| /******************************************************************************* |
| * |
| * Intel Ethernet Controller XL710 Family Linux Driver |
| * Copyright(c) 2013 - 2014 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * The full GNU General Public License is included in this distribution in |
| * the file called "COPYING". |
| * |
| * Contact Information: |
| * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| ******************************************************************************/ |
| |
| #include "i40e.h" |
| |
| /***********************misc routines*****************************/ |
| |
| /** |
| * i40e_vc_disable_vf |
| * @pf: pointer to the pf info |
| * @vf: pointer to the vf info |
| * |
| * Disable the VF through a SW reset |
| **/ |
| static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf) |
| { |
| struct i40e_hw *hw = &pf->hw; |
| u32 reg; |
| |
| reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); |
| reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; |
| wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); |
| i40e_flush(hw); |
| } |
| |
| /** |
| * i40e_vc_isvalid_vsi_id |
| * @vf: pointer to the vf info |
| * @vsi_id: vf relative vsi id |
| * |
| * check for the valid vsi id |
| **/ |
| static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u8 vsi_id) |
| { |
| struct i40e_pf *pf = vf->pf; |
| |
| return pf->vsi[vsi_id]->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 |
| **/ |
| static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u8 vsi_id, |
| u8 qid) |
| { |
| struct i40e_pf *pf = vf->pf; |
| |
| return qid < pf->vsi[vsi_id]->num_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 |
| **/ |
| static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id) |
| { |
| struct i40e_pf *pf = vf->pf; |
| |
| return vector_id < pf->hw.func_caps.num_msix_vectors_vf; |
| } |
| |
| /***********************vf resource mgmt routines*****************/ |
| |
| /** |
| * i40e_vc_get_pf_queue_id |
| * @vf: pointer to the vf info |
| * @vsi_idx: index of VSI in PF struct |
| * @vsi_queue_id: vsi relative queue id |
| * |
| * return pf relative queue id |
| **/ |
| static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u8 vsi_idx, |
| u8 vsi_queue_id) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi = pf->vsi[vsi_idx]; |
| u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; |
| |
| if (le16_to_cpu(vsi->info.mapping_flags) & |
| I40E_AQ_VSI_QUE_MAP_NONCONTIG) |
| pf_queue_id = |
| le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); |
| else |
| pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + |
| vsi_queue_id; |
| |
| return pf_queue_id; |
| } |
| |
| /** |
| * i40e_config_irq_link_list |
| * @vf: pointer to the vf info |
| * @vsi_idx: index of VSI in PF struct |
| * @vecmap: irq map info |
| * |
| * configure irq link list from the map |
| **/ |
| static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx, |
| struct i40e_virtchnl_vector_map *vecmap) |
| { |
| unsigned long linklistmap = 0, tempmap; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| u16 vsi_queue_id, pf_queue_id; |
| enum i40e_queue_type qtype; |
| u16 next_q, vector_id; |
| u32 reg, reg_idx; |
| u16 itr_idx = 0; |
| |
| vector_id = vecmap->vector_id; |
| /* setup the head */ |
| if (0 == vector_id) |
| reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); |
| else |
| reg_idx = I40E_VPINT_LNKLSTN( |
| ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + |
| (vector_id - 1)); |
| |
| if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { |
| /* Special case - No queues mapped on this vector */ |
| wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); |
| goto irq_list_done; |
| } |
| tempmap = vecmap->rxq_map; |
| for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| linklistmap |= (1 << |
| (I40E_VIRTCHNL_SUPPORTED_QTYPES * |
| vsi_queue_id)); |
| } |
| |
| tempmap = vecmap->txq_map; |
| for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| linklistmap |= (1 << |
| (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id |
| + 1)); |
| } |
| |
| next_q = find_first_bit(&linklistmap, |
| (I40E_MAX_VSI_QP * |
| I40E_VIRTCHNL_SUPPORTED_QTYPES)); |
| vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id); |
| reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); |
| |
| wr32(hw, reg_idx, reg); |
| |
| while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { |
| switch (qtype) { |
| case I40E_QUEUE_TYPE_RX: |
| reg_idx = I40E_QINT_RQCTL(pf_queue_id); |
| itr_idx = vecmap->rxitr_idx; |
| break; |
| case I40E_QUEUE_TYPE_TX: |
| reg_idx = I40E_QINT_TQCTL(pf_queue_id); |
| itr_idx = vecmap->txitr_idx; |
| break; |
| default: |
| break; |
| } |
| |
| next_q = find_next_bit(&linklistmap, |
| (I40E_MAX_VSI_QP * |
| I40E_VIRTCHNL_SUPPORTED_QTYPES), |
| next_q + 1); |
| if (next_q < |
| (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { |
| vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, |
| vsi_queue_id); |
| } else { |
| pf_queue_id = I40E_QUEUE_END_OF_LIST; |
| qtype = 0; |
| } |
| |
| /* format for the RQCTL & TQCTL regs is same */ |
| reg = (vector_id) | |
| (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | |
| (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | |
| (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | |
| (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); |
| wr32(hw, reg_idx, reg); |
| } |
| |
| irq_list_done: |
| i40e_flush(hw); |
| } |
| |
| /** |
| * i40e_config_vsi_tx_queue |
| * @vf: pointer to the vf info |
| * @vsi_idx: index of VSI in PF struct |
| * @vsi_queue_id: vsi relative queue index |
| * @info: config. info |
| * |
| * configure tx queue |
| **/ |
| static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx, |
| u16 vsi_queue_id, |
| struct i40e_virtchnl_txq_info *info) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_hmc_obj_txq tx_ctx; |
| u16 pf_queue_id; |
| u32 qtx_ctl; |
| int ret = 0; |
| |
| pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id); |
| |
| /* clear the context structure first */ |
| memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); |
| |
| /* only set the required fields */ |
| tx_ctx.base = info->dma_ring_addr / 128; |
| tx_ctx.qlen = info->ring_len; |
| tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]); |
| tx_ctx.rdylist_act = 0; |
| tx_ctx.head_wb_ena = 1; |
| tx_ctx.head_wb_addr = info->dma_ring_addr + |
| (info->ring_len * sizeof(struct i40e_tx_desc)); |
| |
| /* 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 |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) |
| & I40E_QTX_CTL_PF_INDX_MASK); |
| qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) |
| << I40E_QTX_CTL_VFVM_INDX_SHIFT) |
| & I40E_QTX_CTL_VFVM_INDX_MASK); |
| wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); |
| i40e_flush(hw); |
| |
| error_context: |
| return ret; |
