/** * i40e_vc_vf_broadcast * @pf: pointer to the PF structure * @v_opcode: operation code * @v_retval: return value * @msg: pointer to the msg buffer * @msglen: msg length * * send a message to all VFs on a given PF
**/ staticvoid i40e_vc_vf_broadcast(struct i40e_pf *pf, enum virtchnl_ops v_opcode, int 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 + (int)hw->func_caps.vf_base_id; /* Not all vfs are enabled so skip the ones that are not */ if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
!test_bit(I40E_VF_STATE_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);
}
}
/** * i40e_vc_link_speed2mbps * converts i40e_aq_link_speed to integer value of Mbps * @link_speed: the speed to convert * * return the speed as direct value of Mbps.
**/ static u32
i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
{ switch (link_speed) { case I40E_LINK_SPEED_100MB: return SPEED_100; case I40E_LINK_SPEED_1GB: return SPEED_1000; case I40E_LINK_SPEED_2_5GB: return SPEED_2500; case I40E_LINK_SPEED_5GB: return SPEED_5000; case I40E_LINK_SPEED_10GB: return SPEED_10000; case I40E_LINK_SPEED_20GB: return SPEED_20000; case I40E_LINK_SPEED_25GB: return SPEED_25000; case I40E_LINK_SPEED_40GB: return SPEED_40000; case I40E_LINK_SPEED_UNKNOWN: return SPEED_UNKNOWN;
} return SPEED_UNKNOWN;
}
/** * i40e_set_vf_link_state * @vf: pointer to the VF structure * @pfe: pointer to PF event structure * @ls: pointer to link status structure * * set a link state on a single vf
**/ staticvoid i40e_set_vf_link_state(struct i40e_vf *vf, struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
{
u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
/** * 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 virtchnl_pf_event pfe;
/** * 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 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_STATE_INIT, &vf->vf_states) &&
!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) return;
/** * i40e_vc_reset_vf * @vf: pointer to the VF info * @notify_vf: notify vf about reset or not * Reset VF handler.
**/ void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
{ struct i40e_pf *pf = vf->pf; int i;
if (notify_vf)
i40e_vc_notify_vf_reset(vf);
/* We want to ensure that an actual reset occurs initiated after this * function was called. However, we do not want to wait forever, so * we'll give a reasonable time and print a message if we failed to * ensure a reset.
*/ for (i = 0; i < 20; i++) { /* If PF is in VFs releasing state reset VF is impossible, * so leave it.
*/ if (test_bit(__I40E_VFS_RELEASING, pf->state)) return; if (i40e_reset_vf(vf, false)) return;
usleep_range(10000, 20000);
}
if (notify_vf)
dev_warn(&vf->pf->pdev->dev, "Failed to initiate reset for VF %d after 200 milliseconds\n",
vf->vf_id); else
dev_dbg(&vf->pf->pdev->dev, "Failed to initiate reset for VF %d after 200 milliseconds\n",
vf->vf_id);
}
/** * i40e_vc_isvalid_vsi_id * @vf: pointer to the VF info * @vsi_id: VF relative VSI id * * check for the valid VSI id
**/ staticinlinebool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
return (vsi && (vsi->vf_id == vf->vf_id));
}
/** * i40e_vc_isvalid_queue_id * @vf: pointer to the VF info * @vsi_id: vsi id * @qid: vsi relative queue id * * check for the valid queue id
**/ staticinlinebool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
u16 qid)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
return (vsi && (qid < vsi->alloc_queue_pairs));
}
/** * i40e_vc_isvalid_vector_id * @vf: pointer to the VF info * @vector_id: VF relative vector id * * check for the valid vector id
**/ staticinlinebool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
{ struct i40e_pf *pf = vf->pf;
/** * i40e_vc_get_pf_queue_id * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue id * * return PF relative queue id
**/ static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
u8 vsi_queue_id)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
/** * i40e_get_real_pf_qid * @vf: pointer to the VF info * @vsi_id: vsi id * @queue_id: queue number * * wrapper function to get pf_queue_id handling ADq code as well
**/ static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
{ int i;
if (vf->adq_enabled) { /* Although VF considers all the queues(can be 1 to 16) as its * own but they may actually belong to different VSIs(up to 4). * We need to find which queues belongs to which VSI.
*/ for (i = 0; i < vf->num_tc; i++) { if (queue_id < vf->ch[i].num_qps) {
vsi_id = vf->ch[i].vsi_id; break;
} /* find right queue id which is relative to a * given VSI.
*/
queue_id -= vf->ch[i].num_qps;
}
}
/* 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) |
BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
FIELD_PREP(I40E_QINT_RQCTL_ITR_INDX_MASK, itr_idx);
wr32(hw, reg_idx, reg);
}
/* 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 & 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);
}
}
/** * i40e_config_rdma_qvlist * @vf: pointer to the VF info * @qvlist_info: queue and vector list * * Return 0 on success or < 0 on error
**/ staticint
i40e_config_rdma_qvlist(struct i40e_vf *vf, struct virtchnl_rdma_qvlist_info *qvlist_info)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct virtchnl_rdma_qv_info *qv_info;
u32 v_idx, i, reg_idx, reg;
u32 next_q_idx, next_q_type;
size_t size;
u32 msix_vf; int ret = 0;
msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
if (qvlist_info->num_vectors > msix_vf) {
dev_warn(&pf->pdev->dev, "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
qvlist_info->num_vectors,
msix_vf);
ret = -EINVAL; goto err_out;
}
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];
/* Validate vector id belongs to this vf */ if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
ret = -EINVAL; goto err_free;
}
v_idx = qv_info->v_idx;
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 = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
reg);
next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
reg);
/** * i40e_config_vsi_tx_queue * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue index * @info: config. info * * configure tx queue
**/ staticint i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
u16 vsi_queue_id, struct virtchnl_txq_info *info)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_hmc_obj_txq tx_ctx; struct i40e_vsi *vsi;
u16 pf_queue_id;
u32 qtx_ctl; int ret = 0;
if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
ret = -ENOENT; goto error_context;
}
pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
vsi = i40e_find_vsi_from_id(pf, vsi_id); if (!vsi) {
ret = -ENOENT; goto error_context;
}
/* 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;
/* ring_len has to be multiple of 8 */ if (!IS_ALIGNED(info->ring_len, 8) ||
info->ring_len > I40E_MAX_NUM_DESCRIPTORS_XL710) {
ret = -EINVAL; goto error_context;
}
tx_ctx.qlen = info->ring_len;
tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
tx_ctx.rdylist_act = 0;
tx_ctx.head_wb_ena = info->headwb_enabled;
tx_ctx.head_wb_addr = info->dma_headwb_addr;
/* 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;
qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
vf->vf_id + hw->func_caps.vf_base_id);
wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
i40e_flush(hw);
error_context: return ret;
}
/** * i40e_config_vsi_rx_queue * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue index * @info: config. info * * configure rx queue
**/ staticint i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
u16 vsi_queue_id, struct virtchnl_rxq_info *info)
{
u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; struct i40e_hw *hw = &pf->hw; struct i40e_hmc_obj_rxq rx_ctx; int ret = 0;
/* 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;
/* ring_len has to be multiple of 32 */ if (!IS_ALIGNED(info->ring_len, 32) ||
info->ring_len > I40E_MAX_NUM_DESCRIPTORS_XL710) {
ret = -EINVAL; goto error_param;
}
rx_ctx.qlen = info->ring_len;
/* 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 * @vf: pointer to the VF info * @idx: VSI index, applies only for ADq mode, zero otherwise * * alloc VF vsi context & resources
**/ staticint i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
{ struct i40e_mac_filter *f = NULL; struct i40e_vsi *main_vsi, *vsi; struct i40e_pf *pf = vf->pf;
u64 max_tx_rate = 0; int ret = 0;
main_vsi = i40e_pf_get_main_vsi(pf);
vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, main_vsi->seid, vf->vf_id);
if (!vsi) {
dev_err(&pf->pdev->dev, "add vsi failed for VF %d, aq_err %d\n",
vf->vf_id, pf->hw.aq.asq_last_status);
ret = -ENOENT; goto error_alloc_vsi_res;
}
if (!idx) {
u64 hashcfg = i40e_pf_get_default_rss_hashcfg(pf);
u8 broadcast[ETH_ALEN];
vf->lan_vsi_idx = vsi->idx;
vf->lan_vsi_id = vsi->id; /* 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);
spin_lock_bh(&vsi->mac_filter_hash_lock); if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
f = i40e_add_mac_filter(vsi,
vf->default_lan_addr.addr); 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);
}
eth_broadcast_addr(broadcast);
f = i40e_add_mac_filter(vsi, broadcast); if (!f)
dev_info(&pf->pdev->dev, "Could not allocate VF broadcast filter\n");
spin_unlock_bh(&vsi->mac_filter_hash_lock);
wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hashcfg);
wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id),
(u32)(hashcfg >> 32)); /* program mac filter only for VF VSI */
ret = i40e_sync_vsi_filters(vsi); if (ret)
dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
}
/* storing VSI index and id for ADq and don't apply the mac filter */ if (vf->adq_enabled) {
vf->ch[idx].vsi_idx = vsi->idx;
vf->ch[idx].vsi_id = vsi->id;
}
/* Set VF bandwidth if specified */ if (vf->tx_rate) {
max_tx_rate = vf->tx_rate;
} elseif (vf->ch[idx].max_tx_rate) {
max_tx_rate = vf->ch[idx].max_tx_rate;
}
if (max_tx_rate) {
max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
max_tx_rate, 0, NULL); if (ret)
dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
vf->vf_id, ret);
}
error_alloc_vsi_res: return ret;
}
/** * i40e_map_pf_queues_to_vsi * @vf: pointer to the VF info * * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
**/ staticvoid i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw;
u32 reg, num_tc = 1; /* VF has at least one traffic class */
u16 vsi_id, qps; int i, j;
if (vf->adq_enabled)
num_tc = vf->num_tc;
for (i = 0; i < num_tc; i++) { if (vf->adq_enabled) {
qps = vf->ch[i].num_qps;
vsi_id = vf->ch[i].vsi_id;
} else {
qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
vsi_id = vf->lan_vsi_id;
}
/** * i40e_map_pf_to_vf_queues * @vf: pointer to the VF info * * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
**/ staticvoid i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw;
u32 reg, total_qps = 0;
u32 qps, num_tc = 1; /* VF has at least one traffic class */
u16 vsi_id, qid; int i, j;
if (vf->adq_enabled)
num_tc = vf->num_tc;
for (i = 0; i < num_tc; i++) { if (vf->adq_enabled) {
qps = vf->ch[i].num_qps;
vsi_id = vf->ch[i].vsi_id;
} else {
qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
vsi_id = vf->lan_vsi_id;
}
/* 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
*/
i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
/** * i40e_disable_vf_mappings * @vf: pointer to the VF info * * disable VF mappings
**/ staticvoid 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 * @vf: pointer to the VF info * * free VF resources
**/ staticvoid i40e_free_vf_res(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw;
u32 reg_idx, reg; int i, j, msix_vf;
/* Start by disabling VF's configuration API to prevent the OS from * accessing the VF's VSI after it's freed / invalidated.
