err;
+}
+
+/**
+ * ice_sync_fltr_subtask - Sync the VSI filter list with HW
+ * @pf: board private structure
+ */
+static void ice_sync_fltr_subtask(struct ice_pf *pf)
+{
+ int v;
+
+ if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags)))
+ return;
+
+ clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
+
+ for (v = 0; v < pf->num_alloc_vsi; v++)
+ if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) &&
+ ice_vsi_sync_fltr(pf->vsi[v])) {
+ /* come back and try again later */
+ set_bit(ICE_FLAG_FLTR_SYNC, pf->flags);
+ break;
+ }
+}
+
/**
* ice_is_reset_recovery_pending - schedule a reset
* @state: pf state field
return;
}
+ ice_sync_fltr_subtask(pf);
ice_watchdog_subtask(pf);
ice_clean_adminq_subtask(pf);
ice_vsi_free_q_vectors(vsi);
err_rings:
if (vsi->netdev) {
+ vsi->current_netdev_flags = 0;
unregister_netdev(vsi->netdev);
free_netdev(vsi->netdev);
vsi->netdev = NULL;
}
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;
+ LIST_HEAD(a_mac_list);
+ LIST_HEAD(r_mac_list);
+ u8 flags = 0;
+ int err;
+ 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_recovery_pending(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. Note that for
+ * both these operations, we first need to form a "list" of mac
+ * addresses (even though in this case, we have only 1 mac address to be
+ * added/removed) and this done using ice_add_mac_to_list. Depending on
+ * the ensuing operation this "list" of mac addresses is either to be
+ * added or removed from the filter.
+ */
+ err = ice_add_mac_to_list(vsi, &r_mac_list, netdev->dev_addr);
+ if (err) {
+ err = -EADDRNOTAVAIL;
+ goto free_lists;
+ }
+
+ status = ice_remove_mac(hw, &r_mac_list);
+ if (status) {
+ err = -EADDRNOTAVAIL;
+ goto free_lists;
+ }
+
+ err = ice_add_mac_to_list(vsi, &a_mac_list, mac);
+ if (err) {
+ err = -EADDRNOTAVAIL;
+ goto free_lists;
+ }
+
+ status = ice_add_mac(hw, &a_mac_list);
+ if (status) {
+ err = -EADDRNOTAVAIL;
+ goto free_lists;
+ }
+
+free_lists:
+ /* free list entries */
+ ice_free_fltr_list(&pf->pdev->dev, &r_mac_list);
+ ice_free_fltr_list(&pf->pdev->dev, &a_mac_list);
+
+ 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.\n",
+ mac);
+ }
+ 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
+ */
+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)
+{
+ 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_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx
* @vsi: the vsi being changed
{
int err;
+ ice_set_rx_mode(vsi->netdev);
+
err = ice_restore_vlan(vsi);
if (err)
return err;
stats->rx_length_errors = vsi_stats->rx_length_errors;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/**
+ * ice_netpoll - polling "interrupt" handler
+ * @netdev: network interface device structure
+ *
+ * Used by netconsole to send skbs without having to re-enable interrupts.
+ * This is not called in the normal interrupt path.
+ */
+static void ice_netpoll(struct net_device *netdev)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+ struct ice_vsi *vsi = np->vsi;
+ struct ice_pf *pf = vsi->back;
+ int i;
+
+ if (test_bit(__ICE_DOWN, vsi->state) ||
+ !test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
+ return;
+
+ for (i = 0; i < vsi->num_q_vectors; i++)
+ ice_msix_clean_rings(0, vsi->q_vectors[i]);
+}
+#endif /* CONFIG_NET_POLL_CONTROLLER */
+
/**
* ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI
* @vsi: VSI having NAPI disabled
set_bit(__ICE_RESET_RECOVERY_PENDING, pf->state);
}
+/**
+ * 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 %d\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_recovery_pending(pf->state)) {
+ count++;
+ usleep_range(1000, 2000);
+ } else {
+ break;
+ }
+
+ } while (count < 100);
+
+ if (count == 100) {
+ netdev_err(netdev, "can't change mtu. Device is busy\n");
+ return -EBUSY;
+ }
+
+ netdev->mtu = new_mtu;
+
+ /* if VSI is up, bring it down and then back up */
+ if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
+ int err;
+
+ err = ice_down(vsi);
+ if (err) {
+ netdev_err(netdev, "change mtu if_up err %d\n", err);
+ return err;
+ }
+
+ err = ice_up(vsi);
+ if (err) {
+ netdev_err(netdev, "change mtu if_up err %d\n", err);
+ return err;
+ }
+ }
+
+ netdev_dbg(netdev, "changed mtu to %d\n", new_mtu);
+ return 0;
+}
+
/**
* ice_set_rss - Set RSS keys and lut
* @vsi: Pointer to VSI structure
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_ops = {
.ndo_open = ice_open,
.ndo_stop = ice_stop,
.ndo_start_xmit = ice_start_xmit,
+ .ndo_features_check = ice_features_check,
+ .ndo_set_rx_mode = ice_set_rx_mode,
+ .ndo_set_mac_address = ice_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = ice_change_mtu,
.ndo_get_stats64 = ice_get_stats64,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = ice_netpoll,
+#endif /* CONFIG_NET_POLL_CONTROLLER */
.ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
.ndo_set_features = ice_set_features,
+ .ndo_fdb_add = ice_fdb_add,
+ .ndo_fdb_del = ice_fdb_del,
};
projects / users / willy / pagecache.git / commitdiff