| } |
| |
| /** |
| * i40e_config_vsi_rx_queue |
| * @vf: pointer to the vf info |
| * @vsi_idx: index of VSI in PF struct |
| * @vsi_queue_id: vsi relative queue index |
| * @info: config. info |
| * |
| * configure rx queue |
| **/ |
| static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx, |
| u16 vsi_queue_id, |
| struct i40e_virtchnl_rxq_info *info) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_hmc_obj_rxq rx_ctx; |
| u16 pf_queue_id; |
| int ret = 0; |
| |
| pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id); |
| |
| /* clear the context structure first */ |
| memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); |
| |
| /* only set the required fields */ |
| rx_ctx.base = info->dma_ring_addr / 128; |
| rx_ctx.qlen = info->ring_len; |
| |
| if (info->splithdr_enabled) { |
| rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | |
| I40E_RX_SPLIT_IP | |
| I40E_RX_SPLIT_TCP_UDP | |
| I40E_RX_SPLIT_SCTP; |
| /* header length validation */ |
| if (info->hdr_size > ((2 * 1024) - 64)) { |
| ret = -EINVAL; |
| goto error_param; |
| } |
| rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; |
| |
| /* set splitalways mode 10b */ |
| rx_ctx.dtype = 0x2; |
| } |
| |
| /* databuffer length validation */ |
| if (info->databuffer_size > ((16 * 1024) - 128)) { |
| ret = -EINVAL; |
| goto error_param; |
| } |
| rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; |
| |
| /* max pkt. length validation */ |
| if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { |
| ret = -EINVAL; |
| goto error_param; |
| } |
| rx_ctx.rxmax = info->max_pkt_size; |
| |
| /* enable 32bytes desc always */ |
| rx_ctx.dsize = 1; |
| |
| /* default values */ |
| rx_ctx.tphrdesc_ena = 1; |
| rx_ctx.tphwdesc_ena = 1; |
| rx_ctx.tphdata_ena = 1; |
| rx_ctx.tphhead_ena = 1; |
| rx_ctx.lrxqthresh = 2; |
| rx_ctx.crcstrip = 1; |
| rx_ctx.prefena = 1; |
| |
| /* 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 |
| * @type: type of VSI to allocate |
| * |
| * alloc vf vsi context & resources |
| **/ |
| static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type) |
| { |
| struct i40e_mac_filter *f = NULL; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi; |
| int ret = 0; |
| |
| vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id); |
| |
| if (!vsi) { |
| dev_err(&pf->pdev->dev, |
| "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 (type == I40E_VSI_SRIOV) { |
| u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| vf->lan_vsi_index = vsi->idx; |
| vf->lan_vsi_id = vsi->id; |
| dev_info(&pf->pdev->dev, |
| "VF %d assigned LAN VSI index %d, VSI id %d\n", |
| vf->vf_id, vsi->idx, 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); |
| f = i40e_add_filter(vsi, vf->default_lan_addr.addr, |
| vf->port_vlan_id, true, false); |
| if (!f) |
| dev_info(&pf->pdev->dev, |
| "Could not allocate VF MAC addr\n"); |
| f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id, |
| true, false); |
| if (!f) |
| dev_info(&pf->pdev->dev, |
| "Could not allocate VF broadcast filter\n"); |
| } |
| |
| /* program mac filter */ |
| ret = i40e_sync_vsi_filters(vsi); |
| if (ret) |
| dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); |
| |
| /* Set VF bandwidth if specified */ |
| if (vf->tx_rate) { |
| ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, |
| vf->tx_rate / 50, 0, NULL); |
| if (ret) |
| dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", |
| vf->vf_id, ret); |
| } |
| |
| error_alloc_vsi_res: |
| return ret; |
| } |
| |
| /** |
| * i40e_enable_vf_mappings |
| * @vf: pointer to the vf info |
| * |
| * enable vf mappings |
| **/ |
| static void i40e_enable_vf_mappings(struct i40e_vf *vf) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| u32 reg, total_queue_pairs = 0; |
| int j; |
| |
| /* Tell the hardware we're using noncontiguous mapping. HW requires |
| * that VF queues be mapped using this method, even when they are |
| * contiguous in real life |
| */ |
| wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), |
| I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); |
| |
| /* enable VF vplan_qtable mappings */ |
| reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; |
| wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); |
| |
| /* map PF queues to VF queues */ |
| for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) { |
| u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j); |
| reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); |
| wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); |
| total_queue_pairs++; |
| } |
| |
| /* map PF queues to VSI */ |
| for (j = 0; j < 7; j++) { |
| if (j * 2 >= pf->vsi[vf->lan_vsi_index]->num_queue_pairs) { |
| reg = 0x07FF07FF; /* unused */ |
| } else { |
| u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, |
| j * 2); |
| reg = qid; |
| qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, |
| (j * 2) + 1); |
| reg |= qid << 16; |
| } |
| wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg); |
| } |
| |
| i40e_flush(hw); |
| } |
| |
| /** |
| * i40e_disable_vf_mappings |
| * @vf: pointer to the vf info |
| * |
| * disable vf mappings |
| **/ |
| static void i40e_disable_vf_mappings(struct i40e_vf *vf) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| int i; |
| |
| /* disable qp mappings */ |
| wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); |
| for (i = 0; i < I40E_MAX_VSI_QP; i++) |
| wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), |
| I40E_QUEUE_END_OF_LIST); |
| i40e_flush(hw); |
| } |
| |
| /** |
| * i40e_free_vf_res |
| * @vf: pointer to the vf info |
| * |
| * free vf resources |
| **/ |
| static void 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, msix_vf; |
| |
| /* free vsi & disconnect it from the parent uplink */ |
| if (vf->lan_vsi_index) { |
| i40e_vsi_release(pf->vsi[vf->lan_vsi_index]); |
| vf->lan_vsi_index = 0; |
| vf->lan_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 varibles keeping |
| * track of the resources |
| */ |
| vf->num_queue_pairs = 0; |
| vf->vf_states = 0; |
| } |
| |
| /** |
| * i40e_alloc_vf_res |
| * @vf: pointer to the vf info |
| * |
| * allocate vf resources |
| **/ |
| static int i40e_alloc_vf_res(struct i40e_vf *vf) |
| { |
| struct i40e_pf *pf = vf->pf; |
| int total_queue_pairs = 0; |
| int ret; |
| |
| /* allocate hw vsi context & associated resources */ |
| ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); |
| if (ret) |
| goto error_alloc; |
| total_queue_pairs += pf->vsi[vf->lan_vsi_index]->num_queue_pairs; |
| set_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_STAT_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. |
| **/ |
| static int i40e_quiesce_vf_pci(struct i40e_vf *vf) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| int vf_abs_id, i; |
| u32 reg; |
| |
| 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_reset_vf |