*/
clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
/* It's possible the VF had requeuested more queues than the default so * do the accounting here when we're about to free them.
*/ if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
pf->queues_left += vf->num_queue_pairs -
I40E_DEFAULT_QUEUES_PER_VF;
}
/* free vsi & disconnect it from the parent uplink */ if (vf->lan_vsi_idx) {
i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
vf->lan_vsi_idx = 0;
vf->lan_vsi_id = 0;
}
/* do the accounting and remove additional ADq VSI's */ if (vf->adq_enabled && vf->ch[0].vsi_idx) { for (j = 0; j < vf->num_tc; j++) { /* At this point VSI0 is already released so don't * release it again and only clear their values in * structure variables
*/ if (j)
i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
vf->ch[j].vsi_idx = 0;
vf->ch[j].vsi_id = 0;
}
}
msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
/* 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);
}
/* 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);
} /* reset some of the state variables keeping track of the resources */
vf->num_queue_pairs = 0;
clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
}
/** * i40e_alloc_vf_res * @vf: pointer to the VF info * * allocate VF resources
**/ staticint i40e_alloc_vf_res(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; int total_queue_pairs = 0; int ret, idx;
/* allocate hw vsi context & associated resources */
ret = i40e_alloc_vsi_res(vf, 0); if (ret) goto error_alloc;
total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
/* allocate additional VSIs based on tc information for ADq */ if (vf->adq_enabled) { if (pf->queues_left >=
(I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { /* TC 0 always belongs to VF VSI */ for (idx = 1; idx < vf->num_tc; idx++) {
ret = i40e_alloc_vsi_res(vf, idx); if (ret) goto error_alloc;
} /* send correct number of queues */
total_queue_pairs = I40E_MAX_VF_QUEUES;
} else {
dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
vf->vf_id);
vf->adq_enabled = false;
}
}
/* We account for each VF to get a default number of queue pairs. If * the VF has now requested more, we need to account for that to make * certain we never request more queues than we actually have left in * HW.
*/ if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
pf->queues_left -=
total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
if (vf->trusted)
set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); else
clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
/* store the total qps number for the runtime * VF req validation
*/
vf->num_queue_pairs = total_queue_pairs;
/* VF is now completely initialized */
set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
error_alloc: if (ret)
i40e_free_vf_res(vf);
return ret;
}
#define VF_DEVICE_STATUS 0xAA #define VF_TRANS_PENDING_MASK 0x20 /** * i40e_quiesce_vf_pci * @vf: pointer to the VF structure * * Wait for VF PCI transactions to be cleared after reset. Returns -EIO * if the transactions never clear.
**/ staticint 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;
vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
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;
}
/** * __i40e_getnum_vf_vsi_vlan_filters * @vsi: pointer to the vsi * * called to get the number of VLANs offloaded on this VF
**/ staticint __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
{ struct i40e_mac_filter *f;
u16 num_vlans = 0, bkt;
/** * i40e_getnum_vf_vsi_vlan_filters * @vsi: pointer to the vsi * * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
**/ staticint i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
{ int num_vlans;
/** * i40e_get_vlan_list_sync * @vsi: pointer to the VSI * @num_vlans: number of VLANs in mac_filter_hash, returned to caller * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. * This array is allocated here, but has to be freed in caller. * * Called to get number of VLANs and VLAN list present in mac_filter_hash.
**/ staticvoid i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
s16 **vlan_list)
{ struct i40e_mac_filter *f; int i = 0; int bkt;
/** * i40e_set_vsi_promisc * @vf: pointer to the VF struct * @seid: VSI number * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable * for a given VLAN * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable * for a given VLAN * @vl: List of VLANs - apply filter for given VLANs * @num_vlans: Number of elements in @vl
**/ staticint
i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, bool unicast_enable, s16 *vl, u16 num_vlans)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; int aq_ret, aq_tmp = 0; int i;
/* No VLAN to set promisc on, set on VSI */ if (!num_vlans || !vl) {
aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
multi_enable,
NULL); if (aq_ret) { int aq_err = pf->hw.aq.asq_last_status;
dev_err(&pf->pdev->dev, "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(aq_ret),
libie_aq_str(aq_err));
if (aq_ret) { int aq_err = pf->hw.aq.asq_last_status;
dev_err(&pf->pdev->dev, "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(aq_ret),
libie_aq_str(aq_err));
}
return aq_ret;
}
for (i = 0; i < num_vlans; i++) {
aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
multi_enable,
vl[i], NULL); if (aq_ret) { int aq_err = pf->hw.aq.asq_last_status;
dev_err(&pf->pdev->dev, "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(aq_ret),
libie_aq_str(aq_err));
if (!aq_tmp)
aq_tmp = aq_ret;
}
aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
unicast_enable,
vl[i], NULL); if (aq_ret) { int aq_err = pf->hw.aq.asq_last_status;
dev_err(&pf->pdev->dev, "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(aq_ret),
libie_aq_str(aq_err));
if (!aq_tmp)
aq_tmp = aq_ret;
}
}
if (aq_tmp)
aq_ret = aq_tmp;
return aq_ret;
}
/** * i40e_config_vf_promiscuous_mode * @vf: pointer to the VF info * @vsi_id: VSI id * @allmulti: set MAC L2 layer multicast promiscuous enable/disable * @alluni: set MAC L2 layer unicast promiscuous enable/disable * * Called from the VF to configure the promiscuous mode of * VF vsis and from the VF reset path to reset promiscuous mode.
**/ staticint i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
u16 vsi_id, bool allmulti, bool alluni)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi; int aq_ret = 0;
u16 num_vlans;
s16 *vl;
vsi = i40e_find_vsi_from_id(pf, vsi_id); if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) return -EINVAL;
/* no VLANs to set on, set on VSI */
aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
NULL, 0); return aq_ret;
}
/** * i40e_sync_vfr_reset * @hw: pointer to hw struct * @vf_id: VF identifier * * Before trigger hardware reset, we need to know if no other process has * reserved the hardware for any reset operations. This check is done by * examining the status of the RSTAT1 register used to signal the reset.
**/ staticint i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
{
u32 reg; int i;
for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
I40E_VFINT_ICR0_ADMINQ_MASK; if (reg) return 0;
usleep_range(100, 200);
}
return -EAGAIN;
}
/** * i40e_trigger_vf_reset * @vf: pointer to the VF structure * @flr: VFLR was issued or not * * Trigger hardware to start a reset for a particular VF. Expects the caller * to wait the proper amount of time to allow hardware to reset the VF before * it cleans up and restores VF functionality.
**/ staticvoid i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw;
u32 reg, reg_idx, bit_idx; bool vf_active;
u32 radq;
/* warn the VF */
vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
/* Disable VF's configuration API during reset. The flag is re-enabled * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. * It's normally disabled in i40e_free_vf_res(), but it's safer * to do it earlier to give some time to finish to any VF config * functions that may still be running at this point.
