Commit message: i40e: prevent memory leak in i40e_setup_macvlans

In i40e_setup_macvlans if i40e_setup_channel fails the allocated memory
for ch should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CVE: CVE-2019-19043
CWE: CWE-401
Vulnerability description: A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.

Project: linux
File: i40e_main.c

static int i40e_get_capabilities(struct i40e_pf *pf,
				 enum i40e_admin_queue_opc list_type)
{
	struct i40e_aqc_list_capabilities_element_resp *cap_buf;
	u16 data_size;
	int buf_len;
	int err;

	buf_len = 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp);
	do {
		cap_buf = kzalloc(buf_len, GFP_KERNEL);
		if (!cap_buf)
			return -ENOMEM;

		/* this loads the data into the hw struct for us */
		err = i40e_aq_discover_capabilities(&pf->hw, cap_buf, buf_len,
						    &data_size, list_type,
						    NULL);
		/* data loaded, buffer no longer needed */
		kfree(cap_buf);

		if (pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) {
			/* retry with a larger buffer */
			buf_len = data_size;
		} else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK) {
			dev_info(&pf->pdev->dev,
				 "capability discovery failed, err %s aq_err %s\n",
				 i40e_stat_str(&pf->hw, err),
				 i40e_aq_str(&pf->hw,
					     pf->hw.aq.asq_last_status));
			return -ENODEV;
		}
	} while (err);

	if (pf->hw.debug_mask & I40E_DEBUG_USER) {
		if (list_type == i40e_aqc_opc_list_func_capabilities) {
			dev_info(&pf->pdev->dev,
				 "pf=%d, num_vfs=%d, msix_pf=%d, msix_vf=%d, fd_g=%d, fd_b=%d, pf_max_q=%d num_vsi=%d\n",
				 pf->hw.pf_id, pf->hw.func_caps.num_vfs,
				 pf->hw.func_caps.num_msix_vectors,
				 pf->hw.func_caps.num_msix_vectors_vf,
				 pf->hw.func_caps.fd_filters_guaranteed,
				 pf->hw.func_caps.fd_filters_best_effort,
				 pf->hw.func_caps.num_tx_qp,
				 pf->hw.func_caps.num_vsis);
		} else if (list_type == i40e_aqc_opc_list_dev_capabilities) {
			dev_info(&pf->pdev->dev,
				 "switch_mode=0x%04x, function_valid=0x%08x\n",
				 pf->hw.dev_caps.switch_mode,
				 pf->hw.dev_caps.valid_functions);
			dev_info(&pf->pdev->dev,
				 "SR-IOV=%d, num_vfs for all function=%u\n",
				 pf->hw.dev_caps.sr_iov_1_1,
				 pf->hw.dev_caps.num_vfs);
			dev_info(&pf->pdev->dev,
				 "num_vsis=%u, num_rx:%u, num_tx=%u\n",
				 pf->hw.dev_caps.num_vsis,
				 pf->hw.dev_caps.num_rx_qp,
				 pf->hw.dev_caps.num_tx_qp);
		}
	}
	if (list_type == i40e_aqc_opc_list_func_capabilities) {
#define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
		       + pf->hw.func_caps.num_vfs)
		if (pf->hw.revision_id == 0 &&
		    pf->hw.func_caps.num_vsis < DEF_NUM_VSI) {
			dev_info(&pf->pdev->dev,
				 "got num_vsis %d, setting num_vsis to %d\n",
				 pf->hw.func_caps.num_vsis, DEF_NUM_VSI);
			pf->hw.func_caps.num_vsis = DEF_NUM_VSI;
		}
	}
	return 0;
}

Project: linux
File: i40e_main.c

static bool i40e_check_recovery_mode(struct i40e_pf *pf)
{
	u32 val = rd32(&pf->hw, I40E_GL_FWSTS) & I40E_GL_FWSTS_FWS1B_MASK;
	bool is_recovery_mode = false;

	if (pf->hw.mac.type == I40E_MAC_XL710)
		is_recovery_mode =
		val == I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_CORER_MASK ||
		val == I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_GLOBR_MASK ||
		val == I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_TRANSITION_MASK ||
		val == I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_NVM_MASK;
	if (pf->hw.mac.type == I40E_MAC_X722)
		is_recovery_mode =
		val == I40E_X722_GL_FWSTS_FWS1B_REC_MOD_CORER_MASK ||
		val == I40E_X722_GL_FWSTS_FWS1B_REC_MOD_GLOBR_MASK;
	if (is_recovery_mode) {
		dev_notice(&pf->pdev->dev, "Firmware recovery mode detected. Limiting functionality.\n");
		dev_notice(&pf->pdev->dev, "Refer to the Intel(R) Ethernet Adapters and Devices User Guide for details on firmware recovery mode.\n");
		set_bit(__I40E_RECOVERY_MODE, pf->state);

		return true;
	}
	if (test_and_clear_bit(__I40E_RECOVERY_MODE, pf->state))
		dev_info(&pf->pdev->dev, "Reinitializing in normal mode with full functionality.\n");

	return false;
}

Project: linux
File: i40e_main.c

static void i40e_queue_pair_toggle_napi(struct i40e_vsi *vsi, int queue_pair,
					bool enable)
{
	struct i40e_ring *rxr = vsi->rx_rings[queue_pair];
	struct i40e_q_vector *q_vector = rxr->q_vector;

	if (!vsi->netdev)
		return;

	/* All rings in a qp belong to the same qvector. */
	if (q_vector->rx.ring || q_vector->tx.ring) {
		if (enable)
			napi_enable(&q_vector->napi);
		else
			napi_disable(&q_vector->napi);
	}
}

Project: linux
File: i40e_main.c

static void i40e_vsi_update_queue_map(struct i40e_vsi *vsi,
				      struct i40e_vsi_context *ctxt)
{
	/* copy just the sections touched not the entire info
	 * since not all sections are valid as returned by
	 * update vsi params
	 */
	vsi->info.mapping_flags = ctxt->info.mapping_flags;
	memcpy(&vsi->info.queue_mapping,
	       &ctxt->info.queue_mapping, sizeof(vsi->info.queue_mapping));
	memcpy(&vsi->info.tc_mapping, ctxt->info.tc_mapping,
	       sizeof(vsi->info.tc_mapping));
}

Project: linux
File: i40e_main.c

int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
{
	struct i40e_pf *pf = vsi->back;

	if (pf->hw_features & I40E_HW_RSS_AQ_CAPABLE)
		return i40e_config_rss_aq(vsi, seed, lut, lut_size);
	else
		return i40e_config_rss_reg(vsi, seed, lut, lut_size);
}

Project: linux
File: i40e_main.c

static int i40e_vsi_alloc_q_vector(struct i40e_vsi *vsi, int v_idx, int cpu)
{
	struct i40e_q_vector *q_vector;

	/* allocate q_vector */
	q_vector = kzalloc(sizeof(struct i40e_q_vector), GFP_KERNEL);
	if (!q_vector)
		return -ENOMEM;

	q_vector->vsi = vsi;
	q_vector->v_idx = v_idx;
	cpumask_copy(&q_vector->affinity_mask, cpu_possible_mask);

	if (vsi->netdev)
		netif_napi_add(vsi->netdev, &q_vector->napi,
			       i40e_napi_poll, NAPI_POLL_WEIGHT);

	/* tie q_vector and vsi together */
	vsi->q_vectors[v_idx] = q_vector;

	return 0;
}

Project: linux
File: i40e_main.c

int i40e_vsi_open(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	char int_name[I40E_INT_NAME_STR_LEN];
	int err;

	/* allocate descriptors */
	err = i40e_vsi_setup_tx_resources(vsi);
	if (err)
		goto err_setup_tx;
	err = i40e_vsi_setup_rx_resources(vsi);
	if (err)
		goto err_setup_rx;

	err = i40e_vsi_configure(vsi);
	if (err)
		goto err_setup_rx;

	if (vsi->netdev) {
		snprintf(int_name, sizeof(int_name) - 1, "%s-%s",
			 dev_driver_string(&pf->pdev->dev), vsi->netdev->name);
		err = i40e_vsi_request_irq(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_queue_pairs);
		if (err)
			goto err_set_queues;

		err = netif_set_real_num_rx_queues(vsi->netdev,
						   vsi->num_queue_pairs);
		if (err)
			goto err_set_queues;

	} else if (vsi->type == I40E_VSI_FDIR) {
		snprintf(int_name, sizeof(int_name) - 1, "%s-%s:fdir",
			 dev_driver_string(&pf->pdev->dev),
			 dev_name(&pf->pdev->dev));
		err = i40e_vsi_request_irq(vsi, int_name);

	} else {
		err = -EINVAL;
		goto err_setup_rx;
	}

	err = i40e_up_complete(vsi);
	if (err)
		goto err_up_complete;

	return 0;

err_up_complete:
	i40e_down(vsi);
err_set_queues:
	i40e_vsi_free_irq(vsi);
err_setup_rx:
	i40e_vsi_free_rx_resources(vsi);
err_setup_tx:
	i40e_vsi_free_tx_resources(vsi);
	if (vsi == pf->vsi[pf->lan_vsi])
		i40e_do_reset(pf, I40E_PF_RESET_FLAG, true);

	return err;
}

Project: linux
File: i40e_main.c

u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
{
	u32 val, fcnt_prog;

	val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
	fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK);
	return fcnt_prog;
}

Project: linux
File: i40e_main.c

static int i40e_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
				  void *cb_priv)
{
	struct i40e_netdev_priv *np = cb_priv;

	if (!tc_cls_can_offload_and_chain0(np->vsi->netdev, type_data))
		return -EOPNOTSUPP;

	switch (type) {
	case TC_SETUP_CLSFLOWER:
		return i40e_setup_tc_cls_flower(np, type_data);

	default:
		return -EOPNOTSUPP;
	}
}

Project: linux
File: i40e_main.c

int i40e_control_wait_tx_q(int seid, struct i40e_pf *pf, int pf_q,
			   bool is_xdp, bool enable)
{
	int ret;

	i40e_control_tx_q(pf, pf_q, enable);

	/* wait for the change to finish */
	ret = i40e_pf_txq_wait(pf, pf_q, enable);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "VSI seid %d %sTx ring %d %sable timeout\n",
			 seid, (is_xdp ? "XDP " : ""), pf_q,
			 (enable ? "en" : "dis"));
	}

	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_prep_for_reset(struct i40e_pf *pf, bool lock_acquired)
{
	struct i40e_hw *hw = &pf->hw;
	i40e_status ret = 0;
	u32 v;

	clear_bit(__I40E_RESET_INTR_RECEIVED, pf->state);
	if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING, pf->state))
		return;
	if (i40e_check_asq_alive(&pf->hw))
		i40e_vc_notify_reset(pf);

	dev_dbg(&pf->pdev->dev, "Tearing down internal switch for reset\n");

	/* quiesce the VSIs and their queues that are not already DOWN */
	/* pf_quiesce_all_vsi modifies netdev structures -rtnl_lock needed */
	if (!lock_acquired)
		rtnl_lock();
	i40e_pf_quiesce_all_vsi(pf);
	if (!lock_acquired)
		rtnl_unlock();

	for (v = 0; v < pf->num_alloc_vsi; v++) {
		if (pf->vsi[v])
			pf->vsi[v]->seid = 0;
	}

	i40e_shutdown_adminq(&pf->hw);

	/* call shutdown HMC */
	if (hw->hmc.hmc_obj) {
		ret = i40e_shutdown_lan_hmc(hw);
		if (ret)
			dev_warn(&pf->pdev->dev,
				 "shutdown_lan_hmc failed: %d\n", ret);
	}

	/* Save the current PTP time so that we can restore the time after the
	 * reset completes.
	 */
	i40e_ptp_save_hw_time(pf);
}

Project: linux
File: i40e_main.c

static int __i40e_setup_tc(struct net_device *netdev, enum tc_setup_type type,
			   void *type_data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);

	switch (type) {
	case TC_SETUP_QDISC_MQPRIO:
		return i40e_setup_tc(netdev, type_data);
	case TC_SETUP_BLOCK:
		return flow_block_cb_setup_simple(type_data,
						  &i40e_block_cb_list,
						  i40e_setup_tc_block_cb,
						  np, np, true);
	default:
		return -EOPNOTSUPP;
	}
}

Project: linux
File: i40e_main.c

void i40e_vsi_remove_pvid(struct i40e_vsi *vsi)
{
	vsi->info.pvid = 0;

	i40e_vlan_stripping_disable(vsi);
}

Project: linux
File: i40e_main.c

static int i40e_restore_interrupt_scheme(struct i40e_pf *pf)
{
	int err, i;

	/* We cleared the MSI and MSI-X flags when disabling the old interrupt
	 * scheme. We need to re-enabled them here in order to attempt to
	 * re-acquire the MSI or MSI-X vectors
	 */
	pf->flags |= (I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED);

	err = i40e_init_interrupt_scheme(pf);
	if (err)
		return err;

	/* Now that we've re-acquired IRQs, we need to remap the vectors and
	 * rings together again.
	 */
	for (i = 0; i < pf->num_alloc_vsi; i++) {
		if (pf->vsi[i]) {
			err = i40e_vsi_alloc_q_vectors(pf->vsi[i]);
			if (err)
				goto err_unwind;
			i40e_vsi_map_rings_to_vectors(pf->vsi[i]);
		}
	}

	err = i40e_setup_misc_vector(pf);
	if (err)
		goto err_unwind;

	if (pf->flags & I40E_FLAG_IWARP_ENABLED)
		i40e_client_update_msix_info(pf);

	return 0;

err_unwind:
	while (i--) {
		if (pf->vsi[i])
			i40e_vsi_free_q_vectors(pf->vsi[i]);
	}

	return err;
}

Project: linux
File: i40e_main.c

static void i40e_undo_del_filter_entries(struct i40e_vsi *vsi,
					 struct hlist_head *from)
{
	struct i40e_mac_filter *f;
	struct hlist_node *h;

	hlist_for_each_entry_safe(f, h, from, hlist) {
		u64 key = i40e_addr_to_hkey(f->macaddr);

		/* Move the element back into MAC filter list*/
		hlist_del(&f->hlist);
		hash_add(vsi->mac_filter_hash, &f->hlist, key);
	}
}

Project: linux
File: i40e_main.c

i40e_update_filter_state(int count,
			 struct i40e_aqc_add_macvlan_element_data *add_list,
			 struct i40e_new_mac_filter *add_head)
{
	int retval = 0;
	int i;

	for (i = 0; i < count; i++) {
		/* Always check status of each filter. We don't need to check
		 * the firmware return status because we pre-set the filter
		 * status to I40E_AQC_MM_ERR_NO_RES when sending the filter
		 * request to the adminq. Thus, if it no longer matches then
		 * we know the filter is active.
		 */
		if (add_list[i].match_method == I40E_AQC_MM_ERR_NO_RES) {
			add_head->state = I40E_FILTER_FAILED;
		} else {
			add_head->state = I40E_FILTER_ACTIVE;
			retval++;
		}

		add_head = i40e_next_filter(add_head);
		if (!add_head)
			break;
	}

	return retval;
}

Project: linux
File: i40e_main.c

static void i40e_vsi_config_netdev_tc(struct i40e_vsi *vsi, u8 enabled_tc)
{
	struct net_device *netdev = vsi->netdev;
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u8 netdev_tc = 0;
	int i;
	struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config;

	if (!netdev)
		return;

	if (!enabled_tc) {
		netdev_reset_tc(netdev);
		return;
	}

	/* Set up actual enabled TCs on the VSI */
	if (netdev_set_num_tc(netdev, vsi->tc_config.numtc))
		return;

	/* set per TC queues for the VSI */
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		/* Only set TC queues for enabled tcs
		 *
		 * e.g. For a VSI that has TC0 and TC3 enabled the
		 * enabled_tc bitmap would be 0x00001001; the driver
		 * will set the numtc for netdev as 2 that will be
		 * referenced by the netdev layer as TC 0 and 1.
		 */
		if (vsi->tc_config.enabled_tc & BIT(i))
			netdev_set_tc_queue(netdev,
					vsi->tc_config.tc_info[i].netdev_tc,
					vsi->tc_config.tc_info[i].qcount,
					vsi->tc_config.tc_info[i].qoffset);
	}

	if (pf->flags & I40E_FLAG_TC_MQPRIO)
		return;

	/* Assign UP2TC map for the VSI */
	for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
		/* Get the actual TC# for the UP */
		u8 ets_tc = dcbcfg->etscfg.prioritytable[i];
		/* Get the mapped netdev TC# for the UP */
		netdev_tc =  vsi->tc_config.tc_info[ets_tc].netdev_tc;
		netdev_set_prio_tc_map(netdev, i, netdev_tc);
	}
}

Project: linux
File: i40e_main.c

static int i40e_pf_config_rss(struct i40e_pf *pf)
{
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
	u8 seed[I40E_HKEY_ARRAY_SIZE];
	u8 *lut;
	struct i40e_hw *hw = &pf->hw;
	u32 reg_val;
	u64 hena;
	int ret;

	/* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
	hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
		((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
	hena |= i40e_pf_get_default_rss_hena(pf);

	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));

	/* Determine the RSS table size based on the hardware capabilities */
	reg_val = i40e_read_rx_ctl(hw, I40E_PFQF_CTL_0);
	reg_val = (pf->rss_table_size == 512) ?
			(reg_val | I40E_PFQF_CTL_0_HASHLUTSIZE_512) :
			(reg_val & ~I40E_PFQF_CTL_0_HASHLUTSIZE_512);
	i40e_write_rx_ctl(hw, I40E_PFQF_CTL_0, reg_val);

	/* Determine the RSS size of the VSI */
	if (!vsi->rss_size) {
		u16 qcount;
		/* If the firmware does something weird during VSI init, we
		 * could end up with zero TCs. Check for that to avoid
		 * divide-by-zero. It probably won't pass traffic, but it also
		 * won't panic.
		 */
		qcount = vsi->num_queue_pairs /
			 (vsi->tc_config.numtc ? vsi->tc_config.numtc : 1);
		vsi->rss_size = min_t(int, pf->alloc_rss_size, qcount);
	}
	if (!vsi->rss_size)
		return -EINVAL;

	lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
	if (!lut)
		return -ENOMEM;

	/* Use user configured lut if there is one, otherwise use default */
	if (vsi->rss_lut_user)
		memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size);
	else
		i40e_fill_rss_lut(pf, lut, vsi->rss_table_size, vsi->rss_size);

	/* Use user configured hash key if there is one, otherwise
	 * use default.
	 */
	if (vsi->rss_hkey_user)
		memcpy(seed, vsi->rss_hkey_user, I40E_HKEY_ARRAY_SIZE);
	else
		netdev_rss_key_fill((void *)seed, I40E_HKEY_ARRAY_SIZE);
	ret = i40e_config_rss(vsi, seed, lut, vsi->rss_table_size);
	kfree(lut);

	return ret;
}

Project: linux
File: i40e_main.c

static u8 i40e_pf_get_tc_map(struct i40e_pf *pf)
{
	if (pf->flags & I40E_FLAG_TC_MQPRIO)
		return i40e_mqprio_get_enabled_tc(pf);

	/* If neither MQPRIO nor DCB is enabled for this PF then just return
	 * default TC
	 */
	if (!(pf->flags & I40E_FLAG_DCB_ENABLED))
		return I40E_DEFAULT_TRAFFIC_CLASS;

	/* SFP mode we want PF to be enabled for all TCs */
	if (!(pf->flags & I40E_FLAG_MFP_ENABLED))
		return i40e_dcb_get_enabled_tc(&pf->hw.local_dcbx_config);

	/* MFP enabled and iSCSI PF type */
	if (pf->hw.func_caps.iscsi)
		return i40e_get_iscsi_tc_map(pf);
	else
		return I40E_DEFAULT_TRAFFIC_CLASS;
}

Project: linux
File: i40e_main.c

static int i40e_configure_tx_ring(struct i40e_ring *ring)
{
	struct i40e_vsi *vsi = ring->vsi;
	u16 pf_q = vsi->base_queue + ring->queue_index;
	struct i40e_hw *hw = &vsi->back->hw;
	struct i40e_hmc_obj_txq tx_ctx;
	i40e_status err = 0;
	u32 qtx_ctl = 0;

	if (ring_is_xdp(ring))
		ring->xsk_umem = i40e_xsk_umem(ring);

	/* some ATR related tx ring init */
	if (vsi->back->flags & I40E_FLAG_FD_ATR_ENABLED) {
		ring->atr_sample_rate = vsi->back->atr_sample_rate;
		ring->atr_count = 0;
	} else {
		ring->atr_sample_rate = 0;
	}

	/* configure XPS */
	i40e_config_xps_tx_ring(ring);

	/* clear the context structure first */
	memset(&tx_ctx, 0, sizeof(tx_ctx));

	tx_ctx.new_context = 1;
	tx_ctx.base = (ring->dma / 128);
	tx_ctx.qlen = ring->count;
	tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FD_SB_ENABLED |
					       I40E_FLAG_FD_ATR_ENABLED));
	tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP);
	/* FDIR VSI tx ring can still use RS bit and writebacks */
	if (vsi->type != I40E_VSI_FDIR)
		tx_ctx.head_wb_ena = 1;
	tx_ctx.head_wb_addr = ring->dma +
			      (ring->count * sizeof(struct i40e_tx_desc));

	/* As part of VSI creation/update, FW allocates certain
	 * Tx arbitration queue sets for each TC enabled for
	 * the VSI. The FW returns the handles to these queue
	 * sets as part of the response buffer to Add VSI,
	 * Update VSI, etc. AQ commands. It is expected that
	 * these queue set handles be associated with the Tx
	 * queues by the driver as part of the TX queue context
	 * initialization. This has to be done regardless of
	 * DCB as by default everything is mapped to TC0.
	 */

	if (ring->ch)
		tx_ctx.rdylist =
			le16_to_cpu(ring->ch->info.qs_handle[ring->dcb_tc]);

	else
		tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[ring->dcb_tc]);

	tx_ctx.rdylist_act = 0;

	/* clear the context in the HMC */
	err = i40e_clear_lan_tx_queue_context(hw, pf_q);
	if (err) {
		dev_info(&vsi->back->pdev->dev,
			 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
			 ring->queue_index, pf_q, err);
		return -ENOMEM;
	}

	/* set the context in the HMC */
	err = i40e_set_lan_tx_queue_context(hw, pf_q, &tx_ctx);
	if (err) {
		dev_info(&vsi->back->pdev->dev,
			 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
			 ring->queue_index, pf_q, err);
		return -ENOMEM;
	}

	/* Now associate this queue with this PCI function */
	if (ring->ch) {
		if (ring->ch->type == I40E_VSI_VMDQ2)
			qtx_ctl = I40E_QTX_CTL_VM_QUEUE;
		else
			return -EINVAL;

		qtx_ctl |= (ring->ch->vsi_number <<
			    I40E_QTX_CTL_VFVM_INDX_SHIFT) &
			    I40E_QTX_CTL_VFVM_INDX_MASK;
	} else {
		if (vsi->type == I40E_VSI_VMDQ2) {
			qtx_ctl = I40E_QTX_CTL_VM_QUEUE;
			qtx_ctl |= ((vsi->id) << I40E_QTX_CTL_VFVM_INDX_SHIFT) &
				    I40E_QTX_CTL_VFVM_INDX_MASK;
		} else {
			qtx_ctl = I40E_QTX_CTL_PF_QUEUE;
		}
	}

	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) &
		    I40E_QTX_CTL_PF_INDX_MASK);
	wr32(hw, I40E_QTX_CTL(pf_q), qtx_ctl);
	i40e_flush(hw);

	/* cache tail off for easier writes later */
	ring->tail = hw->hw_addr + I40E_QTX_TAIL(pf_q);

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_pf_quiesce_all_vsi(struct i40e_pf *pf)
{
	int v;

	for (v = 0; v < pf->num_alloc_vsi; v++) {
		if (pf->vsi[v])
			i40e_quiesce_vsi(pf->vsi[v]);
	}
}

Project: linux
File: i40e_main.c

static int i40e_init_recovery_mode(struct i40e_pf *pf, struct i40e_hw *hw)
{
	struct i40e_vsi *vsi;
	int err;
	int v_idx;

	pci_save_state(pf->pdev);

	/* set up periodic task facility */
	timer_setup(&pf->service_timer, i40e_service_timer, 0);
	pf->service_timer_period = HZ;

	INIT_WORK(&pf->service_task, i40e_service_task);
	clear_bit(__I40E_SERVICE_SCHED, pf->state);

	err = i40e_init_interrupt_scheme(pf);
	if (err)
		goto err_switch_setup;

	/* The number of VSIs reported by the FW is the minimum guaranteed
	 * to us; HW supports far more and we share the remaining pool with
	 * the other PFs. We allocate space for more than the guarantee with
	 * the understanding that we might not get them all later.
	 */
	if (pf->hw.func_caps.num_vsis < I40E_MIN_VSI_ALLOC)
		pf->num_alloc_vsi = I40E_MIN_VSI_ALLOC;
	else
		pf->num_alloc_vsi = pf->hw.func_caps.num_vsis;

	/* Set up the vsi struct and our local tracking of the MAIN PF vsi. */
	pf->vsi = kcalloc(pf->num_alloc_vsi, sizeof(struct i40e_vsi *),
			  GFP_KERNEL);
	if (!pf->vsi) {
		err = -ENOMEM;
		goto err_switch_setup;
	}

	/* We allocate one VSI which is needed as absolute minimum
	 * in order to register the netdev
	 */
	v_idx = i40e_vsi_mem_alloc(pf, I40E_VSI_MAIN);
	if (v_idx < 0)
		goto err_switch_setup;
	pf->lan_vsi = v_idx;
	vsi = pf->vsi[v_idx];
	if (!vsi)
		goto err_switch_setup;
	vsi->alloc_queue_pairs = 1;
	err = i40e_config_netdev(vsi);
	if (err)
		goto err_switch_setup;
	err = register_netdev(vsi->netdev);
	if (err)
		goto err_switch_setup;
	vsi->netdev_registered = true;
	i40e_dbg_pf_init(pf);

	err = i40e_setup_misc_vector_for_recovery_mode(pf);
	if (err)
		goto err_switch_setup;

	/* tell the firmware that we're starting */
	i40e_send_version(pf);

	/* since everything's happy, start the service_task timer */
	mod_timer(&pf->service_timer,
		  round_jiffies(jiffies + pf->service_timer_period));

	return 0;

err_switch_setup:
	i40e_reset_interrupt_capability(pf);
	del_timer_sync(&pf->service_timer);
	i40e_shutdown_adminq(hw);
	iounmap(hw->hw_addr);
	pci_disable_pcie_error_reporting(pf->pdev);
	pci_release_mem_regions(pf->pdev);
	pci_disable_device(pf->pdev);
	kfree(pf);

	return err;
}

Project: linux
File: i40e_main.c

void i40e_rm_vlan_all_mac(struct i40e_vsi *vsi, s16 vid)
{
	struct i40e_mac_filter *f;
	struct hlist_node *h;
	int bkt;