| * @vf: pointer to the vf structure |
| * @flr: VFLR was issued or not |
| * |
| * reset the vf |
| **/ |
| void i40e_reset_vf(struct i40e_vf *vf, bool flr) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| bool rsd = false; |
| int i; |
| u32 reg; |
| |
| /* warn the VF */ |
| clear_bit(I40E_VF_STAT_ACTIVE, &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) { |
| /* reset vf using VPGEN_VFRTRIG reg */ |
| reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); |
| reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; |
| wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); |
| i40e_flush(hw); |
| } |
| |
| if (i40e_quiesce_vf_pci(vf)) |
| dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", |
| vf->vf_id); |
| |
| /* poll VPGEN_VFRSTAT reg to make sure |
| * that reset is complete |
| */ |
| for (i = 0; i < 100; i++) { |
| /* vf reset requires driver to first reset the |
| * vf & than poll the status register to make sure |
| * that the requested op was completed |
| * successfully |
| */ |
| udelay(10); |
| reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); |
| if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { |
| rsd = true; |
| break; |
| } |
| } |
| |
| if (!rsd) |
| dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", |
| vf->vf_id); |
| wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED); |
| /* clear the reset bit in the VPGEN_VFRTRIG reg */ |
| reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); |
| reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; |
| wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); |
| |
| /* On initial reset, we won't have any queues */ |
| if (vf->lan_vsi_index == 0) |
| goto complete_reset; |
| |
| i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_index], false); |
| complete_reset: |
| /* reallocate vf resources to reset the VSI state */ |
| i40e_free_vf_res(vf); |
| i40e_alloc_vf_res(vf); |
| i40e_enable_vf_mappings(vf); |
| set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); |
| |
| /* tell the VF the reset is done */ |
| wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); |
| i40e_flush(hw); |
| } |
| |
| /** |
| * i40e_vfs_are_assigned |
| * @pf: pointer to the pf structure |
| * |
| * Determine if any VFs are assigned to VMs |
| **/ |
| static bool i40e_vfs_are_assigned(struct i40e_pf *pf) |
| { |
| struct pci_dev *pdev = pf->pdev; |
| struct pci_dev *vfdev; |
| |
| /* loop through all the VFs to see if we own any that are assigned */ |
| vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, I40E_DEV_ID_VF , NULL); |
| while (vfdev) { |
| /* if we don't own it we don't care */ |
| if (vfdev->is_virtfn && pci_physfn(vfdev) == pdev) { |
| /* if it is assigned we cannot release it */ |
| if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) |
| return true; |
| } |
| |
| vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
| I40E_DEV_ID_VF, |
| vfdev); |
| } |
| |
| return false; |
| } |
| #ifdef CONFIG_PCI_IOV |
| |
| /** |
| * i40e_enable_pf_switch_lb |
| * @pf: pointer to the pf structure |
| * |
| * enable switch loop back or die - no point in a return value |
| **/ |
| static void i40e_enable_pf_switch_lb(struct i40e_pf *pf) |
| { |
| struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
| struct i40e_vsi_context ctxt; |
| int aq_ret; |
| |
| ctxt.seid = pf->main_vsi_seid; |
| ctxt.pf_num = pf->hw.pf_id; |
| ctxt.vf_num = 0; |
| aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); |
| if (aq_ret) { |
| dev_info(&pf->pdev->dev, |
| "%s couldn't get pf vsi config, err %d, aq_err %d\n", |
| __func__, aq_ret, pf->hw.aq.asq_last_status); |
| return; |
| } |
| ctxt.flags = I40E_AQ_VSI_TYPE_PF; |
| ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); |
| ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); |
| |
| aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
| if (aq_ret) { |
| dev_info(&pf->pdev->dev, |
| "%s: update vsi switch failed, aq_err=%d\n", |
| __func__, vsi->back->hw.aq.asq_last_status); |
| } |
| } |
| #endif |
| |
| /** |
| * i40e_disable_pf_switch_lb |
| * @pf: pointer to the pf structure |
| * |
| * disable switch loop back or die - no point in a return value |
| **/ |
| static void i40e_disable_pf_switch_lb(struct i40e_pf *pf) |
| { |
| struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
| struct i40e_vsi_context ctxt; |
| int aq_ret; |
| |
| ctxt.seid = pf->main_vsi_seid; |
| ctxt.pf_num = pf->hw.pf_id; |
| ctxt.vf_num = 0; |
| aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); |
| if (aq_ret) { |
| dev_info(&pf->pdev->dev, |
| "%s couldn't get pf vsi config, err %d, aq_err %d\n", |
| __func__, aq_ret, pf->hw.aq.asq_last_status); |
| return; |
| } |
| ctxt.flags = I40E_AQ_VSI_TYPE_PF; |
| ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID); |
| ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB); |
| |
| aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); |
| if (aq_ret) { |
| dev_info(&pf->pdev->dev, |
| "%s: update vsi switch failed, aq_err=%d\n", |
| __func__, vsi->back->hw.aq.asq_last_status); |
| } |
| } |
| |
| /** |
| * 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; |
| |
| /* Disable interrupt 0 so we don't try to handle the VFLR. */ |
| i40e_irq_dynamic_disable_icr0(pf); |
| |
| mdelay(10); /* let any messages in transit get finished up */ |
| /* 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_STAT_INIT, &pf->vf[i].vf_states)) |
| i40e_free_vf_res(&pf->vf[i]); |
| /* disable qp mappings */ |
| i40e_disable_vf_mappings(&pf->vf[i]); |
| } |
| |
| kfree(pf->vf); |
| pf->vf = NULL; |
| |
| /* 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 (!i40e_vfs_are_assigned(pf)) { |
| pci_disable_sriov(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), (1 << bit_idx)); |
| } |
| i40e_disable_pf_switch_lb(pf); |
| } else { |
| dev_warn(&pf->pdev->dev, |
| "unable to disable SR-IOV because VFs are assigned.\n"); |
| } |
| |
| /* Re-enable interrupt 0. */ |
| i40e_irq_dynamic_enable_icr0(pf); |
| } |
| |
| #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) { |
| dev_err(&pf->pdev->dev, |
| "Failed to enable SR-IOV, error %d.\n", ret); |
| 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; |
| } |
| |
| /* apply default profile */ |
| for (i = 0; i < num_alloc_vfs; i++) { |
| vfs[i].pf = pf; |
| vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; |
| vfs[i].vf_id = i; |
| |
| /* assign default capabilities */ |
| set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); |
| /* vf resources get allocated during reset */ |
| i40e_reset_vf(&vfs[i], false); |
| |
| /* enable vf vplan_qtable mappings */ |
| i40e_enable_vf_mappings(&vfs[i]); |
| } |
| pf->vf = vfs; |
| pf->num_alloc_vfs = num_alloc_vfs; |
| |
| i40e_enable_pf_switch_lb(pf); |
| err_alloc: |
| if (ret) |
| i40e_free_vfs(pf); |
| err_iov: |
| /* Re-enable interrupt 0. */ |