*/
clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
clear_bit(I40E_VF_STATE_RESOURCES_LOADED, &vf->vf_states);
/* 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.
*/ if (!flr) { /* Sync VFR reset before trigger next one */
radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
I40E_VFINT_ICR0_ADMINQ_MASK; if (vf_active && !radq) /* waiting for finish reset by virtual driver */ if (i40e_sync_vfr_reset(hw, vf->vf_id))
dev_info(&pf->pdev->dev, "Reset VF %d never finished\n",
vf->vf_id);
/* Reset VF using VPGEN_VFRTRIG reg. It is also setting * in progress state in rstat1 register.
*/
reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
i40e_flush(hw);
} /* 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));
i40e_flush(hw);
if (i40e_quiesce_vf_pci(vf))
dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
vf->vf_id);
}
/** * i40e_cleanup_reset_vf * @vf: pointer to the VF structure * * Cleanup a VF after the hardware reset is finished. Expects the caller to * have verified whether the reset is finished properly, and ensure the * minimum amount of wait time has passed.
**/ staticvoid i40e_cleanup_reset_vf(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw;
u32 reg;
/* disable promisc modes in case they were enabled */
i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
/* free VF resources to begin resetting the VSI state */
i40e_free_vf_res(vf);
/* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. * By doing this we allow HW to access VF memory at any point. If we * did it any sooner, HW could access memory while it was being freed * in i40e_free_vf_res(), causing an IOMMU fault. * * On the other hand, this needs to be done ASAP, because the VF driver * is waiting for this to happen and may report a timeout. It's * harmless, but it gets logged into Guest OS kernel log, so best avoid * it.
*/
reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
/* reallocate VF resources to finish resetting the VSI state */ if (!i40e_alloc_vf_res(vf)) { int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
i40e_enable_vf_mappings(vf);
set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); /* Do not notify the client during VF init */ if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
&vf->vf_states))
i40e_notify_client_of_vf_reset(pf, abs_vf_id);
vf->num_vlan = 0;
}
/* Tell the VF driver the reset is done. This needs to be done only * after VF has been fully initialized, because the VF driver may * request resources immediately after setting this flag.
*/
wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
}
/** * i40e_reset_vf * @vf: pointer to the VF structure * @flr: VFLR was issued or not * * Return: True if reset was performed successfully or if resets are disabled. * False if reset is already in progress.
**/ bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
{ struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; bool rsd = false;
u32 reg; int i;
if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) returntrue;
/* Bail out if VFs are disabled. */ if (test_bit(__I40E_VF_DISABLE, pf->state)) returntrue;
/* If VF is being reset already we don't need to continue. */ if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) returnfalse;
i40e_trigger_vf_reset(vf, flr);
/* poll VPGEN_VFRSTAT reg to make sure * that reset is complete
*/ 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.
*/
usleep_range(10000, 20000);
reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
rsd = true; break;
}
}
if (flr)
usleep_range(10000, 20000);
if (!rsd)
dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
vf->vf_id);
usleep_range(10000, 20000);
/* On initial reset, we don't have any queues to disable */ if (vf->lan_vsi_idx != 0)
i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
/** * i40e_reset_all_vfs * @pf: pointer to the PF structure * @flr: VFLR was issued or not * * Reset all allocated VFs in one go. First, tell the hardware to reset each * VF, then do all the waiting in one chunk, and finally finish restoring each * VF after the wait. This is useful during PF routines which need to reset * all VFs, as otherwise it must perform these resets in a serialized fashion. * * Returns true if any VFs were reset, and false otherwise.
**/ bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
{ struct i40e_hw *hw = &pf->hw; struct i40e_vf *vf;
u32 reg; int i;
/* If we don't have any VFs, then there is nothing to reset */ if (!pf->num_alloc_vfs) returnfalse;
/* If VFs have been disabled, there is no need to reset */ if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) returnfalse;
/* Begin reset on all VFs at once */ for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { /* If VF is being reset no need to trigger reset again */ if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
i40e_trigger_vf_reset(vf, flr);
}
/* HW requires some time to make sure it can flush the FIFO for a VF * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in * sequence to make sure that it has completed. We'll keep track of * the VFs using a simple iterator that increments once that VF has * finished resetting.
*/ for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) {
usleep_range(10000, 20000);
/* Check each VF in sequence, beginning with the VF to fail * the previous check.
*/ while (vf < &pf->vf[pf->num_alloc_vfs]) { if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) break;
}
/* If the current VF has finished resetting, move on * to the next VF in sequence.
*/
++vf;
}
}
if (flr)
usleep_range(10000, 20000);
/* Display a warning if at least one VF didn't manage to reset in * time, but continue on with the operation.
*/ if (vf < &pf->vf[pf->num_alloc_vfs])
dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
vf->vf_id);
usleep_range(10000, 20000);
/* Begin disabling all the rings associated with VFs, but do not wait * between each VF.
*/ for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { /* On initial reset, we don't have any queues to disable */ if (vf->lan_vsi_idx == 0) continue;
/* If VF is reset in another thread just continue */ if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) continue;
/* Now that we've notified HW to disable all of the VF rings, wait * until they finish.
*/ for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { /* On initial reset, we don't have any queues to disable */ if (vf->lan_vsi_idx == 0) continue;
/* If VF is reset in another thread just continue */ if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) continue;
/* Hw may need up to 50ms to finish disabling the RX queues. We * minimize the wait by delaying only once for all VFs.
*/
mdelay(50);
/* Finish the reset on each VF */ for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) { /* If VF is reset in another thread just continue */ if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) continue;
/** * i40e_free_vfs * @pf: pointer to the PF structure * * free VF resources
**/ void i40e_free_vfs(struct i40e_pf *pf)
{ struct i40e_hw *hw = &pf->hw;
u32 reg_idx, bit_idx; int i, tmp, vf_id;
if (!pf->vf) return;
set_bit(__I40E_VFS_RELEASING, pf->state); while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
usleep_range(1000, 2000);
i40e_notify_client_of_vf_enable(pf, 0);
/* 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); else
dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
/* Amortize wait time by stopping all VFs at the same time */ for (i = 0; i < pf->num_alloc_vfs; i++) { if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) continue;
/* free up VF resources */
tmp = pf->num_alloc_vfs;
pf->num_alloc_vfs = 0; for (i = 0; i < tmp; i++) { if (test_bit(I40E_VF_STATE_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;
/* 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.
*/ if (!pci_vfs_assigned(pf->pdev)) { /* 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;
wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
}
}
clear_bit(__I40E_VF_DISABLE, pf->state);
clear_bit(__I40E_VFS_RELEASING, pf->state);
}
#ifdef CONFIG_PCI_IOV /** * i40e_alloc_vfs * @pf: pointer to the PF structure * @num_alloc_vfs: number of VFs to allocate * * allocate VF resources
**/ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
{ struct i40e_vf *vfs; int i, ret = 0;
/* Disable interrupt 0 so we don't try to handle the VFLR. */
i40e_irq_dynamic_disable_icr0(pf);
/* 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) {
clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
pf->num_alloc_vfs = 0; goto err_iov;
}
} /* allocate memory */
vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); if (!vfs) {
ret = -ENOMEM; goto err_alloc;
}
pf->vf = vfs;
/* 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;
#endif /** * i40e_pci_sriov_enable * @pdev: pointer to a pci_dev structure * @num_vfs: number of VFs to allocate * * Enable or change the number of VFs
**/ staticint 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;
if (test_bit(__I40E_TESTING, pf->state)) {
dev_warn(&pdev->dev, "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
err = -EPERM; goto err_out;
}
/** * i40e_pci_sriov_configure * @pdev: pointer to a pci_dev structure * @num_vfs: number of VFs to allocate * * 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); int ret = 0;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
if (num_vfs) { if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
}
ret = i40e_pci_sriov_enable(pdev, num_vfs); goto sriov_configure_out;
}
if (!pci_vfs_assigned(pf->pdev)) {
i40e_free_vfs(pf);
clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
} else {
dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
ret = -EINVAL; goto sriov_configure_out;
}
sriov_configure_out:
clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); return ret;
}
aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
msg, msglen, NULL); if (aq_ret) {
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); return -EIO;
}
return 0;
}
/** * i40e_vc_send_resp_to_vf * @vf: pointer to the VF info * @opcode: operation code * @retval: return value * * send resp msg to VF
**/ staticint i40e_vc_send_resp_to_vf(struct i40e_vf *vf, enum virtchnl_ops opcode, int retval)
{ return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
}
/** * i40e_sync_vf_state * @vf: pointer to the VF info * @state: VF state * * Called from a VF message to synchronize the service with a potential * VF reset state
**/ staticbool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
{ int i;
/* When handling some messages, it needs VF state to be set. * It is possible that this flag is cleared during VF reset, * so there is a need to wait until the end of the reset to * handle the request message correctly.
