--- /dev/null
+/*******************************************************************************
+ *
+ * Intel Ethernet Controller XL710 Family Linux Driver
+ * Copyright(c) 2013 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * 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_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_ctrl_vsi_tx_queue
+ * @vf: pointer to the vf info
+ * @vsi_idx: index of VSI in PF struct
+ * @vsi_queue_id: vsi relative queue index
+ * @ctrl: control flags
+ *
+ * enable/disable/enable check/disable check
+ **/
+static int i40e_ctrl_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
+ u16 vsi_queue_id,
+ enum i40e_queue_ctrl ctrl)
+{
+ struct i40e_pf *pf = vf->pf;
+ struct i40e_hw *hw = &pf->hw;
+ bool writeback = false;
+ u16 pf_queue_id;
+ int ret = 0;
+ u32 reg;
+
+ pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
+ reg = rd32(hw, I40E_QTX_ENA(pf_queue_id));
+
+ switch (ctrl) {
+ case I40E_QUEUE_CTRL_ENABLE:
+ reg |= I40E_QTX_ENA_QENA_REQ_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_ENABLECHECK:
+ ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? 0 : -EPERM;
+ break;
+ case I40E_QUEUE_CTRL_DISABLE:
+ reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_DISABLECHECK:
+ ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
+ break;
+ case I40E_QUEUE_CTRL_FASTDISABLE:
+ reg |= I40E_QTX_ENA_FAST_QDIS_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_FASTDISABLECHECK:
+ ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
+ if (!ret) {
+ reg &= ~I40E_QTX_ENA_FAST_QDIS_MASK;
+ writeback = true;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (writeback) {
+ wr32(hw, I40E_QTX_ENA(pf_queue_id), reg);
+ i40e_flush(hw);
+ }
+
+ return ret;
+}
+
+/**
+ * i40e_ctrl_vsi_rx_queue
+ * @vf: pointer to the vf info
+ * @vsi_idx: index of VSI in PF struct
+ * @vsi_queue_id: vsi relative queue index
+ * @ctrl: control flags
+ *
+ * enable/disable/enable check/disable check
+ **/
+static int i40e_ctrl_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
+ u16 vsi_queue_id,
+ enum i40e_queue_ctrl ctrl)
+{
+ struct i40e_pf *pf = vf->pf;
+ struct i40e_hw *hw = &pf->hw;
+ bool writeback = false;
+ u16 pf_queue_id;
+ int ret = 0;
+ u32 reg;
+
+ pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
+ reg = rd32(hw, I40E_QRX_ENA(pf_queue_id));
+
+ switch (ctrl) {
+ case I40E_QUEUE_CTRL_ENABLE:
+ reg |= I40E_QRX_ENA_QENA_REQ_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_ENABLECHECK:
+ ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? 0 : -EPERM;
+ break;
+ case I40E_QUEUE_CTRL_DISABLE:
+ reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_DISABLECHECK:
+ ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
+ break;
+ case I40E_QUEUE_CTRL_FASTDISABLE:
+ reg |= I40E_QRX_ENA_FAST_QDIS_MASK;
+ writeback = true;
+ break;
+ case I40E_QUEUE_CTRL_FASTDISABLECHECK:
+ ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
+ if (!ret) {
+ reg &= ~I40E_QRX_ENA_FAST_QDIS_MASK;
+ writeback = true;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (writeback) {
+ wr32(hw, I40E_QRX_ENA(pf_queue_id), reg);
+ i40e_flush(hw);
+ }
+
+ return ret;
+}
+
+/**
+ * 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;
+ vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (vsi_queue_id < I40E_MAX_VSI_QP) {
+ linklistmap |= (1 <<
+ (I40E_VIRTCHNL_SUPPORTED_QTYPES *
+ vsi_queue_id));
+ vsi_queue_id =
+ find_next_bit(&tempmap, I40E_MAX_VSI_QP, vsi_queue_id + 1);
+ }
+
+ tempmap = vecmap->txq_map;
+ vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (vsi_queue_id < I40E_MAX_VSI_QP) {
+ linklistmap |= (1 <<
+ (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
+ + 1));
+ vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ 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;
+
+ /* 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->hmc.hmc_fn_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;
+
+ /* 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_hw *hw = &pf->hw;
+ 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) {
+ vf->lan_vsi_index = vsi->idx;
+ vf->lan_vsi_id = vsi->id;
+ dev_info(&pf->pdev->dev,