	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
		if (f->vlan == vid)
			__i40e_del_filter(vsi, f);
	}
}

Project: linux
File: i40e_main.c

static void i40e_switch_branch_release(struct i40e_veb *branch)
{
	struct i40e_pf *pf = branch->pf;
	u16 branch_seid = branch->seid;
	u16 veb_idx = branch->idx;
	int i;

	/* release any VEBs on this VEB - RECURSION */
	for (i = 0; i < I40E_MAX_VEB; i++) {
		if (!pf->veb[i])
			continue;
		if (pf->veb[i]->uplink_seid == branch->seid)
			i40e_switch_branch_release(pf->veb[i]);
	}

	/* Release the VSIs on this VEB, but not the owner VSI.
	 *
	 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
	 *       the VEB itself, so don't use (*branch) after this loop.
	 */
	for (i = 0; i < pf->num_alloc_vsi; i++) {
		if (!pf->vsi[i])
			continue;
		if (pf->vsi[i]->uplink_seid == branch_seid &&
		   (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
			i40e_vsi_release(pf->vsi[i]);
		}
	}

	/* There's one corner case where the VEB might not have been
	 * removed, so double check it here and remove it if needed.
	 * This case happens if the veb was created from the debugfs
	 * commands and no VSIs were added to it.
	 */
	if (pf->veb[veb_idx])
		i40e_veb_release(pf->veb[veb_idx]);
}

Project: linux
File: i40e_main.c

void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut,
		       u16 rss_table_size, u16 rss_size)
{
	u16 i;

	for (i = 0; i < rss_table_size; i++)
		lut[i] = i % rss_size;
}

Project: linux
File: i40e_main.c

static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;

	if (i40e_enabled_xdp_vsi(vsi)) {
		int frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;

		if (frame_size > i40e_max_xdp_frame_size(vsi))
			return -EINVAL;
	}

	netdev_info(netdev, "changing MTU from %d to %d\n",
		    netdev->mtu, new_mtu);
	netdev->mtu = new_mtu;
	if (netif_running(netdev))
		i40e_vsi_reinit_locked(vsi);
	set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state);
	set_bit(__I40E_CLIENT_L2_CHANGE, pf->state);
	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_free_q_vector(struct i40e_vsi *vsi, int v_idx)
{
	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
	struct i40e_ring *ring;

	if (!q_vector)
		return;

	/* disassociate q_vector from rings */
	i40e_for_each_ring(ring, q_vector->tx)
		ring->q_vector = NULL;

	i40e_for_each_ring(ring, q_vector->rx)
		ring->q_vector = NULL;

	/* only VSI w/ an associated netdev is set up w/ NAPI */
	if (vsi->netdev)
		netif_napi_del(&q_vector->napi);

	vsi->q_vectors[v_idx] = NULL;

	kfree_rcu(q_vector, rcu);
}

Project: linux
File: i40e_main.c

static int i40e_fwd_ring_up(struct i40e_vsi *vsi, struct net_device *vdev,
			    struct i40e_fwd_adapter *fwd)
{
	int ret = 0, num_tc = 1,  i, aq_err;
	struct i40e_channel *ch, *ch_tmp;
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;

	if (list_empty(&vsi->macvlan_list))
		return -EINVAL;

	/* Go through the list and find an available channel */
	list_for_each_entry_safe(ch, ch_tmp, &vsi->macvlan_list, list) {
		if (!i40e_is_channel_macvlan(ch)) {
			ch->fwd = fwd;
			/* record configuration for macvlan interface in vdev */
			for (i = 0; i < num_tc; i++)
				netdev_bind_sb_channel_queue(vsi->netdev, vdev,
							     i,
							     ch->num_queue_pairs,
							     ch->base_queue);
			for (i = 0; i < ch->num_queue_pairs; i++) {
				struct i40e_ring *tx_ring, *rx_ring;
				u16 pf_q;

				pf_q = ch->base_queue + i;

				/* Get to TX ring ptr */
				tx_ring = vsi->tx_rings[pf_q];
				tx_ring->ch = ch;

				/* Get the RX ring ptr */
				rx_ring = vsi->rx_rings[pf_q];
				rx_ring->ch = ch;
			}
			break;
		}
	}

	/* Guarantee all rings are updated before we update the
	 * MAC address filter.
	 */
	wmb();

	/* Add a mac filter */
	ret = i40e_add_macvlan_filter(hw, ch->seid, vdev->dev_addr, &aq_err);
	if (ret) {
		/* if we cannot add the MAC rule then disable the offload */
		macvlan_release_l2fw_offload(vdev);
		for (i = 0; i < ch->num_queue_pairs; i++) {
			struct i40e_ring *rx_ring;
			u16 pf_q;

			pf_q = ch->base_queue + i;
			rx_ring = vsi->rx_rings[pf_q];
			rx_ring->netdev = NULL;
		}
		dev_info(&pf->pdev->dev,
			 "Error adding mac filter on macvlan err %s, aq_err %s\n",
			  i40e_stat_str(hw, ret),
			  i40e_aq_str(hw, aq_err));
		netdev_err(vdev, "L2fwd offload disabled to L2 filter error\n");
	}

	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_sync_filters_subtask(struct i40e_pf *pf)
{
	int v;

	if (!pf)
		return;
	if (!test_and_clear_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state))
		return;
	if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) {
		set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);
		return;
	}

	for (v = 0; v < pf->num_alloc_vsi; v++) {
		if (pf->vsi[v] &&
		    (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED)) {
			int ret = i40e_sync_vsi_filters(pf->vsi[v]);

			if (ret) {
				/* come back and try again later */
				set_bit(__I40E_MACVLAN_SYNC_PENDING,
					pf->state);
				break;
			}
		}
	}
	clear_bit(__I40E_VF_DISABLE, pf->state);
}

Project: linux
File: i40e_main.c

static void i40e_queue_pair_reset_stats(struct i40e_vsi *vsi, int queue_pair)
{
	memset(&vsi->rx_rings[queue_pair]->rx_stats, 0,
	       sizeof(vsi->rx_rings[queue_pair]->rx_stats));
	memset(&vsi->tx_rings[queue_pair]->stats, 0,
	       sizeof(vsi->tx_rings[queue_pair]->stats));
	if (i40e_enabled_xdp_vsi(vsi)) {
		memset(&vsi->xdp_rings[queue_pair]->stats, 0,
		       sizeof(vsi->xdp_rings[queue_pair]->stats));
	}
}

Project: linux
File: i40e_main.c

static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
{
	u32 nextqp = i40e_enabled_xdp_vsi(vsi) ? vsi->alloc_queue_pairs : 0;
	struct i40e_q_vector *q_vector = vsi->q_vectors[0];
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u32 val;

	/* set the ITR configuration */
	q_vector->rx.next_update = jiffies + 1;
	q_vector->rx.target_itr = ITR_TO_REG(vsi->rx_rings[0]->itr_setting);
	wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), q_vector->rx.target_itr >> 1);
	q_vector->rx.current_itr = q_vector->rx.target_itr;
	q_vector->tx.next_update = jiffies + 1;
	q_vector->tx.target_itr = ITR_TO_REG(vsi->tx_rings[0]->itr_setting);
	wr32(hw, I40E_PFINT_ITR0(I40E_TX_ITR), q_vector->tx.target_itr >> 1);
	q_vector->tx.current_itr = q_vector->tx.target_itr;

	i40e_enable_misc_int_causes(pf);

	/* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
	wr32(hw, I40E_PFINT_LNKLST0, 0);

	/* Associate the queue pair to the vector and enable the queue int */
	val = I40E_QINT_RQCTL_CAUSE_ENA_MASK		       |
	      (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT)  |
	      (nextqp	   << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT)|
	      (I40E_QUEUE_TYPE_TX << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);

	wr32(hw, I40E_QINT_RQCTL(0), val);

	if (i40e_enabled_xdp_vsi(vsi)) {
		val = I40E_QINT_TQCTL_CAUSE_ENA_MASK		     |
		      (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT)|
		      (I40E_QUEUE_TYPE_TX
		       << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);

		wr32(hw, I40E_QINT_TQCTL(nextqp), val);
	}

	val = I40E_QINT_TQCTL_CAUSE_ENA_MASK		      |
	      (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) |
	      (I40E_QUEUE_END_OF_LIST << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT);

	wr32(hw, I40E_QINT_TQCTL(0), val);
	i40e_flush(hw);
}

Project: linux
File: i40e_main.c

static int i40e_setup_tc(struct net_device *netdev, void *type_data)
{
	struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	u8 enabled_tc = 0, num_tc, hw;
	bool need_reset = false;
	int old_queue_pairs;
	int ret = -EINVAL;
	u16 mode;
	int i;

	old_queue_pairs = vsi->num_queue_pairs;
	num_tc = mqprio_qopt->qopt.num_tc;
	hw = mqprio_qopt->qopt.hw;
	mode = mqprio_qopt->mode;
	if (!hw) {
		pf->flags &= ~I40E_FLAG_TC_MQPRIO;
		memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt));
		goto config_tc;
	}

	/* Check if MFP enabled */
	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
		netdev_info(netdev,
			    "Configuring TC not supported in MFP mode\n");
		return ret;
	}
	switch (mode) {
	case TC_MQPRIO_MODE_DCB:
		pf->flags &= ~I40E_FLAG_TC_MQPRIO;

		/* Check if DCB enabled to continue */
		if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) {
			netdev_info(netdev,
				    "DCB is not enabled for adapter\n");
			return ret;
		}

		/* Check whether tc count is within enabled limit */
		if (num_tc > i40e_pf_get_num_tc(pf)) {
			netdev_info(netdev,
				    "TC count greater than enabled on link for adapter\n");
			return ret;
		}
		break;
	case TC_MQPRIO_MODE_CHANNEL:
		if (pf->flags & I40E_FLAG_DCB_ENABLED) {
			netdev_info(netdev,
				    "Full offload of TC Mqprio options is not supported when DCB is enabled\n");
			return ret;
		}
		if (!(pf->flags & I40E_FLAG_MSIX_ENABLED))
			return ret;
		ret = i40e_validate_mqprio_qopt(vsi, mqprio_qopt);
		if (ret)
			return ret;
		memcpy(&vsi->mqprio_qopt, mqprio_qopt,
		       sizeof(*mqprio_qopt));
		pf->flags |= I40E_FLAG_TC_MQPRIO;
		pf->flags &= ~I40E_FLAG_DCB_ENABLED;
		break;
	default:
		return -EINVAL;
	}

config_tc:
	/* Generate TC map for number of tc requested */
	for (i = 0; i < num_tc; i++)
		enabled_tc |= BIT(i);

	/* Requesting same TC configuration as already enabled */
	if (enabled_tc == vsi->tc_config.enabled_tc &&
	    mode != TC_MQPRIO_MODE_CHANNEL)
		return 0;

	/* Quiesce VSI queues */
	i40e_quiesce_vsi(vsi);

	if (!hw && !(pf->flags & I40E_FLAG_TC_MQPRIO))
		i40e_remove_queue_channels(vsi);

	/* Configure VSI for enabled TCs */
	ret = i40e_vsi_config_tc(vsi, enabled_tc);
	if (ret) {
		netdev_info(netdev, "Failed configuring TC for VSI seid=%d\n",
			    vsi->seid);
		need_reset = true;
		goto exit;
	} else {
		dev_info(&vsi->back->pdev->dev,
			 "Setup channel (id:%u) utilizing num_queues %d\n",
			 vsi->seid, vsi->tc_config.tc_info[0].qcount);
	}

	if (pf->flags & I40E_FLAG_TC_MQPRIO) {
		if (vsi->mqprio_qopt.max_rate[0]) {
			u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0];

			do_div(max_tx_rate, I40E_BW_MBPS_DIVISOR);
			ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
			if (!ret) {
				u64 credits = max_tx_rate;

				do_div(credits, I40E_BW_CREDIT_DIVISOR);
				dev_dbg(&vsi->back->pdev->dev,
					"Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
					max_tx_rate,
					credits,
					vsi->seid);
			} else {
				need_reset = true;
				goto exit;
			}
		}
		ret = i40e_configure_queue_channels(vsi);
		if (ret) {
			vsi->num_queue_pairs = old_queue_pairs;
			netdev_info(netdev,
				    "Failed configuring queue channels\n");
			need_reset = true;
			goto exit;
		}
	}

exit:
	/* Reset the configuration data to defaults, only TC0 is enabled */
	if (need_reset) {
		i40e_vsi_set_default_tc_config(vsi);
		need_reset = false;
	}

	/* Unquiesce VSI */
	i40e_unquiesce_vsi(vsi);
	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_get_oem_version(struct i40e_hw *hw)
{
	u16 block_offset = 0xffff;
	u16 block_length = 0;
	u16 capabilities = 0;
	u16 gen_snap = 0;
	u16 release = 0;

#define I40E_SR_NVM_OEM_VERSION_PTR		0x1B
#define I40E_NVM_OEM_LENGTH_OFFSET		0x00
#define I40E_NVM_OEM_CAPABILITIES_OFFSET	0x01
#define I40E_NVM_OEM_GEN_OFFSET			0x02
#define I40E_NVM_OEM_RELEASE_OFFSET		0x03
#define I40E_NVM_OEM_CAPABILITIES_MASK		0x000F
#define I40E_NVM_OEM_LENGTH			3

	/* Check if pointer to OEM version block is valid. */
	i40e_read_nvm_word(hw, I40E_SR_NVM_OEM_VERSION_PTR, &block_offset);
	if (block_offset == 0xffff)
		return;

	/* Check if OEM version block has correct length. */
	i40e_read_nvm_word(hw, block_offset + I40E_NVM_OEM_LENGTH_OFFSET,
			   &block_length);
	if (block_length < I40E_NVM_OEM_LENGTH)
		return;

	/* Check if OEM version format is as expected. */
	i40e_read_nvm_word(hw, block_offset + I40E_NVM_OEM_CAPABILITIES_OFFSET,
			   &capabilities);
	if ((capabilities & I40E_NVM_OEM_CAPABILITIES_MASK) != 0)
		return;

	i40e_read_nvm_word(hw, block_offset + I40E_NVM_OEM_GEN_OFFSET,
			   &gen_snap);
	i40e_read_nvm_word(hw, block_offset + I40E_NVM_OEM_RELEASE_OFFSET,
			   &release);
	hw->nvm.oem_ver = (gen_snap << I40E_OEM_SNAP_SHIFT) | release;
	hw->nvm.eetrack = I40E_OEM_EETRACK_ID;
}

Project: linux
File: i40e_main.c

static void i40e_irq_affinity_notify(struct irq_affinity_notify *notify,
				     const cpumask_t *mask)
{
	struct i40e_q_vector *q_vector =
		container_of(notify, struct i40e_q_vector, affinity_notify);

	cpumask_copy(&q_vector->affinity_mask, mask);
}

Project: linux
File: i40e_main.c

void i40e_update_stats(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;

	if (vsi == pf->vsi[pf->lan_vsi])
		i40e_update_pf_stats(pf);

	i40e_update_vsi_stats(vsi);
}

Project: linux
File: i40e_main.c

static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
{
	int i;

	i40e_free_misc_vector(pf);

	i40e_put_lump(pf->irq_pile, pf->iwarp_base_vector,
		      I40E_IWARP_IRQ_PILE_ID);

	i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
	for (i = 0; i < pf->num_alloc_vsi; i++)
		if (pf->vsi[i])
			i40e_vsi_free_q_vectors(pf->vsi[i]);
	i40e_reset_interrupt_capability(pf);
}

Project: linux
File: i40e_main.c

static int i40e_setup_macvlans(struct i40e_vsi *vsi, u16 macvlan_cnt, u16 qcnt,
			       struct net_device *vdev)
{
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vsi_context ctxt;
	u16 sections, qmap, num_qps;
	struct i40e_channel *ch;
	int i, pow, ret = 0;
	u8 offset = 0;

	if (vsi->type != I40E_VSI_MAIN || !macvlan_cnt)
		return -EINVAL;

	num_qps = vsi->num_queue_pairs - (macvlan_cnt * qcnt);

	/* find the next higher power-of-2 of num queue pairs */
	pow = fls(roundup_pow_of_two(num_qps) - 1);

	qmap = (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) |
		(pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT);

	/* Setup context bits for the main VSI */
	sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
	sections |= I40E_AQ_VSI_PROP_SCHED_VALID;
	memset(&ctxt, 0, sizeof(ctxt));
	ctxt.seid = vsi->seid;
	ctxt.pf_num = vsi->back->hw.pf_id;
	ctxt.vf_num = 0;
	ctxt.uplink_seid = vsi->uplink_seid;
	ctxt.info = vsi->info;
	ctxt.info.tc_mapping[0] = cpu_to_le16(qmap);
	ctxt.info.mapping_flags |= cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG);
	ctxt.info.queue_mapping[0] = cpu_to_le16(vsi->base_queue);
	ctxt.info.valid_sections |= cpu_to_le16(sections);

	/* Reconfigure RSS for main VSI with new max queue count */
	vsi->rss_size = max_t(u16, num_qps, qcnt);
	ret = i40e_vsi_config_rss(vsi);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "Failed to reconfig RSS for num_queues (%u)\n",
			 vsi->rss_size);
		return ret;
	}
	vsi->reconfig_rss = true;
	dev_dbg(&vsi->back->pdev->dev,
		"Reconfigured RSS with num_queues (%u)\n", vsi->rss_size);
	vsi->next_base_queue = num_qps;
	vsi->cnt_q_avail = vsi->num_queue_pairs - num_qps;

	/* Update the VSI after updating the VSI queue-mapping
	 * information
	 */
	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "Update vsi tc config failed, err %s aq_err %s\n",
			 i40e_stat_str(hw, ret),
			 i40e_aq_str(hw, hw->aq.asq_last_status));
		return ret;
	}
	/* update the local VSI info with updated queue map */
	i40e_vsi_update_queue_map(vsi, &ctxt);
	vsi->info.valid_sections = 0;

	/* Create channels for macvlans */
	INIT_LIST_HEAD(&vsi->macvlan_list);
	for (i = 0; i < macvlan_cnt; i++) {
		ch = kzalloc(sizeof(*ch), GFP_KERNEL);
		if (!ch) {
			ret = -ENOMEM;
			goto err_free;
		}
		INIT_LIST_HEAD(&ch->list);
		ch->num_queue_pairs = qcnt;
		if (!i40e_setup_channel(pf, vsi, ch)) {
			ret = -EINVAL;
			kfree(ch);
			goto err_free;
		}
		ch->parent_vsi = vsi;
		vsi->cnt_q_avail -= ch->num_queue_pairs;
		vsi->macvlan_cnt++;
		list_add_tail(&ch->list, &vsi->macvlan_list);
	}

	return ret;

err_free:
	dev_info(&pf->pdev->dev, "Failed to setup macvlans\n");
	i40e_free_macvlan_channels(vsi);

	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_addr_unsync(struct net_device *netdev, const u8 *addr)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;

	/* Under some circumstances, we might receive a request to delete
	 * our own device address from our uc list. Because we store the
	 * device address in the VSI's MAC/VLAN filter list, we need to ignore
	 * such requests and not delete our device address from this list.
	 */
	if (ether_addr_equal(addr, netdev->dev_addr))
		return 0;

	i40e_del_mac_filter(vsi, addr);

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_alloc_rings(struct i40e_vsi *vsi)
{
	int i, qpv = i40e_enabled_xdp_vsi(vsi) ? 3 : 2;
	struct i40e_pf *pf = vsi->back;
	struct i40e_ring *ring;

	/* Set basic values in the rings to be used later during open() */
	for (i = 0; i < vsi->alloc_queue_pairs; i++) {
		/* allocate space for both Tx and Rx in one shot */
		ring = kcalloc(qpv, sizeof(struct i40e_ring), GFP_KERNEL);
		if (!ring)
			goto err_out;

		ring->queue_index = i;
		ring->reg_idx = vsi->base_queue + i;
		ring->ring_active = false;
		ring->vsi = vsi;
		ring->netdev = vsi->netdev;
		ring->dev = &pf->pdev->dev;
		ring->count = vsi->num_tx_desc;
		ring->size = 0;
		ring->dcb_tc = 0;
		if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
			ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
		ring->itr_setting = pf->tx_itr_default;
		vsi->tx_rings[i] = ring++;

		if (!i40e_enabled_xdp_vsi(vsi))
			goto setup_rx;

		ring->queue_index = vsi->alloc_queue_pairs + i;
		ring->reg_idx = vsi->base_queue + ring->queue_index;
		ring->ring_active = false;
		ring->vsi = vsi;
		ring->netdev = NULL;
		ring->dev = &pf->pdev->dev;
		ring->count = vsi->num_tx_desc;
		ring->size = 0;
		ring->dcb_tc = 0;
		if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
			ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
		set_ring_xdp(ring);
		ring->itr_setting = pf->tx_itr_default;
		vsi->xdp_rings[i] = ring++;

setup_rx:
		ring->queue_index = i;
		ring->reg_idx = vsi->base_queue + i;
		ring->ring_active = false;
		ring->vsi = vsi;
		ring->netdev = vsi->netdev;
		ring->dev = &pf->pdev->dev;
		ring->count = vsi->num_rx_desc;
		ring->size = 0;
		ring->dcb_tc = 0;
		ring->itr_setting = pf->rx_itr_default;
		vsi->rx_rings[i] = ring;
	}

	return 0;

err_out:
	i40e_vsi_clear_rings(vsi);
	return -ENOMEM;
}

Project: linux
File: i40e_main.c

static void i40e_setup_pf_switch_element(struct i40e_pf *pf,
				struct i40e_aqc_switch_config_element_resp *ele,
				u16 num_reported, bool printconfig)
{
	u16 downlink_seid = le16_to_cpu(ele->downlink_seid);
	u16 uplink_seid = le16_to_cpu(ele->uplink_seid);
	u8 element_type = ele->element_type;
	u16 seid = le16_to_cpu(ele->seid);

	if (printconfig)
		dev_info(&pf->pdev->dev,
			 "type=%d seid=%d uplink=%d downlink=%d\n",
			 element_type, seid, uplink_seid, downlink_seid);

	switch (element_type) {
	case I40E_SWITCH_ELEMENT_TYPE_MAC:
		pf->mac_seid = seid;
		break;
	case I40E_SWITCH_ELEMENT_TYPE_VEB:
		/* Main VEB? */
		if (uplink_seid != pf->mac_seid)
			break;
		if (pf->lan_veb >= I40E_MAX_VEB) {
			int v;

			/* find existing or else empty VEB */
			for (v = 0; v < I40E_MAX_VEB; v++) {
				if (pf->veb[v] && (pf->veb[v]->seid == seid)) {
					pf->lan_veb = v;
					break;
				}
			}
			if (pf->lan_veb >= I40E_MAX_VEB) {
				v = i40e_veb_mem_alloc(pf);
				if (v < 0)
					break;
				pf->lan_veb = v;
			}
		}
		if (pf->lan_veb >= I40E_MAX_VEB)
			break;

		pf->veb[pf->lan_veb]->seid = seid;
		pf->veb[pf->lan_veb]->uplink_seid = pf->mac_seid;
		pf->veb[pf->lan_veb]->pf = pf;
		pf->veb[pf->lan_veb]->veb_idx = I40E_NO_VEB;
		break;
	case I40E_SWITCH_ELEMENT_TYPE_VSI:
		if (num_reported != 1)
			break;
		/* This is immediately after a reset so we can assume this is
		 * the PF's VSI
		 */
		pf->mac_seid = uplink_seid;
		pf->pf_seid = downlink_seid;
		pf->main_vsi_seid = seid;
		if (printconfig)
			dev_info(&pf->pdev->dev,
				 "pf_seid=%d main_vsi_seid=%d\n",
				 pf->pf_seid, pf->main_vsi_seid);
		break;
	case I40E_SWITCH_ELEMENT_TYPE_PF:
	case I40E_SWITCH_ELEMENT_TYPE_VF:
	case I40E_SWITCH_ELEMENT_TYPE_EMP:
	case I40E_SWITCH_ELEMENT_TYPE_BMC:
	case I40E_SWITCH_ELEMENT_TYPE_PE:
	case I40E_SWITCH_ELEMENT_TYPE_PA:
		/* ignore these for now */
		break;
	default:
		dev_info(&pf->pdev->dev, "unknown element type=%d seid=%d\n",
			 element_type, seid);
		break;
	}
}

Project: linux
File: i40e_main.c

static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename)
{
	int q_vectors = vsi->num_q_vectors;
	struct i40e_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;
	int cpu;

	for (vector = 0; vector < q_vectors; vector++) {
		struct i40e_q_vector *q_vector = vsi->q_vectors[vector];

		irq_num = pf->msix_entries[base + vector].vector;

		if (q_vector->tx.ring && q_vector->rx.ring) {
			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
				 "%s-%s-%d", basename, "TxRx", rx_int_idx++);
			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 = request_irq(irq_num,
				  vsi->irq_handler,
				  0,
				  q_vector->name,
				  q_vector);
		if (err) {
			dev_info(&pf->pdev->dev,
				 "MSIX request_irq failed, error: %d\n", err);
			goto free_queue_irqs;
		}

		/* register for affinity change notifications */
		q_vector->affinity_notify.notify = i40e_irq_affinity_notify;
		q_vector->affinity_notify.release = i40e_irq_affinity_release;
		irq_set_affinity_notifier(irq_num, &q_vector->affinity_notify);
		/* Spread affinity hints out across online CPUs.
		 *
		 * get_cpu_mask returns a static constant mask with
		 * a permanent lifetime so it's ok to pass to
		 * irq_set_affinity_hint without making a copy.
		 */
		cpu = cpumask_local_spread(q_vector->v_idx, -1);
		irq_set_affinity_hint(irq_num, get_cpu_mask(cpu));
	}

	vsi->irqs_ready = true;
	return 0;

free_queue_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);
		free_irq(irq_num, &vsi->q_vectors[vector]);
	}
	return err;
}

Project: linux
File: i40e_main.c

static void i40e_fdir_teardown(struct i40e_pf *pf)
{
	struct i40e_vsi *vsi;

	i40e_fdir_filter_exit(pf);
	vsi = i40e_find_vsi_by_type(pf, I40E_VSI_FDIR);
	if (vsi)
		i40e_vsi_release(vsi);
}

Project: linux
File: i40e_main.c

static int i40e_reconstitute_veb(struct i40e_veb *veb)
{
	struct i40e_vsi *ctl_vsi = NULL;
	struct i40e_pf *pf = veb->pf;
	int v, veb_idx;
	int ret;

	/* build VSI that owns this VEB, temporarily attached to base VEB */
	for (v = 0; v < pf->num_alloc_vsi && !ctl_vsi; v++) {
		if (pf->vsi[v] &&
		    pf->vsi[v]->veb_idx == veb->idx &&
		    pf->vsi[v]->flags & I40E_VSI_FLAG_VEB_OWNER) {
			ctl_vsi = pf->vsi[v];
			break;
		}
	}
	if (!ctl_vsi) {
		dev_info(&pf->pdev->dev,
			 "missing owner VSI for veb_idx %d\n", veb->idx);
		ret = -ENOENT;
		goto end_reconstitute;
	}
	if (ctl_vsi != pf->vsi[pf->lan_vsi])
		ctl_vsi->uplink_seid = pf->vsi[pf->lan_vsi]->uplink_seid;
	ret = i40e_add_vsi(ctl_vsi);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "rebuild of veb_idx %d owner VSI failed: %d\n",
			 veb->idx, ret);
		goto end_reconstitute;
	}
	i40e_vsi_reset_stats(ctl_vsi);