*/ for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { if (test_bit(state, &vf->vf_states)) returntrue;
usleep_range(10000, 20000);
}
return test_bit(state, &vf->vf_states);
}
/** * i40e_vc_get_version_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request the API version used by the PF
**/ staticint i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_version_info info = {
VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
};
vf->vf_ver = *(struct virtchnl_version_info *)msg; /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ if (VF_IS_V10(&vf->vf_ver))
info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
0, (u8 *)&info, sizeof(struct virtchnl_version_info));
}
/** * i40e_del_qch - delete all the additional VSIs created as a part of ADq * @vf: pointer to VF structure
**/ staticvoid i40e_del_qch(struct i40e_vf *vf)
{ struct i40e_pf *pf = vf->pf; int i;
/* first element in the array belongs to primary VF VSI and we shouldn't * delete it. We should however delete the rest of the VSIs created
*/ for (i = 1; i < vf->num_tc; i++) { if (vf->ch[i].vsi_idx) {
i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
vf->ch[i].vsi_idx = 0;
vf->ch[i].vsi_id = 0;
}
}
}
/** * i40e_vc_get_max_frame_size * @vf: pointer to the VF * * Max frame size is determined based on the current port's max frame size and * whether a port VLAN is configured on this VF. The VF is not aware whether * it's in a port VLAN so the PF needs to account for this in max frame size * checks and sending the max frame size to the VF.
**/ static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
{
u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
if (vf->port_vlan_id)
max_frame_size -= VLAN_HLEN;
return max_frame_size;
}
/** * i40e_vc_get_vf_resources_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request its resources
**/ staticint i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_vf_resource *vfres = NULL; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi; int num_vsis = 1; int aq_ret = 0;
size_t len = 0; int ret;
if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) { if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
vfres->vf_cap_flags |=
VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
}
if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
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);
aq_ret = -EINVAL; goto err;
}
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
}
if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) { if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
vfres->vf_cap_flags |=
VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
}
if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
/* For ADq there can be up to 4 VSIs with max 4 queues each. * VF does not know about these additional VSIs and all * it cares is about its own queues. PF configures these queues * to its appropriate VSIs based on TC mapping
*/ if (vf->adq_enabled) { if (idx >= vf->num_tc) {
aq_ret = -ENODEV; goto error_param;
} if (j == (vf->ch[idx].num_qps - 1)) {
idx++;
j = 0; /* resetting the queue count */
vsi_queue_id = 0;
} else {
j++;
vsi_queue_id++;
}
}
} /* set vsi num_queue_pairs in use to num configured by VF */ if (!vf->adq_enabled) {
pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
qci->num_queue_pairs;
} else { for (i = 0; i < vf->num_tc; i++) {
vsi = pf->vsi[vf->ch[i].vsi_idx];
vsi->num_queue_pairs = vf->ch[i].num_qps;
if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) return -EINVAL;
}
return 0;
}
/** * i40e_vc_config_irq_map_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure the irq to * queue map
**/ staticint i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_irq_map_info *irqmap_info =
(struct virtchnl_irq_map_info *)msg; struct virtchnl_vector_map *map; int aq_ret = 0;
u16 vsi_id; int i;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto error_param;
}
i40e_config_irq_link_list(vf, vsi_id, map);
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
aq_ret);
}
/** * i40e_ctrl_vf_tx_rings * @vsi: the SRIOV VSI being configured * @q_map: bit map of the queues to be enabled * @enable: start or stop the queue
**/ staticint i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsignedlong q_map, bool enable)
{ struct i40e_pf *pf = vsi->back; int ret = 0;
u16 q_id;
/** * i40e_ctrl_vf_rx_rings * @vsi: the SRIOV VSI being configured * @q_map: bit map of the queues to be enabled * @enable: start or stop the queue
**/ staticint i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsignedlong q_map, bool enable)
{ struct i40e_pf *pf = vsi->back; int ret = 0;
u16 q_id;
for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
enable); if (ret) break;
} return ret;
}
/** * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL * @vqs: virtchnl_queue_select structure containing bitmaps to validate * * Returns true if validation was successful, else false.
*/ staticbool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
{ if ((!vqs->rx_queues && !vqs->tx_queues) ||
vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) returnfalse;
returntrue;
}
/** * i40e_vc_enable_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to enable all or specific queue(s)
**/ staticint i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_queue_select *vqs =
(struct virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; int aq_ret = 0; int i;
if (vf->is_disabled_from_host) {
aq_ret = -EPERM;
dev_info(&pf->pdev->dev, "Admin has disabled VF %d, will not enable queues\n",
vf->vf_id); goto error_param;
}
if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
aq_ret = -EINVAL; goto error_param;
}
if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
aq_ret = -EINVAL; goto error_param;
}
if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
aq_ret = -EINVAL; goto error_param;
}
/* Use the queue bit map sent by the VF */ if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, true)) {
aq_ret = -EIO; goto error_param;
} if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, true)) {
aq_ret = -EIO; goto error_param;
}
/* need to start the rings for additional ADq VSI's as well */ if (vf->adq_enabled) { /* zero belongs to LAN VSI */ for (i = 1; i < vf->num_tc; i++) { if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
aq_ret = -EIO;
}
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
aq_ret);
}
/** * i40e_vc_disable_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to disable all or specific * queue(s)
**/ staticint i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_queue_select *vqs =
(struct virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; int aq_ret = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto error_param;
}
if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
aq_ret = -EINVAL; goto error_param;
}
if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
aq_ret = -EINVAL; goto error_param;
}
/* Use the queue bit map sent by the VF */ if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, false)) {
aq_ret = -EIO; goto error_param;
} if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, false)) {
aq_ret = -EIO; goto error_param;
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
aq_ret);
}
/** * i40e_check_enough_queue - find big enough queue number * @vf: pointer to the VF info * @needed: the number of items needed * * Returns the base item index of the queue, or negative for error
**/ staticint i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
{ unsignedint i, cur_queues, more, pool_size; struct i40e_lump_tracking *pile; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi;
vsi = pf->vsi[vf->lan_vsi_idx];
cur_queues = vsi->alloc_queue_pairs;
/* if current allocated queues are enough for need */ if (cur_queues >= needed) return vsi->base_queue;
pile = pf->qp_pile; if (cur_queues > 0) { /* if the allocated queues are not zero * just check if there are enough queues for more * behind the allocated queues.
*/
more = needed - cur_queues; for (i = vsi->base_queue + cur_queues;
i < pile->num_entries; i++) { if (pile->list[i] & I40E_PILE_VALID_BIT) break;
if (more-- == 1) /* there is enough */ return vsi->base_queue;
}
}
pool_size = 0; for (i = 0; i < pile->num_entries; i++) { if (pile->list[i] & I40E_PILE_VALID_BIT) {
pool_size = 0; continue;
} if (needed <= ++pool_size) /* there is enough */ return i;
}
return -ENOMEM;
}
/** * i40e_vc_request_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * VFs get a default number of queues but can use this message to request a * different number. If the request is successful, PF will reset the VF and * return 0. If unsuccessful, PF will send message informing VF of number of * available queues and return result of sending VF a message.
**/ staticint i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_vf_res_request *vfres =
(struct virtchnl_vf_res_request *)msg;
u16 req_pairs = vfres->num_queue_pairs;
u8 cur_pairs = vf->num_queue_pairs; struct i40e_pf *pf = vf->pf;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) return -EINVAL;
if (req_pairs > I40E_MAX_VF_QUEUES) {
dev_err(&pf->pdev->dev, "VF %d tried to request more than %d queues.\n",
vf->vf_id,
I40E_MAX_VF_QUEUES);
vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
} elseif (req_pairs - cur_pairs > pf->queues_left) {
dev_warn(&pf->pdev->dev, "VF %d requested %d more queues, but only %d left.\n",
vf->vf_id,
req_pairs - cur_pairs,
pf->queues_left);
vfres->num_queue_pairs = pf->queues_left + cur_pairs;
} elseif (i40e_check_enough_queue(vf, req_pairs) < 0) {
dev_warn(&pf->pdev->dev, "VF %d requested %d more queues, but there is not enough for it.\n",
vf->vf_id,
req_pairs - cur_pairs);
vfres->num_queue_pairs = cur_pairs;
} else { /* successful request */
vf->num_req_queues = req_pairs;
i40e_vc_reset_vf(vf, true); return 0;
}
/** * i40e_vc_get_stats_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to get vsi stats
**/ staticint i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_queue_select *vqs =
(struct virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; struct i40e_eth_stats stats; int aq_ret = 0; struct i40e_vsi *vsi;
memset(&stats, 0, sizeof(struct i40e_eth_stats));
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto error_param;
}
if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
aq_ret = -EINVAL; goto error_param;
}
vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi) {
aq_ret = -EINVAL; goto error_param;
}
i40e_update_eth_stats(vsi);
stats = vsi->eth_stats;
error_param: /* send the response back to the VF */ return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
(u8 *)&stats, sizeof(stats));
}
#define I40E_MAX_MACVLAN_PER_HW 3072 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
(num_ports)) /* If the VF is not trusted restrict the number of MAC/VLAN it can program * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
*/ #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) #define I40E_VC_MAX_VLAN_PER_VF 16
#define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
({ typeof(vf_num) vf_num_ = (vf_num); \
typeof(num_ports) num_ports_ = (num_ports); \
((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
I40E_VC_MAX_MAC_ADDR_PER_VF; }) /** * i40e_check_vf_permission * @vf: pointer to the VF info * @al: MAC address list from virtchnl * * Check that the given list of MAC addresses is allowed. Will return -EPERM * if any address in the list is not valid. Checks the following conditions: * * 1) broadcast and zero addresses are never valid * 2) unicast addresses are not allowed if the VMM has administratively set * the VF MAC address, unless the VF is marked as privileged. * 3) There is enough space to add all the addresses. * * Note that to guarantee consistency, it is expected this function be called * while holding the mac_filter_hash_lock, as otherwise the current number of * addresses might not be accurate.