| i40e_irq_dynamic_enable_icr0(pf); |
| return ret; |
| } |
| |
| #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 |
| **/ |
| static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) |
| { |
| #ifdef CONFIG_PCI_IOV |
| struct i40e_pf *pf = pci_get_drvdata(pdev); |
| int pre_existing_vfs = pci_num_vf(pdev); |
| int err = 0; |
| |
| dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); |
| if (pre_existing_vfs && pre_existing_vfs != num_vfs) |
| i40e_free_vfs(pf); |
| else if (pre_existing_vfs && pre_existing_vfs == num_vfs) |
| goto out; |
| |
| if (num_vfs > pf->num_req_vfs) { |
| err = -EPERM; |
| goto err_out; |
| } |
| |
| err = i40e_alloc_vfs(pf, num_vfs); |
| if (err) { |
| dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); |
| goto err_out; |
| } |
| |
| out: |
| return num_vfs; |
| |
| err_out: |
| return err; |
| #endif |
| return 0; |
| } |
| |
| /** |
| * i40e_pci_sriov_configure |
| * @pdev: pointer to a pci_dev structure |
| * @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); |
| |
| if (num_vfs) |
| return i40e_pci_sriov_enable(pdev, num_vfs); |
| |
| if (!i40e_vfs_are_assigned(pf)) { |
| i40e_free_vfs(pf); |
| } else { |
| dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /***********************virtual channel routines******************/ |
| |
| /** |
| * i40e_vc_send_msg_to_vf |
| * @vf: pointer to the vf info |
| * @v_opcode: virtual channel opcode |
| * @v_retval: virtual channel return value |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * send msg to vf |
| **/ |
| static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, |
| u32 v_retval, u8 *msg, u16 msglen) |
| { |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| int true_vf_id = vf->vf_id + hw->func_caps.vf_base_id; |
| i40e_status aq_ret; |
| |
| /* single place to detect unsuccessful return values */ |
| if (v_retval) { |
| vf->num_invalid_msgs++; |
| dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n", |
| v_opcode, v_retval); |
| if (vf->num_invalid_msgs > |
| I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { |
| dev_err(&pf->pdev->dev, |
| "Number of invalid messages exceeded for VF %d\n", |
| vf->vf_id); |
| dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); |
| set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); |
| } |
| } else { |
| vf->num_valid_msgs++; |
| } |
| |
| aq_ret = i40e_aq_send_msg_to_vf(hw, true_vf_id, v_opcode, v_retval, |
| msg, msglen, NULL); |
| if (aq_ret) { |
| dev_err(&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 |
| **/ |
| static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, |
| enum i40e_virtchnl_ops opcode, |
| i40e_status retval) |
| { |
| return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); |
| } |
| |
| /** |
| * i40e_vc_get_version_msg |
| * @vf: pointer to the vf info |
| * |
| * called from the vf to request the API version used by the PF |
| **/ |
| static int i40e_vc_get_version_msg(struct i40e_vf *vf) |
| { |
| struct i40e_virtchnl_version_info info = { |
| I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR |
| }; |
| |
| return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, |
| I40E_SUCCESS, (u8 *)&info, |
| sizeof(struct |
| i40e_virtchnl_version_info)); |
| } |
| |
| /** |
| * i40e_vc_get_vf_resources_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to request its resources |
| **/ |
| static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf) |
| { |
| struct i40e_virtchnl_vf_resource *vfres = NULL; |
| struct i40e_pf *pf = vf->pf; |
| i40e_status aq_ret = 0; |
| struct i40e_vsi *vsi; |
| int i = 0, len = 0; |
| int num_vsis = 1; |
| int ret; |
| |
| if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto err; |
| } |
| |
| len = (sizeof(struct i40e_virtchnl_vf_resource) + |
| sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); |
| |
| vfres = kzalloc(len, GFP_KERNEL); |
| if (!vfres) { |
| aq_ret = I40E_ERR_NO_MEMORY; |
| len = 0; |
| goto err; |
| } |
| |
| vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; |
| vsi = pf->vsi[vf->lan_vsi_index]; |
| if (!vsi->info.pvid) |
| vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; |
| |
| vfres->num_vsis = num_vsis; |
| vfres->num_queue_pairs = vf->num_queue_pairs; |
| vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; |
| if (vf->lan_vsi_index) { |
| vfres->vsi_res[i].vsi_id = vf->lan_vsi_index; |
| vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV; |
| vfres->vsi_res[i].num_queue_pairs = |
| pf->vsi[vf->lan_vsi_index]->num_queue_pairs; |
| memcpy(vfres->vsi_res[i].default_mac_addr, |
| vf->default_lan_addr.addr, ETH_ALEN); |
| i++; |
| } |
| set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); |
| |
| err: |
| /* send the response back to the vf */ |
| ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, |
| aq_ret, (u8 *)vfres, len); |
| |
| kfree(vfres); |
| return ret; |
| } |
| |
| /** |
| * i40e_vc_reset_vf_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to reset itself, |
| * unlike other virtchnl messages, pf driver |
| * doesn't send the response back to the vf |
| **/ |
| static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) |
| { |
| if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) |
| i40e_reset_vf(vf, false); |
| } |
| |
| /** |
| * i40e_vc_config_promiscuous_mode_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to configure the promiscuous mode of |
| * vf vsis |
| **/ |
| static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, |
| u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_promisc_info *info = |
| (struct i40e_virtchnl_promisc_info *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_hw *hw = &pf->hw; |
| bool allmulti = false; |
| bool promisc = false; |
| i40e_status aq_ret; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || |
| !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || |
| !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || |
| (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC) |
| promisc = true; |
| aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, info->vsi_id, |
| promisc, NULL); |
| if (aq_ret) |
| goto error_param; |
| |
| if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) |
| allmulti = true; |
| aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, info->vsi_id, |
| allmulti, NULL); |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, |
| I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, |
| aq_ret); |
| } |
| |
| /** |
| * i40e_vc_config_queues_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to configure the rx/tx |
| * queues |
| **/ |
| static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_vsi_queue_config_info *qci = |
| (struct i40e_virtchnl_vsi_queue_config_info *)msg; |
| struct i40e_virtchnl_queue_pair_info *qpi; |
| u16 vsi_id, vsi_queue_id; |