	/* create the VEB in the switch and move the VSI onto the VEB */
	ret = i40e_add_veb(veb, ctl_vsi);
	if (ret)
		goto end_reconstitute;

	if (pf->flags & I40E_FLAG_VEB_MODE_ENABLED)
		veb->bridge_mode = BRIDGE_MODE_VEB;
	else
		veb->bridge_mode = BRIDGE_MODE_VEPA;
	i40e_config_bridge_mode(veb);

	/* create the remaining VSIs attached to this VEB */
	for (v = 0; v < pf->num_alloc_vsi; v++) {
		if (!pf->vsi[v] || pf->vsi[v] == ctl_vsi)
			continue;

		if (pf->vsi[v]->veb_idx == veb->idx) {
			struct i40e_vsi *vsi = pf->vsi[v];

			vsi->uplink_seid = veb->seid;
			ret = i40e_add_vsi(vsi);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "rebuild of vsi_idx %d failed: %d\n",
					 v, ret);
				goto end_reconstitute;
			}
			i40e_vsi_reset_stats(vsi);
		}
	}

	/* create any VEBs attached to this VEB - RECURSION */
	for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
		if (pf->veb[veb_idx] && pf->veb[veb_idx]->veb_idx == veb->idx) {
			pf->veb[veb_idx]->uplink_seid = veb->seid;
			ret = i40e_reconstitute_veb(pf->veb[veb_idx]);
			if (ret)
				break;
		}
	}

end_reconstitute:
	return ret;
}

Project: linux
File: i40e_main.c

static netdev_features_t i40e_features_check(struct sk_buff *skb,
					     struct net_device *dev,
					     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;

	/* MACLEN can support at most 63 words */
	len = skb_network_header(skb) - skb->data;
	if (len & ~(63 * 2))
		goto out_err;

	/* IPLEN and EIPLEN can support at most 127 dwords */
	len = skb_transport_header(skb) - skb_network_header(skb);
	if (len & ~(127 * 4))
		goto out_err;

	if (skb->encapsulation) {
		/* L4TUNLEN can support 127 words */
		len = skb_inner_network_header(skb) - skb_transport_header(skb);
		if (len & ~(127 * 2))
			goto out_err;

		/* IPLEN can support at most 127 dwords */
		len = skb_inner_transport_header(skb) -
		      skb_inner_network_header(skb);
		if (len & ~(127 * 4))
			goto out_err;
	}

	/* No need to validate L4LEN as TCP is the only protocol with a
	 * a flexible value and we support all possible values supported
	 * by TCP, which is at most 15 dwords
	 */

	return features;
out_err:
	return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
}

Project: linux
File: i40e_main.c

static void i40e_verify_eeprom(struct i40e_pf *pf)
{
	int err;

	err = i40e_diag_eeprom_test(&pf->hw);
	if (err) {
		/* retry in case of garbage read */
		err = i40e_diag_eeprom_test(&pf->hw);
		if (err) {
			dev_info(&pf->pdev->dev, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
				 err);
			set_bit(__I40E_BAD_EEPROM, pf->state);
		}
	}

	if (!err && test_bit(__I40E_BAD_EEPROM, pf->state)) {
		dev_info(&pf->pdev->dev, "eeprom check passed, Tx/Rx traffic enabled\n");
		clear_bit(__I40E_BAD_EEPROM, pf->state);
	}
}

Project: linux
File: i40e_main.c

static int i40e_setup_pf_filter_control(struct i40e_pf *pf)
{
	struct i40e_filter_control_settings *settings = &pf->filter_settings;

	settings->hash_lut_size = I40E_HASH_LUT_SIZE_128;

	/* Flow Director is enabled */
	if (pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED))
		settings->enable_fdir = true;

	/* Ethtype and MACVLAN filters enabled for PF */
	settings->enable_ethtype = true;
	settings->enable_macvlan = true;

	if (i40e_set_filter_control(&pf->hw, settings))
		return -ENOENT;

	return 0;
}

Project: linux
File: i40e_main.c

int i40e_free_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem)
{
	/* it's ok to kfree a NULL pointer */
	kfree(mem->va);
	mem->va = NULL;
	mem->size = 0;

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_send_version(struct i40e_pf *pf)
{
	struct i40e_driver_version dv;

	dv.major_version = DRV_VERSION_MAJOR;
	dv.minor_version = DRV_VERSION_MINOR;
	dv.build_version = DRV_VERSION_BUILD;
	dv.subbuild_version = 0;
	strlcpy(dv.driver_string, DRV_VERSION, sizeof(dv.driver_string));
	i40e_aq_send_driver_version(&pf->hw, &dv, NULL);
}

Project: linux
File: i40e_main.c

static void i40e_handle_lan_overflow_event(struct i40e_pf *pf,
					   struct i40e_arq_event_info *e)
{
	struct i40e_aqc_lan_overflow *data =
		(struct i40e_aqc_lan_overflow *)&e->desc.params.raw;
	u32 queue = le32_to_cpu(data->prtdcb_rupto);
	u32 qtx_ctl = le32_to_cpu(data->otx_ctl);
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;
	u16 vf_id;

	dev_dbg(&pf->pdev->dev, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
		queue, qtx_ctl);

	/* Queue belongs to VF, find the VF and issue VF reset */
	if (((qtx_ctl & I40E_QTX_CTL_PFVF_Q_MASK)
	    >> I40E_QTX_CTL_PFVF_Q_SHIFT) == I40E_QTX_CTL_VF_QUEUE) {
		vf_id = (u16)((qtx_ctl & I40E_QTX_CTL_VFVM_INDX_MASK)
			 >> I40E_QTX_CTL_VFVM_INDX_SHIFT);
		vf_id -= hw->func_caps.vf_base_id;
		vf = &pf->vf[vf_id];
		i40e_vc_notify_vf_reset(vf);
		/* Allow VF to process pending reset notification */
		msleep(20);
		i40e_reset_vf(vf, false);
	}
}

Project: linux
File: i40e_main.c

static int i40e_vsi_alloc_q_vectors(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	int err, v_idx, num_q_vectors, current_cpu;

	/* if not MSIX, give the one vector only to the LAN VSI */
	if (pf->flags & I40E_FLAG_MSIX_ENABLED)
		num_q_vectors = vsi->num_q_vectors;
	else if (vsi == pf->vsi[pf->lan_vsi])
		num_q_vectors = 1;
	else
		return -EINVAL;

	current_cpu = cpumask_first(cpu_online_mask);

	for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
		err = i40e_vsi_alloc_q_vector(vsi, v_idx, current_cpu);
		if (err)
			goto err_out;
		current_cpu = cpumask_next(current_cpu, cpu_online_mask);
		if (unlikely(current_cpu >= nr_cpu_ids))
			current_cpu = cpumask_first(cpu_online_mask);
	}

	return 0;

err_out:
	while (v_idx--)
		i40e_free_q_vector(vsi, v_idx);

	return err;
}

Project: linux
File: i40e_main.c

static int i40e_max_xdp_frame_size(struct i40e_vsi *vsi)
{
	if (PAGE_SIZE >= 8192 || (vsi->back->flags & I40E_FLAG_LEGACY_RX))
		return I40E_RXBUFFER_2048;
	else
		return I40E_RXBUFFER_3072;
}

Project: linux
File: i40e_main.c

static int i40e_vsi_request_irq(struct i40e_vsi *vsi, char *basename)
{
	struct i40e_pf *pf = vsi->back;
	int err;

	if (pf->flags & I40E_FLAG_MSIX_ENABLED)
		err = i40e_vsi_request_irq_msix(vsi, basename);
	else if (pf->flags & I40E_FLAG_MSI_ENABLED)
		err = request_irq(pf->pdev->irq, i40e_intr, 0,
				  pf->int_name, pf);
	else
		err = request_irq(pf->pdev->irq, i40e_intr, IRQF_SHARED,
				  pf->int_name, pf);

	if (err)
		dev_info(&pf->pdev->dev, "request_irq failed, Error %d\n", err);

	return err;
}

Project: linux
File: i40e_main.c

static void i40e_stat_update32(struct i40e_hw *hw, u32 reg,
			       bool offset_loaded, u64 *offset, u64 *stat)
{
	u32 new_data;

	new_data = rd32(hw, reg);
	if (!offset_loaded)
		*offset = new_data;
	if (likely(new_data >= *offset))
		*stat = (u32)(new_data - *offset);
	else
		*stat = (u32)((new_data + BIT_ULL(32)) - *offset);
}

Project: linux
File: i40e_main.c

static int i40e_set_promiscuous(struct i40e_pf *pf, bool promisc)
{
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
	struct i40e_hw *hw = &pf->hw;
	i40e_status aq_ret;

	if (vsi->type == I40E_VSI_MAIN &&
	    pf->lan_veb != I40E_NO_VEB &&
	    !(pf->flags & I40E_FLAG_MFP_ENABLED)) {
		/* set defport ON for Main VSI instead of true promisc
		 * this way we will get all unicast/multicast and VLAN
		 * promisc behavior but will not get VF or VMDq traffic
		 * replicated on the Main VSI.
		 */
		if (promisc)
			aq_ret = i40e_aq_set_default_vsi(hw,
							 vsi->seid,
							 NULL);
		else
			aq_ret = i40e_aq_clear_default_vsi(hw,
							   vsi->seid,
							   NULL);
		if (aq_ret) {
			dev_info(&pf->pdev->dev,
				 "Set default VSI failed, err %s, aq_err %s\n",
				 i40e_stat_str(hw, aq_ret),
				 i40e_aq_str(hw, hw->aq.asq_last_status));
		}
	} else {
		aq_ret = i40e_aq_set_vsi_unicast_promiscuous(
						  hw,
						  vsi->seid,
						  promisc, NULL,
						  true);
		if (aq_ret) {
			dev_info(&pf->pdev->dev,
				 "set unicast promisc failed, err %s, aq_err %s\n",
				 i40e_stat_str(hw, aq_ret),
				 i40e_aq_str(hw, hw->aq.asq_last_status));
		}
		aq_ret = i40e_aq_set_vsi_multicast_promiscuous(
						  hw,
						  vsi->seid,
						  promisc, NULL);
		if (aq_ret) {
			dev_info(&pf->pdev->dev,
				 "set multicast promisc failed, err %s, aq_err %s\n",
				 i40e_stat_str(hw, aq_ret),
				 i40e_aq_str(hw, hw->aq.asq_last_status));
		}
	}

	if (!aq_ret)
		pf->cur_promisc = promisc;

	return aq_ret;
}

Project: linux
File: i40e_main.c

static int i40e_validate_num_queues(struct i40e_pf *pf, int num_queues,
				    struct i40e_vsi *vsi, bool *reconfig_rss)
{
	int max_ch_queues;

	if (!reconfig_rss)
		return -EINVAL;

	*reconfig_rss = false;
	if (vsi->current_rss_size) {
		if (num_queues > vsi->current_rss_size) {
			dev_dbg(&pf->pdev->dev,
				"Error: num_queues (%d) > vsi's current_size(%d)\n",
				num_queues, vsi->current_rss_size);
			return -EINVAL;
		} else if ((num_queues < vsi->current_rss_size) &&
			   (!is_power_of_2(num_queues))) {
			dev_dbg(&pf->pdev->dev,
				"Error: num_queues (%d) < vsi's current_size(%d), but not power of 2\n",
				num_queues, vsi->current_rss_size);
			return -EINVAL;
		}
	}

	if (!is_power_of_2(num_queues)) {
		/* Find the max num_queues configured for channel if channel
		 * exist.
		 * if channel exist, then enforce 'num_queues' to be more than
		 * max ever queues configured for channel.
		 */
		max_ch_queues = i40e_get_max_queues_for_channel(vsi);
		if (num_queues < max_ch_queues) {
			dev_dbg(&pf->pdev->dev,
				"Error: num_queues (%d) < max queues configured for channel(%d)\n",
				num_queues, max_ch_queues);
			return -EINVAL;
		}
		*reconfig_rss = true;
	}

	return 0;
}

Project: linux
File: i40e_main.c

struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi)
{
	return &vsi->net_stats;
}

Project: linux
File: i40e_main.c

void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
{
	enum i40e_aq_link_speed new_speed;
	struct i40e_pf *pf = vsi->back;
	char *speed = "Unknown";
	char *fc = "Unknown";
	char *fec = "";
	char *req_fec = "";
	char *an = "";

	if (isup)
		new_speed = pf->hw.phy.link_info.link_speed;
	else
		new_speed = I40E_LINK_SPEED_UNKNOWN;

	if ((vsi->current_isup == isup) && (vsi->current_speed == new_speed))
		return;
	vsi->current_isup = isup;
	vsi->current_speed = new_speed;
	if (!isup) {
		netdev_info(vsi->netdev, "NIC Link is Down\n");
		return;
	}

	/* Warn user if link speed on NPAR enabled partition is not at
	 * least 10GB
	 */
	if (pf->hw.func_caps.npar_enable &&
	    (pf->hw.phy.link_info.link_speed == I40E_LINK_SPEED_1GB ||
	     pf->hw.phy.link_info.link_speed == I40E_LINK_SPEED_100MB))
		netdev_warn(vsi->netdev,
			    "The partition detected link speed that is less than 10Gbps\n");

	switch (pf->hw.phy.link_info.link_speed) {
	case I40E_LINK_SPEED_40GB:
		speed = "40 G";
		break;
	case I40E_LINK_SPEED_20GB:
		speed = "20 G";
		break;
	case I40E_LINK_SPEED_25GB:
		speed = "25 G";
		break;
	case I40E_LINK_SPEED_10GB:
		speed = "10 G";
		break;
	case I40E_LINK_SPEED_5GB:
		speed = "5 G";
		break;
	case I40E_LINK_SPEED_2_5GB:
		speed = "2.5 G";
		break;
	case I40E_LINK_SPEED_1GB:
		speed = "1000 M";
		break;
	case I40E_LINK_SPEED_100MB:
		speed = "100 M";
		break;
	default:
		break;
	}

	switch (pf->hw.fc.current_mode) {
	case I40E_FC_FULL:
		fc = "RX/TX";
		break;
	case I40E_FC_TX_PAUSE:
		fc = "TX";
		break;
	case I40E_FC_RX_PAUSE:
		fc = "RX";
		break;
	default:
		fc = "None";
		break;
	}

	if (pf->hw.phy.link_info.link_speed == I40E_LINK_SPEED_25GB) {
		req_fec = "None";
		fec = "None";
		an = "False";

		if (pf->hw.phy.link_info.an_info & I40E_AQ_AN_COMPLETED)
			an = "True";

		if (pf->hw.phy.link_info.fec_info &
		    I40E_AQ_CONFIG_FEC_KR_ENA)
			fec = "CL74 FC-FEC/BASE-R";
		else if (pf->hw.phy.link_info.fec_info &
			 I40E_AQ_CONFIG_FEC_RS_ENA)
			fec = "CL108 RS-FEC";

		/* 'CL108 RS-FEC' should be displayed when RS is requested, or
		 * both RS and FC are requested
		 */
		if (vsi->back->hw.phy.link_info.req_fec_info &
		    (I40E_AQ_REQUEST_FEC_KR | I40E_AQ_REQUEST_FEC_RS)) {
			if (vsi->back->hw.phy.link_info.req_fec_info &
			    I40E_AQ_REQUEST_FEC_RS)
				req_fec = "CL108 RS-FEC";
			else
				req_fec = "CL74 FC-FEC/BASE-R";
		}
		netdev_info(vsi->netdev,
			    "NIC Link is Up, %sbps Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg: %s, Flow Control: %s\n",
			    speed, req_fec, fec, an, fc);
	} else {
		netdev_info(vsi->netdev,
			    "NIC Link is Up, %sbps Full Duplex, Flow Control: %s\n",
			    speed, fc);
	}

}

Project: linux
File: i40e_main.c

static int i40e_xdp(struct net_device *dev,
		    struct netdev_bpf *xdp)
{
	struct i40e_netdev_priv *np = netdev_priv(dev);
	struct i40e_vsi *vsi = np->vsi;

	if (vsi->type != I40E_VSI_MAIN)
		return -EINVAL;

	switch (xdp->command) {
	case XDP_SETUP_PROG:
		return i40e_xdp_setup(vsi, xdp->prog);
	case XDP_QUERY_PROG:
		xdp->prog_id = vsi->xdp_prog ? vsi->xdp_prog->aux->id : 0;
		return 0;
	case XDP_SETUP_XSK_UMEM:
		return i40e_xsk_umem_setup(vsi, xdp->xsk.umem,
					   xdp->xsk.queue_id);
	default:
		return -EINVAL;
	}
}

Project: linux
File: i40e_main.c

static int i40e_get_link_speed(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;

	switch (pf->hw.phy.link_info.link_speed) {
	case I40E_LINK_SPEED_40GB:
		return 40000;
	case I40E_LINK_SPEED_25GB:
		return 25000;
	case I40E_LINK_SPEED_20GB:
		return 20000;
	case I40E_LINK_SPEED_10GB:
		return 10000;
	case I40E_LINK_SPEED_1GB:
		return 1000;
	default:
		return -EINVAL;
	}
}

Project: linux
File: i40e_main.c

static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi)
{
	u16 alloc_queue_pairs;
	struct i40e_pf *pf;
	u8 enabled_tc;
	int ret;

	if (!vsi)
		return NULL;

	pf = vsi->back;

	i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx);
	i40e_vsi_clear_rings(vsi);

	i40e_vsi_free_arrays(vsi, false);
	i40e_set_num_rings_in_vsi(vsi);
	ret = i40e_vsi_alloc_arrays(vsi, false);
	if (ret)
		goto err_vsi;

	alloc_queue_pairs = vsi->alloc_queue_pairs *
			    (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);

	ret = i40e_get_lump(pf, pf->qp_pile, alloc_queue_pairs, vsi->idx);
	if (ret < 0) {
		dev_info(&pf->pdev->dev,
			 "failed to get tracking for %d queues for VSI %d err %d\n",
			 alloc_queue_pairs, vsi->seid, ret);
		goto err_vsi;
	}
	vsi->base_queue = ret;

	/* Update the FW view of the VSI. Force a reset of TC and queue
	 * layout configurations.
	 */
	enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc;
	pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0;
	pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid;
	i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc);
	if (vsi->type == I40E_VSI_MAIN)
		i40e_rm_default_mac_filter(vsi, pf->hw.mac.perm_addr);

	/* assign it some queues */
	ret = i40e_alloc_rings(vsi);
	if (ret)
		goto err_rings;

	/* map all of the rings to the q_vectors */
	i40e_vsi_map_rings_to_vectors(vsi);
	return vsi;

err_rings:
	i40e_vsi_free_q_vectors(vsi);
	if (vsi->netdev_registered) {
		vsi->netdev_registered = false;
		unregister_netdev(vsi->netdev);
		free_netdev(vsi->netdev);
		vsi->netdev = NULL;
	}
	i40e_aq_delete_element(&pf->hw, vsi->seid, NULL);
err_vsi:
	i40e_vsi_clear(vsi);
	return NULL;
}

Project: linux
File: i40e_main.c

static pci_ers_result_t i40e_pci_error_slot_reset(struct pci_dev *pdev)
{
	struct i40e_pf *pf = pci_get_drvdata(pdev);
	pci_ers_result_t result;
	u32 reg;

	dev_dbg(&pdev->dev, "%s\n", __func__);
	if (pci_enable_device_mem(pdev)) {
		dev_info(&pdev->dev,
			 "Cannot re-enable PCI device after reset.\n");
		result = PCI_ERS_RESULT_DISCONNECT;
	} else {
		pci_set_master(pdev);
		pci_restore_state(pdev);
		pci_save_state(pdev);
		pci_wake_from_d3(pdev, false);

		reg = rd32(&pf->hw, I40E_GLGEN_RTRIG);
		if (reg == 0)
			result = PCI_ERS_RESULT_RECOVERED;
		else
			result = PCI_ERS_RESULT_DISCONNECT;
	}

	return result;
}

Project: linux
File: i40e_main.c

static void i40e_vsi_free_q_vectors(struct i40e_vsi *vsi)
{
	int v_idx;

	for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++)
		i40e_free_q_vector(vsi, v_idx);
}

Project: linux
File: i40e_main.c

static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
{
	int old_recovery_mode_bit = test_bit(__I40E_RECOVERY_MODE, pf->state);
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
	struct i40e_hw *hw = &pf->hw;
	u8 set_fc_aq_fail = 0;
	i40e_status ret;
	u32 val;
	int v;

	if (test_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state) &&
	    i40e_check_recovery_mode(pf)) {
		i40e_set_ethtool_ops(pf->vsi[pf->lan_vsi]->netdev);
	}

	if (test_bit(__I40E_DOWN, pf->state) &&
	    !test_bit(__I40E_RECOVERY_MODE, pf->state) &&
	    !old_recovery_mode_bit)
		goto clear_recovery;
	dev_dbg(&pf->pdev->dev, "Rebuilding internal switch\n");

	/* rebuild the basics for the AdminQ, HMC, and initial HW switch */
	ret = i40e_init_adminq(&pf->hw);
	if (ret) {
		dev_info(&pf->pdev->dev, "Rebuild AdminQ failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
		goto clear_recovery;
	}
	i40e_get_oem_version(&pf->hw);

	if (test_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state) &&
	    ((hw->aq.fw_maj_ver == 4 && hw->aq.fw_min_ver <= 33) ||
	     hw->aq.fw_maj_ver < 4) && hw->mac.type == I40E_MAC_XL710) {
		/* The following delay is necessary for 4.33 firmware and older
		 * to recover after EMP reset. 200 ms should suffice but we
		 * put here 300 ms to be sure that FW is ready to operate
		 * after reset.
		 */
		mdelay(300);
	}

	/* re-verify the eeprom if we just had an EMP reset */
	if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state))
		i40e_verify_eeprom(pf);

	/* if we are going out of or into recovery mode we have to act
	 * accordingly with regard to resources initialization
	 * and deinitialization
	 */
	if (test_bit(__I40E_RECOVERY_MODE, pf->state) ||
	    old_recovery_mode_bit) {
		if (i40e_get_capabilities(pf,
					  i40e_aqc_opc_list_func_capabilities))
			goto end_unlock;

		if (test_bit(__I40E_RECOVERY_MODE, pf->state)) {
			/* we're staying in recovery mode so we'll reinitialize
			 * misc vector here
			 */
			if (i40e_setup_misc_vector_for_recovery_mode(pf))
				goto end_unlock;
		} else {
			if (!lock_acquired)
				rtnl_lock();
			/* we're going out of recovery mode so we'll free
			 * the IRQ allocated specifically for recovery mode
			 * and restore the interrupt scheme
			 */
			free_irq(pf->pdev->irq, pf);
			i40e_clear_interrupt_scheme(pf);
			if (i40e_restore_interrupt_scheme(pf))
				goto end_unlock;
		}

		/* tell the firmware that we're starting */
		i40e_send_version(pf);

		/* bail out in case recovery mode was detected, as there is
		 * no need for further configuration.
		 */
		goto end_unlock;
	}

	i40e_clear_pxe_mode(hw);
	ret = i40e_get_capabilities(pf, i40e_aqc_opc_list_func_capabilities);
	if (ret)
		goto end_core_reset;

	ret = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
				hw->func_caps.num_rx_qp, 0, 0);
	if (ret) {
		dev_info(&pf->pdev->dev, "init_lan_hmc failed: %d\n", ret);
		goto end_core_reset;
	}
	ret = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY);
	if (ret) {
		dev_info(&pf->pdev->dev, "configure_lan_hmc failed: %d\n", ret);
		goto end_core_reset;
	}

	/* Enable FW to write a default DCB config on link-up */
	i40e_aq_set_dcb_parameters(hw, true, NULL);

#ifdef CONFIG_I40E_DCB
	ret = i40e_init_pf_dcb(pf);
	if (ret) {
		dev_info(&pf->pdev->dev, "DCB init failed %d, disabled\n", ret);
		pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
		/* Continue without DCB enabled */
	}
#endif /* CONFIG_I40E_DCB */
	/* do basic switch setup */
	if (!lock_acquired)
		rtnl_lock();
	ret = i40e_setup_pf_switch(pf, reinit);
	if (ret)
		goto end_unlock;

	/* The driver only wants link up/down and module qualification
	 * reports from firmware.  Note the negative logic.
	 */
	ret = i40e_aq_set_phy_int_mask(&pf->hw,
				       ~(I40E_AQ_EVENT_LINK_UPDOWN |
					 I40E_AQ_EVENT_MEDIA_NA |
					 I40E_AQ_EVENT_MODULE_QUAL_FAIL), NULL);
	if (ret)
		dev_info(&pf->pdev->dev, "set phy mask fail, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));

	/* make sure our flow control settings are restored */
	ret = i40e_set_fc(&pf->hw, &set_fc_aq_fail, true);
	if (ret)
		dev_dbg(&pf->pdev->dev, "setting flow control: ret = %s last_status = %s\n",
			i40e_stat_str(&pf->hw, ret),
			i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));

	/* Rebuild the VSIs and VEBs that existed before reset.
	 * They are still in our local switch element arrays, so only
	 * need to rebuild the switch model in the HW.
	 *
	 * If there were VEBs but the reconstitution failed, we'll try
	 * try to recover minimal use by getting the basic PF VSI working.
	 */
	if (vsi->uplink_seid != pf->mac_seid) {
		dev_dbg(&pf->pdev->dev, "attempting to rebuild switch\n");
		/* find the one VEB connected to the MAC, and find orphans */
		for (v = 0; v < I40E_MAX_VEB; v++) {
			if (!pf->veb[v])
				continue;

			if (pf->veb[v]->uplink_seid == pf->mac_seid ||
			    pf->veb[v]->uplink_seid == 0) {
				ret = i40e_reconstitute_veb(pf->veb[v]);

				if (!ret)
					continue;

				/* If Main VEB failed, we're in deep doodoo,
				 * so give up rebuilding the switch and set up
				 * for minimal rebuild of PF VSI.
				 * If orphan failed, we'll report the error
				 * but try to keep going.
				 */
				if (pf->veb[v]->uplink_seid == pf->mac_seid) {
					dev_info(&pf->pdev->dev,
						 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
						 ret);
					vsi->uplink_seid = pf->mac_seid;
					break;
				} else if (pf->veb[v]->uplink_seid == 0) {
					dev_info(&pf->pdev->dev,
						 "rebuild of orphan VEB failed: %d\n",
						 ret);
				}
			}
		}
	}

	if (vsi->uplink_seid == pf->mac_seid) {
		dev_dbg(&pf->pdev->dev, "attempting to rebuild PF VSI\n");
		/* no VEB, so rebuild only the Main VSI */
		ret = i40e_add_vsi(vsi);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "rebuild of Main VSI failed: %d\n", ret);
			goto end_unlock;
		}
	}

	if (vsi->mqprio_qopt.max_rate[0]) {
		u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0];
		u64 credits = 0;

		do_div(max_tx_rate, I40E_BW_MBPS_DIVISOR);
		ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
		if (ret)
			goto end_unlock;

		credits = max_tx_rate;
		do_div(credits, I40E_BW_CREDIT_DIVISOR);
		dev_dbg(&vsi->back->pdev->dev,
			"Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
			max_tx_rate,
			credits,
			vsi->seid);
	}

	ret = i40e_rebuild_cloud_filters(vsi, vsi->seid);
	if (ret)
		goto end_unlock;