**/ staticinlineint i40e_check_vf_permission(struct i40e_vf *vf, struct virtchnl_ether_addr_list *al)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; struct i40e_hw *hw = &pf->hw; int i, mac_add_max, mac_add_cnt = 0; bool vf_trusted;
for (i = 0; i < al->num_elements; i++) { struct i40e_mac_filter *f;
u8 *addr = al->list[i].addr;
if (is_broadcast_ether_addr(addr) ||
is_zero_ether_addr(addr)) {
dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
addr); return -EINVAL;
}
/* 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. * Unless the VF is privileged and then it can do whatever. * The VF may request to set the MAC address filter already * assigned to it so do not return an error in that case.
*/ if (!vf_trusted && !is_multicast_ether_addr(addr) &&
vf->pf_set_mac && !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
dev_err(&pf->pdev->dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); return -EPERM;
}
/*count filters that really will be added*/
f = i40e_find_mac(vsi, addr); if (!f)
++mac_add_cnt;
}
/* If this VF is not privileged, then we can't add more than a limited * number of addresses. * * If this VF is trusted, it can use more resources than untrusted. * However to ensure that every trusted VF has appropriate number of * resources, divide whole pool of resources per port and then across * all VFs.
*/ if (!vf_trusted)
mac_add_max = I40E_VC_MAX_MAC_ADDR_PER_VF; else
mac_add_max = I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, hw->num_ports);
/* VF can replace all its filters in one step, in this case mac_add_max * will be added as active and another mac_add_max will be in * a to-be-removed state. Account for that.
*/ if ((i40e_count_active_filters(vsi) + mac_add_cnt) > mac_add_max ||
(i40e_count_all_filters(vsi) + mac_add_cnt) > 2 * mac_add_max) { if (!vf_trusted) {
dev_err(&pf->pdev->dev, "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); return -EPERM;
} else {
dev_err(&pf->pdev->dev, "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); return -EPERM;
}
} return 0;
}
/** * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr * @vc_ether_addr: used to extract the type
**/ static u8
i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
{ return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;
}
/** * i40e_is_vc_addr_legacy * @vc_ether_addr: VIRTCHNL structure that contains MAC and type * * check if the MAC address is from an older VF
**/ staticbool
i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
{ return i40e_vc_ether_addr_type(vc_ether_addr) ==
VIRTCHNL_ETHER_ADDR_LEGACY;
}
/** * i40e_is_vc_addr_primary * @vc_ether_addr: VIRTCHNL structure that contains MAC and type * * check if the MAC address is the VF's primary MAC * This function should only be called when the MAC address in * virtchnl_ether_addr is a valid unicast MAC
**/ staticbool
i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)
{ return i40e_vc_ether_addr_type(vc_ether_addr) ==
VIRTCHNL_ETHER_ADDR_PRIMARY;
}
/** * i40e_update_vf_mac_addr * @vf: VF to update * @vc_ether_addr: structure from VIRTCHNL with MAC to add * * update the VF's cached hardware MAC if allowed
**/ staticvoid
i40e_update_vf_mac_addr(struct i40e_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
{
u8 *mac_addr = vc_ether_addr->addr;
if (!is_valid_ether_addr(mac_addr)) return;
/* If request to add MAC filter is a primary request update its default * MAC address with the requested one. If it is a legacy request then * check if current default is empty if so update the default MAC
*/ if (i40e_is_vc_addr_primary(vc_ether_addr)) {
ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
} elseif (i40e_is_vc_addr_legacy(vc_ether_addr)) { if (is_zero_ether_addr(vf->default_lan_addr.addr))
ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
}
}
/** * i40e_vc_add_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * add guest mac address filter
**/ staticint i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_ether_addr_list *al =
(struct virtchnl_ether_addr_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; int ret = 0; int i;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
!i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
ret = -EINVAL; goto error_param;
}
vsi = pf->vsi[vf->lan_vsi_idx];
/* 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_hash_lock);
ret = i40e_check_vf_permission(vf, al); if (ret) {
spin_unlock_bh(&vsi->mac_filter_hash_lock); goto error_param;
}
/* 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); if (!f) {
f = i40e_add_mac_filter(vsi, al->list[i].addr);
if (!f) {
dev_err(&pf->pdev->dev, "Unable to add MAC filter %pM for VF %d\n",
al->list[i].addr, vf->vf_id);
ret = -EINVAL;
spin_unlock_bh(&vsi->mac_filter_hash_lock); goto error_param;
}
}
i40e_update_vf_mac_addr(vf, &al->list[i]);
}
spin_unlock_bh(&vsi->mac_filter_hash_lock);
/* program the updated filter list */
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);
error_param: /* send the response to the VF */ return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
ret, NULL, 0);
}
/** * i40e_vc_del_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove guest mac address filter
**/ staticint i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_ether_addr_list *al =
(struct virtchnl_ether_addr_list *)msg; bool was_unimac_deleted = false; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; int ret = 0; int i;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
!i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
ret = -EINVAL; goto error_param;
}
for (i = 0; i < al->num_elements; i++) { if (is_broadcast_ether_addr(al->list[i].addr) ||
is_zero_ether_addr(al->list[i].addr)) {
dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
al->list[i].addr, vf->vf_id);
ret = -EINVAL; goto error_param;
}
}
vsi = pf->vsi[vf->lan_vsi_idx];
spin_lock_bh(&vsi->mac_filter_hash_lock); /* delete addresses from the list */ for (i = 0; i < al->num_elements; i++) { const u8 *addr = al->list[i].addr;
/* Allow to delete VF primary MAC only if it was not set * administratively by PF.
