i40e_virtchnl_pf.c 83.7 KB
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/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
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 * Copyright(c) 2013 - 2016 Intel Corporation.
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 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
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Greg Rose 已提交
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 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 ******************************************************************************/

#include "i40e.h"

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/*********************notification routines***********************/

/**
 * i40e_vc_vf_broadcast
 * @pf: pointer to the PF structure
 * @opcode: operation code
 * @retval: return value
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * send a message to all VFs on a given PF
 **/
static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
				 enum i40e_virtchnl_ops v_opcode,
				 i40e_status v_retval, u8 *msg,
				 u16 msglen)
{
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf = pf->vf;
	int i;

	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
		/* Not all vfs are enabled so skip the ones that are not */
		if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
		    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
			continue;

		/* Ignore return value on purpose - a given VF may fail, but
		 * we need to keep going and send to all of them
		 */
		i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
				       msg, msglen, NULL);
	}
}

/**
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 * i40e_vc_notify_vf_link_state
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 * @vf: pointer to the VF structure
 *
 * send a link status message to a single VF
 **/
static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
{
	struct i40e_virtchnl_pf_event pfe;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_link_status *ls = &pf->hw.phy.link_info;
	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;

	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
	if (vf->link_forced) {
		pfe.event_data.link_event.link_status = vf->link_up;
		pfe.event_data.link_event.link_speed =
			(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
	} else {
		pfe.event_data.link_event.link_status =
			ls->link_info & I40E_AQ_LINK_UP;
		pfe.event_data.link_event.link_speed = ls->link_speed;
	}
	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
			       0, (u8 *)&pfe, sizeof(pfe), NULL);
}

/**
 * i40e_vc_notify_link_state
 * @pf: pointer to the PF structure
 *
 * send a link status message to all VFs on a given PF
 **/
void i40e_vc_notify_link_state(struct i40e_pf *pf)
{
	int i;

	for (i = 0; i < pf->num_alloc_vfs; i++)
		i40e_vc_notify_vf_link_state(&pf->vf[i]);
}

/**
 * i40e_vc_notify_reset
 * @pf: pointer to the PF structure
 *
 * indicate a pending reset to all VFs on a given PF
 **/
void i40e_vc_notify_reset(struct i40e_pf *pf)
{
	struct i40e_virtchnl_pf_event pfe;

	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
	i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
			     (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
}

/**
 * i40e_vc_notify_vf_reset
 * @vf: pointer to the VF structure
 *
 * indicate a pending reset to the given VF
 **/
void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
{
	struct i40e_virtchnl_pf_event pfe;
	int abs_vf_id;

	/* validate the request */
	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
		return;

	/* verify if the VF is in either init or active before proceeding */
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
	    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
		return;

	abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;

	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
	i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
			       0, (u8 *)&pfe,
			       sizeof(struct i40e_virtchnl_pf_event), NULL);
}
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/***********************misc routines*****************************/

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/**
 * i40e_vc_disable_vf
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 * @pf: pointer to the PF info
 * @vf: pointer to the VF info
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 *
 * Disable the VF through a SW reset
 **/
static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
{
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	i40e_vc_notify_vf_reset(vf);
	i40e_reset_vf(vf, false);
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}

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/**
 * i40e_vc_isvalid_vsi_id
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 * @vf: pointer to the VF info
 * @vsi_id: VF relative VSI id
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 *
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 * check for the valid VSI id
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 **/
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static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
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{
	struct i40e_pf *pf = vf->pf;
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	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
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	return (vsi && (vsi->vf_id == vf->vf_id));
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}

/**
 * i40e_vc_isvalid_queue_id
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 * @vf: pointer to the VF info
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 * @vsi_id: vsi id
 * @qid: vsi relative queue id
 *
 * check for the valid queue id
 **/
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static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
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					    u8 qid)
{
	struct i40e_pf *pf = vf->pf;
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	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
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	return (vsi && (qid < vsi->alloc_queue_pairs));
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}

/**
 * i40e_vc_isvalid_vector_id
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 * @vf: pointer to the VF info
 * @vector_id: VF relative vector id
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 *
 * check for the valid vector id
 **/
static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
{
	struct i40e_pf *pf = vf->pf;

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	return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
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}

/***********************vf resource mgmt routines*****************/

/**
 * i40e_vc_get_pf_queue_id
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 * @vf: pointer to the VF info
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 * @vsi_id: id of VSI as provided by the FW
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 * @vsi_queue_id: vsi relative queue id
 *
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 * return PF relative queue id
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 **/
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static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
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				   u8 vsi_queue_id)
{
	struct i40e_pf *pf = vf->pf;
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	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
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	u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;

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	if (!vsi)
		return pf_queue_id;

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	if (le16_to_cpu(vsi->info.mapping_flags) &
	    I40E_AQ_VSI_QUE_MAP_NONCONTIG)
		pf_queue_id =
			le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
	else
		pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
			      vsi_queue_id;

	return pf_queue_id;
}

/**
 * i40e_config_irq_link_list
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 * @vf: pointer to the VF info
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 * @vsi_id: id of VSI as given by the FW
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 * @vecmap: irq map info
 *
 * configure irq link list from the map
 **/
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static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
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				      struct i40e_virtchnl_vector_map *vecmap)
{
	unsigned long linklistmap = 0, tempmap;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	u16 vsi_queue_id, pf_queue_id;
	enum i40e_queue_type qtype;
	u16 next_q, vector_id;
	u32 reg, reg_idx;
	u16 itr_idx = 0;

	vector_id = vecmap->vector_id;
	/* setup the head */
	if (0 == vector_id)
		reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
	else
		reg_idx = I40E_VPINT_LNKLSTN(
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		     ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
		     (vector_id - 1));
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	if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
		/* Special case - No queues mapped on this vector */
		wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
		goto irq_list_done;
	}
	tempmap = vecmap->rxq_map;
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	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
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		linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
				    vsi_queue_id));
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	}

	tempmap = vecmap->txq_map;
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	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
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		linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
				     vsi_queue_id + 1));
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	}

	next_q = find_first_bit(&linklistmap,
				(I40E_MAX_VSI_QP *
				 I40E_VIRTCHNL_SUPPORTED_QTYPES));
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	vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
	qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
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	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
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	reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);

	wr32(hw, reg_idx, reg);

	while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
		switch (qtype) {
		case I40E_QUEUE_TYPE_RX:
			reg_idx = I40E_QINT_RQCTL(pf_queue_id);
			itr_idx = vecmap->rxitr_idx;
			break;
		case I40E_QUEUE_TYPE_TX:
			reg_idx = I40E_QINT_TQCTL(pf_queue_id);
			itr_idx = vecmap->txitr_idx;
			break;
		default:
			break;
		}

		next_q = find_next_bit(&linklistmap,
				       (I40E_MAX_VSI_QP *
					I40E_VIRTCHNL_SUPPORTED_QTYPES),
				       next_q + 1);
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		if (next_q <
		    (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
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			vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
			qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
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			pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
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							      vsi_queue_id);
		} else {
			pf_queue_id = I40E_QUEUE_END_OF_LIST;
			qtype = 0;
		}

		/* format for the RQCTL & TQCTL regs is same */
		reg = (vector_id) |
		    (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
		    (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
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		    BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
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		    (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
		wr32(hw, reg_idx, reg);
	}

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	/* if the vf is running in polling mode and using interrupt zero,
	 * need to disable auto-mask on enabling zero interrupt for VFs.
	 */
	if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
	    (vector_id == 0)) {
		reg = rd32(hw, I40E_GLINT_CTL);
		if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
			reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
			wr32(hw, I40E_GLINT_CTL, reg);
		}
	}

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irq_list_done:
	i40e_flush(hw);
}

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/**
 * i40e_release_iwarp_qvlist
 * @vf: pointer to the VF.
 *
 **/
static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
	u32 msix_vf;
	u32 i;

	if (!vf->qvlist_info)
		return;

	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
	for (i = 0; i < qvlist_info->num_vectors; i++) {
		struct i40e_virtchnl_iwarp_qv_info *qv_info;
		u32 next_q_index, next_q_type;
		struct i40e_hw *hw = &pf->hw;
		u32 v_idx, reg_idx, reg;

		qv_info = &qvlist_info->qv_info[i];
		if (!qv_info)
			continue;
		v_idx = qv_info->v_idx;
		if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
			/* Figure out the queue after CEQ and make that the
			 * first queue.
			 */
			reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
			reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
			next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
					>> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
			next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
					>> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;

			reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
			reg = (next_q_index &
			       I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
			       (next_q_type <<
			       I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);

			wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
		}
	}
	kfree(vf->qvlist_info);
	vf->qvlist_info = NULL;
}

/**
 * i40e_config_iwarp_qvlist
 * @vf: pointer to the VF info
 * @qvlist_info: queue and vector list
 *
 * Return 0 on success or < 0 on error
 **/
static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
				    struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_virtchnl_iwarp_qv_info *qv_info;
	u32 v_idx, i, reg_idx, reg;
	u32 next_q_idx, next_q_type;
	u32 msix_vf, size;

	size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) +
	       (sizeof(struct i40e_virtchnl_iwarp_qv_info) *
						(qvlist_info->num_vectors - 1));
	vf->qvlist_info = kzalloc(size, GFP_KERNEL);
	vf->qvlist_info->num_vectors = qvlist_info->num_vectors;

	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
	for (i = 0; i < qvlist_info->num_vectors; i++) {
		qv_info = &qvlist_info->qv_info[i];
		if (!qv_info)
			continue;
		v_idx = qv_info->v_idx;