	/* PF Main VSI is rebuild by now, go ahead and rebuild channel VSIs
	 * for this main VSI if they exist
	 */
	ret = i40e_rebuild_channels(vsi);
	if (ret)
		goto end_unlock;

	/* Reconfigure hardware for allowing smaller MSS in the case
	 * of TSO, so that we avoid the MDD being fired and causing
	 * a reset in the case of small MSS+TSO.
	 */
#define I40E_REG_MSS          0x000E64DC
#define I40E_REG_MSS_MIN_MASK 0x3FF0000
#define I40E_64BYTE_MSS       0x400000
	val = rd32(hw, I40E_REG_MSS);
	if ((val & I40E_REG_MSS_MIN_MASK) > I40E_64BYTE_MSS) {
		val &= ~I40E_REG_MSS_MIN_MASK;
		val |= I40E_64BYTE_MSS;
		wr32(hw, I40E_REG_MSS, val);
	}

	if (pf->hw_features & I40E_HW_RESTART_AUTONEG) {
		msleep(75);
		ret = i40e_aq_set_link_restart_an(&pf->hw, true, NULL);
		if (ret)
			dev_info(&pf->pdev->dev, "link restart failed, err %s aq_err %s\n",
				 i40e_stat_str(&pf->hw, ret),
				 i40e_aq_str(&pf->hw,
					     pf->hw.aq.asq_last_status));
	}
	/* reinit the misc interrupt */
	if (pf->flags & I40E_FLAG_MSIX_ENABLED)
		ret = i40e_setup_misc_vector(pf);

	/* Add a filter to drop all Flow control frames from any VSI from being
	 * transmitted. By doing so we stop a malicious VF from sending out
	 * PAUSE or PFC frames and potentially controlling traffic for other
	 * PF/VF VSIs.
	 * The FW can still send Flow control frames if enabled.
	 */
	i40e_add_filter_to_drop_tx_flow_control_frames(&pf->hw,
						       pf->main_vsi_seid);

	/* restart the VSIs that were rebuilt and running before the reset */
	i40e_pf_unquiesce_all_vsi(pf);

	/* Release the RTNL lock before we start resetting VFs */
	if (!lock_acquired)
		rtnl_unlock();

	/* Restore promiscuous settings */
	ret = i40e_set_promiscuous(pf, pf->cur_promisc);
	if (ret)
		dev_warn(&pf->pdev->dev,
			 "Failed to restore promiscuous setting: %s, err %s aq_err %s\n",
			 pf->cur_promisc ? "on" : "off",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));

	i40e_reset_all_vfs(pf, true);

	/* tell the firmware that we're starting */
	i40e_send_version(pf);

	/* We've already released the lock, so don't do it again */
	goto end_core_reset;

end_unlock:
	if (!lock_acquired)
		rtnl_unlock();
end_core_reset:
	clear_bit(__I40E_RESET_FAILED, pf->state);
clear_recovery:
	clear_bit(__I40E_RESET_RECOVERY_PENDING, pf->state);
	clear_bit(__I40E_TIMEOUT_RECOVERY_PENDING, pf->state);
}

Project: linux
File: i40e_main.c

static int i40e_vsi_enable_irq(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	int i;

	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
		for (i = 0; i < vsi->num_q_vectors; i++)
			i40e_irq_dynamic_enable(vsi, i);
	} else {
		i40e_irq_dynamic_enable_icr0(pf);
	}

	i40e_flush(&pf->hw);
	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_channel_setup_queue_map(struct i40e_pf *pf,
					 struct i40e_vsi_context *ctxt,
					 struct i40e_channel *ch)
{
	u16 qcount, qmap, sections = 0;
	u8 offset = 0;
	int pow;

	sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
	sections |= I40E_AQ_VSI_PROP_SCHED_VALID;

	qcount = min_t(int, ch->num_queue_pairs, pf->num_lan_msix);
	ch->num_queue_pairs = qcount;

	/* find the next higher power-of-2 of num queue pairs */
	pow = ilog2(qcount);
	if (!is_power_of_2(qcount))
		pow++;

	qmap = (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) |
		(pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT);

	/* Setup queue TC[0].qmap for given VSI context */
	ctxt->info.tc_mapping[0] = cpu_to_le16(qmap);

	ctxt->info.up_enable_bits = 0x1; /* TC0 enabled */
	ctxt->info.mapping_flags |= cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG);
	ctxt->info.queue_mapping[0] = cpu_to_le16(ch->base_queue);
	ctxt->info.valid_sections |= cpu_to_le16(sections);
}

Project: linux
File: i40e_main.c

static void i40e_udp_tunnel_del(struct net_device *netdev,
				struct udp_tunnel_info *ti)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	u16 port = ntohs(ti->port);
	u8 idx;

	idx = i40e_get_udp_port_idx(pf, port);

	/* Check if port already exists */
	if (idx >= I40E_MAX_PF_UDP_OFFLOAD_PORTS)
		goto not_found;

	switch (ti->type) {
	case UDP_TUNNEL_TYPE_VXLAN:
		if (pf->udp_ports[idx].type != I40E_AQC_TUNNEL_TYPE_VXLAN)
			goto not_found;
		break;
	case UDP_TUNNEL_TYPE_GENEVE:
		if (pf->udp_ports[idx].type != I40E_AQC_TUNNEL_TYPE_NGE)
			goto not_found;
		break;
	default:
		goto not_found;
	}

	/* if port exists, set it to 0 (mark for deletion)
	 * and make it pending
	 */
	pf->udp_ports[idx].port = 0;

	/* Toggle pending bit instead of setting it. This way if we are
	 * deleting a port that has yet to be added we just clear the pending
	 * bit and don't have to worry about it.
	 */
	pf->pending_udp_bitmap ^= BIT_ULL(idx);
	set_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state);

	return;
not_found:
	netdev_warn(netdev, "UDP port %d was not found, not deleting\n",
		    port);
}

Project: linux
File: i40e_main.c

static int i40e_veb_get_bw_info(struct i40e_veb *veb)
{
	struct i40e_aqc_query_switching_comp_ets_config_resp ets_data;
	struct i40e_aqc_query_switching_comp_bw_config_resp bw_data;
	struct i40e_pf *pf = veb->pf;
	struct i40e_hw *hw = &pf->hw;
	u32 tc_bw_max;
	int ret = 0;
	int i;

	ret = i40e_aq_query_switch_comp_bw_config(hw, veb->seid,
						  &bw_data, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "query veb bw config failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, hw->aq.asq_last_status));
		goto out;
	}

	ret = i40e_aq_query_switch_comp_ets_config(hw, veb->seid,
						   &ets_data, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "query veb bw ets config failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, hw->aq.asq_last_status));
		goto out;
	}

	veb->bw_limit = le16_to_cpu(ets_data.port_bw_limit);
	veb->bw_max_quanta = ets_data.tc_bw_max;
	veb->is_abs_credits = bw_data.absolute_credits_enable;
	veb->enabled_tc = ets_data.tc_valid_bits;
	tc_bw_max = le16_to_cpu(bw_data.tc_bw_max[0]) |
		    (le16_to_cpu(bw_data.tc_bw_max[1]) << 16);
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		veb->bw_tc_share_credits[i] = bw_data.tc_bw_share_credits[i];
		veb->bw_tc_limit_credits[i] =
					le16_to_cpu(bw_data.tc_bw_limits[i]);
		veb->bw_tc_max_quanta[i] = ((tc_bw_max >> (i*4)) & 0x7);
	}

out:
	return ret;
}

Project: linux
File: i40e_main.c

void i40e_down(struct i40e_vsi *vsi)
{
	int i;

	/* It is assumed that the caller of this function
	 * sets the vsi->state __I40E_VSI_DOWN bit.
	 */
	if (vsi->netdev) {
		netif_carrier_off(vsi->netdev);
		netif_tx_disable(vsi->netdev);
	}
	i40e_vsi_disable_irq(vsi);
	i40e_vsi_stop_rings(vsi);
	if (vsi->type == I40E_VSI_MAIN &&
	    vsi->back->flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED)
		i40e_force_link_state(vsi->back, false);
	i40e_napi_disable_all(vsi);

	for (i = 0; i < vsi->num_queue_pairs; i++) {
		i40e_clean_tx_ring(vsi->tx_rings[i]);
		if (i40e_enabled_xdp_vsi(vsi)) {
			/* Make sure that in-progress ndo_xdp_xmit
			 * calls are completed.
			 */
			synchronize_rcu();
			i40e_clean_tx_ring(vsi->xdp_rings[i]);
		}
		i40e_clean_rx_ring(vsi->rx_rings[i]);
	}

}

Project: linux
File: i40e_main.c

static int i40e_get_phys_port_id(struct net_device *netdev,
				 struct netdev_phys_item_id *ppid)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;

	if (!(pf->hw_features & I40E_HW_PORT_ID_VALID))
		return -EOPNOTSUPP;

	ppid->id_len = min_t(int, sizeof(hw->mac.port_addr), sizeof(ppid->id));
	memcpy(ppid->id, hw->mac.port_addr, ppid->id_len);

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_exit_busy_conf(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;

	clear_bit(__I40E_CONFIG_BUSY, pf->state);
}

Project: linux
File: i40e_main.c

void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
{
	struct i40e_fdir_filter *filter;
	u32 fcnt_prog, fcnt_avail;
	struct hlist_node *node;

	if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
		return;

	/* Check if we have enough room to re-enable FDir SB capability. */
	fcnt_prog = i40e_get_global_fd_count(pf);
	fcnt_avail = pf->fdir_pf_filter_count;
	if ((fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) ||
	    (pf->fd_add_err == 0) ||
	    (i40e_get_current_atr_cnt(pf) < pf->fd_atr_cnt))
		i40e_reenable_fdir_sb(pf);

	/* We should wait for even more space before re-enabling ATR.
	 * Additionally, we cannot enable ATR as long as we still have TCP SB
	 * rules active.
	 */
	if ((fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR)) &&
	    (pf->fd_tcp4_filter_cnt == 0))
		i40e_reenable_fdir_atr(pf);

	/* if hw had a problem adding a filter, delete it */
	if (pf->fd_inv > 0) {
		hlist_for_each_entry_safe(filter, node,
					  &pf->fdir_filter_list, fdir_node)
			if (filter->fd_id == pf->fd_inv)
				i40e_delete_invalid_filter(pf, filter);
	}
}

Project: linux
File: i40e_main.c

static int i40e_vlan_rx_add_vid(struct net_device *netdev,
				__always_unused __be16 proto, u16 vid)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	int ret = 0;

	if (vid >= VLAN_N_VID)
		return -EINVAL;

	ret = i40e_vsi_add_vlan(vsi, vid);
	if (!ret)
		set_bit(vid, vsi->active_vlans);

	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_update_pf_stats(struct i40e_pf *pf)
{
	struct i40e_hw_port_stats *osd = &pf->stats_offsets;
	struct i40e_hw_port_stats *nsd = &pf->stats;
	struct i40e_hw *hw = &pf->hw;
	u32 val;
	int i;

	i40e_stat_update48(hw, I40E_GLPRT_GORCH(hw->port),
			   I40E_GLPRT_GORCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.rx_bytes, &nsd->eth.rx_bytes);
	i40e_stat_update48(hw, I40E_GLPRT_GOTCH(hw->port),
			   I40E_GLPRT_GOTCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.tx_bytes, &nsd->eth.tx_bytes);
	i40e_stat_update32(hw, I40E_GLPRT_RDPC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.rx_discards,
			   &nsd->eth.rx_discards);
	i40e_stat_update48(hw, I40E_GLPRT_UPRCH(hw->port),
			   I40E_GLPRT_UPRCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.rx_unicast,
			   &nsd->eth.rx_unicast);
	i40e_stat_update48(hw, I40E_GLPRT_MPRCH(hw->port),
			   I40E_GLPRT_MPRCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.rx_multicast,
			   &nsd->eth.rx_multicast);
	i40e_stat_update48(hw, I40E_GLPRT_BPRCH(hw->port),
			   I40E_GLPRT_BPRCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.rx_broadcast,
			   &nsd->eth.rx_broadcast);
	i40e_stat_update48(hw, I40E_GLPRT_UPTCH(hw->port),
			   I40E_GLPRT_UPTCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.tx_unicast,
			   &nsd->eth.tx_unicast);
	i40e_stat_update48(hw, I40E_GLPRT_MPTCH(hw->port),
			   I40E_GLPRT_MPTCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.tx_multicast,
			   &nsd->eth.tx_multicast);
	i40e_stat_update48(hw, I40E_GLPRT_BPTCH(hw->port),
			   I40E_GLPRT_BPTCL(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->eth.tx_broadcast,
			   &nsd->eth.tx_broadcast);

	i40e_stat_update32(hw, I40E_GLPRT_TDOLD(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_dropped_link_down,
			   &nsd->tx_dropped_link_down);

	i40e_stat_update32(hw, I40E_GLPRT_CRCERRS(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->crc_errors, &nsd->crc_errors);

	i40e_stat_update32(hw, I40E_GLPRT_ILLERRC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->illegal_bytes, &nsd->illegal_bytes);

	i40e_stat_update32(hw, I40E_GLPRT_MLFC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->mac_local_faults,
			   &nsd->mac_local_faults);
	i40e_stat_update32(hw, I40E_GLPRT_MRFC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->mac_remote_faults,
			   &nsd->mac_remote_faults);

	i40e_stat_update32(hw, I40E_GLPRT_RLEC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_length_errors,
			   &nsd->rx_length_errors);

	i40e_stat_update32(hw, I40E_GLPRT_LXONRXC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->link_xon_rx, &nsd->link_xon_rx);
	i40e_stat_update32(hw, I40E_GLPRT_LXONTXC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->link_xon_tx, &nsd->link_xon_tx);
	i40e_stat_update32(hw, I40E_GLPRT_LXOFFRXC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->link_xoff_rx, &nsd->link_xoff_rx);
	i40e_stat_update32(hw, I40E_GLPRT_LXOFFTXC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->link_xoff_tx, &nsd->link_xoff_tx);

	for (i = 0; i < 8; i++) {
		i40e_stat_update32(hw, I40E_GLPRT_PXOFFRXC(hw->port, i),
				   pf->stat_offsets_loaded,
				   &osd->priority_xoff_rx[i],
				   &nsd->priority_xoff_rx[i]);
		i40e_stat_update32(hw, I40E_GLPRT_PXONRXC(hw->port, i),
				   pf->stat_offsets_loaded,
				   &osd->priority_xon_rx[i],
				   &nsd->priority_xon_rx[i]);
		i40e_stat_update32(hw, I40E_GLPRT_PXONTXC(hw->port, i),
				   pf->stat_offsets_loaded,
				   &osd->priority_xon_tx[i],
				   &nsd->priority_xon_tx[i]);
		i40e_stat_update32(hw, I40E_GLPRT_PXOFFTXC(hw->port, i),
				   pf->stat_offsets_loaded,
				   &osd->priority_xoff_tx[i],
				   &nsd->priority_xoff_tx[i]);
		i40e_stat_update32(hw,
				   I40E_GLPRT_RXON2OFFCNT(hw->port, i),
				   pf->stat_offsets_loaded,
				   &osd->priority_xon_2_xoff[i],
				   &nsd->priority_xon_2_xoff[i]);
	}

	i40e_stat_update48(hw, I40E_GLPRT_PRC64H(hw->port),
			   I40E_GLPRT_PRC64L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_64, &nsd->rx_size_64);
	i40e_stat_update48(hw, I40E_GLPRT_PRC127H(hw->port),
			   I40E_GLPRT_PRC127L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_127, &nsd->rx_size_127);
	i40e_stat_update48(hw, I40E_GLPRT_PRC255H(hw->port),
			   I40E_GLPRT_PRC255L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_255, &nsd->rx_size_255);
	i40e_stat_update48(hw, I40E_GLPRT_PRC511H(hw->port),
			   I40E_GLPRT_PRC511L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_511, &nsd->rx_size_511);
	i40e_stat_update48(hw, I40E_GLPRT_PRC1023H(hw->port),
			   I40E_GLPRT_PRC1023L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_1023, &nsd->rx_size_1023);
	i40e_stat_update48(hw, I40E_GLPRT_PRC1522H(hw->port),
			   I40E_GLPRT_PRC1522L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_1522, &nsd->rx_size_1522);
	i40e_stat_update48(hw, I40E_GLPRT_PRC9522H(hw->port),
			   I40E_GLPRT_PRC9522L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_size_big, &nsd->rx_size_big);

	i40e_stat_update48(hw, I40E_GLPRT_PTC64H(hw->port),
			   I40E_GLPRT_PTC64L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_64, &nsd->tx_size_64);
	i40e_stat_update48(hw, I40E_GLPRT_PTC127H(hw->port),
			   I40E_GLPRT_PTC127L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_127, &nsd->tx_size_127);
	i40e_stat_update48(hw, I40E_GLPRT_PTC255H(hw->port),
			   I40E_GLPRT_PTC255L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_255, &nsd->tx_size_255);
	i40e_stat_update48(hw, I40E_GLPRT_PTC511H(hw->port),
			   I40E_GLPRT_PTC511L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_511, &nsd->tx_size_511);
	i40e_stat_update48(hw, I40E_GLPRT_PTC1023H(hw->port),
			   I40E_GLPRT_PTC1023L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_1023, &nsd->tx_size_1023);
	i40e_stat_update48(hw, I40E_GLPRT_PTC1522H(hw->port),
			   I40E_GLPRT_PTC1522L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_1522, &nsd->tx_size_1522);
	i40e_stat_update48(hw, I40E_GLPRT_PTC9522H(hw->port),
			   I40E_GLPRT_PTC9522L(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->tx_size_big, &nsd->tx_size_big);

	i40e_stat_update32(hw, I40E_GLPRT_RUC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_undersize, &nsd->rx_undersize);
	i40e_stat_update32(hw, I40E_GLPRT_RFC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_fragments, &nsd->rx_fragments);
	i40e_stat_update32(hw, I40E_GLPRT_ROC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_oversize, &nsd->rx_oversize);
	i40e_stat_update32(hw, I40E_GLPRT_RJC(hw->port),
			   pf->stat_offsets_loaded,
			   &osd->rx_jabber, &nsd->rx_jabber);

	/* FDIR stats */
	i40e_stat_update_and_clear32(hw,
			I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(hw->pf_id)),
			&nsd->fd_atr_match);
	i40e_stat_update_and_clear32(hw,
			I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(hw->pf_id)),
			&nsd->fd_sb_match);
	i40e_stat_update_and_clear32(hw,
			I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(hw->pf_id)),
			&nsd->fd_atr_tunnel_match);

	val = rd32(hw, I40E_PRTPM_EEE_STAT);
	nsd->tx_lpi_status =
		       (val & I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK) >>
			I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT;
	nsd->rx_lpi_status =
		       (val & I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK) >>
			I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT;
	i40e_stat_update32(hw, I40E_PRTPM_TLPIC,
			   pf->stat_offsets_loaded,
			   &osd->tx_lpi_count, &nsd->tx_lpi_count);
	i40e_stat_update32(hw, I40E_PRTPM_RLPIC,
			   pf->stat_offsets_loaded,
			   &osd->rx_lpi_count, &nsd->rx_lpi_count);

	if (pf->flags & I40E_FLAG_FD_SB_ENABLED &&
	    !test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
		nsd->fd_sb_status = true;
	else
		nsd->fd_sb_status = false;

	if (pf->flags & I40E_FLAG_FD_ATR_ENABLED &&
	    !test_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state))
		nsd->fd_atr_status = true;
	else
		nsd->fd_atr_status = false;

	pf->stat_offsets_loaded = true;
}

Project: linux
File: i40e_main.c

int i40e_add_vlan_all_mac(struct i40e_vsi *vsi, s16 vid)
{
	struct i40e_mac_filter *f, *add_f;
	struct hlist_node *h;
	int bkt;

	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
		if (f->state == I40E_FILTER_REMOVE)
			continue;
		add_f = i40e_add_filter(vsi, f->macaddr, vid);
		if (!add_f) {
			dev_info(&vsi->back->pdev->dev,
				 "Could not add vlan filter %d for %pM\n",
				 vid, f->macaddr);
			return -ENOMEM;
		}
	}

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_queue_pair_toggle_rings(struct i40e_vsi *vsi, int queue_pair,
					bool enable)
{
	struct i40e_pf *pf = vsi->back;
	int pf_q, ret = 0;

	pf_q = vsi->base_queue + queue_pair;
	ret = i40e_control_wait_tx_q(vsi->seid, pf, pf_q,
				     false /*is xdp*/, enable);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "VSI seid %d Tx ring %d %sable timeout\n",
			 vsi->seid, pf_q, (enable ? "en" : "dis"));
		return ret;
	}

	i40e_control_rx_q(pf, pf_q, enable);
	ret = i40e_pf_rxq_wait(pf, pf_q, enable);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "VSI seid %d Rx ring %d %sable timeout\n",
			 vsi->seid, pf_q, (enable ? "en" : "dis"));
		return ret;
	}

	/* Due to HW errata, on Rx disable only, the register can
	 * indicate done before it really is. Needs 50ms to be sure
	 */
	if (!enable)
		mdelay(50);

	if (!i40e_enabled_xdp_vsi(vsi))
		return ret;

	ret = i40e_control_wait_tx_q(vsi->seid, pf,
				     pf_q + vsi->alloc_queue_pairs,
				     true /*is xdp*/, enable);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "VSI seid %d XDP Tx ring %d %sable timeout\n",
			 vsi->seid, pf_q, (enable ? "en" : "dis"));
	}

	return ret;
}

Project: linux
File: i40e_main.c

void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan)
{
	struct i40e_mac_filter *f;

	if (!vsi || !macaddr)
		return;

	f = i40e_find_filter(vsi, macaddr, vlan);
	__i40e_del_filter(vsi, f);
}

Project: linux
File: i40e_main.c

void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags)
{
	rtnl_lock();
	i40e_do_reset(pf, reset_flags, true);
	rtnl_unlock();
}

Project: linux
File: i40e_main.c

static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
{

	/* if interface is down do nothing */
	if (test_bit(__I40E_DOWN, pf->state))
		return;

	if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
		i40e_fdir_flush_and_replay(pf);

	i40e_fdir_check_and_reenable(pf);

}

Project: linux
File: i40e_main.c

static int i40e_ndo_bridge_setlink(struct net_device *dev,
				   struct nlmsghdr *nlh,
				   u16 flags,
				   struct netlink_ext_ack *extack)
{
	struct i40e_netdev_priv *np = netdev_priv(dev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_veb *veb = NULL;
	struct nlattr *attr, *br_spec;
	int i, rem;

	/* Only for PF VSI for now */
	if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
		return -EOPNOTSUPP;

	/* Find the HW bridge for PF VSI */
	for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
		if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
			veb = pf->veb[i];
	}

	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;

		/* Insert a new HW bridge */
		if (!veb) {
			veb = i40e_veb_setup(pf, 0, vsi->uplink_seid, vsi->seid,
					     vsi->tc_config.enabled_tc);
			if (veb) {
				veb->bridge_mode = mode;
				i40e_config_bridge_mode(veb);
			} else {
				/* No Bridge HW offload available */
				return -ENOENT;
			}
			break;
		} else if (mode != veb->bridge_mode) {
			/* Existing HW bridge but different mode needs reset */
			veb->bridge_mode = mode;
			/* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
			if (mode == BRIDGE_MODE_VEB)
				pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
			else
				pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
			i40e_do_reset(pf, I40E_PF_RESET_FLAG, true);
			break;
		}
	}

	return 0;
}

Project: linux
File: i40e_main.c

static u8 i40e_get_iscsi_tc_map(struct i40e_pf *pf)
{
	struct i40e_dcb_app_priority_table app;
	struct i40e_hw *hw = &pf->hw;
	u8 enabled_tc = 1; /* TC0 is always enabled */
	u8 tc, i;
	/* Get the iSCSI APP TLV */
	struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config;

	for (i = 0; i < dcbcfg->numapps; i++) {
		app = dcbcfg->app[i];
		if (app.selector == I40E_APP_SEL_TCPIP &&
		    app.protocolid == I40E_APP_PROTOID_ISCSI) {
			tc = dcbcfg->etscfg.prioritytable[app.priority];
			enabled_tc |= BIT(tc);
			break;
		}
	}

	return enabled_tc;
}

Project: linux
File: i40e_main.c

bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features)
{
	bool need_reset = false;

	/* Check if Flow Director n-tuple support was enabled or disabled.  If
	 * the state changed, we need to reset.
	 */
	if (features & NETIF_F_NTUPLE) {
		/* Enable filters and mark for reset */
		if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
			need_reset = true;
		/* enable FD_SB only if there is MSI-X vector and no cloud
		 * filters exist
		 */
		if (pf->num_fdsb_msix > 0 && !pf->num_cloud_filters) {
			pf->flags |= I40E_FLAG_FD_SB_ENABLED;
			pf->flags &= ~I40E_FLAG_FD_SB_INACTIVE;
		}
	} else {
		/* turn off filters, mark for reset and clear SW filter list */
		if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
			need_reset = true;
			i40e_fdir_filter_exit(pf);
		}
		pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
		clear_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state);
		pf->flags |= I40E_FLAG_FD_SB_INACTIVE;

		/* reset fd counters */
		pf->fd_add_err = 0;
		pf->fd_atr_cnt = 0;
		/* if ATR was auto disabled it can be re-enabled. */
		if (test_and_clear_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state))
			if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
			    (I40E_DEBUG_FD & pf->hw.debug_mask))
				dev_info(&pf->pdev->dev, "ATR re-enabled.\n");
	}
	return need_reset;
}

Project: linux
File: i40e_main.c

void i40e_vsi_reset_stats(struct i40e_vsi *vsi)
{
	struct rtnl_link_stats64 *ns;
	int i;

	if (!vsi)
		return;

	ns = i40e_get_vsi_stats_struct(vsi);
	memset(ns, 0, sizeof(*ns));
	memset(&vsi->net_stats_offsets, 0, sizeof(vsi->net_stats_offsets));
	memset(&vsi->eth_stats, 0, sizeof(vsi->eth_stats));
	memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets));
	if (vsi->rx_rings && vsi->rx_rings[0]) {
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			memset(&vsi->rx_rings[i]->stats, 0,
			       sizeof(vsi->rx_rings[i]->stats));
			memset(&vsi->rx_rings[i]->rx_stats, 0,
			       sizeof(vsi->rx_rings[i]->rx_stats));
			memset(&vsi->tx_rings[i]->stats, 0,
			       sizeof(vsi->tx_rings[i]->stats));
			memset(&vsi->tx_rings[i]->tx_stats, 0,
			       sizeof(vsi->tx_rings[i]->tx_stats));
		}
	}
	vsi->stat_offsets_loaded = false;
}