*/ if (ether_addr_equal(addr, vf->default_lan_addr.addr)) { if (!vf->pf_set_mac)
was_unimac_deleted = true; else continue;
}
if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
ret = -EINVAL;
spin_unlock_bh(&vsi->mac_filter_hash_lock); goto error_param;
}
}
spin_unlock_bh(&vsi->mac_filter_hash_lock);
if (was_unimac_deleted)
eth_zero_addr(vf->default_lan_addr.addr);
/* program the updated filter list */
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);
if (vf->trusted && was_unimac_deleted) { struct i40e_mac_filter *f; struct hlist_node *h;
u8 *macaddr = NULL; int bkt;
/* set last unicast mac address as default */
spin_lock_bh(&vsi->mac_filter_hash_lock);
hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { if (is_valid_ether_addr(f->macaddr))
macaddr = f->macaddr;
} if (macaddr)
ether_addr_copy(vf->default_lan_addr.addr, macaddr);
spin_unlock_bh(&vsi->mac_filter_hash_lock);
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
}
/** * i40e_vc_add_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * program guest vlan id
**/ staticint i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_vlan_filter_list *vfl =
(struct virtchnl_vlan_filter_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; int aq_ret = 0; int i;
if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
dev_err(&pf->pdev->dev, "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); goto error_param;
} if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
!i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
aq_ret = -EINVAL; goto error_param;
}
for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
aq_ret = -EINVAL;
dev_err(&pf->pdev->dev, "invalid VF VLAN id %d\n", vfl->vlan_id[i]); goto error_param;
}
}
vsi = pf->vsi[vf->lan_vsi_idx]; if (vsi->info.pvid) {
aq_ret = -EINVAL; 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]); if (!ret)
vf->num_vlan++;
if (test_bit(I40E_VF_STATE_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_STATE_MC_PROMISC, &vf->vf_states))
i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, true,
vfl->vlan_id[i],
NULL);
if (ret)
dev_err(&pf->pdev->dev, "Unable to add VLAN filter %d for VF %d, error %d\n",
vfl->vlan_id[i], vf->vf_id, ret);
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
}
/** * i40e_vc_remove_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove programmed guest vlan id
**/ staticint i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_vlan_filter_list *vfl =
(struct virtchnl_vlan_filter_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; int aq_ret = 0; int i;
for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
aq_ret = -EINVAL; goto error_param;
}
}
vsi = pf->vsi[vf->lan_vsi_idx]; if (vsi->info.pvid) { if (vfl->num_elements > 1 || vfl->vlan_id[0])
aq_ret = -EINVAL; goto error_param;
}
for (i = 0; i < vfl->num_elements; i++) {
i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
vf->num_vlan--;
if (test_bit(I40E_VF_STATE_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_STATE_MC_PROMISC, &vf->vf_states))
i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, false,
vfl->vlan_id[i],
NULL);
}
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
}
/** * i40e_vc_rdma_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF for the iwarp msgs
**/ staticint i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *main_vsi; int aq_ret = 0; int abs_vf_id;
error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA,
aq_ret);
}
/** * i40e_vc_rdma_qvmap_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @config: config qvmap or release it * * called from the VF for the iwarp msgs
**/ staticint i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
{ struct virtchnl_rdma_qvlist_info *qvlist_info =
(struct virtchnl_rdma_qvlist_info *)msg; int aq_ret = 0;
for (i = 0; i < vrl->lut_entries; i++) if (vrl->lut[i] >= vf->num_queue_pairs) {
aq_ret = -EINVAL; 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, VIRTCHNL_OP_CONFIG_RSS_LUT,
aq_ret);
}
/** * i40e_vc_get_rss_hashcfg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Return the RSS Hash configuration bits allowed by the hardware
**/ staticint i40e_vc_get_rss_hashcfg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_rss_hashcfg *vrh = NULL; struct i40e_pf *pf = vf->pf; int aq_ret = 0; int len = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto err;
}
len = sizeof(struct virtchnl_rss_hashcfg);
vrh = kzalloc(len, GFP_KERNEL); if (!vrh) {
aq_ret = -ENOMEM;
len = 0; goto err;
}
vrh->hashcfg = i40e_pf_get_default_rss_hashcfg(pf);
err: /* send the response back to the VF */
aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HASHCFG_CAPS,
aq_ret, (u8 *)vrh, len);
kfree(vrh); return aq_ret;
}
/** * i40e_vc_set_rss_hashcfg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Set the RSS Hash configuration bits for the VF
**/ staticint i40e_vc_set_rss_hashcfg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_rss_hashcfg *vrh =
(struct virtchnl_rss_hashcfg *)msg; struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; int aq_ret = 0;
/* send the response to the VF */
err: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HASHCFG, aq_ret);
}
/** * i40e_vc_enable_vlan_stripping * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Enable vlan header stripping for the VF
**/ staticint i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
{ struct i40e_vsi *vsi; int aq_ret = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto err;
}
vsi = vf->pf->vsi[vf->lan_vsi_idx];
i40e_vlan_stripping_enable(vsi);
/* send the response to the VF */
err: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
aq_ret);
}
/** * i40e_vc_disable_vlan_stripping * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Disable vlan header stripping for the VF
**/ staticint i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
{ struct i40e_vsi *vsi; int aq_ret = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto err;
}
vsi = vf->pf->vsi[vf->lan_vsi_idx];
i40e_vlan_stripping_disable(vsi);
/* send the response to the VF */
err: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
aq_ret);
}
/** * i40e_validate_cloud_filter * @vf: pointer to VF structure * @tc_filter: pointer to filter requested * * This function validates cloud filter programmed as TC filter for ADq
**/ staticint i40e_validate_cloud_filter(struct i40e_vf *vf, struct virtchnl_filter *tc_filter)
{ struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; struct i40e_mac_filter *f; struct hlist_node *h; bool found = false; int bkt;
if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {
dev_info(&pf->pdev->dev, "VF %d: ADQ doesn't support this action (%d)\n",
vf->vf_id, tc_filter->action); goto err;
}
/* action_meta is TC number here to which the filter is applied */ if (!tc_filter->action_meta ||
tc_filter->action_meta >= vf->num_tc) {
dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
vf->vf_id, tc_filter->action_meta); goto err;
}
/* Check filter if it's programmed for advanced mode or basic mode. * There are two ADq modes (for VF only), * 1. Basic mode: intended to allow as many filter options as possible * to be added to a VF in Non-trusted mode. Main goal is * to add filters to its own MAC and VLAN id. * 2. Advanced mode: is for allowing filters to be applied other than * its own MAC or VLAN. This mode requires the VF to be * Trusted.
*/ if (mask.dst_mac[0] && !mask.dst_ip[0]) {
vsi = pf->vsi[vf->lan_vsi_idx];
f = i40e_find_mac(vsi, data.dst_mac);
if (!f) {
dev_info(&pf->pdev->dev, "Destination MAC %pM doesn't belong to VF %d\n",
data.dst_mac, vf->vf_id); goto err;
}
if (mask.vlan_id) {
hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
hlist) { if (f->vlan == ntohs(data.vlan_id)) {
found = true; break;
}
} if (!found) {
dev_info(&pf->pdev->dev, "VF %d doesn't have any VLAN id %u\n",
vf->vf_id, ntohs(data.vlan_id)); goto err;
}
}
} else { /* Check if VF is trusted */ if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
dev_err(&pf->pdev->dev, "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
vf->vf_id); return -EIO;
}
}
if (mask.dst_mac[0] & data.dst_mac[0]) { if (is_broadcast_ether_addr(data.dst_mac) ||
is_zero_ether_addr(data.dst_mac)) {
dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
vf->vf_id, data.dst_mac); goto err;
}
}
if (mask.src_mac[0] & data.src_mac[0]) { if (is_broadcast_ether_addr(data.src_mac) ||
is_zero_ether_addr(data.src_mac)) {
dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
vf->vf_id, data.src_mac); goto err;
}
}
if (mask.dst_port & data.dst_port) { if (!data.dst_port) {
dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
vf->vf_id); goto err;
}
}
if (mask.src_port & data.src_port) { if (!data.src_port) {
dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
vf->vf_id); goto err;
}
}
/** * i40e_find_vsi_from_seid - searches for the vsi with the given seid * @vf: pointer to the VF info * @seid: seid of the vsi it is searching for
**/ staticstruct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
{ struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; int i;
for (i = 0; i < vf->num_tc ; i++) {
vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); if (vsi && vsi->seid == seid) return vsi;
} return NULL;
}
/** * i40e_del_all_cloud_filters * @vf: pointer to the VF info * * This function deletes all cloud filters
**/ staticvoid i40e_del_all_cloud_filters(struct i40e_vf *vf)
{ struct i40e_cloud_filter *cfilter = NULL; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; struct hlist_node *node; int ret;
hlist_for_each_entry_safe(cfilter, node,
&vf->cloud_filter_list, cloud_node) {
vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
if (!vsi) {
dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
vf->vf_id, cfilter->seid); continue;
}
if (cfilter->dst_port)
ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, false); else
ret = i40e_add_del_cloud_filter(vsi, cfilter, false); if (ret)
dev_err(&pf->pdev->dev, "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(ret),
libie_aq_str(pf->hw.aq.asq_last_status));