		/* Validate vector id belongs to this vf */
		if (!i40e_vc_isvalid_vector_id(vf, v_idx))
			goto err;

		vf->qvlist_info->qv_info[i] = *qv_info;

		reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
		/* We might be sharing the interrupt, so get the first queue
		 * index and type, push it down the list by adding the new
		 * queue on top. Also link it with the new queue in CEQCTL.
		 */
		reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
		next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
				I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
		next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
				I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);

		if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
			reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
			reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
			(v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
			(qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
			(next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
			(next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
			wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);

			reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
			reg = (qv_info->ceq_idx &
			       I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
			       (I40E_QUEUE_TYPE_PE_CEQ <<
			       I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
			wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
		}

		if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
			reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
			(v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
			(qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));

			wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
		}
	}

	return 0;
err:
	kfree(vf->qvlist_info);
	vf->qvlist_info = NULL;
	return -EINVAL;
}

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/**
 * i40e_config_vsi_tx_queue
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 * @vf: pointer to the VF info
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 * @vsi_id: id of VSI as provided by the FW
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 * @vsi_queue_id: vsi relative queue index
 * @info: config. info
 *
 * configure tx queue
 **/
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static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
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				    u16 vsi_queue_id,
				    struct i40e_virtchnl_txq_info *info)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_hmc_obj_txq tx_ctx;
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	struct i40e_vsi *vsi;
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	u16 pf_queue_id;
	u32 qtx_ctl;
	int ret = 0;

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	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
	vsi = i40e_find_vsi_from_id(pf, vsi_id);
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	/* clear the context structure first */
	memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));

	/* only set the required fields */
	tx_ctx.base = info->dma_ring_addr / 128;
	tx_ctx.qlen = info->ring_len;
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	tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
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	tx_ctx.rdylist_act = 0;
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	tx_ctx.head_wb_ena = info->headwb_enabled;
	tx_ctx.head_wb_addr = info->dma_headwb_addr;
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	/* clear the context in the HMC */
	ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to clear VF LAN Tx queue context %d, error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_context;
	}

	/* set the context in the HMC */
	ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to set VF LAN Tx queue context %d error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_context;
	}

	/* associate this queue with the PCI VF function */
	qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
541
	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
542 543 544 545 546 547 548 549 550 551 552 553 554
		    & I40E_QTX_CTL_PF_INDX_MASK);
	qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
		     << I40E_QTX_CTL_VFVM_INDX_SHIFT)
		    & I40E_QTX_CTL_VFVM_INDX_MASK);
	wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
	i40e_flush(hw);

error_context:
	return ret;
}

/**
 * i40e_config_vsi_rx_queue
555
 * @vf: pointer to the VF info
556
 * @vsi_id: id of VSI  as provided by the FW
557 558 559 560 561
 * @vsi_queue_id: vsi relative queue index
 * @info: config. info
 *
 * configure rx queue
 **/
562
static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
563 564 565 566 567 568 569 570 571
				    u16 vsi_queue_id,
				    struct i40e_virtchnl_rxq_info *info)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_hmc_obj_rxq rx_ctx;
	u16 pf_queue_id;
	int ret = 0;

572
	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593

	/* clear the context structure first */
	memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));

	/* only set the required fields */
	rx_ctx.base = info->dma_ring_addr / 128;
	rx_ctx.qlen = info->ring_len;

	if (info->splithdr_enabled) {
		rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2      |
				  I40E_RX_SPLIT_IP      |
				  I40E_RX_SPLIT_TCP_UDP |
				  I40E_RX_SPLIT_SCTP;
		/* header length validation */
		if (info->hdr_size > ((2 * 1024) - 64)) {
			ret = -EINVAL;
			goto error_param;
		}
		rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;

		/* set splitalways mode 10b */
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Mitch Williams 已提交
594
		rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
	}

	/* databuffer length validation */
	if (info->databuffer_size > ((16 * 1024) - 128)) {
		ret = -EINVAL;
		goto error_param;
	}
	rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;

	/* max pkt. length validation */
	if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
		ret = -EINVAL;
		goto error_param;
	}
	rx_ctx.rxmax = info->max_pkt_size;

	/* enable 32bytes desc always */
	rx_ctx.dsize = 1;

	/* default values */
	rx_ctx.lrxqthresh = 2;
	rx_ctx.crcstrip = 1;
617
	rx_ctx.prefena = 1;
618
	rx_ctx.l2tsel = 1;
619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645

	/* clear the context in the HMC */
	ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to clear VF LAN Rx queue context %d, error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_param;
	}

	/* set the context in the HMC */
	ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to set VF LAN Rx queue context %d error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_param;
	}

error_param:
	return ret;
}

/**
 * i40e_alloc_vsi_res
646
 * @vf: pointer to the VF info
647 648
 * @type: type of VSI to allocate
 *
649
 * alloc VF vsi context & resources
650 651 652 653 654 655 656 657 658 659 660 661
 **/
static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
{
	struct i40e_mac_filter *f = NULL;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi;
	int ret = 0;

	vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);

	if (!vsi) {
		dev_err(&pf->pdev->dev,
662
			"add vsi failed for VF %d, aq_err %d\n",
663 664 665 666 667
			vf->vf_id, pf->hw.aq.asq_last_status);
		ret = -ENOENT;
		goto error_alloc_vsi_res;
	}
	if (type == I40E_VSI_SRIOV) {
668
		u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
J
Jesse Brandeburg 已提交
669

670
		vf->lan_vsi_idx = vsi->idx;
671
		vf->lan_vsi_id = vsi->id;
G
Greg Rose 已提交
672 673 674 675 676 677 678 679
		/* If the port VLAN has been configured and then the
		 * VF driver was removed then the VSI port VLAN
		 * configuration was destroyed.  Check if there is
		 * a port VLAN and restore the VSI configuration if
		 * needed.
		 */
		if (vf->port_vlan_id)
			i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
K
Kiran Patil 已提交
680 681

		spin_lock_bh(&vsi->mac_filter_list_lock);
M
Mitch Williams 已提交
682 683 684 685 686 687 688 689 690
		if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
			f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
				       vf->port_vlan_id ? vf->port_vlan_id : -1,
				       true, false);
			if (!f)
				dev_info(&pf->pdev->dev,
					 "Could not add MAC filter %pM for VF %d\n",
					vf->default_lan_addr.addr, vf->vf_id);
		}
691 692
		f = i40e_add_filter(vsi, brdcast,
				    vf->port_vlan_id ? vf->port_vlan_id : -1,
693 694 695 696
				    true, false);
		if (!f)
			dev_info(&pf->pdev->dev,
				 "Could not allocate VF broadcast filter\n");
K
Kiran Patil 已提交
697
		spin_unlock_bh(&vsi->mac_filter_list_lock);
698
	}
699

700
	/* program mac filter */
J
Jesse Brandeburg 已提交
701
	ret = i40e_sync_vsi_filters(vsi);
M
Mitch Williams 已提交
702
	if (ret)
703 704
		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");

705 706 707 708 709 710 711 712 713
	/* Set VF bandwidth if specified */
	if (vf->tx_rate) {
		ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
						  vf->tx_rate / 50, 0, NULL);
		if (ret)
			dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
				vf->vf_id, ret);
	}

714 715 716 717
error_alloc_vsi_res:
	return ret;
}

M
Mitch Williams 已提交
718 719
/**
 * i40e_enable_vf_mappings
720
 * @vf: pointer to the VF info
M
Mitch Williams 已提交
721
 *
722
 * enable VF mappings
M
Mitch Williams 已提交
723 724 725 726 727 728 729 730 731 732 733 734
 **/
static void i40e_enable_vf_mappings(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	u32 reg, total_queue_pairs = 0;
	int j;

	/* Tell the hardware we're using noncontiguous mapping. HW requires
	 * that VF queues be mapped using this method, even when they are
	 * contiguous in real life
	 */
735 736
	i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
			  I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
M
Mitch Williams 已提交
737 738 739 740 741 742

	/* enable VF vplan_qtable mappings */
	reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);

	/* map PF queues to VF queues */
743 744
	for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
		u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
J
Jesse Brandeburg 已提交
745

M
Mitch Williams 已提交
746 747 748 749 750 751 752
		reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
		wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
		total_queue_pairs++;
	}

	/* map PF queues to VSI */
	for (j = 0; j < 7; j++) {
753
		if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
M
Mitch Williams 已提交
754 755
			reg = 0x07FF07FF;	/* unused */
		} else {
756
			u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
M
Mitch Williams 已提交
757 758
							  j * 2);
			reg = qid;
759
			qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
M
Mitch Williams 已提交
760 761 762
						      (j * 2) + 1);
			reg |= qid << 16;
		}
763 764
		i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
				  reg);
M
Mitch Williams 已提交
765 766 767 768 769 770 771
	}

	i40e_flush(hw);
}

/**
 * i40e_disable_vf_mappings
772
 * @vf: pointer to the VF info
M
Mitch Williams 已提交
773
 *
774
 * disable VF mappings
M
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775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791
 **/
static void i40e_disable_vf_mappings(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	int i;

	/* disable qp mappings */
	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
	for (i = 0; i < I40E_MAX_VSI_QP; i++)
		wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
		     I40E_QUEUE_END_OF_LIST);
	i40e_flush(hw);
}

/**
 * i40e_free_vf_res
792
 * @vf: pointer to the VF info
M
Mitch Williams 已提交
793
 *
794
 * free VF resources
M
Mitch Williams 已提交
795 796 797 798
 **/
static void i40e_free_vf_res(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
M
Mitch Williams 已提交
799 800 801
	struct i40e_hw *hw = &pf->hw;
	u32 reg_idx, reg;
	int i, msix_vf;
M
Mitch Williams 已提交
802 803

	/* free vsi & disconnect it from the parent uplink */
804 805 806
	if (vf->lan_vsi_idx) {
		i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
		vf->lan_vsi_idx = 0;
M
Mitch Williams 已提交
807 808
		vf->lan_vsi_id = 0;
	}
809 810
	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;