| i40e_status aq_ret = 0; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| vsi_id = qci->vsi_id; |
| if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| for (i = 0; i < qci->num_queue_pairs; i++) { |
| qpi = &qci->qpair[i]; |
| vsi_queue_id = qpi->txq.queue_id; |
| if ((qpi->txq.vsi_id != vsi_id) || |
| (qpi->rxq.vsi_id != vsi_id) || |
| (qpi->rxq.queue_id != vsi_queue_id) || |
| !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, |
| &qpi->rxq) || |
| i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, |
| &qpi->txq)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| } |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, |
| aq_ret); |
| } |
| |
| /** |
| * i40e_vc_config_irq_map_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to configure the irq to |
| * queue map |
| **/ |
| static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_irq_map_info *irqmap_info = |
| (struct i40e_virtchnl_irq_map_info *)msg; |
| struct i40e_virtchnl_vector_map *map; |
| u16 vsi_id, vsi_queue_id, vector_id; |
| i40e_status aq_ret = 0; |
| unsigned long tempmap; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| for (i = 0; i < irqmap_info->num_vectors; i++) { |
| map = &irqmap_info->vecmap[i]; |
| |
| vector_id = map->vector_id; |
| vsi_id = map->vsi_id; |
| /* validate msg params */ |
| if (!i40e_vc_isvalid_vector_id(vf, vector_id) || |
| !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| /* lookout for the invalid queue index */ |
| tempmap = map->rxq_map; |
| for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| if (!i40e_vc_isvalid_queue_id(vf, vsi_id, |
| vsi_queue_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| } |
| |
| tempmap = map->txq_map; |
| for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| if (!i40e_vc_isvalid_queue_id(vf, vsi_id, |
| vsi_queue_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| } |
| |
| i40e_config_irq_link_list(vf, vsi_id, map); |
| } |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, |
| aq_ret); |
| } |
| |
| /** |
| * i40e_vc_enable_queues_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to enable all or specific queue(s) |
| **/ |
| static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_queue_select *vqs = |
| (struct i40e_virtchnl_queue_select *)msg; |
| struct i40e_pf *pf = vf->pf; |
| u16 vsi_id = vqs->vsi_id; |
| i40e_status aq_ret = 0; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| if (i40e_vsi_control_rings(pf->vsi[vsi_id], true)) |
| aq_ret = I40E_ERR_TIMEOUT; |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, |
| aq_ret); |
| } |
| |
| /** |
| * i40e_vc_disable_queues_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to disable all or specific |
| * queue(s) |
| **/ |
| static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_queue_select *vqs = |
| (struct i40e_virtchnl_queue_select *)msg; |
| struct i40e_pf *pf = vf->pf; |
| u16 vsi_id = vqs->vsi_id; |
| i40e_status aq_ret = 0; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| if (i40e_vsi_control_rings(pf->vsi[vsi_id], false)) |
| aq_ret = I40E_ERR_TIMEOUT; |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, |
| aq_ret); |
| } |
| |
| /** |
| * i40e_vc_get_stats_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * called from the vf to get vsi stats |
| **/ |
| static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_queue_select *vqs = |
| (struct i40e_virtchnl_queue_select *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_eth_stats stats; |
| i40e_status aq_ret = 0; |
| struct i40e_vsi *vsi; |
| |
| memset(&stats, 0, sizeof(struct i40e_eth_stats)); |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| vsi = pf->vsi[vqs->vsi_id]; |
| if (!vsi) { |
| aq_ret = I40E_ERR_PARAM; |
| 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, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, |
| (u8 *)&stats, sizeof(stats)); |
| } |
| |
| /** |
| * i40e_check_vf_permission |
| * @vf: pointer to the vf info |
| * @macaddr: pointer to the MAC Address being checked |
| * |
| * Check if the VF has permission to add or delete unicast MAC address |
| * filters and return error code -EPERM if not. Then check if the |
| * address filter requested is broadcast or zero and if so return |
| * an invalid MAC address error code. |
| **/ |
| static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) |
| { |
| struct i40e_pf *pf = vf->pf; |
| int ret = 0; |
| |
| if (is_broadcast_ether_addr(macaddr) || |
| is_zero_ether_addr(macaddr)) { |
| dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); |
| ret = I40E_ERR_INVALID_MAC_ADDR; |
| } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && |
| !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { |
| /* 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. |
| * The VF may request to set the MAC address filter already |
| * assigned to it so do not return an error in that case. |
| */ |
| dev_err(&pf->pdev->dev, |
| "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n"); |
| ret = -EPERM; |
| } |
| return ret; |
| } |
| |
| /** |
| * i40e_vc_add_mac_addr_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * add guest mac address filter |
| **/ |
| static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_ether_addr_list *al = |
| (struct i40e_virtchnl_ether_addr_list *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi = NULL; |
| u16 vsi_id = al->vsi_id; |
| i40e_status ret = 0; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || |
| !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || |
| !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| for (i = 0; i < al->num_elements; i++) { |
| ret = i40e_check_vf_permission(vf, al->list[i].addr); |
| if (ret) |
| goto error_param; |
| } |
| vsi = pf->vsi[vsi_id]; |
| |
| /* add new addresses to the list */ |
| for (i = 0; i < al->num_elements; i++) { |
| struct i40e_mac_filter *f; |
| |
| f = i40e_find_mac(vsi, al->list[i].addr, true, false); |
| if (!f) { |
| if (i40e_is_vsi_in_vlan(vsi)) |
| f = i40e_put_mac_in_vlan(vsi, al->list[i].addr, |
| true, false); |
| else |
| f = i40e_add_filter(vsi, al->list[i].addr, -1, |
| true, false); |
| } |
| |
| if (!f) { |
| dev_err(&pf->pdev->dev, |
| "Unable to add VF MAC filter\n"); |
| ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| } |
| |
| /* program the updated filter list */ |
| if (i40e_sync_vsi_filters(vsi)) |
| dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n"); |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, |
| ret); |
| } |
| |
| /** |
| * i40e_vc_del_mac_addr_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * remove guest mac address filter |
| **/ |
| static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_ether_addr_list *al = |
| (struct i40e_virtchnl_ether_addr_list *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi = NULL; |
| u16 vsi_id = al->vsi_id; |
| i40e_status ret = 0; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || |
| !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || |
| !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| ret = I40E_ERR_PARAM; |
| 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 VF MAC addr %pM\n", |
| al->list[i].addr); |
| ret = I40E_ERR_INVALID_MAC_ADDR; |
| goto error_param; |
| } |
| } |
| vsi = pf->vsi[vsi_id]; |
| |
| /* delete addresses from the list */ |
| for (i = 0; i < al->num_elements; i++) |
| i40e_del_filter(vsi, al->list[i].addr, |
| I40E_VLAN_ANY, true, false); |
| |
| /* program the updated filter list */ |
| if (i40e_sync_vsi_filters(vsi)) |
| dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n"); |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, |
| ret); |
| } |
| |
| /** |
| * i40e_vc_add_vlan_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * program guest vlan id |
| **/ |
| static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_vlan_filter_list *vfl = |
| (struct i40e_virtchnl_vlan_filter_list *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi = NULL; |
| u16 vsi_id = vfl->vsi_id; |
| i40e_status aq_ret = 0; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || |
| !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || |
| !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| for (i = 0; i < vfl->num_elements; i++) { |
| if (vfl->vlan_id[i] > I40E_MAX_VLANID) { |
| aq_ret = I40E_ERR_PARAM; |
| dev_err(&pf->pdev->dev, |
| "invalid VF VLAN id %d\n", vfl->vlan_id[i]); |
| goto error_param; |
| } |
| } |
| vsi = pf->vsi[vsi_id]; |
| if (vsi->info.pvid) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| i40e_vlan_stripping_enable(vsi); |
| for (i = 0; i < vfl->num_elements; i++) { |
| /* add new VLAN filter */ |
| int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); |
| if (ret) |
| dev_err(&pf->pdev->dev, |
| "Unable to add VF vlan filter %d, error %d\n", |
| vfl->vlan_id[i], ret); |
| } |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); |
| } |
| |
| /** |
| * i40e_vc_remove_vlan_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * remove programmed guest vlan id |
| **/ |
| static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| { |
| struct i40e_virtchnl_vlan_filter_list *vfl = |
| (struct i40e_virtchnl_vlan_filter_list *)msg; |
| struct i40e_pf *pf = vf->pf; |
| struct i40e_vsi *vsi = NULL; |
| u16 vsi_id = vfl->vsi_id; |
| i40e_status aq_ret = 0; |
| int i; |
| |
| if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || |
| !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || |
| !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| for (i = 0; i < vfl->num_elements; i++) { |
| if (vfl->vlan_id[i] > I40E_MAX_VLANID) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| } |
| |
| vsi = pf->vsi[vsi_id]; |
| if (vsi->info.pvid) { |
| aq_ret = I40E_ERR_PARAM; |
| goto error_param; |
| } |
| |
| for (i = 0; i < vfl->num_elements; i++) { |
| int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); |
| if (ret) |
| dev_err(&pf->pdev->dev, |
| "Unable to delete VF vlan filter %d, error %d\n", |
| vfl->vlan_id[i], ret); |
| } |
| |
| error_param: |
| /* send the response to the vf */ |
| return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); |
| } |
| |
| /** |
| * i40e_vc_validate_vf_msg |
| * @vf: pointer to the vf info |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * @msghndl: msg handle |
| * |
| * validate msg |
| **/ |
| static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, |
| u32 v_retval, u8 *msg, u16 msglen) |
| { |
| bool err_msg_format = false; |
| int valid_len; |
| |
| /* Check if VF is disabled. */ |
| if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states)) |
| return I40E_ERR_PARAM; |
| |
| /* Validate message length. */ |
| switch (v_opcode) { |
| case I40E_VIRTCHNL_OP_VERSION: |
| valid_len = sizeof(struct i40e_virtchnl_version_info); |
| break; |
| case I40E_VIRTCHNL_OP_RESET_VF: |
| case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: |
| valid_len = 0; |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: |
| valid_len = sizeof(struct i40e_virtchnl_txq_info); |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: |
| valid_len = sizeof(struct i40e_virtchnl_rxq_info); |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: |
| valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); |
| if (msglen >= valid_len) { |
| struct i40e_virtchnl_vsi_queue_config_info *vqc = |
| (struct i40e_virtchnl_vsi_queue_config_info *)msg; |
| valid_len += (vqc->num_queue_pairs * |
| sizeof(struct |
| i40e_virtchnl_queue_pair_info)); |
| if (vqc->num_queue_pairs == 0) |
| err_msg_format = true; |
| } |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: |
| valid_len = sizeof(struct i40e_virtchnl_irq_map_info); |
| if (msglen >= valid_len) { |
| struct i40e_virtchnl_irq_map_info *vimi = |
| (struct i40e_virtchnl_irq_map_info *)msg; |
| valid_len += (vimi->num_vectors * |
| sizeof(struct i40e_virtchnl_vector_map)); |
| if (vimi->num_vectors == 0) |
| err_msg_format = true; |
| } |
| break; |
| case I40E_VIRTCHNL_OP_ENABLE_QUEUES: |
| case I40E_VIRTCHNL_OP_DISABLE_QUEUES: |
| valid_len = sizeof(struct i40e_virtchnl_queue_select); |
| break; |
| case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: |
| case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: |
| valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); |
| if (msglen >= valid_len) { |
| struct i40e_virtchnl_ether_addr_list *veal = |
| (struct i40e_virtchnl_ether_addr_list *)msg; |
| valid_len += veal->num_elements * |
| sizeof(struct i40e_virtchnl_ether_addr); |
| if (veal->num_elements == 0) |
| err_msg_format = true; |
| } |
| break; |
| case I40E_VIRTCHNL_OP_ADD_VLAN: |
| case I40E_VIRTCHNL_OP_DEL_VLAN: |
| valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); |
| if (msglen >= valid_len) { |
| struct i40e_virtchnl_vlan_filter_list *vfl = |
| (struct i40e_virtchnl_vlan_filter_list *)msg; |
| valid_len += vfl->num_elements * sizeof(u16); |
| if (vfl->num_elements == 0) |
| err_msg_format = true; |
| } |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: |
| valid_len = sizeof(struct i40e_virtchnl_promisc_info); |
| break; |
| case I40E_VIRTCHNL_OP_GET_STATS: |
| valid_len = sizeof(struct i40e_virtchnl_queue_select); |
| break; |
| /* These are always errors coming from the VF. */ |
| case I40E_VIRTCHNL_OP_EVENT: |
| case I40E_VIRTCHNL_OP_UNKNOWN: |
| default: |
| return -EPERM; |
| break; |
| } |
| /* few more checks */ |
| if ((valid_len != msglen) || (err_msg_format)) { |
| i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); |
| return -EINVAL; |
| } else { |
| return 0; |
| } |
| } |
| |
| /** |
| * i40e_vc_process_vf_msg |
| * @pf: pointer to the pf structure |
| * @vf_id: source vf id |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * @msghndl: msg handle |
| * |