switch (vcf->flow_type) { case VIRTCHNL_TCP_V4_FLOW:
cfilter.n_proto = ETH_P_IP; if (mask.dst_ip[0] & tcf.dst_ip[0])
memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
ARRAY_SIZE(tcf.dst_ip)); elseif (mask.src_ip[0] & tcf.dst_ip[0])
memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
ARRAY_SIZE(tcf.dst_ip)); break; case VIRTCHNL_TCP_V6_FLOW:
cfilter.n_proto = ETH_P_IPV6; if (mask.dst_ip[3] & tcf.dst_ip[3])
memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, sizeof(cfilter.ip.v6.dst_ip6)); if (mask.src_ip[3] & tcf.src_ip[3])
memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, sizeof(cfilter.ip.v6.src_ip6)); break; default: /* TC filter can be configured based on different combinations * and in this case IP is not a part of filter config
*/
dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
vf->vf_id);
}
/* get the vsi to which the tc belongs to */
vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
cfilter.seid = vsi->seid;
cfilter.flags = vcf->field_flags;
/* Deleting TC filter */ if (tcf.dst_port)
ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); else
ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); if (ret) {
dev_err(&pf->pdev->dev, "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
vf->vf_id, ERR_PTR(ret),
libie_aq_str(pf->hw.aq.asq_last_status)); goto err;
}
hlist_for_each_entry_safe(cf, node,
&vf->cloud_filter_list, cloud_node) { if (cf->seid != cfilter.seid) continue; if (mask.dst_port) if (cfilter.dst_port != cf->dst_port) continue; if (mask.dst_mac[0]) if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) continue; /* for ipv4 data to be valid, only first byte of mask is set */ if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
ARRAY_SIZE(tcf.dst_ip))) continue; /* for ipv6, mask is set for all sixteen bytes (4 words) */ if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, sizeof(cfilter.ip.v6.src_ip6))) continue; if (mask.vlan_id) if (cfilter.vlan_id != cf->vlan_id) continue;
switch (vcf->flow_type) { case VIRTCHNL_TCP_V4_FLOW:
cfilter->n_proto = ETH_P_IP; if (mask.dst_ip[0] & tcf.dst_ip[0])
memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
ARRAY_SIZE(tcf.dst_ip)); elseif (mask.src_ip[0] & tcf.dst_ip[0])
memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
ARRAY_SIZE(tcf.dst_ip)); break; case VIRTCHNL_TCP_V6_FLOW:
cfilter->n_proto = ETH_P_IPV6; if (mask.dst_ip[3] & tcf.dst_ip[3])
memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, sizeof(cfilter->ip.v6.dst_ip6)); if (mask.src_ip[3] & tcf.src_ip[3])
memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, sizeof(cfilter->ip.v6.src_ip6)); break; default: /* TC filter can be configured based on different combinations * and in this case IP is not a part of filter config
*/
dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
vf->vf_id);
}
/* get the VSI to which the TC belongs to */
vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
cfilter->seid = vsi->seid;
cfilter->flags = vcf->field_flags;
INIT_HLIST_NODE(&cfilter->cloud_node);
hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); /* release the pointer passing it to the collection */
cfilter = NULL;
vf->num_cloud_filters++;
err_free:
kfree(cfilter);
err_out: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
aq_ret);
}
/** * i40e_vc_add_qch_msg: Add queue channel and enable ADq * @vf: pointer to the VF info * @msg: pointer to the msg buffer
**/ staticint i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
{ struct virtchnl_tc_info *tci =
(struct virtchnl_tc_info *)msg; struct i40e_pf *pf = vf->pf; struct i40e_link_status *ls = &pf->hw.phy.link_info; int i, adq_request_qps = 0; int aq_ret = 0;
u64 speed = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto err;
}
/* ADq cannot be applied if spoof check is ON */ if (vf->spoofchk) {
dev_err(&pf->pdev->dev, "Spoof check is ON, turn it OFF to enable ADq\n");
aq_ret = -EINVAL; goto err;
}
if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
dev_err(&pf->pdev->dev, "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
vf->vf_id);
aq_ret = -EINVAL; goto err;
}
/* max number of traffic classes for VF currently capped at 4 */ if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
dev_err(&pf->pdev->dev, "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
aq_ret = -EINVAL; goto err;
}
/* validate queues for each TC */ for (i = 0; i < tci->num_tc; i++) if (!tci->list[i].count ||
tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
dev_err(&pf->pdev->dev, "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
vf->vf_id, i, tci->list[i].count,
I40E_DEFAULT_QUEUES_PER_VF);
aq_ret = -EINVAL; goto err;
}
/* need Max VF queues but already have default number of queues */
adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
if (pf->queues_left < adq_request_qps) {
dev_err(&pf->pdev->dev, "No queues left to allocate to VF %d\n",
vf->vf_id);
aq_ret = -EINVAL; goto err;
} else { /* we need to allocate max VF queues to enable ADq so as to * make sure ADq enabled VF always gets back queues when it * goes through a reset.
*/
vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
}
/* get link speed in MB to validate rate limit */
speed = i40e_vc_link_speed2mbps(ls->link_speed); if (speed == SPEED_UNKNOWN) {
dev_err(&pf->pdev->dev, "Cannot detect link speed\n");
aq_ret = -EINVAL; goto err;
}
/* parse data from the queue channel info */
vf->num_tc = tci->num_tc; for (i = 0; i < vf->num_tc; i++) { if (tci->list[i].max_tx_rate) { if (tci->list[i].max_tx_rate > speed) {
dev_err(&pf->pdev->dev, "Invalid max tx rate %llu specified for VF %d.",
tci->list[i].max_tx_rate,
vf->vf_id);
aq_ret = -EINVAL; goto err;
} else {
vf->ch[i].max_tx_rate =
tci->list[i].max_tx_rate;
}
}
vf->ch[i].num_qps = tci->list[i].count;
}
/* set this flag only after making sure all inputs are sane */
vf->adq_enabled = true;
/* reset the VF in order to allocate resources */
i40e_vc_reset_vf(vf, true);
return 0;
/* send the response to the VF */
err: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
aq_ret);
}
/** * i40e_vc_del_qch_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer
**/ staticint i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
{ struct i40e_pf *pf = vf->pf; int aq_ret = 0;
if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
aq_ret = -EINVAL; goto err;
}
if (vf->adq_enabled) {
i40e_del_all_cloud_filters(vf);
i40e_del_qch(vf);
vf->adq_enabled = false;
vf->num_tc = 0;
dev_info(&pf->pdev->dev, "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
vf->vf_id);
} else {
dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
vf->vf_id);
aq_ret = -EINVAL;
}
/* reset the VF in order to allocate resources */
i40e_vc_reset_vf(vf, true);
/* Check if VF is disabled. */ if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) return -EINVAL;
/* perform basic checks on the msg */
ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
if (ret) {
i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL);
dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
local_vf_id, v_opcode, msglen); return ret;
}
switch (v_opcode) { case VIRTCHNL_OP_VERSION:
ret = i40e_vc_get_version_msg(vf, msg); break; case VIRTCHNL_OP_GET_VF_RESOURCES:
ret = i40e_vc_get_vf_resources_msg(vf, msg);
i40e_vc_notify_vf_link_state(vf); break; case VIRTCHNL_OP_RESET_VF:
i40e_vc_reset_vf(vf, false);
ret = 0; break; case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
ret = i40e_vc_config_queues_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_IRQ_MAP:
ret = i40e_vc_config_irq_map_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_QUEUES:
ret = i40e_vc_enable_queues_msg(vf, msg);
i40e_vc_notify_vf_link_state(vf); break; case VIRTCHNL_OP_DISABLE_QUEUES:
ret = i40e_vc_disable_queues_msg(vf, msg); break; case VIRTCHNL_OP_ADD_ETH_ADDR:
ret = i40e_vc_add_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_DEL_ETH_ADDR:
ret = i40e_vc_del_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_ADD_VLAN:
ret = i40e_vc_add_vlan_msg(vf, msg); break; case VIRTCHNL_OP_DEL_VLAN:
ret = i40e_vc_remove_vlan_msg(vf, msg); break; case VIRTCHNL_OP_GET_STATS:
ret = i40e_vc_get_stats_msg(vf, msg); break; case VIRTCHNL_OP_RDMA:
ret = i40e_vc_rdma_msg(vf, msg, msglen); break; case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:
ret = i40e_vc_rdma_qvmap_msg(vf, msg, true); break; case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:
ret = i40e_vc_rdma_qvmap_msg(vf, msg, false); break; case VIRTCHNL_OP_CONFIG_RSS_KEY:
ret = i40e_vc_config_rss_key(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_LUT:
ret = i40e_vc_config_rss_lut(vf, msg); break; case VIRTCHNL_OP_GET_RSS_HASHCFG_CAPS:
ret = i40e_vc_get_rss_hashcfg(vf, msg); break; case VIRTCHNL_OP_SET_RSS_HASHCFG:
ret = i40e_vc_set_rss_hashcfg(vf, msg); break; case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
ret = i40e_vc_enable_vlan_stripping(vf, msg); break; case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
ret = i40e_vc_disable_vlan_stripping(vf, msg); break; case VIRTCHNL_OP_REQUEST_QUEUES:
ret = i40e_vc_request_queues_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_CHANNELS:
ret = i40e_vc_add_qch_msg(vf, msg); break; case VIRTCHNL_OP_DISABLE_CHANNELS:
ret = i40e_vc_del_qch_msg(vf, msg); break; case VIRTCHNL_OP_ADD_CLOUD_FILTER:
ret = i40e_vc_add_cloud_filter(vf, msg); break; case VIRTCHNL_OP_DEL_CLOUD_FILTER:
ret = i40e_vc_del_cloud_filter(vf, msg); break; case VIRTCHNL_OP_UNKNOWN: default:
dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
v_opcode, local_vf_id);
ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
-EOPNOTSUPP); break;
}
return ret;
}
/** * i40e_vc_process_vflr_event * @pf: pointer to the PF structure * * called from the vlfr irq handler to * free up VF resources and state variables
**/ int i40e_vc_process_vflr_event(struct i40e_pf *pf)
{ struct i40e_hw *hw = &pf->hw;
u32 reg, reg_idx, bit_idx; struct i40e_vf *vf; int vf_id;
if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) return 0;
/* 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.