M
Mitch Williams 已提交
811 812 813 814 815 816 817 818 819 820 821 822
	/* disable interrupts so the VF starts in a known state */
	for (i = 0; i < msix_vf; i++) {
		/* format is same for both registers */
		if (0 == i)
			reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
		else
			reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
						      (vf->vf_id))
						     + (i - 1));
		wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
		i40e_flush(hw);
	}
M
Mitch Williams 已提交
823

M
Mitch Williams 已提交
824 825 826 827 828 829 830 831 832 833 834 835 836 837
	/* clear the irq settings */
	for (i = 0; i < msix_vf; i++) {
		/* format is same for both registers */
		if (0 == i)
			reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
		else
			reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
						      (vf->vf_id))
						     + (i - 1));
		reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
		       I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
		wr32(hw, reg_idx, reg);
		i40e_flush(hw);
	}
M
Mitch Williams 已提交
838 839 840 841 842
	/* reset some of the state varibles keeping
	 * track of the resources
	 */
	vf->num_queue_pairs = 0;
	vf->vf_states = 0;
843
	clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
M
Mitch Williams 已提交
844 845 846 847
}

/**
 * i40e_alloc_vf_res
848
 * @vf: pointer to the VF info
M
Mitch Williams 已提交
849
 *
850
 * allocate VF resources
M
Mitch Williams 已提交
851 852 853 854 855 856 857 858 859 860 861
 **/
static int i40e_alloc_vf_res(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	int total_queue_pairs = 0;
	int ret;

	/* allocate hw vsi context & associated resources */
	ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
	if (ret)
		goto error_alloc;
862
	total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
M
Mitch Williams 已提交
863 864 865
	set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);

	/* store the total qps number for the runtime
866
	 * VF req validation
M
Mitch Williams 已提交
867 868 869
	 */
	vf->num_queue_pairs = total_queue_pairs;

870
	/* VF is now completely initialized */
M
Mitch Williams 已提交
871 872 873 874 875 876 877 878 879
	set_bit(I40E_VF_STAT_INIT, &vf->vf_states);

error_alloc:
	if (ret)
		i40e_free_vf_res(vf);

	return ret;
}

M
Mitch Williams 已提交
880 881 882 883
#define VF_DEVICE_STATUS 0xAA
#define VF_TRANS_PENDING_MASK 0x20
/**
 * i40e_quiesce_vf_pci
884
 * @vf: pointer to the VF structure
M
Mitch Williams 已提交
885 886 887 888 889 890 891 892 893 894 895
 *
 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
 * if the transactions never clear.
 **/
static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	int vf_abs_id, i;
	u32 reg;

896
	vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
M
Mitch Williams 已提交
897 898 899 900 901 902 903 904 905 906 907 908

	wr32(hw, I40E_PF_PCI_CIAA,
	     VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
	for (i = 0; i < 100; i++) {
		reg = rd32(hw, I40E_PF_PCI_CIAD);
		if ((reg & VF_TRANS_PENDING_MASK) == 0)
			return 0;
		udelay(1);
	}
	return -EIO;
}

909 910
/**
 * i40e_reset_vf
911
 * @vf: pointer to the VF structure
912 913
 * @flr: VFLR was issued or not
 *
914
 * reset the VF
915
 **/
M
Mitch Williams 已提交
916
void i40e_reset_vf(struct i40e_vf *vf, bool flr)
917 918 919
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
920
	u32 reg, reg_idx, bit_idx;
921
	bool rsd = false;
M
Mitch Williams 已提交
922
	int i;
923

924 925 926
	if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
		return;

927 928 929
	/* warn the VF */
	clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);

M
Mitch Williams 已提交
930 931
	/* In the case of a VFLR, the HW has already reset the VF and we
	 * just need to clean up, so don't hit the VFRTRIG register.
932 933
	 */
	if (!flr) {
934
		/* reset VF using VPGEN_VFRTRIG reg */
M
Mitch Williams 已提交
935 936
		reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
		reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
937 938 939
		wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
		i40e_flush(hw);
	}
940 941 942 943
	/* clear the VFLR bit in GLGEN_VFLRSTAT */
	reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
	bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
	wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
A
Akeem G Abodunrin 已提交
944
	i40e_flush(hw);
945

M
Mitch Williams 已提交
946 947 948 949
	if (i40e_quiesce_vf_pci(vf))
		dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
			vf->vf_id);

950 951 952
	/* poll VPGEN_VFRSTAT reg to make sure
	 * that reset is complete
	 */
M
Mitch Williams 已提交
953 954 955 956 957
	for (i = 0; i < 10; i++) {
		/* VF reset requires driver to first reset the VF and then
		 * poll the status register to make sure that the reset
		 * completed successfully. Due to internal HW FIFO flushes,
		 * we must wait 10ms before the register will be valid.
958
		 */
M
Mitch Williams 已提交
959
		usleep_range(10000, 20000);
960 961 962 963 964 965 966
		reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
		if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
			rsd = true;
			break;
		}
	}

967 968 969
	if (flr)
		usleep_range(10000, 20000);

970
	if (!rsd)
M
Mitch Williams 已提交
971
		dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
972
			vf->vf_id);
M
Mitch Williams 已提交
973
	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
974 975 976 977
	/* clear the reset bit in the VPGEN_VFRTRIG reg */
	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
	reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
M
Mitch Williams 已提交
978 979

	/* On initial reset, we won't have any queues */
980
	if (vf->lan_vsi_idx == 0)
M
Mitch Williams 已提交
981 982
		goto complete_reset;

983
	i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
M
Mitch Williams 已提交
984
complete_reset:
985
	/* reallocate VF resources to reset the VSI state */
M
Mitch Williams 已提交
986
	i40e_free_vf_res(vf);
987
	if (!i40e_alloc_vf_res(vf)) {
988
		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
989 990 991
		i40e_enable_vf_mappings(vf);
		set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
		clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
992
		i40e_notify_client_of_vf_reset(pf, abs_vf_id);
993
	}
994
	/* tell the VF the reset is done */
M
Mitch Williams 已提交
995
	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
996

997
	i40e_flush(hw);
998
	clear_bit(__I40E_VF_DISABLE, &pf->state);
999
}
1000

1001 1002
/**
 * i40e_free_vfs
1003
 * @pf: pointer to the PF structure
1004
 *
1005
 * free VF resources
1006 1007 1008
 **/
void i40e_free_vfs(struct i40e_pf *pf)
{
1009 1010 1011
	struct i40e_hw *hw = &pf->hw;
	u32 reg_idx, bit_idx;
	int i, tmp, vf_id;
1012 1013 1014

	if (!pf->vf)
		return;
1015 1016
	while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
		usleep_range(1000, 2000);
1017

1018
	i40e_notify_client_of_vf_enable(pf, 0);
M
Mitch Williams 已提交
1019 1020 1021 1022
	for (i = 0; i < pf->num_alloc_vfs; i++)
		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
			i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
					       false);
M
Mitch Williams 已提交
1023

1024 1025 1026 1027 1028 1029
	/* Disable IOV before freeing resources. This lets any VF drivers
	 * running in the host get themselves cleaned up before we yank
	 * the carpet out from underneath their feet.
	 */
	if (!pci_vfs_assigned(pf->pdev))
		pci_disable_sriov(pf->pdev);
M
Mitch Williams 已提交
1030 1031
	else
		dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1032 1033 1034

	msleep(20); /* let any messages in transit get finished up */

1035
	/* free up VF resources */
1036 1037 1038
	tmp = pf->num_alloc_vfs;
	pf->num_alloc_vfs = 0;
	for (i = 0; i < tmp; i++) {
1039 1040 1041 1042 1043 1044 1045 1046 1047
		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
			i40e_free_vf_res(&pf->vf[i]);
		/* disable qp mappings */
		i40e_disable_vf_mappings(&pf->vf[i]);
	}

	kfree(pf->vf);
	pf->vf = NULL;

1048 1049 1050 1051
	/* This check is for when the driver is unloaded while VFs are
	 * assigned. Setting the number of VFs to 0 through sysfs is caught
	 * before this function ever gets called.
	 */
1052
	if (!pci_vfs_assigned(pf->pdev)) {
1053 1054 1055 1056 1057 1058
		/* Acknowledge VFLR for all VFS. Without this, VFs will fail to
		 * work correctly when SR-IOV gets re-enabled.
		 */
		for (vf_id = 0; vf_id < tmp; vf_id++) {
			reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
			bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1059
			wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1060
		}
1061
	}
1062
	clear_bit(__I40E_VF_DISABLE, &pf->state);
1063 1064 1065 1066 1067
}

#ifdef CONFIG_PCI_IOV
/**
 * i40e_alloc_vfs
1068 1069
 * @pf: pointer to the PF structure
 * @num_alloc_vfs: number of VFs to allocate
1070
 *
1071
 * allocate VF resources
1072
 **/
M
Mitch Williams 已提交
1073
int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1074 1075 1076 1077
{
	struct i40e_vf *vfs;
	int i, ret = 0;

1078
	/* Disable interrupt 0 so we don't try to handle the VFLR. */
1079 1080
	i40e_irq_dynamic_disable_icr0(pf);

M
Mitch Williams 已提交
1081 1082 1083 1084
	/* Check to see if we're just allocating resources for extant VFs */
	if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
		ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
		if (ret) {
1085
			pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
M
Mitch Williams 已提交
1086 1087 1088
			pf->num_alloc_vfs = 0;
			goto err_iov;
		}
1089
	}
1090
	i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1091
	/* allocate memory */
1092
	vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1093 1094 1095 1096
	if (!vfs) {
		ret = -ENOMEM;
		goto err_alloc;
	}
1097
	pf->vf = vfs;
1098 1099 1100 1101 1102 1103 1104 1105 1106

	/* apply default profile */
	for (i = 0; i < num_alloc_vfs; i++) {
		vfs[i].pf = pf;
		vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
		vfs[i].vf_id = i;