Project: linux
File: i40e_main.c

static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
{
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
	struct i40e_vsi_context ctxt;
	int ret;

	ctxt.seid = pf->main_vsi_seid;
	ctxt.pf_num = pf->hw.pf_id;
	ctxt.vf_num = 0;
	ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "couldn't get PF vsi config, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
		return;
	}
	ctxt.flags = I40E_AQ_VSI_TYPE_PF;
	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
	ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);

	ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "update vsi switch failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
	}
}

Project: linux
File: i40e_main.c

static void i40e_napi_disable_all(struct i40e_vsi *vsi)
{
	int q_idx;

	if (!vsi->netdev)
		return;

	for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) {
		struct i40e_q_vector *q_vector = vsi->q_vectors[q_idx];

		if (q_vector->rx.ring || q_vector->tx.ring)
			napi_disable(&q_vector->napi);
	}
}

Project: linux
File: i40e_main.c

int i40e_vsi_start_rings(struct i40e_vsi *vsi)
{
	int ret = 0;

	/* do rx first for enable and last for disable */
	ret = i40e_vsi_control_rx(vsi, true);
	if (ret)
		return ret;
	ret = i40e_vsi_control_tx(vsi, true);

	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_watchdog_subtask(struct i40e_pf *pf)
{
	int i;

	/* if interface is down do nothing */
	if (test_bit(__I40E_DOWN, pf->state) ||
	    test_bit(__I40E_CONFIG_BUSY, pf->state))
		return;

	/* make sure we don't do these things too often */
	if (time_before(jiffies, (pf->service_timer_previous +
				  pf->service_timer_period)))
		return;
	pf->service_timer_previous = jiffies;

	if ((pf->flags & I40E_FLAG_LINK_POLLING_ENABLED) ||
	    test_bit(__I40E_TEMP_LINK_POLLING, pf->state))
		i40e_link_event(pf);

	/* Update the stats for active netdevs so the network stack
	 * can look at updated numbers whenever it cares to
	 */
	for (i = 0; i < pf->num_alloc_vsi; i++)
		if (pf->vsi[i] && pf->vsi[i]->netdev)
			i40e_update_stats(pf->vsi[i]);

	if (pf->flags & I40E_FLAG_VEB_STATS_ENABLED) {
		/* Update the stats for the active switching components */
		for (i = 0; i < I40E_MAX_VEB; i++)
			if (pf->veb[i])
				i40e_update_veb_stats(pf->veb[i]);
	}

	i40e_ptp_rx_hang(pf);
	i40e_ptp_tx_hang(pf);
}

Project: linux
File: i40e_main.c

static int i40e_vsi_config_rss(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	u8 seed[I40E_HKEY_ARRAY_SIZE];
	u8 *lut;
	int ret;

	if (!(pf->hw_features & I40E_HW_RSS_AQ_CAPABLE))
		return 0;
	if (!vsi->rss_size)
		vsi->rss_size = min_t(int, pf->alloc_rss_size,
				      vsi->num_queue_pairs);
	if (!vsi->rss_size)
		return -EINVAL;
	lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
	if (!lut)
		return -ENOMEM;

	/* Use the user configured hash keys and lookup table if there is one,
	 * otherwise use default
	 */
	if (vsi->rss_lut_user)
		memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size);
	else
		i40e_fill_rss_lut(pf, lut, vsi->rss_table_size, vsi->rss_size);
	if (vsi->rss_hkey_user)
		memcpy(seed, vsi->rss_hkey_user, I40E_HKEY_ARRAY_SIZE);
	else
		netdev_rss_key_fill((void *)seed, I40E_HKEY_ARRAY_SIZE);
	ret = i40e_config_rss_aq(vsi, seed, lut, vsi->rss_table_size);
	kfree(lut);
	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_channel_config_bw(struct i40e_vsi *vsi, struct i40e_channel *ch,
				  u8 *bw_share)
{
	struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
	i40e_status ret;
	int i;

	bw_data.tc_valid_bits = ch->enabled_tc;
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
		bw_data.tc_bw_credits[i] = bw_share[i];

	ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, ch->seid,
				       &bw_data, NULL);
	if (ret) {
		dev_info(&vsi->back->pdev->dev,
			 "Config VSI BW allocation per TC failed, aq_err: %d for new_vsi->seid %u\n",
			 vsi->back->hw.aq.asq_last_status, ch->seid);
		return -EINVAL;
	}

	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
		ch->info.qs_handle[i] = bw_data.qs_handles[i];

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_vsi_delete(struct i40e_vsi *vsi)
{
	/* remove default VSI is not allowed */
	if (vsi == vsi->back->vsi[vsi->back->lan_vsi])
		return;

	i40e_aq_delete_element(&vsi->back->hw, vsi->seid, NULL);
}

Project: linux
File: i40e_main.c

static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi)
{
	int i;

	if (!vsi->rx_rings)
		return;

	for (i = 0; i < vsi->num_queue_pairs; i++)
		if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc)
			i40e_free_rx_resources(vsi->rx_rings[i]);
}

Project: linux
File: i40e_main.c

int i40e_vsi_release(struct i40e_vsi *vsi)
{
	struct i40e_mac_filter *f;
	struct hlist_node *h;
	struct i40e_veb *veb = NULL;
	struct i40e_pf *pf;
	u16 uplink_seid;
	int i, n, bkt;

	pf = vsi->back;

	/* release of a VEB-owner or last VSI is not allowed */
	if (vsi->flags & I40E_VSI_FLAG_VEB_OWNER) {
		dev_info(&pf->pdev->dev, "VSI %d has existing VEB %d\n",
			 vsi->seid, vsi->uplink_seid);
		return -ENODEV;
	}
	if (vsi == pf->vsi[pf->lan_vsi] &&
	    !test_bit(__I40E_DOWN, pf->state)) {
		dev_info(&pf->pdev->dev, "Can't remove PF VSI\n");
		return -ENODEV;
	}

	uplink_seid = vsi->uplink_seid;
	if (vsi->type != I40E_VSI_SRIOV) {
		if (vsi->netdev_registered) {
			vsi->netdev_registered = false;
			if (vsi->netdev) {
				/* results in a call to i40e_close() */
				unregister_netdev(vsi->netdev);
			}
		} else {
			i40e_vsi_close(vsi);
		}
		i40e_vsi_disable_irq(vsi);
	}

	spin_lock_bh(&vsi->mac_filter_hash_lock);

	/* clear the sync flag on all filters */
	if (vsi->netdev) {
		__dev_uc_unsync(vsi->netdev, NULL);
		__dev_mc_unsync(vsi->netdev, NULL);
	}

	/* make sure any remaining filters are marked for deletion */
	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
		__i40e_del_filter(vsi, f);

	spin_unlock_bh(&vsi->mac_filter_hash_lock);

	i40e_sync_vsi_filters(vsi);

	i40e_vsi_delete(vsi);
	i40e_vsi_free_q_vectors(vsi);
	if (vsi->netdev) {
		free_netdev(vsi->netdev);
		vsi->netdev = NULL;
	}
	i40e_vsi_clear_rings(vsi);
	i40e_vsi_clear(vsi);

	/* If this was the last thing on the VEB, except for the
	 * controlling VSI, remove the VEB, which puts the controlling
	 * VSI onto the next level down in the switch.
	 *
	 * Well, okay, there's one more exception here: don't remove
	 * the orphan VEBs yet.  We'll wait for an explicit remove request
	 * from up the network stack.
	 */
	for (n = 0, i = 0; i < pf->num_alloc_vsi; i++) {
		if (pf->vsi[i] &&
		    pf->vsi[i]->uplink_seid == uplink_seid &&
		    (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
			n++;      /* count the VSIs */
		}
	}
	for (i = 0; i < I40E_MAX_VEB; i++) {
		if (!pf->veb[i])
			continue;
		if (pf->veb[i]->uplink_seid == uplink_seid)
			n++;     /* count the VEBs */
		if (pf->veb[i]->seid == uplink_seid)
			veb = pf->veb[i];
	}
	if (n == 0 && veb && veb->uplink_seid != 0)
		i40e_veb_release(veb);

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_configure_queue_channels(struct i40e_vsi *vsi)
{
	struct i40e_channel *ch;
	u64 max_rate = 0;
	int ret = 0, i;

	/* Create app vsi with the TCs. Main VSI with TC0 is already set up */
	vsi->tc_seid_map[0] = vsi->seid;
	for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		if (vsi->tc_config.enabled_tc & BIT(i)) {
			ch = kzalloc(sizeof(*ch), GFP_KERNEL);
			if (!ch) {
				ret = -ENOMEM;
				goto err_free;
			}

			INIT_LIST_HEAD(&ch->list);
			ch->num_queue_pairs =
				vsi->tc_config.tc_info[i].qcount;
			ch->base_queue =
				vsi->tc_config.tc_info[i].qoffset;

			/* Bandwidth limit through tc interface is in bytes/s,
			 * change to Mbit/s
			 */
			max_rate = vsi->mqprio_qopt.max_rate[i];
			do_div(max_rate, I40E_BW_MBPS_DIVISOR);
			ch->max_tx_rate = max_rate;

			list_add_tail(&ch->list, &vsi->ch_list);

			ret = i40e_create_queue_channel(vsi, ch);
			if (ret) {
				dev_err(&vsi->back->pdev->dev,
					"Failed creating queue channel with TC%d: queues %d\n",
					i, ch->num_queue_pairs);
				goto err_free;
			}
			vsi->tc_seid_map[i] = ch->seid;
		}
	}
	return ret;

err_free:
	i40e_remove_queue_channels(vsi);
	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_unquiesce_vsi(struct i40e_vsi *vsi)
{
	if (!test_and_clear_bit(__I40E_VSI_NEEDS_RESTART, vsi->state))
		return;

	if (vsi->netdev && netif_running(vsi->netdev))
		vsi->netdev->netdev_ops->ndo_open(vsi->netdev);
	else
		i40e_vsi_open(vsi);   /* this clears the DOWN bit */
}

Project: linux
File: i40e_main.c

static void i40e_free_macvlan_channels(struct i40e_vsi *vsi)
{
	struct i40e_channel *ch, *ch_tmp;
	int ret;

	if (list_empty(&vsi->macvlan_list))
		return;

	list_for_each_entry_safe(ch, ch_tmp, &vsi->macvlan_list, list) {
		struct i40e_vsi *parent_vsi;

		if (i40e_is_channel_macvlan(ch)) {
			i40e_reset_ch_rings(vsi, ch);
			clear_bit(ch->fwd->bit_no, vsi->fwd_bitmask);
			netdev_unbind_sb_channel(vsi->netdev, ch->fwd->netdev);
			netdev_set_sb_channel(ch->fwd->netdev, 0);
			kfree(ch->fwd);
			ch->fwd = NULL;
		}

		list_del(&ch->list);
		parent_vsi = ch->parent_vsi;
		if (!parent_vsi || !ch->initialized) {
			kfree(ch);
			continue;
		}

		/* remove the VSI */
		ret = i40e_aq_delete_element(&vsi->back->hw, ch->seid,
					     NULL);
		if (ret)
			dev_err(&vsi->back->pdev->dev,
				"unable to remove channel (%d) for parent VSI(%d)\n",
				ch->seid, parent_vsi->seid);
		kfree(ch);
	}
	vsi->macvlan_cnt = 0;
}

Project: linux
File: i40e_main.c

static void i40e_reenable_fdir_sb(struct i40e_pf *pf)
{
	if (test_and_clear_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
		if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
		    (I40E_DEBUG_FD & pf->hw.debug_mask))
			dev_info(&pf->pdev->dev, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
}

Project: linux
File: i40e_main.c

int i40e_close(struct net_device *netdev)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;

	i40e_vsi_close(vsi);

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_rebuild_cloud_filters(struct i40e_vsi *vsi, u16 seid)
{
	struct i40e_cloud_filter *cfilter;
	struct i40e_pf *pf = vsi->back;
	struct hlist_node *node;
	i40e_status ret;

	/* Add cloud filters back if they exist */
	hlist_for_each_entry_safe(cfilter, node, &pf->cloud_filter_list,
				  cloud_node) {
		if (cfilter->seid != seid)
			continue;

		if (cfilter->dst_port)
			ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
								true);
		else
			ret = i40e_add_del_cloud_filter(vsi, cfilter, true);

		if (ret) {
			dev_dbg(&pf->pdev->dev,
				"Failed to rebuild cloud filter, err %s aq_err %s\n",
				i40e_stat_str(&pf->hw, ret),
				i40e_aq_str(&pf->hw,
					    pf->hw.aq.asq_last_status));
			return ret;
		}
	}
	return 0;
}

Project: linux
File: i40e_main.c

void i40e_vlan_stripping_enable(struct i40e_vsi *vsi)
{
	struct i40e_vsi_context ctxt;
	i40e_status ret;

	/* Don't modify stripping options if a port VLAN is active */
	if (vsi->info.pvid)
		return;

	if ((vsi->info.valid_sections &
	     cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
	    ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0))
		return;  /* already enabled */

	vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
	vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL |
				    I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH;

	ctxt.seid = vsi->seid;
	ctxt.info = vsi->info;
	ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
	if (ret) {
		dev_info(&vsi->back->pdev->dev,
			 "update vlan stripping failed, err %s aq_err %s\n",
			 i40e_stat_str(&vsi->back->hw, ret),
			 i40e_aq_str(&vsi->back->hw,
				     vsi->back->hw.aq.asq_last_status));
	}
}

Project: linux
File: i40e_main.c

static int __maybe_unused i40e_suspend(struct device *dev)
{
	struct i40e_pf *pf = dev_get_drvdata(dev);
	struct i40e_hw *hw = &pf->hw;

	/* If we're already suspended, then there is nothing to do */
	if (test_and_set_bit(__I40E_SUSPENDED, pf->state))
		return 0;

	set_bit(__I40E_DOWN, pf->state);

	/* Ensure service task will not be running */
	del_timer_sync(&pf->service_timer);
	cancel_work_sync(&pf->service_task);

	/* Client close must be called explicitly here because the timer
	 * has been stopped.
	 */
	i40e_notify_client_of_netdev_close(pf->vsi[pf->lan_vsi], false);

	if (pf->wol_en && (pf->hw_features & I40E_HW_WOL_MC_MAGIC_PKT_WAKE))
		i40e_enable_mc_magic_wake(pf);

	/* Since we're going to destroy queues during the
	 * i40e_clear_interrupt_scheme() we should hold the RTNL lock for this
	 * whole section
	 */
	rtnl_lock();

	i40e_prep_for_reset(pf, true);

	wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
	wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));

	/* Clear the interrupt scheme and release our IRQs so that the system
	 * can safely hibernate even when there are a large number of CPUs.
	 * Otherwise hibernation might fail when mapping all the vectors back
	 * to CPU0.
	 */
	i40e_clear_interrupt_scheme(pf);

	rtnl_unlock();

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_up_complete(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	int err;

	if (pf->flags & I40E_FLAG_MSIX_ENABLED)
		i40e_vsi_configure_msix(vsi);
	else
		i40e_configure_msi_and_legacy(vsi);

	/* start rings */
	err = i40e_vsi_start_rings(vsi);
	if (err)
		return err;

	clear_bit(__I40E_VSI_DOWN, vsi->state);
	i40e_napi_enable_all(vsi);
	i40e_vsi_enable_irq(vsi);

	if ((pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP) &&
	    (vsi->netdev)) {
		i40e_print_link_message(vsi, true);
		netif_tx_start_all_queues(vsi->netdev);
		netif_carrier_on(vsi->netdev);
	}

	/* replay FDIR SB filters */
	if (vsi->type == I40E_VSI_FDIR) {
		/* reset fd counters */
		pf->fd_add_err = 0;
		pf->fd_atr_cnt = 0;
		i40e_fdir_filter_restore(vsi);
	}

	/* On the next run of the service_task, notify any clients of the new
	 * opened netdev
	 */
	set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state);
	i40e_service_event_schedule(pf);

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_restore_vlan(struct i40e_vsi *vsi)
{
	u16 vid;

	if (!vsi->netdev)
		return;

	if (vsi->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
		i40e_vlan_stripping_enable(vsi);
	else
		i40e_vlan_stripping_disable(vsi);

	for_each_set_bit(vid, vsi->active_vlans, VLAN_N_VID)
		i40e_vlan_rx_add_vid_up(vsi->netdev, htons(ETH_P_8021Q),
					vid);
}

Project: linux
File: i40e_main.c

static int i40e_config_rss_aq(struct i40e_vsi *vsi, const u8 *seed,
			      u8 *lut, u16 lut_size)
{
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	int ret = 0;

	if (seed) {
		struct i40e_aqc_get_set_rss_key_data *seed_dw =
			(struct i40e_aqc_get_set_rss_key_data *)seed;
		ret = i40e_aq_set_rss_key(hw, vsi->id, seed_dw);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Cannot set RSS key, err %s aq_err %s\n",
				 i40e_stat_str(hw, ret),
				 i40e_aq_str(hw, hw->aq.asq_last_status));
			return ret;
		}
	}
	if (lut) {
		bool pf_lut = vsi->type == I40E_VSI_MAIN ? true : false;

		ret = i40e_aq_set_rss_lut(hw, vsi->id, pf_lut, lut, lut_size);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Cannot set RSS lut, err %s aq_err %s\n",
				 i40e_stat_str(hw, ret),
				 i40e_aq_str(hw, hw->aq.asq_last_status));
			return ret;
		}
	}
	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_fdir_filter_exit(struct i40e_pf *pf)
{
	struct i40e_fdir_filter *filter;
	struct i40e_flex_pit *pit_entry, *tmp;
	struct hlist_node *node2;

	hlist_for_each_entry_safe(filter, node2,
				  &pf->fdir_filter_list, fdir_node) {
		hlist_del(&filter->fdir_node);
		kfree(filter);
	}

	list_for_each_entry_safe(pit_entry, tmp, &pf->l3_flex_pit_list, list) {
		list_del(&pit_entry->list);
		kfree(pit_entry);
	}
	INIT_LIST_HEAD(&pf->l3_flex_pit_list);

	list_for_each_entry_safe(pit_entry, tmp, &pf->l4_flex_pit_list, list) {
		list_del(&pit_entry->list);
		kfree(pit_entry);
	}
	INIT_LIST_HEAD(&pf->l4_flex_pit_list);

	pf->fdir_pf_active_filters = 0;
	pf->fd_tcp4_filter_cnt = 0;
	pf->fd_udp4_filter_cnt = 0;
	pf->fd_sctp4_filter_cnt = 0;
	pf->fd_ip4_filter_cnt = 0;

	/* Reprogram the default input set for TCP/IPv4 */
	i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_NONF_IPV4_TCP,
				I40E_L3_SRC_MASK | I40E_L3_DST_MASK |
				I40E_L4_SRC_MASK | I40E_L4_DST_MASK);

	/* Reprogram the default input set for UDP/IPv4 */
	i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_NONF_IPV4_UDP,
				I40E_L3_SRC_MASK | I40E_L3_DST_MASK |
				I40E_L4_SRC_MASK | I40E_L4_DST_MASK);

	/* Reprogram the default input set for SCTP/IPv4 */
	i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_NONF_IPV4_SCTP,
				I40E_L3_SRC_MASK | I40E_L3_DST_MASK |
				I40E_L4_SRC_MASK | I40E_L4_DST_MASK);

	/* Reprogram the default input set for Other/IPv4 */
	i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_NONF_IPV4_OTHER,
				I40E_L3_SRC_MASK | I40E_L3_DST_MASK);

	i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
				I40E_L3_SRC_MASK | I40E_L3_DST_MASK);
}

Project: linux
File: i40e_main.c

static void i40e_sync_udp_filters(struct i40e_pf *pf)
{
	int i;

	/* loop through and set pending bit for all active UDP filters */
	for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
		if (pf->udp_ports[i].port)
			pf->pending_udp_bitmap |= BIT_ULL(i);
	}

	set_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state);
}

Project: linux
File: i40e_main.c

void i40e_aqc_del_filters(struct i40e_vsi *vsi, const char *vsi_name,
			  struct i40e_aqc_remove_macvlan_element_data *list,
			  int num_del, int *retval)
{
	struct i40e_hw *hw = &vsi->back->hw;
	i40e_status aq_ret;
	int aq_err;

	aq_ret = i40e_aq_remove_macvlan(hw, vsi->seid, list, num_del, NULL);
	aq_err = hw->aq.asq_last_status;

	/* Explicitly ignore and do not report when firmware returns ENOENT */
	if (aq_ret && !(aq_err == I40E_AQ_RC_ENOENT)) {
		*retval = -EIO;
		dev_info(&vsi->back->pdev->dev,
			 "ignoring delete macvlan error on %s, err %s, aq_err %s\n",
			 vsi_name, i40e_stat_str(hw, aq_ret),
			 i40e_aq_str(hw, aq_err));
	}
}

Project: linux
File: i40e_main.c

static i40e_status i40e_pf_loop_reset(struct i40e_pf *pf)
{
	const unsigned short MAX_CNT = 1000;
	const unsigned short MSECS = 10;
	struct i40e_hw *hw = &pf->hw;
	i40e_status ret;
	int cnt;

	for (cnt = 0; cnt < MAX_CNT; ++cnt) {
		ret = i40e_pf_reset(hw);
		if (!ret)
			break;
		msleep(MSECS);
	}

	if (cnt == MAX_CNT) {
		dev_info(&pf->pdev->dev, "PF reset failed: %d\n", ret);
		return ret;
	}

	pf->pfr_count++;
	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_determine_queue_usage(struct i40e_pf *pf)
{
	int queues_left;
	int q_max;

	pf->num_lan_qps = 0;

	/* Find the max queues to be put into basic use.  We'll always be
	 * using TC0, whether or not DCB is running, and TC0 will get the
	 * big RSS set.
	 */
	queues_left = pf->hw.func_caps.num_tx_qp;

	if ((queues_left == 1) ||
	    !(pf->flags & I40E_FLAG_MSIX_ENABLED)) {
		/* one qp for PF, no queues for anything else */
		queues_left = 0;
		pf->alloc_rss_size = pf->num_lan_qps = 1;

		/* make sure all the fancies are disabled */
		pf->flags &= ~(I40E_FLAG_RSS_ENABLED	|
			       I40E_FLAG_IWARP_ENABLED	|
			       I40E_FLAG_FD_SB_ENABLED	|
			       I40E_FLAG_FD_ATR_ENABLED	|
			       I40E_FLAG_DCB_CAPABLE	|
			       I40E_FLAG_DCB_ENABLED	|
			       I40E_FLAG_SRIOV_ENABLED	|
			       I40E_FLAG_VMDQ_ENABLED);
		pf->flags |= I40E_FLAG_FD_SB_INACTIVE;
	} else if (!(pf->flags & (I40E_FLAG_RSS_ENABLED |
				  I40E_FLAG_FD_SB_ENABLED |
				  I40E_FLAG_FD_ATR_ENABLED |
				  I40E_FLAG_DCB_CAPABLE))) {
		/* one qp for PF */
		pf->alloc_rss_size = pf->num_lan_qps = 1;
		queues_left -= pf->num_lan_qps;

		pf->flags &= ~(I40E_FLAG_RSS_ENABLED	|
			       I40E_FLAG_IWARP_ENABLED	|
			       I40E_FLAG_FD_SB_ENABLED	|
			       I40E_FLAG_FD_ATR_ENABLED	|
			       I40E_FLAG_DCB_ENABLED	|
			       I40E_FLAG_VMDQ_ENABLED);
		pf->flags |= I40E_FLAG_FD_SB_INACTIVE;
	} else {
		/* Not enough queues for all TCs */
		if ((pf->flags & I40E_FLAG_DCB_CAPABLE) &&
		    (queues_left < I40E_MAX_TRAFFIC_CLASS)) {
			pf->flags &= ~(I40E_FLAG_DCB_CAPABLE |
					I40E_FLAG_DCB_ENABLED);
			dev_info(&pf->pdev->dev, "not enough queues for DCB. DCB is disabled.\n");
		}

		/* limit lan qps to the smaller of qps, cpus or msix */
		q_max = max_t(int, pf->rss_size_max, num_online_cpus());
		q_max = min_t(int, q_max, pf->hw.func_caps.num_tx_qp);
		q_max = min_t(int, q_max, pf->hw.func_caps.num_msix_vectors);
		pf->num_lan_qps = q_max;

		queues_left -= pf->num_lan_qps;
	}

	if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
		if (queues_left > 1) {
			queues_left -= 1; /* save 1 queue for FD */
		} else {
			pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
			pf->flags |= I40E_FLAG_FD_SB_INACTIVE;
			dev_info(&pf->pdev->dev, "not enough queues for Flow Director. Flow Director feature is disabled\n");
		}
	}

	if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) &&
	    pf->num_vf_qps && pf->num_req_vfs && queues_left) {
		pf->num_req_vfs = min_t(int, pf->num_req_vfs,
					(queues_left / pf->num_vf_qps));
		queues_left -= (pf->num_req_vfs * pf->num_vf_qps);
	}

	if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) &&
	    pf->num_vmdq_vsis && pf->num_vmdq_qps && queues_left) {
		pf->num_vmdq_vsis = min_t(int, pf->num_vmdq_vsis,
					  (queues_left / pf->num_vmdq_qps));
		queues_left -= (pf->num_vmdq_vsis * pf->num_vmdq_qps);
	}

	pf->queues_left = queues_left;
	dev_dbg(&pf->pdev->dev,
		"qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
		pf->hw.func_caps.num_tx_qp,
		!!(pf->flags & I40E_FLAG_FD_SB_ENABLED),
		pf->num_lan_qps, pf->alloc_rss_size, pf->num_req_vfs,
		pf->num_vf_qps, pf->num_vmdq_vsis, pf->num_vmdq_qps,
		queues_left);
}

Project: linux
File: i40e_main.c

static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit)
{
	u16 flags = 0;
	int ret;

	/* find out what's out there already */
	ret = i40e_fetch_switch_configuration(pf, false);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "couldn't fetch switch config, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
		return ret;
	}
	i40e_pf_reset_stats(pf);

	/* set the switch config bit for the whole device to
	 * support limited promisc or true promisc
	 * when user requests promisc. The default is limited
	 * promisc.
	*/

	if ((pf->hw.pf_id == 0) &&
	    !(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) {
		flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
		pf->last_sw_conf_flags = flags;
	}

	if (pf->hw.pf_id == 0) {
		u16 valid_flags;

		valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
		ret = i40e_aq_set_switch_config(&pf->hw, flags, valid_flags, 0,
						NULL);
		if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
			dev_info(&pf->pdev->dev,
				 "couldn't set switch config bits, err %s aq_err %s\n",
				 i40e_stat_str(&pf->hw, ret),
				 i40e_aq_str(&pf->hw,
					     pf->hw.aq.asq_last_status));
			/* not a fatal problem, just keep going */
		}
		pf->last_sw_conf_valid_flags = valid_flags;
	}