| * called from the common aeq/arq handler to |
| * process request from vf |
| **/ |
| int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode, |
| u32 v_retval, u8 *msg, u16 msglen) |
| { |
| struct i40e_hw *hw = &pf->hw; |
| unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id; |
| struct i40e_vf *vf; |
| int ret; |
| |
| pf->vf_aq_requests++; |
| if (local_vf_id >= pf->num_alloc_vfs) |
| return -EINVAL; |
| vf = &(pf->vf[local_vf_id]); |
| /* perform basic checks on the msg */ |
| ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); |
| |
| if (ret) { |
| 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 I40E_VIRTCHNL_OP_VERSION: |
| ret = i40e_vc_get_version_msg(vf); |
| break; |
| case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: |
| ret = i40e_vc_get_vf_resources_msg(vf); |
| break; |
| case I40E_VIRTCHNL_OP_RESET_VF: |
| i40e_vc_reset_vf_msg(vf); |
| ret = 0; |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: |
| ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: |
| ret = i40e_vc_config_queues_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: |
| ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_ENABLE_QUEUES: |
| ret = i40e_vc_enable_queues_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_DISABLE_QUEUES: |
| ret = i40e_vc_disable_queues_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: |
| ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: |
| ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_ADD_VLAN: |
| ret = i40e_vc_add_vlan_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_DEL_VLAN: |
| ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); |
| break; |
| case I40E_VIRTCHNL_OP_GET_STATS: |
| ret = i40e_vc_get_stats_msg(vf, msg, msglen); |
| break; |
| case I40E_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, |
| I40E_ERR_NOT_IMPLEMENTED); |
| 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) |
| { |
| u32 reg, reg_idx, bit_idx, vf_id; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_vf *vf; |
| |
| if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) |
| return 0; |
| |
| 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 & (1 << bit_idx)) { |
| /* clear the bit in GLGEN_VFLRSTAT */ |
| wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx)); |
| |
| if (!test_bit(__I40E_DOWN, &pf->state)) |
| i40e_reset_vf(vf, true); |
| } |
| } |
| |
| /* re-enable vflr interrupt cause */ |
| reg = rd32(hw, I40E_PFINT_ICR0_ENA); |
| reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; |
| wr32(hw, I40E_PFINT_ICR0_ENA, reg); |
| i40e_flush(hw); |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_vc_vf_broadcast |
| * @pf: pointer to the pf structure |
| * @opcode: operation code |
| * @retval: return value |
| * @msg: pointer to the msg buffer |
| * @msglen: msg length |
| * |
| * send a message to all VFs on a given PF |
| **/ |
| static void i40e_vc_vf_broadcast(struct i40e_pf *pf, |
| enum i40e_virtchnl_ops v_opcode, |
| i40e_status v_retval, u8 *msg, |
| u16 msglen) |
| { |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_vf *vf = pf->vf; |
| int i; |
| |
| for (i = 0; i < pf->num_alloc_vfs; i++) { |
| /* 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, vf->vf_id, v_opcode, v_retval, |
| msg, msglen, NULL); |
| vf++; |
| } |
| } |
| |
| /** |
| * 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) |
| { |
| struct i40e_virtchnl_pf_event pfe; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_vf *vf = pf->vf; |
| struct i40e_link_status *ls = &pf->hw.phy.link_info; |
| int i; |
| |
| pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; |
| pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; |
| for (i = 0; i < pf->num_alloc_vfs; i++) { |
| if (vf->link_forced) { |
| pfe.event_data.link_event.link_status = vf->link_up; |
| pfe.event_data.link_event.link_speed = |
| (vf->link_up ? I40E_LINK_SPEED_40GB : 0); |
| } else { |
| pfe.event_data.link_event.link_status = |
| ls->link_info & I40E_AQ_LINK_UP; |
| pfe.event_data.link_event.link_speed = ls->link_speed; |
| } |
| i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT, |
| 0, (u8 *)&pfe, sizeof(pfe), |
| NULL); |
| vf++; |
| } |
| } |
| |
| /** |
| * i40e_vc_notify_reset |
| * @pf: pointer to the pf structure |
| * |
| * indicate a pending reset to all VFs on a given PF |
| **/ |
| void i40e_vc_notify_reset(struct i40e_pf *pf) |
| { |
| struct i40e_virtchnl_pf_event pfe; |
| |
| pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; |
| pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; |
| i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS, |
| (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event)); |
| } |
| |
| /** |
| * i40e_vc_notify_vf_reset |
| * @vf: pointer to the vf structure |
| * |
| * indicate a pending reset to the given VF |
| **/ |
| void i40e_vc_notify_vf_reset(struct i40e_vf *vf) |
| { |
| struct i40e_virtchnl_pf_event pfe; |
| |
| pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; |
| pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; |
| i40e_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT, |
| I40E_SUCCESS, (u8 *)&pfe, |
| sizeof(struct i40e_virtchnl_pf_event), NULL); |
| } |
| |
| /** |
| * 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; |
| |
| /* validate the request */ |
| if (vf_id >= pf->num_alloc_vfs) { |
| dev_err(&pf->pdev->dev, |
| "Invalid VF Identifier %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_param; |
| } |
| |
| vf = &(pf->vf[vf_id]); |
| vsi = pf->vsi[vf->lan_vsi_index]; |
| if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { |
| dev_err(&pf->pdev->dev, |
| "Uninitialized VF %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_param; |
| } |
| |
| if (!is_valid_ether_addr(mac)) { |
| dev_err(&pf->pdev->dev, |
| "Invalid VF ethernet address\n"); |
| ret = -EINVAL; |
| goto error_param; |
| } |
| |
| /* delete the temporary mac address */ |
| i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id, |
| true, false); |
| |
| /* add the new mac address */ |
| f = i40e_add_filter(vsi, mac, vf->port_vlan_id, true, false); |
| if (!f) { |
| dev_err(&pf->pdev->dev, |
| "Unable to add VF ucast filter\n"); |
| ret = -ENOMEM; |
| goto error_param; |
| } |
| |
| dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); |
| /* 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; |
| } |
| memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN); |
| vf->pf_set_mac = true; |
| dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); |
| ret = 0; |
| |
| error_param: |
| return ret; |
| } |
| |
| /** |
| * i40e_ndo_set_vf_port_vlan |
| * @netdev: network interface device structure |
| * @vf_id: vf identifier |
| * @vlan_id: mac address |
| * @qos: priority setting |
| * |
| * program vf vlan id and/or qos |
| **/ |
| int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, |
| int vf_id, u16 vlan_id, u8 qos) |