		/* assign default capabilities */
		set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1107
		vfs[i].spoofchk = true;
1108
		/* VF resources get allocated during reset */
M
Mitch Williams 已提交
1109
		i40e_reset_vf(&vfs[i], false);
1110 1111 1112 1113 1114 1115 1116 1117

	}
	pf->num_alloc_vfs = num_alloc_vfs;

err_alloc:
	if (ret)
		i40e_free_vfs(pf);
err_iov:
1118
	/* Re-enable interrupt 0. */
1119
	i40e_irq_dynamic_enable_icr0(pf, false);
1120 1121 1122 1123 1124 1125 1126
	return ret;
}

#endif
/**
 * i40e_pci_sriov_enable
 * @pdev: pointer to a pci_dev structure
1127
 * @num_vfs: number of VFs to allocate
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
 *
 * Enable or change the number of VFs
 **/
static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
{
#ifdef CONFIG_PCI_IOV
	struct i40e_pf *pf = pci_get_drvdata(pdev);
	int pre_existing_vfs = pci_num_vf(pdev);
	int err = 0;

J
Jesse Brandeburg 已提交
1138
	if (test_bit(__I40E_TESTING, &pf->state)) {
1139 1140 1141 1142 1143 1144
		dev_warn(&pdev->dev,
			 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
		err = -EPERM;
		goto err_out;
	}

1145 1146 1147 1148 1149 1150
	if (pre_existing_vfs && pre_existing_vfs != num_vfs)
		i40e_free_vfs(pf);
	else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
		goto out;

	if (num_vfs > pf->num_req_vfs) {
1151 1152
		dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
			 num_vfs, pf->num_req_vfs);
1153 1154 1155 1156
		err = -EPERM;
		goto err_out;
	}

1157
	dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175
	err = i40e_alloc_vfs(pf, num_vfs);
	if (err) {
		dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
		goto err_out;
	}

out:
	return num_vfs;

err_out:
	return err;
#endif
	return 0;
}

/**
 * i40e_pci_sriov_configure
 * @pdev: pointer to a pci_dev structure
1176
 * @num_vfs: number of VFs to allocate
1177 1178 1179 1180 1181 1182 1183 1184
 *
 * Enable or change the number of VFs. Called when the user updates the number
 * of VFs in sysfs.
 **/
int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
{
	struct i40e_pf *pf = pci_get_drvdata(pdev);

1185 1186 1187 1188 1189 1190
	if (num_vfs) {
		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
			i40e_do_reset_safe(pf,
					   BIT_ULL(__I40E_PF_RESET_REQUESTED));
		}
1191
		return i40e_pci_sriov_enable(pdev, num_vfs);
1192
	}
1193

1194
	if (!pci_vfs_assigned(pf->pdev)) {
1195
		i40e_free_vfs(pf);
1196 1197
		pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
		i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1198 1199 1200 1201
	} else {
		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
		return -EINVAL;
	}
1202 1203 1204 1205 1206 1207 1208
	return 0;
}

/***********************virtual channel routines******************/

/**
 * i40e_vc_send_msg_to_vf
1209
 * @vf: pointer to the VF info
1210 1211 1212 1213 1214
 * @v_opcode: virtual channel opcode
 * @v_retval: virtual channel return value
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1215
 * send msg to VF
1216 1217 1218 1219
 **/
static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
				  u32 v_retval, u8 *msg, u16 msglen)
{
1220 1221 1222
	struct i40e_pf *pf;
	struct i40e_hw *hw;
	int abs_vf_id;
1223 1224
	i40e_status aq_ret;

1225 1226 1227 1228 1229 1230 1231 1232
	/* validate the request */
	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
		return -EINVAL;

	pf = vf->pf;
	hw = &pf->hw;
	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;

1233 1234 1235
	/* single place to detect unsuccessful return values */
	if (v_retval) {
		vf->num_invalid_msgs++;
M
Mitch Williams 已提交
1236 1237
		dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
			 vf->vf_id, v_opcode, v_retval);
1238 1239 1240 1241 1242 1243 1244 1245 1246 1247
		if (vf->num_invalid_msgs >
		    I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
			dev_err(&pf->pdev->dev,
				"Number of invalid messages exceeded for VF %d\n",
				vf->vf_id);
			dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
			set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
		}
	} else {
		vf->num_valid_msgs++;
1248 1249
		/* reset the invalid counter, if a valid message is received. */
		vf->num_invalid_msgs = 0;
1250 1251
	}

1252
	aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id,	v_opcode, v_retval,
1253
					msg, msglen, NULL);
1254
	if (aq_ret) {
M
Mitch Williams 已提交
1255 1256 1257
		dev_info(&pf->pdev->dev,
			 "Unable to send the message to VF %d aq_err %d\n",
			 vf->vf_id, pf->hw.aq.asq_last_status);
1258 1259 1260 1261 1262 1263 1264 1265
		return -EIO;
	}

	return 0;
}

/**
 * i40e_vc_send_resp_to_vf
1266
 * @vf: pointer to the VF info
1267 1268 1269
 * @opcode: operation code
 * @retval: return value
 *
1270
 * send resp msg to VF
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
 **/
static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
				   enum i40e_virtchnl_ops opcode,
				   i40e_status retval)
{
	return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
}

/**
 * i40e_vc_get_version_msg
1281
 * @vf: pointer to the VF info
1282
 *
1283
 * called from the VF to request the API version used by the PF
1284
 **/
1285
static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1286 1287 1288 1289 1290
{
	struct i40e_virtchnl_version_info info = {
		I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
	};

1291
	vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1292 1293 1294
	/* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
	if (VF_IS_V10(vf))
		info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1295 1296 1297 1298 1299 1300 1301 1302
	return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
				      I40E_SUCCESS, (u8 *)&info,
				      sizeof(struct
					     i40e_virtchnl_version_info));
}

/**
 * i40e_vc_get_vf_resources_msg
1303
 * @vf: pointer to the VF info
1304 1305 1306
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1307
 * called from the VF to request its resources
1308
 **/
1309
static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1310 1311 1312 1313 1314 1315
{
	struct i40e_virtchnl_vf_resource *vfres = NULL;
	struct i40e_pf *pf = vf->pf;
	i40e_status aq_ret = 0;
	struct i40e_vsi *vsi;
	int num_vsis = 1;
M
Mitch Williams 已提交
1316
	int len = 0;
1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332
	int ret;

	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}

	len = (sizeof(struct i40e_virtchnl_vf_resource) +
	       sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);

	vfres = kzalloc(len, GFP_KERNEL);
	if (!vfres) {
		aq_ret = I40E_ERR_NO_MEMORY;
		len = 0;
		goto err;
	}
1333 1334 1335 1336 1337 1338
	if (VF_IS_V11(vf))
		vf->driver_caps = *(u32 *)msg;
	else
		vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
				  I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
				  I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1339 1340

	vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1341
	vsi = pf->vsi[vf->lan_vsi_idx];
1342
	if (!vsi->info.pvid)
1343
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1344 1345 1346 1347 1348 1349 1350

	if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) &&
	    (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
		set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states);
	}

1351 1352
	if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) {
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF;
1353
	} else {
1354 1355 1356 1357 1358 1359 1360
		if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
		    (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ))
			vfres->vf_offload_flags |=
					I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
		else
			vfres->vf_offload_flags |=
					I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1361
	}
1362

1363 1364 1365 1366 1367 1368
	if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
		if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
			vfres->vf_offload_flags |=
				I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
	}

1369 1370 1371 1372 1373 1374 1375 1376
	if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
		if (pf->flags & I40E_FLAG_MFP_ENABLED) {
			dev_err(&pf->pdev->dev,
				"VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
				 vf->vf_id);
			ret = I40E_ERR_PARAM;
			goto err;
		}
1377
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1378
	}
1379

1380 1381 1382 1383 1384 1385
	if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
		if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
			vfres->vf_offload_flags |=
					I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
	}

1386 1387 1388
	vfres->num_vsis = num_vsis;
	vfres->num_queue_pairs = vf->num_queue_pairs;
	vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1389 1390 1391
	vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
	vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;

1392
	if (vf->lan_vsi_idx) {
M
Mitch Williams 已提交
1393 1394 1395
		vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
		vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV;
		vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1396
		/* VFs only use TC 0 */
M
Mitch Williams 已提交
1397
		vfres->vsi_res[0].qset_handle
1398
					  = le16_to_cpu(vsi->info.qs_handle[0]);
M
Mitch Williams 已提交
1399
		ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
J
Jesse Brandeburg 已提交
1400
				vf->default_lan_addr.addr);
1401 1402 1403 1404
	}
	set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);

err:
1405
	/* send the response back to the VF */
1406 1407 1408 1409 1410 1411 1412 1413 1414
	ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
				     aq_ret, (u8 *)vfres, len);

	kfree(vfres);
	return ret;
}

/**
 * i40e_vc_reset_vf_msg
1415
 * @vf: pointer to the VF info
1416 1417 1418
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1419 1420 1421
 * called from the VF to reset itself,
 * unlike other virtchnl messages, PF driver
 * doesn't send the response back to the VF
1422
 **/
M
Mitch Williams 已提交
1423
static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1424
{
M
Mitch Williams 已提交
1425 1426
	if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
		i40e_reset_vf(vf, false);
1427 1428
}

1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447
/**
 * i40e_getnum_vf_vsi_vlan_filters
 * @vsi: pointer to the vsi
 *
 * called to get the number of VLANs offloaded on this VF
 **/
static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
{
	struct i40e_mac_filter *f;
	int num_vlans = 0;

	list_for_each_entry(f, &vsi->mac_filter_list, list) {
		if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
			num_vlans++;
	}

	return num_vlans;
}

1448 1449
/**
 * i40e_vc_config_promiscuous_mode_msg
1450
 * @vf: pointer to the VF info
1451 1452 1453
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1454 1455
 * called from the VF to configure the promiscuous mode of
 * VF vsis
1456 1457 1458 1459 1460 1461 1462 1463
 **/
static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
					       u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_promisc_info *info =
	    (struct i40e_virtchnl_promisc_info *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
1464 1465
	struct i40e_mac_filter *f;
	i40e_status aq_ret = 0;
1466
	bool allmulti = false;
1467 1468 1469
	struct i40e_vsi *vsi;
	bool alluni = false;
	int aq_err = 0;
1470