	/* first time setup */
	if (pf->lan_vsi == I40E_NO_VSI || reinit) {
		struct i40e_vsi *vsi = NULL;
		u16 uplink_seid;

		/* Set up the PF VSI associated with the PF's main VSI
		 * that is already in the HW switch
		 */
		if (pf->lan_veb < I40E_MAX_VEB && pf->veb[pf->lan_veb])
			uplink_seid = pf->veb[pf->lan_veb]->seid;
		else
			uplink_seid = pf->mac_seid;
		if (pf->lan_vsi == I40E_NO_VSI)
			vsi = i40e_vsi_setup(pf, I40E_VSI_MAIN, uplink_seid, 0);
		else if (reinit)
			vsi = i40e_vsi_reinit_setup(pf->vsi[pf->lan_vsi]);
		if (!vsi) {
			dev_info(&pf->pdev->dev, "setup of MAIN VSI failed\n");
			i40e_cloud_filter_exit(pf);
			i40e_fdir_teardown(pf);
			return -EAGAIN;
		}
	} else {
		/* force a reset of TC and queue layout configurations */
		u8 enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc;

		pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0;
		pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid;
		i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc);
	}
	i40e_vlan_stripping_disable(pf->vsi[pf->lan_vsi]);

	i40e_fdir_sb_setup(pf);

	/* Setup static PF queue filter control settings */
	ret = i40e_setup_pf_filter_control(pf);
	if (ret) {
		dev_info(&pf->pdev->dev, "setup_pf_filter_control failed: %d\n",
			 ret);
		/* Failure here should not stop continuing other steps */
	}

	/* enable RSS in the HW, even for only one queue, as the stack can use
	 * the hash
	 */
	if ((pf->flags & I40E_FLAG_RSS_ENABLED))
		i40e_pf_config_rss(pf);

	/* fill in link information and enable LSE reporting */
	i40e_link_event(pf);

	/* Initialize user-specific link properties */
	pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info &
				  I40E_AQ_AN_COMPLETED) ? true : false);

	i40e_ptp_init(pf);

	/* repopulate tunnel port filters */
	i40e_sync_udp_filters(pf);

	return ret;
}

Project: linux
File: i40e_main.c

void i40e_vlan_stripping_disable(struct i40e_vsi *vsi)
{
	struct i40e_vsi_context ctxt;
	i40e_status ret;

	/* Don't modify stripping options if a port VLAN is active */
	if (vsi->info.pvid)
		return;

	if ((vsi->info.valid_sections &
	     cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
	    ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==
	     I40E_AQ_VSI_PVLAN_EMOD_MASK))
		return;  /* already disabled */

	vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
	vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL |
				    I40E_AQ_VSI_PVLAN_EMOD_NOTHING;

	ctxt.seid = vsi->seid;
	ctxt.info = vsi->info;
	ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
	if (ret) {
		dev_info(&vsi->back->pdev->dev,
			 "update vlan stripping failed, err %s aq_err %s\n",
			 i40e_stat_str(&vsi->back->hw, ret),
			 i40e_aq_str(&vsi->back->hw,
				     vsi->back->hw.aq.asq_last_status));
	}
}

Project: linux
File: i40e_main.c

bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi)
{
	/* If we have a PVID, always operate in VLAN mode */
	if (vsi->info.pvid)
		return true;

	/* We need to operate in VLAN mode whenever we have any filters with
	 * a VLAN other than I40E_VLAN_ALL. We could check the table each
	 * time, incurring search cost repeatedly. However, we can notice two
	 * things:
	 *
	 * 1) the only place where we can gain a VLAN filter is in
	 *    i40e_add_filter.
	 *
	 * 2) the only place where filters are actually removed is in
	 *    i40e_sync_filters_subtask.
	 *
	 * Thus, we can simply use a boolean value, has_vlan_filters which we
	 * will set to true when we add a VLAN filter in i40e_add_filter. Then
	 * we have to perform the full search after deleting filters in
	 * i40e_sync_filters_subtask, but we already have to search
	 * filters here and can perform the check at the same time. This
	 * results in avoiding embedding a loop for VLAN mode inside another
	 * loop over all the filters, and should maintain correctness as noted
	 * above.
	 */
	return vsi->has_vlan_filter;
}

Project: linux
File: i40e_main.c

static void i40e_control_rx_q(struct i40e_pf *pf, int pf_q, bool enable)
{
	struct i40e_hw *hw = &pf->hw;
	u32 rx_reg;
	int i;

	for (i = 0; i < I40E_QTX_ENA_WAIT_COUNT; i++) {
		rx_reg = rd32(hw, I40E_QRX_ENA(pf_q));
		if (((rx_reg >> I40E_QRX_ENA_QENA_REQ_SHIFT) & 1) ==
		    ((rx_reg >> I40E_QRX_ENA_QENA_STAT_SHIFT) & 1))
			break;
		usleep_range(1000, 2000);
	}

	/* Skip if the queue is already in the requested state */
	if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK))
		return;

	/* turn on/off the queue */
	if (enable)
		rx_reg |= I40E_QRX_ENA_QENA_REQ_MASK;
	else
		rx_reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;

	wr32(hw, I40E_QRX_ENA(pf_q), rx_reg);
}

Project: linux
File: i40e_main.c

static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
				       u8 *bw_share)
{
	struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
	struct i40e_pf *pf = vsi->back;
	i40e_status ret;
	int i;

	/* There is no need to reset BW when mqprio mode is on.  */
	if (pf->flags & I40E_FLAG_TC_MQPRIO)
		return 0;
	if (!vsi->mqprio_qopt.qopt.hw && !(pf->flags & I40E_FLAG_DCB_ENABLED)) {
		ret = i40e_set_bw_limit(vsi, vsi->seid, 0);
		if (ret)
			dev_info(&pf->pdev->dev,
				 "Failed to reset tx rate for vsi->seid %u\n",
				 vsi->seid);
		return ret;
	}
	bw_data.tc_valid_bits = enabled_tc;
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
		bw_data.tc_bw_credits[i] = bw_share[i];

	ret = i40e_aq_config_vsi_tc_bw(&pf->hw, vsi->seid, &bw_data, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "AQ command Config VSI BW allocation per TC failed = %d\n",
			 pf->hw.aq.asq_last_status);
		return -EINVAL;
	}

	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
		vsi->info.qs_handle[i] = bw_data.qs_handles[i];

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
{
	int valid_id = (id | I40E_PILE_VALID_BIT);
	int count = 0;
	int i;

	if (!pile || index >= pile->num_entries)
		return -EINVAL;

	for (i = index;
	     i < pile->num_entries && pile->list[i] == valid_id;
	     i++) {
		pile->list[i] = 0;
		count++;
	}

	if (count && index < pile->search_hint)
		pile->search_hint = index;

	return count;
}

Project: linux
File: i40e_main.c

static int __maybe_unused i40e_resume(struct device *dev)
{
	struct i40e_pf *pf = dev_get_drvdata(dev);
	int err;

	/* If we're not suspended, then there is nothing to do */
	if (!test_bit(__I40E_SUSPENDED, pf->state))
		return 0;

	/* We need to hold the RTNL lock prior to restoring interrupt schemes,
	 * since we're going to be restoring queues
	 */
	rtnl_lock();

	/* We cleared the interrupt scheme when we suspended, so we need to
	 * restore it now to resume device functionality.
	 */
	err = i40e_restore_interrupt_scheme(pf);
	if (err) {
		dev_err(dev, "Cannot restore interrupt scheme: %d\n",
			err);
	}

	clear_bit(__I40E_DOWN, pf->state);
	i40e_reset_and_rebuild(pf, false, true);

	rtnl_unlock();

	/* Clear suspended state last after everything is recovered */
	clear_bit(__I40E_SUSPENDED, pf->state);

	/* Restart the service task */
	mod_timer(&pf->service_timer,
		  round_jiffies(jiffies + pf->service_timer_period));

	return 0;
}

Project: linux
File: i40e_main.c

int i40e_set_bw_limit(struct i40e_vsi *vsi, u16 seid, u64 max_tx_rate)
{
	struct i40e_pf *pf = vsi->back;
	u64 credits = 0;
	int speed = 0;
	int ret = 0;

	speed = i40e_get_link_speed(vsi);
	if (max_tx_rate > speed) {
		dev_err(&pf->pdev->dev,
			"Invalid max tx rate %llu specified for VSI seid %d.",
			max_tx_rate, seid);
		return -EINVAL;
	}
	if (max_tx_rate && max_tx_rate < 50) {
		dev_warn(&pf->pdev->dev,
			 "Setting max tx rate to minimum usable value of 50Mbps.\n");
		max_tx_rate = 50;
	}

	/* Tx rate credits are in values of 50Mbps, 0 is disabled */
	credits = max_tx_rate;
	do_div(credits, I40E_BW_CREDIT_DIVISOR);
	ret = i40e_aq_config_vsi_bw_limit(&pf->hw, seid, credits,
					  I40E_MAX_BW_INACTIVE_ACCUM, NULL);
	if (ret)
		dev_err(&pf->pdev->dev,
			"Failed set tx rate (%llu Mbps) for vsi->seid %u, err %s aq_err %s\n",
			max_tx_rate, seid, i40e_stat_str(&pf->hw, ret),
			i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_vsi_setup_tx_resources(struct i40e_vsi *vsi)
{
	int i, err = 0;

	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
		err = i40e_setup_tx_descriptors(vsi->tx_rings[i]);

	if (!i40e_enabled_xdp_vsi(vsi))
		return err;

	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
		err = i40e_setup_tx_descriptors(vsi->xdp_rings[i]);

	return err;
}

Project: linux
File: i40e_main.c

static int i40e_get_rss_aq(struct i40e_vsi *vsi, const u8 *seed,
			   u8 *lut, u16 lut_size)
{
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	int ret = 0;

	if (seed) {
		ret = i40e_aq_get_rss_key(hw, vsi->id,
			(struct i40e_aqc_get_set_rss_key_data *)seed);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Cannot get RSS key, err %s aq_err %s\n",
				 i40e_stat_str(&pf->hw, ret),
				 i40e_aq_str(&pf->hw,
					     pf->hw.aq.asq_last_status));
			return ret;
		}
	}

	if (lut) {
		bool pf_lut = vsi->type == I40E_VSI_MAIN ? true : false;

		ret = i40e_aq_get_rss_lut(hw, vsi->id, pf_lut, lut, lut_size);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Cannot get RSS lut, err %s aq_err %s\n",
				 i40e_stat_str(&pf->hw, ret),
				 i40e_aq_str(&pf->hw,
					     pf->hw.aq.asq_last_status));
			return ret;
		}
	}

	return ret;
}

Project: linux
File: i40e_main.c

static void i40e_print_features(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	char *buf;
	int i;

	buf = kmalloc(INFO_STRING_LEN, GFP_KERNEL);
	if (!buf)
		return;

	i = snprintf(buf, INFO_STRING_LEN, "Features: PF-id[%d]", hw->pf_id);
#ifdef CONFIG_PCI_IOV
	i += snprintf(&buf[i], REMAIN(i), " VFs: %d", pf->num_req_vfs);
#endif
	i += snprintf(&buf[i], REMAIN(i), " VSIs: %d QP: %d",
		      pf->hw.func_caps.num_vsis,
		      pf->vsi[pf->lan_vsi]->num_queue_pairs);
	if (pf->flags & I40E_FLAG_RSS_ENABLED)
		i += snprintf(&buf[i], REMAIN(i), " RSS");
	if (pf->flags & I40E_FLAG_FD_ATR_ENABLED)
		i += snprintf(&buf[i], REMAIN(i), " FD_ATR");
	if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
		i += snprintf(&buf[i], REMAIN(i), " FD_SB");
		i += snprintf(&buf[i], REMAIN(i), " NTUPLE");
	}
	if (pf->flags & I40E_FLAG_DCB_CAPABLE)
		i += snprintf(&buf[i], REMAIN(i), " DCB");
	i += snprintf(&buf[i], REMAIN(i), " VxLAN");
	i += snprintf(&buf[i], REMAIN(i), " Geneve");
	if (pf->flags & I40E_FLAG_PTP)
		i += snprintf(&buf[i], REMAIN(i), " PTP");
	if (pf->flags & I40E_FLAG_VEB_MODE_ENABLED)
		i += snprintf(&buf[i], REMAIN(i), " VEB");
	else
		i += snprintf(&buf[i], REMAIN(i), " VEPA");

	dev_info(&pf->pdev->dev, "%s\n", buf);
	kfree(buf);
	WARN_ON(i > INFO_STRING_LEN);
}

Project: linux
File: i40e_main.c

static void i40e_get_netdev_stats_struct(struct net_device *netdev,
				  struct rtnl_link_stats64 *stats)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct rtnl_link_stats64 *vsi_stats = i40e_get_vsi_stats_struct(vsi);
	struct i40e_ring *ring;
	int i;

	if (test_bit(__I40E_VSI_DOWN, vsi->state))
		return;

	if (!vsi->tx_rings)
		return;

	rcu_read_lock();
	for (i = 0; i < vsi->num_queue_pairs; i++) {
		u64 bytes, packets;
		unsigned int start;

		ring = READ_ONCE(vsi->tx_rings[i]);
		if (!ring)
			continue;
		i40e_get_netdev_stats_struct_tx(ring, stats);

		if (i40e_enabled_xdp_vsi(vsi)) {
			ring++;
			i40e_get_netdev_stats_struct_tx(ring, stats);
		}

		ring++;
		do {
			start   = u64_stats_fetch_begin_irq(&ring->syncp);
			packets = ring->stats.packets;
			bytes   = ring->stats.bytes;
		} while (u64_stats_fetch_retry_irq(&ring->syncp, start));

		stats->rx_packets += packets;
		stats->rx_bytes   += bytes;

	}
	rcu_read_unlock();

	/* following stats updated by i40e_watchdog_subtask() */
	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;
}

Project: linux
File: i40e_main.c

static int i40e_resume_port_tx(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	int ret;

	ret = i40e_aq_resume_port_tx(hw, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "Resume Port Tx failed, err %s aq_err %s\n",
			  i40e_stat_str(&pf->hw, ret),
			  i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
		/* Schedule PF reset to recover */
		set_bit(__I40E_PF_RESET_REQUESTED, pf->state);
		i40e_service_event_schedule(pf);
	}

	return ret;
}

Project: linux
File: i40e_main.c

void i40e_pf_reset_stats(struct i40e_pf *pf)
{
	int i;

	memset(&pf->stats, 0, sizeof(pf->stats));
	memset(&pf->stats_offsets, 0, sizeof(pf->stats_offsets));
	pf->stat_offsets_loaded = false;

	for (i = 0; i < I40E_MAX_VEB; i++) {
		if (pf->veb[i]) {
			memset(&pf->veb[i]->stats, 0,
			       sizeof(pf->veb[i]->stats));
			memset(&pf->veb[i]->stats_offsets, 0,
			       sizeof(pf->veb[i]->stats_offsets));
			memset(&pf->veb[i]->tc_stats, 0,
			       sizeof(pf->veb[i]->tc_stats));
			memset(&pf->veb[i]->tc_stats_offsets, 0,
			       sizeof(pf->veb[i]->tc_stats_offsets));
			pf->veb[i]->stat_offsets_loaded = false;
		}
	}
	pf->hw_csum_rx_error = 0;
}

Project: linux
File: i40e_main.c

void i40e_update_eth_stats(struct i40e_vsi *vsi)
{
	int stat_idx = le16_to_cpu(vsi->info.stat_counter_idx);
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_eth_stats *oes;
	struct i40e_eth_stats *es;     /* device's eth stats */

	es = &vsi->eth_stats;
	oes = &vsi->eth_stats_offsets;

	/* Gather up the stats that the hw collects */
	i40e_stat_update32(hw, I40E_GLV_TEPC(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->tx_errors, &es->tx_errors);
	i40e_stat_update32(hw, I40E_GLV_RDPC(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_discards, &es->rx_discards);
	i40e_stat_update32(hw, I40E_GLV_RUPP(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_unknown_protocol, &es->rx_unknown_protocol);

	i40e_stat_update48(hw, I40E_GLV_GORCH(stat_idx),
			   I40E_GLV_GORCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_bytes, &es->rx_bytes);
	i40e_stat_update48(hw, I40E_GLV_UPRCH(stat_idx),
			   I40E_GLV_UPRCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_unicast, &es->rx_unicast);
	i40e_stat_update48(hw, I40E_GLV_MPRCH(stat_idx),
			   I40E_GLV_MPRCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_multicast, &es->rx_multicast);
	i40e_stat_update48(hw, I40E_GLV_BPRCH(stat_idx),
			   I40E_GLV_BPRCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->rx_broadcast, &es->rx_broadcast);

	i40e_stat_update48(hw, I40E_GLV_GOTCH(stat_idx),
			   I40E_GLV_GOTCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->tx_bytes, &es->tx_bytes);
	i40e_stat_update48(hw, I40E_GLV_UPTCH(stat_idx),
			   I40E_GLV_UPTCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->tx_unicast, &es->tx_unicast);
	i40e_stat_update48(hw, I40E_GLV_MPTCH(stat_idx),
			   I40E_GLV_MPTCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->tx_multicast, &es->tx_multicast);
	i40e_stat_update48(hw, I40E_GLV_BPTCH(stat_idx),
			   I40E_GLV_BPTCL(stat_idx),
			   vsi->stat_offsets_loaded,
			   &oes->tx_broadcast, &es->tx_broadcast);
	vsi->stat_offsets_loaded = true;
}

Project: linux
File: i40e_main.c

static int i40e_channel_config_tx_ring(struct i40e_pf *pf,
				       struct i40e_vsi *vsi,
				       struct i40e_channel *ch)
{
	i40e_status ret;
	int i;
	u8 bw_share[I40E_MAX_TRAFFIC_CLASS] = {0};

	/* Enable ETS TCs with equal BW Share for now across all VSIs */
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		if (ch->enabled_tc & BIT(i))
			bw_share[i] = 1;
	}

	/* configure BW for new VSI */
	ret = i40e_channel_config_bw(vsi, ch, bw_share);
	if (ret) {
		dev_info(&vsi->back->pdev->dev,
			 "Failed configuring TC map %d for channel (seid %u)\n",
			 ch->enabled_tc, ch->seid);
		return ret;
	}

	for (i = 0; i < ch->num_queue_pairs; i++) {
		struct i40e_ring *tx_ring, *rx_ring;
		u16 pf_q;

		pf_q = ch->base_queue + i;

		/* Get to TX ring ptr of main VSI, for re-setup TX queue
		 * context
		 */
		tx_ring = vsi->tx_rings[pf_q];
		tx_ring->ch = ch;

		/* Get the RX ring ptr */
		rx_ring = vsi->rx_rings[pf_q];
		rx_ring->ch = ch;
	}

	return 0;
}

Project: linux
File: i40e_main.c

static bool i40e_setup_channel(struct i40e_pf *pf, struct i40e_vsi *vsi,
			       struct i40e_channel *ch)
{
	u8 vsi_type;
	u16 seid;
	int ret;

	if (vsi->type == I40E_VSI_MAIN) {
		vsi_type = I40E_VSI_VMDQ2;
	} else {
		dev_err(&pf->pdev->dev, "unsupported parent vsi type(%d)\n",
			vsi->type);
		return false;
	}

	/* underlying switching element */
	seid = pf->vsi[pf->lan_vsi]->uplink_seid;

	/* create channel (VSI), configure TX rings */
	ret = i40e_setup_hw_channel(pf, vsi, ch, seid, vsi_type);
	if (ret) {
		dev_err(&pf->pdev->dev, "failed to setup hw_channel\n");
		return false;
	}

	return ch->initialized ? true : false;
}

Project: linux
File: i40e_main.c

static void i40e_pci_error_reset_done(struct pci_dev *pdev)
{
	struct i40e_pf *pf = pci_get_drvdata(pdev);

	i40e_reset_and_rebuild(pf, false, false);
}

Project: linux
File: i40e_main.c

int i40e_count_filters(struct i40e_vsi *vsi)
{
	struct i40e_mac_filter *f;
	struct hlist_node *h;
	int bkt;
	int cnt = 0;

	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
		++cnt;

	return cnt;
}

Project: linux
File: i40e_main.c

static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
{
	struct i40e_ring *tx_ring, *rx_ring;
	u16 qoffset, qcount;
	int i, n;

	if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
		/* Reset the TC information */
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			rx_ring = vsi->rx_rings[i];
			tx_ring = vsi->tx_rings[i];
			rx_ring->dcb_tc = 0;
			tx_ring->dcb_tc = 0;
		}
		return;
	}

	for (n = 0; n < I40E_MAX_TRAFFIC_CLASS; n++) {
		if (!(vsi->tc_config.enabled_tc & BIT_ULL(n)))
			continue;

		qoffset = vsi->tc_config.tc_info[n].qoffset;
		qcount = vsi->tc_config.tc_info[n].qcount;
		for (i = qoffset; i < (qoffset + qcount); i++) {
			rx_ring = vsi->rx_rings[i];
			tx_ring = vsi->tx_rings[i];
			rx_ring->dcb_tc = n;
			tx_ring->dcb_tc = n;
		}
	}
}

Project: linux
File: i40e_main.c

static struct i40e_mac_filter *i40e_find_filter(struct i40e_vsi *vsi,
						const u8 *macaddr, s16 vlan)
{
	struct i40e_mac_filter *f;
	u64 key;

	if (!vsi || !macaddr)
		return NULL;

	key = i40e_addr_to_hkey(macaddr);
	hash_for_each_possible(vsi->mac_filter_hash, f, hlist, key) {
		if ((ether_addr_equal(macaddr, f->macaddr)) &&
		    (vlan == f->vlan))
			return f;
	}
	return NULL;
}

Project: linux
File: i40e_main.c

struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
				u16 uplink_seid, u16 vsi_seid,
				u8 enabled_tc)
{
	struct i40e_veb *veb, *uplink_veb = NULL;
	int vsi_idx, veb_idx;
	int ret;

	/* if one seid is 0, the other must be 0 to create a floating relay */
	if ((uplink_seid == 0 || vsi_seid == 0) &&
	    (uplink_seid + vsi_seid != 0)) {
		dev_info(&pf->pdev->dev,
			 "one, not both seid's are 0: uplink=%d vsi=%d\n",
			 uplink_seid, vsi_seid);
		return NULL;
	}

	/* make sure there is such a vsi and uplink */
	for (vsi_idx = 0; vsi_idx < pf->num_alloc_vsi; vsi_idx++)
		if (pf->vsi[vsi_idx] && pf->vsi[vsi_idx]->seid == vsi_seid)
			break;
	if (vsi_idx == pf->num_alloc_vsi && vsi_seid != 0) {
		dev_info(&pf->pdev->dev, "vsi seid %d not found\n",
			 vsi_seid);
		return NULL;
	}

	if (uplink_seid && uplink_seid != pf->mac_seid) {
		for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
			if (pf->veb[veb_idx] &&
			    pf->veb[veb_idx]->seid == uplink_seid) {
				uplink_veb = pf->veb[veb_idx];
				break;
			}
		}
		if (!uplink_veb) {
			dev_info(&pf->pdev->dev,
				 "uplink seid %d not found\n", uplink_seid);
			return NULL;
		}
	}

	/* get veb sw struct */
	veb_idx = i40e_veb_mem_alloc(pf);
	if (veb_idx < 0)
		goto err_alloc;
	veb = pf->veb[veb_idx];
	veb->flags = flags;
	veb->uplink_seid = uplink_seid;
	veb->veb_idx = (uplink_veb ? uplink_veb->idx : I40E_NO_VEB);
	veb->enabled_tc = (enabled_tc ? enabled_tc : 0x1);

	/* create the VEB in the switch */
	ret = i40e_add_veb(veb, pf->vsi[vsi_idx]);
	if (ret)
		goto err_veb;
	if (vsi_idx == pf->lan_vsi)
		pf->lan_veb = veb->idx;

	return veb;

err_veb:
	i40e_veb_clear(veb);
err_alloc:
	return NULL;
}

Project: linux
File: i40e_main.c

static void i40e_handle_reset_warning(struct i40e_pf *pf, bool lock_acquired)
{
	i40e_prep_for_reset(pf, lock_acquired);
	i40e_reset_and_rebuild(pf, false, lock_acquired);
}

Project: linux
File: i40e_main.c

static bool i40e_is_any_channel(struct i40e_vsi *vsi)
{
	struct i40e_channel *ch, *ch_tmp;

	list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) {
		if (ch->initialized)
			return true;
	}

	return false;
}

Project: linux
File: i40e_main.c

static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
				   struct net_device *dev,
				   u32 __always_unused filter_mask,
				   int nlflags)
{
	struct i40e_netdev_priv *np = netdev_priv(dev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_veb *veb = NULL;
	int i;

	/* Only for PF VSI for now */
	if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
		return -EOPNOTSUPP;

	/* Find the HW bridge for the PF VSI */
	for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
		if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
			veb = pf->veb[i];
	}

	if (!veb)
		return 0;

	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
				       0, 0, nlflags, filter_mask, NULL);
}

Project: linux
File: i40e_main.c

int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc)
{
	struct i40e_aqc_configure_switching_comp_bw_config_data bw_data = {0};
	struct i40e_pf *pf = veb->pf;
	int ret = 0;
	int i;

	/* No TCs or already enabled TCs just return */
	if (!enabled_tc || veb->enabled_tc == enabled_tc)
		return ret;

	bw_data.tc_valid_bits = enabled_tc;
	/* bw_data.absolute_credits is not set (relative) */

	/* Enable ETS TCs with equal BW Share for now */
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		if (enabled_tc & BIT(i))
			bw_data.tc_bw_share_credits[i] = 1;
	}

	ret = i40e_aq_config_switch_comp_bw_config(&pf->hw, veb->seid,
						   &bw_data, NULL);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "VEB bw config failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
		goto out;
	}

	/* Update the BW information */
	ret = i40e_veb_get_bw_info(veb);
	if (ret) {
		dev_info(&pf->pdev->dev,
			 "Failed getting veb bw config, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, ret),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
	}

out:
	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_get_max_queues_for_channel(struct i40e_vsi *vsi)
{
	struct i40e_channel *ch, *ch_tmp;
	int max = 0;

	list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) {
		if (!ch->initialized)
			continue;
		if (ch->num_queue_pairs > max)
			max = ch->num_queue_pairs;
	}

	return max;
}

Project: linux
File: i40e_main.c

static void i40e_sync_udp_filters_subtask(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	u8 filter_index, type;
	u16 port;
	int i;

	if (!test_and_clear_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state))
		return;

	/* acquire RTNL to maintain state of flags and port requests */
	rtnl_lock();

	for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
		if (pf->pending_udp_bitmap & BIT_ULL(i)) {
			struct i40e_udp_port_config *udp_port;
			i40e_status ret = 0;

			udp_port = &pf->udp_ports[i];
			pf->pending_udp_bitmap &= ~BIT_ULL(i);

			port = READ_ONCE(udp_port->port);
			type = READ_ONCE(udp_port->type);
			filter_index = READ_ONCE(udp_port->filter_index);