+ "LAN VSI index %d, VSI id %d\n",
+ vsi->idx, vsi->id);
+ f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
+ 0, true, false);
+ }
+ if (!f) {
+ dev_err(&pf->pdev->dev, "Unable to add ucast filter\n");
+ ret = -ENOMEM;
+ goto error_alloc_vsi_res;
+ }
+
+ /* program mac filter */
+ ret = i40e_sync_vsi_filters(vsi);
+ if (ret) {
+ dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
+ goto error_alloc_vsi_res;
+ }
+
+ /* accept bcast pkts. by default */
+ ret = i40e_aq_set_vsi_broadcast(hw, vsi->seid, true, NULL);
+ if (ret) {
+ dev_err(&pf->pdev->dev,
+ "set vsi bcast failed for vf %d, vsi %d, aq_err %d\n",
+ vf->vf_id, vsi->idx, pf->hw.aq.asq_last_status);
+ ret = -EINVAL;
+ }
+
+error_alloc_vsi_res:
+ return ret;
+}
+
+/**
+ * i40e_reset_vf
+ * @vf: pointer to the vf structure
+ * @flr: VFLR was issued or not
+ *
+ * reset the vf
+ **/
+int i40e_reset_vf(struct i40e_vf *vf, bool flr)
+{
+ int ret = -ENOENT;
+ struct i40e_pf *pf = vf->pf;
+ struct i40e_hw *hw = &pf->hw;
+ u32 reg, reg_idx, msix_vf;
+ bool rsd = false;
+ u16 pf_queue_id;
+ int i, j;
+
+ /* warn the VF */
+ wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_INPROGRESS);
+
+ clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
+
+ /* PF triggers VFR only when VF requests, in case of
+ * VFLR, HW triggers VFR
+ */
+ if (!flr) {
+ /* reset vf using VPGEN_VFRTRIG reg */
+ reg = I40E_VPGEN_VFRTRIG_VFSWR_MASK;
+ wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
+ i40e_flush(hw);
+ }
+
+ /* poll VPGEN_VFRSTAT reg to make sure
+ * that reset is complete
+ */
+ for (i = 0; i < 4; 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 %d\n",
+ vf->vf_id);
+
+ /* fast disable qps */
+ for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
+ ret = i40e_ctrl_vsi_tx_queue(vf, vf->lan_vsi_index, j,
+ I40E_QUEUE_CTRL_FASTDISABLE);
+ ret = i40e_ctrl_vsi_rx_queue(vf, vf->lan_vsi_index, j,
+ I40E_QUEUE_CTRL_FASTDISABLE);
+ }
+
+ /* Queue enable/disable requires driver to
+ * first reset the vf & than poll the status register
+ * to make sure that the requested op was completed
+ * successfully
+ */
+ udelay(10);
+ for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
+ ret = i40e_ctrl_vsi_tx_queue(vf, vf->lan_vsi_index, j,
+ I40E_QUEUE_CTRL_FASTDISABLECHECK);
+ if (ret)
+ dev_info(&pf->pdev->dev,
+ "Queue control check failed on Tx queue %d of VSI %d VF %d\n",
+ vf->lan_vsi_index, j, vf->vf_id);
+ ret = i40e_ctrl_vsi_rx_queue(vf, vf->lan_vsi_index, j,
+ I40E_QUEUE_CTRL_FASTDISABLECHECK);
+ if (ret)
+ dev_info(&pf->pdev->dev,
+ "Queue control check failed on Rx queue %d of VSI %d VF %d\n",
+ vf->lan_vsi_index, j, vf->vf_id);
+ }
+
+ /* clear the irq settings */
+ msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
+ 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);
+ }
+ /* 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);
+ }
+
+ /* set the defaults for the rqctl & tqctl registers */
+ reg = (I40E_QINT_RQCTL_NEXTQ_INDX_MASK | I40E_QINT_RQCTL_ITR_INDX_MASK |
+ I40E_QINT_RQCTL_NEXTQ_TYPE_MASK);
+ for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
+ pf_queue_id = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
+ wr32(hw, I40E_QINT_RQCTL(pf_queue_id), reg);
+ wr32(hw, I40E_QINT_TQCTL(pf_queue_id), reg);
+ }
+
+ /* 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);
+ /* tell the VF the reset is done */
+ wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
+ i40e_flush(hw);
+
+ 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;
+
+ /* 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;
+ }
+ /* 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;
+}
+
+/**
+ * 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_VF_DEVICE_ID , 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_VF_DEVICE_ID,
+ vfdev);
+ }
+
+ return false;
+}
+
+/**
+ * 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;
+ int i;
+
+ if (!pf->vf)
+ return;
+
+ /* Disable interrupt 0 so we don't try to handle the VFLR. */
+ wr32(hw, I40E_PFINT_DYN_CTL0, 0);
+ i40e_flush(hw);
+
+ /* free up vf resources */
+ for (i = 0; i < pf->num_alloc_vfs; 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;