1471
	vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1472 1473
	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1474 1475 1476 1477
	    !i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
		dev_err(&pf->pdev->dev,
			"VF %d doesn't meet requirements to enter promiscuous mode\n",
			vf->vf_id);
1478 1479 1480
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
1481
	/* Multicast promiscuous handling*/
1482 1483
	if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
		allmulti = true;
1484 1485 1486 1487 1488 1489 1490 1491

	if (vf->port_vlan_id) {
		aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
							    allmulti,
							    vf->port_vlan_id,
							    NULL);
	} else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
		list_for_each_entry(f, &vsi->mac_filter_list, list) {
1492 1493 1494 1495 1496 1497 1498
			if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
				continue;
			aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
								    vsi->seid,
								    allmulti,
								    f->vlan,
								    NULL);
1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579
			aq_err = pf->hw.aq.asq_last_status;
			if (aq_ret) {
				dev_err(&pf->pdev->dev,
					"Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
					f->vlan,
					i40e_stat_str(&pf->hw, aq_ret),
					i40e_aq_str(&pf->hw, aq_err));
				break;
			}
		}
	} else {
		aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
							       allmulti, NULL);
		aq_err = pf->hw.aq.asq_last_status;
		if (aq_ret) {
			dev_err(&pf->pdev->dev,
				"VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
				vf->vf_id,
				i40e_stat_str(&pf->hw, aq_ret),
				i40e_aq_str(&pf->hw, aq_err));
			goto error_param_int;
		}
	}

	if (!aq_ret) {
		dev_info(&pf->pdev->dev,
			 "VF %d successfully set multicast promiscuous mode\n",
			 vf->vf_id);
		if (allmulti)
			set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
		else
			clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
	}

	if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
		alluni = true;
	if (vf->port_vlan_id) {
		aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
							    alluni,
							    vf->port_vlan_id,
							    NULL);
	} else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
		list_for_each_entry(f, &vsi->mac_filter_list, list) {
			aq_ret = 0;
			if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
				aq_ret =
				i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
								   vsi->seid,
								   alluni,
								   f->vlan,
								   NULL);
				aq_err = pf->hw.aq.asq_last_status;
			if (aq_ret)
				dev_err(&pf->pdev->dev,
					"Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
					f->vlan,
					i40e_stat_str(&pf->hw, aq_ret),
					i40e_aq_str(&pf->hw, aq_err));
		}
	} else {
		aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid,
							     allmulti, NULL);
		aq_err = pf->hw.aq.asq_last_status;
		if (aq_ret)
			dev_err(&pf->pdev->dev,
				"VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
				vf->vf_id, info->flags,
				i40e_stat_str(&pf->hw, aq_ret),
				i40e_aq_str(&pf->hw, aq_err));
	}

error_param_int:
	if (!aq_ret) {
		dev_info(&pf->pdev->dev,
			 "VF %d successfully set unicast promiscuous mode\n",
			 vf->vf_id);
		if (alluni)
			set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
		else
			clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
	}
1580 1581

error_param:
1582
	/* send the response to the VF */
1583 1584 1585 1586 1587 1588 1589
	return i40e_vc_send_resp_to_vf(vf,
				       I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
				       aq_ret);
}

/**
 * i40e_vc_config_queues_msg
1590
 * @vf: pointer to the VF info
1591 1592 1593
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1594
 * called from the VF to configure the rx/tx
1595 1596 1597 1598 1599 1600 1601
 * queues
 **/
static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vsi_queue_config_info *qci =
	    (struct i40e_virtchnl_vsi_queue_config_info *)msg;
	struct i40e_virtchnl_queue_pair_info *qpi;
1602
	struct i40e_pf *pf = vf->pf;
1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635
	u16 vsi_id, vsi_queue_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	vsi_id = qci->vsi_id;
	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
	for (i = 0; i < qci->num_queue_pairs; i++) {
		qpi = &qci->qpair[i];
		vsi_queue_id = qpi->txq.queue_id;
		if ((qpi->txq.vsi_id != vsi_id) ||
		    (qpi->rxq.vsi_id != vsi_id) ||
		    (qpi->rxq.queue_id != vsi_queue_id) ||
		    !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}

		if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
					     &qpi->rxq) ||
		    i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
					     &qpi->txq)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}
	}
1636
	/* set vsi num_queue_pairs in use to num configured by VF */
1637
	pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1638 1639

error_param:
1640
	/* send the response to the VF */
1641 1642 1643 1644 1645 1646
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_config_irq_map_msg
1647
 * @vf: pointer to the VF info
1648 1649 1650
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1651
 * called from the VF to configure the irq to
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682
 * queue map
 **/
static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_irq_map_info *irqmap_info =
	    (struct i40e_virtchnl_irq_map_info *)msg;
	struct i40e_virtchnl_vector_map *map;
	u16 vsi_id, vsi_queue_id, vector_id;
	i40e_status aq_ret = 0;
	unsigned long tempmap;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < irqmap_info->num_vectors; i++) {
		map = &irqmap_info->vecmap[i];

		vector_id = map->vector_id;
		vsi_id = map->vsi_id;
		/* validate msg params */
		if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
		    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}

		/* lookout for the invalid queue index */
		tempmap = map->rxq_map;
1683
		for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1684 1685 1686 1687 1688 1689 1690 1691
			if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
						      vsi_queue_id)) {
				aq_ret = I40E_ERR_PARAM;
				goto error_param;
			}
		}

		tempmap = map->txq_map;
1692
		for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1693 1694 1695 1696 1697 1698 1699 1700 1701 1702
			if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
						      vsi_queue_id)) {
				aq_ret = I40E_ERR_PARAM;
				goto error_param;
			}
		}

		i40e_config_irq_link_list(vf, vsi_id, map);
	}
error_param:
1703
	/* send the response to the VF */
1704 1705 1706 1707 1708 1709
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
				       aq_ret);
}

/**
 * i40e_vc_enable_queues_msg
1710
 * @vf: pointer to the VF info
1711 1712 1713
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1714
 * called from the VF to enable all or specific queue(s)
1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737
 **/
static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	u16 vsi_id = vqs->vsi_id;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
1738 1739

	if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
M
Mitch Williams 已提交
1740
		aq_ret = I40E_ERR_TIMEOUT;
1741
error_param:
1742
	/* send the response to the VF */
1743 1744 1745 1746 1747 1748
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_disable_queues_msg
1749
 * @vf: pointer to the VF info
1750 1751 1752
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1753
 * called from the VF to disable all or specific
1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776
 * queue(s)
 **/
static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
1777 1778

	if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
M
Mitch Williams 已提交
1779
		aq_ret = I40E_ERR_TIMEOUT;
1780 1781

error_param:
1782
	/* send the response to the VF */
1783 1784 1785 1786 1787 1788
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_get_stats_msg
1789
 * @vf: pointer to the VF info
1790 1791 1792
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
1793
 * called from the VF to get vsi stats
1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815
 **/
static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_eth_stats stats;
	i40e_status aq_ret = 0;
	struct i40e_vsi *vsi;

	memset(&stats, 0, sizeof(struct i40e_eth_stats));

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

1816
	vsi = pf->vsi[vf->lan_vsi_idx];
1817 1818 1819 1820 1821
	if (!vsi) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
	i40e_update_eth_stats(vsi);
1822
	stats = vsi->eth_stats;
1823 1824

error_param:
1825
	/* send the response back to the VF */
1826 1827 1828 1829
	return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
				      (u8 *)&stats, sizeof(stats));
}

1830 1831
/**
 * i40e_check_vf_permission
1832
 * @vf: pointer to the VF info
1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848
 * @macaddr: pointer to the MAC Address being checked
 *
 * Check if the VF has permission to add or delete unicast MAC address
 * filters and return error code -EPERM if not.  Then check if the
 * address filter requested is broadcast or zero and if so return
 * an invalid MAC address error code.
 **/
static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
{
	struct i40e_pf *pf = vf->pf;
	int ret = 0;

	if (is_broadcast_ether_addr(macaddr) ||
		   is_zero_ether_addr(macaddr)) {
		dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
		ret = I40E_ERR_INVALID_MAC_ADDR;
1849 1850
	} else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
		   !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1851 1852 1853
		/* If the host VMM administrator has set the VF MAC address
		 * administratively via the ndo_set_vf_mac command then deny
		 * permission to the VF to add or delete unicast MAC addresses.
1854 1855
		 * The VF may request to set the MAC address filter already
		 * assigned to it so do not return an error in that case.
1856 1857 1858 1859 1860 1861 1862 1863
		 */
		dev_err(&pf->pdev->dev,
			"VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
		ret = -EPERM;
	}
	return ret;
}

1864 1865
/**
 * i40e_vc_add_mac_addr_msg
1866
 * @vf: pointer to the VF info
1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * add guest mac address filter
 **/
static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_ether_addr_list *al =
	    (struct i40e_virtchnl_ether_addr_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = al->vsi_id;
1879
	i40e_status ret = 0;
1880 1881 1882 1883 1884
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1885
		ret = I40E_ERR_PARAM;
1886 1887 1888 1889
		goto error_param;
	}

	for (i = 0; i < al->num_elements; i++) {
1890 1891
		ret = i40e_check_vf_permission(vf, al->list[i].addr);
		if (ret)
1892 1893
			goto error_param;
	}
1894
	vsi = pf->vsi[vf->lan_vsi_idx];
1895