			/* release RTNL while we wait on AQ command */
			rtnl_unlock();

			if (port)
				ret = i40e_aq_add_udp_tunnel(hw, port,
							     type,
							     &filter_index,
							     NULL);
			else if (filter_index != I40E_UDP_PORT_INDEX_UNUSED)
				ret = i40e_aq_del_udp_tunnel(hw, filter_index,
							     NULL);

			/* reacquire RTNL so we can update filter_index */
			rtnl_lock();

			if (ret) {
				dev_info(&pf->pdev->dev,
					 "%s %s port %d, index %d failed, err %s aq_err %s\n",
					 i40e_tunnel_name(type),
					 port ? "add" : "delete",
					 port,
					 filter_index,
					 i40e_stat_str(&pf->hw, ret),
					 i40e_aq_str(&pf->hw,
						     pf->hw.aq.asq_last_status));
				if (port) {
					/* failed to add, just reset port,
					 * drop pending bit for any deletion
					 */
					udp_port->port = 0;
					pf->pending_udp_bitmap &= ~BIT_ULL(i);
				}
			} else if (port) {
				/* record filter index on success */
				udp_port->filter_index = filter_index;
			}
		}
	}

	rtnl_unlock();
}

Project: linux
File: i40e_main.c

static void i40e_napi_enable_all(struct i40e_vsi *vsi)
{
	int q_idx;

	if (!vsi->netdev)
		return;

	for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) {
		struct i40e_q_vector *q_vector = vsi->q_vectors[q_idx];

		if (q_vector->rx.ring || q_vector->tx.ring)
			napi_enable(&q_vector->napi);
	}
}

Project: linux
File: i40e_main.c

static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi *vsi)
{
	int qp_remaining = vsi->num_queue_pairs;
	int q_vectors = vsi->num_q_vectors;
	int num_ringpairs;
	int v_start = 0;
	int qp_idx = 0;

	/* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
	 * group them so there are multiple queues per vector.
	 * It is also important to go through all the vectors available to be
	 * sure that if we don't use all the vectors, that the remaining vectors
	 * are cleared. This is especially important when decreasing the
	 * number of queues in use.
	 */
	for (; v_start < q_vectors; v_start++) {
		struct i40e_q_vector *q_vector = vsi->q_vectors[v_start];

		num_ringpairs = DIV_ROUND_UP(qp_remaining, q_vectors - v_start);

		q_vector->num_ringpairs = num_ringpairs;
		q_vector->reg_idx = q_vector->v_idx + vsi->base_vector - 1;

		q_vector->rx.count = 0;
		q_vector->tx.count = 0;
		q_vector->rx.ring = NULL;
		q_vector->tx.ring = NULL;

		while (num_ringpairs--) {
			i40e_map_vector_to_qp(vsi, v_start, qp_idx);
			qp_idx++;
			qp_remaining--;
		}
	}
}

Project: linux
File: i40e_main.c

void i40e_update_veb_stats(struct i40e_veb *veb)
{
	struct i40e_pf *pf = veb->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_eth_stats *oes;
	struct i40e_eth_stats *es;     /* device's eth stats */
	struct i40e_veb_tc_stats *veb_oes;
	struct i40e_veb_tc_stats *veb_es;
	int i, idx = 0;

	idx = veb->stats_idx;
	es = &veb->stats;
	oes = &veb->stats_offsets;
	veb_es = &veb->tc_stats;
	veb_oes = &veb->tc_stats_offsets;

	/* Gather up the stats that the hw collects */
	i40e_stat_update32(hw, I40E_GLSW_TDPC(idx),
			   veb->stat_offsets_loaded,
			   &oes->tx_discards, &es->tx_discards);
	if (hw->revision_id > 0)
		i40e_stat_update32(hw, I40E_GLSW_RUPP(idx),
				   veb->stat_offsets_loaded,
				   &oes->rx_unknown_protocol,
				   &es->rx_unknown_protocol);
	i40e_stat_update48(hw, I40E_GLSW_GORCH(idx), I40E_GLSW_GORCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->rx_bytes, &es->rx_bytes);
	i40e_stat_update48(hw, I40E_GLSW_UPRCH(idx), I40E_GLSW_UPRCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->rx_unicast, &es->rx_unicast);
	i40e_stat_update48(hw, I40E_GLSW_MPRCH(idx), I40E_GLSW_MPRCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->rx_multicast, &es->rx_multicast);
	i40e_stat_update48(hw, I40E_GLSW_BPRCH(idx), I40E_GLSW_BPRCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->rx_broadcast, &es->rx_broadcast);

	i40e_stat_update48(hw, I40E_GLSW_GOTCH(idx), I40E_GLSW_GOTCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->tx_bytes, &es->tx_bytes);
	i40e_stat_update48(hw, I40E_GLSW_UPTCH(idx), I40E_GLSW_UPTCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->tx_unicast, &es->tx_unicast);
	i40e_stat_update48(hw, I40E_GLSW_MPTCH(idx), I40E_GLSW_MPTCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->tx_multicast, &es->tx_multicast);
	i40e_stat_update48(hw, I40E_GLSW_BPTCH(idx), I40E_GLSW_BPTCL(idx),
			   veb->stat_offsets_loaded,
			   &oes->tx_broadcast, &es->tx_broadcast);
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		i40e_stat_update48(hw, I40E_GLVEBTC_RPCH(i, idx),
				   I40E_GLVEBTC_RPCL(i, idx),
				   veb->stat_offsets_loaded,
				   &veb_oes->tc_rx_packets[i],
				   &veb_es->tc_rx_packets[i]);
		i40e_stat_update48(hw, I40E_GLVEBTC_RBCH(i, idx),
				   I40E_GLVEBTC_RBCL(i, idx),
				   veb->stat_offsets_loaded,
				   &veb_oes->tc_rx_bytes[i],
				   &veb_es->tc_rx_bytes[i]);
		i40e_stat_update48(hw, I40E_GLVEBTC_TPCH(i, idx),
				   I40E_GLVEBTC_TPCL(i, idx),
				   veb->stat_offsets_loaded,
				   &veb_oes->tc_tx_packets[i],
				   &veb_es->tc_tx_packets[i]);
		i40e_stat_update48(hw, I40E_GLVEBTC_TBCH(i, idx),
				   I40E_GLVEBTC_TBCL(i, idx),
				   veb->stat_offsets_loaded,
				   &veb_oes->tc_tx_bytes[i],
				   &veb_es->tc_tx_bytes[i]);
	}
	veb->stat_offsets_loaded = true;
}

Project: linux
File: i40e_main.c

static int i40e_config_rss_reg(struct i40e_vsi *vsi, const u8 *seed,
			       const u8 *lut, u16 lut_size)
{
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u16 vf_id = vsi->vf_id;
	u8 i;

	/* Fill out hash function seed */
	if (seed) {
		u32 *seed_dw = (u32 *)seed;

		if (vsi->type == I40E_VSI_MAIN) {
			for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++)
				wr32(hw, I40E_PFQF_HKEY(i), seed_dw[i]);
		} else if (vsi->type == I40E_VSI_SRIOV) {
			for (i = 0; i <= I40E_VFQF_HKEY1_MAX_INDEX; i++)
				wr32(hw, I40E_VFQF_HKEY1(i, vf_id), seed_dw[i]);
		} else {
			dev_err(&pf->pdev->dev, "Cannot set RSS seed - invalid VSI type\n");
		}
	}

	if (lut) {
		u32 *lut_dw = (u32 *)lut;

		if (vsi->type == I40E_VSI_MAIN) {
			if (lut_size != I40E_HLUT_ARRAY_SIZE)
				return -EINVAL;
			for (i = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++)
				wr32(hw, I40E_PFQF_HLUT(i), lut_dw[i]);
		} else if (vsi->type == I40E_VSI_SRIOV) {
			if (lut_size != I40E_VF_HLUT_ARRAY_SIZE)
				return -EINVAL;
			for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++)
				wr32(hw, I40E_VFQF_HLUT1(i, vf_id), lut_dw[i]);
		} else {
			dev_err(&pf->pdev->dev, "Cannot set RSS LUT - invalid VSI type\n");
		}
	}
	i40e_flush(hw);

	return 0;
}

Project: linux
File: i40e_main.c

static u8 i40e_mqprio_get_enabled_tc(struct i40e_pf *pf)
{
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
	u8 num_tc = vsi->mqprio_qopt.qopt.num_tc;
	u8 enabled_tc = 1, i;

	for (i = 1; i < num_tc; i++)
		enabled_tc |= BIT(i);
	return enabled_tc;
}

Project: linux
File: i40e_main.c

static void i40e_shutdown(struct pci_dev *pdev)
{
	struct i40e_pf *pf = pci_get_drvdata(pdev);
	struct i40e_hw *hw = &pf->hw;

	set_bit(__I40E_SUSPENDED, pf->state);
	set_bit(__I40E_DOWN, pf->state);

	del_timer_sync(&pf->service_timer);
	cancel_work_sync(&pf->service_task);
	i40e_cloud_filter_exit(pf);
	i40e_fdir_teardown(pf);

	/* Client close must be called explicitly here because the timer
	 * has been stopped.
	 */
	i40e_notify_client_of_netdev_close(pf->vsi[pf->lan_vsi], false);

	if (pf->wol_en && (pf->hw_features & I40E_HW_WOL_MC_MAGIC_PKT_WAKE))
		i40e_enable_mc_magic_wake(pf);

	i40e_prep_for_reset(pf, false);

	wr32(hw, I40E_PFPM_APM,
	     (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
	wr32(hw, I40E_PFPM_WUFC,
	     (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));

	/* Free MSI/legacy interrupt 0 when in recovery mode. */
	if (test_bit(__I40E_RECOVERY_MODE, pf->state) &&
	    !(pf->flags & I40E_FLAG_MSIX_ENABLED))
		free_irq(pf->pdev->irq, pf);

	/* Since we're going to destroy queues during the
	 * i40e_clear_interrupt_scheme() we should hold the RTNL lock for this
	 * whole section
	 */
	rtnl_lock();
	i40e_clear_interrupt_scheme(pf);
	rtnl_unlock();

	if (system_state == SYSTEM_POWER_OFF) {
		pci_wake_from_d3(pdev, pf->wol_en);
		pci_set_power_state(pdev, PCI_D3hot);
	}
}

Project: linux
File: i40e_main.c

static void i40e_veb_link_event(struct i40e_veb *veb, bool link_up)
{
	struct i40e_pf *pf;
	int i;

	if (!veb || !veb->pf)
		return;
	pf = veb->pf;

	/* depth first... */
	for (i = 0; i < I40E_MAX_VEB; i++)
		if (pf->veb[i] && (pf->veb[i]->uplink_seid == veb->seid))
			i40e_veb_link_event(pf->veb[i], link_up);

	/* ... now the local VSIs */
	for (i = 0; i < pf->num_alloc_vsi; i++)
		if (pf->vsi[i] && (pf->vsi[i]->uplink_seid == veb->seid))
			i40e_vsi_link_event(pf->vsi[i], link_up);
}

Project: linux
File: i40e_main.c

u32 i40e_get_current_fd_count(struct i40e_pf *pf)
{
	u32 val, fcnt_prog;

	val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
	fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) +
		    ((val & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
		      I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
	return fcnt_prog;
}

Project: linux
File: i40e_main.c

static void i40e_dcb_reconfigure(struct i40e_pf *pf)
{
	u8 tc_map = 0;
	int ret;
	u8 v;

	/* Enable the TCs available on PF to all VEBs */
	tc_map = i40e_pf_get_tc_map(pf);
	for (v = 0; v < I40E_MAX_VEB; v++) {
		if (!pf->veb[v])
			continue;
		ret = i40e_veb_config_tc(pf->veb[v], tc_map);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Failed configuring TC for VEB seid=%d\n",
				 pf->veb[v]->seid);
			/* Will try to configure as many components */
		}
	}

	/* Update each VSI */
	for (v = 0; v < pf->num_alloc_vsi; v++) {
		if (!pf->vsi[v])
			continue;

		/* - Enable all TCs for the LAN VSI
		 * - For all others keep them at TC0 for now
		 */
		if (v == pf->lan_vsi)
			tc_map = i40e_pf_get_tc_map(pf);
		else
			tc_map = I40E_DEFAULT_TRAFFIC_CLASS;

		ret = i40e_vsi_config_tc(pf->vsi[v], tc_map);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Failed configuring TC for VSI seid=%d\n",
				 pf->vsi[v]->seid);
			/* Will try to configure as many components */
		} else {
			/* Re-configure VSI vectors based on updated TC map */
			i40e_vsi_map_rings_to_vectors(pf->vsi[v]);
			if (pf->vsi[v]->netdev)
				i40e_dcbnl_set_all(pf->vsi[v]);
		}
	}
}

Project: linux
File: i40e_main.c

static irqreturn_t i40e_intr(int irq, void *data)
{
	struct i40e_pf *pf = (struct i40e_pf *)data;
	struct i40e_hw *hw = &pf->hw;
	irqreturn_t ret = IRQ_NONE;
	u32 icr0, icr0_remaining;
	u32 val, ena_mask;

	icr0 = rd32(hw, I40E_PFINT_ICR0);
	ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA);

	/* if sharing a legacy IRQ, we might get called w/o an intr pending */
	if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0)
		goto enable_intr;

	/* if interrupt but no bits showing, must be SWINT */
	if (((icr0 & ~I40E_PFINT_ICR0_INTEVENT_MASK) == 0) ||
	    (icr0 & I40E_PFINT_ICR0_SWINT_MASK))
		pf->sw_int_count++;

	if ((pf->flags & I40E_FLAG_IWARP_ENABLED) &&
	    (icr0 & I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK)) {
		ena_mask &= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK;
		dev_dbg(&pf->pdev->dev, "cleared PE_CRITERR\n");
		set_bit(__I40E_CORE_RESET_REQUESTED, pf->state);
	}

	/* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
	if (icr0 & I40E_PFINT_ICR0_QUEUE_0_MASK) {
		struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
		struct i40e_q_vector *q_vector = vsi->q_vectors[0];

		/* We do not have a way to disarm Queue causes while leaving
		 * interrupt enabled for all other causes, ideally
		 * interrupt should be disabled while we are in NAPI but
		 * this is not a performance path and napi_schedule()
		 * can deal with rescheduling.
		 */
		if (!test_bit(__I40E_DOWN, pf->state))
			napi_schedule_irqoff(&q_vector->napi);
	}

	if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
		ena_mask &= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK;
		set_bit(__I40E_ADMINQ_EVENT_PENDING, pf->state);
		i40e_debug(&pf->hw, I40E_DEBUG_NVM, "AdminQ event\n");
	}

	if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) {
		ena_mask &= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK;
		set_bit(__I40E_MDD_EVENT_PENDING, pf->state);
	}

	if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) {
		ena_mask &= ~I40E_PFINT_ICR0_ENA_VFLR_MASK;
		set_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
	}

	if (icr0 & I40E_PFINT_ICR0_GRST_MASK) {
		if (!test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state))
			set_bit(__I40E_RESET_INTR_RECEIVED, pf->state);
		ena_mask &= ~I40E_PFINT_ICR0_ENA_GRST_MASK;
		val = rd32(hw, I40E_GLGEN_RSTAT);
		val = (val & I40E_GLGEN_RSTAT_RESET_TYPE_MASK)
		       >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT;
		if (val == I40E_RESET_CORER) {
			pf->corer_count++;
		} else if (val == I40E_RESET_GLOBR) {
			pf->globr_count++;
		} else if (val == I40E_RESET_EMPR) {
			pf->empr_count++;
			set_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state);
		}
	}

	if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK) {
		icr0 &= ~I40E_PFINT_ICR0_HMC_ERR_MASK;
		dev_info(&pf->pdev->dev, "HMC error interrupt\n");
		dev_info(&pf->pdev->dev, "HMC error info 0x%x, HMC error data 0x%x\n",
			 rd32(hw, I40E_PFHMC_ERRORINFO),
			 rd32(hw, I40E_PFHMC_ERRORDATA));
	}

	if (icr0 & I40E_PFINT_ICR0_TIMESYNC_MASK) {
		u32 prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_0);

		if (prttsyn_stat & I40E_PRTTSYN_STAT_0_TXTIME_MASK) {
			icr0 &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
			i40e_ptp_tx_hwtstamp(pf);
		}
	}

	/* If a critical error is pending we have no choice but to reset the
	 * device.
	 * Report and mask out any remaining unexpected interrupts.
	 */
	icr0_remaining = icr0 & ena_mask;
	if (icr0_remaining) {
		dev_info(&pf->pdev->dev, "unhandled interrupt icr0=0x%08x\n",
			 icr0_remaining);
		if ((icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) ||
		    (icr0_remaining & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) ||
		    (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK)) {
			dev_info(&pf->pdev->dev, "device will be reset\n");
			set_bit(__I40E_PF_RESET_REQUESTED, pf->state);
			i40e_service_event_schedule(pf);
		}
		ena_mask &= ~icr0_remaining;
	}
	ret = IRQ_HANDLED;

enable_intr:
	/* re-enable interrupt causes */
	wr32(hw, I40E_PFINT_ICR0_ENA, ena_mask);
	if (!test_bit(__I40E_DOWN, pf->state) ||
	    test_bit(__I40E_RECOVERY_MODE, pf->state)) {
		i40e_service_event_schedule(pf);
		i40e_irq_dynamic_enable_icr0(pf);
	}

	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
			 u16 needed, u16 id)
{
	int ret = -ENOMEM;
	int i, j;

	if (!pile || needed == 0 || id >= I40E_PILE_VALID_BIT) {
		dev_info(&pf->pdev->dev,
			 "param err: pile=%s needed=%d id=0x%04x\n",
			 pile ? "<valid>" : "<null>", needed, id);
		return -EINVAL;
	}

	/* start the linear search with an imperfect hint */
	i = pile->search_hint;
	while (i < pile->num_entries) {
		/* skip already allocated entries */
		if (pile->list[i] & I40E_PILE_VALID_BIT) {
			i++;
			continue;
		}

		/* do we have enough in this lump? */
		for (j = 0; (j < needed) && ((i+j) < pile->num_entries); j++) {
			if (pile->list[i+j] & I40E_PILE_VALID_BIT)
				break;
		}

		if (j == needed) {
			/* there was enough, so assign it to the requestor */
			for (j = 0; j < needed; j++)
				pile->list[i+j] = id | I40E_PILE_VALID_BIT;
			ret = i;
			pile->search_hint = i + j;
			break;
		}

		/* not enough, so skip over it and continue looking */
		i += j;
	}

	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
{
	int vectors = 0;
	ssize_t size;

	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
		vectors = i40e_init_msix(pf);
		if (vectors < 0) {
			pf->flags &= ~(I40E_FLAG_MSIX_ENABLED	|
				       I40E_FLAG_IWARP_ENABLED	|
				       I40E_FLAG_RSS_ENABLED	|
				       I40E_FLAG_DCB_CAPABLE	|
				       I40E_FLAG_DCB_ENABLED	|
				       I40E_FLAG_SRIOV_ENABLED	|
				       I40E_FLAG_FD_SB_ENABLED	|
				       I40E_FLAG_FD_ATR_ENABLED	|
				       I40E_FLAG_VMDQ_ENABLED);
			pf->flags |= I40E_FLAG_FD_SB_INACTIVE;

			/* rework the queue expectations without MSIX */
			i40e_determine_queue_usage(pf);
		}
	}

	if (!(pf->flags & I40E_FLAG_MSIX_ENABLED) &&
	    (pf->flags & I40E_FLAG_MSI_ENABLED)) {
		dev_info(&pf->pdev->dev, "MSI-X not available, trying MSI\n");
		vectors = pci_enable_msi(pf->pdev);
		if (vectors < 0) {
			dev_info(&pf->pdev->dev, "MSI init failed - %d\n",
				 vectors);
			pf->flags &= ~I40E_FLAG_MSI_ENABLED;
		}
		vectors = 1;  /* one MSI or Legacy vector */
	}

	if (!(pf->flags & (I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED)))
		dev_info(&pf->pdev->dev, "MSI-X and MSI not available, falling back to Legacy IRQ\n");

	/* set up vector assignment tracking */
	size = sizeof(struct i40e_lump_tracking) + (sizeof(u16) * vectors);
	pf->irq_pile = kzalloc(size, GFP_KERNEL);
	if (!pf->irq_pile)
		return -ENOMEM;

	pf->irq_pile->num_entries = vectors;
	pf->irq_pile->search_hint = 0;

	/* track first vector for misc interrupts, ignore return */
	(void)i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT - 1);

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_setup_misc_vector(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	int err = 0;

	/* Only request the IRQ once, the first time through. */
	if (!test_and_set_bit(__I40E_MISC_IRQ_REQUESTED, pf->state)) {
		err = request_irq(pf->msix_entries[0].vector,
				  i40e_intr, 0, pf->int_name, pf);
		if (err) {
			clear_bit(__I40E_MISC_IRQ_REQUESTED, pf->state);
			dev_info(&pf->pdev->dev,
				 "request_irq for %s failed: %d\n",
				 pf->int_name, err);
			return -EFAULT;
		}
	}

	i40e_enable_misc_int_causes(pf);

	/* associate no queues to the misc vector */
	wr32(hw, I40E_PFINT_LNKLST0, I40E_QUEUE_END_OF_LIST);
	wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), I40E_ITR_8K >> 1);

	i40e_flush(hw);

	i40e_irq_dynamic_enable_icr0(pf);

	return err;
}

Project: linux
File: i40e_main.c

static void i40e_stat_update_and_clear32(struct i40e_hw *hw, u32 reg, u64 *stat)
{
	u32 new_data = rd32(hw, reg);

	wr32(hw, reg, 1); /* must write a nonzero value to clear register */
	*stat += new_data;
}

Project: linux
File: i40e_main.c

static void i40e_get_platform_mac_addr(struct pci_dev *pdev, struct i40e_pf *pf)
{
	if (eth_platform_get_mac_address(&pdev->dev, pf->hw.mac.addr))
		i40e_get_mac_addr(&pf->hw, pf->hw.mac.addr);
}

Project: linux
File: i40e_main.c

static void i40e_fdir_filter_restore(struct i40e_vsi *vsi)
{
	struct i40e_fdir_filter *filter;
	struct i40e_pf *pf = vsi->back;
	struct hlist_node *node;

	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
		return;

	/* Reset FDir counters as we're replaying all existing filters */
	pf->fd_tcp4_filter_cnt = 0;
	pf->fd_udp4_filter_cnt = 0;
	pf->fd_sctp4_filter_cnt = 0;
	pf->fd_ip4_filter_cnt = 0;

	hlist_for_each_entry_safe(filter, node,
				  &pf->fdir_filter_list, fdir_node) {
		i40e_add_del_fdir(vsi, filter, true);
	}
}

Project: linux
File: i40e_main.c

bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
			    struct i40e_dcbx_config *old_cfg,
			    struct i40e_dcbx_config *new_cfg)
{
	bool need_reconfig = false;

	/* Check if ETS configuration has changed */
	if (memcmp(&new_cfg->etscfg,
		   &old_cfg->etscfg,
		   sizeof(new_cfg->etscfg))) {
		/* If Priority Table has changed reconfig is needed */
		if (memcmp(&new_cfg->etscfg.prioritytable,
			   &old_cfg->etscfg.prioritytable,
			   sizeof(new_cfg->etscfg.prioritytable))) {
			need_reconfig = true;
			dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n");
		}

		if (memcmp(&new_cfg->etscfg.tcbwtable,
			   &old_cfg->etscfg.tcbwtable,
			   sizeof(new_cfg->etscfg.tcbwtable)))
			dev_dbg(&pf->pdev->dev, "ETS TC BW Table changed.\n");

		if (memcmp(&new_cfg->etscfg.tsatable,
			   &old_cfg->etscfg.tsatable,
			   sizeof(new_cfg->etscfg.tsatable)))
			dev_dbg(&pf->pdev->dev, "ETS TSA Table changed.\n");
	}

	/* Check if PFC configuration has changed */
	if (memcmp(&new_cfg->pfc,
		   &old_cfg->pfc,
		   sizeof(new_cfg->pfc))) {
		need_reconfig = true;
		dev_dbg(&pf->pdev->dev, "PFC config change detected.\n");
	}

	/* Check if APP Table has changed */
	if (memcmp(&new_cfg->app,
		   &old_cfg->app,
		   sizeof(new_cfg->app))) {
		need_reconfig = true;
		dev_dbg(&pf->pdev->dev, "APP Table change detected.\n");
	}

	dev_dbg(&pf->pdev->dev, "dcb need_reconfig=%d\n", need_reconfig);
	return need_reconfig;
}

Project: linux
File: i40e_main.c

static const char *i40e_tunnel_name(u8 type)
{
	switch (type) {
	case UDP_TUNNEL_TYPE_VXLAN:
		return "vxlan";
	case UDP_TUNNEL_TYPE_GENEVE:
		return "geneve";
	default:
		return "unknown";
	}
}

Project: linux
File: i40e_main.c

static int i40e_pf_txq_wait(struct i40e_pf *pf, int pf_q, bool enable)
{
	int i;
	u32 tx_reg;

	for (i = 0; i < I40E_QUEUE_WAIT_RETRY_LIMIT; i++) {
		tx_reg = rd32(&pf->hw, I40E_QTX_ENA(pf_q));
		if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK))
			break;

		usleep_range(10, 20);
	}
	if (i >= I40E_QUEUE_WAIT_RETRY_LIMIT)
		return -ETIMEDOUT;

	return 0;
}

Project: linux
File: i40e_main.c

static int i40e_configure_clsflower(struct i40e_vsi *vsi,
				    struct flow_cls_offload *cls_flower)
{
	int tc = tc_classid_to_hwtc(vsi->netdev, cls_flower->classid);
	struct i40e_cloud_filter *filter = NULL;
	struct i40e_pf *pf = vsi->back;
	int err = 0;

	if (tc < 0) {
		dev_err(&vsi->back->pdev->dev, "Invalid traffic class\n");
		return -EOPNOTSUPP;
	}

	if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
	    test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
		return -EBUSY;

	if (pf->fdir_pf_active_filters ||
	    (!hlist_empty(&pf->fdir_filter_list))) {
		dev_err(&vsi->back->pdev->dev,
			"Flow Director Sideband filters exists, turn ntuple off to configure cloud filters\n");
		return -EINVAL;
	}

	if (vsi->back->flags & I40E_FLAG_FD_SB_ENABLED) {
		dev_err(&vsi->back->pdev->dev,
			"Disable Flow Director Sideband, configuring Cloud filters via tc-flower\n");
		vsi->back->flags &= ~I40E_FLAG_FD_SB_ENABLED;
		vsi->back->flags |= I40E_FLAG_FD_SB_TO_CLOUD_FILTER;
	}

	filter = kzalloc(sizeof(*filter), GFP_KERNEL);
	if (!filter)
		return -ENOMEM;

	filter->cookie = cls_flower->cookie;

	err = i40e_parse_cls_flower(vsi, cls_flower, filter);
	if (err < 0)
		goto err;

	err = i40e_handle_tclass(vsi, tc, filter);
	if (err < 0)
		goto err;