*/
reg = rd32(hw, I40E_PFINT_ICR0_ENA);
reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
wr32(hw, I40E_PFINT_ICR0_ENA, reg);
i40e_flush(hw);
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; /* read GLGEN_VFLRSTAT register to find out the flr VFs */
vf = &pf->vf[vf_id];
reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); if (reg & BIT(bit_idx)) /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ if (!i40e_reset_vf(vf, true)) { /* At least one VF did not finish resetting, retry next time */
set_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
}
}
return 0;
}
/** * i40e_validate_vf * @pf: the physical function * @vf_id: VF identifier * * Check that the VF is enabled and the VSI exists. * * Returns 0 on success, negative on failure
**/ staticint i40e_validate_vf(struct i40e_pf *pf, int vf_id)
{ struct i40e_vsi *vsi; struct i40e_vf *vf; int ret = 0;
if (vf_id >= pf->num_alloc_vfs) {
dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
ret = -EINVAL; goto err_out;
}
vf = &pf->vf[vf_id];
vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); if (!vsi)
ret = -EINVAL;
err_out: return ret;
}
/** * i40e_check_vf_init_timeout * @vf: the virtual function * * Check that the VF's initialization was successfully done and if not * wait up to 300ms for its finish. * * Returns true when VF is initialized, false on timeout
**/ staticbool i40e_check_vf_init_timeout(struct i40e_vf *vf)
{ int i;
/* When the VF is resetting wait until it is done. * It can take up to 200 milliseconds, but wait for * up to 300 milliseconds to be safe.
*/ for (i = 0; i < 15; i++) { if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) returntrue;
msleep(20);
}
if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
dev_err(&vf->pf->pdev->dev, "VF %d still in reset. Try again.\n", vf->vf_id); returnfalse;
}
returntrue;
}
/** * i40e_ndo_set_vf_mac * @netdev: network interface device structure * @vf_id: VF identifier * @mac: mac address * * program VF mac address
**/ 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; struct hlist_node *h; int bkt;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* validate the request */
ret = i40e_validate_vf(pf, vf_id); if (ret) goto error_param;
vf = &pf->vf[vf_id]; if (!i40e_check_vf_init_timeout(vf)) {
ret = -EAGAIN; goto error_param;
}
vsi = pf->vsi[vf->lan_vsi_idx];
if (is_multicast_ether_addr(mac)) {
dev_err(&pf->pdev->dev, "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
ret = -EINVAL; goto error_param;
}
/* Lock once because below invoked function add/del_filter requires * mac_filter_hash_lock to be held
*/
spin_lock_bh(&vsi->mac_filter_hash_lock);
/* delete the temporary mac address */ if (!is_zero_ether_addr(vf->default_lan_addr.addr))
i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
/* Delete all the filters for this VSI - we're going to kill it * anyway.
*/
hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
__i40e_del_filter(vsi, f);
spin_unlock_bh(&vsi->mac_filter_hash_lock);
/* program mac filter */ if (i40e_sync_vsi_filters(vsi)) {
dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
ret = -EIO; goto error_param;
}
ether_addr_copy(vf->default_lan_addr.addr, mac);
if (is_zero_ether_addr(mac)) {
vf->pf_set_mac = false;
dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
} else {
vf->pf_set_mac = true;
dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
mac, vf_id);
}
/* Force the VF interface down so it has to bring up with new MAC * address
*/
i40e_vc_reset_vf(vf, true);
dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* validate the request */
ret = i40e_validate_vf(pf, vf_id); if (ret) 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;
}
if (vlan_proto != htons(ETH_P_8021Q)) {
dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
ret = -EPROTONOSUPPORT; goto error_pvid;
}
vf = &pf->vf[vf_id]; if (!i40e_check_vf_init_timeout(vf)) {
ret = -EAGAIN; goto error_pvid;
}
vsi = pf->vsi[vf->lan_vsi_idx];
if (le16_to_cpu(vsi->info.pvid) == vlanprio) /* duplicate request, so just return success */ goto error_pvid;
i40e_vlan_stripping_enable(vsi);
/* Locked once because multiple functions below iterate list */
spin_lock_bh(&vsi->mac_filter_hash_lock);
/* Check for condition where there was already a port VLAN ID * filter set and now it is being deleted by setting it to zero. * Additionally check for the condition where there was a port * VLAN but now there is a new and different port VLAN being set. * 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.
*/ if ((!(vlan_id || qos) ||
vlanprio != le16_to_cpu(vsi->info.pvid)) &&
vsi->info.pvid) {
ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 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);
spin_unlock_bh(&vsi->mac_filter_hash_lock); goto error_pvid;
}
}
if (vsi->info.pvid) { /* remove all filters on the old VLAN */
i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
VLAN_VID_MASK));
}
spin_unlock_bh(&vsi->mac_filter_hash_lock);
/* disable promisc modes in case they were enabled */
ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
allmulti, alluni); if (ret) {
dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); goto error_pvid;
}
if (vlan_id || qos)
ret = i40e_vsi_add_pvid(vsi, vlanprio); else
i40e_vsi_remove_pvid(vsi);
spin_lock_bh(&vsi->mac_filter_hash_lock);
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 for each MAC */
ret = i40e_add_vlan_all_mac(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);
spin_unlock_bh(&vsi->mac_filter_hash_lock); goto error_pvid;
}
/* remove the previously added non-VLAN MAC filters */
i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
}
spin_unlock_bh(&vsi->mac_filter_hash_lock);
if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
alluni = true;
if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
allmulti = true;
/* Schedule the worker thread to take care of applying changes */
i40e_service_event_schedule(vsi->back);
if (ret) {
dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); goto error_pvid;
}
/* 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);
i40e_vc_reset_vf(vf, true); /* During reset the VF got a new VSI, so refresh a pointer. */
vsi = pf->vsi[vf->lan_vsi_idx];
ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); if (ret) {
dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); goto error_pvid;
}
/** * i40e_ndo_set_vf_bw * @netdev: network interface device structure * @vf_id: VF identifier * @min_tx_rate: Minimum Tx rate * @max_tx_rate: Maximum Tx rate * * configure VF Tx rate
**/ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, int max_tx_rate)
{ struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vsi *vsi; struct i40e_vf *vf; int ret = 0;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* validate the request */
ret = i40e_validate_vf(pf, vf_id); if (ret) goto error;
if (min_tx_rate) {
dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
min_tx_rate, vf_id);
ret = -EINVAL; goto error;
}
vf = &pf->vf[vf_id]; if (!i40e_check_vf_init_timeout(vf)) {
ret = -EAGAIN; goto error;
}
vsi = pf->vsi[vf->lan_vsi_idx];
ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); if (ret) goto error;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* validate the request */
ret = i40e_validate_vf(pf, vf_id); if (ret) goto error_param;
vf = &pf->vf[vf_id]; /* first vsi is always the LAN vsi */
vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi) {
ret = -ENOENT; goto error_param;
}
/** * i40e_ndo_set_vf_link_state * @netdev: network interface device structure * @vf_id: VF identifier * @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_link_status *ls = &pf->hw.phy.link_info; struct virtchnl_pf_event pfe; struct i40e_hw *hw = &pf->hw; struct i40e_vsi *vsi; unsignedlong q_map; struct i40e_vf *vf; int abs_vf_id; int ret = 0; int tmp;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* 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;
}
vsi = pf->vsi[vf->lan_vsi_idx];
q_map = BIT(vsi->num_queue_pairs) - 1;
vf->is_disabled_from_host = true;
/* Try to stop both Tx&Rx rings even if one of the calls fails * to ensure we stop the rings even in case of errors. * If any of them returns with an error then the first * error that occurred will be returned.
*/
tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);
ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);
ret = tmp ? tmp : ret; break; default:
ret = -EINVAL; goto error_out;
} /* Notify the VF of its new link state */
i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
0, (u8 *)&pfe, sizeof(pfe), NULL);
/** * i40e_ndo_set_vf_spoofchk * @netdev: network interface device structure * @vf_id: VF identifier * @enable: flag to enable or disable feature * * Enable or disable VF spoof checking
**/ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
{ 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;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* 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]); if (!i40e_check_vf_init_timeout(vf)) {
ret = -EAGAIN; goto out;
}
if (enable == vf->spoofchk) goto out;
vf->spoofchk = enable;
memset(&ctxt, 0, sizeof(ctxt));
ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
ctxt.pf_num = pf->hw.pf_id;
ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); if (enable)
ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
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:
clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); return ret;
}
/** * 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;
if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); return -EAGAIN;
}
/* 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;
}
if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
ret = -EINVAL; goto out;
}
vf = &pf->vf[vf_id];
if (setting == vf->trusted) goto out;
vf->trusted = setting;
/* request PF to sync mac/vlan filters for the VF */
set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);
pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
i40e_vc_reset_vf(vf, true);
dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
vf_id, setting ? "" : "un");
if (vf->adq_enabled) { if (!vf->trusted) {
dev_info(&pf->pdev->dev, "VF %u no longer Trusted, deleting all cloud filters\n",
vf_id);
i40e_del_all_cloud_filters(vf);
}
}
/** * i40e_get_vf_stats - populate some stats for the VF * @netdev: the netdev of the PF * @vf_id: the host OS identifier (0-127) * @vf_stats: pointer to the OS memory to be initialized
*/ int i40e_get_vf_stats(struct net_device *netdev, int vf_id, struct ifla_vf_stats *vf_stats)
{ struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_eth_stats *stats; struct i40e_vsi *vsi; struct i40e_vf *vf;
/* validate the request */ if (i40e_validate_vf(pf, vf_id)) return -EINVAL;
vf = &pf->vf[vf_id]; if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY;
}
vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi) return -EINVAL;
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