K
Kiran Patil 已提交
1896 1897 1898 1899 1900
	/* Lock once, because all function inside for loop accesses VSI's
	 * MAC filter list which needs to be protected using same lock.
	 */
	spin_lock_bh(&vsi->mac_filter_list_lock);

1901 1902 1903 1904 1905
	/* add new addresses to the list */
	for (i = 0; i < al->num_elements; i++) {
		struct i40e_mac_filter *f;

		f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1906
		if (!f) {
1907 1908 1909 1910 1911 1912 1913 1914 1915 1916
			if (i40e_is_vsi_in_vlan(vsi))
				f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
							 true, false);
			else
				f = i40e_add_filter(vsi, al->list[i].addr, -1,
						    true, false);
		}

		if (!f) {
			dev_err(&pf->pdev->dev,
1917 1918
				"Unable to add MAC filter %pM for VF %d\n",
				 al->list[i].addr, vf->vf_id);
1919
			ret = I40E_ERR_PARAM;
K
Kiran Patil 已提交
1920
			spin_unlock_bh(&vsi->mac_filter_list_lock);
1921 1922 1923
			goto error_param;
		}
	}
K
Kiran Patil 已提交
1924
	spin_unlock_bh(&vsi->mac_filter_list_lock);
1925 1926

	/* program the updated filter list */
M
Mitch Williams 已提交
1927 1928 1929 1930
	ret = i40e_sync_vsi_filters(vsi);
	if (ret)
		dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
			vf->vf_id, ret);
1931 1932

error_param:
1933
	/* send the response to the VF */
1934
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1935
				       ret);
1936 1937 1938 1939
}

/**
 * i40e_vc_del_mac_addr_msg
1940
 * @vf: pointer to the VF info
1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * remove guest mac address filter
 **/
static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_ether_addr_list *al =
	    (struct i40e_virtchnl_ether_addr_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = al->vsi_id;
1953
	i40e_status ret = 0;
1954 1955 1956 1957 1958
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1959
		ret = I40E_ERR_PARAM;
1960 1961
		goto error_param;
	}
1962 1963

	for (i = 0; i < al->num_elements; i++) {
1964 1965
		if (is_broadcast_ether_addr(al->list[i].addr) ||
		    is_zero_ether_addr(al->list[i].addr)) {
1966 1967
			dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
				al->list[i].addr, vf->vf_id);
1968
			ret = I40E_ERR_INVALID_MAC_ADDR;
1969
			goto error_param;
1970
		}
1971
	}
1972
	vsi = pf->vsi[vf->lan_vsi_idx];
1973

K
Kiran Patil 已提交
1974
	spin_lock_bh(&vsi->mac_filter_list_lock);
1975 1976
	/* delete addresses from the list */
	for (i = 0; i < al->num_elements; i++)
1977 1978 1979 1980 1981 1982
		if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
			ret = I40E_ERR_INVALID_MAC_ADDR;
			spin_unlock_bh(&vsi->mac_filter_list_lock);
			goto error_param;
		}

K
Kiran Patil 已提交
1983
	spin_unlock_bh(&vsi->mac_filter_list_lock);
1984 1985

	/* program the updated filter list */
M
Mitch Williams 已提交
1986 1987 1988 1989
	ret = i40e_sync_vsi_filters(vsi);
	if (ret)
		dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
			vf->vf_id, ret);
1990 1991

error_param:
1992
	/* send the response to the VF */
1993
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1994
				       ret);
1995 1996 1997 1998
}

/**
 * i40e_vc_add_vlan_msg
1999
 * @vf: pointer to the VF info
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * program guest vlan id
 **/
static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vlan_filter_list *vfl =
	    (struct i40e_virtchnl_vlan_filter_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vfl->vsi_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
			aq_ret = I40E_ERR_PARAM;
			dev_err(&pf->pdev->dev,
				"invalid VF VLAN id %d\n", vfl->vlan_id[i]);
			goto error_param;
		}
	}
2030
	vsi = pf->vsi[vf->lan_vsi_idx];
2031 2032 2033 2034 2035 2036 2037 2038 2039
	if (vsi->info.pvid) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	i40e_vlan_stripping_enable(vsi);
	for (i = 0; i < vfl->num_elements; i++) {
		/* add new VLAN filter */
		int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
J
Jesse Brandeburg 已提交
2040

2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051
		if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
			i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
							   true,
							   vfl->vlan_id[i],
							   NULL);
		if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
			i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
							   true,
							   vfl->vlan_id[i],
							   NULL);

2052 2053
		if (ret)
			dev_err(&pf->pdev->dev,
2054 2055
				"Unable to add VLAN filter %d for VF %d, error %d\n",
				vfl->vlan_id[i], vf->vf_id, ret);
2056 2057 2058
	}

error_param:
2059
	/* send the response to the VF */
2060 2061 2062 2063 2064
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
}

/**
 * i40e_vc_remove_vlan_msg
2065
 * @vf: pointer to the VF info
2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * remove programmed guest vlan id
 **/
static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vlan_filter_list *vfl =
	    (struct i40e_virtchnl_vlan_filter_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vfl->vsi_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}
	}

2095
	vsi = pf->vsi[vf->lan_vsi_idx];
2096 2097 2098 2099 2100 2101 2102
	if (vsi->info.pvid) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
J
Jesse Brandeburg 已提交
2103

2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114
		if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
			i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
							   false,
							   vfl->vlan_id[i],
							   NULL);
		if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
			i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
							   false,
							   vfl->vlan_id[i],
							   NULL);

2115 2116
		if (ret)
			dev_err(&pf->pdev->dev,
2117 2118
				"Unable to delete VLAN filter %d for VF %d, error %d\n",
				vfl->vlan_id[i], vf->vf_id, ret);
2119 2120 2121
	}

error_param:
2122
	/* send the response to the VF */
2123 2124 2125
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
}

2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191
/**
 * i40e_vc_iwarp_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF for the iwarp msgs
 **/
static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_pf *pf = vf->pf;
	int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
				     msg, msglen);

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
				       aq_ret);
}

/**
 * i40e_vc_iwarp_qvmap_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 * @config: config qvmap or release it
 *
 * called from the VF for the iwarp msgs
 **/
static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
				   bool config)
{
	struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
				(struct i40e_virtchnl_iwarp_qvlist_info *)msg;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (config) {
		if (i40e_config_iwarp_qvlist(vf, qvlist_info))
			aq_ret = I40E_ERR_PARAM;
	} else {
		i40e_release_iwarp_qvlist(vf);
	}

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf,
			       config ? I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP :
			       I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP,
			       aq_ret);
}

2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324
/**
 * i40e_vc_config_rss_key
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * Configure the VF's RSS key
 **/
static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_rss_key *vrk =
		(struct i40e_virtchnl_rss_key *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vrk->vsi_id;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
	    (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}

	vsi = pf->vsi[vf->lan_vsi_idx];
	aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
err:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY,
				       aq_ret);
}

/**
 * i40e_vc_config_rss_lut
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * Configure the VF's RSS LUT
 **/
static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_rss_lut *vrl =
		(struct i40e_virtchnl_rss_lut *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vrl->vsi_id;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
	    (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}

	vsi = pf->vsi[vf->lan_vsi_idx];
	aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
	/* send the response to the VF */
err:
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT,
				       aq_ret);
}

/**
 * i40e_vc_get_rss_hena
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * Return the RSS HENA bits allowed by the hardware
 **/
static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_rss_hena *vrh = NULL;
	struct i40e_pf *pf = vf->pf;
	i40e_status aq_ret = 0;
	int len = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}
	len = sizeof(struct i40e_virtchnl_rss_hena);

	vrh = kzalloc(len, GFP_KERNEL);
	if (!vrh) {
		aq_ret = I40E_ERR_NO_MEMORY;
		len = 0;
		goto err;
	}
	vrh->hena = i40e_pf_get_default_rss_hena(pf);
err:
	/* send the response back to the VF */
	aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS,
					aq_ret, (u8 *)vrh, len);
	return aq_ret;
}

/**
 * i40e_vc_set_rss_hena
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * Set the RSS HENA bits for the VF
 **/
static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_rss_hena *vrh =
		(struct i40e_virtchnl_rss_hena *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}
	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
			  (u32)(vrh->hena >> 32));

	/* send the response to the VF */
err:
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA,
				       aq_ret);
}

2325 2326
/**
 * i40e_vc_validate_vf_msg
2327
 * @vf: pointer to the VF info
2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 * @msghndl: msg handle
 *
 * validate msg
 **/
static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
				   u32 v_retval, u8 *msg, u16 msglen)
{
	bool err_msg_format = false;
	int valid_len;

	/* Check if VF is disabled. */
	if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
		return I40E_ERR_PARAM;