	/* Add cloud filter */
	if (filter->dst_port)
		err = i40e_add_del_cloud_filter_big_buf(vsi, filter, true);
	else
		err = i40e_add_del_cloud_filter(vsi, filter, true);

	if (err) {
		dev_err(&pf->pdev->dev,
			"Failed to add cloud filter, err %s\n",
			i40e_stat_str(&pf->hw, err));
		goto err;
	}

	/* add filter to the ordered list */
	INIT_HLIST_NODE(&filter->cloud_node);

	hlist_add_head(&filter->cloud_node, &pf->cloud_filter_list);

	pf->num_cloud_filters++;

	return err;
err:
	kfree(filter);
	return err;
}

Project: linux
File: i40e_main.c

static int i40e_xdp_setup(struct i40e_vsi *vsi,
			  struct bpf_prog *prog)
{
	int frame_size = vsi->netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
	struct i40e_pf *pf = vsi->back;
	struct bpf_prog *old_prog;
	bool need_reset;
	int i;

	/* Don't allow frames that span over multiple buffers */
	if (frame_size > vsi->rx_buf_len)
		return -EINVAL;

	if (!i40e_enabled_xdp_vsi(vsi) && !prog)
		return 0;

	/* When turning XDP on->off/off->on we reset and rebuild the rings. */
	need_reset = (i40e_enabled_xdp_vsi(vsi) != !!prog);

	if (need_reset)
		i40e_prep_for_reset(pf, true);

	old_prog = xchg(&vsi->xdp_prog, prog);

	if (need_reset)
		i40e_reset_and_rebuild(pf, true, true);

	for (i = 0; i < vsi->num_queue_pairs; i++)
		WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog);

	if (old_prog)
		bpf_prog_put(old_prog);

	/* Kick start the NAPI context if there is an AF_XDP socket open
	 * on that queue id. This so that receiving will start.
	 */
	if (need_reset && prog)
		for (i = 0; i < vsi->num_queue_pairs; i++)
			if (vsi->xdp_rings[i]->xsk_umem)
				(void)i40e_xsk_wakeup(vsi->netdev, i,
						      XDP_WAKEUP_RX);

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_clear_rss_config_user(struct i40e_vsi *vsi)
{
	if (!vsi)
		return;

	kfree(vsi->rss_hkey_user);
	vsi->rss_hkey_user = NULL;

	kfree(vsi->rss_lut_user);
	vsi->rss_lut_user = NULL;
}

Project: linux
File: i40e_main.c

static int i40e_validate_and_set_switch_mode(struct i40e_vsi *vsi)
{
	u8 mode;
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	int ret;

	ret = i40e_get_capabilities(pf, i40e_aqc_opc_list_dev_capabilities);
	if (ret)
		return -EINVAL;

	if (hw->dev_caps.switch_mode) {
		/* if switch mode is set, support mode2 (non-tunneled for
		 * cloud filter) for now
		 */
		u32 switch_mode = hw->dev_caps.switch_mode &
				  I40E_SWITCH_MODE_MASK;
		if (switch_mode >= I40E_CLOUD_FILTER_MODE1) {
			if (switch_mode == I40E_CLOUD_FILTER_MODE2)
				return 0;
			dev_err(&pf->pdev->dev,
				"Invalid switch_mode (%d), only non-tunneled mode for cloud filter is supported\n",
				hw->dev_caps.switch_mode);
			return -EINVAL;
		}
	}

	/* Set Bit 7 to be valid */
	mode = I40E_AQ_SET_SWITCH_BIT7_VALID;

	/* Set L4type for TCP support */
	mode |= I40E_AQ_SET_SWITCH_L4_TYPE_TCP;

	/* Set cloud filter mode */
	mode |= I40E_AQ_SET_SWITCH_MODE_NON_TUNNEL;

	/* Prep mode field for set_switch_config */
	ret = i40e_aq_set_switch_config(hw, pf->last_sw_conf_flags,
					pf->last_sw_conf_valid_flags,
					mode, NULL);
	if (ret && hw->aq.asq_last_status != I40E_AQ_RC_ESRCH)
		dev_err(&pf->pdev->dev,
			"couldn't set switch config bits, err %s aq_err %s\n",
			i40e_stat_str(hw, ret),
			i40e_aq_str(hw,
				    hw->aq.asq_last_status));

	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
				 struct flow_cls_offload *f,
				 struct i40e_cloud_filter *filter)
{
	struct flow_rule *rule = flow_cls_offload_flow_rule(f);
	struct flow_dissector *dissector = rule->match.dissector;
	u16 n_proto_mask = 0, n_proto_key = 0, addr_type = 0;
	struct i40e_pf *pf = vsi->back;
	u8 field_flags = 0;

	if (dissector->used_keys &
	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_VLAN) |
	      BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_PORTS) |
	      BIT(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
		dev_err(&pf->pdev->dev, "Unsupported key used: 0x%x\n",
			dissector->used_keys);
		return -EOPNOTSUPP;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
		struct flow_match_enc_keyid match;

		flow_rule_match_enc_keyid(rule, &match);
		if (match.mask->keyid != 0)
			field_flags |= I40E_CLOUD_FIELD_TEN_ID;

		filter->tenant_id = be32_to_cpu(match.key->keyid);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
		struct flow_match_basic match;

		flow_rule_match_basic(rule, &match);
		n_proto_key = ntohs(match.key->n_proto);
		n_proto_mask = ntohs(match.mask->n_proto);

		if (n_proto_key == ETH_P_ALL) {
			n_proto_key = 0;
			n_proto_mask = 0;
		}
		filter->n_proto = n_proto_key & n_proto_mask;
		filter->ip_proto = match.key->ip_proto;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
		struct flow_match_eth_addrs match;

		flow_rule_match_eth_addrs(rule, &match);

		/* use is_broadcast and is_zero to check for all 0xf or 0 */
		if (!is_zero_ether_addr(match.mask->dst)) {
			if (is_broadcast_ether_addr(match.mask->dst)) {
				field_flags |= I40E_CLOUD_FIELD_OMAC;
			} else {
				dev_err(&pf->pdev->dev, "Bad ether dest mask %pM\n",
					match.mask->dst);
				return I40E_ERR_CONFIG;
			}
		}

		if (!is_zero_ether_addr(match.mask->src)) {
			if (is_broadcast_ether_addr(match.mask->src)) {
				field_flags |= I40E_CLOUD_FIELD_IMAC;
			} else {
				dev_err(&pf->pdev->dev, "Bad ether src mask %pM\n",
					match.mask->src);
				return I40E_ERR_CONFIG;
			}
		}
		ether_addr_copy(filter->dst_mac, match.key->dst);
		ether_addr_copy(filter->src_mac, match.key->src);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
		struct flow_match_vlan match;

		flow_rule_match_vlan(rule, &match);
		if (match.mask->vlan_id) {
			if (match.mask->vlan_id == VLAN_VID_MASK) {
				field_flags |= I40E_CLOUD_FIELD_IVLAN;

			} else {
				dev_err(&pf->pdev->dev, "Bad vlan mask 0x%04x\n",
					match.mask->vlan_id);
				return I40E_ERR_CONFIG;
			}
		}

		filter->vlan_id = cpu_to_be16(match.key->vlan_id);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
		struct flow_match_control match;

		flow_rule_match_control(rule, &match);
		addr_type = match.key->addr_type;
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
		struct flow_match_ipv4_addrs match;

		flow_rule_match_ipv4_addrs(rule, &match);
		if (match.mask->dst) {
			if (match.mask->dst == cpu_to_be32(0xffffffff)) {
				field_flags |= I40E_CLOUD_FIELD_IIP;
			} else {
				dev_err(&pf->pdev->dev, "Bad ip dst mask %pI4b\n",
					&match.mask->dst);
				return I40E_ERR_CONFIG;
			}
		}

		if (match.mask->src) {
			if (match.mask->src == cpu_to_be32(0xffffffff)) {
				field_flags |= I40E_CLOUD_FIELD_IIP;
			} else {
				dev_err(&pf->pdev->dev, "Bad ip src mask %pI4b\n",
					&match.mask->src);
				return I40E_ERR_CONFIG;
			}
		}

		if (field_flags & I40E_CLOUD_FIELD_TEN_ID) {
			dev_err(&pf->pdev->dev, "Tenant id not allowed for ip filter\n");
			return I40E_ERR_CONFIG;
		}
		filter->dst_ipv4 = match.key->dst;
		filter->src_ipv4 = match.key->src;
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
		struct flow_match_ipv6_addrs match;

		flow_rule_match_ipv6_addrs(rule, &match);

		/* src and dest IPV6 address should not be LOOPBACK
		 * (0:0:0:0:0:0:0:1), which can be represented as ::1
		 */
		if (ipv6_addr_loopback(&match.key->dst) ||
		    ipv6_addr_loopback(&match.key->src)) {
			dev_err(&pf->pdev->dev,
				"Bad ipv6, addr is LOOPBACK\n");
			return I40E_ERR_CONFIG;
		}
		if (!ipv6_addr_any(&match.mask->dst) ||
		    !ipv6_addr_any(&match.mask->src))
			field_flags |= I40E_CLOUD_FIELD_IIP;

		memcpy(&filter->src_ipv6, &match.key->src.s6_addr32,
		       sizeof(filter->src_ipv6));
		memcpy(&filter->dst_ipv6, &match.key->dst.s6_addr32,
		       sizeof(filter->dst_ipv6));
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
		struct flow_match_ports match;

		flow_rule_match_ports(rule, &match);
		if (match.mask->src) {
			if (match.mask->src == cpu_to_be16(0xffff)) {
				field_flags |= I40E_CLOUD_FIELD_IIP;
			} else {
				dev_err(&pf->pdev->dev, "Bad src port mask 0x%04x\n",
					be16_to_cpu(match.mask->src));
				return I40E_ERR_CONFIG;
			}
		}

		if (match.mask->dst) {
			if (match.mask->dst == cpu_to_be16(0xffff)) {
				field_flags |= I40E_CLOUD_FIELD_IIP;
			} else {
				dev_err(&pf->pdev->dev, "Bad dst port mask 0x%04x\n",
					be16_to_cpu(match.mask->dst));
				return I40E_ERR_CONFIG;
			}
		}

		filter->dst_port = match.key->dst;
		filter->src_port = match.key->src;

		switch (filter->ip_proto) {
		case IPPROTO_TCP:
		case IPPROTO_UDP:
			break;
		default:
			dev_err(&pf->pdev->dev,
				"Only UDP and TCP transport are supported\n");
			return -EINVAL;
		}
	}
	filter->flags = field_flags;
	return 0;
}

Project: linux
File: i40e_main.c

int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr)
{
	struct i40e_mac_filter *f;
	struct hlist_node *h;
	bool found = false;
	int bkt;

	lockdep_assert_held(&vsi->mac_filter_hash_lock);
	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
		if (ether_addr_equal(macaddr, f->macaddr)) {
			__i40e_del_filter(vsi, f);
			found = true;
		}
	}

	if (found)
		return 0;
	else
		return -ENOENT;
}

Project: linux
File: i40e_main.c

static void i40e_vsi_close(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf = vsi->back;
	if (!test_and_set_bit(__I40E_VSI_DOWN, vsi->state))
		i40e_down(vsi);
	i40e_vsi_free_irq(vsi);
	i40e_vsi_free_tx_resources(vsi);
	i40e_vsi_free_rx_resources(vsi);
	vsi->current_netdev_flags = 0;
	set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state);
	if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state))
		set_bit(__I40E_CLIENT_RESET, pf->state);
}

Project: linux
File: i40e_main.c

static int i40e_veb_mem_alloc(struct i40e_pf *pf)
{
	int ret = -ENOENT;
	struct i40e_veb *veb;
	int i;

	/* Need to protect the allocation of switch elements at the PF level */
	mutex_lock(&pf->switch_mutex);

	/* VEB list may be fragmented if VEB creation/destruction has
	 * been happening.  We can afford to do a quick scan to look
	 * for any free slots in the list.
	 *
	 * find next empty veb slot, looping back around if necessary
	 */
	i = 0;
	while ((i < I40E_MAX_VEB) && (pf->veb[i] != NULL))
		i++;
	if (i >= I40E_MAX_VEB) {
		ret = -ENOMEM;
		goto err_alloc_veb;  /* out of VEB slots! */
	}

	veb = kzalloc(sizeof(*veb), GFP_KERNEL);
	if (!veb) {
		ret = -ENOMEM;
		goto err_alloc_veb;
	}
	veb->pf = pf;
	veb->idx = i;
	veb->enabled_tc = 1;

	pf->veb[i] = veb;
	ret = i;
err_alloc_veb:
	mutex_unlock(&pf->switch_mutex);
	return ret;
}

Project: linux
File: i40e_main.c

static int i40e_vsi_setup_queue_map_mqprio(struct i40e_vsi *vsi,
					   struct i40e_vsi_context *ctxt,
					   u8 enabled_tc)
{
	u16 qcount = 0, max_qcount, qmap, sections = 0;
	int i, override_q, pow, num_qps, ret;
	u8 netdev_tc = 0, offset = 0;

	if (vsi->type != I40E_VSI_MAIN)
		return -EINVAL;
	sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
	sections |= I40E_AQ_VSI_PROP_SCHED_VALID;
	vsi->tc_config.numtc = vsi->mqprio_qopt.qopt.num_tc;
	vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1;
	num_qps = vsi->mqprio_qopt.qopt.count[0];

	/* find the next higher power-of-2 of num queue pairs */
	pow = ilog2(num_qps);
	if (!is_power_of_2(num_qps))
		pow++;
	qmap = (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) |
		(pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT);

	/* Setup queue offset/count for all TCs for given VSI */
	max_qcount = vsi->mqprio_qopt.qopt.count[0];
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		/* See if the given TC is enabled for the given VSI */
		if (vsi->tc_config.enabled_tc & BIT(i)) {
			offset = vsi->mqprio_qopt.qopt.offset[i];
			qcount = vsi->mqprio_qopt.qopt.count[i];
			if (qcount > max_qcount)
				max_qcount = qcount;
			vsi->tc_config.tc_info[i].qoffset = offset;
			vsi->tc_config.tc_info[i].qcount = qcount;
			vsi->tc_config.tc_info[i].netdev_tc = netdev_tc++;
		} else {
			/* TC is not enabled so set the offset to
			 * default queue and allocate one queue
			 * for the given TC.
			 */
			vsi->tc_config.tc_info[i].qoffset = 0;
			vsi->tc_config.tc_info[i].qcount = 1;
			vsi->tc_config.tc_info[i].netdev_tc = 0;
		}
	}

	/* Set actual Tx/Rx queue pairs */
	vsi->num_queue_pairs = offset + qcount;

	/* Setup queue TC[0].qmap for given VSI context */
	ctxt->info.tc_mapping[0] = cpu_to_le16(qmap);
	ctxt->info.mapping_flags |= cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG);
	ctxt->info.queue_mapping[0] = cpu_to_le16(vsi->base_queue);
	ctxt->info.valid_sections |= cpu_to_le16(sections);

	/* Reconfigure RSS for main VSI with max queue count */
	vsi->rss_size = max_qcount;
	ret = i40e_vsi_config_rss(vsi);
	if (ret) {
		dev_info(&vsi->back->pdev->dev,
			 "Failed to reconfig rss for num_queues (%u)\n",
			 max_qcount);
		return ret;
	}
	vsi->reconfig_rss = true;
	dev_dbg(&vsi->back->pdev->dev,
		"Reconfigured rss with num_queues (%u)\n", max_qcount);

	/* Find queue count available for channel VSIs and starting offset
	 * for channel VSIs
	 */
	override_q = vsi->mqprio_qopt.qopt.count[0];
	if (override_q && override_q < vsi->num_queue_pairs) {
		vsi->cnt_q_avail = vsi->num_queue_pairs - override_q;
		vsi->next_base_queue = override_q;
	}
	return 0;
}

Project: linux
File: i40e_main.c

int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair)
{
	int err;

	err = i40e_enter_busy_conf(vsi);
	if (err)
		return err;

	i40e_queue_pair_disable_irq(vsi, queue_pair);
	err = i40e_queue_pair_toggle_rings(vsi, queue_pair, false /* off */);
	i40e_queue_pair_toggle_napi(vsi, queue_pair, false /* off */);
	i40e_queue_pair_clean_rings(vsi, queue_pair);
	i40e_queue_pair_reset_stats(vsi, queue_pair);

	return err;
}

Project: linux
File: i40e_main.c

static u8 i40e_get_udp_port_idx(struct i40e_pf *pf, u16 port)
{
	u8 i;

	for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
		/* Do not report ports with pending deletions as
		 * being available.
		 */
		if (!port && (pf->pending_udp_bitmap & BIT_ULL(i)))
			continue;
		if (pf->udp_ports[i].port == port)
			return i;
	}

	return i;
}

Project: linux
File: i40e_main.c

static void *i40e_fwd_add(struct net_device *netdev, struct net_device *vdev)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	u16 q_per_macvlan = 0, macvlan_cnt = 0, vectors;
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_fwd_adapter *fwd;
	int avail_macvlan, ret;

	if ((pf->flags & I40E_FLAG_DCB_ENABLED)) {
		netdev_info(netdev, "Macvlans are not supported when DCB is enabled\n");
		return ERR_PTR(-EINVAL);
	}
	if ((pf->flags & I40E_FLAG_TC_MQPRIO)) {
		netdev_info(netdev, "Macvlans are not supported when HW TC offload is on\n");
		return ERR_PTR(-EINVAL);
	}
	if (pf->num_lan_msix < I40E_MIN_MACVLAN_VECTORS) {
		netdev_info(netdev, "Not enough vectors available to support macvlans\n");
		return ERR_PTR(-EINVAL);
	}

	/* The macvlan device has to be a single Q device so that the
	 * tc_to_txq field can be reused to pick the tx queue.
	 */
	if (netif_is_multiqueue(vdev))
		return ERR_PTR(-ERANGE);

	if (!vsi->macvlan_cnt) {
		/* reserve bit 0 for the pf device */
		set_bit(0, vsi->fwd_bitmask);

		/* Try to reserve as many queues as possible for macvlans. First
		 * reserve 3/4th of max vectors, then half, then quarter and
		 * calculate Qs per macvlan as you go
		 */
		vectors = pf->num_lan_msix;
		if (vectors <= I40E_MAX_MACVLANS && vectors > 64) {
			/* allocate 4 Qs per macvlan and 32 Qs to the PF*/
			q_per_macvlan = 4;
			macvlan_cnt = (vectors - 32) / 4;
		} else if (vectors <= 64 && vectors > 32) {
			/* allocate 2 Qs per macvlan and 16 Qs to the PF*/
			q_per_macvlan = 2;
			macvlan_cnt = (vectors - 16) / 2;
		} else if (vectors <= 32 && vectors > 16) {
			/* allocate 1 Q per macvlan and 16 Qs to the PF*/
			q_per_macvlan = 1;
			macvlan_cnt = vectors - 16;
		} else if (vectors <= 16 && vectors > 8) {
			/* allocate 1 Q per macvlan and 8 Qs to the PF */
			q_per_macvlan = 1;
			macvlan_cnt = vectors - 8;
		} else {
			/* allocate 1 Q per macvlan and 1 Q to the PF */
			q_per_macvlan = 1;
			macvlan_cnt = vectors - 1;
		}

		if (macvlan_cnt == 0)
			return ERR_PTR(-EBUSY);

		/* Quiesce VSI queues */
		i40e_quiesce_vsi(vsi);

		/* sets up the macvlans but does not "enable" them */
		ret = i40e_setup_macvlans(vsi, macvlan_cnt, q_per_macvlan,
					  vdev);
		if (ret)
			return ERR_PTR(ret);

		/* Unquiesce VSI */
		i40e_unquiesce_vsi(vsi);
	}
	avail_macvlan = find_first_zero_bit(vsi->fwd_bitmask,
					    vsi->macvlan_cnt);
	if (avail_macvlan >= I40E_MAX_MACVLANS)
		return ERR_PTR(-EBUSY);

	/* create the fwd struct */
	fwd = kzalloc(sizeof(*fwd), GFP_KERNEL);
	if (!fwd)
		return ERR_PTR(-ENOMEM);

	set_bit(avail_macvlan, vsi->fwd_bitmask);
	fwd->bit_no = avail_macvlan;
	netdev_set_sb_channel(vdev, avail_macvlan);
	fwd->netdev = vdev;

	if (!netif_running(netdev))
		return fwd;

	/* Set fwd ring up */
	ret = i40e_fwd_ring_up(vsi, vdev, fwd);
	if (ret) {
		/* unbind the queues and drop the subordinate channel config */
		netdev_unbind_sb_channel(netdev, vdev);
		netdev_set_sb_channel(vdev, 0);

		kfree(fwd);
		return ERR_PTR(-EINVAL);
	}

	return fwd;
}

Project: linux
File: i40e_main.c

struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, const u8 *macaddr)
{
	struct i40e_mac_filter *f;
	u64 key;

	if (!vsi || !macaddr)
		return NULL;

	key = i40e_addr_to_hkey(macaddr);
	hash_for_each_possible(vsi->mac_filter_hash, f, hlist, key) {
		if ((ether_addr_equal(macaddr, f->macaddr)))
			return f;
	}
	return NULL;
}

Project: linux
File: i40e_main.c

static int i40e_init_pf_dcb(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	int err = 0;

	/* Do not enable DCB for SW1 and SW2 images even if the FW is capable
	 * Also do not enable DCBx if FW LLDP agent is disabled
	 */
	if ((pf->hw_features & I40E_HW_NO_DCB_SUPPORT) ||
	    (pf->flags & I40E_FLAG_DISABLE_FW_LLDP)) {
		dev_info(&pf->pdev->dev, "DCB is not supported or FW LLDP is disabled\n");
		err = I40E_NOT_SUPPORTED;
		goto out;
	}

	err = i40e_init_dcb(hw, true);
	if (!err) {
		/* Device/Function is not DCBX capable */
		if ((!hw->func_caps.dcb) ||
		    (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED)) {
			dev_info(&pf->pdev->dev,
				 "DCBX offload is not supported or is disabled for this PF.\n");
		} else {
			/* When status is not DISABLED then DCBX in FW */
			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
				       DCB_CAP_DCBX_VER_IEEE;

			pf->flags |= I40E_FLAG_DCB_CAPABLE;
			/* Enable DCB tagging only when more than one TC
			 * or explicitly disable if only one TC
			 */
			if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1)
				pf->flags |= I40E_FLAG_DCB_ENABLED;
			else
				pf->flags &= ~I40E_FLAG_DCB_ENABLED;
			dev_dbg(&pf->pdev->dev,
				"DCBX offload is supported for this PF.\n");
		}
	} else if (pf->hw.aq.asq_last_status == I40E_AQ_RC_EPERM) {
		dev_info(&pf->pdev->dev, "FW LLDP disabled for this PF.\n");
		pf->flags |= I40E_FLAG_DISABLE_FW_LLDP;
	} else {
		dev_info(&pf->pdev->dev,
			 "Query for DCB configuration failed, err %s aq_err %s\n",
			 i40e_stat_str(&pf->hw, err),
			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
	}

out:
	return err;
}

Project: linux
File: i40e_main.c

static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
				 __always_unused __be16 proto, u16 vid)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;

	/* return code is ignored as there is nothing a user
	 * can do about failure to remove and a log message was
	 * already printed from the other function
	 */
	i40e_vsi_kill_vlan(vsi, vid);

	clear_bit(vid, vsi->active_vlans);

	return 0;
}

Project: linux
File: i40e_main.c

static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
{
	unsigned long min_flush_time;
	int flush_wait_retry = 50;
	bool disable_atr = false;
	int fd_room;
	int reg;

	if (!time_after(jiffies, pf->fd_flush_timestamp +
				 (I40E_MIN_FD_FLUSH_INTERVAL * HZ)))
		return;

	/* If the flush is happening too quick and we have mostly SB rules we
	 * should not re-enable ATR for some time.
	 */
	min_flush_time = pf->fd_flush_timestamp +
			 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE * HZ);
	fd_room = pf->fdir_pf_filter_count - pf->fdir_pf_active_filters;

	if (!(time_after(jiffies, min_flush_time)) &&
	    (fd_room < I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR)) {
		if (I40E_DEBUG_FD & pf->hw.debug_mask)
			dev_info(&pf->pdev->dev, "ATR disabled, not enough FD filter space.\n");
		disable_atr = true;
	}

	pf->fd_flush_timestamp = jiffies;
	set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
	/* flush all filters */
	wr32(&pf->hw, I40E_PFQF_CTL_1,
	     I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
	i40e_flush(&pf->hw);
	pf->fd_flush_cnt++;
	pf->fd_add_err = 0;
	do {
		/* Check FD flush status every 5-6msec */
		usleep_range(5000, 6000);
		reg = rd32(&pf->hw, I40E_PFQF_CTL_1);
		if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK))
			break;
	} while (flush_wait_retry--);
	if (reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK) {
		dev_warn(&pf->pdev->dev, "FD table did not flush, needs more time\n");
	} else {
		/* replay sideband filters */
		i40e_fdir_filter_restore(pf->vsi[pf->lan_vsi]);
		if (!disable_atr && !pf->fd_tcp4_filter_cnt)
			clear_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
		clear_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
		if (I40E_DEBUG_FD & pf->hw.debug_mask)
			dev_info(&pf->pdev->dev, "FD Filter table flushed and FD-SB replayed.\n");
	}
}

Project: linux
File: i40e_main.c

static int i40e_vsi_clear(struct i40e_vsi *vsi)
{
	struct i40e_pf *pf;

	if (!vsi)
		return 0;

	if (!vsi->back)
		goto free_vsi;
	pf = vsi->back;

	mutex_lock(&pf->switch_mutex);
	if (!pf->vsi[vsi->idx]) {
		dev_err(&pf->pdev->dev, "pf->vsi[%d] is NULL, just free vsi[%d](type %d)\n",
			vsi->idx, vsi->idx, vsi->type);
		goto unlock_vsi;
	}

	if (pf->vsi[vsi->idx] != vsi) {
		dev_err(&pf->pdev->dev,
			"pf->vsi[%d](type %d) != vsi[%d](type %d): no free!\n",
			pf->vsi[vsi->idx]->idx,
			pf->vsi[vsi->idx]->type,
			vsi->idx, vsi->type);
		goto unlock_vsi;
	}

	/* updates the PF for this cleared vsi */
	i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx);
	i40e_put_lump(pf->irq_pile, vsi->base_vector, vsi->idx);

	bitmap_free(vsi->af_xdp_zc_qps);
	i40e_vsi_free_arrays(vsi, true);
	i40e_clear_rss_config_user(vsi);

	pf->vsi[vsi->idx] = NULL;
	if (vsi->idx < pf->next_vsi)
		pf->next_vsi = vsi->idx;

unlock_vsi:
	mutex_unlock(&pf->switch_mutex);
free_vsi:
	kfree(vsi);

	return 0;
}