+ pf->num_alloc_vfs = 0;
+
+ if (!i40e_vfs_are_assigned(pf))
+ pci_disable_sriov(pf->pdev);
+ else
+ dev_warn(&pf->pdev->dev,
+ "unable to disable SR-IOV because VFs are assigned.\n");
+
+ /* Re-enable interrupt 0. */
+ wr32(hw, I40E_PFINT_DYN_CTL0,
+ I40E_PFINT_DYN_CTL0_INTENA_MASK |
+ I40E_PFINT_DYN_CTL0_CLEARPBA_MASK |
+ (I40E_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT));
+ i40e_flush(hw);
+}
+
+#ifdef CONFIG_PCI_IOV
+/**
+ * i40e_alloc_vfs
+ * @pf: pointer to the pf structure
+ * @num_alloc_vfs: number of vfs to allocate
+ *
+ * allocate vf resources
+ **/
+static int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
+{
+ struct i40e_vf *vfs;
+ int i, ret = 0;
+
+ ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
+ if (ret) {
+ dev_err(&pf->pdev->dev,
+ "pci_enable_sriov failed with error %d!\n", ret);
+ pf->num_alloc_vfs = 0;
+ goto err_iov;
+ }
+
+ /* allocate memory */
+ vfs = kzalloc(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);
+
+ ret = i40e_alloc_vf_res(&vfs[i]);
+ i40e_reset_vf(&vfs[i], true);
+ if (ret)
+ break;
+
+ /* enable vf vplan_qtable mappings */
+ i40e_enable_vf_mappings(&vfs[i]);
+ }
+ pf->vf = vfs;
+ pf->num_alloc_vfs = num_alloc_vfs;
+
+err_alloc:
+ if (ret)
+ i40e_free_vfs(pf);
+err_iov:
+ 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);
+
+ i40e_free_vfs(pf);
+ 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;
+ 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, vf->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 int i40e_vc_reset_vf_msg(struct i40e_vf *vf)
+{
+ if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
+ return -ENOENT;
+
+ return 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;
+ vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (vsi_queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
+ vsi_queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ vsi_queue_id + 1);
+ }
+
+ tempmap = map->txq_map;
+ vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (vsi_queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
+ vsi_queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ vsi_queue_id + 1);
+ }
+
+ 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;
+ unsigned long tempmap;
+ u16 queue_id;
+
+ 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;
+ }
+
+ tempmap = vqs->rx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_ENABLE);
+
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ tempmap = vqs->tx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_ENABLE);
+
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ /* Poll the status register to make sure that the
+ * requested op was completed successfully
+ */
+ udelay(10);
+
+ tempmap = vqs->rx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_ENABLECHECK)) {
+ dev_err(&pf->pdev->dev,
+ "Queue control check failed on RX queue %d of VSI %d VF %d\n",
+ queue_id, vsi_id, vf->vf_id);
+ }
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ tempmap = vqs->tx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_ENABLECHECK)) {
+ dev_err(&pf->pdev->dev,
+ "Queue control check failed on TX queue %d of VSI %d VF %d\n",
+ queue_id, vsi_id, vf->vf_id);
+ }
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+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;
+ unsigned long tempmap;
+ u16 queue_id;
+
+ 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;
+ }
+
+ tempmap = vqs->rx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_DISABLE);
+
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ tempmap = vqs->tx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_DISABLE);
+
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ /* Poll the status register to make sure that the
+ * requested op was completed successfully
+ */
+ udelay(10);
+
+ tempmap = vqs->rx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_DISABLECHECK)) {
+ dev_err(&pf->pdev->dev,
+ "Queue control check failed on RX queue %d of VSI %d VF %d\n",
+ queue_id, vsi_id, vf->vf_id);
+ }
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+ tempmap = vqs->tx_queues;
+ queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