	/* Validate message length. */
	switch (v_opcode) {
	case I40E_VIRTCHNL_OP_VERSION:
		valid_len = sizeof(struct i40e_virtchnl_version_info);
		break;
	case I40E_VIRTCHNL_OP_RESET_VF:
		valid_len = 0;
		break;
2352 2353 2354 2355 2356 2357
	case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
		if (VF_IS_V11(vf))
			valid_len = sizeof(u32);
		else
			valid_len = 0;
		break;
2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419
	case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
		valid_len = sizeof(struct i40e_virtchnl_txq_info);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
		valid_len = sizeof(struct i40e_virtchnl_rxq_info);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
		valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_vsi_queue_config_info *vqc =
			    (struct i40e_virtchnl_vsi_queue_config_info *)msg;
			valid_len += (vqc->num_queue_pairs *
				      sizeof(struct
					     i40e_virtchnl_queue_pair_info));
			if (vqc->num_queue_pairs == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
		valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_irq_map_info *vimi =
			    (struct i40e_virtchnl_irq_map_info *)msg;
			valid_len += (vimi->num_vectors *
				      sizeof(struct i40e_virtchnl_vector_map));
			if (vimi->num_vectors == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
		valid_len = sizeof(struct i40e_virtchnl_queue_select);
		break;
	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
		valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_ether_addr_list *veal =
			    (struct i40e_virtchnl_ether_addr_list *)msg;
			valid_len += veal->num_elements *
			    sizeof(struct i40e_virtchnl_ether_addr);
			if (veal->num_elements == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_ADD_VLAN:
	case I40E_VIRTCHNL_OP_DEL_VLAN:
		valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_vlan_filter_list *vfl =
			    (struct i40e_virtchnl_vlan_filter_list *)msg;
			valid_len += vfl->num_elements * sizeof(u16);
			if (vfl->num_elements == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
		valid_len = sizeof(struct i40e_virtchnl_promisc_info);
		break;
	case I40E_VIRTCHNL_OP_GET_STATS:
		valid_len = sizeof(struct i40e_virtchnl_queue_select);
		break;
2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445
	case I40E_VIRTCHNL_OP_IWARP:
		/* These messages are opaque to us and will be validated in
		 * the RDMA client code. We just need to check for nonzero
		 * length. The firmware will enforce max length restrictions.
		 */
		if (msglen)
			valid_len = msglen;
		else
			err_msg_format = true;
		break;
	case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
		valid_len = 0;
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
		valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_iwarp_qvlist_info *qv =
				(struct i40e_virtchnl_iwarp_qvlist_info *)msg;
			if (qv->num_vectors == 0) {
				err_msg_format = true;
				break;
			}
			valid_len += ((qv->num_vectors - 1) *
				sizeof(struct i40e_virtchnl_iwarp_qv_info));
		}
		break;
2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475
	case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
		valid_len = sizeof(struct i40e_virtchnl_rss_key);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_rss_key *vrk =
				(struct i40e_virtchnl_rss_key *)msg;
			if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
				err_msg_format = true;
				break;
			}
			valid_len += vrk->key_len - 1;
		}
		break;
	case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
		valid_len = sizeof(struct i40e_virtchnl_rss_lut);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_rss_lut *vrl =
				(struct i40e_virtchnl_rss_lut *)msg;
			if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
				err_msg_format = true;
				break;
			}
			valid_len += vrl->lut_entries - 1;
		}
		break;
	case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
		valid_len = 0;
		break;
	case I40E_VIRTCHNL_OP_SET_RSS_HENA:
		valid_len = sizeof(struct i40e_virtchnl_rss_hena);
		break;
2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492
	/* These are always errors coming from the VF. */
	case I40E_VIRTCHNL_OP_EVENT:
	case I40E_VIRTCHNL_OP_UNKNOWN:
	default:
		return -EPERM;
	}
	/* few more checks */
	if ((valid_len != msglen) || (err_msg_format)) {
		i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
		return -EINVAL;
	} else {
		return 0;
	}
}

/**
 * i40e_vc_process_vf_msg
2493 2494
 * @pf: pointer to the PF structure
 * @vf_id: source VF id
2495 2496 2497 2498 2499
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 * @msghndl: msg handle
 *
 * called from the common aeq/arq handler to
2500
 * process request from VF
2501 2502 2503 2504 2505
 **/
int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
			   u32 v_retval, u8 *msg, u16 msglen)
{
	struct i40e_hw *hw = &pf->hw;
2506
	unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
2507
	struct i40e_vf *vf;
2508 2509 2510
	int ret;

	pf->vf_aq_requests++;
2511
	if (local_vf_id >= pf->num_alloc_vfs)
2512
		return -EINVAL;
2513
	vf = &(pf->vf[local_vf_id]);
2514 2515 2516 2517
	/* perform basic checks on the msg */
	ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);

	if (ret) {
2518
		dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2519
			local_vf_id, v_opcode, msglen);
2520 2521
		return ret;
	}
2522

2523 2524
	switch (v_opcode) {
	case I40E_VIRTCHNL_OP_VERSION:
2525
		ret = i40e_vc_get_version_msg(vf, msg);
2526 2527
		break;
	case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2528
		ret = i40e_vc_get_vf_resources_msg(vf, msg);
2529 2530
		break;
	case I40E_VIRTCHNL_OP_RESET_VF:
M
Mitch Williams 已提交
2531 2532
		i40e_vc_reset_vf_msg(vf);
		ret = 0;
2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544
		break;
	case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
		ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
		ret = i40e_vc_config_queues_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
		ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
		ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
M
Mitch Williams 已提交
2545
		i40e_vc_notify_vf_link_state(vf);
2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564
		break;
	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
		ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
		ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
		ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ADD_VLAN:
		ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_DEL_VLAN:
		ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_GET_STATS:
		ret = i40e_vc_get_stats_msg(vf, msg, msglen);
		break;
2565 2566 2567 2568 2569 2570 2571 2572 2573
	case I40E_VIRTCHNL_OP_IWARP:
		ret = i40e_vc_iwarp_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
		ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
		break;
	case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
		ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
		break;
2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586
	case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
		ret = i40e_vc_config_rss_key(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
		ret = i40e_vc_config_rss_lut(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
		ret = i40e_vc_get_rss_hena(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_SET_RSS_HENA:
		ret = i40e_vc_set_rss_hena(vf, msg, msglen);
		break;

2587 2588
	case I40E_VIRTCHNL_OP_UNKNOWN:
	default:
2589
		dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2590
			v_opcode, local_vf_id);
2591 2592 2593 2594 2595 2596 2597 2598 2599 2600
		ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
					      I40E_ERR_NOT_IMPLEMENTED);
		break;
	}

	return ret;
}

/**
 * i40e_vc_process_vflr_event
2601
 * @pf: pointer to the PF structure
2602 2603
 *
 * called from the vlfr irq handler to
2604
 * free up VF resources and state variables
2605 2606 2607 2608 2609 2610 2611 2612 2613 2614
 **/
int i40e_vc_process_vflr_event(struct i40e_pf *pf)
{
	u32 reg, reg_idx, bit_idx, vf_id;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;

	if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
		return 0;

M
Mitch Williams 已提交
2615 2616 2617 2618 2619
	/* Re-enable the VFLR interrupt cause here, before looking for which
	 * VF got reset. Otherwise, if another VF gets a reset while the
	 * first one is being processed, that interrupt will be lost, and
	 * that VF will be stuck in reset forever.
	 */
2620 2621 2622 2623 2624
	reg = rd32(hw, I40E_PFINT_ICR0_ENA);
	reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
	wr32(hw, I40E_PFINT_ICR0_ENA, reg);
	i40e_flush(hw);

2625 2626 2627 2628
	clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
	for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
		reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
		bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2629
		/* read GLGEN_VFLRSTAT register to find out the flr VFs */
2630 2631
		vf = &pf->vf[vf_id];
		reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2632
		if (reg & BIT(bit_idx))
2633
			/* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
2634
			i40e_reset_vf(vf, true);
2635 2636 2637 2638 2639 2640 2641 2642
	}

	return 0;
}

/**
 * i40e_ndo_set_vf_mac
 * @netdev: network interface device structure
2643
 * @vf_id: VF identifier
2644 2645
 * @mac: mac address
 *
2646
 * program VF mac address
2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665
 **/
int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_mac_filter *f;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev,
			"Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	vf = &(pf->vf[vf_id]);
2666
	vsi = pf->vsi[vf->lan_vsi_idx];
2667
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2668 2669 2670
		dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
			vf_id);
		ret = -EAGAIN;
2671 2672 2673
		goto error_param;
	}

2674
	if (is_multicast_ether_addr(mac)) {
2675
		dev_err(&pf->pdev->dev,
2676
			"Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2677 2678 2679 2680
		ret = -EINVAL;
		goto error_param;
	}

K
Kiran Patil 已提交
2681 2682 2683 2684 2685
	/* Lock once because below invoked function add/del_filter requires
	 * mac_filter_list_lock to be held
	 */
	spin_lock_bh(&vsi->mac_filter_list_lock);

2686
	/* delete the temporary mac address */
2687 2688 2689 2690
	if (!is_zero_ether_addr(vf->default_lan_addr.addr))
		i40e_del_filter(vsi, vf->default_lan_addr.addr,
				vf->port_vlan_id ? vf->port_vlan_id : -1,
				true, false);
2691

2692 2693 2694 2695 2696
	/* Delete all the filters for this VSI - we're going to kill it
	 * anyway.
	 */
	list_for_each_entry(f, &vsi->mac_filter_list, list)
		i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2697

K
Kiran Patil 已提交
2698 2699
	spin_unlock_bh(&vsi->mac_filter_list_lock);

2700 2701
	dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
	/* program mac filter */
J
Jesse Brandeburg 已提交
2702
	if (i40e_sync_vsi_filters(vsi)) {
2703 2704 2705 2706
		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
		ret = -EIO;
		goto error_param;
	}
2707
	ether_addr_copy(vf->default_lan_addr.addr, mac);
2708
	vf->pf_set_mac = true;
2709 2710
	/* Force the VF driver stop so it has to reload with new MAC address */
	i40e_vc_disable_vf(pf, vf);
2711 2712 2713 2714 2715 2716 2717 2718 2719
	dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");

error_param:
	return ret;
}

/**
 * i40e_ndo_set_vf_port_vlan
 * @netdev: network interface device structure
2720
 * @vf_id: VF identifier
2721 2722 2723
 * @vlan_id: mac address
 * @qos: priority setting
 *
2724
 * program VF vlan id and/or qos
2725 2726 2727 2728
 **/
int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
			      int vf_id, u16 vlan_id, u8 qos)
{
2729
	u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2730 2731
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
K
Kiran Patil 已提交
2732
	bool is_vsi_in_vlan = false;
2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750
	struct i40e_vsi *vsi;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_pvid;
	}

	if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
		dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
		ret = -EINVAL;
		goto error_pvid;
	}

	vf = &(pf->vf[vf_id]);
2751
	vsi = pf->vsi[vf->lan_vsi_idx];
2752
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2753 2754 2755
		dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
			vf_id);
		ret = -EAGAIN;
2756 2757 2758
		goto error_pvid;
	}