| { |
| 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; |
| |
| /* validate the request */ |
| if (vf_id >= pf->num_alloc_vfs) { |
| dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_pvid; |
| } |
| |
| if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { |
| dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); |
| ret = -EINVAL; |
| goto error_pvid; |
| } |
| |
| vf = &(pf->vf[vf_id]); |
| vsi = pf->vsi[vf->lan_vsi_index]; |
| if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { |
| dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_pvid; |
| } |
| |
| if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) { |
| dev_err(&pf->pdev->dev, |
| "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n", |
| vf_id); |
| /* Administrator Error - knock the VF offline until he does |
| * the right thing by reconfiguring his network correctly |
| * and then reloading the VF driver. |
| */ |
| i40e_vc_disable_vf(pf, vf); |
| } |
| |
| /* 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) || |
| (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) && |
| vsi->info.pvid) |
| ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY); |
| |
| if (vsi->info.pvid) { |
| /* kill old VLAN */ |
| ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & |
| VLAN_VID_MASK)); |
| if (ret) { |
| dev_info(&vsi->back->pdev->dev, |
| "remove VLAN failed, ret=%d, aq_err=%d\n", |
| ret, pf->hw.aq.asq_last_status); |
| } |
| } |
| if (vlan_id || qos) |
| ret = i40e_vsi_add_pvid(vsi, |
| vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT)); |
| else |
| i40e_vsi_remove_pvid(vsi); |
| |
| if (vlan_id) { |
| dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", |
| vlan_id, qos, vf_id); |
| |
| /* add new VLAN filter */ |
| ret = i40e_vsi_add_vlan(vsi, vlan_id); |
| if (ret) { |
| dev_info(&vsi->back->pdev->dev, |
| "add VF VLAN failed, ret=%d aq_err=%d\n", ret, |
| vsi->back->hw.aq.asq_last_status); |
| goto error_pvid; |
| } |
| /* Kill non-vlan MAC filters - ignore error return since |
| * there might not be any non-vlan MAC filters. |
| */ |
| i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY); |
| } |
| |
| 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); |
| ret = 0; |
| |
| error_pvid: |
| return ret; |
| } |
| |
| #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ |
| #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ |
| /** |
| * i40e_ndo_set_vf_bw |
| * @netdev: network interface device structure |
| * @vf_id: vf identifier |
| * @tx_rate: 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 speed = 0; |
| int ret = 0; |
| |
| /* validate the request */ |
| if (vf_id >= pf->num_alloc_vfs) { |
| dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| 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); |
| return -EINVAL; |
| } |
| |
| vf = &(pf->vf[vf_id]); |
| vsi = pf->vsi[vf->lan_vsi_index]; |
| if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { |
| dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id); |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| switch (pf->hw.phy.link_info.link_speed) { |
| case I40E_LINK_SPEED_40GB: |
| speed = 40000; |
| break; |
| case I40E_LINK_SPEED_10GB: |
| speed = 10000; |
| break; |
| case I40E_LINK_SPEED_1GB: |
| speed = 1000; |
| break; |
| default: |
| break; |
| } |
| |
| if (max_tx_rate > speed) { |
| dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for vf %d.", |
| max_tx_rate, vf->vf_id); |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| if ((max_tx_rate < 50) && (max_tx_rate > 0)) { |
| dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); |
| max_tx_rate = 50; |
| } |
| |
| /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ |
| ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, |
| max_tx_rate / I40E_BW_CREDIT_DIVISOR, |
| I40E_MAX_BW_INACTIVE_ACCUM, NULL); |
| if (ret) { |
| dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", |
| ret); |
| ret = -EIO; |
| goto error; |
| } |
| vf->tx_rate = max_tx_rate; |
| error: |
| return ret; |
| } |
| |
| /** |
| * i40e_ndo_get_vf_config |
| * @netdev: network interface device structure |
| * @vf_id: vf identifier |
| * @ivi: vf configuration structure |
| * |
| * return vf configuration |
| **/ |
| int i40e_ndo_get_vf_config(struct net_device *netdev, |
| int vf_id, struct ifla_vf_info *ivi) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| struct i40e_vf *vf; |
| int ret = 0; |
| |
| /* validate the request */ |
| if (vf_id >= pf->num_alloc_vfs) { |
| dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_param; |
| } |
| |
| vf = &(pf->vf[vf_id]); |
| /* first vsi is always the LAN vsi */ |
| vsi = pf->vsi[vf->lan_vsi_index]; |
| if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { |
| dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_param; |
| } |
| |
| ivi->vf = vf_id; |
| |
| memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN); |
| |
| ivi->max_tx_rate = vf->tx_rate; |
| ivi->min_tx_rate = 0; |
| ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; |
| ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> |
| I40E_VLAN_PRIORITY_SHIFT; |
| if (vf->link_forced == false) |
| ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; |
| else if (vf->link_up == true) |
| ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; |
| else |
| ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; |
| |
| ret = 0; |
| |
| error_param: |
| return ret; |
| } |
| |
| /** |
| * 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_virtchnl_pf_event pfe; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_vf *vf; |
| int ret = 0; |
| |
| /* validate the request */ |
| if (vf_id >= pf->num_alloc_vfs) { |
| dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| ret = -EINVAL; |
| goto error_out; |
| } |
| |
| vf = &pf->vf[vf_id]; |
| |
| pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; |
| pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; |
| |
| switch (link) { |
| case IFLA_VF_LINK_STATE_AUTO: |
| vf->link_forced = false; |
| pfe.event_data.link_event.link_status = |
| pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; |
| pfe.event_data.link_event.link_speed = |
| pf->hw.phy.link_info.link_speed; |
| break; |
| case IFLA_VF_LINK_STATE_ENABLE: |
| vf->link_forced = true; |
| vf->link_up = true; |
| pfe.event_data.link_event.link_status = true; |
| pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; |
| break; |
| case IFLA_VF_LINK_STATE_DISABLE: |
| vf->link_forced = true; |
| vf->link_up = false; |
| pfe.event_data.link_event.link_status = false; |
| pfe.event_data.link_event.link_speed = 0; |
| break; |
| default: |
| ret = -EINVAL; |
| goto error_out; |
| } |
| /* Notify the VF of its new link state */ |
| i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT, |
| 0, (u8 *)&pfe, sizeof(pfe), NULL); |
| |
| error_out: |
| return ret; |
| } |