+ while (queue_id < I40E_MAX_VSI_QP) {
+ if (i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
+ I40E_QUEUE_CTRL_DISABLECHECK)) {
+ dev_err(&pf->pdev->dev,
+ "Queue control check failed on TX queue %d of VSI %d VF %d\n",
+ queue_id, vsi_id, vf->vf_id);
+ }
+ queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
+ queue_id + 1);
+ }
+
+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);
+ memcpy(&stats, &vsi->eth_stats, sizeof(struct i40e_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_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 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 < 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 %pMAC\n",
+ al->list[i].addr);
+ aq_ret = I40E_ERR_PARAM;
+ 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");
+ aq_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,
+ aq_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 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;
+ }
+ 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,
+ aq_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_fcoe_msg
+ * @vf: pointer to the vf info
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ *
+ * called from the vf for the fcoe msgs
+ **/
+static int i40e_vc_fcoe_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
+{
+ i40e_status aq_ret = 0;
+
+ if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
+ !test_bit(I40E_VF_STAT_FCOEENA, &vf->vf_states)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto error_param;
+ }
+ aq_ret = I40E_ERR_NOT_IMPLEMENTED;
+
+error_param:
+ /* send the response to the vf */
+ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_FCOE, 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_vf *vf = &(pf->vf[vf_id]);
+ struct i40e_hw *hw = &pf->hw;
+ int ret;
+
+ pf->vf_aq_requests++;
+ /* 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\n", vf_id);
+ return ret;
+ }
+ wr32(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_VFR_VFACTIVE);
+ 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:
+ ret = i40e_vc_reset_vf_msg(vf);
+ 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_FCOE:
+ ret = i40e_vc_fcoe_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, 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 (i40e_reset_vf(vf, true))
+ dev_err(&pf->pdev->dev,
+ "Unable to reset the VF %d\n", vf_id);
+ /* free up vf resources to destroy vsi state */
+ i40e_free_vf_res(vf);
+
+ /* allocate new vf resources with the default state */
+ if (i40e_alloc_vf_res(vf))
+ dev_err(&pf->pdev->dev,
+ "Unable to allocate VF resources %d\n",
+ vf_id);
+
+ i40e_enable_vf_mappings(vf);
+ }
+ }
+
+ /* 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;
+
+ pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+ pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
+ 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;
+
+ i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
+ (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
+}
+
+/**
+ * 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, 0, true, false);
+
+ /* add the new mac address */
+ f = i40e_add_filter(vsi, mac, 0, 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);
+ 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) {
+ /* 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_vlan_stripping_disable(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;
+ }
+ }
+
+ if (ret) {
+ dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
+ goto error_pvid;
+ }
+ ret = 0;
+
+error_pvid:
+ return ret;
+}
+
+/**
+ * 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 tx_rate)
+{
+ return -EOPNOTSUPP;
+}
+
+/**
+ * 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_mac_filter *f, *ftmp;
+ 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;
+
+ /* first entry of the list is the default ethernet address */
+ list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
+ memcpy(&ivi->mac, f->macaddr, I40E_ETH_LENGTH_OF_ADDRESS);
+ break;
+ }
+
+ ivi->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;
+ ret = 0;
+
+error_param:
+ return ret;
+}
projects / mirror_ubuntu-kernels.git / commitdiff