2759
	if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2760 2761 2762
		/* duplicate request, so just return success */
		goto error_pvid;

K
Kiran Patil 已提交
2763 2764 2765 2766 2767
	spin_lock_bh(&vsi->mac_filter_list_lock);
	is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
	spin_unlock_bh(&vsi->mac_filter_list_lock);

	if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2768 2769 2770
		dev_err(&pf->pdev->dev,
			"VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
			vf_id);
2771 2772 2773 2774 2775
		/* Administrator Error - knock the VF offline until he does
		 * the right thing by reconfiguring his network correctly
		 * and then reloading the VF driver.
		 */
		i40e_vc_disable_vf(pf, vf);
M
Mitch Williams 已提交
2776 2777
		/* During reset the VF got a new VSI, so refresh the pointer. */
		vsi = pf->vsi[vf->lan_vsi_idx];
2778
	}
2779

2780 2781
	/* Check for condition where there was already a port VLAN ID
	 * filter set and now it is being deleted by setting it to zero.
2782 2783
	 * Additionally check for the condition where there was a port
	 * VLAN but now there is a new and different port VLAN being set.
2784 2785 2786 2787
	 * Before deleting all the old VLAN filters we must add new ones
	 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
	 * MAC addresses deleted.
	 */
2788
	if ((!(vlan_id || qos) ||
2789
	    vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2790
	    vsi->info.pvid)
2791 2792
		ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);

2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803
	if (vsi->info.pvid) {
		/* kill old VLAN */
		ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
					       VLAN_VID_MASK));
		if (ret) {
			dev_info(&vsi->back->pdev->dev,
				 "remove VLAN failed, ret=%d, aq_err=%d\n",
				 ret, pf->hw.aq.asq_last_status);
		}
	}
	if (vlan_id || qos)
2804
		ret = i40e_vsi_add_pvid(vsi, vlanprio);
2805
	else
G
Greg Rose 已提交
2806
		i40e_vsi_remove_pvid(vsi);
2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819

	if (vlan_id) {
		dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
			 vlan_id, qos, vf_id);

		/* add new VLAN filter */
		ret = i40e_vsi_add_vlan(vsi, vlan_id);
		if (ret) {
			dev_info(&vsi->back->pdev->dev,
				 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
				 vsi->back->hw.aq.asq_last_status);
			goto error_pvid;
		}
2820 2821 2822 2823
		/* Kill non-vlan MAC filters - ignore error return since
		 * there might not be any non-vlan MAC filters.
		 */
		i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2824 2825 2826 2827 2828 2829
	}

	if (ret) {
		dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
		goto error_pvid;
	}
G
Greg Rose 已提交
2830 2831 2832 2833
	/* The Port VLAN needs to be saved across resets the same as the
	 * default LAN MAC address.
	 */
	vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2834 2835 2836 2837 2838 2839
	ret = 0;

error_pvid:
	return ret;
}

2840 2841
#define I40E_BW_CREDIT_DIVISOR 50     /* 50Mbps per BW credit */
#define I40E_MAX_BW_INACTIVE_ACCUM 4  /* device can accumulate 4 credits max */
2842 2843 2844
/**
 * i40e_ndo_set_vf_bw
 * @netdev: network interface device structure
2845 2846
 * @vf_id: VF identifier
 * @tx_rate: Tx rate
2847
 *
2848
 * configure VF Tx rate
2849
 **/
2850 2851
int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
		       int max_tx_rate)
2852
{
2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_vsi *vsi;
	struct i40e_vf *vf;
	int speed = 0;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
		ret = -EINVAL;
		goto error;
	}

2867
	if (min_tx_rate) {
2868
		dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2869 2870 2871 2872
			min_tx_rate, vf_id);
		return -EINVAL;
	}

2873
	vf = &(pf->vf[vf_id]);
2874
	vsi = pf->vsi[vf->lan_vsi_idx];
2875
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2876 2877 2878
		dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
			vf_id);
		ret = -EAGAIN;
2879 2880 2881 2882 2883 2884 2885
		goto error;
	}

	switch (pf->hw.phy.link_info.link_speed) {
	case I40E_LINK_SPEED_40GB:
		speed = 40000;
		break;
2886 2887 2888
	case I40E_LINK_SPEED_20GB:
		speed = 20000;
		break;
2889 2890 2891 2892 2893 2894 2895 2896 2897 2898
	case I40E_LINK_SPEED_10GB:
		speed = 10000;
		break;
	case I40E_LINK_SPEED_1GB:
		speed = 1000;
		break;
	default:
		break;
	}

2899
	if (max_tx_rate > speed) {
2900
		dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2901
			max_tx_rate, vf->vf_id);
2902 2903 2904 2905
		ret = -EINVAL;
		goto error;
	}

2906 2907 2908 2909 2910
	if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
		dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
		max_tx_rate = 50;
	}

2911
	/* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2912 2913 2914
	ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
					  max_tx_rate / I40E_BW_CREDIT_DIVISOR,
					  I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2915
	if (ret) {
2916
		dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2917 2918 2919 2920
			ret);
		ret = -EIO;
		goto error;
	}
2921
	vf->tx_rate = max_tx_rate;
2922 2923
error:
	return ret;
2924 2925 2926 2927 2928
}

/**
 * i40e_ndo_get_vf_config
 * @netdev: network interface device structure
2929 2930
 * @vf_id: VF identifier
 * @ivi: VF configuration structure
2931
 *
2932
 * return VF configuration
2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951
 **/
int i40e_ndo_get_vf_config(struct net_device *netdev,
			   int vf_id, struct ifla_vf_info *ivi)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	vf = &(pf->vf[vf_id]);
	/* first vsi is always the LAN vsi */
2952
	vsi = pf->vsi[vf->lan_vsi_idx];
2953
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2954 2955 2956
		dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
			vf_id);
		ret = -EAGAIN;
2957 2958 2959 2960 2961
		goto error_param;
	}

	ivi->vf = vf_id;

J
Jesse Brandeburg 已提交
2962
	ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2963

2964 2965
	ivi->max_tx_rate = vf->tx_rate;
	ivi->min_tx_rate = 0;
2966 2967 2968
	ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
	ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
		   I40E_VLAN_PRIORITY_SHIFT;
2969 2970 2971 2972 2973 2974
	if (vf->link_forced == false)
		ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
	else if (vf->link_up == true)
		ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
	else
		ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2975
	ivi->spoofchk = vf->spoofchk;
2976 2977 2978 2979 2980
	ret = 0;

error_param:
	return ret;
}
M
Mitch Williams 已提交
2981 2982 2983 2984

/**
 * i40e_ndo_set_vf_link_state
 * @netdev: network interface device structure
2985
 * @vf_id: VF identifier
M
Mitch Williams 已提交
2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996
 * @link: required link state
 *
 * Set the link state of a specified VF, regardless of physical link state
 **/
int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_virtchnl_pf_event pfe;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;
2997
	int abs_vf_id;
M
Mitch Williams 已提交
2998 2999 3000 3001 3002 3003 3004 3005 3006 3007
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_out;
	}

	vf = &pf->vf[vf_id];
3008
	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
M
Mitch Williams 已提交
3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037

	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;

	switch (link) {
	case IFLA_VF_LINK_STATE_AUTO:
		vf->link_forced = false;
		pfe.event_data.link_event.link_status =
			pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
		pfe.event_data.link_event.link_speed =
			pf->hw.phy.link_info.link_speed;
		break;
	case IFLA_VF_LINK_STATE_ENABLE:
		vf->link_forced = true;
		vf->link_up = true;
		pfe.event_data.link_event.link_status = true;
		pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
		break;
	case IFLA_VF_LINK_STATE_DISABLE:
		vf->link_forced = true;
		vf->link_up = false;
		pfe.event_data.link_event.link_status = false;
		pfe.event_data.link_event.link_speed = 0;
		break;
	default:
		ret = -EINVAL;
		goto error_out;
	}
	/* Notify the VF of its new link state */
3038
	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
M
Mitch Williams 已提交
3039 3040 3041 3042 3043
			       0, (u8 *)&pfe, sizeof(pfe), NULL);

error_out:
	return ret;
}
3044 3045 3046 3047

/**
 * i40e_ndo_set_vf_spoofchk
 * @netdev: network interface device structure
3048
 * @vf_id: VF identifier
3049 3050 3051 3052
 * @enable: flag to enable or disable feature
 *
 * Enable or disable VF spoof checking
 **/
3053
int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_vsi_context ctxt;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto out;
	}

	vf = &(pf->vf[vf_id]);
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	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
			vf_id);
		ret = -EAGAIN;
		goto out;
	}
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	if (enable == vf->spoofchk)
		goto out;

	vf->spoofchk = enable;
	memset(&ctxt, 0, sizeof(ctxt));
3083
	ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
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	ctxt.pf_num = pf->hw.pf_id;
	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
	if (enable)
G
Greg Rose 已提交
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		ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
					I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
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	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
	if (ret) {
		dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
			ret);
		ret = -EIO;
	}
out:
	return ret;
}
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/**
 * i40e_ndo_set_vf_trust
 * @netdev: network interface device structure of the pf
 * @vf_id: VF identifier
 * @setting: trust setting
 *
 * Enable or disable VF trust setting
 **/
int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		return -EINVAL;
	}

	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
		dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
		return -EINVAL;
	}

	vf = &pf->vf[vf_id];

	if (!vf)
		return -EINVAL;
	if (setting == vf->trusted)
		goto out;

	vf->trusted = setting;
	i40e_vc_notify_vf_reset(vf);
	i40e_reset_vf(vf, false);
	dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
		 vf_id, setting ? "" : "un");
out:
	return ret;
}